2q5/BQ2nb1b/q2r4/4r2p/2rn3p/3R2Q1/r1qPNK1Q/k3b1r1 w - - 0 1 illegal: No possible last move
1qNN4/b2rn3/2K4r/r1Q4r/3bQB1k/q1Q2qn1/N5b1/r4nQb w - - 0 1 legal: proof: f4 c5 h4 g5 b4 e5 d4 cxd4 b5 exf4 Rh2 a6 Rh1 axb5 a4 gxh4 e3 Qf6 a5 Qd6 Bc4 Qe7 Ra4 Qd8 g4 bxa4 Ba6 a3 Rh2 Nxa6 Rd2 a2 Rd3 Nb8 Rc3 Qg5 Rc5 Qd8 Rg5 Ne7 Rg8 Nxg8 Ke2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 a1B c4 f5 c5 h5 e4 b5 e5 h3 e6 h2 e7 h1R e8Q h4 c6 h3 a6 b4 c7 b3 a7 h2 Qde1 d3 Qc3 d2 Qg6+ Kh4 g5 d1Q+ Bd2 b2 Ne2 f3 Nf4 f2 Qc1 f1Q Nd3 f4 Qg7 f3 g6 f2 Qcc3 Rh6 Qh7 Qh3 g7 f1N Qh8 Na6 Be3 Bc5 Qe5 Bb7+ Kc4 d5+ Kb5 d4 c8Q Bg2 Qeb8 Ne7 g8Q Ng6 Qbb7 Qdf3 Na3 b1R+ Nb4 d3 Qf5 d2 Bf4 d1R Qbe4 Qb8+ Kc6 Bad4 Nc4 Ra1 Na2 Bb6 Qff8 Nc5 Ne5 Qa3 Qc8 Qhf3 Nf7 Rh5 Nd8 Rd3 Qed5 Ne4 Qhg7 Neg3 Qe4 Bc3 Qf5 Rd7 Qc5 Bd4 Qgc4 Rb1 Qc2 Rb5 Q5c3 Ra5 Qf2 Rh6 Qf8 Rah5 Qfc5 Rg1 Qfe3 h1B Qee1 Nh2 Qee3 Ra1 Qg1 Nhf1 Bd2+ Qbf4 Be3 Rb8 a8N Ba7 Bc1 Rb5 Nb6 Ra5 Be3 Qf2 Nc8 Qf3 Qed5 Qe5 Bf4 Qb8 Qe4 Ne7+
K1B1q2R/Np3n1p/1rP5/1Q2b1k1/3p2nn/3NN2q/5N1r/1qr1b3 w - - 0 1 legal: proof: b4 g5 f4 e5 h4 gxh4 a4 exf4 d4 c5 b5 cxd4 b6 axb6 e4 d5 a5 bxa5 Ra3 d3 Nh3 d4 Kd2 a4 Ng1 Be6 Ke1 Bd5 exd5 Bxa3 Bb2 Bf8 Bc3 a3 Ba5 Qd6 Bd8 Qxd8 Kf2 Ke7 Kf3 Kf6 Ke4 a2 c4 a1B g4 h3 c5 f3 d6 f2 Kd5 h2 d7 d2 Qc1 d1Q Nh3 Bd6 Nd2 Ra6 Qb1 Be5 Nf3 Bc3 Qb5 Nh6 Rg1 h1R Ne1 Nc6 Nd3 Qe8 d8N Be1 g5+ Kg6 Be2 f1N Bg4 f5 Nhf2 f4 Bc8 f3 Rg3 Kh5 g6 Nd2 g7 Qb1 g8N Ng4 Nh6 Rb6 Nf5 Kg5 Ne3 Rh2 Rg1 Rf8 Rg2 Rf7 Rg1 Rc7 Rf1 Bh8 Kd6 Nce5+ Nc6 Nf7+ Kd5 Nd8 Na7 Be5 Rg1 Nf7 c6 Re7 Kc5 Re6 Nh1 f2 Rg3 f1Q Nhf2 Qh3 Rf3 Nfh6 Rf8 Nf3 Rh8 Nh4 Nd5 Bg7 Ne3 Re5+ Kd6 Rc5 Kc7 Nf7 Kb8 Be5+ Ka8 Rc1
1q6/Nq2n2N/5PrK/br1r1R2/1rpNk1b1/7p/3pN1nP/bq2N3 w - - 0 1 legal: proof: e4 a5 a4 e5 c4 b5 f4 bxc4 d4 c3 b4 axb4 a5 b3 f5 exd4 e5 f6 e6 Ra7 Ba6 Rxa6 Bf4 Ra8 Be5 fxe5 f6 g6 Qf3 Bd6 Qf5 gxf5 Ra4 Bf8 Rb4 Na6 Rb8 Nxb8 Kf2 d5 Kf3 h5 g4 c5 g5 e4+ Kf4 c2 a6 c1Q+ Nd2 c4 g6 d3 Kg5 h4 e7 Kd7 e8N Ke6 a7 Ke5 g7 b2 Ne2 b1R Nc3 d4 Rg1 h3 Ne2 f4 Rg2 f3 Nc7 e3 Nf4 f2 Nf3+ Ke4 Ne2 f1Q Na6 d2 Nc7 d1R Ne6 d3 N6d4 Bg4 Nh4 Na6 Kg6 Rb4 Nhf3 Bc5 Ne6 Rab8 a8N Nc7 N6f4 Qb1 Nfd4 Qh1 Nf3 Ne7+ Kg5 Rg8 Ned4 e2 Ne1 Ncd5 Nc7 Ne3 Rf2 R8b5 Nce6 Ng2 Nf8 Qb8 Nh7 Bd6+ Kh6 Be5 Nfe6 Rd2 Rf5 Rd1 Nf4 Rd2 Nef3 e1B Nfe2 Rd1 Neg1 Bc3 Nge2 Bc7 Ne1 Ba1 Rd5 Ba5 Rf5 Rd8 g8N d2 Kg7 Rdd5 Kh6 Nc6 Ne7 Rc1 Nc8 Ne7 Nc6 Rc3 N8a7 Rg3 Nc2 Qhg1 Ne1 Qgb6 Ncd4 Q6b7 Rg5 Be6 Rf5 Rg7 Rf3 Bg4 Rf5 Rg6#
q2N2Nr/Br5q/1bB5/r4knB/2r5/r4b2/1NqpRpK1/2R1nQb1 w - - 0 1 illegal: No possible last move
B2qbn2/3k3N/1bpqR3/rrQ5/1p1b3N/3K1R2/Q2n1B2/1B2b1rb w - - 0 1 legal: proof: e4 g5 h4 gxh4 b4 a5 c4 axb4 f4 e5 a4 bxa3 f5 d5 exd5 e4 c5 e3 Ke2 f6 Kd3 e2 c6 Bxf5+ Kc3 Bc8 Qb3 f5 Kc2 f4 Qe3+ fxe3 Rh2 Nxc6 Rh1 Nb8 g4 e1B d4 b5 g5 h5 d6 b4 d7+ Ke7 g6 e2 d5 a2 g7 h3 Kd3 h4 Nf3 h2 Nc3 h3 Ne4 Ra5 Neg5 Rh5 Bg2 Nf6 g8B Ne4 Nh7 Nd2 Rf1 h1B Nh4 h2 Rf3 Rf5 Rb1 a1B Bb2 Bh6 Bd4 Be3 Ba7 Bg1 Bf2 Bd4 Bf7 Bb7 Bg6 Bc6 d6+ Ke6 Ra1 Ba4 Rc1 Rfb5 Rc6 Bb6 Bg3 Bgd4 Bf2 Qe7 d8Q Nd7 Qb8 Nf8 d7+ Qd6 Qa8 Ke7 d8Q+ Ke6 Qg5 Kd7 Rc5 Bb3 Qa6 Bf7 Be4 Be8 Ba8 c6 Re5 Ng6 Re6 Nf8 Bg3 Bef2 Bf1 e1Q Qc5 Qd1 Bg2 Be1 Bf2 Qa4 Bh3 Qa2 Bf5 Qad5 Be4 Qg5 Bd5 Qd8 Ba2 Bg2 Bb1 h1R Qf5 Rg1 Qc5 Ra2 Qa3 Bh1 Qb2 Ra4 Qa2 Raa5
5B2/b1n3N1/N2q3b/1k1NB3/b3rnRp/3n1bqb/3KR1Q1/1bbQ2r1 w - - 0 1 legal: proof: g4 c5 f4 e5 h4 exf4 d4 cxd4 b4 a5 h5 axb4 a3 bxa3 g5 Qe7 g6 Qf6 Bh3 Qe7 Bg4 hxg6 h6 Qd8 Bh5 gxh5 e4 b5 c4 f5 c5 d5 e5 Kd7 e6+ Kc6 h7 g5 e7 h4 e8N g4 Bb2 g3 Nd2 g2 Rc1 a2 Nf1 a1B Nf3 g1B Qb3 d3 Rb1 d2+ Kd1 d4 Qe6+ Qd6 Kc2 d1B+ Kc1 d3 Rh2 b4 Qf7 b3 Ng3 Ra4 Rc2 Re4 Qf6 Na6 Bc3 b2+ Kd2 Ne7 Nf1 Bb7 Rbc1 b1B Ne3 Bh6 Bb4 Bb2 Qg5 Rg8 h8B Nc7 Be5 Ned5 Qg4 Kb5 Nh2 f3 c6 f4 Qh3 f2 Rc4 f1Q Ng7 f3 Ng4 f2 Qg2 Ba4 Re1 Nf4 Nf6 Ba8 Ned5 Bc1+ Kc3 d2 Re2 Qe1 Nd7 f1B Nc5 Bb7 Na6 Ba7 Ba3 Qg6 Bf8 Qd6 Qf3 Bh3 Qg2 Ne8 c7 Qg3+ Qf3 Bc6 c8Q Nc7 Qe6 Be8 Qd3 Bh5 Qg6 Bf3 Qg5 Ba3 Qg4 d1N+ Kd2 Nb2 Qc2 Nbd3 Qd1 Qh2 Qg2 Qg3 Rd4 Bc1+ Kc3 Re3 Qgg1 Ng2 Nh5 Qg4 Qh1 Rg5 Ng7 Qf4 Qhf1 Qh2 Rf4 Re4 Qf2 Rg3 Rg4 Ngf4 Qff1 Rg1 Qg2 Bb2+ Kd2 Qg3 Qh2 Ba3 Qg2 Bc1+
1R2q3/1r5k/1qNpq2b/5NR1/1p2rq2/p3p1rB/Q2N2B1/NbKn4 w - - 0 1 legal: proof: e4 a5 b4 b5 a4 bxa4 h4 f5 c4 fxe4 d4 c5 h5 cxd4 h6 a3 Bg5 gxh6 Bc1 h5 Bb2 h4 Bc3 Na6 Nf3 Nc7 Ng1 Nb5 cxb5 axb4 Qd2 dxc3 Qd6 Ba6 Qd1 Bc8 f4 Kf7 g4 Kg6 g5 e5 b6 h5 f5+ Kh7 b7 h3 b8N c2 Kd2 c1Q+ Ke2 h2 f6 h4 f7 d6 Qd4 e3 Na6 e4 Bg2 h3 Qd5 Nf6 Qa2 Qe8 Nf3 Bf5 Nfd2 Ng4 Nb8 Ra7 Nc6 Nf2 Nb3 Rg8 N1d2 Bh6 Rg1 Qc5 Rae1 h1Q Na1 h2 Ref1 Qb6 f8N+ Kh8 g6 Nd1 Rf2 Rb7 Ne6 Rgg7 Ke1 e2 Ned4 Rg8 g7+ Kh7 Bh3 Qf3 Rg5 h1R+ Rf1 Bg6 Nf5 Qf4 Bg2 Rh3 Rf3 Qe6 Re3 Re8 g8B+ Kh8 Bf7 Kh7 Rc3 Rf3 Rc5 Rg3 Rb5 Qd7 Be6 Re7 Ne3 Qe8 Beh3 Re6 Ndf1 Ree7 Kd2 e1Q+ Kc1 Qe2 Nd2 Qc4+ Nec2 Qe6 N2d4 e3 Nf5 Qc7 Ng7 Bb1 Nf5 Qcb8 Ra5 Qc7 Ra8 Qb6 Rc8 Q6g6 Ra8 Re4 Rb8 Qge6
bn1n2n1/8/kr1K1bbB/2rQR3/r1pb2B1/NN2r3/qq6/1B2nRB1 w - - 0 1 legal: proof: f4 d5 e4 e5 c4 exf4 h4 dxc4 b4 a5 e5 g5 e6 gxh4 e7 axb4 a3 Kd7 e8R bxa3 Re3 fxe3 Nc3 Ke7 Nb1 Ke8 Ke2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 c5 g4 f5 d4 h5 d5 f4 g5 f3 g6 h3 g7 h4 d6 h2 d7 a2 Bh3 f2 Bd2 f1R Qb3+ Ka6 Na3 b5 Bf5 h3 Qa4+ Qa5 d8B e2 Bb6 e1N Be4 b4 Rd1 a1B+ Kd5 c3 Bh7 c4+ Nb5 c2 Nf3 c1Q Ba7 b3 Bf2 b2 Nh4 b1R Bfe3 Be7 Ng2 Rf3 Bh6 Qb2 Ne3 Bf6 Rc1 Bf5 Qa3 Bg6 Nf1 Re3 Qd3 Qaa2 Na3 Bd4 Rg1 h1N Kd6 h2 Rg5 Nf2 Re5 h1B Bb4 Bd5 Nd2 Nh3 Nb3 Nf4 Bc5 Ne6 Qe4 Bb7 Qd5 Nd8 Rd1 Ra7 Bb6 Ba8 Bc5 Nf6 g8B Rc7 Ba7 Rc5 Be6 Re8 Bg4 Ng8 Rd2 Re7 Rf2 Rb7 Rf1 Rb4 Ref5 Bf6 Re5 Ra4 Bb6 Qc2 Ba7 Bd4 Bb6 Qcb2 Ba7 Be8 Bhf5 Bg6 Bb6 Ra1 Bb1 Rb4 Ba7 Rb6+ Qc6 Rd3 Nc2 Qa4 Nc1 Rb5 Bf4 Bc3+ Kc7 Rg3 Qc5 Rd6 Qd5 Rf3 Bae3 Rdb6 Bg1 Bd4 Nb3 Re3 Bg5 Qa5 Bh6 Rc5+ Qc6 Ra4 Kd6 Qd2 Na3 Qa2 Rf2 Qdb2 Rff5 Ka7 Rf1 Rbb5 Qe4 Ka6 Qd5 Rb6+
Q1qk1BKn/8/2RN2b1/2bpnr1Q/rR1bB1bq/3n4/1q2n1b1/1R3Q2 w - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 a4 bxa4 f4 e5 f5 g5 b5 gxh4 b6 a5 b7 a3 f6 a4 Nd2 a2 Nb1 Qxf6 Nc3 a3 Nd5 Qg5 Nf4 exf4 Bd2 Qd8 Bc1 Nc6 b8Q Nxb8 Kd2 h5 Kd3 f5 Kc4 d5+ Kb5 d3 c4 h3 g4 d2 e4 f3 c5 h2 c6 f4 e5 h4 e6 f2 e7 f3 Kc5 h3 c7 Rh5 g5 Bf5 c8R Ra4 g6 Nc6 g7 Bg6 Ra8 Ne5 Rc8 Rf5 Ne2 Nh6 g8Q Nhf7 Nc3 Nh8 Rb8 Qc8+ Kb6 Kd7 Qe1 d1B Rb1 a1Q Bg2 f1N Bd2 f2 Ne4 a2 Bh6 Bg4 Nd6 Ng3 Qf1 Ne2 Be4 Qac3 Kb5 a1B e8Q+ Kc7 Rg1 Qb2+ Kc5 h1Q Rb4 h2 Rg3 Be7 Rc3 Bf8 Qh7+ Be7 Qc6+ Kd8 Bg7 Bf8 Qh5 Be7 Qg2 Qe1 Bf8 f1B Qf2 Bg2 Qf1 h1N Rc2 Qb8 Qa8 Qh4 Rcc4 Nc3 Kd4 Nf2 Rc6 Qc8 Kc5 Bg5 Ne8 Be3+ Kd6 Nd7 Ke6 Ne2 Nd6 Nd3 Qh6 Bc5 Qh5 Qb8 Rc4 N7e5 Rb4 Rg5+ Kf6 Rf5+ Kg7 Qc8 Kg8 Qd2 Rd1 Bad4 Rdb1 Qb2
Kn4R1/5BpQ/1r6/3Q4/Qbp1q1BB/Nbq2b2/1N1q3r/qqqn3k w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 dxc4 f4 e5 f5 h5 f6 hxg4 Ra3 b3 Ra1 Rxa4 Ra3 b2 Rf3 Ra6 Rf4 exf4 Qc2 Ra8 Qb3 Qxf6 Qd1 Qd8 Kf2 Ke7 e4 Kf6 h4 Ke5 d3 f5 h5 b5 h6 c5 h7 f3 Ke3 f2 Na3 b1Q Be2 f1Q Qd2 c3 Qa2 g3 Rh5 c2 Nh3 g2 Ng5 g1Q+ Kd2 Kf4 Kc3+ Kg3 d4 Kg2 e5 b4+ Kc4 b3 Kb5 b2 e6 f4 e7 f3 e8B f2 d5 Qe1 d6 f1B d7 Nf6 Qb3 Nd5 Qa4 Ra6 Bf7 Bb7 Nf3 Ne3 Nd2 Nd1 Ndc4 Bf3 Bg5 c1Q Bh4 Qec3 Rd5 Qdg5 d8Q Kh1 Re5 Qh6 Re8 Qhd2 Qd5 Qe4 Rc8 b1Q+ Nb2 c4 Re8 Bb4 Rg8 B3g2 Beh5 Bf3 Bg4 Rd6 Qd4 B1e2 Qd5 Nc6 Ka6 Nb8+ Kb7 Rb6+ Ka8 Bd3 Rf8 Bc2 Rg8 Bb3 Rd8 Rg8 h8Q Qgd4 Qh7 Rh8 Rg8 Qf6 Nd3 Qca1 Nb2 Qfc3 Qf5 Rhh6 Qh7 Rh5 Bg3 Rh3 Bh4 Rh2
R1B2kbR/3bpp2/Q7/1N2nb2/2pb3q/1np1r1bB/1b3K2/Qr4RQ w - - 0 1 legal: proof: c4 a5 f4 d5 e4 dxe4 b4 b5 g4 bxc4 b5 g5 Ba3 h6 Bb4 axb4 Na3 gxf4 g5 h5 Nc2 Ra4 Ne3 Ra8 Ng4 hxg4 d4 c5 a4 c3 h4 f3 h5 e3 a5 e2 d5 g3 g6 g2 g7 Bf5 d6 Nf6 g8R Nfd7 a6 Ne5 h6 Nbd7 a7 Rb8 Rg6 Bg7 a8B Kf8 Kf2 e1B+ Ke3 f2 Ne2 g1B h7 Bh2 Bh3 f1B b6 b3 b7 b2 Ra6 b1B Rgg1 c4 Nd4 Bd2+ Kf2 Bc1 Nb5 Nc5 d7 Nb3 Qe1 Qe8 d8Q Bb2 Qa5 Qc6 Ra7 Qh6 Qa6 Bg2 Qc1 Bc6 Qf1 Rg8 h8Q Bcd7 Qe1 Bbd3 Qea1 Qf6 Qh4 Bh8 Qh7 Rg3 Qh5 Qh4 Qh7 Re8 b8Q Bc2 Qbd6 Rb8 Bb7 Bf6 Bc8 Re3+ Rg3 Bb1 Ra8 Bg7 Qh5 Bh7 Qf3 Bg8 Rg1 Bbf5 Qh1 Ng6 Qf4 Bd4 Qg5 Ne5 Qf4 Qh6 Rg5 Rb7 Qg3 Qh4 Rh5 Nc1 Rb8 Ba3 Nc7 Rb1 Ra8 Nb3 Rh8 Bb2 Nb5 Bxg3+
2B1rq1r/n2B1nq1/p2r2n1/N1p1B2R/1K2r3/4k1rR/1Qb2b2/R4B1r w - - 0 1 illegal: No possible last move
1q1R2qq/q6N/B1nb4/3bB2K/3p2p1/r1kn1B2/prN2pQ1/1rB1N3 w - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 g4 b5 f4 exf4 a5 h5 a6 hxg4 Ra4 bxa4 Qd2 a3 Qd3 Bxb4+ Qd2 Bf8 Qd1 a2 Kf2 Nxa6 Ke1 Nb8 Kf2 Ke7 e4 Ke6 c4 Ke5 h4 a1Q h5 f5 c5 a5 c6 d5 h6 g5 c7 g3+ Kf3 d3 h7 Kd4 e5 a4 e6 d2 e7 a3 e8N g2 Be2 g4+ Kf2 f3 Kg3 f2 Nd6 f1Q Nc3 a2 Nf7 f4+ Kh2 f3 Kg3 Nh6 Nh3 g1Q+ Kf4 Ra3 Nfg5 Bb7 c8B Nc6 Nb1 Nf7 Nf2 Nfe5 Qc2 d1R Nd3 Bd6 Ne1 Qg8 Rh3 Ba8 Bca6 Nd3+ Kf5 Qb8 Kg6 Qe3 Kh5 f2 Bf3 Qe6 Qb3 Qeg8 Qb7 Qe2 Rh4 Qe3 Rh1 Rd2 Rh3 Rb2 Rh4 Rab3 Na3 Kc3 Nac2 Qea7 Rh1 Ra3 Rh2 Qgf8 Rh3 Rg8 h8B+ Rg7 Rh2 Qg8 Nh7 d4 Rh1 Re7 Be5 Rg7 Qb5 Rb7 Qd5 Rb1 Be2 R7b2 Qg2 Na5 Rh3 Bd5 Rf3 Nc6 Rf8 Rb7 Bf3 Qb2 Rf5 Qh8 Rf7 Qb3 Rf8 Qc4 Rg8 R7b2 Rd8 Qcb3 Rd7 Qbg8 Rd8 Qbb8
QrQ2N2/R4prN/r5r1/1nK3R1/3n1B2/1k2r1bR/2qnb2R/1b3nq1 w - - 0 1 legal: proof: h4 a5 f4 c5 d4 cxd4 a4 e5 b4 exf4 e3 axb4 a5 g5 a6 gxh4 Bb2 Rxa6 Bb5 b3 Ba4 Rxa4 Bc1 Ra8 Kf2 Ke7 c4 Kd6 g4 Kc5 e4 Kb4 c5 d5 c6 b5 e5 h5 g5 f3 e6 d3 Ke3 f2 Kd4 f1N e7 d2 e8R b2 g6 h3 c7 h2 g7 h4 Re1 h3 Qc2 d1R+ Qd2+ Kb3 Ra2 b4 Na3 b1B Rc2 Ne7 g8Q Bg4 c8R Qb6+ R2c5 Nf5+ Ke5 d4 Kd5 d3 Ree8 Bd6 Qg7 Re1 Qe2 d2 Qg2 d1Q+ Qd2 Re3 R8c6 Ra6 Rec8 Bg3 Rh6 Nc6 Qf8 Nd6 Rc7 Nd4 Qa8 Qc2 Nc4 N6b5 Nf3 Rb8 Ng5 Be2 Ne5 Qbg6 Nd7 Qg7 Rg1 h1R Ra7 h2 Rg2 Rg1 Nh7 h1R Ndf8 Rh4 Qd1 Rg4 Rgh2 Rgg6 R6h3 Bf2 Qd3+ Ka4 Rcc7 R6g3 Qg6 b3 Qac6 b2 Qf5 Ree8 Be3 Kb3 Rg2 Ba2 Rgh2 b1N Rc8 Nbd2 Bf4 Ree3 Qa8 Bb1 Re8 R3g2 Re5 Bh4 Qc8 Qg3 Nf6 Qf2 Rf5 Rg7 N6h7 R1g6 Rh5 Bg3 Rg5 Qa2 Kc5 Qg1 Qg2 Qb2 Qa8 Qc2+
5bb1/QN1b4/pq5b/R1qn4/2Rq1Rr1/1N3br1/K2nk1bQ/1Bq2R2 w - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 h4 b5 f4 exf4 h5 bxa4 h6 gxh6 b5 h5 b6 h4 b7 Bxb7 Bb2 a3 Bc3 Bc8 Bb4 Bh6 Bf8 Bxf8 Kd2 Ke7 Kc1 Kf6 e4 Kg5 g4 h5 c4 d5 e5 f5 e6 a6 c5 d3 e7 h3 e8Q f3 c6 Kf4 g5 d4 c7 f2 g6 d2+ Kc2 h2 Kb3 h4 g7 h3 Bb5 f1Q Qc1 a2 Qb2 d1Q+ Qc2 d3 Ba4 d2 Qe6 Nc6 Nc3 Rh4 Rb1 a1B Na2 Qh5 Qe7 d1Q Qf7 Ke3 Qe6+ Ne5 Bc6 f4 Qd5 f3 Ne2 f2 Be8 Bd7 c8R Nf3 Rc6 Nf6 g8R Qd4 Qdc5 Nd5 Rg4 Qc1 Bf7 f1B Nf4 Bg2 Rf1 h1B Bg6 h2 Qa7 Bh6 Rg5 Rg4 Nd3 Bb2 Rc5 Ba3 Rc4 Baf8 Nc5 Rb8+ Nb7 Q8b6+ Nb4 Rc8 Ka2 Nd2 Rf4 Ke2 Nc6 Re8 Rgf5 Re3 Nca5 Reg3 Nb3 Bf3 Rg5 Bhg2 Qb2 h1B Bh7 Ne7 Ra5 Qhc5 Ra1 Bd5 Bb1 Bg8 Qc2 Nd5 Qh7 Bg5 Qh2 Bgh6 Bh7 Qcc3 Raf1 Qc1 Bg6 Qbb5 Bb1 Qbb6 Qh5 Bf3 Qh2+ Bhg2
b1nK4/p1B2p2/Qn1b2Rr/1Nnqr3/q4pR1/5n2/2Br2R1/kq4RQ w - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 h4 b5 f4 exf4 a5 g5 Nc3 gxh4 Na4 bxa4 a6 a3 Be3 Bxb4+ Bd2 Bf8 Bc1 a2 Be3 Nxa6 Bc1 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf3 Ke5 g4 h5 c4 h3 e4 d3 c5 Kd4 g5 Kc3 g6 h4 e5 h2 e6 h3 Kg4 d4 Kf5 d2 g7 d3 c6 Nd7 e7 Nb6+ Kg5 Bb7 c7 Qd5+ Kg4 Rh6 e8R Ne7 g8R Nec8 Re4 Bd6 Ba3 Bc6 Bb4+ Kb2 Rg6 Bb7 Qf3 d1Q Re2+ d2 Ba5 Qa4 Rg2 Rb8 Qd1 Ba8 Nf3 Rb7 Rhg1 h1N Bc4 h2 Bb3 Ng3 Nd4 h1Q Nb5 Ne4 Bc2 Nc5 Qf1 d1R Qf3 Qde4 Kg5 Rd2 Kf6 Qd5 Rg4 Rb8 R1g2 Qg1 Rd1 a1N Rc1 Qh1 Rcg1 Nab3 Qh3 Nd4 Qh2 Ne7 c8Q Nf3 Qa6 Re8 Qh3 Nec8 Qh4 Nc4 Bc7 Re5 Qe1 Qh5 Qh4 N4b6 Qh1 Qf5+ Kg7 Ne7 Kf8 Ka2 Ke8 Nec8+ Kd8 Qfd3 Bd1 Qb1 Bc2 Ka1
2qN1rn1/b1Q5/rRr3R1/1R1n1r1R/2r2BbQ/2Q1r3/1K1bk1rq/1q6 w - - 0 1 legal: proof: h4 b5 b4 e5 a4 g5 f4 exf4 d4 gxh4 d5 a5 e3 axb4 Na3 bxa3 a5 c6 Bc4 cxd5 Bb3 d4 Ba4 bxa4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 g4+ Ke4 c5 f5 c6 d5 g5 h5 a6 d3+ Kb1 d2 g6 Kd3 a7 h3 g7 a2+ Kb2 a3+ Kb3 f3 c7 d4 e4 h2 e5 f4 e6 h4 e7 f2 e8R f1Q Rb1 a1B Rb2 f3 Re5 h3 Re1 f2 Re7 a2 Re5 Bg4 c8Q Nc6 Qb8 Nb4 Ka3 Bc5 Rd5 Qc8 Qc7 Rh6 Rc2 Rc6 Rg5 Bc3 Qb7 a1R+ Kb3 Nd5 Qb4 Raa6 Qe1 d1R Qe6 Re1 Qe5 Re3 Ra2 Bd2 Nf3 Ke2+ Qc3 d3 Qc7 Qe1 Rc2 f1R Ne5 Rf5 Nf7 Bd4 Rh5 Qf2 Rg1 h1Q Kb2 h2 Nd8 Qe4 Rg3 h1R Rf3 Qh2 Rfh3 Nge7 g8R Rg1 Rg6 Rg2 Rhg5 Ng8 Rhh5 Rc4 Rb6 Rb8 a8Q Bc5 Rb5 Ba7 Rg6 Rbb6 Qab8 Rbf6 Qf4 Rf8 Qbc7 Rcc6 Kb1 Qb4+ Rb2 Qb3 Qa4 Qc2+ Ka2 Qb1+ Ka3 Rc4 Rbb6 Rc6 R2b5 Be1 Qaa5 Ree5 Qb3 d2 Qg3 d1R Qh4 Rd4 Bd2 Rdc4 Bf4 Qc1+ Kb3 Bd2 Qc3 Qd1+ Kb2 Re3 Qf7 Qe1 Qc7 Qb1+
1nr1rQ1R/3QQqn1/1p4N1/1rbN4/b2K2B1/2N5/nqb3Nn/1b1b3k w - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 h4 cxd4 f4 g5 f5 gxh4 f6 e5 Bf4 exf4 Ra3 b3 Qd2 Nxf6 Qd3 b2 Qd1 Ng8 Rg3 Nf6 Rg8 Nxg8 Kf2 Ke7 c4 Kd6 e4 Ke5 g4 f5 g5 d5 a5 h5 c5 d3 g6 f3 Ke3 d2 a6 f2 a7 d4+ Kd3 Kf4 e5 Kg3 c6 f4 e6 h3 c7 f3 e7 h4 e8Q b6 g7 h2 Qde1 d1B Ke4 d3 Ke5 d2 Qe2 h3 Qd7 Nf6 g8N Bc5 Qe8 Bd7 c8N B7a4 Qd3 Nh5 Qa6 Qf6+ Ke4 Ng7 Bg2 f1Q Qe6 f2 Nc3 b1B+ Kd5 Qe2 Qe7 f1N Qe6 Qf7 Nge7 Re8 Qb7 Qb5 Nf3 Qb2 Nh4 Kf2 Rg1 h1B Neg6 h2 Bf3 Bg2 Qc6 h1R Qd7 Nh2 Nce7 Bh3 Kc4 Bhf5 Bg4 Bfc2 Ned5 Rc8 Rg3 Re1 Re3 Kg1 Rh3 Re5 Ng2 Kh1 Rh8 Bf2+ Nc7 Rb5 Qe7 Re8 N7d5 Bc5 Q6d6 Nc6 Qdd7 Rac8 a8Q Nb8 Qaa7 Bf3 Qf8 d1N Ne2 Nc3 Qde7 Qf5 Qad7 Na2 Nec3 Qf7 Ne5 Bfd1 Ng6 Bd6+ Kd4 Bc5+
5RB1/3Np3/Rr1R3r/3b2n1/rR1K2QQ/1r1q4/1pk2n1n/b1bn1rQ1 w - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 h4 cxd4 e4 g5 e5 gxh4 e6 b3 Qd2 fxe6 Nf3 b2 Qd1 e5 Bh6 Bxh6 Ng1 e4 Nc3 Bg7 Nd5 Bf8 Nf6+ Kf7 Ne8 Kxe8 Ke2 Kf7 g4 Kg6 c4 b1R f4 d5 g5 Kf5 c5 h5 g6 b5 a5 b4 a6 e3 Kd3 b3 g7 e2 a7 e1B c6 h3 c7 h2 Nf3 h4 Bg2 h3 Ng5 Nh6 g8R Nc6 Qc2 Bd2 Qb2 Bg7 Ne6 Bc1 Nf8 Nf7 Qa2 Bb7 c8R Nce5+ Ke2 d3+ Kf2 d2 Ke3 d1N+ Kd4 Rh6 Re1 h1R Rc4 h2 Qb2 Nf2 Ra6 Rb6 Bf1 Ng5 Qe2 Rb2 Bg2 Rf1 Rd1 h1R Rb4 Rhh6 Nd7 Bf6 Rf8 Neg4+ Kc5 d4 Bd5 d3 Bg8 Nh2 Qg4+ Kg6 Qh4 Kf5 Kc4 Ke4 f5+ Ke3 Kc5 Bc3 f6 d2 f7 Kd3 Qg4 Kc2 Kc4 Rb8 a8Q Ra2 Qa7 Ba1 Kc5 b2 Kd4 Ra4 Qh4 Rbf6 Qb6 Be4 Qe6 Bc6 Qeg4 Bd5 Ke5 Rh1 Nb6 Be4 Rd4 Rb7 Re8 Bf3 f8Q Nfh3 Qf7 Qd7 Rf8 Rf1 Qg1 Be4 Qe6 Nf2 Qeg4 Rf3 Rb4 Rb3 Q4g2 Qh3 Nd7 Rbb6 Qgg4 Bg2 Re1 d1N Kd4 Bd5 Re6 Qg3 Rd6 Qd3+
Q2N3R/1q1p1n2/1K3bN1/5pp1/1k1r1rp1/nbb3Q1/qN3n1N/Q1B4b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Ba3 d5 Bc1 d4 a4 hxg4 Ra2 b5 Ra3 bxa3 e3 b4 Be2 Qc7 Bc4 Qd8 Ba2 b3 Ke2 bxa2 Kd2 Qe7 Ke1 Qd8 Ke2 Ke7 Kd3 Kd6 Kc4 a1Q Qd3 f5 e4 g5 Kb5 a2 c4 f3 Nc3 f2 h4 f1N a5 Nc6 a6 Nd2 a7 Qc7 h5 Rh6 Qg3+ Ne5 Nd1 d3 Nf3 Be7 Rh4 Rf6 h6 Bb7 h7 Nh6 h8Q Nb1 Nh2 d2 Qg7 Rb8 a8Q Nf7 Rh8 Qc8 Ka5 Na3 c5+ Kc6 Qh4 Qb2 Qg3 Nd3 e5 Rd6 e6 a1B Qd4 Bf6 e7 Qb1 e8N Nf2 Nc7 Qa2 Ne6 Bb2 Qdc3 Kd5 Qce5+ Kc4 Nd8 Bh1 c6 Rb4 c7 Qb7 c8N Rd3 Ne7 Kb3 Ng8 Rf4 Ne7 Bd4 Ng6 Ba1 Nc3 d1B Na4 Kc4 Qb2 Bb3 Qb1 Rdd4 Qb2 Qc8 Kb6 Kb4 Qb1 Bb2 Qa1 Bc3 Nb2 Qb7+
r2nRbN1/n6k/3rp1Nq/3p1Bp1/K4b2/1N2n1r1/7N/2nbNrRR w - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 g4 cxd4 e4 h5 e5 hxg4 e6 b3 Bc4 fxe6 Bd2 e5 Ba5 e4 Ba6 Qxa5+ Qd2 b2 Bf1 Qd8 Qf4 Nc6 Qb8 Nxb8 Kd1 Kf7 f4 Kg6 h4 b5 c4 d5 Kc2 g3 Kb3 e3 c5 b4 a5 g2 c6 d3 h5+ Kh7 c7 g5 f5 e2 f6 e1N a6 d2 a7 d1N f7 Nh6 Na3 b1R+ Ka4 b3 Rh2 b2 Nf3 g1B Rh1 Bg4 c8N e6 Nh2 Nc6 Bh3 Qf6 Nc2 Nd3 Ne7 Ne3 Ne1 Nc1 Ng8 Rd8 a8N Rd6 Nc7 Na7 Na6 Bf3 Nc5 Bd1+ Nb3 Qg7 Nf1 Bh2 Bf5+ Qg6 Rg1 Be5 Nh2 Bf4 Ra3 Ra1 Ra2 b1R Rh1 Bg7 f8R Nf7 h6 Nd8 Re8 Rb2 Ra3 Rg2 Ra2 Rb1 Rd2 Rg4 Rg2 Bf8 Rgg1 Rg3 Bh3 Qg7 Bg4 Kg6 h7 Qh6 Bf5+ Kg7 Ne7 Rg8 h8N Ra1+ Kb4 Rb1 Nhg6 Kh7 Ka5 Rb2 Ka4 Rf2 Nef3 Rf1 Ne1 Rg7 Ng8 Rc7 Rg2 Rc8 Rgg1 Ra8
rn3rbR/5R2/1rq4q/2N1k3/rQrR1pRb/1rQR2n1/1nN3n1/5K2 w - - 0 1 legal: proof: h4 a5 f4 c5 d4 cxd4 a4 e5 b4 exf4 e3 axb4 a5 g5 a6 gxh4 Ra4 b3 Ba3 Bxa3 Bb5 Bf8 Bc6 Nxc6 Ra1 Nb8 c4 Ke7 g4 Kd6 e4 f5 c5+ Ke5 g5 h5 g6 b5 c6 d5 a7 b4 c7 h3 g7 f3 Kf2 f4 Qc2 b2 Ra6 h4 Ra1 h2 Ra4 d3 Nd2 b1R Ra6 d4 Qa2 h3 Qa1 b3 Rf6 b2 Qa4 Qd7 Qa2 Ne7 g8Q Nd5 Rh6 Ne3 Qgf7 Be7 Qa6 Rf8 Nb3 d2 Rh7 d1R Qb7 d3 Nc5 d2 Ne2 Ng2 Qb4 Rdc1 Qfc4 d1N+ Kf1 f2 Rf7 Qc6 Nd4 Bh4 Qcc3 Be6 Rg1 h1Q c8R h2 Rd8 Ra1 Rdd7 b1R Rd6 Rc2 Rdd7 Rb3 Rd6 Rd2 Nc2+ Rd4 Rdd7 Ra4 Rd8 Nb2 Rd6 Na6 Rdd7 Rab8 a8R Rb6 Rad8 Nb8 Qf3 Rc4 Rd3 Bf5 R8d4 Bh7 Qg3 Bg8 Qe3 Qh6 Qed2 Ne1 Qdc3 Qf3 Rgg7 h1N Rg4 Ng2 Ra7 Kf6 e5+ Kf5 e6 Qc6 Rf7+ Ke5 e7 Ra8 Ke2 f1R e8R+ Be7 Rgg7 Rfa1 Rg4 R1a4 Red8 Bh4 Kf1 Qh8 R8d6 Qg7 Rh6 Qgg6 Rhh7 Qh6 Rh8 Ng3+
2q3r1/3qk2b/2Q3RQ/1qp1nq2/nQ2B3/1r2KQb1/r3pQr1/1R1Qb3 w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 f5 a4 g5 e4 fxe4 g4 d5 f5 dxc4 Na3 bxa3 Bb2 Ra7 Be5 Ra8 Bf4 gxf4 Nf3 h6 g5 h5 Ne5 Nc6 Ng4 hxg4 Qc1 Nb8 Qb1 Kd7 Qd1 Ke8 Ke2 b5 h4 e5 d4 g3 g6 e3 a5 g2 f6 g1R g7 a2 f7+ Ke7 h5 b4 h6 f3+ Ke1 e2 Kd2 e1B+ Ke3 c3 h7 b3 a6 c2 d5 c1Q+ Ke4 b2 a7 b1R Qc2 f2 Qb3 Na6 Qe3 Nh6 g8Q Bf5+ Kf3 e4+ Ke2 Rg2 Qa3+ Nc5 Qg4 e3 Qf3 Qd7 Rg1 Ng4 Qb4 Rg8 h8Q Ne5 Qh6 Rb3 Rb1 a1Q d6+ Kd8 Qa3 Bh7 Qb4 Na4 Qc6 Qf5 d7 Bd6 Qf3 Ke7 Qc6 Raf8 a8Q Qd4 Qf3 Rd8 Qa6 Ra8 Qac6 Rh2 Rg6 Rg2 Qa6 Qc6 Qab6 Qb7 Qa6 c5 Qac6 Rg1 Bg2 Qc8 Qg4 Qd5 Be4 Rg2 Qf3 Qde6 Kd1 f1Q Qf2 Kd8 f8Q+ Qe8 Kc2 Qb5 Kd1 e2+ Kc1 Qe6 Q8f3 Ke7 Kc2 Qf5 d8Q+ Kf7 Kc1 Bc7 Qdd2 Ke7 Qd1 Qed7 Q2e3 Bg3 Qef2 Bd6 Kd2 Bc7+ Bd3 Ba5 Ke3 Ra6 Qbe4 Be1 Qb4 Nc3 Bc2 Ra2 Be4 Na4+
1Rr1Bq2/4nb2/1NQ3b1/1P2NqK1/N5n1/1k2rrqR/1br1r3/2q2nB1 w - - 0 1 legal: proof: f4 b5 c4 c5 a4 bxa4 d4 cxd4 e4 e5 h4 exf4 c5 d5 c6 dxe4 c7 g5 Kf2 gxh4 Ke1 Bb7 c8Q Ba6 Qcc2 Bc8 Qc3 dxc3 Kf2 Ke7 b4 Ke6 g4 h5 b5 f5 g5 a5 g6 e3+ Kf3 c2 g7 e2 Qd3 e1R Qe2+ Kd5 Qe3 a3 Qe8 h3 Rh2 h4 Qe7 a2 Nd2 a4 Qe2 a3 Qg2 Nf6 g8N Re3+ Kf2+ f3 Qg4 f4 Rg2 h2 Qg6 h1Q Nb1 h3 Qh6 h2 Bb2 c1R Nd2 Bg7 Nb1 Be6 Nh3 Nc6 Ng1 Qf8 Bd4 Ne7 Ne2 Kc4 Rg3 Bf7 Be5 Re8 Bb2 Rc2 Be5 Kb3 Bh3 Qc1 Bd6 h1B Bd7 Rec8 Qg6 Rh3 Nc3 Bg2 Bc7 Bf1 Nh6 Ng4+ Kg1 Bd4 Na4 Bb2 Be8 Rh2 Nec3 Rhe2 Nd5 f2+ Kh1 f3 Qc6 Qe1 Rd1 a1Q Bb6 a2 Rh3 Qb1 Rd4 Bg6 Nf7 a1Q Ne5 Qa3 Ba7 Qec1 Ndb6 Bf7 Rd8 Qd6 Ng6 Qg3 Ne5 Rc5 Rd7 Qf5 Rb7 Rcc2 Rb8 Qd2 Rh7 Bh3 Rh8 f1N Rh4 Bg2+ Kg1 Qd1 Rh3 Qc1 Qc5 Bg6 Nd5 Rd3 Qd6 Rdc3 Bf2 Rce3 Ndb6 Nfh2+ Be1 Red2 Qc6 Bf1+ Kh1 Rg2 Bf2 Bc4+ Bg1 Rge2 Na8 f2 N8b6 Qgf4 Kg2 Bcf7 Rg3 f1R+ Kh3 Rff3 Kh4 Nf1 Rh3 Qh2 Qd7 Qe6 Qc6 Qg3+ Kg5 Qf5#
3n4/2R1BkPp/n5q1/4B1pB/1r1pb3/1R3rQ1/1q4pn/nK1nN1R1 w - - 0 1 illegal: No possible last move
q3b1B1/1k1B2rq/2nP1q1p/2BK1Rr1/N3npR1/1b2Q2R/4q3/b1q2b2 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 e5 c4 exf4 h5 dxc4 a5 b3 h6 gxh6 a6 b2 Nc3 h5 Ra3 Rxa6 Nd5 h4 Ra1 Ra8 Nb6 Be6 Nc8 Bxc8 Kf2 Kd7 Kf3 Kc6 Ke4 b1B+ d3 b5 g4 f5+ Ke5 f3 e4 f4 d4 c3 g5 h3 d5+ Kb7 d6 c5 g6 c2 g7 b4 Qd4 b3 Qd2 h6 Qe2 c4 Qf2 b2 Kd5 h2 e5 c3 e6 Ra7 e7 Ba2+ Kc5 b1Q e8R Qf6 Qe3 f2 Bd2 c1Q Ne2 c2 Qa3 Nc6 Qd3 Qcb2 Qd4 c1Q+ Qc3 Qh7 Bh3 f1B Re5 Bb3 Rf5 Bd7 Be3 Be8 Rg1 h1Q Rg4 Qg2 Ra3 Qba1 Ng3 Qe2 Ne4 Qh4 Bd4 Nf6 g8B Bg7 Be3 Qcd1 Qd4 Qdc1+ Nc3 Qg5 Bf2 Qgg6 Qe3 Qaa2 Bc4 Ne4+ Kd5 Rg8 Na4 Qf6 Qc3 Qec2 Rh5 Qhg6 Rg2 Ka8 Bc5 Qe2 Nb2 Ba4 Bg4 Rf7 Bd7 Qh4 Rf5 Qh7 Ke6 Kb7 Rg4 Qaa1 Qf3 Bf6 Rc3 Bb3 Qf2 Qa5 Rh3 Qa8 Na4 Ba1 Qe3 Qhd8 Bd5 Rg5 Bc4 Nd4+ Ke5 Rfg7 Bf7 Bd1 Bg8 Nc6+ Ke6 Qf6+ Kd5 Bb3+
b4r2/RnqR2b1/1RNN2b1/1pq4Q/1n1N1r1q/3B3b/4pP1k/1K1rr3 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ba3 b4 Ke1 bxa3 Kd2 Kf7 Kc1 Ke6 g4 d5 c4 h5 c5 b5 c6 h3 c7 h2 g5 Kf5 g6 e5 g7 e3 a5 h4 a6 a2 a7 e4 Ne2 Kg4 Qe1 h3 Nf4 d3 Ne6 d2+ Kc2 d1R Ng5 d4 Ne6 d3+ Kb2 d2 Bd3 Na6 Rf1 h1B Bc4 h2 Rg1+ Kh3 Rg6 Rh4 Rg2 Ne7 g8N Bg7+ Nf6 Nd5 Qg1 Nc5 Na3 Nb4 Bd3 Rb8 a8Q Rf4 Rg4 Bd7 c8R Qc7 Qe1 Bg2 Nc2 h1Q Rg6 Bc6 Qa7 Ba8 Nd8 Nb7 Rb1 a1Q+ Kb3 Qd4 Ra1 Bf1 Qa4 Qdc5 Kb2 Qh2 Ra3 Qg3 Qe2 Kh2 Rh6+ Qh4 Qh5 Bh3 Rg6 e2 Ra2 e1R Nd4 e3 Ne4 e2 Rb6 Rf1 Nc6 Rfe1 Rd8 Rc8 Rd7 Rcf8 Qf5 Rc1 Qd1 Rc2+ Ka1 Rb2 Ra7 Ra2+ Kb1 Rc2 Qc1 d1B Bc4 Ra2 Nd6 Rd2 Qh5 Ba4 Qd1 Bc2+ Ka1 Be4 Bd3 Bg6 Kb1 Rdxd1+
nn2B3/2RrR3/1nB3b1/nNQr1BPq/R2ppp2/r1bk4/6b1/K5n1 w - - 0 1 illegal: No possible last move
2q2n1k/1Qq1rnnB/1N5Q/K1BN1P2/1R2bbq1/1q3p2/3N3q/4q1n1 w - - 0 1 legal: proof: f4 g5 b4 c5 d4 cxd4 e4 a5 a4 axb4 h4 gxh4 f5 e5 a5 b5 a6 b3 a7 b2 Qd2 f6 Qf4 exf4 e5 fxe5 Ra3 Na6 Rah3 Rb8 a8Q e4 Rf3 exf3 Qe4+ Kf7 Qd3 Ke8 Qd2 Rb6 Qd1 Re6+ Kf2 Re1 Kxe1 Nb8 Kd2 Kf7 g4 Kg7 c4 d5 g5 h5 c5 b4 c6 h3 c7 h4 g6 d3 Qc2 b3 Kc3 d4+ Kc4 f2 Kb5 d2 Ka5 d1Q Nf3 d3 Ka4 h2 Na3 b1N Ka5 h3 Rg1 h1Q Nb5 d2 Nh2 b2 Na7 Nh6 Bg2 f1Q Nc6 Nd7 Nf3 h2 Bh3 Bb7 Qe4 Rh7 Nh4 Kh8 Qe7 Qa6+ Kb4 Qe1 c8N d1Q+ Bd2 Nc3 Be3 Qc7 Nf3 Ne2+ Nd2 Nf7 Bg2 Bh6 Nb6 Nf8 Bd5 b1Q+ Bb3 f3 Rg4 Bf4 Bc5 Ng1 Qh4 Qa8 Ne7 Be4 Qh6 Qac8 Ned5 Qde2 Rh4 Qhg2 Ka5 h1N Bc4 Qg4 g7+ Kg8 Bb3 Qh2 Bc4 Ng3 Bb3 Nh5 Bc4 Nd8 Bb3 Kf7 g8Q+ Ke8 Rh3 Be5 Nf4 Qgh4 Ba4+ Bc6 Qd5 Qb3 Nd3 Re7 Nf4 Ng7 Rg3 Qg5 Rg4 Qgh4 Qe4 Kf7 Bb5 Bb7 Be8+ Kg8 Bg6 Nf7 Bh7+ Kh8 Qec6 Ba6 Qd5 Bd3 Qb7 Qh5 Nd5 Bb1 Rd4 Qg4 Ra4 Bf4 Rb4 Be4
2n2qR1/1QR2br1/1nb2Q1B/1nN2p1n/2k4b/b4r1N/1P5K/Qr2bq2 w - - 0 1 legal: proof: h4 c5 c4 d5 d4 dxc4 a4 cxd4 f4 e5 e3 exf4 h5 b5 h6 bxa4 Qb3 d3 Qd1 c3 Be2 gxh6 Bg4 h5 Be6 h4 Bb3 Nf6 Bc2 dxc2 Qd5 Ng8 Qh5 Kd7 Qd1+ Ke8 Kf1 Ke7 g4 Ke6 Kg2 a5 g5 h5 g6 f5 e4 f3+ Kh2 a3 e5 a2 g7 a4 Bd2 Kd5 e6 c1B e7 a3 e8Q h3 Kg3 c2 Ne2 h2 Bb4+ Bd2 Qc1 f2 Re1 h1N+ Kh2 h4 Kh3 Nd7 Kg2 h3+ Kh2 Rh7 Qe3 Ne7 Qa7 Nb6 g8Q+ Be6 Qg5 Nec8 Be7 Ng3 Qh5 Bf7 Rg1 f1Q Rh1 Be1 Qf4 c1B Qhh6 Nh5 Qfb8 Bg5 Qa4 Bgh4 Bg5 Bfb4 Ng1 Qf8 Nd2 Kd4 Rb1 a1R Ne4 a2 Rc1 Rb1 Rc7 a1N Qhc6 Nc2 Qbb7 Na3 Nc5 Kc4 Bh6 Nb5 Qa1 Ra3 Qf6 Re3 Nf3 Ba3 Ng5 Rg3 Rg1 Rd3 Kh1 h2 Nh3 Rf3 Rc6 Qd3 Rg8 Rg7 Qg5 Re3 Kg2 h1B+ Kh2 Qf1 Rc7 Bc6 Qf6 Rf3
bB1k1N1b/1pr3P1/2q4B/1qQqN1qr/4Kn2/5n1B/r2p3Q/1R2nq2 w - - 0 1 illegal: Other
2n4b/2nRp1N1/2BPN3/r1Rb2pB/r1R1p3/2bk1r2/rn4Nn/1K5q w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 dxc4 e4 h5 e5 hxg4 e6 b3 Nc3 fxe6 Ba3 b2 Qf3 e5 Qd3 Qxd3 Bc5 e4 Nb1 Qd8 Ba7 Nc6 Bb8 Nxb8 Kd1 Kd7 Kc2 Ke6 d4 Kd5 h4 b5 f4 c5 h5 g5 f5 g3 a5 g2 h6 b4 f6 b3+ Kc3 Bb7 h7 Nd7 f7 Bg7 f8N Nb6 a6 Nf6 a7 Ne8 Rh6 Nc7 Rh2 Nc8 Na3 b1R Bd3 b2 Kc2 c3 Ng6 c4 Rh4 Rf8 h8R Rf3 Nh3 g1N Rf8 Bh8 Rh6 Rbf1 Be2 b1R Rf6 Rb5 Rc6 R1f2 Rc1 Ra5 Nh4 Rh2 Kb1 c2+ Ka1 c3 Rc4 Qg8 Nf5 Qh7 Ng7 Ra4 Rd1 c1N Rhc6 Nd3 Kb1 Nb2 Nc2 Qh4 Ne1 c2+ Kc1 Ra5 Ng2 Qe1 Nf2 Ra4 Nd3 Qh4 Nc5 Qh7 Kd2 c1B+ Kc2 Bd2 Kb1 Bc3 Nce6 Qh6 Nh4 Rhf2 Ng2 Qh1 Rd2 Rf5 Bh5 Nf3+ Rd1 Nh2 R6c5+ Kd6 d5 Ke5 Re1 R2f3 d6+ Bd5 Rc1 Rb8 a8B Rb5 Re1 Rba5 Bc6 Rf2 Rc1 R5f3 Rb4 Rd2 Rb7 Rdf2 Nd8 Kd4 Nde6+ Kd3 Ra7 Na6 Rd7 Nc7 Rc4 Nd1 Rc5 Rfa2 Rc4 Nb2 Rc5 Be1 R1c4 Bc3+
NrrbN1nq/p2K4/r2RQ3/3n1Nb1/R1N1p1p1/3P2p1/bp6/B1k5 w - - 0 1 legal: proof: e4 b5 g4 h5 e5 hxg4 e6 d5 Bd3 d4 Bf1 d3 cxd3 fxe6 Na3 e5 Nb1 e4 a4 bxa4 b3 axb3 Bg2 c5 Bf1 c4 Na3 c3 Nb1 Qd4 Ke2 Qc4 Ke3 Qa6 Kd4 cxd2 Be2 Qh6 Bf1 Qh3 Kc3 Qxf1 Kc4 Kf7 Kc5 Ke6 f4 Kf5 h4 g5 h5 e3 h6 e2 h7 e1B Ra4 g3 Bb2 g4 Qe2 d1R Ba1 Ba5 Nf3 Be6 Na3 Na6+ Kc6 Qh3 Nc4 Nc7 Qe1 Bd5+ Kd7 e5 Rf1 Rc8 Nh4+ Kf6 f5 Kg5 f6 Be7 Rh1 Kf4 f7 Bg5 f8N b2 Qe2 Rc1 Nf5 Bf7 Qe1 Nd5 Ne6+ Kf3 Rh2 Bad8 Nc7 Rc3 Na8 Ra3 Rh1 Qh6 Rh5 Qf8 Rh6 e4 Qg1 Ke2 Rd6 Qg7 Qb6 Kd1 Qa6 Kc1 Qb6 Nge7 Qb3 Rf8 h8N Bg8 Nf7 Qh8 Rh6 Ra2 N7d6 Bf7 Ne8 Ng8 Rd6 Rb8 Rb4 Ra6 Ra4 Ba5 Nec7 Rfc8 Ne8 Bad8 Qb6 Nc7 Na5 Bb3 Nc4 Ba2 Qc6 Qh6 Qd5 Qh8 Qe6 Nd5
nb1B4/6b1/k5Np/rb1n4/b1P2Q2/1r1qNq2/2bqN1Rr/KBN1b3 w - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 a4 bxa4 f4 e5 f5 g5 b5 gxh4 b6 a5 b7 a3 Ra2 a4 Rb2 a2 f6 Qxf6 Rb3 a3 Rf3 Qb6 Rf4 exf4 Kf2 Qd8 Ke1 Na6 b8N Nxb8 Kd2 a1B e4 d5 g4 Kd7 c4 Kc7 Kc2 Kb6 e5 f5 e6 a2 g5 d3+ Kb3 h6 e7 d4 e8N h3 g6 f3 g7 f2 Bg2 f1Q Qf3 h2 Bb2 f4 Nd2 Ra5 Ba3 Nf6 g8N Bb4 Nb1 d2 Qe3 f3 Kc2 d1B+ Kc1 f2 Nd2 Nd5 Qe5 d3 Qe3+ Ka6 Qc5 Be5 Qd4 a1B Kb1 Ba4+ Bc1 Bcd7 Nef6 Bdb5 Ngf3 Nd7 Ng1 N7b6 Qf4 Bb8 Nb3 d2 Ne7 d1B Ne2 Na8 Be4 Be1 Ng4 Bg7 Rg1 h1R Rg2 Rh2 Ne3 Bc2+ Ka2 Qh1 Ng6 f1Q Bd2 Qf3 Nbc1 Qhf1 Bc3 Re8 Ka1 Re6 Bf6 Rb6 Ng1 Qd3 Nge2 Qd2 Bf5 Bd1 Bb1 Bdc2 Qd4 Qd7 Bd8 Qdf5 Qe5 Qfd3 Qf6 Bd7 Qd4 Rb3 Qe5 Bdb5 Qd4 Rc3 Qf4 Rb3+
N1qB1B1n/Bb1nBn1b/3b3r/1K1RQ1np/1r5k/q3P2n/2q5/1R2q3 w - - 0 1 legal: proof: d4 d5 g4 e5 c4 dxc4 b4 a5 d5 axb4 g5 Qd7 g6 fxg6 Bf4 Qd6 Bc1 Qd8 h4 Ke7 h5 Bg4 h6 Kd7 Qd4 exd4 Bg2 Ke8 Bf3 Bc8 Nd2 Ra7 Bh5 Ra8 Ndf3 gxh5 Nh4 Bf5 Ng6 hxg6 Ba3 Be6 Bc1 Bc8 Kd2 Ke7 a4 Kf6 f4 c5 d6 b5 d7 b3 h7 c3+ Kd3 g5 e3 b4 Kc4 c2 f5 b2 a5 b1Q a6 d3 a7 b3 Ne2 b2 Rd1 d2 Kb5 g4 Ra4 Kg5 f6 c4 f7 g3 Nd4 c3 Ra2 g2 Rh1 d1Q Nb3 g1N Ra3 Bb7 Nd4 Ne7 Rb3 Nf3 Rg1+ Kh4 Kb4 g5 Nc6 g4 Nd4 g3 Ka4 g2 Rb5 Ng6 Nc6 Bd6 f8B Qc8 d8B+ Ng5 Bde7 Qe1 Re5 Nd7 Kb5 Rb8 Bd2 c1N a8Q c2 Nd8 Nd3 Qa5 c1Q Rd5 N3e5 Ne6 Nf7 Nc7 Qbc2 Na8 b1B Bc3 Qa3 Bd4 Nge5 Ba7 Ng6 Rf1 g1N Qc3 Nh3 Qe5 Rg8 Rg1 Ngh8 Rh1 Rg6 Rf1 Re6 Rg1 Ng6 h8B Rf6 Bhg7 Ngh8 Rf1 Rh6 Bgf6 Qca2 Bd8 Bh7 B6e7 Qac2 Rh1 Qef2 Rc1 Qe1 Rb1 Nc5 Nb6 Ra8 Bb8 Ra4 Na8 Nd7 Ba7 Rb4+
1brrqn2/rrN3k1/2Q1p2q/1P2n1Np/2n2R2/6BK/1N3pn1/3N1bR1 w - - 0 1 legal: proof: e4 g5 h4 gxh4 d4 c5 f4 cxd4 a4 e5 c3 dxc3 a5 exf4 e5 b6 e6 bxa5 Ba6 a4 Bc4 Ke7 Bd5 Kd6 e7 Kc5 Ba2 Kc6 Be6 dxe6 Kf1 a5 e8N f5 b4 h5 g4 h3 g5 a3 g6 a4 g7 c2 Kf2 h2 Kg2 f3+ Kh3 f2 Nf6 f1N Bg5 c1Q Nf3 f4 Qc2+ Kd6 Ne1 Ke7 Qc6 Kf7 Nd3 a2 Nb2 f3 Qc4 f2 Qa6 a3 Nd2 Nc6 Bh4 Qe8 Nde4 Ne5 Rb1 a1N Nd3 a2 Qa5 Bd6 Kg2 Bb8 Nh7 Ba6 Bg3 Qh6 Bf4 Nb3 Rg1 h1R Nb2 a1R Bg3 Ne7 g8N Kg7 Qa4 Na5 Qc6 Nac4 Nhg5 N7g6 Ne7 Nf8 Nc3 Bb5 Ncd1 R1a7 Nd5 Ba6 Bh2 Nfe3+ Kh3 Ng2 Nc7 Rb7 Rc1 Raa7 Rc3 Rg8 Rf3 Bb5 Rf4 Rh8 Re1 Rg1 Bg3 Rg8 Ne3 Rh8 Ra1 Rd1 Rb1 Rd8 Rg1 Na3 Ned1 Bf1 b5 Nac4 Na8 Rh7 Qe4 Rc7 Qc6 Rcc8 Nc7 Kh8 Nd5 Rhb7 Nc7 Kg7
8/BqQ1p1b1/1pnn2R1/1BB4k/1N2rnbn/BK2r3/pP3p2/R3b2r w - - 0 1 legal: proof: e4 f5 a4 fxe4 g4 c5 d4 cxd4 f4 h5 c3 dxc3 a5 hxg4 a6 Qa5 Nd2 Qxa6 Ndf3 exf3 Ra5 Qc4 Ra1 Qa2 h4 Kf7 h5 a5 f5 d5 f6 g5 h6 Kg6 f7 g3 h7 a4 Be2 g2 Ba6 a3 Be3 d4 Qc1 c2 Kd2 d3 Kc3 f2 Rh5 b6 Bc5 d2 Rb1 d1R Bd4 g4 Bc5 g3 Qd2 c1B Qc2+ Rd3+ Kb4 Qd5 Rh1 a2 Qc4 Qb7 Rh5 Nf6 Nf3 g1N Ra1 g2 Bb5 Re3 Ne1 Ne8 Nc2 Bg7 f8B Ne2 Rh6+ Kg5 Rc6 g1N Rg6+ Kh5 Bd6 Ra6 Qc7 Nf3 Bc5 Re4+ Kb3 Nd6 Ba3 Nh4 Nb4 Ra4 Rg2 Nf4 Rg6 Rg8 h8B Bd2 Qc2 Be1 Qc7 Bgc3 Bf6 Nc6 B8g7 Bg4 Bd4 Re3 Bc5 Rga8 Be5 Rh8 Na6 Rae4 Nb4 Nc4 Qc8 Rh7 Bb8 Nd6 Ba7 Bg7+ Bd3 Rh3 Qc7 Rh1 Bf1 Rh8 Bb5 Rf8 Na6 Rf6 Nb4 Rfe6 Bd4 R6e5 Bc5 Re2 Bd3 R5e4 Bb5 R2e3+
4N2R/bnN3pN/q2nP3/bNr1b3/1kp3b1/n7/R1b2BKB/2r2qn1 w - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 g4 dxc4 f4 h5 a5 hxg4 Kf2 e5 Na3 exf4 Ke1 b3 Bh3 Rxh3 Nb1 Rh5 Qc2 Rh8 Qh7 Nh6 Qg8 Nxg8 Kf1 Kd7 e4 Kd6 d4 c5 h4 b5 h5 f5 a6 f3 h6 f4 d5 b4 h7 g3 a7 b2 Rh2 c3 Re2 c4 e5+ Kc5 d6 f2 d7 b3 Re3 c2 Ne2 Na6 Ng1 g2+ Ke2 f1N Kf2 f3 Bd2 c1B Nc3 b1N Na2 b2 Be1 Nh6 Ra3 Nf5 Ra4 N1g3 Bc3 Na3 Rb1 Qb6 d8B Ne2 Bd2 Bd6 Bf4 Bd2 Nh3 Ng1 Ng5 Ba5 Bh2 Qc6 Rd1 b1B Nc3 Bc2 Nb5 Bb8 Ra1 Nd6 Ra2 Bg4 e6 Bbc7 Rb4 Rc8 a8N Rf8 Kg3 f2 h8N f1Q Nh7 Rf4 Rb1 Rd4 Rc1 Kb4 Bh4 Nc5 Nf7 Ncb7 Rca1 Bb8 Nac7 Qa6 Re1 Rd2 Re5 Rd1 Rh5 Rc1 Rh6 Nh3 Rh5 g1B Rh6 Qf5 Kg2 Bga7 Bf2 Ng1 Rh5 Bd4 Rh3 Be5 Rh4 Ba7 Rh3 Ne4 Nfd6 Qf8 Nde8 Ned6 Nhf6 Qf7 Rh8 Qf8 Nh7 Qf6 Na8 Rc5 Nac7 Qf5 Nf8 Qd3 Nh7 Qf1+
BqRbqQ2/2n1QN2/n6q/2pb1B2/Kr3n2/nP2Bn2/Q3bn2/3rk3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 b3 a5 Rh3 a3 Rh1 a2 Bb2 axb1B Ra2 a4 Bc1 a3 Rb2 axb2 d4 Kd7 Kd2 Kd6 Kc3 Kd5 g4 Ke4 d5 f5 e3 h5 g5 c5 g6 f3 g7 f4 d6 f2 d7 f3 Bg2 f1N Bh3 f2 Qe2 Nf6 g8Q Bd3 Qf7 b1N+ Kb2 Nd5 Qg8 Nh2 Qg7 f1Q Qh6 Qf4 Qf1 Na6 Qg2+ Nf3 Qg8 c3+ Ka2 c2 Kb2 Bb7 Be6 h3 Qhg7 h2 Q7f7 h4 Bh3 Rb8 Qg4 Ndc7 Bf1 h3 Bg2 Qe8 d8Q Be2 Qde7+ Kd3 e4 Na3 e5 Bd5 e6 Rb5 Be3 c1N Qgh4 Bh6 Qff8 Bg5 Qg4 Qd6 Qa4 Qb6 Qa5 Qbb8 Qa4 Rh4 Qa5 Rd4 Qa4 Nd2 Nf3 Bh4 Rd1 h1Q Ng5 h2 Nf7 Bg5 Rg1 Nf3 Bh3 Bh4 Rg8 Bg5 Bf2 Kd2 Be3+ Kd1 Bf5 Nd3+ Ka2 Nf4 Kb2 Nc2 Qa2 Ke1 Rh8 Rd1 Rg8 Ncb4 Ka3 Nc2+ Ka4 Na3 Qf6 Qg1 e7 h1N Qe6 Qh2 Qf6 Qec8 e8B Nf2 Q6e7 Qh6 Bc6 Qe8 Ba8 Bf6 Rg6 Bh4 Rd6 Bf6 Rd8 Bg5 Rc8 Bh4 Qd6 Bd8 Qde7 Rb4+
b1N3Qr/q3r3/1Q5N/1R2p2K/Rpn3P1/n1q4b/Nr1Q1b2/4r2k w - - 0 1 legal: proof: e4 a5 b4 axb4 d4 c5 a4 bxa3 h4 g5 c4 gxh4 Bh6 cxd4 Bg7 d5 cxd5 f5 exf5 Bxg7 Rh2 a2 Rh1 Bf8 Bb5+ Kf7 Be8+ Kxe8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 d6 h5+ Kg5 b5 g3 e5+ f6 d3 f5 b4 d7 d2 Rh3 Ne7 f7 Qa5 d8N Nbc6 f6 Nd4 Qf1 d1R Rh1 h3 Nc6 h2 Qa6 h4 Nd8 h3 Qb6 Nd5 Ne2 Kf3 Na3 Kg2 Rc1 a1Q Nc4 Bc5 f8Q Re1 f7 Ne3 Qfd6 Qc3 f8Q Ra7 Nf7 Ndc2 Qg8 Re7 Nh6 Qa7 Kh5 Na3 Qd2 Bf5 Nd6 Nec4 Ra1 Bf2 Nc1 Re2 Rf1 h1B Nc8 h2 Na2 Bh3 Rfc1 Re1 g4 Kg1 Rab1 Ba8 Ra1 h1R Rd1 Rh2 Rdc1 Nd6 Rc2 Kh1 Rcc1 Qe3 Rc5 Ndc4 Rb5 Qc3 Nc1 Nb1 Ra4 Nba3 Na2 Bg1 Qdg5 Rb2 Qd2 Bf2
1kr1R3/2n1r1q1/1B1b4/P1B1bK1n/n2q1b2/3B1QQr/2R3bQ/1b2n3 w - - 0 1 legal: proof: f4 d5 h4 c5 c4 g5 cxd5 gxh4 b4 a5 f5 axb4 f6 exf6 Bb2 f5 Bc1 f4 d4 cxd4 a4 b5 Na3 bxa3 Nf3 b4 Nd2 a2 Nb1 Qc7 Na3 bxa3 Rb1 Qb6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc7 Ke4 h5 g4 f5+ Ke5 h3 e4 h2 g5 f3 a5 f2 g6 d3 g7 d2 Be2 f1B Bg4 f4 Qe1 d1N Bd2 h4 Bc3 h3 Bd7 f3 Qg3 f2 Qe3 Bd6+ Kf5 Rh7 e5 Nf6 g8Q Nh5 e6 Re7 Qeg3 Bg2 Qh7 f1Q+ Kg5 Nb2 Qf2 Qg1 Qe4 Na4 Kf5 Na6 Qc5+ Kb8 Qf2 Nc7 Rc1 a1B Bb4 a2 Bb5 Bae5 Bd3 a1B Bc5 Bf4 Qef3 Bae5 Rc2 Qd7 Q2g3 Qd4 Rg1 h1N Re1 h2 Re4 Nf2 Ree2 h1R Re3 Rg7 Re1 Bf8 d6 Rh3 Re3 Qe7 d7 Rh7 d8B Qg7 Ree2 Bfd6 Re3 Ba6 e7 Bc4 e8Q Ba2 Qh8 Bb1 Ba6 Nd3 Ree2 Bf6 Re8 Bf6e5 Bc4 Ne1 Bd3 Rh6 Qh7 Re6 Qh6 Re7 Qh7 Ra6 Qh6 Rc6 Qh7 Na8 Bdb6+ Rc8 Qh8 Nc7 Qh7 Nf6 Qhh4 Nh5 Qh2 Be3 Q4g3 B3f4
1r4qk/bPq1b1n1/2qq1R2/2BbQ3/Q7/2K1b1R1/bQq2Bnr/6rR w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 g5 b4 e5 f4 h5 a5 e4 Nd2 gxf4 Ngf3 exf3 g5 b6 Nb3 bxa5 Bg2 a4 Bh3 axb3 Bg4 hxg4 Kd2 d5 c4 f5 e4 Kf7 h4 Kg7 c5 a5 b5 g3 e5 a4 e6 b2 e7 b1B e8R d3 g6 a3 c6 g2 b6 g1B c7 f2 b7 f1R h5 a2 Re5 f3 Kc3 d4+ Kd2 f2 Ra5 f4 Rd5 f3 Rd7+ Ne7 Rh4 Nc6 Rh2 Na5 Qb3 Rb8 Rd5 Nf5 Qa3 Be7 Qc5 Be6 c8Q Qc7 Rd6 Bd5 Rc6 Re1 Qc3 f1Q Re6 f2 Re4 Qg2 Rh1 f1Q+ Re2 Qff3 Qb2 Rh7 Qd7 Kh8 h6 Ng7 Qb6 Qf6 Rf2 Qfc6 Re2 Bf2 Ba3 Rg1 Re1 Qgg3 Qb2 Nc4+ Kd1 d2 Bc5 Be3 Rf1 Qgd6 Qf5 Qdd8 Qe5 Qg8 Rh3 B3g5 Rg3 Ne3+ Ke2 Ng2 Rff3 Be3 Rf6 Bbe4 Rb1 a1B Rbf1 Bf3+ Kd3 Ba2 Kc2 d3+ Kc3 d1Q Re1 d2 Rf1 Nf5 Re1 Rf7 h7 Qb1 Rf1 d1Q Re1 Qdd6 Rf1 Kg7 Rd1 Bfd5 h8B+ Kh6 g7+ Kh7 Re6 Rf6 Re1 Rg6 Rf6 Rh1 Rc1 Rh2 Rh1 Qc2+ Kb4 Qdd8 Qe4 Ne1 Qc3 Bd4 Rf7 Rhh6 Rgh3 Be5 Bd6 Rg1 Rg3 Qgf8 Qb3 Bad4 Qa4 Ba7 Bc5 Rh2 Qe2 Qd1 Qb2 Bf4 Kc3 Qfe8 Rf8 Qdd6 Rf7 Ng2 g8Q+ Kh6 Qg4 Qg8 Bd4 Ng7 Qe6+ Kh7 Rf6 Kh8 Bf2 Be3 Qe5 Qc2+
q1b1K1nq/8/1RR5/1bR4Q/1Qqn1rN1/q3P1br/3n1r1p/QNb4k w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Nd2 d5 Nb1 d4 a4 gxh4 Bb2 b5 Ba3 bxa3 e3 b4 Nh3 Nh6 Bc4 Ng8 Ba2 b3 Ng1 bxa2 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 Kh5 Ke4 c4 d5 g4 f5 c5 d3 c6 f3 c7 f2 a5 f1B g5 h3 a6 d2 g6 f4 a7 d4 g7 h2 Qa4 d1R Ne2 Kf3 Qa5 Kg2 Qc3 f3 Qd3 f2 Qb3 d3 Qf7 d2 Nc1 Bb5 Nb3 f1N Qd7 Bd6 Nc5 Bg3 Qe8 Nc6 Nd7 Nd4 Nf6 h6 Kg6 h5 Kf7 h4 Qe7 h3 Nd7 Rh4 Nb6 Rf4+ Qf6 Qd5+ Kf8 Qc4 Qf7 Re1 Nc3 d1Q Rb1 a1B Nbd5 a2 Nf6 Nd2 Qh5 Qf3 Rb3 Rb8 a8Q Re2 Nb1 Bb2 Rc1 a1Q Qa4 h1Q Qb4 Rb6 Rcc3 Rc6 Ke8 Bc1 Ng4 Qa3 Rb2 Rf2 Rbb3 Bf5 c8R Rh6+ Rc6 Bc8 Rc2 Qh2 Rbb2 Kh1 Rc3 Ne7 g8Q Qfg2 Qg7 Ng8 Kd8 Qf3 Rc5 Qfa8 Qh8 Rc6 Ke8 Rh6+ Rc6 Qg2 Qg7 h2 Qa7 Qh3 Qaa4 Qab3 Qa1 Qba3 Rbb3 Qh4 Rc2 Qf6 Rbb2 Qh8 Rb3 Qd3 Rc5 Qc4 Qd5+ N2f3 Qbc3 Bba6 Rbb6 Bb5 Qb4 Rh3 Qh5 Nd2
K1Rn2r1/qRb5/qN2k2q/n4Rqq/1Qb1p1q1/3Q1Pr1/N1Q2r2/r7 w - - 0 1 illegal: No possible last move
4b1Kb/P2pqNnn/2r2b2/k7/2Qq1pRQ/r2N1Rp1/1N6/1n1R2nn w - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 f4 axb4 g4 h5 f5 hxg4 f6 exf6 a5 f5 Bh6 f4 a6 Nxh6 Bg2 b3 Be4 Ng8 Bh7 Nh6 Bg8 Nxg8 Kf2 g5 c4 f5 h4 b5 e4 g3+ Kf3 g2 c5 d3 h5 b2 c6 g4+ Kf2 b4 h6 b3 c7 f3 Ke3 f2 Kf4 f1N Ke5 d2 h7 f4 Qc2 d1Q Kf5 Qe7 Kg6 Bg7 e5 Qd4 e6 Bb7 c8N Kd8 Qc1 Ng3 Qc4 Bd5 Qc6 Nf6 Qc2 Nc6 Rh4 Kc7 Rh5 Nh1 Na3 b1N Ne2 g1B Rh6 b2 Rh3 Nd2 Nc1 b1N Nc4 Nd8 Nd3 Nf3 N8d6 g3 Nf7 Ra7 Ncb2+ Kb6 Qc4 Re8 h8Q Nh7 Rh6 Bf6 Rh4 Be3 Kh6 Ng1 Rg4 Be4 Ra3 Bg6 Ra1 Rc7 a7 Rc6 Ra3 Bh5 Rc3 Ka5 Rc1 Qec5 e7 Ne6 Rd1 Rec8 e8R Ng7 Re4 Qe7 Re6 Bd2 Re3 Bc3 Rf3 Bg6 Nfe5 Be8 Nf7 Rb8 Kg6 Rb3 Kh6 Ra3 Kg6 Ng5 Qh4 Ne4 Kh7 Ng5+ Kh8 Nh7 Kg8 Nh5 Nde5 Bh8 Ned3 Ng7 Qh3 Qb6 Qh6 Bf6 Qh4 Qd4
1Q4nb/2pbknB1/P7/2bbbr1Q/2r5/NR4Nn/1N2N3/n2qb1K1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Bg4 Qd1 Bc8 a4 gxh4 e3 fxe3 Qb3 b5 Ra3 bxa3 Qc2 b4 Qc5 Bh3 Bc4 Bc8 Ba2 b3 Qc2 bxa2 Qb3 Bc5 Qd1 Bf8 Kf1 a1B d4 h5 g4 f5 g5 h3 d6 f4 a5 h4 d5 h2 g6 a2 g7 h3 a6 e2+ Kf2 e1B+ Kf1 f3 d7+ Ke7 Qa4 f2 Bh6 Nc6 Ne2 Be5 Rg1 h1N Qa5 a1B Rg3 h2 Rb3 Rh7 Kg2 f1N Na3 Nd2 Qb5 Nf2 d6+ Kf7 Ng3 h1B+ Kg1 Bd5 Qe2 Kf6 Qh5 Rb8 Ne2 Rb4 Ng3 Rc4 Ne2 Qe8 d8N Bd7 Ne6 Nd8 Nc5 Nf7 Na4 Qd8 Nb2 Be7 Be3 Rh6 Bd4 Ke6 Ng3 Rf6 Ne2 Rf5 Ng3 Be8 d7 Bc5 Bc3 Ke7 Bd4 Qa8 d8N Bd7 Ne6 Qf8 Nf4 Qd8 Rf3 Nb3 Nfe2 Ngh6 g8Q Bh8 Qgg6 Ng8 Qb6 Be5 Qb8 Bh8 Na4 Bb2 Bg7 Be5 Nb2 Na1 Qb6 Qb8 Qa7 Qb3 Qb8 Qd1 Rb3 Nh3+
4KQ2/3r1nn1/Qr2nB1B/1B1b1nRN/r2q2q1/2k2b2/4qBP1/1b2b1b1 w - - 0 1 illegal: No possible last move
3Q1N1k/2nRK3/2rnnr1q/n1P3Qr/1p2p1R1/b4q2/1qB2Q2/rb2Q3 w - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 h4 cxd4 e4 g5 e5 gxh4 e6 b3 Qd2 fxe6 Nf3 b2 Qd1 e5 Bh6 Bxh6 Ng1 e4 Nc3 Bg7 Nd5 Bf8 Nf6+ Kf7 Ne8 Kxe8 Ke2 Kf7 g4 Kg7 f4 b1Q c4 e5 f5 h5 g5 b5 g6 d5 a5 e3 Kf3 h3 a6 h4 Kg4 d3 a7 d2 Qb3 d1R Qa4 h2 Qa6 d4 Qe6 e2 Qd5 e1N Ra3 h3 Ra2 d3 Bg2 d2 Bf3 Rc1 Ra3 d1R Ra2 Ba3 Ne2 b4 Qa5 Na6 Qc7+ Ne7 Kg5 Qd5 Bg2 Qb2 Nf4 Nd3 Rg1 h1Q Qd8 h2 Be4 Nc7 Rg4 Nc5 Bc2 Qdf3 Qe8 Rf8 f6+ Kh8 f7 Nc6 Kf6 Bf5 Ne6 Na5 Ke7 Rd5 Qd8 Rc8 a8Q Ra1 Qc6 Qhc1 Qce8 h1N g7+ Kh7 Rg1 Nf2 Rg4 Nfe4 g8Q+ Kh6 Rg3 Nd6 Qg5+ Kh7 Rg1 Kh8 Rg4 Nd3 c5 Nf4 Qb5 Qch1 Qf1 Qh6 Qe1 Bd3 Bb1 e4 Bc2 Rg8 Nf8 Nfe6 Qf5 Rg6 Qg5 Qe5 Rb2 Rf6 Rb1 Qb2 Rd1 Ndb7 Qc1 Rh5 Qg5 Bc4 Rd2 Ba2 Rd7 Nd6 Ng6+ Kh7 f8Q Bb1 Qf7+ Ng7 Nf8+ Kh8 Qfg6 Nge6 Q6f5 Ra8 Qff4 Ra6 Qfg3 Rb6 Qgf2 Rc6
b2b4/Qp1Rqp1R/pb1Pn1nR/1r4k1/1r1R4/2N1p2b/1Q2K1qB/4q3 w - - 0 1 illegal: Other
2B4Q/1B3kP1/N1B4q/4r2r/2br3B/nNp1nr2/q1B3nn/b3n1Kq w - - 0 1 illegal: No possible last move
K1rR2bB/n3B3/4q1PQ/1R1rR3/1b2qBnp/r1B3n1/r2p3k/q1r5 w - - 0 1 legal: proof: e4 f5 c4 d5 b4 dxc4 d4 fxe4 b5 g5 Bd3 cxd3 b6 axb6 Kd2 b5 Ke1 b4 g4 h6 h4 Be6 Nf3 Bd7 h5 Be6 Nh4 Bc8 Nd2 Bd7 Ndf3 gxh4 g5 Bh3 g6 Bc8 Ng5 hxg5 Kd2 Kd7 Ke3 Kd6 f4 e5 a4 c5 f5 b5 f6 d2 a5 b3 d5 b2 f7 b1R a6 b4 a7 c4 h6 g4 h7 b3 Qc2 c3 Re1 g3 Rg1 g2 Ra5 b2 Ra4 Qb6+ Rd4 Nf6 Qd3 c2 Qc4 Ng4+ Ke2 e3 Kd3 e2 Ke4 e1Q+ Qe2 Ra1 Rb4 b1R Ra4 Ra2 Ra6 Rb5 Ra3 Be6 Ra5 Nc6 Bb2 Qa1 Rb1 g1N Bc3 c1R Qe3 Ne2 Qh6 Rc5 Rbb5 Ng3+ Kf3 Be7 f8B e4+ Kf4 Rc8 a8R e3 Bfg7 Rhd8 h8B e2 Bgd4 e1Q Be3 Bg8 Rb8 Nh5+ Ke4 Na7 Kd4 Ng3 Bf4+ Kd7 d6 Ke6 d7 Kf5 Ra8 Qbe6 Rab8 Rf8 d8B Re5 Ra8 Bb4 Be7 Qh1 Rd5 Rfd8 Rb5 Rd6 Rab8 Rda6 Rd8 Qe1 Rc5 R6a3 Rbb5 Ne3 Rcd5 Kg4 Rdc5 Rf5 Re5 Kh3 Red5 Ng4 Rdc5 Ba5 Rcd5 Nc6+ Kc5 Bb4+ Kb6 Kh2 Kb7 Na7 Rdc5 Rc6 Ka8 Q1e4 Rc4 Rfc5 Rcd4 Rd6+ Rd5 Rcc6 Rg5 Rd5 Re5 Rc8+
2nR2K1/1R1pb3/1q1bn3/5r1Q/1NPk2N1/1r1p2q1/p1Q2rR1/4nR1r w - - 0 1 legal: proof: h4 b5 b4 e5 a4 g5 d4 gxh4 f4 exf4 d5 a5 d6 bxa4 e3 c5 b5 a3 Bb2 a2 Bd4 cxd4 Bc4 Bxd6 Be2 Ba6 bxa6 Bf8 Bf3 Ra7 Ba8 Rxa8 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 a4 c4 h3 g4 h2 a7 d3 e4 a3 Nh3 f3 Ng5 f2 Qc1 f1R Qd2 h4 Qb4 h3 Nd2 Bd6 Rg1 h1R Rg2 h2 Rb1 a1B Ngf3 a2 Ne1 Qb6 Qa4 Na6 Qc2 Rb8 a8R Rf2 Ra7 Nc5 Rb7 Ne6 Ndf3 Rh5+ Ne5 Rhf5 Rd1 Bc3 Ra1 Bcb4 g5+ Kg7 g6 Kf6 g7 Be7 Rb1 Bbd6 Rb4 Qe3 Rb1 Qg3 Rc7 Rb3 Rb7 Kg5 Rd1 Kf4 Rc1 Ke3 Rb1 Nh6 g8R f6 Rd8 Ng8 Rc7 R5f3 Rb7 f5 Ra1 f4 Rc1 Rff1 Rd1 R3f2 Rb1 f3 Rd1 Rhg1 Ra1 h1Q Ng4+ Kf4 e5 Qh6 Qc3 Rh1 Nc2 Kf5 Nb4 Qe3 Re1 Qb6 Qc1 Rh5 Qd1 Rfh1 Rf1 Kf4 Qc2 Rf5 Re8 Rd2 Rd8 f2 Rb1 f1N Ra1 Nh2 Rf1+ Kg5 Ke4 Rdf2 Kd5 Nc7+ Ke4 Nf3 e6 Bf8 e7 Ne6 e8Q Ne1 Qf7 Ne7 Qh7 Nc8 Qh2 Nc5+ Kd4 Kf4 Qh7 Kf3 Qh5 Rf4+ Kd5 Bde7 Ke5 Ne6 Qf5 Bd6+ Kf6 Bfe7+ Kf7 Qb5 Nh6 Ke3 Ng4+ Kd4 Kg8 Qb6 Qh5 Rf5
bqb2r2/1b2N2N/1r1n4/5B1P/1Qn2b1k/2bn1n1B/1Q4Kb/B1rB1r2 w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 h5 b4 hxg4 a4 e5 f4 exf4 Nc3 a5 Nb1 axb4 Kd2 b3 Ra3 Bxa3 Rh2 b2 Rh3 Bc5 Ra3 Bxa3 Ke1 Bf8 Kf2 Ke7 c4 Kf6 e4 d5 a5 b5 a6 g5 a7 f3 h5 d3 c5 b4 c6 b3 c7 g3+ Ke3 g2 Kf2 d4 Na3 b1N Nc4 d2 Qe2 d1N+ Kg3 d3 Qd2 b2 Na5 f2 Nh3 g1B Qe2 g4 Nc4 d2 Na5 Ne7 Qe3 Nf5+ Kg2 g3 Qe1 Bh2 Qe3 Nd6 Qa3 Nd7 Bb5 f1B+ Kh1 Ne3 Nb7 d1R Qa5 Nec4 Ng1 Bg7 Ba6 Nbd2 e5+ Kg5 e6+ f5 e7 b1B e8B Nde5 Qb6 f4 Bb2 f3 Qb5 f2 Qb4 Rc1 Na5 Nd3 Nh3+ Kh4 Ba1 Rb8 a8Q Rf8 Qab7 Bc3 Ba4 Nf3 Bd1 Ba2 Q7b5 Rb6 Ng5 Bfh3 Nh7 Bb7 Qb2 Qb8 Nc6 Bhc8 Kg2 f1R Ne7 Bb3 Qa5 Ba4 Qc5 Bac6 Qcb4 Ba8 Bb5 B6b7 Ba6 Bg1 Bb5 Be3 Bd7 Bf4 Bf5 Rh1 Bh3 Rh2+ Kf1 g2+ Ke2 g1B+ Kf1 Rh1 Kg2 Bgh2 Bf5 Bd7 Bh3 Rf1 c8B Ba4 Bcg4 Bd7 Bf5 Bdc8
Q1nQ2q1/7r/B1Pp1pnn/3r4/KnNb4/1N1k2r1/B1b2r2/N1n2N1r w - - 0 1 legal: proof: g4 a5 a4 c5 d4 cxd4 f4 g5 h4 e5 b4 axb4 Rh2 exf4 Ra3 bxa3 Rg2 f3 Bf4 gxf4 g5 h6 g6 Qc7 Rg4 Qd8 Rg5 hxg5 Kd2 Ke7 e4 Kd6 c4 Kc5 Kc2 b5 Kb3 d6 e5 b4 h5 f2 a5 a2 e6 a1N+ Ka4 b3 e7 g4 e8B b2 a6 f3 h6 g3 g7 d3 h7 Kd4 a7 d2 c5 g2 c6 Na6 Qe2 d1R Qe7 Nb4 Bc4 f1N Qe6 f2 Qe1 Nd2 Bb5 f1R Qe7 Nc4 Qc7 Bf5 Ne2+ Kd3 Qb8 g1N Nd2 b1R Qb7 Nh6 g8N Rf2 Ng3 Nf3 Ngf1 Bg7 Nf6 Nb3 Ba6 Nh4 Nfe4 Nc1 Nb3 Ng6 Ned2 Bd4 Na1 f6 Bf7 Qg8 Ndb3 Re8 a8N Re3 Nb6 Rg3 Qa8 Be4 Nd5 Bf5 Nde3 Rdd2 Kb5 Nb6 Nc4 Nc8 Ka4 Rd1 Nh2 Rh1 Nf1 Rbb2 Bd5 Rbd2 Bf3 Bb6 Na3+ Kc3 Be4 Rd5 Bb1 Bd4 Ba2 Bc2 Nc4 Qf7 Nh2 Kd3 Nf1 Rd8 h8Q Rd7 Qe8 Qg8 Qd8 Rh7
b1rrrn2/prk3B1/1q1p2q1/1Bn2Q1R/2qp2Q1/4QR1K/1PQ3p1/4b3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 c5 d6 e5 Nf3 exf4 Nd4 cxd4 Be3 a3 Bc1 Bxd6 Nd2 a2 Ne4 Bf8 Nd6+ Ke7 Ne8 Kxe8 Kf2 f5 Kg2 g5 h4 f3+ Kg3 f4+ Kh2 f2 e4 g3+ Kh3 g4+ Kg2 Bb4 c4 d6 h5 Kd7 h6 Bb7 h7 Nf6 c5 Be1 c6+ Kc7 e5 Ne4 e6 Nd7 e7 Nec5 e8Q Nf8 Bd3 f1R Rh2 Rc8 Bc4 Ba8 Rb1 a1R Qe3 Ra5 Rh6 Rb5 Rh5 Rb7 Bb5 Rg8 h8Q Rf3 Qg1 Re3 Qh6 Re8 Qc2 Rh8 Qhg6 Rg8 Qe3 f3+ Kg1 g2 Kh2 g3+ Kh3 g1Q Qg4 f2 Qgf5 Kb6 c7 g2 Ra1 f1Q Ra3 Qc4 Rd3 Qf1 Bd2 Qg5 Rc3 Rcd8 c8Q Qg6 Qg4 Qfe2 Q8f5 Kc7 Qed3 Qd1 Qb3 Rc8 Ba4 Red8 Bh6 Nfd7 Bg7 Qa1 Qbc2 Rge8 Bb5 Nf8 Qdd2 Qa5 Rf3 Qa6 Qe3 Qb6
K7/n2b3P/r3b1Nk/q2rr1r1/1bnN1Q2/2bNN1Q1/2n3Nq/2R1nb2 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 a4 e5 f4 exf4 b5 g5 b6 f3 Ra3 f2+ Kd2 axb6 Bh3 b5 Kd3 b4 Bf4 gxf4 g5 bxa3 Bg4 hxg4 Kd2 Be7 Qc1 Bd6 Qd1 Bf8 Kd3 f1N Kc4 d5+ Kb5 f5 h4 Kf7 c4 Kg6 e4 d3 a5 f3 a6 d4 c5 f4 a7 d2 e5 a2 e6 a1B e7 f2 e8N d3 c6 f3 c7 g3 Kb6 g2 Ng7 Na6 Rh3 Nb4 Qc2 d1B Ne2 g1R Qa4 d2 Nc1 Ne3 Qb3 f1N Ne2 f2 Nf5 Nh2 Rf3 f1B Ned4 Nbc2 Qb4 Rh5 Na3 Bc3 Nc4 Be6 Nb2 Ne7 Nd3 Nc6 Qd6 Bde2 Qf4 d1R Rf2 Qd6 c8N Bg4 Nce7+ Kh7 Rg2 Nf3 Ng6 Nfe1 Rh2 Qd5 Rh1 Bfb4 Kc7 b5 Kb7 Nc4 Ne3 Rg3 Ng2 Re3 Rg1 Re5 Rh1 Bd7 Rg1 Bge6 Rh1 Rh6 h5 Rg8 a8N Rg7 Nb6 Na7+ Kb8 Qc5 Nd5 Qc7+ Ka8 Qa5 Qh2 Rd2 Nde3 Rd1 Ne7 Rf6 g6+ Kh6 Kb7 Rg8 g7 Rg6 Qf4+ Rgg5 Nc5 Ra8 g8Q Rd2 Ng6 Rd1 Ne2 Rdd5 Nd3 Bd6 Qh4 b4 Nd4 b3 Qf4 b2 Qb8 Bdb4 Qd6 Kh7 h6 b1Q Qg3 Qb2 Qc7 Kg8 h7+ Kg7 Rg1 Kh6 Qd6 Ref5 Qdf4 Rfe5 Ne7 Nc6 Nf3 Be2 Qgg4 N2d4 Ng6 Ra6 N2h4 Ng2 Rc1 Na7 Ka8 Ne1 Qfg3 Bf1 Q4f4 Qh2 Nhg2 Ndc2 Nd4 Rc6 Qf7 Rcd6 Qff4 Ra6
nQ2RB2/3qpnb1/r5N1/bb5N/r1PPBnr1/2r1R3/6n1/2k2Kqb w - - 0 1 legal: proof: b4 a5 h4 axb4 c4 d5 e4 c5 a4 bxa3 h5 f5 h6 fxe4 Qe2 d4 Qf3 gxh6 Qb3 h5 Qb4 cxb4 Ra2 h4 Rc2 Kd7 Rc3 dxc3 Ke2 Ke8 Kd1 Qd5 Ke1 Qd8 g4 Kd7 d4 Ke6 f4 b5 g5 Kf5 g6 h5 g7 e3 Rh3 Ke4 f5 b3 f6 c2 f7 b4 Nf3 e2 Ne5 b2 Bg5 c1B Ng6 a2 Bh6 a1R Rh2 Kd3 Rf2 Kc2 Rf5 b3 Ra5 h3 Ra7 h2 Ra6 h1Q Kf2 e1N Ra2 h4 Ra3 h3 Ke2 h2 Bg2 Nd7 Kf2 Ra4 Nh4 Ba6 Ke2 Bd2 Bg5 Ba5 Ra2 Nh6 g8Q Nb6 Bf3 Na8 Ra3 Bb5 Bg4 Ng2 Kf2 Bg7 f8R Nf7 Bf4 Qd7 Nf5 Rh4 Nc3 b1R Bh6 b2 Ne2 Rc1 Re8 b1N Nf4 Nc3 Ng3 Ne2 Ng6 Nef4 Bf3 Rg4 Re3 Kb2 Bd5 Rc3 Nh5 Kc1 Be4 Qg1+ Kf3 h1B Qf8 Nd5 Ke2 Qh2 Kf1 Ndf4 Qh8 Bc7 Qf8 Ra6 Qg8 Ba5 Qh8 Ra4 Qg8 Bf6 Bf8 Bg7 Qh8 Bh6 Qe5 Bg7 Qb8 Qg1+
2q1qRQ1/1rrNp1p1/k2Pp1n1/6NB/5P1q/2q1rbR1/bB5b/2K2n2 w - - 0 1 illegal: Other
2b1b3/pn3Np1/1P2BKp1/q6b/1k2p3/1n2P2p/RRr1B1N1/2nr1Qb1 w - - 0 1 illegal: Other
K2bn2k/2n3b1/3RP3/N1rQ3N/p3q2P/R1b2r1b/1n1bqN2/2nB3q w - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 g4 b5 f4 exf4 g5 bxa4 g6 hxg6 b5 g5 b6 g4 Bg2 Qxb6 Bd2 a3 Bf1 Qd8 Ba5 Qf6 Bd8 Qxd8 Kd2 f5 Kd3 Kf7 Kc4 a5 Kd5 g5 c4 Kg7 h4 a4 e4 g3 e5 d3 c5 g2 c6 f3 c7 a2 Nh3 g1B Bg2 f4 Qe1 d2 Nc3 d1N Ne2 f2 Bf3 f1Q Qc3 g4 Qa3 g3 Rc1 a1B Be4 f3 Qb2 f2 Rc6 g2 Qd2 Qe7 Re6 Nf6+ Kc4 d5+ Kb5 d4 Kb6 d3 Bc6 Nc3 Rh2 Ra5 Qa2 d2 Qc4 d1N Ng3 Na6 Ka7 Ne8 Qd3 Ne2 Qc2 Nc1 Qb1 Bc3 Qa1 Qe2 Bd5 f1Q+ Nf2 Rc5 Bf3 Nb2 Rd6 Bh3 Ka8 Kg8 c8N Bg7 Nb6 Nac7+ Ka7 Kh7 Nc4 Rf8 Na5 Kh8 Nh5 Qe6 Bg4 Rf3 Qa2 Qf5 e6 Qfe4 Rh1 Bh2 Rg1 Bf4 Qd5 Bfd2 Rh1 g1B Kb8 Nb5 Ka8 Bh2 Rg1 Bhf4 Rg3 Bg5 Bf5 Qh1 Bg4 Rf7 Rf3 Bd8 Re3 Rf3 Rd3 Bcf6 Ra3 Bfc3 Bf5 Qf4 Bc2 Qfe4 Bd1 Nbc7+
qR2BB2/1Q1P1n1k/5qpr/2bP3r/1K1p4/3bpnNn/2R3B1/n1rq4 w - - 0 1 illegal: Other
1b1nK3/2b5/1Q1P4/2r1P3/n2Nn1b1/1Q1Bk1pb/2b1q1R1/qR2qrbB w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 dxc4 f4 h5 f5 hxg4 f6 b3 Nc3 exf6 Nb1 f5 Ba3 b2 Qb3 Bxa3 Qd1 f4 Nc3 Bb4 Nd5 Bf8 Ne7 Nf6 Ng8 Nxg8 Kf2 Kd7 h4 Kc6 e4 Kc5 a5 Kd4 h5 b1N d3 b5 a6 c5 a7 f5 h6 g5 h7 c3 Qe1 b4 Ra4 g3+ Kf3 g4+ Kg2 c2 Ra3 c1B Qd2 b3 Qe2 b2 Rc3 c4 Qd1 Nc6 Qe1 Qe7 Qd1 Ke3 Ra3 c3 d4 Nf6 d5 Nd8 Nh3 f3+ Kg1 g2 Kh2 g1B+ Kg3 f2 Kh4 g3 Kg5 f4 Kg6 f3 Ng5 Bg4 Bh3 f1Q Ra6 c2 Ra4 f2 Ra2 Qe2 Rh2 f1B Rg2 Rc8 a8B Rc5 Nf3 Nc3 Nd4 b1B Rb2 Na4 Rb6 Ba3 e5 c1Q+ Qc2 Ne4 Qb3+ Bd3 Rb7 Qce1 Rb4 Qa7 d6 Be7 Rb7 Rf8 h8Q Qa6 Qb6 Bc2 Qg8 Bb4 Rb8 Ba5 Bb7 Qa7 Ba6 Bf6 Bd3 Qa6 Qgb3 Bg5 Qb7 Bc7 Q7b6 Qaa5 Rb7 Bb8 Kg7 Rf2 Kg8 Bf6 Kf8 Qa1 Ke8 Q5e1 Rh2 Rf4 Bg2 Be7 Bh1 Bfh3 Rg2 Rf1 Qa7 Nc6 Rb5 Bd8 Qb6 Bdc7 Qc4 Q2d2 Rb1 Nd8 Qcb3 Qde2
3R1bn1/knPB3b/2b1b1Qr/4R2b/q1qN2p1/1n2r3/2PNn1K1/r2Q4 w - - 0 1 illegal: Other
1n1rn1rb/bpq2Q2/b1BqNR2/2QRNKq1/6P1/b1rP1p2/k2p4/8 w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 b5 gxh4 b6 axb6 Ba3 b5 Bc1 b4 a4 bxa3 c4 d5 d3 dxc4 Kf2 c3 Bd2 cxd2 Kf3 Kd7 Ke4 Kc6 g4 Kb5 e3 Kb4 Qf3 Kb3 Nh3 c5 Qg3 f5+ Ke5 h5 e4 c4 Bg2 a2 Rg1 f3 Re1 c3 Bh1 f4 Qg2 f2 Rc1 f1R Re1 c2 Qf3 c1B Qe2 f3 Qh2 Be6 Na3 Qg5+ Kd4 Nf6 e5 Bc4 e6 Rg8 e7 Ne8 Ke4 Ba6 Nf4 h3 Qg2 h2 Qf2 h4 Nc4 h3 Ne5 Ba3 Bg2 h1Q Qc5 h2 Ne6 Bh6 Re2 Rc1 Bf1 Rc3 Ree1 Bg7 Be2 Bh8 Bd1+ Kb2 Rc1 a1B Ba4 Ka2 Bc6 Qg1 Rb1 h1Q Rb6 Qhh6 Reb1 Qg3 R1b5 Nd7 Ra5 Rd8 Rab5 Nb8 Ra5 Nc7 e8Q Qh7+ Qg6 Ne8 Qf5 Qc7 Qf7 Qe3+ Kf5 Qh2 Nc4 Qhd6 Ne5 Qh6 Qd4 Bb2 Rd5 Bc5 Qb4 Bd4 Qc5 Ba3 Rb1 Bf2 Rh1 Qg7 Rh6 Bd4 Rf6 Qh6 Qb5 Ba7 Qc5 Qg5+
1k2N1b1/rrp1q1K1/2BN2pP/2r3B1/q1R3b1/3p2P1/n1B1rr1R/3n4 w - - 0 1 legal: proof: b4 e5 f4 exf4 g3 h5 b5 h4 c3 h3 b6 axb6 Qa4 b5 Qc2 b4 d4 b6 c4 Be7 a3 bxa3 Be3 Bh4 Qe4+ Be7 c5 bxc5 Qg2 cxd4 Bf2 d3 Bc5 Bf8 Bxf8 hxg2 Kf2 f5 Kf3 d5 h4 Kd7 e4 d2 h5 d1Q+ Ne2 g1R h6 a2 e5 d4 Bg2 g6 Nd2 Nc6 Nb1 Nb4 Bd6 Rb8 Bf1 Qe7 Rh5 Qa4 Nd2 Rb7 Rh1 Nf6 Rh4 Nfd5 Rh2 Ne3 Rd1 a1R Rb1 Na2 Nc4 Nd1 Rc1 Re8 Nc3 Rg2 Ne4 Rc2 Ba3 d3 Ncd6 Rc5 Rc4 Kc6 Bh3 Be6 Bc1 Bg8 e6 Kb6 Bg2 Ka7 Bh1 Ka8 Nf6 Kb8 Kg2 f3+ Kh3 f2 Kh4 f1R Kg5 Rf2 Bc6 Qd7 e7 f4+ Nd5 f3 Kf6 Rd2 Kg7 f2 Nf6 f1B Rc2 Qe6 Rc4 Rf2 Be3 Be2 Bg5 Qa8 Ba4 Bg4 Bb3 Qa4 Bc2 Rc8 e8B Qe7+ Nf7 Rd8 Bc6 Rdd5 Ne8 Re5 Kh8 Ree2 Nfd6 Ra7 Bh4 Rb1 Bg5 Qe3 Kg7 Rbb7 Rh3 Qe4 Rh2 Qe7+
KNn1rN2/1n3PB1/1n2R2p/5qR1/1B5r/bP1pb3/kqB1r1bn/n7 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 d5 bxa4 d6 cxd6 c3 d5 Bh6 d4 Bf4 Qb6 Bc1 Qd8 h4 dxc3 g3 h5 g4 hxg4 h5 Nf6 h6 Bb7 h7 Bc8 Qd2 Ng8 Qh6 gxh6 Ke2 Kf7 Ke3 Ke6 Kd4 a5 Kc5 d5 f4 e3 Bd2 e2 Rh4 e1N Be2 d4 Bf3 d3 Bd1 g3 Rh1 g2 Rh3 c2 Rh2 c1N Rh1 a3 Be3 a4 Bd4 a2 Bf2 a3 Bh4 Nb3+ Kb5 Kd5 f5 e5 f6 e4 f7 e3 Nh3 g1B Bf6 e2 Bg7 Ne7 Rh2 Be3 Rf2 Nc5 Rg2 Bb7 Bd4 Qc8 Kb6 Kc4 Ng5 Ra4 Bg7 Nf3 Rg1 e1R Nc3 Nh2 Ne2 Bg2 Ne6 Nb7+ N2d4 Re2 Bc2 Kb4 Raf1 a1Q b3 a2 Rf6 Ka3 Rg6 Rb4+ Ka7 Qb2 Ka8 a1N Nc6 Nd7+ Nb8 Rh4 Bc3 Rg8 h8B Ka2 Bb4 Qc5 Bhc3 Qf5 Bg7 Nc8 Re1 Bd6 Rg5 Re8 Nf8 Be7 Rf1 B7c5 Rf4 Be7 Re4 Bd6 Re6 Be7 Be1 Ba3 Bb4 Ndb6+
1k1N1rr1/4p3/1n2rPn1/pR1B1n2/bRq1N3/1n1P3K/3b2r1/R3nBq1 w - - 0 1 legal: proof: b4 d5 a4 b5 c4 dxc4 e4 bxa4 h4 f5 b5 fxe4 Bb2 g5 Bf6 gxh4 Bg7 Bxg7 Ra2 a3 Ra1 Bf8 Qf3 Bg7 Qf8+ Bxf8 f4 Kd7 Kf2 h5 g4 a5 Kg2 c5 b6 c3 d3 a2 g5 h3+ Kh2 c2 b7 Kc7 g6 c1R g7 h4 f5 e3 f6 e2 Bg2 e1N Be4 c4 Bf5 c3 Be4 c2 Bc6 Nd7 b8R Nh6 g8B Nf5 Bb3 Rg8 Bba4 Nb6 Bb7 Qd5 Bb5 Bd7 Bc4 Ba4 Bc8 Bh6 Bb3 Qc4 Bd7 Bd2 Rd8 Rd1 Na3 c1N Bc2 Ne2 Bb3 Nf4 Nb1 Ng6 Nf3 Rf8 Bc8 Kb8 Rd5 Rc1 Nc3 Rc2 Rb1 a1N Rb5 Rb2 Ba2 Nb3 Nd4 Rg8 Ne4 Ra6 Kg1 h2+ Kf1 h3 Ne6 Ra8 Nd8 Rc2 Rg1 h1R Ra1 Rh2 Rg4 Re2 Rh4 h2 Bd7 Nfd4 Bh3 Nf5 Rg4 Re3 Kf2 h1Q Bf1 Qh8 Kg1 Qg7 Kh2 Re2+ Kh3 Rb2 Ng3 Re6 Rd4 Bg5 Ne4 Rg2 Bb1 Bd2 Bc2 Qc5 Rdb4 Qg1 Bd1 Qh6+ Bh5 Qf4 Bf3 Qc7 Ng3 Qc1 Bd5 Qc4 Ne4 Kc7 Nc6 Raf8 Nd8 Kb8
n1r1R3/nPB1K2r/1r2bq1q/p1N1br1N/2P5/q4p1b/1q2k3/NR4B1 w - - 0 1 illegal: No possible last move
q2br1q1/p1b3Rb/p7/2K1N1q1/P1NB1bp1/3P1r2/4R1n1/B2kq1Bn w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 c5 hxg4 c6 dxc6 Na3 c5 Nb1 c4 e3 fxe3 b4 Nc6 Bd3 Nb8 Qb3 cxb3 Ba6 bxa6 Ke2 Ke7 h4 Kd6 Kd3 Ke5+ Kc4 Ke4 a4 f5 h5 g5 h6 c5 h7 g3 b5 e2 b6 e1Q b7 g4 Ba3 f4 d3+ Ke3 Nh3 Ke2 Rf1 f3 Rh1 b2 Nf4+ Kd1 Rg1 g2 Nd2+ b1Q Ne4 f2 Ra2 f1Q Ne6 Qc1+ Rc2 Ne7 Nd4 Ng6 Ne6 Qcg5 Ng7 Nh4 Ne6 Qf7 Bb2 Nd7 b8B Qfg8 Bg3 Nf6 Bd4 Bd6 Nd2 Ne4 Bh2 Bc7 Bde5 Nf2 Bg7 Nh1 Rf1 g1B Bc3 Ng2 Rf7 Rb8 Nd4 Bf5 Bd6 Rb2 Kd5 c4 Nc6 Bgb6 Bd4 c3 Nc4 Qa8 Re2 c2 Bh2 c1B Bhg1 Ba5 Kc5 B1f4 Rg7 Rb6 Nb8 Rf6 Nd7 Bd8 Ba1 Bac7 Nde5 Rf8 Bad4 Re8 Nf3 Re3 Nfe5 Rf3 Ba1 Qf7 Bad4 Re8 h8B Bh7 Ba1 Qd2 Rg8 Qh6 Nc6 Qhg6 Bhd4 Qg5+ N6e5 Qe1 Rg7 Qg8
2n3K1/4N1p1/2B2B1r/r5p1/2r1npR1/2bPbp1p/1PBkb3/R3N1qq w - - 0 1 illegal: No proof kernel
b2qNb1k/N1qP2n1/b4K2/1p4Q1/1n3b2/2rQ1r1p/1BR1P2r/Q1rr4 w - - 0 1 legal: proof: h4 a5 f4 d5 c4 dxc4 a4 e5 b4 exf4 h5 axb4 h6 gxh6 g3 h5 a5 b3 Ra3 Bxa3 Bh3 h4 Bf5 Bf8 Bd7+ Ke7 Be8 Kxe8 Kf2 f5 Kf3 Kf7 d4 Kg7 a6 c5 d5 b5 a7 h5 d6 b2 g4 h3 d7 h2 g5 c3 g6 c4 Be3 h4 Bc5 c2 Bb4 c1B Qd5 c3 Be7 c2 Ba3 Ne7 Qd1 Nbc6 Qd6 Nb4 Qc6 Ba6 Qd6 Rc8 a8Q Rc3+ Kg2 f3+ Kh3 f2+ Nf3 f1R Qd3 f4 Kg4 Rd1 Nbd2 b1Q Nd4 f3 Kg5 f2 Nc6 f1R Na7 Rf3 Bb2 Qa1 Re1 h1B Rf1 Kg8 g7 Nf5+ Kg6 Qa4 Nc4 Qaa5 Nd6 Bf4 Ne8 c1R Rg1 Qac7 Rg5 Ng3 Rc5 Nh5 Rc6 h3 Rc5 Rh6+ Kf5 Rg6 Rc6 Kh7 Rc4 Rg2 g8Q+ Kh6 Rc5 Rh2 Qg5+ Kh7 Ke6+ Kh8 Rc4 Qdb8 Kf7 Ng7 Kf6 Rb3 Rc2 Rc3 Qad5 Qa8 Qa2 Qac8 Qa1 Q8d8+ Kf7 Rff1 Kg6 Ba8 Kf7 Rf3 Kg6 Qdb8 Kf6 Qbd8+
1b1NN2r/p1N5/p3q2R/6R1/QnpPR1nb/2Kqr1n1/P5k1/4bn2 w - - 0 1 illegal: No possible last move
3N4/2B1qR2/Knn1R2b/1rP1pn2/2N2Pq1/q3R2b/rn2n3/2r1Nbk1 w - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 e4 axb4 h4 f5 h5 fxe4 h6 gxh6 a5 h5 Ba6 b3 Ra3 Nxa6 Qf3 h4 Ra1 Nb8 Qf4 Nc6 Qb8 Nxb8 Kd2 Kf7 f4 Kg6 g4 h5 c4 b5 g5 Kf5 g6 Kg4 g7 Kg3 a6 Kf2 a7 e5 c5 d5 Ra5 h3 Ba3 b2 Bb4 e3+ Kd3 h4 Nd2 b1R Bc3 e2 Nf1 e1Q Ra4 h2 Ne3 h3 Ng2 b4 Ne2 b3 Ba1 b2 Ng1 Nc6 Ra2 Qc1 Ra5 Nf6 g8N Qe7 Nh6 Nd7 Ra4 Nb6 Nf7 Bh6 Ne3 Bd7 Nf3 Rhb8 Re1 h1N Nh8 h2 Nf7 Ng3 Nd6 h1N Ra2 Ne2 Nh4 Bh3 Nb5 Nhg3 Nhg2 Nf5 Nc7 Rb7 Ne6 Rbb8 Nf1 Kg1 Ra6 Rb7 Nd8 Qe3+ Kc2 d3+ Kb3 d4 Ka3 Rc1 Nd2+ Kf2 Kb3 b1B Nc4 d2+ Bc3 d3 Ba5 d1N Ka3 Nb2 Kb3 Nb8 Kb4 d2 Kb5 d1Q Ne6 Neg3 Nd8 Qa3 Re3 Qg4 Ne1 Ba2 Bc3 Kg1 Ba5 N6d7+ Rb6 Nc6 Ka6 Rbb8 Rb7 Nb6 Rd7 Bf1 Rd6 Ne2 Re6 N6a4 Bc7 Rb5 Rf6 Bb1 Rf7 Be4 Nd2 Beg2 Nc4 Rc8 a8R Bh3 Nb7 Rg8 Re8 Rg6 Nd8 Rd6 Rg8 Rd2 Rg6 Rdc2 Re6 Nb6+ Na5 N2a4 Nc4 Rcb2 Nb7 Ra2 Nd8 Nb2+
R1bb4/br3B1p/4Pn2/1R2rp1r/5Pk1/r1q1b1n1/1R4KB/2r1BQr1 w - - 0 1 legal: proof: c4 b5 h4 bxc4 a4 g5 b4 gxh4 b5 c3 b6 axb6 Nf3 b5 Ng1 bxa4 d4 d5 Bg5 c2 Na3 e6 Bc1 e5 Nc4 dxc4 d5 c3 Nf3 Ra5 Nd4 exd4 Qd3 Ra7 Qd1 Ra8 e4 Kd7 f4 c5 Kf2 h3 g4 c4 e5 d3 d6 Ke6 g5 Kf5 e6 h2 g6 d2 g7 a3 d7 a2 Qf3 d1R Qg3 Nh6 g8R Ra5 Rg6 Qc7 d8B Be7 Kf3 Re1 Rg8 Nd7 Qg1 Ree5 Qd4 Nf6 Bb2 c1R Kf2 c2 Qe3 c3 Rf8 Kg4 Kg2 Nf5 Qf2 Ng3 Rb1 a1R Re8 R1a3 Rg1 h1R Bb5 Qc5 Bb6 Bd8 Qe1 Rg8 Bd7 Rg7 Qf1 Qc7 Rh8 Reh5 Rf8 Rae5 Be8 Rce1 Qc4 c1B Bb5 c2 Bc6 Bd7 Qa6 Ne8 Be4 Bh4 Bg6 f5 Bf2 Be3 Bc3 Ba7 Bcd4 Re7 Bf7 c1B Qc4 Qa5 Rb5 Qc3 Bb6 Bd2 Rf1 Rea1 Rfb1 Bg5 R1b2 Rac1 Be1 Bh4 Bg1 Bde3 Bg8 Rf7 Bh2 Be7 Qc6 Nf6 Ra8 Bd8 Qc4 Bc8 Qf1 Rb7 Bf7 Rg1+
4r3/rn4P1/1kr2Bn1/b2q1r1Q/1brr3R/R1P5/3n3n/1R1qNR1K w - - 0 1 legal: proof: h4 b5 b4 e5 a4 bxa4 d4 a5 f4 exf4 d5 g5 e3 gxh4 d6 a3 b5 cxd6 b6 a4 Ba6 Bxa6 b7 d5 Nd2 Bc4 Nxc4 d4 Nb6 Ra7 Na8 Rxa8 Kf1 h5 g4 d5 Kg2 Kd7 g5 Kc6 e4 f5 g6 a2 g7 h3+ Kh2 d3 e5 a3 e6 d4 e7 f3 e8R f4 Re1 d2 Qe2 d1Q Qc4+ Kb6 Re5 f2 Re6+ Nc6 Nf3 f1N+ Kg1 d3 Rg6 h2+ Kg2 d2 Rg4 h4 Nd4 f3+ Kh3 f2 Kg2 Na5 b8R+ Nb7 Ne2 h3+ Kf3 Bb4 Qd3 Rh6 Qe4 Rc6 Qe6 Qd5+ Qe4 Ne7 Rf4 Ng6 Rg1 h1R Rff8 h2 Rb1 a1B Kg2 a2 Rbc8 Bc3 Bb2 a1R Qf3 R1a7 Nc1 Ba5 Rf4 Bcb4 Rcf8 Re8 Bf6 Rc4 c3 Rc6 Kh3 Rc4 Rgg4 Rg1 Rh4 Rg5 Rf7 Rf5 Kg2 h1R Nd3 Nh2 Ne1 f1N Rd7 Rc6 Rd8 Rc4 Ra8 Rg1+ Kf2 Rc6 Qh5 Rg4 Rf3 Rgc4 Kg2 Qc1 Kh1 d1R Kg1 Rdd4 Kh1 Qd7 Rf2 Nd2 Rf1 Qd5+ Ng2 Qd1 Rg4 Ra6 Ra7 Kc7 Re4 Bb6 Ne1 Ra1 Ra3 Ra2 Rab3 Ra7 Ra3 B6a5 Rc1 Nhf3 Rb1 Kb6 Rh4 Nh2+
4q1r1/1N3PnK/n1b5/B2k3r/nq3q1N/N5Pq/1p1p3p/N1Q2R1n w - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 a5 h5 axb4 h6 gxh6 a5 h5 Be3 h4 Bf4 Na6 Bc1 Nb8 c3 b3 Rh3 b2 Bh6 Bg7 Nd2 b1Q Bf4 b5 Rh1 Be5 Ra4 Bc7 Be3 Bb6 axb6 Rxa4 Ndf3 Nf6 Bc1 Ra8 Nd2 Ng8 Bd3 Qb4 Bb1 Qxb1 Ke2 Kf7 f4 Ke6 g3 d5 c4 h5 b7 b4 c5 d3+ Ke3 b3 c6 h3 c7 h2 Ngf3 d4+ Kf2 h4 f5+ Kd5 f6 e5 f7 h3 Rf1 h1N+ Kg1 h2+ Kg2 b2 Rg1 e3 Nb3 e2 Na5 e1Q Qa4 d2 Qa3 d1N Bh6 e4 Rf1 d3 Nh4 e3 Kf3 e2 Kf4 Qe8 Kg5 Qf2 Kg6 e1Q Qc3 Bd7 c8N Nf6 Bd2 Rh5 Nd6 Qf4 Nb3 Bc6 Nc4 Na6 Qc1 Nc3 b8N Na4 Ba5 Qb4 Na1 d2+ Kg7 Qbf5 Nd7 Qh3 Nc5 Qee4 Nb7 Ne8+ Kg8 Qee3 Na3 Ng7+ Bd8 Re5 Kh7 Rh5+ Kg6 Qee7 Bb6 Rg8 Ba5 Rg5+ Kh6 Qe8 Kh7 Rh5+
r3r3/bPP2k1B/1rNbq2Q/5r1q/b3N3/2K2bn1/b2N3b/B1Q1n1q1 w - - 0 1 legal: proof: g4 c5 f4 g5 d4 cxd4 a4 b5 b4 bxa4 h4 gxh4 f5 a3 f6 exf6 Bd2 a2 Rh3 f5 Rc3 f4 Rc6 Nxc6 Bc1 Nb8 Nc3 Qb6 Rb1 Qa5 Rb3 Qb6 Nb1 Qd8 Rc3 Bb7 Rc8 Bxc8 Kd2 a1B e4 d5 c4 a5 e5 h5 b5 f5 c5 a4 c6 a3 c7 h3 b6 h4 g5 h2 b7 h1Q g6 d3 e6 d4 g7 a2 e7 f3 Nc3 h3 Bb2 h2 Qe1 f4 Nce2 f2 Nc1 f3 Qe3 Nc6 Bg2 f1Q Nb3 f2 Bc1 Kf7 e8N Qd6 Bh3 Qe6 Qf4+ Nf6 Bg2 Bd6 Qh4 Nb4 Na5 Nc2 Qg5 Nh5 Nf6 Ne1 Nc6 Ng3 Qe5 Re8 Nh3 Qfg1 Qa5 f1R Qc5 Rf5 Kd1 d2 Qa5 Bc3 Bb2 a1B Qc5 Bd7 Na5 Ba4+ Nb3 Ba5 Ng8 Bb6 Nf2 Ba7 Bf1 Qhd5 Ne4 h1R Bd3 Rh6 Ne7 Rg6 Nc6 Rh6 Nf6 Qdh1 Qc1 Qh5+ Be2 Rg6 Bc3 Bb2 Ne4 Bba3 Bf3 Be5 Be2 Bad6 Ba1 Rg4 Nf6 Nf1 Ng8 Rf2 Qc2 Bh2 Bd3 Ng3 Bh7 Rf5 Nf6 Rgf4+ Ng4 Rf3 Nf2 Rb5 Ne4 Rb6 Nba5 Bb3 Nc4 Ba2 Qb1 Ng2+ Kc2 d1B+ Kd2 d3 Kc3 Rf5 Qc1 d2 Nd4 Ba4 g8Q+ Ke7 Qg5+ Kf7 Nc6 d1B Qh6 Ne1 Ncd2 Bf3
br2Q3/1N1Qrq1n/2qq1N1N/P4nb1/2Bq1r2/1n1rP1B1/1pk5/4bK2 w - - 0 1 legal: proof: d4 c5 c4 cxd4 b4 a5 g4 axb4 f4 g5 a4 e5 h4 gxh4 Ra3 exf4 Rhh3 bxa3 Rc3 dxc3 g5 Ke7 g6 Ke6 g7 Ke5 c5 Ke4 c6 d5 c7 b5 a5 h5 Bb2 f5 Qc1 d4 Bh3 c2 Bg2+ f3 Ba1 a2 Bc3 a1Q Kf1 f4 Qd2 c1B Na3 d3 Bh3 b4 Bd4 f2 Nb5 b3 Qa2 d2 Qa3 d1R+ Kg2 f1Q+ Kh1 f3 Bc5 f2 Bb6 Qd6 Na7 Nc6 Be3 Rh7 Qb2 Nd4 Nc6 Rb8 Qc2+ Rd3 Bf4 Bb7 c8N Nf6 g8Q Ba8 Nd8 Re7 Nb7 Nh7 Be5 Bg5 Bd7 h3 e3 h2 Qd1 h4 Bf6 b2 Qc4 Qa4 Qg8 Nb3 Be6 Qad4 Bh8 Bg7 Qe8 Be5 Bf7 Bg3 Be5 Rc3 Qg4+ Kd3 Qh3 Kc2 Nb6 Qfc4 Kg2 h1N Qf5+ Rd3 Ne2 f1R Nd7 Rf4 Nf6 Be1 Ng3 h3+ Kg1 Qcc7 Qfd7 h2+ Kg2 Qcc4 Nf5 Ng3 Nh6 Qcc7 Bc4 Nf5 Bb5 Qcc4 Ba6 Qf7 Bc4 Bf2 Kf1 h1Q+ Ke2 Qhc6 Kf1 Rg4 Bf4 Be1 Bg3 Rf4+
r1rn2Bb/Q1R4p/K2q1r1k/1rrP4/8/4R1Q1/1rbQP3/b1rB2rn w - - 0 1 legal: proof: d4 g5 a4 d5 h4 gxh4 c4 a5 b4 axb4 Ba3 bxa3 g4 f6 g5 f5 Nf3 e6 Nh2 dxc4 Ng4 fxg4 Nc3 e5 d5 Qd6 Nb5 Qd8 Nd4 exd4 Kd2 Kf7 f4 Kg6 a5 c5 a6 b5 a7 a2 Kc2 h3 Rc1 a1B Kd2 c3+ Kd3 c2 Bg2 b4 Kc4 h2 Kb5 c4 Re1 h1R Bh3 d3 Bf1 c3 Bg2 b3 Rg1 g3 Rb1 c1R Bf3 b2 Qe1 g2 Qh4 d2 Rf1 g1R Qg3 d1R Bg2 c2 Qc3 Bf5 Be4 Rh6 Qd2 Qd6 Rf3 Bg7 Re3 Nc6 Ka6 Nge7 Bd3 Kh5 g6 Rhc8 Be4 Be5 g7 Rf6 g8B Kh6 Bd3 Bg6 f5 Rdf1 Be4 Rf4 Bd3 Rb4 Bc4 Rb5 Bb3 Re6 f6 Nf5 f7 Bh8 Ba4 Rf6 Bb3 Ng3 f8Q+ Kh5 Qe7 Nh1 Qe5+ Kh6 Qg3 Rce1 Qd3 c1R Qd2 Rcc5 Rc1 b1R Bd1 R1b2 Rc4 Bc2 Rcc3 Rab8 a8Q Ref1 Qa7 Ra8 Rc4 Ba4 Bb3 Rc1 Bd1 Bb3 Rce4 Ba4 Re7 Bc2 Rc7 Nd8+
1R2rRn1/r5rQ/1P2bR1b/qPnb2pN/q5p1/7k/2N1Qrr1/6rK w - - 0 1 illegal: Other
3n2Kq/5Nbp/1n4Q1/3r3n/Bb1b1Qb1/4NP1B/q3p1PN/2n1kbr1 w - - 0 1 illegal: No possible last move
b1qbb3/rr3B2/1n2B3/p1p2n1p/R1b3Q1/Q3rP1K/1PRbk1r1/1R6 w - - 0 1 legal: proof: h4 d5 d4 g5 c4 dxc4 a4 gxh4 e4 c3 a5 f5 a6 c2 d5 b6 Be3 c1R Bc5 bxc5 Nd2 e5 Ngf3 c4 Nd4 exd4 e5 Rb1 Ne4 fxe4 Be2 Bxa6 Bf1 Bc8 g4 Kd7 d6 Kc6 d7 Kc5 e6 a5 g5 h5 e7 e3 e8B e2 g6 h3 g7 c3 Bg6 Kc4 Rh2 c5 Ra3 c2 Rg3 c1B Rgg2 d3 Bf5 Be7 Rg6 Ra7 Rg3 Rh7 Rg5 Ba6 Bg4 Nh6 g8R Nf5 Rf8 Qc8 d8Q Nd7 Qb6 Bd8 Qb7 Nb6 Rh1 h2 Qf3 Rhb7 Bgh3 Kd4 Rg2 Bc4 Qb3 Ra1 Qa3 Rb1 Rhg1 h1B Rh2 Bg2 Qg4+ Be4 f3 d2+ Kf2 e1R Kg2 d1B Bd3 Ke3 Bc2+ Kd2 Bb3 Re3 Re8 Bc6 Re4 Ke2 Rd4 Bd2 Rf4 Bg8 Bf7 Bda4 Rd4 Bab5 Ra4 Be8 Rc1 Bbc6 Rhh1 Bd5 Rc2 Rg1+ Kh2 Rg3 Rb1 Bc4 Qg7 Rg1 Bg4 Rg2+ Kh3 Ng3 Bge6 Nf5 Bg6 Bgf7 Qd4 Bc6 Qg4 Bfe8 Bgf7 Re7 Qb3 Ba8 Qa3 Reb7
N2K3b/P1Nn4/2r1Q3/1prBb2B/k3b1Pq/r1rr3n/4pB1p/Q5b1 w - - 0 1 legal: proof: d4 c5 c4 cxd4 b4 a5 g4 axb4 e4 g5 h4 gxh4 a4 f5 Ra3 fxe4 Rhh3 bxa3 Rc3 dxc3 Ke2 d5 Ke3 Kd7 Kd4 Kc6 Ke5 h5 f4 e3 f5 e2 a5 e1B a6 c2 c5 a2 f6 a1B+ Bb2 c1R f7 d4 Bd3 h3 Ne2 h4 Bc2 Kb5 c6 d3 c7 d2 Bh7 h2 Bg6 h1R Bh5 h3 Ng1 h2 Nh3 Bg7+ Kf4 e5+ Ke4 Rc6 f8Q Bf2 Ba3 Nd7 Kf5 e4 Bb4 e3 Qe7 e2 Ba5 Ngf6 Ng5 Bg1 Ne6 Ne4 Bb6 Ng5 Bf2 Bae5 Nc3+ Ka5 Na4 b5 Qd6 Bb7 c8B Nh3 Nc7 Qh4 Qa1 d1R Qe6 Rd3 Nb6+ Kb4 Kg6 Rdc3 Kf7 Rd8 a7 Bh8 Qf5 R6c5 Qg6 Be4 Bb7 Rac8 Bd5 Ra3 Nba8 Ka4 Qe6 Rc3 Na6 R8c5 N6c7 Rc8 Ne8 R8c6 Nec7 Rf3+ Ke8 Rd3 Bd4 Bf2 Be3 Rhc1 Bd4 Bg1 Bf2 Nf6+ Ke7 R1c3 Kd8 Nd7+
Nkq5/1p3r2/3pb2r/1RqP2bq/Q2p1PRN/2n3R1/2Knq2r/3R4 w - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 e4 f5 Ba3 bxa3 exf5 g5 h4 gxh4 d5 Rxa4 Ra2 Ra8 Qd4 cxd4 Ra1 a2 Ba6 Rxa6 Kd2 Ra3 Ke1 Ra8 Kd2 e5 c4 h5 f4 h3 g4 d6 g5 Kd7 c5 Kc7 f6 h4 c6 h2 f7 h3 g6 e4 g7 e3+ Kd1 e2+ Kc2 e1Q Kb2 Qe2+ Kc1 Rh6 Nc3 Nd7 Na4 Nb6 Rb1 a1Q Nf3 Nf6 g8Q Qa3+ Rb2 Be6 Qh7 Qc5+ Qc2 Ne4 Rb5 Qc8 Nh4 Nc3 Rd1 Be7 f8R h1R Rg8 h2 Rg3 Nc4 Nb6 Kb8 Qa4 Nd2 Kc2 Bg5 Rg4 Re1 Rg3 h1Q Rg4 Ra6 Na8 Qhh2 Rg3 Qh5 Rg4 Re5 Rg3 Rf5 Rg4 Rf7 c7+ Ka7 Rg3 Q2e2 Rg4 Qd8 c8R Qh8 Rc7 Qc8 Re7 Kb8 Re8 Bd7 Re3 Be6 Reg3 Ra7 Qb3 Ra3 Qa4 Ra1 Rdg1 Rf1 Rh1 Rf2 Rd1 Rh2
2N4r/Bp2nK1B/2P1N3/1pq4N/1r3q2/Q2nqPbn/N2k1b2/1r3br1 w - - 0 1 legal: proof: d4 c5 c4 cxd4 e4 g5 a4 f5 g4 fxe4 h4 gxh4 Rh3 a6 Rc3 dxc3 Ra3 cxb2 Rb3 Qa5+ Rb4 Qd8 Rb5 axb5 Ke2 Kf7 Ke3 Kg6 Kd4 e5+ Kd5 h5 g5 Kf5 f3 h3 a5 h2 a6 h1Q c5 h4 g6 e3 a7 Kf4 c6 h3 g7 e4 Be2 h2 Bf1 Bc5 Qd3 Qe7 Qd2 Na6 Na3 b1R Qb4 d6 Be2 Bh3 Qe1 Bf1 Nc4 Qh4 Ke6 d5 Na3 d4 Kf7 d3 Nc4 d2 Bd1 e2 Bb3 e3 Nd6 d1R Ke6 Ne7 g8N Nb4 Nc4 Nd3 Qa5 e1B Nd6 Bg3 Kf7 Rd8 Ba3 e2 a8N Ke3 Nf6 e1Q Ne2 Qf4 Nc8 Rd4 Nc1 Qg1 Bc2 h1N Nc7 Rdb4 Ne6 Kd2 Na2 Bcf2 Bb2 Qee3 Qa3 Be1 Be5 Nhf2 Bb8 Nh3 Ba7 Qc5 Nd4 Qge3 Ne6 Nb2 Bh7 Nd3 Kg7 Bef2 Nh5 Be2 Qa5 Rg1 Qa3 Nf5+ Kf6 Bf1 Kf7 Ne7+
5b2/kbbQbrPK/4p1r1/3N3P/1R1r3b/2pRn3/1R1Rpr2/1q1n1N2 w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 f5 a4 bxa3 e4 fxe4 g4 g5 f5 d5 Bb2 dxc4 Be5 h6 Bf4 gxf4 g5 h5 Be2 Nf6 Bf3 Ng8 Bg4 hxg4 Kf2 Kd7 d4 Kc6 h4 Kb6 h5 c5 g6 g3+ Ke2 e6 d5 a2 d6 g2 d7 f3+ Ke3 f2 Kf4 f1R+ Kg4 c3 g7 c4 f6 e3 Kg5 c2 Kg6 c1B f7 e2 Qe1 Ra7 Rh3 Bf4 Na3 Bc7 Rf3 Nc6 Rh3 Rf2 Nc2 Nd4 Rh4 Nb5 Rc1 a1B Rd1 Nf6 Na3 Nd5 Rh3 Nbc3 Rh2 Ne3 Rd5 Ncd1 Nb1 Bf6 Qf1 c3 Rd2 Bh4 Nf3 g1B Nd4 Ra4 Rh1 Ka7 Nf5 b5 Ne7 b4 Nd5 b3 Rh3 Bb7 Rb2 Bfe7 f8R Qb8 d8R Rd4 Rf4 Rf8 Kh7 Rf7 Nd2 Bh2 Rg4 Bhd6 Qe1 Bf8 Nf1 Bc5 Qd2 Bce7 Rb1 b2 Re4 Rd3 Rb4 Rd4 Rd7 Ng4 Rd3 Nge3 Rc1 b1R Rc2 Rg4 Rd8 Rg6 Rcb2 Ra1 Qc2 Ra6 Qa4 Ra5 Qd7 Ra4 R4b3 Rd4 Rb4 Bc6 Rbd2 Qb6 Rb8 Qb5 Rb6 Bb7 Rbb2 Qb3 Rb5 Qa2 R5b4 Qb1
K5k1/P2nQb1r/4rn2/1Qnp4/nr1bR3/1Rnb4/QB1P1rrq/1R6 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 bxc3 a4 gxf4 g5 e5 Na3 h5 Bh3 b5 Bg4 hxg4 a5 e4 Nc4 Nh6 Nf3 exf3 Nb2 Ng8 Na4 bxa4 Kf2 c5 h4 f5 e4 Kf7 a6 d5 a7 a3 h5 c2 e5 c4 h6 c3 h7 a2 Ba3 c1N Bd6 c2 Rf1 g3+ Ke1 g2 Kf2 g1R Bc5 Qd6 Be3 Nf6 Qe2 Be6 Qc4 Nbd7 Qc8 Rg2+ Ke1 Nb3 Qa6 c1N Qa3 f2+ Kd1 f3 Kc2 f4 Kc3 Bg7 Rb1 a1N Re1 f1R Qa4 f2 Bd4 f3 Qa2 Rae8 Re4 Nbc5 Kb4 Ne2 Kb5 Na4 Bb2 Nec3+ Ka5 Qc7+ Ka6 Nb3 g6+ Kf8 Qa3+ Re7 Qa2 Bf7 e6 Qh2 Kb7 Nbc5+ Ka8 Rd1 Rh4 f1B Re4 Rg8 h8Q f2 Qh3 Bd3 Qh7 f1R Qh4 Rff2 Qg5 Bh8 g7+ Ke8 Qe5 Re1 Qc7 Rf8 g8R Re3 Qc6 Rh3 Qb7 Rh7 Rg3 Rg8 Qb4 Kf8 Qb5 Rg4 Rf3 Kg8 Rfe3 Nb8 Rh3 Re8 e7 Bg7 Ree1 Rb4 Re4 Rc8 Rhe3 Rc6 Rh3 Nbd7 e8Q+ Bf8 Qe7 Re6 Rhe3 Bh6 Rf3 Be3 Rh3 Bd4 Rf3 Be2 Rfe3 Nd1 Rc3 Bd3 Rb3 Ndc3
2R1qb1n/2Bq3R/3r4/2pqr3/PP1RQ2n/1r1qr2Q/1bkp1Qb1/K7 w - - 0 1 legal: proof: f4 a5 c4 g5 d4 b5 b4 bxc4 h4 gxh4 Nc3 d5 f5 a4 Ne4 dxe4 e3 e6 Bd3 exf5 Nf3 exd3 Nd2 f4 Nb3 axb3 Kd2 Ke7 Kc3 Kd6 Kb2 Kd5 a4 Ke4 g4 f5 d5 h5 g5 c5 g6 f3 d6 f4 d7 c3+ Kb1 b2 g7 c2+ Ka2 b1R Qd2 f2 Qe1 f1Q Qe2 h3 Qh2 d2 Ba3 Kd3 e4 c1B e5 h4 e6 f3 e7 f2 e8R Nc6 Re1 Qe2 Rd1 f1Q Qb8 h2 Qb5+ Kc2 Qb6 h3 Qb8 Rh6 Qg3 Bb7 Qg5 Nce7 Qd5 Rd6 Qf7 Nh6 g8Q Ng6 Qh8 Qee8 Qf2 Bg2 Re1 Bb2 Re4 Nf5 Rd4 Qd3 Qh6 Qc7 d8Q Nfh4 Qe7 Nh8 Qe4 Qcd7 Re1 h1Q Qh5 Bc1 Bb2 h2 Qhf5 Rd8 Qh3 Re6 Bc3 Rb3 Rb1 Re5 Ka1 Qde7 Re3 Rd6 Rg3 Q7d7 Rg8 Qd1 Bb2 Qf3 Bc3 Ba3 Rh1 Qff7 Bb2 Qd5 Bc3 Nf7 Rh8 Bc1 Rh7 Nh8 Rf1 h1R Rg1 Bf3 Rg8 Re1 Bb2 Re3 Bc3 Be7 Rf8 Bg2 Bb2 Qg6 Rc8 Bf8 Qe2 Ree6 Qf2 Ra6 Bc3 Qge8 Rc4 Kd1 Bf6 Re5 Bd8 Rd6 Rd4 Kc2 Bc7 Bb2+
1N3rb1/Npn2R2/6rr/1nK5/3brPb1/2QqrbN1/1r2P2k/2N1Nb2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 d3 b4 f5 g4 a5 h5 axb4 Bb2 e5 Ra3 bxa3 Bh3 d2+ Kf1 g6 g5 gxh5 Bc3 h4 Bg4 fxg4 Bd4 exd4 f4 Ke7 Kf2 Ke6 c4 Kf5 c5 h5 a5 d5 c6 a2 c7 a1R a6 d3 Ke3 h3 Kd4 h4 g6 h2 g7 g3 a7 Kg4 Na3 h3 Nb5 g2 Qf1 Kg3 Qb1 d1B Nc3 d2 Qh7 Ra3 Qg6+ Bg4 c8N Bc5+ Ke5 d4 Nb5 d3 Nc7 Bb3 Qh7 d1R Nd5 d2 Ke4 Rb1 Ke5 d1R Nb4 Na6 Nc2 Bd4+ Ke4 Nc7 Na1 Ne7 g8N Nc6 Qf5 Rb2 Qe5 Rh6 Nf6 Bg8 Nf3 g1R Ne1 Rb8 a8N Na7 Qc5 Nab5 Nab6 Qd6 Na7 Rf8 Nbd7 Rg2 Rf1 h1B Rg1 h2 Nb3 Rc1 Qc6 Rc4 Nh5+ Kh3 Kd3 Rg3+ Qf3 Bg2 Nb8 h1B Qe3 Ra6 Nc1 Kh2 Qf3 Rh3 Ng3 Bf1 Qe3 Bhf3 Qd2 Qa3+ Qc3 Bg7 Ke3 Rag6 Kd3 Qa6 Ke3 Re4+ Kd3 Ree6 Kc4 Re4+ Kc5 Bh1 Nh5 Rhe3 Rg3 Bhf3 Rh3+ Kg1 Ng3 Be5 Rh5 Bf6 Rd5 Kh2 Rf5 Bg7 Rf7 Qa3+ Qb4 Qd3 Qc3 Bd4+
r2Nq3/1r2R1nQ/2r1P1nN/5p2/k1q1prNb/Pn6/Q2b1N2/K4q2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 Bd2 axb4 Bc1 g5 c4 gxh4 a3 b5 Be3 b3 Bc1 b4 Ra2 bxa2 e4 f5 e5 Bb7 Bd3 Bc6 Be4 Bb5 cxb5 Qc8 Ke2 Qc7 Ke1 Qd8 f4 fxe4 f5 Kf7 f6 Ke6 f7 Qb6 Bg5 Qd8 Bf6 exf6 Rh3 Ke7 Rh2 Qc7 Rh1 Qd8 Kd2 a1B Kc2 d5 g4 Kd7 g5 h5 g6 h3 b6 Kc6 b7 Kb5 e6 f5 g7 b3+ Kc1 b2+ Kc2 h2 Qf3 h4 Kb3 d3 Ka2 h3 Qg4 d4 Qe2 Nd7 b8N Ndf6 Nd2 b1R Nd7 Ka4 Qe3 Ne7 g8Q Ne8 Qe2 Ng6 Qe1 Rb7 Qe3 Rh4 Nf6 Be7 f8N Bc3 N8d7 Rf4 Nb1 d2 Ne5 d1R Nd3 Ng7 Nf2 d3 Nf3 d2 Qf7 Qe8 Ne5 Rc1 Neg4 d1N Nh6 Nb2 Nf6g4 Bh4 Qe2 Bd2 Ka1 Rc6 Qe7 Nd3 Nc3+ Kb3 Rc1 h1Q Nd5 h2 Nb4 Qf1 Qf7 h1Q Qc7 Rc3 Nc6 Ka4 Nd8 Rc6 Qf7 Qhg1 Qg8 Qh2 Qh7 Qhh1 Rb1 Nc1 Rb3 Qhg2 Rd3 Qf3 Rd7 Qd3 Re7 Qb3 Qc4+ Qb4 Qa2 Qc5 Nf6 Qcc4 Nf6g4 Nb3+
2b5/2N4N/Q1b1rrkb/5NP1/bPqrqn2/K3b3/N1n2QbR/n5r1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 g5 b4 e5 f4 h5 Bh3 b5 Ra3 e4 Kd2 bxa4 Rb3 gxf4 g5 axb3 Bg4 hxg4 Ke1 Qc7 Be3 Qd8 Bf2 e3 Qd2 Bb7 Qd1 exf2+ Kd2 Bc8 Kc1 f1Q Kb2 f5 h4 Kf7 c4 d5 e4 a5 c5 d3 e5 a4 e6+ Kg6 c6 f3 c7 a3+ Ka1 g3 e7 f4 e8N d4 Nd6 d2 Ne8 g2 Nd6 b2+ Ka2 f2 Ne2 g1B Nc1 d3 Qe2 d1R Qe5 f3 Qc3 d2 Rh2 Ne7 Kb3 a2 Nb7 Ra6 Ne2 a1N+ Kc4 Re6 Nd6 Nd7 Qe3 Nc5 Rh1 Qe8 Qc3 Nd3 Qb3 Ne1 Na3 b1B Qa2 Bh6 Nab5 Be4 Rh2 Bc6 Nf5 Rf8 Qc2 Nd5 h5+ Kh7 Qa2 Nf4 Kc3 Rff6 Kb2 Qe7 Nec3 Qc4 Ka3 f1B Qc2 f2 Na2 Bfg2 Qb2 Ba6 c8Q f1R Nc7 Be3 Qa8 Bab7 Qa6 Rg1 Qd4 Bc8 Qda7 Bg7 h6 Kg6 h7 Bh6 Q7b6 Rc1 Qd4 d1B Qda7 Bda4 h8N+ Kh7 Ng6 Rd1 Qd4 Qe8 Qb2 Rd4 Qf2 Qe7 Nd6 Kg7 Nf8 Qe8 Nh7 Qg6 Qb5 Qe4 Nf5+ Kg6 Qa6 Nec2+
bbKR4/1n1q1rP1/1N4k1/6rq/R3br2/1p1q1Qn1/QRPnr3/2b3R1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 a4 g5 f4 gxf4 g5 a5 Na3 axb4 Kf2 e5 Bh3 f3 Bf4 exf4 Bg4 hxg4 Ke1 bxa3 Kf2 b5 e4 d5 h4 f5 h5 Kf7 h6 d3 e5 g3+ Kf1 f2 Kg2 f1R Kh3 a2 h7 d2 a5 d4 e6+ Kg6 e7 b4 e8R f3 a6 b3 a7 f2 Re7 f4+ Rd7 g2 Kg4 d3 Ne2 g1R+ Ng3 f3 Qe1 d1B Rc1 a1B Rb1 d2 Qe6+ Nf6+ Kf4 Be5+ Ke3 Na6 Rc7 Ba3 Rc6 Bb7 Nf5 Rf8 h8Q Rf7 Qh3 Qd7 Qg4 Bc1 Rb2 Bb8 Rc8 Be4 Rd8 Nc5 Nd6 Nb7 Kf4 Re1 Ke5 f1N Qd5 f2 Qf3 Ng3 Qa5 f1Q Qa2 Rg2 Rg1 Qd3 Rc8 Ree2 Rd8 Qc7 Ke6 Rgf2 Qe3 Rf4 Nc4 Qc8+ Rd7 Qh8 Qf3 Qh5 Rd4 Be5 Rd7 Rg8 a8R Bb8 Rd8 Re3 Qf1 Bdf3 Ra4 d1Q Nb6 Re2 Qh3 Nd5 Qg2 Nc3 Qh3 Bg2 Qg4 Nb1 Qf3 R7f5 Ke7 Nd2 Ke6 Rgf8 Ke7 R8f7+ Ke6 Kg7 g6 Kh6 g7 Kg6 Rd5 Rg5 Rdd4 Rf8 Kd7 R8f7+ Kc8 Na5 Ra3 Ba8 Qg4 Ndf1 Qf3 Qe3 Rd8 Nb7 Qg4 Be4 Ra4 Qdd4 Nd7 Nd2 Qf3 Qed3 Nb6 Qd7+
1q4B1/2bb1r1P/Kn3nQ1/1bqp4/4B2P/2pPr3/pnNk2Nr/1rR5 w - - 0 1 illegal: Other
3r1q2/4kb2/Bp4Rb/1P2P1q1/2rPN3/1n2N3/r3R2r/1b1BbbKq w - - 0 1 legal: proof: g4 a5 a4 d5 c4 dxc4 b4 h5 h4 g5 f4 e5 b5 exf4 Qb3 Na6 Qb4 axb4 Ba3 bxa3 Ra2 Nc5 Ra1 Ne6 Nf3 hxg4 Ng1 g3 Nf3 g4 Ng1 Ng5 hxg5 Ra6 Nf3 Ra5 Ng1 Ra8 d4 c5 e4 f5 a5 c3 e5 a2 g6 c4 a6 g2 Kf2 f3 a7 g3+ Ke1 f4 g7 c2 Nc3 c1Q+ Nd1 f2+ Ke2 b6 Rb1 a1R Rb4 c3 Rh3 f3+ Kd3 c2 Rc4 Bf5+ Kc3 Qcg5 Rh4 c1R+ Kb3 Ra2 Be2 f1B Rh6 f2 Rc2 Ne7 Kc3 Nc6 g8Q Na5 Qh7 Nb3 Nf3 g1B Nd2 g2 Rg6 Bh6 Ne4 Rb8 Bg4 Bc4 a8B f1B Ne3 Bf7 Bd1 Ke7 Bb7 Bf2 Bc8 Qf8 Ba6 Nc5 Kd2 Rd8 Rb2 Rc4 Rc2 Bg1 Ke1 Nb3 Rd2 Bh2 Kf2 Bg3+ Kg1 Be1 Nd6 Bb1 Re2 Bg7 Qh1 Rh2 Ne4 Bh6 Rc2 Be6 Rd2 Bf7 Re2 gxh1Q#
1r4N1/1Bn1PbK1/bq1R2n1/4rq2/k2bb3/2R4B/qp1PP1p1/2q3N1 w - - 0 1 legal: proof: g4 d5 c4 dxc4 b4 h5 h4 hxg4 f4 a5 a4 axb4 h5 e5 fxe5 b3 Ba3 Rxh5 Bc5 b2 Qb3 Rh7 Qh3 gxh3 Be7 Rh8 Bg5 Qd7 Bd8 Qxd8 Kf2 Kd7 Kg3 Kc6 Kf4 b5 a5 f5 a6 g5+ Kg3 c3 a7 h2 e6 c2 Ra5 c1Q Ra1 g4 Kf4 b4 Ke5 Kb5 Nf3 c5 Ra3 f4 Re3 b3 Ne1 c4 Rf3 g3 Kf5 c3 Kg6 c2 Rd3 f3 Rg1 h1B Rc3 f2 Bh3 f1Q Rc5+ Ka4 Ng2 Rh5 Nf4 Ne7+ Kf6 Bd5 Rh1 g2 Na3 b1B Rc7 b2 Rc6 Ng6+ e7 Na6 Nc4 Nc7 Nd6 Re5 Rc3 Rb8 a8B Ba6 Ne8 Bf7 Bb7 Qcd1 Rh2 c1Q Rh1 Bh6 Rh2 Bg5+ Kg7 Qb3 Nf6 Qa2 Ng8 Be4 Rh1 Qf3 Rf1 Qfd3 Rf3 Q3d7 Rfd3 Qf5 Rd6 Bh4 Ne6 Bg3 Ng5 Bf2 Nf3 Bc5 Ng1 Bd4 Rb6 Qd6 Rbc6 Qb4 Rd6 Qb6
2b4B/n4K2/brN1rrPR/qn2P1kB/b1n5/2Bq4/2Q1r1P1/bbn5 w - - 0 1 illegal: Other
1RN1n3/nK3Q2/n1r1pq1b/4r1r1/2rk1P2/b2PbB2/1b2P3/R2bqR2 w - - 0 1 legal: proof: b4 f5 g4 fxg4 c4 d5 a4 dxc4 h4 gxh3 Qc2 a5 Ba3 axb4 Nc3 bxc3 Bb2 cxb2 Qc1 Nf6 Qd1 Ng8 f4 Kd7 Kf2 Kd6 Ke3 Kd5 a5 b1Q d3 c5 a6 h5 a7 b5 Qe1 g5 Qh4 b4 Ra2 g4 Qg3 h2 Nf3 c3 Qh3 e6 Ne5 b3 Rg1 h1R Qh4 b2 Nc4 g3 Nd2 c4 Ra6 g2 Ra4 c2 Qe7 c1B Qf7 c3 Rc4 c2 Rc6 h4 Rb6 h3 Qe8 Qf6 Rb7 Na6 Rc7 Rh5 Re7 Re5+ Kf3 Kd4 Qg6 Bd7 Qg5 Rc8 a8R Rc6 Qg3 Bh6 Rae8 Qa1 Rc8 b1N Nc4 Nc3 Na3 Bb2 Nc4 c1B Nb6 Nb5 Qg6 Na7 Qf7 Be3 Qh5 Qe1 Qf7 Rc4 Ree8 Ba4 Rb8 Bd1 Nc8 Rh2 Rh1 g1B Bg2 Bec1 Rf8 Bge3 Rf1 Rh1 Re8 h2 Re7 Rg5 Reb7 Ba3 Rb1 Bcb2 Ra1 Rg1 Qg6 h1R Qf7 Rhh5 Bh1 Kc3 Bg2 Rc6 Ke4 Rgc5 Bf3 Rgg5 Qg6 Qe7 Qf5 Rc4+ Ke5 Qf7 Bg4 Nf6 Bf3 R6c5+ Kd6 Kd4 Qh7 Qg6 Qf7 Ne8+ Kd7 Qf6 Nd6 Nc6 Kc8 Na7+ Kb7 Rc6 Nc8 Re5 Bg4 Rhf5 Bf3 Rg5
3qq2Q/2n3pP/3q2p1/r3RR1n/1bq1rPB1/q1k1N3/p1P1R1b1/4Kr2 w - - 0 1 legal: proof: b4 f5 e4 fxe4 g4 b5 a4 bxa4 d4 c5 g5 cxd4 g6 hxg6 Bh6 Rxh6 b5 a3 Nc3 Rh8 Na4 Bb7 Nb6 Ba6 Nc8 Bxc8 f4 Kf7 h4 Ke6 h5 Kd5 b6 e5 b7 a5 h6 e3 h7 a2 Bh3 Kc4 Nf3 d5 Bg2 d3 Nh2 d4 Nf1 e2 Nh2 d2+ Kf2 e1R Bd5+ Kc3 Be4 a4 Nf1 a3 Qb1 d1Q Bd5 d3 Ng3 d2 Nf1 e4 Bb3 e3+ Kg1 e2 Kf2 Ra5 Rh5 Bh3 Qc1 Nf6 Rd5 Bb4 Rg5 Bg2 Nh2 Nh5 Ng4 Na6 b8R Nc7 Ne3 Re8 Rbb5 Re4 Rge5 Qd5 Rf5 Qc4 Rbe5 Rg1 Rb1 a1Q Ba4 a2 Bd7 Qb2 Ra1 Qa3 Qb1 Qdc1 Bc8 d1Q Bd7 Qcd2 Bc8 Bd6 Qb8 Bb4 Be6 Qdd5 Qh8 Qd8 Bc8 Q1d5 Rd1 Rh1 Rd2 Q5d6 Be6 Rh3 Ke1 Rf3 Bc8 Rf2 Re7 Qde6 Rfd5 Qed7 Nf1 Qdc6 Bg4 Rd4 Rf5 Qce8 Ree5 Re4 Ne3 Rf3 Nf1 Rfe3 Kf2 e1Q+ Kg1 Qd1 Kf2 Re1 Re2 Q1d6 Ne3 Rb1 Re6 Rh1 Ree5 Rh3 Ke1 Rf3 Qg8 Rf2 Qh8 Rf1+
n2r2bR/1bq4b/p2P2q1/4Kpkr/4b1PN/2Qq1Bn1/Br4QP/6b1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 e5 b4 exf4 Ra2 b5 Ra3 bxa4 Rb3 axb3 g4 h5 Ba3 h4 Nc3 g6 Ne4 g5 Ng3 hxg3 Bb2 f3 Be5 Ne7 Bf4 gxf4 Qa1 f2+ Kd1 Qd3 Kc1 Qd8 Qb1 Ng8 Qc2 Rh4 Qd1 Rh8 Kb2 Ke7 Kc3 Kf6 d4 c5 e4 a6 e5+ Kg5 b5 b2 b6 b1B b7 f3 d5 g2 e6 Rh5 e7 Nf6 e8B Ne4+ Kb2 c3+ Kb3 c2 Kc4 c1Q+ Qc2 Ng3 Qc3 Qc2 Bd3 f1B Bd7 f2 Be6 Nd7 Ne2 g1R b8Q Bg2 Nd4 f1B Ne2 Bg7 Qb4 Bd4 Bdf5 Qe4 Qb5 Nb6+ Kb3 c4+ Kb4 f6 Qc2 c3 Nf4 Bc4 Qc6 Bf2 Qd3 c2 Ng6 c1Q Nh4 Qd2+ Qc3 Qc7 d6 Bbd3 Ka5 Rb1 Rf1 Bg1 Bf7 Qe6 Be4 Bb7 Re1 Bb3 Kb4 Rd8 Bd5 Qf5 Re8 Rb2 Rh8 Na8 Be4 Ba2+ Bb3 Bdb1 Kc4 Qfh7 Bd5 Bg6 Be4 f5 Bd5 Bh1 Be4 Qe3 Kd5 Qd3+ Ke5 Qhf7 Bed5 Bh7 Bd1 Bc4 Bb3 Qg8 Ba2 Qg6 Bg2 Bf7 Qf3 Be6 Qf1 Bc4 Bc6 Bhd5 Qg2 Bdg8 Be4 Bcd5 Bf3 Be4
2n2r1k/1Pq1r3/RN1br3/2Pqpqnr/1qb1Q1K1/6P1/2b4N/4NRq1 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 bxa4 e5 c5 b5 cxd4 Ba3 f6 Bd3 fxe5 Bb4 axb4 Bc4 e4 Bb3 axb3 Ke2 Kf7 f4 Kg7 c4 h5 c5 d5 f5 e3 Kf3 e2 g3 e1R b6 h3 b7 b2 Ne2 h2 Nd2 b1Q Rg1 h1Q+ Kf4 b3 Ra2 d3 Rg2 h4 Kg5 h3 Nf1 d2 Kf4 d4 Rh2 b2 Ra6 d3 Ra1 Nh6 Nc1 Re6 Qb3 d1Q Re2 h2 Ra4 d2 Rc4 Qg1 Qb4 h1R Re1 Nd7 Qb5 Nf7 Qa5 Ng5 Re2 Qc7+ Kg4 R8h7 f6+ Kh8 f7 R1h5 Rd4 Nb6 Rd6 Bd7 Nh2 Nc8 Qa6 Bb5 Qa5 Bc4 Qb4 Qb3 Ra6 d1B Qa4 Bc2 Re1 Qb4 Rf1 Qa2 Qc6 b1Q Nd3 Qab3 Ne1 Qd3 Rf5 Qd5 Qe8 Rc6 Rf1 e5 Qd7 Rg6 Qf5 Bd6 f8N Re7 Nd7 Rge6 Qf3 Na7 Qf5 Rf8 Nb6 Nc8 Qf3 Qbd1 Qe2 Q1d3 Qg2 Qg6 Qe4 Qf5+
Nb5Q/4Pr1n/6nK/1r2qn1R/1b5r/n2qqPP1/1RN1Q1nk/1n5b w - - 0 1 illegal: No possible last move
b7/kbPK1Q2/b6b/B1r1rB2/1Pq1n1N1/4bb1N/Q2P2pb/b5nb w - - 0 1 legal: proof: g4 b5 a4 bxa4 h4 d5 b4 h5 e4 dxe4 f4 hxg4 f5 c5 f6 c4 Ra2 c3 Rb2 cxb2 Rh3 exf6 Bc4 f5 Bf1 f4 Rb3 axb3 Ke2 Kd7 c4 Kc6 h5 Kb6 h6 a5 c5+ Ka7 h7 f5 c6 g5 c7 a4 Kf2 g3+ Kg2 a3 Kh3 e3 Qf3 a2 Ne2 a1B Na3 b1B Qg2 f3 Qh1 b2 Nc2 g2 Nc3 g1B Bd3 f4+ Bf5 e2 Kg4 e1B Qg2 f2 Qh2 f1B Qg2 f3 Be6 f2 Kf5 g4 Nd5 g3 Qf3 Nc6 Qg4 Bfa6 Bd7 f1B Ke6 Be3 Qe4 Bg2 Nd4 Bfh6 Ne7 Nf6 Qd5 Qg8+ Kd6 Bh1 Bf5 g2 Qe5 Qc4 Qa5 Ne5 Qa2 Re8 h8Q Nf3 Qg7 Bb7 Ng6 Ng1 Nf3 Bg3+ Nf4 Bh2 Qf7 Re5 Nh3 Ne4+ Kd7 Rc5 Ne5 Re8 Ng4 Ree5 Nf4 Bd3 Nh3 b1B Bb2 Be2 Bd4 Bf3 Bb2 Ra5 Bc3 Ba8 Bb2 B6b7 Bc3 Bd3 Bd4+ Ka6 Bb6 Bde2 Qc2 Rac5 Ba5 Ka7 Qb1 Qc3 Qc2 Bea6 Qca2 Qc4
2q2rb1/Q3K3/PPp1p3/3bNq1Q/4R3/4rbB1/QnknrpP1/5bb1 w - - 0 1 legal: proof: h4 g5 a4 gxh4 b4 a5 d4 e6 c4 b6 c5 bxc5 b5 cxd4 Ra2 d3 Rb2 Nh6 Rb3 Ng8 Rb4 axb4 e4 Bd6 f4 Nc6 e5 Be7 f5 Bf8 Be2 Nb8 Bg4 Bh6 f6 Bf8 Bf5 exf5 e6 Ba6 e7 Bh6 Nd2 Bc8 Nb3 Bg7 Nd4 Bf8 Ne6 fxe6 Qc2 Kf7 Qb3 Kg6 Qd1 Kf7 Kf2 Kg6 Ke3 h5 Kd4 d5 Ke5 b3 a5 d2 b6 d4 a6 d3 f7 h3 e8Q b2 Ne2 b1B Qc6 f4 Rg1 h2 Qd5 h1Q Qf1 d1B Qd7 h4 Qd6 f3 Qf2 d2 Qb4 h3 Bb2 h2 Bd4 Bb7 Qe1 Bc5 f8Q Bd5 Ng3 c6 Qa4 Nf6 Qf1 Rh3 Qa1 Nbd7+ Kf4 Be2 Qh8 d1B Qc3 Ne4 Qb2 Ne5 Qe1 Nd2 Qh4 Nec4 Qc3 Nb2 Ke5 Qd7 Qf1 Rf8 Qa3 Qc8 Qh8 Kg5 Qf2 Bh7 Qa2 Bg8 Re1 Qf1 Nf5 h1R Nh6 Bec4 Qb3 Qd3 Re2 Re1 Qa2 Qc2 Re3 Bf1 Nf7+ Kg4 Kf6 Kf4 Re2 Rg3 Be3+ Ke4 Bf4+ Kd3 Qh5 Rh3 Qg3 Bg1 Qg7 f2 Re5 Rhe3 Bg3 Kc3 Qgh7 B1f3 Qg7 Qh7 Re4 Rd8 Ne5 R1e2 Qa7 Qf5+ Ke7 Rf8 Nd7 Kd3 Ne5+ Kc2
2b2r2/B1BpbPr1/K3prQ1/3Q1r1n/p1N1r3/6Bn/r2P2qP/k7 w - - 0 1 illegal: No possible last move
B3k3/Pnnn4/2B3bR/3PK3/2br1nQq/1pp4r/pPQ1nb1B/2r5 w - - 0 1 legal: proof: f4 a5 h4 g5 a4 gxh4 c4 d5 Na3 dxc4 Nh3 e5 Nf2 exf4 Nd3 Bd7 Rg1 Bc8 Nb4 axb4 Rh1 bxa3 Kf2 c5 Kf3 h5 Ke4 b5 g4 f5+ Ke5 b4 e4 f3 d4 b3 d5 f4 g5 c3 g6 c2 g7 c4 a5 a2 a6 h3 Rb1 f2 Qe2 h2 Rg1 h1R Rg3 c3 Be3 c1N Qc2 f3 Rg4 h4 Bd4 h3 Rg5 h2 Rg1 Bf5 Rg5 Rh3 Ra1 Nd7+ Kf4 Ne2+ Ke3 Nf4 e5 Nc5 e6 Bg6 e7 Nb7 Qd2 Nf6 Be2 f1B g8Q f2+ Rg3 Rg1 Bg4 h1N Bc8 Bc4 Qc2 Rc1 Be5 f1N+ Kd4 Nf2 a7 Rb8 Bc7 N2e4 Ke5 Nec5 Qe6 Bh6 Qg4 Bg7 Re3 Ng3 Bd6 Nge2 Re4 Na5 Bb7 Bh6 Ba8 Rb4 Bb8 Nab7 Bc7 Bg5 Re3 Bh4 Rg3 Kf7 e8B+ Kf8 Rg2 Bf2 Bc6 Ne8 Rh2 Qh4 Bb8 Rh1 Rg1 Nc7 Rg3 Rc1 Rh1 Nh5 Rf3+ Ke7 Rf7+ Kd8 Rd7+ Ke8 Rg1 Nhf4 Rg3 Ng2 Rf3 Ra4 Rf6 Ngf4 Rfd6 Bb5 Rf6 Rd4 Rfd6 Bc4 Rf6 Be4 Rh6 Bg6 Qd2 Nfe6 Qc2 N7a6 Bc7 Bf7 Bd6 Nac7 Kf5 Bh5 Bg3 N6f4 Ke5 Bg6 Bh2 Nxd7+
b2Bn3/2P5/N3N2K/3r2rr/Nn3n1P/qqP2bp1/1B1qbBr1/3k4 w - - 0 1 illegal: No possible last move
1N4q1/PPb5/nBr1qrn1/1B3br1/3P3K/3rqB1b/p1k1b2q/B4B2 w - - 0 1 legal: proof: g4 h5 a4 d5 c4 dxc4 b4 a5 h4 g5 f4 e5 Qb3 exf4 b5 b6 Qb4 axb4 a5 Be7 a6 Bf8 Ra5 bxa5 Nc3 Rh7 Nd5 f3 Nf4 gxf4 g5 Rh6 Rh2 Rh7 Rg2 Rh8 Rg4 hxg4 Kf2 Ke7 e4 Kd6 d4 f5 h5 c5 a7 g3+ Ke1 a4 b6 b3 b7 c3 g6 a3 e5+ Kd5 e6 Ke4 h6 b2 g7 b1B h7 a2 e7 c2 e8B c4 Be3 c1R+ Kd2 f2 Ke2 f3+ Kd2 g2 Bf7 f4 Ne2 g1Q Bg2 f1R Bf2 Qh2 Bg1 Ne7 g8B Ng6 Bf2 Bd6 Bh4 Bh3 Bf6 Na6 Bh4 Bc7 Bh1 Qf6 Be8 Qe6 Be7 Rc3 Bg5 Rc8 Bb5 Rb3 Bf7 Rhg8 h8B Rf2 Ke1 Kd3 Bfe8 Kc2 Be5 Rd3 Ng3 c3 Nh5 Rdd2 Be2 Kb2 Bg7 Nf8 Ba4 Bd6 Ng3 c2 Nh5 c1Q+ Bd1 Rc6 Bg2 Bh7 Be7 Bc7 Bc5 Be4 Bc4 Rd3 Bb6 Kb1 Be5 Qe3+ Be2 Kc2 Bb5 Bh7 Nf6 Rg6 Nd7 Rf6 Bh1 Rg2 Bd6 f2+ Kf1 B7f5 Ba3 Rg8+ Bg2 Rg3 Ba5 Qg8 Bb6 Qee6 Bg4 Ng6 Bf3 Rg5 Bb2 Qd8 Be4 Qdg8 Ke2 f1B+ Kf2 f3 Ba1 Be2 Nb8 Qhe5 Kg1 f2+ Kh1 Rd6 Bef3 Qe3 Kh2 f1Q Ba5 Bhg4 Kg3 Qh1 Bb6 Qh5 Bf1 Rc6+ Kg2 Ne5 Kg3 Qh1 Nd7 Bh3+ Kh4 Qh2 Nb8 Ng6#
3RK1R1/2B1pP1n/2n3N1/1nr1Rq1P/nP4rr/2b1q2P/1pq5/k3r2b w - - 0 1 illegal: Other
2N2R1R/K1NN2rb/1Pp1n1q1/b1rr1n1p/8/1rbP1P2/1k3Pn1/1r3n2 w - - 0 1 illegal: Other
r1R2NR1/PnP1b1q1/2b1PP2/1nn5/1n2bbN1/1rn2q2/r1knP1K1/8 w - - 0 1 illegal: Other
k7/bN2N2p/1npPbP2/1P1n2K1/r4N2/Pn1P2Bn/1p1p4/rr1q2n1 w - - 0 1 illegal: Other
nq1NNRrR/2B1R3/1p6/k3p1Q1/2qqp3/B2B1nKb/3q4/1N1rb2r w - - 0 1 legal: proof: b4 c5 a4 a5 h4 axb4 d4 cxd4 e3 dxe3 a5 g5 a6 gxh4 a7 f6 Nf3 Na6 Ng1 Rb8 a8Q f5 Qa7 Bh6 Qad4 Ra8 Qe4 Bg7 Ra5 Ba1 Rxa1 fxe4 f4 e5 g4 h5 c4 d5 c5 Kd7 g5 Kc7 f5 h3 c6 Kb6 g6 e2 Kf2 b3 f6 b2 c7 h4 f7 h2 f8B d4 g7 h3 Qd3 Nh6 g8R Nf5 Bch6 Nh4 Qd2 d3 Be3+ Qd4 Kg3 Nf3 Ba3 Be6 Qc1 d2 c8N+ Ka5 Nd6 d1Q Ne8 Nc7 Rf8 Rg8+ Bg5 Bg4 Bd8 Q1d2 Ra2 Qc4 Bg2 Qdd4 Qg5 Ra6 Bf1 Rd6 Ra1 b6 Bg2 Na8 Bc7 Qe3 Ra2 Rd1 Ra1 Qed4 Ra2 Ne1 Nf3 Qd2 Nd4 Nf3 Ne6 Qdd4 Rg1 h1Q Nd8 h2 Bh3 Bd7 Bg4 Qd2 Bh5 Bh3 Bf7 Qdd4 Rg2 Qe1+ Rf2 h1Q Ra1 Qec3 Rh2 Qcd2 Be6 Qf1 Bd7 Qh1 Ba4 Qf1 Bc2 Qh1 Bd3 Qf1 Nc3 b1R Rh1 Rbc1 Nb1 Qb5 Nb7+ Ka4 Rf6 Be6 Ned6 Qbc4 Bd8 Ng1 Rh8 Bh3 Bb2+ Kb4 Ra6 Re1 Ra7 Rcd1 Rf7 Qf5 Rf8 Qfc8 Ne8 Qb8 Ba3+ Kb5 Bc7 Nf3 Nd8 Rf1 Bcd6 Rh1 Re7 Ka5 Bc7 e1B#
Rbk1bq2/1b1NnpN1/Bbq3R1/2q5/4B2r/n1BK4/3b2r1/RqQN2n1 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kd2 g5 c4 d5 e4 Kd7 h4 b5 e5 f3 h5 d3 c5 f2 h6 b4 h7 d4 Qb3 a2 Bh3 f1Q Bg2 g3 Qa3 b3 Ne2 b2 Ng1 g4 Ne2 Na6 Rh2 Ne7 Nf4 Qf3 Nh3 Bb7 c6+ Kc8 e6 Nb4 c7 Bh6+ Nf4 Nc2 Bh1 g2 Qb3 g1B Rh5 g3 Rh4 g2 Qb6 Qf8 Nc3 b1Q Qb5 Na3 Qc5 Qc6 Rg4 Qb4 Qc4 Qbc5 Bb2 Rg8 h8N Ra4 Ng6 Bf2 Nd1 g1N Be4 Bg5 Rc1 a1B Ne5 Bh6 Nd7 Rb4 Rh4 Rg2 Bc3 Bb2 Ra1 Be3+ Ke1 d2+ Kf1 d3 Nh5 Bhf4 Ng7 Bc1 Rg4 Ra4 Rg6 Bg3 Nf2 d1B Ke1 d2+ Kf1 Nf5 e7 Bb3 e8B Ne7 Nd1 Bef2 Qd4 Rc4 Qe3 Ba4 Qg5 Nh3 Ke2 Ng1+ Kd3 Rb4 Nb2 d1Q+ Qd2 Qb3 Nd1 Rc4 Qc2 Bd2 Qc1 Qb1+ Qc2 Qa6 Bc6 Qcb6 Nc5 Rh4+ Bb5 Ba8 Bc4 Qab7 Beb5 Bfe3 Ba6 Be8 Nd7 Qd6+ Bd5 Bb6 Ba5 Qc5 Be4 Be5 Bc3 Bh2 Bb5 Qbc6 Bc4 Kb7 c8R Bd6 Rb8+ Kc7 Ba6 Bb7 Ra8 Be5 Nb8 Kd8 Nd7+ Bb8 Bc4 Qb3 Qc1 Kc8 Ba6 Qb1+
n3bQb1/r3RrB1/r1p3rb/5NR1/Bk1b2N1/R1n1r3/2rBqN2/r1K5 w - - 0 1 illegal: No possible last move
R1B1N1nb/1qrQN3/4bbB1/1Nr5/1n4rk/n6b/1p1rRrrR/3K2B1 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 e4 Ke7 g4 Kf6 c4 Kg5 e5 f5 c5 d5 e6 b5 e7 h5 e8N h3 c6 h4 c7 b4 Qa4 a2 Qb5 h2 Qb7 h3 Nd6 d3 Qa6 d2+ Kd1 f3 Bc4 f4 Ne2 f2 Bb3 f1R+ Kc2 d1R Nec3 d4 Nf7+ Kh4 g5 f3 g6 f2 g7 d3+ Kb2 d2 Kc2 Ra7 Qg6 Rh5 Ne5 Qd7 Qf7 Nc6 Qf5 Be7 Nb5 Bf6 Be6 b3+ Kb2 Nb4 Rg1 h1R N1c3 h2 Rg5 Rhg1 Ne2 h1R Ng3 Rh2 Ne4 Rg4 Bf7 Rhg2 Ned6 Qc6 Qh7 Qb7 Bg6 Be6 c8B Rde1 Kc3 d1N+ Kd2 Ne3 Ne8 Nec2 Nc6 Na3 Ne7 Re5 Rb1 a1B Rb2 Rc5 Re5 Rc3 Re1 Rc6 Kd1 Rc2 Ra2 Bad4 Bf4 b2 Bh2 Bde5 Bg1 Bd4 Qh6 Bc3 Qd2 Rc5 Qd6 Rc7 Qd7 Ra5 Na7 Rac5 Nb5 Nh6 g8R Bh8 Rg7 Ng8 Ra1 Bf6 Ra2 Nc4 Ra8 Na3 Bh2 Rfg1 Rf7 f1B Re2 Rf2 Rf8 R1g3 Bg1 Bh3 Rf7 Rff3 Rh2 Rgg2 Rg7 Rff2 Rf7 Be5 Rf3 Bd4 Re3 Bdf6 Re2 Rd2+
4k3/2qp4/1N1rq2b/BN1B1n1r/qR3pN1/1B1b4/1q1R1RQn/2bq2Kn w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kf2 f5 g4 b5 e4 h5 c4 f3 g5 h3 e5 d3 c5 d2 e6 a2 c6 h2 c7 b4 g6 h4 g7 f4 e7 h3 Ba3 b3 Ba6 b2 Ne2 Nc6 Qg1 d1Q Ng3 Nh6 g8N Ne5 Nf1 Nf5 Ne3 Bh6 Nc4 Qa4 Bb7 Ra6 Bb4 Rd6 Nc3 b1Q Bd5 Ba6 Nb6 Bd3 Nb5 Qb2+ Bd2 Rh7 Rb1 a1B c8R Rh8 Rcc1 Qc7 Qg2 Rh7 Rhe1 h1Q Rcd1 h2 Re2 Rh8 Bb4 Rh7 Rdd2 Qhd1 Ba5 Rh8 Qf1 h1N+ Kg1 Ng4 Rf2 Nh2 Bb3 Qe2 Qg2 Qe6 Bd5 Qbe5 Rb3 Bb2 Rb4 Bc1 Bb3 Qb2 Bd5 Bg5 Nh6 Rh7 Ng4 Rh5 Bb3 Bh6 Rfe2 Kf7 e8B+ Ke7 Bf7 Kd8 Bg8 Ke8 Qf2 Qe4 Bgd5 Qe6 Qf1 f2+ Kg2 Nhg3 Qg1 Ne4 Kh1 f1Q Rf2 Qd1 Qf1 Neg3+ Kg1 Qde2 Qh3 Nh1 Qg2 Qd1+
2qN1bB1/R7/2r3kr/b1K2N2/2BnN2n/1Qnpn3/p1R1R3/2Brnb1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 a5 e4 f5 g4 Kf7 b4 f3 c5 a3 g5 f4 c6 h3 b5 h4 c7 h2 e5 a4 e6+ Kg6 e7 a2 e8N h3 b6 a3 b7 f2 Nc3 f3 Bf4 Nh6 Ng7 Nf5 Nh5 Rh6 Bg2 f1R Na4 f2 Be5 Nc6 b8R Ba6+ Rb5 Nh4 Nc5 Qc8 Ng3 Re1 Ne6 f1N Nf5 Ne3 Rc1 a1B Rc2 a2 Bf1 Bc3 Ne2 Ba5 Bf4 Rb8 Nd8 Rb6 Rg1 h1N Nc3 h2 Qb1 Rc1 Qb3 Re1 Rgg2 Rd1+ Ke2 Nf2 Ne4 h1N Rh2 Qd7 c8Q Nd3 Rb4 Bc4 Ra4 Ra6 Qc7 Qc8 Qcb6 Bb5 Qc5 Ne1+ Qcc4 Ng4 Bc1 Ne3 Ra3 Na7 Rf2 Rd6 Ra4 Ba6 Rh2 Nb5 Qc6 Ng3+ Kf2 d3 Be2 d2 Bc4 d4 Ra3 Kh5 g6 Nh1+ Ke2 Bg7 Rf2 Bf8 g7 Kg6 g8B Nc7 Rh2 Ne6 Bb2 Ra1 Bc1 d1N Ra4 Nc3+ Kd2 d3 Ra3 Bb7 Re2 Nd4 Ra4 Bc7 Ra7 Ba5 Qc7 Bd5 Qc6 Be6 Nfg3 Bg4 Nf5 Bh3 Ne6 Ng4 Ba3 Bf1 Nd8 Ndb5 Bb2 Nf6 Ke3 Rd1 Bc1 Ng4+ Kf4 Ne3 Ke5 Qc7 Bce6 Qc8 Bd5 Na3 Kd4 Nab5+ Kc5 Nd4 Bc4 Rxc6+
q3kr2/B3r3/1B1bn3/N3b1n1/q3p3/r1n5/pRN1pQbR/K2NnRB1 w - - 0 1 legal: proof: d4 b5 g4 g5 f4 gxf4 a4 bxa4 e4 f5 g5 fxe4 d5 h5 d6 cxd6 Be2 d5 Bf3 d4 Bg4 hxg4 Kd2 a5 b4 d5 c4 e5 Kc2 f3 Kb2 a3+ Ka2 d3 h4 g3 b5 e3 h5 e2 b6 a4 g6 d2 c5 d4 h6 g2 b7 f2 h7 f1R g7 e4 c6 d3 c7 Nf6 g8N Bd6 Nc3 Na6 b8B Bh3 c8R Nc5 Rh2 Ne6 Kb1 a2+ Kb2 Rf3 Qf1 d1Q Qf2 d2 Rb1 Ra7 Ka1 Re7 Rb2 Re3 Nf3 g1N Rc6 Bg2 Nd4 Nf3 Nc2 Ne1 Ba7 Qa8 Rc5 Rg3 Rch5 Re3 Rh1 Rh3 Rf1 Rf3 Rh2 Re3 Nh6 Rf8 h8B Nh7 Bhd4 Nhg5 Ng4 Rh3 Nge3 Rhf3 Nc4 Rd3 Nd5 Ra3 N2e3 Qc2 Bdb6 d1N Na5 Nc3 Nb4 Qb3 Nbc2 Qb5 Rb4 Qbc6 Nd1 Qc4 Kb2 Qcc6 Bce3 a1B+ Kc1 Qb5 Rb2 Rb3 Qf5 a3 Rb1 a2 Bg1 Nd5 Qf2 Ra3 Rb3 Bae5 Rb4 Rc3 Kb2 Qa4 Ka1 Ra3+ Rb2 Nc3
6q1/2Q2B2/pr1R1rNb/kpNB3N/5n1n/1Q1p2p1/n2Rqq2/2K4B w - - 0 1 legal: proof: b4 f5 d4 c5 g4 cxd4 a4 h5 e4 hxg4 exf5 a6 b5 axb5 c4 e5 f3 e4 a5 e3 a6 bxa6 Bb2 Bb7 Bc3 Be4 fxe4 dxc3 h4 g5 h5 d5 e5 Kd7 f6 Kc6 f7 Kb6 e6 c2 c5+ Kc6 e7 c1Q e8B+ Kc7 h6 g3 c6 Kb6 h7 d4 c7 d3 c8B e2 Ra2 g4 Nc3 g2 Rh6+ Nc6 Rd2 g3 Nh3 g1N Bg2 Qb2 Bb7 Rb8 Bh1 Ne7 Qb3 Nd5 Ne4 Ka5 Rd6 Bh6 f8N Ncb4 Nf4 Na2 N8g6 Rf8 h8Q Rf6 Nh5 Nf4 Bf7 Qg8 Bbd5 Rb6 Nc5 Qd4 Qg7 Qe5 Rc2 Qb2 Kd2 Nf3+ Ke3 Nh4 Kd2 Re6 Qe5 Rf6 Qe7 Qd4 Qc7 Qf2 Rb2 Nb4 Kc1 e1Q+ Qd1 Qe4 Qb3 Qee2 Rd2 Na2+
Q2r1bq1/4k1Nn/2B1r2N/RK2n2q/1r1Qb3/1q1bNb2/5B2/2Bb2bR w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 f5 Kd3 d5 h4 g5 c4 g3 e4 g4 c5 g2 h5 f3 e5 f2 h6 b3 c6 g3 e6 b2 h7 f4 c7 f3 e7 Ra6 b6 Bb7 c8Q Nd7 Rh3 Ngf6 Bg5 Ne5+ Kc2 d3+ Kb3 d2 Kb4 d4 Qc3 d3 Qc5 Be4 b7 Qd5 b8B Re6 Ne2 g1Q Ra5 g2 Nbc3 b1Q+ Ka4 Qh1 Ba7 g1B Bg2 f1B Nd4 f2 Nf5 Qd8 Qb4 Qb3+ Kb5 Kf7 Re3 Qh5 e8N Qa8 Qf3 d1B Neg7 d2+ Rd3 Bde2 Nd5 d1B Bc1 Rg8 h8Q Nh7 Qf4 B2f3 Nde3 Bf1e2 Qg4 f1R Nh6+ Kf6 Bb6 Rf2 Bd4 Bf1 Bc5 Rc2 Bh1 Rc4 Rc3 Bd5 Qd4 Bd3 Rc2 B5e4 Rh2 Be7 Bg2 Rd8 Rh1 Bf8 Bb6 Red6 Qg8 Ke7 Qgd5 Qb8 Qa8 Qc8 Bh3 Qb8 Bd7 Qc8 Bc6 Qe6 Ba3 Qg8 Bc1 Qhf7 Nc2 Nd7 Qb2 Ne5 Bf2 Qh5 Ne3 Qa2 Q4c3 Re6 Qd4 Qa3 Qd2 Qb3+ Qb4+ Rxb4+
2RKQ2r/2r4Q/b3QBrN/3R2B1/3N1b2/1n1b1Nnp/2b3k1/1q2nq1r w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 b4 a5 h4 gxh4 e3 a4 Bc4 a3 Be6 Bxb4+ Kf2 Bf8 Ke1 a2 Bd5 Ra4 Ba8 Rxa8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 h5 c4 f5 g4 d3 e4 d2 e5 f3 e6 Kf4 c5 Kg3 b6 f4 c6 f2 g5 f1B b7 h3 e7 h4 Kd6 h2 g6 f3 c7 h3 g7 f2 Na3 Ra6+ Kc5 d5 Nc4 d4 Ne5 d3 Kb5 Nf6 e8Q Kg2 g8N Nbd7 b8B Nc5 Ba3 Bh6 Qc1 d1R Bb2 d2+ Ne2 Bf4 Qc2 Nfe4 Nh6 Nb3 Nf3 Ng3 Rc1 a1N Qh7 Nc2 Bf6 Ne1 Rc6 Bb7 c8Q Rc1 Qce6 d1B Rc8 Bc2 Bd6 Qc7 Bde7 Qb8 Bg5 Rc6 Bef6 Rc7 Kb6 Ra1 Nc1 Bfd3 Ne2 f1Q Ned4 Rc1 Qd6 Rg7 Qde6 Bba6+ Kc6 Rg6 Kd7 Bd1 Ke7 Rc7+ Kd8 B1c2 Rg1+ Kf2 Ne5 h1R Nef3 Nf5 Rg4 Ng3 Rh4 Kg2 Rh5 Bd1 Bh4 B1c2 Rd5 Na5 Bhg5 Qb1 Ra8 Nb3 Rb8 Rc3 Rc8 Rc7
1n2b2K/1r1b1Bq1/3N4/1bQ5/1nN1Q1p1/5Q1n/rRRNpb1n/1b2B1k1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 b4 fxe4 g4 a5 g5 axb4 f3 exf3 g6 hxg6 Nd2 g5 Nb1 g4 Kf2 Kf7 Kg3 Ke6 Kf4 Kd5 Kg5 Ke4 Kg6 d5 c4 e5 h4 g3 c5 d3 c6 g2 c7 d2 b6 Ke3 b7 Kf2 h5 e4 h6 e3 h7 d4 Qb3 d1B Ra2+ e2 Bf4 d3 Bd6 d2 Rc2 Bd7 c8Q Qe7 Bc7 Nf6 Bd6 Nd5 Rc5 Ra2 Na3 Bb5 Qb1 b3 Rc2 b2 Nc4 Nb4 Rh3 Rg8 h8N Bd7 Kh7 g5+ Nf7 g4 Bc7 Rg7+ Kh8 Qg5 Rh5 Bc5 Nfd6 Be3 Qf8 Qe5 Qc1 b1B Ba5 Qg5 Rb2 B1a4 Qe7 d1B Qe4 Qg6 Rc5 Bab5 Rc6 Bda4 Rc7 N8c6 b8Q Qg5 Qa8 Nb8 Rc6 Be8 Qc3 Rb7 Rc7 Qe7 Qcd4 Bbd7 Qc5 Bab5 Rc6 Kg3 Rc8 f2 Nf3 g1N Nfd2 Kh2 Bg2 f1N Rc7 Bf2 Qf3 Ra7 Qae4 Rb7 Qcd4 N8c6 Qf7 Qh4+ Qeh7 Nd8 Ne3 Nbc6 N2e4 Ra4 Be1 Nh3 Nd2 Qh6 Bd5 Ra2 Qf3 Nb8 Bf7 Kg1 Rcc2 Nh2 Nec4 Ndc6 Qc5 Qg5 Qhf5 Nb4 Q5e4 Qg7+
1n2r1Rq/q2QnQ1r/nrrK1R2/p4B2/3p4/k2B4/br2NQ2/N3n2B w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 f5 cxd4 f6 exf6 g3 f5 Ra2 f4 Kd2 f3 Ra1 f2 Ra3 f5 Kd3 h6 Be3 f4 Kd2 f3 Bg5 Bd6 Ra1 Bf4+ gxf4 hxg5 Kd3 Ke7 Kc4 Kd6 h4 a5 b4 d3 e4 d2 b5 g4 h5 g5 e5+ Ke7 Kc5 d5 c4 g3 b6 g2 f5 g4 h6 g3 h7 a3 e6 a2 Bd3 f1R b7 f2 Ne2 g1Q Na3 g2 Rh6 d4 Qb3 d1R Nc2 Rd2 Rf6 Rb1 Qb6 f1N Qc6 Rb6 Rd1 Bd7 Na1 Ng3 Rc1 Qf2 Rg1 Ne4+ Kd5 Rdb2 c5 Qh4 Ke5 Qc7+ Kd5 Na6 b8Q Qa7 Qf4 Re8 Qf2 Nb8 Ke5 Nd6 Kd5 Nb5 Ke5 Qh3 Kd5 Nc7+ Ke5 Kd8 e7+ Kc8 Kd6 Be6 Rh6 Bc4 f6 Be6 f7 Bb3 Re1 g1N f8Q Nf3 Rg1 Ne1 Q8f7 Qh1 Rf6 Bc4 Nc2 a1R Rg5 Rd1 Na1 Ba2 Rg4 Rc1 Rgg6 Rf8 e8B Ne7 Rg8 Kd8 Bd7 Re8 B7f5 Nca6 Bfe4 Qh6 Bh1 R6b5 Qe4 Rb6+ c6 Qg7 Ke5 Qh6 c7+ Kd7 c8B+ Kc7 Rf3 Qh3 Bf5 Qh5 Qg4 Kc6 Qgg6+ Kc5 Qc6+ Kb4 Kd6 Bb3 Bg4 Qh4 Rf6 Ba2 Bgf5 Ka3 Rg7 Rhg8 h8Q Qh5 Qh7 Rh8 Rg8 Qh3 Qhg6 Rh7 Qgg2 Qh6 Qgd5 Qg7 Qde6 Qh8 Qd7 Rcxc6+
B4q2/1b2nr1p/Rrk5/q2q1Q2/4p1QB/1n1nN3/B1p1NKpR/4q1R1 w - - 0 1 illegal: No possible last move
Rr1qnN2/4BK2/p2pBr2/2bp1q1B/RqQ1p2R/4b2Q/p2k2N1/4n3 w - - 0 1 legal: proof: g4 f5 f4 b5 d4 g5 a4 bxa4 e4 fxe4 d5 gxf4 d6 Ba6 h3 Be2 g5 Bg4 hxg4 cxd6 Bd2 d5 Be3 Nf6 Bc1 Ng8 Kf2 Kf7 b4 Ke6 c4 Ke5 g6 h5 g5 e3+ Kf3 e2 g7 e1B c5 e6 b5 a3 b6 h4 Kg4 Ke4 c6 h3 b7 f3 g6 a6 c7 f2 c8Q h2 Bg5 Qf6 Nd2+ Kd4 Nh3 Rh6 Nf4 Ke3 Nb3 Bd2 Nc5 Nc6 b8R Qd8 Be2 f1Q Be7 Nd4 Kg5 Nf6 g8B Ne8 g7 Nc2 Bh5 Ne1 Qc6 Qc4 Qg4 Qb4 Rc8 Bc1 Qh3+ Kd2 Ng2 Rb8 Bgf7 Rf6 g8Q e5 Ne6 e4 Qc4 Rh6 Qh8 Rg6+ Kf5 d6 Qf6 Bh6 Bg8 Be3 Nf8 Ba7 Ke6 Bc5 Kf7 a2 Rb1 Rb7 Ra8 Rb8 Rf1 h1Q Rf4 Qg1 Rh4 Qf1 Rb3 Qf5 Ra3 Bb2 Ra5 Bbd4 Ra4 Be3 Bg4 Qf2 Be6 Qf5 Bh7 Rg3 Bg6 Rg5 Bh5 Rg8 Qg3 Rg6 Qh3 Rxf6+
1r2nQq1/2k1b3/q1rN2R1/6b1/2BQN1qQ/Bb4qN/r3nqb1/b2KR3 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 h4 d5 e4 Kd7 c4 b5 e5 f5 h5 g5 e6+ Kc7 e7 a2 e8Q g3 c5 f3 c6 g4 h6 f2+ Kd2 f4 h7 b4 Bh3 f1Q Bb2 b3 Qde2 f3 Q8e6 d3 Bg2 d4 Rh4 f2 Bh1 g2 Q2e3 g3 Re4 Be7 Qf3 Nf6 Nc3 Ra6 Rg4 Qg8 Ba3 b2 Bc5 b1R Qe1 Rb2+ Kd1 d2 Bb4 Ne8 Rc1 a1B Qe4 Rc2 Rg6 Bh3 Nge2 g1Q Qe6 g2 Nb1 Qh2 Qb3 g1B Qa3 Bg2 Rf6 Qhg3 Nf4 Qfd3 Qc3 f1Q Ba3 Be3 Qb4 Qff2 Nh3 Bg5 Nc3 Rb6 Rb1 Qa6 Qc4 Kc8 c7 Rc6 Qef1 Kd7 c8N Kc7 Qg1 Nd7 Qh2 Qf7 Rd6 Bf1 Ng1 Ng7 Qh4 Nb6 Nh3 Na4 Bd5 Bg2 Rc1 Rd8 h8Q Ne8 Qf8 Qg6 Re6 Qg8 Nd6 Rb8 Nce4 Ra2 Bb2 Nc3+ Kc2 Ne2 Qh5 d1Q+ Kb1 d3 Qd4 d2 Bc4 Ng1 Rg6 Qdg4 Re1 d1B Qh4 Bb3 Ba3 Rd2 Kc1 Re2+ Qf4 Rd2 Qf3 Rc2+ Kd1 Ne2 Qf8 Ra2+
1r5Q/2k1nn2/Q2nbR2/2K5/1r3q2/2rBrQbB/2bBbN1q/r2qR2N w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kf2 b5 c4 h5 g4 f5 e4 d5 c5 Kd7 e5 h3 g5 d3 g6 b4 g7 d2 Kf3 d4 Bb5+ Nc6 e6+ Kc7 e7 h2 e8Q a2 Ba4 d3 Bb2 b3 Qee1 h4 Qee2 h3 Qf2 Qd4 Qg2 Rb8 Qde2 d1B Qg5 d2 Qf6 Bd6 Qf7+ Nge7 g8Q Nd8 Qf6 Nf7 Qgg7 Be6 Qg3 Bc2 Ba3 b2 Nc3 b1R Ne4 R1b4 Rf1 a1R Qb5 d1Q+ Qe2 Qc4 Kf2 f3 Ke3 f2 Bb5 Be5 Re1 f1B Bc1 Rh7 Qd3 Be2 Bd2 Rh5 Qh8 f4+ Kf2 f3 Ke3 f2 c6 Kb6 c7 f1N+ Kf2 Ne3 c8B Bd5 Qg4 Kc7 Ng3 N3f5 Bba6 N5d6 Ke3 Rh4 Rf1 Rb3 Rf6 Rc3 Qgh5 Qg4 Bc4 Bf4+ Kd4 Qf3 Bg4 Be6 Qb5 Be5+ Kc5 Qf5 Qa6 Qg5 Nf3 Qh6 Rf1 h1Q Re1 h2 Ng1 Qe4 Qe3 h1R Nh3 Bf4 Nf2 R1h3 Bf5 Qg2 Ngh1 Qh2 Qe4 Rhe3 Qf3 Bg3 Bh3 Rd4 Nd3 Qf4 Ndf2 Rcd3 Bb5 Rb4 Bc4 Rda3 Bd3 Rc3+
r5n1/1r2b2Q/N5n1/3n1brK/b1q1RB2/1QRnN1bb/1Q3r2/BRr1k3 w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 c4 Ke7 e4 Kd6 Ke2 Ke5 Kf3 g5 Kg4 f5+ Kf3 d5 h4 b5 a4 d3 h5 Kd4 c5 d2 a5 Kd3 a6 d4 a7 b3 h6 b2 e5 g4+ Kf4 b4 h7 b3 e6 Qd5 Kg5 f4+ Kh4 f3 e7 f2 e8Q f1R c6 Qc4 c7 Nd7 Qe6 Ne5 Nf3 g1B Ra2 g2 Qh6 g3 Qh5 Bh2 Qf7 g1R Qf6 g2 Qg5 Bg3+ Kh5 Rf2 Ra1 Bh3 c8R Be7 Rc6 Ng6 Nc3 b1N Qb5 b2 Ne4 Nc3 Rc7 b1B Qdb3 Ke2 Nc5 d1N Na6 d3 Nh2 d2 Ra4 Nd5 Ng4 Ke1 Ne3 Bbf5 Rc5 Rb8 a8Q Rb7 Qa7 Nb2 Rc7 Nd3 Rb4 Qc2 Re4 Qc4 Qb2 Rgf1 Q5b3 g1R Rc6 Bf4 Rc5 Rg4 Rg1 d1B Rc7 Qa4 Rc3 Bg3 Rh1 Qc4 Rg1 Nh6 Rh1 Ra8 h8B Ng8 Be5 Rb4 Qc7 Rb7 Qd7 Bd6 Qh7 Rg1 Q3a2 Ba4 Qab3 Be7 Bd2+ Ke2 Bf6 Rc1 Rg1 Rc2 Rb1 Rc1 Q2a2 Rd8 Nd1+ Ne3 Rc2 Be6 Ba1 Ra8 Rc3 Bf5 Qac2 Kf1 Qcb2 Nd5 Be3 Ke1 Bf4+ Re2 Ne3 Rd2 Q3a3 Rf2 Qab3 Rg5+
bQ1rrBq1/1Qn5/Nq1n1k1r/2BRr1r1/Q4rbN/n1B3b1/K5pR/8 w - - 0 1 legal: proof: e4 h5 b4 f5 d4 fxe4 g4 hxg4 a3 c5 b5 cxd4 b6 axb6 Bh6 b5 Bc4 b4 Ba2 b3 Bc1 bxa2 Kd2 Kf7 h4 e5 f4 g5 c4 b5 Kc2 d5 Kb2 d3 c5 d4 h5 g3 f5 g4 h6 e3 c6 e2 h7 e1R c7 b4 a4 d2 a5 d3 f6 b3 a6 e4 a7 e3 Nh3 e2 Rf1 g2 Qc2 g1R Qc6 d1R Rf4 g3 Be3 d2 Bb6 Na6 Ra4 Bd6 Nc3 Bb7 c8Q Ne7 Q8c7 Ref1 Rc4 e1R Q7d7 Nc7 Na4 Qg8 Qe4 Rf4 Bc5 Re8 Rc2 Ba8 Qb7 Re5 Ng5+ Kg6 f7 Nf5 f8B Kf6 Ka3 b2 Nf3 b1Q Nh4 Qb6 Qdc8 Rg2 Qcb8 Rh1 Rb1 a1N Rb5 d1B Rd2 Rgg1 Rh2 Nc2+ Kb2 Na3 Ka1 Qg7 Ka2 Bg4 Ra5 Rg8 h8B g2 Nb2 Rge1 Nd3 Rd8 Nb4 Ree8 Na6 R1e5 Bd4 Bc5 Bg1 Bf2 Rd5 Bg3 Bgc5 Nd6 Qc6 Ke6 Qa4 Qh7 Bf6 Rgg5 Qb7 Qg8 B6g7 Ref5 Bc3 Re5 Qb8 Bc6 a8Q Kf6 Qaa7 Ba8 Qab7 Rh5 Be1 Rh6 Ba5 Rhe1 Bab4 Rg5 Bc3+ R1e5
qRNb1K1N/Rq4rb/B1Nn4/Q2Q2n1/1Q6/3nbr1p/Bb3n1k/1q5b w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ba3 b4 Ke1 bxa3 Kd2 Kf7 g4 Kg6 c4 Kg5 a5 Kf4 c5 d5 g5 b5 f3 Kg3 a6 h5 g6 e5 a7 b4 f4 b3 f5 e3+ Kd3 a2 f6 h3 g7 e2 c6 e1B c7 e4+ Ke2 b2 f7 h4 Nc3 b1Q Qc2 e3 Kd3 h2 Bg2 e2 Na4 h3 Be4 Na6 Nc5 Nh6 g8B Qb7 Rb1 a1B Bgh7 Be7 f8N Nf5 Qc1 Rg8 Nf3 Bb2 Ng6 Bd2 Nfe5 Nd6 Nh8 Be3 Na4 Bf5 c8Q Rg7 Q1c6 Nc7 Nb6 Ne6 Bg8 Ng5 Qb8 Bh7 Nc8 e1Q Rf1 h1B Rf7 Kh2 Qcc7 Qe8 Qa5 Bd8 Nc6 Qc1 Qb4 Qf8 Qc7 Rb8 a8Q Qe1 Kc2 d3+ Kb3 d2 Qca5 d1N Bd3 d4 Ba6 d3 Rc7 d2 Rf7 Nde4 Kc4 Ndf2 Kd5 d1N Re7 Nd3 Bf7 Nd2+ Kd6 N1f2 Ba2 Qd1 Qd5 Qff3 Qa7 Qa8 Kd7 Nde4 Ke8 Qc2 Rf7 Nd6+ Kf8 Qc1 Qac5 Qf1 Qba5 Rb3 Qcb4 Q3g2 Ra7 Qd1 Rc1 Qe4 Rc5 Qb1 Rb5 Rc3 Qbc5 Qb4 Rb8 Qbb7 Qcb4 Rc5 Qdb3 Rf5+ Qf7 Rf3 Qff5 Rg3 Qfd5 Rf3+
2n4b/qq1rR1qB/2nBQ1b1/2bN1q2/1p4rN/2R1n2K/1nn5/1QBN3k w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 Ke7 Kg2 Kd6 h4 Kd5 c4+ Ke4 c5 b5 c6 f5 e3 d5 h5 g5 c7 b4 h6 f3+ Kh2 d3 h7 d2 Ra2 f4 Qa4 d1N Rd2 a2 Ne2 a1B Ba3 g3+ Kg1 d4 Qa7 g2 Kh2 d3 Bc1 g4 Rb2 d2 Ng1 f2 Qa5 f3 Qh5 Ra7 Qg6+ Bf5 c8Q Qb6 Qd8 Bc5 Qh6 Bg6 Qd6 g3+ Kh3 Qb7 Qb6 Ne7 Rb3 Nb2 Rc3 Rg8 h8B d1N Qh7 Nc8 Be5 Nc6 Bd6 Rg7 Bc4 f1N Bg8 f2 Nf3 g1Q Nh4 g2 Rh2 Qb8 Qa6 Rad7 Qa2 Qc7 Qh6 Qh1 Bh7 g1Q Qb3 Qa7 Qc2+ Kd5 e4+ Kd4 e5 Nfe3 Qf5 Nc2 e6 Nde3 e7 Qg5 e8N f1Q+ Ng2 Qb5 Nh4 Qe7 Qf1 Ke4 Nc7 Rg8 Qd1 Qg7 Nd5 Qhf1+ Rg2 Qbb7 Qe1 Qff6 Rf2 Qg5 Rf7 Q5e5 Re7 Qe6+ Nf5 Kf3 Qh1+ Kf2 Qd1 Qef6 Nh4 Qg5 Qd3 Kg1 Qf5 Kh1 Qe6 Bh5 Qhg6 Qf5+ Qg4 Na5 Rd3 Qh8 Nbc3 Nbc4 Bb2 Nc6 Ba3 Rg5 Bb2 Bg6 Ba3 Qf2 Qd1+ Rg1 Qb1 Qe5 Bc1 Rg4 Rd2 Qff5 Nd1 Bc3 Rd4 Nb2 Rd3 B3d4 Rc3 Qh8 Qa2 Qhf8 Qa1 Bh8 Qb1 Qg7
2Qb1R1n/4nr2/N2n1N1B/pnN2R2/b4K2/Q2b2Q1/Bq3q2/1rb1kqq1 w - - 0 1 illegal: No possible last move
Rq1b4/1B2BrQ1/p5r1/3n3n/BbrQ3R/Qr1qN2b/3kb1KN/q3q3 w - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 g4 b5 f4 exf4 a5 h5 a6 hxg4 Bb2 Bxb4+ Nc3 Bf8 Bc1 b4 Nb1 b3 Bd2 Bxa6 Bc1 Bc8 Kf2 Ke7 e4 Kd6 c4 Kc5 h4 Kb4 h5 g5 c5 d5 e5 f5 h6 f3 e6 f4 h7 b2 c6 g3+ Ke1 g4 e7 d3 e8B f2+ Kd2 f3 Ke3 g2 c7 d2 Bf7 d4+ Kf4 d3 Kg3 a6 Ne2 g1R+ Bg2 f1Q Qc2 d1Q Be6 f2 Bh6 d2 Bf4 Qd3+ Be3 Qde1 Nc1 d1B Ra2 Nc6 Bd5 Nce7 Nd2 b1Q Ne2 Nf6 Bb3 Ned5 Nc4 Rb8 Nd4 Be2 Qd1 Kc3 Rd2 Bb4 Rh4 Nh5+ Kh2 Bf5 Bg5 Rhc8 h8Q Rb6 Be4 Rg3 Qf8 Rg6 Ne3 Qa1 Qf6 Qb5 Ba4 Qb8 Rb2 Be6 Rb1 Bd7 Qb3+ Kd2 Qg7 Rf3 Qa3 Bf5 Nec2+ Re3 Be7 Rb3 Ne3 Be6 Qe5 Bd7 Qg3 Be6 Qg1 g3+ Kh1 B6g4 Nf3+ Kc3 Nh2 Kd2 Rc1 Qh3 Rc6 f1R Rd6 Rf7 Rd8 Qhf1 Rh8 Qf5 Bf3 Qd3 Kg2 Rcf8 c8Q Rf4 Qe8 R8f7 Qg8 Rc4 Qg7 Qe8 Qf1 Qb8 Kg1 g2 Rc8 Qbg3 Ra8 Qb8 Qd4 Qec1 Kf2 g1B+ Kg2 Qe1 Qg7 Bf2 Qg1 Bg3 Qf2 Bc7 Be4 Bb6 Qff6 Bd8 Qd4 Nc7 Bec6 Nd5 Bb7 Bh3+
3N1b2/Kbb2qQ1/5qN1/Br5k/rBbRnpRp/1n6/7Q/Nn1rQ1q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 e5 f4 exf4 g4 a5 h5 axb4 g5 Bc5 g6 Bf8 Bh3 Na6 Bg4 hxg6 h6 Nb8 Bh5 gxh5 Kd2 g5 Kd3 d5 e4 f5 a4 Kf7 c4 Kg6 h7 b5 c5 g4 c6 b3 a5 b2 a6 g3 e5 h4 a7 f3 c7 b4 e6 f2 e7 f1B+ Ne2 b3 e8N g2 Ra4 g1B Nd2 b1Q+ Qc2 b2 Nb3 Kh5 Na1 Qf6 Nd6 Nd7 Bd2 Bb7 c8Q Qa2 Q8c7 b1N Nf7 Bh2 Ba5 Bhd6 Q7c3 Bc7 Rg1 Rb8 a8Q f4 Ne5 Qb3 Qa7 Ra8 Qb2 Qa2 Qe1 Nc5+ Kc2 Rb8 Rg4 Nb3 Kd3 Ra8 Qc5 Ra6 Ng6 Rb6 Qe7 Rb4 Qg7 Rb5 Kc2 d3+ Kd1 d2 Kc2 d1R Nd4 Bb4 Ne6 d4 Nd8 Bf8 Rb4 Bc4 Ra4 Nh6 Rb4 Rg8 h8B Nf5 Ra4 Nd6 Rb4 Ne4 Ra4 N3d2 Rb4 Be6 Kd3 Qd5 Qa2 Nb3+ Qad2 Qd7 Ra4 Qdf7 Bb4 Rd5 Kc4 d3 Qh2 Rd4+ Kb5 d2 Ra6 Rc4 Rd6 Rd4 Ba5 Ra4 Rd3 Bbd5 Ka6 Bb7+ Ka7 Bc4 Qeh1 Rf1 Rd7 d1Q Rd4 Qc1 Q1g1 Rd1 Qgf2 Qe3 Qe1 Qg1 Qh7+ Bh6 Bg7 Re8 Bf8 Re5 Bb4 Rb5 Qg8 Bf8 Qg7 Qd6 Qh1 Qc6 Qh2 Qcf6
Qr6/N1bn4/5B1p/p1R4b/r3QbNb/1qR1NbBK/Q1bk2n1/1n1r4 w - - 0 1 legal: proof: a4 c5 h4 b5 d4 cxd4 f4 bxa4 c3 g5 f5 gxh4 f6 d3 e3 exf6 Be2 f5 Bg4 f4 Be6 Nc6 Bb3 Nb8 Bc2 dxc2 Kf1 Ke7 b4 Ke6 g4 Ke5 Kg2 Ke4 g5 f5 b5 d5 g6 h6 c4 a3 c5 a2 c6 f3+ Kh3 d4 c7 d3 g7 f4+ Kh2 d2 b6 Kd3 b7 h3 e4 f2 e5 f1B e6 f3 e7 f2 e8N Be7 Nf3 Bf5 c8Q Nf6 g8Q Nd5 Qe1 d1R Qb4 Be2 Qg7 Ne3 Nbd2 Qb6 Nc4 Bh4 Qe5 Nd7 b8B Ng2 Qa3+ Qb3 Nd4 Bh5 Bg5 c1B Ne3 Kd2 Nf6 Bc2 Nb5 a6 Rb1 a1B Nfg4 Rf8 Qf4 Be5 Na7 Bc7 Qa2 a5 Qe5 Rf4 Bf6 Ra4 Rf1 Qg8 Rb5 Qb3 Kh1 h2 Rc5 Bb6 Re1 f1N Qe4 Bd8 Bd6 Rb8 Bg3 Bc7 Qf8 Bb2 Qc8 Bbe5 Qcb7 Bf4 Qa8 Kc1 Rc3 Nd2 Rg1 Nb1 Rf1 Ne1 Rf3 Kd2 Rc5 Nd3+ Kg2 h1B+ Kh3 Ne1 Nd5 Ng2 Rfc3 Ne1 Nde3 Bf3 Qe5 Ng2 Qf5 Qd5 Qe4 Qb3
q1b5/3N2QR/q2K2pQ/rQBn3q/1qNrB2b/R3n3/2pn4/4kqNq w - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 g4 h5 f4 exf4 a3 bxa3 Bh3 hxg4 Bg2 Bc5 Bf1 Bf8 Kf2 Kd7 e4 Kd6 d4 b5 h4 f5 e5+ Kd5 h5 Ke4 h6 c5 d5 c3 h7 c2 d6 c4 e6 c3 d7 b4 e7 b3 e8Q+ Ne7 Qd6 b2 Qb6 f3 Kg3 f4+ Kh4 f2 Kg5 a2 Qb5 f3 Rh3 g6 Kf6 g3 Ke6 g2 Bg5 c1Q Rh6 c2 Qc5 Nd5 Ne2 Kd3 Be3 g1Q Bg5 Qd1 Qa5 Na6 Qb6 Ne3 Qf7 Nc7+ Ke5 Qh1 Na3 Kd2 Qg7 b1Q Ng1 Nd5 Bd3 f1Q Be4 f2 Be7 Qdh5+ Kd6 Ke1 Qb5 Ra5 Nc4 Rg8 h8Q Qb6+ Qc6 Qa6 Rh7 Qa8 Qh6 Bg7 d8N Bf6 Nf7 Rd8+ Qd7 Bh4 Nfe5 Qa6+ Nb6 Qa8 Q8g7 Qfa6 Bf8 f1N Nc4 Nd2 Be7 Rf8 Qb5 Rf4 Bf5 Rd4 Be4 Q6b7 Nd7 Qc1 Rb1 a1Q Rb3 Qab2 Ra3 Qb4+ Ke6 Qcd1 Bc5 Qdf3 Kd6 Qf1 Ra4 Qba7 Ra3 Qa6+
4n3/N2p1B2/bNn5/q2r1R1B/1r3NKn/2q2Qnn/3pR2Q/bnk1B1b1 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kf2 Ke7 Kf3 Kf6 c4 Kg5 g4 b5 e4 f5 c5 h5 e5 b4 c6 d3 c7 b3 e6 h3 e7 h2 e8N b2 Ra2 h4 Qa4 h3 Nf6 Nc6 Ne2 Ba6 c8B Rh4 Qb5 Bc5 Qb8 Qa5 Qa7 Bg1 Nbc3 b1N Nfd5 Nf6 Bb7 Ne8 Rb2 a2 Nf6 a1B Qb6 Rh5 Qc5 Rb8 Ba8 Rb4 Be3 d2 Nfd5 Kg6 Nb6 Kf6 Qf8+ Ke5 Bf2 Rg5 Be1 Rh5 Nc1 Kd4 N1e2+ Kd3 Rb3 Kc2 Nb5 Rg5 Ned4+ Kc1 Ne6 Rh5 Bc4 Rg5 Na7 Rh5 Ke2 f3+ Kf1 f2 Ke2 f1N Kf3 f4 g5 Ng3 g6 Rhb5 g7 Nf5 g8Q Nh4+ Kg4 f3 Nf4 f2 Re3 f1Q Re2 Rd5 Qh7 Qf2 Qff5 Qd4 Qe4 Qc3 Qf3 Bc5 Rf1 h1N Bb7 h2 Qh5 Bg1 Qh6 Rc5 Bf7 Ng3 Qh8 h1N Qh5 Nhf5 Qh2 Rd5 Ba8 Bc8 Bb7 Nh4 Ba6 Bb7 Bd3 Ba6 Bdg6 Ne4 Rff2 Ng5 Bh5 Nh3 Re5 Rdd4 Rfe2 Ng3 Rf5 Rd5
3B1b1Q/2bp2bq/R6q/1QN1nbR1/Bb6/p1r3b1/N1NQn1nk/2K4r w - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 g4 h5 f4 exf4 c3 dxc3 Qd6 hxg4 Qd5 Rh6 Qd1 Rh8 b4 Ke7 h4 Kf6 e4 Ke5 b5 a5 h5 g5 h6 f5 h7 c2 Kd2 a3 b6 f3 b7 Kf4 e5 Kg3 e6 f2 e7 f4 e8N a2 Qe1 f3 Nc7 a4 Qe8 a3 Bb5 f1Q Qe4 f2 Qc4 Nc6 b8Q Nf6 Qg8 Bb7 Be2 Nd4 Bf3 Qe7 Be4 Qa6 Rh6 f1N+ Ke1 Ne2 Qe6 Ne3 Kd2 Ng2 Bf3 Be4 Qg8 Bf5 Qb5 Rc8 Nh3 Kh2 Bd5 g3 Qb3 g4 Ba8 Ng1 Ne6 Rc3 Bb2 c1B+ Kd1 Qc6 Nc5 Bf4 Qg5 Bc7 Qd2 Qce6 Qb7 Qe3 Rg6 Qh6 Ng5 Rc4 Qa5 Nf3 Be5 Ngh4 Qaa6 Rg8 h8Q Qeh7 Bb2 g2 Rg7 g1B Nge6 g3 Nc3 g2 Qb4 Ng4 Nd4 Bf2 Rb1 a1B Nc2 Be1 Qba5 g1B Bc6 Bgf2 Na2 Bd2 Bc1 Bf6 Rb8 Nge5 Ba4 Bfe1 Qd6 Bb4 Rb6 Rc3 Ra6 Bf2 Rg3 Rg5 Rg1 B6g7 Qb5 Rg4 Bg5 Rf4 Rg3 Ng2 Rg4 Bg3 Kc1 Re4 Qd2 Re1+ Qd1 Rh1 Qe1 Qh3 Bd8 Q3h6+ Rg5 Ng1 Qd2 Ne2#
n3r1n1/1k4q1/1BRrQQ1R/1pK3B1/b2br1pN/2Q5/r2N1n2/r2q1R1n w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 d5 Kd3 Kd7 a4 Kc6 h4 f5 e4 g5 c4 b3 h5 b2 e5 f4 a5 f3 a6 f2 e6 f1N e7 Bg7 e8R Nd7 h6 Be5 h7 Nb6 a7 Bd7 Nd2 b1R c5 Rb4 Ngf3 g1Q Nc4 g2 Nh4 Ng3 Rh2 Nh1 Kd2 d3 Qb3 d4 Qc3 g4 Rh3 Qf6 Re6+ Kc7 c6 Qg7 Rd6 Qf1 Rg6 g1R Rf6 Kc8 c7 Ba4 Rc6 Qf3 Rb1 Re1 Ra1 Re4 Rb1 Rb5 Ra1 Rd5 Rb1 Rd6 Ra1 Rb8 a8Q Qf1 Qaa5 Na8 Qb6 Qf3 Qbb2 b5 Rb1 Kb7 c8Q+ Ka7 Qe6 Re8 Qa1 Kb7 Rh2 Nh6 Qab2 Rhf8 h8B Ng8 Ng2 Rf5 Rh6 Rh5 Ra1 Rh2 Rb1 Qg6 Bf6 Qg7 Bg5 Qf1 Qa1 Qf3 Ba3 Qf1 Bc5 Qe2+ Kc1 d2+ Kb2 d1R+ Ka3 d3 Kb4 d2 Nh4 Re1 Bg1 d1N Bb6 Ndf2 Kc5 Rc1 Nd2 Qd1 Qaa2 Rg2 Qf6 Rh2 Qae6 Rg2 Rb3 Ra1 Rb1 Nh3 Ndf3 Rga2 Nd2 N3f2 Rc1 Qf3 Rg1 Qd1 Rf1 Bd4+
2N1BB1k/1RNKnR2/3n2p1/1n4Q1/1q3nrq/b6p/4br1r/n2B1QRr w - - 0 1 legal: proof: d4 e5 f4 exf4 b4 c5 g3 fxg3 b5 gxh2 b6 cxd4 Bh3 axb6 Bg2 b5 Bf1 b4 Kd2 b5 Kd3 f5 e4 Kf7 a4 d5 c4 h5 a5 f4 a6 g6 e5 Kg7 c5 b3 e6 f3 c6 b2 e7 b4 e8R h4 c7 b3 a7 f2 Re6 Na6 Re4 Bg4 c8Q Nb4+ Kd2 d3 Kc3 d2 Kd4 Ne7 Kc5 d4 Re2 d3 Re1 Nc2 Nc3 b1Q Nce2 b2 Ng3 Be2 Qg4 h3 Nf3 Rh4 Bg2 f1R Nf5+ Kh8 N3d4 Rf2 Rhf1 h1R Qg5 Rg4 Ne6 Rh2 Ra3 Na1 Bc6 Rc8 a8B Rb8 Qb3 d1N Qb5 d2 Ra7 Ne3 Nd6 d1N Be8 Nc3 Bf3 Nc4 Rb7 Ncd5 Nc8 Nd6 Nc7 Nf4 Bd2 Qe4 Bb4 b1N Rg1 Nc3 Ref1 Ra8 Qd3 Ncb5 Qc4 Bd3 Bd1 Be2 Qc1 Ra2 Ba3 Rh1 Bb4 Ned5 Kc6 Rd2 Bc5 Qb4 Qb1 Qf6 Kd7 Ne7 Qd3 Qfc3 Qdf5 Qg3 Qb1 Qh4 Qc1 Nd3 Qb1 Rfh2 Rf7 Nf4 Qd3 Bg7 Qf3 Bb2 Qf1 Ba3 Bd4+ Kg8 Bg7 Kh7 Bh6+ Kh8 Bf8 Bc4 Bf3 Rdf2 Bd1 Be2
QQK1n3/2Qq4/2NqBN1r/bb2nr2/5pn1/2p2N1b/2q4R/bq1k1B1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 Ke7 e4 Ke6 Ke2 Ke5 Ke3 c5 a4 b5 a5 g5 h5 f5 d3 c3 a6 f4+ Ke2 Kd4 e5 c2 h6 c1Q h7 c4 e6 b3 a7 g2 e7 b4 e8Q b2 Ra5 g3 Kf3 b3 Qd2 g4+ Ke2 Nc6 Na3 b1B Qh5 b2 Ra6 Bb4 Ra4 Qd6 Qe1 Nf6 Qb5 Ne5 Qb8 Qc2+ Qd2 Rf8 h8Q Ne8 Ra5 Ba2 Nb1 Rf5 Nc3 b1Q Nd5 Bd7 Rb5 Ba5 Rb2 Bb5 Nf6 Qd7 Qc7 Rc8 Qb8 Rc6 a8B Ra6 Bd5 Bb3 Ng8 Rh6 Be6 B3a4 Nf6 Qd6 Nh3 g1Q Ng5 g2 Qg7 g3 Qgc7 Ng4 Kf3 Qh2 Ra2 g1B Qg2 Kc3 Ke4 Bd4 Nf3 Qd2 Rb2 Be5 Rc2+ Kb3 d4 Qh3 d5 Ba1 Qd7 c3 Qdc7 Qdc1 Kd4 Qcb2 Rf2 Q2c2 Rd2 Qd8 Kc5 Kb2 Re2 Kc1 Rf2 Kd1 Re2 Bb4+ Kb6 Ba5+ Kb7 Qd6 Kc8 Bb3 Qg1 g2 Qga7 g1N Qaa8 B3c4 Rf2 Bd3 Rfh2 Be4 Ng5 Bg2 Nf3 Qc5 d6 Qd5 d7 Qd6 Ne1 Nf3 d8N Nfe5 Nc6 Qhd3 Nf3 Bh3 Bc4 Q3d5 Bb3 Qf7 Be6 Qfd7+
1RqbQn2/1B2R3/2rpQ3/1Qppb3/b4b2/b1RN1NBq/2n5/rK2nk2 w - - 0 1 legal: proof: c4 h5 e4 f5 d4 fxe4 g4 hxg4 b4 c6 d5 cxd5 c5 Nf6 b5 Ng8 b6 axb6 Qd3 bxc5 Qe2 Ra3 Qd1 Ra8 Kd2 Kf7 Kc2 Ke6 a4 Ke5 h4 b5 a5 g5 h5 d6 f3 e3 a6 Kf4 a7 Kg3 h6 Kf2 f4 e5 h7 e4 f5 b4 f6 g3 f7 g2 Rh2 e2 Kb2 e1N Be2 e3 Bc4 b3 Ra5 g4 Ra4 g3 Nd2 e2 Ra3 Be7 f8R+ Nf6 Ra6 Nd7 Ne4+ Kf1 Re8 Ng4 Be3 Nf8 Ra4 Bd7 Bf2 Qc8 Nc3 Bd8 Qb1 Ne3 Kc1 N3c2 Nf3 g1B Ra3 g2 Bg3 Ba4 Na2 Bd4 Re7 g1B Ba6 Be5 Bb7 Rg8 Rh3 Bh2 h8Q Rg7 Qh6 b2+ Kd2 Rg8 Qe6 Rg7 Re3 Rh7 Re8 Rc7 Nc1 Rc6 Nd3 Bf4 Rh8 Be5 Re7 Bf4 Qa1 b1Q Qb2 Qa1 Qb5 Qc3+ Kc1 Be5 Bh4 Bhf4 Bg3 Qb3 Nb4 Qd3 Kb1 Qf5 Rc3 Qh3 Rc7 Ng2 Nd3 e1B Rd7 Bed2 Rdh7 Bc1 Re7 Ba3 Rg8 Rb8 a8Q Nge1 Qa7 Ra8 Qb8 Qc7 Qbc8 Qb8 Qcd7 Qc8 Qe8 Rb8 Ka2 Nd7 Q8g6 Bc7 Qc4 Qd8 Ba8 Ba5 Rge8 Nf8 Qa6 Rb4 Bb7 Qd7 Rc8 Bd8 Rb8 Qc8 Qgf7 Ne3 Ka1 Rb2 Qb5 Ra2+ Kb1 N3c2 Qe8 Ra1#
2r5/2b1nr1K/4B1Bp/N4b2/R3q1q1/NpqQb3/NRpBQ2r/n2b2k1 w - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 h4 g5 f4 gxh4 a3 bxa3 Qc2 exf4 Qa4+ Ke7 Qd1 Ke8 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Kd5 e4+ Kd4 g4 c5 d3 b5 g5 h3 e5 h2 e6 c3 e7 c4 e8B b4 g6 a2 g7 b3 Bc6 c2 Bb5 c3 Bd2 c1B Bc6 Na6 Qe2 Qh4 Bb5 Nb4 Be8 Qg4+ Kf2 f3 Qe1 f4 Na3 Nc2 Bg6 Bf5 Qe2 Rc8 Bh3 Ne7 g8Q Bg7 Qe8 Be5 Qb5 Bc7 Rb1 a1Q Rb2 h6 Qa6 Rhf8 Qb5 Rf7 Qa6 Kd5 d4 Qb1 Qed3 Na1 Ne2 c2 Rg1 h1R Rg2 Rh2 Qac4+ Kd6 d5 Ke5 d6 Qa2 d7 Qb1 Ra2 Qb2 d8N Qc3 Rb2 Rg7 Be1 Rf7 Nb7 Bd2 Na5 Be3+ Kf1 f2 Bd2 Qf3 Nc1 Qe4 Ke2 f1B+ Ke1 f3 Rg4 Be2 Na2 Bd1 Qb5+ Qd5 Ra4 f2+ Kf1 Qc6 Qe2 Qc3 Qbd3 Qe4 Bg4 Bd7 Be6 Kf4 Qa6 Kg3 Qed3 Bg4 Qac4 Bf5 Ke2 Kg2 Qb5 Kg1 Qe5 Qec4 Kf3 f1Q+ Kg3 Qe1+ Kf3 Be4+ Kg4 Bg2+ Qee4 Bh3+ Kh5 Bf1+ Bh3 Be2+ Qf3 Bd1 Qfe2 Rg2 Bg4 Bf5 Bh3 Qe4 Bg4 Qg3 Bh3 Bd7 Be6 Rh2+ Bh3 Ra8 Bh7 Ng8 Bf5 Qgh4+ Kg6 Rc8 Bg4 Rff8 Bh3 Ne7+ Kh7 Rf6 Bg6 Rf1 Be6 Qhg4 Bd5 Rf6 Bg8 Bf5 Be6 Rf7+
1k2B2r/1rn1B3/4n2p/3RRr2/ppb4N/1BbQ3n/3K1bnR/1q1Nr2Q w - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 g5 b5 gxh4 b6 axb6 Ra3 b5 Ra1 bxa4 f4 e5 c4 b5 g4 d5 g5 Kd7 g6 Kc7 g7 b4 f5 d3 c5 h6 f6 d4 c6 e3 f7 h3 Qb3 d2+ Ke2 d1R Qc3 h2 Qe1 e4 Qd2 Na6 Qd3 Be6 Ra3 Bc5 f8Q Rb8 Nf3 Ne7 g8B Nd5 Nh4 Rb7 Qf2 Kb8 Ra2 Ndc7 Ng2 Bc4 Nd2 Ne6 Ra3 Nac7 Qf3 Qd7 Ra1 Qh7 Nh4 Bb6 Bh3 Rf1 Nb1 Rf2+ Kd1 e2+ Kd2 Bc5 Qg2 Rf5 Nc3 e1N Nd1 Ba7 Qgf1 Ng2 Bg4 Bb6 Bh5 Bc5 Be8 e3+ Kc2 e2 Bg5 e1B Be7 Bf2 Kd2 Bd6 Ra2 Be5 Rg1 h1R Qe1 Ne3 Rg5 Ng2 Qee4 Re1 Qef3 Ne3 Qh1 Ng2 Rc2 Bb5 Rc5 Bc4 Rd5 Bf6 Rg3 Be5 Re3 Bg7 Ree5 Bf6 Qb3 d3 Nc3 Bb5 Bh5 Nef4 Be8 Rh5 Rd7 Na6 Re2 Bb6 Nd5 Ne3 Rh2 Neg2 Nc3 Bf2 Qc2 Qg6 Bb3 Bc4 Rd4 Ne6 c7+ Ka7 c8R Qh7 Rcd8 Nac7 R8d7 Kb8 R7d5 Qg6 Re4 Be5 Nd1 Bc3+ Kc1 Re5 Qe2 d2+ Kc2 Rg5 Ne3 Rh5 Rd3 Qf5 Re5 Qe4 Qef1 Rf5 Qe2 d1N Kc1 Bg3 Rdd5 Nf2+ Nd1 Nh3 Qf3 Bf2 Qe3 Ba1 Kd2 Qb1 Qd3 Bc3+
1n1K4/1npBrR1B/rb2Q3/1N1B2k1/3Rbn1N/1p1Q4/3Rpp1b/n2qr3 w - - 0 1 legal: proof: c4 d5 f4 dxc4 e4 a5 h4 e5 b4 exf4 h5 axb4 Bb2 g6 Bd4 gxh5 Bc5 h4 Be3 fxe3 Ke2 Ke7 Kf3 Kf6 Kf4 h5 d4 b5 g4 b3 a4 b4 d5 b2 a5 c3 d6 h3 a6 h4 d7 c2 a7 c1B Ne2 b3 Ra6+ Bd6+ Kf3 h2 e5+ Kg5 Ke4 f5+ Kd5 h3 Ke6 f4 Nd2 b1N Nd4 e2 Ra4 f3 Nb5 f2 Rd4 Ne7 Rg1 h1R Nf3+ Kh6 Qd3 h2 Kf6 Bb7 e6 Na3 Nh4 Nc2 Bh3 Nc8+ e7 Rh7 g5+ Kh5 g6 Na1 g7 Be3 g8B Be4 Rg6 Re1 Rg7 h1N Rf7 Bh2 Be6 Rg7 Bh7 Nd6 Bh3 Nb7 Ke6 Qh8 d8R Ng3 e8Q Kg5 Ke7 Nh5 Qc6 Nf4 Bd7 Rg6 Qcc4 Ra6 Qe6 Qe5 Rd6 Bb6 Rd4 Qc5+ Ke8 Qc2 Ke7 Nc6+ Ke8 Rc8 a8B Nb8 Ke7 Na5 Bd5 Nb7 B7c6 Qb1 Rd6 Rg8 Bd7 Rg7 Ke8 Na5 Kd8 Qd1 Rf6 Re7 Rf7 Nc4 Rc6 Na5 Rc2 Bg1 Rb2 Bh2 Rd2 Nb7+
q1B4n/1b6/Rb5b/p1k1qRQK/1p4nB/BQ4Qp/1Nrp2n1/n1r2N2 w - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 g5 b5 gxh4 b6 axb6 a5 bxa5 Ke2 b5 f4 d5 g4 Kd7 c4 Kd6 f5 h5 g5 e5 f6 e3 Kf3 b4 g6 d3 f7 h3 g7 e2 Qe1 h2 Kg3 h4+ Kf3 e4+ Kf4 d4 Ra2 h3 Nf3 e3 Bg2 d2 Qf2 d1Q Qe1 d3 Nc3 d2 Ba3 Bb7 Kg4 Nh6+ Kh5 Na6 g8Q Nc5 Na4 Nb3 Qg5 Qa1 Nb2 Rc8 Rf1 h1N Nh2 Nf2 Bf3 Rc5 Bg4 Qa8 Bc8 Nfg4 Rf5 Rc7 Qeh4 e1N Nf1 e2 c5+ Kc6 Qf2 Ng2 Qg3 Bg7 f8B e1B Be7 Bf2 Bd8 Re8 Bf6 Re1 Bd8 Kb5 c6+ Bc5 Bf6 Nf7 Bd8 Bh6 Bf6 Rd7 c7 Rc1 Bd8 Rc2 Be7 Qe1 Ra1 Qe2 Re1 Na1 Bd8 Qe8 Re6 Nh8+ Rg6 Qe5 Ra6 Bb6 Qb3 Nh2 Qgg3 Rc1 Bh4 Kc5 Ne3 Kd4 Nf1 Qb5 Qg5 Rg7 Bd7 Ng4 c8Q Qe5 Qc6 Rg6 Qcf3 Rgc6 Qg3 R6c2 Bc8 Kc5
1n2KN2/r2B3Q/5qp1/1bk3pn/2np1RB1/2b1r1NR/2p2qq1/R1Q1nB2 w - - 0 1 legal: proof: c4 c5 d4 cxd4 b4 e5 f4 exf4 g4 a5 g5 axb4 g6 hxg6 Bb2 g5 Bc3 bxc3 Kf2 Ke7 Kf3 Kd6 Ke4 b5 Kf5 d3 a4 d2 e4 f3 h4 c2 a5 b4 e5+ Kc5 h5 d5+ e6 b3 h6 d4 a6 f2 a7 b2 h7 Nf6 Nh3 Nh5 Nf4 Bd7 Ng6 Bb5 Qc1 d1N Nd2 b1N e7 Na3 e8B Nb2 Rh3 Nd3 Bd7 Ne1 Ke5 f5 Ke6 f4 Kf7 Bd6 Nf8 Qf6+ Ke8 Rg8 h8Q g6 Qh7 f3 Qd1 Bc7 Qc1 Ba5 Ne4+ Kb4 c5 Nc4 Be2 f1Q c6 f2 c7 Qg2 c8B f1Q Ng3 Q1f2 Bd3 Kc5 Bf1 Nc6 Bg4 Bc3 Bd7 Rg7 Bg4 Rb8 a8R Ra7 Bd7 Rb6 Bg4 Rba6 Bcd7 Ra3 Rb8 Rb3 Rb6 Nb8 Re6 Bd2 Re4 Rd3 Rf4 Bc3 Qb2 Rf3 Qc1 Re3+
krr5/2p1N1Nb/2n1B2Q/2rnp2B/1b2N2p/3p4/rbpQ1RBq/3R3K w - - 0 1 legal: proof: c4 b5 h4 d5 e4 dxc4 a4 bxa4 d4 e5 h5 exd4 e5 f6 e6 g6 Bd2 gxh5 Bf4 h4 Be5 fxe5 f4 a5 Kf2 h5 b4 c3 g4 h3 g5 d3 e7 Kd7 e8B+ Kd6 b5 h2 Kg2 a3 g6 a2 f5 c2 g7 a4 b6 a3 f6 Bf5 f7 Nf6 g8B Bh7 b7 Nd5 Nf3 Ra5 Ng5 Nc6 b8N Rc5 Ne6 Qh4 Nc3 Qf4 Rg1 h1R Qd2 h4 Rd1 a1R Ng7 Be7 f8Q a2 Bh5 Qh2+ Kf3 Rb1 Be6 a1B Rg2 Bb2 Rf2 Rg8 Qff4 Rc8 Bg2 Ra1 Qh6 Ra2 Nd7 Re1 Nf6 Re4 Ng8 Rb4 Bhf7 Rbb8 Bh5 Na5 Ne4+ Kc6 Beg4+ Kb7 Be6 Bd6 Ne7 Nc6 Bgh3 Qf4+ Kg2 Ka8 Kg1 Rca5 Kh1 Bb4 Bf1 Rc5 Bg2 Qh2+
1KN1n2B/2q4B/qn3nB1/2Qbr1bB/4rBR1/5qR1/1kn3qb/2nb3N w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 Ke7 e4 Kd6 c4 Kc5 h4 Kb4 h5 b5 c5 g5 h6 d5 h7 f5 c6 g3+ Kf3 g2 e5 g4+ Ke2 g3 Kf3 d3 c7 d2 e6 a2 e7 d4 e8B d3 Ne2 g1B Bg2 Be7 Bh3 g2 Bh5 Bh2 Qf1 Kb3 Qf2 d1Q Be3 g1N+ Kg2 d2 Na3 b4 Bf7+ Be6 c8B Ra5 Qg3 f3+ Kf2 f4 Qg4 Nf6 Rc1 a1N Qg7 Ne8 Rc2 Bg5 Bb6 Qc7 Bf5 Bd5 Nb5 Nd7 B7g6 Ndf6 Ng3 Ne2 Na7 Nc1 Rc4 Kb2 Qf8 b3 Qc5 Nc2 Rg1 Ra4 Rc3 Re4 Nh1 Rg8 h8B Rg7 Bh7 Rge7 Rg4 R7e5 Ng3 Qh1 Bfg6 d1B Bd7 Na3 Ba5 Nc4 Nc8 Nb6 Bdf5 Rb4 Bd3 Rbe4 Be2 Qg2+ Ke1 f2+ Kd2 f1Q Nh1 Qff2 Rcg3 Qff3 Bc3+ Ka2 Bd4 b2 Be3 b1Q Kc3 Qb5 Qc4+ Ka1 Qc5 Qff2 Bd2 f3 Be3 Qff1 Bf4 f2 Bf3 Qa6 Be2 Nc4 Kb4 Kb2 Bf3 Qd3 Be2 f1N Bf3 Qad6 Kb5 Nb6+ Ka5 Qb3 Ka6 Ne3 Be2 Nc2 Bf3 Qcc6 Ka7 Qe6 Be2 Qbf3 Kb8 Qe7 Bh5 Qb5 Bd3 Qa6 B7g6 Rc4 Bdf5 Rce4 Bh7 Qd8 Bfg6 Qc7+
qNbRb2B/2B1n3/Q1p1r3/R2B3q/1b2rB2/2q2bq1/1br5/KN2nBk1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Ke6 Kd2 Kf5 Kc2 Ke4 Kb2 f5 h4 b5 a5 g5 h5 b3 d5 c6 d6 g3 a6 g4 h6 g2 e3 g3 d7 b4 h7 f3 a7 f2 Ra4 c3+ Ka1 c2 Qh5 f4 Ra2 f3 Ra4 b2+ Ka2 Ne7 Qh6 Na6 Ra5 b3+ Ka3 Nc5 Qd6 Nd3 Rah5 Ne1 Bb5 f1Q Qf6 f2 Rh6 Qc4 Qg5 f1B Qg7 Qc3 R6h3 Be2 Nf3 g1R Rh5 g2 Ne5 Bf3 Bf1 Qe8 Bd2 c1B d8B Qf7 Rf5 Qh5 Nd7 Rb8 a8Q Rb4 Qa4 Rg8 Qh8 Rg6 Nb8 Re6 Ra5 Rc4 Rh3 Rh1 Rg3 g1Q Rg8 Qg3 Bc7 Rh2 Qf6 Re2 h8B Kd3 e4 Rd4 e5 Re4 Qb5+ Kd4 Bg5 Rc2 Bh4 Ke3 Qa6 Kf2 Bg5 Kg1 Bf4 Bg7 Rd8 Bf8 Qg7 Be3 Nd2 b1Q Qf6 Qd1 Nb1 b2+ Ka2 Bc1 Qg7 Qdd4 Qf6 Qa7 Qg7 Rg6 e6 Qa8 Qe5 Nf5 e7 Re6 e8B Bb4 Bf7 Ne7 Qeb5 Qd3 Na3 b1B+ Ka1 Qe3 Qe5 Qd2 Qb2 Qc3 Bg8 Ba2 Bfe5 Rg6 Nb1 Bf7 Bf4 Be8 Ba2 Rge6 Bd5 Bxb2+
K2rRr1n/2N3rb/1b6/bb1RpB2/3p2Br/B5bp/1q3Nnk/3QBB2 w - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 Kd2 Kf7 g4 Kf6 c4 Kg5 c5 Kf4 c6 h5 g5 e5 f3 Kg3 g6 d5 f4 b5 c7 e3+ Kd3 h3 f5 h4 g7 h2 f6 h3 f7 b4 Be2 b3 Qc2 a2 Qc6 b2 Bh5 e2 Nf3 e1B Qb7 Nh6 g8B Ng4 Ng5 Bfb4 f8B Nc6 Bh7 Ba5 Ne6 Ne7 Bfh6 Ng6 Qb6 Bd7 c8B Ne3 Nd2 Ng2 Ba6 Qb8 Qb3 b1B+ Qc2 Qb2 Bg4 Rac8 Nc7 Rcf8 Be3 Bf2 Rd1 h1R Ne4+ Kh2 Bed2 Rg1 Be1 Bg3 Nf2 Be8 Bc4 Bb5 Rd2 Qb4 Ba3 Qb2 Bg8 Rh6 Bh7 Nh8 Bhf5 Bb6 Ke2 d3+ Kf3 Rh4 Qd1 Bc2 Rc1 a1B Rb1 Qc1 Rb4 Qb1 Ra4 Qc1 Ra8 Qb2 Re8 Bb1 Rc2 d2 Bf1 Ba5 Rc5 Bb6 Qc2 d1R Qc1 d4 Rd5 Rd2 Qd1 Rc2 Ke4 Rc6+ Qd3 Rd6 Qc2 Rd8 Qd3 Ba2 Qd1 Bb3 Rd6 Bc2+ Kd5 Bbd3 Kc6 Bb5+ Kb7 Bcd3 Be6 Bh7 Bd7 Qb3 Bde6 Bc3 Bef5 Bca5 Rd5 Qb2 Rc5 Ne3 Bh5 Bf4 Rd5 Rg7 Bf3 Bg3 B3g4 Rdd7 Kb8 Ng2 Ka8 Rd8+
1N3NK1/1b1n4/p2nqN1R/2qBN3/r4p2/2bnR1r1/2Qpp3/1rB1Nqk1 w - - 0 1 illegal: No possible last move
1Qnr4/nR2q1Bq/4k3/1B2brR1/4p1n1/nNRp1N2/n3b1B1/2qR3K w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 h4 fxe4 b4 a5 h5 axb4 c3 bxc3 h6 gxh6 Qd3 h5 Qd1 h4 g4 Kf7 f4 h5 Kf2 d5 Kg2 e5 b6 e3 b7 e4 f5 d3 g5 d4 f6 h3+ Kh2 c2 g6+ Ke6 f7 d2 g7 d3 Ra3 h4 Ra1 e2 Ra2 e1N Ra5 Qe7 Ra7 Rh5 Qf3 d1Q Qg3 Rf5 Qf3 Nc6 Bd2 c1N b8R Nc2 Qg3 Na3 Rb3 Na2 Rab7 Na7 Rc3 Qc1 Bg2 Bd7 Nf3 Rd8 Rg1 Be8 Kh1 h2 Re1 Ba4 Rg1 Bd1 Bh6 Be2 Re1 Nf6 g8B Nd7 Qc7 Nb6 Qb8 Nbc8 Nbd2 Bg7 Nb3 Bd4 Bg7 Be5 Bh3 Qcg5 Rd1 Qc1 Kg2 h1N f8R+ Qf7 Kg1 Nf2 Bg2 Ng4 Kh1 h3 Re8+ Kd5 Re6 h2 Rg6 Qe6 Rg5 Qf7 Bh7 Ke6 Bg6 Qe7 Be8 Qe3 Bb5 Qc1 Bf1 Nf6 Kg2 h1Q+ Kf2 Nc2 Bg2 Qh7 Kg1 Ng4 Na1 Bh2+ Kh1 Na3 Nb3 Be5+
R3Bb2/4K1nB/2pQ1N2/1Rqr2R1/rnk2b1p/5pR1/nb3b2/NB3q2 w - - 0 1 illegal: No possible last move
k5BR/n5b1/2q2r2/pp3N2/4Bn1R/1nbNq1Qp/pnR2KB1/2B3r1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 b5 a4 bxa4 c4 g5 b5 gxh4 b6 cxb6 c5 Ba6 d3 Bc4 dxc4 b5 f4 d5 g4 Kd7 f5 Kc8 c6 e5 c5 a5 c7 Kb7 c8R h5 g5 d4 f6 h3 f7 h4 g6 e3 g7 e2 Ba3 h2 Nf3 e4 Nfd2 h3 Bg2 d3 Nb3 d2+ Kf2 e1B+ Ke2 Ne7 g8B Ra6 c6+ Ka8 c7 Nd5 Nc1 e3 Ra2 Bg7 f8Q Rf6 Rf1 h1Q Qb3 d1N Qe7 Nb2 Rf4 Bc3 Nd2 Rh5 Rb4 Rg5 Ne4 Nf4+ Kf3 e2 Ng3 e1N+ Kf2+ Qd5 Nd3 Nf3 Qe3 Nd4 Nf5 Rg4 Be4 Rg1 Re8 Qc6 c8B Qd5 Qg3 Nbc6 Rf8 Qd6 Qe6 Nb3 Bb7+ Ka7 Bg2 Qc5+ Qee3 Qd4 Bf1 Qe4 Bg2 Qe8 Be4 Kb8 Bg2 Na7 Bbe4 Qc8 Bh7 Qe8 Rh8 Qc8 Bg8 Qc6 Rc4 Ka8 Rb4 Nc4 Bc1 a3 Rd2 a2 Rc2 Nb2 Rc4 Qcd5 Rc7 Qc6 Rf7 Bf8 Rfh7 Bg7 Rh4 Qxe3+
1rQbn1KR/2B1n2R/1B2R3/2b2q2/4N2R/3nbqBN/b3rbr1/2qq3k w - - 0 1 legal: proof: e4 h5 b4 f5 d4 fxe4 g4 hxg4 a3 c5 b5 cxd4 b6 axb6 Bh6 b5 Bc4 b4 Ba2 b3 Bc1 bxa2 Ke2 Kf7 c4 Kf6 f4 Kf5 h4 d5 c5 e5 a4 b5 h5 g5 h6 g3 a5 Kg4 a6 e3 Kd3+ e2 a7 g2 f5 Kg3 f6 e1B f7 g4 c6 e4+ Kc2 d3+ Kb3 d4 h7 d2 c7 e3 Nc3 b4 Kc4 b3 Ba3 e2 Nh3 g1B Bd6+ Kg2 Kd5 g3 Nb1 b2 Qa4 d1Q Nd2 b1Q Ng5 d3 Qd4 Bef2 Qg4 e1N Nf1 d2 Qd7 Qf6 Nh3 Qff3+ Ke6 Ne7 Bc5 Na6 Bb6 Rb8 a8R Nd3 Ra7 Qdc1 Rb7 d1Q Nd2 Bh6 f8B Bhe3 Ne4 Qb5 Bh6 Re8 h8B Qbh5 Rb1 a1B Bf4 Bf6 Rb4 Qf5+ Kf7 Bc5 Rc4 Bce3 Rc6 Bg5+ Bf6 Bc5 Qd8 Be6+ Kg7 Bd5 c8R Ba2 B6e5 Nc7 Re6 Bfe3 Qd7 Bgf2 Rd8 Bh4 Qc8 Bg5 Re1 Kh2 Rh6 Kg2 Rh4 Kh2 Re2 Kh1 Bd6 g2 Bg3 g1R Re1 Ncd5 Bdc7 Nf6 Re2 Rg2 Ra7 Ng6 Rb7 Re6 Rdh8 Ne8+ Kg8 Bd8 Rd2 Nb2 Rd6 Re5+ Re6 Nd3 Nd2 Beg5 Ra7 Re2 Ne4 Bge3 Bcd6 Rh2 Rah7 Rg2 Bdc7 Ne7+
2n3R1/r1R4r/1RN3b1/1q1nq2B/r3N1q1/1b3n2/k1bbKRB1/1r1Q2Br w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 g4 Ke7 e4 Ke6 c4 f5 g5 b5 c5 h5 c6 d5 c7 f3 g6 b4 g7 f2+ Ke2 h3 e5 h4 Bg5 h2 Kd2 b3 Ba6 f1N+ Ke1 f4 Bb7 a2 Nc3 f3 Rb1 a1R Nh3 d3 Bd2 b2 Ba6 d4 Ne2 Kd5 e6 Ne3 e7 Qe8 Bb5 R8a7 Qc2 Nd7 Nhg1 h3 Nc1 Ne5 Ba5 d2+ Kf2 d1Q Bc3 d3 Nge2 d2 Qf5 Be6 c8B Rh7 Rf1 h1B Bd4 h2 Re1 R1a4 Bbd7 Kc4 Nd3 Kb3 Qh5 Ka2 Bc6 Bc4 Rc1 b1R Rf1 Bb3 Bg4 Qb8 e8R Bb4 Bd5 Ne7 g8R Nc8 Re6 Qd6 Be4 Nd5 Rc7 Bg2 Ng3 h1R Bc5 Qe7 Rb6 Bh3 Be6 Bf5 Bf7 Qe6 Qg4 Bc3 Bh5 Bg6 Nf5 Ba5 Ne7 Bc2 Nc6 Qe8 Kg3 f2 Bg2 Qe2 Qf3 Qe4 Qd1 Nf3 Be3 Bc3 Nc5 Q8e5+ Bf4 Q4f5 Ne4 Ba5 Re1 f1Q Re2 Ng5 Rf2 Qb5 Rf1 Bc3 Kf2 Qg4 Bh2 Nf3 Bg1 Bb3 Qe1 d1B Qd2+ Bdc2 Qd1 Rc4 Ke2 Bd2 Rf2 Rca4+
6q1/qn1B1R1K/1B1R1Nn1/n3rn1R/1r4bb/3bnb1B/3n1R2/Q1n1k1N1 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 g4 h5 e4+ d3 g5 d5+ Ke5 b5 g6 f5 c3 a2 g7 h3 Rh2 h4 Rf2 f3 Kf4 h2 e5 h1N e6 d4 e7 h3 Kg5 b4 Kg6 f4 e8B h2 Rg2 b3 Qd2 f2 Be2 f1N Ba3 b2 Bd7 f3 Be8 f2 Nf3 Bg4 Qc2 Ra4 Be7 Rb4 Qd1 Nd2 Qe1 f1N Bc6 Ne3 Bf1 Na6 Nh4 Ng3 Nf5 h1B Qd1 Rh5 Qc2 Nc5 Bd7 Ne2 Bh4 Nc1 Bf2 Nb7 Qa4 Be7 Nh4 Nf5 Nf3 Bh4 Ng1 Qb8 Rh2 Qa7 Bh3 Bhf3 Rh1 Rg5+ Kh7 Nge7 g8R Ng6 Qa6+ Kb3 c4 Kc2 Nc3 b1B Ne4 Kd1 c5 Bc2 Rb1 a1N c6 Nab3 c7 N3a5 Rb2 Bb1 Be3 Ke1 c8R Ndc4 Qf6 d2 Bf4 d1N Be3 d3 Bb6 d2 Qg7 Bg3 Bg2 Nd4 Rc6 Nde3 Rh5 d1Q Rf8 Qb3 Rd6 Bd3 Rf2 Bh4 Bh3 Nd2 Qe5 Qc4 Nf6 Qc8 Rf7 Qe8 Qe6 Re5 Qa2 Ndf5 Qa1 Qg8+
2Q2nRq/3nn1Rr/br1nb2B/nk6/RN3qNp/1R1r1B2/4nK1b/B7 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 h6 g4 Qb6 g5 hxg5 Na3 Qc7 Nb1 Qd8 h5 Rh7 Qd3 Rh6 Qg3 Rh8 Qh4 gxh4 a4 d5 c4 Kd7 e4 Kc6 a5 b5 c5 g5 h6 f5 h7 f3 a6 b3 e5 b2 a7 d3 e6 f4 e7 f2+ Kd2 d4 e8Q+ Nd7 Ra3 g4 Rh2 g3 Rh3 g2 Re3 b4 Ne2 g1N Ra2 f3 Kd1 d2 Rc3 b3 Ra5 Nh3 Rd3 Ne7 Nec3 Nf4 Ne2 Nfg6 Nf4 Rb8 a8R Rb6 Ra2 Kb5 Be2 f1B c6 f2 c7 Bh3 Bh5 Be6 Ke2 d1N Nh3 f1Q+ Kd2 Nf2 Bd1 Ba6 Re3 d3 Rg3 Ne4+ Ke3 d2 c8R Nd6 Bf3 d1R Ra7 Qc4 Nf2 Rd3+ Ke2 Qf4 Ra4 Bh6 Rca8 Nf8 Ng4 Bg7 Rh3 Be5 Kf2 Qc8 Be3 Qc3 Qc8 Qcd4 Nd2 b1N Ne4 b2 Nef6 Na3 Nd5 b1N Nb4 Nc3 Rb7 Ne2 Rc7 Rg8 h8B Nac4 Bg7 Rh8 Bh6 Qd5 Bd4 Na5 Ba1 Rh7 Rg3 Qde4 Rc3 Qf6 Rb3 Qh8 Rg2 Bh2 Ra7 Neg6 Rb7 Qf4 Rc7 Nde5 Rg7 Ne7 Rg8 Ne5c6 Ne5 Nb8 R2g7 Nbd7 Ng4 Bf7 Raa3 Bd5 Ra4 Be6
Nn1q2Q1/8/2pRRnnn/1nn1bN1k/B4q1N/1r3bK1/B2rNB2/2b3b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 d4 f5 e4 Kf7 h4 Kg6 e5 g3+ Kg2 g4 e6 c3 e7 b3 e8N c2 a5 c6 a6 b4 a7 b2 d5 b3 d6 Kh5 d7 Ne7 Nh3 f3+ Kg1 f2+ Kg2 f4 Nd2 b1N Nc4 b2 Ra3 Nc3 Qd6 b1N Be2 f1N Ra5+ Ncd5 Nb6 Na3 Bd1 Bg7 Ng1 Nd2 Ne2 Ne4 Be3 c1B Ba4 Ng6 Rd1 Be5 Bf2 Ndf6 Qd2 Rf8 Nd6 Nb5 Nf5 Nc5 Qe3 Rg8 Rd6 Re8 Bb3 Ba6 Ba2 Rg8 Ra4 Re8 Re4 f3+ Kf1 Bc8 Qf4 g2+ Kg1 Re7 Kh2 g3+ Kh3 g1B Re3 g2 Kg3 Qf8 d8Q Rb7 Qe8 Qe7 Qg8 Qd8 Re4 Be6 Re3 Bd5 Re4 Nba6 Re3 Rc8 a8B Nb8 Re4 Rd7 Bb7 Rcc7 Ba6 Rb7 Na8 Rb6 Bd4 f2 Re3 Bf3 Re4 Na7 Bb5 Rbb7 Ba4 Rb3 Be3 Nb5 Bd4 f1Q Bf2 Qe1 Re6 Rd2 Rd4 Ba3 Rdd6 Bc1 Nc3 Qe4 Ne2 Qe3 Kh3 Bh2 Nfd4 Nfe4 Qg4+ Kh6 h5 Nf6 Qe4 Kg5 h6 Kh5 Qf4 Bd5+ Nf3 g1N+ Kg2 Nh3 h7 Bg1 Kg3 Ng5 h8N Nf8 Nf7 Ng6 Nh6 Nf7 Nf5 Nh6 Nc3 Qe2 N3h4 Bf3 Rd4 Qe4 Ne2 Qe3 Rdd6 Qxf4+
2r1qr2/n2nB3/1Rn3NN/1n1n1B2/1NNk3b/p2B3R/4K1rp/3nnb1Q w - - 0 1 illegal: No possible last move
r4q2/2nnBbBq/b1B2r1R/3n2Kp/4r3/p4NN1/1R1q3Q/NNk1b1n1 w - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 h4 g5 f4 gxh4 c3 dxc3 Bd2 exf4 Be3 Bb4 Bc1 Bf8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 e4 a5 b4 f5+ Kh5 d5 g4 c2 b5 h3 g5 h2 b6 d4 g6 a3 g7 d3 b7 Kd4 e5 f3 e6 f4 e7 d2 e8N Ke3 Be2 f2 Nc3 f1Q Bf3 a4 Nce2 a2 Nc3 a3 Rb1 a1N Ne4 Nb3 Nf2 Ne7 g8N Nd5 Nd3 Nd7 b8B Nbc5 Nh6 Ne6 Kg4 Nec7 Rb4 Ba6 Rb3 Bb4 Bb2 c1N Bg7 Ne2 Nd6 Re8 Rb2 Re4 Qc2 d1B Nc1 Be1 Nb3 Qf2 Nb5 Qf8 Kg5 Qg2+ Bg4 f3 Na1 f2 Nf3 f1R Nc3 Ng1 Nb1 Qd2 Bh3 Bde2 Bg2 Bec4 Nf5+ Ke2+ Kh5 h6 Ba7 Ba2 Bc5 Bb3 Be7 Ba2 Qc3 Kd1 Qe5 Kc1 Ng3 Rf2 Bf1 Bb3 Bb5 Ba2 Bc6 Bb3 Nh4 Rf6 Nf3 Nh3 Rg1 h1Q Rg2 Ng1+ Rh2 Rd4 Qe2 Re4 Rh4 Qh3 Qh2 Qf5+ Ng5 Qh7 Nf3 Bbc4 Rg4 Nc3 Rg5 Bf7+ Rg6 Re5+ Kh4 h5 Rh6 Re3 Kg5 N3d5 Bb5 Qhh8 Ba4 Qh7 Bc6 Re4+
bkqnn2b/2N1N3/1rr3B1/B1bQ2R1/1rn2N1p/n1nK1p2/4R3/3Rb1R1 w - - 0 1 legal: proof: d4 e5 b4 a5 h4 axb4 f4 exf4 h5 c5 h6 cxd4 g3 fxg3 Rh2 Qh4 Rh3 Qxh6 Rh1 Qh2 Kd2 Kd8 c4 Kc7 a4 h5 c5 d5 a5 b5 a6 g5 c6 f5 a7 b3 Bb2 h4 Bh3 g2 e4 f4 e5 f3 e6 g4 e7 g3 e8R d3 Bf6 d4 Bg5 b4 Ne2 g1B Re4 g2 Bf6 b2 Qc1 b3 Ra6 Bb4+ Nec3 Bb7 Na3 b1R Qb2 Rh6 Bc8 Qh3 Qc1 b2 Bg7 Nf6 Rg4 Ne8 Ke1 d2+ Kd1 Bh2 Kc2 g1B Qe1 d1N Qe6 Ne3+ Kd3 Be5 Ne2 Be1 Nf4 Nc4 Qd5 Rd6 Bf8 Bh8 Ra5 Rc1 Rb5 b1N Bf5 Rf6 Bb4 Be3 Ke4 d3 Bg6 d2 Rgg1 d1N Kd3 Qc8 Ba5+ Bb6 Rb2 Ndc3 Re2 Rc2 Rg5 Rb2 Rhg1 Rb4 Nc2 Nba3 Nd4 Na6 Nf5 Rb8 Ne7 Nc5+ Kd4 Ne6+ Kd3 Bg3 Rd1 Be1 Rg1 Nd8 Rg5 Qe6 Rg1 Rc8 a8N+ Kb8 Rg5 Bc5 c7+ Ka7 Rg1 Rb8 Rg5 Qc8 Rg1 Rc6 Rg5 Qh3 c8R Qe6 Nc7 Ba8 Rg1 R8b6 Rb8 Nb7 Rd8 Qc8 Rd6 Kb8 Rde6 Rb1 R6e5 Nd8 Reg5 R1b4
qB1B1Kb1/2p1Rp2/2Bn1NNb/kb1q1rNq/2R2b2/8/1N1nb3/1b3r1Q w - - 0 1 illegal: No possible last move
1K6/N3qN2/1N1p1Rb1/R1n4k/b2prRbr/2n1n2Q/B2B3N/2b1nq1n w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kd2 d6 Kd3 h5 Ke4 f5+ Kd5 Kf7 e4 Kg6 c4 b5 g4 a2 e5 b4 c5 f3 g5 f4 e6 b3 e7 b2 e8N f2 c6 h3 c7 h2 Qf3 h4 Qg2 f3 Qg4 h3 Qd7 Na6 Kc6 Rh4 Nd2 b1B Ng7 Nf6 Bc4 f1N Nf5 f2 Ngf3 Ne4 Nh6 Kh5 g6 Nac5 g7 Nc3 g8R Bd3 Rhg1 h1B R8g6 h2 Qh3 Bg4 Nf7 Bh6 Rf6 Bg6 c8N Qf8 Na7 Re8 Kc7 Re1 Rg3 Qe7+ Kb8 Re3 N3e5 Bc6 Ndf3 h1N Nd7 Re4 Nb6 Bd2 Bb3 Ne3 Nh2 f1Q Rgf3 Be8 R3f4 Bed7 Rb1 a1N Bd5 Be8 Rb5 Nac2 Ba2 Ne1 Ra5 Ba4 Ba3 Nb5 Bb4 Bc1 Bd2 Nc3
n1B2br1/3p1qR1/5N1r/2Nb2nr/1Q1Rn3/1B1K1p2/1k1rBq2/R1r3Rn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 c4 Nf6 e4 Ra6 h4 Kd6 a4 Kc5 a5 b5 e5 g5 h5 g2 h6 d3 h7 Kd4 c5 b3 e6 b2 e7 b4 e8R g3 c6 g4 c7 b3 Re3 Qe7 Re1 Bb7 c8B Bd5 Nc3 b1R Rh4 b2 Nh3 g1R Qb3 g2 Re2 Rc1 Nb1 Rc2+ Ke1 d2+ Kf2 d1N+ Ke1 Nf2 Nf4 g3 Qa2 Nh1 Nd2 Kc3 Re6 b1R+ Ke2 Rbc1 Qc4+ Kb2 Nh5 Rc6 Ree4 Na6 Kd3 Nc7 Rd4 Na8 Nb3 Ne4 Nc5 f5 Be2 f4 Rg4 f3 Qa4 Rg8 Rg5 Rcg6 Nf6 Rh6 Rg6 Qf7 h8R Rg7 Rh7 Rg8 Ne8 Rh5 Rg5 Rg6 Rg4 Ra6 Rg8 Rah6 Nf6 Rgf1 Qc4 g1N Rg6 g2 Qb4+ Bb3 Rg5 Nh3 Rg8 g1Q a6 Qf2 a7 Rg1 Rg4 Nb6 a8B Rg3 Bd5 Na8 Rf4 Rgg5 Rg4 Rg8 Rg1 Nhg5 Rg7 Qe1 Bc6 Qg3 Ba4 Qf2 Qe1 Be6 Bb3 Bd5 Qb4 Rd2+
b3r3/1r4p1/qpN5/1RbbN1R1/3N2qb/2r2Bp1/Q1R1b1Nk/1K3Bnn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kc1 Kf6 c4 Kg5 h4+ Kf4 e4 d5 a4 f5 h5 d3 c5 b3 a5 d2+ Kb2 d4 c6 g2 a6 Kg3 h6 d3 e5 f4 h7 f3 c7 f2 a7 Nh6 e6 Bc5 e7 Qd4+ Nc3 Nd7 e8B Ne5 Qb1 d1B Qc2 d2 Qf5 Nf3 Rc1 Be2 Ba4 d1B Qf6 Be6 c8N Nf5 Qf7 Re8 h8N Bd5 Ne7 Rac8 Kb1 b2 Nh3 g1B a8R Bh2 Bc2 Ng1 Nc6 Bef3 Nf4 Bde2 Rb8 Qa4 Bg2 f1Q Bd1 Qa6 Bh3 Qg2 Nb5 Rc7 Rc2 b6 Rd8 Rb7 Nhg6 Bfe4 Rd6 Qf3 Bf1 Qg2 Nd3 Kh3 Nh4 Ng3 Rg6 B4f3 Nbd4 Bfe4 Rc3 B4f3 Kc2 b1R Rg5 Rb3 Nde5 Ra3 Rc4 Rc3+ Kb1 Bde4+ Bc2 Re3 Bd3 Ba3 Nd7 Bf8 Re5 Rc7 Nb4 Ba8 Be4 Rb7 Rb5 Bc5 Rc2 Rc3 Bc6 Be4 Qa2 B4f3 Ne5 Be4 Bd7 Bd5 Be6 Nf3 Rg1 Nh1 Bc8 Bg3 Nbc6 Kh2 Bf5 Qh3 Be4 Be1 Rg3 Ng1 Ng2 Bf2 Rf3 Bh4 Rf5 g3 Rg5 Qf5 Bf3 Qg4
1B3k1B/1b1n4/1n3qKN/1r1qBnpr/2R5/3RqbpB/N2b1p2/Nq4Q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 e5 axb4 e6 fxe6 Bd2 e5 Bc1 e4 Qf3 exf3 Kf2 b5 Kg3 g5 c4 e5 a4 d5 h4 f2 c5 e4 c6 d3 f5 b3 h5 d4 f6 d2 f7+ Ke7 a5 d1Q c7 b2 h6 d3 a6 e3 h7 e2 a7 e1Q Rh4 d2 Bh3 b4 Nc3 b1Q Ra3 b3 Bb2 Bf5 Nf3 Bc8 Nd4 Bb7 Nc2 Nh6 Na1 Nd7 Na2 Rb8 Be5 b2 a8Q Qee2 Rf3 Qe3 Qa6 Qh1 Qf1 d1B Qg1 Bg7 c8N+ Kf8 Nd6 Qf6 Nf5 Be2 Qg2 Qhd1 Qg1 Qd5 Kg2 g3 Rc4 Ng8 Nh6 Ne7 Rc1 Nf5 Rc4 Ra8 Bb8 Ra5 Be5 Rb5 Bb8 Ke7 f8B+ Ke8 Bc5 Bf8 Bca7 Bb4 Bd4 Bd2 Bc3 Kf8 Bce5 Rg8 h8B Rg7 Bg4 Rh7 Kh3 Bd1 Rff4 Bf3 Rfd4 Qd1 Rd3 b1N Qh2 Nc3 Qg1 Nh4 Be6 Na4 Bf5 Qb1 Be6 Bg2+ Kg4 Nab6 Kh5 Bh1 Bg4 Nf5 Bh3 Bf3+ Rg4 Qe7 Kg6 Qd8 Rc4 Qe7 Nf7 Rh5 Nh6 Qf6+
1B1n4/q2k1rpN/2r2RQ1/1Nnp4/1n1bbR2/p1B5/1Kb4B/1n1RB1br w - - 0 1 legal: proof: c4 d5 a4 dxc4 d4 b5 h4 bxa4 g4 e6 d5 f6 g5 fxg5 d6 gxh4 Bg2 h3 Bd5 exd5 Kd2 a5 Kc2 c5 b4 h5 e4 h2 f4 c3 b5 h4 e5 c4 f5 h3 b6 a3 f6 a4 f7+ Kd7 b7 a2 Qf1 Nf6 Bg5 Qc7 Ne2 Rh6 Qf4 Ra7 Rc1 h1B Qe4 h2 Ng3 Nc6 b8B Nd8 Qg6 Ne4 Rd1 Nc5 Bd2 Be4+ Kc1 h1R Na3 c2 Bc3 Ba6 Kb2 c1N Nb5 N1b3 Nh5 Nd2 Rac1 Be7 f8B Nb1 Rd4 a1N Rcd1 Bf6 Be7 Nc2 e6+ Kc8 Bf8 Nb4 e7 Kd7 e8R Bc2 Rg4 Bd4 Rf4 Qb6 Re5 Rc7 Re3 Qa7 Re6 Bg1 Be1 Bc8 Ref6 c3+ Kc1 Be4 Be7 c2 Kb2 Kc6 Bf8 Rf7 Be7 Bg4 d7+ Be6 Bed6 c1B+ Ka1 Bce3 Kb2 B6f5 Bc3 Nde6 d8B Kd7 Ba5 Nd8 Bde5 Bc2 Be1 Bfe4 B5c3 Bg2 Bg3 Bge4 Bh2 Nba6 Be1 Bd4+ Bac3 Nb4 Rc6 Ke8 Nf6+ Ke7 Nh7 Kd7 Qh5 Rd6 Qg6 Rdf6 Ra6 Rc6 Rb6 Rc8 Re6 Rc6 Ref6 a3+
2Nr3R/q1bN1pqR/q1bn1nnN/pb5k/6r1/B6p/K1p2N2/1BQB4 w - - 0 1 legal: proof: h4 e5 f4 exf4 a4 b5 c4 bxa4 h5 d5 b3 axb3 h6 dxc4 Ra4 gxh6 Ra5 h5 Ra1 h4 e4 h5 d4 a5 Kd2 c5 Kc3 b2 g4 f3 g5 h3 d5 h4 d6 h2 e5 f2 e6 h3 d7+ Ke7 g6 Kf6 e7 Nc6 e8B Qc7 d8N Bd7 g7 Kg6 Bh6 Ne5 Nd2 b1N+ Kb2 c3+ Ka2 c2 Ngf3 c1Q Bd3+ Kh5 Ne4 f1Q Nc6 c4 Ne7 c3 Nf2 Nd2 Nc8 Bd6 Rb1 Nf6 g8N Qa7 Rg1 h1B Rb8 Ng6 Bb1 Bb5 Bf8 Nde4 Nh6 Bc7 Ba3 Qg5 Qc1 Nd6 Ne5 Bhc6 Nd7 Rg8 Rg2 Ba4 Rg4 Qfa6 Rgb4 Bab5 Rg4 Qe5 Rg1 Nh4 Rg7 Ng6 Rh7 Qed4 Nf8 Rg7 Bd7 c2 Bg4+ Kh4 Be2 Qg4 Nd7 Kh5 Ne7 Rg8 Rf8 Rd8 Nc8 Nf4 Re8 Rg5 Reh8 Ng6 Bf1 Qgd4 Be2+ Rg4 Bf3 Nd5 Be2 Qg7 Bd1 Nf6
nn3R2/1N6/1rp2r1r/1rQ3p1/rRB5/p2N1b1k/pnqR2R1/2KN1Bb1 w - - 0 1 legal: proof: c4 e5 a4 b5 f4 bxa4 g4 exf4 g5 d5 b3 dxc4 Bb2 h6 Bd4 hxg5 Bf2 g4 Bg3 fxg3 d4 Kd7 Kd2 Ke6 e4 g5 h4 f5 e5 a5 b4 c6 b5 a3 b6 a2 h5 a4 b7 f4 h6 Kf5 d5 g2 d6 g3 h7 f3 d7 Kg4 e6 a3 e7 c3+ Kc1 c2 e8B Ne7 Nc3 Ra4 Nb1 Nd5 Rh2 Qb6 d8N Bc5 Nf7 Qb3 Rh6 Nb6 Qd2 f2 Nc3 Na8 Nf3 g1R Nd6 g2 Nd1 Bd7 Rg6 Kh3 Qc3 Bg4 Ne1+ Bf3 Bf7 Rh1 Rb1 Rf8 Be6+ Rf5 Bec4 Bb6 Qa5 Rb5 Nd3 Ba7 Rb2 Rh2 Be2 g1R Bf1+ Rgg2 Rf6 Bd4 Rf8 Bb6 Be2 f1R Qc3 Bg1 h8R+ Kg4 Qe5 Rh6 Qc5 Kh3 Rd8 Rg4 Rhf8 Ra6 Rd7 Rab6 Rdd8 Be4 Rd7 Rff6 Rdd8 Bf3 Rd7 Na6 b8R Re4 Nb7 Reh4 Rbe8 Nb8 Re4 Rhf4 Kd2 c1N Bf1+ Kg3 Re2 Rd4 Rg2+ Kh3 Bf7 Ra4 Bc4 Ne2 Rd5 Nc3 Kc1 Ne4 Rd4 Nf2 Nc3 Nd1 Rbd2 Nb2 Nd1 Na6 Bf7 Nb8 Rb4 Raa6 Bg8 Ra4 Bc4 Qc2+
r2q2r1/6Bn/1R1Q4/kBRqpr2/1N1n3p/1pN3bp/b2rRR2/1N3Kq1 w - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 f4 d5 g4 Kd7 c4 Kc7 f5 Kb6 f6 h5 f7 d3 g5 e3 c5+ Ka5 c6 b5 g6 d2+ Ke2 b4 c7 h3 g7 a2 Ba3 d4 Qc2 d1R Qc3 d3+ Kf3 h4 Qb2 d2 Ke2 Nf6 g8R Nc6 Rg6 Rg8 Qd4 Nh7 Rh2 Be6 c8N Bg7 f8R Be5 Qd3 Bg3 Nb6 Bb3 Qd6 e5 Rff2 Nd4+ Kd3 e2 Nd5 e1Q Ne2 Qf8 Nec3 Qd8 Re2 Qf2 Bc1 Qg1 Rhf2 Qh2 Re6 Bc2+ Ke3 b3 Nb4 Bd3 Qe7 Qd5 Rb6 Raf8 Qd6 Rf5 Re1 Be4 Bb5 Bc2 Ree2 Bd3 Na3 Be4 Rb1 a1R Rb2 Bb1 Rc2 Ba2 Nab1 Rg1 Kd3 d1Q+ Bd2 Rg2 Rc1 Qdh1 Bh6 Qa8 Bg7 Qd8 Rf4 Rf2 Kd2 Qb7 Ke1 Rg2+ Kf1 Qd5 Ree1 Rb2 Re2 Rd2 Na3 Rb1 Rff2 Rbb2 Nab1 Rbc2 Na4 Rc8 Rc5 Ra8 Nac3 Qg1+
3qbqQN/1pBp1N1R/2R1bN1b/N1p1nq2/3r1rn1/6Kp/1kB4R/5b2 w - - 0 1 illegal: Other
NKN1bb1R/p7/8/bQ2Bpk1/pN3p2/1nq1R1n1/brr2BrB/q5N1 w - - 0 1 legal: proof: d4 e5 f4 exf4 a4 c5 g4 cxd4 a5 h5 a6 hxg4 c3 d3 Bg2 bxa6 Bd5 a5 Bb3 a4 Bc2 dxc2 Kf2 Ke7 h4 Kf6 e4 g5 b4 d5 h5 d4 e5+ Kf5 h6 g3+ Kf3 g2 e6 d3 b5 f6 e7 d2 e8N Nd7 b6 Kg6 Ke4 Ne7 b7 Nf5 Kd5 Rb8 Kc6 Nc5 h7 Rg8 h8B Ng3 c4 Qd3 Kc7 Bd7 Nc3 Nb3 Qf1 d1B Na2 Qc3 Be3 c1R c5 Rc2 c6 Be2 Bg7 Bc4 Nb4 Kf5 Rh8 g4 Bf2 Kg5 Ra3 f5 Bgd4 Bf7 Qb5 Bde6 Nf6 Rg7 Nd7 Be8 Bde3 Rg6 Nb6 Bc4 Na8 Bd5 Ne2 g1Q Bc5 Qga1 Ng1 Nc1 Bcd4 Ba2 Bde3 Nb3 Bb6 Rd8 b8B Rdd2 Kc8 Rb2 c7 Rdc2 Bbe3 Ne4 Kb7 g3 c8N g2 Be5 Ng3 Kb8 Rg7 Ne2 Rg8 Bg1 Rg6 Bh2 g1B Bb6 Bgc5 Ng1 Bce7 Be3 Bd8 Bf2 Ba5 Bc7 Re6 Qe5 Qc6 Bfb6 Nd2 Qb5 Re2 Be5 Rg2 Bf2 Qc5 Rd3 Nb3 Re3 Qc3
1B2N1r1/1rp1n3/3R2pK/R1p1k2p/3NN1Qb/q1BB1n2/1p6/n3Bqqb w - - 0 1 legal: proof: c4 e5 b4 a5 f4 axb4 c5 exf4 Na3 d6 Nb1 dxc5 g4 Qd3 h4 Qd4 g5 Qd8 g6 hxg6 h5 Nd7 h6 Nb8 Qb3 Bh3 Qf3 Bc8 Qh5 gxh5 Kf2 Kd7 Kf3 Ke6 e4 b5 a4 f5 d4 b3 a5 b4 e5 g6 h7 b2 d5+ Ke7 d6+ Ke6 a6 b3 a7 Nf6 d7 Nd5 Bd3 Be7 Ne2 Bb7 Rd1 Rg8 h8B Nc6 Bd2 Ndb4 Ra5 Nc2 Nbc3 b1N Ne4 Rb8 a8Q b2 Nd4+ Kd5 e6 Na1 Bc3 Bh4 e7 Qf8 e8N Ne7 d8B Nd2+ Kg2 f3+ Kh3 f2 Qa6 Qg7 Qc4+ Ke5 Qa4 f4 Qd7 f3 Qg4 Nb1 Be1 Nd5 Bg5 Ne7 Bgd2 Bc6 Bb4 Rb7 Bbc3 Qf6 Bg7 Bd5 Bh6 Qa6 Bhd2 Bf6 Kg3 Bg5 Kh3 f1Q+ Kg3 Qg1+ Kh3 Be3 Kh4 Bf2+ Kg5 Bh4+ Kh6 f2 Ra2 f1Q Ba5 Qa8 Bdc3 Nc8 Bb6 Qa3 Ba7 Nd2 Bb8 Nf3 Rd2 Qb4 Ra4 Ne7 Ra5 Qa3 Rf2 Nd2 Rf6 Nf3 Rd6 Nd2 Ng5 Bh1 Ne4 Nf3
r1nr1q2/Bq2B2R/N1Q1rq2/K2q1R2/1r1nR3/p2k4/2bN1b2/3Rq2Q w - - 0 1 legal: proof: f4 a5 b4 c5 a4 e5 h4 exf4 d4 cxd4 e3 g5 Ba6 bxa6 b5 axb5 axb5 gxh4 b6 a4 Kd2 Ke7 g4 Kd6 c4 Kc5 b7 f5 g5 h5 g6 d5 e4 f3 g7 a3 e5 h3 e6 d3 Kc3 d4+ Kb3 f2 e7 f1R e8R h2 Ra2 d2 Qg4 d1R Rf2 h4 Re3 f4 Rfe2 h3 Re8 f3 Bd2 d3 Qf5+ Kd4 c5 f2 Kb4 Rfe1 R2e7 f1Q c6 Re6 c7 Rh4 Bg5 d2 Qh7 Qf6 Nc3 Nc6+ Kb5 Bd7 Ne4 Kd3 c8Q Nd4+ Kb4 Ba4 b8B Rf4 Qc6 Bc2 Nf3 Rh4 Rg1 h1Q Ba7 h2 Rf1 Qb8+ Ka5 Qc8 Rf7 Ne7 g8R Qb7 Qh6 Nc8 Rgg7 Bc5 Rh7 Qbe7 Qh5 Qf8 Rd7 Qg2 Rd5 h1Q Rf5 Qhg1 Ree7 Rf4 Qh1 Q1f2 Bh4 Qe1 Re8 Qgg7 Bg5 Qb7 Bh4 Qe5 Be7 Qef6 Rg1 Rb1 Rf1 d1Q+ Nfd2 Rb4 Rg1 Rg4 Rgf1 Rg8 Rg1 Nb5 Rgf1 Bf2 Nc5+ Kc3 Na6+ Kd3 Rf4 Qf3 Rd8+ Nd4 Re4 Qg2 Rd5 Qgg5 Rb5 Qd5 Rc5 Qe2 Rd1 Qe1 Rb5 Q8h6 Rc5 Rd8 Rb5 Qhf8 Rc5 Qa2 Rf5 Qd5+
2R2r1Q/1qbr1p2/R7/2p1B3/N2Q2Qp/1n1pN1K1/Br4np/k1r3bQ w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 c5 h4 g5 d4 gxh4 a3 bxa3 f5 b5 f6 Bb7 d5 bxc4 Qd3 Bc6 dxc6 exf6 Qd6 f5 Qd1 f4 Kf2 Ke7 g4 Ke6 e4 Ke5 c7 d5 c8Q h5 g5 a2 g6 h3 g7 d4 Qf3 d3 Qa6 Kd4 e5 c3 e6 h2 e7 c2 e8Q Qd5 Qa3 Nc6 Bd2 c1R Qe7 Rd8 Qe8 Nge7 g8Q Rd7 Bg2 Nf5 Nc3 Bd6 Qb2 Nh4 Nh3 Na5 Re1 Bc7 Qgg4 Nb3 Na4+ Kc4 Bb4 Rf8 Bc3 Qb7 Be5 Rb1 Bh1 Ng2 Rg1 Kb4 Qd4+ Ka3 Qd1 f3 Nf4 Rc1 Kg3 f2 Nd5 f1R Ne3 Rf2 Qa8 Rb2 Qf1 Ne1 Bd5 Ng2 Qf6 Rd1 Qh8 Rc1 Rb1 a1B Rf1 Ka2 Rf6 Rbc2 Ra6 Bc3 Rb2+ Ka1 Bc4 Nd2 Rb4 Rb2 Ba2 Nb3 Rbb6 Bd2 Re6 Bc3 Re8 Be1+ Kh3 Bf2 Rc8 Bg1 Kg3 Qb8 Qae4 Qb7 Qef3 Nh4 Qh1 Ng2 Rg6 Rfd8 Rb6 Rf8 Ra6 h4+
rk1bbnb1/1rb1b2b/1BQ1R3/1q3N2/b1Q1q3/4Nn2/K3R2n/1Qr1BQ2 w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 g5 c4 f5 Kc2 b5 Kb2 d5 h4 Kd7 a4 Kc7 e4 g4 e5 d3 a5 f4 e6 b3 c5 f3 e7 b4 e8Q f2 a6 f1Q h5 d2 a7 d4 h6 d3 c6 Nf6 h7 Bd7 Qe4 Qe7 Rh3 Be8 Qc4 Nbd7 Qe1 d1R Qce6 d2 Q6e2 Qe4 Ra5 Be7 Na3 Nf8 Qa6 Qb5 Ne2 g1B Nb1 g2 Qh4 g3 Qg5 Ng4 Qf5 Bb6 Nbc3 g1N Ra2 g2 Nd4 Nf3 Rh6 g1B Re6 Ngh2 Qg6 Bf2 Nf5 Bfh4 Ka1 Rg8 h8B Rg7 Rc2 b2+ Ka2 Rg1 Nd1 Rh7 Nde3 d1B Rd2 Ba4 Bc3 Re1 Re2 b1B+ Ka1 Rf1 Be1 b3 Ba3 Rh1 Bc5 Ba2 Qg1 Rf7 Qf1 Ba5 Qb6+ Kc8 c7 Bd8 Qg1 Bhe7 Qf1 Rg7 Kb2 Rh7 Ka3 b2 Qc6 b1B Qb6 Rb8 a8Q Bd5 Qac6 Ra8 Re5 Bg8 Re6 Qa6 Qb4 Qb5 Bd4 Bbc2 Ka2 Bb6 Qcc4 Kb7 c8Q+ Ka7 Be5 Bbc7 Qb1 Rg7 Qd7 Kb8 Bd4 Rf7 Bb6 Rh7 Bd2 Rg7 Qdc6 Bd3 Qh3 Rc1 Be1 Qd4 Q6d5 Bg3 Nd6 Bdh7 Nc2 Beh4 Qdc6 Qe4 Ne3 Rb7 Qf1 Bhe7 Ndf5 Bgc7
b2Qr1B1/5rQr/1N3K2/2rqnQ2/R1N2R2/1r1qQq2/q2bn3/1k3nrB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 a4 d5+ Ke5 b5 h4 g5 e4+ d3 h5 f5 a5 d4 a6 f4 c3 g2 a7 b3 h6 f3 h7 b4 Ra4 b2 Rh5 f2 Rh1 g3 Ra5 g4 Qc1 Kb3 c4 d2 c5 d1Q c6 d3 c7 d2 Rh6 Bb7 c8Q Nc6+ Kf5 Qd5+ e5 Q1f3+ Kg6 d1Q e6 Nf6 e7 Nd7 e8Q Nde5+ Kg5 Nd4 Raa6 Ne2 Rac6 Ka2 Qed7 b3 Rc5 Q1d3 Rf6 Bh6+ Kh4 Bd2 Nh3 g1R Rf4 g2 Kg5 g3 Na3 b1R Qf5 b2 Kf6 Bc6 Qf8 Re8 Rcc4 Ba8 Qg7 Rh1 Rce4 g1R Nc4 g2 Qe1 Rhg8 h8Q Rc1 Rd4 b1R Rde4 Rb3 Qh4 Nc3 Qe3 Kb1 Be2 f1N Qhg5 Bb7 a8B Re7 Bd1 Ne2 Qh4 Rd8 Qhh8 Rdd7 Qd8 Re8 Rd4 Rbc3 Ba4 Rb3 Rde4 Rc7 Bd7 Rh2 Be6 Rce7 Bg8 Rc7 Nb6 R1c5 Nf2 Rh7 Nd1 Rce7 Nb2 Rf7+ Kg5 Bc8 Bc6 Bb7 Ra4 Ba8 N2c4 Rgh1 Bb7 g1Q+ Qg4 Qgf2 Qf5 Qe1 Bc6 Qd1 Bb7 Q1c2 Bc6 Qa2 Bb7 Rfc7 Kf6 Rg1 Nb2 Qg3 Qfg6 Qd7 Bh1 Qd5 Qf5 Qgf3 N2c4 Rf7+
k1Kn3r/2bQb2B/2bn4/3N3b/1NR1n1bB/1B1B3n/2QR4/b1bqr2b w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 g5 c4 d5 h4 Kd7 e4 Kc6 c5 b5 e5 Kb7 h5 f5 h6 b4 e6 f3 Kg3 f4+ Kf2 d3 h7 d4 e7 d2 e8B a2 Rh5 d3 Nh3 b3 Be2 g3+ Kf1 f2 Kg2 f1B+ Kf3 b2 Ke4 f3 Ke5 g2 Bd7 g1B Ke6 g4 Re5 g3 Rh5 g2 Qc2 d1N Nd2 b1N Re5 f2 Ng5 Na3 Bh5 Nc6 Bf7 Be7 Nge4 Nc4 Nb3 d2 Nd4 Nd6 Nc3 Nf6 Re2 Nfe4 Nd5 Bh2 Rb1+ Ka7 Rb4 g1B Rc4 a1B Bg6 Re8 h8Q Bg2 Qg7 f1B Bh7 Ndf2 Qf7 d1B Bg5 Bb7 Bh4 Bh1 Rd2 Bfe2 Qf5 Bg4 Bc8 Qa5 Kd7 Nd8 c6 Nh3 c7 Be3 Qe6 Rb8 Nc6+ Ka8 Ncb4 Bh5 Qf5 Bdg4 Qe6 Qa7 Qf5 Qd4 Qe6 Ka7 Qf5 Ba8 Ba6 Be5 c8B Bc6+ Kc7 Ka8 Be6 B3g5 Bf7 Qg1 Qd7 Qd1 Rc3 Rh8 Bd3 Bg3 Rc4 Bh2 Re2 Bc1 Rd2 Rb5 Nc3 Rf5 Ncd5 Rf1 Bfg8 Re1 Be6 Nf5+ Kc8 Bc7 Nb6+ Ka7 Rd4 Bf8 Bb3 Be7 N6d5 Ka8 Rc4 Nfd6+
q5Nn/2N4Q/1BR2r2/8/nq1Rp1kr/2br3b/BR3qbQ/1nbR1bK1 w - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 f4 Kf7 Kf2 Ke6 c4 Kf5 c5 e5 g3 b5 c6 h5 c7 d5 Qa4 a2 Bb2 e3+ Kg2 h3+ Kh2 b4 Bc4 d3 Bb5 b3 Bc3 d4 Nd2 e4 Nb1 h4 Qa5 b2 Bc4+ Kg4 f5 e2 f6 e1Q f7 d2 Bd5 d1B Qb4 d3 Qb7 d2 Bg7 Ne7 Bd4 Ng6 Nc3 b1N Nb5 Be2 Bb6 d1R Nf3 Bf1 Nfd4 Nd7 Nc6 Ba3 f8R Ra6 Rf2 Rd3 Ne7 Nc5 Rb2 Qb4 Kg1 Na4 Qb8 Qe8 Ng8 h2+ Kf2 Bf5 c8R h3 Rc6 Rh4 Nc7 Nh8 Rg1 h1B Be6 Nbc3 Rd1 a1B Ba2 Nb1 Rg2 Bd7 Kg1 Bf5 Rgc2 Bhg2 R2c4 Be6 Rd4 Qef8 Rbd2 Bc3 Rc2 Bc1 Rb2 Kg5 g4 Qf2+ Kh2 Kf4 g5 Kg4 g6 Bc8 g7 Bf5 Rh6 Bd7 Ba5 Rf6 Bb6 Qf5 Kg1 Qd5 Rh5 Qa8 Rc5 Be6 Rc6 Bd7 Qf8 Bf5 Qd6 h2+ Kf2 h1Q Qe5 Bh3 Qh2 Qf3+ Kg1 Qe2 Ne7 Bhg2 g8Q+ Kh5 Qg7 Bfh3 Qh7+ Kg4 Ng8 Qf2+
1bqbBNrQ/1k1B4/2r2p2/q7/1N2qrqR/1B2Q3/n2Kb1n1/q3RnB1 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 e4 d5 c4 Kd7 g4 Kc7 g5 h5 e5 b5 c5 h3 g6 a2 g7 h2 c6 d3 e6 f6 e7 h4 e8Q d2+ Ke2 h3 Qe3 d4 Qa3 b4 Qg3 b3 Bg2 d3+ Kf2 b2 Qh5 d1Q Bf1 d2 Qgg4 f3 Ke3 f2 Be2 f1N+ Kf3 Be7 Qhg5 Rh4 Q4h5 Na6 Qgh6 Qe1 Bd3 d1Q+ Ne2 Bg4+ Kf4 Nb4 Nbc3 b1Q Be4 Qc8 Q5g6 Bd8 Qgg5 Ne7 g8B Nf5 Bb3 N5e3 Qh8 Qdd7 Bd3 Ng2+ Ke4 Kb6 c7 Kb7 Be3 Qd2 Nf4 Be2 Nd5 Qg4 Bc5 Qbe1 Rc1 a1B Bg1 Na2 Bb5 Qa5 Be8 Be5 Nb4 Bd6 Rc4 Qa1 Rc1 Ra6 Re1 Rc6 Qe5 Rh7 Qc5 Rg7 Qc1 Rg8 Qe3 Qg7 Ne6 Qg4+ Qf4 Bc5 Nf8 Ba7 Bf2 Bb8 Bc5 Bf3+ Kd3 Bd1 Qe3 Bf3 Rg1 h1R Bd4 h2 Bc5 Ng3 Kd2 Be2 Rgf1 Rg1 Rf4 h1Q Rc4 Rf1 Ba7 Qg6 Rh4 Rf4 Bd4 Qe4 Bc5 Qg4 Ba7 Qhh3 c8B+ Ka8 Bcd7 Kb7 Qc3 Qge6 Bg1 Qhg4 Qd4 Qc4 Bf5 Qce6 Qe3 Qc8 Bfd7 Nf1+
1R4b1/1R4b1/qNrn1nnn/2N4Q/Q1qr2B1/1BrBk2K/7p/4nqrB w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kf2 Ke7 g4 Kd6 Kg2 Ke5 c4 Ke4 e3 d5 c5 h5 a5 f5 c6 b5 c7 a2 a6 d3 a7 d4 g5 f3+ Kh3 b4 g6 d2 g7 b3 Na3 b2 Bg2 b1N Qe1 d1N Qe2 f4+ Kh2 h3 Nb5 h4 Na3 d3 Qc2 Rh6 Qc4+ Qd4 Qb4 d2 Qd6 Be6 c8Q Nd7 Qcc7 Ngf6 g8B Nbc3 Nb5 Qc4 Ne2 Bg7 Qcb6 Rc8 Qa3 Nf2 Rhb1 d1R Qa4 Nf8 Bf1 Rd4 Na3 Ng6 Qc5 Nb5 Qh5 Nd6 a8B+ Bd5 Rb8 N2g4+ Kh1 h2 Rab1 a1Q Nc1 f2 Kg2 h1N Nd3 f3+ Kh3 Rc7 Be2 f1R R1b7 Rg1 Bf1 f2 Nc5+ Kf3 e4 Ke3 e5 Qaa2 e6 Qae2 Bg2 f1Q e7 Qed3 Bh7 Bg8 e8B Qa6 Bf7 Qdc4 Nb5 Rc6 Na7 Rc7 Nc8 Rc6 Qd5 Rh5 Be6 Nh6 Nb6 Re5 Bg4 Nf2+ Kh2 h3 Bh1 Re7 Qh5 Nd3 Bd5 Ne1 Bf7 Nh4 Bd3 Ng6 Bfe6 Rec7 Bd5 Ng2 Kg3 h2 Kh3 Qb4 Bb3 Qbb5 Ncd7 Rc3 Nc5 Qc4 Ra7 Rc8 Bae4 Rc7 Rab7 Rc6 Bef3 Ne1+ Bg2 Qf2 Bh1 Qf1+
1Q2K3/2b5/1r3QQn/q4rb1/Bk2B2R/1qNQ1R2/rbb1N1p1/3bnnn1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 g5 Kb5 f5 e4 d3 a4 b3 c4 f4 h4 d2 a5 b2 a6 g2 a7 f3 h5 g3 h6 f2 h7 g4 Ra6+ Nc6 Rh4 Bg7 Rh1 Nh6 Rh5 Rf8 h8Q Rf5+ Ka4 Kc5 e5 b5+ Kb3 d5 e6 d4 e7 d3 e8Q b4 Ka4 b3 Qd7 Nb4 Rh1 Nc2 Nf3 g1B Ne5 g2 Qhe8 g3 Qf3 d1B Rb6 d2 Qdd3 Ne1 Ng6 Bh2 Nc3 b1Q Nf4 g1B Nfe2 g2 Qg6 b2+ Rb3 Bc7 Rh4 Bc2 Qf4 d1N Qfg5 Bb7 Q6f6 Bf3 Qgg6 Rb8 a8B Rb6 Bb7 Bgh2 Ka5 Bhf4 Be4 Bg5 Ra3 Rb4+ Ka6 Ra4+ Kb7 Kb4 Kc6 Qa8+ Kd7 Qa5 c5 Bh8 Nb5 Nc3 c6 Qd1 Ke8 b1R Ned4 Ne2 Nc3 Ng1 Nde2 Kc5 Rb3 Ra2 Ra3 Rb6 Rb3 Bg3 c7 Bh5 c8Q+ Bc7 Ra3 Kb4 Qb8 Bg4 Ng3 Bf3 Be2 Qb1 Bd1 f1N Nge2 Qb3 Ng3 Bb1 Bc2 Bd1 Nge2 Qbd5 Bb3 Bbc2 Ba4 Qb3 Nb5 Qa6 Qdd4+ Qc4 Qfg7 Nh2 Rf3 Qa5 Qd3 Nf1 Q7f7 Bhe5 Qff6 Bb2 Nbc3 Qb3
2q3B1/n2b2bQ/1bN1rr2/3rn3/QR2KRN1/rpk1b1R1/Bn6/2rr2R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 h4 Kc5 c4 g5 e4 f5 a4 b5 a5 d5 a6 f4 e5 b3 a7 Kb4 c5 g2 h5 g3 c6 f3 e6 g4 h6 b2 c7 f2 h7 Nc6 e7 Nf6 e8Q Nd7 Rh5 Bg7 Ne2 g1R Rf5 g2 Qf7 g3 Nc1 Nde5+ Kc2 d3+ Kd2 d4 Rg5 Bd7 c8B Re8 h8R Re6 Be2 f1R Nc3 b1R Rf8 Rff6 Nb3 Rc1 Na5 Rh1 Bf1 g1B Ne4 g2 Nf2 Rh5 Rg3 Qe8 Bb7 Qc8 Ng4 Bf2 Qg6 g1B Qh7 Rg5 Bg2 Rh5 Bd5 Be3+ Ke1 d2+ Ke2 Kc3 Qa4 d1R Ba2 b4 Rb1 Rfh6 Rf4 b3 Ba6 Rhf6 Bc4 Nf7 Kf3 d3 Bd5 Nfe5+ Ke4 Bb6 Bc4 Bge3 Ra1 d2 Bd5 Rb8 a8R Na7 Nc6 Rb7 Rb8 Rc7 Nb4 Rc5 Nc6 Ra5 Qb5 Ra3 Qa4 Re1 Rb7 d1N Rb8 Nb2 Rb1 Bc5 Rb4 Bb6 Ra1 Red1 Rb1 Re8 Bg8 Ree6 Ra1 Rhh1 Rb1 Rd5 Ra1 Rc2 Rag1 Rc1 R1g2 Rhf1 Rg1 Rfd1
3q1Nkn/Q1qr2b1/p1R2bKQ/1R5n/RBbr1N2/1bq5/1b1b1B2/q3R3 w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Kd2 f3 Ra2 g3 Bg2 fxg2 Ra1 cxd6 Ke1 d5 Ra3 d4 Ra2 Qh4 Ra1 Qd8 Kd2 g5 Kd3 d5 b4 f5 h4 Kf7 c4 a3 e4 f4 c5 g4 c6 a6 h5 a2 b5 f3 c7 f2 b6 f1Q+ Ne2 g1Q e5 g2 h6 g3 h7 Qf3+ Be3 Nf6 b7 Nc6 b8R Qh2 Rf1 g1B Nec3 g2 Rb5 Be6 c8Q Nh5 Rb4 Ra7 Rb5 Bg7 Qb3 Rd7 Qc7 Re8 h8B Kg8 Qb2 Bf7 e6 Ne5+ Kd2 d3 e7 d4 Rc1 Qfg3 Ne2 Bc4 Nbc3 Nf7 Qa7 Qgc7 Qb1 Qhe5 Nd5 Bf2 Qb2 g1B Nb6 Bh4 Nf4 Bhf6 Bf2 Rf8 e8R Qec5 Rab1 a1B Re4 Q5c6 Qa3 Bb2 Qd6 Re8 Ree1 Re4 Ra1 Qc5 Ra4 Qa3 Kd1 d2 Kc2 d1B+ Kd2 d3 Rc2 Bb3 Rc6 Rd4 Ke3 d2 Qe6 Be2 Qh3 R4d6 Ke4 d1Q Kf5 Rd4 Kg6 Bec4 Qh4 Bh2 Qg5 Qda1 Qh6 Re7 Nd7 Qc5 Nh3 Bf4 Nf8 Bd2 Nf4 Qb4 Qc5 Qc3 Qa7 Bg5 Nh7 Red7 Nf8 Be5 Bf6 Bh4 Be7 Bg7 Bc5 Bhf6 Bb4 Nh8+
1rNR3n/2qBn3/k1qN3N/4rn2/1B1p1bq1/6Q1/1QrrnR1N/1q1b3K w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kf2 h5 e4 b5 g4 d5 Kg2 Kd7 c4 Kc6 e5 Kb6 g5 f5 e6 a2 e7 f3+ Kh2 d3 e8Q h3 c5+ Ka6 c6 d4 g6 f2 g7 d2 c7 h4 Qee2 f4 Na3 f3 Qe7 Bg4 c8N Qc7+ Nd6 Nh6 g8N Nc6 Qe3 Rb8 Ne2 b4 Qc2 d1Q Bb2 b3 Qcd2 Ne7 Qdc3 Nf7 Bg2 f1R Qe1 f2 Ng3 Rh5 Qe5 Nh8 Q5e3 Bh6 Ndc4 Re5 Ba8 Bf4 Rb1 a1R Bc3 b2 Nd6 Ra2 Bb4 Bh5 Ra1 b1Q Nh6 Rc2 Q3c3 Qg4 Bc6 Rd2 Qee3 Rc1 Qb2 Rcc2 Nc8 f1Q+ Qf2 Qb5 Rf1 Qa4 Kg1 h2+ Kh1 Qb5 Bd7 Qbc4 Kg2 h1N Ra2 Qb5 Nc4+ Qa4 N4d6 h3+ Kg1 h2+ Kg2 Ra5 Ra3 Re5 Rf3 Qac6 Re1 Qf5 Nf1 Ng3 Rc1 h1N Nh2 Ne2 Qg3 Qg4 Rf1 Nf2 Rc1 Nd1 Kh1 Ne3 Re1 Nc1 Rf1 N3f5 Rf2 Qa4 Rc3 Qb5 Rc5 Qbc6+ Rd5 Ne2+ Qc1 Ng8 Nb7 Qg7 Be8 Ng1 Qb2 Bg4 Nf1 Nge7 Nh2 Qc5 Rd8 Bd1 Nbd6 Qg4 Bc6 Ne2 Bd7 Q5c6+
3nbnnN/4r3/KB3kqb/3q1BpQ/R3QN1Q/1r1QR2b/5qp1/1r3r2 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kd2 Ke7 Kd3 b5 c4 d5 e4 f5 h4 g5 h5 f3 c5 a2 c6 b4 c7 g3 e5 b3 h6 b2 h7 g2 e6 f2 Nd2 b1Q+ Qc2 f4 Nh3 f3 Nc4 Bh6 Nf4 Kf6 e7 Nc6 e8Q Ra3+ Kd2 d3 Ng6 d4 Nge5 Rb3 Nd6 Bh3 Ndf7 Qd5 c8Q Nd8 Be2 f1Q Qcd7 f2 Ng6 Qg1 Bg4 f1R Nf4 Qf2+ Qe2 Ne7 Qb7 Re8 Nh8 Ng8 Bf5 Re7 Ba3 Qb2 Re1 a1N Bc5 Qb1 Qc3 Nc2 Bb6 Ne3 Qc4 Ng4 Qba6 Ne5 Rg1 Qg3 Qh5 Nd7 Re3 Nf8 Qc2 Qgf3 Qa8 Qg3 Qcd1 Qf2+ Qde2 Qf7 Qe4 Qg6 Qh4 Qa1 Rh1 Qa8 Qh5 Rfb1 Rc1 Qd5 Rc4 Rf1 Ra4 Qg1 Qd1 Qf2+ Kc1 d2+ Kc2 Rd7 Qde2 d1B+ Kd2 d3 Qh4 Rb1 Kc3 d2 Q2d3 Re7 Qh5 Bb3 Kb4 d1R Qh4 Rdc1 Qh5 Rc3 Qh4 Qd7 Ka5 Bf7 Ka6 Rcb3 Qc2 Rfc1 Qcd3 Be8 Nf7 Qd5 h8Q+ Bg7 Q8h5 Bh6 Nh8 Rf1
2B1q1qN/5nKn/1b1kq1p1/1RR1rBQp/4b1Bb/2B1Qr2/2N4n/4n1q1 w - - 0 1 illegal: No possible last move
1Q1B4/b2K1n2/B1bR1b2/pnR1Q2N/3Q2rb/r1p1q3/1pQ1N1kb/1q1q4 w - - 0 1 legal: proof: g4 e5 f4 exf4 a4 d5 c4 dxc4 b4 h5 b5 hxg4 b6 axb6 a5 bxa5 Kf2 Ke7 e4 Ke6 h4 Ke5 h5 b5 d3 c5 h6 g5 h7 f5 Be2 g3+ Kf3 g2 Ra2 b4 Nc3 b3 Bd2 g4+ Kf2 f3 Kg3 b2 Qb1 f2 Ra1 f1Q Be1 f4+ Kh2 f3 Kg3 f2 Nb5 c3 Nh3 g1B Nc7 c4 Ne8 c2 Qc1 Bg7 Nf4 Bb7 Rh6 Bf6 Ng7 Qe7 Ngh5 Nc6 Rb1 Kd4 e5 Na7 e6 Nb5 Qd2 c1B Qc2 Ke3 d4 Re8 d5 Bc6 d6 c3 d7 Rb8 d8Q Rb7 Rg6 Nh6 Rg5 Nf7 Rc5 Rg8 h8Q Rg5 Kh4 g3 Qb8 g2 Bc4 Kf3 Ne2 Bf4 Rd1 Bgh2 Rd6 g1B Qhd8 Qe8 e7 Kg2 Bd3 Bc1 Bd2 Rg6+ Bg5 Qd1 Kg4 f1Q Bc4 Bf2 Kf5 Bh4+ Ke6 Be3 Qb6 Qb1 Q6a7 Qfd1 Qb6 Na3 Ba6 Bed4 Q6d8 Rb3 Qdb6 Bdg1 Qb4 Nb5 Qd4 Qf8 e8Q Qh6 Qh8 Ra3 Qe5 Bd8+ Bf6 Qe3 Qg7 Rg4 Bg5 Bb6 Bd8 Ba7 Qf6 Bgf2 Qf4 Bf6 Qd4 Bf3 Kd7 B2h4 Bc7 Be4 Bd8 Bc6+
4nB1k/3pRRbB/2b2bR1/4rQ2/1q3Kpn/5p1Q/1q1Nqr2/n1Rb3N w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kd2 f5 h4 Kf7 e4 g5 c4 Kg7 h5 b5 c5 f3 e5 g3 e6 g2 c6 f2 e7 g4 e8R f4 c7 a2 Re2 f3 Qe1 d3 Ke3 d2 Kf4 d1B Rh4 b4 Be3 b3 Qa5 b2 Rh2 Ne7 Rh3 Na6 Bd2 Bb7 c8R Nc7 Rb8 Nf5 Bb4 Ne8 Nd2 Qf6 Rc1 Bc6 Rb6 Nh4+ Qf5 a1N h6+ Kg8 Re3 b1Q Re7 Ra2 Bd3 f1Q Ne2 g1B Ng3 Bg7 Nh1 Qe2 Bc2 Bd4 h7+ Kf8 Bd6 Qb4 Bc5 Rg8 h8Q Rb2 Qh6 Rh8 Rf7+ Kg8 Bf8 Rh7 Rh2 Kh8 Rg2 Ra2 Rg1 Ra5 Re1 Re5 Ra6 Qe6 Rb6 Qa2 Qhh5 Qab2 Ra6 Ba4 Rg6 Bc6 Qe6 Nf5 Qh3 Nh4 Be4 Ra5 Qf5 Bdf6 Rc5 Ra2 Re5 Rh5 Ree7 Bda4 Rc1 Bd1 Qe6 Rb5 Qf5 Re5 Nb1 Qb7 Rg5 Q2b3 Qe6 Qeb5 Bh7 Rf2 Nd2 Qe2 Qf5 Qb2 Rg6 Q7b4+
3bb1Nk/1nNbp3/5pR1/rRp2Qn1/6pn/NNB4p/3r2p1/qK2Q2B w - - 0 1 illegal: No possible last move
1qQ5/1B3R1R/2B1bqk1/2Q1QpqR/5p1n/1rK1Nn2/3B1rbb/6qq w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 b5 c5 Nc3 cxd4 Na2 b6 Nb4 axb4 a5 bxa5 Rh2 a4 Rh3 b3 Rh2 a3 Rh1 b2 Bxb2 Qg5 Bc1 Qd8 Kd2 h5 g4 h3 c4 d3 e4 a2 e5 h2 b6 h4 g5 h3 b7 Bd6 c5 Ne7 c6 Rf8 c7 Ng6 e6 Nh4 e7 Ra3 g6 Rb3 g7 Nc6 g8Q Ne5 Qe2 Nef3+ Kd1 d2 Rb1 a1Q Kc2 Qf6 b8R Be5 Qe1 d6 Qe4 Be6 Rb7 Qb8 Bg2 Qg5 c8B f6 Qh8 Kf7 Qe3 Kg6 Ne2 Rf7 Rf1 h1Q e8Q h2 Nc3 d1B+ Kd3 Qg1 Qc5 h1Q Bd2 Be2+ Kc2 Ba6 Rf2 Bf1 Nd1 d5 Rc1 Bc3 Qec6 d4 Qa7 Nh2 Be3 Qf5+ Be4 Ng2 Rb4 Nf3 Bd7 Rh7 Qcc8 Rh2 Rb7 Be1 Rd2 Bh4 Bb5 Be1 Rh7 Bg3 Qe7 Ngh4 Ba4 Rd3 Bb7 Rf2 Qef8 Bh2 Be8+ Kg5 Bec6 Kg6 Kb2 Ra3 Rc5 Bg2 Rd5 d3 Qc5 Qg4 Rdh5 f5 Qhd4 Qg5 Re2 Ba2 Bc1 d2 Ree7 Rc3 Ref7 Be6 Ne3 d1Q+ Bd2 Ra3 Qdd6 Qa1+ Kc2 Qh8 Qde5 Qhf6 Kb2 Rb3+ Kc2 Rb2+ Kc3 Rb3+
2Bb4/Bbn1pn2/3bQ2q/2nR2n1/2qK4/pN1RQBkr/2R1Q3/r5r1 w - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 e4 g5 a4 bxa4 e5 gxh4 e6 a3 b5 fxe6 Nd2 e5 Nb3 a5 Nxa5 e4 Nc6 Qc7 Nd8 Qxd8 Kd2 Kf7 g4 Ke6 c4 Ke5 b6 Kf4 b7 d5 g5 h5 g6 d3 Kc3+ d2 f3 e3 g7 h3 c5 h4 c6 h2 c7 e2 Kd4 e1B Qb3 h3 Bd3 Nh6 g8R Nd7 b8Q Bb7 c8B+ Qc7 Qb6 Nf7 Be2 Bh6 Qb3 Nc5 Re8 Kg3 Rf8 d1R+ Bd2 Bf4 Qa7 Bd6 Ra2 Ra1 Be3 Ba5 f4 Qc6 f5 Bd8 f6 Rb8 Kc3 d4+ Kc4 d3 Rc2 d2 Nf3 d1N Kd4 Rg8 Qe6 Nc3 Nd2 Nd5 Bf3 Nc7 Rd1 h1Q Nb3 h2 Rd3 Rh8 Qa6 Rh3 Rh8 Qc1 Rh5 h1N Rd5 Nf2 Qa7 Nfe4 Bg1 Ne5 f7 Qh6 f8Q Ng5 Qfg8 Nf7 Qe2 Ra8 Qg6 Qa6 Qge6 Qb5 Qa5 Ra6 Qad2 Rb6 Qde3 Qa6 Nc1 Rbb1 Nb3 Rh4+ Q3e4 Nd7 Kc3 Rh3 Ba7 Rg1 Q4e3 Nc5 Kd4 Qc4+
n1K3B1/5BpQ/2b5/n1np4/q2k2nN/3prQq1/Q1p2N1B/R1N1rr2 w - - 0 1 legal: proof: f4 e5 g4 exf4 d4 h5 b4 hxg4 c4 c5 a4 cxd4 b5 d3 c5 a6 Ra3 axb5 Rc3 Be7 Rc4 Bh4+ Kd2 Be1+ Kxe1 bxc4 Kd2 Ke7 Kc3 Kf6 Kb4 Ke5 Kb5 f5 e4 d5 h4 g3 a5 f3 h5 g2 c6 f4 c7 c3 Kb6 f2 h6 c2 a6 f3 h7 Bd7 a7 Nc6 Bh6 Nf6 Ne2 g1Q Nd2 Re8 h8N Ng4 Bh3 Na5 Nc1 Bc6 Bf4+ Kd4 e5 f1R e6 f2 e7 Qd7 c8Q Qg3 Ng6 Re1 Qc7 f1N Ne4 Nd2 Nh4 Ndb3 Qf3 Nc5 Nf2 Rf8 Qd6 Rae8 a8Q Rf7 Ka7 b5+ Kb6 b4 Qg6 b3 Qh7 b2 Bd6 Nab3 Qa2 b1N Rf1 Nc3 Rg1 Rc8 e8B Nb5 Rf1 Rfe7 Bf7 Rf8 Bb8 Na5 Bg8 Nf6 Bhe6 Ng4 Bef7 R7e3 Bd6 Nc7 Rg1 Qh3 Bh2 Qg3 Ka7 Ba8 Rh1 Qa4 Rg1 Bc6 Rh1 Be8 Kb8 Na8+ Kc8 Bc6+ Be8 Rf6 Nd1 Rg1 Qf2 Rf1 Bef7 Re1 Nb3+ Kc4 Qg2 Rf2 Qf3 R1e2 Re1 Rf1 Nf2 Kc3 Ra1 Ree1 Nc1 Kd4
1Q1nrKB1/4Q1n1/3p3N/3p4/Qp2N1rp/2r1k1N1/1q2Bpbn/3R1Bb1 w - - 0 1 illegal: No possible last move
n3Rq2/3B1q1n/RK1k1n1b/p5pR/2Q5/1p1r1NpN/n3rp2/Q2N2Q1 w - - 0 1 legal: proof: f4 a5 g4 e5 d4 exf4 g5 c5 g6 cxd4 Nd2 hxg6 Nb1 g5 Be3 g4 Bd2 Rh6 Bc1 Rh8 b4 axb4 a3 b6 a4 Ba6 Bd2 b3 Ba5 Bb5 axb5 bxa5 Kf2 Ke7 c4 d5 h4 f5 e4 g5 e5 d3 b6 d4 e6 f3 b7 d2 c5 f4 h5 d3 c6 Nh6 c7 Nd7 c8Q Ng8 b8N Ndf6 h6 Kd6 e7 Nh7 e8R Ngf6 Qc4 Rg8 Bh3 g3+ Kf1 f2 Nc3 Qd7 Rc1 Qf7 Nd7 Rd8 Ne5 Bg7 Qe1 d1N Bd7 d2 Ke2 f3+ Kd3 f1Q+ Kd4 Ne3 Nh3 Ned5 Nd1 Nc7 Qf2 Qf8 Qg1 f2 Nf3 Qe1 Nf4 Qe6 Rh5 Qef7 Nh3 Rh8 Nb2 d1N Rc3 Ne3 Nd1 Ned5 Rce3 Nc3 R3e5 Na8 Rb5 Na2 Rb8 Nc7 Ra8 Q8g8 Ra7 Nf8 h7 Bh6 Ra8 Qgg7 Ra7 Rg8 h8Q N8h7 Re5 Rge8 Re2 Re3 Ra6+ Ke7 Kc5 Qgf8 Re1 Re2 Kb6 Kd6 Qg7 Rde8 Qh8 R8e3 Qg7 Rd3 Qh8 Rc2 Re8 Re2 Qg7 Ng8 Qb2 Ngf6 Qa1 Na8+
2N1R3/qrn1b1Q1/5QBb/6nN/1qb2K2/k2p1qNb/1b1bQbB1/3rB3 w - - 0 1 illegal: No possible last move
q1b1rb1k/3q2rN/nrB5/N4n2/3QNQR1/3pq3/bQK2Bb1/1B3qq1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 Kd2 Kf7 g4 Kg7 e4 b5 e5 h5 e6 f3 g5 f2 e7 c3+ Kc2 b3+ Kd3 c2 e8B c4+ Kd2 b2 a5 h3 g6 b4 a6 h4 a7 h2 d5 b3 d6 f4 d7 h3 Nf3 Nh6 Bd3 f1Q Rg1 h1B Ng5 f3 Nc3 b1B Nh7 f2 Ra3 b2 Ne4 h2 Rg4 Bg2 Qf3 h1Q Qf4 Kg8 g7 Na6 Rc3 Qc7 d8Q Qfg1 Qd4 f1Q Bc6 Qd7 Ra3 Rb8 a8Q Nf5 Qb7 Ba2 Qbb6 b1Q Qbb2 Rb6 Kc3 Qe2 Be3 Qbf1 Bf2 c1R+ Bc2 Rd1 Bb1 Qe3+ Kc2 Rd3 Qg3 Rdb3 Qf4 R3b5 Rd3 Re5 Nd2 Re8 Nb3 Re7 Na5 Re8 Ng5 Rh6 Ne4 Rg6 Nc5 Kh7 g8N Rg7 Nf6+ Kh8 Nh7 Qh6 Ba4 Qhc6 Ne4 Qa8 Bc6 cxd3+
b3n2N/Q3p1Q1/1B2nq1r/2q1n1r1/2rqN1N1/6b1/1RB1kBrp/5rQK w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ke1 b4 Ra3 bxa3 g4 Kf7 f4 Ke6 Kf2 Kd5 Kg2 h5 f5 b5 g5 d3 c4+ Kd4 g6 d5 c5 b4 c6 b3 c7 b2 a5 a2 f6 a1Q a6 e3 g7 h3+ Kh2 d2 f7 h4 a7 e2 Na3 Kd3 Nb1 d4 Qe1 d1R Na3 b1Q Qa5 Qc2 Bg2 e1N Be3 Rc1 Ne2 Bb7 c8N Nd7 Nc3 Ne5 Nab1 Rh6 Ne4 Nf6 g8Q Ne8 Nbd2 Ke2 Qc3 d3 Qd4 Qc5 Nf1 d2 Qc3 d1R Ncd6 Bg7 f8B Nc2 Bf2 Rd2 Nf7 Nd4 Ne3 Ne6 Ng4 Qdd4 Nh8 Bd5 Qg3 Rc4 Rb1 Rdc2 Kh1 h2 Qh7 Rc8 Bh3 Ba8 Qg1 Rb8 Rb3 Rb5 Rb2 Bf6 Qf7 Bg5 Qg7 Bf4 Bg2 Bg3 Bh3 Qc1 Bg2 Qf4 Bh3 Qf6 Bg2 Bd5 a8Q Bc6 Qa7 Ba8 Nd6 Rd2 Bc6 Ra5 Ne4 Rdc2 Ba4 Rd2 Kg2 h1R Bc2 Rb5 Qh2 Re1 Qg1 h3+ Kh1 h2 Qg6 Rh7 Bh6 Rf1 Bhe3 Rh6 Qg7 Kf3 Be1 Rg2 B3f2 Ke2 Ba5 Rb3 Bd8 Rf3 Ba5 Rf5 Bb6 Rg5
R1Qb1K2/2nrQ1pr/2n3qq/2Nk1BB1/1b1b2N1/2bn1p2/3Q2bn/2B2N2 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 e4 Ke7 Ke2 Ke6 Ke3 c5 Kf4 f5 d4 b5 h4 c3 a5 c4 a6 b3 a7 b4 e5 c2 h5 c3 h6 b2 h7 b3 Bb5 Qd6 Kg5 f4 Kg6 f3 Bh6 c1N Qe2 c2 Nh3 g1B Qe3 g2 Bd3 Kd5+ Kf7 Ne7 e6 Nbc6 Bf5 Nd3 Nd2 b1Q Nf2 c1B Ng4 b2 Nf1 Bd2 Rh3 Bb4 Qd2 Bc3 Bf4 Rb8 a8N Rb7 Rh6 Rd7 Nc7+ Kc4 d5 Bgd4 Rh5 g1B Na6 Qc1 Nc5 b1N Rh3 Bgf2 Rh1 Bh4 Be3 Qg3 d6 Nd5+ e7 Nc7 Bh6 Kd5 Rh3 Rd8 e8Q Rd7+ Qe7 Bhf6 Qf2 Qg5 Qd2 Q5h4 Bf4 Qh6 Rh1 Na3 Rh2 Nc2 Re2 Ne3 Re1 Qhh4 Ra1 Qh6 Ra8 Qg2 Ne5 Ng4 Bg5 Rg8 h8Q Nh2 Ng4 Qg3 Qf2 Ba6 Bc1 Bc8 Qd2 Bh4 Qh7 Rh8 Qg6 Rh7 Kg8 Ba6 Qge8 Bhf6 Qc8 Qg2 Qee3 B8e7 Kf7 Bd8+ Kf8 Bb4 Qee2 Bdc3 Qe7 Bfd4 Qd1 Nf4 Nf2 Qgg6 Ng3 Bf1 Qd2 Nd3 Ng4 Bh3 Nf1 Bg2 Qee1 Re7 d7 Re6 Qee2 B8f6 d8B Rd6 Be7 Rd7 Qee3 Bfe5 Bg5 Bf6 Qee8 Bd8 Qee3 Kd6 Qe7+ Kd5
N3nK1R/qr2b1Q1/2k5/R2bpB2/b1p1n1RQ/b2b2NN/p1q2r1b/7Q w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 h5 Kf4 a5 Kf5 c5 Kg6 e5 Kf7 h3 f4 e3 g4 c3 b4 c4 d4 h2 f5 c2 f6 a3 d5 a2 g5 e2 d6 e1B b5 a4 b6 a3 b7 h4 g6 h3 g7 Kc6 d7 Ra7 Nc3 Bb4 Nd5 Na6 b8Q Rb7 Bb2 c1B Bd3 Nc7 Nc3 Ne8 Nce2 Bg3 Bf5 Rh4 Qf1 Rf4 Qa7 Rf2 Bc3 Bgf4 Ng3 Qa5 Bd4 Qa4 Bc5 Qc2 Kf8 Bb2 d8Q Bd7 f7 Ngf6 g8R Ne4 Qh4 Bbc1 Rb1 a1Q Be7 a2 Qd1 Qd4 Rg4 Bca3 Qf3 Qb6 Rd1 Qc5 Rd5 Qb6 Ra5 Qa6 Qd4 Qa7 Qd5+ Kb6 Qg2 Ba4 Kg8 Kc7 f8N Kb6 Nd7+ Kc7 Qd1 Kc6 N3e2 Bg3 Kf8 Bf4 Nb6 Bg3 Nf3 Bf4 Ng5 Bg3 Rg1 h1B Na8 h2 Nh3 Bf4 Qgg3 Bf3 Rg2 h1B Rh2 Bhg2 Qh1 Bf1 Qgg1 B3g2 Ng3 Bd3 Qg5 N4f6 Qg7 Bd5 Qe1 Ne4 Ng1 Rb6 Rh8 Rb5 Nh3 Rb7 Ne2 Bh2 Ng3 Rd2 Qf2 Re2 Qf4 Rg2 Qfg5 Rf2 Qh4 Bxe7+
Rnr5/Q1Q2rbB/bb1K1pbB/q2p2R1/B2q1k1q/3nR1p1/8/q4NQ1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 b5 c4 g5 a4 d6 h4 f6 h5 b3 h6 b4 h7 b2 c5 b1B a5 d3 a6 d2 e4+ Kf4 a7 g4 c6 b3 c7 b2 e5 Bg6 e6 b1Q e7 Nh6 e8B Ba6 c8Q Qb4 Qc7 Nf7 Bd3 Bg7 Ra5 Rf8 h8Q Ne5 Ba4 Rf7 Nf3 g1B Nh2 g2 Nf1 g3 Qh7 Bb6 Rh5 g1Q Rg5 Qgd4+ Ke6 Ng4 Rae5 d5 Re3+ Ne5 Qe1 d1Q Qf2+ Qf3 Qg1 Qh1 Bf5 Qa5 Bb1 Qh8 Kd6 Nd3 Bd2 Nc6 Bc1 Rc8 a8R Qhe4 Qa7 Qa1 Bd2 Qed4 Bc1 Rb7 Bbc2 Nb8 Bd2 Bh6 Qc7 Bg7 Bb1 Qh4 Bbc2 Nf2 Bf5 Nd3 Bc1 Bf7 Bh7 Bg6 Qc6 Ne5 Rh5 Kg4 Re4+ Kf3 Bh6 Re7 Rg5 Nd3 Re3+ Kf4 Qcc7 Rf7
b3kBK1/1p1qrn2/Q2p1qp1/R1qB2nN/p1n1NQ2/B7/6Np/2Q2rb1 w - - 0 1 illegal: Other
6B1/2b1B3/1N3r1N/K1bR3b/1p1nr1n1/b1q1NbQ1/nk6/1r1Br1BB w - - 0 1 legal: proof: f4 d5 e4 e5 h4 exf4 c4 a5 cxd5 g5 b4 gxh4 a3 axb4 Rh3 bxa3 Re3 fxe3 Bd3 Nd7 Qh5 Qe7 Nf3 Kd8 Bb2 Ndf6 Ke2 Bg4 Nc3 Bg7 Rh1 Kd7 Bc1 Ke8 Ke1 Qd8 Bf1 Nd7 Nb1 Nb8 Ng1 Bc8 Qd1 Bf8 d4 Ke7 g4 Kf6 d6 b5 d7 h5 d5 Ke5 g5 c5 d6 f5 g6 f4 g7 a2 Qc2 Kd4 e5 a1B e6 h3 e7 f3 e8B h4 Qf2 c4 Bd3 h2 Qf1 b4 Ba3 c3 Bh7 f2+ Kd1 h3 Kc2 e2 Kb3 e1B Qa6 f1R Ka4 c2 Beg6 c1N Bh5 Qc7 d8N Bg4 d7 Bg3 Nc3 Nc6 Bb2 Na2 Nf7 Nf6 d8B Bc5 g8B Rb1 Be7 Re8 Be4 Rh6 Bg2 Rg6 Nh6 Re1 Bc1 Bb2 Nd5 Ba3 Nb6 Kc3 Nf3 Nd4 Be3 Kb2 Qd3 Qc8 Bf2 Bc7 Nd2 Re4 Rf1 h1B Qg3 h2 Ka5 Bd1 Re1 Ng4 Nf1 Rf6 Ne3 Be2 Bf3 Bg2 Ra1 h1R Rd1 Rg1 Rd3 Rb1 Bg1 Bd1 Nef5 Re1 Ne3 Be2 Bb7 Bd5 Bc6 Bf7 Bh1 Bf3 Bd6 Re4 Be7 Nc2 Rd5 Nd4 Bg6 Be8 Bf5 Bf7 Bd7 Bh5 Ba4 Qe8 Bd1 Qf7 Rd7 Qb3 Rd5 Qc3
1n1bB2n/1nN2pqn/2b3p1/N1N3q1/7B/k1B1Q1n1/r1B3Bq/4KrR1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 b5 e5 Na3 exf4 Rb1 b6 Rb4 axb4 a5 bxa5 Nb1 a4 Na3 b3 Nb1 b2 Nd2 b1R Nxb1 a3 h4 Ke7 e4 Kd6 c4 Kc5 b6 Kb4 b7 d5 h5 d3 c5 f3 e5 g3 e6 g2 c6 f2+ Kd2 a2 h6 a1N h7 d4 e7 Nf6 e8B Nbd7 b8B Ra2+ Bb2 Bb7 c7 Be7 c8B Bc6 Qh5 Nb3+ Kd1 d2 Be5 Na5 Qf3 Nb7 Ne2 g1N Bh3 f1N Qd3 Nf3 Nf4 Nb8 Bg2 Ng3 Bf5 Nh4 Na3 Ng6 Nb5 Qa5 Nc7 Bd8 Nfe6 Qb5 Bc3+ Ka3 Bf4 Qd5 Nc5 Qe5 Bg5 Qd5 Bed7 Re8 h8N Nh7 Rf1 Re6 Be8 Rf6 Bfe4 Rf4 Bh4 Qg5 Qe2 Rf6 Rh1 Rf3 Ba5 Rf1+ Qe1 Nf5 Ke2 Ng3+ Kd3 d1Q+ Bd2 Ngf8 Ng6 Qa1 Ne5 Ng6 Ba5 Nh8 Qf2 Bd5 Nc6 g6 Bd2 Qb2 Na5 Qa1 Be1 Bc6 Qf4 Kb2 Kd2 Ka3+ Bc2 d3 Bh3 Qg7 Rg1 Qd5 Qg5 Qh1 Bg2 Qh2 Ke3 d2 Qh6 d1Q Bc3 Qf3+ Kd2 Qff6 Qe3 Rf2+ Kd1 Qg5 Ke1 Rf1+
1q1k1n2/B2B2n1/2KQn3/b2brB2/n2N1n2/nBqR1R1R/3Bb3/b1b4r w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 f5 Kd3 b5 c4 g5 a4 d5 h4 b3 e4 b2 e5 b1N h5 f4 c5 f3 a5 g4 c6 f2 a6 b4 h6 b3 e6 b2 a7 Qf6 e7 Bg7 c7 Be6 c8B Nd7 h7 Nf8 Rh2 Nh6 Bd2 Nf5 Ne2 g1N Ra3 g2 Qc1 g3 Qc2 Nh3 Ra5 g1B Nc3 g2 Qd1 Na3 Ne2 b1Q+ Qc2 Qb8 Bc3 Nf4+ Kd2 d3 Bb7 d4 Bc8 Bc4 Qb3 N4e6 Kd1 d2 Qb4 Bh6 Rd5 Nfg7 Ng3 Qfe5 Bd3 f1N Nf5 Ne3+ Ke2 d1N Kf3 Nb2 Bd2 Na4 Bc2 d3 Qd6 Qc3 Ke4 Bf2 Rh4 g1B Rh3 Ng2 Bb3 Bb6 Nd4 Ba5 Rf5 Bg5 Rff3 Ngf4 Ke5 Bf6+ Ke4 Be3 Bd7+ Kf7 e8R Be5 Rd8 Kf6 Be1 d2 Bf2 d1B Bg1 Rg8 h8B Bc1 Bf2 Bde2 Be3 Kf7 Bd2 Nh5 Bf6 Rg1 Bh4 Rh1 Bf2 Nhg7 Bfe3 Qbb4 Bg1 Rb8 a8B Rb5 Bb7 Bf6 Bbc8 Rg5 Bf2 Qb8 Bfe3 Nc7 Bf5 Nce6 Bd7 Rh5 Nc2 Be5 Ba7 Rg5 Nd4 Rh5 Qb6 Ke7 Qd6+ Kf6 Re8 Qcb4 Nc6 Ba1 Bg4 Qc3 Nd4 Kf7 Rd3 Nd8 Re6 Rd5 Bf5 Rc5 Rg6 Nde6 Rgg3 Rb5 Rgf3 Kf6 Qa6 Ke7 Qd6+ Kd8 Qd5 Qc8 Ke5 Qb7 Kd6 Qa8 Qe5 Qb8+ Kc6 Rd5 Qd6 Rb5 Be3 Re5 Bd2 Bd5#
n1q2B1Q/1K5r/1b1Bq1q1/BqN1nN1r/b3N3/5RBn/5bb1/2qk1Bn1 w - - 0 1 illegal: No possible last move
1r1Rb2b/1kb5/1r2Bn2/1br1B1q1/pb6/1nNNN2K/Q2nn1NB/n6N w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 hxg4 f6 g3 Bb2 g2 Ra3 exf6 Bc1 f5 Rd3 f4 Rg3 fxg3 e4 d5 c4 Kd7 h4 Kc6 h5 f5 b5+ Kb7 b6 g5 c5 a5 h6 g4 h7 d3 e5 d4 e6 a3 e7 d2+ Ke2 d3+ Ke3 f4+ Ke4 a4 e8N a2 Rh5 a1N Rh1 f3 Kf4 f2 Qc2 d1B Nh3 g1N Nc3 d2 Nc7 g2 Kg3 Ra5 N7d5 Na6 Nhf4 Qg5 Nd3 Nf6 Qa2 Bd7 Ne3 Bb5 Bb2 Ne2+ Kh2 g3+ Kh3 Rg8 h8N g1B Ng6 g2 Nh4 Bh2 Rg1 Bc7 c6+ Kb8 b7 Nc5 Rh1 g1B Nhg2 Ncb3 Rh2 Ka7 b8B+ Ka6 Rh1 Bb4 Rh2 Bc2 Rh1 d1R Rh2 Bd8 c7 Rb1 c8N Bc7 Ne7 Kb7 N7f5 Be8 Rh1 Rc5 Ng3 Bh2 Rg1 Bb5 Nh1 Bhe5 Nc1 Bg6 Nd3 Bb6 Bc7 Rb8 Bd6 Bd4 Bc7 Bge8 Bh2 Ng3 Be2 f1N Bg4 Ne2 Be6 Nfd2 Rf1 Bc7 Rf5 Nh5 Rd5 Bh8 Rd8 Nf6 Ncd1 Rbc1 Bbe5 Rc6 Nc3 Rb6 Nb1 Rcc6 Nc3 Rc5
3n1b1k/R6q/b2Bnb2/B4RrQ/qB1B2Nq/2q1Rr2/1pq3bK/4B1r1 w - - 0 1 illegal: No proof kernel
Bnkrr1B1/1n2n3/4Rq2/3n1b2/n1qp2bp/2b1QKB1/1B1q4/2R2NBR w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 h4 h6 g4 Na6 g5 hxg5 Bb2 Nb8 Ba3 Rh5 Bc1 Rh8 h5 Nf6 Nd2 Ng8 Ndf3 Qa5 Nh4 gxh4 Ne2 Qc7 Ng1 Qd8 Ke2 e5 c4 d5 a4 Kd7 f4 b5 h6 g5 c5 g4 a5 b3 a6 b2 a7 b1B f5 b4 f6 g3 h7 g2 f7 e3 Qd2 d3+ Kf3 b3 Qf2 d2 Bb2 d1N Ra6 d4 Kg4 e2 Bc3 e1N Ne2 g1Q+ Ng3 b2 Qf3 e4 Rb6 e3 Bd3 e2 Rb3 Ne7 Qf4 Qf1 Bc4 Nd3 Qe3 e1Q Rb6 Qd2 c6+ Kc7+ Be6 Nc5 Ra6 Qfd3 Kf3 Nb7 Nf1 Qc4 Bd5 Bh6 f8B Bh3 Bg8 Kc8 c7 Bbf5 Re6 b1N Bb2 Ndc3 Bg7 Bf4 Be5 Na4 Bd6 Bg5 Bg3 Nbc3 Bf2 Ncd5 Bg1 Kd7 c8R Bf4 Bf7 Re8 h8B Bg3 Bg7 Be1 Be5 Qb6 Rc5 Qc6 Bg8 Kc8 Rb5 Qd6 Bg3 Qe5 Ra5 Qf6 Rb5 Qdc2 Rb3 Bc3 Ra3 Q2d3 Ra1 Qd2 Rc1 Kd7 B1h2 Na6 Rb1 Rad8 a8B Nb8 Rc1 Kc8 Bg1 Bhg4#
3b1k2/RNqn4/4K1Rr/bR1rNrQ1/q3p1q1/N1qR1b2/4R1p1/1Bn3b1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Bf1 b4 Ba3 bxa3 Ke2 b5 c4 e5 h4 g5 f4 d5 h5 b4 c5 d3+ Ke3 a2 a5 b3 c6 d2 c7 b2 a6 d4+ Kf2 d3 Kg3 e3 a7 e4 f5 e2 h6 e1B+ Kg2 g3 Kh3 g4+ Kg2 Nd7 f6 Ne5 h7 Be7 f7+ Kf8 Rh6 Nf6 Rg6 Nfd7 Na3 b1Q Nf3 Qc1 Rb1 a1Q Rb5 Qcc3 Qc1 d1R Qg5 d2 Bd3 Ba6 c8N Qdc7 Bb1 Nd3 Ne5 Nc1 Nd6 Bd8 Nb7 Rc8 Nc2 Qa4 a8R Rb8 Ra7 Rc8 Rd5 Be2 Rd3 Ra8 Na3 Bf3+ Kg1 g2 Kh2 g3+ Kh3 g1B Kh4 Bg2 Kg4 Bf3+ Kf5 g2 Ke6 Rb8 Nc5 Rb5 Nb7 Rg8 h8R Rc5 Rh3 Rh8 Re3 Rh6 Re2 Ra5 Ng4 Rf5 Ne5 Bef2 Rh5 Bb6 Rh3 Ba5 Rg3 Bg4 Rd3 Bf3 Ng4 Rf4 Ree3 Be2 Rd5 Rf3 Rb5 Rf6+ Kd5 Ke7 Ne5 Bh5 f8R Bg4 Qh5 Rff1 Rf5 Ke8 Rfg5 Rf5 Ke6 Kf8 Qh4 Re1 Rh5 d1Q Qg5 Qf3 Rh4 Rd1 Re2 Rd5 Rh3 Qf4 Rhe3 Bf3 Rd3 Qg4
qbn2k2/qp1pR1Nr/r7/q1NrRr2/3B2pN/2Nr4/1Kb2R2/1n4QN w - - 0 1 illegal: Other
3qB1K1/n3Q3/1Q2RqQr/3b1B2/1n2NQ2/nb4rQ/2rnq2b/2rk1N2 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Ra3 exf4 Bd2 b6 Bb4 axb4 a5 bxa3 axb6 Bg7 Rh2 Bh6 Rh1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kf3 Ke5 g4 h5 e4 f5 c4 h3 g5 h4 c5 h2 b7 h3 c6 a2 b6 a1N c7 d3 g6 Kd4 g7 d2 e5 Ne7 g8Q Ra2 e6 Na6 b8Q Bb7 c8Q Nc2 Qbc7 Na3 Qg5 Rh6 Q7b8 Nc6 e7 Rc2 e8B Na7 Bd3 Bd6 Qc6 Nb4 Qe2 d1B Kf2 f3 Qcc8 f4 Kf1 f2 Qeg4 Ke3 Nd2 d4 Ne2 Bd5 Bf5 d3 Ne4 d2 b7 Qf6 Rg1 h1R N2g3 h2 Kg2 f1N Qcc7 Kd3 Qh3 f3+ Kf2 Be5 Qg6 Bf4 Rg2 Rg1 Qe7 h1R Qbd6 Be5 Qb6 Bc7 b8Q Bf4 Nh5 Bh2 Rg4 Rg3 Qf4 Rc8 Rg5 B1b3 Rg4 Kc2 Rh4 Rg4 Nhg3 d1Q Rh5 Nd2 Ke3 f2 Nf1 Kc1 Rg5 Rc2 Rh5 Qe6 Kd4 Rg3 Rh4 Qg8 Ke5 Qe2 Kf6 Kd1 Rg4 Qe6+ Kg7 Qd6 Kf8 Qd8 Rg5 Rgc3 Rg3 Rg1 Re3 Rg3 Nc5 Rc1 Re6 R3c2 Ne4 Rgc3 Nfg3 f1Q Kg8 Qff2 Nf1 Rg3 Qeb7 Qd4 Qe7 Qf6
6Bk/3n4/1b1Q3p/1bq1bqb1/1R1n1BQ1/3bqrR1/3r1BBN/2Bb2K1 w - - 0 1 legal: proof: c4 b5 cxb5 e5 f4 exf4 a4 g5 h4 gxh4 d4 d5 a5 c5 a6 c4 Nf3 c3 Nbd2 c2 Nc4 dxc4 d5 Qxd5 Ng1 c3 Qd3 Qd8 Qd2 Bxa6 Qd1 Bc8 Kf2 f5 b4 Kf7 g4 Kg7 e4 a5 g5 f3 e5 f4 b6 a4 b5 h6 g6 a3 e6 h3 b7 a2 b6 h2 e7 Qd3 e8Q Bc5+ Qe3 Nd7 b8B Ra3 b7 Ne7 Bb2 c1Q Bh3 Nf5 Bg2 Nd4 Qe6 c2 Ne2 Rd8 Bc3 Qce3+ Kf1 c1B Qdb3 f2 Rg1 h1Q Bd2 Bb6 Qa4 Kh8 Rb1 a1B Rb4 Qf5 Ng3 Qhh5 Qd6 Qc5 Bc7 Qhf5 b8B Bb7 Ba7 Bf3 Bcb8 Bd1 g7+ Kh7 g8B+ Kh8 Bf3 Bab2 Kg2 f1B+ Kh2 Bb5 Bg2 f3 Nf1 f2 Kh1 Qe2 Nh2 f1B Bg5 Bf4 Bc7 Be5 Bc1 Qe3 Bcb8 Bh5 Qd1 Bfd3 Qg4 Bc3 Rf1 Bd2 Rf3 Rb3 Rg3 Rc3 Qh3 Bd1 Qg4 Qe2 Kg1 Bg5 Bc7 Qe3+ Kh1 Ra8 Nf1 Qee4 Qe2 Nc6 Nd2 Qcc4 Rb2 Bg7 Qe6 Bg1 Bf4 Bb1 Bh7 Be5 Qg4 Rf3 Rb4 Bd3 Bg8 Bc5 Bb6 Ra2 Nf1 Rd2 Nh2 Bf2 Bd4 Qe2 Qd6 Qc2 Bdb2 Bb6 Bd4 Qc5 Bf2 Qee3 Kg1 Nd4
2bb1bB1/q1B1B3/2Bnn2r/N1Q2nr1/nQn4r/6rk/2R4q/2B2KRq w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 c4 Kf7 h4 Kg6 f4 Kf5 a5 e5 a6 g5 a7 d5 h5 b5 h6 e3 c5 d3 c6 d4 c7 e2 h7 e4 Kf2 e1Q+ Kg2 e3 Ra2 b4 Re2 a2 Bd2 a1Q Rh5 b3 Qb1 g3 Qc1 Kg4 f5 b2 f6 b1N f7 Na3 Nh3 Qd6 Qb2 Nb5 Kg1 g2 Qb4 Ne7 Qb2 Nf5 Qb4 Nd7 Rh6 Nc5 Qc3 Ne6 Bc1 d2 Qa3 d1N Qa6 d3 Bd2 Nb2 Qc6 Na4 Bc1 d2 Qb7 d1N Rc2 e2 Nf4 Nde3 Rh1 Nc4 Ng6 Kg3 Qb8 g4 Ne5 Qdd2 Qb7 Nbd6 Nc6 Rb8 Qb4 Rb6 a8B Qed1 Qb2 e1B Na5 Q2e2 Bd5 Bc3 Qb5 Bf6 Bc6 Bd8 Qb4 Qed2 Rh6 Qf4 Rg6 Kh3 Rg7 Qh2+ Kf2 Ne5 Bc4 Qdh1 Rg5 g3+ Ke2 Bh6 f8B Ra6 B4d5 Nec4 Be7 Bf8 Rg4 Qd4 Rg7 Qa7 Rg6 Rg8 h8B Rg7 Rg4 Rh7 Be5 Rh4 Rg8 Bd7 c8Q g1R+ Kd3 g2 Ke2 Rb6 Qc7 Bc8 Rg5 Nec5 Bg8 Ne6 Kf2 Rf1+ Ke2 g1R+ Rg2 Ra6 Qcb6 Rf3 Q6c5 Rg3 Bef4 Ne4 Bc7 Rg5 Rf2 R1g3 Rg2 Nf2 Rg1 Ne4+ Ke1 Ned6 Kf1 Rb6 Qa3 Rbb3 Qb2 Rbe3 Qbd4 Ree4 Qb4 Rh6 Qdc5 Reh4
Nbq3Q1/qb5r/2QQb1Q1/Q1Rnb2N/1r6/2nb4/B4b2/knn1RnK1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 e4 Ke7 c4 Kd6 h4 Kc5 a4 d5 a5 f5 h5 b5 e5 g5 h6 d3 a6 Kd4 e6 f4 c5 g2 Kf2 f3 h7 d2 a7 b3 e7 b2 e8Q b4 c6 b3 c7 Na6 Bb5 Nf6 Bc4 Be6 c8Q Bg7 Rh4 Nc5 Rh1 Rb8 a8Q Rb4 Qf1 d1N+ Kg3 f2 Kh2 Nc3 Qaa6 Nd3 Qaa8 Nc1 Na3 b1B Qca6 b2 Qe7 Qc8 Q6c6 Bd3 Qcb7 b1N Nh3 g1B+ Kg2 g3 Qbc7 g4 Qe2 f1N Qe1 Be3 Qcd6 Bf4 Qdc6 Bb8 Kg1 g2 Kf2 g1B+ Kg2 g3 Nf4 Be3 Rh5 Bf2 Kf3 g2 Qa5 g1Q Ba2 Rf8 h8Q Rf7 Qg8 Bh8 Qd2 Rh7 Rf5 Qg7 Qed6 Qa7 Kg2 N1e2 Nh3 Nce4 Qh6 Bc4 Qb7 Kc3 Qab5 Kb2 Qgf7 d4 Q5a6 d3 Rc5 d2 Qg8 d1B Qhg6 Nbd2 Qa5 N4c3 Nf4 Bd3 Nb5 Ba4 Rc1 Ndb1 Nh5 Nfd5 Nc7 Ka1 Re1 Bc6 Na8 Be5 Qbd7 Bb7 Q7c6 Nc1 Kh1 Bfg3 Kg1 Bf2+
1qQ1b1K1/4kN1Q/B1B2qbN/4rrQr/1r3Q2/4rRb1/1q1r1nq1/Q4n2 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 e5 a4 exf4 Na3 c5 Nb1 cxd4 Ra3 h6 Rg3 f3 Bf4 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 Kd2 b5 Kd3 f5 h4 d5 c4 f2 e4 g4 g7 b3 h5 b4 e5 b2 a5 b3 c5 f3 a6 f4 h6 g3 h7 g2 c6 Bf5+ Kd2 d3 Kc3 d4+ Kc4 d2 c7 d3 c8B Nh6 g8Q Bg6 e6 Ng4 a7 Ne3+ Kb5 Na6 Kc6 Nc5 e7 Ne4 Nc3 b1Q Bh3 b2 Nce2 Qb8 Qc1 d1B Qgc4 d2 Rh2 Ba4+ Qb5 d1R Bc8 Rd2 Nh3 g1Q Bf5 Qg2 Ng5 Qa2 Rh3 b1R Ng3 Qb2 Be2 f1R Nf7 Nf2 Be4 Re1 Nf5 Nf1 N5h6 Bg7 Bc4 Be5 Rg3 Re3 Be2 Rf8 h8Q Bc7 Qh7 Rh8 Qc4 Re1 Bd5 Re5 Bd3 R1e3 Qd4 Ng4 B3c4 f2 Be2 f3 Qf4 Qc8 Be4 Rb8 a8Q Rb7 Rh3 Qb8 B2d3 Bd1 Qd5 Rb4 Qa1 Ba4+ Kc5 Ng3 Bc4 f1R Ba6 f2 Bf3 Rg1 Be4 Nf1 Rf3 Rf5 Qde5 Rh1 Bd5 Rhh5 Qg5 Kd7 Qef4 Be5 Be4 Re8 Bd5 Nfh2 Bdb7 f1Q Ba8 Nf2 B8b7 Rde2 Kd5 Rd8 Ba8 Ke8+ Ke6 Rdd2 Be4 Bc7 Qfh4 Bg3 Qhf4 Re5+ Kf6 Bc6 Kg7 Rf5+ Kg8 Re1 Bed3 Ree5 Bdb5 R1e3 Nh8 Kd7+ e8Q+ Kd6 Qc8 Bce8 Qa2 Qfa1 Bc6 Nf1 Qa5 Qac1 Qa1 Qcc3 Qcc7+ Ke6 N8f7 Qd4 Qb7 Qdd8 Qc7 Qf6 Qc8+ Ke7
b4r2/2B4q/1N2B1R1/1bB2b2/pK1qB3/Bb3Rbn/3bkn1n/qr4QQ w - - 0 1 illegal: No possible last move
3r1N2/R2r2Q1/1br3b1/p1R1Rqb1/1qbqnnQ1/3b3R/2B1qR2/4kN1K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 b4 Ke7 h4 Ke6 c4 Kf5 e4+ Kf4 b5 Ke3 c5 d5 h5 a5 c6 g5 b6 f5 b7 d3 c7 a3 e5 a2 h6 f4 e6 g2 h7 d4 e7 g3 e8R+ Qe7 Rd8 f3 Rd6 g4 Na3 Ra7 Rb1 a1Q Rdb6 Nd7 b8Q Ngf6 Re6+ Ne5 Rd6 Bf5 c8R Bg6 Rc7 Ne4 Rcc1 Rd7 Rbb6 Qb1 Rh5 Bh6 Qa8 Bg5 Rc5 Rhd8 Ne2 g1R h8R g2 Rc2 g3 Rd5 Qeb4+ Rd2 Rh1 Qc8 g1Q Nb5 g2 R5h7 Rh6 Qc3 Qh2 Nf4 g1B Ne6 Qh5 Bh3 f2+ Kf1 Qe2+ Kg2 f1B+ Kh1 Kf2 Nbc7 Qc2 Rbd6 Qcb1 Ra2 d2 Nf8 Nd3 Rc5 Nf4 Re6 d3 Nd5 Qc2 Rb2 Qb1 Qa4 d1Q Qg7 d2 Re5 Ke1 Ne3 Qbd3 Ra2 Q1b1 Rac2 d1B Rb2 Bb3 Rbc2 Bh4 Bf5 Qdd4 Ra2 Bc4 Rd2 Qed1 Rf2 Bfd3 Nf1 Qe2 Ne3 Be8 Nf1 Rc6 Bg6 Bg5 Rh3 Nd2 Be4 Bg6 R8h7 Bb5 Bf5 Bdc4 Bc2 Ne4 Qb3 Bd3 Qe6 Bbc4 Qg4 Q1b2 Rf5 Qf6 Rfe5 Qd4 Rfh2 Be3 Rf2 Qf5 Qg8 Rd5 Ra7 R5d7 Qg7 Qdc3 Rcd5 Bb6 Rc5 Qd4
4rBNN/n5r1/qNnb1qp1/Q1BqN1k1/b4q2/1rn5/1R3n1K/3q1QN1 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 e5 d4 exf4 a4 c5 g5 cxd4 Bh3 g6 Bf5 gxf5 g6 f3 g7 f4 Ra3 Ra5 Rc3 Ra6 Rc6 Ra8 Rg6 hxg6 Kf2 Ke7 h4 Kf6 c4 d5 e4 b5 h5 b3 e5+ Kg5 a5 f5 c5 d3 a6 d2 e6 d4 a7 b4 h6 b2 h7 d3 e7 b3 e8Q Ne7 g8N Nbc6 Qe2 d1Q Qd2 Bd7 Qe2 d2 Nh6 Nc8 Q8e3 Bd6 Rh4 Re8 Na3 b1R h8B b2 Bd4 Re7 Qc4 Rg7 Qe5 Rb8 a8N N8a7 Qb5 Qa5 Rh2 Re8 Qe1 Qd8 Kf1 f2 Kg2 f1Q+ Kh1 f3 Nc4 f2 Qa5 f4 Ne5 f3 Nb6 Qb5 Ng8 Qf6 Qf1 Qc4 Be3+ Qcf4 Bd4 Qb3 Be3 d1N Bcd2 Qd5 Bb4 Ra1 Ba3 b1N Bd4 Nbc3 Rg2+ Qg4 Kh2 Rb1 Bb4 Rb3 Ba3 Nd8 Bb4 Bb5 c6 Ba4 c7 Ndc6 c8N Qg3+ Kh1 Qg4 Rh2 Qgf4 Bdc5 Bc7 Nd6 Bb8 Qe1 f1Q Rb2 Qa6 Qe2 f2+ Qf3 f1Q Ndf7+ Kh4 Nh8 Kg5 Bf8 Bd6 Bc5 Qfd3 Kg2 Q3d4 Kh1 Nf2+ Kg2 Qc1 Kh2 Qdd1 Qd3 Qe3 Qf1 Qef4#
bQ2Q2b/2Q1q1Qb/r1q5/B2knb2/1bqqN1Q1/K2N1Rb1/1p1r3n/4R3 w - - 0 1 illegal: No possible last move, all moves rejected
1bkNb1N1/4n2N/pq4p1/3N2n1/1B3Bb1/1r1rN1bQ/1q1R1Q2/2b1nKq1 w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 f5 e5 Qe2 e4 Qd2 Bg7 Qd1 Bf8 b4 Qc7 g4 Bb7 Bc4 Bg7 Bf7+ Kf8 Bg6 Bc8 Ra3 Qb6 Rf3 Qd8 Rf4 gxf4 g5 Bh6 Bh5 Bg7 g6 Ke8 Na3 Bf8 Nb1 Qb6 g7+ Kd8 Bg6 hxg6 Ne2 Ke8 Ng1 Qd8 h4 e5 c4 d5 c5 Kd7 h5 a3 f6 d3 b5 a2 f7 a1B b6 d4 h6 e3 h7 e4 b7 a6 Rh2 d2+ Ke2 f3+ Kf1 d3 Na3 f2 Rh4 e2+ Kg2 e1N+ Kf1 e3 Nb1 Nh6 g8Q Be5 Rc4 Nc6 b8B Qb6 Nc3 Ne7 Qc2 d1Q Re4 d2 Nh3 Qh5 Nf4 d1Q Ncd5 Qd2 Bd6 Qh2 Rd4 Rb8 c6+ Kd8 Bb4 Bg4 c7+ Kc8 Qb3 Qb2 Rd2 Bd6 Qg7 Rg8 Qe5 Bg7 f8N Nf7 h8N Ng5 Qd4 Bh6 Nh7 Rd8 Ng2 Bg3 Ndf4 Rb7 Qf6 Rd3 Nd5 Be5 Nf7 Bd6 Qf3 Rb8 Ke2 f1B+ Kd1 Rc3 Nhf6 Qd4 Rd3 Nh3 Nd8 Nc2 Ne6 Kb7 Ba3+ Qb4 Rd4 Bb5 Nh7 Bhf4 Rd3 Ng5 Ke2 Qa5 Kf1 e2+ Kf2 e1B+ Kf1 Bh4 Qf2 Ne1 Be3 Bde5 Bd6 Qb4 Bec5 Bc1 Nd8+ Kc8 Be3 Kd7 Bf4 Ba4 Rd2 Qc5 Qc4 Rbb3 Qd3 Qb6 Qh3 Rd3 Nge3 Bg3 Ba3 Ng8 c8N Bb8 Nce7 Bb5 N7f5 Ne7 Bb4 Kc8 Nh6 Be8 Ng8 Qg1+
2rQQ3/3nq1K1/k1n1QRb1/b1nQ4/rr3N2/3q1bBp/1N3p1q/3Qr2R w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 a3 gxh4 e3 Nh6 Bc4 Ng8 Ba2 b3 Kf2 bxa2 Ke2 Ra7 Ke1 Ra8 Ke2 b5 Kf3 d5 c4 Kd7 Kg4 Kc7+ Kh5 Kb6 g4 f5 a4 d3 g5 d4 g6 b4 g7 d2 c5+ Ka6 a5 d3 e4 h3 c6 b3 c7 h2 e5 f3 e6 f4 e7 b2 e8Q f2 Qb3 f1Q Qef7 d1B+ Nf3 d2 Qa4 Qe7 Qe4 Qd3 Qb4 Nc6 Qd6 Bf5 Nc3 b1R Qfd5 Nf6+ Kh6 Nd7 Ng5 f3 Nh3 f2 Nf4 Bg6 Na4 Rb4 Nb2 Bf3 Q5e6 d1R c8Q+ Kb5 a6 Re1 Rb1 a1N a7 Nb3 Qd8 Nbc5 Qdd5 Rc8 a8Q Rg8 Qb8+ Ka6 Qbd6 Ra4 Bd2 Rb8 Bc3 Rbb4 Bf6 Rh8 Bh4 Rg8 Bg3 Rh8 Rg1 Rg8 Rg2 h1Q+ Rh2 Qg2 Rh5 Rh8 Rf5 Qg1 Rf6 Qh2+ Kg5 h5 g8Q Bg7 Qge8 h4 Rc1 Rg8 Ra1 Bh8 Kh6 h3 Rd1 Re5 Rh1 Re1 Rf8 Bc3 Rf6 Qc2 Qd1 Qd3 Qed5 Rb8 Q5e6 Ba5 Qdd5 Rc8 Q6f7 Rh8+ Kg7 Rh5 Qe6 Rhe5 Qd5 R5e4 Qe6 Reb4 Qd5 Qd6 Qfe6 Qe7+
rn2BQr1/b1N1n3/1Q5Q/K1nb3b/R3Qpr1/B1Q1rq1p/4k3/3N2qq w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ra3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kd2 Ke7 e4 Ke6 c4 Ke5 g4 f5 c5 b5 g5 h5 c6 d5 c7 d3 Kc3 f3 a5 f2 a6 d2 g6 Kf4 g7 Ke3 a7 a2 e5 a1N e6 b4+ Kb2 d4 e7 h3 e8Q+ Be6 c8Q b3 Bd3 f1Q Rh2 f4 Bc2 h4 Qc4 d3 Kc3 b2 Qec6 Qd5 Qb6+ Bc5 Rf2 h2 Ne2 h1Q Ba4 h3 Na3 b1R Be8 Nb3 Nb5 Ne7 g8Q Qdf3 Ba3 Bd5 Nc7 Qfg1 Qf8 Rg8 Qc2 d1R Qfh6 Bd4+ Kb4 d2 Nc3 Nc5+ Ka5 Rb3 Qf5 Rc1 Qff8 d1B Ra2 Rc2 Ra1 Rcg2 Qcb4 Be2 Nd1+ Kd3 Qc4+ Kd2 Ra2+ Ke1 Ra1 Re3 Qc3+ Kf1 Rb1 R2g4 Rb4 Bd3 Ra4 Bg6 Qf5 Ke2 Qe4 Nba6 Qg5 Bh5 Qgh6 Rb8 a8Q Rd8 Qaa7 Ra8 Qbf6 Nb8 Qff8 Nca6 Qb7 Ba7 Qbb6 Nc5
2rrn1N1/RqQ1bpn1/1Q3Q2/pN2b2b/1r1Q4/5q2/KR2nq1k/2qB1Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 Kd2 Ke7 Kc1 Ke6 h4 Ke5 e4 Kf4 c4 d5 b4 g5 Kb2 a5 c5 g2 c6 Kg3 h5 d3 b5 d2 c7 d4 b6 d3 b7 a3+ Kb3 a2 e5 Qd7 h6 Na6 b8Q Nf6 h7 Nh5 e6 Be7 Nh3 g1Q Bg2 Ng7 Nf4 Qf2 Qb4 Rd8 Qf1 d1Q+ Ka3 d2 h8Q Qdf3+ Nc3 d1Q Rc1 a1B Rh2 Q7d5 Bh3 Qb7 Nd5 Qde1 Rc2 Qc1+ Ka2 Bd7 c8Q Nc7 Qc5 Nce8 Nb5 Be5 Q8c7 Rac8 Nf6 Bc6 Qa7 Be4 Bg2 Bg6 Qd4 Bh5 Rb2 Qb8 Rh1 Qbb7 Rg1 Kh2 Ng8 g3 Qdb6 Qd3 Bf3 g4 Bd1 g2 Qh6 g3 Qf6 Qdf3 Qd4 Bb4 e7 Ba3 Qfc4 Bad6 Re1 g1N Qf1 g2 Re4 Ne2 Qcb6 Nc7 e8Q g1R Qd7 Nce8 Qdc7 Rg4 Re3 Bg3 Re7 Bge5 Rd7 Be7 Qcc5 Qb8 Ra7 Qbb7 Qcc7 Rf4 Qd3 Rc4 Qdd4 Rb4
3N1Qr1/1rkbNR1Q/Q7/2r1R3/2qp1b1q/3rn1qr/2Qpn1r1/1K1Q3B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 b5 Kc1 d5 a4 Kd7 e4 g5 c4 f5 h4 g2 h5 b3 c5 g3 h6 d3 e5 d2+ Kb2 f4 a5 b4 a6 g4 a7 f3 h7 f2 c6+ Kc7 e6 Bd7 e7 Nh6 e8Q Nf5 Nf3 g1R Qe5+ Bd6 Ng5 g2 Bd3 f1Q Qe6 g3 Ra5 Ne3 Nh3 Bf4 Ra6 Qh4 Bf5 Qc4 Nc3 Rf1 Rg1 Rf3 Re1 g1Q Kb1 b2 Ng5 g2 Be4 Qgf2 Rb6 g1R Nf7 Rg2 Nd8 Qfg3 Rb7+ Kc8 Qe8 Nf1 Rb6 Rd3 c7 Rh2 Rg6 Qh5 Rg7 Qa2+ Kc2 Nc6 Bh1 Rg2 Qg4 Qhh3 Re5 b3+ Kd1 Qh6 Rf7 Nd4 Ne6+ Kb7 c8Q+ Kb6 Ne4 b1R+ Qc1 b2 Nf6 Ra1 Ng8 b1R Ne7 Qa6 Qc8 Ra5 Qe2 Rb8 a8Q Qc4 Qg8 Re8 Nd8 Kc7 Qa6 Rc5 Qf3 Rf8 Qg7 Rfg8 Qf8 Rb7 Qc3 Nb5 Kc2 d4 Qd1 Ne3+ Kb1 Qh5 Qcc2 Nc3+ Ka1 Ra7 Kb2 Ne2 Kb1 Rb7+ Qb3 Rg5 Qb2 Rhg8 h8Q R5g7 Qhh6 Rh7 Qhg7 Rh6 Qh7 Qhg5 Qbb3 Rh3 Qb2 Q5h4 Qbb3 Ra7 Qbc2 Rb7+
2Br4/bR2b3/Q3B3/rr1n4/b2B1bpk/r1q3p1/q2QK2B/1Rn1BrN1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 c4 Kf7 f4 Kg6 h4 Kh5 c5 d5 f5 g5 c6 e5 c7 b5 f6 d3 f7 a2 a5 d2+ Kf2 b4 a6 b3 a7 d4 Bb5 d3 Rb1 a1Q Ke3 b2 Ba6 Bd7 c8Q Ne7 Qe2 d1R Nh3 d2 Rh2 Qc7 Rh1 Rf1 Bb5 d1R Qf2 g3 Ba4 g4 Qb7 Qa2 Bb5 Qc3+ Ke2 e3 Ng5 e4 Qa6 Nbc6 Bc4 Nb4 Rh3 Ba4 Bd2 Ned5 Be1 Rd3 Nf3 Be7 f8B Rd8 a8B Rg8 Bc6 Rg5 Ng1 Rf5 Rc1 Re5 Rh1 b1R+ Rc2 Rb3 Bb7 Ra3 Qh2 Rd1 Bh6 Nd3 Bc8 Rb1 Rd2 Rb5 Rb2 Bc5 Bf8 Ba7 Bc5 Rg5 Bb3 Nc1+ Kd1 Ra5 Qd2 Nc7 Bb6 Rgb5 Rb1 Nd5 Rh2 Kg6 h5+ Kg5 Rf2 Kh4 h6 Qc5 h7 Qc7 Qb2 e2+ Kd2 Qg7 h8B Qe5 Rf7 e3+ Kc2 Qd4 Rb7 Qb4 Bhd4 Qc4+ Bec3 e1B Kd1 Qb4 Bd2 Qc3 Bbc5 Bf2+ Be1 Bb8 Qc2 Bf4 Qd2 Qaa1 Be5 Qd3 Nh3 Nb6 Bc3 Qd5 Bg7 e2+ Kc2 Bd4 Bh8 Bf6 Bg1 Be7 Bh2 Qa2+ Bb2 Qe5 Ng1 Qd4 Bf2 e1B Kd1 Qb4 Bg7 Nd3 Ke2 Qc3 Bbe6 Nd5 Qc2 Bed2 Be1 Bde3 Qd2 Ba7 Bd4 Nc1+
Kr2kN1b/1rB2rqB/Q1r2B1n/1R2r1B1/1n1Bp3/2Q5/2Npn3/3n2qb w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 a5 h4 g5 f4 e5 b4 d5 c4 g3 c5 a3 h5 e3+ Kd3 g4 h6 g2 f5 e2 c6 e1R b5 g3 h7 a2 f6 a4 b6 a3 c7 Na6 b7 Ra7 b8B Qe7 Ne2 g1N Qd2 g2 Qc3 Bg7 Bg5 Bb7 Nf4 Nh6 Ng6 Ne2 Nf8 g1Q Rh5 Rg8 Bh3 Bh8 Bf5 Qg7 Be4 Ba8 Bf5 Rb7 c8Q+ Kf7 Q8c4 Ke8 Bc7 Rf1 Nd2 Rf4 Rb1 a1R Nf3 a2 Ne1 Re4 Rb6 Rc1 Nc2 a1R Rb5 Ra5 Rb4 Rf4 Rb3 Nb8 Qa6 Nc6 Rb2 Rb8 Rb6 Rc8 Rb8 Nb4+ Kd2 d3 Be4 Rf2 Ke3 d2 Bf5 Na2 Kd3 d4 Kc4 d1N Bd3 Ra4+ Kb5 Nb4 Kb6 Bh1 Ka7 Ra5 Bf5 e4 Ka8 d3 Bg6+ Qf7 Bf5 d2 Bg6 Bg7 h8B Re5 Bh7 Rb1 Rh3 Qg6 Rd3 Rb3 Rd5 Rb2 Rb5 Rff5 Bd8 Rc6 Bc7+ Kf7 Rd5 Nd3 Ne6 Rb7 Qb4 Rc8 Qc3 Nb4 Rb5 Ke8 f7+ Kd7 f8B Ke8 Bc5 Rf7 B5b6 Bf6 Bd4 Qg8 Bg7 Qh8 Bf8 Qg8 Be7 Bh8 Nf8 Qg7 Bef6 Rcxb8+
r1Q1n3/1R2p2K/4QN2/2q3bQ/1b2B3/pqrqnb1b/2Bq2kN/Q1Qq4 w - - 0 1 legal: proof: f4 b5 d4 g5 a4 bxa4 g4 c5 b4 cxd4 e4 f5 Bd2 fxe4 f5 h6 Bf4 Qa5 Ra3 Qc7 Rg3 gxf4 g5 Qb6 g6 Qd8 Rg5 hxg5 Kf2 a5 h4 d5 c4 Kd7 c5 Kc6 g7 f3 Kg3 e3 Kg4 d3 h5 a3 h6 e2 Kh5 e1B Kg6 f2 f6 a2 h7 a1Q f7 d2 Qh5 d1Q Qe2 d4 b5+ Kd5 c6 d3 b6 a4 b7 g4 c7 a3 Nh3 g3 Qa2+ Ke4 Qb3 Kf3 Nf4 g2 Nh5 Nf6 g8B Na6 b8Q Nb4 Qe6 d2 Qb5 Ne8 Bd3 f1Q Bc2 Qa2 Nf6 Bh6 f8Q Bg5 Qh6 g1Q Qc5 Nd5 Qh5+ Kg2 Qc3 Bb7 c8Q Qb3 Rh4 Bc6 Rb4 Bd7 Rb7 Ne3 Bf7 Rf8 h8Q Qa6 Kh7 Qd3+ Bg6 Qf2 Qd6 Bh3 Qde6 Qa5 Qb2 Qc5 Qc1 Qfe2 Nd5 Rf4 Qa1 Rc4 Nf6 Rc3 Be4+ Qf3 Rb6 Q1e2 Rb8 d1B Nd2 Qf2 Nf1 Qfd2 Nh2 Be2 Bg6 Qf1 Bf5 Bf3 Be4 Qfe2 Rb7 Qed1 Qf5 Bg3 Qfg6 Bc7 Qgf5 Ba5 Qfe6 Bb4
r2n1bN1/1n5p/1pn1RR2/3q3q/2Q1nr2/1q2bR2/RQ2Nq1R/3BkbK1 w - - 0 1 illegal: No possible last move, all moves rejected
qrBnK2Q/1pQb2bb/1pR5/3RB1kB/q4Nnq/b3B3/4n3/1r1B3n w - - 0 1 legal: proof: f4 e5 b4 exf4 d4 c5 g4 fxg3 b5 cxd4 b6 axb6 Be3 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Bf4 Na6 Bc1 Nb8 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf4 g5+ Kf3 g4+ Kf4 d3 e4 d2 h4 d4 a4 d3 c4 Bg7 c5 Nc6 a5 Nh6 a6 Rb8 h5 Bd7 Qc2 d1B a7 d2 Nh3 g1Q a8Q g2 Be2 g3 Ra5 Ng4 h6 Qe1 h7 g1N Qc3+ Kg6 e5 f5 e6 g2 e7 Bc2 Bd1 Qh4 e8B+ Kh6 Bh5 Ne2+ Kf3 g1B Nf4 Rf8 h8B Kg5 Qe5 Qe8 Qc7 Nd8 c6 Bc5 Re1 Ba3 Rd5 Ng3 Re4 Nh1 Rc4 Rf7 Rcc5 Re7 Rc3 Re4 Rcc5 Rb4 Rc4 Rb1 Rcc5 Bf8 Be5 Bg7 Rc3 Nh2+ Ke3 Ng4+ Kd4 Bd3 Qc8 Bc2 c7 Be4 Rc6 Bc2 Bf3 d1Q+ Bd2 Bd3 Be3 Qc2 Bd1 Qg8 Qa6 Qa4+ Qc4 Qf8 Rdc5 Qe8 Kd5 Qg8+ Kd6 Qh8 Ne2+ f4 Ke7 Bh7 Qd4 Qg8 Qd6 Qa2 Rb5 Qa8 Rd5 Qc2 Qc5 Qca4 Qd6 Nf7 Qh8 Nd8 B3d4 f3 c8B f2 Nf4 f1N Be3 Nfg3 Qc5 Bdf5 Ke8 Ne2 Qd6 Be6 Qc7 Bd7+
1b2n2B/1k2K2r/N1bQ4/1bnRp1qr/p2qR3/1q6/bRB1np2/1RQR4 w - - 0 1 illegal: No possible last move
bqQn3b/3b4/NBQ5/1K2ppk1/1qn1Rpnr/2p1R3/Rr1rB3/3R1R2 w - - 0 1 illegal: No possible last move, all moves rejected
1R4b1/2Knnk2/1N2qr1p/p2Q2qp/1R2Qn2/b2b1pqr/3B1RR1/2B3R1 w - - 0 1 legal: proof: d4 b5 e4 c5 h4 cxd4 a4 bxa4 f4 e6 f5 g6 e5 Qf6 h5 gxh5 Bd3 Qe7 f6 Qd8 Bf5 exf5 e6 Be7 Na3 Bb7 Nb5 Bf8 e7 Bc8 Nc3 Qc7 Ne4 Qb6 Ng5 Qd8 Ne6 fxe6 Bh6 Kf7 Bd2 Ba6 Bc1 Bc8 Kf2 d5 Kf3 a3 Kf4 a2 Ke5 d3 b4 h6 g4 d4 c4 f4 b5 d2 b6 d3 c5 Ba6 c6 Nd7+ Kd6 e5 g5 e4 b7 e3 b8R e2 c7 e1Q c8R Qg3 Rab1 a1Q Ne2 Qa2 Rg1 Bc4 Qb3 d1N Nc3 d2 Na4 Nc3 Nb6 d1B Bd2 Be6 Qd5 Ne2 Rb4 Bc2 Rg2 Bh7 Rc2 Bd3 Kc6 a5 Bc1 f3 g6+ Ke8 g7 Ra6 Rg1 Nf4 Rf2 Kf7 Rgg2 Qe2 Kb7 Qe5 Kc6 Qe8 Bd2 Qeg5 Kc7 Kg6 Rg1 Qf7 e8Q Ne7 Bc1 Rh7 g8R+ Rg7 Qc8 Qe8 Qcb7 Kf7 Rgg2 Q5h4 Qa8 Rg4 Qe4 Qg5 Qad5 Rh4 Rg6 Rh3 Bd2 Nc6 Rg8 Bc5 Rg6 Ne7 Rg7+ Kf8 Bc1 Bg8 f7 Nc8 Rg1 Qe6 Rgg2 Ke7 f8B+ Ke8 Rg6 Kf7 Bg7 Ne7 Bc3 Qf6 B3d2 Qfg5 Rc4 Ba3 Rb4 Q5h4 Rg4 Qg5 Rg1 Q3h4 R4g2 Qhg3 Nc4 Rd6 Nb6 Rc6+ Kd8 Rd6 Qc6 Qef5 Kc7 Rf6 Qcd5+ Qe6
1K1b3R/5Q1b/qB5B/2pnpQp1/1B2b1nR/3n1np1/B4Nrr/B2r1k2 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 g4 f5 g5 fxe4 Na3 bxa3 g6 hxg6 Bh3 g5 Bf1 g4 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 g5 h4 b4 f5 e3 h5 g3 f6 b3 a5 c3 f7 e2 a6 e1N h6 a2 a7 c2 h7 b2 Qh5 b1B Rh4 Na6 Ba3+ Nb4 Bc4 c1N Nh3 Bb7 Nf2 Nf6 d3 Bg7 f8B Be4 Qf7 Qc8 Be6 Rb8 a8Q c5+ Kc4 Nf3 d4 Qc6 d5 Ke5 d6 Ng4 d7 Ncd3 d8B Nd5 Bb4 Bf6 Bb6 Kf4 Bh6 Ke3 Qa7 Ke2 Qd7 Qc8 Kb5 Qa6+ Kc6 Bc2 Rb1 a1R Rbh1 Rd1 R1h2 Kf1 Qc8 N5f4+ Kc7 Bb1 Ba2 Nd5+ Kc6 Bc2 Qf5 e6 Kd7 Bd8 R2h3 Rb7+ Kc8 Rd7+ Kb8 Rd2 Nd1 Rg2 Nf2 Bb1 Bg7 Bc2 Ba1 e5 Rh2 Rf8 h8B Bb1 Bf6 Rh8 Bg7 Nb2 Rh6 Bed3 Re6 Ndf6 Qh7 Bdc2 Qe4 Rd1 Re8 Nd5 Qef4 Rh3 Bh6 Bh7 Q4f5 Be4 Rh8 Rh5 Rh3 Nd3 Rh4 Ngf6 Rf4 Rhh2 Rh4 Ng4
2BBNn2/2r4Q/RpnpBpB1/3R4/1kq2Q2/pbb4r/4Kn1q/b1b2B2 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 g4 a5 d4 axb4 g5 cxd4 Na3 bxa3 g6 hxg6 Ra2 g5 Ra1 g4 h4 Ke7 e4 Kd6 c4 Kc5 h5 g5 h6 d3 e5 d2+ Kf2 f3 e6 f6 h7 b6 a5 Bh6 a6 Qc7 e7 Nc6 e8B Ra7 Ne2 Kb4 c5 Nge7 Nc3 Ng6 Nb5 Nf8 Nd6 g3+ Ke3 f2 Bg6 g2 Qf3 d1N+ Ke2 g1B Rh4+ g4 Bf4 g3 Ne8 Rb7 a7 g2 a8B Bh2 Ra2 g1B Rd2 Qe5+ Qe3 Rc7 Rd5 Qh5+ Qf3 Bg3 Rg4 Qh2 Bd6+ Bgf4 Be7 d6 Bd8 Be6 Rgg5 Be3 Qf4+ Bd4 Bb7 Bf7 Bc8 Bg8 Be6 Bf7 Qe5 Bc3 Rh5 Bc1 Qg5 Rg8 h8Q Ba1 Qg7 Rh8 Qd2+ Bc3 Rhf5 Rh3 Qh7 Qh1 Qe3 Bh2 Rh5 Bhe5 Qg5 Qh2 Qf4+ Kb3 Rf5 Ba1 Rh5 Bec3 Rhe5 Bg8 Re4 Bf7 Ra4 Bg8 Ra6 Bf7 Qg3 Kb4 Qf4+ Bd4 Bg4 Rd3 Rg5 Bb3 Bfh3 Ne3 Rd5 Bd2 Be6 Nd1 Kf1 Bc1 Bg2 Nc3 Bgh3 Ne4 Bg2 Bdc3 Bgh3 Nb8 Bg2 Rh3 c6 Rd7 c7 Nc6 c8B Rc7 Ke2 Rh5 Kf3 f1Q+ Kg4 Qc4 Kf3 Nf2 Bf1 Qd4 Ke2 Rh3 Qe5 Qc5 Qf4+ Qc4+
1b1rr2r/3bB3/k2B4/b3qq2/1r1Q2rp/R1n1R1n1/BK1R3n/1BQ3N1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 b5 c5 Nc3 cxd4 Na2 b6 Nb4 axb4 a5 bxa5 Rh2 a4 Rh3 b3 Rh2 a3 Rh1 b2 Bxb2 Qg5 Bc1 Qd8 Kd2 f5 g4 d5 e4 Kd7 c4 Kc7 Kc2 Kb7 g5 h5 g6 f3 g7 a2 c5 h3 e5 f2 b6 h4 e6 f4 e7 f3 e8B h2 Nh3 d3+ Kc3 d4+ Kb3 d2 Qe1 d1N Rg1 h1R Kc2 d3+ Kb3 d2 Qe4+ Qd5+ Qc4 Nf6 g8R Ng4 Ba3 Nd7 Rb1 a1B Bb4 Qe5 Qd3 Nc3 Re1 d1R Bg6 Bd6 Re3 Bb8 Rg3 Ndf6 Rd8 Nh5 Qd4 Nh2 Bb1 Rg1 Bc4 f1R Bd5+ Ka6 b7 f2 c6 Bb2 c7 Bd7 c8Q Rfe1 Bg8 f1Q Be7 Qff5 Be6 Rg2 Ng1 Bc1 Qc7 Bd2 Kb2 Re8 Rgf3 Rg4 Bea2 Rf1 Rh3 Rff4 Qc8 Ng3 Qc7 Nd5 Qc1 Ba5 Ra3 Nh5 Rhe3 Nc3 Qd5 Ng3 Qd4 Ba7 b8B Re4 Bc7 Bb8 Qa4 Rd6 Qd4 Rh6 Bcd6 Rhh8 Rc8 Ba7 Rc4 Rad8 Rb4 Bb8 Rbb3 Nd5 Rbd3 Nc3 Rd2 Ref4 Qc5 Rc4 Qd4 Rb4+
nNN1N3/bnb2nB1/2KB1b2/2n2k2/3Q1Bpn/2Q5/1r3BpR/n3qr2 w - - 0 1 legal: proof: f4 a5 e4 c5 a4 f5 d4 cxd4 g4 fxe4 f5 h5 Be2 b6 Ra3 Ba6 b4 axb4 Bf3 bxa3 f6 Bc4 Be2 Be6 Bf3 Bf5 gxf5 Kf7 Be2 Ke8 Bg4 hxg4 Ke2 Kf7 h4 d5 c4 g5 a5 e5 h5 b5 a6 e3 Kd3 a2 a7 a1N h6 e4+ Ke2 b4 c5 g3 h7 d3+ Kf1 b3 Kg2 d2 c6 b2 c7 d4 c8Q g4 Nc3 b1N Nge2 d3 Qc5 Qe8 Qd4 Bg7 Na2 Na6 Nf4 e2 Rh5 e1B Rh6 e3 Rg6 e2 Rg5 Bf2 Qc3 e1B Qa4 d1N Qad4 d2 Nb4 Rb8 a8N Nc5 Nc6 Nb2 Nc7 d1N Rh5 Nh6 Ng6 Nd2 Nge7 Nf3 Nc8 Nb7 Rh2 Nd3 Bf4 Rf8 h8B Ndc5 Kf1 Qe7 Ne8 Ne3+ Ke2 g2 Bg5 Ra8 Bf4 Nh4 Nb8 Ra4 Qd1 Bg3 Qdd4 Bef2 Kd2 Rb4 Ke2 Ne6 Kd3 Nc4 Ke4 Rb2 Kd5 Nb6+ Kc6 Na8 Qcc4 Kg8 f7+ Kh7 f6 Kg6 Qdc3 Ba7 Q4d4 Rg8 f8B Kf5 f7 Bf6 Bfg7 Nec5 f8B Qe1 B8d6 Rf8 Be3 Nf7 Bf2 Bge5 Bh6 Bf4 B8g7 B4e5 Be7 Bd6 Bf4 Bc7 Bed6 Rh8 Qcc4 Ng6 Rh1 Rh2 Qdc3 Nh4 Q4d4 Rh3 B2e3 Rg3 Rh2 Rf3 Bg1 Rf1 Bge3 Ra2 Bf2 Rb2
N1B3n1/1RrB3p/2bbb1b1/6Q1/1RBq3K/bpQ5/kb1Qr1b1/5q1Q w - - 0 1 legal: proof: e4 c5 h4 a5 g4 f5 d4 cxd4 a4 g6 f4 fxe4 f5 g5 Bf4 gxf4 g5 Nc6 Na3 Ne5 b4 axb4 h5 Ng6 hxg6 bxa3 Kf2 d5 c4 Kd7 c5 Kc6 f6 e5 a5 b5 a6 f3 Kg3 b4 a7 f2 g7 a2 f7 d3 g6 Kb5 c6 Kc4 c7 e3 Be2 f1B Qd2 Kb3 Rd1 a1B Rc1 e4 Rb1+ Bb2 Bg4 d4 Re1 e2 Rb1 e1Q+ Qf2 e3 Rh5 e2 Nh3 d2 Re5 d1B Bd7 d3 Nf4 d2 Ne6 Bd6 f8Q Bg2 Qf3+ Ka2 Qc3 Ba4 Kg4 d1B Re4 Rb8 a8Q Qf1 Qfe1 Bc2 Qed2 e1B Rd4 Bcb7 c8B Bbc6 Nc7 Rb7 Kh5 Ra7 Qb7 Qdf6 Na8 Bab3 Rc4 Qd4 Kg5 Nh6 g8B Bf5 g7 Bg6 Bge6 Re8 g8Q Re7 Bf7 Re2 Qg7 Beg3 Qf6 Bgf4+ Kh4 Ng8 Qg5 Be7 Rc5 Be6 Rb5 Bcf3 Qe4 Rc7 Rb7 Bed6 Qed3 Bfd5 Qh3 Bc6 Qh1 Bc5 Re1 b3 Rd1 Bg4 Bc4 Ba3 Rb4 Bd6 Re1 Rf2 Re5 Re2 Reb5 Nh6 Rb8 Ng8 R8b7 Be6+
2rq2RR/q1r3b1/k2rqN1B/1bQQ3N/1pR4r/3Rp1q1/5Q1n/6rK w - - 0 1 legal: proof: b4 a5 h4 c5 e4 g5 a4 gxh4 d4 cxd4 Ba6 bxa6 Nd2 Nc6 Nb1 Na7 e5 axb4 e6 Nb5 axb5 fxe6 b6 e5 Rh3 e4 Rh2 Bh6 Rh1 Bf8 Kf1 e5 f4 d5 c4 Kd7 g4 Kc6 Kg2 Kb7 g5 h5 g6 e3 c5 d3 f5 e4 f6 e2 f7 e1Q g7 a5 c6+ Ka6 b7 d4 b8Q a4 c7 h3+ Kh2 a3 Nd2 a2 Qe2 h4 Ba3 e3 Ngf3 Bd7 c8R Rh7 Qg2 Qg3+ Kg1 h2+ Kf1 h3 Rcc1 Nf6 g8R Bb5 Rab1 a1Q Ne5 Ng4 Rb3 Bg7 Qc7 Rc8 Ne4 d2+ Qc4 d3 f8Q Qa2 Qff2 d1Q+ Qe1 d2 Nf6 Qe8 Qd5 Qe6 Bb2 Qa4 Ned7 Qa3 Rg1 h1R Rd3 Rh2 Nh5 Rg2 Ndf6 h2 Qcc5 h1R Rh8 Rh4 Rc4 Qa5 Ba1 Qd8 Be5 Qa1 Bf4 d1R Bh6 Qa4 Ra3 Rd4 Qf2 Qaa5 Rd3 Qac7 Qe5 Rd6 Qed5 Qa7 Qe1 Rc2 Qf2 Ra2 Rg2 Nh2+ Kg1 Rc2 Kh1 Rb2 Qe1 Rd2 Rg1 Rg2 Qd2 Bf8 Qf2 Rhc7 Rg4 Bg7 Rc1 Bf8 Rgg8 Bg7 Rc4 Rg1+
qQn1r1B1/1prb3K/4Q3/N3N2k/2pqp1rb/3R2Q1/5p1p/1QN1q1R1 w - - 0 1 legal: proof: d4 d5 h4 g5 b4 gxh4 c4 dxc4 d5 a5 d6 axb4 e4 exd6 e5 Ra6 e6 Qd7 Bb2 Qd8 Be5 Ra8 f4 dxe5 Rh2 e4 Rh3 Nc6 Rh1 Ne5 fxe5 Ra3 Kf2 Ra7 Ke1 Ra8 Kf2 c5 Ke3 f5 Kf4 h5 a4 c3 g4 b3 e7 Kf7 Kg5 b2 a5 h3 a6 h4 a7 c2 e6+ Kg7 Nd2 b1R Bc4 c1Q Ra3 f4 Ne2 f3 Rg1 f2 Rd3 Qb6 e8Q h2 e7 Qa3 Nb3 h1Q Na5 h3 Nc1 Bd7 Qb8 h2 e8Q Rh4 Qe6 Ne7 Qc2 Rb4 Qb1 Nc8 Qg3 Rb8 a8Q Be7+ Kf5 Qa1 g5 Rg4 g6 Kh6 g7+ Kh5 g8N Bh4 Nh6 Qa4 Ba2 Rc4 Nf7 Qb2 Ne5 Qd4 Rg2 Qe1 Rg1 Nb6 Qa7 Re8 Qb8 Nc8 Bb3 Rg5+ Kf6 Rg4+ Kf7 Rf4+ Kg7 Rg4+ Kh7 Rc2 Nac6 Qa8 Bd5 c4 Na5 Rd2 Qed6 Rd1 Bg8 Rd2 Rc3 Rd3 Qe6 Rf3 Rd3 Rf6 Qe7 Rc6 Qe6 Rc7
rQ1K1B1n/3rRB1R/1r4pb/1p1pBQNq/2B5/1Rpp1n2/p6b/2k5 w - - 0 1 legal: proof: e4 h5 b4 a5 c4 f5 g4 fxe4 d3 exd3 c5 hxg4 c6 axb4 a4 b6 Na3 Bb7 cxb7 bxa3 Kd2 Kf7 Kc3 Kg6 Kc4 Kf5 Kb5 Ke4 h4 e5 f4 c5 a5 g3 a6 g2 a7 c4 h5 c3 h6 g6 f5 a2 h7 Qh4 f6 Nc6 b8Q Bh6 f7 Qh5 Nf3 g1B f8B Bh2 Bf4 Nd4+ Ka6 b5 Kb6 d6 Bg3 Ke3 Kc7 e4 Ng5 Nf3 Qb1 Kd2 Be5 Qh4 Kd8 Qh5 Qc8 Rb8 a8B Rb7 Be2 Rb6 Qf1 Kc2 Bd5 Kd2 Rb1 e3 Bd1 e2 B1b3 e1R Bdc4 Re4 Qb8 Rd4 Qh3 Rd5 Rhe1 Rd4 Re4 Rd5 Rb2+ Kc1 Qhc8 Rc5 Qg4 Rc7 Qf5 Re7 Bf7 d5 Bc4 Reb7 Rb3 Rd7+ Ke8 Ne7 Re2 Nc6 Re4 Rg8 h8R Nd8 Rh7 Rh8 Be6 Nf7 Re3 Rg8 Re2 Nh8 Bf7 Ra7 Kd8 Rg7 Be8 Rgc7 Bf7 Re7 Bd4 Reb7 Re7 Ra8 Be5 Rd7+
5rQr/n5Q1/1R1rQ3/2qnB2N/BR2n2k/2n2nb1/3QBnb1/K1qq1q2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 a4 Kf6 h4 g5 e4 d5 c4 b5 Kc2 b3+ Kb1 g4 h5 d3 a5 d2 c5 Kg5 a6 f5 h6 d4 a7 d3 e5 b2 h7 b4 e6 f4 c6 f3 c7 f2 e7 Bb7 e8Q Nf6 c8B Nd5 Ne2 g1Q Nf4 g2 Qda4 d1N Qa3 d2 Qh3 g3 Nh5 Bd6 Ng7 Nc6 Be2 f1Q Qh2 Nf2 Ka2 b1N Bcg4 b3+ Kb2 Nbc3 Bh3 Kh4 Rb1 d1R Qe3 Nce4 Nh5 Bb8 Ka1 b2+ Ka2 Rf8 h8Q Qd6 Qhh6 Qc5 Qg7 Bd6 Qeh6 Rac8 a8Q Na7 Be3 Rh8 Bf4 Rcf8 Qe6 Bb8 Rc1 b1N Rc4 Rd3 Rb4 Qfc1 Qef7 Qgd1 Be5 g1Q Qe6 g2 Ka1 Qgf1 Rb6 g1N Qf4+ Ng4 Qd2 Nf3 Rg1 Bc7 Rb4 Ngf2 Rg6 Bc6 Qae8 Bb7 Qeg8 Bd6 Bd7 Bb8 Rgb6 Ba8 Bc3 Bg3 Be5 Ndc3 Qb8 Ng1 Qc8 Rd6 Rb2 Nf6 R2b3 Bg2 R3b5 Nce4 Rb4 Nd5 Ba4 Nf3 Qce6 Nbc3+
K1b1Qq2/3qb2k/1RR1nq2/Qn1r1b1r/1nNQ2Nb/3R4/7Q/2n1Bb1q w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 f5 Kd3 Kf7 Kc4 Kg6 Kd5 b5 h4 d3 c4 b3 e4 b4 a4 d2 h5+ Kh7 e5 g5 h6 f4 e6 b2 a5 f3 c5 f2 e7 f1B e8Q b3 a6 g4 a7 Ne7+ Kd6 Ng6+ Kd5 Be7 c6 Na6 c7 Nf8 Na3 b1B Rh4 b2 Nh3 g1B Nb5 g2 Nf2 g3 Rf4 Bf5 Rb4 b1Q Qe2 d1Q+ Nd3 Qb2 Qe1 Ne6 Rd4 Bf2 Bd2 g1Q Rb1 g2 Qe4 Qh1 Ne5 g1N Rd3 Bfh4 Na3 Ne2 Ng4 Nc1 Be1 Qf6 Nc4 d6 Kc6 d5 Rb4 d4 Rb6 Rb8 a8Q Nb4+ Kb5 Qd2 Qa5 Ra8 Qe5 Qf2 Qh2 Qd7+ Rc6 Qf4 Kb6 Rb8+ Ka7 Rb5 Ra6 Rd5 Rb6 Qf8 Ka8 Qf2 Rc3 d3 Ra3 d2 Rd3 Ba6 c8R d1N Rc5 Nc3 Rc7 Nb5 Rcc6 Kg8 h7+ Kg7 Qeb8 Bc8 Qbf4 Qb2 Qe3 Qbf6 Qd4 Rg8 h8Q+ Kg6 Qd6 Rg7 Q6f4 Rh7 Qh2 Rh5 Qg8+ Q8g7 Qd8 Qgf8 Qe8+ Kh7
k4b2/B1QbKNqr/3BB1b1/7N/4b1N1/r1Qn2q1/r2b4/n1rR1Nqq w - - 0 1 illegal: No possible last move
1nr3n1/K1Q1r1bb/RRQB4/N2b3Q/nQ2Rr2/qqN1pq2/5k1r/3r4 w - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 e6 fxe6 Ba6 e5 Be2 e4 Bg4 hxg4 Kf2 Kf7 h4 Kg6 a4 Kh5 c4 d5 g6 e5 a5 b5 g7 b3 c5 b2 a6 f3 a7 g3+ Ke1 Kg4 Kd2 e3+ Kd3 b4 h5 e2 h6 e1R c6 g2 c7 Kg3 h7 e4+ Kc2 b3+ Kd2 f2 Rh2 f1R Qg4+ Kf2 Nc3 b1Q Nce2 b2 Ra6 d3 Kc3 d4+ Kc4 d2 Kb5 d1Q Kb6 d3 Nf3 d2 Nfd4 Qe7 Nc6 Qa3 Rh4 g1N Na5 Bb7 c8Q Bd5 Nc3 Qf3 Qc7 d1R Bf4 Ne2 Bd6 Qba2 Qf4 b1B Qd2 Qc4 Qb2 Bd3 Qb4 Qcb3 Rf4 Rg1 Rf6 Rg4 Re6 Rf4 Re8 Nf6 g8R Bg7 Re6 Bc2 Rge8 Ng8 R8e7 e3 Re4 Rg1 R7e6 Rg5 Rg6 Re5 Rf6 Re7 Rh6 Nf6 Rg6 Rc8 h8Q Ng8 Qh5 Bd3 Rf6 Bc2 Ree6 Bh7 Re4 Rh4 Rh6 Rh2 Rg6 Rf8 Rh6 Rf4 Rhe6 Nc6 Kb7 Rae8 a8Q Nb8+ Ka7 Rd8 Qc6 Rc8 Nb1 Nc3 Rb6 Na4 Nc3 Ree8 Ra6 Rd4 R6e5 Bf7 Rb5 Rd1 Rb7 Re7 Rbb6 Bd5
qr4Q1/1n2Q3/k1BNB1b1/1qr5/2p2q2/3Nn1BN/qbBnnr2/1Rb1K3 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 e4 Kd7 h4 Kc6 d4 Kb6 h5 g5 a5+ Ka6 d5 c5 d6 f5 h6 b5 d7 f4 e5 c3 e6 c4 h7 f3 e7 f2+ Ke2 g4 e8B c2 Bg5 c1B Nf3 g1Q Qb3 g2 Rh6+ Nc6 Qa3 b3 Bf4 b4 Nh4 b2 Nd2 b1Q Bh5 g3 Bg4 b3 Re6 b2 Qf3 Qa2 Nf5 b1N Qe3 Rb8 Rh6 Bfa3 Nd6 Qh2 Be6 Bab2 N2e4 g1Q Ng5 g2 Bg3 Nge7 Nh3 Nf5 Qc5 Qe8 d8N Ne3 N8f7 Nd8 Ne5 Qb5 Nd3 Nb7 Qb4 Rf8 h8Q Nd2 Qg8 Qgh1 Rh4 g1R Bg2 f1N Ke1 Rf7 Bc6 Rf2 Qc5 Qf3 Qcg5 Bd7 Qe7 Be8 Rh7 Bg6 Be4 Ka7 a6 Qhg2 Bc6 Qf4 Rf7 Kb6 a7 Ka6 a8B Qh1 Bh4 Rg5 Bg3 Rc5 Be4 Na5 Bac6 Nb7 B4f5 Nb3 Rf8 Nd4 Rc8 Ne2 Rc7 Na5 Rb7 Qd5 Be4 Nd2 B4f5 Qba4 Rb4 Qb5 Be4 Nb7 B4f5 Bc3 Rb1 B3b2 Ne5 Ba1 Bc2 Na5 Nd3 Bab2 Be8 Qa8 Bc6 Nb7
bqk1Kn2/6R1/2N1R3/N2rq2p/r2b1QRQ/5nn1/3Q1b1n/1rr1qBR1 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kf2 f5 Kf3 b5 e4 h5 g4 d5 c4 Kd7 g5 d3 c5 d4 e5 a2 g6 b4 g7 b3 a5 h3 a6 b2 a7 d2 Qe2 d1Q Na3 b1R Nc4 h2 Na3 d3 Nb5 d2 Na3 Qe1 Qe4 d1Q+ Qe2 Ne7 g8Q Bb7+ c6+ Kc8 e6 Ng6 e7 Q1d4 e8R Nd7 Re6 Qe5 Qd2 Bc5 Nc4 Ndf8 Ne2 Bf2 Rg1 h1N Qf7 Ng3 Na5 Rh7 Qf6 Rd7 Qh4 Rd5 c7 Rc1 Rb1 a1B Nd4 Qdd6 Ndc6 Bad4 Rb4 Rb1 Kg2 f3+ Kh3 f4 Rc4 Kd7 c8R Qb8 Rd8+ Kc7 Rd7+ Kc8 Rg7 Rc1 Qg5 Nh4 Qf6 Bfe3 Qf7 f2 Qf6 Nf3 Qh4 Nh2 Ra4 f3 Qf4 Rb1 Kh4 Rc1 Bc4 f1R Rb4 Nf5+ Kg5 f2 Ra4 Ng3+ Kh6 Nh7 Kg6 Nf3 Kf7 Nf8 Ke8 Rb1 Rg2 Rh1 Rg1 f1N Bb5 N1h2 Bf1 Bf2 Qh4 Bb6 Rag4 Bbd4 Nc4 Bc5 Bg2 Qbc7 Rf1 Q1e2 Qf4 Bcd4 Bh3 Rb8 a8Q Qd2 Qa7 Ba8 Qa2 R8b4 N4a5 Qb8 Qb2 Qd1 Qbd2 Ra4 Re1 Rg1 Rf1 Rg2 Rh1 Rg1 Bg2 Rf1 Rg1 Qde2 Bh3 Rfc1 Bf1 Qe1
RbbKn3/Qr5r/1Q2bk2/n5r1/3N2r1/3n1b1R/BbR3Rp/bQq4N w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ba3 b4 Ke1 bxa3 Kd2 Kf7 f4 d5 c4 e5 g4 Be6 c5 h5 f5 b5 c6 b4 a5 e3+ Kd3 e2 a6 e1N+ Ke2 h3 a7 h4 c7 a2 c8Q e4 g5 e3 Rh2 b3 Rf2 Rh5 Qd3 b2 Qb3 d3+ Kd1 d4 Qb4 d2 Ke2 Nf6 Qc2 Bd6 Nf3 Qc8 Bg2 Nd3 Nc3 b1R Ne4 Ne8 f6 Nc6 Ng3 Bb8 Qca4 Kg6 f7 Rg1 Qab3 Na5 f8Q d1R Rc1 a1B Qfe7 Rh7 Qb6 Qc7 Qa2 h2 Qab1 h1B Rf1 Qf4 Rc2 h3 Qeb7 Rc1 Q7a6 Kg7 g6 Kf6 g7 Rd1 g8R Rc1 Rb2 Rc4 Rc2 h2 Rg5 Ra4 Rh5 Rc4 Rf2 Rc5 Rh3 Rg5 Rc8 Qc7 Qab7 Qc1 Rc2 Bf4 Q7a6 Rb8 a8R Bd6 Qaa7 Bc8 Rh5 Rbb7 Bh3 Rg2 Be6 Bb8 Rh3 Rg1 Rh5 Bg2 Nh1 Bh3 Ba2+ Bhe6 Rh3 R1g4 Rg2 Rc5 Nd2 Rcg5 Kf3 e2 Nb3 e1B Rb2 Bf4 Ke4 Bc3 Rbc2 Bcb2 Rge2 Ne1 Rg2 d3 Nd4 d2 Qb3 Bf5+ Kd5 d1B Qb5 Be5 Qbb6+ Bfe6+ Kc5 Nd3+ Kb5 Nc4 Kc6 Bb8 Qaa6 Nc7 Qaa7 Na5+ Kd6 Kg7 Ke7 Bf3 Kd8 Ne8 Qb5 Kf7 Qbb6 Kf6
r4R2/1qr1r3/3RQ3/b2rBn1N/KQ3r1Q/1b4n1/bb1Rpk2/2nr2RB w - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 Na3 f5 Nc4 fxe4 Ne5 h5 Ng4 hxg4 Kd2 Kf7 h4 Kg6 a4 Kh5 c4 d5 Kc2 b5 Kb3 e5 g6 e3 g7 e4 c5 e2 a5 e1B c6 e3 c7 d3 a6 f3 a7 d2 Ba3 e2 Rh2 d4 Qc1 d1R Bh3 g3 Qf4 g2 Ra2 d3 Bb2 f2 Qf6 f1N Qc6 d2 Qc2 Qd7 Rh1 Ba6 c8R Nh6 g8Q Nf5 Ba3 Nc6 Rc7 N1g3 Qg7 Ne5 Rc8 Rh7 Rd8 Nd3 Qh8 Nc1+ Kb2 b3 Qg7 b4 Qc6 Bc4 Qc3 Qb7 Qe6 Rc7 Rd6 Bg7 Qd4 Bf2 Qc3 Bb6 Qd4 Ba5 Qc3 Re8 a8R Ree7 Rf8 Rf1 Qd4 d1R Qc3 Rd5 Qd4 Bf6 Bg4+ Kg6 h5+ Kg5 h6 Rf4 Nh3+ Kh4 h7 g1R Bf3 Rd1 Rg1 Bg7 Bh1 Kg4 Rg2 Kf3 h8Q Bf6 Qh4 Be5 Kb1 b2 Kc2 b1R Bb2 Ra1 Qb6 Bg7 Be5 b3+ Kb2 Bh8 Ka3 b2 Ka4 b1B Qb4 Ke3 Rg1 Bf6 Ng5 Kf2 Nh7 Bh8 Nf6 Bg7 Ra3 Bba2 Nh5 Bf6 Rd3 Bh8 Ra6 Bg7 Rd2 Bh8 Bd6 Bb2 Be5 Bb1+ Qa3 Bb6 Kb4 Ra2 Qc3 Raa5 Qb3 Ba2 Qa3 Rd8 Qc3 Rad5 Ka4 Ra8 Qb4 Ba5 Rd6 Bcb3#
1bq1R3/b2pBR2/k1n2bQ1/n3N3/NR2KQ2/3Nr2n/1bb1nr1b/3N2r1 w - - 0 1 legal: proof: e4 h5 b4 f5 d4 fxe4 g4 hxg4 a3 c5 b5 cxd4 b6 axb6 Bh6 b5 Bc4 b4 Ba2 b3 Bc1 bxa2 Ke2 b5 h4 e5 c4 g5 f4 g3 c5 d3+ Ke3 b4 h5 g2 c6 g4 h6 b3 f5 d2 a4 b2 c7 g3 f6 Ba3 a5 Ne7 h7 Ba6 c8Q Bd3 a6 Rg8 h8R Nbc6 a7 Na5 R1h4 Nec6 R8h5 Bc2 Qb8 Qc8 f7+ Kd8 Qe2 d1N+ Kd2 e3+ Ke1 e4 f8N Nf2 Rh6 Nh3 Qf1 e2 Kd2 e1R Qf5 e3+ Kc3 e2 Nf3 g1B Rh8 g2 Qbf4 Bh2 Ne5 Kc7 Nd3+ Kb6 Ng6 g1B Nge5 Ka6 Qg6 Rf1 Be3 Rf2 Bc5 Re8 Kd2 e1B+ Ke3 Re7 Nc3 b1N R8h7 Bb2 Nd1 Nc3 Rf7 Ne2 Ke4 Bec3 Rb1 a1B Rh8 Rb8 a8N Rb3 Rfh7 Rg7 Nb6 Bb4 Be7 Bd6 Re8 Bb8 Na4 Ra3 Nc4 Bf6 Rb4 Bab2 Ne5 Rg8 Qh5 Rg3 Qhf5 Ra1 Rf7 Re3+ Kd5 Rc1 Qg6 Re4 Nc4 Rf1 Nce5 Bga7 Ne3 Rce1 Nd1 Rf2 Rff8 Re3 Rf7 Ref3 Ke4 Rg1 Qc1 Rfg3 Qf4 Re3+
6Qq/r2nbb2/3Qrr2/B1q3q1/6nr/kBqr1RK1/p2QN2r/1R3R1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bh3 g3 Bf1 g2 Nc3 cxd6 Ne4 d5 Ng3 fxg3 Bh6 d4 Bg5 Bc5 Bc1 Bf8 b4 Ke7 e4 Kd6 c4 f5 h4 a5 h5 g5 h6 a3 b5 Kc5 h7 Kb4 b6 d5 c5 a2 e5 a4 e6 d3 e7 a3 e8R d2+ Ke2 f4 Kf3 g4+ Ke2 f3+ Ke3 d4+ Kf4 d3 c6 f2 c7 Be7 b7 Ra7 Rh2 Nh6 Rg8 Be6 c8Q Bf7 Rg7 Nd7 Nf3 g1Q Ng5 g2 Qf3 d1R Qc2 g3 Rh5 d2 Be2 f1R Ne4 Qc5 Nc3 g1Q Rh3 g2 Bc4 Ng4 Kg3 Rde1 Bb3 d1R Bd2 Re6 Rb1 a1Q Ne2+ Qac3 Be1 a2 b8Q+ Ka3 Qd2 Qg5 Qbd6+ Q1c5 Rg6 Rh1 Rf6 Rh2 Rf5 Rf8 h8Q Qc8 Qg7 Rh8 Qg8 Rh4 Rf4 Qh8 Rf6 g1R+ Qg2 Qc7 Rf1 Rgh1 Qb7 Rf2 Qba8 Rhh2 Qh1 Rff6 Qc2 Rd5 Ba5 Rd4 Qd2 Rd3+ Rf3 Rf2 Rh2 Qc8 Rg2 Qc7 Rgg1 Rfh2 Rgf1 Qc8 Qb8 Qc3 Qd6+ Q8c5
1Nq1bn2/br4Rn/1N2nK1R/3prN2/1n4Qb/N1kr4/R1n4b/3BrQ2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 a4 d5+ Ke5 b5 h4 g5 e4+ d3 h5 f5 c3 b3 a5 g2 a6 g3 a7 b4 h6 f4 h7 b2 Qg4 f3 Rh3 f2 Qf5 b3 Ra3 g4 Rh6 Nd7+ Ke6 Be7 e5 Nf8+ Kf7 Rb8 a8R Bd7 e6 Bh4 e7 Qc8 e8Q Ne7 Qf6 Rb7 R3a5 Ne6 R8a6 Ng6 Qf3 Ngf8 Ne2 g1B Nc1 g2 Ra3 g3 Qf5 Bh2 Ra2 g1N Ra7 g2 Ne2 Nf3 Ng3 g1B Be2 f1N Bd1 Nfg5+ Kf6 d2 Qf7 Be8 Qg4+ Kd3 c4 Ne3 c5 Nc2 c6 Nb4 Na3 b1R c7 b2 Nf5 Kc3 Ba4 Re1 Bd1 Rg8 h8N b1N Ng6 Bgf2 Nge7 Rg7 Nc4 Na3 Nc6 Nac2 Nb8 Rg8 Na3 Re5 Bf3 d1R Be2 Rd3 Bd1 Qd7 c8N Rg7 Ra6 Ba7 Nb6 Qc8 Rg6 Rh7 Rg7 Re1 Qd7 Rh5 Qb5 Rh3 Qbe2 Rd3 Qf1 Re2 N6d7 Ned4 Ne3 Re1 Ke7 Nf7+ Rf6 Rg5 Rh6 Nde6 Kf6 Re5+ Rg5 Bf2 Rg7 Nfg5 Nf5 Bh4 Nb6 Ngh7#
K2QN3/1N2R1Rq/n7/2br2Q1/1Nq1rp1n/3B2qb/bk2prQr/5Nr1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 e4 gxh4 f4 e5 b5 exf4 Be3 dxe3 b6 axb6 Bd3 b5 Bf1 b4 Ke2 Ke7 Kf3 Kf6 a4 Ke5 c4 b5 g4 h5 a5 d5 a6 f5 g5 e2 c5 b3 g6 b2 g7 b4 c6 d4 c7 d3 a7 Kd4 e5 b3 e6 h3 e7 h4 e8N d2 Ra5 h2 Qc2 d1R Ra6 h3 Ra1 Qd6 Ra5 Ne7 g8Q Ng6 Qc6 Na6 Na3 b1Q Rb5 b2 Re5 Qa2 Re7 b1B Bg2 Qc4 Nc2+ Kc3 Nb4 Kb2 Qe4 Bd7 c8N Ba2 Qg7+ Qe5 Ncd6 Rd5 Nb7 Rd8 a8Q Nh4+ Kf2 f3 Ke3 f2 Nf3 f1R Qg5 Rd4 Rg1 h1Q Nh2 Rf2 Nf1 h2 Bh3 Qec7 Qeg2 Rg8 Bg4 Qg3+ Bf3 Be6 Qc8 R8d5 Qd8 Qg4 Be4 Qg3+ Qf3 Rg6 Bd3 Bc8 Re4 Bc5 Re7 Qc7 Rg4 Qg1 Qg2 h1R Qf4 Rg8 Rgg7 Rh2 Qfg5 f4+ Kd2 Rh8 Q2g4 Qb5 Rd7 Re4 Rh7 Ng6 Qh3 Qg4 Qg2 Rh1 Rdf7 Ka1 Kc3 Rg1 Rd7 Qg3 Rdf7 Qd6 Rhg7 Rh2 Rc7 Bh3 Rce7 Bb1 Kb3 Qc4+ Ka4 Nh4 Ka5 Qf6 Bc2 Qg6 Bd3 Qc2 Kb5 Kb2 Ka5 Qh7 Kb5 Bd6+ Kb6 Qc4 Ka7 Ba2 Ka8 Bc5
b1R2Kbk/1r1nQbnp/nQ6/1Bb2QQ1/1B2qbb1/2B3b1/5R1p/Nr6 w - - 0 1 legal: proof: c4 c5 h4 e5 a4 g5 f4 exf4 b4 gxh4 d3 a5 Rh3 d5 Qb3 b5 Kd1 d4 Nc3 dxc3 Ke1 bxc4 Qd1 c2 b5 c3 Rb1 c4 Rb4 axb4 Rh2 Bd6 Rh1 Bf8 Kf2 f5 Kf3 Kf7 e4 Kg7 g4 h3 e5 h2 a5 b3 e6 b2 b6 b1B b7 Qh4 a6 Nf6 a7 Ba2 e7 Na6 b8B Ne8 Bd2 c1B g5 c2 g6 c3 d4 Bg8 Bd6 Rb8 a8R Rb7 d5 Bce6 Be2 Bef7 Rc8 Ba3 Qb1 c1N Bd3 c2 Bb5 Nd3 Ne2 c1B B6b4 Ndc5 d6 Nd7 Nd4 Qe1 Bbc3 Bc5 Nb3+ Qe5 Qe4 Bf2 Be1 Bg3 Na1 Be3 Rf1 Bc5 Ke2 f3+ Kd3 f4 Qf5 f2 Bb4 f3 Bec3 Ndf6 d7 Qe4+ Kd2 Bcd6 d8Q Bde5 Qb6 Nd7 Rc1 f1B Rc2 f2 Ra2 Qd5+ Ke3 Bg2 Rc2 f1B Rf2 Nd6 e8Q Be2 Qee6 Bg4 Qe7 Qe6 Kd3 Ne8 Ke3 Rc7 Kd3 Ba8 Ke3 Rb7 Ke4 Kh6 g7 Bef4+ Kd4 Qg6 Qef6 Bc5+ Ke4 Ba2 Qe7 Bgf7 g8Q Ng7 Qgd8 Re8 Qe5 Re6 Qe7 Rd6 Qd5 Bg8 Qd2 Baf7 Qc1 Rd1 Qd2 Ne6 Kd5 Rb1 Kc6 Bd4 Qe3 Kg7 Qeg5 Kh8 Qee5+ Qg7 Kd6 Bde3 Ke7 Bc5+ Qed6 Qd4 Re8 Ng7 Rc8 Ne5+ Kf8 Qe4 Qde7 Nd7+
qk1B1q2/1r2R1Q1/1Bq1R3/1KbQbr1N/5nr1/1B2n3/1q2p2p/Qb2B1n1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 h5 g4 hxg4 e4 a5 Nd2 axb4 Nh3 gxh3 Nf3 f5 Ng1 fxe4 Kd2 e5 f4 d5 c4 Kd7 a4 Kc7 a5 b5 h5 g5 f5 d3 c5 h2 a6 g4 h6 g3 h7 e3+ Ke1 d2+ Ke2 e4 f6 g2 a7 d4 c6 b3 f7 b4 Ba3 b2 Qb1 b3 Ra2 Nf6 Qc1 b1Q Bc5 b2 Bb4 Nd5 Nh3 g1N+ Kd1 Nd7 Be2 Rg8 h8B N7f6 Bc5 Nh5 Bg7 Nhf4 Ra4 Bf5 Bf6 Rg4 Bc4 Qb8 Bb4 Bc5 Ra6 Qf8 Bb3 Qa2 Kc2 d1R Rb6 e2 Qa1 Rb1 Be1 d3+ Kd2 Rb8 a8Q Ne3 Kc3 d2 Bd8+ Kc8 c7 d1Q Qa7 Rb7 Re6 Qd5 Qa5 Qc6 Qb5 Neg2 Kc4 e3 Qa5 Rb5 Qc3 Bh7 Qg7 Qaa8 Re7 Kb7 Re6 Ra5 c8Q+ Ka7 Qd7+ Kb8 Qd5 Bg6 Bg3 e1B Bb6 Bd2 Be1 Bc3 Re7 Be5 Re6 Qfd6 f8B e2 Be7 Bc2 Bed8 Qf8 Re7 Rc1 Re6 b1Q Re7 Qb2 Re6 Nf3 Rf1 Ng1 Rf3 Rd1 Re3 Bb1 Re7 Ra7 Re6 Rb7 Re7 Qd6 Kb5 Rd3 Re4 Rf3 Re6 Ne3 Re7 Nd3 Nf4 Qh6 Nh5 Rf5 Re6 Nf4 Re7 Bc7 R4e6 Be5 Rd6 Qe6 Rc6 Qc8 Rce6 Qc6+
n2b4/3n4/Rq3Q2/N2B1B1R/qBr1br1n/3nQ1pR/pK3R2/r1n2nk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bh3 g3 Bf1 g2 Nc3 cxd6 Ne4 d5 Ng3 fxg3 Bh6 d4 Bg5 Bc5 Bc1 Bf8 Kd2 Ke7 c4 Kf6 Kc2 Ke5 b4 Ke4 h4 a5 h5 d5 e3 f5 h6 g5 c5 d3+ Kb1 a3 c6 g4 h7 d4 c7 a2+ Kb2 f4 b5 a4 b6 f3 b7 a3+ Kb3 d2 Qc2+ d3 Rh5 d1Q Rb1 a1R Bb2 f2 Bf6 a2 Bh4 Ra4 Kb2 Ne7 Qd2 Nd5 Qa5 d2 Qa7 Be7 Qc5 Nb6 Qg5 Na8 Bc4 f1N Ne2 Kf3 e4 Kf2 e5 g1N e6 Nd7 b8R Bb7 c8B Nf3 Nc1 Be4 Qf6 Kg1 Rb6 g2 Nb3 g3 Ra6 Qb6 Bd5 Bd8 e7 Rc4 e8Q Rf8 h8R Rf7 Bg5 Nh4 Bh6 Qg4 Bf8 Qf4 Bb4 d1N+ Ka3 Nf2 Kb2 Qg4 Na5 Qd1 Rc1 Qa4 Rc2 Rf8 Qh6 Rf4 Qf6 Kh2 Qee5 g1N Qd4 Ne2 Qe3 Nc1 Re2 Nf8 Bf5 Kg1 Rc2 Nf3 Rh3 Nd7 R8h5 Nh4 Qa3 Ng4 Rf2 Nge5 Qe3 Ned3+
Bkq5/NqqR4/qn3q2/QKbrR1QQ/2r2p2/4n2n/b4p1R/2qQB3 w - - 0 1 illegal: No possible last move
2n3N1/Bnbr4/rn1r3b/1Q1QB1p1/R2Nb1r1/3p1B2/1b1K2N1/1k1Bqr2 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 c4 Ke7 e4 Kf6 h4 Ke5 a5 b5 h5 d5 h6 f5 a6 g5 h7 f4 c5 d3 c6 Kd4 e5 b3 e6 b2 a7 f3 e7 f2+ Kd2 b4 e8N b3 c7 Qe7 Ng7 Nc6 Ne8 Bf5 c8B Na5 Nc7 Be4 Qf3 Nb7 Qd1 Bh6 Be2 f1R Nh3 g1B Bd7 g2 Qc2 Bh2 Nf2 g1B Ne8 Bc7 Na3 b1R Rh4 b2 Nd6 Qe5 Ne8 Ne7 Rh1 Nc8 Nf6 Rd8 Ba4 Rd7 N2g4 Rf4 Ne3 Rg4 h8B Qe7 Kd1 d2 Qb3 Bf2 Qb6+ Kc3 Qb5 d4 Ng8 Ra1 Bf6 b1N Nac2 Na3 Ng2 Nc4 Bf3 N4b6 Be5 Rd6 Ke2 d1R Be3 Bg1 Bb3 Kb2 Rh4 Kb1 Bf2 Rf1 Kd2 d3 Nd4 Ra6 Be3 Rb8 a8Q Bf2 Qd5 Bg3 Bbd1 Qe6 Qa7 Ra8 Qb8 R8a7 Bg1 Bf2 Nc2 Bc5 Nd4 Ba3 Be3 Bb2 Bf2 Ne7 Qe8 Nec8 Qeb5 Qe7 Rh2 Bd8 Nc2 Nc5 Bg7 Bg6 Rh3 Rg3 Bh8 Rad7 Qbc4 Nba4 Rh4 Nb7 Qcb5 Bc7 Ba7 Nab6 Ra4 Rg4 Nd4 Qe5 Bf6 Qg3 Bg7 Be4 Be5 Qe1+
Kn4N1/1b2NR2/N1p3b1/RR4B1/1Qq2q2/b1r1b2r/1b1nb2p/kN2n2Q w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 h4 g5 a3 gxh4 e3 c3 Be2 Ra7 Bc4 Ra8 Ba2 b3 Qf3 bxa2 Qh5 Nd7 Qd1 Nb8 Kf2 Kd7 Kf3 Ke6 Ke4 b5 d4 f5+ Kd3 Kd5 g4 h5 a4 h3 a5 c6 g5 h4 a6 c2 g6 b4 g7 h2 a7 b3 Bb2 c1B Kc3 f3 Qc2 f4 Qg2 h3 Ne2 Qf6 Ng3 Ba3 Rf1 h1N Nf5 Nf2 Qh1 h2 Ne7+ Ke4 Kc4 Nd3 d5 Ne1 d6 Rh3 Bc3 b2 d7 Qh4 d8R Nf6 g8N Qg3 Qg1 f2 Rd5 f3 Rb5 Qf4 Qh1 Bd2 Bb4 Bc1 Kc5 Kd3 Kb6 Kc2 e4 Be3+ Bc5 Kc1 e5 Ne4 e6 Nd2 Ng6 Qc4 e7 Kc2 e8N Qf4 Nc3 b1B Nc7 Kc1 Na6 Qc4 Ra5 Kb2 N6e7 Bg6 Rd1 a1B Nb1 Ka2 Rc1 Bg7 Rc3 Be5 Rb3 Bb2 Rbb5 Ka1 Kc7 Bg4 Kb7 B4f5 Rg1 f1Q Rg4 f2 Rf4 Be6 Rf7 Qf4 Bd4 Qc4 Bf6 f1B Bg5 Be2 Qe4 Nd7 Qh1 Rf8 a8Q Nb8 Qa7 Bc8+ Ka8 Rd8 Qc7 Rd3 Qd6 Rc3 Qb4 Bb7+
1rB4B/n3Q2r/2BbnNB1/2k1p2n/q5qn/1rn2R2/p1N2r2/1b1KN1Q1 w - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 fxe4 g4 g5 a4 gxf4 g5 bxa4 Ra3 c5 Rg3 cxd4 Rg4 hxg4 c4 a5 h4 e5 c5 Ke7 b5 d5 h5 e3 c6 Kd6 g6 f3 b6 d3 g7 a3 h6 a2 h7 a1Q b7 d4 c7 a4 Bh3 d2+ Kf1 a3 Bb2 f2 Ke2 f1R Rh2 g3 Bc3 g2 Qc1 d1N Bg4 Nc6 b8Q Nf6 g8B Bf5 c8B+ Kc5 Bd5 Na7 Nh3 Nh5 Bc6 Qg5 Qc7 Bd6 Nf4 Rb8 Rh3 Rf2+ Ke1 g1N Nd5 d3 Bd2+ Nc3 Nf6 e2 Qe7 a2 Rf3 Nh3 Na3 N3f4 Nc2 Ne6 Bh3 Qg8 Bh6 Qg4 Bg7 Qb2 Kd2 Qb5 Qg1 Qba4 Bf1 e1N+ Be2 Nb1+ Kd1 d2 Bd3 Ng2 Bde4 Nh4 Bd3 Rf8 h8N Rf7 Ng6 Be4 Bh8 Rh7 Nf4 Rb3 Ne2 Bg6 Ne1 Nc3+ Kc2 d1R Bf5 Bf7 Bg6 Rdb1 Kd2 R1b2+ Kc1 Rb8 Nd4 R2b3 Ndc2 Be8 B6b7 Bb5 Bbe4 Bd3 Bc6 Ne2+ Kd1 Bf5 Nd4 Bb1 Ndc2 Nc3+
2RR3q/2b4Q/1BN1qr2/1b6/3qn2R/nBBkpn2/Q1p1r1q1/n3bK1R w - - 0 1 legal: proof: c4 a5 f4 h5 e4 g5 b4 gxf4 g4 axb4 g5 f5 Nc3 fxe4 Nd5 d6 c5 dxc5 Ne3 c4 Ng4 hxg4 h4 Kd7 d4 Kd6 a4 Kd5 g6 e5 a5 c5 a6 b5 a7 c3 h5 c2 h6 e3 h7 Ke4 d5 g3 d6 f3 g7 b3 d7 g2 Be2 c4 Qd2 c3 Bc4 b2 Bb3 b1Q Ne2 b4 Rh3 Qa2 Nd4 e2 Bf7 b3 Rh5 b2 Rh2 b1N Ba3 c1N Nb3 c2 Qg5 Nc6 Bb2 Ba6 Rh5 Bb5 Rh3 Nd4 Be6 Na3 Bc3 g1Q+ Kd2 f2 Rh1 f1Q Qg3 Bd6 Na5 Qfg2 Rh3 Bc7 Nc6 Nf6 Bb3 Rf8 g8Q Rf7 Q8g7 Qh8 d8B Qe3+ Ke1 Kd3 Rh6 Ne4 Rh4 Rf6 Qf3 Rb8 a8R Rb6 Rc8 Ra6 Nb8 Rae6 Nc6 Qb2 Qh6 Re8 Qf5 Qeh3 Qd7 Qe6 Qd5 Re7 Ba4 Re8 Qa2 Ncb3 Rc1 Na1 Bb3 Ng5 Qg6+ e4 Qf5 Qh1+ Kf2 Ndf3 Rb1 Qh3 Rh1 Qg4 Qg6 e1B+ Kf1 Qg3 Bb4 Qd4 Bc3 Rg8 Qg7 e3 Qe7 Ne4 Qd7 Bf4 Bb6 Bc7 Qg7 Qh2 Qh6 Rg2 Qg6 Qhd8 h8R Re2 Qh7 Q8d5 Rhd8 Qh5 Qf7 Qh8 Qh7 Qg2#
N3Qb2/1bR3Q1/n2p1bB1/p1brBN2/2B4K/1q3q2/N2r1nq1/B1r2qk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 h4 Kd6 b4 Kd5 c4+ Ke4 b5 a5 c5 g5 e3 f5 b6 a3 c6 d6 b7 f3 Kg3 a2 h5 f2 c7 f4+ Kg2 g3 h6 g4 h7 d3 Rh2 d2 Ne2 f3+ Kh1 Nf6 Rg2 Na6 b8Q Bb7 c8N Qb6 Bb2 Qb3 Nb6 Ra7 Rg1 g2+ Kh2 g3+ Kh3 Ng4 Nd4 Ra8 Qe1 d1R Bc4 f1Q Qc3 f2 Kh4 Rd2 Nf5 Kf3 Qe8 Rc8 e4+ Qd3 e5 f1Q e6 Kf2 e7 Qf3 Rh1 g1Q Qg7 g2 Nc3 Rd5 Rd1 a1B Na2 Rg8 h8B Qh2+ Kg5 g1B Be5 Qhg2 Rh6 Rcc5 Re1 Rd2 Re6 Rcd5 Na8 Bd4 Rg6 Bb6 Rf6 Bd8 Qgg6 Rg7 Rc1 Rh7 Qg7 Rh4 Qc6 Rh1 e8B Bde7 Qb5 Bh2 Bh5 Kg1 Bg6 Bg3 Qe8 Bf2 Bd3 Bb6 Rc7 Bc5 Bc4 Rh6 Bh5 Nf2+ Kh4 Rg6 Ba1 Rg3 Bg6 Rg5 Ne3 Rge5 Nf5 Re1 Be5 Rc1 Ba1 Re2 Qg8 Re6 Bg7 Qfc3 Bh6 Qcf3 Qg7 Re2 Bf4 Red2 Bfe5 Bxf6+
1NqQ2bQ/pq1N4/1Qp3nK/1B2R3/2r2rR1/3b3k/rbR2n2/3Qnnb1 w - - 0 1 legal: proof: c4 e5 a4 b5 f4 bxa4 g4 exf4 g5 d5 b3 dxc4 Bb2 h6 Bd4 hxg5 Bf2 g4 Bg3 fxg3 d4 Kd7 Kd2 Ke6 Ke3 Kf5 h4 g5 h5 c6 h6 a3 h7 c3 b4 a2 d5 c2 d6 c1R b5 g2 b6 g3 b7 Kg4 d7 f5 Qd4+ f4+ Ke4 f3 e3 f2 Qg7 Na6 b8Q Ne7 Qge5 Ng6 Qe8 Ba3 Nc3 Nc7 Qb1 Bb2 Qe5 Nd5 Na4 Rc4+ Qd4 Rb8 Bd3 f1B Nb6 Rf8 Nf3 g1N h8Q g2 Qc2 Nh3 Rh2 g1B Qd1 Be2 Rc1 a1Q Rc2 Qb1 Ne5+ Kg3 Rf2 g4 Rf4 Qe8 d8Q Be6 Nbd7 Bg8 Qb6 Qc8 Qd8 Rb5 Nb8 Ra5 Ned7 Ra2 Qb6 Kh2 Qd8 g3 Rg4 g2 Qb6 Bf7 Kf5 Bg8+ Qdf6 Rf7 e4 Bf1 e5 Ne3+ Ke6 Be2 Qe7 Nf1 Qed8 Rg7+ Kf5 Rf7+ Qhf6 Nf2 Kg5 Rf8 e6 Kh3 Kh6 Rf7 Qh8 Rff4 Be4 Bd3 e7 Bh2 e8R g1N Re5 Nf3 Bd5 Ne1 Bf7 Bg1 Be6 Rc3 Bb3 Rcc4 Ba4 Qc1 Bb5 Qe3 Qa5 Qb6 Qa6 Qbc7 Qb6 Q7b7
3bnrb1/1Q2B2n/6Bn/1n2n3/2r1QbRB/NBk2p1K/qp1b4/Q2n1R2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 h4 Ke7 e4 Kd6 a4 Kc5 c4 d5 a5 f5 e5 b5 a6 g5 e6 d3 e7 Kd4 e8B g4 c5 f4 h5 d2+ Ke2 b3 h6 b2 a7 b1N c6 b4 c7 b3 h7 b2 Rh6 Na3 Bh5 Nb5 Bg6 Bd6 Nf3+ Kc3 Qa4 g1B Be8 d1N Rg6 d4 Be3 g2 Bc6 d3+ Ke1 d2+ Ke2 g3 Rg7 Nh6 Rg6 Qg8 Qe4 Qa2 Qe8 Be6 c8Q Nd7 Rg7 Ne5 Ne1 Nf2 Nc2 d1N Na3 Ne4 Bf2 Rf8 h8B Nf6 Rg4 Bg8 Qb7 Rc8 Be4 Rc4 a8Q f3+ Ke1 Bh2 Bg6 g1B Bg7 g2 Bh4 Bc7 Qec6 Qb3 Qe4 Ne8 Bgf6 Bf4 Be7 Bge3 Bd3 g1N Bc2 Qa4 Bb3 Nh3 Kf1 Bd2 Rb1 Nhf2 Kg1 Nh3+ Kh1 Ng5 Kg1 Bfe3+ Kh2 Nh7 Kh3 Bd8 Qaa7 Bf4 Qg1 Ne3 Rf1 Qa5 Qg3 Qa8 Qe1 Qa6 Qa1 Nd1 Nc2 Qa2 Na3 Rc7 Ba4 Rc8 Bb3 Rc4
Qn4K1/R1r2q2/1n4Bb/1n5Q/2p1brp1/1N1Q1r2/r3QbNN/R1b1n1k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 Ke7 e4 Ke6 Ke2 Ke5 Ke3 c5 a4 b5 a5 g5 h5 f5 d3 c3 a6 f4+ Ke2 Kd4 a7 g2 e5 g3 Kf3 c2 e6 c1B Kg4 Ke3 Kf5 Kf2 Kg6 b3 Kf7 b2 e7 c4 e8Q g4 d4 b4 h6 b3 d5 f3 h7 Ne7 d6 Qc7 d7 Bb7 d8Q Nd5+ Qee7 Nb6 Q1d5 Bfh6 Ra6 Rf8+ Kg6 Rf4 Qde5 Be4+ Qf5 Qb7 Nd2 b1N Kf7 b2 h8N Na3 Qd5 b1R Kg8 Nb5 Bd3 Rb2 Ra1 Ra2 Ng6 Qc7 Qh5 Qb7 Ne2 g1B Nd4 g2 N2b3 Qd7 Nh4 Qf5 Kh8 Qf7 Bc2 Kf1 Bb1 f2 Ndf3 N8d7+ Qe8 Rc8 a8Q Nb8 Rh3 Rc7 Nh2+ Ke1 Qee5 f1R Qd3 Bf2 Bc2 g1N Qe6 Bg3 Ng2+ Kf2 Rh4 Nf3 Bb1 Bf5 Qee2+ Kg1 Rh3 Ne1 Rh4 Qe7 Kg8 Bf2 Rh3 Qf6 Re3 Bg6 Re7 Be4 Rh7 Rc6 Ra7 Rc7 Bc2 Qf7+ Kh8 Bf3 Qdd5 Bg3 Bg6 Be4 Qdd2 R1f3 Qdd3 Qe7 Kg8 Bf2 Qhd5 Qf6 Qh5 Qf7+
1NQ1B2K/2n1q1Bn/3n2r1/1R2Q1p1/8/1n2B1pb/b1Qbr1Rb/2B1k1rr w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 Kd2 Kf7 h4 Kg6 f4 Kf5 c4 b5 a5 e5 a6 d5 h5 g5 c5 e3+ Kd3 b4 a7 b3 h6 b2 c6 b1B+ Qc2 e2 c7 e1B h7 e4+ Ke2 d3+ Ke3 a2 Kd4 d2 Rh3 d1R+ Qd3 Qe7 Rf3 Na6 Qd2 e3 Bc4 e2 Rb3 Nf6 Rb8 g3 Rb3 Kg4 f5 Be6 Ke5 d4 c8Q d3 Qa5 d2 Nf3 Nc7 Nd4 Kh3 Rb5 Kg2 Qc3 Kf2 Qc2 Rb8 a8Q Rb6 Qa5 Kf1 Rc5 Bf2 Nc6 Bg1 Bd3 Ke1 Bb5 Bh2 Nb8 Bg7 Rd5 Re8 h8B Nh7+ f6 Bh3+ Kd4 Bf8 f7 Rg6 Be5 Bg7 f8B Bf6 Bg7 Rh8 Kd3 Re8 Bf4 Bc3 Be3 Rh8 Ba3 Rc1 Bd7 d1N Rb5 Bd2 Kd4 Nc3 Be8 Ne4 Qac3 Rd1 Bc1 Nd6 Qc5 Kf1 Qd5 e1R Qe5 Re2 Qc3 Be4 Qc2 Bd5 Rab1 a1N R1b2 Ke1 Ra2 Nf7 Rab2 Ba2 Ke4 Bg2+ Kf5 Nb3 Bf8 Rb6 Bg7 Nd6+ Kg6 Bh3 Bf6 Rf8 Rb1 Kf1 Ba3 Nf7 Kg7 Rde1 Rd1 Re6 Bc1 Nd6+ Kg6 Kg2 Kh6 Rh1 Rf1 Rf7 Rf2+ Kg1 Rg2+ Kf1 Kg6 Ke1 Kh6 Rf8 Kg6 Qd8 Kg7 Rf7+ Kh8 Qe7 Bg7 Rff1 Qf4 Rfg1 Qe5 Rg6
3r4/1nQN3r/1N2rR2/1b2p1bb/1pR1R3/2Q2Rp1/N1nqKBbk/n2b4 w - - 0 1 illegal: No possible last move
1bQn1N2/1b3rr1/NKNpr1N1/Bp5p/1b2q3/1rQ1n3/2R1rRR1/n2k4 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 a3 gxh4 e3 Nh6 Bc4 Ng8 Ba2 b3 Kf2 bxa2 Ke2 Ra7 Ke1 Ra8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 c4 h5 g4 f5 a4 d3 c5 h3 a5 d2 g5 Kd3 g6 f3 c6 f2 c7 f1N e4 h2 e5 f4 g7 f3 e6 f2 a6 Ra7 e7 Nf6 e8N Ng4 g8N Rh6 Ng7 Qe8 Nc3 Nge3 Ne4 Nc6 Qe1 Kc2 Nc5 d1R Ne2 Nd8 Bd2 Re6 Bb4 Rb1 Ne7 Nd2 Rf1 h1R Nf4 Rh2 Nfg6 Nb3 Nc6 b6 Ba5 Bb7 Rg1 f1R c8Q Re2 Rg2 Rf7 Qc3+ Kd1 Rf2 Bd6 Rg2 Bb8 Rf2 Re5 Ne6 d6 Nef8 Re6 Rg2 Rc1 Rb1 a1B Rb2 Rb1 Rc2 Bb2 Rf2 Ba3 Rg2 Bb4 Rf2 Ra8 a7 Na1 Na6 Rb3 Rg2 Bc7 Rf2 Rb8 a8R Qe7 Qd7 Rc8 Rg2 Bb8 Ra7 Rc7 Qc8 Qh4 Rf2 Qe4 Ra8 Rh7 Ra7 Rcg7 Rg2 Ba8 Rf7 Bb7 Rf3 Rf7 Rff2 Rhg7 Nc5 Ba8 Ka6 b5 Kb6 Bb7 Na6 Qf3 Qb2 Qf5 Qc3 Qe4
2q2BB1/B3K3/QrR5/bNQ3p1/4n2k/bn1b2pB/1rN2q1p/n4qqN w - - 0 1 legal: proof: g4 d5 c4 dxc4 d4 f5 h4 fxg4 a4 a5 b4 axb4 h5 e5 d5 Qh4 Ra3 Qxh5 Rd3 Qh2 Rd4 exd4 Kd2 Ke7 e4 Kf6 a5 Kg5 d6 b5 d7 c5 d8N h5 e5 d3 Ke3 b3 Ke4+ d2 Kd5 g3 f4+ Kh4 e6 g5 e7 b4 Kd6 c3 a6 c4 a7 b2 f5 b3 f6 c2 f7 c3 Qe2 d1Q+ Qd2 Bf5 Qd4+ Qg4 Qf6 Na6 Ne6 Rh6 Nc5 Nb4 Na4 Bd3 Qg6 Qc8 Qf6 Rb8 Nh3 Qf2 Qe6 Nf6 Be3 c1B a8B c2 Na3 b1Q Bd5 b2 Nc3 Bd2 Ncb5 c1N Nc2 Nb3 Ba7 Qd1 Qe3 b1Q Qc5 Qde2 Bfg2 Qbg1 Be6 Qff1 Bgd5 Qeh2 Nf2 Be1 Bh3 Ne4+ Ke5 Rf6 e8Q Rfb6 Qec6 Be7 f8B R8b7 Nca3 Nc2 Bg8 Nca1 Nc2 Ba5 Kd5 Rb8 Qb7 Bd6 Qa6 Qhg2 Rh2 Be7 Nh1 Q2f2 Qc6 Ba3 Qc5 Qf4 Rd2 Q4f2 Rd1 R8b7 Rc1 Qc7 Qb4 Nd2 Ne1 Rf6 Bf5 Qc8 Nd6 Rb8 Qc3 Rb2 Nb5 Ndb3 Qd4 Rb6 Rc6 Bb1 Bd7 Bd3 Ke6 Kg4 Nc2 h4 Qc5 h3 Ke7+ Kh4 Bde6 h2 Bf5 B3b4 Bh3 Ba3
2krB1Q1/n2q1b2/7Q/B2pR1r1/rNn5/1n1pQ3/Rp1qnK2/Qqb3B1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 h4 f5 e4 g5 a4 b5 c4 d5 c5 Kd7 e5 d3 h5 g4 h6 b3 h7 b4 a5 f4 a6 b2 a7 b1Q Qc2 f3 Qe2 b3 Rh5 b2 Qe3 Nh6 Be2 Nf5 Bd1 Bh6 Ra2 Nd6 Bd2 Nc6 Ne2 g1N Ba5 g2 Nc1 g3 Ba4 Ne2 Rf5 Rf8 h8B Nc4 Bg7 Qc7 e6+ Kd8 Bd4 f2+ Kd1 f1N Ke1 g1Q e7+ Kd7 Re5 g2 Qf4 Qh2 Bg1 Nfd2 Kf2 Rd8 Bb5 Ba6 e8Q+ Kc8 Qh5 Qe7 Qe3 Qd7 Qg6 Bf4 Qh6 Nb3 Ba4 Nb8 c6 Bb5 c7 Nc6 Ra3 Bg5 Na2 Bf4 Nb4 Bg5 Qeh3 Bc1 Ra2 Qf4+ Qf3 Qd2 Qg3 Rb8 a8Q Na7 Qge3 Bc6 Bh2 g1R Bb5 Rg5 Bg1 Qg7 Ba4 Be8 Bc6 Bf7 Be8 Nd6 Qc6 Nc4 Qa4 Qf8 Qa3 Qd6 Qa4 Qd7 Qa3 Kb7 c8Q+ Ka8 Nc6 Nb5 Qa6+ Na7 Qa4 Rb4 Ra3 Bh5 Qh7 Nd6 Qg8 Bf7 Ra1 Rd4 Qa2 Ra4 Nb4 Nc4 Qh6 Kb8 Qa3 Kb7 Qa2 Qbc2 Qb1 Kb8 Ra2 Kc8 Qa1 Qb1
q7/1n1BQKnp/B2N2q1/6bN/4n2r/pnb1Nkq1/NQ1p4/2Qr1b1R w - - 0 1 legal: proof: b4 b5 e4 c5 a4 bxa4 h4 g5 d4 cxd4 e5 gxh4 Ra3 d3 Rc3 f6 Rc5 e6 Rd5 exd5 e6 d4 Bf4 Bc5 Bg3 Bf8 Be5 fxe5 Kd2 Ke7 f4 Kd6 c4 a5 g4 e4 f5 Ke5 e7 Kf4 e8Q d5 c5 a3 c6 e3+ Kc1 a4 c7 d2+ Kc2 d3+ Kc3 d4+ Kc4 h3 b5 h2 f6 a2 f7 a1N g5 a3 b6 e2 b7 e1B g6 Bh3 c8B Nb3 g7 Ra4+ Kb5 Nd7 Kc6 Ngf6 g8N Ne4 Kd5 Ndc5+ Qd7 Bh6 f8N Bg5 Be2 Bf1 b8Q+ Ke3 Qdd6 Nb7 Ke6 Rb4 Qc2 d1Q Nh6 d2 Nh3 d3 Nd7 Rc4 Bg4 Qf3 Nf7 d1N Qe7 Bc3 Nd6 Qg3 Ne5 d2 Qbc7 Rf8 Nf4 Rg8 Bd7 Qa8 Qb2 Kf2 Bf5 Ne3 Ng4+ Kf3 Nh5 Rg7 Bg6 Nf5 Ne3 Rg8 Kf7 Ng7 Bgf5 Ra4 Bb5 Rd4 Bfd7 Rb4 Rg1 h1Q Ba6 Qhh2 Rh1 Rc8 Nf6 Qh6 Qc4 Rc5 Nh5 Rf5+ Nf6 Rf4 Qc5 Rh4 Nh5 Rc4 Qc8 Ba5 Qc7 Rc1 Nc3 Rd1 Na2 Bb4 Qcc2 Bc3 Qcc1 Qg6#
rB1R2nN/Rn1K3Q/3Nbp2/bp1k4/Q2bpbnQ/1n3r1N/5Qq1/4n3 w - - 0 1 legal: proof: d4 e5 e4 a5 f4 exf4 g4 h5 b4 axb4 e5 hxg4 d5 c6 Bg2 cxd5 Be4 dxe4 Kf2 Ke7 a4 Ke6 c4 b5 h4 d5 h5 g5 a5 b3 a6 f6 h6 b2 h7 d4 c5 f3 Kg3 f2 c6 f1N+ Kf2 g3+ Kg2 d3 Kh3 g4+ Kh4 d2 c7 g2 a7 g3 Kg4 Nh2+ Kf4 Ng4 Na3 b1N Qf1 d1N Qe1 Nd7 Nh3 g1B Nc4 g2 Qh4 Nd2 Nd6 Kd5 Kf5 Nc5+ e6 Ndb3 Bf4 Nb2 Ra3 Bd4 Rd1 Bd7 c8Q Nb7 Qc2 g1B Qcf2 Be8 e7 Bf7 e8Q Bh6 Qe7 Nd3 Be5 Ne1 Ra6 Rc8 a8Q Bf4 Ra7 Rc3 Qe6+ Kc6 Qh2 Qc8 Qd2 Bh5 Ra3 Bc5 Nc4+ Bd6 Qb2 Rf3 Qd7+ Kc5 Ke6 Bc7 Qh2 Ne7 Ra2 Rd8 h8N Ng8 Qa6 Qa8 Qh7 Bf2 Rd6 Bd4 Ra3 Rc8 Rd8 Bf7+ Kd7 Kd5 Qg1 Bcb6 Bc7 Rb8 Nd6 Rc8 Qa5 Qa6 Ra4 Ra8 Bb8 Bc7 Ra1 Bcb6 Qb4 Qa2 Qf1 Qb2 Ra7 Qg2 Qa4 Ba5 Qff2 Be6+
1R3rQr/b1RNn3/R1Rprpr1/8/N1b2q2/Qb4Qp/6r1/BK1n2kb w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 a3 gxh4 e3 Nh6 Bc4 Ng8 Ba2 b3 Kf2 bxa2 Ke2 Ra7 Ke1 Ra8 Kd2 Ke7 c4 Kf6 Kc2 Kg5 g4 b5 c5 h5 a4 h3 a5 Kh4 c6 Kg3 c7 Kf2 a6 d3+ Kb2 f3 g5 h2 a7 h4 e4 b4 e5 f6 g6 h3 e6 d2 e7 b3 e8R Nh6 g7 Ng4 g8R Ne3 Re5 Bc5 Na3 Nc6 Re6 Ba6 c8Q Ne7 Qc7 Qb8 Rd6 Bc4 Ra6 d6 Nb1 Qb4 Qa5 Rf8 a8Q Ba7 Nc3 Qa4 Rb1 a1R Rg7 Qb4 Rh7 Kg2 Qc8 f2 Na4 f1R Qe1 d1B Nf3 Rg1 Ne5 Bc2 Bd2 Nd1+ Kc1 Ra3 Bc3 Ra2 Qg3+ Kf1 Nd7 b2+ Kd2 B2b3 Qe8 Rf7 Qeg8 Rf8 Rc1 b1R+ Rc2 Rbb2 Kc1 Ra3 Rf7 Rba2 Ba1 Rb2 Rc3 Rg2 Kb1 Raa2 Qc5 Rae2 Rc2 Qd2 Qa3 Re6 Rc3 Qf4 Rc1 Be2 Rcc6 Bb5 Qh4 Rg6 Qg3 B5c4 Rh7 Ke2 Rg7 Rg2 Rf1 h1B Rf2+ Ke1 Rb2+ Kf1 Rf7 Bd5 Rh7 Bbc4 Rb8 Kg1 Ne5 Nc8 Rhc7 Ne7 Nd7 Bb3 Bc3 Bdc4 Bb2 Bb5 Ba1 B5c4
Q3bK1Q/N3n1pB/1b2n1bn/1Qp2BN1/7b/Qq1n1R2/1p1r2k1/2Bb1r2 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 e4 Ke7 Ke2 Ke6 Ke3 Ke5 h4 f5 d3 b5 h5 c3 a5 f4+ Kf3 b3 a6 c2 a7 b4 h6 b2 h7 b3 Rh3 Nc6 Be3 c1N Qc2 Bd7 Qc4 Nh6 Nc3 b1B Nb5 b2 Be2 Rc8 a8Q Be7 Qa3 Be8 Na7 Bh4 Qb5+ Qd5 Bd2 Rf8 h8Q Ne7 d4+ Kf6 Bd1 Kg5 Bc2 Nd3 Be3 Rf5 Bc1 Qb3 d5 Rd8 e5 c6 Ke4 Kg4 e6 f3 d6 f2 d7 f1B Nf3 g1B Ng5 g2 Rf3 Bb6 Nh7 g1N Ng5 Nd5 e7 c5 Be3 Ne2 Bc1 Rc8 d8Q Nd4 Qf8 Rc7 Qh8 Rd7 Qc8 Be2 Qa8 Bf7 e8B Bd1 Qa1 Ne7 Qa3 Rd6 Bd7 Be8 Be6 Rd7 Bg8 Ne6 Bh7 Ne1 Bd3 Rf8 Bc2 Rd2 Ke5 Nd3+ Kd6 Rf4 Rf2 Kg3 Rf3+ Kg2 Bf5 Re4 Bh7 Re1 Bf5 Nc6 Bh7 Rf1 Bf5 Nce5 Ke7 Ng6+ Kd6 Re1 Be4 Nf2+ Bed3 Ngf4 Ke7 Rf1 Bh7 Nd5+ Kd6 Bh5 Bcg6 Bbc2 Kd7 Ne7+ Ke8 Be4 Rf8 Nd3 Rf3 Nef4 Kf8 Bc6 Qbb4 Be8 Bf5 Bhg6 Qb5 Ne6+
8/B4bk1/RNrRrn1R/Kb1rNr1Q/2n1p1qQ/2b2p2/3n3p/5QnQ w - - 0 1 illegal: No possible last move
3r2Kn/Q1pp3r/3NQb2/1n1r1QNn/1qB1r1nk/1pR2b2/1q6/2N1N1B1 w - - 0 1 illegal: No possible last move, all moves rejected
1nQr2B1/n1R4N/B1R2bbk/1R1K1Qr1/1b2Q1b1/2b1p2q/p3p2p/4n2R w - - 0 1 legal: proof: d4 b5 h4 g5 e4 c5 a4 bxa4 g4 cxd4 Nd2 f5 Ndf3 fxe4 h5 h6 Nh4 gxh4 g5 Bg7 g6 Bf8 Bg5 hxg5 Kd2 e5 f4 d5 c4 a5 b4 g4 c5 e3+ Kd3 e4+ Kc2 e2 g7 Kf7 f5 d3+ Kc3 d2 Kd4 g3 b5 h3 f6 a3 h6 Kg6 c6 h2 c7 a4 h7 a2 b6 g2 b7 a3 f7 Bb4 f8Q Ra5 Nh3 g1B+ Nf2 Bg4 c8B Qd7 Qe7 Kh6 Ke5 d4+ Qc5 d3 Qb1 d1N Qc2 Ne3 Nh3 Ng2 Rc1 Ne7 g8R Ne1 Rg7 Rd8 Ng5 d2 Bh3 e3 Qe4 d1B Qb5 Bb3 Rc6+ Bbe6 Bg2 Bf2 Qbd5 Bf5 h8Q+ Bh7 Qe8 Bg6 Nh7 Bh4 Qf5 a1B+ Ke4 Na6 b8R a2 Rb5 Nb8 Ba6 Nc8 Qe5 Bb2 Qc7 Na7 Qc8 B2c3 Bh3 Qd6 Rgc7 Qg3 Bg2 Bd7 Kd5 Qh3 Be4 Bg5 Bb1 Bgf6 Qee4 Bh5 Bd3 Bg4 Bc4 Be8+ Qfd7 Bg6 Bb3 Bd6 Qdf5 Bdb4+ Kc4 Rd5 Rbb6 Bfe7 Qf1 Rg5 Qff5 Rd5 Rbb7 Ba5 Rb5 Rd6 Kc5 Bef6 Bg8 Rd3 Kc4 Rd8 Kc5 Bab4+ Kc4 Rf8 Kd5 Rd8+
6K1/2qp1R2/p1Qb1r1n/k6p/b5Qr/2nRR1b1/NBnN1Qnp/q4Q2 w - - 0 1 legal: proof: a4 c5 h4 b5 d4 cxd4 f4 bxa4 c3 g5 f5 gxh4 f6 d3 e3 exf6 Be2 f5 Bg4 f4 Be6 Nc6 Bb3 Nb8 Bc2 dxc2 Ke2 h5 Kd3 f5 Kd4 a3 Ke5 h3 g4 h2 b4 f3 e4 f4 g5 a2 b5 f2 b6 f1Q g6 f3 g7 f2 c4 Ba6 c5 Ne7 Kf6 Nbc6 g8Q Nb4 e5 Qc7 e6 Kd8 Kf7 Nf5 b7 Rh6 c6 Bb5 Nc3 Ba4 Nf3 Nd5 Bb2 c1B Qg4 Rf6+ Kg8 Bf4 Nd2 Bg3 Qb1 Qa6 Qf1 Bfd6 Rd1 a1N Na2 Nc3 Rg1 Rc8 b8Q Nc2 Qb6 Qa5 Qbd4 a6 Qdf4 Rb8 e7+ Kc8 Rg2 Rb4 Qff3 Kb8 e8R+ Ka7 Re3 Kb6 Qff4 Qe5 Rg1 Ka5 Qd4 Qb7 c7 Rc4 c8Q Qc7 Qa8 Rb4 Qc6 Rc4 Qe1 f1N Rg2 Rb4 Rf2 Rc4 Qd3 Rb4 Rff3 Rf4 Qf2 Qd4 Re8 N1e3 Qdf1 Ng2 Rfe3 Qe5 Rf8 Qd4 Rf7 Qe5 Qgf3 Rh4 Qg4 Qd4 Rd3 Qe5 Re1 Qd4 Ree7 Qe5 Re8 Qe1 Re2 Qa1 Ree3 Nh6+
1NBn4/kp1K1Q1N/1n1R1p1q/1bq2pQp/r2BQr2/b6p/8/N1n3qQ w - - 0 1 illegal: No possible last move
1QbQ4/4Q1qn/1p4kb/4ppN1/K1R2n1r/R2nrN2/2pn1p2/1Q1q1BN1 w - - 0 1 legal: proof: c4 d5 e4 dxc4 g4 g5 f4 gxf4 b4 a5 g5 axb4 g6 h6 Bb2 Bg4 Bf6 Bf3 Bg5 hxg5 Be2 Bxe4 Bd3 Bf3 Bf1 Be2 a4 f5 d4 e5 Kd2 c5 Kc2 c3 Kb3 c4+ Ka2 g4 h4 b6 a5 f3 a6 f2 g7 Kf7 h5 c2 d5 c1N+ Kb2 g3 h6 b3 h7 g2 a7 Ne7 Ka3 b2 g8N c3 d6 c2 d7 Ng6+ Qd6 Nd3 Nf6 Bh6 Ka4 Ngf4 Nd2 b1N Ndf3 Nd2 Qe7+ Kg6 Ra3 Qc7 d8Q Nd7 Qb8 Nf8 Ne4 Qd6 Qbd8 Rc8 a8Q Rc3 Rh4 Qd5 Nh3 g1Q Neg5 Qf7 Qa6 Qg7 Qb5 Qh1 Qb1 Rb3 Bg2 Qd1 Bf1 Rc3 Nhg1 Rb3 Ne1 Bf3 Qb8 Bb7 Nef3 Bc8 Rg4 Nc1 Rh4 Re3 Rg4 Ncd3 Rh4 Rg8 h8Q Nh7 Rg4 Ne6 Re4 Nef4 Rc4 Rd8 Qg8 Rd4 Qgd8 Nd5 Qdf8 Rh4 Qfd8 N5f4
Br5n/pQ2r1bq/R2N2p1/1p1p1n1p/p1Q2B1N/3Kp2N/b1Q3Q1/1n2k3 w - - 0 1 illegal: No proof kernel
q1rnKb2/4RbqR/r1B1p1r1/2R5/1k1n2R1/1N2R2N/2n1n1Bq/2r4B w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 f5 a4 fxe4 b5 c5 Qd2 cxd4 Ba3 b6 Qb4 axb4 a5 bxa3 axb6 Ba6 Ra2 Bb7 Ra1 Bc8 Ke2 d5 g4 Kd7 c4 Kd6 f4 Kc5 b7 h5 f5 h3 f6 h2 g5 h4 f7 h3 g6 d3+ Ke3 d4+ Kf4 a2 Ke5 e3 g7 d2 b6 d1R Nd2 d3 Nb3+ Kb4 c5 e2 c6 e1N c7 d2 Rb1 Nc2 Bg2 Nh6 g8B Be6 c8B Nf5 Rc1 Ra6 Bd7 Nfd4 Bdc6 a1Q Bh7 Rg8 Bhe4 Rg6 Bef3 Rf1 Re1 d1Q Re3 Qe2 Bfe4 Rc1 Bed5 Bh6 f8R Bg8 Rf4 e6 Rg4 Qf6+ Kd6 Bf8+ Kc7 Qg7+ Kd8 Qa2 Ke8 Qf3 Ba4 Nc6 b8R Nd8 b7 Qf4 Rc8 Qb8 Ne2 Qa8 Rc5 Qb2 Nf4 Qa2 Rd1 h1R Bac6 h2 Nh3 Re1 Rd2 h1N Bde4 Ng3 b8R+ Qgb7 Rf2 Nge2 Rf7 Rf1 Rh7 Rf3 Rc8 Qg7 Rc7 Rf5 Ra5 Rc5 Re7 Rc3 Bd7 Rc8 Rc5 Qb8 Bh1 Qh2 Bdc6 Qa5 Beg2 Qa2 Nd2 Qd5 Nb3 Qe4 Bd7 Qa8 Bdc6 Bf7+
1q2N2N/1r1nKq2/kbN1bQ1N/r5b1/B1n4q/p1p3n1/4NB2/NR5n w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 b5 d5 Ra3 dxc4 Rb3 b6 Rb4 axb4 a5 bxa5 Qb3 a4 Qc2 b3 Qxb3 a3 Qc2 Be7 Qd1 Bf8 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 d4 Kc7 g4 Kb7 e4 c3 d5 c2 b6 f3 d6 h3 g5 f2 d7 c4 Ke6 h2 e5 c3 g6 f4 g7 h4 Qh5 f3 Bb5 f1Q Qh6 h3 Bb2 c1B Ne2 f2 Ba4 Bg5 Bc1 Nf6 g8N Nd5 Nd2 Ka6 b7 Bc5 Nb3 Bb6 Qf6 Ne3 Na1 Rh7 Nh6 Nc4 Be3 Qc7 Rg1 h1N Bc5 h2 Be3 Qg2 Rb1 f1Q Bg1 Qe4 Bf2 Rh8 Ke7 Qh4 e6 Ng3 Be1 h1N Bf2 Qcf4 d8N Nd7 Ndf7 Rd8 Nh8 Qb8 Kf7 Rg8 e7 Rg7+ Ke6 Ra7 e8N Rf7 Qg7 Rf5 Qf6 Ra5 Kf7 Nde5+ Kf8 Be6 Ke7 Nd7 Be1 Qff4 Bf2 Qc8 b8N+ Kb7 Nc6 Qcb8 Rg1 Qf5 Rb1 Qg6 Nd8+ Ka6 Nc6 Rb7 Nf5 Qg8 Nh6 Qf7+
bB5R/b1pnB3/qBB1r3/7K/r1N4p/q1R2p1N/k3n3/Bbq1r2N w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 b4 a5 h4 gxh4 b6 Bh6 b5 Bg7 e3 fxe3 Qb3 Bf8 Qb4 axb4 Ke2 Kd7 Kf3 Ke6 Kg4 Kd5+ Kh5 f5 d4 e2 g4 e1R g5 c3 g6 f4 g7 f3 b7 c2 b6 h3 Ra6 b3 Ra7 h2 Na3 b2 Nh3 b1B Nc4 Nd7 b8B Ne7 g8N Bb7 Bb2 c1Q Nh6 Nc6 Nf5 Qc8 Ba1 Bc5 Ng3 Rhe8 Ra3 R8e6 Rc3 Ra4 Ba7 Ba8 b7 Qa3 b8B Qa6 Bb6 h6 Ba5 Ba7 Bb6 Nce5 Be2 Nd3 Bd1 Nc1 Bc2 Kc6 d5+ Kb5 d6 Kb4 Be4 Ne2 Bb7 Bh7 Bc6 Bb1 Rc1 Kb3 Rc2 Nc5 Rc3+ Ka2 d7 Qc1 d8B Qa3 Rg1 h1Q Be7 Nd7 Rf1 Qg1 Nh1 Qe3 Rg1 Qd2 Rg8 Qdc1 Kh4 h5 Rh8 Qc2 Kg5 h4 Kh5 Qcc1
1NN5/ppB5/n6k/KQp1b3/nN1pNnq1/3N1RB1/2b2rNq/2qb4 w - - 0 1 legal: proof: a4 f5 b4 c5 g4 d6 a5 Na6 b5 Be6 g5 Ba2 Bh3 Rc8 Bg4 Rc6 bxc6 fxg4 Nf3 Qxa5 Ng1 Qd8 c4 g6 h4 d5 h5 gxh5 d4 e6 Na3 dxc4 d5 e5 Rb1 Nh6 Rb3 Ng8 Rd3 Qd6 Rd2 Qd8 Rd4 exd4 Kd2 Kf7 e4 Kg6 f4 h4 c7 h5 c8N h3 f5+ Kh7 g6+ Kg7 d6 h2 f6+ Kh6 e5 h4 e6 h3 g7 c3+ Kd3+ Kh7 d7 c2 e7 g3 e8N g2 f7 Qg5 d8B Kh6 Ne2 g1Q Nc7 Be6 Bf4 c1Q Bg3 Kh5 Nc4 Kh6 Qf1 Ne7 Ne5 Bb3 Nd5 Ng6 Bc7 Qg4 Nb4 Bd6 f8N Bd1 Nfd7 Rf8 Nb8 Rf2 Nf4 Qg2 Rg1 h1N Qe2 h2 Rf1 Bc2+ Kc4 Q2h3 Ned3 Be5 Ng2 Nf4 Kb5 Bd1 Bh4 Ng3 Ka5 Ne4 Bg3 h1B Qb2 Nc3 g8N+ Kg6 Qe2 Na4 Nf6 Kh6 Ne4 Qh2 Qb2 Rc2 Rf3 Rf2 Ne3 Bg2 Qb1 Bf1 Ng2 Bc2 Qb2 Be2 Qb3 Bed1 Qc4 Qg5 Qb5 Qg4
NB2Q2N/1q3b1b/1qN3qb/Rr1q2n1/1b2b1KN/1p4r1/1n1q2B1/N3kN2 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 c4 Ke7 e4 Kf6 Ke2 Ke5 Kf3 g5 h4 b5 a5 f5 h5 d5 h6 d3 a6 Kd4 a7 f4 c5 d2 h7 b3 c6 g4+ Ke2 b2 e5 b4 c7 b3 e6 Nh6 e7 Nd7 e8N Ne5 Nh3 g1B Ng5 g2 Qe1 d1B+ Kd2 g3 Qe2 f3 Qb5 f2 Qd7 Nhf7 Bc4 f1Q Qa4 Bh5 Ne4 Ng5 N4f6 Rg8 h8N Bh6 Qc6 Qf3 Nd6 Bf5 c8N Rb8 a8N Nd3 Qb5 Bh7 Nfe8 Bf7 Qa4 Rb5 Na3 b1B Ng7 Nb2 Rh5 Bbe4 Na7 Qc7 Ke1 Kc3 Ngf5 d4 Nc6 d3 Bf4 Bc5 Bd5 Bb4 Ndc4 Qb7 Nce3 g1Q+ Nf1 g2 Nc2 Qgb6 Na1 g1Q Bb8 Qfh1 Nh4 d2+ Ke2 Qg3 Nf3 Qd6 Nh4 Qg6 Be6 Rg7 Bh3 Qh2+ Bg2 Qe5 Nd4 d1Q+ Kf2 Qef5+ Kg3 Qd2 Nc6 Qfd5 Kg4 Kd3 Bc7 Ke2 Bh2 Ra5 Bb8 Ke1 Qb5 Q5d3 Qe5 Qd5 Qe8 Rb5 Bh2 Ne6+ Kh3 Qgg5 Nd8 Qdd7 N4g6 Rc5 Nh4 Qf6 Bb8 Rg3+ Kh2 Qg6 Nc6 Rc2 Ra5 Q7d5 Ne3 Rc5 Nf1 Rg5 Kh3 Rb5 Ra3 Rg4 Ra5 Ng5+ Kh2 Rf4 Kg3 Rf3+ Kg4 Rg3+
2b2Q1r/2N1BnnR/1N3rR1/r2n1p1b/2bk2r1/b3b1N1/NqK5/n1NN4 w - - 0 1 illegal: No possible last move
R1b1NNnn/b1KpkpB1/b3q3/N2r2bB/4N3/3qq1r1/2R2rN1/4b1R1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Qd3 h4 Bc1 g2 Qg3 hxg3 Kd2 b5 Kd3 g5 Ke4 d3 Kd5 g4 a4 d2 h4 d1B e4 b3 c4 b2 a5 b4 c5 b3 a6 Be2 c6 Bb5 c7 Be7 h5 Ra7 e5 Bg5 Kd6 Qf6+ e6 Nc6 h6 Nce7 h7 Ng6 Nc3 b1R Ra2 b2 Nh3 g1B Be2 g2 Ne4 g3 Nf4 Bf2 Rg1 Be1 Bh5 Ra8 a7 Bba6 Be3 Rd1+ Bd4 b1Q Rc2 Rb8 a8N Rb3 Nb6 Rf3 Nc4 Rf2 Na5 Rdd2 Kc5 Ke7 Be5 Qd1 Kb6 Rd5 Ba1 Qf5 Bc3 Qd3 Bg7 Bcb7 c8R Qh3 Rf1 g1B Kc7 g2 Rb8 Bc8 Ra8 Bb4 Rfc1 Be1 Rd1 Bh2 Rb1 g1Q Rd1 Qgg4 Rdc1 Bg1 Ng2 Qhe3 Rd1 Nf6 Ra1 Rg8 h8N Nh4 Bh6 Rg6 Bg7 Ng8 Rb1 Rgf6 Rd1 R6f3 Ra1 Rg3 Ng6+ Ke8 Nf8 Ke7 Rac1 Ng6 Ra1 Nh8 Rac1 Rff5 Ra1 Qed2 Rac1 Ba7 Rb1 Q2e3 Rbc1 Bf2 Rg1 Be1 Bh6 Qh3 Nd6 Kf6 e7 Rf4 e8N+ Ke7 Bg7 Rf2 Ne4 Qe6
1NBq4/r1np3b/5r2/b1R5/p2Br2N/2NN1rkN/qq1R4/Bbn2Kn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 b4 Ke7 e4 Kd6 c4 Ke5 g4 a5 g5 f5 c5 h5 b5 d3 c6 a3 c7 h3 g6 d2+ Kf2 a4 g7 h4 b6 h2 b7 a2 Qc2 d1N+ Kg2 f3+ Kh3 f2 Kg2 f4 Nd2 h3+ Kf3 Rh4 Ke2 f3+ Kd3 Kf4 e5 Ne7 g8N Nc3 e6 Ned5 e7 Kg3 e8N Re4 Nb1 Bb4 Ng7 Ba5 Nh6 Na6 b8B Bb7 c8N+ Ndc7 Nf7 Ra7 Ne5 Ne2 Qc3 Nb4+ Kd2 Ba8 Ne7 Nd3 Bb2 Ndc1 N7c6 Bb7 Bg2 f1R Nd3 Re1 Bf1 f2 Nf5+ Kg4 Bg2 f1R Nh4 Rf6 Bf3+ Kg3 Bg2 Ra8 Ba7 Ba6 Be3 Ra7 Nb8 Bc4 Bb6 Bg8 Bd4 Bh7 Bf3 Re3 Bb7 Re4 Bc8 Re3 Ngf3 Ng1 Ng5 R1e2+ Kd1 Re4 Qb3 R2e3 Qa3 Raa6 Nc3 Ra7 Rb1 a1Q Qb3 Qa2 Ba1 Nf3 Rf1 h1B Rb2 h2 Nh3 Ng1 Rd2 Bg2 Rf4 h1Q Rf5 Qh2 Rc5 Bf1 Qd5 Be2+ Ke1 Bg4+ Re2 Bgf5 Kf1 Qb2 Rd2 Qa2 Rd1 Qhb2 Rd2 Rg4 Ne1 Bb1+ Qf5 Rge4 Nd3 Rg6 Qh5 Rf6+ Qf3+ Rexf3+
1qBrN1b1/r1bRNb2/4N3/4q2n/qp2nR2/1R2bnk1/BqR3p1/4K1R1 w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Qg4 e4 Qf3 Nf6 Qd1 Ng8 g4 h6 Bf4 Ra7 Qd2 Ra4 Qg2 gxf4 g5 Ra3 g6 Ra8 Qg5 hxg5 h4 b5 a4 e5 c4 Ke7 c5 Kf6 c6 d5 c7 f3 g7 e3 a5 f2+ Ke2 e4 h5 Ke5 a6 Kf4 h6 d3+ Kd1 b3 a7 b2 h7 b4 f6 g4 f7 d2 Ba6 f1Q+ Kc2 d4 Ra3 d3+ Kb3 d1Q+ Kc4 e2 Rh3 e1N Nd2 b1Q Rh2 g3 Ra2 e3 Rg2 e2 Rb2 Bd6 f8N Nd7 Rb3 Qb2 Ne4 d2 Nf6 Nc5 Ne8 Nf6 g8R Nh5 Nf3 Ne4 Ne5 Nf3 Kd3 Be6 c8B Qfe1 Nc6 Bf7 Bc4 Bc7+ Bd5 Qda1 Ne7 d1B Rg7 Rg8 h8R Qa4 Rg1 g2 Rgh7 Rg7 Ne6+ Kg3 Rf8 Rb8 a8R Bg8 Ra3 Bb3 Rf4 Qea1 Ra5 e1B Rc5 Bf2 Rc2 Be3 Ke2 Qe5 Bc4 Qab2 Bd5 Ba2 Rb3 Ra8 Ba6 Qb8 Bc8 Nfg5 Ke1 Ra7 Nc6 Rd7 Re7 Rd8 Rd7 Bf7 Ne7 Nf3+ Ke2 Ned2 Rd3 Qc1 Nd4 Qb2 Bb3 Bd5 Rdc3 Nh4 Ke1 Bg8 Bf7 Ne4 Rd3 Bd5 Be6 Bc6 Ba2 Bcd5 Rb3 Bdf7 Ne6 Nf3+
5N1R/4RR2/4r1b1/brRb1qpN/qNbn1p1B/1q6/rR2r3/1Bk1K1n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 c4 Kf6 a4 Kg5 h3 b5 e5 f5 e6 d5 a5 g3 c5 b3 e7 b4 e8R d3 a6 b2 c6 b3 a7 d4 c7 d2+ Ke2 d3+ Kf3 g2 Kf2 f3 h4+ Kf4 h5 g5 h6 Ne7 h7 Nd5 Rh3 Nc6 Rh5 Bb4 Re7 Bb7 c8N Qa5 Be2 Nc3 Qe1 Re8 h8R Nd4 Ra3 Bd5 Rb7 Re6 Bd1 Nce2 Nc3 b1R Re7 b2 Bc2 Qa4 Ra2 Ba5 Nd1 Qb5 Ne3 d1Q Rh2 d2 Nb6 Qd7 Be4 Q1a4 R2h7 d1Q Bd2 Qdb3 Rhf7 Rc1 Rc8 b1B Rb2 Rc2 Rc5 Rb8 a8R Rb7 Nbc4 Rb5 Nb6 Qc8 Qf1 Qf8 Ke1 f2+ Kd1 Qc8 Nd7 Qf8 Qe1 f1B Bd3 Qc8 Nh3+ Kf3 Bb4 g1R Nf4 Rg2 Nh5 f4 Nf8 Ng1 Qd2 Rh2 Ke1 Qd7 Bh7 Bfc4 Bc3 Rf6 Bg6 Qf5 Rd8 Re6 Rdc8 Be4 Nd5 Rg2 Nb4 Bed5+ Kd1 Rh2 Qf2+ Ke4 Be1 Rg2 Qf1 Ke3 Bh4 Rgf2 Ke1 Rfd2 Qg2 Re2+ Kf1 Kd2 Qf3 Rg2+ Qe2+ Kc1 Ke1 Rc3 Rd2 Rc2 Rb8 Ra2 Rb2 Bd3 Nh7 Bc2 Rh8 Bce4 Nf8 Rh2 Qd3 Rc2 Qe2 Qg4 Qd3 Rd2 Bf5 Qh3 Bg4 Bg6+ Qe2 Qhd3 Bf5 Qh3 Bd3 Qf5 Bb1 Rc2 Rcc7 Qe3 Rc6 Qeb3 Rc5 Rcxe2+
2bkN1q1/1K3R2/ppn5/2Rb1R1p/2Qn2Rb/1r2nn1R/2rRB3/1B1rn3 w - - 0 1 legal: proof: b4 g5 e4 b6 a4 e6 h4 gxh4 f4 d5 e5 Kd7 f5 exf5 Nc3 Ke8 Ne4 dxe4 b5 Bc5 a5 Ba3 Bb2 Bf8 Bd4 bxa5 b6 a4 b7 Ke7 Be3 Ke8 Bb6 cxb6 Kf2 h5 Ke3 a6 g4 h3 d4 f6 c4 h2 e6 a3 g5 a2 g6 Bb4 g7 Bd6 c5 Nd7 b8R Rh7 e7 Bg3 d5 f4+ Kd4 f3 c6 f2 d6 e3 Kd5 e2 c7 e1N Kc6 f5 Qa4 f4 Rb7 f3 Be2 f1R Nh3 f2 Ng5 Bh4 Qc4 Rh8 Rd1 a1N Nf7 Nb3 Rd2 Rg1 Rd5 f1N Rf5 Rg3 Ra7 Ne3 Rb7 Ngf6 g8B Nfd5 Bh7 Rhg8 Rg1 Rf3 Rg4 h1B Ra7 N7f6 Bg6 Ne4 Rb7 Ned2 Ra7 Bd7+ Kb7 Nb4 c8R Nd4 Rcc5 Rc8 Bh7 Be6 Bg6 Kd7 e8R Nbc6 Rf8 Rf1 Rf3 Bg2 Rh3 N2f3 Bb1 Bd5 Nh6 Rg5 Rf5 Qg8 Nf7 Ke8 d7+ Ke7 Nd6 Kd8 Rh2 Bh3 Ne8 Rg7 Rg1 Rg3 Rhh1 Bg4 Rh3 Nd3 Rg2 Rd1 Rg1 Ke7 d8R Nde1 Rf8 Bd7 Rf5 B7e6 Rd6 Bd7 Rg2 Kd8 Rg6 B7e6 Rg4 Bd7 Bf1 B7e6 Rd2 Bd7 Be2 Rc7+ Ka8 Bc8 Bed3 Rg7 Rg2 Ng5 Rgf4 Nf1 Raf7 Re3 Rgh2 Ngf3 Re4 Rg2 Rg4 Ra2 Rd2 Rc2 Be2 Rb3 Rgg7 Ne3 Rg4 Bd7 Kb7 Bc8+
nrR5/brnq1bpN/q1R4p/1BB2B2/4RqN1/2knq3/5p1R/2b3KR w - - 0 1 illegal: No possible last move, all moves rejected
2BBBr1R/rqB3N1/5b1p/B1p1pnR1/1Q2q1B1/3bn3/r7/1Kb1rb1k w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 fxe4 Na3 bxa3 h6 gxh6 Bb2 h5 Bc1 h4 d4 Kf7 Kd2 Ke6 Kc2 Kf5 f4 b5 d5 e5 d6 c5 a5 b4 a6 b3+ Kb1 h6 a7 h3 d7 h2 g3 c3 Qd2 Kg4 f5 b2 f6 e3 f7 e2 Nf3 e1R Nd4 Qc7 d8B Nd7 Ba6 Kh3 g4 Be7 f8B Nb6 g5 Nd5 g6 Ne3 g7 Qb7 Rg1 h1Q Nf5 Bf6 Rg5 Ne7 g8B Rh7 Ng7 N7f5 Be2 Kh2 Bf7 Qhg2 Bfe7 Kh1 Bd6 Rb8 a8B c2+ Ka2 Qbe4 B6c7 Ba6 Bg4 Bf1 Qb4 Qgf3 Bd2 c1B Bb7 b1B+ Kb3 a2 Bc8 Ra8 Be8 Bbd3 Rb1 a1R Bc3 Bd2 Kb2 R1a7 Ra1 Rh8 Ra6 Rf8 Rb6 Nc2 Rb8 Bc1+ Kb1 Ra2 Qb6 Qb7 Ba5 Ra7 Qb4 Qfe4 Ba4 Qbd5 Ba6 Bde2 Be7 Rf7 Rh8 Rf8 Bc8 Bd3 Be8 Qb7 Bed8 Nce3+
Nb6/Rb4qR/rp4K1/4pnn1/3rR2B/rp1k4/1p1Nnb1R/N3bR1B w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 axb4 h5 d5 h6 dxc4 Qb3 cxb3 Kd1 gxh6 Ke2 h5 Ke1 h4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 g4 e5+ Ke3 c5 f4 h3 a4 c4 d4 h2 g5+ Kf5 d5 b2 g6 h4 g7 b3 d6 b6 d7 h3 a5 c3 a6 c2 a7 Nc6 Nd2 Qf6 d8R Nge7 g8R Nd4 Rd5 Qg7 Bg2 Bb7 Rd6 Ne2 Ngf3 Rh4 Ne1 Rg4 Rf1 h1R Rh8 h2 Rdh6 Rg1 Ra6 h1N R8h7 Nf2 Rh2 Nh3 Bh1 Ng5 Ra5 Nc6 Ra2 Bd6 Ra1 Ne7 Ra4 Rc8 a8N Bb8 Ra7 Rd8 Bf3 Rd4 Bh1 Ke6 f5+ Kd5 f6 Nf5+ Kf2 Ra4 f7 Kd4 f8R Ra3 Rd8+ Kc3 Rd4 Rh4 Rda4 Rgg4 Rb4 Rf4+ Kg2 e3+ Re4 Ra6 Nef3 Kd3 Nd4 Rh6 Re1 Rd6 Rf1 Nf7+ Kh3 Rg4 Nb5 Rd4 Na3 Rg1 Bg2 Ng5+ Kg4 Rh1 Kh5 Rg1 Bh1 Rg4 Nb5 Rda4 Nd4 Ra3 Nb1 Rf4 Bd2 c1B Nc2 Rg4 Be1 Bd2 Bh4 Be1 Na1 Bf2 Nd2 Rf4 Ra4 Rd4 Rb4 Nc3 Ra4 e2 Rc4 e1B Ra4 Qh8 Kg6 Ne2 Rb4 Rd5 Rf4 Rd4 Re4 Qg7+
b2qB1nB/6rN/k1N1pRNq/r1p1p1q1/1B2pp1R/n5bN/4b1K1/5N2 w - - 0 1 illegal: No proof kernel
N2N4/r4K2/4nB2/4R3/kNRnqBqr/3Bqrp1/5R1n/1r1q1rbR w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 h5 Bb2 exf6 Ba3 f5 Bc1 f4 g4 hxg4 a4 b6 Qd3 Bb7 Qf5 Ba6 Qa5 Bb5 axb5 bxa5 Kd2 d5 Kd3 Kd7 c4 f5 e4 g5 h4 a4 b6 Kc6 e5 g3 e6 a3 e7 f3 e8N f2 b7 g4 c5 Kb5 c6 f4 c7 b3 c8R g2 h5 f3 h6 g3 h7 b2 Ng7 a2 Bf4 Nd7 b8R+ Ka4 Nd2 b1R Be3 Bc5 Nb3 Qe7 Rh6 Ra7 Rh2 Nf8 Na5 Nh6 Rb3 Nf5 Ne8 Ne6 Nh3 g1Q Nb7 Qg2 Be2 f1R Nd8 f2 Bf4 Qh1 Nc7 Qe4+ Kd2 d3 Kc3 d4+ Kc4 d2 Re3 d1R Na8 Rd3 Rg2 Rdb3 Bd3 Qh4 Re1 Qg4 Rh2 Qe3 Kd5 Bb6 Nc6 Ra3 Ng5 Rc3 Nf7 Bc5 Bc4 d3 Nfd8 d2 Bd3 d1Q Nb4 Nfd4 Rg2 Bb6 Rc4 Qdf3+ Kd6 Qfe4 Rh2 Rbc1 Rb1 a1Q Rh1 Rb3 Rb2 Rcc3 Rbe2 Qd1 Rc2 Rb1 Rce2 Rg8 h8B Rgg7 Rc2 Rh7 Bf6 Rh4 Rce2 Rg1 Rd2 f1N Rf2 Nh2 Ree2 Rf1 Re1 Ra5 Ke7 Ra3 Kf7 Rf5 Bh6 Rf3 Bf4 Kb5 Ree2 Ra7+ Nc7+ Ka4 Re1 Ra6 Na8 Bc5 Ree2 Ra7+ Ke8 Qec1 Rd2 Qef5 Rg2 Nc2 Rge2 Bg1 Re5 Ncd4 Rdc2 Qe4 Rf2 Ra5 Ke7 Qce3 Kf7 Ra7+
KR1nNN2/7B/R1prq3/1b2q1pN/p5R1/k5bq/3rN1rB/1b1b3B w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 b5 a4 h5 f4 hxg4 f5 d5 a5 dxc4 f6 b3 Qc2 exf6 Qa2 f5 Qa4 f4 Bb2 Nd7 Bc1 Nc5 Qa3 Na4 Qxa4 bxa4 Kf2 Kd7 h4 Kc6 e4 Kb5 d4 Kb4 h5 f5 h6 g5 h7 b2 d5 f3 Ke3 g3 Kd4 f2 e5 c3 d6 g2 Kd5 c2 Kc6 f4 e6 f3 e7 Bg7 e8N Qe7 d7 Nh6 d8R Be5 a6 Bg4 Kb7 Bg3 a7 Nf7 Nc3 b1B Bf4 c1Q Nge2 g1R Ne4 Qe5 Rh6 Rg2 Ra6 Qc4 N4f6 Qce6 Nh5 Rg8 h8N Rg6 Ra2 Rc8 Rb2+ Ka3 Rd4 Rd8 a8B Rd6 Ka7 Nd8 Rb8 Rg8 Be4 c6 Ka8 Rg7 Rdb4 Rgd7 Bh7 Rd2 Ng6 R7d4 Ng1 Rd6 Bc4 f1B Bd5 f2 Nf8 Bc4 Ne2 f1Q Bf3 Bb5 Bfe4 Rg1 Bh1 Qh3 Rd4 Rg2 Rc4 Be1 Bh2 Bf3 Rg4 Bg3 Nc3 Bd1 Ne2 Ra2 Nhf4 Rb2 Nh5 Rbd2
2b2qrN/kr2b2B/3r2N1/1B1pNb2/n1R1BR2/3pb2K/b2N4/2bn1n1R w - - 0 1 illegal: No possible last move, all moves rejected
2n2b2/pp1R1r1k/3NR3/3B3q/bB1bq2B/2nN1N2/2q1b3/q2RNrqK w - - 0 1 illegal: No possible last move, all moves rejected
2N1n2n/2rkbn2/2n4r/1b2rN2/1B1rbN2/2r1rBBR/2Nq2K1/Q1n3B1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Bf1 b4 Ra3 bxa3 c4 d5 f4 e5 Kf2 b5 h4 g5 h5 a2 c5 a1N f5 b4 f6 e3+ Kg2 d3 f7+ Kd7 h6 e4 a5 g3 h7 d2 a6 d4 a7 g4 Qa4+ Nc6 Be2 d1R Ba6 b3 Bd2 e2 Qc4 e1R Qe2 e3 Rh2 d3 Qf1 e2 Bc3 b2 Rh5 d2 Rh6 Rc1 Bb7 d1R Re6 Nf6 Qf3 Nb3 Nd2 b1B Qe3 Be4+ Qf3 Be7 f8B Ne8 Nb1 Rd4 Bb4 Rc3 Rh6 Nc1 Na3 Rb8 Ba8 Ba6 Nc2 Rc8 Nh3 Bb5 Nf4 Qa5 Rh3 Rc7 Ne3 Qa2 Nf5 Qd2 Bb7 Bc2 Qf1 Be4+ Kg1 g2 a8N Qc2 Kh2 g1N Bg7 Qd3 Be5 Nf3+ Kg2 g3 Bd6 Qd2 Nb6+ Kd8 Nc4 Kd7 Na3 Ng5+ Qf3 Nf7 Nc2 Nd3 Ba8 Nde5 Bb7 Ng6 Be5 Rg8 h8B Rg7 Ba8 Rh7 Bd6 Rh6 Bb7 Rd5 Bd4 Ngh8 Bg1 Rd4 Be5 Rb1 Ba8 Rbb3 Bb7 Re3 Ba8 Rbc3 Bd6 Bed3 Qf1 Re5 Qa1 e1R+ Kh1 g2+ Kh2 Na7 Bf3 R1e3 Kg3 Be4 c6+ Kd8 Bf2 g1N Kg2 Ne2 Bg1 Rc8 c7+ Kd7 Qc1 Nc6 Qa1 Rb8 c8N Rb7 Bc7 Nc1+ Ne2 Ree6 Be5 Rc7 Bg3 Qd3 Nf4 Re5 Ba3 Qd1 Bb4 Qd2+
r2b2Q1/2NBrB2/B4n1n/b5pN/1bq1B3/1bq1r3/1RqkqK1N/3qN3 w - - 0 1 legal: proof: f4 a5 d4 g5 a4 f5 b4 axb4 e4 fxe4 g4 c5 f5 cxd4 Bf4 h6 Ra3 Qc7 Rg3 gxf4 g5 Qa5 g6 Qd8 Rg5 hxg5 h4 e5 c4 Ke7 h5 Kd6 h6 Kc5 g7 b5 f6 d5 f7 f3 h7 d3 a5 Kd4 c5 Ke3 c6 b3 c7 d4 a6 b4 a7 b2 Rh6 b3 Rg6 Bb4+ Nd2 b1Q f8N b2 Ne6 Qf6 Be2 f2+ Kf1 Qc2 Ndf3 b1R Nd8 d2 Nf7 d3 Nd8 Be6 c8B Nd7 Nf7 Bb3 Ba6 Nh6 Qe1 d1Q g8B d2 Beb5+ Qe2+ Kg2 d1Q Nh2 f1Q+ Kg3 Ba5 Nd6 Bd8 Bf7 Re8 h8N Re7 Ne8 Rc1 Qf2+ Kd2 Nc7 e3 Qf5 e4 Qd5+ Qd4 Rb6 Nf6 Ng6 Qdd3 Qe6 Qdc3 Bd7 Ra1 Rb5 Ra3 Nf4 Qec4 Rb8 Qfe1+ Kg2 e2 Nh5 e3 Rb5 Nfg8 Qg6 Nf6 Qg8 Qf2+ Kh3 e1B Ngf3+ Kc1 Rb6 e2 Rb7 Qfe3 Kg2 Bd2 Rb6 e1B Rb7 Qee2+ Kg1 Bg3+ Ne1 Bd6 Rb8 Bb4 Rb6 Rc8 a8B Ba5 Be4 Ra8 Qe8 Qcf3 Rb7 Bdb4 Qg8 Kd2 Rb5 Ba4 Rb6 Re3 Rb8 Bb3 Rb5 Qed3 Rb6 Qg4+ Kf2 Qge2+ Kg1 Ba2 Bf3 Bc3 Rb2 Bb3 Bg2 Bcb4 Be4 Qg4+ Kf2 Qdd4 Bg2 Qdc3 Be4 Qge2+
2Kb2Rq/3n2B1/1bNBB3/BNNn1b2/1rk4q/rp6/2p1N3/1Qqnrn2 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 d4 Ke7 Kd2 Ke6 Ke3 Kd5 Kf4 c5 h4 b5 h5 f5 a5 c3 h6 c4 a6 b3 h7 c2 e3 b4 a7 c3 Nf3 g1B Ba3 c1Q Bh3 g2 Ne5 c2 Nc6 b2 Nc3+ Kc4 Ke5 b1N d5 g5 d6 f4 e4 b3 d7 f3 Ke6 g4 e5 f2 Ne2 f1N Bd6 Bb6 Rg1 Ne7 Qe1 Rg8 h8B g3 Bg7 Nc3 Qd1 Qa1 Qb1 Ned5 Bg4 Qh4 Bh3 Bb7 d8B Nd7 B8c7 Rb8 a8N Be7 Bd8 Bg5 Nc7 Nd1 Na6 Bc8 Nc5 Ra8 Bg4 Ra3 Bf5 Rf8 Bg4 Rf4 Bf5 Ba7 Ba5 Bb6 Bg4 N5f6 Ke7 Nd5+ Ke8 Be7 e6 Bed8 e7 Qaf6 Be6 Re4 Rh1 g1Q Rh3 g2 Rg3 Qfd4 Qa1 Qge3 Bf6 Nf8 Rg6 g1R Rg8 Nd2 Bh3 Kb5 Qb1 Re1 Bd7 Qh8 Bg7 Nf1 Bg4 Qc1 Bh3 Bf5 Bg4 Bh7 Be6 Ng6 Kd7 Nf8+ Kc8 Nd7 e8N Bf5 Bd2 Qf6 Ba5 Rb4 Nc7+ Kc4 Nb5 Qfh4
r5R1/pk3q1B/bb1Qr2p/B3Bn2/3q2N1/rn4pB/1K3prn/2RR3R w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxh4 g4 e5 a5 exf4 Nc3 b6 Ne4 bxa5 Ng3 fxg3 Bf4 a4 Bh6 Qc7 Bc1 Qd8 Kd2 d5 b4 Kd7 c4 Kc6 Kc2 f5 e4 d3+ Kc3 a3 b5+ Kb7 c5 h6 e5 f4 e6 h3 e7 d2 e8B h2 b6 d4+ Kb3 d3 g5 a2 g6 f3 g7 f2 Qe1 d1Q+ Kc3 d2 Qe5 Qd7 Qf6 Qf7 Qe7+ Nd7 Kb2 Nf6 g8R Ng4 Qd6 Qa4 Rb1 a1R Nf3 Ra3 Ne5 Be7 Bd3 Bd8 Bh7 Qe4 Rd1 h1R Ra1 Nh2 Ng4 Rg1 c6+ Ka6 b7 Nc5 b8B Bb6 c7 Kb7 Bd7 Nb3 Bdf5 Rg2 Rb1 Be6 c8R Qd4+ Rc3 Bc4 Rh1 Ba6 Bc7 Bc5 Ba5 d1N+ Kc2 Qe3 Rd8 Rf8 Ne5 Re8 Bb2 Qg8 Bh3 Bb6 Ng4 Qe5 Rd3 Qf6 Rc1 Qgf7 Bbc3 Re4 Rg8 Ne3+ Kb2 Nf5 Rdd1 Re6 Bd4 Qe5 Bdc3 Qd5 Be5 Qd4+
4N3/1BRBkbpq/1r2NrR1/1nqrrpr1/b2B3r/1B6/Bb3KnB/8 w - - 0 1 legal: proof: f4 a5 d4 h5 a4 c5 b4 axb4 g4 hxg4 e4 cxd4 e5 e6 f5 Rh6 Qd3 Rh5 f6 Rh8 Qf5 exf5 e6 Rh4 e7 Rh8 Ra3 Rh5 Re3 Rh8 Re6 fxe6 Bd2 Kf7 Be3 Na6 Bc1 Nb8 c4 d5 h4 b5 c5 g3 h5 g2 h6 e5 h7 e4 a5 b3 c6 e3 c7 d3 a6 e2 a7 d4 Bg5 b4 Bh6 d2+ Kf2 d1B Nc3 e1R Ne4 b2 Bf4 b1R Bh6 d3 Kg3 d2 Nh3 g1Q+ Bg2 b3 Nc3 b2 Be3 Nc6 Ne4 Ba4 Bd4 d1R Nf4 Nh6 Ne6 Ng4 Rh6 Ne3 Rg6 Qd6+ Kf3 Qh1 Kf2 Qc5 Bf3 Rd3 Bd1 Ng2 Bb3 Rb8 a8B Rb6 Bb7 Na7 Ba2 Nb5 Bbd5 Bb7 Bdb3 Bd5 c8B Rbd1 Ba6 b1R Bb7 Ke8 f7+ Kd7 e8B+ Ke7 Bd7 Rg3 Bc4 Rg5 Nf6 Re5 Bcb3 Qh2 Ne8 Rc6 Nd8 Rf6 Ne6 Bc4 Be3 Rdd5 Bd4 Rg8 h8R Qh5 Rh7 Rh8 Rhh6 Qh1 Rh3 Rh4 Rf3 Rhe4 Rc3 Qh7 Rc1 Rh4 Nf4 Kd8 Rc2 Bd6 Ne6+ Ke7 Rc1 Bc7 Rc3 Ba5 Rc1 Bc3 f8B+ Kf7 Bd6 Bb2 Bc7 Ke7 Bb8 Ree4 Bh2 Ree5 N6c7 Rdd6 Rc2 Bf7 Ne6 Rb6 Rc4 Rd5 Rc2 Re1 Rc3 Ree5 Rc1 Qb4 Rc7 Qc5
4q1bB/1k1rB2n/rb5R/3rb2B/np2p2B/1R3B2/KN1b2N1/1qrBr3 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Qd3 b5 Qf3 b4 Qa3 bxa3 Kd1 g5 h4 e5 f4 b5 c4 d5 Kc2 Kd7 Kb3 Kc6 f5 e3 c5 d3 f6 e4 a5 g3 f7 g2 a6 d2 h5 d1R h6 g4 h7 b4 a7 e2 Rh2 e1R Ra2 d4 Bb2 g3 Bc4 d3 Bf6 d2 Nc3 Be6 Nh3 g1Q Bh4 g2 Rb2 a2 Na4 a1B Ka2 Bh6 f8B Qe8 Nf4 Nd7 Rb3 Be5 Be2 Rc1 Bh5 d1R Bfe7 Kb7 Nb2 Nb6 Rh3 Rd5 c6+ Kc8 c7 Na4 Rh2 Nf6 Rh1 Rf8 h8B Kb7 Bf3 Bg8 c8B+ Kc6 Rh2 Rf7 Bcg4 Nh7 Bh5 Kb7 Rh1 Qf1 Rh2 g1B Ng2 Bd2 Rh3 Rf6 Rh1 Rad8 a8B+ Ka6 Rh3 Bb6 Bc6 R8d7 Bb5+ Kb7 Bbe2 Bbd4 Bd1 Ra6 Rg3 Qg1 Rg6 Bb6 Rh6 Qf1 Nc4 Qd3 Nb2 Qb1#
8/B4r2/R3Bkpp/3nN1r1/2q2b2/1qB3BN/3rrr2/qnRbKnNN w - - 0 1 illegal: No possible last move, all moves rejected
3KBnb1/R1Rr4/2N5/2qbR1n1/Qnr5/Rr1n3k/n4Rqb/nQr3Q1 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Nd2 h5 Ndf3 Ke7 Be3 Ke8 Bf2 Ra3 Ne5 Ra8 Kd2 g3 Ng4 gxf2 Ne3 Ra6 g4 Ra3 g5 Ra8 Ng4 hxg4 Kd3 Ke7 Kc4 Ke6 Kb5 Kf5 h4 d5 a4 d3 c4 g3 g6 Kg4 e4+ f3 a5 f5 h5 b3 c5 f4 e5 g2 g7 b2 a6 b1R+ Qb3 d4 a7 d2 c6 d1R c7 d3 Kb6 d2 h6 Ne7 g8Q+ Ng6 e6 Na6 e7 Qd4+ Kb5 Be6 c8Q Rbc1 e8R Bd6 h7 Rb8 a8R Qc5+ Ka4 b5+ Ka5 b4+ Bb5 f1B Rb1 f2 Qd5 b3 Rd8 b2 Qe8 f3 Qd3 Nf8 Qa3 Bc4 Qa2 f1Q Qa1 f2 Qf7 Bh2 Rd7 Nb4 Rc7 Bd5 Nf3 g1N Qfd7 Qg2 Nd4 f1N Raa7 Ne3 Nc6 Nh3 Re1 Nec2 Qb7 Ng5 Re5 Kh3 Qa4 Na1 Qg7 Rc4 Qg6 Rh1 Rf1 b1N Rf2 d1N Qb6 Nbc3 Qb1 Nb2 Qg1 Rg8 h8R+ Kg4 Rh5 Nca2 Rh3 Rg7 Ra3 N2d3 Qb1 Bg8 Qg1 Qd6 Qb7 Kh3 Kb6 Ra8 Qb8 Qc5+ Kb7 Rf7 Kc8 Rf3 Kd8 Rg3 Ra6 Ra7 Qb6 Rb7 Qb1 Rhc1 Ra7 Qd4 Qc5 Qc3 Qe3 Qd4 Qe1 Qc5 Qg1 Rf3 Qa5 Rf7 Qa4 Rd7+ Kc8 Rf7 Nb8 Na6 Be8 Rb3 Nc6 N6b4 Kd8 Rd7+
B3nb2/Rbnk3b/2qr4/3rR2Q/1Q2npKn/3nb3/q3qQQ1/Q1N3R1 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Nd2 h5 Ndf3 Ke7 Be3 Ke8 Bf2 Ra3 Ne5 Ra8 Kd2 g3 Ng4 gxf2 Ne3 Ra6 g4 Ra3 g5 Ra8 Ng4 hxg4 e4 b5 Ke2 f5 h4 d5 c4 b3 a4 g3 Kf3 d3 c5 g2 a5 d4 c6 d2 e5 b2 e6 b1Q a6 d3 a7 b4 g6 b3 h5 b2 h6 Na6 e7 Qc7 g7 Qa2 h7 b1B Rh5 Bb7 Rg5 Rd8 a8R Nf6 Nh3 g1B Qb3 d1Q+ Be2 f1N g8Q d2 Ra7 Ne3 Rh5 Ng2 Rh6 Rd5 Rh5 Be3 Qb4 Qdc2 Bd3 d1N Be4 Nf2 Ng1 Nd3 Ne2 Qd6 c7 Qdc6 Rg5 Kd7 Nc1 Ne8 Qg6 Rg8 h8Q Qd2 Qgh5 Rg6 Qh4 Rgd6 Qf2 Qac4 Ra5 Qda2 Qa1 Bc2 Ke2 Nh4 Rg1 Rd4 Re5 f3+ Kf1 f4 Qg2 f2 Ke2 Ng6 Kf3 f1N Kg4 Nh4 Bd5 Nd2 Bf3 Nac5 Be4 R6d5 Bf3 Nde4 c8Q+ Kd6 Qa8 Kd7 Qf2 Ne6 Bh1 Rd6 Bf3 R4d5 Bg2 N8g7 e8Q+ Kc7 Qac3 Nd2 Qb1 Rc5 Rf1 Q6d5 Rh1 Nb4 Qac8+ Kb6 Qbb3 Ba8 Rd7 Bh7 Qh5 Ne8 Qe1 Qdd3 Bb7 Ne4 Qa1 Rcd5 Rg1 Qdc2 Qb8 Qc6 Qbb2 Qd2 Qc2 Nd3 Qg3 Qe1 Qcf2 Qee2+ Qgf3 Qb5 Bc6+ Kc5 Ra7 N6c7 Qb7 Qba6 Qb3 Qb6 Bb7 Qb5 Qb4+ Kb6 Bc8 Kc6 Bb7+ Kd7 Qg2 Qec2 Qff2 Qba4 Ba6 Bc6 Bb7 Qe2+ Qgf3 Qb5 Ba8 Bb7 Qg2 Qc6 Qf2 Qed2 Q3g2 Qe2+
bN3q1n/1NN1q1QB/b1pb4/2N2N1K/r2r1QQq/1rbq3b/1R6/k5n1 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 e5 a4 exf4 Kf2 d5 Bb2 dxc4 Ke1 h6 Be5 f3 Bf4 Ra6 Ra3 Ra8 Rd3 Bc5 Rd5 gxf4 g5 Be7 g6 Bf8 Rg5 hxg5 Kf2 Kd7 e4 Ke6 h4 Ke5 h5 Kd4 d3 f5 e5 b5 g7 g4 e6 b3 h6 c6 e7 c3 e8N c2 h7 c1B a5 g3+ Ke1 f2+ Ke2 g2 Kf3 b2 a6 b4 a7 b3 Qd2 Qh4 Qd1 Nd7 Qc2 Ne7 g8N Bd2 Nc7 Ne5+ Ke2 f3+ Kd1 f4 Rh3 Bb7 Nh6 Bc3 Qd2 N7g6 Rh2 Bd6 Qe2 Rad8 Nd2 Ba8 Ne4 b1B Nc5 b2 Qd2 Qe7 Be2 f1B Qc1 Rhg8 h8Q f2 Qg7 f3 Qg5 Nh8 Qg4+ Ke3 d4 Bd3 d5 Ba6 Bd3 b1R+ Kc2 Rge8 Bh7 Rb3 Kd1 Rg8 Qc8 Kd4 Nf5+ Kc4 Qe6 Kb4 Qeg6 Ka3 Qg4 Kb2 Qf4 B8b7 a8Q Ka1 Qc8 Ba8 Qe6 Rd7 Qeg6 Rgb8 Qgg5 R8b4 Qgg4 Bb2 Kd2 Bc3+ Ke3 Ra4 Q7g6 Bfc4 Qg7 f1Q Ke4 f2 Nf3 g1Q Rg2 Nd3+ Ne5 Qh2 Kf3 Qhh4 Rh2 Rd8 Ned7 Nc1 Nb8 Ne2 Rg2 Qb1 Rh2 f1Q+ Rf2 Bde5 d6 Be6 d7 Qbd1 Nd3 Bd6 Nc5 Rf8 d8N Ng1+ Ke3 Qd5 Ndb7 Rd8 Rb2 Qdc4 Ng3 Qfd3+ Kf2 Qhf6 Nf5 Qff8 Kg2 Qd1 Kg3 Qdd3+ Qf3 Rd7 Kg4 Qb4 Kh5 Qbc4 Nh6 Bh3 Nf5 Qce4 Q3g4 Qe1 Kh6 Q1h4+ Qh5 Bde5 N7e6 Qhg3 Qhg4 Rdd4 Nc7 Bd6 Kh5 Qgh4+
1rkb4/4B1R1/rp3B2/1qqB1r2/br2b1BK/1nQbB3/1NQ2qn1/2Q2n2 w - - 0 1 illegal: No possible last move
n2N2Kn/1Q3R1Q/2p1q3/Q1n1NN2/rr5B/2rQnn1k/bQ1r2pq/4b3 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 gxf4 a4 e5 c5 h5 g5 e4 Bh3 d6 Bg4 dxc5 Ra3 hxg4 Rb3 c4 Rf3 exf3 Kf2 Ke7 d4 Ke6 e4 f5 h4 b5 g6 g3+ Kf1 c6 h5 g2+ Kf2 b3 a5 b4 g7 b2 e5 b3 h6 c3 a6 c2 h7 Bb4 a7 Nd7 Nc3 b1Q Nh3 b2 Qe1 Qe7 Qd2 Nh6 g8Q+ Nf7 Qe8 Nb6 Nd5 Qa2 Ne3 b1R Bb2 c1N Rg1 Nb3 Qg8 Nc5 Qd3 Qc7 Rf1 Bc3 Qg5 Rd8 Ng1 Nh8 Qg7 Qb8 Qb7 Qd5 Bc1 Rb4 Bd2 Rd7 Be1 Qe4 Ng4 Qc7 Ne2 Qd5 Ng3 Qa2+ Kg1 f2+ Kh2 f3 Kh3 f4 Kh4 Qd6 Kg5 Bd2 Rg1 f1N Kh6 f2 Nf5 Ne3 Rf1 Rd8 Kg7 f3 Qc7 Bc3 Qb7 Rd7+ Kg8 Qb8 Rh1 f1R Bh4 Rc1 Rf1 Be1 Rf2 Rc3 Rf1 Nf7 h8Q f2 Qh5 Nh8 Qh7 Kd5 e6 Qh2 e7 Ke6 Ne5 Qc4 Rh1 f1N Rg1 Nd2 Rf1 Nf3 e8Q+ Re7 Qd8 Rd7 Qb8 Ba6 Qdc8 Qd5 Qcb7 Bc4 Rf2 Ba2 Rf1 Ng5 Rf4 Qe4 d5+ Kf6 Kf8 Qc4 d6 Ke6 Kg8 Nf3 Rg4 Qe4 Rg7 Qc4 Bg3 Kf6+ Rf7+ Kg5 Bh4+ Kf4 Qf8 Rdd8 d7 Qe6 Qe8 Rab8 a8Q Ra4 Qa5 Na8 Qb2 Rbb4 Qf8 Rdb8 d8N Rc8 Ng6+ Kg4 Qe7 Kh3 Qb7 Rc7 Ne5 Rd7 Qdc2 Rd1 Qd3 Rd2
2b1q2n/2Q1n3/3rq1R1/p1R1pq2/4N1r1/1Q2KRrk/Rn1BRbr1/1q3Q2 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 fxe6 f5 e5 Be3 e4 Bg5 Qc7 Bc1 Qd8 g4 Qb6 f6 Qd8 Nd2 Qb6 Bh3 Qd8 Ndf3 h6 g5 h5 Bf5 gxf5 Ne5 Bh6 Ng4 hxg4 Ne2 Bg7 Ng1 Bf8 Kf2 Kf7 h4 Kg6 c4 Kh5 b4 a5 b5 d5 f7 d3 g6 a3 g7 a2 b6 d2 c5 e3+ Ke2 g3 b7 Kg4 c6 d4 h5 g2 c7 f4 h6 f3+ Kd3 e2 h7 e1Q Rh5 Qe8 Rc5 Nd7 b8Q Ne5+ Kc2 d3+ Kc3 Ng6 Kd4 Qe6 Qa4 d1N Bf4 d2 Rd5 f2 Bh6 f1Q Nf3 g1R Re5 Rg3 Qab3 Nb2 Ng5 Qff5 Ne4 d1R+ Bd2 Kh3 Q8b5 Ra6 Rc5 Rg1 Qf1+ Rg2 Re1 a1Q Re2 Nf6 g8R Nd5 Rg7 Qb1 Rg8 Bh6 f8R Rd6 Rg7 Rg8 h8R Rd7 Rhh7 Nh8 Rg6 Rd6 Rhf7 Bg5 Rh7+ Bh4 Rh5 Ba6 c8Q Rg7 Qc7 Bc8 Rgf6 Rg4 Rg6 Re3 Rhg5 Be1 Rf7 Reg3 Rff6 Q6d7 Rf8 Qfe6 Rf3 Qf5 Rc2 e6 Rc5 Ne7+ Ke3 e5 Rf6 Ra6 Rgg6 Rb6 Rd6 Qde6 Rd4 Ra6 Ra4 Rd6 Ra2 Bf2+
n1q1b1bk/n1p1Q1r1/r3p2p/RK2Q1N1/2B1rb2/2BQ2nb/5B1Q/5Qb1 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 g4 f5 g5 h5 Ra2 fxe4 h4 Rh7 Ra3 Nf6 Nc3 Bh3 Nd5 Nc6 Ne3 Be6 Ng4 hxg4 h5 Bc8 h6 Rh8 h7 Nb8 Rah3 Ng8 Rh6 gxh6 Ke2 Kf7 f4 Kg7 d4 b5 g6 c3 a5 b3 d5 g3 a6 b4 f5 g2 d6 c2 d7 e3 Kd3 e2 Kc4 e1R a7 b2 Rh4 b1B Be2 b3 Qd6 b2 Bd2 c1N Kb5 Nf6 Nh3 g1B Bc3 Ba2 Qh2 b1B Ra4 Bg8 Ng5 Nc6 Bc4 Re4 Ra5 Ne2 Bd4 e6 Bf2 Bd6 Qe5 Qe8 d8Q Bd7 Qh2 Nd5 f6+ Kf8 f7 Kg7 Qe7 Bf4 Bd3 Nb6 Bc4 Rd8 a8Q Ng3 Qa7 Na8 Qac5 Bd3 Qa3 Bf1 Qd3 Bh3 Qc5 Kf6 g7 Qf8 Qcd6 Be8 Qe5+ Kg6 Qf1 Rd7 Qd3 Qe7 f8Q Qd8 Qf1 Qc8 Qe7 Rd3 Ra1 Ra3 Ra2 Ra6 Ra5 Bgf7 Qd3 Rf8 h8B Bg8 Qf1 Rf7 Qd3 Bh7 g8Q+ Rg7 Qgf8 Bg8 Bb6 Bd2 Qff1 Bf4 Nf3 Kh7 Bf2 Rf7 Bf6 Rg7 Ng5+ Kh8 Qf5 Bg6 Bc3 Be8 Qe5 Na7+
1b1Q4/r1RbqnB1/1N1Q1r1B/k1prp3/1bpqQ3/2B1n2b/4q3/1BK1B3 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 d5 c4 dxc4 a4 f5 Nc3 fxe4 f5 Ra6 Nd5 Ra8 Nf4 gxf4 g5 h5 Ra3 Na6 Rg3 Nb8 Rg4 hxg4 d4 Kd7 Kd2 Kc6 h4 Kb6 f6 e5 f7 c5 h5 g3 h6 e3+ Kc2 e2 h7 e1B g6 b3+ Kb1 g2 d5 b2 g7 f3 d6 f2 d7 Nc6 Rh6 Ra7 Ne2 g1Q Qd3 Bb4 Nc3 Ka5 Nd5 b5 Bd2 Nce7 Be1 Nf5 Rc6 Ne3 Rc7 Nh6 g8Q Qe7 d8B Bd7 Nb6 Bh3 Be2 f1R Qd6 Rf6 Bd3 Qg2 Qg6 Qe2 Qe4 Rg8 h8B Rg7 Ka2 b1B+ Ka1 Bc2 Kb2 Rg1 Bc3 Rd1 Bg7 Bb1+ Bc2 Rd5 Kc1 Bd7 Bd3 Bc2 Be1 Bd1 Bb1 Bc2 Qh4 Bcf5 Qe4 Bh3 Bc3 Qe8 Be1 Be7 f8B Nf7 Qe6 Bd6 Bh6 Bc3 Bfg7 b4 Qe7 b3 Qe6 Ka6 a5 Bb4 Qe7 Kb5 a6 Ka5 Qe6 Rf3 Bdh4 Qe7 Bc3 Rf5 Bhe1 Rf6 Rc6 Bb8 Qd6 Rc7 a7 Rb7 a8Q+ Ra7 Bc2 b2+ Kb1 Qd3 Rc7 Qd4 Bd3 Ng4 Kc2 b1Q+ Kd2 Qb3 Kc1 Qa2 Bb1 Qe2 Qac6 Be6 Qe8 Ne3 Qed8 Bd7
B1n2n2/k7/2n2N2/1pprb1Qq/2K2N2/1r1rpQ2/b2qQ1Nr/Q2R2Qn w - - 0 1 legal: proof: f4 a5 c4 g5 a4 f5 g4 d5 e4 dxc4 b4 fxe4 f5 axb4 Bb2 h6 Be5 Qd5 Bf4 Qd8 Ra3 Ra6 Rg3 gxf4 g5 Ra7 g6 Ra8 Rg5 hxg5 Ke2 Kd7 h4 Kc6 d4 Kb6 h5 e5 a5+ Ka7 g7 c5 f6 b3 h6 b6 f7 b2 a6 c3 d5 e3 Kd3 g4 h7 f3 d6 e4+ Kc4 e2 d7 e1N Rh4 g3 Nd2 b1R Rf4 g2 Qe2 f2 Nb3 c2 Qe3 c1R+ Qc3 e3 Ne2 g1Q Rg4 Nf3 Bg2 f1N Nbd4 Qh1 Nf4 Rd1 Nde2 Rd5 Qd3 Ne7 g8Q Bg7 f8N Ng3 Rh4 Qd1 Rh1 Nd4 Be4 Be5 Ng2 Rb5 Nef4 Ne6 Qe2 Rb3 Bf3 Qe8 d8Q Qh5 Nd7 Nf8 Nf6 Qd2 Rd1 Nbc6 Qg5 Nh1 Qe8 Rb2 Qeg6 Be6 Qb1 Nc8 Qa1 Rg8 h8Q Rb3 Qhh6 Rh8 Qhg6 Bf5 Qg8 Bb1 Q8g6 Ba2 Qg8 Rb8 Q8g7+ Ka8 a7 Rb7 Qg8 Rbd7 Q8g6 Kb7 a8Q+ Kc7 Qa4 R5d6 Qh4 Kb7 Qh2 Rdd3 Qg1 Qg5 Qb4 Rh2 Kb5 Qh5 Qg5 Ka7 Bd5 Nd8 Ba8 Nc6 Qf3 Qe2 Kc4 R7d5 Qbe1 Qd2 Qee2 b5#
8/1bB5/2NQ1Rr1/1q2N1n1/k2ppNpK/n5QN/3p3b/Qrn1nqrN w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 c5 d4 cxd4 a4 f5 Bb5 fxe4 f5 Nc6 Ra3 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Be2 Na6 Bf3 Nb8 Bg4 hxg4 Kf2 b5 c4 d5 h4 Kd7 a5 Kc6 g6 e5 f6 b3 f7 b2 a6 b4 c5 Kb5 a7 b3 g7 d3 h5 f3 Kg3 e3 c6 f2 h6 f1Q h7 e4 c7 d2 Rh6 Qdf6 Nh3 Q6f5 Rf6 Bb7 c8N Na6 Ne7 Nc5 Kh4 Nd3 Nc6 Nh6 g8Q Bd6 f8N Ka4 Ng6 Bh2 Ngf4 Nf7 Qb8 Rg8 h8N Ng5 Nf7 Rg6 Nfe5 Qd7 Qf3 d4 Qd6 e2 Qg3 Rc8 a8Q+ Ba6 Na3 e1N Nc2 b1R Ba3 b2 Ne3 Nc1 Nf5 Qb7 Bc5 Qbb5 Bb6 Rc7 Ba5 Ra7 Bc7 Bb7 Qg1 Ra5 Ng3 Ra6 Qb8 Rb6 Qh1 Ra1 Qg1 b1N Nh1 Na3 Qg3 Rb1 Qg8 Ra1 Qa2 Rb1 Nb8 Rc6 Qa1 Rc3 Nbc6 Rd3 Qg2 Rg3 Qf3 Rg2 Qg3 Rg1
1r1br3/Q1p4B/2Nr1B1k/2K3Nb/3Br3/3n1b1B/n2Q1rb1/qq1N3B w - - 0 1 legal: proof: f4 g5 a4 d5 b4 e5 g4 exf4 c4 dxc4 h4 gxh4 a5 b5 axb6 a5 b5 a4 Ra3 Bxa3 Rh3 Bf8 Rd3 a3 Rd7 Qf6 Rd8+ Qxd8 Kf2 f5 e4 Kf7 d4 Kg6 g5 h5 e5 f3 Ke3 h3 e6 h2 e7 h1B d5 f4+ Kd4 h4 b7 c3 d6 a2 d7 a1Q b6 f2 Bb2 c2 Qd2 c1R Qe3 h3 Qf3 h2 Ne2 Nf6 Nec3 Rd1+ Kc4 Nc6 b8B Nd5 b7 Ne5+ Kb5 Bg2 Qe3 h1B Ne4 f3 Ba7 Nc3+ Kc5 Rb8 Qd2 Na2 Nbc3 Kh5 g6 Nd3+ Kb5 Rg8 e8B Be7 Ng5 Kh6 g7 Bf6 Bf7 Re8 g8B Qe7 d8N Bg4 Bd5 Bh5 Be3 Qh7 Nc6 Bd8 Bd4 Rde1 Nd1 R1e4 Bf6 Qg6 Bbd4 Qh7 Be2 f1R Bge6 f2 Bh3 Qg6 Beg4 Rfe1 Bf5 f1R Kc4 Rf2 Kb5 Qg8 Bh7 Qg6 Kc4 Bgf3 Kb5 Bhg2 Kc4 Ra8 b8Q Ref1 Qa7 Rb8 Qa4 Rfe1 Qa7 R4e6 Be4 Rd6 Bd5 Ndb4 Kc5 Qgb1 Bde4 Nd3+ Kc4 Be2 Bfe5 Bgf1 Bh1 Bef3 Bh8 B1g2 Bhf6 Nb2+ Kc5 R1e3 Bde5 Re4 Bd4 Nd3+
1qkNr3/1b1NrnN1/4p3/Q7/N3bR1R/nR2p2K/1p1nq2b/N5rQ w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 a5 fxe4 Ba6 Nxa6 Ba3 Nb8 a6 b3 Bb4 Kd7 Bc5 Ke8 Ba7 Nd7 Bb8 Nxb8 Kf1 Kd7 g4 b5 Kg2 h5 f4 c5 d4 b4 g5 b2 g6 e3 g7 h3+ Kg3 h4+ Kh2 c4 d6 c3 f5 c2 d5 c1Q f6 b3 f7 Rh7 a7 Qc2+ Ne2 Nc6 Na3 Na5 Rb1 Nh6 g8R Nc4 Rg4 Nd2 Nc3 Bb7 Rf4 Qb8 Na4 Kc8 Qf1 Bg7 f8N Nf7 Nd7 Be5 Qd1 Qd3 Nc2 e6 Na1 Qc7 Qf3 Qe2+ Qg2 Rb8 a8N Qb6 Nc7 Rg7 Rbf1 b1N Ne8 Na3 Rb1 Rh7 Ng7 b2 Rbc1+ Qc7 Rc3 Ra8 Rb3 Qb8 Rb1 Ra7 Rh1 Rh8 Ndc5 Re8 d7+ Kc7 d8N Kc8 d6 Be4 Kg1 Rae7 Nd7 Bb7 Rh2 Be4 Qh1 Bb7 Re4 Bf4 Rf2 h2+ Kg2 Be5 Kh3 Bf4 Qd1 h1B Rf3 Bg3 Rff4 Bf3 Qh1 Bh2 Re5 Bfe4 Rh5 Qf1+ Kg4 h3 Rh4 Bg1 Kg3 h2 Kg4 Qb5 Kh3 Qe2 Qf3 Rf8 Nf6 Qa7 d7+ Kc7 Nc6 Rfe8 Qf1 Qb8 Qg2 h1R+ Qh2 Kd6 d8Q+ Rd7 Qb6 Rde7 Qb4+ Kc7 Qa5+ Kc8 Nd8 Bf2 Nd7 Rg1 Qg2 Bg3 Qh1 Bh2
k1nN4/p2Nnb2/1Q1N1q1Q/4R1b1/r2pNq1p/r2qp1r1/4K1Q1/3R1N2 w - - 0 1 legal: proof: e4 c5 a4 b5 h4 f5 d4 fxe4 b4 g5 d5 gxh4 Bc4 Nc6 Ba2 c4 Bb3 cxb3 c4 Nf6 axb5 Nb8 c5 Nxd5 c6 Nf6 Bg5 Ng8 Bf4 Na6 Bb8 Nxb8 f4 e5 g4 d5 g5 h5 c7 Kd7 f5 b2 g6 h3 g7 e3 f6 e2 f7 d4 b6 Kc6 b7 e4 Nf3 h2 Qb3 Qf6 Ra3 Be7 f8Q Be6 c8N Bf7 Ng5 Nd7 b8N+ Kb7 b5 Nb6 Nd2 h4 Ra1 Rh5 Rd1 b1Q Nf1 Qd3 Nc6 Qf4 Rg1 h1Q Nd8+ Kb8 Qe6 Qhf3 Nd6 Nc8 b6 Qf6 b7 Q3f4 Rg3 Rh6 Re3 Rh5 Nf3 Ra5 N3d2 Ra3 Qb3 Q6e5 Qb1 Bg5 Qb6 Nge7 g8Q Qef5 Qh6 Qf6 Rf3 Ra4 Kf2 e1R Qgg7 Qg4 Rf5 Re3 Qg8 Rf3+ Ke1 e3 Re5 Qgf4 N2e4 Rg3 Qb3 Kc7 b8N Ra3 Nd7 Rb8 Qgg6 Rb4 Qa2 Rba4 Qg2 Qb3 Ke2 Qb1 Ndc5 Kb8 Nd7+ Ka8 Re1 Qb3 Rd1 Qh8 Qe6 Qb1 Qb3 Qhf6 Qb6 Qd3+
2qQnB2/2r1q3/1p1q1krb/BRBR2r1/1Qb1Bb2/8/q5nq/1n2Q1KB w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 c5 Nc3 cxd4 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Bg7 Nf2 Bf8 Ng4 hxg4 Kf2 Kf7 h4 d5 a4 e5 c4 f3 c5 b3 a5 d3 g6+ Kf6 h5 b6 h6 d2 g7 g3+ Kg1 g2 a6 d4 a7 e3 c6 e2 h7 e1Q c7 f2+ Kh2 g1Q+ Kh3 d3 Qe2 d1R Qg4 d2 Be2 f1Q+ Qg2 e4 Ra6 e3 Bd3 b2 Bb1 e2 Rh2 Be6 c8B Nc6 Ra3 Na5 Rd3 Qff2 Qh1 Bc4 Bb7 Rc8 a8Q Rc7 Rd5 Qc8 Be4 b1N Ba3 Bd6 Bc5 Bf4 Qa6 Rc1 Rg2 d1Q Rg5 Rc6 Qb5 Qgh2+ Kg4 Qdd2 Qb4 Qa2 Rh5 Qd4 Kf3 Qeh4 Qg1 e1B Qe3 Beg3 Qee1 Bh6 Rg5 Bf4 Ba8 Ne7 g8Q Nb7 Qd8 Rg8 h8B+ Rg7 Rh5 Nd6 Bb7 Ne8 Ba8 Kf7 f6 Rg5 Bb7 Ke6 f7 Nf5 f8B Ne3 Be5 Qdd2 Bc3 Ng2 Ba8 Rc7 Bb7 Rg6 Bc6 Qe7 Rhg5 Be2+ Kf2 Qd1 Bd2 Bc4 Rh5 Kf6 Rhg5 Qh4+ Kg1 Rc3 Rge5 Rcg3 Rd3 Rh3 Bf5 Qb2 Bf2 Qe6 Qa3 Qc8 Ba5 Rhg3 Rb5 R3g5 Bc5 Qa2 Qb4 Ne3+ Bg2 Qh3 Be4 Qdd2 Rd6+ Qhe6 Rd3 Qd6 Rd5 Qe2 Qg3 Qh5 Bh1 Ng2 Qge1 Qh2#
rbN1QB2/6Q1/1K1b3N/1Nbr4/3R4/4nbpN/1b2N1rb/kbnN1n1q w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 d5 c4 dxc4 a4 f5 Ra3 fxe4 f5 Qd7 Rh3 Qd8 Rf3 h6 Rf4 gxf4 g5 h5 Bh3 Qd5 Bg4 hxg4 Qb3 Qd3 Qd1 Qd8 Ke2 Kd7 d4 Kd6 h4 Kd5 h5 b5 f6 e5 h6 c5 a5 b3 f7 c3 g6 Kc4 g7 c2 d5 f3+ Ke3 b2 a6 Kb3 d6 Ka2 a7 c4 h7 b4 d7 f2 Na3 f1N+ Ke2 b1R Qd3 e3 Rh6 b3 Nf3 c3 Nh4 b2 Qd2 e4 Rf6 Bb7 Rf4 Nc6 Nc4 Nd4+ Ke1 e2 Kf2 Nh6 g8N Ka1 Ne7 Rg8 h8Q Nb3 Qg7 Nf5 Nhg6 N5e3 Nc8 Bd6 f8N e1B+ Ke2 Bc5 Ne6 Qh4 d8N Qh1 Qdd7 Bg3 Ng5 Bh2 Ndf7 g3 Qe6 Rd8 Nh3 Rd5 Qe8 Bc6 Bd2 c1B Nh6 c2 Bb4 Bd2 Rh4 c1B Ngf4 Bc3 Rg4 Be5 Ba3 Bb8 Rh4 Nc2 Ne3 Bcd6 Nd1 e3 Ng6 Bb7 Rd4 Bc6 Kd3 e2 Kc4 e1B Bb4 Bf2 Ngf4 Bfg1 Ne2 Bge3 Rg4 Bec5 Rd4 Bb7 Kb5 Nce3 Re4 Re5 Rg4 Bf3 Rd4 Rd5 Ka6 Bd2 Kb7 Rc1 Ba3 b1B Kc6 Rc2 Kb7 Bcb4 Kb6 Bbc3 Bb4 Bb2 Bc5 Nc1 Ba3 Bf4 Bf8 Bfd6 Neg1 B2b4 Ng5 Rd2 N5h3 Rg2 Ne2 Bbc7+ Ka6 Rb8 a8N B4a3 Ka7 Bac5+ Ka6 Ba5 Nc7 Ra8+ Kb7 Bab6 Nb5 Ba7 Ka6 Bab8+ Kb7 Bb4 Kb6 Bbc5+
1r1q2nR/Q2q4/K7/1qQn4/BB2n3/1np1b1Bn/B2B1q1B/1rNb1kb1 w - - 0 1 illegal: No possible last move, all moves rejected
2qnQQ2/q1B4n/n7/1q2n2b/nr1n1p2/RBr1R1Q1/1b4RK/1k1qQ1Q1 w - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 Nh3 e4 Nf2 a6 Ng4 axb5 Nd2 hxg4 Nf3 exf3 Ba3 b4 Bb2 Qa5 Bc1 Qd8 Kf2 Ke7 Kg1 Kd6 h4 Kd5 c4+ Ke4 a4 f5 a5 d5 g6 b5 e3 b3 c5 b4 g7 d3 c6 d2 h5 b2 a6 b1Q h6 b3 c7 f2+ Kg2 g3 h7 d4 a7 f3+ Kh3 d3 Ra2 b2 Ra6 g2 Rh6 g1N+ Kg3 f4+ Kh2 Bg4 c8R Na6 Rg6 Ne2 Rd6 Qa1 Rf6 b1Q Rf5 Nd4 Rc7 Nc6 Qe1 d1Q Bh3 f1N+ Kg1 f2+ Kg2 d2 Rb7 Kd3 e4 Kc2 e5 Qb5 e6 Nh2 e7 f1N e8Q Nf6 g8Q Nf3 Rb6 Bg7 Rg5 Rc8 a8Q Bh5 Be6 Kb1 Bb2 N1h2 Bb3 Nfe5 Qa7 Nhf3 Rh3 Nfd4 Kh2 Rb8 Re3 Qc8 Rg6 Nd8 Rg2 Qa3 Rc6 Qe7 Qb6 Qa7 Rcc3 Rb7 Rcd3 Rc7 Qgf8 Rc3 Qg6 Rg8 h8Q Nh7 Qgg3 Bf6 Ba1 Rg7 Qe8 Rb7 Qhf8 Nf5 Bg8 Rc1 Bc3 Qb2 Qg4 Nf3+ Kh3 Qc2 Re4 d1N Bd4 Nc3 Be5 Na4 Qgg3 Qd1 Qbg1 Qb4 Bb8 Bb2 Ra3 Rc3 Bb3 Ne5 Kh2 Nd4 Re3 Qbc5 Bd6 Rb4 Bc7 Qb5
r3bRRb/r1q1K2k/2R2RRB/2r3p1/R2rnb2/6p1/1Q1NQr1q/1n3n2 w - - 0 1 legal: proof: g4 f5 b4 h5 e4 hxg4 d4 c5 d5 a5 d6 axb4 Nc3 c4 Bd3 cxd3 e5 exd6 Be3 d5 Bc1 d4 Ne4 fxe4 Kd2 Kf7 c4 Kg6 a4 d5 f4 b5 h4 b3 e6 b4 c5 b2 f5+ Kh7 f6 b1N+ Ke1 g5 Kf2 d2 Kg3 b3 h5 e3 h6 d3 f7 d4 c6 e2 a5 e1B+ Kh2 g3+ Kh3 b2 Kg4 Nd7 Kf5 Bg7 f8Q Nb6 a6 Bd7 a7 Qc7 Qf6 Nd5 Qe2 d1R Ra4 d2 Nf3 d3 Rf1 Bf2 Qfe5 Be3 Qc3 Rc8 a8R Ngf6 R8a6 Bf4 Rb6 Ne4 Qb4 Be8 e7 Ne3+ Ke6 Bd7+ Kf7 Ra8 e8R Rf8+ Ke7 Bh8 Qb3 Rf5 Rf8 Rc5 Rf2 Rh1 Rba6 d1Q Nd2 Qg1 Qb6 Kg6 h7 Qh2 Qb5 Nf1 Qb8 Bhe5 h8R Ra7 Rhg8+ Kh7 Rf3 Bh8 Qb4 Rg1 Qa3 Rg2 Rg6 Qa5 c7 Rf2 c8R Qc7 Rac6 Ra8 Rff6 Ra7 Rcg8 Ra8 Nc4 d2 Qb4 d1R Nd2 Na3 Qd4 b1R Bb2 Ra1 Bc3 Nb1 Qb4 Qc8 Qb2 Qc7 Rff8 Ra2 Bg7 Ra7 Bh6 Ra8 Nb3 Rd4 Nd2 Ra3 Rc4 R3a7 Ra4 Bfe5 R3f5 Bf4 R5f6 Be8+
1B2b1BB/1Q1rb2n/1RK5/2Q5/2n1qQ1p/p1b1BB2/n4q2/qR2qkrb w - - 0 1 legal: proof: d4 b5 h4 g5 f4 c5 g4 cxd4 a4 bxa4 Nf3 e5 h5 exf4 Nh4 h6 Nd2 Ke7 Ndf3 gxh4 g5 Ke8 g6 Bc5 Ng5 hxg5 Be3 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 c4 f5 b4 d5 g7 a5 e3 d3 c5 a3 h6 d4 h7 d2 c6 f3 c7 g4 Bc4 g3 Rb1 g2 Rh2 g1B Bf7 Kd3 e4 f2 e5 f1Q e6 f4 e7 a4 e8Q a2 Rf2 a1Q Qe7 a3 Rb2 f3 Qc5 Qe1 Ba2 Ra7 Rc2 Na6 Kc6 Qde7 b5 Bb7+ Kb6 Nb4 c8Q Nf6 g8B Q7e4 Qe5 Be7 Bgb3 Rg8 h8B Nh7 Rg2 f2 Qeh5 f1Q Be6 Qff2 Qdg4 d1B Rc6 Ba4 Bad5 Na2 Qf4 Rg6 Rg4 Ke2 Be3 d3 Bg8 d2 Rd6 Ba8 Qb7 d1N Kc6 Nb2 Qhe5 Bh2 Rg1 Nc4 Qd4 Rg3 Qc5 Rg5 Rh1 Rg1 Rf6 Kf1 Rh6 Bd1 b6 Bh5 Re6 Qed4 Bf3 Qd3 Qf8 Be5 Qf4 Bc3 Rh2 Qg3 Rb2 Qgf2 Rb1 Be8+ Kc7 Ra4 Qa6 Bd2 b7 Na5 b8B Bc3 Be4 Rd4 Reb6 Nc4 Bh1 Bg2 Qa8 Qe4 Qb7 Bh3 Bf3 Bg2 R6b2 Bh1 Rb3 Qf5 Rb6 Rd7+ Kc6 Qe4+
7R/1R5p/3bN2K/Qq2nqq1/1rR1p1b1/N3kN2/1nnb2Rb/1Q1q2rR w - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 axb4 Be3 d5 Bd3 dxc4 d5 e5 Bd4 exd4 e5 Nh6 Bc2 Ng8 Be4 fxe4 Kd2 Ke7 a4 c5 g4 b5 f4 b3 d6+ Ke6 g5 Kf5 e6 b4 a5 h3 g6 d3 Ke3 d2 d7 c3 a6 h2 a7 b2 g7 c4 e7 b3 e8Q c2 Na3 c1B Nf3 b1Q Qc2 d1N+ Ke2 c3 Ra2 b2 Qa4 c2 Qf7+ Nf6 g8R Bd6 Re8 Nc6 Re1 h1Q Qe7 Bd2 Qa5+ Nd5 Rg8 c1B Rg2 Qh6 Rh1 Qdf8 d8N Ne5 Qb7 Qg5 Ne6 Rb8 a8R Nb4 Ra7 Rg8 Qbb5 Rb6 Rb7 Nc2 Qd3 Rb4 Ra1 Kf6 f5 Bf4 Qb3 Bcd2 Qa2 Qc1 Qb1 Bh2 Ra2 Nc3+ Kf2 Qd1 Ra1 Bd7 Ra2 Na4 Ra1 Kf7 f6 Kg6 f7 Kf5 Ra2 Qfg7 f8R+ Q7f6 Rc8 Qfg6 Rc4 Bc8 Qc1 b1Q Ra1 Qb3 Qb1 Qd3 Ra2 Qd5 Rb2 Qb5 Rb3 Nb2 Rd3 Bb8 Rd8 Rg7 Rh8 Bd6 Rg4 Q6h5 Kg2 Qf7 Kh3 Qff6 Rg2 Bd7 Nf8 Kf4+ Ne6+ Ke3 Rbb8 Qgg6 Rb7 Qff5+ Kh4 Rg8 Rg5 Qgf6 Kh5 Qd8 Kh6 Rg7 Rh5 Rg1 Rg5 Bc8 Rg6 Qdg5+ Kg7 Qg3 Nc7 Qf6+ Kh6 Bh3 Ne6 Qf5 Kg7 Qh4 Rg2 Qe7+ Kh6 Bg4 Qa1 Qd8 Qb1 Qdg5+
k3B3/1pBbKp2/qp1N4/2Q3p1/B1n1pnQ1/B1rnB1n1/1Q2p3/2b1N1r1 w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 g5 h4 d5 f4 dxe4 a4 h6 Rh2 Na6 Rf2 Nb8 Ra3 Bf5 Rc3 Bd7 Rc6 Bc8 Rb6 cxb6 Rg2 gxf4 g5 Na6 g6 Nb8 Rg5 hxg5 Ke2 Kd7 d4 Kc7 c4 e5 a5 e3 Kd3 f3 Ke4 b3 a6 b2 c5 e2 h5 Qe7 Kd5 Qe8 c6 Rh6 a7 Bg4 g7 Na6 Nd2 b1N Ba3 Bd7 Ne4 Be7 Nd6 Rg6 h6 Rb8 a8Q Rf6 h7 Qf8 h8B Nh6 g8B Rf5 Bh7 Nc5 Qaa4 Bf6 Qdb3 Nd2 Qb2 Ng8 Qa5 Nd3 Qc5 Ra8 Bg2 Kb8 c7+ Ka7 c8Q f2 Nf3 f1N Ne1 Ng3 Bh3 Rf3 Be6 Nf2 Bc2 e4 Ba4 Nc4 Bh3 Nd3 Bg4 Bb5 Bd7 Re3 Be8 Bd7 Bg7 Be5 Bh8 Bf4 Bg7 Rf3 Be5 Bc1 Bf4 Rf1 Bd2 Rg1 Be3 Bb5 Qg4 Rc8 Qf4 Ka8 Qg4 Na5 Qcc3 Bd7 Qc5 Nb4+ Ke5 Ne7 Kf6 Ng6 d5 Rc7 Nd3 Qg8 Ne1 Nf4 Ke7 Qh8 Nc8 Nbd3 d6 Bb5+ d7 Nc4 Nd6 Bc6 Qb3 Qa1 Qb2 Rc8 d8B Bd7 Bb3 Rc6 Bc7 Qa2 Bb4 Qa5 Ba3 Qa6 Ba4 Nce5 Qcb4 Rc3 Qc5 Nc4
Br1k1b2/N1nr1R2/2bRnK2/1NR1RR2/6R1/qnbr3r/2bp1Rrp/8 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 c5 h5 cxd4 Rh3 e5 Rh1 exf4 g4 h6 Qd3 b3 Qh3 Ra3 Qh4 Ra8 Ba3 Bg7 Be7 gxh4 g5 Bf8 g6 Ra4 Bf6 Ra8 Bg5 hxg5 Kf2 b5 Kf3 d5 a4 f5 e4 b2 c4 h3 e5 b4 a5 b3 a6 h2 h6 g4+ Ke2 g3 Kd3 f3 a7 f2 g7 g2 c5 f4 e6 f3 h7 Nd7 c6 Rb8 a8R Qe7 c7 Nc5+ Kd2 d3 Ke3 d4+ Kf4 d2 Ke5 d1R R1a7 d3 Nh3 g1B Nc3 b1N Ng5 b2 Ra2 Nf6 g8R Bb7 R8a5 Nd5 Bg2 f1R Nb5 f2 Ne4 Bc6 Nec3 Nd2 Na7 b1B Rg4 Ndb3 Ncb5 Bc2 Bf3 Rg8 h8R Rfe1+ Kf5 f1R Rh7 Bd4 Rf7 Bc3 Ra6 Rf2 Rf1 Rh8 Kg6 Rg2 c8R+ Qd8 e7 Ne6 R2a5 Re3 Rf2 Ndc7 Kf5 Kd7 e8R+ Qe7 Be4 Rhh3 Kg6 Bh6 Ref8 Rd2 R7f5 Reg3 R8f7 Bf8 Rb6 Na8 Rc7+ Kd8 Re5 Qa3 Kf6 Bd5 Rcc6 Nac7 Rc5 Bc6 Rba6 Re2 Bf3 d2 Bd5 Rd3 Be4 Be8 Ba8 Rd7 Rd6 Ree3 Raa4 Rd3 Raf4 Ned4 Rff5 Nde6 Rdd5 Rd6 Rdd4 Bc6 Rdd5 Rd7 Rdd4 Na1 Rd6 Nb3
NR4bb/2r4q/R3NQbk/r1n1rn2/3r2K1/1nq1N3/Q1r2Q2/1rRR4 w - - 0 1 legal: proof: f4 a5 b4 c5 d4 cxd4 a4 g5 h4 gxh4 e3 e5 Bc4 exf4 Bb3 b5 axb5 a4 b6 a3 Ba4 Rxa4 b5 a2 Ba3 Ra8 Bb4 Bg7 Bf8 Bxf8 Ke2 h5 Kf3 d5 c4 f5 g4 Kf7 b7 Kg6 g5 d3 b6 d4 e4 h3 c5 h4 c6 h2 e5 d2 c7 h3 e6 d3 e7 Bg7 e8R Nh6 Na3 Qf6 Qb1 d1R Qb2 d2 Qb3 Rb1 Ne2 d1R Nc4 Rh7 Re1 h1B+ Kf2 f3 Kg3 f2 Qc3 f1R Na3 f4+ Kh4 h2 Nc1 f3 Nb3 f2 Nd4 Nf5+ Kg4 Na6 b8Q Bd5 b7 h1Q R8e6 Bh8 Qa7 Nc5 Ra6 Bg8 b8R Rd2 Nc4 Rc2 Rd1 Re1 Qb2 f1R Ne6 Re5 Ne3 Rf7 Rc1 Qh7 Rd1 Bb7 c8N Rc7 Nb6 Be4 Qd4 Rb4 Rac1 a1N Qd8 Rd4 Qf8 Rf7 Qae7 Ra7 Na8 Nab3 Qd6 Rfc7 Qb6 Qh1 Qe7 Qg7 Qf6+ Kh7 g6+ Kh6 Qb4 Qh7 Qe1 Qh2 Qg3 Qd2 Qg2 Qc3 Qf2 Bf7 g7+ Bg6 Rab6 Ra5 g8Q Re1 Ra6 Bd5+ Nf4 Bc4 Qd5 Rh1 Qdg2 Bg8 Qd5 Nd2 Qa2 Ndb3 Rg1 Ne7 Rb1 Rdd5 Ne6 Nf5 Rbe1 Rd1 Rgf1 Rb1 Rc1 Rg1+ Qg3 Rgg2 Rfd1 Rgd2 Qf2 Rd4+
QKqn1k1r/5B2/2Q5/5nq1/1N3n2/rr1pQ3/p1B1nB1N/1NQ1rb1r w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 d4 cxd4 g3 e5 Ra3 exf4 Rb3 axb3 h4 f5 Rh3 h5 Ba3 f3 Bc1 f4 Kd2 f2 Rh1 f3 Rh2 Bd6 Rg2 Bf4+ gxf4 Nc6 Rg5 Nb8 Rg4 hxg4 Kd3 a5 Kc4 d5+ Kc5 g5 e4 a4 c4 g3 h5 a3 h6 g4 h7 d3 f5 d4 b5 d2 f6 a2 f7+ Ke7 b6 g2 b7 b2 e5 g3 e6 Nf6 Bd3 f1Q Bc2 f2 Nf3 g1R Nh2 Nc6 b8N d3 Na6 g2 Nb4 Kf8 Qe1 d1R Qe3 Qe8 Kd6 Re1 Kc7 Nh5 c5 Nd8 c6 Ra3 Kb8 Rh1 c7 g1N Bd2 Bb7 c8Q Bg2 Qc6 Ne2 Bc3 Qe7 Bd4 Nhf4 Ba7 Qg5 e7+ Kg7 e8B Kf8 Bd4 Qg1 Qc1 f1N Bf2 Nfg3 Qe3 Bf1 Qc1 Rg8 h8Q Nf5 Qe5 Q1g4 Qee4 Rh8 Qee3 Kg7 Nc3 b1R f8Q+ Kh7 Bf7 Rbb3 Qfe8 Kg7 Nb1 Qh3 Q8e4 Kf8 Qa8 Qhg2 Qe6 Qc6 Qd7 Qe6 Qdc6 Qc8+
3NN2r/3NQ2q/RQpqq1kr/qn2R2n/Q2b3n/2pq3r/5K2/1R1b3N w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 c4 a5 c5 axb4 c6 g5 Bh3 dxc6 Qc2 c5 Kd1 c4 Bb2 Ke7 Kc1 Ke8 Qd1 f3 Be5 f2 Bf4 gxf4 g5 Ke7 Bf5 Ke8 Bg4 hxg4 e4 f1Q d4 f5 Kd2 Kf7 a4 b5 h4 c3+ Kc1 c6 a5 g3 e5 g2 e6+ Kg6 d5 b3 a6 b2+ Kc2 f3 e7 b4 e8N f2 a7 f4 d6 f3 d7 Qd3+ Kb3 f1R Nh3 g1N Nd2 f2 Ra5 Bg7 Nf3 Rh6 Re5 Qa5 d8N Qd6 Kc4 b1Q Qa4 Qe6+ Kd4 b3 Ke3 b2 Qb4 Nf6 Qb6 Na6 h5+ Kh7 Nc7 Rd1 Ne8 f1Q Nf2 Rb8 a8Q Qg6 Qab7 b1Q Qf7 Nc7 Qe7 Ne2 Rg1 Ng3 Nh1 Qfd3+ Kf2 Nb5 Rf1 Qdd6 Rg1 Qgd3 g6+ Kh8 Rf1 Nf5 Rfe1 Kg8 Rg1 Bh8 g7 Kh7 g8R+ Bg7 Rf8 Re1 Rf1 Re3 Re1 Rg6 h6 Nh4 Rd1 Nh5 Rf4 Qba1 Ra4 Qab1 Rc1 Rf6 Rd1 Kg6 h7 Qeb3 h8Q Bg4 Qhf8 Qf7 Rc1 Qbb3 Rf1 Qbe6 Rb1 Bh8 Qea7 Qh7 Qfe7 Qdc4 Ng7 Qab4 Rf5 Kh6 Ne5 Qcd3 Nd7 Bd1 Nb7 Rg6 Qaa6 Rf8 Ne8 Bd4 Nd8 Rh8 Qaa5 Qa3 Qb4 Rf6 Ra8 Qa5 Qa4 Rg6 Rf6 Kg5 Ra6 Rh6 Rf5+ Kg6 Re5 Rh3+
2R1bNRr/pQ1rR1N1/1np1r3/2Q5/1N2kN1r/bQn1b1q1/K2r4/4n2n w - - 0 1 illegal: No possible last move
7b/3RQ3/q1kb1Qb1/n2b3n/n1Bp1r2/1p3B2/RQRK1B1B/r1nnq3 w - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 Nh3 e4 Nf2 a6 Ng4 axb5 Nd2 hxg4 Nf3 exf3 Ba3 b4 Bb2 Qa5 Bc1 Qd8 a4 d5 h4 Kd7 c4 b5 e4 f5 h5 d3 h6 d2+ Kf2 b3 h7 b2 a5 b1N c5 g3+ Kg1 g2 Kf2 b4 g6 b3 a6 Bb7 a7 Nc6 e5 Qf6 g7 Bd6 Bb5 g1B+ Kf1 f2 Ke2 f1B+ Kf3 Bd3 Rh2 Nc3 Ra2 Na4 Qc2 d1N Bc4 Na5 e6+ Kc6 e7 Bd4 Qb2 Bc2 Ke2 f3+ Kd2 f2 e8R f1Q Rd8 f4 Rd7 f3 Re2 Rf8 a8B Bg6 Rg2 f2 Rh2 Ne7 g8Q Nf5 Qe6 Ng7 Qe7 Nh5 Rg2 Rhg8 h8B B4e5 Bg7 d4 Bh6 Qe6 Bf4 Bh8 Bh2 Qe5 Rg3 Rf5 Rc3 Rf4 Rc2 Qe6 Qf6 Rf8 Qe7 R8f5 Qf6 Qfe1+ Kd3 Qe7 Qh4 Qf1+ Kd2 Re5 Bd5+ Kb5 Be6 Qe8 c6 Re1 Qf6 Ndc3 Bf7 Kc5 Bd5 Qa6 Bc4 Ree4 Kd3 f1N Bd2 Ne2 Be1 Ne3 Kd2 Rf1 Bf2 Rf4 c7 Qe5 Re7 Ra1 Rh7 Nc1 c8Q+ Bc7 Rg7 Nd1 Qce6 Bd6 Rd7 Bh1 Bg2 Qe4 Qee7 Kc6 Bgf1 Qe5 Bfe2 Bd5 Bf3 Qe1+
1rb1Q3/QBbp1n2/1Nb3qq/r4Q2/n2BQ1rp/5N2/K1q1q1kr/1B4N1 w - - 0 1 illegal: No possible last move, all moves rejected
2bnq2K/r1p3pQ/2r1Rn2/2rp2N1/3Q2NN/1q5Q/qb2N1RR/b1n2k2 w - - 0 1 legal: proof: c4 a5 g4 h5 e4 hxg4 b4 axb4 d4 f5 e5 d6 Bd3 Kd7 Be4 fxe4 c5 Ke6 d5+ Kf7 Bg5 dxc5 d6 c4 d7 Ke6 Be3 Kf7 Bc5 Ke6 Bd6 exd6 Nh3 Kf7 Ng1 Ke7 Ke2 Ke6 Ke3 Kf5 a4 b5 h4 g3 f4 d5 h5 g2 h6 c3 h7 b3 e6 b4 a5 b2 a6 c2 e7 c1N e8N b3 a7 Bc5+ Qd4 Kg4 f5 Bb4 f6 Kg3 f7 Ne2 f8Q Bc3 Ra6 Nc6 Nf3 g1R Qf5 Kg2 Nf6 Rc1 Rh2+ Kf1 Ra2 Qe8 d8N Rc2 Nf7 Nc1 Kf4 Nd8 Kg5 e3 Kg6 e2 Qfg4 e1B Nh4 Bed2 Qg3 Be1 Ng4 Bed2 Qa4 Bd4 Nc3 b1Q Qb4 b2 Qh3+ Ke1 Qc4 Bf4 Ra6 Bfe5 Rf6 Qa1 Rff2 b1Q Ne2 Qa3 Rfg2 Ba1 Qe4 Qe3 Qa4 Beb2 Qd4 Q8e5 Ng5 Qa2 Qd2+ Kf1 Qd4 Rb8 a8R Qeb3 Ra6 Ra8 Rd6 Rc5 Rc6 Ra7 Rb6 Nf6 Rd6 Re8 h8Q Nh5 Kh7 Re6 Kg8 Qe4 Qh7 Nf6+ Kh8 Qg6 Rd7 Rd6 Re7 Rdc6 Re6 Qe8+
1b1b1BQ1/1QN3N1/b4q1N/1K2Q2b/4bpn1/BB1p3B/pn3q2/b1r1kr2 w - - 0 1 illegal: No possible last move
2Nq4/4b3/4n3/Qb1KR3/Nrpp1Q1p/Nkp5/Rbq1Qn2/1R1qrNr1 w - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 axb4 Be3 d5 Bd3 dxc4 d5 e5 Bd4 exd4 e5 Nh6 Bc2 Ng8 Be4 fxe4 Ke2 Kf7 a4 c5 f4 b5 g4 h5 a5 e3 Kf3 c3 Ke4 h3 g5 b3 f5 b2 a6 h2 d6 h4 a7 e2 f6 Ke6 d7 e1B f7 b4 g6 Nc6 g7 Ba6 Ra4 Nh6 g8N Rb8 a8N Ng4 Qd2 Bb5 Nb6 Be7 Na3 b1R f8Q Nf2+ Kf4 b3 Nf3 b2 Qe2 c4 Rf1 h1Q Nd2 Ra1 Ra8 b1Q Na4 Kd5 e6 Qc2 Rg1 Rh6 Nf1 Rg6 Qh6 Rg2 Kf3 Rd1 Qf4 Bd2 Ra6 Bc1 Ra8 Bd6 e7 Bb2 e8R Re1 Re4 Be7 Re5+ Kd6 Ra7 Qf8 Ra5 Nd8 Ra7 Ne6 d8Q+ Kc6 Qa5 Qd8 Ra8 Ba6 Ra7 Rb4 Ra8 Bb5 Ra7 Bf8 Ne7+ Kd6 Nc8+ Kc6 Qd3 Be7 Qdd2 Qh2 Qe2 Qd1 Rh1 Rg1 Ra8 Nd3 Ke4 Qf2 Qee3 Qfc2 Qe2 Nf2+ Kf3 Ba6 Nh2 Rb6 Qb4 Rg4 Nb1 Rf1 Nc5 Qdd2 Qa3 Kb5 Qa2 Nd3+ Ke4 Kb4 Qa1 Rc1 Re1 Rg1 Nf1 Qe8 Kd5 Nf2 Nd7 Rb7 Ndb6 Kb3 Ra7 Bb5 Ra8 Bd7 Qa7 Rb8 Qc7 Rd1 Ra2 Qd8 Na4 Rb4 Na3 Rb1 Rd1 Qdd3 Qa5 Rc1 Rd2 Re1 Rd1 Qdd2 Rda1 Qdd1 Rb1 Bb5+
1q2k3/b4p1B/1r4BQ/K1r1n1p1/3Q1Qb1/p1pr2Bq/q1R2BR1/4n1nR w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 dxc4 g5 b5 Ra2 bxa4 Ra1 h6 Nc3 f3 Ne4 Ba6 Ng3 Bc8 Nf5 g6 Nh3 gxf5 g6 f4 Ng5 hxg5 b4 a5 d4 c5 Kd2 f2 Kc3 a3 h4 a2 e4 f3 h5 a4 g7 a3 h6 Bd7 d5 Ra4 e5 Bg4 h7 Na6 e6 Ne7 b5 Nc6 e7 Nab4 d6 Ra5 b6 Qb8 b7 Ne5 Be3 Nc2 Qd4 Ne1 Bd3 f1R Qf4 f2 Rc1 Ra6 Bc2 Rb6 Bg6 Rg1 Rc2 f1Q Bf2 a1Q+ Rb2 Rg8 h8Q Qa2 Qh6 Rh8 g8B Qh3+ Qf3 Rg3 B8h7 N1d3 Qf4 Ne1+ Kd2 Rf3 Rc2 c3+ Kc1 Kd7 e8R c4 Re7+ Kd8 d7 Rd3 Re6 Bc5 Re8+ Kc7 d8Q+ Kc6 Qdf6+ Kd7 Re6 Rc8 Qh8 Nc6 Ree2 Ne5 Q8g7 Ke8 Qgf6 Qa8 b8B Be3+ Red2 Rc5 Bc7 Qb8 Qd4 Nc6 Bcg3 Ne5 Qff4 Bc8 Rb2 Bf5 Kd1 c2+ Ke2 c1N+ Kd1 N1f3 Kc2 Ng1 Re2 Bd7 Rd2 Bg4 Re2 Rd1 Kc3 Ncd3 Rec2 Ne1 Rb5 Ne2+ Kb4 c3 Ka4 Ng1 Rbb2 Rcc6 Ka5 Rd3 Bf5 Rc4 Bfg6 Rc5+ Rb5 Re6 Re2 Rd2 Qd3 Ngf3 Bg1 Rc8 Rb2 Ba7 Rc2 Rb6 Qdd4 Rd3 Rg2 Rc7 Be3 Ng1 Bef2 Rc5+
2kr1R1Q/b6n/p5n1/3RBKB1/1q1B4/nRq1B1b1/1rr1q1q1/2BB1b1n w - - 0 1 legal: proof: g4 d5 e4 b5 f4 f5 c4 fxe4 a4 dxc4 f5 bxa4 Nc3 g5 Nd5 h6 Nf4 gxf4 Nf3 h5 g5 Nc6 Ne5 Nb8 Ng4 hxg4 Kf2 Kd7 d4 c5 b4 e5 h4 c3 h5 a6 g6 c4 f6 g3+ Kg2 f3+ Kh3 c2 Kg4 g2 d5 g1Q+ Kf5 c3 d6 a3 f7 f2 h6 a2 h7 e3 b5 e2 g7 e1B b6 e4 b7 e3 Qd3 e2 Kf4 Qe7 Rh5 Nc6 b8B Nf6 g8R Qg2 Rh4 Ne5 Qg3 Ng6+ Kf5 Bh6 f8B Be3 Bh6 Ba7 Ba3 c1R Qg4 c2 Bc7 Rb8 Qe4 Rb2 Rb1 a1N Rh1 Bb7 Rc8 Rd8 h8B Nh7 Be3 Bc6 Be5 Bb5 Bcb6 Qh4 Qd3 Qb4 Bbd4 Bc4 Rc5 Bb5 Rd5 Kc8 d7+ Kb7 Bb6 Ra2 Bec7 Bc4 Rb3 Rb1 Rh3 c1Q Qd4 Qcc3 Rf3 Nc2 Bac1 Na3 Ke4 Rc2 Qh8 Rbb2 Bg3 Qg1 Bh3 f1N Be5 Qg2 Bg4 Bf2 Bbd4 e1Q Kf5 Ng3+ Ke6 Qd1 Rf8 Nh1 Kf5 Bf1 Bf3 Qdd2 Be2 Bg3 Bd1 Rb8 d8B Qde2 Be7 Rd8 B7g5 Kc8
3Rb3/N3Rq2/1N2R1q1/n4rNk/pNBq1b2/4bq2/p1q1rnnN/3N3K w - - 0 1 legal: proof: g4 c5 a4 e5 d4 cxd4 f4 exf4 g5 b5 Kf2 bxa4 Ra3 h6 Ra1 f3 Qd3 g6 Qf5 gxf5 g6 Qe7 Bf4 Qd8 Bg5 hxg5 Ke1 f4 Kf2 d5 b4 a5 e4 f5 h4 d3 c4 g4 e5 d4 c5 d2 e6 d1N+ Ke1 d3 h5 a3 g7 a4 e7 Kf7 e8N f2+ Kd2 f3 b5 a2 c6 g3 h6 Kg6 h7 f4 c7 g2 b6 Ne3 b7 Qd4 Rh5 Nh6 g8N Nhg4 Rh2 Nc6 b8N Na5 Nh3 g1B Nc6 Bh6 Rg2 Bd7 c8N Kh5 Nc7 Be8 Nd5 Ra7 Ncb6 Re7 Be2 f1Q Nbc3 f2 Na7 f3 Nd1 Bf4 Nh6 Rf8 h8R Rf5 Nb4 Re4 Rg3 Qg2 Ng5 f1Q Rf8 Nf2 Ng4 Re7 Nh2 Ree5 Rg4 Qg3 Rf6 Qfh3 Ke1 Ng2+ Kf1 d2 Bc4 Re6 Nc3 Re2 Re1 d1Q Re6 Qc2 Nd1 Bd2 Nh7 Bf4 Rg8 Qg6 Ng5 Qg3 Re7 Qf7 Ne6 Qgg6 Ng5 Ng4 Rf8 Bge3 Rg8 Nf2 Kg1 Nd3+ Kh1 f2 Rg1 f1Q Re6 Bb5 Rd8 Qf3 Re1 Be8 Red6 Rf2 Kg1 Bd2 Re7 Bde3 Kh1 Re2 Rde6 Nf2+
KN1bB2b/1p5R/1bNNrk2/6rR/1p2qn2/RNb2b1N/3q1r2/1Nq1n3 w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Qg4 e4 Qf3 Nf6 Qd1 Ng8 g4 h6 Bf4 Ra7 Qd2 Ra4 Qg2 gxf4 g5 Ra3 g6 Ra8 Qg5 hxg5 Kf2 e5 c4 Ke7 h4 d5 a4 e3+ Kf3 g4+ Ke2 d3+ Ke1 f3 a5 d4 h5 e4 g7 e2 Kd2 e1B+ Kd1 e3 a6 f2 h6 g3 a7 d2 Ke2 g2 Kf3 d1Q+ Ke4 d3 c5 d2 c6 e2 h7 Qd3+ Ke5 Na6 c7 Nc5 Nh3 g1B Ra3 Nf6 g8N+ Kf7 Ne7 Nh5 f6 Bg4 c8N Rg8 h8R Bg7 Rh7 Qe4+ Kd6 Qc1 Kc7 d1Q Bg2 f1R Nc6 Bf3 Nd6+ Ke6 f7 Bh8 f8N+ Kf6 Rh2 Bh4 Ne6 e1B Ned4 Nd3 Nb3 Rae8 a8N Qdd2 Nb6 Rf2 Bh1 Nhf4 Nd7+ Kg6 Rh5 Re6 Nb8 Kf6 Kb6 Rg5 Ka7 Qdc2 Ka8 Bc3 Bg2 Ne1 Bf1 Q2d2 Bd3 Qe5 Bg6 Qe4 Rh1 Rh2 Bf7 Bb6 Be8 Rf2 Rg1 Rge5 Rg7 Rg5 Rgh7 Rd5 Bd7 Kg6 Na7 Bhd8 Nac6 Kf6 Be8 Rg5
R6N/rq4pR/N1n3N1/p1rrR2n/1N1n1n2/1K2nn2/Q1N1kq2/3N2bb w - - 0 1 legal: proof: g4 f5 a4 e5 d4 exd4 e4 c5 e5 b5 g5 d3 g6 bxa4 Be3 d2+ Ke2 hxg6 Bd4 cxd4 Bg2 g5 Be4 fxe4 Kf1 g4 Ke2 Kf7 b4 Kg6 h4 Kh5 c4 d5 f4 a5 e6 d3+ Ke3 a3 Kd4 a2 Kc3 d4+ Kb2 e3 f5 e2 f6 e1N f7 Qc7 b5 Ra7 e7 Qb7 e8N Ng2 c5 Nc6 b6 Nf4 Qe1 d1Q Nf3 g3 Qe6 d2 Nc3 d3 Nd4 g2 Nc7 g1N Na6 Qf3 Re1 a1N Nb4 d1R Ndc2 d2 Qa2 Kg4 h5 Nb3 h6 Qf2 h7 Kf3 Re5 Nf6 Rhh5 Rg8 h8N Nbd4 Rh7 N6h5 Ka3 Bd6 f8N Be6 Nfg6 Bd5 Ka4 Rc1 Nd1 Rd8 Ka3 Be4 Kb2 Ke2 Kc3 Ngf3 Kc4 Ne7 c6 Bc5 c7 Nec6 c8R Rd5 Ra8 Nd8 Kc3 N8c6 Ne3 d1N+ Kc4 Qc7 b7 Bb6 b8N Qb7 N8a6 Bc5 Ng4 Ne3+ Kc3 Nd2 Kb2 Bh1 Ka3 N2f3 Kb2 Qg1 Nf2 Bb6 Nd1 Qf2 Na1 Rcc5 Nac2 Bd8 Ka3 Bh4 Kb2 Bg3 Ka3 Bh2 Kb2 Bg1 Ka3 Nb5+ Kb3 Nbd4+
2NK2N1/3p4/N1R1N2p/B2b1Bb1/nBrNnb2/3qq3/2r2brk/bNb5 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 e5 h5 e6 fxe6 Nd2 e5 Nb1 e4 b4 Nh6 h4 Ng8 g5 Kf7 Qg4 hxg4 h5 Qe8 h6 Qd8 h7 Ke8 Ra3 Nc6 Rah3 Nb8 Rh6 gxh6 Kd2 Kf7 c4 Kg6 f4 Kf5 c5 e5 c6 a5 c7 g3 b5 Kg4 g6 a3 f5 g2 b6 Kg3 b7 e3+ Kd3 e2 Kc4 e1B Kb5 e4 Kb6 a4 g7 e3 f6 d3 f7 d2 Be2 d1Q Nc3 a2 Bf3 a1B Bc6 a3 Rh4 a2 Nd5 e2 Nf3 g1R Nb4 Qd3 Rh2 Ra4 Be4 Qe7 Bd2 Be5 Bc3 a1B Nc2 Nf6 g8N Rg2 Bf5 Bd2 Ncd4 e1B Ba5 Bf2 Rh4 Bc1 Nd2 Na6 b8N Bb7 c8N Bd5 Nb1 Nc5 Na6 Bef4 Rg4+ Kh2 Rg6 Bg5 Kc7 Qee3 Kd8 Bd6 f8N Rc4 Nfe6 Bdf4 Bb4 Ne8+ Nge7 Rg8 h8B Na4 Bf6 Rg7 Ng8 Re7 Be5 Nf6 Bc7 Rf7 Bca5 Re7 Nf8 Re4 Nfe6 Rc2 Nc6 Rec4 Ncd4 B4g3 Ke7 Bb8 Kd8 Bbf4 Nf8 Nh7+ Be7 Nb2 Rc6 Nf6 Beb4 Na4 Nfe6 Ne4+
brRr3k/q1Qq3r/3nn3/2R5/N1pK1b1Q/3QQ3/q1q1R1q1/5BnR w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 h4 gxh4 b4 a5 b6 a4 Nc3 a3 Na4 Rxa4 b5 Ra8 Bb2 Bc5 Bg7 Bb4 Bf8 Bxf8 Kf2 f5 e4 Kf7 g4 Kg7 d4 c5 e5 h5 d5 h3 d6 f3 Ke3 h4 d7 c3 b7 a2 g5 f2 e6 c2 g6 c1N b6 c4 e7 f4+ Kd4 f3 e8R h2 Qe2 h3 Kc3 Na6 b8R Nh6 b7 Bd6 Qc2 Nc5 Qd1 Ne2+ Kc2 Nf7 Rf8 Ne6 Qb1 Bf4 Kb2 Nd6 Bg2 f1Q Rf5 f2 Qd3 Qd1 Rc5 f1Q Qe3 Qe8 d8Q Qd7 Qh4 Qf2 Bf1 Rd8 Qd3 Q1a4 Re1 Qa7 Kc2 Kg8 g7 a1Q Qe3 Nc1+ Ne2 Q1a2+ Kc3 Qg2 Rg1 h1Q Qd3 Qhh2 Rh1 Qf2 Qe3 Qhg2 Qd3 h2 Qe3 Nf8 Kd4 Qc2 Nc3 Qfe2 Rg1 h1R Na4 Qa2 Qd3 Qec2 Re2 Rh2 Rh1 Rh3 Qe1 Rh7 Qe3 Nd3 Qh4 Nf2 Qd3 Nh3 Qe3 Ng1 Qd3 Qdg4 Qe3 Bd7 Rc8 Bc6 b8Q Qgd7 Qb7 Rb8 Qc7 Ba8 Qd3 Ng6 Qe3 Nh8 Qd3 Nhf7 Qe3 Ng5 Qd3 Kf7 g8Q+ Kf6 Qe6+ Kg7 Qeh3 Kh8 Qhe3 Ne6+
1B5b/Bp1qBb2/4nrr1/1Qn3NK/1r1B1q1b/1r1qn1Q1/Bn3B2/2k3N1 w - - 0 1 illegal: Other
1Bq1kB1q/1Rqr1r1n/q1b1nb1b/1n6/5pQ1/Bb3B1R/4K3/BQB3n1 w - - 0 1 illegal: No possible last move, all moves rejected
3BB3/q4B1n/N2b1rbq/b2R1Nkp/N2n2N1/7r/2b1BBn1/4rrnK w - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 h5 e5 h6 exf4 Qd3 g6 g4 Ra4 g5 Qc7 Qb5 Ra6 a4 Ra8 Ra3 Qa5 Rah3 Qd8 Rh5 Ra5 Qf5 gxh5 g6 Ra7 g7 Ra8 Qg6 hxg6 Kf2 Ke7 Kg2 Kf6 e4 b5 c4 d5 a5 g5 a6 f3+ Kh2 b3 c5 g4 a7 b2 h7 b4 c6 b3 c7 d3 Na3 b1Q Be3 f2 Nb5 d2 Bc4 f1R Nd6 d1B Bc1 g3+ Kg2 b2 Ne2 d4 Rh4 d3 Nc3 d2 e5+ Kg5 e6 f5 e7 f4 e8B Qa1 Rh2 b1R Beb5 Qf6 Ba6 Bc2 Ncb5 d1N Bb2 Nc6 Na3 Qh6 Rh3 Nf6 g8B B8f5 c8N Nc3 Bcf7 Bg6 Be2 Nd4 Nf5 Bd6 Nb6 Rbe1 Be8 Rc8 Ba2 Rf8 h8B Nh7 a8N Rf6 Nc7 Ra8 Nac4 Ra3 Rh1 Rb3 Rg1 f3+ Kh1 f2 Na4 Ra3 Ne5 g2+ Kh2 Rb3 Na6 Ra3 Rh1 g1B+ Kg2 Bh2 Ng4 Bhf4 Baf7 Bd2 Rg1 Qa2 Kh1 Rb3 Bd3 Nce2 Bc3 Qa3 Ba5 Bc3 Bd8 Ba5 Bg7 Qc5 Bf8 Qa7 Bdc4 Bf4 Bc5 Bd6 Kg2 Rf3 Rh1 Ng1 Be2 Rh3 Rh2 Rd1 Kh1 Rfe1 Bcb6 f1N Bc5 Ne3 Bcb6 Nc6 Bd4 Ng2 Bf2 Rhd3 Rh3 Nd4 Re3 Rf1 Re5 Rde1 Rd5 Rh3+
2n1k3/R2n3B/3B1n1K/1b3Q2/7n/p1r1b1p1/qQ1rBnr1/Rn1BB1Bn w - - 0 1 legal: proof: g4 g5 a4 h5 d4 c5 f4 cxd4 a5 gxf4 g5 e5 Na3 e4 Nf3 exf3 Nc4 b6 Ne5 bxa5 Ng4 hxg4 Qd2 a4 Qd3 Ke7 Qd1 Ke8 Kd2 f5 e4 d5 c4 a5 b4 d3 h4 f2 c5 d4 b5 f3 b6 a3 b7 a2 g6 a4 c6 g3 e5 f4 e6 a3 e7 Qd5 c7 Nd7 b8B Ngf6 g7 Ba6 c8B Bb5 g8B Bh6 Bg2 f1N+ Ke1 Nd2 h5 Nc4 Qb3 d2+ Kf1 d1N Rg1 d3 Ba6 f2 Be4 d2 Ke2 f1N Kf3 Nfe3 Rf1 Ncb6 Qb2 Nf5 Bh7 Nf2 Bd6 d1N Be3 Nh1 Bg1 Rc8 Rf2 Bg5 h6 Qg8 Rh2 Ndf2 Bc2 Rc6 Ba4 Nc8 Bd1 Rc2 Rh3 Rd2 Rh2 Nh3 Re2 N3f2 Re4 Qf7 Rc4 Qg8 Rc7 Qe6 Ra7 Qg8 Rc1 a1R Rb1 Ra2 Ra1 Ba4 Bae2 Bb5 Bg6+ Qf7 h7 Rg8 h8B Rg7 Qb4 Rac2 Bh7 Qa2 Qb2 Rg6 Ra6 Rh6 Bg7 Rh2 Ra7 Rg2 Bf8 Nd3 Bb4 Rc3 Ba5 Ne4 Kg4 f3 Kh5 f2 Bb4 f1N Bd6 Nh4 Bb4 Bf6 Kh6 Bd4 Bd6 Ndf2 Bg7 Bb6 Bh8 Rf3 Bc3 Nef6 Ba5 Rd5 Bd2 Rc3 Be1 Nd2 Bg4 Nb1 Bge2 Kf7 Ba4 Rd2 Bad1 N6e4 e8Q+ Kf6 Bf4 Be3 Qg6+ Ke7 Qg5+ Ke8 Bd6 Nef6 Qf4 Bc5 Qf5 Be3+
3nN2N/kbn2N1q/np4r1/B3N1b1/R1n3R1/2pbp2R/NR4pK/1r1b4 w - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 c4 dxc4 f4 g5 Ba3 f5 Bc1 fxe4 f5 Ra7 Bh3 Ra8 Qf3 h5 Qf4 gxf4 g5 Na6 Bg4 hxg4 Kf2 Nb8 Kf1 Rh4 Ke1 Rh8 Kf2 Kd7 Kg2 Kc6 h4 Kb6 a4 c5 d4 e5 a5+ Ka7 h5 e3 f6 b6 g6 c3 g7 c4 a6 g3 d5 c2 d6 b3 f7 b2 d7 f3+ Kh3 g2 h6 c3 h7 f2 Nf3 f1B Ng1 e4 Nf3 e2 Ra4 e1N Rb4 e3 Rd4 Nf6 g8N Bh6 f8R Bg5 Rh2 Qe7 Na3 b1B Rg4 Nc6 d8N Nd3 Nf7 Nc5 N3e5 Ne8 Nf6 Nc7 Ne8 Rg8 h8N Bb7 Kg3 Rd8 Rh3 Bd3 Kh2 Rg6 Bb2 c1N Nc2 Be2 Nb4 N1d3 Na2 Bd1 Ba3 Nb2 Bb4 Nc4 Ba5 Rd2 Rh5 Nd8 Rh3 Ka8 a7 Bd3 Nfd6 Qd7 Rf2 Qh7 Ndf7 Rb2 Re2 Rb1 Rf2 Bbf3 Rb2 Kb7 a8R N5a6 Rb8+ Ka7 Rc8 Nde6 Rd8 Bb7 Rdd4 Nd8 Rdf4 Na3 Ra4 Nc4
1q6/1nb1Q1nr/BQ2n1n1/4nk2/5bbq/BNN1rB2/B2r1N2/2K1qN1r w - - 0 1 legal: proof: g4 a5 a4 c5 d4 cxd4 f4 g5 h4 gxf4 b4 axb4 g5 h5 Rh3 e5 Raa3 e4 Raf3 exf3 Rg3 Ra5 Rg2 Ra8 Rg4 hxg4 Kd2 Ke7 e4 Ke6 c4 b5 h5 d5 a5 f5 g6 b3 c5 b4 c6 d3 a6 f2 e5 g3 a7 d4 g7 g2 h6 f3 h7 f4 c7 b2 Qe2 b3 Na3 b1Q Nh3 g1B Bb2 Nc6 Ba1 b2 Nc2 Bh2 Ng1 Na5 Qe1 Qh4 Nh3 Nb7 Qe2 Bd6 Qe1 Kf5 e6 Ne7 g8Q Ng6 Be2 f1Q e7 f2 e8N f3 Bd1 Bdf4+ Qe3 Qg2 Be2 f1R Qa2 f2 Bh5 Rh1 Be2 f1R Nf2 Re1 Bd1 Be6 Qa6 Rd8 c8B Bc7 a8B Bhf4 Qd6 Qgh2 Na3 Qa2 Qb4 b1N+ Kc1 Nd2 Nb1 Nf3 Qb5+ Nfe5 Nf6 Qe2 Nc3 Bd7 Nh5 d2+ Kb1 d3 Qbb6 Be6 Bb2 Rd6 Bc1 Bd7 Ba4 d1N Bb3 d2 Ba2 Nb2 Qec5 Rd5 Qe7 Nbd3 Kc2 Q2g3 Ba3 Ndc5 Kb2 d1N+ Kb1 Nd6 Ba6 Rd2 Kc1 Ne6 Bc6 Nb7 Bf3 Rf8 h8N Rf7 Qd8 Bc8 Qe7 Rh7 Nf7 Qgh2 Nd8 Ne3+ Ncd1 Nc2 Nc6 Ncd4 Na5 Ng7 Nb3 Nde6 Na5 Qb5 Nb3 Re3 Qd7 Qe2 Ng3+ Kf6 Nf1 Kf5 Qd8 Qg1 Nh2 Nd6 Qb7 Ng5 Kb1 Ke6 Qb8 Qge1 Nf1 Qb5 Nd3 Qe2 Nc3 Bd7 Qa7 Qb8 Nf2 Nb7 Qe8+ Kf6 Qd4 Bg4 Qe7+ Kf5 Qb6 N5e6 Kc1 Qe1+
rNb1N3/1bq1bn2/r7/qqQ2bN1/1b1Qb1k1/3BBqNr/5Q2/Q4n1K w - - 0 1 illegal: No possible last move
1q6/2kp1pB1/qNpr1B2/5qb1/N2r2Rn/1pK1b2b/1Q1P3R/1BrN4 w - - 0 1 legal: proof: f4 b5 e4 e5 h4 a5 a4 g5 b4 gxh4 c4 bxc4 f5 c3 f6 Na6 Bb5 Nc5 Bd3 Nxe4 Bf1 Nexf6 Qg4 e4 Qd1 e3 Qb3 Ne4 Qc2 Nd6 Qd1 Nb5 axb5 axb4 g4 h5 b6 e2 g5 c6 b7 c2 b8B h3 g6 h4 g7 h2 Ra4 h3 Ra7 Nh6 g8N Ba6 Bg3 Qb8 Bf4 Kd8 Nc3 Be7 Nf6 Nf5 Bh6 Nh4 Bg7 Rh6 Nfd5 Rd6 Bb2 Bg5 Nb6 Bc4 Ra2 Be6 Nca4 Kc7 Bbf6 Ra6 Kf2 e1B+ Ke2 Bf2 Qa1 Bfe3 Qb2 Ra5 Bg2 Rad5 Bf3 Rd3 Bd5 Rd4 Ra3 Bf5 Ba2 b3 Bb1 Bg4+ Nf3 Be6 Ne5 Bf5 Nec4 Be6 Rf1 h1Q Rf2 Qd5 Rh2 Qf5 Ra2 Bf2 Ne3 Bg1 Rg2 h2 Nd1 h1Q Rh2 B1e3 Ra1 Qhe4 Ra3 Qa5 Ra1 Bh3 Ra3 Qef5 Ra2 Re4 Ra3 Rde6 Kd3 Qa6+ Kc3 Rd6 Nc5 Bgf4 Ra4 Red4 Rb4 Bg5 Nca4 R4d5 Rf4 Rd4 Rg4 c1R+
3B4/2NK2Q1/2B1n2p/1p3rN1/1kqPp1b1/rpp2Rp1/n1p4R/4RBb1 w - - 0 1 legal: proof: g4 a5 b4 axb4 h4 f5 c4 fxg4 e4 d5 f4 dxc4 e5 b5 f5 g3 e6 Ra6 h5 Rxe6+ Qe2 Rh6 Qd1 g5 hxg6 Rh2 g7 Nh6 g8R Nxg8 a4 Kd7 d3 Kc6 a5 Kc5 f6 e5 a6 h6 a7 c3 a8B c2 f7 e4 Bg5 b3 Nf3 Na6 Bc6 Nf6 Nc3 Rf2 Rh2 Nb4 Nd5 Nd7 Rb1 Bg7 f8R Na2 Bf6 Qe7 Ng5 Rf5 Ke2 Qe6 Bd8 Bd4 Rf7 Bg1 d4+ Kc4 Qd2 Rf8 Re1 Nc5 Qf4 Rg8 Qe5 Rg6 Qg7 Bd7 Nb6+ Kb4 Na8 Qc4+ Kd2 Ne6 Rf6 Rf2+ Ke3 Bc8 Rf3 Bd7 Bb7 c5 Bc6 Rf6 Nc7 Rf8 Bf6 Ra8 Be7 Ra3 Bd8 Nf8 Kf4 Bg4 Ke5 Ne6 Rd3 Rf5+ Kd6 Qd5+ Ke7 c4 Rf3 c3 Ke8 Qc5 Kd7 Qc4
1RKb1b1k/R3q1r1/2BB2n1/1brqR3/1q5b/1qPN2n1/N4Q2/2Bq1b1n w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 g5 e4 f5 h4 Kf7 c3 Kg7 h5 b5 e5 d5 e6 b4 e7 g3+ Kf3 b3 e8R d3 Bg2 a2 Re4 b2 Re3 d2 Na3 b1Q Rh3 g4+ Ke2 d4 Qe1 d1Q+ Kf1 f3 Rh4 f2 Rf3 d3 Bh1 d2 Kg2 f1N Qf2 f4 Qd4+ Nf6 Qe4 Qbb3 Nc2 Ba6 Nh3 Rh7 h6+ Kh8 Qc6 Nbd7 Rb1 a1Q Rh5 Rc8 Rf5 Ne4 Bb2 Bb5 Re5 Qaa5 Qf6+ Rg7 h7 Qab4 Qc6 Nf2 Qf6 Rc5 Bc1 Qe7 Ra1 Qd5 Ra7 Qdb3 Ne1 Qd5 Nd3 Q1b3 Ng1 d1Q Qf7 Q4a3 Ne2 Qab4 Rh5 Ne5 Rg5 Ng6 Re5 Qdd8 Rfe3 Qdd5+ R3e4 Qed6 Re8 Qe7 Rb8 Qdc4 Re5 f3+ Kg1 g2 Qf5 Nd2+ Kh2 g1B+ Kg3 Qd5 Bg2 Nf4 Qf6 Nh1+ Kh4 Ng6+ Kg5 g3 Kf5 f2 Qf7 Qa8 Bc6 f1B Qf6 g2 Qh4 Qeb7 Qf2 Bh2 Kf6 g1B Kf5 Bg3 Kf6 Qb1 Kf5 Bh4 Ke6 Ne7 Kd6 Ne4+ Ke6 Neg3 Kd6 Qb6 Kd7 Ng6+ Kc8 Qb1b3 Ba3 Nh5 Nec1 N5g3 Na2 Q6a5 Bc1 Qaa3 Qb2 Be3 Qg2 Beg5 Qf2 Bd8 Ra5 Re7 Ra7 Kg7 h8B+ Kg8 Bf6 Rg7 Be7 Kh8 Rc7 Q8a5 Bd6 Qa8 Bd7 Qad5 Bc6 Qab2 Ra7 Qbe2 Rg5 Qe8 Re5 Qe7
Q2b2q1/n1n2N1P/8/1br1RnnR/BrN1q1K1/2B2Nn1/3rr1bB/2q4k w - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 g4 h5 e4 fxe4 a3 bxa3 Kd2 hxg4 Ke2 Nf6 Ke1 Ng8 f4 Kf7 Ke2 Kg6 c4 Kf5 h4 g5 c5 e5 c6 d5 h5 b5 h6 a2 h7 b4 c7 b3 Kf2 g3+ Kg2 e3 Kf3 b2 Qa4 g4+ Kg2 Ke4 f5 e2 f6 e1Q f7 Nh6 Nh3 Be7 f8B Bb7 c8N Na6 Bd2 Nf5 Be2 Rb8 Bb5 Nc7 Qa8 d3 Ng1 d4 Ba5 d2 Rh3 d1R Be2 d3 Bh6 d2 Qa6 Qg8 Qd6 Bd8 Na3 b1N Bg5 Nc3 Rh6 N3b5 Qa6 Na7 Rc1 a1Q Rc3 Qc1 Kh1 g2+ Kh2 g3+ Kh3 Bd5 Re6 Rb4 Nf3 g1N+ Kg4 g2 Rc2 Nh3 Nb1 g1N Bf1 Ne2 Qb7 Neg3 Rg6 Bc6 Qb6 Bb5 Bh6 Ng5 Qc6+ Ke3+ Rc4 Kf2 Qa8 e4 Na3 e3 Re6 e2 Bg2 Qh1 Re5 e1R Nd6 Re2 Nf7 Qe1 Rd4 Qh1 Nc4 Qe1 Nh4 Kg1 Bc6 Kh2 Rf4 Qh1 Bg7 Qe4 Nf3+ Kh1 Bd7 Rg1 Bf8 d1B Bd6 Bc2 Bc6 Rd1 Bd7 Rdd2 Be8 Rb2 Bc3 Rb4 Bd7 Qe3 Rd4 Be4 Rdd5 Qd3 Nh2 Bg2 Nf3 Ba6 Ba4 Bb5 Re6 Qe4+ Bf4 Qg6 Rde5 Re8 Rb6 Qg8 Rh6+ Nh4 Rh5 Re6 Qb8 Rc6 Qa8 Rc5 Rf5 Nf1 Rd5 Qe5 Bh2 Ng3 Qc6 Qe3 Qa8 Nhf5 Re5 Qe4+
rNb1K2q/q1q1b3/R3Q2q/3bqrk1/1nr3q1/2RBN2R/7P/B1nr3N w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 Ke7 e4 Kf6 c4 d5 e5+ Kg5 e6 b5 e7 f5 e8N b4 c5 g3+ Kf3 d3 c6 b3 c7 g2 Ne2 g1Q Bd2 b2 Nc1 a2 Qa4 d4 Ne2 Ne7 Qb3 Na6 Qc3 Qg4+ Kf2 Nd5 Nf6 Nc5 Bc1 d2 Nh5 d1R Rg1 d3 Qc4 d2 Nf6 f3 Ne8 f4 Qb5 Be7 Qa4 Nb4 Nd6 Nb3 Rg2 Rh4 Nc4 Qh8 Nba3 b1B Qe8 Be4 Bb2 Nc1 Ng3 Bd5 Nb5 Qgh5 Bd4 Q5h6 Ne3 g6 Bd3 Qe5 Rb1 a1Q Rb3 Qeh8 Bg7 Qe5 Nd4 Rg4 Rg1 Rh4 Nh1+ Rg4 Re1 Rh4 Kf1 f2 Nc6 Rg4 Nb8 Rh4 Be4 Rg4 Qc6 Rh4 Kg2 f1R Qe6 Rf2+ Kg1 f3 Bd3 Rc4 Ra3 Rg2+ Kf1 f2 Ra4 Rg3 Ra6 Rf3 Kg2 Rff4+ Kg3 f1Q Re2 Qe1+ Rf2 Qe2 Rf1 Rf5+ Rf4 Qd6 Ba1 Qd7 Rh4 Qdd8 Ng4 Qee5+ Kh3 Bcb7 c8R Qdc7 Rd8 Bc8 Ne3 Re1 Rdd6 d1Q Ra3 Qa4 Rc3 Rd1 Rc6 Qaa7 Rh5+ Kf4 Ra6 g5 Qg8 Bc5 Qe6 g4+ Kh4 g3 Nc6 g2 Nb8 Q6g7 Rh7 g1Q Rh5 Rf6 Rh6 Be7 Rh7 Qed6 Kh5 Q1g3 Rh6 Rf8 Rh7 Qge5+ Kh6 Qf3 Kg6 Rf5 Rh6 Rh5 Kf7 Kg5+ Rf6 Qg4 Rf3 Qh6 Rh3 Qeg7+ Ke8 Qde5 Qf7 Qgh8+ Qg8+ Kf4 Rb3 Rf5 Rc3 Q8g7 Qf7 Kg5 Qe6 Qgh8+
1r4B1/1nR1Nr2/r3nNrq/4QqrR/n3qP2/4BBrq/2b2K2/Nk2b3 w - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 f4 Kf7 c4 Ke6 g4 d5 g5 Kf5 c5 e5 c6 b5 c7 h5 g6 h3 g7 b4 Qd3 h2 Qb3 h4 Nc3 h3 Qa2 b3 Bb5 d3 Qe2 d2+ Kf2 d1R Qe3 b2 Ra2 b1Q Rd2 d4 Qg3 d3 Ra2 d2 Ke3 Ra6 Be2 Qdd3+ Kf2 e3+ Kf3 Nf6 g8B Nbd7 Qf2 e4+ Kg3 Nh5+ Kh4 Rg6 Qf3 Ng7+ Bh7 Bb4 Bf1 e2 Qf2 e1R Nd5 e3 Rb2 Ke4 Nf3 a2 Rc2 a1R Qg2 e2 Qg1 Ne6 Qg3 Ndc5 Ba3 Nb7 Bb2 Ra6 Bg2 Rg1 Ne3 e1R Ng4 Re3 Bd4 Qc4 Rb2 Kd3 Rb3+ Kc2 Bb2 Qe4 Qf2 Rf8 Kg3 Rf7 Bd4 Rde1 Qf1 d1N Bb6 Nc3 Kf2 Na4 Nd2 Rg3 Bf3 Re3 Ra3 Rb3 Nf6 R3g5 Bc5 R1g3 Qe2 Kb2 Rc1 h1Q Be3 h2 Bg8 Qf5 Qb5 Qbe4 Qe5+ Bc3 Raa1 Bd7 c8N Bb5 Bd1 Bd3 Bf3 Bc2 Ne7 Rbb6 Rab1+ Ka2 Rb5 Qg2+ Ke1 Qgh3 Kf2 h1Q Nb3 Qh6 Rc5 Q1h3 Na1 Kb2 Rh1 Rb5 Rh2 Kb1 Rc7 Be1+ Ke2 Na5 Nc8 Q3h5 Ne7 Rb8 Rh3 Qhg4 Rh5 Nb7 Kf1 Qh3+ Ke2 Bc3 Kf2 Be1+
1b4b1/3rr1rk/2rbNr1B/PRrBB2N/2b2Qn1/1n6/3R1q2/N2Kq2n w - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 g4 h5 b5 hxg4 b6 axb6 c5 bxc5 Ba3 c4 Bc1 c3 e4 g5 h4 f5 a4 Kf7 a5 Kg7 e5 b5 h5 d5 e6 c2 e7 b4 e8N+ Kh7 h6 g3 Ba3 c1R Nc7 g2 Bd3 g4 Bf1 g3 Ne2 g1B Ne8 b3 Bc5 f3 Nc7 b2 Ra4 f4 Rc4 f2+ Kd2 f3 Ra4 d3 Ra2 g2 Ra4 d4 Nd5 Bh2 Ndf4 g1R Nd5 Nd7 Qe1 Bfd6 Na3 b1Q Nc4 Ngf6 Ba3 Re8 Bg2 f1B Ne5 f2 Nb4 Rc5 Bd5 Re7 Nc2 Ra6 Bf7 Rg7 Ng3 Qf8 Bb3 Ng4 Rg1 Rac6 Na1 Ba6 Rg2 Bc4 Ba2 Bg8 Bc1 Qf7 Kd1 d2 Nh5 Bc4 Nd3 f1R Ra3 Qf2 Ndf4 Bb8 Ne6 Bhd6 Rb3 Qe4 Rb1 Qe5 Kc2 d1R+ Qd2 Qee1 Rb5 d3+ Kb1 Qd4 Qf4 d2 Kc2 Qdf2 Rh2 Rd5 Bb3 Nc5 Ba2 Nb3 Rg2 Kg6 h7 Rdc5 h8B Kh7 Rh2 Rgg5 Bhb2 Rgg7 Be5 Qfe2 Qg5 Rf6 Qf4 Q2f2 Ba3 Rb1 Bc1 d1N+ Bd2 Qf3 Re2 Ndf2 Bc1 Nh1 Rh2 Qee3 Rd2 Qff2 Kd1 Rb2 Bb1+ Qe4 Bd3 Ra2 Bf1 Rc2 Bg2 Rc3 Bf3 Rd3 Bg2 Qee3 Bd5 Qee1+ Kc2 Qd4 Rh2 Qee3 Qf1 Re8 Bg2 Qe1 Bh6 Ree7 Qf4 Bdc7 Bf3 Qde3 Rd2 Rdd7 Bd5 Q1f2 Kd1 Bd6 Qh2 Qe4 Qf4 Qee1+
1bB1qR1B/1q4b1/1r2r1n1/2Nr1nn1/1q1k1q2/N6K/b1bP3Q/2B1nRN1 w - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 g4 h5 f4 exf4 a3 bxa3 Bh3 hxg4 Bg2 Bc5 Bf1 Bf8 Kf2 Kd7 Kg2 Ke6 e4 Ke5 h4 g5 h5 f5 h6 c5 h7 b5 Nh3 g3 Qa4 a2 Ng1 b4 Ne2 b3 Qa6 g4 Qa5 f3+ Kg1 f2+ Kg2 c3 Qc7+ Bd6 Na3 c4 Rh6 c2 Rh4 f4 Qf7 c3 Rh1 b2 Rh4 b1R Nd4 f3+ Kh1 g2+ Kh2 g1N Qd7 g3+ Kh1 g2+ Kh2 Ra5 Qc7 Bf5 Qd7 Nh3 Ndb5 g1N Qc8 Ng5 Qc7 Nh6 Qd7 Qe8 Bg2 f1Q Qb7 f2 Na7 N1f3+ Kg3 Rb6 Qa8 Kd4+ Rf4 Rd5 Nc4 Nc6 Qd8 Bb8 Qc7 Ne1 Na3 Ne7 Bh3 Ng6 e5+ Be4 e6 Nf5+ Kg4 Rg8 Rb1 a1B e7 Qc4 Rf3 f1B Qh2 Qb4 h8B+ Rg7 Rf2 Bc4 Rf4 Ba2 Nc6+ Kd3 Ne5+ Kd4 Rf2 Rf7 Rf1 Rff6 Rf2 Rfe6 Nf3+ Kc5 Ng1 Bd3+ Rf4 Be4 Bb2 c1Q Rf3 Qc2 Bc1 Qcb3 Rf1 c2 Rf2 Qea4 e8N Bg7 Nf6 Qe8 Nd7+ Kd4 Nc5 Q3a4 Rf1 Qac6 Rb3 Qb7 Rbf3 Qc3 Bb2 c1Q R3f2 Qb1 Bc1 Qc4 Rf3 Bc2 R3f2 Nd6 Rf8 Qbb4 Kg3 Re4 Bc8 Re6 Ne4 Qcc7 Nc5 Nf5+ Kg4 Nh7 Kh3 Qe5 Qe2 Qf4 Qh2 Ng5#
1nrKnrr1/r3Nq1k/n1Pp4/1r6/bRRqr3/Nr1R2b1/Q5B1/1BB5 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kf2 f5 Kf3 Kf7 c4 Kg7 g4 b5 e4 h5 e5 d3 g5 h3 c5 a2 e6 h4 e7 h2 e8B b4 g6 h3 Ne2 d2 Ng3 b3 Bd3 b2 Qe2 d1R Rf1 h1R Rf2 h2 Qf1 Bd6 Bc4 Ra7 Bd3 Re1 Bb5 Re4 Be2 Nf6 Be3 Rg8 Bf7 Ne8 Na3 b1R Ba6 Rb5 Qh3 Rhb1 Rd2 h1R Qh5 R1b3 Qh2 Rc1 Rb1 a1N Bd5 Nc2 Rd3 Nb4 Qa2 Rc2 Bab7 N4a6 Bc1 Kh6 g7 Kh7 Bf7 Qf6 Bh5 Qd4 Bg4 Rcc3 Bh3 Be5 Bg2 d6 Rb2 Bd7 Bc6 Rh8 g8R Rc2 Rg4 Rg8 Nf1 Rc4 Ne3 Rcc3 Nd5 Rc2 Ne7 Rcc3 Bf1 Rc4 Kg2 f3+ Kh3 f2 Kh4 f4 Bg2 f1R Rc2 f3 Rcc3 Ra4 Rc4 Rc7 Bb7 f2 c6 Bf5 Bc8 Bg6 Kg5 Raa5 Be6 Bg3+ Bd5 Bf7+ Kf5 Bh5 Rf4 Bd1 Rb4 Rb2 Rc4 Ba4 Rb4 Rb3 Rg4 Rf4+ Ke6 Rff8 Bdf3 Re1+ Re4 f1Q Bd1 Rbb7 Bc2 Ra7 Bb1 Rb5 Nf5 Nd7 Ke7 Ndb8+ Kd8 Qf3 Ne7 Qf7 Re5 Re3 Rc5 Re4 Rcc4 Rc8+
n1B1n3/3r2rb/n2NN2B/1nb2Rr1/kq2Pq2/4p1B1/4p2R/K1Nnq2Q w - - 0 1 illegal: No proof kernel
B1B2kn1/Brn4b/8/4prN1/n1bR1NpP/q2qQK2/rr1bR3/2r2R2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 Ke2 b5 h4 g5 d4 e5 a4 c5 f4 h5 d5 c2 a5 g3 a6 g4 d6 g2 a7 c4 f5 g3 f6 b4 Rh3 b3 Be3 c1Q Bf2 c3 Qd2 b2 Ke3 c2 Ra4 Be6 Ne2 g1N Nec3 g2 Na2 Ne2 Rh2 g1R Bg2 Na6 Bh1 Nc3 Rg2 Rh7 Nb4 Nc7 Nd3 Bh6+ Nf4 Kf8 f7 Rf1 Rd4 Bc4 d7 Na4 Nc3 b1B Rh2 Rb8 a8B Qa3 Bf3 c1R Bg4 Rb3 Bg1 Rc2 Re2 Ra2 Bf5 Rc1 Kf2 e3+ Kf3 Rb8 Ne4 Rbb2 Ng5 Rg7 Bg4 Bh7 Bf2 Qc8 Qe1 Qa6 Bg1 Qg6 Qf2 Qgd3 d8Q+ Ne8 Qb6 Nc7 Qg6 Rf1 Bc8 Rc1 Rc2 e2+ Qe3 e1R Re2 Red1 Bf2 Rdd2 Qf5 Rb7 Qg4 Rdb2 Be1 Rg6 Ba5 Rf6 Bb6 Ke7 f8R Rf5 Rf6 Ke8 Re6+ Kf8 Ba7 Bg7 Rb6 Bf6 Rbd6 Be7 Rb6 Bb4 Rb5 Bd2 Rb3 Rbc2 Rb1 Rcb2 Ra1 Rc3 Rd1 Rc1 Rf1 hxg4+
B1bqq2N/K1n1n1n1/3Q3P/R1N1br2/2R3qr/1B1p1rr1/2NpB2k/5r2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Kf4 c4 f5 a4 g5 h4 d5 e4 g2 a5 Kg3 a6 f4 e5 d3 e6 f3 c5 d2 a7 d4 c6 b3 e7 f2 e8B d3 c7 b2 Kb6 Na6 h5 Bd6 Bd7 Ne7 Nc3 b1R+ Nb5 Be5 Nh3 g1Q Be2 f1R+ Ka5 Rf3 Nd4 b5 Kb6 b4 Be6 b3 Bg8 b2 Qc2 Rbf1 Qc6 b1Q+ Qb5 Qe1 Qd5 Kg2 Ra5 g3 Bf7 g4 Bd1 Rf8 Bg8 Rf5 h6 Qe4 Qc6 Qge3 Rg1+ Kh2 Nf2 g2 Qd6 g3 Be2 Qg4 Bb3 Qee4 Nc2 Qa4 Rc5 Qae8 Rc4 Rb8+ Ka5 Rb4 a8B Rc1 Re1 g1R Ne4 g2 Nc5 Rgf1 Rd1 g1N Re1 Ra4+ Kb6 Nh3 Ka7 Nf4 Rd1 Ne6 Re1 Bd7 c8N Ng7 Rd1 Rca1 Rb1 Rg3 Rb2 Rac1 Ra2 R1f3 Ra1 Rcf1 Ra3 Nd5 Ne7 Bc8 Ng6 Ne7 Nh8 Rb4 Ra4 Nc7 Ra5 Qg5 Rc3 Rh4 Rc4 Qg4
n7/2n1pp1Q/3q1N1b/2rq4/NrB3BR/q1RrPbKB/3n4/nN1k2n1 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 f4 a5 g4 axb4 a5 h6 Ba3 bxa3 a6 gxf4 a7 Nc6 g5 Rb8 a8R Nb4 g6 Nc6 Ra5 Ra8 Rb5 Nb8 Rg5 hxg5 Kf2 b5 c4 d5 h4 Kd7 h5 Ke6 g7 Kf5 h6 Kg4 h7 b4 e3+ f3 c5 a2 c6 d3 c7 d4 Nh3 b3 Nf4 d2 Qe2 d1R Bg2 b2 Nc3 b1N Nd3 Qd5 Ne1 d3 Qd2 Nf6 Qc2 d2 Qb2 Ra4 Rh5 Nfd7 Qc1 Nb6 Qa3 Rb4 Nd3 Na6 Qa4 Bb7 Qa5 Na8 Nc5 Rc1 Rh6 d1Q N5a4 Nd2 Nb1 Rc5 Rh3 Rg8 h8N Q1b3 Rh2 Qa3 Ng6 Rh8 g8B Bh6 Bh7 Rd8 c8B+ Rd7 Nac3 N6c7 Nf4 Qd6 Nfd5 Bc6 Kg1 f2+ Kh1 Bb7 Bh3+ Kf3 Bd3 g4 Nf6 g3 Bc4 Bc6 Na4 Rd8 Bd5+ Ke2 Kg2 Kd1 Qb5 Rd7 Qd3 Bb7 Qh7 Rd8 Bhd7 Bc6 Kh3 g2 Bc4 f1Q Bg4+ Bf3 B8e6 Qd5 Kg3 g1N Rh4 Qfd3 Bd7 Q3e4 Bdf5 Qde6 Bh3 Rd3 Bfg4 Q4d5 Nbc3+ Kc2 Rd1 a1N Nb1 Qb6 Re1 Qb8 Re2 Kd1 Rh2 Ndb3 Rc2 Nd2 Rc3 Qb6 Bf5 Qbc6 Bfg4 Qcd6+
4R3/1bbPQ3/qN3R1N/n1B1Rr1b/bpB3n1/3qr1np/2r5/1N2Kbk1 w - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 h4 g5 f4 gxh4 a3 bxa3 Qc2 exf4 Qa4+ Ke7 Qd1 Ke8 g4 Ke7 d4 Kd6 e4 b5 e5+ Kd5 g5 Ke4 d5 f5 g6 h5 d6 c5 e6 c3 g7 a2 e7 c4 e8N b4 Bd2 f3 Na3 c2 Bc3 Ke3 Bg2 c1N Rb1 a1Q Qa4 h3 Nf6 h2 Rb3 f2+ Kd1 f1B Qc6 Kf2 Nf3 h4 Qe8 f4 Ng1 f3 Nc2 h3 Ne3 Be2+ Kd2 Bb7 Rb1 Nc6 Qd7 Qa6 Ra1 Na5 Ned5 Rh5 Qe6 Rf5 Qe5 Nh6 g8R Ng4 Qe7 Qd7 Rh8 Re8 Nb6 Bg7 Ng8 Be5 Ra2 Bd1 Nh6 Ba4 Bf1 Ne2 Bb2 Ng3 Ne2 Qd8 Rg1 h1B Nc3 Bg2 Nb1 c3+ Kc1 c2 Kd2 c1R Bc4 Qd7 Re1 Rc2+ Kd1 Bf4 Re5 Kg1 Bd4+ f2 Bc5 Bgd5 Ra3 Bf7 Rf3 Bh5 Rf8 Qdb5 Rf6 Qd7 Rfe3 f1B Ke1 Qdb5 Bd5 Qd3 d7 Rc8 Bc4 Rc6 Ree6 Bc7 R6e5 Re6 Qg7 Rd6 Re8 Rd4 Qe7 Rdf4 Ree6+ Rff2 Re3 R2f3 Re5+ Re3+
qq2BRb1/k2p2Rn/2r1qNK1/NQr1b1R1/P3r3/4b3/5np1/Brr4N w - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 g4 h5 b5 hxg4 b6 axb6 c5 bxc5 Ba3 c4 Bc1 c3 Kf2 g5 h4 b5 e4 f5 a4 c2 h5 b4 e5 d3 e6 b3 h6 b2 e7 d2 h7 f3 Kg3 f4+ Kh2 g3+ Kh3 g2 Kg4 f2 Kf5 f3 Rh2 g4 Rh4 g3 Nc3 b1Q Ne4 Bg7 Qe2 d1Q Rg4 Qd5+ Kg6 Ba6 Qb5 Qe6+ Kh5 Be5 Nd2 Nc6 Ra2 Nf6+ Kg5 Rc8 Qd5 Bc4 Rh4 Qb8 Ba3 c1R Nb1 Nb4 Bb2 Nd3 Kg6 Rc5 Be2 f1R Na3 f2 Bh5 Rfe1 Ne2 f1R Ba1 g1B Rg4 Be3 Rg5 Nf2 Rb2 Rf8 h8R g2 Rb6 Qa8 Ng3 Qdb8 Nh1 Bb3 Rh7 Rg1 Rf7 Nh7+ Rf6 Rc6 Qb5 R1c5 Nc4 Rb1 Na5 Rgc1 Kh6+ Rf7 Rg6 Rf4 Ra6 Kf7 e8N Ke7 Nf6 Kd6 Rg7 Kc7 Be8 Re4 Kg6 Ba2 Qd3 Bc4 Ra7+ Kb6 Rc7 Bb3 Rc8 Ka7 Qb5 Bc7 Bf7 Be5 Rf8 Qed6 Be8 Bg8 Qd3 Qd5 Qb5 Qe6
q1k3K1/2Bp4/4rQn1/P1rn2Nn/b1B2n1r/nb1p1R2/RB1q3b/2NN4 w - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 g4 h5 b5 hxg4 b6 axb6 c5 bxc5 Ba3 c4 Bc1 c3 Kf2 f5 a4 b5 e4 g5 h4 f3 Kg3 f2 e5 f4+ Kg2 b4 a5 f3+ Kg3 b3 h5 c2 h6 b2 h7 Bd6 Rh6 Bb7 Qd3 Ra6 Nd2 b1N Rh2 Nf6 Qf5 Bd5 Bg2 f1N+ Kf2 g3+ Ke1 f2+ Ke2 g4 Kd3 Ne3 e6 f1B+ Ne2 Na3 e7 Nc6 Rh4 Qa8 Bf3 g2 Ra2 g1R Nb1 g3 Nc3 g2 Rf4 Bb3 Bb2 c1Q Bd5 Bc7 Rf3 Bh2 Bg8 Rh1 Qe5 g1N Qf4 Nh3 Qh4 Nfg4 Ke4 Qd2 Bd5 Rg1 Nc1 Bb5 Bc4 d3 Nd1 B5a4 Be5 Nf4 Bc7 Nce5+ Kd4 Rf8 h8B Rg3 Kc5 Neg6 Bb2 Nf6 Qg5 Rg4 Qe5 Bc6 Kd6 Rg5 Qe6 Rc5 Qf5 Ned5 Qg5 Kf7 e8N Rh8 Ng7 Rh4 Ne6 N6h5 Qf6+ Ke8 Ng5 Nde7 Bb8 Kd8 Bc7+ Kc8 Rf2 Ned5 Rf1 Nh8 Rf3 Nb4 Ke7 Nbd5+ Kf8 Bca4 Kg8 Nhg6 Ne4 Rd6 Ng5 Re6
n2QN1nN/1q6/1q1B1Kb1/5b1r/p1pn1b2/N2k1b2/P3RR1B/1qr2qB1 w - - 0 1 legal: proof: f4 e5 c4 exf4 d4 h5 g4 fxg3 c5 h4 d5 h3 Bg2 hxg2 c6 bxc6 Qd3 cxd5 Qc2 d4 Qd1 d3 Kd2 Ke7 Kc3 Kf6 Kd4 Kf5 b4 c5+ Kd5 g5 h4 a5 b5 g4 b6 d2 h5 a4 e3 Bd6 b7 Qc7 h6 Na6 b8B Bf4 h7 Qb7+ Kc4 Ke4 Bb2 f5 Na3 d5+ Kc3 d4+ Kc4 d3 Rh3 Nc7 Qb3 d1B Bc1 d2 Rh6 Bf3 Rh2 d1B Ne2 g1Q Qb6 Bc2 Rf2 g2 Qf6 g3 Qd8 Qd1 Rb1 g1N Rb2 g2 Ba7 Bh2 Nf4 Ne2 Ng6 g1Q Bd2 f4 Bb4 Nd4 Bb6 Bb1 Rbe2 Bf5 Kc3 c4 Bd6 Ra5 Ba7 Ne7 Bb6 Rg8 h8B Na8 Bhe5 Re8 Bbc5 Ng8 Nh8 Bd3 Ba7 Qdb1 Bb6 Bg2 Ba7 f3 Bac5 Bf4 Bb6 Bh6 Bh2 Bf4 Bbc5 Bg6 Ba7 Rh5 Bb6 Kd5 Bbc5 Bdf5 e4+ Kc6 e5 Kd5 e6 Re7 Rb2 Ke4 Bb6 Rg7 e7 Ke3 e8N Rgh7 Kb4 Kd3 Kc5 Bh1 Rfe2 f2 Rbc2 f1Q Rf2 Bf3 Rce2 Re7 Ba7 Re4 Bb6 Qb8 Kd5 Qh1 Bg1 Qhg2 Bbc7 Q8b6 Bb8 Be3 Bdh2 Bf4 Bd6 B3g4 Rc2 Qh1 Rg2 Re1 Re2 Nf3 Rgf2 Rc1 Re5 Nd4+ Re4 Bh6 Ke5 Bg5 Re1 Qhb7 Ree2 Be3 Nb5 Bf3 Na3 Ne7 Kf6 Bd2 Kg7 Bf4 Kf6 Ng8#
4N3/2P1B2n/K3B1rq/b3Rr1b/1Np2b2/r5B1/2pRn1qR/1nQnrk2 w - - 0 1 illegal: No proof kernel
3b1K1k/1PR4q/rQn2n1N/2N2rn1/1BNn1pR1/2r4q/2B4p/1b1Brq2 w - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 h4 g5 f4 gxh4 c3 dxc3 Bd2 exf4 Be3 Bb4 Bc1 Bf8 Kf2 a5 Kf3 h5 Ke4 f5+ Kd5 Kf7 e4 Kg7 b4 c2 g4 a3 g5 f3 e5 f4 e6 a4 e7 h3 Kd6 f2 b5 a2 b6 a3 b7 h4 g6 h2 Bd3 f1Q Bb2+ Nf6 Qg4 c1R Bc4 h3 Nf3 Ra6+ Ke5 d5 e8B d4 Bb3 d3 Nbd2 Be7 Bd4 Rh5+ Qg5 Rc3 Bc5 Bf5 Bc2 Qd7 Re1 a1N Qg1 a2 Bb4 Kh8 Nb3 d2 Qb6 d1N Nfd2 Nf2 Rg1 h1Q Rg4 N2e4 Nc5 Nb3 Rc1 a1R Nc4 Bd8 Bf7 Ng5 g7+ Kh7 g8N Nd4 Be6 Kh8 Nh6 Qh7 Kd6 Nbc6 Bd1 Bb1 Bf5 h2 Be4 Qhg2 Bec2 Ne7 Bd3 Qh3 B3c2 Nfd5 Kd7 Nec6+ Ke8 Nf6+ Kf8 Re3 Be4 Re1 Rc3 R1a3 Bec2 Rb3 Re3 Rc3 Re7 Nf7 Rd7 Rf5 Rc7 Ng5
qr1n1r2/p1kp2K1/1N2b3/2B5/2Q1r2b/RPn2pN1/1RB1bR2/rr3Nn1 w - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 h4 g5 f4 gxh4 c3 dxc3 Bd2 exf4 Be3 Bb4 Bc1 Bf8 Kf2 h5 Kf3 f5 g4 a3 e4 h3 b3 h4 g5 c2 e5 a2 g6 h2 e6 h3 e7 Nc6 g7 Rh4 Qe1 Rb8 Bc4 Nf6 g8R Ne4 Qe2 Nc3 Qe3 Ba6 Bd2 c1N Qe4 N1e2 Bd3 Qc8 Rg6 Nd8 Be3 Qb7 Rg8 Qa8 Nd2 Rg4 Rf1 a1R Bc5 Bc4 Bc2 Be6 Rg6 Bh6 Rg7 Bg5 Rf2 Bh4 Nf1 Rb1 Rh7 Rg8 Rg7 Rf8 Rgg2 Ra1 Qc6 Ra4 Qd5 Re4 Qc4 Kf7 Rg4 Kf6 e8N+ Ke5 Qa6 Kd5 Qc4+ Kc6 Nd6 Kc7 Nc8 Bg5 Rfg2 Bh4 Nb6 Bg5 Kf2 f3 Rh4 f4 Rh8 Ng3 Ne2 Bh4 Rhg1 h1R Rh2 Nf5+ Neg3 Nd4 Rh5 Nde2 Rgg2 Ng1 Rd5 Kc6 Rd1 Kb7 Ra1 Kc7 Ra3 Rd4 Ke1 Re4+ Kd2 f2 Kd3 f3 Ra6 Re1 Kd4 Ra1 Ke5 Rb1 Ne3 f1B Rf2 Be2 Nef1 Re1 Rhg2 h2 Ra5 Bf7 Kf5 Be6+ Kg6 Ra1 Kg7 Ra4 Qa6 Re4 Ra3 Nh3 Nd2 Ra1 Ndf1 h1R Qc4 Ng1 Bd3 Bd1 Rb2 Be2 Bc2 Nh3 Rf2 Rg1 Ne3 Rgb1 Nef1 Ng1
2q5/q1pB2Rp/r1N3rr/2rQNKN1/R4pb1/B1bn1r2/1P6/1bknR3 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 g5 h4 gxh4 a5 e5 a6 exf4 d3 cxd3 Qc2 bxa6 Qb3 a5 Qd1 a4 Kd2 Ke7 e4 Ke6 g4 Ke5 g5 Kd4 g6 f5 g7 a5 e5 h3 e6 f3 e7 f4 e8N h2 Qe2 a3 Qd1 a2 Qa4+ Bb4+ Nc3 f2 Rb1 a1R Be2 f1R Qb5 a4 Qf5 a3 Qa5 a2 Nd6 Nc6 Qh5 Nf6 g8R Ng4 Rf8 Rg8 Ne4 Ne3 Qa5 Ne5 Bg4 Ra6 Re8 Nd1 Re7 Rf3 Be6 Rg6 Ng5 Qf8 Bg4 Bf5 Rg7 Qc8 Bh3 Be4 Bd7 Rac6 Qa8 Rc5 Qb7 Ba5 Qc6 Kc4 Qd5+ Kb4 Nb5 Bf5 Ke1 d2+ Ke2 Nd3 Nd4 Be4 Nc6+ Ka4 Nf7 Bc3 Nh3 Bf5 Rf1 h1R Nhg5 Rhh6 Nfe5 Be4 Re1 Bf5 Qd4+ Kb3 Qc4+ Kc2 Qd5 Re3+ Kf1 Rf3+ Kg2 N1f2 Re4 d1B Be3 Be2 Re1 Nd1 Bg1 Kc1 Rc4 Rb1 Bf2 a1Q Ra4 Qa2 Bh4 Ra1 Bf2 Rfh3 Bd4 Bh5 Bg1 Rf3 Bd4 Rb5 Bc5 Qa3 Bf8 Qc5 Kh2 Qa7 Ba3 Rc5 Kg2 Nb4 Kh2 Bb1 Kg2 Rf2+ Kh3 Rf3+ Kh4 Nd3 Ne6 Rf6 Kg5 Rfg6+ Kf5 Ra2 Ng5 Ra1 Rd4 Ra2 Bb4 Ra4 Ba3 Ra6 Ra4 Bg4+
n1rQ1B2/4P3/p3R3/2pn2Nr/B1K2pBn/R2b3q/3N1kbr/R1b3rq w - - 0 1 legal: proof: h4 e5 f4 exf4 a4 b5 c4 bxa4 h5 d5 b3 axb3 h6 dxc4 Ra4 gxh6 Ra5 h5 Ra1 h4 e4 Ke7 Ke2 Ke6 g4 Ke5 g5 Kd4 e5 h5 g6 f5 g7 c5 d3 a6 e6 h3 e7 b2 Qe1 h4 Nd2 b1B Qg3 h2 Qg6 h3 Ra4 f3+ Kd1 Ke3 d4 f2 d5 c3 d6 Bb7 d7 Nf6 g8B Bg2 Rf4 Nd5 Qg4 Bd3 Qh4 Qc8 d8R Bh6 Rd6 Nd7 Be2 f1N Bh7 c2+ Ke1 N7b6 Bg4 Ng3 Ngf3 Rb8 Bg6 Na8 Ng5 Qd7 Rc4 Rbc8 Ra4 Rh7 Rg1 h1Q Ra3 h2 Be8 Qe6 Ba4 Rhh8 Bb2 c1R+ Bgd1 Rc2 Bg4 Rhg8 Kd1 Kf2 Bg7 Rh8 Bf8 Rh7 Nf7 Be3 Qh3 f4 Ng5 Nf5 Rc6 Qh6 Re6 Nh4 Re1 Ra2 Kc1 Ra1+ Kb2 Rd1 Kb3 Rh8 Nf1 Bc1 Nd2 Qh7 Rg1 Qf5 Rge1 Rh5 Rg1 Bdf1 Qc3 Bd3 Qa5 Re1 Qd8 Re2 Bf3 Qh3 Re1 Qf1 Bg4 h1R Rd1 Rh2 Re1 Qh1 Rg1 Nb4 Rd1 Re1 Kc3 Nd5+ Kb3 Bf5+ Kc4 Rg1 Rde1 Bb2 Rb1 Bc1 Rba1 Bd3+
1r6/Bb1pN3/1B4Q1/R1qppPqn/1b2rR2/1K1b1q1N/R4r2/1k2bn1N w - - 0 1 legal: proof: d4 h5 b4 f5 e4 fxe4 g4 hxg4 a3 a5 d5 axb4 d6 cxd6 Bc4 d5 Ba2 b3 Ke2 bxa2 Kf1 Nc6 Ke1 Nb8 Kd2 Kf7 Kc3 Kf6 f4 Kf5 h4 e5 a4 g5 a5 b5 h5 g3 h6 g2 h7 e3 a6 Ke4 a7 e2 f5 e1B+ Bd2 b4+ Kb3 g4 c4 Kd3 c5 g3 c6 Qg5 c7 Bb7 c8N Nc6 Rh5 Rb8 a8R Nf6 Na7 Nd4+ Ka4 b3 Rh2 b2 Rh4 Nf3 Nc3 b1B Be3+ Nd2 Qg4 Kc2 Nc6 Bb4 Nh3 g1Q Ne2 g2 Ng3 Qf1 Ra5 g1Q Ne7 Qf3 Nh1 Nf1 Ba7 Nh5 Qg2+ Kc1 Rf4 Qc5 Qg3 Rhc8 h8B Kb2 Bf6 Bd3 Rb1+ Kc2 Rb2+ Kc1 Rf2 a1R+ Kb3 Ra4 Ra2 Kb1 Qg2 Qd6 Qg3 Rc2 Qg2 Rf2 Qg3 Qh6 Qg6 Qc5 Bh4 Qg5 Bb6 Rh2 Bf2 Rg2 Be3 Rf2 Ba7 Bbc3 Bb6 Re4 Ba7 Bb4 Bd4 Qd6 Bdb6 Qc5
R1B3k1/Npb1P3/1qq2rr1/1RNnQ2r/bq2nN2/q7/1p4p1/1b2B1BK w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 c5 g4 h5 Kg2 f5 a4 Kf7 e4 h3+ Kh2 h4 d4 c3 a5 b3 d5 c2 g5 c4 d6 f3 e5 c3 d7 f2 a6 f4 a7 f3 Ra2 Na6 Be2 f1Q Na3 f2 Bg4 Nc5 Nf3 Rh5 Nd2 Qe1 Ne4 f1R Qd6 Nf6 e6+ Kg8 g6 Qb6 d8B Bd7 g7 Ba4 Qe5 Nd5 Nb5 Rf6 Bd2 Bd6 e7 c1Q Bc8 c2 Bc3 Rb8 a8N Bc7 Na7 Qa3 Ra1 Qb1 Be1 c1Q Rf1 b2 Kh1 h2 Rf5 Qab4 Ra3 Qd3 Ra2 Qda3 Ra1 Ne6 Nc5 Ng5 Ra2 Ne4 Ra1 Bd6 Nc7 Qh6 N7e6 Bc7 Nf4 Ra8 Kg2 h1B+ Kh2 Bf3 Ra2 Be2 Kh1 h3 Ra1 Bd3 Ra2 Qg6 Ra1 Kh7 Rg5 Bb1 g8Q+ Kh6 Ra2 Qe8 Rf5 Qec6 Qg2 Kh7 Nb5 Ra6 Na7 Q6a5 Rg5 Rg6 Rf5 Kg8 Ra1 Bb8 Bb6 Bc7 Qd4 Qe8 Nb3 Ndf6 Qe2 Bb5 Qg2 Q3a4 Nc6 Qd7 Rc5 Nd5 Qe5 Qa2 Nbd4 Qab3 Nde6 Qe3 Ra4 Qba3 Ba7 Q5b4 Ra5 Ba4 Rcb5 Qdd6 Bd4 Rb6 Ra8 Qd7 Na7 Rd6 Bdc3 Qb6 Bd4 Qdc6 Nc5 Rf6 Bg1 hxg2#
B1N2Q1r/5bN1/r1b2n2/1KRbr1q1/1pRpP3/6Bp/kb2Rb1b/B2n4 w - - 0 1 legal: proof: g4 a5 d4 f5 b4 fxg4 h4 axb4 d5 c5 d6 c4 h5 Qc7 Qd3 cxd3 h6 exd6 Nf3 d5 Ng1 d4 Ba3 Qf4 Bb2 Qxh6 Bc1 Qh2 Kd2 Ke7 e4 Kd6 a4 Kc5 c4 b5 a5 d5 a6 g5 a7 h5 Ra2 h4 Bh3 g3 Be6 g4 Nc3 b3 Bf5 Kb4 c5 b2 c6 Kb3 c7 b1R Be6 h3 Ra6 g2 f4 g3 f5 Nd7 f6 Ba3 f7 Bb7 c8R Ne7 f8B Nf6 Bd7 Nf5 Bd6 Ne3 Nge2 g1B Nd1 g2 Be6 Qe5 Ndc3 Bh2 Ra4 g1B Nf4 Qg5 Nh5 Bb2 Ng7 Bf2 Rc5 Nd1+ Bf4 Ra1 Rac4 b4 Na4 Ka2 Re1 Rae8 a8Q Re7 Bf7 Re5 Qd8 Kb1 Nb6 Ra6 Qe7 Ka2 Re2 Bfg1 Ke1 d2+ Kf1 d3 Bg3 d4 Qf8 Bf2 Nc8 Nc3 Be8 d1B Bc6 Bb3 Bd2 Nd1 Bc3 d2 Bd5 Bc1 Ba1 Bb2 Na7 Bc8 Ba8 Bb7 Nc8 Rh5 Rc2 B3d5 R2c4 Rh4 Re3 Rh8 Ke2 Nc3+ Kd3 d1B Re1 Bh5 Re2 Nd1 Rc3 Bdc6 Kc4 Bd5+ Kb5 Bhf7 R3c4 Bbc6+
bR6/pBk1bPNn/3N1nR1/6pp/r3bB2/1q1N4/rR2Qr2/1K1b2qr w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 e4 fxe4 g4 b5 h5 bxa4 h6 gxh6 g5 hxg5 Kd2 d5 c4 Kd7 Kc2 e5 b4 d3+ Kb2 e3 f4 d4 b5 a3+ Ka2 e2 f5 e1Q b6 e4 c5 e3 b7 e2 f6 d2 c6+ Kc7 Qc2 d1B Rh6 d3 Nd2 Nd7 b8N Be7 Ne4 d2 Rb1 Bb7 Qb2 Bc2 Nh3 d1B Rg6 Nf8 Nhf2 Qd3 Bg2 Qg1 Nd7 e1R Ndc5 Re2 Nd6 Qb3+ Ka1 h6 Nfd3 a2 Bf4 Nh7 f7 Rc8 Qe5 Ngf6 Rb2 Rf2 Qe2 Ba8 Be4 Rb8 Bf3 Rb4 Ne6+ Kb6 c7 Ra4 c8R Bb1 Ndc5 Bbe4 Rb8+ Kc6 Ng7 Kc7 Qa6 h5 Qe2 Rd8 Rb4 Rb8 Nd3 Rb5 Bh1 Rf5 Rb8 Rh2 Bg2 Rh1 Bg3 Rf2 Bf4 Bf5 Bb7 Be4 Rd2 Qe6 Kb2 a1R Rc2+ Qc4 Rd2 R1a2+ Kb1 Qb5+ Rb2 Qb3
B1b2qn1/1qRK4/1R4pb/2q3N1/P1nprQB1/kp3N1b/p2r4/2Rn2B1 w - - 0 1 illegal: No possible last move
r1bBQRq1/5p2/N1P2Nq1/n3R3/2N2rBB/n1bqppK1/3p4/1kr3q1 w - - 0 1 legal: proof: d4 h5 e4 a5 b4 axb4 g4 hxg4 d5 c6 f3 cxd5 Bg2 dxe4 Bf1 exf3 Kf2 b5 h4 g5 a4 d5 c4 Kd7 h5 Ke6 a5 Kf5 h6 Ke4 h7 e5 c5 g3+ Ke1 b3 a6 g2 Kf2 b2 a7 d4 Bf4 b4 Rh3 b3 Qd2 d3 Ra6 g4 Rg6 g3+ Ke1 Ne7 Re6 Nf5 Ne2 g1Q Re7 g2 Bg3 Nd6 Nf4 Nb5 Nh5 Bg7 Bh4 Nc6 Na3 Na5 c6 Qg8 Nc4 Na3 Nf6+ Kd4 Qc2 e4 Qe2 Kc3 Re5 Qe3 Rh2 g1Q Rh1 Qg6 Bh3 d2+ Kf1 Kc2 Bg4 Qc3 Kf2 b1Q Kg3 b2 Qe3 Qd3 Qe1 Rb8 a8N Rb4 Nc7 Qd1 Rg1 b1R Na6 Rc1 Qe2 Kb1 Re1 Qgd8 Re8 Rg8 h8B Ra4 Rf8 Qe8 Nh5 Bc3 B8f6 Rh8 Bd8 Rg8 Rg1 Rh8 Rg2 Qg1 Nf6 Rg8 Qe3 Rh8 Qb6+ Rb4 Qb8 e3 Qe5 Rb5 Qe6 Rf5 Qe7 Rf4 Qd7 Qee4 Qe8 Qg8 Qd7 Qd1 Rh2 Kc2 Bb6 Bb7 Re8 Qf5 Bg5 Qgh7 Re5 Ra8 Bd8 Kb1 Qe8 Qfg6 Rh5 Qhg7 Rh8 Bc8 Rf8 Qg8 Bh4 Qg1+
2R4N/r1PbK2Q/nb3r1q/1r3B2/2q2b1r/5Nk1/BpN2q2/1RQ2r1n w - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 e4 axb4 h4 f5 exf5 g5 a5 gxh4 Qe2 b3 Qf3 Qxa5+ Bd2 b2 Qd1 Qd8 Bf4 Nc6 Bb8 Nxb8 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 d5 g4 b5 c4 h5 c5 d3 c6 d2 c7 b4 f6 h3 f4+ Kh4 f5 d4 g5 d3 g6 b3 g7 h2 f7 Rh6 f6 Bd7 Ra3 Ra7 Qf3 d1R Qe4+ Kg3 Nc3 b1R Ra2 h4 Qh7 h3 Rc2 d2 Be2 Na6 Qe4 Rf1 Bb5 d1Q Qd4 Qc1 Kd5 e5 Qd1 e4 Rf2 e3 Na2 e2 Nf3 e1B Nb4 Ne7+ Kd6 Bd2 g8B Qc4 Nc2 Qc8 Qc1 Bf4+ Ne5 Bg7 f8N Qe8 Bd5 Qf7 Ng6 Rh4 Rd2 Rf2 Re1 h1R Nh8 h2 Bbc6 Qf8 f7 Rhf1 Be4 h1Q Bf5 Rf3 Bd5 Qg2 Red1 Qf2 Re2 Bgh6 Rde1 Qg7 f8Q Bhg5 Bde6 Qh6 Qg7 Be3 Qg8 Bb6 Qh7 Bf4 Re3 b2 R3e2 Rb3 Rd1 Rb5 Re4 Bfe3 Nf3 Bf4+ Re5 Ng8 Re1 Nf6 Ke7 Ng4 Bd5 Ra1 Re6 Raa5 Rf6 Ra3 Rf8 Rd3 Bg8 Rd6 Rc8 Rf6 Bge6 Qfd4 Bg8 Nf2 Bd5 Nh1 Bf7 Qc6 Ba2 Qcc4 Qd2 Qg8 Rb1 Qf2 Qc1 Qc4
Rbr2n2/3kn2K/rq1Bn1nQ/Rr1N2q1/2Q1q3/r2P1Q1N/6pq/3B4 w - - 0 1 illegal: No possible last move
7n/4Q3/R1pq1rBb/Nn3r2/1NbrbnBk/1nR2Pp1/K3Nb2/Q7 w - - 0 1 legal: proof: g4 a5 a4 b5 c4 bxc4 e4 d5 b4 dxe4 b5 f5 Ba3 g5 Bb4 axb4 a5 fxg4 h3 g3 a6 g4 a7 Rxa7 hxg4 Ra8 d4 Kf7 Kd2 Kf6 Kc1 Kg5 Kb2 h5 b6 e5 d5 c6 b7 e3 d6 h4 d7 e2 f3 e1N Rh3 c3+ Kb3 e4 Bb5 e3 Ra7 c2 Ka2 c1N+ Ka1 e2 Qd4 b3 Rh2 h3 Kb2 Rh6 Ra1 Ng2 Qf2 e1B Ra5 Na6 b8N Nc7 Qf1 Bf2 Ne2 Ba6 Bd3+ Nb5 Nd2 Rf6 Nc4 Ne7 Bg6 Kh4 g5 Bh6 Rh1 Qf8 d8Q h2 Ra1 Nf4 Na5 Ra7 Rg1 h1R Qe8 Ng8 Qe7 Rd7 Kb1 b2 Qd1 Bc8 Na6 Nb3 Ka2 Rd4 Nb4 Ba6 Qb1 Qb8 Rc1 Qd6 Rc3 Rh2 Bh7 Rh1 g6 Rhd1 g7 R1d3 Qb7 Ne7 g8B Neg6 Be6 Nh8 Qe7 Rd5 Qe1 R3d4 Bg4 Rf5 Bg6 b1B+ Kb2 Kg5 Nc4 Na3 Ra2 Be4 Qa1 Nc2 Ra3 Kh4 Ka2 Bb5 Ra7 Na3 Na5 Bc4 Ra6 Nb5
2R5/3bBrR1/qNQr2r1/kbb2r2/1b4Q1/K2n1BPp/2p5/3Nr1Nb w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 f5 e6 Bb2 exf5 Ba3 fxg4 Bc1 g3 Nh3 g5 Qb3 g4 Nf4 g2 Kd1 g1B Ng6 g3 Nh4 g2 Ke1 Na6 Nf3 Nc5 Qc2 Ne4 Qd1 Ng3 hxg3 Qd6 Ba3 Qe7 Bc1 Qd8 a4 Kd7 e4 Kc6 d4 Kb6 Kd2 h5 Kc2 c5 Kb2 f5 d5 c3+ Ka2 c4 e5 f4 e6 h4 e7 b3+ Ka3 b2 d6 c2 e8Q h3 Ra2 c3 Nh4 f3 Qd4+ Ka5 Qc5+ b5 d7 f2 Qd6 b4+ Kb3 Nh6 Qb8 Rh7 Qe3 Rf7 Qbf4 Ng4 Nf3 Qb6 d8Q Ne5 Qc4 Bc5 Qdd5 Qa6 Qee2 Nd3 Qee5 Bd7 Qed4 Raf8 Bg5 c1R Qg4 Re1 Be2 f1B Be7 Be3 Qc6 Bd2 Ng1 c2 Nc3 b1B Bf3 Rg8 Nd1 Rg6 Ra1 Re5 Qc4e4 Ref5 Qd4 Ne1 Ra3 Ba2+ Kb2 Bb5 Rc3 b3 Rh2 Ba7 Ka3 b2 Qdc4 b1R Qcd4 Qb6 Rh1 Nd3 Qb4+ Ka6 a5 Bd5 Ne2 Be4 Rf1 g1R Rc4 Rg2 Ng1 Re2 Rc5 Re1 Rf2 Rd6 Re2 Bd5 Re6 Be4 Rg6 Bd5 Rg5 Ree6 Rg7 Rg6 Qa8 Bb7 Rc8 Be4 Qd5 Qb7 Qdc4 Bc5 Qd5 Qa7 Qc6+ Qb6 Nf2 Re1 Nd1 Ka7 a6 Bd5 Be2 Bh1 Bf3 Qb7 Qd5 Kb6 a7 Qc6 a8N+ Ka6 Nb6 Qb7 Kb3 Qa8 Qc6 Qb7 Qbf4 Ka5 Qd4 Qa6 Qdf4 Nb4 Ka3 Nd3+ Qb4+ Bdxb4+
7b/kB1NB1N1/2Q3pn/p1b2b1n/5qn1/b1rQ1RRP/4n3/n1nK2Q1 w - - 0 1 legal: proof: f4 a5 b4 b5 c4 h5 a4 e5 d4 exf4 g4 hxg4 c5 bxa4 d5 Ra6 d6 cxd6 b5 dxc5 bxa6 c4 Bb2 c3 Ba3 Qb6 Bc1 Qd8 e4 d5 h3 Kd7 e5 Kc7 e6 Kb6 e7 f5 e8Q f3 a7 g6 a8Q d4 Qd5 c2 Qef7 d3 Qe2 f2+ Kd2 a3 Ra2 g3 Qc4 f4 Ra1 f3 Qh7 g2 Qg7 a2 Qcf7 Bf5 Qh6 Qc7 Qh4 Nc6 Qg7 Nd4 Qh5 Qf4+ Qe3 Ba3 Qd7 Nh6 Qc6+ Ka7 Nc3 Rc8 Nge2 g1B Bg2 f1N+ Ke1 Nh2 Na4 N2g4 Nc5 Rc7 Qg5 Nb3 Ng3 Rc8 Rb1 a1B Nh5 Bh8 Ng7 Na1 Rb3 f2+ Kd2 f1N+ Ke1 Qd4 Nd7 d2+ Ke2 d1N Qd3 Bf2 Rg1 Qf4 Bh1 Bd4 Rg3 Bdc5 Bd2 Rc7 Bb4 c1N+ Ke1 Nc3 Bf3 N3a2 Kd1 Ne2 Bg2 Nac1 Rf3 Bd4 Be7 Nfg3 Bh1 Nh5 Rc3 Nh2 Qg1 N2g4 Rg3 Rb7 Qde4 Ngf6 Qc8 Bf2 Qec4 Rb2 Bb7 Nfg4 Rcf3 Rc2 Qd3 Rc3 Qc6 Bfc5
3q1Bbn/kq2NQK1/4R2n/5Q1p/2pR1P2/qpn3N1/3b1R2/2qBbr2 w - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 c5 axb4 c6 g5 Ba6 dxc6 Bd3 c5 Bf1 c4 a4 bxa3 d4 c5 h4 gxh4 Qa4+ b5 Kd2 c3+ Ke1 c4 Qd1 Ra6 Qa4 Rc6 Qd1 Rc5 dxc5 Qd5 Nd2 Qd4 Nb1 Qd8 Ke2 h5 Ke3 e5 g4 b4 g5 b3 c6 h3 f3 h2 g6 a2 c7 c2 g7 Bb4 Bd3 Kd7 Na3 Kc6 Qe1 Kb6 Be2 Nc6 Bd1 Be6 c8R Ka7 Qf2 Nce7 Nb1 Ng6 Ba3 c1N Ne2 Nh6 Ng3 Bg8 Rf1 h1Q Rc6 Ne2 Re6 Nc3 Qc2 Rh7 Rf2 Nh8 Qd3 Ba5 Bf8 Bb4 Nf5 Ba5 Nd2 Qg2 Rc1 a1Q Nf1 Qa3 Ne7 Qh1 Qd5 Bb4 Rcc2 Ba5 Rfd2 Qg2 Rd4 Qh1 Kf2 e3+ Kg3 e4 Kf4 e2 Ke5 e1Q Kf6 e3 Rf2 e2 Ng3 Qeg1 Qf5 e1B f4 Qb7 Ra2 Qe3 Rc2 Qec1 Ra2 Nb5 Rf2 Bad2 Nh1 Nc3 Ng3 Bf7 g8Q Rg7 Qgh7 Rg4 Qhg6 Bg8 Qf7 Rh4 Kg7 Rh1 Rd7 Rg1 Rd4 Rf1
7Q/2pr1p2/Rqk1B3/q2N1Kpp/7P/np1NQ2r/2n2BR1/q1Nb2b1 w - - 0 1 legal: proof: e4 b5 b4 d5 a4 dxe4 f3 exf3 c4 fxg2 c5 a5 axb5 axb4 c6 Ra2 Kf2 Rc2 Ke2 Rxc6 Ke1 Rc2 Kf2 Kd7 Kf3 e5 Kg4 g5 d4 b3 b6 e4 b7 e3 d5 e2 d6 e1Q Nc3 Ne7 Nd5 Ng6 Qd2 Na6 b8Q Qf6 Bc4 Kc6+ d7 Bc5 Ne2 Nb4 Qe3 Rd2 Rg1 Nc2 Ra6+ Bb6 h3 Qa1 Kf5 Ne5 Bb2 Rd3 Bd4 Qea5 Nc1 h5 h4 Rd8 Nf4 Rc3 Be6 Nc4+ Nd5 N4a3 Bc5 Re8 Bd4 Re7 Qa8+ Bb7 Qh8 Ba8 Rh1 g1Q Rh2 Rd3 Rg2 Rc3 Qg3 Bb7 Bf2 Ba8 Qge5 Rh3 Qe3 Bb7 Ra8 Ba6 Ra7 Be2 Ra6 Bd1 d8N+ Kb5 Nb7 Kc6 Nc5 Rd7 Qh7 Qh2 Qh8 Qd6 N5d3 Qdb4 Ra7 Bd4 Ra6+ Qbb6 Qd2 Be5 Qe2 Bh2 Qe3 Bg1
RQn3N1/1qBk4/Br1n2nR/1r1r1rB1/P1nb3Q/5K2/r1b3rN/q2r4 w - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 g4 h5 b5 hxg4 b6 axb6 c5 bxc5 Ba3 c4 Bc1 c3 Kf2 f5 e4 g5 h4 d5 a3 b5 e5 b4 h5 c2 e6 f3 e7 d3 h6 d2 h7 f4 Rh2 d4 Bb5+ Qd7 Qe1 d1R Bb2 c1R Ba6 d3 Rh6 d2 Bc3 b3 Bd4 g3+ Kf1 b2 Be3 g2+ Kf2 g4 Rh3 Qb7 Rg3 Rc6 Ra2 Bf5 Rh3 Bc2 Bc4 Nd7 Bd5 Bg7 Ba7 Ne5 Bc5 Ng6 Nc3 b1R Bd4 Rb5 Bf7+ Kd7 Nb1 Rcb6 Bc3 Bd4+ Qe3 Ra7 Ne2 g1R Bc4 Rf5 Bb4 Raa5 Rh5 Rab5 Nbc3 Ra1 Rh1 d1R Bd6 Rbd5 Bc7 Rab1 a4 R1b5 Ne4 Rg3 Re1 Rg1 N2g3 Rg2+ Kf1 f2 Ke2 f1N+ Qf2 Ne3 Nf1 g3 Kf3 Rc6 Bd3 Rcb6 Nh2 Nc4 Be2 Nd6 Nf6+ Ke6 e8Q+ N8e7 Qb8 Nec8 Ng8 Kd7 Ne7 Re8 Ng8 Re4 Bd3 Re2 h8B Red2 Bf6 Re2 Kg4 f3 Bg5 Red2 Re4 Re2 Qe1 f2 Re8 f1N Ra1 Nd2 Rc1 Rb3 Ba6 N2c4 Rf8 R3b5 Qb4 Rdd2 Rh1 Rd1 Qe1 Bb1 Qf2 Ra2 Qf4 Bc2 Kf3 Rgd2 Re8 g2 Rf8 g1Q Re8 Rfe5 Qh4 Rg2 Qa7 Nce7 Ra8 Qe1 Qb8 Qc3+ Be3 Qa1 Bg5 Nec8 Re1 Re7 Re6 Rf7+ Rf6 Nf4 Rg6 Rff5 Rh6 Ng6+
4K1bR/1n1rr2R/1r4N1/rr2P1R1/B1N2Q2/2r1rr2/Qq3k1B/b1n1r1b1 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 c4 h5 g4 d5 e4 b5 g5 f3 g6 d3 g7 f4 Qc2 d4 Qb3 f2 Bh3 f1R Nc3 a2 Bg4 h3 Qb2 h2 Be3 h4 Rc1 a1B Nf3 h3 Ne1 b4 Qg2 d2 Bh5 d1R Qe2 b3 Bg1 b2 Nb5 b1R Qc2 f3 Qb3 f2 Na3 d3+ Rc3 d2 Nf3 Rh6 Nc2 Nd7+ Kf5 Qf6+ Kg4 Rfe1 Qa4 Rb5 Ra3 Qb2 Kg5 Ne7 g8Q Nd5 e5 Rc1 Rd3 d1R Na3 Rc3 Nc2 Nb4 Na3 Raa5 Nd4 f1R Re3 Nd3 Rg3 Re3 Ne2 Rf3 Be8 Rhb6 Nf4 Kd4 Ng6 Nc1 c5+ Kd3 c6 Ke2 c7 Nc5 Nc4 Nb7 Bc6 Be6 c8R Bc5 Qf7 Rd8 Qf4 Bg8 Kf6 Rd7 Qa2 Re7 Rg5 Bd4 Bf2 Rd7 Bg3 Re7 Rd1 h1R Bh2 Kf2 Rc7 Bc5 Rd8 Rd1 Re8 Rdd7 Ra8 Bf7 Rh8 Bd4 Kg7 Bg8+ Kf8 Rc5 Ba4 Rcb5 Rc6 Bc5 Rf6 Bd4 Rf7 Bc5 Rfh7 Bd4 Qf5 Bc5 Bf4 h2 Qf7 h1R Bh2 Rhe1 Qf4 Bd4 Qb3 R3e2 Nd6 Kf1 Nc4 Bg1 Qa3 Ree3 Qa2 Rg7 Ke8 Kf2 Qb1 Rgf7 Qa2 Rfe7+
rq2nNr1/2qr4/4rRb1/R2nB3/1nRP2b1/2r2Q2/2Np1B1q/bQ1K1k2 w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 h5 g4 hxg4 d4 a5 f5 axb4 Bg2 e6 Bd5 exf5 Be4 f4 Bd3 cxd3 e4 Ke7 h4 Kf6 a4 b5 e5+ Kf5 h5 Ke4 e6 f5 a5 g5 h6 c5 e7 c4 a6 d2+ Ke2 g3 a7 b3 h7 c3 Rh4 b2 Ra5 c2 Ra2 b4 Na3 b1Q Qe1 g2 Nb5 g4 Ra1 g3 Nh3 g1R Bb2 c1R Rg4 g2 Qg3 b3 Na3 Qc7 Qh2 Nc6 Nb5 Rc3 Bc1 b2 Ra2 Nf6 Ra4 Re1+ Kf2 Kd3 e8Q g1Q+ Kf3 Re6 Ng5 Nb4 Ra3 Rg8 Qf2 Qh2 Qg6 Ne8 h8B Bc5 Rb3 Bb6 Qh7 Ba5 Na3 Bd7 Qg2 Bc8 Kf2 f3 Nc2 Bd7 Kf1 f2 Be5 Bc8 Qb7 Bd7 Qh5 f4 Nh7 Bc8 Nf8 Bd7 Na1 Ke3 Qb8 Kf3 Rh4+ Kg3 Ke2 Kg2 Qf5 f1N Rh6 f3+ Kd1 f2 Nc2 Kg1 Rf6 Ne3+ Ke2 Ned5 Qf3 f1B+ Kd1 Bd3 Ra3 Bc8 Ra4 Bg6 Bg3 Bd7 Bf2+ Kf1 Qb6 Qa2 Qb7 b1R Qb6 Rbb3 Ba3 Rb2 Qb8 Qb3 Qb6 Ra2 Qb7 Rd8 a8R Bc8 Ra6 Rd7 Rc6 Qb2 Rc4 Na6 Qf5 Ree7 Qg4 Rg3 Qf5 Rd6 Na1 Bc3 Qf3 Bg4 Nc2 Rdd7 Bd6 Re6 Be5 Qb4 Qb5 Ba1 Qb8 Qbb6 Qb7 Qa7 Qb1 Qab8 Ra3 Nab4 Qe2+ Kg2 Ra7 Rc3 Qf3+ Kf1 Ra8 Raa6 Ra7 Rac6 Ra2 Ra6 Ra5 Ra8
2b1Bq1R/R1b1p2r/2Q2b1R/5k2/r7/bNnK4/NbQ1BPqq/nn4b1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Bf1 b4 Ba3 bxa3 Ke2 Kf7 c4 Kg6 h4 b5 h5+ Kf5 c5 g5 h6 d5 c6 e3 h7 a2 c7 b4 a5 b3 a6 b2 a7 d3+ Ke1 e2 Kd2 e1B+ Ke3 g3 Rh6 d2 Ra6 d4+ Kd3 g4 Qe2 d1Q+ Nd2 b1N Kc4 g2 Ne4 d3 Rg6 g3 Rg7 d2 Rg6 Nc6 Nh3 g1B Nc5 g2 Rg4 Bg7 Nd7 Nd4 Nb6 Nb3 Rh4 Nf6 Rh6 Nd5 Nd7 Bh2 Nc5 g1B Kd3 Bf6 Nf4 Qf8 Qf3 Ndc3 Qc6 Qg4 Ne2 Qg2 Nc1 Bhe5 Be2 d1Q+ Kc4 Bd2 Kd3 Bd6 Na4 Ba3 Nc5 Nd4 N5b3 Nc2 Bf1 Qh5 Be2 Bd7 c8Q Qhh2 Q8c7 Bf4 Qc8 Rb8 a8B Bc7 Bb7 Ra8 Ba6 Be6 Bc4 Bd7 Bf7 Ra4 Be8 Be6 Q8a6 Bc8 Qac4 Rg8 h8R Rg7 Rh4 Rh7 Rh6 Nd2 Rb1 a1B Na2 B1b2 Ra1 Nce4 Qc3 Nb1 Qd2 Nec3 Qd1 Ne3 Qc2 Ra6 Qd2 Bad6 Nac1 Nc2 Ra2 Na1 Qc2 Bc5 Ra4 Bca3 Na2 Rb6 Ra6 Rb4 Ra7 Ra4
kqRq1r2/q7/3br2R/5qnN/4p3/nN1B1RQ1/1Pb2B2/rrQq1rK1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 h5 f4 d5 Kf2 Kd7 c4 Kc7 g5 Kb7 c5 e5 g6 a5 f5 h3 g7 d3 f6 a3 f7 a4 Nc3 a2 Rh2 d2 Bg2 a3 Bf3 d4 Na4 h4 Qc2 d1Q Qc4 d3 Rb1 a1Q Bh5 d2 Qe6 a2 Bg6 Nc6 Bf5 Qb3 Bh7 d1Q Qf6 Na5 Be3 Bf5 Bc1 Ra6 c6+ Ka8 c7 Nh6 g8Q Re6 c8Q+ Qb8 Qgg7 Bd6 f8R Nf7 Rh1 h2 Bg5 e3+ Kg2 e2 Bc1 e1R Nc5 Ng5 Nb3 Nc4 Ne2 Bc2 Qf1 Na3 Bd3 e4 Rf3 Rf8 Ng3 h3+ Kf2 Re3 Nh5 Re1 Rf6 Qg4 Rf3 Qf4 Be3 Qf5 Rg1 h1R Rc1 h2 Bb6 Nh7 Rg6 Ng5 Rh6 Rg1 Qe5 h1Q Bc5 Qb1 Bd4 a1R Qg3 Qa2 Be3 Nb1 Qc3 Qaa7 Qd2 Na3 Qd1 Bb1 Rc8 Bc2 Qc1 Rd1 Qe2 Rge1 Qf1 Rb1 Rf4 Qf3+ Kg1 Qe2 Rf3 Ra1 Qd2 Rdb1 Qc1 Qd1 Bf2 Rxf1+
2r2k2/1bnBqB1n/8/b2NBn2/n1npbR2/2NQ1q1Q/Kb3P2/b4Rr1 w - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 Kd2 h5 g4 e5 c4 d5 Kc2 b5 Kb3 b4 g5 e3 c5 d3 c6 d2 g6 e2 g7 e1Q c7 e4 Nc3 h3 Ba6 e3 Nb1 a2 Bb7 h4 Nc3 d4 Nf3 e2 Nb5 h2 Rf1 h1N Rg1 h3 Ba6 h2 Nh4 Qd5+ Kb2 b3 Ng6 Bb7 c8B Ng3 Nc3 h1B Bh3 Nf6 g8Q Qf3 Bc8 Nh7 Qd5 Rg8 Qc2 Nf5 Qd6 d1N+ Ka3 b2 Bh6 b1N+ Kb3 Na3 Qc5 Nc4 Rg4 Ndb2 Nf4 Na4 Qa3 Be4 Rd1 a1B Ka2 Bd6 Rh4 Rg1 Bg7 Bg2 Bf6 Kf8 Bd7 Bh1 Qab3 Ba3 Nfd5 B3b2 Be5 Bg2 Bb7 Na6 Qd3 Rc8 Rf4 Nc7 Bbc6 Bh1 Be8 Bg2 Bcd7 Bh1 Bf7 Bg2 Nb5 Qb4 Rb1 Qe7 Rf1 e1B Qa3 Ba5 Nbc3 Qc5 Nb6 Bb7 Nbd5 Qe7 Qb3 Qe2 Qh3 Be4 Qc2 Qh5 Qcd3 Qf3
Q1K1n2r/r3bb1R/Q2Q4/1q2b2P/r3qn1b/B2N1kB1/p6R/bN1r1r2 w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Kd2 f3 Ra2 g3 Bg2 fxg2 Ra1 cxd6 Ke1 d5 Ra3 d4 Ra2 Qh4 Ra1 Qd8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 Ke4 h4 d5 c4 a5 b4 f5 c5 g5 e3 f4 h5 d3 c6 a3 c7 d2 Kb6 f3 b5 a2 Rh3 a4 Na3 f2 Rh1 f1R Rh3 d4 Nb1 g4 Qc2+ d3 Bb2 d1R Bc1 a3 Qc6+ Qd5 Rh1 d2 Ne2 g1B Nf4 g2 Qc2+ Kf3 Qh7 g3 Ne6 Nf6 Qh6 Ne8 Qg5 Bf2 Qh6 g1Q Nf4 g2 Nd3 Qe4 Rh2 Bh4 Qd6 Be6 c8Q Bf7 Qa6 Nc6 Kb7 Ra7+ Kc8 Bfe7 b6 Nd8 b7 Ne6 b8B Nf4 Bb2 Qh1 Bc7 Qa4 e4 g1B e5 Bd4 e6 Qb5 Bc1 Be5 Bb2 B7f6 e7 Rde1 Bb8 d1R Bc1 Re4 Bc7 Ng7+ e8Q Bd8 Qec6 Ne8 Qa8 Bdg5 Bb6 Qg2 Bf2 Be7 Be1 Qe2 Bg3 Qe3 Bb2 Qd4 Bc1 Qdd5 Bb2 Ra4 Qh6 Bd8 Bc3 Re4 Nb4 Rb7 Bce1 Bg6 Qe6 Red4 Qd7 Qe4 Nc3 Bdf6 Rc1 a1B Nd3 a2 Nb1 Bd6 Rc7 Ra7 Bb4 Bde5 Ba3 Rda4 Qd8 Qed5 Rh7 Bf7 Qg6 Be7 Qa6 Qe4 Qd7 Qb4 Qdd6 Qb5
3n3n/3b4/1bRrr1q1/2B5/qb2R1BQ/1kNbN1K1/bP2r1p1/Q2rN1n1 w - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 g4 h5 f4 exf4 c3 dxc3 Qd6 hxg4 Qd5 Rh6 Qd1 Rh8 Kf2 Ke7 h4 Ke6 e4 a5 e5 d5 h5 f5 h6 g5 h7 d4 Nh3 Kd5 e6 g3+ Kg2 f3+ Kg1 g4 e7 c2 e8N f4 Bg2 Kc4 Nc7 f2+ Kf1 d3 Ne8 a3 Qe1 a2 Be3 c1B Ng5 a4 Bb7 d2 Kg2 d1R Rh5 f1B+ Kh1 f3 Bf2 g2+ Kh2 g1N Kg3 a3 Bc5 f2 Rh4 Ne7 Ne6 Bd7 Bg2 Be3 Ba7 Rd6 Nd4 Qb6 Rh5 Nbc6 Nf5 Ng6 Qa5 Bd3 Rh4 f1B Qe5 Nd8 Bf3 Kb3 Qd5+ Bc4 Nc7 Bd3 Qc5 Qc6 Qe5 Bb6 Nc3 Rb8 Re1 a1R Ne3 a2 Na6 Rd1 Rh6 a1Q Nb4 Qaa4 Nbc2 Be7 Be2 Re8 Qa5 Nh8 Bf3 Bf8 Re2 Ree6 Ne1 Qe4 Qa6 Qg6 Qa5 Nhf7 h8Q Rb7 Qf6 Nh8 Qh4 Rc7 Qa6 Rc5 Qa5 Rce5 Qa6 Bc7 Bc5 Bb6 N3c2 Be7 Re4 Bf8 Ne3 Be7 Kf4 g3 Bg4 g2 Qa5 Bb1 Kg3 Ba2 Qa6 Be2 Qd3 Bf1 Qb1 Bd3 Qa1 Rdd5 Bd4 Bb4 Bc5 Rdd6 Rh7 Bc6 Rc7 Bd7 Rc6 Rf5 Qe7 Rf2 Qh4 Re2
4B3/1RQ1n2Q/2nq4/1q1qr1nR/2Q2b2/1p1rkN1r/P4qbN/1Bnn2K1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 c4 Ke7 e4 Kd6 h4 Kc5 h5 d5 h6 b5 e5 g5 h7 f5 e6 b3 e7 g2 Kf2 g3+ Kf3 g4+ Ke2 b4 e8B f4 Rh3 d3+ Ke1 Kd4 c5 f3 c6 f2+ Kd2 b2 c7 b3 Qc1 Bb7 c8Q Qd6 Rh5 Ra5 Qe1 Ne7 Qf5 Nbc6 Rh1 Bh6+ Kd1 d2 Ke2 d1N Qf8 Bf4 Nd2 b1R Nh3 g1Q Ne4 g2 Rh2 g3 Nc5 Rc1 Kf3 Rc3+ Bd3 f1Q+ Nf2 Ba8 Rh6 Qh2 Rh5 g1N+ Kg4 g2 Bb1 Re3 Nd7 Nf3 Qg8 g1N Ne5 Rd3 Qc3+ Ke3 Qc5+ d4 Qgc4 Ng5 Nf3 Bb7 Qb6 Ne2 Qc7 Qhg2+ Kh4 Nc1 Ng4+ Ke4 Ngh2 Re5 Qc5 Ke3 Qc4 Qgf2+ Kg4 Rf8 h8Q Rf6 Rh7 Rh6 Rf7 Rh3 Qh7 Nf5 Qc8 Ba8 Rb7 Nfe7 Qc7 Q1e1 Bc2 Qa5 Rb1 Qb5 Rb2 Rc3 Bb1 d3 Rd2 Nb2 Rd1 d2 Rg1 d1Q Rg3 Rh6 Rh3 Q1d5 Rh4 Nd1 Rh5 Ne4 Kh3 Rd3 Ng1 Qe1 Kg2 Qf2+ Kh1 Ng5+ Ngf3 Ne6 Rg5 Rh3 Rh5 Ng5 Rb6 Nd4 Rb8 Qd5c6 Rb6 Qe2 Kg1 Qcc5 Nh4 Bg2 Rb8 Qcd5 N4f3 Ndc6 Rb7 Qf2#
1Rb1B1q1/2KNnr2/n1n1bb2/1rqb3N/QQ4N1/p1bq4/P2RB3/2k4q w - - 0 1 illegal: No possible last move
1qN1R2b/r4K2/1Qp1bQ2/Q1B2n2/1qP2n1n/q1b2BNn/k1n3r1/3R1b2 w - - 0 1 legal: proof: b4 g5 f4 a5 e4 axb4 h4 gxh4 a3 bxa3 e5 d6 Ba6 dxe5 Be2 exf4 Bf1 f3 Kf2 Kd7 Ke3 Kd6 Kd4 h5 c4 e5+ Ke4 Kc5 g4 Kb4 d4 b5 d5 f5+ Ke3 h3 g5 a2 g6 e4 Kf4 e3 Ke5 e2 g7 e1N d6 h4 d7 c6 Ke6 h2 Qc2 h3 Qe4 Kb3 Qe5 b4 Bd3 f4 Qe2 f2 Bb2 f1N Qf2 f3 Qb6 f2 Qa7 Ne3 Bc3 f1B Bb2 N3c2 Qb7 Ng2 Be5 Ra7 Bg3 Na6 Bd6 Nh4 Kf7 Nh6+ Ke6 N6f5 g8Q Bg7 Kf7 Bc3 Qb6 Nc7 Bf8 Nd5 Qe3 Nf4 Qh7 Rg8 Qh8 Rg2 Ne2 Qc7 Rg1 h1N Qh6 h2 Qb6 Nf2 Qf6 h1Q Na3 Qb8 Ng3 Qh3 Re1 a1B Be2 Ka2 Bc5 b3 Bf3 b2 Re8 b1Q Nb5 Qb4 Nd6 Bab2 Qb7 Ba1 d8Q Bd7 Nc8 Bab2 Qbb6 Ba1 Qg5 Bh8 Qdf6 Bc3 Nh1 Qg3 Qh5 N2h3 Qhg5 Qe1 Ng3 Qc1 Qh5 Qca3 Qhg5 Bd3 Rd1 Bf1 Qh5 Ne7 Qhe5 Nef5 Qec7 Nhg6 Qa5 Ngh4 Qcb6 Be6+
1qR1Bnr1/N1nbb1b1/2N1b2r/1N1nB3/1Qn1Qp2/5Pb1/4Knk1/2n2R2 w - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 d5 h4 dxe4 a4 g5 a5 gxh4 b5 c3 b6 axb6 Qe2 bxa5 Qd1 a4 d4 Kd7 g4 Kc6 g5 Kd5 g6 f5 g7 e5 Rh3 c5 Bd3 h5 Qg4 e3 Bb2 c4 Rh1 e4 Qg2 c2 Qg6 c1N Kd1 h3 Qf6 e2+ Kd2 e1N Qa6 h4 Ke3 f4+ Kd2 e3+ Kd1 e2+ Kd2 h2 Nh3 a3 Ra2 Nb3+ Kc3 Be7 Ra1 a2 Na3 Nf3 Bc1 e1B+ Kc2 c3 Kd1 c2+ Ke2 Bd7 Rb1 a1B Qb5+ Nc5 Qb6 Ne6 Ng1 h3 Qb4 Nc7 Nb5 Nd2 Bg6 Nf6 Bb2 Rh6 Be8 Ke4 g8Q Nfd5 Nf3 Nc4 Rf1 h1N Ne5 h2 Nc6 Qc8 Nca7 c1N+ Kd1 Kf3 Qh7 Kg2 f3 Bg3 Qe4 Nf2+ Ke1 h1B Bc3 Nde3 d5 Bb2 d6 Ned5 Bh8 Bg7 Rb3 Be6 Rc3 Nd7 Rc2 Nf8 d7 Qb8 d8N Kh3 Ndc6 Bg2 Rc3 Kh2 Rc2 Bgh3 Rc3 Kg2 Rc2 Nd3+ Ke2 Bd7 Rc3 Bhe6 Rc2 Bc3 Be5 Bd4 Bd6 Bg7 Be5 Nc1+ Ke1 Nd6 Bd4 Nh7 Bh5 Qg8 Na5 Nce8 Be5 Qf8 Rc7 Nc4 N5c6 Rd8 Rb7 Nec7 Rb8 Qh8 Ra8 Rb8 Bf7 Qc8 Bh5 Qb7 Bf7 Re8 Rc8 Rg8 Bg6 Nf8 Be8 Na3 Kd2 Qb6 Ke1 Qb8 Kd2 Nc4+ Ke1 Ncd3+ Ke2 Nc1+
2k5/n5KN/r2R4/pqn2q1n/1b1Q3r/1qB2b1N/2PbQrR1/n1N2B1r w - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 g4 b5 f4 exf4 a5 h5 a6 hxg4 Bb2 Bxb4+ Nc3 Bf8 Bc1 b4 Nb1 b3 Bd2 Bxa6 Bc1 Bc8 Kd2 a5 Kd3 g5 Ke4 f5+ Ke5 d5 e4 Kd7 h4 f3 h5 d3 h6 b2 h7 d4 Ra4 g3 Rh5 g2 Rh4 g4 Bh6 f2 Bd2 f4 Kf5 f3 Kg6 g3 e5 Qb6+ Kf7 Nc6 Qc1 Qb3+ Kg6 Bb7 e6+ Kc8 e7 Na7 e8N Nf6 Bg5 d2 Ra3 d1N Ne2 g1Q Bd2 g2 Bh6 d3 Nf4 d2 Ra4 Bb4 Bg7 Nc3 Na3 d1R Bf8 b1Q Ba6 f1N Qe3 f2 Rh2 Nh5 Nb5 Nd2 Qe2 f1R Bg7 Rf2 Nf6 Qf1 Nh3 g1B Rg2 Nce4 Nc3 Nc5 Na2 Q1b2 Bc4 Bf3 Nc1 Qe5 Kh6 Qf5 Ra1 Bh2 Ra4 Bd6 Bd3 Bc3 Rd4 Bb4 Bb5 Be5 Rd6 Bec3 Qe3 Q1d3 Qe2 Rh1 Bc4 Qdd5 Bb5 Qb7 Bd3 Qb5 Bc4 Rf8 h8Q Re8 Nh7 Rg8 Bf8 Rg4 Qd4 Rh4 Bg7 Qa3 Qde3 Ndb3 Qd4 Na1 Be5 Qb3 Bd3 Nf6+ Kg7 Bd2 Qde4 Nc6 Bc3 Ra6 Qd4 Na7 Qe1 Qb8 Bf1 Qb5 Qe2 Nh5+
7b/Qrr1b1Bb/1R3NQp/2bP1n1n/b4NNb/2n5/K1R2B1r/4nkq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 e5 c5 exf4 c6 dxc6 Qb3 c5 Qd1 c4 h4 Nh6 g5 Ng4 Bh3 Nf2 Bg4 hxg4 h5 Ne4 h6 Nf6 h7 Ng8 Qc2 Na6 Qg6 Nb8 Qh6 gxh6 Kd1 Ke7 Kc2 Kd6 Kb2 Kd5 e4+ Kd4 a4 Kd3 g6 f5 a5 b5 a6 c5 e5 c3+ Kb3 g3 a7 c2 g7 f3 e6 c4+ Kb2 f2 e7 f1B e8Q g2 Qf7 b3 Ra6 b4 Rh4 c3+ Ka1 f4 Ba3 c1B Qf6 b2+ Ka2 c2 Qe7 f3 Qe6 f2 Qb6 Be7 Rg4 Qd4 Qg6+ Bf5 Qb6 Nc6 Re4 Ne5 Nc3 b1N Ra5 b3+ Ka1 b2+ Ka2 Nf6 g8Q Nf3 Rd5 Ne1 Rb5 Nh5 Qge6 Rhc8 h8B Bh7 Rh4 Rc7 Nge2 g1B Nd1 Nc3+ Kb3 Qc5 Rc4 b1R+ Bb2 Rb8 a8N Rbb7 Bg7 Ra1 Qg4 Ra2 Qa7 Bg2 Qg5 f1N Rb6 Nfg3 Ne3 Nf5 Ng4 Bc6 Qg6 Qe3 Ba3 Bb2 Bc5 c1B Bcd4 Qg3 Bf2 Bh4 Rc5 Ba3 Rc4 Bae7 Rc5 Bb2 Nf4+ Ke4 d4 Kf3 d5 Bb5 Nd3 Kg2 Nf4+ Kf1 Rc4 Ba1 Rcc6 Re2 Rc5 Ba4+ Ka3 Rc8 Nc7 Qe3 Ne8 Rcc7 Nef6 Qg3 Bd4 Rh2 Be3 Bf2 Bd4 Qg1 Be3 Nd1 Ka2 Bd4 Rc2 Bdc5 Ne8 Bhf6 Bd4 B2h4 Bf2 Bc3 Bf8 Bg7 Nef6 Bh8 Bg7 Nc3+
1QN5/n1br1r2/2BrQ1B1/nR2br1K/k2n1bn1/pr1P3N/1qb5/R1R5 w - - 0 1 legal: proof: c4 e5 a4 b5 f4 bxa4 g4 exf4 g5 d5 b3 dxc4 Bb2 h6 Bd4 hxg5 Bf2 g4 Bg3 fxg3 e4 Kd7 Ke2 Kc6 h4 Kb5 h5 f5 h6 g5 b4 a5 h7 c5 e5 c3 e6 g2 e7 c4 e8B+ Nc6 Nf3 g1N+ Ke3 c2 Nh2 c1N Qc2 a3 Bh3 a2 Qb2 f4+ Ke4 f3 Qb3 a4 Bf1 a3 Bg2 c3 Qc2 g3 Bh5 f2 Bg6 f1R Qb3 g4 Qd5+ Ka4 b5 c2 b6 Nf3 Kf4 Ra5 b7 Nb3 b8R c1B Qe5 Nfd4+ Nf3 Bd6 Ra8 Bf5 Ra6 Bc2 Bf7 Qb6 Kg5 Na7 Kh4 Bc7 d3 Bf4 Nbd2 Nf6 Nh2 Rd8 h8Q Rd6 Rd1 a1B Ne4 Rf2 Bf3 g2 Rc1 g1R Bg6 g3 Qb8 Ng4 Kh5 g2 Qf5 Qb4 Rb6 Rc5 Qe5 Na5 Rb5 Qb2 Qf5 Rc3 Qe6 Rgf1 Rg1 Rd7 Nd6 Rb3 Bc6 Rf3 Rh1 g1R Nc8 R3f2 Nf3 Rg3 Ng5 Re3 Qd6 Re6 Qd5 Red6 Rg1 Re2 Qf7 Ree7 Qe6 Rf7 Rh1 Bg3 Rg1 R1f5 Rgd1 Bf4 Rg1 R5f6 Nh3 Rf5+ Kh4 Ne2 Rb1 Qa2 Rgc1 Bae5 Ra1 Qb1 Rg1 Nd4 Rc1 Bg5+ Kh5 Qa2 Ng1 Qb2 Nh3 Bgf4+
2K3n1/rQ1n2N1/Qb4B1/P1RNBr1n/1N2b3/1k2b2r/rqp1n2n/1Rb5 w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 h5 g4 hxg4 b5 e5 b6 exf4 d3 cxd3 Ba3 axb6 Bb2 b5 Bc1 b4 Kf2 Ke7 a4 Kd6 h4 Kd5 e4+ Kc4 a5 c5 e5 g5 h5 b5 h6 f5 h7 f3 Kg3 b3 e6 f4+ Kh2 b2 e7 b4 e8Q f2 Qd7 f3 Kg3 b3 Qg7 Nd7 Rh5 Qf6 Nc3 b1R Ne4 b2 Rh4 Bb7 Bd2 Ra7 Bh3 f1N+ Kf2 g3+ Ke1 g4 Bc3 g2 Kf2 g3+ Ke1 Nh2 Kd2 f2 Ke3 d2 Ne2 g1B Bf5 f1N+ Kf4 g2 Nd4 Ng3 Nc2 Kb3 Qe2 d1R Nb4 c4 Nd6 Rd2 Ne8 Be4 Be5 c3 Qa6 Bb6 Rh5 g1B Qe7 Re1 Rb1 Bh6+ Rg5 c2 Ng7 Rd5 Qf7 Nb8 Qfb7 Nd7 Bd6 Qc3 Bg6 Bgf2 Be5 Re3 Rc1 b1N Rh1 Qb2 Rc1 Nc3 Rb1 Nhf1 Kg4 Nh5 Rf5 Bf4 Rg5 Bf3+ Kf5 Ne2 Ke6 Be4 Rf5 Nh2 Rg5 Nh6 Rf5 Rb8 h8N Rh3 Rg5 Rb5 Kd6 Bbe3 Kc7 Ng8 Rf5 Rf8 Rg5 Rf7 Kc8 Bb6 Bb8 B2e3 Rc5 Bc1 Be5 Bg5 Nd5 Rf1 Nf7 Rf5 Nd8 Bge3 Nc6 Rb4 Ne6 Rc4 Ng7 Ra4 Ncb4 Ra2
1b3n2/KQB4P/1Rq1n1qQ/N7/rp2rnB1/rR6/N1b1B1kr/4nrr1 w - - 0 1 illegal: No possible last move
Kn1q2Rr/3qr2r/Q7/1Q1rN2B/N3kPqN/1bpbnR2/qb5B/6b1 w - - 0 1 legal: proof: c4 f5 b4 a5 c5 axb4 c6 dxc6 Na3 c5 Nb1 c4 h4 g5 e4 fxe4 a3 bxa3 Rh3 gxh4 Rh2 Ra5 Rh1 Ra8 Ke2 Kf7 Ke3 Kg6 d4 Kf5 f4 c5 d5 h5 g3 e5 d6 b5 d7 a2 Qd3 h3 Qa3 h2 Qb2 c3 Bc4 b4 Qf2 c2 Bf7 c4 Qe2 h4 Na3 h3 Bd2 c1B Rb1 a1Q Qf3 b3 Qf1 c3 Qf3 b2 Qf1 Nf6 Qb5 Qa2 Bh5 Ra5 Nf3 Ba6 Rd1 h1Q Rf1 h2 Nc4 Qg2 Nb6 h1R Na4 Bg7 Ra1 b1B Rg1 Ba3 Be1 Bb2 Rf1 Bc2 g4+ Ke6 g5 Kf5 g6 Qg4 Bh4 Bb3 Bg3 Rh7 Bh2 Nd5+ Ke2 e3 Kd3 Bf6 g7 e2 g8Q Ne3 Qgc4 e1R Rf2 Re2 Rg1 Bh4 Rff1 Bf2 Rg3 Bg1 Nh4+ Kf6 Qc8 e4+ Kd4 Re1 Rff3 Ke6 Qf1 Bd3 Qb7 Re5 Qb5 Kf6 Qe2 Ree7 Kc5 Rd1 Ng6 Kf5 Rg2 Qe8 d8N Qd7 Nf7 Rh8 Nfe5 Rd2 Bg3 Rh3 Kb6 Rh2 Nf8 Rh4 Bh2 Rd1 Bf7 R4h7 Bh5 Bdc2 Nf7+ Qd5 Qc6 Qg7 Ng6 Nf1+ Rff2 e3 Bg3 Ke4 Qa6 e2 Nfe5 e1Q Qcb5 Ne3 Nh4 Qed2 Rf3 Qgg8 Bh2 Qdd8+ Kc5 Q2d7 Rg6 Qd8e8 Kb6 Rd5 Rg2 Bd3 Rg5 Qg4 Rg6 Nd7+ Kb7 Nb8+ Ka8 Qed7 Rg7 Qge8 Rg8 Qed8
r1k1N2r/B1b3bR/n2R2n1/2rBP3/nnb2K2/1q2Rn2/4pQpQ/q3N3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 f6 exf6 Qd2 f5 Qf2 f4 Qe3 dxe3 Ke2 f5 h4 d5 a4 Kd7 c4 b5 c5 g5 e5 b3 h5 b4 a5 g3 Kf3 g4+ Ke2 b2 a6 f3+ Kd3 f4 a7 g2 h6 g3 h7 e2 Ra5 b3 Rh5 d4 Ke4 d3 Ra1 d2 Rh1 d1R Ra2 f2 Bd2 f3 Ra4 Ba6 c6+ Kc8 c7 Qd5+ Kf4 Bc4 Bc1 Bg7 Bd2 Ne7 Ba5 Rc1 Be1 Na6 Nd2 b1N Ne4 b2 Nf6 Nc3 Ne8 b1Q Ra3 Na4 Re3 Qa1 Rh6 Qd1 Rd6 Qb3 Ba5 Rc3 Bb6 Rc2 Nh3 g1B Ng5 Rc1 Bg2 f1N Bh1 f2 Bd5 g2 Nf3 Rc2 Ne1 Nh2 Bd4 f1N Bc5 Rb8 a8Q Nf3 Ba7 Bf2 Qc6 Ra8 Qb6 Ng6+ Ke4 Rf8 h8Q Rc1 Qh2 Rh8 Qd4 Bh4 Kf5 Bd8 Qdh4 Rc3 Qf2 Rc1 Re4 Rc2 Rh4 Rc3 Rh7 Ne3+ Ke4 Nc2 Kf5 Ngh4+ Kf4 Ncb4 Rdh6 Kd7 c8R Bc7 Rb8 Rc1 Rbb6 Rc3 Rbd6+ Kc8 Rhg6 Rc2 Rg3 Ng6+ Kg4 Ng5 Re3 Nf3 Kg3 Bb5 Kg4 Rc5 Kf5 Bc4 Kg4 Nf8 Kf4 Ng6+
1Bq4N/2b1K3/b1Np1bRr/n1q5/1q1QRn1B/2P5/n1b2p1Q/Nrk4b w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 b5 h4 g5 a4 b3 c3 b4 e3 b2 h5 g4 h6 d6 h7 b3 a5 d3 a6 d2 a7 Nc6 e4+ Kf4 e5 Ke3 e6 f5 e7 f4 e8Q+ Be7 Qf7 f3 Rh5 Nb4+ Kc4 Na2 Kd5 Bf6 Nh3 g1Q Rf5 g2 Qb7 g3 Qb5 Ba6 Ke6 Ne7 Rg5 Nc6 Rg6 Na5 Ng5 Rb8 Na3 b1B a8N b2 Nf7 Bc2 Qh5 b1Q Nb6 Qb4 Qh2 Qc8+ Nd7 Qf2 Rb1 g1B Rb2 Be4 Nc2+ Kd3 Na1 g2 Qa4 d1B Be3 Bc2 Ba7 Kd2 Rb3 Rb6 Bb8 Qfc5 Rb1 Bf2 Re1 g1N Re3 Bc6 Re1 Nh3 Re4 Be5 Ke7 Nf4 Rd4+ Kc1 Re4 Bg7 Nde5 Bd5 Nc6 Bfd4 Re3 f2 Ree6 Bh1 Re4 Qa3 Qc4 Rb1 Qd5 Qab4 Qe5 Be3 Qd4 Rf8 Nh8 Rf6 Rg4 Rh6 Rg6 Qd5 Nf7 Qdc4 h8B Be5 Bf6 Qcc5 Bh4 Bg7 Qe5 Bd4 Nh8 Bf6+ Kf7 Bd8 Ke8 Bb6+ Ke7 Bc7 Qd5 Bg7 Qd4 Bf6+
4k3/2Kbq1rn/pB1Q2q1/rr1Q2Bn/P2Q4/1r1N4/bRpR1br1/2q1N3 w - - 0 1 legal: proof: f4 e5 c4 exf4 d4 h5 g4 fxg3 c5 h4 d5 h3 Bg2 hxg2 c6 bxc6 Qd3 cxd5 Qc2 d4 Qd1 d3 Kd2 c5 Ke3 g5 Ke4 f5+ Kd5 g4 a4 d2 h4 c4 e4 f4 b4 f3 b5 c3 e5 c2 h5 f2 b6 f1B h6 Bc4+ Kd4 d5 e6 Ba2 Ke5 d4 b7 d3 e7 Nf6 h7 Bd7 Kd6 Nh5 Qf1 d1Q Ne2 g1R Nd4 d2 Qa6 g2 Ne6 g3 Nf4 Bh6 Nd3 Be3 Qc6 Bf2 Qd5 Rg8 h8B Rg5 Qd4 Rb5 Rh2 Qg4 Bf6 d1Q Be3 Qg6 Nd2 Qc1 Nf3 Re1 Bg5 g1R Rb1 g2 Rb2 Re3 Nfe1 Rf3 Ne5 Rfb3 N5d3 a6 Be3 Ra5 Qd5 Ra7 Bb6 Rf1 Qd4 g1R Qd5 Rg2 Qd4 Nc6 b8Q Ne5 Qb7 Ng4 Qbd5 Qg7 Bg5 Ngf6 Qh4 Nh7 Qhd4 Rg4 Rg2 Rg1 Rh2 Rc7 Rg2 Rcc5 Rh2 Rcb5 Rg2 Qa8 Kc7 Qg6 Qd6 Qae4 Q6d5 Be3 Rd2 R4g2 Qd6 Bf2 Q4d5 Qe5 Qd4 Kf7 e8Q+ Kg7 Qe7+ Qf7 Kb8 Rg3 Be3 R1g2 Kc7 Kg8 Qc4 Rg7 Qf6 Qe7 Qcd5 Kf8 Qfd4 Qg6 Bg5 Ke8
1NB5/1bNK1pQN/p3r3/3b1BRb/4r1P1/1qb2n1k/2bQ3n/2qRn1r1 w - - 0 1 legal: proof: d4 e5 f4 exf4 a4 c5 h4 cxd4 h5 b5 h6 bxa4 b3 a3 Bb2 axb2 Qd2 gxh6 Qc1 h5 Qd1 h4 Kf2 Ke7 Kf3 Ke6 Kg4 d5 e4 h5+ Kf3 a6 c4 h3 g3 h4 Kg4 h2 e5 d3 b4 d2 c5 h3 b5 f3 c6 f2 b6 d4 c7 d3 b7 Qd5 Ra2 Nf6+ Kf4 Ng4 Nc3 b1R Qa4 d1B Kg5 d2 Bb5 f1Q Bc4 Rh4 Bb3 Bg7 Nge2 Nd7 b8N Bc2 Qd4 d1B Ne4 Bb7 c8B Ra7 Rg1 h1N Ra1 h2 Nf6 Nhf2 Nh7 h1B Qd2 Nh2 Nc3 Bh5 Nb5 Re4 g4 Nd3 Ra5 Qc1 Rd1 Ne1 Nc7+ Ke7 Ba2 Qb3 e6 Bc3 Kf5 Ra1 Bb1 Ne5 Rb5 Bd5 Rc5 Kd6 e7 N5f3 e8Q Rb7 Qh8 Rb6 Qhd4 Bg2 Kf6 Bh1 Kg7 Ke7 Kg8 Rbe6 Qg7 Kd6 Kf8 Bg2 Qg6 Ke5 Rb5 Rd6 Ke8 Re6+ Kd7 Bh1 Qe2 Kf4 Qd2+ Kg3 Qg7 Kh3 Rc5 Bb7 Rg5 Bg2 Rc5 Bf1 Rd5 Bc4 Rg5 Bcd5 Ba2 Qbb2 Bc4 Qb3 Bd3 R4e5 Bg6 Re4 Bf5 Qca3 Rg6 Nd3 Rh1 Rae1 Rf1 Qc1 Rg5 Rd1 Rf2 Rh1 Rf1 Rg1 Rd1 Nde1
kBB2R2/P1b4Q/N3pp1r/B1b2b2/2b2Nn1/3Qn2b/Knq2q1R/6qr w - - 0 1 legal: proof: d4 h5 b4 c5 g4 cxd4 b5 hxg4 e3 dxe3 b6 exf2+ Kd2 axb6 Be2 b5 Bf1 b4 a4 g5 h4 b5 c4 d5 Kc2 Kd7 Kb3 Kc7 c5 Kb7 h5 f6 h6 g3 a5 g2 h7 g4 Bc4 f1B Be3 d4 Bd3 g3 Nd2 Nd7 Rh2 Qb6 Qg4 Nh6 Nh3 g1Q Nf4 g2 Nb1 Ne5 Ng6 Nf5 Qg5 Ng4 Bd2 Nfe3 Kb2 b3 Qh6 b4 Bf5 Bb5 Nc3 d3 c6+ Ka7 Be1 d2 a6 d1N+ Kb1 b2 c7 Qf2 Ne4 g1B Ka2 Qc2 Nc5 b3+ Ka3 b1Q Ba5 b2 Nf4 Be6 c8Q Bf2 Qc6 Bg3 Qf3 Re8 Qe2 Ka8 Qd3 Qf2 a7 Qbc2 Rc1 b1B Na6 Nb2 Qg7 Bec4 Bd7 Be6 Bc8 Rd8 Qg8 Rd5 Rch1 Rh5 Qg7 Rh6 Re1 Rg8 h8B Bf5 Rc1 e6+ Qe7 Rgg6 Bg7 Rh4 Bh6 Qd4 Nh3 Bc7 Bf4 Rgh6 Bd6 Qg1 Qh7 Qf4 Rd1 Qff2 Nf4 Be7 Rg2 Rh1 Rh2 Ba2 Rb1 Bd5 Rc1 Bb7 Ka2 Bg2 Rb1 Bh3 Rd1 Bb6 Bb8 Bc7 Rb1 Bc5 Rc1 Qcd2 Rc4 Qdd1 Rd4 Qc1 Rd8 Qcc2 Rf8 Bc4+
R2bR3/bbb4P/pk2r3/R1bnn3/b2Q2pQ/3rN1B1/1rN1q1Bb/6K1 w - - 0 1 illegal: No possible last move
q3RB1q/QrNb4/n1B3Q1/p7/1b2Pkb1/b2r1p2/N1N3K1/nR2qr1n w - - 0 1 illegal: No possible last move
Nn1b2k1/3BQqbq/rQK1np2/R5Nr/1rN1n3/nb3p2/R1P5/6Bq w - - 0 1 illegal: No possible last move
2brqr2/2KB4/1N1rb3/3bRQnR/Bn1k4/b2p2Pb/N1p3Br/2Q4r w - - 0 1 legal: proof: c4 c5 b4 e5 d4 cxd4 h4 a5 f4 exf4 h5 axb4 h6 gxh6 Be3 h5 Bd2 h4 Bc3 bxc3 Kf2 Ke7 Kf3 Ke6 Ke4 b5 a4 d5+ Kf3 Ke5 e4 f5 a5 h5 c5 c2 a6 h3 a7 b4 g3 b3 c6 d3 c7 d4 Ra6 b2 Bg2 h2 Bh3 h4 Qe1 d2 Na3 b1B Qc1 d1R Rg6 Nf6 Ne2 Nh7 Bg4 h3 Qd2 Nc6 Rf6 Ba2 Qe1 Nb4 Nc1 Bae6 Na2 Qe8 Rf7 Rb8 a8B Bd6 Re7 Ng5+ Ke2 Rd3 Qc1 f3+ Kf2 f4 Nc4+ Kf6 Nb6 Ke5 Bd5 Rd1 Bc6 Rf8 Bd7 d3 Bf5 Kd4 e5 Rg1 Be4 Rg2+ Ke1 f2+ Kd2 f3 Bb7 Kc5 Kc3 f1R Bd5 f2 B5c6 Bg8 e6 Rf6 Kb3 Kd4 Ka4 Rg6 Ka5 Rh6 Rg1 h1B Bf3 Rh2 Bg2 Bc5 Rh7 Bf7 e7 Rd6 Rh5 Be6 Ba4 Nd5 Bd7 Ba3 Kb5 Nb4 Ka5 Rd1 Re1 f1B Re5 Rd2 Kb5 Rf2 Ka5 Rf8 Ba4 Ba6 c8Q Ra8 Qd7 Rd8 Qb5 Bac8 Qd7 Qf7 e8B Qg6 Qh7 Qf7 Bed7 Qe8 Ba8 Bhd5 Qf5 Rf2 B8c6 h2 Bb7 h1R Bbc6 Bc4 Bg2 Bcd5 Nc4 Bc6 Kb6 Bcd5+ Kc7 Re2 Nb6 Rd2 Be4 Bh3 Bf3 Rdh2 Be4 Nf7 Bg2 Ng5
3RR1q1/r5k1/N1qN1rr1/1Bp3rq/Q5Nb/Pbp1rr2/KQ1B2n1/3n4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 f5 Kd2 Kf7 Kc2 c5 Kb2 h5 g4 b5 e4 b3 a3 h3 d5 b4 d6 h2 d7 f3 e5 f2 g5 h4 g6+ Kg7 e6 f4 e7 h3 e8Q f3 Qe3 Be7 Qed4+ Nf6 Be3 c3+ Kc1 b2+ Kc2 b3+ Kd3 Ra7 Kc4 Rh5 Qe4 Na6 Be2 f1R Qh4 f2 Qdd4 Rg5 Ra2 Nb4 Bf3 Nd3 Bc6 Ne1 Qd2 Ng2 Nf3 Nd5 Ne5 Qg8 d8N Bf5 Bb5 Bc2 Ng4 Re1 Rf1 h1Q Nc6 h2 Nb4 Re2 Rc1 f1R Rd1 Rf6 Na6 Bd8 Bf4 Re3 Qc1 Be7 Nd2 b1R Ne4 b2 Nd6 Ra1 Rd2 b1R Qb2 Rg1 Rd3 Rf3 Bd2 Rae1 Ra1 Ree3 Re1 Ndf4+ Rd5 Nh3 Re2 Nf2 Re1 Be4 Kb3 Bc2+ Ka2 Bd8 Ne5 Nd1 Qa4 Nh4 Ng4 Qg2 Re2 h1Q Nc4 Be7 Rd8 Qgh2 Re1 Ng2 Re2 Qd6 Re1 Qc6 Re2 Kh8 g7+ Kh7 Re1 Qh5 Re2 Bd6 Re1 Bg3 Re2 Bh4 Re1 Qh8 Nd6 Kg6 g8Q+ Qg7 Qgb3 Qg8 Nh6 Kg7 Re2 Rgf1 Re1 Rfg6 Ng4 Rff6 Re2 R1f3 Re1 Rd3 Re5 Rde3 Ree8 Bxb3+
R4Nrn/1qBrkpNQ/1B3b2/1K2bnnR/5pb1/4n3/QP5b/r4nQ1 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 h5 Ra2 exf6 Ra3 f5 Ra1 f4 g4 hxg4 c3 a3 Nd2 a2 Bg2 Na6 Be4 Nb8 Bb1 axb1R h4 a5 e4 d5 Ke2 g5 Kd3 g3 e5 g4 h5 a4 h6 a3 c4 a2 e6 g2 e7 g3 h7 Nf6 c5 Ne4 c6 Qd7 c7 Rg8 h8B Bg7 Rh3 Ra7 Qa4 Nc6 Rh6 Ne5+ Kc2 d3+ Kb3 d4 Kb4 Ng5 Ne2 g1B Qa3 g2 Qa4 Ng6 Nc3 Bh2 Nde4 g1B Nd5 d2 Ng3 d1N Nb6 d3 Nh5 B1d4 Be3 d2 Qa6 Qd5 Nd7 Rc1 Nf8 Bg4 Ka4 Bc3 Bb6 Qa8 Rb1 a1N Kb5 Nc2 Ra1 Qc8 Ra4 Ra1 Ra2 Bgd4 Be5 Nh8 Bd6 Bf6 Qa3 Qd8 c8Q Rb7 Qc4 Qa8 Qd3 Rd7 Bdc7 Qb7 Qh7 Bcd4 Qc5 Bde5 Qg1 Nd4+ Kb4 Qc8 Ra8 Nf5 Kb5 Nde3 Ng6 Rd4 Ng7+ Kd7 Rh5 Nf1 Rh3 d1N Rh5 Qb8 Nf8+ Kc8 Kc5 Nde3 e8Q+ Rd8 Qa4 Rd7 Ra6 Qa8 Kb5 Qb7 Qa2 Rd2 Ng6 Kd7 Nf8+ Ke7 Ra8 Rd7
Kr2B1Q1/b1rrn1qb/r1RqN1np/5B2/2r2b1P/2k4N/6Qp/R1b2B2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 h3 g5 a3 bxa3 Bf4 g4 Bh2 g3 Bb5 gxh2 Bc4 Ra7 Bf1 Ra8 Kd2 Kf7 g4 Kf6 f4 b5 c4 e5 c5 d5 h4 d3 Kc3 h6 Kb4 a2 f5 e3 Qb3 e2 Na3 e1B+ Qc3 d4 Bg2 e4 g5+ Ke5 f6 d2 f7 d1R g6 e3 g7 e2 Bd5 Bf2 Rc1 e1B Be6 a1Q Rb1 Bd2 Rb3 Bc1 Ne2 Ne7 g8B Rh7 c6 Nd7 c7 Ra6 Qd2 d3 Bh3 Ba7 Ng1 Kd4 Rb1 Ne5 Qg2 Bf5 c8B d2 Nc2+ Kd3 Be6 N5g6 Nd4 Re1 Rb2 d1R Rc2 Re4 Rc6 Bg7 f8Q Be5 Bd7 Bef4 Be8 Rf7 Bh7 Qd6+ Kb3 b4 Ne6 Rc4 Qg8 Be4 Bf5 Qg7 Nh3 Rb6 Ka4 b3+ Ka5 b2 Rg1 b1R Re1 Rb8 Ka6 Kc3 Rh1 Ra8 Rf1 Ra1+ Kb7 Ra6 Rg1 Rc8 Rh1 Rc7+ Ka8 Rf8 Rf1 Qa3 Rg1 Rdd7 Re1 Bc2 Bd3 Qd6 Bf1 Nh8 Bf5 Bb1 Bg4 Bh7 Bf5 Nhg6 Rd1 Ba3 Ra1 Bac1 Bb1 Rf5 Bc2 Rb5 Bf5 Rb8#
1B1bQ3/b3nr2/qBr1P2N/Q1b2bq1/p1K5/1NQ2p2/4nq1R/2R1q1kb w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Kd2 f3 Ra2 g3 Bg2 fxg2 Ra1 cxd6 Ke1 d5 Ra3 d4 Ra2 Qh4 Ra1 Qd8 Kd2 Ke7 Kd3 Kf6 c4 Kf5 h4 Kg4 b4 a5 c5 d5 b5 f5 h5 g5 c6 a3 c7 f4 b6 a2 h6 Bc5 b7 Ra6 h7 Rc6 Rh2 Bf5+ Kd2 d3 Kc3 d4+ Kb3 d2 c8Q d3 Ba3 Ne7 Rh6 Rf8 h8Q Rf7 Qe1 d1B+ Kc4 d2 e4 Bf3 e5 d1Q Qf2 Qe1 Ne2 g1B e6 Bh1 Qe3 f3 Nd2 g2 Nc3 Kg3 Nb5 g4 Rb1 a1Q Qb3 Kf2 Nc7 g3 Qhc3 Bh2 Qcb4 g1B Ne8 g2 Ng7 Bc7 Q3c3 Qg8 Qb6 Bd8 Nb3 a4 Qa7 Qb2 Rc1 Qbe2+ Qd3 Kf1 Rh2 Bge3 Qb6 g1Q Qa5 Qf2 Qd7 Ba7+ Bc5 Kg1 Qe8 Qe2f1 Kb5 Qf1e2 Bb6 Bc5 Kc4 Qe2f1 Nh5 Qg5 Nf6 Ng6 Ng8 Nf4 Nh6 Ne2 Qdd2 Nd7 b8B Nf6 Qc2 Nd5 Qd3 Ne7 Qe3 Qd1 Qec3 Qf1e1 Qcb4 Qd7 Qd2 Qb7 Qdc3 Qa6+
3kNb2/Pr4bb/5p2/5b1K/1R2R1NQ/NpB3nb/1n1nBq1n/2q3Qr w - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 h4 g5 b5 gxh4 b6 axb6 c5 bxc5 Qc2 c4 Qd1 c3 Kf2 h5 Kf3 b5 g4 d5 a4 d3 e4 h3 e5 h4 e6 d4 g5 c2 Kg4 f3 g6 h2 a5 f6 a6 h3 a7 f2 g7 d2 Ra2 d3 Ra5 b4 Qf3 d1B Rc5 d2 Na3 b3 Rh5 Qd4+ Kg3 Nh6 g8N Nd7 e7 Ne5 Qe4 Bdg4 Kh4 d1N Bg5 c1B Bc4 f1N Be2 Nb2 Bd1 Rb8 Nf3 Bcf5 Bd2 Nec4 Bc3 Ncd2 Be2 Rb7 Ne5 Qc5 Rg1 h1Q Nec4 h2 Nd6+ Kd7 Rg2 Bh3 Ne8 Ng4 Nh6 Qf2+ Rg3 Bh7 Rb5 Qhg1 Rb4 h1B Qe3 B1e4 Kh5 Ngh2 Rg4 Bef5 Rge4 Qh1 Ng4 Bg7 Nd6 Kc7 e8Q Bf8 Qb5 Kd8 Qa5+ Kd7 Qh6 Rg8 Bd1 Ng3+ Kh4 Rg7 Nac4 Nb1 Qa1 Kd8 Be2 Rgd7 Nb5 Rd1 Qh5 Bch6 Ncd6 Bhg7 Ne8 Nd2 Na3 Rc1 Qh6 Qd1 Qg5 Qc2 Qb1 Rh1 Qg1 Ngf1+ Kh5 Qc1 Qh4 Ng3+
1N2R3/3rr1bQ/8/K1k2br1/Rn1b1P2/5rpp/1bBQn2B/1qqn1NQ1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 e4 gxh4 g3 hxg3 e5 a5 e6 axb4 Bb5 fxe6 Bc4 e5 Bf1 e4 Kd2 h5 f4 d5 a4 Kd7 c4 Kc6 a5 b5 c5 e5 a6 b3 a7 b2 Bc4 h4 Ba2 b4 Kc2 b3+ Kd2 h3 Qg4 e3+ Kd3 e4+ Ke2 d3+ Ke1 e2 Kd2 e1B+ Ke3 d2 Kd4 d1N Rh2 e3 Qh4 e2 Nd2 b1R Kd3 b2 Qh5 d4 Kc4 d3 Kb4 Rh7 Rg2 Bg7 Qh4 Ne7 Nf3 Bf5 Bb3 Qc7 Bc2 Bf2 Nf1 d2 Ra4 e1B Nd4+ Kd5 c6 Na6+ Kb5 Rg8 a8Q Nb4 Qa5 Qc8 c7 Nec6 Rg1 Ra1 Qb6 b1Q Rg2 Bg1 Re2 Ra3 Re8 Rf3 Qa7 Bh8 Qh6 Re7 Qh7 Rg5 Qa5 Bg7 Qb6 Nb8 Nc6 B1d4 Ka5 Bb2 Qg1 Bf2 Qh4 Kc5 Qh7 Nd7 Nb8 Nf8 Nh2 Ne6 Nf1 Bbe5 Ba3 Nd4 Bb2 Ne2 Bd4+ Kd5 Bb6 Bb2 Ba7 Bfd4 Bb6 Qb7 c8Q Qc1 Qc4+ Kd6 Qc3 Qe4 Bb3 Qeb1 Bc2 Nf2 Qe3 d1R Ba7 Rd3 Qd2 Nd1 Qg2 Bdc3 Bg1 Bcd4 Bh2 Kc5 Qf2 Be3 Qg2 Rdd7 Qg1 Bed4
B2qqbr1/B2R3Q/3Q1NRq/r2br1P1/p5b1/6R1/K3np2/2brnkN1 w - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 h4 g5 f4 gxh4 c3 dxc3 Bd2 exf4 Be3 Bb4 Bc1 Bf8 e4 Ke7 g4 Ke6 b4 Ke5 b5 a5 g5 h5 b6 d5 b7 f5 Ra2 c2 Kd2 Kd4 e5 h3 e6 h2 e7 a3 e8R a4 Re2 f3 Bg2 f4 Re8 f2 Nh3 f1R Bf3 h4 Qe1 Nd7 b8Q Ne5 Qb7 Nf6 Bg2 f3 Qb3 f2 Nc3 Rg8 Ra1 a2 Re6 Nf3+ Ke2 Nh5 Re7 Ra5 Rg7 Bg4 Bf4 c1B Kd1 Kd3 Rg1 h1Q Be3 d4 Qf7 Ng3 Qb7 Ne2 Rb1 a1Q Rb6 Qa2 Rh7 Qe6 Ne4 Qee8 Rd7 Qh2 Qa7 Qd6 Bh1 Qh6 Rg3 Rg1 Qf1 Ne1 Qg2 Rf1 Ng1 h3 Rg6 h2 Qb8 Bb4 Qh3 Bf8 Bf3 h1B Nf6 Bg2 Ba8 Bd5 Nf3 Rh1 Qd6 Rf1 Qh4 Rh1 Ng1 Rh3 Rg2 Rf3 Qh5 Rf5 Rg3 Re5 Qh1 Kc3 Qh3 d3 Ba7 Kc4 Qh1 d2 Qh3 Nd3 Kc2 d1R Kb1 Ne1 Be3 Kd3 Ba7+ Kd2 Qh4 Nc2 Qh3 Ke1 Qh2 Kf1 Qh5 Qg7 Qh7 Ne1 Ka1 Qh6 Kb1 Bdf3 Ka2 Bd5+
5RRq/4B3/r1N3Qb/1N1P3Q/kr1nprb1/2K5/n1p3bB/nbN1nq2 w - - 0 1 illegal: No possible last move
1Q1b4/n1rp2N1/n3pN2/2r1q1B1/3r1q2/q2QRbP1/q1n2Rr1/1KB2B1k w - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 h5 c5 b5 g3 e3 c6 Ke4 f5 a2 f6 e2 f7 e1Q c7 b4 Bb5 b3+ Kb2 d3 Bf4 h3 Be5 e6 Kc1 h4 Na3 h2 Ba6 d2+ Kb2 h3 Bf4 Be7 f8B Rh5 Bg5 Ra7 Nf3 Bb7 c8Q Qa5 Nb1 Qa3+ Kc3 b2+ Kc2 Bd8 Qc1 d1R Qd2 Ne7 Bg7 Nec6 Qb4+ Rd4 Rf1 h1Q Be7 h2 Rf2 Rc5+ Qc4 Qhf1 Bgf8 h1R Bh6 Rg1 Beg5 Rg2 Nh4 Qea5 Bb5 Na6 Nf5 Ba8 Ng7 Rc7 Qb8 Na7 Bc1 Bc6 Bhg5 Qae1 Rd2 Kf3 Nc3 Qe5 Nd5 Qf2 Nf6 b1Q+ Kd1 Qfe3 Qd3 Qbb2 Rb1 a1N Bc4 Qba2 Rb3 Nc2 Re2 Rf2 Rb2 Kg2 Bb5 Q3e4 Re3 Kh1 Bc4 Na1 Rc2 Rg2 Rf2 Nc2 Bb5 Qad5 Bc4 Q4f4 Kd2 Qa2 Kc3 Qa4 Kb2 Qa3+ Kb1 Ba8 Qd2 Bb7 Bf1 Qc4 Qe2 Bf3 Qd3 Qca2#
3rkb2/1N2B1q1/p2b1b1B/1p5n/q1Q2Bbq/K1R3nb/p2P1Q1R/1N5r w - - 0 1 illegal: No possible last move
1Rb1q3/2p2B1Q/r2N1Qnn/ppRrQNb1/2B2q2/K2r2P1/1q4n1/2n3k1 w - - 0 1 illegal: No possible last move
2b1n2Q/2R5/b1QK2B1/B1P3bN/1p1br3/R3q1R1/1kpbnp1b/rq2N3 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 cxb4 c4 bxa4 g4 h5 f5 hxg4 f6 d5 c5 exf6 Qc2 f5 Qd3 f4 Qc4 dxc4 Kf2 Ke7 d4 Ke6 e4 a5 h4 f5 d5+ Ke5 d6 Kd4 e5 g5 d7 c3 e6 a3 h5 c2 e7 g3+ Kf3 g2 e8R g4+ Kf2 f3 Kg3 f4+ Kf2 a2 h6 a4 h7 a3 Rh4 g3+ Ke1 f2+ Ke2 Nf6 Kf3 Be7 Nd2 Kc3 Ba6 f1B Rh6 Nc6 Rf8 Qe8 Nh3 g1B d8Q g2 Qd7 Bd4 Rh5 g1B Rg8 Bh2 Rg3 Be3 Bb7 Ba6 Re5 Rg8 h8Q Rg4 Re4 Bd8 Re7 Rh4 Rh7 Qe7 Rhg7 Ne8 Qe6 Rg4 Ke4 f3+ Kd5 f2 Nf4 Nd4 Nh5 Ne2 Qc6 Re4 Nf3 Bd2 Bb2+ Kb3 Be5 Qg5 Rc7 Qe3 Ne1 Bg5 Bf6 Ra7 Bd8 Ra8 Rd1 a1B Rc1 Bd4 Ra1 Ra7 Ba8 a2 Bb7 Bf5 Bc8 Bh3 Bf5 Kb2 Bh7 Bhc8 Bg6 Ng7 Kd6 Ra8 Rd1 a1Q Rc1 Qa2 Ra1 Qb1 Ra3 Bc4 Rd3 Ra1 Ra3 B4a6 Rf7 Bh3 Ba5 Bhc8 Rc7 Ne8+
2bq3K/bpn5/1nNRQ1p1/1nbRb3/2kPrn1B/1p2BBQ1/r6r/5N2 w - - 0 1 illegal: No possible last move
qb2B3/k1b2p2/1N3rR1/Pr1bn2n/R1B4K/N1p1rQ1p/1Q3q1b/5r1Q w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Ba3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 Kd7 d4 Kc6 e4 Kb6 g4 h5 g5 c5 e5 c3 d5 c2 d6 c1B e6 f3 d7 a2 e7 c4 e8B h3 Kg3 h2 a5+ Ka7 g6 b5 g7 h4+ Kg4 h3 Qe1 b4 Kg3 b3 Qd2 b2 Ne2 f2 Qc3 Bb7 Nd4 Rh6 Qb4 Nf6 g8Q Nh5+ Kg4 Rf6 Nb3 Bd5 Be2 f1R Qa4 Nc6 Qb4 Ne5+ Kh4 Bf4 Qc3 Qb6 d8Q Qf2+ Qgg3 Bd6 Rg1 h1Q N3d2 Bb8 Na3 b1R Qb2 Rbe1 Bd3 Re3 Qd6 Bc7 Qc6 Rb8 Rg2 Rb5 Be2 Qfg1 Qf3 Bh2 Rg6 Qgg2 Nb3 Bb8 Nc5 Qhg1 Na4 Q1f2+ Rg3 Qh1 Nb6 Qhg2 Rd1 a1B Rd4 c3 Ra4 Bc7 Qc2 Bb2 Bc4 Bc1 Qd2 Re2 Qb2 Bf4 Qe6 Re3 Qf5 Nc6 Qfb1 Bb8 Qbd1 Bfc7 Qe1 Ne5 Qec1 Qc2 Rg6 Qf5 Qca1 Qc8 Qac1 Qb7 Qcb1 Qa8 Qbe4 Qc2 Qh1 Qe2 Qef3 Qf2+
1B5k/b2B3N/1pnnqp1Q/1b3Q1K/Pq2p2B/1Nn1R2b/R5pr/3q3r w - - 0 1 legal: proof: d4 h5 b4 c5 g4 cxd4 b5 hxg4 e3 dxe3 b6 exf2+ Kd2 axb6 Be2 b5 Bf1 b4 Ke2 e5 c4 g5 h4 d5 a4 e4 h5 b3 c5 b2 h6 g3 h7 f6 c6 Kf7 c7 Kg7 Nh3 g4 Ra3 g2 Ng1 d4 Rd3 g3 Bf4 Qd6 Rh2 Bh3 c8Q Qb4 Nd2 b1N Ngf3 g1Q Qf5 Nc6 Re3 Nh6 Qc1 Nf7 Ng5 Bc5 Bb8 Nd6 Nb3 Nc3+ Kd2 Qh1 Bb5 f1B Ke1 d3 Ra2 g2 Kf2 d2 Kg3 d1Q Kh4 Qd5 Kh5 Ba7 Qd2 b6 Qc1 Na5 Bd7 Bb5 Qd2 Nc6 Qc1 Rc8 h8B+ Kg8 Nh7 Qe6 Bg7 Qd1+ Qg4 Rf8 Bh6+ Kh8 Bg5 Rg8 Bh4 Rg5+ Kh6 Rf5 Qd2 Rf1 Qf5 Rh1 Kg6 Qe1 Kh5 Qb1 Rf3 Qd1 Qh6 Rh2 Bc7 Rg8 Bb8 Rg4 Re3 Rf4+ Qg4 Rf1 Qf3 Rfh1 Qg4 Qf1 Qf5 Qd1+
K6b/1pp2Rq1/1n1rr3/P4B2/5r1p/2nN2NR/Q1bb1b1p/BQb1N1k1 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 fxe4 h6 gxh6 Qe2 h5 Qd3 h4 Qa3 bxa3 Ke2 Kf7 Ke3 Kg6 f4 Kh5 d4 Kg4 d5 Kg3 Kd4 Kf2 g4 h5 a5 c3 f5 a2 d6 e5+ Kd5 e3 g5 h3 g6 c2 g7 e2 f6 e1B f7 e4 d7 e3 Ne2 h4 Nd2 Qg5+ Ke6 Qg1 Nf3 Bd2 Bb2 c1B Ng3 e2 Ne1 Nf6 g8Q Bc5 f8N Ne4 Ng6 Nc3 Nf4 Rh6+ Qg6 Bb6 Ke7 Qg2 d8Q Bf5 Qd5 Bc2 Kd8 h2 Kc8 Qg1 Bh3 Ra6 Qgd3 Nd7 Bf5 Rf6 Rb1 a1B Qa2 Bc5 Qe4 Nb6+ Kb8 Nba4 Qb4 Rad6 Qb5 Nb6 Nfd3+ Ke3 Ka7 Qg2 Rf1 Rfe6 Nf3 e1R Rf2 Rf1 Nfe1 Ne4 Be5 Nc3 Rb3 Qg1 Ra3 Qg2 Qbb1 Qg1 Ne2 Qg7 Ng3 Bd4 Bg6 Bab2 Rf7 Rf4 Bf5 Bc5 Nb4 Kf2 Nbd3+ Kg1 Kb8 Ne2 Ka7 Bbd4 Kb8 Bf2 Ba1 Bcd4 Ka7 Nc3 Kb8 Nc4 Ka8 Nb6+ Ka7 Qf8 Nb4 Bfe3 Nh5 Nca4 Rb3 Bf2 Rh3 Nc3 Nbd3 Qh6 Ng3 Bh8 Kb8 Qg7 Ka7 Nbd5+ Ka8 Nb6+
Q1nB2Rb/1b2R2N/r6N/1b1pnp2/B3Qr1K/3Pnp2/r3p3/Q2nqk2 w - - 0 1 illegal: No possible last move
5QR1/1N3P2/3qrrnQ/1K2bp1B/pB1nRn2/prR1b1k1/2N1b1p1/b7 w - - 0 1 illegal: No possible last move
3r3N/4pKN1/BBnRR3/p3pp1Q/2P2nq1/1b4b1/2QB1nnr/b2r3k w - - 0 1 legal: proof: d4 b5 Kd2 g5 h4 gxh4 a4 bxa4 e4 Ba6 d5 Bc8 d6 cxd6 f4 Qb6 e5 dxe5 f5 Qf2+ Kd3 Qxf5+ Kc3 Qf2 Kc4 a5 Kd5 h5 g4 f5 b4 Kf7 c3 Kf6 b5 a3 b6 a2 b7 h3 Rh2 h4 Rg2 h2 Qf3 h1R Bf4 h3 Bd2 h2 Bc4 Nc6 b8B Qh4 Bf1 Bh6 Ne2 Bf4 Bc7 Bg3 Nf4 Kg5 Ba6 Rd1 Na3 h1N Nc4 Nf2 Bb6 d6 Rb1 a1B Qe4 Bd7 Qc2 Rd8 Rb2 Qh3 Ne6+ Kh4 g5 Qg4 g6 Kh3 g7 Rh6 Rg1 Kh2 Re1 Rh5 Re4 Rh8 Rd4 Kh1 Rb1 Rh2 Rc1 Nh6 g8Q Nf7 Qh7 Nh8 Qh5 Ng6 Ng7 Be8 Ke6 d5 Rd3 d4 Nd6 Bd7+ Kf7 Nf4 Rf3 d3 c4 Nb8 Rb1 Ba4 Re3 Nc6 Re4 N2h3 Rd4 Ng2 Rb5 Bb3 Rbd5 Qg5 Rg4 Qh4 Rg6 Nhf4 Re6 Qh3 Ne4 Qh4 Ng5 Qg4 Rdd6 Rb1 Bb4 d2 Bc3 d1N Bd2 Rh4 Nf3 Rh3 Nh4 Nf2 Ng6 Rh2 Nh8 Rd1
n6b/B2np3/bQp1pR2/2Qn2PN/kB1Q1n1r/2pr3p/3N2Rn/K3q3 w - - 0 1 legal: proof: c4 a5 h4 g5 b4 axb4 e4 gxh4 a3 d5 e5 dxc4 e6 c3 Bc4 fxe6 Ba2 b3 Rh3 bxa2 Rh2 Kd7 Rh1 Ke8 f4 Kd7 d4 Kc6 g4 Kb5 g5 h5 d5 c6 d6 h3 f5 h4 d7 h2 f6 h3 f7 Rh4 Bb2 Na6 Qd4 Bg7 Kd1 Nf6 Kc2 Nd5 f8Q Bh8 Qff2 Nac7 a4+ Ka5 Qc5+ b5 Nd2 Ba6 Rf1 a1N+ Kb1 Nb3 Qfd4 Rc8 Ka2 Na8 Ne2 Rb8 Rhg1 h1N Nf4 Ng3 Bc1 Ne2 Nh5 Nef4 Rg2 Qc7 Ba3 Qe5 Rf3 Qe1 Rff2 Rd8 Rf1 Ne2 Rf7 Nef4 Rf6 Rc8 d8B+ Rc7 Qd6 b4 Q6e5 Nc5 Qee3 Qg3 Ka1 b3 Qg1 Qf2 Qb1 Qe1 Bb4+ Kb6 a5+ Kb5 Re2 Rb7 Rg2 Nd7 Bb6 Ka4 Ba7 Rb8 Qc5 Rd8 Qd4 Bb5 a6 b2+ Ka2 Bf1 Qf5 b1N Ka1 Nb8 Qfe5 Rd6 Qc5 Nd7 Qed4 Be2 Bb8 Bb5 a7 Ba6 Qb6 Ne3 Qdc5 Rd3 Qd4 Ned5 Qbc5 Nab6 a8Q Na3+ Nb1 Nb5 Qf2 Nd4 Qb7 Rd2 Ba7 Nf3 Qfd4 Rd3 Qc7 Na8 Q7b6 Qe3 Nd2 Nh2 Nb3 Qe2 Nd2 Qe1+
2Q3Nr/1Q1p1rPq/1B1K3p/6pn/Bq1bnk2/rbp2NpB/1R3R2/1r6 w - - 0 1 illegal: No proof kernel
3bnn1R/3r2q1/Q4r1r/r1bB1r2/NKbb1r2/3R4/k1N1bPNN/3B4 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 c5 d4 cxd4 b5 f5 Bd2 fxe4 Bb4 axb4 a5 b6 Qf3 bxa5 Qd1 a4 Rh3 b3 Rh1 b2 Na3 b1Q Nxb1 a3 Kd2 Kf7 g4 Ke6 c4 d5 g5 h5 b6 d3 Kc3 h3 c5 d4+ Kb4 Kd5 c6 e5+ Kb5 a2 b7 h4 c7 h2 g6 h3 g7 d2 Qg4 d1B Qg5 d3 Na3 e3 Ne2 d2 Qf5 Rh4 Qb1 e4 Bg2 Qg5 Qc2 Bc5 Bf1 Nd7 b8N Nf8 Qb1 Nf6 g8B+ Be6 c8N Ne8 Ng3 e2 Qb4 e1R Qa4 e3 Ne2 Qg7 Nd4 e2 Nbc6 Rf4 Qa7 Rf6 Rb1 a1B Rg1 h1R Rb4 h2 Rg3 Rg1 Nc4 h1R Ra3 Rg5 Nc2 Rgf5 N6e5 Rh4 Rbb3 Rhf4 Ng4 Bf7 Bh3 Rh1 Rb1 e1B Nc4e3+ Ke6 Ng2 Kd5 Ka5 Kc4 Rg3 Bf3 Nb6+ Kc3 Rc1 Kb3 Na4 d1R+ Kb5 Rdd5 Rd1 Be6 Rd3+ Ka2 Qb7 Rd7 Qc6 Bb3 Bd5 Ba5 Qc8 Be3 Qc4 Bd8 Kb4 Bd1 Rf3 Ra5 Rg3 Bad4 Qa6 Bc4 Rf3 Ba1 Rg3 Ba7 Rge3 Bb2 Re6 Rff7 Rh6 R7f6 Rh8 Bbd4 Rb3 Re1 Rd3 Rh6 Nh2 Ree6 Bg4 Ref6 Bh3 Bh5 Bg4 Bab6 Bd1 Be2 Nge1 Ba7 Ng2 Bac5+
4q3/1qp2QB1/4NPn1/knn1b3/r1b4R/q3Nb2/2R1qb2/B3RbKR w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 fxe4 c5 axb4 c6 dxc6 Qb3 c5 Qd1 c4 a4 Ra6 a5 Rb6 axb6 gxh4 Be2 Nd7 Bg4 Nb8 Bd7+ Kf7 Bc6 Bd7 Bb5 Bc8 Ba6 bxa6 Ra2 a5 Ra1 Ke8 Kf1 Kd7 d4 Kc6 g4 Kb5 f4 e5 b7 h5 f5 b3 g5 a4 f6 c3 g6 b2 d5 h3 d6 h4 g7 c2 d7 h2 Qd3+ Ka5 Qa3 h3 Qf3 e3 Qf2 a3 Ra2 e4 Ne2 Ne7 g8R Qe8 d8B Be6 Qh4 Nd7 b8R Nc5 Qf4 Ng6 Be7 Rh4 Rd8 Bc4 Ra1 a2 Nd2 b1Q Qh6 Qb7 Ba3 c1N Rg1 h1B Rg7 h2 Bd6 Bg2+ Ke1 h1B Nf4 e2 Kf2 Bf1 Qh5 Bf3 Rh7 Nb3 Ne6 Nd4 Bb2 Nb5 Re1 a1Q Rh1 e3+ Kg1 Qa3 Ba1 Be7 Bf4 Bd6 Bh6 Be5 Bg7 Re4 Rd7 Rd4 Re7 Rh4 Rc1 e1B Rc2 e2 Rh8 B1g3 Rh6 Nf8 Qf7 e1Q Rh5 Ng6 Rh8 Bh3+ Nf1 Qe2 Ne3 Bf1 Rh6 Bcd5 Rh7 Ra4 R7h4 Bb3 Rd7 Ba2 Rd1 Bc4 Re1 Bf2#
B3b1R1/3Pppn1/1nN2rNb/2bKn3/1N1N3B/3b3p/3Qn1rk/1R1q4 w - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 b5 axb5 g5 b4 gxh4 e4 a5 f4 axb4 Qf3 Qd4 Kd1 Bg4 Kc2 Qe3 e5 Qxf4 Qd1 Qf2 e6 Bxe6 Bb2 Bg4 Bc1 Be2 g4 Kd7 d4 Kd6 d5 Ke5 g5 c5 g6 h5 b6 b3+ Kc3 h3 g7 h4 d6 h2 b7 b2 Ra4 h3 Qc2 Bd3 Ra2 Qd4+ Kd2 Kf4 Be2 Kg3 Qb3 c3+ Ke1 c2 Kd2 c4 Nc3 Nd7 b8N Nb6 Nb5 Ra6 Nc6 Nh6 g8N Nf5 Nf6 Rg8 Qc3 Ng7 Nd5 b1N+ Ke1 Nd2 Nf3 Qg4 Nfe5 Nf3+ Kf1 Qh5 Ng6 Ne5 Bg5 c1B Nbd4 Be3 Qd2 c3 Ndb4 c2 Ra1 c1N Rb1 Qf3+ Ke1 Qg4 Bf3 Ne2 Rf1 h1B Rg1+ Kh2 Bh4 Bg2 Kd1 Bf1 Be4 Bb5 Kc2 Bf2 Kb3 Qh5 Nd8 Be8 d7 Qg4 Ba8 Be3 Nd4c6 Bc5 Ne6 Qd4 Qc1 Qd2 Ned4 Qd1+ Qc2 Ne6 Rg3 Bh6 Rg1 Ng7 Rg3 Qc1 Qd2 Qd1+ Ndc2 Na4 Na5 Rf6 Nh8 Nh5 Nac6 Nb6 Rg1 Rf2 Rg4 Ng1 Kc3 Bc4 N2d4 Bd3 Rg3 Rg5 Rg4 Rf5 Rg8 Rg2 Ng6 Ng7 Qc2 Bb5 Qa2 Rf6 Qd2 Nec4 Kd3 Ne2 Ke4 Ne5 Nf8 Nc8 Kd5 Bd3 Ng6 Nb6+
3nR1rR/bbbq2q1/1B1q1NN1/3Nr2Q/K3P1n1/7r/1k1n1rn1/1N1r1B2 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kd2 Ke7 e4 Ke6 g4 Ke5 c4 f5 Kc2 d5 Kb3 b5 c5 h5 g5 h3 c6 f3 c7 b4 g6 h4 g7 f2 Bh6 h2 Be3 a2 Nd2 d3 Qc1 d4 Qc6 f4 Qa6 f3 Qb7 h3 Qb6 Nf6 g8N Ng4 Bh6 Bb7 c8N Ra5 Nf6 Nc6 Qa7 Bc5 Bg7 Qd7 Ne7 Nd8 Bh6 Rg8 Nb1 d2 Bb5 f1N Be2 d1R Bg7 f2 Qa6 d3 Qa7 Kd4 Qb8 d2 Ned5 Nfe3 Nb6 f1R Nc4 Ba7 Bf8 Rf2 Qg3 Re5 Ne8 Ng2 Kb2 b3 Ka3 b2 Qf3 Qg7 Nb6 Qd7 Nc3 b1N+ Kb3 Qd6 Bf1 Qd7 Qf7 Qd6 Nge2+ Kd3 Rg1 h1Q Ka4 Kc2 Nf6 h2 Qh5 Kb2 Nf4 Qd7+ Bb5 Qg7 Ng6 Qd7 Rf1 Qg1 Bc5 h1R Nbd5 Rh3 Bd4 Re1 Bb6 d1Q+ Kb4 Qd2 Ka4 Rd1 Re1 Qd6 Bf1 Qd3 Re2+ Nd2 Rc1 a1B Nb1 Qc3 Re3 Qcc7 Rg3 Qg7 Rc8 Qh2 Rgc3 Qf4 R3c7 Qf5 Re7 Qfe6 Re8 Qed7+ Bb5 Ka2 Ra8 Bc3 Rc8 Ba5 Rb8 Kb2 Rc8 Qf5 Bf1 Qfd7+ Rc6 Nb3 Ngf4 Re3 Bd4+ Rc3 Nh7 Qdh6 Bc5 Bc7 Bb6 Qf5 Rd6 Qhe6 Rc6 Qee7 Rh6 Qd6 Nhf6 Rh3 Rh8 Nd2 Ng6 Qfd7+
bn4B1/1q3nK1/2n1N1R1/NbbR1qq1/1rp2n2/2rn4/1NPN3Q/k4B1n w - - 0 1 legal: proof: f4 h5 e4 a5 b4 axb4 g4 hxg4 e5 d6 Bb2 dxe5 Bd4 exf4 Bf2 Ra4 Bh4 Ra8 Bg3 fxg3 Ke2 Kd7 Kd3 Kc6+ Ke4 Kc5 Ke5 g5 h4 f5 a4 b5 d3 g2 h5 b3 d4+ Kb4 h6 c5 d5 f4 h7 b2 d6 g3 d7 f3 a5 f2 a6 g4 a7 Nh6 Qe2 Nf7+ Ke6 Bb7 Nf3 g1N Ra3 g2 Nbd2 b1Q Qe3 g3 Ra5 Nh3 Nh2 g1N Qg5 Kc3 Ra3+ Kb2 Nb3 b4 Qe3 g2 Na5 b3 Bb5 f1B Ra1 Nf2 Be2 Nf3 Qe4 g1N Kf5 e5 Kg6 Nd4 Bh5 Bb5 Qg4 c4 Qd1 e4 Be2 e3 Bf1 e2 Qd2 e1N Nf3 Bc5 Kg7 Ned3 Rh6 Nh1 Qh2 Nge2 Nd2 Qg5+ Rg6 Nef4 d8N Ndc6 Ne6 Qf5 Ra4 Qc1 Rb4 Rd8 h8N Ka1 Ra4+ Ba3 Rb4 b2 Rb3 b1Q Rb4 Nh6 Nf7 Rd6 Rb3 Bc5 Ne5 Nf7 Rb2 Rd4 Rb4 Re4 Rb3 Re3 Rb2 Ne1 Nd3 Rg3 Rb4 Rf3 Nb2 Rc3 Rb3 Ned3 Rb4 Na6 Rb3 Rb8 Rb4 Ba8 Rb3 Ba4 Rb7 Bb5 Rd7 Ba4 Rd5 Rb4 Nb7 Nab8 Na5 Bb7 a8B Bb5 Bg2 Qg1 Bh3 Qgg5 Bf1 Qd1 Re5 Qf3 Rd5 B7a6 Bb7 Qfg2 Bc8 Bb7 Bd7 Ba8 Be8 Nfe5 Bf7 Qge4 Bg8 Nf7 Nf8 Qee7 Ne6 Qb7
3b2b1/1rq3Q1/BN2NRb1/k2nn3/rN4P1/1rrq2B1/6qp/1K1RqrN1 w - - 0 1 illegal: No possible last move
r3n1B1/2B1r2Q/nbkB3r/3n4/1PB2N2/6RN/pqR1nr1q/nb1q1K2 w - - 0 1 illegal: No possible last move
2q2Rq1/5n2/2B1b1qN/Q2rpn2/1r1b1b2/1n1NRPBN/b5bn/2NK1k2 w - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 g4 Kf7 c4 Kg6 g5 Kf5 g6 b5 g7 h5 c5 e5 c6 d5 c7 b4 Ra2 b3 Rb2 h3 Qd2 Kg4 Bb5 e3 Nf3 a2 Qb4 a1B Ng1 e2 Bc4 h4 Qc5 h2 Qe7 h3 Be3 d3 Ra2 d4 Bf7 b2 Qe8 Nh6 g8N Na6 Nc3 b1B Qa4 Rb8 Rb2 Nc5 Qb4 Be6 c8N Bba2 Kd2 e1N Qa4 Nf3+ Kd1 d2 Bg5 Rb4 Qd7 Nb3 Ke2 d1N Qb5 d3+ Kf1 d2 Ke2 Ne3 Bg6 Nef5 Rb1 Nf7 Bf4 Bh6 Nce7 Qc8 Bg3 Bf4 Qa5 Rh4 Re1 d1Q+ Kf1 Qd3+ Nce2 Qb1 Nc6 Bd4 Nc1 Rb5 Ke2 Rd5 Kd1 Qe4 Nge2 Qb1 Rhg1 h1Q Nb4 h2 Nh6+ Kh3 Rgf1 Kg2 Nd3 Qg1 Bh7 h1B Bg8 Qh2 Ng1 Rg4 Nh3 Qg1 Bh7 Nh2 Re3 Qbc2+ Ke1 Qg8 Bg6 Qcc8 Kd1 Nh8 Be8 Nf7 Bc6 Qg6 f3 Rh4 Kc2 Rg4 Rd1 Rh4 Rd2+ Kf1 Kd1 Qg2 Bf2 Q2g4 Bg3 Bg2 Rc2 Qgg8 Rc5 Q4g6 Rb5 Bg5 Rb8 Re4 Ra8 Bf4 Rb8 Bc5 Ra8 Rb4 Rb8 Bd4 Ra8 Qa6 Rf8 Qc8
1r1qqq2/1b1B1BN1/1P1brR1r/2b3rR/1k2n3/1q2Rrp1/1Kn5/1N1R1Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 Kd2 Ke7 Kc1 Kd6 e4 Kc5 h4 f5 c4 a5 h5 g5 e5 d5 h6 a3 b3 g2 h7 a2 e6 f4 e7 d3 e8B g3 Qc2 f3 Qd2 d4 Qc2 d2+ Kb2 d1R Bd3 g4 Rh5+ Kb4 c5 f2 c6 f1Q c7 a4 Nh3 g1B Ra5 g2 Bdg6 d3 Ra6 d2 Bb5 Re1 Na3 d1Q Qc1 Bb7 c8R Bd6 Rc5 Nf6 Bc6 Re6 Bf7 Ne4 Bce8 Nc6 Rc2 Nd4 Nc4 Rb8 Re2 Nc2 Nf4 Bgc5 Re3 g1R Nd2 g3 Rb1 a1R Nh5 Rg8 h8R Rg5 Bc6 Rh1 Ng7 Ra3 Bd7 Rhh6 Ra1 Qf5 Nb1 Qdd5 Qf1 Qc6 Bg8 Qff8 Bf7 Qcb6 Nc3 Qde8 Rd1 Qbd8 Nb1 Ra2+ Kc1 a3 Rc6 Ra1 Ra6 a2 Kb2 Rhf6 Rh5 Rf3 Nc3 Rc1 Nb1 Rh6 Rd5 Re1 Rd1 Be7 Rg6 Bed6 Rf6 a1Q+ Kc1 Qa4 Kb2 Ka5 b4+ Kb6 b5 Ka5 b6 Kb4 Rc3 Qb3+ Kc1 Nf2 Rd3 Re6 Re3 Qd5 Kb2 Ne4 Qh1 Qd3 Qf1 Qb3+
4nbBQ/1q2rBbP/2p5/1k2Nn2/qB2bR1R/1q1n2r1/b4NnK/1b1B4 w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 h5 g4 hxg4 b5 e5 b6 exf4 d3 cxd3 Ba3 axb6 Bb2 b5 Bc1 b4 Kf2 Kd7 Kg2 Kc6 e4 g5 a4 f5 h4 b5 h5 b3 h6 f3+ Kh2 f2 e5 f4 a5 b2 h7 g3+ Kg2 d2 a6 b4 e6 b3 e7 g4 e8B+ Nd7 a7 Qh4 Ra4 Bb7 Ne2 Nf6 Ra1 Rg8 Bf7 Kb5+ Bd5 Re8 a8B Nc5 Ng1+ Nd3 Ra7 Re7 Ra1 Ne8 Rh3 f3+ Kh1 g2+ Kh2 Rg5 Qe2 d1Q Be6 Be4 Bd2 c6 Ba5 Qc2 Nd2 b1B Bd7 b2 Nb3 Ba2 Bb4 b1B Nc5 Qb3 Qb2 Rg6 Be2 f1Q Qe5 f2 Nf3 g1N Bd1 Ne2 Qh8 Ng3 Be6 Nf5 Bd5 Qe1 Bb7 f1N+ Kg1 g3 Ne5 g2 Bg8 Bg7 Bc8 Rg3 Bce6 N1e3+ Kh2 Qec3 Bef7 Qcb2 Bdh5 Qg4 Rh4 Qgd1 Rf4 Qa4 Bg4 Qdb3 Bd1 Bf8 Ng4 Bg7 Nd7 Bf8 Nde5 Bg7 Bf3 Bf8 Nf2 g1B+ Kh1 Ng2 Bd1 Bc2 Rc1 Bcb1 Rc4 Bg7 Nfg4 Bd4 Kh2 Bf8 Nf2 Bc3 Neg4 Bcg7 Ne5 Qd4 Rh4 Qd7 Rf4 Qb7 Rh4 Bd5 Rcf4 Be4
1RR3B1/rR2NnPp/b1r4r/2b2Qn1/b1q4b/k3r1rB/1R2N2K/2n1q3 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kf2 Ke7 c4 Kd6 g4 Kc5 Kg2 Kb4 e4 d5 c5 f5 e5 b5 a5 h3+ Kh2 d3 c6 f3 e6 f4 g5 d4 g6 d2 c7 a2 g7 f2 a6 f3 e7 d3 e8B Nd7 a7 Ba6 c8R Nh6 Rc5 Nf6 Na3 Qc7+ Re5 Ne4 Bg6 Ng5 Kg3 h2 Qc1 d1N Bf7 d2 Bh3 f1Q Nb1 f2 Bfe6 Nc3 Bc4 d1B Na3 Ne2+ Kh4 Ba4 Bg8 Nhf7 Qd2+ Qc3 Bg2 Bc5 Qd6 Qb3 Re8 Qc4+ Be4 Qd3 Rb8 Qc4 Qd3 Qb1 Qg3 f1R Qg4 Rf6 Qf5 Rc6 Nc2+ Kb3 Nb4 Ka3 Nd5 b4 Kg4 b3 Rc8 Qbc1 Rb1 b2 Kh4 a1B Rb8 Ne6 Kh3 Qf1+ Bg2 Qf2 Rd1 b1R Rd2 Bf6 Rc8 Rb7 Rc2 Rab8 a8R Ra7 Bf1 Rb2 Rab8 Qe3+ Kg2 Rb3 Rd2 Bc3 Rc2 Be1 Rd2 Neg5 Rc2 Nd6 Bf7 Re8 Bg8 Ndf7 Rd2 Ree6 Ne7 Rh6 Rd7 Bh4 Rdb7 Qd2 Qf6 Re3 Qf5 Nc3+ Ne2 Na2 Rg1 Qdc1 Kh1 Qa1 Bh3 Qd1 Kg2 h1R Rf1 Rg1+ Kh2 Rgg3 Rh1 Qd2 Rhb1 Nc1 R1b2 Qe1
kr2rq1R/1Nn1N1K1/3Nq3/1B6/2qR2b1/1b1q1NQB/nr1Ppb1r/4n3 w - - 0 1 legal: proof: c4 a5 g4 d5 f4 dxc4 b4 axb4 e4 g5 e5 h6 Bb2 gxf4 g5 f6 g6 fxe5 Bd4 e4 Bf6 Rh7 Bh4 Rh8 Bg5 hxg5 Kf2 Kd7 a4 Kc6 h4 e5 a5 b5 a6 f3 Ke3 f2 g7 c3 h5 c2 a7 Kb7 h6 c1Q h7 c5 Qh5 c4 Nc3 g4 Rh2 g3 Bg2 f1Q Nb1 b3 Ra3 b2 Rh4 c3 Rb3 c2 Na3 b1B Qf7+ Ne7 g8B b4 Nf3 Ba2 Rh6 Na6 Ng1 Qce1+ Ne2 c1Q Rd3 b3 Re6 b2 Nc4 b1R Bh1 g2 Qf2 g1R Bf3 Rh1 Rd4 Rb2 Bg4 Nb4 Bh3 Bb3 Qg3 Rb8 a8N Rh2 Rh6 Bg4 Nab6 Na2 Nd7 Ka8 Nd6 Qc4 Nc5 Bg7 Rh4 Qff8 Ncb7 Bf6 Rh6 Bh4 Bd5 Qd7 Bc6 Qde6 Bb5 Qb1 Ng1 Re8 Bg2 Rb8 Nf3 Qbd3+ Kf2 Rg8 h8N Nd5 Ng6 Nc7 Rh8 Re8 Ne7 e3+ Kg1 e2 Kf2 Qh7 Ke3 e1N Bh3 e4 Ndf5 Rb8 Kf4 e3 Na5 e2 Nb7 Qeg6 Ke5 Qgh6 Nfd6 Qhd3 Qg1 Bf2 Qg2 Qd8 Qg3 Qhe3+ Kf6 Re8 Kg7 Qc8 Rh5 Q8e6 Rh6 Qf4 Rh8 Qf8+
2N2n2/4R3/3NrrBb/8/K3p3/1nkrPR1B/nr1nR1R1/rbq2Qrb w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 bxa3 g4 c5 g5 cxd4 g6 h5 Nf3 h4 Bf4 fxg6 Be5 g5 Bg3 hxg3 Ng1 g4 Kd2 Kf7 c4 Ke6 Kc2 Ke5 Kb3 b5 h4 d5 h5 g5 f3 b4 c5 a2 c6 g2 c7 d3 f4+ Kd4 f5 e5 h6 d2 f6 g3 h7 g4 f7 Qg5 Rh5 Nd7 Rh1 Ngf6 Qc1 d1N Qa3 Bb7 c8B Ra6 Qc1 Nc3 Rh6 Nfe4 Rh1 Nd2+ Kc2 b3+ Kb2 Rf6 Rh4 Bh6 Ka3 b2 Rh1 Re8 h8R Nf8 Bd7 Ree6 Nh3 g1R Rg8 g2 Nf4 g3 Rh2 Nb3 Nd2 b1B Qd1 Rh1 Bc8 g1R Ng6 g2 Nc4+ Qd2 Qe1 Qc1+ Kb4 Bc6 Nd6 Ba8 Ne7 Nd2 Rh3 Rh2 Re3 Rgh1 Bb7 g1R Nec8 Rhg2 Rf3 Rh3 Rf2 Rd3 Ka5 Rh2 Bh3 Rhg2 Qf1 Rh2 Ne8 Kc4 e3 d4 Rg4 Kb3 Ba6 Bh1 Rgg2 e4 Bc4+ Kc2 Ned6 Qb2 Bb5 Rg6 Ne8 Nh7 f8R Kb3 Nc7 Nf3 Nb6 Rd2 Rb8 d3 Nca8 Bc2 Re1 a1N Re8 Na2 Nc4 Nf8 Rg3 Kc3 Nd6 Rgf6 Nb6 Nb3+ Ka4 Rd1 Rg7 d2 Nbc8 Ra1 Ree7 d1R Be8 Qc1 Rg4 Rd2 Bg6 Bb1 Rg3 Rd3 Rg5 Ne5 Rf3 Rb2 Re2 Nc4 Rgg2 Ncd2
K2Nr3/PbQ1B1qB/2b5/R2q2Nb/3N1b1N/p1r3r1/Rnb1p2q/5nk1 w - - 0 1 illegal: No possible last move, all moves rejected
B2K1R2/3Rq1b1/rQ2Nnp1/3bRr1b/2p2RBk/1Pn3Nq/2n5/3r1q1b w - - 0 1 legal: proof: f4 h5 a4 b5 g4 bxa4 c4 hxg4 b3 d5 f5 dxc4 f6 a3 Bb2 axb2 Kf2 exf6 Ke1 f5 Ra6 f4 Ra2 Rh5 Ra1 Rh8 Kf2 c3 e4 Ke7 d4 Kf6 h4 a5 d5 c5 d6 g6 h5 Kg5 d7 f5 e5 a4 h6 a3 e6 g3+ Kf3 a2 h7 c4 e7 g2 e8B c2 Rh3 c1Q Qe1 Ra6 Rh1 Nc6 Bf7 Qc3+ Qe3 Na7 Rh3 Bb7+ Bd5 Nf6 Be4 Qe7 d8R Nb5 Ne2 g1R Nd2 b1B Rg3+ Kh4 Nd4 Bc2 Rd6 Bd1+ Be2 Re1 Rc1 a1N Nf1 Nc2 Rd7 Qd3 Rb1 Nc3 Ne6 Bh6 Rg5 Rc8 h8R Rc5 Rhd8 Bg7 Rf8 Re5 Kf2 f3 Qb6 f4 Bd5 Qf5 Ng3 Qh3 Bc6 Rg1 Ra1 Re1 Ra5 Rf5 Re5 Bc8 Ba8 Bb7 Nh5 Rh1 Rg1 Bc6 Rf1 Bd5 Ng3 Na3 Ke1 f2+ Kd2 f3 Ke3 Rg1 Kd4 Rh1 Rg1 f1B Rg2 Rg1 Rf2 Bg2 Rf1 f2 Bf3 Qe8 Kc5 Bh1 Kd6 Nc2 Kc7 Qf7 Kd8 Be2 Bg2 Bh5 Bf3 Qe8+ Kc7 Qe7 Bg4 Qc5+ Kd8 Qb4 Rd1 Qa3 Rd3 Rd1 Rd4 f1Q Rf4 Qe7+
1r1n2N1/1rQ3RP/n1b4K/2pqRr1B/3Bp2N/R3nbR1/7b/2q1bq1k w - - 0 1 legal: proof: g4 f5 e4 fxe4 c4 h5 b4 hxg4 a4 d5 b5 dxc4 b6 axb6 a5 bxa5 Nc3 a4 Nb1 a3 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 b5 h4 c5 f4 e5+ Kg6 b4 d4 e3 f5 Ke4 d5 c3 d6 c2 h5 g3 f6 e2 h6 e1B f7 g2 d7 a2 h7 b3 Kh5 g5 Be3 c1Q Qd2 g4 Qd1 g3 Rh2 b2 Bh6 Ra7 Bb5 Na6 Na3 b1B Bg7 Bd6 f8R Ne7 Rf5 Bb7 Bh6 Bc6 Rh3 Rb7 Nf3 g1R Nc4 g2 Be3 Rf1 Kh6 g1Q Nh4 Rf8 Rh5 R1f5 Na5 Qf1 Rg3 Qa8 Bc4 Rfb8 d8R Bd3 Rhg5 Be2 Bd4 Bf3 Re8 Kf4 Qd3 e4 Bf7 Be5 Rg7 Bd6 Rb1 a1N Bh5 Nc2 Rb3 Ne3 Qb5 Bc7 Qb6 Be5 Qc7 Bd6 R3g5 Be5 Ra3 Bd6 Bg4 Kg3 Bh5+ Kh2 Rg4 Kh1 Rg3 N7d5 Re5 Nf4 Rd5 Ne6 Re5 Be8 Nc6 Nd8 Ne7 Bc6 Re6 Be5 Ng8 Bd6 R3g4 Bh2 Re5 Qa7 Rg2 Qb6 R2g5 Qb3 Rg3 Qd5
1r3Nk1/K2nb2q/1p1R4/3Rb1B1/6NP/1b2Qr1n/r3n1p1/RR1rb1Br w - - 0 1 legal: proof: e4 h5 b4 f5 d4 fxe4 g4 hxg4 a3 c5 b5 cxd4 b6 axb6 Bh6 b5 Bc4 b4 Ba2 b3 Bc1 bxa2 Ke2 Kf7 f4 d5 c4 e5 h4 g5 a4 g3 c5 d3+ Ke3 b6 a5 g4 a6 g2 a7 g3 f5 d2 f6 d4+ Ke2 d3+ Ke3 Qd7 c6 Be7 c7 Nc6 Nh3 g1N Qa4 d1R Nd2 g2 Nb3 d2 Qa3 Nd4 Nf2 Rf1 Nc5 d1R Ng4 Nde2 Ne6 Nh3 Nf8 Rf2 Rb1 a1B Qd3 Ba6 c8R Bc4 Rc5 Bb3 Rd5 Qf5 Qd4 Qh7 Re1 Rb8 a8R Bc3 Ra4 Ra8 Raa1 Ra2 Rf1 Rf5 Rf2 Bb2 Qc3 Rh1 Kd2 e3+ Kd3 Rd1+ Bd2 Rh1 Qd4 Rf3+ Qe4 Nd4 Bc1 e2+ Be3 e1B Rd2 Ne2 Rdd1 Ba4 Kc4 Bb3+ Kb5 Bbc3 Qd4 e4 Bg1 e3 Kc6 Bb2 Kb7 Bbc3 Qc5 Be5 R1d4 Nh6 Qa3 Kg8 Ka7 Nf7 Rd6 Nfg5 Rdd1 Ne6 R1d5 Nc5 f7+ Kg7 Nd7 Rb8 f8B+ Kf7 Bg7 Kg8 Nf8 Nd7 Bf6 Bc4 Ne6 Ng3 Nf8 e2 Ng6 Bd2 Nh8 e1R Bg5 Rd1 Ng6 Ne2 Nf8 Ba5 Qc5 Bb3 Qe3 Be1+
rrn2kq1/4r2B/2PR4/n1Rp1b2/3NNNNb/1pBn2r1/Q2nq3/4n1K1 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kf2 h5 e4 b5 g4 d5 c4 f5 e5 f3 c5 a2 e6 b4 e7 h3 g5 h2 g6 h4 g7 b3 Qe1 d3 Bh6 f4 Be2 d2 Bd1 h3 Kf1 f2 Nc3 Nc6 Be2 d1Q Rb1 a1N Ba6 Nc2 Nce2 Na5 c6 Bf5 Nc3 Qf3 Qd2 Ne1 Bd3 Kf7 e8N Be7 Ba6 Bh4 Nge2 Ne7 g8N Nc8 Bg5 Kf8 Ng7 Rh7 Nh5 Re7 Rg1 h1R Ne4 h2 Qa2 Qe8 Bb5 Qf7 Nh6 Qg8 Nd4 Qg2+ Ke2 f3+ Ke3 f1R Bd3 f2 Rc1 Qg4 Rc5 Rb8 Rg2 Rhg1 Nf4 h1N Bf6 Qd1 Rg6 Rg3+ Nf3 Qc2 Ng4 Rfg1 Bc3 f1N+ Kd4 Qb2 Rd6 Nd2 Ke3 Nf2 Bc2 Nfd3 Ke2 Nb1 Nd4 R1g2+ Kf1 Re2 Ng2 Nd2+ Kg1 Ra7 Bb1 Raa8 Bc2 Qc1 Bb1 Qd1 Bc2 Ree3 Bb1 Qe2 Bc2 Rh3 Nf4 Rhg3+ Kh1 Qg7 Nef6 Bg6 Nh3 Ne5 Nf4 Qg8 Be4 N5d3 Bf5 Bh5 Bh7 Re7 Ne4 Bf7 Nc2 Bg6 Nd4 Ng2 Kh2 Bf5 Kg1 Nge1+
2bBN2k/4qr1p/6pq/b1B3Qn/2NRK2P/1N1R2br/1Npr3q/rn6 w - - 0 1 legal: proof: c4 f5 b4 d5 e4 dxe4 b5 a6 Qa4 axb5 Qb3 bxc4 Qd1 c3 g4 fxg4 a4 b5 a5 Nf6 Bd3 Ng8 Bc2 Nd7 Bb3 Nb8 Ba4 bxa4 Ke2 Kf7 Ke3 c5 d4 e5 f4 g6 h4 Kg7 d5 a3 a6 c4 a7 g3 f5 g2 d6 a2 d7 c2 Nd2 c3 Bb2 c1Q Qa4 c2 Nf3 g1Q+ Ke2 e3 Kd3 e2 Qc6 e1R Qd5 Nc6 Qd4 Nf6 Qg4 Rf1 Nd4 Na5 Rh3 Nh5 N4b3 Bd6 Ba3 Qe7 d8B Qh2 Bc5 Nc4 Qg5 Na3 Nc4 Nb1 Nb2 e4+ Kd4 e3 f6+ Kg8 f7+ Kg7 f8N e2 Kd5 e1B Rd3 Rf7 Nd7 Bdg3 Nb6 Ba5 N6c4 Re8 Kd4 Kh8 Kd5 Rb8 a8N Rb6 Nc7 Ref8 Nd4 Rb3 Ne8 Rc3 Nb3 Rf2 Qg4 Qh6 Qg5 R8f7 Kd4 Rd2 Kd5 Na3 Rd1 a1R Rd4 Rcf3 Rd3 Nb1 Kd4 Be5+ Ke4 Rh3 Rd4 Rg2 R1d3 Rd2 Qf5 Bg3+ Qe5+ Qf6 Qg5 Qe7+
1r1b4/q1p1pP2/b3R1K1/RN2r3/BkN2q1q/qn4bn/2B3p1/1Q3NrN w - - 0 1 illegal: Other
2n1b2N/b1pp1nb1/1R2rR2/4nQNN/1br1nn1N/PB1q1BK1/3k2p1/8 w - - 0 1 legal: proof: c4 h5 b4 e5 g4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 d4 f6 e4 Ke7 Bf4 exd4 e5 Kf7 e6+ Ke8 Be5 fxe5 h4 Ke7 f4 Kf6 Kf2 Kf5 h5 Ke4 h6 b5 h7 g5 e7 d3 e8B d2 f5 b4 f6 g3+ Kg2 Ke3 a3 e4 f7 b3 Be2 b2 Rh6 c2 Ba6 c1N Rh1 g4 Bc4 Nh6 Qe1+ Ne2 Rh4 d1N Nh3 Ra6 Qa5 Nf4+ Kg1 g2 Kh2 g1B+ Kg3 Nf2 Bd5 N2d3 Bc4 Qe7 Ba2 Qd6 Qf5 Nc6 Qd5 Nde5 Qd1 Na7 Nd2 b1N Qb3+ Qd3 Qb2 Bg7 f8N Re6 Qb8 Ba6 Bc4 Nc8 Ng6 Nc3 Ng5 Nhf7 Bb3 Bc4 Ndf3 Ke2 Rf1 e3 Rh6 Ne4+ Kh4 g3 Qb5 Rf8 h8N g2 Qa5 Ng4 Qf5 Nge5 Rc1 Bd5 Rc6 Bc4 Rb6 Bd5 Nd4+ Kd2 Ne2 Rg8 Ng3 e2 Nh5 Be3 Rb7 Ba7 Rb6 e1B+ Ng3 Nf2 Nh5 Bf3 Kg3 Ne4+ Kh2 Bg4 Nh4 Bd1 Ng3 Bh5 Rf6 Nfd6 Bg6 Ndf7 Bh7 Bg6 Nh5 Rge8 Bg8 Rc6 Bd1 Ree6 Bg4 Rc4 Bf3 Nfd6 Bd1 Be8 Bb3 Re7 Bd5 Ndf7 Ba8 Re6 Bc6 Ke3 Bb7 Bb4 Ba8 Nc3 Bf3 Kd2 Kg3 Ne4+
6n1/2K3rk/1n2nPq1/1b1R1Qrb/r1p1p2r/B1N1n1BN/pb2B3/2R4B w - - 0 1 illegal: No possible last move
1Nr4Q/Nn4b1/1p3RpK/1q2b2p/1qB5/1NN2rk1/P1n1B2b/1R1q2qb w - - 0 1 illegal: No possible last move, all moves rejected
r1R3q1/2Pb2R1/b1B1n3/B1kr1pN1/Rb4Qp/K3q1nq/3qpR1N/4b3 w - - 0 1 legal: proof: d4 b5 b4 a5 f4 axb4 h4 g5 e4 gxh4 e5 Ra3 f5 Rf3 d5 Rf2 d6 cxd6 f6 dxe5 Rh2 e4 Rh1 e3 Qd5 Nxf6 Qd1 Ng8 c4 d5 a4 Kd7 g4 Kd6 a5 e5 g5 f5 a6 h5 a7 e2 Kd2 e1B+ Kd3 h3 a8R h4 g6 d4 g7 b3 Qf3 h2 R1a6+ Nc6 Qg2 b4 Qe4 b2 Qe2 e4+ Kc2 b3+ Kd1 d3 Ra5 d2 Nh3 e3 Ng1 Bd7 Nh3 Nf6 g8R Bg7 Na3 b1Q Qh5 b2 Ng5 Qe4 Bg2 b1B Nc2 Nd4 Rc8 Ne6 Nd4 Bd3 Rf1 h1Q Ndf3 Qh3 Qg4 Nh5 Nh2 Ng3 Ra4 Bc3 Rg7 Qg8 c5+ Kd5 c6 Kc5 c7 Ba6 Bh1 Qf3+ Kc2 d1Q+ Kb1 Rd2 Rf2 Rd5 Ka2 e2 Ka3 Qc2 Bf4 Qe3 Be5 Qcd2 Bd4+ Kc6 Bb6 Kb5 Ba5 Kc5 Bg2 Qf8 Rf3 Rd6 Rf2 Rd4 Ba8 Rd5 Rb8 Qf7 Bb7 Rd8 Bc6 Qg8 Rb7 Ra8 Rb8 Qf7 Re8 Qg8 Rc8 Bb4#
5kN1/N3p1Rn/2r3KB/qN2pbn1/2pn2N1/1QqR2b1/1r1Pp1b1/q5B1 w - - 0 1 legal: proof: e4 a5 h4 f5 b4 axb4 h5 fxe4 c3 bxc3 h6 gxh6 Bb2 h5 Bc4 h4 Be6 dxe6 Bc1 e5 Ke2 c5 Ke3 b5 g4 h5 f4 h3 a4 h4 a5 b4 f5 b3 a6 c4 a7 b2 g5 c2 g6 h2 f6 h3 g7 Qa5 Na3 b1Q Nf3 Nc6 Qf1 Rh6 Qe1 Be6 Bb2 c1Q Qd1 Nd4 Qb3 Rb8 Rg1 h1N a8N h2 Nb6 Ng3 Nb5 h1B Ra3 Bg2 Nc8 Qa1 Nh2 Rb6 Nca7 Rc6 Qd3 Qcc3 Ng4 Rg6 Rh1 Kf7 Rh7 Rh6 Rb3 Rh1 Ba3 Rb1 Bc5 Rb2 Ra3 Nh5 Rb3 Nh6 g8N+ Ke8 Rg7 Nf7 Bb6 Ng5 Ra3 Nh7 Bc5 Nf4 Rb3 Nh3 f7+ Kd7 Bb6 N3g5 Ra3 Qcb4 Qb3 Qc3+ Kf2 e3+ Kg3 e2+ Kh4 Be4 Kh5 Bg2 Rg6 Bh6 f8B Ke8 Rg7 Ngf3 Kg6 Bf4 Bc5 Bg3 Bb6 Nfg5 Bc5 Nc2 Bg1 Nd4 Rf7 Be1 Bh6 Bg3 Rg7 Kf8 Qa2 Qcc1 Rd3 Qcc3 Qb3 Bf5+
2B1N1rb/4r3/nr3Q2/b4rnk/qB3bR1/NQ4nP/1b6/QBbbK3 w - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 Nh3 c5 Ng1 cxd4 c4 dxc3 g4 hxg4 b4 d5 Ra4 d4 Ra2 d3 Rc2 dxc2 e4 a5 b6 g5 b5 f5 b7 Kf7 b6 Kg6 h3 g3 e5 g2 e6 f3 e7 g4 Qd5 a4 Bb5 f2+ Ke2 f1N Qa2 g3 Qb3 a3 Bf4 c1B Qb2 c2 Qa2 Qd7 Nc3 Ra7 Be3 f4 Nf3 g1R Bf2 g2 Bh4 Kh5 Qc4 a2 Qc6 a1B Rh2 Bh6 Ba6 Nf6 Nd5 Nh7 Nd4 f3+ Ke1 Rg8 Qf6 Ng5 Nc7 Bcb2 Ndb5 c1B Na3 Qa4 Ne8 Bg4 Bf2 Rh1 Bc5 g1B Rg2 Ng3 Bb4 Bge3+ Rg1 Bf4 Bd3 Rh2 Bb1 Na6 b8Q Bg7 b7 Bh8 Qd8 Bc3+ Qd2 Bab2 b8Q Rb7 Qa8 Rb6 Qd5 Rf2 Qb3 Rg2 Kd1 Re2 Qe1 f2 Qf1 Bf3 Rg2 N3e4 Rg4 Ng3 Qe1 Bce5 Qc3 f1R+ Qe1 Rff2 Qc3 Bc7 Qce5 Rd2+ Ke1 Rd7 Qec3 Bd1 Qcd4 Rf3 Qg1 Bbe5 Qd4 Bd8 Qa1 Beb2 Qf5 Rbb7 Bd6 Bfe3 Qf6 Rf5 Bb4 Rbb5 Nc7 Bf4 e8B+ Rf7 Bd7 Re7+ Be6 Rb7 Ne8 Ba5 Qfc3 Bhe5 Bc8 Rb6 Qd4 Bh8+ Qe5 Ref7 Qf6 Re7+
2q3bB/4r2B/3N1N2/2K1N1nq/1B1QPk2/4nn1R/5qqn/2brbQ1b w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 b5 c5 Na3 cxd4 Rb1 b6 Rb4 axb4 a5 bxa5 Nb1 a4 Rh2 b3 Rh1 b2 Na3 b1N Nxb1 a3 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 g3 h5 e3 d5+ Kd3 f3 c4 a2 b6 a1B b7 h3 c5 f2 c6 h4 c7 h2 Be2 f1N Nd2 h3 Bb2 Bh6 Qb3 Nd7 b8B Ngf6 Qa2 Ra7 Bf3 Ne5+ Ke2 d3+ Kf2 d4 Ne2 Ne4+ Ke1 Ng5 Kf2 Be6 c8Q Re7 Qc3 Qc8 Qc2 Rd8 Ne4 d2 Qc1 d1Q Qd5 d3 Ng1 d2 Bd6 f6 Qd3 Bg8 Qd4 Qdc2 Bb4 d1Q+ Be2 Nef3 Qb1 Q2c5 Bd3 Kg4 B2c3 f5 Nd6+ f4 Bh7 Rdd7 e4 Ne3 Qbd3 Bb2 Qf1 Bc1 Ba1 Bd2 Bb2 Qdc2 B2c3 Qb2 Ke2 Be1+ Kd3 Qf2 Ba1 Nh4 Bb2 f3 Ba1 Qg2 Bac3 f2 Nf3 Kh5 Ne5 Nhf3 g4+ Kh4 Ba1 Kg3 Bb2 Kf4 B2c3 Nf7 g5 Rd8 g6 N7g5 Rg1 h1Q g7 h2 Ba1 Qgg4 Rg3 Qg2 Bac3 h1B Rh3 Qh5 Ba1 Be6 g8N Qb6 Qe2 f1N Nf6 N1h2 Qf1 Bg8 Bc5 Nd5 Kc4 Qa7 Kb5 Ne3 Bb4 Qaa2 Bac3 Qaf2 Bb2 Rdd7 Kb6 Rc7 Kb5 Rc1 B2c3 Rd1 Ba1 Qf5 Kc5 Qc8+ Nc6 Nf7+ Nd5+ Kg5 Qc3 Nf5+ Qe3+ Kg4 Bh8 Bf4 Qd4 Bc1 Nf6+ Kf4 Rg3 N7g5 Rh3 Qb8 Ne5 Ne3 Nfd7 Qb7 Nf6 Qc8+
1n1nK3/3n4/k1B2bR1/2B3Np/q3n3/nP1nBr1n/5NQ1/rQ1r1b1N w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 h4 gxh4 c4 dxc3 b3 a5 Ra3 a4 Ra2 a3 Rb2 axb2 Kf2 h5 Kf3 d5 e4 Kd7 g4 Kc7 g5 Kb7 g6 f5 b6 d4 g7 d3 e5 c2 e6 h3 e7 h2 e8Q d2 Qa4 Qd4 Qb5 Nf6 g8N Ra1 Qa5 Be7 Ne2 Qa4 Nbc3 b1N Nd5 Nfd7 Qc3 Ka6 b7 Na3 Qd4 Bf6 Nh6 Rf8 Rg1 h1N Ndc3 Nf2 Nf7 Nh3 Ng5 Rf7 Qe1 d1R Be3 c1N Nce4 Nd3 N2g3 Rf8 Qd5 Rf7 Kg2 f3+ Kh2 f4 Nf2 Rf8 Ngh1 Rf7 Bg2 Rf8 Ng4 f2 Qe4 f3 Kg3 f1N+ Kh4 Nd2 Ngf2 Ndc4 Qg6 Nc6 b8B Nd8 Bd6 Nb8 Bdc5 Nce5+ Qe4 Ned7 Qd2 Ndf4 Qb1 Nd3+ Ng4 f2 Bc6 N3e5 Kg3 Bg7 Ne4 f1N+ Kh4 Ng3 Qh2 Rf6 Ngf2 Ka5 Rg2 Rf3 Qg1 Nf1 Rg6 Ng3 Qh2 Ba6 Qg2 Nf4 Kg5 Bf1 Qa2 Ned3 Qb1 Bb2 Kh6 Bd4 Ng5 Ka6 Kh7 Nh3 Kg8 Nf6+ Kf8 Nfd7+ Ke7 Bf6+ Ke8 Ne4
3K3n/1B1n3n/b3q1Bb/1r1nPQrQ/2p1RNr1/Qn4kB/5N2/n6r w - - 0 1 legal: proof: f4 a5 h4 g5 a4 gxh4 b3 e5 b4 b5 axb5 exf4 Ra2 axb4 Ra3 Qe7 Ra1 Qd8 c4 c5 Ba3 b3 Bb4 d6 Ra2 Na6 Rc2 cxb4 c5 Nb8 c6 Ra2 Rc3 Ra8 Rc5 dxc5 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 f5 e4 c4 g4 h3 g5 b2 g6 h2 c7 f3 d4+ Kf4 b6 b3 d5 f2 b7 Qd7 d6 Ra5 g7 Ne7 g8B Kg3 Kg5 h5 Kf6 h4 Qd2 f4 Qb4 h3 Qb6 f3 Qb4 Rh4 Nc3 b1N Bd5 b2 Bf7 Rg4 Nd1 Ng6 Be6 Na3 Qb5 b1R Nc3 Nc2 Qf5 Nh8 Bf7 Rbb5 Nd5 Bh6 Nf4 Na1 Bg6 Qe8 Bg2 f1N d7 f2 d8Q Nd2 Qe7 f1N Qa3+ Ne3 Bf3 Qg8 Ke7 Qe6+ Kd8 Nd7 b8Q Ba6 c8B Nd5 Qbe5 Ndb3 Bb7 N5f6 Qh5 Nh7 Qf6 Rbg5 e5 Rb5 Bg2 Rc5 Nf3 Rb5 Re1 h1N Re4 h2 Ng1 Nf2 Qf5 h1R Ngh3 Nd3 Nf2 Nb4 Bh3 Nd5
N2n2rQ/Pbpk4/3bN1q1/2bB4/nn2bqB1/5Qb1/1R1Bq3/1Q1q3K w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 h4 dxc4 a4 e5 d4 exf4 h5 b5 d5 Nc6 d6 Ba6 Ra3 bxa3 h6 gxh6 d7+ Ke7 Rh3 h5 Rh1 Rc8 dxc8Q h4 Qh3 Ke8 Qg4 Na7 Qc8 Nc6 Kf2 f5 e4 h5 g4 f3 a5 a2 g5 a1B g6 f4 e5 c3 g7 h3 e6 h2 e7 b4 Bd3 c2 Qb8 h4 Bb2 c1B Bf1 h3 Bb5 b3 Qd5 Nh6 g8B Bb7 a6 Nf7 a7 Be3+ Kf1 f2 Nf3 Bc5 Qg5 Kd7 Nd4 Qe8 Ba3 b2 Qg1 Nd8 Bgc4 Rg8 Ne6 Qg6 Nc3 b1N Nd5 Nc3 Bc1 Na4 Bd2 Be5 Qg3 Bcd6 Rg1 h1B Qf3 h2 Rg2 Bc5 Ba6 Nb4 Bb3 Bed6 Be2 Bg7 Bed1 Bf6 Bc4 Bh4 Bde2 Bg3 Nb6+ Ke8 Na8 Kd7 Qa3 Be4 Bg4 Bb7 Qf3 Be4 Rg1 Bb7 Bd5 Bg2+ Ke2 h1Q Rb1 Qh4 Rb2 Qhf6 Qa3 Be4 Kf1 Qd4 Qf3 Qc4+ Kg2 Qe2 Kh1 Qd1+ Be1 Qe2 Qg2 f3 Bd2 f1Q+ Qg1 Qc1 Qf1 Qcc4 Qg2 f2 Qf3 Bc6 Qb5 Qc2 Qd3 Bb7 Qb3 Qcd3 Qc2 Qde3 Qb1 Qf4 e8Q+ Kc8 Qg1 f1Q Qf8 Qa1 Qb1 Kd7 Qf6 Bd3 Qh8 Be4 Qg1 Qb1 Qc1 Qc2 Qb1 Qcd1+
b6Q/3bQrB1/N1B2pN1/P2B2r1/1r4kq/2r4N/b3q3/KbbnbR2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Nd2 d5 Nb1 d4 a4 gxh4 c3 b5 Ra2 Nc6 Ra3 bxa3 c4 b4 Rh2 Na7 Rh1 Nb5 cxb5 Bh6 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kc2 Kf6 e4 Kg5 g4 h5 b6 d5 b7 b3+ Kd2 f3 b8N h3 a5 h4 e5 d3 Kc3+ d2 e6 f2 e7 d4+ Kb4 d3 Kc3 b2 e8Q a2 Qc6 a1B Qd6 h2 Qf3 h3 Qfc6 Nh6 Qe4 Rg8 Qc7 Bd7 Qce5+ Nf5 Qg2 Ba3 Qe8 Ne3 Qf3 d1Q Qe2 d2 Bg2 f1R Qa6 Qe2 Bb7 d1R Qd6 Rd4 Bc6 Rb4 Nd2 b1B+ Bb2 Rff4 Na6 Rc8 Qdf8 Rf6 Nc4 Nd1+ Kd4 Kh4 g5 Kg4 g6 Rg7 Bc3 Bc1 Qfe7 Rf5 Qh8 Rg5 Bb2 Rh7 g7 f6 g8B Rf7 Bc3 Qf8 Bb2 Qh6 Bc3 Nb2 Bd2 Qh4 Kc3 Ba2 Kc2 Rc7 Kc3 Nd1+ Kc2 Bc3 Ne5+ Kf5 Ng6 Kg4 Nf3 Rc8 Rf1 h1B Ng1 h2 Nh3 Bhd5 Ngf4 h1B Ng6 Qf3 Bf4 Be1 Be3 Qe2+ Bd2 Bab3+ Kb1 Bhe4+ Ka1 Bb1 Be3 B3a2 Bd2 Rh5 Bh6 Rg5 Bg7 Bh1 Bb5 Ba8 Bc6 Rff8 Bgd5 Rf7 Ba4 Rcc4 Bac6 Rc3
r3nB2/NQ1pp2R/2Q1nQ1K/4n2q/2P5/1n1Nkb2/b1BNb3/4rq1n w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 b5 d4 bxa4 d5 f5 d6 fxe4 Qd3 cxd6 Rh3 d5 Qd1 d4 Raa3 Bg7 Rab3 axb3 Rh1 Bh6 Bb2 Bc1 Bxc1 a4 Kd2 Kf7 g4 Kg6 f4 h5 c4 a3 b5 e3+ Kd3 e2 Ke4 e1N g5 b2 b6 h3 b7 h2 Qc2 d3 Qg2 a2 Nd2 b1B Qh3 a1N Qf3 h4 Bg2 h3 Ne2 Nc6 b8N Ne5 Nc6 Nec2 Na7 Qf8 Bb2 Qf6 Nc1 Nb3 Bc3 Ncd4 f5+ Kh7 Kf4 Ba2 g6+ Kh6 g7 Bb7 Qc6 Ne6+ Ke3 Kg5 Be4 Qh6 f6 Qh5 f7 Nf6 f8Q Ne8 Qf6+ Kg4 Bf5+ Kg3 Ke4 Kf2 g8Q Rh7 Qg4 Rg7 Qd1 Rg1 Qc2 Rf1 Qb2 Rg1 Nb1+ d2 Nd3+ Ke2 Bd4 Re1 Be3 Rc8 Bh6 Rb8 Bf8 Ra8 Qd4 d1B Qb6 Na5 Nd2 Nb3 Rg1 h1N Rg7 h2 Rh7 Qg5 Bg6 Qg2+ Kf5 Qf2+ Nf3 Qf1 Qbb5 Ke3 Qb4 Ned4+ Kg5 Be2 Kh6 Ne6 Nd2 Rb8 Qa6 Bbf3 Qbb7 Rc8 Qac6 Ra8 Nf2 Ng3 Bc2 h1Q+ Qh4 Qhh3 Nd3 Qf5 Qf6 Nh1 Qbb5 Qg4 Qbb7 Qh5#
Rb1b1Q2/R2n1KN1/6N1/2r2bp1/1Q4P1/1r1rNn1p/4q1Q1/1nkBq1n1 w - - 0 1 legal: proof: b4 b5 d4 e5 f4 exf4 h4 Qxh4+ Kd2 c5 a4 bxa4 b5 cxd4 Bb2 a3 Bc3 a5 Bxa5 Qh3 Ke1 Qh2 Bc7 Nc6 Bb8 Nxb8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 g4 Ke4 e3 h5 b6 d5+ Kb5 f5 c4 g5 b7 f3 c5 d3 c6 d4 Kc4 f2 c7 h4 Bh3 f1Q Qe1 f4 Qc3 f3 Ra2 d2+ Ne2 d1R Rb2 d3 Nc1 f2 Rb6 d2+ Ne2 a2 Qa1 Ra5 Ra6 Nh6 Qf6 a1B Ra8 Qe1 Na3 f1N Nc2 Be7 Nf4 Nd7 b8Q Nf5 Qb4 N1g3 Bf1 h3 Ng6 Ne2 Qf8 Ng1 Be2 Nd4 Ra7 Rb1 Bd1 Rb3 Qf1 Bd8 Qg2+ Ndf3 Ra8 Bb7 c8Q Be5 Qcc5 Raa3 Qf8 Bb8 Ra7 Bc8 Ra8 Ne5+ Kc5+ Kd3 Kd5 Rg8 e4 Bf5 Ne3 Nd7 e5 Rg7 e6 Rf7 Qf1+ Qhe2 e7 Rf6 e8N Rc6 Ng7 Rc8 Qe4+ Kc3 Qg2 Kb2 Qeb4 Kc1 Bc2 d1N Rh2 Bd3 Ke6 Rc5 Kf7 Nc3 Bd1 Nb1 Ra7 Bf5 Rh1 Nh2 Ra8 Ngf3 Rf1 Ng1 Rf4 Nhf3 Rd4 Nf6 Rd7 Rd3 Rc7 Rab3 Rca7 Nd7
n1R5/b2k1r2/n1b2pQ1/4n1K1/1PqB1Q1B/3R2B1/1Nb1r1p1/n1R1nn2 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 e4 g6 g5 h6 Be2 h5 Bg4 hxg4 axb5 Qb6 Nd2 Qd8 Ndf3 Nc6 Nh4 fxe4 f5 Nb8 f6 Rh5 Nf5 gxf5 Nf3 Rh4 Ng1 Rh8 Kd2 d5 b4 a5 c4 g3 h4 e3+ Kd3 e2 c5 e1N+ Kd2 f4 h5 f3 f7+ Kd7 b6 d3 Ke3 d4+ Kf4 f2 b7 f1N h6 a4 h7 d2 g6 d3 g7 a3 Rh4 g2 Nh3 a2 Qc2 d1B Kf5 d2 Qe4 Nf6 g8Q Nd5 Bb2 Qc7 Kg5 Na6 b8B Bg7 f8Q Bd4 Rc1 a1N Qf6 Nb6 Qgg6 Rf8 h8B Bb7 Qef4 Bc2 Nf2 d1N Nd3 Bc6 Rh3 Nf2 Rf3 Be3 Bd4 Ng4 Nb2 Rf7 Rh3 Bg1 Rd3 Ne5 Bg7 Ra7 Bh8 Na8 Bf2+ Qd6 Bh4 Qd4 Bc7 Nb8 Bg7 Ra2 Bh8 Na6 Bb8 Bf3 Bd6 Qc4 c6+ Kc8 c7 Kd7 c8R Ba7 Qh6 Bc6 Qfg6 Ng4 Bd4 Ne5 Qh8 Bb3 Qhf6 Bba4 Nd1 Re2 Nb2 Bc2 Qe3 Ng4 Bdg3 Ne5 Qef4 exf6+
NQ4b1/1K2q3/1R2bbp1/3rp2r/P2k4/n1b1rB2/Q4r2/RQB2rBb w - - 0 1 legal: proof: e4 a5 d4 h5 g4 c5 b4 cxd4 e5 axb4 e6 fxe6 Bf4 e5 Bc1 e4 a4 hxg4 c3 b5 Na3 bxa3 c4 b4 Qe2 Nc6 Qc2 Na7 Qd1 Nb5 cxb5 Ba6 Nf3 Bb7 Ng1 Bc8 Kd2 Kf7 h4 Ke6 f4 Kd5 h5 e5 f5 g3 b6 g2 b7 a2 b8B b3 h6 e3+ Kd3 g6 f6 e2 h7 e1R f7 b2 Nf3 g1R Ba7 b1B+ Qc2 Nh6 Bh3 Ng4 Bb2 Be7 f8Q Bf6 Ng5 Qe7 Bc5 Rgf1 Qe8 Re3+ Kd2 d3 Kc3 d2+ Kb4 d1B Kb5 Bf3 Rg1 Bh1 Kb6 d6 Nf3 Be6 Qf7 Raf8 Qc1 Ke4 Qg8 d5 Bg2 d4 Ng5+ Kd3 Qf7 Bc2 Qg8 Bcb3 Bf3 Bbc4 Rb1 a1B Qe1 Rf7 Bc1 Bc3 Kc6 Ba2 Rb6 Kc4 Qb8 d3 Qe2 Bb3 Qa2 d2 Bd4 d1R Qb7 Rhf8 h8Q Rh7 Qb8 Bg8 Ne6 Rh5 Nc7 Rf7 Bc5 Rd5 Kb7 Rf8 Qb1 Be6 Qg8 Rf2 B5a3 Kd4 Bb4 Rf7 Bc5+ Kc4 Qgf8 Re1 Qh6 Rb2 Qe3 Rdd1 Ba3 Bf5 Qf2 Bg7 Qa1 Ne3 Bc6 Nc2 Bf4 Re3 Bh2 Ra2 Bb2 Na3 Qe1 Bd7 Na8 Rd6 Rf1 Kd4 Bg1 Rff5 Qf2 Bg8 Rb1 Rf4 Bc1 Bf6 Qe2 Rf1 Bf3 Rd2 Qb2 Rd5 Ra1 Rc2 Qb1 Rb2 Qec2 Ra2 Qcb3 Raf2 Q3a2 Bde6+
1bk1nB2/2pN2pb/1qb1b2q/1q4b1/NQPNr3/7Q/2R2KR1/q3Qn2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 f3 exf3 b5 h5 b6 axb6 Nc3 b5 Nb1 b4 g4 hxg4 a4 Ra5 Ba6 Rb5 axb5 bxa6 b6 a5 d4 Kd7 h4 f5 h5 e5 d5 f4 c3 b3 b7 g3 d6 b2 h6 a4 h7 e4 Qc2 f2+ Kf1 g2+ Ke2 f1Q+ Kd2 a3 Nh3 g1Q Qa4+ Nc6 b8Q a2 Qa5 f3 Qbb5 e3+ Kc2 f2 Na3 e2 Kd3 b1B+ Ke3 e1B Bb2 Nf6 Nc4 Be7 Ng5 Re8 h8Q Bh7 Qbb4 Ne5 Rc1 a1Q Ne6 Nf3 Nd4 Nd2 Rc2 Bb7 Rh3 Kc8 Ne5 Qb5 c4 Bc6 Rh2 f1B+ Rf2 Be2 Nd7 Bg4 Ba3 Be6 Ke2 Nf1 Rg2 Bh4 Qe1 Bg5 Qab4 Qh2 Kf2 Qh5 Re2 Qh6 Rc2 Bhg8 Qh7 Qb6 Qd3 Bh7 Qh3 Qb5 Ne2 Bf8 Nc3 Re7 Na4 Qe8 Rg1 Qeg6 Rg2 Ne8 Ne5 Kb7 d7 Kb8 d8N Kc8 Nf3 Qgf6 Nb7 Qfb2 Nbc5 Qb6 Qbc3 Q2b5 Qb2 Bef5 Bb4 Re4 Nd4 Be6 Nd7 Bc5 Qbc3 Qb8 Qb3 Ba7 Bf8 Q8b6 Qbb4 Bb8
6K1/N2pbB2/1NB5/1r1Q4/1RNp2r1/Q1bqnbrn/5Pp1/3Qnk1n w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 f5 a4 fxe4 b5 c5 Ba3 cxd4 Bb4 b6 Ra3 axb4 a5 bxa3 axb6 Bb7 Bh3 Ba6 Bf1 Bc8 Ke2 Kf7 c4 Kg6 h4 Kf5 h5 Kf4 b7 e5 c5 g5 c6 g3 b6 a2 h6 a1R h7 g2 c7 e3 Kd3 e2 Kc4 e1N Kd5 g4 Rh4 e4 Rh6 e3 Rh3 g3 Qb3 e2 Na3 Na6 b8N Qe7 b7 Nh6 Nc4 Nf5 Nc6 Qa3 b8Q Rg8 h8Q Be7 Nb6 Rg4 Qh5 Nc5 Qb7 Ra5 Nf3 g1N Nfe5 g2 Nec4 Rb5 Na7 Qa6 Qb2 Ra3 Rb3 Nh3 Rb4 Kf3 Ke5+ Ne4+ Qd5 Bb7 c8B Ne3 Qa2 Bc6 Bb7 Rb3 Qa3 Rc3 Qc5 Ng3 Ba8 Bd5 Bc6 Nh1 Qd6 N1c2 Qe6 e1B Bd3 Rb3 Bg6 Ke2 Bf7 Bc3 Qd6 Bf3+ Qd5 Bd8 Kd6 Ne1 Ke5 Kf1 Kd6 Bc7+ Ke7 Bd8+ Kf8 Bh4 Qa1 Bg5 Kg8 Qa3 Qd1 Be7+ Qg6 Qa1 Qg7 Qb1 Qgg5 Qd3 Qc5 Re4 Qgd5 Rg4+ Kh8 Bb2 Nac8 Qg6 Bb7 Be2 Ra4 Nf5 Qa3 Rbg3 Bc6 Bc3 Rb4 Ne3 Na7 Qb1 Qac1 Bf3 Qa3 Bg5 Kg7 Qd3 Kg8 Be7+
Bb1K3R/2nR4/Qb3p2/Q2N2p1/bb5B/2n2r1P/Qrpk1bR1/2b4r w - - 0 1 legal: proof: d4 a5 b4 axb4 c4 h5 g4 hxg4 a4 d5 e4 dxc4 d5 Nf6 Na3 bxa3 f4 Qd6 e5 Ne4 exd6 Nf2 f5 Bxf5 Bf4 Bd7 Bc1 Bc8 Ke2 Kd7 Ke3 e5 a5 c5 a6 b5 a7 g5 Bh3 e4 Qc2 a2 Bf1 b4 Qd1 f6 Be2 b3 Bf3 g3 Qd3 g2 Qd1 c3 Bd2 c4 Kd4 c2 Kc5 c1B Kb6 c3 Qf1 e3 Ne2 g1B Bg2 b2 Ng3 b1R+ Ka5 c2 Ne2 Rb2 Nc3 e2 Be1 Nd1 Bh4 e1B Qa6 Bef2 Rb1 a1B Be4 Kd8 d7 Kc7 d8R Bb4+ Kb5 Bh3 Qa2 Na6 Rd7+ Kc8 Kc6 Nc7 d6 Bb6 Bf3 Bgf2 Nd5 Nc3 Bg2 Rb8 a8Q Be6 Nf4 Bb3 Q8a6+ Rb7 Nd5 Ba4+ Qb5 Kb8 Rg1 Ka7 h3 Re8 Bf3 Re1 Rg2 Rh1 Be4 Rb3 Bf3 Bab2 Ra1 Bf4 Re1 Bbc1 Re8 Ra3 Rh8 Bh2 Rdd8 Rb3 Kd7 Rb8 Qc6 Ka6 Ke7 Ka5 Rd7 Rb2 Qb7 Kb5 Qa6+ Kc5 Be4 Kd4 Bf3 Rb7 Kd8 Be5 Ne7 Ra7 Ba8 Ke3 Nd5+ Kd2 Rg7 Bg3 d7 Bf8 Kc8 Bfd6 d8Q Bb4 Rd7 Ne6 Bb7 Ne2 Qa1 Bbc7 Ba8 Bb3 Qb6 Ra3 Rh5 Ba4 Rh8 Rf3 Qa2 Nc3 Qa6 Bca5 Qdb6 Bb8 Qc5 Nc7 Kd8 Bb6 Qcb5 Ne2 Qba5 Nc3
2n2BKN/qk5r/2r1rq2/P2r1q1R/2bB1QR1/b6r/2r1b3/Qn1rR1Q1 w - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 b6 e4 Bh3 axb6 Nd2 b5 Bg4 hxg4 Ndf3 exf3 Be3 b4 Bd2 Ra5 Bc1 Ra8 Kf2 d5 e4 Kd7 c4 Kc6 a4 b5 h4 f5 h5 g3+ Kf1 d3 g6 b3 a5 g2+ Kf2 b4 e5 d4 h6 d2 e6 d3 e7 b2 e8R b1Q g7 b3 c5 b2 h7 Nd7 Re2 Ne7 g8Q Kb7 Re3 Ne5 Qf1 d1R Rh3 d2 Rc3 Nc4 Ra2 Be6 Qf7 Rc8 Ra4 Na3 Rh1 Rc6 Re3 Bc4 Qe6 Nc8 Rh5 Qf6 Ne2 g1R Rh6 Rh1 Qg1 Rh3 Qe5 Qd3 Qc3 b1Q Qa1 Qb6 Rh5 Nb1 Ba3 Qa7 Re8 Bd6 Re6 Re8 h8B Qc2 Re5 Re6 Bg7 Bf8 Bb2 Rc1 Bd4 d1R Re3 Bd6 Bf8 Qe4 Be5 Rd5 Bd4 Qd3 Re5 Rc2 Re4 Rc7 Re3 Rh7 c6+ Kb8 c7+ Kb7 Kf1 f2 Kg2 f1B+ Kf2 f3 Re4 Nd2 Nf4 Bc5 Re1 Ba3 Ng6 Be2 Nh8 Nb1 Rb4+ Rb6 Ra4 Qe4 Rb4 Qg4 Ke3 f4+ Ke4 f2 Ra4 f1R Rb4 Rff3 Ra4 Rd3 Rb4 Rc5 Ra4 Rcc6 Rb4 Qd8 Ke5 f3 Ra4 f2 Rb4 Be6 Ra4 Qd6+ Kf6 Qgf4+ Kg6 f1R Rc4 Rd1 Ra4 Rb5 Rc4 Rd5 Ra4 Rh6+ Kg7 Qf5 Rc4 Rf4 Ra4 Re4 Rc4 Bd7 Kg8 Qdf6 Ra4 Ree6 Rb4+ Ka8 Rc4 Rh7 Ra4 Nd6 c8Q+ Qb8 Qc7 Bc8 Ba7 Bca6 Bf2 Qa7 Rg4 Nc8 Qf4 Bac4 Bd4 Kb7
brqk3b/1b5n/NqPBr3/1Q1n4/bq2Q2b/8/2nB2R1/BKb1bQN1 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 c5 d4 cxd4 a4 f5 Bb5 fxe4 f5 Nc6 Ra3 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Be2 Na6 Bf3 Nb8 Bg4 hxg4 Kd2 e5 h4 d5 c4 b5 Kc2 g3 a5 f3 a6 e3 h5 d3+ Kb2 g2 f6 b3 a7 e4 g6 d2 h6 d4 h7 f2 c5 f1N g7 e2 Nc3 e1B Qf3 d1B Qg3 d3 Qh2 b4 Qh3 d2 Qf5 e3 Qd3 e2 Rh6 Bb7 Qe4+ Ne7 g8Q Ne3 Qf3 N7d5 Nb1 Bh4 Qfg3 e1B Nf3 g1B Qc7 Nd7 Qa5 Rb8 a8Q Nc2 Qg7 Qc8 Qg3 Be3 Qg2 Bg7 Na3 Nf8 Kb1 b2 Qb5+ Kd8 Ng1 Bf3 f7 d1B Bd2 Rg8 h8B Nh7 Qge2 Re8 f8B Re6 Qf1 Bh1 Bd6 Bgd4 Bc3 Bc1 Rg6 Bg2 Bhe5 Bgf3 Bf4 Bh8 Rg2 Nde3 Qba4 Bbd5 Nb5 Nd4 Nc7 Bc6 Q4a6 Bda4 Ka2 b3+ Ka3 b1Q+ Bb2 Bfe4 Qad3 Bed5 Na6 Bf3 Qb7 Bfe4 Qb4 Ba8 Qbc4 Bed5 Qe4 Bdb7 c6 Nd5 Qcd3 Qc2 Qc4 Qc3 Bd2 Qa5 Qc5 Qb6 Qcb5 Nc3 Kb4 Nc2+ Kc4 Nd5 Ba1 b2 Kd3 b1Q Qef4 Qb4 Qe3 Nd4 Qe4 Nb3 Kc2 Qd7 Bac3 Qc8 Kb1 Nd4+ Bb2 Q4a5 Bbc3 Nc2 Ba1 Qb4+
n1RN3b/3QnQ1P/1k2nN1K/2r5/q1qn1qRn/4N2b/1nnb1R1r/4B3 w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 d5 a4 Kd7 e4 Kc6 c4 g5 h4 b5 h5 f5 e5 g4 e6 b3 e7 b2 e8Q+ Nd7 c5 f4 a5 b4 h6 d3 a6 d4 a7 f3 Qb3 f2 Ra5 f1Q Qd1 b3 Qe7 Bg7 Rh3 Nf8 Ra3 Qc7 Qf6+ Ne6 Qf5 Ne7 Qe1 Qff4+ Kd1 d2 Ke2 d1N Qc3 d3+ Ke1 d2+ Ke2 Kb7 c6+ Kb6 Nf3 g1N+ Kd3 g2 Qc2 g3 Ra4 Ne2 Nh2 g1B Re4 g2 Qc4 N2d4 Nc3 b1N Rf3 b2 Rf2 Na3 Nf1 b1N Ne3 Nab5 h7 N1a3 Qfd5 Nac2 Qd7 Bh2 Ba3 g1N Bb4 Ngf3 Qb3 Nh4 Ncd5+ Ka6 Nf6 Kb6 Qc4 Re8 Qcd5 Bh8 Qh5 Rg8 Qf7 Rg5 Bc3 Rc5 Bb4 Qfd6 Rg4 Nb2+ Ke4 d1Q Bd2 Bf4 Be1 Qd8 c7 Qg8 Qd8 Bd7 c8R+ Nbc7 Qde8 Qa1 Qd8 Qa4 Qde8 Bb5 Qd8 Rb8 Qd7 Bf1 a8N+ Ka6 Nb6 Na8 Nbd5 Bh3 Nb4+ Kb6 Nc6 Rb7 Nd8 Rbc7 Nd1 Bd2 Ne3 Rh5 Rg3 Rh6 Rg4 Qdb4 Ke5 Qf8 Ke4 Qc4 Ke5 Rc5+ Ke4 Ng5+ Kf4 Nge6+ Kg3 Ka5 Ne8 Nhf3 Qf5 Bg2 Qh5 Qf5 Qf7 Kb6 Nf6 Qe4 Rg8 Qe5+ Kg4 Rh2 Rg5 Bh3+ Kh5 Qd6 Kh6 Nh4 Rg4 Qf4+
bQq5/n1r2N2/N3q1Rr/1q1Q2q1/k4N1R/2Pn2bK/Br1qR3/1r1n1r2 w - - 0 1 illegal: No possible last move, all moves rejected
4qQK1/nkn5/3q1Brr/1q2B3/q2P4/nQR1Qbn1/B2n2b1/R1r3bN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kc6 a4 b5 e4 f5 h5 g5 d3 b3 a5 b4 a6 b2 a7 g3+ Kf3 b3 h6 g2 e5 c3 h7 g4+ Ke2 f3+ Ke3 f4+ Ke4 g3 e6 c2 Kf5 f2 Kg6 f3 Kf7 Bb7 e7 Qe8+ Ke6 Na6 Bd2 c1Q Nc3 b1Q Na4 b2 Ra3 Qc5 Rh6 Qd6+ Kf5 Qa1 Be2 b1N Nb2 f1Q Ra5 f2 Bg5 Na3 Nh3 g1N Qb1 g2 Bf6 Nf3 Bg5 g1N Rf6 Nd2 Bh5 Ne2 Bf7 Ng3+ Kg6 Bh6 d4 Qb5 Nf4 f1B Nbd3 Bg2 Re6 Kb6 Nf2 c5 Bf6 c4 Qb3 c3 Re2 c2 Re3 c1R Rc3 Nc7 Nh1 Bbf3 Ra4 Bg5 Kg7 Kb7 Ng6 Be3 Be5 Bg1 Ra5 Qed7 e8Q Ne7 Bf6 Nc8 Qe3 Rb8 Ra4 Qe8 a8Q+ Kb6 Be5 Na7 Bc4 Rb7 Qd8 Kc6 Qf6 Rb6 Qf8 Kb7 Ra5 Qa8 Kf7 Rg8 h8B Qb8 Bhf6 Qa2 Nh8 Rg4 Ng6 Q8e8+ Kg8 Qc2 Qb4 Qca4 Ba2 Rc6 Qb3 Rc5 Bf4 Rh5 B4e5 Rh6 Qf4 Nac4 Bb1 Qab4 Ra1 Na3 Ba2 Q4a4 Qe3 Rgxg6+
b1qnb3/RB1PQ2b/b1BrN2q/3b2q1/4q1Q1/6B1/2kbR2Q/1r1n1r1K w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Na3 bxa3 h6 gxh6 Rb1 h5 Ra1 h4 Kf2 Kd7 e4 Ke6 d4 f5 g4 b5 Kg2 h5 a5 c5 g5 f3+ Kh2 h3 a6 b4 a7 h4 e5 Kd5 e6 Ke4 e7 b3 e8Q+ Ne7 d5 b2 d6 b1B g6 c3 g7 f4 g8B c2 Ba6 c4 Be3 c1Q Qd2 f2 Qb2 Kd3 Qg7 f1Q Bb7 a2 Qeg6+ Nf5 Qd4+ Kc2 Be6 f3 Qdg4 f2 Ba6 c3 Q6h5 Nc6 Bb7 Qfe1 Bc4 f1B Bg5 Bh6 Bb5 Qe4 Qg6 Bd7 Qf3 Ne3 Qgf6 Be8 d7 Rf8 Qg4 Qc8 Qg3 Nd1 Be2 Nd8 Bf3 Ba6 Bg4 Qd2+ Qff2 Rf3 Qfg2 Rb8 Ba8 Rb6 Bf4 Rd6 Ne2 Qdd5 Rg1 Qg5 Kh1 h2 Bb7 Nc6 Q2f2 Nd8 Kg2 h1B+ Kh2 h3 a8Q Kb3 Rg2 c2 Nd4+ Kc3 Kg1 c1Q Ne6 Qd2 Qd4+ Kc2 Re2 Bg2 Qgf2 Bh1 Bg3 Bg2 Qg7 Bh1 Qe7 h2+ Kf1 Qeg6 Qa7 Qa5 Bf5+ Rfd3 Nc5 Bb5 Qb8 Kc3 Ba6 Ba8 Be6 h1B Kg1 Qc2 Qa7 Bd2 Qf5 Qh6 Qh3 Bhb7 Bc4 Rf3 Bd5 Qca4 Qhe6 Bh7 Qg4 Kc2 Ne6 Qe4 Qf2 B7c6 Bb7 Bc4 Rb1 a1R Qh2 B6b5 Rb4 Rb1 Ra4 Ba2 Kg2 Bd3 Bdc6 Qag5 Ra5 Bd5 Ra7 Ba6 Kh1 Rf1#
1nN5/Bk2N2b/4nqBb/nrb1p3/K1Q5/1q1rq1N1/R1P3n1/1Q2rn1Q w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 gxf4 d4 f5 a4 fxe4 d5 h5 g5 c6 Ra3 cxd5 Rg3 d4 Rg4 hxg4 Kd2 b5 h4 e5 h5 d5 a5 Kd7 a6 Kc6 a7 g3 g6 d3 h6 b3 Kc3 b4+ Kb2 d2 h7 e3 g7 d4 Rh2 e2 Bg2+ f3 Rh6+ Nf6 g8Q e1Q Nh3 d3 Qg5 Bf5 Qf4 Qe3 Bf1 g2 Qd4 g1B Qc5+ Kb7 Ng5 f2 Bg2+ Nd5 Qc4 f1N Rh3 Bh6 Qe1 d1R Nf7 d2 Rh5 Qf6 Rh3 Rd8 h8Q Bh7 Be4 Rd6 Bd3 Nf4 Ng5 Ne6 Bg6 Rd3 Nc3 Bf2 Nd5 Bg1 Qg3 Re1 Ne7 Bf2 Qg1 d1N+ Ka1 b2+ Ka2 b1N Ne4 Nbd2 Ng3 b3+ Ka3 b2+ Ka4 b1Q Ba3 Bf8 Bc5 Nb3 Rh4 Na5 Re4 Bg8 Qhh1 Bh6 Bb6 Bh7 Rh4+ Nbc6 Rh3 Rad8 a8N R8d5 Ba7 Rb5 Nb6 Qb2 Nbc8 Qb1 Qhh2 Nb8 Qhh1+ Qef3 Bf5 Bc5 Bg6 Nde3 Rh4 Ng2 Rd4 Rd2 Rd3 Qb2 Ra3 Rd3 Ra2 Qc1 Qgd4 Qb1 Qb2 Qe3 Qa1 Qb2 Qb1 Qb3+
4r1Q1/1q1q4/5N2/1rbb1nBn/rn1PR3/k3nK1r/1r1p1R2/1RQ2BBn w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 h5 g4 hxg4 d4 a5 Nd2 axb4 Ne4 e5 Nf2 exf4 Nd3 cxd3 Kf2 Kd7 a4 Kc6 h4 b5 e4 g5 h5 f5 h6 d2 a5 b3 e5 f3 e6 g3+ Ke3 b2 h7 b1Q e7 f2 e8R f4+ Kf3 b4 a6 g2 a7 g4+ Ke2 Kb5 Ra6 c5 Qc2 f3+ Ke3+ c4 Re7 b3 Rae6 Kb4 Rc6 c3 Rg7 b2 Re7 g3 Rh4 Nd7 Ree4 Nh6 Rf6 Ka3 Bb5 f1N+ Kf4 f2 Re7 Bb7 Rfe6 Ne3 Be2 f1N Bf3 Nf6 Rf7 Nhf5 Rc6 Bc5 Ne2 g1R Bg2 Qd7 Rb6 Rhe8 h8B Rh1 Bh3 g2 Ng3 g1R Ne4 Rg7 Kf3 N1g3 Bf1 Rg5 Rb4 Nfh5 Be5 Bd5 Qd1 Be6 Nf6 c2 Re4 Bd5 Bf4 Rh4 Rb6 Nh1 Bh2 Rac8 Bg1 Rh3+ Ke2 Rc7 a8Q+ Ra7 Qb8 Ra5 Qg3 Ra4 Kf3 Qa2 Rb7 Qb3 Rb8 Qbb7 Rf8 Ka2 Rf7 b1R Ba3 Rb2 Qc1 Kb3 Bb4 Ka2 Ba5 Kb3 Bc7 Ka3 Bf4 Nfg7 Rf8 Rge5 Bg5 Ngf5 Qb1 c1N Qc2 Na2 Qc1 Rh2 Qg2 Nb4 Qg4 Nfg3 Qe6 Ngf5 Qg8 Rh4 Ra8 Ka2 Bb5 Nfg7 Ra7 Bc4 Nh7 Ra3 Rf5 Bd6 Nf6 Rh2 Rf4 Ngf5 Rg4 Rh3+ Rg3 Bf7 Bf1 Rb5 Ra5 Bc5 Ra4 Rh2 Rg2 Bd5 Rf2 Kb3 Ra7 Ra1 Ra2 Rh3+ Ke2 Rc2 Rb2+ Ka4 Rb1 Rb2 Re7 Kb3 Re6 Ra4 Re4 Rh2 Kf3 Ka3 Bd3 Rh4 Bf1 Rh3+
1Rnr1RNr/1q4N1/1b6/qn2k2b/1bnR2B1/qpQb1b2/QQ5P/4K1n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 a4 Ke7 c4 Kf6 e4 d5 c5 b5 a5 g5 c6 b3 a6 d3 c7 d2+ Ke2 b4 a7 d4 Ra4 b2 Qc1 d1N Ra5 g2 Qc2 d3+ Ke1 g3 Ra6+ Nc6 Qb3 d2+ Ke2 g4 Qc4 Nc3+ Ke3 d1B Ra1 Bb7 c8Q Ne5 Qd7 Nb5 Kd2 Qa5 Nf3 g1Q Ke1 g2 Qc1 g3 Ng5 Nc4 Nc3 b1Q Qdd2 Ke5 Qdb2 f5 Ne6 f4 Ra4 f3 Ng7 Qe3+ Be2 Rd8 a8Q Ne7 Rf1 g1N Nd5+ Qc3+ Qcd2 g2 Nf6 Nc8 Ng8 Bd5 Qc6 Bc5 Qa2 Qa3 Qb6 Bf7 Qb7 Bh5 Qc3+ Kf4 e5 b3 e6 Qe4 e7 Bb4 Qa7 Qb7 Qb2 Ke4 e8R+ Kd5 Re4 Kd6 Rd4+ Ke5 Bd3 Be2 Bf5 Bd3 Bg4 f2+ Kd1 Qab6 Ra6 Qba5 Rf6 Be4 Rf8 Bd5 Re1+ Be4 Re3 f1B Ke1 Bd3 Ref3 Bd5 R3f6 Bf3 Rb6 Qc6 Rb8 Qb7 Qb6 Nh3 Qh6 g1B Qhd2 Be3 Qg2 Ng1 Qa2 Bg5 Qab2 Bge7 Qa2 Bec5 Qgb2 Bb6
q2Rb1Q1/1n1r2N1/2qB4/k1b1p3/q2rb1B1/n2P1r1B/qQ1Rq3/b1K3Q1 w - - 0 1 legal: proof: c4 a5 f4 h5 e4 g5 b4 gxf4 g4 axb4 g5 f5 Nc3 fxe4 Nd5 d6 c5 dxc5 Ne3 c4 Ng4 hxg4 a4 Kd7 h4 Kc6 a5 Kb5 g6 c5 a6 e5 g7 b3 a7 g3 h5 g2 h6 f3 h7 f2+ Ke2 b2 Ra2 b1B Ra1 c3 Bb2 c4 Rh5 c2 Ra4 c1Q Ke3 Qc2 Ra3 Bd7 Bd3 f1R Rf5 Rf3+ Ke2 e3 Rb3+ Ka5 Qc1 b5 Nh3 g1B Rf4 c3 Nf2 b4 Ba1 Nf6 g8B Bc5 Be4 Nd5 Nh3 Nc6 Rh4 Nb6 Rb2 b3 Bg6 Nc4 Bh5 Be8 Rd4 Na3 Nf4 Qe4 Bc4 c2 Ne6 Bf2 Qh1 c1Q Qg1 Qeh4 Bg4 Be4 Ra2 b2 d3 b1Q Rd2 Qa2 Ng7 Qb8 Rd7 Nd8 Bd4 Nb7 Rd8 Rhf8 h8Q R8f7 Bce6 Rd7 Qg8 Be1 Rb2 Bc3 Rd2 Ba1 Bef5 Qcc4 Kd1 Qe6 Bh3 e2+ Kc1 Qc6 Bfg4 Qbc8 Qb3 Qb8 Qb2 e1Q+ Rd1 Qe2 Rd2 Qbd6 Be3 Qdd5 Bg5 Rc8 Be7 Qg8 Bf8 Rcc7 Be7 Rd4 Bd6 Rd7 a8Q+ Qa6 Qb8 Qgd5 Qa7 Qc6 Qb8 Qa8 Qc8 Qf6 Qb8 Qff7 Qc8 Qfb3 Qb8 Qba4 Qc8 Rdf7 Qe6 Rc7 Qg8 Rd7
6N1/qB1B1Q1q/n1qr4/2b1prP1/Q1r1r3/BRr4k/1K2bQbN/2b4n w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 gxf4 d4 f5 a4 fxe4 d5 h5 g5 c6 Ra3 cxd5 Rg3 d4 Rg4 hxg4 Kd2 Kf7 h4 Ke6 c4 Kf5 Kc2 d5 a5 b5 c5 e5 a6 g3 a7 f3 c6 Kg4 h5 b3+ Kb2 e3 h6 e2 c7 e1B h7 b4 Na3 g2 Qd2 f2 Qc2 d3 Nc4 d2 Rh2 d1R Na3 d4 Ne2 g1Q Nb5 d3 Nbc3 d2 Rh6 Bb7 c8B+ Qd7 Rh3 Nh6 Kb1 b2 Qa4 Na6 Rh5 Bg2 Qc2 Nf5 Qa4 Bc5 Nb5 Qc6 Kc2 b1R Rh2 Rb3 Ng3 Rc3+ Kb2 Rf8 Be6 Rac8 Nd4 b3 h8Q Rc4 Bd3 f1B a8Q Be2 Nh5 Bg3 Qg7 Re1 Rh3 d1R Qg8 Bf4 Be4 Rc7 Nf3 Rd6 Qa7 Bd2 Bf7 Ng3 Be6+ Rf5 Bd7 Nh1 Qf7 Rc3 Nf4 Qd4 Ng6 Bf4 Ne7 Qe3 Kb1 b2 Ng8 Rc4 Ka2 Qf2 Kb3 b1Q+ Bb2 Bc1 Nh2+ Kf4 Rd3 Qe3 Rc3 Kg3 Qb6 Qbd3 Ba3 Kh3 Bd5 Qde4 Ka2 Qh4 Rb3 Qh7 Ka1 Rc3 Kb1 Rb7 Qa7 Rb4 Qb6 Rbc4 Ka2 Qa8 Bb7 Qe4 Ka1 Qa7 Ka2 Qc6 Ka1 Bb4 Qf2 Bc5 Kb1 Red1 Ka1 R1d4 Ka2 Re4 Kb1 Bd2 Kb2 Bc1+
qbNq4/Nb6/b3r2n/Qp4Q1/N3P1B1/R7/KrQRbqrk/3n1b1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kc1 Kd6 Kb2 Ke5 h4 Kf4 e4 f5 a4 g5 c4 d5 h5 d3 a5 d2 h6 b3 h7 d4 c5 d3 a6 g2 c6 Kg3 a7 f4 c7 f3 Rh6 f2 Qc2 d1B Rh5 d2 Bd3 f1B Ra4 Nd7 Ra3 Nh6 Ra2 Bd6 Ra1 Nf6 Bb5 Bde2 Ba6 d1B Bb5 Nd5 Qc6 Ne3 Nf3 g1R Ne5 Rg2 Ba4 Ba6+ Nd2 b5 Rh1 Bde2 Qd5 Nd1+ Kb1 b2 Ndc4 Bcb7 c8N Bb8 Ka2 b1R Nc6 Rb4 Rg1 Kh2 Nb2 g3 Qc4 g4 Qc2 Re8 h8Q Re6 Qf6 Rb3 Qg5 Rb4 Nc4 Rb1 N4b6 Rb2+ Ka3 Rf2 Bb3 g2 Na4 g3 Ra2 Bd3 Bc4 Bfe2 Re1 g1Q Bd5 Bf1 Re2 Rg2 Rd2 Qf2 Bc4 Bde2 Bb3 Re7 Be6 Re8 Bg4 Re6 N8e7 Rg1 Nc8 g2 Ra1 Rh1 Ra2 g1Q Ra1 Bg3 Ra2 Rb8 a8Q Be5 Qa7 Ra8 Qb6 Bb8 N6a7 Qff8+ Ne7 Qgf2 Qa5 Bc7 Ra1 Rc8 Ra2 Bb8 Ra1 Rc5 Nec8 Qh8 Ra2 Rc7 Ra1 Rg7 Qg6 Kg1 Ne7 Qdg8 Bh5+ Bg3 Qg4 Qa8 Nec8 Qd8 Qh4 Rg4 Qg5 Bc7 Ra2 Rg2 Bg4 Kh2 Ra1 Rb4 Ra2 Bb8 Ra1 Rc4 Kb3 Rd4 Ra3 Rb4+ Ka2 Rb2+
rbq2rBr/3bRK2/1b5P/R2B2q1/2np3Q/1R2n3/2k3rq/3bQBNr w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Nd2 h5 Ndf3 Ke7 Be3 Ke8 Bf2 Ra3 Ne5 Ra8 Kd2 g3 Ng4 gxf2 Ne3 Ra6 g4 Ra3 g5 Ra8 Ng4 hxg4 Kd3 Ke7 Kc4 Ke6 e4 Ke5 h4 f5 a4 d5+ Kb3 b5 c4 d3 a5 Kd4 c5 d2 h5 f3 c6 f4 g6 g3 a6 g2 g7 Nd7 e5 Nh6 g8R Nf5 e6 Bd6 c7 Ne3 e7 Ne5 e8B N5c4 a7 Qg5 h6 Bd7 c8B Bb8 Be2 f1R Ra5 f2 Bf7 f3 Nh3 g1B Qc1 d1B+ Ka2 b3+ Kb1 b4 Be6 b2 Ka2 b1R Bb7 Ke4 Re8 Rb2+ Ka1 b3 Re7 Rd2 Bg8+ Kd4 Rh2 b2+ Ka2 Rc2 Rg2 Kc3 Rg3 Re1 Bd3 f1R Be2 Rf2 Bf1 Rg2 Qa1 f2 Bc6 Kd2 Kb3 Rc3+ Kb4 b1Q+ Kc5 Qbf5 Bb7 Rc2 Qd4+ Kc1 Qh4 Rc3 Rf3 Kc2 Rg3 Qf8 Kd4 Qc8 Rf3 Bgh2 Ng1 Bhc7 Kc5 d4+ Bbd5 Ng4 Rg3 Rf3 Rh3 Rf8 Rha3 Nge3 Rb3 B7g4 Kc6 Qcf5 Kc5 Qff4 Kc6 Qh2 Kc5 Bb6+ Kc6 Rf5 Kd7 Rf3+ Ke8 Bf5 Be2 f1Q Kf7 Qf2 Bf1 Qfg3 Bc6 Qc7 Bb7 Qc8 Bd5 Bf4 Ne2 Bd7 Ng1 Rb8 a8Q Rff2 Qc6 Ra8 Qe6 Bb8+ Nf3 Rg1 Qe5 Rfg2 Qe6 Rh1 Ng1 Ree2 Qe5 Ref2+ Qhf4 Qgg3 Kf6 Nf5 Qe1 Qgh4+ Qg5 Nfe3+ Kg6 Rf8 Qgg3 Re8 Kf7 Qg5 Qh4 Rf8#
R2n2qN/1k1nK3/3p1BRB/1qqP2b1/r1Q1b2r/2B4b/b1q2Q1Q/4n1b1 w - - 0 1 legal: proof: e4 f5 c4 fxe4 b4 g6 f4 a6 b5 axb5 f5 bxc4 f6 c3 g4 Nc6 Bh3 Nb8 Na3 Na6 Nb5 Nb8 Nd4 h5 Nf5 gxf5 g5 Kf7 Bg4 hxg4 Qe2 Ke8 Qf3 Rh7 Qd1 Rh8 Ke2 e5 Ke3 c5 h4 b5 d4 f4+ Ke2 e3 Kd3 e2 Ke4 e1Q+ Kd5 e4 a4 g3 h5 f3 a5 b4 g6 g2 a6 b3 g7 e3 a7 e2 h6 c4 h7 c2 Ra4 d6 f7+ Kd7 Rh6 Kc7 Ra2 c3 Rh2 b2 Ra1 b1B Rh1 f2 Rh3 f1B Bh6 c1Q Rg3 c2 Nf3 g1B Ng5 Nc6 Qd2 Bb7 Ke6 Be7 f8B Nf6 g8Q Nd7 Nf7 Bg5 Be7 Bh3+ Rg4 Qb2 Bf6 c1Q Qf4 Kb6 Qf2 Qec3 Qh2 e1N d5 Bc8 Qf8 Qc5 Bc3 Ba2 Bf6 Rg8 h8B Q1c2 Bc3 Kc7 Bhf6 Kb7 Nh8 Qbb5 Kf7 Bg2 Rg3 Be4 Rg2 Bh4 Rg6 Bg5 Ke6 Rg7 Qf7 Rh7 Qf8 Rb8 Qf7 Qg8 a8Q+ Kb6 Qa5+ Kb7 Qb4 Nd8+ Ke7 Ra8 Qc4 Ra4 Bg7 Rh4 Bh6 Bb3 Qf8 Rb4 Ra8 Ra4 Qf7 Ba2 Qe6 Nb8 Qf5 Bd7 Qff4 Bh3 Qff2 Nd7
qqk3r1/rN5n/Qp1Qbn1b/4b2N/2n3Rq/1B1Pbb2/5R1q/Q1KN4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 Kd7 e4 c5 a4 f5 e5 g5 d3 b6 Kd2 c3+ Kc1 f4 a5 b3 h5 f3 a6 f2 a7 c2 h6 c4 h7 b2+ Kd2 c1Q+ Ke2 c3 Ra6 g2 Qc2 g3 Qd1 g4 Rh2 c2 Rh5 Bg7 Nd2 b1N Rh1 Qa3 Nc4 c1B Rh5 Bch6 Rh2 Nf6 Nd6 Nd2 Qa1 Rg8 h8Q Nh7 Kd1 Qh4 Nh3 g1Q Rg2 Qh2 Be2 f1B Rf2 g2 Nb7 g1Q Ra4 g3 Rg4 g2 e6+ Kc7 e7 Be6 e8N+ Kc8 Qe5 Nd7 Qd6 Be5 Ng7 Ndf6 Nh5 Qa6 Bf3 Be2+ Kc2 Qaa1 Bd5 Bf3 Bb3 Q2g3 Qg7 Q1h2 Qh8 Qa4 Kc1 g1B Qg7 Rb8 a8Q Qa2 Re2 Bge3 Qa6 Ra8 Nf2 Ra7 Nd1 Qa4 Rf2 Qgf4 Qg6 Qe8 Qda3 Qd8 Qa1 Qa4 Bd5 Qc7+ Bc4 Qb8 Bb3 Qe8 Qg7 Qa8 Qf8 Qd8 Qfa3 Qd6 Qb4 Qdb8 Qd6 Nc4+
1Qb4q/4nN1p/kq5N/rr1r1R1Q/b1P2b2/rBnK4/1bQ1n3/N4B1b w - - 0 1 legal: proof: b4 a5 h4 axb4 e4 e5 d4 c5 a4 cxd4 Bb2 g5 Ra3 gxh4 Re3 d3 Bd4 exd4 e5 f6 e6 Nh6 Re4 Ng8 Re5 fxe5 Kd2 d5 f4 b5 g4 h3 c4 h2 g5 b3 g6 b4 a5 b2 g7 b3 f5 e4 e7 Kd7 e8Q+ Kc7 a6 Kb6 f6 e3+ Ke1 d2+ Ke2 d3+ Kf3 e2 Ke3 e1B a7 d4+ Ke4 Nc6 f7 Bg3 Bg2 Ka6 Qe5 Ba3 f8Q Nge7 g8N Bf4 Qf1 d1R Nh6 d2 Nf7 d3 Qf2 Nd4 Nh3 Ne2 Rf1 h1B Qh5 Rg8 Bf3 Rg5 Nh6 Ra5 Ng5 Qb6 Bg2 Qf6 Ngf7 Qh8 Nc3 b1N Nb5 b2 Nd4 Rc1 Qe8 d1B Nc2 d2 Na1 Ba4 Kd3 Nbc3 Be4 Rb8 a8B Rbb5 Bg6 Rc2 Bg2 b1Q Qg8 Bb2 Qd8 Bg4 Qb8 Bc8 B6e4 Ng3 Bc6 d1R+ Qd2 Nge2 Bd7 Bd6 Rf5 Bf4 Bdc6 Ba3 Bf1 Ra2+ Nc2 Qb4 Na1 Bb2 Bf3 Ra3 Be4 Rb1 Qc2 Qc5 Bf3 Qb6 Bg4 Ng3 Bd1 Nge2 Qd2 Rc5 Bb3 Rcb5 Qc2 Rc1 Bg2 Rg1 Bf1 Rg5 Rf6 Rge5 Rf5 Red5+
1bq2Rr1/QbR1p1r1/3K3b/B5n1/1QB1Nr1q/b2R2rn/3Bn1P1/6bk w - - 0 1 illegal: Other
1bbrRQRB/Qp4N1/b6r/8/Q2n2nR/2n2PbK/2Nr3q/r2kr1q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 h4 fxe4 a3 g5 Bc4 gxh4 Ba2 b3 Qd3 bxa2 Qf3 Ra4 Qd1 Ra8 Kf1 Kf7 c4 Ke6 g4 Ke5 Kg2 d5 g5 h5 g6 h3+ Kg3 e3 f3 e2 c5 e1R a4 d3 g7 Kd4 c6 e5 a5 h2 a6 e4 a7 d2 c7 Ke3 Qa4 h4+ Kg2 h3+ Kg3 d4 Qa3+ d3 Nc3 Nf6 g8Q Rh6 Nge2 Qd4 Qg7 Ng4 Qh7 Nc6 Qg6 Bd6+ Nf4 Qb6 Qb2 Nd4 Rb1 a1R Rg1 h1Q Qe8 h2 Qa2 Qb2 Rg2 Qg1 Qh8 h1R Nb5 R1h2 Qa4 Qa2 Bb2 d1B Bc3 d2 Na3 Be2 Qf8 d1N Rb4 Ba6 Rc4 Rb8 a8Q Qc2 Bb2 Nc3 Qa7 Qe2 Rb4 Kd2 Nc2 e3 Rc4 Kd1 Rb4 Bf5 c8R Qd2 Re8 e2 Rc4 Rd8 Rb4 Bc8 Rc4 Ne5 Ne6 Bb8 Ng7 Ng4+ Rc7 Rhd6 Rc5 Rhh6 Rh5 Rf1 Kh3 e1B Rh4 Bg3 Re4 Qe2 Re8 Re1 Qg8 Nf5 Re6 Bh2 Nh5 Ne4 Re7 Nge3 Rg5 Bg3 Qf8 Rd2 Re8 Ng4 Bh8 Nd4 Rg8 Nc3 Ng7 Qeh2#
4b2k/2P1rQ2/N7/3Qbrb1/1rRb2n1/1rQ2p1K/4bbBB/nNqBb3 w - - 0 1 legal: proof: b4 c5 a4 cxb4 e4 h5 g4 hxg4 f4 d5 f5 dxe4 f6 a5 Ke2 Qb6 Ra3 Qxf6 Ke3 Qf3+ Kd4 Qg2 Kc4 Qf2 Kb3 Bd7 Kb2 Bc8 Rc3 b3 Rc4 Bf5 Rd4 Bc8 Rb4 axb4 h4 g5 c4 f5 c5 Kf7 a5 Kg7 a6 b5 a7 e5 h5 e3 c6 g3 c7 g2 Ne2 g1B d4 g4 d5 e4 d6 f4 d7 f3 d8Q g3 Nd2 g2 Rh3 Nc6 Kb1 b2 Kc2 b1R Qd7+ Be7 Nb3 Nf6 Rh1 Ba6 Q7d2 Rhf8 h6+ Kh8 h7 Na5 Rh4 Rae8 a8B Ng4 Qd3 Rf5 Qc4 Qe1 Rh1 Bg5 Qc6 Bf2 Ng3 g1B Rh4 e2 Qdd6 e3 Kd3 Re7 Nd2 b3 Qe6 b4+ Ke4 b2 Qd5 Nb3 Bg2 Na1 Bc6 b3 Ba4 Qf1 Nh5 e1B Nf6 e2 Nd7 Bd4 Nc5 Be5 Qf7 Bc4 Na6 Bgd4 Rh6 Bef2 Rc6 e1B Rc5 Be2 Rc6 Nc2 Rc4 Ra1 Nb1 Ra3 Bf4 Na1 Nd2 b1R Bh2 b2 Bd1 Rc1 Nb1 Rb3 Ra4 Rc6 Rc4 Rcb6 Qfe6 Rf8 Qf7 R6b4 Kf5 Bc1 Nd2 b1B+ Kg5 Bf5 Kh5 Bd7 Nb1 Ne3 Kg5 Be8 Kh5 Nec2 Kg4 Bg5 Kh3 Ne3 Qg6 Ng4 Qge6 Rf5 Qed7 Kg7 h8Q+ Kg6 Qf6+ Kh7 Qff7+ Kh8 Q7c6 Bec3 Qcc5 Qe1 Qa5 Qd2 Qa3 Qc1 Qb2 Bcd2 Qc3 Bde1
1bK3bN/r2B3n/b5n1/2B1q1n1/1p3qnN/QBrRr1Pk/3qqQ2/6Q1 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ra3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 b5 e4+ f3 g3 f5 a5 h5 a6 b4 a7 h3 e5 h2 c5 h4 e6 h3 c6 a2 c7 a1Q e7 d3 Kd6 d2 Qc2 d1R+ Qd3 f2 Bh6 f4 Nf3 Re1 Qc3 Nc6 Bd3 f1Q Bh7 Ne5 Qc4 Nf6 Qc6 Ba6 c8Q Qe2 Bd3 Ng6 Bc4 Nh7 Rf1 h1B Ba2 h2 Rf2 Kh3 Qd5 Qae5+ Kc5 Bg2 Qb8 h1N Rf1 Nf2 Nbd2 Ng4 Nh4 f3 Bb3 f2 Ndf3 Rg8 Rg1 f1Q Qb6 Rg7 Be3 Rc8+ Qc7 d6+ Kb6 Bh1 Qe4 d5 e8B d4 a8Q d3 Qd4 d2 Bd7 d1N Qa1 Bg2 Bc5 Nc3 Qb2 Qdg5 Qca7 Bd6 Qb1 Qgd2 Ng5+ Kh2 Qf5 Bd5 Nf7 Qff4 Nh8 Bb8 Rf1 Ne4 Rf3 Re7 Rd3 Kh3 Qf7 Neg5 Qf8 Qff1 Qf2 Bg8 Qg1 Qff4 Qf3 Bb7 Qa3 Ba6 Qff2 Rf7 Be3 Rc3 Bc5 Qed1 Kc6 Re3 Kb6 Q1e2 Kc6 Bb5+ Kb7 Re7 Kc8 Rf7 Bde6 Ra7 Bd7 Ba6+
nrB1q2b/r1np4/6Nr/n1K1B3/4N1q1/3Nq2q/Q1RPkbn1/2Q3Bb w - - 0 1 legal: proof: f4 a5 g4 h5 a4 hxg4 b4 axb4 f5 c5 f6 c4 Ra2 exf6 Rb2 f5 Rb3 cxb3 Bg2 f4 Bh3 Qa5 Bf1 Qd8 Kf2 Ke7 c4 Kf6 h4 Kf5 a5 Ke4 a6 b5 e3 f5 c5 g5 h5 f3 c6 b2 a7 f4 c7 b3 h6 b4 h7 g3+ Ke1 g4 Rh3 f2+ Ke2 g2 Nf3 g1B Ne5 g3 Rh4 g2 Nc4 Ne7 Nca3 Qe8 Rh1 Na6 Qe1 f3+ Kd1 Nd5 Bc4 f1N Be2 f2 Nc4 Bg7 Ne5 Bb7 c8N Nb6 Bb5 Nc7 Nd3 Kf3 Nc3 b1Q e4 b2 e5 b3 e6 Qa2 e7 b1N Bb2 Ne3+ Kc1 f1Q Ba6 Na3 Ne4 Bf2 Bd4 g1Q Rh5 Rb8 a8Q Qg4 Rc5 Qfh3 Rc2 Ng2 Kd1 b2 Be3 Rg8 h8B Nac4 Qh1 Bd4 Be5 Rg6 Qa7 Na5 Qf1 Qeh8 e8Q Qa3 Ne7 Rh6 Ng6 Nba8 Qe6 Qd8 Qa2 Qe8 Qc5 Bd5 Bc8 Rb7 Qh1 Ra7 Qe1 Qb3 Qca3 b1R+ Qc1 Bg3 Bg1 Bgf2 Beh2 Bh8 Be5 Qf4 Ndc5 Qa4 Nd3 Rb8 Qe3+ Kg4 Nec5 Nh4 Ke2 Bh1 Ne1 Ng2 Kd3 Qae4+ Kc3 Qfg3 Ned3 Qf5 Qd4+ Kf3 Ne4 Qgg4 Qb6 Ke2 Kb4 Nb5 Qd4 Nbc7+ Kc5 Qff3 Qe3+ Qxe3+
4b2r/N2kN1n1/3N1n2/n2bB2Q/7r/1nq1p1QR/2rQPn1b/1n2K1Rb w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 bxa3 g4 c5 g5 cxd4 g6 h5 Nf3 h4 Nfd2 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bf4 g4 Bh6 Qc7 Bc1 Qd8 f4 Rh5 h4 e5 c4 b5 c5 g5 f5 d5 c6 g3 f6 e4 c7 g4 Kd2 a2 Qa4 d3 Kd1 d2 Ba3 e3 Qd4 b4 Nh3 g1R+ Kc2 d1B+ Kc1 b3 Nd2 g2 Qc5 g3 Nb1 d4 Ng5 d3 Rh3 d2+ Kb2 Bb7 Kc3 b2 c8Q Bb3 Q5f5 d1B Qc2 Nc6 Bd6 Na5 Bb4 Bd6 Qb8 Qc8+ Bc5 Be4 Qb6 Bbd5 Qd2 Ba4 f7+ Ke7 f8N Nf6 Na3 Rc1+ Nc2 g1N Qb8 g2 Nf7 Nf3 Ng6+ Ke6 Ne7 Bh2 Qg3 Nd4 Nd6 Nf5 Rb1 Rh6 h5 Ng7 Ra1 Rh7 h6 Bf3 Rb1 a1N Kd3 Bd7 Na3 N1b3 Bd4 Rc5 Rc1 b1N Nab5 Rc4 Be5 g1N Rh5 Rc5 Na7 Nh3 Rg1 Bh1 Rh4 Rc7 Rh5 B7c6 Kc2 Nf2 Rh4 Rb8 Rh3 Rb4 Qg5 Rh4 Qg3 N2e4 Kd1 Nf2+ Ke1 Be8 Bb2 Rc2 Be5 Rh8 h7 Rf8 h8Q Kd7 Qh7 Rh8 Qh5 Qc3
1RrK1QRN/4np1b/1b1nb2N/knr3b1/3Q1nN1/1R2P3/6r1/2b1qb1B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 b5 Kd3 d5 c4 Kd7 h4 Kc6 a4 Kb6 h5 g5 c5+ Ka5 c6 b3 h6 b4 h7 g2 c7 b2 Qc2 g3 Qc1 g4 Qc3 Na6 Qb3 Ra7 Rh4 Qe7 Qc2 b3 Qc3+ Nb4+ Kd2 d3 Na3 b1N+ Kd1 b2 Qc1 d4 Qe3 d2 Ra2 Be6 c8R Bh6 Rc7 Nd5 Kc2 d1B+ Kd3 Nf4+ Ke4 d3 Ke5 d2 Qd4 Nc3 Rc6 b1B Nf3 g1B Rb2 g2 Nc2 g3 Rb3 Be3 Rg4 g1B Nh2 g2 Rc8 Ne4 Rcb8 Rc7 Rg6 Nd6 Ng4 Bg5 Nh6 Bgf2 Rg7 g1R Bg2 Qe8 Bh1 Ne7 Rg6 Rf8 h8N Rg2 Rg8 Bg1 Qa1 Bb6 Ne3 Bh7 Neg4 Bge3 Qd4 Bdc2 Rd8 d1N Rb8 Bc1 e3 Qc8 Qa1 Bcd3 Qd4 Ka6 a5 Bf1 Qb4 Nc3 Qd4 Ka7 a6 Ncb5 Rb2 Qb7 Rb3 Rfc8 Nh2 Bc5 N2g4 Kb6 a7 Ka5 a8Q+ Qa6 Qc6 Bb6 Qe8 Nc3 Qf8 Qe2 Qg7 Qe1 Qf8 Nh3 Qc4 Ncb5 Qd4 Bf4+ Kf6 Rc5 Rc3 R8c7 Rb3 Bg5+ Kg7 Nf4 Qd8 Qb4 Kf8 Nb7 Ke8 Qe1 Q4d6 Neg6 Qf8 Ne7 Qd4 N7d6+ Kd8 Rc8#
2bN2Q1/r1Q5/5B2/N2r1Nqr/bn1p1R2/R1KnR1Pq/r5bk/2b2b1b w - - 0 1 illegal: No possible last move, all moves rejected
1Bn2nK1/1bb1Q1Q1/B3R1n1/2Np2n1/3Q2q1/b2N1knB/1P4bq/n1rr4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bh3 g3 Bf1 g2 Ra3 cxd6 Bd2 d5 Bc1 d4 Rg3 fxg3 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 h5 a5 h6 d5+ Kb5 g5 c4 f5 e3 g4 c5 a3 h7 d3 c6 a4 c7 d2 Be2 a2 Nf3 a1N Qf1 g1N Kb6 d1B Bc4 a3 Qh3 f4 Be2 g2 Kb5 a2 Qh4 g3 Qh6 Ne7 Kc5 Bb7 c8B Qd7 Qa6 Qg4 Kd6 Nh3 Bb5 g1B Na3 g2 Ne5 f3 Nc2 f2 Nb4 f1N Qa4 Bf3 Ned3 Ng3 Ba6 Ng5 Rh6 Nd7 Re6+ Ne5 Bd2 Nb3 Bc3 Rg8 h8Q a1N Qg7 Nd4 Qd1 Bh2 Nc5+ Kf5 e4+ Kf4 Be1 N5g6 e5 g1Q Nbd3+ Ke3 Ba5 Bg2 Bc7 Rb8 Bd7 Rc8 Bb8 Rc7 Qd2+ Kf3 Bc8 Rc6+ Kd7 Rc7+ Ke8 Rh8 Bd7 Nc8 Qb4 Nde2 Qd4 Nef4 Rb6 Qf2 e6 Rh3 e7 Nfe6 Ne4 Rc1 Nec5 Bg1 Rc6 Rh1 Rb6 Bh2 Rd6 Nh3 Kf7 Nhg5+ Kg8 Rhd1 e8Q Be7 Rb6 Nef8 Re6 Bd6 Qee7 Qg1 Nb3 Ba3 Nbc5 Nf1 Re2 Bc7 Bf5 Qh2 Re6 Qgh4 Bh3 Ng3 Qg1 Qe4 Q1d4 Qg4
nqn5/2rQ1brn/K1qB2Bb/2PRR3/8/bn3p1n/QnR1B1k1/2N3b1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 h4 d5 c4 f5 a4 g5 a5 d3 a6 f4 e3 d2 a7 g4 h5 b3 h6 b2 h7 b1N Rh5 d4 Rh1 d3 Nh3 g1N Qb3 Kf3 e4 d1Q e5 g2 e6 g3 e7 Nd2 e8Q Be6 Qg6 Bh6 Qc2 Ne7 Qe8 Ne4 Qc3 Qc2 Qd2 Rg8 h8R Nf6 Qf7 Nc8 Ba3 Nbd7 Rd1 Nh7 Re1 Rg7 Qf5 Ndb6 Qc5 Bf7 Qdb4 d2 Rg8 d1N Re6 Nb2 Nf2 Nh3 Qg5 g1B Rh2 g2 Nd3 Bc5 Qa4 g1B Qe7 Qd6 Qb3 Qb8 Qd7 Kg3 Ree2 f3 Nc1 Qg6 Re5 Qc6+ Ka5 Bd6 Rd2 Bf8 Be2 Kg2 Bd6 Be7 Bc7 Ba3 c5 Nd5 Re6 b5 Qa2 b4 Rc2 b3 Rd8 Ndb6 Re4 N2c4+ Ka6 b2 Re5 b1N Bd6 Nbd2 Rd5 Nb2 Re8 Nb3 Re3 Qbc7 Ree5 Rb8 a8B Rb7 Qe7 Qb8 Qd8 Qe8 Qd7 Rc7 Bc6 Na8 Bcb5 Qd8 Bbd3 Qf6 Bg6 Ncb6 Be7 Qc6 Bd6 Nc8+
Q3r2K/1Q6/Brb4P/1rN1q3/2RbrN1p/B1bBn1b1/4q2r/Nr1nk3 w - - 0 1 illegal: No possible last move
2Q4N/Q1rrR1br/1Q2BrBN/3p1b2/n1q1qr2/1p6/1bPk2K1/2Nq2n1 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 e5 a4 exf4 Na3 c5 Nb1 cxd4 Ra3 h6 Rg3 f3 Bf4 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 Kf2 Ke7 h4 Ke6 e4 Ke5 g7 f5 a5 d5 a6 b5 h5 b3 h6 b2 a7 d3 h7 Kd4 e5 g4 e6 b4 e7 d2 e8Q Qe7 Nc3 b1R Bh3 g3+ Kf1 Ke3 Qg6 f2 Na4 Nf6 g8B Qe4 Qh6 Na6 Nb6 Nd7 Qh5 Nac5 Qc1 Ne5 Qg5 Bg7 Qd8 Nf3 Qd6 Na4 Kg2 f1R Qb2 d1Q Qbe5 Kd2 Qc7 b3 Qd8 Ra1 Ne2 Ra3 Bg4 Ng1+ Bf3 Rb8 a8Q Rb7 Qab8 Rd7 Rh3 Ra2 Kh1 g2+ Kh2 Rf2 Bh5 f3 Qdc7 f4 Qe6 Rf1 Bg6 f2 Qbb7 f3 Qa7 Ra3 Qc4 Rc7 Qd6 Bf5 Be6 Rd8 h8N Rdd7 Nc1 Ra1 Qca6 Qf4+ Rg3 Qe2 Qf8 Be4 Qc5 Qc4 Qd6 Ne2 Nd3 g1B+ Kh3 Bh2 Nc8 Rh1 Ne7 f1R Be8 f2 Ng8 Qe5 Rf3 Ng1+ Kg2 Bg3 Qdb6 Rh7 Bf5 Bh4 Qg6 Bhf6 Nh6 Qe6 Bf7 Bb2 Qc8 Rae1 Nc1 Bd3 Qc5 Re4 Qa7 Qe7 Qgb6 Re6 Kh2 Rf6 B5g6 Bf5 Bg8 Qe1 Re3 Qee2 Re7 Qee4 Qca8 Rd1 Be6 f1Q Kg3 Qfe2 Qf8 Rf1 Qc8 Qd1 Kh2 Rf3 Kg2 Rf4+
2N1B1r1/6bQ/B1R2B1q/pb3Q2/1q1rqr2/p1K1R3/r2P1br1/nkn4Q w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 fxg3 Qc2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Qb3 Bh3 Qd1 Bc8 e4 Ke7 b4 Ke6 h4 Ke5 b5 Kd4 h5 f5 e5 c5 e6 g5 b6 g4 h6 f4 h7 c3 e7 c4 e8B f3 b7 f2+ Ke2 c2 Bh5 c3 Bf7 Qg5 Rh3 Nh6 Ra2 Nc6 b8Q Rg8 h8Q+ Ne5 Ra3 Bg7 Bc4 Ba6 Ra2 Nf5 Qh6 Nd3 Qh8 Ne3 Bf7 Qh6 Bb2 c1R Rh4 Nc2 Ra3 Na1 Nh3 g1B Ra2 g2 Ba3 c2 Nf4 g3 Bd6 a3 Qc7 Rad8 Qh7 Bc4 Qb7 a5 Qc7 Rb1 Rg4 c1Q Rg5 Qc2 Qe1 Rb2 Nd5 Nc1+ Kf3 Qa4 Be7 Qb4 Qd7 Bd3 Be2 Kc4 Ke3 Kb3 Qdf5 Kc2 Bg6 Kb1 Nb6 Rd4 Be8 Rc2 Bf6 f1R+ Qef2 Ba6 Nc8 Bc4 Bf3 Bd3 Bb7 Bb5 Ba6 Bh2 Bb7 g1R Q2f3 g2 Ba6 Bg3 Qh5 Rff4 Qh1 Rgf1 Rh5 R1f2 Rh3 Bh4 Rg3 g1Q Rf3 Ne2 Rh3 Qe1 Rg3 Rg2 Rf3 Rc4 Kd3 Bf2 Rb2+ Kc1 Rb3 Ra2 Rc3+ Kb1 Rh3 Rce4+ Rc4 Qe7 Rf3 Nc1+ Kc3 Qf8 Rd3 Rd4 Rc6 Qe4 Re3 Qb4#
b1K2n2/BnN5/Qb1qq2Q/1RpnB1P1/1r3R1n/2q3bQ/3R3p/rk2r3 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 g5 Nc3 g4 Nb1 dxc6 Nh3 c5 Ng1 c4 g3 h5 h4 Be6 Bh3 Bf5 Nc3 Bc8 Ne4 Bd6 Nf2 gxh3 g4 Be7 g5 Bf8 Ng4 hxg4 Kf2 Kd7 e4 Kd6 d4 b5 a4 f5 h5 b3 e5+ Kd5 e6 Ke4 e7 g3+ Ke2 b4 e8Q+ Ne7 h6 f3+ Kd2 f2 h7 f1R d5 b2 a5 b1Q a6 b3 Kc3 b2 Kb4 h2 Kc5 f4 a7 g2 d6 c3 d7 f3 Bd2 Kd3 Qc1 c2 Ra4 f2 Qg6+ Nf5+ Kd5 Bb7+ Ke6 Bd6 Qh6 Bg3 Ra1 Nh4 Ba5 Re1+ Ne2 g1B Qh5 f1Q Ra2 Qf3 Bd2 Bb6 Ra4 Qa2+ Rc4 b1N Qa3+ Qb3 Qh6 c1N Be3 Nc3 Nd4 Nd5 Nb5 c6 Rb4 Kc2 Rf1 Nd3 Nc7 Kb1 Rb5 Rf8 h8B Rf4 Qa6 Rb4 Be5 Nc5+ Kd6 Qe4 Rf4 Qbd3 Bf2 Qh8 d8R Nbd7 Qa3 Nf8 Rd7 Qd1 Qf3 Qc4 Qg4 Qc3 Qh3 Qg8 Rd8 Ne3+ Ke7 Qd6+ Ke8 Nd5 Be3 Rc8 a8Q Rb8 Qa4 Ra8 Qa6 Ra7 Rd7 Qge6+ Kd8 Ba8 Kc8 Nb7 Bg1 Nd8 Qb7 Ra1 Qa6 Ba5 Ba7 c5 Rf2 Bb6 Rd2 Qg8 Rf7 Nb7 Rf4 Qge6+
4bn1B/2B1r3/b2P1qNQ/5pQR/2B1q1q1/Knk1b1Qr/1p2rn2/rR6 w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 h4 gxh4 f4 e5 Na3 exf4 Nc2 b5 Nd4 bxa4 Nb3 axb3 g4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 c5 Kb2 h5 b5 a5 g5 f5 g6 h3 g7 c3+ Ka3 Kc4 b6 h2 b7 b2 d5 f3 d6 h4 Ra2 h3 Ka4 c2 Bg2 f2 e4 f1R e5 Rf2 e6 Nf6 g8Q Ng4 Qe1 Nd7 b8B Ra7 Qf7 Bh6 Qe3 Nf8 Qf3 Ba6 Bf4 c1Q Qe3 Qd1+ Ka3 a4 Be5 Rh7 Qg3 Be3 e7+ Kd3 e8Q c4 Qg7 c3 Qge7 c2 Q8d7 c1N Bf6 Nb3 Kb4 a3 Ra1 a2 Qee6 Rc2 Be5 Nf2 Qdg7 Qg4+ Ka3 Rd7 Bf3 Re2 Rb1 Qdg5 Qgg6 Rde7 Bh8 Rh6 Qeg8 Qf6 Bc7 Kc3 Bd5 Rh5 Nf3 Rh6 Rhe1 h1B Nh4 h2 Bc4 Bc6 Rh1 Be8 Q6h7 Rh5 Qg5 Rh6 Ng6 Rh5 Rhf1 h1Q Qhh6 Qhe4 Rh1 Rh3 Qf3 Rg3 Rh5 Rh3 Qg3 a1R+
b2N1Q2/2r5/3B1Nr1/RbbnK1p1/n1P2n1Q/3r2p1/1kbQN2b/3B1q1b w - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 Kd2 Ke7 Kd3 Ke6 Ke4 b5 h4 d5+ Kf4 g5+ Kg4 Ke5+ Kf3 f5 e4 d3 h5 Kd4 e5 f4 h6 b3 a5 d2 a6 b4 a7 b2 e6 b3 h7 Bb7 e7 Na6 e8Q Nb4 Qb5 Nd3 Qe8 Bc5 Nc3 b1B Ba3 b2 Qd7 Qf8 Qc8 Ne7 Rh6 Rg8 h8N Rg6 Qd7 Rc8 a8Q Rc7 Qac8 Ba8 Qe2 d1R Kg4 f3 Na2 f2 Qa6 Nf4 Qd8 Rd3 Nb4 Kc3 Qa4 d4 Nf7 Ned5 Kf5 Ba2 Qd1 b1B Be2 f1B Ke5 Bc4 Qb8 Bb5 Nd8 Qf7 Bg4 Be2 Rh7 Bf3 Qc1 Be4 Bd1 Qf8 Rf7 Bf3 Rf5 Qf7 Nh3 g1B Qc8 Bh2 Ng1 Bh1 Ne2+ Kc4 c3 Bc2 Qd2 Qf8 Qa7 Kb3 c4 Rc3 Qaa6 d3 Qf6 Qf7 Qh8 Qf8 Qh4 Qf7 Qe3 d2 Qf2 Rd3 Qd7 Nc3 Nd5 Na4 Bb4 Kb2 Nf6 Qh7 Qe8 Qh5 Qg2 Qf3 Qf8 Qf1 Qf2 Be3 Bd6 Bc5 Qe1 Bb3 Bc2 d1N Qd2 Ne3 Bd1+ Bc2 Qe1 Ned5 Qd2 Nh3 Rf3 Rd4 Ra3 Nhf4 Ra1 Rd3 Ra3 Nab6 Ra5 Na4
2krnnK1/1b1n4/p2b3R/1p2n1NQ/B1q1P2R/7r/2rn2N1/Nr2RrQ1 w - - 0 1 legal: proof: f4 e5 d4 exf4 a4 g5 h4 gxh4 Nc3 c5 Nb1 cxd4 b4 Nc6 a5 Nb8 a6 bxa6 b5 Bc5 Ra4 Be7 Ra1 Bf8 b6 Bg7 b7 Qa5+ Bd2 Qd8 Ba5 Bf8 Bb6 axb6 Kd2 f5 Kd3 d5 c4 Kd7 g4 h5 e4 f3 c5 f4 g5 b5 g6 h3 g7 f2 Rh2 f3 Rh1 h2 Qe2 h4 Qd2 h3 Nc3 Bd6 Nd1 Nf6 g8N Ne8 Qe3 Qc7 Be2 f1R Ra2 f2 c6+ Kd8 Nf3 Nd7 b8Q Nf8 Qa7 Bb7 Ra4 Kc8 Nh6 Rg8 Ra3 Rg2 Ng5 Qf7 Rg1 h1N c7 h2 Ng4 Ng3 Qf3 h1R Nge3 Rh3 Nc2 Nh5 Na1 Nhf6 Ne3 N6d7 Qh5 Rb1 Ra2 f1N Bd1 Nd2 Re1 Re2 Ba4 Rg2 Kc2 d3+ Kc3 Re2 Rb2 Rf2 Qc5 d4+ Kb4 Rf1 Ng2 Rc1 Rb3 Rc2 Rc3 Nc4 Ra3 d2 Rf3 d1R Rf6 d3 Rh6 Be5 Qa7 d2 Qg1 Rdc1 Re2 d1N Re1 Ndb6 Kc5 Nde3 Nb3 Ng4 Na1 Bd6+ Kd4 Kd7 c8R Nd2 Rc6 Rd8 Rh7 Bg3 Rch6 Rb1 Rh8 Bd6 R8h7 Nh2 Rh8 Kc8 R8h7 Ba3+ Ke5 Qc4 Rh8 Nhf3+ Kf5 Ne6 Kg6 Bd6 Kh7 Ne5 Kg8 Nbd7 R8h7 Rf4 Rf7 Rf2 Rf4 Rf1 Rh4 Nef8+
7k/1N1pnB2/1nbQ1nBr/5NBp/1n1Kbb1q/Q4r1b/2R2bQP/5n2 w - - 0 1 legal: proof: e4 e5 b4 g5 d4 exd4 c4 f5 f4 fxe4 a4 a6 b5 axb5 f5 bxc4 Ra2 c3 Rf2 Ke7 Rf3 Ke8 Rf4 gxf4 Ke2 Kf7 g4 Kg7 g5 b5 a5 c5 g6 h5 a6 c2 a7 b4 Bh3 b3 Qe1 d3+ Kd2 e3+ Kc3 c4 Qd2 f3 Bf1 e2 Qf4 e1N Nd2 b2 Ne2 b1B Qg5 f2 Ng1 Bc5 Ndf3 d2 Bd3 d1B Bf1 Nd3 Bh3 f1N Qf4 Nf6 Nd2 Rh6 Ne2 Ne5 Nb3 Kh8 Na5 Nbc6 Nd4 Bg4 Nb7 Ne7 Qe3 Rb8 a8Q Bb6 Bg2 Bh3 Be4 Ba7 Bd2 c1N Qf2 Bb6 Bg5 Ncd3 Qg2 Nb4 Qa6 Bc5 Qd6 Ra8 Rg1 Ra2 Rh1 Rf2 Bd3 Rf3 g7+ Kh7 g8B+ Kh8 Bf7 Bb6 Nc2 Bf2 Ne3 Bc2 Kd4 c3 Rg1 Nc4 Be4 Nb6 Bd3 Nd2 Rc1 Nf1 Be4 Ba4 Rc2 Bc6 Bd3 Nh7 f6 Be4 Ra2 c2 Rb2 c1B Rc2 Bc6 Bdg6 Be4 Bc4 Bd2 f7 Nf6 f8Q+ Neg8 Nc5 Bcb7 Bcf7 Bbc6 Nb7 Qe7 Qa8 Qd8 Qa3 Ne7 Qc5 Qc7 Qd5 Qg3 Qc5 Qh4 Qd6 Bfe1 Nf5 Bf4 Rb2 Beg3 Rc2 Bf2+
bQb2Nk1/K3n3/n1Nr1p2/R1n1rn2/1R2b1q1/1Rbr1p1P/4n3/2QB2Q1 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 g4 a5 d4 axb4 g5 cxd4 Ba3 bxa3 g6 hxg6 Bh3 g5 Bf1 g4 Kf2 d5 e4 b5 c4 g5 c5 b4 c6 b3 a5 g3+ Ke2 g4 Kd3 a2 a6 f6 e5 Kf7 c7 g2 h3 b2 a7 g3 Qf3 Rh5 Qe3 Qd7 Ne2 g1N Qf2 g2 Na3 b1B+ Nc2 Qg4 Rh2 Na6 Qf3 Ne7 e6+ Kg8 Rh1 Re5 Qe3 Nf3 Qg1 Nh4 Rh2 f3 Nf4 Nhf5 Ng6 Bh6 Rh1 Bd2 Be2 Bc3 Bd1 Rb8 a8Q Rb6 Nf8 Rd6 Qe3 g1N Qb8 Ne2 Qg1 Bb7 c8Q Ba8 Qc5 Bb2 Kd2 d3 Nb4 d4 Qc1 Bc2 Rb1 a1N Nc6 Bb3 Rh2 Bd5 Rg2 Be4 Rg3 Ba3 Rb3 Bb2 Na5 Beb7 Nc6 Bc8 Rb4 Nc5 Rb3 Nc2 Rg2 Nb4 Rf2 Ned5 e7 Nba6 e8R Nde7 Rd8 Ba1 Rd7 Bb2 Rdb7 Ba1 R7b4 Bb2 Ke1 d2+ Kf1 d3 Rh2 Ng7 Kf2 Bc3 Rg2 Qe6 Rg5 Qg4 Bc2 d1B Rh5 Ne4+ Ke3 d2 Rg5 Bd4+ Kd3 Nec5+ Kc4 Bc3+ Kb5 Rd3 Rh5 Ngf5 Kb6 Rd6 Ka7 Rd3 Bb1 Bc2 Ba2 Rd6 Bb1 Be4 Bc2 d1R Rg5+ Ng7 Rh5 R1d3 Bd1 Ree6 Re5 Ngf5 Rd5 Na4 Rc5 Re5 Ra5 N4c5
B4b1Q/n1B1p2r/qb2Kq1R/4N1qb/q1p1qr1Q/Nn5Q/2P4B/2k3q1 w - - 0 1 legal: proof: b4 h5 f4 a5 g4 hxg4 a4 axb4 e4 g3 e5 g2 e6 dxe6 f5 exf5 Ra3 f4 Rg3 fxg3 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 f5 h4 b5 h5 g5 d3 b3 a5 Kb4 d4 c5 h6 g4 a6 f4 d5 f3 h7 b2 a7 f2 d6 Qe8 d7 Nc6+ Kd5 Nf6+ Ke6 Ne4 Bc4 f1Q Rh2 Nd2 Rh3 Nb3 Nd2 Kc3 Ndf3 b1Q Nh4 b4 Bh6 Kb2 Ba6 Qa1 Ngf3 g1B Qd2 g2 Kd5 g3 d8B Bg4 Qg5 Bh5 Nd2 Kc1 Ba5 Qg7 Bc8 Qa6 Bd8 c4 Ke6 Bb6 Nhf3 g1Q Qh4 g2 Bc7 Qe3+ Ne5 g1Q Bb7 Qe4 Rh2 Q1g5 Nb1 Rc8 a8Q Na7 Qb8 Qea4 Ba8 Rd8 Rh3 Rd1 Qb7 Rf1 Na3 Rf4 Qc6 Na5 Qb7 b3 Qc8 b2 Qd7 b1Q Qd3 Rg8 h8Q Nb3 Rh2 Qa1 Qdh3 Qad4 Qh7 Rh8 Qg8 Rh7 Qh8 Qgg1 Bg5 Qde3 Rh1 Rf1 Bf4 Q1g5 Bh2 Qe1 Rg1 Rf4 Rg2 Qg1 Rg4 Q5h6+ Rg6 Qhg5 Rh6 Q7f6+
1b2br1Q/2QK2b1/2rNP3/nb5N/2pq1rR1/b1Bq1p1n/R1Q5/r2N1k2 w - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Ba3 f3 Qb3 g3 Bg2 fxg2 Bc1 axb6 Qa4+ b5 Qd1 b4 e4 Kd7 Ke2 Kc6 Ke3 Kc5 Kf4 Kd4 a4 Kd3 Ke5 b5 h4 c5 h5 f5 a5 g5 a6 b3 h6 g4 a7 c3 h7 b4 Rh4 f4 Rh3 c4 Rh5 c2 Na3 b2 Ra2 b1R Ne2 g1Q Bb2 c1B Rg5 g2 Nc3 b3 Rf5 g3 Qe1 f3 Qf2 Nf6 Ncb5 Ng4+ Kf4 Ba6 e5 Bg7 e6 Rf8 h8N Nc6 Be5 b2 Nc3 Ra1 Nab5 b1B Ng6 Ba3 Nd6 Bb5 Nd1 Rc8 a8Q Na5 Bc3 Rc6 Qb8 Qf1 Qc7 g1B Rf7 g2 Kf5 Nf6 Ke5 Nh7+ Kd5 Bc2 Rf4 Bh2 Rg4 g1R Qg2 Bg3 Qh2 Ng5 Qh7 Ke2 d4 Qf2 Nf4+ Kf1 Nh5 Bca4 Qe4 Bh6 Qc2 Rf4 Ke5 Nh3 d5 Qd2 Ne8 Bh2 d6 Qd3 d7 Qh4 d8Q Bg7+ Qf6 Qf2 Nd6 Qb6 Rh4 Rg6 Rg4 Rh6 Qb8 Rh8 Qc7 Rf8 Qe7 Bh8 Nf7 Rd4+ Nf4 Rcd6 Qc7 Be8 Qc8 Bab5 Qc5 Bg1 Nh5 Be3 Qg7 Rf4 Qc7 Rc6 Qf6 Qa6 Qg7 Ba7 Qf6 Bb8 Qg7 Rf6 Qh6 Bg7 Qh8 Qg6 Kd5 Qa7 Ke5 Rf4+ Kd5 Rc5+ Kd6 Qd3+ Ke7 Qb6 Nd6 Rc6 Kd8 Qbd4 Kc8 Bf7+ Kd7 Be8+
4QQrB/r2R1NRn/8/3r1bb1/6p1/1r2p1Pk/BQ5n/1nbnqqKB w - - 0 1 legal: proof: e4 c5 b4 f5 d4 cxd4 b5 fxe4 g3 h5 b6 h4 Na3 h3 Nc4 axb6 Ne3 b5 Ng2 hxg2 Be3 b4 Bf4 Ra6 Bc1 Ra8 c4 Kf7 f4 Kf6 Kf2 Kf5 a4 g5 h4 b5 a5 d5 c5 e5 c6 e3+ Kf3 d3 a6 b3 c7 e2 Kf2 Kg4 f5 d4 f6 e4 a7 b4 h5 d2 f7 b2 h6 b1R h7 b3 Bb2 d3 Bd4 b2 Ra3 Bh6 f8Q Nf6 Rc3 Nbd7 Be5 Qe7 Qe1 d1R Qd8 d2 Bd4 Ne5 Rh2 Nf3 Qe8 Bf5 c8Q Rg8 h8Q Nh7 Nh3 g1B+ Kg2 Qe5 Rc7 Be3 Rd7 Bf4 Qf2 e1Q Bc4 Qe2 Rh1 Nh2 Ba2 Qe1 Bc3 Qb5 Qf8 Qbe2 Qce8 Be3 Ng1 Bf4 Nf3 Be3 Rf1 Bf4 Kg1 Kh3 Bd4 g4 Ne5 Bfg5 Qf4 e3 Qhf6 Bg7 Qb6 B7f6 Nf7 Be7 Be5 Ba3 Qbb4 Rbc1 Qb6 b1N Bh8 Rc3 Qb2 Rb3 Qf3 Rab8 a8B R8b7 Qh1 Ra7 Bc6 Rc1 Qf3 d1N Qf2 Rc5 Bh1 Qc3 Qe1 Rd5 Rf4 Qa5 Rc4 Qad2 Rc6 Qb4 Rg6 Qc3 Rg7 Qcd2 Qd4 Bc1 Qb2 Qa5 Qf2 Qae1+ Qf1+ Q2xf1#
3b1krR/2bb3p/B1q2N2/1q4rn/QN5b/KQN1rn2/P2B1prB/n7 w - - 0 1 legal: proof: d4 a5 h4 f5 f4 g5 e4 fxe4 b4 axb4 d5 b5 d6 Ra3 f5 Rh3 h5 Rh2 Nd2 cxd6 Rb1 d5 Rb3 d4 Rf3 Rxh5 Rf2 Rh2 Rf4 gxf4 g4 e5 c4 d5 f6 e3 c5 b3 g5 f3 g6 d3 c6 e4 c7 b2 g7 b1R Qe2 b4 Kd1 d4 Qe1 b3 Ne2 b2 Qg3 Nd7 Qe5+ Be7 Nc3 e2+ Ke1 Rg2 Qh2 Ne5 Nc4 Qd5 Kd2 e1B+ Kd1 d2 Kc2 d1N+ Kb3 e3 Nb5 e2 Qh6 d3 Rg1 d2 Qf4 Bd7 c8Q+ Bd8 Qb8 Bh4 Qe4 e1B Ka4 f2 Qc2 Ne3 Ka3 d1R Bd2 Qc6 Nc3 Nf3 f7+ Ke7 Qa4 Nf6 g8N+ Kf8 Be2 Nh5 Nf6 Rhg8 Qbb3 Ra1 Bf1 b1Q Nb2 Qd3 Be2 Qdb5 Nd3 Rac1 Nb4 Nc2+ Kb2 Na1 Ka3 Qe5 Ba6 Qeb5 Be3 Rd3 Bd2 R2g5 Rg4 Re3 Rc4 Ke7 f8B+ Kf7 Bd6 Rb1 Bh2 Kf8 Rd4 Rc1 Nb1 Rcc5 Rd6 Rg2 Nc3 Rcg5 Re6 Bc7 Re8+ Kg7 Nbd5 Bb8 Nd1 Rh8 Bc1 Ba5 Bd2 Bd8 N1c3 Bbc7 Rg8+ Kf7 Nb4+ Ke7 Rg6 Rf8 Rg8 Re8 Rh8 Reg8 Ncd5+ Kf7 Nc3+ Kf8
r5R1/q1q2P2/4pQQK/q6r/knnpB1qn/N2n4/3Q1bR1/1b1RbN2 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ba3 b4 Ke1 bxa3 Kd2 b5 c4 d5 g4 Kd7 f4 Kc6 a5 h5 c5 h3 g5 e3+ Kd3 e2 g6 e1B a6 h4 g7 h2 f5 a2 f6 h3 f7 b4 a7 Kb5 c6 b3 c7 b2 Qc2 Nc6 Qg2 Ka4 Qg6 Bf5+ Ke2 e6 Kf3 d3 Kf4 d2 c8Q d1Q Nf3 Bc5 Qg2 Bcf2 Qg5 d4 Qg6 Nb4 Na3 b1N Bg2 Qa5 Kg5 Rh5+ Kf4 Nh6 g8R Nd2 Qd8 Bb1 Qh4 Nf5 Rg1 h1Q Nh2 Nc4 Qhf6 Nh4 Nf1 h2 Be4 Qc2 Rg3 Qg1 Rg2 h1N Kg4 Ng3 Kf4 Ne2+ Kg4 Nc1 Kf4 Rf8 a8Q Ncd3+ Kg4 Rc8 Qb8 Qa7 Qbf4 Ra8 Q4g5 Nd6 Qd2 Qcc7 Rb8 Nc4 Rg8 Bc2 Rd1 a1Q Qc1 Bb1 Qd2 Rc5 Qfg5 Rd5 Kh5 Qc3 Kh6 Rc5 Rh2 Qg4 Rg2 Qca5 Q5f6 Rg5 Qb2 Qc1 Qe2 Qcf4 Qb2 Qfc7 Qd2 Rh5+
2KrB1bb/2nnknrR/1R3r2/1Bn3B1/Q2rn3/P3N3/pp4R1/2Q1qn2 w - - 0 1 illegal: No possible last move
n6Q/3Rrb2/B7/Kp1P2br/BQn3qk/Q1p1brbn/1B2Np1N/4b3 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 e4 Ke7 h4 Kf6 d4 g5 Kd2 b5 h5 c5 a5 g4 a6 Kg5 a7 f5 d5 c3+ Kd3+ f4 e5 b3 h6 c2 Kc3 b2 e6 c4 e7 Nc6 e8Q Nge7 h7 Be6 Qf3 Nc8 Qd7 Bd6 Nd2 b1R Qe3 Na5 Qf2 f3 Qe1 Rb3+ Kd4 Qg8 Qe4 Bf7 Rh4 Nb6 Ba3 c1B Bb2 Re8 a8B Re7 Bb7 Na8 Ne2 g1N Rh3 g2 Nf4 g3 Ba6 Bc7 Rh2 Nh3 Kc5 Kh4 Qd6 Qg4 Bd3 g1B+ Rf2 g2 Ne2 Rc3 Nf1 Bg5 Kb4 Ra3 Qc5 Bg3 Bc2 Rd3 Bd1 c3 Ba4 Nc4 Nh2 Re3 Rf1 B1f2 Re1 g1B Qed4 Na3 Ka5 Rd3 Rf1 Be1 Qdb4 B1e3 Rh1 f2 Rg1 Rc8 Rg2 Rc6 h8Q+ Rh6 Rg1 Bg3f4 Rg3 Rh5 Rf3 Bg3 Rf6 Bc1 Rd6 Rf3 Rd7 Bce3 Qd6 Nb1 Qa3 Nd2 Qdb4 Nc4+
N7/2Rpn1b1/k2rrnb1/2QR3Q/2p1r1bP/2qrp3/3R3r/nQ1B1N1K w - - 0 1 legal: proof: c4 h5 d4 f5 e4 fxe4 g4 hxg4 b4 c6 b5 c5 b6 axb6 Ba3 cxd4 c5 Qc7 c6 Qd8 Bc5 bxc5 f4 b5 Kf2 e5 Kg2 g5 a4 e3 h3 g3 f5 e2 a5 b4 a6 c4 a7 e4 f6 b3 c7 e3 Nf3 e1N+ Kg1 g2 Ra4 g4 Rh2 d3 Nh4 d2 Be2 b2 Nf5 Nc6 Qc1 d1R Nh6 Bb7 c8R Rd6 Na3 b1B Rb8 Nc2 Ra6 Bg7 Rb6 Nce7 Nb5 Bf3 Qe1 Na1 Rc8 Bg6 Rc7 Qc8 f7+ Kd8 Rbc6 Nf6 Qb1 Qa6 Nf5 Qa5 Rb6 Qc3 Ng3 Rb8 Rbc6 Rb6 Rc5 Rd3 Re5 Re6 Nf1 Re8 f8Q Rdd6 Rb7 Kc8 h4 Rd3 Rd5 Rd6 Rh3 Re6 Kh2 g1R Bd1 Rg2+ Kh1 g3 Rh2 Bg4 Nc7 Rc2 Rd2 g2+ Kg1 Ra2 Na8 Raa6 Qh8 Rad6 Qh5 Re4 Kh2 g1R Rc7+ Kd8 Rb7 Rg2+ Kh1 Kc8 Rbb5 Qb4 Rbc5+ Kb7 Rc8 Ka6 Rc7 Rb8 Nb6 Rb7 a8Q+ Ra7 Qg8 Qc3 Qf8 Rb7 Na8 Rbb6 Qb8 Rbc6 Q8b4 Rde6 Qc5 Rcd6 Rc8 Rf2 Rc7 Rh2+
4bqRN/1k1bp1p1/3P1Qp1/3bR1Rn/1bb5/1n3q1N/Qr4r1/B1KN2n1 w - - 0 1 illegal: Other
b2B2Q1/1p6/qQbnrb2/1P4b1/1R1Kqb2/k2B1p1p/4BNq1/N4nQr w - - 0 1 illegal: Other
3bQrR1/6nb/q4nr1/1Q1pQpkq/1N1R1n2/RpKPb3/6N1/1B1qn3 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Ba3 axb5 Be7 bxc4 Bh4 c3 Bg3 fxg3 h4 Ke7 a4 Kf6 e4 g5 a5 d5 d3 b5 h5 c5 a6 c2 Kd2 c1Q+ Ke1 c4 h6 c3 h7 b4 a7 g2 Rh2 c2 Nc3 g3 Na2 g4 e5+ Kg5 e6 b3 e7 Nd7 e8R Nc5 Ke2 Ne6 Rh3 Qb6 Nc3 Qa6 Rh2 Be7 Rd8 Nf6 Re8 Ng7 Ra3 Bd8 Qe1 Rg8 h8Q Bf5 Na2 Bh7 Nb4 Qd1+ Ke3 c1Q+ Kd4 Qcc2 Ne2 g1N Nf4 g2 Be2 g3 Rh4 Nh3 Qg1 Rb8 a8Q Qcc1 Qe1 g1N Qb7 g2 Qb5 Rb6 Bf3 Rf8 Qe2 Qcc8 Qe5+ Qf5 Kc3 Re6 Bg4 Nf3 Bh5 g1B Ng2 Bc5 Rd4 Nf4 Qg8 Ne1 Be2 Qb1 Bd1 Rb6 Bc2 Qd1 Bb1 Rd6 Rc4 Be3 Rd4 Re6 Qd6 Qh3 Qc7 Qhh5 Qcb8 Nd7 Qe5+ f5 Qf7 Rg6 Qfe6 Rf7 Rg8 Nf6 Qee8 Rf8
rQ6/n1N1RB1K/1Qrn3r/b2p1p2/3nRP2/1np5/1k1b2Qq/1bqR3B w - - 0 1 legal: proof: d4 a5 h4 d5 b4 axb4 c4 dxc4 d5 g5 d6 gxh4 Nc3 e6 Nd5 exd5 Kd2 Kd7 Ke3 Kc6 Kf4 Kc5 g4 h5 a4 b5 e4 b3 d7 Kb4 Kf5 Kc3 f4 c5 e5 b2 a5 b1N e6 h3 a6 h4 e7 b4 e8Q h2 g5 h3 g6 b3 g7 b2 a7 Na3 Ra2 b1N Re2 Nc2 Bg2 Nh6+ Ke5 Qc7+ Kf6 Nc6 d8R Bf5 g8B N2d4 Rd7 Nd2 Qe4 N2b3 Qe8 Bb1 Qf1 Nhf5 Kg5 Nd6 Re5 f5 Re4 Rh6 Bf7 Qc8 Bd2+ Kb2 Nf3 c3 Qd8 c4 Rde7 c2 Bb4 c1B Qb6 Bd2 Rg1 c3 Bh1 Qa6 Qg2 Qf1 Bc5 Qc1 Rd1 Rg6+ Kh5 Rf6 Ng5 Rg6 R7e6 Be7 R6e5 Bd8 Re7 Rf6 Ne6 Bc7 Qb5 Ba5 Qb6 Rg6 Nc7 Rf6 Qg6 Re6 Kh6 Rf6 Bf3 h1Q Kh7 h2 Qg3 Qg2 Qh3 h1R Qh2 Rc8 a8Q Na7 Qab8 Rg6 Qh3 Qh2 Bg2 Nc4 Bb4 Rc6 Bd6 Rg8 Be5 Nd6 Bg7 Rf8 Bh6 Rg8 Q8b7 Ra8 Qb8 Qg1 Qf3 Rh3 Bh1 Qh2 Qg2 Rxh6+
1B1br1N1/qrn1Q1q1/4BrpQ/Pq1b3p/k3pK2/n2BN3/1R6/Q1r3n1 w - - 0 1 illegal: No possible last move, all moves rejected
2K1b3/r7/q2pPN1B/2Q4n/rq3b1Q/bRpQ3N/p1B1B1r1/1r1nn2k w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 h4 gxh4 b4 e5 c4 exf4 Ra3 b5 Rg3 bxa4 Rc3 dxc3 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 e4+ Kg3 c5 f5 c6 a5 b5 h5 e5 h3 e6 a3 c7 d6 b6 a2 b7 a1B Qd2 h2 Be2 f3 Na3 f4 Qb2 h4 Ba6 f2 Qe2 f1R Bb5 a4 Qd1 h3 Bd3 f3 Bb1 f2 Nb5 a3 Nd4 a2 Ndf3 Rh4 Qc2 Bd7 c8B Rha4 Bb2 Qh4 Bc1 Bb2 Bh6 Qb4 Qd3 R8a7 Bc2 Nc6 b8Q Be8 Qbb5 Rb1 Ba6 f1Q Qc5 Nd4 Ne5+ Nf3 Nd7 Ba3 Kc6 Nf6 Bb5 Rb2 Kb6 Nh5 Nf6 R7a5 Kb7 Ra7+ Kc8 Rb1 Qe4 Ne1 Be2 Rb2 Nf3 Rb1 Qd3 Bg7 Rg1 h1R Ng5+ Kh2 g4 Bf8 Ngh7 Bg7 g5 Bh8 Rg4 Rg1 g6 Kh1 g7 h2 g8Q Rg2 Qgg5 Bg7 Qh4 Bh8 Ne4 Be5 Nhg5 Bf4 Nh3 Qf3 Qd1 Qd3 Nf6 Qdb5 Rg7 Q5a5 Rb7 Qa6 Nf2+ Kg1 Qdd4 h1N Nh3+ Kh2 Qdc4 Nf2 Q4d4 Kh1 Qd3 Qaa5 Rb5 Nd1 Rb6 Qc4 Rb2 Qab4 Rb3 Qa6+
KB3bqn/R7/p5bn/QnRBb2p/1rrqbr2/N6Q/P4k1p/B2R4 w - - 0 1 legal: proof: f4 e5 c4 exf4 d4 g5 h4 gxh4 d5 b5 d6 bxc4 Rh3 c3 Rh2 Bxd6 Nd2 c2 Rh1 Be7 Nc4 Bf8 Nb6 Ba6 Nc8 Bxc8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 c5 b4 d5+ Kd3 Ke5 e4 f5 g5 d4 Kc4 a6 b5 f3 b6 d3 b7 f4 g6 h3 g7 h2 Nh3 f2 Bd2 c1B Bc3+ Qd4+ Kb3 f3 Bd2 c4+ Ka4 c3+ Ka5 c2 Rg1 Nd7 Rh1 Bb2 Ng5 c1R Bc3 Kf4 b8B+ Ke3 e5 d2 e6 Nh6 g8Q Ne5 e7 Nef7 Bc4 f1Q e8R+ Kf2 Qa4 d1N Ne6 Bb7 Re7 Be4 Bd5 Qg2 Ra7 Rc2 Qh7 Qg8 Rc1 Ba1 Bb2 Rc4 Qf5 Nc3 Qh3 Nb5 Rhd1 Rh7 Rc3 Nh8 Nc7 Rf7 Qa3 Rb4 Rc5 Rf4 Kb6 Bg6 Kb7 Be4 Ne8 Rc4 Qa5 Rb4 Bd6 Rc8 Bb8 Bg6 Ka8 Rc7 Rcc1 Rcc4 Bc3 Qd2 Bf6 Be5 Nc7 Qd4 Rc3 Ke2 Bg7 f2 Rcc1 f1B Bf6 Rc6 Rc5 Kf2 Bg7 Bg2 Bf6 Nc3 Nb5 B2e4 Na3 Rc8 Rb5 Rcc4 Rc5 Nb5 Bg7 Bed6 Be5 Qe3 Bb2 Be5 Ba1 Qd4
1knB3K/1n4q1/pR3Q2/b2b1pP1/p3N3/Q1n1q1rQ/nb2B1B1/1R3q1r w - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 d4 cxd4 h5 bxa4 Nc3 dxc3 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kh5 f5 e4 d4 g4 h3 b4 a6 b5 d3 e5 f3 e6 f2 c5 c2 e7 h2 e8Q d2 c6 Qd3 Qe7+ Nd7 b6+ Kb8 b7 Qe3 Ne2 Nc5 Qf6 Be6 Qb2 Bd5 Ra3 Ne7 Qd4 Nc8 Rg1 h1N Rb3 h6 Kg6 h5 Qb2 h4 Qf6 h3 Ng3 h2 Ne4 Ng3 Rb6 h1Q Qf3 d1N Be2 f1Q g5 Nc3 Bd2 Na2 Ba5 c1B Qg4 Rh4 Qh3 Rg4 Kh7 Bb2 Kh8 Qa1 Rb1 Qf1 Bd2 Be7 Ba5 Bd8 c7+ Ka7 Bd3 Ne2 Bb5 Nec3 Be2 Ne7 c8B Kb8 Bd7 Nc8 Bdb5 Rg1 Bf3 Bc7 Bbe2 Rg3 Bg2 Ne6 Bb4 Nd8 Be7 Ra7 Rb5 Ba5 Rb6 Ne6 Bd8 Nc5 Qd4 Ra8 Qf6 Na7 Rb5 Nd1 Qh7 Bc1 Be7 Kc7+ b8Q+ Kd7 Qf8 Kc7 Qfg7 Nb7 Rb6 Qf6 Qh4 Ndc3 Kh7 Bb2 Qg4 Qf7 Bf6 Qd7 Qa3 Rb8 Qf7 Rh8+ Kg7 Kc8 Bd8 Rh1 Qh3 Kb8 Kh8 Nc8 Qf6 Qg7+
1kr2Q1r/NB2bp1P/p5q1/R1QbbB2/qn1q4/5n1N/5K1p/2Bqr1Q1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 h4 hxg4 f4 b5 a4 bxa4 Ra3 e5 Rg3 exf4 Rgh3 gxh3 c4 g5 e4 d5 b5 Kd7 b6 g4 e5 a6 c5 d3 h5 h2 h6 g3 b7 Kc7 c6 g2 e6 d2+ Kf2 a3 h7 d4 e7 d3 e8Q a2 Qh5 a1B Qe6 d1Q Qeg6 f3 Qhh6 d2 Bb2 Ne7 Qhg7 Nd5 Q6h6 Be6 Bc1 Nd7 Bd3 Kb8 Nc3 Nb4 Nh3 Ne5 Qhg5 Bd5 Bf5 Be7 Nb5 Qa4 Na7 d1Q Qe3 g1R Qc5 Re1 Rg1 Qd6 Rg5 Qg6 Rh5 Nc4 Qgd4 Nd2 Qg4 Be5 Qg1 Kc7 Rg5 Rac8 b8Q+ Kd8 Qbb5 Kc7 Qa5+ Kb8 Qd8 Qdb3 Qg8 Qc4 Qf8 Rd1 Ke3 f2 Rh5 f1Q c7+ Ka8 Rg5 Nf3 Rh5 Qfd3+ Kf2 Re1 Rg5 Qdd1 Rh5 Rd8 c8B Kb8 Bb7 Qcd4+ Be3 Bf4 Qc1 Beg5 Bb1 Bb3 Qc6 Be7 Ra5 Bd5 Bf5 Rc8 Qc5 Qe4 Bd2 Be5 Bc1 Qed4+
1qB1k3/1r2Pn2/1r2N3/1q1ppq2/2n2NRn/K1p1Nb1B/1QQB4/2bqr3 w - - 0 1 legal: proof: e4 e5 c4 g5 a4 f6 d4 exd4 h4 gxh4 b4 a6 b5 axb5 e5 bxc4 e6 c3 Ra2 Ra6 Re2 Ra8 Re5 fxe5 f4 b5 g4 c5 g5 d5 f5 h5 f6 b4 g6 h3 g7 c4 a5 b3 e7 h2 a6 h4 a7 d3 Qc2 d2+ Kd1 b2 Qe4 c2+ Ke2 d1Q+ Ke3 h3 Be2 c3 Qg4 Rh6 Na3 b1Q Qf5 Nc6 Bf1 Qb5 Nc4 Rb8 a8B Rb7 Bd2 c1R Kd3 Na5 Ne2 Qdd7 Qe4 Qf5 Rg1 h1Q Rg4 h2 Nf4 Qg1 Bg2 h1N Bh3 Ng3 f7+ Kd7 Rh4 Rhb6 Rg4 Nh6 g8Q Qgc5 Qg6 Qcb4 Qg5 Bg7 f8N+ Ke8 N8e6 Nf7 Qh4 Bh6 Qh5 Qc6 Ne3 Nc4 Qh4 Qcb5 Qh5 Rd7 Bb7 Qd6 Qg5 Qb8 Qg6 Rc7 Ba6 Bd7 Bc8 Rcb7 Qg7 Nf1 Qf6 Nh2 Qh4 Nf3 Qf2 Nh4 Qh2 Qf3 Qf2 Re1 Kc2 Qc5 Qg2 Bb5 Kb3 Qd1+ Ka2 Ba4 Qh2 Qb5 Qc2 Bg5 Qb2 Bc2 Qe2 Be4 Qd3 Bf3 Qdc2 Bh6 Ng6 Qc7 Nf1 Nd8 Bf4 Nd6 Ka3 N8f7 Bc1 Be3 Ngf4 Qb8 Bd2 Re2 Be1 Bc1 Bd2 Re1 Ne3 Nc4+
8/2P1pBp1/QnpnrN2/1Q3q1q/bB3n2/3rk2q/2R1BR2/1r1Kb1Qr w - - 0 1 illegal: Other
n1rb2n1/1Bpr1N2/R1q1b3/2pBr1Q1/1k3BnQ/3q1p1P/1K6/1Qq1q1R1 w - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 c4 axb4 g5 d6 c5 dxc5 g6 f3 Nc3 hxg6 Nd5 g5 Nf4 g4 Ng2 fxg2 Ba3 g3 Bb2 Bg4 Bc1 Bc8 e4 Kd7 a4 Kc6 d4 b5 Kd2 g5 Kc2 f5 h3 g4 a5 f4 e5 b3+ Kc3 b4+ Kb2 Qd6 a6 Be7 e6 Bd8 e7 Nd7 e8Q Rh7 Qee1 Nb6 a7 Rd7 Nf3 g1N Qe7 g2 Qe6 g3 Nh2 Nf3 Ra5 g1R Ra1 g2 Ra6 Ne5 Kb1 b2 Qc4 f3 Bf4 Ng4 Bd3 Re1 Rg1 Re5 Be4+ Qd5 Kc2 Rb8 Qb1 b3+ Kc3 Rg7 Qb4 Be6 Qc4 Rd7 a8B+ Kd6 Bc6 Rc8 Bb7 Qc6 d5 Na8 Qd4 Rh7 Qf2 Rf7 Qh4 Rd7 Qbe1 b1Q Qc1 Ne3 Ng4 b2 Nh6 Ng4 Qc2 Qf1 Qb1 Qc1+ Kb3 Rh7 Nf7+ Kd7 Rd1 g1Q Rf1 Qg3 Rg1 Qge1 Ka3 Rg7 d6 Rh7 Bd5 Rg7 Qa2 b1Q+ Qb2 Qh7 Ka2 Qd3 Qb1 Rh7 Ng5 Ke8 d7+ Ke7 Ka1 Kf6 Nf7+ Kf5 Ba2 Ke4 Bd5+ Kd4 Ka2 Kc3 Ka1 Bg5 d8Q Rg7 Qf6 Rh7 Qg6 Bd8 Qgg5 Rg7 Bb3 Kb4 Ka2 Qce3 Kb2 Rh7 Bd5 Rg7 Nh8 Rd7 Nf7 Q3c1+
5q1B/p2RN1pq/1q1R1bq1/n3Pb1r/2Qp1rk1/4r3/KN2b2Q/4QRn1 w - - 0 1 legal: proof: g4 f5 a4 e5 d4 exd4 e4 c5 e5 b5 g5 d3 g6 bxa4 Be3 d2+ Ke2 hxg6 Bd4 cxd4 Bg2 g5 Be4 fxe4 Kf1 g4 Ke2 d3+ Ke3 Ke7 Kd4 Ke6 Kc4 Kf5 b4 a3 Kb3 d5 h4 g3 f4 g2 c4 a2 h5 e3 h6 e2 c5 e1R c6 d4 h7 Qc7 b5 Qd6 c7 Nh6 b6 Nf7 b7 Ng5 Na3 Nh3 Nf3 g1Q Nc4 Nc6 b8Q Re3 Nb2 Be7 Qb1 Qf2 Rf1 Ng1 Qe1 Kg4 f5 Rf8 Rc1 a1Q f6 Qa6 f7 Na5+ Ka2 d1Q Nh4 d2 Nf5 Qab6 Rc6 Qc2 Qb7 Rh8 f8R d1B Rd8 Be2 Qb8 Bh4 Ne7 Qh6 Rcd6 Qcg6 Qb7 Bd7 Qh1 Rb8 Rg8 Rf8 c8Q Rf5 Rd8 Rhf8 h8B Rh5 Nd3 Qhh7 Qh2 Qf3 Qcc3 Qa8 Qb4 Rf4 Nb2 Bf5 Qc4 Bf6 R8d7 Qf8
3rq3/r1r2rQr/p1KR1np1/1p1Br1n1/2Q5/1R2RP1k/1Nbb1b2/1N1N4 w - - 0 1 legal: proof: e4 f5 g4 fxe4 d4 c5 a4 cxd4 Bh3 h5 Bf1 hxg4 b4 Qc7 b5 Qb6 a5 Qd8 a6 bxa6 b6 Rh4 b7 Qc7 Ba3 Qd8 Bc5 Rh8 Bb6 axb6 Kd2 Kf7 h4 Kg6 c4 Kh5 c5 e5 f3 d5 c6 e3+ Kd3 g3 c7 e2 Na3 e1R Nb5 g6 Ra2 e4+ Kd2 d3 Kc3 d2 Kd4 g2 Ne2 g1B+ Ke5 d4 Rh2 d3 Qc1 d1R Ra1 d2 Ra5 e3 Rg2 Nf6 Nec3 e2 Na3 Rh7 Rd5 Bb4 Nab1 Ra7 Rd6 Ne4 Kd5 Nd7 b8R Ng5 Kc6 Nf6 Qc2 Bf5 c8N Qh8 Qa4 Ba5 Qc4 Bc2 Rg4 Be3 Re4 Bf2 Re3 Rhf7 Bh3 Rh1 Be6 e1R Bd5 Bb4 Rd8 Re2 Nd6 Qe8+ Rd7 Rc1 Rb7 d1R Rb8 Rd4 Nd1 Bd2 Rb7 Kh6 h5 b5 Rb3 Re5 Rb8 Qf8 Re8 Qg8 Ree7 Qe8 Re6 Rf5 Ree3 Re5 Ne4 Rh4 Nb2 Rd1 Nec3 Ne6 Nd3 Kg5 h6 Rhh1 h7 Kh4 Nb2 Ng5 h8Q+ Kg3 Qf8 Rhh7 Qg7 Kh3 Be4 Qh8 Rd8 Rdd7 Bd5 Qe8 Rb8 Re1 Ncd1 Re2 Rb6 Rd8+ Kc5 Ree7 Re6 Red7 Rd6 Re1 Kc6 Re2 Rec3 Re5 Re3 Rdc7+
2Q1BnK1/3r1p2/b2R1b2/PR5p/NB1Bn3/n2r4/1rrQ1pkr/1R1q1r2 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 h4 Qa5 g5 Qb6 g6 hxg6 h5 Qd8 h6 Rh7 Nc3 Qb6 Ne4 Rh8 Ng3 Qd8 Nh5 gxh5 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 c4 Kg3 a4 g5 e4 d5 c5 b5 h7 f3 c6 d3 c7 b3 Ra3 d2 Ra2 b4 Rh2 d4 Rf2 g4 Rb2 d3 Qe1 d1R Qe3 d2 Rh2 Nd7+ Kf5 Ba6 c8Q Ngf6 e5 Ne4 e6 Bg7 e7 Bf6 e8R Nf8 Ra2 b2 Ra1 b1R Re6 b3 Bb5 b2 Be8 Qd4 Rh3+ Kg2 Ne2 g3 Nc3 f2 a5 Rf1 Rh1 d1R Qd2 Ra7 Na4 Rd7 Rd6 Rg8 h8B Rg6 Qe1 Rd3 Bd2 Rc1 Qe2 b1N Bb4 Rc2 Qd2 Na3 Rb1 Rg4 Bg7 Rh4 Rb3 Rb1 Rc1 Rbb2 Rb1 Rh2 Bh8 Qe3 Bg7 Qe1 Bh8 Bh4 Bd4 Qd1 Ke5 Kh3 Kf5 g2 Ke5 g1R Kf5 Ng5 Kf6 Rf1 Kg7 Kg2 Kg8 Ne4 Bbc3 Ng5 Rb5 Ne4 Bb4 Bf6
1NnbQ3/3B2pb/1n2Q1r1/Q2pRq2/RKp5/N3rP1q/1k2n3/1n2nN1n w - - 0 1 legal: proof: c4 h5 d4 f5 e4 fxe4 g4 hxg4 b4 c6 b5 c5 b6 axb6 Ba3 cxd4 c5 Qc7 c6 Qd8 Bc5 bxc5 Kd2 Kf7 h4 Kf6 a4 Ke5 a5 b5 f3 d5 c7 d3 Kc3 d2 a6 g3 a7 b4+ Kb3 Kd4 h5 e5 h6 c4+ Ka4 b3 h7 b2 Rh4 g2 Qb3 d1N Nc3 b1N Qa2 Qg5 Ka5 Nf2 Rg4 Nd7 Ka4 Nh1 Ka5 Qf5 Qc2 Be7 Rg5 e3 Be2 e4 Bd3 e2 Qa4 Bd8 Kb4 e1Q Qa5 e3 Ra4 e2 Rh5 Qh3 Re5 Ne7 Bf5 Nb6 Bd7 Re8 h8Q Qd2 Qh5 e1N Ne2+ Kd3 Qh8 Kc2 Ng3 g1N Nf1 Qd3 Nb5 Ne2 Na3+ Kb2 Qh5 Rb8 a8N Qdf5 Qh6 Rb7 Qe6 Ra7 Qd6 Ra6 Qe6 Bb7 c8Q Bc6 Qb8 Nec8 Nc7 Bb7 Bb5 Bc6 Qa8 Bd7 Bc6 Re7 Qb8 Be8 Bd7 Bg6 Qa8 Bh7 Qb8 Ra7 Na6 Rc7 Qa8 Rc6 Nb8 Re8 Qf7 Rh6 Qc6 Ree6 Qe8 Reg6 Qd6 Rh4 Qde7 Re4 Qe6 Re3
NRR1b3/n7/1b1nQ2p/1qbBQR1r/3bnpP1/n1r3q1/2p1KN2/4N1k1 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Ba3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 d4 Ke7 g4 Kd6 e4 c5 e5+ Kd5 a5 Ke4 e6 Ke3 e7 b5 e8R+ Ne7 d5 f5 a6 f3 d6 a2 a7 c3 d7 f4 Rh3 c2 Qd6 c1B Bd3 c4 Bf1 c3 Rh1 h3 Qa3 b4 Ba6 h2 Qb3 f2+ Kd1 f1Q+ Kc2 Kf2 Qf7 Nf5 Qe6 Qb5 Kd1 b3 Na3 b2 Qg8 b1N Qg7 Nd6 Nc4 Na3 Re3 Qh4 d8Q Nc6 Nb2 Bd7 Qc8 Be8 Nf3 Qg3 Re5 Be3 Rf5 Bb6 Rc1 a1B Qe6 Rc8 a8N Na7 Ne1 Rc5 Rg1 h1N Bb7 h6 Rb1 Rg8 Qc7 Rg5 Bd5 Rh5 Rg2+ Kf1 Rc2 Kg1 Nbd3 Nf2+ Ke2 Nfe4 Qg7 Rc8 Qge5 Rc4 Nf2 Be7 Rcb2 c2 Rb4 Rc3+ Rc4 Rd3 Rc8 Bad4 Rb4 Rc3+ Nfd3 Ndc4 Nf2 Bec5 Rb2 Qd7 Rb3 Ncd6 Rb1 Ba5 Rb7 Bab6 Rbb8 Qb5+
n4NQ1/qBk1n3/r2brpbb/5R2/1Q5p/PBr1r3/pN1QN3/b4K1q w - - 0 1 legal: proof: f4 b5 h4 d5 c4 dxc4 h5 e5 h6 exf4 Rh2 b4 Rh1 gxh6 Rh3 h5 Rh1 h4 a3 a5 Ra2 Qd3 Qc2 b3 Qd1 bxa2 b4 Qc2 b5 Qd3 Bb2 Qd7 Bc3 Qd8 Bb4 axb4 g4 Kd7 d4 c5 e4 h5 d5 h3 d6 f6 b6 c3 e5 c2 b7 c1B g5 f3 g6 b3 g7 h2 Qc2 h4 Bc4 f2+ Ke2 f1R Qd2 b2 Qa5 Bh6 Qa6 Qa5 Qa7 Na6 b8Q+ Nc7 Bf7 c4 Nd2 b1R Qe3 c3 Bb3 c2 Qb4 c1B Nc4 Ne7 g8Q Bb2 Qed2 Ba1 Nb2 Rf3 e6+ Kd8 d7 Re3+ Kf2 Ra6 Ne2 Rc1 Rf1 Na8 Kg2 Qc7 Rf5 Rcc3 Kf2 Qb7 Kf1 Kc7 d8N h1Q+ Ng1 Ng6 e7 Qa7 e8B Bd6 Bc6 Ne7 Bg2 Be6 Bb7 Bf7 Ne6+ Kd7 Qg5 Re8 Nf8+ Kc7 Qg7 Bg6 Qg8 Nc6 Rh5 R8e6 Rf5 Qd5 Ne2 Ne7 Rf3 Qc6 Rf5 Qh1+
3Rb3/q6Q/qQRbPnr1/q1b1p1NR/2Nn1k2/3KNB2/1p2p3/1q1b1r2 w - - 0 1 illegal: No proof kernel
nQn3Q1/3B2Q1/1RR3p1/1p5P/b3brbb/KpB3n1/N3qR1p/1kb3r1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 h5 g4 hxg4 e4 a5 Nd2 axb4 Nh3 gxh3 Nf3 f5 Ng1 fxe4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb2 d5 a4 b5 c5 e3 f4+ Ke4 h5 e5 f5 d3 a5 e2 f6 e1B f7 g6 c6 d2 c7 h2 a6 d4 a7 d3 Nf3 Ne7 Qb3 d1B Bg2 d2 Bf1 Qd3 Bg2 Bh4 Ng1+ Bf3 Bh3 d1B Ra6 Bcg4 c8R Qe2+ Bd2 Bh6 f8Q Nd7 Qe8 Rf8 Qa3 Rf4 Qh8 Nb6 Qh7 Ba4 Rc7 Nec8 Qa2 Kd3 Qag8 e4 Bf1 e3 Qhg7 Be4 Rc6 b3 Bg2 Rb8 Bh3 Na8 Ka3 Rb6 Re6 Kc2 Bc3 Rd6 Rc6 Rd1 Rb6 Kb1 Rec6 Qg2 Ne2 Rg1 Nc1 e2 Na2 e1N Be5 Nf3 Bc3 Ne7 Qb8 Nd4 Qbg8 Ne2 Qb8 Bgf3 Bd7 Ng3 Qbg8 Qe2 Qb8 Nc7 a8Q Bg4 Qbg8 Nc8 Qb8 Re1 Rf1 Na8 Rf2 Rg1 Qc7 Rf7 Qcd8 Be3 Qc7 Rf4 Qb8 Bc1+
1r1b3Q/2bn1P1p/B3p1kp/bBn1B3/r1nN2K1/1qRb1rQ1/Q1p2R2/8 w - - 0 1 legal: proof: b4 f5 e4 fxe4 h4 a5 c4 axb4 a4 d5 h5 dxc4 h6 gxh6 Na3 bxa3 Ke2 Kf7 g4 c5 d4 b5 f4 b4 g5 c3 d5 a2 a5 c2 a6 c4 f5 b3 a7 e3 Kf3 b2 f6 b1N d6 e2 d7 e1B Kf4 c3 Qd6 e6 Qe7+ Kg6 f7 Na3 Rh3 Nc4 Ne2 Ba6 Qa3 Nf6 Nd4 Ne4 Bb2 c1R Kg4 c2 Rc3 Qb6 d8Q Qb3 Qc7 Bd2 Qg3 Nd7 Bd3 Rg1 Rf1 a1B Rf2 Bd6 Qa2 Rf1 Be2 Rab8 a8B Nec5 Bc6 Bc7 Ba4 Rb4 Bb5 Ra4 Bd3+ Kg7 g6 Rb8 Be2 Bd8 Bd3 Bf4 Be2 Kf6 g7 Kg6 Rd3 Bfc7 Rc3 Rd1 Bf1 Rd3 Be2 Rf3 g8Q+ Kf6 Qh8+ Kg6 Bc1 Bb2 Bf4 Bc1 Be5 Bd2 Re3 Bda5 Rc3 Bb7 Bf1 Be4 Ba6 Na3 Bfc4 Bd3 Bcb5 Nc4
1Q1R1b2/1qp4b/1nn1p3/1r1Bp1N1/1p4B1/rb1Q1PK1/3b1b1Q/2qBk1N1 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 e5 dxc4 e6 fxe6 a3 g5 f3 g4 Qc2 g3 Qd1 e5 a4 h6 Ke2 Ra7 Bb2 Bh3 Bd4 Kf7 Bf2 gxf2 g4 Ra8 g5 Bf5 g6+ Ke8 Nh3 Qd4 Rg1 Qd5 Rg5 hxg5 Ng1 Bc8 Qb3 Bh6 Bg2 Qd4 Nh3 Kf8 Na3 Nd7 Rh1 Bg7 Bf1 Nb8 Qd1 Ke8 Nb1 Bf8 Ng1 Qd8 d4 Kd7 h4 Ke6 a5 Kd5 g7 b5 a6 b3 h5 b2 a7 b4 h6 c3 h7 Kc4 d5 g4 d6 c2 d7 c1B Bg2 g3 Bf1 g2 Nc3 b1B Qa4 Bd2 Rh3 Nf6 g8B+ Nd5 Qa3 Nc6 Ne4 e6 Bf7 Nb6 Bh5 Bb7 Ng5 Qc8 d8Q Be4 Qa6+ Kc3 Bg4 Bc2 Qb5 Bb3 Rh5 Rb8 a8B Ba6 Qe8 Qb7 Rh4 Rg8 h8Q Kc2 Qd3+ Kc1 N1h3 g1B Rh7 Bac4 Rd7 Bc2 Rd8 B4b3 Qb5 Bh7 Qd3 Rg7 Qh5 Rd7 Qh4 Rd5 Qg3 Ra5 Qh2 Ra3 Qg8 Bc3 Ke3 Be1 Be2 Bc3 Bd1 f1Q+ Qf2 Bh2 Qg2 Bg3 Qh2 Qg1+ Ke2 Bd2 Qh8 Qc5 Ng1 Bf2 Kf1 Qc4 Kg2 Ba2 Ba4 Bb3 Kh3 Kd1 Qg8 Bd4 Kg3 Ke1 Qh8 Qc1 Qg8 Ba2 Bd1 Bf2+ Kh3 Qa6 Qgg6 Nd5 Rc8 Rb5 Qe8 Nd8 Bc6 Nb6 Bd5 Bb3 Ra8 Bd4 Kg3 Nc6 Qc8 B4e3 Qb7 Qa7 Rd8 Qb8 Qa7 Qb7 Qb8 Bf2+
Qq3N2/rp1p4/p3b1b1/prb2Qrk/1N1r2n1/R2R2Kn/Q1P5/B2q3N w - - 0 1 illegal: Other
3k1nB1/1bb1N2N/bPQ1p2p/4n2r/1pr2N1Q/2p2q1Q/bR2R2K/4n1n1 w - - 0 1 legal: proof: c4 b5 e4 bxc4 h4 g5 b4 gxh4 e5 a5 d3 cxd3 b5 f6 Bg5 fxe5 Bd2 e4 Bb4 axb4 f4 d5 Kf2 c5 g4 c4 Kg2 d4 a4 e3 g5 c3 f5 e6 b6 e2 g6 e1N+ Kh2 d2 g7 h3 a5 d3 a6 Nc6 f6 Nge7 g8N Ne5 a7 N7g6 Ne2 Ba6 Ra2 Qd5 f7+ Kd8 Rb2 Qf3 Nf4 Rc8 a8Q Bd6 Qc6 Bc7 Ne7 Nf8 Qc2 d1N Qf2 d2 Qh4 Nf2 Bd3 d1B Nd2 Bb3 Ne4 Ba2 Nf6 h6 Rf1 Rg8 Bh7 Rg5 Bg8 Rh5 Rg1 Ne4 Rh1 Ng3 Nh7 Ne2 Rf1 Ng1 Rff2 Qg4 Rfe2 Qf5 Kg3 h2 Qh3 h1B Kh2 Qg6 Qb5 Bhb7 Qc6 Nfd7 f8Q+ Qe8 Qf7 Nf8 Qf6 Qf7 Qfh4 Qf5 Nfg6 Qf3 Nf4 Bb8 Qe4 Rc4 Qc6 Bc7
2bn3N/2bpr2q/r2p1Kq1/p2R4/2pBQ3/nPR1Q2b/k2Nn1p1/4QR2 w - - 0 1 legal: proof: c4 g5 d4 b5 g4 Na6 f4 Nb4 a4 bxa4 d5 Nc2+ Kf2 h6 d6 exd6 Bh3 gxf4 g5 h5 Bg4 hxg4 Kf1 Na3 Qe1 Nxc4 Qd2 Na3 Qd1 Nc2 Kf2 Ke7 e4 Ke6 h4 f5 g6 c5 h5 a5 h6 a3 e5 f3 Kg3 a2 Kf4 g3 g7 f2 h7 f1B Rh4 Ne7 Kg5 f4 g8R f3 Na3 f2 Rf4 Qe8 Rf5 Ra6 Nf3 Nc6 Qe1 Kd5 Kf6 Nd8 Nb1 Kc4 e6 Kb3 e7 c4 Be3 Bh3 Rd5 f1N Nh4 g2 Rg3 Na3 Ng6 Rg8 h8Q Rg7 Rf3 Ng3 Qh7 Ne2 Nh8 Qh5 e8Q Re7 Qf5 Qh7 Qe4 Bh6 Bd4+ Be3 Bc3 Bb6 Nd2+ Ka4 Rf1 Bc7 Rc1 a1Q Bd4 Qb1 b3+ Kb4 Rc3 Qd3 Qg8 Qg3 Qf8 Qgg8 Qh6 Qgf7+ Kg5 Qfg6+ Kh4 Nb5 Qc1 Qgf7 Qe1 Ka3 Kg5 Qe8 Kf6 Ka2 Qg5 Na3 Qge3 Qeg6+
7b/Bkb1R1Qp/3pRQ2/4n2R/qP1rNpb1/2nBp3/2r1bQ1p/5Kn1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 g5 h4 gxh4 f4 b5 f5 bxa4 Na3 e6 Nc4 exf5 Ne3 dxe3 Ra2 f4 Ra3 Ne7 Ra1 Ng8 c4 a5 g4 f5 b4 h3 e5 h2 c5 a3 g5 a2 e6 f3 g6 a4 c6 f2+ Ke2 a3 e7 f4 c7 Nc6 g7 Nf6 g8Q Nd5 Qg7 Nc3+ Kf3 Ne5+ Kg2 Ra5 Qg8 Rd5 Bb5 Rd4 Bd3 d6 Qg5 Kd7 e8R Kc6 Qg7 Be7 Qe2 Kb7 Nf3 Bg4 Ng5 Qa8 Kf1 Qa4 Ne4 Bd8 Bb2 Rf8 Rc1 a1B Rg1 a2 Re6 Rh8 Rg3 Rg8 Rh3 Rf8 Ba3 Bb2 Rc2 a1N Rh5 Nb3 Qf6 Ba1 Bb2 Nc1 Qe1 N1e2 c8Q+ Kb6 Qd2 Bc7 Qd7 Kb7 Qdg7 Rc8 Rc1 Na2 Rc6 Ng1 Ra6 Nc3 Ra8 Rf8 Rae8 Rg8 R8e7 Rc8 Qe2 Nd5 Kg2 Rc4 Re8 Ng6 Qg8 Ba5 Bd4 R8c7 Qe5 f1B+ Kh1 R7c6 R8e7+ Bc7 Qf2 Bfe2 Kg2 Rc2 Qeh8 R6c4 Ba7 Bg7 Qf8 Rd4 Qf6 Nc3 Qhf8 Bh8 Q8g7 Bd1 Kf1 Ne5 Bc5 Bdf3 Ba7 Be2+
2bb4/1BnKb3/q4NNN/1p3n2/1bnRn1q1/2B1r3/2kPR1rb/n3R1B1 w - - 0 1 illegal: No possible last move
b1B1N1N1/3r1k2/B2q4/r1b2n1P/1n1R1br1/5Nbq/pR2nRB1/Kb1n4 w - - 0 1 legal: proof: g4 c5 a4 e5 d4 cxd4 f4 exf4 g5 b5 Kf2 bxa4 Ra3 h6 Ra1 f3 Qd3 g6 Qf5 gxf5 g6 Qe7 Bf4 Qd8 Bg5 hxg5 Ke1 f4 Kd2 f5 Kc1 d5 c4 a5 h4 a3 e4 f2 b4 f3 g7 a4 c5 f4 c6 a2 Kb2 a3+ Kc2 g4 b5 g3 e5 g2 c7 d3+ Kb3 d4 h5 d2 e6 d1N b6 d3 e7 d2 b7 Qd6 Bd3 f1N Nh3 g1B Kc2 f2 Be4 f3 Nf4 Ra5 Bh7 Bf5+ Kb3 Nh6 c8B Nc6 g8N Bh2 b8R Kf7 Rg1 Ng3 Ba6 f1Q Nh3 f2 Nf4 Ne2 Rg2 Nb4 Ne6 Bf4 Nc7 Bg6 Ne8 Nf5 Rb7 Qh1 Rd7 f1B Rf2 Bg2 Rd8 Ba8 Rd7 Qf6 Rd4 Qd6 Bc8 Bg3 Ba6 Qh3 Bc8 Nb2 Ba6 d1R Nd2 Bh6 Nf3 Bhf4 Rb1 a1B Bc8 a2 Ba6 Nc4 Rb2 Nce3 Bc8 Rd2 Ba6 Nd1 Bc8 Nh4 Ba6 Bge4 Bf5 Bb1 Bfc8 Nf5 Nc7 Rh7 e8B+ Kf8 Ba4 Rg7 Ne8 Kf7 Bc6 Rg4 Ng1 Rc2 Bg2 Rc7 Nf3 Rd7 Rc2 Bc3 Rb2 Nde3 Rc2 Bd2 Kb2 Nd1+ Ka1 Bc1 Rb2 Bce3 Rdd2 Ba7 Rd4 Bc5
3R2Nb/k2n1p1q/2b2n1B/1PrrqnB1/2br1n2/1R3B1N/q4K2/2N2qR1 w - - 0 1 illegal: No possible last move, all moves rejected
2n1k3/NRr4b/1rqpBR2/B1bpR3/8/4qKPN/r2b1nBr/1Nb4b w - - 0 1 legal: proof: d4 f5 b4 a5 e4 axb4 f4 fxe4 d5 h5 d6 cxd6 g3 g5 Ke2 gxf4 Kd2 h4 Qf3 d5 Qg2 h3 Ke1 hxg2 Ke2 e5 a4 b3 c4 f3+ Kf2 e3+ Ke1 f2+ Ke2 e4 h4 b2 a5 Qb6 a6 Nf6 c5 Qc6 a7 Ng4 h5 Bh6 Nc3 b1R Rh3 Rb6 Nf3 g1B Bg2 f1R Bd2 Rc1 Na4 Nf2 Bc3 d6 Ra3 Bg4 Rb3 Nd7 Ba5 Bf5 Nd4 Bh7 Nb5 Bg5 h6 Rc4 Ke1 e2 Nac3 Bc1 Nb1 Rc2 Rh2 Rc8 a8R Ra2 Ra7 Rc7 Rd3 Nf6 Rh5 Ng8 Rf5 Ne7 Rf6 Nc8 Rb3 Bb2 Kd2 e1B+ Ke2 e3 Kf3 e2 Rc3 Bc1 Re3+ Kd8 Re5 Bed2 Ra8 e1Q Na7 Ra6 Rb8 b5 Rb7 b4 Bh3 b3 Bg2 Qb6 c6 b2 Rg5 Ke8 Re5+ Re7 c7 Qc6 Ref5 Rg7 Rh5 Rb6 Re5+ Ne7 c8B Rf7 Be6 Nc8 Re3 Rc7 Re2 Nh1 Re4 Bc5 Re5 Qe3+ Kg4 Be4 h7 Rf8 h8N Nf2+ Kh4 Bh7 Ng6 Rh8 Nf4 Be4+ Kg5 Bf3 Kf5 Rh1 Nh3 Rh2 Bf1 Bh1 Bg2 Qa3 Re3 Qb3 Kf4 Qc3 Kf3 Qb3 Nc3 b1B Re5 Bd3 Nb1 Qc3 Re1 Bh7+ Re3 Qd4 Re5 Qe3+
1b2R2b/R5n1/bp2Nr1N/n3p3/Pq1R1r2/1nNr1r2/1k3bKq/3B1B1B w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Qg4 e4 Qf3 Nf6 Qd1 Ng8 g4 h6 Bf4 Ra7 Qd2 Ra4 Qg2 gxf4 g5 Ra3 g6 Ra8 Qg5 hxg5 Kf2 e5 a4 Ke7 h4 Kd6 c4 Kc5 h5 d5 f6 d3 f7 Kd4 c5 e3+ Kf3 d2 c6 d1R h6 b3 c7 g4+ Kg2 e2 g7 e1B h7 b2 Kh2 f3 Bc4 f2 Be2 f1N+ Kg2 g3 Kf3 g2 Rh2 Nc6 Ra2 Nh6 g8B Na5 Ba6 Nf5 Nh3 g1B Rh1 Rd3+ Kg2 Rf3 Bd3 Ng7 Be4 Bef2 Na3 Kc3 Bb1 d4 Be4 b1Q Bd3 Nd2 Ng5 Ndb3 Rd2 Ra6 Bf1 d3 Ne6 Qh4 Rd1 d2 Nb5+ Kc2 Nc3 Kb2 Rh3 Be7 f8R Bf6 Re8 Qb4 Rh4 Qa2 Rd4 Rf4 Bf7 Rf8 h8N Rb6 Rc1 d1R Bh5 Rd3 Nf7 Rd6 Nh6 b6 Bd1 Ba6 c8B Rdf3 Rc4 Rdd3 Bd7 Bc5 Bc8 Bd6 Bb7 Bb8 Rd4 Bf2 Be4 Nh5 Bb7 Bh8 Bc6 R8f6 Rc2+ Ka3 Rd2 Qb2 Rd7 Ng7 Ra7 Rde3 Rd5 Rd3 Rd4 Qd2 Bb7 Kb2 Kh2 Rfe3 Bh1 Qe2 Kg2 Qh5 Nb1 Ref3 Nc3 Qh2+
1R3bB1/3pn2N/1K4br/rP4n1/k4NRb/2qpb3/1Bnqq1qR/1B2N3 w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Bh3 f3 Qd4 g3 Bf1 cxd6 Qg4 d5 Qh3 d4 Qg2 fxg2 Kd2 a5 Kd3 g5 Kc4 f5 Kb5 f4 c4 a3 e4 d3 h4 a2 b4 f3 e5 a4 h5 f2 e6 a3 c5 g4 e7 Nf6 c6 Rh6 c7 Ra5+ Kb6 Bb7 b5 Nh7+ Kc5 Ng5 c8R Be4 Nd2 Bg6 Nb3 Nc6 Ne2 g1Q Bg2 f1Q+ Nbd4 Qh2 Bf3 g2 Nf4 g1B Bb2 g3 Rb1 a1B Bd1 a2 Rb8 g2 Bc2 Qc8 Kb6 Qe2 Re1 Be3 Reg1 Kf7 e8B+ Ke7 Bb1 Kd6 Bf7 Ne7 Be6 Qc3 Bg8 Qg3 Rh4 Qh2 Rh1 g1Q Rg4 Qhg2 Rh3 Qgc1 Rh2 Rh8 h6 Q1d2 Ne6 Kd5 h7 Kc4 Nf4+ Kb4 Be6 Rg8 h8N Ka4 Nf7 Rh8 Bc4 Rh6 Bd5 Bf2 Be6 Bh4 Nf3 Qce5 Ne1 Qec3 Ba3 Bb2 Bc4 Bc1 Bb2 a1N Bca2 Ne4 Ng5 Nc2 Nh7 Ng5 Ba1 Ba3 Bg8 Bc5+ Kc7 Nc6 Bb2 Be3 Kb7 N2d4 Kc7 Ne7+ Kb6 Nc2#
BnR1N2B/p2KR3/p4rn1/1qq3qR/n1pNP3/2N4n/n2b4/1bk2Br1 w - - 0 1 legal: proof: b4 g5 h4 gxh4 f4 e5 c4 exf4 a4 d5 a5 dxc4 a6 bxa6 Qb3 cxb3 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5+ Kh5 Kd4 g4 c5 d3 f5 g5 h3 g6 f3 g7 h2 b5 b2 b6 f2 b7 f4 Ra5 f3 Nd2 Ke3 d4 b1N d5 Nc3 d6 Na4 d7 Ne7 Kg5 h5 Kf6 h4 Ke6 h3 g8B Nbc6 b8N Rh6+ Kf7 Ng6 Ke6 Qg5 Bg2 f1N Rb5 f2 Ra5 Ng3 Ngf3 f1Q Ng1 Ne4 Bf3 Nec3 Bf7 Na2 Bb2 c4 Bh8 Bb4 Ne4 Qb1 Bg2 Bd2 Nc3 Qbb5 Nf3 Qgc5 Ra1 h1N Nd4 h2 Re1 Nf2 Bf1 h1Q Bg8 Bb7 d8R Qg1 Rc8 Qgg5 Nd7 Nh3 Nf6 Rb8 Kd7 Ra8 Rc7 Rf8 Ne8 Rf6 Bf7 Rh4 Bd5 Rg4 Bh1 Rg1 Rc8 Nce5+ Kd8 Be4 Bhg2 Bd3 Ba8 Nc6+ Kd7 Bb1 Ne4 Bb4 Nc3 Kd2 e3 Qb8 Re2+ Kc1 Rb5 Qf8 Re5 Qb5 e4 Ba5 Rh2 Qfc5 Re7 Bb4 Nd1 Bd2 Nc3 Nhf4 Rh6 Nh3 Rh5 Nb8+
5Bq1/4r2q/q2NQB1P/2B1bp2/1R1p2bB/1Bpn1q2/1N3b1n/1kbK4 w - - 0 1 legal: proof: d4 h5 g4 hxg4 a4 b5 c4 bxa4 c5 d6 d5 dxc5 b4 a5 e4 Bd7 e5 Ra6 Ra3 Rb6 Rd3 Rd6 exd6 Bc8 Rd4 cxd4 h4 Kd7 b5 g5 f3 e5 b6 c5 h5 g3 h6 g4 b7 g2 Bd2 a3 Bf4 e4 Rh3 a4 Bc1 e3 Rh1 e2 Qb3 c4 Rh3 g3 Bf4 a2 Qc2 a1B Rh4 a3 Qh7 c3 Nd2 a2 Be3 Nf6 Nc4 Qe7 Qg6 Ng4 Rh1 Bg7 Nb2 Be5 Nc4 Rh7 Rh3 Nh2 Bc1 Bb2 Rh5 a1Q Nh3 g1Q Ng5 g2 Ne4 Nc6 b8B Qa6 Ba7 Nb4 Bc5 f6 Bg5 Bc1 Bh4 Qh1 Qg8 g1Q Nb2 Qhg2 Qf7 Qg8 Rf5 Q1g2 Qe6+ Kd8 d7 Kc7 d6+ Kc6 d8B Kb5 d7 Rf7 Nd1 Ka4 Nb2+ Ka3 Nd6 Rg7 Bc7 Qef7 d8B Qfg6 Nbc4+ Ka2 Nb2+ Kb1 Be7 Q8h7 Bf8 Re7 Bd8 Qgg8 Rg5 Bd7 Rg7 f5 Rg6 Be8 Rg7 Bh5 Bf6 Re8 Rb7 Bg4 Bh4 Qg1 Bdf6 Re7 Rb5 Qh1 Kf2 e1B+ Ke2 Nd3 Rb4 Qg1 Kd1 Qg2 Be2 Bf2 Bf1 Ne1 Bc4 Nd3 Bb3 Qxf3#
bQBRn1k1/3qrn2/1n2rRq1/RP4b1/rq2r2R/6q1/qNR2KN1/4r3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 e4 g5 c4 f5 b4 Kf7 h4 a5 c5 d5 h5 g2 e5 d3 b5 d4 h6 d2+ Ke2 a3 h7 a2 c6 g3 c7 f4 Qe1 d1R Nh3 g1Q Rh2 g2 Nf2 a4 Qc3 d3+ Kf3 g4+ Ke4 d2 Rh4 g3 Kf3 a3 Rh2 Qh4 Ne4 Nf6 Nf2 Bh6 Rh1 Bb7+ Ne4 Bg5 c8R Re1 Rc4 d1Q+ Be2 Re8 h8R Re6 Rh2 Ra4 Qc2 Ba8 Qb3 Ne8 Qc2 Nd7 Rh3 Nb6 Rh7+ Kg8 Rf7 Qd7 Nc3 Qc5 Qb3 g1Q Nd1 g2 Rf6 Qb4 Rc2 Qhh7 Rh4 Qg6 Nb2 Qf2+ Kg4 g1N Nd2 f3+ Ndc4 Nh3 Qc3 Qe3 Kg3 f2+ Bf3 Qed3 Ne3 f1R Ng2 Re4 Qc8 Rfe1 Qb8 Re7 e6 Qdb3 Rb1 a1Q Rd1 Qaa2 Ra1 Nf4 Kf2 Nd3+ Kg3 Ra6 Bg4 Ne5+ Kf2 Nf7 Bf3 Rg4 Bb7 Rge4 Bc8 Ra4 Rc5 Qh3 Rc6 R1e3 Rc2 Qg3+ Kg1 Qac4 Re1 a2 Rhf4 a1R Nd3 Nc7 Rb2 Qdd6 Qa7 R4a3 Rc2 Re5 Nb2 R3e4 Qb8 Re8 e7 Qd7 Rh4 Re6 Rd1 Rae3 Rdc1 Ra7 Ra1 Re1+ Rf1 Rf8 e8R Ra3 Rd8 Rfe8 Ra2 Ra6 Ra4 Qa2 Ra3 Kg7 Ra4 R8e7 Ra3 Ne8 Ra4 R1e3 Rf6 Kg8 Ra3 Qh3 Kf2 Re1 Rac3 Qg4 Rc7 Ra4 Ra7 Qh3 Ra5 Qg3+
n1q4q/b1bBqrPn/2n4Q/BN6/Nr1rb3/5q1R/N1N2N2/b1K3kr w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 gxf4 d4 f5 a4 fxe4 d5 h5 g5 c6 Ra3 cxd5 Rg3 d4 Rg4 hxg4 Kd2 Kf7 c4 Ke6 h4 Kf5 h5 d5 a5 e5 g6 b5 c5 g3 c6 b3 g7 b4 c7 e3+ Ke1 Ke4 h6 g2 h7 e2 Kd2 e1B+ Ke2 b2 a6 b3 a7 Bb7 c8N Nc6 Qc2+ d3+ Kd1 f3 Be3 f2 Bg5 d4 Be3 Rb8 a8N Nf6 Ncb6 Bd6 Nc7 Qc8 Bh6 Bc3 Na6 Bc7 Na3 b1N Rh2 b2 Be3 Nd2 Qa4 Nc4 Qb5 b1Q+ Bc1 d2 Nc2 Ba1 Nd7 Nb6 Qb2 Na8 Ncb4 Ke3 Rh1 e4 Ne2 g1B Nf4 Qa2 Nb6 Qag8 Be2 f1R+ Kc2 Kf2 Na2 d1R Bd2 e3 Bb5 e2 Rh3 e1Q Qc1 Qe7 Ba5 d3+ Kb1 d2 Na4 Qge8 N6b4 Rf8 h8N Rf7 Kc2 Nh7 Nfd3+ Kg2 Kb1 Ba7 Nc2 Rh1 Nf2 Kg1 Ba6 Rf6 Nf7 Qh8 Nd6 Rf7 Bd3 Rf1 Bf5 d1Q Nb5 Qf3 Bd7 Rd1 Be1 Rd4 Qh6 Nb4 Bc3 Be4 Kc1 Nc6 Ba5 Rb6 Nd6 Rb3 Nb5 Rbb4
2bN3q/6rQ/kPr3r1/2BRnr2/n6b/bN2Kpq1/1q1qR1N1/NN5q w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Kd2 f3 Ra2 g3 Bg2 fxg2 Ra1 cxd6 Ke1 d5 Ra3 d4 Ra2 Qh4 Ra1 Qd8 Kd2 f5 c4 g5 h4 d5 b4 Kd7 e4 Kc6 c5 Kb5 c6 a5 e5 g4 c7 f4 e6 a3 e7 d3 e8N d4 h5 a2 h6 f3 h7 a4 Ne2 g1Q Bb2 a3 Nf4 g2 Nd5 g3 Ne7 Ra5 Qe2 Na6 Qf1 Nh6 Ng8 Nc5 Rh2 Ka6 Ne7 Na4 Ng7 Rf5 Nh5 Ng4 Nc6 Ne5 Na5 Be7 Bc3 Bh4 Nf4 Rhf8 h8N R8f6 Qe2 Rc6 Nf7 Qh8 Qe4 Qh1 Nb3 g1R Nd8 g2 Bb2 Rg6 Bc3 Rc1 Bb2 g1Q Re2 Qg3 Ng2 Rcc6 b5+ Ka7 b6+ Ka6 Nc3 Rg7 Rd1 a1Q Nb1 a2 Ba3 Rgg6 Ne3 Qb2+ Nc2 a1B Bb4 Qa2 Bc5 Bb2 Nca1 Ba3+ Nc2 Be6 c8N Qb2 Nd6 Bc8 Nc4 Rg7 Ne3 Rgg6 Ng2 Rg7 Rg1 Rgg6 Rf2 Rg7 Ke1 d2+ Kf1 d3 Re2 Rgg6 Nca1 d1R+ Re1 Rd2 Re2 Rf7 Qf5 Rfg7 Qh5 Rc2 Qh6 d2 Qh7 Qhh3 Rh1 Rc4 Rh2 Rf4 Kg1 Rf5 Rh1 Be7 Kf1 Qh6 Rh5 d1Q+ Re1 Ng4 Bg1 Qdd2 Bc5 Rf4 Rd5 Ne5 Re2 Rf5 Kg1 Qg4 Kf2 Qh1 Rd6 Qdc3 Rd3 Bh4+ Ke3 Qcb4 Rd1 Qg3 Rd5 Q4d2+
1r2Q3/3pK1N1/bBN3R1/1brb1q2/r3q1N1/k4NN1/nbPq3n/3b1qR1 w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 b5 h4 g5 e4 d3 a4 b3 a5 Kb4 e5 g4 h5 d2 a6 b2 h6 Bg7 a7 Na6 e6 Qh4 e7 Nf6 Qf3 d1B Nc3 b1Q Bg5 Qc1 e8N Qd2 Rc1 Ka3 h7 b4 Qf1 b3 Rb1 b2 Ne4 Nb4 Qb5 Na2 Nf2 Ba6 Nc7 Rhb8 Rc1 b1B Ne2 g1Q h8N g2 Ng6 g3 Ne6 Ng4 Bf6 Nh2 N6d4 Qf1 Qe5 g1R Ne7 g2 Ng3 Bh8 Bg7 Qe4+ Kf6 Qb5 Qe6 Re1 Qe5 g1Q Nec6 Qgf1 Ke7 f5 Ng4 f4 Rg1 f3 Bf8 f2 Nf3 Re3 Bh6 Rc3 Be3 Qbd3 Bb6 Rc5 Qe6 Qf5 Qf7 Bb2 Qe8 Be2 Re1 Bd1 Re6 Qde4 Rh1 Rb7 Rg1 Rab8 a8N Ra7 Nc7 Bb5 Nb4 Ra4 Nc6 Nc1 Qh8 Ba2 Ne8 Bd5 Ng7 Na2 Qe8 Ba6 Na5 Qfe1 Nc6 f1B N7h5 Bfb5 Ng7 Be5 Rh6 Qf1 Rg6 Bb2+
8/p2N4/1q2B1B1/3q1Bkb/1n2Rbqr/P2B1n1B/1K1q3b/Q1nqrb1R w - - 0 1 illegal: Other
1nB3bK/1rP3Nq/5r1B/6NN/1n2bRN1/qkN3p1/1qr1Q3/3bb1rn w - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 Kd2 Ke7 Kd3 Ke6 Ke4 b5 c4 f5+ Kf4 g5+ Kf3 d5 e4 d3 h4 d2 a5 b3 e5 g4+ Kf4 b4 a6 d4 c5 Kd5 e6 b2 h5 d3 a7 Kc4 Ke5 b3 c6 f4 h6 f3 e7 f2 e8N Nf6 h7 Be6 c7 Nd5 Nc3 b1B Nce2 b2 Qe1 d1N Rh5 d2 Rh2 Nb4 Rh3 Qd6+ Kf6 Kb3 Nf3 g1Q Ng7 g2 Rh2 g3 Ng5 Qh1 Rh4 g1R Bh3 f1R+ Nf4 Be4 Qe2 Nf2 Nfh5 b1Q Rf4 d1B Bg4 Rg8 h8N Qa6 Nhf7 Qb2+ Ne5 Qaa3 Bh3 Rh8 Bf5 Bg8 Bc8 Qh2 Be3 Nh1 Bd2 Rf3 Bc1 Rc3 Ng4 Bc5 Bd2 Bf2 Be3 Be1 Bc1 N8a6 Bd2 Rb8 a8N Rb5 Nb6 Nb8 Na4 Rc2+ Nc3 Rb7 Be3 Bgh7 Kf7 Bg8+ Kf8 Rh6 Bc1 Bc4 Be3 Re6 Kg8 Rf6+ Kh8 Qh3 Bc5 Bg8 Bf8 Qa8 N7e6 Qh2 Bh6 Qaa3 Neg7 Qh3 Ne3 Qf5 Ng4 Qh7+
q1b2Bb1/3bbR2/5N2/1P3N2/3qNQ1p/NrnkNnq1/q5Rr/1b1K3b w - - 0 1 legal: proof: h4 b5 f4 c5 d4 cxd4 b4 g5 a4 bxa4 f5 gxh4 e3 e6 Bc4 exf5 Ba2 f4 Bb3 axb3 g4 Ke7 c4 Ke6 b5 Ke5 c5 Ke4 g5 d5 c6 f5 g6 a5 g7 h5 c7 f3 Ra4 f2+ Ke2 f1B+ Ke1 f4 Nf3 h3 Ng1 f3 Rc4 b2 Rc3 f2+ Kd2 d3 Qa4+ d4 Kd1 d2 Nf3 h2 Rc4 Nc6 Rc5 Bc4 Rd5 f1B Qb4 a4 Kc2 d3+ Kc3 d1Q Rd7 a3 Rg1 h1B Bd2 a2 Nh4 a1Q Ng2 Qa2 Rf7 Qe1 Na3 Nf6 g8N b1B Ne7 Ne5 Nf5 Qg3 Qa4 Bd7 c8N Be7 Be1 d2 Ncd6+ Kd5 Qb4 d1Q Ne4 Nf3 Bf2 Bb3 Qc4+ Ke5 Qc7+ Kd5 Qf4 Ra4 Be1 Rb4 Bd2 Qa8 Bc1 Ng5 Bb2 Qdg4 Kd2 Nf3+ Kc1 Bbc4 Kd1 Rb3 Bc3 Rh7 Bb4 Q4h4 Ne1 Rh6 Nec2 Bh3 Rg2 Bc8 Nfd6 Bhd7 Nf5 Bd8 Bf8 Be7 Ng5 Kc5 e4 Nd5 e5 Rh8 Nce3 Nc3+ Kc1 Kb4 Ne4 Qf6 e6 Qd4 Nd2 Ne4 Kd1 Kc3 Nac2 Kd3 Na3 Bh4 e7 Nc3+ Kc1 Bce6 e8N Be7 Ne4 Rh6 Rh7 Bg8 N8f6 Rg6 Rg7 Rg4 Rf7 Rh4 Nd2 Rh2 Nde4 Na4 Kd1 h4 Qg4 Qc4 Qg5 Qd4 Qf4 Nc3+
1Rr1KB2/1q3n1b/qR4Qr/N3R1Rn/3k4/NR1q1npP/r3rq2/n3b3 w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 d5 e4 f5 a4 g5 c4 d3 h3 d2 a5 f4 a6 f3 a7 d4 c5 b3 c6 b2 c7 d3 Ra6 f2 Qf1 d1N Ra5 d2 Na3 b1Q+ Ka4+ Kd4 e5 g4 e6 Rh6 e7 Ne3 e8R d1R Re6 Re1 Rh2 Nd7 Rb6 Ne5 Qe2 f1Q Qa6 Bf5 c8R Bb4 Rc7 Bh7 Rf6 Rc8 a8R Re2 Kb5 Nc2 Rcf7 Na1 Rf3 Nf6 Rb3 Nh5 Qg6 Be1 Rc7 Nf7 Rb8 b6 Kc6 b5 Bg5 b4 Ra6 Qbf5 Be7 Q5f2 Ra5 Ra2 Bf8 Qa6+ Rb6 Qe7 Rg5 Qee3 Kd7 Qed3 Rbc3 b3 R7c5 b2 Rce5 b1R Rb8 Rbb2 Rcb3 Rbc2 R3b6 Re2 Nf3+ Kc3+ Qd6 g1N Nd4 g2 Nb3 g3 Na5 Nf3 Ke7 g1Q Qg6 Qgg2 Rh1 Bd2 Rhb1 Kd4 R1b2 Be1 R2b3 Nh4 Kd7 Qga8 Ke7 Nf3 Kd7 Rcc2 Ke7 Q8b7+ Ke8 Rc8+
Br2r1r1/B7/1PN1kr2/nN2q1R1/B3Bqp1/1p2Qnb1/3K1bb1/1r1B3n w - - 0 1 legal: proof: f4 a5 g4 e5 d4 exf4 g5 c5 g6 cxd4 Nd2 hxg6 Nb1 g5 Be3 g4 Bd2 Rh6 Bc1 Rh8 b4 b6 a4 Rh7 Qd2 Rh5 b5 Rh6 Qb4 axb4 a5 Rh5 a6 Rh8 Ra5 bxa5 c4 Ke7 e4 d5 h4 g5 a7 f5 b6 b3 e5 a4 h5 g3 c5 d3 e6 d2+ Kd1 d4 h6 g4 h7 a3 c6 g2 c7 f3 Rh2 f4 Nc3 f2 Na4 a2 Bb2 a1B Ne2 g1N Bc1 f3 Nec3 Nf6 Nb2 Qe8 Bg2 Nh5 Bh1 Rg8 h8Q Nc6 Nb5 Na5 Qe5 f1R+ Qe1 f2 Nd3 Nf3 Nb2 Rb8 a8B Ng3 Rh3 Bb7 c8B Bc6 Bg2 Nh1 Nc4 Bb7 Ke2 d1R Bf4 Rb1 Rh5 d3+ Ke3 d2 Ne5 d1R Rg5 Be4 Ba6 Rdd8 Nc6+ Kf6 e7 Be5 Bh2 Bg3 Qc1 Qh5 e8B Ke6 Ke2 Qh8 Qe3 Qe5 B6b7 Bc5 Ba6 Nd4+ Kd2 Bd5 Be4 Rdc8 Bc2 Bg2 Bd1 Rd8 Bg6 Rde8 Bgc2 Nf5 Be4 Nh4 Nc3 Bd4 Bb5 Bc5 Ba4 Nf3+ Kd3 Rg1 Nb5 f1Q+ Be2 Qc1 Bd1 Rf1 Ke2 Nh4 Kd3 Rf6 Ke2 Qc4+ Kd2 Bd4 Bec2 Qf1 Be4 Qff4 Bef3 Be1+ Kd3 Qfe4+ Ke2 Rb7 Bg3 Qc5 Bb8 Bg3 Ba7 Qce5 Kd2 Rbb8 Qf4 Bdf2 Qe3 Q4f4 Be4 Nf3+
2K1r1q1/5pQ1/2b2n2/B1bBPq2/RbrN1B2/R3rn2/q2p2B1/k3Bqb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 c4 g5 h4 d5+ Ke5 a5 e4 g3 h5 g4 h6 d3 h7 f3 b3 g2 c5 d2 c6 g3 c7 a3 Bb2 f2 Bc1 a2 Rh6 a4 Qc2 d1R Nf3 g1B Nd4 a3 Re6 g2 Nd2 Nf6 Ne2 d4 Qb2 d3 Nd4 Ra6 Nc4 Bd7 c8B Re1 Bb7 Re3 Bd5 Bc6 Nd6 Be7 Ne8 Nbd7+ Kf5 Rg8 h8B Rg4 Bg7 Ne5 Bd2+ Kc5 Ba5 d2 Bh6 Nf3 Bf4 Bd6 Re7 Qa8 Ra7 Qb8 Bd3 f1Q Be2 Qb1 Bf1 Bf2 Ra8 g1B Bg2 Qf1 Ne6+ Kb5 b4 Ka4 b5 Bb4 b6 Qd8 b7 Rb6 Nd6 Qg8 b8B Rh4 Ne8 Qd3 Rd1 a1Q Nd4 Qa2 Ra1 Qf1 Bg3 Qab1 Bbf4 a2 Qc2+ Ka3 e5 Qbe1 Qc5 Kb2 Qf8 Qee2 Qg7 Qa6 Rc1 a1Q Rc3 Qa2 Ra3 Ka1 Ra7 Re4 Ra4 Qad3 Ra3 Be3 Be1 Bef2 Ra6 Re3+ Be4 Qfe2 Ne6 Ng4 Bg5 Bb5 Ra7 Rd6 Bc7 Qf1 R7a4 Re2 Ba5 Bc6 Bh6 Bfc5 Bg5 Nf2 Kf6 Re3 Ke7 Ng4 Bd5 Nf6 Bh6 Rd4 Bf4 Rc4 Nd4 Re6+ Kd8 Qf5 Kc8 Rxe8+
R1K1N3/1pNbb3/r3RBn1/2PQ1R2/nnr1qp2/7R/2bpq1b1/3k1b1R w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 a3 gxh4 e3 Nh6 Bc4 Ng8 Ba2 b3 Kf2 bxa2 Ke2 Ra7 Ke1 Ra8 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 h5 c4 f5 g4 h3 c5 d3 a4 h2 e4 h4 a5 h3 a6 d2 a7 f3 e5 Kf4 g5 Ke3 g6 f2 e6 f1B g7 Qe7 Ke5 d5 Ba3 d4 Nc3 d3 Qb1 d1B Nf3 d2 Qb4 Bd7 Nd5+ Ke2 Qb3 Rh4 Ng5 Bc2 Nf7 Rc4 Nd6 f4 Nc7 Qe8 Rd1 a1N Bb2 Ne7 g8R Ng6+ Kd5 Be7 Bf6 Nh4 Rb1 Ng6 Rb2 Kd1 Rf8 Bb5 Qa2 Nd7 Rb3 Ba4 Bb2 Bb5 Rf5 Ba4 Bf6 Bb5 Rg1 h1B+ Rf3 Bg2 Rh1 h2 Qb3 Bf8 e7 Nb6+ Ke6 Na4 Rh3 Bbc6 Qd3 Bb5 Qd5 Bc6 Ndb5 Bd7+ Kd6 Qf7 Ne8 Qe6+ Kc7 Qe3 Ng7 Qe2 e8R Be7 Qe5 Rb8 a8R Rd8 Qd5 Rb8 Ra6 Ra8 Re6 Ra5 Ra8 Ra6 Rg1 h1Q Ne8 Bb1 Kb8 Nc2 Nbc7 Nb4 Rg5 Qh2 Rh1 Bc2 Rge5 Qe4 Rf5 Bc6 Kc8 Bb5 Rb3 Qh5 Ra3 Qhe2 Rah3 Bd7+
1nK1R1QR/1pB1b2n/5rRb/P1n4q/pkq5/1b1R1R2/r2p3B/q1b1N3 w - - 0 1 illegal: No proof kernel
k3q2N/nn6/n1p1B1rR/1Bq3Q1/N1n1Kq2/3pP1rB/p4qB1/5bbB w - - 0 1 illegal: Other
N2n4/2Kr2R1/4Q1rP/N4Brp/br3kN1/p2R1bp1/1Nnpnbq1/4N3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 f5 cxd4 f6 h4 Ra3 exf6 Ra2 f5 Ra1 f4 Be3 g6 Bf2 Rh6 Bg3 hxg3 h4 Rh8 h5 Qg5 h6 Qa5+ Qd2 Qb6 Qa5 Qd8 Qh5 gxh5 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 a5 Kb5 d5 c4 a3 b4 d3 e4 d2 c5 d1B g5 a4 c6 a2 c7 a3 Kb6 f3 g6 f2 b5 f4 g7 f3 Bh3 f1R Bg4 f2 Rh4 d4 Nc3 d3 Na4 Nc6 Nf3+ Kf4 e5 Nd4 e6 Ne2 e7 Ra5 e8Q Ne7 g8N Rh7 Nb2 Bb7 Ne1 Nc6 Nf6 Qd5 c8N Nd8 Qe6 Ba4 Rd1 a1N Rd2 Bg7 Kc7 Qg2 b6 Bf3 b7 Nc2 b8N Rg5 Nb6 Rh1 Na8 f1R Nc6 Rg6 Nd7 Bd4 Na5 Bf2 Rd1 Rf7 Rd2 Rf5 Ne5 Rfg5 Bf5+ Ke3 Rc4 Rh4 Rc6 Rb4 Ng4+ Kf4 Rd6 Rh1 Rd7 Rh4 Rd1 Rd4 Rg7 d2 Rc1 Ne3 Rc3 Nc2 Rd3 Rb4 Nf6 Rhg4 Be4 Rd5 Bf5 R4g5 Ng4 Rd7+
1rbN2N1/7R/np1B2q1/2pK1Q1n/5PR1/2bpr2k/1rr2p2/1N1qNN1r w - - 0 1 illegal: No proof kernel
2R4Q/3R1r1n/1R3qp1/B4pkb/1RP2Np1/2pbr2r/B2r1b2/1R2n1Kb w - - 0 1 legal: proof: c4 c5 b4 e5 d4 cxd4 g4 h5 f4 exf4 b5 hxg4 b6 axb6 Nh3 b5 Ng1 b4 Nc3 bxc3 Kf2 Ke7 h4 Kf6 e4 b5 a4 f3 a5 b4 h5 d3 a6 d2 a7 b3 h6 b2 h7 b1B e5+ Kg5 e6 Bc5+ Kg3 f2 Kh2 Nc6 e7 Nb4 e8R Nd3 Qf3 Nf6 Ba3 d1B Re3 Bb7 Qh3 Ne1 Ne2 Bd3 Nf4 Bd5 Be2 f1R Re6 Bf2 Bb4 Qf8 Ra5 Re8 Rb6 Re3 Ra4 Ba8 Rg1 Bh1 a8R Ng2 Rd6 Bf5 R4a7 Be1 Rd3 d5 Rd2 d4 Nd3 Ba4 Rb7 Be8 Bd1 Rf4 Ra1 Bf2 Bb3 Qd6 Rgd1 Ne1 Ba5 Bg6 Rb6 Rf5+ Ne5 d3 Rb2 d2 Ba2 Qd8 R2b4 Qe7 Rdc1 d1R Rab1 Rd7 Rd1 Qf8 Rd4 Rff3 Rf4 Rd2 Rd4 Bd3 Ng6 Qe7 Rd8 Rf8 h8R Rg3 Qg2 Qe5 Qc6 Nh7 Qc8 f5 Nf4 Bh5 Rd7 g6 Qb8 Qe7 Qe5 Rf6 Rc8 Rf7 Qh8 Rgf3 Rdc7 Qf6 Rd7 Bh4+ Kg1 Rh3 Rg8 Bg3 Rc8 Bf2#
2Rq2B1/2q2rKn/1pr2pB1/kbp5/1bp1B3/n2B3N/1Q1Pq2p/2BN2b1 w - - 0 1 illegal: No possible last move, all moves rejected
q7/1nQ2bk1/nRNqRq2/Rp1Nbr2/PKbB4/1n5p/4N1r1/4N3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 Bd7 Ne2 Be6 Ng1 Bc8 d4 gxh4 d6 cxd6 a3 e5 Be2 exd4 Bc4 d5 Ba2 b3 Be3 bxa2 Bf4 Ra6 Bc1 Ra8 Kd2 Kf7 f4 h5 g4 b5 a4 h3 f6 h2 f5 h4 g5 d3 Kc3 h3 Ne2 d2 Na3 d4+ Kb3 d3 Qc2 d1B Rg1 h1Q Bb2 d2 Bd4 Ne7 Kb4 Rh5 Qc7 Bg7 Nc2 Nd7 Ne1 Bb3 g6+ Kg8 Rb1 d1Q f7+ Kh8 f8N a1N f6 Bc4 f7 Nb3 Rg4 Be5 Ne6 Ndc5 N6f4 Nf5 Nd5 Be6 f8R+ Bg8 Rg5 Nd6 g7+ Kh7 Rg4 Bf7 g8N Rf5 Nge7 Ndb7 Nc6 Qf6 Rg6 Re8 Rh6+ Kg7 Rc1 Re6 Ra8 Re8 Rc3 Rg8 Re3 Qd3 Nde7 Qd5 Ra5 Qd8 Nd5 Qa8 Bc3 Qd4 Bb2 Qd6 Re6 Qh4 Bd4 Qf6 Re4 Kf8 Rh4 Rg2 Rh8+ Kg7 Rb8 Nd8 Rb6 Ndb7 Raa6 N3a5 Ra7 Nab3 Ra5 Na6+
k4bbb/6P1/BQ3r1n/q1q5/1B1b1b1n/K5N1/BN2Nq1p/q1rR2B1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 c4 dxc3 b4 d5 h4 gxh4 Bb2 d4 Ra3 c2 Rc3 dxc3 Ba3 Qd7 Bc1 Qd8 g4 a5 e4 f5 e5 h5 g5 h3 g6 h2 b6 h4 b7 a4 b5 h3 b6 a3 e6 a2 e7 a1B Bc4 f3 Qd4 f4 Qe5 Kd7 Qg7 Kc6 e8B+ Nd7 b8N+ Kb7 Qe7 f2+ Ke2 f3+ Kd3 f1Q+ Qe2 f2 Ba2 Qc7 Na3 Qc5 Nf3 Nh6 Nh4 Ra6 Nc6 Ka8 Bb2 c1B Kc2 Bf4 Kb3 c2 Qe3 c1B Nf5 Ne5 Nc4 Nf3 Bd4 Bcb2 Ng3 Nh4 Bc3 Qg2 Nd4 f1Q Bb4 Qgf2 Nde2 Be6 Bb5 Bg8 Rg1 Qb1 Rd1 h1Q Qe6 Bd4+ Nb2 h2 b7+ Ka7 b8B+ Ka8 Bc4 Qhd5 Qe3 Rf6 Ka3 Rh7 Ba7 Rc7 Ba6 Qd7 Qb3 Qdb5 Na4 Bac3 Nb2 Qa1 Bb6 Rd6 Ba7 Bh8 g7 Bd4 Qe3 Rf6 Bb6 Qd6 Qe6 Rc1 B6c5 Qd5 Qb6 Qe5 Bd2 Qe7 Bcb4 Qec5 Be3 Qg2 Bg1 Qf1 Qc7 Qf2 Qb6 Qa5+
B2br3/RB3p1p/qnPbr1k1/3q2N1/8/n1n4B/1rqr2R1/K1R1BQ2 w - - 0 1 legal: proof: b4 a5 h4 axb4 d4 d5 f4 c5 a4 cxd4 f5 g5 Qd3 gxh4 Na3 bxa3 Qc4 e6 Qc7 exf5 Qxc8 f4 Kd1 b5 e4 d3 g4 d2 c4 h3 Kc2 d1Q+ Kb1 d4 a5 b4 e5 h2 c5 a2+ Kb2 d3 c6 f3 g5 f2 a6 b3 g6 d2 a7 Ke7 g7 Nd7 e6 Kf6 e7 Qc2+ Ka3 d1R Bf4 b2 Rb1 a1B Ka2 Kg6 e8B Bd6 Qa6 Ngf6 Qc4 Ne4 Nh3 Rb8 a8B Rd2 Bg3 Nb6 Bd7 Re8 Bc8 Qd7 Rg1 h1R Ng5 Rh6 Bh3 f1Q Rc1 Qe6 Bcb7 Qd5 Rg2 Qfd3 Be5 b1N+ Bb2 Na3 g8R+ Kh5 Rf8 Rhe6 Rh8 Kg6 Rf8 R8e7 Rd8 Re8 Rd7 Qa4 Re7 Qa6 Rc7 Rd1 Bh8 Bf6 Rd7 Bfe7 Ka1 Rd2 Bc3 Qc2 Qf1 Bd8 Rc7 Rd3 Be1 Nc3 Bc8 Rd4 Ra7 Rd2 Bcb7 Nba4 Bc8 Rb2 Bcb7 Nb6
B3N2n/2rRn3/p2pK3/nBpR4/3nbpr1/1PQ5/R2r2RB/2n1k1b1 w - - 0 1 legal: proof: f4 c5 d4 e5 a4 exf4 h4 b5 b3 bxa4 d5 g5 c3 gxh4 Na3 Qa5 Nb5 Qxb5 d6 Qb4 cxb4 Bxd6 Kd2 Be7 Ke1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Ke5 Kc4 Ke4 g4 h5 g5 a6 e3 a3 b5 f3 g6 d6 b6 h3 g7 f2 b7 h2 Nf3 a2 Qd2 h4 Be2 f1N Qb4 h3 Ng1 f4 Ba3 Nc6 b8R Nd2+ Kc3+ Nc4 Bc1 Nce7 Nf3 Bb7 Rd8 Ng6 Nd4 Rc8 Nb5 Rc7 Rd1 h1N Rd7 h2 Rd5 N8e7 g8R Ng3 Bf1 Kf3 e4 Kf2 e5 h1R e6 R8h6 Bg2 Rd1 Be3+ Ke1 Bg1 Rh4 Bh2 Rg4 Qa5 Nh8 Bh1 Neg6 e7 Bc6 e8B Ne7 Qb4 Na5 Qd4 Bg7 Qf6 Nb7 Kc4 Ne2 Bg2 Nc1 Qc3+ Rd2 Be4 Rc8 Nc7 Bd4 Rgg5 Bg1 Bf3 Rh4 Rg2 Rg4 Bg6 Rg3 Ne8 Rc7 Bd3 Rg8 Rb1 a1N Rb2 Nc2 Ra2 Nd4 Rh5 Ba4 Rhg5 Nec6 Kd5 Nba5 Rf5 Rg4 Bde2 Nc2+ Ke6 Ne7 Ba8 Bc6 Bb5 Be4 Rd5 Nd4+
BNqNB1Q1/2K4b/rr4qR/2nr3n/b6k/1r1P2N1/1bB1q3/rb1nN3 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 e5 a4 exf4 Kf2 d5 Bb2 dxc4 Ke1 h6 Be5 f3 Bf4 Ra6 Ra3 Ra8 Rd3 Bc5 Rd5 gxf4 g5 Be7 g6 Bf8 Rg5 hxg5 Kf2 Ke7 h4 Kf6 e4 b5 a5 c5 h5 c3 g7 b3 h6 c2 a6 c1R a7 c4 h7 g4 e5+ Kg5 e6 f5 e7 c3 e8N g3+ Ke1 c2 Nc7 b4 Be2 b2 Rh3 g2 Kf2 b3 Nb5 Na6 N1c3 b1R Nd4 b2 Bd3 Ba3 Nc6 Nf6 g8B Bd7 Qe1 Qc8 Nge2 Nc5 Nb8 Rd1 Nd4 c1R Qe2 Ba4 Qe4 Nh5 Rg3+ Kh4 Nce2 Rc3 Ng1 Rb3 Nc2 Ra1 Qc4 b1B Ne3 Bb2 Bf7 Rf8 Be8 Rf6 h8N Ra6 Nc6 Rab8 a8B R8b6 Ne2 g1N Nc1 Ne2 Nc2 Nc3 Rg2 Kh3 Ne1 Kh4 Kg1 f2+ Kh2 f1Q Ne2 Qf2 Qg8 f3 Nb8 f4 Ng3 Qe2 Nf7 f2 Bc2 f1Q Nd8 f3 Rf2 Qee6 Re2 Qg6 Re6 f2 Rf6 Qgd3 Rh6 Qfe2 Kg2 Qg6 Kh2 Qe7 Kg2 f1B+ Kf3 Qef7+ Ke3 Qf3+ Kd4 Bd3 Ke5 Qe2+ Kd4 Bf5 d3 Rc1 Kc4 Nd1 Kd5 Qgg4 Re6 Bh7 Rh6 Qg6 Bec6 R3b5 Bb3 Rc3 Bc2 Ne6+ Kd6 Rca3 Ke7 Rab3 Be8 Qc4 Kd7 Qcg4 Kc8 Rd5 Bac6 Q4f5 Ba8 Nc5+ Kc7 Qc8+
5q2/rR1R1B2/1n4b1/1Nb1rq2/1nqnP2B/1B3rK1/R1Qqk3/1Br2rb1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 a4 Ke7 h4 Kf6 c4 Ke5 h5 Ke4 a5 b5 e3 g5 c5 f5 c6 d5 h6 f4 a6 b3 h7 b2 c7 b1Q a7 d3 Ra3 d4 Rh4 g4 Rh5 d2+ Ke2 b4 Ra6 b3 Ra4 b2 Ra3 Nf6 Ra1 Qc2 Nf3 g1R Ra4 b1Q Rb5 g2 Kf2 g3+ Ke2 Nd5 Nh4 Na6 Rb3 Nab4 Bb2 Bc5 Bc1 Nb6 Ra2 Qc4+ Rd3 Qf8 Nf3 Bf5 c8B Bg6 Qb3 d1R Ba3 Rc1 Bh3 Re8 Bd7 Re5 Qc2 Rg8 h8R Rg7 Bg4 Rh1 Bc8 g1B Rh7 g2 Be6 Rh3 a8B+ Rb7 Rd7 Rg3 Bf7 Rh3 Rd5 Ra7 Bc6 Rg3 Ba4 Rh3 Rd7 Rg3 Ne1 Rh3 Bb3 f3+ Kd2 f2 Rb7 Rg3 Nf3 Rh3 Be2 f1R Bd1 Rg3 Ke2 Rh3 Nh4 Rhf3 Nf5 Rd5 Bb2 Re5 Bc3 Bh2 Be1 g1N+ Kd2 Ne2 Bh4 Rh3 Nd6+ Kf3 Nb5 Bg1 Rc3 d3 e4 Qb2 Rd7 Qa3 Rb7 Qa6 Rd7 Qac8 Rb7 Qf5 Rd7 Rf2 Ke1 Ke3 Rb7 Nd4 Rd7 Rf4 Rb7 Rhf3 Rd7 Bf2+ Kf1 Bg1+ Kg2 Rf1 Kg3 R4f2 Qb2 Rf4 Bdc2 Ke2 Bb1+ d2 Rb7 R4f2 Rd3 Rf4 B3c2 d1Q Bb3+ Qd2 Qc2 Nf3 Rd8 Nd4 Rdd7 R4f3+
Br6/k3bQ1n/rr3R2/b1B3rb/1rN2K1P/2Rn3r/nR3Bq1/3R1rb1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 Kd2 d5 c4 Kd7 f4 Kc7 a5 g5 f5 e5 h3 b5 c5 Kb7 f6 d3 Ke3 b4 f7 g3 c6+ Ka7 a6 g2 c7 g4 Bb2 g3 Qc1 b3 Qb1 d2 Bd3 d1R Ra2 d4+ Ke2 e3 Kf3 e2 Be4 e1N+ Ke2 d3+ Ke3 d2 Bd3 e4 Nf3 g1R Qa1 g2 Nd4 Bg4 c8R Qg5+ Kf2 e3+ Kg3 e2 Be4 Rb1 Bf3 d1R Rc4 Nc6 Rh2 Nb4 Bb7 Be7 f8B Ned3 Nc2 Nf6 Ne3 Rdf1 Rh1 Nh7 Rc3 Rb8 Nc4 Qg6 Bc1 b2 Ba8 Bh5+ Bg5 Qc6 Be3+ Rb6 Bf2 e1B Bg7 Rb8 h4 Rc1 Bd4 b1R Rac2 Na2 Bc5 Rb4 Rb2 Rc2 Qd1 Re2 Qb3 Re5 Rh2 Rh1 Rd2 g1B Rd1 Nb2 Rg2 Rh3+ Kf4 Rd5 Rg6 Rg5 Rf6 Qb7 Qa4 Qg2 Qe8 Nc1 Qg8 a2 Qf7 a1R Rcd3 Rba4 Bf3 Bb4 Rc3 Nbd3+ Ke4 Ka8 a7 Kb7 a8R R1a3 Ra5 Na2 Rb5 Ka7 Ke3 Ra6 Ke4 Ba5 Rb2 Ra4 Ke3 Ndc1 Kf4 Rb4 Ba8 Nd3+
n3bb1n/bb2R3/1rBR2QN/6bR/2R2r2/q4nq1/1KB3Pr/2n1Bk1b w - - 0 1 illegal: No possible last move
Q1Nb2bK/nr2qrn1/3qb3/1R1qkB1q/1B1Rr3/5R1R/4b1P1/4Brn1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ke1 b4 Na3 bxa3 Kd2 Kf7 c4 Kf6 f4 d5 a5 b5 c5 e5 c6 h5 f5 b4 a6 b3 c7 d3 Kc3 d2 a7 e3 Qe2 d1B Qb2 e4 Kd4 h3 Rh2 h4 Nf3 e2 Qb1 e1R Bd3 e3 Be4 a2 Ne5 b2 Ng6 e2 Bd2 Qe7 Nf4 Rh7 Bf3 Nc6+ Kd3 d4 Bc1 Rb8 a8R Na7 Nh5+ Ke5 f6 Nh6 f7 Nf5 Bg4 Ng7 Rh1 h2 Ng3 h3 Rg1 h1R Bf5 h2 Bd2 Rb7 Rb8 Be6 c8R Qd6 Qc2 b1B Ne4 Be7 f8B Bd8 Rf1 Rg1 Bc3 h1Q Rf3 Qh5 Rc4 Rgf1 Ba5 Qd5 Nd6 Bg8 Nc8 Qd6 Kd2 d3 Ke3 d2 Qa4 Be4 Bb4 Bed5 Rd4 Bde6 Qc6 Rf7 Qa8 Rb7 Rc1 a1Q Rc3 Qa3 Rcd3 Rf7 Rb5+ Qd5 Bc3 Qe7 Rh3 Bb3 Ba5 d1Q Bb4 Bc4 Bc3 Qc7 Bfb4 Qe7 Bd2 Rf4 Ra3 Ref1 Rc3 e1N Ra3 Nf3 Be1 Ng1 Rb3 R4f2 Rf3 Kf6 Kf4 Re2 Ra3 Qh2+ Kg4 Qhd6 Rh3 Ke5 Raf3 Rf6 Kg5 Rf7+ Kg6 Re3 Qc6 Be2 Qe8 Rh4 Qc6 Rhe4 Qa8 Rc3 Kh6 Rc7 Kg6 Rb7 Kh6 Rf8 Kg6 Bgf7+ Kh7 Bg8+ Kh8 Rf6 Rh4 Rf7 Rhh3 Bc4 Rc3 Qf3 Rb3 Be2 Ra3 Qg4 Raf3 Qh5+
1BQnb2b/n2rbPBr/BR5n/6kb/4R3/B6r/q1r3nb/1N1KRb2 w - - 0 1 illegal: No possible last move
1Nk1rQ2/5rr1/K2R2Nq/1PrrNb2/4bbq1/2p1nR2/3BrN2/1n2R1q1 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 Ra3 b5 Ra1 bxa4 g4 exf4 g5 f3 Bg2 fxg2 g6 hxg6 Kf2 g5 Ke1 g4 Ra3 g3 Ra2 Rh7 Ra1 Rh8 d4 Kd7 Kd2 c5 Kc3 a5 h4 f5 b4 g5 e4 f4 e5 a3 d5 f3 d6 f2 b5 f1B h5 a2 h6 a4 h7 g4 Qe2 a3 Qf3 Bh6 Qf4 Qb6 Rh3 Na6 Qf8 Ra7 Be3 Nb4 Qf3 Nd5+ Kd2 c3+ Kc2 c4 Qf8 Nge7 Qf6 Nf5 Qh4 Re8 h8N Bf4 Bf2 Nfe3+ Kc1 c2 Kd2 c1R Nf3 g1R Nc3 g2 Ng6 g3 Ne4 Bd3 Qh6 Nc3 e6+ Kd8 Nfe5 Rf7 Rb1 a1R d7 a2 e7+ Kc7 d8N Bf5 Qg7 Kc8 Ndc6 Rge1 Qf6 g1R Nb8 g2 Rf3 Qd4 Rb2 Rab1 Qh8 a1Q Qf8 Qa6 Bh4 Qd7 Nf2 Ra1 Bg5 Bde4+ Ned3 Qde6 Nde5 Qac6 Rc2 Ra7 Ra2 Rb7 Ra6 Rd7+ Ned3 Qcd6 Bh6 Qd4 Rd6 Qh8 Bg5 Qh5 Nde5 Qg4 Nh4 Qh6 Nhg6 Red8 e8R Rde7 Rd4 Rd7 Rd3 Rd5 Re6 Re8 Re7 Rc5 Rd6 Rd5+ Ned3 Ned1+ Re3 Bh2 Nd7 Qf4 Nh4 Bf3 Nb8 Qg3 R7e4 Qh3 Rf4 B3e4 Rff3 Bg3 Bd8 Bf4 Ba5 Ra1 Kc2 Ra4 Re2 Nb1 Bd2 c3 Kb3 Rc4 Ne5 Rcc5 Kb4 Ne3 Ka5 Qg3 Ka6 Qgg7 Nfg4 Qg8 Ref2 Re2 Rf1 Rh1 Rc1 Rh2 Rd1 g1Q Nf2 Rg2 Re1 Qgg6 Rf1 Qgh5 Re1 Rgg7 Nhg6 Qhg4
2QB2R1/3Pr1q1/1K1R2N1/1bp3rb/b2N1qn1/2n1n3/N2R2n1/1R1rb1bk w - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Ba3 f3 Qb3 g3 Bg2 fxg2 Bc1 axb6 Qa4+ b5 Qd1 b4 e4 Kd7 Ke2 Kc6 Ke3 f5 a4 b5 h4 g5 d4 g4 e5 Kd5 e6 b3 h5 b4 a5 b2 h6 f4+ Kd2 Ke4 h7 b3 Kc3 f3 d5 f2 e7 f1B Kb4 c3 Kc5 c2 d6 Nf6 e8N Qd7 a6 Ra7 Ne2 Kf3 Qd2 g1N Qb4 Kg2 Bf4 c1Q+ Qc3 Nc6 Nd4 Na5 Qc4 Nh3 Nf5 Qg7 Qc3 Nc4 Ra3 Rg8 h8R Bd7 Nd4 Ba4 Qa5 Ne3+ Qc3 Bfb5 Bg5 Nf4 Nd2 b1B Qc4 b2 N2b3 Bg6 Ra2 Bh5 Rh6 c6 Rd1 Re7 d7 Qd2 a7 b1N a8R Nc3 Rc1 Kh2 Rc8 g2 Rb1 g1R Nc7 g3 Kb6 g2 Nce6 Nfg4 Nc1 Kh1 Rd8 Qf2 Rd2 Rd1 Na2 g1B Qc5 Nfg2 Nf4 Qg3 Ng6 Qf4 Rc8 Re8 Qc4 Bb4 Bd8 Re7 Qc5 Bd3 Qc4 c5 Qa6 Be2 Ra8 Beb5 Qc8 Bf2 Nh8 Bg1 Rd6 Qgf7 Rb8 Rg5 Ng6 Qg7 Qc7 Ba6 Rc2 Re6 Be7 B6b5 Rg8 Ne2 Qc8 Be1 Rd2 Nc3 Bd8 Re7
1q2nqn1/q4rbN/1Q2bPp1/RB2R2R/BkB4b/b7/K3R1n1/r4rn1 w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 axb4 e5 cxd4 e6 fxe6 Ke2 e5 Ke1 e4 g4 Ra4 f5 Ra6 Nc3 Rc6 Nce2 Qb6 Nf4 Qa5 Ng6 Qd8 Bf4 gxf4 g5 Re6 Nh4 Rf6 g6 Ra6 g7 Ra8 Ng6 hxg6 Kd2 d5 Kc1 Kd7 Kb2 Kd6 a4 Kc5 h4 e5 c4 b5 h5 e3 a5 e2 f6 e1B a6 f3 h6 b3 h7 b4 a7 f2 Bh3 f1R Nf3 d3 Qc2 d4 Ra2 d2 Ra4 d1Q Qc1 d3 Qd2 e4 Ra1 e3 Qc1 d2 Bg4 e2 Ra4 Be6 Nd4 Na6 Rg1 Bh4 Bh3 e1B Ra2 Nc7 Qb1 Ne8 Nf3 Qc2+ Ka1 d1N Ng5 Qf2 Re2 b2+ Ka2 Ne3 Bf5 Ng2 Bc2 Qfd4 Ba4 Beg3 Rh1 Bgd6 Rh3 Qf2 Rhe3 b3+ Ka3 Rc8 a8R Rc7 Ra6 Rf7 Re5+ Kd4+ c5 Kc3 Ra5 Qe3 Qf5 b1Q Qf2 b2 Qg1 Qb8 Qf2 Qbd3 Qg1 Kc4+ Ka2 b1N c6 Qea7 c7 Ba3 c8B Qd8 Qb6 Nd2 Bcd7 Nf3 Bdb5+ Kb4+ Bb3 Nh6 g8B Ng1 B3c4 Bg7 Bb3 Rb7 Bf7 Rf8 h8R Ng8 Rh5 Rc7 Nh7 Rcc1 Re1 Bd7 Bfe6 Rf7 Bec4 Be6 B3a4 Qde7 R1e3 Qf8 Re2 Ra1#
b1K3q1/PQ2pRN1/b2q1nqq/4Br2/rn4B1/1N1n1r2/3NNB1b/1r5k w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 gxf4 d4 f5 a4 fxe4 d5 h5 g5 c6 Ra3 cxd5 Rg3 d4 Rg4 hxg4 Kf2 Kf7 c4 Ke6 h4 Ke5 g6 b5 a5 d5 g7 b3 a6 e3+ Ke2 Ke4 c5 g3 h5 d3+ Ke1 e2 Kd2 e1N Kc3 g2 Kb4 d2 c6 d4 Kc5 d3 c7 b2 Kb6 f3 h6 f2 h7 b4 Be2 f1R Rh3 b3 Na3 b1B Nc2 b2 Rh1 Nf6 g8N Bg7 Rh3 Rf3 Ne3 Nc6 Nf1 Nb4 Qb3 d1Q Nh6 d2 Nf5 Ned3 Nd4 Rf8 h8B Qe8 Rh1 Qg6 Rh7 Qe1 Bd1 Qh4 Nge2 Bb7 c8N g1Q Kc7 Qhh6 Nc3+ Kf4 Nd6 Bc2 Qd5 b1R N6f5 Ra7 Qb5 Ba8+ Qb7 Kg4 Nb3 Kh3 Ne2 Kg2 Bb2 Kh1 Bd4 Q1g4 Bg1 Qc4+ Bc5 Qg8 Bf2 Rf7 Nbc1 Ba4 Nb3 Be8 Kc8 Rf8 Bc2 d1Q Nfd2 Rf7 Ne4 Qd2 Bd1 Qf4 Ned2 Qd6 Nfd4 Rf8 Ne6 Bb5+ Nd8 Ne8 Ne6 Be5 Rf7 Bh2 Be5 Bc4 Rg7 Rf5 Rf7 Ra1 Ng7 Ra4 Qc6 Rb7 a7 Ba6 Qd7 Rb6+ Qb7 Nf6+ Rf8 Nd7 Na5 Nc6 Nc1 Rb1 Nab3 R3f4 Bg4 Rf3 Ne2 Ncb4 Na5 Q8h7 Rf7 Nf6 Nab3 Qg8+
1rRR1K2/BR1Pn3/q2b2k1/4Q2q/r4pqq/q1bN4/bB2q3/1R1n1bB1 w - - 0 1 legal: proof: c4 a5 g4 d5 f4 dxc4 b4 axb4 e4 h5 f5 hxg4 e5 e6 Bd3 Ra6 f6 Ra8 Bf5 Kd7 Bd3 Rh7 Nc3 Rh5 Na4 Rh8 Bf5 exf5 e6+ Kd6 e7 Kd7 Nc5+ Ke8 Ne6 fxe6 Qf3 Kd7 Qe2 Qe8 Qd1 Qd8 Ke2 Ke8 Ke3 Kf7 Kf4 b5 Kg5 c5 e8R g3 d4 g2 h4 e5 a4 c3 a5 f4 h5 c2 h6 b3 d5 c4 h7 b2 d6 b1Q d7 e4 a6 c3 a7 e3 Qd3 e2 Be3 e1B Rh2 c1Q Bd4 b4 Qb5 b3 Rh1 c2 Bb6 b2 Qf1 Qd2 Nf3 g1Q+ Qg2 c1Q Ra2 Nc6 Re3 Nge7 Rh6 Qh2 Bc7 Nd5 Qg4 Qbd3 Re8 b1B Qf5 Qca3 Qe5 Bd6 Bb6 Qd2e2 Bg1 Ne3 Ra1 Bc3 Ne1 Qda6 Nd3 Ba2 Rb1 Ne7 Rh3 g6 Kh6 g5 Rh5 Rb8 a8R g4 Rg8 Qda5 Rd8 g3 Rb7 Rg8 h8B g2 Kh7 Qg3 Rh1 Nd1 Ba7 g1Q Kh6 Q1f2 Rf1 Ne3 Rfb1 Qgg4 Kh7 Rg5 Bg7 Q5b5 Kh8 Kg6 f7 Qd5 f8B Nd1 Bf6 Rf5 B8g7 Qdf3 Bh4 Qfe1 Bhf2 Rg5 Bg1 Rf5 Qd4 Ra5 Qe5 Ra4 Bf6 Nd5 Kg8 Ne7+ Kf8 Qeh4 Qa5 Qd5 Bfd4 Qdh5 Qe5 Ba5 Bb2 Bc3 Rb6 Bb7 Rb3 Bg2 Rb5 Rb6 Rac8 Rb8 Rb7 Bf1
3k4/1n2bPq1/4R3/np1b1rN1/QK2n1q1/1NN2q2/NBr4q/rnB3Br w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 d5 c4 dxc4 a4 f5 Ra3 fxe4 f5 Qd7 Rh3 Qd8 Rf3 h6 Rf4 gxf4 g5 h5 Bh3 Qd5 Bg4 hxg4 Qb3 Qd3 Qd1 Qd8 h4 b5 d4 c5 Kd2 e5 a5 e3+ Kc2 b3+ Kc3 b2 g6 f3 h5 f2 f6 f1R g7 e4 h6 e2 a6 e1Q+ Qd2 g3 a7 e3 h7 e2 d5 g2 d6 Qf2 Qd3 e1N Na3 Be6 Qf3 Qe7 d7+ Kd8 Rh5 Bd5 Qe2 Nc6 Qe4 Nd3 Ne2 g1Q Nc2 Qf3 Ned4 Qh2 Re5 Na5 Nb3 Qg4 Qd4 Rf5 Re6 Qf7 Qf4 Be7 Nb4 Qfh5 f7 Nf6 g8N Qf3 Qh6 Qhg4 Na2 Rc8 a8N Rc6 Qd2 b1N+ Kc2 c3 Nb6 c4 Na4 Ne4 Nf6 Ndc5 Qg2 Nd6 Ne4 Ndb7 Ng5 Ne4 Qf2 Qe5 Qd4 Qg7 Be3 Rc8 Bg1 Rc7 Kc1 c2 Kb2 c1R N4c3 Nbd2 Qa7 Ra1 Qa6 Rc5 Ka3 Nb1+ Kb4 Qg8 Ne2 c3 Qa7 c2 Nec3 c1Q Qa8+ Kc7 d8B+ Kd7 Bc7 Qg7 Bf4 Qc2 Bc1 Qh2 Qa6 Rhc8 h8B Kd8 Qa7 R8c6 Re5 Rh6 Re6 Qhe5 Qa6 Rh1 Qa7 Qh2 Qa6 Nc4 Qa4 Nca5 Nd1 Qgh6 Bhb2 Qg7 Ndc3 Bf6 Ne2 Rc2 Nec3 Be7+
b1n1r3/1q3QBK/2b2N1N/2r1b3/4n1n1/2B1BP2/pNN1kbp1/rRq4b w - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 g4 Bb5 g3 Nb1 fxe6 Bd3 e5 Bf1 e4 b4 h5 f3 Nf6 Kd2 Rh7 Bc4 Rg7 Be6 Ng8 Bg4 Bb7 Ra3 Bc8 Re3 Rh7 Re2 Rh6 Rf2 gxf2 Be6 Na6 g4 Nb8 g5 Rh8 Bg4 hxg4 c4 Kf7 h4 Ke6 c5 Kf5 b5 Kf4 h5 f1B b6 e5 c6 a5 b7 d5 g6 a3 g7 a4 h6 e3+ Kc2 g3 c7 d3+ Kc3 d2 h7 d4+ Kc2 e2 Kd3 e1B+ Qe2 a2 Rh5 a1R Rh6 a3 Bb2 d1B Rh3 a2 Nc3 e4+ Kc4 e3 Kd3 Ra5 Ba3 Qd5 Rh1 Nf6 g8N Bg7 Bf8 Bf2 Rh6 Bg2 Ne4 Ba4 Rh1 Nbd7 b8B Qb7 Ba7 Ng4 Nh6 Nb6 Nf6 Bc6 Qb2 e2 Qb3 e1Q Qf7 Rg8 h8B Qc1 Bb4 Rc5 Bc3 B8d7 c8N Re8 Nd6 Nc8 Nc4 Be6 Nb2 Bed5 Rh2 Bh1 Ne2+ Kg5 Rg2 Kh4 Rg1 g2 Nh5 Bf6 Bg7 Be5 Nf6 Kh3 Nf4+ Kg3 Ne6 Qd7 Rd1 Ba8 Re1 Qb7 Rg1 Bc6 Bb6 Rd5 Ke4 d3 Kf5 d2 Kg6 d1N Kh7 Rc5 Nd4 Kf4 Ba7 Ke3 Nc2+ Ke2 Rf1 Be3 Bb6 Ndf2 Ba7 Ne4 Rd1 Qd2 Rb1 Qc1 Bb6 Bf2 Ba7 Rb5 Be3 Rc5
3R1RR1/2kNr3/4n3/1b3KBb/1NNn3r/1Pp1q1bn/3p2Nr/3qQnn1 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 h5 bxa4 h6 gxh6 Nf3 h5 Ng1 h4 d4 c6 d5 cxd5 c4 Bh6 e3 Bg7 c5 Bf8 Bc4 dxc4 Ke2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 g4 f5 b3 h3 g5 c3 g6 h2 g7 a3 e4 f3 Qd4 a4 Qd1 f2 Qd2 f1B Qg5 h4 Qg3 d4 Qe3 d3 Qg3 h3 Ra2 d2 Kf4 Qb6 e5 Ne7 g8N Nd5+ Kg5 f4 Qe3 f3 Bb2 f2 Kf5 Bb5 Ne2 f1N Qd3 Ra7 Ne7 Na6 Qg3 Nf4 Ke4 Rh4 Nd5 Nc7 Rg1 h1N Rg2 h2 Qe1 Bd6 e6+ Kd8 Ra1 a2 c6 Bd7 Rg1 Be8 Rg8 Nf2+ Kf5 h1R Na3 R1h2 Nc4 Qe3 Ba3 N2h3 e7+ Kc8 Bc5 a3 Nb4 Ng1 Bd4 Nce6 c7 Nfh3 Bf6 Bf4 Bg5 Bg3 Nf4 Kb7 c8N Bh5 e8R Kb8 Nfd5 Re7 Nf4 Kb7 Ref8 Kc7 Rb1 a1N Rb2 a2 Ng2 Nef4 N8b6 Nc2 Nd7 a1Q Ra2 Ne6 Raa8 Qd1 Rad8 Ncd4+
2r2k2/2B3b1/1r3P1B/Qbq3R1/1Bp1q3/rq1n1pn1/1r1KBN2/n1R1Rr2 w - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 h5 b4 hxg4 e4 f5 Na3 fxe4 Nb5 a5 Nd4 axb4 Ndf3 exf3 d4 c5 a4 e5 h4 g5 h5 b5 h6 e4 h7 b3 f5 c3 d5 b2 d6 b1R a5 b4 a6 c4 f6 e3 a7 c2 Be2 b3 Qd2 b2 Ra2 g3 Qb4 g4 Rh4 g2 Ra1 g3 Qd2 Bg7 d7+ Kf8 Qd1 Nc6 Rh1 Qb6 d8B Nh6 Ra3 Bd7 Rh2 Nd4 Rd3 Qb3 Bd2 c1N Rh1 Nhf5 Bc7 Bb5 Nh3 g1R+ Bf1 e2 Re3 g2 Nf2 Ng3 Re7 Rc8 Bb4 Nd3+ Kd2 Nc2 a8R Na1 Ra5 e1R Be2 Rgf1 Qc1 g1Q Qc3 Rb8 Qe5 Rb6 Qh5 Rg8 h8B Rec1 Qd5 Rc3 Qh5 Qa2 Qd5 Ra3 Qe5 Qb3 Qc3 Ba4 Rg5 Bb5 Qe5 Bc6 Qa5 Bb5 Ne4 Qc5 Nf2 Rg1 Re6 Rbf1 Ree5 b1Q Re4 Rg2 Re3 Nf4 Rc3 Qe4 Rc1 Nd3 Re1 Kf7 Rg1 Rc8 Rh1 Bf8 Bg7 Kg8 Bh6+ Bg7 Rc1 Kf8 Rc2 Rb1 Re1 Rg1 Rc3 Rf1 Rcc1 Rb2+
1RR3bb/1b1QK1rp/kb3nB1/2B1n3/1B2q1Np/P1r3rq/1b2R1n1/6R1 w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 a5 b4 axb4 d5 g5 a3 gxh4 d6 b3 Nc3 cxd6 Bf4 d5 Na2 bxa2 Bc1 d4 Ke2 b5 g4 d5 c4 Kd7 f4 Kc7 c5 Kb7 c6+ Ka6 g5 e5 f5 d3+ Ke3 d2 c7 d4+ Kf2 e3+ Kf3 e4+ Kf4 e2 Ke5 e1N f6 d3 g6 b4 g7 b3 f7 b2 Nh3 b1Q Ng1 e3 Qb3 d1R Bh3 e2 Bd7 d2 Ke6 Bc5 f8B Ra7 Rh2 Bb6 Bc5 Nc6 Kd6 Ng2 Nf3 e1B Bd4 Nf6 g8R Bb7 c8R Ne5 Ng1 Qe4 Rf8 Rg8 Qh3 Rg3 Nf3 Bf2 Bc5 Bd4 Rb8 Qc8 Bf5 Bb2 Ke7 Rg1 Rb1 a1B Bg6 d1B Qd7 Bb3 Bd2 Bf7 Bdb4 Rc1 Rd8 Rc3 Rg1 Qcc6 Rdc8 Qe6+ Kf8 Qh3 Ke7 Ne3 Re2 Ng2 Nh2 Nd3+ Kd6 Nh5 Qc6 Be6 Qc7 Rc4 Qf7 Bh8 Rb2 Ba8 Nf3 Nf6 Rf8 Ne5 Rfc8 Rc3 Re2 Bb2 Nh2 Bc4 Qe8 Rg7 Qd7 Bb7 Ng4 Bf7 Ke7 Bg8+
k1B1q1rR/3Qb1N1/1K2b1pB/1Pn5/1qq1r3/1n1b1n2/N3qpB1/1r3N1B w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 hxg4 f6 g3 Bb2 g2 Ra3 exf6 Bc1 f5 Rd3 f4 Rg3 fxg3 Kd2 a5 Kd3 f5 Kc4 d5+ Kb5 Kd7 c4 Kc7 e4 Kb7 h4 g6 c5 a3 h5 a2 e5 a1N e6 d3 h6 d4 e7 a4 e8B d2 h7 f4 Qe1 d1B Bb2 a3 Qe5 a2 Bd3 f3 Qf5 f2 Ba3 Be2 Bc1 Nb3 Bf4 a1Q Qg4 Qa2 Bg5 Be7 Qe6 Na6 Rh3 Nh6 Nf3 g1R Nfd2 g2 Nf1 Nf7 Bh6 Rg8 h8N Ng5 Nc3 Nf3 c6+ Ka7 c7 Nac5 Qf5 Be6 Bc6 Qe8 c8B Rh1 Rh2 g1Q Nf7 Qg4 Ng5 Qe4 Bc4 d3 Bd5 Qh4 Rh3 d2+ Qd3 Qc2 Na2 d1Q Rh2 Kb8 Kb6 Qcc4 b5 Ra4 Be4 Qd2 Qd7 Bd3 B6b7 Qe2 Rh3 Nh2 Bg2 Nf3 Rh2 Qb4 Ba8 Qhc4 Bd5 Bf7 Ne6 Rg1 Ng7 Be6 Ng3 Rc1 Nf1 Rb1 Bh1 Nfd4 Bdg2 Nf3 Bd2 Ka8 Rh8 Ra5 Bh6 Ra7 Qd8 Rd7 Qc7 Rd4 Qd7 Re4
1Nbk4/p1bq2p1/6n1/1rBb1B2/R2PbR2/nQ4n1/nR2b1B1/2r2BKr w - - 0 1 legal: proof: b4 b5 f4 c5 a4 cxb4 c4 bxa4 g4 h5 f5 hxg4 f6 d5 c5 exf6 Na3 f5 Nc4 dxc4 Bg2 f4 Bh3 Rh5 Bf1 Rh8 Kf2 f5 h4 c3 d4 g3+ Kg2 a3 e4 a2 e5 c2 h5 f3+ Kh3 g2 Kh2 b3 e6 f4 h6 b2 e7 b1B c6 f2 c7 f3 h7 Na6 Bg5 c1R Ne2 g1N Be3 Be4 Ng3 Nb4 Qd3 Ne2 Qb3 Rb8 Bf4 Rb5 Nh5 Ng3 Bd6 Qd7 Bc5 Bd5 Bg2 f1B Kg1 Bd3+ Bf1 Bg6 Rh4 Bge4 Rf4 f2+ Kh2 Bcb7 c8B Ba6 Bg2 f1B Kg1 Be2+ Bf1 Rb1 Bb7 Rc1 Ba8 Bc8 Nf6+ Kf7 e8B+ Ke6 Kh2 Ne7 Kg1 Ng6 Bc6 Bd6 Ba8 Qc7 Bd7+ Ke7 Bf5 Kd8 Nd7 Be5 Nb8 Qd7 Bb7 Bc7 Bc6 Rg8 h8R Re8 Rb1 a1N Rh6 Nac2 Rb2 Rh8 Ba8 Na3 Bb7 Nf8 Ra6 Ng6 Ra4 Rh1+ Kf2 Bb1 Na6 Bg8 Nb8 Na2 Bbe4 Bd5 Beg2 Rh2 Kg1 Bbe4 Bh1 Rh7 Bg2 Rh1+
nnb2bbk/8/p5Bn/nrB1N3/2PNb1r1/1R1NK1q1/b2N2Qp/4Bq2 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 f4 b5 h4 bxa4 f5 gxh4 f6 exf6 Ra3 f5 Rah3 f4 Rb3 axb3 Kf2 f5 e4 Kf7 g4 Kg7 b5 h5 g5 d5 e5 h3 b6 f3 e6 d3 g6 d4 b7 a6 c3 f4 e7 h2 Qe1 h4 Na3 b2 Nc2 b1B Nb4 h3 Qe3 d2 Qd3 d1N+ Ke1 f2+ Ke2 f3+ Kd2 Nb2 Be2 f1B Qe4 d3 Ke3 f2 Nf3 d2 Nd3 Na4 Nfe5 Qc7 Qg2 Nb6 Ba3 Rh4 e8N+ Kh8 Nd6 Ba2 Ne4 Nh6 Bh5 Rg4 Bc5 d1Q Rg1 h1B Nd2 Be2 Re1 h2 c4 Bf3 Rf1 Bd5 Re1 Qa1 Rb1 Bg8 Rb3 Qf1 g7+ Kh7 Qh3 Be4 Qg2 Ra7 Bf7 Na8 Be8 Nc6 b8B Rb7 Bba7 Rb5 Bab6 Nb8 Ba5 Bge6 g8N Kh8 Ne7 Bg8 Nf5 Qd6 Nef3 Qg3 Nd4 Qg1 Bg6 f1N+ Ke2 Qh1 Nfe5 Qg1 N2f3 Nd2 Bab4 Qf1+ Ke3 Nb1 Be1 Nd2 Rb2 Nb3 Rb1 Qh4 Nd2 Na5 Rb3 Qg3+
bq4R1/R1r3nK/B4RB1/1bkq2N1/2rb2P1/1r4rn/pBn3pQ/n1B5 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxh4 g4 e5 a5 exf4 Nc3 b6 Ne4 bxa5 Ng3 fxg3 Bf4 a4 Bh6 Qc7 Bc1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 h5 Kf5 a5 e4 h3 c4 d3 b4 a3 b5 d2 b6 a2 b7 a4 e5+ Kc5 e6 d5 Bd3 d4 Qf1 d1Q Bg5 g2 Qf2 a3 Qe3 h2 Qe4 h4 Rb1 a1N Bh6 h3 Nf3 a2 Ne1 Bg7 Bd2 Nh6+ Kf4 f5 e7 Rh7 Kg5 f4 Kg6 f3 e8B f2 Rf1 h1N Be3 h2 Bf4 Ra3 Bd2 Nf5 Bc3 Na6 b8B Nb4 Qe6 Bb7 Qe4 Rb3 Rc1 Nbc2 Nf3 Ba8 Bf4 Qb8 Bb2 Bf6 Ng5 Rc7 Be3 Ng7 Kh7 Qf3 Qb7 Qd5 Beg6 Be5 Bf4 Bf6 Be2 d3 Qc8 d2 Qh8 d1R Rb1 Rg3 Bfc1 Bd4 Bed3 Kb6 c5+ Kc6 Ba6 Rdd3 Ne6 Rb3 Ng5 Kd7 c6+ Kd6 Nf3 Kc5 Ng5 Re7 c7 Re4 Re1 f1B Rd1 Bc4 Rf1 Bb5 Rf6 Re7 c8R+ Rc7 Rg8 Nf2 Bd2 Nh3 Rh1 Nf4 Bdc1 Nh3 Re1 h1R Re7 Re1 Ref7 Rc8 Rd7 Re7 Ra7 Rec7 Rf7 Nh5 Qe5 Ng7 Rf6 Kb4 Qf4 Rc4 Qe5 R8c7 Qf4 Kc5 Qe5 Rgf3 Qh2 Rg3
2BBR2r/k2rn2B/2q1r1nB/1qq1bpN1/1N6/P1NQ1b2/1K3pn1/3n3r w - - 0 1 legal: proof: f4 h5 b4 a5 g4 hxg4 d4 axb4 d5 e5 a3 exf4 d6 b3 Ra2 bxa2 Kf2 cxd6 Ke1 d5 Bg2 d4 Bh3 Ra5 Bf1 Ra8 Kd2 a1R e4 g5 c4 d5 Kc2 Kd7 h4 Kc7 c5 f5 c6 Kb6 e5 g3 c7 d3+ Kc3 f3 e6 d4+ Kb3 d2 h5 d3 h6 g4 h7 g2 e7 g3 e8N Qd6 Nh3 g1Q Rh2 g2 Kb2 Ne7 Ng5 Ra7 Kb3 Nd7 Ne6 Bg7 Qe2 d1N Rh4 d2 Nc3 Nf8 Rh2 Qc6 Qe1 Ne3 Kb2 d1N+ Kb3 Nfg6 Rh1 Be5 Qd2 Ra2 Qd8 Re2 Qd3 Qf2 Rh6 g1R Nf6 Ng2 Ng5 Qfc5 Bf4 Bd7 c8B f2 Rh4 Rh1 Nfd5+ Ka5 Be3 b5 Nb4 Kb6 Re4 Be8 Bd2 Rd7 Bf4 Ka7 Bd2 Rg8 h8B Bf7+ Kc2 Bd5 Bf6 Rgh8 Re3 Re1 Be2 Be4 Bh5 Bf3 Bc1 N6h4 Bf7 Nhg6 Bg8 Re2+ Kb3 Ree1 Bh7 Re2 Nc2 b4 Ka2 b3+ Kb1 b2 Nb4 Nd5 Bd8 Nde7 Bd2 Bg3 Re6 Be5 Be3 Nd5 Re8 Nde7 Nh3 Ree1 Bh6 Re3 Ng5 Re4 Kc2 b1Q+ Kd2 Qb3 Kc1 Qbc4 Kb1 Q4b5 Ka2 Bb8 Kb1 Re6 Kc2 Be5 Kb3 Nde3 Kb2 Nd1+
1Kb2r1R/1B1qR3/R1n1n1RB/2p2bpQ/P2B4/6n1/r1qbr1n1/b2k3N w - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Nc3 f3 Nd5 g3 Nf4 axb6 Qb3 b5 Qd1 b4 Ng2 fxg2 h4 Ke7 d4 Kd6 Kd2 Kd5 Ke3 b5 Kf4 f5 h5 c5 h6 g5+ Ke3 b3 a3 b2 h7 b1B Qa4 b4 Qa7 c3 Qa6 b3 Bd2 c2 Qb7+ Kc4 d5 c1B d6 b2 d7 Bg7 Qf3 Kb3 Rh6 Kc2 Qh5 f4+ Ke4 f3 Kd5 f2 Kd6 Ne7 e4 Nd5 e5 Ne3 e6 Rf8 h8B Nc6 Bc3 Bd2 Nh3 g1N e7 g2 e8R Ne2 Rg6 g1R Re7 Nf4 Ba6 f1N Bd4 Rg2 Bb7 Re2 Nf2 Ng3 Nh1 Kd1 Ra2 Bf6 Bg7 Bf5 Bh6 b1Q Ra1 Qe8 Kc7 Neg2 d8R Qf7 Ra2 Qc2 Re8 Ra7 Rd8 Na5 Kb8 Ne6 Ree8 Qd7 Re7 Rf7 Rh8 Rf8 Be3 Ba1 Bd4 Ra6 a4 Rd6 Rb2 Rd5 Rb6 Nc6+ Ka8 Re5 Ra6 Re3 Bf6 Ra3 Bd4 Nb4 Ka7 Ra2 Kb8 Nc6+
1n1N2q1/2b2Nn1/5Bp1/2p1rNKb/r1qbP2B/1r1k4/1Q1b3q/B2BR1r1 w - - 0 1 illegal: No possible last move
r1q1N1Q1/Bb2PR1N/6b1/2p2nq1/bp2kr2/q4n2/1N1bK1Bn/B3q2N w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 e4 Ke7 h4 Ke6 d4 c5 a5 g5 a6 b5 a7 f5 d5+ Ke5 h5 b3 d6 c3 d7 f4 h6 c2 h7 g4 Na3 b2 Rh6 b1B Ne2 g1N Bh3 g2 Kf2 f3 Nf4 b4 Qd2 Ne7 Nh5 Nbc6 Qg5+ Nf5 Qg8 Bb7 Ng3 Ncd4 Bb2 c1Q Rf6 Bh6 Ba1 Bd2 Nh1 Qc8 d8B Bc2 Ba5 Ba4 Nc4+ Kf4 e5 Qa3 e6 Ke4 Qg5 Rg8 h8N Rf8 e7 Nh4 Bd8 Rb8 Rh6 Rf4 a8N Nhf5 Nc7 Ra8 Ng6 Nh4 Kg3 f2+ Kh2 Ndf5 Nb2 Be8 Nf8 f1B Qg7 Bfb5 Qg8 Ba4 Rh7 Bg6 Ne8 Ne2 Rh5 Neg3 Kg1 Nf1 Rh7 Nh2 Rg7 Bc3 Rh7 N4f3+ Kf2 g3+ Ke2 g1Q Rf7 g2 Bb6 Bd2 Ba7 Qb1 Nh7 g1Q Bf1 Qg5 Bg2 Qe1#
2kNR2N/p3P2q/N1K2nr1/2R2r2/1nr3rb/1p1n4/Q1n1R2q/1b1Bq1R1 w - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 h4 g5 f4 gxh4 a5 exf4 Bd2 b6 b5 bxa5 Bb4 axb4 Kf2 f5 Kf3 d5 e4 Kd7 g4 h5 c4 d3 g5 d2 e5 b3 b6 d4 g6 h3 b7 h2 c5 h4 g7 d3 Ra5 h3 Rb5 Ne7 g8R Rh6 Rg4 Qc7 Rh4 Rg6 Rb4 Nd5 Rb6 Be7 Qc2 d1N Rc6 d2 Be2 N1e3 Rb6 d1N Qa2 Nf2 Na3 Nd3 Ra6 Nc2 Rh5 Bh4 c6+ Kd8 e6 Qh7 Nb5 Nd7 b8R N7f6 Nc7 Rg4 Bd1 Rg6 Ke2 f3+ Kd2 f4 Ne2 f2 Rg1 h1R Nd4 f1R Rhg5 Nde3 Kc3 f3 Rc5 Ned5+ Kc4 f2 Kb5 h2 Rab6 Rg4 Na6 Rg6 R6b7 Rg4 Rg7 Rg6 Rg2 Rhg1 Re7 h1Q Rg7 Qh2 c7+ Ke8 e7 Kd7 Ne6 Bb7 Re8 Rc8 Nd8 Ba8 Rg5 Rg4 Re5 Re1 Rf8 f1Q Re8 Re3 Re4 Rf3 Re2 Qe1 Rgg8 Bb7 Rg7 Rf5 Rgg8 Ra8 c8N Rb8 Nd6 Rc8 N6f7 Ba8 Rc3 Rcc4 Nh8 Kc8 Nc7 Rcf4 Rc5 Rc4 Rg7 N5b4 Rgg8 Be4 Rg7 Nbd5 Kc6 Qb4 Rgg8 Qe1 Na6 R4g5 Nc7 Rh6 Na6 N3f4 Rd2 Na3 Nb4 Bb1 Bh5 Nd3 Na6 Nc2 Bd1 Rg3 Rg4 Rg6 Re2 Rg1 Rf4 R1g5 Rf1 Rgg4 Rg1 N5b4+
2k2Br1/2qq2p1/Pq1n2pN/1b3NbN/2RR4/R1nq2rK/b6p/2q1Q1N1 w - - 0 1 illegal: No possible last move, all moves rejected
5K1b/2k1rn2/2rr2R1/Pq4B1/1p1p2R1/1n2bBRn/Q1q1Bp1N/4Rn1b w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 f5 Kd3 b5 c4 g5 a4 d5 h4 Kd7 e4 f4 h5 g4 c5 f3 c6+ Kc7 a5 b3 h6 b2 e5 b1N h7 b4 e6 Ra7 e7 Qd7 e8B Nh6 Rh3 Bb7 Qd2 Nf7 Qc2 Na6 Be2 Nd2 Ba3 Nf1 Qc1 Bg7 Qb2 Nc5+ Kc2 Nb3 Kd3 Rf8 Rc1 Bh8 Qa2 Rg8 Rh6 Rg6 Re1 Rd6 Bc1 Ba8 Bg5 Rb7 Nh3 g1R Nf2 g2 Rg6 g3 Ng4 Rh1 Nh2 g1N Bc1 g2 Bg5 f2 Bf3 Nh3 Be2 g1B Bf3 Bg7 h8R Rb6 Rh4 Bh8 Be2 Ra6 Rg4 Bb7 Nf3 Bh2 Rg3 Rb6 Rg4 Bg3 Nh2 Bf4 Bf3 Be3 Rg3 Kc8 c7 Rbc6 Rg4 Ba8 Be2 Kb7 c8R Rg1 Rb8+ Kc7 Rb5 Rg3 Rc5 Rf3 Rc3 Rf4 Bf3 Re4 Be2 Qf5 Bd7 Qe5 Bc8 Qe8 Bf5 Re7 Be4 Qb8 B4f3 Qb5+ Kc2 d3+ Kb2 d2 Kc2 Qa4 Kd3 Na1 Ra3 d4 Rb3 Red7 Ke4 d1Q Kf5 Re7 Rc3 Nb3 Rd3 Be5 Rc3 Qb5 Rd3 Rd5 Rc3 Qc2+ Rd3 Bd6+ Kf6 Bg3+ Kg7 Be5+ Kg8 Bh8 Kf8 Rdd6 Bh1 Bf4 Rdg3 Be3 Bhf3 Rc3 Be4 Bb7 Bf5 Bf3 Be4 Bh1 B4f3 Rcc6
NR1B1N2/k1r5/1q3Pq1/q1r4p/Rn1N3Q/p2R1r2/p2Kb3/2bnR1br w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 b5 a4 bxa4 d5 g5 c3 gxh4 d6 cxd6 Bc4 d5 Ba2 d4 Bb3 d3 Bc2 dxc2 b4 e5 f4 d5 g4 Kd7 b5 Kc7 b6+ Kb7 g5 a5 g6 h5 c4 d4 f5 e3 f6 e4 c5 d3 g7 a3 Ra2 d2+ Ke2 h3 Bb2 c1B Be5 a4 Nc3 h2 Bd4 Nh6 g8N Na6 Rc2 a2 Qe1 d1Q+ Kf1 a3 Nb1 Nb4 Rd2 Ra5 Ne7 Qg4 Nc3 Qg6 Ke2 Bg4+ Nf3 Nf5 Ncd5 Rh7 c6+ Ka8 c7 Rc5 b7+ Ka7 c8R Qb6 Rf1 h1R Qh4 Rg7 Ke1 e2 b8R Ne3 Nc7 Nd1 Na8 Rh3 Bf2 Rg3 Nd4 Rf3 Rd3 Rh7 Ng8 Rhc7 Ne7 Bfh6 Bg3 Bhe3 Bf4 Bg1 Rh8 Bb2 Kd2 e1R Rh7 Rh3 Rhh8 Be2 Be5 Rg3 Rhe8 Rh3 Rf4 Rh1 Rg4 Rf1 Bg3 Rf3 Bf2 Qh7 Ng6 Qg8 Nf8 Qg6 Bg3 e3+ Ke1 Rc8 Bc7 Bc1 Bd8 R8c7 Rd2 Ba6 Rd3 e2 Re7 Bh6 Rf4 Bc4 Kd2 e1Q+ Kc1 Qe5 Kd2 Qeg5 Re1 Bb5 Rde3 Be2 Rfe4 Rc4 Rf4 Qga5 Rd3 R4c5 Nde6 Nc2+ Kc1 Bg5 Re3 Bh6 Ra4 Bf4 Nd4 Nb4+ Nc2 Bfh2 Kd2 Be5 Rd3 Bb2 Nd4 Bc1+
n1qq4/1R3n1B/1BkP3b/1b3qQb/1n4p1/Bn2RprN/p2r1K2/1R2B3 w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 h5 g4 hxg4 f4 b5 Nc3 bxa4 Nb5 e5 Nd4 exf4 Nb3 axb3 e4 Kd7 h4 f5 d4 c5 d5 a5 h5 g5 d6 a4 e5 g3 h6 f3 e6+ Kc6 h7 f4 e7 f2+ Ke2 b2 e8R b1Q Bb2 c3 Kf3 c4 Qd4 g2 Qe5 c2 Bd4 c1N Re7 a3 Ra7 c3 Rb7 c2 Qa5 a2 Be2 f1B Be5 Na6 Rb8 Nh6 Rh4 Nf7 Rh3 Nd3 Bb2 c1N Rb7 Bh6 Ba3 Nc7 Qe5 Qc2 Rb1 Nb3 Qf5 Rg8 h8B Ra5 Bc3 Rd5 Be1 Na8 Bd1 Qc3 Bc2 Qe5 Qg4 Qf5 Rg3 Be6 Nh3 g1Q Qh4 Qc5 Qg4 Rd4 b5+ Kd5 b6 Kc6 Qh5 Nb4 Kf2 Bb5 Re3 f3 Qg4 Bec4 Qg1 Qfc8 Bh7 Q5f5 Qg3 g4 Qh4 Rh8 Qg5 Rd5 Ra7 Rd3 b7 Rd4 b8B Rd2+ Kg1 Be6 Rb7 Bd7 Bc7 Be8 Re7 Ne5 Re6 Bh5 Bb6 Nf7 Re3 Re8 Rd3 Ree2 Re3 Rh2 Re2 Rg2+ Kf1 Rd3 Re3 Rg3 Kf2 Rd2+
1b1BN2R/1q1bKN2/qp1Q4/1Nb1Rn2/rkrR3P/1n2qRr1/3p1p2/5b2 w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 Ke7 Kd3 Kd6 Kc4 f5 h4 g5 a4 f4 e4 b3 a5 f3 a6 b2 a7 d3 c3 d2 Ra5 g4 Kd4 Qf6+ Re5 Nh6 c4 Nf5+ Kc3 Na6 Qa4 d1B Be3 Be2 Qa3+ Nc5 Kb4 Nb3 Nc3 b1Q Rc5 Bf1 Nh3 g1R Ng5 g2 Rh3 g3 Re5 Kc6+ c5 d5 Bd4 Bd7 Nf7 Bd6 Nb5 Bb8 Be3 d4 Bg5 Qh6 Bd8 d3 Kc4 Qe3 Qb4 b6 Qd2 Qa1 Qb4 Kb7 Kd5 Ka6 c6 d2 Qd6 Ka5 c7 Rg8 c8R Rg4 Rc3 Qa2 Rd3 Qa3 Qc7 Kb4 Qc6 Qa6 Qc7 Bc6+ Ke6 Bd7+ Kf6 Qd4 Qc6 Qd5 Qc7 Qdb7 Rd4+ Bc4 Qc6 Rc1 Qc7 g1Q Qc6 g2 Qd6+ Ka5 Rg3 Qe3 Rh3 g1B Rg3 Ng7 Ke7 Bf1 Rh3 Rc4 Rg3 f2 Rf3 Bh2 Ref5 Rg5 e5 Rg2 e6 Rg3 Re5 Nf5+ Kf8 Rg7 e7 Bf4 e8N Rg3 Qf6 Bd6+ Qe7 Bc5 Qd6 Rc8 a8R Kb4 Bf6 Rc7 Rd8 Rc8 Bg5 Ra8 Rc8 Ra7 Bd8 Qa8 Rb8 Q6b7 Rc8 Ra4 Rb8 Qaa6 Rc8 Ng7 Ke7 Nf5+ Kf6 Rg8 Re6 Qee4 Qb8 Qaa8 Rcc6 Bc7 Re5 Qe3 Rce6 Nd6 Ke7 Rg3 Rh6 Qba6 Rh8 Q8b7 Qc8 Bb8 Qc6 Rg7 Kf8 Nf5+ Qd6 Nh6 Ke7 Rg8 Ree4 Rg3 Re5 Nf5+
2r1b2R/QKB2q1n/p5PN/2rRB1R1/3n1B2/q3p3/rp2kb1n/2B2qq1 w - - 0 1 legal: proof: e4 d5 b4 g5 h4 gxh4 c4 dxc4 b5 f5 b6 fxe4 Qe2 a6 Qf3 Bg7 Qd1 Bf8 a4 Bd7 a5 Ra7 Bd3 Be6 Bc2 Ra8 Ba4+ Bd7 Bb5 axb5 Qe2 Bf5 Qd1 Bc8 a6 Be6 a7 Nd7 Na3 Bh3 Nc2 Nb8 Nb4 Bc8 Na6 bxa6 Ke2 Kd7 Ke3 Ke6 g4 Kd5 f4 c5 d4 e5 b7 h5 g5 b4 g6 h3 f5 b3 f6 h2 f7 h4 Ne2 c3 Ng3 Kc4 d5 c2 d6 h3 d7 Qc7 d8B Nf6 Qd6 Bd7 Qd2 Nc6 b8B Nh7 Qd1 Nd4 Qh5 Be8 Rd1 h1Q Re1 h2 Qd1 Qg1+ Kd2 h1Q Bb2 c1R Rf1 e3+ Ke1 e4 Ra5 e2 Kd2 e1N Rf5 Ra1 Rg5 Ra2 Nf5 Qb7 Bd6 Rc8 a8R Rc7 Bf4 Nef3+ Kc1 e3 Nh6 Bd6 f8B Nh2 Bg7 Rc6 Rc8 Qf7 Bge5 Qf3 Rb8 Qff1 Bc7 Be7 Kb1 Rf8 Qc1+ Kd3 Ra8 c4 Rd5 c3 Qd1+ Kc4 Bc1 Rc5 Qg4 Kd3 Qd7 b2 Rd8 Ke2 Rc8 Ne6 Kc2 Bd6 Kb3 c2 Kb4 Nd4 Bd8 Be7 Qa7 Rh8 Bdc7 Bf6 Bd2 c1Q Rcd8 Qa1 Bc1 Ba4 Rb8 Rc8 Ra8 Rc2 Ka5 Rc5+ Kb6 Be8 Kb7 Bd8 Rg3 Bh4 Rg5 Bf2 Bg7 Ra3 Bge5 Bb5 Rd6 Rh8 Rad8 Ba4 R8d7 Rc8 Rd8 Bd7 Rf8 Be8 Rd5 Qa2 Rh8 Qb3+ Qb6 Qd3 Qa7 Ra2 Rf5 Qc3 Rg5 Qa3
Nb1B2nn/bpp3b1/3B1Nkp/6N1/1P1b1Rrr/4r3/BQ1K4/2qB1b1b w - - 0 1 legal: proof: f4 e5 e4 exf4 h4 g5 c4 gxh4 Qg4 d5 Qd1 dxc4 Na3 Na6 Rh3 Nb4 Re3 Nxa2 b4 fxe3 Nf3 Qd5 Bd3 Bd6 Qa4+ Kd8 Kd1 Bh2 Bb2 Qd4 Ke2 Nh6 Rh1 Bd6 Ke1 Qd5 Bf1 Ng8 Qd1 Ke8 Ng1 Bf8 Bc1 Qd8 d4 a5 g4 f5 e5 Kf7 e6+ Kg6 g5 e2 d5 c3 e7 a4 e8N c2 d6 f4 d7 h3 Be3 c1B Nc4 f3 Bd2 h2 Ncd6 a3 Bc3 Be3 Bd4 Bg7 Ba1 Ba7 Qb3 f2+ Kd2 e1B+ Ke2 Bb8 Nf7 Nc1+ Kd1 a2 Be5 a1B Ne2 Nd3 Qb2 Nf4 Nf6 Ra3 Bd6 Re3 Nc3 h6 Bg2 f1B Bf3 Bf2 Na4 Qe8 d8B Be6 Rg1 h1R Rg4 Qc6 Kd2 Bd5 Nb6 Rh4 Bd1 Bh1 Na8 Qc4 Qc1 Bd4 Qb2 Nd3 Rf4 Ne5 Re4 Kf5 Rg4 Ng6 Re4 Rh7 Rg4 Nh8 g6 Rg3 Re4 Rgg4 Ng5 Bda7 Nd5 Bfd4 Nf6 Bf8 g7 Kg6 Rf4 Qc1+ Ke1 Ne7 g8B Bg7 Be6 Ng8 Ba2 Bf8 Nf3 Rd7 Ng5 Bg7 Bb3 Re7+ Be6 Qa1 Kd2 Re8 Bd5 Re3 Ba2 Qc1+
5nrb/1r2pNRp/2k1Nbb1/p4Kn1/1qr2b2/1RQ5/Nn1R1r1P/B3N3 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 cxb4 a4 bxa4 g5 d5 g6 dxe4 Bd3 fxg6 Ba6 g5 Bc4 g4 Bb3 axb3 Ke2 Kd7 Ke3 a5 Kf4 g5+ Kf5 e3 d4 e2 f4 e1N c4 g3 c5 g4 d5 g2 d6 g3 Bd2 b2 Nh3 g1B Kg4 b3 f5 g2 f6 Bh6 f7 Qb6 f8R Nf6+ Kf5 Qb4 Ke5 Rg8 Rd8+ Kc6 d7 Bd4+ Kf5 g1B Nf4 Ne4 Qc1 Ng5 Qc3 Bh8 Nd3 Bgd4 Ra3 Bdf6 Rg1 Ra7 Be3 Rc7 Bd4 Ba6 Rg3 Bc4 Rg1 Bf7 Be5 Bh5 Bd4 Nf7 Rg7 Bf4 Be5 Ng5 Bd4 Nef3 Ne1 Nd2 Be5 Nc4 Bd4 Kd5 c6 Rb7 c7 Kc6 c8N Rc7 Nd2 b1R Nd6 Rb2 N2e4 Rf2 Nf7 b2 Rb3 b1R Ng3 Rd1 Ne2 Rb7 Nc1 Rdd2 Na2 Rc2 Qg3 Rc1 Ba1 Nb2 Qh3 Rc4 Qc3 Nf3 Re8 Ng5 d8N+ Kd7 Ne6 Kc6 Rf8 Nd7 Rd8 Nf8 Rd2 Bg6+
7N/pNbq1Rpb/pk3B1n/1q3P1r/1N4Qq/1NB4B/2pn1Kb1/nr6 w - - 0 1 legal: proof: b4 h5 g4 hxg4 e4 f5 c4 fxe4 a4 d5 a5 dxc4 a6 bxa6 Ra3 Bd7 Rh3 Bc8 Rb3 cxb3 d4 Kd7 f4 Kc6 h4 e5 d5+ Kb6 d6 c5 d7 g3 b5 b2 h5 e3 h6 e2 h7 g2 Qd3 c4 Qg6+ Nc6 Rh3 c3 Nd2 b1B Rg3 e4 Qg4 Nd4 Qh5 Nb3 Qd5 Na1 Qe6+ Bd6 Nb3 Rb8 Qg4 Bc7 Bd2 Bb7 Kf2 e1N Nh3 Nh6 Rf3 Bd3 Ng5 c2 Bc3 Qc8 d8B Qd7 Ne6 e3+ Kg3 e2 Kf2 Ba8 Bdf6 Bde4 Nec5 Rb7 Kg3 g1Q+ Bg2 Rbb8 Nb7 Bg6 Rf2 Nf3 Rf1 Qe3 Bh3 e1Q+ Kg2 Nd2 Rf3 Rhf8 h8N Qb1 Rf1 Qe5 Kf2 Qed5 f5 Bh7 Re1 Qc1 Re7 Qc4 Rf7 Rfc8 N7c5 Bg2 Nb7 Re8 Bb2 Re1 Bbc3 Rh1 Nd8 Nb1 Na5 Kc5 b6 Be4 b7 Qg5 Bf1 Rh5 Bg2 Nd2 Bh3 Rc8 b8N Bg2 Nbc6 Rb8 Nb4 Qcd3 Nbc6 Rb1 Nb3+ Kb6 Nb7 Qb5 Nb4 Qh4+
2kB1Q1N/Rp2q1b1/1n1nR3/2n3p1/1K5p/3qn3/1NqRrPp1/Nb2Rr2 w - - 0 1 legal: proof: d4 e5 g4 exd4 b4 a5 h4 axb4 h5 f5 e3 fxg4 h6 c5 Qd3 c4 Qd2 Qc7 Bd3 cxd3 Qd1 Qh2 Qe2 Qxh6 Qd1 Qh2 Kd2 Kd8 c4 h5 a4 d5 c5 g5 a5 b3 e4 g3 a6 h4 a7 b2 e5 g2 e6 Nf6 c6 Bg7 Qf1 Re8 Qe1 Nbd7 Ra2 Qe5 Nf3 Nc5 Nc3 b1Q Bb2 Nfd7 Nd1 Nb6 e7+ Kc7 Ba1 Bf5 Nb2 Kc8 c7 Qf6 Qe4 Bg6 Qf4 Qc2+ Ke1 Qd6 Qf8 d2+ Ke2 d1N+ Nd2 Ne3 Re1 Rb8 a8R Nf5 R8a6 Ra8 Ra7 Qd3+ Kd1 Qd7 Kc1 Nd6 Nb3 Qe6 Nd1 Qee3+ Kb2 Qc2+ Ka3 d3 Bc3 d4 Na1 d2 Kb4 d3 Nb2 d1Q Be5 d2 Bf6 Qed3 Re6 Qdc1 Re1 d1N Re6 Rd8 e8R Rb8 Re1 Ne3 Re6 Re8 Bd8 Ra8 Na4 Qce2 Rd2 Qcc2 Nb2 Bf7 Re7 Ba2 Re6 Bb1 Rg1 Kd7 c8N Qe1 Ne7 Qee2 Ng6 Kc8 Ra2 Ra3 Nh8 Rc3 Ra5 Ra3 Nb3 Ra1 Re1 Nec4 Re7 Ba2 Ra7 Qee3 Ree2 Rf1 Re1 Bb1 Na1 Qe6 Rf7 Qd7 Rf6 Re2 Rg6 Ne3 Re6 Qe7
1Nr1B3/kbpRp1r1/1R1Pp1Qr/1R1nBB2/B1q1p3/3b2pn/8/b2K1n2 w - - 0 1 illegal: No proof kernel
3b4/pqr2NQ1/1qb4r/3pB1N1/4NPp1/1BB1R1rp/q3p2N/1n2K1kn w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 b5 e5 bxa4 e6 fxe6 Ne2 e5 Ng1 e4 h4 g6 h5 gxh5 g3 Ba6 g4 Bc8 b4 Nf6 g5 Ng8 Ra3 Bb7 Rg3 Bc8 Rg4 hxg4 c4 Kf7 f4 Ke6 g6 Kf5 c5 e5 b5 d5 c6 h5 g7 a3 b6 a2 b7 a1Q c7 h4 Qb3 d3 Ne2 e3 Qa2 Ke4 Nbc3+ Kf3 Ne4 d2+ Kd1 h3 Qc4 Rh6 Qb4 Qa2 N4g3 Kf2 Qe7 e4 Qe8 Nf6 g8N Nbd7 b8B Ne5 Ba3 Bb7 c8N Nh5 Qa4 Be7 Rg1 Nf3 Be5 Bc6 Nd4 Qb6 Ne6 Bd8 Nd6 Rc8 Qd4 Rc7 Bc4 Qb7 Nf1 Ng3 Qa1 Nh1 Nf7 Qb6 Bab2 e2+ Kc2 e1R Nh2 e3 Nf6 e2 Rg3 Qb7 Bb3 Rg1 Neg5 d1Q+ Kc3 Nd2 Re3 Rg2 Nfe4+ Kg1 Kd3 Rg3 Bbc3 Qf1 Qb2 Nb1 Kc2 Na3+ Kd2 Qg2 Ke1 Nb1 Qa3 Qf3 Qf8 Qg2 Nf6 Qe4 Qg7 Qd4 Nfe4 Qdb6
1B1B2r1/2KNBb1p/1NRn4/3q4/pqP1r1n1/NBbb2k1/1pp3pb/6Q1 w - - 0 1 illegal: No proof kernel
4BnQ1/kn2p2N/2p1Q2K/bbPqr3/1q5R/1b3Q1r/3pQ2p/BR6 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bh6 b4 Bxd2+ Ke2 a5 g3 hxg3 f3 axb4 Nc3 Ra4 Ne4 Ra8 Nf2 gxf2 c4 d5 f4 Kd7 Kf3 h5 b6 Kc6 b7 Kb6 f6 c6 f7 d4 f8Q b3 f5 d3 f6 h4 f7 h3 Be2 f1B Qh6 b2 f8Q b1Q Qe6 Nf6 Bb2 Ne4 Kg4 Nc5 Qf3 Nbd7 b8Q+ Nb7 Bg7 Qb2 Rb1 Qb4 Ba1 Nf8 Qc2 Bc3 Kg5 d2 Qd1 Ra6 Bd3 Ra8 Qde2 Ra5+ Bf5 Re5 c5+ Ka5 Rh2 Qd5 Rh1 Bd7 Qe8 Rh4 Q8g6 Be8 Qgg8 Bh5 Kh6 Bf7+ Kg7 Rh5 Bg6 Rh6 Qe1 Ka6 Qee2+ Ka7 Rh2 Rh4 Rh1 Rhe4 Kh6 Re3 Bh5 Bg6 Rh2 Bc2 Be8 Bd1 Qfg4 Bc2 Nf3 Bb3 Ng5 Rg3 Qef3 Bb5 Qe2 Rd3 Qgf3 Rde3 Nh7 Rd3 Rg2 h2 Rg4 Rde3 Rh4 Rd3 Qh1 Rh3 Qhf1 Qbc4 Qfg2 Ba5 Qgf3 Qb4
q1r2Rn1/b3n2Q/5n2/knrB1N2/nbq3QR/1Q2bNrP/5Q2/1n2K3 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 h5 Bb2 exf6 Ba3 f5 Bc1 f4 g4 hxg4 a4 b6 Ba3 b3 Bb4 Ba6 Ba5 Bb5 axb5 bxa5 e4 f5 c4 d5 c5 Kd7 c6+ Kc7 h3 Kb6 e5 g5 e6 b2 c7 f3 c8Q f2+ Ke2 f4 e7 f3+ Kd2 d3 e8Q a4 Qdc1 a3 Qd1 g3 Qc3 g2 Ra2 d4 Qdc1 g4 Qc5+ Ka5 Qce1 g3 Qg5 Bb4+ Nc3 b1N+ Kd1 d2 Q8e6 Nc6 Q1e5 Rc8 Qge3 Nce7 b6+ Rc5 b7 Qa8 Bb5 f1Q+ Qe1 f2 b8Q Qc4 Ne4 f1N Q5d5 Nh2 Bc6 Ng4 Qdd6 N4f6 Ra1 a2 Ne2 g1B Qdd5 g2 Qb7 Be3 Nd6 g1R Qg4 Rg3 Qbd7 Nh6 Rh2 Rc8 Nf5 Nhg8 Qf7 Na3 Rc1 a1B Qf2 Nb5 Ng1 Bb2 Nf3 B2c3 Kc2 d1N Bd5 Nb2 Ra1+ Na4 Kd1 d3 Qb7 d2 Qh7 Na3 Rh1 Bb2 Rf1 Nb5 Rb1 Bbd4 Rc1 Qd3 Rc4 Qe4 Ke2 d1N Qb8 Ndc3+ Ke1 R5c7 Qb7 Ba7 Qb8 Rc5 Rd4 Ba3 Rc4 Nb1 Rd4 Nd6 Qb3 Bb4+ Qd2 Qd3 Qgh4 Nfe8 Ng7 Ka6 Ng1 Nb2 Rf8 Qc3 Nf3 Ka5 Nf5 Nef6 Q4h5 Nb5 Rh4 Qc4 Qg4 N5c3 Qe2 Nba4 Qf2 Nb5+
1Q4n1/Pn1NR3/2nQ3n/2B5/3bbQ2/r5r1/Npbbn1BK/krnQ4 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nd2 exf6 Nb1 f5 Qd2 f4 Qd3 Qe7 Qd1 Qd8 h4 gxh4 a4 b5 c4 Qg5 Ra3 bxa3 Kf2 b4 Ke1 Qb5 cxb5 Bd6 Nd2 Bc5 Nb1 Bf8 Kf2 Ke7 g4 Kd6 Kg2 Kc5 e4 f5 a5 d5 b6 h5 e5 f3+ Kh3 f4 e6 d3 a6 Kc4 b7 f2 e7 f3 e8Q b3 Qde2 a2 Bf4 a1B Q2e5 d4 Q8e7 Nc6 b8Q Bb7 g5 Bh6 Bg2 f1R g6 d2 g7 d1N Nd2+ Kc3 Qbd6 Kb2 Qf5 d3 Qee4 f2 Bh2 Ne3 Qdf8 Nc4 Qb8 Rb1 Qa7 f1N Qg5 Nfe3 Qe8 Nd6 Qb5 Ng4 Ndf3 d2 Qg6 d1B Qh7 Bd2 Qf2 Bc2 Qa4 N4h6 Bf4 Ra7 Kh2 h3 Bf1 h4 Qe1 Ba8 Qe2 Nb7 Qhd3 Rh7 Qac4 Ka2 Qe5 Bd4 Qd6 Ka1 Ne2 b2 Bg2 Rh8 Re1 Rh7 Kh1 h2 Nc3 Rh8 Be3 Rh7 Bh3 Rh8 Kg2 h1N Na2 Ng3 Ne5 Ne2 Kh2 Nc1 Bg2 h3 Nd7 Rh7 Bg1 Rh8 Re7 Rh7 Kg3 h2 Qf3 h1N+ Kh2 Ng3 Qd1 Rh8 Qcf1 Nge2 Qff4 Nf6 g8Q Rh7 Qf5 Rg7 Qff4 Rg3 Qgb8 Nfg8 Bf2 Bg7 Bb6 Bd4 Bc5 Ne5 Qf3 Nd8 Re6 Bae4 Re7 Nec6 Qf2 Rb7 a7 Rbb3 Qf7 Ra3 Qff4 Nb7
1b2Nq2/r2qBR1Q/2pN2b1/5r2/1QN2b1r/p2r1P1K/1b3R1N/2nk2q1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 e5 g5 e6 fxe6 Qe2 e5 Qd1 e4 b4 gxh4 Be2 Nc6 Bd3 Na5 Bc2 a6 Bb3 axb3 Qg4 Nc6 Qd1 a5 Ra2 a4 Ra1 Na5 bxa5 Qd3 Ne2 Qd4 Ng1 Qd8 Kf1 Kd7 d4 Kd6 g4 Kd5 Kg2 h5 a6 e5 g5 c6 f3 b2 g6 e3 g7 e4 a7 a3 Qc2 h3+ Kg3 h2 Qf2 c3 Qf1 c2 Qd1 Kc4 d5 Kb3 d6 e2 d7 e1Q+ Kh3 e3 Qd2 e2 Kg2 h4 Qd6 Nh6 g8Q+ Nf7 Kh3 Qd2 Kg2 e1B+ Ne2 h3+ Kf1 Bg7 Qe7 Qf8 d8N Rh4 Nec3 Bg3 Ne6 Rg4 Nd8 Bb8 Rg1 h1R Ne6 h2 Ne4 Ne5 Ra2 Qd7 Nd6 Nd3 Bg5 c1B Nc7+ Kc2 Nce8 Bf4 Qh7 Kd1 Nd2 b1R Qee4 Ba6 Be7 Bb2 Qb4 Nc1+ Kf2+ Bf1 Rg2 Bc4 Nf1 Bd3 Rg3 Ra1 Kg2 Bg6 Kh3 Rg1 Rg2 h1Q+ Nh2 Rg5+ Rg4 Rf5 Rh4 Rg4 Rh6 Bf7 Rf6 Bg6 Rf7 Rb1 Qg8 Qg1 Qh7 Bg7 Rf2 Rb3 Nc4 Rd3 Ned6 Bc7 Rc2 Bb2 Rf2 Rc8 a8N Bb8 Nc7 Re8 Rg7 Rc8 Nce8 Rc7 Rf7 Rb7 Qc3 Ra7 Qb4 Rh4+
rq1R1R2/1KQ1pr2/1PN3Nk/1B1pN2q/bNnr4/7r/7p/qn3Qr1 w - - 0 1 illegal: No possible last move
1NRRnB2/2bp3p/1P6/pN2r3/K1N2r2/n2krq2/1QrbNp2/n4Q2 w - - 0 1 legal: proof: d4 b5 a4 bxa4 h4 g5 b4 gxh4 c4 e5 f4 exf4 e3 c5 b5 Ba6 Bd3 cxd4 b6 Bb5 Bc2 d3 cxb5 dxc2 Kd2 Ke7 Kc3 Ke6 g4 Ke5 e4 a5 g5 f5 g6 h3 b7 f3 g7 h2 b6 f2 Qe2 f1R Ra2 a3 Kb3 Kd4 e5 f4 e6 f3 e7 Na6 e8N Nc7 b8N Nb5 Qe5+ Kd3 Qc5 Bd6 Bf4 c1B Qb4 Bd2 Bh6 Qf6 Ka4 Bc7 Rc2 a2 Qb2 a1N Ne2 Na3 Rg1 h1R Nbc3 Rh5 Nb5 Re5 Ned6 f2 Rg5 Re1 Nc4 Qf3 Rg6 Nf6 g8Q Re3 Bf8 Ne8 Rf6 Rc1 Qg2 Rg8 Qg1 Rg5 Qf1 Rge5 Rc6 Bd8 Rc8 Bc7 Nc6 Rb8 Rd8 Rc8 Nb8 Rb1 Qh3 Rh1 Qf1 Rh4 Rc1 Rf4 Rc2 Bd6 Rc1 B6b4 Ncd6 Rc6 Rc4 Rc7 Re4 Rc3 Rc4 Rc2 Rcc8 Bc5+ Nc4 Bd6 Qb4 Bc7 Qb3+ Bc3 Qb2 Bd2
kn2q1r1/2qQ4/n2n1BQN/1P1r1nQn/bB1b4/2N1RK2/1Qrq3r/5b2 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 b4 g4 Ra3 h6 Rf3 h5 g3 Ne7 Bh3 gxf3 g4 Ng8 g5 Qb6 Bf5 Qd8 Bg4 hxg4 Kf2 f5 h4 d5 c4 Kd7 e4 Kc7 c5 Kb7 e5 a5 e6 a3 h5 g3+ Ke1 a4 h6 g2 Kf2 a2 g6 a1R h7 d3 g7 a3 e7 d4 e8Q a2 Qde2 d2 Q2e6 d1Q Be3 d3 Rh3 d2 Qh5 Nf6 g8Q Bg7 Qd6 Qc7 Qhe8 Nh5 Rh1 Bd4 Qc4 Bd7 Qdf8 Ba4 Na3 Rc1 b5 a1N Nh3 Nc2 Qfe7 Nb4 Qg7 Rc2 Nb1 N4a6 Qgf7 g1N Qeg8 Ne2 Qe7 Nc3 Re1 Ne4+ Kg1 f2+ Kg2 f1N Qb3 Nfg3 Qg6 Nd6 Nc3 f3+ Kf2 f4 c6+ Ka7 Ng5 Ngf5 Nf7 Qc1 Qb2 d1R+ Re2 Qd2 Qeg5 Rg8 h8B Rh1 Nh6 Rh2+ Kf1 f2 Re1 Qc8 c7 Qe8 Bf6 Kb7 Qg1 Ra7 c8Q+ Ka8 Q6g5 Rc7 Qd7 Rc5 Q1g4 Rd5 Re2 Rh1+ Kg2 Rh2+ Kf3 f1Q+ Bf2 Qfc1 Qg3 Qd8 Be1 Qe8 Kg4 f3 Re3 f2 Kf3 f1B Qg6 Qd3 Q3g5 Qdd1+ Ne2 Qd3 Bb4 Qcd2 Nc3 Qc4 Qdh7 Qcc6 Qd7 Qc7
1nRnK3/Pr3n1R/b7/Nk1N2rQ/nB4Nb/1b1n1b1r/n1Q1q3/2n1N3 w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 f5 Kd3 g5 Kc4 d5+ Kb5 Kd7 e4 b3 a4 f4 c4 g4 h4 f3 a5 f2 a6 f1B h5 b2 a7 d3 c5 d4 e5 d2+ Ne2 g1N h6 d3 h7 g2 Ra6 g3 Nd4 Nh6 Rg6 Ne2 Rg7+ Nf7 Qc2 g1R Rh3 d1B Nc3 b1N Rh1 d2 Rh6 g2 Qb3 Qe7 Qc2 Nd8 Ba3 Nc1+ Qd3 Bb3 Bb2 d1N Nd5 Nbc3+ Kb6 N3a2 Qc4 Be2 Rc6 Nf2 Qc2 Bf3 Bc3 Nfd3 Rf7 Bh6 Bb4 Bg5 Kb5 b6 Rg7 Bb7 Rc8 Bh4 Rf7 Rg8 h8Q Rg5 Qh5 Rh1 Rh7 g1N Nf5 Rh3 Nfe3 Na6 Ng2 Rb8 Rc6 Bc8 Ne1 Rb7 Rc7+ Ke6 c6 Nb8 Ne3 Qe8 Nc4 Kd5 Na5 Qe6 Qd1 Qg4 e6 Qe4 e7 Qe2 e8N Be4 Bf8 Nf3 Bb4 Ne5 Qd2 Nef7 Qc2 Bf3 Nf6+ Kd4+ Nd5 Bd7 Bf8 Bc4+ Ka4 Ba6 Nf6 Be6 Ng4 Nf2 Re7 Kd5 c7 Nfd3 c8N Kd4 Rc7 b5+ Ka3 b4+ Ka4 b3 Ne7 b2 Rc8 Bec4 Nd5 b1N Bb4 Rd7 Nb7 Bb3+ Ka5 Nbc3 Kb6 Rd6+ Kc7 Kc4 Na5+ Kb5 Nc4 Rb6 Na5 Nbc6 Kd7 Na4 Be7 Nb8+ Ke8 Qd1 Ba3 Rb7 Bb4 Qe2+
n1nn1Q1B/1P1rQb2/b5nr/6qk/b2rnR2/b2Q1Rb1/4N1K1/2Q2Nb1 w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Kd2 f3 Ra2 g3 Bg2 fxg2 Ra1 cxd6 Ke1 d5 Ra3 d4 Ra2 Qh4 Ra1 Qd8 c4 f5 h4 Kf7 b4 Kg6 e4 d5 c5 a5 b5 a3 e5 a4 b6 d3 e6 d4 b7 d2+ Ke2 f4 Kf3 d3 e7 a2 c6 a3 c7 Nd7 Rh2 Rh6 Qf1 d1N Qe2 d2 Qa6+ Kh5 Qc6 g5 Rh1 g4+ Ke4 f3 Nh3 g1B Kf4 f2 Qf6 f1B Nf2 g2 Kg3 Nb6 Qd4 Ba6 Ne4 Bf2+ Kh2 g1N Nc5 g3+ Kg2 Ne2 Na4 Be6 e8Q+ Bf7 c8Q Qg5 Qee6 Nf4+ Kf3 g2 Qde4 g1B Qd4 Ne7 Nac3 Nfg6 Qdc4 Bg3 Ne2 Nc3 Bb2 d1B Nd2 Ba4 Kg2 Ne4 Rf1 a1R Rh3 a2 Rf4 Rd1 Bh8 a1N Nf1 Nb3 Qd3 Na5 Qc1 Nec8 Qe7 Nc6 Qe8 Ba3 Qe7 B3f2+ Rg3 Qc5 Re3 Nd8 Ref3 Bg3 Rf5+ Kg4 h5 Ra7 Rf6 Qg5 R6f5 Na8 Rf6 Rh7 h6 Kh5 R6f4 Rg7 h7 Rd2 Qb3 Rd4 Qd3 Bg8 Qd6 Rd7 Qe7 Bd5 Be5 Bf7 h8Q+ Qh6 Qhe8 Qg5 Q8f8 Bac4 Re3 Nh4+ Kh1 Ra6 Bh8 Rh6 Ref3 Ng6 Kg2 Ba6
7q/R1Qb1r1B/3bB3/bqn1R2K/1q2qnR1/Rb3q2/2Qrb1P1/1b3Nk1 w - - 0 1 legal: proof: h4 f5 b4 e5 d4 exd4 e4 a5 h5 axb4 h6 d3 e5 c5 Nc3 d2+ Ke2 gxh6 Bb2 h5 Ne4 fxe4 Bc3 h4 Bd4 cxd4 c4 Kf7 f4 Kg6 a4 Kf5 e6 Kg4 f5 Kg3 c5 h5 a5 d5 a6 b5 e7 e3 e8R b3 a7 h3 c6 h2 c7 b4 f6 h4 f7 h3 Qb1 d1B+ Ke1 d3 Be2 d2+ Kf1 d4 Bd3 b2 Nf3 b3 Qc1 b1Q Ne1 b2 Be4 d3 Ra2 Nd7 Ra4 Ne7 Bh7 Nc5 Ra1 Bb3 Qc4 d1B Ra4 d2 Ra3 Qd4 Rd8 Qde4 Qe2 Ng6 Rd5 Nf4 Nc2 Bd6 f8R Bd7 Bf5 Rd8 a8B Rh7 c8Q Rf7 Rg1 h1Q Be6 Kh2 Re5 Qb4 Qd3 e2+ Kf2 e1B+ Ke3 Bg4 Qc7 d1Q Rg8 Be2 Rg4 Qb5 Ra7 Ba5 Be4 Qb4 Re1 Qf1 Bh7 Kg1 Qg6 Qd5 Rd1 h2 Rd3 h1Q Rc3 Ba2 Ra3 Bb3 Rh5 Bdb5 Rgh4 Be5 Bg8 Qd7 Qh7 Bd6 Re5 Be7 Qf5 Nfd3 Rd4 Qh8 Bh7 Qde8 Rh4 Nf4 Qe4 Rd2 Qc4 Ncd3 Ke4 Bd6 Ne3 Qf2 Nf1 Qb8 Bd5 Bd7 Be6 Rg7 Kf5 Q8b5 Rg4 Nc5+ Kf6 Rf7+ Kg5 Qe4 Qc2 b1B Kh6 Qff3 Kg5 Nfd3 Kh5 Nf4+
rQq1k2n/1nqq3q/2N3bN/4N1Bb/2qr1N2/B3b1Qq/K3n1bP/2R5 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 c5 d4 cxd4 a4 f5 Bb5 fxe4 f5 Nc6 Ra3 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Be2 Na6 Bf3 Nb8 Bg4 hxg4 Kd2 d5 c4 b5 Kc2 e5 Kb3 g3 g6 g2 a5 f3 c5 f2 f6 f1Q c6 d3 a6 e3 a7 d2 g7 d4 c7 d3 Kb2 e4 Nf3 g1N Qe1 d1B Ne5 d2 Nf3 b3 Ka1 b4 Na3 b2+ Ka2 b1B+ Ka1 e2 Qf2 e1Q Nc4 e3 Qg2 e2 Nce5 b3 Ng4 Rh4 Nfe5 Nh6 g8Q Na6 Qh7 Nc5 Qge4 Qh3 Ba3 Nb7 Qf3 Qef1 Qc2 e1Q Qff5 Qeg3 Qcd3 Bc5 Qf4 Nf7 Nh6 Be3 Qb4 Be6 c8N Bd5 Ne7 Bg2 N7c6 Bh5 Qbd6 d1Q Qb8 Qdg4 Bc1 Nh8 f7+ Kf8 Qg6 Qd7 Kb2 Qgf4 Qg3 Bbg6 Ka3 b2 Ka2 Q8c8 Bd2 Kg7 f8B+ Kf6 Bc5 Ne2 Ba3 Qc1 Rd1 Qb4 Rh1 Rd4 Rg1 Kg7 Rh1 Kf8 Re1 Bg1 Bg5 Be3 Rd1 Qc3 Rc1 Ke8 Qc7 Rb8 a8N Qa4 Nb6 Ra8 Nd5 Qca5 Qb8 Qac7 Nf4 Qa6 Kb3 b1Q+ Bb2 Qbf5 Ba3 Qc4+ Kb2 Qff7 Ka1 Qh7 Kb2 Qd3 Ka2 Qc4+
B1Q1N3/1nb2r2/2p4N/2Nbrqkr/3nPRn1/3bRbQ1/K2q2bN/3q4 w - - 0 1 illegal: No possible last move
Q4bK1/5BR1/bNr1bb2/qR4QQ/3kbp1n/Q1r1nqP1/1B4b1/2b2n2 w - - 0 1 legal: proof: e4 h5 b4 g5 d4 a5 f4 gxf4 d5 axb4 e5 h4 g3 h3 d6 cxd6 Nc3 dxe5 Nd5 e4 Ne3 Ra7 Qd6 Ra8 Ng2 hxg2 Qd1 e3 Ke2 e5 Kd3 Ke7 Ke4 Ke6 h4 b5 a4 d5+ Kf3 f5 c4 e2 a5 e1B a6 b3 c5 b4 h5 e4+ Ke2 Ke5 c6 e3 Kd3 d4 Kc4 b2 a7 b1B c7 e2 h6 d3 h7 d2 Ba3 b3 Qc2 d1B Bb2+ Bc3 Rh6 e1Q Rg6 f3 Rg4 f2 Qe2+ Be4 Ra4 f4 Rg7 Nd7 Rg4 Nb6+ Kb5 Qd3+ Rc4 Qf3 Rc5+ Kd4 Rg7 Be6 c8Q Ne7 Qb8 Nbd5 Qd6 Rc8 a8Q Nf5 Qda6 Rg8 h8Q Nh4 Qh5 Rc6 Qa3 Ne3 Qg5 Bdc2 Re5 B4d5 Rf5 Bce4 Qd1+ Qd2 Bc4 f1N Qe2 Rh8 Re5 Rh6 Qd1 Rc5+ Kb6 Bc6 Kc7 Bd3 Bd5 Ba6 Kd8 Bcb7 Ke8 Rc7 Nh3 g1B Nf2 Rc6 Ne4 Rf6 Bc1 b2 Nd6 b1B Nc4 Be4 Nb6 Bb2 Bb3 Rc3 Rb5 Ba1 Qe2 Qa2 Bb2 Bbd5 Qe7 Qa5 Qa3 Bf2 Ba2 Be1 Bb3 Bd2 Qh2 Bc1 Qh1 Nhf5 Qhh5 Nh4 Bc4 Bec8 Ba2 Rc6 Bb3 Bde6 Bc4 Bh3 Kf7 Bg2 Kg8 Bg4 Bf7 Bgf5 Rc5 Be6 Rb5 Kd3 Qac5 Rc2 Ba3 Bf6 Bb2 Rc3 Qa3 Kd4
1q2n1k1/8/q1Q1N1BR/5R2/1nPr4/rrpb1K2/r1B1nr1B/r1bB2Qr w - - 0 1 legal: proof: c4 c5 b4 e5 d4 cxd4 h4 a5 f4 exf4 h5 axb4 Nc3 bxc3 h6 gxh6 Qd2 h5 Qd1 h4 Kf2 b5 a4 f5 e4 Kf7 g4 d5 a5 h5 g5 d3 e5 h3 a6 d4 a7 d2 Qa4 d1R Rh2 d3 Rb1 d2 Bb2 f3 Qa2 f4 Qa1 h4 Qa4 b4 Ba1 b3 Rb2 Bf5 Bg2 Bd3 Bf1 Bh6 Qa5 Nc6 Qa4 Nf6 e6+ Kg8 e7 Nb4 e8B Qb8 Rc2 b2 g6 b1R g7 Rb3 Bb2 Ra1 Bd7 d1R Qc6 Raa3 Bc8 Ne8 Rg2 h2 Rg5 h1R Bg4 h3 Rf5 h2 Ne2 Rg1 Bc1 h1R Bd2 Rda1 Nd4 R1a2 Ne6 Rg2+ Ke1 f2+ Kd1 f3 Bf4 Ra6 Bh2 Bc1 Bh5 Ra1 Bg6 Rh4 Re2 R6a5 Re1 R1a2 Be2 R5a3 Rg1 f1N Ke1 Qb6 Bd1 Qa6 Bc2 f2+ Kd1 Rb8 a8B Rd4 Bb7 Ra8 Bc8 Be4+ Ke2 Bd3+ Kf3 Ng3 Re1 Ra7 Re4 Ne2 Rh4 Qb5 Rh6 Qb8 Ba6 Ra1 Bb5 R3a2 Bd1 R7a3 Ba4 Rd2 Bc2 f1Q+ Ke3 Qe1 Kf3 Qh4 Bd1 Rda2 Bc2 Qf6 Bd1 Rbb2 Bac2 Rbb3 Qa4 Rh4 Nf8 Rd4 Bh5 Qa6 Qc6 Rgg1 Ne6 Rg6 Re5 Kf7 g8Q+ Ke7 Rf5 Rg5 Nd8 Rg7 Bf7 Rgg1 Qg5+ Kf8 Bg6+ Kg8 Ne6 Rgg4 Qe3 Rg2 Qg1 Rf2+
2q2bBK/B2qRn1b/B1kn1n2/2Nn1Q1n/P6B/q1p1rb2/3Q1Rr1/4n3 w - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Nc3 f3 Nd5 g3 Nf4 axb6 Qb3 b5 Qd1 b4 Ng2 fxg2 e4 Kd7 Ke2 f5 Ke3 g5 Kd4 b5 Ke5 c5 h4 g4 d4 f4 h5 b3 h6 b4 d5 b2 d6 b1N h7 f3 a4 f2 Bd2 b3 Bd3 f1N Qc2 b2 Rh3 Na3 Be1 b1B Kf5 Ra5 Kg6 Ne7+ Kf6 Bb7 e5 Nb5 Bd2 Qc8 Bf4 Rg8 Nf3 g1N h8B g2 Qf2 g3 Nd4 Nf3 Bc1 g1N Rh4 g2 Qb2 Ng3 Bd2 Ng5 Be3 N1f3 Rf4 g1Q Ne6 Qd1 Qc2 Nf7 Ra3 Ne1 Rf2 Bg2 Rb3 Kc6 d7 Rg7 d8Q Bf3 Bh7 Qd4 Bg8 Qg4 Qdd2 Nbd6 Bd4 Rb5 Rd3 Rb3 Re3 Rg5 Re4 Re3 Bg7 Qh3 Bh6 Rg4 Bg5 Nd5+ Kg6 Nh5 Kh7 Rg2 Bh4 Nd7 Qcd3 Nd8 Kh8 N7f6 Q3c2 c3 Qcd3 c4 Ba7 c2 Nc5 c1Q e6 c3 e7 Qa3 e8B+ Kc7 Bb5 Qhd7 Ba6 Kc6 Re7 Bc2 Qg6 Bf5 Qg5 Bh7 Qf5 N8f7+
2bQB3/R1Q1bpqP/2nBn1B1/1K4nr/3R4/1qq1Nq2/B3rq2/2knn3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 a4 Ke4 h4 g5 h5 d5+ Kb5 d3 c4 g4 e3 b3 a5 b2 a6 b1N c5 d2 h6 d4 a7 d3 c6 Qc7 Nh3 g1Q Qe2 d1N Bd2 g2 Qe1 g3 Ra5 Nbc3+ Kc4 b5+ Kb3 b4 Kc4 b3 Rd5 b2 Rg5 b1Q Rd5 Ne2 Bb4 d2 Nf4 Nf6 Kb5 Qf2 Rd4+ Kf3 e4 Ke3 e5 g1Q e6 g2 e7 Ne4 e8B Qb3 Rh4 Ng5 h7 Be7 Rd7 Rf8 Nd5+ Kd3 Rh1 Kc2 Ne3+ Kc1 Rd4 Nf4 Bd3 Nfe6 Bg6 Qcg3 c7 Nc6 Qe2 Qge1 Qf1 g1N Qd3 N1f3 Rhh4 Qeg1 Rhe4 Qc3 Bd6 Ne1 Ra4 Q1g2 Red4 Qg2f3 Qc4 Qe5+ Qd5 Qg7 Qc5 Bb7 c8Q Rb8 Qd8 Bc8+ Qcb6 Rb7 a8B Rc7 Bd7 Re8 Ra2 Ra7 Qbc7 Ra4 Bb7 Rc4 Ra7 Ra4 Rd5 Rh4 Rd4 Rh5 Ba6 Nb2 Bb7 d1Q Ba8 Qdc2 Bb7 Nd1 Ba8 Nb4 Bd5 Nc6 Ba2 Q2b3+ Bb4 Bf6 Nc2 Re7 Be8 Nf4 Qa5 Re4 Qac7 Re2 Ne3 Nfe6 Nc2 Be7 Ne3 Qa3 Bd6 Qab3+
1Q2n1k1/N1r1Q1r1/8/1q1b1KN1/2B2RPR/r1Qn1n2/2bbbpn1/1Qn1q3 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kf2 f5 Kf3 Kf7 e4 h5 c4 b5 g4 d5 a5 a2 a6 d3 a7 b4 e5 d4 c5 h3 c6 h2 c7 d2 Nc3 d3 Nb1 h4 Nc3 b3 Nh3 b2 Nd5 b1N Qe1 d1B+ Qe2 d2 Ne7 Bb7+ Nd5 Qd7 c8Q Bh6 Nf2 h3 Qc6 Nf6 e6+ Kg8 e7 Na6 Qb6 Bc2 Qbb5 d1B Qc4 Nc5 Qd3 Qb5 Rg1 h1Q+ Bg2 h2 Qc3 Rh7 Qe3 Ne8 Rf1 Nd3 Qd4 Rg7 Nh3 Rc8 a8Q Nc1 Ng1 Rc7 Qb8 Nd2+ Kf2 f3 Kg3 f2 Qee4 Be3 Qc3 Be2 Nh3 Nf3 Nb6 Bd5 Nc8 Bd2 Na7 Qg1 Rb1 a1R Ng5 Ra3 Rb4 Qh1 Rd1 Qe1 Bf1 Nb3 Qed3 Nc1 Rf4 h1N+ Kh3 Ng1+ Kh4 Nf3+ Kh5 Ba4 Qb1 Bc2 Bg2 f1N Kh6 Ne3 Bf1 Nf2 Kh5 Rf7 Kg6 Bec4 Bd3 Ng2 Bf1 Nfd3 Be2 Qg3 Rh1 Qe1 Rh4 Rh7 Rd4 f4 Kf5 Rg7 Bf1 Nh2 Be2 f3 Rf4 f2 Bf1 Nf3 Be2 B4b3 Bf1 Nde5+ Bd3 Bd1 Bc4 Be2 Rh5 Ned3 Rh7 Bc2 Rh4 Rg6 Qb6 Nf6 e8Q+ Kg7 Qd7+ Kg8 Qe7 Ne8 Qb8 Rg7
4Qn1R/1rBRQK1n/1r1B3b/1n4q1/1N1nP1R1/pqk1n1b1/3b2bq/3R4 w - - 0 1 legal: proof: g4 g5 a4 h5 d4 c5 f4 cxd4 a5 gxf4 g5 e5 a6 e4 Nd2 bxa6 Ndf3 exf3 Bg2 a5 Bh3 a4 Bg4 hxg4 Kf2 Ke7 c4 Ke6 b4 Ke5 h4 d5 e4 f5 h5 a5 b5 a3 g6 a4 b6 g3+ Kf1 g2+ Kf2 d3 h6 Kd4 g7 a2 c5 a3 c6 d2 b7 Nd7 b8B Ra7 c7 Rb7 h7 Kc3 Qe1 d4 Rh4 d3 Rb1 a1B Qe3 d1Q Rh1 Qg5 Rh6 Ngf6 g8R Qb3 Rh2 Bh6 Qe2 d2 Qd1 Nf8 Qe2 d1N+ Ke1 Bb2 Qa6 f2+ Ke2 f1N Kf3 Nfe3 Ra1 Nc2 Nh3 g1B Rg2 Be3 Rg3 Bd2 Nf2 Nd4+ Kg2+ f3+ Kh3 f4+ Rg4 Be6 Nd3 f2 Rg7 f1N Qa7 f3 Rd7 f2 Nb4 Nfe3 c8Q+ Bc4 Qe8 f1Q+ Kg3 Qh1 Bd6 Bf1 Rb1 Rg8 h8R N6h7 Bc7 Bg2 Qc5+ Nc4 Qce7 Rg6 Ra1 Nd6 Rb1 Qc5 Ra1 Qg1 Kh4 N6b5 Rb1 Qd6 Kh5 Ne3 Ra1 Qf4 Rb1 Rgb6 Bd6 Nfe6 Kg6 Qg5+ Kf7 Qh2 Ra1 Kc4 Rb1 Nef8 Bc7 Bbc3 Bb2 Be1 Rd1 Bcd2 Bc3 Bg3 Bd6 Ndc2 Bce5 Ncd4 Bf4 Bh4 Bc7 Bg3 Bfd6 Kc3+
BN4Q1/r1q1Qp2/8/2rRqbQK/PNq5/1Q1nb2R/b3q2q/1rbnk3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 e4 Ke7 Ke2 Ke6 h4 Ke5 a4 Kf4 c4 g5 h5 d5 c5 b5 c6 d3+ Ke1 Ke3 h6 d4 h7 g2 c7 g3 e5 b3 e6 b2 e7 b4 e8Q+ Ne7 Rh6 b3 Qd7 g4 Na3 b1R Rh2 b2 Nh3 g1B Rg2 Na6 Nf2 Nc5 Ra2 Nf5 Qc6 Ra7 Nb5 Bh6 Be2 d2+ Kf1 d3 Qe1 d1Q Ne4 d2 Rh2 Qc2 Kg2 d1Q Qb6 Qc4 Qf6 Nd3 Bf3+ Qe2+ Nf2 Be6 c8Q Qdc7 Qb8 Rc8 h8Q Bd7 Qf1 Kd2 Nd4 Bg5 Qg8 Ne3+ Kh1 Bf5 Ba8 Bf4 Qfg5 Nd1 Kg2 Qce5 Rh3 Rc5 Qe7 Qc7 Nc6 Qee5 Nh1 Bge3 Qb3 Bg5 Qf3 Ke1 Nb8 Bc1 Nf2 Bge3 Kg1 g2 Qg3 Ra1 Kh2 b1B Rc2 Ba2 Rd2 Rb1 Qf4 Qcd6 Kg3 g1Q+ Kh4 g3 Qfg4 g2 Kh5 Qf1 Q4g7 g1Q Qgg5 Nb4 Rd4 Qc7 Rd5 Qgh2 Nd3+ Kd2 Ne1+ Nd3 Nc2 Qff2 Nb4 Ke1 Qg4 Qfc2 Q4g5 Qce2+
1B1RBn2/1n2Qb2/4r3/5qpn/Bb1KPQBn/rN6/4nb1b/1nNkr3 w - - 0 1 illegal: No possible last move
rr2QN2/1n1b1Nb1/k1nbQ2n/3B1n1K/q2R1r2/2pP4/r1Q3b1/1BQ3n1 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 e5 a4 exf4 Kf2 d5 Bb2 dxc4 Ke1 h6 Be5 f3 Bf4 Ra6 Ra3 Ra8 Rd3 Bc5 Rd5 gxf4 g5 Be7 g6 Bf8 Rg5 hxg5 Kf2 Kd7 h4 Kc6 e4 Kb6 g7 c5 d3 f5 e5 b3 h5 g4 h6 b2 e6 c3 e7 g3+ Ke1 c2 e8B c1B a5+ Ka6 h7 b5 Nh3 f2+ Ke2 c4 Kf3 b4 Bc6 b3 Be2 f1N Bd5 c3 Ng5 g2 Nh3 g1N+ Kg2 f3+ Kf2 f4 Be4 Ng3 Na3 b1R Ng5 b2 Rh4 Qe8 Nc2 Nh6 g8Q Bd7 Qe6+ Bd6 Nf7 Nc6 Bd5 Ngf5 Nd4 Ra1 Qc2 b1N Bd1 Ra2 Rg4 Rf8 h8Q Nd2 Qhe5 Rg8 Qe3 Nc4 Qed2 Bca3 Qdc1 Be5 Rh4 Bg7 Rg4 Ncd6 Rh4 Ka7 a6 Nb7 Rg4 Kb6 a7 Bd6 Rh4 Rb8 a8Q Rh8 Qe4 Rg8 Ne6 Kb5 Qaa4+ Kb6 Qb3+ Ka6 Nf8 Ra8 Qe1 Qe4 Qee3 Qa4 Qe8 Rb8 Q2d2 Rh8 Bc2 Ra8 Bb1 Rg8 Kf1 f2 Kg2 f1R Qdc2 Rb8 Kh2 f3+ Rf4 f2 Kg2 Nfe7 Kg3 Rh8 Kh4 Nef5+ Kh5 Rg8 Rd4 Ra8 Qe6 Rh8 Nh7 Rhb8 Qg6 Rd1 Qe6 f1B Nf8 Bg2 Qce2 Re1 Qbc2 Rf1 Qe8 Rf2 Q2e6 Rf4
4qK2/b1Bbn1n1/k1N5/1n3N2/r1p1b1QQ/q1b2b2/PrB2Rbn/B5B1 w - - 0 1 legal: proof: f4 a5 c4 d5 b4 axb4 g3 dxc4 Kf2 e5 Ke1 exf4 g4 h5 Na3 hxg4 Rb1 g3 Rb3 g2 Rg3 fxg3 d4 Kd7 Kd2 Kc6 Ke3 Kb6 Ke4 g5 Ke5 c5 h4 f5 e4 f4 h5 f3 d5 c3 d6 c4 h6 c2 h7 b3 d7 f2 Ke6 g4 Kf7 b2 e5 b1B e6 Ka6 e7 b5 e8Q b4 Bd2 c1Q Bh6 b3 Bg7 b2 Rh5 Bb4 Be5 Nc6 Bd3 f1B Be4 Nce7 Rh1 Bc3 Rh5 Nh6+ Kg7 Nhf5+ Kf7 Ng7 Bf5 Be4 Qd4 b1B Qc5 Bf3 Nc2 Qa3 Nd4 Bbe4 Nge2 g1N Nc6 g2 Bh2 g3 Ned4 Ne2 Qg8 g1N Qe5 g2 Qg3 Rb8 Qh4 Rb5 Bg6 Rb2 Nf5 Nd4 Rg5 Nb5 Rh5 Qda5 d8B Q5a4 Kf8 Bd7 Ba5 B3e2 Rh6 Nf3 Bac7 g1B Rh5 Be3 Bg1 Ba7 Rg5 Bh3 Rg2 Nh2 Rf2 B2f3 Ng3 Bd5 Bc2 Bhg2 Nf5 Bde4 Kf7 Nh5 Qgg4 Ra8 h8B Ng7 Bd3 Ne8 Ne5 Bad4 Re2 Bd2 Qh6+ Bdc6 Ba5 Na7 Qg3 Rb7 Bc7 Kb5 Bf6 Ng7 Bc2 Rb6 Ng4 B4e3 Bb2 Bc3 Ba1 Be8+ Kf8 Ka5 Bb8 Rb2 Rf2 Qc6 Qhf4 Nb5 Ne5 Ra6 Qfg4 Ba7 Q3h4 Qa8 Ba4 Bd7 Bc2 Kb6 Nc6 Ra4 Kf7 Ka6 Be5 Qh8 Bc7 Qh5+ Kf8 Qe8#
k4rQK/1NbnBq2/r1P5/1Br4r/nn2bQ2/1NqBp1rB/n7/1R2r3 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 gxf4 d4 f5 a4 fxe4 d5 h5 g5 c6 Ra3 cxd5 Rg3 d4 Rg4 hxg4 Kf2 e5 c4 b5 h4 d5 a5 Kd7 c5 Kc6 a6 b3 a7 Kb7 h5 g3+ Ke2 g2 h6 b4 h7 e3 Kd3 b2 g6 e2 g7 e1R Rh5 f3 Qa4 e4+ Kd2 f2 Qe8 b3 Nf3 g1R Ne5 e3+ Kd3 Ne7 g8B Nec6 Na3 b1N Bg2 b2 Rh6 f1Q+ Kc2 d3+ Kb3 d2 Rh3 d1N Nd7 d4 Qe5 d3 Kc4 d2+ Kd5 Nbc3+ Ke6 b1R Rh1 Bd6 Bh3 Bc7 Qf4 Rb5 Kf7 Na4 Nc4 Rg3 Ba3 Ndc3 Bb4 d1R Nd2 Ra1 Nb3 Rac1 Ba3 Nb4 c6+ Ka6 Ndc5+ Kb6 Rg1 Nd7 Nb7 Re5 Rh1 Nca2 Rg1 Rb8 a8B Ka7 Rh1 Rcc5 Rg1 Rf3 Kg7 Qe7+ Bf7 Rf8 h8Q Qd3 Qg8 Qc3 Kh8 Rg3 Bg6 Qe8 Bd3 Qf7 N7a5 Rb6 Bb7 Kb8 Bba6 Ka8 Bab5 Ra6 Rh1 Ndb6 Nb7 Bf5 Rh2 Nd7 Rb2 Bg6 Rb1 Nd5 Bb4 Be4 Ba5 Ndb4 Bb6 Bb8 Bd8 Bc7 Be7 Rh5#
q2Nr2b/4P3/b1qqb3/1NR1NR1B/3b1N1n/1Qrn1b1p/4bk1K/Q3q3 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kf2 Ke7 g4 Ke6 Kg2 Kd5 c4+ Ke4 a5 Ke3 g5 f5 c5 b5 g6 h5 c6 d5 a6 f3+ Kh2 d3 a7 d4 g7 a2 c7 f2 Qc1+ d2 Bh3 f1B Bg2 b4 Bf3 d3 Nc3 f4 Na4 b3 Bb7 b2 Qc6 b1Q Nc5 d1Q Qg2 f3 Qg3 d2 Qe5+ Kf2 e4 h3 Na6 h4 Qb2 Be2 e5 Ne7 g8N Nbc6 e6 Bg7 Qc3 Nb4 Bc6 Bd4 Be8 Nd3 Nc5 Nf5 e7 Be6 Qb3 Rc8 a8Q Qbc2 Rb1 a1B Nh6 Qe1 Bh5 d1Q Nd7 Qc6 Nf7 Re8 Rc1 Bh8 Rc5 Bad4 Nde5 Qa1 Qab8 Qdd6 Nd8 Qaa8 Qd1 Ke3 Qbb3 f2 Qa1 f1B Qbd1 Kf2 Qb3 Rb8 c8N Rb7 Qba2 Rb3 Na7 Rc3 Qb3 Nb2 Qb1 Ba6 Ne2 Nd3 Nf4 Be2 Rg1 Ne3 Qa1 Ng2 Kh1 h2 Nb5 Ne3+ Qd5 Nf5 Rf1+ Ke3 Kg2 h1B+ Kh2 h3 Qb3 Nh4 Rg1 Kf2 Rg5 Be4 Rf5 B4f3
qn1kn1R1/1q1r3R/q1r1rNNN/3N1Q1n/bKP2r2/1pB5/1r2p3/3Qb3 w - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 e6 fxe6 Ba6 e5 Be2 e4 Bg4 hxg4 Kd2 d5 c4 e5 a4 b5 h4 e3+ Kc2 d3+ Kb3 f3 h5 e2 h6 e1R g6 d4 g7 e4 h7 d2 a5 e3 a6 g3 a7 g2 Ne2 g1Q Rh5 d3 Rf5 f2 Rc5 f1N Nec3 Qg2 Na2 Ng3 Nbc3 Nh5 Qc2 d1R Rg5 d2 Rb1 Qb7 Ne2 Ngf6 g8Q Bd7 Kb2 b3 Kc3 b2 Ng3 b4+ Kb3 e2 Nc3 Rf1 Qd5 Rf4 Nce4 Bd6 Ra1 b1R+ Bb2 Bc6 Qf5 Ba4+ Ka2 Qa5 Bc3 Kd8 Rg8+ Ne8 Nf6 Qaa6 Qc1 Bc7 Qcc2 b3+ Ka3 Bb6 Kb4 Rb2 Rc1 Bb5 Ra1 Bf2 Ra5 Ba4+ Rb5 Rf1 Qd1 Be1 Rb6 R1f3 Rb5 Re3 Rb6 Qf7 Rb7 Re6 Rc7 Nd7 Rb7 Rc8 a8N Nb8 Nb6 Rcc6 Nbd5 Qg7 Qfc2 Qd7 Nf5 Qc7 Nh6 Qd7 Qdb1 d1Q Qf5 Qc7 Qbc2 Qa1 Qd1 Qf7 Rg5 Rg8 h8N Rg7 Rg6 Rh7 Rg8 Qc7 Ng6 Rd7 Rb5 Qca7 Rb7 Qa8 Rc7 Qc1 Rb7 Qe3 Rc7 Qea7 Rb7 Rdd6 Rbg7 Rd7 Rh7 Q7b7+
3N1Q1q/1Q3br1/Brb1rqr1/6Rp/2Qn3r/1PbqNQKn/1k4p1/4B3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxh4 g4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra3 a4 Rg3 fxg3 e4 Ke7 c4 Kf6 g5+ Ke5 g6 f5 b3 d5 c5 a5 c6 f4 g7 d3 c7 Kd4 e5 d2+ Ke2 h3 Kf3 a3 e6 a2 e7 a1R e8Q h2 Ba3 a4 Qee1 Qf6 Be7 a3 Bc4 a2 Bd8 Ra6 Bd3 Ne7 g8Q Be6 c8Q Ng6 Qd7 Rb6 Qc6 Bf7 Qc8 Bb4 Qe7 Nc6 Qee8 Bc3 Kg4 f3 Bc7 f2 Qb7 f1R Bd8 Re1 Qef8 Re6 Qc1 d1R Qbe7 Nf4 Na3 Nh3 Qcg5 h5+ Kh4 Rh6 Bc7 Rg6 Ba6 Rde1 Qd6 R1e4+ Qf4 Rf1 Bb8 a1Q Nc4 Kd3 Nf3 Kc2 Qg4 d4 Ne3+ Kb2 Rg1 h1B Ne5 d3 Qh7 Reb4 Qc4 Nd4 Nc6 d2 Nd8 d1Q Ba7 Qh8 Qg4 Bc6 Qf3 Qd3 Bb8 Rg7 Bd6 Ra4 Bb4 Rf2 Qhe4 Rh2 Qed5 Ra5 Qd7 Rag5 Qb7 R5g6 Be7 Ba5 Bb4 Rh1 Be1 Bc3 Rf1 g2 Rf2+ Kc1 Ra2 Rh2 Ra5 Kb2 Rg5 Rh1 Kg3 Rh2 Bf2 Qaf1 Be1 Rh1 Qd1 Qf6 Qg4 Ng1 Qf5 Rh4 Qf3 Nh3
1RKbR1rN/4q3/1bBr2R1/n1n3p1/1RB2q1p/2b3Qq/3bb1P1/kn3Q2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 axb4 h5 fxe4 Ke2 d5 Ke1 dxc4 Bb2 h6 Nc3 Qd3 Nce2 Qd8 Nd4 Ra4 Nf5 Ra8 Nh4 gxh4 Bf6 Ra5 Bg5 hxg5 Qb3 Ra7 Qd1 Ra8 Ke2 Kd7 Ke3 Kc6 a4 Kc5 f4 b5 h6 e5 d3 b3 f5 Kb4 a5 Kc3 h7 Kb2 d4 c5 f6 c3 a6 c4 f7 c2 d5 c1B+ Kf2 c3 d6 b4 a7 c2 d7 e3+ Kf3 e4+ Kg4 e2 Kf5 e1B Ke6 e3 Qd2 e2 Rh2 Bc5 f8R Nf6 Qd4+ Bc3 Qd5 e1B Bd3 Bc1d2 Bb5 c1Q Rh1 Ba6 Re8 Bb6 Qc4 Rg8 h8R Nc6 Qf1 Na5 Bc4 Ne4 Ne2 Nc5+ Kd6 Qc8 d8Q Qh3 Qc7 Rd8+ Ke7 Rd3 a8B Rd6 Bc6 Bg3 Ra4 Kb1 Ra3 b2 Nf4 b3 Ng6 Bf2 Ra4 Bb5 Rb4 Ka1 Rb8 b1N Rh6 b2 Nh8 Qe1+ Re6 Qe4 Re8 Qf4 Rg6 Ba6 Bf7 Be2 Bc4 Rf6 Kd8 Rd6+ Bd7 Bfd4 Kc8 Bf6 Rg1 Bd8 Rh1 Qhe3 Bc6 Qe7 Rh3 Be5 Rhb3 Bec3 Qb8 Qh2 B6b5 Be3 Qf2 Qh3+ Qf5 Nd2 Re6 b1Q Rf6 Qc1 Rg6 Rf6 Qg3 Rd6 Bc6 Ba7 Rb5 Nb1 Rb8 Bab6 Rb4 Qf1 Qf4 Bed2 Qg3 Qhh1 Qff2 Qh2 Qg1 Qf4 Qf1 Qh3+
2N1bNn1/8/R4NqQ/1QbKp2q/3pnrn1/1r1NBR1P/1r2k2n/b4n2 w - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 e6 fxe6 Ba6 e5 Be2 e4 Bg4 hxg4 Kf2 Kf7 a4 Ke6 c4 Kf5 c5 b5 c6 e5 c7 d5 g6 g3+ Ke2 Kg4 g7 g2 a5 f3+ Kd2 d3 Ke3 d4+ Kf2 d2 a6 b3 a7 b2 Qb3 d1Q Qf7 b4 Be3 b3 Na3 b1N Nc4 b2 Bh6 Qd6 Bf4 Rh3 Qe7 Nd2 Ne2 b1R Be3 g1N Ra6 Qg6 Ra5 Bd7 c8N Rb2 Ra3 Be8 Qb7 Bc5 Ra1 Nd7 Nf4 Ndf6 N4b6 Rh4 Qd5 Rb8 Nd7 R8b3 a8Q Qc2 Ndb6 Qh5 Qa6 Qb1 Nd7 Qd3 Ke1 f2+ Kd1 Kf3 h3 f1N Nf8 Ng4 Qh6 Qa6 Nd3 Qag6 Kc1 Ke2 Ra6 Ngf3 Rg1 Qf7 Rg3 N3h2 Rf3 Qfg6 Qc6 Ng3 Qb5 Ngf1 Bg1 e3 Bf2 Ne7 g8N Ne4 Nf6 Ng8 Bg1 Ngf2 Qd7 Rf4 Qc6 Nfg4 Qb5 Nfg3 Bf2 Kf1 Kd1 e2+ Kc1 e1B Be3+ Rf2 Kd1 Bc3 Kc1 Ke2 Kc2 Ra3 Qb4 Ngf1 Qb5 Ra1 Kb3 Ra3+ Kc4 Rb3 Kd5 Ba1 Na7 Kd1 Nc8 Rfb2 Bg1 Kd2 Be3+ Ke2
b2BRQ1n/r1r1rP1B/pKqp4/4qn2/bN6/k2N1Q2/bqb1Qb2/5Q2 w - - 0 1 illegal: No possible last move
2K1n3/q1PN2q1/pN3nbR/Qr1Q4/5NBn/q4np1/3bN3/1B1nkbr1 w - - 0 1 legal: proof: b4 b5 f4 c5 d4 cxd4 a4 bxa4 g4 g5 Be3 e5 Ra3 exf4 Rc3 f3 Bf4 h6 Rc5 gxf4 g5 Nc6 g6 Nb8 Rg5 hxg5 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Kd5 h4 g4 h5 a6 h6 g3 c3 f2 h7 f3 e3 f4 g7 a3 b5 a2 b6 a1Q b7 Qe7 Ne2 Nf6 g8N Qg7 Rh4 Qa3 Rh6 Ne8 Re6 Bb4 Bg2 f1B Re4 f2 Re6+ f3 Nd2 d6 Qe1 Nd7 b8N Ndf6 Nd7 Rb8 Bh3 Rb5 Bg4 Bb7 Nc4 Ba5 Nb8 Kc5 e4 d5 e5 Bb4 Kd2 d3 Ke3 d4+ Kf4 d2 Kf5 d1Q Ne7 d3 Nb6 d2 c4 Bc3 Ng6 Kb4 Rd6 Be4+ Ke6 Bd3 Ngf4 Bg6 c5 Qdb3+ Nc4 d1N c6 Bd2 c7 Qe3 Nd7 Qa7 Ncb6 Rf8 h8Q Rf7 Nc1 Kc3 Qh5 Rf8 Qh1 Rh8 Qg2 Rh1 Nce2+ Kc2 Nh5 Rg1 Nhf4 Ne3 Qa1 Nf5 Qc3+ Kd1 Qa5 Nh4 Qh1 Bf7+ Ke7 Ke1 Kd8 Bg6 e6 Bg2 e7 f1N Re6 f2 Kc8 Ne3 Rc6 Bh3 Qd5 f1N Re6 Nd1 Rd6 Ng8 Re6 Nh2 Rd6 Nef6 e8B Bf1 Bf7 Ne8 Bfe6 Bh5 Bef5 N2f3 Rh6 Ngf6 Bb1 Bg6
b5B1/P3KQq1/1qB2b1p/4npN1/1rQ1q1r1/Rr3nB1/Nkrr3B/3n4 w - - 0 1 illegal: No possible last move
1B1QNn2/1p1r1B1B/N1P3rb/6bQ/b2p1b1b/kbBq4/2nRn3/1K2b3 w - - 0 1 legal: proof: g4 f5 e4 h5 a4 hxg4 b4 e5 d4 exd4 b5 c6 e5 cxb5 Ra3 bxa4 Re3 a3 Re4 fxe4 Kd2 Ke7 f4 g5 c4 d5 Kc2 a5 h4 a4 e6 Kd6 h5 Kc5 h6 Kb4 f5 g3 e7 a2 e8B a1B f6 d3+ Kd2 a3 c5 a2 h7 g4 c6 e3+ Ke1 d2+ Ke2 g2 Kd3 g3 Kc2 e2 f7 e1B Be2 Nh6 Nh3 g1N Bb2 g2 Bg4 Rg8 h8B Nf5 Qc1 d1B+ Kd3 Be6 Bhe5 Ne2 Ng5 g1B Nh7 Ne3 Bf5 Nc2 Qg5 Nd7 Nf6 Bh6 Rh2 Bgf2 Nd2 Rg6 Qh5 Bh4 Nb3 Nf8 Bbc3+ Ka3 Nc5 Qd6 Rg2 Rd8 Na6 Rd7 Rf2 Bb2 Be4 a1B Bg3 Ng1 Rd2 Bc1 Bge5 Ne2 Bh2 Nh7 f8Q Bab2 Qe7 Nf8 Bf7 d4 Qd8 Bb3 Ne8 Qg3+ Bf3 Qh3 Bb8 Qf5+ Be4 Qf1 Ba5 Bc3 Bf5 Bb4 Be4 Bbe7 Bc3 Beg5 Bf5 Ba4 Be4 Ne3 Bf5 Bdb3 Be4 Nc2 Bf5 Rf6 Bh7 Rg6 Be6 Ng1+ Re2 Bcf4 Bd5 Ne3 Bf7 Bef2 Kd2 Be1+ Kc1 Nc2+ Rd2 Qd3 Kb1 Ne2
Q1Q4r/3q2B1/1r3n2/1N2nKR1/3NrRNq/p1Nb1q2/1nqb1p1P/3bk3 w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Kd2 f3 Ra2 g3 Bg2 fxg2 Ra1 cxd6 Ke1 d5 Ra3 d4 Ra2 Qh4 Ra1 Qd8 Kd2 Ke7 Kd3 Kf6 Ke4 a5 b4 g5 c4 d5+ Kf3 Kf5 e3 a3 b5 a2 b6 a4 c5 g4+ Ke2 Ke4 b7 f5 c6 a3 c7 f4 Qc2+ d3+ Kd2 d4 Qa4 f3 Qb5 f2 Qb2 Bh6 Nh3 Kf3 Nf4 g1R e4 g2 e5 g3 e6 Ra4 e7 Bf5 e8Q Nc6 c8N Ne5 b8N Nf6 Qe6 Qd7 Qbb6 Re1 Qg8 g1Q Qd5+ Re4 Qbc6 g2 Bb2 Ra6 Nd6 Rb6 Nc3 Qb1 Rc1 g1Q Qc8 Qg4 Ndb5 Qh4 Qa8 Bg6 Nc6 Bh7 Kd1 d2 Ne6 Qd3 Rab1 a1Q Rc2 Qa2 Rcc1 Qdc4 Kc2 Qcd5 Rg1 d1N Rg5 d3+ Kd2 Qac4 Ba1 Qcc5 Rb4 Nb2 Rd4 Qf7 Ra4 Qdd7 Rd4 Qfh5 Ra4 Q5g4 Ned4+ Kg2 Rb4 Kf1 Rc4 Qf3 Rb4 Nf7 Ne5 Bg6 Ng4 Ne5 Kc1 d2+ Kc2 d1B+ Kd2 Rf4 Ra4 Bd3 Rc4 Qfd5 Ke3 Re4+ Kd2 Qh5 Nc6 Re1 Ne2 Ng8 Kc3 Qf3 Rg7 Nf7 Rg6 Qh4 Rg7 Bc1 Rg5 Be3 Na5 Qcc7 Nc6 Bc1 Rf4 Nc4 Nd6 Bd2+ Kd4 Qfg3 Bc3 Nb2 Kd5 Qe3 Bg7 Ne5 Ncd4 Qc2 Nc3 Qeg3 Nf3 Re4 Nd4 Qf5 N6b5 Ke1 Qe8 Qf3 Qec8 Rb8 Kd6 Nf6 Ke7 Rb7+ Kd6 Rb6+ Ke7 Ned7+ Kf7 Qd5+ Kg6 Ne5+ Kf5 Qd7+
bBBnb1r1/3p1b1N/K1nQQ3/b2n2N1/qr3b2/3R1Pp1/r7/1BBb1k2 w - - 0 1 legal: proof: b4 c5 a4 a5 e4 axb4 g4 f5 d4 fxe4 g5 cxd4 g6 hxg6 Ra3 g5 Rb3 g4 Rd3 exd3 Kd2 Kf7 c4 Kg6 h4 Kh5 c5 e5 c6 g5 a5 b5 a6 b3 a7 e4 c7 b2 f3 e3+ Ke1 b4 Rh2 d2+ Ke2 g3 Kd3 b3 Kc4 g4 Kb5 e2 Rg2 e1B Bc4 d3 Ne2 Nf6 Nec3 Bd6 Ka5 Nc6+ Kb5 Bf4 Rh2 g2 Na2 g1N Rh3 g3 Kb6 Bb7 Nac3 Rg8 Nd5 Ne2 Ne3 Ned4 Nd5 Ne6 Nbc3 b1R Rh2 b2 Ne4 Qe7 c8B Ned8 Kb5 Qa3 Ng5 Qa2 Qb3 d1B Rd2 Qa4+ Kb6 Bc2 Qb4 Bb3 Qd6 Ba2 Rd1 d2 Bd3 Rb8 a8Q Ra1 Qa5 Ba8+ Ka6 Rb4 Bb1 Bb3 Qe6 Ra2 Qd6 Bc2 Qe6 Bg6 Qd6 Bf7 Qe6 Ng4 Qd6 Ne3 Nf6+ Kh6 h5 Nd5 Bg6 b1B Nfh7 Be8 Qe6 Bf5 Qd6 Be6 Bb1 Qb3 Qa3 Qc2 Qe5 B6f7 Qf5 Bf2 Qe5 Bb6 Qe7 Ba5 Qe6+ Nf6 Qd3 Qb3 Qdd6 Qa4 Re1 d1B Re3 Kg7 Rd3 Nd5 Nf6 Na7 h6+ Kg6 h7 Nac6 h8B Kh6 Nfh7+ Kh5 Qee7 Kh4 Bf6 Rd2 Be5 Ra2 Ne4+ Kh3 Neg5+ Kg2 Qde6 Bg6 Bb8 Kf1 Q7d6 Bgf7
3B3Q/1NQ1Kp2/1n1n1p1R/3r1n1n/3nPB1k/1nq4B/1bb3Bq/nR3r2 w - - 0 1 legal: proof: b4 h5 f4 c5 d4 cxd4 g4 hxg4 a4 a5 f5 axb4 f6 exf6 Na3 bxa3 Kf2 Ke7 Kg3 b5 Kf4 g5+ Kf5 d3 c4 d2 h4 g3 a5 b4 e3 a2 a6 g2 h5 b3 a7 b2 c5 b1N c6 g4 c7 d5+ Kf4 g3 h6 d4 h7 d3 Rh5 Ke6 Ne2 g1Q Rh6 g2 Rh1 Nc6 Bb2 Nge7 Kg4 Nd4 Rh4 Qh2 Nc1 g1N Be2 Nd5 Ba3 Nb6 Bb4 Nh3 Qc2 d1N Bd2 Nb2 Bf1 Ba3 Ba5 d2 Nb3 d1N Rh6 Nf4 Bg2 Nd2 Rb1 a1N Qc1 Rf8 h8B Nb2c4 Bg7 Bb2 Qc2 Rb8 a8Q Nd6 Qc1 Bd7 c8B Nh5 Qc7 Rb7 Nc5+ Ke5+ Ne6 Ba4 e4 Bc2 Nc5 N2b3 Bf5 Ra7 Nb7 Qc8 Be6 Re8 Bf8 Re7 Bd2 Rd7 Be7 Ra5 Bd8 Rd5 Qab8 Nc3 Bc1 Nf5 Be3 Ne2 Kf3 Nfg3 Beh3 Rd1 Bc1 Ned4+ Ke3 Rf1 Bd2 Bd1 Kd3 Ngf5 Be3 Bc1 Kc3 Bb2+ Kb4 Bc2 Bd2 Ne3 Qa8 Kf4 Bc1 Kg3 Qab8 Nef5 Bf4+ Kh4 Qa8 Nd2 Kc5 Qb8 Be7 Qa7 Qh8 Qa6 Bd8 Qd3 Qg7 Qf3 Qh8 N2b3+ Kb4 Ndc8 Qg7 Ne6 Qh8 Qe3 Kb5 Rd5+ Kc6 Qf3 Na5 Ncd6 Nb7 Nbc8 Kd7 Ned4 Qb6 Qc3 Qc7 Nc4+ Ke8 N8b6 Kf8 Nfe3 Ke8 Nd6+ Ke7 Nef5+
2rR4/q3B3/bb2Bbk1/1q2nR2/N3QnK1/1npr1BpP/B3q3/b2q2Q1 w - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Nc3 f3 Nd5 g3 Nf4 axb6 Qb3 b5 Qd1 b4 Ng2 fxg2 d4 f5 e4 Kf7 Ke2 g5 Kf3 b5 a4 c5 e5 f4 h3 b3 a5 c3 d5 b4 e6+ Kg6 e7 b2 a6 b1N d6 c2 d7 c4 a7 c3 Qd2 b3 Qd5 b2 Be3 c1B Bb6 g4+ Ke4 f3 Qb3 f2 Qa2 Nd2+ Kf4 b1Q Bc5 Nc6 Qa4 Ne5 Bc4 f1Q+ Nf3 g1Q Ba2 Qe2 Ne1 g2 Nd3 g3 Nb2 Ba6 Qd1 Qe8 d8Q Bg7 Na4 Rc8 a8B Bf6 Bf3 Bb2 Qd5 Nb3 Qb7 Qf7 e8B Ne7 Bd7 Rhd8 Be6 Rd3 Bd6 Qb6 Rf1 g1B Qc6 Qb5 Qe4+ Kg7 Ba3 Bb6 Rf2 Kh6 Qg1 Nd5+ Kf5 Qbf1 Rd1 Qa7 Be7 Ba1 Rd2 Qfd1 Rf1 Nf7 Kg4 Nf4 Rf2 Re3 Rd5 Rd3 Rf5 Kg6 Rg2 Qe3 Rc2 Qee2 Rd2 Re3 Rd4 Rd3 Rd8 Ne5+
n1K3k1/B2N2r1/2n2qr1/b1Qp1Q2/3NQP2/1rrQ2nB/bq1p2R1/5q1n w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ke1 b4 Ra3 bxa3 Kd2 Kf7 g4 h5 c4 b5 f4 e5 a5 b4 c5 h3 a6 h2 a7 a2 c6 a1Q g5 e3+ Kd3 h4 Ke4 d3 Kd5 e2 c7 e1Q Nd2 h3 Qe2 b3 Ndf3 e4 Nh4 d2 Qa6 b2 Ke5 b1R+ Kf5 e3 Ba3 e2 Nhf3 Ne7+ Ke4 Nd5 Kf5 Rh7 g6+ Kg8 g7 Bb4 Bb2 Nb6 Qd3 Nc6 Ne5 Ba5 Bd4 Rb3 Ngf3 Qb2 Rg1 h1N Rg2 h2 Bc5 d6+ Nd7 Ng3+ Ke6 h1N Nd4 Rb8 a8Q Rc3 Qb7 Na8 Ba7 d5 Qbb5 Ba6 Qc5 Bc4 c8Q Ba2 Qe4 Qd1 Qa6 e1R Qd3 Qh4 Kd6 Rbb3 Qf5 Nb6 Kc7 Na8+ Kc8 Re7 Qde4 Rh6 Qd3 Rg6 Qde4 Kh7 Qd3 Qf6 g8Q+ Kh6 Qfe4 Reg7 Qge6 Kh7 Q6f5 Qdb1 Rh2+ Kg8 Bh3 Q1a1 Rg2 Qf1
1kr1r2q/4Qq2/Q2b1RqB/b2pN1p1/4Qq1P/1nrn4/Q1b4r/N5KR w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 c4 d5 e4 Kd7 h4 Kc7 a4 f5 a5 b5 c5 g5 a6 d3 a7 d2+ Ke2 b3 e5 b4 c6 f4 e6 f3+ Ke3 f2 e7 f1Q e8Q b2 Qeh5 b3 Qde2 d1R Qb5 Nd7 Qa6 Ne7 Nd2 b1R Ne2 g1B+ Kd3 b2 Ra5 g2 Qf3 Bb6 Qh3 g1Q Qf5 Qgf2 Qf3 Nf5 Qe4 Nd4 Rb5 Qh2 Ke3 Nc5 Nf4 Nd3 Ng6 Bf5 Ne5 Bd6 Nb3 Rd2 Na1 Ba5 Rb6 Rc8 a8Q Rf2 Bd2 Rc1 Bc3 b1Q Bb4 Re8 Bc3 Ba3 Bb4 Rfc2 Bf8 Nb3 Bg7 Bd6 Bh6 Ne1 Qe2 Nd3 Qa6 Rc3 Qc2 Qf6 Qa2 Qh8 Qa7+ Kd8 Qf7 R1c2 Qf8 Kc7 Qe7+ Bd7 Ra6 Qf7 Rb6 Rb2 Ra6 Kb8 c7+ Kb7 Rc6 Bg4 Ra6 Bd1 Rc6 Bc2 Ra6 Ba3 Rf6 Bd6 Kf3 Qf4+ Kg2 Bd1+ Kg1 Rh2 Qee2 Bc2+ Qe1 Rb8 c8Q+ Ka8 Qc4 Rbc8 Qc6+ Kb8 Qa6 Qb2 Qe4 Qa3 Qe1 Qab4 Qe2 Qbe4 Qe1 Qeh7 Qe4 Qhg6
nNNNbbb1/r3b3/3n2q1/1R1R3Q/1NQ2p1r/q4P1n/Bpb4p/k3K3 w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a5 c5 a4 c6 Nxc6 b6 a3 Bb2 axb2 Qh5 Nb8 Qd1 Qd4 Nh3 Qxb6 Ng1 Qd4 Qe2 Qd3 Qd1 Qd8 a4 Kd7 d4 Kd6 g4 Kd5 a5 c5 a6 f5 g5 h5 a7 b5 g6 e5 g7 c4 Qf3 h3 Qb3 e3 Qd1 h2 Qf3+ e4 Qf4 h4 Nd2 b1B Be2 h3 Ra2 b4 Bf1 b3 Bg2 e2 Qh4 c3 Qf4 c2 Nc4 Qe8 Nd2 Qg6 Bf3 Rh4 Qc7 f4 Nc4 Ne7 g8Q+ Be6 Qd8+ Nd7 Qh8 Nf5 Qg5 Bg8 Qg2 Nb6 Na5 Nd6 Nc6 Kc4 Qf1 Kc3 Ra5 Kb2 Rd5 Ka1 Qh5 c1N Bg2 b2 Nf3 Bc2 Nb4 Be7 Rg1 h1B Ne5 h2 Nd7 Bf8 Nb8 Nd3+ Kd2+ e1B+ Ke2 e3 f3 Be7 Bh3 Bg2 Be6 Bh3 Rgg5 Nf2 Rb5 Bf8 Ba2 Bd7 d5 Nh3 Rf5 Be8 Rg5 Nb7 d6 Be7 d7 Nd6 d8N Bf8 Qf2 Bc3 Rbd5 Bf6 Ke1 e2 Qd4 B6e7 Rb5 Qd3 Rgd5 Qa3 Kd2 Bb3 Qc4 e1Q+ Kd3 Qb1+ Kd2 Qg6 Ke1 Ba4 Nb8c6 Rb8 a8N Rb7 Nb8 Bc2 Qf1 Nbc4 Nb6 Ra7 Nc8 Nb6 Qc4 Na8
7k/1Q2K2n/2b4P/N1nQR1pr/R2rp1r1/3bbqb1/1q2R1Rp/B3bN2 w - - 0 1 legal: proof: c4 d5 g4 dxc4 e4 f5 h4 fxe4 b4 a5 g5 axb4 g6 hxg6 Ba3 g5 Bc1 g4 Bh3 gxh3 Ke2 Kf7 Ke3 e5 f4 b5 a4 g5 d4 Kg7 a5 c5 f5 b3 a6 b2 d5 c3 d6 h2 d7 c2 h5 c4 a7 c3 Na3 b1R Nf3 b4 Qd3 b3 Qd5 b2 Qd6 Na6 Qb6 Nc5 Rg1 Bb7 Nc4 Bc6 Rg2 Bd6 Ra4 Qf6 Nfd2 Rd8 a8R Rh7 Qa6 Kh8 Qb7 Qf8 Rc8 Nf6 Nf1 Rh6 Rc7 Nh7 f6 Qf7 Bd2 c1B Na5 c2 Rc8 Qd5 f7 Ra1 Ra8 b1B Ra2 Bb8 Rb2 Ra4 f8R+ Kg7 Rff2 Kh8 Rb5 Bd6 Re2 Qd3+ Kf2 e3+ Kg3 Rg4+ Kh3 e4 Bc3+ Be5 Ba1 Bd2 Ra6 c1Q Ra8 Qb2 Ra7 Re8 d8Q Bg3 Qd5 Rd8 Ra6 Qa3 Ra7 Bd3 Ra8 Rf6 h6 Rf3 Nc4 Bc1 Ra4 Rd7 Na5 Qb3 Rd2 e2 Rc2 e1B Rce2 Bcd2 Rd4 Qd1 Qc4 Na6 Ref2 Rgf4 Qc5 Be3 Ra4 Rd4 Qd6 Qde2 Re5 Nc5 Qd5 Bh4+ Ng3 Rf8 Kg4 R8f4+ Kh5 Rg4 Kg6 Qd1 Nf1 Rh3 Kf7 Bg3 Ke7 Qf3 Re2 Rh5
5bR1/q1N4k/1NpB1q2/n4b1p/2rrbpQ1/P7/qQ3Rqq/nQK1Q3 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 h4 g5 a3 gxh4 e3 c3 Be2 Ra7 Bc4 Ra8 Ba2 b3 Qf3 bxa2 Qh5 Nd7 Qd1 Nb8 d4 h5 g4 f5 d5 Kf7 d6 Kg7 e4 b5 e5 c2 Kd2 b4 d7 f3 e6 b3 g5 h3 e7 f4 e8Q f2 g6 f1Q Qde2 h2 Qe1 b2 Q1e4 Ne7 Nc3 b1B Nge2 Na6 Na4 Nc6 Qf5 Qg2 Rf1 h1Q Nb6 Na5 Bb2+ Qf6 d8Q c6 Qd4 Nb4 Rf2 Qhh2 Kc1 Be6 Qb5 Bf5 Nc3 Rd8 Qde4 Rd4 Ncd5 Rc4 Be5 Kh6 g7 Kh7 Bd6 Rg8 Kd2 Rh8 Nc7 c1Q+ Ke2 Qcg1 Kd2 Nc2 g8Q+ Kh6 Qg4 Kh7 Qb2 Rg8 Q8e5 Rg7 Qd3 Rd7 Qe1 Be4 Be7 Rdd4 Kc1 Bf5 Rd2 Qe3 Bd6 Qee7 Rf2 Qd7 Ncd5 Qa7 Nc7 Be4 Kd2 Qf3 Qe3 Qfg3 Qg5 Bf5 Qe6 Ne3 Qe8 Bc2 Rg1 a1Q Qe6 Qa2 Kc1 Qf3 Qg2 Qfg3 Qh3 Qf3 Rg8 Qfg2 Qg4 Bb1+ Kd2 Nc2 Qe1 Na1 Kd1 Bc2+ Kc1 Bd1+ Qdc2 Bf3 Qb1 B3e4 Qcc3 Nc2 Qcb2 Na1+
r1k3K1/1r1n4/p2Q2b1/N3q3/1p5R/P1bprNBQ/q2qR1qn/q1R2R2 w - - 0 1 legal: proof: d4 c5 g4 f5 f4 e5 b4 exd4 e4 cxb4 Nd2 fxe4 Qf3 g5 Nb1 h6 Qd1 gxf4 g5 h5 Bh3 Ne7 Bf5 Ng8 Bg4 hxg4 Kf2 b5 c4 d5 h4 Kd7 a3 f3 Kg3 d3 Kf4 g3 Kf5 d2 Kg6 a6 Kf7 g2 h5 f2 c5 f1R+ Qf3 d1Q h6 d4 h7 b3 g6 b2 g7 b4 Bd2 e3 Ra2 e2 Be3 e1Q Nh3 g1Q Bf4 Nf6 g8Q Qe5 Bg3 Ng4 Qg6 Nh2 Nd2 b1Q Nc4 Bg7 Re2 Qg2 Na5 Re1 Rf1 Qa2+ Qb3 Rg8 h8R Qda1 Rh4 d3 Ng1 Qdg5 Nf3 Qgd2 c6+ Kc7 Qc4 Bf5 Qd6+ Kc8 c7 Nd7 Qcd5 Rh8 Q5e6 Rh7 Kg8 Bf6 Rh5 Bg6 Rh4 Rf7 Qh3 Qh5 Ref2 Re3 Re2 Bc3 Nb3 Kb7+ c8R Qe5 Na5+ Ka7 Qd5 Nb8 Rfe1 Bd4 Rh5 Rb7 Rcc1 Bc3 Rh4 Kb6 Qde6+ Kc7 Rf1 Kd8 Qd5+ Nd7 Qde6 Kc8 Qd5 Q2b1 Qd6 Qba2+
2r5/1bN2np1/NpPRrb1b/n3pn2/RQ1qN2b/2qNk3/1b5K/1Q1B4 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Bf1 b4 Ba3 bxa3 f4 Kf7 Kf2 Kg6 Kg3 Kf5 h4 e5 c4 d5 h5 d3 c5 a2 h6 e3 h7 Ke4 a5 d4 f5 e2 a6 e1B+ Kh2 d2 a7 g3+ Kg2 b6 f6 d3 f7 Nc6 Qb3 d1Q Rh3 d2 Bd3+ Ke3 Qb4 Qd4 Bc2 Qc1 Nc3 d1N Rh6 Bb7 Nh3 Na5+ c6 Be7 f8N Rc8 a8N Bf6 Ne4 Qcd2+ Nhf2 Q2c3 Kg1 g2 Nd3 Beh4 Nd7 Re8 Nc7 Re6 Rg6 Nh6 N7c5 Nf7 Kh2 Rc8 h8Q g1B+ Kh1 Rce8 N5a6 Rc8 Qh7 Bh2 Ba4 Bf4 Kg2 Bh6 Kh2 Kf3 Bb3 Ne3 Bc2 Nf5 Ba4 Ke3 Bd1 Bd8 Rf6 Re8 Rd6 Bdf6 Rb1 a1B Rb3 Qdc4 Ra3 Q4d4 Ra4 Bb2 Qg8 Nh8 Qa2 Re6 Qb1 Nf7
2n2q2/1N2Pb1Q/kbb1bB2/q3B3/pRb5/r4B1K/3Qpp1B/1n1r2qR w - - 0 1 legal: proof: f4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 e5 h6 gxh6 Rh2 h5 Rh1 h4 e4 f6 Qd2 Ba6 f5 Bb7 Qf4 Bc8 Nd2 Bc5 Ndf3 exf4 e5 Be7 e6 Bf8 Ne5 fxe5 Kf2 d5 b4 h5 g4 a5 Kg2 f3+ Kh2 f2 c4 h3 g5 d3 f6 a3 c5 d2 g6 d1B g7 a2 c6 e4 b5 d4 b6 d3 c7 e3 b7 e2 Be3 d2 Kg3 h4+ Kg4 h2 Kh3 Bc5 Rb1 a1Q Kg2 h3+ Kg3 Ne7 Rb2 Nd5 e7 Kd7 g8Q Kc6 f7 Be6 f8B Nd7 b8B Bb3 c8Q+ Kb5 Rc2 d1Q Qg6 Bf7 Bd4 Nc3 Qc7 Nb6 Qgd6 Ka6 Bfg7 Nb1 Nf3 Bbc4 Bg2 Qf8 Nh4 Qg1 Bde5 Rg8 Qd3 Nc8 Nf5 Bb6 Qcd7 Qc3 Bbc7 a4 Rc1 Qa5 Nd6 Ra7 Bb8 Rb7 Q7f5 Rd7 Nb7 Rd4 Qc2 Rd1 Qh7 Rh8 Bgf6 Rg8+ Kh4 Rg3 Qd2 Ra3 Bc6 Qe1 Rf1 h1B Bf3 h2 Rc2 Bg2 Rb2 h1B Rg1 Qf1 Rb4 Qe1 Bh2 Qf1 Bbe5 Qe1 Bh5 Bc6 Bf3 Bg2 Rh1 Qg1 Bh5 Bge4 Bf3 Bed5 Kh3 Bde6+
1Rq2k2/nq1P2q1/p1bR4/Qq1nbr2/2RpK2p/r1N4B/2Q3N1/Rnq5 w - - 0 1 legal: proof: h4 e5 f4 exf4 a4 b5 c4 bxa4 d4 g5 c5 gxh4 Be3 d6 d5 dxc5 Bd4 cxd4 Kf2 f5 Kf3 h5 e4 c5 b4 h3 g4 c4 d6 a3 g5 h2 b5 a2 e5 c3 b6 h4 e6 c2 b7 c1Q e7 Rh5 g6 Nf6 g7 Nc6 b8Q Bb7 g8R Nd5 Qa4 Qc8 Rg6 Bg7 Qc2 Be5 Kf2 f3 Bg2 f4 Qb3 Rf5 Qd1 Kf7 Ke1 f2+ Ke2 f1N Kd3 f3 e8R f2 d7 Nd2 Bh3 f1Q+ Ne2 Qg2 Rd6 Qg7 Nbc3 Nb1 Rf1 h1Q Nf4 Qb2 Rf3 Qb5+ Ke4 Qhg2 Qc7 Qh1 Re7+ Kf8 Ng2 a6 Ne3 Ndb4 Qa5 Qbf1 Na4 Qc7 Qc2 Rc8 Re8+ Kf7 Ng2 Qb5 Rc3 Na7+ Rcc6 Rf3 Rg8 Rf8 Ne1 Ra3+ Kf5 Qhd5 Rc4 Qdc6 Rh6 Nd5 Ng2 Q6b6 Rgh8 Bc6 Ke4 Qbb7 Nc3 Ke7 Rg6 Rf5 Rb8 Qcc8 Rd6 Kf8 Kd3 Nd2 Rb1 a1Q Rh1 Qab2 Ra1 Nb1 Ke4 Qc1
2r5/2q3rQ/kn6/1RRB1Bnq/qQ1P4/QpK1p1q1/rb1pb1N1/1Q2n3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 h5 fxe4 h6 c5 Ne2 gxh6 Ng1 h5 Qe2 h4 Qf3 Nh6 Qd1 Ng8 d3 c4 Bd2 c3 Ke2 cxd2 c4 d5 c5 Qb6 Na3 Qd8 Nc4 dxc4 a4 Kd7 f4 Kc6 g4 b5 a5 Kb7 d4 h5 c6+ Ka6 g5 e5 f5 b3 f6 e3 g6 c3 Kd3 e2 f7 e1N+ Ke2 h3 g7 c2 c7 c1R Qc2 b4 Qf5 b2 Qb1 e4 Ra3 b3 Qa1 b1Q Nf3 h4 Bg2 h2 Rf1 h1Q Ne5 h3 Ra4 e3 Nd3 h2 Ra3 Nd7 Rf5 Nh6 g8Q Qg1 Rb5 h1Q Nf4 Qa2 Qb1 Rh7 Bd5 Qg3 Ng2 Rg7 Qgh7 Nb6 Rc5 Bd6 f8Q Nf7 Ra4 Bh3 Rb4 Qa4 Rbb5 Ng5 Qe7 Qb8 c8B+ Qb7 Bg4 Qc7 Bf5 Rc2 Qf8 Ra2 Qe7 Rc8 Qf8 Nc2 Kd3 Bg4 Kc3 Be2 Qe7 Ne1 Qf8 Ka7 a6 Be7 Rc6 Ba3 Qb4 Qh5 Rcc5 Qb7 Qa5 Bc1 Qb4 Kb8 a7+ Ka8 Bc4 Qbc7 Bce6 Kb7 Bd5+ Ka6 a8Q+ Qa7 Qc6 Qaf7 Qe8 Qb7 Qee4 Qc6 Qa1 Qcc7 Qeb1 Rgg8 Qab2 Rg7 Q2a3 Bb2+
3r4/2N2QN1/1q2rR1q/3n4/1p2nqNr/kP1pbN2/1n5p/nK1BQbB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 d4 c5 f5 cxd4 f6 exf6 a5 f5 a6 f4 Nc3 Bxa6 Ra3 b4 Nb1 Bb7 Rc3 Ba6 Rc8 Bxc8 Kd2 a5 g4 f5 c4 h5 Kc2 d5 e4 Kd7 g5 Kc6 g6 h3 c5 f3 g7 f4 e5 a4 e6 f2 e7 h4 e8N h2 Ba6 f1R Na3 h3 Nb5 d3+ Kb1 a3 Nbc7 d2 Qg4 d1N Ne2 a2+ Kc2 a1N+ Kb1 d4 Qh4 f3 Bd2 d3 Be1 f2 Ne6 Nf6 g8N Qb6 N8g7 Ne4 Qh7 Nd7 Bc4 Ndf6 Nh6 Nd5 Bb3 Kb5 c6 Bc5 c7 Be3 Ng4 Rg1 Qh4 f1Q N2d4+ Ka5 Bc3 Qf4 Nf3 Re1 Rf1 h1Q Bd4 h2 Qf6 Rh4 Qf7 Qh6 Rf2 Qf1 Bc2 Bb7 c8Q Kb5 Qc3 Rd8 Bb3 Re2 Qe1 Ba8 Ba2 Ka4 Nc7 Bc6 Bc4 Bd7 b3+ Ka3 Bb5 Nb2 Bc6 Qh3 Bb7 Qg3 Rf1 Qgf4 Bc6 Bd2 Bg1 Bc8 Bd7 Be3 Bf5 Rc2 Bg6 Rc6 Bh5 Re6 Nd2 Qfd6 Rf6 Qdf4 Nf3 Ree8 Nf2 Bh3 Ng4 Bf1 Ng5 Nf2 Ne5 Nh1 Bd1 Re6 Ngf3 Nf2 Ng4 Ne4
rRn2K2/1q1BpRBq/8/2bB3b/1k2b2P/r2n1ppr/1q2Q1BN/Q6q w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 e5 axb4 e6 fxe6 Nd2 e5 Ndf3 e4 Ba6 exf3 Bd3 Qc7 Bf1 Qd8 Kf2 d5 Kg3 Kd7 a4 Kc6 c4 Kc5 a5 g5 f5 b5 h3 b3 f6 b2 f7 b1B a6 b4 a7 d3 Ra2 d4 Re2 d2 Rhh2 d3 Rhf2 b3 Qc2 d1Q Qa2 b2 Bg2 d2 Qa1 Qd4 Re3 Nf6 Re5+ Kb4 c5 Bh6 f8Q Nfd7 c6 Qc2 c7 d1Q Qf4 Nc5 Rf5 Nbd7 Ne2 Nd3 Qe5 Nb6 Rf7 Qh1 Bf4 Bf5 c8B Bg6 Bd7 Nc8 h4 Bh5 Bc1 Qe4 Be3 Qh7 Bd4 Qc7 Rf1 Qb7 Rg1 Bc2 Rb1 Rg8 Qe4 Rg6 Qe3 Ra6 Bg7 Ra3 Qe5 Ba4 Qe3 Bc6 Qe5 Rb8 a8B Be4 Re1 b1Q Rc1 Qb6 Bd5 Rba8 Rc7 Qb2 Rb7 Qb5 Rb8 Qb7 Nd4 R3a4 Nf5 Ra2 Ne3 R2a3 Bf6 Bg7 Nf1 Bh6 Bh8 Bg7 Qe6 Bd4 Nh2 Bc5 Qe5 Bf5 Qe2 Be4 Bd4 Nf4 Kf2 Nd3+ Ke3 g3 Bdh3 Bd6 Bd7 g4 Bg7 Bc5+ Bd4 Nc1+ Kf4 Nd3+ Kg5 Nf2 Bh3 g2 Bg7 g1R Bf1 g3 Bg2 Qf5+ Kh6 Nd3 Bd4 Rb1 Kg7 Qh7+ Kf8 Qg1 Ng4 Qh2 Bg7 Rh1 Qef1 Qg1 Qe2 Rh3 Nh2 Qh1
4KrB1/1N1p2pb/Q4bNn/n1r5/b2n1N2/Pq6/bp1R1bN1/kBb2Q2 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 b5 hxg4 a3 e5 b6 e4 Kd2 axb6 Ke1 b5 Bg5 b4 Be3 Ra6 Bc1 Ra8 Ra2 f6 Rb2 Ke7 Rb3 Ke8 Rd3 exd3 e4 Qc7 e5 Ne7 e6 Qd8 Bf4 Ng8 Be5 fxe5 Kd2 Ke7 h4 Kf6 f4 b5 c4 g3 e7 e4 e8B g2 f5 Ke5 c5 e3+ Ke1 e2 Kd2 e1B+ Kc1 b3 Kb2 b4 h5 d2 c6 d3 h6 Kd4 c7 Nc6 f6 Bb7 c8Q Bf2 f7 Na5 h7 Be4 Be2 Nh6 Qc7 Be7 f8N Bf6 Ng6 Rc8 Nf4 Rf8 h8N Rf7 Rh2 Bh7 Ngh3 g1B Qf1 d1B Nhg6 d2 Qb6+ Rc5 Bd3 Qb8 Qa6 Bc2 Nc3 d1N+ Kc1 b2+ Kd2 b1B Na4 b3 Ng2 b2 Nhf4 Qb3 Ke2 Ba2 Kf3 Nc3 Bf5 Re5 Nc5 Nb5+ Bd3 Kc3 Nb7 Rc5 Ke4 Bd1 Bc2 Nd4 Bb1 Rc4 Kd5 Rc5+ Kd6 Be3 N2h4 Bc1 Rd2 Bf2 Nhg2 Qc4 Qh1 Ba4 Qf1 Qb5 Ne3 Kb3 Neg2 Re7 Bf7+ Qc4 Bg8 Rf7 Be4 Qd3 Rd1 Kc2 Rd2+ Kb1 Bf5 Ka1 Be4 Qb3 Bb1 Rd5+ Kc7 Be5+ Kd8 Bf6+ Ke8 Rb5 Bd3 Rc5 Bb1 Rf8+
N4n1N/2q4Q/Pn3k1r/1Qp1Rb2/3R2nn/B1N2bN1/p2pK2b/q2r2b1 w - - 0 1 illegal: No proof kernel
R2q1b2/1pQn1n1n/N4r1R/p1p4n/rN3qQ1/1qBq4/3PbK1k/1Q3Q2 w - - 0 1 legal: proof: h4 e5 a4 g5 c4 gxh4 b4 c6 f4 exf4 e3 Na6 c5 Nb8 b5 cxb5 c6 bxa4 c7 a3 Bb5 Nh6 Ba4 Ng8 Bc6 dxc6 g4 Ke7 g5 Kd6 g6 Ke5 g7 h5 e4 f5 Qa4 c5 Rh2 a2 Rh3 f3 Qa3 Kf4 e5 f2+ Kf1 Rh6 e6 Nd7 e7 Rf6 e8Q Nh6 g8Q Nf7 Rc3 h3 Qb2 h2 Kg2 f1Q+ Kh1 h4 Qh8 Qd3 Kg2 h1N Qe1 h3+ Kh2 Ng3 Nf3 Nh5 Kg1 h2+ Kg2 h1N Nd4 Nf2 Qg7 Nh3 Nc6 Nhg5 Na3 Nh7 Nb8 a6 Nc2 Ra7 Rb1 a1Q Nb4 Qa3 Ra1 Qb3 Qb1 Ra8 Kg1 Kf3 Qg6 f4 Bb2 Ra7 Qf5 Ra8 Qf1+ Kg3 Rc4 f3 Bc3 Ra7 Rd4 Ra8 Rd6 Ra7 Qe2 f2+ Kf1 Kh2 Qg4 Qdc2 Qd3 Ra8 Ke2 f1Q+ Ke3 Qf5 Qdf1 Qf4+ Ke2 Qd3+ Ke1 Rf5 Rh6 Rf6 Ra3 Nde5 Ra5 Bf5 c8Q Nd7 Qc7 Be4 Rb5 Bf3 Kf2 a5 Rb6 Ra6 Re6 Rd6 Re8 Rd4 N8a6 Rc4 Na2 Ra4 N2b4 Qe7 Rc8 Qd8 Ra8 Be2+
4K3/Pb6/Qp2qq2/Npn3k1/Qp1nB2q/Q3N1rR/Q2bp2r/b2r3R w - - 0 1 legal: proof: e4 g5 b4 f5 c4 fxe4 h4 gxh4 c5 a5 c6 dxc6 b5 cxb5 Ba3 Kf7 Bd6 Ke8 Bb4 axb4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 a4 c6 d4 e3 g4 e6 a5 e2 a6 e1Q d5 h3 d6 h2 d7 h4 a7 h3 Qa4 Ne7 Na3 Bg7 Nf3 Nf5 Nd4 Na6 Bd3 Nc5 Ndc2 Nd4 Be4 b6 Nc4 Qf8 Ra3 Bb7 d8Q+ Qe7 Qd6 Rag8 Na5 Rh4 Qc7 Qf1 Qc8 e5+ Kg3 Qd6 f4 Qe6 f5 Kg5 f6 Rhh8 f7 Qff6 f8Q Rh6 Rc1 h1R Ne3 h2 Rb1 Rd1 Qe7 Ba8 Qa6 h1Q Rd3 Rh2 Qd8 Kh6 g5+ Kh5 g6 Bb7 Qd5 Kg5 Qda2 Bh8 Q2a3 Bg7 Bf3 Bh8 g7 e4 Nf1 e3 Be4 e2 Ne3 Nd7 Ra1 c5 Rc1 c4 Rb3 Rd8 g8Q+ Bg7 Rd3 c3 Ra1 c2 Qf7 Qe8 Qfa2 c1B Rc3 Bd2 Rac1 Kh6 Kg4 Qee6+ Bf5 Nc2 Nf1 Qhe4+ Kg3 Qfe7 Rf3 Rg8 Ne3 Rf1 Rd1 Q4e5+ Kg4 Nc5 Rc1 Qc3 Kf4 Qd4+ Be4 Qdd8 Re1 Ba1 Rd1 Nd4 Re1 Rff2 Rh1 Rfg2 Rg3 Rg1 Rf3 Rd1 Rg3 Qc6 Rh3+ Qh4+ Ke5 Rg3 Bc2 Qcc8 Be4 Qh8+ Kd6 Kg5 Ke7 Qcg4 Kf7 Qf6+ Ke8 Qge6+
1br3B1/3k3r/1Bq1p1K1/P2n1N1b/1p1Np2N/2Qn1pq1/b1QN1b2/1R2q3 w - - 0 1 legal: proof: f4 c5 g4 a5 e4 h5 d4 hxg4 a4 cxd4 b4 axb4 Ra3 f5 Rc3 fxe4 Rf3 gxf3 Kf2 d5 Kg3 g5 c4 b5 h4 d3 a5 g4 h5 d2 Kh4 d4 Kg5 b3 h6 b4 f5 g3 f6 g2 f7+ Kd7 h7 b2 c5 d3 Qb3 d1Q Qa3 d2 Ba6 Qb6 Qb3 Qe1 Bc4 d1Q Be3 Qdd6 Qc2 Nc6 Ne2 g1B Nd4 Nf6 Nd2 b1B Kg6 Ba2 Bb3 Bg7 f8Q Ra7 Bg8 Nd5+ Qf6 Bf2 Rf1 Bh6 Rh1 Bf4 Rf1 Qe2 Rb1 Qdb8 Qg7 Qe1 Qe5 Ke8 Qf6 Bg4 Qe5 e6 Qf6 Nd8 c6 Nf7 c7 Kd7 c8N Qc6 Nd6 Ra8 N6f5 Ne5+ Kg7 Nd3 Kg6 B4g3 Qe5 Nc3 Qc5 Nd5 Q5c3 Qbc7 Bf7 Rhc8 h8N Ra7 Bg8 Qb8 Kf7 Qf4 Ng6 Qg5 Ngh4 Bb8 Ra1 Qf4 Kg6 Qg3 Rc1 Kd8 Rb1 Rh7 Nb5 Ke8 Bb6 Kd7 Nbd4 Bh5+
NBB3B1/b1nQp3/2pr2P1/1p2k2p/2q1q3/1QR1R1q1/5br1/1B1b1Knb w - - 0 1 legal: proof: c4 g5 e4 f5 d4 fxe4 b4 a6 h4 gxh4 b5 axb5 d5 Ra7 c5 Ra3 Nd2 Ra8 Nc4 c6 Na5 cxd5 c6 d4 c7 Kf7 Nc6 bxc6 Qc2 Ke8 Qe2 Kf7 Qd1 Ke8 g4 Kf7 a4 Ke6 f4 d5 a5 h5 f5+ Ke5 g5 e3 a6 d3 g6 d4 a7 d2+ Ke2 d3+ Kf3 e2 Kg2 e1B f6 h3+ Kh2 Qd4 f7 Nh6 Qb3 d1Q Ba3 d2 Ne2 Qc2 Nf4 Qce4 Bc4 d1Q Ne6 Qdg4 Rc1 Na6 Rc3 Bg7 f8Q Nf7 Qe8 Ng5 Qd7 Bf2 Re1 Rd8 Ree3 Nf3+ Kh1 h2 Bd6+ Kf6 Bd3 Qg3 Bb1 Qc4 Be5+ Kf5 Bf4 Bd4 Bd6 Rb8 a8B Ba7 Bb7 Ra8 Be5 Qh4 Kg2 Qf4 Red3 h1B+ Kf1 Ng1 Bd6 Qg3 Bf4 Qcd4 Re3 Qa4 Qd4 Bd7 c8B Qc4+ Qd3 Kf6 Nc7 Bg4 Be6 Bd1 Bg8 Rd6 Be5+ Kf5 Bf4 Rad8 Na8 Nc7 Bc8+ Kf6 Qe2 Rd2 Qd3 Re2 Qd2 Rd6 Qd5 Qgf3 Bh2 Qg3 Qd3 Ke5 Qd2 Rf6 Qd7 Rd6 Qe6+ Kd4 Qb2 Qg5 Rh3 Bg3 Bc2 Rg2+ Bd3 Nd5 Qb4 Bf2 Re3 Rd7 Bb8 Nc7 Qb3 Rd6 Qg4 Ke5 Qd7 Qa4 Bc2 Qg3 Bb1 Qc4+
1qB2K2/2P4B/R1n1r1Q1/p2n2B1/2b2r1b/1B1pp1bR/1pq1N3/kn3Q1n w - - 0 1 legal: proof: b4 f5 d4 g5 e4 fxe4 h4 gxh4 a4 c5 a5 cxd4 b5 Bh6 b6 Bf8 Nd2 Kf7 Nc4 axb6 a6 Ke8 Na5 bxa5 Ke2 Kf7 f4 Kf6 g4 h5 c4 d5 c5 e5 c6 b5 a7 d3+ Ke3 b4 c7 b3 f5 d4+ Kf2 h3 Kg3 d2 Kh4 e3 Ra3 h2 Qf3 d1N Qc6+ Be6 Bh3 e4 g5+ Ke5 f6 e2 g6 e1B+ Kg5 d3 g7 Kd4 Kg6 h4 f7 e3 Bg4 h3 Qd7+ Kc3 Qe8 Rh4 Qd7 Be7 f8Q Bc4 Qde8 Bg3 Qf1 Nf6 g8B Nd5 Kf7 Nc6 Bh7 Qb8 Bc8 Rf4+ Kg7 Bf6+ Kf8 Bfh4+ Qf7 Kc2 Bb2 Kb1 Bf6 b2 Rb3 Ka2 Rb4 N1c3 Rb6 Nb1 Ra6 Ka1 Qg7 Bg5 Ne2 B5h4 Rg1 h1Q Qg6 Qh2 Rh1 Re4 Bg5 Re6 Ng1 Qc2 Ne2 Qb5 Rh2 Rb8 Rh1 h2 a8B Rb6 Bab7 Re4 Be6 Rf4+ Bf7 Qbb3 Bc8 Qb5 Rg1 h1N Rg2 Ncb4 Rh2 Re6 Rh3 Qb6 Qc1 Qb8 Qf1 Rd4 Be8 Rg4 Ba4 Nc6 Bb3 Rf4+
1B3N1b/nkb3pr/p7/R2b1Q2/bp2KQn1/Q2PBNq1/2prQ3/2n4n w - - 0 1 illegal: Other
K1q2rbn/3bb3/2NPBp2/pk1Bpp2/2R1qQQ1/R7/2p1nQ2/rq4Q1 w - - 0 1 illegal: No possible last move, all moves rejected
2kb1N1r/2pnp1p1/2P2Rrp/2Qn4/8/rp2BQRK/4b1RR/1bN2b1q w - - 0 1 illegal: Other
1k3b1n/bppp1n1r/n2pN2N/pr1B2P1/N5R1/4Rb2/Q3q3/Qn4NK w - - 0 1 illegal: Other
b2nrB2/q1p3NR/5bp1/2n1n3/pBrp1p2/B1Bpk3/1Q3b1P/2RK3Q w - - 0 1 illegal: No proof kernel
r2B2r1/1kP1BB2/2pq2R1/p4q2/2b3N1/pnp1pqQ1/p4Q2/nN1B1Kb1 w - - 0 1 illegal: Other
2q1r2K/B3r1R1/2br1B2/1b1nr1nk/2b1p3/3B1PB1/N2R3r/2n1Nn1B w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 h5 Bg5 fxe6 Bd2 e5 Bc1 e4 g4 hxg4 a3 b5 Ke2 e6 Nf3 b3 Kd2 b4 Ng1 b2 Ke2 b3 Ke1 Bb4+ axb4 Ra2 Bd2 Ra6 Bc1 Ra8 Ke2 Kf7 c4 Kg6 h4 d5 b5 e5 c5 d3+ Ke3 d4+ Kd2 g3 b6 e3+ Ke1 g2 f3 d2+ Ke2 Bb7 Kd3 e2 c6 e1R c7 Nd7 c8B Nc5+ Kc4 d3 Ra3 Ne4 Rh2 Ne7 Bh3 Nd5 Nc3 b1B Be2 b2 Bf1 Kh5 Qe2 d1N Be3 g5 Ra7 g4 Bf2 d2 Bg3 Ng5 Na2 Bc6 b7 Qc8 b8B N1e3+ Kc5 d1B Kd6 Bda4 Rg7 Bd3 Ba7 e4 Ke5 b1R Qc2 Rb5 Ne2 g1N Nec1 Rd8 Rd2 Rd1 Bhg2 Ne2 Bh1 Bc4 Nd3 Nc1 Ne1 Rd7 Be2 Nf1 Bd3 Rc5 Qc3 Bab5 Qa5 Rd6 Qd8 Rb8 Qe7 Rb7 Qe6 Re7 Kf5 Nb6+ Kf6 Rd8 Qd7 Rce5 Qe8+ Nf7 Rg6 Nd5+ Kg7 Ng5+ Kh8 Rd6 Bgf2 g3 Rg7+ Kh6 h5 g2 Bg3 g1R Nc3 Rg2 Na2 Ne6 Rf7 Kg5 h6 Rh2 h7 Kh6 Rg7 Ng5 Kg8 Rd8 h8B Rd6 Rf7 Rd8 Bf6 Kh5 Rg7+ Rf7 Rf2 Nf4 Bb1 R1d6 Bd3 Nd5 Rc2 Nb3 Kh8 Nc1 Qf8 Rc7 Rd2 Rce7 Qe8+ Rdxe8+
1nb1B1Rb/RNb3r1/p1n3R1/np1k1B1N/P7/pr2Rb2/K3q3/5nR1 w - - 0 1 legal: proof: f4 d5 b4 e5 h4 c5 a4 cxb4 c4 g5 cxd5 gxh4 Ba3 bxa3 Qb3 exf4 e4 Nc6 Qg3 Nb8 Qe3 fxe3 Kd1 Ke7 Kc1 Kd6 d4 f5 g4 h5 g5 b5 g6 a6 g7 h3 Bd3 h2 Nd2 e2 Kb1 e1B Bc2 h4 Ne2 h3 Ng3 f4 Nb3 f3 Rg1 h1B Nc5 h2 Nh5 f2 Ka2 Ba5 Rae1 f1N Re3 Ne7 g8R Nec6 R8g6+ Qf6 Bb1 Bg7 Bd3 Bf3 e5+ Kc7 e6 Kd6 e7 h1N e8B Nd2 Bb1 Nc4 Bf5 Qe6 Nb7+ Kc7 R1g2 Ng3 Rg1 Ra7 d6+ Kb6 d5 Nf1 d7 Rf8 d8R Bh8 Nd6 Kc5 Rd7 Bc7 Nb7+ Kd4 d6 Kd5 Re7 N4a5 d7 Qe4 Reg7 Rf6 d8R+ Rd6 Ka1 Qd3 Rd7 Qe2 Rf7 Rf6 Rg8 Re6+ Kb1 Re4 Rfg7 Rb4+ Ka1 Rb2 Rh7 Rb3+ Rhg7 Qd3 Ka2 Qe2+ Bc2 Ng3 Nd8 Bd6 Rc7 Nf1 Rh7 Rf7 Rhg7 Rf8 Ra7 Bc7 Nb7 Rf6 R1g3 Rf7 Rg1 Qd1 Bb1 Rg7 Bf5 Qe2+
2b3R1/2k5/1r1R2KB/1Br1qN2/r1BqrN1B/bPnq3n/1bb5/1Br2r2 w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Bh3 f3 Qd4 g3 Bf1 cxd6 Qg4 d5 Qh3 d4 Qg2 fxg2 Kd2 g5 Kd3 a5 Ke4 d5+ Ke5 Kd7 Kf5 d3 h4 g4 e4 d4 c4 d2 c5 d1B b3 a3 e5 a2 e6+ Kc7 c6 d3 h5 d2 h6 a4 h7 a3 Nc3 Ne7+ Kg5 f5 Ne4 f4 Rh5 f3 Nh3 g1R Be2 f2 Rh6 f1R Bb5 g2 Bd3 g3 Nc3 Bc2 Kh5 d1R Bd2 Ra4 Ne4 Nd5 e7 Rc1 e8B Na6 Be1 Nc3 Kg6 Nc5 Bd7 Ne6 Kh5 Ng5 Rb1 a1B Kg6 a2 Nd6 Bb2 Nf4 a1Q Nf5 Nh3 Bc4 Bfa3 Bf2 Rf8 h8B Re8 Bg7 Re4 Rh8 Rh1 Bh6 g1Q Rg8 g2 Bh4 Qf2 Be8 Qd3 Bd7 Qfd4 Be8 Rce1 Rd1 Re5 Bd7 Rc5 Rd2 Re4 Rd1 Kb6 c7 Qe5 Bdb5 g1R+ Kh7 Rg6 Rd2 Ba6 c8B Kc7 Rd1 Rgc6 B8e6 Rb6 Kg6 Bc8 Rd2 Qd7 Rd6 Qd1 Bf7 Qdd4 Bfd5 Rc1 Bd3 Rhf1 Bd5c4 Bd1 Bb1 Bc2 Rf6 Qd3 Re6 Q7d5 Rd6 Qd5d4
q1R5/B2N1k2/qR2n2b/1R2bpb1/nBb1r1PN/R1bq2r1/2b4b/5R1K w - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 f4 fxe4 f5 h5 f6 a5 g3 axb4 Nh3 h4 Bg2 g6 Ng1 h3 Qf3 hxg2 Qf5 gxf5 Kf2 c5 a4 e5 d4 b5 h4 e3+ Kf3 c3 h5 c2 g4 e2 d5 e1Q d6 b3 d7+ Kf7 a5 b4 a6 e4+ Kf4 b2 a7 b3 h6 c4 h7 c3 Ra4 e3 Kf3 e2 Ra2 Nc6 Rh2 Ba6 Rh1 Bc4 Bf4 c1B Bb8 c2 Na3 b1Q Be5 b2 Ra1 Bg7 Bf4 Qf1+ Kg3 e1B+ Kh2 Nd4 Nf3 Bc3 Nh4 Ne7 Bb8 Re8 h8R Ne6 Rh6 Bg5 Rg6 Qd3 Rf1 g1B+ Kh1 Qa2 Rab1 c1B Rh6 Qc8 d8R Qa6 Rc8 Nd5 Rg6 Bh2 Rh6 Bb3 Nc4 Nb6 Rg6 Na4 Nb6 Bc4 Nd7 Bf8 Rh6 Bfd6 Rg6 Bde5 Rh6 Kg8 f7+ Kg7 f8B+ Kf7 Rg6 Bh6 Bc5 Bcg5 Bbd6 Rb8 a8R Rb3 Ba7 Re7 Bb4 Ra3 Ra1 b1B Rab8 Bc2 Rb6 Rb3 Rb5 Qa3 Ra2 Re8 Ba5 Qf8 Bb4 Qh8 Ra3 Re7 Rc6 Qa8 Rg8 Re8 Rh8 Re7 Rc8 Rb1 Rh8 Nf4 Nf3 Bed4 Rcb6 Re4 Rg1 Ne6 Rc8 Bde5 Nh4 Rd1 Re1 Rd2 Rb1 Rg2 Rf1 Rg3
rBn2n1R/3k4/qqnb1bR1/1R4r1/2rN1p2/RbN1K1B1/q4PR1/5qb1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 a6 b5 axb5 h5 bxc4 Qg4 c3 Qe2 Nh6 Qd1 Ng8 g4 Nf6 Bh3 Be6 Qf3 Bf5 Qg3 Bg6 Qh4 gxh4 g5 Bf5 g6 Bg4 g7 Bc8 Bf5 Ng8 Bg6 hxg6 Ke2 e5 d4 c5 a4 b5 a5 f5 d5 c2 a6 c4 a7 h3 d6 b4 h6 g5 h7 c3 Bf4 c1Q Nd2 g4 Ra5 c2 Ndf3 g3 Rc5 g2 Rh2 b3 Rh1 e3 Nh4 b2 Rh2 b1Q Kf3 e2 Ng6 e1N+ Ke2 e4 Rc3 e3 Rc6 Nd3 Bg3 Qa3 Rc5 c1R Nf3 g1B Nfh4 Rc4 Rb5 Ne5 Rg2 h2 Rb7 h1Q Nf4 Qdb6 Bh2 Be6 Nd3 Nec6 Nf4 Nd7 Nf3 Nge7 g8R Nc8 Nd5 Qaa6 R8g6 Rg8 h8R Qba2+ Kd3 e2 Nc3 e1B Bg3 Bg7 Nd4 Nf8 Ke3 Bf6 d7+ Ke7 d8B+ Ke8 Rb8 Kd7 Bdc7 Bd2+ Kd3 Bf4 Rb7 Bd6 Bb8+ Qc7 Rb5 Qcb6 Ke3 Qh3 Rgh6 Rg5 Rg6 Rc5 Rh2 Qf1 Rg2 Bb3 Bc7 Rb8 a8R Rc4 Ra7 Ra8 Bb8+ Qab7 Ra4 Q7a6 Ra3 f4+
4rK1R/1b3P2/3BbNNn/q7/2qBb1n1/1r1prBRB/4q1rb/1B1kq3 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Qd3 b5 Qf3 b4 Qa3 bxa3 Kd2 Kf7 c4 Kf6 f4 Kf5 h4 e5 c5 d5 c6 g5 a5 b5 h5 e3+ Kd3 g3 h6 Kg4 c7 g2 h7 a2 a6 e4+ Kc2 e2 Kb3 e1R a7 e3 f5 b4 f6 d3 f7 d2 Bb5 d1B+ Kb2 e2 Nh3 Kf3 Bd2 g1R Be3 d4 Bd3 b3 Bg6 g4 Bh6 g3 Be3 g2 Nc3 Bd6 Bf5 Nc6 Nb1 Ne5 Bh6 Rb8 a8B+ Bb7 c8B Qe7 Na3 Ng4 Nc2 Bh2 Bc1 N8h6 Ne3 Re8 h8B Qc7 Ka3 b2 Kb4 b1B Kb5 Re7 Nf4 B1e4 Ba3 Bb3 Ng6 Be6 Nd5 Qc4+ Kb6 Kf2 Nf6 Kf3 Rc1 a1Q Bd6 Ke3 Rc3+ Kd2 Rg3 Kd1 Bd7 Qaa4 Bc5 Qa1 Kc7 Qa5+ Kd6 d3 Ba4+ Kd2 Bc2 Kc1 Bb1 Kd1 Nh7 Rgf1 Ba1 g1Q Bad4 Qe3 Nf6 Rf3 Ba3 Rg1 Bb4 e1Q Ba3 Ne5 Bh3 Q3e2 Bb4 Re3 Bbc5 Ba6 Ba3 Rb3 Bb4 B4f5 Bf3 Be4 Bbc5 Rg2 Ba3 Ra7 Bac5 Bab7 Ke7 Neg4 Bd6 Ba8+ Ke8 Re7+ Kf8 Bab7 Ba3 Ng8 Bac5 Bg1 Bd6 Rh2 Bf1 Rf2 Rhh3 Bh2 Rh7 N8h6 Bh3 Rg2 Rh8 Re8+
BB2nR2/nbrNB1n1/7K/1bb3pq/3R2b1/3P1B1N/1p3Brn/1k1r2n1 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 axb4 g5 d5 g6 dxc4 Qb3 cxb3 Bg2 hxg6 Bh3 g5 Bf1 g4 Ke2 Kf7 Ke3 Kf6 Kf4 b5 a4 c5 h4 g5+ Ke3 Ke5 f3 c4 a5 g3 h5 g2 h6 c3 h7 c2 a6 b2 a7 b3 Rh3 b4 Be2 Qd5 Ra3 Nc6 Rh6 Nf6 Ra5 Bb7 Rg6 Ne8 Rg8 Rc8 a8B Rc7 Rc5 Na7 Nh3 g1N Rc3 Qf7 Na3 b1B Rc4 b2 Nf2 b3 Bd1 e6 Nh3 Bc5+ Rd4 Kf5 f4 e5 Kf2 e3+ Kg3 e4 Nb5 e2 Na3 e1N Rg6 e3 Be2 Nd3 Bh5 e2 Nc4 e1N Rg7 Nef3 Rg8 Nh2 Bf3 Ba2 Rf8 b1B Ne5 b2 Nd7 Bc4 Nf2 Bb5 Nh3 Rg8 h8B Ba2 Ne5 Be6 Nd7 Rg6 Be5 Rh6 Nb8 Bec8 Nd7 Re6 Bd6 Re2 Be5 Nf2 Bd6 Ng7 d3 Nfg4 Be3 c1R Bf2 Rd1 Be5 Nf6 Bd6 Nfe8 Be5 Ke6 f5+ Ke7 f6+ Ke6 Re4 Kd5 Bf4 Nf1+ Kg4 Rc2 Re3+ Kd4 Re4+ Kc3 Rd4 Kb3 Be5 Ka2 Bd6 Qc4 f7 Kb1 Bdg3 Ne6 Kh5 Nh2 Kh6 N6g7 Ne5 Bg4 Nd7 Rc8 Bb8 Rc7 Rh8 Qd5 f8B Qf7 Be7 Re2 Rf8 Red2 Bh4 Rg2 Bf2 Qh5#
2b4k/r1BBBR1n/p5Kb/B2bb3/1P1r1b2/2Nn2Bq/pr2r2N/q6R w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 h5 g4 hxg4 e4 b5 e5 bxa4 Qb3 cxb3 e6 fxe6 Ra2 e5 Ra1 e4 Ke2 Kf7 Ke3 e5 h4 g5 d4 Kg7 f4 c5 d5 a3 d6 c4 h5 c3 f5 c2 d7 b2 Rh4 a2 Bd3 a6 Bd2 c1B Bc4 g3 Be2 g2 Bf3 g4 Nh3 g1R Bd1 g3 Rf4 g2 Bf3 Nf6 Bg4 Nh7 Be2 Qh4 d8B Rd1 Ba5 g1Q+ Nf2 Ra7 Bf3 Nd7 Nc3 b1B Bh1 Nc5 Bg2 Nd3 f6+ Kg8 h6 Qh3+ Rf3 Bc2 Bf1 Bb3 Rb1 Qg7 Ng4 Bd5 Nh2 Bb2 Be1 Ba1 Ke2 e3 Bg3 e4 Bg2 Bd6 Rf2 Bf4 f7+ Kf8 Bf3 Bb2 Bg4 Bc1 Na4 Qa1 Bd7 Bb2 Rf1 Bbe5 Nc3 Rg8 Rh1 Rg4 Rb2 Rb1 Rc2 Rb2 Rd2 Nf6 h7 Kg7 h8B+ Kh7 f8B Kg8 Bf2 Nh7 Bg3 Bh6 Bf6 Rf4 Bfd8 Kh8 Bdc7 Rh4 Be7 Bef4 Rb1 Be5 Rc2 Rf4 Kd1 e2+ Kd2 e1B+ Ke2 Bd2 Rh1 e3 Rcc1 Bb3 Rcf1 Rd4 Kf3 e2 Rf2 Bdf4 Rff1 Qg2+ Kg4 e1R Kh5 Ree2 Kg6 Qh3 Rf3 Bd5 Rf2 Bc1 Rf7 Bcf4
1nq2N1N/1rn2K2/R4p2/Ppr5/1Bn2b2/3r1RBb/kn1p2B1/2BnnB2 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 e4 cxd4 b4 fxe4 f5 axb4 f6 h5 Qf3 hxg4 Qf2 Kf7 Qh4 Ke6 f7 Kd6 Qf6+ exf6 Kd1 Ke6 Ke1 Ke7 Ke2 Kd6 c4 Kc5 a4 d5 h4 b5 h5 g5 h6 e3 Kd3 e2 a5 e1N+ Ke2 g3 h7 d3+ Ke3 d4+ Ke4 b3 Bd2 b2 Bc3 g4 Bd2 g2 Rh3 g3 Nc3 Kb4 c5 Kb3 c6 b1N c7 Ne7 Na4 Ra7 Nb6 Bh6 f8B Nd5 Bc1 d2 Ne2 g1N Nd7 d1N Kf5 d3 Kg6 d2 Kf7 Bf4 Bd6 Nb2 Nf8 Rb7 Ra2 Bd7 c8B Nc7 Be5 Rg8 h8B Rg5 Bg7 Na3 Rh8 Nac4 Ra3+ Kc2 Rc3+ Kb1 Rf3 Bh3 Bf5+ Ka2 Be4 g2 Bc6 Bg3 Nf4 Ne2 N4g6 g1R Bd5 Bh2 Bg3 Qc8 Rh7 Rh5 Nh8 Nc3 Bh6 Rg2 Bhf4 Rg5 Bd6 Ncd1 Bb4 Rf2 Bc6 Rc5 Rc3 Qe6+ Kg6 Rb6 Bd6 Nca6 Bcg2 Rf3 Ra7 Qc8 Kf7 Nc7 Ra6 Rb7 Be5 Bg1 Bh2 Be3 Bg3 Bf4 Rb3 Rd3 Rc3 Rd6 Rf3 Rd3
nNnN4/N4qrn/2B1Bb2/2P1k3/2b3pr/K4q1B/3R1Rpq/1N1q3q w - - 0 1 legal: proof: d4 b5 h4 e5 g4 c5 f4 cxd4 a4 exf4 axb5 g5 Qd3 gxh4 Qh3 f6 g5 f5 Qg4 fxg4 Be3 Na6 Bf2 Nb8 Bg3 fxg3 Kd1 Kf7 Kc1 Ke6 c4 h5 b4 a5 Kb2 d5 e4 a4 g6 a3+ Kb3 d3 g7 h3 b6 d4 b5 h2 c5 h4 b7 d2 b6 d1Q+ Ka2 d3 e5 h3 Nc3 d2 Rb1 Qd5+ Rb3 Na6 b8N Q1f3 b7 d1Q Nb5 Ne7 Be2 Nc7 Nc3 Rh4 Nb5 Ra7 Bf1 Na8 g8B+ Kf5 e6 Ke5 Bc4 Bg7 Rd3 Bf6 Ne2 Qd2+ Kb3 a2 Rf1 h1Q Rf2 a1Q Nec3 h2 Nb1 Qdd1+ Kb4 Qa2 Rdd2 Bd7 Bd3 Nc8 e7 Qf7 e8B Be6 Bf1 Bc4 Bh3 Qac2 Bc6 Qch7 Na6 g2 b8N Qhe4 Be8 Qef4 Nac7 Qh5 Ra2 Q3e4 Nca6 Rg7 Rad2 Qhf1 Na7 h1N Nc7 Qh2 Rf3 Ng3 Ne6 Qfh1 Rff2 Qef3 Nd8 Ne4 Be6 Ng5 B8d7 Qf7 Bc6 Qd5 Ka3 Nh7 Ba4 Qe4 Bc6 Qef3+
2rbnNkB/4n3/4n1bq/6Bb/rBp3K1/1RPn2RB/1N2n2b/1bNq4 w - - 0 1 illegal: No possible last move
2kqB3/1N2R2n/2Pr1qRR/n1Kbq3/1Rb2bb1/4r1rN/nppB4/7N w - - 0 1 legal: proof: c4 c5 b4 e5 d4 cxd4 h4 a5 f4 exf4 h5 axb4 h6 gxh6 Qa4 h5 Qc2 h4 Qc3 bxc3 Kf2 f5 e4 d5 a4 Kd7 g4 b5 e5 h5 g5 f3 c5 d3 Ke3 h3 Kd4 h2 a5 h4 g6 f2 g7 d2 a6 d1R+ Bd3 f1B a7 f4 Ra4 b4 Nh3 c2 Bb2 f3 Bc3 f2 Ng5 h3 Ba1 b3 Rg1 h1B Bc3 h2 Ra5 b2 Na3 Nf6 g8N Bh6 Rg2 Nh7 Ne7 Rg8 Nh3 Bf4 Ra6 Rg3 e6+ Kc7 Bd2 Nc6+ Kc3 d4+ Kc4 Re1 Nf5 Ree3 e7 Na5+ Kb4 Bd7 e8R Kc8 Bb5 Bc4 Re7 f1Q Rh6 d3 Bc6 Rb8+ Nb5 Rb6 Rg1 Bde6 Be8 Rd6 c6 Bhd5 Kc5 h1Q Rg2 Qh2 Rg1 Rg5 Ng3 Bg4 Nh1 Rg7 N3f2 Qh5 Nh3 Qe5 Rg2 Qf2 Rg1 Qh4 Rg2 Qhf6 Rg3 Qc7 a8R+ Qb8 Ra6 Qc7 Rb6 Qd8 Na3 Rg5 Rb4 Rg7 Nb5 Rg6 Bc1 d2 Rg1 d1N Bd2 Nc3 Rg3 Rd7 Rg1 Na2 Nd6+ Kc7 Nb7 Kc8 Rg3 Rd6 Rg2 Bd1 Rg1 Rgg3 Rg2 Rgf3 Rg4 Rg3 Rgg6 Bg4
4BN2/qpqnk1nr/1pRb3q/1qr3r1/1b2P3/1B4B1/3nR1bN/3BN1K1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 b5 e5 b6 axb6 c4 g5 f4 exf4 h4 gxh4 Qb3 Be7 Qa3 Bf8 Qc3 dxc3 Kf2 f5 e4 d5 g4 h5 a4 f3 a5 h3 a6 f4 a7 h2 c5 d4 g5 c2 c6 d3 c7 h4 g6 d2 g7 d1Q Nh3 Nh6 g8B Bd6 Bf7+ Ke7 Bg8 Rh7 Bb2 c1B Ra6 Qa4 Be5 Bd2 Bb2 Nf5 Na3 Ng7 Ng5 h3 Be2 Nd7 Bb3 B2b4 Rc1 h1Q Bed1 h2 Rc6 Rb8 a8N Rh5 Nh7 Rc5 Be5 Qb5 Ra4 Qa5 Nf8 Qa7 Bdc2 Qc1 Bd1 h1R Nc2 Rh7 Ne1 Qe3+ Kf1 f2 Ra2 Qd2 Kg2 f1N+ Kg1 f3 Bg3 Qh6 Re2 Nd2 Bf7 Nf6 Bfb3 Bh3 c8B Nd7 Nc7 Bg2 Ne8 Qc7 Nf6 Rg5 Ng4 Rc5 Nh2 Ra8 Kf2 Rb8 Bf7 Ra8 Be8 Rg5 Ke3 f2 Bb3 f1Q Bd1 Nb8 Be6 Nd7 Bc4 Qf5 Bcb3 Qb5 Kf2 Rc8 Kg1 Qcb8 Rc4 Rcc5 Rc3 Qc7 Rc1 Rcd5 Rc6 Rc5
b5rn/1b3NN1/nn1N1R1B/k1Pn3R/pRB5/1rr3np/K2n3b/2R3q1 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 f4 b5 h4 bxa4 f5 gxh4 f6 exf6 Qd2 f5 Qd3 f4 Qb3 axb3 Kd2 h5 c4 d5 g4 Kd7 e4 Kc6 e5 Kb6 e6 f5 e7 a5 e8R d3 Kc3 b2 Kb3 a4+ Ka2 h3 g5 h4 g6 h2 g7 f3 b5 f2 c5+ Ka5 b6 d4 b7 d2 Ka3 d1N Be2 f1N Bh5 d3 Bg6 d2 Ne2 f4 Bc2 f3 Rg1 h1B Rg2 f2 Re5 Nh6 g8R Nc3 Bf5 d1N Ng3 Qg5 Re3 Bd6 Re5 Nde3 Rf8 Ned5 Nh5 Nf7 Ng7 Ng3 Nd2 f1N Ne4 b1R Rb2 Nb6 Be6 Na6 b8N Ncd5 Nd7 Nd2 Ka2 Bb7 Rb4 Rb3 Rb1 Qe3 Rh5 Qg1 Ne5 h3 Ra1 Rb8 Rb1 Bc7 Nd6 Rg8 Ra1 Nh8 Rf6 Rc3 Nef7 Nb1 Bf4 Nd2 Rc1 Ba8 Bf5 Ngf1 Be3 Ne7 Nb5 Nbc4 Rb2 Bh2 Bh6 Ng3 Be6 Rb6 Rbb1 Bhb7 Nbd6 Rb4 Rb2 Nb6 Bc4 Rb5 Rbc2 Rb1 Rb2 Ned5 Rb4 Rbb3
b2Rnb2/7r/1N1NB2B/1B1RbrPb/4n3/2kp1rp1/3R2R1/Kb3qnn w - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 Qg4 hxg4 e6 fxe6 Ba3 e5 Bc1 e4 Kd2 Kf7 c4 Ke6 Kc2 Ke5 Kb2 b5 a4 d5 h4 f3 a5 g3 c5 f2 a6 b3 a7 d3 c6 Kd4 h5 e5 c7 e3 h6 d2 h7 e2 Nc3 e1N Bd3 f1R Na4 d1N+ Kb1 b2 Be2 e4 Nb6 e3 Bf3 b4 Na4 e2 Ra2 Nf6 Bh5 Nbd7 Bg6 Nf2 Rh3 N6e4 Bd2 Bb7 c8R Ndf6 Rh4 Nf3+ Rc1 e1B Nh3 Ng1 Rd1 Nh1 Bf5 Rf3 Nb6 Ne8 Nf2 Qf6 Be6 Qf5 Be3+ Kc3 Bc5 d4 Rh2 Rb8 Be7 Ba8 Rg2 Rd8 Ra5 Rd5 Rd2 d3 Ka2 b1B+ Ka1 b3 Ba3 Re5 Rd5 Ba2 Be7 Qh3 Bf6 Qf5 Bg7 Qf6 Bh6 Ref5 Ng4 Bf2 Ne5 Bd4 Nec4 Be5 Nd6 Rg8 h8R Rg7 Bd7 Rh7 Bc8 Bb1 Rg8 Bc2 Be6 Bd1 Rh8 Re3 Rg8 Bh5 Rh8 Ref3 Rg8 Bb7 a8B Bc6 Bb7 Qf7 Ba6 Ba8 Bb5 b2+ Ka2 b1B+ Ka1 Qe7 Rg7 Qc7 Rd7 Qc5 Rd8 Qf2 Bg7 Qe1 Bh6 Qf1
2q4b/qrN1Np2/RbrR1Pn1/N2r1K2/nR5B/1b1r1prB/kr4R1/8 w - - 0 1 illegal: No possible last move
NkB5/p1q1BRPR/5K2/1N1q1p2/r3BNq1/3n3n/1q6/rqB1bbrq w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 f4 b5 h4 bxa4 f5 gxh4 f6 exf6 Qd2 f5 Qd3 f4 Qb3 axb3 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kh5 f5 e4 d3 c4 f3 g4 b2 b5 d4 c5 f2 e5 d2 c6 d1R g5 h3 g6 h2 e6 d3 e7 d2 Kg5 h5 Ne2 h4 Nec3 h3 Ra3 Rh4 Ra6 Ra4 Bd3 f1Q Ra5 Qg2+ Kh5 Nh6 Ne2 Na6 e8N+ Kb8 b6 Qc7 b7 Ng4 Kg5 Bb4 Rc5 Nf2+ Kf6 Ba5 Ng7 Nb4 Nbc3 b1Q Be4 Nbd3 Nf4 Qg4 Rb5 Qb2 Ne8 Rf1 Rd5 d1Q Rd7 Qdc2 Re7 Qcb1 Rf7 Rg1 g7 Be6 Nd6 Bc4 Nb5 Ra1 Nd4 Ra4 Ncd5 Be1 Nb6 Rg3 Rg1 h1Q Rf1 Qhf3 Rh1 Rg1 Rh2 Ne5 Nb5 Bf1 Rg2 h2 Rg3 h1Q Rh3 Qbc3 Rh7 Qcb2 Bd2 Qd8+ Re7 Qbd3 Bd5 Nh3 Be3 Qfd1 Be4 Q3d5 Bd2 Q8d7 Rf7 Ra1 Be3 Qdb1 Bc1 Nd3+ Nd4 Kc7 b8B+ Kd8 Bd6 Rb8 Be7+ Kc7 Na8+ Kc8 c7 Rb4 Bc5 Rba4 Be7 Kb7 c8B+ Kb8 Ne6 Qbe2 Nb5 Qc7 Nf4 Qeb2+
n3BN2/2N3k1/1q1n1q2/R1qqP1qp/1r3N2/1Kb2bRR/1nn1p1rB/6R1 w - - 0 1 illegal: No possible last move, all moves rejected
KN1RR3/n1qBp1N1/n6R/3qq3/1k1BB1rr/2b1P3/R3p1n1/rb2n2q w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 Bd2 axb4 Bc1 g5 e3 gxh4 a3 bxa3 Nf3 f5 Ng1 f4 Qe2 f3 Kd2 fxe2 Kd3 b5 Ke4 d5+ Ke5 Kd7 c4 Kc6 g4 Kc5 f4 h5 f5 b4 f6 d3 g5 b3 f7 d2 g6 d1Q g7 h3 Bd2 h4 Bc3 b2 Ra2 h2 Nh3 d4 Be1 d3 Rg1 h1N Rg5 d2 Ke4+ Kb4 c5 Ra4 c6 Bf5+ Ke5 Nf6 g8B Na6 c7 Nd5 c8R Nf2 Nc3 b1Q Ne4 Nf4 Rh5 Bg7+ Nf6 Ng2 f8R Qc7+ Kd5 Qa1 Rh6 Nd3 Nd7 Bc3 Ng5 h3 Nb8 h2 Be6 h1Q Rfe8 Rh7 Bg3 Nde1 Be5 Bb1 Bd7 Rg7 Ne6 Rg4 Bd4 Rh4 Rc2 a2 Rcd8 Qb2 Ng7 a1R Rd6 Qdc1 Re6 d1N Rh6 Qe5+ Kc6 Qa2 Kb7 Qc4 Re6 Qd2 Ra2 Qcc7+ Ka8 Qd3 Ba7 Qdd5+ Rc6 Kb5 Bb6 Rag4 Ba7 Kb4 Bd4 Qc4 Rh6 Qcd5+ Bc6 Bb2 Bb7 Nc3 Bc6 Nb5 Bb7 Nf4 Bh3 Na7 Bc6 Bc3 Bg2 Qc5 Bge4 Nfg2 Bd7 Qcd5+
b1K5/N2ppkN1/3P1bR1/B2bR1rq/3r3B/Nnrn2Rq/1r5q/5bR1 w - - 0 1 legal: proof: g4 g5 b4 f5 e4 fxe4 f4 a5 c3 axb4 f5 bxc3 Qf3 h6 Qf4 gxf4 g5 h5 Bh3 Rh6 Bg4 hxg4 Kf1 Rh4 Ke1 Rh8 Ke2 c5 a4 b5 d4 c4 h4 c2 g6 f3+ Ke3 b4 Kf4 b3 Ke5 e3 d5 b2 a5 f2 f6 f1B d6 c3 h5 g3 h6 e2 h7 e1Q+ Kd5 g2 a6 Qd2+ Kc5 Bb7 a7 Bg7 Ra2 Nc6 Rh3 Ne5 Ra1 Rb8 a8R Bd5 Ne2 g1R Na3 b1B Ra5 Rb2 Rg3 Nh6 Nd4 Nf5 Ndb5 Nd4 Na7 Qh2 Bd2 c1R f7+ Kf8 Rb5 c2 Ba5 Qe8 Kb6 Nd3 Kc7 Bf6 Rc5 Rg8 h8B Nb3 Rb5 Ba8 Re5 Ba2 Rb1 Rg2 Ra1 Rd2 Rb1 Bg5 Bf6 Bh4 Bg5 Kg7 f8N Qh3 Bf4 Bf6 Bg5 Qf7 Bh4 Qd5 Re4 Qh5 Re5 Qh2 Nh7 Rdd1 Ng5 Kf8 g7+ Ke8 Nf3 Kf7 Nd4 Na1 Rg6 Nf2 Rh6 Bfc4 Ne6 Rd4 Nc8 Ba6 Re4 B2d5 Na7 Nb3 Re5 Be2 Ra1 Nd3 Rb1 Re8 g8R Rg1 Rgg5 c1Q+ Nc5 Qd2 Rhg6 Qe3 Ne6 Qeh3 Ng7 Rgg4 Rg1 Bf1 Ref5 Rb8 Re5 Rb6 Kc8 Rb7 Rgf5 Rg5 Rf3 Rbb4 Rfg3 Rbc4+ Kb8 Nbc5+ Kc7 Rc3 Kc8 Nb3+
K2n1k1r/6pR/r1rR1p1R/1R3b1p/3n1BN1/1B1PqNB1/5b1b/1qn3q1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 h4 a5 g4 axb4 f4 Kd7 f5 f6 g5 fxg5 f6 gxh4 f7 h3 Qa4+ Ke6 Qa6+ Kd7 Qf6 exf6 Kf2 Ke7 Ke3 b5 Ke4 h5 a4 c5 e3 b3 a5 h2 a6 c3 a7 c4 Ra5 b4 Nf3 b2 Na3 b1R Rb5 b3 Nc2 Qe8 Kd5 b2 e4 Nh6 e5 Bf5 e6 Nc6 Ne3 c2 Ng4 c3 Bc4 Nd4 Bb3 Rc8 a8R Rc6 Rd1 h1Q Rd8 Qe1 d3 Qg3 Rd6 Qg1 Bf4 c1B Rd2 c2 Rg2 Be3 Bg3 c1N Bf4 Ra6 Kc5 Ra4 Kb6 Ra6+ Kb7 Bf2 Rg3 Rc6 Ka7 Qd7+ Ka8 Qc7 Nge5 Qb6 Rg6 Qc5 Ng4 Qe5 Bg3 Qe3 Ngh2 Ng4 Rh6 Ne5 Ng4 Ra1+ Kb8 Raa6 Kb7 Rab6+ Ka8 b1Q Bf4 Nd7 Bg3 Kd8 Rh7 Be7 f8B Ke8 Bf4 Nb8 Rh6 Bd8 e7 Bc7 Bg3 Rc4 Bf4 Nbc6 Bg3 Kf7 e8R Nd8 Be7 N8e6 Rc8 Rcc6 Bd8 Bb8 Bc7 Ke7 Rdd5 Nd8 Bcf4 Kf8 Rd6 Be4 Rg5 Bf5 Rh7 Be1 Rg6 Bf2 Rgh6 Bc7 Rb8 Qee1 Be5 Ke8 Re6+ Kf8 Bh4 Rb4 Bh2 Bcg3 Rd6 Qe3 Bg5 Bh4 Be5 Bhg3 Bh4 Bh2 Bf4 Rb7 Bhg3 Rb4 Rb6 Rb5 Ra6 Rb7 Ra5 Rbb6 Rb5 Ra6+
1q1bnN2/2N1p1rB/BK3k2/3P2Rr/BNrn3b/5b1p/3n1Rrp/3r2B1 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 fxe4 h6 gxh6 Qe2 h5 Qd3 h4 Qa3 bxa3 Ke2 Kf7 Ke3 b5 d4 h5 g4 c5 f4 a2 f5 c3 f6 b4 g5 b3 a5 h3 d5 c2 a6 c4 Kd4 c3 Kc5 h2 a7 e3 Kb5 b2 Bd3 h4 Bf1 h3 Kc5 e2 Nd2 b1N Ngf3 e1B Nb3 Nc6 Nbd4 Bh4 Be2 Rh5 Ne1 Bg4 Be3 c1R Nec2 Nd2 Ba6 Qb8 Rg1 Bg7 Nb5 Rd1 Nb4 c2 Nc7 Bf3 Bf2 Kg6 f7 Nd4 f8N+ Kf5 g6 Kf6 Rb1 a1R Rg5 Ra2 Rb2 c1R+ Rc2 Bh6 g7 Rb2 Bg1 Ra2 Re5 Bf4 Rg5 Be5 Bb7 Rb2 Kb6 Ra2 Rb2 Rc4 Rc2 Nh6 g8B Nhf5 Rb2 Ng7 Bh7 Ne8 Rc2 Ne4 Rf2 Rac2 Rf1 Rg2 Rf2 Nd2 Ka5 Qd8 Ba6 Rc8 a8B Qd6 Nce6 Qb8 Bc6 Bd6 Ba4 Be5 Bb7 Bc7+ Ka6 Bd8 Nc7 Rcc1 Ka5 Rc6 Ba6 Rb6 Nb5 Rc4 Nc7 Re6 Bb1 Re4 Bbc2 Reg4 Bh7 Qa8 Kb6 Qc8 Re5 Rg7 Rg5 Qb8+
5R2/n1Np1K2/n2rR3/1q1qbpP1/3R2p1/p1R3qB/Nkr2B2/1n1bB1r1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 g4 bxa4 h4 g5 f5 gxh4 g5 e6 Qd2 exf5 Qf4 Ba6 Qg3 Bc8 Qg4 fxg4 Kf2 Ke7 c4 Ke6 b4 Ke5 e4 a5 c5 f5 b5 h5 c6 h3 Kg3 d3 Kh4 Kd4 e5 a3 e6 a2 b6 d2 c7 d1N e7 h2 e8R a4 b7 a3 Bd3 Ra6 Bd2 Bd6 Bb4 Ne7 Bc4 Be5 Bd6 Nc3 Bb4 Nec6 Nh3 Na7 Re1 h1Q Bd5 Qg1 Bg2 Rd6 Nf4 Na6 b8B Bb7 c8R Bf3 Bh3 Qb6 Rf8 Qb5 Nd5 Bd1 Nc7 Kc4 Bc5 Kb3 Bf2 Kb2 Re4 Rhh6 Rd4 Rc6 Rce8 Rhd6 Re6 Qg2 Nd2 Qgd5 Rc1 a1Q Ne4 Nb1 Nc3 Qaa2 Be1 Qab3 Na2 Rc4 Rc3 Rc5 Rcd3 Rc2 Rc3 Bh8 Kg3 h4+ Kf4 Be5+ Ke3 Qbc6 Nb5 Bg3 Rcd3 Be2 Bf1 h3 Bg2 h2 Bh3 h1R Bc7 Bf2+ Kf4 Bd1 Rde3 Rg1 Red3 Qg2 Ke5 Qbd5+ Kf6 Bg3 Rc3 Qcc5 Kg6 Rc6 Kf7 Rb6 Be5 Rd6 Nc7 Qb5 Bf4 Qgf3 Be3 Be5 B3f2 Qg3
Kn3B1R/b7/2Nn4/bN1NBprp/2q2PR1/1b4bk/1Bpp4/Br2b1n1 w - - 0 1 legal: proof: c4 d5 d4 dxc4 a4 e5 d5 b5 Qd3 bxa4 Qd4 exd4 h4 Ne7 g4 Ng8 g5 Ke7 g6 hxg6 Nh3 Kd7 Ng1 Ke8 h5 Nc6 h6 Nce7 Bh3 Nc6 Bg4 Nb8 Bh5 gxh5 Kd2 Ke7 b4 Kf6 e4 Kg5 h7 Kg4 e5 g5 e6 a5 d6 c5 b5 f5 e7 d3 Ke3 a3 e8N a2 d7 c3 b6 c4 Kd4 a4 Kd5 c2 b7 a3 Ng7 c3 Nf3 Bd6 Bd2 c1B Rd1 c2 Be3 Nf6+ Ke6 Ne4 Kd5 Kh3 Nd4 g4 Ne8 g3 Nc3 g2 Bh6 g1N Nf6 Rg8 h8B Rg5 Bf8 Bg3 f4 Qc7 d8B Be3 Nc6 Ba7 Nb5 Nd6 Re1 d2 Re8 Be1 Rc1 a1B Rb1 a2 Rd1 Na6 b8B B1d4 Bde7 a1B Rd8 Nf7 Ba3 Bac3 Bb2 Bdf2 Re8 Bb7 Bhg7 Qc8 Be5 Ba5 Ra1 Nd6 Ra3+ Kh2 Rg3 Rb8 Rg4 Bg3 Ba1 Ba8 Beb2 Rb6 Bh8 Nb8 Kc5 Bh4 Nd5 Bhg3 Bhe5 Bb7 Be7 Kh3 Rh8 Qg8 Bf8 Ba6 Nbd4 Bc4 Nb5 Nc8 Na3 Bb3 Nb5 Ne7 Kd6 Nc8+ Kc7 Qe6 Ne3 Qc4 Nd5 Ra6+ Kb7 Rb6+ Ka8 Nd6 Nbc3 Rb4 Nb5 Ba2 Bbc3 Rb1 Bcb2 Bb3
n1K5/2n1R1r1/2b2NB1/b1p1r1p1/1bBpnB1p/nN1R3N/2B2P1q/5k1n w - - 0 1 legal: proof: h4 a5 b4 axb4 d4 e5 g4 exd4 c4 bxc3 h5 f6 g5 g6 Qd2 gxh5 g6 h4 Qg5 fxg5 a4 Ke7 e4 Kf6 Ke2 Ke5 Kd3 d5 a5 b5 a6 h5 a7 b4 g7 c2 Na3 h3 Be2 h2 Nb1 b3 Ra2 h4 Ba3 Kf4 e5 c1B e6 b2 e7 Rh7 e8B Na6 Bb5 Bb7 Ra1 Bb4 Bc6 Nf6 g8B Bcd2 Be8 c5 Bgf7 Ne4 Bd1 Qb8 Bc2 Nc7 Nh3+ Kf3 Re1 Kg2 Bg8 h1N Bg6 Bdc3 Nd2 b1N Nb3 Rg7 Bc1 Bc6 Bf4 Na3 Rad1 Ba5 Rd2 Bcb4 Ree2 Kf1 Re3 Nd6 Re7 Ndc4 B8f7 Nb6 Be6 Qf8 Bg8 Re8 a8N Qf6 B8f7 Qd6 Be6 Nbc4 Nb6 Qe5 Nd7 Nb6 Nf6 Nba8 Bc8 Qd6 Ba6 Qe5 Bc4 Qd6 Be3 Qh2 Bf4 Kg2 Ke2 d3+ Ke3 Kf1 Kf3 d4+ Kg4 Rd8 Kf5 Re8 Rde2 d2 R2e3+ Kg2 Rf3 d1N Rd3 Kf1 Ke5 Nc3 Kd6 Bb7 Kd7 Ne4 Rf7 Re5 Re7 Bd5 Kc8 Bc6
r2rR1b1/BBbN1nPk/1qp5/2pR3K/p2n2N1/1p1q1r2/r1R5/N3R2b w - - 0 1 legal: proof: f4 g5 c4 e5 h4 exf4 c5 d6 Qb3 dxc5 Qc2 Qe7 Qd1 Qd8 b4 gxh4 a4 a6 b5 axb5 a5 Qe7 Qc2 Qd8 Qa4 bxa4 Kf2 h5 Kf3 f5 e4 Kf7 g4 Kg6 d4 h3 e5 h4 a6 h2 d5 h3 g5 Be6 a7 Nh6 d6 Bg8 d7 Nc6 e6 Bd6 e7 Nf7 e8R Kh7 Ra2 b5 Bg2 b4 Na3 b3 Rc2 Qb8 d8R Qb6 Be3 Be5 Rd5 Rd8 a8N Nd4+ Kf2 f3 Bf4 Bd6 Kg3 f2 Kh4 f1Q Nf3 Qd3 Rhe1 h1B Ne5 h2 Ng4 Be5 Bg3 f4 Kh5 f3 Bf4 f2 Bf3 Qa5 Nb6 f1R Nd7 Qb6 Bg2 Rf3 Bg3 Nh6 g6+ Kg7 Bf1 c6 Be2 Bc7 Bf1 Qc3 Ba6 Qd3 Bb7 Nf7+ Nh6 Bh7 Ng4 Rf8 Bd6 Bg8 Bf4 Kh8 g7+ Kh7 Be5 Ra8 Bg3 Bd8 Bb8 Bc7 R8e3 Rd8 Ba7 Bg2 Re8 h1R+ Nh2 Rhf1 Ng4 R3f2 Rc4 Bf3 Nc2 Bh1 Na1 Ra2 Rc2 Rf3
3Nk3/1qb5/3R1rq1/1NrpP1p1/1B1NBbpp/2Rn4/1rpB1n2/Kb3N2 w - - 0 1 legal: proof: c4 d5 b4 dxc4 h4 f5 g4 fxg4 d4 a5 h5 axb4 h6 e6 d5 Qh4 d6 Qxh6 Qd3 Qh2 Qd5 exd5 Kd2 h5 Kc2 c5 Kb2 g5 e4 b5 a4 c3+ Ka2 c4 e5 c2 f4 c3 a5 h4 f5 b3+ Ka3 b4+ Ka4 b2 Kb3 Nd7 Ka2 Nc5 a6 Rh6 a7 Rf6 Ne2 Nd3 Nd2 b1R Nd4 Qg2 Rh2 Qe4 Rh3 Rb8 a8N Rb5 Rf3 Rc5 Bg2 Ba6 Nf1 b3+ Ka3 b2 Ka2 Be7 Bd2 c1B Re3 Bd8 d7+ Ke7 Rh3 Bc7 d8N Ke8 Re3 Bb5 Bf3 Ba4 Bh1 Bc2 Rg3 Rf8 f6 Qg6 Be4 Rf7 Be1 Bf4 Bd2 Ne7 Re3 Nf5 Rf3 Ne3 Rg3 Rf8 f7+ Ke7 Rh3 Nd1 Rf3 N1f2 Rh3 Rg8 f8B+ Ke8 Bd6 Rf8 Re3 Rc4 Bb4 Rc5 Rf3 Bh2 Rf6 Bf4 Rc6 Rf6 Rd6 Rd1 Rc1 Re1 Nb6 Re2 Nc8 b1Q+ Ka3 Bb3 Na7 Ba2 Nab5 Qb2+ Ka4 Bb1 Rc2 Qa1+ Kb3 Qa6 Rc1 Qb7 Ka3 Bc2 Ka2 Bb1+ Ka1 Rf8 Be1 Rb2 Bd2 Rf6 Re1 c2 Re3 Ne1 Rc3 Ned3
5NQn/1p1p1r2/2Q2NB1/k3BbK1/1rBP2p1/bQpn1n2/2n3N1/1qb5 w - - 0 1 legal: proof: c4 g5 b4 e5 f4 exf4 Nc3 g4 Na4 a6 b5 axb5 Nb6 bxc4 Nxc8 c3 a4 h5 Rb1 Rh6 Rb6 Be7 Rd6 Bf8 Rd3 Rh8 Rf3 gxf3 g4 Ra5 h4 Rf5 g5 Ra5 Rh2 Ra6 Rg2 Ra8 Rg4 hxg4 Kf2 f5 e4 c5 d4 c4 a5 c2 h5 c3 e5 Nc6 e6 Ba3 h6 Nb4 h7 Qb6 a6 Kd8 g6 Kc7 a7 Nh6 e7 Rf8 e8B Nf7 g7 Nh8 g8Q Rf7 Bd2 c1B Ne2 Nd3+ Kg1 f2+ Kg2 f3+ Kg3 f4+ Kh4 Qb1 Nb6 Kc6 Kg5 Kb5 Nd5 Ka5 Qb3 Rc8 a8N Rc4 Nf6 Ra4 Nc7 Rb4 Bh3 f1B Ne6 f2 Nf8 f3 Nf4 Be2 Ng2 f1N Bf4 Ne3 Be5 f2 Qg6 f1N Qe4 Nd2 Qc6 Ng6 h8Q Nc2 Qh7 Nh8 Qg8 Rh7 Bg6 Rf7 Nh4 Bf3 Bf1 Be4 Ng2 Bf5 Be2 Nf4 Bb5 Nd3 Bc4 Nf3+
Q3qbnR/P2rNR2/1Q2bq2/p1Q2b1b/k4b1n/2n2K2/1b1q1N2/3r2RN w - - 0 1 illegal: No possible last move
4R2b/1q1kN1RN/Qnb3rQ/rq3bbK/b1Pr4/1N2Q3/p2Rn3/1r3r2 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 b4 f1R e4 a5 Ke2 d5 h4 f5 g6 g3 b5 d3+ Kd2 f3 Ke3 f2 Kf3 a3 h5 g2 b6 d2 g7 d4 h6 a2 c3 f4 e5 d3 e6 a4 Kg4 a3 h7 f3 b7 Be7 Rh5 Qc7 Rd5 Nd7 b8N Nh6+ Kh5 Nb6 Rd6 Nf5 Kg4 Bg5 e7 Ra5 Na6 Nd4+ Re6 Ne2 g8R+ Kd7 Rg7 Rd8 h8Q Qb7 Nh3 g1R+ Kh5 Rg4 Qb3 d1B Qc4 d2 Nc7 Ba4 Qa6 d1B Nd5 Bc6 Qh6 Bda4 Nd2 Rb1 Nb3 f1R c4 f2 Re3 Rg8 Rd3 Re4 Rd2 Rd4 Rf7 Rg6 e8Q+ Kd6 Rf8 Bf5 Qe3 Kd7 Ra8 Rbc1 Rb1 a1B Ne7 a2 Re8 Bc3 Rbb2 Rb1 Rbc2 Rfe1 Rb2 f1Q Rbc2 Qf2 Rc1 Rh1 Rg1 Qf4 Rg3 Qe5 Rg1 Qb5 Rg3 Bh4 Ng5 Rhf1 Nh7 Bg5 Rf3 Bfe4 Rf7 Bf5 Rg7 Rdd6 Rf7 Bh8 Rg7 Rd4
nn3rn1/b1nk4/Q1rPRRB1/2rb1p2/2b4q/5bR1/B1n1QBQq/3K4 w - - 0 1 legal: proof: g4 g5 b4 h5 c4 d5 f4 gxf4 b5 e5 g5 e4 Na3 dxc4 Nf3 exf3 Nc2 a6 Ne3 axb5 Ng4 hxg4 Qb3 b4 Qc2 Bc5 Qd1 Bf8 a4 b5 h4 f5 d4 c5 e4 f2+ Ke2 c3 d5 g3 e5 c2 a5 c4 a6 c3 a7 b3 e6 f3+ Ke3 b4 g6 g2 e7 g1Q g7 b2 h5 b1B h6 b3 h7 b2 Bh3 f1N+ Kd3 f2 Ke2 Qh2 Qd4 Ne3 Qh4 f1B+ Ke1 Ba2 Qe4 b1N Bg2 Bb7 Qf3 Kd7 e8R Bfc4 Bd2 c1N Qe2 c2 Bf3 Nc3 Rg1 Nb3 Rg3 Nd4 Bh5 Ncb5 Bg6 Bc5 Re6 Nc7 d6 Bf3 Rf6 Ned5 Be3 Bb6 Bf2 c1R+ Kd2 Rc3 Re1 Nc2 Kd1 Be3 Rg4 Nb6 Rg3 Ne7 g8B Bcd5 Rg5 Rc5 Rg3 Bac4 B8f7 Re8 h8Q Ng8 Qh3 Rc6 Qg2 Re5 Re6 Qdh4 Rf6 Bde4 Bd5 Bd4 Bdf7 Rec5 Bd5 Nba6 Bdf7 Rf8 a8Q Nb8 Qa6 Nba8 Bd5 Bcd3 Ba2 Bd5 Bf7 B3c4 Bg6 Bh5 Qef3 Bg4 Ree6 Bh5 Qe2 Bhf3 Be3 Ra5 Bg1 Ba7 Bf2 Rac5
b1rrQB2/b2Br2Q/1pb5/3q3p/2Q1P2K/1N1Nn3/1n1q1B2/rn1q1N1k w - - 0 1 legal: proof: d4 e5 b4 c5 h4 cxd4 f4 exf4 h5 a5 h6 axb4 a3 g6 g4 Bd6 a4 Qb6 g5 Bf8 Rh5 Qd8 Ra3 Nc6 Rg3 gxh5 g6 Nb8 g7 Qc7 Rg4 Qd8 Rg6 hxg6 Kf2 Ke7 c4 Kf6 e4 Kg5 h7 Kh4 a5 f5 c5 d5 a6 f3 c6 b3 a7 d3 c7 f4 Ne2 d4 Ng1 g5 Be3 b2 Qd2 g4 Nc3 b1N Qe2 g3+ Ke1 d2+ Kd1 g2 Nh3 Kg3 Nb5 Kh2 Na3 f2 Qe1 g1R Ke2 f3+ Kd1 Nf6 g8Q Kh1 Bd3 f1B Bf2 Rg7 Qe3 Bc5 Qh6 Re7 Qe8 Na6 Nf4 Nd5 Nc4 Nab4 Ne3 Qd6 Ba6 Bb5 Nd3 Bc6 Nf1 Rb8 a8Q Ba7 Bb5 b6 Qg7 Rf8 h8B B8b7 Qh7 Rd8 Qc8 Ba8 Bg7 Rg8 Bf8 Rh8 Nc5 Nd3 Nb3 Qc5 Qe6 Qb4 c8N Nb2+ Kc2 d1R Nd6 Rc8 Nb7 Qe1 Be3 f2 N7c5 Rg8 Nd3 Qb4 Nfd2 f1Q Bf2 Qd6 Ba4 Qg2 Nf1 Qgh2 Q6f7 Rg1 Qfg8 Rd2+ Kc1 Ne3 Qc4 Qd5 Be1 Rdg2 Bf2 Rg6 Bb5 Rd6 Ba4 Rdd8 Bb5 Nc3 Kd2 Nb1+ Ke2 Qhd6 Kf3 Qd7 Ndc1 d3 Ba4 d2 Nd3 d1Q+ Kf4 Ng2+ Kg3 Ne3+ Kh4 Qd2 Nh2 Rc1 Nf1 Qd1 Ne5 Q5d2 Nd3 Qd5 Bb5 Na3 Ba4 Ra1 Bb5 Nb1 Ba4 Bcb7 Bd7 Bc6
2K5/r1bRqnp1/2b5/1bpBB3/pQ1r1QP1/1qq2R2/n1k1BR1r/2b3Q1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 b5 g4 e5 Nc3 exf4 Nf3 h5 Ne4 h4 Ng3 hxg3 a4 bxa4 Nd4 Qf6 Nb3 axb3 Bh3 Qg5 Bf1 Qd8 h4 Ke7 e4 Kd6 Ke2 Ke5 Kf3 Kd4 d3 Kc3 d4 c5 b5 a5 h5 f5 h6 b2 h7 b1Q d5 a4 b6 g2 e5 g1R e6 Ra7 e7 Na6 e8B Qb3 b7 Nh6 b8Q Qe7 d6 Nb4 d7 Na2 d8Q Bb7+ Bc6 Nf7 Bd5 Bc6 Rh3 Rh1 Rb1 Rh2 Qdc7 Rg8 Qd4+ Kc2+ Be3 c3 Rd1 Rh8 Qbb4 Rd2 Be2 Rd3 Kf2 f3 Kg3 f2 Kf4 f1Q+ Rf3 Qh3 Bf2 Rd2 Bg3 Rd3 Qg1 Rd2 Rf2 Rd4+ Kf3 f4 Qe5 Rd2 Ke4 f3 Kf5 Rd4 Bh2 Qg3 Qe3 Qh3 Be5 Qg3 Qf4 Qh3 Rg2 f2 Rh2 f1B Rf2 Qc7 Ke6 Bd6 Rd3 Qd8 Re3 Bc7 Ref3 Qe7+ Kf5 Rc8 h8R Qg3 Rh6 Rh8 Rd6 Rh2 Rd8 Kb1 Rd7 c2 Rd3 c1B Rdf3 Qg5+ Ke6 Kc2 Rg2 Qe1 Rgf2 Qec3 Rd6 Ba8 Kd7 Qe7+ Kc8 Bc6 Rd7 Kb1 Bd1 Bfb5 Be2 Kc2
rnrn1Q2/2NR4/Qb5q/P3rR2/r1N3r1/1n2Q1pp/kp3pb1/NR4K1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 c5 h5 cxd4 Rh3 e5 Rh1 exf4 g4 Qa5 Bh3 Qa3 Be3 Be7 Bf2 Bd8 Bh4 gxh4 g5 Be7 g6 Qa5 g7 Bf8 Bf5 Qd8 Bg6 hxg6 Kf2 Ke7 c4 Ke6 a4 b5 e4 f5 h6 d5 a5 b3 c5 f3 e5 b4 h7 d3 c6 d2 c7 h3 Qe1 d1R Qe4 f4 Ra2 b2 Qc2 b3 Qe2 d4 Qc2 Kd5 e6 g5 e7 d3 e8Q g4 Qh5+ Qg5 Ra1 d2 Na3 b1N Rh2 b2 Rh1 Bb7 c8N Nh6 g8Q+ Nf7 Qc1 Re1 Na7 d1R Qh6 Bc5+ Qe3 Nd2 Ne2 Bb6 Nb1 Kc4 Rg1 Nb3 Nc1 Rd4 Rf1 g3+ Kg1 Qf6 Qhf8 Qh6 Qg6 Nd8 Nb5 Rg8 Qgd6 Rg4 h8R Re4 Rh7 f2+ Kh1 Re2 Nc7 Rc2 Re7 Re5+ Qc6+ Kb4 Nd2 Rc4 Rb1 Ka3 Rd7+ Rb4 Ne2 Ka2 Nd4 Rc4 Nc2 Ra4 Qg2 Bd5 Nc4 Bf3 Na1 Bd5 Rg1 f1R Qge4 Re1 Rf1 Rc1 Kg1 Bc6 Qd3 Bg2 Nd6 Rc6 Qa6 Rcc5 Nc4 f3 Rfd1 Rc6 R1d4 Rcc5 Rf4 Rc6 Rf5 Rcc5 Nd5 Rc8 Nc7 f2+
3n4/q1R2n1p/N2Q2PR/Kpr1p3/2N1p1n1/rQ1n4/Q1b1Np1R/2rk2b1 w - - 0 1 illegal: No possible last move
1b1N1QNR/Nq2K1N1/3b1Q2/1Bb4p/qb3bn1/P4krr/4N1n1/6q1 w - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 a5 b4 axb4 a3 f5 Ra2 fxe4 Qf3 b3 Qd1 bxa2 g4 Bd7 f4 Qc8 f5 Kd8 Bb2 Ra5 Be5 Ke8 Bd6 Bb5 Bf4 gxf4 h3 Be2 g5 Bg4 hxg4 Qd8 Rh2 Ra6 Rh1 Ra8 Ke2 Kf7 d4 a1B g6+ Kf6 d6 Kg5 d5 e5 f6 b5 g7 c5 f7 b4 d7 b3 d6 c4 Bg2 f3+ Ke3 b2 Ne2 f2 Rh2 f1Q Nbc3 b1Q Bh3 Qg1+ Rf2 Qb7 Nf4 Nf6 g8N Nd5+ Kd2 e3+ Ke2 e4 Rf3 Nc6 Ng2 Qe8 d8N Ne5 d7 Bc5 Nb5 c3 f8Q c2 Rf1 c1B Na7 h6 Ne7 Nf4+ Ke1 e2 Qd6 Rc8 Nf5 h5 Ng7 Rg8 Ndc6 Rc7 d8Q+ Re7 Qb6 Bab2 Nd8 Qa4 Qa6 Bbd4 Qac6 Bb6 Qc3 Bdc5 Qcd4 Bc7 Qf2 Nd5 Nf4 Ne3 Qf3 Kh4 g5 N5g4 g6 Re5 Bg2 Rd5 Bh1 Rd3 Bg2 Bb2 Bh3 Be5 Bg2 Rc3 Kd2 e1B+ Ke2 Bf2 Rc1 Bg3 Bf1 Ng2 Rb1 Qc8 Rb8 e3 Qf2 Qca6+ Kf3 Q6b5 Bc4 e2+ Ke4 e1B Kf5 Qb7 Ne2 Bf4 Ke6 Rb3 Ke7 Beb4 Qd4 Bh2 Bb5 Rh3 Nc3 Kg3 Ne2+ Kf3 Qdf6 Rh8 Nf5 Rh6 g7 Rg6 g8N Ne5 Be8 Rgg3 Bb5 Ng4 Ng7 Qa8 Nf7 B7b6 Qd8 Qc6 Ngh6 Qb7+ Ke6 B6a5 Qdd4 Bab6 Qde7 B6a5 Rh8 Bd8 Qg6 Bfd6 Qf8 Bb8 Ng8 Bdc7 Qe5 Kf2 Qd5 Rc3 Qdd6 Bf4 Ke7 Rcg3 Qf6 Kf3 Nd8 B7xd6+
nQ6/bKq3N1/pP2n1n1/RQ2N3/3rr3/1BNr1Nkq/1q2b3/N4b1q w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 h4 gxh4 b3 e5 c4 exf4 Bb2 b5 Bc3 dxc3 Ra2 Be7 axb5 Bd6 b4 Bf8 Rb2 cxb2 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 Kg4 e4+ f3 b6 f5 g3 h5 b5 a6 b7 f4 c5 h3 e5 h2 c6 h4 e6 h3 c7 Bc5 e7 Nc6 b8Q Rh4 e8N Ba7 b6 Nd4 Bd3 Ne6 Kd6 Ne7 Qe2 Ng6 Qe1 f2 Qd2 f1B Na3 b1Q Qb4 Qb2 Qc5 f3 Nc2 f2 Qb5 Be2 Nf3 f1N Ng7 Ne3 Rc1 h1Q Bc4 h2 Bb3 Nd5 Na1 Qf1 Rc6 h1Q Rc5 Kh3 g4 Kg3 g5 Qfh3 Rc6 Rd4 Rc5 Bb7 c8N Ndc7+ Rd5 Re4 Ne7 Bf1 Re5 Bd5 Nc6 Bdc4 Rd5 Bce2 Nce5 Rd4 Qa4 Re4 Ra5 Qc8 Qb5 Qb7 Qe8 Rd8 Qf8 Na8 Qg8 Nh8 g6 Qc7+ Kd5 d6 Qge8 Rd7 Qb8 Rd8 Ne8 Rd7 g7 Ng6 g8N Rf7 Nd4 Rf3 Ng7 Rd3 Nf6 Qe7 Kc6 d5 Ndf3 d4 Nd5 Qd8 Nc3 Qc7+ Kd5 Rd2 Nh2 d3 Nhf3 Rd1 Qd7 d2 Qb5 Rc1 Na4 Rcc4 Nc3 Rb4 Qc4 d1R+ Qd3 Qf7 Kc6 Rbd4 Qc4 Qe7 Qb5 Qd6+ Kb7 R1d3 Ba2 Qc5 Bb3 Qc7+
1r1QQqn1/1bb2R2/3n2B1/p1kqb1Q1/1N3b2/2qnb1P1/Q4Qb1/2rKN3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 e4 g5 a4 h5 b4 b5 g3 bxa4 e5 h4 e6 h3 f5 fxe6 Bf4 gxf4 Ra3 e5 Re3 e4 Re2 Nf6 Rf2 Ng8 Rg2 hxg2 h4 e5 c4 Ke7 b5 Kd6 h5 a5 h6 e3 h7 e2 f6 f3 f7 a3 b6 a2 b7 a1B Qb3 f2+ Kd2 e1B+ Kc1 e4 Qb2 e3 Bd3 f1B Rh4 e2 Rh5 Na6 b8Q+ Nc7 Qa2 Bb7 Nc3 Bd2+ Kc2 e1Q Rf5 Bf4 Be2 d3+ Kb3 d2 Kc2 d1N Bf3 Nf2 Rc5 Nd3 Qa7 Rc8 Be4 Nb5 Nf3 g1B Bg6 Bge3 Nd5 Bg2 Nb4 Bae5 Rc7 Qc3+ Kd1 Be7 Qa8 Qf8 Ne1 Bd8 Qa7 Bbe4 Rb7 Bc7 Qa6+ Kc5 Qf6 d5 Qg5 d4 Ra7 Qh6 f8Q+ Nd6 Qe8 Qf8 Qf7 Kb6 c5+ Kb5 Qff6 Bb7 c6 Kc5 Qff7 Nc1 Qf2 d3 Qe6 d2 Qa2 Bd8 c7 Nd3 Ke2 Rb8 c8Q+ Bc7 Qd7 Bgc6 Qdd8 d1Q+ Kf1 Qdb3 Ke2 Bg2 Qe8 Qd5 Kd1 Nf6 Qd8 Rg8 h8Q Rg7 Qh3 Ng8 Qhd7 Rh7 Q7e8 Rh2 Qf1 Bh1 Qf3 Rc2 Qf2 Bg2 Ra6 Nc4 Rf6 Nd6 Rf7 Rc1+
Bbr1nnb1/5qq1/rb2RP2/6qQ/2b1n3/BBp3q1/1K5Q/3BBkbN w - - 0 1 illegal: No possible last move, all moves rejected
1bbn1qk1/qr4P1/1prb2N1/q4Q1K/1Qn2qQ1/1n1N2rR/1QQ1n3/1B6 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 e5 a4 exf4 Na3 c5 Nb1 cxd4 Ra3 h6 Rg3 f3 Bf4 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 Kf2 f5 c4 d5 e4 g4 h4 d3 e5 d4 g7 Kf7 a5 g3+ Ke1 f2+ Kd2 g2 h5 f3 h6 b3 a6 b2 c5 f4 a7 Ne7 h7 Na6 c6 Nc5 c7 Nc6 Nh3 g1B Be2 f1Q Nc3 b1R Nf2 Bh2 Qc1 Bd6 Nh3 f2 Qe1 f3 Bd1 Qg1 Nd5 f1Q Ne7 f2 Ng6 Re8 h8Q Re6 Qh5 Kg8 Qee2 Qdg5+ Nhf4 Nd8 Qeg4 Rb4 Kc1 d2+ Kc2 Rb8 a8Q Nb3 Qa1 d3+ Kc3 b6 Qb2 Rb7 Bc2 d1Q Qhh3 d2 Nd3 Qf3 Bb1 d1N+ Kc2 Rf6 e6 Qff4 e7 Ne3+ Kc3 Qa5 e8Q+ Bf8 Qb5 Bd6 Qhh4 Nc4 Qbf5 Re6 Qe7 Ra4+ Kc2 Ra3 Qeh4 Bg3 Rh3 Qa7 Qe7 Qgg2 Qeh4 Qd5 Qe7 Rf6 Qe1 Qda5 Kd1 Qg2 Qed2 f1N Qb4 Qgd5 Ke2 Qf7 Rh2 Qf8 Rh3 Qc1 Kf3 Bge5 Qgf4 Ng3 Kg4 Ne2 Kh5 Re6 Qh4 Qf4 Qhg4 Nc5 Nf2 Rg3 Qfc2 Nb3 Nd3 Be7 Qf5 Rc6 Qg4 B7d6 Qf5 Bd7 c8Q Be6 Qd7 Bb8 Qdd4 Bc8 Qde4 Bec7 Qf3 Be5 Q3g4 Bed6
2qbq3/1Nr2PQ1/5BQ1/2bRQ1rK/2br1QQ1/1b4pn/k1r2bB1/2nb4 w - - 0 1 illegal: No possible last move, all moves rejected
3K1kbn/n2P1q2/Q1QrRp1p/2QqNrQq/bb2Qbn1/3BR2b/8/8 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 f5 h6 g5 e6 g6 exf5 Qc2 f4 Qa4+ Bd7 Qd1 Bc8 h4 Ne7 h5 Qd7 Nc3 Qd6 Ne4 Ng8 Bb2 Qd8 Bf6 Qd6 Bg5 Qd8 Ng3 Ra3 Nf5 hxg5 h6 Ra6 h7 Ra8 Nh6 gxh6 Kf2 c5 Kf3 b5 Ke4 c3 Ke5 c4 e4 b3 d4 c2 a4 c1B d5 b2 g7 b1B a5 b4 d6 b3 a6 b2 a7 f6+ Kd5 g4 e5 g3 e6 g2 e7 f3 Ra4 f2 Rh4 c3 Qd2 c2 Rhc4 Bh3 Rh4 Ba2+ Kc5 b1B Qc3 Nc6 Qa1 Bf4 Ne2 g1Q Re4 Qg4 Nd4 c1Q+ Qc3 Rc8 a8Q Na7+ Nc6 Bc2 Re6 Ba4 Bd3 f1N Rh5 Qd7 Kb6 Ne3 Ne5 Qcd1 Qe4 Rc5 Rg5 Qf5 Rg3 Ng4 Re3 Qh5 Qcb4 Rd5 Qb5 Qf7 Qc5 Qb5+ Kc7 Qdb3 Nc4 Rf5 Ne5 Qh5 Nf3 Kf7 Kd8 Qb7 Qec6 Qd5 Qa6 Kg6 e8Q+ Qf7 Qeb5 Ne7 g8Q+ Bg7 Qge8 Bf8 Qbb6 Kg7 Ne5 Ng6 Qbb4 Rg8 Qec6 Nh8 Qe4 Be7+ Kd7 Kf8 Kc7 Ng6 h8Q B2b3 Qh7 Nh8 d7 Rgg5 Q5b6 Bb4 Kd8 Nf2 Qg6 Rg2 Qcb7 Ng4 Qg5 Rc2 Qc8 Rc6 Qc5+ Rd6 Q8c6 Qh7 Qc3 Qb5 Re7 Bg8 Re6 Qd5 Q3c5 Q7f7
1kr2R1n/1bnnB3/2Qb1N1N/1pQ1N2q/2bP4/2NNKp2/q1bn1r2/6q1 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 gxf4 a4 e5 c5 h5 g5 e4 Bh3 d6 Bg4 dxc5 Ra3 hxg4 Rb3 c4 Rf3 exf3 Kf2 Kd7 d4 c5 e4 Kc7 h4 f5 g6 b5 h5 c3 e5 c4 g7 c2 e6 c3 e7 b3 e8Q g3+ Ke1 g2 Kf2 b2 a5 Qd5 h6 Bd6 a6 Nf6 g8N Nbd7 h7 Qa2 a7 Bb7 Qe4 Nd5 Rh5 Rf8 a8N+ Kb8 Ne7 Nc7 Bd2 c1N Qb3 c2 Nd5 Ne2 Qc3 c1Q Qc6 Qc5 Nbc3 b1B Qe7 Bc2 Nab6 Rf7 Rh2 Rc8 Nh3 Rff8 Rh1 Rf7 Rf1 g1Q+ Ke1 Rff8 h8N Rf6 Be3 f2+ Kd2 f3 Bg5 Nf4 Nf7 Ng6 Nhf4 Nh8 Nd3 f4 Nh6 Rf7 Nc4 Rf5 Rb1 f1B Nf6 f2 Nce5 Qcd5 Re1 Qdh1 Re3 Qh5 Rg3 Be2 Bh4 Bf1 Rg8 Be2 Rf8 Bf1 Nb2 Bc4 Nbd3 f1N+ Ke1 Qg8 Kf2 Nd2 Bg5 f3 Bh4 Rg5 Ke3 Rg2 Bg5 Rf2 Bh4 Bb4 Qec5 Qg1 Nfg8 Be6 Be7 Bc4 Nf6 Ba3 Q5d5 Bd6 Qcc5 Qgg4 Qdc6 Qg1
Qb1nR3/5qp1/1B1qr1r1/P2nQp2/bN3qQ1/kr4N1/2p1Q3/1rb1QK2 w - - 0 1 legal: proof: c4 h5 f4 d5 b4 dxc4 g4 hxg4 f5 a5 a3 axb4 f6 e6 e4 Qd3 e5 Bc5 a4 Qd8 Bd3 Kd7 Bf5 Bf8 Ra3 Kc6 Re3 exf5 e6 Kd6 e7 Kd7 Re6 fxe6 e8Q+ Kd6 d4 c5 h4 b5 h5 g3 d5 e5 f7 b3 a5 g2 h6 b4 h7 c3 Qa4 c4 Bf4 Kc5 d6 e4 d7 c2 Bd2 c1B Qa1 c3 Qc2 e3 Qd1 c2 Rh2 b2 Rh6 e2 Bf4 b3 Rg6 Kb4 Rh6 Ne7 Rc6 Ra6 Qa2 Nd5 Be3 Bd6 Nc3 b1Q f8Q b2 Qc4+ Ka3 Qf6 Qa2 Bb6 b1R Qg4 Qf8 d8Q Bd7 Rc7 Ba4 Qde7 Nc6 Rc8 Nd8 Qfe5 Rb3 Kf2 e1R Qde2 Qf7 Rb8 Re8 h8Q Qb2 Qeh4 Re6 Na2 Rg6 Ra8 Bb8 Nb4 Re6 Qhg3 Qd4+ Qge3 Rd1 Qe1 Qc4 Ne2 Qf4+ Qef3 Rg6 Ng3 g1Q+ Ke2 Qc5 Kf1 Qd6 Qh2 Bc7 Rc8 Bb8 Qhe2 Nc6 Re8 Nd8 Qef2 Be3 Q3g2 Rdb1 Qge4 Bc1 Q1e2 Nc3 Qa8 Nd5 Qe1 Ra7 Qff3 Re7 Qff2 Ree6 Qff3 Qe3 Qfe2 Qf4+
r7/1PnQnkpr/qp1b1q1Q/2N2bp1/qR3q2/3nQ1N1/2Q1b1B1/3K3Q w - - 0 1 legal: proof: f4 b5 d4 c5 g4 cxd4 g5 e5 g6 exf4 Bd2 hxg6 Bc1 g5 b4 Qb6 a4 Qa6 a5 Rh6 Ra4 bxa4 b5 Bc5 b6 Bf8 b7 Qb6 Ba3 Rh8 Bc5 Qd8 Bb6 axb6 h4 d5 c4 f5 e4 d3 c5 d4 e5 a3 c6 f3 c7 a2 a6 a1Q a7 f4 h5 Qa6 h6 Rh7 e6 Bd6 e7 Kf7 Nd2 Bf5 Qc2 f2+ Kd1 f3 Ne4 d2 Bg2 f1B c8Q f2 Ne2 Qc7 N2g3 Qcc4 Nc5 Qe6 Qe4 Qf6 Kc2 d1N Qd7 Nb2 Rh4 Nd3 Kd1 Ne5 Qe2 d3 Qc2 d2 Rb4 Nd3 Rc4 Qe5 Rb4 Qf4 e8Q+ Kf6 Qc6 Ne7 Qed7 Kf7 Qe4 Qb5 Qe3 Na6 Rb1 Nc7 Rb4 Rah8 a8Q Qa6 Qad8 Re8 Qc6 Rg8 Qdd7 Ra8 Bh1 B1h3 Bg2 f1Q+ Qe1 Q1f2 Qf3 Q2d4 Qh1 Qb2 Qe3 Qf6 Be4 Bf1 Bf3 Q6e5 Bg2 Qf6 Qc3 Ne6 Kc2 Rhh8 h7 Nc7 Qb2 Rhd8 h8Q Rf8 Q8h7 Rh8 Q7h6 Rh7 Qc1 d1Q+ Kb1 Qda4 Qc2 Nb2 Kc1 Nd3+ Kd1 Be2+
1B2k1bB/1P2p1b1/1r2rrq1/n2NQQq1/2b4B/4Q1bb/3n1R1r/6BK w - - 0 1 legal: proof: d4 a5 b4 c5 a4 cxd4 e4 f5 b5 fxe4 Ra2 b6 Rb2 Bb7 Rb4 axb4 a5 Ba6 axb6 Bc8 g4 g6 f4 Bb7 f5 Ba6 f6 Bc8 Bh3 Ba6 Nd2 Bc8 Ndf3 h6 g5 h5 Bf5 gxf5 Ne5 Ra4 Ng4 hxg4 Nh3 Ra5 Ng1 Ra8 Kf2 d5 Kg2 f4 h4 b3 c4 g3 g6 f3+ Kf1 g2+ Kf2 b2 g7 b1Q h5 d3 b7 d2 h6 d4 c5 e3+ Kg3 d3 Kh2 f2 b6 f1B h7 e2 c6 e1B c7 Qd5 Qe2 d1B Qd2 Bb3 Qf4 d2 Qe5 d1R Be3 Qg6 Nh3 g1R Nf4 Nc6 b8B Rb1 b7 Ra6 Bea7 Rg3 Bg1 Bch3 Qe3 Qdg5 Nd5 Na5 c8Q+ Kf7 Qe5 Bfc4 Qcf5 Re6 Qe3 Ke8 f7+ Kd7 Qfe5 Nf6 g8Q Bg7 f8B Ne4 Qf7 Nd2 Qff5 Rg8 h8B Rf3 Nb4 Ke8 Nd5 Bf6 Bh6 Bg7 Qfd3 Rff6 Qdf5 Qg4 Bf4 Q4g5 Bg3 Ba2 Bh4 Rbb6 Bgf2 Bab3 Rf1 Ba2 Bg1 Bg3+ Kh1 Rgf8 Bc7 Bb5 Rf3 Rec6 Qa3 Rfd6 Nb4 Bg8 Qff6 Bbc4 Qae3 Rf7 Qfe6 Rf5 Rf1 Rf2 Bb8 Rg2 Q6f5 Rf6 Rf2 Rce6 Nd5 Rh2+
RR3R2/Nr3b2/6r1/1pnbQB1q/q1Qr1n1p/n1r3PR/3k1K1Q/6r1 w - - 0 1 legal: proof: c4 g5 b3 h5 c5 a5 e3 d5 Qg4 h4 Bc4 dxc4 Bb2 h3 Qd1 Bf5 Be5 Bg4 Bg3 Bc8 Bh4 gxh4 d4 e5 f4 exf4 b4 axb4 e4 c6 d5 Bg7 d6 Bd4 Nc3 Be3 Nd5 Bf2+ Ke2 Bg3 hxg3 cxd5 Kd2 Bf5 Ke1 Bc8 a4 Kd7 c6+ Ke6 d7 Ke5 c7 f5 g4 b5 g3 h2 a5 d4 a6 c3 g5 c2 a7 c1R g6 f3 g7 d3 Kf2 Kd4 e5 Kc3 e6 d2 e7 f4 e8B b3 Kf1 f2 Nf3 b2 Kg2 f1R Bg6 b1N Ra2 Na3 Rb2 Qg5 d8Q Na6 Qf8 Be6 c8R+ Nc5 Rb8 Bf7 Rg1 h1B+ Kh3 Nf6 g8Q Qh5 Bc2 Rh6 Qe1 Nd5 Nd4 f3 Nc6 f2 Bf5 Rg6 Rb1 Bf3 Rh1 Rg1 Qc8 f1R Qe5+ Kc4 Rb2 d1Q Rf2 Qa4 Qgd8 Rcd1 Qa5 Rd4 Qd2 Rd1 Rf1 Rc1 Qh2 Be4 Rf4 Kd3 Qce6 Nc3 Qc4+ Ke3 Rf1 Ne2 Rf2 Kd2 Rf3 Rgd1 Kg2 Rc3 Kf2 Rdc1 Qg1 Bed5 Rh3 Nf4 Qh2 Ng2 Rb6 Rh8 a8R Rg1 Na7 Nf4 Rbb8 Rh7 Bd3 Nfe6 Rf6 Nf4 Bf5 Bg8 Rff8 Rb7 Rfd8 Bge6 Rf8 Bf7
b1q5/RRPQ2n1/q1B2N1k/qR2b3/8/R4nr1/1pp1br2/QQ1bKb2 w - - 0 1 legal: proof: b4 a5 h4 axb4 c4 c5 a4 bxa3 e4 f5 exf5 g5 Bb2 gxh4 Bc3 Ra7 Bb4 Ra8 Nc3 cxb4 Na4 d6 c5 d5 Nb6 Bg7 Nc4 dxc4 Rh2 Bh6 Rh1 Bf8 f4 Kf7 d4 Kg7 g4 e5 c6 b5 c7 h5 d5 b3 d6 e4 g5 a2 g6 e3 f6+ Kh6 f7 b4 f5 e2 d7 c3 f6 b2 g7 b1B Qa4 b3 Nf3 b2 Qa7 h3 Qg1 h2 Qa7 h4 Nd4 h3 Qb7 Bd3 Qg2 c2 Qf2 Bca6 Qf3 Qc8 d8Q Nc6 Rg1 h1B Rg5 h2 Ne6 Nge7 g8R Nd4 Kf2 Nef5 Qd7 Ng7 Rb5 Bd6 f8R Nb3 f7 Be5 Ng5 Nd2 Ne4 Rb8 Qg3 Bf3 Nf6 h1B Qg1 Bg4 Re8 Ba8 f8Q Rb7 Qa3 e1Q+ Kg2 Bh5 Re6 Bc4 Reb6 Bd1 Qa4 Ra7+ Rb7 Bce2 Re8 Rf8 Qa5 Bh2 Re3 Be5 Ra3 Rf7 Kh1 Rf8 Bg2 Rf7 Bc6 Rf8 Rc1 a1Q Kg2 Qa2 Ra1 Rf7 Rb4 Bad3 Qf1 Qc4 Kg1 Qa6 R4b5 Rf8 Nd5 Rf2 Nf6 Nc4 Qa4 Qea5 R1a2 Nd2 Ra1 Bg4 R1a2 B1e2 Qb1 Bf1 Ra1 Bd1 R1a2 B3e2 Ra1 Rf3 R1a2 Rg3+ Kf2 Rf3+ Ke1 Rf2 Ra1 Q5b6 Qc4 Qa4 Rg3 Qb4 Rc3 Ra3 Re3 Rd3 Raa7 Qa6 Qca2 Qba5 Qaa1 Rc3 Re4 Rcf3 Ra4 Rg3 Ra3 Nf3+
qr3N2/1RQ3n1/2Qr3P/2QpQ1BN/3n3n/1n1p4/N2q1qn1/1b1kn2K w - - 0 1 legal: proof: f4 b5 d4 a5 b4 axb4 f5 c5 a3 cxd4 f6 b3 Kd2 b2 Qe1 b4 Qd1 b3 Ke1 exf6 Bh6 f5 Bc1 f4 Ra2 Bb4+ axb4 g5 Ra5 g4 Rc5 Na6 Rc3 Nb8 Rf3 h5 g3 Ra5 Bh3 gxf3 g4 Ra2 g5 Ra8 Bg4 hxg4 Kf1 Ke7 e4 Ke6 c4 Ke5 h4 d5 b5 f5 h5 f2 Kg2 f1N h6 g3 g6 f3+ Kh3 g2 g7 f2 c5 f4+ Qg4 f3 c6 Ne7 g8Q Ng3 Kh2 f1N+ Kh3 f2 b6 Ra6 c7 Nef5 b7 Nc6 b8Q Nh4 Qb7 Nh5 Qa7 Ne3 Kh2 f1Q Qf7 Ng7 Nh3 g1N Bd2 Neg2 Nf4 Qf2 Nc3 b1N Qg5+ Bf5 c8N b2 Nb6 Qa8 Nh5 Rb8 Bc1 Nd2 Na2 b1Q Qfc7+ Ke6 e5 Qb4 Qe3 Bc2 Qc3 Kf5 e6 Ke4 e7 d3 e8Q+ Kf3 Qee5 Nd4 Nd7 Rd6 Q3c6 Qa5 Qac5 Qc3 Qf5+ Ke2 Nf8 Ngf3+ Kh3 Nc4 Bg5 Na5 Rb1 Nfe1 Kh2 Qd2 Rb7 Kd1 Qe5 Nab3 Kh1 Bb1
1Q1QNbKr/2n2R1n/r1q1P3/1b3b1Q/4qb1B/4nr1b/2B1Qq2/1bkB4 w - - 0 1 illegal: No possible last move
N1b2R1q/k1b2q2/5Pbq/q1N2n2/1N1b1r2/1B5Q/1K2rbQ1/Nbnq1Q2 w - - 0 1 illegal: No possible last move
b1k2Nr1/b1p5/2Q1NPQ1/6N1/b4b2/bR1B1b2/1qqnNQn1/brn2K2 w - - 0 1 legal: proof: f4 a5 c4 g5 a4 f5 g4 d5 e4 dxc4 b4 fxe4 f5 axb4 Bb2 h6 Be5 Qd5 Bf4 Qd8 Ra3 Ra6 Rg3 gxf4 g5 Ra7 g6 Ra8 Rg5 hxg5 d4 Kd7 h4 b5 a5 e5 g7 e3 d5 f3 h5 c3 d6 e4 h6 f2+ Ke2 g4 h7 b3 a6 b2 a7 c2 Rh2 c1B Bg2 f1B+ Ke1 e2 Qd5 g3 Rh5 b4 Qd4 b3 Qb6 Bb7 Bh3 g2 Rg5 Bf4 Qa6 Qf6 Qd3 Nc6 Na3 b1B Nc2 b2 Nb4 Nd4 Na6 Kc8 Qb3 Bc2 Qd3 b1Q+ Qd1 Rb8 a8Q Nb3 Qa7 Ba8 Qf2 Qfb2 Qc1 Nf6 Rg3 Rg8 h8N Bd1 Re3 Q1c2 Nf7 Rb4 Nb8 Rb5 Qa1 Nc1 Qa4 Rb6 Qc6 Rb3 Nf3 g1B Nd4 Bg2 Ng5 Bf3 Nd7 Be7 Nf8 Rb4 Qg3 Rb8 Rb3 Rb7 Nde6 Ba7 Nd4 Rb4 Kf2 e1N+ Kf1 e3 Qf2 Ne4 Ne2 Ng2 Bg4 Rb6 Bh5 Bf6 Bg6 Bc3 f6 Nd2+ Kg1 Bb4 Bd3 Ba3 d7+ Kb8 d8N Kc8 Ng3 e2 Nde6 e1B Ne2 Rb5 Qe3 Beg3 Qf2 Be5 Nd7 Bgf4 Ndf8 Rh8 g8Q Rb8 Qh7 Rg8 Qf5 Qa2 Rb6 Qcb1 Qg6 Ba4 Rb3 Qbc2 Rc3 Rb1 Rb3 Ba1 Qf5 Qab2 Qg6 Nc4 Kf1 Nd2+
Rqq1B2N/RQ1Q4/b2qr3/2Q2R2/4qP1k/Kn2qRb1/1r1n1p2/b3bn2 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 g5 cxd4 g6 e5 Be3 e4 Bd2 e3 Bc1 hxg6 Nh3 g5 Ng1 g4 f3 b3 Bd2 Rh7 Bb4 Be7 Bd6 Rh3 Bg3 Bf8 Bf2 Rh8 Nd2 f5 Ne4 exf2+ Kd2 Ba3 Nc5 Qc7 e4 Qd8 e5 Bb4+ Ke2 Ba3 Ne4 fxe4 Kd2 Bf8 Kc1 Kf7 Kb2 Kg6 a4 Kh5 c4 b5 h4 g5 a5 d5 c5 e3 e6 b4 c6 d3 f4 e2 a6 e1B c7 d2 a7 d4 e7 d3 e8R Na6 Ra2 Bg7+ Re5 Nc5 Ra6 Rh6 Qc1 d1Q Rh3 g3 Re6 g2 Rg3 d2 Rb6 Rb8 a8R Nf6 Nf3 g1B Nd4 Bh2 Ne6 Nfe4 Rd6 Ba6 Kb1 b2 Ka2 b3+ Ka3 b1Q c8Q b2 Qc6 Qc8 Bh3 Bh8 Bf5 g4 Ng5 Re6 Rb3 g3 Qa4 g2 Nf7 Bg3 Rd7 Qd3 Qc3 b1Q Rda7 Qd1c2 Rd5 d1Q Qd7 g1N Bg6+ Kg4 h5 Nf3 h6 Nh2 Qb2 Nf1 h7 Kh4 Rc3 Q3d2 Rf3 Qe3+ Qb3 Ba1 h8Q+ Kg4 Qhc3 Kh4 Rf5 Qd6 Qcb4 Ned2 Nh8 Qce4 Be8 Rb7 Q4c3 Rb8 Qd5 Qbb7 Qdb3 Qbc7 Qd5 Rb2 Qb7 Ncb3+ Qc5 Q7b8
N3q3/1r5n/q2bK3/QNQB1r1P/3Qnp1k/1bb2r1N/3N4/rb1qb2R w - - 0 1 legal: proof: b4 c5 a4 e5 f4 h5 g4 hxg4 d4 cxd4 f5 a5 Ra2 axb4 e4 f6 Ra3 Nh6 Rf3 Ng8 Rf4 exf4 e5 b3 e6 Rh7 Ba3 Rh5 Bd6 Rh8 Be5 fxe5 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 b5 c4 b2 a5 d3 c5 g3 f6 d2 f7 g2 a6 e4 h3 b4 e7 b3 e8N e3 c6 e2 a7 e1B c7 Rh5 Qc1 d1Q+ Qd2 Na6 Ke5 d5 Nc3 b1R Qb2 d4 Nd6 d3 Qc1 b2 Nce4+ Kh4+ Ng5 d2 Rh2 Qa4 Qc4 d1Q Qa2 Nc5 Qa3 Qa6 Bb5 Ne4 Qc3 Be6 c8N Ngf6 Qb4 Bb3 Bc6 Nh7 Bd5 Qe8+ Kf5 Be7 Nb5 Bd6 f8Q Ra1 Qd2 b1B Nb6 Rb8 a8Q Rb7 Qd4 Ra3 Rh1 Bc3 Ne2 g1B Ng3 Bf2 Nf1 Bfe1 Nd2 Ra1 Qe7 g6+ Ke6 Ra3 Nf7+ g5 Qd8 Ra1 Na8 Ra3 Qa5 Ra1 Kf5 Ra3 Qee5 g4+ Ng5 g3 Qc5 g2 Qed4 Qd8 Ke6 g1R Nf7 Rf5 Ng5 Kh5 h4 Qb8 Qcc7 Qe8+ Qe7 Kg4 h5 Rg3 Nh3 Ra1 Qe3 Rf3 Qd4 Qd8 Qec7 Kh4 Qcc5 Qe8+
4r1Qr/brNQN3/n1bp4/r4K2/7q/q1nkq2P/2qB3N/1RqN2qQ w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 gxf4 a4 h5 d5 e5 g5 e4 Bh3 c6 Be6 cxd5 Ra3 d4 Bg4 hxg4 Rf3 exf3 Kf2 Ke7 c4 Kd6 e4 Ke5 g6 b5 c5 f5 g7 b3 a5 d3 h3 Kd4 e5 b2 a6 g3+ Kf1 g2+ Kf2 d2 a7 b4 e6 b3 e7 Na6 e8Q Bb7 c6 Bc5 c7 d6 c8Q Nf6 g8N Nd5 Na3 b1Q Qg6 b2 Qg3 Qc2 Rh2 b1R Qe6 Nc3 Qe8 Qh4 Nf6 Bc6 Qb8 Rb7 Qg8 Re8 a8N Ba7 Rh1 Kd3+ Nb6 Qa2 Qe1 d1Q+ Ne2 Qdc2 Nb5 Qa3 Bd2 g1R Qa1 Rb1 Nc7 Rb5 Rb1 Rc5 Kg1 Ra5 Q3g4 f2+ Kh2 f1Q Nc8 f3 Ne7 f4 Qd7 f2 Ng4 f3 Qf7 Nb5 Nc3 Qe1 Nd1 f1Q Qfg7 f2 Qg8 Qf6 Kg3 Qh4+ Kf4 Qe3+ Kf5 Qg1 Nh2 f1Q+ Nf3 Qfe2 Nh2 Qcc1 Qe5 Qeg2 Qf4 Q2f2 Qf3 Qe2 Qh1 Qeg2 Bb4 Qgc2 Bd2 Nc3+
1n1n1qrn/3nQq2/r2N1p2/1Qpq1NRB/2r1N1n1/1b2bK2/k6P/2Q4Q w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 e5 a4 exf4 Kf2 d5 Bb2 dxc4 Ke1 h6 Be5 f3 Bf4 Ra6 Ra3 Ra8 Rd3 Bc5 Rd5 gxf4 g5 Be7 g6 Bf8 Rg5 hxg5 Kf2 Kd7 e4 Kc6 d4 b5 g7 g4 d5+ Kc5 e5 c3 d6 g3+ Ke1 c2 e6 c1N d7 b3 a5 Kb4 a6 c5 a7 f2+ Kd2 g2 e7 f3 Ke3 b2 e8Q Ne7 g8Q Nb3 Qe2 Ng6 Qd3 Nd4 Qd2+ Kb3 Nh3 g1N Qe1 b4 Qc3+ Ka2 Qd2 b3 Qc1 Bh6+ Ng5 Ndc6 Qh7 Rg8 Nd2 b1R Bd3 f1N+ Ke4 f2 Qh8 b2 Ne6 Be3 Qe5 Nf3 Nb3 Nh8 Qg7 Nfe5 Be2 f6 Qee7 Qf8 d8N Ned7 Nb7 Nd8 Kf3 Ra1 Nd6 b1Q Qgf7 Qh7 Qfe8 Qhf7 Ng5 Ba6 Nge4 Bc4 Nd4 Bb3 N4f5 Qd5 Qd1 Rc1 Rg1 Rc4 Rg4 Ng3 Qe1 Nh1 Rg5 Qdf7 Qc1 f1Q+ Kg4 Qd1 Kf3 Qdd5 Bd1 Nb6 Qb5 Nf2 Be2 Ng4 Bd1 N6d7 Be2 Na6 Bd1 Rb8 a8Q Rb6 Be2 Qe5 Qd5 Nab8 Qdd1 Ra6 Qh1 Nf2 Kg2 Qed5 Bh5 Ng4 Kg3 Qb7 Kf3 Qbd5
N4Q2/nKPbB3/qQ3Qq1/1R2r3/qb2Qnnn/B2p1np1/1r1n3k/7B w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 gxf4 a4 h5 d5 e5 g5 e4 Nd2 c6 Rb1 cxd5 Ndf3 d4 Rb3 Bh6 Ne5 Bf8 Ng4 hxg4 Rf3 exf3 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 d5+ Kb5 b3 c4 d3 h4 d4 e4 d2 g6 b2 h5 b1N g7 f2 h6 f3 a5 Kf4 h7 Kg3 c5 f4 c6 Nh6 g8Q Bb4 e5 Nf5 e6 Nh4 e7 Bd7 e8Q Nc3+ Kc4 b5+ Kb3 Ne2 a6 Qa5 c7 Nc6 a7 Rb8 a8Q Na7 Bg2 f1N Nh3 f2 Qef8 f3 Qff7 Nf4 Qc8 Ne3 Qf5 f1N Ba3 f2 Qdb1 Re8 h8B Re5 Qae4 Nh2 Qf6 f1N Qcf8 N2f3 Rg1 d3 Bh1+ Kh2 Qb2 g3 Qb1 Nfg2 Nf4 Ng4 Nd5 Nf4 Nb6 Rb7 Na8 d1Q+ Ka2 Qda4 Rg2+ Kh3 Rb2 N1d2 Qg1 Rb8 Qgb6 Kh2 Rb3 Be7 Bg7 b4 Bh6 Bd6 Bg5 Rb7 Rb1 b3+ Kb2 Qd5 Kc3 b2 Qff5 Qf7 Be7 Qg6 Q5f6 Bc5 Rf1 b1Q Rd1 Qbb5 Rb1 Ng5 Rb2 Qba6 Rb5 Bb4+ Kd4 Q6a5 Qd5 Bc3+ Kc5 Ngf3 Kd6 Rb8 Qe4 Bb4+ Rc5 Bf5 Qbc6 Bc3 Rd5 Rb5 Qb6 Rb2 Rb5 Bb4+ Qc5 Nc8+ Kc6 Na7+ Kb7 Bd7 Qcb6 Qa6+
K5N1/qRR1r1Pk/1p2nr2/q1b1R3/6Bp/QRn2qQb/2q5/q1nQ2n1 w - - 0 1 illegal: No possible last move, all moves rejected
1b2r1R1/Rq4R1/2bQRNb1/1QK2qk1/3bq3/Pp3nBr/nq1p4/5Q1n w - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 b6 e4 Bh3 axb6 Nd2 b5 Bg4 hxg4 Ndf3 exf3 Be3 b4 Bd2 Ra5 Bc1 Ra8 Kd2 Ke7 Kd3 f5 Kc4 d5+ Kb5 f2 h4 f1N e4 g3 c4 g2 a3 f3 c5 f4 c6 b3 c7 f2 e5 b2 g6 b1Q+ Kc5 b5 h5 f3 e6 Kf6+ e7 b4 h6 b3 h7 d3 g7 d2 Qe1 d1Q Bh6 d4 Bf4 d3 Kc4 d2 e8R Qe4+ Kb5 Nh6 g8Q Na6 Bh2 Nb4 Qc4 Ng3 Qe6+ Kg5 Qe5+ Nhf5 Re7 f1Q+ Kc5 f2 Kb6 Qdf3 Qd1 Bb7 Re8 Bg7 Qb1 Qf6+ Re6 Na2 c8Q Bc6 Qa6 Rae8 Ne2 g1B Qeb5 Qb2 Nc3 Be5 Nd5 Nd4 Kc5 Qff5 Qd1 Nf3 Nf6 Qg2 Qde2 f1B+ Qf2 Nh5 Bg3 Bh2 Rc1 Be2 Qf1 Bd3 Rg1 Qh1 Rc4 Bc2 Ra4 Bb1 Bf2+ Ng3 Qab6 Qg2 Ra7 Nh1 Qd8 Bhf4 Bg3 Bb8+ Qd5 Bfe5 Qd6 Qge2 Qb6 Qa6 Qbb5 Qb7 Rg2 Rhf8 h8R Bc2 Rh7 Rh8 Rf7 Rh3 Rg7+ Kh6 Rg5 Qh4 Ra8 Qfh7 Rg8 Bf5 Bf2 Qe4 Ra7 Qhf7 R2g7 Bg6 Nh7 Qff5 Nf6 Kg5 Bg3 Bd4+
2b1K3/b3Nr2/qkr2q1N/pBr2p2/b2R2Q1/1P2Q3/1QnrnQ2/qq2N3 w - - 0 1 legal: proof: g4 c5 a4 e5 d4 cxd4 f4 exf4 g5 b5 Kf2 bxa4 Ra3 h6 Rc3 f3 Rc5 g6 Rf5 gxf5 g6 Qc7 Be3 Qd8 Bg5 hxg5 Ke1 f4 Kf2 d5 c4 Kd7 e4 Kc6 h4 a5 h5 a3 e5 d3 c5 g4 e6 d4 g7 a2 e7 a1Q e8N d2 h6 d3 h7 Ne7 g8Q Na6 Ng7 Nd5 Rh4 Qf6 Rh1 Nab4 Qe2 d1B Nc3 d2 Nf5 Nc2 Nh6 Ra6 Rh4 Kc7 c6 Kb6 c7 Bc5+ Qe3 Qb1 Nce2 Nc3 Ng3 Ne2 Qf8 Rg8 h8Q Rg5 Ngf5 Bd4 Ne7 Rc5 Bh3 g3+ Kf1 g2+ Kf2 Nb4 Bd7 Ba4 b3 d1R Bb5 Nc2 Rg4 Rd2 Rh4 Bb7 c8Q Qa1 Qg4 Bc8 Nh3 g1R Ng5 Rc1 Ne4 Rc6 Nc5 Ra7 Nd3 Qb1 Ne1 Qa1 Kf1 f2 Kg2 f1Q+ Kh2 Qg1+ Kh3 f3 Qhg7 Qe5 Qf6 f2 Q8g7 Qd6 Qff5 Bc5 Qb2 Qf6 Qff3 f1Q+ Qg2 Nf4+ Kg3 Qh1 Qgf2 Qhg1+ Kf3 Ne2+ Ke4 Bd4 Kd5 Qb1 Qgh3 Qgg6 Rf4 Qd3 Qg4 Qc3 Qa3 Qca1 Qb2 Qh4 Bd3 f5 Rf3 Kb7 Qeg5 Na3 Rf4 Ng1 Neg8 R1c3 Re4 Nc2 Qge3 Qf6 Be2 Bc5+ Rd4 Rc4 Bd3 Ka6 Be2 Rf7 Ne7 Ba7 Bd3 Kb6 Be2 Rc3 Bc4 Qd3 Ba6 Ne2 Bc4 Qg7 Ba6 Rc7 Kd6 R3c5 Bc4 Qe4 Ba6 Qb7 Bc4 Qa6 Bb5 Bb7 Ke6 R7c6+ Kd7 Bc8+ Ke8 Qf6
QnRnQ2r/1b1Q1q2/1b4RK/RNpP1r2/Bq3kpb/1b2b3/p7/n5Q1 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 c5 bxa4 c6 g5 Qb3 g4 Nf3 g3 Ng1 dxc6 Qc2 c5 Qd1 c4 b3 h5 Ba3 Qf6 Bc5 Bh3 Bf2 Qh4 Qc1 gxf2+ Kd1 Qf6 Qc2 Bd7 Kc1 Bc8 Qd1 Qd8 g4 Ne7 g5 Qd4 Nc3 Qd8 Ne4 Ng8 Nf6+ Ke7 Ng4 hxg4 Bg2 Kd7 Bf1 Ke8 d4 Kd7 Kd2 Ke6 h4 Kf5 d5 a5 g6 a3 e3 f3 h5 c3+ Kd3 a2 h6 a4 h7 c2 g7 c1B b4 a3 b5 Bc5 b6 Qf8 b7 Bb6 e4+ Kf4 e5 f5 e6 Qb4 e7 c5 e8R Ne7 g8Q Be3 Qb1 Nec6 Rh5 Nd8 Qe6 Ra4 Be2 f1N Rg5 f2 Qd7 Nd2 Rg6 f1Q Nf3 Nb3 Nd4 Qf2 Qg1 Qf3 Re1 a1B Nb5 Bf6 Ra1 Bh4 Bd1 Ra6 Ra2 Na1 Ba4 Ra8 Rb2 Rf8 h8Q a2 Rb3 Qfe4+ Ke2 Qe7 Ra3 Qf7 Kd3 Kf3 Qe5 f4 Qee7 Rh8 Reg8 Rh5 Qee8 Rf5 Rh8 Nbc6 b8Q Bb7 Qa7 Rc8 Qa8 Nb8 Qc1 Kg3 Rf8 f3 Qg1+ Kf4 Rh8 f2 Rhg8 Bc1 Ke2 Be7 Rf8 f1B+ Kf2 Ke4+ Kg3 Be3 Rfg8 Bc4 Rh8 Rf6 Kh4 Bb3 Kh5 Kf4 Kh6 Rf5 Qg8 Ndc6 Qf8 Bc2 Bb3 Rd8 Ra5 Bh4 Ba4 Bb3 Qfe7 Rg8 Qed8 Rg7 Re8 Rg8 Q8e7 Rf8 Rc8 Nd8 Qee8 Rh8+
QNR2r2/5bqr/2q3QP/1k1q1p1Q/3b2nB/Kr1pq3/n3BBp1/1Q3q2 w - - 0 1 legal: proof: d4 h5 b4 c5 f4 cxd4 g4 hxg4 f5 a5 a3 axb4 f6 e6 e4 Rh6 a4 Na6 e5 Rh8 Ra3 Nb8 Rf3 Qa5 Nc3 Qd8 Ne4 Bd6 Rf5 Bf8 Ng5 exf5 e6 Rh4 e7 Rh8 Ne6 fxe6 Bh3 Kf7 Bg2 Nc6 Bf1 Nb8 Kd2 Ke8 c4 d5 Kc2 Kd7 Kb3 Kc6 e8Q+ Qd7 h4 b5 h5 g5 h6 d3 c5 g3 f7 g2 a5 d2 a6 e5 a7 g4 Nh3 g1Q Bd3 d4 Ba3 e4 Rh2 e3 Kb2 b3 Qa1 d1Q Nf2 b4 Qb1 g3 Nh1 e2 Nf2 e1Q Qc2 Nf6 Qce2 Bg7 f8B Rh7 Q8e3 Na6 Qe8 Ng4 Ne4 g2 Rh4 Qe3 Nf6 Qf1 Qg6 Qd5 Be7 Be6 Nd7 Rf8 Qe1 Qd1f3 Be2 d3+ Bf6 Qg3 a8Q+ Kb5 c6 Bf7 c7 Qgd6 c8Q Q6c6 Nb8 Bh8 Kb1 b2 Qe8 Bg7 Bg5 Bd4 Bd8 Qff4 Rh1 Qfe5 Bh4 Qg7 Qd1 Kb6 Qb3 Kb5 Ka2 b1R Rc1 Qe7 Rc4 Qe3 Qd1 Rb3 Qc2 Nc5 Bb2 Ne4 Qb1 Nc3+ Ka1 Qcd7 Rc8 Q7c6 Qh5 Na2 Bc3 Ra3 Kb2 b3 Qe6 Ra7 Qd6 Rb7 Ka3 b2 Bce1 Rb6 Qdg6 Rb7 Qc2 b1Q Bef2 Qf1 Qb1+ Kc5 Rc7 Rb4 Rc8 Kb5 Qc2 Rb2 Qb1 Rb3+
8/Q1R1Pqnb/5n1b/Kqp4p/prQn4/1NnNr3/3Q2N1/q1Q1rkB1 w - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 dxc4 f5 g6 f6 exf6 h5 f5 Qc2 f4 Qb3 Be6 Qd1 Bc8 g4 Nd7 b4 Ne7 h6 Nb8 Ra3 Ng8 Rah3 Na6 R3h2 Nb8 Rh5 gxh5 g5 Qd6 g6 Qc5 g7 Qf5 Bh3 Qd7 Bf5 Qd8 Bg6 hxg6 d4 Ke7 Kd2 Kf6 Kc3 Kf5 h7 Ke4 e3 c5 d5 a5 b5 f5 b6 g5 d6 a3 d7 g4 b7 a4 Nf3 g3 Qb3 a2 Rh3 a1Q+ Qb2 g2 Ne1 g1N Nd3 f3 Rh1 f2 Bd2 Kf3 e4 Kg2 e5 f1Q e6 f4 Nb4 f3 Na6 f2 Be3 Qe7 d8Q Qf7 Nb4 Nc6 b8Q Nd4 Nd2 Nf6 Qa7 Rb8 Nd3 Rb4 g8Q+ Bg7 Nb3 Nge2+ Kd2 Qfb1 Rf1 Nc3 Qc1 Bb7 Rd1 Be4 Qd5 f1R Bg1 Nf5 e7 Re1 Qgd8 Rf8 h8N Kf1 Ng6 Bh6+ Ngf4 Ng7 Qe6 Bh7 Qd4 Ra8 Qee3 Rab8 Ng2 Ne2 Qg5 c3+ Ke3 c2 Qc4 Nd4+ Kd2 Qa3 Kc3 R8b6 Qge3 Re6 Qed2 Re3 Qd5 Rb8 Kc4 Qaa1 Qb7 Nc6 Kb5 Nd4+ Ka5 Qbb2 Qc7 Rb4 Qc4 Qbb1 Qa7 Qbb2 Qb1 c1N Qbc2 Nce2 Qcc1 Nc3 Ne5+ Rd3 Qe3 Ndb5 Nd4 Rb3 Rd2 Qbb1 Rb2 Ne2 Qed2 Re3 Nd3 Nec3 Nh4 Nc7 Ng2 Rb8 Rb4 Nce6 Rb7 Qb3 Rd7 Qb7 Nb3 Nd4 Rc7 Qc6 Qca6 Rb4 Qc4 Qb5+
Q6b/2k1rnK1/1N3pB1/Rb2pP2/2q2R1R/r1rnbb2/2pq1Q2/rQ2Q3 w - - 0 1 illegal: No possible last move
1Qbn3b/3kN1rr/np6/p1B5/nbKPq1p1/2pN4/1rR2QQN/1n3N2 w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 h5 a4 hxg4 b5 b6 a5 bxa5 b6 a4 c4 Nc6 b7 Nd4 Bg2 Nc6 c5 d6 Bd5 Nb8 Bc4 d5 Ra2 dxc4 Rb2 Qd6 Rb5 Qd8 Rb6 cxb6 h4 a5 e4 f5 Ke2 g5 c6 g3 e5 g4 c7 g2 e6 f3+ Ke3 f4+ Ke4 a3 d3 a2 h5 a1B e7 f2 h6 f1N h7 f3 Nd2 f2 Qc2 Ra7 Ngf3 g1N Rh2 Kd7 Kd5 Nh6 Ba3 Nf7 Bc5 Na6 b8Q Ne2 e8N Be5 d4 Qe7 Ng7 Nd8 Nh5 Rg8 h8Q Rg7 Qg8 Rh7 Qa2 Bh8 Nf4 Qe3 Nd3 Bd6 Ne4 Nd2 Ng3 f1R Qf8 Rb1 Nf1 Rb2 Rg2 Nb1 N3h2 Qe8 Qf2 Be7 Ke4 Nec3+ Ke3 Bb7 c8N Bd6+ Ne7 Bc8 Rg1 Rc7 Rg2 Na4 Ke4 c3 Kd5 Ra7 Kc4 Qg6 Qg1 Qe4 Rc2 Ke8 Qg2 Rd7 Nf5 Rdg7 Ne7 Kd7 Rc1 Rb5 Qaf2 Rb2 Rc2 Ra2 Ba3 Bc5 Bc1 Ba3 Bf4 Bb4 Bd6 Rb2 Bc5 Qe2 Rc1 Qe3 Rc2 Qe4
3K3n/2b3b1/rr1p2Qp/n1p2N2/4qRbP/1BpN4/1Qnk2n1/N4QNb w - - 0 1 legal: proof: d4 e5 e4 exd4 c4 f5 b4 a6 b5 axb5 Qc2 bxc4 Qd1 c3 f4 g6 a4 Qf6 e5 Qe7 Ra2 Qd8 Re2 g5 Re4 fxe4 f5 Ba3 Be3 Bf8 Bf4 gxf4 Ke2 Ke7 h4 c5 g4 b5 a5 h6 f6+ Ke6 f7 Kd5 a6 Kc4 e6 d3+ Kf2 f3 Ke3 f2 Kf4 b4 Ke5 e3 a7 b3 e7 b2 Kd6 e2 g5 e1B g6 Qe8 Kc7 Bg7 f8Q Bb7 Be2 f1N Bh5 d2 Qc1 Kd3 Na3 d1B Rh2 b1N Rf2 Bh1 Rf4 Nc6 Nc2 Na5 Qb2 Ne3 Na1 Na3 Bf3 Ng2 Bd5 Nc2 Bb3 Rb8 a8N Bg4 Nb6 Kd2 Nd5 Bg3 Nb4 Rb6 Nd3 Qa8 e8N Ne7 Qf6 Qe4 Nd6 Ra8 Nf5 Raa6 Kd8 Bh2 Rf3 Bb8 Rf4 d6 Qf7 Be5 g7 Ng6 g8Q Nh8 Qgg6 Bg7 Qb7 Qe6 Qf3 Qe4 Qf1 Bc7+
1BQK1Q2/2bQ1bP1/r1bp1n1Q/p6q/1r3R1p/5pbp/2k2NnN/3n3N w - - 0 1 illegal: No possible last move, all moves rejected
2b3rB/1nk4b/q1q2Nb1/bpP2r2/3B3b/2N5/B2R4/BBnNK1bq w - - 0 1 legal: proof: d4 a5 a4 g5 b4 axb4 h4 gxh4 e4 f5 exf5 c5 Ra3 bxa3 Qf3 cxd4 c4 Nc6 Qh3 Nb8 Qc3 dxc3 g4 h5 f4 e5 a5 b5 f6 d5 f7+ Kd7 a6 h3 a7 a2 g5 a1B f5 h4 f6 c2 g6 d4 g7 e4 Be3 c1Q+ Kf2 h2 Bd3 h3 Bf1 d3 Nc3 d2 Na4 d1B Nf3 Ne7 g8B Qb6 Bd4 e3+ Ke1 e2 Nc3 Kc7 Nh4 Nf5 Nf3 Nd7 Bg2 Bc5 f8B Nd6 f7 Rh5 Bfg7 Qa6 f8B Bc2+ Nd1 Rf5 Be6 Ne5 Bh8 Bc3+ Nd2 Ba5 Bfg7 Nb7 Be4 Bd3 Rf1 h1B Rf2 h2 Rg2 Bc2 Ba1 Bg1 c5 Qc6 Bd4 Qa1 Ba2 Bd3 Rf2 Bb1 Bc2 Be4 Bf6 h1Q Rh2 Rb8 a8N+ Kd7 Nb6+ Kc7 Na4 Bd3 Nac3 Be4 Nf1 Nd3+ Kd2 Ra8 Ng3 Nc1 Nh5 Rb8 Bfg7 Bd3 Nf6 Ra8 Nb2 e1B+ Kd1 Bh4 Rd2 Bc4 Be4 Bf7 Bc2 Bg6 Be4 Rf2 Ke1 Bd3 Nbd1 Bh7 Bed5 Bdg6 Bb1 Qa2 Bde4 Qae6 Ba2 Qed6 Beb1 Qa6 Bg8 Qdc6 Bga2 Rf5+ Bf2 Qh2 Nfe4 Bd7 Na4 Bd8 Ba1 Bh4 Nf6 Qhh1 Nac3 Rb8 Bd5 Rg8 Bda2 Bg5 Be3 Bc8 Bd4 Bh4+
b4R2/4r1p1/1qkp1NB1/1n3Rn1/RB2R3/P1Bp4/1R6/nrnbnr1K w - - 0 1 legal: proof: f4 a5 d4 e5 b4 axb4 d5 exf4 a3 b3 Qd4 c6 Qb2 cxd5 Qa2 d4 g3 bxa2 Bg2 f5 Be4 f3 Nd2 f2+ Kd1 f4 Ndf3 Bd6 Ng5 h6 Bg2 hxg5 Bh3 f3 Bf1 Bf4 gxf4 g4 h4 b5 c4 b4 e4 b3 f5 b2 f6 b1R f7+ Ke7 f8B+ Ke6 h5 g3 h6 g2 e5 Qc7 c5 Kd5 h7 Nh6 e6 Nc6 e7 Ra6 e8R Na7 c6 Nb5 Ne2 g1N Bb4 d6 Re4 Ra7 Ng3 Ne2 Rhh4 Qb6 c7 Rf8 h8R Nf7 R8h5+ Kc6 Rf5 Bb7 Nh5 Ng5 Nf6 Ba8 c8R+ Rc7 Bh3 f1B Ke1 d3 Rhf4 Rf7 Rf8 Rce7 Bg4 Bh3 Bh5 Bg4 Kf1 f2 Kg2 f1N Bg6 Nd2 Bb2 Ndf3 B2c3 Ne1+ Kh1 Bh5 Rg4 Nc1 Rh4 Bd1 Rhf4 Rb2 Rb1 Rb3 Rb2 a1N Rg2 Rb1 Rb2 Nc7 Ra5 Nb5 Ra4 Re5 Rf5 Rfe7 Rg4 Re4 Rh4 Rf4 Rg4 Rf2 Re4 Rf1+
q2bk1rB/rBB1rnp1/pnb2n2/RR1PB2N/4r3/R2Kp3/1B6/2r5 w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 Ra2 fxe4 Ra6 Be6 Ra1 Bc8 g4 h5 b4 hxg4 Qb3 cxb3 Nc3 Rh5 Na2 bxa2 Nh3 Rh4 Ng1 Rh8 Ke2 e5 d4 c5 f4 g3 h4 g2 d5 e3 f5 e4 f6 c4 h5 c3 f7+ Kd7 h6 c2 h7 Bb7 b6 Be7 f8B Bc6 b7 Ke8 b5 Nf6 b6 Rg8 h8B Nbd7 Bb2 c1R b8B a6 b7 Rc4 B8e5 Ra7 b8R Nb6 Nh3 g1R Bg2 Rgc1 Nf4 Rb4 Rb7 Qa8 Bh3 Bd8 Bfd6 Rbc4 Nh5 Ra4 Rb1 a1R Bc7 Rd4 Bc8 Raa4 Rd1 Rac4 Ke1 e2 Ra1 Rd2 Kf2 e1N+ Ke3 Nf3 Ra5 Ng5 Rf1 Rdc2 Rf3 Nf7 Rb8 Rg2 Bb7 Rg4 Kd2 Ra4 Rb3 e3+ Kd3 Rac4 Rba3 Rce4 Bf4 Re7 Bfe5 Nbd7 Bc8 Rgc4 Rbb5 Nb6 Bb7 Re4
n3B1NN/2kB1N2/1q3q2/b2B1p2/4Bpbp/1q1P4/R1n2b2/rbq2B1K w - - 0 1 legal: proof: e4 e5 c4 d5 a4 dxc4 f4 Kd7 g4 g5 h4 b5 h5 h6 f5 a6 f6 Kc6 Qf3 a5 b4 axb4 Qf4 exf4 e5 Ra6 Bb2 Kd5 Bd4 Re6 Ba7 Re7 e6 Kc6 Bf2 Kd5 fxe7 Kd6 Bh4 Kc6 Ra3 Bg7 Rg3 gxh4 g5 Bf8 g6 Bd7 Rg4 Bc8 Rg5 hxg5 h6 g4 Kf2 g3+ Kg2 c3 e8B+ Nd7 g7 b3 h7 c2 d3 c1B e7 b2 a5 b4 a6 b3 a7 Nf6 g8B Be3 Rh2 Ng4 Na3 b1Q Rh1 b2 Kf3 g2 Ne2 g1Q a8B+ Kb6 Bh3 c5 Bb7 c4 Be4 c3 Nc4+ Kc7 Nd4 c2 Nd6 Nb6 Rh2 c1Q Bf1 Qa2 Nc6 b1B Rc2 Qb3 Bd7 Bc5 Rh2 Ne3 Be6 f6 Rb2 Nc2 Bgf7 Qge3+ Kg2 Bd4 B6d5 Bg4 Kh1 f5 Bfe6 Bc5 Bd7 Qd4 e8B Q8f6 Bg6 Be7 Bh5 Ra8 h8N Ra1 Bhe8 Na8 Ndf7 Bb6 Ra2 Bec5 Ne7 Ba5 Ng8 Qdb4 Ne7 Qbb6 Ng8 Bf2
qn3B1r/r7/1NBr4/B1bRNp2/1n1N1bBB/r1K2bPb/b7/n5kr w - - 0 1 legal: proof: e4 a5 b4 axb4 a4 h5 d4 c5 f4 cxd4 e5 h4 e6 h3 f5 g6 g3 fxe6 f6 e5 Qe2 e4 Qg2 hxg2 Ra3 Bh6 Rf3 Bf8 Rf5 gxf5 Kd2 Kf7 h4 Ke6 c4 Ke5 a5 d5 h5 b5 c5 e3+ Kd3 b3 h6 e2 a6 e1R h7 b4 c6 b2 f7 b3 c7 Nf6 a7 Ba6+ Kd2 Ke4 c8N e5 Bb5 d3 Rh5 d4 Nb6 Bc5 f8B Re3 Rh1 Nd5 Nh3 Kf3 Rd1 g1B Nf2 Kg2 Ne4 Nb4 Nf2 e4 Nc3 b1R Nd7 b2 Bg7 Rf3 Rf1 e3+ Ke1 d2+ Ke2 d1B+ Ke1 e2 Kd2 e1N Nb6 d3 Ng4 Nec2 Ne5 Na1 Ne2 Bge3+ Kc3 d2 Bf8 Bf4+ Bd3 Re3 Nd4 Bf3 Re1 d1R Bd2 Kh2 Re2+ Kg1 Rh2 Rg8 h8B Bab7 Bf6 Rh8 Bh4 Bg2 Nf7 Bbf3 Ne5 Bh3 Be1 Rbc1+ Rc2 b1B Bd2 Re4 Be2 Ba2 Be1 Rb1 Rd2 Re3+ Rd3 Bfg2 Bg4 Bf3 Nec6 Re7 Ne5 Rd7 Nc2 Rd6 Rd5 Rb2 Nd4 Rh2 Na4 Rh1 Nb6 Rd3+ Kb2 Ra3 Bd2 Nbc2 Ba5 Bb3 Kc3 Nb4 Kb2 Qc8 Kc3 Ba2+ Kb2 N8a6 Bd8 Rb8 a8B Rb7 Bh4 Ra7 Bb7 Qa8 Bc6 Nb3 Kc3 Nb8 Bh6 Nd3 Bg7 Nb4 Bf8 Na1+
3b4/2r1R3/1RRB2Bb/1pP3b1/1qrnbb1R/4B2p/3r1Rq1/K1N1kn1b w - - 0 1 legal: proof: d4 a5 h4 g5 e4 c5 g4 cxd4 b4 axb4 Nd2 f5 Ndf3 fxe4 h5 h6 Nh4 Ra4 Qd2 gxh4 g5 Ra6 g6 Ra8 Qg5 hxg5 Kd1 d5 a4 Kd7 f4 Ke6 c4 Kf5 Kc2 Kg4 Kb1 Kg3 a5 Kf2 g7 e5 c5 b5 a6 b3 a7 e3 f5 e2 h6 e1B h7 b2 f6 e4 f7 h3 Bc4 g4 Ne2 d3 Ra2 d4 Bd5 d2 Bc6 d1Q Ra6 d3 Ra2 e3 Nf4 g3 Rg1 g2 Rh1 g1B Ng2 e2 Ne3 d2 Bf3 Qd4 Bd5 Ne7 g8R Bh6 f8B Bb7 Ra4 Bh2 Bf7 Nbc6 Bb3 B2f4 Rg6 Nd5 Be7 Qb4 Re6 Rac8 a8R Rc7 Bd6 Nd4 Nc2 Ne3 Ra2 Nf1 R8a6 Bhg5 Rg1 Bh1 Rc6 Re8 Re3 Re4 Na1 Bd8 Raa6 Qc2+ Ka2 d1R h8R Bfg5 Rab6 Bd2 Bf7 e1B Nb3 b1B+ Ka1 Rg4 Ree8 Bdf4 Rh4 Bed2 Bg6 Bh6 Rf8 Ke1 Rf5 Bfg5 Rf2 Bdf4 Be3 Rd2 Nc1 Qe4 Rg3 Qg2 Rgf3 Bg3 Rf6 B3f4 Rf7 Be4 Re7 Rc2 Rd2 Rc4 Rc2 Rg3 Ra2 Rf3 Rc2 Rf2 Ra2 Rd2 Rc2 Rd1 Rf2 Rd2
2B1B3/2NrnKrQ/1n3p2/4PN2/kN2b2p/b2bq2r/nB2NnN1/5bn1 w - - 0 1 legal: proof: g4 a5 a4 c5 d4 cxd4 f4 g5 h4 e5 b4 axb4 h5 exf4 Rh4 h6 Ra3 Ra5 Rg3 gxh4 g5 Ra6 g6 Ra8 Rg5 hxg5 Kd2 b5 Kd3 d5 c4 Kd7 e4 Kc6 c5 f3 g7 f2 e5 b3 a5 b4 h6 Kb5 c6 f6 a6 b2 a7 b3 c7 g4 h7 g3 Nh3 g2 Na3+ Ka4 Qd2 b1B+ Qc2 g1N Bb2 Ba6+ Nc4 Ne7 c8B Nd7 g8N Qb6 Be2 f1B Nh6 Rg8 h8N Rg7 Kd2 d3 Kc3 d2 N8f7 d1R Qh7 Be4 Ne3 Bad3 Ng2 Qe3 Nhf4 Nb6 Nf5 Rb8 a8N Rd2 Bc1 b2 Bh5 Rd1 Nc7 b1N+ Kb2 d4 Nd8 Rb7 Nc6 Nc3 Ne2 Na2 Nb4 Rg3 Bf7 Rh3 Bh5 Bc2 Bg6 d3 Bf7 d2 Bg6 Bcd3 Be8+ Ka5 Kb3 Ra7 Bb2 Rb7 Ncd5 Rd7 Nc7 Re1 Neg3 d1N Ne2 Nf2 Nb5 Ng6 Nd5 Rg7 Nbc7 Ba3 Nb4 Rd1 Bc3 Ne7 Bd4 Na8 Bb2 Bb1+ Kc4 Rd7 Nh6 Ka4 Nf5 Qb3+ Kc5 Nd5 Kc6 Nab6 Kc5 Qe3+ Kc6 Rde7 Kd6+ Rd7+ Ke6 Bbc2 Nfg3 Ne7 Nf5 Rgg3 Kf7 Bcd3 Ba1 Rg8 Bb2 Rg7+
b3bB2/1q4b1/2p2n2/rN1p4/NN1Pn2r/n1NKB3/B2Nb1k1/n2qR2q w - - 0 1 legal: proof: f4 g5 c4 e5 b4 e4 b5 gxf4 b6 axb6 c5 bxc5 Qc2 c4 Qd3 c3 Qf3 exf3 e4 h5 g4 Ra4 g5 Nc6 Na3 Nb8 Rb1 Bc5 Rb4 Bd6 Nc4 Ra5 a4 Bf8 Na3 Ra8 Rd4 Bc5 Rd3 Bb4 Re3 Bf8 Re2 Qf6 Rg2 Qd8 Rg4 hxg4 h4 Ke7 d4 Ke6 e5 Kf5 a5 Ke4 a6 b5 a7 d5 e6 f5 e7 g3 e8N b4 h5 c2 Kd2 f2 g6 g2 h6 f3 g7 f4 h7 b3 Rh5 b2 Bc4 f1B Ba6 b1N+ Ke1 Be2 Rg5 Bb7 Nb5 Na3 Kd2 f2 Rg6 f1B Rg3 f3 Rh3 f2 Rd3 Qd7 Nf3 Nf6 g8N g1Q Ne7 Qh1 Nc6 Bg7 Nb4 c6 Rc3 Bh3 Nec7 f1Q Re3+ Kf4 Re6 Kg3 Nc3 Kg2 Bc4 Na6 N7b5 Nc5 Ba2 Nce4+ Ke3 Qf7 Nd2 Qd1 Re5 Bd7 Re6 Rag8 a8N Be8 Nb6 Ba8 Nba4 Qb7 Re5 Bf8 Re6 Rg4 Re5 Bg7 Re6 Rf8 h8B Rh4 Re5 Rf7 Re6 Qc8 Re5 Ra7 Re7 Qb7 Re6 Bf8 Bg7 Ra5 Bh6 Bg7 Re7 Bh8 Bf8 Bg7 Rf7 Ng8 Rf1 Ngf6 Re1 Nb1 Ba3 c1N Bb2 Nb3 Bc1 B2h5 Kd3 Na1 Be7 Na3 Bf8 Qg4 Nb3 Qf3+ Be3 Qd1+ Nd2 Be2+
1k2q1r1/1b1P2BK/1r3b2/n3N2B/1qBNN1n1/4NR1p/1pp1rqq1/2N4q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 h5 dxc4 Qc2 e5 Qb3 exf4 g4 h6 a4 Qd5 Qg3 Qd4 Qh4 Qd8 Ra3 Qd7 Rg3 gxh4 g5 Qd4 g6 Qd8 Rg5 hxg5 Kf2 Kd7 Kf3 f5 e4 c5 d4 Kc7 e5 b5 d5 b3 h6 b4 h7 b2 e6 h3 g7 b3 e7 g4+ Ke2 g3 Kf3 g2 e8B c3 a5 c2 a6 c4 a7 c3 Bfb5 Bb7 Bec6 Nf6 g8N Ng4 Nf6 Rg8 h8N Qe8 Nf7 Be7 Ne2 g1Q Nd4 Qe1 Ne4 Bf6 Nbd2 b1R Bb2 c1Q Ne5 c2 d6+ Kc8 Bd5 Nc6 Be2 Na5 Bdc4 Rb8 Bc3 b2 a8N Qh4 Rh2 Qh1+ Rg2 Rg1 N2b3 Re1 Bd1 Re2 Nc7 Q4e1 Nd5 Qd2 Nb5 Qd4 Ne3 Qc5 Nc1 Qb4 Bd2 Ba8 Be1 Rb6 d7+ Kb8 Bc3 Bb7 Nd4 Bh8 Ba6 Re1 Bc4 Nf6 Ng6 Bg7 Ne6 Bh8 Kf2 f3 Kg3 f2 Kh4 f1Q Kg5 f4 Kh6 f3 Rg3 f2 Bh5 Re2 Rf3 Ng4+ Kh7 Qfg2 Bf6 f1Q Nd4 Qfg1 Ne5 Bg7 Ba2 Q1f2 Bc4 Bf8 Bh8 Be7 Bg7 Bf6
1r2K2k/2R1R2q/NQ1nb2p/b2r3P/r3pn2/1N2Rnp1/2p3N1/1bN2b1N w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 f5 c4 f4 b5 a6 Ba3 axb5 Bb4 bxc4 Bc5 c3 Bd4 g6 Bf6 Bd7 Bh4 Bc8 Bg3 fxg3 f4 Be6 f5 Nc6 f6 Bd7 Bc4 Nb8 Be6 Bc8 Bf5 gxf5 Ke2 Kf7 Ke3 b5 Kf4 c5 Ke5 b4 d4 f4 a4 h6 h4 b3 a5 f3 g5 c4 d5 e6 d6 c2 d7 c1N a6 b2 a7 f2 h5 f1B Qd6 e3 Ra3 e2 Re3 e1R Ne2 c3 Nd2 b1B Qb6 c2 Nb3 Be7 g6+ Kf8 f7 Kg7 f8R Bf6+ Kd6 Nd3 Nec1 Ne7 Rf7+ Kg8 g7 e5 Ke6 Kh7 g8N+ Bg7 Rh4 Rd1 Rc4 e4 Rc7 Nbc6 Kd6 Qf8 d8N Nd4 Ne6 Nf3 Nf4 Be6 Ng2 Nc8+ Kc6 Rb8 Rfe7 Qf7 a8N Bc3 Nf6+ Kg7 Ng4 Ba5 Nf2 Nf4 Nh1 Rd5 Ra7 Rg8 Nc7 Kh8 Na6 Qh7 Rad7 Rg7 Kc7 Rgg5 Kd8 Rd4 Ke8 Ra4 Ra7 Rd5 Rac7 Nd6#
1nNb4/Q5PQ/Qp2R2r/1r1Q4/bK4bb/2rq3Q/qp4R1/1k1N1b2 w - - 0 1 legal: proof: f4 g5 b4 d5 h4 gxh4 a4 a5 c4 e5 cxd5 exf4 e3 Nd7 Ba6 axb4 Ba3 bxa3 a5 c6 Bb5 cxb5 a6 b6 Nf3 Nc5 Ng1 Nb7 axb7 Bf5 Nf3 Bd7 Ng1 Bc8 b8Q Ke7 d4 Kf6 Kd2 Kf5 Kc3 Ke4 g4 f5 g5 h5 d6 f3 d5 a2 d7 b4+ Kb3 h3 d6 h4 g6 h2 g7 f4 Qc7 h3 Qe2 f2 Qa6 f1R Qc5 f3 Qca5 f2 Nf3 Rc1 Qa4 f1B Nd4 Ne7 Rg1 h1Q Rg3 h2 Nc6 Rh6 Na7 Nc6 Rg2 Be7 Q4a5 Rc4 Nc3+ Kd3 e4 Nb8 e5 Bh4 Re1 a1B e6 Qg1 e7 h1B e8Q Qh2 Nd1 Baf6 Ka4 b3+ Kb5 Be7 Qg8 Rc3 Re6 Beg5 Rge2 Be4 Rg2 Bc6+ Kb4+ Bb5 Nf2+ Kc2 Qh7+ Kc1 Nd1 Ba4 Qaf5 Bf6 Qh3 Be7 Rg5 Qa2 Rg2 Qc7 d8Q b2 Qdh8 Bd8 d7 Qg3 Qf8 Qd3 Qf7 Kb1 Qe7 Bb7 Nc8 Bf3 Qf7 Bg4 Qe7 Bc7 d8Q Ra7 Qd4 Bd8 Qd5 Rac7 Qed7 R7c5 Qda7 Rb5+
5Q2/3b1KQ1/2rrQ1nB/k2q2n1/q6r/N1r2q1N/r2BrPQ1/r2q3Q w - - 0 1 illegal: No possible last move
3RRR2/p1P4r/1qn1KN1R/2Q1b1n1/1n2q2p/N5p1/Q4rk1/q2Rb1b1 w - - 0 1 legal: proof: d4 b5 b4 c5 e4 cxd4 a4 bxa4 b5 f5 b6 fxe4 Ra3 d6 Nc3 Be6 Ra2 Na6 Ra1 Rc8 Nb1 Rc5 h4 g5 b7 Bb3 h5 Nb8 Bf4 Nc6 Bg3 Nb4 b8Q Bd5 Qc8 Ba8 Qxa8 Na6 Bc4 Bh6 Bf7+ Kd7 Bg6 Rc4 Bh4 gxh4 g4 Bf8 g5 Rc3 Bf5+ Ke8 g6 Rc4 g7 Rc5 Bg6+ hxg6 Kd2 Kf7 c4 Ke6 f4 Kf5 h6 e5 h7 e3+ Kd3 g5 Qd2 Kg4 Ke4 Kg3 Kf5 g4 Qe2 e4+ Ke6 d3 f5 a3 f6 d2 f7 d1N Ra2 d5 Rh2 d4 Qf1 e2 Qf6 e1B Rh1 e3 Rd2 e2 Rh2 d3 Qc3 a2 Rb2 a1B Rd2 Nf2 Rd1 Ne7 g8R Nh3 Qd5 Nb4 Nf3 d2 Na3 Nec6 Rh1 Rb5 c5 Qb6 Qa2 Kg2 Ng5 g3 Ne4 Bg7 f8R Be5 Qcc4 Bad4 Nf6 Bg1 Rg6 Ra5 Rh6 Ra6 Re8 Rf8 h8R Ng5+ Kf5 Rf7 Rhf8 Rh7 Rd8 Bgf2 Rf1 Bg1 Rf4 Ra5 Rfd4 Ra6 Rde8 Ra5 Rdd8 Ra4 Rc1 d1Q Qcc2 Qd4 Rd1 Qa1 Qc1 Bd2 Qcc4 e1Q Qd4 Qe2 Qc3 Be1 Qd4 Nb8 c6 Ra5 c7 N8c6 Qdc4 Rd5 Qc5 Rd2 Ra8 Qe3 Rad8 Rf2+ Kg6 Nf3 Kf5 Qe4+ Ke6 Ng5#
B1Q5/2B2Pq1/2K1NN2/2r1r1N1/bq3nnr/kn4q1/1Nb1qQ1n/3r2bN w - - 0 1 legal: proof: e4 a5 f4 g5 d4 c5 h4 cxd4 g4 f5 b4 axb4 a4 fxe4 f5 Bg7 Rh3 Bf8 Rf3 h6 Rf4 gxf4 g5 h5 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 Kf2 b5 c4 d5 h5 Kd7 f6 Kd6 f7 Kc5 a5 e5 g6 g3+ Ke2 e3 Kf3 e2 a6 e1Q h6 e4+ Kg2 f3+ Kh1 e3 g7 b3 a7 Kb4 c5 e2 c6 f2 Kg2 b2 Kf3 d3 h7 d4 Ke4 d2 c7 d3 Nh3 g2 Nf4 g1N Nh5 Nc6 Qc2 d1R Ng3 d2 Nh5 Qf6 Kd5 Nh6 g8N Na5 Nf4 Bd7 c8N Bc5 Ne6 Nb3 Bg2 f1N Nd8 Qg7 Qf5 Rb8 a8Q Nh3 Qc2 Bg1 Nce7 Ng4 Nc3 b1Q Nf5 Nfh2 Na4 Qg3 Nf6 e1R Ne6 Re5+ Kd6 Nf4 Ng5 Qa2 Nb2 Qa4 Qc8 Ka3 Qf3 b4 Qf2 Rbb5 Ba8 Bc6 Kc7 Qa6 Kd6 Be4+ Kc7 Bc2 Kd7 Qe6+ Kc7 Qc4+ Kd6 Qe2 Kc6 Rg8 h8N Rf8 Ng6 Rh8 Qe3 Rh4 Qd4 Na1 Nf8 b3 Nd3+ b2 Nfe6 Nb3 Qe3 Rf1 Qf2 d1B Be3 b1Q Bb6 Qb2 Bc7 Qd4 Nb2 Qb4 Nf8 Re1 Nfe6 Na1 Ne3 Bd3 Qf1 Ba4 Ned1 Nb3 Nf2 Bc2 Nh1 Rd1 Qf2 Rbc5#
bbrR2r1/6B1/R1b1P1bR/6qQ/bRqR3b/2q4p/Qnr4K/3Bk2n w - - 0 1 illegal: No possible last move
1n2Qqk1/RQPr1q1N/7R/6K1/3r2bn/pr2nb2/N1bn1Q2/bQnQ4 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 c4 f1Q e4 d5 b4 a5 h4 f5 c5 Kf7 c6 g3 b5 g2 b6 d3 e5 a3 b7 a4 c7 a2 h5 d4 h6 f3 h7 a3 Rh6 f4 Nh3 g1R Re6 f2 Rc6 f3 Nf4 Ne7 Nc3 Rg4 Re6 Nf5 Ncd5 Bg7 Nh5 Qf8 Nb4 Nh4 Rb1 a1N Rc6 Ra4 Re6 Rg3 Rh6 Bg4 Na2 Rg8 h8Q Bf6 Rb4 Rg7 Qh7 Rh3 Qe4 Kg8 g6 Rd7 e6 Bh8 e7 Bf6 Qde1 Nb3+ Kd1 d2 e8Q Be5 g7 Nc1 Qb1 Qc4 Rbb6 f1N Qf2 Qf7 Ra6 Rg3 Kc2 d1N Ra7 Nd2 Nf4 Rb4 Ne6 Rb3 Ng5 Rg2 Qg3 f2 Nh7 f1B Qf2 Bfe2 Qd8 Bef3 Qe8 Nc6 b8Q Rg1 Qb4 Nb8 Qb7 Bf6 Qee2 Re1 Qef1 Re4 Q1e1 Nb2 Qee2 Nbc4 Kd1 d3 Ke1 Red4 Qd1 Ne4 Kf1 d2 Kg1 Ned6 Kh2 Ne3 Kg3 Ne4+ Kf4 Ra4 Qde2 d1B Qed3 Nd2+ Qd4 Be5+ Kg5 Bc2 Qd3 Ba1 Qdf1 Qe6 Q1g1 Kf7 Qd1 Rad4 g8Q+ Ke8 Qh8 Kf7 Qe5 Kg8 Qee4 Qc4 Qe8 Qf7
n3bbq1/1pr2k2/2n1qn1b/2B1n3/1Q4B1/1q1rRRK1/1R2RPqR/Q5r1 w - - 0 1 illegal: No possible last move, all moves rejected
1b4Rr/1nNPppb1/n1N3Nq/7Q/R2bK3/3n1rN1/3Q2qb/1kr1N2b w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 e4 d5 g4 dxe4 b5 g5 Ba3 gxf4 g5 h5 Bb4 cxb4 Be2 Qd3 Bf3 Qd8 Bg4 hxg4 Ke2 Kd7 d4 Ke6 c4 Kf5 h4 a5 c5 a3 g6 f3+ Ke3 a2 h5 a4 b6 a3 d5 b3 b7 g3 g7 b2 d6 f2 h6 f1Q c6 g2 h7 Nh6 g8Q Bg7 c7 Na6 b8N Qf8 d7 Bb7 Nd2 b1R c8N Rc1 Rb1 a1B Rb3 a2 Ndf3 Bae5 Qd2 a1B Qe2 Bad4+ Kd2 e3+ Kd3 Bd5 Nc6 Bb8 Rb4 Kf4 Nb6 Nf5 Nd8 Nd6 Ne1 Nb7 Nc6 Qf3 Qf2 e2+ Qe3+ Kf5 Ra4 Qf1 Qd2 Qf2 Ngf3 g1B Nh2 Qg2 Nf1 Bgh2 Rg1 Bf3 Nd5 Ra7 Nc2 Ra8 Nc7 e1N+ Kc4 Nd3 Ng3+ Kg4 Qa5 Kf4 Qh5 Bge5 Qgg6 Qh6 Qd6 Ra7 Qb4 Bg7 Qc3 Ra8 Ne1 Ke3 Qc2 Qe2 Qc3 Bh1 Rg2 Qf2 Kd5 Qf1 Qb4 Qe2 Qd6 Kd2 Qf4+ Kc3 Qf2 Qc2 Ke4 Kb2 Qe3 Kb1 Qd2 Rc8 h8N Qa2 Nc2 Rf1 Ng6 Rf3 Ne1 Rh8 Rg1 Qb2 Qe3 Qg2 Qeg5 Bba7 Qa5 Rac8 Qd2 Bb8 Ne8 Rh7 Ne2 Bge5 Nh8 Nd8 Na5 Qf1 Rg8 Rc1 Nc7 Nb7 Ng6 Rh8 Ng3 Qg2 Nc6 Bg7
1n1Nbr1n/r4qr1/p6B/1N2qQ2/2b2rQK/p3Nr1B/3p1P2/N1k1b1N1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 fxe6 h5 e5 Rh2 e4 Rh3 Ba6 Rh1 Bc8 g4 h6 b4 Qa5 Rh4 Qd8 Ra3 Nc6 Rg3 gxh4 g5 Nb8 g6 Qb6 Rg4 Qd8 Rg5 hxg5 c4 e5 c5 Ke7 g7 Kf6 b5 Kf5 c6 d5 b6 h3 c7 d3 b7 g4 h6 a6 h7 e3 Bd2 Ke4 Qb3 e2 Bg5 g3 Qa2 d4 Qc4 g2 Bd2 a3 Be3 h2 Qf7 h1R Bf4 Qd5 Bh2 Be6 c8N Ne7 g8Q Ra7 Nf3 g1R Qh5 Ng6 Qh6 Bb4+ Qd2 Bd7 Qf8 Be8 Bf4 Rh3 Nb6 Qf7 Nd5 Rgg3 Qg7 Rf8 Ng1 Nh8 Ne3 Rg6 Qc3 Rf3 Bh6 Ba5 Qg8 Rg7 Bh3 Rf4 Kd2 e1R Qb4 Re2+ Kd1 d2 Qc5 Kd3 Nc3 e4 Qf5 Bb4 Nb5 Bc3 Nc2 Re3 Na1 Ng6 h8N Ref3 Qg4 e3 Qh7 Qf5 Nf7 Nh8 Nfd6 Qg6 Nf5 Qf7 Nc7 Ba5 Qhg6 Kc3 Ke2 Kb2 Qf6 Kc1 Nb5 d1B+ Kf1 e2+ Kg2 e1Q Ne3 d3 Qf5 Bb3 Kh2 Nd7 b8N Bc4 Nc6 Nb8 Nd8 Qc3 Kg2 Qe5 Kh2 Be1 Kg2 d2 Kh2 Rd4+ Kg2 Rff4 Kg3 Rf3+ Kh4 Rdf4
Rr2n3/rRp1p1b1/2nb3b/N1Qb4/KR3Rpk/1R5b/2NP2q1/3n1bQ1 w - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 axb4 g4 d5 Bh3 dxc4 Bb2 g6 Be5 fxe4 f5 g5 Bf4 gxf4 g5 Be6 Bg4 hxg4 Qc1 Bd7 Qd1 Bc8 a4 Kf7 h4 b5 g6+ Kf6 g7 b3 h5 Kg5 a5 c3 f6 f3 h6 f2+ Ke2 b4 h7 b2 a6 c2 f7 c1B a7 b3 Rh6 e3 Ra4 Qd5 Qc2 Nc6 Kd1 Ba6 Ne2 Nf6 Na3 b1N Rh4 Bb2 Rb4 Qg2 Rh3 Be5 Rf3 b2 g8R+ Kh4 Qc5 Bc4 Kc2 Bd5 Nc1 e2 Nb3 e1B Rc3 Bh6 f8R Bd6 Rg3 Nc3 Na5 Be5 Rf7 b1B+ Kb2 Bd3 Rgb8 B3c4 Rff8 Be2 R8b7 Bd6 Rf7 Rhb8 h8Q Ne8 Qhd4 Bf1 Nc2 Nd1+ Ka3 Qh2 Ne3 Bh3 Nc2 f1B Rgb3 Qg2 Ka4 Beg3 Qg1 Bge5 Rff4 Beg7 R7b6 Rb7 R6b5 Rd8 a8R Ra7 Rb7 Rb8
4R3/2KR1r2/2B2prn/3R1b1Q/p3n1Pb/Q1n1R3/1rp1q1Bk/1Q5r w - - 0 1 legal: proof: f4 d5 e4 e5 h4 exf4 a4 b5 axb5 g5 c4 gxh4 cxd5 Ke7 b3 Kd7 Bb2 Ke8 b6 a5 b7 a4 b4 Ra5 b5 Ra8 b6 Bg4 Nh3 Bxh3 Bd4 Be6 Be3 fxe3 Na3 Bg4 Nc4 Bc8 Nd6+ Kd7 Ne8 Kxe8 Ke2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Kf4 g4 Kg3 d4 c5 e5 h5 e6 e2 d6 e1R d7 c4 d5 h3 d6 h4 e7 h2 e8B h3 Qb1 c3 Be2 c2 Qb2 Rh7 Qh8 Na6 Kc6 Nc7 b8Q Nb5 b7 Rb1 Bf3 Qe7 d8R Bf5 Re1 h1N Re3 h2 Rd7 Nc3 Kc7 Rb2 Rd1 Ra6 Rd5 Nh6 Qc8 Qe5 b8Q Be7 Qb4 Kh3 Qcb8 Bh4 Qa3 Ng3 Qb5 h1R Bg2+ Kh2 Qb6 Ra2 Qb1 Rg7 Qh7 Nge4 Qg6 f6 Qh5 Rg8 Rh7 Rg6 Bc6 Qe7+ d7 Rb2 Rf7 Qe8 d8R Qe6 Re8 Ra7+ Bb7 Qa6 Rh7 Qe2 Rhd7 Ra8 Bc6 Rd8 Ree7 Rf8 Re8 Rf7
B1qq3Q/6Q1/6r1/3B3r/Bnb2k1n/KN1PN1qb/b2N1nnr/2Nn4 w - - 0 1 legal: proof: e4 a5 h4 d5 f4 f5 g4 g5 a4 Bg7 b4 axb4 c3 Bd4 cxd4 Kd7 Ra3 Ke8 Rc3 Kf8 Rh2 Ke8 Rc4 dxc4 d5 fxe4 f5 h6 Rf2 Qd6 Rf4 Qd8 Bb2 Qd6 Bf6 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 g7 Kd7 a5 Kd6 a6 Ke5 h5 b5 h6 c5 a7 e3 f6 e2 h7 c3 d6 f3 d7 c4 f7 g4 f8Q b3 Qc1 c2 Qf7 b2 Bg2 c3 Qf8 b4 Qe8 b3 Bh1 g3 Qg6 g2 Qa6 Nh6 g8B Kf4 Qa5 e5 Qa2 e4 Bf7 Na6 Na3 b1N Nc4 b2 Bg6 Nf5 Bf7 Nb4 Qa6 Nh4 Ne3 Rb8 a8B Rb5 Qc6 Rh5 Be8 Ba6 Qd1 c1N Qg6 c2 Qg7 Nc3 Bd5 b1B d3 f2+ Kd2 f1B Qe1 Nd1 Nf3 Nf2 Kc3 g1R Kb2 Bh3 Nd2 Nca2 Ka3 Nc3 Bf3 Rgg5 Qh1 e1N Ba8 Rg6 Bg2 Qb8 d8N Ncd1 Nc6 Qd8 Na5 Bc4 Ba4 Bba2 Bf3 Neg2 Nab3 Re8 h8N c1Q+ Qb2 Qc2 Qg7 Rf8 Ng4 e3 Bfd5 e2 Ne3 e1Q Qh2+ Rg3 Qh1 Rf6 Qh2 Rfh6 Ng6+ Kg5 Nf4+ Rg6 Ne2 Rf3 Ng3 Kf4 Nc1 Qg1 Ngf5+ Rfg3 Qh1 Rgh6 Nd4 Rgg6 N4b3 Qh2 Qf1 Qg3 Qe2 Bb5 Qe1 Qcc8 Qf1 Bc4 Qe2 Re5 Qh5 Rh8 Qhh7 Rh5 Qhg8 R8h7 Q8h8 Rhg5 Bf3 Bg4 Nb1 Nf5 Nc3 Rh2 Ne4 Rgh5 Ned2 Nfh4 Bfd5 Bh3
R3Qn1Q/1Qb1nrb1/6q1/1bP1r2n/K7/1pq5/RqB2nrk/B1B1Q3 w - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 e4 axb4 h4 f5 exf5 g5 Qd2 gxh4 Nc3 b3 Nb5 b2 Nc7+ Qxc7 Qd1 Qd8 Nf3 Bh6 Ne5 Bg7 Ng6 Bh6 Nf8 Bxf8 Kd2 Kf7 f4 Kf6 g4 b1Q c4 h5 c5 d5 a5 b5 a6 e5 a7 b4 Ra4 h3 Ba3 e4 Qe2 d3 Qf2 b3 Kc3 e3 Kb4 h2 Bh3 d4 Re1 h1Q Qd2 e2 Rg1 e1B Kb5 h4 Bb2 Qh2 Qc2 d2 Ra1 d1R Qe2 Bg3 Bc3 Rh7 Bb4 d3 Qf2 d2 Rh1 Rg1 Bc3+ Qd4 Qe1 d1N Ra2 Ne7 Ba1 Qc3 Ka4 Qhb2 Rh2 Nf2 g5+ Kg7 g6 Kh6 g7 Kh5 g8Q Rg2 f6 Ba6 f7 Nd7 f5 Bc7 f6 Qg6 Qh8 Re8 a8Q Bg7 Qb7 Nf8 Bd7 h3 Bf5 Kh4 Bc2 Kg3 Rh1 h2 Rf1 Nd7 f8B h1N f7 Kh2 Rg1 Ng3 Rf1 Bd4 Bh6 Nh5 f8Q Rf7 Bc1 Bg7 Qfg8 Nf8 Rg1 Rg5 Rg3 Be2 Rd3 Rg2 Rd8 Nc6 Ra8 Re5 Qh6 Ne7 Qhh8 Nd7 Qgb8 Nf8 Qe8 Bb5+
qr5n/1Q4r1/1nQPNK1p/p7/5nBn/3q3n/N1N1q1b1/BN2b1kB w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 b4 e5 c4 d5 h4 dxc4 f4 gxh4 b6 exf4 b7 Nf6 b5 Bf5 b6 Na6 b8N Ng8 Ra3 Bxa3 b7 Bc8 Rh3 Bf8 Rd3 Qe7 Rd8+ Qxd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 c3 g5 f3 g6 f4 d3 h3 g7 h2 Qc2 h1Q Qb2 c2 Ne2 f2 Qb3 h6 Bg2 f1N Bf3 Ng3 Bd2 c1N Qa2 Bh3 Be1 Bg2 Bg4 f3 Bh3 f2 Qb3 f1Q Qa3+ Nb4 Bc3 Ra7 Bb2 Ne7 g8N Ngf5 Nf6 Ng6+ Ke6 Nfh4 Nec3 Kd4 e5 Ke3 d4 Kf2 d5 c5 Bg4 c4 Na6 Qe2 b8Q Ncd3 Qa4 Kg1 Nh5 Rg7 Ba1 Nf2 Nf4 Nh3 Na2 c3 Qb7 c2 Qac6 Qd7+ Kf6 c1N e6 Ncd3 e7 Rhg8 e8B Nh8 Ne6 Ndf4 Qcc8 Qdb5 Beh5 Qbd3 Qcc6 Bd6 Bg6 Rb8 Be4 Bc5 d6 Bf2 Bef3 Be1 Be4 Nc2 Bd5 Ne3 N6b4 Nc4 Nc2 Nb6 Be4 Qh2 Bd5 Qhg3 Bdf3 Qa6 Bd5 Qa8 Be4 Qgd3 Bd5 Bf1 Bh1 Bg2
Q5r1/2kq1qp1/b3RQ1Q/2p4B/3n1n1Q/1RB1n1P1/3nrq2/1BK2n1b w - - 0 1 legal: proof: b4 a5 c4 h5 a4 b5 f4 bxa4 g3 d5 f5 dxc4 Nh3 h4 Nf4 h3 Ng2 hxg2 Nc3 e6 Ne4 exf5 Nc5 f4 Nb3 axb3 Ba3 Bd6 Bc1 Be5 Ra3 Ba1 Rxa1 a4 h4 Kd7 e4 g1Q d4 f5 Kd2 c5 d5 f3 e5 c3+ Kd3 c2 Kd2 f4 b5 f2 d6 a3 b6 f3 b7 a2 h5 b2 h6 b1B h7 Nc6 b8Q Nge7 Ba6 f1Q Rh6 f2 Qh5 Ng6 Bb2 c1N Bc3 Rg8 h8Q Be4 Qh4 Nd4 Rb1 a1N Bd3 Nac2 Rb3 Ne3 Bb1 Nf4 Re6 Bh1 Q8h6 Ba6 Q4f6 Ra7 Qa8 Qe8 Qfh4 Qb5 Q4f6 Qf7 Qfh4 Qb7 Q4f6 Kc6 d7+ Kc7 Qfh4 Ncd3 Q4f6 Ne1 Kc1 f1N Qfh4 Qf2 Q4f6 Qc6 Qfh4 Rb7 Q4f6 Qd6 d8Q+ Kc6 Qfh4 Nef3 Qdf6 N3d2 Re7 Nec2 e6 Qd7 Re8 Kc7 e7 Qe3 Rd8 Qf2 e8B Rb6 Rb8 Rc6 R8b6 Re6 Rd6 Re2 Re6 Qfe7 Bg6 Nce3 Bh5 Qf7
1Q4n1/1NQKQ1rq/1r1P4/b6N/Qbnb1p2/1bpn2B1/nBk3qB/8 w - - 0 1 legal: proof: b4 h5 h4 a5 c4 g5 f4 gxf4 g4 e5 a4 d5 g5 dxc4 Bh3 b6 Bg4 hxg4 b5 e4 Rh3 Nf6 Rf3 exf3 Ra3 Ng8 Rb3 Qe7 Rb4 axb4 a5 Qf6 axb6 Qd8 Kf2 Ke7 d4 Kd6 e4 c5 b7 f5 e5+ Kd5 b6 Ke4 g6 b3 g7 b2 d5 c3 e6 c4 e7 c2 e8Q+ Be6 h5 g3+ Kf1 g2+ Kf2 Ra6 h6 Qc7 h7 Nd7 b8B Nc5 b7 Rb6 Qe1+ Kd3 Nc3 b1N Ne4 Nc3 Nh3 Na2 Ba3 c1B Qa4 Bd2 Nd6 Ba5 Bb2 c3 Qe5 Bf7 Qe7 Qd7 Bc7 Kd2 b8B g1B+ Kf1 f2 Kg2 f1N Kf3 Be6 Nb7 Ne3 Be5 Nc4 Bed6 Nh6 g8Q Nd3 Qg3 Rg8 h8Q Rg7 Qg8 Bd4 Qgf7 Qe8 Qc7 Ng8 Qfe7 Qd7 Ng1 Rg5 Qc5 Nce5+ Kg2 f3+ Kh3 Qc6 Qd8 f2 Ne2 Bc8 Nf4 Qe8 Nh5 Qg6 Bdc7 Bd6 Qe7 Qh7 Kh4 Rg7 Qcc6 Ng6+ Kg5 Bdb4 Qgd6 f1Q Qdd8 Qf3 Bh2 Qf1 Bbg3 f4 d6 Qg2 Qcc7 Be6 Qdb8 Bb3 Kf5 Kc2 Qc4 Ba3 Ke6 B3b4 Kd7 Nge5+ Ke6 Nf3 Kd7 Nd2 Qcc7 Nc4
8/1R2Q2q/1pP1B1k1/n1qr3r/1R1rn3/p2pQ1rQ/QbB5/1r2KRn1 w - - 0 1 legal: proof: d4 e5 f4 exf4 b4 c5 a4 cxd4 a5 b6 b5 Ke7 a6 Bb7 Bd2 Ke8 Ba5 bxa5 b6 Bc8 g4 h5 b7 d6 Nc3 Bf5 Nh3 f6 Nd5 f3 Nb6 axb6 Nf2 Bd7 Bg2 f5 Bh3 f4 Bf1 Bf5 gxf5 Nf6 Ng4 hxg4 Qc1 Ng8 Qb1 Kd7 Qd1 Ke8 h4 Kf7 c4 g5 e4 d5 f6 d3 e5 d4 e6+ Kg6 e7 g3 e8R g4 c5 f2+ Kd2 g2 a7 g1R f7 f3 Re6+ Nf6 Qc2 a4 Qb3 g3 Ree1 g2 Qb1 a3 Qa2 Rh5 Re4 Nc6 b8Q Qe7 Qf4 Bh6 f8Q Qh7 Qe3 Na5 Qe7 Rd8 a8B Rdd5 c6 Bf4 Bb7 Bg5 Be2 f1Q Bc8 f2 Be6 Qb1 B2g4 f1R Bd1 Qb5 Bc2 Qc5 Rh2 Rf3 Rf1 Rg3 Ke1 Rh1 Rg4 g1N Rhf2 Ne4 Rf8 Nh3 Rb8 Rhg1 Rb7 d2+ Ke2 d1R Rgf4 Rd3 Ke1 Rc3 Rg4 d3 Rf4 Nd6 Rb4 Rc4 Qe2 Bc1 Qf2 Rhg5 Qe3 Ne4 h5+ Kh6 Bd7 Rcd4 Bg4 Rh1 Be6 Ng1 Qf4 Be3 Rf3 Qg7 Kd1 Kh7 h6 Kg6 h7 Ne2+ Rf1 Rgf5 h8Q Rfe5 Qhh4 Rh5 Re1 Qh7 Qh3 Bd2 Qe3 Rf1 Ba4 Ng1 Bb3 Rf2 Rf1 Bc1 Ke1 Rb2 Ba4 Rb1 Bc2 Bb2+
1qr4r/b1n2N2/2R1N3/q2K3k/bQr2Qn1/N1QR1Q2/bbn1Pb2/rq6 w - - 0 1 legal: proof: g4 f5 b4 fxg4 d4 g3 Kd2 c5 d5 a5 d6 h5 Ba3 c4 Nh3 axb4 Bc1 c3+ Kd3 exd6 Bh6 d5 Bd2 cxd2 Ng1 d4 Bh3 g2 Bg4 hxg4 Ke4 Kf7 f4 Kg6 h4 b5 a4 d5+ Ke5 b3 c4 d3 a5 g3 c5 b4 a6 b2 c6 b3 a7 d4 f5+ Kh5 c7 g5 f6 g4 f7 Bg7+ Ke4 Nc6 f8N Nf6+ Kf4 Be6 c8Q Qa5 Qd7 Nb4 Qc2 d1R Ra2 d2 Qcc7 d3 Qc4 Rc8 a8Q Nc2 Qf3 Rc1 Rh2 d1N Nh3 g1R Qdc6 d2 Qd4 g2 Qcc4 Nc3 Ra1 d1B Qa4 Nb5 Na3 b1Q Ke5 b2 Qdf4 Ba2 Ng5 Re1 Rh3 g1B Qab4 Bf2 Nfe6 Rg1 Qb7 g3 Nf7 g2 Rd3 Ng4+ Ke4 Rc4+ Kd5 Re1 Qa8 g1B Qaf8 Ba7 Qf3 Bgf2 Qfd6 Ncd4 Qc7 Ba4 Qcf4 Qc2 Rb1 Qb3 Ra1 R1c3 Rc1 Bf6 Rc2 Ra1 Rc1 b1Q Rc2 Kg6 Rc1 Nc2 h5+ Kh7 h6 Kg6 h7 Rcc8+ Ke4 R3c4+ Kd5 Be5 Q3e3 Bb2 Qef3 Rhf8 h8Q Rfe8 Qg8+ Kh5 Qg7 Rh8 Qgc3 Nbd4+ Qc5 Qb8 Qb4 Nb5 Qc3 Qac7 Q5b4 Qa5 Nd6 R4c7+ Qcb3 Ne1 Nf7 Rc6 Rc5 Nc2 Q3c4 Ra6 Rc7 Rc6 Qcb3 Rc3 Rc6 Rc4 Q3c3 Nc7+
1nbB2nQ/2qq4/R1r4b/r2k4/1P2q1r1/1b1r1Qr1/BB1B2bn/Q1K4R w - - 0 1 legal: proof: d4 b5 g4 g5 f4 f5 e4 fxe4 a4 bxa4 f5 c5 Nh3 cxd4 Nd2 h6 Nf4 gxf4 Nf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 Kd2 Kf7 c4 a5 b4 d5 h4 e5 h5 f3 f6 Ke6 g6 e3+ Kc2 a3 g7 g3 h6 e2 c5 e1N+ Kb1 d3 h7 d4 c6 g2 f7 g1R c7 f2 Ra2 a4 Qh5 e4 Qb5 e3 Qe8+ Kd5 Bg2+ Nf3 Rh2 f1B Rh6 d2 Re6 d1B Bb2 e2 Ba1 e1Q Rb2 d3 Bh1 a2+ Kc1 a3 Rh6 Bg2 Ra6 Qe4 Qa4 Qd7 Rb1 Nh2 Bf6 a1Q Bd8 a2 Qa3 Qad4 Qb2 Qde5 Qa1 Nh6 g8Q Bb3+ Kd2 Rc1 Qg3 Ng8 Qf3 Rc6 Rf1 Bg7 f8B Qed6 Bfe7 Bh6+ Bg5 Qg3 Qc3 Qgd6 Kc1 Qc5 Bd2 a1R+ Kb2 Ra5 Kc1 Ne7 Re1 Rg8 h8B Rg3 Bd4 Ng8 Rd1 Bb7 c8Q Qce7 Bf6 Qc7 Qh3 Bc8 Qh4 Qed7 Rf1 Bc2 Qa1 Ra7 Bb2 Bb3+ Kb1 Rb7 Qhf6 Rbb6 Qh8 Rcg6 Rg1 R6g4 Rd1 Bh3 Bg2 Rc6 Bf1 Bg2 Be2 Re6 Rh1 Rc6 Bd1 Re6 Bc2 Rc6 Kc1 Ba2 Bf4 Bc4 Bb1 Ba2+ Bc3 Bb3 Ba2 d2+ Kb2 d1R Bd4 Rd3 Bd2 Bc4 Kc1 Bb3+ Bc3 Kc4 Bb2 Kd5+
2r3Bq/rrk2q2/P1r4r/4r1b1/1R3qR1/2B1QQRq/Q1n2r2/KQ1b1n2 w - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 Nh3 e4 Nf2 a6 Ng4 axb5 Nd2 hxg4 Nf3 exf3 Ba3 b4 Bb2 Qa5 Bc1 Qd8 Kd2 f5 e4 d5 a4 Kd7 c4 b5 Kc2 f2 Kb2 f3 h4 g3 a5 g2 a6 g1R h5 f4 g6 b3 c5 d3 g7 b4 c6+ Kc7 e5 d2 h6 d4 e6 d3 h7 Nf6 g8R Rg6 e7 Ng4 e8Q Ne3 Rh4 Bg4 Qf7+ Be7 Rh1 Rh6 Ra5 Ra7 Bh3 f1R Kb1 f2 Rg1 f3 Qe6 b2 Qg6 Bg5 Qa4 d1Q Qf6 d2 Qa2 Qb3 Qa4 d1R Qa1 Rd6 Qc3 Qf7 Qb3 Rdf6 Ka2 b1R Bb2 Rbe1 Qe6 b3+ Ka3 Qd4 Bc3 b2 Ka2 b1R Ra4 Rbb7 Rg3 Bh5 Rg6 Rc8 h8Q Qd8 Qh7 Qh8 Qb3 Re6 Rh4 Rc1 Rd4 Re5 Rb4 Rc2+ Qb2 Rfc1 Qg8 f1Q Be6 f2 Qf8 Qf4 Bg8 Qh3 Qf5 Re2 Qb1 f1Q Ka1 Rf2 Q2a2 Bd1 Qd5 Q1c4 Qf3 Qcf7 Rg7 Nf1 Rg6 Kd8 c7+ Kd7 Qe3 Nc6 Rg7 Nd4 Rg4 Rd8 c8Q+ Kd6 Qcc4 Rc8 Qce2 Kc7 Q2f3 Rcc2 Be1 Rc4 Bc3 Rcc6 Rg3 Be7 R7g4 Bd8 Qab3 Bg5 Q3a2 Nc2+
nn1B4/k2NN3/1b2b3/2r2Bn1/1nbK2bQ/1Nq1N3/1Qr2r1P/2r2rbB w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 gxf4 a4 h5 d5 e5 d6 cxd6 g5 d5 Ra3 d4 Nh3 e4 Rf3 exf3 Rg1 Bc5 Rg2 Bf8 Rg4 hxg4 Kd2 f5 Kd3 b5 c4 d5 e4 Kd7 g6 Kc7 e5 Kb7 a5 f2 c5 b3 g7 g3 c6+ Ka7 c7 f3 e6 f4 e7 b4 e8N b2 a6 b3 Nd6 g2 Nd2 b1N Nb7 g1B Ng5 b2 Qe2 Nc3 Nc4 b1N Qc2 Na3 Be3 Ne7 g8N Nab5 Nc5 Nec6 Na5 Qe8 Be2 f1R Qa4 f2 Qc4 f3 Qb4 Ne4 Nab3 Rh5 Nf7 Ng5 Nf6 Be6 c8Q Nc7 Qc3 Nb4+ Kd2 d3 Nce4+ d4 Ne5 Bc5 Qd8 Bb6 Nfg4 Rc1 Ngf6 f1R Ng8 f2 Qb2 Rc5 Nc3 Rh8 Nf6 Rf8 Nfd5 Rc1 Qe7 f1B Nd7 Rf2 Qh7 Qe7 Qh4 Qe8 Ne7 Rc2+ Kd1 d2 Bg4 Bd3 Bf5 Bdc4 Bd3 Rf1+ Ke2 d1R+ Bd2 Rdc1 Nd1 N8c6 Ne3 Rc8 Qa1 Na8 Qa2 Nb8 Qb2 Rc3 Be1 Rcf5 Bg3 Rcc5 Bc7 Rf8 Kd2 R8f4 Be4 d3 Bf5 R4f3 Bd8 Rf4 Nd1 R4f2+ Ke3 d2+ Kd4 R3c2 Ne3 d1B Qh3 Nc7 Qg3 Bg4 Qh4 Ka8 a7 Kb7 a8B+ Ka7 Bh1 Na8 Ng6 Bf7 Ng2 Qe1 Ne3 Bfe6 Ne7 Qc3+
Qnb2r2/1B3r2/3nb2Q/2n1r3/1Bkb1PQ1/3R1Kq1/b1B2nrr/1R3qB1 w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Bc4 g4 Ba6 fxe6 Bd3 e5 Bf1 e4 f4 h5 Nf3 Nh6 Nc3 Ng8 Nd5 Nh6 Ne3 gxf3 g4 Ng8 g5 Kf7 Ng4 hxg4 Bb5 Ke8 Be2 Ra3 Bf1 Ra8 Kf2 Kf7 h4 Ke6 c4 b5 a4 d5 g6 e3+ Kg3 b3 c5 b4 h5 b2 c6 b1B h6 b3 g7 d3 h7 d2 c7 d4 a5 Kd5 a6 e5 a7 d3 Rg1 e4 Rh1 e2 Kf2 e1R Rh3 b2 Rh5+ Kc4 Qe2 d1B Ra3 g3+ Ke3 f2 Rb5 g2 Rd5 g1R Bh3 f1Q Bd7 Ne7 g8Q Ba2 Be6 b1R Qg6 Rb7 Bd2 Bg7 Qe8 Bdb3 Bg4 Rg2 Bb4 Nf5+ Kd2 Nd6 Ke3 Qh4 Qf8 Be5 Qh6 Bd4+ Kd2 Rf8 h8B Rf7 Bd7 Rb5 Rf5 Re5 Ba4 Rh2 Qg2 Re3 Bf6 Rg3 Qe2 Rgg7 Rg5 Rg8 Rg1 Rgg2 Bh8 Bd1 Bc2 e3+ Kc1 Be6 Qg4 e2 c8B e1N Bb7 Bf3 Bg7 Be4 Kd1 d2 Bf6 B4f5 Rd3 Bc8 Bd8 Bfe6 Bb6 Qff2 Rb3 Nd3 Re1 Nc5 Rd3 Na4 B6c5 Qf1 Bb6 Bb2 Bf2 Bd4 Bg1 Nc5 Qf6 Nbd7 Be4 Bb7 Qh6 Raf8 a8Q Bc8 Bb7 Nb8 Bf2 Qg1 Rf1 Rg5 Ke2 d1N Re1 Qf1+ Kf3 Re5 Be4 Nc3 Bb7 N3e4 Rc1 Qe1 Bg1 Nf2 Rcd1 Qf1 Rb1 Qg3+
1nQ1b3/5rQB/r1n2b2/1b2q2n/bB2pr1N/q2NB1bB/k2P3q/4K1N1 w - - 0 1 legal: proof: e4 a5 f4 g5 c4 d5 a4 dxc4 g4 f5 b4 axb4 h4 fxe4 f5 Nd7 Rh3 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Ra3 Qd4 Rg3 Qd8 Rg4 hxg4 h5 Kd7 h6 Kc6 h7 Kd5 g6 c5 g7 e5 f6 b5 a5 b3 f7 g3 a6 f3 a7 b2 Na3 b1B Bh3 c3 Bf5 f2+ Kf1 c4 Ke2 f1N Bd7 c2 Bg4 c3 Ke1 g2 Qf3 b4 Qf4 b3 Nf3 g1Q Qf5 b2 Bh5 e3 Qf4 e2 Nh2 e4 Qf6 Ng3+ Qf1 Qa5 Bf3 Nh5 Bg2 Be7 f8N Bf6 Bh3 Ne7 Ne6 Rf8 g8B Rf7 h8B Bd7 Ng5 Be8 Bc8 Nec6 Nhf3 Qh2 Nb5 Kc4 Na3+ Kb3 Nc4 Qae5 Qg2 Ka2 Kf2 e1B+ Kf1 Qd4 Bh3 Bg3 Bh7 Qe5 Qg1 Ka1 Bg7 Ba2 Bf8 b1B Nb2 Bc4+ Nd3 Ka2 Bb2 Bb5 Nh4 Ba4 Ngf3 c1Q+ Nde1 c2 Bd4 Qa3 Be3 c1R Bb4 Rc5 Nd3 Ra5 Qg2 Ra6 Ng1 Bbc2 Ke2 Bb5 Kf1 Bca4 Ke2 Nd7 Kf1 Rc8 a8Q Ndb8 Qb7 Rcc7 Qc8 Rf8 Ke2 Rcf7 Kf1 Bg5+ Ke2 Rf2+ Ke1 R8f7 Qg4 Bf6 Qc8 Bf4 Qgg4 Bg3 Qg7 Rf4+
1qrN1Q2/2r1RbK1/2pnR1n1/3NR1bP/b1qN1qk1/3Rr3/rq3q2/7Q w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 c4 a5 c5 axb4 c6 g5 Bh3 dxc6 Qc2 c5 Kd1 c4 Bb2 Ke7 Kc1 Ke8 Qd1 f3 Be5 f2 Bf4 gxf4 g5 Ke7 Bf5 Ke8 Bg4 hxg4 Kb2 Ke7 a4 Ke6 e4 f1R d4 f5 h4 b5 h5 b3 Kc3 g3 e5 b2 a5 g2 a6 b4+ Kc2 b3+ Kc3 f3 g6 f4 g7 Kf5 a7 f2 d5 f3 Kd4 c3 d6 c2 e6 c1R e7 Kg4 Ke5 Nd7+ Ke6 Nb6+ Kf7 Nc4 e8Q Be7 d7 Re1 Ra3 f1Q Ra4 Re3 Ra1 Nd6+ Kg6 Bg5 Ra6 Qc4 Nc3 b1Q+ Qd3 b2 Nd5 f2 Qf7 f1Q Rh3 Qff4 Nf3 g1Q Qe4 Qf2 Qf8 Qbc2 Nd4 b1B Rb6 Ba2 Rb7 Q2c3 Qh1 Qcb2 Rb6 Ba6 Rc6 Qdb8 d8N Bb5 Ra6 Nh6 g8R Ba4 Rg7 Nhf5 Re7 Nh4+ Kg7 Ng6 Ra5 Rc2 Re6 c6 Rb5 Rd2 Rb7 Rdd3 Rbe7 Rb3 Rf3 Rb7 Rh3 Rc7 Rf3 Re2 Rd3 Re3 Re5 Q8b4 Re6 Rac8 a8R Qb8 Qe8 Rf8 Ra5 Rf5 Qf8 Rfe5 Rd1 Ra3 Rd3 Re3 Nc3 B2b3 Rae5 Ra2 Nd5 Qa1 Nb6 Qb4 Rf6 Bf7 Rfe6 Qc4 Nd5 Qab2
3bn2k/3b2p1/2rN3n/N2q1qPN/r1B1Q2q/2qQq2N/1b2b3/BK3Br1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 f4 a5 h4 e5 g5 exf4 a4 axb4 Ra3 bxa3 Rh3 Na6 Rg3 Nb8 Rg4 hxg4 Kd2 d5 e4 f5 c4 Kf7 Kc2 b5 e5 g3 a5 g2 c5 a2 c6 a1B c7 d3+ Kd2 f3 a6 f4 a7 f2 h5 b4 h6 b3 h7 d4 Bb2 f3 Kc1 Qf6 Nd2 Na6 Nb1 Bd7 c8B Nh6 Qe2 d2+ Kd1 Be7 Qd3 Nc7 Qe2 Bd8 Bc1 b2 Kc2 d1R Nc3 d3+ Kb1 d2 Na2 Ne8 Nh3 g1Q e6+ Kf8 Qe3 Qc3 Bc4 f1Q Qd3 f2 B8a6 Qe1 Nb4 f1B Nc6 Be2 Na5 Qh4 Bab5 Rc8 a8Q Qe3 Qae4 Rc6 Ba6 Rg8 h8N Rg1 Nf7 d1Q Nd6 Rh8 Bab5 Kg8 Ba6 Rh7 e7+ Kh8 Bab5 Nf6 e8N Qdb3 Nc7 Ne8 Ba6 Qb5 Ne6 Qbc5 Nef4 Qd5 Ka2 Qcd4 Nh5 b1Q+ Ka3 Qbb5 Ka2 Bb2 Bd2 Qf5 Bc3 Qbd5 Bb5 Ba3 Ba1 Qc3 Ba6 Bc1 Kb1 Bb2+ Qd1 Bf3 Bf1 Be2 Qdd3 Nf7 Qec4 Qhe4 Nf6 Rh4 Nh5 Nh6 Qb4 Q4f4 Qd4 Qff2 Qe5 Rhc4 Qee4 Ra4 Bc4 Qh4
n2qRBK1/rp4Q1/1kn2B1q/4Q3/P4b2/nrB2R2/2B1qn1n/1bq2Q1b w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 c5 Nc3 cxd4 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Bg7 Nf2 Bf8 Ng4 hxg4 Ke2 d5 h4 Kd7 a4 Kc6 c4 e5 h5 g3 f6 b3 g6 g2 c5 g1Q f7 e3 Kd3 e4+ Ke2 b2 h6 b1N h7 f3+ Ke1 f2+ Ke2 Qh2 g7 Nd7 Qc2 d3+ Kd1 d4 Ra2 d2 Ke2 d1N Qd2 Na3 Qe1 Nb6 Qd2 Ra7 Qa5 Qh6 Bb2 Bf5 Rh3 Na8 Rf3 Bd6 f8B Bf4 Bc3 Ne7 g8Q Bg6 Bg2 f1N Qg7 Nf2 Rd2 Rg8 h8B Nh2 Qa6+ Kc7 c6 Bf5 Qd3 Kb6 c7 Nc6 c8Q Bh7 Qe5 Rg3 Qg4 Bg6 Qc4 Rh3 Bf6 d3+ Ke1 Bf5 Qg7 Bg6 Rc2 d2+ Ke2 Rg3 Bh3 Bh7 Bf5 d1B+ Ke1 Bg6 Qf1 e2 Rd2 Bb3 Rdd3 Ba2 Rde3 Bd5 Kd2 Bh7 Kc1 e1Q+ Kb2 Qd1 Re1 e3 Bc2 Bde4 Kb3 Qc1 Re2 Nb1 Re1 e2 Kc4 Bhg6 Re3 Bh1 Rf3 Qc8 Kd5 Qd8+ Ke6 Na3 Qh5 Bh7 Kf7 Be4 Kg8 Bg6 Rd1 e1Q Qe5 Qe2 Rd7 Bd3 Re7 Bg6 Re8 Be4 Bd1 Bb1 Bc2 Rg5 Qe7 Rb5 Qe5 Rb3
3q2r1/P4Nkn/NnbN3R/br2Rqq1/1nrq1Q2/6p1/1n1K2R1/Q1Rn4 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 c4 f1Q e4 d5 a4 b5 h4 f5 g6 f3 h5 g3 g7 Kf7 a5 f2 e5 f4 c5 f3 a6 d3 a7 b3 c6 b4 h6 d4 c7 b2 h7 b3 Qc2 Nd7 Ne2 Bb4+ Nec3 Nb6 Qc1 Bb7 c8R Bc6 Qc2 Ba5 Na3 b1R Nc4 b2 Ra3 Nf6 g8N Qg1 e6+ Kg7 e7 f1Q e8Q f2 Ne7 Rg8 h8R Nh7 Rc7 Rc8 Qd1 Qh3 Ne5 f1Q Rd7 Qh5 Ra2 Qff5 Rd5 Qhg6 Qg4 Qgg5+ Qf4 Rc7 Qh5 Rc8 Qd1 Rc7 Qc1 Qe3+ Kd1 d2 Nf7 Qg1+ Ke2 d1N Re5 d3+ Kd2 Qgd4 Nd5 Rc8 Nb4 Rc7 Ke1 d2+ Ke2 Ne3 Nb5 d1N Qc3 Nc2 Na6 Nb4 Qcc1 Bb7 Rh6 Rc4 Nbd6 Bc6 Qc3 Ra1 Ke1 b1N Rg2 Nd2 Rh1 Rb1 Qa1 Nb2+ Ke2 Ne4 Rc1 Nf2 Ke1 Nfd1 Ke2 Nf8 Rh6 Nh7 Qa2 Ra1 Qb1 Ra3 Qa1 Rac3 Ke1 Rc5 Ke2 Rb5 Ke1 Rc4 Ke2 Qc5 Kd2 Qd4+
3qQ3/Rq1n1bQ1/2bkb1Qr/nqNp1R2/5b2/3RPK2/1n3Q1r/3rn1N1 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 h4 Ke7 a4 f1B c4 d5 e3 f5 a5 b5 h5 d3 g6 g3 g7 f3 a6 f2 a7 f4 c5 f3 h6 b3 c6 g2 c7 b4 h7 b2 Ra6 b3 Rh3 Nf6 g8Q Bh6 Nc3 b1B Qg4 b2 Rh5 Bf4 Qc1 Nc6 Kd1 d2 Rh6 Bg6 Qg5 b1Q Rb6 Bb5 Rb8 Bf7 Nge2 g1N Ne4 Na5 Rh5 f1N Rb6 f2 Nc5 Nf3 Ng1 Qb3+ Qc2 Ne1 Qg3 Bf5 Qg2 Nd7 Qf3 Ba4 Ke2 d1R Qb1 Rb8 a8R Nd2 Ra7 Ndc4 Rb4 Nb2 Rd4 Rb6 c8Q Qc7 Qg8 Qd8 Qg7 Re6 Qfg3 Qb7 Qe4 Kd6 Qeg2 Rhe8 h8Q Bc6 Q2f3 Rg6 Qhg8 B5e6 Rf5 Rf6 Q3g5 Rg6 Q5h6 Rg2 Qhg6 Rh2 Qfg3 Ned3 Kf3 f1Q+ Qf2 Ne1+ Kg4 Qc4 Rd3 Qcb5 Q8f8+ Kc7 Qe7 Reh8 Qef8 R8h6 Qe8 Ng2 Kf3 Kd6 Qh4 Qf6 Qhg3 Qd8 Qf2 Ne1+
1N1B3q/PQN1pq2/qB4n1/4pQ1n/n2rr2Q/8/nb2BnQK/1k1r1b2 w - - 0 1 legal: proof: e4 a5 f4 g5 d4 f6 b4 axb4 h4 h6 e5 fxe5 g4 c5 a4 cxd4 f5 Qa5 Rh3 Qb6 Rf3 Qd8 Rf4 gxf4 g5 h5 Ra3 Qc7 Rg3 Qd8 Rg4 hxg4 Kf2 Kf7 Kg2 b5 c4 d5 h5 f3+ Kh1 b3 g6+ Kf6 g7 g3 h6 g2+ Kh2 d3 c5 b2 h7 d2 a5 f2 a6 b4 c6 b3 c7 d4 a7 d3 Qe1 d1N Qd2 Nd7 Qe1 d2 Na3 b1N Qe3 b2 Nf3 g1Q+ Kh3 Qg6 Ne1 Nbc3 Qh6 b1N Qf4 Ba6 c8Q Na4 Nb5 Nbc3 Nd6 Qf7 Be2 f1Q+ Kh2 Nf2 Nd3 d1R Nb5 Na2 Be3 Qde8 Qb7 Rd8 Nc5 Rd4 Bf3 Qa1 Nc7 Bf1 Qfe4 Rd1 Bd4 Kg5 Qd3 Kf4 N5a6 Ngf6 g8Q Nh5 f6 Bh6 Qg2 Nf8 Be2 Ng6 Bb6 Rd4 Qf5+ Ke3 Nb8 Kd2 Ba5+ Kc1 Bb6 Rf8 h8Q Bg5 Qh6 Bd2 Qhg5 Qd8 Qh4 Bc3 Ba5 Bb2 Bb6 Qb3 f7 Re4 Ba5 Kb1 Bb6 Rh8 f8B Qf7 Bh6 Rh7 Bc1 Qh8 Bce3 Rg7 Bd2 Rg8 Bda5 Rgd8 Ne6 R8d4 Bd8 Nc1 Bab6 Qa3 Nc7 Na2 Qbc8 Qd3 Qb7 Qa6
1Nb1r2r/QnKR2N1/r4n1q/rn2N3/kp1R1Q2/1b4RP/1b1N1q1p/1q6 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Nh3 exf6 Bc1 f5 Ng1 f4 Qd3 f3 Qd2 Ke7 Qd1 Ke8 h3 h6 Bf4 h5 Bh2 g3 Qd2 gxh2 Qc1 Ra3 Qd1 Ra8 g4 Qb6 g5 Qa7 e3 Qc5 Bd3 Qb6 Bf5 Qd8 Bg4 hxg4 Kd2 d5 Kd3 Kd7 a4 Kc6 c4 b5 c5 f5 g6 g3 g7 f2 e4 f1Q+ Ne2 b3 e5 g2 a5 g1R e6 f4 a6 b2 e7 b4 e8N Kb5 a7 f3 c6 f2 c7 Nf6 g8N Na6 Qe1 Rg6 Nh6 Bg7 Qc3 Qd6 Nd2 b1Q+ Qc2 Qg1 Ng4 f1R Ne5 Re1 Ra3 Qf2 Rg1 Qc6 Rg3 Qe6 Rb3 Ka4 Rg4 Rg1 Rh4 R1g5 Re4 Rb8 a8Q Qd6 Qa7 Rgh5 Nec4 Qdf4 Ne5 Qh6 Nc1 Rhg5 Nd7 Re5 Rg4 Rb5 Nb8 Ra5 Nd6 Ree8 Nf5 Qa1 Qc4 Nc5+ Kc2 Nb7 Nd3 Qh1 Ne5 d3+ Kb2 Qhg1 Qf4 d4 Ka2 Nh7 Rc3 Rga6 Rg3 Nf6 Rc4 Be6 c8R Qh1 Rd8 Bc8 Rc2 Qhf1 Rd7 Qc1 Ne4 d2 Rc4 d1B+ Nd2 d3 Rcd4 Bc2 Ne4 Qcg1 Kb2 d2 Ka2 d1N Nd2 Bf8 Ng7 Bb3+ Kb1 Bc5 R4d6 Ba2+ Kc2 Be6 Kd3 Nc3 Rd5 Nb5 Kc4 Bg4 R5d6 Bd4 Rd5 Bb2 Rd4 Ne4 Kd5 Bd1 Qb6 Nf6+ Kc6 N5d6 Kc7 Bb3 Qc5 Qb1 Qa7 Nb5#
3R1bk1/n1r1q3/1nQb2B1/pb2P1qB/qB3r2/3K1Rnr/1p1Q2qR/4R3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 b5 cxd4 Qd2 e5 Qd1 exf4 a4 b6 Nc3 Ne7 Nd5 Ng8 Nb4 Be7 Nf3 Bf8 Ne5 Rh3 Nc4 axb4 a5 Rh6 a6 Rh8 Na5 bxa5 Kd2 g5 e4 f5 h4 Kf7 c4 d5 b6 f3 h5 b3 h6 g3 c5 f4 e5 g4 c6 d3 c7 f2 h7 b2 b7 g2 a7 g1B Kc3 d4+ Kc4 d2 Qc2 d1R Be2 f1N Rh4 g3 Qd2 g2 Ra2 f3 Qe1 f2 Rh6 d3 Rh5 d2 Rh1 Qe7 Rh5 Bd7 c8B Bb5+ Kc3 Ng3 Ra4 f1Q Ra3 Nd7 b8R Nb6 Ra1 Bc5 Rh3 g1Q Bf5 Bd6 Rd8 Qfg2 Bg6+ Kg7 Qf2 Rf1 Beh5 d1Q Bd2 Qa4 Re1 Rb8 a8Q Rb7 Qe2 Rc7+ Qc6 Qe3+ Qd3 Q3g5 Qe3 Rf4 Qd4 Nf5 Rf3 Ng3 Qd5 Qd7 Qd3 Ne7 Qd4 Nec8 Qd3 Rg8 h8R Na7 Rh6 Qde7 Qd5 Rc4+ Kd3 Rh8 Bb4 Rh7 Qd4 Kg8 Qf2 Rh8 Qd2 Rh7 Bg4 Rh8 Rh2 Rh3 B4h5 Rf4+
2B2r2/p3q2b/1qq2pQB/1BQ2nrb/nb1K4/1k1n3N/NN4P1/1Nr2q2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 Nd2 f5 Nb1 gxh4 f4 Nf6 b4 Kf7 Rh3 Ng4 Re3 Ke6 Re4 fxe4 f5+ Kf7 f6 Nh6 Ra3 Ke6 f7 Ng8 Rd3 Qa5 Rf3 Qd8 Rf6+ exf6 Ba3 Ke7 Bb2 Ba6 Bc1 Bc8 Ke2 Ke6 c4 d5 c5 h5 b5 e3 Kd3 a3 b6 e2 c6 e1Q c7 a2 b7 a1R Nd2 h3 Nb1 h4 Ba3 h2 Nc3 h1N Qh5 h3 Qh6 h2 Qf4 Bb4 f8Q Ne7 Qd2 Nf2+ Kc2 h1Q Qd1 d3+ Kb2 d4 Qg7 d2 Nf3 d3 Qg6 Rh5 Qc1 d1B Be2 d2 Bb5 Na6 b8N Qhf1 Nc6 Nf5 Nb1 Kd5 e6 Nc5 e7 Rg5 e8N Qee7 Ng1 Bh5 Nd6 d1Q Nc4 Qf3 Nh3 Na4+ Kc2 Qdd6 Nb2 Nd3 Qe3 Be6 c8B Bg8 Qb6 Bh7 Qc5+ Ke4 Kb3 Qb8 Kc4 Qb6 Nd4 Ke3 Nb3+ Ke2 Nc1+ Ke1 Nd2 Qfc6 Na2 Rd1 Nb1 Rb8 Nbc3 Kd2 Nb1+ Kc2 Ng1 Ng7 Kd4+ Kb3 Nh3 Ra8 Bd7 Rf8 Bc8 Ba5 Bb4 Rc1 Bd2 Bb4 Bf4 Re5 Bh6 Rf5 Bb7 Rg5 Bc8 Nf5+
3RnKbR/kp1qr3/1R1b3P/1rQ2nR1/N3Nnb1/r2r3r/2N2p1r/Q7 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 Kd3 f1R Ke4 f5+ Ke5 d5 e4 Kd7 a4 Kc6 h4 Kb6 c4 b3 h5 d3 g6 f3 c5+ Ka7 g7 f4 c6 f2 a5 d2 c7 d4 a6 g3 Qe2 d1B Qg4 f3 Na3 d3 Nc2 b2 Ne3 b1R Qf5 g2 Nh3 g1N Ng5 d2 Nc2 Nf6 g8R Be6 c8R Qe7 Rd8 Ne2 h6 Nf4 Ra5 Rh7 Rh8 Qd7 Rb5 Rg7 Rh5 Rh1 Rb6 Bg8 Ne6 f1R Rg5 f2 Nc5 Be7 Na4 Ne8 Qf8 Ba3 Qd6 Rb5+ Qc5 Qd4+ Kf5 Re7 e5 Qd7+ e6 Rh2 Ke5 Rfh1 Kf5 Rf7+ Ke5 Bg4 e7 Nd6 e8N d1R Nf6 Rd3 Ne4 Re7+ Kf6 Nc6 Nb4 Nd4 Nc2 Bf7 Kg7 Ne8+ Kf8 Nf5 Nf6 Ba2 Ne4 Bg8 Nac3 Rhh3 Qc8 Bd6 Qc4 Rc8 Qd4 Kb8 a7+ Kc7 a8Q R1h2 Qa7 Ra8 Qa1 Ra3 Na4 Qc6 Rd7+ Kb8 Qc5 Ka7 Rd8 Qd7
2q1k3/Qr3nP1/1q6/1b1Nb2B/b1b1bBQ1/r3bQ2/pKq2Np1/3BB2n w - - 0 1 illegal: No possible last move
b1QQ1Q2/n1bp3k/6nB/2p4n/r3r1b1/B2Kb1N1/2P1BbN1/2qQb2q w - - 0 1 legal: proof: b4 e5 a4 a5 g4 axb4 d4 exd4 h4 f5 g5 f4 Ra3 bxa3 g6 hxg6 Rh3 g5 Rc3 g4 Rg3 fxg3 Kd2 Kf7 f4 Kg6 e4 b5 e5 c5 a5 a2 f5+ Kh7 f6 a1B h5 g5 h6 g2 f7 b4 a6 d3 e6 b3 e7 b2 e8Q g3 a7 g4 Qde1 Nc6 Q8e7 Bb7 Q7e2 Qg5+ Qe3 Bd6 f8Q Nf6 Qd8 Nh5 Qe8 Bc7 Qc8 Re8 Nf3 g1N Qf2 g2 Nd4 g3 Qf6 Nf3+ Kc3 g1B Qd2 g2 Qf8 Re4 Ne6 Be3 Nf4 g1B Be2 Nh4 Qd1 d2 Kd3 Bgf2 Ng2 Ng6 Nc3 b1Q Ba3 Qc1 Qcd8 Qh4 Qc8 Qh1 Qcd8 Re7 Ne4 Bc3 Ng3 Re4 Qc8 Rb8 a8Q Na7 Qcd8 Bd5 Qc6 Rbb4 Qb7 Ra4 Qbc8 Ba8 Qf1 Ne7 Qd1 Kg6 h7 Bb4 h8B Kh7 Qf4 Ng6 Bg7 Bba5 Bh6 Bc3 Qg1 d1B Qff8 Bce1 Bf1 Bf3 Be2 Bg4 Qf1 Bc3 Qd1 Bce1
4Q3/1pnP1nQ1/4N3/RKnbQqrN/r2R1rk1/b2p2Nb/n4r2/1n3Q2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 exf6 Na3 f5 Nb1 f4 c4 Bh6 e3 Qb6 d5 Qg6 Bb2 Ke7 Bd4 cxd4 c5 Qg5 c6 Ke8 c7 Bf8 Bb5 Qd8 Bc6 dxc6 Ke2 Ke7 Kd3 Kf6 Kc4 Kf5 a4 h5 g3 d3 a5 b3 d6 f3 e4+ Kg4 e5 f5 e6 f4 e7 b2 e8N h3 a6 h2 a7 c5 Qe2 h4 Ra6 h3 Qe1 f2 Qe5 f1R Qg7+ Qg5 Ra5 f3 Ra3 f2 Nf3 Na6 Qc3 Qf5 Ng5 Rh5 Ra5 Nh6 Kb5 c4+ Qe5 c3 Nd2 b1N Ng7 c2 Nde4 c1N N5e6 Rg5 Nh5 Nf7 Rg1 h1B Rg2 Kf3 g4 h2 Neg3 Na2 Rg1 Bg2 Rh1 Bh3 Rg1 h1N Rg2 Rg6 g5 Kg4 Rh2 Rg8 g6 Bg2 g7 Bd5 Nc5 Bce6 c8Q Be7 d7 Nc7+ Kb6 Bd6 Qf8 Be7 Ne2 Ng3 Rh4+ Kg5 Rd4 Ne4 Neg3 Kg4 Na6 Ba3 Nc5 Rc1 Qe8 f1R Qf8 Rf4 Qe8 Rc8 a8Q Rcf1 Qa6 R1f2 Qa7 Na6 Kb5 Ra8 Qab8 Neg5 Qe1 Ne4 Qe5 Nc7+ Ka4 Rh8 Qf1 Rh7 g8Q+ Rg7 Qh7 Rg5 Qhg7 Bc4 Ra6 Bed5 Ne6 Nc5+ Ka5 Bg2 Kb6 Bh3 Ra5 Bb3 Rb5 Ra4 Ra5 N7a6 Kb5 Bc4+ Kb6 Bd5 Kb5 Nc7+
1q1R3b/N1R1Pp1p/4n2K/q1n4Q/bq6/3n1Q2/1bNQ1N1q/r2bQrk1 w - - 0 1 legal: proof: f4 d5 h4 a5 b4 axb4 c4 e5 e3 exf4 h5 c5 h6 b3 Ba3 b2 Bb4 cxb4 c5 gxh6 Qf3 h5 Qd1 h4 Bc4 dxc4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kh5 Ke4 d4 b5 g4 c3 a4 c2 a5 c1B a6 h3 c6 f3 g5 b3 g6 b4 c7 f2 d5 f1B d6 h2 g7 Bb5 d7 Nc6 a7 Ba4 Na3 b1Q Nb5 b2 Ra3 b3 Ra2 Nf6+ Kg5 Qc2 g8Q b1Q Qg7 b2 Nh3 Rg8 Qg1 Kf3 Qd1+ Kg2 Qh5 Nd4 Rd1 h1N Na3 Ne4+ Kh6+ Kh2 Rd2+ Nhf2 Rd1 Bb7 c8N Qa5 d8Q Ne6 Qd2 N4c5 e4 Bd6 e5 Bf3 Qf6 Rg1 Qfh4 Rf1 Qe4 Kh1 Qe1 Nfd3 Nf2+ Kg1 Ra1 Be7 Ra2 Bf6 Ra1 Ng5 e6 Bh8 e7 Nge6 Ra2 Qb4 Ra1 Qa2 Rb1 Qcc3 Nc2 Qe5 Ra1 Qh2 Rb1 Qd5 Ra1 b1Q Ra3 Qd7 Rc3 Qd8 Rc4 Bcb2 Rc3 Rb8 a8Q Qda5 Na7 Be2 Qf3 Ra8 Rc4 Qbb8 Rd4 Qbb4 Rc1 Bd1 Rd6 Qa2 Rd8 Qab3 Ra1 Qbb8 Ra3 Q3b4 Rc3 Nb7 Rcc8 Nbc5 Rc7 Bd7 Qhh3 Qab5 Nc8 Ra1 Na7 Q5a5 Qhh5 Ba4
3N3B/1PNQnb1k/3rb1r1/1q2K1bq/1n1p4/2brQBn1/1NQ4p/1r1N4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 c5 h5 cxd4 Rh2 e5 Rh1 exf4 b4 h6 g4 Qc7 Rh4 Qd8 Ra3 Bg7 Rg3 gxh4 g5 Bf8 g6 Ne7 Rg4 Ng8 Rg5 hxg5 Kf2 d5 Kf3 a5 e4 f5 c4 h3 c5 g4+ Kf2 g3+ Kf3 h2 b5 d3 e5 a3 c6 d4 c7 a2 h6 a1R h7 d2 b6 g2 b7 a4 g7 Kf7 e6+ Kg6 e7 a3 e8N a2 Qe1 d1Q+ Ne2 g1R Nc3 Be6 c8N Na6 Qf2 Qd7 Ne4 Ne7 Qe1 Nb4 Nc7 Ra3+ Nc3 Rb1 Na7 a1B Bg2 Qb5 g8Q+ Bg7 Qa8 Rd8 h8Q Bh6 Qc8 Bg5 Qh3 Rd6 Nc6 Rab3 Qg4 Kh7 Nd8 Ra3 Be3 Bf7 Na4 Rd3 Qd2 Bc3 Nb2 Be6 Qg3 Bf7 Qd7 Be6 Kf2 f3 Bf4 Bf7 Be5 f4 Qc2 Be6 Bh1 Bf7 Qg2 Be6 Qf1 Bf7 Qe1 Rg4 Kf1 f2 Bf3 Rg2 Bh8 Rg4 Ng3 Be6 Kg2 f1N Kh3 Qe2 Ne4 Ng3 Nf2 Qee5 Bd1 f3 Qe3 Bf7 Be2 Qed5 Nfd1 f2 Bf3 f1B+ Bg2 Be2 Bh1 Qe5 Kg2 Bf1+ Kf3 Bh3 Bg2 Bh6 Bh1 Qh5 Bg2 Rg5+ Kf4 Bf5 Bd5 Rgg6+ Ke5 Bg5 Qg2 Qa6 Bf3 B5e6 Qc2 Qb5+
1N1r4/KPNQ3q/4n1rp/k2pbb1R/q1p5/2rq4/qNnRQ3/3qR1N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 exf6 c5 f5 Ra2 f4 Ra3 Nf6 Ra1 Ng8 d4 Qg5 e3 Qg4 Bd2 Na6 Ba5 Nb8 Bc4 dxc4 d5 Kd7 d6 Qg5 Bb6 Ke6 d7 Qd8 Ba5 Ke7 Bc3 Ba6 Be5 Bc8 Bd6+ cxd6 Kf2 f5 b4 a5 g4 a3 e4 h3 c6 a4 g5 h2 e5 a2 c7 a3 e6 f3 Ke3 f2 Kd4 f1Q b5 f4 g6 f3 b6 f2 b7 Nc6+ Kd5 Nb4+ Kd4 Nf6 g7 Rg8 Qc2 Ne4 Ne2 Qd1+ Qd2 f1R Nec3 Nc5 Qd3 Rf3 Na4 Nc2+ Kd5 h6 Kc6 d5 Kb6 Kd6 e7 Ne6 Qd2 Rc3 Qe2 Qd3 Nb2 Rb8 Ka7 Kc6 e8N Kb5 Nd2 Bd6 Rad1 a1Q Nf3 a2 Rde1 Be5 Ng1 Qe7 d8N Bd7 c8Q Ka5 Nc7 Qb1 Qh5 a1Q Qd1 Qba2 Qe2 Rh8 g8R Qeh7 Rg6 Rg8 Rg2 Rg6 Rf2 Nc5 Rg2 Bf5 Qd7 Ne6 Rg4 Qf3 Rd4 Qa4 Rdd1 Qd3 Rd2 Q1a2 Na6 Ng5 Ne6 Rd8 Nec7 Ne6 Nb8 Bg4 Rf1 Bh3 Rf5 Bg4 Rh5 Bh3 Nf3 Bf5 Re1 h1Q Ng1 Qhf3 Qg2 Qd1 Qf1 Bg3 Qe2 Be5
1Q4q1/np1K1q2/4npqQ/5Q2/6pq/R1Rbb1Pr/5RrQ/qN1rkN2 w - - 0 1 legal: proof: b4 e5 d4 c5 a4 cxd4 f4 exf4 b5 h5 g3 h4 b6 h3 Bg2 hxg2 Ra2 axb6 Ba3 b5 Ra1 b4 Qd2 bxa3 Qd3 Rh3 Qd1 Rh8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 h4 g5 e4 d5+ Ke5 d3 c3 a2 h5 f3 a5 f2 a6 f1Q a7 d2 h6 Kd3 h7 d4 c4 g4 c5 Nf6 c6 Nh5 c7 Nf4 Na3 Qh4 Rb1 a1Q Nf3 g1Q Qb3+ Ke2 Nh2 d1Q Qb6 d3+ Rb2+ d2 Qh6 Qb3 Nb1 Bf5 c8Q Qgb6 Qce6 Bg6 Qf5 Bc5 Rg1 Qff3 Rc1 Ne6 Nf1 Be3 Rc3 Nc6+ Kd6 Ke1 e5 d1R+ Rd2 Rae8 a8R Na7+ Kd7 Rc8 Qfh5 Be4 Qf5 Bd3 Rf2 Rce8 Rac8 Qba2 Ra3 Ref8 Rcc3 Rc8 Rcb3 Rc2 Rc3 Qf4 Rf3 Rg2 Rf2 Rc8 h8Q Qab3 Q8g7 Rh8 Qgh7 Qfb4 Q7g6 Qf8 Qgh7 Qf6 Qh2 Qh4 Qhg6 f6 Qh6 Q6b4 Qhg5 Qe4 Qh6 Nc7 e6 Rh7+ e7 Qbg8 Qfh5 Qeg6 Qf5 Rh8 e8Q Ne6 Qg7 Qhg5 Qd8 Rh3 Qh6 Qh4 Qb8 Qff7+
R1b5/Pb2Qp2/3RNQ2/Kqbn2r1/1pp1r1Q1/4qbn1/1bkn4/1RN3R1 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 c4 a5 c5 axb4 c6 g5 Bh3 dxc6 Qc2 c5 Kd1 c4 Bb2 Ke7 Kc1 Ke8 Qd1 f3 Be5 f2 Bf4 gxf4 g5 Ke7 Bf5 Ke8 Bg4 hxg4 Kb2 Ke7 d4 Ke6 h4 Kf5 a4 Ke4 a5 f1B d5 b5 d6 c5 a6 g3 d7 f3 e3 f2 a7 b3 Kc3 b4+ Kd2 g2 h5 b2 g6 c3+ Kc2 Nc6 Kb3 c2 Ka4 c1B h6 c4 g7 Nd4 h7 Be2 Nf3 f1B Rg1 Qe8 Nbd2+ Kd3 e4 b1N e5 Ne7 g8R Bb2 e6 Ndf5 Ng5 Nd5 e7 Ng3 Ka5 Bf3 Nb3+ Nd2 d8R Bb7 Rg6 Rg8 h8Q Rb8 Qe2+ Kc2 Ne6 Ra8 Rf6 Rg5 Rb1 Qd7 e8Q Bc5 Nc1 Rb8 Rh1 g1Q Qe7 Qe3 Rg1 Bh3 Rg6 Ra8 Qhf6 Qc6 Rd6 Re8 Rg8 Bhg4 Nc7 Bgc8 Ne6 Re5 Rh8 Rg8 Qg2 Rgg5 Qh3 Re4 Qg4 Bd7 Rb8 Bdc8 Ra8 Qb5+
4rn1K/8/4Q1q1/2n2BRb/Rb2prp1/2Q1q1pB/1RR2nP1/2Bq1kqb w - - 0 1 legal: proof: h4 c5 e4 a5 b4 d5 h5 dxe4 h6 f5 Nf3 Qc7 Nc3 Qh2 Nd5 a4 Nd4 cxb4 Nb3 axb3 Ne3 Qxh6 Ng4 fxg4 Be2 Qh4 Bf1 Qh2 c3 e3 Ke2 g3 Kd3 Kd7 Kd4 Ke6 f4 Kf5 Bb2 e5+ Kd5 g5 a4 h5 d4 b5 a5 e2 c4 e1Q a6 h4 a7 h3 c5 Ne7+ Kd6 Ke4 f5 Ke3 c6 Kf2 c7 Nd7 Ke6 Rh4 Kf7 Ng6 d5 Rf4 Ra6 Qe3 Qd3 e4 Ba3 b2 Kg8 b1Q f6 b3 f7 b4 d6 b2 Qc3 Rb8 a8R b3 Qc5 Qc2 Rb6 b1Q Rb7 b2 Bc4 Qa4 Be6 Qa6 Rc1 Qg1 Qc3 h2 Bh3 h1B Rc2+ Kf1 Raa7 Qc6 Ra4 Qd1 Rb3 Ba6 c8B Be2 Rbb4 Be7 f8R Bh5 Rf5 g4 Rg5 Ngf8 Kh8 Qcb6 Bb7 Re8 Bc8 Qbc5 Rb6 Qf5 Rbb4 Qg6 Rb3 Nf6 d7 Bb4 d8Q N6d7 Qdf6 Nc5 Bf5 b1N Qe6 Qdc1 Qb2 Nc3 Qa1 Nd1 Qc3 Qcd2 Bc1 Nf2 Rbb2 Qd1
2r5/4BbpN/kN1QB1r1/p3q1q1/2N1B1Q1/p2qn1P1/4Kn1b/1b1Bb1r1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 e5 c4 exf4 Be3 b5 Bc1 bxa4 b4 h5 Ra3 h4 Rc3 dxc3 g3 h3 Nf3 Qg5 Rg1 Qf6 Rg2 hxg2 h4 Qd8 e4 g1B b5 f5 c5 d5 c6 a5 c7 Kd7 h5 d4 h6 c2 e5 a3 h7 d3 b6 Kc6 b7 Kb6 e6 d2+ Ke2 Bb4 e7 Bh2 e8B Be6 c8B Qd4 Bb2 c1Q Bg2 Nd7 b8N Ne7 Ba6 Bf7 Bc8 Nc5 Qg1 d1B+ Kf1 Ra6 Ba4 Nd5 Bc2 Be1 Bd7 Rc8 h8Q Ne4 Qh7 Nf2 Qh4 Qe5 Ng5 f3 Be6 f4 Qg4 Kb5 Bb3 Bc2 Nd2 Bb1 Nh7 Rd6 Nd7 Ka6 Bd1 Rb6 Bf5 Rg6 Be6 Qc5 Bd4 Qe7 Bc5 Q7g5 Qf5 Nh3 Nb6 f2 Be7 Ne3+ Ke2 f1R Be4 Nf2 Qh1 Rg1 Ndc4 Qd5 Qg4 Qde5 Bd3 Ne4 B3c2 f3+ Kd3 f2 Qg2 Nc3 Qc6 Ne4 Qd6 f1Q+ Qe2 Qf2 Qg4 Qff5 Ke2 Nf2 Bd3 Qfe4 B3c2 Q4d5 Be4 Qd3+
1r2N1N1/2p1PB1p/1p1r4/n1r1b3/2bQbnNB/1kq1Q3/2N1nB2/1K2n1q1 w - - 0 1 legal: proof: d4 g5 c4 d5 e4 a5 h4 gxh4 g4 e5 b4 axb4 a4 dxc4 d5 Qf6 Ra3 Qd8 Rd3 f6 Rd4 exd4 e5 f5 Rh3 Ke7 Re3 Ke8 Re4 fxe4 Kd2 Kd7 Kc2 h3 f4 d3+ Kb2 e3 a5 b3 d6 Kc6 e6 Kc5 g5 Kb4 f5 c3+ Ka1 b6 a6 d2 a7 e2 d7 h2 f6 h1B f7 c2 g6 Nf6 g7 Be4 Nh3 Nc6 Nf2 Nd5 Ng4 Bd6 f8N Nf4 Na3 b2+ Ka2 Qh4 d8B Qe1 Nd7 Ba6 Bh4 Rhb8 g8N Be5 e7 b1N Bb2 c1Q Ndf6 Qg3 Ne8 e1N Qf3 Qg1 Bd4 d1R Bdf2 Rd6 Bc4 Qe3 Bf7 Nc3+ Ka1 Bc4 Nc2+ Kb3 Qg3 Nce2+ Kb1 Rd5 Qf3 Rbd8 Qh3 Rab8 a8Q R8d6 Qa1 Na5 Qd4 Qc3 Qhe3 Rc5
Qn3b2/Kb3pp1/n1RBB1k1/r7/r2R2qQ/PB1r1R1q/1r1p4/R1n2n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 exf6 d5 f5 Bd2 f4 Be3 Bd6 Bc1 Bf8 c4 d6 Nf3 Bd7 Nd4 Bc8 Nd2 Rh5 N2b3 cxd4 c5 Rh4 c6 Rh8 Nc5 dxc5 Kf2 b5 e4 g3+ Kf3 c4 h4 g2 e5 g1Q Ke4 f3 c7 f2 d6 b3 Kd5 b4 Kc5 d3 Kb6 b2 d7+ Ke7 a3 b1R h5 b3 e6 Kf6 e7 b2 e8B c3 h6 d2 h7 c2 Qh5 Na6 Bc4 Bb7 Bb3 Ne7 Rh3 Nc6 Qh4+ Kg6 Rf3 Qc8 d8R f1N+ Rd4 Ncb8 Bd7 Qg4 Bde6 Qd7 c8R Qh3 Bed5 Qdg4 Be6 Rg8 h8Q Ra7 Qe7 Ra8 Qhh4 Rh8 Qd8 Rh5 Rc6 Ra5 Ra2 Ra1 Qc8 b1R Bb2 c1N Bc3 Ra7 Bb4 Rb2 Bd6 Rab1 Qcd8 Rc2 Qc8 Rbb2 Ra1 Rc3 Qcd8 Ra4 Qe8 Rd3 Qed8 Nb4 Qe8 R7a5 Qed8 N4a6 Ka7 Nd7 Qa8 Ndb8
1K1QN3/1nrpbbp1/1p1nk3/4P3/Q3Nb1N/Bp3nr1/5nN1/q2Br1B1 w - - 0 1 legal: proof: e4 h5 h4 a5 b4 axb4 g4 hxg4 d4 f5 a4 e5 Qe2 exd4 e5 c6 Qd1 c5 Ra3 c4 Rd3 cxd3 Rh3 Bc5 Re3 Bf8 Re4 fxe4 Kd2 Kf7 f4 g3 c4 g2 c5 b6 f5 Nf6 h5 Na6 c6 Nh7 c7 Bc5 a5 Qg8 h6 Bd6 f6 Ng5 h7 Ra7 Ba3 Bb7 c8N Bd5 Be2 Rc7 Qa4 b3 Nc3 Ke6 f7 Be7 f8B Nf7 Nf3 g1N Nd6 Nc5 a6 Nb7 Ne8 Nfd6 a7 Qf7 Nh4 Qf1 a8Q Qa1 Bd1 e3+ Ke1 e2 Kd2 Bc4 Qd8 Bd5 Ng2 Bc4 Ke1 d2+ Kf2 d3 Ke3 e1B Ne4 Nf3 Kf4 Bd5 Bc5 Bc4 Bg1 Bg3+ Ke3 Rg8 h8N Bf4+ Kf2 Bd5 Ng6 Rh8 N6h4 Rh5 N4f6 Rg5 Ne4 Bh2 Ke3 Rg3 Be2 d1N+ Kf4 Nf2 Bd1 Bf6 Be7 Nb5 Ba3 d2 Bc2 d1R Ke3 Rf1 Bd1 Be7 Kf4 Nh3+ Ke3 Re1+ Kd3 Bc6 Kc4 N5d6+ Kb4 Nf7+ Kc4 Bd5+ Kb5 Nfd6+ Ka6 Nf2 Ka7 Rh3 Qa5 Bf4 Kb8 Rg3 Qb5 Bc4 Qa4 Bd3 N4f6 Bg6 Ne4 Bf7
2n2b2/1B2b2r/Q2B2b1/n1Kb2N1/k7/ppBrPp2/2pqN3/n1QQnB2 w - - 0 1 legal: proof: g4 a5 b4 e5 a4 g5 h4 gxh4 f4 exf4 c4 d5 Rh3 dxc4 Rb3 b6 b5 Nc6 Rb4 axb4 a5 Nb8 a6 Ne7 Ra4 Ng8 Ra5 bxa5 Kf2 Kd7 d4 f5 d5 c5 b6 h5 a7 c3 g5 c2 e3 f3 d6 Kc6 d7 f4 g6 h3 b7 a4 g7 h4 Ba6 c4 Nd2 c3 Ne4 h2 Ne2 h1N+ Ke1 h3 Nd6 f2+ Kf1 h2 Qd3 Rh7 Qd1 Ne7 Ba3 c1B g8Q c2 Kg2 f1N Kf3 Nf2 Qd3 Nd2+ Kg2 h1B+ Kg1 Bd5 Ne4 Nb3 Kf1 Na1 Ng5 b3 Bb4 Ba3 Bc3 f3 Ke1 Kc5 Kd2 Nbc6 b8B Na5 Bd6+ Kb6 Qdg6 Nd3 Bc4 Rb8 a8B Ne1 Bb7 Bc5 Q8e6 a3 Qg4 Ra8 Qg1 Ra7 Ba8 Ba6 Bb7 Nc8 Bd3 Bac4 Qh1 Kb5 Qe6 Qc7 d8Q Ka4 Qef6 Qd7 Qg6 Ng2 Qc1 Ne1 Qh6 Bf7 Qhf6 Bcd5 Bda6 Ng2 Kd3 Bb4 Kd4 Ne1 Qg6 Be7 Qd3 Bg6 Qb6 Qd8 Qdd1 Ra8 Bc4 Bf8 Qa6 Qd7 Bc7 Bbe7 Bd6 Qd8 Kc5 Rb8 Ba8 Rb4 Bd3 Rd4 Bb7 Qd7 Bf5 Rd3 Bh3 Qg4 Bf1 Qg2 Ng3 Qd2 Ne2 Rh6 Bh8 Rh4 Bc3 Rh7
qR1rq1N1/pn1n4/r2N1Bk1/4r3/1b1NP3/1b1NK1r1/5N1N/br4Rn w - - 0 1 legal: proof: h4 c5 c4 d5 d4 cxd4 a4 g5 f4 gxh4 e3 e5 Qd2 exf4 Qd3 b5 Qc3 dxc3 axb5 d4 Be2 d3 Bd1 Bf5 Ba4 Bc8 Bc2 dxc2 Ke2 h5 b4 f5 g4 Kf7 b6 h3 g5 h2 b7 f3+ Kf2 h4 c5 f4 b5 h3 c6 Bb4 c7 Ne7 b6 Kg6 Bb2 c1R Ra3 c2 Bd4 Rh5 Ra6 Qe8 Ra1 Nf5 Bf6 Nd6 Nd2 Rb1 Ne4 Nd7 b8N c1B b7 Bb2 Na6 Rh6 b8N Nb7 Ra2 Ba1 Nac5 Rb3 Nd3 Rh5 Kf1 f2 Ke2 f1R Nc6 Rfb1 Rb2 f3+ Kf2 Ra3 Nd4 Ra6 Rb3 Nf8 Rb2 Be6 c8N Nd7 Ncd6 Rd8 Rb3 Bbc3 Rb5 Bb4 Rb6 Bb3 Rb5 Kh7 g6+ Kh6 g7 Re5 g8N+ Kg6 Nge2 Rg1 N2g3 Rb1 Rc1 h1Q Rg1 h2 Nf1+ Kh5 Kg3 f2 Kf4 Qg2 Rb6 h1N Nh2 f1R+ Nef2 Kg6 Rb5 Rfe1 e4 Re3 Rb6 Rg3 Rb5 Qh3 Rb6 Qhe6 Rb5 Qd5 Rb6 Na5 Rb5 Qa8 Rb8 Rg2 Kf3 Nb7 Ke3 Rg3+
2Rnbn1q/BkbRK2b/R4r2/4R1rn/8/n1rPn1RR/6N1/1b3rbB w - - 0 1 legal: proof: g4 g5 b4 h5 c4 d5 f4 gxf4 b5 e5 g5 f3 Nc3 dxc4 Nd5 a6 Nf4 axb5 Qc2 exf4 Qf5 b4 Qg4 hxg4 Kf2 Kd7 a4 Kc6 h4 b5 e4 f5 e5 b3 e6 b2 h5 b1N a5 b4 g6 c3 a6 g3+ Ke1 f2+ Ke2 f3+ Ke3 g2 Kf4 b3 Ke5 b2 e7 f4 e8R c2 g7 Nf6 g8R Nbd7+ Ke6 Bd6 h6 Nh5 Rg5 Rg8 Bd3 f1N h7 f2 Rh3 f3 Rb5 Rg5 Raa5 Na3 h8R b1B Ne2 g1B a7 Ba6 Rb3 Bb5 Ra4 Kb7 Rg4 c5 Bh7 c4 Rb4 c3 Rgc4 Bc7 Rd4 Qc8 Bb2 c1N Bg8 c2 Bh7 Na2 Rd6 c1R Rg4 Ne3 Nf4 f1B Rgg3 f2 Bd4 Nb4 Be4+ Nc6 Bh1 Bfd3 Ng2 Bh7 d3 Rc3 Kf7 Qb8 Re5 f1R+ Ke6 Qf8 Bb6 Qg7 Rc8 Qh8 Bc5 Nd8+ Ke7 Nf8 Bb6 Be8 Rd7 Kc6 Bc5 Rb8 a8R Rb6 Ra6 Kb7 Bd4 Rbg6 Ba7 Rgf6
rk3N1B/1B1q1Rqq/1P2q2n/1b1b1rn1/K5R1/R6p/R1Rqb3/2bnR3 w - - 0 1 illegal: No possible last move, all moves rejected
3rB1Kn/kB4N1/nb3rB1/1rN4q/2b2B2/pP1Bq3/b3B1b1/1nq1R1n1 w - - 0 1 legal: proof: f4 a5 h4 c5 d4 cxd4 f5 g5 f6 gxh4 Kf2 a4 Ke1 exf6 Bh6 f5 Bc1 f4 Qd3 b5 Qc3 Nc6 b3 a3 Qb2 axb2 a4 Nb8 a5 Qc7 Ra3 Qd8 Ra4 bxa4 Kd2 f5 Kd3 d5 g4 Kd7 c4 Kc7 e4 Kb7 a6+ Ka7 c5 h5 e5 a3 g5 f3 g6 f2 e6 h3 c6 h4 g7 h2 c7 f4 e7 f3 e8B h3 Bf7 Ne7 g8B Ng6 Bg2 f1B+ Ne2 f2 Bf4 Bf5+ Be4 Qg5 c8B Bc5 Bh7 Bb6 Bb7 Rd8 Nd2 b1N Be5 Nh8 Bd6 Qe3+ Kc2 d3+ Kc1 d4 Rg1 h1N Nf4 h2 Ne6 Ng3 Be8 h1B Ng7 Bhg2 Bf4 Ne2+ Kd1 Rd5 Bhg6 Rb5 Bf3 Be4 Rh1 Ng1 Be2 Bf5 Ne4 d2 Kc2 d1R Bd3 Be2 Nc5 f1Q Bf3 Qe1 Bfh5 Qh4 Bg4 Qh5 Bf3 Rf1 Bg4 Nh3 Bf3 Rf2 Re1 Ng1 Bg4 Nc6 Bf3 Rd8 Bg4 Nb8 Bf3 Bef1+ Be2 Ka8 a7 Na6 Nd7 Kb7 a8B+ Ka7 Bb7 Bfe4 Bh6 Rf6 Nc5 Bf5 Bf4 Nd2 Bde4 d3+ Kc3 Nb1+ Kc4 d2 B4d3 d1Q Bbf3 Rb8 Kd5 Qdc1 Bfe4 Rf7 Kd6 Rf6+ Ke7 Ra8 Bh2 Rd8 Bf4 Be6 Bb7 Bf7+ Kf8 Bc4+ Bf7 Be4 Kg8 Bfg2 Bf1 Nd2 Bde2 Bb1 Bd3 Ba2 Bfe2 Re6 Bfg6 Nb1 Bbf3 Rc6+ Bd5 Re6 Bb7 Rf6+
2B1K1B1/b2r4/1n4kB/3b1b1p/qbrp4/nbR1B3/rPRB4/B1q1Q2r w - - 0 1 illegal: Other
8/4b1p1/1B1q1Bq1/3kn1PB/3pbb1K/rRbB3b/rn4R1/q3BNBq w - - 0 1 legal: proof: e4 c5 d4 b5 a4 bxa4 h4 f5 h5 fxe4 h6 Nxh6 Qd3 Ng4 Qd1 Nh2 c4 d6 d5 Bb7 Qd4 Bc8 Nd2 Bg4 Nb3 cxd4 c5 Bh3 c6 Bc8 Nc5 dxc5 g4 Kf7 b4 a5 f4 e5 Kf2 h5 Kg3 e3 g5 e2 d6 Ke6 d7 e1Q+ Kh3 c4 f5+ Kd5 f6 c3 c7 a3 f7 e4 b5 e3 b6 a2 b7 h4 Rb1 a1B Bb2 c2 Rc1 a4 Bd3 e2 Rb1 c1B Bb5 a3 Nf3 a2 Ba6 Bf4 Rf1 Be7 f8B Nc6 b8B Ng4 Bc3 Nge5 Rb4 Nd3 Rb3 Nb2 Rf2 Qb1 Nd2 e1Q Rg2 Ne5 Bd3 Ra3 Nf1 Rh6 Ba7 Rha6 Bb6 Qe4 Bd2 Qg6 Be3 Qc1 Bg1 Qcc6 Bf5 Qcd6 Bg4 Qde8 d8B Qec6 Rbg3 Bf5 c8B Be4 Bcf5 R6a5 Kh2 h3 Be2 Qc1 Bfg4 Bf5 Bh5 Be6 Bd3 Bd7 Kh1 h2 Re2 Bf6 Kg2 Rc3 Ba6 Qb8 Nd2 Na4 Bb4 Qd6 Be3 h1B+ Kh2 Be4 Rg2 Bb2 Bae2 a1Q Bf2 Bc6 Kh3 Bd7+ Kh4 Bh3 Bf1 Rc2 Rb3 Ra7 Bd3 Qh1 Nf1 Ra8 Bd2 Bc3 Be7 Ra2 Bg1 Nb2 Be1 R8a5 Bf8 Bd8 Be7 R5a3 Bf6 Be7
K3q3/b1pbnq1R/2rq1nB1/p3PrrR/k4b2/4q1BR/1R1Q4/1RR2r2 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 c5 bxa4 c6 g5 Ra2 g4 Ra1 dxc6 Na3 c5 Nb1 c4 Nc3 h6 Nf3 h5 Ne4 Qh4+ Nf2 gxf3 g4 Qe7 g5 Qd8 Ng4 hxg4 Kf2 Kd7 h4 Kc6 e4 Kb5 b4 a5 d4 f5 h5 a3 h6 a2 d5 Ne7 e5 Bd7 g6 Rg8 h7 Qe8 h8R Bh6 d6 Ra6 g7 Rc6 Qe1 Ka4 b5 c3 b6 c2 Rb1 a1Q b7 Qa3 Bd3 Bg5 Bd2 c1Q R1h3 Qb4 R8h5 g3+ Kf1 g2+ Kf2 Qca3 Qd1+ Qab3 Be1 Qa3 Qd2 g1B+ Kf1 f2 Ke2 f1R Bg3 Qb6 Be4 Qac5 Kd3 f3 Rh7 f4 Bg6 f2 Ke4 f3 R3h5 Rh8 g8R Bf4 Rgg7 Rf8 Rh3 Rd1 R7h5 f1R Rgh7 f2 Rb2 Rf5 Rb1 Be6 d7 Qd6 d8R Nd7 b8R Qa7 R8b2 Nf6+ Kf3 Qad4 Rdb8 Bd7 Rc1 Bh2 R8b6 Rg1 Rbb1 Rdf1 R6b2 Q4c5 Bh4 Rgg5 Bg3 Nfd5 Ke4 Qa3 Rc5 Bg1 Kd4 Qe3+ Kc4 Ka3 Kb5 Nf6 Rc4 Rd1 Rcc1 f1Q+ Qe2 Qff3 Qd2 Rf1 Qg2 Qfd5+ Rc5 Qdf7 Rcc1 Qe1 Qd2 Bb6 Ka6 Ba7+ Kb7 Qe4 Rb6 Qe3 R6b2 Bc8+ Ka8 Ka4 Rb7 Be6+ Rb8 Bc8 R8b2 Bd7+
4NN1R/3q4/kpR2Nqq/3pq3/1r1P1Q2/b2bRKR1/r5pq/1r1N4 w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 a6 b5 axb5 a3 bxc4 a4 c3 a5 c6 Qb3 b6 Qa4 Na6 Qd1 Nc5 a6 Nb7 axb7 Ra7 b8R g5 Ba3 g4 Ra8 Ne7 Bxe7 g3 Bb4 Ba6 Ba3 Bc8 Bc5 h5 Bf2 Rg8 Qc1 gxf2+ Kd1 Rc7 g4 Qh4 g5 Ra7 Bh3 Rh8 Bg4 hxg4 Kc2 Qh6 Qd1 Qf6 Kc1 Qd8 h4 f1Q e4 d5 g6 Kd7 g7 Kc7 g8R Kb7 e5 f5 h5 f3 h6 g3 h7 c2 d3 f2 Kd2 c1R Ke3 g2 e6 f4+ Kf3 c5 e7 c4 e8N c3 Qc2 Bf5 Ra6 Ba3 Ne2 Qe1 Rg6 Qd7 Qa4 c2 Nbc3 Rb1 Rh5 c1Q Ng3 Qe5 Nge4 Qc2 Qd4 f1Q+ Qf2 Qh1 d4 Rb4 Rhh6 Qh2 N4f6 Bd3 Nd1 Qcc6 Rg3 Qce6 Ng4 Qg6 Ngf6 Rf8 Ra5 Rf7 Rc5 Ka6 h8N Re7 Qf1 Re6 Rac8 Rc6 Rb5 Rc1 Rc6 Rcb1 Rh5 Qh6 Ng6 Ra8 Nf8 Qg6 Kf2 f3 Rh8 Qhh6 Rbc5 Ra7 Rc3 Ra8 Rg5 Qeh2 Ke3 f2 Kf3 Qe5 Rg3 Qh2 Qg1 f1Q+ Qf2 Qfh1 Qd2 Qhh6 Qf4 Q1h2 Rb3 Bf5 Re3 Bd3 Re6 Rc8 Rd6 Rc2 Rc6 Ra2
Kn1q2Q1/p3rb1r/5Br1/1n2NB1P/rb5N/4b3/qN4qb/2BNkrB1 w - - 0 1 legal: proof: e4 b5 h4 c5 f4 g5 a4 bxa4 d4 cxd4 g4 f5 b4 fxe4 f5 Kf7 Rh3 Ke8 Rf3 h6 Rf4 gxf4 g5 h5 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 Kf7 c4 d5 b5 e5 g6+ Kf6 h5 Kg5 b6 Kh4 f6 Kg3 g7 Kf2 c5 e3+ Kd3 e4+ Kc2 g3 f7 f3 c6 g2 c7 a3 Kb3 a2 Ka4 a1Q+ Kb5 d3 b7 e2 Qd2 e3 Qd1 e1B Qb3 d4 Be2 d2 Ba3 d1R Nc3 d3 Na2 d2 Nc3 Be6 c8N Rh7 Bc4 e2 Nb6 Nf6 g8N Nd5 Nh6 Bd6 f8B Bf7 Bd3 Qa2 Be7 Ra1 Nba4 d1R Bc1 Bh2 Nf5 Nc7+ Ka5 Bd2 Bf6 e1R Nh4 Re7 Bf5 Ke1 Qd5 f2 Ngf3+ Kf1 Qb3 g1B Ne5 Ke1 Qc4 f1Q Qe6 Nba6 b8B Nb5+ Bc7 Rb8 Bb6 Bge3 Qc8 Qg2 Qe6 Na3 Nb2 Rc8 Qc4 Rc6 Qg4 Nb8 Qg8 Nd7 Ka6 Nb5+ Kb7 Nb8+ Ka8 Rce6+ Nd5 Bb4 Bc5 Rc6 Nc3 Rd4 Ncd1 Rf4 Bd3 Rf1 Bb1 Qad5 Be4 Ra4 Bf5 Qa2 Bb6 Bh6 Bg1 Be3 Bg7 Qc2 Bh8 Rg6 Bf6 Qg2+
2R2b2/brR3r1/bNQ2p2/1P1R1r2/1RN1rn1n/2k5/1q2n1qK/2qq2NN w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 b4 Ke7 e4 Ke6 Ke2 Ke5 Kf1 d5 Kg2 f1N c4 a5 h4 f6 b5 a3 h5 a2 h6 d3 h7 Kd4 c5 d2 e5 g3 c6 a4 g6 a3 c7 Nc6 e6 f3+ Kh3 f2 g7 g2 Qf3 d1R Qe2 Ne5 Qh5 Ra4 Qf7 Ba6 c8R Nd3 e7 Nf4+ Kg4 Ng3 e8N f1R Rc1 Ne7 g8N Nge2 Rh5 Nf5 Qe6 Nh4 Qf7 Qa8 Ne7 Rg8+ Ng7 Kd3 h8R Re4 Rc6 d4 Nd2 Rc1 Rb1 a1Q Rb4 a2 R8h7 Qb2 Nc8 a1Q Nc4 Kc3 N8b6 d3 Rc8 d2 Rd5 d1Q Qb7 Rc2 Qc6 Qac1 Rg5 Rf2 Nf5 Rg7 Ng3 Rd2 Nh1 Rdd7 Ng3 Rb7 Nh1 Nfg6+ Kh3 Rf5 Kh2 Ngf4 Nf3 Rg6 Rhc7 Rg7 Nfe5 Nd3 Nf3 g1B+ Kh3 Bgc5 Kh2 Ndf4 Ng1 Rh7 Nd7 Ba7 Ndb6 Rg7 Rg2 Nd4 Rd2 Nde2 Rd5 Ree5 Rc5 Rb8 Qe8 Qe4 Qc6 Rb7 Rd5 Qf3 Nd7 Re4 Ndb6 Qg2#
1k5B/q1qn4/bNnQ3P/p5B1/NN1N1b2/1qr1p2K/rr2b1BB/3n3q w - - 0 1 legal: proof: e4 b5 h4 c5 f4 g5 a4 bxa4 d4 cxd4 g4 f5 b4 fxe4 f5 Kf7 Rh3 Ke8 Rf3 h6 Rf4 gxf4 g5 h5 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kf2 d5 Kg2 Kd7 c4 Kc7 b5 e5 h5 a5 g6 f3+ Kg3 a3 g7 e3 f6 a2 h6 a1R c5 e4 c6 e2 f7 e1Q+ Kh2 g3+ Kh1 g2+ Kh2 f2 Nd2 d3 Ba3 d4 Bc5 Nf6 g8N Ra2 Ngf3 Nfd7 Nb1 g1Q+ Kh3 d2 Bg2 f1B Nf6 d3 Nc3 Be2 Bd4 Bd6 f8B Ba6 Na4 Bf4 b6+ Kc8 c7 Nc6 Bb2 Rb8 Be7 Qgf2 Nd5 Qh1+ Nh2 Kb7 c8N Qc7 Bg5 Qd4 Ba1 e3 Nb4 Re8 Bb2 Re5 Bc3 Rc5 Ba1 Rc3 Bb2 Qe1 Nf3 Qg7 Nd4 Ka8 Qc1 d1Q Qd2 Qb3 Qd1 d2 Ba1 Rb7 Bb2 Ra7 b7+ Kb8 Ncb6 Qf1 Qb1 d1N Qg6 Rc2 Bc3 Rcb2 Qd6 Qh7 Be1 Ra8 Bg3 Qh1+ Bh2 Ka7 b8B+ Kb7 Ba7 Rc8 N6d5 Qf7 Bc5 Qe7 Ndb6 Kb8 Ndc2 Qe4 Bh4 Ne7 Bd4 Qb7 Qc5 Qd8 Bg5 Qa7 Bh8 Rc6 Qd5 Qdc7 Nd4 Rc3 Qd6 Nc6
2KNk1b1/2B1qrpQ/pb1rN3/2NPq1br/3B2n1/Nr1n3r/4B3/r2B4 w - - 0 1 legal: proof: d4 h5 h4 b5 e4 d5 a4 bxa4 g4 hxg4 c4 e5 b4 dxc4 d5 Bf5 Ra3 Bc8 Rd3 f6 Rd4 exd4 e5 f5 Rh3 Ne7 Re3 Ng8 Re4 fxe4 Kd2 c5 f4 e3+ Ke2 d3+ Ke1 c3 f5 c2 h5 a6 b5 g3 e6 e2 Kd2 g2 Kc3 e1Q+ Kc4 a3 e7 a2 b6 a1R b7 d2 h6 Qe5 f6 Nd7 b8B Ra7 h7 Nh6 Be2 Ng4 Bb2 c1B Qc2 d1R Bc7 Rd3 Nf3 g1R Ne1 Rgg3 Na3 Rb3 Bd4 Bg5 Nd3 Rh3 Bd1 Rab7 Be2 R7b6 Bd1 Rd6 Qb1 Rg8 h8N Rh5 Nf7 Rgh8 Qc2 Rh3 Qh2 R8h5 Be2 Nb8 Bd1 Nc6 Qc2 Qd7 Nd8 Nb4 Qh2 Qde6 Qh1 Bd7 Qe4 Qf7 Qh7 Be6 Be2 Qg6 Bd1 Bg8 Be2 Qge4 f7+ Kd7 e8B+ Ke7 Nf4 Nd3 Ba4 Rf1 Nb5 Kd7 Nfe6 Bfe7 f8N+ Ke8 Nd7 Rf7 Na3 Bef6 Nef8 Qe7 Nfe6 Qe5 Bf3 Be3 Bd1 Bfg5 Be2 Rb1 Bad1 Bg1 Kc3 c4 Ndc5 Ra1 Kc2 c3 Kb3 c2 Ka4 c1R Ka5 Rd7 Kb6 Rc3 Kb7 Rd6 Kb8 Rb3+ Kc8 Bf2 Bf1 Be1 Bfe2 Ba5 Qe4 Bb6 Qf5 Q5f6 Qh7 Qe5
3r2bB/5kqn/2rb4/q1Nr1B2/NP3bB1/r1n1p1N1/2p3N1/Q1B1Kbn1 w - - 0 1 legal: proof: e4 b5 h4 d5 f4 f5 a4 bxa4 c4 dxc4 b4 g5 g4 fxe4 f5 Nh6 Rh3 Ng8 Rf3 h6 Rf4 gxf4 g5 h5 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 d4 c5 g6 a5 d5 e5 f6 g3 g7 c3 d6 e3 d7+ Kf7 h5 g2 h6 c2 h7 e2 Kf2 e1R Nh3 g1N Qd3 c4 Qe2 c3 Qe4 f3 Qe2 e4 Qa6 e3+ Kg3 a3 Qe2 a4 Nd2 a2 Nf4 a1B Qf2 a3 Qe2 a2 Bh3 f2 Qb5 f1B Bf5 Qa5 Qa4 Rd1 Ng2 Na6 Ne4 Nc5 Bg4 Rd5 d8N+ Kg6 f7 Nf6 g8B Be6 Qa3 Na4 Nb7 Ra6 Kh2 Bd6+ Ng3 Bb2 Nc5 a1Q f8N+ Kg7 Bd2 c1R Nfd7 c2 Kh1 Rc6 Nb6 Nc3 Nba4 Rb1 Bf7 Rd8 Bg6 Bg8 B6f5 Kf7 h8B Nh7 Kh2 Rd1 Bc1 R1d3 Kh1 Ne4 Qa2 Bbe5 Qb1 Qd4 Qa1 Ra3 Kh2 Nc3 Kh1 Bf4 Kh2 Nf3+ Kh1 Nh4 Kg1 Qg7 Be4 Bc4 Bd3 Nf3+ Kf1 Ng1 Ke1 Ba6 Bdf5 Bf1
2b1n1R1/1Bqr2R1/3Bn1qp/1qR1KB2/b2rP3/4p1k1/n1nRq2N/B1b5 w - - 0 1 legal: proof: h4 f5 b4 e5 d4 g5 e4 gxh4 d5 a5 d6 axb4 Bh6 f4 Qd4 exd4 Nd2 d3 Nc4 cxd6 Ne3 d5 Bg7 fxe3 Bb2 d4 Ba3 Bd6 Bc1 Bf8 a4 Ke7 g4 Kf6 c4 Ke5 c5 Kf4 a5 d5 g5 b5 c6 h3 f3 h2 c7 b3 a6 b2 a7 b1Q g6 b4 g7 h6 Nh3+ Kg3 f4 b3 f5 b2 f6 d2+ Ke2 d1N f7 d3+ Ke1 d4 Ra3 d2+ Ke2 Rh7 Bg2 d3+ Kf1 Nc6 Rb3 Nf6 Rb6 Nc3 Ng5 d1B g8R d2 Rb7 Na2 Bh3 Ba3 f8B Ne8 Bf5 Ba4 Ke2 Rd7 Rd1 h1Q Nf3+ Qg5 Be7 Qg6 Nh2 Nd8 Bb4 Rb8 a8B Ne6 Ra7 Qc2 Bb7 b1N Bb2 Rd4 Ba1 Bc1 Bc5 Na3 Be7 Rd7 Bf8 Qc3 Bd6+ Qe5 Kd3 Nc2 Kc4 Qf4 Kd5 Qf1 Ra5 Qa6 Rc5 Qb5 Rg7 Ra8 Re1 Ra7 Re2 d1Q+ Rd2 Qde2 Ba8 Ba6 c8R Rd8 Rb8 Rad7 Bc6 Bc8 Bb7 Kh4 Bg4 Qff7 Ke5 Kg3 Bf5 Qe7 Bc7 Rd4 Bd6 Qc7 Ba8 Ba6 Bb7 Rd7 Ra8 Nf6 Rag8 Ne8 Ba8 Bc8 Bd5 Nf4 Bb7 Ne6
4b3/k4q2/1R1R1p2/r1Q3b1/N5p1/p2rqPp1/nNNR1Nrn/Kr4bR w - - 0 1 legal: proof: d4 b5 g4 c5 a4 cxd4 g5 bxa4 g6 e5 Bg5 e4 Bd2 e3 Bh3 hxg6 Kf1 exd2 Kg2 g5 Kg3 g4 Bf1 Bc5 Kg2 Bf8 e4 d5 c4 Kd7 b4 Kc7 h4 Kb7 f3 a5 Kf2 g5 Ke2 f6 Kd3 a3 Kc2 a4 h5 g3 b5 a2 Kb2 d3 c5 d4 e5 Bd7 e6 Nh6 e7 Qe8 b6 Ra5 Qc1 d1Q Na3 d2 Nh3 d3 Nc2 Qf7 e8N Ng4 h6 Qe2 h7 d1R Nf2 d2 c6+ Ka6 c7 Bh6 c8N Nc6 b7 Nb4 b8R Nh2 Ned6 g4 Nc4 Be8 Rb5 Qe3 Bd3 Bg5 N8b6 Ka7 Rd5 Rg1 Rd6 d1R Rb1 Rg2 Ka1 Rd2 Be4 Rd3 Qa3 Rg8 h8R Rg7 Rbd1 Rh7 Rd2 Rh6 Kb2 a1B+ Kb1 Na2 Qc5 Bd4 Nb2 a3 Ka1 Rh4 Na4+ Kb8 Qb5+ Ka7 Nc5 Qe1+ Nd1 Rc3 Rf1 Bc6 Rb8 Be8 Ne3 Rh7 Bc2 Rd3 Rh1 Qc4 Bb1 Rc7 Rbb6 Qf7 Na4 Rc1 Nc2 Bg1 Nf2 Qe3 Qc5 Rxb1+
1QqR2RR/1n1rQ2n/8/1rR1N2R/2Q1K3/r1qnpP2/1p5r/kbq4b w - - 0 1 legal: proof: d4 c5 b4 cxd4 e3 a5 Ba6 axb4 Bf1 d3 Kd2 d5 Nc3 d4 Nb1 g6 Qe1 Bg7 Qd1 Be5 Ke1 d2+ Ke2 d3+ Kf3 Bd4 exd4 f6 Kf4 Nc6 Ke3 Nb8 d5 g5 f3 g4 Bb2 g3 Be5 fxe5 Nc3 Qd7 Nb5 Qd6 Nc3 Qd8 Ne4 h5 Nf2 gxf2 g4 Qd6 g5 Qd7 Bh3 Nf6 Bg4 Ng8 Ke4 Ra7 Qf1 Qd8 Qd1 Nd7 Kf5 Nh6+ Kg6 hxg4 Kh5 Ra3 Kh4 Ng8+ Kg3 Ra8 Kg2 Nb8 a4 Kf7 c4 f1R h4 b5 c5 e4 g6+ Kf6 d6 Ke5 g7 Kd4 h5 Kc3 a5 Kb2 d7 e5 a6 e3 c6 g3 h6 e2 a7 e1Q c7 e4 h7 e3 Qa4 d1N Rh4 d2 Rd4 b3 Qa6 b4 Nh3 Nf2 Qc6 d1R Rf4 Nf6 g8Q Qc3 Qg5 Na6 Qb7 Nc5 Qf5 Nfd3 Qb8 Nb7 Ng5 Rh1 Re4 Rh5 Qe6 Qf8 Nf7 Rb5 Kh3 g2 d8R g1Q Re5 Rd2 Qd7 Qgc1 Kg3 Qfc5 Qe8 Bh3 c8Q Bg2 Ra5 Bh1 Rh5 Rh2 Qce6 Qc8 Ne5 Rf8 h8R Nh7 Qg8 Rf7 Qe7 Kb1 Qg4 b2 Qc4 b3 Rdg8 Rd5 Rc5 Ka1 Rd8 b1B Rdg8 Rd7 Kg4 Rg7+ Kf5 b2 Ke4 Rg6 Qc7 Rb8 a8R+ Ra6 Qb6 Ra3 Qbb5 Na5 Qbb3 Rb5 Rb8 Qc7 Rbd8 Nb7 Qbb4 Qc8 Qbb3 Rba5 Qb6 Rb5 Qc7 Qa5 Qb8 Qac3
1k1BB2q/1q4nB/4nn2/1B2b2P/3B2Br/Rb4Qr/Kn2qQr1/1q2q3 w - - 0 1 illegal: No possible last move
BQ3Br1/1pN5/1qq1p1pB/1bppn1b1/3QB3/2r1nBPr/2b3B1/4K1k1 w - - 0 1 illegal: No proof kernel
1Q1q4/1B1bn1Q1/Bn1bPQ2/8/1r1B3K/n2N1r2/2np1B2/Qn2qkbr w - - 0 1 legal: proof: g4 h5 a4 b5 h4 c5 f4 g5 d4 gxf4 b4 cxd4 g5 e5 Rh3 a6 Rg3 a5 Rg4 hxg4 Nd2 e4 Ndf3 exf3 Rb1 Qf6 axb5 Rh7 b6 Qd8 b5 Rh8 Rb4 axb4 Kf2 Ke7 c4 Ke6 e4 Ke5 h5 d5 c5 f5 b7 b3 c6 b2 h6 b1N g6 d3 c7 Kd4 b6 d2 g7 Na3 e5 Ra4 h7 Nd7 b8B Rb4 e6 Ne7 b7 Nb6 g8B Bd7 Bg2 Kd3 c8Q g3+ Kf1 d4 Qc5 f2 Qa4 d1N Bc6 Nc3 Kg2 f1R Kh3 g2 Qd5 f3 Bb2 f2 Ne2 g1B Kh4 f4 Qe5 f3 Qg7 Ncb1 Bg3 Ke3 b8Q d3+ Nf4 Kd2 Qg6 Ke1 Bd4 d2 Be4 Nec8+ Qg5 Bd6 Qf6 Ne7 Nd3+ Ke2 Bf7 Rf8 h8Q Re1 Qe5 f1Q Qeg7 f2 Bfg6 Rf3 Bb7 Rc1 Qf6 Qe1 Qhg7 f1N Bf2 Ne3 Bge4 Rd1 Ba6 Kf1 Beb7 Nec2 Qa5 Rc4 Qc3 Rb4 Qa1 Qe5 Be4 Ke2 Qc7 Bh2 Qb2 Rh1 Beb7 Kf1 Qb8 Qe1 Qa1 Bg1+
3NQ1Nr/1KN3nb/2P1Q3/1pnN4/1R3r1Q/p2p3p/p2qp1bQ/2k3q1 w - - 0 1 legal: proof: b4 g5 h4 gxh4 d4 b5 c4 c6 a4 Qa5 Ra3 Qd8 Rb3 bxa4 b5 Bb7 b6 Bc8 Rb5 cxb5 e4 e5 c5 f6 c6 Bc5 dxc5 Nh6 Bb2 Ng8 Bd4 exd4 e5 f5 Bd3 Ne7 Bc2 Ng8 Be4 fxe4 Kd2 Kf7 g4 Kg6 f4 h5 b7 a5 g5 Kf5 g6 d5 e6 e3+ Kd3 h3 c7 e2 e7 h2 e8Q a3 g7 a2 c6 a4 Nc3 a3 Qe1 h4 Nh3 Ra4 Ng5 h3 Ne6 Nd7 b8Q Ngf6 g8N Nh5 Qh4 Ng7 Rb1 h1B Rb4 Qg5 Nd8 Qg1 Qf6+ Kg4 f5 Kf3 Qh4 Bg2 f6 Nc5+ Kd2 d3 f7 d4 f8N Rh6 Nd5 Bf5 c8Q Rh8 Qh2 Bg6 Nfe6 Bh7 Qg5 Kf2 Nec7 Kf3 Qgg4+ Kf2 Qce6 Kf1 Kc1 Ke1 Qge4 d2+ Kc2 d3+ Kc3 Kd1 Qh4 Qf1 Kd4 Qg1+ Ke5 Kc1 Kd6 d1Q Qhg4 Qd2 Qh4 Nb3 Kd7 Nc5+ Kc8 Qdd1 Rb3 Re4 Rb4 Rf4 Kb8 Qd2 Kc8 Nb3 Kb7 Nc5+
n1k5/R1r4B/2Qp1rb1/1R3rKQ/b2q1rnR/R2P1Q1p/2bq1Q1b/q7 w - - 0 1 illegal: No possible last move, all moves rejected
2B1r2q/5p1b/3pQ3/r1Q1n1bB/Q2brNb1/1Bn4p/3r3P/B1k2bQK w - - 0 1 legal: proof: b4 e5 a4 g5 f4 exf4 b5 g4 b6 axb6 Ra2 b5 Ra3 b4 Rf3 gxf3 c4 d5 c5 Ra5 Qc2 Ra6 Qd1 Ra8 g4 Qd7 Qc2 Na6 Bh3 Bd6 Kf2 Ra7 Ba3 Qe7 Bg2 Qg5 Nh3 Qe5 Rc1 Nf6 Qd1 Qg5 Rc4 Ra8 Bc1 Bf8 Ke1 Nb8 Ng1 Ng8 Bf1 Qd8 Qc2 dxc4 Qb3 Nc6 Qd1 Nb8 d4 Qg5 d5 Qh5 d6 Qg5 d7+ Kd8 Nc3 Ke7 Ne4 Qf6 Nd6 cxd6 Bd2 Ke6 Be3 Qd8 Bc1 Ke7 Kf2 Kf6 e4 Kg5 c6 b5 a5 h5 a6 c3 e5 h4 e6 h3 c7 b3 a7 c2 e7 b2 e8Q b1B Bg2 b4 Be3 c1B Qe4 b3 Bd2 b2 Qee2 Nc6 Qc2 Nf6 Qa6 Bg7 Qc5+ Nd5 Qe2 Bh7 Bb4 b1R Qe6 Ne5 Ne2 Rb2 Kg1 f2+ Kh1 f1B Bf3 Re8 Bc3 Rd2 Ba1 Nc3 Bd5 f3 Nf4 f2 Bb3 Qf6 d8Q Bd7 Qb8 Qh6 c8B Bf6 Qec4 Qf8 Qbb4 Qh8 Qe6 Bb2 Nd3 Bd8 Qa4 Be7 Nb4 Kf4 g5 Ke4 g6 Bg5 Nd5+ Kd3 g7 Ke2 Qh6 Bg4 g8Q Ke1 Qe6 Ke2 Bc2 Ke1 Bg6 Ke2 Bh5 Ke1 Qaa5 Kd1 Qa4+ Kc1 Qg7 Rb8 a8B Rb4 Bab7 Re4 Ba8 Bd3 Nf4 f1R+ Qg1 Rfd1 Bd5 Bf1 Bb3 Rd5 Qgf6 Ra5 Qd8 Rd2 Qdb6 Na2 Qa7 Bd4 Qc5+ Nc3
5n1k/1K1B1p1p/7Q/rrbpqb2/6qP/2NpNQn1/1qrQ1q2/1Q1N3N w - - 0 1 legal: proof: d4 g5 b4 a5 f4 gxf4 a4 axb4 d5 c6 d6 Nh6 Ra3 Ng8 Rc3 Qc7 Rd3 Qd8 c4 e5 g4 Bg7 h4 Ra6 c5 Bh6 Be3 Bf8 Rd5 Ra8 Bd4 exd4 Rh3 Ra5 Rc3 cxd5 c6 Ra6 c7 Ra8 Rc6 dxc6 Kf2 b5 e4 d3 d7+ Ke7 g5 c5 a5 c4 e5 b3 g6 b4 e6 Kf6 a6 Kg7 a7 b2 e7 f3 Ke3 c3 Kd4 f2 Kc5 b3 Kb6 c2 e8N+ Kh6 g7 c1R Nh3 Ne7 g8Q Rc2 Qg3 Nf5 Nd6 Qe7 d8Q Qe5 Nc3 b1Q Nde4 b2 Qgf3 Kg7 Qd2 Ng3 Qd6 Bf5 c8Q Nd7+ Kb7 Qd1 Qcb8 b1Q+ Qb6 Qe2 Nd1 Qbb2 Nec3 Bc5 Bg2 f1Q Nhf2 Re8 Nh1 Nf8 Bh3 Kh8 Qd6 Qef2 Q6h6 Q1g1 Qb3 Bb6 Qb4 Rac8 a8N Rc5 Qb3 Ra5 Qb5 Be4 Bd7 Bf5 Qb3 Rc8 Qa2 Rcc5 Qb1 Bd8+ Nb6 Rcb5 Kc6 Bc7 Nc4 Bb6 Nce3 Qgg2 Kb7 Qh3 Qd6 Qg4 Qh6 Bc5+
2Bqn3/1n3P2/Q1p2b1B/1N1B2r1/1RrrN3/1nqq4/P1rb2rk/1K2R3 w - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 h4 fxe4 d3 cxd3 h5 a5 h6 axb4 Qg4 gxh6 Qf5 h5 Qxc8 h4 Kd1 Ra4 g4 Kf7 f4 Kf6 f5 Ke5 g5 b5 f6 h5 g6 c6 f7 d2 Kc2 Kf4 g7 Kg3 Kb2 d1R Nh3 e5 Kc2 b3+ Kb2 e3 Nd2 e2 Nf3 e1B Bd2 e4 Qd7 b4 Qf5 e3 Bc1 e2 Bh6 Nf6 g8B Be7 Bc1 Na6 Rh2 Ne8 Ne5 Nc5 Qe4 Bf6 Ng5 h3 Qb1 h4 Qg6 Nb7 Qe4 Rh5 Rh1 h2 Qb1 h3 Qg6 Bc3+ Kb1 e1Q Bg2 b2 Kc2 b1N Bb2 Nd2 Rf1 h1R Qh7 h2 Bd5 Rg1 Rf4 h1R Qd3+ Kh2 Qa6 Rg2 Nc4 Qe5 Bh7 b3+ Kd3 Rhf1 Bc1 b2 Kc2 Rff2 Nd6 Nb3+ Bd2 Bb4 Nb5 Ba5 Rd4 Rb4 Bf5 b1Q+ Kc3 Qbe4 Kb2 Rc1 Bfe6 Qd3 Bc8 Rf4 Rb1 Rc5 Rd1 Rc2+ Kb1 Qe1 Rc4 Rd4 Ne4 Re5 Bh6 Reg5 Rc1 Ra4 Rd1 Qb4 Rg1 Qc5 Re1 Bd2 Rb4 Qcc3 Rc4 Rb4 Na3 Rb5 Rb4 Rc5 Nb5 Rcc4
2b5/K1Qp4/Pr1r2Bb/b1R3Bb/nb2P1kN/N2Nqn2/1bR5/b1n5 w - - 0 1 legal: proof: d4 e5 b4 c5 f3 cxd4 Ba3 a5 Bc1 axb4 g4 h5 c3 bxc3 e3 e4 fxe4 dxe3 Qd6 hxg4 Qd4 Rh4 Qd1 Rh8 Ke2 Ke7 Kd3 Kf6 Kc4 Kg5 Kb5 f5 a4 g3 h3 f4 a5 f3 a6 g2 h4+ Kg4 h5 g5 h6 c2 h7 e2 Bd2 c1B Bc3 e1B Na3 Nh6 Bg7 Qb6+ Kc4 Bb2 Bd3 Qe3 Kb5 Nc6 Ra2 Beb4 Bd4 Ne5 Kb6 Nf5 Bb5 Ng3 Nb1 Ne2 Ba4 f2 Na3 f1B Bb3 Bh6 Bf7 Nf3 Bc5 Nc1 Qe1 Rb8 Ra1 Be2 Ka7 b5 Qd2 Rb6 Nh3 g1B Ka8 Ba5 Bc4 b4 Ka7 b3 Qc2 Bf2 Qc3 Be1 Be7 Bd2 Qe5 Bdb4 Ra2 Rg8 h8N Rgg6 Rd1 Rgd6 Ng6 Ba1 Rc2 b2 Qc5 b1N Bf7 Nc3 Nhf4 Na4 Nd3 Kh3 Qc4 g4 Ne1 g3 Qc3 g2 Nh4 Ng1 Bg5 Bh5 Qc7 Kg4 Rd5 Nf3 Rdc5 g1B Nb5 Qe2 Nd3 Bgd4 Na3 Qe3 Bg6 Bdb2
QK6/r4B1N/2Bq2n1/1PRb1r1b/1qnr4/n1B3q1/3P1kp1/2Nb1n1R w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 e5 h4 exf4 a4 b5 h5 bxa4 g5 Kd7 Qb3 Be7 g6 hxg6 Qb4 gxh5 Qa3 h4 Qb4 Bf8 Qxf8 h3 Kf2 Ke6 Kf3 Kd5 b4 f5 e3 a5 b5 c5 Qf6 g5 Qb6 h2 Na3 g4+ Kf2 Ke4 Qa6 g3+ Kg2 c3 Rb1 c4 Qb7+ Nc6 Qg7 c2 Qe7+ Ne5 Qd7 c3 Qh7 f3+ Kh3 f2 Kg2 Nc4 Bb2 c1R Qd7 f4 Qc7 c2 Qb8 Ne7 Qb6 Rh4 Qc7 Ng6 Qh7 Bg4 Be5 Qd6 Qh6 Bh5 Bd4 Rf8 Qg7 Rf5 Be2 f1N Rb3 Rg4 Qf8 f3+ Kh3 f2 Nb1 a3 Bc3 a2 Nf3 a1Q Qg8 a4 Qa8+ Qd5 Bd1 a3 Ng5+ Kd3 e4 a2 e5 Rd4 e6 Qd6 e7 Qb2 e8B a1N Bd7 Qba3 Bf3 Qab4 Bd5 Ke2 Nh7 Ke1 B7c6 Ke2 Rg1 h1B Bf7 Bd5 Rh1 g2 Rb2 Ng3 Ra2 f1B Ra7 Kf2 Rc7 Bfe2 Rc8 Bd1 Rc7 Nf4+ Kh4 Rf6 Kg5 Ng6 Rc8 Nf1 Rc7 Re6 Kf5 Qg3 Rc8 Re5+ Kf6 Bd5f3 Rc7 Rf5+ Ke6 Bd5+ Kd7 Nb3 Kc8 Nba5 Ba1 Na3 Kb8 N5c4 Nc3 Rb1 Ng5 c1Q Nh7 Rb2 Ne2 Rc2 Bc3 Qcb1 Qb7 Qbd6 Qa8 Qbb4 Nc1 Qb3 Bd7 Nb6 Bb2 Qbb4 Ba1 Rc6 Bc3 Nbc4 Ka7 Rb6 Rc5 Rc6 Bde8 Rc8 Bc6 Rc7+ Kb8 Ra7+
Q1qkrBnN/1nr3Pn/b3n2p/1Pb2N2/5r1r/3rKb2/3R1NB1/6R1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 h4 exf4 c4 g5 b4 gxh4 b6 axb6 c5 bxc5 b5 c4 Be3 c3 Bd2 Qc7 Bc1 Qd8 Kf2 f5 e4 d5 g4 c2 e5 h6 g5 d3 e6 d2 e7 h3 g6 d4 g7 f3 Ra4 h2 Ra3 f4 Bc4 d3 Qf1 d1R Be3 c1N Ba2 d2 Bd5 Nb3 Qc4 Ba6 Qd4 Ra7 Qa4 Nc6 Nh3 Ncd4 Ng1 Rc7 Nc3 Nc5 Ne4 Nb7 Bc4 Ne6 Ba7 Qc8 Ba2 Kd7 e8N Kd8 Ne2 Be7 Re3 Bc5 Rf1 h1R Bd5 Rh4 Kg1 f2+ Kg2 Rh7 Kf3 Rh8 Rg1 f1N Nd4 Ng3 Nf5 Nh5 N8d6 Nhf6 Nf2 Nh7 Ke4 f3+ Kd3 Rb1 Re2 d1B Rd2 Rbb4 Qa5 Rbd4+ Ke3 Ne7 Qa4 Re8 Qa2 Ng8 Nf7+ Kd7 Nh8 Kd8 Bb6 Be2 Ba5 Bd1 Bb4 Be2 Nh1 f2 Bg2 f1R Qa4 Rff4 Nf2 Bh5 Qa2 Bf3 Qd5+ Nd6 Qa8 Nb7 Ba3 Bb6 Bd6 Bc5 Bf8 Rd3+
KR6/1N3Qp1/2r1R1P1/1k2B1r1/npb2rP1/3N1B1R/3r2q1/q1bn1br1 w - - 0 1 legal: proof: d4 a5 b4 axb4 c4 c5 g4 e5 a3 bxa3 f3 Qf6 f4 exf4 d5 Qa6 d6 Qxc4 h3 Qd5 h4 Qg5 hxg5 c4 Rh6 c3 Rh4 Bxd6 Rh1 Bf8 Kf2 f5 Kf3 d5 e4 Kd7 g6 Kc6 e5 h5 e6 b5 e7 h4 e8R h3 Bg2 a2 Rh2 d4 Nd2 c2 Rb1 a1Q Re7 d3 Rd7 Nh6 Ra7 Na6 Rb2 Ba3 Rb4 Rd8 Rb3 b4 Ne2 Kb5 Ng1 Be6 Rh1 h2 Qf1 Nc5 Bb2 c1R Nh3 Bc4 Be5 Na4 Rd7 Ra5 Nb1 d2 Rg1 h1Q Nf2 d1R Nd3 Rc2 Re7 Bc1 Nd2 Rd6 Re6 Rc6 Ne4 Rcd2 Qf2 Qh2 Rh1 Rg1 Nec5 Qh3+ Qg3 Qh2 Nb7 Qh3 Bf1 Qh2 Be2 Qh3 Kf2 f3 Ke3 f4+ Ke4 f2 Bf3 f1R Qf2 Qg2 Rh2 Nf5 Rh8 Ne3 Rb8 Nd1 Ra3 Ba2 Rb3 Qc3 Kd5 Qa1 Be4 f3 Qa7 f2 Bf3 Rc4 Kd6 Rf4 Kc7 Re1 Rc3 f1B Nbc5+ Nb6 Bd6 Ree2 Kb7 Rf2 Ne1 Rde2 Bd5 Rc2 Rh3 Rfd2 Ned3 Na4 Bf3 Kc4 Ka8 Rb5 Qf7 Ra5+ Na6 Rg5 Nac5 Rc3 Nb7 Kb5 Bc7 Rc6 Be5 Bc4
1R1B4/Nr3n2/1r3q2/2n1P3/p1B1p1qQ/2R2Pn1/2qrNknK/R1nb4 w - - 0 1 legal: proof: d4 a5 b4 c5 a4 cxd4 h4 b5 h5 bxa4 h6 a3 Nh3 a4 Bd2 gxh6 Bg5 h5 Ra2 h4 Ra1 Bh6 Bc1 Bf4 Ng1 Bc7 e4 f5 Qd3 e5 Qe3 d3 Qd4 Ba5 bxa5 exd4 e5 Qg5 Rh3 Nh6 Re3 Ng8 Re4 fxe4 Bb2 Qf6 Kd2 Ba6 Be2 Nh6 Nc3 Kd8 Nh3 Ke7 Rh1 Rc8 Ke1 Rh8 Bf1 Ke8 Ng1 Ng8 Bc1 Qd8 Nb1 Bc8 g4 Ke7 c4 Ke6 g5 Kf5 g6 Kg4 g7 h5 a6 d5 a7 a2 c5 a1N c6 d2+ Ke2 d1N c7 d3+ Ke1 h3 Na3 d2+ Ke2 h4 Nb1 d4 Bb2 h2 Ba3 h3 Bb4 Nb3 Bc3 Qf6 Ba5 Na6 Nc3 Rh6 Bb6 Ne3 Nf3 d1R Na2 Rd2+ Ke1 d3 Bd4 Nc1 Nc3 Nc5 Ng1 Rb8 a8R Rb7 Nge2 Kf3 Nb5 Bg4 c8R Bh5 Rg1 h1Q Na7 h2 Rab8 Qg2 Bc3 h1N Ba5 Qh3 Bd8 Ng3 Rc7 Rg6 Rc6 Nh6 g8Q Qhe6 Qh7 Qg4 Qe7 Nf7 Rc7 Qh8 Qh4 Rgb6 Rc6 Qf6 Rcc8 Ne6 Rc3 Nc5 Bh3 Qgg6 Be6 Qg4 Rf1 Ngf5 Rh1 Ng2+ Kf1 Ng3+ Kg1 Ra2 Rc2 d2 Bc4 d1Q+ Kh2 Qd3 Rc3 Rd2 Nf4 N1b3 Ra1 Nc1 Ne6 Ke2 Nf4+ Ke1 Ne2 Qc2 Qg5 Qgf5 Qh6 Bf3 Qh4 Qg4 Nd4 Be2 f3 Bd1 Ne2 Kf2
Nn3B2/n3p2Q/b6P/1p3R1q/3N3B/r1bpr3/2qpn1Pp/kN1R1K2 w - - 0 1 legal: proof: b4 f5 d4 c5 e4 cxd4 exf5 a5 Qd3 axb4 Qf3 Nh6 Qd1 Ng8 h4 g5 f4 gxf4 Qd3 h6 Be2 h5 Bg4 hxg4 Qh3 gxh3 a4 Kf7 c4 Kf6 h5 Ke5 f6 d5 c5 b5 a5 b3 c6 b2 f7 f3 a6 d3 a7 Kd4 c7 d2+ Kf1 h2 Ra3 f2 Ra2 Ba6 c8Q Nc6 Ke2 f1N Ra3 Nf6 Qe6 Bg7 f8B Nd7 Ra5 Qe8 Qh6 Ng3+ Kf2 Ne2 Kf1 Ndb8 Ra1 Kc4 Na3+ Kc3 Qh7 b1Q Nf3 Qc2 Nb1+ Kb3 Rg1 d4 Bb2 d3 Bf6 Qf7 Nd4+ Kb2 Ra4 Qd5 Rb4+ Ka1 Bh4 Rg8 h6 Qh5 Rh1 Bh8 Rc4 Rg3 Rc5 Re3 Rf5 Nd7 Ne6 Bc3 Rg1 Rb8 a8N Na7 Rh1 Rd8 Nd4 Nb8 Kf2 Rc8 Rd1 Rc4 Kf1 Ra4 Rc1 Ra5 Rd1 Ra3
3NbRr1/1KRbn3/1P3n2/1nQ2nB1/1r6/P3b1q1/1B2kn1n/1nq1N1rR w - - 0 1 legal: proof: c4 b5 g4 bxc4 f4 c5 b4 h5 d4 hxg4 b5 cxd4 b6 e5 Bg2 exf4 Bc6 a6 Bb5 axb5 Kf2 Ke7 h4 Kf6 e4 Ke5 h5 d5 a3 g5 h6 f5 h7 b4 Rh5 c3 Qe2 g3+ Kf3 g4+ Kg2 d3 Qf2 f3+ Kh1 d4 Nh3 c2 Rg5 g2+ Kh2 g1N Kg3 b3 Rh5 b2 Nd2 Bc5 Nf1 d2 Qg2 d1N Nd2 f2 Ng5 f1N+ Kh4 Kf4 e5 Ke3 e6 g3 e7 d3 e8R+ Ne7 Nh3 f4 Kg5 f3 Kf6 f2 Ke5 Ne2 Rg8 Nd4 Qb7 g2 Ng1 Nc3 Ndf3+ d2 Rg6 Nh2 Rhh6 f1B Ng5 Ndf5 Ne6 Qd3 Qc7 Rg8 h8B Ra4 Bf6 Rb4 Nd8 Nd7+ Ke6 Kf2 Bg5 Qg3 Nf3 Be3 Qc5 d1N Rb1 Be2 Rf6 Bb5 Rf8 Ke2 Rhf6 Nf2 R6f7 Ned5 Re7 N7f6+ Rd7 Nde7 Ra1 b1N Bb2 Nd2 Rh1 g1R Ne1 c1Q Rf7 Qh4 Rf8 Ndb1 Ke5 Ba4 Rb7 Be8 Rc7 Ng3 Kd6 Bcd7 Ra7 Ngf5+ Kc7 Qg4 Kb8 Qf3 Rc7 Qg3 Kb7 Nb5
3b2B1/3Rqn2/2r5/Qr3b1q/N3K1Nb/nr2N2R/k1P1B1P1/rbrb1n2 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kf2 Ke7 Kf3 Kd6 e4 Kc5 e5 Kb4 a5 f5 e6 b5 e7 d5 e8N h5 a6 d3 a7 h3 Nf6 d2 Nh7 d4 Ne2 h2 Nec3 d3 Ne4 a2 Qe1 h4 Nc5 h3 Ng5 Rh6 Qe7 d1Q+ Qe2 d2 Nc3 Ka3 Nf7 b4 Rb1 a1B Ne6 b3 Nd4 b2 Nc6 Na6 Rc1 Rb8 a8B Nc7 Na2 Rb3+ Nc3 Be7 Nb4 Bh4 Ne5 Nb5 Rg1 h1R Nf7 h2 Bd5 Rc6 Bc4 Nh6 Ne5 Qd7 Bg8 Nf7 Bh7 Qc7 Na2 Be6 Ng6 Bd8 Nh8 Qe7 Kf2 f3 Kg3 f2 Bg8 f4+ Kf3 b1B Ke4 f3 Nb4 Ba2 Ncd5 Bf6 Ra1 Bh4 Nc3 Kb2 Rc1 Na3 Nbd5 Rb5 Qe3 Qe2 Re1 Qd1 Bc4 f1R Qa7 f2 Ng6 Qh5 Re3 Ra1 Be2 Bb1 Na4+ Ka2 Rd1 Rf1 Qb6 h1R Ne5 Rh3 Qa5 Re1 Rf3 f1N Ng4 Rg3 Rf6 Rgb3 Rf3 Ne3 Rh3 Rg1 Rf1 Rh1 Rf5 Rc1 Rff3 Nf1 Rd3 d1B Nde3 Qf6 Rd2 Qe7 Rd7 Bf5+
b1n1k3/2q3n1/r2bN3/P4bP1/2Nr3K/Br1br1nR/2RrQB2/4Rq1b w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Qd2 f3 Qf4 gxf4 g5 cxd6 Bg2 d5 Bh3 d4 Bg4 hxg4 Kf2 b5 c4 f5 e4 d5 h4 g3+ Kf1 f2 Kg2 f1B+ Kf3 b3 a4 d3 c5 d2 a5 d1R h5 g2 e5 b4 e6 b2 e7 b3 c6 d4 h6 d3 c7 d2 h7 Nf6 Rh2 Bd3 Rh3 Nh5 Rh1 Ra6 Rh2 Nc6 Rh3 Na7 Nc3 b1B Na2 b2 Rh4 Ng7 Rh3 Bb7+ Kf2 f3 Kg3 f4+ Kg4 f2 c8R f1N Rc2 f3 Rc7 f2 Nf3 g1Q+ Rg3 Nc8 Nb4 Ba8 Rc2 Qc7 Nc6 Be4 Nfe5 Bh1 Nd8 Qg2 Rc6 Bf5+ Kh4 b1R Ba3 Rb3 Rh3 Ng3 Rc2 f1B Ne6 B1d3 Nc4 Qf1 Rb1 Rg8 h8B Re1 Rbc1 d1R Ra1 Re3 Rb1 N7h5 Bd4 Rd2 Re1 Rg6 Bb6 Ng7 Bd4 Ree2 Bf2 Re3 Nf4 Rgd6 Ne6 Kf7 Nf4 Rd4 e8Q+ Kg8 Qe4 Kf7 Ne6 Bd6 Qg4 Ke7 Qe4 Ke8 Qg4 Bae4 Qe2 Ba8+
1k2N1bb/n1Nn1b2/2B4P/1q1QR1PR/r3r3/1nKbb2b/1Bq2bn1/1B6 w - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 Qg4 hxg4 e6 fxe6 Ba3 e5 Bc1 e4 Kd2 d5 a4 Kd7 c4 Kc7 h4 e5 a5 b5 a6 e3+ Kd3 e2 a7 e1B h5 f3 h6 e4+ Kc2 d3+ Kb3 d4 c5 d2 c6 d1B+ Kb2 d3 Ra6 g3 Bh3 g2 Nd2 e3 Nb1 e2 Ra2 d2 Bd7 b3 Na3 f2 Rh3 f1Q Rh5 b4 Rh1 Nf6 Nc4 Bg7 Be6 Bf2 Nd6 e1N Ra6 Qb5 Nf3 g1B Bg4 Ng2 Rh3 Nfd7+ Ne5 Re8 Be2 Bh8 Bd3 Bh5 Bg6 d1B Be4 Bf7 Kb1 b2 Ng4 Bdb3 Nf6 Bbd5 Kc2 b1B+ Kd2 b3 Bb2 Bd3 Rh5 Bg8 Rb6 Bdf7 Kc3 Qe7 Bd5 Qe4 Ra6 Qg6 Ra5 Be3 Be4 Bgf2 Bd5 Re4 Ne8+ Kb6 c7 Nc6 Ng7 Kb7 Nfe8 Ne5 Ne6 Qh7 N6g7 Bh3 Ne6 Qf5 Ba3 b2 c8B+ Kb6 Bd7 Kb7 N6c7 Qg6 Bf5 Nd7+ Nf6 Ra4 Bde4 Re8 Bf3 Ree4 a8Q+ Kb6 Qd8 Na7 Qa8 Qh7 Qd8 Kb7 Bg6 Ne5 Qd5+ Kb8 Nfe8 Nd7+ Qd4 Qb7 Re5 Qa6 Qd5 b1N+ Kb3 Nd2+ Kc3 Qb5 Bb2 Nb3 Bf5 Bc4 Bg6 Rg4 Bb1 Bd3 Qc5 Qf5 Bc6 Rge4 Qc4 Qf3 Qc5 Qd1 Qd5 Qc2+
4q1bn/3P1N1k/2Qr1nnP/qB3r2/2bNn3/1qR4K/b3B1B1/bR1n3q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 c5 e4 f5 a4 Kf7 d4 Kg6 d5 b5 e5 g2 Kf2 c3 Kg3 c4 h5+ Kh7 h6 g5 a5 f4+ Kh2 b3 a6 b4 a7 c2 d6 c1Q e6 c3 e7 b2 e8B c2 Ra3 b3 Bd7 g3+ Kh3 f3 Kg4 f2 Qd4 Bg7 Qd2 Qe8 Be2 f1B Qd5 Nc6 Qc5 Ne5+ Kh3 g4+ Kh4 Nf6 Beb5 Rf8 Nd2 b1B Qc6 b2 Rd3 Qe1 Rc3 c1Q Be6 Bc4 Qa6 Qcd1 Bed7 Bba2 Bf5+ Ng6+ Kg5 b1N Bfd7 Qb3 Rh4 Nh8 Nh3 g1Q Rd3 g2 Re3 g3 Qb6 Nc3 Qc7 Qh1 Re2 g1N Re3 g2 Qc6 Nge2 Bg4 g1N Nf3 Nf4 Nd4 Nfg6 Be2 B8e6 d7 Nd1 Rc3 Bg8 Re4 Rc8 a8B Nf3+ Kf5 Nd2 Re6 Nh5+ Kg4 Ne4 Rf6 Qd2 Rf1 Rf5 Rg1 Nb2 Rb1 Nd1 Nf4 Rb8 Nd3 Rb6 Ne5 Qde1 Nf7 Be5 Qc7 Rd6 Qc6 Qd2 Rh3 Qa5 Rc3 Bf4 Bb7 Bc1 Ba8 Bb2 Bb7 Ba1 Ba8 Qe1 Kh3 Nhf6 Qc5 Ng3 Bg2 Nge4 Qc6 Qh1+
2q2N2/kB1rQ2P/B2q1n1N/rbR1b3/1N3P1n/1bq2R2/q6p/n1Kq3r w - - 0 1 illegal: No possible last move, all moves rejected
b5R1/5rQ1/2Nn1q1r/r1PbRq1N/K7/n2r1B2/R1Pp1br1/2kbb2B w - - 0 1 illegal: Other
rrRn1KB1/8/b1B3RN/1rNpq3/5b1P/3rQ1P1/2qbnrq1/k4q1N w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Be3 h5 Bf2 h4 Kd2 g3 Qc1 gxf2 Qe1 Be7 Qd1 Bf8 g3 h3 Qc1 Qb6 Kd1 Qd8 Qa3 Nc6 Qf3 Nb8 Qg2 hxg2 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 d5+ Kb5 f5 c4 f3 a4 f4 e4 d3 a5 Kd4 e5 d2 a6 d1R e6 b3 c5 b2 a7 Nf6 c6 Rd3 c7 Nh5 e7 Nc6 e8Q Bb4 Qg6 Qg5 Nh3 g1B Bg2 f1R Ra3 f2 Qf7 f3 Nd2 b1R Qf8 Nd8 Ra6 Kc3 Qc5+ Kb2 Ne4 Qe5 Qe3 Bd2 Kc5 b5 Rg6 Ba6 c8N b4 Ne7 b3 Ng8 Ka1 Nh6 b2 Rh2 Rb8 a8B Nf4 Bc6 Ne2 Bh1 Rfd1 Bg2 f1Q Nhf2 Ra8 Bh3 Qg2 Be6 Rf1 Nh1 Bf2 Qd4 Bfe3 Bg8 Bf4 Qe3 f2 Re6 Rbe1 Rf6 b1Q Rg6 Qh3 Rg2 Qa2 Rg1 Rb1 Rg2 Rb2 Rg1 Rfb1 Rc1 f1Q Ng4 Ng1 Nh6 Rh7 Qf3 Rf7 Bb5 Qhg2 Qe3 Bg5 Bd7 Rf2 Rc3 Qd4+ Kd6 Rbb8 Rc8 Bf4+ Ke7 R1b5 Kf8 Ne2 Bc6 Qe5 Nc5 Qc2
1q1qnR1r/B5n1/1P3B2/K1N1qrq1/PQ6/rR4qb/R5p1/b1nNr1k1 w - - 0 1 legal: proof: c4 b5 g4 bxc4 f4 c5 b4 h5 d4 hxg4 b5 cxd4 b6 e5 Bg2 exf4 Bc6 a6 Bb5 axb5 Kd2 Ke7 e4 Ke6 h4 Ke5 a3 d5 h5 f5 h6 g5 h7 g3 Rh2 f3 Ne2 c3+ Kc2 f2 Kb3 f1Q Rg2 d3 Nd4 b4 Be3 c2 Rg1 c1N+ Kb2 b3 Kc3 g2 Qc2 g4 Ra2 b2 Qf2 d2 Bg5 d1R Qc2 f4 Nb3 f3 Be3 f2 Bc5 Kf4 Kb4 Kf3 e5 g3 e6 d4 e7 d3 e8R d2 Re5 Qe2 Re7 f1R Ra1 Na6+ Ka5 Nf6 Re5 Ne8 Rd5 Qe5 Ra2 Bg7 Rh1 g1Q Qc3+ Kg2 Rd6 Rde1 Rhh6 d1Q Qd4 Bh3 Rdf6 Rf5 Nc3 Qdb8 Qb4 Qdd8 Rf8 Qf2 Rg6 b1Q Nd1 Kg1 Rg4 g2 Rg3 Qbe4 Re3 Qg4 a4 Qgg5 Rd3 Ra7 Rg3 Raf7 Rc3 Nac7 Rf3 Nd5 Bd6 Ne7+ Nc5 Qfg3 Rb3 Rf3 Bc7 Nf5 Bd6 Bf6 Bc7 Nfg7 Bd6 Qb7 Bb8 Rd3 Ba7 Qbb8 Rbb2 Ra3 Rb3 Qee3 Rb1 Ba1 Rb3 Rg8 h8B Rf5 Qc3 Qee5 Qb4 Ne6 Bg7 Rh8 Bf6 N6g7
4B2N/1KP2q1Q/r1nPB3/q1nRq3/p1Rq1q2/kn1b3r/1R1bb3/3N1n2 w - - 0 1 legal: proof: b4 b5 a4 bxa4 c4 c5 f4 cxb4 h4 e5 c5 exf4 c6 g5 Bb2 gxh4 Bd4 d6 Bc5 dxc5 Kf2 a3 Kf3 Ke7 Ke4 Kd6 d4 h5 g4 f5+ Kd3 a5 Kc4 a2 Kb5 c4 e4 b3 c7 c3 Kb6 h3 g5 h2 d5 f3 g6 a4 g7 b2 Ne2 f2 Qd2 f4 Qc2 h4 Nd2 b1B Qb2 c2 Ng1 c1N Qd4 h3 Bc4 f1Q Bd3 f3 Ne2 f2 Ng3 Ba6 Nf3 Nb3 Rg1 h1Q Bc4 h2 Ng5 Nf6 g8R Qf3 Qb2 h1Q Rg2 Nc6 Ne2 Rh3 Qc2 Bh6 Nc3 Qh5 Re8 Qh2 Re5 Bb5 Rg4 Nd7+ Kb7 Kc5 Nd1 Kb4 Nf7 Ra6 Nh8 Ka3 d6 Qdh4 Rf5 Bd2 e5 Q2g3 Bd5 Be2 e6 Qc3 e7 Qf7 e8B Qa5 Qe4 Bbd3 Rb1 a1Q Be6 Qhh5 Rc5 Qhe5 Rd5 Q1c3 Rb2 Ndc5+ Kc8 Qc4 Qh7 Qg1 Re4 f1N Rf4 Qce4 Rg4 Qef3 Re4 Q3f4 Rc4 Nd8 Kb8 Qgf2 Kc8 Q2d4 Kb8 Nc6+ Kc8 Nd7 Kb7 Ndc5+
3rn1n1/nP1b3p/1n3brk/n1QNB2q/1B1qNK1r/1RR2P2/5q2/1r1B4 w - - 0 1 legal: proof: c4 d5 g4 dxc4 e4 f5 h4 fxe4 a4 b5 h5 bxa4 h6 gxh6 g5 hxg5 Ra3 g4 Ra1 g3 Ke2 Kf7 Ke3 Kg7 b4 a5 d4 c5 d5 e5 f3 g2 b5 a3 b6 a4 b7 a2 d6 c3 d7 c4 Rh2 c2 Qd4 a3 Rh6 c3 Bb2 c1N Rb6 c2 Qd3 Ra4 Qb5 Nc6 Bc3 Qg5+ Kf2 e3+ Ke1 e2 Kf2 e1R d8B Rh4 Bf6+ Kh6 Nd2 e4 Qe5 Be7 Nb3 Bd7 Qc5 Na7 Qd4 Qh5 Kg3 e3 Be5+ Bf6 Bc7 e2 Qc5 Nd3 Nd4 c1N Qa5 Nf2 Re6 Ng4 Nc2 Nd3 Qd5 Rb1 Re3 Nf4 Qf5 Nd5 Nb4 Nb6 Nd5 e1Q+ Kf4 Qf2 Nh3 g1R B7e5 Rc1 Bb5 Ne7 Bd2 Rd8 Ba4 Ng8 Qd3 Bg5+ Ke4 Rb1 Qc3 Be7 Ng5 N4f6+ Kd3 Rgg4 Qc5 Ne8 Bb4 Bf6 Ne4 Rg6 Bc2 Rbg1 Rc1 a1N Rb1 a2 Ba4 Rc1 Bd1 Nb3 Rb2 Na5 Rb3 Rb1 Kd4 Qc2 Red3 a1Q+ Ke3 Rh2 Kf4 Qd4 Re3 Qf2 Rec3 Rh4#
r2q4/2kn1Nr1/KR1N2b1/2P5/3Bn2P/1n1n1bpR/1b2Rb2/nBnbQ3 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kd2 g5 Kd3 d5 c4 Kd7 e4 f5 h4 b5 c5 f3 e5 b4 e6+ Kc7 e7 a2 e8R f4 Bh3 b3 Re2 f2 Na3 f1N Nf3 g3 Rhh2 b2 Rhg2 b1B+ Qc2 g4 Ref2 Nd2 Nh2 f3 Nf1 Bb7 Re2 f2 Ne3 f1N Re1 Nb3 Nd1 Nd7 Nb2 Ngf6 Rh2 g2 Rh1 g1B Rh2 g3 Bg4 Bf2 Bf3 Rh7 Be2 Bg7 Nbc4 Nfd2 Bb2 Nfe4 Ne5 Bh8 Bh5 Rg7 Bg6 Bc6 Rh3 Bb7 Nac4 Bc6 Ke2 d3+ Kd1 d4 Nd6 Bd5 Nef7 Nc1 Re2 Ndb3 Qc3 d2 Bf5 Bd3 Rb1 a1N Bg6 Nef6 Bh7 Bg6 Qe3 Bf3 Bc3 Na5 Rb6 Ne4 Bb2 Na1b3 Kc2 d1N Bc3 Nb2 Qd2 Nbd3 Qe1 Nb4+ Kb2 d3 Ka3 d2 Ka4 d1B Kb5 Na1 Bd4 N5b3 Be5 Bgh5 Bf5 Bg6 Bd4 Ng5 Bb1 Ne4 Ba2 Nbd3 Bb1 Rg8 Be3 Bb2 Bd4 Rc8 Ka6 Rg7 Nb7 Rb8 Nbd6 Ra8+
qr1rB3/Rq2pPRq/5r2/nr2Q3/6b1/bN2q1b1/KP3NB1/1B3nkn w - - 0 1 legal: proof: c4 c5 a4 f5 e4 fxe4 h4 b5 d4 bxa4 h5 cxd4 h6 gxh6 Bg5 h5 Bd2 h4 Bc3 dxc3 g4 Kf7 f4 Kf6 g5+ Kf5 c5 h5 c6 a5 c7 d5 g6 d4 g7 c2 Kd2 c1Q+ Ke2 Kg4 f5 Kg3 f6 a3 f7 a4 Qd3+ e3 Qd2 a2 Kd3 h3 Qc3 Kf2 Kc4 h4 Kb4 h2 Ka3 e2 Qb4 e1B Nd2 d3 Nb3 h3 Nd2 Rh5 Nb3 d2 Nd4 d1R Rb1 Nh6 g8B Qd7 Nc2 Nf5 Qh4+ Ng3 Qd4+ Qe3+ Bd3 Rb5 Qd6 Bh6 Ra1 Nf1 Rb1 Nc6 Qg6 Bf4 Qe4 Bg3 Qb4 Rab8 Nd4 Na5 Nb3 Qf5 Qc3 Qh7 Bf5 Rd8 Be4 Bg4 Qe5 Bc3 Rc1 Bd4 Rc4 Bc5+ Rb4 Bd6 c8B Bc5 Bb1 Kg2 Bd7 a1R+ Ba2 Rd1 Be8 R1d6 Bb1 Rf6 Ka2 a3 Rc4 Bd6 Rc7 Bb4 Ra7 Kf2 Ne2 Bd6 Rg1 h1Q Nc3 Qb7 Be4 h2 Bg2 h1N Nd1+ Ke1 Nf2 Bc8 Qh5 Bgf4 Bd5 Qh6 Bh7 Nc6 Bb1 Qh7 Rg7 Bg3 Nd1 Bg4 Ka1 Bb4 Qe5 Ke2 Nc3+ Kf2 Ra6 Kg1 Nd1 Bd6 Nf2 Bc5 Bd3 Bd6 Kb1 Bb4 Bg2 a2+ Kc2 a1Q Bg6 Qa5 Kb1 Ba3 Ka2 Qa4 Ra8 Qaa6 B6e4 Na5 Bb1 Qbe4 Ra7 Qa8 Nd3 Qab6 Nf2 Qbb7
N2Nrkr1/1pBq2b1/P2RBq1N/K2q1nP1/1r6/8/2R1b1n1/b1n2rQq w - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 h4 g5 b5 gxh4 b6 axb6 c5 bxc5 Qc2 c4 Qd1 c3 g4 f5 a4 h5 e4 d5 g5 c2 Kd2 h3 e5 h4 e6 h2 a5 d3 Kc3 f3 e7 d2 Kb4 h3 a6 f4 Ka4 d4 Ra2 d3 Qe2 d1R Bd2 c1B Bc3 f2 Bd2 f3 Kb4 Qd7 Ra1 Bb2 Ra2 Bfg7 Bf4 d2 Bg2 f1R Bg3 f2 Ra5 Nh6 Bc7 Rg8 Rd5 Nf5 Nc3 Ba1 Nf3 Rb1+ Ka5 d1N Rd6 Rb4 Na2 Nde3 Nd4 Kf7 e8N Kf8 Rg1 h1Q Bd5 h2 Be6 Qd5+ Qb5 h1Q Rg2 Qe5 Rh2 Ng2 Qc5 Qe4 Qc1 Qd5+ Qc5 Rb2 Nb4 Nc6+ Kb6 Ne5 Ka5 Rb8 Nbc6 Nd3 Nd8 Rbb1 Rh5 Nc1 Rh2 Nh6 Nf5 Rb4 Ne3 Nf5 Ng4 Rd1 Nh6 f1Q Bb6 Qff3 Nc7 Rf1 Na8 Qc3 Bc7 Qf6 Rb6+ Qde7 Rc6 Bd7 Rd6 Bb5 Qg1 Qd7 Rh4 Rc8 Rc4 Rb8 Rc2 Rc8 Nc6 Re8 Nd8 Be2+
4RR1q/1Nnn3P/K1b1QBr1/B3pNb1/3bnB2/2r1r3/2b1P2r/k2rr3 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 a3 bxa3 g5 f4 g6 f3 Bg2 fxg2 Nf3 hxg6 Ng1 g5 Qc2 g4 Qb3 Rh6 Qd1 Rh8 h4 Kf7 d4 Ke6 Kd2 Kd5 Kc3 e5 f4 c5 f5 b5 f6 g5 h5 a2 h6 b4+ Kb2 b3 Kc3 b2 f7 g3 Qf1 g4 Bd2 Ne7 Nh3 g1B Ng5 g2 Qc1 g3 Rh3 Bd7 Na3 b1B Rh5 Bc6 Qb2 Nd7 Qb5 Bc2 Rf1 a1N Qb4 Nb3 Be1 Nd2 Nf3 Ne4+ Kb2 c3+ Ka2 c4 Nh4 Rb8 Qb2 Rb3 Qb1 Bf2 Qd1 g1R Nf5 g2 Nb5 Be3 Rf3 Bg5 Nbd6 Rh1 Qb1 g1R Nb7 Rh2 h7 Rg8 Rh6 Rg6 Bg3 Rd1 Bf4 Bd3 Qc1 c2 Qb2 Rc3 Qb3 c1R Ka3 Bc2 Kb4 Re3 Qa2 Qc8 Ka5 Re1 Rf1 Rcd1 Ka6 Qb8 Qb3 Qd8 Qb6 c3 Rf3 Kc4 d5 Qc8 d6 Nd5 Rf2 Bfe7 f8B Qe8 Bg7 Qh8 Bf6 Nc7+ Ka7 Bd8 Qa6+ Kb3 Qb6+ Nb5+ Ka6 Kb2 Rf3 Ka1 Rf2 Nf8 d7 Be7 d8B Nd7 Rf3 Bc5 Rf1 Bd4 Rf2 Bd5 Qe6 Bc6 Rf3 Ba4 Bc7 c2 Ba5 c1R Rf2 Rcc3 Rf1 Rg8 Rg6 Bb3 Rg7 Ba4 Re7 Rg6 Re8 Bc2 Ng7 Ra3 Bd8 Rad3 Bg3 Rg2 Rff8 Rh2 Bf4 Rb3 Bf6 Rbc3 Nf5 Nc7+
8/1QNBp2b/2q2B2/2bbRbR1/1PnnNbPr/5b2/4nBnr/4rk1K w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 Kf7 c4 Kf6 b4 Ke5 c5 a5 c6 d5 f3 h5 Kf2 h3 c7 h2 Kg2 e3 f4+ Ke4 f5 h4 f6 a3 f7 a4 Nh3 a2 Ba6 d3 Qd2 d4 Bb7+ Qd5 Qb2 e2 Nf4 e1N+ Kf1 Kf3 Qd2 a3 Rg1 h1B Nc3 h3 Nb1 h2 Nc3 Nh6 Nh3 Bf5 c8Q Ng2 Qb2 d2 Bc6 d1B Rb1 a1B Bg5 d3 Qe8 a2 Ba4 d2 Nb5 Qc6 Qd7 Bdc2 Qd6 d1B Qc7 Nd7 Qf6 Bd4 Rc1 a1R Qcd6 Bc5 Bd2 Ne5 Nf2 Nc4 Ne4 Rd8 Qde5 Rd3 Be1 Ke3 Nc7 Bf3 Qg3 Bh7 Qfd6 Nf5 Qd7 Bh6 f8B Nd4 Bg7 Bf4 Bf6 Bf5 Qc8 Rh4 Qb7 Bb1 Ng5 Rb3 Bf2+ Kd2 Re1 Bh7 Re5 Bbf5+ Be1+ Kd1 Bb5 Bd5 Ne4 Re3 Qf2 Raa3 Qa2 Re2 Bf2 Rah3 Bg3 Re1+ Kf2 Nge3 Rf1 Bf3 Qb2 h1N+ Kg1 Ng2 Bf2 Qe6 Bd7 Qc6 Qa3 Ke2 Qc1 Bh6 Qf4 Bg5 Qh2 Ng3 Nd6+ Ne4 Kh1 Bf4 Be3 Nc3 Ne4 Rd1 Bf2 Ra1 Rc1 Rb1 Be1 Kf1 Rc2 Rd1 Bf2 Nce2 Ra2 Rc1 Ra8 Ra1 Rg8 Re1 Rg5 Rxh2#
Br1b1bBR/2N2b1N/2nr3n/1p1q2Pn/1P1r4/K2k4/B2r1nR1/bnQ5 w - - 0 1 legal: proof: c4 g5 f4 e5 h4 exf4 d4 gxh4 a4 c5 a5 cxd4 a6 Qa5+ Bd2 Qxa6 Bb4 Qa2 Bc3 dxc3 e4 Ke7 g4 Kf6 b4 Ke5 c5 h5 c6 a5 c7 b5 Bg2 d5 Rh2 f5 Qd3 h3 Kd1 h4 Kc1 c2 Qb3 Kd4 e5 a4 e6 f3 e7 f2 e8B f1R+ Kd2 f4 Bg6 a3 Bh7 f3 Nc3 f2 Nb1 Rd1+ Ke2 f1N Bf5 c1B+ Bc2 Nc6 Qf3 Be6 c8B Bg5 Bb7 Bf7 Qg3 Rh6 Bc8 Rd6 Qe1 Rb8 Bf3 Bd8 g5 Nh6 Rg2 h2 Be6 h1R Nh3 Rh2 Nf4 h3 Ng6 Qb3 Bd3 a2 Nc3 Qc4 Rb1 a1B Be4 Qb3 Bc4 Rd3 Qc1 Ng3+ Ke1 Nh5 Bf3 Qa2 Bb3 Qa8 Ba2 Rd2 Rb3 Kd3 Rb2 d4 Nd5 Qb7 Nc7 Qa8 Rg3 Rhf2 Rg2 h2 Rc2 h1N Bed5 Be8 Bg8 Bf7 Bfd5 Rf4 Rc5 Bg7 Nf8 Nf2 Nh7 Bf8 Bf3 Ke3 Rd5 d3 Rf5 Rfd4 Rf4 Na5 Rh4 Qd5 Rh1 Qe5 Bb7 Qd5 Ba8 Nc6 Rhh2 Ke4 Rh1 Rb2 Rhh2 d2+ Ke2 d1N+ Ke1 Rb1 Rh3 Nc3 Rh1 Nd3+ Kd2 Nf2+ Kc2 Rb3 Rh3 Rb1 Qd2 Rd1 Qc1 Rc4 Kb3 Rcd4+ Ka3 R1d2 Rhh2 Kd3 Qe1 Nf5 Nf6 Nhg7 Rh8 Nh6 Nh7 Nh5 Qc1 Nb1+
8/nKNn1P2/1r4r1/PN1bBR2/1qn2nrr/r1BR2b1/3pQb2/b5Bk w - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 g4 fxe4 d4 a5 g5 axb4 Bd3 cxd3 g6 hxg6 Kf1 g5 Ke1 g4 Kd2 Kf7 Ke3 Ke6 h4 Kf5 a4 c5 f4 b5 d5 g5 h5 e5 d6 b3 h6 b4 d7 b2 h7 d2 Qf1 c4 Qf2 b3 Qg3 c3 Nh3 c2 Qg2 g3 Rd1 Kg4 f5 Nf6 Ng1 Qb6+ Ke2 e3 Kd3 e4+ Kc4 e2 d8B e1N Qf1 e3 Bc7 g2 Qd3 e2 Qd8 Bg7 Qd5 Bb7 Ra3 Nd3 Bd6 e1B Nc3 b1R Qd4+ Nf4 Nf3 Kg3 Qe3 g1B Ne4+ Kg2 Qc5 b2 Qc8 g4 Nfg5 g3 Rd3 Nc6 Bc7 Na7 Be5 Nd7 f6 Bgf2 f7 Kh1 Nd6 g2 Qe8 g1R Nb5 Rg4 Ne6 Bd5+ Kb4 Qd6+ Ka5 Qb4+ Ka6 Ra1 a5 b1N Bcb2 c1R Bbd4 Na3 Bb6 Rc6 Kb7 Nc4 Nec7 Ra3 Bc3 Rc8 Qe2 Rcg8 Ra1 Bg3 Bg1 Bef2 Rf1 Bf6 Be5 R8g6 Bc3 Rh4 Be5 Rhg8 h8B Rgg4 Bc3 R8g6 Be5 Bd4 Bg7 Ba1 Bc3 Bd4 Rff3 Bdf2 Bge5 Ne6 Rf6 Nf4 Rf5 Rb6+
7R/nNr1RnBQ/K6P/1BBn2q1/1b1b4/2r2n1q/1P1pbrr1/1bkN4 w - - 0 1 legal: proof: e4 h5 a4 c5 g4 hxg4 d4 cxd4 e5 b5 c3 bxa4 Bg5 a3 Bc1 a2 Nd2 f6 Qa4 fxe5 Rb1 e4 Qc2 a1Q Qd1 Qa2 Ra1 Qb1 Qb3 Nc6 Qb8 Nxb8 Ke2 Kf7 h4 Ke6 f4 Kd5 h5 a5 f5 g5 h6 e5 f6 d3+ Ke3 g3 f7 a4 Rh3 g4 Ra3 g2 Rh2 g3 Nb3 Kc4 Rh3 d5 Ra1 a3 Nf3 g1B+ Kd2 a2 Rh2 e3+ Ke1 g2 Kd1 e4 Nbd4 e2+ Kd2 e1N Be2 e3+ Kd1 Nc6 Nb3 d4 Nh4 Qg5 Bg4 d2 Ke2 Nf3 Bh5 Nge7 Rh1 Qd3+ Kd1 Na7 Nf5 Ne5 Be2 Rh7 Nc5 Nd5 Nb7 Kb3 c4 Bb4 f8B Rc7 c5 Nf7 c6 Be6 Rh5 Rac8 Bg7 Bf2 Rh1 g1R+ Bf1 Qc3 Ke2 Kc2 Rh4 Bd7 Re4 Rg2 Re7 Qb3 Ng3 Be6 Ne4 Bf5 Nc3 Bh7 Nd1 Be4 Rb1 a1R Re8 Ra5 Rh8 Rf8 Ra1 Rc5 Ra5 Rc3 Rb5 Nb6 Re5 Nd5 Re7 Bg6 Kf3 Kb1 Bb5 Bc2 Ke2 d3+ Kf3 e2 Ke4 Ne3 Kd4 e1N Bf6 Qe6 Be5 Qh3 Bg7 Rcc8 c7 Nd5+ Ne3 d1B Bd2 Rcd8 c8Q Be2 Qf5 Rd7 Qh7 Rdc7 Bc1 Bh4 Nd1 Bf2+ Be3 d2 Ba4 Kc1 Bc6 Rd3+ Kc4 Bb1 Bc5 Nf3 Bb5 Bd4 Be8 Nc6 Kb5 Na7+ Ka6 Rc3+ Bb5 Rg8 Bd3 Rf2 Bb5 Qe3 Be5 Rgg2 Bg7 Qg5
2Qb1nR1/3P1p2/1r2qnr1/q7/bnr1Pr1N/KN3n1R/1q2BR1B/1k3q2 w - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 h4 g5 f4 gxh4 a3 bxa3 Qc2 exf4 Qa4+ Ke7 Qd1 Ke8 e4 Ke7 g4 Kd6 d4 h5 Kd2 b5 Kc2 c5 g5 h3 d5 Ke5 g6 c3 Kb3 h4 d6 c4+ Kb4 f3 g7 c2 Bd3 Kd4 Qe2 h2 Qd2 h3 Qf4 f2 Qg5 f1N Qg2 a2 Nd2 c3 Nc4 Rh4 Kb3 b4 Ne5 Qa5 Qg3 Bd7 Qf4 Nf6 g8R Ra6 Bb2 c1N+ Kc2 b3+ Kd1 Ba4 Rg6 Nd2 Qf5 Nbd7 Rh6 Be7 Qg5 Rf4 Rb1 a1Q Rh8 Nf3 Bc4 Nd3 Bc1 Qb2 Rd8 Nf8 d7 Nb4 Be2 Rb6 Rc8 Bd8 Nc4 Qa2 Ba3 c2+ Kc1 Kc3 Qg6 Qd5 Qg8 Qe6 Bd1 Qa1 Nd2+ Kd3 Ra8 Qae5 Rc8 Qa5 Kb2 c1R Qh8 Rc4 Be2+ Ke3 Rf1 Kd4 Ka1 Kc3 Rf2 Kc2 Qg8 Nbd5 Ra8 b2+ Ka2 b1R Bb2 Nb4+ Ka3 Rd1 Nb3 Kb1 Be5 Rd5 Bb8 Rg5 Bc7 Rg6 Qh8 Ng4 Qc3 Nf6 Bb8 Rd4 Qc7 Rc4 Qc8 Bc7 Nd4 Nh4 Bh5 N8h7 Re2 Rf3+ Nb3 Rf2 Nf3+ Rf1 Rg1 h1Q Rg3 h2 Qf8 Qg2 Rh3 h1Q Qh8 Rf2 Qe8 Qhf1 Qf8 Nf5 Nh4 Nd4 Rc2 Rf5 Bd1 Nf3 Qd8 Qg5 Rf2 Qd2 Qh8 Bd6 Qf8 Be7 Bh2 Rf4 Be2 Qd4 Qb8 Qde5 Qb7 Qd4 Rh8 Nf8 Qc8 Bd8 Rg8 Qb2#
1n1nr2n/1BBr1qP1/4k3/1KP1N3/3R4/Qq1p2pq/R3Rb2/3qNbqr w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 f4 gxh4 g4 e5 b5 exf4 b6 axb6 Qd2 b5 Qd3 b4 Qg3 fxg3 Kd2 Ke7 Kd3 h5 Kc4 b5+ Kc5 f5 e4 d5 c4 d3 a4 h3 e5 d2 e6 d1N g5 b3 g6 h4 a5 b2 a6 f4 g7 f3 a7 h2 Ra5 f2 Kb4 h3 Ra4 d4 Nc3 b1Q+ Bb2 Ne3 Ra2 Ng2 Nf3 Ba6 Ne1 Nf4 Nc2 Nh6 Na3 Ng6 Ne4 Nf7 Bd3 f1Q Rg1 h1R Bc2 h2 Kc5 b4 Ba1 b3 Ng5 b2 Be4 Rh4 Kb4 Ngh8 Bb7 Rh5 Nf3 Rd5 Rg2 Rd7 Nc2 Qb6+ Ka4 Nd8 Ne5 Qbd1 Rd2 b1Q Re2 Kf6 e7 Ke6 e8R+ Be7 Bc3 Qf7 Ba5 Q1b2 Rg8 Bc5 Rf8 Qba1 Rg8 Qbb1 Bc7 Qb3+ Ka5 Qg1 Ne1 Qad1 Rf8 d3 Rg8 Bf2 c5 Bc4 Rf8 Bd5 Rg8 Bg2 Rf8 Qe7 Rf4 Qf7 Rd4 Bf1 Rb4 Nbc6+ Kb5 Rc8 a8Q Nb8 Qa4 Ndc6 Rac2 Re8 Ra2 Nd8 Qa7 Qg2 Qa3 Qh3 Bc6 Rg1 Bf3 h1Q Bb7 Q1g2 Bc8 Rh1 Bb7 Qbd5 Rg4 Qg1 Rd4 Q5b3+
r3r3/K1n2Qn1/2B1n3/1Bk5/4qP2/Np1rbq2/Rp1qPBbq/1b1R3N w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 b4 gxh4 g5 c5 g6 a5 g7 axb4 Bb2 f5 Bc1 c4 Qd3 Ne7 g8N cxd3 Nh6 Ng8 Ng4 fxg4 Kd2 Ke7 a4 Kd6 c4 h5 f4 b5 a5 g3 a6 g2 a7 b3 Ra3 b4 Ra1 h3 Nf3 g1N Rh2 h4 Ne1 b2 Ra6+ Kc5 Ra2 d5 Nc2 b3 Nb4 Ne7 Rh1 h2 Bg2 h3 Ra6 Qe8 Ra2 Nf3+ Kd1 Bb7 Re1 h1Q Be3 h2 Nc3 Ng5 Kd2 Ne6 Nb1 Na6 Rd1 Nac7 Ra6 Nf5 Bf3 Nfg7 Na3 Qh5 Bg2 Qf3 Bf2 Qe4 Bh3 Qhf3 Ra4 Re8 a8B h1Q Ra6 Qh2 Ra7 Ng5 Bd7 N5e6 Bb5 Bc6 Nbc2 Bd6 Ne3 Rhg8 Bb7 Ra8 Nf5 Rge8 Ng3 Be7 Ke1 d2+ Kf1 Bf6 Nh1 Be5 Nb1 Bf6 Ra2 Be7 Na3 Bh4 Rda1 d1B Rb1 Bc2 Rd1 Bf6 Ke1 Bb1 Kd2 Kb4 c5 d3 Rf1 d4 Rd1 Bd5 c6 Be7 Nc2+ Kc5 Na3 Na6 c7 Bc6 c8Q Nac7 Ke1 d2+ Kf1 Bd5 Qd7 Bd6 B7c6 Bf8 Re1 d1Q Qf7 Qd2 Rd1 Kb6 Qg6 Bc5 Qf5 d3 Qf7 Qc2 Ke1 Be3 Kf1 Qc5 Ke1 Qd6 Kf1 Kc5 Ke1 Bd4 Kd2 Be3+ Kc3 d2 Qf6 Qg4 Rf1 d1R Qf7 Qeh7 Re1 Bg2 Rg1 Kb6 Kc4 Qf3 Re1 Qdd3+ Kb4 Qc2 Rf1 Rd3 Rd1 Rab8 Ka4 Kc5 Ka5 Qhe4 Qf6 Nd5 Ka6 Qd2 Ka7 Ndc7 Qf7 Ra8+
b2K3q/r6n/N5rR/1Rb1qPk1/1P1b1r2/p1nBr2B/Q1np4/q2NN3 w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 b5 a4 bxa4 b3 c5 h5 cxd4 h6 a3 Bb2 axb2 Be2 gxh6 Bb5 h5 Bf1 h4 Kd2 Kf7 c4 Kf6 g4 a5 f4 h5 f5 e5 b4 d5 c5 a4 c6 e3+ Kd3 e4+ Kc2 h3 c7 d3+ Kc3 d4+ Kc4 d2 Kb5 e2 Kb6 e1Q Ra2 h4 Bb5 e3 Qb3 d1Q Ba6 a3 Nd2 b1N Ndf3 h2 Rb2 d3 Qd5 d2 Bb5 e2 Ba6 h3 Qc4 Bb7 Rc2 Rh4 Qd5 Nc3 Qa2 Ra7 Bd3 Ba8 Rc1 Qe8 c8N Nc6 Ne7 Nd4 Nc6 Nc2 Nb8 Qg3 Ne1 Kg5 Na6 Qge5 Qe6 Nf6 Qa2 Nd4 Rc2 Qa1 Rc1 Nh7 Rc2 Ne4 Rc5 Nc3 Rd5 Nc2 Rb5 Kf4 g5 Bc5+ Ka5 Rh6 g6 Kg5 g7 Qh8 g8B Rg6 Bd5 Bd4 Bf3 Bc5 Bg4 Bd4 Ng2 e1B Ne3 Bf2 Nd1 Bfe3 Be4 Bc5 Bd3 Bed4 Nf3+ Kf4 Rg1 h1R Ne1 h2 Rg3 Kg5 Rh3 Rf1 Rh6 h1R Bh3 Bd6 Rc5 Rf4 Kb6 Rb7+ Kc6 Rh2 Rb5 Re2 Rh4 Re3 Rh6 Rb8+ Kd7 B6c5 Qg8 Rb7+ Kd8 Bf8 Qd5 Ra7 Qa2 Bfc5+
8/3pk1rn/R2q3N/2nnB1PB/b1K1BPq1/Rrb4p/1Q2N1r1/1qn2b2 w - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 Kd2 h5 f4 e5 g4 b5 c4 d3 Kc3 b4+ Kb3 a2 g5 d2 c5 e3 c6 e2 c7 e1Q Qe2 d1Q+ Kc4 b3 Bh3 e4 Rh2 b2 Bf1 e3 Rg2 h3 Qd2 e2 Qd6 h2 Qb6 h1B Bd2 h4 Nf3 h3 Rh2 Rh7 Nc3 b1R Qb4 Rb3 Ng1 Rg7 Kb5 Ba6+ Kb6 Nf6 Rf2 Qe7 c8B Qd6+ Ka5 Bc6 Qb7 Ke7 Qb5 Nh7 Ne4 Qb1 Rh2 Qh4 Bb7 e1N Ne2 Qg4 Nf6 Nd3 Bc3 Nb4 Be5 Nd5 Qb6 Ba4 Ng8+ Kf7 Nh6+ Ke7 Rf2 Ra7 Bc6 Rc7 Ba8 Rc2 Rf3 B6b5 Qd4 Na6 Qb2 Nc5 Rc3 Ba6 Bg2 Rd2 Be4 Rc2 Bg6 Bd3 Bh5 Bdb5 Ng3 Rg2 Re3 Bf1 Ne2 Rf7 Rd3 Bg7 Bb7 Ne3 Be4 Nd5 Rd4 Bh8 Rb4 Bf6 Rb6 Rg7 Ra6 Qd1 Rc1 a1N Rc3 Qb1 Rf3 Nc2 Re3 Ncb4 Rg3 Na2 Re3 Rb7 Rc3 Nc1 Ra3 Nb6 Kb4 Nd5+ Kc4 Rb6 Qa2 Rb3 Qb2 Qb8 Bc7 Bc3 Be5 Qd6
r4r2/1b1n1q1R/2r2q2/pr1B3N/n4q1B/R5p1/K1PP1brk/1QqB3N w - - 0 1 legal: proof: g4 c5 e4 d5 b4 cxb4 f4 h5 a4 hxg4 f5 b5 f6 bxa4 Qe2 exf6 e5 f5 Qd3 f4 Qe4 dxe4 Kd1 Kd7 h4 Ke6 h5 Kf5 e6 g5 e7 a5 e8B b3 h6 g3 h7 Kg4 Na3 f5 Rh3 e3 Nc4 e2+ Ke1 a3 Bb2 a2 Bc3 f3 Na3 g2 Bd7 b2 Be8 b1R+ Kf2 e1R Nb5 f4 Ne2 g1R Bb4 Na6 Bc3 Nc5 Bf7 Nf6 Nc1 Na4 Be2 Bc5+ Bd4 Nd7 Nc3 Rb5 Bd5 Rf8 h8Q Qf6 Nd1 Bb7 Nd3 Rg3 Qh6 Reg1 Rh1 R1g2+ Ke1 Qf7 Bf6 Bf2+ Kf1 Rh3 Qh8 Rhg3 Rh7 Rh3 Be7 Kg3 Qb2 g4 Qb1 Kh2 Bf6 g3 Bh4 Bg1 Ke1 f2+ Kf1 Qf6 Bef3 Qf7 Ke2 Qf6 Bh5 f3+ Ke3 f1Q+ N1f2 Qf7 Kd4 Qc1 Kc4 Qf4+ Ne4 f2 Bd1 Qf7 Nf6 f1Q Nh5 Q1f6 Nf2 Qh6 Nh1 Bf2 Qb4 Qhf6 Kb3 Qf4 Rb1 a1Q Rb2 Q7f5 Ra2 Qf7 Ra3 Qag7 Ka2 Qgf6 Bg5 Rh4 Qb1 Rg4 Bh4 Rg5 Bb3 Rgc5 Bd5 Rc6
KR1nn1Rn/1nb1rP2/1p2b3/PqrN3B/kN1p1b2/B2B1b2/3Q4/2q3b1 w - - 0 1 legal: proof: c4 f5 b4 c5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 c5 bxc5 Qa4 c4 Qd1 c3 Ke2 e5 g4 d5 a4 Kd7 f4 Kc6 g5 h5 f5 h3 a5 Kb5 g6 h4 f6 d3+ Ke3 b6 g7 d4+ Kf2 c2 f7 e3+ Kf3 e2 Ke4 e1B Bd2 c1B Bg2 h2 Ne2 h3 Ra2 Be6 Qc2 Ra7 Ra1 Nf6+ Kf3 e4+ Kf4 e3 Ke5 Qe8 g8B Bf2 Nf4 e2 Qd1 e1N Be4 Bg1 Nh5 Nc6+ Kf4 Re7 Ra3 Ng2+ Kf3 Nh4+ Kf4 Nd8 Ke5 Ng6+ Kd6 Bg7 Nf4 Rh5 Bf5 Nh8 Bg6 Rc5 Bb4 d2 Rg3 Bf8 Qe2+ Ka4 Na3 d1N B8h7 Qb5 Qd2 Nf2 Nd5 Nd3 Bh5 Bh6 Rg8 Bhe3 Nc4 Bf4+ Ne5 Bg3 Qc3 Bcf4 Ba3 Bge3 Re1 h1B Qd2 h2 Rc1 Bf3 Rc2 Nb4 Bd3 h1Q Rc1 Nbc6 Rc2 Bd7 Kc7 Nb7 Rc3 Ncd8+ Kb8 Bh3 Ka8 Ne8 Nc6 Be6 Ncb4 Bc7 Rc1 Bgf4 Rcg1 Bf2 R1g5 Qc1 Rf8 Bg1 Rgg8 Ned6 Re8 Nc6 Rd8 Ne8 Rb8 Ncd8
3nqB1r/5N2/4b3/RQ3b2/bp3B2/pnnNR1rP/kPr2q1K/b2B3n w - - 0 1 illegal: Other
n2q2q1/1Pb1R2R/1N2b1B1/4r1BQ/P1r1r1Nn/p1k2b2/3p3K/1rN1nb2 w - - 0 1 legal: proof: f4 a5 h4 c5 d4 cxd4 f5 g5 f6 gxh4 Kf2 a4 Ke1 exf6 Bh6 f5 Bc1 f4 b3 a3 Qd2 Ra6 Qc3 Ra5 Qb2 Ra8 Nf3 b5 Ng1 axb2 a4 b4 Ra3 bxa3 b4 Ba6 Nc3 Bb7 Nb1 Bc8 Kf2 Ke7 e4 Kd6 c4 Ke5 g4 f5 Kg2 h5 c5 d5 g5 d3 g6 Kd4 e5 h3+ Kh2 f3 b5 f4 e6 h4 c6 f2 c7 d2 b6 d1N g7 f3 e7 Be6 c8R Na6 e8N Nc7 b7 Nh6 g8Q Nf5 Nd2 b1R Ng7 Kc3 Nb3 d4 Qf7 d3 Nd4 d2 Qg8 Nb2 Bd3 f1B Bc4 f2 Be2 Nd3 Nb3 Ne1 Bd3 Rh5 Ne8 Bd6+ Qg3 Be2 Rb8 f1B Nf6 Bf3 Na5 Qg8 Rd8 Rc8 Ng4 Na8 Rd7 Rc4 Re7 Bc7 Qd6 Re4 Nc4 Rb4 Nb6 Rbc4 Qf4 Nd4 Nd7 Rhe5 Qg5 Nf5 Ne2+ Kb4 Nd4 Kc3 Nb6 Qd8 Qh5 Qg8 Kg1 Qd8 Nb3 h2+ Kf2 h3 Bb2+ Kb4 Bc2 Nh4 Kg3 Qg8 Bd4 Qd8 Be3 Kc3 Nc1 Qg8 Rg1 h1Q Bg5 h2 Rg2 Qg1 Rh7 Qc5 Re2 h1R Bd3 Rg1+ Kh2 Qcf8 Bc2 Rb4 Bd3 Rec4 Bg6 Qd8 Re4 Rb1 Rd4 Rg3 Rdd7 Rg1 Rde7 Rg2+ Kh3 Rge2+ Kg3 R2e3 Kh2 R3e4
N1N2kqr/PB1bp3/K2q3R/6rr/Q1n1r3/qR1p4/nq1bB1NP/1n6 w - - 0 1 legal: proof: d4 a5 g4 c5 e4 cxd4 f4 f5 b4 axb4 g5 fxe4 f5 h6 f6 gxf6 g6 f5 Bg5 hxg5 Bg2 f4 Bh3 Rh6 Bf1 Rh8 Ke2 b5 a4 d5 c4 f3+ Kd2 f2 c5 e3+ Kd3 b3 c6 g4 c7 e2 g7 e1R a5 b2 a6 b4 a7 g3 Ra5 g2 Qe2 b3 Qd1 Nf6 g8N Bd7 c8B Rh5 Nc3 b1N Nb5 b2 Qc2 Nc6 Ra6 Re4 Be2 f1Q Qd2 Na5 Qe1 Bh6 Bb7 Qf3+ Kc2 Nc4 Nc7+ Kf8 Qa5 d3+ Kb3 d4 Kb4 d2 Qa4 d1Q Nh3 g1R Nf4 Rgg5 Ng2 Nd5+ Kc5 Qd2 Nf6 Ndc3+ Nfd5 Na2 Rc1 Qg3 Rc3 d3 Rb6 Qc1 Rcb3 Qgf4 Rc6 Qd6+ Kb5 Rc8 Na8 Qc3 Rb4 Qa3 Ka6 Qe8 Rbb6 Qf7 Rb3 Qg8 Rb5 Nbc3 Rbb6 b1Q Rb3 Qbb2 Ndb6 Re8 Nc8 Nb1 Bg4 Rc5 Bf3 Bd2 Be2 Rcg5 Qa5 Qg3 Rh6 Qgh8 Rhb6 Kf7 Rh6 Qgd6+ Ncb6 Reg8 Qa4 Kf8 Bf3 Qh7 Bg4 Rh8 Be2 Qb8 Nc8 Qg8 Qa5 Q8e5 Qa4 Qed6+
1n6/Rp2nn2/2q1P1Rr/B2p1N2/1r6/1rQ1prbB/P1Nr3b/Nb1k3K w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 f6 exf6 Qd2 f5 Qf2 f4 Qe3 dxe3 c4 Ke7 h4 Kd6 e5+ Kc5 h5 Kd4 h6 f5 c5 d5 h7 g5 c6 f3 c7 g3 Nc3 g4 Ba6 b3 Kf1 g2+ Ke1 f4 Nb5+ Kd3 Nh3 Kc2 Na7 g1N Kf1 g3 Rh2+ g2+ Ke1 b2 Nc6 b1R Na5 Bd6 Nf2 Qd7 Rh6 Rb4 Nb3 Qc6 Nd3 Bf5 c8N Ne7 Bd2 Nh3 e6 g1B Kf1 f2 Kg2 f1R Rh4 f3+ Kh1 Bdh2 Nd6 f2 Rf4 Rc1 Ne1+ Kd1 Nc2 Bg3 Bf1 Ng5 Bh3 f1R Re4 Bg6 Nf5 Ra3 Rb1 Rf3 Nba1 B1h2 Rd4 Rg8 h8Q Nf7 Rf4 Rf8 Qc3 Rh8 Rg4 Rh5 Rb3 Rh6 Rg5 Bh7 Rg6 Rb1 Be1 Rd4 Rb4 Rd2 Ra4 Rb4 Ra7 Rab3 Qc5 Rdd3 Bc3 Rd2 Qc4 Rb5 Ba5 R5b4 Qc3 Rb6 Rf6 Rff2 Nb4 Bh4 Nd4 Bb1 Nf5 B4g3 Nbc2 Rf3 Rg6 R6b4
1N2k1B1/2R2n2/1n5p/qRn1p1br/b2P1bp1/q1P4n/3r1N2/Bn3QNK w - - 0 1 legal: proof: g4 a5 e4 f5 b4 fxg4 e5 axb4 h4 gxh3 e6 c5 Nf3 b3 Ng1 dxe6 Qg4 e5 Qd4 e4 Qb4 cxb4 a4 e5 d4 g5 f4 b5 Kf2 g4 f5 e3+ Kg3 b2 Kh2 b3 c3 e2 f6 e1B a5 b4 a6 Bh4 a7 Nh6 Nd2 b1N Ne2 b2 Ra3 b3 Nf4 Nf7 Nd3 Bd7 Ra5 Bg5 Nc4 Na3 Rc5 b1N Nf2 b2 Kg1 Bfh6 Nd2 Nc4 Rb5 Nb6 Nf3 Na6 Bc4 h2+ Kg2 Qe7 Ng1 Qa3 Bd5 Rb8 a8Q Nc5 Qa6 Bf4 Bc4 Bhg5 Ba2 Nd8 Bg8 Nf7 Rb4 Ba4 Qf1 Nd2 Rb5 b1Q Bb2 Qba2 Ba1 Nb1 Ra5 Nbd7 Ra7 Rb2 Rc7 Nb6 Qc1 Rd2 Qf1 Nd6 f7+ Kd8 f8N Ke8 Nd7 Nf7 Nf3 Qd5 Rg1 h1N Nb8 Qa8 Qd3 Qa5 Qf1 Ng3 Rh1 Ne2 Rh6 Ng1 Kh1 Nh3 Rg6 h6 Ng1 Rh7 Rgc6 Rg7 Rb7 Rg6 Rcc7 Rf6 Qd3 Rf5 Qf1 Na8 Rb5 Nb6 Qe1 Bd8 Qe2 Rh5 Qf1 Bdg5
6B1/1Np1p1N1/nn1nBp2/3Q1RPK/P1qrqr2/B6n/2b1R1q1/2n2kb1 w - - 0 1 illegal: Other
1B4b1/1PB3b1/6p1/Rqp1BR1q/K2N1rN1/3qP1kq/pq2b2n/1r1Qn3 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 Ra3 b5 Ra1 bxa4 g4 exf4 g5 f3 Bg2 fxg2 g6 hxg6 Kf2 g5 Ke1 g4 Ra3 g3 Ra2 Rh7 Ra1 Rh8 d4 Ke7 Kd2 Kd6 Kc3 c5 h4 a5 b4 f5 b5 a3 h5 g6 h6 f4 b6 f3 d5 Ke5 b7 a2 d6 a4 d7 f2 h7 f1B Rh6 a3 Bb2 Kf4 Rh1 Bg7+ Kc2 c3 Kb3 c2 Rh6 c1Q Rh3 Na6 Rh1 Qe3+ Qd3 Nf6 Qc3 Nb4 Rh3 Nc2 Nd2 Ng4 Nb1 Nh2 Nf3 g1Q Nd4 g2 Bc1 Qh1 Qd3 g1Q Rh6 Ne1 Nd2 Ra4 Rh5 Qh3 N2f3+ Kg3 Qd1 Qf2 e3 Be2 Bb2 Qff1 Ne5 Qe8 d8B Be6+ Nc4 Qhf3 Rf5 Qfh5 Ba5 Rf8 h8B Bg8 Bb6 Rf7 Ne5 Ra5 Bc3 Rb5+ Ka4 Qd7 Ng4 Rb1+ Nc6 Qd2 Nd4 Qd3 Ba7 Rf8 Ba5 Rf6 Re5 Rf3 Bb8 Rf4 Bac7 Rb5 Rc1 a1Q Rf5 Rb1 Rc3 a2 Ra3 Bf8 Bhe5 Bg7 Rb3 Qb2 Rb5 Qfg2 Ra5 Qc6+ Rb5 Qb6 Ra5 Q6b5+
2r4R/p1Bn2Q1/1q6/1b1P1prK/kp3bN1/b1PnR3/6bB/nq1b2NR w - - 0 1 legal: proof: b4 b5 a4 bxa4 e4 d5 f4 dxe4 h4 e5 h5 exf4 b5 c6 h6 gxh6 b6 h5 Bd3 h4 Bb5 cxb5 Kf2 Kd7 d4 Kc6 g4 h5 g5 f3 g6 e3+ Ke1 e2 Kf2 e1B+ Ke3 f2 Kf4 f1B g7 a3 c3 h3 b7 h4 Qd3 a2 Ba3 h2 Qg6+ Nf6 Kg5 h3 g8R Bg4 Qc2 Na6 b8B Nb4 Be5 Rh6 Qd3 Nd7+ Bf6 Rg6+ Kf4 Bd2+ Qe3 Bd1 Bg7 f5 Be5 Qb6 Rh8 Rc8 Bc7 Bc1 Nd2 Bfe2 Qe7 Nd3+ Ke3 b4 Qg7 Kb5 Rb1 Bb2 Ndf3 a1N Ne5 Bd6 Ng4 Ka4 Rc1 Be5 Rc2 Bf1 Re2 Bf4+ Kf3 Bh6 Kg3 Bf4+ Kh4 Bg2 Qe5 Bc6 d5 Bb5 Kh5 Bbc1 Nf3 Bb2 Qg7 Bbc1 Rf1 h1Q Re3 h2 Ng1 Qe4 Rfe1 h1B Rf1 Bg2 Rfe1 N3c5 Rf1 Qb1 Rfe1 Bd2 Bc1 Nd3 Rf1 Be1 Bd2 Bh4 Be1 Bhg5 Bg3 Bh6 Bh2 Bhg5 Rh3 Bc1 Re3 Ba3 Nh3 Bh6 Rh1 Bf4 Ng1 Rg5+
8/7K/rNQn1BBp/1nP1b1nN/2n2pb1/q1p2q2/B1b2P1k/1Rr1R2r w - - 0 1 legal: proof: c4 c5 b4 d5 d4 cxd4 h4 a5 e4 dxe4 h5 axb4 h6 gxh6 Qf3 h5 Qe3 h4 Qc3 bxc3 Ke2 Kd7 g4 Ke6 a4 f5 c5 b5 a5 e3 Kd3 b4 a6 e2 g5 e1N+ Ke2 b3 a7 b2 g6 h3 g7 f4 Nd2 Kf5 Rb1 Kg4 Ngf3 e5 Ng5 h2 Ne6 e4 Nb3 d3+ Kd1 d2 Ke2 d1N Na5 e3 Ra1 b1B Ra2 Bd6 Ba3 Nc6 Ra1 Nge7 g8B Nf5 Bb4 Be5 Bf7 Bc2 Nc4 Qa5 Be8 Nf3 Rb1 Nb2 Bg6 Ng5 Nb6 Nc4 Ng7 Qa3 Ba5 Nfd6 Nh5 Kh4 Rg1 h1Q Bh3 Qe4 Be6 Bd7 Bd5 Kh3 Rge1 Kh2 Bdf7 h6 Bd5 Rhe8 Bdf7 Re6 Bg8 Rae8 a8Q Na7 Qc6 Nab5 B8f7 Ra8 Bg8 Ra6 B8f7 Qd5 Bg8 Nge4 Kf3 e2 Kg4 Ng5 B8f7 Re7+ Kh4 Qf3 Be6 Ne3 Ba2 Rg7 Na8 Bg4 Bd8 Nec4 Bf6 Rb7 Nb6 Rd7 Rf1 e1R Rg1 Rc1 Re1 Ne8 Be4 Rg7 Bh7 Ne6 Ng3 Bh3 Bf5 Rg4+ Kh5 Ng5 Kg6 Ned6 Nh5 Rg1 Kg7 Rh1 Bg6 Bg4 Kg8 Ne6 Kh7 Ng5+
2B2Nb1/1Pq2n2/1r5R/1qq1QqN1/4pR1r/1KnP2rp/6bp/1kB1b2R w - - 0 1 illegal: No possible last move, all moves rejected
BbbR4/1b3Q2/Nn4bn/1P1b4/2pb4/2nR1PpR/r1p1BNK1/k3q2r w - - 0 1 legal: proof: h4 d5 g4 b5 a4 bxa4 d4 e5 c4 exd4 g5 dxc4 h5 f6 h6 gxh6 g6 h5 Bd2 h4 Bg5 fxg5 e4 Ke7 b4 Kd6 b5 Ke5 g7 a5 Nc3 c5 Rh2 h5 Qc2 g4 Be2 d3 Kf1 Kd4 e5 h3 e6 g3 e7 d2 e8R d1B Bg4 h4 Re1 a3 Qe2 a4 Qc2 a2 Bf3 a3 Be4 Qe7 Bd5 Nh6 g8B Nd7 Re6 Bh5 Re2 Nb6 Ne4 c3 Qb3 c2 Rb1 a1B Rc1 c4 Qa4 a2 Qa3 Bg6 Rg2 h2 Bde6 h1B Qa7 h3 Re3 h2 Rb1 Qb4 Bd5 Bd6 Bgf7 Bb8 Nh3 Bb2 Rc1 a1N Nc5 Nb3 Na6 Nc5 Rd1+ Qd2 Bf3 Ne4 Bd5 Nc3 Be2 Rh7 Rg1 Rh8 Bc6 Bd5 Qf7 h1B Re8 Ra7 Ba8 Bdb7 Rg8 Bhd5 f3 Ba1 Rh1 Rh7 Nc7 Ra2 Rd8 Bb2 Kg2 Ba1 Rb1 Qe1 Rb3 Rh8 Na6 Rh7 Bd1 Kd3 Be2+ Kd2 Nc7 Kc1 Nf2 Rh8 Ra3 Kb1 Na6 Bb2 Rh3 Ka1 Qe7 Bc1 Qf6 Be3 Qf7 Bd4 Rb3 Nca4 Re3 Nc3 Rd3 Ng8 Rh5 Rh6 Rg5 Rh4 Rh5 Rh1 Rh3 Nh6
bkrR3K/1np2Rp1/4N1nP/5r1r/1bq2nP1/q2B4/2R2r1p/2nB1NQ1 w - - 0 1 legal: proof: b4 d5 g4 h5 f4 e5 c4 exf4 h3 dxc4 d3 a5 Bd2 f3 Bf4 axb4 Bh2 h4 Qc1 Qg5 Qf4 Qd8 Qg3 hxg3 Kd2 gxh2 Kd1 Ra6 Ke1 Ra8 Kf2 Kd7 Kg3 f5 Kf4 b5 Ke5 f2 e4 b3 a4 f4 h4 c3 h5 c2 d4 c1N d5 b4 d6 b2 a5 f3 a6 b3 a7 Qe7+ Kf5 Bb7 Kg6 Kc8 e5 Na6 e6 Nc5 Nd2 b1R Ne2 b2 Nf4 Bc6 Ba6+ Nb7 Ra2 f1R Bd3 Rf2 Nf1 Ra1 Rg1 b1N Rc2 Nc3 h6 Ra5 Rg2 Rh5 Rg1 Rb8 a8Q N3e2 Qa7 Ra8 Qa1 Kb8 d7 Qa3 e7 Raa5 e8B Bb4 Ne6 Nf4+ Kf7 Ne7 d8R+ Ka7 Rg3 Neg6 Qb1 Bd5 Ba4 Rb5 Rd7 Rc8 Rd8 Be4 Kg8 Kb8 Qa1 Rbf5 Qd4 Rd2 Qg1 f2 Rf3 Bd5 Rc5 Rb2 Bd1 Re2 Rc2 Rd2 Ne3 f1Q Kh7 Rf2 Kg8 Nh4 Kh8 Qe2 Nf1 Qe4 Re3 Qc4 Re5 Bf3 Rd5 Bh1 Rd7 Bd5 Rf7 Nhg6+ Kh7 Na5 Kg8 Ba8 Kh7 Nb7 Kg8 Nh4 Kh8 Nhg6+
r1N1qB2/pN2N1pb/5r1R/K2p2n1/3nnr2/Pq1q2BP/1b2pRQ1/1k6 w - - 0 1 legal: proof: c4 c5 b4 h5 e4 f5 g4 hxg4 d4 cxd4 b5 fxe4 Be2 d3 Kf1 d2 c5 Kf7 c6 bxc6 b6 Ke8 Bb5 cxb5 Ke2 Kf7 f4 Ke6 f5+ Kd5 h3 Kc4 f6 d5 b7 e5 f7 e3 Nf3 g3 Rg1 b4 Re1 g2 Nc3 g1N+ Kf1 Kd3 Qb3 d1Q Nd4 e2+ Kf2 e4 Bd2 Nc6 b8N Bf5 Ne6 Nd4 Bf4 Bh7 Qb2 b3 Rf1 e1R Bg3 Nf6 Nb5 Qe8 Nd8 Ngf3 Nbc6 Ba3 f8B Ng5 Nb7 Qb1 N5d6 e3+ Kg1 Qd1 Qg2 b2 Nc8 b1Q N6e7 e2 Kf2 Kc2 Ke3 Nfe4 Rf2 Bb2 a3 Qa2 Rb1 Rf1 Rc1+ Kb3 Rc6 Qd3+ Kf4 Rg8 Rh6 Kc2 Ke5 Kc1 Rf4 Kb1 Rf2 Nc5 Kd6 Nce4+ Kc7 Qab3 Nc5 Nb5+ Kb7 Rh8 Ka6 Nd4+ Ka5 Rg8 Nb7 Rh8 Nc6 Rg8 Be7 Rf8 Bb4 Rf4 Bf8 Rc1 N6e7 Rc6 Ng6 Re6 Nge7 Ref6
2R3bb/B2p4/4nrQn/1PPp2qb/NR1pb3/b2KN2B/4p1r1/B3kn2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 e5 g5 e6 gxh4 Qf3 fxe6 Qd5 exd5 Ke2 Kf7 c4 Kg6 g4 h5 b4 e5 f4 a5 g5 Kf5 g6 Kg4 f5 Kg3 f6 a3 c5 a2 f7 h3 g7 e4 Na3 a4 Nb1 h2 Nc3 e3 Nh3 h4 Nf4 h3 Bg2 a3 Kd3 Kf2 Bd2 e2 Bc1 Qg5 Bb2 Na6 Rab1 a1B Be4 a2 Bg6 Nh6 g8Q Bg7 f8B Nc7 Rhd1 h1B Qe6 h2 Nh5 Bf3 Re1 h1B Rg1 Ba6+ Kc2 Rg8 Bh7 Bh8 Qe8 Ne6 Ng7 Bh5 Bd6 B1f3 Qg6 Raf8 Nf5 Rf6 Ne3 Bd3+ Kd2 Bf5 Na4 Bh3 Bc3 Bb2 b5 a1N Bb8 Nc2 Kd3 Ba3 Ba1 Rg7 Rg4 Rg8 Rb4 Ke1 Ba7 Rg7 Nd1 Ne3 Rg3 Nf1 Ne3 Nd8 Rg1 Be6 Rg4 Bg8 Rf4 Ra6 Rf8 Rf6 Re8 Ne6 Rc8 Nc7 Qe4 Ne6 Bf5 Qh4 Bh3 Rg2 Qh7 Qg5 Qg6 Be4+
1Br1N3/1p1pq1P1/2Br1n2/2p1Q2b/2k1n3/b3R2r/p1rRPB2/1r2K1Nb w - - 0 1 illegal: Other
1rq2b1B/1k3npP/pN1pPB2/2n2Npb/4b2Q/4rRR1/Kn2n3/1r3N2 w - - 0 1 illegal: Other
3B2r1/4p1N1/NpP1r1pQ/b2b3n/5Rpk/2P1bR2/B2Kn3/r2nqBr1 w - - 0 1 illegal: Other
1Q1Nk1br/2BnpN2/R2R1qp1/pK3BqP/5p2/b4n2/r1rRbP2/4b3 w - - 0 1 legal: proof: g4 d5 e4 dxe4 d4 exd3 b4 b5 a4 bxa4 b5 h5 b6 hxg4 Kd2 cxb6 Ke1 b5 Ra3 b4 Ra2 Nf6 Ra1 Ng8 Kd2 f5 c4 g3 h4 b3 Kc3 f4 Kb4 a3 c5 g6 c6 b2 h5 d2 c7 a2 Bd3 g2 Qg4 d1B Qe6 Nc6+ Kc5 Qd6+ Kb5 Bg7 Ne2 g1Q Bd2 Nf6 Ba5 Nd7 Nd4 Qg5+ Qe5 Qdf6 Nc3 Be2 Ne4 Bb7 Rad1 a1B Rd2 Rc8 Bb6 a5 Rhd1 Ba8 Ne6 b1R+ Kc4 Rc1+ Kb5 Rc2 Nd8 Rb8 c8R Bb2 Rc7 Ba3 Ra7 Rb7 Ra6 Nd4+ Ka4 Ra2 Qb8 Nf3 Bc7 Rbb2 Bb1 Bd5 Nd6+ Kf8 N6f7 Ke8 Bf5 Rc2 Ne5 Bg8 Nef7 Qb6 Rd6 Bc3 R1d2 Bcb4 R6d5 Qbf6 Rdd6 Bd1 Kb5 Bc3 R2d5 Be1 Rd2 Be2+
2bN2Nr/r3p1pp/6pb/1P1KQ2q/n4N1P/B3B1k1/2n1Rn2/q1b2R1n w - - 0 1 illegal: Other
3BK3/4b3/2Rpk3/pqP1p3/1NpP1r2/n2Np1q1/1n1QBqrn/1B3R1b w - - 0 1 legal: proof: h4 f5 e4 fxe4 a4 g5 c4 gxh4 b4 b5 Qb3 bxa4 b5 c6 c5 cxb5 Qc4 bxc4 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kd5 a5 g4 d6 f4 a3 d4 e3 g5 h3 f5 a2 f6 h4 Nc3 h2 Bb2 h3 Nge2 Nd7 Kc6 Nb6 g6+ Ke6 f7 Rh4 g7 Qe8+ Kc7 Na4 Nc1 Nh6 g8B Ng4 Rb1 a1N Nd5 Nc2 Bh7 Bb7 Bc3 Na3 Rb6 Qb5 Bb1 Nb2 Be1 Bc6 Rg1 h1Q Nd3 h2 N5b4 Qg2 Ra6 Ra7+ Kd8 h1Q Bf2 Bf3 Rc6 Qhh3 Ke8 Nh2 Be1 Rg4 Bh4 Qd2 Bd8 Bh1 Ba2 Rg2 Bb1 Bg7 f8Q Qg3 Qf4 Bf8 Qf2 Rf7 Qe1 Qdf2 Qd2 Rf5 Be2 Be7 Rf1 Rf4
1B1NR2q/1K1b2pB/1rr1Bb2/Q2n1ppN/Pp1k2p1/5r2/Rn2P3/b3b3 w - - 0 1 illegal: No proof kernel
1nrn3Q/4Rbq1/3pq2B/2RNb3/1n3P2/p3Bb1k/2r4P/KNb1Q3 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 g4 h5 c3 dxc3 Bh6 cxb2 Bc4 hxg4 Bd5 e6 Bc1 exd5 Kd2 Ke7 Kc2 Kf6 f4 g5 b6 a5 b7 a4 Qd3 a3 Kb3 g3 Ka2 d6 Nd2 b1N Qe4 g2 Qa4 d4 Qd1 d3 Qf3 g4 Qc6 g3 Qb5 Nh6 Qb4 Nc3+ Kb3 Qe8 Nh3 g1Q Rb1 g2 Nc4 d2 Ne3 Qe6+ Kc2 Bg7 Ng5 Na2 Nf3 Nf7 Rb2 d1B+ Kb1 Bb3 Nd2 Nd8 Rc2 Ra7 Qe4 Nb4 Rc5 Bd1 Ka1 Bf3 Nb1 Ra5 Rc7 Rc5 Re7 Rc2 Bd2 Bd7 Bc1 Be8 Bd2 Nb8c6 b8Q Bf7 Qc8 Rf8 Qa8 Nb8 Bc1 Bh8 Nd5+ Kg7 f6+ Kh6 Bd2 Kh5 Qe1 Kg4 Bc1 Qa7 Be3 Kh3 Rf1 g1B Rf2 Rc8 Rc2 Rg8 Rc5 Rg2 Qc6 Rc2 Qe8 Bg7 Qh8+ B7h5 Bd4 Be3 f7 Bc1 f8B Be5 Bh6 Qb7 Re8 Qg7 Re7 Rc3 Bf2 Bf7 Be3 Rc2+
8/b1npQb2/qPRn1RNr/2P3B1/3k1b1b/3Nrrqn/5Qp1/1B2K3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 Ke7 e4 Kf6 b4 Ke5 h4 a5 h5 g5 b5 f5 h6 g3 h7 g2 Kd2 g4 Be2 a3 Rh2 a2 Rh1 f3 Qe1 a4 Qh4 a3 Qh5 g3 Qh4 d3 Nc3 f4 Rb1 a1B Nh3 g1B Nf2 g2 Qg3 a2 Qg4 Ba6 Rh6 Bd6 Rh2 Kd4 e5 Qg5 e6 Nf6 e7 Ne8 Qf5 Qg3 Nh3 f2 Qg6 f1Q Qh5 f3 Qg6 f2 Qg5 Bb2 Rh1 a1B Na4 Bb7 Bh5 Bd5 Nc5 Bf7 Nf4 Ra4 Bg6 Na6 Rh6 Nac7 Be4 Be5 Rc6 Nd6 e8Q Bf6 Qh6 Bh4 Ng6 Ba3 Qe7 B1b2 Na6 Bc5 Nb4 Ba7 b6 Ba1 c5 Bh2 Ba3 Bb2 Re1 Bc1+ Kd1 d2 Bb1 Qb5 Nd3 Qa6 Re6 f1R+ Ke2 d1N Rf6 Bd2 Bc1 Nf2 Qhf8 Bh6 Bg5 Nh3 Kd2 Rf3 Ke2 Rg8 h8Q Bg1 Qh7 Rh8 Kd2 Bh2 Qe1 Bg1 Qc1 Be3+ Kd1 Kd5 Qe7 Re4 Qg8 Kd4 Ke2 Be8 Qa2 Bf7 Kd1 Bg7 Qac2 Rh6 Qf2 Bh8 Ke1 Bg7 Rf5 Be5 Rf6 Bf4 Qxe3+ Rexe3+
1Rrb4/4N1BB/1Q1bP3/1rQpnRNK/2p2r1q/1n5n/1k2pP1b/7q w - - 0 1 legal: proof: c4 b5 h4 bxc4 a4 g5 b4 gxh4 b5 a6 Ba3 axb5 Bb2 bxa4 Bc1 a3 e4 f5 d3 fxe4 Kd2 e3+ Kc2 e2 Kc3 Nc6 Kd2 Nb8 Nh3 e5 Kc3 e4 Ng1 Bb7 Kd2 e3+ Kc2 Be4 dxe4 Bd6 Ra2 Be7 Ra1 Bf8 g4 Ke7 g5 Ke6 e5 e1B g6 c5 g7 h5 Bb2 d5 Bd4 a2 Qf3 c3 Kd3 c4+ Ke2 h3 Qg3 c2 Kf3 c1N Na3 h4 Kg4 h2 Ba7 h3 Bd4 e2 Nf3 Qc7 Qh4 Ra5 Bb6 Nf6+ Kg5 Nb3 Bg2 Rb5 Be3 Nh5 Ng1 Nd7 Nc2 Ba5 Qd4 Nf4 Qc5 Bd6 Bd4 Rc8 Rb1 a1B Nb4 Qb8 Kh6 Bd8 g8Q+ Kf5 e6 Ne5 Nf3 Ke4 Nc6 Kd3 Qe8 Kc2 Ne7 Bb2 Rhg1 h1Q Qec6 h2 Q6b6 Nh3 Kh5 Bc1 Ng5 Bf4 Be3 Qc7 Be4+ Kc3 Bh7 Bg3 Ra1 Kb2 Ra8 Bf4 Rb8 Bg3 Ng8 Qg7 Ne7 Bf4 Nf7 Qg3 Bd4+ Qc3 Rg6 Nc6 Rh6 Ng5 Ng6 Qg2 Bg7 h1R+ Nh4 Ne5 Bg8 Rg1 Rg6 Nh3 Ng5 Qh1 Nf5 Bh2 Ne7 Rg4 Bh7 Rf4 Rf6 Qg3 Rf5 Qh4#
q2Q1b2/1r1R2nk/1B1Pb1br/n5rp/p6N/b4P2/QN2B2p/K3Rq2 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 cxb4 h4 f5 c4 fxe4 c5 g5 c6 gxh4 Nc3 dxc6 axb5 cxb5 Nb1 b3 d4 Kf7 Kd2 Kg7 Kc3 h5 Kb2 a5 g4 e5 d5 h3 g5 e3 g6 b4 f3 h2 d6 e4 Nh3 e2 Nd2 e1Q Qe2 a4 Rb1 e3 Qa6 e2 Qb5 Ne7 Qc5 Rh6 Rg1 Nbc6 Qc2 Nf5 Ka1 b2+ Ka2 Ra5 Nc4 Be6 Nf4 Qa8 Ng2 Rd5 Nh4 Na5 Ra1 b1R Be3 Re5 Bb6 b3+ Ka3 b2 Ka2 Kh8 g7+ Kh7 Qd2 Qf2 Qd5 e1B Be2 Bb4 Re1 Rd1 Rc1 b1B+ Ka1 Qf1 Nb2 Ba3 Qa2 Rd4 Rc3 Rb4 Rc7 Reb5 Rd7 Rg4 Bg1 Rb7 Bb6 Rg5 Ng2 Kg6 g8Q+ Ng7 Qh8 Be7 Qc8 Kh7 Qd8 Bg6 Nh4 Bf8
2rQ3n/1Pb4P/3b2R1/1nQ2K2/q2n1nn1/bknNRbNB/1q1Br3/6b1 w - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 g4 h5 f4 exf4 c3 dxc3 Qd6 hxg4 Qd5 Rh6 Qd1 Rh8 Kf2 Ke7 b4 Ke6 h4 g5 e4 a5 b5 f5 b6 d5 b7 a3 h5 c2 h6 a2 e5 g3+ Kf3 g4+ Ke2 g2 Kd3 a4 h7 f3 Be2 g3 Be3 c1B Rh3 f2 Bg4 f1Q+ Qe2 a3 Bb6 d4 Rh6+ Kd5 e6 f4 e7 f3 e8Q f2 Re6 Nh6 Bh5 Na6 Ba5 Qb6 Qe7 Qb2 Rf6 Qd1+ Nd2 f1N Q7e3 Qa4 Ndf3 Nc7 Rf7 Nh2 Rb1 a1B Bd2 a2 Qe1 N2g4 Q1f2 Nb5 Qfe2 Bd6 Bg6 Re8 Rf8 Nf7 Qf4 Nh8 Nh3 g1B Nh2 g2 Qe1 Re2 Nf2 Bd7 Nf1 Bc6 Qh6 Rc8 Rf6 Kc5 Bg5 Bf3 Qd1 Kb4 Qd2+ Kb3 Qh5 Bc7 Qa5 B1f4 Rc1 Bfd6 Bd2 Re5 Qf5 Qba3 Rc6 Nh6 Rc1 Bb6 Bb4 Bb2 Bc5 a1N Rc4 Nc2 Ne4 Bf2 Nfg3 g1N Bb4 Ne2 Qh5 Qa1 Bf5 Ba3 Rg6 Bg1 Bh3 Ng4 Nf2 Qb2 Qg5 Re7 Qc5 Bd8 Qac7 Re6 Qe7 B8c7 Qd8 Nf4+ Kd2 d3 Re4 Ne5 Ba5 Ncd4+ Ke3 d2 Bc3 Nef7 Bb4 Nh6 Re5 Bg4 Ke4 d1N Bd2 Be2 Nd3 Ng4 Nf1 Nc2+ Kf5 Ndc3 Ng3 Bf3 Rd5 Re3 Re5 Re2 Re3 Ncd4+
3n2BK/3q4/B3Rq2/2n1R2n/qbb1qNQ1/Nrn2b1b/Q2P3P/r2k3n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 e4 Ke7 Ke2 Kd6 Ke3 Ke5 a4 g5 a5 c5 a6 b5 a7 f5 Nh3 f4+ Ke2 Kd4 e5 f3+ Ke1 c3 e6 c2 e7 c1Q e8Q f2+ Ke2 g2 Ra3 g1Q Qc6 g3 Kf3 g4+ Kf4 g2 Qcf3 g3 Qfb3 c4 Qdc2 c3 Ra4 Qe1 Qf7 Nc6 Qcb3 c2 Qe7 c1N Kg5 Nd3 Kg6 Qe4+ Kf7 Nc5 Qh4 Nf6 Qd1 Nh5 Na3 Qd7+ Qe7 Bb7 Ra6 b3 Qf3 b4 Bd3 f1B Qg4 b2 Qe2 b1N Qd1 b3 Qe1 b2 Nf4 Nc3 Bc4 b1B Ra5 Bbd3 Nb1 Qf2 Bb3 g1Q Bd5 g2 Rb5 Bc4 Qd1 Rh6 Kg8 Nd8 Qf3 Rb6 Rb2 Rb3 Qh3 Qh4 Qf3 Qgf2 Qg4 g1N Kh8 Bh3 Qf7 Nge2 Na3 Neg3 Re1 Nh1 Qfe6 Qff3 Qa6 Qd1 Bg8 Qa1 Rbb1 Qhe7 Re2 Qa4 Rbe1 Qed7 Ng2 Kd3 Qa5 Qee8 Re6 Bf3 R1e5 Qg6 Qa6 Qe4 Qa5 Ke2 Nf4+ Kd1 Qa6 Rab8 a8B Rb1 Qa5 R8b3 Bb7 Qb2 Ba6 Ra1 Qb6 Ncb7 Qe3 Bb4 Qd3 Nc5 Qb1+ Qc1 Qa2 Qcc2 Ng2 Qed4 Nf4 Qce4 Rh6 Qf2 Rb6 Qh4 Rbe6 Qf6+
rR2b3/1KN5/1bB2rpr/2n4R/1QQBnP2/r1br2q1/1Pn2bb1/4Nk2 w - - 0 1 legal: proof: d4 f5 a4 c5 a5 cxd4 a6 bxa6 Nf3 a5 Ng1 a4 g4 h5 e4 hxg4 c3 dxc3 Qc2 fxe4 Qe2 Na6 Qd1 Nb8 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kc5 d5 h4 a5 f4 e5+ Kb5 g3 h5 a3 h6 g2 h7 a4 Be2 g6 Bd3 d4 Rh3 a2 Nf3 Kg4 Rh5 Kg3 Qd2 g1R Qe1+ Kg2 Rf5 e3 Rf6 c2 Na3 e2 Ng5 e4 Qb4 e1B Qc5 e3 Rf5 e2 Be4+ Kf1 Be3 c1R Bd3 Bf2 Nb1 a3 Qc4 Nf6 Ne6 Rg3 Rg5 Na6 Kc6 Bc5 Be4 d3 Nc7 e1B Qd5 d2 Re5 d1B Qd6 Ba4+ Nb5 Bh3 Rg5 Bg2 Qd4 Bb6+ Kb7 Bc3 Bd5 Ne4 Nc7 Be8 Rh5 Qg5 Bc6 Rf8 h8Q Rf6 Qd5 Rf3 Qdg8 Qg3 Bd4 Rd3 Qc4 Re1 Qhg8 Re2 Qge6 Red2 Qc8 Rd1 Qb8 Nac5+ Kc8 Ke2 Nd2 Rh1 Rd1 a1R Nf3 a2 Ne1 Kf1 Rc1 Rb1 Rd1 a1N Rd2 Nc2 Rd1 Ne6 Kb7 Rba1 Rc1 R1a3 Ra1 Rb3 Raa5 Ra3 Rab5 Bf7 Qf8 Be8 Qfb4 Rh3 Rbd5 Rh4 Rd8 Rh3 Rb8 Rh4 Rd5 Rh6 Rh5 N6c5+
2nb2b1/6Pn/2QN1qK1/Bn5B/P1Rpnr2/1r5k/2Nb1R2/bnqQr3 w - - 0 1 legal: proof: c4 f5 b4 c5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 c5 bxc5 Qa4 c4 Qd1 c3 Ke2 Kf7 f4 Kf6 g4 h5 a4 d5 g5+ Kf5 g6 Kg4 g7 e5 f5 b5 f6 e3 Kd3+ e2 f7 e4+ Kc2 b4 Be3 b3+ Kc1 b2+ Kc2 h3 Bf4 h4 Bh6 d3+ Kb3 d2 Kc2 e3 Kd3 c2 Qc1 d1N Na3 e1B Rh2 b1N Re2 h2 Qb2 h1Q Qe5 c1B Rea2 h3 Nf3 h2 Bg2 d4 Ke4 e2 Qb5 Bed2 Qc4 e1R+ Qe2 Ne7 Be3 Rh3 Qf2 Be6 Rc2 Bb2 Rc4 Nc8 Ke5 Ndc3 Nc2 Nb5 Qg1 Be7 f8Q Bg8 Ra2 Ba1 Qf6 Nd7+ Ke4 Qf8 Ng5 Bd8 Qc6 Qf6 Nf7 Nf8 Nd6 Nh7 Bf3+ Kh4 Qf1 Rg3 Qe2 Kh3 Qd1 Qg1 Rb2 h1N Bh5 Ra7 Ra2 Rf7 Rb2 Rf1 Bf2 Rb3 Be1 Nf2+ Kd5 Qh6 Ke5 Rf4 Ra2 Ne4 Rb2 Be3 Ba5 Bd2 Ra2 Re1 Rb2 Rh4 Kf5 Qge3 Ra2 Qhf4+ Kg6 Qe5 Qb6 Rf4 Qc6 Qc3 Ne3 Qc1 Rb2 Bb4 Rf2 Bd2 Nc2 Qf6#
2N1b1bn/1R1P2r1/b1qbnKp1/1R1Q2Bq/4q3/qQ6/3rP3/k3rnNB w - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 g4 h5 f4 exf4 a3 bxa3 Bh3 hxg4 Bg2 Bc5 Bf1 Bf8 Kf2 Kd7 h4 Ke6 d4 Kd5 h5 c5 h6 b5 h7 f5 Qb3 a2 Bh3 g3+ Kf3 g2 Bb2 g6 Qc3 b4 Qa3 b3 Rh2 c3 Rh1 Kc4 d5 c2 d6 c1R Qa7 Qh4 Qg7 Re1 Qd7 Ra7 Be5 b2 Bg7 Kb3 Bg4 c4 Bh3 c3 Qd8 c2 Qg5 c1Q Qe7 Qh5+ Bg4 Nc6 Qc7 Nd8 Nc3 b1B Qc5 Kb2 Be5 Ne6 Qf2 Ba6 Nh3 g1Q Qg2 Nh6 Qf1 Rg7 Nf2 Nf7 Nh3 Qd4 Nd5 Qc6 Bf6 Be7 Rh2 Rd8 Qh1 Nh8 Bg5 Bbd3 Ng1 Bdc4 Rd1 a1Q Rb1+ Ka2 Rb7 Qe4+ Kf2 f3 Kg3 f2 Bf3 f1B Nb6 Bf8 Nc8 Bh3 Rf2 Bg4 Qh3 Qc1 Bh1 Ka1 Rf3 Qb2 Rfb3 Qa3 Qg2 Bf3 R3b5 Bg4+ Qf3 Be7 Qb3 f4+ Kf2 f3 Kg3 Nf7 h8Q f2 Qf8 Nh8 Qf5 f1N+ Kf2 Nc7 Qc5 Bd7 Qd5 Be8 d7 Ne6 Na7 Ra8 Nc8 Ne3 Kg3 Bd6+ Bf4 Qhf3+ Kh4 Nf1 Ne7 Rb8 Nc8 Rd1 R7b6 Qd4 Qc3+ Ka2 Ra5 Nc7 Kg5 Re1 Qe6 Qde4 Kf6 Qh5 Bg5 Rb7 Qb4 Ka1 Qf5 Bg8 Qd5 Ne6 Qa4 Qcc4 Rb2 Rc7 Rb7 Qc1 Qab3 Rc2 Rc5 Rd2 Rcb5 Qc6
2nb4/4n2R/P1N2B1b/2Nk1q1p/3Bb3/1r2rn2/1KbrrPQb/1Q3Rn1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 h4 fxe4 g4 a5 g5 axb4 h5 Ra3 g6 Ra4 Be2 hxg6 h6 Ra8 Bh5 gxh5 Kd2 Kf7 c4 Ke6 Kc2 b5 a4 d5 a5 g5 c5 g4 h7 g3 c6 d3+ Kb2 b3 a6 e3 c7 g2 Rh2 e2 Ra2 e1B Bg5 b4 Bh6 d2 Ra5 d4 Nf3 g1B Rd5 d3 Rg5 Nc6 Ne5 Qd5 Rhg2 Bh2 Qe2 d1R Qf3 d2 Qg3 Na7 Qf3 Bb7 Qc3 Re8 Ng6 Qf5 c8Q+ Kd5 Qb8 e5 Qc2 e4 Qbc7 e3 R2g4 e2 Ne5 Ne7 Nd3 Nac8 Ka1 b2+ Ka2 b3+ Ka3 Rg8 h8B Rg6 Rh4 Re6 B6g7 Re3 Bc3 Bh6 Nc5 Bc6 Kb4 Ba4 Na3 b1R Bhd4 b2 Qd3 Bc2 Qg3 Bg1 Qb5 Rd8 Rh1 Bh2 Qg4 Kd6 Qg2 Rdc1 Bg7 d1N Bd2 Nc3 Rg1 Be4 Kb3 Rc2 Bc1 Bd2 Bh8 e1N Rg7 Nf3 Rf1 Ne2+ Qd3+ Kc6 Nc4 Neg1 Rh7 Ba5 Bf6 Rce2 Ka2 Rd4 Ne5+ Kd5 Nc6 Bd8 Qc2 Rdd3 Bd2 Rb3 Bdc3 Rd1 Bcd4 b1B+ Ka1 Rdd3 Qc1 Bc2 Qb1 Rdd2 Ka2 Rbc3 Kb2 Rb3+
QqBq2q1/Pn5b/bB3p1k/2nr4/bQb1qR2/2K2bRr/2P5/1N2N1b1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 f4 gxh4 f5 a5 f6 axb4 e3 dxe3 Be2 exf6 Bc4 f5 Bf1 f4 a4 h5 g4 d5 a5 b5 a6 h3 a7 e2 Kd2 e1Q+ Kd3 d4 g5 f6 g6 h4 g7 Kf7 Bb2 Kg6 Qg4+ Kh6 Qe6 f3 Qg4 b3 Nd2 h2 Ba3 f2 Bc1 b4 Ngf3 b2 Kc4 b1Q Ra3 d3 Qg2 b3 Ng5 h3 Nde4 d2 Ra6 d1B Rc6 b2 Qg4 Qa2+ Kb5 b1Q+ Bb2 Ne7 g8Q Na6 Nc3 Nf5 Qf7 Bf3 Ne6 Qe4 Rc4 Nc5 Kb4 Ba6 Qb7 Nd6 Qe7 Ndb7 Bd3 f1B Rg1 h1B Qg8 h2 Ng5 Bhg2 Rd4 h1B Bc4 Rh7 Be6 Bfc4 Bc8 Bh3 Qd5 Bd7 Rg3 Ba4 Qed6 Rd7 Qb8 Rd6 Qc6 Rd5 Qf4 Qg1 Nb1 Qh2 Kc3 Bd6 Qd2 Bf4 Ba3 Be3 Bb4 Rb8 Ba5 Bg1 Bb6 Bhg2 Qe8 Bh3 Qf4 Bf5 Qg4 Bh7 Qc6 Bfe2 Nf3 Ra8 Ne1 Bf3 Bd7 Rc8 Be6 Rc7 Bc8 Rg7 Qf4+ Rgg5 Qb8 Rh5 Qa8 Rh3 Qb5 Bd1 Qb4 Bf3 Rg7 Qb8 Rg3 Qe6 Rf4 Qeg8 Qb5 Qa3+ Qb3 Qc1 Qb4 Qe3+ Kb2 Qee8 Kc3 Qe4
3nq3/BPbp4/3r3R/bQPR2p1/2bNQKn1/q1b4r/kn1NB3/1b5r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 Kf3 Kd6 g4 Kc5 b4+ Kc4 e4+ d3 e5 a5 g5 h5 c3 f6 b5 h3 e6 h4 e7 a3 e8Q a4 b6 h2 g6 a2 g7 h3 Be3 a3 Bd4 Bb7+ Kg4 f3 Qd2 Kb3 c4 f2 c5 Ra6 Qde1 d2 Qg6 d1N Be5 Qe8 Qh5 Be4 b7 Nh6+ Kg3 Ng4 Qe2 Nc6 Qh6 Nd8 Qed2 Nb2 Bf4 Rd6 Bd3 f1B Bb5 Bc4 g8Q Be7 Nc3 Bb1 Nge2 Bf8 Rd1 h1R Qh4 h2 Qd3 Bh6 Be5 Bd2 Ne4+ Bc3 Qgg5 Rh6 Qdd2 Ba5 Kf4 Rh7 Qhe1 Rh3 Qb4+ Kc2 Ba4+ Rb3 Rd5 Nd3+ Kf5 Rg1 Nd4+ Kb2 Nd2 Rc6 Qd1 Bc2 Qg7 h1Q Qf7 Qh3 Bb8 Rd6 Qe7 Qe3 Rc1 Bb1 Nf1 Qg3 Rc3 Rh1 Ba7 Bc7 Qh7 a1B Qb5 a2 Qd2+ Ka3 Qg6 Bb2 Qdh6 a1B Qhg5 Ka2 Nd2 Ba3 Qh7 Bb4 Qhg6 Ra3 Bd1 Bba5 Be2 Qge3 N2b3 Qc1 Nd2 Rb3 Qh7 Qa3 Qhg6 Ndf2+ Kf4 Nd1 Rh3 Rd3 Rf3 B1c3 Rh3 Nb2 Rh6 Rdh3 Qe4 fxg5+
k4q1q/p1b2PPb/4r2n/2r1q1R1/2NprB2/4Q2R/r2nK3/2brNQ1B w - - 0 1 legal: proof: d4 f5 a4 c5 a5 cxd4 a6 bxa6 Nf3 a5 Ng1 a4 h4 g5 e4 gxh4 b3 axb3 Qf3 fxe4 Qe2 Qb6 Qd1 Qd8 c4 h5 f4 d5 g4 Kd7 c5 Kc7 c6 e5 g5 h3 f5 h2 g6 h4 g7 d3 f6 e3 f7 e2 Qc2 h3 Bd2 d4 Be3 d2+ Kf2 e1B+ Kf3 d1R Bf2 b2 Bc4 e4+ Ke2 e3 Bd3 Na6 Ra3 Kb8 Qc1 Nh6 Kf1 Bd6 Bf5 Bc7 Bd7 Qf8 Qd2 Nc5 Rd3 Nb3 Qa5 Bd2+ Be1 e2+ Kf2 Bc1 Bc3 e1R Bd2 Re4 Na3 b1R Qc3 Rb2 Rg3 Ra2 Qe3 Ba6 Bg4 Bd3 Nf3 Bc2 Rhg1 h1Q Ne1 h2 Rh3 Re6 Nc4 Qd5 Rg2 h1Q Bf3 Bh7 Rg5 Qh2+ Kf1 Qde5 Bh1 Rg8 Qf2 Rh8 Be3 Nd2+ Ke2 Qb4 Qg2 Rhe8 Qf2 Qf8 Qg2 Qhg3 Qe4 Qh8 Bf4 Qa3 Qe3 Qaf8 Rgg3 Rd8 Rg4 Rd5 Rg5 Ba5 c7+ Kb7 Bg3 Rae8 Bf4 Ka8 c8Q+ Qb8 Be4 Bc7 Bh1 Re4 Qg4 R8e6 Qf3 Rc5 Qg2 Qbe8 Qf1 Qee7 Qf2 Qf6 Qf1 Qe5
q5B1/q5b1/Nrq4Q/nP2r1pn/Qbnp3P/1RB3k1/2R5/qr1N1K1b w - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 g4 h5 f4 exf4 c3 dxc3 Qd6 hxg4 Qd5 Rh6 Qd1 Rh8 b4 Ke7 e4 Kf6 h4 Ke5 b5 d5 Rh3 a5 Ba3 f5 Qe2 g5 Rf3 g3 Qa2 c2 Bc4 c1Q+ Ke2 g2 Bd3 Ra6 Bb4 a3 Be7 a4 Re3 f3+ Kf2 Kf4 e5 Bb7 e6 Nc6 Be2 Rb6 Rb3 Nf6 Qb2 a2 Qc3 a3 Bf1 Nh5 Bf6 Qa8 e7 Na5 e8Q Bb4 Qec6 Re8 Qd3 Re5 Qd6 Qc6 Qc3 Kg4 Bd3 f4 Ne2 g1B+ Kf1 f2 Kg2 f1N Nd2 Bd4 Ne4 Nd2 Qc2 Ndc4 Rc1 a1Q N2c3 f3+ Kf1 a2 Nd1 f2 Nc5 Kg3 Bh7+ Bdc3 Qe4 Qa7 Bg8 Qa8 Ke2 f1R Rc2 Rg1 Na6 Rh1 Nb2 Qg1 Nd1 a1Q Bh8 Qgc5 Qh6 Qe7 Nb2 Rb1 Nd1 Qec7 Bg7 Qcb8 Kf1 Qba7 Rbb2 Bf8 Bf6 Bcb4 Qd4 Bg7 Qe4 Re7 Bc3 Re5 Rb3 Bc5 Qe2 d4 Rc1 Qe6 Qa2 Bb4 Rc2 Bh1 Qa4 Qec6
4Q1n1/2K4p/Qp1nrb1r/B3B1RN/2N1b3/qP1q2PR/n1k2rq1/3qb3 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 c3 g5 d5 gxh4 b3 a4 d6 a3 Qd3 cxd6 Qd1 d5 Qe2 d4 Qb2 axb2 Be2 d3 Bd1 Bg7 Bc2 dxc2 Nd2 Bh6 Nb1 Bf8 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kd5 e5 a4 e3 f4 e4 c4 e2 a5 e1R c5 h3 g3 h2 a6 e3 c6 e2 c7 Be7 a7 Bf6 Kd6 Ke4 f5 Kd3 Bg5 c1Q Nc3 b1N Na4 Na6 Nb6 Nb4 Ra3 Na2 Ra4 Nd2 Rb4 Kc2 Nc4 Qa3 Bf4 Ne4+ Kd5 b6 Nh3 Nd6 Rb5 Ba6 c8Q Bb7+ Qc6 Rc8 a8Q Rf1 Qa4 e1B Be5 Rf2 Nf4 Ba8 Qb7 Rc6 Qba6 Bb7 Nh5 Ba8 Rg1 h1Q+ Rg2 Qf1 Rh2 Qg1 Rh3 Qg2+ Kd4 Nh6 Rd5 Re8 Ra5 Ng8 Rb5 Bg5 f6 Re6 f7 Bf6 f8B Qe8 Bh6 Qg6 Bd2 Qf5 Ba5 Bb7 Nd2 Qg6 Nf3 Ba8 Kd5 Qd3+ Bd4 Rc4+ Qb7 Qdf1 Nf4 Nf7 Rc5 d6 Kc6 d5+ Kc7 Nd6 Ba1 d4 Nd2 d3 Qa6 Bc6 Rg5 Rb4 Nf3 d2 Be5 d1Q Nd2 Qd3 Q4b5 Rd4 Nc4 Ba8 Qe8 Bd5 Nh5 Rh4 Ng7 Rh6 Nh5 Be4
1Rb3R1/3P1K1k/4bBp1/1Bb4n/1Nbpb3/P3n1rN/2qQ1qbr/1Q2b3 w - - 0 1 illegal: No possible last move, all moves rejected
6Qq/r2R1P1K/4bNNp/nbrrb3/QBn1nP1r/2p1k3/4q3/2RbB3 w - - 0 1 illegal: Other
1Nn2q1B/3Pr2q/2pR4/8/1Q2P2r/bNrp4/1Qb1n1p1/Brr1kbRK w - - 0 1 illegal: No possible last move, all moves rejected
nn3b2/2b3n1/5Nkq/1p1Bn1B1/R2P1Qbp/QbN3Rr/2Ppr3/1q4K1 w - - 0 1 legal: proof: h4 c5 e4 g5 d4 gxh4 b4 d5 f4 dxe4 b5 e5 b6 exf4 Kf2 c4 Qd3 cxd3 Ke1 axb6 Nh3 b5 Ng1 b4 Kf2 h5 g4 b5 a4 f5 a5 Kf7 g5 h3 a6 b3 a7 f3 Ra4 d2 Rc4 f4 Be2 e3+ Kf1 f2 Bd3 b2 Bh7 h2 Bd3 e2+ Kg2 e1B Be2 f1B+ Kf3 Bg4+ Ke4 f3 Ke3 f2 Rc7+ Ne7 Nc3 b1Q Bf3 Qd6 Ba3 Bc4 Ne4 Kg6 Ne2 Nec6 Rg1 h1N Nf6 Ne5 Bd5 Ng3 Nc3 Bb3 Rc4 h4 Bc5 Nh5 Rg3 Ng7 Ra4 Qe6 Be7 f1N+ Ke4 Ne3 Kf4 Nd1 Bd8 Nb2 Ke3 Bh3 Ke2 Bg4+ Kf1 Nbc4 Kg1 Nb6 Be7 Qg8 Bd8 Qh7 Be7 Qh6 Bd8 Na6 Be7 Re8 a8Q Rg8 Qa7 Nb8 Qa6 Kf5 g6 Na8 Qa5 Ned7 Bd8 Re2 Qb4 Ne5 Qa3 Bc5 Be7 Re8 Bd8 Bf8 Be7 Rh2 Bd8 Rh3 Be7 Ne6 g7 Kg6 g8Q+ Ng7 Qe6 Nc4 Qe3 Ne5 Qf4 Bf2+ Kg2 Be3 Qf1 Bf4 Kg1 Nf7 Bd8 Bc7 Be7 Ne5 Bd8 Qb2 Qf4 Qb1+ Kf2 Qa1 Nh7 Nf3 Bg5 Qb1 Nf6 Re1 Kg2 Ne5 Kf2 Qb2 Kg2 Re2+ Kg1 Qb1+
1k2rBnr/2R4r/1pp5/1b1p1B2/Nq1NqrK1/b4P2/p3QP1Q/2n3Rr w - - 0 1 illegal: Other
7Q/3pkr2/p1B1p3/p1P1Pr1Q/q5Rn/nn4bK/NppR1Nb1/2B1r3 w - - 0 1 illegal: No proof kernel
b2r1n2/1PN1q1NR/K1NRR2b/2P1q3/2bn3Q/1kb1rr1n/r7/1B5b w - - 0 1 illegal: No possible last move
4q1bq/2R3bq/n3PN1k/b2rQP1q/4b3/5bb1/3q1B2/N1KnN1RR w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 h5 g4 hxg4 d5 b5 d6 b3 Qd4 b4 Qd1 cxd6 Na3 d5 Nb1 d4 e4 f5 Bg2 e5 Na3 Ra5 Qd2 Rb5 axb5 Nh6 Qc3 Ng8 Nb1 d3 Qd4 exd4 e5 Rh7 Ba8 Rh8 Be4 fxe4 Kd2 Kf7 f4 Kg6 c4 d5 h4 b2 h5+ Kh6 b6 g5 c5 b3 c6 e3+ Kd1 g3 b7 g4 c7 e2+ Kd2 e1B+ Kd1 g2 Ra5 d2 Ra6+ Nf6 Rd6 g3 Na3 b1Q Rh3 b2 Rd7 Qe8 Rh1 Ne4 Rh3 Na6 b8Q Bg7 Qb4 Nf2+ Ke2 d3+ Ke3 d1B Rd8 d2 Qb5 Be6 c8R Bf3 Rh1 d1Q Nc2 Bg8 e6 Ba5 Na1 Qh7 f5 b1B Rc7 Bbe4 Bd2 Qc2 Be1 Qd1 Qb2 Qc2 Qe5 d4+ Kf4 d3 Ke3 d2 Rdd7 Bd1 Nf3 g1Q Rd4 g2 Rdd7 Bf6 Rg7 Qh2 Rg5 g1B Rg3 Nh3+ Bf2 Bg7 Ne1 Bdf3 Rg5 Nf4 Rg3 Nd3 Rg5 Qh3 Rg2 Bh2 Rgg1 Bg2+ Ke2 Bg3 Ke3 Qb2 Ke2 Qd4 Kd1 Bef3+ Kc2 Nb2 Kb1 Nd1 Kc2 Kg5 h6 Qhh5 Kb1 Nc3+ Kc2 d1Q+ Kb2 Qe2+ Kc1 Qdd8 Rc5 Nd1 Rc7 Q7g6 h7 Kh6 Rd7 Be4 Rc7 Bgf3 Qf6 Bf7 Qe5 Rg8 h8N Qh7 Ng6 Rf8 Qd4 Bg8 Ne5 Rf7 Qd6 Rd7 Qd5 Rd6 Nd7 Qdh4 Qe5 Rd5 Nf6 Qh8 Nh7 Qhe7 Nf6 Q7f7 Rd7 Qg6 Rf7 Qgh7 Rc7 Qd2#
4Q3/1R1r3q/1rb2kNr/KB1nNP1q/1bP2r2/B1p3r1/n3r3/1Nb1B3 w - - 0 1 legal: proof: e4 a5 a4 f5 h4 fxe4 h5 b5 axb5 g6 Nf3 gxh5 Ng1 h4 c4 d5 b4 axb4 b6 cxb6 Ra7 d4 Ra3 b5 Rc3 dxc3 f4 Kf7 d4 e5 g4 h5 f5 e3 d5 e4 g5 e2 d6 b3 d7 b4 g6+ Kf6 g7 b2 Rh2 b3 Nf3 h3 Nbd2 b1R Rf2 b2 Rg2 h4 Ng1 h2 Rg3 h1R Rg2 h3 Qc2 h2 Qb3 Rh7 Rf2 Bb7 Ndf3 Qe8 d8B+ Ne7 Qb4 Qh5 Qa3 Bc6 Nd2 Na6 Qa4 Nb4 Ngf3 Na2 Ne5 Ra7 Qb5 Rh6 Qb8 Ra1 Nb1 Rg1 Bc7 h1Q Qe8 Nd5 g8N+ Kg7 Rh2 Rg3 Ne7 Kf6 N7g6 Bb4 Bd2 Rb7 Bd6 Rd7 Rh4 Qh3 Bg2 Qh1+ Kf2 e1R Rh2 Ree3 Be1 Ref3+ Ke2 e3 Kd3 e2+ Kc2 Rf4 Rh3 Qh2 Kb3 Qh1 Nd2 Rc1 Nb1 Rc2 Be4 Ba5 Ba3 Bb4 Bf2 e1B Bf3 Bb7 Ka4 Bd2 Be1 Bc1 Kb5 Bc6+ Ka6 Bd6 Ka5 Re2 Be4 Bc5 Bc2 Bd6 Ba4 Qh2 Bb5 Qh1 Nd2 b1R Rh2 Rb2 Nb1 Bc5 Ba4 Rb6 Bb5 Ree3 Rc2 Re2 Rb2 Bb4+ Ka4 Bc5 Qb8 Ra6+ Kb3 Qg5 Ba4 Rhh2 Qe8 Qh4 Qg8 Qh7 Qe8 Bb7 Bc6 Rh6 Ba4 Qh5 Bc6 Rb6+ Ka4 Rb3 Ka5 Ba8 Ba4 Rb8 Rb6+ Bc6 Bb5 Be7 Ra6 Rb6 Ra7 Bf8 Rb7 Bb4+
2N2r1R/3n4/4K1NQ/1PqPn3/2rpnn2/2B2q2/3NBkB1/rb2bqr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 a4 b5 axb5 e5 Ra4 exf4 Ra3 Nf6 Ra1 Ng8 c4 axb4 c5 d6 Ra6 dxc5 Ra4 Nh6 Ra1 Ng8 d4 Bg7 d5 Bh6 Ra2 Bg7 Rd2 Bf8 Rd4 cxd4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 f5+ Kd3 Ke5 Kc4 Ke4 e3 h5 g5 f3 g6 f2 g7 f4 Rh2 h3 Rh1 h2 Bh3 f1R Bb2 b3 Qe1 h4 Qa5 f3 Be6 h3 Bg4 f2 Bd1 Nd7 Bg4 Ne7 g8N Rc1+ Qc3 f1Q+ Ne2 Nc6 Ne7 Qb6 Bh5 Ra1 Bg6+ Kf3 e4+ Kf2 Rg1 h1Q e5 h2 e6 Qf3 Nf5 h1N e7 Ng3 e8B Ne4 Rh1 Bd6 Rh6 Bg3 Nd6 Rf8 Rh8 Qa7 Nd2 Rc2 Ba3 b2 Bb4 b1R Bh7 Rd1 Bh5 Rdc1 Bf5 Bh4 Bh3 Nce5+ Kb3 Rd1 Nf4 Rdc1 Ba5 c4+ Kb4 Qc7 Qa3 c3 Ng6 Qa7 Bg2 Qc5+ Kb3 Re1 Bb4 Rcc1 Qa6 c2+ Bc3 Rcd1 Qb6 c1N+ Kc2 Ne2 Kb3 Nf4 Qc6 Qg3 Be2 Rdc1 Qb6 Qf3 Qa6 Nb8 Qb6 Bf5 Nc8 Nbd7 Qf6 Qh1 Qg5 Rg1 Qh6 Rab1+ Ka4 Rb4+ Ka5 Rc4 Ka6 Ra1+ Kb7 Nc6 Kc7 Qhh3 Bh1 Qf1 Bg2 Ke3 Rh7 Be1 Rh8 Kf2 Nb1 Rf6 Nd2 Nce5+ Kd8 Nd6 Ke7 Bb1 Bh3 Rf8 Bg2 Nfd3 Ke6 Ne4 Qh1 Rb4 Qh7 Rc4 Qh6 Nf4+
4b2R/p2k2Np/rRrqq1b1/2nRP2P/2q2bN1/Q5Bq/4r2n/K6N w - - 0 1 legal: proof: b4 c5 a4 b5 c4 bxc4 d4 cxd4 g4 f5 Bg2 Nh6 Bd5 fxg4 b5 e5 b6 e4 Bxe4 Ng8 Bc2 Be7 Bb3 cxb3 a5 Bf8 a6 Bxa6 Nf3 Bb7 Ng1 Bc8 Kd2 g5 f4 d5 e4 b2 Kc2 d3+ Kc3 d2 h4 g3 f5 g2 f6 d4+ Kc2 d3+ Kb3 g4 Ka2 g3 f7+ Kd7 b7 Nh6 h5 Qh4 Na3 b1B+ Kb2 Qh3 Ne2 g1R Ra2 g2 Nd4 Bd6 f8R Ng4 Nc4 Na6 Ka1 Bf4 Ra5 Nh2 Nb2 Nc5 Qf3 d1Q Ne6 d2 Nd3 Qe2 Ng7 d1Q Nf2 Qd6 Qa3 Qc4 e5 Bg6 Ra6 Re1 Rb6 Re2 Rd1 g1Q Rd5 Rg8 Nh1 Qgg4 Re8 Qe6 b8N+ Kc7 Bd2 Bd7 Be1 Bc6 Rf8 Bce8 Nd7 Rc8 Bg3 Kd8 Nf6 Rc6 Ng4 Kd7 Nf5 Rg7 Rh8 Rf7 Ng7 Rf6 Rb4 Ra6 Rb6 Qg8 Rd1 Qd2 Rb8 Rfc6 Rb6 Qd6 Rd5 Qe6
R2B2B1/nB1PP3/1n2K1k1/Q2b1n2/1rR1b3/p1R2r2/n1p1qb1b/Nn6 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 b5 d5 Na3 dxc4 Nc2 b6 Nb4 axb4 a5 bxa5 Qb3 a4 Qc2 b3 Qxb3 a3 Qa4 Kd7 Qd1 Ke8 Kf2 c5 Kf3 f5 g4 Kf7 e4 h5 d4 h3 b6 c3 d5 h2 g5 h4 e5 c4 e6+ Kg6 b7 h3 d6 c2 d7 c3 Qe1 Nh6 Qh4 Ra4 Bg2 Rb4 Qg4 Bc5 Bf1 Qe8 Qh4 Nc6 b8R Na7 Bd2 c1B Bc4 c2 Qe1 Rf8 Rb7 Bf2 Rb5 Bb7+ Bd5 Bc6 Ke2 f3+ Kd3 f4 Bc4 Nf5 Ra5 Bb2 Ne2 Be5 Rf1 h1B Nc1 h2 Nb3 Bg2 Ba6 h1N Rb1 Nhg3 Rg1 Ne4 Bb7 Nc3 Na1 Na2 Rb3 Bc5 Bc1 f2 Qe3 f1N Qd2 f3 Qe1 f2 Qd2 Nd6 Qe3 Ng3 Qe2 f1N Qh5+ Kf5 Rc3 Nac8 Ra8 Na7 g6+ Kf6 g7 Bf2 g8B Ndc8 Bf4 Nd2 Bg5+ Kf5 Rh1 Nb6 Rh4 Nb1 Rhc4 Rf7 Be3+ Kf6 Bg5+ Kg7 Be7 Bc7 Qb5 Kg6 Bd8 Rf4 Qa6 Nf5 Qa4 Bgd5 Qa5 Rf3+ Ke2 Ne3 Kd3 Bd6 Kd4 Bh2 Kc5 Nf5+ Rd4 Ng3 Kd6 Qe7+ Ke5 Nf5+ Rf4 Qc5 e7 Qb5 Rb3 Qe2+ Re3 Bhg1 Rc4 Be4 Rec3 Bh2+ Ke6 Bcd5+
3B1RB1/Np4Nn/1P1nqp2/B1p2p1p/5rQ1/p3Pb2/5q2/1q1N1Kbk w - - 0 1 legal: proof: c4 g5 f4 d5 h4 gxh4 a4 dxc4 b3 e6 f5 exf5 Ra2 Na6 Ra3 Nb4 Ra1 Na2 b4 Qd7 Nf3 Qxa4 Ng1 Qd7 Qc2 Qd3 Qd1 Qd8 g4 a5 g5 f6 g6 Kd7 Na3 Rb8 Rb1 Ra8 Rb3 cxb3 Rh3 Ra6 Rh1 Re6 Bh3 Re7 Bf1 Rf7 gxf7 Qe7 Nf3 Qe8 Ng1 Qd8 d4 Ke6 b5 Kd5 b6 Ke4 d5 h3 d6 a4 d7 h2 Be3 b2 Bc5 b1Q Bf2 Bc5 f8N Nh6 Nb5 a3 Qc1 Qe7 d8B Be6 Qd1 Nc3 Qc1 Nf7 Qd1 Nd6 Nd4 Bd5 Nh3 Qe6 Nb5 h5 Rg1 h1Q Na7 Qf3 Rg8 c6 Bh4 Bg1 e3 c5 Bc4 Rh6 Bf2 Rg6 Kf1 Rg4 Bb3 Qg3 Be1 Qh4 Qd4+ Kf3 Nf2 Rf4 Nd1 Nce4 Ba5 Ng5 Qa4 Nh7 Qc4 Qc8 Ne6 Qg3 Ng7 Qe6 Rf8 Qh2 Ke1 Kg2 Qe2+ Kh1 Qg4 Bf3 Kf1 Qe8 Bf7 Qe6 Bg8 Qf2#
n2b1n1R/rP1bQ2r/1B2q3/2b5/4NKb1/BrP1BNrN/5r2/1q1kn1b1 w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 Bd2 e5 Bc1 e4 b4 h6 g4 Qa5 f5 Qd8 Bh3 Na6 Ra3 Nb8 Rf3 h5 Rf4 gxf4 g5 Rh6 Bg4 hxg4 Qd3 Rh5 Qd1 Rh8 Ke2 Kf7 h4 d5 h5 a5 h6 e5 b5 d3+ Kf2 e3+ Kg2 d2 f6 Ke6 g6 Kf5 g7 Ke4 h7 f3+ Kg3 a3 c3 Kd3 b6 e2 b7 e1B+ Kh2 f2 Kg3 f1R+ Kg2 g3 f7 d4 Qe2+ Kc2 Nf3 d3 Qf2 e4 Nh2 a2 Bb2 a1R Qe2 a4 Bc1 a3 Rg1 a2 Nf3 e3 Nh2 Rf2+ Kh1 Bd7 Rf1 g2+ Kg1 Qe7 Nf3 Ra3 Kh2 g1B+ Kg3 Nf6 g8N Rb3 Nh6 Qe6 Ba3 Nd5 Nf5 Bc5 f8B Nc7 Nh2 Na8 Ne7 Rg8+ Qg4 d1B h8B d2 Nf3 e2 Ng6 Rg7 Kf4 Rh7 Bb4 Kc1 Bd4 Kc2 Qg5 Kc1 Na3 Rab1 Qe5 a1R Nc4 Ra7 Be3 R1b2 Qe4 Rg2 Ba3 Bh4 Bh6 e1N Nd6 Bd8 Rf2 Rg3 Rh2 Be2 Bg7 Kd1 Bgd4 Ra2 Qe5 Rab2 Ne4 Ra2 Qf6 Rab2 Qe7 Ra2 Nfe5 Bg4 Nf3 Rg7 Rh4 Bb5 Qe8 Ke2 Nh8 d1Q Rh7 Qb1 Qe7 Kd1 Nf7 Bcb6 Ned2 Nd7 N7g5 Nf8 Rh8 Rh7 Nh3 Bd7 Ne4 Rf2 Bdc5 Ba5 Bcd4 Bb4 Bb6 Bc5
n6n/BB1nn1r1/2p3RR/1P1n2qQ/qb1K2P1/1b4rr/4R3/1q1NbB1k w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 h4 gxh4 f4 e5 Na3 exf4 Nc2 b5 Nd4 bxa4 Nb3 axb3 Kf2 Kd7 e4 Kd6 g4 Ke5 b5 a5 d3 h5 Be2 f5 Ra2 b2 Be3 b1Q Kf3 c3 Bd2 a4 Qf1 a3 Qf2 h3 Rc2 a2 Qh2 a1B Qf2 h4 Qe3 h2 Nh3 c6 Rd1 h1Q+ Kf2 f3 Qa7 f4 Qa5 Ra7 Rf1 Be6 Rb2 c2 Qb6 c1N Be3 Nd7 Bd1 Qg5 Bd2 Ne7 Rc2 Bc3 Re1 Bb3 Ra2 Ne2 Ng1 h3 Be3 h2 Nh3 Rh7 Qb7 Ra3 Ba7 Rg7 Qa8 Qc2 Qe8 Bb4 Qh5 Ba5 Rg1 Be1+ Kf1 Qc4 Nf2 Qd4 Bc2 Qa4 Nd1 f2 Bb1 Nd5 Rc2 Bfb4 Rd2 Nc7 d4+ Kf6 d5 Ke5 Bd3 Na8 Bb8+ Kd4 e5 Qe4 e6 h1R d6 Rh3 e7 Qeg6 Kg2 f1N e8B Nfg3 Kf3 Nf5+ Rg3 Ne7 Ba7+ Ke5 Bc4 Qb1 Bef7 Rh4 Bfe6 Rh3 Kg2 Ke4 Ra2 Nf6 Bc8 Nd7 Bb7 f3+ Kf1 f2 Rg2 Kf3 Rh2 Nc5 d7 Nf4 d8R Nd7 Rg8 Nfg6 Re2 Nh8 Bd3 Rf7 Rg6 Rg7 Rb2 Kg3 Ke2 f1N Rd2 Ne3 Bc4 Qc1 Kd3 Qb1+ Kd4 N3d5 Bf1 Kf3 Rhe2 Kg3 Ree6 Kf3 Rf2+ Kg3 Rff6 Kh2 Re2+ Kh1 Rfe6 Ba2 Rh6 Rg3 Reg6 Bb3
1k2b2b/4q2B/q3PrRr/bnN3n1/2bNbNBr/5b1p/QK5P/1n2B3 w - - 0 1 legal: proof: b4 f5 d4 e5 a4 exd4 c4 a5 g4 fxg4 c5 axb4 Nd2 b3 Rb1 Bxc5 Ra1 b2 Nb1 Bd6 Ra3 Be7 Rf3 Bd6 Rf8+ Bxf8 Kd2 d5 Kc2 Kd7 f4 g5 e4 c5 e5 Kc7 e6 h5 a5 b5 a6 h4 f5 b4 a7 c4 f6 b3+ Kd2 c3+ Kd3 g3 f7 g4 Qd2 c2 Na3 b1N Bh3 g2 Qd1 g3 Qe2 b2 Qf3 Bb4 f8N Rh6 Nc4 Ba6 Qg4 Nf6 Qe2 Ne4 Nh7 Ng5 Qh5 Nc6 Nf6 Qe7 Nf3 g1B Bg2 h3 Bd2 c1R Ne4 Rf1 Kc2 d3+ Kb3 d4 Nfe5 Rah8 a8B Ba5 Qg6 Kb8 Qh5 Rff6 Ncd6 Bc4+ Ka4 Na7 Bd5 Nb5 Bf3 g2 Be1 d2 Ng6 d3 Bg4 Bd4 Bc6 g1Q Nf5 Qf1 Nf4 Be5 Nc5 d1B+ Nb3 d2 Rg1 Bd4 Be4 Bf3 Nc5 d1B+ Bc2 Be5 Nd4 Be4 Qh4 Bdf3 Qf2 Bc6 Bh7 Be8 Qc2 Qd3 Qb3 Qe2 Qa2 Rh4 Bc2 R8h6 Bh7 Qd3 Ndb3 Qdd6 Nd4 Qa6 Rg2 Nd2 Rg1 b1B Rg2 Bbe4 Rg1 Na7+ Ka3 Nb1+ Kb2 Nb5 Bgf5 Nf7 Rg6 Ng5 Bg4 Rf7 Nfd3 Bh8 Nf4 Rf6
RrqR1bN1/4qb1q/R5nb/2pK2b1/1rQ2B2/4b2P/4r1P1/rn2NkN1 w - - 0 1 illegal: No proof kernel
r1b4n/1b2R3/1kn3bn/1nnq2PQ/2b1nbp1/2P1B2N/1RN3N1/3r1R1K w - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 a5 g4 axb4 h4 g5 f5 gxh4 g5 e6 Bh3 exf5 Bg4 fxg4 Kf2 f5 Kg2 d5 a4 Kd7 e4 Kc7 c3 h5 a5 b5 a6 d3 e5 d4 e6 d2 a7 h3+ Kh2 d3 e7 b3 e8N+ Kb6 Qc2 d1N Qa2 b4 Bf4 b2 Qf7 b3 Ra3 d2 Bd6 f4 Be7 h4 Qg6+ Nc6 Nf6 f3 Qe8 f2 Nh7 f1B Ra4 Nf2 Rd4 d1N Rd6 Ne4 Nd2 b1B Re6 b2 Ne2 Nd6 Nd4 Nh6 Re3 Nf2 N2b3 Nfe4 Bf6 Nc5 Na5 Bc4 Qh5 Bg6 Re4 b1N Re7 Ndf7 Rhe1 Qd5 Rf1 Na3 Nc2 Nb5 Bd4 Bg7 Bg1 Rd8 Be3 Nh8 Nf8 Be5+ Kg1 Bc7 Ne6 Rd7 Nf4 h2+ Kf2 h1N+ Kg1 Ng3 Nh3 Ne4 Kh1 Rb8 a8R Bf4 Ra7 Ra8 Rb7+ Ka6 Nf2 h3 Rb8 h2 Nh3 Nc7 Rb2 Nb5 Ne1 Rd8 Nb3 Kb6 Nd4 Rd6 Ndc2 Rd7 Kg2 h1B+ Kg1 Qf7 Ng2 Rd1 Nh4 Bf3 Ng2 Qd5 Kh1 Na5 Bf2 Ng3+ Kg1 Qd7 Re2 Bfb7 Re7 Nc6 Be3 Ne4 Kh1 Qd5
3nRK1R/1b2r3/1Qb1nPBq/3kn2N/N1qqR1nq/2b2pP1/8/r2N3r w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 e4 gxh4 f4 a5 e5 axb4 e6 fxe6 f5 e5 Bf4 exf4 Ke2 Kf7 Kf3 b5 Ke4 e5 Kd5 h5 c4 e4 a4 b3 a5 h3 c5 e3 a6 h2 c6 d3 c7 f3 a7 e2 g3 e1N Qc2 d2 Ke5 d1N Qf2 d5 Qd2 b2 Nh3 b4 Ba6 d4 Rg1 h1R Ra4 d3 Qf4 b3 Qb4 h4 Nf4 d2 Ra2 h3 Qb5 h2 Rg2 Ne7 Qd7 Nf2 Kd6 d1Q+ Nd5 Ned3 Ra4 Ng4 Rc4 Bb7 c8R Rh7 R8c6 Bg7 Rc8 Nde5 Rc1 Nbc6 Rg1 Qd4 Nc3 b1B Rge1 b2 Nd1 Be4 Bd3 b1Q Rc4 Qa2 Re2 Qf8 Qc7 Nd8 Qb6 Bf6 Rb4 Qh6 Bb1 Qa4 Bd3 Qc4 Nf4 Bec6 Re4 Qh4 Nh5 Qa1 Rb5 Qad4+ Rd5 Bg5 f6 Bd2 Bb1 Bc3 Bc2 Ne6 Rh8 Ng7 Kc7 Ke6 Rdd8 Rh6 Bd3 Rh7 Rde8 Kd5 Bb1 Nc8 Kd8 Nd6+ Ke7 Ndf7 Kf8 Nd8 Re7 Nf5 Re8 Re7 Re2 Ng7 Bg6 Rf1 Re4 h1Q Nb2 Ra1 Nd1 Rb8 Nf2 Qc1 a8N Qh6 Nd1 Bc8 Qc7 Rbb1 Qa7 B8b7 Nb6+ Kc5 Na4+ Kd5 Qb6 Rc1 Ndb2 Rh1 Nd1 Nge6+
nBKNnb1B/1qbR3P/2q1r2n/r3q3/1P1b2bq/4p2k/1QB4r/2R2R2 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 e4 b5 g4 bxa4 e5 hxg4 e6 fxe6 Nd2 e5 Nb3 axb3 Bg5 e4 Be3 Rh6 Bc1 Rh8 Kd2 Kf7 f4 Ke6 c4 Kf5 h4 a5 c5 e5 h5 d5 c6 g5 h6 g3 c7 d3 Kc3 d2 Ba3 e3 Bc4 g4 Qf1 d1Q Qe2 d4+ Kb2 a4 Qd3+ e4 Qf1 e2 Bd3 e1R Rh2 g2 Be2 d3 Kc3 b2 Kc4 b1Q Kb5 g3 Kb6 d2 Bh5 Qbc1 Rh1 Ra5 Nh3 g1B+ Nf2 g2 Ra2 Qh4 Qe2 Bh2 Bf7 g1B Ra1 Nf6 Bb3 Na6 Bc2 Ne8 Bb2 a3 Bc3 Rh7 Bh8 a2 Rb1 Bd7 Kb7 a1Q c8R Qe5 Ng4 Nac7 Rd8 Bd4 Rf1 Na8 Qg2 Be6+ Rd7 Qf3 Kc8 d1N Qd2 Nf2 Qe2 Qef6 Ne5 Ng4 Nf7 Qe5 Nd8 Bg3 Qg2 Re2 Ra1 Re7 h7 Nh6 Rb1 Kg4 f5 e3 f6 Qfd5 Qf2 Kh3 f7 Bg4 Qf6 Re6 Ra1 Qd1 Rc1 Rh2 Qf2 Q1f3 Qd2 Bfc5 f8B Qde4 Bd6 Qc6+ Bc7 Bf8 Qc3 Be1 Qb2 Bec3 Rd5 Bb6 Rd7 Bcd4 Kb8 Qg2 Bd6 Bc7+ Kc8 Qh1 Qb1 Qcd5 Qb3 Bcb6 Bb8 Bc7 Qa2 Qb5 Qb3 Qhc6 Qb2 Qbb7+
5r1B/RKb1k1nn/2p4Q/p3Pn2/2B2b1r/b3N3/1qbq1RbP/2Bq1R2 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 fxg3 Qc2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Qb3 Bh3 Qd1 Bc8 e4 a5 Ke2 f5 Kf3 g5 d4 g4+ Ke3 c6 b4 f4+ Kd2 f3 Kc3 a3 b5 a2 b6 f2 e5 Nh6 b7 Ba3 d5 Ke7 Kd4 c3 Ke4 c2 Be2 f1B Bb5 Nd7 b8B Nc5+ Kd4 Bf5 Qd2 Ne6+ Kc3 Ng7 Nh3 g1N Kd4 g2 Nf2 g3 Nd1 Nh3 Bc7 g1B+ Ne3 g2 Bc4 Ng5 Rb1 a1Q+ Rb2 Nh7 d6+ Kf8 d7 Ke7 Bb6 Bf2 Bc7 g1Q Bb6 Qa2 Bc7 Qb8 d8R Bg2 Bb6 Qe1 Rf1 Qd1 Rf8 Bfe4 Rb4 Bh4 R8f2 Nhf5+ Kc5 Qb2 Bc7 Qd8 Kb6 Qd7 Rb3 Raf8 Kb7 Bg5 Rb5 Bf4 Rb6 Bd6 Rb3 Qd8 Bb6 Bc7 Qd6+ Ke8 Qh6 Q8d2 Rd3 Ke7 Rd8 Ng5 Ra8 Nh7 Ra7 Qbb4 Bb2 c1B Ba3 Bc2 Bb2 Qbc3 Bc5+ Kd8 Be7+ Ke8 Bf6 Qcd4 Bc3 Ba3 Bb2 Kd7 Bc1 Qb2+ Ka6 Nh5 Qg5 Rhg8 Qh4 Rg4 Bh8 Nhg7 Qf6 Rh4 Qh6 Qa2 Kb7 Ke7 Ba6 Qa1 Bc4 Qb2+
n6q/1R2B3/Q2RP2n/1P1b2bn/3rrp1K/qqk4p/1nNn1R2/2N3Nn w - - 0 1 illegal: No possible last move, all moves rejected
2rR1r2/1qQ2qB1/P4qbn/3nbb1R/2p1R2K/k1NP1bB1/3p4/2qB2b1 w - - 0 1 legal: proof: c4 e5 b4 a5 g4 axb4 f4 exf4 d3 h5 c5 hxg4 c6 dxc6 Nh3 c5 Kf2 c4 Ng1 c3 Nd2 cxd2 h4 Ke7 a4 Kd6 e4 Kc5 a5 g5 h5 f5 e5 b5 e6 f3 Kg3 f2 e7 f4+ Kg2 g3 e8R g4 h6 b3 a6 Kb4 h7 c5 Re6 b2 Re1 b1B Re6 Nc6 Re1 Ba2 Be2 Qf6 Nf3 f1B+ Kg1 g2 Kf2 Nh6 Rh3 Bd6 Rh5 Bf5 Nh4 f3 Rg5 g3+ Ke3 f2 Kf3 g1Q Rg7 g2 Rc7 Rhc8 h8B Ne7 Bb2 Bf7 Qc1 Be5 Rd7 B7g6 Bd1 Nd5 Bg7 Qh1 Rd6 g1B+ Ng2 Rf8 Bd4 Rac8 Ra5 Qf7 Rd8 c4 Re4 Qh4 Ne3 Qhf6 Qa1 Be2+ Kg2 Beg4 Ba7 Qb7 Bb8 Be2 Qd4 Beg4 Qa7 f1Q+ Kh1 Qbf7 Qc7 Qe1 Kg2 B4h5 Bg4 Qc1 Kh3 Kb3 Nd1 b4 Rc5 Ka3 Nc3 b3 Rb5 b2 Rc5 Qc6 Kh4 b1Q Bd1 Bf3 Qe7 Bed4 Bg3 Be5 Qc7 Qbb7 Bc2 Ne3 Bf6 Bd6 Bg7 Bh3 Rg5 Bhf5 Ba4 Nd5 Rh5 Be5 Bd1 Qcf6+
5R1B/1Rpn4/1r3Pr1/3q3r/2b1BkPQ/qq3n1K/qq1R1rp1/1NB1b3 w - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 a5 e4 axb4 h4 f5 h5 fxe4 Nc3 g6 Nce2 gxh5 Ng3 h4 Rh3 hxg3 Rh4 Qd6 Rh1 Qd8 f4 Kf7 d4 Ke6 a4 b5 a5 h5 a6 c3 a7 c2 Ra4 g2 Kf2 b3 Kg3 e3 Qd3 e2 Qd1 e1Q+ Kh2 b4 Qd2 b2 Bb5 b1Q Qd3 b3 Nf3 h4 Bc6 b2 Qd1 h3 Bd2 c1Q Qc2 Qe5 Re1 Nh6 Ba5 Ba6 Re3 Bc4 Rb4 Nf7 Rb6 Rh6 Qd2 Rg6 Qe1 Ng5 Re2 Qa2 Qh1 b1R Qe1 Qca3 Ra6 Rb6 d5+ Kf6 d6 Qeb2 f5 e5 d7 Bb4 Kg3 h2 Qh1 Bc3 Nd2 Qbb3 Bb4 e4 Nb1 e3 Be4 Ke5 Be7 Qg8 d8B Qd5 Qe1 h1R Bf6+ Kd6 Rf2 e2 Bh8 Rh5 Qh1 Nd7 Qh4 Rc8 a8R Qbb2 Bdf6 e1Q R6a7 Rf8 Rb7 Qed1 Rd8 Rf7 Rf8 Qdb3 Bd4 Rff6 Be3 Ke5 Bc1 Bb4+ Kh2 Be1 Rd2 Kf4 Bd3 Rfe6 f6 Re2 Be4 Nf3+ Kh3 Rf2
4qkbK/7R/1NrP3r/qQ1n1qr1/bNq1r3/b4nP1/1p3BRp/N1R5 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 h4 g5 a3 gxh4 e3 c3 Be2 Ra7 Bc4 Ra8 Ba2 b3 Qf3 bxa2 Qh5 Nd7 Qd1 Nb8 Kf2 c5 Kf3 h5 Ke4 b5 Ke5 f5 d4 c4 d5 f3 g3 f2 e4 f1R a4 b4 a5 b3 a6 c2 a7 c3 Bg5 c1Q Be3 c2 Nc3 b2 Nge2 f4 Bd4 f3 Bb6 f2 Rh3 Ne7 Kf6 Bd7 e5 Ba4 e6 Nbc6 Nb1 Ne5 Nbc3 Nf3 Bc7 Re1 Nf4 f1Q Rh2 h3 Ng2 h4 Qd3 Re4 Bb6 Rh5 Qc4 Rg5 Ne3 Qb1 Qb3 c1R Rg2 h2 Nc2 h1B Bf2 h3 Qb7 Rb8 a8N h2 Nb6 Qc4 Qa6 Ra8 Qa5 Ra6 Qb5+ Nc6+ e7 Qd7 Nd4 Nb4 Nb3 Qbd3 Rb1 a1Q Na2 Rc3 Rc1 Qe3 Rc2 Qae1 Na1 Qec5 Qc6 Qa5 Rc1 Qee2 Rgg1 Bg2 Qb5 Bh3 Rg2 Be6 Rc2 Bg8 Rc1 Nd3 Nb4 Nf4 Re1 Qa2 Rb1 Rc7 Rd1 Qac4 Rc1 Rc6+ d6 Bh6 Be1 Rd4 Rc2 Ra7 Qd5 Re5 Qb5 Nd5+ Kg6 Bd2 Kg7 Rg5+ Kh8 Qf5 Na2 Bb4 Bf2 Ba3 Rc1 Qee6 Nb4 Re4 Rgg1 Kf7 e8R Qeg6 Re6 Kf8 Re7 Qe8 Rg2 Rb7 Rg7 Rf7 Rh7 Rf6 Rh3 Rfe6 Rh7 Rh6
8/2n1Pn2/RPB2bR1/n3k1qN/1K2bppr/n3N2Q/pNr1n2R/1q1r4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 Kd2 Ke7 e4 Kd6 b4 g5 h4 a5 c4 f5 b5 f4 c5+ Ke5 h5 d5 c6 a3 b6 a4 c7 d3 Kc3 a2 h6 g2 h7 d4+ Kc4 g3 Kb5 a3 Rh4 g4 Rh6 d2 Qc1 d1N Rh1 d3 Rh5+ Qg5 Qc4 d2 Qd3 Nh6 Qf3 Nf7 Ne2 g1N Rh6 g2 Qh3 Bg7 Kb4 Nc3 Rg6 d1R Ng3 Bf6 Nd2 Nb5 Nh5 Bb7 c8N Ne2 Nd6 g1Q Bg2 Nc7 Nf1 Ra5 Bh1 Rc5 Ne3 Rc2 Ndc4+ Ke6 e5 Nc6+ Kc5 Na5 Kb4 Be4 Nb2 Qf1 Nd5 Kf5 e6 Ke5 e7 Qg1 Ne3 Qf1 Rb1 a1N Bg2 Re8 h8R a2 Rh7 Rg8 Rh8 Rg7 Ra8 Rh7 Ra6 Qh1 Ng3 Rh4 Nh5 Nc4 Rc1 Nb3 Ra1 Na3 Bf3 Bf5 Bc6 Na5 Rc1 Be4 Ra1 Rdd2 Rf1 Rd7 Rf2 Qb1 Rh2 Rd1
b2k4/q1n1qpRR/1p4B1/r1n1r1rR/r3P1pq/2b2QP1/2nNN1K1/3N4 w - - 0 1 legal: proof: f4 c5 b4 g5 h4 gxh4 d4 cxd4 f5 a5 f6 axb4 Bf4 exf6 Bg5 fxg5 Kf2 h5 c4 d5 e4 d3 a4 g4 g3 d4 a5 b3 c5 b6 a6 d2 c6 b2 c7 h3 a7 d3 Rh2 h4 Ne2 Nf6 Nf4 Bb4 Qf3 d1R Ng2 d2 Ra3 Bc3 Qe3 Rg8 Ra6 Nbd7 Qd4 Nc5 Ra3 Bb7 c8R Rg5 Ba6 Nd5 Bc4 Nc7 Rh1 h2 Qe3 h3 Nf4 Rc1 Bb3 d1Q Qf3 Qd7 Nd2 b1N Ra5 Na3 Be6 Ra1 Ne2 Nc2 Bf5 Ra4 Bg6 Qe7 Kf1 Kd7 Rb5 Qh8 Rf8 Qh4 Rg8 Bc6 Rg7 Kd8 Rg1 h1Q Kf2 Rc8 a8N h2 Ra1 Qb1 Kg2 Qa2 Rab1 Rb8 Rh1 Rb7 Ra5 Ra7 Rb5 Nb3 Rc5 R7a5 Re5 Nc5 Rf5 Nd5 Nc7 Ba8 Nb5 Nc7 Re5 Qd5 Rf5 Qb7 Re5 Qa7 Rf5 Bb2 Nbc3 Ba1 Nd1 Bc3 Rf1 h1R Re5 Qh7 Re1 Rhh5 Rh1 Rf5 Rh4 Rhg5 Rh5 Qh6 Re6 Rd5 Rf6 Rge5 Rff5 Qhg5 Rhh7 Qh4 Rfh5 Rg5 R5h6 Rdf5 Rh5 Re5
B4nbn/1p5k/1bQRrBnb/K2p1r2/P2BR1q1/qp1N2rP/8/3b1R2 w - - 0 1 illegal: Other
2RB1Kbn/b5r1/1N2N3/1pn2nrR/p2nRP1p/2Qb4/NPqn2k1/3b4 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 g5 e5 gxh4 e6 fxe6 a5 e5 Bg5 Qxa5+ Bd2 Qd8 Bc1 e4 Bc4 Nh6 Bg8 Nxg8 Ke2 Kf7 f4 Kg6 c4 Kf5 c5 Kg4 g3 a5 c6 d5 c7 h5 Ra2 e5 Be3 a4 Qe1 d3+ Kd2 d4 Nh3 Kf3 g4 Na6 g5 Nc5 g6 Bf5 c8R Nh6 g7 Qc7 g8N Kg2 Rd8 Rh7 Ne7 Nf7 Ng5 h3 Nc3 h4 Nb1 h2 Bf2 e3+ Kc1 d2+ Kd1 e4 Ke2 d1N Nc8 Nh8 Nd6 Rg7 Qc3 d3+ Ke1 e2 Kd2 e1N Ra3 Nc2 Re1 h1B Rc8 Nde3 Nc4 Nd4 Ne6 Bg6 Rd1 Nef5 Nb6 Bh7 Rb3 Bg8 Rb4 Ra7 Re1 Rg5 Re2 Qc6 Rc4 Rag7 Re3 Na6 Rc5 Bd6 Re1 Bb8 Re5 Ba7 Re2 Nh6 Ke3 d2 Re1 d1B Rd5 Rg4 Rh5 R4g5 Re2 Nc5 Re1 Nf3 Re2 Nd2 Kd4 Nf5+ Ke5 e3 Kf6 Qe4 Re1 e2 Bd4 Bc2 Be5 Bd3 Bc7 Qc4 Bd8 Qe4 Qa3 Qc4 Nc3 Qb3 Na2 Qc2 Ra1 e1N Qc3 Nef3 Re1 N3d4 Re4 Kg1 Nf8 Bf3 Ne6 Nd6 Nf8 Kg2 Ne6 Ndf7 Ke7 Nd6+ Kf8 N6f5 Qb3 Bg4 Qc3 Bd1
7N/1B3B1b/RP3b1P/r2n1k2/r2QR1q1/p1bp2pR/n2nqbB1/3Kn3 w - - 0 1 illegal: No possible last move, all moves rejected
1q2bK2/r1Np3n/1prn3Q/2bB4/kb2p3/1p1P1N2/2P1N1Rr/1nRq3R w - - 0 1 legal: proof: e4 a5 b4 axb4 a4 bxa3 h4 c5 h5 f5 h6 fxe4 Bb2 gxh6 Bd4 h5 Bc3 h4 Bb4 cxb4 Ke2 h5 Ke3 e5 f4 b6 g4 h3 d3 a2 g5 h4 g6 h2 f5 h3 g7 Bb7 f6 Ra7 f7+ Ke7 Qh5 Kd6 Qd1 Kc6 Nc3 Bc5+ Ke2 e3 Kf3 e2 Kg4 e1B Kf5 e4 Kg6 Na6 f8N Rh6+ Kf7 Nc7 Rb1 a1N Na4 Kb5 Bg2 Qb8 Ne6 Ne8 Bf3 Nb3 Ne2 Ngf6 g8R Nh7 Ng3 Nd2 Nf1 b3 Bh5 Bd5 Rc1 Nb1 Rg2 Beb4 Qd2 Nd6+ Ke7 Ka5 Nc7 Bf7 Nc3 Be8 Ne2 Ka4 Bf7 Rg6 Bd5 Rf6 Rhg1 h1Q Qh6 h2 Nd2 Rg6 Rgd1 Qg1 Rf1 h1R Nf3 Rh2 Rfe1 Qd4 Rh1 Qg1 Na6 Qd1 Nc7 Ng5 Kf8 Re6 Kg7 Nh7 Kg8 Nb5 Kg7 Rc6 Kg8 Nd6 Kg7 Ng5 Kf8 Nh7+
2k1N3/K3pr1P/2pRp1RN/2b1NbQ1/B2nPb2/p1pR4/qn2rb2/3r4 w - - 0 1 legal: proof: g4 b5 a4 bxa4 c4 h5 c5 hxg4 c6 a3 Qb3 dxc6 Qb6 c5 b3 c4 Qe6 fxe6 Bb2 axb2 f4 Kd7 Kf2 a5 Ke3 g5 Kd4 g3 Kc5 g2 h4 c6 d4 c3 e4 a4 b4 a3 h5 g4 b5 g3 h6 Ba6 h7 Bc8 d5 Kc7 f5 Bd7 d6+ Kc8 f6 Bh6 b6 Be8 f7 Bf4 f8R Nh6 Rf6 Rf8 Rg6 Nf5 Nd2 b1R Ngf3 Rb2 Rd1 Rf7 Rh3 Nd4 Ne5 g1B Ndc4 g2 Rhd3 Bf2 R1d2 g1B d7+ Kb7 Rd1 Re2 R1d2 Qc7 d8N+ Kc8 Rd1 Qa7 R1d2 Qa4 Rd1 Qb3 b7+ Kc7 Nd6 Qa2 Nec4 Kd7 Kb6 Na6 b8Q Nc5 R1d2 Ra7 Qa8 Rc7 Qa5 Na4+ Ka6 Rb7 Qg5 Rb1 Ka7 Rd1 Ne5+ Kc7 N6b7 Nb2 Nd6 Bd7 Ne8+ Kc8 Ng4 Bgh2 Nh6 Bd6 Ka6 Bb4 Ka7 Rf5 Ndf7 Bf4 Ne5 Rf7 Rh3 Ree1 Bb5 Re2 Nc7 Be8 Rhd3 Rf5 Ba4 Rf8 Rg8 Bg6 Ne8 Bf5 Rg6 Rf7 Re3 Nf3 Rd6 Nd4 Rd3 Bc5+
6K1/2qr2Pn/2Rr2Q1/1b1N1PB1/B1q2q1b/1rbqnkr1/B1Q5/5N2 w - - 0 1 legal: proof: e4 e5 d4 d5 a4 c5 c4 g5 b4 cxb4 h4 gxh4 a5 b5 cxd5 exd4 e5 f5 Ra2 Qxa5 Re2 Qd8 Re3 a5 Re4 a4 Qxa4 fxe4 Qd1 Bd7 Na3 Be6 Nb1 Bc8 Kd2 Kd7 g4 h5 f4 b3 d6 Ke6 g5 Kf5 e6 b2 e7 d3 Kc3 e3 Kd4 h3 Kd5 h2 e8B h4 g6 e2 d7 Kg4 Ke6 d2 Kf7 h3 g7 b4 f5 b3 Bg2 Be7 Nf3 e1B Qe2 d1R Qd3 Nc6 Qd2 Nf6 Qa5 Nb4 Qb5 Ra7 Qd3 Nbd5 Nfd2 Qc7 d8Q Nh7 Nc3 b1R Qf1 b2 Na2 Ne3 Qd6 B7h4+ Qd7 Ba6 Bc6 Bb5 Nc4 Bc3 Qf2 Rd6 Bd5 Rb7 Re1 h1Q Nb4 h2 Qc2 Qf3 Nd2 h1Q Nf1 Qf4 Ba2 Qhe4 Nd5 Qec4 Bd2 Ra7 Rc1 Kf3 Qe7 Rb7 Bd7 Ra8 Qg5 Ra3 Kg8 Rb3 Be8 Ra1 Qg6 b1Q Qb2 Qbd3 Qc2 Ba6 Ba4 Bb5 Bb1 Raa3 Ba2 Bb4 Bc3 Ba5 Bf6 Bc3 Bg5 Rb2 Qb1 Rg2 Qc2 Rg3 Re1 Rb3 Re2 Nd1 Re6 Ne3 Rf6 Rbb6 Re6 Rd7 Rc6 Ra6 Rc5 Re6 Rc6 Red6
rBQ5/NB2R3/2N2qq1/2QK2b1/4p2k/p3nrrP/2Pn1r2/3Qb1b1 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 g4 h5 e4 fxe4 f3 exf3 Bd3 hxg4 Be2 Nf6 Bf1 Ng8 b3 a5 b6 a4 Nh3 a3 Ra2 d3 Rb2 Ba6 Nc3 Bb5 Ng1 Ba4 bxa4 d2+ Kf2 Na6 Ra2 Nb8 Bb2 Qc7 Ra1 Qd8 Rc1 dxc1Q Ke1 Ra7 Bc4 Ra6 Bf1 Ra8 Kf2 Kf7 a5 Kg6 b7 Kh5 a6 g5 h3 d5 a7 e5 Nb5 d4 Ne2 e4 Ng1 g3+ Ke1 g2 Kf2 d3 Ba1 d2 Ke3 g4 Bb2 f2 Nd6 Nh6 Kd4 Qf6+ Kc4 Nc6 b8Q Na5+ Kd5 Nb3 Ne8 Kh4 Qe2 d1R+ Bd4 g3 Qbb5 Ng4 Nd6 Nd2 Qc5 Rg8 Be5 Bh6 Nb5 Bg5 Bb8 Qca1 Qd3 Qg6 Ne2 g1B Ned4 g2 Nc6 Qaf6 Be2 Bh2 Rf1 g1B Qf3 Ra1 Bc4 Bg3 Qd1 Rb1 Bd3 Rb3 Be2 Nh6 Bg4 Rf3 Bc8 Ng4 Bb7 B1h2 Rg1 f1R Rg2 Be1 Rf2 Rc3 Rf5 Rff3 Re5 Rf2 Re7 Rg3 Bd6 Raf8 a8Q Bg1 Qa6 Rf7 Nba7 Ra8 Bb8 Qb2 Qaa5 R7f3 Qc7 Qbf6 Qc8 Ne3+
2N1q3/5qB1/1Rb5/1bPknn2/K1R1q3/4Q1Pb/Rq2rrp1/qn2QN2 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Bh3 e4 Bf4 fxg6 Qd3 g5 Bc1 g4 Qd1 g3 Kf1 g5 Ke1 g4 Be3 g2 Bf4 g3 Nf3 g1N Bf5 g2 Bc1 Bd6 Bg6+ Ke7 Bf5 Bg3 hxg3 Kf8 Be6 Ke7 Bc4 Ke8 Bd3 exd3 Kd2 Kf7 a4 Ke6 e4 b5 c4 d5 e5 h5 c5 b3 a5 b2 a6 h4 a7 h3 Ra2 b4 Nh4 b3 f4 h2 Qe2 Nd7 Qd1 Ne2 Nf3 Nc3 Qf1 Ne7 Ng1 Re8 Ne2 Ba6 Qd1 Nf5 Na3 b1Q Rf1 h1Q Nc2 b2 Ne3 Qh5 Qe1 Qf7 Rf2 Qa1 Nf1 b1Q Bb2 Re7 Ra4 Qde8 Rc4 Qba2 Rf3 Nb1+ Kc1 d2+ Kc2 Rb8 a8R Rb5 Nc3 d1B+ Kc1 d3 Ne4 d4 Nd6 Qa4 Nc8 Kd5 e6 Ne5 Rb8 Qb4 Rf2 Bf3 Rb6 d2+ Kc2 Ra5 Bc3 Ra2+ Bb2 Qbb5 Re2 Qbc6 Kb3 d1B+ Kb4 d3 Rec2 Nd4 f5 d2 f6 Nf5 Bc3 Bde2 Kb3 d1Q Bd4 Qg7 f7 Qd2 f8Q Qgf7 Qh6 Bg4 Bb2 Bef3 Qhe3 Bh3 Bc3 Qd4 Rf2 Re2 Bb2 Rd7 e7 Rd6 Bc3 Rf6 Kb4 Qe4 Bb2 Qh8 e8Q Qce6 Qb5 Qee8 Kb3 Ng6 Nd2 Qd3+ Bc3 Nfe7 Qf1 Re1 Nd6 Be4 Rb8 Ke6 Qf4 Bc6 Nc8 Qe4 Qe3 Kd5 Rb6 Rf3 Qfe2 Nf5 Nf1 Qhf6 Q2d2+ Qfd4 Re2 Rf2 Qd1 Qd2 Bg7 Ne5 Qc1 Qdd4 Ra2 Ree2 Qe1 Qdb2+ Ka4 Baxb5+
b1nq2Nb/P2Qb1R1/3QBPr1/2q3pB/1n1n2b1/5r2/1R1bBkr1/3K4 w - - 0 1 legal: proof: g4 a5 a4 d5 c4 g5 d4 f6 h4 gxh4 g5 e5 g6 exd4 Bg5 fxg5 b4 axb4 Na3 bxa3 cxd5 Qf6 Rh3 Qd6 Rh1 Qd8 f4 Ke7 e4 Kd6 f5 Kc5 g7 h5 d6 b5 d7 d3 e5 Kd4 a5 Ke3 e6 c5 a6 a2 a7 b4 e7 b3 e8B b2 Bg2 b1Q Bd5 c4 Be6 d2+ Kf1 h3 B8f7 c3 Bc4 h2 Bfd5 c2 Bd3 c1B B5e4 h4 Qg4 d1N Ke1 h3 Bf1 Nf2 Bc6 Be7 Bf3 Qbb6 Ne2 Nc6 Bd5 Rh6 Qa4 Nd3+ Kd1 Ndb4 Bf3 Nd4 Qc6 Qc5 Bh5 Kf2 Nc3 Rg6 Nd5 Bd2 Rb1 a1B Bfe2 Bac3 Re1 h1B Qd6 h2 Nf6 Bc6 Rb3 h1R Rb2 Rh2 Rh1 Rg2 Rh2 Nh6 g8B Nf7 Rh3 Rb8 Rh1 Ba8 Re1 Ne5 Be6 Nc4 Ng8 Rb5 Rh1 Nb6 Re1 Ra5 Rh1 Ra3 Rh3 Qe8 d8Q Bd7 Q8c7 Qd8 Rh4 Nc8 Qb7 Bc6 Qbd7 Bf3 Rh3 Bg4 Re3 Ndc2 Re4 Bh8 f6 Rf3 Rc4 Qe3 Rc7 Nd4 Qa4 Bf8 Rg7 Be7 Qac6 Qc3 Qcd7 Qc5
4q2B/1n1Qr2q/2PNPp1q/Nn2qbrR/R1qr4/2k4K/3q1Q2/1b5N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Nd2 d5 Nb1 d4 e3 gxh4 a3 b5 Bc4 b3 Bd3 Bb4+ axb4 b2 Bc4 Qe7 Bb3 Qd8 Ba4 bxa4 Kf1 Ke7 g4 Kd6 Kg2 Ke5 c4 d5 b5 h5 b6 h3+ Kh2 a3 b7 a2 g5 h4 c5 f3 c6 d3 g6 f6 g7 d2 e4 Kd4 e5 f2 Qe1 d1Q Qa5 f1Q Qa4+ Qc4 Qb3 Nh6 g8N Nf7 Bd2 Qe8 Qb5 Nd7 b8Q Rh7 Qc7 Ra5 Bf4 Nc5 Qa6 Nd6 Bg5 Nb5 Bd2 Nb7 Bc1 Re7 Nd2 b1B Nb3+ Kc3 Bh6 d4 Qd7 d3 Qb6 d2 Qf2 Qc1 Bf8 d1R Nh6 Rd4 Nf7 Qg5 Nd6 Qd2 Qg4 Bcf5 Ne2+ Kb2 Ng3 Kc3 Kg1 h2+ Kg2 Qh6 Bg7 Qd2 Bh8 h3+ Kf3 Bfd3 Qd7 Bf5 Rg1 h1Q+ Rg2 h2 e6 Qg1 Nh1 Qgc1 Rg5 Qcc2 Rh5 Qh6 Kg3 Qcd2 Qf4 Qh7 Nf2 h1Q Qh4 Qhd1 Nh1 Qdh6 Kg2 Qdd2+ Qf2 Nc7 Kg3 Rc5 Na5 Nb5 Nc8 Bg6 Kh2 Rg5 Nd6 Bbf5 Rd1 Bb1 Kh3 a1Q Rg1 Qa3 Rg4 Qac5 Rf4 Qe5 Rf5 Rdg4 Rf4 Bgf5 Re4 Qce2 Rb4 Qc4 Ra4 Rd4+
1b2b1Qr/rqbPN3/qn1K1N2/k1n3r1/3B2pq/3P2rQ/2Q5/2R2q1B w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 f4 e5 Qb3 exf4 Ra2 g3 Ra3 g2 Qd1 Nf6 Rc3 Ng8 Rg3 fxg3 h4 Kd7 e4 b5 Ke2 c5 Ke3 Kc7 Kf4 Kb6 Ke5 f5 d3 g5 d6 b3 h5 b4 h6 c4 h7 f4 Rh2 f3 Rh4 c3 Be3+ Ka5 Bf2 b2 Na3 b1Q Be2 b3 Nh3 g1R Nc2 g2 Nb4 c2 Nf4 c1B Rh1 b2 Nfd5 Be7 Nf6 Bd7 Nbd5 Qa2 Qc2 b1Q Bd4 f2 Bf3 Be8 d7 f1Q Ke6 Be3 e5 Qb7 Be4 Qa3 Bf3 Bd6 Ne7 Na6 Bc6 Ra7 Kd5 Qbb4 e6 Bb8 Ba8 Nc5 Kc6 Ka6 a5 Bef4 Kd5 Bfc7 Bb7+ Kb5 a6 Ka5 Ba8 Qc8 Bc6 Bd8 Ba8 Rc7 a7 Qcb7+ Ke5 Qaa4 Kd6 Qa6+ Bc6 Qbb7 a8Q Qab4 Qa7 Qbe1 Ng6 Qh4 e7 g4 Rh3 Rh1 Re3 g1R Re1 Rg3 Rc1 Bf7 e8Q Ne7 Qf8 Nd5 Ne7 Nb6 Qg8 Be8 Be4 Rh2 Bh1 Re2 Qg5 Re5 Qg8 Qe4 Qb7 Rg5 Qc6 Ra7+ Qc7 Qeg2 Qf7 Rhg8 h8Q Qgb7 Qh6 Rh8 Qg8 Rg6 Qe3 Rg5 Qf3 Qb5 Qfg2 Q5a6 Qh3 Bdxc7#
5r2/B1r1R1KQ/3k4/2rp3P/1n1BrpN1/2PQR3/2rb1r1q/bBr4n w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 h5 Bb2 exf6 Ba3 f5 Bc1 f4 g4 hxg4 a4 b6 Nd2 Bb7 Nc4 Bc6 Na5 Bb5 axb5 bxa5 Kf2 Ke7 h4 f5 e4 g5 b6 d5 e5 a4 e6 g3+ Kf3 d3 h5 a3 b7 g4+ Kg2 d2 c3 b3 Nf3 a2 Nh2 f3+ Kg1 f2+ Kg2 b2 Qb3 b1R Qa4 d1R Bf4 Bh6 Bc7 Rh7 Qc4 Na6 b8B Rd2 Qe4 Qd6 Rg1 Nf6 Qe3 Ne4 Qe2 Rc2 Nf3 Bd2 Bb6 Rb5 Bd4 Rc5 Re1 a1B Ba7 Nb4 Nh2 Rf8 Qd3 Qe5 Re3 Kd6 Rh1 Rhc7 e7 f4 Be2 f1R e8Q Nf2 Qf7 Qe7 Qfh7 Qh4 Rg1 Nh1 Bf3 Re1 Be4 Rec1 Bf5 Re1 Re7 Re4 Re1 Qh3+ Kg1 g2 Re3 Ng3 Kf2 g1R Bg6 Nh1+ Ke2 g3 Kf3 Qg2+ Kg4 Rf1 Kg5 Rf2 Ng4 Qh2 Kh6 g2 Kg7 g1R Be8 Ra2 Ba4 Rgf1 Bc2 Rc1 Bb1 Rac2
1b1Q3R/q5PN/np1b3r/Q5pr/nN1Bk1B1/1bn5/BK3b1P/4qq2 w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 exf4 a4 bxa3 Nc3 d5 cxd5 g6 Rb1 g5 Rb4 h6 Nb1 f3 Rf4 Be7 Qc2 Bd6 Qf5 gxf4 g5 Bc5 g6 Bf8 Qg5 hxg5 Kd1 Ke7 Kc2 Kd6 d4 c5 e4 f5 g7 b6 Bh3 c4 Nc3 f2 Na4 f1N Ne2 a2 Nc5 a1B Na4 f3 Nf4 f2 Ne6 c3 Nf4 Rh5 Be3 Qe7 Kc1 c2 Nb2 Na6 Nbd3 Be6 Bg4 Nf6 Ng6 f4 Nb4 Ng3 Re1 f1Q Bg1 f3 e5+ Kc7 Rd1 f2 d6+ Kb7 d5 Nfe4 d7 Bd4 d8Q Qe1 d6 f1Q d7 Bb3 e6 Nec5 Qe8 Bf2 d8Q Nge4 Qb5 Nc3 Qa5 Qd7 Kb2 Bd6 e7 c1B+ Ka1 Bce3 e8B Bef4 Bf7 Bb8 Nf8 Bfd6 Nh7 Qa4+ Na2 Kc6 Kb2 Rh6 Rd5 Rh5 Re5 Rh6 Re6 Kd5 Re8+ Kd4 Rh8 Ke4 Nb4 Qd7 Bc4 Qa7 Qc8 Bbc7 Qd7 Rg8 Qc8 Bb8 Qd8 Rf8 Bf7 Rh5 Bg8 Rf6 Bc4 Rfh6 Bg8 Bh4 Bd4 Bf2 Bf7 Bd1 Ba2 Ba4 Nf8 Bb3 Nh7 N5a4+
3q1n1R/nr4pK/B4P1n/1qrbNQBr/3P1r1Q/2p2N2/3b4/Nb1k4 w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 Ra2 fxe4 Ra6 Be6 Ra1 Bc8 b4 cxb3 g4 h5 Ra2 hxg4 Ra4 a5 Rb4 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Kd4 Kg6 e5 f4 c5 h4 b2 b6 c4 h5 b3 d3 g3 h6 g2 b7 e3 f5 e4 h7 e2 f6 e1Q Qg4 Qe2 Qf4 Ra5 Rh4 Nc6 b8N Rc5 Rg4 Na7 Qf5 Be6 Na3 Kc3 d4 b1R Nf3 g1N Nh2 b2 Qf2 e3 Rf4 Nh6 Rh4 Nf3 Rf4 Ng5 Qf3 Bd5 Bh3 Ne6 Nd7 Qf1 Qf2 e2 Ne5 e1R Nc2 Re4 Rh4 Rf4 Na1 Be7 Nhf3 Nf8+ Kh5 Bd6 Bc8 Bc7 Rh2 Ba5 Ba6 Qd3 Qh4 Qf5+ Qg5 Qfd7 Qf5 Qb5 Nc2 Kb3 Be3 Bd2 Na1+ Kc3 Rh1 Rc1 Kg5 b1B Rh5 Rh1 Rh2 Rg8 h8Q Kb2 Rh3 Kc1 Kh5 c3 Rh4 Nd7 Kg6 Kd1 Kh7 Rf8 Rh3 Rf7 Rh2 Rh4 Bg5 Rf4 Qe8 Re7 Qh5 Rf7 Qh4 Nf8+ Kh8 Ne6+ Kh7 Rb7 Re2 Rh3 Rh2 Nf8+ Kh8 Be3 Qh5 Nf7+ Kg8 Bd2 Qhg4 Rg3 Rh8 Rh3 Qh5 Ng6+ Kh7 Nh6 Qhg4 Rh5 Qh4 Nf8+
2r5/1N2q3/4rb1P/QP1n3p/1r2Brp1/1n4k1/KRrBQRB1/b4b1b w - - 0 1 legal: proof: f4 b5 c4 e5 cxb5 exf4 a4 c5 d4 c4 a5 Qxa5+ Nd2 c3 d5 Qd8 d6 Bxd6 Nb1 Bf8 h4 Ne7 g4 Ba6 g5 Bc8 g6 hxg6 h5 Ng8 h6 Na6 Nd2 Bc5 Ne4 Nb8 Ng3 Bf8 Nh5 gxh5 e4 Ke7 b4 Ke6 b6 Ke5 b7 f5 b5 d5 Qe2 a5 Kd1 g5 Kc2 f3 Kb1 a4 Qg2 d4 Qg3+ f4 Ne2 d3 Qg1 c2+ Ka2 g4 Qa7 a3 Bd2 c1R Rb1 f2 Nd4 f3 Ne6 Rc2+ Ka1 a2 Rc1 Be7 Be2 f1R Qf2 Ra6 Ba5 d2 Rh2 d1R Rb1 Nc6 Bd3 Nd4 Qe2 f2 Nc5 Kf4 e5 Kg3 b8Q Re6 Bd2 Bf6 Qa8 Ne7 Be4 Bb7 Qa5 Nd5 Bg2 Ba8 Nb7 Qe7 Be4 Rhc8 Bg2 Rec6 e6 Rde1 Be4 R6c4 Bg2 Rb4 Be4 Qh7 e7 Qf7 e8B Qe7 Qd1 Re3 Bc6 Re2 Bg2 Re6 Be4 Re1 Bg2 f1B Rb2 R1e4 Qe2 Rf4 Be4 Rcc4 Rf2 Rc3 Rb1 Nb3+ Kb2 a1B+ Ka2 Rcc4 Rb2 Rc2 Bg2 Nb6 Bce4 Nd5 Nd8 Bc6 Nb7 Ne3 Bg6 Bf3 Be4 Nd5 Bh3 Bh1 Bhg2 Qf8 Qe1 Qf7 Qe2 Qe7
3bn1N1/Q4Q2/PbPR1p2/b7/kb1qN3/5p1n/1RnQ1r2/1Kr1r1rB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 b5 f5 bxc4 f6 exf6 b5 f5 Bh3 f4 Bg2 Qe7 Bf1 Qd8 d3 c5 Qb3 c3 Qc2 c4 Be3 Bb7 Bc5 Bd5 Qc1 c2 Bb4 c3 Qd1 Bc4 dxc4 axb4 h4 c1B e4 g5 a4 d5 e5 Kd7 c5 b3 h5 g3 b6 Kc6 a5 c2 h6 b2 a6 g2 h7 d4 e6 f3 b7 g4 e7 g3 Ra2 d3 Qe2 Kb5 e8Q+ Nc6 Q8e6 Nd4 c6 Bb4+ Nd2 b1R Qd1 Nf6 Ra4 Ne8 Ne2 g1N Ra2 g2 Rh6 Nh3 Rb2 g1B b8Q+ Ka4 Ng3 Rg8 Qa7 Rb8 h8Q Be3 Ne2 Rg1 Nf4 Rb5 Qed7 Rbg5 Qf8 R5g2 Qdd6 Rf2 Nh5 Bg5 Qdc5 Qd6 Qc4 Bd8 Nf6 Qd7 Ng8 f6 Qff7 Qd6 Rh5 Qf4 Qc3 Ra1 Ne4 Be3 Qb1 c1B Kd1 d2 Rd5 Nc2 Rd6 Beb6 Qe3 B4a5 Qe1 Qe3 Bg2 Qd4 Bh1 Bb4 Ra2+ Bca3 Rb2 B4a5 Qc1 B3b4 Qb1 Ra3 Ne7 Re3 Qc1 Na3 Ng8 Nb1 Kc2 d1R+ Qed2 Ree2 Rb3 Ree1 Rc3 Na3+ Kb2 Nc4+ Kb1 Ne3 Rb3 Nc2 Rb2 Rxc1+
1Q1qb1nb/P2b1qB1/K3nN2/1q4n1/Qp2RR2/2N2r2/3p2bP/1N4kb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e3 Rh5 a3 Rh7 Bc4 Rh8 Ba2 b3 Qe2 bxa2 Qd3 Qf6 Qd1 Qd8 c4 b5 Qe2 b4 Qf3 Ra5 Qd1 Rb5 cxb5 Bc5 Ke2 Bd6 Ke1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b6 Ke4 Kb5 d5 b7 f5 a4 g5 a5 f3 a6 d3 a7 d4 Ne2 f4 Qd2 g3 Na3 g4 Rb1 a1Q Rg1 g2 Rh1 g1Q Qc3 f2 Qc7 Kf3 e4 Kg2 e5 f1B e6 g3 e7 d2 e8N d1B Kb6 f3 Nc4 d3+ Nd4 d2 Na5 f2 Nf5 Bd7 Neg7 Qa4 Rb2 Bfb5 Nd4 f1B Ne8 Bg7 Nf6 Bf3 Rb1 Rh3 Ra1 Nc6 b8Q Qf2 Nc4 Bh8 Na3 Bd5 Bb2 Qf3 Nf5 Nd4 Nd6 Ne6 Nde4 Qh5 Rd1 Qf7 Nc3 Be8 Rc1 Bbd7 Nab1 Kf2 Re1 g2 Rg1 Rf3 Re4 Ba8 Rh1 g1N Ba1 Nh3 Bb2 Qde7 Qc6 Nhg5 Qb5 Bh3 Rf1+ Kg2 Qa5 Qd8+ Ka6 Bac6 Rf2+ Kg1 Ba1 Bg2 Bb2 Qa2 Qa4 Qd5 Ba1 Rh3 Rff4 Bh1 Re2 Qf5 Bb2 Bcg2 Ree4 Rf3 Ne2+ Kf2 Ng4+ Kf1 Bg7 Qd5 Nec3 Kg1 Nf6 Qb5+
kqq1N2R/B2q1QB1/1b1bn1b1/2rrNB2/P2P4/2K5/2Q1bpp1/2q3r1 w - - 0 1 legal: proof: d4 d5 a4 e5 c4 dxc4 b4 a5 g4 axb4 f4 exf4 Ra3 bxa3 e3 Nc6 d5 Nd4 exd4 h5 Bd2 hxg4 Be3 Rh5 Bc1 Rh8 Kd2 Kd7 h4 b5 h5 g5 d6 Kc6 h6 Kb7 d7 f5 h7 c5 Qe2 b4 Qe3 b3 Qc3 f3 Rh6 a2 Bg2 a1B Rd6 b2 Bf1 f4 Rf6 f2 Rd6 f3 Bg2 f1B Rc6 f2 Be4 g3 Qd3 g4 Bd5 g2 Qf5 c3+ Kc2 c4 Nd2 b1Q+ Kd1 g3 Qf6 Bd6 Qe5 Nf6 Qf5 Ne8 Qe6 Ng7 Qh6 Ra5 Qg6 Rc5 Be6 Ka8 Bg4 Qb8 Kc2 Ne6 Ngf3 g1R Ba3 g2 Ne5 Qdc7 d8B Qd7 Bf6 Rd8 h8Q Bb7 Rc8 Be4+ Nd3 Bf5 Qf7 Bg6 Ne4 Bb2 Bb4 Ba3 Ne5 Bc7 Bh3 Bb6 Bf5 Be2 Qhh7 Bf1 Kd1 c2+ Kd2 Be2 Nd6 c3+ Ke3 Bb5 Bg7 Bc4 Ne8 c1Q+ Ke4 c2 Ba5 Ba2 Kd3 Bc4+ Kc3 Qc7 Qh4 Rdd5 Qe4 Qd7 Qe2 Qe3+ Qd3 Qh3 Rd8 Qh8 Rc8 c1Q+ Qc2 Rb5 Rd8 Bd6 Bb4 Rbc5 Ba5 Bbc7 Bb6 Qbc8 Ba7 Bb6 Nf6 Qh2 Rh8 Qhf4 Rh1 Qh2 Ne8 Qh8 Rh2 Qg8 Rh8 Qb8 Nf6 Qgc8 Ne8 Be2+
1rkn3B/Qn2R1b1/4pR2/1B3p1n/nP1r2Nn/1r3rp1/1qB4P/3K2Q1 w - - 0 1 legal: proof: b4 h5 g4 hxg4 e4 b5 a4 bxa4 d4 c6 d5 cxd5 Nd2 dxe4 Bg2 e3 Bh3 Rh5 Bf1 Rh8 f3 g5 Rb1 g3 Ba3 g2 Bb5 g4 Bc1 g3 Nb3 axb3 Ra1 Ba6 Bf1 Bc4 Qd3 Be6 Qd1 Bg4 fxg4 Rh3 Qf3 Rh4 Qd1 Rh8 c4 d5 g5 Kd7 g6 f5 g7 a5 c5 d4 c6+ Kc8 c7 b2 Qb3 b1N Bb2 e6 Be2 d3 Qc3 d2+ Kd1 a4 Ba3 Qf6 Bh5 e2+ Kc2 d1R Qd4 e1N+ Kb2 Nc6 Nh3 g1R Nf2 Nd8 Ng4 Nf3 Kc2 Nc3 Bb2 Rgf1 Qg1 a3 Be8 a2 Bb5 Na4 Be5 Ne7 g8Q Ng6 Qh7 Rd4 Bd3 Rf2+ Kd1 Nf4 Rc1 a1N Rc5 Rc4 Bc2 Nh5 Rb5 Ra5 Rb7 Nh4 Qe7 Rc3 Qc5 Nb3 Qa7 Rff3 Rb8+ Kd7 Ra8 Nbc5 c8B+ Ke8 Bb7 Kd7 Ba6+ Ncb7 Bd4 Bg7 Bb5+ Kc7 Rb8 Rb3 Bb2 Nf7 Rf8 Nd8 Bd4 Qe5 Rf6 Kc8 Bf1 Nbc5 Qa8+ Kc7 Rh6 Nb6 Kc1 Nc6 Qe3 Bf6 Bc4 Ra7 Bb5 Rb8 Rd1 Kc8 Qg1 Rd7 Qa7 Nd8 Rd3 Rd5 Kd1 Ncb7 Rd2 Na4 Ba1 Rc5 Rd7 Rc4 Re7 Bh8 Bd4 Bf6 Be3 Qb2 Bd4 Bg5 Bh8 Bf6 Rg6 Bg7 Rf6 Rd4+
2b1nq2/n2r1r2/3P1NK1/R1p1Pp2/N1QbBQp1/2Rb4/4krRp/7n w - - 0 1 legal: proof: f4 a5 b4 d5 a4 b5 axb5 Ba6 c4 dxc4 f5 Bc8 f6 exf6 h4 axb4 g4 g6 Bb2 g5 Be5 Be7 Bf4 gxh4 g5 Bc5 g6 Bf8 Bg5 fxg5 Kf2 Kd7 Kf3 Ke6 Ke4 h5 d4 c5 b6 f5+ Ke3 Kd5 g7 b3 b7 c3 Qc1 Kc4 d5 g4 Kf4 b2 d6 c2 Rh3 Nf6 Kg5 Rh7 g8Q+ Rf7 Ra2 Ne8+ Kg6 Nc6 b8R Ra7 Qe3 c1R Bg2 Rd7 Rba8 Na7 Qg3 Bg7 e4 Rc2 Nf3 Kd3 Nfd2+ Ke2 Qf4 Bd4 Rc3 h3 e5 h2 Ne4 h1N Nf6 h4 Be4 h3 Ra5 h2 Rb8 Rf8 Qd5 Rff7 Qc4+ Kd1 Rbb3 Rf2 Rg3 Ke1 Nc3 b1B Na4 Bd3 Rc3 Ke2 Rg1 Qe7 Rg2 Qf8
1K3Q2/rp3Pq1/1Q2r2Q/qp1N2Bn/3pR2P/4rpB1/1rb4R/nbk5 w - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 h5 a4 hxg4 a5 a6 b5 axb5 a6 e6 a7 Na6 Bg5 Bc5 Bc1 Bd6 f4 Bb8 axb8B Rh4 f5 Nc5 f6 Rh3 Bg2 Na6 Be4 Rh8 Bf5 exf5 e4 Nc7 e5 Rh5 e6 Kf8 e7+ Ke8 Nd2 Na6 Ne4 Rh4 Nc5 Rh8 Ne6 fxe6 Kd2 Kf7 Ke2 Rh3 Ke1 Rh8 Kf2 Kg6 Kg3 d5 Kf4 g3 Ke5 f4 e8Q+ Kg5 c4 g2 h3 d3 f7 d2 c5 f3 c6 d4 c7 Nb4 Qe1 Rh6 Rb1 Nc2 Rb3 Nf6 Ra3 Na1 Qh8 Ra7 Bb2 d1B Qf8 Bc2 Qe4 Nh5 Ne2 g1R Rb3 Rb1 Ba3 Rb2 Qd3 g6 Ke4 e5 Qd6 Bf5+ Kd5 e4 c8Q e3 Qd2 Qa5 Nf4 e2 Qb6 e1R Kd6 Re3 Kc7 Bb1 Bb4 Bfc2 Qf8 Kf5 h4 Ke4 Re1 g5 Nd5 g4 Be7 g3 Bg5 g2 Kc8 g1Q Bg3 Qg2 Kb8 Re6 Ra3 Qg1 Ra2 Qg2 Qc1 Kd3 Re2 Bb3 Qcc6 B3c2 Qcd6 Qg1 Qh6 Qg2 Qdf8 Qg1 Rh2 Qg2 Ra3+ Kd2 Rc3 Kc1 Rc6 Rg6 Re6 Qg1 Re4 Re6 Be5 Qg3 Bc7 Qe5 Bd6 Qf6 Bg3 Qg7
R2R1bK1/2n1pn1b/B3p3/NQp2b2/5q1P/1Q3np1/1Pbb1kN1/Nr6 w - - 0 1 legal: proof: c4 b5 e4 bxc4 d4 cxd3 g4 g5 a4 h5 e5 hxg4 e6 fxe6 Kd2 a5 Nc3 Ra6 Ke1 Rc6 Nb1 Rxc1 Nc3 Rh3 Nb1 Rf3 Nc3 Rf5 Nb1 Rb5 axb5 Rc4 Nh3 Rc6 Ng1 Rc1 Kd2 Kf7 Ke3 Kf6 Kd4 Kf5 f4 c5+ Ke3 d5 h4 d4+ Kf2 Ke4 Kg3 Ke3 b6 a4 f5 a3 f6 a2 b7 d2 f7 d3 Na3 Qc7+ Kg2 g3 Kh3 g2 Kg4 Bd7 Kh5 g4 Kg6 g3 Kh7 Kf2 Nf3 g1B Ne1 Na6 b8N Rb1 Qh5 d1B Ng2 d2 Nc6 Bc2+ Kh8 d1B Bc4 Bg4 Qd5 Nh6 Be2 Qf4 Qb3 Bgf5 Na5 Nc7 Ba6 Bc6 Qb5 B6e4 Rh2 Bg6 Qb3 Bef5 Rh1 Ng4 Kg8 Ne5 Qb5 Re1 Rd1 a1N Rd8 Nb3 Ra8 Rb1 Rh2 Bg7 f8Q Nd2 Qfb8 Ndf3 Qb3 Bf8 Q8b5 Nf7 Rh1 Bcd3 Nc2 Bde4 Na1 Bc2 Nc4 Ke2 Rh2 Be3 Na5+ Kf2 Rh1 Bc1 Rd1 Be3 Rd7 Bd2 Rdd8 Bh7+
1n3Q2/q1b1qR1K/3n1n1n/QPq5/b1k1rQRN/2Nrb1bn/P2B4/5b2 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 g4 h5 d4 hxg4 c5 a4 c6 bxc6 d5 cxd5 Bh3 c5 Bg2 c4 Be4 d4 Bc2 Qc7 Bb3 axb3 Qd2 Qa5 Qd1 Qd8 Kd2 Ke7 h4 Ke6 e4 f5 h5 d5 h6 g5 h7 b2 e5 f3 Qc2 c3+ Kd3 f2 Bf4 f1Q+ Ne2 g3 Be3 g4 Rh4 f4 Qa4 f3 Nd2 b1N Qa5 g2 Nb3 g1Q Nd2 c2 Bg5 c1B Bf4 g3 Rh5 f2 Rg5 g2 Rg4 Na3 Nc4 Nf6 Qc5 Ra4 Be3 Nb5 Bd2 Bd7 Rg5 Nd6 Rg7 Qe7 Bc3 Be3 Bb2 Qc1 Qc7 f1B Nb6 Qc5 Nc4 Be8 Kc2 d3+ Kc3 d2 Kd3 d1N Rf7 d4 Qa5 Kd5 e6 Bf2 Ne5 Bg3 Bc1 Ne3 Nf3 Nef5 Bd2 Nh6 Nh4 Qf2 Rc1 g1B Rc4 Rg8 h8Q Rg6 Kc2 d3+ Kc3 Rg5 Qg7 Rf5 Qg4 Rf3 Qf4 Bd7 Qb6 Bb5 Qa5 Qca7 Re4 Qfb6 Rc4 Be3 Re4 Qc5+ Rc4 Qd8 e7 Bc6 e8Q Qde7 Qed8 Bg7 Qf8 Be8 Be1 d2 Kd3 d1N Bd2 Nf2+ Kc2 Nh3 Kd3 Nfg4 Re4 Be5 b5 Nf6 Qg5 Bd7 Rg4 Re4 Qf4 Be6 Qc7 Qc6 Qa5 Kc5 Qe8 Bb3 Qf8 Bg2 Nc3 Ba4 Nf5 Qcb6 Nh4 Bf1+ Ne2 Bg1+ Qe3+ Rd4+ Kc3 Rf4 Qf2 Nde8 Qf3 Bc7 Qe4 Rb4 Kd3 Nd6 Qf3 Rfc4 Qe4 Be3 Qf4 Bg2 Nc3 Rd4+ Ke2 Bf1+ Kf3 Rd3 Rg6 Nh7 Rg8 Nhf5 Kg4 Nh6+ Kh5 Nf6+ Kg6 Re4 Kg7 Kd4 Kh8 Kc4 Rg4 Qc5 Kg7 Nfd7 Kh7 Nf6+
2nqn3/4k1b1/1PQqn1bP/5qr1/QqnB3N/1R1n3B/1rqN4/1bB2K2 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 e4 b5 g4 bxa4 e5 hxg4 e6 fxe6 Ra3 e5 Rg3 e4 Rb3 axb3 h4 e5 c4 d5 f4 a5 b5 g5 b6 d3 h5 e3 h6 e2 f5 d4 c5 e4 f6 a4 c6 a3 c7 a2 f7+ Ke7 Nd2 a1N Rh5 g3 Qc2 b2 Rh1 b1B Bh3 g4 Qa2 g2 Kf2 e1N Bb2 e3+ Kg3 e2 Kf2 Na6 Bc1 Nac2 Ne4 d2 Rh2 d1Q Be3 d3 Nc5 d2 Qa3 Nd4 Qb2 Bg7 Nd7 Ne6 Qc3 Nd3+ Kg3 e1Q+ Bf2 Qc2 Nb8 d1N Nf3 g1Q+ Rg2 Ne3 Nd7 Qgf1 Nh2 Nc4 Qa3+ Qb4 Bd4 Qf5 Nf6 Bd7 c8Q Be8 Qa1 Nac7 Ne4 Ra2 Nf3 Rb2 Ned2 Rh7 Kh2 g3+ Kg1 Qbd6 Re2 g2 Nh4 Rh8 Qa4 Qb4 Kh2 Rh7 Kg3 g1Q+ Rg2 Qgd1 f8B+ Kf7 Qb7 Ne7 Qbc6 Nc8 Rf2 Rh8 Kg2 Rg8 Rf3 Qdd6 Be7 Qd8 Bef6 Qdd6 Bfe5 Ke7 Bf4 Bg6 Re3 Ne8 Rf3 Nde5 Rb3 Nd3 Bfe3 Qdf3+ Kg1 Q3d5 Bf4 Qd8 Kf1 Q5d6 Qa5 Bh5 Qaa4 Bf6 Ndf3 Rg5 Bfe3 Bg6 Bc1 Qfc5 Nd2 Bg7 Bf2 Qcd5 Bd4 Qf5+
rQ2b3/1bq4q/P1kq1B1K/2bnnr2/4B3/3b2q1/1PqQNN2/1Rbr2N1 w - - 0 1 illegal: No proof kernel
3Q1b2/1P1N2rq/2bbK1kn/1nqrR1q1/1N6/2QNb3/2nP1nB1/R5rb w - - 0 1 legal: proof: c4 e5 a4 b5 f4 bxa4 g4 exf4 g5 d5 b3 dxc4 Bb2 h6 Bd4 hxg5 Bf2 g4 Bg3 fxg3 e4 f5 Ke2 Kf7 Ke3 a5 Kf4 g5+ Ke5 c5 h4 a3 h5 a2 b4 c3 b5 c4 h6 g2 h7 a4 b6 a3 Be2 c2 Nh3 c1B Qa4 g1B Qa7+ Bb7 Bd3 f4 Bc2 g3 Bb3 f3 Qa4 g4 Qa7 g2 Ba4 c3 Nf4 g3 Ng6 c2 Kf5 f2 e5 f1B Ne7 Nc6 Ng6 Nd4+ Kg4 Bb5 Qb8 Ra5 Rh5 Nh6+ Kf4 Rg8 Nc3 Rg7 Rb1 a1Q Rh3 a2 Rh5 Bca3 Nd5 c1Q Qd6 Be8 Bc6 Be3+ Ke4 g1N Ngf4 Qf6 Qd8 g2 Rf5 Bad6 h8Q Rg8 Rg5 Nh3 Rh5 Qe7 Rg5 Qc4 Nd3 g1R Rh5 Qc7 e6+ Kg6 e7 Qb5 Rd1 Qc1 Qe5 a1N N5b4 Bd7 e8N Ba8 Qc5 Nf2+ Kd5 Qc3 Rc1 Nac2 Nf6 Be8 Rf5 Qh7 Ra1 Rg7 Bb7 Nc6 Ke6 Na7 Bh1 Bf3 b7 Bec6 Nd7 Qd4 Qc7 Qf4 Qd4 Qg5 Qd8 Qb6 Qc3 Rd5 Re5 Nb5 Bg2 Qd4 Bh3 Bh1 Bg2 Qc5
4Bq1N/2qRn1nQ/P2n2Bb/2r3b1/2R2Pb1/R2b1b2/br2k3/1QK1rn2 w - - 0 1 illegal: No possible last move, all moves rejected
1q1bQ3/3rPrQ1/1Q2RK1N/q5BP/k1q1rBrn/6q1/1nn5/nR1q3b w - - 0 1 illegal: No possible last move, all moves rejected
4B2R/q3N2r/1RKQ1r1q/Qrq3R1/1BP1bn2/2nr2b1/qP1b1kb1/n7 w - - 0 1 illegal: No possible last move
QK1n2r1/5B1n/1R1qb3/B2Q1bPq/1r1P2R1/2b1r1Q1/b3kqn1/1q1N3r w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Na3 bxa3 h6 gxh6 Rb1 h5 Ra1 h4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 b5 e4 f5 d3 h3 a5 f3 a6 b4 g5 h4 a7 h2 Qe2 c3 Qd2 b3 Bg2 h3 d4+ Kc4 Bb2 c5 Rc1 c2 Qd1 a2 Bc3 a1Q Ba5 b2 Be1 b1B Bd2 Kd3 Ne2 c4 Bf1 f2 Bg2 f1Q Ng3 f4 Qh5 c3 Qd1 f3 Qe1 f2 Rg1 h1B Ne2 h2 Ng3 Rh3 Be3 Bf5 Bf4 Ba2 Bd2 Qb1 Qd1 Nf6 Qg4 Nh7 Qf4 Bb4 Re1 c1R Ne2 c2 Nc3 Re3 Nd1 Bc3 Qg3 Qe2 Bf3 f1Q Bh5 Qff2 Bf7 Qh5 Re2 Qdb6 Rg2 Nc6+ Kd6 Qa6 Kc7 Rg8 a8Q Nd8 e5 Qf6 Rg1 Bhd5 e6 h1R e7 Bde6 e8Q Qfh6 Ree1 Qf6 Ref1 Ke2 Qd7 Qe7 Kc8 Qd6 Rg2 Ba1 Ba5 Bc3 Nb2 Re1 Nd1 c1N Rfg1 Nd3 Rh2 Qg4 Rh6 Nf4 Rg6 Qh5 Rh6 Qa6+ Kc7 Ng2 Qdd5 Bd7 Rb6 Bde6 Kb8 Rf1 Nb2 Rc1 Nd1 Rc2 Qc7 Rb2 Qg3 Rb4 Qc7 Nf4 Rg4 Ng2 Qf4 Bb3 Qg3 Ba2 Rb7 Qc6 Rb6 Qd6+
1R1N1b2/6N1/6rq/K6B/2k1q1qP/1n2PR1p/Qn1bbb1n/2r1RrQb w - - 0 1 illegal: No possible last move
5Q1q/kbq1qnb1/1r1p4/1BR1n3/1B4qR/2qr1r2/bNP1PQ1Q/4nK2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 h4 g5 a4 f5 h5 b5 h6 g4 h7 d6 a5 Kd7 a6 Kc6 a7 Kb7 Ra6 b3 Ra3 b4 Be3 d3 Bg5 f4 Ra1 b2 Qd2 b1B Qe3 f3 Ra5 b3 Qe5 b2 Qe6 f2+ Kd1 Nh6 Rc5 Qc7 Bf4 Nf7 Qf6 Nd7 Rd5 Rb8 Rhh5 Ba2 Qh6 b1Q+ Kd2 Nde5 Rc5 Qe1+ Ke3 d2 Rd5 d1R Rd4 Qec3+ Rd3 Bg7 Nh3 g1N Rh4 g2 Qf6 Rf8 h8Q g3 a8Q+ Kb6 Bh6 Ngf3 Nf4 g1Q Bh3 g2 Bd7 Ne1 Bb5 Qh2 Qf3 f1Q Qf2 g1Q Qh7 Qb2 Rc3 Bb7 Rc5 Ka7 Nd3 Qg4 Q6f5 Qbb4 Nb2 Qba5 Qh8 Qfh3+ Q5f3 Qe7 Bf4 Qac7 Q3g3 Rfd8 Qf8 Qh1 Qh2 Rd3+ Kf2 Rdc8 Bd2 Re8 Qh8 Rf8 Bb4 Qhf3+ Kg1 Qff6 Qgg2 Qh6 Qg8 Qh8 Kf1 Qe3 Qf2 Qd2 Qh7 Qc3 Qg6 Nh6 Qh5 Rff3 Qe8 Nhf7 Qg8 Be4 Qc8 Rb6 Qf8 Bb7
7R/1bbRb1QR/bb6/4pQK1/1r2bP1n/qk2Pr1B/1B1b2n1/2n2q1N w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 c5 g6 cxd4 a3 bxa3 Nc3 h4 Ne4 fxg6 Bf4 g5 Ng3 hxg3 Bc1 g4 Kd2 Kf7 f4 Ke6 h4 Kd5 c3 Kc4 h5 e5 h6 g5 h7 b5 Nh3 d5 Rb1 d3 Ke3 d4+ Ke4 b4 Rg1 a2 Bb2 a1Q Nf2 d2 Rg2 b3 Rh2 d3 Ba3 g2 Bb4 g1B Be7 g3 Qc1 d1B Rh5 b2 Nh1 g4 Qe3 d2 Bc5 g2 Rh2 g3 Ba3 Be7 Qa7 Kb3 c4 Na6 c5 Rb8 c6 Nh6 c7 Nb4 Qc5 Qf8 Nf2 Nf5 Kf3 Na2 Kg4 Bb7 c8R Nc1 Qc6 Nh4 Nh1 Bb6 Qc7 g1B Bc5 g2 Qd8 Bc7 Bb4 Bgb6 Bc5 g1B Ba3 Bge3 Bh3 Bc2 Ng3 d1N Qd7 Bd3 Qf5 Bda6 Nh1 Bd2 Kh5 Rg8 h8Q Rg3 Qg7 Rf3 Rd8 Ne3 Rd7 Neg2 e3 Qf7+ Kh6 Qc4 Kh5 Qf1 Kg4 Beb4 Kg5 Qa2 Ra1 b1B Bb2 Qa5 Ra2 B1e4 Ra4 Ba3 Rad4 Qa4 Rd8 Bac5 Rh8 Qa3 Rd7 Rd8 Rf7 Rd4 Rd7 Rb4 Bg4 Ng6 R2h7 N6h4 Bh3 Be7+
rb3nb1/1r1n2Q1/1r2r1pK/3R1b2/1B3Rr1/1QP1B3/N2b1Pq1/4bBkn w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 Kd2 Kf7 h4 Kf6 a5 Ke5 a6 Kf4 c3 e5 a7 d5 h5 b5 h6 g3 h7 e3+ Kd3 a2 Ba3 b4 Rb1 a1R Nf3 g2 Bc1 g1R Bb2 b3 Be2 g6 Rh2 Rg4 Qc1 Ra6 Ng5 Re6 Nf3 Bd6 Rh6 Qg5 Bd1 e4+ Ke2 d3+ Kf1 d4 Rh2 d2 Ke2 d3+ Kf1 Nd7 Ba1 b2 Rh6 Nf8 Rh2 Nf6 Ne1 Bb8 Nc2 N6d7 Be2 d1N Rh4 d2 Nb4 Qd5 Bc4 Kf3 Qc2 Rg8 h8B Rg7 Rc1 b1R Na2 Rbb6 Bb2 Rf7 Be5 Qb7 Bg3 e2+ Kg1 e1B Kh2 e3 Kh3 e2 Bd6 Rfe7 Bb4 Ne3 Rd1 Nf1 Bc1 Ng3 Qb3 Nh1 Ba6 Rd4 Re4 Qd5 Kh4 Kg2 Bd3 Kg1 Rf4 Qf3 Kg5 Qg2+ Kh6 Rc4 Rf6 Rg4 Rf4 Rg7 Bc5 Rf7 Be3 Rfe7 Ba3 Rg7 Bb4 Rf7 Rb1 d1B Rb2 Rg7 Rd2 Bc2 Bb5 Bf5 Rd5 Bd2 Ba6 e1B Bc4 Bc7 Bf1 Ba6 Ba5 Bc4 Bb4 Rc8 a8Q Bb8 Qb7 Ne5 Rc5 Bc7 Re4 Ree8 Qc2 Ra8 Qd1 Bg8 Rf4 Bb8 Qb3 Ree6 Rd5 Rf7 Qe7 Rg7 Qf6 Rgb7 Qg7 Ned7
2bQ2Nr/1P1Rn2k/4Bb1N/2Pb2p1/Q3n1r1/rr1rQ3/Rr6/n2Kq1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 g5 h4 d5 e4 f5 b4 Kf7 b5 Kg7 c5 a5 h5 d3 b6 d4 e5 f3 b7 a3 h6+ Kh7 e6 f2+ Kd2 g3 e7 a4 e8Q a2 Qeh5 a3 Qhe2 f4 Nf3 g2 Qb3 g1R Kd1 d2 Nc3 Bg7 Ne1 f3 Qd5 Nf6 Na4 Rg4 Rh2 Ne4 Bb2 Bf6 Nd3 Nc6 Qe5 Ne7 Bh3 f1B Nb6 f2 Nd7 Bg2 Bc3 f1R+ Qe1 Ra6 Nf2 Rb6 Qf4 Rb2 Rb1 a1R Ba5 Rh4 Ng4 Rf3 Qee3 a2 Rc1 Rab1 Bb4 a1N Bc3 Kg6 h7 Qa5 Nh6 Rg4 Bb4 Rb3 Bc3 R1b2 Rc2 Qa2 Rc1 Qb1 Ba5 Bg7 Nf6 Ra3 Nfg8 Bf6 Qe1 Rfb3 Qee3 Rg3 Be6 Rg4 Qc7 Bh1 Qc6 Bg2 Qa4 Bh1 Ke2 d1R+ Rc2 Qc1 Be1 Rdd3 Rd2 Qb1 Bg3 Qg1 Be1 Rdc3 Kd1 d3 Rdf2 Bg2 Rf5 Bh1 Rd5 Kg7 Rc2 d2 Rd7 Rd3 Ke2 Rb1 Ra2 R1b2 Kd1 Nd6 Qc6 Bd5 Qa4 Ne4 Rd6 Nc6 Ne7 Rf8 Rd8 Rf7 Neg8 Kg6 h8Q Ne7 Rd6 Rh7 Rd7 Bd4 Nf6 Be5 Qd8 Rh8 Nfg8 Bf6 Qf8 Kh7 Qd8 dxe1Q#
3qB2B/1P3rrr/rp2NQQ1/4nRb1/3qbrq1/r1k3b1/2B4P/1n3R1K w - - 0 1 legal: proof: f4 b5 g4 e5 d4 exf4 g5 c5 g6 cxd4 Bd2 hxg6 Be3 g5 Bc1 g4 b4 Qa5 a4 bxa4 Na3 Bb7 Nc4 Qb6 b5 Qd8 b6 Bc8 b7 Bd6 Nb6 axb6 Ra3 Bc5 Ra1 Bf8 Kf2 Ke7 Kg2 Kf6 c4 Ke5 e4 g5 c5 d5 c6 f5 c7 f3+ Kg3 a3 Ra2 f4+ Kf2 d3 Bb2+ d4 Qc1 d2 Bh3 d1Q Qc2 Be7 Qe2 Nc6 Qa6 Bf5 c8Q Nf6 Qc4 Rh7 Bc1 d3 Re2 d2 Bg2 a2 Bh3 a1R Re3 Nd5 Qd7 R8a3 Qc8 Nc3 Qa8 Nb1 Qf7 Kd4 e5 Be4 e6 Ne5 Re2 Kc3 Re1 g3+ Kf1 g4 Bg2 f2 Qe8 Bg5 e7 Qf3 Qf7 d1Q e8B Q1d4 Qe6 Ra6 Qf5 R1a3 Qg6 Qfd1 Bh3 Q1a4 Nf3 g2+ Ke2 g1R Rf1 g3 Bf5 g2 Bb2+ Kb3 Qf6 Qad7 Bfg6 Qg4 Qb8 Kc2 Qbd6 Kb3 Rc1 f1R Rc5 Rc1 Bf5 Rc4 Qg6 Kc2 Qdf6 Kb3 Rd5 Rcc7 Ba1 Rf1 Bb2 g1B Rc5 Rcg7 Ba1 Bd5 Bc2+ Kb4 Ra5 Be4 Rd5 Bf2 Bb2 Nd7 Rf5 Bg3 Ba1 Rf2+ Ke1 Ne5 Rf1 Qd3 Nd4 f3 Ne6 Q3d4 Rg1 Re2+ Kf1 f2 Bb2 Ree3 Rh1 Rf3 Kg2 f1R Rg1 Kc4 Kh1 R1f2 Rf1 Rf4+ Kg1 R2f3+ Kh1 R3a4 Ba3 Kc3 Bd6 Ra3 Bf8 Rd7 Bg7 Rc7 Bh8 Rcg7 Kg2 Rf2+ Kg1 R2f3+ Kh1 R3a5 Qe7 Ra3 Rf7 Rf6 Nf8 Re6 Rf5 Rf6 Ne6 Rff7 Qef6 Rf4+
kb4rq/3q2NB/2N1q1Kn/qbQP2p1/2bBBq2/5bPr/8/b1Q1n2R w - - 0 1 legal: proof: b4 e5 c4 d5 a4 dxc4 f4 exf4 a5 h5 b5 h4 b6 h3 g3 axb6 Ra3 bxa5 Rf3 a4 Rf2 a3 Rg2 hxg2 Kf2 Kd7 Kf3 Kc6 Ke4 g5 h4 b5 d4 Kb7 e3 c5 d5 f5+ Ke5 a2 h5 a1B+ Qd4 f3 h6 f4 h7 c3 e4 c2 Ne2 g1Q Rh5 c4 Nd2 c3 Bg2 b4 Nf1 f2 Bh3 b3 Nh2 f1B Qc5 b2 Qb4+ Qgb6 Bd2 c1Q Rh4 b1Q Qb3 c2+ Qb2 f3 Bf4 f2 Be3 Qe1 Nd4 c1Q Ne6 Na6 Kf5 Qd7 Kg6 Nb4 Ng4 Bc4 Bd4 f1B Ne5 Qa5 Bg2 Bd6 Rh1 Qf4 Ng7 Nh6 Nc6 Bb8 Qc1 Nc2 e5 Qb2 e6 Bfe2 e7 Bf3 e8B Qee6+ Bf6 Rg8 h8Q Ne1 Qh7 Rh8 Qg8 Bb5 Qf8 Rg8 Qe7 Ra7 Qd6 Ka8 Qdc5 Bca6 Bf7 Rc7 Be8 Rc8 Bf7 Rh8 Bg8 Qbc3 Bh7 Rcg8 Bh3 Bc4 Bf5 Bab5 Be4 Rd8 Nf5 Nf7 Bg8 Rh3 Bh7 Qce5 Nd6 Nh6 Ne8 Qg8+ Bg7 Qh8 Bf6 Qee7 Ng7 Rg8 Bd4 Qee6+
Q3q3/q1QB2K1/qP2qn2/1q1Q4/1rr3PN/1nnp1nb1/2R3B1/nb2N1k1 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 h5 Ra3 h4 Rg3 hxg3 b4 f3 Bf4 gxf4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Ke5 c4 a5 h4 d5 e4 a3 h5 g2 b5 a2 b6 a1N c5 a4 c6 f2 c7 f3 h6 Kf4 e5 Kg3 e6 a3 h7 a2 e7 f4 e8Q Nc6 Qd2 Na5 Qde2 Bd6 Qc6 Qe8 Qe7 Nf6 Qcd7 N5b3 Qg7 Ra4 Qe6 Rb4 Qe3 Bf5+ Qe4 Bg6 Nh3 g1N Be2 Kg2 c8B f1Q Bf5 Qe1 Qe5 f2 Qa7 f1Q Nd2 f3 Qe4 Bg3 Qc7 Rf8 Qee5 f2 h8Q Nf3 Ng5 Qe6 Rh5 Rc8 Rh2+ Kg1 Qe4 Qe8 Bd7 Bh7 Qf4 Rcc4 Qc7 Nc2 Qf5 a1Q Qg8 Qe6 Qa8 Qa7 Qe4 Nca1 Qf5 Qh3 Bf1 Qh5 Bg2 Bg6 Nge4 Qe8 Nd6 Q1e6 Qe4 Bh7 Nf5 Bg6 Nh4 Qhf5 Ke2 d3+ Ke3 f1Q Qee5 Qc6 Qe4 Qfe6 Qee5 Qb5 Qe4 Bf2+ Kf4 d4 Qed5 Be1 Ne4 d2 Nf2 d1N Nd3 Bf2 Ne1 Bf5 Bc8 Nc3 Bd7 Nfd2 Kg5 Nf3+ Kh6 Bb1 Kg7 Bg3 Bh3 d3 Rc2 Qf2 Bf1 Qfc5 Bh3 Qba6 Bg2 Qcb5
n7/nn1Br3/1q1qbn1k/1rRN3B/4P3/2PK1B2/nNp3bb/3QQbr1 w - - 0 1 legal: proof: f4 a5 h4 e5 b4 axb4 h5 exf4 h6 c5 Rh4 c4 Rh5 gxh6 Rh4 h5 Rh1 h4 Bb2 d5 Kf2 d4 Ke1 c3 Rh2 cxb2 Rh3 Ne7 Rh1 Ng8 a4 d3 c3 Qb6 Na3 Qf6 Rc1 Qd8 Rc2 dxc2 d4 b1R Kd2 f5 e4 Kf7 g4 Kg7 d5 h5 a5 b5 a6 h3 g5 h2 a7 f3 g6 b3 d6 h4 d7 b2 Nh3 b4 Nc4 f4 Nf2 b3 Nd6 h3 Ba6 Kh6 g7 Nc6 Qc1 Nf6 g8B Rb8 a8B Nb4 Be6 Rh7 B6b7 Re7 Rg1 h1N Bg8 h2 Bgd5 Ng3 Qe1 h1B Bc4 Na2 Rf1 Nf5 Nd3 f2 Qc1 f3 Rd1 f1N+ Ke1+ N1e3 Kd2 f2 Bba6 Rb5 B8b7 Bg2 Nf4 Ned5 Nh5 Nb6 Be2 Na8 Nc4 Nd6 Bc6 Nb7 Nf4 Qb6 d8Q Be6 Be8 Qd6+ Nd5 Ra1 B8h5 b1N+ Ke3 b2 Bef3 Na3 Rd4 b1Q Qe1 Qbb4 Nb2 Qb6 Kd3 Q4d6 Rc4 Rc1 Qe2 Rg1 Qd7 Rb4 Rc5 Nb5 Qd8 Na7 Bb5 Bg7 Bd7 Rb5 Kd4 Nh7+ Kc4 Be5 Kd3 Nf6 Qd1 Bf4 Qg8 Bh2 Qg5+ Kh7 Qe3 Kg7 Qee2 Kh6 Qee1 f1B+
1N2n2B/2n1R2Q/3rb1P1/1nnPr1qp/1N1bN1k1/2n2b2/1K3Q2/q2qR1q1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 h4 g5 a3 gxh4 e3 c3 Be2 Ra7 Bc4 Ra8 Ba2 b3 Qf3 bxa2 Qh5 Nd7 Qd1 Nb8 g4 Kd7 d4 Ke6 g5 Kf5 a4 c5 d5 h5 g6 b5 a5 f3 a6 c4 e4+ Kg4 e5 f5 a7 h3 e6 h2 e7 f4 e8N b4 Bb2 b3 Nd6 c2 Kd2 c1N Kc3 Ne2+ Kb4 f2 Ka3 f1Q Qc1 f3 Qe3 c3 Qd2 c2 Be5 c1N Qc2 f2 Qc7 b2 Qe7 Nd4 Ne2 Nb5+ Ka4 Bg7 Qf6 Qg1 Nec3 f1Q Nb7 Nb3 Na5 Nc5+ Kb4 Be6 Nc6 Qd1 Nd2 b1N Qf2 Qg5 Nde4 Nba6+ Kc4 Rd8 a8Q Re8 Qa7 Nac7 Nb8 Nf6 Bd4 Rd8 Qb7 Rd6 Be5 Qg3 Re1 h1B Re2 Nfe8 Re1 N7a6 Qbf7 Bf6 Qh7 Qg1 Re2 Nac7 Re3 Rf8 Re1 Be7 Bh8 Rf5 Re2 Bf6 Kb4 Nd2 Rc1 a1Q Na2 Bf3 Rb1 Qc2 Rbe1 Nb1 Re3 Qd2+ Kc4 Bd4 Nb4 N1c3 R3e2 Nd7 Kb3 Re5 Re3 Qa7 R3e2 Qd1+ Kb2 Nc5 Re3 Be2 Rf3 Qa6 Rf7 Bf3 Re7 Qaa1#
rQb5/2rr3n/1N1rP1q1/1P1bQ3/R1pn4/4nR2/1B1kBb1K/1Q1r1b1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 Kg2 Kf6 b4 Kg5 d4 a5 e4 f5 b5 c5 h3 a3 d5 a4 d6 a2 e5 c3 d7 a3 e6 c2 Qd6 g3 Rh2 Nc6 Qe5 Nd4 Qd5 Rh7 Qe4 Qf6 Bc4 Qg6 d8Q+ Nf6 Nd2 f3+ Kh1 f2 Qe3+ f4 Ne2 f1B Qd6 Bg2+ Kg1 Bd5 Rf2 g2 Qb3 f3 Bb2 c1R+ Rf1 f2+ Kh2 g1R Re1 f1B Rb1 a1N Qc7 a2 Qc6 Nac2 Qe8 a1R Qd8 Ne3 Ng3 Kf4 h4 R1a6 h5 Rd6 h6 Rc2 Be2 c4 Nf3 Rd2 Ne5 Rd7 Red1 Bc5 Nh1 Nef5 Qc7 Rd8 Rdc1 Nc2 Qc3 Qe8 Qd3 g5 Qg7 g4 Qb3 Bfg2 Qa2 Ke3 Ba3 Qg6 Qa7 Bc6 Ra1 R2d6 Ng3 Rc7 Nh1 Kd2 Qb1 Bcd5 Bb2 Re1 Nd7 Bf1 Ra2 Bf2 Ra4 Nfd4 Nb6 R8d7 Qb7 Rd1 Qb8 Na1 Rc3 Nac2 Rf3 Ne3 Ng3 Be1 Nh1 g3+ Kg1 g2 h7 Bh4 h8Q Bf2+ Kh2 Nh7 Qe5 gxh1Q+
2QQ3K/1bqr2r1/bPnP2R1/bN2R1rr/N5Bq/1k3r2/n1bQ2p1/1n6 w - - 0 1 illegal: No possible last move
B1bb1q2/4rpQ1/1n1N1r1q/6bP/1NQ5/b1Kr1nn1/P5Qn/k1nR3R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 c4 Kf6 e4 Ke5 h4 b5 c5 d5 c6 g5 c7 b3 h5 b2 Kc2 b4 Rh4 d3+ Kb3 Kd4 e5 g2 e6 d2 e7 Rh6 e8Q Ba6 c8Q Nf6 Bc4 Nbd7 Nh3 g1B Na3 b1Q+ Ka4 Kc3 Qb7 Kb2 Qb5 b3 Qb7 g3 Qb5 d4 Qf3 d1N Nc2 g4 Bd3 g2 Qf1 g3 Qg5 Nf2 Qee2 Nh1 Qee1 Qc1 Qge5 Ng4 Qb5 Bc8+ Qea5 Be3 Nb4 g1N Nd5 g2 Ne7 Ng3 Kb4 Nb6 Bh7 d3 Bf5 d2 Be6 d1R Ng5 Rd3 Nh3 N1e2 Ng1 Ra7 Rh1 Nh2 Qc4 Qe8 Qaf5 Rf6 Qh7 Beh6 Qc7 Qg5 Rd1 Nc1 Qc6 Ka1 Qc4 Qg6 Bd5 Bg5 Qg7 Qh6 Nh3 b2 Nf4 b1N Ba8 Nd2 Nd5 Ndf3 Qc5 Qd8 Nf5 Be7 Qf2 Qf8 Qe2 g1B Qg2 Bd8 Nd6 Re7 Qc4 Rd2 Kc3 Bc5 Qa6 Ba3 Nb4 Rd4 Qc4 Rd3+
bqb5/B2P2p1/1R1nQ1B1/2b3Rn/P2r4/B1NQq1r1/Kq1q3n/2kbq3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 h4 Kd7 f4 Kc6 d4 Kd5 Kd2 c5 Kc2 b5 Kb2 e5 a4 g3 f5 g2 h5 e3 f6 Ke4 h6 b3 d5 e2 f7 e1Q h7 b4 d6 Nh6 Na3 c3+ Kb1 c2+ Kb2 c4 Bg5 Qe3 Qe2 Nd7 Nf3 g1N Bg2 Nf6 Rd1 c3+ Ka1 c1Q+ Nb1 b2+ Ka2 b3+ Ka3 c2 Re1 Nh5 Rf1 Nf5 Qa6 Qcd2 Ne1+ Nf3 Bh6 c1Q Rh2 Qcc2 Bh3 Be7 Rhf2 Nh2 f8B Qdc7 Bf4 Qb8 Ng2 Kd4 Qb7 Kd3 Qc6 e4 Nc3 b1B Rg1 b2 Qd7 Ra5 Qe6 Rd5 Be5 Ba2 Bd4 b1B Ba7 Rd4 Rf4 Bd5 Ne1+ Kc4 Rf3 Ba2 Rg5 Bb3 Qd7 Ba8 Nd3 Qee2 Rf1 e3 Rb1 Qee1 Bg2 e2 Be4 Qg3 Qd8 e1Q Qe8 Qge3 Qd7 Nh6 Bg6 Nf7 Rb2 Qcb1 Qd8 Bd1 Rb6 Qbc2 Qe8 Bf6 d7 Nd6 Be7 Rf8 h8Q Be5 Rb7 Rf3 Qh7 Rg3 Rb2 Bf6 Bf8 Bd8 Ka2 Bb6 Qe7 Bc5 Qe6+ Rd5 Ka1 Kd4 Rb1 Kc4 Nb2+ Kb3 Be7 Qcd3 Bf8 Kc2 Ka2 Qde4 Nd3 Rd4 Rb6 Qf5 Nb2 Kc1 Be7 Qfc2 Bf8 Nf4 Qhh3 Nh5 Qf1 Rc4 Qd3 Rd4 Qef5 Nb7 Rd6 Bb4 Rb6 Be7 Qe6 Ba3 Bb4 Nd6 Ba5 Bc5 Bb4 Rg2 Ba3 Rg1 Qec4 Rg3 Qe6 Qxb2+
2NRb1Kb/Pq5r/2n1qQQ1/qBr5/1bP2Bb1/1k3rb1/5p1N/4rnN1 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 Kd2 Ke7 Kd3 Ke6 Kc4 b5+ Kd3 Kd5 h4 g5 e3 f5 a5 f4 a6 f3 h5 g4 h6 b3 a7 b2 c3 b4 h7 b3 Bd2 Bb4 Qe2 Ne7 Be1 Nbc6 Qd2 Nf5 Rh5 Qa5 Na3 b1R Rh1 b2 Rh3 Rc1 Qd1 b1Q+ Kd2 d3 Nc2 Kc4 e4 d5 e5 d4 e6 Kb3 e7 Ne3 e8N Bd7 Nc7 Raf8 Ne2 g1B Nb5 g2 Rh6 g3 Rh4 Bf2 Ng1 Be8 Nd6 Rf7 Rh3 Rhf8 h8Q Rh7 Nc8 Rf4 Ne2 g1R Qf6 g2 Rh4 Rh1 Ng1 Bg3 Rh5 f2 Rd5 Rf3 Rd8 Be5 Qg6 Bh8 Qf6 R1h5 Qg6 Rc5 Qe2 Nf5 Qe5 Ng3 Qef6 Qb2 Nh3 Qb1 Ne3 g1B Ng4 Bh2 Be2 Nf5 Ng1 Bg3 Nh2 Ne3 Qff5 Ka4 Qgf6 Qb3 Q5g6 Qe6 Bd1+ Ka3 Ba4 Ra1 Bb5 Kb3 Rd5 Ra4 Rd8 Nf1+ Kc1 Ra2 c4 Re2 Bd2 Re4 Bf4 d2+ Kb1 d1B Kc1 Rd3 Kb1 Bg4 Kc1 Rf3 Kd1 Ne3+ Ke2 Ree5 Kd3 Nf1+ Be3 Rff5 Bf4 Re1 Bh6 Rf3+ Be3 Ne5+ Ke4 d3 Kd4 d2 Bh6 Ne3 Bf4 d1Q+ Ke4 Qe2 Kd4 Qea6 Ke4 Nf1+ Kd4 Rcc7 Kd5 Qb7+ Qc6 Bh5 Ke6 Qe4 Qd6 Rc5 Qf8 Qe3 Qfg7 Nc6+ Kf6 Bd7 Kf7 Bhg4 Kg8 Be8 Q7f6 Qe6+
1BN1Br2/qRn1qb2/1QQb4/1b4q1/1P1n4/5rPq/p1KN1k1B/1nn1r3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 b4 b5 g3 exf4 e3 bxa4 Nd2 f3 Nb1 g5 Qd3 h5 Qf5 h4 Qf4 gxf4 Ra3 h3 Rd3 Qa5 Rd2 Qd8 Rg2 hxg2 Kd1 Ke7 h4 Kd6 c4 Ke5 c5 Ke4 c6 a5 c7 d5 h5 f5 h6 d3 h7 d2 Be2 a3 Rh3 a4 Bb5 d4 Bd7 f2 Nf3 f1Q+ Ne1 g1N Rh4 a2 Bb5 a1Q Rh3 f3 Kc2 d1N Nd3 a3 Rh5 f4 Bd7 f2 Rh1 Kf3 e4 Nh6 e5 Qh3 e6 f1B e7 Na6 e8Q Nc3 Nf2 d3+ Kb3 d2 Bb5 d1R Bb2 Nge2 Bc4 Nc1+ Kc2 Bd6 Qe1 Qg5 Bg8 Be6 c8Q Bb5 Ne4 Nf5 Bf7 Nc7 Be8 Bf7 Qg1 Re1 Qb6 Rf8 h8B a2 Be5 Ra3 Qd7 Qe7 Qdc6 Nd4+ Kd2 Qg4 Rh7 Qgg5 Rg7 Kg2 Rh7 f3+ Bf4 Nf5 Kc2 f2 Nbd2 Nb1 Bd4 f1Q Bg1 Rf3 Bh2 Qh8 Rg7 Qh3 Rh7 Qf2 Be5 Bc5 Nd6 Qd4 Nc8 Kf2 Rh4 Qde3 Rd4 Qa3 Rd7 Qa7 Bd6 Na6 Bb8 Nc7 Qa5 Bd6 Qaa6 Nd5 Rb7 Nc7 Qab6+ Nd4+
NqQ2b2/Kn1n1bk1/3q2P1/n7/Pb2Q1r1/BN3p2/2r1r2Q/qn1q1RR1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 a3 gxh4 e3 Nh6 Bc4 Ng8 Ba2 b3 Kf2 bxa2 Ke2 Ra7 Ke1 Ra8 Ke2 b5 Kd3 d5 c4 f5 g4 Kf7 c5 h5 e4 h3 e5 h2 e6+ Kg7 a4 h4 c6 h3 e7 f3 e8Q f4 c7 f2 g5 f1Q+ Qee2 b4 g6 f3 Nd2 b3 Nc4 b2 Na3 b1N Nc4 Rh4 Bd2 Nd7 Bg5 Rg4 Qb3 Ne7 Ne3 Nc6 Qb6 Na5 Kc2 d3+ Kb2 d2 Qeb5 d1Q Q5c5 d4 Qb7 d3 Qb8 d2 Qf5 Bb7 c8Q Qc7 Be7 Bd5 Bd6 Bf7 Qb4 Qa6 Qd3 Nb7 Qbe4 Ra7 Be7 Qad6 Qe2 Ra6 Nd5 Rc6 Qg2 Rc2+ Kb3 Rg3 Ne2 Rg4 Rg1 h1Q Rf1 h2 Qf2 Qg1 Qg3 h1R Nc1 Rh2 Qgf4 Re2 Qh2 Qa6 Kb4 Qad6+ Kb5 Qe1 Bg5 d1N Rf2 Nd2 Rb1 a1B Nb3 Nc4 Nb6 Nc3+ Ka6 Nca5 Bc1 Bb2 Rg2 Ba3 Ka7 Bb4 Ba3 Qgd4 Rc1 Nb1 Rg1 Qa1 Na8 Qed2 Rce1 Qd1 Ref1 Qb8+
n4qB1/2Qb1R1B/4PbN1/1q5K/r5n1/2p1q1qk/B2n1P1r/R2br1Qn w - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 axb4 Nc3 d5 Be3 dxc4 d5 e5 Bd4 exd4 e5 Be7 Ne4 fxe4 Rb1 Bc5 Ra1 Bf8 Ke2 Kf7 a4 Kg6 g4 Kg5 d6 b5 d7 c5 e6 h5 a5 d3+ Ke3 b3 a6 b2 a7 b1N Bh3 d2 Qa4 d1B Qc2 b4 Qc1 b3 Bg2 b2 Bh3 c3 Ra4 c4 Ra6 c2 Ra4 c3 Ra6 Nf6 Bg2 h3 Rd6 Kh4 Kf4 e3 g5 e2 g6 e1R g7 h2 g8B Na6 Rd2 Be7 Bh3 Nc7 Bh7 Ng4 Be4 Bf6 Bh7 Qf8 d8Q Bd7 Bg8 Rh6 Rd3 Nd2 Rf3 b1Q Ne2 Qb5 Rf1 h1N Qa1 Ne3 Bf5 c1Q Bfh7 Ng4 Qe7 Qc2 Qc5 Qcd3 Rg1 Qdd6+ Kf5 Qh2 Nf4 Qg3 Ng6+ Kh3 Rf4 h4 Qe5 Rd8 a8B Qe3 Bc6 Ra8 Bd5 Ra4 Ba2 Na8 Rf1 Kg2 Qb1 h3 Qc1 h2 Qa1 Bg7+ Kg5 Kh3 Qb1 Qg3 Rf7 Bf6+ Kf5 Re2 Ne7 Bb3 Rd1 Qe3 Re1 Kg2 Qc1 Rh4 Kg6 Ng3 Qd6 h1Q Nd5 Qh2 Qc7 Nh1 Ne7 Qhg3 Rf1 Rh2 Qe1 Qa6 Qd1 Kh3 Kh5 Qab6 Ng6 Qa6 Qc2 Qc6 Ra1 Qcb6 Qd1 Qb5+ Qc5 Bc2 Qg1 Re1 Qe5 Bd1 Qc5 Qb7 Qc7 Qb5+
kn1b4/rr3n1Q/2P2RN1/N3q3/QKRB1q1Q/P1p4r/rn1bb3/1n4q1 w - - 0 1 legal: proof: c4 e5 b4 c5 d4 h5 f4 exf4 g4 hxg4 b5 cxd4 c5 a6 Bg2 axb5 Bd5 Ra7 Be6 Ra8 Bc4 bxc4 Kd2 f5 e4 g5 h4 d5 e5 Kd7 c6+ Kc7 h5 b5 a3 g3 e6 f3 e7 b4 e8Q f4 h6 f2 h7 f1R Bb2 f3 Kc2 g4 Rh6 c3 Kb3 f2 Qe5+ Qd6 Qee2 d3 Qe8 d4 Qc1 d2 Qee1 d1N Qf4 d3 Ne2 g2 Nd2 g1B Nf3 g3 Qd4 d2 Ng5 g2 Qc5 Ra7 Re6 Be7 Qe3 Bd8 Nd4 Nh6 Nf5 Qe5 Nh4 Nf7 Q3e2 Ba6 Qe4 Be2 Bc1 Nb2 Ngf3 d1R Be3 Rb1 Ng6 Bh2 Re8 g1Q Bd4 Bf4 Nd2 Kc8 Nc4 Bd2 Qd1 Re1 Qd3 f1Q Na5 Qff4 Re6 Rf1 Rf6 Rf2 Qg3 Rh2 Qh4 Rh3 Ra2 Rg8 h8Q Ra1 Q8h7 Rg7 Rd6 Rb7 Rd5 Kc7 Rc5 Kb6 Be3 Ka7 Rc4+ Ka8 Qc2 Nd3 Ka4 b3 Bd4 b2 Qb3 b1N Qb5 Nc5+ Kb4 Na4 Rb2 Ra7 Rc2 Nb2 Qa4 Ra2 Rc1 Nd6 Rf1 Rgd7 Rf3 Nf7 Rf1 Qfg4 Rf5 Qgf4 Rf6 Rdb7+
1N1qR1b1/1n3rp1/Q6q/3br1PQ/2n2KB1/1br1n2q/P1k4B/R1n1b1Q1 w - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 g4 h5 g5 a6 b5 axb5 Nd2 bxc4 Ne4 c3 Nf2 Ba3 Ng4 hxg4 Be3 Bb4 Bc1 Bf8 Kf2 Ke7 h4 Kd6 e4 Kc5 e5 Kb4 h5 d5 h6 f5 e6 b5 h7 c2 e7 Kc3 e8Q g3+ Kf3 b4 Rh5 g2 Ba3 c1N Rh2 b3 Rh6 b2 Qe7 b1B Qd6 d3 Qg6 d4 Bc5 d2 Rh5 d3 Qa4 d1B+ Be2 d2 Bf2 Bb3 Qd4+ Kc2 Rh1 d1N Qa6 Bce6 Rh3 Ne3 Rh5 Nc4 Qb5 Bb4 Be1 Nd7 Qdd5 Ra3 Qbb7 Ngf6 Qdc6 Ng4 Bg3 Be1 Qbb6 Bg8 Bf1 Ne3 Qe6 Nc5 Qd7 Nb7 Ne2 g1Q Qb4 Qh2 Qb6 Ra5 Qde6 Re5 Rh6 Qh4 Qc8 Qh2 Rd6 Qh6 Rd4 Bd5+ Re4 Rf8 h8Q Rf7 Nd4+ Kd2 Qa6 Qhb6 Be2 Nf1 Qh7 Re8 Qh5 Qh6 Kg2 f3+ Kh3 f4 Kg4 f2 Qb5 f3 Rf4 Bh7 Nc6 Bg8 Qa6 Kc2 Bh2 Re3 Rd4 Rc3 Nb8 Re7 Re4 Nfe3+ Kg3 Re8 Qcg4 f1Q+ Kf4 f2 Qg1 Qh3 Bg4 Nca5 Re6 f1R+ Ke5 Rf7 Re7 Nf5 Kf4 Nc4 Rd7 Re2 Re7 Re5 Re8 Nfe3+
1r1B2b1/2B1P2q/1K2nQn1/1p2rP2/1Qq2nkq/3r1nb1/4N2r/1bRNN3 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Kd2 e4 Ke1 hxg6 Kd2 g5 Ke1 g4 a4 f6 Ra3 f5 Rd3 Bc5 Bg2 exd3 e4 Bd6 e5 Bf8 Be4 fxe4 Kd2 Ke7 h4 Ke6 f4 Kf5 c4 b5 e6 d5 c5 g5 h5 g3 a5 e3+ Ke1 b3 a6 b2 c6 g4 c7 e2 Kd2 e1R h6 g2 a7 g3 h7 Nc6 Rh6 Re5 Rh2 Qh4 Qc2 Nge7 Nh3 g1N Qc3 g2 Na3 b1B Qc4 Ng6 Qc3 Kg4 f5 Nd8 Rh1 Bd6 Nf4 Ne2 Qb4 g1N Nc2 Rb8 a8N Bb7 e7 Ne6 c8Q Bc7 Ne1 Nf3+ Kd1 d2 Nb6 Bc6 Qa6 Be8 Nc4 Bf7 Nb2 Bg8 Nh5 N2f4 Ng3 Ba2 Kc2 d1R Qad6 d3+ Kc3 Bb1 Be3 d2 Bb6 d4+ Kb3 d3 Ne2 Rc1 Ka3 d1Q Ba5 Qd2 Nd1 Qc2 Qa6 Bd6 Bd8 d2 Qb6 Qc4 Qd4 Rc2 Qa1 Re4 Qf6 Re5 Rf1 Bf7 Rh1 Re8 h8B Bg8 Bc7 Rec8 Bd8 Rc6 Bg7 Bc7 Bh6 Rd6 Bg5 Qh7 Bh4 Rb2 Bf2 Rdd5 Bb6 Bd6 Bbc7 Rd3+ Ndc3 d1Q Rf1 Qd2 Rh1 Rdd5 Nd1 Qdd4 Qc5 Nh3 Nec3 Bf7 Ng2 Re4 Nde3+ Kh5 Rc1 Bg3 Ne1 Bg8 Ned1 Rh2 Ne2 Ree5 Qd6 Qh4 Qc5 Rd2 Qd4 Qc6 Kb4 Rd3 Ka5 Nhf4 Qb4 Qc4 Ka6 Kg4 Ka7 Ra8+ Kb6 Rb8+
qQ1K3k/1rB1p1n1/1rrPRb1q/RbnQ2P1/1RNq4/6Bb/5nb1/5q2 w - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 axb4 g4 d5 g5 dxc4 Bh3 g6 Bg4 hxg4 Nc3 Qd4 Nce2 Qd6 Nd4 fxe4 f5 Qd5 f6 Qd8 Nf5 gxf5 Ke2 Kf7 Ke3 b5 Kf4 c5 Ke5 g3 h4 c3 a4 g2 d4 f4 h5 e3 d5 c2 a5 f3 h6 c4 h7 e2 d6 e1N a6 c3 a7 b3 Ra5 b4 Ra3 f2 Qd3 f1Q Rh3 b2 Bd2 c1Q Rg3 b1B Ra1 c2 Ra2 b3 Ra5 b2 Nf3 g1Q Qe4 Nh6 Nh2 Nf5 Ng4 Nd7+ Kd5 Nd3 Kc6 Rb8 a8R Rb7 Bc3 Bg7 Rh3 Nf2 Qb4 Nc5 Ne3 Re8 h8B Kg8 Rh7 Ba2 Qa4 b1B Qe4 Bc4 Rh6 Qd2 R8a6 c1R Rb6 Qd4 Rb4 Qh1 Qd5+ Be6 Rg6 Be4 f7+ Kh7 f8Q Bg2 Rf6 Qa8 Rg6 Ba6 Nc4 Qh6 Bd2 Rb6+ Kc7 Bb5 Bc3 Bc8 Re6 Bf6 Bd2 Bcd7 Bf4 Ng7 Bg3 Reb8 Qc8 Qfd1 Kd8 R8b7 Qb8 Qf1 Re4 Na4 Qc5 Qdd3 Na3 Ba1 Rbc4 Ra6 Qd5 Nf5 Bd4 Ng7 Rb4 Bdh3 Bb6 Rc6 Qd4 Kh8 Bc7 Rab6 Re6 Nc5 Qd5 Bf6 Nc4 Qd4
1Qqk3r/P7/Bp1b4/rB1N2rn/P5QQ/Kb1q1qRn/2r2n2/b2n2R1 w - - 0 1 illegal: Other
3qb1BB/q2rQ3/RbQrqn1r/6k1/1q4p1/Rr5P/PNK5/3nRnn1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 e4 Kf6 c4 d5 h3 b5 c5 g5 c6 d3 c7 b3 Nf3 g1Q Nh4 g4 e5+ Kg5 e6 f5 e7 g2 e8R b4 Re1 f4 Ng6 d4 Rb1 f3 Re6 b2 Rf6 f2 Rf4 b3 Qf3 Ra6 Kd1 d2 Ne7 Rhh6 Rh2 Nd7 Qd5+ Ne5 Rh1 Bd7 c8Q Be8 Qdc6 Nf3 Nd5 Bc5 Q8c7 Nh2 Ra1 b1R Q6b6 b2 Kc2 d1R Bb5 f1Q Bc4 Qe1 Nc3 Qee3 Bf7 Qe6 Na4 Qge3 Rg1 Nf1 Qbd6 Ra7 Qcc6 Rd7 Qf8 Qa3 Bd2 Bb6 Bb4 Rd3 Bd6 Rbd1 Be5 Rf3 Bg7 Nf6 Bg8 Rdd3 Re1 Rg3 Nc3 Qa7 Bh8 Rd1 Na4 d3+ Kc3 b1Q Qe7 Qb5 Nb2 d2+ Kc2 Rgd3 Ra4 Qb4 Ra6 Rb1 Na4 d1N Qc7 R3d4 Qc6 R4d6 Re3 Nd2 Ra3 Rb3 Re1 g1N Nb2 Nf1
2Q2bnb/2R2pB1/B1bn1Pr1/1q1P4/qr1k4/1b1NqR2/1n3q2/1RKn2Q1 w - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 d5 h4 dxe4 a4 g5 b5 gxh4 Na3 c3 Nc4 a6 Nb6 axb5 a5 Bh6 Na4 bxa4 Nf3 Bg7 Ng1 Bf8 d4 Kd7 g4 Ke6 f4 Kd5 a6 e5 g5 c5 f5 h5 a7 a3 g6 e3 g7 c4 Bg2+ e4 Bb2 a2 Rc1 a1B Ne2 c2 Ba3 c3 Rg1 h3 Bf1 h4 Be7 h2 Qd2 h1B Bd6 h3 Rb1 c1Q+ Qd1 c2 Rg2 h2 Rb4 Na6 Rb3 Be6 Bc7 Qa3 Ng1 c1Q Rg6 e2 Bh3 Rh6 Rb2 Nc5 Bb6 Qdg5 Bf1 Qce3 Bc7 Qa4 Rb8 Nb7 Rf6 Rg6 Nh3 Nd6 Rb1 Rb8 a8R Rb4 Ra7 Bf3 Ba5 h1N Rc7 Nf2 Qc2 Nd1 Nf2 Qh5 Nd3 Qf2+ Kd2 e1Q+ Kc1 e3 Qc3 e2 Qc4+ Ke4 Qa6 Bg2 Qc8 Bb3 Bb6 Ke3 Ba7 Bc6 d5+ Ke4 Bb8 Qb5 Ba7 Qg4 Be3 Bc3 Bf4 Kd4 Bh6 Ne7 g8Q Qgh4 Qh7 Ng8 Bg7 Qe4 Qh1 Qg4 Bh3 Qeg1 Bf1 e1N Nc5 Qe4 Bd3 Qgg4 Qg1 Qge2 Bc4 Qa4 Ba6 Qeb5 Nd3 Qf3 Ra1 Q3e3+ Kb1 Rg2 Nf4 Qe7 Bh6 Kc5 Kc1 Rg6 Rb1 Be5 Qg4 Kd4 Qg1 Nb2 Nd3 Ng2 Re6 Beg7 f6 Bh8 Bg7 Ne3 Re5 Ned1 Rf5 Qe6 Rf3 Qee3+
1n1bq1Rr/3pP2k/RNB4b/2PbQ3/r1Q5/qB2r3/1n3qK1/q1rb2R1 w - - 0 1 illegal: No possible last move
1nK4B/3N4/1n2B1Pr/6q1/1nP1r1n1/1N2N1nk/qp1pQb2/Qb1R2rq w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ra3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 Kg4 c4 b5 e4+ f3 a5 h5 e5 f5 g3 a2 e6 a1Q e7 d3 Kd6 f4 a6 h3 a7 h4 Qd2 b4 Qb2 d2 Qd4 d1R Bd2 h2 Qe3 b3 Qd4 b2 Be3 h3 Bg2 f2 Be4 f1N Nc3 f3 Na2 f2 Nb4 Nf6 Nc2 Nd5 Qb6 Rh6+ Bg6 Nb4+ Nd4 Qa2 Bd2 Ne3 Qa5 f1N Nf5 Ned5 Nf3 Nb6 N3d4 Ne3 Bc3 Rg1 Nb3 Bb7 Bg7 Be4 Bh8 Bb1 Qa4 Bg7 e8Q Qg5 Kc7 d5 Bf7 d4 Be6 d3 Kb7 d2 Qa6 Rg2 Rd1 h1Q Qaa4 h2 Qe7 N6d7 Kc8 Kh3 g4 Rg1 Qe8 Bd4 Qh5+ Qh4 g5 Ng4 g6 Bf2 Ne3 Nb6+ Kc7 N6d7 Qe5 Qg5 Kc8 Qg2 Qe4 h1N Qf3+ Ng3 Qe2 Qh1 Qa5 Qa4 Qa6 Qab5 Qa2 Qa5 Qa1 Nb6+ Kc7 N8c6 Kb7 Rg8 a8N Qa2 Kc7 Re8 Kb7 N6d5 Nb6 Nb8 Nd7 Nb6+ Kc7 Re7 Kd8 Rf7+ Kc7 Rf3 Kb7 Rf4+ Kc7 Re4 Kb7 Na4 Kc8 Nb6+
2qr4/7n/3NPb2/1P2RqBq/4BB1p/1Q4qQ/Rp1n1rb1/q3knbK w - - 0 1 illegal: No possible last move, all moves rejected
1q1r1qQb/2nQb1rK/4PR1p/8/1R1B4/n1BnNq2/pPb1k2b/3b3Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 d5 g5 dxc4 Ra2 e5 Ra1 exf4 h4 Qd4 Bh3 Qe3 Bg4 hxg4 h5 Qf3 h6 Qb3 h7 Nf6 Na3 Qd3 Nb5 Qd6 Nd4 Ng8 Nf5 Qd8 Nh6 gxh6 Kf2 Kd7 d4 Kd6 e4 f5 g6 c5 e5+ Kd5 g7 Ke4 d5 a5 d6 a3 d7 c3 Rh2 g3+ Kg2 a4 Kh3 f3 Rh1 f4 Kg4 f2 Kh5 f1Q Kg6 g2 Rh3 f3 Rh1 c4 Qd2 f2 Rh2 c2 Qe1+ Kd3 Ra2 c3 Bf4 c1N Rh4 c2 Qb4 Ne7+ Kf6 Rg8 h8Q Nbc6 Qe1 Na5 Rh5 Nc4 Kf7 Nd5 Kg6 Be7 Rh2 Qf8 d8B Bf5+ Kh5 Nc7 Nf3 g1B Rh1 Bh2 Qa5 Ke2 e6 Nd3 Qb5 c1B Ne5 Bd2 Ng4 Bc3 Be5 Qg2 Qe8 f1B Qd7 Qf3 Bd4 Rb8 Ra1 a2 Rc1 Bh3 Rcf1 a1Q Rhg1 a3 Rg3 Bc5 B8f6 Rd8 Qh7 a2 Qd5 Qf4 Ne3 Qd1 Rg4 Na3 Qh1 Be7 Rh4 Bfg4+ Kg6 Qf3 Bfe5 Qb3 Bf6 Qb8 Bfe5 Rh8 g8Q Bg2 Qhf7 Rh7 Qe8 Rf7 Qd7 B2h3 Bg7 Bh5+ Kh7 Bf5+ Kh8 Bfg6 Bgf6 Rg7 Bfe5 Qg3 Rf6 Qf3 Re4 Nf2 Rh4 Bc2 Rhf4 Nd3 Rh4 Be1 Bc3 Beg3 Rb4 Bf4 Bed4 Be5 Bd2 Bg4 B2c3 Qd5 Ng2 Rg5 Bg1 Kd1 Kh7 Qdb7 Rf7 Bh8 Rf5 Be2 Rf6 Qf3 Be5 Rg3 Bc5+ Kd2 Ne3 Bed1 Bc3+ Ke2 B5d4 Rg7+
rr1b3r/2Q1qB2/3pb1N1/3nB3/qN2Q3/Pp1QP1n1/rq1R1K1r/k4b2 w - - 0 1 legal: proof: d4 e5 f4 exf4 b4 h5 g4 hxg4 b5 c5 b6 cxd4 a3 g3 Ra2 g2 Rb2 axb6 Rb4 b5 Rb3 b4 Rg3 fxg3 h4 Ke7 c4 Ke6 c5 Kd5 c6 Kc4 e3+ d3 h5 g5 h6 b5 c7 f5 h7 f4 Rh5 b3 Rh2 b4 Bd2 d6 Ne2 g1Q Bc1 g2 Rh3 g4 Rh1 b2 Ng3 f3 Nh5 g3 Qe2 Kb3 Rh3 Ka2 Rh2 f2+ Kd2 Nf6 Nf4 Nh5 Nd5 Na6 Qf3 Qe7 Rh4 Qh2 Be2 g1R Nb6 f1B Ke1 g2 Nd7 d2+ Kf2 d1Q Ne5 Be6 c8Q Ka1 Nc3 b1R Qc7 Qa4 Qe4 Ng3 Ng6 Rh1 Bc4 b3 Rf4 Nb4 Na2 Nd5 Nb4 Rb2+ Bd2 Bg7 Rg4 Rhb8 h8Q Ra2 Qh7 Bf6 Qd3 Bg5 Rd4 Rh8 Qh4 Bf6 Qhe4 g1R+ Kf3 Bh4 Be1 Qb2 Bc3 Nb6 Rd5 Rh2 Be5 Rhb8 Rd4 Rgh1 Bd5 Beh3 Bf7 Be6 Qdc2 Nd5 Rd2 Qf8 Q2c4 Bd8 Qcd3 Rh8 Kf2 Qe7 Qc8 R1h5 Qc7 Rh2+
1rb3B1/K3bqn1/P1N1q1Bb/1p1kbNnp/5Q2/q2b2P1/rr1N4/6QR w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 h5 d5 f5 d6 fxe4 f3 h4 g3 h3 Nd2 cxd6 Rb1 d5 Ra1 d4 a4 Qc7 Ra3 Rh6 Re3 Qd8 Re2 Rh8 Rg2 hxg2 h4 Qb6 h5 Qd8 h6 b3 h7 Qb6 Nb1 Qd8 Bh6 gxh6 Nd2 Ra7 Rh4 Ra6 Rh1 Ra8 Kf2 Kf7 c4 Ke6 c5 d5 a5 b5 c6 b2 c7 b1B f4 e3+ Ke2 h5 Rh3 d3+ Kf3 d4 Ke4 e2 Qc2 e1Q+ Be2 Nd7 Nc4 d2 Rh1 d1Q Nd2 d3 Kd4 Nc5+ Kc3 Bh6 Kb4 Kd5 f5 e5 f6 e4 f7 e3 f8Q Ne7 Qc3 Ne4 Qa3 Nf5 Bf3 e2 Qf6 Qc1 Qaa1 Ng7 Qf4 Qg8 Bg4 Ra7 Nf3 g1B Bf5 Bd4 Bg6 Ng5 Ne5 Qf7 Nc6 Bc2 Qb1 Be5 Qa1 Rd8 h8N Ra8 Qb1 Rb8 a6 Qb2+ Ka5 Qa3+ Qa4 Rd6 Qa1 Rf6 Qd1 Rf4 Qb1 Rb4 Qa1 Rb2 Qb1 Ra8 Kb6 Rb8+ Ka7 Ra2 Qf4 Rb2 Ne4 d2 Qc1 d1R Nd2 Bd3 Qa1 Qe6 Nf7 Qf1 Nd6 e1B Nf5 Rc1 Qb1 Rcc2 Qd1 Ra2 Qa1 Rcb2 Qc1 Bb7 c8B Qf3 Bd7 Bc8 Bde8 Qf1 Bef7 Qf3 Bg8 Qf1 Nb1 Bb4 Nd2 Be7 Qe1 Qh3 Qg1 Qf7 Nd6 Qhe6 Nf5 Be2 Qge3 Bf1 Qg1 Bd3
Q3bk2/B3N2b/B2Kpn2/1P3q1b/n2QbR2/3N4/pb3Prb/1brB2n1 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 e4 b5 h4 bxa4 e5 gxh4 e6 fxe6 Ra2 e5 Ra3 e4 Rb3 axb3 Ke2 d5 g4 a5 c4 h5 b5 b2 c5 d3+ Ke3 d4+ Kf4 a4 Ke5 h3 g5 e6 c6 h4 c7 e3 g6 h2 g7 a3 Qe2 a2 Qd1 d2 Bd3 h3 Bf1 e2 Bg2 e1B Qe2 d1N Qe3 d3 Na3 b1B Bd5 d2 Qc5 Qg5+ Kd4 Nb2 Qc2 d1B Bc4 Nf6 g8Q Na4 Qgh7 Bd6 Qd2 Bd7 c8B Rg8 Bb3 Nc6+ Kc4 Nd4 Ba6 Kf8 Qh8 Bh5 Ne2 Nf3 Ng3 Ng1 Nc2 Bde8 Nb4 Qf5 Qd4 Bc3 Be3 Bb2 Bd1 Bc7 Nd3 Rc8 Qh7 Rg4 Qd7 Rg8 Qd8 Bf4+ Kb4 Rc1 Qa8 Rg7 Nf1 Rg2 Ng3 Nf3 Re1 h1B Rg1 h2 Re1 Qg4 Nf5 Ng1 Ne7 Qf5 Re2 Rg4 Rc2 Be4 Rc4 h1B Qb7 Be5 Qa8 Nb6 Kc5 Bh2+ Nd5 Rg3 Kd6 Na4 Ne7 Rg8+ Qe5 B1f3 Ba7 Rg2 Rb4 Bg6 Rd4 Bh7 Rb4 Bd5 Rf4 Bh5 Qd4 Be4
bkq1b1B1/1n1r2qQ/3RQ1p1/b2N4/1PqnB1nP/1N6/r2p3B/2r2nK1 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 hxg4 f6 g3 Bb2 g2 Ra3 exf6 Bc1 f5 Rd3 f4 Rg3 fxg3 h4 a5 c4 f5 e4 d5 c5 Kd7 e5 Kc7 e6 f4 c6 f3 e7 d3 e8Q d4 Qe3 g6 Qf4+ Bd6 Nc3 a3 Nce2 f2+ Kd2 a2 Qg4 a1N Rh3 a4 Nf3 g1Q Qe4 g2 Qb3 a3 Qg4 a2 Nf4 Nc2 Nh2 a1Q Ne2 Bb7 Rf3 Qc8 Nc3 Nf6 Ba3 Na6 Re3 Rh7 Qh3 Rd7 Qhe6 Nc5 Nd5+ Kb8 Bc1 Bc7 Nf3 Ra2 Bb2 Ba5 c7+ Ka8 Re1 Ng4 Rd1 Qh2 Qf7 g1R Qh7 Bc6 Bg2 Nb7 Qc4 Qe5 Qb3 Qe6 Qc4 Bb5 Qc6 Qeg8 Qe6 Qg7 Bc3 Qb1 Ba1 Qb3 Bb2 Qc4 Bc1 Qe8 c8B Kb8 Bh1 Rc7 Bd7 Qc8 Be8 Bc6 Bf7 Be8 Bg8 Rd7 Bb2 Na3 Bg2 f1N+ Ke1 Nb5 Nd2 Rh1 Nb3 Rg1 Rc1 Rh1 Be4 d2+ Kd1 Rg1 Rc3 Rh1 Rd3 Rg1 Ke2 d1B+ Ke1 Bf3 Rd2 d3 Be5+ Q4c7 Bh2 Nd4 Rc2 Rh1 Rc6 Bg2 Rd6 Qc4 Qh5 Ne5 Qh7 d2+ Kf2 Bf3 Ne3 Bg2 Bf5 Bc6 Be4 Ng4+ Kg2 Ng3 Nd5 Rc1 Nf6 Nf1 Nd5 Nc5 Kh1 Ba8 Kg1 Nb7
2R1R3/nrn2Qq1/Pk1B2qN/rbb2p2/2p1r3/1bN4P/QRrq4/K1n5 w - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Ba3 f3 Qb3 g3 Bg2 fxg2 Bc1 axb6 Qa4+ b5 Qd1 b4 d4 Kd7 Kd2 Kc6 Kc2 b5 Kb2 g5 e4 f5 a4 b3 a5 b4 e5 g4 e6 Nf6 h3 Nd5 e7 Rh4 e8Q+ Bd7 Qf3 Bc5 Bd2 c3+ Kc1 b2+ Kc2 b3+ Kd1 c2+ Ke1 c1N Nc3 b1R Kd1 b2 Nge2 g1Q+ Kc2 g2 Qf2 g3 Nb5 Re4 Bb4 Kb7 Qg8 Nc6 Nec3 Na7 Rh2 c6 Ra4 Nc7 d5 Rc8 a6+ Kb6 d6 Ra1 Qb3 b1B+ Kb2 Ba2 Qf7 Bb3 Ra5 Rb8 Ra2 Rb7 Ba3 Be8 d7 Qg5 Qc2 Qd2 d8R Qgd4 Bb4 g1R Re2 g2 Rc8 Qg7 Nd6 Re1 Ba3 g1Q Re3 Q1g6 Re2 Ra4 Re4 Bd7 Ree8 Ra5 Bb4 Re4 Ba3 Ne2 Bb4 Rg1 Ba3 Rg3 Ka1 Rg2 Rb2 Nc1 Qb1 Rh2 Qa2 Bb4 Qb1 c5 Qa2 c4 Qf8 Qd3 Nf7 Rc2 Nh6 Qd2 Qf7 Bd6 Bb4 Bb5 Ba3 Bf4 Bb4 Be3 Bd6 Bc5
2R1Kb1r/1r3rR1/pk1nn2r/2N3B1/PpQ5/B1P2Q2/bq2qbQ1/5nq1 w - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 e4 g5 e5 gxf4 g5 d6 Bh3 dxe5 Bg4 hxg4 Nc3 f3 Nce2 Qd4 Nf4 exf4 Kf1 Qb6 Ke1 Qd8 Kf2 Kd7 d4 Kc6 a4 f5 h4 e5 h5 b5 g6 e4 c3 a6 h6 g3+ Ke1 e3 d5+ Kb6 h7 g2 g7 f2+ Ke2 f1N Kf3 b3 d6 b2 d7 b1R Rh3 e2 Rh2 e1B Nh3 g1Q Rc2 Ne7 g8Q Bf2 Rd2 Nbc6 Re2 b4 Qdb3 Rb8 Qbc4 Rb7 Ba3 Qe8 Qg2 Nd8 Ng5 Ne6 Rd2 Rd1 Re2 Rd6 Ne4 Qg6 Rb1 Qh6 Rd2 Qhh2 Rd5 Rc6 Rc5 Rd6 Rc7 Rc6 d8B Bd7 Qh1 Nc8 Bg5 Nd6 Nc5 Be8 Rd1 Bf7 Rc8 Bg8 Qg2 Bf7 Ke2 f3+ Kd3 f4 Re1 Bd4 Re3 f2 Rg3 f3 Rg4 Nd2 Rg3 f1R Rg4 f2 Rg3 Rg8 h8Q Be3 Qg7 Rh8 Qf6 Ne8 Qa2 Nd4 Qe4 Qh5 Bf4 Qhh2 Rg7 Bg8 Qff5 Rch6 Bg5 Nd6 Qf6 Bb3 Qef4 Ne6 Qc4 Bd4 Qc2 Ba2 Qf5 Re1 Qh3 Re4 Qf3 Rf4 Qb2 Rff7 Qc2 Nb1 Qb2 f1Q+ Qbe2 Nf5 Ke4 Nd2+ Kd5 Nd6 Qef2 Qb1 Q2g3 Qe2 Qgg2 Ka7 Kc6 Qb2 Bd8 Bf2 Be7 Nc7 Kd7 Kb6 Kd8 Nf1 Bf6 Ne4 Bg5 Ne6+ Ke8 Nd6#
3b1r1N/2Rb2Pn/1kqpb3/1q1R4/1r2nQ2/BQnNPK1p/3r2b1/1R2q3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 a3 gxh4 e3 Nh6 Bc4 Ng8 Ba2 b3 Kf2 bxa2 Ke2 Ra7 Ke1 Ra8 Ke2 f5 g4 b5 c4 h5 g5 h3 a4 b4 g6 h4 g7 f3+ Kf2 d3 c5 h2 a5 d2 a6 d6 c6 f4 c7 Kd7 a7 Kc6 Na3 h3 Qe2 d1N+ Kf1 b3 Rb1 a1Q Qc4+ Kb6 Bd2 f2 Ke2 f1B+ Kf3 b2 Qe2 Qe8 Qg2 Qb5 Bc3 Bd7 c8R Nf6 Be1 Be7 Rf8 Bd8 Bd2 Nc3 Qg5 Nh7 Rf5 Na6 Ne2 Nc5 Nc2 Rf8 Bc1 N5e4 Ne1 Qaa4 Rg1 h1Q+ Rg2 Qc6 Rd5 Qab5 Nd3 Rc8 a8Q Be6 Ra1 b1R Qa4 Rb4 Rb1 Ra8 Qb3 Ra2 Ba3 Rd2 Nd4 Bd7 Nf5 Qg1 Nh4 Qh1 Nf2 Bc4 Ng6 Qc1 Nd3 Qe1 Rf5 Bce6 Nh8 Rd1 Rc2 Rd2 Kg4 f3 Qf4 f2 Kf3 f1B Rd5 Nd1 Rc4 Ndc3 Rcc5 Qb7 Rc8 Q7c6 Rc7 Bg2#
2q2n1q/2n1bP1b/2rRpq1P/n5n1/1R1Qr2b/1R2KB2/k4pBN/r4Q2 w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 g5 e5 g6 hxg6 Bd2 g5 Bc1 g4 e4 Nh6 f5 Bc5 Nc3 Be7 Nce2 Ng8 Nf4 Ra5 Ne6 Ra8 Bf4 exf4 e5 Bf8 Nc7+ Ke7 e6 Kf6 e7 Rh5 Kd2 Rh8 Ne6 fxe6 Ke1 Kf7 Kd2 g5 e8R b5 h4 d5 a4 g3 c4 b3 f6 f3 c5 g2 a5 b2 a6 b1N+ Kd3 b4 a7 g4 c6 g3 c7 b3 h5 b2 h6 Nc3 Rh4 b1R Qc1 Nb5 Rh2 Nc6 Qc2 Re1 Qc5 Re4 Nh3 g1N Rd2 g2 Rc1 Be7 Rc4 Na5 Rb4 Ba6 c8B Nc7+ Kc2 d3+ Kc3 d4+ Kb2 f2 Kc1 Nf3 Rdb2 g1B Qf5 d2+ Kd1 Bh2 Bd7 Bd3 Qf4 Ng5 Ba4 Qc8 Qd6 Bg3 Ra2 Bh4 Qd5 Kg6 f7 Kf6 Qd7 Ke5 Ng1 Nf6 Rbb2 Nfh7 Ra1 Nf8 Rb4 Rg8 Bc2 Rh8 Qa4 Kd5 Rd8+ Kc5 Qd7 Rg8 Rb3 Kc4 Nf3 Rh8 Rb4+ Kc3 Bb3 Kb2 Rb1+ Ka3 Ba4 Ka2 Bg2 Rg8 R1b3 Bb1 Re3 Bc2+ Ke2 d3+ Kf1 Rh8 Qd4 Rg8 Bc6 d1Q+ Re1 d2 Rd6 Qa1 Reb1 Qb2 Nh2 Rh8 Bf3 d1Q+ Kg2 Qa1 R1b3 Qdc1 Bd5 Qf4 Bb7 Qf6 Bd5 Rb8 a8Q Rb6 Qa6 Rc6 Qad3 Re1 Q3c4 Bh7 Qc1 Re4 Kf1 Rf4 Ke2 Re4+ Kd2 Rg8 Qf1 Qh8 Qdd3 Qaf6 Qd4 Nh3 Kd3 Rg1 Kd2 Ng5 Bg2 Rf4 Bdf3 Rh1 Ke3 Rg4 Qb5 Ra1 Qf1 Re4+
nRr5/1N2P1Kb/nq3N2/2n2k2/Qq2p1p1/r2qQ2r/P2b4/2qBB1Bb w - - 0 1 legal: proof: d4 e5 e4 a5 f4 h5 g4 hxg4 b4 axb4 d5 exf4 e5 c6 Nd2 cxd5 Rb1 Ke7 Rb3 Ke8 Re3 Qe7 Re2 Qd8 Re4 dxe4 Ke2 Ke7 c4 Ke6 h4 b5 c5 g5 h5 f5 c6 d5 h6 d4 c7 f3+ Kf2 b3 Kg3 b2 h7 b1Q Bg2 b4 Nc4 f4+ Kh2 d3 Qe2 d2 Qd1 b3 Qe2 d1N Bf1 f2 Nf3 b2 Kg2 g3 Kh3 g2 Kg4 g1Q+ Kh5 g4 Kg6 Bb4 Qe1 Nc3 Ne3 Ra3 Nd5 Ne7+ Kg7 Na4 Ng5+ Kf5 e6 f3 Be2 f1B Kh6 f2 Rh4 Bg2 Kg7 f1Q Bd1 Na6 Nf7 Bd2 Qe3 N4c5 Nf6 Qdd3 Nd8 Bh1 Nb7 Nd5 e7 Nb6 Rh2 Be6 c8Q Na8 Qe8 Bg8 Qa4 Qe1 Rh4 Qbc2 Rh3 b1R Bb2 Qcc4 Bd4 Rbb3 Rh4 Qc1 Rh2 Ba5 Rb2 Qb4 Bc3 Qf2 Rb1 Qfb2 Be1 Q2d4 Rb2 Qb6 Rb1 Bd2 Rb2 Qdb4 Rb1 Be6 Rb2 Rf8 h8B Rc8 Qg1 N6c7 Nh5 Qe2 Nd8 Qbc3+ Kf8 Qba5 Bd4 Bg8 Nf6 Bh7 Kg7 N7a6 Qg3 Qcc4 Bg1 Re3 Rb4 Qed3 Rb8 Qcb4 Nb7 Qab6 Qf2+ Rf3 Qe3 Rh3
Q3N2R/nq1QP1BK/5RQn/k5b1/P2B1q1p/p2rbq2/7q/rb3r1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 e5 c5 exf4 c6 b4 Qb3 dxc6 Qc2 c5 Qd1 c4 e3 a6 Be2 Ke7 Bf3 Ra7 Bc6 Qd5 Bb5 Qd8 Na3 bxa3 b4 Ra8 Bd7 Bh6 b5 Bg7 b6 Bf8 Bb5 axb5 Nf3 Kd7 Ng1 Ke8 Ke2 Kd7 Kf3 Kc6 Ke4 f5+ Ke5 h5 d4 h3 g4 h2 e4 c3 b7 Kb6 g5 c5 d5 c2 d6 c4 g6 f3 g7 b4 d7 f2 Bh6 f1R Nh3 c1Q Qb3 c3 Qf7 f4 Kf5 c2 Kg6 f3 e5 b3 e6 f2 e7 b2 Ng1 b1Q Qf3 Ka5 Qf6 Qc7 d8Q Qf4 Qdd6 c1B+ Qd3 Be3 Ne2 Nc6 b8B Na7 Ng3 Qbb7 Ne4 Qc2 Nd6 Bf5+ Kf7 Qe2 Ne8 Bh7 Be5 Rd8 Qd7 Bb1 Bd4 h4 Rg1 h1N Rg2 Qh2 Qg6 Bg5 Rg4 Qef3+ Rf4 Rc1 Rf6 f1Q Ra2 Qff4 Rc2 Q1f3 Rc8 Rf1 Rb8 Rc8 Qc2 Rc3 Kg6 Rd3 Rd8 Rf2 Qcc8 Ra2 Qa8 Ra1 Rc6 Nf6 g8Q Ng4 Bhg7 Nh6 Rf6 Rh7 Bh8 Rf7 Bg7 Qh5+ Kh7 Qhf3 Rc8 Qfb8 Rb6 Qfh3 Nc7 Rf1 Bge5 Be3 Rd6 Nf5 Qg6 Bfh6 Bg7 Qhf3 Rf6 Bhg5 Rh8 Nh6 Ne8 Qbf4
7q/kP1RQ1BK/qpbRr1p1/B1nbn1N1/3P3b/3r1n1Q/R4q2/1r2q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 d5 f5 dxc4 f6 exf6 a5 f5 Ra2 f4 Ra3 Ne7 Ra1 Ng8 b4 Nf6 Nc3 Nd5 Na4 Qd7 Nb6 Qc6 Bg2 Qd7 Be4 Qd6 Bc2 Ne7 Ba4 bxa4 b5 Qf6 Nd7 Qd6 b6 Ng8 b7 Qd3 Nb6 axb6 Nh3 Qd6 Ng1 Qd8 Kf2 Kd7 h4 f5 d4 c5 e4 Kc7 h5 g6 a6 a3 a7 f3 Ke3 a2 Kf4 f2 e5 f1B h6 c3 h7 c2 e6 g3 e7 c4 Kg5 c3 Qe2 f4 Qd1 g2 Qg4 f3 Ne2 g1N Be3 c1R Qh5 f2 Rh3 c2 Rh4 Nc6 Bf4+ Ne5 Be3 Rb1 Qf3 c1Q Rh3 Bg2 Qf6 f1Q e8R Bd7 Nf4 Be7 Rh6 Qce1 Bd2 Bdc6 Nh3 Qff2 Rf8 Rc8 a8Q Bgd5 Qa3 Kb8 Re8 Rc7 Qg3 Qc8 Rd8 Ka7 Rd6 Bd8 Rh4 Re7 Qe6 Nf6 Kh6 Rf8 h8B Nfd7 Rf4 Rf5 Bg7 Nc5 Kh7 Qa8 Qf7 Re6 Qe3 Bh4 Ng5 Qd8 Qh3 Qa8 Qc7 Rf8 Rf7 Qb8 Rfd7 Rf3 Qd8 Rd3 Qf6 Ngf3 Qe7 Rb2 Rc1 a1Q Rc2 Qa6 Ba5 Rb1 Ra2 Qh8+
bN1bQ3/1Qr4N/4rqQr/2P1Rrp1/qpr1n3/Bk3P2/r2nK3/5rB1 w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 g5 e5 c5 e6 cxd4 a3 g4 f3 g3 Qe2 fxe6 Qd2 e5 Qd1 e4 a4 Na6 Bc4 Rb8 Kd2 Bg7 Bf7+ Kf8 Bg6 Nf6 Ra3 Ra8 Re3 Nb8 Re2 Ng8 Rf2 gxf2 g4 Bh6+ g5 Bg7 Bf5 Ke8 g6 Bf8 g7 Nc6 Bg6+ hxg6 Qe1 Nb8 Qf1 Qa5 Qd1 Qd8 c4 Kf7 h4 Ke6 h5 f1R c5 Kd5 a5 Kc4 h6 e5 a6 b5 h7 d5 a7 d3 Rh2 d4 Rh6 g5 Rf6 b3 Rf5 b2 Qe1 e3+ Kd1 e2+ Kd2 b4 Nh3 e4 Nc3 b1R Rf6 Kb3 Rh6 Bb7 Qf2 e1R Qg3 Nc6 Ng1 Qf6 Nb5 Na5 Bb2 Be7 Nc7 Bd8 Qh3 Rbc1 Qc8 Rc4 Rh2 Ra1 Qb8 Ra2 Qc8 Rb8 Qe6 Ba8 Nh3 Rc8 Na6 Rc6 Re2 Rc7 Re1 e3+ Kd1 d2 Ke2 d1R Nf4 Rd3 Qe8 Rd1 Ne6 Rd3 Rc1 Rdd1 Nb8 Rde1+ Kd3 e2 Kd2 d3 Nf8 Rd1+ Ke3 d2 Ba3 e1R+ Kd3 Bd5 a8Q Re6 Qb7 Rde1 Qg6 R1e5 Re1 Rf5 Re5 d1Q+ Ke3 Be4 Qe8 Qd7 Qg6 Qa4 Qe8 Nh6 g8Q Nf7 Qg6 Bc6 Kd3 Nd6 Ke3 Ne4 Kd3 Rg8 h8B Bd5 Bg7 Rh8 Ke3 Rh6 Nh7 Rcc1 Kd3 Nc4 Bh8 Ncd2 Ke2 Rcc2 Qb6 Bc6 Rd5 Qf8 Bd4 Ba8 Qb7 Rc3 Re5 Rc4 Bg1 Qf6
B2qr2R/1b3k2/2Bqp3/b2b2Qb/nP1b1b2/p2nP3/QN5r/1b2KB1R w - - 0 1 legal: proof: c4 c5 a4 g5 f4 b5 d4 cxd4 g4 bxa4 Bd2 h6 Bc3 dxc3 Nd2 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 h4 a5 c5 d5 h5 f5 c6 g3 b3 e6 c7 d4 g6 g2 g7 c2 h6 c1B h7 d3 Ra3 f3 Ra2 a3 Rh4 d2+ Kf2 f4 Nh3 a4 Rh6 Kf7 Ng1 Na6 Qe1 d1B Rh4 Bb7 c8B Bb4 Rh1 Nf6 Nh3 Nd5 Bd7 Nc3 Rh2 Ba5 b4 Nc5 Rd2 a2 Bc8 a1B Rb2 a3 Bd7 N3a4 Qd2 g1Q+ Ke1 Qd4 Rb1 Qd6 Nf2 Bd4 Nd3 Bb3 Qb2 B3d5 Bc6 Rc8 Qa2 f2+ Kd1 f3 Nb2 Bh6 e3 Nd3 Rh5 Re8 h8Q Bf4 Qh6 Rc7 Qg5 Rce7 Be2 f1B Rh8 f2 Kd2 Bh3 Rh1 Bg4 Bf1 Bh5 g8B+ Kf8 Qb3 Rh7 Qa2 Rh6 Bh7+ Kf7 Be4 Rh7 Bh3 f1B Bf3 Be2 Bf1 Bg6 Be4 Rh2 Beg2 Ndc5 Ke1 Beh5 Bfb5 Bb1 Bgf1 Ba6 Ba8 Bab7 Bc6 Nd3+
7n/NR4b1/KbPpQbNb/2p5/k1r1bQqB/qrb2P2/6b1/4n1BB w - - 0 1 legal: proof: e4 c5 c4 h5 b4 f5 d4 fxe4 g4 hxg4 a4 Na6 b5 Nb8 b6 axb6 Ra3 Nf6 Rc3 cxd4 c5 Ng8 c6 Ra7 Rc4 Ra8 Rc5 bxc5 Kd2 g5 h4 b5 h5 e5 a5 d6 a6 g3 a7 d3 Kc3 g2 h6 d2 h7 e3 Bc4 g4 Bd3 e2 Be4 e1B Ne2 g1B Nf4 g3 Nd5 g2 Ne7 b4+ Kc4 b3 Kb5 b2 Rh2 Bh6 Rh3 Qa5+ Kc4 Nd7 Qa4 d1Q Rh2 Kd8 Qb4 Kc7 Nd2 b1B Bf5 e4 Nf1 e3 Qb2 e2 Ne3 Be4 Bh3 Rb8 a8Q Rb3 Nf1 Kb6 Bf4 Bc3 Ne3 e1B Qa2 Qg4 f3 Qa3 N3f5 Bgd4 Nh4 g1B Bg2 Bdg7 Bg3 B1d4 Nhg6 Bdf6 Bh4 Ba5 Bh1 Bec3 Qb8+ Ka6 Rc2 Bb6 Rb2 Ka5 Rb1 Ka4 Qc7 Bb7 Nc8 Ne7 Na7 Bc8 Qd2 Re8 h8B Rf8 Qf4 Re8 Nf8 Ng6 Qd8 Re5 Qe7 Rd5 Qe6 Rd2 Qh2 Rc2 Qhe5 Nf4 Rb2 Ng2 Ng6 Ne1 Qf4 Nf8 Rb1 Nh7 Rb2 Ng5 Rb1 Nf7 Rb2 Bf8 Bg7 Nh8 Rb1 Bfd8 Bd4 Bfg7 Bdf2 Bdf6 Bg1 Qg5 Qg8 Bh3 Qe6 Qg4 Rb2 Bg2 Rb1 Qc1 Rb2 Ra3 Rb5 Rb3 Rb4+ Ka3 Kb5 Qa1 Ka6 Qb2 Rb5 Ka4 Qg8 Qa3 Qe6 Bc7 Rb7 Bb6 Bg5 Bb4 Bh4 Rc4 Qef5 B4a5 Qe6 Bac3
6q1/Bk1Nn3/1nnn1rrR/1N4KQ/b1RP4/RpbQ4/n3qPpr/2n5 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kc6 Kf4 e5+ Kg3 b5 a4 g5 d4 b3 h4 c3 a5 c2 a6 b4 h5 b2 h6 e3 a7 e4 h7 b3 Ne2 Kb7 Na3 b1N Rh3 c5 Ng1 e2 Qd2 e1N Bb2 c1N Bc3 e3 Bc4 e2 Bf7 c4 Rh5 Na2 Nf3 Nd3 Ng1 e1Q Nf3 Bd7 Rh4 Ba4 Nb5 Nc5 Rh3 Nc6 Na3 Qe2 Nh4 Ne4+ Kh2 g3+ Kg2 g4 Rh2 Nge7 Nb5 Na3 Bb4 c3 Ng6 c2 Ne5 c1N Bc5 Nc4 Rh6 Ned6 Nd7 Nb6 Bg6 Rb8 a8R Qe8 Kh1 g2+ Kh2 g1R Qd3 g3+ Kh3 Qf7 Kh4 Qg8 Ra6 Ra8 Ra5 Ra6 Kg5 Rg2 Rb1 Rh2 Rb2 g2 Rc2 Ra7 Rc4 Ra6 Rh5 Bh6+ Kf6 Bd2 Rh6 Bc3 Kg5 Ra8 Ra6 Rf8 Ra8 Rf6 Ra5 Nbc8 Ba7 Nb6 Ra6 Qg7 Ra5 Rg8 h8Q Qh7 Ra6 Rg7 Qe8 Rf8 Qf7 Qg8 Qff3 Rf4 Qh5 Rf6 Nc7 Bb5 Ra3 Ba4 Nb5 Rgxg6+
r1KR2N1/2Q2n1b/4Rn2/3N1kqr/p3p1bn/4Qbn1/Bb3PPn/6rN w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 b5 a4 bxa4 b3 c5 h5 cxd4 h6 a3 Bb2 axb2 Be2 gxh6 Bb5 h5 Bf1 h4 Kd2 Kf7 c4 Kg6 b4 a5 c5 e5 b5 h5 c6 d5 c7 h3 b6 a4 b7 h4 Bb5 d3 Ke3 h2 Qf3 d4+ Kd2 e3+ Ke1 d2+ Ke2 d1R Qg4+ Qg5 Kf3 h3 Ke4 e2 Kd5 e1N Qg3 d3 Bc6 d2 Qh4 Nf3 Qg3 Kf5 Qh4 Bg7 Kd6 Rh5 Qd4 Nf6 Ne2 Nbd7 b8Q Rg1 Qe3 d1B Nbc3 b1B Bd5 Nh4 Ba2 Bb7 c8N Bf3 Kc7 Bg4 Nc1 Bdf3 Nd5 Rd1 Qeb3 Bfe4 Nf4 Nd5+ Kb7 Kf6 Rg1 h1N Nfd3 h2 Ne7 Bef3 Nf4 Bh7 Ng8+ Kf5 Kc8 e4 Qe3 Bf6 Nce2 Ne5 Rc1 Nf7 Rc6 Bb2 Re6 Nf6 Re1 Rb1 Rd1 Ra1 Rd8 Rg1 Nd3 Ng3 Ndf4 Nf1 Nd5 Ra7 Qd6 h1N Qc7 Nh2 Rf8 Ng3 Rd8 Ngf1 Ng3+ Kg6 Nh1 Kf5 Re7 Ng3 Re6 Ra8+
4nn2/Bb3n1r/BN1p4/2qQ1r2/5RNn/3QbpPN/P1n5/1bq2Knk w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 d5 e5 f5 b3 d6 b2 Nd2 b1Q f6 Qb2 Rb1 Qa1 Rb4 cxd6 Rc4 d5 Rf4 exf4 Nb1 d4 Nf3 Nxf6 Ng1 Ng8 e4 Ke7 c4 Kd6 g3 Ke5 c5 h5 c6 b5 c7 f5 Be2 f3 Kf2 d6 Kf1 f4 Qc2 d3 Na3 b4 Nb1 f2 Nh3 b3 Na3 d2 Rh2 d1N Kg2 f1N Qb1 b2 Bd3 Nd2 Qc2 b1B Ng5 h3+ Kg1 h4 Qa4 Nd7 Bc2 Nf3+ Kf1 Rh7 Qc4 Ngf6 Be3 Bb7 c8N Bh6 Bf2 Ne3+ Ke2 Qc7 Bg1 Ne8 Qb3 Nf8 Nb5 Ra5 Kf2 Qc5 Rh1 h2 Bd1 h3 Nb6 Nc2+ Kf1 Nh4 Nc7 f3 Nge6 Be3 Nf4 Kd4 e5 Qb2 e6 Qc1 e7 Ke4 Bf2 Rb5 Rg1 h1N Ncd5 h2 Nh3 Kf5 Qd3+ Kg4 Rg2 Ra5 Bg1 Rb5 Rd2 Nf2 Re2 h1N Re1 Ne4 Be2 Nhf2 Nf6+ Kf5 Ng4 Ra5 Qc3 Ng5 Ba6 Nf7 Rd1 Ne4 Qd2 Nc3 Re1 Ne2 Qd5+ Kg6 Qd3+ Kh5 Bf2 Ng1 Rd1 Nc7 e8Q Rb5 Qa8 Ne8 Nd7 Qb6 Re1 Rf5 Rd1 Qc5 Nb6 Bc8 Qae4 Bb7 Qed5 Bh6 Re1 Ng2 Ng5 Qc8 Na8 Qc3 Ne5 Nh4 Ba7 Qc5 Nb6 Qd2 Nc6 Kg4 Re4+ Qf4 Ne6 Kh3 Ng5+ Kh2 Ne5 Kh1 Nh3 Qd2 Ng4 Be3 Rf4 Qc1+
r3Q3/1k3b1r/1np1B1K1/b1bb1P2/nb2B1p1/Q2bP3/RqBR4/N4rq1 w - - 0 1 illegal: No proof kernel
1QBq1Q2/nrR1b3/1P5b/b2R1p1K/5N1Q/3bbk2/r1P2r1p/nn1r1N2 w - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 h4 g5 f4 exf4 Nh3 gxh4 Qd2 d3 Qd1 d2+ Kf2 dxc1B Ng1 Qb6+ Ke1 Qd8 g4 Ke7 Kf2 Ke6 Kf3 Ke5 e4 f5 b4 h5 b5 d5 b6 a5 g5 h3 g6 h4 g7 h2 Nd2 h3 Qe2 a3 Qb5 a2 Qe8+ Ne7 g8Q d4 Qb3 d3 Qeb5+ Nd5 Q3c4 a4 Qcb4 a3 Q4a5 Ba6 Qbb4 Rh7 Qbc5 Bh6 Qc4 Rb7 Qcb4 Nc6 Be2 Na7 Rb1 a1B Bf1 a2 Qaa3 Nc3 Nb3 d2 Qaa4 d1R Bb5 Be3 Bd7 Bd3 Bc8 Bb2 Rc1 a1B Qf8 Nb1 Ne2 Ba3 Nd2 Be7 Nf1 Bc3 Rg1 h1N Rg7 h2 Kg2 f3+ Kh3 f2 Nf4 Ng3 Qb4 Bd6 Rc7 Ne2 Qc4 Ba5 Qa4 Re1 Rd1 Nc1 Rd2 Rd1 Qc4 Qe8 Kh4 Qd8+ Kh5 Be7 Qa4 Nb3 Qb4 Bf6 Qbe7+ Kd4 e5 Ke4 e6 Kf3 Qh7 Bh4 e7 Na1 e8Q Be7 Qhh8 Ba6 Rd5 Bd3 Ng3 f1R Qa4 Rf2 Nf1 Nc6 Qad4 Be1 Qc4 Ra2 Qa4 B1d2 Qa8 Bc3 Qb8 Na7 Qhf6 Be1 Qh4 Ba5
Q4Q2/q2Q2Pk/5bb1/nnbK4/1Pn1pr2/r1R1rn2/BnN2B1p/N6b w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 e4 b5 h4 bxa4 e5 gxh4 e6 fxe6 Ra2 e5 Ra3 e4 Rb3 axb3 Ke2 Kf7 f4 Kg6 g4 e5 c4 d5 g5 a5 c5 h5 f5+ Kh7 c6 h3 c7 a4 f6 b2 f7 h4 Qd3 h2 Qf3 a3 Nh3 a2 Qe3 a1B Nf2 d3+ Kd2 d4 Qe2 h3 Qg4 e3+ Ke1 d2+ Ke2 d1R Kf3 d3 Ke4 d2 Qf4 e2 Bg2 e1N Rf1 h1B Qh4+ Nh6 Ng4 h2 Qh3 Nc6 Rf4 Bc5 f8Q Qd7 Qf6 Rf8 Qd8 Ra3 Ne3 Na5 Nc2 Nf3 Rg4 Re8 Rg3 Rf1 Qg4 d1N Be3 Re6 Bf2 Nf7 Qf8 Nd6+ Kd5 Qe7 Nd2 b1N Qd4 Nb2 Nb3 Ndc4 Qd2 Ba6 c8Q Qa7 Qa8 Bb5 Qd4 Be8 Qg4 Re7 Qd7 Bg6 Bh3 e4 Be6 Re1 Bf7 Re3 Be6 Nd1 Bf7 Bf6 Nba1 Ndb2 Be6 Nbd2 Bf7 Nd4 Rf3 Nb5 Rg3 Re2 Rc3 Re3 Be6 Nf3 Bf7 Bh5 Bg8+ Kh8 g6 Rf7 Qfe8 Kg7 Qec8 Kh6 g7 Bg6 Qcb8 Rf8 Be6 Rf7 Qf8 Kh7 Qc7 Bg5 Qd7 Rf4 Bf7 Nb6+ Ke6 Nd2 Ke5 Bh4 Ba2 N6c4+ Ke6 Nf3 Kd5 Bf6
8/nK3P1p/n3r1Q1/pN1r1Rr1/3bN3/bQ2nPRb/4k1bR/r1qr2B1 w - - 0 1 illegal: Other
3b1n1k/rrP1nP1n/2qQ3p/1R3n1b/K2nB3/1R1Q2pn/3N1B1B/2q3b1 w - - 0 1 illegal: No possible last move, all moves rejected
n3r1nR/b1p5/QN2Rr2/B1r1b1nB/3kqPn1/Qb6/1P1p1R2/Kr3n2 w - - 0 1 illegal: No possible last move, all moves rejected
5k1q/3rnBr1/1pB2P2/rNB2Q1q/4Qr2/1rNnb2P/1p1qbq1K/2R5 w - - 0 1 legal: proof: e4 c5 a4 a5 d4 cxd4 c4 h5 g4 hxg4 b4 axb4 Ra2 f5 Ra3 fxe4 Rc3 dxc3 f4 e5 Kf2 d5 Kg3 g5 f5 e3 a5 b6 h3 c2 a6 e2 c5 e1Q+ Kh2 d4 f6 g3+ Kg2 g4 c6 b3 a7 e4 c7 b2 Ne2 d3 Nbc3 d2 Na4 e3 Nac3 Na6 Nb1 Rh7 Rg1 Qf2+ Kh1 g2+ Kh2 Rd7 Nbc3 Bc5 Qe1 d1Q Na4 Ne7 Qb4 Kf8 Qd2 Nb4 Rh1 g1R+ Bg2 Nd3 Ng3 e2 Qf4 e1Q Qf3 Ba6 c8Q Be3 Qe2 Rf1 Nf5 Qed2 Nc3 Qe8 Rg1 Qd8 Nd4 g3+ Kh1 Qe8 Bd5 g2+ Kh2 Qd8 Qe1 Qh5 Ndb5 Qde8 Qc5 Qh8 Bc6 Qg6 Qf5 Qgh5 Rh1 g1R+ Bg2 Rc8 a8B Rc5 Bc6 Rcd5 Nd4 Ra5 Ndb5 Qde2 Bd2 c1R Bd5 Rca1 Bf7 R1a3 Bc1 Rb3 Bd2 Bg5 Be3 Qd2 Bc5 Be3 Qb1 Bb7 Qe1 Bf3 Qb1 Be2 Qe1 Qfh4 Bc6 Rf4 Qb1 Rg7 Rc1 Nb4 Qbe4 Nd3 Qfe5 Qhe1 Q5f5 Qf2+
3rn2r/3N1P2/n1R1rb1Q/1pqr1N2/4b2b/1QR4K/2p1rb1P/3kB1Nq w - - 0 1 legal: proof: c4 d5 b4 dxc4 e4 f5 b5 fxe4 b6 axb6 Ke2 b5 Ke1 b4 g4 h5 a3 c3 Bc4 hxg4 Ba2 b3 Qf3 bxa2 Qe2 Bf5 Qd1 Bc8 Kf1 Kd7 Kg2 Ke6 d4 Kd5 f4 Kc4 a4 g5 f5 e5 a5 b5 d5 c5 a6 e3 a7 g3 d6 e2 f6 e1R d7 e4 f7 c2 Na3+ Kb3 Qd5+ c4 Qd2 e3 Qf2 e2 Qf4 c3 Qe3 g4 Nh3 Qb6 d8Q Na6 Rg1 Bb7+ Qe4 Qc5 Qc7 Be7 Nf4 Bh4 Nc4 Rd8 a8N Nf6 Qb8 Ne8 Be3 c1Q Qd5 Kc2 Qc6 Kd1 Nd6 c2 Bf2 Qb1 Qf3 Be4 Nb6 Qc1 Rb1 a1B Nf5 Baf6 Rb3 Qa1 Nh3 Qb1 Rf1 Qc1 Kg1 g2 Qbf4 Qb1 Q3e3 Qa1 Bg3 Qc1 Kf2 g1R Rc3 Qa1 Qf3 Rh1 Kg2 Qb1 Be5 g3 Ng1 Qa1 Kh3 g2 Nd7 Qc1 Qg3 Qb1 Nf3 g1B Qh6 Bf2 Bf4 Rg1 Bd2 Rg2 Ng1 Qa1 Qd3 Rg5 Nd6 Rd5 Nf5 Qa5 Qc4 Qac7 Qa2 Qf4 Qb3 Qf3+ Ng3 Qh1 Nf5 Bfg3 Rff3 Bf2 Rc4 Rf1 Rg3 e1R Rgc3 Re2 Be1 Qd6 Rc8 Qc5 Nf3 Rg1 Rc6 Rg5 Ng1 Rd6 Nd4 Rgd5 Nf5 Re6
2q5/Rn1PpQ1B/R3QrPq/R6r/n2rq2k/Kq6/1N2bp2/b1r1qB2 w - - 0 1 legal: proof: c4 a5 f4 f5 g4 d5 b4 dxc4 e4 fxe4 f5 axb4 Bb2 g5 Na3 Qd5 Nc2 Qd8 Be5 h6 Bf4 gxf4 g5 h5 Ne3 Ra7 Ng4 hxg4 Bh3 Ra4 Bf1 Ra8 a4 Kf7 h4 b5 d4 c5 Kd2 c3+ Kc1 f3 f6 Kg6 a5 Kh5 a6 e3 g6 b3 d5 b4 d6 b2+ Kc2 b3+ Kd3 b1Q+ Kc4 g3 a7 g2 f7 c2 d7 c1Q+ Qc2 f2 Ra2 e2 Rh3 e1Q Rf3 b2 Kb3 c4+ Ka4 c3 Bc4 Ba6 Rf6 Nh6 Bd3 Nf5 Qb3 c2 Nh3 g1R Bf1 Bg7 f8Q Qh6 Qff7 c1R Ka3 Be2 Ra6 Qc8 Qbe6 Qe4 Nf4+ Kg4 h5 b1Q Nd3 Kh4 Nb2 Nd6 Ra5 Na6 Ra1 Rb8 a8B Rg4 Bd5 Nc5 Ra7 Na4 Ra6 Qg5 h6 Nb7 h7 Qh6 Bc4 Rf8 h8R Rg5 Bb3 Rh5 Qg8 Rg5 Nd3 Qd5 Qb6 Nd6 Ra8 Nb2 Ra7 Qh7 Qa6 Qbc2 Ka2 Qe4 Qd5 Rf7 Rf8 Rff5 Rf6 Rb4 Qac4 Nb7 Rfa6 Rh5 Qd6 Qg4 Qcf4 Qhh8 Bg8 Qh6 Bh7 Bh8 Qf3 Qe4 Qe6 Rf8 Qff5 Bc3 Qf3 Rd4 Qff5 Qb1+ Kb3 Rf7 R1a5 Na4+ Ka3 Ba1 Qf3 Qb6 Nb2 Rf8 Qff7 Qb5 Qe8 Rf6 Q8f7 Qb3+
B1k1rN1K/3pbq2/nn1QQQ1p/1NnR4/4bnr1/5P2/r2P4/rB1n3q w - - 0 1 legal: proof: b4 h5 e4 f5 g4 fxe4 c4 Rh7 a4 Rh8 g5 a6 b5 axb5 Ra3 bxc4 Rb3 c3 Rb4 Kf7 Rb5 Ke8 h4 c2 g6 Rh7 Bb2 Nh6 Rg5 Nc6 Rg4 hxg4 h5 Ng8 h6 Rh8 h7 Nb8 Bf6 Ra5 Bg5 Ra8 Bh6 gxh6 Ke2 c1R Ke3 c5 Kf4 e5+ Kf5 b5 g7 c4 Kg6 e3 a5 e4 f3 c3 a6 b4 a7 e2 Qe1 e3 Rh3 b3 Rh4 g3 Rh3 g2 Qh4 e1N Ne2 g1R+ Qg5 b2 Rh5 c2 Nec3 e2 Rh2 Nf6 g8Q Qe7 Na2 Kd8 Qg2 Bb7 Rh5 Nd3 Rb5 e1Q Rc5 Nd5 Nac3 Na6 Nb5 Nb6 Rd5 Ndc5 Qg3 Kc8 N1c3 b1N Ne2 Nc3 Ned4 Nd1 Ne6 Ra1 Bd3 c1N Bb1 N1d3 Qf7 Qe8 Kf6 Bc6 Qd6 Rg4 Qfe7 Rhg8 h8Q Nf4 Qhg7 Qh1 Qg6 Rb8 a8B Rb7 Qeg7 Ra7 Qe4 Rh8 Qg5 Be7+ Kg7 Ra2 Nf8 Rg8+ Kh7 Qf7+ Qg7 Bb7 Qee6 Ra1 Ng6 Rd8 Nf8 Re8 Kh8 Bc6 Qgf6 Bb7 Rd3 Be4 Rd4 Nb4 Rd3 R7a2 Rd5 Nba6
1nk5/Bq2Q1Nr/4qP1p/r1b1Q1NQ/3qq3/n1n1Pn1R/1Rb2pbK/8 w - - 0 1 legal: proof: d4 a5 h4 c5 f4 cxd4 b4 axb4 g4 f5 h5 e6 Bg2 fxg4 f5 g6 f6 gxh5 Be4 h4 Bf5 exf5 Kf1 d5 Kg2 Kd7 a4 b5 c4 g3 e3 b3 c5 d3 a5 d4 a6 h3+ Kf1 d2 a7 b2 Na3 b1Q Rh2 d3 Qe2 d1B Qf2 h6 Qe1 d2 Ra2 f4 Rg2 f3 Re2 h2 Rc2 h1Q Qf2 b4 Rb2 b3 Qh2 Qe4 Qh5 Bc2 Rh2 f2 Nc4 Qb6 Rh3 Rh7 Nd6 Ne7 Ne8 Nd5 Ng7 Bb7 c6+ Kc8 c7 Nc3 Qe5 Qhf3 Qh5 Qfg4 Nf3 d1Q+ Kg2 Qdd4 Kh1 g2+ Kh2 g1N Ng5 Qge6 Bd2 Nd1 Ba5 Nc3 Bb4 Bd5 Bc5 Qb7 Bb6 Qh4 Bc5 Bg2 Bb6 Qhe4 Bc5 Kd7 Bb6 Bc5 c8Q+ Kd6 Qf8+ Kd7 Qe7+ Kc8 Ra2 Bb4 Bc5 b2 Bb6 b1N Rb2 Na3 Bc5 Nd7 Bb6 Rb8 a8Q Bc5 Qa4 Ra8 Qa5 Nb8 Qb5 Ra5 Ba7 Bb4 Qd5 Bc5 Qe5 Nf3+
1K3rrq/1PnPrR2/1n4b1/1b2NQbp/1N3qRb/k2n2p1/5n1B/N3Q3 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 g5 g4 b5 h4 bxa4 f5 gxh4 g5 e6 Bh3 exf5 Bg4 fxg4 Kf2 Kd7 Ke3 Kc6 Kf4 Kb5 Ke5 Kb4 e4 f5 d4 h5 d5 a5 g6 c5 g7 f4 b3 c3 d6 c2 Rh2 h3 Qd5 g3 Rd2 a3 Qe6 a2 Qf5 h2 Nf3 h1N Rg2 a4 Qf7 c4 Nbd2 a3 Nh4 c3 Qd7 f3 Rf2 Na6 Ng6 Nf6 g8N Bh6 N8e7 Bg5 Qh3 Bg4 d7 Bf5 Kd6 Nd5 e5 Rc8 Rf1 f2 e6 Qf8 Bb2 Bh4 Rae1 c1B Re4+ Rc4 Ba1 c2 Bd4 a1Q Be3 a2 Rf4 Qfg7 Nc6+ Ka3 e7 Qad4 e8Q a1R b4 Rf8 b5 Qh8 b6 Be4 b7 Nb6+ Ke6 Rc5 Nb4 Rg5 Nb3 Bd2 Rf7 Re1 Na1 c1N Rg7 Qc4+ Kd6 Nd3 Bc5 Re3 Rf7 Bf5 Rc1 Qg4 Rc4 Re1 Qe2 Bc1 Qd1 Re7 Ne5 Rgg8 Qe1 Bg6 Rcf4 Qf3 Qf5 Be3 Re4 Beg5 Rg4 Qf4 Bd4 f1B Bf2 Ndc5 Bg1 Nf2 Bh2 Bc4 Kc6 Ncd3 Kd6 Nac5 Kc6 Bb5+ Kc7 Ne6+ Kd6 Ng7 Kc7 Ne8+ Kb8 Nc7+
3B4/nprbKqrp/q3n3/7k/Q4nbb/BN2RR2/1qP1P1b1/Q2B2q1 w - - 0 1 illegal: Other
1b1Rn3/4NN1n/Q6q/2np1rQ1/rr2b1K1/1pp3bB/bP1PBk2/5Nb1 w - - 0 1 legal: proof: f4 a5 g4 h5 a4 hxg4 c4 e5 c5 exf4 c6 Na6 Na3 Nc5 Ra2 Nb3 Nb1 Nxc1 Ra3 bxc6 Rb3 c5 Rb5 c4 Rb4 axb4 Kf2 Ke7 e4 Ke6 h4 Ke5 h5 c5 a5 g5 a6 d5 a7 f5 h6 g3+ Kf3 g4+ Kg2 c3 h7 c2 Qe2 c4 Qf2 c3 Qf3 Qh4 Qd3 Nf6 Qc4 Nd3 Na3 c1N Qa2 Qh6 Qa1 Nb3 Qb1 Bd6 Rh3 f3+ Kh1 Kf4 e5 g2+ Kh2 f2 e6 Na5 e7 Bb8 e8B Nb7 Bh5 Ndc5 Qa2 Nd6 Bc4 f1B Bb5 Bc4 Qa1 Nde8 Bd7 Ba2 Qb1 b3 Nf3 g1B+ Kg2 g3 Nc2 Bh2 Nb4 Rf8 h8N Nh7 Nf7 Ba6 Nc6 Bd3 Qc1 Be4 Ne7 Rg8 Rh4+ Rg4 Kh3 g2 Qg1 Bg3 Nh2 Qa6 Nd8 Qh6 Nf1 Kf3 Nf7 f4 Bc8 Ke2 Be6 f3 Qe3+ Kd1 Qg5 Ke1 Bf5 f2 Bc8 Rf4 Be2 Rf5 Kg4 g1B Rh1 Rf6 Rh3 Rb6 Rh1 Rb4 Rh2 Qg6 Rh6 Qg7 Rd6 Qf8 Rd8 Qh6 Nh2 f1R Be6 Rf5 Nf1 Kf2 Bc8 Bbd6 Bd7 Rab8 a8Q Ra4 Qa6 Rbb4 Bc8 Re5 Bf5 Qf6 Kh5 Bb8 Bh3 Rf5 Kg4 Qh6
n6b/B3q3/Qr6/2kq3n/q1pr1P1P/p1q1QK1R/1p3NR1/NQ2qb1b w - - 0 1 legal: proof: b4 d5 a4 c5 c4 cxb4 g4 h5 e4 hxg4 e5 Qa5 e6 Qxa4 c5 Qa2 Bc4 dxc4 Kf1 fxe6 Ke2 e5 Ke1 e4 Ke2 Kd7 f4 Kc6 h4 g5 Qf1 e5 Nh3 b5 Qe1 a5 Qg1 e3 Qd1 e4 Ba3 g3 Nc3 b3 Bb2 b4 d4 a4 Qc2 g2 Raf1 g1Q Qb1 g4 Nd5 g3 Nf2 g2 Qd1 Bb7 Qd3 Nd7 Qd2 Rd8 Nd1 Ngf6 Nf2 Bg7 Nd1 Nh5 Qc1 Nb6 Rf3 Rh6 Nf6 Bh8 Qa1 Na8 Rhh3 Qh1 Nd5 g1Q Nf2 Qg7 Rfg3 Qe7 Qe1 Qa1 Bc3 b2 Qb1 b3 Rg2 Kb5 Bb4 Rb6 c6 a3 c7 Qe8 Qc2 b1B c8Q Qc3 Bc5 b2 Nb4 Qe7 d5 Qb3 d6 Qa4 Bd4 Bc6 Be5 Kc5 Qa6 Bd5 d7 Bb7 Qd1 Bd5 Qf1 Bd3+ Ke1 e2 Nc2 Bb7 Bb8 Bc6 Kd2 Bb7 Ke3 e1Q+ Qe2 Qc3 Ba7 Qd1 Na1 Bc6 Qc2 Bb7 Ng4 Bf1+ Kf2 Qd5 Qb1 Rc8 d8Q e3+ Kg1 e2 Nf2 e1Q Qe8 Rd8 Kh1 Qef6 Qee4 Qe7 Qe2 Qdf7 Qe3+ Rd4 Kh2 Ng7 Kg3 Nh5+ Kg4 Be4 Rgh2 Bh1 Rg2 Qg8+ Kf3 Qd5+
1brQ4/1b1qR3/3b1QKq/n1Nq4/Pkb1p1P1/p2pbnR1/5B2/1B4rQ w - - 0 1 illegal: No proof kernel
2Q2N2/b2r4/r7/b1pQ2p1/1rPK2Rq/1kBp3r/nBb2nBP/q3r1R1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 f4 Kd5 c3 Kc4 a5 e5 f5 d5 f6 e3 f7 d3+ Ke1 b3 a6 g3 a7 d4 Ra6 e4 Qg4 e2 Kd2 e1B+ Kd1 b2 Qf3 g2 Qf6 e3 Qh6 Qh4 Qf6 g5 Qf3 Kb3 c4 d2 Ke2 d1R Nh3 g1Q Ra1 Na6 Qf4 Nf6 Qg4 Bc5 f8B Ne4 Nf4 Bf5 Bg2 Nf2 Bg7 Nb4 Ne6 Na2 Nf8 Bc2 Qc8 Ba5 Nc3 b1R Na4 Qf1+ Kf3 e2 Rg1 e1R Bb2 Rh6 Be5 Ra6 Bh8 Rb8 a8Q Ba7 Bg7 b6 Qd5 Rb7 Be5 Rd7 Bh8 d3 Bhd4 Re6 Bdc3 Rh6 Ke3 Rh8 Bh1 Rh6 Rg4 Re1+ Kd4 Rhe6 Ng6 R6e3 Bg2 Rh3 Nf8 Re5 Qd6 Rb5 Qd5 Re1 Rb1 Rb4 Rc1 Qh1 Rb1 Re8 Rg1 Re1 Bf1 Qf3 Bg2 Qd1 Rh1 Qb1 Rg1 Qa1 Nc5+ bxc5+
7n/2k4b/1qPpKNn1/3RB1Pp/BB4pb/2qq1r2/1Q1b1RbQ/1b2r3 w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 f5 d5 fxe4 d6 g6 Qe2 cxd6 Qf3 d5 Qd1 d4 h4 Nc6 g4 Nb8 h5 gxh5 g5 Ra3 Qd3 Ra7 Qd1 Ra8 Na3 Ra4 Nc4 Ra6 Ne5 Ra8 Ng4 hxg4 Kd2 b5 f4 e5 a4 h5 c4 e3+ Kd3 e2 Ke4 e1B Kf5 b3 a5 d3 a6 e4 c5 e3 a7 d2 Ra6 e2 Ra3 b4 Ra5 b2 Qa4 b1B+ Qc2 d1Q Bd2 b3 Ra4 b2 Bg2 Qb6 Nf3 Kd8 Bb4 Bh4 Nd2 e1Q Ra2 Nc6 Ne4 Kc7 Nf6 Nd8 Bc6 Qc3 Ba4 Nf7 c6 Ba6 Rf1 Re8 a8Q Re1 Rf2 Bf1 Rd2 d6 Rd5 Bg7 Qe8 Qdf3 Qe2 Qfd3+ Ke6 Ne7 f5 Ng6 Qe5 Rf8 Qh2 Bc2 Qee2 b1B Qee5 Bd1 Rf2 Bf3 Qe2 Be4 Qb2 Bh3 Nh7 Bhg2 f6 Nfh8 f7 Bd4 Nf6 Be3 Qd2 Rg8 Qb2 Bd2 f8B Rg7 Be7 Rh7 Bf8 Rf7 Bg7 Rf8 Nh7 Rf3 Be5 Ne7 Nf6 Bh7 Qh3 Neg6 Qg3 Nf7 Qh2 Nfh8
1B3b2/1n1bp1q1/2pp3b/P1B4R/PQ4BR/q2nN1Q1/5K1b/krn2br1 w - - 0 1 illegal: Other
bQQN1rn1/2p1p1b1/6q1/r7/kB2pN1R/2K1bnP1/2P3q1/rr2r1RN w - - 0 1 legal: proof: b4 g5 e4 a5 f4 axb4 a4 bxa3 g3 gxf4 e5 h5 e6 h4 Qh5 h3 Bg2 hxg2 Qe2 dxe6 Qf3 e5 Qd1 e4 h4 Kd7 d4 Kc6 Kd2 Kb5 h5 f5 d5 a2 d6 f3 h6 f4 h7 f2 d7 f1R Ne2 g1B Qe1 f3 Na3+ Ka4 Rh2 b5 Rh1 b4 Qd1 f2 Qe1 b3 Rh2 b2 Nb1 Bb7 Nf4 Nc6 Rh4 Nd4 Kc3 Ra5 Bd2 Qe8 d8N Ba8 Qe3 Nf3 Qa7 Qg6 Qb8 Re1 Qc8 Nh6 Qb8 Rg8 h8Q f1Q Qc8 Be3 Qb8 Rg7 Qg8 Qg1 Qe6 Qh1 Qec8 Rf7 Kc4 Rf1 Be1 Bg7 Nc3+ Ka3 Bd2 Rf8 Nd1 Ng8 Nf2 Ka4 Bb4 Qg2 Nh1 Rg1 Rf1 b1R Rc1 a1R Rd1 Re1 Rc1 Re2 Rg1 Nf6 Kc3 Ree1 Ba3 Qf5 Bc5 Qg6 Bb4 Ng8+
q1nQRbqk/5r2/r3npQ1/3bPB2/2q1NpP1/2prr3/6Kn/2NB2Q1 w - - 0 1 legal: proof: g4 d5 f4 e5 c4 dxc4 b4 h5 a4 g5 b5 h4 b6 e4 Ba3 gxf4 Bc5 axb6 Ra3 b5 Bf2 b4 Rf3 exf3 Bg3 hxg3 d4 b5 h4 c5 e4 c3 d5 g2 Kf2 b3 e5 c2 d6 c1Q a5 b2 a6 b4 h5 b3 a7 f6 d7+ Kf7 h6 c4 h7 Kg7 Qe1 Na6 Rh2 Nc7 Qe3 Ne7 Qc5 Ne6 Qa5 Bb7 Qb6 Bd5 Qc7 Nc8 Nc3 b1Q Rh4 b2 Rh3 Qa1 Nge2 b1R Ne4 g1R Qb6 Rb3 Rh4 Qe8 d8Q Rd3 Rh1 Qcc3 Nc1 Rg3 Be2 Qd4+ Kf1 c3 Bd1 Qc4 Qg1 f2 Rh5 Rgf3 Kg2 f1N Rh2 Rfe3 Rh5 Rb8 a8B Nh2 Bc6 Rb4 Bd7 Rb6 Rh6 Qa8 Rh4 Ng5 Bf5 Ne6 Rh6 Ra6 Rh3 Rg8 h8Q+ Kf7 Rh4 Rg7 Qh6 Kg8 Qg5 Qg6 Rh6 Rf7 Rh8+ Kg7 Qh5 Bb4 Re8 Bf8 Qg5 Kh8 Qh5+ Qh7 Qg6 Qg8
1b1q4/k6b/3BP1Q1/qBb4p/1N3rrr/n1qPp1K1/2RB1Q1p/q3nR2 w - - 0 1 illegal: No possible last move, all moves rejected
1Qr2kNb/n4P1n/2Rr1N2/B3Pn1n/1K2p1N1/pq3pB1/bQ2b3/4r2q w - - 0 1 legal: proof: d4 b5 h4 c5 a4 bxa4 h5 cxd4 h6 e5 Bg5 gxh6 Be3 h5 Bc1 h4 f4 e4 b4 Qb6 Ra3 Qd8 Rf3 exf3 e4 f5 e5 Qf6 Bd3 Qd8 Be4 fxe4 Kd2 h5 g4 a5 c4 d5 f5 a3 b5 a2 b6 a1R g5 h3 g6 d3 Kc3 d2 f6 a4 c5 h2 g7 a3 b7 h4 c6 d4+ Kc4 h3 c7 d3 Qf1 d1B Be3 d2 Nc3 Nc6 b8B Ra6 Qe2 Na7 Qe1 Rd6 Nd5 Be6 c8N Be2+ Kb4 d1N Bf4 Ne3 Qd2 Nf5 Qb2 Re1 Bc7 Qd7 Bb6 Qf7 Bg3 Qb7 Nce7 Kf7 Nf4 Ba2 Nh5 Qd5 Ba5 Qb3+ Kc5 Ngh6 Ng8 Ng4 Nh6+ Ke8 f7+ Ke7 g8Q Bg7 Qa8 Nf6 Qb8 Nh7 Nf6 Rhd8 Nhg8+ Kf8 Nh6 Bh8 Nhg8 Qe3+ Kb4 Rc8 Ng4 Bd3 Ne2 Bdc4 Rf1 h1N Nc3 h2 Nd5 Be2 Ndf6 Qd3 Bf2 Nhg3 Rh1 Nh5 Bg3 Qe3 Rf1 h1Q Rf2 Bd3 Rc2 Be2 Rc6 Qb3+
Q4K2/1N1P1n2/1Q1q3p/1bp2rr1/p2Rr2N/Q1q1P1b1/nRn1B3/1nk1q3 w - - 0 1 legal: proof: f4 g5 a4 b5 h4 bxa4 c4 gxh4 b3 d5 f5 dxc4 f6 a3 Bb2 axb2 Rh2 exf6 Rh3 f5 Rh1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 Ke4 d4 Ke3 g4 a5 d5 c5 b4 f5 d6 a4 b5 h3 g5 h2 b6 c3 g6 f3 b7 c2 g7 c1Q Qc2 f4 Qf5 f2 Na3 Kd2 Qf6 b1N Qe5 f3 Qf5 Bd7 Bg2 f1R Qe4 f2 Qb4+ Qc3 Ra2+ Kc1 Nf3 Na6 b8Q Bb5 Qb6 Nh6 g8Q Nf7 Nh4 h6 Kg6 Rg1 Qb3 f1N Nc4 Nb4 Na5 Ne3 Rb2 Nec2 e3 Na2 Nb7 Rf1 Rg1 h1Q Qa3 Qb8 d7 Bd6 Bf3 Bg3 Qgd8 Re8 Be2 Qd6+ Kh7 Re7 Kg8 Re4 Rg2 Ra6 Qa8 Rf5 Rf2 Qhe1 Rf4 Re7 Rd4 Re4 Qba7 Rc6 Kg7 Rc8 Qa5 Rce8 Qb6 R8e7 Kf8 Rg4 Qc7 Rgg5 Qb6 Re4+
3nB2B/Qp3p1n/2qB1bQr/1knP3q/r5qR/bb1bR3/1P1N2pK/8 w - - 0 1 legal: proof: f4 a5 g4 h5 a4 hxg4 c4 d5 f5 dxc4 f6 exf6 Qb3 f5 Qc3 f4 Qb4 axb4 Na3 bxa3 Kf2 Kd7 Kg2 Kc6 h4 g5 d4 c3 e4 a2 h5 c2 e5 g3 e6 f3+ Kh3 f2 h6 g4+ Kg2 Nf6 a5 Qd5+ Nf3 Nh7 e7 Be6 a6 Qh5 a7 Bb3 Ba6 f1B+ Kg1 g2 Rh4 Bd3 Bd2 c1B Kh2 g3+ Kh3 g1Q Rb1 a1N Ba5 Bg5 Be1 Bf6 e8Q+ Kb6 d5 c5 Qe6+ Nc6 Qd6 c4 Bb5 c3 Nd2 c2 Ba4 g2 Bg3 Qgd1 Kh2 Qdg4 Re1 c1Q Re3 Ka5 Bf4 Nd8 Be8 Qc6 Qe6 Bc5 Bd6 Ba3 Qe4 Kb5 Qg6 Rc8 a8Q Rb8 Qa7 Ra8 Qb8 Ra4 Qa7 Bd1 Qa8 Nb3 Qb8 Nc5 Qa7 Nf8 h7 Bb3 Re2 Rg8 h8B Nh7 Re3 Rg7 Qf5 Rg6 Qe6 Rh6 Qe4 Qd1 Qg6 Qdg4
K1b1r3/PNB3p1/1q2rkB1/B3n1Rq/q2Q1P2/pN4np/n2b1Q2/bn6 w - - 0 1 illegal: No proof kernel
2nn3Q/1k2r3/3nRRbn/1Ppr2p1/1N2Pp2/b5bB/Bq5b/1b2KR1Q w - - 0 1 illegal: No possible last move, all moves rejected
R1rb2N1/1KPpb3/6pN/4Q1r1/2pbBNR1/2b2n1P/3q3n/1n1Qnb1k w - - 0 1 legal: proof: c4 h5 d4 f5 e4 fxe4 g4 hxg4 b4 c6 b5 c5 b6 axb6 Ba3 cxd4 c5 Qc7 c6 Qd8 Bc5 bxc5 Kd2 Kf7 a4 Kg6 f4 Kh5 c7 Kh4 f5 e5 h3 Kg3 a5 b5 a6 e3+ Kd3 e2 Ke4 e1B Kd5 b4 f6 b3 f7 e4 a7 b2 Na3 b1N Bg2 g6 Nc4 e3 Ra4 e2 Rh2 d3 Nf3 d2 Ra1 Nh6 Na3 Ba6 Nh4 Be7 f8Q Nc6 Qa4 d1N Qb4 Nd4 Be4 Rc8 a8N Nf2 Ng2 Bc3 Qb2 e1B Qf6 Nf3 Nf4 Bf1 Qd6 c4 Nb6 Nd3 Nb5 Bf2 Qb3 Nde1 Qd1 Bfd4 Ra8 Bdf6 Rc2 Qe8 Rc1 Kh2 Kc5 g3 Nbd5 g2 Kb6 g1B+ Kb7 Kh1 Nd4 Ng4 Qe5 Rh5 Nf5 Bgd4 Nh6 Nh2 Rc2 Bd8 Rg2 Rg5 Rg4 Bfe7 Nf6 Qf7 Nfg8 Qd5+ Ka6 Qa5+ Kb7 Qa2 Qd2 Qc2 Qd1 Qd2
7q/nQ1p1k2/1Q2rrr1/bp1rnb2/7P/1p3n2/NKR1B2P/Bn1RbR2 w - - 0 1 illegal: Other
4R3/2P3BR/1p1Pnp2/1b6/pr6/1QKnqqqq/Q2nN1RN/b2nk1r1 w - - 0 1 legal: proof: h4 e5 b4 d5 c4 g5 a4 gxh4 f4 exf4 c5 b5 e3 bxa4 Bc4 dxc4 b5 Qd3 b6 cxb6 Bb2 Qd7 Bc1 Qd8 d4 Ke7 Kd2 Kf6 g4 Kg5 c6 h5 e4 a5 c7 h3 e5 Kh4 g5 Kg3 g6 Kf2 d5 h4 d6 f3 g7 a3 e6 c3+ Kd3 a4 e7 a2 e8R c2 Re4 h2 Ne2 h3 Nd2 Nc6 Nc3 Nh6 g8Q Nb4+ Kd4 Qg5 Nf1 Nd3 Nb1 Nf5+ Kc4 Nb2+ Kc3 Ba6 Bd2 c1N Re1 Ng7 Re7 Qe3+ Kb4 Ne6 Qb3 Bg7 Qb8 Ncd3+ Ka3 Rh4 Nc3 Bb5 Qg8 Rb4 Bc1 Ke1 Ne4 f2 Nfd2+ f1N Rg1 h1Q Nc3 h2 Ne2 Qhf3 Re8 h1Q Rg2 Qhh3 Rb1 a1Q+ Qa2 Ng3 Nf1 Ne4 Nh2 Bc3 Qf8 f6 Qg8 Nd2 Qf7 Nf8 Qc4 Ne6 Qb3 Nd1 Rb2 Be5 Rc2 N1b2 Rc4 Rd8 Rh4 Rd7 Rh7 Rg7 Rf2 Rg1 Rg2 Ne4 Rhe7 Qfg3 Rh7 Qef3 Be3 Qc1 Bh6 Qce3 Bg7 Nd1 Qac2 Ba1 Ka2 N1b2 Kb1 Nc4 Qa2 Ncb2 Kc2 Nd2 Kc3 Nd1+
qk2K1Q1/6rr/2rb2p1/7n/pp2Nnp1/qPQ1RB1q/P3R2n/4N1Rb w - - 0 1 legal: proof: f4 b5 g4 h5 c4 hxg4 d4 c5 f5 cxd4 f6 exf6 c5 f5 c6 b4 Bg5 Nxc6 Be3 Nb8 Bh6 f4 Bg5 Qb6 Bd8 Qxd8 Kd2 d5 Kd3 Kd7 h4 Kc7 e4 a5 b3 f5 e5 a4 h5 g6 e6 f3 h6 f2 e7 f4 e8Q f3 h7 Bb7 Qe3 Nc6 Qe8 Kb8 Rh4 Bd6 Nc3 Ra6 Qd2 Ne5+ Kc2 d3+ Kb2 d4 Rc1 Nf6 Qe1 d2 Qg8 d1Q Bg2 f1N Ne4 d3 Rh3 f2 Qc3 d2 Nf3 Nh2 Ne1 f1Q Re3 Nh5 Bf3 Rc6 Ra1 Qde2 Kc2 Nd3 Rb1 Qef2 Re2 Ndf4 Rd1 Nd5 Kd3 Qh3 Rc1 Qff1 Kd4 Ndf4 Re3 Ba8 Rc2 d1R+ Rd2 Bf8+ Ke5 Qc8 Rg2 Rd7 Rg1 Rg7 Re2 Qf2 Re3 Qb2 Re2 Ng3 Re3 Bd6+ Kf6 Qa3 Re2 Ra7 Re3 Bb7 Kf7 Ngh5 Re2 Kc7 Re3 Qa8 Re2 Bf8 Re3 Kb8 Ke8 Bc5 Qf8 Rg8 h8R Bd6 Rh7 Rh8 Re7 Rh7 Qfh8 Ba6 Re5 Rag7 Qg8 Be2 Rd5 Bf1 Rd2 Bg2 Rde2 Bh1
Q5K1/4NnQn/1rp3P1/Bn1N3b/p3kp2/bB2p3/r3r1P1/rr1qQ2R w - - 0 1 illegal: Other
qR3rr1/2B2P1n/1b1Prb1Q/1N2pp2/1k2p3/p2rKQ2/6B1/BbNr3n w - - 0 1 legal: proof: f4 b5 a4 bxa4 b4 f5 e4 d5 c4 dxc4 g4 Bd7 g5 Bc8 g6 hxg6 Ra3 Na6 Rf3 fxe4 f5 Nb8 f6 Be6 Rf4 Bc8 Rf5 gxf5 Kf2 Kd7 d4 Kc6 h4 Kb5 d5 e5 h5 g5 f7 c5 h6 a5 h7 g4 Qf3 a3 Qg3 a2 Ke3 a1R Qh4 a4 Qh5 a3 Qh3 g3 Qh5 g2 Ne2 g1B+ Kd2 c3+ Kc2 c4 Bg5 Be6 Qh2 Nh6 Qh3 Bb6 Be7 Bg7 Bh4 Rg8 h8Q Bf6 Kc1 c2 Kd2 c1R Qe3 Ng4 Qb3 Nf2 Qf3 Nd7 Bg2 Nf8 Qh6 Nh7 d6 Rg1 Rh3 Nh1 Nc1 c3+ Ke2 c2 Nc3+ Kc4 b5 Kb4 Bf2 Ba2 Bd4 Bb1 Ke3 Re8 Rg3 Re6 Rg8 Ra4 Rh8 Qa8 Rf8 Rd1 Rb8 Rg1 Bf1 Rg8 Bg2 Bbd8 b6 Bc7 b7 Bb6 Nb3 c1R Nb5 Rcc8 Nc1 Rce8 Rd8 Ref8 b8B Ra2 Bc7 Rd2 Rb8 Rd1 Ke2 Ka5 Bb2 Rad4 Ke3 Kb4 Ba1 R4d3+
Qr2r1bk/1nPb1pR1/b3nR2/8/1B2p3/qB1pN2p/r4Pn1/2K1BQb1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 e3 dxe3 Be2 a5 Bf1 axb4 h4 h5 g4 hxg4 Nd2 Ra5 Nh3 gxh3 Nf3 Ra7 Ng1 Ra8 a4 d5 c4 g5 h5 b5 h6 e5 h7 d4 c5 b3 c6 e2 Kd2 e1N a5 g4 a6 g3 c7 g2 a7 b4 Qf3 b2 Ra2 b1B Kd1 b3 Rh2 b2 Qf6 Ba6 Ra5 Nh6 Ra3 Bf5 Qd6 b1B Qb4 Nd7 Qd2 Nc5 Qd3 Qe7 Ra5 Bd7 Nf3 g1R Qa3 Nb7 Qd3 Rgg8 Ra3 Nf5 Rg2 Ng7 Nh2 Ne6 Rg7 Ng2 Ng4 Qc5 Ra4 Bd6 Ne3 Kf8 Bd2 Qa3 Be1 Rb8 Qe2 Bf5 a8Q e4 Rb4 Bh2 Rb6 Bg1 Qb5 Re8 Bc4 d3 Bb3 Bg6 Qh5 Bf5 Qe2 Bg6 Qf1 Bf5 Rg5 Bg6 Bb4+ Kg7 Kd2 Rgf8 Rc6 Rhg8 h8B+ Kh7 Bd4 Rb8 Kd1 Rfe8 Bdc3 Rgf8 Bd2 Kh8 Be1 Bh7 Rg7 Bg8 Rc5 Red8 Rf5 Rfe8 Rf6 Bc6 Qe2 Rd6 Kd2 Bd7 Qf1 Rc6 Kd1 Rc1+ Kd2 Rc2+ Kd1 Rb2 Kc1 Ra2+
1k6/p2K4/1bR1B2r/q1nP1p2/B5nP/2RNqBq1/pQ1Qp3/q1r3qb w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 e4 h5 g4 hxg4 b5 e5 Ba3 exf4 e5 d5 Bb4 cxb4 Nc3 Nc6 Ne4 dxe4 Rc1 Nb8 Rb1 Rh4 Ra1 Rh8 Ke2 Kd7 h4 Kc7 d4 g5 c4 f5 e6 b3 e7 e3 Kd3 b2 e8B b1Q+ Qc2 a3 c5 e2 Kc4 g3 c6 a2 Qc1 f3 Rh3 g4 Bg2 f2 Qc2 f1Q Qb3 Nf6 Qe3 Nbd7 b6+ Kb8 b7 Bc5 Nf3 Qfe1 Ne5 Qda5 Qd2 Rh6 Bf3 g2 Nd3 g1Q Rg3 Qb2 Rc1 Bb6 Rh3 g3 d5 g2 Rg3 Qe3 Rc3 g1Q Rg6 Ng4 Rf6 Qba1 Rd6 Qa3 Kb5 Qeg3 Re6 Kc7 Rf6 Nc5 b8Q+ Kd8 Qe5 Be6 c7+ Kc8 Kc6 Bf7 Kd6 Qa5 Ba4 Bh5 Rg6 Kb7 c8B+ Kb8 Be6 Nh2 Be4 Bf3 Rf6 Bh1 Bf3 Ng4 Ke7+ Kb7 Qd4 Kb8 Qb4 Kc7 Qbb2 Rc8 Rg6 Kb8 Rf6 Na6 Kd7 Rc5 Bg8 Rc4 Rc6 Rc5 Be6 Rc4 Ra3 Rc1 Rac3 Nc5+
3q2R1/NRr2R2/1q1BN2Q/pp2r1bb/p1n1k1p1/5n1Q/3P1P1q/1q1b1K2 w - - 0 1 legal: proof: b4 b5 a4 bxa4 e4 d5 g4 dxe4 h4 f5 b5 g5 b6 gxh4 g5 cxb6 Bh3 b5 Bg4 fxg4 c4 Kd7 g6 Kd6 c5+ Kd5 c6 h5 g7 a5 c7 e5 Ke2 e3 Nh3 e4 Re1 Bd7 c8Q Be7 Qb7+ Nc6 Ra3 Rh7 Ra1 Nf6 g8R Ne8 Ng5 h3 Qc2 h2 Rh8 h1B Na3 h4 Nc4 h3 Qb1 h2 Qa6 Ne5 Na3 Nf3 Rg8 Nd6 Kf1 Nc4 Rg6 Be8 Nf7 Bg5 Nd6 Rc7 Rg8 Bh5 Nc8 Raa7 Qb2 Rc5 Qb3 Rac7 Nc2 Bg2+ Ke2 h1Q Nd4 Qh2 Ba3 Ke5 Ra2 Kf4 Qh6 Re5 Ne6+ Kf5 Bd6 Bf1+ Kd1 e2+ Kc2 e3 Kd3 Bg2 Ra3 Bh1 Rc1 e1Q Na7 Bg2 Rc2 Qb1 Ke2 Ke4 Qc3 Qb2 Qb3 Qd4 Rc3 Bh1 Kf1 Qb6 Rd3 Ng1 Rd5 Bf3 Qc3 Bd1 Rc5 Re7 Rc7 Nf3 Rb7 Rc7 Rb3 Rec5 Qch8 Re5 Ra3 Bg6 Qh3 Bh5 Qg7 Qf4 Qh6 e2+ Kg2 e1Q Rd3 Qee3 Kf1 Qh2 Rd5 Qb3 Rd3 Ne1 Rf3 Qb1 Rf7 Nf3
Kb4n1/P1Qpr2p/q4Q2/1br3QR/1b2B2n/1b2R1Pk/1p4rp/1q2N1B1 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Na3 bxa3 h6 gxh6 Kd2 h5 Ke1 h4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kg4 e4+ f3 c4 f5 e5 b5 a5 a2 a6 f4 g3 h3 a7 h2 c5 d3 c6 d2 c7 b4 e6 b3 e7 Ba6 c8Q Bb5 e8Q Qa5 Bb2 Qa6 Qb1 d1B Qbe4 f2 Qe3 f3 Qd2 Bb4 Qe7 Nc6 Rc1 a1B Qb8 Ne5 Qf6 Ng6 Bd3 f1Q Be4 f2 Rc5 Nh4 Qc7 Rc8 Nf3 Kh3 Ne1 Qg1 Be5 f1R Qdg5 Rf2 Bd4 Rg2 Be3 Qf1 Bd4 Bb2 Bg1 Bc1 Kd4 b2 Rf5 Bf4 Kd5 Bc3 Kc5 Bb3 Rd5 Re8 Re5 Re7 Rf5 Qa4 Kb6 Bb4 Kb7 Qa6+ Ka8 Bfd6 Qd2 Qd3 Rh5 Qb1 Qdg5 Re5 Bb6 Rc5 Rf1 Bf4 Rf3 Be5 Re3 Bd6 Qc8 Bb8 Qc7 Ne7 Qf7 Re8 Qff6 Ng8 Re2 Rce5 Bg1 R8e7 Re3 Rc5
qrQ5/p7/bNr1N1nB/bbp1KRbQ/2B5/5p1q/1P1Pp2n/2k1N1r1 w - - 0 1 illegal: No proof kernel forced: bxDB
7B/pRPQ4/r1qb1Pp1/1RRp1q1k/b2pr3/NN6/1nb5/1Qb1nK1n w - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 fxe6 Nb1 e5 Ra3 e4 Ra2 Nh6 Ra1 Ng8 h4 gxh4 g4 Qb6 g5 Nc6 g6 Na5 g7 Qd8 Bh3 Nc6 Bf5 Nb8 Bg6+ hxg6 f4 Kf7 c4 e5 b4 d5 c5 h3 b5 e3 b6 e2 b7 a3 f5 a2 c6 e4 c7 h2 Bg5 Bd7 Be7 Qc8 Kf2 e1N Bd8 e3+ Kf1 e2+ Kf2 Rh4 Be7 Ba4 Nc3 Nh6 g8R Nd7 b8Q Nb6 Qc2 Re4 Bh4 Bd6 Nf3 Nc4 Bf6 Nb2 Qb7 Rb8 Qc6 Rb6 Bh8 Ra6 Rg1 h1B Rd1 a1Q Nb5 Qc1 Qb1 Qd7 Rf1 Ng4+ Kg1 Bg2 Nd2 Nf2 Nb3 Nh1 Na3 Qc3 Qb5 Qcc6 Rc1 Qc8 Rc5 Bh3 Rg7+ Kf6 Rg8+ Kg5 f6 Qf5 Rb8 Kh5 Rb6 Nc2 Rf3 e1B Rb7 Bd2 Rf2 Bg4 Kf1 Bd1 Rf3 Ne1 Rf2 Qb6 Qd7 Bc2 Rb5 Qc5 Rf3 B2f4 Rc3 Qc6 Rcc5 Bc1+
1Q3b1R/p2pn3/rpbr2b1/P3KNn1/1B2r3/p1p2P2/q3B3/1k2NnQQ w - - 0 1 illegal: No proof kernel
2Q3n1/rKb1q2k/1n3bR1/p3pP2/qp3RP1/2r2N2/b1prp3/1N3NQB w - - 0 1 legal: proof: b4 f5 c4 g5 e4 fxe4 h4 gxh4 a4 d5 a5 dxc4 b5 Nd7 b6 Nb8 Bb2 Qd3 Bc3 axb6 a6 Qd8 Ba5 bxa5 Ke2 Kf7 Ke3 Kg6 f4 e5 d4 b5 g4 h5 a7 c5 d5 b4 d6 h3 f5+ Kh7 d7 c3 Nf3 c2 Qd2 c1B Rh2 h4 Bg2 c4 Ng1 c3 Na3 c2 Ne2 Bd6 Nb5 Qe7 d8N Nd7 Nc6 Bc7 Bh1 Nb6 Na3 Be6 Ncd4 Ba2 Ng3 Rc8 Rf2 h2 a8Q h3 Nf1 Rd8 Qa6 Ra8 Qc8 Ra7 Bg2 h1R Rf4 h2 Nb1 Rg1 Bh1 Rg3+ Nf3 Rh3 Kf2 Rg3 Qd4 e3+ Ke2 Rg2+ Kd3 Rd2+ Ke4 e2 Qg1 Kg7 Qb8 Rh3 Qd8 Kh7 Qc8 Be6 Ra3 Ba2 Rd3 Rg3 Rd6 Rh3 Bg2 h1Q Rg6 Rg3 Ne1 Rc3 Nf3 Qh5 Bh1 Rd8 Rc6 Qhe8 Rg6 Qa4 Rd6 Nc4 Kd5 Bd2 Kc5 Be1 Kd5 Bh4 Kc5 Bf6 Kd5 Qb3 Kc6 Nb6+ Qc5 Bg7 Re6 Rd2 Rg6 Ra8 Kb7 Bf6 Qd4 Qa4 Qg1 Ra7+
1r1N4/k4nB1/2pq1n2/p1pq2bN/1QQ1PpK1/qpnP1NR1/3Bb3/4r3 w - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 b4 g5 b5 gxh4 c5 d6 Qb3 dxc5 Qa4 Qd5 Qd1 Qd8 a4 Ne7 b6 Qd7 e3 Nd5 Ba6 Qd8 Ra2 Qe7 Rb2 Qd8 Rb4 axb4 a5 Ne7 Bc4 Qd4 a6 Qd8 a7 Ng8 Ba6 bxa6 Kf2 Kd7 Kf3 Kc6 g4 Kb7 g5 f5 g6 h5 g7 b3 d3 a5 Nh3 c6 Qe2 Be7 Re1 Qd6 Rh1 Nd7 Qa2 Ndf6 Rg1 Nh6 g8N Nf7 Rg5 Rb8 Nf2 h3 Nh6 h2 Qb2 h1N Qd4 h4 Nd2 h3 Qc4 h2 Rg3 Re8 Nfg4 Nf2 Qb4 Ka6 b7 Nd1 Qc4+ Kb6 a8Q Nc3 Bb2 Nh5 Nf6 h1Q+ Rg2 Qa1 Rg3 Qa3 Ba1 Ng7 Nh5 Bg5 Bb2 Re4 Ba1 Ne8 Bb2 Nf6 Qaa6+ Kc7 Qab5 Re7 Qba4 Kb6 Qab4+ Ka7 Ba1 Nd8 Nf7 Re5 Kg2 f3+ Kh3 f2 Nf3 Re6 Bb2 f4 Bc1 Bd7 Bd2 f1Q+ Rg2 Nh7 Kg4 Qh1 Rg3 Be8 Ne1 Qhd5 Nf3 Rg6 e4 Rh6 Ng7 Rh1 Nh5 Re1 N7e5 Bg6 Nf7 Rc8 Nh6 Nf7 b8B+ Ka8 Bc7 Rb8 Bd8 Ka7 Bf6 Rd8 Bg7 Rf8 Nf5 Rb8 N5d4 Nf6+ Kh3 Bh6 Ne6 Bf5+ Kh4 Bh3 Nd8 Bf1 Be3 Be2 Bd2 Bg5+ Kh3 Nh7 Kg4 Nf6+
3q1N1q/1pqN3P/QK2bp1Q/NBR5/1p1P2p1/4n3/Bk3p2/rnb1n1r1 w - - 0 1 illegal: No possible last move, all moves rejected
1n2qk2/1K1p1NRB/7N/1r1b4/2pPB1r1/1Q1prrrP/n2Q1p1p/B1b5 w - - 0 1 illegal: No possible last move
B6q/rb1np1bP/2pP2p1/k2NB2B/2np2R1/3p4/pq2Q1n1/N1QK2r1 w - - 0 1 illegal: No proof kernel
N2bN2B/1R1nqq1B/rRR3b1/nnP5/1K4r1/2bPk3/5bpq/b3B3 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 bxa4 e4 dxe4 g4 e5 f5 h5 b5 hxg4 Qf3 c5 Qf4 exf4 Bd3 c4 Bxc4 a3 f6 Qxf6 Bf1 Qd8 c4 Kd7 h4 Kd6 b6 Kc5 d3 Kd4 Kd2 a5 h5 g5 h6 f5 b7 a2 h7 e3+ Kc2 f3 Kb3 f4 c5 a4+ Ka3 f2 Rh3 f3 Rh2 e2 Rg2 e1B Bd2 g3 Nh3 g4 Ng5 Nh6 Bf4 Nf5 Rh2 g2 Bd6 g1B Ne6+ Ke3 Be7 g3 Nf4 g2 Nc3 Nd6 Rh5 Bf5 Rd1 a1B Rd2 Rg8 h8B Nd7 b8R Rg4 Bhf6 Bg6 Kb4 a3 Na4 a2 Nb6 Ra6 Na8 Nb5 Be2 f1Q Rb7 f2 Bf3 Qb8 Rh4 Qe2 Be4 f1Q Nh5 Qh2 Bh8 Qf7 Ng7 Bef2 Rh6 Qe1 Bh4 Be7 Rb6 Bd8 Bg3 Kd4 Bf5 Qee7 Ne8+ Ke3+ Be4 Bb2 Rd1 a1N Rb1 Nb3 Rb7 Na5 Bh4 Bh7 Rc6 Ba1 Rb2 Bg6 Rb3 Kd2 Rb1 Bfd4 Be1+ Ke3 Rb2 Bf2 Rb1 Bh5 Bh7 Bg6 Ka4 Na7 R1b6 Nb5 Kb4 Bdc3+
R2BKqb1/n2R4/2b5/Bn1R4/rP1p1r1p/pNk1P1p1/1Nq3n1/3n3N w - - 0 1 legal: proof: b4 e5 d4 c5 f4 cxd4 a4 exf4 b5 Bb4+ c3 b6 a5 bxa5 cxb4 a4 h4 g5 h5 Na6 Qd3 Nb8 Qh3 Bb7 Qg3 Bc8 Qh4 gxh4 g4 Qa5 g5 Bb7 g6 Bd5 g7 Bb7 Bh3 Bc8 Bf5 Qd8 Bg6 hxg6 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 h6 f5 b6 d5 h7 g5 b7 f3 Na3 g4 Ra2 g3 Be3 d3 Bh6 f4 Rd2 f2 Ra2 f1B Rh2 d2 Rc2 d1N Nh3 f3 Bd2 f2 Bc1 Be6 Rh1 Nc6 b8R Na7 Be3 Nf6 g8N Ne8 Nh6 Bg2 Rd2 f1N Nf2 Nd6 Nf5 Bg8 Nd4 Qf8 Nb3 Ndb5+ Kb6 Bf3 Rg1 Bg2 Nh1 Bf3 Bg5 Nfe3 Bd8 Ng2 Nc4+ Ke4 e3 a3 Bc7 a4 Nb2 a2 Rd8 a1Q Rd7 Qb1 Rf1 Nc8+ Kc6 a3 Rff2 Ra4 Ba5 Qa2 Rd3 Qb1 Rfd2 Qa2 Rd8 Nca7+ Kd7 Qb1 Ra8 Qc2 Bc7 Bf7 Ba5 Rg8 h8B Rg4 Bf6 Bg8 Bfd8 Rf4 Rc3 Qh6 Rc5 Qf8 Rf2 d4 Rd5 Qd6+ Ke8 Qdc5 Nc4 Kd3 Nb2+ Kc3 Rd7 Bc6 Rf1 Rg4 Rf5 Rf4 Rd5 Qf8#
1rR4n/3bBb2/1K2NbnP/n2b3B/2R1p3/n4Pqn/4kB1N/N1n2rb1 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 axb4 g5 d5 g6 dxc4 Qb3 cxb3 Bg2 hxg6 Bh3 g5 Bf1 g4 Ke2 Kf7 Ke3 Ke6 h4 Kd5 a4 b5 d4 c5 h5 g5 h6 e5 f3 b2 a5 c4 a6 b3 a7 c3 Na3 b1B Bd2 b2 Ra2 c2 Be1 c1N Be2 g3 Nc2 b4 Rh5 b3 Rh2 g2 Na1 g4 Ba5 g3 Bb6 Ne7 Ra4 Bg7 Ba5 Ba2 Nh3 g1B+ Nf2 b1N Bb4 g2 Rh4 b2 Ra6 Qc7 Bc5 Ng6 Rh3 Bd7 Bf8 Na3 Bb5 b1B Be2 Bf6 Rh4 Nc6 Bb5 Na5 Bc5 Rhb8 Rc6 Nh8 Bd3 Qd6 Rc8 Qc7 Bc2 Kc4 d5 Kc3 d6 Bf7 Bb3 Ba2 Be6 Bb3 Bg4 Bbd5 Bh5 Rb1 Bb6 Rb8 a8N Ne2 Nb3 Nf4 Na1 Rf1 Bc5 Nfg6 Ba7 Bh2 Ng4 g1N Bc5 Nh3 Bb6 B7c6 d7 Qd6 d8B Bg1+ Nf2 Qc7 Be7 Bd7 Bbc5 Qd6 Nc7 Kc4 Ne6 Kc3 Ke2 e3 Ng4 Kc4 Nh2+ Kc3 Rd4 e4 Ra4 Qg3 Rc4+ Kb2 Bb4 Kb1 Be1 Kb2 Kd1 e2+ Kd2 Kb1 Bf2 e1N Ke3 Nd3 Bb4 Nc1 Be7 Bg5+ Kd4 Bf6+ Kc5 Kb2 Ra4 Kc3 Rb4 Kd3 Rc4 Bb7 Kb6 Bd5+ Ka7 Ke2 Ka6 Nb7 Kb6 Na5+
1r1b1n2/q6n/Rp2R1p1/P1bkBb2/BP2nrr1/N1b2B2/4Nq2/1Rb4K w - - 0 1 legal: proof: e4 f5 d4 fxe4 g4 c5 g5 cxd4 g6 hxg6 Nd2 g5 Nb1 g4 b4 a5 Qf3 a4 Qb3 axb3 a4 Nf6 Ra3 Ng8 Ra2 bxa2 h4 Kf7 f4 Ke6 Kf2 a1B Kg2 d5 c4 g6 c5 g3 h5 d3 a5 b6 c6 e3 h6 d4 f5+ Kd5 c7 e5 f6 e2 f7 e1Q h7 e4 Bh6 d2 Nh3 d1N Rg1 d3 Nd2 e3 Bg7 e2 Ng5 Nf6 Ne6 Qf2+ Kh1 e1B Nc5 g2+ Kh2 Nc3 Na4 Be7 f8R Bf5 c8B Qd7 Ba6 Nce4 Rc8 Bb2 Re8 Bc1 Nc4 d2 Be2 d1R Bf3 Bc3 Na3 Rd4 Bb5 Bd8 Re6 Rf8 h8R Nh7 Be5 Qa7 Rd1 g1B+ Kh1 Nd7 Rg8 Be3 Rb1 Rb8 Rh8 Rf6 Rg8 Ndf8 Rg7 Qa8 Ra7 Bc1 Ra6 Rf7 Nb2 Qa7 Ba4 Bh3 Nd3 Rf4 Ne1 Rc4 Nec2 Bf5 Nd4 Qc2 Nc6 Bc5 Nd4 Qf2 Ne2 Rd4 Bg4 Rd3 Bh5 Rg3 Bf3 Rgg4
qn1q1N1b/1q1qp2r/rBr2pb1/1R1P1RN1/2R5/3n1b2/1P1Bk1b1/1N4K1 w - - 0 1 legal: proof: d4 b5 g4 g5 f4 gxf4 a4 bxa4 e4 d5 g5 dxe4 d5 c5 Be2 h5 Bg4 hxg4 Qd4 cxd4 Kf2 Kd7 c4 Kd6 h4 Ke5 g6 a5 h5 f6 g7 g3+ Kf1 f3 c5 a3 c6 g2+ Kf2 a4 h6 d3 c7 Kd4 h7 e3+ Kg3 a2 Kh2 f2 Nh3 g1R Nd2 f1B Nf4 e2 Ne6+ Ke3 Nb1+ d2 Nf4 e1Q Nh5 a3 Nf4 Bf5 c8N Ra6 Nd6 Bg6 Ne8 Nh6 g8R Nf7 Ng7 Bg2 Nh3 Ke2 Ne6 d1B Rg7 Qb4 Bd2 Qb7 Nhg5 Ne5 Rg8 Re1 Rf1 Bg7 Nf8 Nd3 Rf5 Rf1 Be3 Rf4 Bd2 Rc4 Kg1 Rcc6 Be3 Qbd7 Bb6 Qb7 Nd2 Qdd7 Rc1 a1Q Rc4 Qc1 Nb1 a2 Rc5 a1Q Rb5 Bh6 Rg7 Qf4 Rg8 Qfc7 Rg7 Qcd8 Rg8 Qa5 Rg7 Rg8 h8B Qa3 Rh7 Bg7 Rh4 Qa1 Nfe6 Rf8 Rc4 Rf7 Nf8 Bh6 Rbb4 Rh7 Rb5 Bg7 Nfe6 Bf8 Bg7 Qa4 Bh6 Bg7 Nf8 Bh8 Rbb4 Ke1 Rb5 Bdf3 Nf7 Ke2 Bd2 Qa8 Ng5 Qdb7 Rcc5 Qg4 Rc4 Qh3 Rff4 Qe6 Rf5 Qed7
q1br4/1N1BRN2/q3qn2/2P2P2/BKqN4/rppB4/p3n2q/Rnb3k1 w - - 0 1 illegal: No proof kernel
4B3/1R1r4/r1B1p3/bB3P1r/2rbq3/p1kr2qn/1RPn1R1p/1K1b1N1N w - - 0 1 legal: proof: e4 e5 a4 b5 h4 bxa4 d4 exd4 h5 c5 e5 c4 e6 c3 Bd2 cxd2+ Ke2 g6 e7 gxh5 Qe1 h4 Kd1 Nf6 Qe3 Ng8 Qe6 fxe6 Ke2 Kf7 Kd1 Kf6 e8B Ke5 g4 a5 b4 d5 g5 h5 b5 h3 f3 h2 g6 h4 b6 h3 b7 a3 g7 a4 Be2 a2 B2b5 a3 Ba4 Qh4 Bec6 Nd7 b8R Bb7 Rc8 Nc5 Bab5 Ra6 Re8 Nh6 g8B Nf7 Rc8 Nb3 Rd8 Rh5 Ba4 Bb4 Rd7 Qg3 Re7 Ng5 Ne2 Ba5 Rg1 h1Q Be8 h2 Rd7 Nh3 Nf4 Ba8 Ke2 d1R Bgf7 Rd3 Bc6 Nd2 Kd1 Rc3 Kc1 d3 Rf1 Kd4 Bg6 Rc4 Rb7 Qhg2 Bf5 Qe2 Rb2 Qe4 Rf2 Bb7 Nc3 Ba8 Rab1 a1B Nd1 Bb7 Ne3 Kc3 Nf1 d4 Bd5 Ba8 Bb5 Bc6 Bh7 Be8 Bdc6 Bf7 Bg8 Bg6 Bf7 Bf5 Ng2 Bg4 f4 Be2 f5 Bd1 Rb4 Nf3 R1b2 d2+ Kb1 d3 Nh4 Be2 Ng6 d1R+ Ka2 d2 Bfe8 Rc1 Ne5 d1R Ng4 Rd7 Nh6 Rcd1 Ng4 R1d3 Kb1 Ne5 Rf3 Bd1 Nf2 Rh8 Nh1 Rh5 Rf2 Nf3 Ba8 Qd5 Bb7 Qe4 B7c6 Nd2+ Ka2 Qef3 Rb1 Rb6 Ba4 Ra6 Rb7 Kd4 Bab5 B1c3 Rb2 Qe4 Ba4 Bb6 Ka1 Bca5 Bab5 Kc3 Ka2 Bd4 Ka1 Nb3+ Kb1 Nd2+
1q1N4/3qR2q/1PpkN3/1BN5/B1Knqb2/1pn1Pr1p/b1q2R2/3rqB2 w - - 0 1 legal: proof: b4 a5 h4 e5 f4 exf4 a4 g5 c4 gxh4 Ba3 d5 Qc2 dxc4 Qb3 Qd5 Qc3 Qd8 b5 b6 Bb4 axb4 a5 b3 a6 Bg4 Qb4 Bc8 Qa5 bxa5 g4 Ke7 d4 h5 Kd2 f5 Kc3 f3 d5 h3 b6 f2 a7 h2 g5 h4 g6 a4 e3 f4 g7 f3 Nh3 a3 Bg2 f1Q Ng5 f2 Bh3 a2 Ne4 Qd1 Nc5 f1Q Be6 h3 Na4 Qfe1+ Nd2 Nc6 Bf5 Nd4 Rb1 a1Q+ Kb4 c6 Rb2 c3 Nc5 c2 Rf1 c1Q Bd3 h1Q Bb5 Qab1 Ba4 Qhe4 Rf7+ Kd6 Ne6 Qcc2 Re7 Nf6 g8B Bh6 Bh7 Rb8 a8B Rf8 Bb7 Bf4 Ba6 Rb7 Bf1 Rd7 Ra2 Qc7 Bf5 Qb8 Bg4 Ba6 Bge2 Bd3 Rb2 Qh7 Ra2 Bg6 Beb5 Ne4 Rb2 Nc3 Kc4 Qe4 Ra2 Qbc2 Rb2 Ke5 d6 Rdd8 d7 Kd6 Ng5 Be5 Ra2 Rf3 Ne6 Bf4 Rb2 Rf8 d8N Rf5 Nc5 Rd5 Nce6 Qed3+ Kb4 Nde2 Ba6 Qcc1 Nb1 Ke5 Bc4 Qd4 Nd2 Bb1 Re8 Ba2 Ne4 Qcd2 N4c5 Qde4 Rc2 Qdd4 Rd2 Qdc2 Re7 Rd7 Rd1 Qdd6 Rd4 Qdc7 Bcb5 Rd6 Kc4 Qd7 Rf7 Rd5 Rg7 Kd6 Re7 Qef5 Rd1 Rd3 Rd2 Nd4 Re2 Qe4 Rf2 Rd1
2Nn2n1/pp2Kp2/1b1R4/B1R2q2/k1b1BP1p/Br6/1b1rN2P/1rq1b2R w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 c5 a4 cxb4 Qf3 h5 Qa3 bxa3 a5 Bxg4 a6 h4 Be2 Bc8 Bc4 Nxa6 Bf1 Nb8 Ke2 Kd7 Ke3 Kc6 Kf4 g5+ Ke5 g4 f4 e3 c4 g3 d4 a2 c5 g2 Bd2 e2 d5+ Kb5 c6 Rh5+ Ke4 e5 c7 Qg5 d6 Qf5+ Kd5 e4+ Kd4 e3 d7 Ka4 d8B e1R Ne2 g1B Be7 Be6 c8R Bc4 Na3 Rb1 Ba5 Bf2 Rc6 Bg7+ Rf6 Rb3 Rc1 a1Q+ Rc3 Qab1 Bg2 Qc1 Nb5 Bg1 Bd5 Nc6+ Kc5 Rd8 Nd6 Rd7 Rg6 Nd8 Nc8 Rh6 Ra6 Rhb6 Bf8 Be5 Be4 Rd2 Rc2 R6b4 Rc3 Bd4+ Kd6 Rb1 Rc6 R4b3 Rd3 Bb2 Rc5 Nh6 Ke7 Bf2 Ng3 e2 Rd6 e1B Ne2 Bfd4 Bg7 Bg1 Bgc3 Be3 Bcb4 B3f2 Ba3 Be3 Rcc6 Bb6 Rc5 Ng8+
1r3r2/5Rq1/NN1N2kN/2r3r1/rq2P1R1/BqP2K1p/4nQ1n/n3r3 w - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 h4 a5 f4 axb4 h5 exf4 h6 gxh6 a5 h5 Rh2 h4 Rh3 Qf6 Rh1 Qd8 e3 b5 Bc4 Bc5 Ba2 Bb6 axb6 Qf6 Na3 Qg5 Nb1 Qd8 b7 b3 bxc8N bxa2 Nb6 Ra5 Na8 Ra7 Ke2 d5 g4 f5 e4 Kf7 g5 h5 c3 h3 Bd2 h2 Qc2 f3+ Kf2 b4 Qd3 b3 Bf4 h4 Qc4 h3 Bc7 d3 Nd2 f4 Be5 b2 Qd4 b1Q Nf1 d2 Qc5 d1R Qc8 d4 Ng3 d3 Nf1 d2 Ne3 Qf6 Nc7 Nh6 Bd4 Nc6 Ne8 Ra4 Nd6+ Kg6 Nef5 Qg7 Be3 Nd4 Qg8 Qb4 Ne2 Re1 Rg1 h1R Nc4 d1Q Bc1 Qdb3 Nfd6 Nhf5 Nb6 Ng3 Qf8 Nf1 Rg4 Rg1 Ba3 Rg8 Rd1 a1N Nc1 Ne2 Nd3 Rg3 Nc5 Rh8 Qe7 Rc8 Na6 Rc5 Rd2 Rb1 Rc2 Rb2 Qa7 Rg1 Ke1 f2+ Kd1 f3 Qf7+ Kh7 g6+ Kh6 Na8 Nf4 Nc4 Ng3+ Kd2 f1R Ke3 f2 Rc1 Qb7 N6c7 Qg8 g7 Qd1 Nd6 Nfe2 Qf3 Qc2 Rf4 Kg6 Rf8 Rb6 Rd1 Qcb3 Na6 Qb8 Rd5 Re1 Rf4 f1R Rdf5 Qh8 g8N Qg7 Nh6 Rbb4 Qg2 Qb5 Rh4 Q5c4 Rhf4 Rb8 Nb6 Qcb4 Rh4 Rf4 Qf2 Rg2 Rf8 Rf7 Rf4 Nf1+ Kf3 Rff5 Na8 Rgg5 Nb6 Rfe5 Rg4 Ree8 Rf5 Rf8 Rf7 Nh2+
R1rq2k1/1bp1P1N1/1R1B1PKR/4Br2/6nb/1p6/nrq2qrR/2b2Q2 w - - 0 1 legal: proof: c4 a5 h4 d5 cxd5 g5 b4 axb4 a3 bxa3 d6 gxh4 Qc2 e6 Qb3 Ra5 Qd1 Ra8 e4 Qe7 d4 Qg5 d7+ Ke7 d5 Kf6 d6 Kg7 e5 f5 Nd2 Kf7 Ne4 fxe4 Bc4 Qd8 Bd5 exd5 Ke2 b5 Ke3 h5 Kf4 h3 Kf5 h4 f4 e3 g4 d4 g5 b4 Qg4 e2 Bb2 e1Q Ra2 h2 Qd1 h3 Bc1 d3 Rb2 d2 Rc2 b3 Nf3 a2 Bb2 a1B Qe2 d1Q Nd4 Qf2 Qf1 Ra5 Ne6 Na6 Ng7 Nf6 g6+ Kg8 Re2 Ra2 e6 Be7 Be5 Rb2 Kg5 Bb7 f5 Ng4+ f6 Qc2 Rd2 Nb4 Re2 Na2 Rd2 Qc8 d8B Bf8 d7 Bd6 Be7 Qd8 Re2 Bb4 B7d6 Be1 Rg1 h1R e7 Rh2 Rh1 Rg2 Rh2 Qf8 d8R Qe8 Ra8 Qd8 Rh1 h2 Ra6 Qg1 Rb6 Qf2 Rg1 h1R Rd2 R1h4 Rh1 Rh3 Rh2 Rf3 Rh6 Qd4 Kh5 Bh4 Rf2 Rg1 Rh2 Qdf2 Ne8 Rg2 g7 Kf7 g8R Rf5+ Rg5 Rf8 Ng7 Kg8 Kg6 Qd7 Ne6 Rc8 Ng7 Qd8 Rgh5 Rb1 Rg5 Bb2 Rgh5 Bc1 Rg5 Rb2 Rgh5 Bhg5 R5h4 Ne3 Ra4 Ng4 Ra8 Bh4
1k2r2B/2qr2PK/b3BB1N/PNq5/rp2B1n1/1p5q/3b1RQ1/2r2br1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 a4 b5 c3 Na6 Ra3 Nc7 c4 b3 Ra2 b4 Rc2 Nb5 Rc3 dxc3 cxb5 Bh6 Qd4 Bg7 Qd1 Bf8 Kf2 h5 Kf3 f5 g4 d5 e4 Kd7 e5 Kc7 e6 c2 g5 h3 b6+ Kb8 e7 h2 e8B h4 g6 h3 b7 d4 Be2 d3 Qd2 Bh6 Na3 Nf6 Bd1 Ng4 Nb5 Qc7 Qg2 d2 Bf7 Re8 Bb2 c1R Bc2 d1R Ne2 Rd7 Rf1 h1R Be6 h2 Bf6 Rg1 Rf2 h1Q Be4 Qh5 Ned4 Qg5 Bh8 Qe7 g7 Qec5 Nd6 Ra6 Nf7 Bg5 Nh6 Ra5 Ke2 f3+ Kd3 f4 Qg3 Rf7 Qg2 Ra6 Nb5 Rd7+ B4d5 Ra8 Ke4 Ra7 Kf5 Ra5 Rc2 f2 Kg6 f1Q Be4 f3 Kh7 f2 Rb2 Qd3 Rd2 f1B Rf2 Ra6 Re2 Qh3 Rf2 Ra1 a5 Rc6 Rf3 Bd2 Rf2 Ra3 Nd4 Ka7 b8B+ Ka8 Ba7 Ra4 Nb5 Ba6 Bb6 Qc8 Bd8 Kb8 Bf6 Qc7 B4d5 Qce3 Bf3 Rc1 Be4 Qec5
R2N4/2r1NR2/1qrP1rbk/pnq5/1P4nn/nKp1n1N1/2NB3r/2Q5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 e5 c5 exf4 c6 dxc6 Qb3 c5 Qd1 c4 d4 gxh4 b4 Qd6 e3 Qc5 d5 Qd6 Bd3 Qd8 Bc2 Bc5 Bb3 Bd4 exd4 axb3 Kd2 Kf8 Kc3 Kg7 g4 h5 d6 a5 d7 f5 d5 c5 g5 b2 d6 f3 g6 h3 Qe2 f2 Qd3 f1N Qg3 h2 Qe3 h4 Nd2 b1N+ Kc2 f4 Ra3 f3 Qe8 c3 Qe4 f2 Qf5 c4 Qe4 h3 Qc6 Nh6 Qb6 Na6 Rb3 Ra7 Ne4 Nc7 Qc5 Na3+ Kd1 c2+ Ke2 Ne3 Kd2 f1R Kc3 Rf6 Qc6 Nhf5 Rb1 Nh4 Ng5 Kh6 Bd2 c1R+ Kb2 Ba6 g7 Ncb5 Ne2 Qb6 d8N Rc7 Nd4 Bb7 Re1 h1N Ne4 h2 Ng3 Nf2 Nc2 h1Q Qc5 Be4 g8N+ Kg7 Re2 Qg1 Ne7 Kh6 Qc6 Ng4 Rf2 Re1 Rc1 Bg6 Qh1 Re2 Rcf1 c3+ Kb3 Rc6 Rh2 Rhf8 Rf4 Qf2 Qc1 Qg1 Rhf2 R8f7 Re4 Rh7 Rf5 Rh2 Ree5 Re6 Rf7 Rf6 Rg5 Bf5 Rg8 Bg6 Rgf8 Qf2 Ne6 Qf5 Ra8 Qfc5 Nd8 Rh8 Ne6 Rhc8 Nd8 R8c7
1n3rk1/p3p1N1/1b5P/B1bq4/b2pN1nQ/2R3K1/2PNr1n1/1n3NrB w - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 g4 hxg4 b4 d3 f3 exf3 Ba3 d2+ Kf2 Nh6 Nc3 Ng8 Rc1 dxc1R Ke1 Ba6 Ne4 Bb7 Nc3 Bc8 Kf2 Kf7 h4 d5 h5 g5 b6 Bh6 b5 Nf6 b7 Bd7 b6 Ba4 Nb1 Kg8 Kg3 f2 Nd2 Rh7 Bg2 f1N+ Kf2 Rf7 Bb4 Ne3 Ba5 g3+ Kf3 Bg7 h6 g4+ Kf4 Qd7 Nf1 Qb5 Be4 g2 Nf3 g1N Rh3 g3 N3d2 g2 Kg3 Nfg4 Qe1 Nf3 Qf2 g1B Qe1 Nd4 Bh1 Nb3 Qf2 Bd4 Qh2 Nc6 b8N Ng2 b7 Bb6 Nd7 Rf2 b8N Re2 Nf8 Bgc5 Ne6 d4 Nd7 Rf8 Ng7 Nb8 Nf6+ Kh8 Nfe4 Kg8 Ne3 Rg1 Nef1 Qc6 Rh5 Qd5 Qh4 Nc1 Rf5 Na2 Rf3 Nc3 Re3 Nb1 Rb3 Qd8 Rc3 Qd5
2q4n/2QN1b2/B3Rb2/1rp2K1P/NnNn2B1/pnP1b2q/3p2p1/2N2k2 w - - 0 1 legal: proof: f4 b5 a4 g5 g4 f5 d4 e5 e4 fxe4 b4 exd4 f5 a5 Qe2 h6 Qd1 bxa4 Ra2 a3 Bf4 a4 Rb2 Ra5 bxa5 Kf7 Rb3 Ke7 Rg3 gxf4 g5 Kf7 g6+ Ke8 Rg5 hxg5 Kf2 Ke7 h4 Kd6 c3 Kc5 f6 d5 g7 f3 Kg3 e3 f7 d3 h5 Kc4 a6 c5 a7 a2 a8N a1N Rh4+ d4 Qd2 f2 Bh3 f1Q Nc7 e2 Rf4 e1B+ Qf2 d2 Ne2 Kd3 Ng1 d1N Bd7 g4 Re4 a3 Kf4 g3 Ke5 Bd2 Nh3 Ne3 Qf6 Ke2 Ne8 d3 Be6 Nb3 Nc7 Na6 Qf4 Nh6 g8B Nb4 Nd5 Be7 Nf2 Qh3 f8N g2 Nd7 Kf1 Bg4 Nef5 N5b6 Be3 Na4 Nfd4 Bc4 Bb7 Qg3 Bd5 Ba6 Bf7 Qf4 Qc8 Nd2+ Ke1 Nc4 d2 Qg3 Kf1 Nd3 Bd8 Nc1 Bf6+ Kd6 Re8 Re6 Re7 Nf8 Rc7 Nd7 Rb7 Qe5 Rb5 Qh2 Bd8 Ke5 Bf6+ Ke4 Ng8 Qc7 Ne7 Rc6 Ng6 Re6 Ndc6 Kf5 Nh8 Qa5 Bf4 Qb6 Be3 Qc7 Ncd4+
QRqn2b1/RnN3R1/2rn1BN1/br4nk/2R3n1/P2q1brP/n2K4/4n3 w - - 0 1 illegal: No possible last move
N1nk1bq1/b3q1r1/4Q1bB/3n1B1r/nbP2b2/4R2P/1bN2B2/b2KB2r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 g5 fxe4 g6 c5 Qg4 c4 Qf3 hxg6 Qg4 g5 Qd1 g4 a4 d5 Ra3 d4 Rc3 Kf7 Qf3+ Ke8 Rb3 cxb3 c4 Rh3 Qg3 Rh8 Qc3 dxc3 f4 b5 d4 g5 d5 e5 h3 e3 a5 g3 d6 g2 a6 g4 f5 b2 f6 b3 a7 b4 Nd2 b1Q Rh2 b2 Bd3 g3 Be4 b3 Bd3 c2 Ne2 g1B Bf5 e4 Rg2 Bh2 Bg4 Bf5 Nf3 Ne7 Neg1 e2 Nd2 Nbc6 Bf3 Rh5 Bg4 Nb4 Rf2 g2 Rf3 Nc8 Re3 Bg6 Be6 Qe7 d7+ Kd8 f7 Nd5 Rc3 Bf4 Ngf3 g1B Nf1 Rb8 a8Q Ba7 Qc6 Rb7 Rd3 Qa1 Re3 b1N Qa6 b2 Ng5 Nbc3 Bf5 b1R Qe6 Na4 Kd2 e1B+ Ke2 Qd6 Bd2 c1B Kd1 Qg7 Bb4 Beg3 Be1 Qe7 Bf2 Qg8 Be1 Bg7 f8B Ba1 Bg7 Bd6 Bh6 Bgf4 Bf2 R1b2 Be1 Rh2 Bf2 Bcb2 Be1 Kc7 Bf2 Rh1 d8B+ Kc6 Ba5 Rc7 Rg3 e3 Bae1 e2+ Kc2 Qee8 Ne3 Rg7 Rf3 Kc7 Kd2 Bfe5 Nc2 Bf8 Re3 Bg3 Nf3 Qd7 Ne5 Qe7 Nd7 Bf4 Nb6 Kd8 Na8 Nc5 Bh4 Na4 Bef2 e1B+ Kd1 Ba5+ Be1 Bac3 Bf2 Bb4
b4kn1/N4q2/rPN1PbQ1/bbbR4/5Bq1/3n1rb1/4NnKq/3nR1N1 w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Kd2 f3 Ra2 g3 Bg2 fxg2 Ra1 cxd6 Ke1 d5 Ra3 d4 Ra2 Qh4 Ra1 Qd8 e4 f5 h4 g5 b4 a5 c4 d5 b5 a3 h5 d3 e5 d2+ Ke2 d4 Kf3 f4 b6 a4 h6 d3 e6 a2 h7 g4+ Ke4 f3 c5 f2 c6 f1B c7 a3 Kf4 Nc6 Qe1 d1N Bb2 d2 Bg7 Bd6+ Qe5 Qf6+ Ke4 Ra6 Bf8 Nf2+ Ke3 d1N+ Kd2 Qf7 Ke1 Nb4 Nc3 Nbd3+ Kd2 Bb7 c8N Ba8 Nh3 g1B Na4 g2 Qf6 g3 Nc3 Bh2 Qf5 g1Q Bh6 g2 Ne2 Bc5 Bf4 Kf8 Qg6 Bg3 Na7 Qh2 Rc1 a1B Nhg1 a2 Rb1 Qh3 Rb5 Bf6 Ra5 a1B Rb5 Nb4 Ke1 Qh2 Ra5 Bcd4 Rd5 Bc5 Nd4 Bb5 Ndc6 Nbd3+ Ke2 Ne7 Kf3 Rg8 h8N Bac3 Nh3 Ba5 Re1 Rg7 Ng1 Ng8 Nd4 Rh7 Nde2 Qb7 Nf7 Rh3 Ne5 Qf7 Qh7 Rh5 Nec6 Rf5 Nh3 g1Q Qh5 Qf1 Nhg1 Qfh3 Qg6 Qh4 Nb4 Q2h3 Nbc6 Q3g4+ Kg2 Qh6 Bd2 Rf3 Bf4 Qh2+
3bk2b/4n3/3r1bRR/1r1nn1Nq/Pr1N1Nb1/2B1r1K1/3q1n1P/2r3QN w - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 e4 g5 c4 f5 a4 d5 e5 b5 c5 d3 c6 g4 e6 f4 c7 b3 e7 b4 Qe2 d2+ Kd1 b2 Qf1 f3 Ne2 g1R Qe1 f2 Na3 f1N Qf2 b1R Ra2 d4 Nc3 g2 Ke2 d1N Qf6 b3 Nc4 g3 Kf3 b2 Ra1 d3 Qh4 d2 Na3 Nc6 Ncb5 Bg4+ Kf4 Nf2 c8N d1Q Nc2 Ne5 Ne3 Rh6 Nf5 Bg7 Nbd4 Bf6 Nb6 Ne3 Qg5 Qd5 Qg7 Qd2 Ra3 Rf1 Rc3 g1B Rc6 g2 Kg3 Qf7 Qg5 Qh5 Nd5 Rc8 Ra6 Re1 Nf4 Nd5 Qg7 Rc4 Re6 Ra1 Rd6 b1R Bb2 Rc5 Bc3 Rb4 Rc6 Rcb5 Qg6+ Kd7 e8N Rac1 Neg7 Nge7 Nge6 Bh8 Qg7 Ke8 Ng5 Rd6 Rb6 Nd1 Ra6 Be3 Rg1 Nf2 Nb3 Bb6 Nbd4 Bd8 Rc6 Rd7 Rh6 Re2 Ne3 Rd6 Nd1 Nh3 Nf2 Re4 Re1 g1B Nh1 Be3 Rg1 Nf2 Nf5 Bd4 Rg2 N5c6 Rg1 Bf6 Nd4 Ne5 Qg6+ Kd7 Rg2 Re2 Qb1 Ke8 Qa1 Rc2 Qg1 Re3+ Ngf3 Be6 Nd3 Nc7 Kf4 Rc4 Rgg6 Ncd5+ Kg3 Rcb4 Nf4 Bf5 Qe1 Rc1 Qg1 Re2 Ng5 Bg4 Ba1 Ree1 Bc3 Re3+
3nnN2/nq5q/1qrRB3/2P1bRpk/4R1r1/4K1Rb/3nrNP1/nQ4q1 w - - 0 1 illegal: No possible last move, all moves rejected
2n5/bnR1Rn1K/2R1n1bp/8/1Nrq1Rb1/rr1P2Pk/qr3B2/3B1rQ1 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Na3 bxa3 h6 gxh6 Rb1 h5 Ra1 h4 Kf2 Ke7 Kf3 Ke6 Kg4 c5 Kh5 Kf5 g3 b5 a5 c3 a6 a2 d3 c2 e3 b4 a7 c4 Rh2 h3 Rh1 f3 Rb1 a1N Be2 c3 Rh2 h6 Bb2 c1R Bf1 f2 Ne2 c2 Qd2 b3 Bf6 b2 Bg5 Nc6 Rh1 h2 Qe1 Nb3 Be7 Qd4 Qd2 Nc5 Qe1 Nb7 Bd8 Bc5 Bf6 Ncd8 Qc3 Ne7 Rg1 h1R+ Bh4 Rh2 Ra1 b1Q Ra6 Qa2 Qe1 f6 Bg2 f1R Nc3 Nf7 Nd5 Rb1 Re6 c1N Nb4 Nb3 Bf3 Rhb2 Bd1 Rg8 Rd6 Rg4 Bg5 Bd7 Rb6 Nc8 Rc6 Bb6 Rh1 N3c5 Rh4 Ne6 Qf2+ Rf4 Qg1 Rb3 Rg4 R1b2 Rc7 Qc5 Rh4 Rc4 Rg4 Qd4 e4+ Ke5 Kg6 f5 Be7 f4 Bc5 f3 Kh7 f2 Rh4 Kf6 e5+ Kf5 Rf4+ Kg5 Rf3 Kg4 Rf4+ Kh3 Rc6 Rb8 a8R Ra3 Rc7 Be8 Ra6 Ba7 Rac6 Re1 Kg6 f1B Kh7 Be2 Bb6 Bg4 Bc5 Ng7 e6 Rf1 e7 Ne6 Bb6 Nfd6 Bc5 Beh5 e8R Nf7 Ree7 Nbd8 Na6 R8b3 Nb4 Nb7 Bb6 Qd8 Be3 Qd4 Bf2 Bg6+
2q1nn2/B1B3r1/2K1R2r/b3brNP/Qp1b4/N1nkBBrP/2n1b2n/8 w - - 0 1 illegal: Other
1nKbB3/2B1q2N/R2P4/QrP2nB1/2bBp1n1/3rrb1b/3b2rn/6Nk w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 g5 fxe4 g6 c5 Qg4 c4 Qf3 hxg6 Qg4 g5 Qd1 g4 a4 d6 Ra3 d5 Rb3 Qa5 Qe2 cxb3 c4 Qb6 c5 Qd8 Qc4 dxc4 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 h4 e5+ Ke3 b5 d4 g5 f4 c3 a5 c2 a6 b2 a7 g3 f5 b3 h5 b4 h6 g2 h7 g4 f6 g3 f7 Ne7 Nf3 g1R Rh6 g2 Ba6 Nf5+ Kd2 e3+ Kd3 e2 Rh5 e1B Ng5 Bd2 Rh2 Be7 Rh1 Re8 Na3 b1R h8B b2 f8B b3 Nf7 Bf6 Rh7 Qe7 Ke2 Ke4 d5 Be6 d6 Bc4+ Kf2 Rd1 Bh6 g1N Bb5 Nf3 Bg5 Nh2 Kg2 Rg1+ Kh3 Kf3 Ba4 Kf2 Nb5 Rg2 Nc3 Kg1 Ne2+ Kh1 Bh4 Qd7 Bb5 Bd8 Ng1 Qe7 Rg7 Bb4 Be3 c1N Ng5 Bd2 Nh7 Nd3 Beg5 Rd1 Bd7 b1B Rf7 b2 Bc6 Rg8 Be8 Rg6 Be1 Re6 Bhf6 Bc2 Bf2 b1B Bd4 Ba4 Rg7 Bd7 Rg8 Nc6 Rh8 Rc8 a8Q Rb8 Qa5 Rb5 Rg8 Nb8 Rf8 Qg7 Rf7 Bc6 Ra7 Bf3 Ra8 Qe7 Ra6 Ne3 Kh4 Bba2 Kh3 Nf2+ Kh4 Nfg4 Kh5 Qb7 Kg6 Qe4+ Kf7 Nf5 Kf8 Bf1 Be7 Bac4 Kf7 Rh6+ Kf8 Rh3 Bef6 Qb7 Be7 e4 Bef6 Bb6 Bd8 Re1 Bc7 Re3 Bg6 Qa7 Ke8 Rhg3 Kd8 Rd3 Kc8 Re3 Bcd8 Qe7 Bh5 Rd3 Bh6 Re2 Bde3 B1g2 Bd4 Ree3 Bg5 Bh3 Be8 Rg2 Bc7 Nd7 Bb8 Bd8 Bc7 Nb8
2bn2Rb/1B1R2K1/3Pr3/pP1b3r/n5bB/2k1N1r1/1rn2Rqr/2nR3Q w - - 0 1 illegal: No possible last move
nBR5/2pB4/K4P1r/R2N1PBk/2r3nr/b2rB2q/n4bb1/rb3Q1n w - - 0 1 illegal: Other
2rQ2B1/kB5q/3q2q1/n3R1r1/b1b1K2R/nq1rR2P/PR1rb2p/1Nb5 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Nh3 exf6 Bc1 f5 Ng1 f4 Qd3 f3 Qd2 Ke7 Qd1 Ke8 Bf4 h6 h3 h5 Bh2 g3 Nd2 gxh2 g4 Rh7 g5 Ra7 Nc4 Rh8 Ne5 Ra8 Ng4 hxg4 Kd2 b5 Kd3 d5 e4 Kd7 c4 Kc6 e5 Kb7 c5 f5 g6 b3 g7 f4 e6 b4 c6+ Ka7 e7 g3 e8R g2 c7 b2 Qd2 b1Q+ Qc2 f2 Re7 b3 Ne2 g1Q Rd7 b2 Ng3 f3 Nh5 Qg6+ Kd2 d3 Ke3 d2 Nf4 d1R Rd6 Nh6 g8B Rd2 Ng2 d4+ Kf4 d3 Ne1 Bd7 c8R Nf5 Rg1 Rh5 Re6 Ba4 Rcc6 Ne3 Rh1 Qd6+ Re5 Nc4 Be2 f1B Qc3 f2 Qc1 Bh6+ Kf3 Na3 Rc2 Rf5+ Ke4 Nc6 Qd1 Rc8 Bf3 Be2 Rc4 f1B Nc2 Na5 Rg1 Be3 Rg4 Qh7 Rh4 Bh6 Rb4 Be3 Qe1 Qd1 Qg3 b1Q Qg5 Qb3 Qd8 Qdb1 Nd4 Q1c2 Re1 Qhg6 Bg2 Qcc7 Nf3 Qch7 Rb7+ Ka8 Rc7 Rb2 Rec1 Bd1 R1c3 Bc1 Nd2 Bg4 Nb1 d2 Rg3 d1R Rc2 Bc4 Re3 Rd3 Rf2 Ka7 Rc2 Rg5+ Kf4 Be2 Bb7 Rf5+ Ke4 Qdd7 Rc3 Rbd2 Rc2 Qdd6 Rb2 Rg5+
1nb4r/2P4N/1pNkr3/1KqN2PQ/2n3n1/Nn1qr1br/2b1b3/2R1B1R1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 a3 gxh4 e3 Nh6 Bc4 Ng8 Ba2 b3 Kf2 bxa2 Ke2 Ra7 Ke1 Ra8 Kd2 Ke7 Kd3 d5 g4 h5 c4 f5 c5 b6 e4 f3 e5 f4 e6 f2 g5 f1N c6 f3 a4 h3 a5 h2 a6 h4 a7 h3 Qa4 f2 Qa5 Kd6 e7 Ne3 Nd2 f1B+ Ne2 Nc4 Qa6 Nf6 Nb3 Ng4 Rg1 h1R Na5 h2 Rb1 a1N Rg2 Nb3 Rg1 Rh3+ Kc2 d3+ Kc3 d4+ Kb4 d2 Nf4 d1Q Nd5 d3 Bd2 Re3 Rc1 Be2 Be1 d2 Kb5 Bg7 Qb7 Be5 Qa6 Bg3 e8N+ Ke5 Nef6 Kd6 Qb7 Qc2 Nh7 d1B Qf7 Qd3 Qh5 Bc2 Nc3 Qh8 Nb1 Qg7 Na3 Qgd4 Rg2 Rf1 Rg1 h1R Nb1 Na6 Na3 Rb8 a8N Rf6 Nc7 Rfe6 Nd5 Rh3 c7 Ra8 Nf4 Nb8 Nc6 Ra5+ Kb4 Rf5 Ka4 Rf8 Nd5 Rh8 Kb5 Qc5+
2R2Nbr/2K1b3/B3qqP1/q2BQ1r1/2bN3n/N1pr3n/P4p2/r2N1kr1 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 a5 g4 axb4 c5 g5 c6 dxc6 Na3 c5 Bb2 c4 Be5 f3 Bf4 h6 Rc1 Ra7 Rc3 Ra8 Rd3 Ra4 Rd5 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 Kf2 Kd7 d4 Ke6 h4 Kd5 h5 Ke4 h6 f5 e3 b5 h7 c5 d5 b3 d6 b2 d7 b1R Nh3 g4 Qb3 g3+ Kg1 c3 Qa4+ c4 Qa6 g2 Kh2 g1R Qa7 f2 Qa4 Kf3 e4 c2 e5 c1R e6 b4 e7 c3 e8B b3 Qb4 b2 Qc5 Na6 Nb5 Nh6 Na3 Rg5 Qd6 Nb4 Qc7 Ra1 Qa5 b1Q Nb5 Nd3 Qa7 Qb3 Qb8 Qe6 Na3 Be7 Bf7 Qa5 d8N Ke3 Qc7 f3 Nc6 f4 Nd4 Nf5 Qe5+ Kd2 Be2 f1B Nf2 Ke1 Nd1 Nh4 Bg8 Nf2 Ba6+ Ne4 Bf7 f2 Bg8 f3 Bf7 Rf8 h8N Rd8 Bg8 Rd7 Nf7 Bb7 Nd8 Bd5 N8c6 Rc8 Nb8 Bb3 Bf7 Rh8 Bg8 Rd8 Nd7 Bc4 Nf8 Rd7 Ndb5 Rd3 Nd4 Rcb1 Rg1 Bb3 Rg4 Be2 Kh3 f1Q+ Kh2 Nf2 Kg3 Bc4 Kf4 Nh3+ Ke4 f2 Rf4 Qf6 Bd5 Qg1 Rf3 Kf1 Re3 Bg4 Re2 Qg3 Rb2 Bc8 Rb8 Be6 Rc8 Bg8 Bf7 Bb5 Kd5 Qe3 Be6 Bc4+ Kc6 Rc1 Kb7 Qe4+ Bd5 Qg4 Nb2 Re1 Nd1 Qge6 Kb8 Ree3 Kb7 Reg3 Kb8 Rg1 Kb7 Qa4 Kc7 Qa5+
2r1K3/5R1R/q4bp1/r5p1/1r2b2B/qnR4P/1nrkNPRQ/1q1Br1n1 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 f5 e4 fxe4 g4 a5 g5 axb4 g6 hxg6 Na3 bxa3 Qg4 g5 Qf3 Rh5 Qd1 Rh8 Kd2 Kf7 c4 Kf6 c5 Ke5 c6 b5 c7 d5 h3 e3+ Kd3 g6 a5 e2 a6 e1Q a7 a2 Qb3 b4 Qa3 b3 Qa5 b2 Qc3 b1R Ne2 Bb7 c8R Bg7 Bd2 Bf6 Nc1 Nh6 Qb2 Qf8 Be2 Na6 Qc3 Ng4 Rc7 Nh2 Qa5 Nc5+ Kc2 Ke4 Be3 e5 Bc4 Rb4 Rf7 Nf3 Rc7 Nb3 Rh2 d3+ Kb2 d4 Ka3 d2 Qb6 d1N Ne2 d3 Bf4 d2 Rf7 Ng1 Qd6 Nb2 Rg2 d1R Bg3 Rc1 Bh4 Rc2 Rc1 Qe7 Bb5 Rhc8 Ba4 Qe6 Qc7 Kd3 Rh7 e4 Qh2 e3 Rf7 R2c5 Rc3+ Kd2 Rh7 Qb1 Rf7 Na1 Bd1 Be4 Rh7 Nb3 Rf7 Rab8 a8R R8b5 Raa7 Qd6 Ng3 e2 Rae7 e1R Ne2 Rd4 Rh7 Rdd5 Ref7 Ra5+ Kb4 a1Q Rc1 R5c7+ Rc5 Ra4+ Kb5 Rdd4 Rc3 Qda3 Re3 Rc2 Rc3 Ra5+ Kb6 Rh8 Kc7 Rb4 Kd7 Rc8 Rg4 Rac5 Rg2 Qa6 Nd4 Ra5 Ne2 Rcc5 Ke8 Qa3 Nf4 Rc6 Ne2 Rc8+
2N2r2/2RN3q/B1bpN1k1/rNp1P1b1/4P3/1n4K1/q1q5/QRq1rqnb w - - 0 1 illegal: Other
3RN1BQ/pPb4b/b3r2b/1k5B/1nr5/KNqqb1rP/2pn1B2/4Bn2 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 b4 h5 g4 fxg3 Bg2 h4 Bf1 g2 Ra3 Bd6 Rd3 Bf8 Rg3 hxg3 d4 Kd7 Kd2 Kc6 Kc2 f5 Kb2 g5 e4 f4 e5 a3+ Ka2 g4 h3 f3 e6 f2 d5+ Kb5 e7 c5 e8B+ Nc6 d6 Rh6 d7 Nf6 Bh5 Ne4 Bb2 Nd2 Qb3 Bd6 Rh2 Bc7 Bh8 Re6 Rh1 Ba6 Bd3 f1B Bf5 c3 Bd3+ c4 Be2 c2 Bd4 c1B Qd3 Rc8 Nf3 g1B Qg6 g2 Nh4 g3 Qg7 Be3 Qh8 g1R Nf5 g2 Ng7 Bh6 Beg4 c3 Ne8 c2 Bf2 Bd3 Be1 Nf1 Nd2 Bh7 Nb3 B1f4 Bf7 Bfg5 Bg8 Bgf4 Bh5 Be3 Ka1 a2 Kb2 a1N Ka3 Qf6 d8B Qc3 Bdh4 Qd3 Bhf2 Qc3 Ka2 Qd3 Na5 Nb3 Ka3 Nbd2+ Nb3 Rd8 Qg7 Rd4 Qh8 Rc4 Rh2 Kb6 b5 Nb4 Qg7 Rh1 Qf6 g1Q Qh8 Qg7 Rg2 Qgd4 Rg7 Rg1 Rd7 Rg3 Rd8 Kb7 b6 Kc6 b7 Kb5 Bg6 Qe5 Bh5 Qec3
2b2BK1/1q1n1Q1P/2b1n1br/b2rR1N1/1p1N3k/1BnN4/NqP2p1q/6r1 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 Kd2 Ke7 Kd3 Kf6 Ke4 g5 Kd5 b5 e4 b3 h4 b2 h5 d3 a5 g4 a6 d2 e5+ Kg5 e6 f5 e7 f4 e8N f3 h6 f2 a7 Qb6 Nc3 b1N Nce2 Nc3+ Ke5 d5 Nd4 Nf6 Qe1 Qb7 Rh2 Nbd7+ Ke6 Bb4 Kf7 Ba5 Qe2 b4 Qd3 Nc5+ Nc7 Nfd7 Rh4 Ne6 Nge2 g1R Ne8 g2 Nf6 g3 Nf4 d1B Qh7 Bf3 Bc4 Be4 Bb3 Bg6+ Ke7 Rb8 a8N Rd8 Nc7 Rh8 Nc6 d4 N6d5 d3 Qf7 d2 Nd4 d1B Rh5+ Kg4 Rg5+ Kh4 Nd3 Bf3 Re5 Rd8 h7 Ra8 Nb2 Ra6 Bh6 Bfe4 Bf8 Rd6 Nf4 Bc6 Nfd3 Rd5 Bh6 Rg8 Bf8 Rh1 Nd1 g1Q Ke8 g2 Ke7 Qh2 Ke8 Nec5 Nce6 g1Q Ng5 Ne6 Ke7 Qg4 Ke8 Qgf4 Ke7 Qc1 Ke8 Nb1 Nc3 Qb2 Na2 Nc3 Ke7 Be4 Qg7 Rg1 Kf7 Bf5 Qf6 Rg6 Qg7 Rf6+ Kg8 Rh6 Qf7 Bg6
k4bQ1/b1p1nq2/2rq1n2/4RBn1/K1bb4/1P1pR3/B3P1B1/N1Br1r1q w - - 0 1 legal: proof: d4 b5 h4 g5 g4 gxh4 c4 bxc4 b3 e5 g5 exd4 Qd2 a5 Qf4 f5 Qg4 fxg4 Nc3 a4 Nd1 a3 Nb2 axb2 Kd2 b1N+ Kc2 d5 f4 Kd7 a4 Kc6 a5 Kb7 f5 h5 f6 c3 f7 h3 g6 h4 g7 d3+ Kd1 c2+ Ke1 g3 Bf4 c1B Kd1 h2 Ra3 g2 Bd2 h3 Nf3 g1B Nd4 Bb2 Ra2 Ne7 g8B Qd6 Bf4 d2 Kc2 d1R Bh7 Nd7 Bc1 Ra6 Bf5 Ka8 Bg2 Nc3 Ra3 Rb6 a6 Rc6 a7 Ba6 Ra5 Ne4+ Kb1 Ng5 Ka2 Bf2 Nc2 d4 Re5 Nf6 Na1 Bc4 Rf1 Bg1 Rf3 h1Q Rfe3 h2 Bge4 Qf3 Bb1 Kb7 a8B+ Kb8 Bd2 h1Q Bc1 d3 Bb7 Bd4 Ba8 Qd7 Ka3 Qd6+ Ka4 Rh2 Bb7 Rf2 Ba2 Rff1 Ba8 Rb6 Bd5 Rc6 Bde4 Qfh5 Bf3 Ka8 Bg2 Bh6 f8Q+ Qe8 Bc8 Qf7 Qg8 Bf8 Bf5 Ba7 Rf3 Bgc5 Rfe3 Bd4
1krr4/3n2qB/b1P4n/n5R1/b2PNR1B/Bbb1K1b1/1rp2Qp1/4Bn2 w - - 0 1 legal: proof: e4 d5 g4 f5 c4 fxe4 b4 a5 b5 h5 b6 hxg4 Na3 a4 Qb3 axb3 c5 cxb6 Bh3 b5 Bf1 b4 Nc4 dxc4 Ke2 Kd7 h4 Kc7 d4 e5 a4 g5 f4 b5 c6 g3 a5 g4 a6 e3 a7 e4 f5 g2 h5 b2 f6 b1B h6 c3 h7 b3 f7 g3 Ra4 b2 Rh2 b4 Rh4 b3 Ra2 Ba6+ Ke1 e2 Rg4 Nd7 Rg6 Bb4 f8B Nh6 Rg8 Qg5 Bg7 Bc2 Rf8 b1R Rf7 b2 Rf2 Rhc8 h8B Bb3 Bf6 Qg7 Nh3 g1N Rf5 g2 Kf2 e1N Bcg5 Nef3 Rc5 Ne2 Bh4 Nd2 Rg5 Nc1 Bd3 Nf1 Be7 e3+ Kf3 e2 Nf2 e1B Bh7 Ba4 Ne4 Nb3 Ra3 Rab8 a8Q c2 Bf8 Bec3 Be1 Bd6 Ra1 Bh2 Ba3 Na5 Kf2 Bg3+ Kf3 Qf7+ Bf6 Qg7 Bfe7 Rd8 Qa7+ Kc8 Qc5 Kc7 Qf5 Rbc8 Bf6 Kb8 Qf4+ Rc7 Qe3 Rcc8 Qf2 Rc1 Bfe7 b1B Bf6 Ba2 Bfe7 Nh2+ Ke3 Rb1 Bf6 Rb6 Rb1 Bd5 Rb5 Bg8 Rbf5 Rb2 Rf4 Be6 Re5 Bf7 Bh4 Bfb3 Rg5 Nf1+
1R1Q1r1r/6b1/1Rp2r2/qqr2r2/B1Pb3b/N3p3/3P1n1K/1Rnbk1BR w - - 0 1 legal: proof: f4 h5 e4 a5 b4 axb4 g4 hxg4 f5 g3 e5 g2 e6 dxe6 Nc3 exf5 Nce2 f4 Ng3 fxg3 h4 Kd7 a4 Ke6 c4 Kf5 a5 Kf4 a6 b5 h5 e5 h6 g5 h7 f5 a7 c6 Qh5 e4 Qh3 g4 Ra3 b3 Ke2 b4 Ra5 b2 Rd5 b1R Rh2 b3 Rc5 b2 Qh4 Bg7 Nf3 g1R Qe7 g2 Kf2 g3+ Ke2 Nh6 Rh1 Qa5 Qf7 Nd7 Qf6 Ng4 Rh2 Nf2 Qg6 Ne5 Qe6 Ned3 Rd5 Kg4 Qf6 f4 Nd4 f3+ Ke3 Be6 Rh3 Raf8 Be2 Rf1 a8R g1B Re5 g2 Rh4+ Kg3 Nc2 Bg4 Ra6 Bh2 Rf5 g1B Rb6 Ra1 Qd4 b1Q Na3 Qbb5 Bb2 Nc1 Qd8 Kg2 Rf6 Bg3 Rh1 Bh4 Kf4 Rb1 Bd4 Rb3 Rh3 Rd3 Be3 Rd5 Bd1 Rc5 Rf5 Nh1 Ba4 f2 Rf7 Bd1 Rf5 Re1 Bd4 Kf1 Rb3 Re3 Rb1 Rf3+ Kg4 Rf6 Rh5 R3f5+ Kh3 Ke1 Be3 f1R Bd4 Bh2 Bg1 Be5 Rh6 Bd4 Kh2 e3 Rh5 Re8 h8R Nf2 R5h7 Bh6 Rhb7 Bg7 Rh5 Rh8 Rb8 Bg3+ Kg2 Rff8 Rh1 Bh4 Kh2 R5f6 Ra8 Nfd3 Rc8 R1f5 Rcb8 Nf2
2r3Q1/4B1NP/N3n2K/2b1n1nP/q1qrr1b1/1p1p1NRR/1n4r1/k1N4n w - - 0 1 illegal: Other
R1r1B3/R1Q1b3/4rnp1/2KBn2P/2Bp2B1/Pbbr4/kn4n1/3b1rqN w - - 0 1 illegal: No proof kernel
6rr/7K/P4pN1/2rB2P1/bbRnn3/q2np1Q1/B1Nb3n/rb1N1k1N w - - 0 1 illegal: No possible last move
1rBN1qn1/3bRRnK/3b4/n1P2Q2/b2RprPN/1p3R2/4n1p1/2knr3 w - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 h5 e5 c5 e6 cxd4 Nc3 h4 Nb1 fxe6 Be3 e5 Bf2 e4 Bg3 hxg3 Qe2 e3 h4 Rh7 c4 Kf7 a4 Kf6 a5 Ke5 a6 Ke4 h5 b5 a7 e5 h6 d5 c5 f3 Na3 d3 Bh3 d4 Qa2 d2+ Kf1 Kd3 Qb2 d1B Ra2 e4 Nc2 Kd2 Ra1 f2 Kg2 f1N Ra4 d3 Qe5 e2 Nf3+ Kc1 Ncd4 e1R Nh4 d2 Ne6 Rf7 h7 Bd6 h8R Qf8 Nd8 Nc6 Rh7 Rb8 a8R Bb3 Qe6 d1N R8a7 Na5 Re7 Bd7 Qd5 Rf6 Rhf7 Rf5 Rh2 Rf6 Ra3 Ba4 Rf3 Rf5 Kg1 Rf6 Rd2 Nfe3+ Bf1 g2 Rd4 Nf5 Qe5 Ng7 Kh2 Rf5 Kg3 Rf6 Ng6 Rf4 Kh4 b3 Kg5 b2 Be2 b1N Qf5 b4 Nh4 b3 Kg6 Kb2 Ba6 Nbc3 Kh7 Kc1 Bc8 Ne2
b3r2B/1P1b2b1/Q1pp1R2/bN1KN1rk/7N/rp1n2P1/bnB2q2/2N1q3 w - - 0 1 legal: proof: c4 g5 a4 e5 b4 b5 h4 gxh4 d4 bxc4 b5 exd4 g3 a5 Ra2 f5 Rb2 f4 Rb4 axb4 Qd3 f3 Qf5 Nc6 Qh3 Nb8 Qg2 fxg2 Kd2 Kf7 f4 Kg6 e4 h5 e5 c3+ Kd3 h3 Kc4 d6 a5 h4 e6 d3 f5+ Kh5 b6 d2 a6 d1Q f6 h2 a7 c2 e7 h3 e8N Nc6 f7 Na5+ Kb5 Qf6 Ba3 c1R Nf3 g1B Ne1 Bg7 f8N Qf2 Nc3 Bd7+ Ka6 Nh6 Nb5 Nc4 Kb7 Nf7 Bb2 Nfe5 Ng6 Nd3 Nh4 b3 Bc3 Ncb2 Bg2 Ra1 Be4 Ra3 Bf5 Rd8 a8Q Rg8 Qa6 Rc8 Neg2 Qde1 Nf4+ Kg5 Nf6 Rce8 Ne2 Kh6 Nh7 Kh5 Ng5 Bd4 Nf7 Rg5 Qa4 Bg7 Nc1 Nf4 Bb4 Qfe3 Ng6 Bc3 Nf8 Q3d2 Bb1 Bgd4 Rf1 h1B+ Be4 h2 Qa6 Bf3 Ng6 h1B Nh4 Bd1 Rf3 Bc2 Bd3 Bb1 Bc2 Nfd3 Bc5 Be6 Kc6 Ba5 Bb4 Ba2 Bc3 Bh8 Bg7 Qdf2 Ne5 Bg2 Bf6 Bgh3 Rf4 Bc8 Kd5 Bhd7 Rf5 Bb7+ Nc6 Ba8 b7 Bg7 Ne5 Bf8 Bh8 Bg7 Rf6 c6+
1qb1rRr1/4b2p/1ppN4/2nB1PBk/2n3rq/5bQ1/1RBPr3/K2nB3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 e5 g5 e6 gxh4 Qg4 fxe6 Qe2 e5 Qd1 e4 b4 Bb7 a4 bxa4 b5 Bc8 b6 Bh6 b7 Kf7 Nc3 Bf8 Nd5 Ke8 Nb6 axb6 g4 Bf5 f4 Kf7 g5 Kg6 Rh3 e5 Ba3 e3 Be2 c6 Be7 c3 Ba6 e2 Bd3 c2 Nf3 c1R Rg3 a3 Rb1 a2 Rb4 a1N Nh2 h3 Ba6 e4 Rc4 Nd7 b8B Ne5 Ng4 h2 Nh6 h1B Rb4 Bf3 Rb2 Nb3 Bd3 Kh5 g6 Rc4 g7 Nc5 Bc2 Nf6 g8B Nfg4 Bd5 Ne3 Nf7 B5g4 Bf6 Be7 Bd6 Be6 f5 Rb4 Rg6 Rg8 Bg5 Rd4 Qa1 N5c4 Bg3 Qc7 Rf6 Rae8 Bf2 Qb8 Nd6 Bc8 Bfh4 Bg4 Rf8 Bf3 Kf2 e1R Qb1 Rh1 Qg1 Rh2+ Ke1 Nd1 Nb5 e3 Nd6 Rg4 Bg3 Nc3 Bf2 Ne2 Kd1 Nc3+ Kc1 Nd1 Kb1 e2 Ka1 e1Q Qg2 Qh1 Qg3 Rg2 Be1 Re2 Ba4 Qh2 Bc2 Qh4
1b3r1K/1Nr2PR1/qpnq3P/1r5k/1bnB2R1/1p1bN1p1/QN3n2/2N2r2 w - - 0 1 illegal: No possible last move, all moves rejected
6N1/2bR1pbK/2N1Q2P/5n1r/1N1PnBk1/qnprrN1p/2r3b1/q5R1 w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 e5 h4 exf4 b4 a5 g5 axb4 g6 hxg6 Bg2 g5 Bf1 g4 Bh3 gxh3 Kf2 Kd7 Kf3 Ke6 Kg4 c5 e4 b5 d4 g5 a4 c3 h5 c4 a5 b3 e5 b4 a6 c2 a7 b2 Nf3 b3 Ng1 f3 Ne2 c3 Na3 b1R Qd2 b2 Qd1 f2 Nc4 f1Q Ne3 Nf6+ Kg3 g4 Kh4 g3 Kg5 g2 Ng3 g1B Nd5 Nc6 Ne4 Qd6 Nd2 Qa3 Ne7 Bb7 Qe1 Bh2 Nf3 Re8 a8N Bg7 Bf4 c1N Rg1 Nb3 Nb6 Rd1 Nbd5 b1R Nb4 Rd3 Qe2 Rc1 Ra2 Qb2 Ra7 Qa3 Qa2 Ba8 Rd7 Bb7 Qe2 Rc2 Qe4 Qfa1 Qe1 Nb8 Nec6 Ne4+ Kg4 Ba6 Na2 Nf2+ Kg5 Nd1 Na5 Nf2 Bc1 Rdd2 Nb4 Nc6 Qe4 Ne7 Nac6 Bf1 Qe1 Rhf8 Qe2 Rd3 Qe4 Bh8 Kh6 Bg2 Qe1 Kf5 e6 Rg8 Kh7 Rg5 h6 Bc7 Bf4 Kg4 Qe4 Nf5 e7 Bg7 Qd5 Ra8 e8N Rh5 Qe4 Ra5 Qe6 Re5 Bc1 Kg3 Nf6 Re1 Bg5 Ne4 Ng8 Kg4 Bf4 Ree3
3qQq1N/1q1Nqp1p/3R4/1b1PB1Bn/N1pb2rn/8/1r2bKP1/2N2n1k w - - 0 1 legal: proof: h4 c5 b4 e5 c4 g5 a4 gxh4 f4 exf4 e3 b5 Ra2 bxa4 b5 d6 Rb2 d5 Rb4 cxb4 c5 Bd7 Be2 Bc8 Bc4 dxc4 d4 Qd5 b6 Ke7 b7 Kf6 c6 Kf5 c7 a5 Bd2 a3 Nh3 a4 Ng1 h3 Bc1 f3 e4+ Kg4 e5 Kg3 e6 h2 e7 b3 e8N b2 Qd2 f2+ Ke2 f1B+ Ke1 a2 Na3 b1Q Qd1 a1Q Bb2 Bg7 Nb5 a3 Na7 a2 Nb5 Nd7 b8B Ngf6 Qc1 Ba6 c8N+ Ne5 Nca7 Rg8 Nc6 Nh5 Qd1 Qd8 Ba7 Rb8 Nc3 Ng6 Na4 Nh4 Ne5 Bh8 Qc1 Rg4 Nf6 Rb6 Bc3 Qab2 Qd1 a1Q Nfd7 Qba3 Ng6 Qaf8 Qc1 Bf6 Nh8 Qaa3 Bd2 Qb5 Bg5 Qc6 Qd1 Qb7 Qe2 Rb2 Qe8 Bb5 Bb8+ Be5 Bc7 Qae7 Bb8 Bf4+ Be5 Bd3 Nf3 Be2 Rf1 h1N Nd2 Kh2 d5 N1g3 Nb3 Be3 Rf6 Kg1 Nc1 Kh1 Rc6 Bd4 Rd6 Bc3+ Kf2 Nf1 Bh2 Bg7 Bhf4 Bc3 Be5 Bd4+
bQ6/pb4R1/P3N2r/B3r2r/2q1RK1n/npn1B2p/3q1PR1/1k2bb1R w - - 0 1 legal: proof: c4 c5 h4 g5 d4 gxh4 e4 d5 b4 cxb4 e5 f5 Bd3 e6 Be4 fxe4 Nc3 dxc4 d5 Bg7 d6 Bf8 Nd5 exd5 Kd2 Kd7 Ke3 Kc6 g4 Kc5 a4 b5 e6 h5 e7 c3 e8R Kc4 a5 d4+ Kf4 h3 a6 d3 g5 h4 d7 d2 g6 Kd3 g7 e3 Qe1 Kc2 Qe2 b3 Rh2 b2 Rb1 b4 Kf5 b3 Re7 Rh5+ Kf4 Nh6 g8R Nf5 Nf3 Bb7 Qf1 d1B Qg1 e2 Rg4 e1R Rgg7 Be2 Rgg2 Bf1 Rgg7 Re5 Rhg2 h2 Qh1 h3 Nd2 Nc6 R2g3 Ncd4 Rh7 Ne2+ Kg4 Nh4 Qd5 h1B Ne4 Rh6 Reg7 Bb4 Be3 Qc7 d8B Qc4 Ra1 b1N Qd6 Na3 Ba5 Rh8 Rg2 Kb2 Re1 c2 Qb8 Nc3 Kf4 c1Q Re7 Rhh5 Rhg7 Qd2 Rc1 R8h6 Re6 Qcd3 Nc5 Q3c2 Re1 Qcc1 Re8 Kb1 Ne6 Ba8 R2g3 Bhb7 Rg2 Bc4 Rh1 Bf1 Rd8 Qcc2 Rd4 Qcd3 Re4 Qc4 Bb6 Ba5 Bc7 Bb4 Ba5 Ncb5 Nd4 Qdc1 R7g4 Be1 Ne6 Nc3 Rg7 Qd2
4RQ2/2b1rP1B/bnp1RKnp/2P1NN2/1r1rnk1N/N1pq4/1r2r3/3r4 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c4 gxh4 a3 bxa3 Bb2 d5 Bc3 d4 Qc1 dxc3 Qc2 Bf5 Qd1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 b5 Kg5 Ke5 g4 e3 c5 e2 f3 e1R d3 h6+ Kg6 h3 g5 b4 Ne2 a2 Nd2 b3 Ng3 c6 Nb1 h2 Na3 Ra4 Qc2 b2 Qf2 Ree4 Re1 b1R Bh3 a1N Bf5 Nb3 Rhg1 h1R d4+ Kd5 f4 e5 Re2 Nd2 Rge1 Rb2 Kf7 Be7 g6 Rab4 g7 Nd7 Bh7 Ba6 f5 Bd6 f6 Ne7 g8N Ng6 Kg7 Ke6 Ne7 Re8 Qf3 Nb6 d5+ Kd7 Qf1 Bc7 d6 Ke6 d7 Rec4 Qf2 e4 Re3 Ke5 Qf3 Qc8 d8N Qh3 Qf2 Rd4 Nf7+ Ke6 R3e2 e3 Qf1 Qf5 Qf2 Qd3 Qf4 Nh8 Ng6 Rh2 Nh4 Ng6 Qf1 Kd5 Qf5+ Re5 Qc8 Rg2 Ngf5 Ke4 Qf8 Kf4 N7d6 Rh2 f7 Re8 Ndc4 Re6 Rg2 e2 Rg3 Re5 Kf6 Ree4 Re3 Re8 Rh1 e1R Re7 Reb1 Rhe1 Rd1 R1e6 Rf2 Ne5 Re2 Rd7 Re7 Rd8 Ra4 Rb8 Rab4 Re8 Ne4+
RQq5/bRK5/3nb3/k1b3p1/2qR3r/P1P3rb/p5pR/1BbB1bNn w - - 0 1 illegal: No proof kernel
1BR5/n4bqb/1b2BpQ1/nBp5/2P1p1P1/5rRK/N1rk2n1/nB3r1b w - - 0 1 legal: proof: d4 g5 b4 a5 d5 axb4 Kd2 e6 Ke1 exd5 Kd2 Bg7 e4 Ra4 h4 gxh4 e5 Ra8 Nc3 Bf8 Ne4 dxe4 Ba3 Bg7 Kc1 Qf6 Kb1 Qxf2 Bc1 Bf8 g4 Ke7 a4 Ke6 a5 h5 c3 b5 a6 d5 a7 h3 Bb2 h2 Kc1 f6 Nf3 d4 Qe2 Kd5 Kd1 h4 e6 b3 e7 d3 e8B Kc4 Ra3 b4 Rg1 h1R Bc1 h3 Qd2 b2 Nh2 b1B Qa2+ b3 Bh5 Ne7 Bh6 Nec6 Ra6 Na5 Nf3 h2 Qb2 Bf5 Bh3 d2 Rc6+ Kd3 Rc4 Bh7 Be8 Bc5 Bf4 Bb6 Nd4 Ba2 Nc2 Nbc6 Qc1 Rc8 a8B Na7 Bd5 b2 Be6 b1N Bb5 Na3 Bg2 c6 Bb8 Qd4 Bf3 Qd7 Nb4+ Ke3 Be2 Nc2 Bf1 Qg7 Bd3 Na1 Bb1 Rhd8 Rc5 Bc4 Na2 Rd3 Bd7 Bf7 Be6 Rd5 Rc4 Rf5 Rc5 Rf3 c4 Rd8 Rd5 Rh8 Rd8 c5 Rc8 Rd8 Qc3+ Rd3 Qe5 Rc3 Qf5 Rc2 Qg6 Kd3 Nc1+ Kc3 Ke2 d1N+ Ke1 Ne3 Na2+ Kd3 Bbd7 Rh3 Bb5 Ng2+ Kf1 Kd2 Kf2 Ne3 Rg3 Ng2 Bd6 Re1 Bc7 h1B Bb8 Re3 Kg1 Rh5 Kf1 Rf3+ Kg1 Re5 Kh2 Ref5 Kh3 R5f4 Bc7 Rf1 Bb8 R4f3
3bRq1n/P2rqb2/pn5k/4np2/7p/r3Pp1r/1Q1q1K2/NNBB1NN1 w - - 0 1 legal: proof: b4 a5 h4 axb4 a4 g5 d4 gxh4 f4 e5 a5 exf4 a6 c5 a7 cxd4 Ra6 bxa6 g4 h5 c4 f5 e3 Kf7 c5 Kg6 c6 d5 c7 f3 g5 b3 Ne2 h3 Qc2 b2 Nec3 d3 Qf2 d2+ Kd1 d4 Qg2 h2 Qg4 Qe7 Qf4 Be6 c8N Nd7 Na4 Bf7 Na3 b1N Nc5 Nh6 Qb8 Ne5 Qb2 Rb8 Be2 Rb3 Nb6 h4 Nd5 Rh7 Rg1 h1R Nc3 Rh3 Rg4 Kh5 g6 Bg7 Rg3 Bf6 g7 Qf8 g8N Bd8 Rg6 Qe7 Re6 Kg5 Nc2 Na3 Nd3 Nac4 Nf2 Nb6 Nf6 Ra3 Na1 Qf8 Re8 Qe7 N6e4+ Kh5 Kc2 d1Q+ Kb1 d3 Nd2 Qf8 Nf1 Qd2 Bd1 Rg7 Ne2 Qdb4 Ng1 d2 Kc2 Qbe7 Ne4 Rh7 Nc3 Kg5 Qb3 Kg6 Nb1 Kg7 Be2 d1Q+ Kc3 Qe1+ Kc2 Q1b4 Kd1 Qbd6+ Ke1 Qd2+ Kf2 Be6 Nc3 Qed7 Na2 Nhf7 Qb1 Kh6 Qb2 Nh8 Nc3 Q7d6 Nb1 Rd7 Qd4 Qde7 Qb2 Qdb4 Bd1 Bf7 Qa2 Qa5 Qb2 Qd2+
n1N2n2/r1pNPp2/b3PqB1/b1K3n1/p4b1k/bN4p1/4RR2/Qr1r3N w - - 0 1 illegal: Other
5b1B/1pp2NN1/Pr6/Kb1n2Nn/N1pn2rq/1RRpq3/3Pr3/k3n2Q w - - 0 1 legal: proof: f4 h5 c4 e5 b4 exf4 g4 hxg4 b5 g3 c5 f3 b6 axb6 Nh3 bxc5 Bg2 fxg2 Ng1 c4 e4 Ke7 a4 Kd6 h4 Kc5 a5 Kb4 h5 g5 e5 f5 h6 d5 h7 g4 e6 d4 e7 f4 e8N d3 a6 f3 Rh2 Nc6 Rh3 Nd4 Na3 Ne7 Rh1 Nd5 Nd6 Bd7 Ne8 Qh4 Nb1 Bb5 Nh3 g1N Ra3 f2+ Kf1 Ngf3 Ng7 Re8 Ng5 Re2 Nc3 Ne1 Na4 Rg8 Rc3 Rh8 Rc2 Kb3 Rc3+ Ka2 Rg1 Rg8 h8N Ka1 Nhf7 Rh8 Rh1 Rh6 Rb3 Rb6 Rc3 Nec2 Kg2 f1N+ Kg1 g2 Bb2+ Ka2 Ba1 Ng3 Qf1 Re5 Kf2 g1R Qg2 Ne1 Qe4 Nf6 Ke3 Ngh5 Bb2 Rg2 Rg1 g3 Rf1 Nef3 Rb1 Ne1 Ba1 Rg1 Rbb3 g2 Bb2 Rf5 Qf3 Rf4 Qh3 Rg4 Qh1 Rf1 Ba1 Rf2 Bb2 g1Q Ba1 Nf4 Bb2 N6h5 Ke4 Nfg2+ Kd5 Re2 Ba1 Qe3 Bb2 Rd6+ Kc5 Ngf4 Kb4 Rb6+ Ka5 Nd5 Ne8 Rf6 Rc2 Ne6 Rc1 Rg6 Bh8 Nd4 Rcc3 Rb6 Ng7 Ka1
1R1qBb1n/rp3b1p/3npR2/RP4Q1/1rPR1r2/q1p5/3p1B1k/4bK1N w - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 fxe4 h4 g5 b5 gxh4 Qd2 a5 Qb4 axb4 Nc3 bxc3 f4 Kf7 a4 Ke6 g4 d5 f5+ Ke5 g5 e3 f6 Kf4 g6 Kg3 g7 h3 f7 d3 a5 e2 a6 h2 a7 d4 Ra5 Nf6 Nf3 Be6 Ba3 Nbd7 Ng1 Ne8 Nh3 Nd6 Bb2 Ne5 g8Q+ Ng6 Bg2 Bd5 Rf1 h1R Bc1 Kh2 Be3 d2+ Kf2 d3 Rd1 Be6 Bc6 e1B+ Kf3 Rg1 Be8 Rg4 Bf2 Rf4+ Ke3 Bd5 Qg7 Rg8 Qe5 Nh8 Qh5 Rg1 Qg5 Bh6 f8R Bf7 Qd5 e6 Qg5 Bh5 Rf6 Bf8 Qh6 Bf7 Qg5 Rb8 a8R Rf1 Rda1 d1Q R1a2 Qb3 Rd2 Rc8 Rb8 Rc6 Ng1 Qb2 Ne2 Ra6 Ng3 Ra7 Nh1 Qb4 Re2 d2 Kd3 Qb6 Re4 Qd8 Ke2 Qa3 Rd4 Rg1 Be3 Bh4 Bf2 Rb1 Rh6 Rb3 Kf1 Rb4 Rf6 Re4 Be3 Be1 Bf2 Rf4
3n2rr/pb1p3N/N4Qp1/1qP2r2/n4R1p/b2N2kB/2K1Pnp1/4r1NR w - - 0 1 legal: proof: g4 b5 d4 f5 Kd2 fxg4 a4 bxa4 h4 c5 d5 c4 d6 c3+ Ke3 Qc7 Bd2 cxd2 h5 exd6 h6 d5 Kd4 Qh2 Kd3 d4 Nf3 Nxh6 Ng1 Ng8 b4 Kf7 c4 Ke6 f4 Kf5 b5 h5 b6 h4 b7 g3 Nc3 Kg4 f5 g6 f6 a3 f7 a2 Bg2 Nh6 Qb1 d1N Qc1 Nb2+ Kd2 d3 Qc2 Na4 Ne4 Nc6 b8N Nd8 Rd1 a1R Nf3 Bb7 Ng1 Ba3 Rf1 Re1 Nf2+ Kf4 f8N Ng4 Bh3 g2 c5 Kg3 Na6 Rg8 Nd1 Nf2 Qb2 Rb8 Kc1 d2+ Kc2 Rc8 Qa1 Ra8 Nb2 d1R Nh7 Rd5 Nd3 Rc8 Be6 Rf5 Qb2 Qh3 Qf6 Qg4 Qh8 Qb4 Qf6 Nh3 Rf4 Nf2 Bd5 Qb5 Bf3 Nc6 Bg4 Rh8 Bh3 Rcg8 Qe7 Nd8 Qf7 Ne6 Qf6 Nd8
1n3rNR/2r1pb2/K2PkB1b/7B/n1N1qq2/2n1P3/1n1R4/Rb1rRq2 w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 f5 b4 fxg4 h4 gxh3 b6 a5 b5 a4 b7 Bxb7 Qb3 a3 Qd3 Bc8 Qd5 Ra5 Qa8 Rxa8 d4 Kd7 Kd2 g5 Kc3 c5 f4 h5 b6 h4 d5 h2 e3 h3 d6 a2 b7 g4 f5 g3 f6 g2 f7 Ra7 Nd2 Bh6 f8R Nf6 Nb1 Ke6 Bd2 Ne4+ Kb2 c3+ Kb3 c2 Kc4 c1Q+ Kb5 c4 Rf3 c3 Be1 c2 Bh4 Qf8 Be2 Nc3+ Kb6 Qf1 Bg5 c1N Bf4 Nd3 Bd1 Na4+ Kb5 Ndb2+ Ne2 g1N Be5 Qf4 Na3 Rf8 Nc4 Bd7+ Kb4 Be8 Bf6 Bg6 Kb5 Bb1 Nc3 Ne2 Rg1 h1Q Ne4 h2 Rf2 Qhf3 Rfg2 h1B Rf2 Nd7 b8R Rc7 Ka6 Nec3 Rd2 Q3g2 Bh5 Qgg4 Ng3 Bd5 Nf5 Qe4 Rh1 Qgf4 Rg1 Bd3 Re1 a1R Rh1 Rd1 Rd8 Bg5 Nh6 Bb1 Ng8 Bh6 Be8 Bg7 Rh8 Bh6 Ra8 Kf5 Bh5 Bf7 Rb8 Ke6 Rb3 Qef3 Ra3 Q3e4 Ra1 Nb8+
q6b/7P/pp2rB2/1q1B1nR1/1q1pK2N/1nRr2Rb/R5Pq/nN3k2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 e5 f4 exf4 b5 Ne7 b6 axb6 Ra3 Ng8 Ra2 Na6 Ra1 Nb8 a5 g5 a6 bxa6 Ra3 h5 Rh3 h4 Qd3 g4 Qf3 gxf3 Rxh4 Qc7 Rh7 Qd8 Kd2 Ke7 Kd3 Kd6 h4 Kc5 c4 d5 e4 f5 e5 f2 h5 f3 e6 f4 e7 Nd7 e8R Nh6 Re4 Bg7 Be3 Nf5 h6 Re8 Rh4 Bh8 Rh1 Re6 Be2 f1Q Nc3 f2 Rh3 f3 Rh2 Qe1 Nh3 f1N Ng5 f2 Bg4 Nd2 Re7 Nb3 h7 Na1 Nb1 Qb4 Rh3 f1Q+ Be2 Qf4 Bf3 Qh2 Rg4 Qb5 Bc1 Kb4 Rhg3 Nc5+ Kd2 d3 Bb2 Ra7 Bf6 Rd7 Be4 Qe8 Nf3 Qd8 Rg5 Ncb3+ Ke1 d2+ Kf2 d1Q c5 Kc4 c6 Qc1 c7 Qc3 Nh4 Qcb4 Kf3 Rdd6 Kf4 Qf8 Bf3 Kd3+ Be4+ Ke2 Re8 d4 Bd5 Re3 Re6 Bd7 c8R Kf1 Rc3 Rd3 Re2 Re6 Ra2 Qa8 Be5 Be8 Ke4 Bh5 Na3 Bg4 Nb1 Rg6 Bf6 Bh3 Be7 Rd6 Bf6 Re6+
N6R/Bn1r2br/3BppK1/B1p4P/3rNnn1/5p1b/3PkBR1/5q1q w - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 hxg4 c3 f5 c4 dxc4 f4 Nf6 Qf3 Ng8 Qc3 Kd7 Qf6 Qe8 Be2 Qd8 Bf3 fxe4 f5 exf3 Qg6 Bb7 f6 Ba6 f7 Bc8 Qf6 gxf6 Kf2 Ke6 Ke3 Ke5 h4 c5 b4 a5 h5 c3 b6 a4 b7 a3 b5 a2 b6 g3 Rh3 c2 Rh2 g2 Nh3 g1Q+ Nf2 Ra4 Na3 Bh3 Rg2 Qh1 Ne4 Rh7 Nb5 Nc6 Bb2+ Rd4 Bc3 c1N Nc7 Ne2 b8B Bg7 f8B Nh6 b7 Na5 Ba7 Nf4 b8B Nb7 Na8+ Kd5 Bc7 Kc4 B7a5 Qc8 Rb1 a1R Rb6 Rd7 Bd4 Ra4 Rc6 Qb8 Rc8 Qf1 Ng3 Rb4 Ke4 Ng4 Kf5 Kd3 Bf2 Rbd4 Ne4 Ke2 Re8 Qd6 Rb8 Qa6 Rc8 Qh1 Rb8 Nd5 Kg6 e6 Bd6 Qd3 Re8 Qdb1 Rb8 Qbf1 Rh8 Nf4+
3rn3/nnb1R3/kBPr2p1/p3N1Bp/1B3N1P/q7/2Kr1pr1/BnR5 w - - 0 1 legal: proof: b4 c5 a4 cxb4 e4 b5 f4 bxa4 g4 f5 Qf3 fxe4 f5 d5 f6 Bf5 Bd3 exf3 Be4 dxe4 gxf5 Qd5 Ba3 Qd4 Bc1 Qd8 Kd1 Kd7 c4 Kc6 d4 Kb7 h4 a5 f7 e5 f6 h5 c5 g6 d5 b3 d6 e3 d7 e2+ Kd2 e1R Nc3 a3 Nd1 b2 Rh2 b1N+ Kd3 a2 Rg2 f2 Bd2 e4+ Kc2 e3 Rg5 e2 Kb2 Bd6 f8B Bc7 f7 Nc6 Re5 Ka6 Nf3 Na7 c6 Rg1 Bfb4 e1N f8B Qe7 d8B Nd3+ Kb3 Nf6 Nc3 Nc5+ Kc2 Ne8 Bg7 Rg2 Ne2 Nb7 Nf4 Qf8 Bg5 Rd8 Be3 Rd6 Bb6 Qe7 Re2 Qe3 Bb2 Qa3 Re6 Rf8 Ne5 Rd2+ Kc1 Rf6 Re7 Rd8 Kc2 Rfd6 Nc4 Nd2 Rd1 a1R Ne5 Rb1 Rf1 Rd1 Ba1 Nb1 Re1 R1d5 Rc1 Rd2+
K1B2N2/6nr/2p4b/1q1BNP2/q1n2R1q/r1kb3r/B2rRqPn/3q2B1 w - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 axb4 c5 e5 c6 exd4 e5 dxc6 Qc2 c5 Qd3 c4 Qe4 fxe4 Kd2 Kf7 f4 Ke6 a4 Kd5 e6 b5 a5 h5 e7 d3 Ke3 b3 e8B b2 f5 d2 a6 d1R a7 h3 Bd2 h2 Be2 b4 Bd3 h4 Bb5 h3 Ra6 b3 Rg6 c3 Rg5 c2 Bf1 c1Q Bbe2 Qd7 Rg3 Rh7 Na3 b1Q Kf4 Kd4 Rg4 e3 Bf3 e2 Rg7 e1N Rg3 b2 Bc4 Qa2 Rg7 b1Q Bb5 Nf6 Be3+ Kc3 Ke5 Ne8 Nc2 Rd2 Rg4 Qd1 Bd5 Ng7 Bbc4 Qbb5 Nd4 Ba6 Ne6 Nf3+ Ke4 Qda4 Rf4 Nc6 Bf2 Qd1 Bb6 Qab2 Ba2 Na5 Bb7 Qe8 Bc8 Qba4+ Ke3 Bc4 Ke4 Bd3+ Kd5 Qeb5+ Bc5 Ne5 Nf3 Ng4 Rg1 h1Q Re1 h2 Re2 Qhe1 Ne5 h1R Rf1 Nh2 Rf4 Be7 Nf8 Qh4 Ne6 Bg5 Nf8 Qb8 Bb6 Bh6 Bg1 Q8b6 Ng4 Qbf2 Ne5 Rb8 a8B Rb3 Bab7 Ra3 Bc6 Ng4 B6b7 Rh3 Ba8 Nh2 Bab7 Qf3+ Kc5 Qbb3 Bd5 c6 Kd6 Qff2 Kc7 Qbc4 Kb8 Qcb5+ Ka8 Nc4+
1b1rb3/RnNP2N1/5nrK/r1N3r1/4BR2/q2q1b1P/pb2B3/1N1nk1b1 w - - 0 1 illegal: No possible last move
n4RRB/2r2N2/6n1/n1kB2Bq/1r4b1/r1BKNp2/rP2Pb2/1n2rbb1 w - - 0 1 legal: proof: f4 e5 d4 b5 a4 bxa4 g4 c5 g5 cxd4 g6 hxg6 Nf3 g5 Ng1 e4 Ra3 f6 Rf3 exf3 Qd2 g4 Qa5 Bc5 Qb5 Bf8 Qg5 fxg5 Kd2 Ke7 c4 Kd6 h4 a5 f5 d3 h5 g3 f6 g4 h6 g5 h7 g2 f7 g3 Nc3 g4 Rh4 a3 Rh5 a2 Rb5 a1N Rc5 a4 Rc7 a3 Nd5 a2 Rc5 Nb3+ Kc3 a1R Bd2 R8a2 Nb4 Qh4 Rb5 Ne7 Rc5 Na6 Nh3 g1R Rf5 g2 Be3 g3 Ng5 d2 Bb6 d1B Kd3 Ng6 Ne6 Bc2+ Ke3 Na5 Nd4 Qh5 Bd8 Nc7 Rc5 Bf5 Re5 Na8 Re4 Bh3 Nb5+ Kc5 Bg5 d5 Re8 d4+ Kd3 Bcg4 Nd6 Be7 Rb8 Rc8 h8B Rc7 f8B Rh1 Bfg7 g1R Rf8 g2 Nc2 Re1 Be3 Bh4 Bg5 Bf2 Ne3 Rh2 B7f6 Rgh1 Nf7 g1B Ke4 d3 Bc3 d2 Kd3 d1N Rg8 Kc6 c5 Bg2 Rf8 Rh4 Rg8 Kb5 c6 Kc5 Rf8 Bd7 Rg8 Rb4 Rf8 Bg4 Rg8 Ra7 c7 Rab7 c8R+ Rc7 Rcf8 Rh4 Bcf6 Nc3 Be5 Nb1 Bc3 Bh1 Bh3 Bg2 Nd6 Bf1 Nf7 Be6 Bf5 Rhf4 Be4 Bg4 Bd5 Rba4 Bh6 R4a3 Bg5 Rb4
rn4RR/1NR1bp1R/n4k2/2n5/4Kn2/1q1PBr1q/2qPbr2/2B1rqN1 w - - 0 1 illegal: Other
1r3q1b/1BKR2R1/b1qP4/RbP3nB/3b4/p1NbN1k1/pRr2r2/1b4n1 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 c4 e5 h4 exf4 b5 g5 Qc2 gxh4 Ba3 d5 Qc1 d4 Bb4 cxb4 Qc3 dxc3 Kf2 Kd7 Kf3 Ke6 Ke4 a5 d4 f5+ Kd3 h5 g4 b3 e4 b2 e5 a3 c5 a4 Kc4 c2 g5 c1B g6 h3 b6 a2 Kb5 h2 b7 h4 g7 h3 Nc3 b1B Nce2 f3 Ng3 f2 Ne4 f4 d5+ Kf5 d6 Kg4 e6 a3 e7 f3 e8B Nh6 g8R+ Bg7 Bc6 Nd7 b8R Ba6+ Kb4 Bb2 Ng3 Qf8 Ka5 Bd4 Rb2 Ne5 Kb6 Nhf7 Bd3 f1B Bde4 f2 Bb5 Bfd3 N1e2 f1R Bg6 Ng5 Nf5 Nef3 Bc4 Ng1 Kc7 Rf2 Nc3 Rb8 Ne3+ Kg3 Bd5 Rh4 Bh5 Bh8 Ba8 Rc2 Rg7 Rf4 Bb7 Rff2 Bg4 Ne2 Re1 h1B Bh5 h2 Rg1+ Bg2 Rd7 h1Q Rb5 Kf4 Ra5 Bc6 Rg2 Bcb5 Rg3 Rh2 Rg2 Ng1 Rf2+ Kg3 Rff7 Rcf2 Rg7 Bbc2 Re1 Bb1 Re2 Qe4 Rb2 Rc2 Be8 Rhf2 Bh5 Qc6+
b1B3Bk/q3r1r1/2Bb1p2/b7/R1rP2pn/2nqB3/PN1bbRK1/3r1N2 w - - 0 1 legal: proof: c4 d5 b4 dxc4 h4 g5 g4 gxh4 f4 a5 g5 axb4 f5 e6 Qc2 exf5 Qe4+ Be6 Qg2 Bc8 Qg4 fxg4 Kf2 h5 d4 b5 e4 c5 e5 f6 e6 c3 e7 Kf7 e8B+ Kg7 g6 c2 Be3 c1B Kg2 h3+ Kh2 b3 Bf4 c4 Bg2 b4 Be4 b2 Bg5 c3 Bf5 b3 Bfd7 c2 Bf4 h4 Nc3 b1Q Be3 b2 Nd1 Qa5 Be6 Ne7 Bb3 Ba6 Bd5 Nbc6 Bg2 Rh7 Bg5 Nd5 Be3 Kh8 Bd7 Rg7 Bg5 Nc3 Ne3 Ne7 Bd5 Re8 Nf3 Bd2 Be4 c1B Bc2 Nf5 Ne1 Ree7 N3g2 Be2 Be3 Qa7 Bca4 Qd3 Bac6 b1R Bc8 Rb4 Rf1 Rc4 Rf2 Ba3 Kh1 h2 Rb1 Bd6 Rb4 Bc7 Ra4 Bb6 Nf4 Ba5 Kg2 h1R Nf3 Rf1 Nh2 Rd1 Nf1 h3+ Kh1 h2 Kg2 Qc2 Nd3 h1B+ Kh2 Nh4 Nb2 Qd3 Kg1 Rb7 Kh2 Bd6+ Kg1 Rge7 g7+ Kh7 g8B+ Kh8 Bb5 Rbc7 Be8 Ba8 Bc6 Rg7 Kh1 Rce7 Kg1 Nf5 Kg2 Nh4+
1qR1n1b1/1r5r/1ppR1N2/1BN2n1r/PRn3r1/1nb1R3/2BrqP2/k1K5 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 fxe4 c5 axb4 c6 dxc6 Qb3 c5 Qd1 c4 g4 h6 Qf3 Bd7 Qh3 Bf5 h5 Be6 Qh4 Bc8 Ba3 gxh4 g5 Nc6 g6 Bh3 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 Kd1 Kd7 d4 Kd6 a4 Kd5 h6 e5 g7 g4 h7 c6 Bh3 e3 Na3 g3 Nb5 e4 Bf1 h3 Ra3 h2 Bd3 e2+ Kc2 e1Q Be2 b3+ Kb2 g2 Bh5 b6 Be8 e3 Bh5 e2 Be8 Be6 Nf3 g1R Nd6 Nd7 Ne4 Ne7 g8B Qb8 Ng3 Nf6 Bh5 Bg7 Ng5 Nf5 Bg4 Ra7 Nf7 Rb7 Bh5 Ne8 Ne4 Rg4 Rg1 h1R Bg6 Rh5 Nh6 Qd2+ Kb1 b2 B8f7 c3 Ng8 Kc4 d5 e1N d6 Nc2 d7 Qe2 d8R Nce3 Rd6 c2+ Ka2 c1R Nc5 Rd1 Nf6 Rd2 Kb1 Kb4 Rh1 Nc4 Rh4 Bd5 Re3 Be6 Ng8 Bc3 Nf6 Ka3 Bg8 Bd7 Bd5 Be6 Be4 Bg8 Bc2 Na5 Bf7 Nb3 Bc4 Kb4 Ka2 b1N Ba6 Na3 Bb5 Nc4 Kb1 Nba5 Kc1 Ka3 Rhh3 Ka2 Rhf3 Bf7 Rf4 Ka1 Rfe4 Rhg8 h8R R8g7 Red4 Rgh7 Rf8 Bg8 Rde4 Neg7 Rc8 Ne8 Rf4 Ne5 Rb4 Nec4 Rh3 Ka2 Rf3 Ka1 Re3 Nb3+
4B3/nNr1N2K/1R1P3p/3qR1p1/qb1q2b1/brP2k1n/1B4pB/q4B1q w - - 0 1 legal: proof: h4 d5 e4 dxe4 b4 c5 g4 f5 b5 fxg4 h5 c4 h6 Qd6 b6 Qh2 Qe2 axb6 Qd3 b5 Qb3 cxb3 Bg2 b4 Bh3 Nxh6 Bf1 Ng8 Ke2 Kf7 Ke3 Kf6 f4 Kf5 d4 b5 a4 g5 a5 e5 d5 h6 a6 b2 a7 b3 Ra4 g3 Rb4 Kg4 f5 g2 f6 Rh7 f7 Ne7 Nc3 b1Q Nge2 b2 Na2 Nbc6 Rc4 b4 Bd2 b3 Rg1 Rb8 a8B Na7 Nb4 Qh1 Nd3 Ng6 Rc3 Nf4 Rc5 Qa2 Nb4 b1Q Nc3 b2 Bc1 Qa4 Nb5 Qba1 Nd6 b1Q Nb7 Qba2 Nc6 Nh3 Bb2 Q2c4 Ra5 Ba3 f8B Rc7 Bd6 Bd7 Ne7 Qd4+ Ke2 e3 c3 e4 Bh2 Qa2 d6 Qad5 Nd8 Rb3 Bc6 Bf5 Be8 Be6 Ke1 Kf3 Nb7 Bg4 Ra6 Bb4 Rb6 Ba3 Bd3 e2 Kd2 e1B+ Kc2 Bd2 Re1 Bb4 Bf1 Bc1 Re2 Qdg1 Re1 e3 Re2 Qda5 Kd3 Qf2 Kd4 Qh4 Re1 e2 Kd3 Qf5+ Kd4 Qd3+ Ke5 Qd5+ Kf6 Qf2 Kg6 Qfd4 Rd1 e1Q Kh7 Qac6 Rd2 Qa4 Re2 Qed1 Re5 Qe1 Ba1 Bca3 Bb2 Qa1
Rb5B/1pqR1p2/qP2nB1r/Ppk1b1r1/3n4/1bb2Rr1/1N3R2/N4K1b w - - 0 1 legal: proof: f4 c5 g4 h5 b4 hxg4 d4 cxd4 f5 a6 f6 exf6 Nd2 f5 Nb1 f4 b5 d3 c3 Qc7 b6 Bd6 Bg2 Bf8 Bc6 Qd8 Qc2 dxc2 Bb5 axb5 a4 Ke7 h4 Kd6 e4 g5 c4 g3 h5 g4 e5+ Kc5 e6 d5 e7 f3 e8R g2 h6 g3 h7 f2+ Ke2 f1B+ Ke1 d4 Re4 d3 Rh6 Ne7 Rh5+ Nd5 Nh3 g1R Rf5 g2 Rh5 d2+ Kf2 d1Q Na3 Nc6 Re2 Qc7 Rhe5 Bd6 Rf5 Nd4 Nf4 Be5 Bb2 c1B Nc2 Be6 a5 Bd2 Re3 Rag8 Rf3 Bc3 Rf6 Qd3 Rd1 Rg3 Na1 Qg6 Rdd3 Qg8 Rd2 Qa8 Nd3+ Kc6 c5 Nf4 Ke1 Qa6 Rf2 Kd5 c6 Kd6 Rf5 Bb3 Rf6+ Nfe6 R6f3 Rhg8 h8B R8g5 Bf6 Rh1 Bh8 g1B Bf6 Qd8 c7 Bh2 c8R Qc7 Ra8 Bg2+ Rf1 Bg1 R1f2 Rh6 Bh8 Bh1 Kf1 Bh2 Bf6 Bb4 Bc3 Kd5 Nb2 Kc5 Rdd3 Nc6 Rd7 Ncd4 Bd2 Bc3 Bf4 Qc8 Bh8 Bb8 Bfe5 Qc7 Bef6 Rgh3 Ra7 Be5 Ra8 Rhg3
1RB4B/k4qn1/1b2r1NB/pPp1R2b/4b1rK/1Bq1P3/nn4pn/r4N2 w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 f4 bxa4 h4 g5 f5 gxh4 f6 exf6 Qb3 f5 Qf3 f4 Qg3 fxg3 b4 Kd7 d4 Kc6 b5+ Kb7 g5 a5 e3 f5 g6 h5 g7 a3 d5 c3 d6 f4 d7 f3 Bc4 h3 Be2 c2 Bc4 a2 Bd3 f2+ Ke2 f1N Kf3 h4 Kg4 h2 Nd2 h3 Nc4 Qe7 Be2 Ka7 Bd2 c1N Bd1 Nc6 Be1 Nd3 Na3 Ncb4 Bd2 Nf6+ Kg5 Rg8 d8B Qf7 Bh5 Nb2 Kh4 Bg4 Nf3 Bc5 Rd1 a1Q Ne5 Na2 Nac4 Ne8 Bg5 Bb6 Bc3 c5 Nd2 Rd8 Bd4 Rd6 Ng6 Re6 Bh6 Bf3 Rg1 h1B Bg4 Nh2 Nf1 Bhg2 Bf5 Bh5 Bf6 Ba8 Rd8 Be4 Rb8 g2 Rh1 Qc1 Bg4 Qc3 Be5 Rh8 g8B Rh7 Bh8 Rg7 Ne7 Rg5 Ng6 Ng7 Bf5 Re7 Bc8 Re6 Nd2 Ng4 Rf1 h2 Rf5 h1R+ Kg3 Nd1 Nf1 Nb2 Re5 Nh2+ Kh4 Qb7 Ng3 Ra1 Nf1 Rg4+ Kh3 Rf6 Bge6 Qf7 Bb3 Rg3+ Kh4 Re6 Ba4 Rg5 Bb3 Rg4+
bRBnB3/2nPp3/4r3/3r1Pkp/2R4q/NR1rb1p1/KNb2Rrq/4q3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 e5 dxc4 e6 fxe6 g5 e5 Bg2 e4 Bh3 Be6 Bf1 Bc8 h4 Nd7 g6 Rh6 Qg4 hxg4 h5 Ra3 Bb2 Rh7 h6 Rh8 h7 Ra8 Bf6 Nb8 Bg5 Nc6 Bf4 Nb8 Bh6 gxh6 Kd1 c5 Kc1 b5 Kb2 c3+ Kb3 h5 d4 g3 f4 c4+ Kc2 e3 a4 b3+ Kc1 c2 Kb2 c1R a5 b4 d5 e2 d6 e1Q a6 Rd1 a7 Nf6 f5 Rd5 g7 Kf7 g8R Nc6 Ra6 c3+ Ka1 b2+ Ka2 b3+ Ka3 c2 Rh3 c1Q Rg5 Ne8 Rg4 Kf6 Rf4 Bb7 Be2 Qc4 Nf3 Nc7 Ne5 Kg5 Rh2 Bh6 Rb6 Qc8 d7 Nd8 Rhf2 Rg8 h8R Rg6 Rf8 Re6 Nd3 Rb8 Rh8 Ba8 Rb4 Qc2 Rfc4 Qcd2 Rb5 Qf4 Bf1 Qh4 Rbb4 Rbb5 Bg2 Rdd6 Bb7 Rbd5 Rb5 Qb8 Bc8 Qb6 Re8 Qbd4 Rf8 Qh2 Rb8 Qdh4 Rf6 Re4 Re6 Red4 Re3 Re6 Ref3 Bb7 a8B Bc6 Nd2 b1R Nb2 Rd3 Bab7 Rd1 Nb1 R1d2 Ba6 Ba8 Bab7 Rde5 Bd5 Rc2 Nd1 b2+ Ka2 Rcd2 Na3 b1B+ Ka1 Bb7 Nb2 Bc2+ Ka2 Ba8 Re3 Rg6 Be6 Red5 Bf7 Re6 Be8 Re2 Rff4 Rg2 Rf2 R3d4 Reb3 Rd3 Ra4 Kf6 Re4 Be3 Rc4 Kg5
R7/n1p2rN1/2bpB2q/1bRpR1PN/6n1/b3qnP1/1B4bq/K2k2rR w - - 0 1 illegal: Other
3N4/2b3P1/B2nrKB1/qpr5/p2p1BPk/3bnn2/R1nBR2n/2n2Nq1 w - - 0 1 illegal: Other
r2N2R1/nq3n2/r2b1KP1/P1p5/kBrqp1r1/B3p2b/nR6/N2R1R1n w - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 c4 dxc4 f4 g5 Ba3 f5 Bc1 fxe4 f5 Ra7 Bh3 Ra8 Qf3 h5 Qf4 gxf4 g5 Na6 Bg4 hxg4 Kf2 Nb8 Kf1 Rh4 Ke1 Rh8 Kf2 Kd7 a4 Kc6 d4 b5 h4 e5 h5 f3 Kg3 f2 Kh4 f1N f6 e3 h6 e4 f7 b3 a5 b2 h7 c3 Ra4 c2 Kh5 g3 Kg6 g2 Nd2 b1N Ne2 g1R Nf4 b4 d5+ Kb5 d6 c5 d7 b3 Nh5 b2 Ng7 Rg4 Ra1 Ng3 Ne6 Bd6 f8R Nc6 Rd1 Nc3 Rff1 b1Q Ra2 Nh6 Nb3 Nf7 Ba3 c1R Rb2 Na2 Na1+ Ka4 Bb4 Rf8 h8B Nh1 Bhc3 Na7 Ba3 Rc2 Bcb4 Rc4 Kf5 Re8 g6 Re7 Kf6 Qh8+ Kf5 Qd4 d8R Rc7 Rg8 Rc6 Rbf2 Ra6 Rb2 Qd5+ Kf6 Qb7 Ng5 Qd3 Ne6 Qd4+ Kf5 Rh4 Bd2 Qdd5+ Kf6 Bd7 Nd8 Bh3 Bc3 Rg4 Bcb4 Qd4+
k2rb2r/pNP3b1/1n4N1/1K2R1pb/1R1N1bPp/p3q1b1/B2B1r2/1n5N w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 h5 f5 h6 fxe4 Qd2 gxh6 Qg5 hxg5 Ke2 h5 f4 d5 c4 Kd7 b4 Kc6 b5+ Kb7 c5 e5 b6 e3 Kd3 e2 g3 e1B f5 e4+ Kc2 e3 Kd3 h4 f6 e2 f7 a3 Rh2 Bd2 Bg2 e1B Nf3 Nf6 Nc3 Bd7 Rb1 Bf4 Ne2 Bg7 f8N Ne4 Rb4 Qe7 Ng6 Be8 Bd2 Nd7 c6+ Kb8 b7 Nb6 Bh3 Nc3 Be6 Nb1 Rh1 Bf2 Re1 Qc5 Neg1 Qc1 Re5 Qe1 Nh3 Qe3+ Kc2 d3+ Kb3 Be1 Nf2 d4 Nh1 Bf2 Rbb5 Rf8 Kb4 Rh8 Ba2 Be1 Bc3 d2 Ka5 d1B Bd2 d3 Rb4 Rf8 Nd4 Bh5 g4 Beg3 Kb5 Kc7 Be1 d2 b8N d1R Nd7 Rd8 Bc3 Rh8 Nc5 Kb8 Nb7 Rf1 Be1 Ka8 Bd2 Bf7 c7 Rf2 Kc6 Be8+ Kc5 Rd7 Kb5 Rd8+
5bK1/1NnRb1Pn/nbp2r1R/B3N1rb/1q4R1/1BpPp3/p2R4/k6q w - - 0 1 legal: proof: c4 b5 f4 h5 e4 g5 a4 bxa4 g4 gxf4 g5 f5 c5 fxe4 Qg4 hxg4 c6 dxc6 Kf2 c5 Ke1 c4 Ke2 Kd7 b4 Kd6 h4 Ke5 d3 Kd4 g6 a5 h5 e5 b5 c3 h6 f3+ Kf2 g3+ Ke1 g2 Kf2 a3 Kg3 a2 g7 a4 b6 a3 h7 e3 b7 e2 Bd2 e1B+ Kh2 f2 Kg3 Bg4 Bg5 Bh5 Kh4 Ra5 Nd2 Qe7 Rc1 a1Q Rc2 a2 Be2 Nf6 Ne4 Na6 b8R Qb4 Bd2 f1N+ Kg5 Ne3 Kh6 Ned5 Rb7 Bh4 Nd6 Rg8 h8R Nh7 Ra7 Bhe7 Nb7 Qe1 Rh3 Qh4 Rg3 Qh1 Bg4 e4 Ra8 Nhf6 Nd6 c6 Rd8 Ndc7 Rd7 Rg5 Rh7 Rh8 Nf3+ Kc5 Be6 g1B Nb7+ Kb5 Be3 Ka4 Bb6 Ka3 Rg4 Be3 Ba5 Bb6 Bb3 e3 Rb2 Nfe8 Rd2 Nf6 Rd1 Kb2 Rd2+ Ka1 Ne5 Rf5 Rgd4 Bg4+ Kg6 Rg5+ Kf7 Be2 Rh3 Rh6 Rc4 Nh7 Kg8 Rhg6 Rh6 Bh5 Rg4 Rf6
b2R4/n2Bbn2/rN1nQ3/p2r4/NbQ3Pn/1NQ3br/k2bKP2/5q2 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 fxe4 d5 c6 Bc4 cxd5 Be2 Kf7 Bf1 Ke8 h4 gxh4 c4 d6 b4 d4 c5 d5 Bb2 Qa5 Bc3 Qb6 Ra2 Qd8 Rd2 dxc3 Rd4 Nd7 Rc4 dxc4 Qe2 Nb8 Qd3 Bf5 Qd1 Bc8 g4 Kf7 b6 Ke6 b7 h5 b5 a5 c6 e3 b6 e2 c7 c2 Qd3 c1B Qh3 Kd5 Qc3 e5 Qh3 e4 Qg3 c3 Bh3 Kc4 Bf1 Kb3 Bh3 Qd3 Qf4 c2 Qd2 Nc6 b8N Ra6 b7 Be7 Bg2 h3 Na3 h2 Nh3 h4 Bf1 Nh6 Qe3 Rd8 Qc5 Na7 Ng1 h3 Qb6+ Ka2 Nb5 Rd5 Qd6 Bf4 Qd7 c1B Qe8 Nf7 Qd7 Bg3 Nf3 Qb1 Rg1 h1N Nfd4 h2 Qe6 Bd7 c8Q Bc6 Qg8 Bca3+ Kd2 e1N Ke2 e3 Nd7 Bab4 b8Q Ba8 Nb6 Nf3 Qbc8 Nh4 Qc3 Qa1 Bg2 Qc1 Rd1 Qa1 Ke1 e2 Nb3 Qb1 Be4 Qc1 Bd3 Qa1 Kd2 e1B+ Ke2 Bd2 Bf5 Qc1 Nd6 Qb1 Ndc8 Qa1 Na4 Qc1 Ncb6 Qb1 Rc1 Qd3+ Kd1 Qf1+ Qe1 Rb5 Qb8 Bh6 Qch8 Bc7 Qbc8 Ng3 Qc3 h1R Rb1 Bcd6 Q8c4 Ne4 Bc8 Rh3 Rb2+ Ka3 Rd2 Bg3 Rd8 Ned6 Bd7 Rg5 Kd2 Ka2 Qee6 Rc5+ Qf4 Rd5+ Ke3 Qg2 Ke2 Qh1 Qfd4 Bd2 Qdc4 Qf1+
br6/q1QKq1P1/N3BQN1/1r4N1/2p4q/4qnqP/kq1n1Q2/4R1rb w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 a3 exf4 Bb2 b5 Bc3 b3 Be5 b4 Bb2 Bc5 Bc1 b2 Nc3 b3 Nb1 Bb4 axb4 Bh3 Na3 Be6 Nb1 Bc8 g4 g5 d3 f3 Bf4 h6 Ra5 gxf4 g5 Na6 g6 Nb8 Rg5 hxg5 Kf2 Kd7 e4 Kd6 h3 f5 g7 c5 e5+ Kd5 d4 g4 b5 c3 e6 c2 e7 c1Q e8N g3+ Ke1 g2 Kf2 Ra5 b6 Nc6 b7 Rb5 b8Q Bb7 Qa8 Nf6 Qc2 Ne5 Qd1 Qe7 Qe2 Qe3+ Ke1 f2+ Kd1 f3 Qe1 f4 Qc3 Ne4 Qaa5 Ba8 Qa3 Nd2 Ne2 g1Q Qa2 Qg3 Qc1 Qgh4 Nbc3+ Kc4 d5 b1R Nc7 Rhb8 d6 Ra1 Bg2 f1B d7 f2 d8Q f3 Nf4 Qg3 Qc2 b2 Na6 b1Q Ng6 Qb2 Rg1 Bd3 Re1 f1Q Qc7 f2 Ne4+ Qc3 Q1b1 Nef3 Ng5 Qg1 Qb2 Qa3 Qf6 f1Q Bh1 Be2+ Kc2 Qff2 Qbb2 Qh4 Bg2 Qfg3 Bh1 Nh2 Bb7 Bf3 Bc8 Bh1 Qf2 Q1g2 Qbf6 Nhf3 Be6+ Bd5 Nb4 Qa7 Na6 Rab1 Re2 Rg1 Re1 Nb3 Kb2 Q2h2 Ka3 Nbd2+ Ka4 Qhg2 Qf5 Kc3+ Qff4 c4 Qf8 Kb2 Qf7 Ka2 Qf6 Rb1 Ka5 Bb7 Ka4 Rc1 Kb5 Ba8+ Qb7 Rb1+ Kc6 Q7a3 Kd7 Rb5 Qc7 Qb2 Re2 Qge5 Re1 Qgg3 Rb1 Q5c5 Re1 Qe7+
4b3/1bQ1r3/3K1p1Q/q2P2R1/rrnPR2b/q1Q1N3/1n3kB1/3rq1Rq w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 e5 c4 exf4 cxd5 g5 Bb2 gxh4 Nc3 bxc3 Ra3 cxb2 Ra2 Bc5 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 b1B g4 h5 e4 b5 d3 b4 g5 f3 a5 f2 a6 h3 g6 b3 a7 b2 g7 h4 Ra6 h2 Bh3 f1R Rd6 Rh7 Rg6 Be7 Rg4 Nf6 g8R Ne8 Rg2 Na6 Qe2 Nb4 Qd1 Bb7 Qh5 Nd6 R8g7 Rd1 Re2 Nc4+ Kf5 Kd4 e5 c5 e6 Qa5 Bg4 h3 Re5 Bh4 e7 f6 Ke6 Bc2 e8Q b1R Qeg6 Ba4 Qf7 Be8 Qc7 Rb3 Reg5 Ke3 d4 Nd3 Nf3 Rb4 Ne5 Kf2 Qh6 Ndb2 Re1 h1Q Re4 h2 Bf3 Qe1 Bg2 h1Q R7g6 Nb6 Rg7 c4 Kd6 c3 Nc4 c2 Ne3 c1Q R7g6 Re7 Rg8 Rb8 a8Q Ra4 Qa6 Qcc3 Qac4 Qa3+ Q4c5 Rb4 Q5c6 Ra8 Qc4 Qb5 Qc3 Raa4 Bf3 Qa6 Rg1 Qb5 Bg2 Qa5 Rg5 N6c4+
1q1Q3n/1K3nr1/2Q1Rn2/R1pP4/p2NB1PR/b3n1Qp/k4rp1/2q2b2 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 g4 h5 f4 exf4 b3 cxb3 Bb2 h4 Ba3 g5 Bc5 Nd7 Bf2 Nb8 Bg3 hxg3 h3 Bb7 h4 Bc8 h5 Nf6 Na3 Ne4 Nc4 Nf6 Ne3 Ng8 Nf5 Qd3 Nh4 gxh4 Bh3 Qd6 Bf1 Qd8 d4 Ke7 Kd2 Kd6 Kc3 Kd5 b6 a5 e3 f5 h6 h3 b7 a4 h7 b2 Kd3 b1Q+ Kc3 f3 Bb5 g2 Bd7 f4 Qe1 f2 Qc1 f1N Bb5 f3 Ne2 f2 Bd3 Nh2 Re1 Nd7 b8Q f1N Qa3 Qd1 Rb1 Ne7 Kb4 Ra7 Kb5 Ng6 Bf5 Rg8 h8R Nf3 Rh4 Qc1 Qd3 Rb7+ Ka6 Ba3 Rb5+ c5 Qg3 Ng5 Ra5 Rf8 Qd2 Kc4 e4 Nh8 e5 Rf6+ e6 Ngf7 Be4 Rf2 e7 Ne3 e8Q Nf6 Qc6 Kb3 d5 Qe8 Qc3+ Ka2 Nd4 Qe5 Qb4 Qb8 Qbb6 Ne5 Qd8 Rg7+ Qb7 Nef7 Kb6 Qe5 Qc6 Ba6 Ka7 Bf1 Kb7 Nc2 Bd3 Qe8 Re6 Ne3 Be4 Qf8 Ka8 Qd6 Kb7 Qb8+
R2Q4/2qPpnnP/2ppn1Q1/1q4RK/R2N4/1p3Bbb/5b2/1Qrn2k1 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 axb4 g5 b5 g6 b3 Ne2 b4 Ng3 Ra5 Ne2 hxg6 Ng1 g5 Bh3 g4 Bg2 Nf6 Bf1 Ng8 Na3 Rd5 Nc2 Rb5 cxb5 Nh6 Nd4 Ng8 Nc6 dxc6 d4 Qd6 d5 Na6 Bf4 Qd8 d6 Kf7 d7 Nb8 Bd6 cxd6 Ke2 Ke6 f4 Kf5 a4 g5 h4 g3 h5 Kg4 a5 g2 b6 Kg3 f5 g4 h6 b2 a6 b1N f6 e3 b7 b3 f7 Bg7 f8R Nc3+ Ke1 e2 a7 Na6 b8Q Bd4 a8Q Nc5 Rf5 Ba6 Ra4 Qc7 Qd8 Nf6 Qd2 Nh5 Rh2 Ng7 Rh4 Nce6 Qa2 Bf2+ Kd2 e1B+ Kc1 Nd1 Nf3 g1N Be2 Kg2 Rg5 g3 Qb1 Nh3 Nd4 Kg1 Bf3 g2 h7 Rg8 Qe8 Bf1 Qad8 Bg3 Qf7 Bef2 Kd2 Rf8 Qfe8 Rf5 Rhg4 Rc5 Qeg6 Rc1 Rga5 Nhg5 Ra8 Nf7 Rg5 Bd3 Be2 Bf5 Bf3 Bh3 Ke2 Bf5 Be4 Bh3 Kf3 Kh1 Bd5 g1Q Be4 Qf1 Bd5 Bg2+ Kg4 Qb5 Be4 Kg1 Bf3 Ne8 Kh5 Bf1 Bh1 Bh3 Bf3 N8g7+
Bbnn1Rn1/r4n2/1n3Qbp/1K1Pb3/1n2n2r/4QPq1/1B6/Q1N2qBk w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 g4 f5 g5 h5 Ra2 fxe4 h4 Rh7 Ra3 Nf6 Nc3 Bh3 Nd5 Nc6 Ne3 Be6 Ng4 hxg4 h5 Bc8 h6 Rh8 h7 Nb8 Rah3 Ng8 Rh6 gxh6 Ke2 Kd7 d4 Kd6 g6 Kd5 g7 b5 a5 e5 a6 c5 a7 c3 Nh3 e3 Kd3 c4+ Ke2 Ke4 d5 g3 Qa4 c2 Rh2 b3 Ng1 g2 Rh5 b2 Qa2 b1N Qb3 b4 Rh1 c3 Qa2 b3 Qa5 b2 Bd2 c1Q Rh2 c2 Nf3 g1B Bc3 Bf5 Bd4 Na3 Qc3 b1N Qc5 Nc4 Qb6 Qh4 Qc7 Nb6 Qd7 Bg6 Bb2 Na3 Qf7 Nac4 Qe6 Nd6 Qc8 Qg3 Bh3 Nc6 Bg4 Nd8 Qa6 Ndc8 Be6 Bd6 Nd4 Bb8 Rh1 Bh2 Qa1 Qb1 Qa4 c1N+ Kf1 Nd3+ Ke2 Nb4 Qa3 Kf4 f3 e4 Rc1 Qa1 Nb3 Be5 Kd1 e2+ Kd2 e1N Bd7 Ned3 Bc6 e3+ Ke2 Rb8 a8Q Nf2 Q8a4 Qb1 Ba8 Ne4 Rc3 Qbg1 Nc1 Rb7 Qd1 Ra7 Qe1 Bb8 Qa1 Be5 Rc6 Bb8 Re6 Ra4 Re8 Qf1+ Kd1 Ra7 Rf8+ Ngf6 Bd4 Qg5 Nb3 e2+ Kc1 Ng3 Rf7 Rf8 Kb2 Ne4 h8B Qg4 Qd2+ Kg3 Bg1 Kg2 Nc1 Kh1 Kb3 e1N Qdd4 Ned3 Qe3 Ne5 g8Q Bh5 Qgg5 Ng8 Qh4 Bg6 Rf4 Rf5 Bg7 Rh5 Rf8 Nef7 Bb2 Qf4 Qe7 Rh4 Qf6 Na4 Ka3 Qg5 Kb3 Bhe5 Ka3 Qg3 Kb3 Qff2 Kc4 Nab6+ Kb5 Qf1+
n1n2QBb/RP4b1/2q1rP2/6Br/1pb3q1/1r1B1q2/2q1Nq1Q/K3kqQ1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 c5 b5 cxd4 Kd2 f5 Ke1 fxe4 a4 b6 Nd2 Bb7 Rb1 Bc8 Rb4 Bb7 Nc4 axb4 a5 Bc8 a6 Nc6 Na5 bxa5 Kd2 Nb8 Ke2 Nf6 Ke1 Ng8 Kd2 Kf7 c4 Kg6 Kc2 Kf5 Kb2 e5 f4 h5 c5 d5 a7 h3 g3 e3 b6 Ke4 b7 h2 g4 a4 f5 h4 g5 a3+ Ka1 d3 c6 d2 g6 e2 c7 Ke3 g7 Kf2 Qb3 d1Q Bh3 e1Q Qa4 e4 Qc6 a2 Qb6+ d4 Kb2 a1B+ Ka2 e3 Qf6 d3 Qh6 e2 Bg5 d2 Qc6 Qf1 Qb5 e1R Ne2 Rh5 Qe5 Na6 Ng1 Be6+ Qd5 Qg4 c8Q d1Q Be7 Qb6 Qd8 Nc7 Bd6 Ne7 g8B Bfg7 Qb8 Nc8 Bg2 h3 Be4 Bf7 Qb3 Bc4 Bd3 Re6 Bf4 Ke1 Ne2 Qf2 Bg5 Qc1 Rg1 h1Q Rg3 h2 Rh3 Ba6 Qb1 Qc6 Re3 h1Q Rh3 Ne8 Qh2 Nc7 Re3 Bh8 Rf3 Bag7 f6 Qd1 Ka1 Bc4 Rf5 Qhf3 Ra5 Rb8 a8Q Rh3 Qa7 Na8 Qc5 Rh5 Ra7 Re3 Nc1 Qdd2 Qf8 Qc2 Bdh7 Rb3 Be4 Ne7 Bd3 Re8 Ne2+ Qc1 Ka2 Nc8 Qa1 Re7 Qd4 Qc2+ Ka1 Re6 Qe3 Q2g3 Qeg1 Qgf2
3q4/5b2/r2R4/nr2N1Br/K6b/1Qp1NN1n/1P1bkqPQ/nr1bb1Q1 w - - 0 1 legal: proof: h4 d5 d4 g5 c4 gxh4 a4 dxc4 e4 e5 d5 b5 Ra3 bxa4 Rd3 f6 Rd4 exd4 e5 f5 Bd3 Bg7 Bc2 Bf8 Be4 fxe4 Kd2 Kf7 Kc2 Kg6 f4 Kf5 d6 c5 e6 a5 d7 h5 e7 a3 e8Q c3 Kb3 h3 Qe1 e3 Qd2 d3 Ka4 h4 Kb3 a4+ Ka2 c2 Rh2 e2 Qe7 e1B Nf3 c4 Qf2 d2 Ng5 d1B Qe8 c3 Nf3 Ne7 Qc5+ Ke4 f5 Kd3 f6 Ke2 f7 Ra6 Qd4 Rh5 Qg7 Nc6 Qg8 Rb5 Bd2 c1B Qg4 Na5 Bg5 Bcd2 Be3 Ng6 Qee4 Be7 f8Q Nf4 Rh1 h2 Qh6 h3 Qb4 B7h4 Qb3 Bb7 Qge6 Bd5 Qb6 Bf7 Rf1 h1R Qh7 Ne6 Bg5 h2 Qg1 Nf4 Qh6 Nh3 Qh7 Qb8 d8N Qc7 Nc6 Qd8 Qd4 Rg1 Nce5 h1Q Qa7 Qh2 Qc5 Rh1 Qg1 Qg3 Qh5 Qf2 Qh6 Be3 Nbd2 Rh2 Ndc4 Bf4 Ne3 Rh1 Kb1 a2+ Kc1 a1N Kb1 Rh2 Ka2 Rh1 Ka3 Rh2 Nc2 Bfd2 Qh7 Rc5 Kb4 a3 Ka4 a2 Ne3 Rb5 Qe4 Nc2 Qf4 Rh1 Qfh2 a1R+ Qa2 Rb1 Qe6 Na1+ Qb3 Bc1 Nd2 Qg3 Rf6 Qf2 Ndf3 Bcd2 Rd6 Bg3 N5c4 Nf4 Qh8 Rh7 Qe5 Nh3 Qf4 Rh8 Nce5 Bh4 Qfh2 Rh5
2r1q3/R1nR2QK/1qn5/1Q2pn1k/1nrb1bn1/r1PP1Q2/1N4b1/R1B4b w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 d5 h5 f5 h6 fxe4 c3 c5 Ba3 c4 Be2 d4 Bc1 d3 Na3 gxh6 Nc2 dxc2 Bg4 h5 Bd7+ Kf7 Ba4 h4 Bb3 cxb3 Rh2 Ke8 Rh3 Nc6 Rh1 Nb8 Ke2 Kf7 Ke3 Kg6 Kf4 b5 a4 h5 g4 e5+ Ke3 h3 f4 b2 a5 b1Q g5 h4 d3 h2 a6 b3 a7 h3 Qf1 b2 f5+ Kh5 f6 b4 g6 b3 f7 Bc5+ Ke2 e3 Kf3 e2 Ke4 e1N f8Q Bb7+ Kf5 Ne7+ Kf6 Nf5+ Kf7 Nc6 g7 Bd4 g8R Qe8+ Kf6 Rc8 Bh6 c1B a8Q Bf4 Qd6 Nc2 Rg4 N2b4 Qdb8 Rg8 Rg2 Rg4 Nf3 Rh4 Rhg1 h1N Ra7 h2 Qc1 Nf2 Nd2 h1B Rg7 Rg4 Nc4 Rh4 Re7 Ng4+ Ke6 Bg2 Qf1 Bh1 Qf3 Bg2 Rh1 Qg1 Bg5 b1R Nb2 Ra1 Qc7 Ra4 Qab8 Ra3 Bh6 Ba8 Qb5 Qe3 Ra1 Qf2 Nd1 b2 Qcb7 b1N Nb2 Nd2 Qd7 Ne4 Qc7 Ned6 Qd7 Bh2 Bc1 Bf4 Qc7 Ne4 Qcb7 Nf6 Qc7 Nfd5 Qd7 Qd8 Kf7 Qb6 Qb7 Nc7 Rd7 Bh1 Rd8 Qc2 Kg8 Qb3+ Kh7 Qe6 Rd7 Qe8 Qf1 Nb8 Qbg2 Bc6 Qg3 Bcg2 Qff3 N8c6 Qe3 Nh2 Qg7 Ng4 Qf3 Bd2 Rf7 Bf2 Qfd5 Nge3 Nd1 Rc4 Qf3+ Ng4 Nb2 Bf4 Rd7 Bd4
2rb4/k2q1B1b/3BQp2/b2q2b1/1nN1QQP1/4K2R/2bPrr1q/3Bnq2 w - - 0 1 illegal: No possible last move
Q4b1R/r2r1B1b/Q2NnQ2/3q1b1P/nn1q2p1/R2br1k1/1r2nRP1/4K3 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nd2 exf6 Nb1 f5 Qd2 f4 Qd3 Qe7 Qd1 Qd8 Nc3 h5 Be3 g4 Ne4 h4 Ng3 hxg3 Bf2 gxf2+ Kd2 Ra7 Rc1 Ra5 Ra1 Ra8 c4 Ke7 e4 Kd6 a4 Ke5 h4 d5 c5 b5 h5 f5 c6 d3 a5 f3 a6 Kf4 e5 d4 c7 b3 e6 b4 e7 b2 e8Q b1R a7 b3 Qe6 b2 Qf6 Ne7 Be2 f1B Qe6 f2 Qa2 Qd5 Qaa4 Nbc6 Qdb3 Nb4 Ra3 Ng6 Qb5 Rh7 Bd1 Kg3 Ra6 f4 Be2 f3 Q5c4 Rd7 Ra1 Nf4 Ra3 Ne6 Ra5 Re1 Ra6 b1B Bd1 Re3 Kc1 d2+ Kb2 d3 Kc3 Be2 Ra3 f1N Nh3 f2 Qa6 Rb8 Bc2 d1Q a8Q d2+ Bd3 Rb7 Qb2 Ra7 Ng5 Qa4 Qa1 Qd1 Nf7 Qa4 Kb2 d1N+ Kc1 Nb2 Bc4 Bh7 Nd6 Bed3 Bb3 Nd2 Rf1 Nf3 Ba2 Nfd4 Kd2 Ne2 Bb3 Nd1 Qf6 Ndc3 Rc1 f1R Rc2 Rf2 Ke1 Qd4 Bd5 Qb3 Rd2 Na4 Rc2 Ng5 Bf7 Qbd5 Rd2 Ne6 Rb2 Bb7 c8R Bc6 Rc2 Bdf5 Rd2 Bb5 Re8 Bbd3 Rd8 Bh6 Rh8 Bf8 Raa2 Ng1+ Re2 Re4 Ra3 Re5 Re4 Rb2 Re2 Re3 Q6c8 Rf3 Rf2 Ne2 Qa6 Re3
1N1rnk2/1q4pQ/R3Rnn1/p2B3P/b1K1Q1q1/P5b1/1q2rQ2/2Rq1rq1 w - - 0 1 legal: proof: e4 b5 d4 f5 c4 bxc4 g4 h5 d5 hxg4 d6 c3 Nd2 exd6 e5 d5 Ne4 fxe4 Bd2 d4 Bc4 cxd2+ Kf1 Bb7 Kg2 Bc8 Bf1 d3 b4 d5 h4 c5 f4 a5 Kf2 c4 Ke3 d4+ Kf2 c3 b5 c2 f5 c1Q b6 e3+ Kg3 e2 Kf4 e1N Ke4 g3 b7 g2 a3 Qb6 Kd5 Nd7 b8R Qcb2 f6 Bd6 e6 Bg3 h5 Qb7+ Kc4 Kf8 f7 Ngf6 Be2 Ne8 Qc2 d1Q Bf3 d2 Bd5 d3 Nf3 g1Q Rc1 Ndf6 Ne5 Bd7 Nc6 Ng2 Rh2 Ra7 Ra8 Nh4 Re2 Ng6 Nb8 Ba4 Re5 Ra6 Re3 Rb6 Ra6 Qg4+ Re4 d1Q Qb1 d2 Qc2 Ke7 f8Q+ Kd8 Qg8 Ke7 Qh7 Rb5 Ra7 Kf8 Ra6 Nf4 Re3 Rb3 Re5 Re3 Qce4 Re2 Qd4 Qde1 Qf2 d1R Re3 Qed2 Re4 Rf1 Re3 Qd1 Re5 Nc7 e7+ Ke8 Ree6 Kf7 Qb1 Ng6+ Qe4 Rf8 e8Q+ Kg8 Qb5 Rd8 Qb3 Nce8 Qc2 Kf8 Qd3 Nf4 Qh7 Ng6+ Qdd4 Qf5 Qe4 Qg4
N5k1/1QQqBbq1/1pbbr1PB/1r3b2/1nP5/3bpK2/B2b2RQ/b1n5 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 c5 d4 cxd4 a4 f5 Ra3 fxe4 f5 Nf6 Nc3 Ng8 Nd5 h6 Nf4 gxf4 g5 h5 Rg3 Ra5 Rg2 Ra8 Rg4 hxg4 Ke2 Kf7 h4 d5 c4 e5 f6 b3 a5 b6 h5 e3 a6 g3 h6 b2 h7 b1Q a7 f3+ Ke1 f2+ Ke2 g2 Nh3 g1B Qd3 e4 Qc2 d3+ Kd1 d2 Ke2 d4 Qa2 Qb2 Qa5 Ne7 Qa2 Qd7 Qb3 Ng6 Qa3 Nc6 Qc3 Nb4 Rh2 Ne5 Rg2 Bd6 Qd3 Re8 h8B Re6 Rh2 Kg8 Qc3 Ned3 Qc2 Bb7 Nf4 Bc6 Bh3 Qc3 Rg2 d1B+ Kf1 Qb2 Nd5 Bg4 Nc7 Bf5 Ke2 Rc8 a8Q f1B+ Kd1 Bgh2 Qb7 Bhe5 Na8 e2+ Kd2 e1B+ Kd1 Rce8 g6 Bd2 Bg7 e3 Bh6 Qc3 Ba3 Nc1 Bg4 d3 f7+ Kh8 Bf3 Bd4 Bh5 Re5 Bf3 Rb5 Be4 Re6 Qa2 Qa1 Qb2 Bf6 Qe5 Bg7 Qh2 Qf6 Qc7 Qfe7 Qb7 Ba1 Qc7 Qf6 Qb7 Qg7 f8Q+ Qg8 Qf6+ Qgg7 Qfe5 Kg8 Qc5 Be1 Qce5 d2 Bb1 B1d3 Ba2 Re8 Qb8 Be6 Qef4 Bf7 Qb7 Re6 Qfg3 Bf5 Qe5 Ncd3 Ke2 d1B+ Kf1 Ba4 Ke2 Bc2 Qeg3 Bd2 Qe5 Nd5 Kf3 Nc1 Bc5 Bcd3 Bb4 Bf8 Qec7 Bd6 Bc5 Bde5 Bf8 Bd6 Be7 Nb4+
N1b2kqq/2n2b2/p2n2P1/1p6/1r2Pq1q/K3Q1qb/3QNb2/1BrNQ2R w - - 0 1 legal: proof: b4 b5 c4 g5 a4 e5 h4 gxh4 f4 exf4 c5 bxa4 b5 Bb7 b6 Ba6 Ra2 Bc8 Rb2 c6 Rb5 cxb5 c6 d6 Ba3 Ne7 Bb4 Ng8 Bc5 dxc5 d4 h5 Kd2 f5 Kc3 f3 Kb2 a3+ Kb3 c4+ Ka2 f4 e4 f2 g4 c3 d5 h3 b7 c2 g5 c1Q d6 f3 g6 h4 c7 h2 Bh3 f1B Nd2 f2 Kb3 a2 Qe2 a1Q Qd1 Na6 b8N Nf6 Bg2 h3 Qg4 Qac3+ Ka2 Qg3 Nc4 Qcf4 Nb6 Bc4+ Kb2 f1B N8d7 Bf7 Nc5 Bg7 d7+ Kf8 Qf3 Ne8+ Ka3 Nd6 Nca4 Bd4 Nc3 Bf2 Qe2 Rh5 Qd2 Rc5 Qe3 Rc6 Nd1 Rc1 Ne2 Qe8 Rg1 h1Q d8Q h2 Bh3 Bg2 Be6 Bh3 Qd7 Qd8 Ba2 Qdh4 Rf1 Qhg2 Bb1 h1Q Rg1 Q2f3 Rf1 Qfh5 Re1 Qh8 Rg1 Qhh2 Rh1 Qg8 Qd8+ Kg7 Qg5 Kf8 Qd5 Qhh8 Qd2 Qgh4 Qe1 Q2g3 Qd2 Nc5 Qe1 Ne6 Qd2 a6 Qe1 Rb8 Na8 Rb6 Qd2 Rbc6 Qe1 R6c4 Qd2 Bb7 Qe1 Rb4 c8Q+ Kg7 Qc4 Nc7 Qd4+ Kf8 Qdd2 Bbc8
r3q1q1/NKQpn1q1/R1bp4/PPB5/k2b1br1/3bQ2R/3n2Q1/n3Rn2 w - - 0 1 illegal: No possible last move, all moves rejected
4qbBR/6B1/2Bb1Kbp/bb1Nr1pk/1n3P1n/3rP2Q/5b2/rQ2rQ2 w - - 0 1 legal: proof: g4 b5 b4 g5 c4 d5 d4 f6 a4 bxa4 h4 dxc4 d5 e5 Nd2 Bb7 Ndf3 Bc8 Nd4 exd4 Ra3 Bd6 Rg3 gxh4 g5 Be7 g6 Bf8 Rg5 fxg5 Kd2 a5 f4 c5 g7 Kf7 d6 Kg6 d7 d3 Kc3 h3 b5 h2 b6 d2 b7 h6 Nh3 a3 Bb2 a2 Qe1 d1R Bg2 a1B Bc6 a4 Qh4 a3 Ba4 a2 Rg1 h1B Qf2 Qe8 d8Q Kh5 Qf6 Bf5 Re1 Ra5 Qb6 Bg6 Bb3 Rd3+ Kc2 c3 Bc4 Nc6 b8Q Nge7 g8B Nb4+ Kb3 c2+ Bc3 c1B Qc8 Nf5 Bcd5 Bd2 Kc4 Nh4 Bg7 Bd4 Bc6 a1R Qf1 Bf2 Ng1 Bhe4 Qbb7 Bef5 Rb1 Bd7 Rb3 Re1 e3 Raa1 Ne2 Bc3 Rb2 Be5 Rb3 Bed6 Nc3 Rh7 Nd5 Rh8 Kb5 c4 Rb2 c3 Kc4 c2 Qbb8 Rda3 Kd4 c1B Ra2 Rc3 Ra8 Bd2 Qbb5 Rh7 Qbd3 Rc5 Qb1 Rb5 Nb6 Re5 Nd5 Bdf5 Qd7 Bd3 Qdh3 Bb5 Ra7 Bfe7 Nb6 Bf8 Bf6 Rc5 Qa2 Na6 Qb1 Rc3 Nd5 Re7 Bh8 Re6 Rh7 Rca3 Bg7 Ba5 Rh8 Re7 Qc8 Nb4 Qe6 Bc5+ Ke5 Bd6+ Kf6 Rd3 Qeh3 Re5
3br3/3q1NN1/pQ3RK1/p1qQ2Pn/2P1q3/2r1pqnb/B6q/1b3kNQ w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 g5 e4 f5 b4 fxe4 a4 h5 a5 h4 f5 b6 Bf4 bxa5 Ra3 gxf4 Rg3 hxg3 Kd2 Kf7 c4 Kf6 h4 Ke5 f6 d5 g5 e3+ Kd3 g2 b5 f3 f7 Kf4 h5 Kg3 h6 Kf2 b6 e5 b7 e2 h7 e1Q Ne2 g1Q Na3 e4+ Kc2 d3+ Kb2 d2 Kc3 a6 Kd4 Qc7 Bg2 Ne7 Qc2 d1Q+ Qd3 Bf5 Bh3 Qc5+ Ke5 d4+ Kf6 Qh2 Qb1 d3 Qb6 d2 Ng1 Qb3 Ne2 d1Q Bg2 Qd7 Nb5 Bh3 Qd6 Nf5 Ng1 Be7+ Kg6 Bd8 f8N Qee3 Ne6 Ke1 Qd3 f2 Bf3 f1B Qd5 Bd3 Ng7 Kf1 Bd1 Bb1 Nd6 Qef4 Bc2 Qbf3 Bb3 e3 Nf7 Re8 h8Q Q4e4 Qh7 Nc6 b8Q Nb4 Qd4 Nd3 Qb6 Rb8 Ba2 Rb7 Qd5 Rb8 Qbd6 Rb3 Qb6 Rc3 Qh4 Nc1 Qh8 Ne2 Qh7 Neg3 Qh4 Qhc2 Rh2 Nh5 Rd2 Bg2 Qh1 Bh3 Rd3 Qh2 Rd4 Qef4 Re4 Qh4 Re6 Qhe4 Rf6 Nfg3+
4K2B/4n3/rPQ1pq2/QNbRr2k/qNr5/Q1pqp1n1/1Pb5/3rN2n w - - 0 1 illegal: Other
nb1Qr3/3q2K1/1bb2ppP/knR2P1Q/p6N/QBp2n1r/2q1B2B/3b4 w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 f4 dxc4 f5 g5 Kd2 e5 Ke1 exd4 b4 Bh6 g4 Qd5 Nc3 Qd8 Nd5 Bf8 Nf4 gxf4 g5 Ne7 g6 Qd6 g7 Qd8 Ra3 Ng8 Rg3 Nf6 Rg5 Ng8 Rg6 hxg6 Kd2 Kd7 h4 Kc6 e4 Kb5 e5 a5 h5 c5 e6 d3 Kc3 d2 e7 f3 e8Q+ Nc6 Bd3 a3 Nh3 f6 Qd7 a4 Bc2 a2 Rf1 a1B+ Bb2 f2 Qd6 Nge7 g8B Na7 Qe2 d1B Nf4 Bd7 Bb3 Nec8 Ng2 Nb6 Nh4 Bc6 Qde7 Ka6 b5+ Ka5 Bd5 Qc7 Bf3 Re8 Rh1 Na8 b6 f1N b7 Rh6 b8Q Nd2 Qbd8 Rh7 Q7e3 Bd6 Qh2 Rh6 Be2 Nf3 Qd3 Kb5 Rg1 Qd7 Rg4 Bb8 Rd4 Bc7 Rd5 Ka5 Qh3 Rh7 Qh1 Bb6 h6 Rhe7 Qh3 Re3 Re5 Nd4 Qg4 Rh3 Qh5 Nf3 Qb1 Nc8 Qa2 Nd6 Qa3 Ng5+ Kd2 Nf3+ Ke3 c3 Kd3 Nb5+ Kc4 c2 Bd4 Bc3 Bg1 c1Q Bh2 Bd2+ Bc2 Qb1 Bb3 Bf4 Rd5 Bb8 Re5 Qc8 Rd5 Bd7 Re5 Qc2+ Kd5 Nbc7+ Kd6 Bb5 Rd5 c4 Re5 c3 Rc5 Rh8 Ke7 Re8+ Kf7 Qb7 Rc4 Bc6 Kg7 Qc8 Rc5+ Nb5 Ng2 Qe6 Nh4 Qd7+
2N2qbQ/q1K2n1Q/1QPP4/p3r1p1/1N1p2n1/1pq1pB1R/p2b1N2/5k1r w - - 0 1 illegal: No proof kernel
1q2Bq1b/2n1Qb2/b1P5/3NR1qB/n1PB1rb1/q2b1k1B/1rqK4/3b2B1 w - - 0 1 illegal: Other
2R2R1n/5r1q/1Rq1PN2/4bPR1/4b2q/Krp2knQ/p3RB2/1b3bnq w - - 0 1 legal: proof: c4 b5 e4 g5 h4 gxh4 d4 f5 a4 bxa4 e5 d5 Bd3 e6 Be4 fxe4 Nc3 dxc4 d5 Ne7 d6 Ng8 Nd5 exd5 Kd2 Kd7 Kc2 Kc6 g4 h5 b4 a5 Kb2 e3 f4 e2 f5 e1N d7 c3+ Ka2 h3 e6 a3 g5 a4 g6 c2 g7 d4 b5+ Kd5 b6 Ke4 b7 c5 Bd2 c1Q Nf3 c4 Qc2+ d3 Qd1 h4 Bb4 d2 Ne5 h2 Rf1 h1B Rb1 h3 Rg1 h2 Ra1 Ne7 g8R Nbc6 b8R Ra7 R8g3 Ba6 Rg8 Nf3 Bc5 Rh3 Ng4 Bg7 Ne5 Ng6 Bd4 Nh8 Ra8 Qh4 d8R Rf7 Bf2 Ncd4 Rge8 Ne2 Rd5 Ng3 Ng6 Be5 Rg2 Ng1 Qb3 d1B Qb4 Bc2 Rd1 Kf3 Rac8 Qch6 Rd5 Qh7 Nf4 Bd3 Qb2 Be4 Re1 Bb1+ Ka1 a2 Re2 Bb5 Rd6 Ba6 Qd4 Bb5 Kb2 a1Q+ Kc1 a3 Rf8 a2 Rb6 Ba6 Nd5 Bb5 Qc5 Qad4 Qc7 Qde4 Nf6 Qc6 Qd6 Nh5 Rg5 Ng3 Qd2 Bg2 Qd4 h1Q Kb2 Bf1 Ka3 Ba4 Rg4 Bac2 Qd2 Be4 Qh6 c3 Qh5 Rh2 Rg5+ Qg4 Qh3 Qgh4 Bc5 Rf2 Reb2 Rd2 Bf2 Rdd7 Re2 Rb7 Ra6 Rb5 Rb6 Rb3+
7R/2nkb2b/1q1BpP1n/1R1p4/3K3n/R1n1RpQ1/1r1bPq1R/Nr5q w - - 0 1 legal: proof: f4 a5 b4 axb4 d4 c5 g4 cxd4 g5 e6 g6 hxg6 Bd2 g5 Bc1 g4 f5 Qg5 f6 Be7 Bg2 Qa5 Be4 Qd8 Bf5 Bf8 Nd2 exf5 Nb3 Nc6 Nc5 Nb8 Ne6 fxe6 Kd2 g5 Kd3 b5 a4 d5 h4 f4 c4 b3 h5 b2 h6 b1Q+ Qc2 g3 c5 b4 c6 f3 h7 g2 a5 g4 c7 g3 a6 b3 a7 b2 Rh5 Na6 Rg5 Be7 Rg7 Rb8 a8R Kd7 Bd2 Nh6 Nh3 g1Q Rf7 g2 Ra2 Qf2 Rf8 Qh1 Ra5 b1N Nf4 g1B Ng2 Rb2 Bb4 Nc3 Rb5 Bh2 Rf7 Bf4 Ne1 Bd2 Bd6 Rg8 h8R Rg1 Rff8 Bb7 c8R Nc7 Qa4 Ba6 Nc2 Rd1 Ra7 Rdb1 Rca8 Qb8 Na1 Qb6 Qc2 Ne4 Qd1 Ng3 Qg1 Ngf5 Qg3 Nh4 Rf7 Ng4 Rab8 Nh6 Rfh7 Ng6 Rbe8 Bb4 Rea8 Nf5 Rh3 Ngh4 Rh2 Bc8 Rba5 Nh6 Rc5 Ba6+ Rc4 Bb5 Ra5 Ba4 Rc3 Bc2+ Kd2 d3 Rc5 Qff1 Ke3 d2 Rb3 d1N+ Kd4 Bh7 Re3 Bd2 Ra4 Qf2 Ra3 Qb7 Rca5 Nc3 Rb5 Qb6+
2kq2Q1/rn2rQ2/n1q1bK1P/7N/1p1p1QR1/1n2P2n/rn1N3R/n2N4 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 c5 f4 cxd4 a5 b5 Ra2 e5 Ra4 exf4 Ra1 Bc5 g4 h5 Nh3 Bb6 axb6 g6 Ng1 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 Kd3 f1R Ke4 f5+ Ke5 d5 h4 Kd7 c4 d3 b7 d4 c5 b3 e3 d2 g6 b4 h5 f3 h6 f4 g7 b2 Ra5 g3 Ra3 f2 Ra6 f3 Ne2 g2 Qc1 g1N Rb6 d1N Ng3 Nf6 g8Q Na6 b8Q Ra7 Nc3 b1Q Qb3 Re8+ Re6 Re7 Qa8 Nb2 Qa2 Qc2 Qc4 Ne4 Nh5 Nh3 Rh2 Nd6 Kf6 Nb7 c6+ Kc7 Rd6 Be6 Nd1 Rg1 Rd5 f1N Rg5 f2 Rg4 Rg2 Qb1 Qa4 Qf5 Nd2 Qa2 f1N Qf4+ Qd6 Qc4 Nb3 Qg8 Na1 Qf7 Kd8 c7+ Kc8 Qa2 Qac6 Qb3 Kd7 c8N Nd2 Nb6+ Kd8 Qa2 Ndb3 Nc4 Kc8 Nd2 Qdc7 Qb1 Re2 Qbg6 Qd8 Qgg8 Nc4 Nb1 Ra2 Nd2 Nb2
1r1R3r/n2Qq1rN/4br1N/p3n3/2P5/1pPnQ1R1/1k3pK1/1qn1QN2 w - - 0 1 legal: proof: f4 e5 b4 exf4 a4 g5 h4 gxh4 b5 Ke7 b6 axb6 a5 Ke8 c4 Bc5 e3 Bd4 a6 Bb2 Bd3 Bc3 Bc2 Nf6 Ba4 Ng8 Bb5 c6 dxc3 cxb5 Ba3 Nc6 Bb4 Nb8 Ba5 bxa5 Kf2 Ke7 g4 Ke6 e4 Ke5 g5 h5 g6 f5 a7 d5 g7 h3 Qf1 h2 Nh3 b4 Qg1 b5 Qg6 b3 Rg1 h1R Rd1 d4 Rd3 b4 Rd2 d3 Ng5 b2 Qh7 f3 Kg3 b3 Rf2 d2 Ra3 d1N Rh2 f2 Rh4 f1R Ne6 f4+ Kg2 f3+ Kg3 Nd7 Nd4 Rhg1+ Kh3 Nf2+ Kh2 Nd3 Nd2 b1Q Nf5 Rb8 a8Q Qe7 Ra1 Nc1 Rg4 h4 Rg3 h3 Qa7 Kf4 Qd4 Ne5 Nh6 Be6 Qd7 Ke3 Qd4+ Ke2 Qe3+ Kd1 Ra2 Nc6 e5 Nf6 g8N Nd7 Nf6 Na7 Rb2 Qg6 Rb1 Kc2 Qg7 Qf5 Nh7 Qe4 Ra1 Kb2 Qg4 Qb1 Qf5 Rd1 Nf1 Rd6 Qfe4 Rg2+ Kh1 h2 Qh4 Bf7 e6 Ne5 Qhd4 Rc6 Qd7 Rd6 Rg8 Rg7 Rd8 Qf8 e7 Rf6 e8Q Be6 Qg6 Qe7 Qg3 f2 Qe1 Ncd3 Kg2 h1N Qg5 Ng3 Qge3 Qa2 Rd1 Qb1 Rg8 Nb4 Rd4 Ne2+ Rg4 Nbd3 Rg3 Nec1 Re8 Nf3 Rd8 Nfe5
Q3rbnN/3p1NQP/2q1b2p/1P3pbk/R7/1R2R3/3r1p1b/rKQ1q3 w - - 0 1 legal: proof: b4 e5 d4 c5 a4 cxd4 f4 exf4 c4 b5 Na3 bxa4 b5 Na6 b6 Nc7 Nb1 Nb5 cxb5 h5 g4 Ba3 h4 Bf8 g5 Ke7 Bh3 Ke8 Bg4 hxg4 h5 Nh6 g6 Nf5 h6 Rh7 Ba3 Rh8 h7 Nh6 Be7 Ng8 Bg5 Ne7 Bh6 gxh6 Ra3 Ng8 Ra2 Be7 Ra1 Bf8 Kd2 a5 Kc2 f5 e4 g3 b7 a3 b8Q f3 g7 Kf7 e5 Kg6 e6 a2 e7 a4 e8R g2 Nd2 a3 Ne2 g1B Kc1 d3 Ng3 f2 Re7 Bh2 Re2 Qb6 Nde4 Bb7 Nd6 Bd5 Nf7 Be6 Ne4 Kh5 Neg5 d2+ Kc2 Ra4 Qc1 d1R Re3 Ra7 Rb1 a1B Qa8 a2 Rbb3 Bf6 Rg1 a1Q Rg4 Qc3+ Kb1 Qbc6 Rd4 Qe1 Ra4 Ne7 g8Q Rd2 Qg7 Ng8 Nf3 Ra6 N3e5 Bg5 Ng6 Ba3 Qc8 Ne7 Rae4 Re8 Qa8 Ng8 Ngh8 Bf8 Rd4 Ra3 Ra4 Ra1+
rqkbR1r1/1N2rR1n/2P2PQq/1qN2b2/6r1/2Kn1q2/1n1NQr2/2bR4 w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 h5 Bh3 c5 Bf4 gxf4 g5 cxd4 Bg4 hxg4 Kd2 b5 a4 d5 c4 Kd7 h4 e5 a5 b3 g6 b4 a6 f3 a7 g3 g7 g2 h5 e3+ Kd3 f2 h6 f1R h7 e4+ Ke2 b2 c5 b3 Qd3 Qb6 Qc2 Nf6 g8N Rf2+ Ke1 e2 Kd2 e1R+ Ne2 g1R Nh6 e3+ Kd3 Rg4 Rf1 Rhg8 h8R Be7 Rg1 Na6 Qc1 Bd8 Ra2 Nh7 Nf4 e2 Nh5 Nb4+ Kd2 d3 Kc3 d2 Nf7 d1Q Ra5 Nd3 Ra1 Qh6 Nd2 b1Q f6 b2 c6+ Kc7 Ra4 Bf5 Nf4 Kc8 Ne6 d4+ Kc4 Nf4 Nc5 d3 Kd4 Qb3 Qd1 Qb8 Qc2 Qd1 Kc3 b1Q Rh1 Q1b5 Nd6+ Kc7 Ndb7 Kc8 Nb1 d2 Qb2 R8g6 Re8 Rg8 Rae4 Nd3 R4e7 Reg1 Qc2 e1B Rf7 Qf3 Qd1 Re4 Qe2 R1g4 Rg1 Rfg2 Rf1 Bh4 Rd1 Bg5 Na3 Rf2 Nc4 Re7 Ne6 Qc7 Nec5 Rb8 a8Q Qch2 Qa5 Ra8 Qb4 Qb8 Qb1 Nc1+ Qed3 Be6 Rh1 Be3 Qg6 Nd3 Qd1 Bf5 Qe2 d1N+ Kc2 Bd4 Nd2 Bb2 Rf1 Bc1 Re1 Ne3+ Kc3 Nc4 Rd1 Ncb2
1b2NKnQ/qP2r1P1/R1n3rN/Q2R3N/1n2nR2/1q5b/r1r1k2n/2q3b1 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kd3 Ke7 Kc4 Ke6 b4 Kf5 Kd5 f1R c4 a5 h4 d3 h5 d2 b5 f3 e4+ Kf4 h6 Ke3 b6 f5 e5 g3 h7 g2 b7 f4 e6 f2 e7 f3 Kd6 a3 c5 a2 g6 a4 c6 a3 c7 Nc6 g7 Re1 Nc3 f1R Qa4 d1N Rh3 Rf2 Qa5 Rc2 Nb1 Nf2 Rh1 Ne4+ Kd5 f2 e8Q f1N Qh5 Nh2 Qe5 Qg5 Nc3 Bd6 Rd1 a1Q Nge2 g1B Nf4 a2 Nh5 Kf3 Ne2 Qgc1 Neg3 Kf2 Nf5 Ke2 Qd4 Be5 Qda4 d6 Nh6 Bh3 c8N Bg3 Nf5 Bf4 Ke6 d5 Kf7 d4 Rd3 Bb8 Ncd6 Ra7 Rd1 d3 Kf8 d2 Nh6 Qd4 Ne8 a1N Qa2 Ra6 Q2d5 Qa7 Qdd8 Ra2 Qh4 Nc2 Qhd8 N2b4 Qc8 Be3 Rf1 Bg1 Rf4 Rc2 Qg5 Raa2 Qa5 Qb2 Ra1 d1Q Qcd8 Qd2 Rd1 Qdc3 Rd5 Qcb3 Ng4 Nd6 Qf6 Ne5 Qh6 Qc1 Rfd4 Kf3 Re4 Re3 Rc4 Ke2 Rf4 Nf6+ Ke7 Rf8 h8R Rg3 Qh7 Nde4 Qg8 Rg2 Rh6 Rg3 Qh8 Ng8+ Kd8 Rg2 Ra6 Nec6+ Kd7 Rf5 Nh6 Rgg5 Ke6 Re5+ Kf7 Re7+ Kf8 Rg6
1n1Q1R2/1r3q1B/3R2B1/2P2bQq/1b4b1/3nrq2/RqK1bbP1/b3k1Br w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 h5 fxe4 h6 c5 Qe2 c4 Qd1 gxh6 Bb2 h5 Bc1 h4 Ne2 d6 Nd4 d5 Nb3 Ra5 Na3 cxb3 c4 Ra4 c5 Ra8 Nc4 dxc4 f4 Kd7 d4 Ke6 Kd2 Kf5 a4 b5 a5 e5 d5 h5 a6 h3 d6 h4 d7 h2 a7 b2 Qf3 b1Q Qd3 Kg4 f5 c3+ Kd1 e3 f6 Kg3 f7 Kf2 Qe4 b3 Ra2+ b2 Qd4 b4 Bb5 e4 Bd3 b3 Bb5 h3 Qd3 Rh7 Ba6 Qe8 d8R Nh6 Bc4 Bg7 f8Q+ Qf7 Qd5 Qd3+ Bd2 b1B Rd7 c2+ Kc1 e2 Qh8 e1B Ra3 e3 Qg8 e2 Ra5 Ng4 Rb5 Ne5 Rg1 h1Q Qd6 h2 Bb4 Qdf3 Ba5 Bb4 Qe6 e1B Qd5 Ba2 Rd6 Bg4 Kb2 Bb1 Bc7 c1Q+ Ka1 Qd2 Qd8 Bbf5 Ra5 Nd3+ Kb1 Ba1 Ra2 b2 Rf1+ Ke2 Bb5 Bf2 Be8 Qc3 Qg5 Qcg7 Kc2 Qd4 Rd1 Qdf6 Rd2+ Ke1 Rd8 Qh8 Rc8 Rh3 Qdd8 Qhh5 Be5 Qf1 Bg7 h1R Bd4 Q1e2 Be3 Na6 Bd4 Rb8 a8B Rb7 Be3 Nb8 Bd4 Qd7 Bg6 Qf7 Bh7 Qc6 Bg6 Re3 Bh7 Qcf3 Bg6 Rd7 Be4 Rb7 Bh7 Bd7 Beg6 Bb5 Qd6 Bc4 Rf8 Ba6 Qdd5 b1B+ Kb3 Nf4+ Bd3 Bg1 Ra5 Ree7 Raa2 Be3 Bdg6 Bbf5 Rd3 Re6 Qdd8 Qb2+ Ka4 Bg1 Be3 Bc4 Rd6 Be2 Bd4 Nd3 Be3 Qd4 Kb3 Re8+ Kc2 Qdg7 Bf4 Bf2 Bh2 Re3 Bg1 Qb2+
5Q2/Nr1rP1nq/r3kN2/rqB5/BQb1KP2/q7/1bNqQbn1/1b3r2 w - - 0 1 legal: proof: e4 g5 h4 gxh4 d4 c5 g4 cxd4 b4 e5 a4 a5 Rh3 d3 Rf3 axb4 Ra3 Qg5 Rc3 Qd8 Rc4 f6 Rd4 exd4 e5 f5 Rf4 Nh6 Re4 fxe4 Qd2 Ng8 Qe2 Qg5 Qd1 Qd8 Kd2 Ke7 c4 b5 f4 d5 g5 h5 c5 e3+ Ke1 b3 c6 d2+ Ke2 b4 Kf3 h3 a5 h4 e6 b2 g6 b3 c7 d3 g7 h2 a6 h1Q+ Bg2 e2 a7 e1B Ne2 h3 Ng1 d4 Ke4 h2 Qf3 d1Q Qe3 d2 Ne2 d3 Qg3 Nh6 g8Q Bg7 Qe3 Nf5 Qg3 Qd6 Na3 b1Q Nc2 b2 Qe3 Nc6 Ng3 Rh7 Nh5 Ba6 c8Q Nb4 Qcc5 Nd5 Nb4 Bc4 Qe2 Nde3 Ng3 Bf2 Bf3 Ng2 Nh5 Qa4 Qb5 d1R Nf6 d2+ Qd3 Re1+ Be2 Qba2 Qa5 d1R Be3 Qb5 Ng4 Rd2 Bb6 Ra1 Bd1 b1B Qh8 Qaa4 Bc5 Bb2 Nf6 Rf7 Bc2 Ng7 Qe2 Qb3 Qa4 Qg3 Qb3 Ra5 Qc3 Rd3 Ba4 Qh3 Nc2 Rd5 Qce1 Qa3 Bb6 Qdd7 Qb4+ Rd6 Bd4 Rb8 a8N Rb7 Nb6 Qd8 Qc3 Rc6 Be3 Qd2 Qe8+ Kd6 Qb8+ Rfc7 e7 Ke6 Qf8 Rd7 Nc8 Rca6 Qb3 Qf1 Bb6 h1R Na7 Qg1 Bc5 Qh2 Qc3 Rf1 Qb4 Qh7+
r1r3r1/b4P2/7Q/rqBnb3/nR2b3/3bRPkq/1Q2B1n1/Q1K1qq1B w - - 0 1 illegal: Other
r3Bn2/3r4/Pr1P2Qn/Q6b/1bNpKq1B/N3brr1/2B5/Qr1rk1q1 w - - 0 1 legal: proof: d4 g5 c4 c5 f4 a5 h4 gxh4 g4 e5 b4 axb4 a4 exf4 Rh3 d6 Rd3 Ra6 d5 Ra5 Rd4 Ra8 Rd2 Qd7 Rd4 cxd4 c5 Ne7 c6 Qd8 Ra2 Ng8 Rc2 Nf6 Rc3 Ng8 Rc5 dxc5 Kd2 Ke7 Kd3 Kd6 e4 Ke5 a5 b5 c7 h5 g5 f5 a6 h3 g6 h4 g7 h2 Qe1 h1R Na3 b3 Qe3 b4 Nb5 b2 Be2 b1R Nc3 h3 Na2 h2 Qh3 b3 Bb2 c4+ Kd2 c3+ Kd3 c2 Bg4 c1B Qh4 f3 Qh7 Kf4 e5 Kg3 e6 Kf2 e7 f4 e8Q Bb4 d6 Qg5 Qf8 Be3 Qh6 Rh7 Be6 Ke1 Qh5 f2 Bc1 f1Q+ Ke4 f3 Nc3 b2 Bd7 f2 Be8 Nd7 Nb5 Nh6 g8Q Qg3 Qe7 Nf8 Na3 Bg4 Qa5 Bh5 c8B Rg7 Qeg5 Rd7 Q5g6 Qg5 Qa2 Qg3 Nh3 Rg1 Ng5 h1R Qa1 Rg2 Bb7 Qg1 Nf7 f1R Ne5 Rf3 Nec4 Qg5 Bc6 Rgg3 Ba4 Qf6 Bc2 Qf4+ Kd5 Kf1 Bd2 Rd1 Bc3 b1R Be1 Rh2 Be4 Rhb2 Bc2 Rh3 Bh4 Rhg3 Qe6 Ke1 Qg6 Bbd2 Qf7 Rb6 Qg6 Qf6 Ke4 Bb4 Qf7 Qg5 Qg6 Qf4+
r1N1Qb1K/2bn1n1b/p4nPP/nrNb4/1k6/2n2Q2/B1bB1Q2/1Nq1r3 w - - 0 1 legal: proof: g4 b5 a4 bxa4 b4 h5 d4 c5 h4 cxd4 f4 e5 Bh3 g5 Ra3 gxf4 g5 e4 Bf1 Bb7 Rf3 exf3 Rh3 Ba6 Rg3 Bc8 Rg4 hxg4 Kf2 Ke7 e4 Kd6 c4 f5 b5 Kc5 b6 d5 h5 d3 h6 a6 b7 a3 e5 a2 e6 a1B e7 g3+ Ke1 f2+ Kd2 d4 e8N f3 Qa4 g2 Nh3 g1N Nd6 f4 Qb3 Qc7 Qc2 Be6 Be2 f1N+ Ke1 f2+ Kd1 f3 Qc3 d2 Kc2 d1N Kd3 Nd7 Ke4 d3 b8Q d2 Qbb3 Bd5+ Kf5 Ngf6 Kg6 Nfe3 Qa2 f1R Nf7 f2 Nf4 Re1 Nd6 f1B Nc8 Nf3 Qd3 Bh3 Ne6+ Kb4 c5 Nc3 c6 d1B Nc5 Nc4 Bd2 Na5 Qe3 B1b3 Bc4 Bc2+ Qd3 Qf4 c7 Bhe6 Bb3 Bg8 Qf5 Rb8 Qb2 Rb5 Ba2+ Bcb3 Qbc2 Qc4 Qcd3 Bc2 Qf1 Bb2 Qf2 Ba3 Qe4 Bd6 Kg7 Bh7 g6 Nfe5 Qef3 Nf7 Nb6 Bg3 c8Q Bc7 Qa8 Rb8 Nc8 Qf1 Qc6 Ra8 Qe6 Re2 Qe5 Qc1 Qe8 Re1 Nb3 Ka4 Be3 Bb4 Bd2 Bbd6 Nc5+ Kb4 Q3e3 Nfe5 Qef3 Bf8+ Kh8 Nf7+
q2R2Q1/q4Q1K/8/3RQ1Pn/b1qp1qN1/bq1rqN2/P1n5/1k2rNbn w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 Kd3 Ke7 Ke4 Ke6 c4 f1N h4 b5 c5 f5+ Kd3 Kd5 c6 g3 e3 b3 c7 b4 h5 b2 h6 f3 h7 f2 Qa4 g2 Ne2 g1B Rh2 f4 Ng3 f3 Qa7 b3 Nd2 Ba3 Qa4 Nf6 Nb1 Nc6 Nf5 Re8 h8Q Nh5 Nh6 Nfg3 Ng8 f1Q+ Re2 f2 Qh6 Nh1 Qg6 Nb4+ Kd2 Kc4 e4 d5 e5 d3 Ke3 d2 e6 d1Q e7 Bb7 c8Q+ Bc6 Nh6 Qde1 Nd2+ Kc3 Nf3 b1Q Qb5 b2 Qf7 Qh7 Rd1 b1Q Nf5 Qb3 Ng3 Ra7 Qce6 Rd7 Qg8 Qg7 Qef7 Qa8 Rd4 Qc1+ Red2 Qfc4 Nf1 Qh7 Qb8 Ba4 Qe5 Qg7 Nh4 Qe1+ Kf3 Qh7 Kg4 Nc2 Nf3 Kb2 Rd1 Qg7 Kf5 Qee3 R1d2 Kb1 R2d3 Red8 e8N Re7 Nf6 Re6 Ng4 Ree8 Qff8 Qga7 Kg6 Rd7 Qff7 Ree7 N1h2 f1Q Kh7 Qfc1 Nf1 Qf4 Qeh8 Re1 Qe5 Qce3 Rc3 Qce2 Rc8 Qec4 Rd3 Re7 Rd8 d4 Rc3 Rd1 Rd5 Rd3 Rd8 Qcd5 Rc5 Qdc4 Rcd5 Qd2 Qeg7 Re1 Qe5 Qde3
1Q6/2r1rrb1/k1rpNPb1/2nPrr1b/6q1/1B3Q1n/n1qN3N/QB3K2 w - - 0 1 legal: proof: b4 a5 a4 axb4 e4 c5 e5 g5 e6 c4 Ra3 fxe6 Ra2 e5 Rb2 e4 Rb3 cxb3 f4 h6 g4 Qc7 h4 Bg7 f5 Qb6 Rh3 Qc7 Rf3 Bf8 Rf4 Qd8 Bb2 Nc6 Bf6 gxf4 g5 Nb8 g6 Qa5 Bg5 hxg5 Nc3 Qc7 Nb1 Qd8 c4 e5 d4 b5 c5 g4 c6 b2 f6 f3 h5 e3 h6 e2 c7 d6 d5 Kd7 a5 f2+ Kd2 e1R a6 e4 g7 g3 h7 b3 a7 b4 Qh5 g2 Bd3 f1R Qh6 Na6 Ne2 g1N Qg6 Ne7 g8Q Nc5 Nf4 Nh3 Q8f7 Bg7 Qg1 Rf8 Nh5 Rf5 Nc3 b1B h8N b2 Qg2 b3 Nd1 e3+ Kc3 e2 Qfg6 Nc6 Kd2 Nb4 Ne3 Rf7 Bc2 Na2 Nc4 Qg8 Nf4 Rc1 Qf1 e1R Qg3 Ree7 Ne6 Re1 Qg4 Ree5 Ng6 Rb8 a8B Rb6 Qgf3 Rc6 Nh4 Ba6 Be4 Kc8 Ke2 Bc2 Qe1 b1Q Kf1 b2 Bd3 Qc1 Nd2 b1R Qd1 Rb4 Qe1 Qb2 Qa1 Rc4 Be4 Bd1 Bc2 Bb5 Bb1 Qc2 Bb7+ Kd7 Ba6 Rc3+ Kg2 Bd3 Bc4 Kc8 Bb3 Kb7 c8Q+ Ka7 Qe8 Ka6 Qb8 Be4 Kf1 Qc8 Qf4 Bh5 Nhf3 Qd7 Nh2 Rc7 Ke1 Qa4 Qf3 Bd3+ Qe2 Qg4 Qe3 Be4 Qf3 Nd3+ Kf1 Rg5 Qf4 R3c6 Nf8 Beg6 Ne6 Nc5 Qf3 Rgf5
1nk1Bq1n/B1Pp1qQR/3Bb2Q/r2R1Pb1/2b2n2/6qr/q1q2q2/K4Q2 w - - 0 1 illegal: No possible last move, all moves rejected
b1k2nR1/rq5Q/q2n1nr1/Pb1Q2rp/Q4n1n/K4b2/1PB2b2/1B2B2R w - - 0 1 illegal: No proof kernel
2nq1n2/Bn6/3R1nnp/1bb1bQR1/qQ1QR1Kb/P1r1r3/3P4/1Br4k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 g5 dxc4 Na3 e5 Qc2 exf4 Qa4+ Qd7 Qd1 Qd8 h4 Nh6 Nc2 Ng4 Nf3 Rh6 Ncd4 Rd6 Nf5 Rh6 Nh2 Rh7 Nh6 Nf6 N2g4 hxg4 h5 Rh8 Ng8 Bd7 h6 Be6 h7 Bc8 Nh6 gxh6 Bg2 Ng8 Bh3 Ra5 Bf1 Ra8 Kf2 Kd7 e4 Ke6 g6 Ke5 a3 f5 g7 c5 Rh5 b5 Ra2 c3 Qa4 g3+ Kf3 c4 Bb2 g2 Rh2 g1B Qa7 b3 Rh4 b4 Rg4 Bd7 Bg2 Bgc5 Rg3 Ne7 g8R Ng6 Qb6 Bb5 Rg7 Nd7 Rh3 Rc8 Ba1 b2 Qa6 b1R Bf1 b3 Rc2 b2 Qb7 Bfe7 Rf7 Ndf8 Rh4 Rc1 Qd7 b1Q Bg2 Qb3 Qa7 Qa4 Rg4 Bh4 Rb2 c2 Rc7 c3 Bh3 Rg8 Kg2 f3+ Kh2 f2 Bg2 f1N+ Kh3 f4 Rb3 f3 Qb8 f2 Rf4 Nh2 Qb7 f1N Rf2 Ng4 h8Q+ Nf6 Re2 Kf4 e5 Ng3 e6 Nge4 e7 Nd6 e8Q Rg7 Re6 Re7 Rd7 Rc6 Qf7 Nc8 Bf1 Kf3 Re4 Kf2 Rdd4 Kg1 Bd3 Kh1 Rd6 Rcc7 Rbb4 Rc6 Rg4 Re3+ Rg3 Rg1 Rbd4 c1N Bb1 c2 Re4 Nd3 Bd4 c1B Qfd7 Rc7 Qf5 Bb2 Qg7 Rc1 Qgd7 Bb4 Ba7 R7c3 Qg7 Nc5 Qbe7 N6d7 Qd4 Nb7 Kg4 Bc5 Qef7 Nge7 Qfc4 Neg6 Qb4 Nf6+ Kh3 Nd5 Qd3 R3c2 Qdc4 Be5 Qd4 Ree1 Rg5 Re3+ Kg4 Rc4 Qb3 R4c3 Qbb4 Nf6+
1qQKN2B/1b6/rq1BnN1b/1p6/bN2n1n1/q3k2r/P3B1QP/q4rb1 w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 c5 b4 cxd4 Nd2 axb4 Ne2 fxe4 f5 Ra7 Rg1 Ra4 Rg3 Ra8 Rf3 h6 Rf4 gxf4 g5 h5 Rb1 Ra4 Rb3 Ra7 Rg3 Ra8 Rg4 hxg4 Kf2 Kf7 c4 d5 g6+ Kf6 c5 Kg5 c6 e5 g7 f3 Kg3 f2 f6 e3 c7 d3 f7 b3 Nf4 d4 Bg2 f1R Bh1 e4 Ne2 b2 Nc4 b1Q Nb2 d2 Nd3 Rh3+ Kg2 g3 Nc3 e2 Nb4 Kf4 Bb2 e1Q Qa4 d1N Nc2 e3 Qb5 d3 Nb4 d2 Nc2 e2 Na1 Nf2 Qd5 d1B Nc2 Nf6 g8N Na6 Ne4 N6g4 Nb4 Ba4 Nef6 Qec1 Ne8 e1Q Ngf6 Bh6 f8B Ne4 Bd6+ Ke3 Ba1 b5 Bc3 Bb7 c8Q Qb6 Bb2 Qa1 Qdc6 Kd2 Bd4 Rg1+ Kf3 Nc7 Bg2 Ra6 Bf1 Rh1 Be2 Qg1 Bb2 Qa7 Bd4 Qb8 B4e5 Qb6 Bd4 Bf8 Kf4 g2 Kf5 g1B Kg6 Bg7 Kf7 Bh6 Ke7 Qa3 Bb2 Ke3 Kd8 Bf2 Bc3 Rf1 Bce5 Bg1 Bb2 Nc3 Qg2 Ne4 Nh7 Ngf2 Bh8 Ng4 Nhf6 Ne6+
2q4Q/Q1qR4/QNP1p1bn/1qnnP1n1/7n/4q3/R3rbRr/Nk1K2n1 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 c5 g4 cxd4 g5 f5 g6 f4 Nc3 f3 Ba3 bxa3 Bg2 fxg2 Nb1 hxg6 Nd2 g5 Nb1 g4 h4 Kf7 e4 Kf6 c4 Ke5 a5 d5 h5 g5 h6 b5 a6 d3 f4+ Kd4 h7 a2 f5 d2+ Ke2 b4 f6 b3 c5 b2 c6 g3 a7 g4 f7 Qc7 e5 Bf5 Rh4 e6 Na3 Kc3 Nc4 b1Q Qe1 Kc2 Nb6 d1N Qf1 d4 Nd7 d3+ Ke1 d2+ Ke2 Bc5 f8Q Nh6 Nf6 Nd7 Qf2 Ne3 Nf3 g1Q Qd6 d1N Nd2 g2 Ng8 g3 Nb3 Nd5 Rh3 Bg6 Qf3 Bf2 Na5 Nc5 Nb3 N1e3 Qe7 Nef5 Nf6 Nh4 Nd7 Qb2 Rb1 a1Q Rd1 Qa6+ Rd3 Rad8 a8R Qac8 Nb6 Kb1+ Rd2 Rd6 Na1 Qb5+ Rd3 Qc1 Ra2 Qe3+ Kd1 g1N Qe2 g2 Rg3 Ngf3 Rg5 g1N Rg2 Ng5 Qf1 Q7d8 Qa7 Qdc7 Rdd2 Rdd8 Qc4 Rdg8 Qca4 Rf8 Q4a6 Rf4 Rd3 Rc4 Rd4 Rc2 Rd3 Re2 Rdd2 Rf8 h8Q Rf3 Rd4 Rh3 Rdd2 Rh2 Rd3 Ne7 Rd7 Nd5
n2B1bR1/nP2K1br/6k1/3q1qB1/b4Qb1/PR2Qpr1/Bn1n3R/4qq2 w - - 0 1 illegal: No possible last move
b3n3/3nqnbR/3kB1BP/nP2r3/2rqb1pQ/1n5K/3qpQQ1/2B2R2 w - - 0 1 legal: proof: d4 b5 g4 c5 e4 cxd4 a4 bxa4 f4 f5 Kd2 h6 Ke1 g6 Ne2 fxe4 f5 g5 Nf4 Ba6 Nd2 Bb7 Nf3 gxf4 g5 Ba6 g6 Bc8 Ng5 hxg5 Kf2 a5 Kg2 d5 b4 Kd7 h4 e5 c4 f3+ Kg3 d3 f6 a3 g7 e3 h5 d4 c5 a4 f7 f2 c6+ Kd6 c7 a2 h6 e2 b5 e1N Rg1 d2 Rb1 a1N Bd3 f1B Bg6 a3 Qf3 d1Q Bh5 d3 Rb4 d2 Qb7 e4 Kh2 a2 Bb2 e3 Qh1 e2 Rg2 Qe7 Bc1 Nf3+ Kg3 Bf5 c8Q Nf6 g8B Be4 Kh3 Bg7 f8Q Nb3 Be8 a1N Qg1 Nbd7 Bg6 Na5 Be6 Ne8 Rb1 N1b3 Qc3 Rc8 Bg4 Rc4 Ra1 Nfe5 Qff2 Nf7 Be6 Qe1 Qh1 d1Q Qcf3 Qed2 Qh5 Qd4 Qhh4 Q1d2 Qhg1 Nc6 Ra7 Nca5 Kh2 Rh7 Rg3 Bfg2 Rf3 Bh1 Kh3 Ba8 Rf5 Bhe4 Qgg2 Be5 Bb2 Nd8 Bd5 Qf8 Qhf4 Re7 Bc1 Ndf6 Qe1 Re6 Re7 Nd7 Rh7 Nf7 Qfh4 Qe7 Rf1 Bg7 Qef2 Re5 Be6 g4+
1r3Q2/q1nQ2pq/2nB1r1Q/3B4/KbP2B1n/p1kr2NP/2n4q/N2b2b1 w - - 0 1 legal: proof: d4 b5 b4 c5 a4 bxa4 g4 cxd4 g5 e5 g6 e4 Ra3 hxg6 Rb3 g5 Ra3 g4 h3 f5 Rd3 exd3 e4 Nf6 e5 Ng8 Rh2 Qa5 Rg2 Qd5 Rg3 Qa5 Re3 Qd8 Re4 fxe4 Kd2 Ke7 c4 Ke6 f4 d5 b5 a5 b6 g3 b7 e3+ Ke1 g2 Bd2 e2 Bc3 d2+ Kf2 e1N Ke2 d3+ Ke3 a3 Kd4 a2 Bb4 a1N Kc3 a4 Ba3 d4+ Kb2 Qc7 Qc1 d1R Nd2 Na6 b8B Ne7 Ngf3 g1B Qb1 Nac2 Be2 Qa7 Bad6 a3+ Kb3 Ng2 Ne4 d2 Nh4 d3 Qb2 Nc7 Qc1 Nc6 Bf3 Rh6 Nf5 Nh4 Neg3 Rf6 Ne3 Bd7 Bg2 Be8 Be4 Bh5 Bg2 Rf1 Bf3 d1Q Be4 d2 f5+ Kf7 Bf3 Qe2 Bg2 d1Q Bd5+ Re6 f6 Rf3 Qd2 Qh2 Qc1 Kg6 f7 Ref6 e6 Qdd2 Bf4 Bb4 f8Q Qd1 e7 Qd3+ Ka2 Qf5 Kb3 Bg4 Bd6 Qh5 Qd2 Qh7 e8Q+ Kg5 Qd7 Bh5 Be7 Kf4 Qc1 Ke5 Bd6+ Kd4 Bf4 Na6 Bbd6 Rb8 Ka4 Kd3 Nef1 Kd4 Nd2 Rd3 Nb3+ Kc3 Na1 Bf3 Qe3 Bd1 Qee6 Rf5 Qg6 Rf6 Qh6 Nc7#
2B2b2/K3NN1b/BP1n3n/2n2nq1/1BPN3n/1Q1pp3/r4bQ1/rnk1r3 w - - 0 1 legal: proof: e4 b5 h4 c5 f4 g5 a4 bxa4 d4 cxd4 g4 f5 b4 fxe4 f5 Kf7 Rh3 Ke8 Rf3 h6 Rf4 gxf4 g5 h5 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 Kf7 c4 a5 g6+ Kf6 g7 Ke5 f6 d5 b5 f3 f7 Kf4 b6 e5 h5 a3 h6 g3 h7 e3+ Kd3 a2 Bh3 a1N Na3 g2 Nc2 a4 Bd2 a3 Nb4 f2 Bd7 f1N Na2 e4+ Ke2 d3+ Ke1 d4 Bh3 Na6 Bg4 Ng3 Qa4 Nc2+ Kd1 Nf5 Nf3 g1B Ne5 Qg5 Bh5 Nc5 Bg4 Nd6 Be6 Bf2 Qb3 Nh6 Nc3 a2 g8B Na3 Nb5 Nb1 Nc6 a1R Ne7 R8a2 Bb4 d2 Ke2 Bb7 Bc8 Bd5 Ba6 d1N+ Kf1 d3 Nd4 Qf5 Kg2 e2 Qc3 Ke3 Qb3 Bg7 f8Q e1N+ Kf1 Nf3 Kg2 Be6 Qa8 Bf8 Bf7 Bd7 Be6 Qg5+ Bg4 Rg8 h8N Bf5 Nf7 Bh7 Qb7 Ndf5 Qa8 Ndc3 Qb7 Kd2 Qd5 Ng3 Bgc8 e3 Qc6 Kc1 Qd5 Ne5 Qc6 Ng6 Kf3 Ngf5 Qe4 Qg1 Qg4 Rg7 Qg2 Ngh4+ Kf4 Rg6 Ke5 N3e4 Kd5 Ned6 Kc6 Rg3 Kc7 Rh3 Kb8 Rh1 Qg7 Qg5 Ka7 Re1 Qg6 Qh5 Qg2 Qg5
rq5B/3Rnk2/1R1Bp3/n1rPnb2/B2b4/KQ1rR1rP/1r4Qp/1rn5 w - - 0 1 legal: proof: e4 d5 b4 g5 c4 dxc4 b5 f5 b6 fxe4 h3 g4 Na3 g3 Nb1 axb6 Be2 b5 Bf1 b4 Nc3 h5 Nd5 Nh6 Nf6+ Kf7 Nf3 Ng8 Nh2 gxh2 g4 Rh7 g5 Rh8 Ng4 hxg4 Ba3 Ke8 Bb2 Ra5 Bc1 Ra8 a4 b5 f4 c5 d4 e3 g6 g3 f5 e2 Kd2 e1N f6 c3+ Ke2 g2 a5 g1R g7 b3 a6 b2 a7 b1R Bg5 c2 Kd2 c1N Kc3 b4+ Kc4 b3 Qd3 b2 Ra3 Rg3 Bg2 Nf3 Rd1 Nc6 Qb3 Bf5 Bh4 e6 f7+ Kd7 Bg5 Nge7 g8R Qb8 Bf6 Bg7 f8B Ke8 Ra6 Kf7 Rb6 Rh7 Rd3 Bh8 Re3 Nfe5+ Kc3 Na5 Bc6 c4 Kb4 c3 Ka3 c2 Ba4 Rh4 d5 Rd4 Rg4 Nc8 Bd6 Rd3 Rc4 Ne7 Rc7 Ne2 Bg7 c1R Rd7 Rc5 Bf6 Rbc1 Bg7 b1R Bf6 R1c2 Bg7 Nc1 Bf6 Qb7 Bg7 Rd8 a8Q Rcb2 Qa6 Ra8 Qc4 Re8 Qe4 Ra8 Qh1 Qb8 Bf6 Bg7 Qg2 Bf8 Bh8 Bh6 Re1 Be3 Re2 Bd4 Re1 Rgf3 Re3 Rg3
4Qq1q/1np3R1/b1n1p3/4Q1bp/KrN3Pr/PnQq2N1/N6k/2b1rR2 w - - 0 1 legal: proof: h4 d5 e4 g5 c4 gxh4 b4 dxc4 b5 f5 Ba3 fxe4 Bd6 Bg7 Bd3 Bf8 Bc2 b6 Bc5 bxc5 b6 a6 Ba4+ Nc6 Bb5 axb5 Rh2 Nb8 Rh3 Ra5 Rh1 Ra8 d4 Kf7 Kd2 Kf6 Kc3 Kg5 g4 Kf4 b7 e6 d5 e3 a3 b4+ Kc2 e2 d6 e1R f3 Kg3 d7 b3+ Kb2 h3 f4 h2 f5 c3+ Kc1 b2+ Kc2 c4 f6 Bh6 f7 Ne7 f8Q Ra4 Nh3 Nec6 Qc5 Qf8 d8Q Na5 Ng1 Rb4 Q1d4 Bg5 Nd2 Nbc6 b8N Ba6 Qe8 Nb7 Ne2+ Kh3 Rf1 h1Q Ng3 Kh2 Qde5 h6 Rd1 Rh7 Kb1 c2+ Ka2 c3 Nc4 c1B Rd7 c2 Rg7 b1N Qd7 Nd2 Qe8 Nb3 Qc3 Qd5 Qa5 Qd3 Qae5 Bcd2 Kb2 c1Q+ Ka2 Qd1 Kb2 Qh8 Ka2 Q1f3 Kb2 Ncd8 Nc6 Qff8 Ka2 Rb5 Nb4 Nc6 Kb2 Rb6 Na2 Rb4 Rg6 Rf7 Rg7 h5 Qd7 Rf2 Qe8 Rg2 Qc8 Rg1 Qe8 Rh1 Qd7 Nbd4+ Qb3 Kg2 Qd8 Rh4 Qe8 Ra4 Qc3 Kh2 Nd6 Nf3 Kb3 Bc1 Qd7 Rf4 Qe8 Nfd4+ Ka4 Nb3+ Qed4 Rf5 Qf6 Rd5 Qfe5 Rb5 Nc4 Rb4+
1Qq2NB1/q4b1n/pb1K2b1/PB6/Nk1P1qpn/2r1Q1bp/8/Q1B1r1n1 w - - 0 1 legal: proof: g4 d5 c4 b5 h4 bxc4 a4 g5 e4 dxe4 b4 gxh4 g5 f5 Ra3 Qd4 Rg3 Qd8 Rg4 fxg4 Ke2 Kd7 Ke3 Kc6 Kf4 e5+ Ke3 h5 f4 a6 d4 h3 a5 Kb5 f5 c5 g6 h2 g7 h4 f6 h3 f7 Nf6 g8B Qe7 Qb3 Bf5 Bb2 Nh7 Qd1 Nd7 Qe2 Rc8 Bc1 Bg6 Kf2 e3+ Kg3 e4 Kf4 Ne5 Qf3 e2 Be3 e1N Bc1 e3 Be2 Ng2+ Kg3 Nh4 Kf4 Qa7 Qg2 Nef3 Bf1 e2 Nd2 e1B Ne2 c3 Qf2 c4 Qe3 c2 Nb1 Ng1 Ke5 Bc5 f8Q Bb6 Nf4 Bg3 Kd6 Ka4 b5 c3 Qf7 Kb4 Qa2 Bf7 Qa1 Rc4 Bd2 c1Q Bd3 Qf1 Bc1 c2 Nc3 Bg6 Na4 Rc3 Bdc4 Ne2 Rg1 h1B Rg2 Bf7 Rf2 Ng1 Be2 Be4 Bd3 Bd8 b6 Beg6 b7 Bb6 b8Q Qg2 Bd2 c1Q Bb5 Qgf1 Rf3 Qc2 Bc1 Qf5 Rf2 Qc8 Rf3 Nf6 Rf2 Rh6 Rf3 Nh7 Rf2 Rh5 Rf3 Re5 Ne6 Re4+ Rf4 Re5 Nf8 Re7 Qf2 Re1 Qe3 Qxf4+
1q1qB1r1/1KP1R1nb/4Q1Q1/QP1p4/nbpp2nb/2Bn2k1/r7/2B1q2R w - - 0 1 illegal: No possible last move
r3N1Q1/1kp1n3/3b1qn1/n2qp2p/2N2N1b/6PP/QKb1qQ2/2q2rRR w - - 0 1 legal: proof: c4 f5 b4 d5 e4 dxe4 b5 f4 b6 axb6 c5 bxc5 Bb2 c4 Ba3 c3 Bc4 g6 Bc5 Bg4 Be6 Be2 Be3 fxe3 f4 Bf3 f5 Bg4 f6 Bf5 Bb3 Bd7 Be6 Bc8 Bf5 gxf5 a4 Kd7 d4 Kc6 a5 b5 d5+ Kb7 h3 h5 f7 e5 d6 f4 d7 e2 Qc1 b4 Ra3 f3 Qf4 c2 Kd2 e1B+ Kc1 e3 Qg5 f2 Qg4 f1Q Ra2 b3 Nc3 e2 Nd5 Qff6 Ra1 Ne7 Nf4 Bh4 g3 e1Q+ Kb2 c1N Qg8 Ng6 Nf3 Bd6 f8Q Nc6 Nd2 Nce7 Nc4 Rh7 Rg1 Rf7 a6+ Kc6 a7 Qe2+ Kc3 b2 Rh1 Nb3 Rag1 Qg4 Kc2 Qe2+ Kb1 Na5 Ka2 Rb8 a8Q+ Bb7 Qa7 Ra8 Qf2 Ba6 Qfg7 Rf8 Q7f7 Kb7 Kb1 Bb5 Qe6 Ba4 Ka2 Qe8 Qef7 Bc2 d8N+ Ka6 Qd5 Qc6 Nde6 Kb7 Ng7 Rf7 Qd2 Qd5 Ne8 Rf8 Qc5 b1Q+ Ka3 Qbd1 Kb2 Qg5 Qce3 Rf5 Qa3 Qf6 Qa2 Qdf1 Ne6 Rf2 Nf4 Qfd1 Qe3 Rf1 Qf2 Qc1+
RQb1r2b/n1p5/kn2P3/1pK3RQ/qp1q2Q1/6rP/1NN4q/1b1qRr2 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 c4 a5 c5 axb4 c6 g5 Bh3 dxc6 Qc2 c5 Kd1 c4 Bb2 Ke7 Kc1 Ke8 Qd1 f3 Be5 f2 Bf4 gxf4 g5 Ke7 Bf5 Ke8 Bg4 hxg4 Kc2 Kd7 d4 Kc6 a4 Kb6 e4 f1Q e5 f5 h3 g3 g6 f3 e6 g2 g7 f4 d5 f2 d6 f3 a5+ Ka6 d7 b5 Na3 c3 Kb3 c2 Qb1 c1Q Nc4 Qa3+ Kc2 Nc6 Nb2 Nf6 g8Q Nd5 Qd1 Bg7 Ne2 g1Q Nd4 Qh2 Rg1 Na7 Rg5 Nb6 Qe2 Qfg1 Re1 Qa4+ Kd3 f1B Nc2 f2 Ke4 Rh6 Qh5 Bh8 Qg7 Bd3+ Kd4 Rg6 Kc5 Qf6 d8Q Qg4 Qgg8 f1R Qd4 Qd1 Qdg4 Bd7 Qb8 Bc8 Ne3 Bb1 Nc2 Qfd8 Rge5 Bb7 Qg2 Nc6 Qc8 Ka7 a6 Q8d2 Qe4 Rg3 Rg5 Qd7 Qeg4 Q7d3 Qd7 Re8 Qd5 Bc8 Qde4 Ka8 a7 Kb7 a8R Q3d2 Qd5 Qd3 Qdf3 Qe4 Qg2 Na7 Qh1 Ka6 Qg2 Qf4 Qb7+ Ka5 Qb8 Ka6 Qgh4 Qfd2 Q4g4 Qd4+
QR3R2/Pqrr2p1/1Q1Q1qP1/1n2p2k/b1B4n/p5bn/1q4q1/R1B1b2K w - - 0 1 illegal: No possible last move, all moves rejected
1b2r1QB/pnrp1p1b/b2Br1n1/N2k1n1q/2qP2N1/nBQ5/4P3/QK6 w - - 0 1 legal: proof: h4 c5 g4 g5 f4 gxf4 a4 f3 b4 cxb4 g5 b5 Rh2 h5 Rg2 bxa4 Rg4 e5 Ra3 hxg4 Rc3 Rh6 Rc4 Rh8 Rf4 exf4 d4 Ke7 Kd2 Ke6 c4 a3 Kc2 a2 h5 a1N+ Kb2 f2 g6 g3 c5 b3 h6 f3 h7 g2 c6 Nc2 g7 Na3 c7 Bd6 Bd2 Kd5 Ba5 Qg5 Be1 Ne7 g8Q Qh5 Bd2 Nbc6 Ba5 Ba6 c8Q Nd8 Nd2 Bb8 Qdc1 Nb7 Qd1 Ng6 Qg7 Re8 h8B Re6 Nh3 g1R Bg2 f1N Qgg8 Ne3 Qc3 Nf5 Nf2 Rf1 Qb1 Rc1 Bc7 Rc2+ Ka1 b2+ Ka2 Rc1 Qa1 b1B+ Kb2 Be4 Ng4 f2 Nc4 f1Q Bd6 Qd1 Na5 Qd3 Qd2 Rc7 Qc3 Qc4 Bh3 Nc2 Kb1 Na3+ Kc1 Nfe7 Bf1 Ne5 Qc8 Bh7 Nh2 Ke4 Qf8 Qc5 Qc8 N5g6 Ng4 Nf5 Qg8 Rc6 Bf8 Bc7 Bd6 Rae8 Kb2 Bb8 Ka2 Ng7 Kb2 Rc7 Bg2+ Kf5 Bc6 Qc4 Ba4 Ke4 Bb3 Nf5 Kc1 Kd5 Kb2 Nb5 Kb1 Na3+
1N1b4/B2KN1Nb/4b1bp/1B1Q2n1/2Br2PP/4knp1/nqpn3r/1Q1n4 w - - 0 1 legal: proof: e4 d5 h4 dxe4 g4 g5 c4 f5 b4 f4 a4 a6 b5 axb5 Ra3 bxc4 Rg3 c3 f3 Qd4 Rh2 Qd6 Rf2 fxg3 f4 Qd3 f5 Qd8 Rf4 gxf4 Ke2 Kf7 d4 Kf6 a5 e5 d5 c5 a6 b5 d6 c2 a7 h6 d7 c4 Be3 c1N+ Kd2 c3+ Kc2 f3 Bh3 f2 Nf3 f1B Ne1 b4 Qd4 b3+ Kd1 b2 Kc2 Ne2 Kb3 Qb6+ Ka4 Na6 d8Q+ Be7 Qc4 Nb4 Qdc7 Bd8 Q4c5 Na2 Nc2 Be6 Nba3 b1B Nd4 Qb2 Bf2 e3 Qc8 e4 Q5c6 Ke5 f6 Kf4 f7 Nf6 f8N Nh7 Nc4 Ng5 Q8b7 Rh7 Bg1 Rd7 Nf5 Rd4 Nd7 Bd3 Bg2 c2 Qcb6 Nec3+ Ka5 e2 Nb8 e1N Ne7 e3 Bc6 e2 Nd6 Nef3 Ne8 e1N Ng7 Bdf5 Bb5 Bh7 Qd5 Bfd3 Ka6 Bdf5 Kb7 Nd1 Kc6 Bfg6 Bc4 Nd2 Qbb5 Qa1 Qb1 Qb2 Bf2 Nef3 Bb5 Bef7 Kd7 Bfg8 Nbc6 Rb8 a8B Rc8 Nb8 Be6+ Kd6 Rc3 Bac6 Ra3 Bc4 Re3 B6b5 Re2 Bg1 Rh2 Bf2 Re4 Ba7 Rd4 Kc6 Ke3 Kd6 Beg8 Kd7 Be6+
1K3nQB/b5Q1/b1p4B/3PN3/b3pp1b/nk2Pbp1/N3n1q1/rrB3N1 w - - 0 1 legal: proof: c4 a5 g4 h5 a4 d5 b4 dxc4 g5 axb4 Ra3 f6 Rg3 f5 Rg4 hxg4 h4 f4 e3 f3 Nh3 Rh5 Bg2 Kf7 Qe2 Rh6 Kd1 Nf6 Kc2 Ke8 Re1 Rh8 Qd1 Ng8 Re2 fxe2 f4 g6 f5 Na6 f6 Nb8 Be4 Bd7 Bd3 Bc8 Bf5 gxf5 d4 Kf7 a5 Ke6 g6 Kd5 g7 e1B f7 b5 h5 e5 a6 c3 Kd3 c6 h6 b3 h7 b2 a7 b4 Ng1 f4 Qe2 b3 Qc2 Nf6 g8N Nfd7 Nh3 Bc5 f8B Bh4 Bg7 g3 Qe2 c2 Nh6 Nb6 Qh2 N8d7 Ng5 Ba6+ Kc3 Nc4 Nf3 Na3 Ng4 Nf8 Bd2 c1N Ng1 Bb6 Kb4 Ne2 Ka4 Kc4 Nc3 b1B Na2 b2 Bh6 Qd5 Bc1 Qg2 d5 Be4 Qh3 Bd4 Ka5 b1B Qh1 Rg8 h8B Bf3 Qh3 e4 Ne5+ Kb3 Qg4 Rb8 a8Q Ba7 Qg7 Rb6 Qe8 Bbd3 Qeg6 Bdb5 Qg5 Ba4 Qg4 Bc4 Q4g5 Rb5+ Ka6 Ra5+ Kb7 Ba6+ Ka8 Rb5 Qf7 Rg7 Qg8 Ra5 Qg6 Rb7 Q8g7 Kc2 Qg8 Rb1 Q6g7 Kb3 Qc7 Nc2 Nc3 B4b5 Qcg7 Raa1 Na2 Ba4 Nc3 Bd4 Na2 Na3 Kb8 Ba7+
5k2/p4nN1/b1p3Qq/1NbN3R/2PrnrR1/nQ2b2p/2r1RnPp/4K3 w - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 d5 b3 dxe4 a5 e3 a6 f5 Ke2 bxa6 Bb2 a5 Nc3 a4 Nb1 Bd7 Kd3 a3 Kc4 axb2 Kc3 Bc8 Bd3 e2 Be4 fxe4 f4 e1B f5 e5 f6 h5 b4 c6 b5 e3 b6 e4 b7 e2 Ra2 e3 Na3 b1N+ Kb2 Qd6 Kc1 Nh6 c4 Nd7 b8N Ba6 d4 Bf2 d5 e1R Nf3 e2 Nb5 Na3 Kd2 Nc5 Nd7 Rd8 Qb3 Rc1 Ng5 e1N Ne6 Ned3 Nb6 Be3+ Ke2 Nf2 f7+ Ke7 Ng7 Rc3 Rd2 Rc2 Ke1 Rd7 Re2 Rg8 Ne8 Rg4 Ng7 Rd8 Rh3 Re4 Rg3 Rf4 Rg6 Qe6 Rg4 Nce4 d6+ Kf6 d7 Bfc5 Rg6+ Ke7 Rg4 Ng3 f8R Qd6 Rf6 Nf7 Qc3 Kf8 Rf5 Qh6 Rd5 h3 Re5 h4 Qb3 h2 Rh5 Re8 d8Q h3 Qg5 Ree4 Qg6 Rd4 Nd5 Nge4
2Q5/4PB1r/1b1N2P1/1pN3pk/bnqnbbbp/5BB1/2p3K1/r1QN3q w - - 0 1 legal: proof: c4 e5 b4 d5 f4 dxc4 h4 exf4 a3 g5 h5 a5 Qb3 axb4 Qa4+ Qd7 Qd1 Qd8 g4 h6 a4 Qf6 Rh4 Qd8 Ra3 Ne7 Rg3 gxh4 g5 Ng8 g6 Bh3 Rg2 Bc8 Rg5 hxg5 Kf2 f5 d4 c5 e4 c3 a5 c4 h6 b3 a6 b2 a7 c2 e5 c3 d5 f3 e6 f4 h7 Nh6 d6 Nf5 Ba6 Qa5 Qd2 Nd4 Bc4 Nbc6 Ne2 Nb4 Kg1 f2+ Kh2 f1Q Qd3 f3 Ng1 f2 Nd2 b1B Ne2 b5 Ba3 c1B Ne4 Bc2 Qd1 Ba4 Nc5 c2 d7+ Ke7 d8N Kf6 Qe1 Kg7 Ndb7 Kh6 Nc3 Kh5 Nd1 Qd3 Qh1 f1B Nd6 Bg2 e7 Be4 Qg1 Bg4 Bf7 Qc4 Qh1 Bf4+ Kg1 Nf3+ Kg2 Bg7 Qe1 Bge5 Qe3 Ba1 Qc1 Bd4 Bb2 Bg1 Bc3 Bge3 Be1 Bg1 Bg3 Bf2 Ncb7 Bb6 Nc5 Nd4+ Kh2 Rag8 a8B Rg7 Bc6 Ra8 h8Q+ Rh7 Qe8 Nd3 Qc8 Qe1 Bcd5 Nb4 Bb7 Bb3 Bbd5 Ra1 Bc6 Ba4 Ba8 Bef5 Bf3 Be4 Kg2 Qh1+
1k3Bq1/3r1PB1/1n4R1/1K2pbQp/1Q3b2/4P1Bq/nQp3rp/qq1R2b1 w - - 0 1 legal: proof: b4 c5 h4 b5 a4 bxa4 c4 f5 h5 f4 e3 f3 Ne2 g6 Nbc3 gxh5 b5 d6 Nd5 h4 Nb4 cxb4 c5 d5 Nf4 Qa5 Bc4 dxc4 Kf1 Qb6 Kg1 Qd8 Ne2 fxe2 f4 Kd7 Kf2 Kc7 g4 e1B+ Ke2 a5 d4 h5 f5 b3 c6 a3 f6 a2 d5 c3 Kd3 c2 Kc4 b2 g5 b1Q g6 h3 f7 h2 g7 a4 Qg4 a3 Qg5 Na6 d6+ Kb8 b6 Nf6 g8Q Ra7 d7 Bh6 b7 Nd5 Qf8 Bf2 Rd1 Rg8 Bb2 Bg1 Bg7 Nab4 Kb5 Nb6 Rd6 Qe8 d8B Bf5 Rg6 e6 Be7 Qf1+ Kc5 Qh3 Rd1 a1Q Kb5 a2 Bc5 Qb1 Be7 Kc7 b8B+ Kc8 Bc5 a1Q Bg3 Rd7 c7 e5 Bd6 Kb7 c8Q+ Ka7 Qc5 Na2+ Qb4 Qd8 Be7 Kb8 Qb2 Qc8 Qf6 Bf4 Qg5 Rd2 Ba3 Rg2 Qfb4 Rd8 Qe4 Rdd2 Baf8 Rd7 Qeb4 Qe8 Be7 Qh8 Bef8 Qg8
2Q2B2/3r1B1r/3P1NQ1/p6p/2rq1pQn/1Pr2Nbb/k1pb2b1/n2B2K1 w - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 dxc4 f5 g6 f6 exf6 h5 f5 Qc2 f4 Qb3 Be6 Qd1 Bc8 g4 Nh6 g5 Ng8 h6 Bd7 Rh5 Bc8 Ra3 Bh3 Rg3 gxh5 g6 Bf5 g7 Bc8 Rg6 hxg6 Kf2 Ke7 d4 Kd6 e4 a5 h7 f5 e5+ Kd5 e6 c5 e7 f3 e8Q f4 Qee1 a3 Qed2 c3 Bg2 Kc4 d5 c2 Q1e1 Kb3 Qdd1 a2 Qee2 a1R Qe4 g5 Qe8 c4 Qf7 g4 Qd2 g3+ Kf1 c3 Qe8 f2 Qe4 Nd7 Bh3 g2+ Ke2 f1B+ Kf2 Nh6 g8B Nf5 Ne2 g1B+ Kf3 Nc5 Qd1 Ra4 Nd2+ Ka2 Bf7 Nb3 Bg4 Bh2 Kf2 Rc4 Nf3 Bg3+ Kg1 Na1 b3 Bb4 Ba3 c1R Qed3 Nh4 Qg6 Rg8 h8Q Rg7 Qe8 Bg2 Qec6 c2 Qc5 Bd7 Qc8 Bd2 Bf8 Rh7 Nc3+ Kb2 Qcc6 Rc8 Ne4 Ka2 Nf6 Rc3 Qa6 R8c4 Qc8 Rb1 Qf1 Re1 d6 Re7 Qe2 Qb6+ Nd4 Qc5 Qe6 Qd5 Bd1 Qe5 Nf3 Qd4+ Qe3 Bdh3 Qcg4 Qd5 Qc5 Rd7 Qc8 Qd4+
1b6/2N1B3/2BQ2P1/1pqp2Qp/Q3p2N/2Bk1pb1/brr2Pn1/q1K3bn w - - 0 1 illegal: No possible last move
3B1RQq/1qQ2b1b/r2Nr2k/nP2pbr1/5K2/P1r1Q1rr/4Q3/2R3b1 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 a5 h4 axb4 Qa4 g5 Qd1 gxh4 e3 b5 Qg4 d5 Qf3 b3 Nc3 b4 Qd1 Nc6 Nb1 Na7 Be2 Nb5 cxb5 Bh6 Bf1 Bf8 Bc4 dxc4 Kf2 c5 Kf3 h5 g4 c3 d4 h3 d5 h4 a3 c4 g5 h2 g6 c2 e4 c3 e5 h3 g7 b2 d6 f6 d7+ Kf7 e6+ Kg6 e7 b3 e8Q+ Kh6 Qe4 Ra6 Qed5 Ne7 g8Q Nc6 Q1d3 Na5 Q5e4 Bc5 Ne2 Bg1 Qgc4 Rg8 Qf5 Rg5 Qcd4 Qh8 d8Q Be6 Q8d7 Bf7 Nd2 b1B Nf1 b2 Bd2 c1R Qa4 c2 Qfd5 Re1 Qab3 c1R Neg3 Ree6 Ne4 Rc3 Ne3 Bc2 Re1 b1B Qe2 Bd3 Nd6 Bh7 Qc7 Bbd3 Nec4 Bdf5+ Qe3 Rg3+ Ke2 Rg5 Qde5 Rg3 Q5e4 Rg5 Rc1 f3+ Ke1 f2+ Ke2 f1R Ne5 Re1+ Kf3 Re2 Q4d3 Rg2 Kf4 R2g3 Qee2 Bc5 Rhd1 h1Q Qde3 h2 Qd5 Bd4 Qa8 Qb7 Qg8 h1R Re1 Rc2 Bc3 Bb6 Bd4 Ba7 Bb6 Rc3 Rg1 Rg6 Qcb8 Qd5 Q3f3 Rh5 Qge8 Qb7 Bd8 Rgh3 Qc7 Bf2 Qfe3 Rg8 Rg3 Bg1 Rg4 Rg3 Rg7 Rhh3 Qf8 Be8 Rf7+ R8g7 Qg8 R7g5 Rf8 Beg6 Q2d3 Bf7 Qde2 fxe5+
br1b1r1r/1QbRRP2/1q6/Kb3p2/R1bR1p2/q3Qpk1/3P2nN/6B1 w - - 0 1 illegal: No possible last move, all moves rejected
5bR1/p5Q1/2b1K1rp/Qp5n/rQ1rp1b1/PB1kn2N/R4P2/Qq3b2 w - - 0 1 illegal: No possible last move
2r2n2/QPk2K2/b4nQr/r3N3/P2Q1q1r/1R2b2r/q2nNQ1b/4Bbb1 w - - 0 1 legal: proof: f4 e5 c4 exf4 d4 h5 a4 c6 g4 hxg4 b4 a5 b5 Qf6 c5 Qd8 Ra3 Nh6 Rb3 Ng8 Rb4 axb4 d5 cxd5 c6 d4 c7 Bc5 Bg2 Bf8 Bc6 bxc6 Kf2 f5 h4 d5 e4 Kd7 e5 g5 h5 g3+ Kf3 g2 h6 d3 h7 d2 b6 b3 Ba3 b2 Ne2 g1B Rh3 d4 Bc5 g4+ Kg2 g3 Kf3 g2 Qb3 d1R Rg3 d3 Be7 d2 Rg4 c5 Nc1 c4 Nc3 b1N Rg3 Be3 Qa3 g1B Nb3 Ba6 b7 Nf6 Bb4 Bd6 Qb2 Qg8 Nd5 c3 Na1 c2 Rh3 c1R Nc3 Qa2 e6+ Kc6 e7 Nbd7 Nc2 Nf8 c8Q+ Kb6 Qe8 Kc7 Qh5 Re1 e8Q d1R Rg3 Rd3 Na3 Rc8 Ne2 Rc5 Qe4 Ra5 Qg6 Rc1 Qee5 Rc6 Nc4 Rd4 Qc5 Nd2+ Kg2 f3+ Kh3 f4 Kh4 f2 Kg5 f1Q Ne5 Qf2 Qa7 f3+ Kf5 Rh4 Bc3 Nf1 Be1 Nd2 Rh3 Qh2 Rg3 f2 Rf3 Bf4 Rb3 f1B Qbd4 Bfe3 Qf4 N8d7 Ke6 Nf8+ Kf7 Rh3 Qfg3 Rc4 Qf2 Rch4 Qg8 Qf4 Qg6 Rg8 h8Q Rh6 Qe4 Rg4 Qed4 Rgh4 Qg7 Qg4 Qg6 Qe4 Nc4 Bdh2 Ne5 Qf4
r3n1n1/Qq1bQ3/1qB1rq2/1QRn1P2/4N3/K7/PNbrb3/1kb1nnQ1 w - - 0 1 legal: proof: d4 a5 g4 g5 b4 axb4 e4 f5 f4 fxe4 f5 c5 Bf4 cxd4 Nd2 gxf4 g5 h6 g6 Ra7 Rb1 Ra6 Rb3 Ra8 Rg3 b3 Rg5 hxg5 h4 d5 c4 Kd7 c5 Kc6 g7 e5 h5 b5 h6 b2 h7 b1N Nc4 f3 Na3 d3 Bg2 e3 Rh2 d4 Rh4 Kd5 c6 d2+ Kf1 e4 c7 b4 Nb5 Kc4 Bh3 Kd3 Qc1 d1B Ke1 e2 Nc3 g4 Qh6 Kc2 Qb6 d3 Na4 b3 Qa7 d2+ Kf2 e1R Ne2 b2 Ke3 g3 Qd4 g2 Nc5 g1Q+ Kf4 e3 Ke5 f2 Bg2 f1N Ke4 Nh6 g8Q Nc3+ Ke5 b1Q Rg4 Bd7 Ng3 e2 Na4 Ba3 c8Q Qb7 Qc6 Na6 Qa7 Bc1 Kd6 Nc7 Nb2 Qgb6 Rc4 Kb1 Qg5 Qf8+ Qe7 Bc2 Bf3 d1B Be4 Q6a6 Kc5 Qf6 Qb5 Qab6+ Kb4 Ne8 Bc6 Nd5+ Ka3 Rg8 Rc5 Rg7 Qe4 Ng8 Qd4 Re7 Qg1 Re6 Ne4 Bd3 Qe3 B1c2 Qg5 Rd1 Qg1 e1N h8Q Qg5 Qf6 Rd2 Qf7 Be2 Qe7 Qf6
2R2nQ1/1PNP2n1/4rnrq/Bp1R1Q1R/knrb4/1nRb2q1/1q6/3b3K w - - 0 1 legal: proof: c4 g5 f4 e5 b4 exf4 h4 gxh4 e3 d5 b5 dxc4 b6 a6 a4 Bg7 a5 Bd4 Be2 Be5 Bf3 Bd6 Bg4 Bf8 Bd7+ Ke7 Bb5 axb5 Nh3 Kd7 Ng1 Ke8 a6 Be7 a7 Bg5 Nc3 Be7 Nd5 Bd6 Nb4 Bf8 Na6 bxa6 Kf2 Kd7 d4 Kc6 g4 f5 Kg2 h5 d5+ Kc5 e4 Kb4 b7 c5 e5 a5 d6 f3+ Kh2 a4 g5 f2 e6 f1R g6 f4 g7 h3 e7 h4 e8R a3 Nf3 c3 Qd4+ c4 Qc5+ Ka4 Qc7 a2 Bd2 c2 Rg1 c1Q Rh1 c3 Ng5 c2 Nf7 f3 Nh6 f2 Qc6 Re1 Re2 f1B Bg5 Bg4 Qc8 Nf6 g8R Qb2 Qc6 c1N Qc3 Nbd7 Rg7 Rc8 Qc7 Nd3 Be3 Rg8 Bd4 Nb4 Qb8 Qc7 Re7 Rg6 Nf5 Bg7 Bc3 Nf8 Rd2 Re6 Re8 Bd1 Rc1 a1N Ne7 Nb3 Nd5 Bd3 Qa8 Qb8 Nc7 Bh8 d7 Bg7 Re1 Bh8 Kh1 h2 Re5 Bg7 Na6 Rc4 Rh5 Qg3 Nc7 Ne4 Qb8 Bb1 a8Q+ Na6 Qaa7 Nh7 Rdd5 Bd3 Ba5 Nb4 Qf2 Bd4 Rh6 Nef6 Rc3 Ra6 Re7 Re6 Qg8 Nf8 Re8 Qg4 Rg5 Qf4 Kg2 h1N Rc1 h3+ Kg1 Ng3 Rc3 Nf5 Rc8 h2+ Kg2 Ng7 Rh4 Bg4 Rd5 Qh6 Rhh5 h1Q+ Kg3 Qha1 Kg2 Qe1 Kh2 Qe5+ Kh1 Qg3 Qf5 Bd1
2nQbbN1/3RbNqP/1Q1n3q/3B3N/2qpb1qk/1Pb3N1/4rr1n/1K6 w - - 0 1 legal: proof: g4 c5 a4 e5 d4 cxd4 f4 exf4 g5 b5 Kf2 bxa4 Ra3 h6 Rc3 f3 Rc5 g6 Rf5 gxf5 g6 Qc7 Be3 Qd8 Bg5 hxg5 Ke1 f4 Kd2 Ke7 Kc1 Kf6 e4 a5 c4 d5 h4 f2 b3 a3 g7 a4 h5 a2 c5 a1Q h6 d3 h7 g4 c6 Kg5 e5 f5 c7 d2+ Kc2 f3 e6 f4 e7 g3 e8N g2 Bc4 f1B Ba6 f2 Qe2 f3 Rh2 a3 Qb5 a2 Rh6 Bd7 c8Q Bd3+ Kd1 f1N Re6 f2 Re5+ Kh4 Qbb7 Nc6 Bb5 Nf6 g8N Na7 Re3 Qb6 Ba6 Nh2 Ne2 g1B Re5 Be4 Qc2 Nc8 Ng7 Be8 Qd3 f1Q+ Kc2 Bgc5 Nh5 Bce7 Nhf4 Qe3 Nh5 Qh6 Rg5 Qe5 Neg3 a1B Qc6 Bc3 Na3 Qff4 Kb1 d1Q+ Ka2 Qfc1 Bb7 Qg4 Rg7 Ra6 Qc5 Re6 Qb6 Qf1 Qd2 Qc4 Nb5 d4 Bd5 Qeg5 Nd6 Qgg6 Rf7 Qgg7 Qc2 Re5 Kb1 Rf5 Qd8 Rf2 Qd3 Nd7 Qc2 Nc5 Qd3 Nb7 Qc2 Bg5 Rd7 Bge7 Nf7 Nbd6 Ngf6 Rg8 Qb6 Qh8 Qd8 Rg5 Ng8 Re5 Qd3 Q8g7 Qc2 Bg2 Qg6 Ree2 Qe6 Nb7 Qc6 Nbd6 Qcb6 Be4+
bRn2q1r/4kq1q/3n4/1R5P/Pr1R2qb/2pRNQrr/n3QB2/b5K1 w - - 0 1 illegal: No possible last move
3qRBKr/1q5P/3Qpb2/1r3N1n/3rbP2/2NnQrbk/2n1Q1qq/1Q6 w - - 0 1 illegal: No possible last move
1N3bQ1/3B1P1b/1R2qNnQ/1bb2Nrq/1P5q/N1nrn3/p3nk1r/K7 w - - 0 1 legal: proof: f4 b5 d4 g5 a4 bxa4 g4 c5 b4 cxd4 e4 f5 Bd2 fxe4 f5 h6 Bf4 Qa5 Ra3 Qc7 Rg3 gxf4 g5 Qb6 g6 Qd8 Rg5 hxg5 Kd2 e5 Kc1 Ke7 Kb2 Kd6 c4 a5 h4 g4 h5 a3+ Ka1 e3 f6 e2 h6 e1Q c5+ Kd5 f7 Ke4 c6 Ke3 g7 d5 c7 a4 h7 a2 Qb3+ d3 Rh4 f3 Qd1 g3 Rh5 e4 Rg5 f2 Nd2 g2 Rg4 d4 Ndf3 d2 Bc4 f1B Nh3 g1R Rg2 d3 Ne5 Qeh4 Qh5 d1N Rg4 d2 Nc6 Bf5 c8N Qa5 Qg6 Nc3 Ba6 d1N Rf4 Rg5 N6a7 Ne7 g8N Bb5 Nh6 Nbc6 Ng8 Nd4 Nf2 Nde2 Qg7 Ng6 Nce7 Rd8 Nh6 Rd3 Nec6 Bc5 Rg4 Kf3 Rg1 e3 Nfg4 Bf8 Nf6 Kf2 Bb7 Rh5 Nc8 Ne7 Rg5 Qg3 Qg6 Ba6 Ne8 Nf4 Nd4 e2 Qf6 e1Q Nb5 Qe6 Nca7 Ne3 Bd5 Nfe2 Nc6 Qg2 Na3 Qh1+ Nb1 Qhe4 Nd8 Rg8 h8Q Rh2 Bc6 Qh4 Na3 Bc4 Qfg7 Bh7 Qg6 Rg7 Re5 Ba6 Rb5 Rg8 Rb6 Rg7 Ng8 Qah5 Qh6 Bb5 Nb1 Rg5 Ngf6 Ng6 Bd7 Re5 Nd6 Rg5 Qg8 Qeh3 Nc6 Qe6 Kb2 a1B+ Ka3 Ncd5+ Ka2 a3 Nf5 Bd4 Nb8 Bdc5 Ka1 a2 Na3 Ndc3
q2R4/1brrkpn1/Q2Rq1b1/Q1q5/1Q4r1/b4Bq1/1PN3Pn/K2Qn1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 exf6 Be3 f5 Bc1 f4 c4 d6 Be3 Bb7 d5 Ba6 Bd4 Bc8 Nd2 Nh6 Nb3 cxd4 c5 Ng8 c6 Nd7 Nc5 dxc5 Qd2 Nb8 Qd3 Nh6 Qd1 Ng8 Kd2 a5 Kc1 h5 Kb1 c4 e4 d3 c7 d2 e5 c3 e6 f3 e7 c2+ Ka2 c1B d6 h3 Bd3 a3 Rb1 h4 Ne2 f2 Ba6 f1N Ng3 h2 Bc4 a4 Bb5+ Nd7 Nh5 h3 Ka1 Nh6 Qg4 d1B Be2 Ne5 Qf3 Rg8 Qf5 Bc2 Bf3 Nd3 Qa5 Rg4 Qc3 Ne1 Be2 Ra7 Qb3 Bb7 c8Q Nf5 Bd3 Be3 Qc7 Bg1 Ng3 Ng7 Qa2 Qd7 Be2 Qe6 Qb3 Bg6 Qcc2 Kd7 Rd1 Ke8 Kb1 a2+ Kc1 a3 Nf5 a1R+ Qb1 a2 Qb4 Kd7 Ne3 Ke8 Nc2 Kd7 Rd2 Ke8 Kd1 Kd7 Qc1 Rb1 Rd3 a1Q Bf3 Qa5 Rd2 Qc5 Rd5 Rba1 Qb1 R1a6 Kc1 Rc6 Qa1 Rc7 Kb1 Bd4 Rg1 h1Q Qaa5 Qh2 Ka1 Qg3 Qa6 h2 Qaa5 Kc6 d7 h1Q e8Q Qh8 Qc8 Nh2 d8Q Be3 Rf1 Bg1 Rf2 Bd6 Rfd2 Bf8 Qf6 Bd6 Qfd4 Qhe8 Qa8 Kd7 Qd3 Qc8 Qe2 Qd8 Qd1 Ke7 Qc8 Rd7 Qc6 Qa8 Qca6 Be5 Rd6 Bc3 Qbb5 Bb4 Qba4 Ba3 Q4b4 Rc7 Rd8 Rd7 Rd3 Bbe4 Rd4 Rac7 Rd6 Bb7
2R5/1QPrK1n1/4nQr1/3QqpN1/1BP1bQ2/1rrN1n2/2q2b1q/2b3bk w - - 0 1 illegal: Other
n3n3/bpBP1kbb/1N2n2q/1nB1K1BR/3r3Q/1n5b/qQr1P1Bn/8 w - - 0 1 legal: proof: g4 d5 c4 dxc4 b4 f5 d4 h5 a4 a5 d5 axb4 Na3 e5 Nb5 h4 Nd4 fxg4 Ra3 exd4 Rg3 hxg3 Kd2 g5 f4 c5 h4 c3+ Kd3 g2 Ke4 b3 h5 d3 a5 c4 f5 b2 d6 b1B a6 c2 a7 d2 f6 g3 h6 g4 h7 c3 Rh3 Kf7 Kf4 Na6 Qe1 d1N Rh5 Nc7 Bb2 c1N Nf3 g1N Rh4 c2 Qb4 g2 Bc3 g3 Ke4 Bh3 d7 Nb3 Ke5 c1Q Nd4 Bg7 Bb2 Qh6 Bc1 Rc8 a8Q Nc3 Qba3 N3b5 Q8a5 Na8 Nf3 Rc2 Qd2 Qa5 Qd4 Qa7 Qab2 Qa2 Nd2 Nf3+ Ke4 g1N Rh5 g2 Nc4 Ng5+ Ke5 Ne6 Qh4 Na1 Bg5 Nb3 Nb6 Nf3+ Ke4 g1B Bg2 Nh2 Kd5 Kf8 f7 Nf6+ Ke5 Ke7 f8B+ Kf7 Be7 Rhc8 h8B R8c4 Bd8 Bc5 Bc7 Rd4 Nc4 Ba7 Nb6 Bf8 Bg7 Ne8 B7f6 Bg7 Be3 Rcd2 Bf2 Bh7 Bg1 Bf8 Bg5 Rc2 B1e3 Rdd2 Bc5 Rd4 Bgd8 Bg7+ Bf6 Bf8 Bg5 Bg7+
3n2Qr/rr3q2/k2N1bb1/1n2Q1r1/1QRq4/2BpQPp1/n2Pr1N1/b4K2 w - - 0 1 legal: proof: b4 a5 e4 axb4 a4 g5 f3 f5 c3 bxc3 Kf2 fxe4 Ke1 g4 Ra2 g3 Ra1 Ra5 Be2 Bh6 Qc2 Bg5 Bb2 Rb5 Na3 Rb3 Kd1 Nf6 Rc1 Nd5 Nb1 Bh6 Bd3 Rb4 Ke2 Bg7 Rf1 Bf8 Qd1 Rb5 Bc1 Ra5 Ke1 Ra8 Rf2 Nf6 Bf1 Ng8 Ke2 gxf2 g4 h5 g5 Ra6 Bh3 Ra8 Bg4 hxg4 h4 f1R a5 b5 h5 c5 a6 e5 h6 d5 g6 Kd7 g7 Kc6 h7 Kb6 a7 c2 Nh3 b4 Bb2 c1B Ng5 d4 Nh3 d3+ Ke3 b3 Nc3 c4 Ng5 Be7 Rg1 Ka6 Na2 c3 Nf7 c2 Nh6 Bf5 Rg3 Bg6 Rg1 Bf6 Nf5 Nc6 Ba1 b2 Qe1 b1R Rg3 Nh6 g8Q Bb2 Qe2 c1N Rg2 Nf7 Qe8 Nd6 Qe7 Nb5 Qd6 Rg1 Kf2 e3+ Kg3 e4 Nc3 Na2 Qb4 Qd4 Nd5 Nd8 Nf4 Bc3 Qf2 e2 Qe3 e1R Kf2 Rb3 Rh2 Rg3 Rh4 Re2+ Kf1 Bb2 Qg1 e3 Nd6 Bc3 Bb2 Rgg2 Ba3 Ba1 Bb2 g3 Bc3 Rh2 Rg4 Rh5 Ng2 Rg5 Re4 Rb8 Rf4 Rb7 a8Q+ Ra7 Qe4 Rb2 Qe5 Qc5 Nf7 Qc7 Qh2 Na3 Qh3 Rg8 Qbc5 Rbb7 h8Q Nb5 Q3h4 Rf2+ Kg1 e2 Nd6 Qf7 Qg7 Rh8 Qg8 Rf5 Qb4 Rfh5 Rc4 Rg5 Ne3 Rh2 Qhd4 e1Q+ Nf1 Qe4 Ne3 Bf5 Kf1 Re2 Ng2 Bg6 Qe3 Qd4
Q6n/3bN1N1/5b1q/N1r3N1/b1nP1bKb/1r2bBR1/ppP2qQ1/1k4r1 w - - 0 1 legal: proof: b4 b5 a4 bxa4 e4 c5 f4 e5 g4 h5 b5 hxg4 Ba3 d6 Bb4 cxb4 Ra3 Rh4 Re3 exf4 e5 Rh7 e6 Rh8 Re5 dxe5 Ke2 Ke7 h4 Kd6 e7 Kc5 e8N Kc4 b6 a5 h5 f5 h6 g5 b7 g3 h7 g2 Nc7 a3 Rh5 e4 Nh3 g1R Rh4 a2 Nf2 a1B Nc3 a4 Rh2 b3 Nb1 e3 Kf3+ e2 Na6 a3 Nh1 g4+ Kf2 g3+ Kf3 g2 Nc7 a2 Nd5 Bh6 Ne7 Qd6 Nf2 Nc6 b8Q Ra3 Rh1 Bd7 Ne4 Bf6 d4 Ne5+ Kf2 f3 Kg3 f2 Qc1 f4+ Kh2 f3 Qb2 Bf4+ Ng3 Nh6 Nc8 Nhf7 Na7 Rc8 h8N Rc5 Ng6 Nh8 Qa8 Kb4 Qc1 e1B Ne7 Nc4 Nd2 Kc3 Be2 f1B Nac6 f2 Nf3 b2 Bd1 Rb3 Na5 Bd3 Ng5 f1Q Bf3 Qf2 Qa1 Kd2 Qb1 Ba4 Kh3 Bf5+ Kh4 Qa6 Rh3 Bfd7 Kh5 Qb6 Ngf5 Qd6 Ng6 Qf8 Kg4 Qh6 Qa1 Qe3 Ne7 Bh4 Qf1 Qf2 Qe2+ Kc1 Rg3 Kb1 Qee4 Rc1 Qe2 g1B Qf1 Qg2 Qe2 Bge3 Qf1 Qf2 Qg2 Bdc6 Ng7 Rg1 Qa7 Be8 Qa8 Bed7+
nQ2bK2/BB2Q3/7B/2n2nb1/2rPr1p1/bkBrp2R/1P3rN1/b1b3q1 w - - 0 1 legal: proof: c4 b5 f4 h5 e4 f5 a4 bxa4 g4 d5 Ra3 dxc4 Rb3 Na6 Rg3 Nb8 Nc3 g6 Nce2 fxe4 f5 g5 Nf4 gxf4 g5 Qd7 Rg2 Qd8 Rg4 hxg4 Ke2 Kf7 h4 c5 h5 e5 d3 a5 h6 e3 f6 Ke6 h7 Kd5 g6 c3 f7 f3+ Ke1 e4 g7 a3 Nh3 c4 Nf2 a4 Qe2 a2 Qc2 a1N Bd2 e2 Bh3 a3 Qa4 c2 Bf1 c1B Nd1 a2 Kf2 e1R Kg3 f2 Kf4 c3 Qe8 c2 Rh6 Bd7 Bh3 f1R+ Nf2 Ra3 Rf6 Nh6 Kg5 Nf5 Kg6 Nb3 g8Q a1B Qe7 Nc5 Bc3 Bg5 Bg2 c1B Nd1 Be8 d4 Kc4 Ne3+ Kb3 Bh1 Rf3 Ng2 Qd5 Ra6 Nbd7 Rb6+ Kc2 Rb3 Ra4 Ra3 Nb6 Rb3 Rc4 Ra3 Bg7 Qgf8 Rg8 h8B Rd3 Rb3 B7h6+ Bg7 Na8 Kh7 Qd6 Be5 Qf6 Bb8 Re2 Ba7 Rf2 Ra3 Rg6 Qg8 Bf8 Qh8 Rh6+ Kg8 Qc6 Qhe5 Re6 Qb8 Qd6 Rb3 Qh2 Ra3 Qg1 Rb3 Bg7 f8B Be5 Bh6 Bd6 Kf8 e3 Rb6 Re4 Rc6 Nb3 Rb6 Ba3 Rf6 Ng7 Rf3 Nf5 Rh3 Nc5 Nf4 Re5 Bb7 Re4 Ng2 Kb3
r3kb2/p2n3p/2R3R1/4b1bq/b1KRPnb1/2Q1P3/2QN1r1B/n1R3rr w - - 0 1 illegal: Other
b5q1/q4rq1/1KRbb2B/3b3p/3P2k1/rQ1b2q1/pPn2nNQ/QB5Q w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 h5 bxa4 h6 c5 Rh3 gxh6 Rh2 h5 Rh1 h4 d4 c4 Ra3 Be7 Rc3 Bf8 Rd3 cxd3 c4 d5 c5 Qc7 Nd2 Qd8 Nc4 dxc4 Kd2 Kd7 Kc3 Ke6 Kb4 Kf5 Kb5 h5 e3 a5 c6 a3 c7 a4 g3 h3 Qe1 d2 e4+ Kg4 e5 d1Q e6 f5 e7 h2 e8Q f3 Be2 c3 Qf7 a2 Bd3 a1Q Ne2 c2 Qg1 f4 Qf1 a3 Nc3 f2 Qg1 f1B Qc4 f3 Be3 c1Q Ne4 f2 Nd2 Nf6 Nb3 Nc6 Qg2 Nb4 Nd2 Bd6 Bb1 Qf3 Bh6 Ne4 Qe2 Be6 c8Q Qcc7 Qa6 Qg7 Nc4 Qdg8 Kb6 Rh7 Qc2 Bd3 Rc1 f1B Qh1 Bg2 Ne3+ Kh3 g4 Qg3 g5 Nf2 g6 Bgd5 Qd2 Nc2 Ng2 Kg4 Qa4 a2 Qb3 Ra3 Qde1 Qd7 Qef1 Rf7 g7 Ne3 Rc6 Nc2 Qhg1 h1B Qh2 Qf8 g8Q+ Qg7 Nh4 Bhf3 Ng2 Bfe4 Qfh1 Bf3 Rc3 Ba8 Rc6 Bfd5 Qc8 Qe7 Qa6 Qd7 Qac4 Qa7+ Kb5 Q7e5 Ne1 Ne3 Bc2 Qh3 Ng2 Qg1 Nf4 Qgg2 Qa1 Kf5 Bb1 Qg8 Ng2 Qeg7 Qd1 Nc2 Qdh1 Be2 Qd3+ Kg4 Qc4 Qg3 Qd3 Qd7 Kb6 Bf1 Qb5 Bd3 Qb3 Qa7#
1r1Q2N1/1K6/1n1bqP2/1Qqprb2/2B1n2Q/pP6/1Q3rkN/Rqq2r1q w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 f5 e5 Qe2 e4 Qd2 Bg7 Qd1 Bf8 g4 h6 Bf4 Bb7 Ra3 Ba6 Rg3 gxf4 g5 Bb7 g6 Bc8 Rg5 hxg5 Kd2 a5 c4 e5 h4 Ke7 h5 Kd6 c5+ Kd5 c6 f3 h6 d3 Kc3 g4 b3 e3 h7 Ke4 Kc4 d5+ Kb5 e2 c7 e1Q Kb6 a3 g7 a2 Ne2 a1Q Rh5 a4 Rh6 g3 Rg6 a3 Rf6 f2 Nc1 d2 Be2 f1R Nd3 g2 Qc1 g1Q+ Qc5 d1Q Rc6 Qf6 Qf2 Qe6 Nb4 Bd6 Rc1 Nf6 Nc6 Rf8 Ne7 Nbd7+ Kc6 Qb4 g8Q Nb6 h8Q Qh1 Bc4 Rb8 Qb2 Kf3 Qh4 e4 Qg6 e3 Qe8 e2 Ng8 e1R Nd2+ Kg2 Nf3+ Re2 Nh2 Ne4 f6 Ref2 Qd8 Re8 Qd7 Qa2 Ra1 Qab1 Qd8 Qdc1 Qd7 Ba6 c8Q Qa5 Qcd8 Bc8 Qb7 Qac3 Kb5 Qb4+ Ka6 Qc5 Ka7 Qe5 Qc6 Bf5 Qb5 Qe6 Ka6 Qec8+ Ka7 Q8c6 Ka6 Re5 Ka7 Qd7+ Ka6 Qe6 Ka7 Rc8 Kb7 Rb8+
bn1r1K1b/RnR1Rp2/1qb4Q/q2Pp3/1k1r1B1n/8/2b1PQ2/b2nNR2 w - - 0 1 legal: proof: b4 d5 g4 g5 c4 dxc4 f4 gxf4 a3 a5 d3 axb4 g5 h5 Bh3 b3 Bg4 hxg4 Nc3 Rh4 Kf1 Rh8 Na2 bxa2 Ke1 c3 Kf2 Kd7 h4 Kc6 d4 Kb5 h5 c5 g6 e5 h6 f3 Kg3 c4 a4+ Kb4 a5 b5 h7 c2 g7 c3 a6 f2 a7 f1B Bg5 c1N Kh4 c2 Kh5 g3 Be3 g2 Nh3 g1Q Nf4 Bg2 Rh3 Bcb7 Rh1 Nb3 Rb1 a1B Ne6 c1N Qc2 Bbc6 Qb2 Qa5 Nc5 Na2 Rc1 Ne7 Kh6 Nc3 Bf4 Nd1 Qb1 Ng6 Qf5 Qe3 Rf1 Nh4 Qf6 Be7 g8R Bgd5 Qf5 Bf6 Re8 Rf8 Rc2 Bh8 Re7 Rd8 Rc1 Nd2 Rc3 Nc4 Rc2 Nd6 Nd3+ Ka3 Rc5 b4 Ne1 b3 Rc4 b2 Rc2 Bb5 Rcc7 b1B Qf6 Bb7 d5 Qeb6 Qf5 Kb4 Qf6 Ng6 Qh4 Bc2 Qf2 Bf6 h8Q Nh4 Qh7 Bh8 Qg6 Be8 Kh7 Bbc6 Kg8 Nb7 Qh6 Rd6 Rcd7 Rg6+ Kf8 Rg4 Rc7 Bed7 Bg3 Rd4 Bf4 Na6+ Re8 Rd8 a8R Nb8 Ra6 Nc5 Raa7 Ba8 Qf3 Bdc6 Qf2 Rd7 Re6 Nb7 Re7 Rd8+
3r1b2/Q2qNrQb/RBP1nn1p/1k5q/r2B1p1n/n2PBB2/3b3b/4K3 w - - 0 1 illegal: No proof kernel
1n2Q1nk/2KP2p1/1Q1P1b1N/2qb2bn/1rrq4/N1b2QQ1/R5p1/2B1nr2 w - - 0 1 illegal: Other
2Q1bBR1/p2nb1r1/4P1P1/5pNk/Q3q2r/1nKb1q2/1N5q/2N1bNnn w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 b4 g4 Ra3 h6 Rf3 h5 g3 Ne7 Bh3 gxf3 g4 Ng8 g5 Qb6 Bf5 Qd8 Bg4 hxg4 Kd2 d5 c4 f5 h4 Kf7 e4 Kg6 e5 f2 b5 f1Q b6 d3 c5 a3 e6 g3 b7 f3 c6 a2 c7 a1B Qb3 f2 Qb5 g2 Qa6 d4 Qa2 Nc6 b8N Kh5 g6 Na5 Qc4 Bd7 c8N Qc7 Qa6 Be8 Rh2 Nf6 Ne2 g1N Nc6 Qg2 Ne5 f1B Ba3 Nd7 Nf7 Qe4 Ng5 Be7 Nd6 Rb8 Rh1 Rb7 Nc4 Qh2 Nb2 Rh6 Qc6 Rc7 Qa4 Nb3+ Kd1 d2 Nc1 Bd3 Bb4 Kg4 h5 Rh8 h6 Kh5 Ba3 Rh7 Bd6 Rc4 Ba3 Rg7 h7 Rb4 Nc4 Bc3 Nb2 Rc4 h8Q+ Kg4 Nf3 Qb8 Qh2 Bf6 Ne1 Bf1 Ne2 Qeb7 Kc2 d1N Nd2 d3+ Kb1 Nf2 Bf8 Be7 Qc7 Rd4 Rh8 Nh1 Rg8 Kh5 Nc1 Rh4 Qc5 Qe4 Qc8 Qh2 Nef3 Be2 Nf1 Be1 Ng5 d2+ Nbd3 d1Q Kb2 Bg3 Kc3 Be1+ Nd2 Bf1 Nb2 Bc4 Qa2 Bd3 Qa4 Bf2 Nf1 Qdf3 Qb7 Bg3 Qc8 Be1+
bk6/nqb2p2/1Pb1rr2/3Pn2n/1BQ3Q1/RQnp1n2/1N1Kbn2/1Q4R1 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 h5 bxa4 h6 c5 Rh3 gxh6 Rh2 h5 Rh1 h4 e3 d5 d4 c4 Bd3 Ba3 Nd2 cxd3 c4 Bd6 c5 Bf8 Nc4 dxc4 g4 Kd7 b4 Kc7 e4 h5 g5 a5 g6 a3 b5 a2 e5 a4 c6 c3 g7 c2 e6 h3 e7 h4 e8Q h2 Bb2 c1N Ne2 h3 Rg1 h1B Nc3 a3 Qde2 f3 Rb1 a1N Q2e3 h2 Q8e6 a2 Q6e4 f2+ Kd1 f1B Qf5 Bd6 Qg6 Qe7 Qeh6 Nc2 Qgh7 a1N Kd2 Be2 Qe6 Bd7 Na4 Nab3+ Kc3 Nb4 Qeh6 Nca2+ Kc4 Nc3 Qf4 Ra6 Qg4 Nf6 g8Q Nh5 Ba3 Be8 Rbd1 Nd7 Nb2 Kb8 Ra1 Bc7 Qe6 Bhf3 Qgg4 h1N Qhf5 Be4 Qf1 Nf2 Qb1 Rh6 Qd5 Rf6 b6 Ra5 Qde6 Re5 Qd5 Ree6 Ra2 Nc2 Bb4 Ne1 Ra3 Nf3 Qb5 Nc1 Qa4 Nb5 Qb3 Na7 Kc3 Bd5 Bd6 Nde5 Bb4 Ng5 Kd2 Na2 Rg3 Nc3 Rg2 Bd8 Rg1 Qb7 c7+ Ka8 Qc4 Bec6 Qb3 Ngf3+ Kc1 Qb8 c8Q Bc7 Qa6 Qc8 Qb5 Kb8 Q5c4 Nh2 Kd2 Ba8 Ra2 Qb7 Ra3 Bc6 d5 Nhf3+
R4B2/NQr1p1Q1/3q2pn/1K1q2pk/1b1R1P1b/q3R2n/n1RPb1r1/7r w - - 0 1 illegal: No possible last move
4Q3/QP2b1p1/NB2rpq1/2N1Q1b1/6kb/Pnr5/n1R2pKQ/1b1bq2r w - - 0 1 legal: proof: g4 h5 d4 hxg4 f4 e5 b4 exf4 c4 Na6 a3 Nb8 c5 a5 b5 Nc6 Ra2 Nb8 Rb2 c6 Rb4 axb4 d5 cxd5 c6 d4 c7 Na6 Bg2 Nb8 Bc6 bxc6 Kf1 Ke7 h4 Kf6 e4 d5 b6 f3 e5+ Kf5 b7 f6 e6 d3 h5 c5 h6 d4 h7 c4 e7 c3 e8Q c2 Bh6 c1B Kf2 g3+ Kf1 d2 Qb5+ Kg4 Rh2 d3 Bg5 g2+ Kf2 b3 Qc6 b2 Bh4 Nd7 Qcc2 Ra6 Qb3 Qe7 Rh3 Re6 Qb5 Nc5 Qf1 d1R Qa6 d2 Qa7 Nb3 Nc3 b1Q Rh2 Qg6 Nh3 Bd7 Qe2 Rh1 c8Q g1B+ Kf1 d1B Nb5 Bg5 Nc7 Qb4 Bg3 Ne7 Qe5 Nc6 Nf4 Be7 Rc2 f2 Qe8 Qe1+ Kg2 Bh2 Nd3 Nb4 Na6 Na2 Bf4 Bg3 Ndc5 B3h4 Be3 Bb5 Bd4 Bd3 Be3 Rg8 h8Q Bf5 Bd2 Bd3 Ba5 Rf8 Bb6 Rg8 Q8b8 Rc8 Qe8 Bf5 Qh2 Rcc6 Qbe5 Rc8 Rc1 Bb1 Rc2 Rc7 Ne4 Rc4 Nec5 Rc3
5b2/PQqB1pr1/P2bR2n/1K1p4/2RN3k/pQQb1r2/1b1Q2r1/rn3r2 w - - 0 1 illegal: Other
Q1K2bq1/3pb1nn/2rqp2k/4p3/n1P1Q1Rq/2Qb1p1Q/P1N3rB/3N4 w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f6 b4 axb4 e4 c5 e5 cxd4 f5 fxe5 Nd2 Ra3 Rb1 Ra6 Rb3 Ra8 Rf3 h6 Rf4 gxf4 g5 h5 Bh3 Kf7 Bg4 hxg4 Bb2 Ke8 Ba3 Qa5 Bc1 Qd8 Ke2 Kf7 Kd3 Kg7 Kc4 b5+ Kd5 d3 h4 e6+ Ke4 f3 h5 g3 g6 g2 f6+ Kh6 f7 b3 g7 b4 Qe1 b2 Nc4+ d2 Ne3 d1Q Rh4 b1Q Rg4 b3 Qc3 b2 Ne2 g1B Nd4 Qh4 Bd2 Nf6+ Kd3 Bb7 Kc4 Na6 Kb5 Be4 Kb6 Rc8 g8Q Bd3 Kb7 Rc6 Be1 Nh7 Bg3 Bf2 Bh2 Nc7 Kc8 Be7 Qe8 Rg8 f8Q+ Rg7 Qd8 Ne8+ Qc7 Qg1 Nd1 Qc1 Qe1 b1N Qe4 Qa3 c4 Qgg3 Nc2 Bfc5 Qg8 Nc3 Qh8 Ra6 Qa5 Na4 Qc3 Rg6 Qf8+ Ng7 Qff5 Bb4 Qa8 Bf8 Qfe4 Bbe7 Rf4 Kg5 h6 Kh5 Rg4 Rc6+ Kb8 Qd6+ Kb7 Nf6 h7 Qg1 h8Q+ Nh7 Rf4 Rg2 Rg4 Rb6+ Kc8 Kh6 Qg8 Qe3 Qf7 Qeg5 Qff4 Ra6 Qg3 Qg6 Qh3 Qf7 Nd4 Qg8 Nc2 Rc6+
q2q2q1/p1K5/3R3P/4b3/pq2Q3/r2NpBbp/1r2b1Pk/1QnQQ1nN w - - 0 1 illegal: No proof kernel
3kbnK1/r1Rq1n2/r2Q2Rr/1r5P/3RPn2/1N3q2/2b1R3/3rrNRb w - - 0 1 legal: proof: f4 b5 d4 a5 b4 axb4 f5 c5 a3 cxd4 f6 b3 Kd2 b2 Qe1 b4 Qd1 exf6 Ke1 f5 Qd3 f4 Qd2 Ra7 Qd1 Ra8 g4 h5 Qd3 g5 Qd1 b3 Bh3 Bb4+ axb4 f3 Bf4 gxf4 g5 f2+ Kd2 Nf6 Bf5 Ng8 Bg4 hxg4 Kd3 f1B Kc4 f5 Kd5 g3 e4 g2 c4 d3 h4 f3 h5 d2 c5 f2 g6 f4 c6 f3 g7 Rh6 b5 Ra6 Qc1 d1R+ Ke5 d5 b6 d4 c7 d3 b7 d2 Ra2 Re1 Nh3 g1N Qc2 d1R Ra4 Qd7 Qd2 Ne2 Qb4 Nf4 Nd2 b1R Rg1 b2 Ng5 Bg2 Qa3 f1R Rd4 f2 Nb3 Bh1 Nf3 Ra1 Qc5 b1B Nh2 Bc2 Qd6 Ra7 Rg6 R1a6 Rg1 Rb1 Rg6 Red1 Rg1 Rfe1 Nf1 Rh8 Rg6 Nh6 Kf6 Nf7 Rg1 Rh6+ Rg6 Nc6 b8R Ncd8 Rbb4 Bb7 c8R Bc6 Rc7 Nde6 g8R+ Nf8 Kg7 Kd8 Rd2 Bb5 Re2 Rb2 Rd4 Rbb1 Nfd2 f1Q Rg1 Qf3 Nf1 Rdc1 Rh8 Rcd1 Kg8 Rba1 Rh7 R1a5 Rhg7 Bc6 R7g6 Rb5 Qa3 Qd5 Qb4 Be8 Qc5 Qd7 Qe5 Rc6 Qd6 Rca6
1Knq2NR/rp3n2/Rn1p1R2/PN2r2P/6R1/2R1B3/1r2p2r/k2b2nn w - - 0 1 legal: proof: f4 a5 b4 axb4 d4 h5 a4 c5 e4 cxd4 g3 e6 Qd3 Bc5 Qa3 bxa3 Bh3 f5 Bg4 fxe4 f5 hxg4 Nc3 Bd6 Nb1 Bf4 gxf4 Qh4+ Kd1 Qf6 Ke1 Qd8 Ke2 Kf7 h4 Kf6 c4 g5 a5 d6 c5 a2 c6 e3 Kd3 e2 Kc4 e1R Kb5 d3 c7 g3 Kb6 g4 Be3 d2 Bc5 d1N Nf3 g2 Rh2 g1N Rd2 g3 Bd4+ e5 Bf2 e4 Nh2 e3 Rd4 g2 Na3 Ne7 Nb5 Nh3 Rc1 a1R Rc3 g1N Re4 Ra2 Ng4+ Kg7 Rc6 Rb2 Nh6 Ra7 Ng8 Ng5 f6+ Kg6 f7 Kf5 f8R+ Nf7 Rec4 Be6 Rc3 Ke4 f5 Bb3 f6 Rh7 R3c4+ Kd3 Rg4 Rh5 Re8 e2 Be3 Re5 h5 Nf2 Rf8 Bd1 Re8 Nh1 Rf8 Qe8 c8R Nd7+ Kc7 Nb6 Kb8 Qd8 Re8 Rf1 Rf8 Rf2 Re8 Ng5 f7 Rh2 f8R Nf7 Bf2 Nh6 Rf6 Nf7 Bc5 Kc2 Be3+ Kb1 Rf8 Na4 Ra6 Nb6 Re8 Ka1 Rf8 Qd7 Rc3 Nec8 Ne7 Rb4 Rh8 Qd8 Ng8 Rb2
1q1B1NN1/1r1Pp1r1/Rbp2np1/7q/3N3N/1P2nK1r/R3p3/n1bN3k w - - 0 1 illegal: No possible last move
rnN1K3/1BPB2b1/4p1bP/r1nR1qq1/Bn1b2BN/3kq1r1/3B4/3q3q w - - 0 1 illegal: No proof kernel
1Br2n2/B3N1K1/1nq1b2Q/2Bbn1b1/b1Pqrkrb/1n1P2Np/2B5/5B2 w - - 0 1 legal: proof: g4 b5 b4 d5 a4 bxa4 h4 f5 c4 g5 e4 gxh4 b5 fxe4 Rh3 c5 Rc3 d4 Ra2 dxc3 Rb2 Qd6 Rb3 Qd8 Rb4 cxb4 Ke2 Kf7 Ke3 Kf6 Kf4 a5 b6 h5 d3 e5+ Ke3 Kg5 b7 a3 f3 b3 Bg2 c2 Qe2 h3 Qd1 h4 Qd2 b2 Bh1 h2 Qe2 a2 Na3 a1Q Nb1 a4 Na3 b1B Qg2 h3 Bb2 c1B+ Qd2 Bc2 Nb1 a3 Nc3 a2 Nb1 Qc7 Bd4 Be6 Bg2 h1B Ne2 Ba4 Bf1 Ne7 Bc5 Ng6 Ba7 Be7 Nbc3 Rg8 Nd5 Nf8 Ng3 Nbd7 b8B Bf6 Ne7 Nb6 Be2 Rg6 Bd1 Qc6 Bb3 Qb2 Bc2 a1N f4+ Kh4 g5 Kg4 f5 Qd4+ Ke2 Nb3 Qe3 Rg8 g6 Bh4 Qh6 e3 f6 Bhd5 g7 e4 f7 Bd2 Be5 Rc8 Beb8 Rh8 g8B Rh7 Kf1 Rg7 Kg1 e2+ Kh2 e1R Bh7 e3 Be4 e2 Bg2 Nfd7 f8B Bdg5 Bf1 Kf3 Ng6 Ke3 Bc5 Nf8 Ne7 Rd1 Qh5 e1N Qh6 Nf3+ Kh1 Rg6 Nh5 Ne5+ Kh2 Re1 Bb1 Bf2 Bc2 Bg1+ Kg3 Bf4+ Kh4 Bf2+ Ng3 Rg7 Kh5 Rg4 Ne4 Bh4 Ng3 Kf3 Qg5 Bc1 Kh6 Ree4 Kg7 Bf4 Qg6 Bfg5 Qh6 Kf4
rn4q1/bb3NR1/3Rn1np/Nb5P/2N1nr1q/b1KP4/3Nqk2/2Q1Nb2 w - - 0 1 legal: proof: c4 f5 b4 d5 e4 dxe4 b5 f4 b6 axb6 c5 bxc5 Bb2 c4 Ba3 c3 Bc4 g6 Bc5 Bg4 Be6 Be2 Be3 fxe3 f4 Bf3 f5 Bg4 f6 Bf5 Bb3 Bd7 Be6 Bc8 Bf5 gxf5 a4 Kd7 g4 Ke6 h4 Kd5 f7 Kd4 h5 e5 g5 b5 g6 c5 a5 c2 g7 c1B a6 h6 a7 e2 Qb3 f4 Ra4+ c4 Qc2 f3 Ra2 c3 Qd1 b4 Ra4 c2 Ra1 b3 Rh3 b2 Ra2 Nf6 g8N Bc5 f8N Bb7 Nc3 b1B Nd7 B1a3 Nb6 c1N Nc4 Nb3 Ne7 Qg8 Ne3 Bd3 Rb2 Bb5 Kf2 e1N d3 Ng2 Nc8 Nf4 Ke1 Ng6 Qc1 f2+ Kd1 f1B Nc4 e3 Kc2 e4 Na5 e2 Nb1 e1Q Rg3 e3 Nd6 e2 Nd2 Ne4 Ngf3+ Ke3 Nf7 Kf2 Rg5 Be3 Rd5 Rh7 Rd6 Nbc5 Rb4 Ne6 Rb1 Nf6 Kc3 Qd1 Rb4 e1Q Rg4 Qa4 Rg5 Qe2 Ne1 Qh4 Rg4 Rg7 Rg3 Nh8 Rg1 Rg4 Rg3 Rf4 Rg7 Nc6 Qc2 Ng6 Qc1 Rf8 a8N Nb8 Nb6 Ne4+ Kb3 Rd8 Nbc4 Ba7 Kc2 Nc6 Kb3 Ra8 Kc2 Nb8 Kb3 Nf6 Kc3 Ne4+
q1N1rq1q/2q1N1P1/2RbrRN1/2B1qr2/p1n1r1k1/1b6/3n1n1P/1N2K1N1 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 a5 g5 a6 h5 Qd2 f3 Qf4 gxf4 g5 bxa6 Bh3 a5 Bf5 a4 Bg4 hxg4 b4 Ke7 e4 Ke6 c4 a5 e5 Kf5 e6 d5 c5 f2+ Ke2 f1R g6 d3+ Kd2 d4 e7 f3 e8N a3 b5 a4 g7 g3 c6 g2 b6 a2 b7 f2 c7 Nd7 b8N Nc5 Nc3 Ne7 Nce2 Be6 c8N Qc7 Nd7 Ra6 Ba3 Re1 Nc3 f1R Rd1 a1Q Na2 Re4 Nc1 Nd5 Ne7+ Kg4 Nc6 f5 Ne7 f4 Ng8 f3 Re1 f2 Ne7 Ne3 Ng8 Bd6 Re2 Bb3 Nf3 g1Q Nh4 Qg2 Ne7 Rf8 Na2 Rf5 Bc1 Re1 Nc3 f1Q Ng8 Qh3 Nf3 Qh8 Ng1 Qf4 Bb2 Qa3 Nf8 Qe5 Rf2 Re2+ Kc1 d2+ Kb1 d1N Kc1 d3 Ne7 Re1 Kd2 Ra8 Rf1 Nf2 Nb1 Rc8 Bd4 Re2+ Kc3 d2 Nfg6 Rd8 Rc1 d1Q Rc2 Re1 Rc1 Qf3 Kd2 Qb4+ Rc3 Qbb7 Rc1 Qa8 Rc4 Ncd3 Rc6 Nc1 Bc5 Qca7 Nc7 Re8 Nb5 Qc7 Na7 Rg5 Nh3 Qff8 Rf1 Rf5 Ng1 Ncd3 Nac8 Nb2 Bd4 Nbc4+ Kc3 Nh3 Kd3 Nd2 Bc5 Rc1 Rf3 Nf2+ Ke2 Rcc4 Ke1 Rb4 Ng8 Re6 Ng8e7 Rb8 Nb6 Re8 Nbc8 Rg5 Rf7 Rf5 Rf6 Nec4+
2r2b2/1Bp2q2/2PnR3/5Bb1/1Pnr4/k1rbb3/rR2b3/Q1RbrRRK w - - 0 1 legal: proof: d4 b5 g4 g5 f4 e5 e4 f6 a4 bxa4 f5 h6 Bf4 exd4 e5 Nc6 e6 Nb8 Be5 fxe5 Ne2 Qf6 Nf4 Qd8 Nc3 gxf4 Ne4 h5 g5 Na6 Nf2 Nb8 Ng4 hxg4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 c4 Kb4 e7 a5 e8R d5 h5 e4 h6 a3 h7 a2 f6 f3+ Kg1 g3 b3 d3 f7 f2+ Kg2 d2 g6 d4 g7 d3 c5 e3 c6 e2 Rc1 a1B Rb1 e1R Rh2 a4 Qc1 d1B Qb2 a3 Qe2 d2 Qa6 a2 Re3 Nd7 Rc3 Qf6 Bc4 f1B+ Kh1 g2+ Kg1 Nb6 Qa7 Ne7 g8B Ba6 Be6 Nf5 Bd5 Bad3 Rcc1 Nd6 Be6 Rc8 Bf5 Nbc4 Rb2 Qg6 Rh6 Bfe2+ Kh2 g1B+ Kh1 Qg7 Re6 Qg6 Qd4 Ka3 Qg7 Qf6 b4 Be3+ Qg1 Bg7 f8R Qf7 Rbb1 Baf6 Rb2 a1R Qf1 Qg6 Bf7 Rg8 h8R Ra2 Rh7 Bgh6 Rg7 Bfg5 Be8 Qf6 Bd7 Qe7 Rff6 Qf7 Rgg6 Bf8 Rg7 Rd8 Bc8 Re8 Bb7 Rc8 Qg1 Rh8+ Bh3 Rh4 Rf1 Rd4 Bf5 B1c2 Qg3 d1R Qe5 Rd2 Rgg6 Bcd1 Qg7 Rc2 Qh8 Bgf4 Rgg1 Bg5 Rbb1 Rf4 Qa1 Rd4 Rb2 Rc3
2B4R/3BbPkr/p4r1n/b1Pr2B1/rp2r2N/N1q2n2/1B1B3q/1b3K1n w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 g5 c5 g6 cxd4 Bg5 hxg6 Bf4 g5 Bc1 g4 b4 Ra7 a4 Nf6 b5 Kf7 Qd2 Ra8 Qb4 axb4 a5 Ke8 a6 Ng8 a7 Rh7 Ra2 Rh8 Ra6 bxa6 f4 Kf7 c4 g5 h4 d5 b6 e5 f5 e3 b7 e4 f6 e2 h5 d3 h6 g3 h7 g4 Nd2 d4 Bg2 Bf5 Bf3 g2 Rh6 g3 Bg4 Qc7 Rh1 Nh6 Rh2 Nd7 b8B Be7 Nh3 g1Q+ Nf1 g2 Bb2 Ne5 Rh1 Qh2 Ng3 g1B Kd2 e1R+ Ne2 Ra1 Bc3 Ra4 Ke1 d2+ Kf1 d1N Be1 e3 Nc3 d3 Nb1 d2 Nf4 Nf2 Ng2 d1R Nh4 Rd5 Bd2 Nf3 Na3 Bb1 Bd7 Qc6 Bc7 Raf8 a8B Qc5 Bd8 Qd4 Ng2 Qc3 Bb7 Kg6 Bbc8 Rf7 Ke2 Rhf8 h8B Rh7 Kf1 Qf4 Bb6 Ng8 Bc7 Qa1 Bd6 Rh3 Rh2 Nh1 Ne1 e2+ Kg2 Bb6 c5 Ba5 Bc7 Qh4 Bcf4 Kh7 Bg5 Qf4 Nd3 e1R Ne5 Re4 Ng6 Rh6 Rh5 Qh2+ Kf1 Rf7 Nh4 Rg7 f7 Rg6 Be5 Rf6 Bb2 Kg7 Bbc1 Qc3 Bb2 Rhg6 Rh8 Rh6 Bdf4 Rh7 Bd2 Nh6
r5b1/1BnpbPBR/1p4P1/3Q2Rr/n3rbn1/b6K/2B4B/1qkqbB2 w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 c5 Nc3 cxd4 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Bg7 Nf2 Bf8 Ng4 hxg4 Kf2 Kf7 Kg2 e5 c4 e3 a4 d3 h4 f3+ Kg3 e4 g6+ Kf6 a5 Ke5 h5 Kd4 a6 Kc3 c5 e2 c6 e1B+ Kh2 f2 h6 d2 c7 b3 h7 e3 f6 b2 a7 b1N Ra2 g3+ Kg2 e2 Ra5 Nh6 Ra6 Be7 Rh3 Ng4 Ra4 Na6 Kf3 g2 Kg3 g1B Ba3 Bh2+ Kf3 Bf4 Bc5 Kb2 Kg2 Nc3 Qb3+ Kc1 Bb4 d1Q Ra5 Na4 Bc5 Bb4 Rh2 e1B Kh3 Ba3 Bd6 b6 Rd5 Qg8 Rg5 Bb7 c8B Bd5 Bb7 Nc7 Rh1 Bf7 Qd5 Qg7 Rh2 Rhe8 h8B Bg8 f7 Qa1 Bg7 Qb1 Bd3 f1R Bc2 Rf2 Ba6 Rg2 Bf1 Bh4 Rh1 Re2 Rh2 Re5 Rh1 Rac8 a8B Rcd8 Bb7 Ra8 Rh5 Rg5 Rh7 Rh5 Rg1 Bf8 Rg2 Re4 Bde5 Bfe7 Rg1 Ne3 Rg5 Ng4 Bd6 Be3 Bg3 Bf4 Bh2 Be1+
1QNR1b2/1Nq2bnP/Kp3r2/r2Nn2N/R1rp1bk1/2n5/2NrrbP1/8 w - - 0 1 illegal: No proof kernel
2Rn1nN1/2RNn3/RnbrR1P1/1rb1q2R/5pn1/2k3B1/pq2pq1P/3K4 w - - 0 1 illegal: No possible last move, all moves rejected
1N1B1b2/Pn1BnP2/r5p1/1b1p3n/N2N1rb1/6q1/NpKQ1nkq/3r3N w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 f4 g5 f5 a5 Ra2 axb4 h4 Nc6 g4 Rb8 Ra3 Qb6 Rf3 Nd8 Rf4 gxf4 g5 Nc6 g6 Ra8 g7 Qd8 Rh2 Nb8 Rg2 Qb6 Rg4 Qd8 Rg6 hxg6 Kd2 Kf7 c4 Kf6 h5 Ke5 c5 d5 f6 b5 a5 d3 a6 b3 c6 b4 h6 b2 c7 e3+ Ke1 Ke4 h7 e5 Qe2 f3 Kd1 b3 Qg2 e2+ Kd2 e1R Qg5 f2 Qh5 Nc6 Kc3 d2 Nf3 Na5 Qg5 Rd1 Nd4 Bg4 c8N Nb7 Nb6 Ne7 g8N Qd6 Bb5 f1N Bd7 Ng3 Nh6 Nh5 Nhf5 Rg8 h8N Qb8 Ne6 Kf3 Nf7 e4 Ne5+ Kg2 Na4 e3 Nc6 e2 Ng3 e1Q Nh1 Qh2 Nb8 Qeg3+ Qe3 Rg7 Nd4 Rf7 Kd3 Ra7 Nbc3 Ra8 Na2 b1B+ Kc3 Bd3 Ba3 b2 Bb4 Bb1 Ba5 Bd3 Bd8 Bb5 Kc2 Ra1 Qg5 d1N Qd2+ Nf2 Nbc6 Rd1 a7 Rc8 Qc3 Rc7 Nb8 Rc4 Ne6 Rf4 Nd4 Ng8 Qd3 Re7 f7 Re6 Qc3 Ra6 Qd2 Ne7
2K1BrRb/P4B1p/3qpq2/k6b/1b3N2/p2nr1PB/Np1B2nB/3q2n1 w - - 0 1 illegal: No proof kernel
6b1/2q2n1N/rPN5/2K3pp/2qn1PN1/k1bQ2r1/qNp2pBB/3q1rN1 w - - 0 1 legal: proof: g4 b5 a4 bxa4 b4 g5 c4 d5 h4 gxh4 f3 dxc4 g5 f6 g6 e5 f4 e4 Rh3 Bg4 Rf3 Bf5 Raa3 Bc8 Rad3 exf3 Rd5 Bd6 Rc5 Bf8 Rg5 fxg5 Kf2 Ke7 Ke3 Kd6 Kd4 a5 e4 c5+ Kc3 a3 d4 a2 g7 a1R b5 a4 b6 h3 d5 h2 Be3 h1Q Ne2 a3 Nd2 a2 Bh3 Nh6 g8N Qc7 Nb3 Ra6 Bd7 Bg7+ Nf6 Nf7 Bh3 Be6 Qd3 Rf1 Bg1 f2 Nbc1 Nc6 Bg2 Nd4 Bh2 a1Q+ Kd2 h5 Ke3 c3 Nh7 c2 Ng1 c4 e5+ Kc5 d6 Kb4 d7 c3 d8N Ka3 Nc6 Re8 Ke4 Bb3 e6 Qa2 e7 Rea8 e8N Rd8 Nce2 c1Q Nef6 c2 Nc3 Qd1 Ng4 Qe2+ Qe3 Qc4 Qd3 Bh8 Na4 Rd6 Ke3 Re6+ Kd2 Re3 Nb2 Rg3 Ne7 Nf3+ Ke3 Bc3 Nc6 Nd4+ Ke4 Qb4 Nf3 Ra1 Nhf6 Nh8 Nh7 Bg8 Nb8 Qc1 Ng1 Nf7 Nc6 Qd2 Nd8 Rf1 Nc6 Qb1 Kd5 Qdd1 Bf3 Qb3+ Kc5 Q1a2 Bg2 Qc4+
2N4Q/n1N2Pn1/2r1nk2/Nb4Np/1Rpbr3/1b1Kp2b/Rp3q1P/5nN1 w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Bd2 e4 Bf4 gxf4 Kd2 Kf7 a4 h5 g4 e5 c4 d5 a5 b5 f6 e3+ Kc2 b3+ Kd3 e4+ Ke2 f3+ Ke1 d3 c5 b4 g5 e2 Kd2 e1N a6 e3+ Kc1 f2 a7 d2+ Kb2 Nc6 Ra5 Nge7 Qf3 d1B Bb5 f1N Na3 Ng2 Qf2 Nf5 Bc4 Ng7 g6+ Ke6 f7 Nf4 Qe1 Qh4 Qc3 Rh6 Kb1 Rb8 a8N Na7 c6 b2 c7 Bc5 Qd4 Be2 Kc2 b3+ Kc3 Bd7 c8N b1B Nc7+ Kf5 Rb5 b2 Rb4 Ba2 Kc2 Qf2 Qc3 Ne8 g7 Ne6 g8N N8g7 Nf6 Bd4 Nh7 Rb5 Ng5 Kf6 Qd2 Bg4 Kd3 Bb3 Qc3 Rb6 Ba6 Be8 Nc4 Bh3 Na5 Bd7 Bc4 Bb5 N1f3 Rc6 Rg1 Ng3 Ra1 Nf1 Ng1 Rh8 Ra2 Re8 Qe1 Nf8 Qd1 Re4 Qg4 Nfe6 Qf4+ Kg6 Qd6 Kf5 Qf8 Kf6 Qh8 dxc4+
bK2B3/4PBkP/2q3n1/rbb3p1/2NpBnN1/B1b1pRB1/1p4pp/7r w - - 0 1 illegal: No proof kernel
nB1b2n1/Pk4n1/1B1qRb1n/1b1r4/2BrR3/3P1R1B/Kb1b4/2Nr2n1 w - - 0 1 legal: proof: b4 a5 h4 axb4 c4 b5 a4 d5 cxd5 e5 f4 exf4 h5 b3 h6 b4 Na3 bxa3 Qc2 gxh6 Qd1 h5 Qc2 h4 Qa2 bxa2 Kd1 Kd7 Kc2 f5 Kb3 c5 g4 Kc7 e4 h5 e5 c4+ Kc3 f3 d3 f4 g5 h3 a5 h2 d6+ Kb7 d7 f2 g6 h4 g7 h3 e6 f3 e7 Na6 e8R Rh5 Bg2 f1R Ne2 Rd1 Bf1 f2 Re3 Rd5 Rg1 h1N Re7 h2 Bb2 Ng3 Rf7 h1N Rf5 Nh5 Rf4 Be7 Rf5 N1g3 Rf7 Nf5 Kc2 c3 Kb3 c2 Rg2 c1B Rf8 Nc7 Nf4 Bd2 Rg1 Nfh6 Bh3 f1N Rg4 Nfg3 Be5 Ne2 Rf6 Ra6 Re6 Na8 Bb8 Ng1 Ne2 Rad6 Nc1 Bf6 Rb1 a1B Rge4 Bab2 Ka2 Rd4 Ra1 R6d5 Rb1 Qf8 d8B Qd6 Bb6 Bd7 Ra1 Bb5 a6+ Kc6 a7 Bd8 Rb1 Kb7 Ra1 Ngf6 g8B Ng7 Bf7 Nfg8 Rb1 Ba1 Rb4 Bb2 Rf4 Bh4 Rf3 Bd8 Kb3 a2 Rc4 a1B Ka2 Rh4 Rcf4 Bbf6 Rfe4 Bab2 R6e5 Rd4 Bc4 Rh5 Re6 Rhd5
K1k2qr1/1NB3q1/rr3rbP/1B3N1p/1n6/Bb1B1Q2/1qN3Pn/2r4r w - - 0 1 illegal: No possible last move, all moves rejected
3b1R2/2nn4/3Bp2q/B1pB4/2PNNnqk/1pr1p1br/2P1rB2/3K2N1 w - - 0 1 legal: proof: g4 f5 e4 fxe4 b4 h5 a4 hxg4 b5 a5 d3 b6 Ra3 Ba6 Rb3 Bxb5 Ne2 Bc4 Rb4 axb4 dxc4 b3 Ng1 b2 Qd5 Nh6 Qg8 Nxg8 h4 Kf7 f4 Kf6 a5 d5 a6 g5 a7 c5 f5 e6 h5 d4 h6 b5 h7 e3 Ke2 d3+ Kd1 b4 Nd2 b1R Rh2 g3 Bh3 g2 Ke1 g4 Ngf3 g1N Nb3 d2+ Kf1 g3 Rg2 Ne7 Rf2 Ne2 Bg2 Nd7 Nbd4 Nd5 Bh1 Rb8 a8N Be7 Nb6 Qf8 Nc8 Nc7 Nd6 Bd8 Bg2 Rb3 Bb2 Rb6 Bc3 d1Q+ Be1 Rc3 Bh1 Ra6 Bg2 b3 Bh1 Kg7 f6+ Kh6 f7 Kh5 Bg2 Qg7 f8B Ra1 Bh1 Nf4 Bg2 Nfd5 Be7 Qg4 Bf8 Qb1 Ke2 Qc1 Bh1 g2 Be7 g1B Bh4 Rd3 Ba5 Bh2 Bg2 Rc3 Bg3 Rf8 h8B Qh1 Bhe5 Rh8 Bef4 Rg1 Rf1 Rh7 Kd1 Rh8 Be1 Bg3 Be5 Qh2 Bh1 Rg2 Bf4 Qg7 Ng1 Re2 Rf3 Qg4 Bf2 Qhh3 Be5 Qhh4 Rf8 Nf4 Bd5 Qhg5 Ne4 Qg7 Nd2 Kg5 Bd6 Rh3 Ne4+ Kh4 Ng5 Qg6 Ne4 Qh6
1bBNN1K1/brr2bR1/1N1b1P2/brP1qn1R/4R1bn/7n/k3q3/N4q2 w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Qg4 e4 Qf3 Nf6 Qd1 Ng8 g4 h6 Bf4 Ra7 Qd2 Ra4 Qg2 gxf4 g5 Ra3 g6 Ra8 Qg5 hxg5 Kd2 d5 c4 Kd7 a4 Kc6 h4 Kc5 a5 b5 h5 e5 g7 d3 h6 d4 f6 f3 h7 g4 a6 g3 a7 e3+ Ke1 b3 Rh2 Kb4 Nh3 f2+ Kd1 b2 Nc3 Kb3 Bg2 b1B Na4 e4 Bh1 g2 Nc3 g1B Na2 b4 Bf3 e2+ Kd2 e1B+ Kc1 f1Q Bg4 e3 Rg2 d2+ Kd1 Qe7 Re2 Nd7 Bf3 Nh6 g8N Qe5 Nf4 Bg6 Bg2 Nf5 Ne6 Bd6 Be4 Nf8 Bd5 Rb8 a8N Rb5 Nac7 Bg3+ Re1 Ka3 Kc2 d1N Ne7 e2 Kd3 b3 Bb7 b2 Ned5 b1R Nd8 Bf4 Ne8 Nf2+ Kc2 Bb8 Nb6 Nh3 Kd3 Rg8 h8R Rg7 Ba6 Rc7 Rh5 Kb2 Nb4 Bfh2 Kd2 d3 Nc2 Bc5 Ra5 Bhg1 Ra3 Bd6 Na1 Be6 Rc3 Ka2 Bc8 Bd7 Na4 Bb6 c5 B6a7 Nb6 Be6 Rc4 R1b3 Rd1 R3b4 Re4 e1B+ Kc1 d2+ Kc2 Bc4 Rb1 Be2 Rb3 Bg4 Rg3 Bf7 Rg1 Ng6 Rg2 Ngh4 Rg3 Qg1 Kd3 Bg6 Rg2 Rb2 Kc4 d1Q Rg3 Ba5 Rg2 Qf3 Rg3 Qef4 Kd5 Qgf1 Ke6 Q3e2 Nd7 Bh7 Kf7 Bg6+ Kg8 Rbb7 Nb6 Qe5 Rh7 Rb5 Rg7 Bf3 Rg5 Bg4 Rh5 Bf7+
B3q1R1/3b3P/K1B2n2/P1n1Bkr1/Rb2R1n1/r4rR1/q1N2q1b/q2n2n1 w - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 b6 e4 Nd2 axb6 Ndf3 exf3 Qd3 b5 Qf5 b4 Qg4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 f5 Kb5 d5 e4 f2 h4 g3 c4 f3 a4 b3 e5 d3 h5 g2 h6 d4 h7 f4 c5 b2 g6 b1N c6 d2 g7 d1Q c7 d3 Be3 d2 Ra2 Nc3+ Kb6 Qa1 Rh2 d1N Bd3 f1N Bc2 f2 Bc5 f3 Bg6 Nfe3 Bb4 f1Q Be8 f2 Bd6 Bd7 Bg6 Na6 Be8 Kf5 e6 Nc5 e7 Ne2 Rb2 Ng4 Rh3 N8f6 Ra2 Rg8 Nf3 g1B Rg3 Bh2 Bf4 Ng1 Be5 Qg2 Ne1 f1R Nc2 Rf3 Ra3 Qf2 Ra2 Qb8 c8R Ra5 Bf7 Ra8 Bd5 Ra7 Rc6 Qe8 Re6 Ra8 Bb2 Ra7 Re4 Ra5 Be5 Ra7 Kc7 b5+ Kb6 b4 Ba8 b3 Ra3 b2 a5 Rc7 Raa4 b1Q+ Nb4 Qba2 Nc2 Nb7+ Ka6 Rcc3 Nb4 Ra3 Nc2 Qh5 e8B Bb4 Bf7 Qg6 Bd5 Qe8 Bc6 Nc5+ Ka7 Rf8 g8R Rf7 Kb6 Rg7 Ka7 Rg5 Kb6 Nd3+ Ka6 Nc5+
b2Rq3/K2bR1n1/1rP3k1/bP1RqRN1/1q1pr1Nq/N7/n4n2/2q2Br1 w - - 0 1 legal: proof: g4 c5 a4 e5 d4 cxd4 f4 exf4 g5 b5 Kf2 bxa4 Ra3 h6 Ra1 f3 Qd3 g6 Qf5 gxf5 g6 Qe7 Bf4 Qd8 Bg5 hxg5 Ke1 f4 Kd2 f5 Kd3 d5 h4 a5 b4 a3 e4 a2 c4 f2 c5 f3 g7 Kf7 b5 a4 h5 f4 e5 g4 h6 a3 e6+ Kg6 e7 g3 e8N g2 h7 Nf6 Ne2 g1R Rh3 Na6 Ng3 Rb8 Bg2 f1B+ Ne2 f2 Rh2 f3 Rh1 Bd7 Bh3 Rb6 Nc7 Bg2 Ne6 f1Q Bg4 f2 Rh3 Nh5 g8R+ Ng7 Ng5 Nb4+ Kd2 d3 Ke3 d2 Kd4 d1N Rf3 Qe1 Bh3 f1Q Nc1 Nf2 Rf5 Qde8 Nd3 Bd6 Rgf8 Bc7 R8f7 Qfe2 Re7 Qh5 Rf3 Rg8 h8R Qh4+ Rf4 Be4 Bf1 Rf8 Rf3 Rf4 Rh5 Rfg4 Rf5 Qd2 Nc3 Qf4 Rd1 a1Q Rd2 Qc1 Nb1 a2 Na3 Rb7 Rh8 Ba5 Rg8 Rb6 Ne5+ Kh5 Rd3 Qfd2 Rgf8 Rf4 Ng4 Kg6 Ke5 a1Q+ Rd4 Rb7 Kd6 Rb6+ Kc7 Na2 Rg8 Qb4 Rh8 Rf6+ Kb7 Rb6+ Ka7 Bg2 Rd2 Re4 Rhf8 Qe5 Rd3 Qf7 Rd8 Qe8 Rd1 Bc6 Rd2 Ba8 c6 Bh3 Rc2 d4 Rc4 Bg2 Rc5 Bf3 Rcd5 Bd1 R5d7 Bb3 Rd6+ Be6 Rd5 Bd7
2N1b3/q4P1b/Pb3k2/p1bnn3/K1N2rR1/3nr1Nq/1b2q1R1/R1Nr3Q w - - 0 1 legal: proof: e4 a5 d4 c5 h4 cxd4 e5 g5 e6 gxh4 Bd3 a4 Bc4 fxe6 Bb5 e5 Bf1 e4 b4 b6 b5 Nc6 Bc4 Qc7 Bd2 Ne5 Ba5 Nc6 Bb3 axb3 a4 Qd8 Bb4 Bh6 a5 Nb8 a6 Bf8 Ba5 bxa5 Kd2 Kf7 f4 h5 c4 d5 g4 e5 c5 e3+ Kd3 e2 g5 e1B f5 e4+ Ke2 b2 c6 e3 Kd3 h3 Kc2 e2 Kb3 h4 b6 d3 g6+ Kf6 b7 d4 c7 d2 g7 d3 Na3 b1B Qc2 d1R Qa2 h2 Nc2 d2 Nb4 h3 Qb2+ Qd4 Nc2 Bf2 Qa2 e1B Nb4 Qa7 Qc2 Nc6 b8N Bb6 Ne2 Nge7 g8R Nd5 Rhg1 h1N R1g5 h2 Rg4 Nf2 R8g7 h1Q Ka3 Bfc5 Qd3 Rh4 Qh3 Nd3 Ng3 Nce5 Nc6 Bd7 c8N Be8 Ka4 Rb8 Qf1 Qh3 Qh1 Bef2 R7g5 Bfd4 Na2 Bb2 Nc1 Rb7 Rg7 Re7 Rg8 Nc4 R8g5 Re3 Rg7 Nce5 Rg8 Kf7 f6 Ke6 f7 Kf6 Rc4 Rf4 Rg4 N3b4 Rc3 Bh7 Rc2 Nd7 Ne5 Nd3+ Nc4 N7e5+ Kb3 Rdf1 N4d6 d1Q Nc4 Qe1 Rf2 Qe2 Rg2 Nd7 Ka4 Rg1 Nf5 Rd1 Ng3 N7e5+
r1n1B1k1/1N3pP1/1r3rPr/3bN1r1/1nRb3B/4q3/3q2Nn/BK2r1bN w - - 0 1 illegal: Other
1nBQb2R/7b/1b1q3r/nP1bnbR1/r2B3B/6p1/K1R1P1r1/1n1q1k1B w - - 0 1 legal: proof: g4 g5 a4 h5 d4 c5 f4 cxd4 a5 gxf4 g5 e5 Na3 e4 Nf3 exf3 Nc4 b6 Ne5 bxa5 Ng4 hxg4 Qd2 a4 Qd3 Ke7 Qd1 Ke8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb1 Ke4 h4 f5 b4 d5 h5 a5 h6 a3 c5 g3 h7 a4 c6 d3 g6 f2 c7 d2 g7 Ke3 b5 a2+ Kb2 f3 Rb1 a1N Rh6 a3+ Ka2 d4 Rh1 d3 Rh6 f4 Ra6 Nb3 Ra7 Qd6 Qe1 Bf5 c8B Nf6 g8R Ng4 Rd7 Ne5 Rb7 Ra4 Rb6 Na5 Ka1 a2 Bg2 f1N Bd7 f2 Rg6 f3 Bb2 d1Q Be8 d2 Bf7 Rc4 Bc1 Bh6 Kb2 a1R Be8 Bg5 Bd7 Bd8 Ra6 Bb6 Rh6 Bg6 Rh1 Be8 Bdh3 Rf8 h8B Rf6 Rg1 Rh6 Bf5 Rh2 Bgh3 Rg2 Bc8 Raa4 Bg7 Rh4 Bf8 Rac4 Be7 Rh6 Bce6 Nh2 Beg4 f1B Rh1 f2 Ka2 Nhf3 Bd7 Qa4+ Ba3 d1B Rc1 Nd2 Bc8 Bc2 Qd1 Nb1 Bh4 Bh7 Ra7 Qc2+ Bb2 Qcd2 Bhd7 Qc2 Qd5 Qd1 Bd4+ Kd2 Bc6 Ke1 Rd7 Rg1 Rh2 Bh3 Ra7 f1B Rc2 Bfg2 Rg7 B3f5 Rg5 Kf1 Qg8 Bd5 Rh3 Bde6 Bh1 Bd5 Qh8 Rg2 Rh2 Bec6 Qd8 Be8 Rg7 Rg6 Bg5 Bhg8 Rh8 Bh7 Bh4 Rh6 Rg5 Ra4+
bB1k2Kb/2n5/1Pqqp1n1/3NnP2/B1N1b2R/bNn1q1b1/N5B1/r3r3 w - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 c5 g4 cxd4 a4 bxa4 Ra3 g6 Rf3 fxe4 f5 g5 Rf4 gxf4 g5 Qa5 Qf3 Qd8 Qg4 hxg4 Ke2 d5 c4 a5 h4 g3 h5 e3 Kd3 a3 h6 g2 c5 a4 b5 a2 c6 a1Q h7 a3 b6 a2 g6 e2 c7 e1B g7 e6 Bd2 f3 Rh2 f2 Be3 Qd6 Bh6 Nd7 Na3 Qc3+ Ke2 a1B Bg5 d3+ Kf3 d4 Kg4 d2 Kh5 d1N Kg6 d3 Nf3 g1Q Rg2 d2 Bf4 Bb7 c8B Be4 Nc4 Ne3 Rg4 d1N Nfd2 Nd5 Nb3 Nc7 Bg2 f1B Rh4 Kd8 Kf7 Ne7 g8N Bg3 Nf6 Ng6 Nd5 Qge3 Nb4 Ra4 Na2 Nde5+ Kf6 Be2 Bd7 B2f3 Be8 Be7+ Kg7 Qc2 Bc6 Nc3 Bd7 Ra7 Ba4 Ba8 Ncd2 Bfe4 Nc4 Rf8 h8N Rg8+ Kh6 Bb2 Kh7 Bf6 Bd7 Ba3 Ba4 Ne7 Ng6 Bh8 Nf8 Rg5 Nd7 N7g6 Nf6 Rh5+ Kg8 Rh7 Rg4 Rh1 Rh4 Re1 Nd5 N3b5 Ncd2 Qcc6 Nc4 Nc3 Bb5 Nf7 Rh2 Bc1 Nd4 Qa3 Nab4 Ne8 Bb8 Nfe5 Nb3 Nc7 Rh4 Bb2 Na6 Qad6 Nab4 Ra3 Ba4 Raa1 Na2 Ba3
NRR1bq1r/p2b4/4rN2/qP5N/7r/Q3r1q1/1RbnP2k/rn2K1bN w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 c4 Ke7 b4 Ke6 h4 Ke5 g6 f1Q h5 d5 c5 f5 g7 d3 h6 d4 h7 f3 c6 Kf4 c7 Kg3 Rh6 a3 Rh2 a2 Rh4 f4 Qc1 f2 Rh6 f3 Qe1 Nc6 Kd1 d2 Rh4 Nce7 Rh6 Nf6 g8R Bd7 c8N Ne4 Nd6 Nd5 Nc3 Qa5 Ne8 Bc5 Ra6 Kh2 Rf8 g3 Rf4 g2 Nf6 Rae8 Nb1 Re6 Nh3 g1Q Na3 Qg3 Rb1 a1R Nb5 Ndc3+ Kc2 d1R Nc7 Be8 b5 Rd3 Qc1 Nd2 Rc6 Rde3 Rb2 Ncb1 Na8 Bb6 Rc8 Bc5 Qe1 d3+ Kd1 Ra4 Rf5 Rh4 Rf4 Qfg1 Rc4 f1B Nf2 Bh3 Rb8 Qf1 Nh1 f2 Rcc2 Rc6 Rc4 Bhd7 Rc1 Bd4 Rc5 Rce6 Rcc8 Qfh3 Qf1 Qf5 Qe1 Qc5 Qf1 Qf8 Qe1 Rg8 h8N f1R Ng6 Rgh8 Nf4 Nf3 Rb7 d2 Rbb8 Rg1 N4h5 Rf1 Kc2 d1B+ Kc1 Bb6 Qc3 Nfd2 Qb4 Rff4 Qa3 Ra4 Qd3 Ra1 Qd6 Ba4 Qa3 Rb3 Kd1 Bg1 Nf2 Rbe3+ Ke1 Qg6 Nh1 Bc2 N1g3 Qg4 Nh1 Qg3+
3n1nQ1/Bbn1R1b1/BRr5/1bPnrp2/q1rB4/1K1n4/1Pr1B1k1/1n5R w - - 0 1 legal: proof: g4 g5 a4 h5 d4 c5 f4 cxd4 a5 gxf4 g5 e5 Na3 e4 Nf3 exf3 Nc4 b6 Ne5 bxa5 Ng4 hxg4 Qd2 a4 Qd3 Ke7 Qd1 Ke8 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 d5 h4 f5 c5 a5 g6 a3 g7 a2 h5 a4 h6 a3 h7 g3 Rh2 g2 Bd2 g1N Rh4 d3+ Kb3 d4 Rh3 f2 Qh5 f3 Bg5 d2 Qg4 d1N Bd3 f1N Kc2 f2 Be2 d3+ Kb3 d2 Qf3 Qa5 Bc4 Nf6 g8R Ra6 Rh5 Ne8 Be6 Bb7 Qd3 Nc3 Rc1 d1N Qd7 a1R Qf7 a2 Be7 Kf4 e5 Kf3 Rh4 Nc6 Rh1 Nd8 Rb1 Nfe3 Rc1 f1B Rc2 Nh3 Bd7 Ndf2 e6 Nc7 Rhg1 Nd3 Bb5 Ng5 Bd6 Rc6 e7 Rc1 e8B a1R Ba6 Nge6 Rh1 Nb1 Re2 Rc4 Rg6 Bg7 Qg8 Ned5 Bf7 Nf8 Re7 Raa4 Rge6 Ra1 Bh5+ Kg2 Be2 Rc2 Reh6 Ra4 Be5 Rac4 Bh2 Nb5 Bb8 Nbc7 Ba7 Nd7 Qf7 Re8 h8B Nf8 Qg8 Qa1 Rf7 Re5 Re6 Rd6 Ree7 Rg6 Rf6 Rh6 Rb6 Rc6 Rh4 Qa5 Rh1 Re3 Rf7 N3b4+ Bd3 Rf4 Qh7 Bh6 Bd4 Re5 Qg8+ Bg7 Bc3 Qa1 Re7 Rfe4 Be2 Qa5 Bd1 Bb5 Bh5 Rc4 Bd4 Nd3 Be2 Qa4#
2bB1rbB/6bn/R1r2p1q/2B2P2/1P4b1/B4RK1/N2Rbrn1/n1b1n2k w - - 0 1 illegal: Other
k1qK1R2/3Rnr2/N2n1bb1/N1pnR3/PP5n/B1b5/3r2rn/2br2RN w - - 0 1 legal: proof: c4 b5 f4 bxc4 h4 e5 b4 exf4 h5 a5 h6 a4 Qb3 axb3 e3 gxh6 Bd3 h5 Be4 h4 Bc6 dxc6 Rh3 c5 Rh2 Qd3 Rh1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb7 Ke5 h5 a4 f5 d4 c3 g4 b2 e4 h3 g5 h4 g6 c4 d5 c5 g7 c2 d6 h2 d7 c3 Ke6 h3 e5 f3 Nd2 b1N Kf7 f2 e6 f1N e7 f4 e8N f3 Ba3 c1B Nc4 c2 Ne3 f2 Nc4 Nf6 g8R Bb2 Ne5 c1B Ne2 Nbd2 Ng4 Nf3 Rg5 Bg7 Ra2 Nd5 Nh6 Nh4 Ng3 Bbf6 Ngf5 Nc6 Rh5 Rg8 Rd2 Nce7 Rg1 h1N Re2 h2 Ra2 Nhg3 Nc7 h1R Ne3 Nh2 Rd2 f1R Nc4 Ne4 Re5 Nd6+ Ke6 Ra7 Na6 Ka8 Nf5 Rf2 Na5 Re2 Rdd1 Rd2 Ng3 Qc7 Rdf1 Bb7 d8R+ Qc8+ Rd7 Bh8 Ne4 Rgg2 Rf4 Bc6 Nf2 Bb5 Rff5 Bd3 Rf4 Bg6 Rf3 Bg5 Rf8 Bhf6 Rf1 Rhg1 Nh1 Be3 Re1 Bd4 Rd1 Rf1 Rde1 Bc3 Rd1 Rf4 Rg1 Rfd4 Re3 Nef5 Ree1 Rd1 Re5 Qb8 Rdd8 Rf7 Rd7 R4d3 Rc7 Nfe7 Kd7 R3d2 Rb7 Ndc8 Rc7 Qb7 Kd8 Nd6 Rd7 Qc8#
5B1b/K1bQ4/5rnN/B2q1q1q/rN4BP/2pP4/N2r1nrp/B2br1k1 w - - 0 1 legal: proof: c4 b5 e4 f5 a4 bxa4 c5 fxe4 c6 g5 Bd3 g4 Bc4 dxc6 Ba6 c5 Bf1 c4 b4 h5 h4 Bf5 Rh3 Be6 Raa3 Bc8 Raf3 Qd7 Rf4 gxh3 g4 Qd3 g5 Qd8 Rg4 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Ke3 Kd5 f4 c5 d3 a5 b5 g3 b6 c3 b7 c2 f5 c4 f6 h2 g6 g2 g7 a3 f7 a2 Bb2 a1Q Qe2 c1Q+ Qd2 a4 Nf3 g1R Bg2 a3 Ng5 a2 Bf3 Rh6 Ne6 Qd1 Nd4 Rf6 Bc3 Nd7 b8B Rg2 Nc6 Nh6 g8N Ra4 Be2 Bd6 f8B Bc7 Bg7 Nf8 Nd4 Ng6 Nc2 Bg4 Bf3 Qb2 Qe1 a1B Nca3 Qb5 Bf8 Qbd7 Qd2 Qf5 Bg7 Kc5 Nb5 Qd5 Qf2 Bh5 Bg4 Qdf3+ Kd2+ e3+ Kc2 e4 Nd4 e2 Nc6+ e3 Ba5 e1R Nc3 Rd1 Nb4 Kd4 Bf8 Bb2 Nca2 Rd2+ Kb1 Qe2 Qf3 Ba1 Qh3 Qef3 Kc1 e2 Kb1 Ke3 Kc1 Bb6 Be5 Kf2 Bb2 Bc7 Bc3 Rd1+ Kc2 e1R Bb2 Kg1+ Kc3 Qc6 Kd4 Rdd2 Qg3 Qe8 Qd6 Qeb5 Qd7 Qbb7 Bh3 Ng4 Nh6 Nf2 Bg4 Qd1 Bh3 Bf3 Bg4 Qbb5 Bc3 Qb3 Bb2 Bd1 Bc3 Qh5 Bb2 Qbf5 Bc3 Be5+ Kc5 Bd6+ Kb6 Bc7+ Ka7 Bb2 Nd5 Ba1 Bb2 Qb5 Ndb4 Qbd5 Ba3 Bae5 Bb2 c3 Ba1 Rd6 Qe6 Bh8 Qd7 Rf6
4qR2/1B2Rq1N/3r1r2/nRPq4/K1npn3/b3rRpk/Bqb1qP1B/8 w - - 0 1 legal: proof: d4 a5 h4 g5 e4 c5 g4 cxd4 b4 axb4 Nd2 f5 Ndf3 fxe4 h5 h6 Nh4 Ra4 Qd2 gxh4 g5 Ra6 g6 Ra8 Qg5 hxg5 Kd2 d5 c4 Kd7 Kc2 Ke6 Kb3 Kf5 a4 Kg4 g7 e5 a5 b5 a6 e3 h6 h3 h7 d3 a7 d2 Rh2 d1Q+ Ka2 e4 Bd2 e2 Kb2 e1R Ra2 b3 Bc1 b4 Bf4 d4 Bg2 e3 Bd5 e2 Be4 Qf6 Nf3 Nc6 Ra4 Na5 Bd5 Qf7 Ra3 Nf6 g8R Ne4 Ra1 Bf5 Ng1 Rd8 a8B Rd6 Rh1 h2 Nf3 Kh3 Be6 g4 Rg1 h1Q Bh2 g3 Rc1 Qd2+ Ka1 b2+ Ka2 b3+ Ka3 b1Q Ka4 b2 Rc3 Qbc1 Rg6 b1N Rg5 Na3 Bb7 Qcb2 Bed5 Rg8 h8R+ Bh7 Re5 Rgg6 Re7 Rgf6 Rf1 Qh6 Rb3 Qhh5 Rg1 Qe8+ Rb5 Qhf7 Ng5+ Kh4 Rg8 Bg6 Nh7 Kh3 Bdc6 Qf3 Rf5 Qh5 Rf3 Qhd5 Rh1 Bh6 c5 N3c4 Rf8 Bd2 Re3 Bb4 Rf3 Ba3 Bb5 Rd1 Re1 Rd3 Rb1 e1Q B5c6 Re3 Bb5 Qbd2 B5c6 Qee2 Rb5 Qde6 Bd5 Qb2 Bc8 Ncd2 Ba2 Ndc4 Ba6 Qd5 Bb7 Ng5 Ba6 Bd3 Bb7 Ne4 Rd7 Bb1 Re7 Bc2+
2N1n2B/R3p1N1/n2n3B/2pKbNB1/q3BP2/bk1r3b/1r2Prn1/2r2r2 w - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 a4 axb4 c5 h5 c6 g3 Ra3 bxa3 Qc2 dxc6 Qh7 c5 Qe4 c4 Qg4 hxg4 f4 Kd7 h4 Kc6 d4 Kd5 Kd2 b5 Kc3 c5 a5 g5 h5 b4+ Kd2 g2 Ke3 c3 a6 Kc4 Ke4 a2 a7 a1B h6 b3 d5 g3 d6 b2 d7 g4 h7 c2 Rh5 Na6 Nf3 g1R Nh4 g2 Nc3 b1N Nb5 g3 Rf5 Qe8 d8B Be5 Bb6 Na3 Bb2 c1R Rg5 Nf6+ Kf3 Bg7 Ba5 Kb3 Nf5 Nc4 Be1 Nd6 Nc7 Qa4 Ne6 Rb8 a8N Rd8 h8B Nfe8 Nb6 Rh1 Ba1 g1R Rg6 g2 Bh4 Rh2 Bg5 Bb2 Rh6 Bge5 Neg7 Ba3 Rh3 Be6 Nc8 Rgh1 Ke3 g1N Bg2 Nf3 Bh6 Nh4 Be4 Bd7 Bc3 Rhf1 Be1 Nf3 Bh4 Rhf2 B4g5 Nh4 Rg3 Rh1 Rg1 Be6 Rd1 Rhf1 Rd5 Ng2+ Kd3 Nc4 Rd7 Ncd6 Ra7 Bd7 Ng3 Bh3 N3f5 Rd7 Bb7 Nc4+ Ke4 Ncd6+ Kd5 Ka2 Bc6 Rb2 Ke6 Kb3 Be4 Rb7 Kd5 Rb4 Rc7 Rbc4 Rd7 R4c3 Ra7 Rd3+
2qbb1q1/pn5K/Pq2BB1N/b2rp1NB/2B3Q1/3Nn3/2kb2P1/r1b2b2 w - - 0 1 illegal: No proof kernel
4NnR1/3n2r1/2q1RNq1/PP3BKb/2pq3R/5Nk1/2pnnq2/N2rbn2 w - - 0 1 illegal: No possible last move, all moves rejected
1N2b3/3b1P2/nkrb1q1R/1N1pbrN1/p1P1qr1r/5nQ1/3Kb3/R1R2R2 w - - 0 1 legal: proof: d4 b5 g4 g5 f4 f5 e4 fxe4 a4 bxa4 f5 c5 Ba6 cxd4 Bf4 gxf4 g5 h6 Be2 h5 Bg4 hxg4 b4 a5 c4 d5 h4 Kd7 g6 Kc7 g7 e5 b5 g3 f6 e3 f7 a3 h5 g2 h6 e2 h7 a2 Qc2 e4 Rh6 f3 Re6 d3 Kd2 e1R Rh6 e3+ Kc3 e2 Rf6 f2 Qb3 f1B Rf5 d2 Qa4 d1B Rf2 Bd6 Rf4 Qf6+ Kd2 Bd7 Rf2 Ra6 Qc2 Ne7 g8R Ng6 Qe4 Rc6 Qh4 Ba4 Rg7 Kb6 Nc3 Na6 Ne4 Ne5 Rc1 a1B Nf3 g1R Nd4 Rg5 Qg3 Rf5 Ng5 Bb2 Ra1 Rc1 Rg6 Rc3 Rf4 Rf3 Rh6 Rf2 Rf3 Be8 Rc3 R2f4 Rcc1 Nf3+ Kd3 Rg8 h8R Rg6 Rh1 Rh6 Rh7 Rhh4 Rh6 Bc2+ Ke3 a4 Rg1 Bh3 Rgf1 Bd1 Kd3 Bc3 Ke3 e1Q+ Kd3 Ka5 b6 Be2+ Kc2 Bg4 b7 Kb6 b8N Bb2 Nb5 Bbe5 Nh3 Rfh5 Ng5 Bgd7 Ne6 Rhf5 Ng5 Qf2 Ne4 Qg2 Ng5 Nd4+ Kc3 Qe4 Kd2 Nf3+
2q1b3/3Nk1K1/nP2B3/1n2Rppq/2P1rNrb/r3NR2/2pq1nR1/6bN w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 c4 e5 g4 exf4 b5 d5 g5 d4 Bb2 h6 Qc1 hxg5 Qc3 dxc3 Ba3 g4 Bb4 cxb4 Kf2 a5 e4 f5 h4 g3+ Kf3 g2 d4 b3 e5 b2 h5 c2 b6 a3 h6 a4 d5 a2 d6 a3 d7+ Ke7 h7 Nf6 e6 Rg8 h8R Ng4 Nc3 b1N R1h2 Na6 Nge2 g1B Rg2 Nf2 Nd1 Nc3 Rh3 Nb5 Ng3 g6 Rb1 a1R Ne3 a2 Nh1 Qe8 d8N Bd7 Rb3 Re1 Ra3 a1Q Ra5 Qd4 Rhg3 Na3 Re5 Nb5 Bd3 Qc5 Be4 Qc8 Bd5 Bh6 Rh3 Bg5 Rhg3 Bh4 Rh3 Kf6 e7 Qf7 Be6 Be8 Nb7 Qh7 Nc5 Qh6 Nd3 Qh7 Nd1 Re4 Ne3 Qh5+ Rg4 Bd7 e8N+ Ke7 Nf6 Be8 Nd7 Rg7 Ke2 f3+ Kd2 Nd1 Nf4 f2 Rf3 f1Q Rg2 Qe1+ Kd3 g5 Nh3 Rg4 Nf4 Qa5 Nf1 Nf2+ Ke3 Na7 Kd4 Nb5+ Kd5 Qe1 Ne3 Qc1 Re4 Qd2+ Ke5 Kd8 Kf6 Re7 Re5 Ra7 Bg8 Re6+ Kg7 Ke7 Rc5 Re4 Be6 Nb8 Rd5 Ra3 Re5 Na6
2r2Rn1/b3k3/pqr2Rr1/3pn3/1N4R1/pb1P1qq1/2P1n1NN/1NBK1b2 w - - 0 1 legal: proof: b4 c5 g4 cxb4 a4 e5 f4 exf4 a5 h5 a6 g5 d3 bxa6 Ba3 a5 Bh3 a4 Qc1 f3 Qf4 gxf4 g5 Ba6 Bc1 Bc8 Bg4 hxg4 e4 f5 h4 f2+ Kd2 f1N+ Kd1 a3 g6 a6 h5 f3 e5 f4 h6 f2 h7 g3 g7 b3 e6 g2 e7 b2 Ne2 g1Q Be3 f3 Nd4 Qb6 Nb3 Ng3+ Kd2 f1B Nc1 f2 Na2 Ne2 Kd1 Qg3 Nb4 Nc6 Rh6 Ne5 Rf6 d5 Bh6 Bd7 Be3 Ba4 Bc1 Kd7 e8N Rc8 Nd6 Rc4 Nf5 Rc6 Nh4 Ke7 Nf3 Bb3 Nh2 Nh6 g8R Bg7 Nc3 b1R Rgf8 Rb2 Nb1 Ng8 Rf4 Bh6 Rg4 Be3 Rf6 Qb8 Rf8 Ba7 Rf6 Qb6 Rf8 Nh6 Rf6 Ra8 h8N Rac8 Rf8 Ng8 Ng6+ Kd7 Nf4 Ke7 Ra2 Bh3 Ng2 f1Q+ Kd2 Qf5 Kd1 Qff3 Ra1 Rg6 Ne1 Bf1 Ng2 Bc4 Ra2 Rb3 Rb2 Rc3 Rf6 Ba2 Rb3 R3c4 Rc3 R4c7 Rcc4 Rc5 Rcf4 R5c6 Rf8 Bc4 R4f6 Bb3
4Rb2/B1r4n/B1KPrrkn/5Npq/4r3/N1bB1n2/rP1pb1Bp/7N w - - 0 1 legal: proof: c4 b5 h4 d5 g4 dxc4 a4 bxa4 d4 e5 g5 f6 d5 g6 Qd4 exd4 h5 gxh5 g6 h4 Ra3 Ke7 Rg3 Ke8 Rg5 fxg5 Kd2 c5 e4 a5 f4 h5 d6 d3 Ke3 h3 g7 Kf7 e5 h2 Ke4 a3 Kd5 a4 e6+ Kg6 e7 h4 Be2 c3 Be3 c4 Bd2 a2 Bf1 a1N Ne2 a3 Bg2 c2 Bc3 c1B Re1 h1R Rf1 a2 Rf3 h3 Bf1 h2 Bg2 Rh4 Bd2 c3 Re3 c2 Ba5 Re1 Rg3 Nd7 Bb6 Nh6 g8B Bd2 Re3 c1R Ba7 Ba6 Ng3 Nc2 Nh1 a1R Na3 Nf6+ Kc6 Ra2 Bc4 Bc3 Re4 d2 Bd3 Nh7 e8B+ Nf7 Bd7 Nh6 Bc8 Bc4 Ba6 Qe8+ Kb7 Nd4 f5+ Kf7 f6 Kg6 f7 Nf3 Kc7 Rf4 Re7+ Ree4 Re5 Rf6 Re6 Qb5 Re8 Qd7+ Kb6 Qh3 Kc6 Qh5 Bb1 Be2 Bbd3 Bg7 f8N+ Kf7 Ng6 Bf8 Re5 Re8 Nh4 Ree6 Nf5 Rc2 Rb5 Kg6 Rb8 Rc1 Re8 Bb4+ Kb7 Rc7+ Kb6 Bc3 Kb5 Rd7 Kc6 Rc7+
K5Qr/r1bB3p/8/1nRP1n2/n3n2q/1bp1Pk2/B2BpqR1/2B2Rqn w - - 0 1 legal: proof: c4 d5 d4 dxc4 h4 f5 b4 e5 d5 g5 b5 gxh4 e3 f4 Nd2 f3 Ne2 fxe2 Nb3 a6 Nd4 axb5 Kd2 exd4 Qc2 b4 Qb3 Kf7 Qd1 Ke8 a4 Kf7 f4 Kf6 g4 b5 a5 c5 g5+ Kf5 g6 Ke4 f5 d3 g7 c3+ Ke1 c4 Kf2 c2 f6 c3 a6 h3 f7 h2 a7 d2 Ra3 b3 Ra5 b2 Rg1 h1N+ Kg2 b1Q Ra4+ b4 Ra2 b3 Rb2 Nh6 g8R Bd6 f8B Bc7 Ba3 Nc6 Rg7 Rb8 a8B Qe7 Bb7 Na7 Ba6 Qh4 Bc4 Nf5 Qe1 d1Q Bd2 c1N Qg3 Bd7 Ra2 Nd3 Bac1 b2 Ra5 Nb5 Ba2 Rb7 Qg5 Na7 Rc5 Ba4 Rf7 Qdc2 Qg8 Bb3 Rg7 Nb5 Rg6 Ke5 Kf3 Qd1 Rg7 Qde1 R7g2 Qhf2+ Kg4 Ke4 Kg5 Qa1 Kf6 b1N Ke6 Nb2 Kd7 Na4 Kc6 Kf3 Rg5 N1a3 Bh3 Nc4 Rf1 Ncd6 Rg6 Ne4 Rg2 Ng7 Bd7 Nf5 Rfg1 Qh4 Rf1+ Qef2 Ba3 Nfd6 Rb1 Nf5 Re1 Qd1 Bac1 Ra7 Reg1 Ra6+ Kb7 Rb6+ Ka8 Rb7 Rg7 Qdf1 R7g4 Q1g2 Rf1 Qg1 Rg2 Ra7#
n1k2K1B/2br2N1/4N3/B3Pnq1/pb1rp3/N2n2qp/1R3PBr/Nb1b4 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 bxa4 h4 g5 d4 gxh4 d5 f5 d6 c4 Qd3 cxd3 e5 exd6 Ra3 d5 Rc3 Nh6 Rc4 Ng8 Rf4 d4 Re4 fxe4 Kd2 a5 g4 h5 c4 d5 b5 Kd7 c5 h3 b6 h4 b7 a3 g5 a4 g6 h2 g7 a2 Ba3 a1B Nc3 Na6 b8B Bd6 Nge2 Nc7 Nf4 Nh6 g8N Nf5 Nd1 Qg5 Bg2 Ra7 Nh6 Ba6 c6+ Kc8 Ne3 Na8 Nc2 Rd7 Rb1 h1Q c7 Qh3 Rb2 Qhg3 Ba7 Bc4 Bb6 Ba2 Ba5 Bb1 B3b4 Qg6 Ne6 Q6g5+ Kd1 d2 Ke2 d1N Ba3 Nfe3 Nf5 d3+ Kd2 d4 Nfg7 Nc3 Bc5 Ne2 Ba3 Nf4 Bc5 Bf8 Be7 Nf5 Bf6 Rh7 Rb5 Bb2 Na1 Bba3 Rb2 Bfc5 Bh1 Bb6 Bg2 Kb7 c8N Bb4+ Kd1 d2 Nd6+ Kb8 Nc4 Kc8 Na3 Nd3 Ke2 d1R Ne8 h3 Bh8 Rh1 N8g7 Bc7 Rb3 Be7 Rb7 Rh2 Rb2 Nf4+ Kd2 d3 Kc3 d2+ Kc4 d1B Kb5 Rd2 Kc6 Nd3 Kd5 Bb4 Kc6 Kb8 Kd7 Kb7 Ke8 Kc8 Nh5 Rd7 Nhg7 Nc5 Kf8 R2d5 Bb6 Rd4 Ba5 Nd3+
Nq4r1/b1n3Rp/3r2p1/6bq/bP5B/1N1P1q2/2N3Rp/nk1KRqnR w - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 e5 g4 b5 h5 bxa4 g5 e4 d3 e3 Qd2 g6 Bg2 exd2+ Kf1 gxh5 g6 h4 g7 Bb7 Be4 Bc8 Bg6 fxg6 e4 Kf7 Ke2 Ke6 b4 Ke5 f4+ Kd4 e5 d1Q+ Kf2 c5 e6 a5 f5 h3 f6 h2 e7 a3 e8N c3 f7 a2 Bh6 c4 Bc1 a4 Nd6 c2 Ba3 c1Q Ne8 c3 Nc7 c2 Nd2 Kc3 Nc4 Nf6 g8R Ne4+ Kg2 Qf4 Nd2 c1B Ndf3 Kc2 Na6 Nc3 Kf2 Bc5+ Kg2 Ba7 f8R Ne2 Bb2 a3 Nd2 Bd7 Rf5 Ba4 Rg7 Rg8 Nc7 Na6 Bf6 Qb8 Ngf3 Qe4 Rb1 a1N Nb3 a2 Bh4 Bg5 Re1 Rd8 Kf1 Rd6 Rc1+ Kb2 Nfd4 Qg4 Rf2 Qf3 Nc2 Qh5 Nd5 Nc7 Nb6 Nd4 Nd7 Qdf3 Nb6 Ne2 Rcd1 Qbb7 Rc1 Rg8 Na8 Qb6 Red1 Qb8 Ke1 Bd8 Kd2 Be7 Rdf1 Bd8 Rce1 Bg5+ Kd1 Kb1 Nbd4 Nb3 Rh1 a1Q Nb5 Qaf6 Rg2 Na1 Nd4 Qf1 Nb3 Q6f2 Nc1 Qff3 Nb3 Ng1+
1nR5/pbR3P1/3Kn3/Npn1pBk1/2b3n1/1r2bqR1/NP2nn2/3N1Nr1 w - - 0 1 legal: proof: d4 f5 e4 fxe4 g4 c5 f4 cxd4 a4 g5 a5 h6 f5 Qxa5+ Bd2 Qa3 Bf4 Qa2 Qf3 Qd5 Qg2 gxf4 g5 Qb3 g6 Qa2 Qg5 hxg5 Ke2 d5 c4 b5 h4 e5 f6 g4 c5 d3+ Kf2 g3+ Kg2 d2 c6 d1N h5 e3 Kf3 g2 h6 d4 Ke4 f3 f7+ Ke7 h7 Kf6 c7 d3 Rh5 d2 Bc4 f2 Kd5 f1B Rg5 e2 Nf3 e1N Nh2 g1N Rg3 Bh6 f8N Nh3 Kd6 Ng5 Ne6 Nf2 Nc3 d1N Rc1 Bb7 c8R Qa3+ Nc5 Ned3 Na2 Nc3 Be6 Ne2 Bf5 Ne6 g7 Be3 Rc3 Nh6 Rc4 Qb3 Na4 Ndc5 N4c3 Nhg4 Nd1 Kg5 Rc1 Rf8 h8N Rf6 Ng6 Qa3 Bb1 Rf3 Bf5 Qb3 Ne7 Qa3 Rh3 Rg3 Nc6 Rg1 Rg3 Qd3+ Nd4 Qe4 Nb3 Qf3 Bb1 Nc6 Rc7 Rc8 Na5 Nb8 Bg6 Rf8 Rc2 Rf4 Bf5 Rb4 Rc1 Rb3 Rc8 N2f4 Rc3 Bd3 Nf1 Ne2 Rc7 Ncd7 R3c5 Bc4 R5c6 Ndc5 Rc8 Kh5 R6c7 Kg5
2K3nN/2B2pR1/B3kn2/1r3n1q/Pbn1rB2/2R1PR2/p3p1qn/5nBb w - - 0 1 illegal: No proof kernel
6B1/1kprppb1/4N3/2nqPrn1/2q1B2R/2B1B1Nr/p1bN2Pb/K4q2 w - - 0 1 legal: proof: f4 d5 h4 g5 c4 dxc4 h5 a5 h6 Qd6 Na3 gxf4 Nb1 Qxh6 Rh4 Qh5 Rh1 Qh2 a4 b6 b4 Bg7 Qb3 Bh6 b5 Bg7 Qb4 axb4 a5 Bh6 a6 Bf8 Ra5 bxa5 Kd1 Kd7 Kc2 h5 Kb2 h4 e4 a4 d4 b3 d5 f3 b6 c3+ Ka1 c2 a7 h3 b7 a3 e5 a2 d6 Kc6 d7 f2 Nf3 Rh5 Nc3 Qf4 Ng5 h2 Bc4 f1Q Be2 Bg7 Kb2 Na6 Nb1 Qc4 Rg1 h1R Bd3 Nf6 Be3 c1B+ Ka1 Ne4 Nd2 R1h3 Rh1 Nac5 d8N+ Kb6 Bd4 Bf5 Nde6 Rd8 b8B Kb7 Bc3 Rd7 Bc2 Qfd3 Bb1 Qdd5 a8B+ Ka6 Ba7 Bh7 Ngf3 Rf5 Nh2 Ng5 Nhf1 Bg6 Ng3 Bh7 Nf3 Bf4 Nd2 Bg6 Nge4 Bh2 Ng3 Rf2 Bb6 Bc2 Bc6 Rf5 Ba7 Qdd3 Be4 Qdd5 Bb6 Kb7 Ba7 Na6 Bf2 Nc5 Be3 Rf2 Bh7 Rf5 Bg8 Bd3 Bg1 Rh7 Ne2 Bf4 Rh5 Bh2 Be3 Rh6 Bc2 Rh8 Bd1 Bc2 Ng3 Rh6 Bf3 Rh7 Be4 Rh6 Kb2 Rh7 Ka3 b2 Rh6 b1Q Rh3 Qbf1 Kb2 Qfd3 Ka1 Rh5 Rh4 Rh8 Rg4 Rh3 Rh4 Qf1+
r1q3K1/1BNPq1P1/1n3Bq1/1Bp3QN/B2n4/r3p3/pb1p1r2/1kN1qb2 w - - 0 1 illegal: No possible last move, all moves rejected
3Bn1n1/1N2pKb1/2bR1P2/6p1/k1r1n1R1/1R2rpp1/1prN2NP/2N1q2b w - - 0 1 illegal: No proof kernel
R2n3r/r1qQ1Qb1/1p4Q1/5P2/pb1P1K1k/qb1Q4/n2pbp1N/2R4N w - - 0 1 illegal: No proof kernel
1b1r1q1q/1n5R/p1B3R1/Q3Qbbn/RP6/2Br2b1/R1Pr2Kn/1r1kb3 w - - 0 1 legal: proof: d4 b5 g4 g5 f4 f5 e4 fxe4 a4 bxa4 f5 c5 Nh3 cxd4 Nd2 h6 Nf4 gxf4 Nf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 Kf2 Kf7 b4 e5 h4 d5 g6+ Kf6 h5 Kg5 g7 g3+ Kg2 a3 f6 d3 f7 a6 h6 e3 h7 f3+ Kg1 Kf4 Rh5 f2+ Kg2 d4 Bb2 a2 Rh3 e2 Ba3 Ke3 Qc1+ d2 Qd1 d3 Bb2 e4 Rb1 a1Q Rh6 Nf6 g8Q Bd6 f8R Nh5 Qg4 Nc6 Kh3 g2 Rg6 g1B Rc1 Na5 Be5 Nb7 Re8 e1B Be2 f1N Bf3 Bg3 Bh1 Nh2 Qf1 d1R Rgg8 Kd2 Kg2 e3 Rg6 e2 Qgf5 Be3 Kh3 Bg5 Bc6 Rg8 Qf3 e1B h8R Qb2 Ra1 Rb1 Ra2 Kc1 Q3g4 d2 Bg7 d1R Qd4 Rd2 Rh7 Kd1 Re3 Re8 Rc3 Re3 Rca3 Red3 Ra4 Qf8 Qb6 Bd7 Qa5 Rd8 Qe6 Bb8 Be5 Bgf2+ Kg2 Qa1 Qe7 Bf5 Bh8 Qag7 Qec5 Qgg8 Bc3 Qh8 Qe5 Bg3+
2r3Q1/Pbb4n/1qb4N/p3N3/rq1N1b1N/2qPBn2/Q1r1K3/rB2n2k w - - 0 1 legal: proof: g4 a5 b4 e5 a4 g5 h4 gxh4 f4 exf4 c4 d5 Rh3 dxc4 Rb3 b6 b5 Nc6 Rb4 axb4 a5 Nb8 a6 Ne7 Ra4 Ng8 Ra5 bxa5 e4 Ke7 a7 Kd6 g5 Ke5 b6 h5 d3 c5 b7 f5 g6 f3 g7 f4 Qb3 h3 Qd1 h2 Qd2 h1B Qe2 h4 Kf2 c3 Qe1 h3 Bg2 c4 Ne2 c2 Bb2+ c3 Qg1 c1R Nd2 h2 Ba3 c2 Bh3 b3 Qg4 b2 Qh4 b1Q Nb3 Nf6 g8N Nh7 Bg4 Qb6+ Ned4 Nc6 b8Q+ Bd6 Bd7 Bc7 Qd8 Bb7 Qdc8 Nb4 Bh3 Qb2 Qd8 Qc3 Qdc8 Bg2 Be6 h1R Qf8 Rh2 Nf6 Ra1 Bd5 c1B Qh6 Nc2 Nd2 Ne1 Qg8 Rc8 Bc5 Bh1+ Kf1 f2 Ke2 Bc6 Qh4 f1N+ Qf2 Bb7 Ba2 f3+ Kd1 Kf4 e5 Rh4 e6 Nh2 e7 Qbb4 Qfg2 f2 e8N f1Q Nc4 Nhf3 Ng7 Qf2 Ne5 Qg1 Qe2 Kg3 Nfg4 Bf4+ Bb1 Rh2 Qea2 Rc2 Nh6 Kh2 Ngf5 Bg2 Nh4 Kh1 Nb5 Qgd4 Bb6 Qdd6 Be3 Qb6 Qgc4 Rhg8 Nd4 Rg4 Qg8 Nh2 Qd8 Bgc6 Qdg8 Nhf3 Qab3 Rca2 Qc2 Ra4 Qca2 Rg5 Ke2 Rf5 Nd7 Rc5 Ne5 Qca3 Qg7 Rc1 Qh8 Qac3 Qhg8 Rc2+
2Q1q1kb/1r1P1rb1/4Q1b1/3rq1R1/RKnnp2n/r5nN/Q1P1Q2b/1N6 w - - 0 1 legal: proof: h4 f5 b4 d5 e4 g5 Ke2 gxh4 b5 c5 b6 d4 Na3 fxe4 Bb2 c4 Bc1 c3 Nb1 d3+ Ke3 axb6 Rh2 b5 Be2 dxe2 Rh1 b4 Bb2 cxb2 a4 Kf7 f4 e1B g4 h5 d4 e5 g5 b5 a5 b3 f5 b4 a6 h3 a7 h2 d5 h4 d6 h3 f6 Qe8 Qd2 Bf5 d7 Bg7 Ne2 Ne7 g6+ Kg8 Qd4 Rh7 Nf4 Nbc6 Qb6 Bc3 Ne2 Nd4 Na3 b1Q Qd6 b2 Nc4 b3 Ng1 Qe1+ Ne2 b1N Ra4 b2 Qb8 Nd2 Rf1 h1N Na3 b1R Qb5 h2 Qb6 Ng3 Rg1 h1R Qa6 Rb7 Nb1 R1h5 Qb5 Bh8 g7 Ng6 Rg2 Nh4 Qd3 Qd1 Ng1 Qe1+ Qe2 Bg6 Nh3 Ba1 Rf2 Bc3 Rf5 Ba1 Rg5 Bc3 Na3 Qa1 Nb1 Nc4+ Kf2 Bb2 Ke1 e3 Kd1 e4 Ke1 Rab8 a8Q Rb3 Qa6 Rd3 Qb6 Ra3 Qb3 Rb7 Qa2 R7h6 Rg4 Rf5 Rg5 Rh5 Kd1 Bc3 Kc1 Qb2+ Kd1 Qb5 Kc1 Qbe5 f7+ Kh7 f8Q Rf7 Qe7 Kg8 Qe6 Ba1 Qf3 e2 Qfg4 e1B Qe2 Ba5 Kd1 Bc7 Ke1 Kh7 g8Q+ Kh6 Qf8+ Kh7 Qc5 Bb8 Qc8 Kg8 Qf3 Qc7 Qd5 Nb3 Qe6 Nf1 Rf5 Bag7 Qe2 Nd4 Kd1 Qc5 Kc1 Bh2 Re5 Nb6 Kb2 Ng3 Rf5 Nb3+ Re5 Nc4+ Kc3 Rg5 Qb6 Qc7 Kb4 Nd4 Rc5 Rd5 Rb5 Rd6 Rh5 Rd5 Rg5 Ra7 Qba6 Qe5 Qe6 Rb7+
n1kb4/q6b/1p2rBq1/Q1nP4/K1p1n1r1/n2N3B/2b1qNP1/1Q2q1BB w - - 0 1 illegal: Other
R2b1k2/1b2R1r1/Q3Kn1Q/6b1/b2N2n1/1rN1qPbn/pQp3P1/4nb1Q w - - 0 1 illegal: No proof kernel
2QN3r/1nn1p2r/1q2b1QK/1R1qp1r1/7k/NP1P2b1/4r1pN/1nRr3N w - - 0 1 illegal: No possible last move, all moves rejected
1N4QR/p3bP1Q/1r4qN/1nN2n2/Rpb1pkNK/4qP1p/3rr3/n1b5 w - - 0 1 illegal: Other
3NNQ2/p1B1Q3/PpNP1q1q/q5r1/p2Bp1pk/Kr4nn/2b5/b1q2N2 w - - 0 1 legal: proof: e4 f5 g4 fxe4 b4 b5 a4 h5 a5 hxg4 Ra4 bxa4 b5 Rh5 Be2 Rh4 Bf1 Rh8 c4 d5 h4 Rh6 b6 Qd7 c5 Qd6 b7 Rh8 Bc4 dxc4 Rh3 Qd5 Rb3 Qd8 Rb6 cxb6 f4 Kf7 d4 Kf6 Kd2 e5 Kc3 g5 Kb2 c3+ Ka3 e3 a6 c2 f5 e2 d5 e1Q d6 g3 h5 g4 h6 g2 h7 Nh6 c6 Qa5 c7 Bg7 Bf4 Nd7 b8B Nf8 Nd2 Ng6 Ngf3 g1Q Nh4 Qh1 Be3 Nf4 Qe2 Kg5 f6 Bf5 f7 Qf6 Bd4 Nh3 c8N Qh2 f8Q c1Q+ Ka2 Kh5 Ne7 Bc2 Nf1 Nf5 Bc7 Ng3 Nc6 Re8 Qe4 Rg8 h8N Qhd2 Qe1 Qdh6 Nf5 e4 Nf7 Re5 Nfd8 Rb5 Qc3 Bh8 Ng7+ Kh4 Ne8 Rb2+ Ka3 Rg5 Qc5 Bg7 Qe5 Qf3+ Bc3 Rb4+ Ka2 Qf2 Qe6 Bd4 Qee7 Qff6 Bd2 Rb1 Be3 Ba1 Bd4 Rb2+ Ka3 Rb3+
1b3n1Q/q1k4q/rb3PQ1/4N2N/q1b2B1r/1Pp4p/Qr5r/nK1Q3Q w - - 0 1 legal: proof: c4 a5 e4 d5 b3 dxc4 e5 a4 a3 b5 Ra2 b4 axb4 a3 e6 fxe6 b5 e5 Rb2 e4 Rc2 Be6 Ra2 Bc8 g4 g5 h4 Nh6 h5 Ng8 Rb2 axb2 Rh4 gxh4 g5 Qd3 g6 Qc3 g7 Qe5 Bh3 Qd5 Bf5 Qd8 Bg6+ hxg6 f4 Kd7 d4 c5 Kd2 e5 Kc2 e3 d5 e4 d6 c3 b6 c4 f5 g5 b7 h3 f6 e2 h6 e1Q h7 e3 Qf3 e2 Qh1 g4 Qf3 g3 Qd5 g2 Qf3 Ne7 g8Q Nbc6 b8Q Ba6 Qe3 Qh4 Qf2 e1Q Qgg3 Qe3 Qb6 Ng6 Qff3 Qc7 Qc5 Nd4+ Kd1 Nc2 Qb6 Na1 Ne2 g1B Qb4 Qea7 Qfg2 Bb6 Na3 b1R Qh1 Rb2 Bf4 c2+ Kc1 Kd8 d7 Bd6 Qg4 Nf8 Qa5 Qc6 Qgg1 Bb8 Qg6 Qa4 Ng3 Qh6 Nh5 Qg7 Nb5 Qh6 Nd6 Kc7 Be3 Qg7 Nf7 Qg8 Ne5 Qf7 Bf4 Qg8 Kd2 c1R+ Qc2 Rd1+ Kc3 Rd2 Qg6 Qb5 Qa2 Rh2 Qhb1 Qa4 d8Q+ Kb7 Qdd1 Kc7 Qg2 Qg7 Qbc2 Qg6 Kd2 c3+ Kc1 Bc4 Qgh1 Qb7 Qcg2 Ra6 Qgg1 Qd3 Qg3 Qa7 Qg6 Rg8 h8Q Qf5 Qgg2 Rg4 Qe4 Qh7 Qg6 Rbd2 Kb1 Rh4 Qde1 Rdg2 Qd1 Rb2+
5b2/1N5p/2Q3pp/1n2r2r/qn2Qq2/B1KQpnP1/bQBrPk2/Q6r w - - 0 2 legal: proof: c4 c5 b4 cxb4 c5 d5 Na3 a5 Nc4 dxc4 h4 Nd7 h5 Nb8 h6 gxh6 Rb1 Nd7 Rh4 Nb8 Rg4 a4 Rg6 fxg6 Rb3 axb3 a3 Qd7 a4 Qd8 d4 Kd7 Kd2 Kc6 f4 Kd5 g3 Ke4 d5 e5 c6 b5 f5 b2 a5 b1R d6 c3+ Kc2 Qh4 d7 Na6 d8Q Be6 c7 Ne7 c8Q Nd5 f6 Nac7 Bf4 Rb2+ Kc1 b3 a6 b4 a7 c2 Kd2 c1Q+ Ke1 Nb5 f7 Rd2 Nh3 b2 Qc6 b1R Nf2+ Kd4 Qdd7 b3 Ne4 b2 Nc5 e4 Bd6 Ke3 Bg2 Nb4 Nb7 Ba2 Qe7 Rb8 a8Q Qc2 Bh3 Qf4 Bf5 Qa4 Qe6 Ra1 Qdc1 b1N Qb2 Re8 Qec4 Re5 Qaa6 Nd5 Ba3 Nb4 Qcc2 Rdd5 Qcc1+ Nd2 Qcb1 Bg7 f8Q Rc5 Qfa8 Rd8 Q6a7 Bf8 Qa5 Rdd5 Q8d8 Rc2 Kd1 Rdc5 Qd3+ Kf2 Qaa6 e3 Qce4 Rcd5 Qc6 Nf3 Q1c1 Rb1 Qa1 Rb3 Qcb2 Rcc5 Be6 Rd8 Bc4 Rc3+ Bb3 Rh5 Bc2 Rce5 Kc1 Rd6 Qbb1 Rcc5 Kb2 Rh1 Qc1 Reh5 Qcd2 Rce5 Qdc1 Nc7 Kc3 Rd8 Qcb2 Rdd5 Qdc4 Rd2 Qcd3 Nb5+
1n2B2n/1p1Q2QP/qNN2bqn/n3N1N1/p3nK2/3r1r2/4PQ1q/1k2q3 w - - 0 1 illegal: No proof kernel
6Rb/4k1n1/3pq1qq/NP1R1n2/1q3r2/P1pr1p2/r1K2RQQ/3rQ2Q w - - 0 1 legal: proof: h4 b5 f4 e5 b3 exf4 h5 a5 h6 a4 Nc3 a3 Bb2 axb2 Nb1 gxh6 Rh3 h5 Rh1 h4 c4 c6 e3 b4 Nc3 bxc3 c5 Bg7 Bc4 Bf8 d3 Ba6 Bd5 Bc4 dxc4 cxd5 g4 b1Q b4 f5 c6 h5 g5 h3 g6 d6 c7 h2 c8R h4 e4 h3 e5 d4 c5 d3 g7 d2+ Ke2 f3+ Ke3 f4+ Kd4 f2 c6 f1R b5 Ke7 e6 Qa5 c7 Na6 Qe1 Qg6 Nf3 d1R+ Nd2 Nh6 g8Q Nf5+ Kd3 Nc5+ Kc2 Bg7 Nc4 Qb4 Na5 f3 Rb8 Rd3 c8Q Rh4 Rd1 Rf4 Rd2 Ra7 Rf2 Bh8 Qd2 Rb1 Rd1 h1Q Qe1 Qhg2 Qh1 h2 Qh7+ Qf7 Qcg8 Qg6 Qgg7 Ra6 Rg8 Ra8 Rdd2 Rd1 Qh3 Ra6 Qgh6 Qe8 Q1g2 h1Q Qhh2 Qg1 Q6h3 Qh6 Qgh1 Qgg6 Q3g2 Kf6 e7 Ne6 Qh2g1 Qc8 e8Q Neg7 Qee1 Qe6 Qg1h2 Ke7 Rde2 Rc6 Re5 Rcc4 Rd5 Rce4 Qef1 Ree1 a3 Ra1 Qfg1 Red1 Qe1 Ra2#
4qQnQ/5pn1/1r2q3/1bB1r1rQ/3n1P1r/1P1Br1bq/Bk4K1/3QN1n1 w - - 0 1 legal: proof: a4 g5 d4 e5 a5 c5 a6 c4 Nc3 exd4 Ra5 g4 Ra3 bxa6 Rb3 a5 Nb1 a4 Rd3 cxd3 h4 h5 f4 Qa5+ Nd2 Qd8 Ndf3 Qb6 g3 Qd8 Rh2 Qb6 Rg2 gxf3 g4 Qc7 g5 Qd8 Rg4 hxg4 Kf2 Ke7 e4 Ke6 c4 a5 c5 d5 b3 a3 c6 d2 g6 a2 g7 a1Q c7 a4 e5 d3 h5 g3+ Ke3 a3 h6 a2 h7 g2 Kf2 d4 Ba3 Kd5 e6 Be7 Qe2 d1N+ Kg3 f2 Qb2 d2 Bc5 d3 Bd6 Ra6 Kh3 Rb6 Be5 Ba6 c8Q Ne3 Qb1 d1R Nf3 g1N+ Kg3 d2 Bg2 f1Q Qg6 Bh4+ Kh2 Nf5 e7 Bg3+ Kh1 Nc6 e8Q Bb5 Bf6 Ncd4 Qc1 Re1 Qa3 d1R Be7 Re5 Qc1 Rd3 Bc5 Rde3 Qf8 Qe8 Qd1 Qb1 Bh3 a1R Qh5 Ra5 Ne1 Qb2 Bg4 Qbe2 Bh3 Ke4 Bg4 Qc4 Be2 Qce6 Bd3+ Kd5 Bb1 Qd3 Ba2 Qc3 Kg2 Ke4 Nf3 Qd3 Qc1 Qc3 Qa1 Kd3 Qf1+ Kc2 Qd1+ Kb2 Ne1 Nf6 Qd6 Rf8 g8B Ng7 h8Q Qd3 Bh7 Ng8 Qh3 Qdf5 Qh2 Qh3+ Kh1+ Be2 Qc6 Qh4 Qd6 Ne7 Qg8 Rh5 Bb4 Rhg5 Kg2 Rae5 Bc5 Bb5 Bd3 Qhh6 Qh7 Rh8 Qh1 Ng8 Qf8 Qh5 Qg6 Rh6 Qh7 Qhg4 Qh8 Rh7 Qh6 Qgf5 Qg6 Rh4 Qgh5 Qh3+
Q1K1Q2q/1nr4R/b1p3Rp/n7/1R1n3P/b1n3rr/2R1rn1P/1b1kB1Q1 w - - 0 1 illegal: Other
3rqbbR/4kqq1/1QrpP1b1/n2Rn2p/r1Q5/K3Q2P/1Q4N1/3Rqr2 w - - 0 1 legal: proof: d4 e5 Kd2 exd4 b4 f5 b5 c5 b6 d3 Kc3 d2 Kd3 axb6 Bb2 b5 Be5 b4 Bd4 cxd4 f4 g6 e4 Bd6 Ke2 Ra4 e5 Bf8 Nc3 Ra3 Kf2 Ra8 Bd3 Qa5 Kf1 Qd8 Be4 fxe4 f5 g5 Nd5 Ne7 Nf4 gxf4 Kf2 Ng8 Ke2 Ra5 Kf1 Ra8 c4 h5 Ke2 b5 g4 b3 a4 d6 g5 b2 a5 b1R f6 b4 c5 b3 g6 b2 a6 e3 Kd3 e2 Kc2 e1Q Kb3 f3 h3 f2 c6 f1R g7 d3 a7 Be6+ Ka3 Nh6 g8R Ng4 f7+ Ke7 c7 Qe8 c8Q Nc6 Qc1 d1Q Nf3 d2 Nh4 Na5 Q8c4 Rc8 a8Q Rc6 Qb8 Qf3+ Q1c3 d1Q Qb6 Qc2 Ng2 Qh7 Qce3 Qg7 Rh2 Bf5 e6 Ne5 Rh1 Bh7 Rg1 Qgg3 Rg5 Bg8 Rf5 Qg7 Ra2 Nd7 Rd5 Ne5 Ra1 Rd1 Rh1 Rd4 Rd1 b1B Rg1 Bg6 Qb2 Qgf6 Qb6 Bh6 Qb2 Qg7 f8Q+ Kd8 Qce2 B8h7 Ra1 Qg8 Rd1 Bc2 Qa6 Rb4 Qf4 Qeg6 Qa8+ Ke7 Qe4 Qff7 Nh4 Qgf6 Q4f4 Qb8 Rg8 Bcg6 Qa6 Qc8 Qfc4 Qd7 Rg7 Rd8 Ng2 Qe8 Rg8 Bf8 Qab5 Q6g7 Rh8 Bg8 Qbb6 Ra4+
1Nbb3R/RKQ1r1q1/7p/r2R4/qn5R/n3r2p/qQ1p1P1P/3Qn1nk w - - 0 1 legal: proof: e4 f5 d4 e5 b4 exd4 b5 g5 e5 c5 b6 c4 Bd3 cxd3 Nd2 axb6 Ba3 b5 Ne4 fxe4 Bc1 b4 Bf4 Bd6 Bg3 Bf8 Bh4 gxh4 Kd2 Kf7 c4 Kg6 a4 Kf5 g4+ Kf4 c5 d5 a5 b5 g5 e3+ Kc1 d2+ Kc2 d3+ Kb3 h6 g6 d4 g7 e2 c6 e1N e6 h3 c7 Nd7 e7 Ne5 e8Q Qe7 a6 Rh7 a7 Nf6 g8Q Qg7 Qe7 N5f3 Qc5 Be7 Ra6 Nd5 Qe2 d1R Qc6 d2 Qc1 d3 Ra2 Bd8 Qa1 Rc1 Qh8 d1Q+ Qc2 d2 Ra4 Kg4 Ne2 Ng1 Nd4 Kf4 Nc6 Kf3 Qe5 Kg2 Nb8 Qdg4 Qd1 Rc3+ Ka2 b3+ Ka3 Q4d7 Rh4 Re3 Qc3 b2 Kb3 b4 Kc4 b1Q Kc5 Nf6 Kb6 b3 Qb2 Qe8 Qg8 Qd7 Qc4 Qa2 Qf7 Qda4 Qe7 Bd7 Kb7 Nd5 c8R Nb4 Rc5 Bf5 Qc7 Bd7 Qc3 b2 Rd5 b1N Qb2 Na3 Nc6 Rc8 a8R Be6 Ra7 Ra8 Nb8 Bg4 Ra6 Bd7 Rf6 Ra5 Rf8 Ngf3 Rf1 Ng1 Rh8 Kh1 Qh5 Nf3 Ra1 Ne1 Qd1 Qg5 Rc1 Rhe7 Rc6 Qg4 Ra6 Qg7 Ra7 Bc8+
b1Nnr1NN/1B6/4Bn1q/2knq1q1/P5bN/1Pr3n1/n4K2/1N1Bb1n1 w - - 0 1 legal: proof: f4 e5 c4 exf4 Kf2 d5 cxd5 a5 Ke1 a4 b3 b5 Qc2 a3 Qb2 axb2 a4 b4 Ra2 Qg5 Ra3 Qd8 g4 bxa3 h4 g5 d3 f3 Bf4 h6 Rh2 Bd7 Rg2 gxf4 g5 Bh3 g6 Bc8 Rg5 hxg5 e4 Kd7 h5 Kd6 d4 f5 g7 c5 h6 g4 h7 a2 Bc4 a1Q Kf1 f2 Nh3 g3 Ke2 f1Q+ Kd2 f3 Ke3 g2 Ng5 g1N Bd3 f4+ Kd2 c4 Bc2 f2 Bd1 c3+ Kc2 Nc6 Nf3 Nf6 g8B Bg4 Be6 Bh6 Nh4 Re8 h8N Qe1 Kd3 f1N Be2 c2 Bd1 f3 e5+ Kc7 d6+ Kb6 d5 f2 d7 Ne3 d6 f1N Ng2 Ned5 Nh4 Qe7 d8N Bd2 d7 Kc5 Ndf7 Rac8 d8N Ng3 Nd6 Qg7 Nd8f7 Qg5 Nh6 Nd8 Ng8 c1N+ Kc2 Rc7 Nc8 Na2 Kd3 Qh6 Bf7 Rc6 e6 Qe5 e7 Qeg5 Be6 Rf8 e8B Rc7 Bc6 Re8 Na3 b1B+ Bc2 Kb4 Bb7 Rc3+ Kd4 Qb2 Bd1 Bd3 Ba8 Ba6 Bc6 Bb7 Nb1 Ba8 Bb7 Rc2+ Kd3 Kc5 Bd7 Qbe5 Be6 Rc1 Bf5 Nh3 Be6 Nge4 Bf3 Rc3+ Ke2 Ng1+ Kf1 Ng3+ Kf2 Qhg7 Be2 Q7h6 Bd1 Be1+
7R/bpBR1qb1/3n2q1/2B1P1B1/r3P1B1/4p2r/R4bqp/1KB1nb1k w - - 0 1 illegal: No proof kernel
qRr2R2/1r2nK2/1r2n1Pp/4br2/1n2p2N/r1N1qb1P/1N1R2N1/3N1k1b w - - 0 1 legal: proof: e4 e5 b4 g5 f4 c5 f5 a5 Bc4 axb4 Be6 c4 Kf1 c3 d4 exd4 e5 Ke7 Bf4 gxf4 Qd2 cxd2 Bc4 Qa5 e6 Qd8 Bb3 Kf6 e7 Kg7 Be6 fxe6 Nf3 Kf6 Ng1 Kf7 Kf2 Kf6 Kf3 Kg5 Ke4 Kh4 Ke5 d1B e8N b5 c4 d5 g4 b3 a4 d3 a5 f3 c5 d2 f6 d4 a6 d3 c6 f2 g5 f1R h3 Kg3 a7 Kf2 f7 h6 c7 b2 g6 b4 Ra4 b3 Nf3 Bd6+ Kd4 e5+ Kd5 Nd7 Ke6 Ne7 f8R Bb7 c8N Nc5+ Kf6 Ne6 Ng5 Bdf3 Rh4 d1Q Kf7 d2 Nb6 Qe2 Nc4 d1N Nc7 Ne3 Rd4 N3d5 Nb5 Nb4 N1c3 b1R Nb2 Qe3 Ncd1+ Kg2 Nbc3 Rf2 Rh2+ Kf1 Rd2 Bbd5 Nd3 b2 Nf4 Bh1 Rg2 Bf3 Rg4 Rc8 a8N e4 Rg3 Qa5 Ng2 Be5 Nb6 Qa8 Nba4 Rg8 Nh4 Ra1 Ng2 b1R Nab2 Rc6 Rb8 Ra3 Rg4 Rgc8 Rf4 Rb6 Rf6 Bh5 Nf3 Bg4 Nfh4 Rf5 Rd7 Bf3 Rd8 Rc1 Rd2 Rc7 Ke8 Rcb7 Rf8 Rg5 Kf7 Rh5 Nb5 Rc8 Nbc3 Rf5+
2BrN2n/3N2K1/pN2NbB1/qr6/PBN2r1r/1ppb3P/1p5p/1b1n3k w - - 0 1 legal: proof: f4 c5 c4 d5 b4 cxb4 c5 e5 Qb3 exf4 Qc4 dxc4 a4 g5 Ra3 h5 Rh3 g4 Rh4 Ke7 h3 Ke8 Rh2 g3 Rg4 gxh2 Rh4 Nd7 g4 Nb8 g5 Kd7 Rg4 hxg4 Na3 Ke7 Nb1 Ke8 Kf2 Ke7 d4 Ke6 e4 f5 e5 Kd5 c6 Ke4 g6 b5 c7 g3+ Kg2 c3 g7 a6 d5 b3 d6 f3+ Kh1 b4 e6 b2 e7 f4 e8B b3 d7 f2 Kg2 f3+ Kh1 Nh6 g8N Nc6 Bf7 Ne7 Be3 Ng4 Be6 Ng6 Bc5 Rh4 Bb4 Nh8 Na3 Bg7 Nc4 Ne3 Nf6+ Kf4 Bd3 f1B Bg4 f2 Nf3 Nd1 Bg6 Bd3 Kg2 f1R Ne8 Bf6 Nfe5 Rb8 Be6 Rb5 Bef5 Rf3 Bg4 Bb7 c8N Qa5 d8N Bbe4 Nd7 Bb1 N8b6 Bed3 Na3 Ke3 Ne6 Rf4 B4f5 Ke2 Nac4 Rd4 Nb8 Rd8 N8d7 Ke1 Kf3 Kf1 Bg4 g2 Kg3 Kg1 Kf4 Rh7 B4f5 Kh1 Kg4 Rf7 Kh5 g1R Kh6 Rf8 Kh7 Rg4 Kh6 Be7 Kg7 Rh4 Be4+ Rf3 Bb7 Bg5 Bc8 Rff4 Bc5 Be7 Bb4 Bf6+
Rnr2n1N/8/p1P2kr1/1Nq1RqNn/b3nP1b/rN3Np1/2K2b2/3N4 w - - 0 1 legal: proof: d4 c5 a4 b5 axb5 f5 e4 fxe4 Qd3 cxd4 c4 Ba6 Qb3 Bc8 Qc3 dxc3 f3 g5 Be3 g4 Bf2 g3 Kd1 gxf2 g4 h5 g5 Rh7 Bh3 Rh8 Bg4 hxg4 b4 Kf7 h4 f1N g6+ Kf6 c5 d5 b6 e5 g7 e3 b7 d4 b5 c2+ Kc1 d3 h5 d2+ Kb2 d1N+ Kb3 c1Q f4 e4 h6 e2 b6 e1B h7 e3 Nc3 e2 Ra3 Ng3 Nf3 Ne7 Rh5 Bf2 Re5 e1R c6 Qd7 Ra4 Qf5 Ra2 Rg8 h8N Nh5 Ra6 g3 Ra4 Nb2 Nd1 Nd3 Ra6 Qe3 Kc2 Ng6 Ra1 Be7 Ra2 Na6 b8N Be6 b7 Rc8 Ra4 Nf8 g8N+ Kg7 Nd7 Bh4 Raa5 Nb8 Ngf6 Nc5+ Ne4 Bc4 Ra6 Bb5 Ra2 Qd4 Ra4 Re3 Ra3 Rd3 Neg5 Ne4 Nc5 Ba4+ Nb3 Kf6 Ra2 Qb4 Ra1 Rd6 Ra2 Nbd7 b8N Qa5 Na6 Nb8 Nc7 Qc5+ Kb1 Rd7 Nb5 Rg7 Rd2 Rg6 Rd7 a6 Ra7 Rd8 Kb2 Rd3 Kb1 Nbd7 Kb2 Rc8 Ra8 Re3 Nbd2 Ra3 Nb3 Nb8 Kb1 Qb6 Kc2 Qc5+
4bb1b/2B4q/1r2n3/p3Nn2/rrP1BB1B/1BpN1qb1/b1P1k3/1nB4K w - - 0 1 illegal: Other
2q1NqN1/P1nbn3/5QrQ/kp2rb1q/4Q1rb/2P5/N2N4/r1N1b1K1 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 e4 c5 dxc5 f5 Ra3 Qe7 Rd3 Qd8 Rd4 exd4 g4 g5 f4 Ra7 h4 Ra6 e5 Ra8 Bd3 h6 Be4 fxe4 f5 h5 Bf4 gxf4 g5 Rh7 Rh3 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 b5 c6 d5 e6 g3+ Kf1 f3 c3 e3 c7 b3 g6 g2+ Ke1 e2 Kf2 b2 a5 d3 e7 Kd7 e8N Kc6 f6 e1B+ Ke3 d2 f7 f2 h5 f1Q h6 d4+ Ke4 d3 Ke3 Ne7 g7 Rg8 h7 Na6 h8Q Bd7 c8N Nc7 Qc1 d1Q a6 d2 a7 Qh5 Qh7 d1R Ne2 g1R Nd2 b1B Nb6 Rg4 Nd5 Bbf5 Nb4+ Kb6 Na2 Qc8 Qb1 Rb8 Qe4 Ra1 Qh6+ Ka5 Nec1 Rb6 Qf6 Re6 Qh6 Re5 Qf6 Rh8 g8N Rh7 Qh6 Rhg7 Qf6 R7g5 Qh6 Bg7 f8Q Bf6 Qfg7 Rg6 Qf8 Bfh4 Qf6 Qg1+ Ke2 Qc5 Kf1 Beg3 Kg2 Be1+ Kh1 Nc6 Kh2 Qf8 Kh1 Ne7 Kh2 Beg3+ Kg1 Be1+
2RR3Q/1b1br3/p1N2bq1/r3nB1P/1K1P2r1/q3kP2/1Bbn4/1bNr4 w - - 0 1 legal: proof: g4 b5 a4 bxa4 h4 g5 b4 axb3 e4 h5 c4 f5 c5 fxe4 c6 dxc6 Bb2 c5 Ra4 c4 Bc1 Qd5 Ra2 gxh4 Ra1 h3 Bg2 h4 Bf1 Qh5 gxh5 Ba6 Bd3 Bb7 Bf1 Bc8 d4 Kf7 Kd2 Ke6 Kc3 Kf5 Na3 c5 Qd3 e5 Bg2 h2 Bb2 Kf4 Rd1 e3 Ba1 e4 Qb1 e2 Nb5 e1R Bf1 h3 Nd6 e3 Ne8 e2 Nd6 b2 Nf5 Bg7 Bg2 Bd7 Qd3 b1B Ne3 Nc6 Qg6 Bf6 Qg7 Ne5 Rd3 Rd1 Qf8 e1R Kb2 c3+ Ka3 c4 Be4 c2 Qc8 c1Q+ Bb2 c3 Qc4 c2 Qb4 Rh6 Bc6 Rg6 Bb5 Rg4 Qf8 Qd2 Qd8 c1Q Rc3 Qdc2 Rc7 Qg6 Ne2+ Kf3 Rg1 h1B Rc6 h2 Nd5 Bg2 Kb3 h1B Bd3 Qc5 Ka4 Qa3+ Kb5 Bf1 Nc1 Be2 Ne7 Kf4 Bc4 Bed3 Qc8 Bd5 f3 Bdc2 Bd3 Ke3 Bf5 Re2 Qa6 Bde4 Qa4 Ree1 Ka5 Re2 Rc8 Bb7 Rg2 a6 Nc6 Rb8 Rc7 Re8 Rc8 Re7 Rg3 Bh4 Rg2 Nf6 Rd8 Ne4 Rf2 Qa2 Kb4 Nd2 Qb5 Ree1 Qc4 Reg1 Qg8 Bf6 Qh8 Rg5 Rf1 R1g4 Re1+ Kf4 Re3 Qa1 Ra3 Qa2 Ra5 Ke3 Rc5 Qa1 Nb8 Qa2 Rcc8 Qa1 Nc6 Qa2 Nb3 Qa3+ Kc3 Nf1 Be6 Nd3 Kc4 Ra5 Bf5 Nd2+ Kc3 Qa2 Nc1 Ne5 Kb4 Qa3+
r5Q1/2n3Rq/1B1q3P/1PrbN1qr/r3k1Pr/n2pN3/3RBb2/5nbK w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Ra3 g4 Qd3 exf6 Ra2 f5 Ra1 f4 Qf3 gxf3 g4 h5 e3 h4 b4 Bc5 Ra3 Bb6 Rd3 Bc5 Rd2 Be7 Rg2 Bf8 Rg3 hxg3 h4 Ke7 c4 Kd6 c5+ Kd5 c6 a5 c7 f5 h5 g2 Kf2 d3 b5 d2 Ba3 d1Q Bc1 a3 Rh2 a4 Ne2 a2 Kg1 a1Q Bd2 a3 Rh1 f2+ Kh2 g1B+ Kg2 a2 Nd4 f3+ Kh3 f4 Nc6 Bb7 c8Q Bc5 Bc1 Qg7 Rh2 a1R Bd3 f1R Bh7 f2 Kg2 f3+ Kh1 Qdg5 Qf8 R1a4 Qf6 Ne7 Nd2 Na6 Bb2 Nf5 Nd8 Nd4 Qg6 Nc2 Nf7 Na3 Ne5 Nc7 Ndc4 Qd2 Rg2 Rc1 Bd4 f1N Rh2 Qd3 Rd2 f2 Qe8 Ba7 Bb6 d6 Bf5 Qh7 Qf8 Qd4 Bd3 Bc6 Be2 Ke4 Qd8 d5 Qg8 Qc5 Na5 d4 Nac4 d3 h6 Qd6 Nb2 Rc5 Nbc4 Bd5 Rc2 Be6 Rd2 Kd5 e4+ Kd4 Qf8 Rg8 Ne3 Bd5 Qf7 Rg6 Qg8 Rf6 Ng6 Rf3 e5 Ke4 e6 Rg3 e7 Rh3+ Kg2 Rh4 Ne5 Nh2 e8R f1R Kh1 Rf5 Re7 Nf1+ Kg2 Qf4 Rd7 Rfh5 Rg7 Qg5 Nf5 Nh2 Ba5 Rc6 Kh1 Baf2 Bb6 Rc5 Ne3 Nf1+
q7/NPn1B1r1/4nPNP/b1B1pb2/k2q4/2Qb1rbR/3n2rR/1K2b2b w - - 0 1 illegal: No possible last move
3N2q1/1rk1n3/P4K1R/1p3bqr/n1B1PP2/qRN1q2Q/r1b1b3/q2B2b1 w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 b4 gxh4 g5 c5 g6 a5 g7 axb4 Nc3 f6 Bg5 fxg5 Nb1 g4 Bh3 Ra6 Kf1 Ra8 Kg2 Nh6 g8Q c4 Qg5 c3 Qgd2 cxd2 Kh2 Be7 Bf1 Bf8 Kg2 Ng8 c4 h5 a4 d5 e4 Kd7 f4 g3 Kf3 g2 a5 h3 c5 d3 c6+ Kc7 Rh2 h4 Be2 d4 Qa4 d1Q Qa2 b3 Nc3 b2 Qb1 d2 Ra3 d3 Qa1 b1R Qa2 Qa4 Qb3 d1B Ra2 d2 Ra1 Qa3 Qa4 Bc2 Qc4 d1B Qb3 Rh5 Rh1 h2 Qe6 h3 Kg4 Qg5+ Kf3 Na6 Ke3 Ne7 Kd4 Nc5 Nf3 Na4 Bc4 Be2 Ne5 b6 Qh6 Bf5 Nf7 g1Q+ Ke5 Qe3 Nd8 Rb3 Rhb1 h1Q Qh8 Rb4 Rb3 Qhg2 Rh1 h2 Qh7 Qg8 Kf6 Ra7 Qh8 b5 a6 Rb7 Bd5 Rd4 Bc4 Rd1 Qh6 Ra1 Qh7 Ra2 Qh8 Kb6 c7 Q2g4 c8B Kc7 Qg7 Qgg1 Qg4 Qgg3 Qh3 Qg2 Rd1 h1Q Rd6 Qa1 Bd7 Bh7 Bg4 Bf5 Bf3 Q2g5+ Ke5 Nd5 Rh6 Bc5 Bg4 Ne7 Bf3 Qd2 Bg4 Bg1 Bf3 Qg3 Kf6 Qe3 Bg4 Bed3 Bd1 Be2 Qf1 Q3g4 Qh3 Q4g5+
b5K1/1Q2npN1/1q2r3/Bn3P1n/2P1NnB1/3bP3/RRr2qn1/b1kr2r1 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 bxa3 h4 c5 d5 g5 d6 gxh4 Nd2 c4 Nb1 exd6 Bd2 d5 Bc1 d4 Qd3 cxd3 Kd2 Ke7 c4 Ke6 g4 Ke5 f4+ Ke4 f5 b5 g5 d5 g6 h5 g7 b4 Rh2 h3 Nf3 h4 Ne1 a2 Ba3 b3 Rh1 h2 Nc2 h3 Bb4 b2 Ba3 Ne7 g8Q Na6 Rg1 h1Q Rg7 h2 Ne3 Qb6 Rg5 Qg2 Bd6 h1N Rg3 Bg7 Ba3 Nc5 Rg6 Qf2 Qf8 Bb7 Qg8 Re8 Rd6 Ne6 Nd1 Rh2 Bb4 Nf4 Rg6 Ng3 Bc5 Ba8 Rg4 Nh5 Na3 b1B Rg2 Bc2 Rb1 a1R Bb4 Bh8 Nb5 Be5 Kc1 d2+ Kb2 d3+ Ndc3+ Ke3 Nd4 d1R Ne6 d2 Ng7 d4 Ne4 Bd3 Kb3 Bf6 Rb2 Rac1 Qf8 Rh1 Rh2 Rc2 Bh3 Rdg1 Ra2 d1N Bg4 Nc3 Qh8 Nb5 Ba5 Rd1 Kb4 Rhg1 Qh6 Be5 Qc6 Bf6 Qb7 Be5 Ng5 Kd2 Ne4+ Kc1 Rh3 Neg6 Rh1 Re6 Rh2 Qd8 Kc5 Ne7 Nd6 Neg6 Kc6 Qb6+ Kd7 Ne7 Ke8 Be4 Kf8 d3 Qa6 d2 Qb7 Bd3 Ne4 Ba1 Rb2 Rde1 Rg2 d1N Rh2 Ne3 Ra2 N7d5 Kg8 Neg2 e3 Ne7+ Kh7 Qg3 Rh1 Kb1 Qd7 Qf2 Qb7 Rec1 Kh8 Rge1 Kh7 Ree2 Rd1 Re1 Kh8 Rg1 Re1 Rd1 Re2 Rc3 Reb2+ Kc1 Kh7 Rc2 Kh8 Neg6+ Kg8 Ne7+
3r4/1NnRnB2/3b1kq1/1RP1q1r1/BP4P1/np1b3p/pQ3b2/q3bN1K w - - 0 1 legal: proof: h4 a5 d4 c5 e4 cxd4 e5 g5 e6 gxh4 Bh6 fxe6 Be3 e5 Bc1 e4 Qd3 Kf7 b4 Ke8 Qb3 Qc7 Bf4 Qd8 Bc7 a4 Ba5 axb3 a4 Bh6 Bc7 Bf8 a5 Bg7 a6 Bf8 Ba5 b6 Rh2 bxa5 Rh3 Nc6 Rh1 Nb8 c4 Kf7 f4 e5 Kf2 d5 g4 h5 Kg2 h3+ Kh2 a4 c5 d3 a7 h4 f5 a3 f6 d2 Ra2 d1N Ba6 e3 Rd2 e2 Bc4 e1B Rd3 a2 Rg3 e4 Rd3 e3 Bb5 e2 Nd2 d4 Ne4 Qd6+ Rg3 d3 Nf2 d2 Bd7 Ba6 Bc6 Nb2 Ba4 d1Q Ne4 Bf2 Nf3 e1B Rf1 Q1d4 Nfd2 Bd3 Kh1 h2 Rg2 Kg6 f7 Nc4 Rgg1 Q6e5 Nd6 Kf6 Nb7 Bd6 Rg3 Na6 f8Q+ Kg6 Rh3 Rd8 a8B Na3 Rg3 Qa1 Qf6+ Kh7 Re3 Nc7 Rg1 Ne7 Nf1 Rhg8 Rgg3 Qg5 Re6 Qg6 Qb2 Kh6 Rf3 Kg5 Rf7 Rg7 Qb1 Qe5 Qb2 Rgg8 Rg7 Ned5 Re8 Kf6 Rd7 Ne7 Na5 Qf5 Bd5 Rg5 Bf7 Qh7 Rh8 Qg6 Rh7 Ncb5 Rb7 Nc7 Rb5 Rg8 Kg2 Rd8 Nb7 h3+ Kf3 Rh8 Be6 Nf5 Ng3 Ra8 Rd7 Bd2 Bd5 Ne7 Bf7 Be4+ Ke2 Rd8 Kf1 h1Q+ Ke2 Qa1 Nf1 Bb1+ Kf3 Bfe3 Ke2 Bd3+ Kf3 Bf4 Kf2 Be1+ Kg1 Bfg3 Kh1 Bgf2
R1Bknr1B/6K1/r2p4/Nb2Pp2/5QnP/3b2b1/1pnPN3/2nrqR1r w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 hxg4 c5 a5 c6 axb4 Qc2 b3 Nf3 Nxc6 Ng1 b2 Qf5 Nb8 Qh7 Nh6 Qg8 Nxg8 Kf2 b5 h4 f5 e4 g5 a4 c5 a5 b4 a6 f3 Ke3 b3 a7 c4 Kd4 c3 Ke5 f2 Bd3 f1B Ba6 g3 Nh3 g4 Bd3 g2 Ra6 g1R Ra2 c2 Bb5 g3 Ng5 g2 Rh2 Ba6 Nh7 Nc6+ Kd5 Rh1 Ng5 g1R Nf7 Bd6 Nc3 b1N Rf2 Ne5 Ne2 Na3 Bb2 Ng4 Ne5 c1N Nc4 Nc2 Na5 Bg3 Rf3 Rh6 Bh8 b2 e5 Qc8 Bc6 Bb5 Bb7 Ra6 Ra4 Rb8 a8Q d6 Raa3 Qc7 Ke6 Kd8 Bc8 N8f6 Qe4 Ne8 Qf4 Qb6 Kf7 Qf2 Kg6 Qe1 Kh7 Bg2 Rf1 Be4 Rc3 Bed3 Rc7 Qf2 Ra7 Qe3 Ra8 Qe4 Rf2 Rd1 Rf1 Qe3 Kg8 Qf2 Kf7 Qe1 Kg8 Rb7 Kf8 Rf7+ Kg8 Rf8+ Kh7 Nef6+ Kg7 Ne8+
5K2/Nb1kB1RN/1Pb4Q/4p2p/4R1Pn/pp1n2b1/r4qPB/1rb2rn1 w - - 0 1 illegal: Other
1N1K2rq/R4pq1/2B3Pq/1B2Np1Q/1pnR1qn1/2b1r1k1/bq1P2Pp/8 w - - 0 1 illegal: Other
6B1/q2NnP1b/3bRK2/2n1Nn1P/Pq1p1qqk/3B4/1pQ1Nr2/4r1n1 w - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 e4 axb4 g4 h5 g5 f5 exf5 b3 g6 b2 Bh6 Rxh6 Ra3 Rh8 Rg3 Ra6 Rg4 hxg4 Bh3 Rxg6 Bg2 Ra6 Bf1 Ra8 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 b5 f4+ Kh4 c4 g5 c5 d5 f6 g3 f7 d3 c6 g4 h3 b4 c7 d4 f5 g2 f6 g3 Be2 d2 Bb5 b3 Qf1 d1N Nd2 b1Q Bc6 b2 Bd7 Qc1 Ne2 g1Q Qf2 Na6 Bg4 Ne3 Qe1 Nf5 Qd1 g2 Ne4 Qd7 Qd3 Nc5 Nd6 Qf4+ Kd5 e5 Qc2 Qd1 Re1 g1N Bf3 Qe7 Nc4 e4 Ne5 e3 Be4 Bd7 Bd3 Re8 c8B Rh7 Nc1 Qdg4 Ne2 Bb5 Be6 Qa7 Qb1 Bd7 Qc2 Bd6 f8N Bc8 Nfd7 Nge7+ Kc4 Bb7 Bg8 Be4 f7 Rh6 Nc1 Rf6 Re2 Kg3 h4 Kh3 h5 Kh4 Rg2 e2 Rf2 e1Q Re2 Ng7 Re3 Bh7 Ne2 Qh6 Re4 Rf2 Re3 Ngf5 Re4 Ng6 Kd5 Qhf4 Re3 Qb4 Re4 Nb3 Re3 Nge7+ Ke6 Rc8 Re4 Rc3 Kf6 Nc5 Nc4 Ra3 Re6 Ra1 Nce5 Re1
qnR1r2n/2n2B2/1B3rn1/n1Bq2PQ/nrbN3n/K4P2/q5P1/5kbR w - - 0 1 illegal: Other
2b2nr1/4Q3/n1bqq2P/1R1R4/2B1n1KP/2P1bB2/1bkqr2B/1rNb3q w - - 0 1 illegal: Other
3r2qR/2P2K2/N1bb1PP1/Rrb4Q/5qb1/nr2BB1b/B1k1n1n1/1q3r2 w - - 0 1 illegal: No possible last move
nRq1b3/1q3Qq1/R3bq1n/3PR3/2br2N1/2bnn2P/B2nP2K/3Nk2r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 a4 Kd7 d4 Kc6 a5 Kd5 a6 Ke4 d5 Ke3 a7 f5 Bg2 g5 Kf1 c5 Qe1 b5 Nd2 f4 Ra4 f3 Qa1 f2 Qc1 b3 Nh3 b2 Qe1 b1B Nf3 b4 Nfg1 c3 Ra1 c2 Ra4 c1Q Bf3 c4 Kg2 f1N Nf2 c3 Ra5 c2 Be4 b3 Bf5 b2 Rc5 Nh6 Qa5 Na6 Qb4 Nc7 Qb8 Kd2 Bd3 Bg7 Rc4 Qf6 Rf4 Ke1 Qb7 Ba2 Bb5 b1B Ngh3 Be6 Rf5 Bc4 Kg1 g2 Qa6 Ne3 Qc6 Rac8 Qc5 Na8 Qe7 Qcb2 Re5 c1N Qc7 Nd3 Ba4 Qb7 Qb8 Bc2 Bd7 Ba4 Ne4 Rc7 Bc8 Be8 Nef2 Rc5 Nd1 Ra5 Re4 Ra4 Qe5 Bf5 Bd7 Qd6 Rf4 Kd2 Re4 Qbc7 Qg3 Rg8 Re7 Ra1 Rf7 Bc3 Qh4 Nb6 a8R Qc8 Ra4 Na8 Ra7 Qe7 Ra3 Be6 Qh5 Rf8 Rf3 Rf4 Qf7 Rd4 Nf2 Qb4 h3 Rc1 Kh2 g1N Rf5 Nf3+ Kg3 Qb2 Rb3 Rb1 Rb8 Qbb7 Nb2 Re1 Na4 Rf1 Ne4+ Kd1 Nec5 Nd2 Re5 Re1 Rg1 Rf1 Kh2 g3+ Kh1 g4 Ne4 g2+ Kh2 Ke1 Nf6 Kf2 Nb2 Rb1 Rc1 Ra1 Rc2 Rg1 Qg8 Ke1 Nd1 Rf1 Ra2 Rg1 Ra6 Rh1+ Kg3 g1Q+ Kh4 Qb2 Qf7 Qf1 Ba4 Qbb7 Bb3 Qf5 Ba2 g3+ Ng4 g2 Kg3 Nf4 Nh2 g1Q+ Kh4 Qg7 Ng4 Qff6+ Kg3 Rf1 Kh2 Nd3 Qh5 Rg1 Qf7 Rh1+
B4K2/2r2b1r/1bP1PPrr/q2Q3q/q2NN1nq/1B1b1bR1/5nq1/1B2k3 w - - 0 1 legal: proof: b4 a5 h4 axb4 e4 e5 d4 c5 a4 cxd4 Bb2 g5 Ra3 gxh4 Re3 d3 Bd4 exd4 e5 f6 e6 Nh6 Re4 Ng8 Re5 fxe5 Kd2 Ke7 f4 Kd6 g4 Kd5 c4+ Ke4 g5 d5 f5 h5 g6 b5 a5 b3 c5 b2 f6 h3 g7 h2 a6 b4 a7 b3 c6 h4 Ne2 Kf3 Qe1 h3 Qd1 Kf2 Rg1 h1Q Ng3 h2 Qh5 e4 Qg4 e3+ Kd1 e2+ Kd2 Bd7 Nf5 Rh6 Nd6 Be8 Qg6 Qg2 Qh7 h1R Nf7 Qa5+ Nc3 b1R Qg6 b2 Qg4 Bc5 Ne5 Bf7 Ng6 Na6 Nf8 Nb4 Ng6 Rc8 a8B Rc7 Na4 Bb6 Nc5 Rh7 Qg5 Nh6 g8B Ng4 Qe5 R1h6 Qh5 Ra1 Nf8 b1B Kc1 e1Q+ Kb2 d2 Kb3 d3 Qe5 d4 Kc4 d1B Nfd7 d2 Nb3 d3 Ndc5 Bf3 Qd5 d1Q Nd4 d2 Be2 Qda4 Bd1 Rg6 Bb3 Rhh6 Bh7 d1Q Qe4 Nd3+ Kd5 Ra2 Kd6 Re2 Qf5 Re5 Qe4 Reh5 Qd5 Rh1 Nc2 Ke2 Ne4 Qh4 Nd4+ Ke3 Qb5 Ndf2 Qf5 Bd3 Qd5 Rc8 Ke7 Rc7+ Kf8 Qe2 Rc1 Rh2 Rc3 Rh3 Ng5 Kd2 Ne4+ Ke1 Nd2 Qe5 Ne4 Bc2 Rd3 Qeh5 Rc3 Be2 Re3 Bd3 Rg3 Bf3 Qc4 Qhe5 Ng5 Bf1 Bc2 Rh5 Ne4 Qhg5 Bd1 Rg7 Bf5 Rg6 Bb3 Rh7 Nc3 R3h6 Bb1 Qh4 Qd5 Bd3 Ne4 Qeh5
4nk1r/bpBRn1b1/3qrN2/P1N1R1q1/1Q3P1q/3P2rn/K1r5/R4b1r w - - 0 1 legal: proof: c4 d5 b4 dxc4 e4 f5 b5 fxe4 b6 axb6 Ke2 b5 Ke1 b4 h4 g5 a3 c3 Bc4 gxh4 Ba2 b3 Qc2 bxa2 Qb3 Nf6 Qd1 Ng8 g4 e5 d3 c5 a4 h5 f3 c2 Kd2 h3 Kc3 c4 Kb2 e3 g5 c3+ Kb3 h4 g6 h2 g7 h3 a5 e4 Bb2 c1Q Nd2 c2 Qe1 e2 Be5 e3 Qd1 e1Q Bc7 e2 Be5 Nd7 Nf1 Ndf6 Rb1 a1B Bd4 Qh4 Ne3 e1R Bb2 Bc5 Ne2 Ba7 Rf1 h1N Nd5 h2 Nef4 Nf2 Qd2 h1R Qb4 Bh3 Ne6 Re4 Nc5 Re6 Rd1 Bf1 Re1 Nh3 Be5 Qcf4 Re4 c1R Bc7 Qfd6 f4 Rc2 Rd1 Bb2 Ka2 Q8e7 Ra1 Kf7 Bb6 Rf8 Bc7 Ne8 Nb6 Qed8 Nbd7 Ke7 Ree1 Rf5 Re2 Rg5 Ree1 Rg3 Re4 Ngf6 g8R Nd5 Rg6 Kf7 Rh6 Kg8 Rh7 Qdg5 Re7 Rf2 Re2 Bg7 Nf6+ Kf8 Rd7 Rfh2 Qb2 Ne7 Qb4 Nf2 Re5 Nh3+ Ka3 Rc2 Kb3 Rc1 Ka2 Rc2+
8/1b1k2r1/6rB/3rP1nq/rPrR2R1/q1Rr4/pK3NQP/q2Bnrb1 w - - 0 1 illegal: No possible last move
1rq5/NN1Q1R1P/B1R1bP1k/1n4r1/1rP2r2/n5p1/q4Rr1/1rb1K1rq w - - 0 1 illegal: No possible last move, all moves rejected
3q2B1/7b/K2b2Bq/3b3R/1qbbP1rN/1Q2P1p1/1N2Prn1/b2nn1kN w - - 0 1 illegal: Other
1b6/r3q2b/1rP1bqBQ/r1RPn1nN/P4R2/NKpn1bbR/8/b3k3 w - - 0 1 legal: proof: g4 e5 b4 h5 c4 hxg4 f4 exf4 c5 a5 Bg2 axb4 Ba3 b3 Qc2 d6 Qd3 c6 Qb5 cxb5 c6 Be7 Bf1 Bf8 Bc5 dxc5 Bg2 b4 Bh3 Ra7 Bf1 Ra8 Kd1 Ke7 e4 Kf6 d4 Kg5 a4 Kh4 e5 f5 h3 Kg3 d5 Kf2 e6 g5 e7 b5 e8Q c4 h4 b2 Kc2 f3 h5 g3 h6 g2 h7 g4 Rh3 f4 Nc3 b1R Ra2 b3+ Kd2 b2 Kc2 b4 Nge2 g1B Qd7 g3 Nc1 b3+ Kd1 g2 Nb5 Ra7 Qc7 Bd6 Rh5 Bh2 Bd3 g1B Ra3 Nf6 Qb7 Nfd7 Re5 Qe7 Nd4 Na6 Qb5 Bb8 Be2 Nac5 Qa5 Nd3 Qc3 Bg3 Rh5 N7e5 Qa5 Be6 Kd2 Re8 Kc3 Ke1 h8R f2 Ra1 f1B Nf5 f3 Nh6 f2 Rh4 Bg2 Na2 f1Q Ng4 Qff6 Nb4 Bf3 Bd1 Rd8 Bc2 Rdd7 Qd8 Ra5 Qf8 Rda7 Rh3 Be3 R8h4 Bh6 Ra3 Bg7 Ra1 Rc1 Qh8 b1B Qh6 b2 Ra2 Qff7 Nf6 Qff8 Nh5 Qff6 Ra3 Rd1 Bb3 Bc2 Rf4 b1N+ Kd4 Nd2 Kc3 Rb1 Ra2 Bcd1 Rc2 Be4 Rc1 Ndf3 Bc2 Rb2 Bb1 Ng5 Bc2 B4f5 Bb1 Bh7 Nc2+ Ke2 Na3 Rb6 Rc2+ Ke1 Rc1 Nc5 Bg6 Ncd3 Rb1 Bh8 Rb5 Bf3 Rc5 Nd7+ Kc2 Qff8 Nb1 Ba1 Na3 c3 Rcc4 N7e5 Rc5 Nb4+ Kb3 Qff6 Rfc4 Nbd3+ Rb4 Rba6 Rf4 Rb6+
bR1r1b1k/1BB1P3/1nb1q1b1/3pP1P1/nqnN4/1qB3QK/2N3r1/2b4n w - - 0 1 illegal: Other
B1b1B3/1rPQ2bk/n5rr/6BR/2n2Pn1/q2PpN1N/n4r2/K1r1bq2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 h5 fxe4 h6 c5 Qe2 c4 Qd1 gxh6 Bb2 h5 Bc1 h4 a4 d6 Ra3 d5 Rb3 Qb6 Qe2 cxb3 c4 Qa5 c5 Qd8 Qc4 dxc4 Kd1 Kf7 f4 Kg7 g4 e5 g5 b5 a5 h5 d3 e3 g6 e2+ Kd2 e1B+ Kd1 b2 Kc2 b3+ Kd1 e4 a6 c3 a7 b4 c6 e3 c7 c2+ Ke2 h3 Bd2 c1N+ Kd1 h2 Ne2 h4 Ng1 h3 Ne2 Qe7 Bg2 Nh6 Bf1 Na2 Bg2 Na6 Bc6 Ng4 Bg2 Rg8 Na3 b1N Bc6 b2 Kc2 b3+ Kd1 Qd6 Nb5 Qa3 Bc1 Nd2 Bd7 b1Q Ng1 b2 Be8 Nc4 Nd4 Rb8 a8B Rb3 Ndf3 Rc3 Bec6 Kh8 g7+ Kh7 Be8 Qa1 Ke2 b1R Bb2 Qa4 Ba3 Rb7 Be7 Qa3 Bd8 Q1b2+ Kd1 Qg2 Bg5 Qf1 Bb5 Rb3 Kc2 Rc3+ Kb1 Nc5 Ne2 Na6 Rg1 h1R Ka1 Rh2 Be8 Rg2 Rh1 h2 Neg1 Rf2 Nh3 Rh8 Rg1 h1R Rg2 Rg1 Rh2 Bd7 Bd8 Bc8 g8Q+ Kh6 Bf6 Bg7 Qd5 Kh7 Qd8 Kg8 Qe7 Rh6 Qd7 Kh7 Bd8 Nge5 Rh1 Rgg6 Bg5 Ng4 Nhg1 Qb4 Rh5 Qa3 Nh3 Rc1#
1R4n1/2R1r1r1/1Pn2nr1/Q2Nb2P/B2B2n1/1b1k3P/qrp2r1n/Rn5K w - - 0 1 illegal: Other
1b3B2/2n4B/qP2b3/2R1q2q/3qP1rp/3rrB2/n1bknK1P/N2N1b1Q w - - 0 1 legal: proof: b4 c5 c4 g5 a4 b5 f4 gxf4 d4 cxd4 c5 bxa4 Ra3 e5 Rc3 dxc3 c6 Bb7 c7 f3 c8Q Ba6 Qc4 Bc8 Qf4 exf4 g4 Ke7 e4 Ke6 b5 Ke5 b6 a5 g5 f5 g6 h5 g7 d5 Bb5 c2 Ba6 d4 Bf1 h4 Be2 f2+ Kf1 d3 Bg4 Kd4 Bd2 c1N Nh3 a3 Rg1 a4 Rg3 a2 Kg2 f1R Nc3 a1Q Nf2 f3+ Kh3 a3 Nb1 a2 Bg5 d2 Rg2 f4 Rg1 Ke3 Rg3 Qd5 Rg2 Qad4 Na3 a1Q Qc2 d1B Qa2 Rg1 Nb5 Bd6 Qb2 Nc6 Qb1 Bc2 Nd3 f2 Bf6 f1Q Qb4 f3 Ne5 f2 Qc5 Ra3 Be7 Nb4 Bf8 Bb8 Nd7 Nf6 g8B Ne2 Bh7 Kd2+ Nc3 Na2 Bf3 Ne8 Nd1 Qh5 Qb4+ Qac3 Qb1 Nc7 Qa1 Rg8 Qb1 Rg4 Nc5 Be6 Nb3+ Kd3 Na1 Kd2 Be7 Qcc5 Bd6 Qce5 Bf8 Qe1 Rg3 Rh1 Kg2 Re3 Nc3 Qc1 Nd1 f1B+ Kf2 Qa3 Rg2 Qa6 Rg1 Rg7 Rg5 Rd7 Rf5 Rg1 Rg5 Rg4 Rf5 Qed6 Rc5 Q6e5 Nb2 Bg2 Qh1 Bf1 Nd1 Qb2 Bg8 Rdd3 Bh7 Qbd4
2r5/2kPRK1q/n7/2rQbb1b/1nRnp2r/1bRP1PB1/qBq2r2/4N3 w - - 0 1 illegal: Other
2n1Rb2/1rP1N3/1k1P1r1b/qB6/n2KBrpQ/qb3Bb1/R1Pb1b2/3r4 w - - 0 1 illegal: Other
2b3B1/r3r3/r2B1NQ1/RbP2NPp/q4K1b/pP4n1/3n3q/bBnkb3 w - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 d4 cxd4 h5 bxa4 h6 gxh6 Ra3 h5 Rah3 h4 Rc3 dxc3 Kf2 Ke7 Kf3 Kf6 e4 Ke5 g4 f5 c5 d5 b3 a5 Be2 h5 Be3 h3 Ba6 h2 Be2 a3 Bc1 d4 Qc2 a4 Bd2 a2 Bf1 a1B Bd3 a3 Nh3 Ne7 Ng5 Qa5 Ba6 d3 Bc4 Kd4 e5 Na6 e6 Rh7 Bb5 Nb4 Rf1 h1Q+ Kf2 f3 Kg3 f2 Re1 f1N+ Kf4 Qa4 Rc1 Ra6 Re1 Na2 Nf7 Qh2+ Kg5 f4 Re3 f3 Qb2 f2 Nh6 Nf5 e7 N5g3 e8B Re7 Kf4 Nc1 Qc2 Raa7 Be1 d2 Bf7 d1R Qg6 c2 Bg8 Nd2 Re6 f1B Bd3 Ra6 Be4 Bb5 Nc3 Bg7 Bf5 Bf6 Ne4 Bh4 g5 Kd3 Rb6 Raa7 Ra6 Ke2 Ra5 Ra6 Bf2 Rea7 Bd4 Re1 Nf6 Kd1 Bd3 Ree7 Nf5 Na2 Be4 c1B Be5 Bcb2 Bb8 Bc3 Bd6 Bb4 Bb1 Nc1 Qe8 Nde4 Qf7 Be1 Qg6 Nd2+
5n1Q/2Bp1nq1/Rnr3qP/b1B5/1r2P3/R1pP2nr/N4b2/B1nbK1k1 w - - 0 1 legal: proof: c4 e5 g4 b5 a4 bxa4 g5 Na6 Bg2 Nb4 Kf1 Nc2 Bh3 h6 Kg2 hxg5 Kf3 Qe7 Bf1 Qd8 c5 g4+ Kg3 Bxc5 Kg2 Bf8 d3 f5 Ra3 e4 Qd2 e3 Qd1 f4 Nd2 exd2 e3 Ke7 Ra1 Ke8 Be2 f3+ Kg3 fxe2 Kg2 Rh5 Qf1 Rh6 Qd1 Rh8 f4 Kf7 Kf2 Kf6 b4 Kf5 h4 e1R b5 g5 b6 c5 h5 a5 b7 a3 b8B a2 Rh2 c4 Ba3 a4 Qf3 d1N+ Kg3 Nb2 Kf2 g3+ Kg2 g4 Rh3 Qf6 Bad6 a3 Rh1 Rb1 Nh3 Ra6 Qc6 Nh6 Bbc7 Na4 Qa8 Qg6 Qc6 Nf7 Bc5 Nb6 Qd6 Bb7+ Qc6 Nd4 Bb8 Ne6 Rg1 Rb4 Kf1 g2+ Ke2 g3 Bbd6 Kg4 Qb5 Bf3+ Ke1 Bd1 e4 Kf3 Rh1 g1N f5 Kg2 f6 Ne2 Rc1 a1Q Bc7 a2 Rc3 Bd6 Ra3 Nf8 Ng1 Rh7 Bd8 Bc7 Bd4 Qb2 Qe5 a1N Bc5 Nb3 h6 Rg7 Rh5 Nbc1 Bd4 Qa1 Qe8 Qb2 Rha5 Kh2 R5a4 g2 Be5+ Ng3 Ne2 g1B Nc3 Be3 Na2 Kg1 Bc3 Qg2 Ba1 c3 Ra5 Ra8 Ra6 Rc8 Be7 Bd8 Bd6 Rc6 Bc5 Na8 Bd6 Ba5 Bc7 Nb6 Qe5 Qf5 Qd4 Rg4 Qe5 Rh4 Qe8 Rh3 Qc8 Nd6 f7 Qg6 Qe8 Nh7 f8B Nf7 Bc5 Nf8 Bd4 Qf3 Qb8 Qff6 Bc5 Qfg7 Qc8 Ne6 Qg8 Nf8 Qh8 Bf2+
4b2b/PNrR1r2/2qP1N1P/npn1Qp1q/bb3bB1/1r6/1K2BB1k/3q4 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 e4 Ke7 h4 Ke6 d4 c5 Kd2 f5 Kc2 b5 h5 g5 h6 b3+ Kb2 c3+ Ka3 c2 a5 c4+ Kb2 g4 d5+ Ke5 a6 c3+ Ka1 b2+ Ka2 Qd6 Qe2 Ne7 Be3 c1R Bc5 Kf4 e5 c2 e6 Qc6 Bb4 Rh7 Rh5 Bd7 Ka3 Be8 Be1 Rf7 Qd3 Nd7 Nc3 b1B Kb3 Nc5+ Kb2 Ra7 Rh4 Rc7 Nf3 g1Q a7 g2 Bd2+ Kg3 Qe4 Qh2 Qd4 g1Q Be2 Qd1 Ng5 Ba2 Qe4 Bb3 Be3 Ba4 Nh7 Ra1 Nf6 Ra3 Qe5+ Kg2 Bd4 g3 Rf4 Qh5 Bf2 Kh2 Nce4 g2 Nd6 g1B Nb7 Bg7 d6 Bh8 Rg4+ Rg3 Rg7 c1B+ Kb1 Bf4+ Kb2 Qcf3 Rh7 Nc6 e7 Na5 Rg7 Qc6 Bg4 Bd7 e8B Rh3 Be1 Be3 Bf2 Bd2 Rh7 Bb4 Rg7 Rf8 Bg6 Be8 Rd7 Rf7 Be2 Qg4 Bh5 Qg5 Bhf3 Qh5 Bg4 Rb3+
2nr1qq1/qRR3r1/b1b2P1K/P5r1/n1p3nP/1N3N1k/B1n1p2N/2bQ4 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 g4 f5 g5 fxe4 Ba3 bxa3 g6 hxg6 Be2 g5 Bf1 g4 Ke2 Kd7 Ke3 Ke6 Kf4 b5 Kg5 c5 d4 b4 f4 g3 h4 g2 Qe1 e3 Bd3 b3 Qc1 a2 Rh3 e2 Nf3 g1R+ Rg3 e1N Bf1 b2 Nh2 c3 Bb5 c2 Rg4 c4 Nc3 b1B Qb2 c1N Ba6 Nf6 Qc2 Nb3 Nd1 Nbd7 Qc1 Ra7 Qc2 Nb6 Qb2 Be4 Rg3 Nc2 Bb5 Ng4 Nf2 Bc6 Qc3 Nc5 Kg6 Ba6 Qb3 Nc8 Rb1 a1Q Nd3 Rg8 Kh5 Kf5 d5 g5 d6 e5 d7 e4 Ne1 e3 Nef3 e2 a5 Na4 Rb2 Ba3 Rg2 Qe7 d8N Qf8 Ne6 Rag7 Nc5 Rd1 Rg1 Rd8 Rd1 Qc1 Rd7 Qe3 Rc7 Qf2 Rb1 Bc1 Rb2 Na3 Qd1 Nc2 Nb3 Qa7 Nf1 Nh2 Kh6 Kg4 f5 Kh3 f6 g4+ Ne3 g3 Rb1 Rd2 Ng4 g2 Rb2 g1Q Rb1 Nf1 Ngh2 Nfe3 Rb2 Rd8 Rb1 Be8 Bd7+ Qg4 Bf5 Bc6 Rb2 Nd4 Bb1 Ndc2 Ba2 Rg5+ Kh7 R8g7+ Kh6 Qg1 Nbd2 Qg4 Rbb7 Qe6 Nb3 Qef7 Qd5 Q7g8 Qd1 Ng4+
1K6/1n2P2N/3B1q2/1P1br1r1/4n2b/Bqn1Rb1p/k1P2rNp/3BQrq1 w - - 0 1 legal: proof: b4 b5 g4 c5 a4 bxa4 h4 e5 d4 exd4 h5 f5 h6 fxg4 Ra2 c4 Rb2 gxh6 Ra2 h5 Ra3 h4 Rd3 cxd3 Kd2 Ke7 e4 Kd6 f4 a5 f5 h5 b5 Kc5 e5 Kb4 e6 d5 f6 h3 f7 h2 Na3 h4 Qf3 h3 Qd1 g3 Qe1 g2 Qf2 Nf6 Nb1 a3 Qf5 a2 Qf3 a1Q Qd1 a4 Qe2 a3 Nc3 a2 Qd1 Qb1 Qe2 a1Q Qf2 Qb3 Nd1 Ne4+ Ke1 d2+ Ke2 d3+ Ke3 d4+ Kf4 Nc6 Qh4 Rh5 Be2 Bb7 Qg4 Be7 f8B Re5 Nf3 g1R Bh6 Bh4 Qg6 Qf6+ Qf5 Nd8 e7 Rg5 Ne3 d1B Ng2 d2 Re1 d3 Ba3+ Ka4 Bd6 Bd5 Ba3 Nb7 Bd6 Rg3 Ng5 Rf8 Nh7 Rg5 Bg4 Bf3 Re3 d1N Bg7 Qf7 Bf6 d2 Qe6 Ndc3 Bh5 Nec5 Bg4 Ka3 Bh5 Bfe4 Bd1 Bf3 Re1 Ref5+ Ke3 Ka2 Be2 Bfe4 Kd4 Qd1 Qe5 Nb1 Bh5 Qe6 Qg3 Rf7 Re3 Qg1 Qf2 d1R+ Qd2 Re1 Bd1 Ref1 Qe1 R5f2 Bh8 R7f5 Bg7 Na4 Ba3 Qg6 Be5 Nd2 Bc7 Nc3 Bcd6 Nd8 Kc5 Re5 Kb6 Bf3 Kc7 Qf6 Kc8 Nb7 Kb8 Nde4
3kb1q1/1rR5/PP1b1prp/r2b1n1N/1B2P1R1/1B1q3n/2r5/R1rb1KQ1 w - - 0 1 legal: proof: c4 a5 f4 g5 d4 e5 b4 exf4 h4 gxh4 d5 b5 Na3 bxc4 b5 c6 Nc2 cxd5 Nb4 axb4 Qc2 d4 Qd3 Qb6 Qd1 Qd8 a4 d5 g4 d3 a5 d4 e3 c3 g5 b3 g6 h3 g7 h2 Bg2 b2 Bc6+ Nd7 Qe2 b1R Qb2 c2 Qb3 d2+ Kf1 d1Q+ Kg2 d3 Qd5 h6 Nh3 d2 Ra3 f3+ Kf2 f6 Qa2 Ne7 g8R Nf5 Rf1 h1B Rg7 Bd6 Rg4 Rg8 Qa1 Rg6 Bd5 Nb6 Bb2 c1R Bb3 Rc2 Bc1 Nd5 Ng5 Bd7 Ne4 Nf4 Ng3 Ke7 Re1 Be8 Kf1 f2 Nh5 Bd5 e4 Nh3 Qd4 Qb8 Ra1 Kd8 Ba3 Qf3 Bb4 d1B Re2 Qd3 Qe3 Ra7 a6 Rbc1 b6 Rb7 Qg3 Qc8 Qg1 Qa8 Kg2 f1R Rf2 Re1 Rd2 Re2+ Kf1 Rc5 Rda2 Ra5 Rc2 Qc8 Rc3 Qe6 Rc5 Qg8 Rc7 Rec2+
2qb4/1r1b1PQ1/1Nq5/p3B2q/N6b/nP2pqrk/2PR2Nb/2n1qK1B w - - 0 1 illegal: No possible last move, all moves rejected
3BK3/2p2b1p/2k4q/2B3QR/1P5r/b1q2b1n/PqNP1N2/1rbNqnq1 w - - 0 1 legal: proof: h4 f5 b4 g5 e4 fxe4 c4 gxh4 c5 d5 c6 bxc6 Ke2 c5 Ke1 a5 Na3 a4 Bc4 dxc4 Rb1 Na6 Rb2 Nb8 Rb3 axb3 Ke2 Kd7 Ke3 e5 f4 b2 g4 b1Q g5 c3 f5 c2 f6 h3 f7 c4 g6 h2 g7 c3 Qe2 Nc6 Qh5 Nd4 Qd1 Ne2 Qe1 Qh4 Nh3 Nh6 g8N Ng1 Ng5 Nh3 Ne7 Rg8 Rf1 h1B Nf3 Qb2 Qd1 Rg4 Rg1 Nf5+ Ke2 e3 Kd3 e4+ Kc4 e2 Kc5 e1Q Ng5 e3 Nf3 e2 Kb5 Ng3 Nd5 Nf1 Ne3 Bg7 f8B Qh6 Bc5 Rh4 Ng5 Bf3 Ne4 Qf2 Rg3 e1Q Rg5 Qg1 Nf2 Ra6 Qe2 Rf6 Ned1 Rff4 Qe3 Bh8 Ka4 Kc6 Rh5 Be6 Ka5 Rfg4 Qg5 Rg2 Ka6 Rh2 Ka7 Rh1 Kb8 Qb1 Bb2 c1Q Qg7 c2 Bf6 Qbb2 Bd8 Qc3 Qf6 Q1b2 Qg5 c1B Nc2 Qee5 Bd4 Qce3 Qg4 Qg2 Bb6 Qba3 Ne4 Ng3 Ne1 Bb2 Ndc3 Bg7 Nc2 Rb1 Na1 Qe1 Nc2 Nf1 Qg5 Qg1 Nd1 Bc1 Nef2 Qa1 Bc5 Bgb2 Qf5 Qc3 Qg5 Bc4 Kc8 Ba3 Qg3 Qab2 Qg5 Kb5 Kd7 Be6+ Ke7 Kc6 Ke8 Bf7+
1bBn1n2/3Rr1q1/4PRN1/1p2rnk1/q1pP1br1/1N5b/Qn1r1P2/1N4K1 w - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 a5 h4 axb4 d3 f5 Kd2 fxg4 h5 e5 h6 e4 Rh4 e3+ Kc2 gxh6 Rh1 h5 Bd2 exd2 Rh2 h4 Rh3 Ra7 Rh1 Ra8 a4 Ke7 e4 Kf6 e5+ Kg5 d4 h5 a5 c5 a6 b5 a7 h3 Ra2 g3 Qe1 d1N Kd2 h4 Ke2 h2 Rc2 g2 Rc3 b3 Nd2 h3 Rd3 c3 Rf3 c2 Rf6 c1B Rf7 c4 Rh7 b2 Rb7 b1Q Rg7+ Qg6 Rb7 Nf6 Rc7 Nb2 Rc5 Nh7 Rc6 Qg7 Qd1 Bd6 Qe1 Re8 Qd1 Nf8 Qc2 Re7 Nb3 Qa5 Qb1 Bd2 Qa2 Bf4 Ra6 Bc7 Rf6 Qa4 Kf3 Nc6 Ne2 g1R Nc3 Be6 Nb1 Rae8 a8N Nd8 Nb6 Bb8 Nd5 Rg4 Bd3 Bd7 Bf5 Bc8 Rg1 h1N Ke2 h2 Kf1 Ng3+ Kg2 Bc1 Nf4 h1R Ng6 Bf4 Re1 Rh5 Kg1 Bd7 Re3 Rh3 Be6 Nf5+ Rg3 Bc8 Rg2 Rd3 Bd7 Bb7 Bc8 Rd2 Rg3 Bg2 Rh3 Rc7 Rh7 Rc5 e6 Re7 Ba6 Re5 Bb7 Qg8 Rhf7 Qg7 Bc8 Re8 Ra7 Re7 Rd7 Bh3+
Kq1n1Bqb/RQN3r1/3p3P/2r4n/2rn1r1P/1p3bn1/3RR1P1/4Nkb1 w - - 0 1 illegal: Other
Bb1NnR1B/rb1r1q1q/PKpN4/6b1/P4r1p/2b4n/rQ1N2P1/3n3k w - - 0 1 illegal: Other
2b1Nb2/nBQ2Nr1/2qb3N/1r2R2r/3K3P/q2p1rPP/rp1B3p/4nk2 w - - 0 1 illegal: Other
1nk4b/5Rq1/r2n1pK1/1b1P3P/rpN5/N3rPn1/pr4qR/Rr3Q1B w - - 0 1 legal: proof: e4 b5 b4 c5 g4 cxb4 a4 bxa3 e5 h5 e6 hxg4 Be2 b4 Bb2 axb2 Bf1 dxe6 Na3 e5 Nb1 e4 Ke2 Kd7 Ke3 e5 h4 g5 d4 a5 c4 g3 h5 a4 f3 a3 d5 g2 c5 a2 Nh3 g1N Nf4 f6 Nd2 b1R Be2 g4 Bc4 g3 Ne2 g2 Nf4 Ne7 Qc1 Ra4 Bd3 Nf5+ Kf2 e3+ Ke1 e2 Kf2 e1R Qa3 e4 Bf1 Rb2 Ne2 Reb1 Nc4 Bg7 Qd3 Ba6 c6+ Kc8 c7 Qf8 Rh2 Nd6 Kg3 e3 Kg4 Bb5 Nd4 e2 Nc2 e1R N2a3 Ne2 Qd1 g1Q+ Bg2 Ng3 Bh1 Re8 Qf1 Re3 Kf4 Qg2 Kg4 Kb7 c8R Rh7 Rd8 Bh8 Rd7+ Kc8 Ra7 Rhe7 Kf4 R7e6 Rf7 Nb7 Kg4 Rea6 Kf4 Ne4 Kf5 Ng3+ Kg6 Nd6 Rh3 Reb3 Rh4 Re3 Rh2 Qg7+
1q1R2rn/1NN1RPrq/n7/p2p2np/bbQ2Bnn/4P3/qK1PR3/6k1 w - - 0 1 illegal: No possible last move
3nq1B1/p2q3N/1RR1N3/q1P3Kr/1qP1P3/r1pp1b2/1r3b1q/1RQ1n1k1 w - - 0 1 illegal: Other
B1rn2k1/K7/1NR2q1Q/1r2b1N1/3PPqp1/1ppbqB1B/2nr3P/n2r4 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 e5 a4 exf4 Kf2 d5 Bb2 dxc4 Ke1 h6 Be5 f3 Bf4 Ra6 Ra3 Ra8 Rd3 Bc5 Rd5 gxf4 g5 Be7 g6 Bf8 Rg5 hxg5 Kf2 c5 e4 b5 d4 f5 g7 Kf7 a5 c3 a6 b3 a7 c4 Nd2 g4 Qa1 b2 Qa2 b1R Qa4 b4 Qa2 c2 Nb3 c1N Be2 c3 Nd2+ Nb3 Qc2 Qf6 Bf1 Bd6 Nc4 Na6 Qd2 Na1 Ne3 Be5 Nd5 Ne7 Qc1 Nc6 Qc2 Nd8 Bd3 Kg8 Bb5 b3 Qa2 Rh5 Nh3 Rd1 Ng5 Rd2+ Be2 Nb4 Nb6 Ba6 Rf1 Rc8 a8B Bd3 Qa3 Nbc2 Qd6 Qe7 Qh6 Qd6 Rb1 Qf6 Kf1 f2 Rb2 Rh3 Ra2 Rh5 Ra4 Bb8 Rc4 Be5 Kg2 f1R Rc6 Rfd1 Kf2 Ne1 Kf1 f3 Kf2 Qg6 Ke3 f2 Bf3 f1Q Rc4 Qh3 Rc7 Bf6 Rc6 Nec2+ Kf4 Be7 Ke5 f4 Kd5 Bf6 Kc5 Be5 Nd7 Qf6 Kb6 Qg3 Ka7 Qe1 Nb6 Qe3 Bg2 f3 Bh3 f2 Nf3 Kf7 g8B+ Ke8 Be6 f1Q Ng5 Q1f4 Bc4 Ke7 Qg6 Kf8 Ba6 Bf1 Qh6+ Kg8 Bd3 Re1 Be2 Red1 Bf3 Bd3 Nh7 Rf5 Ng5 Bd6 Bb7 Rb5 Ba8 Be5
1nQ1rNk1/2q1B2p/2N4n/2rqn1N1/1rP3b1/1p2R1b1/KPP1p1r1/5R1q w - - 0 1 illegal: Other
2b4r/1B1pb3/Bp4Qb/1q2Prb1/1P2P1n1/1k2Nn2/5R1p/rbBrR2K w - - 0 1 illegal: Other
1bq1R2B/P7/BP6/p1Rq1r1k/npP2Qqp/2R1qr1b/2qq2N1/1Kn5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 d4 e5 d5 exf4 d6 cxd6 Kf2 d5 Ke1 d4 a4 b6 Qd2 Ra6 b5 Ra7 Qb4 Ra8 Nd2 Bd6 Nc4 axb4 a5 Bc5 a6 Bf8 Na5 bxa5 Kd1 d5 g4 h5 c4 f5 Kc2 Kf7 e4 Kg6 a7 d3+ Kb1 d2 e5 d1Q b6 d4 e6 f3 g5 d3 e7 h3 e8R h2 Re6+ Nf6 Re7 d2 Bd3 f2 Ne2 f1Q Rc7 h4 Ra3 Na6 Rb7 Qf3 Nd4 Qe3 Ka2 Nd5 Rc3 Rh5 Rh7 Qg4 Nf3 d1Q Bb1 Bd6 Rb3 Nf4 Ra3 Bb8 Rf1 h1Q Ne1 Nd3 Rh8 f4 Bb2 f3 Re8 f2 Rc3 Qdd2 Ng2 Nc5 Bc2 Qd5 Ba4 Nc1+ Kb1 Qhh3 Bb5 Na4 Ba6 Bd7 Re1 f1Q Rc8 Qff3 Rc5 Qfd1 Ba1 Qhg3 Re2 Qc7 Re1 Qc8 Bb2 Kh7 g6+ Kh6 g7 Rf5 g8Q Kh5 Qf7+ Qg6 Qe6 Rf3+ Rc2 Qd8 Qe8 Qe4 Rc8 Bf4 Bb5 Bh3 Qf8 Qg4 Rc5 Qdd7 Qf6 Rf8 Ba6 Bb8 Qf4 Qc8 Bh8 Rf5 Re3 Qed3 Re8 Q3e3 Rc3 Q1c2+
6Q1/4br1B/1B2pp1P/qk2rR1N/1rn2q2/P1Pb2pn/1Bb4b/3rK1N1 w - - 0 1 illegal: No possible last move, all moves rejected
bq1NR2B/p1k1bPB1/p6K/R1P1nP2/Q3qRnp/2r5/4bn2/4bn1r w - - 0 1 illegal: Other
qB3N2/1R2QP2/3B3P/qrRKB2P/5pb1/qp2p3/rb4rp/kn2b2n w - - 0 1 illegal: Other
3qr2n/qnp4p/2r2P1B/N3p1p1/1R2K1B1/2kb1N1P/2rb2Pq/2Q1b2N w - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 a4 fxe4 Qb3 a5 Qa2 axb4 Qc2 b3 Qd1 Rxa4 Ra3 b2 Rd3 Ra1 Ra3 Ra2 Ra8 Rxa8 Ke2 Kf7 Ke3 Ke6 d4 Kd5 f4 e5 h3 g5 f5 b5 f6 b4 Qf3 b3 Rh2 c3 Ba6 c2 Be2 Bf5 Qf2 Ne7 Bg4 Kc4 d5 Nbc6 d6 Na5 d7 Ra6 Qh4 Rc6 Qe1 Nb7 Bh5 Ng6 Qd2 Bb4 Nc3 b1Q Nce2 b2 Nf3 Qa2 Rh1 b1Q Bg4 Re8 Ba3 c1R Ng3 Rc2 Qc1 Nh8 Rd1 Be1 Bf8 Kc3 Nh1 Qa7+ Rd4 Qba1 Bh6 Bd2+ Ke2 e3 Rb4 Qdb8 d8N Qb1 Ne6 Qd8 Nc5 Be4 Nb3 Bd3+ Kd1 Qba1 Na5 Qa4 Rb6 Qf4 Rb4 Bf5 Ke2 Qh2 Ne1 Bd3+ Kf3 Bb5 Ke4 e2 Nf3 e1B Nc4 Ba6 Na5 Bd3#
1N1r2N1/1b5K/4PrPN/1p1r2n1/2Rb2Bn/1pnpqrkP/4p1Bb/5Q2 w - - 0 1 illegal: No proof kernel
1R1b4/n3n1P1/3prq1p/Q1p1k1rp/n5P1/K1N3rB/bP1R1r1N/2N3b1 w - - 0 1 illegal: Other
1B1Bbrqn/7p/3p4/2PB4/PpQr4/1Rr1p3/K1rR2nP/b1kqN1b1 w - - 0 1 legal: proof: g4 c5 a4 a5 d4 cxd4 b4 axb4 e3 dxe3 Ke2 f5 Ke1 fxg4 Na3 bxa3 f4 Kf7 c4 Kf6 f5 Kg5 c5 Kf4 f6 b5 f7 e5 Bb2 g5 Qc1 e4 Kd1 g3 Kc2 a2 Kb3 g2 Qc3 e2 Rc1 a1Q Qc4 Ke3 Qc2 e1R Rb1 g4 Bc4 b4 Rd1 g3 Ne2 g1R Qb1 g2 Bc3 Ne7 Be5 Bg7 f8B Na6 Bd5 Nc7 Rd4 Ng6 Bed6 Ne6 Bb8 Rc1 Nf4 Rc2 Rd2 Rgc1 Bc6 g1B Nh3 Bb2 Rg2 Nef4 Rf2 Ng2 Rf5 Kd2 Bd5 e3 Be7 Rf8 Nf4 Nh8 Nd3 d6 Rh5 Bd7 Ne1 Rf4 Qa2 Qg8 Bd8 Be8 Rf5 Rd4 Rf2+ Kd1 Re2 Rcc4 Rf2 R1c2 Re2 Kc1 Rd2 Bf2 Rf1 Bg1 Rff2 Ra7 Rd3 Rf7 Rfd2 Rf8 Rc3 Qb1 Re2 Kd1 Rf2 Qc1 Re2 Qd2 Rf2 Kc1 Rd3 Qd1 Rfd2 Qg3 Qa3 Qe5 Ka2 Qg3 Qb3 Qg8 Qc3 Rh4 Qd4 Re4 Rb3 R4c3 Qd3 Rd4 Qc4 Ba1+
4bN1k/1R4pB/PNpq1qr1/2K3b1/b1p1r2Q/nP1B2b1/3N1P1p/n5q1 w - - 0 1 illegal: No proof kernel
k2b1B2/p1b1K3/2P3N1/rBn2RPb/2pr1bBP/1R2p2p/4nbbq/Q7 w - - 0 1 illegal: No possible last move
2nR1Q2/3P1bpN/3K2P1/3p2R1/2Nb2pP/2nrpp1p/r5q1/1Bkrb1R1 w - - 0 1 illegal: No proof kernel
6n1/3r4/N1rPN1KB/kr2rR2/1bQ2r2/2rbP2P/1n1r2n1/rr2Q2R w - - 0 1 legal: proof: b4 d5 g4 h5 f4 hxg4 a4 b5 c4 dxc4 f5 a6 f6 exf6 a5 f5 Bg2 f4 Bd5 Qxd5 Kf1 Qd6 Ke1 Qb6 axb6 Bxb4 Nc3 Bf8 Nb1 b4 Kf2 Kd8 d4 g5 d5 f5 h3 c5 b7 Kc7 Ra3 Kb6 Qf1 f3 Kg3 f2 Re3 c3 Na3 b3 Bb2 f4+ Kg2 g3 Kf3 g4+ Ke4 c4 Qe1 f1R Qd2 c2 Bc3 c1R Nf3 b2 Nd4 b1R Nab5 a5 Qa2 a4 Nf3 a3 Nh4 f3 Ke5 g2 Ke4 g1R Rd3 f2 Qb2 a2 Ng6 a1R Qc2 g3 Ne5 g2 Qa2 Bf5+ Kf4 Nc6 Kg5 Bb4 d6 Rh5+ Kf4 Na5 Be1 c3 Qf7 c2 Qa2 Rb8 Rc3 Bd3 Nf3 Nc4 Kg4 Re5 Nc7 Nb2 Qc4 Ka5 Ng5 Rd1 Kh5 c1R Rc2 Rd2 Na6 Rd8 b8Q Rd7 Rc3 Ra3 Rc2 Rc3 Qe8 Rb5 Qe5 Ra1 Ne6 Rab1 Qd4 Rc6 Rc5 Rc3 Qc4 Ra1 Rh2 Rh1 Qee4 g1R Rf5 Rgg7 Qh4 Rge7 Kg6 Rhg1+ Qg3 Rb1 Rh1 Re8 Ng5 Ree5 Qe3 Rg4 Qg3 Rf4 Ne6 Ra1 Qh4 Rg1+ Qg3 f1N Bf2 Nh2 Be3 Ng4 Qh4 Rgb1 Qe1 Rf2 Bf4 Ne3 Bh6 Ng2 e3 Rf4
3n1kbK/6p1/3n1P1n/rBrR4/3PbQN1/nQ1q1Br1/3N1Pqp/5n2 w - - 0 1 legal: proof: c4 f5 b4 a5 c5 axb4 c6 dxc6 Na3 c5 Nb1 c4 e4 fxe4 g3 e6 Ba3 Bd6 Bc1 Bf4 gxf4 Kf8 Bg2 Kf7 Bf1 Ke8 a4 h5 Ra3 Rh7 Rg3 Rh6 Rg4 Rh8 f5 hxg4 h3 Rh7 d3 Rh8 Bf4 Na6 Ne2 Nb8 Bh2 g3 Ng1 gxh2 Kd2 b5 Ke3 c5 Kf4 e3 Ke5 c3 f6 b3 a5 b2 a6 c2 h4 c1R h5 e2 h6 e1Q+ Qe2 b4 a7 b3 h7 c4 Qe3 c3 Bh3 c2 Bf5 Kf8 Nc3 b1B Nd5 b2 Bh3 Nc6+ Ke4 e5 Be6 Qf1 Kf5 e4 Kg6 Nh6 Bf7 Qg2+ Qg3 e3 Qg4 e2 Ne7 e1N Bb3 Nf3 Ng8 Ng5 Ba4 Be6 Bb5 Ngf7 Nf3 Nd6 Nd2 Qd7 Rd1 Nd8 Qg3 Bd5 Qg5 Bba2 Qg4 b1N Qg3 Na3 Qg5 Nhf5 Nh6 Be4 Ng4 Bg8 Qf4 Nh6+ Qf5 Rc8 a8B Ra1 Bac6 c1N Bd5 Bf3 Qf4 Ne2 Be4 Ng3 Bb7 Be2 Bf3 Ra2 d4 Rc5 Rc1 Nf1 Re1 Bec4 Re5 Qe7 Rd5 Qe3 Rf5 Bgd5 Rg5 Qd3+ Rf5 Rg8 h8Q Be4 Kh7 Bf7 Qe5 Rb2 Qf4 Rb3 Qg3 Qc4 Bc6 Ne6 Be2 Qa6 Ne5 Ng4 Qd3 Ra5 Qc2 Rg3 Bf3 Qd3 Qb3 Rc5 Nd7+ Ke8 Bb5 Nd8 Ne5+ Nc6 Ng6 Be6 Rd5 Kf7 Ba6 Ra8 Bb5 Ra5 Qa8 Ne8 Qb8 Nh6 Qf4 Nd8 Kh8 Nd6 Ne5+ Kf8 Ng4 Bg8
2Nb1q1B/b2NbP1p/Q2r2Q1/B5p1/1P2n1q1/4kP2/1Rrn3b/3Kn2b w - - 0 1 legal: proof: e4 d5 h4 b5 c4 dxc4 a4 bxa4 h5 f5 h6 gxh6 exf5 Bd7 Na3 Be6 Nb1 Bc8 b4 Bd7 g4 Kf7 g5 Bb5 g6+ Ke8 Bd3 Ba6 Bc2 Bb7 Ra3 Ba6 Rg3 Bc8 Bb3 axb3 Rg5 hxg5 d4 Kd7 f6 Kc6 f7 Kd5 g7 Ke4 d5 e5 d6 c5 d7 a5 Nh3 a4 Rf1 c3 Qd6 c4 Rh1 a3 Qc5 b2 Rf1 a2 Qc7 a1B Qb6 c2 Rg1 c3 Qc7 Nf6 g8Q Ra2 Qg7 Be7 Rg2 Qf8 d8B Nbd7 Ng1 Nc5 Bd2 c1B Ke2 c2 Nh3 Bb7 Na3 b1Q Qh6 Nb3 Bf4 Be3 Qa5 c1B+ Ke1 Nd2 Rg1 Ba7 Nc4 Rc2 Kd1 Kd4 Qa6 e4 Bg3 e3 Rg2 Nfe4 Nb6 Ba8 Nd7 e2+ Ke1 Qa2 Nf4 Qe6 Ng6 Qg4 Ba5 Rg8 Bgc7 Bd8 Ne7 Rg6 Nc8 Rd6 Qg6 Be7 Qc6 Kd3 Bcb6 Baf6 Bd4 Bd8 Qa4 Bfe7 Bh8 Bb2 Qc6 Be5 Qa6+ Kd4 Rg3 Bd5 Rb3 Ba8 Rb2 Bc6 Nf6 Bh2 Nd7+ Nf6 Qh5 Bh1 f3 Ke3 Qg6 Kd4 Kf2 e1N Ke2 Rd5 Qb5 Rd6 Kd1 Ke3 Qa6 Nfe4
1kq1r3/8/q4p1n/1K1Q1r1r/nb2nR2/BP1Q1qp1/q1P2NNP/2n4R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 d6 exf4 Kf2 a3 Ke1 cxd6 Nh3 d5 Ng1 d4 e4 d5 Kd2 a2 Ne2 d3 Ng1 d4 Ke1 Bb7 Nd2 Bd5 exd5 Bc5 Bg2 Bf8 Rb1 a1Q Be4 Qa2 Ra1 Qb1 Bh7 Ne7 Bg8 Nxg8 d6 Kd7 b3 Kc8 Qf3 g5 Nc4 a5 Kd2 g3 Qg2 a4 Qh3+ g4 Nf3 g2 Nb2 g1N Ra3 f6 Qh5 g3 Ng5 f3 Nd1 f2 Qf7 f1R Qe8 Na6 d7+ Kb8 Nf3 Rh5 Qg6 Qc8 d8Q Ne2 Ra1 a3 Qe7 a2 Nh4 Rff5 Qee8 Bb4+ Nc3 Nh6 Qh7 Nc5 Qg7 Na4 Ba3 Nc1 Qe3 Qb2 Rb1 a1Q Qd7 Qaa2 Ng2 Qba1 Kd1 d2 Qd5 Ra6 Qef3 Re6 Ne4 Re8 Rf1 Nc5 Nf2 Ne4 Bb2 Qaa6 Ba3 Qa2 Rh1 Nd3 Ke2 d1N Ra1 N1b2 Raf1 Na4 Qe3 Nec3+ Kd2 Nc1 Qee4 d3 Ke3 d2 Kd4 Qd6 Qe3 d1Q+ Qd3 Kc7 Kc4 Ne4 Kb5 Kb8 Ng4 Qde6 Rf4 Qf3 Nf2 Qea6+
n1b1QR2/qp6/N1q2p1b/K2BPq2/3prB2/1n1PqP2/b3Nkn1/Q7 w - - 0 1 legal: proof: b4 g5 a4 e5 h4 gxh4 b5 e4 d3 Na6 Kd2 Rb8 a5 e3+ Kc3 Ra8 Qd2 exd2 Kb3 Rb8 c4 Ra8 Kc2 Rb8 b6 axb6 Ra3 b5 Rb3 bxc4 Rb2 Nc5 a6 c3 a7 cxb2 axb8Q Na6 Kc3 Ke7 g4 Ke6 e4 Ke5 g5 Kf4 g6 d5 e5 h5 g7 c5 Be2 h3 Na3 b1B Qd6 f6 Nc4 h4 Qe6 d4+ Kb3 h2 Ka4 h3 Bg4 Qd7+ Qc6 Rh4 Bh5 Ne7 g8Q Nc7 Ba3 d1N Qg7 Ba2 Nd6 c4 Qg6 c3 Nb5 c2 Bd6 c1Q Qf7 Na8 Qc7 Bh6 Bg4 Nc6 Qe8 Ne3 Qa5 Qf5 Nc7 Ng2 Bf8 Qe3 Bf3 Rg4 Qc3 Na5 Bd5 Nb3 Qa1 Rh4 Ne2+ Kg4 Rf1 h1Q Rg1 h2 Na6 Kh3 Bb4 Re4 Bd2 Kg4 Rc1 Kf3 Rc7 Qg1 Rf7 h1Q Rf8 Qc1 Kb5 Qc5+ Ka4 Qa7 Kb4 Nf4 Kb5 Kg2 f3 Kf2 Ka4 Qc1 Kb4 Ng2 Kb5 Qeg5 Bf4 Qe3 Kb4 Qg8 Ka4 Qge6 Kb5 Qc6+ Kb4 Nc5 Ka5 Nb3+
2n1RB2/1Pb2k1K/1r1PN1p1/1p1Rb3/2N1b3/bpQp1b2/p2nP2Q/5r2 w - - 0 1 legal: proof: f4 b5 c4 d5 d4 dxc4 b4 h5 g4 hxg4 a4 e6 a5 Nf6 d5 Ne4 d6 Nf2 Bg2 c5 f5 cxb4 Bd5 Qb6 axb6 exd5 Na3 Bxf5 Nb1 Bc8 Kd2 f5 Ke3 a5 Kf4 g3 Kg5 f4 Kg6 f3 h4 b3 b7 a4 h5 a3 h6 g2 h7 d4 Bf4 a2 Nc3 d3 Rb1 Ne4 Rb2 f2 Na4 f1B Bh6 c3 Qc1 c2 Rh4 Bf5+ Kh5 Kf7 Bf4 Ra6 Qa1 c1B Nc5 Nd7 Ne6 Nb6 Nf3 g1B Bh6 Nc8 Rc2 Bb6 Rc5 Nd2 Re4 Bg2 Rd5 Bc7 Qc3 g6+ Kg5 Rg8 h8Q Ba3 Re3 Bg7 Ne5+ Ke8 Nc4 Bf3 Re4 Be5 Bf8 Rb6 Qh2 Kf7 Re3 B5e4 Kh6 Bg2 Bg7 Rf8 Kh7 Ke8 Bh6 Rf1 Bg7 Kf7 Bf8 Bd4 Ng7 Bef3 Re8 Be5 Ne6 Bh1 Kh6 Be4 Kh7 Bhf3
n2q1nB1/1P2b3/4rQbq/q1qBR2R/nP3Q1n/k2rrrN1/3P3K/5r2 w - - 0 1 illegal: Other
3qBb2/r4nnR/N4Nk1/3Pr1r1/1QrP1n2/P1Q1bb2/1qqb3K/1q1B4 w - - 0 1 illegal: Other
Q6q/qP2QPPn/2b5/k1B1n1N1/n1Kn4/1Rbp1q1r/8/r2BrRbn w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 e4 b5 h4 bxa4 e5 gxh4 e6 fxe6 Nd2 e5 Nb3 axb3 Bb5 e4 Ba6 Qb6 Bf1 Qd8 Ke2 e5 g4 a5 c4 d5 f4 Kd7 g5 Kc6 f5 Kb6 f6 h5 b5 h3 g6 e3 Kd3 a4 g7 b2 c5+ Ka5 c6 b1R f7 h4 c7 a3 b6 h2 b7 h3 Qe2 e4+ Kc2 d3+ Kc3 d2 Qf2 d1N+ Kd4 e2 Be3 e1B Bc1 a2 Qe2 e3 Bb2 Nc6+ Kd3 d4 Bc1 Nf6 Qg2 e2 Qg5+ Ne5+ Kc2 Nb2 Kb3 d3 Qf5 Bc5 Qh7 Bc3 Bf4 e1N Bc1 N1f3 Qg6 Bd7 c8Q Nh7 Bg5 Bc6 Qe4 Re1 Rb1 a1Q Be7 Na4 Be2 Qf8 Bd1 Bf2 Ne2 Bg1 Nd4 Ra6 Qa8 Qb8 Bc2 Qa7 Rb2 Qd1 Ne6 Qe2 Ng5 Nd4+ Ka2 Qf3 Bd1 Be3 Rf1 h1Q Rb1 h2 Bc5 Bg1 Ka3 Qh5 Qh4 Q1f3 Rb3 h1N Ka2 Nf8 Qe4 Qh2+ Qe2 Rh3 Ka3 Nh7 Qe3 Ng4 Qe7 Ne5 Qg8 Rb6 Qed8 Nf8 Rb1 Rg3 Qe7 Qh8 Rb2 Nh7 Qa8 Rh3 Rb1 Ne6 Ka2 Rb2+ Ka3 Rbe2 Kb3 Ra2 Rb2 Ra1 Rb1 Ng4 Kc4 Nd4 Rb3 Ne5+
7b/Rqn1B1bn/2PPbr2/B2P1b2/n3Nb2/1bQK1k1p/3R1r2/r4Q1b w - - 0 1 illegal: Other
4b1Nk/R1qP1b2/Qr2rR2/1Q2nP2/K1rrn1P1/4qrp1/2BB4/3rb1r1 w - - 0 1 illegal: No possible last move, all moves rejected
7K/4br2/Q3N1R1/1rPn2P1/bq5p/1q1QBbPr/1kr1N2n/1b2qrB1 w - - 0 1 illegal: Other
5kB1/qq6/Nrbp1qn1/1P2bnQr/1P6/1q2rP2/3QR2N/1rn2RrK w - - 0 1 illegal: Other
b1nnb1q1/q2r1n2/2Pp2KR/3n4/1bBb2BP/1PQ5/1qQ1Nk1r/R5n1 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Ra3 g4 Ra2 exf6 Ra3 f5 Ra1 f4 Be3 h5 Kd2 Qb6 Nc3 Qd8 Bf2 Be7 Nd5 Bf8 Ne3 g3 Ng4 gxf2 Nh6 Be7 g4 Bc5 g5 Bf8 Ng4 hxg4 Kd3 Ke7 Ke4 Ke6 c4 f5+ Kd3 Ke5 e4 a5 g6 g3 g7 f3 h3 Kf4 c5 g2 b3 Kg3 e5 f4 Ke4 a3 Kf5 a4 e6 a2 e7 a3 e8Q d3 Qe6 d2 Qd6 Bb7 Bc4 f1N Qd4 f2 Rh2 f3 Be6 Ne3+ Kg6 f1N Rb1 a1B Rc1 f2 Rc3 a2 Qf6 Nc6 Bd5 Ra7 Qf5 Nge7+ Kg5 Ba8 g8B Nc8+ Qf6 Rc7 Nf3 g1N Qc1 d1B Nd4 Bh5 Qc2 Nd2 Bde6 f1Q Bc4 Qc1 Qd3 Qb2 Bgd5 Be8 Bf7 Ne4+ Kg6 Ned6 Nf3 Nd5 Rc1 Rh5 Rh1 Kf2 Qfc3 Be7 Nd4 Rh6+ Kg7 Ra7 Be6 Nf7 Bg4 Bd6 Nf3 Qg5+ Qg6 Ncd8 c6 Bb4 Nd4 d6 Ne2 Rd7 Rb1 Qe3 Qc2 Qa7 Re1 Rh7+ Kg6 Rh4 Q3d3 Qh8 Qdd2 Bd4 Qdc3 a1Q Rd1 Qb2 Ra1 Rh5 h4 Rf5 Rh3 Qf8 Re3 Rf4 Re6 Qg8+ Kh5 Rf3 Rg6 Rh3 Rh6 Qh8 Kg6 Rh2 Ra4 Qf8 Ra1 Qg8+
2q2n1K/nP3r2/2B1r1rN/NbbqQ1Br/n2Q1q2/2b3Pp/4nRP1/4k3 w - - 0 1 illegal: Other
3r3B/q1b1r3/P1nb2r1/2nrQ3/P1bRnPkp/b4n2/1r1N1K1Q/R3N3 w - - 0 1 illegal: Other
3N1qNn/q1b3B1/1n4RR/2q2rr1/6Q1/qP3p1K/1prP1PQ1/b1kb1q2 w - - 0 1 legal: proof: g4 h5 e4 d5 h4 a5 a4 f5 b3 b5 e5 bxa4 e6 g5 Rh2 gxh4 Rh3 c5 Ke2 f4 Kd3 f3 Rh1 c4+ Kd4 c3 Ra3 Bxe6 Ra2 Bc8 Na3 e6 Kd3 e5 Nc4 e4+ Ke3 Bb4 Ba3 Bf8 Kd4 e3 Bb4 Bd6 Qb1 a3 Qb2 Be7 Bd3 Bf8 Ra1 a2 Rb1 cxb2 Be4 dxe4+ Kc3 a1Q Rd1 Qa2 Ra1 Qb1 g5 Kd7 Kd4 Kc6+ Ke5 a4 Kf4 Kd5 g6 Kd4 c3+ Kd3 g7 Kc2 Nb6 a3 c4 e2 c5 e1R c6 e3 c7 e2 Rh3 a2 Bd6 Ne7 g8Q Ng6+ Ke4 Bf5+ Ke3 Qc1 Nc8 Ra5 Qg7 Rg8 Bh2 Nd7 Qh7 Nh8 Kf4 Bd6+ Ke3 Nb6 Qh6 Qf8 Qe6 Rg5 Rg3 h3 Qh6 h4 Rb1 a1B Qg7 Rf1 Qe7 e1Q+ Ne2 Bd3 Qe6 Raf5 Qg6 Kd1 Rg4 Bc2 Be5 h2 Bg7 h1Q Ne7 h3 c8Q h2 Ng8 Bc7 Rh4 Qg2 Rh6 h1Q Qce6 Qhg1 Qe4 Qg3 Qg4 Qgd6 Qg2 Qh1 Qh5 Qh3 Qhg4 Qa3 Rg6 Rh1 Rh6 Qf1 Nf4 Qh5 Ne6 Qhf7 Nd8 Qd7 Rg6 Qda4 Rh6 Qa7 Rg6 Ke1 Rh6 Bd1 Ke4 Qcc5 Rc1 Qcb5 Rcc6 Rhh5 Ke3 Rc5 Ke4 Rc2 Rcg6 Qbc5 Be5 Nf7 Kf4 Nh8+ Kg3 Rf5 Nf6 Rhg5 Kh3 Be2 Bc3 Kd1 Ng8 Kc1 Bg7 Bd1
1n3B1k/bQ2qR1B/4Rb2/p1p1Pb2/4PQ1r/1nn1r1P1/1r4N1/2K1nnq1 w - - 0 1 illegal: Other
n2q1Nbb/2q2P1r/q2qq2r/2k2K1B/2Bp2nP/5R2/P4p2/Q2rn1QR w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 g5 e5 g6 hxg6 Bd2 g5 Bc1 g4 e4 f6 f5 Rh7 Bf4 Rh8 Nd2 Ne7 Ndf3 exf4 e5 Ng8 e6 Rh3 Ne5 fxe5 Ba6 Rh4 Bf1 Rh8 Ke2 Ke7 Kd3 Kd6 Ke4 g5 h4 b5 c4 b3 f6 b4 e7 b2 e8Q b1Q+ Qc2 b3 Bg2 b2 Qf7 d3 Qc1 d2+ Qc2 d1Q Rh3 f3 Qh5 f2 Bh1 g3 Qh7 g2 Qf7 g4 Ra3 g3 Ra4 Rh7 Qe8 Na6 Ra3 Nc7 Nf3 g1Q Ne1 g2 Ra4 Qbc1 Qh5 b1R Rb4 Ra6 Qc3 Bg7 Rb8 Bh8 Qg6 Kc5 Qb2 Na8 Nf3 Nh6 Nd4 Ng4 Kf5 e4 Rb3 Qgf1 Rf3 g1Q f7 e3 Qg8 e2 Qg5 e1N Ne6+ Kc6 c5 d5 Qc3 d4 Qg7 Qde2 Qg8 Bb7 Nf8 Qg3 Qg6+ Kd5 c6 Qgd6 c7 Rab6 Qb2 Kc5 c8B Ba6 Bb7 Bd3+ Be4 Bc2 Bd3 Qee7 Bg2 Qce3 Qg5 Rd1 Rb1 Q6c7 Qa1 Rbh6 Bh3 Qed6 Rc1 Ne5 Bg4 Qfe2 Bh5 Ng4 Be4 Qea6 Bd3 Nf6 Qg1 Qe2 Kg5 Qee6 Bc4 Ng4+ Rf6 Rd2 Qh2 Ng2 Rh1 Rg7+ Ng6 Ne1 Qg3 Rd1 Qg1 Ne5 Kf4 Bf5 Nf8 Bh7 Rf5 Bg8 Ke4 Rgh7 Rf3 Qee7 Kf4 Ng4+ Kf5 Qee6+
1N1n3n/2pR3q/6Rp/n5QQ/1n1Bk1K1/rbn1N2P/PP1b1bq1/r2r4 w - - 0 1 legal: proof: e4 a5 c4 b5 g4 bxc4 g5 d5 g6 dxe4 Qb3 a4 Nf3 axb3 Ng1 fxg6 Be2 g5 Bd1 g4 Bc2 bxc2 Ke2 Kf7 d4 Kf6 f4 Kf5 d5 g5 h3 e5 d6 c3 d7 h6 Bd2 c1B Be3 g3 Na3 c2 Bc5 e3 Kf3 g4+ Ke2 e4 Bb4 g2 Bc5 g3 Bb6 Bc5 Nb5 Ne7 Nc3 Qg8 d8Q Nbc6 Qd6 Ng6 Nb1 Be6 Ba7 Qh7 Nd2 Nd8 Bb8 Bb3 Qd4 Ra3 Nc4 Bd2 Nf3 g1Q Nfe5 g2 Qd6 Rg8 Qe7 Nh8 Qh4 Rg6 Nd7 Rd6 Ba7 Qh2 Nb8 g1N+ Kf1 Ne2 Rd1 c1N Rg1 Nc3 Rg6 Rd5 Qg3 Rd4 Qg2 e2+ Kf2 e3+ Kf3 e1R Qg3 e2 Qh4 Qg1 Qh5+ Qg5 Bb6 Rd6 Ba7 Bf2 Bd4 Nd5 Rg8 Nc3 Ne3+ Ke6 Rg7 Qg1 Rg3 Qg2+ Kg4 Rh1 Qg5 e1N Qh5 Rd5 f5+ Kd6 f6 Ned3 f7 Nb4 f8Q+ Ke6 Nf5 Rd7 Qf6+ Kd5 Ne3+ Ke4 Qhf7 Ncd3 Q6g7 Nc5 Qg5 Ncb7 Qfh5 Na5 Rf1 Bg1 Rf7 Bf2 Rg7 Rd5 Rd7 Ra1 Qgg6+ Rf5 Kh4 Bg1 Qf6 Rff1 Rg6 Rfd1 Qfg5 Qh1 Kg3 Bf2+ Kg4 Qg2+
2K5/2N1P1N1/nr1rbQ2/1q5r/4nQ1q/3Pnpbb/2p2P2/nR1RBk1q w - - 0 1 legal: proof: c4 g5 b4 d5 h4 gxh4 c5 d4 b5 d3 b6 axb6 Rh2 bxc5 Rh3 c4 Rh1 c3 g3 e5 Bh3 e4 Be6 Be7 Kf1 Bf8 Bb3 e3 Bc2 dxc2 d3 Bd7 Qe1 Bc8 Qd2 exd2 Kg2 Kd7 Kf3 Kd6 Ke4 d1N a4 f5+ Kd4 h5 e4 c5+ Kc4 Ke5 Kb5 h3 g4 h4 a5 f4 g5 h2 a6 h3 a7 c4 g6 Na6 g7 Rh5 Ra4 Bd6 Ne2 Be6 Bd2 c1Q Ng1 c2 Bb4 c3 Na3 Qh4 Kb6 Ne3 Nb1 Rd8 a8Q Rd7 Bc5 Nf6 g8Q Qb2+ Ka7 c1N Ra3 b5+ Kb6 c2 Qg6 b4 Nc3 Nb3 Nb5 Na1 Qf8 b3 Nc7 f3 Kb7 Kf4 Qgh6+ Kg4 e5 Ne4 Qhf6 Qb1 Ne2 b2 Re1 h1Q Rd1 h2 Bb4 Kh3 Be1 Kg2 Rb3 Kf1 Nf4 Bf5 e6 Bh3 e7 Bf5 Ne6 Bg3 Ng7 Be6 Rb4 Qc1 Qg5 b1R Qff6 Qb2 Kc8 Qe5 Rd4 Rb6 Qff5 Qb5 Qgf4 Qg2 Rd2 h1B Qf6 Qg1 Rc4 Bg2 Rd1 Bgh3 Rb4 Qh1 Rbb1 Rdd6+
4rk2/N4N2/npn1bQ2/6P1/bbrPq1r1/1P1Qp3/nK3bBR/2n1nR2 w - - 0 1 legal: proof: c4 b5 e4 f5 a4 fxe4 h4 bxa4 b3 g5 c5 gxh4 Bb2 d6 Bg7 dxc5 Bd4 c4 Bb6 axb6 g4 e5 f4 c5 f5 h5 f6 h3 d3 h2 Kd2 h4 Kc1 a3 g5 e3 Qf3 c3 Qb7 a2 Qd5 e2 Qf3 e1N Nd2 h3 Be2 c2 Qf5 c4 Qf4 e4 Ngf3 Ra4 Nb1 Qd5 Qd2 Ne7 Qa5 Be6 Qc5 Nec6 Bd1 Na6 Rf1 h1R Nc3 h2 Rb1 a1B Nb5 Bd4 Na3 Bf2 d4 e3 Qb5 Bb4 f7+ Kf8 Ra1 Rg1 Ne5 h1B Bf3 Rg4 Ra2 Qe4 Kb2 c1N Bg2 c3+ Ka1 c2 Kb2 Qd5 Qd3 Qe4 Nb5 Rg8 Na7 Rh8 Ra1 Na2 Rd1 c1N Rd2 Bc5 Rc2 Rc4 Re2 Bb4 Rd2 Ke7 Rc2 Re8 f8Q+ Kd8 Qf4 Ke7 Nf7 Kf8 Qf6 Qe5 Bh3 Bhd5 Bg2 Qe4 Rd2 Bd7 Re2 B5e6 Bf3 Bh4 Rh2 Bf2 Bh1 Na5 Bf3 Ba4 Bg2 Nc6
1Nb2K2/B1p2Pn1/1n1br3/1P3q2/1n3PQ1/Nn5B/kpqQ2rR/1n1qq3 w - - 0 1 illegal: Other
K2N4/Nr1Qq2k/P4p2/nrn2R2/bBP1P3/q1q1n1B1/bbq1p1Q1/5b2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 g5 e3 gxh4 b5 f5 b6 f4 Na3 f3 Nb1 axb6 Bd3 b5 Bf1 b4 a4 Nc6 Be2 fxe2 f4 Ra5 f5 Ne5 f6 Nc6 Kd2 Ra7 Qe1 Kf7 Qd1 Ke6 f7 Nb8 Ra3 Ra6 Rc3 Ra8 Rc5 Kd6 Rf5 Ke6 Rf6+ exf6 Qf1 Kd6 Qd1 Ke7 Kd3 h5 Kc4 d5+ Kb5 h3 c4 d3 g4 d4 a5 b3 g5 h2 e4 h4 a6 b2 g6 d2 g7 h3 Qe1 d1B Nf3 d3 Ne5 d2 Qg3 Ra7 Qb3 Nd7 Nc3 b1Q Qb4+ Nc5 Na2 Qc2 Nf3 Rh5 Rf1 h1Q Ba3 h2 Qb1 Bh3 Rf2 Bf1 Ne1 Qf3 Bc1 h1Q Rg2 Qhh3 Qb4 Qa3 Qa5 Qhc3 Qa4 b6 Kc6 b5 Rg5 b4 Bb2 b3 Nb4 Rb7 Rf5 Ke6 Nf3 Qe7 Ba1 b2 Ne5 b1B Bb2 Ba2 Bc1 Nh6 g8Q Ng4 Qg6 Bh6 f8B Bf4 Nf7 Be5 Nd6 Rg5 Nc8 Rh5 Qg5 Kf7 Na7 Bd4 Nd5 Be5 Nc7 Bd4 Ne6 Ne5+ Kd5 Nc6 Qg2 Rg5 Nd8+ Kg6 Bb2 Na5 Qd7 Kh7 Bc1 Qg7 Bd6 Qe7 Bg3 Q2d3 Bb2 Ba4 Bc1 d1N Bd2 Qcc2 Bb4 Qe3 Bc7 Bb2 Bg3 Qg7 Kd6 Qec3 Kd5 Ne3+ Kd6 Rb5 Kc7 Qe7 Kc8 Rg7 Kc7 Ncb7 Kb8 Nc5+ Ka8 Qf8 Qd6 Rgb7 Qd7+ Qe7
1rQ1nqN1/4rkbP/p5b1/2R5/PrP2pnb/3BQ1qr/N1b3K1/2Rq4 w - - 0 1 legal: proof: f4 h5 e4 c5 b4 cxb4 g4 hxg4 e5 d6 Bb2 dxe5 Bd4 exf4 Bf2 Qd6 Bh4 Qd8 Bg3 fxg3 c4 g5 a4 b5 h4 e5 d4 f5 d5 f4 h5 a6 d6 e4 d7+ Kf7 h6 b3 Bg2 b2 Kf1 b4 Rh5 e3 Nc3 b1R Nh3 b3 Bh1 g2+ Kg1 e2 Rh4 e1R+ Kf2 g1B+ Kg2 g3 Ra3 g4 Nd5 b2 Rh5 Bf2 Qd3 Nc6 Nf6 Ne5 Ne4 Rb8 Qd4 Nf6 Qd2 Ne8 Nc3 Bg7 Rb3 Qe7 d8Q Bf5 Nd5 Qf8 Rc3 Bg6 Ne7 Re3 Qe2 Be1 Kf1 g2+ Kg1 Bh4+ Rc1 Rh7 Nf2 Rh3 Ne4 Rb4 Ng3 Rb8 Qe3 Rb4 Kf2 g1Q+ Ke2 Rb8 Ne4 g3 Qc8 g2 Ng8 Ng4 Nc3 Bc2 Rc5 Qf1+ Kd2 g1Q Na2 Bg6 Be4 Qe1+ Kd3 Rb4 Bf5 Qd1+ Ke4 Qge1 Rc6 Rb8 Rc5 Bd4 Nf6 Ke7 Nd7 Rf7 h7 Bg7 Ne5 Kf6 Nc6 Rd7 Ne7 Kf7 Ng8 Re7+ Re5 Rh1 Qe2 Rh2 Kf3 Rh3+ Kg2 Ra1 Qd7 b1B Qe3 Bc2 Qc8 Rab1 Bd3 R1b4 Rc5 Qg3+
2Q3n1/2r4q/2pPNP2/b2Rnk2/Q3p3/p3n1q1/PB2BrrR/b3Kb1q w - - 0 1 legal: proof: e4 b5 c4 bxc4 g4 f5 e5 fxg4 b4 cxb3 e6 h5 Nc3 g3 Nd5 dxe6 Ne3 e5 Ng4 hxg4 Ba6 e4 Be2 Qd7 Bf1 Qd8 d4 Kf7 f4 Ke6 h4 g5 d5+ Kf5 h5 e5 d6 a5 h6 g2 h7 b2 Ba6 b1Q Bb7 a4 Ba3 c6 Bc1 e3 Rh2 a3 Qc2+ e4 Rh4 g3 Ne2 g1B Ba6 g2 Qc3 g4 Qc4 g3 Bb7 Nd7 Qc2 Bg7 Qc3 Qc7 Rh3 Ra7 Rh1 Ne5 Ba8 Ba6 Qb2 Bc4 Nc3 e2 Qb8 Bb6 Bb7 Qe7 Ba6 Rc7 Qa7 g1Q+ Kd2 e1N Rh2 g2 Bb2 Be2 Nd5 Bf1 Be2 Nc2 Qa5 Ne3 Qa4 Qd3+ Ke1 Qh1 Rd1 g1R Rd2 Rg2 Rd1 Rd7 Nc7 Rf2 Ne6 Rc7 Rd2 Qh4 Rd1 Qg3 Rd2 Qa6 Rd5 Qa7 Bb5 Nf6 Be2 Rg8 h8Q Qb7 Qh4 Bh8 Qh6 Rg6 Qh7 Ng8 Qh3+ Kf6 f5 Qgg1 Qc4 Qc8 Ng7 Qd7 Bc1 N5g4 Ne6 Qh7 Nc5 Kg5 Qc2 Ba1 f6+ Ne5 Qc8 Qg4 Ne6+ Kf5 Qd1 Qgh3 Qb3 Rgg2 Bb2 Qg3 Qa4 Ba5+
b4Nq1/P3p3/3nQ3/q2P2P1/Kpr1qr1b/1npNn3/B4RBk/1rb1Q3 w - - 0 1 legal: proof: b4 a5 h4 axb4 e4 f5 a4 fxe4 c4 c5 Bd3 g5 Ba3 gxh4 Bf1 b3 Bb4 d6 Ra2 Qb6 Rc2 cxb4 c5 Qa5 c6 Qd8 Rc5 dxc5 d4 Kf7 Kd2 Kg6 g4 Kg5 f3 Kf4 a5 Kg3 c7 h5 f4 b5 f5 b2 Kc2 b3+ Kc3 e3 d5 h3 f6 b4+ Kc4 h4 Kb5 e2 f7 e1B a6 c4 a7 h2 Na3 b1N Qd4 c3 Bh3 b2 Qd2 Bb7 c8B Nd7 Qg5 Nd2 Nb1 Bh6 f8Q Nb3 Qh5 Bc1 g5 Nh6 Bg4 h3 Na3 b1R Nc2 Nf5 Nd4 Ne5 Ngf3 Nf7 Qg6 Rh4 Ne5 N7d6+ Ka4 Ne3 Bf3 Rf4 Rf1 h1Q Rf2 h2 Bf5 Rc8 Ne6 Rcc4 Nd3 Ba8 Bg2 Qf1 Qff7 h1Q Nf8 Kh2 Qge6 Qe2 Qe4 Qg4 Bh7 Qgc8 Qfe6 Qb6 Rf3 Bh4 Rf2 Nd1 Qe1 Ne3 Ng6 Qh8 Nf8 Qg8 Nc5 Rb2 Bb1 Qd8 Ba2 Rb1 Qd1 Qe1 Nd3 Qe2 Qe1 Qf3 Qd2 Qe4 Qe1 Qa5#
3b3N/1B4n1/bpPQNrKn/n2Pp2r/r3Qr2/2R1P3/kp2R2r/2b4q w - - 0 1 legal: proof: g4 c5 b4 f5 b5 fxg4 h3 gxh3 b6 c4 Rh2 axb6 Rh1 b5 Ba3 b4 Bb2 Ra3 Bc1 Ra8 Bb2 d6 Bd4 Ra6 Bc5 Bd7 c3 Ra4 Qb3 cxb3 c4 Bc8 Be3 Qa5 c5 Qd8 c6 Ra8 Bc5 dxc5 f4 Kf7 Kf2 Ke6 Kg3 Kd5 Kh4 Kc4 Kg5 e5+ Kh5 g5 a4 b2 d4 Kb3 e3 c4 d5 c3 f5 g4 a5 g3 a6 h2 a7 g2 f6 c2 f7 c1B Ra4 b6 Nf3 g1R Ne1 Nh6 Bd3 Rg4 Be4 Rf4 Na3 b1N Bg2 Na6 Be4 Ka2 Ng2 b3 Bg6 b2 Rb4 Be7 f8Q Nc7 Bc2 Ba6 Rd4 Nd2 Re1 h1R+ Nh4 Rhf1 Ng6 Ne8 Nb5 Nc4 Bf5 Na5 Nc7 R1f2 Qf6 Ng7+ Kg5 Qd7 Ne6 Bd8 Rd3 Rf8 Bh3 Rh2 Rc3 Qd6 Qe7 R8f6 Nh8 Qb4 Qc5 Qe4 Re2 Qh1 Qe7 Ng8 Bf5 h5 Qd6 h4 Bd3 h3 Bb5 Rb8 a8Q Nh6 Qb7 Ra4 Qc8 Rff4+ Kg6 Rb7 Bd3 Rbf7 Qcc7 Rf8 Qb4 R8f5 Qcd6 Rh5 Bf5 Rhf2 Qe4 h2 Nd4 R2f3 Bc8 Rf1 Bb7 Rf6+ Kh7 R1f4 Ne6 Qg2 Qd3 h1R Qe4 Qh3 Rd2 Rh2 Re2 Rf8 Kg6 Qf1 Rc4 Qh1 Rc3 R8f6+
b4Nq1/2Nrb3/b1B2Q2/2Rr1rQ1/PKP1b1BP/p7/2p2pn1/nq1bk3 w - - 0 1 illegal: No proof kernel
3k1rn1/R2rn1Q1/1N2bn2/pP1P1p2/N1q2Qr1/K1Pn2b1/p3RB2/4n1q1 w - - 0 1 legal: proof: h4 c5 b4 b5 e4 g5 a4 gxh4 f4 bxa4 e5 c4 e6 dxe6 f5 exf5 c3 e5 Bd3 e4 Bc2 f4 Bb3 cxb3 g4 h5 d4 f5 Kd2 a5 d5 h3 b5 h4 g5 e3+ Kd3 a3 Kc4 a2 g6 h2 g7 b2 Kb3 f3 Qd2 f2 Qe1 f1R Nh3 e2 Bg5 Rf4 Qf2 Be6 Rg1 Nh6 g8Q h1Q Qh2 Nc6 Na3 b1N Bf6 Qc7 Qhg3 Ra7 Be5 Nd2+ Kb2 Ne4 Nc2 Nf6 Bd4 Kd8 Nf2 h3 Nd3 h2 Na3 Re4 Rab1 e1N Nc5 Rf4 Qf7 Bd6 Nc4 Rf8 Ka3 Nhg8 Rb2 Re4 Rgg2 Qg1 Nb6 h1N Rbe2 Nf2 Be3 Nfd3 Bf2 Be5 Nca4 Rc4 Rh2 Rg4 Rh7 Qc8 Qe3 Bg3 Qf4 Qc7 Qg6 Qc8 Rb7 Nce7 Qg7 Qc4 Rc7 Ra8 Rb7 Rc8 Ra7 Rc7 Qe3 Rb7 Qf4 Rd7
2nB1nb1/N1Pn4/3Ppq2/2K3p1/3Npb2/krbr2Pq/2r2Q2/1r1Q1RB1 w - - 0 1 legal: proof: b4 c5 e4 cxb4 c4 h5 a4 f5 g3 fxe4 c5 a5 Bb2 d5 Bg2 h4 Qc1 h3 Ra3 hxg2 Qc4 dxc4 Bc1 Bh3 Rf3 Bc8 Rf6 b3 Rb6 Nc6 Rb5 Nb8 Rb4 axb4 Ke2 Kd7 Ke3 Kc6 f4 b5 h4 g5 d4 c3 h5 b2 h6 c2 h7 b3 f5 b4 a5 Kb5 d5 Ka4 Kd4 Be6 f6 Bg7 a6 Nd7 d6 Nf8 Be3 c1B Nf3 g1N Nc3+ Ka3 c6 b1R c7 b2 a7 b3 Ne5 Nf3+ Kc5 Qc8 Ng6 Ne5 f7 Ned7+ Kb5 Be5 Bg1 Bcf4 Ne2 Bc3 Ne5 Rd1 Ng4 b1Q Ne5 b2 Nd4 Rd3 Kc6 Rb8 a8Q+ Kb4 Qa6 Qf1 Qa1 Bb3 Qc1 b1R Qe1 Ka3 Qd1 Bc2 Kd5 R8b3 Nc6 Qd8 Na7 Qh3 Qf3 Bd1 Qf1 Bh5 Qd1 e6+ Kc4 Ng6 f8B Qf6 Be7 Ngf8 Bd8 Bf7 Ne2 Nb6+ Kc5 Ne7 Nd4 Nec8 Ne2 Rg8 h8Q R3b2 Nd4 Rc2 Qhh5 Rh8 Qhf3 Bg8 Rh2 Rb3 Rf2 Rh6 Rf1 Nbd7+ Kc6 Qhf5 Qfe2 Rh2 Qee1 Qh3 Qf2 Rc1 Qff3 Rhc2 Qf2 Ndb6 Kc5 Ra1 Bh2 Rab1 Bg1 Nbd7+
b2B3B/3PN1P1/KbQnnr2/3n2rQ/2q4p/7P/prN1p3/1bRr1kb1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 b5 a4 bxa4 b5 c5 Ra2 f5 Rb2 g6 Rb4 cxb4 Bd3 e3 Be4 Bb7 b6 Bc8 b7 fxe4 f5 Kf7 f6 Nc6 b8Q Ke8 Qe5 Nb8 Qf5 gxf5 Ke2 Kf7 d4 Ke6 g4 Kd5 h3 Kc4 g5 h5 f7 a5 c3 e5 g6 a3 d5 a2 d6 a1B d7 b3 Qc2 f4 Qa2 a4 Qa3 h4 Rh2 b2 Qe7 f3+ Kf1 Kd3 c4 f2 c5 e2+ Kg2 f1N Kf2 e1R c6 e3+ Kf3 a3 c7 e4+ Kf4 e2 Ke5 e3 Kd5 a2 Kc5 Nd2 Kb5 Rd1 Qg5 e1R Nc3 b1B Nce2 Bc5 f8B Bad4 Qd5 Na6 Ba3 Nc4 Qc6 Rf1 Bc1 Rf6 Bd2 Rh5 Bg7 Bb7 c8Q Rb8 Nf3 Rg5 Nc3 Bb6+ Nd5 Nc5 Ba5 Qc7 Qe8 Ba8 Rh1 Ke2 Ne7 Ne6+ Ka6 Nd6 Bh8 Kf2 g7 e2 Re1 Kg2 Rh1 Bg1 Nd4+ Kf1 Nc2 Rb7 Nf5 Ne7 Qh5 Nd5 Ne7 Bd4 Bb6 Qc8 Bd8 Rb2+ Ka5 Qc7+ Ka6 Bb6 Qc5 Rd3 Qc4 Kg2 Qc5 Bd4 Re1 Bg1 Rc1 Rd1 Qb5 Kf1 Qa4 Qc3 Qc6 Qc4+
2bq1qnb/4Q1r1/5n2/p1n1B1K1/RPQ2n2/rP1Pkr2/N3pp2/1R2r2N w - - 0 1 illegal: Other
1b5k/1P1Pp2B/p1Qnr1Pr/2pR3p/1qN1n1n1/BN3brq/7n/1K1Q4 w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 h4 gxh4 e4 f5 a5 fxe4 a6 bxa6 Ra2 a5 Rb2 a4 Rb3 axb3 d4 Kf7 Kd2 Kg7 g4 c5 f4 h5 f5 c3+ Ke2 c2 Kd2 a6 g5 e3+ Kc3 h3 Kb2 e2 b5 e1N b6 h2 b7 Nh6 d5 Qa5 d6 Qb4 Nc3 Nf3 Nb5 Nc6 Ka1 b2+ Ka2 b1N Bb2+ Ncd4 Qd2 c1R Na3 Re1 Nc4 Ng4 Bd3 Re6 Qd1 Nbd2 Ba3 Nb5 Ne2 Rhh6 f6+ Kh8 f7 Ne4 Nc1 Bg7 Nb3 Be5 Kb1 Bd7 Rg1 Rg8 f8Q h1Q Qc8 Bc6 d7 Bb8 Re1 Bd5 Qc6 Qh3 Rf1 Nfh2 Rf5 Nbd6 Re5 Nef6 Bh7 Bf3 Rf5 Nfe4 Rd5 Rf8 g6 Rf5 Qd3 Rg5 Qc2 Ngf6 Qe2 Rg3 Qd1 Nfg4
2nQn2K/3P1B1p/b7/p4q2/RN2q1N1/pPp1r1Q1/3k2Pp/2brb1bR w - - 0 1 legal: proof: h4 b5 f4 d5 a4 bxa4 e4 e5 c4 dxc4 b3 exf4 Bb2 g5 Bd4 gxh4 Be3 fxe3 Ke2 Ke7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 f5 d5 c5 d6 a5 Nh3 c3 Nd2 c4 Be2 a3 Rg1 f4 Qf1 c2 Re1 Kc3 Bd3 c1B Rh1 f3 Rh2 f2 Nf3 e2 Nd4 Nf6 Nc6 Ne8 Nb4 Kd2 Rh1 c3 Bc4 Ba6 Bf7 Nc6+ Kf5 Na7 e5 Bg7 e6 Nc8 e7 Bd4 d7 Rf8 Qg1 f1Q+ Nf2 h3 Qh2 Qb6 Qe5 h2 Qg3 Qe6+ Kg5 Qd5+ Kh6 Qe4 Ng4 Qff5 Ref1 e1B Rf4 Ng7 e8Q Bg1 Qd8 Ne8 Qe7 Rb8 Qd8 Rb5 Ne3 Rd5 Ng4 Nc7 Kg7 Re8 Rf3 Ree5 Kh8 Ne8 Rf4 Rd3 Bd5 Re3 Bf7 Rd5 Nc2 Qee6 Ra4 Qee4 Nb4 Ke2 Na2 Rd1 Nb4 Kd2
r4r1r/R3R1r1/P5n1/rp2p1Bk/1q1R3N/PNb1nP1B/4r3/2n2n1K w - - 0 1 legal: proof: e4 c5 c4 g5 h4 gxh4 d4 cxd4 b3 f5 c5 fxe4 c6 a6 c7 d6 Be2 Bd7 c8Q Ba4 bxa4 b6 Qc5 bxc5 Qb3 c4 Qb5+ axb5 Bd3 Bh6 Bf1 Bf8 g4 Kf7 a5 Kg6 a6 e5 f3 h5 Kf2 h3 g5 d3 Be2 h2 Kg2 h4 Bd2 c3 Be3 d5 Bc1 d2 Na3 d1R Nc4 d4 Nb2 e3 Nd3 c2 Nb2 h3+ Kg3 d3 Bf1 e2 Bg2 e1R Na4 d2 Nb6 Re2 Bf1 Qd4 Rb1 Nd7 Na4 Ngf6 Nc5 Ng4 Ra1 Qb4 Nb3 Kh5 g6 Ne3 g7 Bd6 g8R Nf8 Bg2 Ng6 Re8 Rf8 Re7 Rde1 Bf1 d1R a3 Rd4 Bd2 c1N Ra2 Rdf4 Rc2 Bc5 Rc4 Bd4 Rcc7 Bc3 Ra7 R4f7 Bg2 Rg7 Bf1 Nc4 Bg5 Ne3 Bg2 Rd1 Bf1 Rd4 Bg2 Red2 Ne2 Rdf4 Ned4 Re2 Re1 h1N+ Kh2 Ng3 Nf5 Ngf1+ Kh1 h2 Nh4 Qc5 Na1 Ra4 Rd1 Ra5 Rd4 Qb4 Nb3 Rgf7 Nf5 Rh7 Bh4 Rhh8 Bh3 Nf4 Bf6 Rg2 Nh4 Rg7 Bg5 Ng6 Rd3 Nc4 Kg2 Nce3+ Kf2 h1R Rd6 Ng3 Rd4 Rh2+ Kg1 Rc2 Rdd7 Ra2 Rd4 Ngf1 Kh1 Re2
q4nk1/r2r3N/1r3q2/2bP2rb/4r1P1/R1B1qb2/p3PRrn/NBR4K w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 h4 gxh4 f4 e5 a5 exf4 a6 bxa6 Qb3 a5 Qd3 a4 Qb3 axb3 Kf2 a5 d4 h5 d5 c5 b5 f5 b6 Kf7 g3 f3 b7 c3 Bg2 b2 Bh3 a4 Ra2 a3 Nd2 b1R Nf1 f4 Bg4 h3 Nh2 c4 Bd7 c2 Bb5 c3 Bd2 c1Q Be3 c2 Bb6 h4 Bc6 Nd7 b8R Nh6 Bd4 Rh7 Ba4 Rb6 Bc5 Qe3+ Kf1 c1R+ Bd1 f2 Rb2 a2 Rb7 Ng4 Rd2 Ra7 Rb2 Rc4 Bd6 Re4 Bb3 Kg8 Ba3 Bc5 Bb4 Nf8 Ba4 Rd7 Nhf3 h2 Kg2 f1R Ng5 f3+ Kh3 f2 Kg2 Re1 Rb3 f1R Bd2 Qf6 Nh7 Rf5 Nf3 Rg5 Bc3 Rb1 Rc1 h1B+ Kf1 h3 Ra3 h2 Bc2 Ra1 Bb1 Bg2+ Ke1 Bh1 Nd4 Bg2 Nb3 Bf3 Bc2 Rb1 Na1 R1b4 Kf1 Rbc4 Bb1 Rcd4 Be1 Rdb4 Bf2 h1Q+ Bg1 Qh4 Bf2 Rbc4 Kg1 Nh2 Rc7 Bh5 Kh1 Qc6 Rf1 Qa8 Be1 Qhf4 Bc3 Qf6 Rc1 Reg4 Rc6 Rcf4 Re6 Rf2 Re5 Rg2 Rf5 Re4 Rf3 Rf7 Rf4 Bcg4 Rf2 Bf3 g4 Rfd7
4n3/RN6/n1bP1bn1/1bP1qq2/1r2Nb2/1R3B1P/1rkbBKnp/5rB1 w - - 0 1 illegal: No proof kernel
N2r2N1/qq5n/1P1nr2p/1Brk2br/1K1P4/PR5r/bRq2b2/4RBq1 w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 c5 gxh4 c6 a5 b3 d5 d3 a4 Rh2 a3 Bb2 axb2 Qc1 d4 Qc3 dxc3 Rh3 bxc6 Rh2 c5 Rh1 c4 e4 Ke7 g4 Ke6 g5 c5 e5 f5 g6 h3 g7 f3 b4 f4 b5 f2+ Ke2 c2 Kd2 c1R a3 h2 Be2 f1Q Bf3 Nf6 g8R Qa5+ Nc3 b1Q Rg6 Nd7 Rg8 Qa7 Be4 f3 Rg4 f2 Nh3 Ne8 Na4 c3+ Ke3 c2 Kd2 c4 Kc3 Qg1 Nb2 f1R Bg6 Rfe1 Re4 Kd5 e6 Nd6 e7 Nf6 e8B Be6 Ra2 Rd8 Kb4 c3 Ng5 Bg8 Rh4 Re6 Rh3 Bh6 Nf7 Be3 d4 Bf2 Rg3 Re4 Rf3 Qg4 Kb3 Ke6 Rg1 h1R Re1 Rh3 Bc6 Qg1 Nh6 Re5 Ng4 h6 Bge8 Nh7 Nf6 Bf7 Be4 Reh5 B8c6 Rhe8 Ng8 Rd1 Rg3 c1B Bg2+ Bce3 Rf3 c2 Bf1 c1Q Rg3 Qe4 Kb4 Bg5 Na4 Qd2+ Rc3 Rc1 Rb2 Qde2 Rd3 Rc5 Nb6 Qc2 Na8 Re7 b6 Ree8 Ra1 Qeg2 Ba4 Qgb7 Re3+ Kd5 Rf3 Ke4 Bab5 Ba2 Re1+ Kd5 Rfb3 Re6
3b2b1/3B1b1N/1R1qBrPr/k4bnn/2R2N1N/r1n3p1/q1nPP2K/3q4 w - - 0 1 legal: proof: g4 d5 b4 e5 c4 dxc4 f4 exf4 g5 a5 Na3 axb4 Qc2 f3 Qf5 h6 Bb2 g6 Bf6 gxf5 g6 f4 Bg5 hxg5 Nb1 Ke7 Kf2 Kd7 Ke1 Ke8 Kf2 f5 a4 Kd7 h4 Kc6 h5 Kb6 h6 c5 h7 c3 Bg2 b3 Rh2 g4 Bh1 c4 Na3 b2 Rh3 b1Q Rh2 c2 Nb5 c1Q Nc7 c3 Ne6 c2 Rh4 Na6 Nd4 Be6 Nh3 Be7 Rh6 Bf7 Ng5 Nf6 Bg2 Qd6 Ne4 Ka5 Ra2 b5 Rb2 b4 Rh3 b3 Ne6 Nb4 Nf8 Qa2 Ng3 Nh5 Rh2 Bd8 Rb1 b2 Bh1 Qd1 Rc1 b1B Nf1 Bg8 Kg1 f2+ Kg2 Ra6 Ne3 f1B+ Kg1 f3 Ng2 f4 Rh3 f2+ Kh2 f3+ Nf4 Bg2 Rg3 f1R Rh3 f2 Rb3 Bb7 Bd5 Ra8 Be6 Bd5 Bd7 Bdf7 Be6 Nd5 Rb6 Ndf6 Bd7 Ne4 Be6 Ng5 Bd7 Bb3 Be6 Bf7 Bd7 Rg8 h8N Rg7 Be6 Rh7 Bd7 Bg8 Nf7 Rh6 Ne5 Bbf7 Nh7 Re1 Nf3 f1N+ Kg2 Ne3+ Kh2 Rf1 Nh4 Qe1 Rd1 c1N Be6 Nc2 Bd7 Nb3 Rc1 Nbd4 Be6 Nb5 Bd7 Kb4 a5 Qd1 a6 Ka5 a7 Nc3 Be6 Ne3 Bd7 Bf5 Be6 Nc2 Bd7 Rc8 a8B Rc4 Bd5 Ra4 B5e6 Ra3 Rcb1 Rf3 R1b4 Re3 Bd5 Re6 Rc4 Rf6 B5e6 g3+
2r1n1Rn/r1k1nN1n/8/4N2b/1B1Kn1r1/q1PPb2P/2pNB1b1/rn5R w - - 0 1 legal: proof: f4 d5 g4 e5 a4 exf4 b4 a5 c3 axb4 Na3 b3 g5 d4 g6 d3 Nb1 hxg6 Qc2 c5 Ra2 g5 Qb2 g4 Qa3 Be6 Rb2 Bc8 Qb4 cxb4 Rc2 dxc2 Kf2 Kd7 e4 f5 a5 g5 a6 b5 d3 g3+ Kf3 b2 a7 g4+ Ke2 g2 e5 g3 h3 f3+ Ke3 f4+ Ke4 b3 e6+ Kc7 e7 b4 e8R f2 Re6 f3 Rd6 Nc6 Kd5 Nh6 Bg5 Bg4 Nd2 b1N Ne2 g1N Ne4 g2 Bf4 b2 N4g3 b3 Bc1 Bh5 Bd2 Nf7 Kc4 Bh6 Nd4 Be3 Nde2 Qe7 Rg6 Rhc8 Kd5 Nh8 Nd4 Qa3 Kc4 Ne7 Bc1 Nd2+ Kb5 b1N Bb2 Ne4 Kc4 Nf6 Ne4 Nd2+ Kb5 Ne8 Nd6 Ne4 Be2 f1R Kc4 f2 Nf7 Ra1 Nf3 f1B Nd2 Nf3 Rg8 g1R Bc1 Bg2 Bb2 Qd6 Ba3 b2 Bb4 b1N Bc5 Neg6 Bb4 Qa6+ Kd5 Qa3 Kc4 Nfg5 Kd5 Rab8 Kc4 Rb7 a8N+ Kd7+ Kd5 Ra7 Nb6+ Kc7 Nd7 Nh7 Nde5 Ne7+ Kc4 Rf1 Nd8 Rf4 Ndf7 Nf5 Kd5 Rh4 Kc4 Rg4 Kd5 Ne7+ Kc4 Bg5 Kd4 Be3+
1r2qRB1/p2bnqqb/P3B1rn/1q3P2/3r4/2bbk1P1/K2N1N2/5RRr w - - 0 1 legal: proof: d4 g5 h4 gxh4 c4 e5 c5 e4 c6 bxc6 d5 cxd5 Qb3 d4 Qd1 d3 Kd2 f6 b3 Ba3 Bb2 Qe7 Be5 Qd8 Kc3 e3 Qd2 exd2 e4 Bc5 Bd4 Na6 e5 Bf8 e6 Nb8 Be5 fxe5 Kb2 Ke7 f4 Kf6 a4 Kf5 e7 Ke4 e8B d1B g3 c5 b4 h5 b5 d5 b6 d4 b7 h3 a5 h4 a6 d2 Bh5 c4 Ra4 d3 Ka2 h2 Bg2+ Ke3 Bf7 e4 Kb2 h3 Be6 c3+ Ka2 c2 Bg4 c1Q Nc3 Be2 Kb3 d1B+ Ka2 d2 Bf5 Bb4 Ra5 Nc6 b8R Qe8 Bg6 Bd3 Rb7 Rb8 Ra4 Nce7 Nce2 Qc3 Ra3 Bd7 Nc1 Nh6 Nce2 Rg8 Nc1 B1c2 Nf3 d1R Rb3 Qf7 Bf1 Qcg7 Bh7 Bc3 Rg1 h1Q Nd2 h2 Bh3 Qg2 Be6 h1R Rb1 Qe2 Ra1 Qeh5 Rb6 Qb5 Rf1 Qh8 Rc6 Rg6 Rc8 Qhg7 Rb1 Kd4 Rd8 e3 Bg8 e2 Rf8 e1Q Rg1 Ke3 Ra1 Be4 Nd3 Qe2 Nf2 Bcd3 Rf1 Qeh5 Rc1 Qe8 Rg1 Qhf5 Ra1 Qff7 Rb1 Rg4 Rc1 Bh7 f5 Rg6 Ra1 Rb1 Rf1 Rb4 Rg1 Re4 Raf1 Rd4
RR4qq/3K3n/1B1nr1P1/r2BbP1p/1r2rr1q/3P2p1/1NR2b2/2N1k2b w - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 a5 e4 axb4 h4 f5 h5 fxe4 h6 gxh6 Qb3 h5 Qc3 h4 Qg3 hxg3 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 Kg5 a4 c5 f3 h5 d3+ e3 a5 c3 a6 c2 a7 b3 Bb2 c1R Bh3 b4 Bf1 c4 Rh3 e2 Ra3 e1B Ra4 c3 Na3 c2 Ne2 Nd7+ Ke6 Nh6 Nb1 Bg7 Bd4 b2 Ra6 b3 Rh4 Re8 Bb6 Nf6+ Ke5 Bf2 Nd2 b1Q Bc7 b2 Bh3 Nh7+ Rf6 Nf5 Bb8 Qa2 Ng1 b1R Bc7 Qg8 Bb6 Rf1 Ne2 c1Q Nd4 Nd6 N2b3 Qc3 Nc1 Rb4 Bg2 Bb7 Rh1 e6 Rg1 Kh4 Bh1 Kh3 g5 Qc4 Nf5 Qh4 f4 Kg4 Rg2 Kf3 Na2 Ke2 g6 Ke1 Ne3 Re7 f5 Qh8 Nc1 Qdg8 Rh2 Bd5 Bf3 Bc6 Bg4 Bh1 Nc4 Ree8 Kf4 Re7 Rf8 Ba1 Rb8 Bg7 Rg2 e5+ Kf3 e4+ Kf4 Bgd4 Nb2 e3 Rh2 e2 Rg2 Q4f6 Bf3 Re6 Bd5 Be5+ Kf3 Nc4 Ke4 Qfd8 Bc6 Nd6+ Kd5 Qg5 Bb7 Qh4 Kc6 Bc5 Kc7 Rff4 Kd7 Bf2 Rh2 Kd2 Bd5 e1R Rg2 Ree4 Rh2 Ke1 Rg2 Bg1 Rc2 Bf2 Rd8 Rc8 a8R Rc5 Rdb8 Ra5
2q4n/1q2KB2/1n1rP1R1/1N2BprR/1p2n1kb/r1B2NPq/n4qbP/8 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 g5 Qa4 g4 Qa3 dxc6 Qc3 c5 Qf3 c4 e4 h5 a4 h4 g3 h3 Na3 Bd7 Qg2 hxg2 Rb1 Bf5 Rb3 Bc8 Rf3 gxf3 Kf2 Ke7 d4 Ke6 e5 Kf5 e6 b5 d5 c5 d6 b3 a5 b2 a6 b1Q a7 c3 d7 c2 Be2 c4 Bf1 c3 Bb2 c1R Nc2 Be7 Na1 c2 Bd4 Bh4 Nb3 Nh6 Bf6 Rg8 Na5 Rd1 Bc3 c1N Bh8 Kg4 Nb7 f5 Bg7 Rd6 Be5 Na2 Be2 Nf7 Bc3 Qc7 d8B Nh8 Bdf6 Rg5 Bfe5 Nd7 Bd1 b4 Ba4 Nb6 Be8 Qe4 Bf7 Rd5 Nd6 Bb7 Nb5 Qc8 Bb2 Rd6 Bbc3 Rb8 a8R Bc6 Ra5 Ra8 Ra7 Bd5 Re7 Ra3 Re8 Bb7 Rg8 Ba8 Rg6 Qeb7 Ne2 g1N Ned4 Ne2 Rg1 Qd8 Re1 Qdc8 Bd2 Nec3 Re4 Nca4 Bc3 Nc5 Kf1 f2 Ke2 f1Q+ Kd2 Nd3 Nf3 Nc5+ Kc2 Qg1 Rd4 Ne4 Kd3 Rc6 Rc4 Qf1+ Kd4 Qh3 Bb8 Rd6+ Ke5 Qa6 Rc7 Bc6 Re7 Qab7 Re8 Bd5 Reg8 Bc6 R8g7 Bd5 Rh7 Bc6 Rh5 Bd5 Nfd4 f3 Bc7 f2 Nf3 f1Q Bb8 Nd2 Kf6 Qf2 Bc7 Ne4+ Ke7 Nd2 Ne1 Bg2 Nf3 Qba8 Bb8 Ne4 Bc7 Rd8 Bf4 Rd6 Bfe5 Qab7+
1n3q1N/n1nr1q2/2Pr1P2/3p2p1/1B2Nb2/Rr3B2/2k1PKbq/nRB1r3 w - - 0 1 legal: proof: g4 f5 a4 fxg4 d4 h5 b4 e5 b5 exd4 Nh3 c5 b6 c4 Ra2 h4 Ra3 axb6 Qd2 b5 Rg3 hxg3 Qd3 cxd3 Ng1 b4 h4 Kf7 f4 Ke6 c4 g5 f5+ Ke5 a5 d5 c5 b5 a6 d2+ Kd1 g2 f6 g3 a7 b3 c6 b4 h5 b2 h6 b3 h7 Ne7 Nh3 g1Q Rh2 g2 Nf2 Bh3 Rh1 Qh2 Ne4 g1R Na3 b1R Nf2 b2 Nc2 Bg2 Ne1 Nc8 Nh3 Bd6 Nc2 Qf8 Nb4 Ke4 Nd3 Ke3 Nb4 Bf4 Kc2 d3+ Kc3 Rg8 h8B Rg7 Na6 Rd7 Kb3 Kd4 Nc5 d1N Na6 d2 Kc2 Nc3 Bg7 d1N Nc5 Nb5 Ne4 Ne3+ Kd2 Nc7 Ke1 Nc2+ Kf2 Na1 Bh6 Qf7 Bf8 Kc4 Bb4 Kb3 Nd6 Qf8 Nf7 Kc2 Nh8 Qf7 Bcd2 Re1 Be3 b1Q Bc1 Be4+ Bg2 Qa2 Be3 Qa3 Bed2 Rb1 Bc1 Re1 Rf1 Rb3 Rg1 Nba6 Rf1 Rb8 a8R Na7 Rh1 Rbd8 Rg1 Qh1 Bf3 Nb8 Rf1 Rd6 Rg1 R8d7 Rf1 Nc8 Ra5 Na7 Ra6 Qb2 Ra3 Qh2+ Bg2 Qe5 Ng1 Qg6 Bb2 Qg7 Nf3 Qf8 Nd2 Rc1 Rg1 Bf3 Ne4 Qe6 Rh1 Rd1 Rf1 Qef7 Re1 Rd4 Rb1 Rd1 Bc1 Re1 Ra6 Bg4 Ra4 Bh3 Ra3 Qh1 Bf3 Bg2 Nc5 Qhh6 Ne4 Qh2
N4R2/n3b2P/1p2bqqr/N5p1/K3nB2/1r1q1N2/Pb1R1P2/1k1Bq1rb w - - 0 1 legal: proof: c4 a5 g4 f5 e4 fxe4 b4 axb4 d4 c5 g5 cxd4 Na3 b3 Rb1 b2 Bd2 h5 Qg4 hxg4 Ke2 b6 Rc1 b1Q Rc3 Qb5 Rb3 Qxg5 Rb5 Qh6 Ra5 Qh3 Ra4 Qc3 Ra7 Qa1 h4 Kf7 c5 Kg6 h5+ Kf5 c6 g5 c7 d5 h6 e5 Nc2 g3 Ra4 g2 Nh3 g1R Be3 d3+ Kd2 d4 Ra5 Be6 c8N Qe8 Rd5 Qg6 Be2 Ra3 Rd7 Nc6 Rd6 Na7 Rd7 Be7 Bd1 Rb3 Rd6 Nf6 Bf4 Qc3+ Kc1 e3 Rh2 Ke4 Rd5 e2 Rd6 e1B Be2 d2+ Kd1 Qb2 Bf3+ Kd3 Rd7 e4 Na3 e3 Nd6 Ne4 Nac4 Kc3 Na5 Rh7 Ke2 Kc2 Nb5 Kb1 Nc7 Qc3 Bh5 Qc6 Na8 d3+ Kf3 e2 Ke3 d1Q Kd4 d2 Rh1 Rg4 Ng1 Rh8 Nf3 Rg1 Bg4 Qdc2 Rd8 d1B Rf8 B1b4 Rh3 e1Q Bh5 Ba3 h7 Rg8 Ne5 Be2 Rd3 Bf3 Rd2 Bh1 Bd1 Rg7 Nf3 Rf7 Bh2 Rf4 Bg3 Rh4 Bf4 Rh6 Re8 Bc8 Rf8 Qcf6+ Kd5 Qcb2 Kc4 Qbc3+ Kd5 Qce3 Kc4 Bb2 Rd6 Rc3+ Kb4 Rb3+ Ka4 Be6 Rd2 Qd3
2RbN1n1/1P2q1r1/1B1N1nP1/1K1P4/Rb1n4/1n2pq1N/b1p3B1/qkb3r1 w - - 0 1 legal: proof: c4 b5 f4 h5 e4 g5 a4 bxa4 g4 gxf4 g5 f5 c5 fxe4 Qg4 hxg4 c6 dxc6 Kf2 c5 Ke1 c4 Ke2 Kd7 b4 Ke6 d4 Kf5 h4 c5 h5 a5 h6 e5 g6 f3+ Ke3 c3 h7 g3 b5 f2 b6 a3 b7 c2 Ne2 c4 Nbc3 a2 Nb5 g2 Rh2 g1B Na3 a4 Rh4 c3 Rh1 Qe7 Rh4 Nd7 Nb1 a3 Bg2 Ndf6 Bf1 Be6 Bb2 c1B+ Nd2 c2 Rb1 a1N Rh6 a2 Bc3 Nb3 Nf4 a1Q Ke2 e3 Kd3 e2 Nh3 e1N+ Ke3 e4 Bg2 Nf3 Ba5 f1Q+ Nf2 Rd8 Bb6 Rd7 Rh2 Bc4 d5 Ke5 Rh1 Bh2 Nh3 Nfd4 Rb2 Bg3 Ra2 Bh4 Ra8 Qd1 Rc8 Qh5 Rf1 Rc7 Rf4 Bg5 Kf2 e3+ Ke1 Qf3 Ne4 Rd7 Nd6 Rc7 Ne8 Rd7 Rf5+ Ke4 Rf4+ Kd3 Rg4 Kc3 Rh4 Kb2 Re4 Nh6 Rf4 Kb1 Re4 Rg8 h8N Rg7 Nf7 Nhg8 Nfd6 Rc7 Rg4 Rc5 Rf4 Rb5 Rg4 Nc5 Rh4 Ba2 Rg4 Ncb3 Rh4 Nf5 Ra4 Rb4 Ra3 Rg4 Ra4 Qf4 Ke2 Nfd4+ Kd3 Qf3 Kc4 Bh4 Bh1 Rg1 Bg2 Qd7 Ne4 Bb4 N4d6 Qe7 Rd8 Qf7 Nc8 Nd7 Ncd6 Bg5 Rc8 Bd8 Rc5 Ndf6 Rc8 Nc6 Kb5 Qe6 Ra3 Qe7 Ra4 Ncd4+
1B2n1n1/1B3bKP/N2P2bB/N2R3R/4p3/1bq1rrp1/n2P1b2/1rr1n1k1 w - - 0 1 illegal: Other
nB4n1/1PbPq1Nr/7B/p5bp/1NB1K1b1/P1p1b1R1/R2r3r/nk3q2 w - - 0 1 legal: proof: f4 b5 c4 bxc4 e4 d6 e5 dxe5 g3 exf4 g4 f3 h4 Qd5 h5 Qd7 g5 Qd8 g6 hxg6 h6 Be6 Qc2 Bd7 Qf5 Bc8 Qh5 gxh5 Kf2 Kd7 Ke3 Kc6 b4 Kb5 d4 Ka4 h7 a5 d5 g5 d6 e5 a3 Kb3 b5 Kc2 b6 c5 b7 f5 Rh3 e4 Bg2 g4 Bb2 c3 Ne2 g3 Ra2 f2 Rh4 f1R Rh2 c4 Rh4 f4+ Kd4 f3 Rh1 e3 Nf4 f2 Nd5 e2 Nb6 e1N Bf3 g2 Ke5 g1B Ke4 Bg4 Nd7 Qe7+ Kd4 Na6 Rh2 Rd8 Rh3 Nc7 Nc5 Na8 Be2 Bh6 Ne6 Bh2 Re3 Bg5 Rg3 Rh1 Ng7 f1Q Ba1+ Kc1 Bd3 c2 Nc3 Rd7 Nd5 Kb1 Nb4 c3 Bc4 c1B Bb2 Bcd2 Bc1 Bde3+ Kd5 Nc2 Bd2 Qef8 Ke4 Na1 Bc1 Rf7 d7 Rf2 Rg2 Bc7 Rg3 Bef4 Be3 Rhh2 Ba7 Be3 Bb8 Nh6 Be6 Rd2 Bc4 Rg8 h8B Qe7+ Ne6 Rg6 Bg7 Ng8 Bh6 Rf6 Nc6 Rf7 Nb4 Qd6 Ng7 Re7+ Ne6 Rh7 Ng7 Qe7+
1r1nN2R/3K1rpn/2BP2r1/1P1p3b/Nk1B2R1/2b3Pp/3nbnNq/2r5 w - - 0 1 legal: proof: c4 e5 f4 exf4 h4 b5 a4 bxa4 d4 Qg5 h5 Qxh5 d5 Qh2 c5 Qh6 c6 dxc6 d6 Qh2 Qd5 cxd5 Kf2 Kd7 Kf3 Kc6 b4 Kb5 g3 f5 Bg2 c5 e4 h5 e5 a5 e6 a3 e7 h4 e8N a2 Ne2 a4 Rf1 h3 Rf2 c4 Ng1 a3 Be3 c3 Bd2 c2 Ne2 c1N Ng1 Be7 Rf1 Nd3 Ne2 Nf2 Rc1 Nc6 Bf1 Bf6 Rc2 Nd8 Bc3 Rh6 Bd4 Rg6 Bc5 Bc3 Bg2 Rb8 Ng1 Nf6 Ne2 Nh7 Bf1 Be6 Rd2 Bf7 Rd4 Ka4 Nd2 Kb5 Re1 a1R Nc4 a2 Nb2 Rc1 Na4 a1N Re4 Nb3 Bd4 Rf6 Re6 Rh6 Rg6 Kc4 Rg4 Bh5 Rd1 Kb5 Rd3 Rg6 Re3 Nc5 Re7 Nce4 Rf7 Kc4 Rf8 Kb3 Rh8 Kc4 Ng1+ Kb3 Bb5 Nd2+ Ke2 f3+ Ke3 Ka3 Kf4 Kb3 Ke5 f4 Bc6 Ka3 b5 Kb4 Rg5 Nd3+ Kf5 f2 Ne2 f1B Rg4 f3 Nf4 f2 Ng2 Be2 Rh4 f1R+ Rf4 Nf2 Rg4 Nf6 Ke5 Nf7+ Ke6 Nh7+ Kd7 Nd8 Ba7+ Nfe4 Be3 Rf5 Bd4 Nf2 Bb7 Rf8 Bc6 Rf7#
nr1nb3/2N1n3/2B1BRPk/2P1p3/qR3K1N/1pbpr2p/7P/N1q1n1r1 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Na3 g4 Be3 g3 Bf2 gxf2+ Kd2 exf6 Nb1 f5 Qe1 f4 Qc1 Bh6 Qd1 Bf8 e4 b5 c4 f5 a4 Kf7 g4 Kg6 e5 h5 g5 h4 a5 d6 a6 b3 e6 b2 c5 f3 e7 b4 e8N b3 a7 d3 Ke3 h3 Nc7 f4+ Ke4 Qd7 Ra5 Qa4+ Kd5 Bg7 Ne6 Bd7 Qc1 Bc3 Nd8 Be8 Nc6 Ne7+ Ke6 Kg7 g6 Kh6 Nd8 Nbc6 Rb5 Rb8 Bg2 f1N a8B f2 Be4 Ne3 Bf5 f1Q Nf3 Ng2 Na3 b1R Qe3 Qc1 Rf1 Ne1 Qe5 Rf8 Nh4 f3 Nc2 f2 Bg4 Rf3 Rb4 Re3 Kf6 Ra1 Ne6 Nd8 Nc7 Rb1 Bc6 Ra1 Rh1 f1N Be6 Nd2 Rf1 Nc4 Rf2 Rb1 Na1 Nb6 Rff4 Na8 Rf1 Nc8 Kf5 Ne7+ Kg4 Rb2 Rf5 Rg2+ Kf4 Rg1 Rf6 dxe5#
5nN1/2B1rP2/5N2/q1k3p1/n1p3KB/2bpnPnr/p1R1bB1P/1b2q1R1 w - - 0 1 illegal: Other
1br5/1Rrb1P2/1rQ2bP1/q3kq2/N7/PB2r1R1/q2b1QK1/5Q1n w - - 0 1 legal: proof: e4 g5 h4 gxh4 d4 a5 b4 axb4 c4 d5 c5 b5 c6 f5 exf5 b3 a3 b4 Bd2 b2 Nc3 b3 Na2 bxa2 Ba5 b1Q Bxc7 Qb2 Rc1 Qxd4 Bxb8 Qa1 Rc2 d4 Bc7 Qd6 Bd8 Qxd8 g4 Kf7 f4 Kf6 Kf2 h5 c7 e5 Ba6 e4 Rc4 e3+ Kg2 d3 Kh2 h3 Ra4 h4 Qd2 e2 Qb4 e1B Qb5 d2 Qb7 d1R Qd5 Bd6 Qe4 Rh6 Qe8 Rd3 Ra5 Bd7 c8Q Bb8 Qc5 Re3 Ne2 Bd2 Nc3 Ne7 Rb5 Qa5 Rg1 Ra7 Rg2 Rc7 Na4 Qf1 Bc8 a1B Rb7 Qd3 Kh1 h2 Rg3 Rh8 Kg2 h1R Qc2 Rb1 Qa2 Rb6 g5+ Kg7 g6 Kf6 Qb1 Qc4 Qf1 h3+ Kg1 h2+ Kg2 Qa2 Qf2 Bb5 Be6 Bd7 Bb3 Be5 Qg8 Ba1 Qd5 Rhc8 Qe4 Ng8 Qd5 Nh6 Qdf3 Ng4 Qc6+ Ke7 Qf1 Nf2 f6+ Ke8 f7+ Ke7 f5 Nh1 Qcc4 Kf6 f8Q+ Ke5 f6 Nf2 Bc2 Be1 Qcf7 Kf4 Qc5 Bec3 Bb3 Bb4 Qg1 h1Q+ Kf1 Qd5 Qc6 Bd2 Qf8 Qdc5 Kg2 Nh1 Qf7 Qh5 Qfc4+ Kf5 f7 Bf6 Qcf1+ Ke5 Qgf2 Qf5
Nrrb1b2/4Qb2/brbqP1Qq/5Q1B/np1PR3/n1q5/NP5k/3K4 w - - 0 1 legal: proof: h4 e5 f4 exf4 a4 g5 d3 gxh4 a5 Nc6 a6 Nb4 Be3 Na2 Bb6 d5 c4 axb6 cxd5 b5 Kd2 b4 Ke1 Nc1 Ra3 bxa3 a7 Na2 Qc1 Rxa7 Qd1 Ra8 g4 Kd7 e4 Kd6 g5 Ke5 d6 c5 d7 f5 g6 b5 g7 h5 Qc2 h3 Qa4 f3 d4+ Kf4 e5 Kg3 Qc2 f2+ Ke2 h4 Qd2 b4 Bg2 f1Q+ Ke3 f4+ Ke4 h2 Qc1 f3 Ke3 f2 Kd2 h3 Nf3 c4 Qc3 Ba6 Qd3 c3+ Kc2 Qc1+ Kb3 f1B Qc2 Bfc4+ Ka4 Rc8 Qb3 c2 Rf1 h1B Rf2 h2 Bf1 Nh6 g8Q+ Ng4 Bg2 Bf7 Qe6 Nc3+ Kb3 a2 Nfd2 a1R Re2 Na4 Nc4 Qe7 d8Q Qd6 Bh3 Bc6 Qf5 h1Q Re4 Kh2 e6 Ne5 Nb6 Nc4 Qgg6 Na3 Qe7 Qe3+ Nc3 c1B Bg4 Qhf3 Qa7 Qh6 Na8 Bg5 Bh5 Bd8 Qc7 Qd3 Qe7 Qdd2 Na2 Rc1 Qgg4 Rc5 Qg8 Rb5 Qgg6 Qe1 Re5 Rb6 Re4 Nc4 Kc2 Qc3+ Kd1 Na3 Qg7 Rg8 Qgh7 Rg5 Qfg6 Rgb5 Qf5 Rbb8 Qhg6 R5b6
1K1q4/N5k1/3nPp2/n3n1q1/3B1nbQ/PNQ1Qrr1/1r1q2bP/b5R1 w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 h5 g4 hxg4 a3 d5 cxd5 a5 Qb3 axb4 Qd1 b3 Ra2 bxa2 Nc3 a1Q Bg2 Qb1 Be4 Qa2 Bb1 Qxb1 Kf2 b5 e4 c5 d4 g5 e5 g3+ Kf3 c4 d6 b4 d5 g4+ Ke2 g2 Nf3 g1Q Nd4 b3 Qe1 f3+ Kd2 g3 Qe4 g2 Qe3 f2 Qh3 f1B Nf3 b2 Ne4 c3+ Kd1 c2+ Kd2 Nf6 Kc3 Bg7 Kb4 O-O d7 Qa2 d6 b1R+ Bb2 c1N Nd4 Nd3+ Kb5 Nc6 Qg3 Ne8 Qe3 Na5 Nd2 Nf4+ Kc5 Bf6 Nb5 Kg7 Bd4 Rb2 Na7 Rab8 Qc3 R8b3 Qe3 Rg8 Qc3 Qe3 Rg1 Qg3 Qe3 Rd3 Nb3 Qg5 Qf2 Rf3 Qe3 Qa1 Qc3 Qd1 Qe3 Qd2 Qc3 Qe7 d8Q Bg4 Qb6 Qd8 d7 Nd6 Na1 Bc4 Nb3 Bd5 e6 Be5 Qe3 Ba8 Qc7 f6 Kb6 Rh8 Ka6 Rhh3 Qc2 Rhg3 Qcc3 Qb8 d8Q Bc6 Qe8 Qd8 Qh5 Ba8 Rb1 g1N Qh4 Nge2 Rc1 Nd3 Re1 Nef4 Rg1 Rf1 Nc8 Bg2 Ka7 Rff3 Kb8 Qd7 Bb6 Bd4 Na7 Ne5 Qc5 Qd8+ Qc8 Rc2 Bc5 Ba1 Bd4 Qd7 Qc5 Rb2 Qcc3 Qd8+
2K2q1B/1Pp1bnB1/Q1b2P2/1bQ5/5bQb/5R1q/P1r1r1qq/2r1N2k w - - 0 1 legal: proof: c4 a5 f4 f5 e4 fxe4 g4 h5 f5 b6 c5 bxc5 Bb5 a4 Na3 Rh7 Nc4 Rh6 Ne3 Rh8 Rb1 Nc6 b4 d6 Rb3 axb3 Bc4 Nd4 f6 Nf5 gxf5 d5 Ng4 dxc4 Ke2 hxg4 Kf2 Qd5 Ke1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 h4 e5+ Kg5 e3 d4 Ke4 b5 b2 h5 b1B b6 c3 b7 g3 h6 g2 d5 e2 d6 e1Q d7 c2 h7 c4 Bb2 c1B+ Kg4 g5 f7 c3 f6 c2 Rh3 Bf4 Nf3 c1R Rh4 g1Q+ Kh3 Qee3 Qe2 Be7 f8Q Bd3 Qh6 Qf8 Qc2 Qh2+ Kg4 Ra4 Qd1 Rac4 Ba3 R4c2 Qd2 Bb5 Qg7 Nh6+ Kh5 g4 Kg6 g3 d8Q g2 Rh5 Bcd7 Ne1 Bdc6 Rf5 Qeh3 Qc3 Nf7 Qd6 Rg8 h8B g1Q+ Qg3 Qgf1 Qg5 Qfg2 Qc5 Re2 Qa7 Rcc2 Qa6 Ke3 Bc1+ Kf2 Ba3 Kg1 Bc5+ Be3 Rf3 e4 Qg4 Kh1 Kf5 Bc1 Ke6 Bf4 Qg5 e3 Bb4 Rc1 Qc5 Rec2 Bd2 e2 Be3 Bg3 Bh6 Bf4 Nd3 e1B B6g7 Bh4 Ne1 Be4 Bh6 Rg5 B6g7 Rd5 Qc3 Rdd2 Qc5 Bbd3 Kd7 Re2 Qcb6 Bb5+ Qc6 Nd8 Kc8 Bd5 Qd6 Bdc6 Qc5 Nf7+
b2QK2Q/PRR5/2r1bp2/P4Nq1/1Pn3k1/2n2rnq/1n1B1p2/2nq2Q1 w - - 0 1 illegal: Other
Q2q3q/2P1Qr2/2BB1b1N/1bp1q1P1/2K4n/b1p2r1P/1kbB1b2/1b2R3 w - - 0 1 legal: proof: d4 h5 g4 g5 b4 f5 e4 Nc6 f4 fxe4 a4 Na5 f5 Nc4 d5 Ne3 Nc3 c5 Nce2 Nc4 Nf4 gxf4 g5 Ne5 c3 a5 Ra2 axb4 Rg2 bxc3 Rg4 Nc6 dxc6 hxg4 Ke2 Kf7 a5 e5 c7 b5 a6 d5 f6 Ke6 a7 e3 Kd3 e4+ Kc2 g3 Kb3 g2 h3 d4 f7 Kd5 Rh2 e2 Bd2 e1B Bc1 f3 Rh1 d3 Be3 f2 Qe2 b4 Rh2 d2 Rh1 d1B+ Qc2 Be7 f8B Bf5 Bc1 e3 Bd2 e2 Bh6 Bf6 Rh2 Rh7 Bg7 Nh6 Nf3 g1B Be3 Bd2 Rh1 e1Q Bf8 Rf7 Bg2 f1Q Bf2 Bc1 Bd4 Bf2 Be3 Ba3 Bf4 Qe5 Ka4 Kc4 Rh2 b3 Nd4 b2 Rh1 b1B Bc6 Qd3 Bd6 Qh8 Re1 Raf8 a8Q Bh7 Qb8 Nf5 Qa8 Nh4 Nf5 Qdd4 Nh6 Qdd5 Be7 Qd8 Bd2 Be4 Ka5 Bg6 Qe4+ Kb3 Kb5 Kb2 Qe3 Ba4+ Kc4 Bgc2 Bd6 Be7 Rd1 Rf3 Rc1 Bf6 Re1 Rf7 Qe4 Qh2 Qe6 Qe5 Qe7 Bb5+
q1Qb4/4kp1p/Q1P2p2/1N2P2R/1K3N2/p1n1r1bB/n1bP3q/bb1Q4 w - - 0 1 legal: proof: h4 b5 f4 g5 c4 gxh4 a4 a5 b4 d6 c5 bxa4 f5 a3 f6 exf6 Bb2 a4 Bc3 Ra5 bxa5 Bb7 Ra2 Bc8 Rb2 c6 Rb5 cxb5 c6 b4 Bd4 Na6 Bb6 Nb8 Bc5 dxc5 e4 h3 g4 a2 g5 a1B a6 c4 a7 c3 a8Q c2 g6 c1B g7 h2 Ke2 b3 Qa6 a3 Ke3 b2 Nh3 Bf5 Qa8 Ne7 g8Q Nd7 Kd4 Ne5+ Kc3 Nd5+ Kb3 Nd3 Qb7 Qa8 Qc7 Nc3 Qgg4 Be7 Qb8+ Bd8 Bg2 Ke7 Qde2 Re8 Nf4 Bg6 Bh3 Bf5 Rf1 h1Q Qc8 Qh2 Qgf3 Nd5 Nc3 b1B Nb5 Bcb2 Rd1 Be5 Rh1 Nc3 Kc4 Nc1 Kb4 Bc2 Qd1 Bb1 Qfe2 Bec7 Nh5 Bg3 Nf4 Rg8 e5 Bfc2 Qf2 Rg4 Qb6 Rg5 Qba6 Rf5 Ng2 Rf3 Nf4 Re3 Bf1 Qf2 Rh5 Qh2 Bh3 N1a2+
1rNnn3/KP1nb3/b4R1P/r2Q4/1Qn3BR/1n3P1q/k2r1rR1/2n1nr2 w - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 g4 Bb5 g3 Nb1 fxe6 Bd3 e5 Bf1 e4 f3 h5 Be3 Kf7 Kd2 Ke8 Bf2 gxf2 g3 Qb6 g4 Qd8 g5 Nf6 Nc3 Ba6 Nd5 Ng8 Ne3 Bc8 Ng4 hxg4 b4 Kf7 c4 Ke6 h4 a5 c5 Kd5 g6 e5 h5 d3 Kc3 d2 b5 g3 b6 a3 c6 e3 h6 e2 g7 e1N c7 g2 Kb3 a2 Ka4 e4 Kb5 e3 Qc1 d1N Ne2 g1R Qd2+ Nd3 Qb4 a4 Qe1 a3 Rc1 a1N Rc2 a2 Bh3 f1R Rc3 Nb3 Rh2 a1N Rf2 N1b2 Bf5 Nc2 Nd4 e2 Bg4 Qh4 Qc1 e1N Qa1 Qh3 Qb1 Nf6 g8R Ne8 Rh2 Rg2 Rg6 Nc4 Rg7 Ba6+ Ka4 Be7 c8Q Ncb4 b7 Ndc1 Rh7 N4c6 Qd8 Rgf2 Nb5 d6 Na7 Nd7 Rd3+ Kc5 Rd2 d5 Rg2 d4 Nc8 d3 Rf7 Rg8 Re2 d2 Re4 d1R Rf6 Rg5 Qb2 Rb8 Qd2 Re5 Qc3 Kd5 Qb4 Rdd2 Ref4 Re4 Qda5+ Kd4 Qf5 Nd8 Qfc5+ Kd3 Qd4+ Kc2 Qd5 Re5 Re4 Kb2 Rd4 Ncd6 Re4 Bd3 Ref4 Nc4 Kb5 Ka2 Ka6 Nca5+ Ka7 Ba6 Be6 Rg5 Rh4 Nc4 Bg4 Re5 Qe6 Rc5 Qd5 Ra5
1r1r3n/1n1kbq1P/1Q1P3b/6br/qr1r2N1/rr1Q4/B1PK1N1N/3R1b2 w - - 0 1 legal: proof: b4 a5 f4 axb4 a4 c5 g4 e5 e4 exf4 g5 d6 g6 hxg6 e5 g5 e6 g4 Ra3 c4 Rb3 cxb3 Bb2 Be7 Bc3 Bf8 Be5 dxe5 h4 b5 d4 g5 h5 f5 d5 b2 h6 f3 h7 b3 e7 e4 d6 f2+ Ke2 f4 a5 g3 a6 f3+ Kd2 b4 a7 e3+ Kd3 e2 Bh3 f1Q Nd2 b1R Nc4 e1B+ Ke3 f2 Qd3 b2 Qc3 g2 Qd4 g4 Na3 g3 Qc5 b3 Qf5 Na6 Qf3 Nh6 Qd1 Qa5 Bf5 Nf7 Qc1 Bd2+ Kf3 Bdh6 Rh4 Nc5 Nc4 Ba6 Bg6 Kd7 e8N Be7 Nc7 Rhd8 Nh3 g1R Be4 g2 Ne8 Nh8 Qg5 Rh1 Ke3 g1B Bb7 Ra1 Rg4 b1R Nd2 b2 Bd5 Nb7 Rd4 Rab8 Nf3 Ra3+ Bb3 Rh2 Rd1 Qa4 Kd2 Qfc4 Qf4 Qf7 Qe3 Rh1 Ba2 f1R Ng7 Bf2 Nh5 Bfh4 Nf6+ Kc8 Re1 B4g5 Ng4 Kd7 Rd1 Bd3 Nhg1 Rh5 Nh3 Bc4 Nfh2 Rf4 Nhf2 Bf1 Qg3 Ra1 a8Q b1R Qa6 Re3 Bb3 Ra3 Ba2 Rbb4 Qb6 Reb3 Qd3 Rfd4+
5N2/bQ1BQ3/1r1r4/qnr4R/2PbnkNr/n1PP4/1KbbQ1nb/7n w - - 0 1 illegal: Other
2q3QQ/1B1qb1n1/4rb2/N2PbbP1/1R1P1qk1/4q3/nKr3n1/2NN1rr1 w - - 0 1 illegal: Other
1Q2b3/3rk1qN/1b2p1P1/r2n3Q/2K2b2/2qn2R1/bPqBP2N/1n3rNb w - - 0 1 illegal: No possible last move
q2b2nK/2R4q/2Pn1r1P/1Q1qrp1b/1bR2n1k/1nQQP3/n7/1n2NB2 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Nd2 h5 Ndf3 Ke7 Be3 Ke8 Bf2 Ra3 Ne5 Ra8 Kd2 g3 Ng4 gxf2 Ne3 Ra6 g4 Ra3 g5 Ra8 Ng4 hxg4 Kd3 Ke7 Ke4 b5 Ke5 d5 c4 d3 h4 g3 a4 b3 h5 b4 h6 d2 a5 d4 g6 b2 g7 b1N c5 g2 c6 f3 a6 b3 a7 b2 Ra2 d3 Ra6 Bg4 Rh5 Nd7+ Kd5 Kf6 Rb6 Nc5+ Kc4 Nb7 Qb3 d1N Ra6 d2 Qa4 Bb4 Qb5 Ndc3 Qa5 d1Q Qc5 Na2 Rg5 Bh5 Ra4 Q1d5+ Kb5 Nd6+ Ka6 Rb8 a8Q Rb5 Qaa7 Qa8 Re5 Rh7 Re7 Kg5 Rc7 Kh4 Qc3 Nd2 Qd3 b1N e3 Nb3 Qc3 Ra5+ Kb6 f5 Be2 f1N Qb7 Ng3 Bf1 f2 Qa6 Rc5 Qb5 Ne2 Qbd3 Nf4 Nf3+ Kg3 Ne1 g1B Qb5 Bh2 Qbd3 Kh4 Qb5 Ne7 g8Q Rf7 Qd8 Rf6 Qd7 Ng8 Qd8 Ba3 Rc4 Qf7 Qd7 Re5 Qd8 Qh7 Qd7 Nf7 Qd1 Bb4 Qdd3 Qd8 Kb7 Qd5 Kc8 Nd6+ Kd8 Ne7 Be2 f1Q Kd7 Qfg2 Bf1 Qb2 Kd8 Qa3 Kd7 Nf7+ Ke8 Qa8+ Rc8 Bg3 Kf8 Ng8+ Qc5 Ba5 Qb5 Bd8 Rc7 Nd6+ Rf7 Ree6 Nc2 Nb4 Qa1 Rg6 Rc7 Be1 Qaa5 Bc3 Ne1 Re5 Qa1 Na2 Qb2 Bb4 Qbc3 Qd7 Qa1 Ne7 Qac3 Rf6+ Kg7 Ng8+ Kh8 Qh7+
q1B1Q1r1/4K1R1/pq2n1q1/1qRqqN2/r1P1PQ2/1nbR4/1b2Pr2/4k2b w - - 0 1 illegal: Other
1B1r1q2/3qQB2/rPrB4/8/4RqnP/q1P1Q3/1knpb3/Nn1qnKb1 w - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 c5 g4 cxd4 a4 bxa4 Ra3 Nf6 Rg3 Ng8 Nc3 g6 Nce2 fxe4 f5 g5 Nf4 gxf4 g5 Bh6 Rg2 Bf8 Rg4 hxg4 h4 Kf7 f6 Ke6 b5 Kd5 f7 e5 c3 a5 g6 d3 g7 Kc4 b6 d5 Ba3 d4 Rh2 g3 Qf3 Kb3 Qg2 d2+ Ke2 e3 Bb4 d3+ Kf3 d1Q+ Qe2 g2 Nh3 g1R Bc5 a3 Rh1 a2 Rh2 a1N Ng5 d2 Nh7 a4 Rf2 a3 Bd4 a2 Nf6 Na6 Nd7 Nb4 Rh2 Ra6 Nb8 Nf6 g8Q Nbc2 Rh1 Kb2 Nd7 Ng4 Qg7 Na3 Bc5 N1c2 Bh3 a1Q Qg8 Nb1 Nb8 Bb7+ Nc6 Qa3 Qg6 Qd7 Bd4 Bc5 Bg2 Rd8 f8B Qf1+ Qf2 e2 Qh6 e1Q Qg5 Ba8 Bd6 Qd1+ Ke4 f3 Qfe3 f2 Qe7 Qc4 Rh2 Qg8 Kd3 Qf8 Na5 Bf3 Nb3 Rf1 Na1 e4+ Kc4 Qf4 B4e5 Re1 Bh3 f1Q+ Re2 Qf8 Bb8 Qf2 Bg2 Qg3 Bed6 Qgf4 Qf2 e3+ Kd3 Rg1 Re1 e2 Qfe3 Nf6 Bh3 Rg6 Be6 Ng4 Bf7 Bd4 Bdc7 Rc6 Bd6 Nh6 Rg1 Bc5 Rg5 Ng4 Re5 Bd4 Re6 Bc5 Re4 e1N+ Kc4 Bh1 Qg3 Nf3 Kd3 Bg1 Qf2 Qc1 Ke2 Nfe1 Kf1 Bf3 Qd4 Qd1 Qe3 Be2+
r2n1N1q/K1bP4/bQb1p2q/4P1P1/2N3nR/Q2b1BQr/4nnq1/2b1k3 w - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 f4 dxc4 g4 h5 f5 h4 Ra3 bxa3 Bb2 g6 Bd4 gxf5 Bf2 f4 Bg3 hxg3 h4 Kd7 e4 Kc6 Ke2 Kc5 d4+ Kb4 g5 c5 h5 b5 d5 f5 a5 c3 Kd3 e6 e5 a2 h6 a1Q d6 g2 h7 c4+ Kd4 c2+ Nc3 c1N d7 f3 a6 f4 a7 f2 Qg4 f3 Qh5 Ba6 Qg6 Nf6 Qe4 Nd3 Rh3 Bd6 Qf4 Bc7 Qe4 Nc6+ Ke3 Ng4+ Kd2 Qg8 Rh2 Nd8 Nge2 g1N Nc1 Ne2 Bg2 f1Q Qe3 f2 Bf3 Qg2 Nb3 f1B Ne4 Ndf2 Nf6 c3+ Kc2 Kc4 Qb6 b4 Rh4 Qa4 Nh5 Qf8 Nf4 Qh6 Ng6 Bb7 Nf8 Bc6 Ng6 Qa5 Nf8 Qc5 Na5+ Kd4 Kb3 Kd3 Nb7 Kd2 Nd6 c2 Nc4+ Kd1 Rh1 c1B Rh4 Rb8 a8Q Ke1 Qa3 Ra8 Ne3 Qe7 Kc4 Qef6 Kc5 b3 Nc4 b2 Qa2 b1B Qa3 Rg8 h8Q Bd3 Qh7 Qfg7 Qe4 Rh8 Qf4 Qhf6 Qh2 Rh5 Qh3 Qgh6 Qg3 Qfh8 Kb4 Rb8 Ka5 Rc8 Ka6 Rb8 Rh1 Rh3 Ka7 Bc2 Rh2 Nd4 Qb7 Rh5 Nd6 Ba6 Qb1 Bcd3 Qb6 Ne2 Nc4 Rh3 Qf4 Rg3 Rh4 Rh3 Qg3 Ra8#
q3Nq1k/P3Pnb1/1rQ3R1/2b2qB1/Nnrr4/K3r3/2rPpQ2/3b1b1N w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 f5 g5 Ra2 gxh4 e4 Ne7 Be2 Ng8 Ra3 Qd7 Bh5 Ke7 Rf3 Qe6 Rf4 exf4 e5 Qd5 e6 Kd8 e7+ Kd7 Bf3 Qd4 Bd5 Qd3 Be6+ fxe6 Rh2 Ke8 Rh3 Qd8 Rh1 Kd7 g4 Ke8 f6 Kf7 g5 c5 a5 h5 a6 b5 a7 h3 Qb3 h4 Kd1 h2 Kc2 h3 Kb2 f3 Qd3 e5 Ka2 f2 Nc3 f1B Nb1 c3 Qh7+ Bg7 Qe4 b3+ Ka3 b2 Nf3 c2 Ng1 c4 Nc3 b1Q Qf4 e4 Qg4 e3 Qd1 b4+ Ka4 b3 Qe1 b2 Kb4 Qf8 Ka4 Nh6 g6+ Kg8 Qf2 Nf7 Kb4 Rh4 Nge2 Nc6+ Ka4 Nb4 Qf3 Bg4 Nf4 Rc8 Na2 c3 Ne2 Kh8 Qd5 Rc4 Rg1 h1R Ka3 h2 Ng3 Bd1 Qc6 e2 Rg2 Rg1 Nh1 Rhd4 Rg5 Rg3 Rg4 Ng5 f7 Re3 Rg2 Qa1 Rg3 b1R Bb2 c1R Rg4 c2+ Bc3 Qg8 f8Q Nf7 Rg2 Rb2 Rg5 Qb1 Rg3 Ng5 Qf2 Nf7 Rg2 Qf8 Rg1 Be5 Rg4 Bd6 Rg1 Bc5 g7+ Kh7 g8N Kh8 Rg6 Rb3+ Ka4 Rb2 Nf6 Rb3 Ng3 h1Q Ne8 Qd5 Nh1 Qd8 Qff3 Qa8 Qg2 Re6 Bb2 Rbe3 Nc3 Rf6 Qf2 Rfd6 Qd7 Rb6 Kb3 Qa1 Qc6 Qa5 Qd6 Qb5 Ka3 Qd7 Qc6 Qf5 Qe1 Rb1 Ba1 Rb2 Qg3 c1B Qf2 Re5 Na4 Rbc2+ Kb3 Rd6 Bd4 Bb2 Be3 Rdd4 Bg5 Bc3 Ka3 Re6 Kb3 Re3 Ka3 Rd7 Nf6 Rd5 Ne8 Bg7+ Nc3 Re6 Na4 Rdd4 Ng3 Re5 Nh1 Re3+
6b1/nb1QB1b1/2qP1pq1/Qr4qR/PK1Nn2b/7r/1kBr1PQn/6q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 a4 d5 g4 dxe4 h4 g5 c3 bxc3 d3 h6 Nd2 Bf5 Ndf3 Bd7 h5 Be6 Nh4 Bc8 Ra2 gxh4 g5 Qd7 g6 Nf6 Rb2 Qd8 Rb5 Ng8 Rg5 hxg5 h6 Kd7 d4 Kc6 g7 Kd5 h7 b5 Bf4 e5 Nh3 c5 Qc2 c4 Qc1 b4 Bg2 g4 Bg3 b3 Qd2 b2 Ng5 b1R+ Qc1 h3 Rf1 h2 Bh4 h1B Qd1 c2 Kd2 c1B+ Kc3 g3 Qf3 Nc6 Rd1 Nf6 g8Q Rb5 Qg7 Bb7 Bf1 g2 Bg3 g1Q Be2 Na7 Qg6 Bg7 Qfh5 e3 Bg4 e4 Bd7 e2 Rd2 e1Q Qh4 e3 Qhh5 e2 Bd6 Ne4+ Kc2 c3 Bb4 Kc4 Nh3 Qdg5 d5 f6 Rd3 Rad8 Be7 Q1g4 Rg3 Qg1 Nf4 Q4f5 Qf7 Qfg6 Ne6 Bf4 Rd3 Bg3 Nd4 Bh4 Bf5 Rd7 Rh3 e1N+ Kd1 Nf3+ Kc2 Rd6 Qg4 Nh2 Qg2 Rd7 Qe6 Rd6 Qd7 Kb4 Kd3 Ka3 Kc4 Ka2 Qd8 c2 Qd7 Rdb6 d6 Kb2 Bg4 Rd5 Bd1 c1Q+ Bc2 Rbb5 Rf3 Re8 h8Q Rb8 Qh5 Rh8 Rf5 Rh7 Nb3 Rd2 Nd4 Rh8 Qgg4 Bf3 Qg2 Bg4 Re5 Be6+ Rd5 Rc5+ Kb4 Bg8 Qe2 Rh5 Qeb5 Rc3 Qa5 Rh3 Bd1 Qc6 Bc2 Qg4 Rg5 Qf4 Rg3 Rf5 Rg5 Qg3 Rh5 Q3g5 Bd8 Rc5 Be7 Rb5+
5QR1/3r2N1/q1R1P3/b1pB4/bbnKnbrr/2PPr3/k5n1/1R1Qbb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 b5 c5 Nc3 e5 Na2 exf4 Nb4 cxb4 Kf2 Ke7 e4 Ke6 h4 g5 e5 Kd5 e6 a5 b6 f5 h5 b3 h6 g3+ Kf3 a3 h7 g4+ Ke2 Kc4 b7 a2 Rh6 b2 Bh3 b1R Rh4 g2 Ba3 g3 Be7 a4 Qe1 a3 Qd1 Qa5 Qe1 Nc6 b8Q Ra7 Bf6 Rb3 Rh6 f3+ Kd1 f4 Rh5 f2 Ke2 f1N Rb5 f3+ Kd1 f2 Ke2 Ne5 Rb7 Ne3 Bf5 Bb4 Nh3 g1B Nf4 g2 Nh5 d6 Be7 Nf6 Ng3 Ne4 Bg5 Bd7 Rb5 Bh2 Qf1 g1R Bf6 Ng2 Rb6 Ba4 Qb7 Qa6 Qg7 Rd7 Nh5 Bf4 Rb1 a1B Qf8 a2 Qd1 Bac3 Ng7 a1B Bg4 Ba5 Bf3 Bcb4 Bg5 Bac3 Rc6+ Kb5 Bd8 Nc4 Kd3 Ra3 Bb6 f1B+ Be2 Nh4 Bc5 Rg4 Qe1 Ng2 Qd1 Rg8 h8R Rh4 Nf5 Rgg4 Ng7 Bg3 Rg8 Bce5+ Rb3 Bef4 Kd4 Be1 Rb1 Re3 c3 Bc2 d3 Ka4 Qc8 Ka3 Bf3 Ba4 Qb8 Ka2 Qf8 Ned2 Bd5 Ne4 Qf5 Bh6 Qf6 Bf4 Qf8 dxc5+
1b2rb2/2r1RQrk/5b1n/1QQK3n/N1R1pPb1/2r2BP1/4P2n/2q3rn w - - 0 1 legal: proof: b4 f5 d4 c5 h4 cxd4 a4 a5 h5 axb4 g3 f4 Ba3 bxa3 Nc3 f3 Nd5 g6 Ne3 gxh5 Ng2 fxg2 Qc1 h4 Qb1 Ra5 Qd1 Ra8 Kd2 Kf7 Kd3 Kg7 Ke4 h5 f4 d5+ Ke5 b5 c4 b4 c5 d3 c6 d4 c7 b3 a5 a2 a6 d2 a7 h3 Ke4 e5 Qc2 d1N Qc4 h2 Qc2 b2 Rc1 b1R Qb2 a1B Rc5 d3 Rc6 h4 Rb6 h3 Qa2 d2 Ra6 Rh7 Qa5 Bg4 c8Q Qc7 Qe8 Ne3 Rd6 d1R Qea4 Rb7 Rd5 Rc1 Qe1 Nd7 Qab4 Rc3 Rd6 Re8 a8Q Nh6 Nf3 g1B Bg2 Nf1 Qeb1 Ba7 Ne1 Bb8 Kd5 e4 Nd3 Kg8 Bf3 Rg7 Rb6 Kh7 Nb2 Qc8 Qc5 Rc7 Rg1 h1R Na4 Nh2 Rc1 Rg1 Qa7 Bb2 Re6 Nf6+ Kd4 Nh5 Re7 Rd3+ Kc4 Bf6 Qb5 Rc3+ Kd5 Qa6 Nb6 Qa3 Na4 Qb2 Rc2 Qc1 Qab7 Nf1 Qba7 h2 Qab7 h1N Qba7 Re3 Rc4 Nh2 Qab7 Rc3 Qba7 Rcc8 Qad7 Rc7 Qe6 Rcc8 Qf7 Rc7
3b2k1/2rq1q1N/qprqnBP1/2Rn2P1/P5p1/R4b2/QKn4b/Q1q2R2 w - - 0 1 illegal: Other
B3rNQR/kN1pq3/n1bn2PP/Q1bP4/3r1r2/2K4b/2rpq2N/1q1r4 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 e5 a4 exf4 d5 c5 Qd4 cxd4 Ra3 h6 Rg3 f3 Bf4 gxf4 g5 Bc5 g6 Bf8 Rg5 hxg5 Kd2 f5 c4 b5 h4 b3 e4 b4 h5 g4 e5 g3 h6 f2 e6 d3 a5 g2 a6 b2 c5 f3 a7 f4 c6 b3 c7 Na6 Rh2 Nf6 Ne2 g1R Bh3 f1Q Kc3 d2 Rh1 f2 Ng3 f3 Kd4 Ne4 Na3 b1Q Nc4 b2 Bg2 Nd6 Kc3 Bb7 c8Q Bc6 Na5 Qe2 Nb7 Rd1 Re1 f1B Bh3 Bg2 Nf1 f2 Nh2 f1R Bf5 Rf2 Bd3 Bh3 Bb5 Rf4 Qc7 Rc8 a8Q Qe7 Qa5 Rg8 Rf1 Rd4 Rf7 Rf1 Rh7 Rff4 Ba4 Qa2 Rh8 b1R Qa7 Rd1 Qb8 Qb1 Bb5 Nc7 Ba6 Ba4 Bb5 Na6+ Bc6 Bb5 Nc5 Ba4 Ba8 Bc6 Nb7 Nf5 Qe5 Nd6 Qg7 Rc7 Nc5 Kd8 Nb7+ Kc8 Qh7 Qf6 e7 Kb8 e8N Ka7 Ng7 Be7 Ne6 Re8 Qg8 Bf8 Ng4 Qe7 Nh2 Qg7 Ned8 Ba4+ Nc5 Nc4 Nce6 Ba3 Nf8 Qge7 Nb7 Nd6+ Nc5 Rb7 Qe6 Bc6 Qf7 Rb2 Nb7 Bc5 Qg8 Rc2#
1rrbr2N/B1p4P/3Q3K/q3r3/1r1npqQ1/2Qnk2P/b1P2R1b/1q1B4 w - - 0 1 illegal: Other
n3rBNB/3rQnPk/1p2nP2/bQ1p4/b3q3/1rbBq3/P7/2q1RK1q w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 c5 Nc3 cxd4 Nce2 h6 Nf4 gxf4 g5 h5 Rb1 Qc7 Rb3 Qa5 Rg3 Qd8 Rg4 hxg4 c4 Kf7 h4 Kg7 c5 e5 f6+ Kh7 h5 d5 h6 f3 c6 d3 c7 d2+ Kf2 e3+ Kg3 e4 Kh2 b3 Bg2 b2 Qc2 b1R Qb2 d1Q Qe2 f2 Ba3 f1Q Bh3 b6 Be7 Qe8 Qb2 e2 Qc1 e1N Qc4 e3 Qb3 e2 Qc2+ Nd3 Bd8 e1B Qa4 Qe4 Qc6 Rb3 Qb5 Na6 Ne2 Ba5 Kg3 Ra7 Nf4 Bd7 c8Q Nc7 Be7 Qc1 Qe8 Na8 Ng6 Nc5+ Kh2 Qff3 Bf1 g3+ Kg1 g2 Bd6 Ne6 Ne7 Qh5 Kf2 Bc6 Bd3 Rd7 Re1 Qh1 Qd8 Qg6 Ke2 g1Q Qc7 Qd4 Qb7 Qdc3 Kf2 Qge4 Bc5 Qh5 Kf1 Qh1+ Bg1 Qd4 Qb4 Rd8 Qd7 Ba4 Qdb5 Rd7 Qa3 Qh5 Bh2 Qde3 Bd6 Qh2 Nc8 Kg6 h7 Nh6 Ne7+ Kh5 g6 Nf7 g7 Kh6 Qab4 Rg8 h8B Kh7 Nf5 Be7 Nh6 Re8 Ng8 Qh4 Bc5 Bd6 Qa3 Be5 Bf8 Bec3 Qe7 Qh1#
bb3Rq1/5bP1/kP2rN2/B1n1p3/r3P3/Q1Qn4/nr2Qb1p/KbNb4 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 gxf6 Bf4 f5 Bc1 f4 g4 h5 b4 Na6 g5 Rh6 Ra3 Rh8 Rg3 Nb8 Rg4 hxg4 h4 Rh5 Bg2 Rh8 Bh3 gxh3 Kd2 d5 c4 Kd7 Kc2 Kc6 Kb2 Kb6 e4 f5 g6 e5 c5+ Ka6 h5 h2 g7 d3 h6 d4 h7 d2 c6 a3+ Ka2 d3 c7 f3 Nc3 f4 Nd5 f2 Qc2 d1B Be3 f1B Qc1 d2 Nf6 f3 Bf4 f2 Ka1 a2 Bg3 Nh6 Nh5 Bd6 Nh3 Bd3 Kb2 f1B Bf2 a1R Bh4 Qg8 N5f4 Nd7 Rg1 Ra2+ Kc3 Nc5 Rg6 Ng4 Qb2 Bb7 c8Q Bb1 Qb3 Nf2 Rf6 Bc4 Nd3 Bf7 Bg3 Rb2 Nc1 Nfd3 Qg4 Re8 Nf2 Re6 Qe2 Ba8 Ng4 Bb8 b5+ Kb6 Qb4 a5 Bh4 a4 Be1 a3 Rf4 a2 Qa3 a1B Nf6 Kc7 b6+ Kb7 Qb4 Ka6 Qd4 Qc8 Rf5 Rhe8 h8Q R8e7 Qde3 Ra7 Qhh3 Qg8 Qd4 Rd7 Qb4 Rd4 Qa3+ Ra4 Ng4 Be8 Rf8 Bf7 Nf6 Bdc2 Qhe3 d1N+ Kd2 Nc3 Qd4 Nd5 Qdc3 Bd1+ Qc2 Rb4 Qcb3 Bd4 Qbb2 Bg1 Qba1 Ne7 Kc3 Nc6 Bd2 Rb5 Be1 Ncb4 Bd2 Nf4 Kb2 Bf2 Bc3 Na2+ Bb4 Bb3 Ba5 Bd1+ Qb3 Nb4 Qaa3 Nfd3+ Ka1 Na2 Qc3 Rb2
2Q5/n1b2Pr1/brN1qP2/8/p1r1N1B1/3nrQ2/KP1Rbrpb/4b1Nk w - - 0 1 illegal: Other
K1q1krQ1/1N2rn2/R1np3N/2q1r1n1/Pr3N1r/3P1p2/4bbrP/2B1Q3 w - - 0 1 legal: proof: c4 g5 f4 e5 b4 exf4 a4 g4 b5 a6 Ba3 axb5 Bc1 bxc4 Ra2 c3 Rb2 Qf6 Rb4 Qg7 Rd4 Qf6 Rd3 Qd8 Rf3 gxf3 g4 h5 g5 Qe7 Bh3 Qd8 Bg4 hxg4 Kf2 c5 e4 b5 e5 f5 d3 c4 e6 b4 e7 b3 g6 b2 g7 c2 Qd2 c3 Ne2 g3+ Kg1 g2 Kf2 g1N Qe3 Nh3+ Ke1 f2+ Kf1 Nh6 Kg2 f1R g8Q f3+ Kg3 f4+ Kh4 f2 Na3 b1R Ng1 Re1 Kh5 f1R Kg6 Rf2 Kf6 Rg2 Ke5 Rb4 Kd6 Ng5 Qf2 Re5 Nh3 Nc6 Qe1 f3 Bf4 c1Q Nc4 c2 Ne3 Qa5 Nf5 Qc5+ Kc7 Nhf7 Bd2 Rh5 Nf4 Rh4 Nh6 d6 Rf1 Bh3 Rf2 Qa3 Bc1 Qac3 Re2 Q3c4 Re4 Qa6 Rc4 Rd8 Ne6 Rdb8 Nd8 Ra8 Nb7 Ra7 Bf4 c1R Rc2 Rcb1 Bc1 Ra8 Rb2 Rbe4 Rb6 Rbb4 Qg6 Qac4 Ra6 Bg7 Qe6 Rf5 Qg6 Bd4 Qh7 Bf2 Qg7 Ra7 Kc8 Na5+ Kb8 Ree5 Qg6 Rg3 Qh7 Bf1 Qg7 Rg2 Qg8+ Kd7 e8N Be2 Nf6+ Ke7 Nh5 Nc6+ Kc8 Qc2 Nf4 Q2c3 Qg6 Ke8 Qh7 Q3c4 Qg7 Rf6 Qg8+ Ke7 Qd2 Qe6+ Kc7 Nfd8 Qd1 Rf8 Qe1 Nd4+ Kb8 Ke8 Qh7 Ndf7 Qg8 Rc4 Nd8 Re7 Nb7 Nc6+ Ka8 Rb4 Rb6 Qh3 Ra6 Qc8#
b1Q5/2bR2pq/P3P2R/2k1nr1K/q1r1BRp1/1Pn4b/1n2Q1b1/Nn4r1 w - - 0 1 legal: proof: f4 a5 g4 e5 d4 exf4 g5 c5 g6 cxd4 Nd2 hxg6 Nb1 g5 Be3 g4 Bd2 Rh6 Bc1 Rh8 b3 a4 Bb2 a3 Bg2 axb2 Bh3 Bd6 Bf1 Bf8 a4 b5 a5 Qe7 Nc3 Qd8 Na4 bxa4 Kf2 Ke7 e4 Kd6 h4 b1N c4 f5 h5 f3 Kg3 f2 a6 f4+ Kg2 d3 h6 d2 h7 a3 e5+ Kc5 e6 d5 Qf3 d1R Be2 f1B+ Kh2 a2 Nh3 d4 Qd3 f3 Kg3 f2 Qf3 d3 Qf6 d2 Kh4 Bg2 Nf4 f1B Nh3 Bcb7 Bd3 Ne7 Qb2 Nd5+ Kh5 Ndc3 Ng1 Bd6 Be4 Qg8 Ne2 Nd7 Nd4 Rf8 Nc2 Ne5 Rh2 Bh3 Rf2 Bc7 Rf3 Bfg2 Rf4 Na3 Rc1 Nab1 Na1 Rg1 Rd1 Ba8 Qc2 Kb4 c5 Rf5+ Kh4 Kb5 c6 Kc5 Qd3 Nf7 Qe2 Ne5 Re1 d1N Ref1 Ba5 c7 Nb2 Rd1 Bb6 c8Q+ Bc7 Nc2 a1Q Rd7 Qa4 Na1 Qf8 Qd1 Rg8 h8R Qd6 Qf3 Qd3 Qe2 Rd8 Rh6 Qc2 Re7 Rd4 Rf7 Rc4 Rd7 Rf8 Kh5 Rf6 Bf3 Qh7 Be4 Rf5+
kr2Bq2/2p1bbnb/PP3P2/1Q1npNr1/2R1q1qQ/1Q1Nb3/3r3q/1K6 w - - 0 1 legal: proof: b4 a5 h4 f5 e4 fxe4 c4 g5 a4 gxh4 Nh3 d5 Ng1 dxc4 Ra2 Qd6 Ba3 Qd8 b5 b6 Bb4 axb4 a5 b3 a6 Bb7 Ra1 Bc8 Ra5 bxa5 g4 Kd7 f4 e5 d4 h5 Kd2 b2 Kc2 c3 f5 h3 b6 e3 f6 h2 d5 a4 g5 e2 g6 e1R d6 h4 g7 h3 Bd3 a3 Bh7 a2 Qe2 a1Q Be4 Rh5 Qc4 Nh6 g8Q Nf5 Qg3 Re2+ Nd2 b1B+ Kc1 c2 Qb4 Qd4 Qh4 Rg5 Bd3 Be7 Bb5+ Nc6 Nb3 Rb8 Qh5 Rd2 Qd1 Ng7 Qa4 Qf8 Qa5 Qg4 Nf3 Kd8 Nc5 Nb4 Bc6 Be6 Nd3 Kc8 Nd4 Bf7 Qb5 Nd5 Re1 h1Q Be8 h2 Re4 Qe1 Nf5 h1Q Rc4 Qee4 Qe1 Qhg2 Qh4 Qh2 Kb2 c1B+ Ka1 Rb7 d7+ Kb8 Qb3 Ka8 d8Q+ Rb8 Qd7 Rd1 Qdb5 Be3 Nf2 Rd2 Nd3 Qef3 Nc5 Be4 Nd3 Qfe2 Kb1 Qeg2 Nh6 Bh7 Nf5 Q2e4
5N2/R2QN1q1/rK3kPP/p4bN1/b4Q1q/bppPB2r/rn6/2nq2n1 w - - 0 1 illegal: No possible last move
N1bQ4/b2P1K2/1Nnr1n2/1NBr3p/ppPn2q1/Q4P2/R1b3kr/1b1b4 w - - 0 1 illegal: No proof kernel
n7/BQnK1bP1/p2Qp2q/n1nnP3/R1p3RP/2b2r1k/RN4q1/3q3r w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 g4 b5 f4 bxa4 Na3 Nc6 Nc2 Nb8 Nd4 gxf4 g5 h5 Nb3 axb3 Bh3 Bf5 Bg4 hxg4 Nh3 Be6 Ng1 Bc8 Kf2 Kd7 e4 Ke6 d4 f5 g6 c5 b5 c3 e5 b2 b6 b1Q h3 g3+ Kf3 a6 b7 c4 g7 g2 Qf1 c2 Qe2 Qbb6 Qf1 Nf6 Ba3 c1N Rb1 Nb3 Qe1 Ne8 Bb2 Na5 Qe2 Nc7 Rd1 Nd7 b8Q Nc5 Kf2 f3 Ke3 f2 Kf4 f1N Qg4 Ne3 Rd2 Ned5+ Kg5 Bd7 Qh5 f4 Qb7 f3 Ne2 f2 Ra1 f1N Nc1 Nfe3 Nd3 Be8 Ra4 Bf7 Qd1 g1Q+ Rg2 Rh7 Rg4 Qg2 Bc1 Rc8 Nb2 Na8 Qd2 Ndc7 d5+ Kd7 d6 Ke6 d7 Ned5 Qd4 Rh6 Bf4 Rf6 Bc1 Rf3 Be3 Rb8 h4 Qd6 Kh6 Kf5+ Kh7 e6 Kh6 Q8e7 d8R Qf6+ Kh7 Qg5 Qd2 Qf4 Qdb4 Be7 Q4b6 Qd7 Qd6 Bg5 Bg1 Qc1 Kh8 Bd2 Rf8 Bc3 Kh7 Nd3 Ba7 Nc5 Kh8 Qd8 Kh7 Qdg5 Rd8 Qd1 Rd7 Be8 Kg8 Qh6 Kf8 Bf7+ Qc8 Ne3 Ke7 Ned5+ Kd8 Rb3 Qb7 Rh3 Rg5+ Kf4 Rg4+ Kf3 Kc8 Rh1 Rd8 Kf2 Rf8 Kg1 Kd8 Kh2 Kc8 Bg6 Rf2 Kh3 Kd8 Ne4 Kd7 Bf7 Nd3 Ra3 Ra2 Rb3 Nb2 Nc5+ Kd8 Bd2 Kc8 Rf3 Kd8 Bc3 Kc8 Ne4 Kd7 Nc5+
n1b1r3/1P1p1K2/3r2bp/B2Qb1P1/1B2pk2/R1N1bq2/1nnP1qb1/BQ6 w - - 0 1 illegal: No proof kernel
5q1R/1p2b3/b1K1b3/p2r1rNb/Bk1pR1RP/1r2Pq1Q/b1Q3P1/n2n4 w - - 0 1 illegal: Other
5bnN/8/RPqQ2q1/1Q1qpn1n/p1Br2bP/5N2/1P1pb3/KN2qr1k w - - 0 1 illegal: Other
1r1Q4/5p2/2rRbbpP/QQ2rqqP/3n4/n2B1pkN/1KP2b1R/5r1n w - - 0 1 illegal: Other
3Nqn1Q/pBqrQ2n/p2qQp1r/n7/2R2P1P/1q1bPbK1/8/5Rbk w - - 0 1 legal: proof: b4 e5 a4 g5 d4 exd4 a5 c5 a6 cxb4 Kd2 bxa6 Ke1 g4 f3 h5 Be3 g3 Bf2 gxf2+ Kd2 Rh6 Na3 Rh7 Nb1 Rh8 g4 Qa5 g5 Rh6 Na3 Rh8 Nc4 Qc7 Ne5 Qd8 Ng4 hxg4 c4 Ke7 h4 Ke6 c5 Kf5 g6 Kf4 g7 Kg3 c6 d5 f4 b3 c7 b2 Ra3+ d3 Ke3 b1N Bh3 f1B Qb3 d4+ Ke4 Nd2+ Ke5 Rh6 Ra4 Nc4+ Ke4 Nd7 Ra2 Qe8+ Kf5 Ngf6 g8Q Bb7 c8Q Bc5 Qb8 Na5 Rh2 Nf8 Ra3 N6h7 Ra1 f6 Qc7 Rd8 Qa4 d2 Qac4 d1Q Qe7 d3 Nf3 d2 Nd4 Qb3 Rc1 d1Q Ne6 Qd6 Rf2 Be3 Bg2 Kh2 Rc2 g3 Kg4 Rd7 Nd8 Bd4 Bd5+ g2 Qh8 Kh1 Be4 Bc5 Qce6 Be3 Kf3 g1Q Bc6 Qg5 Rc4 Qgc5 Bd5 Qcc7 Kg3+ Kg1 Rf3 Kh1 Bc6 Bg1 e3 Bd3 Rf1+ Be4 Bb5 Bbd5 Bc6 Bd3 Bb7 Bf3
r1bQ3R/8/n1r3r1/1NPK1p2/2BpbrQq/2p2bR1/bPPk4/4R1bn w - - 0 1 illegal: Other
7N/1Qp5/2P3P1/b1Nrr3/p1R2q2/2P1rbrp/QnBNbbn1/K3n1k1 w - - 0 1 illegal: Other
1Bn5/q1bP4/Rb3b2/2P1pk2/Pnr1bNnr/pnQ2p2/3Q2Rq/2R1K3 w - - 0 1 illegal: No proof kernel
2rbN1q1/3pbK1P/b2P1Q2/Rnp2rb1/Nq4Q1/QPrr4/p6n/2B1k3 w - - 0 1 legal: proof: g4 g5 f4 h5 c4 gxf4 a4 b5 g5 e5 c5 e4 c6 bxa4 Bh3 Nxc6 Bg4 hxg4 Ra3 Nb4 Rf3 exf3 Kf1 Nc2 Kf2 Ke7 d4 Kd6 e4 a5 h4 f5 e5+ Kd5 b3 Ke4 g6 c5 h5 g3+ Kf1 g2+ Kf2 a3 e6 a4 h6 a2 e7 a1B e8Q+ Be7 d5 a3 g7 a2 d6 Bf6 Qh5 Ba6 Qg4 Nd4 Qe1+ Kd3 Qe5 Rc8 Qe6 Nb5 Nh3 g1B+ Kf1 f2 Kg2 f1R Qh4 f3+ Kg3 f2 Kf4 Rd1 Qe1 f1Q+ Qef2 Qe1 Ng5 Qb4+ Qd4+ Ke2 Ne4 Rd3 Qg4+ Ke1 Rh4 Rh7 Nbc3 Be3+ Kg3 Qf8 Na4 f4+ Kh3 Bg5 Nf6 f3 Ne8 f2 Qf6 f1R Kg3 Rh8 h7 Nh6 g8Q Rf5 Qd5 Rg8 Qg2 Rg6 Qgb2 Qh8 Qa3 Rg8 Kh3 Rf8 Kg3 Rc3 Kh3 Rd5 Kg3 Rdd3 Kf3 Bd4+ Ke4 Bf2+ Ke5 Bfe3 Qh3 Ng4+ Kf5 Bd4 Kg6 Nh2 Qg4 Bde3 Qg7 Rf5 Qf6 Bh6 Kf7 Beg5 Qh3 Bd8 Rc4 Bf8 Qg4 Bfe7 Rf4 Qa5 Rb4 Na7 Rb5 Qb4 Ra5 Nb5 Be3 Rfd5 Bf4 Rf5 Bc1 Qg8+
K1Nn4/5pBq/1r3RB1/Bn1pb1Pr/b2pq2P/2p1P1Q1/qn3Q1b/3k4 w - - 0 1 legal: proof: f4 a5 b4 e5 d4 exd4 g4 g5 c4 b5 a4 bxc4 b5 Bc5 Ra2 Bf8 Rb2 h6 Rb4 axb4 Nd2 gxf4 Ndf3 h5 g5 Bh6 Ne5 Bf8 Ng4 hxg4 Kf2 Ke7 h4 Ke6 a5 Ke5 a6 Ke4 b6 d5 b7 c5 e3 c3 a7 g3+ Kg2 c4 Ne2 c2 Bd2 Kd3 Kf3 c1N Qa4 c3 Qc6 Kc2 Qa6 g2 Qb6 g1B Qg6+ Kd1 Be1 b3 Qf5 b2 Qg4 b1Q Bg3 Nc6 b8B Rh5 Be5 Bh2 Bg7 Rb8 a8Q Qe7 Qa2 Qh7 Rg1 Nd3 Rg2 Qe8 Rf2 Nge7 Qb2 Bg1 Bh2 Nd8 Ng3 Bb7 Nf5 Bc6 Qg3 Rb6 Nd6 Ba4 Nc8 Nf5 Qa2 Nb2 Bd3 Nd6 Bg6 Be7 Kg4 Nb5 Kf5 Bd6 Rf3 Nd3 Qaf2 Qe4+ Kf6 Be5+ Ke7 Nb2 Kd7 Qb1 Na7 Qa2 Kc8 Rd6 Kb8 Re6+ Ka8 Rb6 Bd3 Qe4 Nc8 Qh7 Qfg2 Qe4 Rf2 Qh7 Bg6 f3 Rc2 f2 Re2 f1Q Rf2 Rc6 Rf6 Qf5 Q2f2 Rb6 Qgg2 Bb8 Bc7 Qe4 Qh3 Bh2 Qhg3 Rc6 Bb6 Be5 Ba5 Rb6
q5br/N3PPRq/qK3B1P/2Nkp2Q/N1p1p2r/2r2q2/p4Q2/2bn3n w - - 0 1 illegal: No proof kernel
2BB4/1b2P1rq/2R3bB/rpR4b/5rR1/1n2rrPK/1pPk1N1p/1n6 w - - 0 1 legal: proof: d4 a5 b4 b5 a4 e5 f4 exf4 d5 Bc5 d6 axb4 a5 Bb6 axb6 cxd6 Nf3 d5 Ng1 d4 g3 h5 Qd3 h4 Qf3 h3 Qc6 Nh6 Qg2 Ng8 Nd2 hxg2 h4 g5 h5 Ne7 Ndf3 Ng8 Nh4 gxh4 Kf2 Ke7 e4 Ke6 e5 Kd5 e6 Ke4 e7 d5 h6 f5 h7 f3 b7 h3 Ra7 b3 Ba3 d3 Ra4+ d4 Bb4 f4 Ra5 d2 Ra6 d1B Bd6 d3 Ra5 h2 Ra7 d2 Ne2 g1R Bc5 b2 Be3 Nf6 Ra6 Rg8 h8R Rg7 Bh3 Qg8 Ra1 Re1 Rc1 Nc6 b8B Ra5 Bea7 Bb7 Ra1 Nd5 Rh5 Nc3 Rf1 Nd4 Rh7 Nb1 Rh6 Nb3 Rc6 Qh7 Ng1 Re3 Bc7 Be2 Rc5 d1B Bd8 Bd3 Bc8 Kd4 Ra2 Bg6 Nh3 Be2 Re1 Bd1 Kf1 f2 Ra3 Ke4 Kg2 f1R Re2 Rf3 Nf2+ Kd4 Ra1 Re6 Rd2+ Ke3 Rd6 Re4 Re6 Kd2 Rec6 Rfe3 Ra3 Bdh5 Ra4 f3+ Kh3 Rf4 Re4 Rff7 Rg4 Rf4 Nd1 f2 Bb8 f1R Nf2 Rf6 Bf4 Rf8 Bh6 Rf4 Nd1 R1f3 Nf2 Re6 Rgg5 Re5 Rg4 Ree3
bqr1R3/1P4Nq/bk1Pq2N/3b4/nr2rR1n/3nbP1K/R4QN1/b1r5 w - - 0 1 legal: proof: h4 d5 d4 g5 c4 gxh4 a4 dxc4 e4 e5 d5 b5 Be3 bxa4 Bd4 exd4 e5 f6 Bd3 f5 Be4 fxe4 Kf1 Kd7 b4 h5 g4 a5 Kg2 c5 d6 Kc6 b5+ Kb6 e6 a3 e7 h3+ Kh2 a2 e8R e3 g5 d3 g6 h4 g7 a4 Qb3 c3 Re5 e2 Rd5 e1R Qa3 c2 Nd2 c1R Ndf3 d2 Rh5 d1B Ne2 c4 Nd2 c3 Qb2 a3 Rc5 c2 Nf1 Ne7 g8N Bh6 Qb1 Ba6 Neg3 Re4 Qb4 Ng6 Qa4 Nd7 Nf6 Rc8 Ngh5 Bf3 Nh7 Be3 Rc7 Nc5 Rb1 a1Q Qb4 a2 Qb2 Na4 Re7 Re8 Ng7 Rb4 Re5 Bd5 Nf6 Re6 Rf5 Ree4 Ng4 Qe7 Re5 Qe6 Nh6 Ba8 Rf5 Bd5 Qf6 Qb2 Rf4 a1B Rg1 Qb3 Rb2 Ba8 Ra2 Qb2 Kh1 h2 Kg2 h3+ Kg3 h1B Qh4 Kb7 b6 h2 Rg2 Kc6 b7 Kb6 Qf6 Nh4 Qf5 Qbf6 Kh3 Qf8 Rg6 Qd8 Rf6 Qc7 Rf8 Qb8 Rd8 Bf3 Re8 h1Q+ Nh2 Qd1 N2g4 Qdd5 Qf8 Qdf5 Qf6 Qh7 Qb2 Bfe2 f3 Bec4 Qd4+ Ka5 Qd2 Kb6 Qf2 Bd5 Nhf5 Bed4 Nge3 Bc5 Ng2 Be3 Qf1 Re1 Qf2 c1N Rg4 Nd3 Rf4 Qf6 Nh6 Rec1 Ng8 Qf7 Nh6 Qe6+
N1k4q/P6Q/K7/1RP1Nnr1/R4nbP/rq2b1bq/qb3Rq1/1N3q1r w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 h5 Bh3 c5 Bf4 gxf4 g5 cxd4 Bg4 hxg4 Ke2 e5 h4 d5 c4 Kd7 a4 b5 f6 b3 c5 e3 Kd3 f3 g6 b2 a5 g3 f7 e4+ Kc2 e2 Kb3 e1B a6 f2 g7 f1Q Na3 b1R+ Kc2 g2 Qd2 b4 Qd3 e3 Ra2 e2 Qe3 b3+ Kd3 b2 Qf2 Nc6 Qg3 Nce7 Qg6 Nf6 g8N Nh5 Nb5 Bg7 f8R Bg3 Rf5 e1B+ Ne2 g1Q Qh6 Qh3 Rf3 Qgg2 Qg6 Nf4+ Kc2 d3+ Kb3 d4 Ka4 d2 Nec3 d1Q+ Kb4 d3 Qh5 d2 Nd4 Nf5 Kb5 Bef2 Qh7 Be3 Ne7 Rg8 Ndc6 Qdg1 Ra4 d1Q Rf2 Qg1f1+ Rc4 Qe8 Ned5 Qb3+ Ka5 Re1 Ra4 b1Q Nc7 Q1a2 Ne5+ Kd8 Nb1 Rc1 Nc4 Bb2 Ne5 Rg5 Rg1 Ra7 Na8 Qh8 Rh1 Be6 Rh2 Kc8 Rh1 Rd7 a7 Rd3 Rg1 Qc2 Rh1 Ra3 Kb6 Qcb3+ Ka5 Qfd1 Ka6 Qdf3 Re1 Bd7 Ree2 Rh1 Rd2 Be6 Rd7 Qfd1 Rb7 Qdf1+ Rb5 Bd5 Qg7 Bf3 Qh7 Bg4
1b2BBnr/3rBnr1/2Prr3/2bK4/q2PN2n/2Rb1P1b/4n3/1k1N1Nq1 w - - 0 1 illegal: No possible last move
qBqbr3/2B2RB1/kq2brp1/2Kn2n1/2Nn2Pb/2q4r/q4PP1/4NN2 w - - 0 1 illegal: Other
2bN2b1/B1P1n3/5nkq/3qP2N/5P2/K1N1b1qB/qpr1qB1q/b5Qr w - - 0 1 legal: proof: e4 h5 h4 a5 b4 axb4 g4 hxg4 d4 f5 a4 e5 Qe2 exd4 e5 c6 Qd1 c5 Ra3 c4 Rd3 cxd3 Rh3 Bc5 Re3 Bf8 Re4 fxe4 Kd2 Kf7 f4 b5 c4 g5 c5 d5 h5 g3 a5 g4 a6 b3 c6 g2 h6 g3 a7 b2 h7 e3+ Ke1 b4 c7 e2 Kd2 b3 Qc2 e1B+ Kd1 d2 Bb5 Nc6 Na3 b1Q Qc3 Qh4 Qc4 Qh6 Nc2 Qa2 Nb4 Nf6 Nf3 g1Q Nd3 g2 Ba3 Kg6 Ng5 Qgh2 Ne4 g1Q Qc1 Bc5 Nc3 Qgg3 Nb4 Ne7 Bf1 Bf2 Nc6 Be3 Nd8 Bb4 Ne2 Bc3 Bc5 Ba1 Bh3 b2 Kc2 d3+ Kc3 d1Q Kb4 d4 Nc3 Qde2 Qg1 d2 Bb6 Rg8 h8B d1B Bg7 d3 Bf8 d2 Bc5 Qd5 Ka3 Bb3 Bb6 Rb8 a8N d1Q Ba7 Qb1 Nb6 Rh8 Nd7 Rb4 Na4 Rc4 Nc3 Neg8 Bfc5 Ne7 Nd1 Rc2 Nc3 Nfg8 Nf6 Qa2+ Kb4 Rh7 Nh5 Nf6 Bd4 Qc6 Bdb6 Bg8 Bd4 Qcd5 Bdb6 Bc1 Bf2 Be3 Bg2 Qhg5 Ng7 Qhh3 Bf1 Rh4 Nh5 Qh6 Bg2 Qh1 Bf1 Rh2 Bh3 Qhg2 Be1 Rh1 Bf2 Qb1 Ka4 Q2h2 Ka3 Qba2+
1R5n/4Nn1K/2r1pbp1/1Rrq2N1/1RN3bn/n3bP1P/Qrn4P/3q1k2 w - - 0 1 illegal: Other
qnq2N2/Brb3Pb/b3np2/1N2r2P/1bpRB3/K4P2/1rB5/1bN1kn2 w - - 0 1 legal: proof: e4 a5 b4 axb4 e5 g5 e6 g4 c3 bxc3 f3 g3 Qe2 dxe6 Bb2 e5 Bc1 e4 a3 h5 Kd1 Rh6 Qf2 gxf2 g4 Rh7 g5 Rh8 a4 Bg4 Ra2 Ra5 Rb2 Ra8 Rb5 Bc8 Rf5 Be6 Rf4 Bc8 Rg4 hxg4 Kc2 Kd7 Kb3 Kc6 h4 Kd5 d4 e5 g6 c5 a5 b5 h5 f6 g7 g3 a6 b4 a7 c2 Bd3 f1B Nd2 e3 Bb2 c1Q Ne2 e4 Rh3 g2 Ng3 g1N Rh4 e2 Ka2 e1R Nc4 e3 Rh3 e2 Nf5 b3+ Ka3 Ba6 Ka4 Nh6 Bc2 Ng4 Nh4 Ne3 Bc3 b2 Rg3 b1B Rg6 Bd6 Kb3 Nh3 Na5 Ng5 Bd2 Bc7 Nf5 Ne6 Rg4 c4+ Kb4 Qc8 Nd6 Rf8 Bc3 Rf7 Nb5 Bh3 Rh4 Nf1 Nb3 Bf5 Re4 Qg5 Nc1 Bh7 Ka3 Qe5 Rh4 Qe4 Bd2 Bh2 Ba5 Rb7 Bb6 Bc7 Bc5 Rd1 Bb6 e1B Rg4 Rd2 Bc5 Nc6 Bb6 Rab8 a8B Re2 Ba7 Bea5 Nd6 Rb2 Nb5 Rb7 Rf4 Nb8 Rh4 Qf5 Rf4 Re5 Rg4 Qe4 Rh4 Kc6 d5+ Kd7 d6 Kc6 d7 Kd5 d8N Bb4+ Ka4 Rf5 Rf4 Ke5 Rg4 Qd5 Rd4 Rg5 Be4 Kf4 Bf5+ Kg3 Bc2 Bc3 Ka3 Kf2 Rd2+ Ke1 Rd4 Nc5 Ne6 Re5 Nf8 Ne6 Rg4 Qdd8 Rd4 Bb4+ Ka4 Rb6 Bae4 Qd5 Nc3 Qa8 Nb5 Bd2 Ka3 Rb7 Ka4 Bc3 Ka3 Bb4+
2q3N1/Rn1r4/1n1Npq1q/P1Bq1nn1/2rbR1p1/P2RN3/Kn5P/6kb w - - 0 1 illegal: Other
2n1r2B/1RnPnpb1/b2b1Bk1/5n2/P7/2Kp1q2/bbRP3R/1B2q1rN w - - 0 1 illegal: Other
4r1qK/2Rr2n1/2PPpR2/Qp1bbN1N/1P6/n1p3Nb/2n2qkr/3q3R w - - 0 1 illegal: No possible last move, all moves rejected
b2Rrqrk/Q1pn4/B3p2r/3q1n2/7b/1R5P/rb1P1BPp/1RBnK3 w - - 0 1 illegal: No proof kernel
5K1r/PNPB1n2/4p1RP/1nRp1R1r/N2b3p/1p1k4/2q2bq1/q2bnN2 w - - 0 1 legal: proof: d4 a5 h4 g5 e4 c5 g4 cxd4 b4 axb4 Bf4 f5 Bg3 fxe4 h5 h6 Bh4 Kf7 Qc1 gxh4 g5 Ke8 g6 Ra7 Qf4 Ra8 Qg5 hxg5 Ke2 b5 a4 d5 c4 Kd7 f4 Ke6 g7 Kf5 c5 g4 a5 b3 c6 d3+ Ke3 g3 Kd4 g2 Kc5 d2 c7 d1Q a6 b4 a7 e3 Nf3 Ke4 f5 g1B f6 e2+ Nd4 e1N f7 b2 Ra3 b3 Bb5 Bf2 Bd7 Qc2+ Nc3+ Kd3 Rf1 b1Q Ra5 Nh6 g8R Nc6 Rg6 Bg7 f8N Qa1 Ne6 Qg8 Nd8 Rh7 Nb7 e6 Kd6 Bf6 Nde2 B6d4 Nd8 Ba6 Ng3 Qg7 Nb7 Rah8 Na4 Bc4 Be8 Nf7+ Kd7 Ba6 Rc5 Bb5 Rg1 Bc4 Nf1 Qg8 Rf6 Qg2 Rf5 Bb2 Nd6 Nd4 Ke7 Nb5 Bd7 Bbd4 Nb7 Rg8 h6 Rg5 Ke8 Rh5 Kf8 Ke4 Nh2 Be2 Nf1 Kd3 Ng3 Bd1 Nf1 Qf3 Rg8 Qg2 Rg6 Rh8+
8/2KRN2r/p1n2n2/p2qRb1p/2N2QpN/P3nn1P/kP1b3q/3b2rR w - - 0 1 legal: proof: e4 f5 d4 c5 g4 fxg4 e5 cxd4 Ba6 bxa6 e6 a5 Bh6 Nxh6 Nh3 d3 Ng1 Ng8 Qd2 Qb6 Qd1 Qxe6+ Qe2 Qb6 Qd1 Qd8 Kd2 Kf7 Kc3 Ke6 Kd4 h5 Kc5 g5 c4 d5 f4 d4 h3 a6 a3 g3 Ra2 d2 Qf1 d1B Qd3 g2 Nd2 Rh7 Nf1 Nf6 Qc2 d3 Ra1 d2 Qc3 Bh6 Qb4 Qd5+ Kb6 Nc6 Nf3 g1Q+ c5 Qh2 Nh4 Bd7 Ne3 Rg8 f5+ Ke5 Nc4+ Kd4 Rc1 e5 Rc3 e4 Re3 Be6 Ree1 e3 Qa4 e2 Qb4 Ne4 f6 Bf5 f7 Nf6 f8R Kd3 Ra8 Kc2 Ra7 Kb1 Rd7 Ka2 Kb7 Rg6 Kc8 Rgg7 Qb8 Rg6 Qf4 Rgg7 Kc7 Rg6 Ref1 e1N Rf2 Nf3 Re2 Bdc2 Re5 d1N Qg3 Ne3 Qf4 Nb4 c6 Bd1 Kb6 Rg8 c7 Nc6 c8N g4 Ree7 Re8 Kc7 Bg5 Rf7 Re4 Rfe7 Rd4 Re6 Rd2 Ree7 Rg2 Re5 Rg1 Ne7 Ng2 Qg3 Bd2 Qf4 Ne3
2K3q1/5n1p/B1nQ4/B1NpqP1n/bnq1r3/P2p2p1/1P1b3N/1BNk2r1 w - - 0 1 illegal: No proof kernel
4Nr2/1B3Pr1/1qP1r1P1/1r1pK2p/2b1p1k1/8/n1R1RRqp/B2n1qbB w - - 0 1 legal: proof: h4 f5 b4 g5 e4 gxh4 d4 e5 d5 a5 d6 axb4 Qd4 exd4 e5 d3 Nd2 cxd6 Be2 d5 Ne4 fxe4 Bf1 d4 Kd2 Kf7 f4 Ke6 g4 d5 c4 b5 a4 h5 g5 Kf5 g6 b3 e6 b4 a5 h3 a6 h2 a7 b2 e7 b1R e8R b3 c5 b2 c6 Nf6 Re7 Ng4 Ra6 Ne3 Rf7+ Kg4 f5 Qb6 f6 Bc5 Ra4 Nd1 Rf8 Ba6 Nh3 Bc4 Nf4 Na6 Bg2 Nb4 Ra2 Re8 a8B Re6 Bb7 Rg8 Rf1 Rg7 Re1 Ra1 Bh1 b1R Rb2 Na2 Rc2 Rb5 Bb2 Rb1 Re2 Rc1 Ke1 d2+ Kf1 d3 Kg2 Bg1 Ba1 Nb2 Rf7 d1Q Rf8 d2 Rf7 Kg5 Kg3 Qf1 Rf8 d1Q Rf7 Rd6 Ne6+ Kf5 Rf8 Qd2 Nc7 Nd1 Ne8 Rcb1 Rf7 R1b4 Rd7 Kg5 f7 Re6 Rd6 Re7 Rf6 Re6 Rf4 Ra4 Rff2 Ra8 Nf6 Rf8 Ne8 Kh6 Re3 Qde2 Kf4 Qg2 Kf5 Qef1 Kf4 Rd6 Ke5 Kg5 Re1 Kg4 Ree2 Re6+
qN2Rb2/b2n1PK1/p2n4/5r1q/1p2p2p/B1R3P1/b1nP1k2/2B1bBRr w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 c5 fxe4 c6 dxc6 b5 c5 Qg4 c4 Qf3 Ra7 Qd1 Ra8 a4 Be6 Na3 Nd7 Nc2 Bd5 Nb4 axb4 a5 Nb8 a6 Be6 a7 Bg4 Qa4 Bc8 Qa6 bxa6 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 Kg4 f4 Kg3 f5 h5 b6 c5 f6 c3 b7 c4 Ne2+ Kf2 g3 e3 Nd4 e2 Nf5 e1B Ng7 h3 Ra3 c2 Re3 h2 Bb2 c1N Rd3 c3 Ne8 c2 Rc3 Ne2 Bh3 c1B Ba1 Nd4 Rd3 Be6 Bg4 Nh6 Ra3 Ba2 Be2 Nhf5 Bb2 Nc2 Rc3 Nd6 Ba3 Bb2 Rg1 h1Q Bf1 Ba1 Bc1 e6 Ba3 Be7 f7 Nd7+ Kf4 Rc8 b8B Qd5 a8R Rc5 Nf6 e5+ Kg5 e4+ Kg6 Bb2 Kg7 Rh6 Rd3 Bd4 Rc3 Rb5 Bc7 Ba7 Rc8 Qa8 Bb8 Qa5 Re8 Rf5 Bc7 Nf8 Nd7 Q5d5 Nb8 Nd7 Bh3 h4 Bf1 Rhf6 Re3 Qb5 Bb6 Qe2 Bd4 Qh5 Bc3 Rf3 Bcb2 R6f5 Rc3 Re3 Rc4 Rb3 Bc1 Rb1 Rc7 Nc5 Rh1 Be6 Bh3 Nd7 Bcb2 Ba2 Rc5 Ke2 Rcc8 Bef2 Rc3 Rg1 Bc1 Be1 Bf1+ Kf2 Nc6 Rg2 Nb8 Rh2 Rg1 Rh3 Bb5 Rh1 Bf1 Bf8+
4q2K/pbn4b/NBPr2p1/1Q1NNq2/5p1r/1Qb3Pk/1r3P2/2B3n1 w - - 0 1 legal: proof: e4 b5 b4 h5 a4 c5 axb5 h4 bxc5 h3 g3 Nh6 e5 Ng8 e6 dxe6 c4 Nc6 d4 Bd7 d5 Bc8 d6 Nb4 c6 Rh5 c5 Rh6 Bc4 Na6 Qd5 exd5 Ra3 dxc4 Rb3 cxb3 Ne2 Bb7 Rg1 Bc8 Rg2 hxg2 h4 Rh8 Ng1 Nb8 Ke2 e5 Ke3 f5 b6 Kf7 h5 Ke6 d7 f4+ Ke4 b2 c7 Nf6+ Kd3 Kf5 b7 Kg4 h6 e4+ Kd4 e3 Ke5 e2 c6 e1R+ Ne2 g1Q h7 Ne8 Na3 b1B Nb5 Rd1 Ke6 Rd6+ Kf7 Kh3 Nec3 Qg2 Nd4 Qe4 Nf3 Qg5 d8B Nd7 b8N Bb7 c8Q Nc7 Na6 Rb8 Nd5 Qgf5+ Bf6 Be7 Qg8 Bd8 Ne5 Qe3 Ng4 Ne5+ Kf8 Nf3 Ne5 Ng1 Kf7 g6 Kg7 Ba2 Bg5 Bc8 Qf7 Rb2 Be7 Bb7 Qg8 Re6 Bc5 Rd6 Bb6 Bh4 Nc3 Qee4 Qb3 Bd8 Nd5 Bh4 Nf3 Qe8 Ne5 Bf6+ Kh6 Rf8 h8Q Bg7+ Kh7 Rf7 Nd7 Bc3+ Qg7 Rf8 Ne5 Rg8 Qe7 Rh8+ Kg7 Rh4 Qb5 Rd8 Qeb4 Bc4 Qb3 Rd6 Ne3 Bg8 Nd5 Rg4 Kh8 Bh7+ Kg7 Qe7+ Kh8 Rh4 Q3a4 Qef7 Qab3 Qe8+
b2K3N/2P5/N1Nq4/rn2qP2/3NrrrQ/4r2R/p2rP1kn/B2bb3 w - - 0 1 legal: proof: g4 b5 a4 f5 h4 fxg4 b4 g5 d3 gxh4 Bg2 e6 Bd5 exd5 Ra3 c6 axb5 c5 d4 cxd4 c4 Bg7 Rf3 Bf8 Rc3 dxc3 f4 Kf7 Kf2 Kg6 Ke3 Kf5 Kd4 a5 c5 h5 b6 g3 b5 Kg4 Ke5 g2 b7 Kg3 c6 c2 f5 a4 b6 h3 c7 h2 Qd4 h4 Bb2 c1Q Qd2 d4 Nf3 g1R Ba3 d5 Qd3 h3 Qc4 d3 Qc2 d2 Nd4 d1R Ne6 d4 Nd2 d3 Qc6 Ra5+ Qb5 Bb4 Nc5 Kg2 Qa6 Nc6+ Kf4 Qd6+ Kg5 Nh6 b8N Qa1 b7 Ng4 Bb2 a3 Nb1 d2 Bf6 a2 Kg6 Rh4 Kf7 Na7 Ke8 Nb5 Qa7 Qae5+ Ne6 Rdf1 Nc3 d1B Bg7 Rf4 Nd5 Be1 Nc6 Re4 b8N Bb7 Qb6 Ba8 Na6 Rf1 Nde7 Rff4 Ned4 Re3 Rf1 h1R Rf3 h2 Rh3 Rg1 Qc5 h1R Qc4 Nh2 Qb4 Qde6 Kd8 Rfe4 Ng6 Rhf4 Nh8 Q6d6+ Kc8 Rgf1 Qc4 Rg4 Qa4 Rff4 Qb4 Qde6+ Kd8 Rhf1 Qe7 R1f3 Qf6 Rd3 Qh4 Rfe3 Bf8 Qg6 Bb4 Rd2 Bc3 Qge6 Ba1 Q6d6+
1R1n4/b2K2k1/1P1PbRn1/2b1br2/1Q1Pp1rn/q4nq1/3nQ3/QB2B3 w - - 0 1 legal: proof: b4 a5 e4 b5 h4 f5 a4 fxe4 c4 bxa4 Nf3 d5 cxd5 g5 Na3 gxh4 Nc4 a3 Nd4 a4 Nb3 axb3 Nb2 axb2 Ke2 Kf7 Ke3 b1N Kd4 h5 Kc5 e5+ d6 e3 f4 e2 g4 e1B d3 e4 f5 h3 g5 h2 g6+ Kg7 Qg4 h4 Bb2+ Bc3 Be2 h3 Qg5 Be5 Qg3 Qg5 Qg1 Nc6 Qc1 Rh5 Rg1 h1N Rd1 h2 Rd2 Nd8 Ra4 Ng3 Bg4 h1Q Bd4 b2 Bf2 Be6 Be2 Ne7 Be1 Qh3 Ra6 c6 Kb6 c5 Kc7 c4 Qc2 c3 f6+ Kg8 g7 Ng6 Bf1 Nf5 f7+ Kh7 Rd1 Nfh4 Qe2 Nd2 Rb1 c2 g8Q+ Kh6 Rb6 c1B Rc6 Qgg3 Qh8+ Kg5 Qf6+ Kh6 Rb6 Rf5 Rb8 Bb3 Kd7 Ndf3 Ra1 b1N Ra6 Be3 Rc6 B5f4 Qa1 Nbd2 Qh2 Raa5 Be2 Ng5 Bd1 Qhg4 Qe2 Rae5 Bc2 Ba7 Bb1 Q4f3 Rcb6 Rf6 Rb5 Be7 Rc5 Kg7 b5 Be3 b6 Rf4 Rc3 Bc5 d4 Bf6 Qb5 Bd5 Qb4 Rg4 Rb3 Qc3 Ra3 Qb2 Rf3 Qa3 f8Q+ Kh7 Kc7 Be6 Qe8 Kh6 Qeb5 Kg7 Qe2 Rd5 Rf5 Ngf3 Rf4 Rh5 Rf5 Be5 Rf6 Bd5 Kc8 Rf5 Kd7 Be6+
1N3n2/1P1Q1q1r/1pB3P1/5B1b/1k1N1rPr/n2nQ3/3pK1Q1/bq2bb2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 a5 exf4 c4 Nh6 b4 Ng8 g4 Qf6 Bd2 Qf5 Rh6 Qc2 Ra4 bxa4 b5 Qf5 b6 Qf6 b7 Qd8 Rb6 axb6 Bc3 dxc3 e4 Ke7 a6 d5 a7 Kd6 e5+ Kc5 e6 h5 e7 f5 e8B f3 Nd2 d4 Qc1 f4 Qd1 d3 Qc1 a3 Qb1 a2 Qd1 a1B Qe2 f2+ Kd1 c2+ Kc1 f3 Bg2 f1Q+ Qe1 h4 Nb1 f2 Kd2 c1N Bh5 h3 Nf3 h2 Qe5+ Qd5 Ne1 h1R Qg3 Be6 Nc2 Nd7 Nba3 Ne5 Nb4 Nf6 Bg6 Nh7 Nb5 Bf7 Bf5 Bh5 g6 Qf7 Bc6 Rh4 Qg2 Bd6 Nd4 Nf8 Ke3 Rh7 Kd2 Re8 a8Q Re6 Ke3 Rf6 Qa3 Qd1 Qc3 Qb3 Qe1 Qb1 Kd2 Be7 Qe3 Bd6 Nd5 Be7 Nc7 Kb4 c5 Nc4+ Kd1 Na3 Na6+ Kc3 Nb8 Kb4 Bce4 Bd6 c6 Bf4 c7 Bh6 Qe2 Bd2 c8Q Be1 Qd7 d2 Qe3 Nd3+ Ke2 Rh8 Be6 Rf4 B6f5 Rh7 Bc6 f1B+
5q2/2P1bbpb/1BB1B1q1/1nQ2QPk/n3NKpN/5nb1/qP1r4/7b w - - 0 1 legal: proof: f4 h5 g4 c5 h4 a5 c4 e5 d3 exf4 g5 b5 a4 bxa4 Rh2 Nf6 Rg2 Rg8 Rg4 Ra6 Ra3 hxg4 h5 Rb6 h6 Rd6 d4 cxd4 Rc3 dxc3 h7 Rd5 h8Q Rd3 Qh7 Rh8 Qg8 Nh7 Qxd3 Ke7 Qd1 Ke8 Kf2 f5 e4 d5 e5 d4 c5 f3 Kg3 c2 c6 d3 c7 f4+ Kf2 d2 e6 a3 e7 a2 Bc4 a1Q Ba2 a4 Qe2 d1B Bb3 a3 Qa6 a2 Bd5 Nf6 Bb7 Bf5 Qac4 Nd5 Ba6 Rh2+ Ke1 f2+ Kd2 f1N+ Ke1 f3 Nd2 Nd7 Nb3 N7b6 Bb7 Qb1 Na1 Bh7 Nb3 a1Q Nc5 Na4 Qh8 Kf7 Qb5 Kg6 Ne4 Qaa2 Be3 c1B Nh3 Ndc3 Qd3 Kh5 Ba8 Nb5 Bb6 Bb3 e8B+ Bf7 Ng1 f2+ Ke2 Nd2 Ke3 f1B Nf3 Bg2 Kf4 Be7 Qf8 Bh1 Nh4 Nf3+ Qe3 Qc2 Bd5 Rd2 Be6 Qcb1 Bc6 Qa8 Nf2 Qg6 Qc8 Qb8 Qd7 Qf8 Ne4 Re2 Qc8 Bd2 Qd7 Be1 Qc5 Rd2 Qdd5 Bf2 Qf5 Bg3+
2qnBB1k/KQ1b2R1/Pn6/1r2q1Qp/1n2P2q/n1P1qnb1/R4pQ1/8 w - - 0 1 legal: proof: g4 a5 a4 b5 d4 g5 h4 c5 f4 cxd4 b4 gxf4 g5 axb4 Nf3 e5 Na3 bxa3 Nh2 Ra6 h5 e4 Nf3 Rg6 hxg6 exf3 Kf2 f5 e4 d5 c3 h5 g7 Kf7 a5 d3 a6 b4 Qa4 d2 Rh3 d1Q Rb1 d4 Rb2 d3 Rb3 d2 Bb2 a2 Bg2 a1N Ba3 Ne7 Rh4 Kg8 Qa5 Nd5 Qb6 Nc6 Qc5 Bd6 Rh3 Qc1 Qd4 d1Q Rb2 b3 Bh1 Nb6 Bg2 Nc2 Bf1 N2b4 Rc2 b2 Rg3 b1N Qc4+ Qd5 Bb2 Na3 Rh3 Bd7 Qb5 Qc8 Rg3 Nd8 Qc6 Rh7 Bb5 Qe5 Qb7 Qh1 Bc1 Qh4 Ra2 Bb8 Be3 Rh8 Bc5 Rh6 Kf1 f2 Ke2 f1N Bf8 f3+ Kf2 Nd2 Ke3 f2 Ba4 Qa5 Kd4 f1Q Bb5 Bc7 Kc5 f4 Rg2 f3 Rg1 Kf7 g6+ Kf6 g8Q f2 g7 Qfh3 Qgd5 Nf3 g8Q Rh8 Qg2 Bg3+ Qc7 Kg6 Qg5+ Kh7 Qc6 Rg8 Qc7 Qa8 Qb7 Kh8 Rd1 Qa7 Rd6 Rg7 Rg6 Re7 Rg7 Re5+ Kd6 Qa8 Bc6 Qc5+ Kc7 Qe3 Ba4 Qf5 Bc6 Bc8 Be8 Bd7 Qc8 Qc6+ Kb8 Rb5+ Ka7 Qe5 Qb7 Qc8
k2r1r1K/pp3b2/n1N1b1Q1/Rrq1P3/6b1/b1PP2Q1/1RQq1q2/r6N w - - 0 1 legal: proof: h4 c5 f4 e5 a4 exf4 h5 d5 c3 d4 e3 Qd5 Bd3 Qa2 Bc2 d3 h6 Nc6 a5 Nxa5 b3 dxc2 Ba3 Nc4 Bb4 cxb4 bxc4 gxh6 Qf3 h5 Qd1 h4 Ke2 Kd7 Kd3 Kc7 Ke4 Kb8 Ke5 c1R g4 f5 d3 h5 g5 b3 c5 b2 e4 f3 c6 h3 g6 f4 g7 h4 Nd2 b1R Qc2 f2 Qb2 f1Q Qc2 h2 Nc4 f3 Qd1 f2 Nf3 h3 Nh4 Rb5+ Kd4 Qg1 e5 f1Q+ Ke4 Qd2 Ra4 Ra1 Nf5 Ba3 Ng3 Ne7 g8Q Nd5 Qg6 Nc7 Na5 Rf8 Qc2 Qc5 Rg1 Qff2 Rb1 Na6 Rb2 Bb4 Raa2 Be6 Ra3 Bg8 Ra4 Rf3 Raa2 h1B Ra4 h2 Raa2 Bg2 Nh1 Bh3 Qg3 Rf8 c7+ Kc8 Ra4 Bg4 Ra3 Kd7 Ra4 Rad8 c8Q+ Ke8 Nc6 Ba3 Qb8 Kd7 Qd6+ Kc8 Qg6 Kc7 Ra5 Kc8 Nd4 Kb8 Nc6+ Ka8 Qf7 Bf3+ Kf5 Bg4+ Kg6 Be6 Kg7 Bg4 Kh8 Be6 Qg2 Bg4 Ng3 h1B Qg6 B4e6 Qh2 Bf3 Nh1 Bfg4 Qg3 Bgf7+
b2b2B1/2KQ4/1p1r3b/QP6/1P3b2/nPQB3R/q3pqkp/1R2rrb1 w - - 0 1 illegal: Other
1Qn1rKR1/1q1RRRnq/1nqr2b1/1NP2n1B/P1nb4/3n2P1/7n/r5k1 w - - 0 1 illegal: No possible last move, all moves rejected
K7/n7/n1bb1qr1/1NP3rP/1qn1br1k/QRPN2nr/3Bn3/4N1rN w - - 0 1 illegal: Other
8/qP2R1rn/n6k/K2PbQ1q/1NP3qn/R1Nbr3/1Qbq3r/3r2Nr w - - 0 1 legal: proof: a4 b5 h4 bxa4 b4 g5 f4 gxh4 b5 d5 f5 c5 e3 d4 c3 d3 Ba3 e6 Bb4 exf5 Be2 cxb4 Bg4 f4 Be6 Nd7 Bb3 Nb8 Bc2 dxc2 g4 c1Q d4 h5 g5 f5 g6 a5 e4 b3 e5 f3 d5 h3 e6 a3 g7 f2+ Ke2 f1N Kd3 a4 Kc4 b2 e7 Kf7 Kb4 Kg6 c4 h2 b6 a2 b7 a3 Qd4 f4 Qd1 h4 Qf3 h3 Qf2 f3 Qe1 f2 Nd2 b1B Ne4 Qd2+ Nc3 Qd7 Qe3 Ng3 Ne2 f1R Qg1 Nf6 g8Q+ Bg7 e8N Na6+ Ka5 Bc2 Re1 a1Q Nd6 a2 Qf8 Rf3 Qd4 Nh7 Qe5 Re3 Qf2 Qg4 Rhf1 h1Q Ne8 h2 Nc7 B8f5 Qg2 Kh6 Rc1 Bfd3 Nd4 Nf5 Ne2 Nh4 Ng1 Rag8 Qf5 Be5 Rce1 Rg7 Qgf2 Qhf3 Qe2 Qfh3 Rf3 h1R Qg2 Qh5 Qe2 Q3g4 Rh3 Nb8 Na6 Rh2 Nb4 Na6 Nb5 Qad4 Nc3 Qa7 Rg3 Ba4 Qg2 a1R Qgf2 Rd1 Qe2 Qc1 Qb2 Qd2 Rh3 Bac2 Rg3 Rf3 Re4 Re3 Rh3 Bg3 Re7 Be5 Qa2 Rf8 Qe4 Rh1 Qb1 Be2 Nca2 Rb3 Qb2 Rf2 Qf5 Rfh2 Rf3 Re3 Rh3 Re4 Ra3 Re3 Nc3 Bed3
nnbB4/2QrqP2/n2nKQn1/2P2rN1/n4P2/b1r2r2/5k2/qQrBN3 w - - 0 1 illegal: Other
r2q1nQ1/2n1nb2/2bR3P/2n2bK1/2R1b2r/3QBPbP/2qqb1k1/3BB3 w - - 0 1 illegal: Other
r3r1NR/1PN1bq1p/rnb3k1/q4nr1/N3q2B/1PN1n2K/6bP/2r3Q1 w - - 0 1 illegal: Other
8/1qnP3N/R2b1n2/1N1br1b1/q2rrQqP/K4P1R/1pNb1bk1/1qQ5 w - - 0 1 illegal: No possible last move
3R1bq1/3PBqb1/2K1P1n1/2b3n1/bq2rBk1/N5r1/rpPB1rB1/r6Q w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 e4 h5 g4 hxg4 b5 e5 Nc3 exf4 e5 d5 Ne4 dxe4 Rb1 Qd6 Rb2 Qd8 Rb4 cxb4 Ke2 Kd7 d4 Ke6 h4 Kf5 h5 a5 d5 g5 d6 e3 Kd3 f3 Kc4 f2 Kd5 g3 b6 b3 h6 g2 h7 a3 b7 e2 Nh3 e1Q Be3 g1R Qd3+ Kg4 Qa6 f5 Bb6 f4 Qb5 a2 Bg2 f1Q Ba7 a1B Be3 a4 Qa6 f3 Qb6 f2 Bc1 a3 Qa5 a2 Bf4 Nh6 Qa7 Nf7 Be3 Be6+ Kc5 Nd7+ Kc6 Qb4 Bd5 Rg3 b8B Qfc4+ Qc5 f1R Be4 Rf2 Bc7 Bb2 Nf4 a1R Rf1 R8a2 Bd2 Bd4 Rc1 b2 Ng2 Qf1 Re1 Bb3 e6 Bdg7 Rd1 Rg8 h8B Qdb8 Qc4 Nde5+ Kd5 Ng6 Kc6 Re3 Bd5+ Re4 Ne3+ Kg3 Qe2 g4 Qe1 Ng5 Nc4 Kh3 Na3 g3 Bd8 g2 Be7 g1B Bf4 Kg4 Rd2 Bh6 Bc3 Bhg7 Rd4 Qd8 Bcd2 Qe8+ d7 Qg2 Rc4 Qf7 Qb1 Rf3 Qf1 Bc5 Qh1 Rf2 Rc3 Rh8 Rc4 Rh3 Rc3 Rg3 Rc4 Qc3 Ra4 Qb4 Ra8 Qf3 Rd8 Qg8 Bc7 Qff7 Bcf4 Rd4 Bg2 Rc4 Rc8 Re4 Rd8 Ba4+
5k2/PqQ1b3/1n2B3/1qpR2PR/1q3Br1/Q5Pq/Qb1n3b/1n1bK1rq w - - 0 1 illegal: Other
B2rBb2/rp1n2k1/r2r1b2/1B6/2b1q2Q/P1rq2P1/1Brn1P1b/N2RK3 w - - 0 1 illegal: Other
Bn2B3/3r1Bb1/Nbp4P/1r6/q1P4q/rnk1rP2/K1bq1Q1B/R4qb1 w - - 0 1 illegal: No possible last move
3n1b1r/1b3rPP/qB1nR3/q1b5/2k1B2p/b1p3KP/2B1q3/1QNB2nb w - - 0 1 illegal: Other
3r1r2/R5P1/bb3P2/NR2b3/rq4P1/1R1qpBk1/1n1pnq2/nKQR3r w - - 0 1 illegal: Other
1n5q/1ppb1N2/PbbrRq2/5B2/2k1r1b1/Kb2P3/2n1PbnN/2NQ2N1 w - - 0 1 illegal: Other
bb1K3R/P2B3b/3Q1q2/1nRqp1R1/1nb5/pr1Nb1P1/1R2P2k/2b1q1r1 w - - 0 1 legal: proof: f4 d5 c4 dxc4 g3 g5 Qb3 gxf4 Qe3 h5 Qd4 a5 Qe5 h4 Qd5 h3 Qg2 hxg2 a4 b6 b4 Bg7 Ba3 Bh6 b5 Bg7 Bb4 Bf8 Na3 Nh6 Nc2 Ng8 Nd4 axb4 a5 Rh3 a6 Rh6 Nc6 Rh8 Na5 bxa5 Kf2 Kd7 Kf3 Ke6 Kg4 c5 Kg5 f5 h4 b3 d4 c3 b6 c2 h5 c1B h6 f3+ Kg6 f4 a7 a4 b7 c4 h7 f2 Nf3 g1B Ra2 c3 Rh5 a3 Ra5 c2 Nh2 f3 Rc5 b2 Rc3 b1B Rc7 Qd5 Rd7 Na6 b8Q Nh6 Qf4 Nf5 Ng4 Nb4 Qg5 Ba6 Nh6 Rb8 Bg2 f1B Rd8 f2 Qh5 Nd6 Nf7 Bc4 Rb2 Nb5 Rc8 Rb6 Bf3 Bg2 Ne5 f1Q Qh6 Bge3 Nd3 Bg7 Rc5 Be5 Qf8 Bb8 Qf4 Rf8 h8R Qf2 Qh6 Rf4 Kg7+ Kf5 Kf8 e5 Ke7 Rh4 Qc6 Rh1 Qd6 Rg1 Kd8 Rb7 Be4+ Kg4 Bg6 Qf4 Be8 Qh6 Rg8+ Kh3 Bd7+ Kh2 Rg5 Qf6+ Qe7 Qdf7 d5 Rb6 d6 Ba8 Bf5 Qd5 d7 Bcd2 Bh3 c1Q Bf5 Qe1 Be6 Qg7 Qd6 Bc1 Kc8 Nc7 d8R Na2 Nf2 Qf6 Rh8+ Bh7 Nd3 Rb3 Bf5 Nb5 Bd7 Qg6 Kd8 Nb4 Rc2 Qh6 Rb2 Qf6+
2K1n2r/1n1PpB2/2R1B2N/3n4/p1qB1P2/P1q4B/1nq4n/b1qk1rQb w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 cxb6 Bc4 b5 Bf1 b4 a3 f5 Ba6 b3 Ra2 bxa2 Nc3 e3 Ne4 fxe4 Bd3 Nh6 Bf1 Ng8 Ke2 Kd7 d4 Ke6 g4 Kd5 c3 Kc4 d5 a1Q f3 h5 g5 a5 g6 b5 d6 h3 g7 h4 d7 a4 Qd3+ Kb3 c4+ Qc3 c5 h2 c6 b4 c7 h3 Bd2 Na6 Qd4 Kc2 Qc4 b3 Qc5 b2 Qd5 b1N Qg5 Nc5 Qh6 Bb7 c8B Nf6 g8B Qc7 Bf7 Ne8 Bh5 Bg7 Ke1 e2 Kf2 e1N Bf7 Ned3+ Ke3 Kd1 Qg5 Bd5 Qg6 Nb7 Ne2 Q7c4 Qg1 Nb2+ Kf4 e3+ Nd4 e2 Be3 Be4 Nf5 e1N Nh6 Ra5 Bd4 Rf5+ Kg4 Rf6 Kg5 Qc2 Be6 Nc3 Bg2 Rf5+ Kg6 Bf6 Kf7 Nd5 Qf2 Q2c3 Rf1 h1Q Qg1 h2 Bh3 Qg2 f4 h1Q Rf3 Rh5 Rg3 Qgc2 Rg6 Na5 Ba6 Nb7 Bb5 Rg5 Bc6 Rg3 Bb5 Rf3 Ba6 Rf1 Bb5 Qc6 Bc4 Nf3 Bb3 Nh2 Ba2 Rh7+ Kf8 Qb5 Bf7 Be5 Rc6 Rh8+ Ng8 Qg3 Bf2 Nc3 Re6 Nc4 Bg4+ Kc1 Bf5 Ng7 Bg4 Qhf3 Bb6 Qfd1 Rg6 Bh1 Bh3 Kd2 Bc5 Qdc1 Rc6 Kd1 Bb3 Nd5 Bb6 Ba1 Bd4 Nb2 Ba2 Nc3 Bae6 Nf5 Ke8 Nd5 Rb6 Qgc3 Rc6 Nbd6+ Kd8 Nb7+ Kc8 Ng7 Rc7 Qbe2 Rc6 Ne8 Nh6 Qec4
1NQ1N1b1/p3q3/2n3rr/KnPr3B/br2Pk2/qb6/PN2pB1b/Q1b5 w - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 b5 gxh4 b6 cxb6 Ba3 b5 Bc1 b4 g4 f5 e4 b3 Qe2 b2 Qd1 bxa1B Rh3 f4 Re3 fxe3 f4 Ke7 c4 Kf6 c5 h5 f5 Kg5 f6 b5 f7 d5 Qb3 h3 Qc2 h4 Ne2 h2 Ba3 h1Q Kd1 d3 Qa4 d2 Kc2 d1B+ Kd3 d4 Qb4 h3 Qd2 b4 Kc4 d3 Kb5 b3 Ng3 h2 Qb2 d2 Kb4 e2 Bg2 Bd6 f8Q Nh6 Bh3 Be6 Qf1 Qe7 Nf5 Nc6+ Ka4 Bg8 Nd4 Nf5 Nc3 Rh6 Bb4 Rg6 Ba5 Bc2 Nd1 Qf3 Bb4 Kf4 g5 h1R Bg4 Rf8 Bh5 Rd8 Qh3 Bc7 Qc1 Bb2 Qa1 Bc1 Nb2 d1B Be1 Rd5 Bf2 Nd6 Qe6 Nb5 Qc8 Rh6 g6 Rg1 g7 Rgg6 Qf8+ Kg5 Qa8 Bh2 Qe8 Kf4 Qc8 Be6 g8N Bf7 Nf6 Bg8 Ne8 Qg3 Nc4 b2+ Nb3 b1R Nb2 Nb4 Ka5 Nc6+ Ka6 Qc3 Nd4 Qb4 Qh3 Ba4 Qc8 Na5+ Nc6 Qa3 Be1 Bdb3 Bf2 Nd6 Nb8 Nc6 Nd1 Nb5 Nb2 Bc2 Nd1 Rb4 Nb2 Nd8+ Ka5 Bd1 Qh3 Bdb3 Qc8 Nc6+
2r2Q2/2qPp1R1/b2b3Q/1Bkq3B/P5r1/n1pn2PR/Kn4rp/B2b3q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 h5 fxe4 h6 c5 Qe2 c4 Qd1 gxh6 Bb2 h5 Bc1 h4 Ne2 d6 Nd4 d5 Nb3 Ra5 Na3 cxb3 c4 Ra4 c5 Ra8 Nc4 dxc4 d4 Kd7 Kd2 Kc6 a4 h5 f4 b5 g3 e3+ Ke2 b2 f5 b1R f6 c3 Kd3 b3 f7 b2 Kc2 b4 Kb3 e2 Qe1 h3 Ka2 h4 Rg1 h2 Qf2 e1Q Be2 h1Q Bh6 h3 Bd3 b3+ Ka3 h2 Ba6 Qe6 Qd2 Bg7 f8Q Nf6 Rd1 Ng4 Bf1 Nd7 Qg2+ Qd5 Qh3 Nf2 Bc1 Be5 Qhh6+ Bd6 Ra2 Ne5 Bb5+ Kc7 Re1 Rg8 Re4 Nfd3 Rh4 Ba6 Rh3 Rg4 Ra1 Rc8 Ra2 Nb4 c6 Kb6 c7 Ned3 Ra1 Qh5 d5 Kc5 Bd2 Rf1 Bc1 b1B Bb2 Bc2 Rb1 Rff4 Rf1 Rf2 Ba1 Rg2 Rf7 b2 Rh7 Bd1 Rg7 Nc2+ Ka2 b1N Qd2 Nb2 Qh6 Bf4 d6 Nba3 d7 Ne1 Be2 Bd6 Bb5 Rb8 c8B Qc7 Bb7 Ned3 Bf3 Rc8 Be2 Rc4 Bg4 Qd5 Bh5 Rg4+
2r1q1R1/k5p1/r1pQ1rrP/2P1n2q/1q3p1n/3P1b2/R3Qb1K/rB2B1Q1 w - - 0 1 legal: proof: e4 h5 g4 hxg4 b4 a5 e5 axb4 Be2 d6 Bf1 dxe5 f4 Nh6 f5 Qd3 Nc3 Qd7 Nd5 Qd8 Nf4 Ng8 Nge2 exf4 Nd4 f6 Nc6 Be6 Ne5 fxe5 Kf2 Bd7 Ke1 Bc8 Kf2 Kd7 Kg2 Kc6 h4 Kb6 c4 b3 a4 g3 f6 c6 a5+ Ka7 d3 b5 h5 b2 a6 b1Q h6 e4 f7 e5 Qa4 b4 Qb3 e3 Qa4 e2 Rh4 e1R Kg1 g2 Qa5 b3 Qd5 e4 Rh2 e3 Rh3 e2 Qh5 b2 Qg4 Ne7 Qf3 Nd7 Rg3 Ne5 Ra2 Bg4 Kh2 g1R Bd2 Nf5 Bh3 Bc5 f8Q Qd5 Qd6 Bf2 c5 Nh4 Rg2 Bh5 Be6 Rhc8 Rg5 Rg4 Rf5 Rg6 Rf8 Reg1 Qg3 e1Q Rg8 Bf3 Bf7 Qe3 Be1 Rf6 Qg2 Qe2 Qf1 Rgg6 Qg1 Qde4 Bb3 Qbd1 Bc2 Qb4 Bb1 Nd7 Qd5 Qe8 Qe4 Ne5 Qe2 Bg2 Qe3 Qh5 Qe2 Kb8 a7+ Kb7 Ra6 Bf3 Ra2 Rf8 Bc2 b1R Bc3 Bh1 Be1 Ra1 Bb1 Bf3 Ra6 Rab8 Ra2 Rff6 a8Q+ Kc7 Rd2 Rb6 Ra2 Ra6 Qa7+ Qb7 Qb6+ Kb8 Qc7+ Ka7 Qd6 Qb4
1BNnQ2b/2pP1p1q/k1B4N/p3n1N1/1q2q1q1/1Pr2qrb/rKQP4/8 w - - 0 1 illegal: Other
N1k1n2n/P5Q1/2b1R1Pb/5nq1/r1q1r2b/p1Kb2NR/2P2p1p/2Qb1Q2 w - - 0 1 illegal: No proof kernel
b4bN1/2N5/PnnnqRp1/1P3b2/3r1nQ1/3pN1Qq/2rp2P1/k1rK3R w - - 0 1 illegal: No possible last move, all moves rejected
bb2r2b/2P3p1/1KPQq1k1/Q2pp1q1/3b1n2/1Qn1R3/3P2qN/Nr2rR2 w - - 0 1 illegal: Other
Q7/q1Pp1pQ1/nbnkq3/6Bq/p5r1/1bNP1Pn1/2r2Bn1/1KB1Nb2 w - - 0 1 legal: proof: b4 b5 g4 h5 a4 hxg4 Bg2 c6 Bd5 bxa4 b5 c5 Ra2 Ba6 Rb2 Bc8 Rb4 cxb4 d3 e5 Bb3 axb3 Qd2 e4 Qc3 e3 Kf1 Nh6 h4 Nc6 Qf6 Bc5 Qf3 Be7 Kg2 Ng8 Nh3 Bf8 Rd1 Nb8 Rd2 exd2 Kf1 Ke7 c4 d1N Ke1 g5 Kd2 a5 e4 a4 h5 b2 Kc2 g3 c5 g4 b6 g2 b7 g1Q h6 g3 h7 b3+ Kd2 g2 c6 Ne3 e5 Qb6 e6 Kd6 c7 Na6 b8B Bb7 Nc3 b1Q e7 b2 e8Q Ne7 Qg4 Nc6 Ne2 Rg8 Ba7 Rb8 Qf3 Rg4 h8B Bg7 Nef4 Bd4 Ng5 Qh2 Ng6 g1N Qd1 Ng2 Ne7 Qh5 Nd5 Ne2 Bf6 Ng3 Nc3 Qa2 Kc2 Qe6 Nf3 Qba5 Qd2 Bb6 Bg5 b1B+ Kb2 Qc5 Ne1 Ba2 Qc2 Bc4 Kb1 Bb3 Qh8 Rg8 Qb2 Rg6 Qa8 Rc4 Na2 Rc2 Qg7 Qa5 Bge3 Rg4 Nc3 Ne7 Bh6 Be4 Bhg5 Nc6 Bge3 Bf3 Bg5 Be2 f3 Bf1 Qah8 Bg1 Bf2 Qb6 Qhg8 Qa7 Qa8 Ne4 Bfh4 Bb6 Bf2 Ng3
2N3n1/N7/q2nPP2/NrRPk2r/1R1pb3/n5r1/3qp1np/1rb1QK1Q w - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 axb4 Be3 d5 Bd3 dxc4 d5 e5 Bd4 exd4 e5 Nh6 Bc2 Ng8 Be4 fxe4 g4 Kd7 f4 b5 a4 c5 f5 h5 f6 h3 a5 h4 g5 c3 g6 h2 g7 h3 a6 b3 a7 c4 Qf3 c2 Qd1 c1Q Ra4 c3 Ke2 c2 Ke1 b2 Nd2 b1N Ngf3 e3 Ne4 b4 Nc3 b3 Nb5 b2 Ra2 Nc6 Rg1 h1R Rf1 h2 Nh4 Nce7 Nc7 Rh5 Rg1 Nf5 Ke2 Rb8 a8Q Rb5 Ra7 Na3 Ra4 b1R Qa5 Nd6 Kf1 Qd2 Ng6 c1N Ne7 Nd3 Nc6 Ne1 Rb4 Ng2 Qe1 Be7 Qa7 Ba6 Na5 Qa8 Qc5 Bc8 Qcc1 Qa6 Qcd1 Kd8 Qc1 Bf5 e6 Be4 Qcd1 Nh6 g8N Bf8 Ne7 Ng8 Nc8 Be7 Na8 Bf8 Nab6 Kc7 Qee2 Nb7 Na7 Kd6 Qd3 Ke5 Qe2 Bc5 Qee1 Nd6 Rb3 Bb4 Nbc8 Bc3 Rb4 Bb2 Qf3 Bc1 Nb7 Bb2 Qed1 Ne1 Na5 Qc1 Ke2 Qc3 Rf1 Rg1 Qh1 Rg3 Rf2 Qc1 Kf1 Ng2 Rc2 Qd2 Rc5 Bc1 Qe1 e2+
6Nn/2p2pQ1/3kpP2/QPr2K2/p3Rb2/2P3q1/R1n1bNN1/rq1bnr2 w - - 0 1 illegal: No possible last move
2b1k1nK/PP3R2/1p2p3/Pb3nRq/3R3n/rR3r2/p1r1Nb1p/n3B1Q1 w - - 0 1 illegal: Other
br3n2/3Pk2b/b1q1n2Q/Rpp1NP2/2p3Q1/2R1bR2/1qnP3p/3K1Nr1 w - - 0 1 illegal: Other
1RK5/pB2PnR1/n1p2bP1/1p1n2k1/bq1p1q2/BR1P2b1/2n1Q3/Qr5r w - - 0 1 illegal: No proof kernel
nR1B4/N4n1b/2qB2qk/N1N2Pp1/1rP2Kn1/b1r4P/2qr2qN/4q3 w - - 0 1 legal: proof: b4 b5 f4 c5 e4 d5 g4 dxe4 f5 g5 Qf3 cxb4 a4 Qd7 axb5 Qd8 Qf4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 e5 d4 a5 c4 g3+ Ke2 f3+ Ke3 b3 b6 f2 g6 f1Q d5 f6 h3 a4 b7 a3 d6 b2 g7 Kf7 d7 a2 Nd2 b1R Bb2 g2 Bc1 Ra3+ Nb3 Qc7 d8B Qc6 Bb6 Nd7 b8N Nh6 g8N Kg7 Bd8 Ng4+ Kd2 e3+ Kc2 e4 Ne2 g1Q Rh2 Nb6 Rf2 Qfg2 Na6 Na8 Nb8 Be6 Nd2 Rb4 Nf4 e2 Rb1 a1Q Nf3 e1Q Rd2 e3 Nd3 e2 Ne7 Kh6 Nh2 Bg8 Nc5 Bh7 Nc8 Qa2+ Bb2 Rg8 Na7 Rg7 Rd3 Rd7 Rf3 Rad3 Rg3 Rd2+ Kc3 Re7 Ba3 Re3+ Nd3 Qc2+ Kd4 Ne5 Rg5 Nf7 Nd7 Be7 Nc5 Bf8 Nb7 Be7 Rg7 Qg6 Na5 Q1g2 Rg8 Rg3 Nf3 Bd6 Ke3 Bf8 Kf4 Be7 Nh2 Bd6+ Ne5 Rc3 Rb2 Rb6 Bb4 Qed1 Nf3 e1N Rb1 Qg7 Nd4 Nf3 Ndb3 Nh2 Bc5 Be7 Nf3 Ng4 Nh2 Qe1 Rb2 Qg6 Rb1 Qh5 Rg5 Qg6 Bb4 Bc5 Ba3 Bf2 Bd6 Bc5 Rb2 Ba3 Nc5 Rb8 Rb4 Rb6 Ra4 Rbb3 Rb4 Rb2 Rb5 Rb4 Rb8 fxg5+
k5nR/n2n1n2/1qN3bP/2r2N1R/1bq4b/PBnn3N/1n4PK/q1N2r2 w - - 0 1 illegal: No proof kernel
1q1n2q1/1q1KB1n1/1r2R2n/7q/RrPR4/R3nNbn/bPB1P3/1nk1n3 w - - 0 1 legal: proof: g4 g5 a4 h5 d4 c5 f4 cxd4 a5 gxf4 g5 e5 a6 e4 Nd2 bxa6 Ndf3 exf3 Qd3 a5 Qf5 a4 Qg4 hxg4 Kf2 Ke7 h4 Kd6 c3 Kc5 g6 Kc4 h5 Kb3 h6 Kc2 h7 a5 g7 f5 Rh3 d5 Bd2 a3 Re1 a4 Rh2 a2 Rh4 a1N Bg2 g3+ Kf1 f2 Rh5 d3 Rb1 a3 Rg5 d4 Bf3 a2 Kg2 f1N Kh3 g2 Be3 d2 Rg4 d1Q Bc6 d3 Bf3 d2 Bb6 Bd6 Bd4 Ng3 Bb7 f3 Rg6 f2 Rg5 f1N Bc6 f4+ Rf5 f3 Kg4 f2 Bc5 Ne3+ Kf3 f1N Rf6 Be6 Bd4 Nh5 Ke4 Ra6 Bd5 Nc6 Ba7 Qb8 Rg6 Bg3 Rf6 Nh6 g8R Nd8 Rf7 Rb6 Ba8 Ng7 Nf3 g1N Rd7 Nh3 Rd4 Qe1 Re8 d1Q Ra4 Qd7 Rd1 Qdb7+ Kd4 Rg8 Kc5 Nd2 h8R Nb1 Rdd4 Qh1 Ra3 Bc4 Re6 Kc1 Ra4 Bb3 c4 Nac2 Rh7 a1Q Ra3 Qa6 Be4 Ne1 Bc2 Qab7 Ra4 Rb4 Bb6 Rf8 Ba5 Rb6 Bb4 Ba2 Rh8 Re8 Rf8 Qg2 Rff4 Rf8 Rd3 Rf7 Rda3 Rd7 Rfe4 Rd3 Rd4 Rb3 Ba5 R6b4 Bc7 Rb6 Bd6 R3b4 Be7 Qf1 Nh2 Qf8 Nf3 Qg8 Ng5 Nf4 Rb3 N1g2 Bg6 Nc3 Rd3 Kc2 Rba3 Qh1 Rd4+ Kc1 Nf3 Ne1 Bc2 Nb1 Rc6 Q8a8 Kd6 Qbb8+ Kd7 Qh5 Rf6 Nh3 Re6 Qab7#
1N5n/3n1rbP/r2P2rN/q1N1b3/r4pr1/B1QB4/K2P1kN1/n1r3rb w - - 0 1 illegal: Other
2R1rR1r/bK1bbR1n/P2n4/7b/1n1q1N2/3bBprR/2P2P1q/3rk1N1 w - - 0 1 legal: proof: e4 g5 h4 a5 b4 axb4 d4 c6 d5 cxd5 Qd2 dxe4 Qd1 e3 g4 Nh6 h5 Nc6 Bd3 Qc7 Bg6 Qa5 Qd4 Nb8 Qf4 Qc7 Qh2 Qd8 Qh4 gxh4 g5 Ng8 Bf5 Ra6 g6 Ra3 g7 Ra8 Bg6 hxg6 Ke2 e5 Kf3 Ke7 Ke4 Ke6 a4 f5+ Kd3 Kd5 h6 b5 a5 h3 a6 e4+ Ke2 Kc4 h7 d5 Ba3 f4 Nd2+ Kc3 Rd1 b3 Bd6 d4 Be5 b4 Ndf3 b2 Ra1 b1Q Bc7 b3 Nh2 g5 Ng4 b2 Nh2 g4 Ra2 g3 Ra1 g2 Nf1 h2 Ra5 Be7 Ra4 Nc6 Rb4 Nf6 g8R Bd7 Ra4 Nb4 Nf3 g1R Rg6 Rg3 N1d2 Qg1 Ra1 b1N Ba5 Na3 Ne5 Nb5 Nf1 d3+ Ke1 e2 Rd1 Nd6 Rg4 Qb6 Rg5 Qd4 Nf3 Rae8 Rf5 Qg2 Ne3 Qh3 Rf1 h1B Bb6 Qh2 Ng1 Bf3 Bc5 Bh5 Ng2 f3 Rd2 Bd8 Rd1 Bb6 Nf4 Ba7 Bb6 Kb2 Kd2 e1R Ra1 Rb1 Rd1 Rc1 Raa5 Kb1 Rac5 e3+ Ke1 e2 Kd2 Kb2 Rc8 Ra1 Ngh3 Rb1 Rh1 Rc1 Bc5 Rf1 Ng1 e1B+ Kd1 Kc3 Kc1 Rhf8 h8R Nh7 Rf7 d2+ Kb1 d1B Ka1 Nd5 Ka2 Kd2 Ka3 Be2 Rg8 Bd3 Kb3 Qg2 Rh3 Nb4 Bb6 Qh2 Ka3 Be6 Ka4 Bd7+ Ka5 Kd1 Rh8 Bc3 Rg8 Kd2 Bc5 Rd1 Bb6 Ke1 Bc5 Qg7 Be3 Bf6 Rh8 Be7 Rg8 Bb8 Kb6 Ba7+ Kc7 Nf5 Kb7 Qd4 Rg5 Rh8 Rg8 Bb6 Rgf8 Nd6+ Kb8 Ba7+ Kc7 Nf5 Kb7 Nd6+
N2n1n1R/1P2Pn2/3b3B/1kr1Nbqn/n2r4/1b5b/2P1qN1p/K1N2Br1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 c5 h5 cxd4 Rh2 e5 Rh1 exf4 b4 h6 g4 Qc7 Rh4 Qa5 Qd3 Qb6 Qg3 Qa5 Rh1 Qc7 Qh4 Qd8 Ra3 Bd6 Rg3 gxh4 g5 Be7 g6 Bf8 Rg5 hxg5 Kd1 a5 e4 f5 b5 d5 g7 Kd7 h6 g4 e5 h3 b6 Kc6 h7 d3 b7 f3 e6 d4 Na3 g3 Be3 h2 Kc1 d2+ Kb2 d1N+ Ka1 f4 Ba6 f2 Kb1 f1B Ne2 d3 Bd2 g2 Bc4 g1N Nc3 f3 Ba2 f2 Bc1 d2 Nc4 a3 Ka1 a4 Bb1 a2 Bb2 Ne2 Ne4 Ng3 Ne3 Bd6 Ng4 Nd7 Ba3 Bc4 Bb4 f1B Rg1 Bb3 Ne5+ Kb5 Ba3 Nb2 Nc5 d1Q Rh1 Bh3 Rf1 Nf8 Ncd7 Nh5 Nd3 Nh6 g8N Qe2 Nc1 Qg5 e7 Nf7 Ngf6 Ra5 Nb6 Bcf5 Ng4 Rg8 h8N Rg6 Ne5 Re6 Ned3 Re4 Rg1 Rd4 Rd1 Nc4 Rf1 Nce5 Nf2 Nc6 Na8 Ncd8 Rg1 Ka6 Rg3 Rc5 Ng6 Ka5 Ne5 Kb5 Kb2 a1N Ba2 Ka5 Bb4+ Kb5 Bd2 a3+ Kb1 Bd5 Bb3 a2+ Kb2 Bde6 Rg4 Bd5 Rh4 Bde6 Bd5 Nb3 Bg2 a1R Bf1 Bc4 Ncd3 Rd1 Nc1 Bce6 Bg2 Rg1 Bf1 Rcc4 Ka2 Nc5 Ka1 Na4 Bf4 Rc5 Be3 Nf4 Rh8 Bb3 Bd2 Nh5 Be3 Qg7 Bh6 Qg5
3nR1K1/PPq1Bq2/1B1B2b1/n4p2/b1k2rR1/b3qr2/r4P2/1Qrr1b1B w - - 0 1 legal: proof: e4 a5 c4 d5 g4 dxe4 g5 b5 g6 bxc4 Na3 hxg6 Nb1 g5 Be2 g4 Bd3 Rh3 Bf1 Rh8 b4 Qd4 b5 Kd7 Ne2 Qe5 Nd4 Qd6 Na3 Ke8 Nac2 Qd8 Nb4 axb4 Nb3 cxb3 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 c5 a4 b2 h4 b1B d4 g3 b6 b3 h5 g2 a5 g1R+ Qg4 e3 b7 e2 a6 e1Q h6 e5+ Kh5 g5 h7 e4 Ba3 b2 Bh3 c4 Bb4 e3 Rh2 c3 Ba5 e2 Bc7 c2 Ra3 c1Q Bb6 Bc2 Rb3 b1B Rh1 Ne7 Rh2 Rg3 Rg2 Nbc6 Qh4 g4 Ba5 Rf3 Rc3 g3 Rh2 g2 Rc4 g1R Bg2 Bh3 Bb6 Qed2 Qf4 e1R Bh1 f6 Qg3 Qe3 Qg6 Qb2 Rb4 Rc1 Qd3 Rhg8 h8B R8g4 Rg2 Rgf4 Rg4 Rgd1 a7 Ba4 Rc4 Na5 Rc8 Nec6 Kg6 Ba3 Kg7 Bf1 Qh7 Qd6 Re8 Rd8 Kg8 Kc4 d5 Qc7 d6 Bbc2 d7 Qbe5 Qh5 Bg6 Qf5 Qe7 Qb1 f5 Bhd4 Qf6 Bdc5 Rd2 Bf8 Ra2 Bfc5 Ra8 d8B Rc8 Bde7 Rd8 Rg2 Rdd1 Bcd6 Nd8 Rg4 Qf7+
4q2r/K3N1b1/PN3P2/1Nr2nP1/3BRq2/p3Rpr1/b1n2kn1/2r1q1Nr w - - 0 1 illegal: No proof kernel
2n1bN1R/BPKrP3/1r1N4/1q1qp2b/5n1b/2N1b1Pk/N3rp1q/3b1R2 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 e5 h6 gxh6 Rh2 h5 Rh1 h4 e4 Qa5+ Qd2 Bb4 f5 Qa6 Bc4 Qf6 Be6 Bf8 Qf4 exf4 e5 Ke7 Ba2 Qb6 e6 Qd8 Bc4 Kf6 e7 Kg7 Be6 fxe6 Be3 Kf6 Bc1 Kf7 Kd2 Kf6 Kd3 Kg5 Kc4 Kg4 Kc5 a5 Kd6 h5 c4 d3 b4 h3 g3 h4 b5 a3 f6 d2 b6 d1B c5 f3 b7 a2 f7 f2 c6 a4 c7 h2 Nh3 a3 Rf1 h1Q Bd2 Bh6 f8N Qh2 Nf4 h3 Ng2 Be3 Be1 Qe8 Rg1 Rh6 Rf1 Nf6 Nf4 Nh5 Bd2 Nc6 Bc1 Na7 Nd5 Nf4 Nd2 Ba4 Rb1 a1R Nc4 Ra2 Nc3 Re2 Ra1 a2 Rb1 a1B Na2 Bf6 Rh1 e5 Ne6 Bh4 Bb2 Rb8 Bd4 Rg6 Kc5 d5 Kd6 Qb5 Bb2 d4 Rbe1 d3 Reg1 d2 Bc3 d1B Rf1 Bd7 c8N Be8 N8b6 Rd8+ Kc7 Nc8 Nd6 Rh6 Nf8 Bh5 Nf5 Rf6 Nd5 Rb6 Rhg1 Qb2 Nd6 Bae8 Bd4 Qb5 Kb8 Qg2 Rh1 h2 Kc7 Kh3 Ndc3 Qgd5 Rhg1 h1Q Bc5 Qh2 Rh1 Ra6 Ba7 Bb3 Rb1 Rb6 Rhf1 Bd1 Rb4 Ng2 Rg4 Nf4 Rg8 Rc2 Rh8 Rb2 Nc1 Re2 N1a2 Rd7+
1q1b1k1n/Q2bpr2/5r2/np2q3/1PP1RNP1/2RRq3/2nbNKb1/2rR4 w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 a5 b4 c5 h5 cxd4 c3 d3 h6 a4 Rh5 a3 Bb2 axb2 Rh1 gxh6 Be2 h5 Bg4 h4 Be6 Na6 Bb3 Nb8 Bc2 dxc2 f4 c1R a4 b5 g4 h5 f5 d5 a5 e3 a6 d4 a7 d3 c4 d2+ Kf1 e2+ Kf2 e1B+ Ke3 h3 f6 h4 Ne2 h2 Nbc3 b1Q Ra4 h3 Ra5 Bf2+ Kf3 Nc6 Ra3 Bb6 Ng1 Rh6 Qc2 d1N Ra6 Na5 Ne4 Qb2 Nc5 Bd7 Nd3 Ne3 Ne5 Qb8 Qe4 Bd8 Qd4 Nc2 Qc5 Bg7 f7+ Kf8 Ne2 Rf6+ Kg3 Bh6 Rd1 h1B Rad6 h2 Nd3 Bd2 Ndf4 Qe5 Kf2 Bg2 Rd3 h1Q Qb6 Qh3 Qa6 Kg7 f8R Nh6 Qb6 Nf7 Rc3 Qbc7 Qd4 Rb8 a8R Nh8 Qa7 Rbb6 Rc8 Qb8 Rc6 Rf5 Rd6 Rf7 Rd4 Rbf6 Re4 Bc7 Rc8 Bd8 Rc5 Kg8 Rd5 Kf8 Rdd3 Qe3+
8/BNNP1b2/1b6/1Pp1NbrR/1n1rn1bN/2P2b1r/b1kp3R/3q2qK w - - 0 1 illegal: No possible last move
2nRr1bB/NbbR1n1p/3b1P1r/3nR1q1/p4bP1/KP2nR2/2q1B1k1/8 w - - 0 1 legal: proof: e4 e5 a4 c5 h4 g5 d4 exd4 a5 gxh4 a6 f5 e5 c4 Qd3 cxd3 Nd2 bxa6 Ngf3 a5 Ne4 fxe4 Ng1 a4 Kd1 Kf7 g4 Ke6 c4 a5 f4 d5 b3 h3 c5 d2 Kc2 d1Q+ Kb2 h2 c6 d3 c7 e3 Be2 a3+ Ka2 d4 f5+ Kd5 e6 Ke4 e7 d2 e8R+ Ne7 Nh3 a4 Bd3+ Kf3 Bb2 e2 Ng5+ Kg2 Nf7 e1B Be2 d3 Be5 Ra6 Nh6 Nd7 Bf4 Ne5 Bg5 Bb7 c8R Bg3 Bf6 Nf7 Ng8 Bf4 Rc5 Qc2+ Bb2 d1N Rc3 d2 Rf1 h1B Re3 Rh6 Bb5 Nc8 Rff3 B8d6 Bd3 Qg5 R3e4 Ne3 Bc4 d1N Ne7 Nd5 Re5 N1e3 Rd8 Re8 Be2 Bc7 Rd1 Nb4+ Ka1 a2 Nc6 Bd6 Na7 Bc7 Red5 Ne5 Bc3 Kh2 Rf2+ Kg3 Rc5 Bhd5 Rf3+ Kg2 Rd4 Bf7 R4d7 Bg8 Rcd5 Nf7 Bh8 Qc5 Kb2 a1B+ Ka3 Qc2 f6 Bae5 Rc5 Bed6 Re5 Nbd5+
q2n3N/6P1/qrb5/2bbb3/P2Np3/Nr2k1pQ/R1rr3P/KNbR1n2 w - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 axb4 g4 d5 Bh3 dxc4 Bb2 g6 Be5 fxe4 f5 g5 Bf4 gxf4 g5 Be6 Bg4 hxg4 Qc1 Bd7 Qd1 Bc8 d4 Kf7 Kd2 e5 Kc2 b5 Kb2 c5 a4 b3 d5 g3 d6 c3+ Kc1 f3 g6+ Kf6 g7 Kg5 f6 Kf4 f7 b2+ Kc2 b4 d7 e3 Qd3 c4 Qg6 b3+ Kd1 e4 Qe6 f2 Qc6 c2+ Ke2 c1R Qb6 c3 Nf3 c2 Qg6 Bc5 f8N Ra6 Qe6 Bb7 Qb6 Ne7 Nfd2 Nf5 Qa7 Bc6 Rd1 Rb6 Nc3 b1B Rf1 b2 Nb3 Ba2 Qa8 b1R Nd2 Bad5 Rg1 R1b3 Ndb1 Rd1 Rf1 c1B Ra2 Rd4 Rd1 Rd2+ Kf1 Qe8 d8N Rc2 Na3 e2+ Kg2 e1B Kf1 Kf3 Nfe6 Ke3 Ncb1 Bc3 Nf7 Be5 Nd4 Rh6 Qb7 Rd6 Nh8 Qc8 Qf7 Qb7 Qe6 Qa8 Nab5 Bd7 N5a3 Nc6 Qe8 Nd8 Qh5 B7c6 Qh3 Kf4 Rd2 Ne3+ Ke2 Nf1 Kd1 Rc4 Nc3 Ke3 Kc2 Bb2 Kb1 Bc1+ Ka1 Rd7 Ncb5 Rc2 Rd1 Nd2 Nc7 f1Q Nb1 Qfa6 Nb5 Nf1 N5a3 Rf7 Rb2 Rff2 Ra2 Rfd2
2K2nr1/8/1P1bNQB1/1rqp3b/1n1bbnN1/1nN1Pk2/1P1p1B1q/1N1r4 w - - 0 1 illegal: Other
1bq3Q1/3nb1R1/NPk3Pq/pn2P2b/2Nr3q/n1r2Rp1/2q1K3/N1n2N2 w - - 0 1 illegal: No possible last move, all moves rejected
3qb1n1/R6P/2k1n2b/1nN3N1/BP2prB1/4Pn1K/p1Nq1rr1/2N2bb1 w - - 0 1 legal: proof: d4 f5 a4 b5 d5 bxa4 d6 f4 Nd2 cxd6 Nb1 d5 Ra2 d4 Ra3 Na6 Ra1 Nb8 b4 g5 e3 f3 Ra3 Bg7 Kd2 Bf6 Qe2 fxe2 f4 Bg7 f5 Bf8 Rc3 Ba6 Rc5 Bc4 Re5 Ba6 Re4 Bc8 g4 h6 Rf4 gxf4 g5 Rh7 g6 Qb6 Bb2 Kd8 Bc3 Ke8 Kc1 Qc7 Be1 Qa5 Bh4 Qd8 Bg5 hxg5 Kd2 Rh8 Ke1 d5 Kf2 Kd7 Kg2 e1N+ Kf2 e5 c4 a5 h4 g4 g7 a3 h5 d3 h6 d2 c5 d1Q h7 a4 f6 e4 f7 d4 Ba6 f3 Kg3 f2 Nf3 f1B Rh2 a2 Rh3 a1R Bc4 d3 Rh6 a3 Ng5 d2 Nh3 a2 Ng1 Nf3 Na3 Nc6 Bb3 Ncd4 Ne2 Ne6 Nc2 Kc6 Nc1 Bd7 Rf6 Be8 Ba4+ Bb5 Kg2 g3 Kh3 g2 Rg6 g1B Rg3 Ne7 g8N Bh6 Nf6 Rf8 Rg7 Ng8 Nd7 Qe2 Ne1 d1N Nc2 Kd5 c6 Nc3 c7 Qd2 c8B Kc6 Nc5 Ra5 N1b3 Rf1 Nc1 Ra6 Rg5 Rf2 Rg7 Nc7 Bg4 Ne6 Bb3 Bd3 Ba4+ Nb5 N5b3 Nf6 Nc5 Rg8 f8N Bf1+ Kg3 Ra5 Ra7 Rg5 Na6 Rf5 Nc5 Rg2+ Kh3 Ng8 Rf7 Rf4 Ra7 Nc7 Nfe6 Ra6 Ng5 Ne6 Ra8 Ra7 N1d3 Raf7 Nc1 Nfd4 Ra5 Rff2 Ra8 Nf3 Ra7 Rf4
1Nr1N1b1/q4PB1/2R2R1R/3RbrP1/1q4P1/rq4pq/2pb3n/n2Kbk2 w - - 0 1 illegal: Other
br1R4/p1pb1PnP/4P3/N1Q2N1R/8/2R1bkqp/1r2b1nq/KRn1r3 w - - 0 1 illegal: No proof kernel
NKRQ3b/P3p1p1/N1b1P1bq/7n/2r4b/1N1Rn1Pp/b4r1r/N2rk3 w - - 0 1 illegal: Other
1KnNb2R/N4rnP/1PN2q2/2b2B1n/b5rR/4pppP/1p2b3/k2r2N1 w - - 0 1 illegal: Other
b1Nqb1R1/K4pNP/1pRP4/1PQ1n2r/6Nb/1Nn5/2pq3p/r2rb2k w - - 0 1 legal: proof: f4 a5 h4 g5 b4 e5 c4 exf4 b5 d5 Qa4 dxc4 Qb4 axb4 g4 Qd4 h5 Qe3 Bb2 Qe7 Bd4 Qd6 Bf2 Qd8 Bh4 gxh4 g5 Qd6 g6 Qa6 g7 Qg6 Bh3 Qg5 Bf5 Qd8 Bg6 hxg6 Kf2 Kd7 d4 Kd6 e4 c5 a4 b6 d5 Ke5 a5 f3 Ke3 b3 a6 c3 d6 f2 h6 f1R a7 h3 Ra5 g5 Ra2 h2 Na3 c4 Re2 g4 Rb2 c2 Ne2 c1Q+ Rd2 g3 Nd4 g2 Rg1 b2 Nac2 b1B Nb3 c3 Kd3 Kf4 Kd4 Kf3 e5 Nf6 g8N Ne4 e6 Be7 Ne3 Rd1 Kd5 Nd7 Kc6 Bh4 Rc2 Qd2 e7 Rh7 e8N Kf2 Re1 g1B Ng4+ Kg2 Ng7 Kh1 Ne7 Rh8 Re3 Bgf2 Rg3 Be1 Rc1 Bd3 Rg2 Be2 Rg3 Bf3 Rg2 Rb8 a8Q Rh7 Qb7 Ra8 Qc7 Ra1 Rc2 Ndf6 Rc1 Bd7+ Kb7 Be8 Qc5 Nd7 Nc8 Ne5 Rc2 Rab1 Ka7 Ra1+ Ra2 Rh8 Ra3 c2 h7 Nc3 Ra4 Ba8 Ra3 Rg8 Ra4 Rac1 Rc4 Rb1 Qd4 Rbc1 Rc6 Rb1 Qc5 Rbc1 Nh5 Rg5 Ng7 Rh5 Nf6 Nf3 Ne6 Bb7 Rg8 Ba8 Ng7 Ne5 Ng4 Ra1+
1b1nb3/3pPP2/2qN3p/3r4/4N1pK/rnP1RRpb/Bkb4R/3R2qq w - - 0 1 illegal: No proof kernel
RN1r4/N1p3p1/Knp2np1/5PqP/pnb1kq1r/R2R3P/B5R1/2b4b w - - 0 1 illegal: Other
r2N1Qb1/2b1r1Q1/2K1r1bq/2N2bp1/2PR1Q2/1P6/rPb5/N1nr2nk w - - 0 1 legal: proof: f4 c5 d4 cxd4 f5 b5 f6 a5 Bf4 a4 Bg3 b4 Bf4 b3 axb3 a3 Bc1 a2 Nd2 exf6 Rb1 f5 Nc4 f4 Nd2 Ra7 Ra1 Ra4 Rb1 Ra8 Ngf3 axb1R Ng1 g5 Ndf3 g4 Be3 g3 Bf2 gxf2+ Kd2 Qb6 Nh4 Qf6 Nhf3 Qd8 g4 Qf6 g5 Qd6 g6 Ra2 g7 Qb6 Bh3 Qd8 Bf5 Ra8 Bg6 hxg6 Kd3 Ke7 Ke4 Kf6 Kd5 Kf5 h4 Kg4 e4 Kg3 h5 Kg2 c3 f1R h6 f5 e5 d3 h7 g5 e6 d2 e7 Na6 e8N Nf6+ Ke5 d5 g8Q d4 Rh5 d3 Qc1 d1B Qc4 d2 Rh1 Nc5 Nh2 f3 Qd4 f2 Nd6 f4 Qe3 f3 Qe4 Nfd7+ Kd5 Qf6 Nf5 Qh6 Qec2 Re1 Nf1 Nd3 Nh3 Re6 Nh2 f1B Ng7 f2 Ng4 Bd6 Kc6 Rba1 Q2b1 Rhe8 h8Q R1a2 Qf8 Bc2 c4 d1R Qe3 Nc1 Qef4 Bfd3 Rf1 R6e7 Ne6 Bh7 Nd8 Bg8 Re1 f1B Re4 Re6 Ne3+ Kh1 Rd4 R8e7 Qa1 Bg6 Nc2 Bfd3 Qb1 Bdf5 Na1 Bc2 Qg7 Re5 Qff8 Bc7 Nf4 Ree1 Nd3 Ne5+ Kc5 Nf3 Kc6 Ng1 Nc5 R2a4 Qf4 B8f5 Qa2 R1e2 Qa3 R2e3 Qb4 Ra2 Qb8 Bb6 Qbd6 Bc7 Qdf6 R3e5 Qff8 R5e6+
2K2Q2/2Nn3B/ppb4b/k1prBq2/P1p5/P2r2nQ/B2r1Pnq/Q3b3 w - - 0 1 illegal: Other
4b1b1/Q3np2/3p1Q2/1q3r2/n1q3pn/rkbPrP1B/RP2Bp2/3KB1Q1 w - - 0 2 legal: proof: f3 c5 Kf2 b5 a4 bxa4 g4 h5 d3 hxg4 Bf4 e5 Nd2 e4 Qb1 a3 Qa2 e3+ Kg2 c4 Be5 c3 Qb3 cxd2 Nh3 a2 Nf2 exf2 Rd1 a1Q Bd4 Qa2 Rb1 Qxb1 c4 Ke7 e4 Kd6 h4 d1B h5 a5 h6 g5 h7 g3 Bb6 a4 Qa2 a3 Rh2 g4 Ba5 Kc5 e5 d6 e6 Ba4 e7 Nd7 e8B Qb6 Qb3 a2 Qc3 a1N Qc1 Nb3 Qc3 Qc1 Rh5+ Ne5 Rg5 Ne7 Qc2 Qb5 Qd1 Bg7 Be1 Bf5 Bd7 Rhb8 h8Q N5g6 Be6 Be5 Qf6 Bc3 Bd5 Kb4 c5 Ra7 c6 Nc5 c7 Rc8 Bb3 Nh4+ Kh1 Re8 c8Q Bh7 Qb7 Bg8 Bh3 Ra5 Qa7 g2+ Kh2 Ra8 Kg3 Qc2 Kf4 g1R Ke3 Qc1+ Ke2 Qf4 Qb1 Qfc4 Bd1 Re8 Ke3 Ra8 Be2 Kb3 Bd2 Rc1 Rh5 Rc2 Qg1 Re8 Rd5 Rc1 Rf5 Ra1 Be1 Ra3 Re5 Qbb4 Rd5 Bb5 Rg5 Na4 Rc5 Bd7 Rc6 Rh5 Ra6 Rf5 Ra5 Qbb5 Ra6 Be5 Kd2 Bc3+ Kd1 Rb8 Qb6 Be8 Qa7 Rc8 Ra5 Rcc5 Ra6 Rce5 Qf1 Nc5 Rc6 Re3 Qg1 Ra4 Ra6 Rb4 Ra1 Ra4 Ra2 Ra3 Qh6 Na4 Qe6 Rg5 Qf6 Rf5
q1n2Q2/2Bq2nK/1p1P4/5b1B/4P1nb/1b1P1qrN/5B1q/kn1Br1B1 w - - 0 1 legal: proof: g4 d5 a4 h5 b4 hxg4 h3 a5 d3 axb4 Ra3 bxa3 c4 e5 cxd5 e4 Qc2 e3 Qb3 Qd6 Qd1 Qd8 h4 f5 Nd2 f4 Bg2 exd2+ Kf1 Bd7 e4 Ne7 Ke2 Bf5 Bf1 Ng8 Rh3 Bc8 Re3 fxe3 f4 Kd7 f5 Kd6 a5 Ke5 d6 Kd4 h5 Kc3 f6 c5 h6 g5 h7 b6 a6 a2 f7 a1Q a7 c4 Nh3 g3 Kf3 g2 Nf4 g1N+ Kg3 g4 Qf3 d1B Qg2 e2 Ba3 e1Q+ Qf2 Na6 Ne6 Nc7 Kf4 g3 Kf5 g2 Kg6 Ne7+ Kg5 Qe3+ Qf4 Ne8 Nc5 Nh3+ Kh4 g1Q Nd7 Nf2 Qh6 Bb3 Kh5 Ng4 Nf6 Qf3 Be2 Qd7 Bd1 Rg8 Bc5 Kb2 h8B c3 Bf2 c2 Nd5+ Ng7+ Kg5 c1N Nf4 Qh2 Nh3 Ne2 Bg1 Nd5 Kg6 Nec3 Kh7 Be7 f8B Bh4 Be7 Nb1 Bd8 Ne7 Bc7 Qa2 Qf4 Ka1 Qh6 Ba6 Qf4 Nc8 Qf8 Bac4 Bf2 Be6 Bg1 Rb8 a8B Qaa4 Bb7 Qa8 Bc6 Rb7 Ba4 Ra7 Bb5 Ra2 Ba4 Re2 Bc6 Qd8 Be8 Qd7 Bh5 Re1 Qe7 Ne5 Bg4 Nf5 Bh5 Rg3 Bf6 Ng7 Qf8 Qf7 Bg5 Qd7 B5e3 Ng4 Bef2 Bf5+
2n2b2/kB3B1b/2B2B1p/2n1P1bK/2Pprq1p/Pp3n2/3p1R2/1r3Q1B w - - 0 1 illegal: No proof kernel
2N5/p3Pp2/1b2Bb2/1r1bb1q1/1Q1nrNP1/1rNN2K1/1n3P1N/kn4qr w - - 0 1 legal: proof: a4 c5 b4 Na6 b5 Nb8 Bb2 d6 c4 d5 Bc3 d4 Ra2 dxc3 Rb2 Bh3 Rb4 Bc8 h4 cxb4 d4 e5 g4 g5 d5 gxh4 a5 b6 Rh3 bxa5 Rd3 Nh6 Rd2 Ng8 Rd4 exd4 e4 Ke7 b6 Kf6 c5 Ke5 b7 h5 d6 h3 c6 d3 c7 Kd4 d7 c2 e5 c1B e6 h2 Qb3 h1Q Nd2 h4 Qd5+ Kc3 Qe4 Kb2 Qc4 h3 Ndf3 a4 Nd4 d2+ Ke2 d1N Ndf3 h2 Qa6 b3 Bh3 a3 Qd6 a2 Qb6 a1B Ne1 Bf4 Bg2 Nc6 Kf3 Nf6 b8N Be5 Nh3 Ne4 Qd4+ Nec3 Qb4 Qg5 d8N Bb7 c8N Rh5 Qc5 Nb1 Nd7 Qg1 Nf4 h1R Nf6 Nd4+ Kg3 Bd5 Qb4 Bc5 Nb7 Bb6 Nc5 Ka2 Nfe4 b2 Ncd3 Rb8 e7 Rh6 Nf3 Re6 Ncd6 Bf6 Ned2 Re4 Nh2 Re6 Nb7 Bb3 Nhf1 Nbc3 Na5 b1R Nb7 Bd8 Qb6 Nc2 Qe3 Re5 Nd6 Rbb5 Qc5 Bb6 Qd4 Bc4 N2e4 R1b3 Nh2 Nb1 Qc5 Bd4 Nc8 Ka1 Qb4 Nb2 Nc3 Re1 Kh3 Bde5 Bd5 Nd4 Be6 Re2 Nh5 Re4 Nhf4 Qf1+ Kg3 Bd5 Nd1 Qe1 Nc3 Qg1+
1b2bnkq/nr2r3/1N1bNP2/3nN2p/rP2p1Nb/4P3/1NKp1R2/1B4n1 w - - 0 1 legal: proof: g4 f5 d3 b5 g5 h6 g6 Rh7 Bg5 hxg5 Qc1 Rh4 Qf4 Rh8 Qg4 fxg4 h4 c5 b4 Nh6 a4 bxa4 d4 cxd4 h5 Ng8 h6 Nc6 h7 Nb8 Ra3 Bb7 Rah3 Bc8 Rh6 gxh6 Kd1 d5 c4 e5 f4 a5 e3 e4 f5 d3 f6 d4 g7 Kf7 c5 d2 c6 a3 c7 a2 Bg2 a1R Bf1 a4 Kc2 d1N Kd2 a3 Bh3 a2 Bf1 g3 Kc2 d3+ Kc1 g4 Rh5 g2 Kd2 g3 Ne2 g1B Nd4 g2 Nc6 Ne7 g8N Ra4 Ra5 h5 Rb5 Nc3 Rf5 Ned5 Kc1 d2+ Kb2 Nb5 Nc3 Bd7 c8N Be8 Nd4 Na7 Nc6 Bf2 Nd4 g1N Nb6 Nd7 Kc2 Bh4 Ne6 Bd6 Bd3 Nf8 Nd1 Bb8 Nb2 Rc1+ Kb3 a1B Bb1 Rc7 Rf2 Rb7 Kc2 Bd6 Nd1 Bae5 Nh6+ Kg6 Ng4 Kf7 Nb2 Rg8 Rf4 Rg7 h8N+ Kg8 Ng6 Rge7 Rf5 Bb8 Rf2 Bed6 N6e5 Qd7 Ng7 Qf5 Ne6 Qh7 Nh2 Qh6 Nhg4 Qh8
1R3n1K/pRq2bn1/2Q1r3/1n3rP1/1Qr2rQ1/Bb1P4/4Pk2/bn1Qn3 w - - 0 1 legal: proof: b4 e5 f4 exf4 a4 d5 c4 b5 axb5 Bd6 g3 Na6 Bh3 Nb8 Bf5 dxc4 Bc2 Be7 Bb3 Bf8 g4 cxb3 Kf1 f3 Nh3 g6 Nf4 g5 Nc3 h6 Ne4 gxf4 Ke1 h5 g5 Qd4 Nf2 Qd8 Ng4 hxg4 Kf2 Ke7 h4 Kd6 b6 Ke5 h5 Ke4 h6 f5 b5 c5 b7 g3+ Ke1 b2 b6 b1N h7 f2+ Kf1 c4 Kg2 f1B+ Kg1 g2 Kh2 g1N Ra2 f3 Kg3 f2 Kh4 f4 Kh5 f3 Kg6 c3 Qe1 c2 Kf7 Ne7 Ra5 Be6+ Kf6 Qc7 Rh6 Bb3 Rh5 Nf5 Ba3 c1N d3+ Ke3 Be7 Ng7 Ba3 Bg2 Rh3 f1R Qc3 Nd7+ Kg6 Kf2 b8Q Na2 Qd2 Nac3 b7 Nb5 Qd8 Rc8 b8Q Be7 Qb4 Re8 h8Q Bf6 Kh7 Re6 Qg4 Ba1 Qde8 Nf8+ Kg8 Bh1 Rh7 Bg2 Qc6 Bh3 Qa4 Bf5 Qg4 Bg6 Rh4 Bh5 Qh6 Bf7+ Kh8 Qe5 Qc1 Rc4 Qd1 Qc7 Ra6 Nh3 Qf6 Nf4 Rb6 Ng2 Rh7 Ne1 Rb7 Rh1 Qc3 Rh4 Qc8 Rf4 Rb8 Rf5 Qgb4 Rc4 Qcc2 Kg1 Qcc1 f2 Qf4 f1R Qg4+ Qg3 Qc6 Kf2 Rh3 Qc7 Re3 Ref6 Re7 Re6 Rd7 Ke3 Re7 R1f4 Rd7 Kf2 Re7 Qa5 Reb7 Qc7
2q5/2N1rQbk/2nq3n/2Q2p2/1bP3qN/rB2n1r1/PnK1QP1Q/b2b4 w - - 0 1 illegal: No possible last move
K1N1k1n1/8/qrbR1rN1/P1RRp2P/2P5/nR1r3b/pnR4q/b3n3 w - - 0 1 illegal: No possible last move
3k4/1P1P1pQ1/2Qrrp1K/P6Q/1Q3r2/pq1Q1pn1/1rRnb3/1b2N3 w - - 0 1 legal: proof: c4 d5 d4 b5 f4 g5 a4 gxf4 b3 b4 Qc2 Bg7 Bb2 Be5 dxe5 d4 Ba3 bxa3 Qd1 Qd5 cxd5 h5 g4 a5 b4 Kd7 g5 Na6 b5 Nb4 Nc3 Ke8 Rb1 Na6 Rb4 axb4 Ne4 Nb8 Nf6+ exf6 Bh3 Ra5 Bf5 Ra8 Bg4 hxg4 Kf2 c5 h4 d3 e4 b3 b6 g3+ Kf3 b2 h5 b1Q g6 d2 h6 g2 d6 c4 h7 c3 e6 c2 Kg4 c1R Kh5 Rc4 g7 Qd3 b7 Ra6 e5 Qb3 a5 Nh6 e7 Nc6 Nf3 g1R Ne1 f3 Rh2 Rg2 g8Q+ Kd7 Qb1 d1B Qd3 Nd4 Qg7 Re8 h8Q Rb2 Rc2 Be2 Qhf8 Nhf5 e6+ Kc6 Qfh8 Ng3+ Kh6 Rd8 e8Q+ Bd7 e7 Rb6 Qef8 Bf5 Qhh7 Kd7 Qe3 Bfd3 Qe5 Re8 Qh5 Rbc6 Rc3 Bb1 Qd3 Qa4 Qgg6 Nb3 Rc2 Nd2 Qfg7 Rf4 Qge4 Qb3 Qb4 Rd8 Rc4 Ke6 Rc2 Rd7 e8Q+ Re7 d7 Rd6 Qa8 Re8 Qa7 Ke7 Qaa6 Kd8 Qc6 Ree6
1q2n3/4B2p/1p6/brP3Q1/nP1P4/brQ2p1k/r3BrrB/1BK1B1q1 w - - 0 1 legal: proof: h4 g5 f4 gxh4 a4 e5 a5 c6 f5 Qf6 Nh3 Qd8 Nf4 exf4 Nc3 c5 Nb5 Qf6 Nd4 Qe7 Nf3 Qd8 d4 c4 Ne5 Bc5 Nd3 cxd3 Ra4 Be7 Ra1 Bf8 b3 d5 g4 f6 c4 b6 e4 Qc7 a6 Bd7 c5 Be6 e5 Bc8 e6 Bb7 axb7 Qd7 Rh3 Qd8 Re3 Qe7 Re5 fxe5 Ra2 Qd6 Rc2 Qd8 Rc4 dxc4 Kd2 Ke7 g5 a5 g6 Kf6 e7 Kg5 e8Q f3 g7 Kg4 f6 c3+ Ke3 c2 Kd2 h3 f7 h2 Bb2 c1B+ Ke1 h1Q Qa4 e4 Qc2 e3 Kd1 e2+ Ke1 d2+ Kf2 e1R Bc4 d1R Qg6+ Kh3 Qb1 Nc6 b8B Rd3 Bf4 Nb4 Qa3 a4 Bg3 Na2 Bf4 Qb8 Bd5 Nc3 Qba2 Nf6 g8B Bh6 f8B Ra5 Be7 Rb5 Bh2 Bhd2 Qb4 a3 Be4 Na4 Qc4 Ba5 Bc3 Ne8 Qd2 a2 b4 Ba3 Qf4 Rb1 Be1 Rdb3 Qc3 a1R Ke3 Ra2 Bc4 Rf2 Be2 Rg8 Kd2 R1b2+ Kc1 Rgg2 Qg5 Qg1 Bb1 Ra2+
4rnn1/n3n3/pp3bbP/1b4kN/b1K2N2/NP3rN1/b4pPN/2B2N2 w - - 0 1 illegal: No proof kernel
1q3k1B/Q4Prr/8/2r2b2/nP2qN1q/1q2bnp1/bR1PP3/N1K1b2B w - - 0 1 legal: proof: c4 b5 a3 b4 axb4 d5 Ra5 dxc4 Ra2 Nd7 Ra1 Nb8 g4 h5 b3 hxg4 Bb2 a5 Ba3 e5 Bb2 a4 Bc1 axb3 f3 f5 Ra6 e4 Rg6 e3 Qc2 Nc6 Qa2 Nb8 Qa7 g3 Rg4 fxg4 Kd1 Qd4 Qb6 Qd8 Qh6 Kf7 Qh3 Ke7 Qg2 Ke8 Qf2 exf2 h4 g5 h5 c5 f4 g2 h6 c3 f5 g3 f6 g4 h7 b2 Nf3 g1Q Ne1 g2 Rh2 g3 Rh6 c4 Rh5 Bc5 f7+ Kf8 Na3 b1B Rh2 Ne7 Bb2 c2+ Kc1 Nbc6 Nb5 Qh1 Ba1 g1B Rg2 Be3 Nf3 Qh4 Na3 Nd5 Ne5 Nd4 Nd3 Bf5 Nb2 Nc3 Rh2 Qb8 Na4 Nf3 Nc5 Na4 Rh3 Ba2 Ne4 Ra6 Rh1 Rg6 Nc3 Rg7 Bg2 f1Q+ Nd1 Qf2 Nb2 Qe4 Nd3 Qh4 Bh3 Qg2 Nf4 Bgf2 Rd1 Qh1 Bg2 Be1 Bf6 Ng1 Bc6 Qe4 Bd5 Nf3 Be5 Rhg8 h8Q Rh7 Qf6 Rg5 Qa6 Rgg7 Qa7 Nc5 Kb2 c1R Bc6 Rc3 Rb1 Rc1 Nc2 c3+ Ka3 Na4 Na1 c2 Rb2 Rd1 Bc3 c1Q Ba8 Qcc2 Bd4 Rg4 Bh8 Rgg7 Bb7 Rc1 Ba8 Bae6 Bd5 Qcd3+ Ka2 Rc2 Kb1 Qb3 Bc6 Qee5 Ba8 Rc5+ Be4 Bc4 Kc1 Qee7 Ba8 Qe4 Qa5 Qee7 Qc7 Qc3+ Kd1 Ba2 Qa5 Ng1 Bh1 Qe4 Qa7 Qcd3 Qc7 Nf3 Qa7 Ra5 Kc1 Qb3 Nd3 Re5 Nf4 Rc5+
b1R1rnr1/b1Bk1p2/q2P1q2/q1rp4/nNP5/P4P2/1B2Rn1K/1b2Q3 w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 c6 d5 cxd5 e5 d6 exd6 h5 g4 hxg4 a3 b3 Bd2 b2 Bh3 Rxh3 Nc3 b1Q Bc1 Rh5 Ne4 Rh8 Nd2 Qa2 Nb1 Qxb1 Kf1 g5 Kg2 e5 c4 b5 h4 e4 h5 g3 h6 g4 h7 e3 f3 b4 Qd2 b3 Ra2 b2 Qe1 e2 Qa5 e1Q Qb6 Qf6 Rh4 Nh6 Qb7 Qa5 Be3 Nd7 Bf2 Bg7 Qc7 Bb7 Ba7 Rc8 Nh3 Ba8 Be3 Nf8 Qb7 Rc5 Qa6 Kd7 Nf2 Qc2 Bf4 b1B Be3 Qca4 Kh1 g2+ Kh2 g1N Nd3 g3+ Kh1 g2+ Kh2 Ne2 Nb4 Nc3 Re2 g1R Rh3 Rg8 h8B Re1 Qb6 Qa6 Qa5 Q4b5 Rh5 Na4 Re5 Qbb6 Re8 Qbb5 Rc8 Ng4+ Kg2 Nf2 Kh2 Bh6 Bd4 Be3 Bb2 Qc3 Bf6 Qd4 Bd8 Qf6 Bc7 Bd4 Rd2 Re8 Re2 Be3 Nd3 Qbb6 Qe1 Qba5 Nb4 Rb5 Qc1 Ba7 Qe1 Rc5
3n2Q1/2K2BN1/1P1p2q1/5nn1/bBRP1Pr1/P1r5/Rb1pqk2/1q1n2r1 w - - 0 1 legal: proof: h4 c5 d4 b5 e3 g5 Rh3 gxh4 Rh2 f5 Qd3 c4 Rh1 f4 exf4 cxd3 c4 bxc4 b4 e5 f3 e4 Na3 exf3 b5 a6 Nc2 a5 Nb4 axb4 Kd2 Ke7 Ke3 Ke6 Ke4 h5 g4 c3 g5 h3 g6 d2 g7 c2 b6 h2 Bg2 f2 Bf1 b3 Ne2 h4 Nc3 h3 Bd3 f1Q Nb5 b2 Nc3 b1Q Bb2 c1R Rg1 h1N Rg2 h2 Rg3 Rh3 Rg1 Ba3 Na4 d6 Rg4 Qg5 Rg2 Ng3+ Ke3 Kd5 Re2 h1N Bb5 Nf2 Be8 Nh6 g8Q+ Nf7 Qh7 Bd7 Qg8 Nc6 Nc5 Nd8 Re1 Qgg6 Ne6 Ng5 Bf7 Ba4 Bc3 Bb2 a3 Qc4 Rh1 Rg1 Ra2 Rc8 Bb4 Rh4 Rh3 Rg4 Rh1 Nh7 Kf3 Nd1 Rh5+ Nf5 Ng7+ Qe6 Rh3 Qcc2 Rh1 Kc4 Rh3 Kd3 Rh5 Rc3 Rg5 Ne7 Rc5 Nf5 Rc8 Qg6 Rc4 Qb3 Bc5 Qb5 Bb4 Kc2+ Ke4 Qa6 Kd5 Kd3 Rc8 Ke2 Rc7 Ng5 Rc4 Nde6 Qb8 Kf2 Qg8 Bc2 Kc6 Nd8+ Kc7 Ba4 Rc5 Qad3 Rc4 Qe2
3n2b1/1r1q4/Q1b1r3/2PB1p2/pp1PpP2/P1bNB2N/b2n1qRK/k7 w - - 0 1 legal: proof: g4 d5 h4 g5 b4 c5 e4 dxe4 bxc5 Bxg4 h5 Bc8 h6 g4 Bc4 g3 Be2 Bxh6 Bf1 Bf8 d4 Na6 f3 Qb6 a3 Nb8 Ra2 Qd8 Qd3 exd3 Rb2 Nh6 Rb6 Ng8 Rg6 Bh6 Re6 Bf8 Kd1 Nc6 Re2 Nb8 Rf2 gxf2 c4 Kd7 f4 Kc6 Rh6+ Be6 Kd2 a5 Ke3 b5 Kf3 f5 Kg2 d2 Rh5 d1B Be2 f1Q+ Kh1 a4 Bd3 Bb3 Nc3 Ba2 Ne4 Ra6 Rh4 h5 Kh2 Rh7 Bb2 Qf2+ Kh3 Nf6 Nc3 Ne4 Nf3 Nd2 Bc1 Qd7 Bf1 Bg8 Ng5 e5 Rg4 h4 Rg2 Bd6 Kh2 h3 Kh1 h2 Nd5 Bc7 Be2 Ba5 Ne6 Bc3 Ng5 Rg7 Bf3 b4 Nh3 Rb6 Be4 Rg6 Bf3 Rb7 Nc7+ Ne4 Be3 Re6 Nd5 Nd2 Nf6+ Kc7 c6 Kb6 c5+ Kb5 c7 Kc4 c8Q Kb3 Qc6 Kb2 Qa6 Nc6 Ng4 Nd8 Bc6 Ka1 Bd5 Qf3 Ngf2 Qe2 Rg4 Qe1+ Kg2 h1B+ Kh2 Bf3 Nd3 Qf2+ Rg2 Be4 Bb3 Bc6 Bd5 e4
3Kb3/b4br1/2b2q2/np1Pq2k/1N1Rrb1N/P3PP2/n7/1qnBBbQ1 w - - 0 1 legal: proof: h4 d5 c4 dxc4 g4 f5 b4 fxg4 d4 g5 a3 gxh4 d5 a5 Ra2 axb4 Rd2 e5 Rd4 exd4 Kd2 Kf7 f3 Kg6 Rh2 h5 Qb3 c5 Nh3 d3 Ke3 c3 Ke4 g3 Ke5 c4 Ng1 d2 Rg2 d1B Qb2 b3 Qd2 c2 Qf4 h3 Nc3 h2 Na4 h1Q Nc3 h4 Bb2 c1B Nh3 Qf6+ Ke4 Ra4 Qe5 Bf4 e3 Nc6 Nb5 c3+ Nd4 c2 Rf2 c1N Bd3 g2 Qd6 g1Q Qc7 Be6 Qc8 Qgh2 Bf1 Rh7 Bc4 Bc5 Qd7 Kh5 Qe8+ Bf7 Rc2 Na5 Ba1 b2 Be2 b1B Bb2 Rg7 Qc8 Ba7 Qf8 Ne7 Bc3 Nec6 Qg8 Nb4 Nf2 h3 Be1 Nba2 Nd3 Rc4 Rd2 Ba4 Bd1 Bc6 Qf8 Bc2 Qg8 B2a4 Nb4 Bce8 Rd3 Bac6 Rd2 b5 Rd3 Rc3 Nf5 Rc4+ Rd4 Qg3 Nh4 h2 Ba4 Qhg1 Bc2 h1B Bd1 Qd6 Kf5 Bg2 Bd2 Qf8 Kf6 Bf1 Be1 Q3h2 Rd2 Re4 Rd4 Rh7 Qg2 Rg7 Qg3 Qb2 Qh2 Qg3 Qg1 Qb1 Ng6 Qh8 Nh4 Be5+ Ke7 Bf4+ Kd8 Qg5+ Kc8 Qe5 Kd8 Qh6 Qh1 Qhe6 Qg1 Q6f6+
QR2q3/r1PbnK1P/rP1bn2R/5Pb1/1pr2Nk1/N7/1n1B4/n3nb1q w - - 0 1 legal: proof: b4 f5 d4 h5 g4 hxg4 e4 fxe4 a4 c5 a5 cxd4 b5 Nf6 a6 bxa6 b6 Ng8 Bb5 axb5 Kd2 Kf7 c4 Ke6 f4 Kf5 h4 g5 c5 d5 h5 a5 h6 e5 c6 d3 Ke3 a4 h7 a3 c7 d2 Qe2 d1N+ Kd2 e3+ Kd3 g3 Qh2 d4 Qe2 e4+ Kc2 g2 Kb3 b4 Kc4 g4 Qd2 g3 Ra2 d3 Qc3 d2 Qd4 e2 Rb2 e1N Rh4 a2 Rb3 a1N Rc3 e3 Rh5+ Kg4 Rh1 e2 Rf3 Nd7 Kd5 Ra6 Ke6 Qe8+ Kd5 Bd6 Rf1 Ne7+ Ke6 Nf8+ Kf6 Bd7 Kg7 Ne6+ Kf6 Nb2 Rf3 d1B Nh3 g1Q Qe4 g2 Rh2 Qh1 Rf1 g1B Bd2 Be3 Na3 Bc2 Qc6 Bd3 Qa8 Rg8 Rff2 Rg5 Rf3 Rga5 f5 Rc5 Nf4 Rc4 Rf1 Nec2 Rf3 e1R Rh6 Bf1 Rfh3 Rb1 Rh2 Ne1 Re2 Qh8+ Kf7 Rd1 Nh3 Bg5 Nf4 Ra7 Bc1 Rd5 Bd2 Rda5 Re4 R5a6 Re5 Nf8 Ree6 Qe5 Reg6 Qe2 Rg8 Ne6 Rb8 Qe5 Ng6 Qh8 Nf4 Qe8+
qrrrQ3/2p4K/4b1PB/1RnbP1n1/PB1b4/nn1N4/1q1PqrN1/k7 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 gxf4 a4 e5 c5 h5 g5 e4 Bh3 d6 Bg4 dxc5 Ra3 hxg4 Rb3 c4 Rf3 exf3 Kf2 Ke7 h4 Kd6 e4 Kc5 h5 f5 g6 b5 h6 c3 h7 Kc4 e5 b3 Rh5 c2 Rh1 g3+ Ke1 b4 Kf1 f2 Ke2 f1B+ Kf3 g2 Qe1 b2 Na3+ Kb3 Qe4 Ka2 Qd3 b1Q Qd6 b3 Rh2 b2 Qa6 Bc5 Rh4 Bd4 Qc6 Bc4 Qb6 Na6 Qb4 Bd5+ Ke2 f3+ Kd3 f4 Nc4 f2 Rh6 f1R Rh2 f3 Qa5 f2 Nf3 g1R Nh4 Ka1 Ng2 Nf6 Qb5 Ne4 Rh4 Bce6 Qe8 Ng5 Rh3 Rg8 h8B Rc8 Bg7 Nc5+ Ke2 Rh1 Rb3 Rhh8 Rb5 Qa2 Bf8 b1N Nb2 Na3 Nd3 Qb2 Bg7 Rb8 Bh6 Qc8 Qd7 Rd8 Qe8 Bc3 Ke3 Bd4+ Kf4 Qa6 Kg3 Qa8 Kh4 Rf8 Kh5 Rdc8 Qf7 Rfd8 Qg8 Rd1 Qe8 f1Q Bg7 Qe2+ Kh6 Rf1 Bf8 Nf3 Kh7 Rf2 Bh6 Ng5+ Kh8 Qb3 Bb2+ Kb1 Bc3 c1N Bb4 Qb2 Kg7 Ka1 Kh8 N1b3 Kg7 Nge4 Kh7 Ng5+
r4r1R/qbP2Nr1/6N1/1RnPPP1r/n5qB/2k3pK/p2nb2b/1Q2r3 w - - 0 1 illegal: No proof kernel
2bqn3/nB1P1Kb1/3qN2b/kPPQRn1q/4nN2/3p1p2/1b2rP2/r6B w - - 0 1 legal: proof: b4 c5 d4 d5 a4 g5 h4 gxh4 e4 dxe4 d5 b5 Be3 bxa4 Bd4 cxd4 Ra3 Qa5 Rc3 Qd8 Rb3 axb3 Ke2 Kd7 c4 Kc7 g4 Kb6 g5 e5 d6 h5 d7 f5 g6 a5 g7 d3+ Ke3 b2 b5 f4+ Kd2 f3 Kc3 a4 c5+ Ka5 Kc4 h3 Kd5 h4 Ke6 h2 Na3 b1N Nc2 a3 Ne3 h3 Nf5 a2 Nd4 a1B Qc1 e3 Be2 e4 Bd1 e2 Qe3 e1B Qf4 e3 Qg3 e2 Qe5 Nc6 Bb3 Nd2 Bc4 Ne4 Kf7 Bb2 Kg6 Bec3 Qb8 e1Q Qg3 Na7 Qd6 Ngf6 g8B Bh6 Kf7 Ne8 Ne6 Bcg7 Ne2 Qa1 Rd1 h1Q N2f4 h2 Qd5 Qa4 Ba2 Qd4 Re1 Qe5 Bh7 Qd6 Bf5 Rf8+ Kg6 Rf7 Bh3 Re7 Bc4 Qg1+ Bg2 h1N Re3 Nhg3 Bh1 Qh2 Bb3 Nf5 Ba2 Nc3 Re5 Qh3 Qd4 Qh4 Bd5 Ne4 Bb7 Qh5+ Kh7 Rf7 Kg8 Rf6 Qd5 Rg6 Kf7 Rg1+ Ng6 Ra1 Qc6 Re1 Qd5 Re2 Nc7 Ka4 Bg2 Nc6 Bh1 Ra6 Ne6 Na7 Ba8 Kb4 Bc6 Ra1 Bb7 Qh3 Ngf4 Ka5 Ng2 Qg4 Ngf4 Qh5+
3b1r2/1b5p/b2k1rPn/b6K/bN1bQ1q1/1rR2P1P/RNB1Ppnr/8 w - - 0 1 legal: proof: c4 g5 b4 e5 d4 exd4 c5 g4 b5 g3 b6 axb6 Na3 bxc5 Nb1 c4 Qd3 c3 Qd2 Ra5 Qd1 Ra8 f3 Ke7 Qd2 Bh6 Kd1 Bf8 Qe1 Ke8 Qf2 gxf2 g4 f6 g5 Bb4 g6 Bf8 Bg5 fxg5 a4 Ke7 a5 b5 a6 c5 a7 d5 Ra6 c4 Ra2 b4 Bg2 d3 Rd2 b3 Nh3 d4 Rg1 b2 Bh1 g4 Na3 b1B Rc2 g3 Rb2 c2+ Kd2 c1B+ Kd1 d2 Ra2 g2 Nc2 c3 Rb2 Nh6 Rb3 Bg7 Rb4 Rf8 Rb3 Qd7 Na1 Bb7 Rb4 Nc6 Rb5 Qg4 Rd5 Na5 Rg5 Rf6 Rf5 Raf8 a8Q Nc4 Rf1 g1R Re1 Kd6 Nf4 Rg2 Ra5 Bd3 Ra2 Ba3 Qa4 Bb4 Nc2 Ba5 Nb4 Na3 Nc2 Bda6 Nd3 Nc4 Ncb4 Bh8 Kc2 d1R Nb2 Rb1 Kd3 c2 Rc1 Ne3+ Kd2 d3 Qe8 Rg3 Qe4 Rh3 Bg2 Rh5 Bh3 Ng2 Kc3 d2 Kd4 Qf4 Bd7 d1B Ba4 Qg4 Bb3 Rb5 h3 Ra1 Rb1 c1B Bc2 Bg5 Rc1 Bg7 Bb1 Rb6 Rc3 Ba4 Bc2 Rb5 Kd3 Rh1 Kd4 Rh2 Kd3 Nf4+ Ke3 Ng2+ Kd4 Rf4+ Kd3 Bb6 Nc6 Ba5 Kd2 Rb3 Nb4 Nh4 Ke3 Bgd8 Ra1 Qh5 Ra3 R4f7 Ra2 Bgf6 Kf4 Bd4+ Kg3 Rf5 N4d3 R5f6 Nb4 N4f5+ Kf4 Ne3+ Kg3 Qf5 Kh4 Qe6 Kg5 Ng2 Kh5 Qg4+
1B2n3/1NPn2r1/PPpnb3/r1RQp1rP/1r6/p2Nq2k/K4b1q/5r1B w - - 0 1 illegal: No proof kernel
1K4n1/P1rR1Q2/p2PpR1P/1Nr2pb1/B3q3/bN2n1qq/P7/q1rk1b2 w - - 0 1 illegal: Other
2Br3k/p2N1b2/q1q5/1PRq1pp1/r5n1/P1bP4/1qRp2KP/1qNn2Q1 w - - 0 1 legal: proof: e4 e5 c4 b5 g4 bxc4 f4 exf4 g5 d5 g6 dxe4 d3 c3 Bd2 cxd2+ Kf2 hxg6 Ke2 g5 Qc2 g4 Qb3 Rh4 Qd1 Rh8 Kf2 g5 b4 f5 a3 Kf7 b5 Kg7 Qb3 c5 Bh3 g3+ Kg2 f3+ Kf1 c4 Qb2+ c3 Bg2 e3 Ra2 f2 Qc2 Rh4 Qd1 c2 Qh5 c1Q+ Qd1 Qb2 Qh5 Ne7 Nc3 Nbc6 Nge2 Re4 Qf7+ Kh8 Qf6+ Bg7 Qg6 Be6 Nd4 Qd5 Nde2 Rd8 Nb1 Ne5 Ng1 Bf7 Bf3 e2+ Kg2 e1Q Qd6 Ng4 Qc5 Qec1 Ne2 Bc3 Qb6 Qcc2 Nc1 Qa4 Qe3 Qa6 Qe1 Qdc6 Qd1 Nd5 Qg1 Bf6 Nc3 Nde3+ Kh3 g2 Na4 f1Q Nb6 Nd1 Nd7 Bc3 Kg3 Qb3 Rc2 Qb2 Kh3 Ra4 Bd5 Re4 Be6 Qe2 Ne5 Qf2 Bc8 Qd4 Nd7 Qdd6 Qe1 g1Q Qg3 Qe1 Qg1 Qd4 Kg2 Qdd5 Nb3 Bg7 Rc4 Ndf2 Rc5 Bg6 Qf1 Qeb1 Qe1 Bf6 Qe3 Be5 Rhc1 Bc3 Rc2 Bf7 Nc1 Nd1 Qg1 Ra4+
1KR4B/R2P1qp1/br2nkqb/2br3q/6B1/qn1Nb3/PqPP3n/7N w - - 0 1 illegal: Other
b3N1b1/2Pr2Pq/3b4/qK2B3/P1rbNn2/1BR2P1n/2r3Rp/1b1k1r1q w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Qg4 b5 Qh3 b4 Qa3 bxa3 Kd2 Kf7 c4 Kg6 g4 Kg5 f3 Kf4 c5 h5 g5 d5 c6 e5 g6 b5 g7 e3+ Kd3 h3 Ra2 e4+ Ke2 b4 Rc2 a2 Nc3 a1B Bb2 b3 Rh2 d3+ Ke1 h4 Ba3 d2+ Ke2 d1B+ Ke1 e2 Kd2 e1Q+ Kc1 Ke3 Nb5 d4 Bd6 d3 Rc3 b2+ Kb1 Qf2 Ka2 Kd2 Ka3 b1B Kb4 e3 Rc1 e2 Bg2 e1R Be7 Bb3 Nd6 Nf6 Nf7 Na6+ Kb5 Ne4 Rh1 h2 Ne5 h3 Ng4 Bd4 Bd6 Qdh4 Ne3 Rf1 Rc5 Nc7+ Kb4 Bg8 Be7 Ne6 Rd5 N4g5 Nf5 Bb7 Nd6 Nf4 Rf5 Kd1 Ne8 d2 Bd6 Rc8 Rc5 Qh7 Ne2 Ba8 Be5 Bd6 Rg1 h1Q Kb5 h2 Ng3 Ngh3 Rc3 Qe3 Bf6 Qe7 Ne4 Qa7 Be5 Ke1 Ra3 d1R Rd3 Rc1 Rc3 Rc2 c7 Rd8 Re3+ Kd1 Rc3 Nf2 Bh3 Rd7 Be6 N2h3 Nd2 Qd3+ Bc4 Rh4 Rg2 Qh7 Ne4 Ne2 Ng5 Bg1 Bb3 Rc4 Re3 Nef4 Rc3 Bd4 Ne4 Qa5+
r4q2/2R3nN/7N/r1P2PRp/n2P4/Prnn1bq1/B4bk1/2KB1brb w - - 0 1 legal: proof: h4 f5 b4 g5 e4 fxe4 c4 gxh4 b5 d5 b6 a5 Bb2 a4 Rh3 d4 Qb3 axb3 Bc3 dxc3 Rh1 cxb6 Nf3 b5 Ng1 b4 Kd1 Kf7 g4 Kf6 f4 b5 d3 e5 f5 Kg5 a3 Kf4 g5 Kg3 g6 h5 g7 e3 Ra2 e4 Bh3 e2+ Kc1 e1N Rd2 c2 Nc3 e3 Bf1 h3 Rdh2 e2 Rf2 h2 Na2 b2+ Kd2 b1B Nf3 c1R Ne5 b3 Bg2 b2 Rg1 h1B Nc3 b4 Nf7 b3 Nd5 Na6 Ng5 Bb7 Nf7 Nf6 g8B Nc5 Ng5 Ne8 Nf3 Ng7 Rgf1 Ra5 Nh2 Na4 Rf4 Bc5 R1f2 Qf8 Rf1 Bf2 d4 Nd3 Nf6 Bf3 Nh7 Bc2 c5 b1R Re1 b2 Ng4 Bb3 Bd5 Bc4 Nh6 Rc3 Be6 Rb3 Rg4+ Kh2 Rg1 e1Q+ Kc2 Ra1 Rg5 b1N Bh3 Nbc3 Bg4 Bb5 Bf7 Qe5 Re1 Qg3 Re7 Kg2 Rc7 Rg1 Kd2 Ne1 Kc1 Bf1 Bd5 Rb8 Ba2 Rb3 Kd2 Nd3 Kc2 Bb7 Bd1 Bf3 Kd2 Qd6 Kc2 Rha8 Kd2 Qf8 Kc2 Ne1+ Kc1 Nd3+
1B6/B1Q2n2/N3qP1k/1prRrb2/rn6/q1n2n2/q1PPKBP1/rq6 w - - 0 1 legal: proof: e4 d5 a4 dxe4 h4 f5 b4 g5 a5 gxh4 b5 c6 b6 Bg7 Bb5 cxb5 Nc3 Be5 Na2 Bd4 Nb4 Bc5 Na6 bxa6 b7 Bb6 Ra4 e3 Re4 fxe4 axb6 Be6 Rh3 Bd7 Rh1 Bc8 f4 Kf7 f5 Kg7 Nf3 h5 Ke2 e5 Kf1 a5 Nd4 e2+ Kf2 e1R Rh2 a4 Ne2 a5 Bb2 a3 Bc1 a2 Bb2 a1Q Ng1 e3+ Kf3 e2 Kf2 a4 Kf3 a3 Ke3 h3 Bc1 a2 Kf2 e4 Ba3 h4 Bc1 e3+ Kf3 Qd5+ Kf4 Ra4+ Kg5 Na6 b8B Nh6 Nf3 Nb4 Kf4 Nf7 b7 Rh5 f6+ Kh6 Rh1 h2 Bc7 h3 Rf1 h1N Bb6 h2 b8B Ng3 Nd4 h1Q Ne6 Qb2 Rf2 a1R Nc7 Qda2 Kf3 Qba3 B6a7 Rc5 Na6 Qh3 Rf1 Qd7 Bb2 Qe8 Rg1 Bf5 Bd4 Qee6 Qb1 Rd1 Qc1 e1Q Qb1 e2+ Qb3 Rd5 Qd3 Qf1+ Bf2 e1N+ Kf4 Rdb1 Qc3 Nf3 Qc7 Qfc1 Re1 Rc5 Re5 Rb3 Bb6 Re3 Rd5 Re5 B6a7 Qcb2 Rd4 Ne4 Rd5 Nd3+ Ke3 Nb4+ Ke2 Qbb3 Rd7 Qbb1 Rd5 Nc3+
1rrN1Bbr/P6r/1n1R2Qb/1P1n1n1p/1b2q2P/1P1k1n2/B3nBK1/6b1 w - - 0 1 illegal: Other
R1bnqqn1/1B3b1P/2rp3Q/PN4q1/7b/1NNK2k1/rq1PP1n1/4b1n1 w - - 0 1 legal: proof: b4 e5 a4 a5 g4 axb4 f4 exf4 c4 bxc3 Ra3 g5 Rb3 h6 Rb4 f3 Rf4 Ra6 Ba3 Ra7 Be7 gxf4 g5 Ra5 g6 Ra8 Bg5 hxg5 h4 Ke7 g7 Kd6 h5 Ke5 h6 b5 h7 f5 Qc2 c5 Bg2 f2+ Kd1 f1N Bd5 d6 Kc1 f3 Be4 Kf4 Rh3 g4 Rh4 c4 Rh2 g3 Bb7 b4 Rh5 f2 Rh3 b3 Be4 g2 Bd5 b2+ Kd1 Nc6 Rh4+ Kg3 Nh3 g1N Qb3 f4 Kc2 f3 Qb7 Qg5 Qe7 Nd8 Qa7 Be7 Na3 b1B+ Kc1 c2 Nb5 Ba2 Qd4 Ne3 Qc5 f1Q+ Kb2 c1B+ Kc3 f2 Rh6 Ba3 Qb6 Ng2 Rh4 Bc5 Bb7 Ra5 Kc2 c3 Kd3 c2 Nf4 c1Q Ne6 Qb2 Ned4 Bf7 Nb3 Qfa1 Qc6 f1Q Re4 Bf6 Re8 Bf2 Qb6 Be1 Qe3+ Qf3 Rf8 Ra6 a5 Qa4 Re8 Rc6 Rf8 Qge5 Re8 Bh4 Rf8 Qg5 Re8 Ne7 g8N Rc2 Nf6 Ng8 Nd5 Rc6 Na3 Rc2 Rf8 Qe8 Nc3 Rc1 Kd4 Ra1 Nb5 Ra2 Qe6 Qee7 Re8 Qc6 Qh6 Qf8 Kd3 Qd7 Re4 Qde8 Rc4 Bf2 Rc6 Be1 Ra6 Nf6 N3d4 Nc6 Nd1 Qd8 Ra7 Qfe7 Qg6 Bce6 Ra6 Rf8 Ra8 Ng8 Nf2 Qb8 Nh3 Rc8 Qh6 Qf8 Nb3 Rc7 Nf4 Qbe8 Nd5 Nd8 Ndc3 Bc8 Rb8 Rc4 Ra8 Rc6
2B3nn/b1rPP2K/p1R3P1/1n4Q1/bk3N2/3rp1P1/bNq1N3/1brb3r w - - 0 1 illegal: Other
b2N1K2/1rb1Pb2/R1p1n1Pk/1p1R2qn/1PQ1r1R1/1rPbrn2/8/5B1q w - - 0 1 legal: proof: b4 e5 d4 exd4 f4 a5 g4 h5 a3 g5 Nc3 gxf4 g5 a4 Nd5 Bh6 Ne3 Bf8 Ng4 hxg4 Nh3 Ra6 Qd3 Ra8 Qb3 axb3 a4 b2 Ng1 Bc5 Bd2 Bf8 Rd1 b1Q Bc3 Qc1 Ba1 Qxa1 Kf2 b5 e4 f5 h4 Kf7 a5 Kg7 c3 d5 e5 d3 h5 d4 a6 g3+ Kf3 g2 e6 d2 a7 d3 g6 c6 Rh4 Bd6 Rh1 Bc7 Rh3 Qg5 e7 Na6 Ne2 g1N+ Kf2 f3 Rh4 f4 Rh3 Nf6 Ng3 Nc5 Be2 Rb8 a8R Rb7 Rc1 d1B Rh4 d2 Bf1 Ne6 Bh3 Kh6 Bf1 Bb3 Ne2 d1R Rg4 Rd3 Rd1 Re3 Ra6 Rd8 Rd2 Rd4 Rd1 Rde4 Nd4 Nc5 Rd3 Bf7 Ne6 Qb1 Nd8 Ne6 Bg2 Ra7 Rd2 Bb7 Rd5 Ba8 Bf1 Rb7 Rd4 Ne2 Rd5 N2d4 Bg2 Qh1 Bf1 Kg7 h6+ Kg8 h7+ Kg7 Ra4 Kh6 Ra2 Nh5 Ra6 Ne2 Ke1 f2+ Kd2 f3 Kc2 Bg8 Kd2 Ng1 h8Q+ Bh7 Qd4 Bg8 Qc4 Bf7 Be2 f1R Bd3 Rb1 Bf1 Re2+ Kd3 f2 Ra1 Neg7 Ra6 R4e3+ Kd4 Rb3 Kc5 Re1 Kd4 Nf3+ Kc5 Bb6+ Kd6 Bc7+ Kd7 Ne6 Bh3 f1B Bg2 Bd3 Bf1 Bg8 Ke8 Re4 Qc5 R1e3 Qc4 Ned4 Kf8 Be6 Ra5 Bf7 Ra6 Ne6+
1b1K1B1k/p1rPP1rr/n1B1nP2/3Nq1Q1/r1B2Pp1/q4r2/5qp1/1b2R3 w - - 0 1 illegal: Other
3rRK2/r1qp1n1P/q2PN2p/4Q3/B3p1q1/2b2b2/R1RPkP2/n1r1b2r w - - 0 1 illegal: Other
qn4q1/q5N1/rb6/1nb1n3/n1PB1Rrk/pP1P4/1Pr3RK/n2Q2Q1 w - - 0 1 legal: proof: f4 e5 h4 exf4 e4 d5 h5 dxe4 h6 Be6 Nh3 Bb3 Ng1 gxh6 Bc4 h5 Bf1 h4 axb3 c5 Be2 c4 Kf1 c3 Ba6 bxa6 d3 a5 Nd2 cxd2 Rh2 a4 Rh3 Kd7 Rh1 Ke8 c4 Ke7 g4 Kf6 Kg2 Kg5 Qf1 d1N Qf2 h5 Qb6 f5 Rh2 a5 Ra2 e3 Qd6 e2 Qd4 e1B Bd2 h3+ Kh1 a3 Qc3 h4 Re2 h2 Re8 a4 Re6 Ne7 Bc1 Ng6 Be3 Ra6 Qg7 Nc3 Bc5 f3 Rc6 f4 Bb4 f2 Qd4 f1Q Rf6 f3 Qa7 f2 Bc5 Rg8 Rc6 Nb5 Qb6 Ba5 Rc8 Ne5 Ra1 a2 Rc6 a3 Qa7 Bb6 Rc1 a1N Bd4 Bfc5 Rd6 Rg6 Qa8 Qg8 Rf6 Qd1 Kg2 h1N Rf4 f1R Kh2 h3 Qf3 Ng3 Ne2 Kh4 Rc2 Ne4 Ng3 Nec3 Nh5 Na4 Rg2 Rf2 Ng7 Rc2 Qe2 Qf1 Qd1 Qf3 g5+ Qg4 Rf1 Qd7 Rf7 Qa7 Rf1 Rf6 g6 Rf4 Rff2 Rg4 Rf4 Qh7 Ne8 Qg8 g7 Qgf7 g8Q Qf8 Kh1 h2 Qg6 Qg8 Ng7 Rd2 Qe4 Re2 Qe3 Rc2 Qeg1 Rc1 Rg3 Rc3 Kg2 h1Q+ Kf2 Qhd5 Kf1 Qd6 Kg2 Qdd5+ Kh2 Rc2+ Rg2 Qda8
1BnK2R1/4b2r/1rPQbp1P/p2n1n2/R1N4P/bk4bn/4Pb2/5n1Q w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 e5 a5 exf4 g3 d3 c3 b6 Bh3 bxa5 Bg2 a4 h4 Ne7 g4 Ng8 Na3 Qa5 Be4 Qh5 Nc2 dxc2 Bg6 hxg6 gxh5 g5 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kd4 a5 b4 f3 h6 g4 b5 g5 b6 g3 c4 f6 b7 g2 c5 a3 c6 f2 Qe1 f1N Bb2 c1B Qg3 g4 Nf3 g1N Nd2 a2 Rh2 Nd7 b8Q Nb6 Nf3 Rh7 Qa7 Rb8 Qb7 Nh3 Ne1 Ne7 Kc5 d4 Rh1 d3 Rg1 d2 Qa7 d1N Rg2 Nbd5 Rb1 a1B Rf2 Nd1e3 Rg2 Rb6 Nd3 N3f5 Be5 Ba3+ Rb4 B1b2 Bc7 Be5 Bb8 Bf4 Qh2 g3 Qh1 Be5 Rg1 g2 Qc7 Bg3 Ne5 Bd7 Nc4 Nc8+ Nd6 Ke5 Qd8 Be6 Qe7 Ra6 Nc4+ Ke4 Kb5 Kd4 Ra4 Kc3 Qc7 Kb3 Qd6 Nd2 Rf1 g1B Rf2 Raa7 Rg2 B1f2 Rg1 Rag7 Rg2 Nf1 Ka6 Nde7 Kb7 Rg5 Kc7 Nd5+ Kd8 Rgg7 Ne5 Rb7 Nc4 Rb6 Rg1 Bh2 Rg7 Bhg3 Rg8 Be7+
1Qb5/qBP2p2/3P1pBr/1rr2q2/KN2pqnk/P1p1r3/P4R2/5Qn1 w - - 0 1 illegal: No proof kernel
rb5K/r1PbN3/2PQp2N/6kr/7b/1BqPqn1P/1b3q2/2QnbRn1 w - - 0 1 illegal: Other
1Q4BR/PKb1bqQq/3p1r1r/n3P3/1P2b2n/3n4/N1q1Pb1k/R4rb1 w - - 0 1 illegal: Other
1Q2r2r/2b1b3/1r2qBR1/q1q2B1b/Q1Pn1P2/1PKP1nq1/2N2n1p/5k1r w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 e5 g5 e6 gxh4 Ra3 fxe6 Ra2 e5 Ra1 e4 b3 c4 Ra2 c3 Rb2 Qc7 Bb5 Qa5 Bf1 Qd8 Ne2 cxb2 c4 d5 Nbc3 d4 Ng1 dxc3 f4 Kf7 g4 Ke6 d3 b1Q g5 Kf5 g6 h5 g7 e5 Qf3 a5 Qd1 c2 Kd2 h3 Bb2 c1Q+ Ke2 Kg4 Ba1 Kg3 Qc2 h2 Bg2 e3 Bf3 h4 Bb7 h3 Qa2 a3 Bf3 e4 Qd2 a2 Bg4 Kg2 Bh5 a4 Bf7 a3 Qd1 Be7 Bd4 a1B Bb2 a2 Be6 Nh6 g8Q+ Ng4 Nf3 Nc6 Qg7 Nd4+ Ke1 e2 Qg8 Qa5+ Bc3 Qe3 Qd8 Nf2 Ne5 Qg3 Kd2 e1N Qg4 Nef3+ Ke3 Qg1 Bb4 Kf1 Qf5 Bb2 Nd7 a1R Nf6 Rb8 Bd6 Rb6 Qb5 Ba3 Bb8 Bad6 Nd5 Bc7 Bf5 Bd7 Qc6 Be8 Nb4 Bh5 Nc2 Ra4 Ba7 Rab4 Qde8 Rb8 Qd6 R4b6 Qa4 Rbe8 Qdb4 Nh4+ Kd2 e3+ Kc3 e2 Bb8 Nhf3 Ba7 Nd2 Bb8 e1Q Ba7 Qe6 Bb8 Bcd8 Be5 N2f3 Bg7 Bc7 Bf6 Qg5 Bh7 Qgc5 Bg6 Ke2 Bf5 Qg3 Rg1 h1R Rg2 h2 Rg1 Qh4 Rg5 Kf1 Rg6 Qa7 Qbb5 Qg3 Qbb4 Qcc6 Qd6 Qc5 Qd8 Qa6 Qb8 Qaa5+
2q1k1q1/N1P1r2R/r1rb1RPp/q1p5/P2PQ3/3B1b1n/n2Qr3/4rr1K w - - 0 1 illegal: No possible last move
1r1qr2k/1qB4b/1b1pq3/qP3P2/n1Pn2n1/1p3Pq1/QR2BNK1/4Q1n1 w - - 0 1 illegal: Other
4rkq1/2nP1Pn1/N2n1r2/1n1P2qB/bp5R/1b6/4pQnP/bK3QbN w - - 0 1 illegal: Other
1QKQn1b1/nP3B1p/6q1/r1n1nP2/3b1bbN/5Npk/b3PrqP/4R3 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a4 bxa4 g5 e5 g6 e4 Bd2 e3 Ra3 fxg6 Rb3 axb3 Bg2 exd2+ Kf1 g5 Bh3 g4 Kg2 Nh6 Kg3 Bb7 Bf1 Bc8 Kg2 Ng8 Kg3 Ke7 Kf4 Ke6 c4 g5+ Ke4 d5+ Kd3 Kf5 f4 a5 b5 g3 b6 Kg4 b7 b2 c5 g2 c6 a4 c7 a3 Nh3 g1Q Bg2 a2 Qc2 a1B Qd1 Bh6 Qc2 d1B Qc1 Nf6 Be4 Nc6 Qc5 Qg2 Nc3 b1B+ Kd2 d3 Ke3 d2 Rg1 Ba2 Qb6 d4+ Kd3 Na7 Qb2 Qe8 Qb6 Bdb3 Nd5 d1N Rh1 Nc3 Qd6 Na4 Qf8 Qg6 Rb1 Ne8 Ne7 Bg8 Nf5 Bc3 Nh4 Nc5+ Kc2 Ba1 Ng1 d3+ Kd2 Bc3+ Ke3 d2 Ngf3 Kh3 Re1 g4 Bd5 g3 Bf7 Bg4 c8Q Ba1 Qd8 d1N+ Kd2 Nf2 Ke3 Be5 Qfd6 Nfd3 Q6b8 Bd6 Kd4 Ne5 Kc3 Bg7 Kb4 Ned7 Ka5 Bd4 Qdc8 Ne5 Kb6 Nb5 Qd8 Ra5 Rf1 Na7 Re1 Ra3 Nd2 Rf3 f5 Rf2 Ndf3 Be7+ Qdd6 Bg5 Qd8 Bf4 Qb8 Ng7 Kc7 Ne8+ Kd8 Nac6+ Kc8 Nf6 Be8 Bgc4 Kc7 Rf8 Qc8 Bg8 Bf7 Re8 Qcd7 Ra8 Qd8 Ra5 Kc8 Ne8 Qb8 Na7+
3bQbbr/q5Nq/Pq1nR1n1/np1K4/1r1P4/2PbR2P/Q1p3B1/1nk5 w - - 0 1 legal: proof: f4 a5 g4 e5 b4 axb4 g5 exf4 g6 c5 Bg2 hxg6 Bh3 g5 Bf1 g4 Bg2 d5 Bh3 c4 Bb2 c3 Bf1 cxb2 c3 d4 Na3 d3 Nc2 dxc2 Kf2 Ke7 e4 Kf6 a4 Ke5 h3 b1N a5 f5 d3 g5 a6 b3 Qf3 g3+ Ke2 b2 Rh2 g4 Ra4 g2 Ra3 g3 Rh1 Nd2 Ra1 b1N Ra4 Nc4 Qh5 f3+ Ke1 Kf4 e5 Ke3 e6 f4 e7 Nd6 e8Q+ Ne7 Qhb5 Nc6 Qd7 Rb8 Qg4 Qb6 Ra1 Na5 Qa4 Be6 Qh4 Bg8 Qb4 Ng6 Ne2 g1B Qc4 g2 Qd8 Bh2 Qa2 g1Q Nd4 Qa7 Qa3 Nd2 Qh4 Nc8 Qc1 Nge7 Qa3 b6 Rd1 Nb1 Nc6 Qg6 d4 Qh7 Rg1 Ng6 Bg2 f2+ Kf1 Rb7 Re1+ Kd2 Qd8 Bg3 Re5 Bh4 Qa2 Kc1 Ke2+ f1B+ Kf3 Bhe7 Ke4 f3 Qd7 f2 Qe8 Bd8 Ne7 Rb8 Nf5 Rb7 Bh1 Rb8 Rg3 Bfc4 Qa1 f1Q Ng7 Qf6 Bg2 Rb7 Qa2 Bd3+ Ke3 Qc6 Re6 Nd6 Rf3 b5 Rg3 Qcb6 Kf3 Rc7 Ke3 Nh4 Kf4 Rc8 Ke5 Ng6+ Kd5 Rc4 Re3 Rb4
r2b3Q/P3pPpn/n2kb1qN/4q2Q/1Pn2q2/1BPn4/Rrp5/K5rR w - - 0 1 illegal: Other
2n4B/B2bP3/rn2np2/2N1P1Q1/pQ1P2pR/2p1r2p/6Pq/2Krkbb1 w - - 0 1 illegal: Other
6r1/1nr3qr/P1P1r2k/1b3B1r/1N2P1np/1B1b2RB/P1rK4/q1N1n3 w - - 0 1 illegal: No proof kernel
1r1B1Nk1/1q2pb2/B2r3n/6P1/N1PP4/KbnPN3/qn2q2R/2q1n1b1 w - - 0 1 legal: proof: b4 d5 h4 g5 a4 gxh4 b5 d4 b6 axb6 a5 bxa5 e3 a4 exd4 a3 Qg4 c5 Qe4 f5 Ra2 fxe4 Rb2 Bg4 Rb5 Bc8 Rb4 cxb4 Kd1 Kf7 f4 h5 g4 b5 f5 e3 f6 a2 c3 a1Q Kc2 e2 Kb3 e1N g5 h3 Be2 h2 Bf1 h4 Be2 h3 Bd3 Rh6 Bf5 Na6 Bh7 Rb8 Na3 Bg7 Nc4 Be6 Bb2 Qc1 Ba3 Nc5+ Ka2 Na4 Bb2 b3+ Ka3 Qd7 Bf5 Qb7 Ne2 Qa6 Rf1 h1B Bg4 h2 Ng1 Bhd5 Bf3 h1Q Bd1 Qh2 Be2 Qb7 Rf3 Rg6 Rg3 Nh6 Rg2 Kg8 Bd3 Qe5 Rh2 Qe4 Ne2 Qe5 Ng3 Qe2 Nb6 Bc4 Nf5 Bed5 Kb4 Bh8 Ba1 b2 Ka3 b1N+ Kb4 Kf8 f7 Rd6 Bb2 Be5 Rh4 Bh2 Ne3 Bg1 Rh2 Kg7 f8N Bf7 Ba3 Kg8 Bb2 Bce6 Bc4 Bd5 d3 Bde6 Kb3 b4 Ba3 Nb2 Na4 Nd1 Nb2 Bd5 Ka4 b3 Bb4 Bde6 Ba6 Bc4 Ba5 Bce6 Nbc4 b2 Nb6 Bd5 Kb4 Bb3 c4 Nbc3 Ka3 b1Q+ Kb4 Qcc2 Ka3 Nb2 Na4 Qcc1 Bd8 Qa2#
B5nB/brb1kr1b/7n/r3P3/1pnN1N1P/R1NP2P1/2pn4/q2K2n1 w - - 0 1 illegal: No possible last move
1q4rr/1b1NPPRr/b3P2q/B1N2q2/p1B2kP1/Knb2b2/2N4p/q7 w - - 0 1 legal: proof: e4 b5 a4 bxa4 c4 f5 h4 g5 d4 gxh4 e5 d6 Qe2 Nc6 Qe4 fxe4 b4 Nb8 Ra2 Nc6 Rd2 d5 e6 Ne5 dxe5 dxc4 Rd6 exd6 Kd1 Ke7 Kc2 c5 Kb2 h5 f4 a5 g4 d5 b5 e3 f5 c3+ Ka2 h3 b6 c2 b7 d4 b8N a3 Kb3 e2 Nc3 e1Q Ba6 h4 Bb7 a4+ Ka2 h2 Bg2 h3 Bf3 c4 Bb2 c1R Bd1 d3 Bb3 d2 Nd7 d1B Nc5 Bg7 Nge2 Qf2 Rf1 h1B Nb7 h2 Ng3 Nh6 Nb5 c3 Nd4 c2 Bd5 Bdf3 Nd6 Ba6 Bc3 Qb8 Nge4 Rd1 Ba5 c1Q+ Ne2 Bf6 Bb3 Rd5 Nc4 Rd7 Nb6 Qg5 Ka1 a2 Kb2 Qfe3 Ka3 a1Q+ Kb4 Qec1 Nc5 Bfb7 Rd1 Bhf3 Nd4 Qc7 Nc2 Rag8 Bc4 Qb8 Rd5 Nf7 Rd2 Nd6 Rd1 Ne4 Rd4 Bg7 f6+ Ke8 Rd2 Qf5 Rd1 Re7 Rd7 Qh6 Rc7 Rf7 e7 Nd2 Rc6 Nb3 Nbd7 Bf8 Nb6 Rfh7 Nbd7 Bg7 Re6 Kf7 Rd6+ Kg6 f7+ Kg5 Rg6+ Kf4 e6 Qb1 Ka3 Bc3 Rg7 Qa1+
2r2r1B/3bpkPP/p2n2p1/3qq2P/b2N4/nBB5/r1p4P/2N1Q1Kr w - - 0 1 illegal: Other
N2R4/1P4p1/5pnP/1b3kqp/n1P4B/q2KB2n/R2P3p/2q1Rrrq w - - 0 1 illegal: No proof kernel
2Bkr3/rPb3q1/1b1b2p1/b1RP3n/R3Qqr1/B1q1PPB1/1nb5/2K3n1 w - - 0 1 legal: proof: c4 d5 d4 dxc4 g4 f5 a4 e5 e3 b5 d5 bxa4 g5 f4 Nc3 f3 Nce2 fxe2 Kd2 h6 Nf3 hxg5 Nd4 exd4 Bg2 g4 Bh3 Nh6 Bf1 Ng8 b4 e1B+ Kc2 c5 h4 a5 h5 g6 f3 g3 b5 d3+ Kb2 a3+ Kb1 a2+ Kb2 c3+ Ka3 d2 h6 c4+ Ka4 c2 h7 c3 Kb3 a4+ Kc4 g2 Kd3 g1B b6 a3 b7 Qf6 Rb1 a1B Rb2 a2 Bg2 Bf5+ Ke2 Bh2 Rb3 Nc6 Bh3 Kd8 Rb5 Bc7 Ba3 c1Q Bd6 c2 Rg1 Nd4+ Kf1 Ne2 Bg4 Ra7 Be5 Bd4 Bg3 a1Q Rb3 Bdb6 Bf4 Bfd6 Rb5 Qab2 Rg2 Ng1 Rc5 Qg5 Rh2 Qg7 Rh4 Nf6 Qe2 d1R Bg3 Re8 Qc4 Rd4 Qd3 Be4 Bc8 Bea5+ Kf2 Nh5 h8B Q7h6 Bhe5 Qg7 Rf4 Ra4 Bb2 Qd2+ Kf1 c1N Ba3 Qdc3 Qd4 Nd3 Rg4 Nh3 Ke2 Ng1+ Kd1 Q5f6 Qb4 Qff8 Qb1 Rb4 Qc2 Nb2+ Kc1 Bf5 Rg5 Rh4 Rg4 Qff7 Rb4 Rg4 Ra4 Bd3 Rcc4 Qf4 Rc5 Qcb4 Qc4 Bc2 Qe4 Qbc3
1b6/bNb1P1rN/rbk3n1/2B3R1/2nr4/KpPP3R/2b2Pb1/1q1qbR2 w - - 0 1 illegal: No proof kernel
1n6/r3P2P/Nqb2nR1/1Rn1N3/1n4P1/b1R1PQ2/n1r1nrpq/K1kn4 w - - 0 1 illegal: Other
4q2R/1B2Bn2/Nqbnrn1N/P3b2n/r2PP2n/k1P3r1/1q4p1/1K4nB w - - 0 1 illegal: No possible last move, all moves rejected
2Kb4/kq1R1P2/1p2R1N1/2p1PBR1/2P1nnq1/2bb1b1P/2r1b1rq/1n2B3 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 g5 h5 g6 h4 Na3 bxa3 Qd2 fxg6 Qh6 g5 Qd6 g4 Qg3 hxg3 Kd2 g5 Kd3 c5 Ke4 d5+ Ke5 Kd7 c4 Kc7 f4 Kb6 e4 d3 h3 d4 f5 a2 a5+ Ka7 f6 g2 a6 g3 f7 b6 Bf4 d2 Rh2 d1B Be3 d3 Ne2 g1Q Rg2 d2 Rc1 a1B+ Nd4 g4 Re2 g2 Rf2 g3 Rc2 Ne7 Kf6 Bc3 e5 Nd7+ Ke6 Bf3 Rc1 d1B Rb1 Rg8 Bf4 Bde2 Rb2 Qh2 Nc2 g1Q Ne3 g2 Rb1 Ng6 Rd1 Be7 Bg3 Nf6+ Rd7+ Bcb7 Nf5 Ne4 Nh4 Nf4+ Kf5 Bd3 Ng6 Bfe2 Rf3 Qd4 Be1 g1N Rg3 Nf3 Rg5 Nfd2 Bg2 Qc8 Bf3 Nb1 Bg4 Ng2 Ke6 Bd8 Bf5 Qc6+ Rd6 Qcd5+ Kd7 Rg7 Bg4 Nf4 Bf5 Be7 Kc7 Qdg1 Rc6 Qg4 Re6 Rag8 Nf8 Bc6 Kc8 Bd8 Ng6 Ba4 Bg3 Bad1 Bh4 Bf3 Be1 B1e2 Nh4 Qgg3 Rgg6 Bf1 Ng2 Ka8 a7 Qg5 Nh4 Qh5 Rgf6 Rg3 Rg6 Rg1 Bg3 B1e2 Rg7 Rd1 Be1 Rd2 Rg1 Rg4 Ng6 Rc2 Rg2 Rh4 Rg5 Rg4 Rd6 Rg2 Re6 Nd6+ Kd7 Kb7 a8R Qg4 Rc8 Ka6 Rc7 Ne4+ Kc8 Qhg3 Rd7 Qh2 Rdd6 Ka7 Rd7+ Qb7+
4b3/2r1q2k/rRPRRb1P/pq1q1P2/K7/3P1n2/N2p2n1/b1rn1NQr w - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 e5 b5 d3 bxa4 e6 c4 Bg2 c3 Bf1 fxe6 Ke2 e5 Ke1 e4 Bg2 e3 Bd2 cxd2+ Kf1 Rh6 c4 Rh8 c5 d6 Bb7 d5 Ba6 Rh5 Bc4 dxc4 Qe1 Rh7 Qd1 Rh8 Ke2 Kf7 h4 Kg6 b4 e5 f4 a5 b5 e4 b6 g3 b7 c3 c6 a3 Qc2 g2 Kd1 a2 Rh3 Bd7 Qb3 e2+ Kc2 e1Q f5+ Kh7 h5 g5 h6 g4 Rh2 g3 Rh1 e3 Qe6 e2 Kb3 c2 Qe4 Bg7 Nc3 Ne7 Qd5 Ra6 Nd1 Bf6 Qd4 Nd5 Qc3 Ne3 Nh3 g1Q Nb2 g2 Rb1 a1B Ka4 Qg8 Nc4 Qd5 Qa3 Rc8 Nf4 Be8 Rb6 Nd7 b8R Ne5 Qc5 Rc7 Rd8 Nf3 Rd6 Qgf1 Qd4 g1R Rh2 Qb1 Rh4 e1N Ne2 c1R Nc3 Nd1 Ne3 Qf2 Nf1 Ng2 Na2 Qe2 Re4 Rh1 Qg1 Qe3 Rf4 Qee5 Re4 Qe7 Ree6 Qbb5+
2N5/b1nP3P/B3bk2/2brbb2/p4q2/PbN3n1/rqQp1P1K/1B1b2B1 w - - 0 1 illegal: No proof kernel
R1bK2b1/5qbR/1p4r1/PpbPPNb1/2R3r1/n1nrrPqB/1N2k3/8 w - - 0 1 legal: proof: c4 d5 h4 dxc4 e4 g5 b4 gxh4 d4 f5 d5 e5 b5 a6 Nc3 axb5 Nb1 f4 Qd4 exd4 Be3 fxe3 Ke2 Kf7 Kf3 Kf6 Kf4 h5 a4 c5 g4 b6 a5 c3 Bh3 d3 Rh2 e2 Bg2 e1R Bf1 d2 Bc4 d1R Ra4 c2 Ne2 c1B+ Nd2 h3 Nd4 h4 Rb4 Qc7+ Kf3 Ke5 g5 Nc6 g6 Qf7+ Nf5 Bb2 Kg4 Nf6+ Kg5 Nd4 g7 Re3 g8R Rh6 Ra4 Nc2 Ba2 c4 Ne7 Kd4 Rh8 Kd3 Nc6 c3 Nb3 Na3 Na1 c2 Rg2 c1B Nd8 h2 Nc6 h1Q Nb4+ Ke2 Nac2 h3 Rh7 h2 Bb1 Bc5 Nd3 Qg1 Rc4 h1B Rg4 Be5 Nb2 Rdd3 f3 Bg2 Rh4 Bgh3+ Rg4 Qg3 Nd4+ Kf2 Nf5 Ke2 Bc2 Ra7 Bb1 Rc7 Bc2 Rc6 Bb1 Rh4 Bc2 Bed6 e5 Bf8 Bb1 Bg7 Bc2 Qg8 Kg6 Be6 Bb1 Ne4 Rg5 Nc3 Rgg4 Bgf8+ Kf6 Bd2 Rgg7 Rg4 Ra7 Rd6 Ra6 Bg7+ Ke7 Bf7 Ra8 Rdg6+ Kd7 Qf8 Bc2 Bg8 Kc7 Qf7+ Kd8 R4g5 Nh4 Bc8 Nf5 Rg4 Bb1 Rdd4 Bd3+ Kf2 Bf1 Rdd3 Bh3 Ke2 Ra4 Ree4 Rd4 Bf4 Ra4 Ree3 Rc4 Bg5+
qq4r1/1qn1pKb1/6b1/p1qRPPR1/Pr2nB1k/Bbbn4/2N2P2/5R2 w - - 0 1 illegal: Other
7q/pqR1r1n1/3P1k2/3P1bb1/R3bn1B/pNP1K1NP/2Rr4/q1q3rr w - - 0 1 illegal: Other
2B1nK1k/P7/1P1R1R1p/nr1bP1pr/bnN1q3/1N3bbq/p1P1R3/1n6 w - - 0 1 illegal: No proof kernel
b1n2B2/p1N3pR/5r2/1ppR3P/2N1bq1r/1Pn3bK/2kPq2P/3Rnn2 w - - 0 1 illegal: Other
3Kb3/1qq1Pb2/np1b2p1/1p1qRNBp/r2P3R/1n2P3/2PNp1R1/4k2r w - - 0 1 illegal: Other
nnqr1RB1/2Pn1Q1Q/1b1b1B2/1q2nK2/1b5P/krP3b1/1R1nP1b1/5q2 w - - 0 1 illegal: Other
1q2Qnnk/2nB1Kn1/2P2B2/PnP3qn/3r2n1/2Pr3b/1Q4R1/R1q1b1n1 w - - 0 1 illegal: Other
3q1n1N/2q1R1Qq/5b2/P4r1k/pNnqK3/b3R1Pb/1P2Pq1Q/2r2q1n w - - 0 1 illegal: No proof kernel
5rRq/2N4Q/2bqPn1r/1K2R1qq/1P1p1bP1/3nP1r1/1qpk1N2/1q3Q2 w - - 0 1 illegal: Other
q1q2R1n/n3QP1P/1Np1b2n/NPK2nQ1/n2pb3/P4r1R/r3b3/2b1k3 w - - 0 1 legal: proof: c4 f5 g4 h5 e4 hxg4 d4 fxe4 b4 c6 Bd2 a6 b5 a5 Bb4 axb4 d5 Ra6 c5 Ra3 Bc4 cxd5 c6 d4 c7 Ra4 Bd5 Ra8 Bc6 bxc6 Kd2 Kf7 h4 Kg6 f4 Kf5 h5 g5 h6 d5 h7 e5 Rh3 b3 Rh1 b2 Rh2 d3 Ke3 d4+ Kd2 e3+ Ke1 Ke4 f5 e2 Kf2 e1N f6 d2 Qc2+ Nd3+ Ke2 d1B+ Kd2 g3 Nf3 g4 Qc4 g2 Qc2 g1Q Ne1 g3 Na3 b1B Rh6 g2 Rg6 Bh6+ Rg5 Nd7 Qb3 N3c5 Nc4 Na4 Nc2 Be2 Ne1 Ndb6 Nd3 Kf3 Qc2 e4 Ncb2 Be6 Qc5 Nc8 Nc1 Kf2 Nc4 Na7 Qb6 Qc8 Qc5 Qf1 Nb3 g1N Qe5 Nh3 Qf5+ Nf4 Qd5 Ng6 Qc5 Qg2 Qe7 e3+ Kc1 Kf1 Rg3 Ke1 Nb6 Be4 Rh3 Bg5 Na5 Nh6 Rb1 Rf8 Rb3 Nh8 f7 Rg8 Ra3 Bf4 Qg5 Qh1 Qe7 Rg3 Qg5 Rf3 Qe7 Nc3 Kb2 Qg1 Ra4 Qgg8 Ka3 Qgd8 Kb4 Qf8 Ra3 Na4 Nb7 B2d3 Na5 e2 Rg3 Bc1 Rg8 Kd1 Rb3 e1N Rc3 Qfe8 Rf8 Ng2 Rb3 Be2 a3 Ke1 Rc3 Nh4 Qg5 N4f5 Rd3 Rf2 Rh3 Rf3 Qe7 Rb8 Qg5 Rb7 Qe7 Qa8 c8Q Rb8 Qcd7 Qc8 Qg5 Rb7 Qde7 Rd7 Qg8 Rd5 Qgg5 Rc5 Qd7 Rc2 Qde7 Nc3 Kc5 Rd2 Qd8 Ra2 Qde7 Na4+
8/4Kr2/q2p2qr/2q1Pr2/1kpb1n1B/N3PQP1/2PNBbbr/3n1Q1q w - - 0 1 illegal: Other
2rb4/bQ1rB1k1/q3b1P1/p1qP3p/PN1p1B2/5KN1/P1n4r/1rQn2b1 w - - 0 1 illegal: Other
7b/1nQP4/3Q4/p1rr1pp1/R1nB1P1n/1K2Pbk1/1n3nP1/1N1Qnr1q w - - 1 2 legal: proof: f4 d5 d4 g5 b4 b5 a4 bxa4 c4 dxc4 d5 e6 e3 e5 Be2 h6 Nd2 h5 Bg4 hxg4 Ndf3 gxf3 Ra3 Bb7 Rd3 Bc8 Rd4 exd4 Kd2 Kd7 Kc2 a5 h4 c5 h5 c3 h6 f2 h7 f1R b5 a3 d6 Ke6 b6 Kf5 b7 c4 Qh5 d3+ Kb1 d2 Ka2 d1N Nh3 c2 Qh4 c3 Bb2 c1N+ Kb1 c2+ Ka1 a2 Bc3 Nf2 Kb2 a1N Bg7 Nab3 Bd4 Nh6 Rh2 Nd2 Rh1 Bg7 Rg1 Na6 b8Q Nc5 Qb4 Nc4+ Kc3 Nb7 Qa4 Ncd3 Qh5 c1N Qc6 Ndb2 Qc7 Ncd3 Qd1 Ne1 Qb1+ Kg4 Rh1 Nf5 Ng1 Kg3 Kb3 Nh4 Nf3 Bg4 Nd2 f5 Qd1 Rc8 Nb1 Bf3 d7 Re8 h8Q Re5 Rg1 Rd5 Qh6 Qh8 Qhd6 Qh6 Rh1 Bh8 Qd8 Rcc5 Nd2 Nc2 Qe2 Ng6 Q8c7 Re1 Rg1 Qh1 Qd3 Re2 Ra1 Nh4 Ra4 Re1 Nb1 Rf1 Qd1 Ne1
K3b1q1/R5PQ/pbQrp1pp/8/B1rB2r1/1PPP2r1/8/1knn2nB w - - 0 1 legal: proof: Nf3 b5 Ng1 b4 Na3 b3 axb3 Bb7 Nb1 Bc8 Ra4 c5 Ra1 c4 Ra5 c3 Ra1 cxb2 g4 g5 h4 gxh4 g5 Nf6 g6 Ba6 g7 Bc8 Ra6 Ng8 d3 e5 Rg6 fxg6 Nd2 e4 Bh3 e3 Kf1 exd2 Kg2 Qg5+ Kh2 Bb7 Bf1 Bc8 Kh3 Qa5 Kg2 Qd8 Kf3 Qc7 e4 Qh2 e5 Qh3+ Ke2 Ba3 e6 Bf8 e7 Qg2 Nh3 Qd5 Nf4 Qd6 Ne6 dxe6 Rh2 Qd8 Rh1 Kd7 Kf3 Kd6 Ke4 Kc5 e8B Kb4 f4 Ka3 c3 Ka2 f5 b1R f6 h3 f7 h6 Ba3 a6 Be2 h2 Be7 Bd7 Bd6 Ne7 Qc1 d1N Rg1 h1R Be5 Nf5 Bf1 Bc5 f8Q Rh3 Rh1 Nc6 Qg8 Rc8 Qh7 Ncd4 Be2 Nh4 Rf1 Bb6 Bf3 Rg3 Bh1 Ne2 Rf7 Nf3 Bd4 Nfg1 Ke5 Rc4 Kd6 Rf8 Qe3 Nc1 Qf3 Rb2 Qg2 Kb1 Qc6 Rbg2 Re7 Rg4 Rf7 R2g3 Re7 Ba7 Rf7 Qa8 Kc7 Qd8+ Kb7 Bb6 Re7 Rf5 Rf7 Rd5 Re7 Rd6 Rf7 Qe7 Ka8 Qf8 Re7 Qg8 Rf7 Bc8 Ra7 Bd7 Qc5 Bc8 Ba4 Bd7+ Qc8 Be8 Qd7 Rg2 Qc6 R2g3
1b3B2/2p5/K1r2b2/pBPr1nbb/PR1QQ3/1nqr3P/3bbPq1/4B2k w - - 0 2 legal: proof: g4 e5 d4 exd4 a4 b5 g5 f5 g6 f4 Nh3 b4 Na3 bxa3 Ng5 hxg6 Ne4 g5 Ng3 fxg3 Bd2 g4 Be3 Rh7 Bc1 Rh8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 c4 a5 b4 d5 e3 g5 h3 a2 Bb2 g2 Be2 g1Q Bc3 g3 Bg4 d3 Be6 g4 Rh2 g2 Be5 d4 Bd7 d2 Qf1 Kf3 e4 d1B Rb1 a1B Be8 d3 Bf4 g3 e5 d2 e6 Ra6 e7 Bf6 Rh1 Qd4 Qe1 Be2 Bd7 d1R e8Q Rh5+ Bf5 Nc6 Be5 Qc3 Bd7 Nh6 Qd2 Nf5 Qb2 Rd3 Be6 Bc5 Qa2 Ba7 Qg6 Bb8 Qa1 Bd7 Bd6 Be8 Bf8 Qf1 Qb2 g1B Bd7 Kg2 Qg4 Bh2 Qe4+ Rf3 Qd2 Rg5 Qdd4 Bh5 Kc5 Rb6 b5 Ra6 b6 Qg1 Qe7 Rd3 b7 Qf1 Rb4 Rb6 Qde3 Ncd4 Bb5 Rd6 Qd8 Nf3 Qd4 Nd2 Qe8 Qg1 Bd7 Nb3+ Kb5 Rg6 Qee3 Rd5+ Ka6 Bg5+ Bc6 Rd6 Qf3+ Kf1 Qfe4 g2 Bh6 Bf6 Bd2 Bf4 Be1 B6g5 Rb6 Bd2 Bb5 Ba7 b8B Bf6 Rh2 Qh1 Rc6 g1B Rg2 Bh2 Rg8 Qg2 Rg4 Kg1 Rf4 Kh1 Rh4 Bc5 Ba7 Bhf4 Bb6 B4g5 Rg4 Ba3 Bc5 Bac1 Rf4 Be3 Rg4 Bcd2 Ba3 Re6 Bf8 Red6 Qde5 Bb6 c5 Ba7 Q5d4 Bb8 Qc4 Bdf4 Qe5 Bd2 Rd4 Nh6 Qe4 Nf5 Qb4 Qb2 Qc3 Qc2 Rb4 Qb2 Qce5 Qc3 Q5d4 Rxc6+
1bK5/1P3n1p/1B4P1/P4QNn/N1pn1b2/2Pb2q1/rbQr3k/Q2r1qr1 w - - 0 1 legal: proof: b4 f5 g4 d5 g5 a5 Bh3 a4 Bg4 fxg4 a3 Nc6 Ra2 Bd7 Rb2 Bc8 Rb3 axb3 a4 Nb8 e4 b5 a5 dxe4 h4 Ra6 Nh3 Bb7 Ba3 Ba8 Qe2 Qd6 Nc3 Nh6 Kd1 Qg6 Re1 Qe6 Ng1 Bb7 Qf1 Rc6 Ke2 Qd5 Ra1 Rg6 Nb1 Ng8 Qd1 Bc8 Bc1 Ra6 Ke1 Ra8 Ra4 Qd8 Ne2 bxa4 Ng1 g6 h5 gxh5 Ke2 Kd7 Ke3 Ke6 Kf4 c5 d4 a3 f3 h4 b5 b2 g6 c4 c3 h3 b6 e3 b7 g3 Kg5 g2 d5+ Ke5 d6 e2 d7 e1B Qc2 h2 Nd2 b1Q Bb2 h1N Kg4 a2 Qc1 a1B Nb3 Bd2 Nc5 Bf4 Ba3 Ng3 Qb2 Nc6 Na6 Nh5 Qf2 Qc7 Nh3 g1R+ Qg2 Nh6+ Kh4 Nf7 Kg4 Bb2 Ng5 Qf1 Ne6 Nd4 d8Q B8h6 Qe8 Rf8 Nc5 Ra6 Qa4 Rd6 Qc2 Bh2 Na4 B6f4 Bc5 Bd7 Qb3 Bc6 Bb6 Be4 Ng5 Bd3 Qd1 e6 Kh4 Kf5 Qge2 e5 Qec2 e4 Qe1 e3 Qa1 Qd1 Kh3 e2 Kh4 e1R Kh3 Bd2 f4 Rfd8 Kh4 Re2 Kh3 Qf1+ Kh4 Kf6 f5 Ke5 f6 Bg3+ Kg4 Bdf4 Nh3 Ke4 Ng5+ Ke3 Qcd1 Kf2 Qc2 Nh8 f7 Kg2 f8Q Kh2 Qf6 Nf7 Qf5 Rd2 Qe1 Re6 Qa1 Ree2 Qe4 Nb3 Kf5 Qb8 Ke6 Nd4+ Ke7 Rd1 Qe6 Red2 Qg4 Re8+ Kd7 Ree2 Qe6 Qe5 Qf5 Qe3 Ne6 Bb8 Ng5 Bgf4 Kc8 Qg3 Qa2 Ra1 Qa3 Ree1 Qa2 Red1 Qab1 Ra3 Qa1 Ra2
N1b1Q3/2rq2nn/P3r3/2Qrbn1B/ppq1Np1P/1P1P4/1kb3N1/2q4K w - - 0 1 illegal: No proof kernel
4N1q1/1Q1q3Q/1pb1p3/3Pn2B/1KqrP1p1/3k2r1/Pb1P2Qn/1rn1r1B1 w - - 0 1 illegal: Other
n3B3/n1p1b1n1/bQ1Pb1rk/K1bn1pN1/P1P1pP2/5B2/Q6r/q2B2q1 w - - 1 2 legal: proof: b4 d5 a4 a5 e4 axb4 e5 Ra5 Ra2 Ra6 Rb2 Ra8 h4 e6 d4 Qd7 Rb3 Ra6 Re3 Ra7 Re4 dxe4 d5 Ra8 d6 Qd8 Rh3 Nd7 Rd3 Nb8 Rd5 exd5 f3 g5 Bf4 g4 Be3 g3 Kd2 h6 Nc3 Ne7 Bf2 gxf2 g4 Ra7 Nh3 Ra8 Ng5 Ng8 Ne2 Bd7 Ng1 Bc8 Nh7 h5 g5 Qe7 Nf6+ Kd8 Ng4 hxg4 Qb1 Ke8 Qd1 Qd8 c3 b5 e6 f5 f4 b3 h5 b2 g6 b1N+ Kc2 b4 Kb3 g3 g7 g2 e7 Kf7 h6 Kg6 h7 d4 e8B+ Kh6 Bc4 f1B Bef7 d3 Bg6 d2 Bd5 Be6 Bh5 Nd7 Nf3 g1B Qc2 d1Q Ng5 Qf6 Bc4 Na3 Bf3 Be7 Bg4 Nb5 Nf3 Bc5 Ne5 Na7 Bf3 Nb6 Bd5 Ba6 c4 Qg1 Qa2 Rf8 Bc6 Na8 Be8 Rf7 Bd1 Rf8 Nf3 Qa1 Bh5 Nf6 g8B Ne8 Bgf7 Ng7 Be8 Rf6 Ng5 Rg6 Bhe2 Qh2 Bf3 Qg1 Kc2 b3+ Kd2 b2 Kc3 Bf2 Kb4 b1N Ka5 Nc3 Kb4 Nh5 Ka5 Nd5 Bf7 Rhg8 Be8 R8g7 h8Q+ Rh7 Qhb2 Bc5 Qbb1 Ng7 Qb6 Rh8 Bd7 Rb8 Be8 Rb7 Qc6 Rb2 Qb6 Rh2
3Q3Q/pr1pq3/2p3K1/1P1q1P2/1nPP2NB/bbp4N/Q3r3/1n1qrb1k w - - 0 2 legal: proof: g4 e5 e4 b5 b4 g5 h4 gxh4 a4 bxa4 c4 Qf6 Rh3 Qg5 Bg2 Qd8 Rd3 f6 Rd4 exd4 e5 f5 Be4 fxe4 Ra3 Be7 Rh3 Bf8 Rc3 dxc3 Ke2 Ke7 Ke3 Ke6 Kf4 h5 d4 h3 g5 c6 g6 a3 g7 h2 f3 h1B Qf1 a2 Bb2 a1Q Qe1 h4 Na3 e3 Qg3 e2 Nb5 e1R Bc1 h3 Qh2 Ba6 Bb2 Qe7 Nd6 Bg2 Ne2 Bb5 Qg3 h2 Ne8 h1Q Qf2 Bf1 Ba3 Nf6 Kg5 Qd1 f4 Na6 Ng1 Ne4+ Kg6 Rh2 Qa2 Nd2 Bc1 Qd5 Nf6 Rhe2 Ng4 Rb8 Nh3 Ba4 b5 Nb1 Be3 Rb7 Bf2 Nb4 Bh4 Bb3 g8Q+ Qf7+ Kg5 Bc5 Qh8 Qe7+ Kh6 Kf5 e6 Ke4 f5 Kf3 Kg6 Kg2 Qd8 Qf8 e7 Kh1 e8Q Qe7 Qg8 Nd3 Qge8 Ba3 Qh8 Nb4
b2qrN1r/q2bPnk1/5p1p/N7/1B1b1P1P/2Q1P1Kq/3NprN1/4n2b w - - 0 2 illegal: Other
1r3brq/2P2R2/N2b1np1/1R1PR1P1/nbn4p/3b2qR/3P1k1n/Nq1K4 w - - 0 1 illegal: Other
2q1QrR1/3PQQ2/1P3pb1/2n3P1/R1Kbnq1R/p7/2b1P1k1/qb5q w - - 0 1 legal: proof: a4 d5 b3 d4 Bb2 b5 c4 dxc3 axb5 cxb2 d4 a5 f4 e6 d5 Qe7 g3 Qf6 d6 Qd8 Bg2 Ra7 Bd5 exd5 Nd2 g5 Nf1 Ra6 Ra4 Rc6 Ra1 Rc4 Kd2 Re4 Ke1 Re5 fxe5 Bb7 Qb1 Ba6 Qd1 Bc8 g4 Qf6 Ne3 Qd8 Nh3 h5 Nf4 gxf4 g5 Bb7 Ng4 hxg4 Kf1 Ba6 Ke1 Bc8 Kd2 Kd7 Kd3 Ke6 h4 Kf5 b4 b1B+ Qc2 c5 h5 d4 b6 c4+ Kd2+ d3 Kc3 f3 b7 Kf4 h6 Kg3 h7 d2 e6 d1B e7 f2 e8R f1Q b5 a4 b6 a3 Qf5 Na6 b8Q Bg7+ Qf6 Qf4 Rh6 Nc5 Rh1 Kg2 Qe5 g3 Re7 Bdc2 Qf6 B8f5 d7 Qc8 Qfe5 Nf6 Rh4 Bg6 Re8 Rf8 h8Q Nfe4+ Kd4 c3 Kc4 Bf6 Qe7 Bd4 Qg7 f6 Qa8 Ba4 Qgf7 c2 Ra2 c1Q+ Rc2 Qh1 Rb2 Bac2 Rb4 Kg1 Ra4 g2 Rd8 Kf1 Qb8 g1Q Qbe5 Kg2 Q5e6 Rh8 Rg8 Qgc1 Qfe8 Qb2 Q6f7 Qa1 Rg7 Rf8 Rg8 Qfb8 Qg7 Qbc7 Qgf7 Qf4
1rb1rq2/QP1N4/rbp4q/nkP2B1q/3P1n1b/2R2RP1/p3P2r/3K3r w - - 0 1 illegal: No possible last move, all moves rejected
1N2k1r1/brPp2Bp/4Prn1/7r/1nP1PqRq/1Q1P4/2p2bq1/1KR2b2 w - - 0 1 illegal: Other
b2QnNq1/5r1b/p1rP4/2k2n2/nbP2pKb/R1P3P1/2p1pPNb/4B3 w - - 0 1 illegal: Other
bb4K1/1Pn1r3/Q1nPR2P/1qp2RNP/1P1pb3/pp4p1/2r5/3bk1bB w - - 0 1 illegal: Other
2n4K/2pP3P/Qrn4P/2kqP1br/rR1N1r2/Rb6/1r1rrPNq/8 w - - 0 1 legal: proof: e4 a5 b4 axb4 d4 e5 g4 h5 gxh5 d5 a4 bxa3 c4 dxc4 d5 Qf6 Bh6 Qd8 Be3 f6 Bd4 exd4 e5 f5 Bg2 Nf6 Bf3 Ng8 Be4 fxe4 Kd2 Kd7 h4 b5 h6 g5 h5 e3+ Ke2 a2 Kf3 b4 Ke4 g4 Kf5 e2 Kg6 e1R d6 Kc6 Nc3 b3 Rh3 g3 Rb1 a1R Qd2 g2 Rh4 b2 Qd1 d3 Qa4+ Kc5 Nd5 c3 Nb4 c2 Nf3 c1R Qa2 g1Q+ Rg4 d2 Nh4 d1R Rg3 Qh2 Qa4 Rc2 Kf7 Be6+ Kg6 Ree2 Qd7 Ne7+ Kf6 Rdd2 Re3 R1a4 Qc8 Nbc6 Qa6 Bb3 Ng2 Nc8+ Kg6 Be7 Kg7 Rc4 Nc2 Rf4 Nd4 Rb8 d7 Rb6 Rh3 Bg5 Rg3 Qe8 Rd3 Qe6 h7 Rhf8 h6 R8f5 Kh8 Qd5 Ra1 b1R Ra3 Rbb2 Rg3 Bc2 Rgb3 Bd1 Rb4 Bb3 Qb7 Rh4 Qa8 Rff4 Qa6 Rh5
K3R1n1/PP2p2N/N1Rrb3/1P6/3B1r1r/n3rk2/1bP1qPb1/1rnn3n w - - 0 1 illegal: Other
b1Bq3N/rQ1rb2K/q7/b1b2P2/1p1N1nP1/4B3/rnPP1r1P/1k1n2b1 w - - 0 1 illegal: No proof kernel
B3k1r1/rbq5/qq2bb2/1p4Pr/1Pnr1r1p/3P1n1B/KPRP4/1NN5 w - - 0 1 illegal: Other
rK5n/1N1pBr2/kn2bq1P/3R4/2p1n2P/p1R1Bq2/2Pb1PnP/3r2q1 w - - 0 1 illegal: Other
Q2Kr3/qP2p1n1/rNq1pRP1/Pk4q1/4Rq1b/5P1b/2P4p/qq2N2n w - - 0 1 illegal: No possible last move, all moves rejected
1Bqb2b1/rr2P2B/2pK2nk/3qPP1P/N1q3rP/4Npp1/p2Q4/5qn1 w - - 0 1 illegal: Other
k3n3/1rqpP3/qP1q1r1r/2nP4/P2K1P2/rNrBq2q/5bB1/B1Q2b2 w - - 0 1 illegal: No possible last move, all moves rejected
1kr1N3/1r4p1/1b4p1/P2P2Pn/Knqr2R1/2BBBP1n/1nb3P1/1n2nq2 w - - 0 1 illegal: Other
5b1q/4rp2/1nP2Q2/3NPrK1/5p1p/1B1rPP2/1k1NpPnr/2nbN1q1 w - - 0 1 illegal: Other
4nR2/Q3rRPp/3pp2p/n1b1P1RB/1Pbn1q2/1Pbn1P2/4q1rk/5K2 w - - 0 1 illegal: Other
6br/Np3Pr1/Pq2Pn1b/k7/r1P2Q2/2rPqQ1b/1KN5/n3Rr1q w - - 0 1 legal: proof: g4 c5 c4 a5 b4 cxb4 a3 h5 gxh5 d5 Nh3 a4 Qb3 axb3 Ng1 d4 d3 e5 a4 e4 Ra2 e3 Rc2 Qc7 Rc3 dxc3 Nd2 Qb6 Nb1 Qd8 Bd2 f5 Bg2 exd2+ Kf1 Nf6 e4 Ng8 e5 Na6 Bd5 Nb8 Be4 fxe4 Ke2 Kd7 Kd1 Kc7 f4 Kb6 h4 g5 h6 c2+ Ke2 d1B+ Kd2 c1R f5 b2 f6 g4 h7 b3 h5 g3 h6 e3+ Ke1 g2 Nf3 e2 Kd2 g1R Rh3 Rg7 Rh4 Nd7 Ne1 Rc3 Re4 Nc5 Na3 b1Q Nb5 b2 Na7 Bh3 e6 Ka5 Nc2 Qb6 f7 Nf6 Re3 e1R Re4 Bh5 Re2 Rf1 Re1 Rhg8 h8Q Bg6 Qh7 Rh8 Qg8 Qa2 h7 Nb3+ Kd1 Na1 Kd2 Bc5 Qb8 b1Q Qf4 Bf8 Qf3 Qa3 Qf4 Qac5 Qf3 Q1b5 Kc1 Qb5c6 Qf4 Qh1 Qf3 Rhg8 h8Q Bgf5 Qh4 Rh8 Qhf2 Bh7 Qd2 Bg8 Qdf4 Qbd6 Kb2 Qe3 Q4e4 Rg2 Qh4 Bh6 Qhf4 Rg7 Nd4 Kb4 a5 Qb6 Nc2+ Ka4+ Nb5 Rc8 a6 Rc5 Nd4 Kb4 Na7 Ra5 Q4e4 Raa3 Qef4 Ra4 Nc2+ Ka5+
r5q1/3p4/P2Q1P1N/3n4/n3k2p/1r2n1n1/bPRPKb1P/qqbr1NQ1 w - - 1 2 illegal: No proof kernel forced: bxDB
2nq1r2/QP1r1Prn/pq1P1p2/5Pr1/2B1b3/2BPp1R1/5bp1/1k1K1nQ1 w - - 0 1 illegal: Other
3Rnrn1/1Rq1PbK1/NPRPp3/rn2P1p1/1b1r4/p3P1k1/n3b1N1/7r w - - 0 1 illegal: Other
n4N1B/5Q2/K1bPbP1k/1n1p3P/PRrq1n1q/1P1pp2P/4n1r1/1q6 w - - 0 1 illegal: No proof kernel
b3b2N/7P/P4n2/PpB3p1/1N1q1nP1/bn3P1r/2pP1K1B/3k1n1b w - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 a5 bxa5 h5 Ba3 h4 Bb2 Na6 Bc1 Nb8 e4 Qd6 a4 Qd4 Ra3 Qd8 Rg3 hxg3 Qb3 cxb3 Kd1 e5 Ba3 b5 Kc1 Ra6 Bc4 Rd6 Bf1 Rd5 exd5 e4 Kb2 e3 Kc3 e2 Bc1 Qd7 Kb2 Qd8 h4 f6 Bg2 f5 Be4 fxe4 Nf3 Rh6 Re1 Rh8 Rd1 exd1B Kc3 Kf7 Kd4 Kg6 Ke3 c5 d6 c4 d7 c3 a6 b2 a5 g2 Nd4 g1N h5+ Kg5 h6 Nh3 Ne2 Nc6 Ng3 Ba3 Nh1 Nf6 Ng3 Bb7 Nh5 Nf4 Ng3 Ba8 Nf1 Nd4 Ng3 Nb3 Nf5 Bf3 Nd6 Bh1 Ne8 c2 Nc3 b1B Ne2 Ba2 Nc7 Kh4 f3 g5 Nc3 Kg3 N3d5 Kg2 Bb2 Kf1 Bd4 Ke1 Ne8 Kd1 Kf2 Qb6 Be3 Qd4 d8B Rh7 Nb4 Rh8 Kf1 Rh7 Bf2 e3 Nd6 e2+ Kg1 e1N Bc7 Rh8 Nf7 Neg2 Be5 Rh7 Nh8 Ne3 Bd6 Nf1 Bb8 N4h5 Bh2 Nf4 Be3 Nc1 Kf2 Bf7 Nd5 Nb3 Nb4 Qe5 Ba7 Be8 Bd4 Rg7 Be3 Qd4 h7 Rg6 Nd3 Rh6 Nb4 Qe4 Bb6 Rh3 Bc5 Qd4+
4b3/3P1q2/qPnnP3/1P4q1/1r1bQ2p/2Q4P/krn1PQ2/2q1RKn1 w - - 0 1 legal: proof: f4 b5 a4 e5 fxe5 g5 b4 a5 g3 Nc6 Ra3 Nf6 Rf3 Nb8 Rf4 gxf4 Ba3 Ng8 axb5 Bd6 b6 Bc5 b5 Bf8 Bb4 axb4 Bg2 b3 Bh3 Ba3 Bf1 Bf8 c4 c5 Bg2 d6 Nc3 Kd7 Na2 Ke8 Nf3 bxa2 Nd4 Nd7 Nc6 Nb8 Nb4 cxb4 c5 d5 Be4 Ra5 Bd3 Ra8 Bc4 dxc4 d4 Kd7 g4 Ke6 h3 Kd5 g5 a1N e6 f5 c6 h5 c7 b3 g6 b2 g7 b1Q Rg1 c3 Rf1 Kc4 d5 f3 d6 f4 Rh1 f2+ Kf1 c2 Qe1 Kb3 Rg1 c1Q Rh1 Nc2 Qd1 Qa1 Rg1 Nf6 g8Q Nc6 Rg6 Ne4 Qh7 Qg5 Rg8 Bg7 Rd8 Ka2 Qe1 Bd7 c8Q Bd4 Qg7 Be8 d7 Nd6 Qe5 h4 Qe4 Ra4 Qb7 Rb4 Rb8 Rg8 Qf5 Rb2 Qg4 Rg6 Kg2 f1Q+ Kh2 f3 Qg1 f2 Rc8 Rf6 Kh1 Rf3 Rc7 Rfb3 Qc3 Rb4 Rc8 Qfe1 Rc7 f1N Qf2 Qcf4 Rc8 Qf7 Rc7 Qec1 Qa8+ Na5 Qe4 Nc6 Rc8 Nd2+ Kh2 Qh6 Kg2 Nf3 Rc7 Ng1 Rc8 Kb1 Ra8 Qcg5+ Kf1 Qa6 Rc8 Ka2 Rc7 Ne7 Rc5 Nc6 Rd5 Bh8 Rd1 Bd4 Re1 Qc1 Qc5 Qhg6 Qc3 Qgg5
1n3N2/2bb2BB/1bb4q/3RN1rk/2BK1Q2/1r1R1r1b/3Rb3/2nb2QQ w - - 0 1 legal: proof: f4 a5 b4 d5 a4 e5 c4 exf4 cxd5 g5 e4 fxe3 h4 b5 axb5 gxh4 Rh2 axb4 Rh3 Qd6 Rh1 Qd8 Ke2 h5 Kd3 c5 g4 f5 g5 Kf7 d6 Kg6 b6 f4 b7 h3 d7 h2 Bh3 c4+ Ke4 e2 d4 e1B d5 c3 d6 h4 Kd4 c2 Kc4 f3 Bf1 f2 Nh3 b3 Na3 b2 Kd5 b1B Ke4 Qf6 d8R Ra5 d7 Bd6 Rf8 Bc7 d8Q Nh6 Q1d2 Nf7 Q8d5 Kh5 g6+ Ne5 g7 Qh6 g8B Bd7 Bb2 c1R+ Kd4 Bd3 Rf3 Be2 Qe3 Rc3 Nc4 Rb3 Ng5 h3 Ra2 Nd3 Bh7 Nc1 Ne5 Rf8 Ne6 Rf7 Rg1 h1B Nf8 h2 Qf4 Bd1 Bc4 f1B Rd3 Bhf3 Rg6 h1B Rd6 Bfg4 Bc3 Bfe2 Rad2 Bge6 Qc6 Be4 Rd5 Bh3 Qh2 Rf3 Qg1 Na6 b8Q Rab5 Qba8 Nb8 Qf6 Rc5 Qf4 Ra5 Rd6 Bec6 Bb2 Bb5 Qae4 Bbc6 Rd5 Rab5 Rc2 Bea5 Rcd2 Rg3 Qeh1 Rg5 Rg3 Rf3 Bc3 Rb3 Ba1 Rf1 Rgd3 Rf3 Ng4 Bc8 Kc5 B8b7 Bg7 Bd7 Kd4 Bbc6 Ne5 Bab6+
N3k3/BBQ3K1/Q3br2/1b4Rq/2pq2r1/2rrq1rq/1bN1R2B/2Q4R w - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 f4 dxc4 h4 e5 h5 exf4 Bb2 Nf6 Bxf6 g6 Bb2 gxh5 Bc1 Nc6 Nh3 Nd4 Ng1 Nc2+ Qxc2 h4 Qd1 Kd7 Kf2 Ke7 Ke1 Ke8 Kf2 h5 Kf3 c5 Ke4 b5 Ke5 f5 g4 c3 e4 b3 d4 h3 d5 f3 d6 f2 a5 b2 a6 h2 a7 h4 g5 b4 g6 c2 g7 h3 g8R b3 Rg6 f4 Nd2 b1Q Bg2 f1B Rg5 f3 Ra2 f2 Nc4 b2 Ne2 Be6 Nb6 Rg8 Bf4 c1R Nd4 Qd3 Nc2 b1R Be3 Rb8 a8Q Rb4 Qa6 Ra8 Bf4 Qe3 Bg3 Qd7 Kf6 Bb5 e5 Rg4 Bb7 Rd8 Na8 c4 Qg1 f1R+ Bf2 Bd5 e6 Bg7+ Kg6 Rg3 e7 Bb2+ Kh7 Qg4 Kh6 Be6 d7+ Kf7 Kh7 Qgd4 Kh6 Rg4 Qg3 Rg7 Qc7 Rg6+ Kh7 Rf6 Bg3 R1f3 Bd6 Rg8 d8B Ke8 Bc5 Rfg3 Ba7 Rh8+ Kg7 Rd1 Qf4 Rd3 Bc7 Rhh6 Qe5 Rff3 Bcb8 Rhf6 Qc7 Rc3 Raa1 Rd3 Rae1 Rc3 Re2 Rd3 Ra1 h1Q Rd1 Qg2 Rh1 h2 Na3 Qd2 Rhe1 Rc3 Nc2 h1Q Rb1 Bc8 Qcb6 Qh5 Rf2 Rfd3 Rh1 Rge3 Bh2 Kd7 Qba5 Qc1 Qa1 Qf3 Re2 Qfh3 Qb1 Reg3 Qba1 Qce3 Qc1 Bc6 e8Q+ Kd6 Qa2 Bb5 Qc6+ Ke7 Qc7+ Ke8 Qa6 Be6
4n1K1/2pnQQB1/Bk5r/N2p3p/1qB2N1R/2Rnrn1r/2Qr2n1/2N5 w - - 0 1 legal: proof: d4 b5 c4 bxc4 h4 a5 b4 e5 e4 g5 Qb3 gxh4 Qd1 a4 f3 a3 f4 exf4 Qc2 Bg7 Qd1 Be5 dxe5 Ba6 Qf3 Bb5 Qh5 Ba4 Qd1 Bb3 axb3 cxb3 Kf2 f5 Kf3 h5 g4 h3 g5 h2 e6 d6 e7 Kd7 e8Q+ Kc8 b5 Kb7 e5 a2 e6 b2 e7 Nf6 b6 Nbd7 g6 Ra3+ Nc3 b1N g7 Qb8 g8B Rh6 Qf7 Ne8 Ba6+ Kc6 b7 Kb6 Qc2 Nd2+ Kg2 f3+ Kh3 f4 Kh4 f2 Kg5 f1N Nce2 f3 Nh3 f2 Nhf4 Nb3 Bb2 Ne3 Rac1 a1R Bg7 Ng2 Kf5 f1N Kg5 Nef6 e8Q Nbc5 Qee7 Nd3 Kf5 Nd2 Ke6 Qf8 b8N Nf3 Nc6 R1a2 Na5 Qb8 Qb1+ Rb3 Rc3 Rd2 Qc2 Qb7 Nc1 Ne8+ Qg6 Qe4+ Kf7 Qb4 Qh7 N7c5 Kf8 Ra3 Bgc4 d5 Kg8 Nd7 Qf5 Rb3 Qff7 Ra3 Re1 h1R Re4 Re1 Nh3 Ree2 Rh4 Re3 Nf4 Ra1 Ncb3 Rh1 Nc1 Rh3
2B1r2Q/1qn2K1B/rN2n1R1/1rB2n2/rb1qQb2/q2R2Q1/N2N2n1/2r4k w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bb2 f4 Ba3 Ra4 Bc1 Ra8 h3 fxg3 Qd2 g5 Qd3 g2 Qd1 g4 Nc3 b6 Qd3 g3 Nb1 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Qc8 Ba3 Qc7 Bc1 Qd8 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 a4 Ke4 c3 h5 e3 d5+ Kb5 f5 c4 h4 c5 d3 g5 b3 g6 d4 Kc4 f4 g7 b5+ Kb4 d2 a5 b2 a6 h3 a7 d3 Qc2 d1N Qe2 h2 Nf3 g1B Kb3 g2 c6 b4 Kc4 b3 c7 d2 c8Q Qe7 Nh4 f3 Qh3 f2 Ra5 Na6 Ra4 Nc7 Ng6 Nh6 g8B Qa3 Qg3 Nf5 Ne5 Bb4 Bh7 Rhe8 Nd3 Ne6 Ra6 Nc3 Rb6 d1R Bd2 Nb5 Nc1 Nbc7 Na2 Re1 Rd6 Rd1 Rd3 Rc1+ Bc3 Re7 Qc2 Ree8 Be2 f1N Bg4 Bf2 Rg1 h1R Bd4 Rh4 Bc5 Bfe1 Bh3 Bec3 Qe2 Be5+ Qc2 Bf4 Nd2+ Ke5 e4 b1R Bg4 b2 Bh3 Rab8 a8N Ra1 Bg4 Rb5 Nb6 b1Q Bh3 Nh2 Bg4 Nf3 Bh3 Ne1 Bg4 Kf6 e5+ Kg5 Qc3 Na6 Kd5 Nac7+ Kc6 Rh6 Kd7 Rg6 Qc4 Rf6 Qe4 Qbb2 Rh1 g1Q Rh3 Ng2 Rh6 Nd8 e6 Qgd4+ Nd5 Rg6 e7 Ra6 Rd6 Nde6 Nb6 Rh8 e8Q Rg8 Qf7 Re8 Qf8 Qbb3 Qh8 Qbd5 Qgf3 Kh4 Qfe3 Qb7 Qg1 Qe3 Rc6 Kg3 Qe1+ Kh2 Qg3+ Kh1 Bh3 Neg7 Rg6 Nge6 Bg4 Nd6 Bf5 Qd4 Bg4 Rb8 Ke7 Nf5+ Kf7 Re8 Bd1 Rab1 Ba4 Rba5 Bd7 Ra4 Bc8 Ba5 Bd7 Rb5 Bc8 Bb4
rbn2qrn/bN3Q1K/1N4B1/1R1q2kN/3Q4/n1rB4/2Bq4/R2r1Rrq w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h6 Qd3 b6 Be3 Bb7 Nb1 Be4 Bg5 f4 Qd1 Bf5 gxf5 hxg5 Kf2 Ke7 e4 Kf6 h4 d5 c4 g4 a4 g5 h5 b5 h6 b3 a5 g3+ Ke1 f2+ Ke2 b4 Kd3 g4 h7 f3 c5 g2 e5+ Kg5 f6 b2 e6 b3 a6 g3 e7 Nh6 e8Q Nf7 c6 Nd7 c7 Bd6 c8B Rg8 h8R Bb8 a7 Nb6 Nd2 b1R Ne2 g1R Nc4 g2 Nd6 b2 Bf5 Rc1 Bg6 b1N Ng3 Nc8 Nb7 Na3 Nh5 Qd6 Rh7 Nh8 f7 Qe6 Be2 f1Q f8N f2 Nd7 Qe1 Qf8 f1Q Qf7 Qe7 Nb6 Qf8 Qd2+ Qf4 Bd1 Qe6 Qe3 Rc6 Bc2 Rc3+ Kd2 d3 Rh6 Rb1 Rf1 g1B Rh7 Qh3 Rg7 Qh1 Rh7 Kg4 Rh6 Qf5 Qd4+ Kg5 Rh7 Bgh2 Ke3 d2+ Bd3 d1Q Rh6 Rc5 Bc2 Qd7 Bgd3 Rc3 Rc6 Bhg3 Rc5 Be1 Rb5 Rc1 Qc5 Qd2+ Kd4 Qdd8 Qd6 Bf2+ Ke5 d4 Bg6 Kh4 Kf5 d3 Qc5 Qdd5+ Kf6 Qe2 Qe3 d2 Qd4+ Bf4 Bgd3 d1R Bg6 Qd2 Bgd3 Rg4 Bg6 Bb8 Bcd3 Qfc5 Kg7 Qf8+ Kh7 Be3 Rf2 Rg1 Rf1 Rd1 Bc2 Bbf4 Bgd3 Rg8 Bg6 Rb8 a8B Kg5 Nd8 Bc7 Bc6 Ra8 Nb7 Bg3 Bd7 Bb8 Bdf5 Ba7 Bfe4 Bf4 Bed3 Bfb8
3QNk2/1R1B3r/Q1R5/b2rR2q/nN1N3r/1KB5/1Qb2bq1/r1b1nqn1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 f5 h4 g5 e4 d5 c4 g3 Kc2 f3 c5 f2 b6 d3+ Kb2 g4 e5 f4 h5 b3 c6 d4 e6 d2 h6 g2 b7 f3 e7 d3 c7 g3 h7 Nd7 b8N Nb6 Nd7 Nf6 Ra3 Na4+ Ka1 b2+ Ka2 Ra7 Ne2 g1B Nf4 g2 Nc3 b1N Ne6 Ne4 Qb3 d1Q Nd5 d2 Ndc5 Nec3+ Ka1 Bh6 Bc4 f1R Ne4 f2 Qb6 Qh5 Qb2 d1R Nb4 Rd5 Rb3 Nd2 Nd4 Bf5 c8Q Ne2 Ka2 Nf3 Bd2 Ne1 Qa6 Qa8 Bc3 Bc1 Bb5+ Kf7 Nf6 Bc2 e8R Bh2 Nf5 g1B Bd7 Bc7 Re5 Kf8 Nd4 Ba5 Ne8 Qc6 Rh3 Qcg6 Rd3 Qg2 Rg3 Rc7 Rg6 Rc4 Nf3 Rh4 Nd4 Bh2 Rb6 Bg3 Rc6 Rfh1 Ka3 f1Q Ka2 Bf2 Ka3 Rg8 h8Q Ng1 Ka2 Qf7 Qf6 Rgh8 Qd8 Qfg6 Nd3 Q6g5 Rb7 R8h7 Nb4 Qh5 Qa7 Qa6 Bh3 Bd2 Qb1 Ne2 Re3 Nd3 Re5 Rd1 Qa1 Ne1 Bd7 Ng1 Qb2 Qaf1 Qa6 Rb1 Ka3 Bc1 Ka2 Be4 Ka3 Ra1+ Kb3 Bc2+
2q5/1rQR1b1N/3nrb1N/2br1q2/qrbn1K2/4R2N/1R3B2/BQQ1n2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 h4 Kf6 e4 Ke5 c4 Kf4 b4 g5 h5 a5 c5 d5 c6 f5 h6 g4 b6 d3 b7 d4 e5 a4 b5 a3 b6 a2 e6 Nf6 e7 Ne4+ Ke1+ d2+ Ke2 Nd6 e8N Ra6 c7 Nc6 b8B Rh7 b7 Be6 c8R Bf7 Nf3 g1N+ Kd3 g2 Qf1 Kg3 Rh5 d1R+ Bd2 f4 Nh2 f3 Rb5 f2 Ba7 Nf3 b8Q g1Q Rc7 Qc8 Nf6 Ne1+ Ke2 d3+ Ke3 Rb6 Nc3 Nd4 Rb2 Rb4 Rd7 Be7 Bc1 d2 Qc7 Bf8 Qb5 Kg2 Kf4 f1B Ne2 g3 Nhg4 Kh1 Qf5 g2 Qb1 Rg7 h7 Rg6 Nh6 Qf2+ Ke5 g1R h8Q R1g3 Nf4 Rgb3 Nh7 B1c4 Nh3 Rb7 Qf6 R3b4 Qg5 Qf1 Bb6 Qd3 Kf4 Re6 Rb3 Qc2 Re3 Qa4 Bb2 Qb5 Qc2 Be7 Rb1 a1B Qc1 Bf8 Qg6 Qf5+ Kg3 Be7 Bc3 Bb2 Ba7 Ba3 Ba1 Bf6 Bb6 Rb2 Ba7 Bc5 Bb6 Rb4 Rb2 Qh5 Qgb1 Qf5 Qc3 Rc1 Ba7 d1Q Qd2 Rc2 Qdc1 Rd2 Bb6 Qa4 Ba7 Qfc2 Kf4 Rd1 Bb6 Qd3 Ba7 Qf5+ Kg3 Ndf3 Ra3 Rd5 Bb6 Bcd4 Ba7 Bc3 Bf2 Bcd4 Rc3 Bc5 Re3 Qh5 Kf4 Nd4 Rg3 Qg6 Re3 Qf5+
Nkrb3R/1n2r3/1r1nK1Bb/4b2Q/1qQ2b2/4N2r/1b1R2RQ/n1N3nB w - - 0 1 legal: proof: d4 a5 g4 c5 f4 cxd4 e4 f5 b4 fxe4 f5 axb4 Bf4 h6 Bg5 hxg5 Bd3 b6 Bf1 Ba6 f6 Bc4 Bg2 Be6 Bf1 Bf5 gxf5 Rh7 Nc3 Rh3 Nb1 Rh8 Kf2 e5 Kg3 d5 Kg4 Kd7 a4 Kc8 c4 d3 h4 b3 a5 b5 c5 b4 f7 b2 f6 e3 Kf5 d4 h5 g4 c6 g5 c7 g3 a6 e4 h6 g2 h7 e2 a7 e1B Ra2 b3 Qc2 d2 Bd3 d1N Ra5 g4 Qc5 e3 Be2 d3 Rh5 g3 Rh2 d2 Bb5 e2 Ke6 Qd6+ Kf5 Bh6 f8N Nc3 f7 d1R Qa3 Na6 Ng6 Ne7+ Kg4 Nf5 Qc5 Bed2 Qd5 e1B Qc6 Qb4+ Qc4 Nc5 Ne2 g1B Nf8 g2 Ra6 Bd4 Rg6 g1B Nd7 Nb7 Na3 b1R Nc1 b2 Nc2 Be5 Ne3 Bh4 f8Q+ Bd8 Qf7 Nfd6 Ba4 Bf2 Bc2 Ne2 Rg5 Rb8 a8B Re1 Qh5 Ng1 Bg6 Bfg3 Rf2 Bdc3 Rd2 Bgf4 Qa2 Ne4 Kf5 Ned6+ Ke6 Bcd4 Nb3 Rbc1 Rg4 b1N Rgg2 Na3 Qb2 Rc3 Nc1 Nc2 Qa2 Rg8 h8R Na1 Qc4 Ra3 Qh2 Bb2 Qe2 Na5 Qeh5 Rb6 Bae4 Rc6 Nb6+ Kb7 Ng4 Rh3 c8Q+ Ka7 Bd5 Nab7 Na8 Rb6 Qc4 Kb8 Bde4 Bc7 Ne3 Rc8 Rg4 Bd8 Bh1 Rf1 Rgg2 Rff3 Bf7 Rfg3 Be8 Rg7 Bg6 Re7+
QqnrNb1n/1B4B1/3B3n/1bbN4/3p1n1R/2RnRqq1/1Q2r1N1/1K1k4 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 Ke7 h4 Ke6 e4 Ke5 c4 g5 Kc2 d5 c5 f5 b6 b3+ Kb2 f3 h5 f2 c6 f4 c7 d3 b7 Kd4 h6 g3 e5 f3 h7 d2 e6 Ke3 e7 g4 e8R+ Ne7 Bh3 f1Q Ra7 f2 Nc3 g2 Nf3 g1Q Ra3 g3 Ra2 g2 Ra5 Nd7 b8Q Ba6 c8N Nb6 Na2 Bb5 Ne5 Ng6 Ka1 b2+ Kb1 Qd6 Qb7 Qb8 Qc2 Ke2 Qb3 d1N Ne7 Nc8 Nf7 Qgh2 Ra3 g1B Bg2 Qhg3 Rh2 Rg8 Nd6 Nh8 Qc3 Rg5 Rh6 Re5 Ng6 Re6 Be4 Qfg2 Qa5 f1N Nh4 Bc5 Bf4 d4 Nb4 Nf2 Rc3 Nd3 Nd5 Q2f3 Ng2 Kd1 Rh4 Ne3 Re7 Re5 Ne8 Ng4 Qab6 Re6 Bd6 Nh6 Q6a7 Qfg4 Bf3+ Re2 Re3 Q4f4 Be4 Qff3 Qa3 Ra7 Qa8 Rd7 Nb6 Rd8 Bb7 Qg8 Nd5 Qgg3 Ka2 b1N+ Qb2 Nf4 Ka1 Nd2 Ka2 Nc4 Kb1 Nhg6 h8B Nce5 Bf6 Nh8 Bg7 Ned3
nK3r2/Q1b1R1rB/4Q1nq/RnN1R2B/1r3n2/2N1r1qr/2Qp1kb1/1B6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 d5+ Kd3 Ke5 e4 Kf4 c4 a5 b4 f5 b6 g2 e5 Kg3 b5 f4 c5 a4 c6 a3 c7 a2 e6 f3 e7 f2 e8B Bb7 c8B Ne7 h5 Ra4 h6 Na6 h7 Ng6 Rh6 Qd6 Rh4 Rb4 Rh6 Be7 Rh4 Nc7 Bc6 Na8 Nc3 Bd8 Nf3 g1N Be2 f1R Qc2 Kf2 Bf5 g3 Rh5 g2 Ne5 g4 Nd7 g3 Nc5 Nh3 Bcd7 Bc6 b7 g1R b8R g2 b6 Qf8 b7 Qh6 Re1 a1R Rg5 Re8 h8Q Ra3 Qf6 Rf8 Ra1 Re1 Qe6 Rab3 Ra5 Nhf4+ Kd2 d3 Bh5 d4 Be8 Nh4 Beg6 Re3 Bh7 Nhg6 Rc8 Be4 b8Q Ra3 Rc7 Rh3 Qd1 Rab3 Re7 Bf3 Kc1 d2+ Kc2 Bb7 Qb1 d1N Qa7 d3+ Kd2 Be4 Qc2 Bf3 Be4 Ra3 Re5 Rab3 Nd5 Nc3 Bf5 Nb5 Nc3 Ra1 Be4 g1Q Bf5 Qg3 Be4 Kg1 Ke3 d2 Qd3 Nh8 Nd5 Qh2 Qc3 Rf1 Bb1 Rf2 Qd3 Rg2 Qc3 Rg7 Qd3 Nhg6 Qc3 Rb2 Qc2 Ng2+ Kd3 Re4 Nc3 Re3+ Kc4 Kf2 Rc7 Qg3 Re7 Bg4 Kd5 Rb4 Kc6 N2f4 Kb7 Bf3+ Kc8 Bg2 Kb8 Bc7#
n1BNB1N1/QqrNQ3/3r3b/5R2/Brq3Q1/3pb2K/k2nr1b1/3r2bR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 e4 Ke7 b4 Kd6 c4 f5 h4 a5 h5 g5 b6 f4 b7 a4 h6 f3 b5 Kc5 h7 Kb4 b6 d5 c5 a3 e5 g2 Kf2 g3+ Ke1 a2 e6 f2+ Ke2 g4 e7 d3+ Ke3 d2 Kf4 d4 e8B Qd7 c6 Bh6+ Ke5 Ra7 c7 Na6 b8Q Nf6 b7 Ne4 Qf3 d1R Qf8+ Kb3 Qd6 Nd2 Bd3 f1Q Bb5 Qc4 Qe7 d3 Nf3 g1R Nc3 g2 Nd5 g3 Ng5 Rge1+ Kf6 g1R Ne6 g2 Kf5 Re2 Nf6 Kb2 Rc1 a1B Ba4 Ka2 Ng8 Bd4 Kg4 Bde3+ Kh3 Rgf1 Rb1 g1B Rb5 Rf4 Rf5 Rd4 Qa8 Rd6 b8N Bb7 c8B Nc7 Nd8 Bd5 Qb7 Na8 Qb6 Qdb5 Nd7 Rc7 Qa7 Bb7 Ngf6 Rg8 h8Q Rg4 Qhg7 Be4 Qg6 Qb7 Ng8 Rf4 Qg4 Bg2+ Kg3 Qe6 Kh4 Rb4 Kg3 Qc4 Kh4 Bd5 Kh3 Bg2+
1qbKR1Qr/1r1n2BN/k1B4R/2q1N1bQ/1p3B1b/2Rn2n1/1b2b1n1/6Q1 w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 b5 d4 c5 e4 Kc7 g4 Kb7 d6 c4 d5 b4 g5 a2 g6 f3 d7 h3 Ke6 c3 e5 f4 g7 h4 d6 h2 Na3 c2 Rb1 a1B Bh3 f2 Qh5 f1N Bb2 c1B Bf5 f3 Kf7 f2 e6 h3 e7 Bg5 e8R Nf6 g8Q Be7 Nf3 Ra7 Nc4 Na6 Rc1 Nc5 Rc3 Ka6 Nce5 Rb7 Be4 Ne3 Bc6 f1B Bc1 Qa5 d8Q Bb2 d7 Ng2 Bf4 Be2 Qc7 Qb5 d8B Nd3 Qd6 Qc5 Qd4 Bh4 Bc7 Bd8 Ng5 Be7 Nh7 Bg5 Rhc1 h1Q Qg1 Qh2 Re1 Bh4 Bh6 Qg3 Bg7 h2 Rf1 h1N Rf3 Qh2 Rh3 Nd7 Bb8 Beg5 Bd6 Nf6+ Kf8 Bd7 Ke7 Ng3 Kd8 Bc8 Nf7 Qe3 Bf4 Qa7 Ne5 Qb8 Qh1 Qg1 Qh2 Qf2 Qg1 Qc5 Qg6 Nh1 Rb3 Be1 Rh6 Beh4 Qh5 Ng3 Rc3 Nd7+
6QB/1Q3r2/3R1N1b/NR3N1K/nb2r3/2qBqkBp/q3nbq1/2bn2R1 w - - 0 1 legal: proof: g4 f5 e4 fxe4 h4 a5 d4 c5 f4 cxd4 f5 b6 b3 Ba6 b4 axb4 h5 Bc4 h6 Be6 f6 Bf5 gxf5 Qc7 Bh3 Qf4 Bg2 Qxh6 Bf1 Qh2 c4 Kf7 a4 d5 c5 h5 c6 g5 c7 e5 c8Q d3 a5 h4 a6 g4 a7 d4 Ba3 e3 Nh3 e2 Qa6 b5 Bb2 b3 Qc8 b4 Na3 g3 Qb7+ Nd7 Nc4 g2 Kf2 g1B+ Kf3 e1B Kg4 d2 Qc7 d3 Ne3 e4 Ba3 b2 Bg2 b1Q Nf1 b3 Qc5 b2 Qc8 e3 Bb4 e2 Ba5 Bh6 Bc6 Nb6 Bc3 Bef2 Bb5 e1B Ra5 Qc1 Ne3 b1Q Qf3 d1Q Kh5 d2 Bd3 Rh7 Rb5 Qa2 Nf4 h3 Nfd5 Qg2 Qb7+ Ne7 Qg4 Bh2 Rg1 Re8 a8N Na4 Nab6 Qdf3 Nbc4 d1N Na5 B2f4 Be5 Qe4 Bc7 Bfg5 Bg3 Qe6 Qc4 Bb4 Qb3 Qc3 Qc4 Kg8 f7+ Kg7 Nf6 Nc6 f8R+ Re7 Rb8 Nd4 Rd8 Ne2 Rd6 Kf7 Neg4 Bc1 Ne3 Rg7 Qcc8 Rg4 Qca8 Rd7 Qg8+ Ke7 Ne8 Re4 f6+ Kd8 f7 Ke7 Nf6 Qeb3 Rdd5 Ke6 f8B+ Rf7 Bg7 Qba3 Rd8 Qa3b3 Bh8 Qba3 Ned5 Kf5 Rd6 Qa3b3 Bh4 Qba3 Ne7+ Kf4 Bg3+ Kf3 Nf5 Qa3b3 Bc4 Qe3 Bd3 Qc3
nk1BN3/r2Rp3/R1rb2BK/3r4/r1r2Bb1/nqQr1b1N/2R5/2b1N2Q w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Ke2 d5 f4 Kd7 g4 Kc7 c4 h5 c5 h3 c6 e3 Kf3 e2 f5 e1B Kf4 d3 Kg5 d4 f6 h2 f7 b3 Qd2 h4 Qc2 b2 Qe2 h3 Qd2 Ra4 Nc3 b1R Qd1 d2 Bd3 Bg3 Ra3 Rh4 Be4 d3 Bg6 Nd7 b6+ Kb8 b7 Ne5 Nd5 Rb6 Nb4 Nf6 Nc2 Qd5 Ne1 Nfd7 Ra2 Bg7 f8R Qb3 Rd8 Nc4 Rc2 Bb2 Qf3 d1R c7+ Ka7 Bf4 d2 Qd5 Rc6 b8B+ Ka8 Qf3 Ndb6 Rd7 Bc1 Qe4 Na3 Qf3 Ba6 c8Q Be2 Bbc7+ Ka7 Qc3 Na8 Q8h8 Kb7 Bd8+ Kc8 Be3 Bd6 Bf4 Kb8 Qh5 Bf3 Kh6 Rac4 g5 Bg4 Bd3 Ra4 g6 Ra7 g7 Rc4 Ngf3 Rc6 Rg1 h1R g8N h2 Ng5 Ra4 Rg3 Rf1 Rg2 h1B Bg6 Ra7 Rg1 Bhf3 Nf6 Rf2 Rg3 Re2 Ne8 Re4 Nh3 Rec4 Nd3 Re1 Rg2 Re5 Ne1 d1R Ra2 Red5 Rgc2 R1d3 Ra1 Nb1 Ra6 Na3 Ng5 Rh1 Qh4 Rg1 Qh1 Rg2 Nh3 Re2 Qe5 Ree4 Qh8 Ra4 Qc3 Rec4
1Rrqq2n/NKNb1p2/1R1Q2b1/Q3qB1B/1q1B1k2/N2q4/qbr1R3/2q5 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 g3 Na6 Rh3 Nc5 Rh1 Ne4 Nd2 g4 Nb1 Ng5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 h5 c4 d5 a4 b3 e4 b2 a5 d3 c5 d4 a6 d2 c6 g2 a7 h4 g6 g3 c7 h3 Kb6 h2 g7 d3 Qe1 d1Q Bd2 Qg4 Ne2 g1Q+ Be3 g2 Qd1 d2 Bc5 Qgd4 Qe1 d1Q Ra3 g1Q Rb3 Ne7 g8R Bg7 Nec3 Qge3 Qd2 Kf4 e5 Ng6 e6 Bd7 e7 Rc8 e8N Qe5 Qd6 Qdd3 Na3 b1Q a8Q Qa2 Qa5 Rh4 Rg1 h1Q Ncb5 Rh2 Be2 Nh8 Rg2 Qhc1 Bd4 Qee4 Bf3 Qee1 Rgb2 Rc2 Na7 Qe6 Bh5 Qb4+ N7b5 Qee7 Ka7 b6 Kb7 Qe6 Na7 b5 Nf6 Qee8 Rf8 Rc6 Re2 Rc2 Rg8 Qbd2 Rb1 b4 Rb2 b3 Nd5+ Kg5 Rb1 b2 Rf8 Ra8 c8B Qb4+ Qdb6 Bf6 Nc7 Kf4 Rg8 Bh3 Bf5 Rc8 Bh7 Bd7 Bf5 Qbd2 Rg6 Bg7 Qbc5 Qb4+ Rb6 Bf6 Ra1 b1B Qd6 Qab2 Ra2 Qa1 Rb2 Qa2 Rb3 Qg3 Bd3 Qa4 Bc5 Rb2 Rc6 Rd2 Rb5 Qb4 Kb6 Rb2 Bdg6 Bd3 Bf2 Rc2 Ka6 B3f5 Rb8 Bg7 Rcb6 Qd3+ Kb7 Be4+ Qc6 Qf5 Bh7 Bb2 Bd4 Qfe5 B7g6 Bef5 Qd6 Rd2 Bg4 Rc2 B6h5 Bh7 Bf5 Bg6
N2BKRQ1/2Rn1Qb1/1Bn3R1/Nk4pN/2b3n1/bbq2b2/2qB4/2r1b2n w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 f5 b5 b4 axb4 Be2 c5 g5 cxd4 Bf3 Ra6 Bg4 Rf6 gxf6 hxg4 Kd2 d5 a4 Kd7 c4 Kc6 h4 e5 f7 g5 h5 b3 c5 d3 Kc3 d2 Kb4 e3 h6 g3 h7 b2 a5 e2 a6 e1B a7 e4 a8N d4 f6 e3 Qc2 d1B+ Qc3 d3 Nd2 b1B Qb2 g2 Nc7 e2 Ra5 Ba2 Nh3 g1B Ra7 Bdb3 Na8 Bb7 Nf4 Bg7 f8R Qc7 f7 Nf6 Rh6 Nd7 Nh5 Bh2 Qc2 Bd6 Rg6 Ng4 Qc4 Qc8 Ka5 b4 Qf4 Bc4 Nb3 d2 Ka4 d1N Bd2 Rg8 h8B Ndf2 Qf6 Nh1 Na5+ Kd5 c6 Kc5 c7 b3 Qf1 b2 Qf6 b1Q Qf1 Bc3 Bf6 Bf3 Bd8 Bg7 Rb7 Qc1 Ra7 Qc3 Rb7 Qb8 c8Q+ Qc7 Ra7 Beg3 Qb8 e1N Qb3 Nc2 Rb7 Qc8 Rc7+ Kd4 Qb8 Ba3 Qf2+ Kd3 Qfa7 Bcb3+ Kb5 Be1 Qab7 Nb4 Q7a7 Nd5 Qab7 Bc4+ Kc6 Nb4+ Kd6 Bcb3 Ke7 Nc6+ Ke8 Rh8 Rg8 Bc4 f8B Bab3 Bc5 Rh6 Rf8 Qc2 Bde3 Kc3 Bb6 Kb4 Bd2+ Kb5 Nf4 Rh2 Nh5 Qc3 Bc1 Rc2 Bd2 Rc1 Q7a7 Nde5 Qab7 Qf5 Q8c8 Qfc2 Qe6 Nd7 Qg8 Nb4 Qbd5+ Ka6 Qde6 Nc6 Qef7 Kb5
1n1Rrk2/B3n2r/3RbB2/b1Q1p3/NbK5/2b1r1b1/1Qb2BrQ/4NNr1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 Bc4 Qa5 Be6 fxe6 f6 Qf5 exf5 e5 Bb2 e4 Ba3 Ra5 Bc1 Ra8 Kd2 d5 h4 b5 a4 e5 c4 g5 h5 d3 a5 e3+ Ke1 b3 a6 b2 a7 g3 c5 b4 c6 b3 h6 e2 Kd2 d4 h7 g4 c7 g2 Ra6 g3 Rd6 Be6 c8N Ne7 Nf3 g1B Nb6 g2 Na4 Bh2 Qc2 g1B Ne1 Bg3 Rh2 Rg8 h8B Rg7 Rh6 Rh7 Rd8+ Kf7 Nbc3 b1B Nd1 b2 Ne3 Kg8 Nf1 Kf7 Qb3 Bc2 Qc3 b1R Qb2 Ra1 Bg7 Ra2 Bh8 Na6 Bg7 Rc8 a8Q Nb8 Qh1 Ra3 Qh2 Ra2 Rd5 Re8 Rd8 Ra3 Qc3 Rb3 Ba3 Kg8 Bc5 Ra3 Ba7 Kf7 Kc1 d2+ Kb2 d1R Qb3 d3 Kc3 Ra2 Qb2 d2 Kb4 Bb6 Kb5 Nd5 Kc4 Bb4 Bh8 Kf8 f7 Ra3 Bf6 Re3 Be7+ Kg7 Ng2 Rb3 Nfe3 Bd7 Rd6 B6a5 Bg5 Be6 f6+ Kg6 Bh4 Rb1 Bg5 d1R Bh4 Rd2 Bg5 Rg1 Nf1 Nc6 Ne1 Nb8 Bge3 Ra3 f8B Kf7 Be7 Kg8 f7+ Kg7 Ng2 e1B Bed4 Rf2 Bg5 Bed2 Ne1 Rfg2 Bdb6 Rf3 Be7 Bdc3 Bg5 Bef5 Bf2 Re3 Bf6+ Kg6 f8Q Bh3 Rc6 Be6 Qd6 Kf7 Qc5 Kg8 Rcd6 Kf8 R6d7+ Ne7+ Rd5 Bef5 R5d6 Be6+
4b2b/2NQnn2/1qR2rq1/3B2nq/1N4N1/2p2bKR/1BB1kp2/1rR3qQ w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 Kf2 Kd7 d4 Kd6 g4 Kd5 g5 Ke4 e3 h5 g6 c5 g7 f5 d5 b3 b6 f3 b7 h3 d6 b2 d7 f4 Qe2 h2 Qe1 h4 Ra2 c3 Ra4+ c4 Na3 b1Q Nc2 h3 Ne2 Kd3 e4 Nc6 b8R Ne5 Ra1 Qdb6+ Ncd4 c2 d8N c3 Nc6 Nf7 e5 Ra6 e6 Ne7 g8B Bg7 Ra2 Bd7 Ra1 Be8 Bb2 c1Q Rc8 Rh7 Bg2 Bh8 Ng1 Rh6 Rc7 Rf6 Qf1+ Kd2 Bh7 Qg6 Nb4 Ra5 Rb1 Ra1 Rc6 Qd1 Rc1 Rb1 Rc5 Qdc2 Nb5 Qh5 Nc7 Qcg6 Qb5 Qhf5 Qc6 Qfh5 Kf1 f2 Nf3+ Ke3 Ne5 Kd2 Bd5 Ke3 Rg1 h1B Rg3+ Bf3 Ng4+ Kd2 Qa8 h2 Rc6 h1N Rh3 Be4 Rf3 Ng3+ Kg2 Ke2 Qb7 Bf5 Rd3 Ne4 Rh3 f3+ Kh2 Neg5 Kg3 f1Q Qa8 Ng8 e7 f2 Qa1 Be4 Qa8 Bd7 e8Q Ne7 Qec8 Be8 Qd7 Bf3 Qa1 Qgh6 Bc2 Q6g6 Qa8 Kd2 Qa6 Qd1 Qf1 Qe1 Qg2 Ke2 Qh1 Qg1+
5BR1/3rn2Q/3nr1b1/K6p/2Bp1Nk1/1nqrQ3/N4b2/1BRNRbqb w - - 0 1 illegal: No possible last move
Nr4N1/4n1qR/pKnB1Nk1/3B2b1/bQp1q1Q1/2r5/3Q1nRr/1b4Br w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 h4 g5 f4 exf4 b3 cxb3 Rh2 gxh4 Rh3 Nc6 Rh1 Nb8 Kf2 f5 g4 Kf7 e4 h5 d4 c5 d5 f3 Ke3 b2 d6 a6 e5 f2 b6 h3 d7 h2 e6+ Kg6 b7 h4 g5 c4 Kd4 h3 e7 f4 Kc5 f3 Bg2 f1R Na3 b1Q Be3 f2 Bd5 Qe8 d8Q Qe4 Nb5 Rh6 Qg4 Qd3 Kb6 Bd7 Nc7 Nc6 b8B Qf7 e8Q Qe4 Ne2 Be7 Ra2 Rc1 Ng3 f1B Nh5 Bd3 Rg2 Rc3 Qf8 Qg7 Nf6 Bb1 Bg1 Be8 Qd6 Bd8 Qdf4 Rh8 Qb4 Nge7 Qd2 Rh6 Bc5 Bd7 Ba7 Rh7 Bd6 Rc8 Re1 h1R Re3 h2 Rh3 Rh8 Rh7 Rb8+ Kc5 Rg1 Na8 h1N Bb6 Nf2 Ba7 Rc8 Bb6 Rh1 Ba7 Rc7 Kb6 Rc8+ Kb7 Nf5 Bac5 Na5+ Ka7 Qh6 Qgf4 Rb8 Rf7 Nh3 Ng4 Ba4 Bg1 Kh5 g6 Nf2 g7 Bg5 g8N Kg6 N4f6 Ne7 Qh4 Qf8 Qg4 R8h2 Rh7 Qg7 Qe3 Rc8 Kb6 Nac6 Qd2 Rb8+
3qBn1Q/N2n1Qqp/3Q1p2/8/bnRn4/Br5k/1qb1R1N1/KB2r1qN w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Ke7 a4 Ke6 c4 Kf5 Kc2 b5 Kb2 d5 g6 d3 c5 d2 g7 f6 c6 b3 a5 d4 c7 d3 a6 b4 a7 g2 e3 g3 Qe1 Kg4 e4 d1Q e5 d2 e6 Ne7 g8N Nd7 Rh5 Ng6 e7 Ngf8 e8B Rb8 Ne2 g1N a8Q g2 Ra4 Nf3 Re5 g1Q Qd5 Nd4 Ng3 Qe2 Qf2 d1B+ Ka1 Bc2 Qh2 Qeg2 Nh1 Rb5 Qf4+ Kh3 Bd3 Qg7 Ba3 Ba6 c8Q b2+ Ka2 Rb6 Ne7 Bb5 Nc3 b1N Nd1 b3+ Ka1 Nc3 Re2 Na2 Rc4 Nb4 Qfd6 Ba4 Nc6 Rb5 Qf7 Re5 Rd2 Re1 Re2 Rg8 Na7 Rh8 Kb2 Rg8 Ne3 Rh8 Kc3 b2 Ng2 b1Q Be4 Qc1 Qcb8 Rg8 Bd3 Qgh6 Qa8 Rg3 Qab8 Qcd2+ Kb2 Qg7 Qc8 Bb1+ Bc2 Qc1+ Ka1 Rf3 Bb3 Rc3 Ba2 Bbc2+ Bb1 Rb3 Qg8 Bg6 Qb7 Bc2 Qh8 Rd3 Qbd5 Rb3 Qf7 Qb2+
2R2qRn/4n1r1/rb1QBK2/Q7/3nQ3/p1R1rBpq/3B1nn1/N3rk1N w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 h3 fxg3 Qd3 g5 Qd2 g4 Qd1 g2 Nc3 g3 Nb1 Bb7 Rh2 Bf3 Rh1 Bg4 hxg4 Qe7 Rh2 Qg5 Rh1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ d3 b4 a5 b5 d5 e5 h5 e6 d4 b6 h4 b7 a3 e7 h3 e8R h2 g5 a4 c3 a2 g6 a3 g7 Rh7 Ke5 f5 Bd2 f4 Be1 f3 Qc1 f2 Nh3 g1N Kf5 Ne2 Kg6 d2 Qd1 Kd3 c4 Bc5 Bg2 f1R Qa4 d1N Bf3 Ne3 Nd2 Ng2 Qa5 Ne7+ Kf6 Bb6 g8Q Ra6 c5 Nef4 c6 Rg7 c7 Nbc6 c8B Nfg6 b8Q Nh8 Rc1 a1R Be6 Qc8 Rg1 h1Q Nb3 Ke3 Bb4 d3 Rc3 Rfe1 Qd6 Nd4 Nf2 Qh3 Nh1 Ra2 Rf1 Rae2 Na1 Qa8 Rcc8 d2 Qh7 d1N Rg8 Nf2 Qh4 Kd3 Bd2 Re3 Qhf4 R1e2 Rfc1 Re1 Bh5 Qf3 R1c3+ Ke2 Bhg4 Kf1 Qff5 Qa8 Bf3 Qb8 Qe4 Qa8 R8c5 Qe8 Rc8 Qf8+
1B2bQ1N/r1N1q3/BQR5/bbBn1p1b/5n1R/q1np3N/7Q/Kbk3n1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 b5 a4 g5 Qd2 gxh4 Kd1 b3 Ke1 b4 Qd3 Ra5 Qd1 Rb5 axb5 Bc5 Na3 Bd6 Nb1 Bf8 Kd2 Ke7 g4 Kd6 c4 Ke5 e4 f5 c5 d5 c6 h5 g5 d3 b6 Kd4 b7 b2 g6 h3 e5 h2 g7 f3 c7 f2 e6 h4 e7 b3 e8Q h3 Qd7 Rh7 Ra4+ Bb4+ Nc3 b1B Qe1 b2 Qde7 Bd7 c8N Nf6 g8Q Be8 Kd1 d2 Nge2+ Kd3 Qgg7 d4 Na2 Nh5 Qef6 Nd7 b8B Nb6 Qg8 Ba5 Nd6 Ra7 Nf7 Nd5 Nh8 Qe7 Qgf8 Nhf4 Qb6 Ke3 Rg1 h1N Rg6 h2 Nac3 Ng3 Ng1+ Nge2 Nh3 h1Q Nb5 Qf3 Nc7 Kd3 Rb4 Kc3 Rd6 Ng1+ Qe2 Qg3 Qe5 Qd3 Be2 f1B Ra4 Qg3 Ba6 Bfb5 Rc6+ Kb3 Rac4 Ka2 Qe2 Qga3 Qh5 Bd3 Qh4 Be2+ Kc2 d1N Be3 B2h5 Qf2 N1c3 Qh2 Qad6 Bf2 b1B+ Kc1 d3 Re4 Kb3 Bd4 Ka4 Kb2 Qc5 Ka1 Kb3 Bf2 Kc2 Rb4 Qcd6 Bc5+ Kc1 Ra4 Ng6 Rh4 Ngf4 Bd4 Qb4 Bc5 Qa3+
KR6/3qprk1/5pB1/N1Q1B1qr/r1n3nr/3n2nR/bNQN4/1Q1R2q1 w - - 0 1 legal: proof: g4 a5 h4 g5 d4 gxh4 e4 c6 f4 Bg7 b4 axb4 g5 Bh6 d5 cxd5 g6 Bg5 fxg5 dxe4 Qg4 e3 Qf3 Nc6 Qd1 Nb8 Ke2 Kf8 Kf3 d5 a4 h5 c4 b5 c5 h3 a5 b3 a6 b4 c6 h2 a7 h4 c7 h3 Nd2 b2 Qe1 b1R Ne4 e2 Bb2 b3 Nc5 d4 Ke4 d3 Na4 d2 Nf3 d1Q Nd2 Be6 c8Q Nc6 Be5 Na5 Nb2 Qc1 Qc2 Nh6 g7+ Kg8 Qed1 e1N Bd3 Qd7 Qh5 Kh7 g8R Nc4 Rb8 f6 g6+ Kg7 Qg5 Rf8 Qg1 Ng4 Qc5 Rf7 Ra3 Kh6 g7 Kh7 Rf1 h1N g8Q+ Kh6 Qgc8 h2 Qb7 Kg7 Rg1 Bd5+ Kd4 Ng3 Bg6 Nd3 Rd1 h1R Qbb4 Qf5 Qbb5 Rh5 Qb7 Bg2 Qbb6 Bh3 Kd5 Ra1 Kc6 Qc8+ Qc7 Qd7+ Kb7 Rh4 Qb1 Ra2 Ne4 Qg5 Nd2 Ra1 Rf8 Rd8 a8N Bg2+ Ka7 Bd5 Nb6 Be6 Kb7 Ra8 Rc8 Ra5 Rb8 Rb5 Ka8 Ra2 N2a4 b2 Q7c6 Ra1 Qe4 Ra2 Qc2 b1Q Nb2 Na5 Rb3 Ra4 Rc3 Ba2 N6c4 Nb7+ Na5 Nd6 Qeb4 Nc4 Qbb3 Qc1 Qb1 Qe3 Q3c2 Qg1 Ne4 Qg5 Nd2 Nc1 Rf3 Nd3 Re3 Nh5 Rh3 Ng3 Qc8 Rd5 Qc5 Qh6 Bc3 Rdh5 Be5 Qg5
1Nr1NBr1/rNQ2K2/1r1n3B/1R2rn1p/b4R2/B7/kpb1bR2/2rQ2b1 w - - 0 1 legal: proof: e4 c5 h4 a5 d4 cxd4 b4 axb4 Rh3 g5 Rh1 gxh4 Bh6 f5 Bb5 d3 Bc1 Qa5 Bc4 d5 Bb3 d4 Bf7+ Kd8 Bg6 Qd5 exd5 Kd7 Bh5 Kd8 Bf3 Ke8 Be4 fxe4 Kd2 Kd7 c4 Kd6 g4 Kc5 f4 h5 a4 b5 d6 e5 a5 h3 d7 h2 d8B b3 a6 Kb4 g5 b2 f5 Nd7 f6 Nc5 f7 Bd7 a7 Rc8 a8R Nh6 g6 Nb7 g7 Rg8 c5 Nf5 c6 Bc5 f8B Nbd6 Na3 b1R c7 Ba7 Bg5 e3+ Ke1 d2+ Ke2 d3+ Kf3 e2 Bh6 e1R Ne2 e4+ Kf4 e3 Kg5 Bb6 Nd4 e2 Rf1 h1R Kg6 Kc3 Ra6 b4 Nc6 b3 Rf4 Bg1 Nb8 Ba4 Ra2 Rf1 Rb2 e1R Rb6 Re5 Nc4 Ra1 Na5 Rf2 Qg4 d1B Rb5 d2 Nb7 Bc2 Qd1 Rfe2 Kf6 R2e4 Ra2 Rb4 Ba3 Rc1 Rd5 Rb6 Rb5 Rh2 Rb2 Rhe2 Kg6 Re7 Ra2 R2e5 Kf6 Rh8 g8N Reh7 Kg6 Rf7 Nf6 Rg8+ Bhg7 Rfe7 Ne8 Rd7 Kf6 Rde7 Bh6 Rd7 Qe2 d1B Qf1 Be2 Qd1 Rcd8 c8Q+ Rc7 Qd7 Rdc8 Nd8 Ra7 Nb7 Bb1 Rd2 b2 Qh7 Bbc2 Qf7 Bc4 Rdf2 Be2 Qc7+ Rc5 Bb4+ Kb3 Ba3+ Ka2 Ke6 Re5+ Kf6 Ne4+ Kf7 Ned6+
bnb3b1/6N1/pr4R1/1bpn1p1B/2QQB3/2q2N1k/1QRrN1b1/rK1B4 w - - 0 1 legal: proof: h4 c5 b4 cxb4 f4 e5 h5 exf4 a3 b3 h6 b2 Rh5 gxh6 Rh2 h5 Rh1 h4 c4 b5 c5 d6 d3 b4 c6 b3 Be3 Bg7 Bc5 Bc3+ Nd2 Bb4 axb4 dxc5 Nb1 Kf8 Ra6 Ke7 Ra1 Ke8 Kd2 Ke7 g4 Ke6 e4 f5 g5 h5 e5 h3 g6 f3 g7 a6 c7 f2 b5 h2 d4 h4 d5+ Kd7 e6+ Kd6 e7 Ke5 e8B Kf4 b6 Kg3 d6 h3 b7 Rh5 d7 Ne7 g8Q+ Kh4 Ne2 Rh6 Rg1 h1B Rg6 h2 Qc4+ Be4 Ra2 h1B Bh3 f1B Bg4 Bd5 Kc3 Bh3 Nd2 b1B Rc2 B3g2 Kb2 Bg8 Bh5+ Kh3 Nf3 Nd5 Qdd4 Qg5 d8N Qe3 Ne6 Qc3+ Kc1 Ra7 Ng7 Ra8 Ba4 Ba2 Rg4 Rb6 Rg6 b2+ Kd1 Bd7 c8B Bb5 Bd7 Be6 Bc6 Bc8 Bb3 Nb4 Be4 b1R+ Nc1 Ra1 Ba4 Nd7 b8Q Nd5 Qbe5 Nb8 Bb3 Bb1 Ne2 Ra7 Kc1 Rd7 Qb4 Ne7 Qdc4 Rd2 Qf6 Nd5 Qfd4 Ra5 Ba4 Ba2 Qb2 Ne7 Qcd3 Bg8 Kb1 Nd5 Bb3 Ra3 Q3c4 Ra5 Rc1 Ra3 Bd1 Ra5 Rc2 Ra4 Kc1 Ra1+ Qb1 Ne3 Ng5+ Kh2 Bb7 Bgc6 Nf3+ Kh3 Ba8 Bg2 Bb7 Ra3 Qb2 Be4 Kb1 Ra2 Bd5 Ra4 Be6 Ba8 Bd5 Ra3 Be4 Nd5 Qca2 Ra4 Qac4 Ra1+
b2B1r2/1N1b1p2/R4pnB/8/N1k2qb1/BbprR2K/R6Q/Nb1nQn2 w - - 0 1 illegal: No possible last move, all moves rejected
n1nn4/Qrb1r1K1/NN2k1B1/qRQr4/1b1pp3/4N1pR/B5bb/6QB w - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Kd2 e5 b4 Ke7 h4 d5 c4 a5 g7 e3+ Kd3 g4 h5 f3 b6 e2 b7 e1B h6 g3 c5 a4 c6 f2 b5 a3 h7 a2 b6 Qd6 c7 Ba5 Nc3 Ra7 Rb1 a1B Nge2 Qd8 Rb5 Ke6 Rh3 Bfb4 Na4 Ne7 Nec3 Nbc6 b8N Bb7 Na6 Nc8 Bg2 f1N Bh1 Re8 h8Q Nd2 Qf8 Nc4 Qc5 Re7 Qg1 Ba8 b7 N4b6 b8Q Rb7 Nd1 Bac3 Ke2 d3+ Kf3 d2 Kg4 Bd4 Ne3 d1R Kg5 Rd3 Kg6 Rd2 Nc2 Be3 Qa7 Rd1 Qf1 Bg1 Ne3 Bh2 Qe1 d4 Qf1 Rb1 Qg1 Qd5 Kh7 Nd8 Kh8 Rf1 g8B+ Rff7 Bh7 Rd7 Bd3 Rfe7 Bg6 Qa2 Kg8 Rd5 Kh8 Rb8 Kg8 Bb7 Kh8 Na8 Nb6 Bc6 Kg8 Rb7 Kf8 Rdd7 Kg8 Bg2 Kf8 e4 Kg8 Rd5 Kf8 Nd6 c8B+ Kf6 Be6 Nc8 Bef7 Ke5 Kg7 Qa3 Na4 Bc7 Nb6 Qa5 Kg8 Kf6 Kf8 Rde5 Ba2 Rd5 Kg8 Ke6 Kh8 Nf7+ Kg7 Nd8+
2R5/3nR1r1/Q1qQ1pq1/Nr1bb3/2B1nq2/1p2BK1n/1q1BN1Qp/1kN5 w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 Kf2 Kd7 d4 Kd6 g4 h5 e4 b5 g5 c5 g6 a2 g7 h3 Bc4 h4 Qd3 f3 Qd2 b4 Qe2 h2 Bb2 b3 Qc2 h3 Qd1 Qf6 Nc3 Rh7 Rc1 a1Q Qf1 Ra5 Nce2 Qg6 Bc3 Be6 Bd2 Nf6 g8Q Rg7 Ke3 f2 Kf3 Rb5 e5+ Kc7 d6+ Kb6 d7 Ne4 d8N f6 d5 Nd7 d6 Qb2 Nc6 Bd5 e6 Ka6 Nb4+ Ka5 e7 Ka4 e8Q Ka3 Nc6 Ka2 Qd8 Be7 Rc3 Bf8 Nc1+ Kb1 Qg2 Be7 Nge2 f1Q+ Ke3 Qff5 Re1 h1N Qe6 h2 Na5 Nhf2 Qb6 Bd8 Qa6 Nh3 Qe5 Qe6 Kf3 Bc7 Qf4 Qee8 Qfg3 Qa8 Rc2 Qc6 Qf4 Nf8 d7 Be5 d8B Nd7 Bc7 Nhf2 Bb6 Nh3 Bd3 c4 Bbe3 c3 Bc4 Bd4 Qc7 Be5 Qd6 Qa1 Ra2 c2 Ra4 Qb2 Rb4 Rc5 Rb8 Rb5 Na2+ c1Q Rc8 Qd1 Nc1 Qdc2 Rd1 Qcc3 Re1 Qb4 Bg1 Bd4 Ng3 Q4c3+ Re3 Neg5+ Kg4 Qcd3 Re7 Be5 Bge3 Qf1 Nge2 Qf2 Bf4 Ne4+ Bg5 Qh4+ Kf3 Qhh6 Bge3 Qf4+
BQ1nR1n1/2N5/N4krp/1p3q2/5p1r/1qqn1q1N/1b2KBQq/RR1Q4 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bb2 f4 Ba3 Ra4 Bc1 Ra8 h3 fxg3 Qd2 g5 Qd3 g2 Qd1 g4 Nc3 b6 Qd3 g3 Nb1 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Qc8 Ba3 Qc7 Bc1 Qd8 e4 Ke7 c4 f5 a4 d5 g5 b5 e5 b3 a5 f4 g6 d3 a6 d4 c5 d2+ Ke2 b2 a7 d3+ Kf3 Nc6 g7 Qd7 e6 Nd8 c6 Kf6 e7 Qf5 e8Q Ba3 Nh3 g1Q c7 g2 c8R Qh2 Nc3 g1Q Na2 b1Q Nb4 Bb2 Bg2 Qgc5 Na6 Qc3 Rg1 Rb8 a8N Rb6 N8c7 Qa2 Kf2 Qab3 Kf1 Re6 Ba8 Rb6 Qe4 Re6 Qg2 Rb6 Qe1 d1N Be3 d2 Ke2 Nf2 Qd1 Nd3 Rh1 Kf7 Bf2 Rg6 Qc2 Kf6 Rhb1 Nb7 Re8 Nd8 Kf3 d1Q+ Qe2 Qdh1 Qd1 h6 Ke2 Rg4 Qb7 Rh4 Qb8 Qf3+ Kf1 Ne7 g8Q Rh7 Qg2 Ng8 Bc6 Rg7 Ba8 Qfc6 Ke2 Rg6 Qdg1 Qcd5 Qd1 Qf3+
qk1K2Br/n2nR3/Q5p1/1N1B3b/4rN2/Rp2p1nR/1QQ1p1rb/4bB2 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 d5 cxd5 fxe4 Qf3 axb4 Qb3 Ra6 Qd1 Ra8 g4 Nh6 f5 Rg8 Bb2 Rh8 Be5 Rg8 Bf4 gxf4 g5 Nc6 g6 Nb8 g7 Rh8 Qg4 Ng8 Qg6+ hxg6 Ke2 Kd7 h4 e5 d4 b5 a4 c5 h5 Kc7 a5 c4 d6+ Kb7 a6+ Ka7 d7 e3 Kf3 e4+ Kg4 c3 d5 e2 d6 b3 h6 b4 h7 e3 f6 b2 Kg5 f3 Nh3 c2 Na3 b1R Nf4 c1B Rh3 b3 Nb5+ Kb6 a7 Kb7 Ra3 Qe8 d8Q f2 d7 Nc6 f7 Bd6 f8Q Bd2 Qa5 Nf6 g8B Be1 d8R Bg4 Rd7+ Kc8 Re7 Nd7 Qf7 Bh5 Qf5 Rb8 a8B Na7 Bad5 Bc7 Ne6 Bh2 Nf4 Rb6 Qa4 Re6 Qc2+ Kb8 Qa5 Re4 Qa6 Ne5 Kf6 Nd7+ Kg7 Qc8 Kf7 Qb7 Ke8 Qa8 Bg2 f1N Kd8 Ng3 Bf1 Bf2 Bg2 Rg1 Bf1 Nf8 Bge6 Rg2 Bf7 Rg8 h8Q Be1 Qhb2 Rh8 Bg8 Nd7
3K1k2/2Qr4/6np/2r1b3/1p3Np1/BRb2q2/RbQQ1rNp/1qn1BB1N w - - 0 1 legal: proof: g4 a5 h4 d5 c4 dxc4 e4 f6 d4 Bf5 b4 axb4 d5 Be6 g5 fxg5 d6 Bd5 exd5 gxh4 Qd3 h3 Qc2 Nd7 Qd1 Nb8 Kd2 g5 Ke3 c5 Ke4 b5 Ke5 h2 Ke6 c3 a4 c2 f4 b3 f5 h6 a5 b2 f6 b4 a6 g4 a7 c4 Ra2 c3 Nh3 Nd7 Nd2 b1Q Ne4 Qc7 Qd2 Qc6 Nef2 Rd8 a8Q Ne5 Qc8 Bg7 f7+ Kf8 Ba3 c1B Nf4 c2 Ng2 Bb2 Rg1 c1R Nh1 Qb7 d7 Rc5 d6 Nd3 Qc2 Rh7 Qc7 Ra8 d8N Qf3 Kd7 e5 Qd2 Raa5 Kc8 e4 d7 e3 Ne6+ Ke7 Qc2 e2 Nef4 e1B d8B+ Kf8 Bh4 Bec3 Be1 Bge5 Kd8 Ne7 Qd2 Nc1 Qc2 Kg7 Qd2 Ng6 Qc2 Kf6 f8Q+ Rf7 Qfe7+ Kg7 Qed7 Kf8 Qdd2 Rh7 Nh4 Ra6 Rg3 Rf6 Nhg2 Qe4 Nh3 Rf2 Nhf4 Re7 Rd3 Qf3 Re3 Bcd4 Rb3 Bdc3 Qdd3 Rf7 Qdd2 Rd7+
4qB2/1Br1N3/1Qp1nb2/R1K3q1/N1Q2rk1/Npb1nR1p/1pBr4/Q1b5 w - - 0 1 illegal: No possible last move
5qqk/7p/1p1Q1NQR/1p1B4/4qR2/1r1rb3/Rb1Np1Q1/KnnNq2B w - - 0 1 legal: proof: e4 c5 b4 f5 f4 fxe4 d4 cxd4 b5 g5 Nh3 a6 Ng1 axb5 g4 b6 f5 Bb7 Bf4 gxf4 h3 Bd5 g5 Bf7 Nc3 Bh5 Nb1 Bg4 hxg4 Qc8 Kd2 Qc7 Ke1 Qd8 Kd2 Kf7 Kc1 Kg7 Kb2 d5 a4 e5 c4 e3 g6 e2 a5 e1B c5 d3 g5 e4 c6 e3 c7 d2 c8Q e2 a6 f3 a7 f2 Qe6 d4 Ra3 d3 Qd5 Nd7 Rh2 Ne7 Nc3 Ne5 Qg2 Nd5 Ra2 Ba3+ Ka1 Qg8 Rh6 Rd8 a8Q Rc8 Qb1 d1Q Qb8 d2 Qd6 Qa4 Nd1 Qe4 Nf3 Rc3 Qc2 Nd3 Qb1 Qd8 f6+ Kg8 g7 Nc1 Qd3 Rb3 Qc2 Nc3 Qcd3 Kf7 g8N Nb1 g6+ Ke8 g7 Kf7 Nc3 d1Q Nd2 Qf8 Q3g3 Qdc2 Nd1 Qcc8 Qg1 Qce8 Bg2 f1Q Bh1 Bf2 Q1g2 Qe1 Qg5 Be3 Q5g3 Q8a8 Qg5 Ke8 Qg6+ Qf7 Qf4 Qc8 Ne7 Qc5 g8B Kf8 Nd5 Qfe6 f7 Qg4 Qe6 Kg7 f8R Qd6 Rf5 Qgg3 Bf7 Rd8 Qg4+ Kh8 Nf6 Qb8 Rf4 Rdd3 Qd6 Qf8 Qh5 Qgg6 Bd5 Qgg8 Qhg6 Bb2+
R3B3/pQ1n2B1/NBQ1KRrR/bN5p/N3b1p1/2r3p1/1q3q2/r1k2nr1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 h4 cxd4 f4 exf4 h5 Qh4+ g3 fxg3 Kd2 Qxh5 Ke1 Qh2 Kd2 Ke7 Kd3 Ke6 Ke4 g5 b4 h6 c4 f6 c5 g4 b6 d3 b5 d2 c6 Bb4 b7 Ba5 c7 Ne7 b6 Rg8 Bb2 Rg6 Na3 Nd5 Qa4 d1R Nb5 Ne3 Rc1 d6 Rc6 Nd7 b8B Ra1 b7 f5+ Kf4 Kd5 Bg7 Qg2 Rb6 Qh2 Qe4+ Kc5 Qc6+ Kb4 Bg2 Nf1 e4 Kb3 e5 Kb2 e6+ Kb1 e7 d5 e8R d4 Ne2 d3 Nec3+ Kc1 Ra6 d2 Na4+ Nc5 Ke5 d1R Bd5 f4 Bf7 Bf5 c8Q f3 Bc7 f2 b8N Be4 Q8b7 h5 Bb6 Re1 Rf8 Rd1 Be8 Qg2 Qf6 Nd7+ Ke6 Nh2 Rg8 f1Q Rh8 Qe1 Rf1 Qb2 Rf4 Nf1 Rg8 Rg5 Qh6 Qe3 Rf6 Qef2 Qg6 Rc5 Rh8 Rc3 Rhf8 Bh1 Qge4 Bf3 Qec6 Be4 Bf7 Qa2+ Qd5 Qh2 Rh6 Qae2 Bd8 Rca3 Bc3 Rd4 Ke7 Nd2 Rae6 Rd3 Qdc6 Qhf2 Bb6 Rd5 Bf6+ Rc3 Na6 Rd3 Rfh8 Rg8 Be5 Rg5 Bg7 Rg6 Rf6 Rd5 Ke6 Rd4 Nbc7 Qb5 Rg8 Qb2 Nb5 Rd3 Rb8 Re3 Re8 Re1 Ra8 Rg1 Be8 Nf1
NQB2n2/1bB4p/5pbp/1N2b3/bqB1Nn2/1Q1pk1K1/rR4b1/1RRn4 w - - 0 1 legal: proof: b4 b5 d4 a5 f4 e5 h4 exf4 a4 c5 h5 cxd4 h6 gxh6 Rh3 Ra7 Rh1 Rb7 Bd2 axb4 Bc1 b3 Nd2 b4 Nb1 Rb5 axb5 Qe7 Rh4 Qf6 Rh1 Qd8 Kf2 Ke7 c4 Kd6 g4 Kc5 e4 d5 g5 f3 g6 f6 g7 b2 e5 d3 e6 Kd4 b6 b3 c5 d2 e7 Qd6 e8N Bb7 c6 Ne7 g8Q Qb4 c7 Nd7 c8B Ng6 Be2 Nf4 Nc7 Bd6 Bc4 Nf8 Nh3 Be5 Kg3 f2 Na8 f1B Na3 b1B Nf2 b2 Qb3 d1N Ne4 Bc2 Rb1 Bh3 Bd2 Bg2 Bc3+ Ke3 Nb5 d4 Rg1 Bc6 b7 Bd5 Rc1 b1B b8R Bc6 Rf1 Bb7 Rf2 Bd3 Rb2 Bdc2 Ned6 Bg6 Ne4 d3 Be1 Bc2 Rbb1 Qa4 Ba5 Qb4 Bc7 Ba6 Qb2 Ba4 Qd5 Rg8 Qb3 Rg7 Qb7 Rd7 Qa7+ Rd4 Rb6 Bb7 Qb8 Rd5 Na7 Ra5 Nb5 Ra6 Qa2 Qe7 Nd4 Bae8 R6b2 Qb4 Qb3 Ra5 Qa2 Ra3 Qb3 Ba4 Nb5 Ra2
8/R1N3b1/N4prp/nn3R2/1R2Q2p/Q1n3kp/qNqBr3/BB2rK1n w - - 0 1 illegal: No possible last move, all moves rejected
n2Rq1Qb/1b2r3/k1pp4/p1B3N1/BR6/n2nQ1B1/1p4Nq/QKRb2b1 w - - 0 1 illegal: No proof kernel
r3b1R1/2NpKp2/4Qp1n/qQ2N2r/R2r2B1/2N1QB1q/pr2q3/3B1kn1 w - - 0 1 illegal: Other
1KB2QQr/1RpN2Rq/p2R1pqr/2rn2np/4B2k/b6r/q2N4/B1Q5 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g3 fxg3 h3 g2 Ra2 g5 Ra1 g4 Na3 g3 Nb1 Bg4 hxg4 Bc5 Na3 Bb4 Nb1 Bf8 d4 Ke7 Kd2 Kf6 Kc3 h5 e4 a3 b4 a2 e5+ Kg6 e6 a6 b5 f6 g5 Bh6 Kb4 c3 Kc5 c2 e7 Ra7 e8B+ Kf5 g6 Bg7 d5 Qd7 d6 Rb7 b6 Rh6 Bb2 Kg5 Bd3 Qe6 d7 Qh3 d8R Nd7+ Kc6 Nc5 Nd2 c1R Rd6 Kh4 Be4 Rb8 b7 Bf8 Rb1 a1Q g7 Qa2 Ba1 Ne6+ Kd7 Rc3 Qc1 Ne7 g8Q Rc5 Rb2 Rc8 b8Q Nd5 Rb7 Be7 B8g6 Ng5+ Bgf5 Rf8 Qd8 Re8 Kc8 Bf8 Ne2 g1Q Nf4 g2 Ne6 Qhh2 Bh3 Qg3 Kb8 Qd3 Rh2 Be7 Nf8 Qdb1 Bf3 Qh7 Nd7 Bf8 Be4 Be7 Qg7 Rh8 Qdg8 Bf8 Qc4 Qgb1 Qc1 g1R Rg2 Rh1 Bhf5 Be7 Q7f8 Rh3 Rg3 Nf3 Rg7 Ng5 Nb6 Qd3 Bc8 Qg6 Nd7 Qh7 Bf3 Qdg6 Be4 Rc2 Rc6 Ba3 Rd6 Rc5
5q2/p2N2R1/2Qq1pB1/Q2pB3/1qNpnKp1/RR3rpr/n2b3Q/1N3k2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 b5 h5 bxa4 g3 Ba6 Rh4 Bd3 Rh2 e5 Rh1 Bg6 hxg6 exf4 Bd2 fxg3 Bf4 Bh6 Bc1 Bf8 e4 Ke7 Ke2 Ke6 Kf3 Ke5 b4 d5 c4 h5 g7 h4 c5 h3 c6 f6 b5 h2 c7 a3 c8Q a2 b6 Na6 b7 Rh7 b8N Ne7 g8R Rh3 Bd3 Bh6 Qa4 Qf8 Qcc6 Nc8 Qa5 Nd6 Rg7 Nb4 Bf4+ Ke6 Nd7 Re8 e5 Re7 Qcc5 Ne4 Qc2 Kf5 e6 Re8 Ke2 Kg4 Nf3 Re7 Re1 h1Q Nfd2 Kh4 Rc1 Qe1+ Kf3 Re8 Nc4 Qc3 Nbd2 Re7 Rab1 a1Q Rb3 Na2 Nb1 Qb4 Be5 Qd6 Re1 Qc3 Re3 Qcb4 Qb2 Rh2 Bc2 Kh3 Bd3 Re8 e7 Rh1 Bc2 Kh2 Ra3 Kg1 Reb3 Kf1 Kg4 Rh3 Kf3 Rd8 e8Q Rc8 Kg4 Rc5 Kf5 g4 Qa8 Bd2 Qc6 Bc3 Kf4 Be1 Ncb6 Rc3 Nc4 Re3 Bd3+ Kg1 Qe2 Bc3 Bc2 Bd2 Qh2+ Kf1 Qcb6 Nf2 Bg6 Ne4 Qc6 Rf3+
1N2r3/b2rqK1N/4nBnk/2b5/2n3bN/3qRb2/BQb3R1/1Qrr1BrQ w - - 0 1 illegal: No possible last move, all moves rejected
1Rr1q2N/Q1r1N3/1K2B3/1b1rrr1n/B1k2n1n/2B1q1b1/2q1RQRQ/b6q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 d5 c4 f5 h5 b5 e5 g5 e6 f3 h6 b3 e7 b4 e8R g3+ Ke1 g4 Kd2 b2 Kd3 b3 a5 f4 h7 g2 a6 f2 a7 f3 Re6 g3 Re3 Nh6 Nd2 b1N Ne2 g1Q Re8 b2 Nf4 g2 Ra4 Bg7 Rh3 Nf5 Ra2 Nh4 Qa4 Nc3 Rg8 b1R Qd7 Rb7 Rc2 Rc7 Qg4 Bd7 Nb1 Ne2 Rh2 Bb5 Rh1 Nd7 Rh2 Rac8 a8Q Qe8 Bb2 Nf6 Nc3 Nh5 Qg3 Bf6 Ng6 Nef4+ Kd2 d3 Qa7+ Kb4 c5 d4 c6 Kc4 Rf8 Rg8 Nh8 Rg5 Rg8 Re5 Nd5+ Kb3 Be2 f1Q Bc3 f2 Ne7 Kc4 Bd1 Qh1 Qe3 g1B Rhg2 Bh2 Ra2 Qfg1 Ba4 f1R Qf2 Bg3 Rc2 Rfe1 Rb2 Rf5 Rc2 Rd7 c7 Ree5 Ra2 Ra8 c8B Rc7 Nhg6 Rb8 h8Q Ra8 Bd7 Rac8 Qh7 Bg7 Nh8 Bf6 Ra1 Bg7 Re1 Bf6 Re2 Bg7 Qf1 Qe3+ Kd1 d2 Qg6 Bh2 Kc2 d1R Ba5 Qd8 Rg1 Re4 Qgg2 Ra8 Qff2 Bg3 Qh2 Rb8 Kb2 d3+ Ka3 Ba1 Rg2 d2+ Bc3 Ree5 Bc8 Qd7 Rd8 Qe8 Bd7 Kd3 Kb4 Ra8 Ka5 Kc4 Bc8 Rb8 Rd6 Ra8 Rb6 Rb8 Bd7 Rbc8 Rb7 Rc1 Rb6 d1Q Rb8 Qc2 Be6+ Nd5 Nhg6 Rd1 Nh8 Rd4 Bd7 Ndf4 Kb6 Rcc5 Be6+ Rdd5 Bb2 R5c7+ Bd4 Qed2 Bc3 Qe3+
3R1R2/nNbn1n1r/2bnq1q1/1N3rBq/1r1K1Qb1/QR5B/1Bk5/1Nr3r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 h7 d3 Ke3 f4+ Kd2 Kd4 e5 f2 e6 f3 c5 g3 c6 b3 e7 b2 e8R b4 a6 g2 c7 b3 a7 g4 Ra6 g3 Re1 Nd7 Qe2 Qf6 Rd1 Qe6 Rh2 Nh6 Qe1 Bb7 c8N Bd6 Ra3 Rb8 a8Q Nf7 Na7 Bc6 Nc8 Bc7 Rh3 Rb4 Nc3 b1R Ne7 b2 Be2 f1R Ra5 f2 Ra1 Kc4 Na2 Kb3 Qa6 d4 Nf3 g1Q Qa5 g2 Nc8 Qh1 Nc3 g1R Rg3 Qh5 Nd6 Qhg6 Ra4 Ra1 Qa8 b1Q Qf8 Qh5 Ra8 Ra5 Rc8 Rf5 Qe7 Qeg6 Nb7 Qa2+ Bb2 Qa6 Ra8 Qc4 Nb5 Qce6 Kc1 d2+ Kb1 d3 Rf8 Rg8 h8B Rg7 Qh4 Rh7 Bhf6 Bb6 Bg5 Bc7 Ka1 Kc2 Qe4 Rd4 Qf4 Rb4 Rb1 d1N Nd2 Ne3 Bg4 Nc4 Qee3 Rc1 Bh3 f1B Qa7 Be2 Qa3 Bg4 Ka2 Rcf1 Rd1 Re1 Nb1 d2 Rb3 Ref1 Re1 d1N Re4 Re1 Rd4 Nc3+ Ka1 Rc1 Rd6 Nf6 Rdd8 Nd7 N5d6 Nd5 Bh8 Ne7 Nb5 Nc8 Bhf6 Kd1 Bd4 Ne3 Kb2 Na7 Bh8 Nc2 Kc3 Ne3+ Kd3 Nc4 Bd4 Ba5 Bb2 Bc7 Kd4 Kc2 Rc8 Nd8 Ra8 Nf7 Rad8 Ncd6+
2b5/r1NBnknB/1QnK3b/n1NR4/r1N2B1R/8/1nb1bb1R/r1qQ1n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 d3 c5 b3 a5 b2 c6 g3+ Kf3 b4 e5 g4+ Kg2 b3 a6 d4 c7 d2 e6 d3 e7 Nc6 h5 Rh7 h6 Kf7 e8N Qg5 a7 Nge7 Be2 f3+ Kf1 f4 Ra6 f2 Kg2 f1N Rh4 f3+ Kh1 f2 Kg2 Ne3+ Kh1 f1N Ra5 N3f5 Kg2 Ng7 Na3 b1N Nc4 b2 Rd5 Na3 Nf3 b1B Nd4 Bc2 Nb3 Qf4 Nc5 Qg5 Qe1 d1N Bf4 d2 Bd3 Nb2 Qe3 d1B Qf3 Bd7 c8B Be2 Nc7 Be6 Bd7 Bf5 Kg1 g2 Kf2 g1B+ Kg2 g3 Qg4 Rd8 a8Q Bf2 Qa6 Ra8 Qb6 Ra4 Kh3 g2 Be4 Rh8 h7 g1R Bd3 Rg8 h8R Be6 Bh7 Rh1+ Bh2 Qc1 Kg2 Ra7 Qd4 B6g4 Bf4 Bgf5 Qd1 Ra4 Ne3 Nac4 Rh2 N4a5 Nc4 Bed3 Kf3 Bh3 Bd2 Be2+ Kf4 Rg1 Bd3 Rh1 Rh4 Rh8 Ke4 Rh7 Bh6 Nb8 Ke5 Nbc6+ Kd6 Rg1 Bf4 Be6 Bc8 B6g4 Ba6 Bc8 Bb5 Ne6 Rd4 Ra1 Qd2 Kg7 Qd1 Ne5 Be3 Rg4 N7a6 Rf4 Be8 Ne5c6 Rd5 Kg8 Nd2 Rfa4 Bf5 Bh6 Nc4 Ng6 Bf4 Ra7 Bd7 Nge7 Nc7 Ng7 Bh7+ Kf7
4r2q/knq1N3/1b1Q1RR1/2rQ1nn1/1K3n2/q1B3bb/2Rnq1B1/1B2Nn1Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 c4 b5 e4 f5 h4 d5 a4 Kd7 e5 Kc7 c5 Kb7 a5 b3 c6+ Ka7 a6 b4 c7 d3 e6 b2 e7 b3 Kc3 d2 e8Q d4+ Kc4 f3 h5 g3 h6 d3 h7 g4 Qc2 d1Q Nh3 f2 Be2 f1N Qf7 g2 Qg6 g1N Qd2 g3 Qe8 f4 Bh5 f3 Qf4 f2 Ra2 d2 Qe6 g2 Qd7 Nf6 Ra5 Bd6 Qdg4 Nd5 Qff3 Ng3 Be8 f1N Na3 b1Q Qgf4 b2 Bg6 Nd7 Nc2 Qa1 Ne1 b1N Bb2 Qa3 Bc3 Re8 h8Q Qc2 Qfd4+ Nc5 Nf4 d1Q Rh6 Bd7 c8R Nh3 Bd3 g1B Ng6 Be3 Ne7 Qde2 Rg6 Ndf4 Qfd5 Ng5 Qhh1 Nf5 Qf6 Be5 Qfd6 Nb7 Rc6 Bc8 Rac5 Nbd2+ Kb5 Bf2 Rc4 Qcc1 Bb1 Bg3 Rb6 Bd4 Rc6 Qc7 Rf6 Qa1 Kb4 Bb6 R4c5 Ng7 Rg6 Bh3 Rc4 Rac8 Rf6 Ka8 a7 Nf5 R4c5 Nd8 Rg6 Kb7 a8B+ Ka7 Bf6 Qae5 Rc2 Nb7 Bg7 Qf6 Bh8 Qf8 Bc3 Qg7 Qd7 Qh8 Rcf6 Qd8 Q7e6 Rc5 Qed6 Qc7 Q5e6 Na5 Bg2 Nb7 Qed5 Qa3+
r1k1br1n/7N/RQ1R3Q/1rb1bN1Q/r3nR2/8/4nBqn/BK1Brr1q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 c4 g5 Kc2 f5 a4 d5 h4 Kd7 e4 b3+ Kb2 d3 e5 f3 h5 b4 h6 f2 h7 g3 c5 g4 a5 d4 a6 f4 a7 f3 Rh3 d2 Bb5+ Nc6 Qe2 d1Q Nc3 f1R Ba4 g2 Qa6 g3 Qb6 d3 Bg5 d2 Bf4 f2 Bb5 Qg5 Qb8 Nf6 Ra4 Ne4 Nce2 Bg7 Nf3 g1B Rh6 g2 Bg3 Rf8 h8B Qe1 Ba6 d1R Ned4 Nd8 Be2 Ra1 Nf5 Nf7 c6+ Kd8 Qb5 Bd7 c7+ Kc8 Bd1 Be8 Qb6 Qg4 Ra6 Ra4 Kb1 b2 e6 Be5 e7 Qg8 Bf6 Nh8 Ng5 Qg7 Nh7 Qg6 Kc2 b1R Bg7 Qg4 Rd6 Rb2+ Kc1 b3 Bf6 Re2 Kb1 b2 Bg7 Qh3 Bh4 Qh1 Bg3 Qd2 Bf6 Rb8 a8Q Ree1 Qac6 Ra8 Qc1 Qe2 Qh6 Qf3 Kc2 b1R Bgh4 Beh2 Ba1 Rb5 Kc1 Be5 Bg3 Bh2 Bh4 g1N Bg3 Rd5 Kb1 Ne2 Bh4 Bhf4 Bg3 Qfg2 Bh4 Bb5 Bg3 Bg5 e8Q+ Bd8 Qeh5 Be8 Bh4 Be7 Bg3 Rg1 Bh4 f1N Bf2 Nh2 Rf6 Kd7 c8R Rgf1 Rc4 Bc5 Rd6+ Kc8 Rb4 N4g3 Rf4 Ne4 Qf6 Ba3 Qfh6 Rb5+ Kc2 Bb4 Kb1 Bc5+
2RN2qk/4KBr1/1b4QB/1Rr3nr/8/1qb2b2/RQnrrrQ1/2NN1n1n w - - 0 1 legal: proof: e4 d5 c4 dxc4 h4 f5 b4 fxe4 b5 g5 b6 gxh4 Qe2 axb6 Qf3 b5 Qd1 b4 Ke2 Kf7 Ke3 Kg7 Kf4 h5 Ke5 b5 a4 c5 d4 c3 f4 c2 g4 e3 g5 c4 f5 b3 g6 h3 a5 b2 a6 b4 a7 h2 d5 h4 d6 h3 d7 b3 Ke6 c3 Nd2 b1R Bb5 b2 Bc4 e2 Ndf3 e1B Bf1 Bb7 Bg5 c1R Bg2 c2 Nd4 Nf6 Ra3 Ne4 Rc3 Nc6 Ndf3 Nd4+ Ke5 Rh5 f6+ Kh8 Qd3 Rd1 f7 c1R Kf4 e5+ Kg4 Bf2 Rc8 Bb4 Ne2 Rd2 Nfg1 Rc4 Bf4 Nc2 Nc3 Rf1 Bh6 b1Q Nge2 Bb6 Bf3 Qe8 d8N Rc5 Qd5 Rb8 a8R Ng5 Kf5 e4 Kf6 Rf2 Ra2 e3 Rc1 h1N Nd1 h2 Nc6 Ba8 Nd8 Ng3 Qe5 Qb2 Rb1 h1N Nc1 Nf1 g7+ Kh7 f8Q e2 Qc3 e1R Qd6 Ne6 Qg3 Rb7 Qg2 Ree2 Qe5 Qc3 Rbb2 B4a5 Rb5 Qb3 Qb2 Qh8 Bf4 Rbc7 Bd5 Kg8 Bc4 Bf3 Bh6 Kh7 Bd5 Ng5 Bc4 Ne4+ Ke6 Bc3 Bd5 Ng5+ Kd6 Kg6 g8Q+ Qg7 Qe8+ Kh7 Qe4+ Kh8 Qg6 Bd4 Bc4 Qg8 Be6 Rg7 Bf7 Be5+ Ke7 Bc3+
1N1nQQ2/3B3n/R1br3b/K1b1B1nB/n1kn1n1r/1q1rq3/1bN5/1Q2R2N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 c4 Ke6 e4 g5 a4 f5 h4 d5 a5 b5 h5 f3 h6 d3 c5 f4 e5 b3 Kc3 f2 Kb4 b2 a6 d4 a7 Kd5 h7 d2 e6 g3 e7 d3 e8N g2 Na3 b1N Rh2 g4 Qe2 d1R Qd2 g3 Rh6 f3 Qe2 d2 Nc2 Qb6 Rf6 Na3 Ra2 Nc6+ Kc3 b4+ Kb3 Bb7 Ka4 b3 Nd6 b2 Rf4 b1N Qb5 Bh6 Ne1 Nc2 Nc8 Nd8 Nd3 Nd4 Rf6 Bc6 Re6 Nf6 Re3 Nc3+ Kb4 Na4 Ne2 g1B Bb2 g2 Ne1 Bh2 Re6 g1B Nc2 Be5 Ng3 Rb8 Bg2 f1N a8Q Ne3 Na7 Rb7 Ba1 Rd7 Nh1 Rd6 Bh3 f2 Bg4 f1Q Bh5 Qf3 Qc8 Qb8 Ka5 Ng2 Qb1 Qe3 Qd7 Qb7 Qe8 Qbb3 Re7 Nf4 Ra3 Ba8 c6 Kc4 c7 Bc6 c8B Rg8 h8Q Nh7 Qb2 Rg4 Bd7 Rh4 Qb1 Nf3 Rg7 Ba8 Rg8 Nc5 Nf2 Ne4 Qg7 Qe1 Nh1 Bc5 Qgf8 Qee3 Rg1 Neg5 Nc6 Bh8 Nb8 Bc6 Bf6 B8g7 Re1 Bh8 Be7 Bb2 Ka6 Nd4 Ra5 Rc1 Ra2 d1N Bf6 Nc3 Be5 Rd1 Ra5 Bb4 Kb6 Rd3 Ra6 Bc5+ Ka5 Na4
1Brb3R/Q2nb1NN/1r2R3/1qn2Q1B/2Rqn1b1/Kn2Q3/1b4k1/2rBr2b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 Kb2 b5 a4 f5 h4 d5 h5 d3 h6 b3 a5 b4 h7 g3 a6 g4 c5 g2 a7 g3 c6 f3 c7 d4 Qe2 d2 Nh3 d1B Na3 g1B Qe3 f2 Qe1 d3 Bg5 g2 Ra2 d2 Be3 f4 Bc4 f1Q Bc5 f3 Be2 f2 Nb1 Nf6 Bc4 Na6 Rh2 Qd4+ Nc3 Bdg4 Bf7 d1R Be6 Qb5 Ra4 f1N Bf7 Rc1 Bc4 Bb7 c8Q Nd2 Qe3 Be7 Nf4 Nd7 Rh6 Rb8 a8Q Rg8 Ba7 Nac5 h8R Bc6 Be6 Rb6 Nh5 Bh2 Bf7 g1B Qf8 Bg3 Rf6 Bh4 Ng7 Bd8 Rfh6 Bhe7 Bh5 Bf2 Rg6 Bfh4 Rd6 Bhf6 Bb8 Bd5 Qa7 Bb7 Qe2 Kf4 e5 Kg3 e6 Bh1 Qe3+ Kg2 Qf7 Be5 Qf5 Nde4 Rc6 Bdc7 Rd6 Rc8 Rc6 Bcd8 Rd6 Bf8 e7 Re1 e8B Bfe7 Re6 Rc1 Ra1 Re1 Rc1 B5f6 Ka1 b2+ Ka2 b1R Nd5 b3+ Ka3 b2 Rc4 Rbc1 Bef7 Be5 Nf6 b1N+ Ka2 Nbd2 Ka3 Ndb3 Nh7 Bh3 Bd1 Bg4 Bh5 Qd6 Rh6 Bc3 Rg6 Qd4 Re6 Bb2+
3k2NQ/2bbn1NQ/3R3R/1q2bnn1/1rQrr1r1/4bqN1/n5BB/3nKR2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 d5 c4 g5 h4 b5 a4 f5 e5 b3 e6 d3 a5 g3 c5 d2+ Ke2 g4 a6 d4 a7 b4 c6 g2 c7 b2 h5 g3 h6 d3+ Kf3 b3 e7 Bg7 h7 Nc6 Ra4 Nh6 Rh2 Qd5+ Re4 Bd7 c8N Be5 Rh1 Qb5 Nc3 b1R Nd5 b2 Qa4 d1R Nb4 d2 Nd5 Nf7 Ne3 Rg8 Qb4 Rg4 Nh3 g1B Qc4 g2 Ke2 f3+ Kd3 f4 Rd4 f2 Ke2 Ng5 Rd3 Bh2 Nf5 g1B Bg2 f1N Nf2 Ne3 Ne4 Bc7 Rd6 f3+ Kd3 f2 Ke2 Bf4 Rhh6 Be5 Neg3 Rb8 a8R Rb6 Nd4 Nf5 Ra1 Ra6 Ne6 Ra4 Nf8 Rb4 h8Q Ra4 Qh7 Re1+ Kd3 d1N Kd2 Ree4 Ne6 Rd4+ Ke2 Rde4+ Be3 f1Q+ Kd2 Qf3 Bf4 Be3+ Ke1 Rc1 Rb1 Rc3 Rc1 Rd3 Rb1 Rd5 Rc1 b1N Ng7+ Kf7 Bh3 Rb4 Bg2 Nbc3 Rb1 Na2 Ra1 Ne6 Rc1 Rg6 e8Q+ Kf6 Ra1 Nce7 Qeh8 Rdd4 Rc1 Kf7 Rb1 Rg4 Rc1 Nd5 Ne7 Ng5 Ng8 Kf8 Nh1 Nde7 Bh2 Bb8 Ng3 Bc7 Ne6+ Ke8 Ng7+ Kd8 Rc2 Qa5 Rf2 Qa4 Rf1 Qb5
1brQN1B1/qq2R2R/2qq1rk1/B2r1Nnr/1Bb5/1bN1Q3/3bqK1n/Q7 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 d5 c4 g5 h4 b5 a4 f5 e5 Kf7 h5 f3 h6 g3 c5 g2 a5 d3 e6+ Kg6 c6 b3 h7 d2+ Kf2 d4 c7 d3 a6 g4 e7 f4 e8N b4 a7 b2 Nc3 b1Q Na4 b3 Nc3 b2 Ng7 Na6 Qe2 d1Q Nb5 d2 Nh3 Bd6 Rg1 Nh6 Rh1 Qbc2 Qe5 b1Q Ng1 Be6 c8Q Bb8 Nf5 Qc6 Qe3 Qdd6 Qb3 Nc7 Qe3 Bb3 Qe7 Ne6 Be2 Ng5 Qcb7 Qdc2 Nh3 d1R Qbd7 Rd5 Nc7 g1B+ Ke1 g3 Qdd8 g2 Nf2 Qd3 Ne4 Be3 Ne8 Ng4 Nc3 g1Q+ Bf1 Qb2 Bd2 Nh2 Ra4 Qdb5 Re4 Qbb7 Qe5 f2+ Ke2 Rf8 h8B Rf6 Bg7 Qc2 Bf8 Qa2 Bh3 f1R Qd4 Qc2 Re7 Qe4 Be1 Bd2+ Qe3 Rf3 Bf1 Rh3 Bg2 Rh5 Bf3 Qg4 Kf2 Qd4 Be2 f3 Bc4 Rb5 Bg8 Rd5 Rg1 Qge4 Rg4 Qed3 Rge4 Qda6 Rh7 Qa2 Ree7 Qda4 Kg1 f2+ Kg2 f1B+ Kg1 Bc7 Kf2 Rc8 a8Q Qe4 Qa3 Bb8 Qc1 Qaa3 Qa1 Bfc4 Na4 Bc1 Ba5 Bd2 Nc3 Qac5 Ref7 Qca7 Be7 Qde6 Beb4 Qed6 Rd7 Qd3 Rde7 Qe2+
2b3Q1/2B1N1RQ/1r1b2rb/4bRNn/q1B3k1/N1q2rqr/q2RKq2/n1B5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 c4 Kf6 a4 Kg5 h3 b5 e5 f5 e6 d5 a5 g3 c5 b3 e7 b4 e8N d3 a6 d4 c6 b2 a7 d2+ Ke2 g2 h4+ Kg4 c7 g5 h5 f3+ Kd3 b3 h6 f4 h7 Nf6 Ne2 g1B Ng7 f2 Ra2 f3 Ne6 Bh6 Ra5 Bh2 Ng7 Nc6 Ng3 Qd6 Qc2 d1Q+ Qd2 Qe1 Qc3 Nb4+ Kc4 d3 Bd2 Nh5 Ne6 Nc2 Qg7 Na1 Bc3 d2 Rc5 d1Q Ne4 Qg3 Na3 b1Q Rf5 b2 Bd2 Qa2+ Kd3 b1R Rg1 Qa4 Nd8 Rb6 Bc1 Rg6 Qf7 Rb8 a8R Rbb6 Nc6 Qea5 Be2 f1Q Ne7 Qae1 Raa5 Qff2 Rac5 Qeb4 Rc2 Qbb2 Kd2 Qc3+ Kd1 Qfg2 Bc4 f2 Ke2 f1R+ Rf2 Ng7 Rd2 Nh5 Rh1 Qg1 Rf5 Rf3 Qg7 Qd6 Qg8 Be5 Qf7 Qg3 Rg1 Qc5 Rg2 Rd8 h8B Rdd3 Qh7 Bd6 Bb3 Qf2+ Kd1 Kh3 Nc2 g4 Bb2 Rg8 Bf7 Qf4 Re5 Ba3 Nf5 g3 Bd5 Be6 c8Q Rfe3 Bc4 Rg4 Rg1 g2 Qcg8 Bc8 Bc1 Reg3 Rc5 Rdf3 Ne7 Kh4 Be5 Rh3 Rcd5 Bb4 Bc7 Bd6 Rf5 Rg5 Rf1 g1B Re1 Bh2 Rg1 Qg4 Rg2 Bhe5 Rg1 Qa7 Na3 Qf4 Rg2 Rg7 Rg6 Q4g3 Ng5 Qa8 Qhh8 Kg4 Qhh7 Qfd4 Ke2 Qa4 Rgf6 Qc5 Rf7 Rg6 Rg7 Qcf2#
1bN1nq2/qR1K1NQ1/4bb2/b3BB1b/4n3/1QN1kr1R/3bbnb1/1R3r1Q w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 b3 a7 e2 f6 e1B f7 b2 h6 e4+ Ke2 g2 c3 g4 h7 d3+ Ke3 g3 Kf4 d2 Kf5 e3 c4+ Kd4 c5 d5+ Kg6 b4 c6 e2 c7 b3 Nf3+ Ke3 Rg1 d4 Ng5 d3 Ra2 Be7 f8N Nf6 Kf7 Ne8 Nd7 Rf8+ Ke6 Na6 h8Q Bf6 Nf3 Nc5+ Kd5 Ne4 Na3 b1B Kc6 b2 Rh1 g1Q Rh5 g2 Nb6 Be6 c8R Rb8 Nd7 Rb3 a8Q Bc2 Rh4 b1B Rc7 Bg3 Rh7 e1B Rb7 Bb8 Nb6 Qf2 Qa4 g1B Ne5 Rf7 Qh5 Bd1 Ra1 Be2 Bb2 d1B Qg7 Ba5 Nb5 d2 Qh1 Qe7 Bg2 Qf8 Nc8 Bh2 Bc3 Bf4 Bh3 Bh5 Rh6 Bde2 Bf5 d1N Qa3 Bbd3 Rb1 Bef3 Bb2 Bg2 Nc3 Bde2 Qa4 Ra3 Qb3 Qg1 Rh7 Ndf2 Rh8 Rd7 Nf7 Rd1 Rh6 Rf1 Rg6 Kd4 Rg3 Bd2 Rh3 Ra4 Rh2 Ke3 Ba1 Rd4 Bb2 Rd3 Rh3+ Kf4 Ba1 Rf3 Bb2 Ke3 Ba1 B6c4 Kd7 Bd5 Bb2 Be6+ Kc6 Nd3 Na2 Kf4 Ba1 Qa7 Be5+ Ke3 Nc3 Bc4 Kd7 Ndf2 Nh6 Bd5 Nf7 Be6+
1b1BQqnn/1r1nnB2/2q1R1Q1/1k1b1rN1/r4b2/qNB2K2/6rN/1b4RR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc6 c4 g5 a4 b5 h5 f5 a5 d3 a6 d4 e5 b3 e6 b4 c5 g3+ Kf3 g2 a7 d2 e7 b2 e8N g4+ Kf2 f3 h6 f4 h7 d3 Na3 b1R Nd6 b3 Rh2 b2 Ndb5 Qd6 Qb3 d1N+ Ke1 g3 Qc3 f2+ Kd2 f3 Qg7 Ne3 Qg5 Be6 Ra2 Nd5 Nc3 Nd7 Rh3 Bh6 Na4 Nde7 Ke3 d2 Bd3 f1R Be2 d1Q Ra1 f2 Bh5 Qb3+ Nc3 Re8 a8R Bd5 Nf3 g1B Nc2 g2 Bf7 Qa3 Rh1 Bh2 Ra5 Bg3 Nh2 g1N Ra7 Nh3 Ra6+ Nb6 Bd2 Nf4 Qg6 Rg1 Bc1 f1Q Bd2 Rg2 Nd4+ Kb7 Nb3 Kc6 Ne4 Kb5 c6 Nd7 c7 Qc6 c8Q Rf8 Qe6 Nfg6+ Ng5 Bb8 Ba5 Qf6 Qe8 Re1+ Kd3 Re4 Bd8 Qf4 Rag1 Qf6 Nh3 Bhf4 Qg4 Qfd6 Ng5 Qdc5 Be6 Rf5 Bf7 Qf6 Rd6 Qc6 Re6 Qg7 Qg3 Qf8 Qg4 Nh6 Qg3 Rg8 h8B Rg7 Qg4 Nhg8 Qh5 Rh7 Bc3 Nh8 Qg6 Bd2 Kc2 b1B+ Kd1 Be3 Ke1 Bef4+ Kf1 Rg3 Kf2 Rg2+ Kf3 Rh6 Re5 Qca8 Qh7 Rb6 Qh6 Qc6 Qg6 Rb7 Re6 Ra4+
R1N1B3/K2npr2/1R2r1R1/q4Q2/br6/B1q1bnn1/1b1NBqN1/r3Qrk1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 a4 Kf5 f4 d5 g3 h5 c5 b5 c6 h3 c7 b3 a5 b4 a6 h2 a7 d3 Ke3 b2 Kd4 e3 Kc5 Ke4 Kb6 d2 g4 b3 f5 h4 f6 e2 g5 Ke3 g6 Kf2 g7 e1B f7 d4 Bh3 d3 Ra3 Nf6 g8B Nh5 Bg4 h3 Ra5 Bd7 Rg5 Bg7 f8N Rh6+ Kb7 Re6 c8R Ng3 Qc2 Qa5 Qc3 d1R Rh5 d2 Rh8 Ba4 Bf7 Nd7 Na3 b1R Rh6 b2 Nb5 Ra1 Qb4 b1N Ng6 Bb2 Nh4 Kf1 Re8 Bf2 Ng2 Be3 Nd6 Rc8 a8Q Rc4 Qc5 Rb4+ Qb5+ Kf2 Be2 Rf1 Rg6 d1R Nc8 Nd2 Nf3 Rde1 Rg1 h1Q Qa6 Rf6 Qe6 h2 Qe4 Rf4 Rb6 Rf5 Rd8 Rf4 Be8 Rf7 Ng5 Nf3 Qbf5 Bc3 Ba3 Bb2 Nh4 Qg2 Qee6 Qc5 Ka7 h1Q Qee5 Qgh3 Ng2 Qh8 Qee6 Q1h4 Qee4 Qhc3 Qee6 Qf4 Qee4 Nh2 Nf3 Qg5 Nd2+ Nf3 Rh1 Qgf6 Rh6 Kg1 Rg6 Qg5 Nd6 Qh5 Ra8 Qh2 Nc8 Qb5 Nh4 Qf2 Ng2 Qa5+ Ba6 Bf4 Qb1 Re6 Qe1 Qd5 Bd3 Be3 Be2 Qa5+
n1B5/B1pn2k1/3rb3/N3R1qq/r3QNN1/qbRR1Q2/rrQn3K/2b1r3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 b5 a4 h5 g4 f5 Kg2 Kf7 e4 h3+ Kh2 c3 d4 c2 a5 b3 g5 b4 e5 f3 g6+ Kg7 e6 b2 e7 f2 e8Q b3 d5 h4 a6 f4 a7 f3 d6 Nf6 d7 Rh6 Ne2 Nd5 Bg2 f1B Nf4 f2 Qd3 Nb6 Rg1 Qg5 d8N Be6 Kh1 h2 Bb7 Ba3 Qf5 N8d7 Nf7 Bfc4 Re1 f1N Be3 c1Q Nd2 b1R Bc8 b2 Qc2 Bb3 Nc4 Nd2 Ra2 Ra1 Nfe5 b1R Ng4 Bb2 Ra3 Ra2 Kg2 h1R Na5 Rf1 Kh2 h3 Bf2 Rg1 Re5 Re1 Bc5 Bbd5 Rd3 Bb3 Rc3 Ba3 Bg1 Qb2 Rd3 Qc3 Bf2 Bc1 Bd4 Rbb2 Qf7+ Kh8 g7+ Kh7 Be3 Qb4 Qe8 Qa3 g8R Rg6 Rf8 Kg7 Rff5 Rf6 Rc5 Rh6 Rcc3 Rg6 Re5 Rf6 Kg3 h2 Qh5 h1Q Qh7+ Kf8 Qe4 Qhh5 Bg1 Kg7 Bc5 Rb8 a8Q Rg6 Qab7 Na8 Ba7 Rh6 Qbc6 Rb4 Qf3 Ra4 Qce4 Bf5 Kg2 Rd6 Kg3 Bfe6 Kg2 Qf7 Kh2 Qfh5+
k1b2q2/p1Q1qb2/n1N5/3b1R1B/B1r4b/1rB2R1K/2nN1Q2/Q1r1nbqR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ba6 g4 h5 Kg2 f5 b4 d5 c4 Kd7 e4 Kc7 g5 Kb7 c5 h3+ Kh2 f3 e5 f2 g6 d3 b5 d2 g7 a3 b6 f4 e6 f3 e7 a2 e8Q h4 Qb3 d1B Qc4 d4 Bf4 d3 Qd4 d2 Qb2 Nh6 g8B Bb3 Bfc4 d1R Bb5 f1Q Ba4 f2 Bc7 Nf7 Qc1 Ne5 Ne2 Be7 Rg1 Nd3 Qd2 Qe1 Qh5 Qf8 Rf1 Rh6 Bg3 Rc6 Qe5 Rc8 Bh7 Bf7 Nd4 Bg5 Qh8 Qee7 Bg6 Re1 Bh5 Re4 Kh1 h2 Kg2 h1B+ Kh2 h3 Be5 Bh4 Qe3 Bg8 Nd2 Bf7 Rac1 a1N Qf4 Rc7 c6+ Kc8 Rc3 Ne1 Rg1 f1B Qf2 Rb7 c7 Rf4 Rcg3 Bf3 Rg5 B3d5 Rf5 Rg4 N4b3 Rb4 Na5 Rb1 Bb2 Nac2 Qc3 Rc1 Qa3 Bf6 Qa1 Bg5 Kg3 h2 Bd4 h1Q Rf3 Bc6 Bc3 Bh4+ Kg4 Qh2 Rh1 Qg1+ Qg2 Kd7 c8Q+ Kd6 Kh3 Rc7 Qg4 Bc8 b7 Na6 b8R Kc5 Rb6 Rb8 Qd7 Ba8 Rd6 Bad5 Rdf6 Rb3 R6f5 Kb6 Qd6+ Rc6 Qe5 Rc4 Nc6 Kb7 Qg3 Be2 Qc7+ Ka8 Qf2 Bf1+
5n2/pB2n1B1/5qn1/N1k2N2/K2n4/R1b2Nrr/Qb4BR/nqQb1Qrq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 c4 Kd6 Kc2 f5 e4 h5 g4 h3 b4 a3 Kb3 a2 b5 h2 g5 f3 b6 h4 b7 f2 g6 f4 e5+ Kc5 g7 d5 e6 d3 e7 d4 e8Q f3 Nh3 d2 Qee1 d3 Nc3 Ne7 g8Q Nd7 b8N Bg7 Qc2 d1N Qh7 d2 Ka3 Ng6 Rg1 h1Q Ka4 Qf6 Qce4 Ne3 Qg8 d1N Rg3 Nc2 Qd3 Ndf8 Be3+ Nd4 Ne2 Bg4 Bd2 Ne3 Bc3 Nec2 Nhg1 h3 Nc6 h2 Bg2 f1Q Qc1 f2 Na5 Rh3 Nf3 Bh8 Rb1 a1B Rb2 Bh5 Ra2 Bb2 Qdd1 Qfg1 Qf1 Na1 Ra3 Rb8 Rg4 Rg3 Rh4 Rb3 Qf7 Rh3 Ng3 Bg7 Nf5 Rg3 Qfe1 f1N Qf2 Ne3 Qff1 Nd5 Qg8 Kb6 Rh3 Nde7 c5+ Kc7 c6 Kb6 c7 Kc5 c8B Bh8 Ne5 Bd1 Bcb7 Bg7 Qe2 Qe1 Qf1 Qe4 Nf3 Qb1 Bd2+ Bc3 Bh6 Bh8 Qd2 Bb2 Bg7 Re3+ Qc2+ Bc3 Qa2 Re1 Qa6 Rg1 Qf1 Qg5 Nc6 Nde6 Qcb3 Bb2 Bh6 Bhc3 Na5 Nd4 Rh5 Qh4 Qc2 Qf6 Bh3 Qg2 Bg7 h1R Rh4 Nab3 Qc1 Rh2 Rh5 Qh1 Bg2 Rh4 Rg5 Rh6 Rh5 Rh7 Rh2 Rhh3 Qd2 Na1+ Qc2 Ndb3 Qc1 Nd4+
2qB2r1/2n1Bpq1/kbq2nR1/1N3brN/3nN3/n1R1nK2/Q3B1R1/Q2n3n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 h4 d5 c4 Kd7 e4 Kc6 e5 Kb6 c5+ Ka6 a5 f3 c6 d3 h5 b3 c7 g3+ Ke3 g2 e6 d2 h6 d4+ Ke4 b2 h7 f2 e7 g4 e8R d3 Rh2 b4 Qc2 d1N Ra2 g3 Bh6 b3 Nf3 g1Q Ra1 g2 Nc3 b1Q Ng5 b2 Ne6 Bc5 Be2 f1N Ra3 Nf6+ Kf3 Qc1 Nb5 b1N Nf4 d2 Rg8 Nf2 Rg6 d1N Bg5 Bf5 c8N Rg8 h8B Bb6 Ncd6 Qc8 Nh5 Nfe3 Ne4 Nh1 Rc3 Na3 Qa2 Ra7 Bg7 Re7 Bf8 Re5 Be7 Qc2 Rc7 Qc6 Bd8 Bd7 Bh4 Rg5 Qa1 Bf5 Be7 Qd5 Rc3 Qdc6 Qa2 Kb7 Bd8 Na6 Be7 Nc7 a6+ Kb8 a7+ Kb7 Rh3 Ka6 Rg3 Qh2 Rg4 Qhd6 Bd8 Qf8 Qa1 Qg7 a8Q+ Ba7 Kf4 g1N Rg2 Nf3 Be7 Nd4 Bd8 Ndc2 Kf3 Q6d7 Qd5 Qc6 Qda2 Bb6 Bf2 Ned5 Bc5 N5e3 Bce7 Nd4+
1Bq4r/1kN1KN1r/4Rq1B/Rb2Q3/1R1n3N/p3Qq2/2B1n1rq/2q1q1bn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 Kd7 e4 Kc7 b4 a5 g4 f5 c5 a3 b5 f3 e5 a4 e6 h3 b6+ Kb7 e7 f4 e8R h4 g5 h2 g6 f2 g7 f3 Re7+ Bd7 Re6 h3 Bg5 a2 Qe1 a3 Re2 Qc8 Qd2 Ne7 g8Q Nec6 Re7 Rh7 Bg2 f1R Qg7 f2 Nf3 Rg1 Nc3 f1Q+ Qe2 Qc1 Rb1 a1Q Nh4 Qe1 Bf1 Rg2 Qge5 Bh6 Bc1 Be3 Rb4 Bg1 Re6 Qb2 Q2e4 Qbf2 Be2 Qf6 Bh6 Be8 Qe3 Bd7 Kc2 d3+ Kb3 d2 Bd1 d4 Kc4 d3 Kd5 Nd4 Kd6 Ne2 Nd5 Nc6 Bc2 d1Q Nc7 Ncd4 c6+ Kb8 b7 d2 Nd5 Qc1 c7+ Ka7 b8B+ Ka6 Q5f4 d1Q Qfe4 Bb5 Qe5 Bf2 Rf1 Bg1 Rf5 h1N Rg5 h2 Rh5 Qe8 c8N Kb7 Nc7 Qdd2 Na7 Qc8 Nc6 Qd3 Rg5 Qdf5 Rh5 Qf3 Nd8+ Kb6 Nf7 Kb7 Rb3 Nf2 Rf5 h1Q Rb4 Qh2 Rh5 Qg7 Ke7 Nh1 Qg3 Qgh8 Rd5 Qg7 Qge5 Qgf6+ Kd6 Qch8 Ba7 Rf8 Bb8 Re8 Rc4 Bc6 Ra5 Bb5 Rb4 Q6f5 Re7 Qc8 Re6 Rd8+ Ke7 Qg7 Rf6 Rdh8 Re6 Qgf6+
Q1nK2BN/rB1R1nrb/3q3q/1rRQ2pk/1Bn1Nb2/2Nq4/5n2/Q1nn4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 f5 h4 Kf7 c5 Kg6 e5 f3 Kg3 f2 c6 f4+ Kg2 g3 Kf3 d3 e6 g2 Kg4 f3 a5 d4 c7 d2 a6 b3 a7 d3 Rh2 b2 Qe2 d1N Ra6 b4 Qc2 b3 Be3 Bd6 Nh3 g1N Rh1 Nd7 e7 Rh7 Rc6 Rg7 Qc1 d2 Bc5 Ne2 Nc3 b1Q Qb2 Nc1 Bc4 f1Q Qa1 f2 Bb4 b2 Rc5 Qbd3 e8Q+ Kh6 h5 b1R Qf7 Bf4 Rg1 Ne7 Qd5 Ba6 Rg3 Qh1 c8B f1N Bb7 Nc8 Nf2 Qe7 Ba2 Qd6 Nfe4 Nf2+ Kf5 d1N Re3 Ne5 Re1 Qb8 Kf6 Nfe3 Re2 N3c4 Rd2 Bb5 Bb3 Ba4 Ba2 Bc2 Ke6 Nf7 Kd7 Nfe5+ Kd8 Qhh3 Ba3 Rb5 Bb4 Kh7 h6 Kg6 h7 Qh6 h8N+ Kh5 Rc7 Bb1 Rd7 Qbd6 Rc2 Rb8 a8Q Ra5 Bc6 Rbb5 Bb7 Ra7 Na4 Nce3 Rc5 N3c4 Nac3 Qd4 Nd2 Bh7 Nde4 Qd3 Qd4 Nd2 Bg8 Ndc4 Qd5 Nf7+
1rk1qbqR/4BBQ1/KQ3q2/2rN1pNb/4R3/2rRQn2/1b1q1q1n/1B2q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 Kd3 d5 a4 Kd7 c4 g5 h4 f3 e4 f2 e5 g3 a5 g2 a6 b3 c5 b2 a7 b4 h5 g4 h6 g3 h7 b3 Qd2 Qf6 Nh3 g1B Qe3 g2 Ra3 Nh6 Be2 f1Q Ra4 Nc6 Ra5 Q1f2 Bh5 Ng4 Qg3 Nh2 Bf3 Rb8 Nc3 b1R a8R b2 Bg5 Rc1 e6+ Kd8 Bd1 b1Q+ Bc2 Qb4 Ra3 Qa4 Qf4 Rg8 Bh4 Rg5 h8Q Bb7 e7+ Kc8 e8B Re5 Qg4+ Rf5 Qe2 Ne5+ Kd2 d3 c6 d4 c7 Be4 Bb1 Bf3 Qg7 Bh5 Nd5 Rc3 Ng5 Qac6 R8a4 Nef3+ Kd1 d2 Qe3 Rc5 Rd3 Rc3 Nf4 Rfc5 Nd5 Qh6 Rb4 f5 Bf7 Qe8 Rc4 Qf6 Rb4 Qg3 Ke2 Bf2 Rb6 g1Q Re6 Qg4 Re4 Qf4 Bg3 Qh4 Bd6 Bg3 Be7 Be5 Nh3 Qgg6 Ng5 Qf4 Rg1 Qh7 Rg4 Qg8 Rh4 Bg4 Rh8 d1Q+ Kf2 Qc1 Ke2 Bh5 Rd1 R3c4 Kd3 Qh4 Rd2 Qce1 Rd1 Qhf2 Rd2 Kb7 c8Q+ Ka8 Qe6 Kb7 Nc3 Kc7 Qb6+ Kc8 Kc2 d3+ Kb3 Bd4 Nd5 Bb2 Rd1 Rc3+ Kb4 Rc7 Ka5 d2 Ka6 R7c5 Rc1 d1Q Rc2 Qd7 Rd2 Qe8 Rd3 Qdd2
r1RB1N2/qp2RB1B/3bnQ2/1Q3n1r/1qN3bq/b4N1k/2Q1Kr2/2rr2r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 c4 Ke6 a4 f5 h4 g5 a5 d5 c5 d3 a6 b3 a7 d4 c6 b2 c7 d2+ Ke2 d3+ Kf2 f3 e5 g3+ Ke3 g2 h5 f4+ Kf2 Kf5 e6 Kg4 h6 Ne7 h7 Nd7 Qb3 d1Q Nc3 b1Q Nge2 g1R Nd4 d2 Na4 Nc5 Qb5 Nf5 e7 Ne6 e8B Ba3 Nc5 Qb4 Bd3 Qda4 Nd7 d1R Bf7 Qa6 Rh6 Qaa5 Rf6 Kh3 Nf8 g4 Bb2 Bd7 c8Q Rc1 Bc3 Rgd1 Be1 g3+ Kf1 f2 Nf3 g2+ Ke2 f1R Bh4 g1B Qc2 Bh2 Rg6 Qab6 Rg8 Rg1 Be7 Rb8 a8N Qa7 Nb6 Ra8 Nc4 Bc8 Be4 Qdd4 Bd8 Qf6 Rb1 Qh4 Rb3 Bg3 Rd3 Bh2 Rd7 Bg3 Re7 Bd7 Nfd2 f3+ Kd3 f2 Ke2 f1R Nf3 Be5 Rg6 Rg8 h8Q Bd6 Qf6 Rh8 Rg8 Rh5 Rh8 Nfg7 Beg6 Nf5 Bh7 Neg7 Bb6 Ne3 Ng6 Bg4 Rc8 Ne6 Nf8 Nf5 Bd8 Rf2#
n3Q3/R1N2n2/NQNbq1qB/bR3bb1/Bnr2n2/1n6/kp1Q2r1/1b2B2K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 a4 Kd5 h4 Kc4 e4+ d3 e5 d5 c3 f5 e6 g5 e7 b5 e8N f3+ Kh2 f4 a5 b3 h5 f2 h6 f3 a6 d4 h7 b2 a7 b4 Bh3 f1Q Qe1 Kb3 c4 d2 c5 d1N c6 d3 c7 d2 Nc3 b1B Ba3 f2 Na4 Nb2 Nc3 d1N Qe6+ Qd5 Qh6 Bcf5 c8Q Nc6 Qd8 Qe6 Qd4 Bd6+ Qe5 Na4 Nd5 Ndb2 Ne7 Nb6 Bg2 Rc8 a8Q Qd3 Bf1 g3+ Kg2 g4 Qd2 Nh6 Qde1 Rg8 h8B Nf7 Qa7 Na8 Be2 f1N Bg7 Nd2 Bh6 Qe4+ Bf3 Nd3 Rh5 Nf4+ Kh1 Rc7 Nh3 g2+ Kg1 Rg6 Nf2 Rg7 Kh2 g1B+ Kh1 g3 Nd3 Be3 Qb6 Qg6 Qea5 Qee6 Qe2 Rc8 Nc7 Rgg8 Bb2 Rg7 Bc3 g2+ Kh2 g1B+ Kh1 Bgf2 Bg4 Be1 Nc5+ Kc2 Qeb5 b3 N5a6 Nb4 Nc6 b2 Bd1+ Kc1 Ba4 Nb3 Bf6 Bc3 Bh4 Bed2 Be1 Bf6 Ncb8 Bg5 Qe8 Bc3 Nd5 Rc4 Ndc7 Nc2 Qd5 Ba5 Nc6 Nb4 Ra3 Ba2 Qdd4 Kb1 Qd2 Bge7 Qdd4 Bd3 Bd2 Qh7 Rb5 Bf5 Nab8 Rg2 Be1 Qhg6 Qe3 Bg5 Qd2 Nd4 Bc2+ Ka1 Qb7 Bb6 Ra7 Ba5 Nba6 Bb1 Qb6 Ka2 Ba4 Nb3
1R1Rn2N/RB2q1q1/1N2r2B/2q3nK/1N4B1/n3qn2/qp2rQQ1/2k1bn1b w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 c4+ Ke4 a4 b5 a5 d5+ Kh5 f5 g4 h3 e3 h2 c5 f3 a6 b3 g5 b4 a7 f2 c6 f4 g6 f3 g7 b2 c7 b3 Ra2 d3 Be2 f1Q Nh3 d4 Ra4 d2 Nf4 f2 Rg1 h1Q+ Nh3 Nc6 Ra5 d3 Ra2 Qfg2 Re1 f1N Ra5 Qhg1 Na3 b1N Qc2 d1N Qb2 d2 Qa1 b2 Nc4 Nd4 Ra2 Bb4 Ra5 Nf6+ Kh4 h5 g8B Rh6 Bf7 Nf2 Ne5 d1Q Nf4 Nh3 Neg6 Qb3 Nh8 Qg7 Rd1 Bb7 c8N Qe7 Nd5 Qa2 Ncb6 Na3 Bg4 Re8 a8Q Ng5 Ra7 Qc5 Bd2 Kd3 e4 Kc2 e5 Qe3 e6 Re7 Qf8 Ne8 Bg8 Bc6 Qf2 Rf6 Qg2 Rf2 Bc1 Re2 Qf2 Be1 Nb4+ Kb3 Bh7 Bh1 Be4 Kc3 Bb7 Kb3 Nc6 Kc2 Bd2 Rf7 e7 Rf6 Bc1 Re6 Rd3 Qee5 Bf4 Qe3 Rb3 Kd2 Rb4 Kc2 Qb1+ Kd2 Qe4 Kc1 Qd5 Nf7 Qg2 Nf3+ Kh3 h4 Bh6 Nf6 e8R Qe7 Rc8 Ne8 Rd8 Qc5 Bh5 N7g5+ Kg4 h3 Rb5 h2 Nb4 Ne5+ Kh4 Qce7 Bg4 Nef3+ Kh5 Q3c5 Ba6 Qce5 Nc4 Q5c7 Qfg3 Qcc5 Qg1 Bg2 Rbb8 h1Q+ Qh4 Qed6 Nb6 Qde7 Bb7 Qh2 Qh1 Qhe5 Qf2 Qee3 Qh2 Bh1 Qhg3 Qed4 Qgg2 Qe3
1BBB2b1/brb2N1n/2b1q2K/1r1n1RN1/6Nk/1pR1bR2/1q1qq1Q1/4qQ2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kf6 e4 Kg5 a4 b5 c5 d5 e5 f5 c6 g3+ Kf3 b3 h3 b4 a5 g2 a6 b2 e6 d3 c7 d2 e7 d4 e8R d3 a7 b3 Re1 Qe7 Ra3 Nf6 Re5 Qe6 Rc5 Rh5 Rd5 Bd7 c8Q Nc6 Rh2 Rb8 a8N Ne7 Ra1 Rb7 Nc7 Bc6 Ne8 Nh7 Na3 b1Q Nd6 Qb2 Nac4 Kh4 Ne5 g5 Qa8 Bh6 Qe2 d1Q Ng4 d2 Nf7 Qe1 Ra5 d1Q Rc5 Qed2 Rc3 Q1e1 Qd1 Bg7 Ba6 Be5 Qe2 Bc7 Qf1 Rb5 Bc8 Rb7 Ne2 g1B Ng3 Bf2 Ne4 Be3 Rf2 Ba7 Rdd3 Nd5 Re3 Qbc2 Ba3 Qb2 Be7 Qee2+ Kg2 Qee1 Rf3 Qee2 Bd8 Be3 Ngf6 g4 Neg5 g3 Ng4 Qee1 Kh1 g2+ Kh2 g1B+ Kg2 Rb5 Qa2 Rh6 Qa8 Rg6 Qa2 Rg7 Qa8 Kh5 h4 Qee2 Kh3 Ba7 Rfd3 f3 Re3 f4 Red3 Kg6 h5+ Kf5 Kh4 Be3 Rg2 f2 h6 f3 Kh5 Ba7 Rh2 Kf4 Re3 Kg3 Re5 Be3 Rf5 Ba7 Qb1 f1Q Rf2 Qfe1 Qd3 Nf8 h7 Be3 h8B Nh7 Qb7 Ba7 Rf1 Bge3 Qa8 f2 Qb1 Ndf6+ Kh6 Kh4 Qd3 Be8 Qg2 Bc6 Nfe5 Rd7 Nf7 Nd5+ Bhf6 Be5 Qb1 Rdb7 Bc7 Bd6 Bb8 Bc7 Rf3 Qe8 Bd8 Qd7 Rg1 f1B Qf5 Qe6+ Qf6 Qc4 Rf5 Bd3 Rgf1 Be4 R1f3 Qce2 R3f4 Bd3 Rf3 Bc4 Nfe5 Qdd3 Rf1 Qe8 R5f4 Nb4 R1f2 Bg8 Nef7 Nd5 Qf5 Qd4 Qd3 Qf3 Qdf1 Qfe2 R2f3 Qdd2 Rf5 Qe6+
1K4Bn/N2b3r/1R1n1k1r/b1B4n/3n1Npq/NR1n4/3qQ2Q/q3QqBq w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 g5 a4 f5 c4 d5 h4 b5 e5 f3 Kg3 b3 a5 b4 a6 b2 c5 f4+ Kf2 b3 c6 d3 h5 g3+ Ke1 f2+ Kd2 g4 Kc3 d2 Kd4 g2 Kc5 d4 h6 f3 c7 d3 Kb6 Nc6 a7 Nd4 h7 Bd7 Kb7 Nh6 c8Q Nf7 e6 Kf6 Rh2 Bb4 e7 Ba5 Nh3 g1Q e8Q Qh1 Na3 b1N Qc5 b2 Qde1 d1N Qc7 d2 Q8e2 Nbc3 Nf4 Ne4 Rh3 b1Q+ Bb2 Rc8 a8N Ned6+ Ka7 Qa2 Rb1 Qa1 Nb6 Qe7 Bc3 Nb2 Bb4 d1Q Bc5 Nd3 Bg2 Rce8 Nc8 f1Q Rb6 f2 Kb8 Qd2 Bd5 Reg8 Be6 Rg6 Rf3 Rh6 Bd5 Rg8 h8B+ Rg7 Be6 Qfg1 Na7 f1N Bc4 Ng3 Re3 Qf1 Be6 Ng5 Bg8 Nh5 Rf3 Nf7 Rg3 Nb2 Rc3 Nd3 Rcb3 Nb5 Bg1 Nd4 Qc2 Qe5 Qh2 Qg5 Qc4 Qh4 Qce6+ Kg5 Q6e2 Rgh7 Bf6+ Kf5 Be7 Nh8 Bf8 Ne8 Bb4 Nd6 Bc5 Kf6
1R2q1Q1/1K3q2/1b1kr1bN/qrr3Q1/2qbQ2B/1q1b4/2N2n1p/2RRnN1B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 f4 Kd7 a4 h5 g4 e5 c4 b5 a5 b3 a6 d3 Ke3 b2 g5 h3 c5 d4+ Kf2 e3+ Kf3 e2 Ke4 e1Q+ Kd5 h2 g6 e4 a7 h4 g7 b4 f5 d2 f6 d3 f7 b3 Ra2 h3 Ra4 e3 Bg2 e2 Qc2 d1Q Rd4 d2 Bf1 Rh6 Nf3 Ba6 Rf4 Bd3 Na3 b1B Ra4 b2 Re4 Re6 Rh4 Nh6 g8Q Qa5 Qg6 Na6 Qg1 Bg7 f8Q Bd4 Qfg8 Rc8 a8R Ng4 Rb8 Nf2 Q1g5 Rc7 Rg1 h1Q Bg2 h2 Rf4 Bg6 Qe4 Qda4 Nc2 d1Q Nd2 Rc8 Nf1 Nb4+ Kc4 Rc7 c6+ Kd6 Rf5 Rc8 c7 Bb6 Rc5 Nbd3+ Nb4 Qe8 Nc2 Qf7 Bd2 Qc1 Bc3 Qed1 Bf6 e1B Bf3 Bc3 Bd8 Qa7 Kb5 Bd4 Bg2 Qa2 Rc4 Qb3+ Ka6 Qh5 Kb7 Ne1 Rc3 Qe2 Rd3 Qce3 Rd1 Qec4 Bf3 Qg2 Rc1 Qh3 Bh1 Qhf5 Bf6 Qa5 Rd1 Rce8 Rc1 Re5 Rd1 R8e6 Be7+ Kd7 c8N Rc5 Nd6 Qee2 Nf5 Qh5 Nb4 Bd3 Nh6 b1R Nc2 Qe8 Qgg2 Qf5 Bh4 Kd6 Qgg4 Qba4 Qg5 Rbb5 Rc1 Qab3 Rg2 Nh3 Rd2 Nf2 Rdd1 Qff7+
n4KQr/3R2q1/1r4b1/Bk1NR1B1/1NN3r1/1Bqn1n2/3bp2r/nq1nRQ2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc6 g4 e5 c5 b5 f5 e3 Kf3 e4+ Kf4 d3 Ke5 b3 g5 b4 f6 d2 g6 e2 a5 e1N f7 e3 g7 d4 a6 b2 a7 b3 Ra2 e2 Ra3 d3 Nf3 h3 Ra6+ Kb5 c6 h4 c7 h2 Qc2 d1N Rg1 h1Q Nbd2 b1R Qb2 h3 Qa1 h2 Rd6 b2 Rg5 Nf2 Ne4 d2 Bh3 d1N Ned2 Na6 Rd7 Nc5 Be6 Nb3 Nc4 Bb4 f8B Ne7 Kf6+ Nd5+ Kf7 Nfd3 g8Q Bd2 Nfe5 Nb6 Bb4 Nf3 Ba5 Qf6+ Ke8 Bb7+ c8N Be4 Nc6+ Bf5 Bd5 Qc3 Nb4 Bg6+ Kf8 Rh4 Rg1 Rg4 Re1 Rb8 Be6 Na8 Bf7 Qg1 Bd5 h1R Be6 Rb6 Ne7 Rh8 Ned5 Qh1 Bf7 Nc7 a8R Qh7 Re8 Na8 Qa2 Ra1 Re5 b1Q Qc2 Ra3 Qb2 Na1 Qc2 N3b2 Qf5 Ra4 Be6 Rh4 Qh3 Nd3 Qf1 Rh2 Bf5 N3b2 Bc2 Nd3 Bb3 Qcc2 Na2 Bg5 Nd2 Rg4 Nc4 Qc3 Nab4 Bf4 Be3 Bg5 Bc5 Bc1 Be7 Bd2 Bg5 Qg7+
1kb1R3/7n/r1Qq2b1/n6B/Nb1BN2R/1r1qNn1Q/r2rp1nn/RK1B4 w - - 0 1 illegal: No possible last move
4qK1B/b1N1RQ2/1rBrb3/Nrq1n1R1/nR3N2/1Qq1q3/Q2p2bq/6bk w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 h4 b5 c4 g5 c5 f5 h5 d5 c6 d3 h6 d4 h7 d2 c7 d3 a5 f3 Ke3 b3 a6 g3 a7 b4 Rh2 g4 Rh3 f2 Rh4 g2 Ra4 b2 Be2 f1B Ra6 f4+ Kf2 f3 Kg3 f2 Rc6 b3 Na3 b1Q Nh3 g1B Rc2 b2 Nf4 Qe8 Bf3 Qa2 Rh1 b1R Kh4 g3 Kg5 g2 Rh2 Nf6 Rb2 Ng4 Qe2 d1Q Qe1 Bc5 Qe2 Nd7 Rh5 Rb8 a8N Ba7 Rb4 Rb6 Nc4+ Kd4 e5 Nc5 e6 Ne5 Kf6 Na4 Kg7 Qa1 e7 Be6 c8Q Qc3 Qa2 d2 Qa1 Qe1 Qb2 Qe3 Qb7 Qd7 Qb3 Rd8 h8Q Rb2 Bc6 Rb5 Nd5 Ke4 Qg8 Kf3 Na5 Kg3 Rf5 Kh2 Nf4 Kh1 Rg5 Rb1 Qa2 Qec5 Nc7 Rb6 Re4 R1b5 Bb2 Qdd4 Qa6 Qcd3 e8R Nf7+ Rge5 Nc3 Nb7 Bh2 Ba3 g1Q+ Ng6 Bg2 Qa4 f1Q Na5 Q4e3 Rb4 Qa1 Q4b3 Na4 Bb2 Qdd6 Bd4 Qac3 Rg5 Qe7 Qh7 Rd6 Nf4 Qd7 Bf6 Ne5+ Kf8 Qb1 Qe7 Bg1 Qf7 Qh7 Bh8 Qh2 Re7 Qe8+
2B2q2/B1nq2r1/2rb2Q1/Kb1N1Qr1/1r2Nq1q/1Q3Nn1/b2p1R1B/kq4R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 a4 b5 h4 d5 a5 f5 a6 g5 c5 g3 a7 f3 c6 g2 c7 d3 h5 Kd4 e5 b3 h6 b4 h7 f2 e6 b2 e7 f4 e8N g4 Nc3 b1Q Na2 b3 Nb4 f3 Nf6 g3 Rh6 b2 Rh1 Bd6 Rh6 Bd7 c8Q Bb5 Nh5 Na6 Qcc2 Ne7 Be2 f1Q Nh3 g1R Re6 g2 Ng3 f2 Ng5 Rc8 a8Q Rc6 Re3 Nc7 Bg4 Nf5 N5e4 Qh4 Qa5 Rb8 Ng5 Rb7 N3e4 Ng3 Bc8 Rb8 Qca4 Kc4 h8B d4 Qh5 Rbb6 Qa7 Rb7 Q4a5 Kb3 Nd5 Rbb6 Re1 Rb8 Qg6 Rbb6 Kd1 d2 Ra2 Qc4 Qb8 f1Q Bg7 Qf8 Be5 Qcf1 Qb7 Q1f4 Rf1 Rh1 Ra1 g1R Nf3 Rg2 Ra2 Rhg1 Re1 Qd3 Qb8 b1B Ba3 Qf1 Bc5 Qd3 Rc2 Ba2 Rf1 Rb7 Ba7 Rbb6 Rc1 Kb2 Rc2+ Ka1 Re1 Bc4 Qc5 Rb2 Qb3 Bb5 Rf1 Nh1 Rc1+ Qb1 Qcc2 Rg5 Qf5 R1g4 Rf2 Rg2 Qcd3 Rg7 Ke2 R2g5 Rg1 Rc4 Qdc2 Ng3+ Kd3 d1Q+ Ned2 Qdc1 Ne4 Qfg4 Qg6 Qd7 Qf5 Qf1+ Kd2 d3 Bf4 Nh5 Bh2 Ng3 Qg6 Rb4 Kc3 Qfc1 Qf5 Qcf4 Qg6 d2 Qd3 Ra4 Qf1 Ra6 Qh3 Be7 Qhf5 Rd6 Kb4 Rc6+ Ka5 Bd6 Qa4 Rb4 Qd1 Be2 Qb3 Bb5
3kq3/NrnBrn1b/r1RQ4/1b2bq2/rK1n4/1nNR3N/p1r2Q1B/4B2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 e4 a5 g4 f5 c4 d5 b4 d3 Kc3 a3 g5 f3 b5 a2 b6 a4 e5 f4 e6 f2 b7 h3 g6 a3 e7 f3 c5 d2 c6 d4+ Kb3 h4 c7 h2 g7 h3 Bd3 f1Q Be2 d3 Qc2 d1N Bf4 f2 Bf3 d2 Bd5 Ne3 Bg2 d1R Bf3 Rd2 Kc3 Bf5 c8Q Nd5+ Kb3 Ra6 Be5 Rh4 Ne2 Nc7 Ng3 Rha4 Ne4 Nh6 g8R Nc6 b8B Nf7 Qe6 Bh7 Rg6 Bg7 Bg3 Be5 Ng5 Nd4+ Kc3 Qb5 Bg4 f1B Be1 Qbd5 Qcf5 Bb5 Qf2 Qe4 Qb6 Qf5 Rc6 Kd7 Qc5 Qe8 Qd6+ Kc8 Rg1 h1R Rg3 h2 Nh3 Rg1 Rf3 h1R Rd3 R4a5 Kb4 Rc2 Nc3 Ra4+ Kc5 Rg3 Rb1 a1N Rbd1 R4a5 Kb4 a2 Rc1 Re3 Rcd1 Qed7 e8N Kd8 Rc1 Nab3 Rcd1 Bg7 Ra1 Re7 Rad1 Na8 Nc7 Be5 Ra1 Ba4 N7b5 Nc7 Na7 Bb5 Bd2 Rh2 Rh1 Rg2 Be1 Rg1 Bf3 Rg7 Bd5 Ra3 Be6 R3a5 Qc5 Qe8 Bd7 Rb6 Qd6 Rb7 Qg6 Ra6 Qd6 Rg4 Rb6 Bh8 Qg6 Na8 Bh2 Nc7 Qd6 Be5 Rc6 Nf3+ Bf4 Na5 Kc5 Rh4 Bh2 Ra4 Qd2 Nd4 Qf2 Ra3 Kb4 Nab3 Bg3 R3a5 Bh2 Ra4+
1Qrr4/4rk2/rb1r1Nb1/3nR3/2qNBB2/pn1nQ1b1/2BN4/QKR1b2q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 e4 g5 b4 a5 c4 f5 Kc2 f3 h4 d3+ Kb2 d2 e5 d4 c5 f2 b5 f4 e6 a3+ Kc2 g3 h5 a2 h6 d3+ Kb2 a4 b6 g4 b7 a3+ Kb3 f3 c6 g2 h7 g3 e7 Na6 b8N Nf6 c7 Qd5+ Kc3 Nc5 Rh2 Bf5 c8B Bg6 Bg4 Ra6 Qc2 d1R Bf4 d2 Be2 f1R Be5 f2 Bd3 Kf7 Qa4 Rfe1 Kc2 f1Q Ne2 g1B Bf3 g2 Bfe4 Bf2 Qb3 g1B Bf4 Bg3 Nd7 Qc4+ Qc3 Nd5 Rh5 Bd4 Nf6 Qh1 Re5 Rg8 h8Q Bg7 Re6 Rc8 Re5 Bg1 Nd4 Be3 Bf1 Nd3 Bh3 Bh6 Bhf5 Bg5 Qd8 B5h4 Qc7 Re2 Qd6 Be1 Qb8 Bhg3 e8Q+ Kg7 Qh8+ Kf7 Nb5 Bb6 Qh6 Rh2 Qg5 Rhh8 Nd4 Rhd8 Qh6 Bef2 Qh8 Re1 Qh3 d1R Nd2 Re2 Rc1 a1N+ Kb1 Nb3 Qa1 Be1 Qh6 Rh2 Qg5 Rhh8 Qh6 Rhe8 Qg5 Re7 Qh6 Nb2 Bc2 Nd3 Be4 Rd6 Qh3 Bh2 Qf3 Bhg3 Qe3 Rdd8 Nf1 Nc7 Ne2 Nb2 Bh6 R1d3 Bf4 R3d6 Nd2 Nd3 Nd4 Nd5
1BN1R3/q1K3kN/rrRn1qbN/b3BbbQ/5pB1/1Q4q1/5q2/1Qr1q2n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 a4 b5 h4 g5 e4 f5 c4 Kf7 a5 f3 Kg3 f4+ Kf2 d3 c5 b3 a6 b2 c6 d4 a7 b4 e5 d2 c7 b3 e6+ Kg7 e7 d3 e8Q Nc6 h5 Nge7 Ra4 Nd4 Qd7 Nb5 Rd4 Nd6 Qc6 Rh6 Nh3 Bf5 Na3 b1R c8N b2 Qb3 d1Q Qcb6 d2 Rc4 Ra1 Q6b4 b1B Rc6 Qd7 Nc4 g3+ Kg1 g2 Kf2 g4 Bb2+ Rf6 Be5 Bbe4 Bd3 Rc1 Be2 Qe6 Qb1 Qb3 Re1 d1Q Ne3 Qa4 Ng5 g1B+ Kf1 f2 Nh7 g3 Q4b3 Qdd4 Bg4 g2+ Ke2 Qb6 Kd2 f1Q Re2 Rb8 a8Q Qf2 Qa5 Ra8 Qab5 Ra6 Qa5 Bc2 Kc3 Qa7 Qad5 Qa1+ Kb4 Bg6 Qb5 Nef5 Re1 Rb6 Kc5 Be7 Qe2 Ng3 h6+ Kf7 Qf3 Nh1 Qh3 Qg3 Qh5 Bf2 Re2 Be1 Nf5 Ba5 Re4 g1Q+ Re3 Nc4+ Bd6 Bd8 Bb8 Qee7+ Kd5 Q1f2 Re5 Qb4 Re8 Qbe1 Rce6 Bd3 Nf8 Ra6 h7 Qfe2 h8B Q2f2 Nh7 Qab2 Rd6 Re6 Bg7 Bg5 Bc3 Rf6 Nh6+ Kg7 Rde6 Bdf5 Rb6 Nd6 Kc6 Nb7+ Kc7 Qbd2 Q3c2 Qdd4 Ba1 Rd6 Qb3 Qf6 Be5 Bc3 Qcb1 Re6 Rb5 Reb6 Rc5 Ba5 Rc6 Nd6+
N1nR4/2KbB3/bQ1r4/Rbq1k1Nn/BRB2p1n/r1qn4/nq4N1/1Q2b3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 d5+ Kd3 b5 c4 h5 a4 b3 g4 b4 e4 b2 g5+ Ke5 c5 f5 g6 b3 g7 f3 a5 h3 a6 h2 c6 h4 a7 h3 c7 f4 Be3 f2 Qc2 Ba6+ Qc4 Rh6 c8Q Qf6 Na3 b1B+ Nc2 b2 Qg4 Bb4 Bc1 Ne7 g8N Nbc6 Bd2 Ng6 Bc1 Nh4 Qe2 Be1 Qe3 Ne7 Ra5 Nc8 Ne7 Ba2 Bd2 b1Q Bb4 Qb2 Qb5 Bb1 Be2 f1B Qc1 Ba2 Qb1 Qf5 Ne3 Rd6 Ng2 Bb3 Ng8 Ba4 Nf6 Qg5 Ne8 Qg7 Bc3 Qc7 Bb4 Qc5 Qc4 Bd7 Nf3+ Ke6 Rg1 h1N e5 h2 Qb5 Ng3 Nc7+ Kf5 e6 h1N e7 Nh5 Ng5 Ke5 e8B N1g3 Nh3 Ne4 Rh1 Nc3 Ng5 Na2 Ba3 Rb8 a8R Rbb6 Ra4 Rb7 Rc4 Ra7 Qb3 Bab5 Bb4 Ra3 Ra5 Qc1 Na8 Qe3+ Kc2 d3+ Kb2 d2 Bd3 Nc1 Kc3 Qf2 Be2 Na2+ Kd3 d4 Rh3 Kf6 Ke4 d1N Rd3 Nb2 Rd1 d3 Rd4 d2 Bc4 Bh3 Bc6 Ba6 Ba4 Nd3 Q3b2 Bd7 Qb3 Qb6 Bc5 Qb4 Q3b2 Qc3 Qb6 Rc6 Kd5 Be2 Rc1 d1Q Be7+ Kf5 Rc2 Qc1 Rb2 Qg1 Rb4 Q1b2 Re4 Bf1 Re6 Qe3 Rh6 Qef2 Rh8 Qg1 Rd8 Re6 Bd6 Kf6 Bc5 Rd6+ Ke4 Ndc1 Bd5 Bfb5 Bc4 Re6+ Kd5 Nd3 Bf8 Nf2 Kc5 Rd6 Be7+ Ke5 Qc6 Na7 Kb6 Nd3+ Kc7 Nc8 Qb6 Qc5+
2Bn3R/r2nn2K/1b1N1Qb1/krR1rbpQ/qN1n1b2/3N3B/R1nq4/6B1 w - - 0 1 illegal: No possible last move, all moves rejected
1n1N1q2/nBB3k1/3b1rn1/R1b2p1q/2RqbQ2/b5BQ/1r1N2QK/bn3N2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 Kg2 c5 a4 b5 e4 f5 d4 Kf7 h4 c3 d5 g3 e5 c2 a5 c4 e6+ Kg7 h5 c3 d6 f3+ Kh3 b3 d7 g2 a6 f2 a7 b2 e7 g4+ Kh2 b4 e8Q g3+ Kh3 b3 Qd5 Bb7 Qde6 Ne7 Rh2 Rh6 Qd6 Ng6 Qc5 Be4 Qb5 Bd6 Ne2 g1Q Ra5 g2 Bf4 c1B Nd2 b1N Qa4 b2 Ng3 c2 Ba6 f1Q Bb7 Qe2 Ngf1 Nc3 Bg3 b1N Qb4 Qc8 d8N Qd4 Qeb5 g1B Qd3 Ba3 Rh1 Bf2 Kh2 c1B Rg1 Nf4 Qe3 Rf6 h6+ Kf8 h7 Bcb2 h8B Nb5 Qbb3 Ng6 Qf4 Ba1 Qbf3 Be3+ Qg2 Qh5+ Qh3 Qb2 Rg2 Bec5 Rf2 Kg8 Rf3 Qe5 Rc3 Qd4 Rc4 Kh7 Ne6 Qf8 Nd8 Rf7 Be5 Rf6 Raa4 Kg7 Ra5 Be7 Bc7 Bed6 Qfh4 Nd7 Qg5 Rb8 a8Q Na7 Qg4 Rf7 Qf4 Rf6 Bc8 Rb2 Qd5 Rc2 Bb7 Nb8 Qc6 Rb2 Qd5 Bc2 Qg2 Be4
n1qrq3/B1r2nq1/Rrn1Nb2/R2p2N1/B3Q3/1bQ3QR/2n3q1/1q1BK1k1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 Ke7 c4 Ke6 g4 Ke5 a4 f5 g5 b5 a5 h5 a6 d3 g6 Kd4 a7 f3 e5 f2+ Kd2 h3 g7 f4 c5 h2 e6 h4 c6 b3 c7 f3 e7 h3 e8Q b4 Ra3 b2 Qe7 b3 Bg2 f1Q Qc2 f2 Qg5 Qe8 Qb5 Nc6 Qd1 Rh7 Be4 Nh6 g8B Qg2 Ra5 f1N+ Ke1 Ne3 Ra3 Be7 Ra6 Qg7 Qe2 d2+ Kf2 d1N+ Ke1 Nf7 Qg2 Nc4 Qg3 Bf6 Qf3 Nb6 Qg3 Ne3 Na3 b1Q Bf5 b2 Bg4 d5 Bd1 Bd7 Qe2 Rd8 c8Q Na8 Nf3+ Ke4 Bd2 Qc2 Ba5 b1R Bb6 Rb5 Bd4 Rb6 Nb5 Qc5 Qc4 Bg4 Nc7 Nc2+ Kf2 Bh5 Ne6 Bg4 Qa4 Qc4 Ra5 Qa6 Qcc7 Qc8 Be3+ Kd3 Nfg5 Be2 Bc5+ Kd2 Qe4 Bc4 Qce5 Bb3 Qec3+ Kc1 Re1 h1Q Re3 h2 Rf3 Qg1+ Ke2 h1Q Rd3 Nc7 a8R Qgg2+ Bf2 Qhg1 R8a6 Na8 Re3 Rh4 Bh7 Rh1 Bg6 Rh7 Rf3 Nd6 Bf5 Qgf8 Ng7 Rb5 Bd7 Ne5 Qh2 Rb7 Bb5 Nc6 N7e6 Rhc7 Re3 Qg7 Ba4 Nf7 Rh3 Q1h1 Qhg3 Qe1+ Kd3 Rb5 Ba7 Rb6 Be2 Qeg1 Bf1 Kd1 Qcd4 Q1f2 Be2+ Ke1 Bf3+ Kf1 Qc3 Qe1 Bh5 Qb1 Bd1 Qg1 Kd2 Qh1 Qgf4+ Kg1 Ke2 Na1 Ke1 Qg2 Qfg3 Nc2+
4K3/RR6/Q2bbb1Q/2rp2qB/1b1BQ1Rr/2n1r2n/NqnkrN2/B3b3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1B h5 d3 h6 e3 h7 Ke4 a5 e2 a6 d2 a7 Kd3 f5 g3 f6 g4 f7 g2 Rh3+ g3 Ra5 Na6 Ra2 Be6 c8R Nf6 Ra1 Ne4 Rc5 Rc8 a8Q Nc3 Rc6 Bd6 f8B Qg5 Rc4 Rc5 Rh6 Ke3 Nh3 g1N Bb2 g2 Qc2 d1R Rg4 Rd3 Nf2 Nh3 Ra4 g1B Ba1 Bgh2 Ra2 Bhe5 Bg7 Bf6 Qc8 Re8 h8Q Bd2 Rh7 e1B Be2 Rd4 Rg2 Rh4 Bh5 Re7 Rg4 Ke2 Kb2 b3 Ka3 Nb4 Qa6 b2 Qf8 Ke3 Bh8 Re8 Rb7 Ke2 Qf5 Nc2+ Kb3 Ke3 Qh6 b4 Qfh7 Ne4 Ka4 b3 Nc3 b1R Ra3 Rb2 Na2 Bb4 Bg7 Kd2 Bh8 Rc3 Kb5 Rc5+ Kb6 Nc3 Qe4 Bfe7 Bd4 Bf6 Nc1 Ra2 Ra5 Ra3 Na2 b2 Ra4 b1Q Ra5 Rb5+ Kc6 Qb2 Ra4 Nd1 Ra5 Re3 Ra3 Nc3 Ra5 Bg8 Kd7 Re5 Ra4 Be6+ Ke8 Rc5 Qf1 Nb1 Raa7 Nc3 Qa6 Re2 Qf3 R5e3 Qh1 Rb5 Qe4 Rc5
Rn1Q1N2/bB3Q1q/B1n1q2B/q1p3K1/r3n1n1/R1Qn1N2/b1r5/1R2qkr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 e4 Kc5 a4 Kd4 g4 h5 g5 f5 e5 b5 a5 h3 g6 c3 a6 c2 a7 b3 g7 h4 d3 h2 e6 b4 e7 h3 e8R b2 Re5 b3 Ra3 Be6 Nc3 b1Q Bd2 c1N Rb5 b2 Re5 Ba2 Bg2 Bc5 Qf1 Ne7 g8Q Nec6 Kf2 f3 Kg3 f4+ Kg4 f2 Ra6 f3 Qe2 f1Q Rf5 f2 Be4 Qe1 Bh6 f1N Nd5 Ng3 Ne7 Qd5 Rf4 Qe6+ Kg5 Qa1 Rf3 b1R Qf7 Rc8 Ng6 Qac3 Qc2 Qa5 Nf8 Ra1 Rf2 Ke3 d4 Nd3 Nf3 Rc1 Rhf1 h1Q d5 h2 Qc3 Rc2 d6 Rd8 Ng6 Rg8 d7 Rg7 Rg2 Rg8 Rgg1 Ke2 d8Q Rg7 Bd5 Rg8 Bc4 Ne4+ Kh5 Rg7 Nf8 Rg8 Rg5 Be3 Rb5 Bc5 Rb1 Rg1 Ng5 Bd4 Rf3 Bf2 Rg3 Kf1 Kh4 Qg2 Bb5 h1N Nf3 Bc5 Kh5 Nhf2 Rg8 Qgg6+ Kh4 Qb4 Ra3 Qh7 Ba6 Qa5 Kh5 Ng4 Rh8 Nd7 Rg8 Rb8 a8B Rb4 B8b7 Ra4 Rh8 Ndb8 Rg8 Nce5 Rh8 Ba7 Rg8 c5 Rh8 Nef2 Kg5 Nec6 Qde7 Bb3 Ng6 Nd7 Ra8 Ba2 Qd8 Ndb8 Nf8 Ne4+
1Nbq4/k2n3B/b3np1q/2r3Q1/1n3Rb1/Q1rbb1B1/2Q2Bq1/KR1q1NR1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 h4 Kd7 c4 Kc7 Kc2 Kb6 Kb2 g5 a4 d3 e4 f3 h5 d4 e5 d2 h6 f6 a5+ Ka7 c5 b5 a6 d3 c6 b3 h7 g3 c7 b4 e6 f2 e7 g2 e8Q g4 Nc3 g3 Nb1 Bc5 Qde1 d1Q Nf3 g1Q Q1e4 g2 Be3 d2 Qb5 Nd7 Ra4 Ne7 Bd3 f1B Nd4 Nd5 Bf2 Bb6 Ka1 b2+ Ka2 Re8 h8B Re5 Bg7 Rh5 Bf8 b3+ Ka3 Nf4 Bd6 Ne6 Qg5 Qh2 Bdg3 g1Q Qc6 Rh3 Qc2 Qgg2 Bh7 Rb8 Rg1 Qhh1 Ne2 Be3 Rf4 Rb5 Nd4 Rc5 Nc6+ Ka8 a7 Bfa6 Nc3 b1N+ Kb2 Na3 Nb1 Qhh2 Ka1 b2+ Ka2 Kb7 a8Q+ Kb6 Nb8 Qhh1 Nc3 b1B+ Ka1 Qhh2 Qf3 Ka7 Ne4 Qhh1 Bh4 Qhh2 Ng3 Qhh1 Nf1 Qhh2 Qc1 Bbd3 Qe4 Rf3 Bhg3 Qh6 Qeg6 Qc2 Qe4 d1B Qb4 Qd2 Qc2 B1e2 Qbb2 Qd1+ Qbc1 Nb1 Qa3 Nc3+ Qcc1 Nd5 Qb1 Bb7 c8R Nb4 Rc6 Bc8 Rb6 Bf5 Qbc1 Bed3 Qb1 Bg4 Qbc1 Na2 Rb1 Nb4 Qc2 Rc3 Rc4 Rf5 Rf4 Rfc5
n1b2n1B/3b3R/p2rqb1N/R3Rr1N/1N3b2/3B2b1/nQ2B1Kn/2q1krQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 h4 Kd6 b4 Kd5 c4+ Ke4 c5 d5 e3 g5 h5 f5 b5 a6 c6 f3 h6 d3 c7 d2 b6 a3 b7 f4 h7 a2 Na3 d4 Qa4 d1B Qa5 g3+ Ke1 f2+ Kd2 d3 Be2 f1R Qc5 g4 Rh5 g2 Qa7 g3 Qc5 f3 Nb1 f2 Bb2 Nd7 b8R Nb6 Nh3 g1B Nf4 g2 Nh3 Qd7 Rh6 Ne7 Na3 Ng6 Nf4 Ba4 Nc2 Bd6 Nb4 Qe6 Nh5 Rd8 h8Q Bad7 Rh7 Bgh2 Re1 a1B Bc3 Na4 Rb5 g1Q Ra5 Bdf4 Qg5 Qh1 Qg1 Bhg3 Kd1 d2 Bg7 Bb7 c8N Nb6 Ne7 Bf6 Ng8 Nf8 Nh6 Bbc8 Bd3+ Kf3 e4 Rb8 e5 Na8 Be2+ Ke3 Bd3+ Kd4 Ke2 Kc3 Nc2 d1N Nb4 Qeh3 e6 Rb5 e7 Rf5 e8B Qc6 Bc2 Qc4+ Kf3 Kd2 Bf7 Nc3 Bd3 Na2 Ree5 Qc1 Bfc4 Kd1 Be2+ Ke1 Bcd3 Qg4+ Kg2 Qg6 Qg8 Qe8 Bh8 Qe6 Ra4 Bb5 Qg5 Rd6 Ra5 Bbd7 Qh2 Rh1 Qg1+ f1N Qd4 Nh2 Qb2 Rf1 Qg4 Be3 Qgd4 Bd2 Qg1 Bdf4
1rn5/BbN1K1Np/1b2bn2/q2rbb2/3q2qk/2BQ1Q2/q1R1R1R1/2nB3N w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 a4 Kg5 g4 e5 c5 d5 a5 b5 c6 e3+ Kd3 h3 f4+ Kh4 g5 e2 f5 e1N+ Ke2 e4 a6 d3+ Ke3 b3 Kf4 d2 Ke5 h2 a7 d4 f6 b2 g6 b4 f7 d3 g7 e3 c7 e2 Ra4 Be6 c8N Nd7+ Ke4 b3 Ne7 Nb6 Nc3 b1Q Ncd5 b2 Ra2 Nf6+ Ke5 Nc8 g8R Nd6 Nc7 Bg7 f8B Rb8 a8Q Qa1 Qf3 b1B+ Rb2 Qa2 Nh3 Bc2 Rg1 h1B Nf2 Bb1 Qc2 d1Q Be3 d2 Qd3 Qda4 Bc5 d1Q Ba7 Qg4 Rc2 Qd2 Rg2 Qda5+ Ned5 Qd7 Be7 Qda4 Re8 Rg8 Bf8 Bh8 Bh6 Rg7 Bd2 Rd7 Bc3 Qa4b4 Qb5 Qbb2 Nf4 Nd3+ Kd4 e1B Be2 Rdd8 Bd1 Nc1 Kc5 Bd2 Nh5 Be3+ Kc6 Bb6 Ng7 Qbb4 Qbd5 Qbd4 Qb3 Bf5 Ree2 Be6 Rcd2 Bbf5 Rc2 Nb7 Qc4 Rd5 Qcd3 Nd6 Rg3 Bg2 Nh1 Nh5 Nge8 Be5 Ng7 Bh3 Rgg2 Bc8 Nge6 Bb7+ Kd7 Nf6+ Ke7 Qge4 Ne8 Bg6 Nc5 Be6 Ng7 Bgf5 Na6 Qg4 Nc7 Nc8+
Q1qN2Nb/3Npb1k/1R1rn2q/3Q1r1r/R3Q3/rB1q4/b3q3/K2BBn1r w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 a4 b5 c4 h5 Kc2 d5 Kb2 h3 g4 h4 f5+ Kh7 g5 d3 c5 b3 f6 h2 c6 b4 f7 d2 c7 h3 a5 d4 a6 d3 a7 e3 Qh5+ Nh6 Qf3 d1R Nc3 e2 Nb1 e1R Bg2 d2 Qe4+ Nf5 Qg4 Nc6 Ra4 Be6 c8B Ne3 Na3 Nf1 Ne2 Bg7+ Nd4 Re5 f8Q Rf5 Bd5 Bf7 Qe4 Qd7 Ka1 Nd8 Nc4 Ne6 Ba6 Qc8 Qd8 Be5 Rg1 h1R Nb6 h2 Nd7 Bg7 Be2 b2+ Kb1 Bf6 Bb3 Bg7 Ka2 b1B+ Ka1 Ba2 Qa5 Be5 Qad5 Bf6 Bc2 b3 g6+ Kg8 g7 Rhh5 Bf3 Kh7 g8N Bh8 Rg5 Rg1 Bg4 h1Q Rg6 Qh2 Rf6 Rh1 Nc6 Qf4 Nd8 Qh6 Ne5 Re1 Bf3 d1Q Nd7 Qe2 Bg4 Rd1 Bf3 Rb8 a8Q Rd3 Bf4 Rb6 Bd2 Rd6 Be1 Qed2 Bfd1 Qe2 Kb2 Rc3 Ka3 b2+ Bb3 b1Q Rg6 Qf3 Rf6 Qbd3 Kb2 Qfe2+ Ka1 Ra6 Bc4 Ra3 Bcb3 Nd4 Rb6 Ne6+ Qee5 Ra5 Qe4 Rd5 Q5d4 Rd6 Qed5 Ng7 Q4e4 Ne6+
rb1R3K/3pQ1n1/1b2N1k1/2q3Nr/rnqB2b1/2R4Q/3Nr2Q/1RnBrb2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 Kd3 b5 Ke4 f5+ Ke5 Kf7 c4 Kg7 a4 d3 h4 b3 e4 f3 h5 b2 c5 f4 a5 d2 a6 f2 a7 f3 c6 b4 c7 g3 Nc3 b1R Qa4 d1B Bc4 f1R Qa3 f2 Ra2 b3 Qb4 g4 Na4 g2 Ra3 g3 Bb2 Bg4 Nc3 Nf6 Nh3 g1B Qe7+ Kh6 Ng5 g2 Be2 Ne8 Bd1 Ra1 Nb1 Re1 Bd4 f1Q Nd2 b2 Rc3 Ba6 c8R Qb6 Rd8 b1R Qa3 Re2 Qb3 Kg7 h6+ Kg6 h7 Ng7 Qc2 Ra4 Qd3 Bb5 Qh3 Na6 Qh2 Nb4 Qh3 Rg8 h8Q Qa5 Q8h4 Rh8 Qh2 Rh5 Q4h3 Bf2 Rg1 Kh6 Kf6 Bd6 e5 Rba1 e6 Bb8 e7 Qb6+ Kf7 Qc5 Kg8 Bd3 Rh1 g1N e8Q Be3 Kh8 Qf7 Bc2 Rae1 Bd1 Qfc4 Qf8 Rf2 Qe7 Ne2 Rf1 Nc1 Rg1 Bf1 Rh1 Be5 Rg1 Rfe2 Rh1 Rb8 a8N Rc8 Nc7 Rca8 Nce6 Bc7 Rd3 Bb6 Rb3 Bf4 Rg1 Bfc7 Rb1 Be5 Rg3 Bb8 Rc3 Kg6+
1B1qr2r/2Q1Rbk1/N3qqb1/nQ1nq1N1/3B4/4n2r/rQ2B1Rp/1N3Kb1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 a4 d5 f4 h5 c4 b5 g5 e5 a5 d3 a6 h3 f5 e3 f6 e2 a7 d4 c5 h4 c6 b3 c7 b2 Nc3 b1N Kf2 e1Q+ Kf3 b4 Qd2 b3 Qe3 h2 Kg2 b2 Qe2 h3+ Kf3 e4+ Kf4 d2 Nd5 d1Q Qd3 e3 Be2 Bc5 Kf3 Nh6 Qb5 d3 Ra2 d2 Nc3 Be6 c8Q Nc6 g6+ Kf8 f7 Kg7 Qcb8 Qb3 Qc7 d1Q Bd2 Na5 f8B+ Kf6 g7 Nf5 g8Q Bf7 Qg4 Qe6 Qg2 Qe5 Bc1 Q1d4 Bd6 Bb6 Qf2 Kg7 Bc5 Q4d6 Bd4 Q6f6 Bd2 Na3 Bc1 Nc2 Nb1 Nb4 Bd2 Nd5 Bc1 Rb8 a8N Rb7 Bd2 Ra7 Bb4 Qee6 Bd6 Qc3 Bc4 Qfe5 Ke2 Ra6 Kf1 Bc5 Na3 b1B Qfb2 Bc2 Nf3 e2+ Kf2 e1R Ng5 Re4 Re1 h1R Nb1 Re3 Be2 h2 Qcb8 Reh3 Nc7 Ra8 Na6 Rf1+ Kg2 Rf2+ Kh1 Q5f6 Qc7 Qce3 Bf4 Q3e5 Bg3 Nd6 Bf4 Bg6 Bg3 Nf5 Bf4 Rff3 Kg2 Ra3 Kf1 Ra4 Ra3 Ba7 Rg3 Ra2 Rg2 Re8 Bc3 Bg1 Bd4 Rc8 Qcc5 Qe3 Bb8 Q3e5 Qe7 Rcc3 Qc7 Rhh8 Rc1 Rch3 Rc6 Qee7 Re6 Qed7 Re7 Q7c8 Qa3 Qce6 Qab2 Nfe3+
2n5/2q2r1Q/r1NbN1R1/1qn4R/3bnnp1/1QB1Kb2/1Q2b1r1/N1RBqk2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 h7 d3 e5 Kd4 e6 d2 c5 b3 e7 b4 e8Q b2 c6 b3 c7 f4 a6 Bd6 a7 Ba6 c8R Nd7 Bb5 g3+ Kf1 f2 Ke2 f1N Qf7 g2 Rh2 g4 Qc2 d1N Rh3 f3+ Ke1 f2+ Ke2 Nfe3 Qf8 f1R Rf3 Qc7 Bd2 Ne7 Bc4 Nf2 Bb5 Nc5 Qd8 Nfe4 Rh3 Rf7 Na3 b1Q Qg8 b2 Rh5 Qc1 Rf8 b1Q Qb3 Nc8 Qg6 Qc3 Rg8 Qb4 Bd3 Qb5 Rg7 Rd8 h8Q Qc1 Qgh7 Qc3 Nh3 g1B Rc1 Ng2 Nf4 Be3 Ng6 Nf4+ Kf1 Rdd7 Be2 Bg1 Be1 Ke3 Ne5 d4 Rg6 d3 Nc6 d2 Q8g7 d1B Qgh8 Qcd3 Bc3 Qb1 Ke1 Bb7 Bf3 Kd3 Nc2 Be2 Na1 Bd4 Qf6 Bf1 Bd1 Be2 Qfe6 Ke3 Qb2 Kf3 Qea2 Kg2 Qab3 Rde7 Bd2 Re6 Bc3 Rb8 a8N Ref6 Nb6 Ra8 Nd7 Ra6 Nf8 Rf5 Rh1 Rh5 Ne6 Rh2 Rf1 Ba8 Rf3 Kg1 Rh3 Rg2 Rhh6 Nf2 Kd2 Kf1 Rh5 Bb7 Ne5 Bbf3 Nc6 Bh8 Rd5 Nfe4+ Ke3 Bf6 Nc2 Qa1 Rh5 Qaa5 Na1 Bh8 Bf6 Qe1 Bc3 Bd4+
BBqnr1nq/2r4k/NQ2b3/1RbN4/2B1Rp2/4qq2/r1Q1b3/1Rb2QKn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Bb2 f3 Kf2 Rh7 a4 d5 h4 f5 c4 g5 e4 b5 e5 g3+ Ke1 f4 h5 Qc7 a5 Kf7 c5 Kg7 e6 b3 c6 f2+ Ke2 g2 a6 g4 a7 b4 e7 g3 e8B Be6 Nf3 g1Q Qd3 g2 Ba3 b2 Qc3 b3 Ne5 d3+ Kf3 d4 Qc1 d2 Nd3 d1N Nc5 Qh2 Ba6 f1R+ Ke2 Rf2+ Ke1 g1B Nc3 Rc2 Kf1 b1Q Bb5 b2 h6+ Kh8 Qe3 Re7 h7 Qc1 Nd5 b1B Bd7 Qb6 c7 d3 c8Q d2 Qa6 Kg7 h8Q+ Kg6 Qf3 Be3 Qb2 Qh8 Bdc6 Re8 Qb7 Qd8 Qb6 Qc8 Rh2 Be7 Re2 Kh7 Qb3 Ra2 Bc4 Bd3 Rb1 Bd6 Bb7 Nc6 Qc2 Nd8 Bb4 Rb8 a8R Bf8 Bc6 Rb7 Ra5 Qa3 Qg2 Nf2 Kg1 d1Q+ Qf1 Bc1 Re4 Qf3 Rb5 Be2 Na6 Qae3 Bd6 Rf7 Be5 Bc5 Bb8 Rc7 Ba8 Nh1+
r6n/RQ1nN3/2bq1bB1/1r3R1b/1q2pKBR/Bk6/1qq2n2/1N1brQ1Q w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 h5 f4 d5 g4 b5 c5 b3 c6 b2 c7 b4 g5 h3 g6 h4 g7 e3 Kf3 h2 a5 h3 a6 b3 a7 e2 Ra5 e1R Bd2 d3 Bb4 d2 Bd3 d4 Rg5 Rh5 f5+ Kd5 f6+ e5 f7 Bg4+ Kg3 Nd7 c8R Nh6 g8Q Be7 f8Q+ Nf7 Rc1 Bf6 Bc2 Kc4 Qd6 d3 Qh7 Nh8 Qe2 d1Q Rf5 Qf8 Qf2 d2 Qb8 Qd6 Qb7 Qe2 Nf3 d1B Be4+ Qc2 Nh4 Bge2 Ba3 Bf3 Rg1 h1B Ng6 h2 Qf1+ Bfe2 Ne7 Bg2 Bf3 h1N+ Kg4 Nf2+ Kg3 Bh1 Bg4 Bc6 Rh1 Rg5 Rh4 Rh5 Nc3 b1Q Qh6 Qba2 Ra1 b2 Qc1 b1Q Qh1 Qbb2 Nb1 Qbb4 Qf1 Re8 a8B Qab2 Qh6 Kb3 Qh7 Ba4 Qbh1 Rg5 Be4 Bc6 Ra2 Ra8 Qf7+ Qbc4 Qd5 Bf3 Qb5+ Qcb4 Qb7 Bfe2 Rf3+ Qcc3 Bg6 Qc1 Bb2 Nb6 Ra7 Nd7 Ba3 Rf5 Bh3 e4+ Rf4 Re5 Rh4 Qc2 Bhf5 Bd3 Bh3 Q3b2 Rf5 B3e2 Kf4 Bh5 Bg4 Rb5+
r4K2/1Q3RRq/2Q1rQ1q/1qNbqrR1/p6n/Nb6/3nr1nB/k2Bb2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ d3 b4 a5 g4 d5+ Ke5 f5 g5 h5 b5 h3 c3 d4 b6 f3 b7 f4 g6 h2 g7 a3 Bh3 h4 Bg4 d2 Qe1 Kb3 c4 d1R c5 f2 c6 f1R c7 h3 Qe2 d3 Bh5 f3 Bg5 a2 Be7 a4 Bd6 d2 Bg4 Kb2 Qd3 f2 Kd5 Nf6+ Kc5 Rde1 g8B d1B e5 Be6 c8R Nh5 Nf3 Qg5 Na3 Bd5 e6 Re2 e7 Nf4 e8Q Nc6 b8Q+ B1b3 Qb7 Ng2 Nd4 Rh6 Qda6 Rhe6 Rg1 h1Q Rc7 h2 Rg7 Ne5 Qec6 Ng6 Bh7 N6h4 Be4 Qh5 Re1 a1Q Bef3 Ree8 Ne6 Qb1 Rc1 Ka1 Rc4 Be7 Rf4 Qe5 Rff7 Bg5 Qab6 Bd2 Qd8 Be1 Qf6 Rd2 Bd1 Re2 Bf3 Qf5 Nf4 Re6 Nd3 Nf4 R1g5 Nfg2 Kb6 Qh7 Kc7 Qg1 Kd7 h1Q Nc5 Qh3 Rh5 Qgh2 Be4 Qd3 Rhg5 Qb5 Bf3 Nf4 Bh1 Nfg2 Bb8 Qf4 Qe7 Qff6 Ke8 Qfh6 Kf8 Rg1 Nb1 f1N Na3 Nd2 Qd8 Rf1 Qf6 Ra5 Bd6 Rf5 Bc7 Qb2 Bf4 Qe5 Bh2 Ra8+
1RB1r1b1/1r1N4/Nn1B2rk/NKB3qb/pb5n/2Rr3Q/2nR4/4Qqbq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 a5 e4 f5 g4 Kf7 b4 Kg7 c5 f3 g5 f2 c6 a3 g6 f4 b5 f3 c7 a2 e5 h3 e6 h4 b6 a4 b7 h2 e7 h3 e8Q Bb4 Na3 Be6 c8N Ra7 Be2 f1Q Qd7+ Ne7 Nc2 f2 Ba3 Kh6 g7 Re8 g8R Nf5 Rg5 Bg8 Nd6 Nh4 Qf7 Nd7 b8B Nb6 Rg3 Qg5 Nc4 Rb7 Rb1 a1B Nf3 Bac3 Rhg1 h1R Qf5 h2 R1g2 Rg1 Qh3 h1Q Qe1 Bd2 Rh2 Be3 Nfe5 Rg2 Nd7 Rg1 Na1 Rg2 Nb3 Rg1 Kc2 d3+ Kb2 d2 Bg4 d1R Bd6 d4 Nbc5 d3 Na6 d2 Na5 Bd4+ Rc3 Rg3 Be6 Rd3 Ka2 Rc1 Rg2 d1B Rbb3 Bh5 Bg4 Bbc5 Bb4 Rc2+ Ka3 Rce2 Rh2 R2e6 Rb2 Be3 Rg2 Bd2 Rbb3 Bd4 Bbc5 Rg6 Kb4 B4e3 Kb5 Bd4 Rc1 Bb4 Rh2 Qfg2 Bf5 f1N Rcc3 Bg1 Rb2 Qf3 Rhd2 Ne3 Qb1 Nc8+ Nb6 Ba3 Qe1 Nc2 Bg4 Rf7 Kc4 Qf1 Rb4 Ne7 Bc8 Nd5 Rbb3 Rc7 Nd7 Ra7 Rb7 Nb6+ Kb5 Bb4 Rb8 Rb7
2rn1qrK/3qR2R/bb1q4/k3Bpr1/1b2Nn2/r2Qn3/1N3bRQ/1BB4N w - - 0 1 illegal: No possible last move, all moves rejected
1q2N1n1/Qb2b2N/qN1pKbr1/rQn1R3/B4q1B/Q4q1B/r1R2n2/5b1k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 a4 b5+ Kb3 g5 c4 f5 c5 f3 e3 f4 a5 d6 h5 g3 h6 d3 c6 d2 c7 f2 h7 g4 a6 f3 a7 g2 Ra2 g3 Qe1 d1N Bb2 Nd7 Rh3 Qf6 Rh5 Be7 Qc3 Bb7 c8N Qf4 Nh3 g1R Na3 g2 Nb6 Nc5+ Kc2 Rb8 a8Q b3+ Kd2 b4 Nb5 Re8 Qa7 Ra8 Ba1 b2 Nc7 b1B Rc2 b3 Ne8 b2 Qca3 Ba2 Rf5 b1Q Bf6 Bc4 Bh4 Be2 Qb8 Ra5 Qa7 Rh1 Rh5 g1B Bg2 f1Q Ng5+ Ke5 Bh3 Nf2 Kc3 Rh2 e4 Qg2 Qb3 Bf1 Qa4 Qb5 Qa3 Qa6 Kb4 Qgg4 Kc3 Qc8 Kb4 Kd4 e5 Qb8 e6 Rg2 Ne4 Rg6 Re5 Ng4 Ng5 f2 Qa4 Bh2 Qd7 Bg3 Qb5 Bf6 e7 Ra2 Ne4 Ke3 Kc3 Kf3 Kd4 Bg2 Kc4 f1Q+ Kd4 Qh1 Kc4 Nf2 Kd4 Bc8 Kc4 Bf1+ Kd5 Nd7 Ke6 Bb7 Ng7 Ra5 e8B Be7+ Nf6 Bh2 Bf5 Kg2 Bh3+ Kg1 Bf7 Qhf3 Ne8 Nh6 Bg8 Kh1 Bf7 Rf8 h8Q Ng8 Qh5 Bg1 Qf5 Ra2 Qfd3 Bh2 Qa3 Bg3 Nc7 Rc8 Ne8 Rc5 Qbb3 Ra5 Qb5 Rg4 Nh7 Bf6 Bg5 Bh4 Bg6 Rg1 Bd3 Rg2 Bc4 Rg4 Bb3 Rg1 Ba4 Be7 Bh6 Bhf6 Bg5 Rg4 Bh4 Rg5 Qbb2 Rg6 Qb5 Nc5+
Q2bNqK1/3np3/4B1k1/4nR1r/b2RR1n1/3b1Q1n/r1bQ1Nqq/3rBB2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 b5 g4 d5 c4 h5 a4 e3 Kd3 b3 g5 e2 c5 e1N+ Kd2 d3 Kc3 d2 Kd4 b4 Ke5 b2 f5 b3 a5 d4 c6 h3 c7 d3 f6 h4 a6 h2 a7 h3 Ra3 Nh6 Be2 Bd7 c8Q Ba4 Qg4 Bg7 Bf1 Kg6 Ke6 Nd7 f7 Bd4 f8R Nf3 Nc3 b1B Nb5 b2 Nc7 Nfe5 Ne8 Bbc2 Qgf3 b1B Rf5 Bb6 Rb3 Qc8 Rb4 Bd8 Re4 Nhg4 Qe1 d1N Bd2 Rh5 Rd4 Rb8 a8Q Rb2 Qef2 Qb8 Be1 d2 Q2e3 Ndf2 Qc3 d1R Qd2 Ra2 Re4 Kh7 g6+ Kg8 g7 Kh7 g8B+ Kg6 Ne2 Bd3 Ng3 Bbc2 Rd4 Qc8 Ne4 Qb8 Rg1 h1Q Rg2 h2 Rg1 Nh3 Nf2 Rg5 Rg3 Qg2 Re4 Ne3 Rgg4 h1Q Rd4 Qhh2 Rge4 Rh5 Bf7+ Kh6 Bg8 Ng6 Kf7 Qbf4 Bh7 Ng4 Kg8 N6e5 Bg6 Nb6 Bf7 Nbd7 Be6 Kg6 Rf7 Qh6 Rf5 Qf8+
4rNRR/3bN3/1bbn1r2/1nQN1qB1/3n1b2/4Rbk1/1Br3pb/1Q1B2nK w - - 0 1 illegal: No possible last move, all moves rejected
1rNr4/1R2K1b1/n2B1Nb1/2rqNB1r/3Rrk2/2n2pb1/1B6/Qn1QQbr1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Ke5 h4 g5 a4 f5 a5 d5 c5 b5 c6 b3 c7 b2 h5 g3+ Kf3 g4+ Kg2 b4 h6 b3 h7 d3 a6 d4 a7 d2 Na3 b1R Qe1 d1R Qe3 b2 Qd3 Nf6 Qb3 d3 Nh3 d2 Bd3 Re1 Nf2 d1R Rh4 Bg7 Qc2 Ba6 c8N Qd5 Qd2 Rd8 h8B Bb7 Qe2 Na6 Bc2 Rd2 Qd1 Rb8 a8Q Rd3 Be3 Rc1 Bc5 b1N Ra2 Rde3 Rb2 Rh1 Be7 Bc6 Rb7 Be8 Bb4 Bg6 Bd6+ Ke6 Bd3 Rc5 Nc4 Rh3 Ne5 f3+ Kg1 g2 Qa7 Nc7 Qa1 f4 Bc2 Na6 Bd3 Rg3 Kh2 g1R Bc2 Rge1 Bd3 Rgg1 Bc2 g3+ Kh3 g2 Nfg4 R3e2 Bd3 f2 Bc2 Nd7 Nf6 f1B Kg4 f3 Kg5 Nb6 Ng8 Bf5 Nc4 Rf2 e5 Bf8 Rg4 Bg6 Bg7 Na4 Bh8 Qd4 Bf5+ Kd5 Bf6 Bg7 e6 Qd3 Bb2 Nac3 e7 Re3 e8Q Rfe2 Bd7 Re5+ Kf4 Rg5 Bf5 Rh5 Qe3 Re1 Ne5 Re2 Qed2 Kd4 Q2e1 Qd2+ Kg3+ Ke3 Rgb4 Qd5 Kg4 Rgh1 Rd4 g1B Qc2 Bf2 Qcd1 Rh8 Kg5 Bg3 Rc7 Rg1 Rb7 Bf8 Kf6 Bg7+ Ke7 Rh5 Be4 Kf4 Nf6 Re3 Bf5+ Re4
4Bb1B/1rb1R2r/1QN1R3/K1qQNbn1/br2b3/3bp1r1/R1Bn3n/2kN4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 a5 b5 g5 h5 f5 e3+ Kd3 e4+ Ke2 Kc4 f6 d5 c3 h3 a6 d3+ Ke1 e2 Kd2 e1B+ Ke3 h4 a7 h2 f7 d4+ Kf4 h3 Ke5 b3 g6 b4 g7 b2 Ra5 b3 Qg4 e3 Qf4 Rh4 Rd5 Qg5+ Ke4 Nc6 Qg4 Ne5 Ra5 Bg3 Ra2 Rb8 a8Q Nh6 g8B Nf3 Bh7 Bc7 Qa7 Qc5 Qb6 Be6 Qf4 Ng4 Qg5 Rb7 Ne2 Bh6 f8N d2 Ng6 d3 Nd4 d1B Nc6 Bf8 Bg2 d2 Rf1 Ne1 Rf7 h1R Re7 h2 Qh5 Rh3 Bf3 Rg3 Qe5 Nh6 Bh5 Be2 Qd6 d1B Bd2 Bd5+ Ke5 Kd3 c4 Kc2 Bc3 Be4+ Ke6 Nf3 Kd7 Ne1 Qd5 Nf7 Nge5 Ng5 Be8 Kc1 Bd4 Rf1 Nc3 h1R Kc8 Bdc2 Nd1 b1B Re6 b2 Kd7 Qb4 c5 Rf4 Bhg6 Ba4 Bh7 Bg2 Bc2 Rh7+ Re7 Bb3 Na5 Rff7 Kc6 Rh4 Bf5 Nef3 Bd3 Qc3 Kb5 Nh2 c6 Bd6 c7 Rfh7 c8R Qc5+ Ka6 Rhg4 Rc6 Ba4 Nf7 Bc7 Bh8 Rb4 Rce6 Bh3 Ne5 Bf5 Nac6 Bf1 Bc4 Bbe4 Bb5 b1N Ka5 Qd4 Bd3 Nd2 Bb1 Bfd3 Bc2 Qc5+
N1r1B2Q/N1rq2R1/1Rb5/bN1Rn1nK/b3pb2/2B3n1/B1Qb3k/3rrb2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 h5 g3 Kf3 e4+ Kg2 e2 Kh3 e1B h6 b3 h7 b2 a5 b4 a6 b3 a7 g2 Rh2 d3 Be2 d4 Rh1 d2 Ra3 g4+ Kh2 g3+ Kh3 d3 Bf3 Nh6 Ra4 Nc6 Qc2 d1R Qc4 d2 Qa6 Nf7 Qc4 Nce5 Qc2 Bb4 Ra6 Ng5+ Kh4 Ba5 Kh5 Bb7 c8B+ Qd7 Rb6 Bc6 Nc3 b1B Nge2 g1N Bb2 g2 Nb5 Re8 h8Q Re7 Bb7 Rc8 Nec3 Ne2 a8N g1B Na7 Be3 Ncb5 Ba2 Ba1 b2 Rg1 b1R Bc3 Bc4 Ba6 Bg3 Rg2 Re1 Rg1 d1B Rg2 Ke6 f5+ Kd5 f6 Bgf4 f7 Bd2 f8R Ng3+ Kh4 Rg7 Rd8 Bf1 Bh5 Ke6 Be8 Kf5 Qb2 Ba4 Qc2 Rbd1 Rg1 Qe6 Rd5 Rgc7 Bb7 Qd7 Rg2 Bfe3 Ba6 Kf4 Bb7 Ne2 Kh5 Kf3 Rg1 Bf4 Rg4 Ngf7 Rg8 Ng5 Rg7 Kg3 Ba6 Kh2 Bb7 Rb8 Bc8 Qe7 Be6 Rbc8 Rc5 Qd8 Ba2 Qd7 Rd5 Ng3+
3bQb1K/1k3N1r/3Bb3/2bp2nB/B1nR2N1/bn1qb3/N2R2Q1/nr1r1R2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 a4 b5 c4 e5 f4 d3 Ke3 d2 h4 g3 c5 g4 a5 b3 a6 g2 h5 g3 f5 b4 h6 b2 f6 b3 h7 Bd6 a7 Nc6 Ra5 Nb4 c6 Rb8 a8Q Nc2+ Ke2 e3 Kf3 e4+ Kg4 e2 Kf5 e1B Kg6 e3 Kg7 e2 c7 Na1 Nf3 g1B Rc5 g2 Rf5 Bh4 Qa4 e1B Nh2 Be3 Rc5 Nh6 Qb5 Nf7 Qc2 d1R Qb7 Bb4 Qa8 Be7 Bd2 Ba3 Nc3 b1N Be2 b2 Na2 d6 Bg4 Be6 Rd5 Kd7 Rf1 Kc8 Bb4 Nd2 Bh5 b1N Ng4 Nc4 Qc6 Bhg5 Qe8 Nbd2 Rf4 Rf8 h8N Rg8+ Kh7 Rb5 Rd3 Kb7 c8B+ Ka7 Bd7 Kb7 Bc5 Rbb1 Ba4 Ndb3 Qe2 Qd7 Rd2 Bh6 Re4 Bd8 Qf3 Rg6 Bb4 Bg7 Kg8 Ng5+ f7 g1B Bc5 Bed4 Qg2 Bge3 Bb4 Bf5 f8R Be6+ Rf7 Ba7 Ba5 Bad4 Bc7 Bdc5 Bb8 Bf5 Rf6 Be6+ Nf7 Bf8+ Kh8 Rg7 Rf1 Ne5 Rb2 Qb5 Bc7 d5 Bd6 Qd3 Rd4 Nc4 Rd2 Rh7+
nQ1qb3/nrb3N1/rb1kb3/3n1rbR/1R1K2B1/B1p1B3/1Q1NQ3/N1r3n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 c5 a4 f5 e4 b5 d4 g5 e5 b3 a5 b4 h5 f3 Ke3 f4+ Ke4 g3 e6 c3 d5 g2 a6 c2 a7 c4 h6 g4 h7 c3 Nd2 f2 Qf3 g3 Bb5 f1B Bc6 b2 Bd7 b1N Be8 b3 Ra5 b2 Qe3 f3 Qd4 f2 Rh4 Na3 Bc6 b1R Ke5 Nd7+ Ke4 Nb6 Bd7 Nb5 Qc4 Kd6 Ngf3 g1B e7 g2 Nd4 Bh2 Qe2 g1N Bg4 Be6 N4b3 Nf6+ Kd3 Rb8 a8Q Na7 Qb7 Na8 Na1 Bg3 Bb2 c1B Kd4 Bh2 Qb3 Rb7 e8Q Rg8 h8B Rg6 Ra4 Bh3 Rh5 f1R Rb4 Rf5 Ba3 Bf7 Q8b5 Be8 Qb2 Bf4 Bg7 Bg5 Bh6 Be7 Ndb3 Bcf4 Nd2 Rc1 Qb6+ Kd7 d6 Nd5 Ke4 Ke6 d7+ Bed6 Qbb5 Bc7 Kd3+ Kd6 Kd4 Qb8 d8N Ba5 Ne6 Qd8 Qa6+ Ke7 Qc6 Bfc7 Qb6 Kd7 Ng7 Rc6 Qc5 Ra6 Qf8 Kc6 Qg8 Kd6 Qh8 Bh4 Be3 Bg5 Qf8+ Qe7 Qa2 Rf7 Bf2 Bc6 Qb8 Qd8 Bf5 Be8 Qb2 Rf6 Be3 Bg4 Bh7 Be6 Bf5 Rf8 Bh3 Rf5 Bg4 Bb6+
R3n2r/5NNN/2R3K1/B4QnB/brQR4/qp1n3r/1b2bn2/b1Qrr2k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 c6 b2 c7 b4 Qb3 d1R Qc4 g4+ Ke2 g3 Kf3 d3 Qc2 d2 Qc6 Na6 Ne2 g1B Rh2 g2 Ra2 Bd7 c8R Bg7 Rb8 Qa5 Rh1 Bd4 Rb6 Nf6 Qc4 Ne8 Rh4 Qa3+ Nbc3 b1R Rc6 Nc5 Ng3 Nd3 Nd5 Ba1 Nf6 g1R Be2 Rge1 Rg4 b3 Ngh5 Rb8 a8Q Rb4 Qaa6 Rh1 Qc8 Rh3+ Ng3 Re1 Rh4 d1N Bd2 N1f2 Bd1 Qc1 Ra8 Qa3 Qc1 Kd4 e5 Bb2 e6 Ke5 Rc7 Ba4 e7 Ba1 Qc4 Rc1 Be2 Rcd1 Rc6 Bb2 Qc1 Ba1 Nd7+ Kd5 Nf8 Bgb2 Qa6 Rhh1 Nh5 Rh3+ Kg2 Ke4 Ng7 Rhh1 Bg4 f3+ Kg3 Rh2 Be3 Rhh1 Bb6 Rh2 Ba5 Rhh1 Rh3 f4+ Kh4 Rh2 Kg5 Rhh1 Rh4 Rh3 Qc3 Ke3 Qf6 Ke2 Kg6 Kf1 Qe5 Kg1 Bh5 Kh1 Qc4 Ng4 Qec5 f2 Q5d5+ f3 Qf5 f1N Qc1 Ngf2 Rd4 Ng3 Qc4 Nd6 e8Q Nge4 Qec8 Ng5 Qc7 Ne8 Qcf4 Nfe4 Qe3 f2 Qec1 Rg8 h8N f1B Nf7 Rh8 Nh7 Be2 Rf6 Nef2 Rfa6 Nfe4 Rc6 Nef2
3Brnn1/1NrRR3/b7/3b4/Q1p2NrK/b1RQrrn1/k1nbQ2N/5Bq1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 d4 Kc6 e4 Kb5 g4 h5 e5 c5 g5 f5 a3 f3 e6 b3 g6 Ka4 e7 b5 e8Q h3 Kg3 h4+ Kf2 c3 d5 c2 g7 c4 d6 f4 d7 h2 Qe7 h3 Qh4 b4 Be2 b2 Qg3 Kb3 a4 Rh4 a5 Rg4 a6 Qg5 d8N Nd7 a7 Ba6 Nf7 Re8 Na3 b1N Nb5 Na3 Rb1+ Ka2 a8Q b3 Qa7 b2 Nd4 Bc5 Qd2 Nf8 Nd6 Bb4 Qd1 Bd2 Nb7 Re3 Ne6 Qg6 Kf1 f2 Nf3 Qg5 Rg1 h1B Nh2 Bd5 Qf3 Qg6 Rg3 Qg5 Qe4 Qg6 Qd3 Qg5 Nf3 h2 Kg2 f1N Kh3 h1R+ Nh2 f3 Nf4 f2 Rf3 Ng3 Bf1 Re8 Q1e2 Qg6 Re3 Qb6 Re7 Rg1 Bg2 f1R Rd7 Rf3 Bf1 Rh1 Qa8 Qg1 Qa7 Bb5 Qa4 Ba6 Re7 Be1 Bd2 c1B Ba5 Bed2 Bd8 Re3 Qb5 Nc2 Rd7 Bb4 Qa4+ Ba3 Re7 Bd2 Rc1 b1R Rd7 Nb4 Rc3 Nc2 Re7 Rb3 Rd7 Ne7 g8R Rf3 Rg7 Ng8 Nc5 Rb7 Rge7 Rc7 Nb7 Qf2 Bg2 Re1 Bf1 Qa7 Nh5 Qg1 Nf4 Rg6 Kh4 Rg5 Qd1 Ree3 Q1e2 Rg4+
Q3N2R/n2r3K/BnR4p/1b1n1Q2/b1Q3b1/n5NN/R2b1rqr/r1Bkb3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 a4 Kf5 c4 Kg4 f5 d5 g3 b5 c5 e5 a5 b3 a6 b2 a7 e3 Kd3+ e2 c6 h3 c7 b4 f6 h2 f7 b3 Be3 e4+ Kd2 d3 Na3 b1N+ Kc1 d4 Bf2 e3 Ra2 d2+ Kb2 d3 Bg2 Bb4 f8Q Nd7 Qe1 d1B Nc2 d2 Qg7+ Qg5 Bb7 Nb6 Qf6 Na3 Qf1 e1B Ba6 e2 Nd4 Ne7 Nf5 Nb5 Nh3 Kf3 g4 Ned5 Ng3+ Bf5 Qe5 Raf8 a8Q Na7 c8R Be6 Kb1 b2 Rc6 Ba4 Qd4 Qg8 g5 Bg4 g6 d1B g7 Bb5 Qc5 Bbd2 Qc4 Bda4 Be3+ Bf2 Qb3 e1R+ Kc2 b1N Qc4 Rf1 Kd3 Rd1 Qc2 Bfe1 Kd4 Rf7 Ke5 Na3 Bf4 Ra1 Qf5 Rd7 Bg5+ Nf4 Kf6 h6 Rg1 Qd5 g8N h1R Rg2 Ke3 Re2+ Kf3 Re8 Rh2 Rb8 Ke3 Rf8 Qg2 Rd8 Rd4 Kg7 Rd6 Nf6 Rf8 Ne8 Rd7+ Be7 Nfd5 Kg6 Nb1 Ba3 Rff7 Bc1 Na3 Qg5+ Rf4 Qf5 Rf2 Bb2 Bb4 Rb8 Kd2 Bc1+ Kd1 Rd8 Rd6+ Kh7 Ba5 Nc7 Bac3 Rh8 Bcd2 Ne8 Rd7+
2K1B2n/1Q3rRr/q1Q1bn2/4b3/5rN1/rN2b1Nk/pQ2Rnbq/B1nB4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 c4 a5 b4 f5 g3 d5 c5 h5 b5 f4 b6 d3 b7 d2 c6 h3 c7 h2 Qe2 d1N Qd2 f2 Qc2 a3 Ra2 f3 Bg2 f1R Bf4 a4 Qe2 h4 Qe3 f2 Nh3 d4 Nd2 d3 Qd4 Nd7+ Ke6 Ndf6+ Qd7 Nc3 b8Q Bc5 e5 Ne7 Qb6 Rh7 Rg1 h1B Ng5 h3 Qb2 h2 Nb3 d2 Ne4 d1N Bf3+ Kh3 g4 Ne2 g5 Nc1 g6 Be3 g7 Bg2 g8N h1Q Ng3 Ng6 Nh6 Qh2 Ng4 Nh8 Bh6 Qf8 Bg7 Qe8+ Kd6 Qg6 Qc6 Be6 c8Q Qd3+ Kc7 Qa6 Q8b7 Ra7 Ra1 a2 Rb1 a1B Kd8 Bd7 e6 a3 e7 a2 e8B Be6 Kc7 Qd3 Kb8 Ra3 Kc7 Qa6 Be2 Nc3 Bd1 Nce4 Kb8 Re1 Kc7 f1R Kd8 Rf4 Kc7 Nd7 Kc8 Ref1 Be5 R1f3 Re1 Rff7 Re2 R3f4 Bf6 Nd3 Rc1 Nef2 Rc5 Nc1 Rg5 Bd2 Rg7 Be3 Qbc2 Be5 Qd2 Bd6 Ba1 Be5 Qb2 Nf6+
1R1B3N/b3NR2/2r1Q1R1/1n2p3/r2rqN2/q1rb2Q1/1Q3qBn/1Kbkb1q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 c3 b3 h5 e2 f6 e1B a7 g4 h6 g2 h7 b4 f7 b2 Kc2 Ke4 c4 d5 c5 g3 c6 d3+ Kb3 d2 Kc2 Ke3 c7 d4 Ne2 g1B Rh2 d3+ Kb3 g2 Ka2 Bh6 f8Q b3+ Ka3 Qh4 Qe7 Qf2 Rh5 Bf5 c8R Nf6 Qg7 Nc6 Ra2 Ng4 Nec3 Nd4 Rc7 Rhc8 h8N Nh2 Rf7 Rc6 Ne2 Nb5+ Kb4 Rc2 Nbc3 b1Q Nf4 b2 Kb3 Qa1 Qdg4 b1Q+ Rb2 Qa5 Rg5 Qa3+ Kc4 Bh7 Qe6 Kf3 Rb4 d1R Rg6 d2 Kd3 Rc8 a8Q+ Rc6 Qb8 Bg5 Bb2 Rdc1 Qgg8 Rc4 Rb3 Ra4 Ncd5 Bh6 Bc3 d1R+ Bd2 Bg5 Rc3 Qbb4 Rb3 Rc6 Qb6 R1c4 Qbb8 Rdc1 Be3 R1c2 Bb6 Bh6 Bd8 Re4 Nh3+ Bf4 Ne7 Rec4 Nf5 Bc1 Ne7+ Rf4 Bb6 Nc7 Qb7 Qfc5 Qd8 Ra2 Qd4 Bge3 Qc3 g1Q Rb2 Qbc4+ Kc2 Q5d4 Bg2+ Ke2 Kb1+ Kd1 Rb3 Rc2 Rg5 Qd2 Ba5 Ba7 Qg3 Bd3 Rg6 Qdf2 Rb6 Re4 Nf4 Qd5 Rb3 Red4 Rb2 Qe4 Qb4 Nb5 Bd8 Nd6 Qc3 Rdb4 Rb3 Rd4 Rb8 Nb5 Qb2 R2c3+
KbRqr1r1/1Nn5/1B4n1/QN1B1r2/1q2b1Q1/Bpq1bR2/1pN2b1R/1k1b4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 c6 b3 e5 b4 h6 b2 h7 b3 c7 Bb7 c8Q Ne7 e6 Ng6 e7 Rg8 e8R Na6 Qe6 Nc7 Bc4 Bd6 Qde1 d1B Nd2 Kc3 h8B+ Kc2 Bf6 d4+ Ne4 d3 Nf3 d2 Nc5 Be4 Be7 Qb8 Rh5 Qb4 Nb7 Rd8 Ra4 Kb1 a8N Rb8 Rf8 Re8 Bd5 Qc3 Rc4 Be5 Kf1 g2+ Kf2 g1B+ Kg2 g3 Rh2 Be3 Ba3 Bd3 Nd4 f3+ Kh1 f4 Qg4 f2 Kg2 f1R Nc2 Rf3 Rc5 Be4 Rf5 Nb5 Rc8 Bb8 Nc7 Bf2 Qe3 Qb4 Qb6 Be3 Qa5 Rf1+ Kh3 g2 Rf7 f3 Kg3 f2 Rf3 g1B Kg2 Be2 Kg3 d1Q Bd2 Bg5 Be3 Qc3 Bb6 Be3 Kg2 Qdd4 Kg3 Bd1 Kg2 Qdb4 Kg3 Nd4 Kg2 Ne6 Nb5 Nc7 Kg3 Re1 Kg2 f1Q+ Kg3 Qfc4 Kg2 Ne7 Kg3 Bef2+ Kf4 Q3d3 Ke5 Rf1 Bf7 Qdd2 Bd5 Qbc3+ Kd6 Ng6 Kd7 Q4d4 Kd6 Qcb4+ Kc6 Q2c3+ Nc5 Qdd2 Kb7 Qg5 Nd7 Qd8 Nc5 Na6 Ka8 Be3 Rf6 Rf5 Nb7 Bgf2 Rf7 Rfe5 Rf4 Rf5 Rf3 Nc7+
2r3QN/K1k2q1n/1bbqb2R/4B1n1/p2p2B1/1r1Nr1RQ/1B2r2q/N2Q2r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 Kd3 d5 e4 Kd7 b4 a5 g4 h5 c4 f3 b5 h3 e5 a3 b6 h4 b7 a2 e6+ Kc7 e7 a4 e8Q f4 c5 h2 c6 f2 g5 h3 g6 f3 g7 Qd6 Be2 f1Q Qc2 f2 Qg6 Be6 Qh5 Nd7 Na3 Nh6 g8N Re8 Qf5 Nf6 Qb3 Nh7 Ne7 Nf7 Ng6 Nfg5 Bb2 Bg7 Re1 a1R Qd1 Rb1 Nf3 Rhf8 Rg1 h1B Nc2 h2 Na1 Bf6 Rg2 Bd8 Rg3 Qg2 Nfe5 f1Q Qh3 Qf7 Nh8 Re7 Bc3 Rb3 Bg4 Qa2 Re4 Bf3 Re2 h1R Rh2 Rg1 Rh1 Qh2 b8B+ Kb6 c7 Bg2 Kd2 d3 Ke3 d2 Kd4 Re1 c8Q Re2 Nd3 Rfe8 Qb1 d1R Bb2 Rg1 Qd1 Be4 Bc7+ Kc6 Bb8+ Bc7 Qd8 Ba5 Qc8+ Rc7 Qd8 Ree7 Qg8 Rc8 Bc7 Qd8 Bf4 Qd6 Be5 Kc7 Bg7 Qd7 Kc5 d4 Bf6 Ra3 Be5+ Qd6+ Kb5 Bc6+ Ka6 Rb3 Ka7 Bed5 Bf6 R7e3 Be5 Be6 Qhf1 Qhf2 Rh6 Qh2 Qh3 Bb6+
3q2RK/6nQ/1k1r1NRq/b1RQ1qpB/b4nNb/6Bp/1nB2b2/1Nr4b w - - 0 1 illegal: No proof kernel
r3b2K/qrb1Qb1Q/n1nrRBb1/1Qpq4/6n1/3bN1NN/R4p1k/6RB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Ke6 Ke4 c5 g4 f5+ Kf3 Ke5 a4 h5 e4 b5 a5 c3 g5 c2 g6 h3 d3 h4 a6 b3 g7 h2 a7 b4 Ne2 b2 Nd4 h3 Na3 b1R Qe1 b3 Ra2 b2 Bg2 Ne7 g8Q Bd7 Ne2 Nec6 Qh7 Bd6 Rg1 h1B Ng3 h2 Qb4 Na6 Qb5 Bc7 d4+ Ke6 e5 Be8 Be3 c1Q Nc4 Kd5 Qe7 Rh6 e6 Qd7 Qh7 Qd2 e7 Rd6 Bf2 Ke6 d5+ Kf6 Be1 Kg5 Ne3 Bf7 e8Q Qa5 Kf2 f3 Qe7+ Kf4 Bc3 Qa4 Bf6 Be8 Nc4 Kg4 Ke3 f4+ Ke4 f2 Ra1 f1B Ra2 Ncb8 Ke5 f3 Nb6 Bd3 Nc4 Rb6+ d6 Nc6+ Kd5 Qd8 Ke6 Rd1 d7 b1B Re2 Rb7 Ne3+ Kf4 Ra2 Bdg6 Re2 Rd5 Ra2 Bbd3 Re2 Qa2 Ree1 Qb8 d8N Qd2 Nf7 Rd8 Bh4 Rd7 Kf6 Rd6+ Kg7 Qa2 Bf1 Qd5 Bf6 Bg2 Re2 h1N Ng5 Nf2 Kh8 Ng4 Re1 Bh3 Bg2 f2 Bh1 Bhf1 Nc4 Bgf7 Re6 Bdg6 Ne3 Bfd3 Ngf5 Qg2 Nh3+ Kf3 Nd4+ Kg3 Ndf5+ Kh2 Ng3 Qd5 Nef5 Qd8 Ne3 Rc8 a8R Qd7 Ra7 Ra8 Rd1 Nab8 Ra2 Na6 Rb1 Qd8 Rba1 Qb8 Rg1 Qa7
5r1r/N1RR2Qb/np1BKRq1/nQp2BNb/5nqr/B7/5b2/kr2rN2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 a4 b6 g4 f3 a5 f2 a6 h3 a7 c3 g5 c2 d3 h2 g6 f4 g7 b3 d4+ Kb4 d5 h4 d6 b2 d7 Kb3 Na3 b1Q Qe2 f3 Nb5 h3 Ba3 c1N Bg2 Qh4 d8B f1B Bde7 f2 Nf3 Bf5 Ng5 Na6 Kd5 Bh7 e5 Re8 a8R Qg6 Rc8 c5 Rg1 h1R e6 h2 Na7 Qh3 Qe5 Be2 Rf1 Bh5 Be4 Ne2 Rad1 Ka2 Rc7 Qg4 Qc3 Rc8 Ke5 Rg1 Rdd7 h1R Qd3 Ra8 Qb5 Rh4 Bb1+ Ka1 Kd5 Nh6 g8Q Bg7 Bd6 Nf5 e7 Bd4 Qg7 Raf8 e8N Rgh1 Nf6 Ne3+ Kc6 Rg1 Nd5 Nc4 Ne3 Na5+ Kd5 Rgh1 Rg1 f1R Bd3 Rb1 Rf1 Nb3 Rf6 Rhe1 Bf5 Na5 Nf1 Bf2 Ke6 Nf4#
KN1br1RQ/1B2R1qp/n1B1R3/1q4B1/Q5r1/3nbr1r/r5pQ/2k1nbN1 w - - 0 1 illegal: No proof kernel
N5Bq/1N1RqQBp/R5n1/1p4QB/n1r3nb/1rq2R1K/1kr1rr2/1bN5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 g4 Kd6 Kg2 Kd5 a4 Kc4 e4+ d3 g5 b5 e5 f5 e6 d5 e7 h3+ Kh2 b3 e8B d4 c3 b2 a5 f3 a6 f4 a7 f2 g6 f3 g7 Nd7 Ra2 Qe7 Qd2 Kb3 c4 Nc5 Qe2 d2 Qe3+ d3 Bf7 d1Q Be8 Qc2 Qe2 d2 Qe6 d1R Bg6 Rd4 Ra6 Na4 c5+ Rc4 c6 Qc3 Bfd3 f1Q c7 f2 Qf7 Bf5 Bh6 Rc8 Na3 b1R a8N Kb2 Bh5 Qfe1 Be4 f1R Ne2 Rf2+ Bg2 Qe8 Rf1 Ne7 g8Q Ng6 Nc1 Be7 Bg7 Bd3 Kg3 h2 Bd5 h1N+ Kh3 Bh4 Be6 Re2 Rf3 Qe7 Qd8 Rf8 Qd5 Qcf6 Qg5 Qec3 Bd5 Rce8 c8R Rc2 Rc7 Nf2+ Kg2 Bf5 Rd7 Ng4+ Kh3 Qfd4 Bh6 Qh8 Bg7 Ka1 Be6 Rb3 Bd5 Kb2 Be6 Re4 Bc4 Rc8 Bd5 Ree2 Nc4+ Kb1 Na5 Kb2 Nb7 Rc4 Qe8 Bd3 Bg8 Rff4 Qf7 Rf5 Re3 Rff2 Rf3 Rcd2 Nd8 Bb1 Nb7 Rc2
3r1q1B/1bRKR1pk/3R1q2/Q2Qbn1B/nb2r2N/1q1n4/1Nn2p2/2NB2n1 w - - 0 1 illegal: No proof kernel
rr2kB2/2p2qK1/rQ1nBn2/1nb1N3/q1R2B2/Q3RR1b/n2p3N/nNb5 w - - 0 1 illegal: No proof kernel
2r2bbb/R1n4q/2pB1N2/1k2B3/1qq1N3/r1b5/Q2n1pnr/KRN1Q1RB w - - 0 1 illegal: No possible last move, all moves rejected
Q1NNQ3/K4NB1/1bp1nn2/2qqrq1r/bbp1Q2R/1B4k1/R4q2/2Br1n2 w - - 0 1 illegal: No possible last move, all moves rejected
2b4k/q1R1npb1/Nq1rq1n1/Q7/Q2p1b1r/2NB1N1n/4RnR1/BrB2K2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 g5 a4 d5 e4 b5 c4 f3 e5 b3 e6 d3 e7 d2+ Kf2 g3+ Ke3 d4+ Kd3 g2 c5 f2 Ke2 b2 c6 g4 h5 b4 c7 g3 a5 b3 a6 Nc6 a7 Ne5 h6 Qd5 h7 Bg7 Ra4 Qe6 Ra5 Ng6+ Re5 Rb8 a8Q Rb6 Qd5 Rd6 Nc3 b1R Nf3 g1B Rh2 g2 Qa5 b2 Qc2 d1N Qb3 Kd7 e8N Ke7 Qba4 Kf8 Bd2 N8e7 Be1 Bb7 c8R Ba6+ Rc4 Bb7 Rc7 Bc8 Rh5 Bh2 Rg5 Bf4 Bd2 Ra1 Bc1 b1Q Bb2 Qba2 Rg4 Rc1 Re4 Qab3 Ba1 Rb1 Re5 Qb6 Re3 Rg8 h8B Qa7 Rc6 Qb6 Nc7 Qa7 Na6 g1N+ Kd2 Qb6 Rc7 Nh3 Bd3 f1Q Rg2 Qg1 Ke2 Ndf2 Re5 Qc1 Re4 Qa3 Re5 Qac5 Re4 Qa7 Re5 Qcb6 Re3 Bgh6 Bf6 Bg7 Bg5 Rh8 Re5 Kg8 Re3 Nd1 Kf1 Rh4 Ree2 Kh8 Bh6 Bg3 Bg5 Ndf2+ Bc1 Bf4
nr4n1/1n2qp2/q3N1r1/k4BN1/rp2Qb1R/4bBq1/1NR3bq/B1K3QQ w - - 0 1 illegal: No possible last move, all moves rejected
bB4rN/nb1n3b/q2p2bR/R2rqb2/3p2Q1/Q3NBR1/2Q1b1B1/K3b1k1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 g4 Ke6 c4 Ke5 Kc2 Ke4 Kb2 h5 a4 b5 a5 f5 g5 b3 g6 h3 e3 f3 a6 b4 a7 f4 g7 f2 c5 h2 c6 f3 c7 h4 Na3 h3 Qe1 Qe8 Qd1 Qe5 Bb5 f1Q Be2 f2 Nc2 Ne7 g8R Nec6 Bc4 Rh5 Ne2 Kf3 Kb1 b2 e4 Bd6 Bg5 Kg2 Bf4+ Rg5 Ka2 b1B+ Kb2 b3 Bd5 Bb4 Ra5 Bb7 c8Q Be1 Qf8 Bc8 Ka1 Bb7 Qa3 Bc8 Ng3 Qa6 Nh5 f1B Ne3+ Kf2 Qg4 Be2 Rg6 Bb7 Rg1 h1B Rg3 h2 Rh6 Bhf3 Qe7 h1B Qa3 Qf6 e5 Bfe4 e6 Qe5 e7 Bg6 e8B Bbf5 Bg2 Kg1 Qc1 Bh7 Qc2 Bfg6 Bf7 Rf5 Bfd5 b2+ Ka2 b1B+ Ka1 Rg5 Bdf3 Bf5 Nf6 Rg8 Ne4 Rd8 Nd6 Bfg6 Qa4 Bbf5 Nf7 Rg8 Nh8 Rd8 Bg5 d6 Qc2 Rg8 Bd8 Nd7 Bc7 Rac8 a8Q Na7 Bb8 Rc5 Qa4 Rd5 Qc2 Nc8 Qa7 Ba8 Qac5 Na7 Qa3 Qf4 Be4 Rc5 Bc6 Qe5 Bh3+ Kf2 Bf1 Bf3 Bg2 Kg1 Bb5 Bfb7 Bbc6 Rb5 Bcf3 Rd5
1k1b3B/1bbp3q/2q3pb/n1nQ2N1/5b2/3rrRbR/1Q2N1B1/1QR2bKN w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 b4 a5 c4 e5 f4 d3 Kf2 e3+ Kg2 a3 h4 a2 b5 g3 c5 d2 b6 e4 h5 e2 h6 e1Q c6 e3 h7 e2 f5 a4 c7 g6 b7 a3 f6 Bh6 Bb2 Ne7 Bc1 Nec6 Qa4 d1B Qa5 Qc3 Nd2 e1B Qa4 Na6 b8N Bb7 c8R Na5+ Ngf3 Be2 Qc4 Nc5 Kg1 g2 Qb3 Bg3 f7+ Ke7 Rh3 Kd6 f8Q+ Qe7 Qff7 Re8 Rb1 a1B h8Q a2 Nc6 Qc2 Rd8 Kc7 Qfd5 Bae5 Ng5 a1B Nd4 Bef4 Bb2 Qh7 Rc1 Re3 Rf8 Rae8 Qb6+ Kb8 Nde4 Rd3 Nf2 Qa4 Qbb3 Qc6 Nh1 Bc7 Rf7 Bcf4 Qg7 Ree3 Bc3 Bc7 Rf3 Bgf4 Qb1 Bb2 Kf2 g1B+ Kg2 Bf2 Qge5 Bd1 Ne2 B2g3 Kg1 Ba4 Bg2 Bb5 Qed4 B5a6 Qb4 Bc4 Bg7 Bf6 Bh8 Bfd8 Q4b2 Ra3 Nd4 Bf1 Ne2 Rad3
2Q3bk/B6n/3b2R1/2nR1r1n/bNn1BQ2/1p1p1R2/qn1B1bK1/b2r2NQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 f5 h4 Kf7 c5 Kg7 e5 d3 e6 d2 c6 f3 c7 b3 a5 g3+ Ke3 d4+ Kd3 b4 e7 b2 e8Q f4 Ke4 d3 a6 g4 a7 f2 h5 f3 Nh3 g2 Qb5 g1B Bg2 f1N Ra6 g3 Nf2 Be6 c8R Bd6 Qa5 Nf6+ Kd4 Nh7 Ke4 Qg8 Rc7+ Nd7 Rc3 Ne3 Rc5 Nc4 Qaa4 Rf8 a8Q Rf5 Nh3 f2 Nc3 b1B Nd5 f1N Qc8 Bf2 Ng1 Bc2 Rh3 Qf7 Qe1 d1N Bd2 Ndb2 Qb1 Re8 h6+ Kh8 Bh1 g2 Rf3 Bd4 Qe1 Bc3 Qh4 Bd1 Qa1 Bb3 Qf4 Ba4 Qb1 b3 Nb4 Qf8 Re5 Bg8 Qa1 Qg7 Rc6 Ref8 Rd5 Qg3 Qc1 Qh2 Qg3 Re8+ Re5 Nd1 Rf4 Bb2 Kf3 Bc7 Be3 Ba1 Ne2 g1B Rd5 Nhf8 h7 Nf6 Ba7 N6d7 Rg6 Nc5 Qg2 Be3 Ng1 Ng3 Qh3 Qc2 Bg2 Qa2 Qh1 Ndb2 Qf1 Bd2 Kf2 Re3 Be4 Nh5 Kg2 Bd6 Qc1 Bc3 Rf3 Re1 Qf4 Rd1 Re6 Kg7 h8B+ Kh7 Rg6 Be1 Bc3 Bf2 Be1 Kh8 Bd2 Nh7
2n2r1n/1N2pQBb/5nn1/pB1QN1R1/1b1rn2r/k2N2rq/1Rr3Q1/K4B2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 d5 g4 Kd7 f4 Kc6 c4 Kc5 Kc2 Kb4 c5 a5 f5 h5 f6 d3+ Kd2 h3 c6 e3+ Ke1 h2 g5 d2+ Ke2 a3 Kd3 a2 Kc2 d4 b3 e2 Kb2 e1N f7 d3 c7 h4 g6 h3 g7 Nc6 Be2 Ng2 Bf1 Nf6 g8B Ne5 Nf3 Bf5 c8N Nh4 Ng5 Qd7 Be2 Bg7 f8Q Nf7 Nf3 Bh7 Rg1 h1N Ne5 h2 Na3 Qh3 Bf1 Nf2 Rb1 a1R Nd6 h1N Nb7 Ng6 Nac4 Ra3 Rg5 Ng3 Qg4 Nge4 Qg2 d1R Qd8 d2 Qd5 Nh6 Bf7 Rhf8 Be8 Nf7 Bb5 Nfh8 Qf7 Re1 Qd5 d1R Be3 Nc3 Bd4 Rac8 Qf7 N2e4 Qd5 Na2 Ka1 Nd6 Nb2 Rc2 Qf7 Ra4 Nbd3+ Ka3 b4 Re3 Qfd5 Rdd2 Rb2 Nc8 Ng4 Rc4 Nd8 Rdc2 Be8 Rf7 b5 Nc3 Qde4 Ng8 b6 Ree2 b7 Re3 b8Q Rf8 Qbf4 Rg3 Nb7 Be5 Qd5 Bd6 Bg7 Rab4 Qff7 Nf6 Nh2 Rh4 Bb5 Nce4 Ng4 Rd4 Nge5 Bb4
7N/B3b1RN/R1B1n2b/6q1/Q2B4/1r1Q1b2/1ppnRN1r/b1nKnkbr w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Kd7 a4 Kd6 d4 f5 h4 c5 e5+ Kd5 e6 Ke4 h5 g5 a5 b5 h6 c3 d5 f3 d6 f2+ Ke2 c4 a6 b3 e7 f4 e8Q+ Ne7 d7 g3 a7 g2 h7 g4 Nf3 g1B Ra3 b4 Ra4 b2 Rh3 c2 Qf7 g3 Rh4 b3 Na3 b1N Rb4 g2 Nd4 Na6 Bb2 c1B Ndb5 Bb7 Qf6 Rb8 a8N Ng6 Rh6 Be7 Bc3 Nh4 Nb6 Nf3 Nd5 Nc7 Bd4 Ne1 Qc6 Nd2 Ba7 Ne6 Nb1 Bb2 Ra4 Ba1 Rh2 b2 Ra6 c3 Qd6 Qg8 d8R Nb3 Rd7 Qg5 Qc6 Ba8 Qd2 f3+ Kd1 Nc1 Nf6+ Ke5 Qdd5+ Kf4 Qd3 Kg3 Nd6 Rb3 Qa4 Bc6 Be2 f1R Nf7 Be3 Nd2 f2 Bf3 Rh1 Bd5 f1N Nde4+ Kf3 Nf2+ Kg3 Be4 g1B Bf3 Ba8 Bc6 Nd2 Rc7 Rg8 h8B Rc8 Bg7 Rh8 Nh7 Bb7 Rh4 Ba8 Re4 Kg2 Bgd4 Rh2 Qb1 Kf1 Rd7 Bf4 Re2 Rh1 Qd3 Rh2 Bb5 Bf3 Bc6 Rh1 Nf8 R8h2 Nh7 Qd5 Nh8 Bh6 Rc7 Qg5 Rd7 Bef8 Rf7 Be7 Rg7 c2+
bqn1N3/8/b2R3N/1R3Kb1/1BQq3N/1r3ppb/b3B1Rb/krrQQn2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 c6 b3 e5 b4 h6 b2 h7 b3 c7 Be7 e6 Nc6 Qe2 d1Q Na3 Kc3 Nf3 b1B Rh3 b2 Qa6 d4 Nc2 d3 Nd2 f3+ Kg1 f2+ Kg2 f4 Qa4 Ba6 c8Q Rb8 a8N Nf6 Ra3+ Rb3 Nc7 Na7 Ne3 Nd5 Nf5 Ba2 Be2 b1R Rh6 Bg5 Nf3 d2 e7 Qe8 Qcd7 Qb8 e8Q Nc8 N3h4 Rf8 h8R f1B+ Kg1 f3 Rd6 g2 Kf2 g1B+ Kg3 Ne3 Rh5 Bh3 Nh6 Rf4 Qee7 Rc4 Ne8 Bb7 Qac6 Ba8 Ra5 Kc2 Ba3 Rcc3 Bc5 Kb2 Rb5 Rcc1 Bb4 Ka1 Qc4 Bh2+ Kf2 Qc2 Qee4 d1B Qee6 Bg1+ Kg3 Qd2 Qe5+ Qb2 Qec3 Bc2 Qe1 Bce4 Qd8 Beb7 Qd7 Ba6 Qd8 Be7 Kf4 Nf1 Rhd5 Qh8 Rd2 Qd4+ Kf5 Bh2 Bd3 Qb2 Rg2 Bg5 Be2 Qh8 Qe7 Qg7 Qd1 Qd4 Qe3 Bgf4 Qed2 Bg5 Q2e1 g3+
Rrnr4/B1QQ2Nk/n2N1r2/qp2nnRp/B1Rb1N1n/8/1r4b1/Bb1K4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Kg6 c4 h5 a4 b5 f5+ Kh7 c5 d5 c6 e5 f6 d3 f7 e3 a5 h3 g5 d4 a6 e4 a7 h2 c7 b3 Ra3 d2+ Ke2 b2 Nh3 Bb7 c8N Ne7 Nc3 b1B Bg2 Bg7 f8B Qa5 Na4 Na6 Rd3 Rb8 Nd6 Nc8 Rg1 h1R a8R Rh2 Bb2 Be5 Be7 Rf8 Ba1 Rf6 Nc5 Bc6 Qc1 d1N Rc3 d3+ Ke1 e2 Nf4 Bd4 Bf3 Rg2 Nce6 Ne3 Ng7 Nf5 Kd2 e1N+ Kd1 d2 Rc4 e3 g6+ Kg8 Be4 Nf3 Bc2 Ne5 Ba4 Rh2 Rg5 Bg2 Bd8 Kh8 Bb6 Kg8 Ke2 d1R Ba7 Rd3 Qd2 Kh8 Kd1 e2+ Kc1 e1N Kd1 Rb3 Qc3 Rb2 Qg3 N1f3 Qh3 N5h4 Qd7 Nf5 Qd8+ Rf8 Rc2 N5h4 Nge8 Bh3 g7+ Kh7 Ng6 Rf2 Qc7 Nh2 Rc4 R2f6 Nf4 Nf1 g8Q+ Kh6 Rg1 Ng3 Qgf7 Ngf5 Rg5 Bg2 Ng7 Rd8 Qfd7 Kh7
nbN1nR1n/1R1r1bp1/1R1q1p1N/Q1bbQ3/1B6/6n1/1nKrB1k1/1rQB4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 c4 Ke5 h4 Ke4 e3 b5 h5 d5 a5 g3 a6 b3 h6 f6 a7 d3 h7 f3 c5 b4 c6 g2 c7 f2 Rh3 d4 Bb2 Bd6 Ra6 Bb7 c8Q Bd5 Ra4 Nd7 Rh6 Nb6 Qdc2 Ne7 Nh3 Kf3 e4 g1B e5 Bb8 e6 Qd6 Ra2 Ng6 e7 Rd8 h8R Rd7 Ba3 b2 e8B b3 Rf8 Nh8 Be2+ Kg2 Nc3 b1R Ne4 b2 Qc1 f1N+ Kd1 d2 Qc3 Ng3 Rh4 Bf2 Kc2 d1N B8h5 Bf7 Qe1 Nc3 Bb4 Nb5 Nhg5 Nc7 Ra6 Ne8 Qc3 Bd5 Nf7 Be3 Nh6 d3+ Kd1 d2 Qe5 Bd4 Kc2 d1N Rf4 Bf2 Rf3 Bc5 Rb3 Bc7 Bhg4 Rad8 a8Q Bb8 Qa7 Na8 Rb6 Ra1 Qa5 b1B+ Kd2 Ba2 Kc2 Rb1 Rb2 Qc7 Nd6 Qc6 Nc8 Qd6 Rb7 Bac4 Rb3 Nb2 Bd1 Bf7 Bge2 Bcd5 Bd2 Re7 R3b6 Rdd7 Bb4 Re6 Qh5 Re3 Qf5 Rd3 Qe5 Rd2+
1k1r1r1K/2r2p1B/5QQn/Br4BR/2Q1q2r/N1p2nR1/2q1r1b1/bb3R1N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 h5 Ke4 b5 Ke5 c5 g4 Kc7 d4 b3 a4 f3 e4 b2 g5 f2 a5 h3 a6 c3 g6 h2 g7 c2 a7 h4 d5 c4 Bd3 f1R Ra3 b4 Nh3 b3 Ra5 Rf2 Na3 b1R Qg4 b2 Qg6 Bb7 Bg5 c1R Rf1 Re2 Nf2 h3 Nh1 Qc8 Bc2 Bc6 d6+ Kb7 Qf6 Nd7+ Kf5 Qc7 e5 Rd8 a8R Bg2 e6 Ne5 d7 Nf3 e7 Qc6 R8a7+ Kb8 e8Q Bd6 Rc5 Be5 Qee6 Qa4 Bd3 Qc2 Ra6 Rf8 d8B Rh4 Bb6 Rd1 Be4 Rdd8 Ba5 Rc1 Rd6 b1B Rd3 Ba1 Qd5 c3 Qc4 Rd1 Re3 R1d7 Bd3 Rc7 Rd5 Ne1 Rg3 Nf3 Qfa6 Nf6 g8Q Rh5 Qg6 Ng8 Qaf6 Rh4 Nf2 h1R Rc5 Rg1 Nh1 h2 Qfd4 Ne7+ Kf6 Ng8+ Kg7 Ne1 Nf2 h1Q Qdf6 Nf3 Bf5 Qh3 Nh1 Qg4 Qh5 Qge4 Kh8 Ne5 Bh7 Nf3 Re1 Rf1 Qhg6 Rg1 Rc1 Rgd1 Rf5 R1d5 Rf1 Re5 Bh6 Red5 Rh5 Rb5 Bg5 Nh6+
2n4b/k2bBp1q/BNb1N1Q1/r2r2N1/rbnp3r/1RB5/3n4/RrQ2QK1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 h4 d5 c4 Kd7 e4 Kc6 e5 Kb6 c5+ Ka7 a5 d3 c6 f3 c7 b3 a6 g3+ Ke3 b2 h5 d2 e6 g4 e7 f2 e8N g2 h6 b4 h7 b3 Ra5 g3 Qc2 d1R Rh4 Bb4 Qd2 Nd7 Qd3 Ne7 Nh3 g1R Nd2 b1B Qg6 g2 Ng5 b2 Rh3 Be4 Ra1 b1R Ba3 Ne5 Ng7 Bd7 c8Q Qg8 Qc1 Nc8 N7e6 Nc4+ Ke2 Rh1 Re3 g1B Rb3 Bf5 Kf3 Rh4 Kg2 Bc6 Be2 f1N Bd3 Ba5 Be7 Bd4 Be2 Bf6 Kg1 Bb4 Bd3 Qg7 Be2 Rf8 h8B Qh7 Bg7 Bb2 Bc3 Rd8 Bd3 Rd7 Be2 Rb7 Bd3 Rb5 Be2 Ra5 Bd3 Ne5 Nc4 Bh3 Nb6 Nc4 Nd4 Bhd7 Nde6 Kb8 a7+ Kb7 Bd2 Bh8 Bc3 Ka6 Qf6 Nd2+ Qf1 d4 Be2 Re1 Bd3 Re5 Be2 Rd5 Bd3 Rb8 a8Q+ Kb5 Qa7 Ra8 Qb8 Ka6 Qg3 Ka7 Qgg2 Ne5 Ba6 Nec4 Qe4 Ra4 Qg6 Kb8 Bb5 R8a5 Ba6 Ka7
3N1RBn/2p1n3/b1B5/b1kb2K1/1q2Q1b1/2p1N1B1/bQ1R2b1/rQ1Nrr1q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 e4 f5 d4 b5 a4 h5 g4 b3 d5 c3 e5+ Kc5 g5 b2 d6 h3 a5 b4 e6 h2 a6 b3 d7 h4 e7 h3 e8Q Qe7 d8Q Nd7 a7 Ba6 Na3 b1B g6 b2 g7 Ba2 Nc2 b1B Ne3 Rh4 Qb8 Ne5+ Kf2 f3 Kg3 f2 Qb2 Rf4 Bc4 f1B Qg6 Re8 a8B Bg2 Bc6 Rf1 Qh7 Qd6 Kh4 f4 Qe4 f3 Kg5 Ne7 g8N f2 Nh6 N5g6 Bg8 Nh8 Nf7 Bc2 Qdd3 Bd1 Qdb1 Bg4 Nd8 Rd1 Bd2 f1R Be1 Qd4 Bg3 Qb4 Nf3 Rc1 Nd2 Rce1 Rg1 h1B Ndc4 Rc1 Nd1 h2 Qe6 Bd5 Nce3 Bhg2 Qeg6 h1Q Qge4 Bab3 Ra2 Bbc4 Q1c2 Ra1 Qbb1 Bb3 Rb2 Ba2 Qcc1 Bg7 Rd2 Bd4 Qcc2 Ref8 Qcb2 Re1 Rf1 Rf3 Rff2 Rf7 Rfe2 Rff1 Rf2 Kb6 Bb7 Kb5 Rf8 Bb6 Ba8 Kc5 Bc6 Ba5
1kbQ2N1/1q6/1Br1Q1nr/rn6/QnRKp2N/NqnBRr2/rp6/bB6 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 f4 Kd7 a4 Kc7 g4 b5 c4 h5 f5 e5 f6 h3 a5 h2 c5 h4 a6 b3 a7 b4 c6 h3 g5 d3 Ke3 d2 g6 d4+ Ke2 b2 f7 e3 Kd3 e4+ Kc4 b3 g7 d3 Ne2 Rh6 Ra4 Ne7 g8B Ng6 Ng3 e2 Rg1 e1R Rb4 h1R Qf3 d1Q Na3 b1N Be3 h2 Be2 d2 Qf1 Bg7 f8Q Na6 Qh3 Ba1 Nf5 b2 Rg3 Qd7 Bd3 Rhf1 Nh4 h1R Qe6 Rf3 Rh3 Qf7 Kd4 Nc3 Rc4 Qb3 Qb4 d1N Qa4 Rhf1 Bg1 Rf5 Re3 Ra5 Bf2 Nb4 Bb1 Kb6 c7+ Kb7 Bg1 Rf3 Bd3 Bd7 c8N Re2 Bb1 Rc2 Ne7 Qh7 Bf7 Bc8 Ng8 Nb5+ Kc5 Rb8 a8Q+ Kc7 Qad5 Rba8 Qd8+ Kb8 Be8 Qb7 Bd7 Nd6+ Kd4 R8a7 Bb5 Rc3 Rc7 Rc6 B5d3 Nc3 Bf2 Rca6 Rc5 Rc6 Rc4 Ne8 Nb5 Ka8 Qa2 Nh8 Re2 R5a6 Ke5 Kb8 Bb6 Ng6+ Kd4 Nc7 Re3 Ra4 Qa3 R7a5 Qa2 Qc2 Qb3 Ra2 Qa4 Qb3 Na3 N7b5+
1n1n4/4k1NB/NRQ1Nb2/2r1r3/pq1B2R1/bq2nB2/b1n1p1Kb/1n1R1Q2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 e5 Kf2 d5 b4 a5 c4 h5 g4 d3 g5 d2 c5 e3+ Kf3 e4+ Kg2 a3 g6 a4 f5 h3+ Kg3 h4+ Kh2 e2 c6 e1B c7 a2 g7 e3 b5 e2 b6 d4 b7 d3 f6 Nh6 g8B Qd4 f7+ Ke7 Bh7 Qb4 Bg8 Be6 c8Q Ra5 Nf3 Re5 Ng5 Bg3+ Kg1 h2+ Kg2 h3+ Kf3 Bf4 Qe1 d1N Rg1 h1Q+ Bg2 h2 Rf1 d2 Nc3 Ne3 Bb2 d1N Nce4 Nc3 Rg1 Nb1 Qc6 Nc2 Qf1 Bc4 Bh7 Rg8 Ne6 Rgg5 Nd6 Rc5 Kf2 Rge5 Bd5 Qb3 Bc3 Qe4 Rg4 h1N+ Kg1 Ng3 Ne8 Qd4+ Kg2 Ngf5 Bf3 Bh2 N8g7 Bd5 Nc7 Qdb4 Bd4 Be6 Na6 Nfe3+ Kh3 Nba3 Rd1 a1B Nh5 Nb1 Ng7 Nd7 b8R Bb2 Rb5 Nb8 Rb6 Ba3 Nh5 Bg7 f8N Bf6 Ng7 Bd5 Nfe6 Nf7 Nf8 Nd8 Nfe6 Qb2 Bc3 Ba2 Bd4 Nf5 Kg2 Q2c3 Rg6 Qcb3 Rg4 Nfe3+
Qq2n1r1/Q7/r2n2NN/2RBRpBK/brb5/2kbbN2/Br1p1Rq1/7r w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 a4 Kc4 e4+ d3 c3 h5+ Kf5 d5+ Ke5 f5 g4 b5 g5 f3 Kf4 b3 e5 f2 g6 d4 e6 h3 g7 b2 e7 b4 Kg5 b3 a5 h2 a6 h4 a7 h3 Qc2 Ba6 Ra5 Nd7 Qe2 Qb8 e8Q Ndf6 Ra2 Ne7 g8N Nc8 Nh6 Bc5 Q2e7 Nd6 Ne2 d2 Nf4+ d3 Ng6 d1B Kh4 Rg8 Bg5 Be3 Nd2+ Kd5 c4+ Kd4 c5 b1R c6 b2 c7 Bc4 c8R Kc3 Q7f7 Ba4 Nf3 d2 Rc5 Qb7 Qb8 Nfe8 Kh5 Qb5 Rg1 h1Q Rg2 h2 Bd3 f1R Rf2 Qg2 Qd8 Rb8 a8B Rfe1 Qa7 h1R+ Nfh4 Qb3 Bd5 Rb4 Qda8 Ra1 B3e4 b1B Be6 Bc2 B4d5 Reb1 Ra3 Rb2 Bf7 Bc6 Raa5 Bd3 Rab5 Ra6 Bfe6 Rc1 Nf3 Bd7 Rb7 Bb5 Re7 Ba4 Bf7 Re1 Re5 Rh1+ Nfh4 Rb7 Be4 Qb6 Be6 Qc7 Bf7 R7b4 Be6 Qb8 Bf7 Kd4 Be6 Bcb5 Ba2 Bbc4 Bd5 Rf1 Nf3+ Kc3 Nh2 Rg1 Nf3 Rh1+
2bR4/3bnr1k/b1q1B1n1/p2nB3/B2bNQ1N/r2Q2RN/2pQ3b/q3nK2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 h5 b4 c5 d4 f5 e4 Kf7 e5 Kg7 g5 a3 b5 a2 b6 h3 g6 h4 e6 f3 d5 f4 d6 c3 b7 h2 d7 h3 e7 c2 e8Q c4 Bd2 c1N Bg2 f2+ Kf1 c3 Qh5 c2 Be1 Qa5 d8N Bd6 Qee2 Ne7 Qg5 Nd3 Qe3 Rh7 Nf7 Nbc6 b8Q Nce5 Bb4 Ne1 Ke2 f1N Qd3 Ne3 Nc3 N3d5 Ne4 f3+ Kf1 f2 Rd1 a1B Nh6 Bd4 Qgd2 Qa1 Nf5+ Kh8 Bf3 Rf7 g7+ Kh7 Nh4 N5g6 Bc3 Bg3 Qbf4 a6 Ne2 Bd7 Rg1 h1B Bh5 Bh2 Rg3 Bf3 Ng1 Bfg4 Bb2 Bc8 Bc3 Bgd7 Bf3 a5 Bg4 Rb8 Be6 Rb3 Bb2 Ra3 Bc3 Nb4 Bb3 Nbd5 Ba4 Be3 Be5 Bd4 Rg5 Bg3 Rg4 h2 Nh3 h1Q+ Ng1 Bh2 Rg3 Qf3 Nh3 Rf6 Qa6 Qfc3 Qad3 Qc6 g8B+ Kh8 Be6 Kh7 Rb1 Rf7 Rb8 Ba6 Rd8 Bb7 Q3e3 Bbc8 Ke2 f1B+ Kf2 Bfa6 Qd3 Rg7 Kf1 Rf7 Qc1 Be8 Qd2 Bed7
1NB2B1k/q4b2/b1bR1qr1/p5Qn/r4R2/1pnNb3/1b3rK1/rRBQ2N1 w - - 0 1 illegal: No proof kernel
1nnb4/3Q1qbK/r1b2pR1/b3q1Bk/8/qNR1r1Q1/p6b/1RQqNBB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 d5 h4 a5 c4 f3 b4 g3 e4 f2 h5 g2 h6 a3 b5 g4 b6 a2 c5 g3 b7 a4 e5 a3 e6 Qe7 c6 Bd7 h7 Ra6 c7 Bc6 Qc2 Bg7 Be2 f1Q Nh3 g1B Bh6 g2 Bf4 Bh2 Nd2 g1B Rb1 a1B Nb3 a2 Be3 Qa3 e7 Bc3 Ng5 Ba5 Nf3 f6 c8R+ Kf7 Ne1 Kg6 Bg5 Qf4 Qc1 Qe5 Bf1 Kh5 Rc7 Be3 Rg1 Bed2 Rc8 Bd8 Rg4 B2a5 Rg1 Qc7 e8Q+ Qf7 Qd7 Ne7 Rg2 Re8 h8Q+ Kg6 Rc7 Nc8 Qhh3 Re5 Qg3 Kh5 Rg1 Re3+ Kc2 Ba4 Rc3 d3+ Kd2 d4 Rg2 Nc6 b8B Bb5 Ba7 Nb8 Kd1 d2 Kc2 Bc6 Rg1 Re7 Kd3 d1Q+ Qd2 Qg4 Qc1 Qf4 Bc5 Re5 Bb6 Rd5 Ba7 Qc7 Ke4 d3 Rg2 d2 Bg1 Rd3+ Kf5 Qff8 Ke6 Qfc5 Kf7 d1Q Kg8 Q5e5 Kh7 Re3 Bh4 Qcd6 Qf4 Qa4 Rg6 Qf8 Qg3 Qaa3 Bg5 Qf7
nQ1q2bQ/K1r2q2/2p2q2/NR1r4/3b1QRb/nNb3b1/1BqR1p2/1k2B2B w - - 0 1 illegal: No possible last move
k2BN2n/1r1p2q1/p1N2r1r/2Q3QB/2q2Qn1/3BNb2/RRbb1K2/1rbb4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 f5 e4 h5 b4 d3 g4 d2+ Ke2 a3 c5 f3+ Kf2 a2 g5 h3 c6 h2 g6 h4 g7 f4 b5 a6 c7 h3 e5 Nc6 e6 Nge7 g8B Bb7 c8Q Ng6 e7 Rh6 b6 Nh8 Bh7 Ne5 Qb8 Be4 b7 Ra7 Ba3 Bc2 Bfd3 Ng4+ Kf1 f2 Qc1 d1B Qe5 Rf6 b8Q Rb7 Qeb2 Bh6 Qc3 Qc8 Qbe5 Qc4 Qcd4 Qf7 Qee4 Qg7 Nf3 Bg5 Rg1 h1R Bd6 h2 Nc3 Bh6 Rb1 a1B Ne5 Bb2 Qc5 Bg5 Kg2 f1R Nc6 f3+ Kg3 f2 Nd5 Rh6 Bc7 Bd2 Rg2 Rhg1 Ne3 h1B Bd8 Ba3 Kf4 Bb2 Rh2 Bhf3 Qed5 Rh1 Kg3 Rf6 Rg2 Rhh6 Qg5 Rfh1 Ra1 f1Q Ra2 Qe2 Nf5 Qe4 Ne3 Qc4 Be2 Re1 Bhd3 Reh1 Qa1 Bbc1 Qae5 Kf7 Qef4 Ke6 e8N Rg1 Bg6 Re1 Bh5 Rg1 Qa3 Rf1 Bd3 Rg1 Nf5 Kd5 Rb2 Rf1 Qc5+ Ke6 Qb8 Ba4 Qe7+ Kd5 Qc8 Rb4 Rf2 Be1 Ra2 Bde2 Qc7 Bb2 Qg6 Bec3 Qg5 Rb1 Rh2 Bc1 Na7 Bed1 Rhb2 Bac2 Qcf4 Rb5 Qb4 B3d2 Qa5 Kc5 Qa3+ Rb4 Nc6 Kb5 Nc7+ Kb6 Ne8+ Kb7 Ne3 Rb5 Qf8 Ka8 Qfc5 Ne5 Kf2 Ng4+ Kg1 Rb7 Kf1 Nh2+ Kf2 Ng4+
1b3Q1r/3RrB1N/nQ1Qbqn1/2b5/1n1B1qNN/1npp2q1/3b4/1BRK1k2 w - - 0 1 illegal: No proof kernel
Nb2RRrr/kr1Q4/4N1q1/2n1n3/bpB3b1/2q2R2/bp2QQnN/2n1BK2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 b5 c4 h5 g4 d5 a4 Kd7 g5 Kc7 g6 Kb7 a5 f5 g7 f3 a6+ Ka7 e5 b3 c5 f4 e6 b2 e7 h3 e8R d3 c6 b4 c7 h4 Qc2 d4 Re2 h2 Qd1 d2+ Kf2 h3 Re3 d3 Qc2 d1B Na3 d2 Re4 Nh6 g8Q Qd3 Re7 Bg4 c8Q+ Nd7 Qg5 Qg6 Re1 Nc5 Bd3 Nf7 Qe8 Ne5 Be4 Bd6 Qh5 Bb8 Qc3 Ba4 Qe3 d1R Kf1 f2 Nf3 Rd7 Bd5 Rb7 Nc2 Rg8 Rg1 h1Q Qd7 h2 Bc4 Rh8 Ra3 Rg8 Ng5 Qf3 Nd4 h1B Nge6 Qg3 Re2 Bd5 Nf3 Rh8 Qd4 Rg8 Nh2 Qc3 Bd2 Rh8 Bd3 Ba2 Be1 Rg8 Bc4 Rh8 Kg2 f1N Qf2 Nd2 Rf1 f3+ Kg1 Nb3 Re4 Kb6 a7 Nc1 Re2 Bc7 Rb3 Rag8 a8N+ Ka7 Re4 Qd4 Rbe3 Bb8 Rf4 Qc3 Rf8 Qg5 Qhf7 Qh5 Qe2 f2+ Kg2 Qg6 Rf3 B2b3 Rg1 f1N Re8 Ng3 Rgf1 Nh5 R1f2 Nf4+ Kf1 Ng2 Qf4 Qg7 Qfd2 Qh6 Rff8 Qf6 Rf3 Ba2 Qf2 Qh6 Qde2 Qg6
Bqn1Q2b/bQR1qr2/2NB2K1/Rn1rp1bN/2n4p/2n5/N1B2Qb1/q6k w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 b5 a4 c5 g4 h5 d4 e3 f4 Ke4 d5 e2 a5 e1Q f5 b3 d6 b4 d7 h3 a6 c3 f6 h2 f7 c4 a7 h4 Bd2 c2 Ra3 c1B Be2 c3 Bf4 b2 Qd2 b3 Ba6 c2 Ne2 Kf3 Qd6 Kg2 Nd2 b1N Nf1 b2 Ra2 Be3 Kf5 c1B g5 Nc6 g6 Ne5 g7 Nc4 Qc7 Nc3 Ng1 Rh7 Kg6 Bb7 Ra5 b1N Ng3 Nb5 N1e2 N1c3 Bd6 Qb8 d8N e5 Rf1 h1Q Nc6 Bg1 Rf3 Bg5 Nh5 Qa1 Nc1 Bfe7 f8Q Bef6 Na2 Ne7+ Kf7 Nc8 Kg6 B1e3 g8Q Bh8 Rf7 Bg1 Re7 Rf7 Qb6 Qh3 Rc7 Kh1 Qgg7 Bf2 Qe8 Qd7 Qf6 Bfe3 Qf4 Qe7 Qf2 Nba3 Bb5 Bd4 Ba4 Nab5 Nd8 Bg2 Bc2 Qb7 Qa6 Rb8 a8B Ba7 Nc6 Qb6 Rd7 Qc7 Qab6 Rb7 Qa6 Qb8 Rc7 Rb6 Qb7 Ra6 Ra4 Ra5 Ra3 Nd4 Ra4 Rd5 Ra5 Ndb5
2B3RN/n1r5/1Bp2b2/rbqNRn1k/2r3rp/K3Q2q/1n3Qb1/2B1N1Rb w - - 0 1 illegal: No possible last move
2r2R2/1n1rqbR1/1pnR1BQ1/1Q1p1B2/1rn2rq1/5N2/kn2Bb1N/q1K4Q w - - 0 1 illegal: No possible last move
rR1n4/4Q1q1/p2Np1Qn/2RB1bBb/2Q2b2/kqNRq1qK/2b5/2n1B1r1 w - - 0 1 illegal: No possible last move
B1R1N2Q/4nR1p/3pN1B1/5q2/1q3q1K/2nk1qrN/1Br1rbQ1/1Rnb2n1 w - - 0 1 illegal: No possible last move, all moves rejected
KRr2kn1/b1Rn1pN1/3q4/8/Qqq1BN1p/q1b1rBQr/7Q/BN1b3b w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Na3 h3 Kf2 h5 Kf3 b5 Ke4 c5 d4 f3 g4 c3 d5 f2 d6 h2 Kd5 c2 e4 h4 g5 b3 e5 b4 e6 c4 e7 b2 g6 b1R g7 b3 Nh3 b2 Be2 Nh6 g8Q Ba6 Bf3 f1Q Bd2 c1B Bc3 Kd7 e8N Bd2 Bf6 Rc1 Rb1 c3 Qe2 c2 Qg3 Bb5 Ng7 Ba4 Nf4 Rd1 Rc1 b1Q Ba1 Be7 Rg1 Re8 Rg2 Qbb6 Nb1 Ng8 a3 Qb7+ Kc5 Bb3 a4 Bf8 a5 Re3 a6 Ba5 Nf5 Ke8 a7 Rd2 Qef2 h1B Qg1 Bg7 d7+ Kf8 Rf2 Bf6 Ng7 Qe4 Re2 Bd4+ Kb5 Qe1 Rg2 Qde7 Re2 Qa3 d8Q+ Qe8+ Qd7 Qd8 Qc6 Qdd6 Be4 Nd7 Ka6 Re8 Kb7 Rc8 Qa4 Bb4 Rg2 Rf2 Q3h2 Rff3 Rg5 Qc3 Rb5 Rh3 Qgg3 Bbc5 Bf3 Qcb4 a8B Bb2 Rb6 Bcd4 Ka7 Bc5 Bae4 Bcd4 Rd1 c1Q Rd2 Bd1 Rc2 Bc5 Rc3 Bd4 Rc7 Qcc4 Kb7 Bbc3 Ka7 Be5 Rb8 Bed4+ Ka8 Ba7
2Nn1r1k/1p1n1r2/N2r1q2/b3rRq1/1Bn5/1QRBp3/n1Q5/Rb1Kq1NB w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Kg7 a4 e5 c4 d5 a5 h5 c5 h3 c6 b3 f5 h4 a6 d3 g5 d2+ Ke2 e3 g6 h2 a7 e4 c7 b2 Nc3 b1N Nf3 h3 Ra4 d4 Ra5 Na3 Nb5 Ne7 Nh4 Nc4 Nd6 Rh7 f6+ Kh8 f7 Nd7 Rf5 Nc6 Rg1 h1Q Rd5 h2 Qb3 d1N Nf3 d3+ Ke1 e2 Rc5 Qg2 Ba3 h1R Bb4 Qgg5 Nb5 Rb8 a8Q Qdf6 Qaa2 R1h5 Qac2 Nc3 Rh1 Na2 Ng1 Be7 Bg2 Nd8 f8R+ Kg7 Rf7+ Kh8 Rf5 Bc5 Bf1 Bb6 g7+ Kg8 Bg2 Ba5 Rh3 Ra8 Bh1 Rb8 Re7 Ra8 Re6 Rb8 Ra6 d2+ Kf2 d1R Rc3 Rd6 Ke1 Kf7 g8B+ Kg7 Bf7 Kh8 Bg6 Re7 Bh7 Re5 Bg6 Rh7 Ra8 Rf7 Ra7 Ndb6 Bh7 Be6 c8N Nd7 Nc7 Ra8 Na6 Rb8 Kf2 e3+ Kf3 e1Q Bg6 Qeg3+ Ke2 Bd5 Kd1 Be4+ Qd2 Bb1 Qd3 Rc6 Qdc2 Ra8 Bh5 Q3h4 Be2 Rd6+ Bd3 Ne6 Nb6 Raf8 Nc8 Nd8 Qa4 Bb6 Nc7 Nc1 Qab3 Qf2 Ra3 Ba5 Ra1 Na2 Na6 Qe1+
Rn1bB3/p1N2R1N/q1bBr2N/2Q2n2/r1r3p1/1nr1QBn1/k2KR3/r3r3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 Ke7 e4 Kd6 b4 f5 h4 g5 h5 d3 h6 f3 b5 Kc5 e5 Kb4 h7 d5 e6 f4 c5 d4 c6 f2+ Kd2 a3 b6 g3 e7 a2 e8B f3 b7 g2 c7 g4 Qc2 Be7 Ne2 g1R Bg2 f1N+ Kd1 d2 Na3 f2 Ng3 Bd7 c8R Bc6 Qc5+ Kb3 Nc2 Qd6 Nh5 Nh6 Ne3 Nf5 Bd7 Re8 h8Q Bd8 Nf6 Re6 Bf3 Rg3 Be8 Rh3 Qh5 N1g3 Re1 f1R Ba3 Rfh1 Rc1 a1N Qg5 Ka2 Nh7 Nb3 Qh6 R1h2 Re2 Rg2 Kc2 d1R Bb4 Rdh1 Rf1 d3+ Kc3+ d2 Rff2 Ng7 Nf5 Ra1 Qhe3 Rgh2 Kc2 d1R Nh6 N7f5 Ba3 Re1 Rf1 Nd7 b8N Rg2 Na6 Nb8 Nc7 Rf2 Bd5 Rf4 Bf3 Ra4 Rff2 Nd7 Rf1 Rb8 Rff2 Rbb4 Ra8 Nb8 Rf1 Bd5 Rff2 Qa6 Rf1 Bc6 Rff2 Nbd4+ Kd2 Rc4 Qa5 Rac1 Bd6 R1c3 Qc5 Rhh1 Bg2 Ra1 Rf4 Rhe1 Bf3 Ne7 Rf6 Nef5 Rf7 Nb3#
7B/rn1b3B/1N1bnq2/Bb2N1QQ/b1ppKQ1r/r4R2/p1R2n2/3k1b1N w - - 0 1 illegal: No proof kernel
2Q2b2/3p4/8/Rbr2KB1/1qN1bBN1/npkB3Q/2rnnpNR/b1Q3rb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Kc5 c4 g5 h4 b5 h5 f5 e5 d3 a5 Kd4 a6 f3 Kg3 f2 c5 f4+ Kh2 b3 c6 g3+ Kh3 g2 Kg4 b2 c7 d2 e6 f3 h6 b4 e7 b3 e8N Bb7 c8Q Nc6 h7 Nf6+ Kf5 g4 a7 g3 Ra6 Qa5+ Bb5 f1B Rh4+ Ne4 Qe1 d1B Rf4 Qb4 Ba4 Bb5 Nh3 g1B Rh4 g2 Nd2 b1N Nf6 Na3 Nf4 Kc3 Ng4 Bd4 Rh2 g1R Ra5 f2 Ng2 Bf3 Nc4+ Nd2 Qe6 Rb8 a8Q Bd5 Qe1 Rg8 h8B Rg6 Bf6 Rg5+ Kf4 Rh5 Bg5 Bdg7 Qa6 Nd4 Qae6 Ne2+ Kf5 Ra8 Qd1 Ra6 Qh6 Rc6 Qh8 Rc5 Qh7 Rh6 Bf4 Rhc6 Qh3+ Nf3 Bce3 Nd2 Qa1+ Kd3 Qc1 Ba1 Nd6 Rc2 Nc4 Kc3 Bg5 Rc5 Bgf4 B5a6 Bb5 Ba8 Nce5 B8b7 Bd3 Bb5 Bg5 B7c6 Bef4 Bb7 Nh4 Bh1 Ng2 Bd5 Nc4 Be4+
2Q1Q1r1/N1rpnbb1/2N2R2/1p5n/BBknKp1b/2qN4/n6n/R2Q2rB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Kc5 c4 g5 h4 b5 h5 f5 e5 d3 a5 g3+ Kf3 b3 a6 g2 a7 b2 h6 g4+ Kf2 d2 e6 f3 Ke3 g3 h7 f4+ Kd3 f2 e7 Nc6 e8Q Bg7 Qee2 Nf6 Nc3 b1R Rh6 Bb7 Nd5 Qa5 Ne7 Rac8 a8B Nh5 Ke4 Qc3 Rf6 Rhg8 h8Q Rc7 Nf3 g1B Ne1 g2 Bb2 Kb4 c5 Bh2 Qe3 g1N Bc4 f1N Bb3 Bg3 Ba4 Kc4 Ba3 Ne2 Nd3 Bh4 Bb4 Ned4 Qee1 Nh2 Qe3 Ne5+ Nc6 Ng6 Qee2 Rb8 Qc8 Ne7 Qg1 d1N Qg6 Ne3 Qge8 Rg1 Qd1 N3d5 Nd8 Qb2 c6 Nc3+ Ke5 Na2 Ke4 Ba6 Bb7 Qc3 Ba8 Ra7 c7 Bb7+ Nc6 Qc1 Qcd8 Ne2 c8N Ng6 Qe5 Ra5 Kf5 Nf8 N6e7 Qc3 Re6 Bd5 Rf6 Bf7 Bh1 Ra7 Ke4 Rc7 Nc6 Nd4 N8a7 Ng6 Qh8 Re8 Qe7 Rf8 Qd8 Ne7 Qc8 Rd8 Qg8 Be6 Qf7 Rg8 Qfe8 Bf7
rbRR1bB1/qb1r2B1/1Q1Q3n/5K1N/3qN2R/b2kp3/1Qpbr2p/5Nn1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kd4 b4 a5 g5 h5 b5 c5 g6 c3 g7 e3 f3 h3 d3 e5+ Kg3 c4 f4 e2 b6 e1B+ Kf3 e4+ Ke2 a3 f5 c2 b7 c3 f6 a4 f7 h4 Bh6 c1B Qd2 a2 Qb2 e3 Kf3 h2 Kf4 h3 Nd2 a3 Ne4 Nd7 b8Q Bed2 Kf5 Rh7 Bg2 Bb7 Nf3+ Kd5 d4 Kc4 d5 c2 d6 Ne5 d7 Kd3 Rb1 a1Q Qb6 Qe7 d8R+ Qd4 Rc8 Bb2 Rbd1 a2 Q8d6 a1B Qdb4 Ba3 Qb2 Nf6 g8N Nfg4 Ngf6 Qc7 Bg7 Nh6+ Ke6 Qb8 Nh5 Qa7 Kf6 Bfd6 f8Q Bb8 Rhf1 h1R Nh2 Rg1 Rf4 Re1 Qfd6 Re2 Nf1 h2 Rh4 Nf3+ Kg6 Ng1 Bh3 Rh8 Be6 Rd8 Bg8 Rd7 Qc1 Bc3 Qcb2 Ng4 Kf5 Bcb4 Qg6 Bf8 Qgd6 Bc5 Ra1 Bcb4 Ra5 Bc5 Rd8 Bcb4 Rc5 Ba3 Rcc8 Nh6+
r1Q5/1R3b1q/2RQKb2/1qqQ4/q2pbpB1/1rn3N1/N2p2N1/1nRqB1k1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 Kg3 a4 Kf2 e4 h5 g4 b5 c5 f5 c6 b3 a5 h3 e5 b2 a6 h4 a7 b4 g5 b3 e6 f3 e7 d3 e8Q f4 c7 h2 g6 h3 g7 d2 Bc4 Qg5+ Qe5 Be7 Ra4 Nc6 Be2 Bf6 Qf5 Nd4 Bb5 Nc2 Qe5 Na3 Nc3 b1B Rb4 b2 Qb3 Ne7+ Kd6 Kg2 g8R f2 Qbd5+ Be4 Nge2 b1Q Rg6 f1Q Bb2 Qa1 Ng3 Nb1 Be2 Qa4 Bg4 Qfb5 Rc1 h1Q Na2 h2 Bd4 Qhd1 Bf2 h1Q Be1 Rh3 Rh6 Bb7 c8Q Kg1 Rb2 Bg6 Rb4 Bf7 Rb3 Rb8 a8N Qh5 Nb6 Ra8 Rb4 Qe4 Qee6 Qh7 Nc4 Q5f5 Ne3 Bc6 Qb3 Nd5 Ng2 Ndc3 Qbc4 Be4 Qcd5 Qba5 Rb7 Qb6+ Qdc6 Qfb5 Qd5 Q6c5+ Kc7 d6 Kd7 Bfg6+ Ke6 Be8 Qc4 d5 Qd6 d4 Qcd5 Ne2 Nf5 Rb3 Ng3 Nec3 Rb6 Qg7 Rh7 Qg6 Rhb7 Qh7 Rc6 Bf7+
RbQ1r2B/2b2r2/Nq6/B1pp4/K3NQb1/1n1R1b1Q/1n2B2p/bk1qr2R w - - 0 1 illegal: No proof kernel
b3RBb1/K2q1kqN/3Rp1nR/2Q4r/1r1N3b/2r1Npn1/1p4BB/2bbQ3 w - - 0 1 illegal: No proof kernel
3n4/1rq1qpkb/B1n2Nnb/r2RnR1K/N7/B3p3/1qQQBpQ1/5Nn1 w - - 0 1 illegal: No proof kernel
R2Bq1qN/2n2p1Q/RN2n1R1/b3p2b/b3B2b/p2rk3/q6r/bBN3KQ w - - 0 1 illegal: No proof kernel
2R5/p1R5/1Q2q3/1bn1Nnpp/3kn3/3rN1b1/nKqBBQQb/1NB1n2r w - - 0 1 illegal: No proof kernel
1b1KNk2/2Qn1q2/4bQ2/1qr1nBr1/3RQ3/Bp2pq2/1p1Nq2b/1R1B2nN w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 e5 c4 b5 g4 h3 f5 e3 Kd3 h4 a5 h2 g5 h3 g6 e4+ Ke2 d3+ Ke1 d2+ Ke2 b3 a6 b2 a7 b4 f6 b3 g7 d4 c5 Rh5 c6 Qd5 c7 Qf7 Qc2 d1N Bd2 Nh6 g8N Nd7 Ra4 Rg5 Bb4 Ng4 Ba3 Bd6 Nd2 Kf8 Qc4 Rb8 a8Q Nge5 Bg2 Rb7 Bf3 Nf2 Qc2 Rb5 Qac6 Qh5 f7 Rc5 Nf6 Qg6 Ne8 d3+ Ke1 Qh5 Bd1 e2 Rd4 Qf3 Nf1 Qf5 Kd2 e1B+ Ke3 d2 Nf3 Qe6 Kf4 e3 Rg1 h1Q Q6e4 h2 Ng3 Qc4 Qc1 Qb5 Qc3 Qg2 Nh1 Qgf1 Qcc2 Rg2 Kf5 Nh3 Ke6 Rg5 Qc3 Bg3 Qa5 Qfe2 Rf1 Ng1 Re1 Ba6 c8B Bb8 Qc7 Bb7 Rf1 Bd5+ Kd6 Nf6 Bf5 Be6 Bc2 d1Q Nd2 Qa1 Rb1 Nfd7 Bd1 Qa2 Bb4 Qaa4 Ba3 Qac4 Nf6 Kg7 Ke7 Qd5 Kd8 Kf8 Nf2 h1Q Ne8 Qhh5 Nh1 Qhf3 Qd3 Bh2 Bh3 Bf5 Qe4 Qe6 Bg4 Qg6 Bh3 Be6 Bf5 Qg8 Nd6 Kg7+ Ne8+ Kh6 f8Q+ Qg7 Qe7 Qf7 Nf6 Kg7 Ne8+ Kg8 Qf6 Kf8
2rKQ1R1/2R1nQ2/2rQbB2/B1b4n/q2pB3/3pkNpr/1nqN4/R3b2b w - - 0 1 illegal: No possible last move, all moves rejected
3q2r1/4q1N1/1k4r1/r1n2n2/pp1bBRpR/1bbrR1N1/3Q1B2/Q1NK1nQ1 w - - 0 1 illegal: No proof kernel
1qNNrN1n/1Br1b3/2bbb3/4KRp1/1nr1QR2/1R3pnB/2Q1p3/B2qk3 w - - 0 1 illegal: No proof kernel
2QB2K1/Qrrb2rB/1n3rb1/1pqn4/2Np2B1/2R4Q/1pN2kNn/1Rq1b3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 Kg3 a4 b5 e4 f5 e5 h5 c5 h3 e6 d3 e7 f3 e8N b3 c6 f2 c7 h4 a5 f4 a6 h2 a7 h3 Qc2 d2 Nd6 d1R+ Bd3 f1R Qc4 f3 Qf4+ Kf2 g4 b2 g5 Rh7 g6 Rg7 Ke5 Ne7 Na3 Nd5 Qh6 Qg5+ Bf5 Be7 Ndc4 Bb4 Ne2 Be1 Rg1 h1B Nf4 h2 Rb1 Qh5 Bd2 Rc1 Nc2 Bg2 Ba5 h1Q Kd6 Bh3 Be6 Bf5 Ng2 Qg5 Qh3 Qe7+ Ke5 Qc5 N2a3 Bd3 Bg4 Rc3 Rc1 Bb1 Nc2 d6+ Ke4 Nd7 Kf5 Rb8 a8Q Rb7 Qa7 N7b6+ Kg5 Bd7 Kh6 Nb4 c8Q d5 Bh5 d4 Bg4 Re7 g7 N4d5 g8B Rg7 N2a3 Bg6 Bh7 Re3 Nc2 Ree7 Bb4 Ref7 Bd2 Rf6 Bg5 Rc6 Bd8 Rcc7 N2a3 Qh2 Rc3 Qf4+ Bg5 Qc1 Nc2 Rf7 Rh1 Rf6 Kg7 Rg1 Kg8 Rf5 Nf4 Qb1 Na5 Bh5 Rd3 Bc3 Qh2+ Kf1 Bd8 Rf6 Qg3 Bb4 Bgf5 f2 Nc4 Bhe8 Rh2 Qa1 Rh3 Be1 Rd1 Rg2 Qg4 Kg1 Rg3 f1N Rc3 Kf2 Be6 Rg3 Ng2 Nh2 Rc1 Bg6 Qh3 Bh5+ Kh8 Rg7 Bg4 Bg6 Rd1 Re7 Kg8 Qb1 Nb4 Qc2 Rb1 Qc1 Nc2 Rg7+
Q1N1BkN1/4nb1B/5R1p/B1rnprbp/q1br4/7Q/rqRKn3/5N1R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 d4 fxe4 d5 g6 h5 gxh5 d6 cxd6 Bf4 d5 Bc1 d4 f4 b5 c4 e5 g4 d5 a4 h6 f5 b3 g5 d3 f6 d4 a5 e3 c5 b4 c6 d2+ Ke2 d3+ Kf3 e2 Ke3 e1R+ Qe2 d1Q g6 d2 g7 b2 a6 b3 c7 Qd4+ Kf3 Nd7 a7 Be7 Rh2 Nb6 Nc3 b1B Ne4 Be6 c8N Qb2 Ke3 Ba2 Nf3 Bf7 Rg2 Rh7 Nh2 Nd5+ Kd3 Bd8 Qe3 Nge7 g8B Kf8 Qh3 Rg7 Rf2 Rg5 Bh7 Rf5 Be2 Rg1 Nf1 Rg4 Rg2 Rgf4 Rf2 Rb8 a8Q Rb5 Bg4 Rc5 Rh2 Rg5 Bd7 Rgf5 Be8 Qdc2+ Ke2 d1N+ Bd2 N1c3+ Ke1 Ne2 Ba5 Qc4 Rc1 Qa4 Rc2 Qbd4 Rh1 b2 Nfd2 Bc4 Nf1 Qf2+ Kd1 b1R+ Kd2 Bg8 f7 Rb2 Nf6 Ra2 Kd1 Qd4+ Ke1 Qb2 Kd2 Kg7 f8R Bf7 Qg2+ Ng6 Ng8 Bg5 Qh3 Nge7 Na7 Be6 Rf6 Bf7 Nc8 Kf8 Qg3 Ra3 Qh2 Ra2 Qh3 Rd4+
1Q1q1Nk1/2Q1nbb1/R4p1r/q3b1Q1/4pq1n/2BN2p1/2R1Kn2/R1Br1Bb1 w - - 0 1 illegal: No proof kernel
1qQ4R/1N1rnrb1/Q1R2p1B/1b3Qq1/n2p1pN1/Bqq3br/K2k3N/7B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Kd6 e4 Kc5 c4 g5 Kc2 b5 Kb2 d5 h4 d3 e5 Kd4 h5 f6 h6 b3 c5 b4 c6 d2 a5 Ke3 h7 g3 a6 g4 e6 g2 c7 g3 a7 Nd7 e7 Nc5 e8N Bd7 c8Q Ne7 Bd3 Qa5 Ra4 Bb5 Nh3 g1B Ka1 g2 Nd6 b2+ Ka2 Bh2 Qh5 g1Q Nf2 Bg3 Be4 Bg7 Nb7 d4 Qhf5 b3+ Ka3 Rb8 a8Q Qc3 Ra6 Na4 Rc6 Rd8 h8B Rd7 Rh2 Ke2 Bd5 d1Q Nd2 b1R Nf3 b2+ Ka2 Qdc2 Qa6 Ra8 Rc4 Ra7 Rc6 Q2d3 Ng4+ Qg2 Bd2 Rh1 Bc1 Qd1 Rh7 Rh3 Nfh2 Qgg1 Bh1 Qdb3+ Kb1 Bf8 Bg7 Kd1 Bh6 Bg7 Qc5 Qg2 Rh8 Qgd5 Be3 Qg5 Qf5 Ke1 Bg1 Kd2 Bf2 Qbb4 Ka2 Qd6 Bg1 Qb8 Be3+ Kd1 Re6 Nc6 Qe4 Re7 Nd8 Rf7 Qf5 Ne7 Rc6 Rd7 Bd2 Qf3 Ba5 Qc3 Nb7 Kd2 Bb6 Qc2 Bc5 b1Q+ Ka3 Qbd1 Bd6 Qd3+ Ka2 Qc3 Ba3 Qdb3#
4n3/2n1R2Q/qB1bpKb1/2R2Rp1/3B2NQ/r1nBrr2/2nq1p1Q/b3kN2 w - - 0 1 illegal: No proof kernel
4n2q/1BqRr1N1/1p1r2rQ/ppNnr3/5n2/1QbQ2b1/3Nb1kB/R1KR4 w - - 0 1 illegal: No proof kernel
k1q3r1/1N4Rp/3b2NQ/p1pr2Qq/2B3B1/1RK1Bb1b/R7/n1rQqbn1 w - - 0 1 illegal: No possible last move, all moves rejected
1n2Kq2/N1R1Np1n/k1n1B1R1/qbQ2nB1/1r1p3p/8/R5QQ/2bqb1rB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 h5 Kf3 a5 Ke4 d5+ Ke5 Kd7 e4 Kc7 c4 Kb7 g4 d3 b4 f3 c5 f2 c6+ Ka7 g5 h3 g6 h2 b5 d4 g7 a3 b6+ Ka6 c7 a4 b7 a2 Qc2 h4 Nh3 a3 Qc5 Rh5+ Bg5 Bd7 c8B Bb5 Rg1 h1N Be6 d2 Nf4 d1Q Ng6 Nf6 g8Q Bh6 Ne7 Ng3 Bg2 f1Q Bh1 Nh7 Nc3 Qf8 Kd6 Qfe1 e5 Nf5+ Kc7 Qed2 Rc1 a1N Rg2 Bd7 Nb5 a2 Na7 Nb3 Re2 Be8 Kd8 a1B Qg6 Qb4 Ra2+ Na5 Rcc2 Bc3 Rg2 Nd7+ b8Q Be1 Rg3 Ne3 Qgc2 Nf5 Qg2 Qa3 Be3 Qc3 Rg6 Rg5 Bc1 Rg3 Bg5 Qca1 Nb5 Ra7 Qbc7 Rb7 Na7 Qc3 Qb8 Rb1 Qbb2 Nb8 Qh2 Qg7 Qbd2 Ba4 Qdg2 Nac6+ Ke8 Rb4 Qe4 Qdb3 Bf6 Qbc2 Bc8+ Rb7 e6 Q2d3 Ng8 Qb5 e7 Qbd3 Be6 Bf4 Bg5 Rg1 Qeg2 Nb4+ Kd8 Qd1 e8R Bc1 Re7 N4c6+ Ke8 Qa5 Rc7 Rb4 Ne7 Bb5 Bd7 Qh6 Be6 Qf8#
n4nkq/n1NBp1b1/1N2pBb1/2K3p1/Q2R1q2/Rn1q2r1/Qr5R/1r1BQ3 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g4 hxg4 e5 a5 e6 axb4 Bd2 fxe6 Be3 Rh7 Bc1 Rh8 Ke2 Kf7 Kd3 g5 Kc4 b5+ Kc5 d5 f4 d3 h4 g3 a4 b3 c4 d4 f5 d2 h5 b4 h6 d3 a5 g2 f6 b2 h7 b3 a6 Bg7 a7 Nc6 Qe2 d1N Qe1 d2 Be2 Ne3 Bd1 Nd5 Nf3 g1Q+ Nd4 Nc7 Rh4 Rb8 a8Q Na7 Nc3 b1N Na4 b2 Nb6 Qh2 Nb5 Bb7 Rd4 Qf4 Ra3 Be4 Qd5 Na8 Nc7 Kf8 f7 Nf6 Qc6 Bg6 Qa4 Rg8 h8R Nh7 Nbd5 Rb3 Nb6 Nf6 Rh2 Rg3 Kb4 Rh8 c5 Nh7 c6 Qb8 Kc5 Rg8 Bh5 d1Q Be3 Qd3 Bd1 Nd2 Bf2 Bf6 Bg1 Kg7 f8Q+ Kh8 Qd8 b1R Qd5 Bg7 Qa2 Rd8 Be3 Kg8 Bg1 Nf8 Be3 Qh4 Bf4 Qh7 Be5 Qh8 Bf6 Rc8 Na6 Qf4 c7 Rb8 c8B Rb2 Nc7 Rb7 Bd7 Rb1 Nbd5 R7b2 Nb6 Nb3+
R6N/RqNpBB1Q/3N1b1r/3qn1q1/8/K5rn/Qpn1p3/Rbr1Qn1k w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 a4 Kf5 c4 e5 Kc2 h5 Kb3 b5 c5 d3 g3 d2 a5 e3 a6 Ke4 a7 e2 f5 e1R f6 h3 c6 h4 f7 h2 c7 h3 g4 Ne7 g5 Ng6 Ra2 Rh6 Qh5 d1N Bf4 Nc6 Bc4 Be7 f8R Ne3 Ra5 Rc1 Rf7 Bf6 Be2 Ba6 Bg3 Nf4 Ka2 b3+ Ka3 b2 c8N Qg8 g6 b4+ Kb3 Qd8 g7 Bd3 Na3 b1N g8Q Nd2+ Ka4 b3 Rf8 b2 Qh4 Ndf1 Nf3 Rb8 a8Q Bb1 Bc4 Rb3 Ra7 Qe7 Rg1 h1Q Bf7 h2 Nb5 Qg2 Bf2 h1Q Nc7 Qg5 Qh8 Qe6 Qh7+ Qef5 Qg3 Nh3 Nh4 Qf3 Ng6 Qe6 Rg8 Qd5 Be1 Qh1 Qh4+ Kf3 Nh8 e4 Bb4 Ne5 Be7 Rd3 Nd6 Rdc3 Rg4 Rb3 Rf4+ Kg2 Qe1 Kg1 Rd8 Qhg2 Rf2 Kh1 Rd2 Qb7 Rd1 Qd2 Rb8 Qdd5 Rf8 N3g4 Rd8 Rg3 Rg8 e3 Ka3 Bd3 Rf8 e2 Rd8 Ne3 Rb8 Rc5 Ra1 Rc1 Rd8 Bb1 Re8 Qf3 Rg8 Qc8 Qd5 Qb7 Qa2 Qfd5 Rga8 Nc2+
1r1k1q2/Q2p2B1/QN3q2/1q3r1q/1bBnpb2/1RN5/bn1Kp1n1/N3BR1R w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 e5 h4 b5 f4 g5 c4 b3 h5 e3 a5 b2 c5 b4 c6 b3 h6 d3 f5 e2 a6 g3 a7 g2 f6 d2+ Kf2 g4 Ke3 e4 c7 g3 h7 Nh6 Rh2 Bb7 c8N Nc6 Nb6 Nd4 Ra2 Nhf5+ Kf4 Nh4 Ke3 Rb8 a8Q Bb4 Qa6 Bd5 Nf3 Rf8 Nc3 b1Q h8B b2 Bg7 Qa1 Ra3 b1Q Qda4 d1N+ Kd2 g1Q Rb3 g2 Rh1 Qh2 Ne1 g1B Nc2 Nb2 Bh3 Ng2 Be6 Qh5 f7+ Ke7 Qa7 Bh2 Q4a6 Bc4 Bd5 Qe8 Be6 Kd8 Bd5 Qe7 Be6 Qa3 Na1 Qf6 Bd5 Re8 f8R Bc7 Rf7 Re5 Bc6 Be6 Bd5 Rf5 Bc4 Qa5 Re1 Qc5 Rf1 Qce7 Rf8+ Qee8 Rh8 Qef8 Rh6 Qa2 Rh7 Qa5 Rh8 Qb5 Rh7 Qhg6 Rhh1 Qh5 Bd5 Nc6 Kc2 Q6f7 Ra3 Ra8 Bd2 Qf6 Be1 Nd4+ Kd2 Rb8 Ba2 Bd5 Bb3 Bc6 Bg8 Bd5 Bf7 Ba2 Bc4 Be5 Rb3 Bf4+
3bN3/2pQ1B2/2bp4/R1rqknpN/5q1Q/b1K1BRr1/r1n2n2/RN1r3B w - - 0 1 illegal: No proof kernel
B2Q1nNq/2p4Q/1p1R1B1r/rRKnn1pb/6qk/3Qr1R1/1b2B3/bNn5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 h4 b3 e4 b2 d4 g3+ Kf3 c3 d5 g2 a5 c2 h5 Kg5 a6 f5 h6 Ba3 h7 Nf6 d6 Nfd7 e5 Nf8 e6 Nc6 a7 Ne5+ Ke2 g6 Bd2 c1N+ Kf2 Qd7 Nh3+ Kh4 e7 g5 e8Q f3 Ke3 f4+ Kd4 g1B+ Be3 f2 Be2 f1Q Qd8 f3 Nf2+ Qfh3 Ng4 f2 Qd3 f1R Nf6 Re1 Ng8 Qg4+ Kd5 Bd7 Bd4 Be8 d7 Bh5 Rh2 Be3 Rg2 Qh2 Bc3 Bd4 Rg3 Qhh3 Bd1 Re3 Be2 Be7 Ra5 Bf6 Rb5 Qh2 Nd2 b1N Ba1 Bb2 Kc5 Nc3 Nb1 Rc8 a8B Nd5 Qe7 Re8 d8R Qh1 Qd6 Re6 Qe7 Ra6 Rd6 Ra4 Qd8 Ra5 Ne7 Rg8 h8Q Rg6 Ng8 Rh6 Nc3 Qhe4 Qg7 Qh7 Nb1 Qh8 Qgh7 Nc6 Qb3 Bbe5 Bb2 Bg7 Ba3 Ba1 Qbd3 Bgf6 Bb4 Bfb2 Bd2 Re8 Bc3 Re3 Bg7 Ne5 Bf6 b6+
r1Br1k2/p2RrBRK/1Qq2B2/1bQ1pNbp/3R1q1n/1N6/3b2r1/n1q2N2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 e5 b4 h5 g4 d5 c4 e3+ Kd3 e2 f4 e1B b5 h3 f5 a3 f6 h2 g5 a2 b6 Bf2 f7+ Ke7 g6 Nh6 b7 Be1 c5 Be6 g7 Bg4 g8R Nf5 c6 Nd7 b8Q Rh7 c7 Bh6 f8N Bed2 c8B Nh4 Nf3 Bhg5 Ne6 Qf8 Nc5 Qf4 Rg7+ Kf8 Nb3 Be6 Rg1 h1Q Qc2 Bh3 Be2 Bf1 Qb6 Qg2 Qc4 Qh1 Rg4 Nc5+ Kc2 Qg2 Bd3 Qh1 Bg6 Qg2 Rd7 Re7 Bf7 Qh1 Qc3 Bb5 Rg1 Ne4 Qcc5 d3+ Kd1 Qg2 Nfd4 Qh1 Nf5 d4 Nc3 Qg2 Nd5 Qh1 Rb1 a1R Nde3 Ra2 Nf1 Rc2 Ra1 Qg2 Ra4 Qh1 Qc4 Nc5 Qc3 Qc6 Ba3 Na6 Qcc5 Nb4 Bc1 Rb2 Rg4 Nc2 Rb4 Bh6 Rg7 Bg5 Ra4 Na1 Rc4 Bb4 Be3 d2 Ke2 Ba5 Kd3 d1Q+ Bd2 Qc1 Be1 Ng6 Bg3 Bd2 Bh4 Bh6 Bg5 Nh4 Bf6 Bg5 Qd5 Qh2 Ke4 d3 Rd4 Bb4 Qb7 d2 Qa6 d1R Qb6 Q6c4 Qdd6 Rg2 Qdc5 Bbd2 Nh6 Nf3 Kf5 Qf4+ Kg6 Nh4+ Kh7 Qe6 Nf5 Qc6 Ra4 Ba5 Rb4 Rd6 Rd4 Bd2 Rb7 Rd8 Rc7 Be3 Rcd7 Bd2
2b4b/2nbBQ2/1B1pR3/1QR1b2N/q3b2r/rp1nk2N/p3BrR1/1Q2K2b w - - 0 1 illegal: No proof kernel
2kr3b/BbnrQ2B/1p2K3/1pQ2RN1/2n1RQ2/2bp3b/3BNbb1/2nR3q w - - 0 1 legal: proof: f4 c5 g4 h5 b4 hxg4 d4 cxd4 b5 e5 b6 exf4 Kf2 axb6 Ke1 b5 Kd2 g5 Kd3 d5 h4 Kd7 a4 f5 c4 g3 e4 f3 a5 f4 e5 g4 a6 g2 h5 g3 h6 b6 h7 f2 c5 f3 a7 Nf6 Ra5 Nc6 Qc2 Bb7 e6+ Kc8 e7 Ne8 Be2 f1B Qc4 f2 Nd2 Bg7 Ne4 Nc7 Ra4 Na5 e8Q Nb3 c6 Rf8 h8B Rf7 Bd2 Rd7 Qe6 Qh4 Ng5 Qh3 Qe7 Nc1+ Kc2 Rb8 a8R Bf6 Kb2 d3+ Qd4 Be5 Kc3 Qh7 Bf3 Qh5 Ne2 g1B Bg7 Bg2 Be4 f1B Bh7 Bf2 Bf8 Bh8 Rb4 Na6 c7 Qh2 Rg1 Qh1 Bg7 Bh3 Qf4 g2 Re4 Be1 Kd4 Bf2+ Ke5 d4 Bc3 d2 Bf6 d1N Bd2 Ne3 Ra7 Nf5 Ke6 d3 Be5 Bd4 Ra8 Bc3 Bd6 Qh2 Rh1 g1B Be5 Bc5 Bd6 Bfg2 Rd1 Bf2 Ra7 Nb4 Ra4 Na6 Rad4 Bg1 Rd5 Ne3+ Rf5 Qh1 Be5 Bf2 Bd6 Bc6 Be5 Nc4 Bd6 Kb7 Be5 Rbd8 c8Q+ Ka7 Bc7 Bb7 Bb8+ Ka8 Qcc5 Nc7+ Kf7 Ba6 Ba7 Kb7 Qb4 Kc8 Qa3 Ne8 Ke6 Bb7 Qac5+ Nc7+
Br1b3B/2n3R1/KnnNQ3/Np4p1/rQRq4/1b2p1N1/6R1/1nnkrB1r w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 b3 f6 b2 f7 e4+ Ke2 Kc4 c3 d5 a7 g2 h6 Na6 h7 Ne7 Rh4 Nc7 Qe1 Kb3 c4 Kc2 c5 Nc6 Nd2 b1N Bb2 Be7 f8Q Be6 Nc4 Qd7 Bc3 Bd8 Na5 Rb8 a8B Bg8 Qg3 d3+ Ke1 e2 Ra2+ Kc1 Qg4 d4 Qe6 d2+ Kf2 e1R Ne2+ Kd1 Ng3 g1N Qfe7 Na7 c6 d3 Qb4 Ne2 Ke3 Qg7 Bf6 Nc1+ Kd4 e3 Kc5 Bf7 Rc4 Re8 Qh3 Re4 h8R Rf4 Rg8 Qh8 Rc3 Bb3 Rg7 Re4 Qe6 Rg4 Qa3 Ra4 Rc4 Qh4 Bb7 Qe4 Kb6 Qd4+ Qc5 Na8+ Ka6 Nb6 c7 Nc6 c8N Qg4 Be7 Re2 Qf7 Ke1 Nd6 d1N Rg8 d2 Bf6 Qe4 Bh8 Qd4 Bg2 Ndc3 Rg7 d1R Qe6 Ncd5 Bh3 Rh2 Bf1 Rh7 Rg2 Rh1 Rg1 Kd2 Ba8 Re1 Qb4+ Kd1 Rg2 Nc7+
K2BQ3/R2Qq3/4p1Nn/R5r1/r2bpNRp/4b3/Bk1Bq3/bnb2bNb w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc6 g4 Kc5 d4+ Kb4 f4 c5 b3 a5 f5 h5 g5 h3 d5 e6 f6 a3 f7 a4 d6 a2 d7 a3 g6 h2 g7 c3 Bb2 h4 Bh3 c4 Kd4 c2 Bf1 c1B Nc3 Ra4 Nce2 c3 Nf4 c2 Bc4 Qe7 d8B Nh6 g8R Na6 Rg4 Nc7 Ke5 Rh7 Qd7 Be3 Bc1 Kc3 b4 Nb5 Bd2+ Kb2 Bd5 Nc3 b5 c1Q b6 Qc2 b7 Rg7 b8Q+ Bb7 Qbc8 Ba6 Qe8 Bf1 Qcd7 Nb1 Bc4 Qb4 Bd5 Be7 f8N Bg5 N8g6 Qe7 Bb3 Qd1 Bc4 Qe2 Bd5 Qf7 Kd6 Qe7+ Kc7 Rg8 Kb7 Rg7 Nf3 Rg8 Rhg1 h1B Bc4 Bf6 Rg5 Bfd4 Ra5 Rg7 Rg4 Rg8 Nh8 Rg5 Ng1 Nc3 Re1 a1B Nhg6 a2 Ka8 Nb1 Rd1 Ka3 Rc1 Bab2 Rc2 a1B Ba2 Bc1 Rc7 Kb2 Rb7+ Kc2 Rba7 Kb2
N1r2bQ1/2rqn3/KrR1p1Qp/NBbn4/1b2p3/3rRb1B/k2N3B/r5R1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 a4 Ke6 g4 Kd5 f4 c5 d4 b5 f5 h3 g5 b3 f6 c3 f7 Kc4 d5 c2 d6 h6 g6 b2 g7 Kb3 d7 h2 a5 c4 a6 b4 a7 c3 Be3 Na6 Bf4 Rh7 Bh3 Nc7 Nf3 Nd5 Rg1 h1R Na3 b1R Bh2 e6 Nc4 Nge7 Ra6 Ra1 Na5+ Ka2 g8B c1B Rc6 c2 Nd2 b3 Qf1 b2 Qf5 b1R Qg6 Rab8 a8N R1b6 Kf2 Qc7 d8Q Ba3 Ke2 c1B Qe8 Nf4+ Ke3 Nfd5+ Kd4 Bb4 Kc4 Bca3 Qd8 Qd7 Qe8 Bg7 f8R Bd4 Rf3 Bdc5 Qef7 Bb7 Qfg7 Rc8 Bf7 Rd1 Re3 Ra1 Rg2 Rhd1 Qg8 Rg7 Rg1 Rh7 Nf3 Rd3 Nd2 Rg7 Rd6 Bc6 Be8 Ba4 Rc6 Bd1 Rd6 Rbc6 Kb5 R6c7+ Rc6 Bf3 Ka6 Rf7 Rd6 Rf8 Rc6 Rb8 Bf7 Rfc8 Be8 Bb2 Rd6 Bg7 Rc6 Bf8 Rd6 Qd8 Bb5 Qd7 Rc6 Rb6+
1nr1R3/Rb1n1Bp1/3pp3/1b1k3b/q2nN2r/4b3/nQ1QQr1B/R1K1B2N w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 c4 b5 a4 d3 f4 b3 f5+ Ke5 c5 g3 f6 b4 c6 b2 c7 g2 f7 b3 h5 Nf6 a5 Kd5 a6 Bb7 c8Q Qa5+ Qc3 Qa4 Ne2 g1N Ng3 Ne2 a7 Nd4 Qe2 e3+ Kd1 d2 h6 Rh7 Rh4 Rh8 h7 e6 Nh1 Bc5 f8B Bb6 Bb4 d6 Qcd3 Rf8 h8Q Nfd7 Qc3 Rf5 Qh6 Rf2 Qf4 Bc5 Rh8 Bb6 Re8 Bc5 Na3 b1B Qb2 Bd3 Nb1 Bb5 Bh3 Bb6 Bg4 Bc5 Bh5 Bb6 Qc2 b2 Bf7 Bc5 Na3 b1B Nc4 Bb6 Qb3 Bg6 Ba5 Bh5 Qc2 Nb3 Qb2 Bd4 Kc2 d1N Nd2 Nc3 Ne4 Bc5 Bd2 Nd4+ Kc1 Bb6 Be1 Bc5 Bd8 Bb6 Bh4 Bc5 Qd1 e2 Bg3 Bb6 Bh2 Bc5 Bd2 e1R Qg4 Rg1 Qe2 Rg4 Be1 Rh4 Qdc2 Na6 Qcd3 Rc8 a8R Nab8 Qdc2 Nf3 Ra6 Be3+ Qcd2+ Nd4 Ra7 Na2+
5rnk/4Qp2/1RbBBR1b/2Kn4/1B1Rr1r1/2N1Nnp1/1Qqb2p1/3Qbn2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 d4 g5 h4 b5 Qb3 c5 Kd2 c3+ Kd3 c2 e4 f3 a4 f2 a5 Nd7 d5 c4+ Kd4 c3 d6 Bb7 h5 Rh6 a6 Re6 h6 Ndf6 h7 Qc8 h8Q Nd5 a7 Bh6 d7+ Kf8 Bb2 c1B d8B c2 Ba5 Bd2 Rh4 Be1 e5 c1B Na3 Bcd2 Bh3 f1N Qd1 b3 Nc2 b4 Ba3 Rg6 Ne3 Qc2 e6 Rd8 a8Q Bc6 Bc7 Re8 Bh2 b2 Qb7 b1R Bd6+ Re7 Qc7 b3 Ne2 b2 Qb7 g3 Qf6 g2 Nc3 g4 Kc5 g3 Rd4 Qa4 Ra2 Bd7 Qg5 Kg7 Bc7 Bc1 Qbb3 Ra1 Bb4 b1N Rf2 Kh8 Qb2 Qc2 Qh4 Re8 e7 Raa8 Qe4 Rad8 Rf6 Nbd2 Be5 Rf8 e8R Nf3 Ree6 Bcd2 Rb6 Bc6 Bd6 Rde8 Qe6 Re7 Qd7 Re4 Qe7 Rg5 Be6 Rgg4
BNQ1QrrN/5n2/K2b1q2/1r4b1/B1Rbpqr1/1b1k3p/2pB1nQ1/1N1R4 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 f4 Kd5 d4 h5 g4 b5 g5 e5 a5 c5 g6 c3 a6 Kc4 a7 b3 g7 b4 d5 e3 f5 c2 d6 b2 d7 e4 f6 b3 f7 h3 Ra6 h4 Rh2 Nh6 g8B Ng4 Ra5 Qf6 d8Q Nc6 Q1d7 Nce5 Qf5 Bd6 f8Q+ Nf7 Nf3 Be6 Ng5 Nf2 Bd2 c1B Rh1 h2 Qc8 h3 Qg4 Rh4 Qf3 Rg4 Qfe8 Rb8 Rg1 h1Q a8N Qh2 Qg2 Qhf4 Nc7 Kd4 Rb5 c4 Na6 c3 Rc5 c2 Rc3 Ra8 Nb8 Bc4+ Ke1 e2 Rh1 Bd5 Rc4+ Kd3 Rg1 Ne5 Be6 Nf7 Bd7 Be6 Bc6 Bd5 Na6 Rb8 Ba8 Rb5 Nb8 Be6 Nc3 b1R Rh1 Ra1 Nb1 Bb2 Rg1 Bd4 Rh1 b2 Rg1 Nd8 Nf7 Raa5 Nh8 Nf7 Rh1 Rf5 Rg1 Rab5 Rc5 Rg8 Nc3 b1R+ Bc1 Qd8 Rc7 R5b4 Qg4 Bb3 Rc6 Ra1 Qg5 Raa5 Nb1 Nh6 Qg2 Rff8 Be3 Rc5 Rh1 Kc4 Kd2 Nf7 Rg1 Kb5 Rh1 Rcg5 Rg1 Ba7 Kc3 Rg4 Bd2 Qh4 Kb2 Bac5 Ka3 Kc4 Rc7 Qhf6 Rc6 Ba2 Rh1 Rb7+ Ka4 Bb3+ Ka5 Kd4 Bc3+ Ke3 Ka6 Bd4 Ba5 e1B Bc3 Q4h6 Bb5 Bd2 Ba4 Rb5 Rc4 Kd3 Bb4 B2f4 Bd2 Qhg5 Rg1 Qge5 Re1 Bg5 Rd1 Qef4
2Kq2k1/2nr3R/B1n5/4QrpN/1n1bR1R1/ppnq2Q1/2r1N3/QbN2rB1 w - - 0 1 illegal: No proof kernel
b3n3/1R3n1n/r1NqB1N1/4rpk1/1b2Q1pR/K2B1pb1/2qN1Q1B/2R2nb1 w - - 0 1 illegal: No possible last move, all moves rejected
1r6/2NN1Q1q/n1Qq3n/1bpRBpr1/B2bp3/q2RN2b/1kq3Rb/3B3K w - - 0 1 illegal: No proof kernel
4Rq2/1k1bNQrn/np3RB1/B4N2/pQ1BKbr1/1Q2r2b/1p1qR1b1/2r5 w - - 0 1 illegal: No proof kernel
2b1kqR1/8/pb3Q1N/2r1nR2/rnN4p/2nQKqBB/Bp1r3Q/2n2r1R w - - 0 1 illegal: No proof kernel
R1N2N2/pBbK4/B5b1/q1bp1nQ1/r6p/Q2r2R1/Nrnqkb2/1RB1r3 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 h3 c4 Kf7 g4 Kf6 f4 h5 b4 d5 f5 Kg5 f6 Kf4 g5 e5 g6 h2 Bb2 d3 Kc3 Ke3 g7 d2 c5 a3 f7 a2 b5 Qa5+ Kb3 Bf5 c6 Na6 b6 Ne7 g8Q Nb4 c7 Rb8 c8B Nc2 Nc3 Rh6 Qdg4 d1R Rb1 a1B b7 Rd2 Qh8 Bg6 Nh3 Nf5 Ng5 Bc5 Ba6 Rd3 Rhg1 h1Q f8N Qg2 Nf7 Qd2 Bc1 Kf2 Nd6 e3 Qb4 e2 Rg3 e1B Qf6 e4 Qa3 e3 Qd8 e2 Qg5 Qd8 Ka4 Kf1 Kb5 Qa5+ Kc6 Bef2 Qa2 e1R Qa3 Rh8 Na2 Ke2 Kd7 Be5 Ne8 Bc7 Nd6 Ra8 b8R h4 Ne6 Re8 Nf8 Re4 Bcb7 Nb4 Bc6 Nc2 Rc8 Rb8 Rd8 Rb2 Bcb7 Rb3 Ra8 Ra4 Nc8 Rb2
2qN4/pn1r2r1/1bQ2p1k/2BRR3/2nRp3/2Q2q1B/N2q2b1/b1bQq1BK w - - 0 1 illegal: No possible last move, all moves rejected
8/n1r2N1b/RQ2qB1r/b1N1RpQ1/pQB1qpR1/5p2/KBq5/nb1k1r2 w - - 0 1 illegal: No possible last move
2Q2rn1/5Nk1/1qQB1p1N/1rnp3R/1p4b1/q1n2Q2/1bKp1q2/N1rR1BR1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 e4 d5 g4 h5 a4 h3 c4 h4 a5 h2 a6 f6 a7 Kf7 e5 f3 c5 d3 g5 h3 g6+ Kg7 c6 b3 e6 f2 e7 b2 e8R Qb6 c7 Ba3 Re5 b4 Qf3 Bg4 c8Q Na6 Rh5 Rb8 a8Q Nc5 Qac6 Rb7 Kd1 Rb8 Nd2 b1N Nb3 d2 Kc2 Nc3 Bb2 Rb7 Re1 Rb8 Ba1 Bb2 Rd1 Rb7 Qe2 Rb8 Nf3 Rb7 Rg1 h1Q Ne5 h2 Qe3 Qf3 Nf7 Qh3 Qf3 h1R Be2 f1Q Bc4 Qf2 Bf1 Bc1 Bb2 Qa6 Na1 Rb5 Qe4 Qb6 Qf3 N3e4 Be5 Bb2 Bd6 Qhg3 Qg2 Qa3 Qh3 Nc3 Qf3 Nh6 Rg2 Rf8 Rg1 Kg8 g7 Kh7 g8N Kg7 Ne7 Ng8 Nf5+ Kg6 Bh3 N5a4 N5h6 Kg7 Rge1 Rf1 Rb1 Nc5 Rec1 Re1 Bg2 Re5 Rg1 Re6 Rbf1 Re1 Bh3 Rb1 Rd1 Rd8 Bg2 Rf8 Bf1 Rc1+
B1r1B1k1/K2Q4/bpp3N1/2QR2b1/qr1nb3/r1B1nQ2/1p1R2pN/n1n1N3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 e4 f5 a4 Kf7 d4 b3 h4 f3 Ke3 f2 a5 c3 h5 c2 h6 b2 d5 g3 Kd4 g4 e5 g2 h7 g3 a6 f4 a7 f3 d6 Ne7 Kc5 Nbc6 e6+ Kg7 d7 Nd4 Bd2 c1N Bc3 Nd5+ e7 Ne3 Na3 Nc2 Rh2 Qe8 d8Q Bf5 Qc8 Be4 Bb5 f1N Rb1 f2 Nf3 Rb8 a8B Na1 Nc2 g1R Nce1 Ne3 Qd7 f1B Rd2 g2 Nh2 Rg8 h8N Kh7 Qh5+ Bh6 Qf3 Bg5 Ng6 Rc8 Ba4 Ba6 Qd5 Qd7 e8Q Qg4 Bd7 c6 Kb6 Rh8 Ka7 b6 Qb5 Rh1 Qe7+ Kg8 Qbc5 Rh4 Be8 Rf1 Qd7 Rh3 Qf6 Rf4 Qff5 Qd1 Qg4 Qa4 Qf3 Nce2 Rbd1 Nc1 Qce7 Rf5 Qed6 Rb5 Qe5 Rb4 Qc5 Ne6 Rd5 Nd4 Rd2 Bd8 Qg3 Nf1 Qf2 Re3 Qg3 Bg5 Qf3 Ne6 Bh8 Ra3 Bg7 Ne3 Bc3 Nd4
n3r3/K1N3n1/3n1qR1/Q2p1NNB/bnQ1rq1n/2ppB2p/2R4B/1R2b2k w - - 0 1 illegal: No proof kernel
1K1b1b2/RpbQnBp1/3n4/3bQ3/rN3r1k/N3RqRp/1pb1Q3/B1N3q1 w - - 0 1 illegal: No proof kernel
3qR1N1/Q2BQR1q/2Q1K1b1/rN1bB2p/5r2/npnpn3/1p2n2R/N1b1k3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 Kg3 a4 Kf2 e4 h5 g4 b5 c5 f5 c6 b3 a5 h3 e5 b2 g5 f3 c7 f4 g6 b4 a6 d3 a7 d2 g7 b3 e6 h2 e7 Nh6 g8Q Na6 e8R Nf5 Qc2 Nd4 Qf7 Bh6 Qd1 Ne2 Bg2 Rf8 Qe7 Nb4+ Ke5 d5 Ra5 d4 Bh3 d3 Qc2 d1N Qc6 Nc2 Bd7 Ndc3 Na3 Ke1 Nb5 f2 Ke6 f3 Bf4 f1N Be5 f2 Ra1+ Bc1 Nf3+ Kd1 Nfd4 Ke1 Ra2 Na3 Ra1 Rf4 Nc2+ Kd2 Rb1 Ne3 Na1 Bb7 Rf1 h1B c8N Be4 Rh1 f1Q Rh2 Rb8 a8Q Bg6 Qa7 Ke1 Qec5 Qg2 Ne7 Ra8 Ng8 Qgg5 Qe7 Qh6 Qac5 Ra5 Qa7 Ned1 Nd4 Qh7 Nb5 Be3 Rc1 Bd2 Rc2 Ne3 Rf2 Bc1 Rd2 Rh4 Rf7 Rf4 Rc2 Ng1 Rh2 Nge2 Qca6 Bh1 Qc6 Bd5+
Rqb1Kn1k/7N/2pp4/BQqq1QnQ/1b3N2/qpR4r/1B5p/bB1rN3 w - - 0 1 illegal: No proof kernel
Bq6/2r1Bkp1/q1n1qq2/2b5/rn2K1QQ/1b1pRB1p/1bR1pN2/1RN4Q w - - 0 1 illegal: No proof kernel
1N1qBqQ1/2Kpkb1p/1N5B/1N1p2n1/nr3Qp1/r4r2/q2Q3b/Rq1R2B1 w - - 0 1 illegal: No possible last move
k2q1QB1/1RR2bb1/N2p4/2Q1r1n1/R3r3/B3Kp2/pNpnpBbQ/5r1n w - - 0 1 illegal: No possible last move, all moves rejected
1nN1B2k/4qB1q/1QR2RQ1/p1R2p2/1brB2q1/N1pb1prn/4pQr1/1K6 w - - 0 1 illegal: No possible last move, all moves rejected
1B3N1n/1p2R2q/1BR5/1pb3qN/p2pK1b1/1p2bN2/2QQr1rn/k2B2nQ w - - 0 1 illegal: No proof kernel
Q1nK2r1/npRQ2B1/2r2q2/n2pN1kB/2b3p1/b1Rp3p/1N2N2n/3b2QB w - - 0 1 illegal: No possible last move
2Q2N1r/3r2K1/NB3nNp/1n2pR2/B1pp4/b1kp3p/2B1QRbR/2b1q1r1 w - - 0 1 illegal: No proof kernel
2NB4/q1pB1R2/QBqrn3/8/q1nb2rR/kq1Rn1nR/r7/N1R1K3 w - - 0 1 legal: proof: b4 a5 h4 axb4 a4 d5 f4 e5 c4 dxc4 a5 exf4 a6 Bh3 Rxh3 g5 Rh1 gxh4 Qb3 b5 Qc2 b3 Qxb3 b4 Qc2 Be7 Qd1 Bf8 e4 Kd7 d4 Kd6 g4 h5 g5 f5 d5 Kc5 e5 c3 d6 h3 d7 c2 e6 h2 e7 h4 e8R h3 g6 b3 g7 Kb4 a7 f3 Re2 f2+ Kd2 f4 Ra2 f3 Bb2 c1Q+ Kd3 Qc2+ Ke3 Nh6 g8R Nf7 Bf6 b2 Nd2 b1Q Re1 Ng5 Nc4 Bg7 Bd4 Qa4 Kd2 Ne6 Nd6 Rh6 Qe2 Nc6 Ra3 Ne5 Bb6 Qbb3 Rc1 Qb8 d8B Rf6 Bg2 f1R Qa6 f2 Nf3 Rg1 Nc8 f1N+ Ke1 Nc4 Rf8 Nfe3+ Bf1 Rfg6 Rf7 R1g4 Nd2 Bd4 Bg2 Rh6 Bc6 Qb7 Bd7 Rf6 Rg1 h1N Rg3 h2 Rh3 Ng3 Rh4 Nc5 Rh3 Rd6 Rh4 Ne6 Rh3 Qa2 Rd3 Qb8 Nb3 Ka3 Na1+ Qb3 Rh4 h1Q+ Rf1 Qc6 Rf7 Qbb7 Rh3 Rb8 a8R Qa7 Ba5 Rb5 Rb8 Rh5 Rb4 Rh8 Bb6 Rf8 Rb5 Rfg8 Rbh5 R8g5 Rh6 Rf5 Rhh7 Rf2 R7h4 Ra2
1q1R1B1q/1nBr1Brb/4Bn2/3qqb1B/q1n1N3/1q1r1N2/RR5Q/K1k5 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nd2 exf6 Nb1 f5 Qd2 f4 Qd3 Qe7 Qd1 Qd8 h4 gxh4 a3 b5 Ra2 b3 Rb2 b4 Ra2 b2 Ra1 b3 Ra2 Ra7 Ra1 Bb4+ axb4 Ra8 Kd2 Ke7 e4 Kd6 c4 Ke5 g4 d5 c5 h5 c6 f5 g5 d3 Kc3 f3 g6 d2 c7 Kf4 b5 Ke3 e5 f2 e6 d4+ Kb4 f4 g7 d3 Kc3 h3 b6 f3 b7 h2 e7 h4 e8B h3 Na3 b1B Kb2 Nf6 g8B Nbd7 b8B Ra7 Bd5 Rh7 Bb7 Rg7 Qc2 Nc5 Be2 f1Q Ba6 f2 Bg4 Qe1 Qd1 f1N Kc3 b2 Ne2 Rb7 Rg1 h1Q Ra2 h2 Nd4 Qhd5 Rg2 h1Q Qc2 Qh8 Bh3 Bg4 c8R Rbd7 Nab5 Nb7 Bf7 Qg3 Nd6 Qge5 Bc7 Be6 Bg6 Bg8 Bf7 Bh7 Bhe6 Qdf8 Qa4 Bc2 Qa5 b1Q Ba3 d1Q Re8 d2 Be2 Bce4 Beh5 Bef5 Ne4 Qa4 Qa7 Qbd1 Kb2 Q1b3+ Ka1 Qfg8 Qc5 d1R+ Qc1+ Rd2 Qb2 Rd3 Nf3 Nd2 Rb8 Qd8 Bf8 Nc4 Ra8 Qb8 Rf2 Qba7 Rd8 Qb8 Rh2 Rd4 Qg2 Kd3 Qh3 Ke3 Rb2 Rd3 Ned2 Ke2 Qh2+ Kd1 Ne4 Kc1
1Q3rb1/2KB1n2/B3BB1R/2qR2qN/4k3/2Rn2nn/1q1rb1Nr/3r1qB1 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nd2 exf6 Nb1 f5 Qd2 f4 Qd3 Qe7 Qd1 Qd8 h4 gxh4 a3 b5 Ra2 b3 Rb2 b4 Ra2 b2 Ra1 b3 Ra2 Ra7 Ra1 Bb4+ axb4 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 d5+ Kf3 Kf5 c4 h5 g3 h3 c5 h2 e3 d3 b5 h4 b6 h3 c6 d4 b7 d2 c7 d3 Nc3 b1Q Nd5 b2 Nf6 Nh6 Nh5 Nc6 b8B Qc2 Ne2 b1Q Bb2 Qg5 Ra5+ Qc5 Bf6 Qb2 Qb1 d1R Ba7 Be6 c8R Nb4 Bb6 Rd2 g4+ Kg6 Ke4 f3 Ba7 f2 Rc7 Raf8 Nef4+ Kh7 Be2 f1B Ng2 Kg6 Bb6 Qd6 Rc3 Qdc5 Ra7 Bb3 Rd7 Rh7 Rd5 Rhh8 Bd4 f5+ Ke5 f4+ Ke6 f3 Kd7 f2 e4 Bc4 e5 Nf7 e6 Rh6 e7 Rh7 Rg1 h1N e8B h2 Bf6 Ng3 Ba7 h1N Bb6 Qe5 g5 Kf5 g6 Ke4 g7 Qg5 g8B Rh8 Nhf4 Rh2 Nh5 Nh8 Be6 Nf7 Qa2 Bb3 Qa8 Ba2 Qb8 Bc4 Bd1 Be2 Ba4 f1Q Bb5 Nf2 Rh1 Nh3 Ba6 Rc2 Ba7 d2 Bb6 d1R Ba7 Qcg1 Kc7 Rcd2 B8d7 Nd3 Bc5 Qd4 Ba7 Ba2 Bb6 Qdb4 Bg1 Qc5+ Bc6 Nd8 Nhf4 Qf3 Bf7 Qf1 Rd6+ Bd5 Rd7 Nhf2 Rd6 Rh7 Rh5 Qca3 Bd7 Be6 Rd5 Rh6 Bfe8 Bg8 Be6 Nf7 B8d7 Rh8 Rh6 Qab4 Rg6 Rh2 Nh5 Nh3 Rh6 Qc5+
N1Kr4/1R2r2R/r1BbBN2/n1q2N1r/1r4b1/q4Q2/2br3b/kB2B1qB w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 g3 Na6 Rh3 Nc5 Rh1 Ne4 Nd2 g4 Nb1 Ng5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 a4 d5+ Ke5 f5 e4+ d3 a5 h5 c3 b5 g6 d4 a6 h4 a7 f4 g7 h3 Ne2 h2 Bd2 g2 Bc1 g1B Bg2 f3 Bf4 f2 Bc1 f1R Bh3 b3 Nf4 b4 Ne2 d2 Ra2 d3 Ra3 g3 Ra1 g2 Ng3 b2 Bf5 b3 Qf3 d1R Bg5 d2 Bh4 Ne7 g8B+ Qd5+ Kf6 Rde1 e5 d1R e6 Nc6 e7 Rh5 e8B Re7 Bge6 Na5 Bc6 Rd2 Bg6 Rd7 Nf5 Bd6 Be1 Rff2 Bh7 Rfe2 Ra2 Re3 Ra1 Kd3 c4 Kc2 Nc3 b1R c5 b2 Ne4 Qd3 Ra4 Qa3 Bed5 Ree2 Ke6 Re3 Rc4+ Kb3 Bg6 Ka2 Rb4+ Ka1 Rb6 Bf2 Rb7 g1Q Bh7 Bfg3 Bg6 Bge5 Nf6 Re4 Bh7 Rb4 Be4 Rbd1 Bed5 b1B Be4 Bc2 Bg6 Rb8 a8N Re2 Bh7 Rdd2 Bg6 Ba4 Bb1 Bc2 Be8 Bf4+ Be4 Bfe5 c6 Qc5 c7 Rb6 Rg1 h1Q Rg7 Qhg1 Rh7 Ra6 Bc6 Rh4 Bh5 Rb4 Bg4 Rb5 Bh3 Rb4 Bg2 Re3 Bh1 Bh2+ Qe4 Rh3 Qf3 Rh5 Ne3 Rd8+ Kf7 Bd7 c8B Bg4 Be6 Re8 Nf5 Rbd8 Bc8 Rg8 Ke6 Rde8+ Kd7 Ree2 Bb5 Rg7+ Kd8 Rc7 Bc6 Ree7 Be6 Rcd7+ Kc8 Rd8+
1r1q2q1/Q2qB1RB/3RB3/1bn3b1/rK2n3/R2N3B/1pkBn1n1/3r2bN w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 e4 Kd7 d4 Kd6 Kd2 c5 Kc3 b5 g4 f5 g5 h5 g6 a2 g7 f3 Qd2 h3 Qf2 h2 Qg2 c4 Kb4 f2 Na3 c3 Bg5 c2 Bf6 c1B Kc3 f4 Qg5 b4+ Kc4 b3 Kb5 h4 Bh3 f1R Qf5 b2 Qg6 f3 Bg5+ Nf6 g8B f2 Qh7 Na6 Bd2 Nc5 Qa7 Rd1 Bge6 f1N Kb4 Ba6 Ne2 Ne3 Nc2 Ng2 Ng3 Bb5 Rg1 h1N Ne1 Bh6 Nd3 Be3 Rb1 Qd7 Ra1 Rhb8 e5+ Ke7 Beg4 Nfe4 e6 Kd6 e7 Qd8 e8B Bf2 Ne2 Nhg3 Be6 Be3 B8d7 Bg5 Bhf5 h3 Bh7 h2 Bh3 h1Q Bde6 Nh5 Ng3 Nhf4 Qa5 Qh2 Nh1 Ne2 Qa4 Qg3 Qa7 Ne1 Rg2 Be3 Rg1 Qgg8 Rg7 Ng2 Rc7 Qd7 Rb7 Ke7 d6+ Kf6 d5 Bg1 Rc7 Qdd8 Rg7 Qd7 Ne1 Qdd8 d7 Ke5 d6 Kd4 Nd3 Rb7 Be1 Bg5 Bd2 Rb6 Bg6 Rbb8 Bh7 Qe7 d8B Qd7 Be7 Qgd8 Rc1 a1Q Rc3 Qa2 Rb3 Qg8 Ra3 Qd5 Nc1 Qdd8 d7 Qf5 Nb3+ Kd3 Nc1+ Kc2 Nd3 Qde8 d8R Qd5 Rc8 Qdd7 Rc6 Qec8 Rd6 Qcd8 Qc7 Ra5 Qa7 Ra4+
Nr3nb1/nk1BR1N1/bn4n1/3R2q1/pr2KnbB/1rN3bR/2R5/1R4Q1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 f5 Kf3 d5 e4 Kd7 g4 Kc7 b4 a5 b6+ Kb7 e5 h5 b5 c2 g5 d4 e6 h3 e7 h2 e8R h4 g6 h3 g7 a4 Nc3 d3 Bb2 c1N Qe2 d2 Qe7+ Nd7 Qe3 d1N Qf2 Rh4 Qe2 Ne7 g8R Nd3 Ne4 Nc3 Rg2 Ng6 Rd1 Qg5 Rd2 Rb8 Nf6 Bd6 Rf2 Ndf8 Nh5 Be6 Rd1 Bg8 Qe1 Be5 Ne2 Rg4 Rg1 h1R Ng7 h2 Rg3 Rg1 Bg2 h1B Rh3 Rf1 Rd2 Bd6 Qa1 Rb1 Re7+ Bc7 Ba3 Rb3 Qf1 Nd5 Bd6 N3b4+ Nc3 Nc6 Qg1 Na7 Rd1 Rh4 Rc2 Rg4 Bc5 Rh4 Bf2 Rg4 Ke2 f3+ Kd3 f4 Bh4 f2 Ke4 f1N Bf3 Nfe3 Rd4 Rg2 Bg4 f3 Bd7 Ndf4 Rd5 f2 Rd6 Re8 Nh5 Ra3 Nf6 Kb8 b7 f1B Ra2 Bb6 Nh5 Ned5 Ng7 Bf2 Rd2 Kc7 b8N Bg3 b6+ Kb7 Qf2 Ka8 Qg1 Bb5 Na6 Rd8 Nc5 Ba6 b7+ Kb8 Ra2 Kc7 b8R Rb2+ Kd4 Rb5 Rc2 Bf3 Rbb6 Bh5 Ke4 Bg4 Rb8 Rb2 Rb3 Nb6 Nce6+ Kb8 Nc7 Kb7 Na8 Rb8 Rd1 Rb1 Rb5 Rb2 Rbd5 Rb5 Ra1 Rab3 Rb1 R5b4+
1BnBn1BR/1nqr2r1/2bkq2R/bQr5/5R2/R1N5/1K1p1N2/nq1r3R w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 Ke7 e4 h5 g4 f5 c4 d5 Kc2 b3+ Kb2 d3 e5 h3 e6 h4 b6 d2 b7 d4 g5 d3 c5 h2 g6 f3 c6 f4 g7 f2 c7 h3 Qf3 d1R Qe3 d2 Qg3 f3 Kc3 b2 Ra3 Rh7 Ra1 Nd7 b8B Ra7 Bd3 f1Q Kb3 f2 Bf5 Ngf6 g8R Nc5+ Kc2 Nb7 Ra3 Ne8 Rb3 Qe2 Rb6 f1N Ra6 Rg7 Rc6 Bd7 c8R Qc7 Nc3 Ne3+ Kb1 Ra5 Qe5 Nc2 Qb5 Na1 Rh8 Qe3 Ra6 Bc6 Bh7 Kd6 e7 Qe6 Ra8 Ra7 Bg8 Ra5 Rh6 Ra7 Qe2 Ra5 Qc4 Rc5 Ka2 b1N Kb2 Na3 Qe2 Nb5 Ra3 Na7 Qb5 Nf6 e8R Rd7 Re7 Ne8 Rd8 Nc8 Rf7 Bg7 Rf4 Bh8 Nf3 Rg1 Ne5 Rg7 Rhf1 h1R Ng4 h2 Nf2 Rhg1 Rd1 R1g2 Rh1 Rg1 Rfa4 Rd1 Rah4 Nf6 Rf8 Ne8 Rff4 Rg3 R4h5 Bf6 Rh8 Rgg7 R5h6 Bd8 Kb1 Bg2 Na4 Bf6 Rf1 h1Q Re1 Bc3 Rf1 Qh5 Rh1 Nb3 Kc2 Bd5 Bb2 Ba5+ Bc3 Qhg6+ Kb2 Bg2 Bf6 Bc6 Nc3 Na1 Bd8 Qb1+
rNR5/R2rB2k/7n/n1R1b1Qb/3rN2p/n3qB1r/1B2Bb2/2q1BKn1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 e4 h5 b4 a5 g4 d5 b6 f5 e5 Kf7 b5 Kg7 g5 a4 e6 f3 e7 c2 e8B h3 b7 a3 g6 f4 b6 h4 Bf7 a2 Qd2 f2+ Ke2 d4 Bb2 c1N+ Kf3 h2 Kg2 Rh7 Qd3 Qe7 Nc3 Qe3 Nb5 Bg4 Ne2 Nc6 b8B Nh6 b7 Bh5 Qb3 Na5 Ng3 Bc5 Na7 Ne2 Qd5 Ng1 Be2 f1N Nc6 Nd2 Ne4 Ndc4 Qg5 f3+ Kf1 f2 Bd5 Na3 Bg3 Ba7 Rc1 a1B b8B Bc5 Rc3 d3 Bbd6 d2 Nb8 Bb6 Be7 d1R+ Kg2 f1R Rc5+ Rd4 Be1 Rf3 Bb7 Rh3 Kf1 Nf3 Rg1 h1Q Bc6 Kh8 Bb7 Rf7 g7+ Kh7 g8R Rg7 Rgc8 Rf7 Bd6 Rd7 Bc6 Qh2 Rh1 Qhf4 Be7 Qc1 Rh2 Ng1+ Rf2 Qe5 Rff8 Qe6 Rc7 Qb3 Rfc8 Qbe3 Ra7 Bc7 Nd2 Bg3 Bcf3 Bf2 Ne4 Rd3 Bg7 Be5 Bh8 Bh2 Bd4 Be5 Bb2 R3d4
1k1N4/2nq1R1K/Q1bRR1N1/NNN1n1r1/q1b1p3/2nqqb2/4B3/3rbB2 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Ke2 d5 b4 Kd7 h4 Kc7 c4 e5 h5 a5 h6 d3+ Kd2 a4 g7 g4 h7 g3 c5 a3 c6 g2 Be2 f3 Ke3 f2 Qf1 a2 Na3 d2 Nh3 d1B Ng5 g1Q Nf7 Qd7 Rh6 Ra5 Nd8 Na6 b6+ Kb8 b5 Nf6 g8B Bb4 b7 Be1 Nc4 Ba4 Rd1 a1Q Nd6 Qg6 c7+ Ka7 b8R Bb7 Nc4 Bc6 Rd4 Bd1 Rb7+ Ka8 c8N Nc7 b6 Qa4 Ra7+ Kb8 b7 Rc5 Na5 Rc1 Qg2 f1B Nd6 Ra1 Bf7 Rg8 h8N Qh7 Qg1 Rg5 Nb5 Qhf5 Bfh5 Qg6 Bc4 Bf3 Qf2 Rb1 Qa2 Rd1 Bg4 Qgf5 Ng6 Bd3 Bh3 Bde2 Bf1 Qh3 Bb3 Bc4 Bc2 Qg3 Bcd3 Bb4 Ra6 Qc2 Nf7 Rb1 Qb3 Qe1+ Bde2 Qed1 Rh7 Rc1 Na3 B6b5 Re6 Bc6 Qb2 Ka7 b8N Bc3 Qb5 Qa4 Rd2 d4+ Kf2 d3 Nh4 Ng4+ Kg3 e3 Na6 e4 Kf4 Qd8 Nc5 Qd7 Qa6+ Kb8 Nb5 Ne5 Nd8 Qdc2 Rd1 d2 Bd3 e2 Rhe7 e1Q Rf7 Qf2 Bde2 Ra1 Rb1 d1N Rb2 Rg6 Kf5 Rg5+ Kf6 Qcb3 Rd2 Qe3 Rdd6 Be1 Ng6 Qbd3 Kg7 Nc3 Kh7 Rd1
RR6/1N1rrq2/1rkbR1n1/Kn2p1R1/4q3/q1N1Br1b/nQ4BB/3nR3 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 d5 g4 Kd7 c4 h5 f4 h3 b6 h2 f5 h4 f6 e3+ Kd3 h3 c5 b3 g5 e2 g6 e1R g7 b2 f7 Ra6 b7 Rb6 Ra8 Qe8 Qf3 Nc6 b8B Nb4+ Kd2 d3 Kc3 d4+ Kb3 d2 Ka4 d1N Bd2 d3 Bg2 Na2 Bdf4 d2 Nc3 b1N Qe2 Na3 Ka5 Nb5 Ne4 Kc6 Be3 e6 Bg3 Ne7 g8R Ng6 Bgf4 Rf1 Nd6+ Rf3 Nb7 Bd6 f8R e5 Rf6 Rh7 Re6 Re7 Qf2 Qf7 Ne2 Bd7 Re1 h1Q Nc3 h2 Rg7 Qg1 Bg3 h1Q Bh2 Qf1 Rgg8 Qd3 Rg7 Nf4 Rg5 Ng6 Qe2 Nb2 Rb8 d1R Qc2 Rd2 Qb1 Nd1 Qb2 Qe4 Ra8 Qf1 Rb8 Qfc4 Ra8 Qb3 Rb8 Kc7 c6 Qa3+ Na4 Bc5 Rf6 Bh3 Re6 Rdd7 Ra8 Qb3 Nc3 Bd6 Ra7 Kc8 c7 Rd8 Ra8+ Kd7 c8R Qa3+ Na4 Bg4 Rcb8 Bh3 Rh5 Kc6 Rg5 Qb3 Nc3 Rdd7 Qe2 Qb2 Qf2 Qb3 Qb2 Qa3+
2Nq3R/RBrnq3/6NB/K1p1b2B/5r2/2nq1bn1/2kqN1NN/2b1bQ2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 e5 c5 exf4 c6 axb4 axb5 dxc6 Ra4 c5 Ra1 c4 h4 Kd7 e4 Ke6 d4 c5 Kd2 f5 h5 g5 b6 c3+ Kc2 b3+ Kd3 f3 Kc4 b2 Kb5 f4 e5 Kd5 e6 Ke4 d5 c2 b7 g3 e7 f2 e8B g2 h6 g4 d6 f3 h7 g3 d7 Bd6 Be3 c1B Nh3 g1B Bh5 g2 Bd4 Nf6 Ra2 Ra7 Nf4 Rf8 h8N Be5 Ne2 Nd5 Ng6 Rf4 Nd2+ Kd3 Qe1 Kc2 Be3 Qe7 d8N Nc3+ Kb6 Bg4 Ne6 Bh2 Ra6 g1Q Bg2 f1Q Ka5 f2 Nf3 Nd7 b8N b1Q Nc6 Bg3 Nh2 Rc7 Na7 Qb2 Bb7 Bf3 Nc8 Bh4 Ra7 Qgg5 Bd2 Qd8 Be3 Qge7 Bd2 Qh3 Qf1 Qf5 Be3 Qd3 Bd2 Rf6 Bh6 Rf4 Qh3 f1N Qf5 Rd4 Ne6f4 Be1 Ng2 Rf4 Qh3 Bg4 Qf3 Ng3 Qf1 Bf3 Bf8 Nb8 Bg4 Bd5 Nf3 Nd7 Rh8 Kd1 Bh6 Qbd2 Nh2 Bf3 Bh5 Kc2
rR5N/r2n1B2/q2QB1K1/q4r2/2r1RrRq/1R4N1/1Rbp2r1/kn4qB w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd3 f4 Nb1 h6 Qd1 Bd6 Be3 f2+ Kd2 f3 Bg5 Bf4+ gxf4 hxg5 f5 Kf7 Kd3 Kf8 Kd2 Ke8 Kd3 Ke7 Ke4 Kf6 a4 b5 c4 d5+ Kd3 Ke5 e4 b3 h4 b4 a5 b2 h5 g4 c5 g5 c6 g3 h6 b3 f6 g2 c7 g4 a6 g3 a7 Bf5 c8R Qa5 f7 Rh7 f8R Nd7 Ra2 Ne7 Nd2 b1R Rh4 b2 Rb8 Rc1 Rh1 b1R Rg8 Rb4 Ne2 g1Q Rh5 g2 Rh4 Rcc4 Nf4 Qh1 Rge8 g1Q Bh3 f1R Rg4 f2 Rb2 Rg7 h7 Ra4 Bg2 Qh4 h8R Bh7 Bh1 Rg5 Qf3 Rf5 R8b3 Rfa1 Qe2 f1Q Reb8 R1a3 Rhe8 Qa1 Nf1 Rab4 Kd2 d3 Qh2 Kd4 e5 Qa2 e6 Qa6 Kd1 d2 Ke2 d1R Kf3 Rd2 Ng3 Raa4 Rg5 Rg2 Rg4 Nc6 e7 Na5 Rec8 Rb7 e8B Bg6 Bf7 Qaa1 Rb4 Kc3 Re8 d4 Ke4 Nb3 Re5 Bh7 Ng6 Qa2 Nh8 d3+ Kd5 Qa5+ Ke6 Nd2 Ree4 Nb1 Rb6 d2 R2b3+ Kc2 Rb2+ Kc1 R6b3 Qg5 Qh6 Qh4 Qf6 Rab4 Ke7 Q2a4 Be6 Q4b5 Kf7 Qba6 Kg7 Rf4 Qe5 R4b5 Qd6 Rbc7 Re5 Bd3 Re4 Rbf5 Kg6 Bc2 R8b6 Rb8 a8B Ra7 Bad5 Rba8 Rb8 Na3 Bf7 Nb1 Ra2 Rh5 Bde6 Rhf5 R3b6 Q6b5 Ra3 Kb2 Rd3 Ka1 Rf3 Qc6 Rb2 Qb7 Rfb3 Qba6
3R1RNN/B6r/2n5/p1NNkr2/1r3n2/2N2BBb/3r1n1n/r1n1bKQr w - - 0 1 illegal: No possible last move
1bN1q1bk/1Bq1n1NN/Q1rn2rb/1N3p2/3R1N1b/p2R1B2/n2K4/1q1R4 w - - 0 1 legal: proof: d4 c5 b4 a5 e4 b6 e5 Ra7 e6 b5 a4 bxa4 b5 Rb7 b6 Ra7 f4 h5 g4 hxg4 f5 Rc7 f6 exf6 Ba3 Rc6 Bb4 cxb4 Ne2 Rc5 Ng1 Re5+ dxe5 Rh3 Qc1 Rh7 Qd1 Rh8 c4 d5 h4 g5 e7 f5 c5 a3 c6 b3 b7 b2 c7 g3 h5 f4 h6 f5 h7 Kf7 e8N f3 Qd3 a4 Rh6 d4 Nd2 a2 Rh2 g4 Rg2 a3 Nb1 f2+ Ke2 Nd7 b8R Ndf6 Rb4 Be6 c8B Ne7 Ba6 Bh6 Qc2 d3+ Kd1 d2 Ng7 Qe8 Rh2 g2 Rh3 g3 Qc6 Ne4 Bfe2 f1Q+ Kc2 d1N Bf3 Ndc3 Rd4 Qc4 Bb7 Nd6 Qa6 Qc7 Ne2 g1R Nf4 g2 Kd2 Kf8 Rg3 Bg8 e6 Rc1 Rh3 g1B Rg3 Bf2 Rh3 Na4 Nc3 b1Q Nb5 Rc6 Rg3 Nc3 Rh3 Qb4 Rd1 Bh4 Rg3 a1B Rh3 Ned5 e7+ Kf7 Rg3 Qb1 Rh3 Na2 Rg3 Qa8 e8N Ne7 Nf6 Qe8 Rh3 Kf8 Rg3 Bd5 Rh3 Rg8 h8N Bb3 Nf7 Be6 Ngh5 Rg6 Nh7+ Kg8 Ng7 Bb2 Rb4 Be5 Rd4 Ndc8 Nfd6 Kh8 Bd5 Bg8 Rhd3 Nb6 Nc8 Nc4+ Ke2 Nd6 Bf3 Rg4 Kd2 Rg6 Rc4 Bd4 Rb4 Ba7 Rbd4 Bb8
kB3R2/nr4K1/R1nr4/2p4N/RQb1Nq1R/p3R1Bq/2q1b2n/2Brn3 w - - 0 1 legal: proof: f4 b5 c4 d5 a4 bxa4 g3 dxc4 Nf3 e5 Ng1 exf4 Qc2 f3 Qb3 Ne7 Qd1 Ng8 Ra2 f5 Bh3 h5 Ra3 f4 Bg4 hxg4 Ra1 Be7 Qb3 f2+ Kd1 f3 Kc2 Rh4 Qd3 Bg5 Qb3 Bf4 gxf4 Rh8 Kc3 Ne7 Qd1 Ng8 Kc2 Ke7 Ra2 Kd7 Ra1 Ke8 Kc3 Kd7 Kd4 Kc6+ Ke5 Kb7 h4 f1B e4 a5 b4 c5 d4 g5 d5 c3 h5 c2 h6 f2 b5 a3 d6 a4 h7 a2 b6 g3 d7 g4 f5 g2 f6 a3 f7 g3 f8R Bc4 Nc3 f1Q Qd2 Ra6 Rb1 a1N Rb4 Ka8 Ra4 Ne7 Nge2 g1N Rh6 g2 Nf4 Nf3+ Kf6 g1R e5 Qc7 d8B Nbc6 e6 Qh3 Ne4 Rd1 Qb4 Nh2 Nh5 Qf4+ Kg7 Na7 Bc7 Nec6 e7 Be2 Bb8 Be6 e8R B6c4 Rhe6 Nb3 Rg6 Nd2 Ree6 Ndf3 Rg3 Ne1 Re3 Qff5 Be5+ Nd8 Bg3 Qf4 Rf7 Re8 h8R Ndc6 Rff8 Red8 Rhh6 Ra5 Reg6 Rb5 Rg4 Rd6 Rh4 Rd1 Bd2 c1Q b7+ Kb8 Rg6 Qc2 Bc1 Rb6 Rf7 R8d6 Rf8+ Kc7 b8B+ Kb7 Rh6 Ka8 Rg6 Ne7 Re6 Rb7 Rg6 R6d5 Rc6 Rd6 Rca6 Nc6+
1K1n2B1/Qr1br2b/2Nrb2N/2p1N2B/4b1R1/1N1nRr1k/N1q1R2p/4q3 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 g5 Nc3 g4 Nb1 dxc6 Nh3 c5 Ng1 c4 h4 g3 Bb2 Qg5 Bd4 Qh5 Be3 Bh6 Bf2 Bg5 hxg5 Qg4 g6 Be6 Qb3 gxf2+ Kd1 Qh3 g4 Qg2 g5 Qd5 Kc1 Bc8 Qd1 Qd8 Kb2 Ke7 e4 Ke6 d4 b5 a4 h5 e5 Kf5 g7 c3+ Kb3 f3 d5 Kg4 a5 f5 d6 c2 g6 c1R e6 h4 a6 f4 d7 h3 e7 h2 e8R Nf6 g8N Ra7 g7 Nh5 Qd2 Rh6 Qd4 Nc6 Qc3 Rd6 Bg2 f1Q Ra2 f2 Ra4 f3 Qa1 Qe1 Re2 f1B Nd2 f2 Ngf3 Nf4 Ne5+ Kh4 Bd5 Nd3 Bf3 Bh3 Nh6 f1R Bh5 Rf3 g8B Bg4 Ra3 Kh3 Rg1 Qg5 d8N Qg6 Qd4 Bgd7 Rg4 Rb7 a7 Rc5 Ne6 Nd8 a8N Rc4 Qe3 c5 Nd4 Rc7 Ndc6 Re4 Nb6 Be6+ Nd5 Bcd7 Qf4 Ree3 Qf7 Qe4 Kc2 b3+ Kc3 b2 Ndb4 b1B Na2 Bc2 Qf4 Qg6 Qa4 Bb1 Qa7 Re4 Nc4 b4+ Kb3 Qf5 Ka4 b3 Ka5 b2 Kb6 Bc2 Ka6 b1B Ne5 Nf2 Rg6 Bf7 Neg4 Re7 Ne5 Bfe6 Rg4 Qe4 Rc3 Qc4+ Kb6 Bh7 Nb3 Bbe4 Rd3 Qc2 Rde3 Nd3 Ka6 Nf7 Kb6 Rc8 Kb7 Rc7+ Ka8 Nd8 Kb8 Rb7+
R1R5/N2k1B1B/1brrq1n1/2rR2K1/2r2qNR/1Q4p1/1r2Nn1p/R1r3q1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 g5 cxd4 g6 e5 Ba3 e4 Nh3 e3 Ng1 fxg6 Bb2 g5 Bc1 g4 Bd2 Qb6 Nf3 Qa5 Ng1 Qd8 Bh3 exd2+ Kf1 Qb6 Kg2 Nh6 Kg3 Qa5 Bf1 Ng8 Kg2 Qd8 h3 Ra6 Kg3 Ra3+ Kg2 Ra8 Kg3 g6 Kf4 g3 Ke4 g5 Kd3 g2 Rh2 b6 Na3 g4 Rh1 g3 Nb1 Bb7 Qc1 Bf3 Qd1 Bg4 hxg4 Be7 Qe1 Bd6 Qd1 Bf8 Ke4 d5+ Kf5 h5 f4 d3 e4 b3 c4 b2 a4 h4 g5 h3 a5 h2 g6 d4 e5 b5 g7 b4 a6 b3 e6 Nc6 c5 Rh6 a7 Ne5 c6 Qh4 e7 Ng6 c7 Kd7 e8R Nf6 g8B Rc8 a8N Bc5 Bh7 Bb6 Nh3 g1Q Rh8 Ne4 Nc3 b1Q Ne2 b2 Qb3 d1R Nf2 d2 Ng4 d3 Ra5 Qe7 Rd5+ Qd6 Bg2 Nf2 Kg5 Qc1 f5 b1R f6 Rb2 f7 Rf1 f8R d1R+ Rf4 d2 Be4 Qc4 Bb1 Qc6 Ba2 Rc1 Re8 d1R Rg8 Rf8 c8R Rc4 Nc7 Re8 Ra8 Rc8 Nb5 Rdd2 Rh8 Rfc1 Na7 Qa4 Re4 R8c5 Rhc8 Rdc2 Ne3 Rc6 Rh4 R4c5 Ng4 R2c4 Rf5 Qe6 Rd5+ Rd6 Bb1 Nh8 Bbg6 Qb4 Bh5 Rf6 Bf7 Ng6 Kh6 Qd2+ Kh5 Qd4 Kg5 Qf4+ Kh5 Qg2 Nh6 Qeh3 Nc3 Rcb1 Re1 Qg1 Ne2 Ra1 Rg5 Rdc6 Rd5+ Rfd6 Rf1 Qe6 Ng4 Rac1 Re1 R1c3 Ra1 Qfe4 Kh6 Rc1 Kg5 Qf4+
1r1Nn1b1/1nQ1KNb1/1R1Bppn1/5R2/k4qbB/Bn6/2B2b1R/1Bq4b w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 e4 b5 f3 gxf3 Qd3 d5 Qd2 d3 Qe2 d4 Qd1 Ra7 Ba3 Rd7 Bc1 Rd5 exd5 Qc7 Ne2 Qb6 Ng1 Qd8 Kd2 Kd7 c4 g5 h4 b3 a4 g4 a5 e6 h5 g3 d6 Kc6 h6 f2 h7 g2 d7 b4 a6 b2 c5 Kb5 c6 b3 c7 Bg7 a7 Qf6 d8B Nd7 a8B Ne7 Nf3 g1B Be4 Bb7 c8R Ng6 Na3+ Ka4 Ng5 b1Q Qc2 Nc5 Rc6 Rf8 Be7 Rb8 h8B Qf3 Qc3 b2 Rb6 Qf5 Rh2 Qf4+ Kd1 d2 Ke2 d1N Bd6 Ne3 Nc2+ Qa2 Rb1 Nf5 Nb4 Qa3 Nc6 Qa1 Bh3 f1N Nd8 Nd2 Bc2+ Ndb3 Bg2 Ba8 Bge4 Nb7 Kd3 Bf2 Kc4 d3 Rb5 d2 Rd5 Nd4 Rf5 d1B Qg3 Nb5 Qc3 Bh6 Bf6 Nc7 Qe5 Bh5 Qc5 Ne8 Qc7 Qg4 Bfe7 f6 Ngf7 Bf8 Bg5 Qf4 Bh4 Bg4 Ba3 Bg7 Bed6 Bc5 Rd1 b1B Rdd5 Bf2 Rb5 Qb2 Rb6 Qh6 Bed3 Qbc1 Be4 Nc5 Bd3 Bh1 Be4 Nb7 Bd3 Qcf4+ Be4 Ba2 Bb1 Qc1+ Bec2 Qhf4+ Kd3 Bh5 Re5 Qf3+ Kc4 Qg3 Be7 Qcg1 Bd1 Nf4 Bd3 Bb1 Bec5 Bg6 Rh5 Bc2 Rf5 Bh7 Be7 Ng6 Beb4 Nd4 Bf8 Qf4 Bfe7 Nbd6+ Kc5 Bg8 Be4 Nb3+ Kc6 Qe1 Kd7 Nb7 Bed6 Qed2 Bd3 Qc1 Be4 Nf8+ Ke7 Bd3 Bg3 Ba6 Bb1 Be2 Bh4 Bg4 Bdc2 Ng6+
2q4K/prr5/4R2n/b1q1bRpk/p4q2/2QRRRB1/1q4NN/B1qn2B1 w - - 0 1 illegal: No possible last move
q3B2B/1pR1qn1r/1NpNR3/4n3/Qq1N3B/2q1p1qK/3pbb1B/1k4B1 w - - 0 1 legal: proof: c4 d5 e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 f6 Na3 fxe5 Nb1 Ra5 Bb2 exd4 Bc1 d3 Kd2 d4 Ke1 Rd5 cxd5 Bd7 Bf4 Bf5 Bc1 Bc8 f4 Kd7 Kf2 Kd6 Kg2 Kc5 h4 Kc4 a4 e5 h5 g5 d6 b3 f5 b2 f6 g3 a5 e4 a6 c6 f7 g4 h6 Nd7 a7 Rh7 a8N Qe7 Nf3 Ne5 Na3+ Kc3 d7 b1Q d8B d2 Qe2 d1Q Qa6 d3 Nb5+ Kc2 Bf4 d2 Nd6 Qb4 Nb6 Qc1 Nd4+ Kb2 Qa4 Qcc3 Ra3 Kb1 Rh2 Be6 Be2 Bc4 Bf3 Bg7 f8B Be2 Be3 Bf6 Bg1 Bg5 Bg7 Be3 Bf6 Bf2 Bh4 e3 Bc7 Rh8 h7 Nh6 Ra2 Nhf7 Rh3 Rg8 h8B Rg7 Rc2 Rh7 Bd5 Qd3 Rc5 Qa6 Be6 Qa8 Bd7 Qc3 Be8 Qb4 Kh1 g2+ Kh2 Qc3 Rf3 g3+ Kh3 Qb4 Rf6 Qc3 Re6 Qb4 Bh2 g1Q Rd5 Qc1 Bg1 g2 Bb8 Nd3 Rg5 Nde5 Rg7 Qcc3 Bh2 g1Q Bc7 Qgg5 Bg1 Nd8 Rf7 Qef6 Rd7 Qe7 Bb8 Qf4 Rc7 Ndf7 Rd7 Rh6 N6b5 Ng4 Bd6 Rh5 Rc7 Rh7 Bde5 Qfg5 Beh2 Nge5 Nd6 Qg3+
nb5b/2pB1N2/1RNB1b2/8/R3bR1p/QnqBpp1R/K1Rp3q/1r4k1 w - - 0 1 illegal: No proof kernel
nr3r1B/1n4BK/kqR2n2/qb4b1/B2rq2R/2nqBNQ1/1R1n1B2/N6q w - - 0 1 illegal: No possible last move
1N1r2n1/7R/qN2q1RB/N2b1kbb/r1BR4/n1Q2r2/4RRK1/1q1nqrr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 e4 b5 g4 d5 a4 h5 c5 f3 c6 b3 a5 d3 a6 b2 c7 d4 a7 d2 Ra6+ Nc6 Rh2 h3 Na3 b1R Rg2 d3 Rb6 h2 Qb3 d1B Nh3 h1R Ng5 h4 Qc4 d2 Be2 b4 Qc5 h3 Bc4 h2 Be6 b3 Qb4 b2 Nc4 Bb7 c8N Qe7 Na5 Ne5 Bc4+ Qe6 Qc3 Be7 Rd6 Bd5 Nb6 Rh4 Rd7 Rd8 a8R Be2 Kg3 d1N Raa7 f2 Nf3 f1R g5+ Kg6 Be3 f5 Rf2 f4+ Kg2 Rc1 Rd6 b1Q Nd4 Bh5 Ndc6 Rh3 Bd2 Rf3 Nb8 Rc2 Rc7 Ra2 Rb7 Bf6 Rh7 Ra4 Be3 Nc6 e5 Nd4 Rdd7 Kf5 g6 Bg5 g7 Nb5 Bc1 Na3 Bd2 Qe8 e6 Qg6 e7 Qe6 e8R Re1 Rb7 Qe5 Nbc6 Nh6 g8R Rfe3+ Rf3 Bh4 Rbg7 Rhg1+ Kh3 Bf6 Rg2 h1Q+ Rh2 Bh4 Rg6 Ng8 Rfg3 f3 Be2 f2 Rg4 Rf3 Nb8 Qd6 Ree4 Qe6 Bh6 Be7 Rd4 Bh4 Ba6 Be7 Rd2 f1Q+ Rg2 Qc4 Re2 Qcc8 Bb5 Qa6 Bc4 Bf6 Ree4 Be7 Rg6 Bg5 Rd4 Rd3 Re3 Qhe4 Rb2 Rh1+ Kg3 Ref1 Ra2 Ke5 Rf3 Qe1+ Kg2 Re3 Rd3+ Ke4 Rff2 Rf3 Rd4+ Kf5 Rae2 Rhg1+
1n3r2/2Rn1N2/R1b2Rb1/1q1bq1B1/QNB3k1/1RBqq3/2rb1r1K/3rRq2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kf6 h4 Kf5 c4 b5 a4 g5 a5 d5 a6 d3 a7 d4 e3 f3+ Kh2 f2 c5 b3 c6 g3+ Kg2 b4 h5 b2 c7 g4 h6 d2 h7 d3 Rh2 b3 Rh4 Be6 c8R Bd5+ Nf3 Bb4 Ra6 Nf6 Na3 b1Q Rc3 b2 Rb3 Rf8 h8B Nfd7 Kh1 g2+ Kh2 g3+ Kh3 g1Q Re6 g2 Qc2 d1B Nb5 Bd2 Ng5 B1f3 Be2 Qe1 Ra4 f1R Nc3 g1Q e4+ Kf4 Raa6 f5 e5 Qe3 Kh2 Kg4 Na2 f4 Rec6 Qa5 e6 Qb5 e7 Qe5 Bd1 Q1e3 Rf6 Rc8 Be2 Rc7 Qd1 Rc2 e8R Bc6 Nb4 Bd5 Qe1 Rf2+ Kg1 Bc6 Bf1 Bfd5 Qd1+ f3 Be2 Rc4 Kh1 Rf4 Nf7 Qc2 Rc8 b1B Rc7 Qcc4 Bf1 Re2 Qc2 f2+ Kh2 Qcd4 Qa2 Qde4 Qa4 Qec4 Bg2 f1Q Bg7 Be1 Bh8 Rc2 Bg7 d2 Be4 Qb2 Bd3 d1R+ Bd2 Qcd4 Bc4 Qdd3 Bh6 Qbe5 Bg5 Rcc1 Bc3 Bd2 Rh6 Rc2 Rf6 Bb7 Rae6 Bbc6 Re8 Na6 Re7 Rf8 a8R Nab8 Ra6 Qe3e4 Ra8 Q5d4 Rf5 Qdf3 Bh4 Rb2 Ra6 Qee1 Re3 Qe5 Rf6 Bg6 Qa3 Rc2 Qa4 Qfe4 Bg5 Qed3 Rf3 Q1e4 Re3 Qef3 Re2 Qfe3 Re1 Rf2#
qbq1r2r/2B4r/1nRqN3/k3n2N/q2bbN2/1b2rN2/1QRK1R2/1BN4r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 d5 c4 Kd7 h4 Kc7 a4 Kb6 c5+ Ka5 e5 b5 h5 f5 e6 g5 h6 f3 c6 f2+ Kd2 d3 h7 b3 e7 b2 e8R g3 c7 f4 Qe2 g2 Rh5 b4 Nf3 g1B Qe4 b3 Re5 g4 Ra3 g3 Ng5 f3 Rh3 g2 Rh6 Nc6 Ne6 Nf6 Ng7 Bd6 Qf4 Be6 c8N Nd7 Kc3 d2 Ra2 d1Q Qf6 Nb6 Ne7 Qc8 Ng6 Bb8 Bd3 f1Q Bf4 f2 Nd2 b1R Re2 b2 Bc7 Ne5 Nh5 Ra1 Bc2 b1B Ngf4 Re8 Bf5 Be4 h8N Bf7 Nd3 d4+ Kb2 Bc4 Nc1 d3 Kc3 Bb3 Rc2 Ra3 Nf3 d2 Ng6 Qfe1 Qh8 f1R Ngf4 Be3 Bh7 g1R Rc6 Rg7 Rf2 Rh1 Bf5 Rh7 Qf6 Ka6 a5 Kb5 a6 Ka5 a7 Qg1 Qh4 Qg8 Qf6 Qf8 Qg7 Qd6 Qh8 Qf1 Qg7 d1Q Qf6 Q1d5 Qh8 Bd4+ Kd2 Qfb5 Bg6 Nd3 Qe5 Qa4 Qf6 Bc5 Qb2 Bd4 R2c4 Rhh8 Bd8 Bf5 Rc7 Bc2 Bh7 Qdb7 R7c6 Ne5 Bg6 Be6 Bd3 Bf5 Be4 Bd1 Bb1 Re3 Rc3 Bb3 Rc2 Bc7 Ncd3 Rb8 a8N Be4 Nc1 Qa6 Nce2 Rb7 Nc1 Bb8 Nc7 Qa7 Nce6 Rbh7 Bc7 Qa8
B2n3K/BQRN3r/n3r3/q1Rr2qq/1B1kbN2/4b3/3b3r/nR1RRnq1 w - - 0 1 illegal: No possible last move, all moves rejected
4KbRb/B2R1nr1/q1R2q1N/k3p3/B2n1Q1r/2Nbb2q/n4N2/rR1R2b1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 d5 h4 Kd7 c4 Kc6 a4 Kb6 f4 g5 f5 d3+ Ke3 d4+ Kf2 g3+ Kg2 g4 h5 d2 h6 d3 c5+ Ka5 c6 b5 c7 b3 f6 b2 h7 e3 f7 b4 Rh5+ Bf5 c8N e2 Rh1 e1B Rh6 b3 Nh3 Nc6 Nd6 Nd4 Nf2 Ra7 Qf3 d1R Be3 d2 Bb5 Bd3 Nc3 b1N Qf4 b2 Nf5 e5 Rg6 Qf6 Nh6 Rc1 Bc6 d1Q Bb5 Bg7 f8R Qb3 Rb8 Qc4 Bc6 Qa6 Rd8 Rf7 Rd7 Bf8 Bb5 Rg7 Bc6 Nb3 Ba7 Nd4 Nb5 Nc3 Rb1 Na2 Nc3 Bd2 Bb5 Rf1 Rd1 b1Q Bc6 Kb4 a5 Qb3 Ba4 Re1 Qf5 Bg5 Qf4 Qac4 a6 Ka5 Bc5 Qa3 a7 Qca6 a8R Rh1 Ba7 Rf1 Nf5 Nh6 Rb8 Nf7 Nh6 Rh1 Rb2 Rh4 Rbb1 Rhg8 Kg1 g2 h8R Qb3 Nfe4 Qbe6 Kf2 g3+ Ke3 g1B+ Nf2 g2 Rb2 Be7 Rbb1 Ra8 Rc8 Bf8 Rc6 Bb5 Ke4 Qh3 Kd5 Bd3 Nfe4 Be3 Nf2 Rh7 Rg7 g1B Rg8 Rg7 Rcb6 Ne6 Kc6 Nd4+ Kc7 Qff5 Rc6 Bf6 Rcd6 Rh7 Rdb6 Bh8 Rc6 Rg7 Rd8 Ne6+ Kd7 Qf6 Ke8 Nd4 Rd6 Rb8 Rc6 Rb2 Rd7 Rc2 Rb8 Rc1 Rbb6 Ra1 Rb8 Qhf5 Rbb1 Qh3
1nr2rn1/rRB4q/qR2N2R/1np2b2/4k1N1/nn2Bn2/1B1nK1BB/3Q2b1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 Kf7 d4 Kf6 h4 Kf5 a4 e5 h5 b5 a5 g5 h6 e3 d5 e2 h7 g3 d6 g2 a6 e4 d7 b3 a7 b4 Ra6 g4 Rb6 c3 Bd2 c2 Rhh6 c1N Qc2 g3 Qc6 b2 Nc3 b1N Re6 b3 Qc4 b2 Be3 Qh4 d8B Nd2 Nb5 b1N Bc5 Na3 Nh3 g1R Qc3 g2+ Nf2 Ncb3 Be3 Bc5 Qc1 c6 Nc7 Nb5 Qd1 Rh1 Qc2 g1Q Rh6 Qg6 Qd1 Bd4 Rb7 c5 Ne6 Rh3 Bc7 Rf3 Bg2 Qhh5 Nd8 Qa6 Ng4 Qf7 Bg1 Be3 Bh2 Bg1 Rbb6 Rd3 Ne6 Rd8 Rb7 Rf8 Rb6 Nf6 Rb7 Rhg8 h8B Qh7 Rb6 Bd7 Rb7 Rc8 Bg7 Rgf8 Bh8 Ng8 Bb2 Nb1 Rb6 N1a3 Rb7 Na1 Kd2 e1N Ke2 e3 Rb6 Nf3 Rb7 Ke4 f5 Rf7 f6 Rff8 f7 Nb3 Rb6 Rfd8 f8B Re8 Bh3 Nfd2 Be7 Red8 Bg5 Rf8 Bg2+ Kf5 Kd3 e2 Be3 e1N+ Ke2 Nef3 Nf4 Qa5 Rb7 Ke4 Rbb6 Bf5 Ne6 Nd7 Rb7 Rab8 Rb6 Rb7 a8R Qa6 Rb8 Ra7 R8b7 Nb8
2bB1b2/b2b1r1R/1N3RK1/1qr3Br/BRb2nk1/2nn4/2p4r/BNQ3rB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Ke6 e4 c5 d4 b5 a4 f5 e5 g5 h5 b3 h6 b4 a5 g3+ Kf3 b2 a6 b3 a7 g2 h7 g4+ Ke2 c3 Kd3 f3 Bf4 c4+ Ke3 g3 Ra4 f2 Qe1 Qe8 Qc1 Na6 Rh6+ Nf6 Qe1 Nb4 Bd3 f1R Rh1 Nh5 Qd2 Qb5 Na3 b1B Bg5 b2 Bc2 f4+ Ke4 f3 Ne2 g1B Qe3 g2 d5+ Kf7 d6 Ke6 d7 f2 d8B Ba2 Qf4 b1N Bd1 Nd3 Rh3 Bd7 Rb4 Rc8 a8B Rc7 Bgf6 Bc8 Bc2 Rf7 Ba4 Rd1 Qe3 f1B Bg5 Rd2 Bc6 Nhf4 Rh2 c2 Nc3 c1R Nd5 Rg8 h8B c3 Ba8 Rg6 Rh7 Rh6 Qe1 Rcc2 Qc1 Rh5 Bc6 Rg7 Bb7 Ba7 Nb6 g1R Ba8 Rdh2 Bb7 Kf7 e6+ Kg6 e7 Bfh3 e8R Rf7 Re5 Bhd7 Rf5 Rh6 Bd4 Kh5 Rf6 Kg4 Ba8 R6h5 Bc6 Nc5+ Ke5 Bae6 Bh1 Ncd3+ Ke4 Rb2 Be5 Rb3 Bd4 c2 Ba1 Rc3 Rh8 Rc7 Rh7 Nc5+ Ke5 Nc3 Nb1 Bc4 Re6 Re7 Kf6 Ncd3 Rd6 Rc5 Re6 Ng2 Kg6 Rf7 Rf6 Ngf4+
4qQBq/K7/B5Nq/nBrrnqb1/1r2b3/3pRNBB/kN4b1/1R1q2q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 g4 b5 a4 h5 e5 f5 g5 d5 g6 f3 a5 d3 Ke3 d4+ Kf2 d2 e6 h3 g7 d3 Ke3 f4+ Ke4 b3 e7 Kb4 e8B f2 a6 f3 c5 h4 c6 b2 a7 h2 c7 h3 Ra5 Rh5 Nc3 b1Q Bg6 Rd5 Bf5 Nc6 Bd7 Bb7 c8B Ne5 Be8 Ne7 g8B N7c6 Bef7 Be7 Bg4 Qe8 Bd7 Bg5 Na4 Rc8 a8N Qa1 Qe1 Kb3 N8b6 d1Q Nb2 b4 Bf4 Qab1 Rc5 Ka2 Bg3 b3 N6c4 Na5 Bb5 Bc6 Bg2 f1B Qb4 f2 Nf3 Ba8 Rg1 h1Q Rc7 h2 Bh3 Bg2 Qf8 f1Q Re7 Bb7 Bfe6 Rcc5 Bc8 Ba8 Bca6 Qf2 Re1 Qa1 Rb7 Qhg1 Re3 h1Q Rb8 Nd7+ Ne5 Qff1 Bhe6 Qh6 Ng6 Ne5 Bh3 Qff2 Na4 b2 Rb6 b1R Nb2 Rc3 Rb7 Rb3 Rb8 Rc5+ Kd4 Be4 Ne1 Qf5 Nf3 Rc6 Rb6 Rd6+ Kc5 Rc1+ Nc4 Rd8 Rb8 Rd5+ Kb6 Rbb1 Ka7 Rb4 Nb2 Rc5 Nc4 Nf7 Rc8 Qah8 Nb2 Rc2 Rc5 Ne5 Rc7 Re2 Rc1 Rc2 Rb1 Rc5
bB2Nqr1/1n5k/BbNb4/2bR4/BN1Q2Np/q2n1n1K/3n2R1/N3br1n w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 f4 Kg6 Kf2 c5 Kg2 e5 a4 b5 d4 h5 d5 e3 a5 e4 d6 e2 d7 e1B g5 c3 f5+ Kh7 f6 h3+ Kh2 b3 a6 e3 f7 c2 a7 e2 Ba3 c1Q Qd6 b4 Qf4 b2 Qh4 b3 Nf3 c4 Qf4 h4 Bg2 c3 Nfd2 c2 Bb7 Na6 Qd4 Nh6 Nc3 b1N Nd5 b2 Nb3 Nc5 Rg1 Nf5 Ba6 Bb4 Rg2 e1B Ra2 Qe8 d8N Nd2 Na1 b1N Nc6 Rg8 Rb2 Rb8 a8N Nd3 Nac7 Bbc5 Rb5 Nd6 Ndb4 Bb7 Ra5 Bb6 Rd5 Ba8 Bb2 Qd8 Ne8 Nb7 Ba3 Bfc5 g6+ Kh6 g7 Kh7 Bb2 Qc8 Bc3 Qa3 Bb2 c1B f8N+ Kh6 Nd7 Kh7 Nde5 Nf3+ Kh1 h2 Ng4 Bcd2 Bc1 Bg5 Bf4 Bge7 Bg3 Rf8 Bd6 Nbd2 g8B+ Kg6 Be6 Kh7 Bd7 Qd8 Bg3 Rc8 Bb8 Bed6 Na7 Rf4 Ba4 Qe7 Nac6 Qf8 Re2 Rf5 Kg2 h1N Rf2 Ng1 Re2 Rf1 Rf2 Ngf3 Kh3 Rc7 Rh2 Rg7 Rg2 Rg8
2Q1R1n1/1B2bb1N/q1qb4/q3rRrR/1q1R2pq/n2N4/2BK3k/1bR1Bb2 w - - 0 1 illegal: No possible last move, all moves rejected
2Bn2BR/qn2NpN1/bqQ3bq/b2KB2B/2RN2b1/5r2/1q3k2/r3q1bB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 h4 Ke4 a4 g5 c3 d5+ Kb5 g3 a5 f3 a6 g4 e3 g2 h5 g3 c4 f2 c5 d3 c6 b3 a7 d4 Kc4 b2 h6 b5+ Kb3 b4 Kc4 d2 c7 b3 h7 d3 Na3 b1Q Ne2 Kf3 e4 g1Q e5 g2 e6 b2 e7 Nd7 e8B Ne7 Qa4 d1B Nc2 d2 Ne3 Nc5 Bd7 Nc6 Nf5 Ba6+ Kd5 Nb7 c8B Bb4 Ng7 Qb6 Bf5 Ncd8 Qc6 Ba5 Nd4+ Kg3 B5d3 Bg4 Bfe2 d1Q Ra4 f1Q Rc4 Qf6 Bf4+ Kf2 Be5 Qh6 Bg6 Re8 h8N Qde1 Bh7 Qbc1 Ng6 b1B Rh4 Qcb2 Ne7 Bd3 Bg8 Bg6 Nef5 Re6 Ne7 Rf6 Rh2 Rf3 Rh5 Qe3 Rh8 Qh2 Bd1 g1B Be2 Qhh6 Bd1 Rb8 a8B Qa7 Nde6 Qeb6 Nd4 Ra3 Bf3 Ra1 Bd1 Bd7 Bh5 Bg4 Be6 Rc8 Bf5 Rb8 Bc8 Nd6 Qc7 Q6b3 Bc6 Rb6 Kc5 Rb4+ Qb6 Rba4 Bd5 R4a3 Bh1 N6b7+ Kd5 Qb5+ Qc5 Qbb6 Qc6 Rf3
1q2NBr1/KB3p1n/1n2N3/3qbk2/1Q3n2/1b1r2Rb/b4R1N/B1NNnn1b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Ke6 e4 g5 c4 d5 h4 b5 c5 f3 h5 d3 Ke3 f2 Kd4 g3 e5 d2 a5 g4 a6 g2 a7 g3 h6 b3 c6 b2 c7 b4 h7 b3 Ne2 g1N Rh5 g2 Rh1 Bd6 Rh2 Kf5 e6 Nd7 e7 Nb6 e8N Be5+ Kc5 d4 Ra3 d3 Nbc3 b1B Qe1 d1Q Bh6 d2 Bf8 b2 Nf6 Ba2 Nc1 b1B Ng4 Nh3 Ba6 f1N Bb7 g1N Rf2+ Nf4 Nh2 Nf6 Rb3 Bd7 c8N Rg8 h8B Nf3 Ra3 Qb3 Nd1 Be4 Bhg7 Rb8 a8N Nh7 Nc7 Qd3 Ne6 Qd5+ Kb4 Ra8 Rc3 Ra3 Nd6+ Kg6 Re3 Rd3 Ne8 Qb8 Bf6 Kf5 Bh8 Qc4+ Ka5 Qd5+ Ka6 Bc8 Nb2 d1B Qb4 Ne1 Rg3 Ba4 Nd1 Bh1 Bf6 B4b3 B6g7 Bc7 Ba1 Be5 Ng5 Kg6 Re3 Bf5 Ne6 Bg4 Rh3 Kf5 Rg3 Qbd6 Ka7 Bh3 Bb2 Qd8 Ba1 Qb8+
K2N1Rb1/2BpR1bB/2R4r/3BNQ2/k1qbnqRn/8/qR1q2r1/q1b4b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 h4 f5 c4 b3 e4 g3+ Kf3 b2 a5 d3 h5 g2 h6 g4+ Kf2 f3 Ke3 f2 Kd4 d2 Kd5 f4 a6 b4 c5 f3 c6 b3 a7 g3 h7 Nh6 e5 Qc7 e6 Kd8 Ra5 Nf5 Rh2 Qf4 e7+ Kc7 e8B Kb6 c7 Nh4 Be2 f1Q Nc3 b1B Bd3 f2 Qh5 d1Q Qf5 b2 Na2 Na6 Ra4 Qdd2 Bf7 Bg7 Nb4 Nc5 Nf3 g1B Nc6 g2 Nd8 Ne4 Ne5 Ba2+ Rc4 Rg8 h8R Kb5 Rh7 b1Q Bb2 Ba6 c8R Bb7+ Rc6 Qfe2 Bc3 f1Q Ba5 Qa1 Bc7 Bd4 Bb1 Rc8 a8R g1B Rb8 Bge3 Bc2 Nc5 Kd6 Qfb1 Ra4 Qc4 Bd5 Bb3 Rg2 Qba2 Rg4 Rh8 Ra5+ Kb4 Rb5+ Ka4 Rbb6 Qde1 Bb1 Bc1 Bc2 Qed2 Bce4 Bf6 Re7 Rh6 Bd3 Bc2 Rb2 Bg7+ Qf6 Bb3 Bh7 Ne6 Qf5 Ng5+ Ne6 Rg8 Rf8 Bf6 Nd8 Rgg6 Ba5 Ne4+ Kc7 Bg7 Kb8 Rg5 Rg1 Rg2 Bc7 Rf2 Rg4 Rg2 Rcg6 Ba6 Ka8 Bb5 Bb7 Bc6 Rd6 Bd5 Rb6 Bg8 Bd5 Bd1 Rd6 Bf3 Rc6 Rh2 Bg6 Bh1 Bh7 Rg2
bR1r2N1/b3B1rB/KrNn2Rn/2q4q/4b1QR/7R/nnn2pR1/r4kB1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 a4 d5 c4 f5 h4 g5 e3 b3 h5 f3 h6 b2 h7 f4 a5 g3 c5 g4 c6 g2 c7 g3 a6 f2 a7 d3 Qh5 f3 Ra3 d4 Qc5 d2 Qc3 d1N Rb3 d3 Qc5 d2 Rh6 Nc6 Rd3 Nce7 Rh5 Nc3+ Ka5 d1N Ne2 g1Q Rdd5 b5 Nd4 g2 Rd6 b4 Nc6 b3 Rg6 Na2 Qg5 Nf5 Rh3 Bb7 Kb5 Ngh6 c8R Qd7 Rb8 Qf7 Qg3 Rg8 h8B Bc5 Bf6 Rg7 Be7 Nd6+ Ka5 Bd4 Bb5 f1N Qg4+ Qf4 Ba4 Kd3 e4 Ke2 e5 Qfh2 e6 Nfe3 Nc3+ Kf1 Ne4 b1B Nf6 b2 Ng8 Be4 Bc2 b1R Bb2 Bc5 Bd4 Rb6 Bb1 Nc2 Rh4 Qgh1 Bg1 f2 Rh3 Qe5 Rh4 Nb2 Rh3 Bc8 Rh4 Rb7 Ka6 Bd4 Rh3 Qc5 Rh4 Bd7 Rh3 Rb3 Rb4 Rf8 a8R Rd8 Rab8 Be3 Bg5 Bd4 e7 Be6 e8R B6d5 Be7 Qh2 Ne5 Ba8 Nc6 Qhe5 Rf8 Qh5 Rff3 Be3 Rfg3 Bd4 Bh2 g1R Rg2 Qcd5 Rc4 Ba7 Ra4 Rh1 Bg1 Rb7 Rh4 Qc5 Ra3 Rb4 Rah3 Bd5 Bf8 Na3 Be7 Ke1 Bh2 Rf1 Be4 Nc2 Bg1 Rb5 Bf5 Be4 Rg5 Rb4 Bh7 Rb7 Qf4 Ke2 Qg3 Ra1 Qg4+ Kf1 Rg6 Rb6+
RB2bQ2/qB2b1rq/qB1r4/8/Nk2rBbn/1Bn3Np/5rb1/K2RR1b1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Kc6 a4 Kc5 f5 h5 f6 e5 g5 b5 a5 c3 d3 b3 f7 h3 a6 c2 Kd2 h2 Kc3 b2 a7 b4+ Kb3 h4 Ka2 b3+ Ka3 h3 g6 e3 g7 e4 Nf3 e2 Bh6 e1B Qc1 e3 Ne5 e2 Nc4 Nd7 Ncd2 Rh7 Bg2 Nb6 Bc6 Bg4 Rg1 h1B Bf4 Be7 f8B Qd4 Bg2 Bf2 Bf1 e1R Bh6 Na4 Nf3 Bg2 Qf4 c1Q Rh1 Re4 Rg1 Qcc4 Nc3 b1B Nh4 b2 Nf5 Qa6 Ng3 Rd8 a8R Rd6 Qf6 c6 Bf4 Nh6 g8B Nf5 Bb3 Nh4 B8h6 Ba2 Qf8 Rg7 Re1 b1Q Be5 Qc2 Bhf4 Be3 Rh1 Bg1 Be2 Qe3 Bf3 Qef2 Bf7 Bd5 d4+ Kc4 Bg8 Bf7 d5 Qfa7 Rd1 Qd3 Ka2 c5 Ka1 Kb4 Re1 c4 Rd1 Re6 d6 Be8 d7 Rd6 d8B Qc2 Bb6 Qd3 Nce2 c3 Bb3 c2 Nc3 c1R+ Nb1 Re2 Bb7 Rc4 Nc3 Qh7 Re1 Rce4 Rd1 Rh6 Bb8 Rf2 Re1 Rd6 Rd1 Bh2 Rhe1 Bg1 Rb1 Nb2+ Na4 Nd1 Rc1 Nc3 Rb1 Qg8 Rbd1 Qh7
3b1K2/k1rq4/r1qB1Bb1/RB2B3/2qr3n/R1R1bNp1/5Q2/Bqrnq2N w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Ke5 g5 h4 c5 f4 g3 a4 c3 d4 e3 h5 e2 h6 e1R+ Be3 c2 a5+ Ka7 d5 c1Q a6 b5 d6 g4 h7 b3 f5 b2 f6 g2 d7 b4 Ke6 g3 Kf7 e5 Nc3 b1Q Qg4 b3 Ra4 b2 Qe2 e4 Nd5 Qc4 Qd2 Qbc2 Bf2 b1Q Rh6 e3 Qb4 e2 Ra3 Ne7 Re3 Nbc6 Nf3 g1B Rc3 Ng6 Qb2 Rc1 Bd4 e1Q Be5 Be3 Rh5 Nh4 Rg5 Qg2 Qf2 Be7 Rf5 Rg8 h8B Nb4 Be2 Qc7 d8B Rg4 Ke8 Qd6 f7 Rd4 f8B Nd3 Nf6 Nb2 Ng4 Nd1 Bhg7 B7g5 Bdf6 Qde6+ B8e7 Qd7+ Kf8 Rc2 B7d6 Bb7+ Bd8 Be4 Bd3 Bf6 Rg5 Bg6 Bf1 Qcb3 Bb5 c4 Bh8 Rc8 Bg7 Rc7 Rf5 Bfg5 Bdf6 Ra2 Bh8 Kb6 a7 Ra6 a8R Qb4 Rc8 Ka7 Ra3 c3 Bhg7 c2 Bh8 Rb7 Rcc3 c1R Bd8 Rc4 Bd4+ Rb6 Rf4 Ra4 Qe2 Qc2 Ng1 Nf2 Rd3 Bh5 Ba1 Bg6 Rdc3 Qd5 Nf3 Rba6 Be5 Qcb1 Qb2 Nd1 Nf2 Q5b7 Nh1 Rc7 Qf2 Qbc6 Rd4 Qbc5 Rg4 Rb4 Ra5 Re4 Rca3 Rb4 Rc4 Bf6 Rcc3 Rd4 B8e7 Bfg5 B7f6 Q5d5 Bh8 Bd8 Bhf6 Qdc4
2qq1R1n/BqRn2R1/bb3q1N/3B3k/2rb1KRN/p1q2R2/2rN4/n2b1Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 b4 f5 c4 Kf7 g4 Kg6 e4 a5 g5 d5 e5 f3 b5 f2 c5 f4 e6 f3 b6 a3 e7 a2 e8N h3 b7 d3 Ke3 a4 c6 a3 c7 h2 Ne2 d4+ Ke4 d2 Nbc3 h4 Nf6 d3 Nh5 h3 Ng7 Ra4+ Ke3 Rc4 Ne6 Bc5+ N6d4 Ne7 Qb3 d1B Qb1 Bb6 Qb5 d2 Nb1 Nd7 b8R Ba6 c8R Kh5 Ng1 Ng6 Rc7 Qc8 Bg2 f1Q Rbb7 f2 Bd5 Rh7 Nf3 Nh8 Rg1 h1Q g6 h2 g7 Qe1+ Kf4 f1N g8R Ne3 R8g3 Nc2 Nh4 Rh6 Rd3 Rhc6 Rg4 Qhf1+ Rf3 h1Q Bb2 Qee8 Bc3 Qed8 Bb4 Qd3 Bc5 Qc3 Rb8 Qf1 Ra8 Qb7 Rb8 Qdc8 Rg7 Ba5 Ba7 Bb6 Rg4 Be2 Ra8 d1Q Nd2 Qf2 Rb1 a1B Rb4 Bb2 Rg7 Na1 Rb8 Qdb3 Ra4 Bd1 Ra8 Qa5 Rb8 Rc2 Qf1 Qbc3 Ndf5 Rc5 Re4 Rc4 Nh6 Qfd4 Kg3 Qf6 Reg4 Qe3 Ra8 B2d4 Rb8 Qac3 Ra8 Qee6 Rb8 Qcg8 Rf8 Qd8 Kf4 Qdc8 Rf6 Qgd8 Rf8 Qef6+
1K5R/q2R4/R1bR1b1r/2bQ2qR/B2n1pbq/2B2Nr1/nN3nN1/q1k3b1 w - - 0 1 illegal: No possible last move
BBn2b1R/B4Kr1/nn2r2B/q1r5/R1R2p1r/1qB1q3/r5NN/1Q1bn2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 h4 Kd6 e4 Ke5 b4 f5 d3 g5 b5 a5 h5 c5 b6 f3 Kg3 a3 b7 a4 h6 a2 h7 f4+ Kh2 a3 Qd2 c3 Qd1 f2 Bd2 c4 Bc1 g3+ Kg2 g4 Qe1 c2 Be3 c1N Rh2 c3 Nh3 c2 Ng1 Ne7 Nd2 Qd5 Ba7 Na6 Be2 f1N Bf3 Qb3 b8B+ Ke6 d4 Nd3 e5 Kf5 d5 c1R d6 Rc5 Nc4 Nd2 Rc1 a1R d7 a2 d8B Rb1 e6 a1Q Bb7 Qa5 Ne3+ Kg5 Rc2 Nc4 Rc3 Nb6 Rc4 Ra1 Qb1 Bd7 Rh6 Ba4 Rf6 Nec8 e7 Kh4 e8R Ra3 Be7 Ra1 Bed6 Ra3 Rfe6 Ra1 Ree4 Ra3 Be5 Ra1 Bc3 Ne1+ Kh1 g2+ Kh2 Ra2 Nf3+ Kh5 Red4 g1R+ Ng2 g3+ Kh3 Re2 Nh2 Re6 Ne3 g2 Be4 Rg8 h8B Rh1 Bg7 g1Q Ng2 Qe3+ Bf3+ Kg5 Re4 Kf5 Bh6 Rg7 Kh4 Bb5 Rcd4 Be2 Kh5 Bd1 Ra4 Rf1 Be2 Rf2 Bf3 Ra2 Bbe5 Rb8 Rd8 Rbb7 Beb8 Rh7 Re8 Rbg7 Rec4+ Nc2 Ne1 Be7 Rg8 Bf8 Rh8 Rg4 Bg2 Rb7 Nef3 Rbg7 Bd4 Ke4+ Bde5+ Kd3 Nh4 Ke2 Ba8 Kf2 Ng2 Kg1 Bc6 Ne1 Ba8 Nd5 Bc3 Kh1 Nh4 Rgc7 Ng2 Rh4+ Kg5 Re8 Kf5 Ndb6+ Kg6 Rg7+ Kf6 Rg6+ Kf7 Ree6 Bbe5 Rg3 Beb8 Rg7+
kNB3rQ/2r2N1n/1RNn2q1/q1bBB2p/b2b2Bn/1b3R2/5q1n/Kn4B1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 g4 b5 f4 d5 a4 Kd7 c4 Kc6 Kc2 Kb7 Kb2 e5 a5 b3 c5 d3 f5 h3 f6 d4 f7 h2 g5 e3 g6 d2 g7 e4 Qf3 d1N+ Ka3 b2 Ka2 b4 Qg3 d3 Bd2 b3+ Ka3 e2 Bb4 e1N Qh3 d2 Ne2 e3 Nbc3 b1Q Na2 b2 Nd4 e2 Nc6 Nf6 g8N Qg6 Nh6 Be6 Rb1 Nf2 Qc3 d1B Bh3 N6g4 Rf1 Ne4 Rf3 Nd7 Nb8 Rh7 Qh8 h1Q Bc3 Qf1 Be5 Ba4 Nb4 Nd6 N4c6 Nh2 Bg4 Be7 f8B Ng2 Bfg7 e1B Nf7 Beb3 Bgf6 Nf8 a6+ Kc7 a7 Kb7 Bg5 Qa5 Be3 Bc3 B3d4 Nh4 Bg1 Bc2 Ka2 Bd4 Nd7 Rc8 Ndb8 Qf2 a8B+ Kc7 Rf1 b1N Rb3 Rg7 Rb6 Rg8 Bb7 Nh7 Ba8 Be3 Ka1 Bcb3 Bb7 Qfe1 Rf3 Qf2 Na7 Bf6 Bd5 Bg7 Nac6 Bf8 Ra6 Kb7 Rb6+ Ka8 Nd4+ Nb7 c6 Bd6 c7 Bc5 Ndc6 Nd6 Bc3 Bed4 Bb2 Rce8 c8B Re7 Bc3 Rc7 Bb2 Be3 Be5 Bed4+
3n3b/6pb/B1nR1Br1/q1bn2Nr/k1bqR1K1/4QbN1/r4R2/nB1R1R2 w - - 0 1 illegal: Other
3r1n2/1p2b1nR/N3B3/2r2b1q/3K2B1/2n1B1Qq/bRrN2r1/kbrRB2B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Kc5 h4 d5 c4 g5 a5 f5 h5 b3 a6 Kb4 a7 g3+ Kf3 g2 e5 d3 h6 g4+ Kf2 g3+ Kf3 b2 h7 d4 c5 d2 e6 d3 c6 Be7 c7 Qd7 Ra6 Nf6 Rc6 Ne8 Rc2 Kb3 Rh5 Ka2 Rc5 Ng7 Be2 Ka1 Rc4 Rd8 Nc3 b1B Qc2 d1Q h8B d2 Nd5 Ba2 Qb3 Bb1 Nh3 g1R Rb4 g2 Rh7 Ba2 Kf2 f3 Ke3 f4+ Kd4 f2 Bg4 f1B Qg3 f3 Nf2 Bd3 Ne4 f2 Rb5 Qe2 Rb2 d1N Be3 f1R Nd2 Bg6 Bg5 Rf2 Be3 Bb4 e7 Nc3 e8B Be7 Be6 Bgb1 Bg4 Qf5 Bc6 Nd7 Nb4 Rc1 Na6 g1R Bh1 Rb8 a8R Rgg2 Ra7 Qh5 Ra8 Qh3 Be6 Qeh5 Bg4 Ne8 Bf6 Ng7 Bh4 Re8 Ra7 Nf8 Be6 Bd7 c8B Rd8 Bg4 Bdf5+ Bd7 Re8 Be6 Rbc8 Ra8 Rc5 Rd8 Bg5 Qh2 Re2 Be1 Be7 Qg3 Ref2 Rd5 Rd8 Nf3 Bh4 Ke5 Rc6 Rd1 Rfc2 Nd2 Rc7 Bd4 Be7 Be3 Bd5 Kd4 Rc5 Qb8 Bc4+ Qd6 Bd5 Qg3 Bda2+
1B3rN1/1r2bN2/1k1n2BB/3r1bQ1/K5R1/b1q3B1/1rRnp2b/1rbr1R1B w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e5 h4 d5 a4 Kd7 f4 Kc7 c4 b5 Kc2 g5 Kb3 g3 c5 e3 f5 d3 f6 g4 c6 e2 h5 e1B a5 g2 h6 g3 a6 d2 f7 d4 h7 d3 a7 e4 Ba3 e3 Nc3 e2 Nh3 g1B Ne4 g2 Nf4 Nd7 Nf2 Ngf6 Ng4 Bh4 Rh2 Kb6 c7 Rb8 a8R Ne4 Qc2 d1R Nh5 d2 Ra5 Be3 Nh6 g1B Nf6 Nd6 Bg2 Rb7 Qf5 Ne5 Bh1 Nec4 Qg5 Bf5 c8B Qc7 Rg2 Bh2 Rg4 Be7 Ra2 Rf8 h8B B4g3 Ra1 Bc5 Ra2 Bf4 Nfg8 Qc6 Rc2 Qf3+ Ka2 Qc3 Be5 Bfe3 Bg3 Bf4 Bc1 b3+ Kb1 b4 Ra1 b2 Ka2 b1R Ba3 Re8 f8B Bfe3 Bg7 Rf8 Nf7 Rb3 Bh6 Bf4 Rb1 Rb2+ Ka1 b3 Be6 Rg1 Rf1 Rg2 Bd7 Rf2 Be8 d1R+ Rc1 Rd5 Rc2 Bc1 Bb4 Nd2 Ba5+ Ka7 Bc7 Ba3 Bb8+ Kb6 Nd8 Qf3 Bg6 Qc3 Nf7 Rf4 Bg2 Rb4 Bh1 Rbd4 Qh4 N2c4 Nh8 Rd1 Nf7 Ra2+ Kb1 b2 Qh5 Ne4 Qg5 Ncd6 Rd2 Qb4 Kc2 Qa5 Kb3 Qc3+ Ka4 b1R Rc2 Nd2 Rff4 Rab2 Rf2 Rbb5 Rf1 R5b2
r1bQ1b2/3Nq1NB/rbK1n2R/q1qR3p/2n1b3/B2B1N2/1nr4N/kq1N4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 h5 f5 e5 a5 b5 a6 e3+ Kd3 h3 c3 e4+ Kc2 b3+ Kb2 b4 g5 h2 a7 d3 c4+ Kd4 f6 d5 g6 d2 g7 e2 c5 e1Q c6 e3 f7 e2 c7 Rh6 Na3 Nf6 g8N Nh7 Bh3 Nc6 Nc4 Ng5 Bg2 Na5 Bf1 Ra6 Ra3 Ne6 Ne3 Qe7 Nf6 Qf2 Ra2 e1B Bd3 Qf5 Ra1 Bf2 Nfg4 Qe5 Bh7 Qf5 Ra2 Kd3 Ra3 d4 Nf3 Qc5 Rf1 h1Q Ngh2 Qg1 Ra2 Qg5 Rg1 Qge7 Rg6 Qfe5 Rh6+ Qf5 Qh1 Bg1 Nd1 Kc4 Qg2 d3 Qg3 Bf2 Qd6 Qfd5 Qd8 Bg1 Nf2 d1R Ra4 Re1 Nd1 d2 Ra3 Re2 Ra4 Bd7 c8B Qdg5 Bb7 Bc8 Bbe4 Qgd5 Ka1 b2+ Ka2 b1B+ Kb2 Nb7 Ra5 b3 Bd3+ Kb4 Bdg6 Nd6 Bd3 Rb8 a8N Nc4+ Ka1 Rg2 Nc7 Rba8 Ne8 Bc2 Ng7 b2+ Ka2 Bf2 Be2 Be4 Bd3 Qdg5 Kb1 Bg1 Kc2 Qgf5 Rb5+ Ka3 Kc3 Ka2 Rb7 b1Q Rb5 Qcd5 Ba3 Bb6 Ra5 Ka1 Rc5 Qa2 Kb4 Qde5 Kb5 Qb1+ Nb2 d1N Rd5 Rc2 Kc6 Nc3 Nd1 Na4 Qd6 Qd4 Qd8 Nab2 Ne8 Bg7 f8N Qc3 Nd7 Bf8 Ng7 Qa5 Nd2 Qf2 Ndf3 Qfc5+
bb2N2n/r5p1/1R1r2BK/kqn1NQn1/N1R3bR/B4n2/1nNNbr2/3n4 w - - 0 1 illegal: Other
1B1N2n1/5K1N/Rqr1nnB1/1n2p3/B2rQr2/1b1b4/1Bk3bN/B1b1nr1R w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 c3 b3 h5 e2 f6 e1N+ Ke2 Ke4 a7 d5 f7 g2 h6 d3+ Kf2 b2 Kg3 d2 h7 d4 c4 d3 c5 g4 c6 b4 c7 b3 Nh3 g1N Qc2 d1B Ra6 Bh6 f8B Ngf3 Bb4 Ng5 Kh4 g3 Bc3 Bb7 c8N g2 Ne7 g1R Nc6 Qb6 Nd8 Nd7 Nd2+ Ke3 Qb1 Bg2 Nf3+ d2 Kh5 Ndf6+ Kg6 Rc8 a8B Rc6 Bd3 Rf1 Nh2 Ne6 Kf7 Rf4 Qc2 b1N Ng5 b2 Bg6 Na3 Qa4 b1B B1b2 Nb5 Qe4+ Kf2 Ba1 Bd3 Bcb2 Bb3 Bb7 d1R Bc8 Qe3 Bd7 Ke2 Be8 Kd2 Bd7 Ne7 Be8 Rg8 h8B Qb6 Nh7 Kc2 Bg7 Rf1 Bd7 Bc1 Bf8 Rh8 Be8 Neg8 Bd6 Rd2 Bb8 Rdf2 Nf8 Rh4 Nh7 Rg4 Qe3 Rd4 Qe4 Rf4 Bd7 Rcd6 Bc6 Nbc7 Bb5 Rc6 Ba4 Nb5
Nb1N1bQN/2BK3B/7N/rRRn3r/8/r1p1q2B/b4nnb/1nqk2rN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 e4 Kd6 a4 Kc5 h4 Kd4 a5 g5 h5 c5 h6 b5 a6 f5 d3 f3 Kg3 f2 h7 b3 a7 b2 e5 b4 e6 c3 e7 c2 e8B c4 Bd2 c1Q Bf4 c3 Nh3 b3 Bc7 Ke3 d4 f4+ Kg2 f3+ Kg3 Be6 d5 Nc6 d6 Qe7 d7 Nb4 d8N Nh6 Be5 Nd5 Na3 b1N Bf6 b2 Be2 f1R Ra2 f2 Qb3 Kd2 Bf3 Rg1+ Bg2 Bg8 Nc2 Kd1 Bg6 f1N+ Kf2 g3+ Kf3 Be6 Ke4 g4 Ke5 Nfe3 Ra5 Qc5 Bf1 g2 Rb5 g3 Bg5 Qe7 Bf4 Qe8 Qc4 Qe7 Nd4 Nhg4+ Ke4 Qg5 Nf5 Nf2+ Ke5 Nb6 Qe4 Nd2 Qd3 b1R Be8 Rb3 Nc6 Ra3 Bd7 Ne4 Nd8 Ba2 Qc4 Nb1 Bd3 Rf1 Ke6 g1B Bb8 g2 Nf2+ Ke1 Rh4 Bh2 Nh1 Kd1 Rh5 Rg1 Bc7 Qf4 Nd4 Nf2 Rhc5 Re1 Nf5 Bg3 Be5 g1B Bd6 Ng2+ Be4 Rg8 h8N Qfe3 Nh6 Rg5 Be5 B1h2 Bh7 Rh5 Bc8 Bg7 Kd6 Bf4 Qg8 Nd5 Bh3 Rg1 Kd7 Bf8 Bd6 Rb8 Be5 Rb6 a8N Rba6 Bd6 R6a5 Bb8 Be5 Bd6 Bf6 Bf4 Be5 Bg3 Bb8 Be5 Ne4 Bc7 Nf2
2q1qbb1/1NR1B1NN/k5rQ/q1Rb1B2/1b2nn1p/3n2NK/2p5/1b1r2RN w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 e4 Kc6 g4 Kb6 Kg2 c5 d4 f5 a4 h5 a5+ Ka6 e5 b5 e6 c3 d5 c4 d6 h3+ Kh2 f3 g5 f4 g6 f2 g7 c2 d7 h4 e7 b3 e8R c3 Re1 f3 Qe2 b2 Be3 c1B Bc5 c2 Nc3 b1B Bb4 Nf6 g8N Qe8 d8N Ne4 Nc6 Nd7 Ra2 Ne5 Nd8 Rh6 Nb7 Nd3 Nf6 Be6 Nd1 Rg6 Qe3 Ba3 Nh7 Bg8 Be7 b4 Qh6 b3 Ne2 b2 Rg1 Rd8 Ng3 Bb4 Ra3 Bba2 Rc3 b1B Rc5 Bad5 Bg2 f1Q Nf2 Rdd6 Nfh1 f2 Bf3 Qc8 Bg4 Qe2 Bf5 Nf4 Rc7 Qb5 Re3 f1Q Rec3 Qe1 R3c5 Ka7 a6 Qbe8 Bg4 Kb6 a7 Ka6 a8N Qc3 Bf5 Qa3 Nb6 Qaa4 Nd7 Qa5 Ndf6 Rd7 Nfh5 Rdd6 Rg2 Rd7 Kg1 h2+ Kf1 Rdd6 Ng7 Rd8 Nf2 h1N Rg1 Ne2 Kg2 Rdd6 Ng4 Nhf2 Kh2 Nd3 Nf2 Rd8 Kh3 Nef4+ Kh2 Nb2 Ng4 Bde6 Nf2 Rd1 Nfh1 Nbd3 Qg5 Ne2 Qh6 Bd5 Kh3 Nef4+
R1b1Rrr1/K2krBnp/2b1Rb2/B1Q1R1N1/3q4/p1qN4/2N1q2r/3R1n1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 Kd3 f5 Kc4 d5+ Kb5 f3 g4 f4 e4 a3 c4 d3 b4 a4 e5 h3 e6 f2 e7 f3 c5 d2 c6 a2 c7 d4 Kb6 d3 g5 a3 b5 h2 g6 Nf6 g7 Na6 g8R Kd7 e8R Nh5 Re5 Nc5 Nc3 Ra7 Nd5 Ne6 Ne3 Be7 Qc2 d1Q Nh3 d2 Ng5 Qe2 Qc5 d1B Nc2 Ng3 Re8 Rg8 Bd2 Ng7 Ba5 Bf6 Rb1 a1Q Rb2 Qe1 Bc4 f1R Bf7 f2 Rb4 Qb2 Rbe4 Qbc3 R5e6 Qed2 R4e5 Bf3 Rg1 Ra1 Rd1 Rb7+ Ka6 h1R b6 f1R Nh3 Ra2 Ng5 Rb8+ b7 Bc6 Kb6 Ra8 b8R Ra7 Ra8 Rb7+ Ka6 Rb4+ Ka7 Re4 Nf3 Qdd4 Nfe1 Qe7 Nd3 Ree1 Ncb4 Rah2 Nc2 Ba6 c8N Rf4 Ndb4 Nf1 Nd6 Bc8 Ne4 Ree2 Ng5 Rff2 Re4 Re3 R6e5 Qe6 Nd3 Qg4 Rf4 Qe2 Rh4 Re4 Rh6 Rff4 Rf5 Re6 Re5 Re7 Re3 Be5 Re6 Bf3 Bh5 Rff8 Bf7 Bf6 R3e5 Bc6
1BkB1qR1/3pq3/n1N1qBBr/1K2nB2/b2Rpn2/2r3b1/5Nn1/b2Q2Nn w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 h4 b5 a4 e5 c4 b3 f4 d3+ Ke3 g3 c5 g2 a5 b4 f5 d2 c6 g4 a6 g3 a7 b2 f6 b3 c7 Ba6 c8B Bb5 h5 Na6 h6 Qe7 f7+ Kd8 h7 Nf6 Rh3 Ba4 Qe2 d1N+ Kd2 e3+ Kd3 Bg7 Kc4 Nh5 f8B Nf4 Bb7 Nf2 Be4 Nh1 Nd2 b1Q Bg6 b2 Ne4 Kc8 Nf2 e4 Qd1 e2 Bd2 e1N Ba5 Rb8 a8N Rb3 Bd8 Qa2 Nc7 b1Q Nd5 Qbb2 Rh2 Qbf6 Nb4 Qfd6 Rb1 Ba1 Nc6 Qdf6 Bg7 Qff8 Be5 Re3+ Rb3 Rf3 Bb8 Re3 Ne2 g1B Bh3 g2 Bhf5 Rg3 Rh5 Bh2 Rg5 g1N Rg4 Ngf3 Ng1 Neg2 Rg5 Qb2 Rd3 Qbe5 Rd4 Rh3 Rg4 Bg3 Rg5 Rh6 Rg4 Rg8 h8B Q5d6 Bf6 Rgh8 Rd3 Qde6+ Rd5 Rh3 Rg5 R8h6 Rg4 Bc2 Kb5 Ne5 Rd4 Bb3 Bh5 Bc2 Rg8 Bb3 Bhg6 Ba4+ Ka5 Bh4 Kb6 Rc3 Ka5 Bg3 Kb6 Bc2 Kb5 Ba4+
6r1/B1B5/KNB1q2q/b1B2R2/1q1QB1b1/p1nR1b2/1nrnp2q/R2rkN2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 f4 Kf6 b4 Kf5 c4 h5 b5 d5 c5 e5 b6 a5 c6 d3 Kc3 a3 c7 e3 g4+ Ke4 f5 d2 g5 a2 f6 d4+ Kc4 d3 Kb5 h3 f7 h2 g6 e2 b7 Ke3 g7 Kf2 Ba3 e1Q Qc1 d1N Nd2 a4 Bc5+ Qd4 Bh3 a3 Ba7 e4 Ngf3 h4 Ng5 e3 Qc5 Nd7 b8B Ne5 Qd6 Nf6 g8B Nc4 Bf5 h3 Nh7 Ndb2 Nf3 d2 Bd3 d1B Nhg5 Nd2 Qb4 Bg4 c8R Nfe4 Ka6 Nc3 Ne5 Bdf3 Rc5 e2 Nd7 Qd6+ Nb6 Qe6 Bc7 Rc8 Bgh7 Rg8 Bde4 Bg7 Rg1 h1Q f8B h2 Rg3 Qb1 Bhg6 Ke1 Bc6 Qg2 Bc2 h1Q Rf5 Qhh6 Bc5 Qgh2 Ne4 Bf6 Rh3 Be7 Ng3 Bd8 Bd1 Qbe4 Nf1 Qef4 Qa4 Qb4 Bc2+ Ncd1 Rc1 a1R B2e4 Rb1 Qb5 Ra1 Qd3 Rb1 Qd4 Ra1 Rc2 Nc3 Rg3 Rd1 Rc1 Bh1 Rd3 Bhf3 Bf4 Rc7 Ra1 Rc8 Nd7 Bb6 Bc7 Ba5 Nb6 Qhg6 Bcb8 Qgh6 Bf8 Qhd6 Be8 Ncb1 Ba4 Rc3 Bc7 Rc2 Bac6 Qdh2 Bc5 Nc3
4rKnR/1qb1B2r/b3BNQp/2B4p/2q1Bqnk/3b1BN1/6nr/N2R2q1 w - - 0 1 illegal: No possible last move, all moves rejected
rN3r1b/1rn2kB1/N1R2r2/2Np1R2/K1Bbn2R/1r5N/1pqN1bb1/4Q2b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 e4 g5 c4 f5 Kc2 f3 Kb3 f4 a4 g3 h4 d3 h5 d2 e5 f2 c5 g4 e6 f3 a5 g2 e7 g3 a6 Bb7 c6 Qc7 a7 Nf6 h6 Kf7 e8R Ne4 h7 Na6 Rh2 Bg7 Rh5 Rf8 Ree5 Bh8 Qe1 d1R Nh3 g1B Bh6 g2 Rh4 d6 Bd3 f1R Nd2 Bf2 Rc1 g1B Bg7 Qc8 Rd5 Nc7 Bc4 Bd4 Rc2 f2 Rc3 Ra1 Rc1 Rb8 a8N Ra2 Nb6 Ra5 Nd7 Raa8 Nc5 Qf5 Na6 Qc8 Ka2 b3+ Ka3 b4+ Ka4 b2 Rc2 b1R Rf5+ Ke8 Rc3 Rb3 Rc1 Rg3 Rc3 b3 Rc2 b2 Rc3 Nd5 c7 Rf6 Rc1 Rb3 Rc2 Kf7 Rc3 Qd8 c8N Qc7 Nb6 Qc5 Nd7 Bc6+ Bb5 Rb7 Nb8 Nc7 Rc1 Qc3 Rc2 Bd5 Be2 Qd3 Rc6 Qc2 Bb5 Ng3 Be2 Bh1 Bc4+ d5 Nf4 Qc3 Nd3 Qc2 Nc5 Ne4 Rh6 Ke8 Rh4 Rf8 Re5+ Kf7 Bf6 Bg7 h8N+ Kg8 Ng6 Bh8 Nf4 Kf7 Qa1 Rc1 Bg7 f1B Reh5 Bfg2 Nh3 Rf1 Qe1 Rf6 Rf5 Bgf2
B5nk/2b1bKN1/2pBnB2/1R2B2n/2nQ1N1b/2n1R3/1p2NBb1/1rqr1b2 w - - 0 1 legal: proof: e4 d5 c4 dxc4 g4 a5 b4 axb4 g5 f5 g6 fxe4 Qe2 hxg6 Qf3 g5 Qd1 g4 Ke2 Kf7 Ke3 b5 Kf4 e5+ Kg3 g5 h4 Kg7 f4 e3 d4 b3 a4 c3 d5 b4 a5 e4 f5 b2 d6 e2 d7 e1N a6 c6 a7 c2 h5 e3 Ra5 b3 Rh4 e2 Rc5 Nd3 Bg2 e1B+ Kh2 g3+ Kh3 Na6 Kg4 Rb8 a8N Be7 Bf4 c1N Rh3 Nc7 Bd6 Nf4 Ne2 Ncd3 Nbc3 b1B Nd5 Ba6 Bf1 g2 Rb5 g1N Re3 Nce6 Nac7 Nb2 f6+ Kh7 h6 Nc4 f7 Be4 f8B Bg2 Kf5 g4 Be5 g3 Qd4 Nh5 Ne8 Ba5 Bd6 Bc7 Ng7 Qe8 d8B b2 Nec3 Ne2 Nf4 Bh4 Bf6 Rd8 Bc5 Qe7 Bb6 Qc5+ Be5 Rd5 Bd6 Be7 Qe4 Rd1 Qd4 Bd5 Ba7 g2 Bf6 g1B Bb6 Nc1 Nce2 Bf2 Bh3 Bg2+ Bfe5 Ngf6 Ba7 Kg8 Kg6 Bh4 Bf5 Na2 h7+ Kf8 Bh3 Ng8 Bf6 Nc3 Bf5 Nd8 Bc8 Ne6 Bb7 Qd5 Qe5 Qd2 Ba8 Rb1 Qd4 Qc1 Bfe5 Ngf6 Kh6 Kf7 Bac5 Rd8 h8B Kg8 Kg6 Ng4 Nf5 Nh6 Bhf6 Rd7 Ng7 Kh8 Bb4 Ng8 Kf7 Nd1 Be1 Nc3 Bf2 Rd8 Bb4 Rd7 Qb6 Rd4 Bbd6 Rd1 Qd4 Bg5 Ng3 Nb6 Rb4 Baf1 Nge2 Bh4 Rb5 Nc4
1bB1r1n1/k1qb3K/3B2rR/3n1Q2/NnBR1p1n/2NR1bp1/5B1r/2b1Bb2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kc6 d4 Kb6 e4 f5 a4 c5 e5 g5 d5 b3 d6 c3 d7 b2 e6 c2 h5 g3+ Kf3 c4 h6 c3 a5+ Ka7 a6 b5 h7 g2 e7 b4 e8R b3 Qd5 Qc7 d8B Nc6 Re4 Bd7 Qe6 Bd6 Rd4 Nb4 Be3 c1R Ne2 c2 Nbc3 b1B Na4 b2 Be7 Re8 Nec3 Be5 Bb5 Rg1 Bf2 c1B Bd6 Bd3 Be1 b1N Rh6 Bc2 Bc4 Bd1+ Ne2 Nc3 Ra3 Ncd5 Rad3 Bc2 Nec3 g4+ Kf2 f3 Qf6 f4 Qf5 Ka8 a7 Kb7 a8B+ Ka7 Bb7 Bd1 Be7 Qc8 Bf8 Bb8 Bd6 Qc7 Bba6 Rh1 Bc8 g1N Kf1 f2 Kg2 f1B+ Kf2 Bfe2 Kg2 g3 Bf2 Nf3 Be1 Nh2 Kh3 Nf3+ Kg4 Nh4+ Kg5 Bf1 Bf2 Nf3+ Kg6 Nh4+ Kg7 Bf3 Be1 Ngf6 Bf2 Rhf8 h8B Ng8 Kh7 Rh2 Bf6 Qc5 Bd8 Rf6 Ba5 Qc7 Na2 Na6 Bae1 Nab4 N2c3 Rg6
1B3nNb/r3QB2/nN1nB2K/q1n1B1Bp/1RN1b1Rn/6qb/p1k2r2/4n3 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 Kc4 b5 e5 c3 d5 f5 h5 f6 a5 b6 e3 Kf3+ e2 b7 e4+ Kf4 e3 Kg5 a3 Qd2 Kb3 c4 e1Q c5 h3 c6 h2 c7 a2 Ba3 e2 Qf4 a4 Bb4 d3 Qg3 a3 Qg2 d2 Qe4 d1N Qf5 d4 Nf3 d3 Bc3 d2 Qg6 Ra7 Qg7 Ne3 Qe7 d1N f7 Nf5 Rg1 h1B Ne5 Kc2 Nd7 Nd6 Nd2 Ne3 Be5 Nef5 Nb6 Qg3 Rb1 e1N Bc4 a1N Rb4 Bg7 f8B a2 Bf7 Nh4 Ndc4 Na6 b8B Bd7 c8B Be4 Nb2 Nb3 N2c4 Bdf5 Bce6 Nf6 Rg2+ Kd3 Rg1 Nbc5 Rg2 Rg8 Rg1 Bh8+ Kh6 Kc2 g5 Bg4 g6 Nfd7 g7 Bh3 Rg2+ Qf2 Rg4 Qg3 Qf6 Qc7 Be7 Rf8 g8N Qd8 Qg7 Qc7 Bg5 Qd8 Bg6 Rf2 Qe7 Nf8 Bgf7 Qc7 Na4 Qa5 Nab6 Rf4 Nd2 Rf1 Ndc4 Rf2
q2RR2q/kB1Qb2b/1N1R1nr1/b2Rb1p1/R2NNBb1/r1qp4/2bK4/1n6 w - - 0 1 illegal: No possible last move
3n2N1/nqB5/N2Bp1k1/Br1RB1qn/3Qq1n1/1r2pK2/b2bn1BN/nR6 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 h4 c5 d4 b5 a4 g5 f4 c3 d5 e3 f5 g3 d6 g2 a5 c2 f6 g4 d7 c4 a6 g3 a7 b3 h5 c3 h6 b2 h7 b4 Rh6 b3 Qe1 Qb6 d8B Be6 Bc7 Qb7 Bd6 Nc6 Ra6 Nd8 Nf3 g1N+ Kd3 g2 Qf2 Rb8 a8N Nh3 Ke2 g1Q Rb6 Nf4+ Ke1 Nh5 Ke2 Qg5 Nbd2 b1N Qg2 b2 Nh2 Na3 Nc7 b1Q Na6 Nb5 Qg4 Ba2 Bc7 e6 Qd4 Bb4 Ne4 Na7 Bd2 c1N+ Kf3 c2 Bg2 Nb3 Rb5 c1N Rd5 Ne2 Bc3 Bf8 B3a5 Bb4 Rg6 Na1 Rg7+ Kf8 f7 Bd2 Nf6 Nh6 Ng8 Ng4 Rg6 Qd3 Rf6 Kg7 Rf5+ Kg6 f8B Qc6 Bfd6 Rb3 Re5 Qd7 Rb5 Qc6+ Red5 Qb7 Rb6 Ra3 Rb1 Rb3 Nf6 Re8 h8B Re7 Ng8 Rd7 Bf8 Rd6 Bf6 Rdb6 Bfe5 R6b5 Bfd6 Qe4+
1B2r2B/3Nr3/2q1qr1n/RbnB2NQ/R2b1Bnp/1B3n2/K1Rpn3/6rk w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 g4 d5 b4 a5 Kb2 h5 g5 e3 f4+ Ke4 f5 e5 f6 d3 c5 e2 g6 e1R b5 a3+ Ka2 d4 b6 a4 c6 h3 g7 h4 b7 d2 c7 h2 f7 d3 Bb2 Nh6 g8R Nd7 b8B Bg7 f8B Qe7 Qh5 d1N Qe2+ Ne3 Bh3 d2 Bd4 Ba6 c8B Bb5 Be6 Ra6 Nh3 Nc5 Qc4 Kf3 Bd5+ e4 Bde5 Kg2 Bbc7 Rf6 Qb4 Qe6 Qc4 Neg4 Rf1 h1N Nc3 Ng3 Ng5 Ne2 Rf4 Kh1 Bfd6 Rg1 Rd8 Re8 Bb8 Bh8 Qd3 Re7 Bb3 e3 Nd5 Re8 Rc1 Re1 Qh7 Bg7 Ka1 a2 Bb7 Re7 Kb2 a1R Rc2 Rad1 Rf8 a3+ Ka2 Rg1 Rf5 Rde1 Nb6+ Ne4 Rf3 Rff7 Qg6 N2g3 Rb2 Re8 B7d5 e2 Bc2 Ref1 Nd7 e1N Kb3 a2 Qh5 Rfe7 R8f4 a1Q Rc3 Qa6 Ra2 Qf6 Ra5 Qe6 Ka2 Qc6 Bcb3 Ne2 Rc2 Rf3 Bdc7 Nc5 Re4 Rf4 Rea4+ Nf3 Bcd6 Rff7 Bf4 Ba1 Bde5 Bd4 Bh8 Rf6
3br1N1/7K/N2k4/1b1p1BNR/1b1bqr2/pnQ1N1Bn/1n1BR1b1/5Nnq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 a5 Ke4 f5+ Ke5 d5 e4 g5 h4 f3 c4 f4 b4 d3 b5 g3 c5 a3 h5 a2 b6 g4 c6 g2 b7 d2 h6 f2 h7 f3 c7 g3 Bb2 a4 Rh5 a3 Bc3 Qe8 Qc2 d1N Nd2 Bd7 Bd3 f1Q Nh3 g1B Ng5 Nb2 Re1 a1B Re2 Na6 b8N Bb5 Kf5 f2 e5 g2 e6 Nc5 Na6 Kd6 e7 Nb3 Be4 Qe1 Nf1 Nf6 Bd2 Ng4 Qc3 Bh2 Bc2 g1N Bb1 Rg8 h8B Rg7 Bc2 Rf7+ Kg6 Rf4+ Kh7 Bg3 Bf5 Bh4 Bd4 Qb1 B4e3 Qe4 Be1 Qh1 B3d2 Rc8 Nh2 f1B Bg3 Bg2 Nf1 Nc4 Bg6 Rb8 Bf5 Nf2 c8N+ Kc6 Be4 Nfh3 Nb6 Kd6 Bf5 Nb2 Nc4+ Kc6 Nce3+ Kd6 Kg8 Qg6+ Kh8 Qe6 Kh7 Re8 Nc2 Qe4 Nce3 Nd1 Qc8 Bd4 Qc4 Nb2 Qc3 Rd8 e8N+ Ke7 Nf6 Kd6 Ne6 Re8 Ng8 Bd8 Ng5 Ke5 Nh2 Bb4 Nhf1 Kd6
2q1R1r1/Bn1NKnn1/RB1b4/r2p3R/1p1Q1rq1/2BN1B1r/2n1b3/1kB4r w - - 0 1 illegal: No proof kernel
1N2R1br/4qbk1/1bp3r1/p2BqKNR/3Br1NB/2N2n2/3Nb1rn/Q5b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 Kf7 g4 c6 e4 c3 b4 f3 d4 f4 g5 f2 d5 f3 d6 c2 d7 a3 g6+ Kg7 b5 h3 b6 h4 b7 h2 Ne2 h3 Nec3 a2 Ba6 f1B Qd3 f2 Ba3 c1B Qd5 Bc4 Bb2 f1B Nb5 Bfe2 Kf5+ Nf6 e5 Ng4 Nd2 Qe7 Qd4 Bf7 Nc3 Rg8 Re1 h1R Bc4 h2 Bd5 Rg1 Rb1 h1R e6+ Nf6 d8B a1Q Qe5 Nd7 b8N Rg2 Qd4 Rhh8 Qg1 Qea3 e7 Ng4 Qh1 Nh2 e8N+ Kh6 g7 Bc5 Nc7 Bb6 Be7 Ne5+ Ne6 Nf3 Bh4 Qe7 Qf1 Bca6 Ng5 Bac4 Qg1 Re8 g8N+ Kg7 Nf6 Rh6 Ng4 Rg6 Ba3 Bb2 Bc5 Ba3 Bcf2 Bac5 Rb5 Rh8 Na6 Rae8 Nb8 Bf1 Re5 Bfe2 Bd4 Qb2 Qa1 Bg8 Be4 Bcf7 Bd5 Bd6 Re4+ Be5 Bc5 Bd4 Re5 Bf2 Bd4 Bg1 Be4 Qb1 Nf1 Qe1 Nh3 Bd1 Kf4 Qb7 Nd2 Bh7 Rh5+ Re5 Ng5 Bhg8 Rd5 Qc7 Rd8 Qe7 Re8 Qe2 Bd5 Qb5 Ba2 Be2 Bb3 Qd5 Bc4 Qde6 Bd5 Q6d6 Bc5 Re4+ Kf5 Qdc7 Bd4+ Qce5+
N1R4Q/1b1q4/Bp2k1q1/K3BRnb/1r3brp/R4NB1/bnq2q1B/1q2B3 w - - 0 1 illegal: No possible last move, all moves rejected
k1b1qNn1/rR3Bb1/Qr6/2B5/2bBBr1q/1b1qBK2/q1Npn1p1/1R3R2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 f4 e5 c4 d5 h4 Kd7 a4 Kc6 f5 b5 a5 Kb7 h5 g3 c5 e3 f6 g2 h6 b3 h7 e4 f7 g4 Ra3 b2 Qc2 b4 Qc3 b3 Rh2 d3+ Kd1 g3 Be2 d4 Qc2 d2 Bc4 Ra7 Ke2 Bg7 f8B Nc6 a6+ Ka8 Nh3 g1R Ra1 g2 Na3 b1Q Qc3 b2 Rh1 Qa2 Ng5 b1B Ne6 Rf1 Rg1 Rf4 Nc2 Rg4 Qd3 Qd5 Rf1 d1B+ Ke1 e2 Kf2 Qd8 Be3 Qe8 Qa3 d3 Bd6 d2 Nf8 Qg6 Bf7 Nd4 Be7 Qd6 c6 Qg6 c7 e1Q+ Kg1 Qh4 Bc5 Be2 Qa4 Bc4 Qa5 Rb7 a7 Rb6 Qa6 Qf5 Nb4 Bc2 Rab1 B2b3 Nc2 Qe7 Kh2 Qe8 Kg1 Qfd7 Kf2 Qdd8 Rfe1 Ne2 Rf1 Bb7 c8B Qd3 Bf5 Bc8 Bh6 e3+ Kf3 Ng3 Bg5 e2+ Bge3 e1Q Be4+ Rc6 Ra1 Ne2 Rb1 Ba4 Rb7 Qh4 Rfb1 Rb6 Rf1 Nf6 Rb1 Rg8 h8B Bab3 Rf1 Bh6 Rb1 R8g7 Rf1 Rh7 Rb1 Ng8 Bhd4 Rhg7 Rf1 R7g6 Bfd5 Qa3 Rd7+ Rgc6 Bf7 Bg7 Rc7 Rb7 Qa5 Qb2 Re7 Rd7 Qa3 Kb7 a8R Rc7 Ra4 Kb8 Qa1 Ra7 Rb7+ Ka8 Ra2 Qb1 Rb2 Rb6 Qa6 Qa2 Rbb1 Rf4+
1RBbN3/3RNR2/qbB5/n1R1r1Bk/q1bK4/qR1n2q1/p1p5/r1Qr2r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 f5 e4 Kf7 g4 Kg6 b4 a5 d4 h5 d5 c5 b5 c3 e5 a3 e6 a2 b6 c4 g5 c2 e7 h3 e8R c3 b7 h2 d6 a4 d7 a3 Re5 f3 Ke3 f4+ Ke4 f2 Kd5 h4 Re1 h3 Re6+ Nf6+ Kc4 f3 Bf4 c1B Bd2 c2 Re4 Qc7+ Kd4 Nc6+ Kc3 Nh5 d8R Nf4 b8R Na5+ Rc4 Bc5 Rd6+ Kh5 g6 Be6 g7 Re8 g8B Nd3 Ne2 Bb6 Bg2 f1Q Bg5 f2 Rc5 Bc4 Bc6 Re5 Be6 Qd7 Rd4 Qg2 Nd2 f1Q Ne4 Qg3 Rb1 a1Q+ Rb2 Bd8 Nd6 Be3 Qc1 Qf8 Rd1 h1R Rf1 h2 Rf7 Rg1 Ne8 h1R Bh3 Qc8 Rdd7 Qa6 Nd4 Rd1 Nf5 Rhg1 Ne7 Qa2 Rcb5 Beb6 Rc5 Qb3+ Kd4 Qa4 Rb3 a2 Qf4 Ra1 Qc1 Ra7 Rd5 Rd7 Bf5 Rd6 Bc8 Rf6 Ng6 Rff1 Rdd7 Bbc7 Rcb5 Qfa3 Ne7 Rd1 Rc5 Bb6
b1r1nR2/8/QrkB1NqB/r1pNr3/6qn/n5qB/2BRpR2/2B1b1qK w - - 0 1 illegal: No possible last move, all moves rejected
R3qB2/4b2b/4p1n1/1BnB1rk1/1b2nbq1/N1B1n2R/R3prB1/r1N3KQ w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 Kf6 c4 b5 f4 g5 Kf2 d5 h5 e3+ Kg2 d3 f5 d2 a5 b3 a6 d4 h6 g3 a7 d3 h7 b2 c5 g4 c6 b4 c7 b3 Ra3 Qe8 Ne2 Nd7 Kg1 g2 Nd4 Kg5 Qf3 d1Q f6 d2 Kh2 g1B+ Kg2 g3 Kh3 g2 f7 Bh2 Bb5 g1B Kg2 Bf4 Nc3 b1R Qf2 Ra1 Nb1 b2 Nc6 Kg6 Nd4 Qg4+ Qg3 d1N Nb3 e6 Rh3 Ba6 c8B Ne7 Ba4 Bd3 Bd2 Bf2 Bc6 Nc5 Bb5 Be1 Nc1 Rg8 Kh2 Kg5 Bb7 Rg7 Bg2 Rd8 h8B Bh7 Ra6 Rg6 Bg7 Rf6 a8B Rf5 Ra2 Ng6 Na3 b1N Baf3 Rd4 Bd5 Nbc3 Kh1 Rd3 Qh2 e2 Kg1 N3e4 Qh1 Rf3 Bb4 Rf2 Ba5 Be7 f8R Qf7 Ra8 Qe8 Bf8 Ne3 Bb4 Bc3 Ba5 Bb2 Be1 Bc3 Bd2 Ba5 Bc3 Bb4
K3q3/n1k5/pR3b2/q4r2/1n1N2Bn/2BRBrNb/b1BBQ1p1/1br3Rr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 d5+ Kb5 Kd7 b4 g3 h4 d3 c4 g2 e4 a3 c5 f3 e5 g4 c6+ Kc7 h5 d4 h6 f2 e6 a2 e7 g3 e8B a6+ Ka5 d2 h7 d3 b5 f4 Bg6 f3 Rh4 Be6 Ba3 Nf6 Qe2 d1R Bb4 d2 Na3 Nd5 Rh3 Be7 Nc2 Rc1 Nd4 d1B Bc2 Bf6 Bd2 Qe8 Be3 Rf8 h8B Nb4 Bg7 Bc4 Bgh6 Ra7 Bd2 Rh8 Bhe3 Rh5 Rb1 Rf5 Rb3 Be6 Rh6 a1Q+ Ra3 Kd6 Kb6 Ba2 c7 N8c6 c8R Rh7 Rd3 Na7 Ra8 Rh8 Kb7 Bb1 b6 Qa5 Rg6 Rh1 Rb8 Kd7 Ka8 Ba2 b7 Kc7 Nh3 g1N Nf4 Bb1 Bg2 f1B Bh3 f2 Nh5 Nf3 Bg4 Bh3 Bc3 f1R Bed2 Qee5 Rbg8 Qe8+ b8B+ Kd8 Bbf4 Nh4 R8g7 Rf3 Bfe3 Kc8 Rb7 g2 Ng3 Kd8 Rb6 Kc8 Rh6 Kc7+ Rb8 Ba2 Nc6 Be5 Rg6 Nd5 Bb3 Bc2 Nd4 Rcf1 Rd6 Bf6 Ba4 Nc8 Rb1 Nb4 Rb6 Rfg1 Rf1 Bcb1 Bc2 Na7+ Rb8 Qeb5 Rb6 Qe5 Rf2 Re1 Rf1 Rc1 Rg1 Qe8+
R2BRq1r/bk4B1/pB3p1B/3b2nN/K1Nrn2N/1nqrQB2/1b6/2r1n3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 Kd7 Kd2 Kc6 Kc3 g5 b4 a3 e4 f6 h4 a6 e5 a2 e6 f3 h5 g3 e7 g2 e8N g4 b5+ Kb7 b6 c5 h6 g3 h7 f2 d5 Nh6 d6 Be6 d7 Bd5 Rh5 Nf7 Qd4 Ng5 Be2 f1R Bg4 Rf3+ Kc2 c3 Bh3 c4 Nd2 Ba3 Qe3 Bb2 Ng7 Qf8 d8B Nd7 Bg4 Nc5 Rh6 Rf4 Ngf3 g1N Nh4 g2 Bf3 Rd4 Nh5 Nce4 Rg6 Rc8 Rg8 Rc7 Rb1 Rd7 Ra1 Ba3 Rb1 a1Q Rb5 Bb2 Rc5 Nf7 Rc8 Nfg5 Ra8 Qaa3 Rg7 Rd3 Re7 Qa5 Re8 Qab4 Kb1 c2+ Ka2 c3+ Nc4 Qbc5 Bd2 c1R Kb3 c2+ Ka4 Qd4 Qf2 Qc3 Qe3 Rg8 h8B Rd6 Be2 N1f3 Bg7 g1B Bd1 Ne1 Bf3 Kc6 b7 Rh8 b8B Kb7 Bbc7 Rd7 Qe2 Ba7 Bb6 Bg8 Qf2 R7d4 Qg3 Bd5 Qh3 Rd1 Qg3 c1N Be3 Nb3 Bf4 Ne6 Bfh6 N6g5 Qf2 Rb1 Qe3 Rc1
1R1qqk2/R4p1K/b1b2B2/2N1Bq1B/1QR1B3/b1rn2r1/p1q1r1nr/N6B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 d5 e4 a5 g4 h5 b4 h3 c4 a3 b5 h4 c5 d3 g5 d4 e5 a4 e6 h2 b6 a2 b7 f3 e7 h3 g6 a3 c6 f2 c7 Na6 b8B Nb4 g7 Nh6 g8B Ng4 Bg2 f1Q Qe1 Ne3 Bb2 Qf5 Bh7 Rg8 Ne2 Rg3 Nec3 Ba6 c8B Qdd7 Rg1 h1B Na4 h2 Be5 Rb8 Bgb7 Bc6 Nc5 h1R Bg6 Ra8 Bh5 Ng2 Rf1 Ra7 Rf4 Rh2 Ba8 Rc7 Bcb7 Bcb5 Be4 Bc6 Nb3 Qd8 Nc3 Qdc8 Na4 Qb8 Rb1 a1R Nac5 Ra2 Na1 Qbc8 Rc1 Qd8 Rc4 Rc8 Kd1 d2 Ke2 d1Q+ Kf2 d3 Rf3 Nc2 Qb4 d2 Bf6 Qdd7 Bbe5 Nce1 Bb7 Qc2 Ba8 Nh4+ Ke3 d1Q Bb7 Rb2 Ba8 a2 Bb7 Qfe6 Kf4 Q1d3 Re3 Qd8 Bh1 Qde2 Ra3 Qed5 Be4 Nhg2+ Kf5 Nd3 Ra5 Bab5 Ra7 Ba6 Ba8 Rf3+ Kg5 Rc7 Bg7 Rg3+ Kh6 Qe6+ Kh7 Qf5+ Kh8 Rb1 Bgf6 Re1 Bb7 Qe3 Ba8 Re2 Na4 Kd7 e8R Bd6 Rg8 Bf8 Nc5+ Ke8 Rg6 Bd6 Kh7 Kf8 Bb7 Qfd7 Rg5 Qf4 Rf5 Q7e8 Ba8 Qg4 Rf1 Qgc8 Rb1 Qf5+ Kh8 Rb7 Qc3 Rh1 Na4 Ngf4 Bf3 Rhh2 Bh1 Ba3 Nc5 Bd7 Qd2 Rb5 Bae4 Rb3 Qa5 Rc3 Rb8 Bc6 Qb4 Qfd7 Kh7 Ng2 Qb3 Qde6 Qb4 Qf5+
5NnB/2n1pbb1/B2nn2k/1B4rq/1R1BR3/r1qQpN2/b1bBK3/N5r1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 Kg6 f4 b5 c4 d5 c5 e3 a5 g3 c6 g2 a6 d3 c7 d2+ Ke2 b3 f5+ Kh6 h5 g5 a7 d4 f6 g4 f7 b4 Ra2 g3 Rc2 b2 Rc3 b3 Nh3 g1R Rc2 g2 Nc3 b1B Ng5 b2 Rh4 Bg7 f8B Be6 c8N Qa5 Nf3 Bba2 Ne4 b1B Rb2 Qc3 Nc5 Na6 Nb3 Nc7 Nb6 Bc2 Na1 Bf7 Rb4 Rh7 Re4 Rh8 Qe1 d1N Nd7 Nb2 Qd2 Nc4 Qd3 Nd6 Bd2 Rh1 Ke1 g1N Be2 Nh3+ Bf1 Ng5 Ke2 Rc8 a8B Rg1 Bc6 Ra8 Bb5 Ra3 Ba6 Nge6 Bb5 Kh7 h6 Kg6 h7 Kh6 Nc5 Nf6 Ba6 Rg8 h8B Rg5 Nd7 Rg1 Qb5 d3+ Ke1 Kg6 Nh2 Bh6 Bfg7 Nfd5 Bd4 Nf6 Qc4 Kh5 Nf8 R8g5 Qb5 Ng8 Qc4 Qb2 B2c3 Bg7 Qb5 Kh6 Qc4 Bcb1 Kd1 d2 Qb3 R1g4 Bfb5 Rg3 Qc2 R3g4 Qd3 Bc2+ Ke2 Rg2+ Kf1 d1Q+ Be1 Qg4 Nf3 Qh5 Bd2 Rg1+ Ke2 Qc3
6q1/r2R1BB1/3bK2R/bprN1b1R/N1pR3n/1R4bQ/n3rn1p/2k2bB1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 a4 c5 g5 b5 d3 h5 f3 e3 g6 h3 a5 e5+ Kg3 c3 f4 e4 a6 e2 g7 c2 a7 e3 f5 e1B+ Kf4 b3 f6 b2 f7 h2 Qf3 e2 Ra3 h4 Qg4 h3 Nc3 b1B Na4 Ne7 g8R Nf5 Rb3 Nc6 Rg6 Ba5 Rh6 e1B Qg3 Be7 f8B Nb4 Bd2 c1R Bg7+ Bf6 Be2 Re8 Bh5 Re2 Bf7 Qg8 Kg4 Be6 Qh4 Bg3 Be3+ Kd5 d4 Kc4 d5 Be7 d6 Be4 d7 Na2 d8R Bed6 Qh5 Nh4+ Qf5 Rc3 Rd7 Kd3 Kg5 Kc2 Kf6 Bd5 Qh7 Bb7 Ke6 Bd3 Rh5 Bbe4 Bed4 Kc1 Bf2 Rb8 a8R Rb7 Rad8 Ra7 Qf5 Rd2 Qf3 Bf1 Qg4 Rcc2 Rh6 c4 Bb6 Rd5 Ne2+ Kd1 Qh5 Rc5 Nf4+ Re2 Nd5 Kc1 Qg4 Rc6 Bf2 Rc5 Bg1 Bdf4 Bf8 Ng6 Ne3 Bfc7 Bf2 Bce5 Rg1 h1N Rd4 h2 Qh3 Bd6 Rd7 Nh4 Bg7 Bgf4 Rg5 Bfe5 Nd5 Bg3 Bg1 Nf2 Rgh5 Bf5+
QK5B/5R1r/2R1N1rq/B2Bp1rp/BR1r1r2/4kn1N/2pnBb2/b4b1q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 a4 b5 f3 c5 d3 h5 g5 b3 a5 b2 a6 b4 a7 b3 g6 h3 g7 e3 Nc3 b1R Ra5 b2 Ne4 h2 Qa4 e2 Qa1 e1B Be2 c3 Ng5 c2 Ra4+ c4 N1h3 Qb6 Rb4 Nf6 g8B Ba6 Bd5 Nc6 Rf1 Re8 a8B Ne5 Bac6 h1Q Ba4 Bf2 Qa2 Ne4 Ne6+ Kc3 d4 Rd8 Kf5 Bg7 f4 Nf3 Rg1 Rh6 Rg6 Rh7 Be3 c1R Rf6 Nh4+ Ke5 Rg1 f5 Rg6 Bh6 Bh8 Bg7 Kd2 Rf7 c3 f6 c2 Nf8 Rc8 Rb5 Rg2 Ba8 Bb7 Qd5 e6 Rc7 Rd1 f7 b1R Qc6 Rg4 d5 Nf5 d6 Rf4 d7 Nd4 d8B Ke3 Rb4 Rd3 Bgf6 Nd2 Kd6 Rg1 Be5 Rb8 Rc8 Qa6 Ba5 Rg5 Kc7 Bg7 Qe8 Bg2 Bd5 Rb6 Qc6 N4f3 Qa8 Rc6+ Kb8 Bf1 Bb2 Bh6 Bh8 Bg7 Rc7 Ba1 Rc8 e5 Rc7 Rch6 Rc8 Qg6 Rc6 Qg7 Ne6 Rhg6 f8R Rdd4 Rf7 Qh6
2Rq1rkn/r1R4p/bp5R/KB2qBp1/2q1N2B/1B1q2B1/2NQ2n1/b2b2q1 w - - 0 1 illegal: No possible last move, all moves rejected
3n3B/2N1Brpn/4Rbr1/B1nb3k/BrQ5/p1p1R2N/KqNB3r/1r4q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 b4 a5 e4 f5 h4 Kf7 d4 Kg6 Kd2 c5 Kc3 f3 Kb2 f2 d5 g3 d6 c3+ Ka3 c4 d7 f4 e5 c2 e6 c3 e7 f3 e8N g2 Nd2 Bb7 Nd6 Kh5 b5 Be7 b6 Bd5 b7 Nc6 b8B Qb6 d8B Nf6 Bbc7 Rb8 Rh3 Nh7 Nc4 Bf6 Bd2 c1Q+ Ka2 a3 Qe2 a4 Be7 Nd8 Ne8 Qc5 Rg3 Rb4 Nh3 g1R Ba5 Qb6 Bg2 f1R Nc7 Rd1 Qe6 f2 Re3 f1R Be4 Qc5 Bc2 Rg6 Qf7 Rf4 Bb3 Rdf1 Re6 Qg1 Ne3 R4f2 Nc2 Rf8 Re3 Rh2 Qe6 Rf7 Qc6 Kg4 h5 Re1 h6 Kh5 Rg3 Re6 Qc4 Reb6 Re3 Rb8 Nd4 R8b5 Bc2 Rb1 Bb3 Rb4 Nc2 Qcf1 Re4 Rd1 Nd4 Qe1 Rc1 Qef1 Kb1 a2+ Kc2 a1N+ Kb1 a3 Nc2 Bb7 Re6 Bg2 Ka2 Bd5 Ba4 Nb3 Rb1 Nc5 Ra1 Ng5 h7 Rc1 h8B Nh7 Bh6 Re1 Rd1 Qf4 Rd3 Reb1 Rf3 Qfc1 Bd2 Nc6 Rd3 Nd8 Rde3 Qb2#
k3N1rR/4p2K/n1bBnQ2/B3p1B1/RB3qb1/p7/n1q1n3/nrbBN1R1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 bxa4 g5 f6 e5 fxe5 g6 hxg6 Nd2 g5 Nb1 g4 Kd2 g5 Kd3 a5 Ke4 d6 f4 Kd7 Kf5 Kc6+ Kg6 Kb7 c4 a3 h4 a4 b4 g3 f5 d3 b5 d5 b6 g4 c5 d2 h5 g2 h6 a2 h7 g3 f6 d4 f7 d3 Nf3 g1Q Ne1 g2 Na3 Qdd4 Nc4 Nf6 Qf3+ Ne4 Be2 d1N Bd2 Bh6 f8B Nc3 Qf6 Qgf2 Rg1 Bd7 Bd1 Na6 c6+ Kb8 b7 Nec5 Bg7 Rg8 h8B Qdf4 Nd6 Ne6 c7+ Ka7 c8R Rb8 Rf8 Bc6 Kh7 Qe2 Ne8 a3 Rb1 a1N Rb4 Na2 Ra4 Bg5 Bb4 d2 Bh6 Qec4 Qf5 Qc2 Bf6 Rd8 b8B+ Ka8 B8d6 Rb8 Ba5 Rb1 Bab4 Rg6 Rh8 Rg8 Bf3 d1B Qg6 Bh4 Bfg5 Bf2 Bh5 Bg4 Ba5 Be3 Bab4 Bf5 Bd1 Bc1 Ba5 Bg4 Qf5 Qg3 Bgd2 Qf4 B2b4 Qc5 Bg5 Qc2 Rh1 g1N Qg6 Qg2 Qf6 Ne2 Rg1 Qgf2 Bd8 Qc5 Bda5 Qc2+
1q3q2/B5b1/1nRnbb2/1B2pp2/4p1N1/NB1rN3/NNQRKr1n/2b3rk w - - 0 1 illegal: No proof kernel
1r1q3B/1nrnN1bN/3R1q1b/1p1Q1r2/b3K2N/3np1p1/3RBNNr/2k3B1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 d5 a4 g5 a5 e5 a6 g3 a7 e3 Kf3 b3 c5 d3 c6 d4 h5 e4+ Kg2 b2 c7 e2 h6 e1N+ Kh3 d2 h7 g2 Kg3 d3 Qh5 d1R Ra4 d2 Qh4 g4 Nf3 g1B Ra2 Nd7 Be2 Be3 Nc3 Rb8 a8N b1Q Nb6 Bg7 Nbd5 Qa1 Rf1 b5 Qh1 Nc5 Bb2 Bb7 c8N Rc1 Nd1 Ned3 Nf2 d1R Bd4 Nf6 Rd2 Nfd7 Kg2 Rf8 h8B g3 Rg1 Rc4 Re1 Rb1 Red1 Rb2 Qh5+ Ke6 Qg5 Rf5 Nce7 Ba8 Nh4 Nb7 Qh5 Rc7 Bc5 Rc2 Qf3 Qf6 Bb6 Rh5 f5+ Ke5 Nf4 R2c5 Ba7 Kd4 Bb6 Kc3 Ba7 Qb6 f6 Rcf5 f7 Qf6 f8N Kb3 Nh7 Kc3 Nfg6 Beh6 Nf4 Kb3 Ra1 Kc3 Ra6 Kb3 Rd6 Kc3 Rd1 Kb2 Rd2+ Kc1 Bd4 Na5 Be3 Bd5 Ba7 Nb7 Bb6 Nb4 Qd3 Ba2 Qd5 Nd3 Nh1 Na5 Nhg6 Bg5 Bg1 e3 Kf3 Nb7 Ke4 Rh2 Ng2 Bb3 N6h4 Ba4 Nf2 B5h6
rQ1qkq2/1R1R2Rn/1B2bp2/3K1RNq/1N2p3/1r2pBb1/2nB4/rnR4n w - - 0 1 illegal: No possible last move, all moves rejected
1R5R/2k2n1K/Q2p3B/3B1r1p/1nBq1Nr1/bq1R1R1N/bq3Rpr/3nr3 w - - 0 1 illegal: No proof kernel
2Kn1Nqn/q1b2R2/rB1pn3/1r2p3/B1p1b3/2R3b1/1krNBB1B/3QrR2 w - - 0 1 illegal: No proof kernel
4B1r1/2R1qb1B/1qpN2RB/1r3n2/1r1kN1Q1/4Npq1/5npq/NNb1Kb2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Ke6 e4 f5 h4 b5 h5 g5 a5 c6 a6 b3 a7 b4 d5+ Ke5 d6 c3 h6 b2 d7 c2 h7 g3 Kd2 g2 Qe2 g4 Ra3 f3 Rd3 f4 Rc3 b3 Qf2 g3 Bd3 Qe7 d8N Bh6 Ne2 g1Q Nb7 g2 Nd6 Be6 Qg3 f2 Qg4 f1B Ke1 Na6 Nd4 Rb8 a8N Rb4 Nc7 Qh2 Nd5 Nc5 Ne3 Bf7 Rc4 Rb5 Ra4 f3 Ra7 Bf4 Rc7 Nh6 Bd2 Rg8 h8N Nf5 Bc1 Qg1 Rh6 Qh2 Rg6 Rb4 N4b5 Bh6 N5a3 Kd4 e5+ Ne4 e6 Bf4 Bd2 Nf2 Ne4 c1R+ Nd1 Rc5 Ne3 Rcb5 Nac2+ Ke5 Na1 Kd4 Na3 b1Q+ Bc1 Qd6 e7 b2 e8B Qe7 Bc2 Qa2 Nb1 Qd5 Bd2 Qde5 Bc1 Bh6 Bd2 Qeg3 Bc1 Bb3 Nf7 Bg5 Nfd6 Bf7 Nbd2 b1Q Bd3 Qb3 Nb1 Bf6 Nec4 Bh4 Bh6 Bg5 Bc2 Bc1 Ne3 Qb2 Ra7 Re5 Rg5 Ra4 Rc7 Nh4 Rg7 Qb6 Ned2+ Kc5 Bg6 Rb4 Bh7 Nf5 N2e4+ Kd4 Rg6 Reb5
2k1qK2/1Nn2pBp/2NRp3/r1nQ1B1R/b4br1/2Rq4/1n2N1N1/rNr1q3 w - - 0 1 illegal: No proof kernel
6RB/rnp5/r4BBb/1K1p1pN1/1q1r2B1/2RrN2n/Bkb1Q3/2Rq1n1b w - - 0 1 illegal: No proof kernel
4K3/k2pnBb1/1r1br1rB/3b4/5p2/1R1RRQrN/4NpRr/q1B1rnR1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 c4 f5 a4 b5 h4 g3+ Kf3 g4+ Kg2 b3 e4 b2 h5 d3 c5 d2 h6 b4 c6 b3 a5 Ra6 h7 Nh6 c7 Bd6 e5 Qf6 e6 Nc6 e7 Bb7 Qf3 d1R Bb5 Rd3 Nd2 b1R Rh2 b2 Ne4 Re3 Nc3 Re6 Bc4 Ba8 Be3 Re1 Bc1 b1R Nce2 Rbb6 Nh3 Qe5 Ra3 Qa1 Rd3 Bb7 Rh1 Ba8 Rg1 Bb7 Kh1 g2+ Kh2 Ba8 Ng5 g3+ Kh3 Ng4 Kh4 Rg6 Kh5 Ne3 Nh3 Nf1 c8R+ Nd8 Qc6 f3 Rb8 f2 Qf3 Bd5 Rb7 Nc6 Bh6 Kf7 e8R Ne7 Ba2 Ke6 Rg8 Rc6 Rbb3 Rab6 a6 Ke5 a7 Ke6 Rh1 g1B a8R g2 Rg7 Bgh2 Raa3 Bhe5 Rg1 f4 Rg8 Bg7 Re3+ Be4 Rbd3+ Ke5 Bf7 Re6 Rdb3 Kd5 Rbd3+ Kc5 Rab3 Bd5 Kg5 Bb2 Rg6 Bg7 Kh5 Rg8 h8B Rcc8 Rg4 Kc6 Rg5 Kb7 Rg6 Ka7 Kg5 Bf8 Bb2 Bg7 Bc1 Rcc6 Rh1 g1R+ Kh5 Rg3 Rg1 Rg2 Rg5 Rh2 R5g2 Re4 Kg5 Nf5 Kg6 Rc3 Be8 Re6+ Kf7 Ne7 Rb2 Bh8 Rb3 Rgg6 Kf8 Bd4 Bf7 Bg7+ Ke8 Rc4 Rb2 Rce4 Rb5 R4e5 Rb4 Reg5 Rbb3 Rg3
r2RN2b/p1R1b1KB/6nR/n2B1k1p/qr6/1N1pnbr1/3B4/1nQR2bR w - - 0 1 illegal: No possible last move
1q1kbNr1/6Q1/Nnpq3B/R1p3b1/1N1nBbb1/R3n1rp/K1N1R1N1/7n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 e5 d6 c5 dxc5 e6 fxe6 Qf3 e5 Qd1 e4 a4 h5 g4 b5 d4 e5 Kd2 h3 Kc2 h2 Kb3 h4 f4 e3 g5 h3 d5 e4 a5 e2 a6 e1N f5 e3 a7 e2 g6 Nh6 f6 Be7 g7 Nc2 d6 e1B Na3 Bg3 Qd4 Bg4 Ne2 Bf4 Bg2 Nd7 Ka2 Nb6 Be4 Nf5 Re1 Nce3 Nc2 h1N g8R+ Kd7 f7 Beg5 Rf8 Rg8 Qg7 Nd4 Re8 Kc8 f8N Rb8 a8N b3+ Kb1 b2 Ra3 b4 Ka2 Rb7 Bd2 Ra7 Ra1 Ra6 Re6 Qd7 Re7 Kd8 Re5 Qe7 d7 Qd6 Re6 Bh2 Nf4 b1B+ Kb2 b3 Ng2 Ra4 Re7 Rc4 Ra5 Rc3 R1a3 Nf1 Bf4 Rg3 Ka1 Ne3 Re6 Bf6 Bh6 Bg5 Rf6 Nbd5 Bd3 Rf3 Nce1 Bc2 Bh7 b2+ Ka2 Bg6 Nc2 Be8 Be4 Be5 Rf5 Rg3 Rf2 Bef4 Re2 c6 Nb6 Kc7 d8N+ Ne7 Nd5+ Kc8 Nf6 N7d5 Nde6 Rh8 Nc7 Kd8 Na6 Rg8 Rd3 Nc7 Nd5 b1Q+ Ka3 Qb5 Ka2 Qb8 Rda3 Na8 Ndb4 Nb6
K3B1NN/4Npbk/2qq4/1p1p4/1R1b1NQB/r1B5/1Rnq1rb1/1qnN2b1 w - - 0 1 illegal: No possible last move
2B3n1/Npr1RRNR/R4B1q/2Q1pb2/2Kr2q1/rNn5/2Rp1r2/bkq2q2 w - - 0 1 illegal: No possible last move, all moves rejected
QR1n4/BK1k1n1N/1pr2B2/2q1R1RB/pb1qb3/1b4p1/5npN/RRrr4 w - - 0 1 illegal: No proof kernel
R2q1bb1/n3BB1Q/1p1R1N1p/1n1R1r1n/KRnb4/Np6/2pnr3/k1N4R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 g4 Kd6 a4 Ke5 d3 Kd4 Kd2 f5 Kc2 c5 e5 b6 g5 h6 a5 h3 a6 f3 g6 f2 a7 f4 e6 c3 Kb3 h2 e7 f3 e8N c2 g7 c4+ Ka4 b3 Nh3 c3 Ra3 Ne7 g8R Nf5 Nd6 Be6 Rg6 Bg8 Rg2 Nc6 Bg5 c1B Nf4 c2 Ne8 Be3 Rg4 Nd6 Be7 Nb5 Nf6 Rb8 a8R Nca7 Bg2 f1N Rg5 f2 Bd5 Rb7 Bf7 Nd2 Ra1 f1N Na3 Kc3 d4 Kb2 d5 Bg1 d6 Ne3 d7 Nec4 Ne2 Bd4 Nc1 Rc7 Qg4 Rc5 Qe4 Rf5 Rg4 Rh7 Rd1 h1N Qd3 Qc7 d8R Ng3 Rd6 Qd8 Rh1 Nh5 Rg5 Rf2 Rgd5 Re2 Rh4 Rg7 Qh7 Rg5 Rf4 Rf5 Re4 Bf2 Rf4 Ne5 Rb4 Nec4 Na2 Bc5 Rh1 Bd4 Nc1 Ka1
1B1n2RN/3bnBb1/Bk1b1n2/1b2rR1N/4p1pp/1rKRR3/q1p1R3/4r2Q w - - 0 1 illegal: No proof kernel
1RqQB2K/4rb1N/6N1/p1npbkpB/3pn2R/r2bB2r/2B4q/2NrB3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Ke4 g5 c4 a5 h4 d6 b4 f3 h5 f2 h6 a3 h7 a2 c5 g3 c6 g2 b5 Na6 b6 Bg7 b7 Qc7 b8B Bh3 Nc3 Bc8 Be3 Bh6 Rb1 a1R Rh4 Bb7 Nd5+ Ke6 Nf6 Ra3 Qd3 Ke7 Kf5 Ra7 Rb3 Qd8 c7 Bg7 c8B Nc5 Bd7 Bf3 Ba4 Bd5 Bc7 Qe8 Rb8 Rb7 Bc2 Qc8+ Nd7 f6 Kg6 Ke6 Nf8+ Ke5 Bb6 Re7 Bd2 Bb3 e4 Bc4 Ne2 g1Q Nc1 Qh2 Bg2 f1R Bf3 Rd1 Be1 Bd5 Bh5 Bb3 Qb5 Ba2 Qd7 f5 Qd8 f4 Bc7 Re6+ Kf7 Nf6 Kg6 f3 Kf7 Rg8 h8N f2 Nh7 Re7+ Kg6 Ke6 e5 f1B Rb7 d5 Rb8 Nfe4 Bd6 Bf6+ Kh6 Bb1 Ng6 Kf5 e6 Bd3 Bf4 Be5 Be3 Rc7 e7 Rh8 e8B Re7 Bb3 Bb5 Ba4 B1d3 Bc2 Bd7 Bb4 Be6 Be1 Rf8 Nh8 Rf6+ Ng6 Bf7 Kg7 Rb6+ Nf6 Rbb3 Kh8 Bc4 Bf4 Rh3 Be3 Bf4 Nh7 Bd3 B3d2 Bg3 Be3 Be5+
rN1R2Q1/Nk1q1rR1/N3Bp1q/nK1b4/2p2B1B/p1bp2q1/3rBB2/2n1q3 w - - 0 1 illegal: No proof kernel
3R4/R2K1b1n/1N1pqpQq/4qn2/NN1kq1p1/4p1r1/1RrN2B1/b1B1rN2 w - - 0 1 illegal: No proof kernel
rn3R1n/NRb1NQp1/B1Nr1q2/p5q1/1Nb3nK/1k1np1r1/1p6/4BR1N w - - 0 1 illegal: No possible last move, all moves rejected
R7/pb4pB/1b1R1rN1/2q2NkN/1K1B1qn1/Q5rp/rp2N1b1/2nr1NR1 w - - 0 1 illegal: No proof kernel
2rb2Kr/3kp3/1r3pnB/1r1nB3/Q3b1Np/1Np2R2/r4RBR/BB2qr2 w - - 0 1 illegal: No proof kernel
4nBbB/1nkBb2b/1rNp1rr1/2pBp2K/8/q1p2R1n/R1p4B/1N2Q2R w - - 0 1 illegal: No proof kernel
2q5/1nNRpB2/2r1rn2/2R2rpp/K1BR2rb/1bp1p3/1B2R1nk/Q3R2N w - - 0 1 illegal: No proof kernel
q3nrrR/Q3BkN1/K4N2/1r1n1Nb1/1N2p1qn/R2b3B/4q3/3bB2R w - - 0 1 legal: proof: b4 b5 e4 d5 exd5 g5 c4 c5 h4 gxh4 a4 cxb4 a5 f6 a6 Qb6 c5 Qa5 c6 Qd8 c7 Bxa6 c8Q f5 Qc4 Bc8 Qe4 fxe4 Rxa7 Bf5 Ra1 Bc8 Ke2 e5 d4 h5 g4 b3 f4 h3 g5 e3 Kd3 b2 d6 h4 g6 e2 g7 e1N+ Kc3 h2 Kb4 e4 f5 h3 f6 Ng2 d5 Ne7 g8N Bh6 d7+ Kf7 d6 Bg5 Qa4 Nh4 Na3 b1B Nf3 Bd3 Nd4 Nd5+ Kc5 b4 Nf5 b3 Nc2 b2 Bd2 b1Q Ra3 Qa2 Be1 Na6+ Kc6 Qe8 Nb4 Nac7 Qa7 Qe2 Bg2 Qf8 d8R Rb8 d7 Rb5 Bf1 Ne8 Bg2 Ba6 Bf1 Bc2 Rb8 Bd1 d8B+ Kg6 Be7 Kf7 Rg1 h1R Ra8 h2 Bh3 Kg6 f7 Qg4 Rf1 Rg1 Nf6 h1Q Rc8 Qg8 f8N+ Kf7 Ne6 Qhf3 Neg7 Qe2 Ra8 Rg2 Rh1 Qf8 Rc8 Rg8 Ra8 Rf2 Rd8 Rb8 Rc8 Bd3 Rd8 Rb5 Rc8 Nb6 Kb7 Nd5+ Ka6 Nd6 Rc4 Qa8 Rc8 Ne8 Rb8 Nd6 Nd4 Kg6 Rd8 Rh8 Nd7 Rf7 Rg8 Ne8 Ndf5 Rf8 Nf6 Kf7 Ngh5 Rh6 Rh8 Rh7 Bg3 Rg7 Be1 Rgg8 Nhg7 Qg3 Ra1 Qg1 Ra3 Qgg4
3q2r1/r4NR1/n3b3/nn1RQb2/bk2Bn1r/3R4/BqBN3B/1n1KN2q w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 a4 Ke7 e4 Kd6 c4 Kc5 a5 f5 e5 h5 a6 d5 g6 b5 g7 b3 e6 f4 a7 f3 e7 b4 e8R d3 Bd2 h4 Qc1 b2 Bh6 d2+ Kd1 b3 Re6 g2 Re8 d4 Nh3 g1R Rh2 g3 Rh1 g2 Rf8 f2 Ra4 Bf5 Rf6 Ne7 g8N Na6 Ng5 h3 Ra5+ Kb4 c5 h2 Nf3 Nc6 Bf4 Rh4 Rg6 Be6 Ra3 Na5 Ne1 Bf5 Bb5 f1B c6 Bc4 c7 Bd5 c8B Bde6 Ke2 d1N Nd2 b1N Ba4 b2 Qc7 Qd5 Bc2 Qd8 Rg7 d3+ Kf3 Ndc3 Nh6 Nb5 Qe5 Qf8 Nf7 Qd8 Nf1 d2 Rd3 d1B+ Ke3 Rb8 a8B Rb7 Nd2 Rd7 Be4 Ra7 Bb3 Bc2 Ba2 Ba4 Ke2 Rf1 Bb3 g1N+ Kd1 Ne2 Bc2 Rg1 Bcb7 Rg5 Bbd5 Rg2 Rf1 h1Q Bh2 Nf4 Ba2 Rg1 Rd5 Rg3 Rf3 Rg5 Rfd3 Rg6 Rh7 Rg8 Nc4 N1a3 Rg7 b1Q+ Kd2 Qb2 Kd1 Nb1 Nd2 Rgh8 Bf3 Re8 Be4 Rg8
2BRr2n/B5bK/2rqq1Bb/rbb5/4b1N1/R1Nb2Q1/2R1bN1n/N3k3 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 Ke7 e4 Ke6 c4 Ke5 h4 g5 b6 d5 h5 f5 b7 b3 c5 g3+ Kf3 g4+ Ke2 b2 Kd3 g2 h6 g3 h7 f3 c6 f2 c7 f4 Qc2 f3 Rh5+ Bf5 c8N Qf6 Na3 b1B Nb6 Qe6 Bd2 Bh6 Bc1 Ne7 Nc8 Ra5 Rh1 Re8 h8R Nd7 b8N Ng6 Ne2 g1B Rh3 g2 Bg5 Nf6 Nd6 Ng4 Nc3 Nh2 Ra2 Bg4 Bh4 Kf4 e5 Bg7 Rg8 Nh8 Nd7 Bh5 Be2 f1B Nf6 Be3 Bf2 g1B Nde4 Bg6 Ng4 Bf5 Bh4 f2 Bd8 Bg6 Bb6 Bh5 Rg3 Bg2 Bc5 f1B Ba7 Bd2 Re3 Bf3 Nef2 Kg3 Nc4 Bc1 Nd2 Kg2 Nb3 Kg3 Re4 Bch6 Re3 Kg2 Na1 Be4+ Kd2 d3 Qb3 d4 Rc2 Bc6 Rf8 Bb5 Bf3+ Kg3 Rg8 Be2 Bb7+ Bf3 Bc8 Bg6 Rf8 Be4 Rg8 Kg2 Qa3 Kf1 Rf8 Be2 Qd6 Qe7 e6 Qd7 e7 Qe6 Kc1 Ke1 Qg3 d2+ Kb2 Rd8 e8B d1R Bg6 d3 Ref3 Rd6 Rd8 d2 Rd3 Rc1 Re3 d1Q Rd3 Rd5 Kb3 Be8 Kc4 Re5+ Kd4 Qd2 Na4 Qf4 Ra3 B8b5 Nc3 Qff6 Rca2 B1d3 Rb2 Bf8 Rc2 Bhg7 Ke3 Qfe7 Kf4 Qb4 Bf5 Qbd6 Kg5 Bh6+ Kh4 Bfg7 Bg6 Bf5 Kh5 Re3 Na4 Bfe4 Nc3 Qee7 Na2 Bh1 Rd2 Rc6 Nc3 Bg5 Nfd1+ Bf2 Rc2 Qf7 Raa2 Re8 Ra4 Be3 Ra3 Bc5 Kg5 Bhe4 Kh5 Qfe6 Kg5 Bgd4 Kh6 Bg7+ Kh7 Bh6 Qh4 Bg3 Ndf2 Be5 Qg3 Beg7
brrb1q2/2r1QN1n/1b1r3N/8/q1R3Nq/1B1B1K2/1RNkr3/1bR2nB1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 Ke7 e4 Ke6 c4 Ke5 h4 g5 b6 d5 h5 f5 b7 b3 c5 g3+ Kf3 g4+ Ke2 b2 h6 g2 h7 d3+ Kf2 Kd4 c6 f3 e5 g3+ Ke1 f4 c7 f2+ Kd2 f3 e6 Nf6 e7 Na6 e8N Nb4 b8R Bb7 c8B Nc2 Nc7 Ne3 Bf5 Be7 Nh3 g1B Qb3 g2 Nc3 b1B Rc8 Rb8 Qb2 Ba8 Be2 f1R Ra2 f2 Qa3 Re1 Bd1 f1Q Bb3 Re8 h8N Nh7 Bg6 Qf8 Rb2 Bf2 Ne4 g1R Bf5 Rg7 Na6 Beh4 Rc6 Rc7 Ng3 Qg5 Rc5 Rec8 Nb4 Qh5 Be4 Bd8 Nf7 Qh4 Bg6 Bg1 Nf5+ Ke4 Rc4+ d4 Nf2+ Kf3 Rbc2 Kf4 Ng4 Ke4 Bb2 Re2+ Kc1 Nf1 Kd1 d2 N5h6+ Kf3 Bd3 Bf2 Ba1 Be3 Rb2 Bg1 Nf6 Ke3 Nc2+ Kf2 Be4 Ng3 Rc6 Re3 Qe7 Kf1 Bf5 Kf2 Ra2 Re5 Na3 Ke3 Rac2 Re4 Nfg4+ Kd3 Rc1 Nf1 Rh2 Bf2 Bc3 Be3 Bb4 Bg1 Bc5 Be3 Bc2+ Kc3 Ke2 d1R Bg6 d3+ Kf3 d2 Rg2 Re6 Bge4 Rd6 Bed3 Re1 Re2 d1Q Bb6+ Kb4 Ba4 Qb3 Rb2 Re2 Ba7 Bc5 Nc2+ Kc3 Bb6 Qc4 Bb3 Qa4 Ba7 Kd2 Bb6 Bb4 Bd4 Ba5 Bg1 Rcb7 Rc5 Bab6 Rc4 Rbc7+
1nnqNR2/1NnR3r/1r1Bkb2/6R1/4B1rN/2nKb3/q2BQ1Rp/6qn w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 h4 Qxh4+ Kd2 f5 Nf3 b6 Qe1 Bb7 Qd1 Qh2 Ke1 Be4 Ng1 f3 Nd2 f4 Nb1 Bf5 gxf5 Qh3 Na3 Qg2 Nb1 Qh2 Kd2 Ke7 c4 g5 a4 h5 a5 d5 a6 b5 a7 g4 c5 d3 f6+ Ke6 c6 b3 f7 b4 c7 f2 c8N f3 e4 b2 e5 h4 Be2 f1Q Qa4 g3 Nd6 b3 Qc6 g2 Qa6 h3 Bd1 f2 Qa4 d4 Nc4 Ne7 Qe8 Bg7 f8B Bf6 Nf3 g1B Ra4 Rh7 Nc3 b1R Na5 b2 Nb5 Qhg2 Bc2 h2 Qh5 Nc8 Nb7 Qg8 Bb4 Qd8 Nh4 Qg2 Ra2 f1Q+ Qe2 Qff2 Kd1 d2 Be4 Qe1+ Kc2 d1N Be3 Nc3 N5d6 Nb5 Kd3 Nc7 Bed2 Be3 Ne8 Qeg1 Ra5 Qg8 Rd5 Q8g2 Rd7 Q2f2 Bd6 Qfg2 Bg6 Qd5 Be4 Qa2 Kc2 d3+ Kc3 Qf2 Rg1 Qe1 Rg2 Qg1 Be1 d2 Kd3 d1N Bd2 Rc1 Rg5 b1N Rg2 Rc4 Rg5 Nc6 Rg2 Rb8 a8R Nbc3 Ra5 Ra8 Rd5 Ra6 Rc5 Rb6 Rb5 Qe7 Rd5 Nb8 Ra5 Kf7 e6+ Kf8 Bf3 Rb2 Rag5 Rb6 Ng7 Rg4 Bc6 Kg8 Be4 Qd8 e7 Kf7 e8R+ Be7 Ngf5 Ke6 Rf8 Bf6 Ba3 Rb4 Nfd6 Rb3 Ne8 Nf2+ Kc4 Nh1 Kd3 Rb5 Bd6 Rb6
3bk1N1/2Q2q2/1br4q/3Nn3/1BR5/qbR2Bpn/Nbb1KRR1/r3Br2 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 g4 h5 f4 hxg4 c3 dxc3 Qa4 exf4 Qb3 Bd6 Qd1 Bf8 e4 g5 h4 f5 b4 d5 e5 a5 e6 g3 h5 c2 b6 g2 h6 f3 h7 f4 b7 f2+ Ke2 d4 e7 f3+ Kd2 d3 b5 g4 b6 g3 Qe2 a4 Bb2 a3 Rh2 a2 Bc3 Qd6 Qe5 Nf6 Nh3 g1B Rg2 Nh5 Be2 f1Q Bb4 f2 Bf3 Be6 Nf4 Bb3 Nc3 Nd7 Nfd5 Nf4 Rc1 a1Q Na2 Qh6 Qc7 Ne5 b8B Ra6 b7 Rc6 Ba7 Nh3+ Be3 Rg8 h8R Bg7 b8N Bf6 Nd7 Qb2 Rh7 Qa3 Rf7 Rg4 Bg5 Re4 Bf4 Re1 Be3 Bh4 Rf4 Bg5 Rc4 Bf6 Bf4 Rd1+ Ke3 d2 Rc3 Qc4 Bg5 Qf4+ Ke2 f1R Rc4 Bb6 Rc3 Kf7 e8R Bd8 Re6 Qf5 Rf6+ Ke8 Be3 Qe6 Bf2 Qg8 Be1 Qf7 Ra1 c1B Rf4 Qd6 Rfc4 Bb2 Rac1 Qh6 R1c2 Ra1 Rf2 Bc5 N7f6+ Kf8 Ng8 Ke8 Be4 Bb6 Rg2 Rf4 Bf3 d1B+ Kf1 Rff6 Rcf2 Bdc2 Ke2 Rfd6 Nde7 Rdd1 Nd5 Rdb1 Bd2 Rg1 Be1 Rf1
r1n1Rn1N/N1Q2r1N/qBp4K/BnR5/bnn2B1R/3k4/b2q1b2/b6N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 Kd7 Ke2 Kd6 Ke3 Ke5 b4 g5 h4 a5 d3 f5 h5 g4 h6 a4 h7 c3 b6 a3 b5 c2 b7 a2 b6 c6 Ba3 c1N Rh4 f4+ Kd2 Kd4 e5 f3 e6 f2 e7 f1B e8R Bg7 Nh3 g1N Nc3 g2 Bb4 Ne7 Ba5 Nd7 b8N Nge2 b7 g1B Nf2 Rf8 h8N Rf7 Nh1 Nf8 Nd7 Bf2 Nf6 Be6 b8B Nc8 Bf4 g3 Nh7 g2 Qe1 g1N Nb5+ Kd5 d4 Ke4 d5 Nd3 d6 Nb4 Qc1 Nd4 Na7 Bb5 d7 Ba4 Rb1 Qg5 d8B a1Q Bdb6 Nb5 Rb2 Qg2 Rc2 Nf3+ Ke2 Be5 Rc5 Ba2 Qc3 Nd2 Qg3 Nc4 Qg7 Qh2 Qg3 Kd4 Kf3 Kd3 Kg4+ Be3 Kg5 Qd2 Qh2 Bf2 Kh6 Qf1 Be3 Ba1 Qc7 Qfe2 Bf4 Qe7 Qb8 Qb7 Qc7 Qa6
b7/nr1b1B2/RKB1rNn1/4bq1Q/1p5q/1Rr3N1/2Rnb3/N1BkrR2 w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 Kf2 Kd7 d4 Kd6 e4 b5 g4 f5 g5 c5 g6 h5 g7 f3 Ke3 h3 Qd2 h4 Qg2 f4+ Kd3 a2 Ne2 h2 Qh3 f2 Ng3 b4 Kc4 f3 Kb5 c4 Rg1 h1R Bh6 c3 Qh2 c2 Bd3 f1Q Qf2 c1R Nd2 h3 Qh2 f2 Bg5 Ra7 Rg2 Nc6 Nb3 Rc7 Kb6 Rc3 Bc4 Nge7 g8N Bg7 Bc1 Be5 Nf6 Rh6 Rg1 Qd3 Rf1 Ng6 Bb5 Na7 Bc6 Be6 Rb1 Qh8 Na1 Bd7 Rb3 Rg1 Qh1 h2 Qf3 h1B Qh5 Ke7 d6+ Ke6 Rb1 Qf3 Rb3 Qf5 d5+ Kf7 Rd1 f1B Rd2 Be2 Rc2 Be6 d7 Re1 d8R Bd7 d6 Ke6 Ra8 Qd8 Ng4 Qh4 Rf8 Bf4 Nf6 Ke5 Ra8 Kd4 e5 Kd3 e6 Be5 e7 Bhf3 e8B Be4 Ba3 Bh1 Bf7 Bhf3 Rc1 Kd2 Rc2+ Kd1 Bc1 Nb5 Ra6 Na7 Bb5 Ba8 Ba4 Bdc6 d7 Bb5 Ra3 Bbc6 d8R+ Bd7 Nb3 a1N Bc6 Rh8 Rb8 Re8 Rd8 Re7 Rf8 Re6 Rb2 Nc2 Na1 Ne3 Rab3 Nf1 Rc2 Nd2 Bg8 Rd6 Ng4 Qd3 Rf1 Re6 Nf6 Qf5 Bf7 Rb7+
RQb4r/5R1b/2pbrB2/1BB1N1rk/R1q4q/1n2N3/n5b1/nB1K1nN1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 g4 h5 d4 f5 e4 Kf7 d5 Kg6 b6 c6 d6 f3 g5 f4 b7 b3 e5 b2 e6 c3 d7 c2 e7 f2+ Kd2 h3 e8R h2 Bb5 f1N+ Ke2 h4 Re4 h3 Qe1 f3+ Kf2 Kh5 g6 Nh6 g7 Bd6 g8B Na6 b8N Nc5 Bgc4 Nb3 Qe3 Nf5 Ke1 Ra5 Na3 b1B Bd3 Nfd4 Nc4 Qh4+ Qf2 Re8 d8B Re6 Ba3 c1N Bf6 Na2 Qg3 f2+ Kd1 Nc2 Rf4 Bf8 Ne3 Bd6 Ra4 Qc4 Ba6 Rg5 Nd7 Qh4 Ne5 Qc4 Ne2 Qh4 Rg1 h1B Bc5 h2 Bab5 Bg2 Be4 h1R Bf5 Nfd2 Rf1 Rh2 Ng1 Rh3 Re1 f1Q Qf4 Qc4 Rf1 Rh1 Rf2 Nf1 Ra8 Nab4 R1a4 Nca1 Bh7 Bg6 Qh2 Na2 Qg3 Bf7 Bb1 Bg6 Rf4 Bh7 Rf3 Rf5 Qg8 Rg5 Qd8 Bb7 Qb8 Bc8 Be4 Bg8 Qa7 Qg3 Bd8 Kh6 Bb1 Rhh5 Rf7 Qgh4 Nd3 Kg6 Qb8 Rh8 Ne5+ Kh5 Bf6 Bh7
3B1R2/2b2Q2/nbkb1r1B/q1B1RR1N/1qn1q3/1Nn2N1B/4pn2/1q2K2b w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Ra7 Bc1 Rb7 Nd2 axb4 Nb1 b3 Ke2 b4 Ke1 Rb5 axb5 Rh5 Bd2 Rh7 Bc1 Rh8 c4 d5 h4 Kd7 f4 e5 h5 g5 c5 b2 b6 g3 f5 d3 h6 d4 h7 e3 b7 g2 f6 e4 f7 d2+ Ke2 b3 Qc2 d1N Ra3 d3+ Ke1 g4 Qc3 e2 Qa5 g3 Ra2 Ne7 Qd2 Na6 b8B Qa5 Nc3 b1Q Na4 b2 Be5 Nf5 Bc7 Nd6 Rh3 Nf2 Nf3 g1B Bd8 g2 Rh5 Bb7 Re5 Nc4 c6+ Kd6 c7 Kc6 c8N Bd6 f8R Bh2 Nc5 g1B Nb6 Ba8 Rff5 Rf8 h8B Rf6 Nb3 Qc2 Bg7 b1Q Nd5 Qcc3 Bh3 Qcb4 Bh6 Bc7 Re8 Bhd6 Nf4 Qc3 Rb2 Nd1 Nh5 Nb6 Rg8 Kb7 Rc2 Qcb2 Rcc5 Nc3 Rf8 Qba3 Be3 Q3b4 Qb2 Bf2+ Kd2 e1N Qa2 Bg1 Bf2 Qc2+ Ke3 d2 Nh4 d1Q Nd4 Nd3 Qe6 Qg4 Qa2 Qcb1 Qf7 Qg2 Nb3 Nc4+ Kd4 e3 Rce5 e2 Bh6 Qh1 Bfe3 Kb6 Bf2 Bf3 Bfe3 Kc6 Bf2 Na3+ Ke3 Bd5 Kd2 Qf3 Bg3 Bgb6 Bf2 Qfh1 Bc5 Nf2 Bg5 Bg2 Bh6 Q1e4 Nf3 Qhb1 Bg7 Bh1 Bh6 Qb2+ Ke1 Nc4 Bd2 Qbc2 Bh6 Qb1+
1Nq2b1K/8/b1nRn1r1/1B1NkB1p/2n2R1n/4N1Q1/1nR1pqr1/3BqN2 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Bd2 fxe4 Bb4 axb4 a5 b6 axb6 Ra6 Ra5 Ra7 Ra1 Ra8 Ke2 Kf7 g4 Kf6 c4 e5 f4 d5 g5+ Ke6 f5+ Kd6 b7 h5 b6 h3 g6 h2 g7 d3+ Ke3 b3 f6 d2 f7 b2 c5+ Ke6 c6 Nh6 g8B Ra6 c7 Nc6 Qe1 d1Q b8N Qc2 Nd2 b1N b7 Na3 Rc1 Qb2 Bh7 Rg8 Ne2 Rg2 Nd4+ Kd6 Rg1 h1N Nd7 Ng3 b8N Ne2 Bf5 Nf4 Rc2 Ne6 Bb5 Bb7 Qf2 Qc8 Rd1 Rb6 Qe1 Ba6 Nf6 Qa2 Qf2 Qb2 Nf1 Nc4+ Ke2 e3 Kd3 e2 Qg3 e1Q Bg4 Be7 f8R Nf5 Rdd2 Nh4 Bd1 Qa2 Rf7 Bf8 Nf5+ Kc5 N5e3 Kd6 Kc3 d4+ Kd3 Qb2 Ke4 d3 Nd5 Qa2 Rf6 Qb2 Rdf2 d2 R2f4 Qa2 Bf3 d1N Be2 Qe8 c8B Ndb2 Bd1 Qd8 Bd7 Qc8 Rh6 Nf3 Kf5 e4 Kg6 Ke5 Kh7 Nh4 Nf5 e3 Kh8 e2 Nf5e3 Qf2 Rhf6 Qa5 Rg6 Qae1 Rgf6 Nc5 Bf5 Ne6 Rh6 Nc5 Rd6 Ne6 Rc1 Rb7 Rc3 Rg7 Rc2 Rg6
2BB1k2/1qNBb3/3p1b2/R2r2r1/1p1n3q/2nn4/N1bb2NQ/KR1RbR2 w - - 0 1 legal: proof: d4 h5 f4 b6 b4 Rh6 c4 Ba6 g4 hxg4 f5 Rh5 c5 Bc8 Bb2 Rh6 e4 Rh8 f6 exf6 e5 Rh3 Bc3 Rh8 b5 bxc5 Bb4 a5 d5 axb4 Qd4 Ra6 Qd1 Re6 dxe6 Rh3 Qb3 Rh5 Qd1 Rh8 Kd2 g5 Kc1 g3 Kb2 d6 a4 c4 h4 c5 a5 f5 b6 g2 a6 c3+ Ka2 f4 b7 f5 h5 c2 e7 c1N+ Kb2 c4 a7 f3 a8N c3+ Kc2 f2 h6 g4 h7 g3 Qd2 f4 Qe1 f3 Nd2 Nd3 Kb1 c2+ Ka2 c1B Nh3 g1B Nb1 g2 Nf4 Nf6 Qd2 Nc6 b8B Ne4 Bc7 Bf5 Nc3 Nd4 Rb1 Rg8 h8R Rg5 Ka1 Bh7 Qe2 Bd2 Na2 Nc3 Rg8 Kf7 e8R Be7 Rgf8+ Kg7 e6 Qb8 Bd8 Qb7 Qd1 Be4 Be2 f1R Qc2 f2 Bg4 Rd1 Nc7 f1Q Rf5 Bge3 Ra5 g1B Ng2 Qe1 Rf8 Qh4 Rf1 Bgf2 Rhg1 Bf6 e7 Bfe1 e8B Kf8 Bc8 Bf4 Bed7 B4e5 Bf5 Be7 Bg4+ B5f6 Bgd7 Bc6 Rh1 Ba4 Rhg1 Nb2 Qh7 Nd3 Qh5 Bc2 Qh7 Qg4 Qh2 Qh4 Na8 Nf3 Bb6 Nb2 Bf2 Bf4 Bb6 Bf2 Bd8 Rdd5 Rfd1 Nd4 Rgf1 Bd2 Nc7 Nd3 Rb5 Bg3 Ra5 Bge1
3B2KQ/4p1B1/n3qr2/R1b4q/3NnnR1/1NBq1pn1/1rb4k/Nb1N2R1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 f4 g5 e4 gxh4 Be2 fxe4 Bf3 b5 axb5 exf3 Kf2 Kf7 g4 Ke6 c4 a5 b4 h5 g5 Kf5 b6 Kg4 g6 d5 b7 h3 b5 h4 c5 h2 f5 h3 c6 a4 c7 d3 Ke3 Kg3 Kd4 a3 Ke5 d4 f6 d2 b6 a2 g7 d3 f7 Nf6 g8R+ Bg7 f8B Be6 c8N Rh6 Nc3 Ra4 Bb2 Rg4 Nd6 Rb4 Ndb5 Bf5 Na3 Na6 b8N Rb3 Qf1 d1N b7 d2 Nd7 Nf2 b8B d1B Nc5 Bdc2 Nd1 Qd3 Bc7 N2e4 Bc3 Rb2 Bd8 Bg6 Ke6 Nh5 Qe2 Bd4 Nb3 Bc5 Bfg7 Bh7+ Kf7 Nf4 Qe3 Bf5 Qd4 Rf6+ Ke8 Kg2 Ne2 Bh7 Re1 h1N Rg1+ Kh2 Qe5 Bb1 Ned4 Nhg3 Qh5 Bf5 Qh8 Bh7 Bh6 Bf5 Rg4 Bc2 Bg7 Bh7 Rb1 a1Q Rc1 Qa2 Ra1 Bb1 Nac2 Bf5 Na5 Qac4 Nab3 Qe6 Ra5 Bh7 Re1 Kg2 Nca1 h2 Rf1 h1Q Re1 Qh3 Rg1+ Kh2 Ndc2 Bg8 Ncd4 Bf7+ Kf8 Qh5 Bh6 Be8+ Kg7 Ba4 Kh7 Qef5+ Kg8 Qe5 Bg7 Qf5 Nd2 Bac2 N2b3 Qe6+
K1Rbn2b/p3N2b/1RB3Bn/q3n3/3pn3/N1N1kr2/Q5B1/R1rqB2q w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 h5 e4 f5 g4 c2 b4 h3 b6 h4 b5 h2 b7 h3 b6 Na6 b8N Be7 b7 Qa5+ Bb5 Nc7+ Ke5 d5 Be8 Nh6 Bd7 Ne8 Bc6 Bd8 Na3 Rf8 Bd2 c1B Ne2 Bb2+ Nc3 Rf7 Be1 f3 Qc1+ f4 Qb1 f2 Qa2 f1Q Rb1 Ba1 Rb6 f3 Kd4 Kf4 e5 f2 g5 Qg1 g6 Bf5 g7 Bh7 g8B Bb2 e6 f1N+ Bf2 Ba1 e7 Ne3 Be1 Qg4 Rg1 h1N Rf1+ Nf2 Rg1 Nf6 e8B h2 Rh1 Rc7 Bg6 N2e4 Be6 Qh5 Bh3 Ne8 Bg2 Nc4 Rg1 Ne5 Rh1 Qa6 Rg1 h1Q Rf1+ Nf2 Kc5 Ke3 Rg1 Qd3 Rf1 Qd4+ Kb5 Qhd1 Ka6 Qb4 Ncb5 Nf6 Bc3 N2e4 Bd7 Qdb3 Bc8 Neg4 Bd7 Be7 Nc6 Rf8 b8R Ne8 Rc8 Bd8 Ne7 Rf3 Rc1 Rc4 Kb7 Qbd1 Ka8 Qa5 Be1 Bh8 Ra1 d4 Bc6 Rc1 Nc3 Ne5
K2q2N1/b2b2r1/BR1pnq1p/1rqRN3/4bBb1/q5Nk/R3N3/2BnQ3 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 f5 e4+ f3 e5 b3 b6 h6 b7 b2 e6 h3 c5 f4 e7 d3 e8R d2 c6 h2 c7 Na6 b8B Bc5 g3 d6 Kc6 Rh7 Qb3 d1B Qe3 f2 Na3 b1B Ne2 f3 Ra2 Bd7+ Kb7 Nf6 c8N Nc7 Ne7 Nfd5 Nf5 Ba7 Re5 Ne6 Nc4 Nc3 Rd5 Rg7 Bc7 Be4 Ba5 Rc8 Bb4 Rc5 Ne5+ Kh5 Rg1 h1Q Qd2 Qh2 Qe1 Qh3 Bba3 Ra5 Bf4 Rc5 Bac1 Ra5 Nd3 Kg4 Rg2 Qh5 Ne5+ Kh3 g4 Qhg5 Nfg3 Rb5+ Ka6 Qf5 g5 Qff6 g6 Qf5 Nd4 Qff6 Bc4 f1Q Rgb2 f2 Nde2 Qg1 Rb4 f1Q Bd3 Rh7 g7 Qc5 g8N Rg7 Rb3 Qf3 Rbb2 Ra5+ Kb7 Qfe3 Rb6 Rb5 Bc4 Qa3 Bd3 Qec5 Bc4 Rb3 Ba6 Rb5 Nd4 Bg4 Nde2 Qdc7+ Ka8 Nd1 Rb7 Q7b6 Rb8 Qbc7 Rb6 Qcd8+
4K1Nr/R7/1p3qp1/2kqbr1B/Rq3NR1/1qnBNrQ1/1n1B2q1/R5n1 w - - 0 1 legal: proof: b4 a5 g4 c5 f4 h5 d4 hxg4 a4 cxd4 f5 axb4 a5 b6 f6 Bb7 a6 exf6 axb7 f5 Qd2 f4 Qd3 Qc7 Qd1 Qd8 Kd2 Ke7 Kd3 Kd6 Kc4 f5 Kb5 d3 e4 b3 h4 b2 c4 d2 h5 f3 h6 g3 h7 g6 Qa4 d1Q Nc3 b1Q+ Qb3 f2 Ra4 f4 Nh3 f3 Nf4 g2 Ncd5 g1N Ne3 Qf6 Bd2 Ne7 Bd3 Nbc6 b8R f1R Rb7 f2 Rba7 Na5 Rh4 Rb8 Rg4 Bg7 Ra1 Rhf8 h8R Nd5 Rh6 Rf7 Rhh4 Rh8 c5+ Ke5 c6 Kd4 e5 Nc4 e6 Nc3+ Ka6 d5 e7 Kc5 Kb7 d4 Kc7 Nb2 Kd7 Rff8 e8B Qf3 Be2 d3 c7 Qe1 c8N Qd5+ Kc7 Rf7+ Ne7 Qb1 Bb5 Qe1 Bc1 d2 Bbd3 d1Q Bd2 Rff8 Ng8 Qc2 Qa4 Qcb3 Qe4 Qb1 Qg2 Qb4 Qf3 Qd1 Qg3 Q1b3 Rh5 Qh4 Re5 Rf5 Re4 Be5+ Kc8 Qf6 Bf3 Bd6 Kd7 Be5+ Ke8 Rc1 Nd1 f1Q Ne3 Qg2 Rd4 Rf1 Bd1 Q4a3 Rda4 Rf2 Rh4 Rf1 Bh5 Rf3 Rg4 Qab4
1qNKrbR1/1BR4n/RnNn4/4Nk1n/3r1r2/ppN2B2/3r1r1B/2n4Q w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 d5 gxh4 d6 cxd6 Qd3 d5 Qd1 d4 a4 b5 Bd2 b4 Bc1 Ba6 b3 Qc7 Rh2 Bb5 axb5 Qc8 Rh1 Qc3+ Kf2 Qxb3 Ke1 Qb2 Kd2 Ke7 Kd3 Ke6 Kc4 d5+ Kd3 h5 g4 a5 c4 f5 e4 h3 g5 h4 e5 h2 g6 h3 g7 a4 c5 f3 b6 a3 c6 f2 b7 f4 c7 f3 c8N Nf6 g8R Rh4 Be3 Kf5 e6 Nh7 e7 Nd7 b8N Rf4 e8B Nb6 Be2 f1R Bc6 f2 Na7 b3 Na6 Re8 Rg4 Qc1 Bb7 Qc8 Rg3 Qb8 Kd2 d3 Kc3 d2 Rg8 Rd4 Qc1 d1R Nc8 R1d2 Nf3 Rf4 Bc5 d4+ Kb4 d3+ Kb5 Rfd1 Kc6 f1R Ne5 R1f2 Rhg1 h1N Nc3 h2 Bd6 Ng3 Bf3 h1N Nb4 Nh5 R1g6 N1g3 Ra2 Ne2 Rc2 Nd5 Qa1 Nc1 Bc7 Nb6 Rh6 Nc4 Kd7 Nd6 Qb1 Rde2 Nbc6 d2 Re6 Ree4 Reg6 Rd4 Rh6 Re1 Re6 d1N Rh6 Nb2 Rhg6 Re7+ Kd8 Ree2 Qa1 Red2 Rh6 Ncd3 Qh1 Nbc4 Na5 Ne8+ Nd7 Bg7 Ne4 Rg4 Bh2 Bf8 Ra6 Ned6 Ne5 Nb6 Rc7 Rf4 Nac6 Nc1 Nc3 Re8#
2K4r/B2B2qn/kNQ1Rnrr/2p1r3/r1b2p2/R1q2N2/2r2B2/2qNR2N w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 a5 b4 axb4 f5 e6 Bb2 exf5 Bc1 Be7 Bg2 fxg4 Bf1 g3 Qb3 g4 Qd1 Bg5 hxg5 Qf6 Ba3 Qd6 Bc1 Qd8 e4 Kd7 Ke2 Kc6 Ke3 Kb5 Kf4 c5 Ke5 h5 a4+ Ka6 d4 f5 d5 b5 g6 c3 a5 g2 d6 f4 d7 c2 Ke6 g3 g7 h4 e5 h3 Qd5 b3 Ra3 h2 Nc3 b2 Nf3 g1Q Bh3 b1R Be3 c1Q Nd1 g2 Bf2 Nf6 g8N b4 Nh6 b3 Ng4 b2 Qc6+ Qb6 Ke7 Nh7 d8B Nd7 e6 Ndf6 Bc7 Ra1 Bb8 b1R Ba7 Ra2 Kd6 Re2 e7 Rbb2 e8R Rbc2 Re6 Re5 Ke7 Qe1 Rf1 Qc3 Re1 g1R Kd6 Bb7 Ke7 Ng8+ Kd7 h1R Qe4 Kb5 a6 Bd5 Qg6 Qba5 Qe8 Qa4 Qc8 Ka5+ Qc6 Bc4 Kc7 Rd8 Kb7 Rd4 Kc8 Rg2 Bg3 Rde4 Ngf2 Rgg1 Bf5 Rh6 Nh1 Rgg2 Bf2 Rgg6 Bb8 Rd4 a7 Rde4 a8N Ngf6+ Qe8 Rd4 Nb6 Ka6 Ba7 Rde4 Rb3 Qaa1 Bg4 Bf1 Ra3+ Ra4 Bh3 Bc4 Bf5 Nf8 Qc6 N8h7+ Re8 Nd7 Re2 Qd4 Be6 Reh5 Bg4 Qac3 Re1 Qg7 Bh3 Ndf6 Bd7 Nf8 R8e7 Re5 Re6 N8h7+
R1Bq1rn1/Bnp3B1/2K3B1/1p6/k3nqRr/N1R1Nq2/5r2/1bqrQ1N1 w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 a5 b4 axb4 f5 e6 Bb2 exf5 Bc1 Be7 Bg2 fxg4 Bf1 g3 Qb3 g4 Qd1 Bg5 hxg5 Qf6 Ba3 Qd6 Bc1 Qd8 e4 Kd7 Ke2 Kc6 Ke3 Kb5 d4 f5 g6 h5 d5 h4 Kd4 f4 g7 f3 a3 f2 d6 h3 Kd5 h2 e5 g2 d7 b3 e6 b2 e7 g3 e8B Na6 Qe1 Ka4 Bg6 b5 Be3 c3 Kc6 c2 Ba7 c1Q+ Bc4 Qf4 Be6 f1R Bg4 Qe7 d8B Nc5 Ra2 Qef8 Bf6 Bf5 Bh3 Bd3 Bc8 Qd8 Bd4 Rh4 Be5 Nh6 g8N Rf2 Bg7 Nb7 Nf6 Ng8 Ng4 Bc2 Ne3 Rb8 Nd2 b1N Ndc4 Nd2 Ra1 Ra8 Rc1 Bb1 Rc3 Ne4 Nb2+ Ka5 a4 Kb4 a5 Rb8 Ne2 g1R a6 g2 Nbc4 Ka4 Na3 Rgf1 Rg1 h1Q Bad4 Qh3 a7 Qhf3 a8R+ Kb4 Qd2 Rd1 Ba7 Ka5 Qe1 Ka4 Rh1 g1Q Rh3 Qgg2 Ng1 Qgg5 Rg3 Qh6 Nd5 Qc1 Rg4 Qhf4 Ne3 Qd4 Bcf5 Rf8 Bc8 Qd8
RRqB1r1k/1qRr1R2/1n2K1b1/p2B1qQ1/pnN5/8/1p1N2N1/2nB2br w - - 0 1 legal: proof: b4 b5 f4 c5 a4 cxb4 h4 bxa4 c4 e5 h5 exf4 h6 d5 cxd5 gxh6 Rh4 h5 Rh1 h4 Kf2 h5 Kf3 f5 d4 Kf7 g4 Kg7 e4 a5 e5 b3 g5 b2 e6 h3 g6 h4 e7 h2 e8N+ Kh6 d6 h3 g7 Kh7 d7 Nc6 d5 Nf6 d6 Ra7 Ne2 Nb4 Nd2 Nfd5 Bg2 Rb7 Rf1 h1Q Rb1 Qc7 d8R h2 d7 Bc5 Nd6 Rf8 g8B+ Kh8 N6c4 Nb6 Bd5 Bg1 Re8 Qc6 d8R Rd7 Rf2 Bb7 Rb8 Qc8 Qb3 Bc6 Qe3 Bb5 Qe7 Ba6 Qg5 Bb5 Na3 Bd3 Bb3 Bc2 Nac4 Bd3 Bd1 Bc2 Ng3 Bd3 Nh5 Bc2 Ke2 f3+ Ke3 Bd3 Kf4 Be4 Ke5 f4 Ra8 Bg6 Rf1 f2 Bd5 f3 Nf4 Qg2 Ke6 h1R Re1 f1N Re5 f2 Rf5 Qd8 Rf7 Ng3 Rb8 Qf3 Ng2 f1Q Ra8 Qc7 Reb8 Ne2 Ra1 Qb7 Ra3 Qh5 Rc3 Qe1 Na3 Qf2 Rc7 Qc5 Nac4 Qf3 Nb1 Qc3 Be3 Qc2 Nbd2 Nc1 Bf4 Qcc6+ Bd6 Qb5 Be7 Qc8 Bd8 Qba6 Rc6 Qab7 Rc7 Qf5+
qB3b1B/qqQ5/2NR1p1r/1NR1b3/2p4r/1r3p2/K2nN2B/1RBnkb2 w - - 0 1 illegal: No possible last move, all moves rejected
k7/3N1q2/K1pNn1b1/1BRqrR1N/N1np1bQ1/6B1/p1n2brq/B1R5 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 e5 f4 exf4 c4 h5 c5 hxg4 c6 dxc6 Kd2 Kd7 Kd3 Kc7 Kc4 Kb7 e4 a5 b4 g5 h4 f5 e5 g3 e6 a4 h5 g4 b6 g2 b5 f3 h6 f4 h7 a3 e7 a2 e8N g3 Ng7 f2 Qc2 f3 Qd1 Bf5 Nd2 Nh6 Nh5 Nf7 Ne4 Rg8 h8R Ng5 Bb2 Nd7 Rc1 Bh6 Kb4 Ra5 Ba1 Bg6 Nd6+ Ka8 Rc5 Ne5 Ne2 g1Q Nc3 g2 Na4 Qh2 Bc4 Rg7 Rf8 g1B Rf5 f1Q Qe2 f2 Qg4 Ne6 b7+ Kb8 Bd3 Nc4 Be2 Ka7 b8N Bf4 b6+ Ka8 Nd7 Qg8 Bd3 Qfg2 Be2 f1N Bd3 Qf7 b7+ Ka7 b8B+ Ka8 Bc7 Bf2 Be2 Nfe3 Rc1 Nb2 Bb5 Qd5 Bd8 Nbc4 Bh4 Rg8 Bg3 Ra7 Ne5 Re7 Nd7 Rg7 Nb2 Nc2+ Ka4 N4a3 Ka5 Nc4+ Ka6 Ng5 Rd1 Re5 Na4 Ne6 Rc1 Bh6 Qf4 Bh7 Bh4 Rg2 Bg3 Bg6 Qg4 Bf4
k1BNB1n1/q1bp2N1/2rqR3/KQ1r1R2/bp1Bn1n1/1bq5/5N1p/1R5B w - - 0 1 illegal: No possible last move
n1Br1N2/p2rbR2/2kB3p/1n1b4/qbq4p/3R1B2/1Q3KR1/B2Nn1Nr w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 e4 d5 b4 Kd7 g4 c2 g5 d4 e5 f3 b6 f2+ Ke2 d3+ Ke3 d2 b7 Be7 e6+ Kc6 g6 Nd7 b8B Qe8 g7 Nb6 Be2 f1N+ Kf2 Ne3 Nc3 Nf6 g8R Nfd5 Rh3 Nc7 Bb2 c1B Rg2 Bb7 Qc2 Nb5 Bd6 d1R Bf3+ Rd5 Qb1 Bd2 Nd1 Nc2 Bf6 Rc8 Qb2 Rd8 Ra3 Na8 Rd3 Qd7 Rhg3 Ne1 Rg7 Qe8 Bfe5 f6 Rf7 Rd7 Bc3 h6 Bd4 f5 Bc3 f4 Bg7 Bd8 e7 Rg8 Bge5 Rg3 Bc3 Rh3 Bd4 Rh1 Bh8 Qg8 e8B Qg4 Bd4 Be7 Bg7 Kb6 Bf6 Rd8 Bd7 Rd4 Bc8 Bd5 Be4 f3 Bh8 Na3 b5 Bb4 Bg7 Rc4 Bh8 Rc7 Bf6 Rcd7 Bfe5 Ka5 b6 Nb5 b7 Kb6 b8N Qf4 Nc6 Qg4 Nd4 Qf4 Ne6 Kc6 Nf8 Qg4 Ke3 f2 Bf3 f1Q Qc1+ Qc4 Ba1 Qc2 Qb2 Qc4 Rg8 Qh3 Rg2 Qhg4 Kf2 Qge4 Rd4 Qec2+ Rd2 Q2b3 Rd3 Qa4
1N2K3/3p2QB/p2R3b/r2qRN2/5rBn/q3N2r/kBpR2q1/1q2bb1R w - - 0 1 legal: proof: f4 b5 a4 bxa4 b4 g5 h4 gxh4 c4 e5 b5 exf4 Kf2 Nc6 d4 Nxd4 b6 Nb5 cxb5 Bb4 Nc3 Ba5 Nb1 Bd2 Kf3 Ke7 Ke4 Kd6 Kf5 Kc5 g4 Kc4 g5 c5 b7 h5 b8N f3 b6 h3 b7 f2 g6 h4 g7 h2 Ra2 a3 Nf3 h3 Rc2+ Kb3 e4 a2 e5 a1B e6 c4 e7 c3 e8B Qa5+ Bb5 f1Q Qe1 Bh6 Rg2 c2 Rd2 Ne7+ Kg4 f5+ Kh5 f4 g8R Bc3 Qe5 Nf5 Kg6 Qa3 Kf7 Ka2 Bd3 Nh4 Bh7 Qg2 Nd4 f3 Bb2 f2 Nf5 f1R Rg6 Rf4 Qg7 Ba5 Rgd6 Bb4 Re1 h1Q Re5 h2 Ke7 Qc1 Bh5 h1Q Be2 Qd5 Bg4 Qhg2 Nc3+ Kb3 Ng3 Qb1 Nd1 Ka2 Nf5 Ba5 Nde3 Bc3 Nc6 Bb4 b8R Ba6 Rd8 Bf1 Nb8 Ba5 Rd3 Be1 Rd2 a6 Rf8 Ra7 Rf6 Rb7 Rg6 Rb5 Rg5 Rc8 Rh5 Rc3 Kf8 Ra5 Ke8 Nf3 Rh1 Nh4 Nc4 Rcf3 Nce3 Rh3
b1rNrb2/nbB4N/1K1p1B2/3kp1R1/p1pq3Q/2RN4/1nB2nr1/5R1B w - - 0 1 legal: proof: e4 g5 a4 b5 axb5 f5 Ra5 fxe4 Ra3 Bg7 Ra1 Bf8 h4 gxh4 d4 c6 d5 cxd5 c4 dxc4 Kd2 Kf7 Ke3 Ke6 Kd4 h5 Kc5 a5 g4 e3 f4 a4 b4 e2 f5+ Ke5 f6 e1N b6 h3 b7 h4 b5 h2 b6 h3 f7 Rh6 g5 Rg6 Qd4+ Ke6 Bd3 Bh6 f8N+ Kf7 Bc2 e5 Na3 Qe8 Nb5 Bg7 Ne2 Rd6 g6+ Ke7 Rf1 h1R Nh7 Ke6 Bg5 h2 Ra3 Nf6 Rc3 Bf8 g7 Rg1 Nc1 h1B Nd3 Qd8 Na7 Nc6 b8B Ng4 b7 Rg2 Bf6 Nf2 Qh4 Rd4+ Kb5 Kd5 Bc7 Rdg4 b8R Bb7 Kb6 d6 Nb5 Na7 Nd4 Qd7 Rd8 Rc8 g8B+ Qe6 Bf7 Rg8 Nc6 Rh8 Bg6 Qg4 Re8 Qf4 Nd8 Qe4 Re7 Rg8 Rg7 Qd4+ Nc5 Ned3 Bf5 Nb2 Rg5 Rh2 Bh3 Be4 Bg2 Ba8 Bh1 Rg2 Qh5 Be7 Qh4 Re8 Ka5 Bf8 Nd3 Bf5 Ka6 Bd7 Ka5 Bdc6 Ka6 Bcb7+ Ka5 Qe4 Kb6 Qd4+
R2r2K1/2kNbR1p/1r2Rp1r/B7/pQ3N2/1pqp3n/1r4B1/1r1n1BRN w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 d5 gxh4 d6 cxd6 Qd3 d5 Qd1 d4 a4 b5 Bd2 b4 Bc1 Ba6 b3 Qc7 Rh2 Bb5 axb5 Qc8 Rh1 Qc3+ Kf2 Qxb3 Ke1 Qb2 Kf2 Kd8 Kf3 a5 Ke4 d5+ Ke5 b3 g4 f6+ Ke6 h3 Kf7 h2 c4 f3 e4 d3 c5 f2 c6 d4 e5 d2 g5 d3 b6 Na6 e6 Nc7 e7+ Kc8 b7+ Kb8 e8R+ Ka7 b8N Kb6 g6 Qc2 g7 Ba3 Nc3 Ne7 g8B Ned5 Nge2 Bf8 Nf4 Nb5 c7 Ra6 Qg4 d1R c8R Rd2 Nce2 Nbc3 Rg1 h1R Ng3 Rh6 Rc7 Nd1 Nh1 Qc3 Re2 Rb2 Bd2 Qc5 Rce7 Qc3 Nd7+ Kc7 R2e6 Rc6 Ng6 Rd6 Qb4 Nf4 Be1 Nh3 Nf4 Rd4 Re8 Rd6 Ra8 Be7 Kg7 Rb6 Bf7 Rc8 Ra4 Bf8+ Kg8 Re8 Bh5 Rd8 Bf3 Ne3 Ra1 Nd1 Rg7 a4 B3g2 Qc5 Rf7 Qe5 Be2 f1R Bc3 Re1 Bef1 Qd4 Qc4+ Qc5 Ba5 Qc6 Qe4 Qc3 Qb4 Ndf2 Be2 Rf1 Rd1 Rg1 Rd2 Rc1 Rd1 Rcb1 Rg1 Nd1 Bef1 Be7+
R1r2n1B/B3q1b1/2b1r1Q1/rr1r3B/1kN1Bnq1/2Rq1rN1/r2R1nN1/2K5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Kd6 c4 Kc5 h4 f5 a4 b5 h5 d5 h6 g5 e5 f3 e6 f4 h7 f2 a5 d3 e7 b3 e8R b4 a6 b2 a7 d4 Nh3 f3 Ra2 g3 Nc3 b1Q Qc2 g2 Rg1 g4 Rb2 g3 Nd1 b3 Rh1 g1R Rh2 g2 Nc3 Ne7 Ng5 Nd5 Kd1 d2 Rh1 Nf4 Re1 Kb4 c5 Qe7 c6 Nd7 c7 Bb7 c8B Bg7 Be2 f1R Nge4 f2 Rh3 Nf8 Bf3 Bc6 Ra2 b2 Ng3 Rh1 Qf5 g1Q Be4 Qd3 Nce2 b1R Qg6 Rh2 Bg4 Rc8 a8N Ra1 Ra6 Ra5 Bgf3 Rb8 Bg4 Rbb5 Bh5 Rg8 h8B Qg2 Nf5 Qg4 Ng3 Rg1 Nb6 f1R Ra7 Rf3 Nc4 Rgf1 Bb2 Re3 Ra8 Rff3 Bf5 Re6 Be4 Qe3 Kc2 d1N Ba1 Qd3+ Kc1 Nf2 Rd1 Nd7 Rd2 Rc8 Bb2 Nf8 Ba1 Qe3 Bb2 d3 Bd4 Rg2 Ba7 Qd4 Rc2 Rh2 Rc3 Rg2 Rh2 d2+ Kb2 d1R Kc2 Nd5 Nf4 Qd3+ Kb2 Rd2+ Kc1 Rda2 Rh1 Rh2 Ng2 Nf4 Rd1 Rh1 Ne5 Re1 Nc4 Ree3 Rd2 Ree5 Nh4 Red5 Ng2 Re2 Bf5 Ree5 Be4 Re6
bB2n2q/R4rbr/K1knrb2/3n2R1/2Nb4/B2b1Nb1/NQ1bN1B1/3R3q w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 Kd7 f4 g5 c4 b5 c5 g3 a5 b3 h5 d3+ Ke3 d4+ Kd2 b4 f5 g4 f6 b2 h6 e3+ Ke1 d2+ Ke2 g2 Kd3 b3 Kc4 g3 Kb5 d3 f7 e4 h7 e2 a6 e1B a7 e3 Rh6 e2 Ra4 Nc6 Rb4 Nce7 Rg4 Nf6 Rh1 Nf5 Rgh4 Ne8 Re4 Nfd6+ Ka4 Bb7 Re7+ Kc6 Rh5 Bg7 Nf3 g1B f8B g2 Qc2 d1N Nc3 b1B Ba3 b2 Na2 d2 Rd7 Ne3 Rg5 d1R Be7 Rf8 h8N Bg3 Ng6 e1B Nf4 Rf7 Ne2 Bd2 Qb3 Rb8 a8R Bd3 Ra7 b1Q Qb2 Re1 Bf6 Ra8 Be5 Nd5 Bf4 B1h2 Be5 g1B Bg2 Bd4 Bf4 Ne4 Bb8 Qc8 Rd8 N4d6 Rd7 B3e5 Rd8 Bhg3 Rd7 Nc3+ Ka5 Rh1 Rd8 Rh7 Rd7 Qh1 Rd8 Kd5 c6 Qch3 c7 Kc6 c8N Bef6 Nb6 Nd5+ Nec3 Qh5 Nc4 Q5h2 Bc7 Rc8 Bb8 Ba8 Ka6 Rcc7 Ne2 Rce7 Rdd7 Re6 Rdb7 Bh4 Rb3 Qh3 Rc3 Q3h2 Rc1 Bg3 Rd1 Rh8 Rd7 Qh7 Rb7 Qg8 Rd7 Rh7 Ra7 Qh8
3R3N/1q3Nrr/b2BqKn1/qb2r3/RNn2Q2/B3R1Nn/6Bb/kr3rq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 h4 b5 c4 g5 e5 f5 e6 d5 a5 d3 h5 Kd4 c5 b3 a6 g3+ Kf3 d2 e7 g4+ Kg2 b2 e8R b4 h6 b3 c6 Ra7 h7 Bd6 c7 Nc6 Qe1 d1Q Re2 Na5 Bd2 Nc4 Ra5 Ne7 Re3 Ng6 Rh4 f3+ Kh1 f4 Qf2 g2+ Kh2 Qe2 Nh3 g1N Ng5 Nh3 Nc3 b1Q Rb5 b2 Bg2 Qee1 Qg3 f2 Rb8 f1B Nf7 f3 Bc1 f2 Ne4 Re8 h8B+ Re5 Qf4 g3+ Kh1 Bb7 c8N Qda5 Ne7 Bc6 Bf6 Bb5 Rd8 Rd7 a7 Bd3+ Bf1 g2+ Kh2 g1R Ng3+ Kc3 a8N d4 Bg2 f1R Nc7 Kb3 Na6 Ka2 Bg7 Ka1 Bf8 Be2 Nb4 d3 Rg4 d2 Rh4 d1Q Rg4 Nh4 Ng6 Qb3 Ngh8 Ng6 Rh4 Qe4 Rg4 b1R Ba3 Qb7 Rh4 Bb8 Bd6 Qa2 Nh1 Qc1 Kg3 Bd3 Kg4 Qe1 Ng5 Rh7 Ng3 Qaf2 Bd5 Rg2 Ngf7 Qg1 Bf3 Re4 Kf5 Re5+ Kf6 Be8 Ne2 Rb5 Qg4 Nd2 Re7 Bc6 Bc7 Ne5 Nd5 Bc4 Qf5 Rgg7 Bg2 Ng6 Ree8 Bd3 Ra4 Rc5 Re7 Ba6 Nb4 Nc4 Qf3 Bcb5 Bf4 Qg3 Qf2 Qg4 Re3 Bd6 Qf3 Bf8 Bb8 Bd6 Qf5 Bf4 Bd6 Bh2 Qf4 Re5 Ng3 Qe6#
r2n2n1/N1Q1N1rN/Bn1R3B/2b1kBn1/b1r1n2B/1b6/2bbR1RK/6qb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 a4 g5 h4 b5 c4 f5 e4 b3 h5 g3 a5 b2 c5+ Ke5 c6 d5 a6 f3+ Kh3 f2 h6 g2 c7 g4+ Kg3 d3 h7 d2 a7 b4 Rh6 b3 Qe1 d1B Rh1 f4+ Kh2 d4 Na3 b1R Nh3 g1B+ Kg2 d3 Nc2 g3 Ne3 b2 Ra4 d2 Rd4 Bc5 Ra4 Bb7 c8R Qd4 Rh2 Nc6 Nf5 Nd8 Ra6 Ba4 Ng5 d1B Ne7 Bdb3 Qc3 f3+ Kh1 Ra1 Rg2 b1B Rd6 B1c2 Ba6 f1N Qc4 Bb4 Qc7 f2 Be3 Nd2 Rb8 Nf7 Re8 f1N Bf2 Rc8 a8N Nc4 Nb6 Nd8 Be1 Ra8 Nbc8 Nb6 Na7 Nd2 Bf2 Rc1 Be1 Kf4 e5 Ne4 e6 Ke5 Bf2 Bd2 Be3 Ngf6 Bf2 Rf8 h8B Rg8 Nh7 Rg7 Be3 Qc5 Bh6 Qe3 Re2 Qg5 Rg8 Bc5+ Kg2 Qe3 Kh3 g2+ Kh2 Rg4 B8g7 g1N Bg5 Nh3 B7h6 Rgg1 Bh4 B7d5 Rgg2 Ng8 Nec8 Qd4 e7 Ng5 e8B Bb1 Bf2 Nge6 Rg3 Rc4 Bg6 B1c2 Bhe3 Nc3 Bf5 Bh1 Ne7 Ne4 Bh6 Qa1 Rg4 Qd4 Bh4 Rg3 Rf4 Rg7 Rff2 Ng5 Rg2 Qg1+
1b1R3b/2NN3N/1RBR2KB/1b1r2n1/n3q3/3bbR1b/4rqrn/2Bkr2Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 c6 Ke3 e5 b3 e6 b4 c7 d4 e7 b2 e8N b3 h6 d3 h7 Bd6 Ne2 f3+ Kg1 g2 Rh6 f4 Kh2 g1B+ Kh1 g3 Ra5 f2 Kg2 f3+ Kh1 Qh4+ Bh3 f1R Ra2 f2 Kg2 Nd7 Qe1 Nb6 Ra3 Nf6 Bg4 Ne4 Ra1 Rg8 h8B Ng5 Bf5 Na4 Nbc3 b1B Be6 b2 Bd5 Bh3+ Kh1 Rg7 c8R Bb8 Rcc6 Bc2 Bf3 b1Q Nf6 Qb7 Re6+ Qbe4 Rb6 Bb1 Nd7 Re7 Bb2 d1B Nf4+ Be2 Nb5 d2 Ne6 d1R Nef8 Bd3 Ra3 Rd2 Qb1 Re1 Nc7 f1N Nh7 Nh2 Bc1 Rf7 Bhb2 Rf5 Rhd6 Bef1 Bg2 Ke2 Bg7 Be3 Bh6 Kd1 Qa1 Bb5 Rad3 Bd4 Rf3 Bh8 Kg1 Qhf4 Bh1 g2 Qb1 Rd4 Kf2 Bfd3 Qa1 Qd2+ Kg3 g1B Bg2 Be3 Bh1 Bf4+ Kh4 Be3+ Kh5 Qf2 Kg6 Rb4 Qc3 Rb2 Qc6 Qb4 Qe4 Rbe2 Qh4 Bg4 Qh3 Qe4 Qf1 Bh3 Bg2 Qeh4 Qh1 Qe4 Nc5 Qg4 Bf1 Qfh4 Ne8 Rf2 Rg3 Nc3 Bg2 Qa4 Bd5 Rg2 Bc6 Qae4 Rf3 Qf2 Nd7 Bc7 Bd5 Rc8 a8R Na4 Rf6 Bcf4 Rab8 Rc3 Rd8 Bb8 Nc7 Rc2 Rfd6 Re2 Bc6 Rd5+
1B1q3B/1rrrrq1k/4R1RN/1R1N2nb/nK5q/2n2qR1/3N2B1/3qQ1bn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 Kf7 c4 Kg6 a4 b5 a5 g3 c5 b3 h5+ Kh7 c6 g5 e5 b2 a6 b4 a7 g2 h6 f3 e6 d3 c7 f2 e7 g4 e8R f4 Qb3 g3 Nc3 b1N+ Kd1 d4 Ra6 f3 Qa4 d2 Kc2 d1R Kb3 d3 Qa3 d2 Nh3 g1Q Bg2 f1N Nf2 Bg4 c8N Bc5 Ree6 Nd7 Rf6 Bh5 Nd6 Nb6 Qa1 Rc8 a8R Rc7 Nde4 Na4 Ra5 Qh2 R8a7 Qh4 Rc6 Nf6 Kc4 b3 Kb5 b2 Re6 Re8 Rh3 Ree7 Na2 Nbc3+ Kc4 b1R Ng4 f2 R7a6 Rbb7 Rb5 Be3+ Kb4 Ba7 Bf3 g2 Rg3 g1Q Bg2 Qgh1 Rac6 Ne8 Rg6 Nd6 Bb2 Nf7 Rce6 Ng5 Ba3 Nb1 Nac3 Bd4 Nd5 Nbc3 Kb3 Be3 Bd6 Bb6 Kb4 Be3 Rf3 Ng3 Bf4 f1Q Bd6 Rc5 Bb8 Bg1 Rd3 Qf7 Qb1 Rf1 Qe1 d1Q Nd2 Rcc7 Rde3 Q1h3 Rd3 Nh1 Rg3 Kh8 h7 Rf4+ Ka3 Rd4 Nh6 Rd3 Nf6 Rdd7 Nd5 Bd4 Kb4 Q3g4 Reb6 Qgf3 Rge6 Kg7 h8B+ Kh7 Rg6 Re8 Rbc6 Ree7 Rce6 Bg1+
4NR2/R1N3q1/2RK2bN/1nQ3Nn/B1q2r2/1rb5/k2Bnrqr/B1qn3n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 d5 c4 f5 h5 b5 e5 g5 e6 f3 Kg3 f4+ Kf2 g3+ Ke1 b3 Kd2 Kb4 Kd3 g4 h6 g2 h7 f2 c5 f3 c6 b2 e7 g3 e8R Na6 a5 Bg7 c7 Nf6 Na3 b1R Bb2 Qd7 Be2 f1Q Rd8 f2 Nc2+ Kb3 Rg8 b4 Ra2 Nh5 Nf3 g1N Bc3 g2 Kd2 d3 Ke3 d2 Qe1 d1N+ Kd3 d4 Ke4 d3 Ng5 d2 Bg4 Ne2 Rf8 g1Q Ne3 Qgg2+ Bf3 Qdg4+ Kd5 Bf5 c8N Nc7+ Kd6 Bg6 a6 Qfg1 a7 f1R Bc6 Qc4 Ra6 Nf2 Qc1 d1N Bd2 Bc3 Ba4+ Ka2 Rc6 b3 Ng4 b2 Nh6 Rb8 a8N Rb3 Rh3 Nh1 Rhf3 Rf2 R3f7 Ra1 Rg7 b1Q Rd7 Nd5 Ra7 Nc7 Qc2+ Qb2 Qf5 Qc1 Qc5 Rg8 h8B Nb5+ Ke7 Rab1 Nd6 R1b2 Ne8 Rc2 Nac7 Rg7+ Kd8 Rgf7 Be5 R7f4 Ke7 Ba5 Ba1 Bc3 Ng7 Qg3 Nge8 Q1g2 Nh7 Qg5+ Kd7 Qe5 Ng5 Qg7+ Rf7 Neg3 Qf5 Qg1 Be3 Rf1 Qc5 Rh2 Bd2 Qg2 Ke7 R1f2 Kd7 Nd4 Kd6 Nge2 Rf8 Nb5+
q1N5/1BQ4R/1b1RB1rN/nK2qb2/r1pb4/2qq1r1q/2N3n1/1N2BRnk w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Ke7 Kd2 Ke6 g4 Kd5 a4 Ke4 a5 f5 g5 b5 d5 h5 g6 c5 a6 c3+ Kc2 f3 Kb3 c4+ Ka2 h3 e3 f2 g7 c2 a7 h4 d6 f4 d7 b3+ Kb2 h2 Kc3 h3 Ra4 b2 Bd2 c1B Ra6 b4+ Kc2 b3+ Kc3 f3 Na3 b1Q Bg2 f1Q Nc2 b2 Nd4 Qe8 d8N Nh6 g8B Qe1 Ra1 Bf5 Nb3 Ng4 Bh7 Bg7+ Kb4 Qe5 Qe2 Qd3 Bg8 b1N Nd4 Rh6 Nf7 Nc3 Nc2 Rg6 Nh6 Bf6 Qf2 Ne2 Be6 Nc6+ Ka4 Bg7 Qg3 Na5 Rb1 Qec3 Kb5 Bd4 Qc7 Qg3 Be1 Qe5+ Ka4 Ba3 Rb7 Bac5 Kb5 Qa3 Rb6 Qac3 Rd6 Bb6+ Ka4 Nf4 Ne2 Nf2 Rg1 h1Q Rf1 Qh2 Bh1 Qg3 Bg2 h2 Bh1 Rag8 a8R N2h3 Ra7 Ng1 Bg2 h1Q Rb7 Qh8 Kb5 Ra8 Ra7 Qgh3 Rb7 Ke5 e4 f2 Bf3 Ng2 Ra7 Qcd2 Nc3 Kf4 e5 Kg3 Bb7 Kh2 Nb1 Qg7 Bd7 Q2c3 e6 Qh8 e7 Qf6 e8N Qe5+ Bd5 Nb3 Rb7 Ra4 Be6 Na5 Rd7 Ne3 Nd6 Q1g2 Nc8 Kh1 Rd6 Qge4 Qc5 Ng2 Rh7 Qef3 Bb7 Qfd5 Ba6 Qa8 Bb7 Qeh2 Qc7 Qf4 Bd2 Qfe4 Re1 f1R Rd1 Rf4 Rf1 Rf3 Be1 Qe5+
q1NnQb1R/4b1b1/R2nrB2/pB2Nq1q/Bb2r2R/1r1b1n1B/8/1k1K1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 Ke7 h4 Kf6 b4 Ke5 e4 g5 c5 f5 h5 a5 h6 d5 h7 a3 c6 d3 b5 Kd4 e5 a2 c7 f3 e6 g3 e7 g2 e8B f4 b6 g4 b7 f2+ Kd2 g3 Bh5 f3 Nh3 g1B Bf7 g2 Qc2 Nc6 b8N Nge7 Na6 Rb8 Ba3 Nf5 Bg8 Rb3 Nf4 Nd6 Kd1 d2 Rh5 Bf5 c8B Bd3 Bf5 Qa8 Nb8 Nd8 Be2 f1N Bf7 f2 Na6 Nh2 Bh3 Nf3 Nb8 Ke3 Rh4 d4 Rh5 Bh2 Na6 g1B Be8 Rg8 h8R Rg4 Ng6 Re4 Qc3 Bf4 Qc5 Bg5 Rh4 Bge7 Nc7 Bh2 Qa7 Be5 Bb2 Beg7 Ba4 Re6 Na3 Re4 Rb1 a1B Ncb5 Re6 Bc1 Bc3 Qd7 Bb4 Qe8 Re4 Na7 Re6 Bg4 Ke4 Nc2 f1Q+ Ne1 Ke3 Bb2 Re4 Bc3 Qh3 Bgd7 Qf5 Ng2+ Kf2 Rc1 Re5 Bdb5 Be4 Nc8 Re6 Na7 Ne1 Nc8 Bb1 Bg4 Be4 N2f4 Ke3 Bh3 Bb1 Rc2 Ke4 Ke2 d1Q+ Kf1 d3 Kf2 d2 Bf6 Qdh5 Ne5 d1R Rc6 Rd4 Ra6 Nf3 Ke2 Rc4 Kd1 Ke3 Rc6 Bd3 Ne2 Re4 Ng3 Kd4 Rb6 Kc3 Ra6 Kb2 Nf1 Kb1
1RN3n1/2Nn1q2/n2pBq1q/2N2K2/2bR2r1/k1B2B2/1Nrb1R2/b3bQrb w - - 0 1 illegal: No possible last move, all moves rejected
N4k2/b1B2r2/1NBR1Nbq/nR2qq2/b1p1b2B/1rnR3Q/7b/1b1n1NK1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 e4 c5 d4 f5 a4 b5 g4 h3 g5 b3 d5 b2 g6 c3 d6 f3 e5 f4 a5 b4 a6 h4 a7 c2 e6 b3 g7 h2 e7 h3 Qd4 c4 Nc3 b1B Nge2 b2 Qe3 Qc7 Qd2 Nc6 Qd1 Bd7 Rg1 h1Q Rg3 h2 Rg6 Rh3 Bg2 Na5 Qd3 Nf6 g8N Ba4 Ne4 Nd5 Qe3 Nc3 Bd2 c1B d7+ Kf7 e8R Bd6 Ree6 Kf8 d8B Rh7 Be1 Rf7 Rg4 Rb8 a8N Rb3 N4g3 Bg6 Rg5 b1B Rb5 Qc5 Bf1 Qe5 Bg2 Bb8 Bb6 Ba7 Rd6 Ba3 Rd3 Bd6 Nf6 Bdb8 Rd6 Bc7 Ra3 Bcb8 Ng1 Bc7 Kf1 f2 Bb7 Qc6 N1e2 h1B Qf3 Bcb8 Bc7 Qa6 Qh5 Bhe4 Bc6 Qb6 Qf3 Qe3 Kg2 f1N Bf2 Qb6 Kg1 Ne3 Nf1 Ned1 Qh3 f3 Nf4 Qe3 N4d5 Qd2 Ndb6 Qh6 Bg3 f2+ Kh2 Qd5 Bh4 Qdh5 Ra2 Qd5 Rd2 Qe5+ Ng3 f1Q R2d3 Qff4 Kg1 Qff5 Nf1 Qe7 Bd8 Bc7 Re6 Bf4 Red6 Qee5 Bc7 Bh2+
q1r3B1/r2BR1n1/3q2rK/kn1N1N2/3Qq2b/q1n1B2r/1Rbp1qBN/5R2 w - - 0 1 illegal: No possible last move, all moves rejected
1qQnq2K/RBR4B/1kbr1b1n/nr3N2/n2R3B/p1R1N1qq/1r1N4/5n2 w - - 0 1 illegal: No possible last move
4bNQ1/bn2KR2/p1B1b1q1/N1r1q2n/R2q2n1/1BB2B2/r1b4N/Rb2q1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Kd5 b4 h5 g4 f3 b5 f4 e3 a3 g5 a2 c3 h3 b6 f2 g6 h2 b7 f3 g7 h4 Bb2 h3 Na3 Qe8 Nb5 Nc6 b8N Nh6 g8R Na5 Rg3 Nb7 Ne2 Ng4 Nc6 Bc5 Nd8 Rh5 Qc2 Qg6+ e4+ Ke5 Kc4 d3 Rg2 d2 Nd6 d1Q Nd4 Kf4 e5 Ke3 Be2 f1Q Kd5 f2 c4 Qfe1 Ne6 f1B Bf3 Bd3 Rf1 h1B Nf8 h2 Qb3 Rf5 Bc3 Bb1 Rc2 Bg2 Rcf2 h1N Rb2 Bb6 c5 Ng3 c6 Nh5 c7 Rg5 Rff2 Bf1 Rbc2 Bb5 Rb2 Ba4 Qc4 Bac2 Rb4 Qdd3 Ra4 Qdd2 Ne4 d6 Nc5 Be6+ Kc6 d5 c8B Qdd3 Ncb3 Bc5 Nb5 d4 Na5 Qde2 Qb3 d3 Nd4 d2 Rf1 d1B Kc7 Bef5 Qg8 Be6 Bd7 Q2f2 Bdc6 Be2 Bcd5 Bb5 Bb3 Qfd2 Rf2 Be8 Rf1 a6 Rf2 Ba7 Rf1 Rb8 Rf2 Nd8 Kd6 Nb7+ Ke7 Rc8 Rf1 Rc5 Rf2 B6d7 e6 Rgd5 Ne2 Qd4 Ng3 Qe5 Rf1 Rd2 Rf2 Qd4 Nf1+ Kf4 Nh2 Kg3 Re2 Bc8 Re5 Kf2 Rf5 Kg1 Rf6 Bf5 Rf7 Bbc2 Rb1 a1Q Rc1 Qb2 Rca1 Rg2 Nf1 Bb1 Nh2 Bfc2 Nf1 Bd3 Bd2 Qd5 Nh2 Bc6 Bb4 Qbd4 Bc3 Nd6 Kd8 Q5e5 e7 Ra2 e8B Be6 Ke7 Bdc2 Bd1 Bcd7 Be2 Nb7 Bf3 Bc8 Bb5 Bcd7 Bbc6 Be8
N7/B2pQ2q/qn3K2/kq1q2r1/rR1nr1R1/q3bb1b/R1rN1B2/1B4NR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 h4 f5 c4 b3 e4 g3+ Kf3 b2 a5 d3 h5 g2 h6 g4+ Kf2 f3 Kg3 f2 Kf4 g3 Ke5 d2 c5 f4 a6 b4 c6 b3 c7 f3 h7 Nc6+ Kf5 Qe7 a7 Qa3 e5 Bh6 e6 Nd4+ Ke5 Bb7 c8N Kd8 e7+ Kc7 e8R Ne7 Nd6 Kb6 Nb5 Be3 Ne2 g1R Rg8 g2 Rd8 Re8 h8B Nc8+ Kf6 Re4 Rh4 Ka5 Re8 Nb6 Rg8 Rc8 Rg3 Rc2 Rgg4 Rh1 Bg7 g1R Nc7 Rh2 Bg2 f1B Na8 f2 Qe1 Rhh1 Bf3 Bh3 Bh6 Rg2 Ng1 f1Q Bf4 Rhh2 Bg3 Qa6 Bf2 Rg3 Qe2 d1Q Nd2 b1Q Ra2 b2 Qe1 Re8 Be4 Rc4 Qe2 Ra4 Rh7 Qbd3 Bg6 Qdc4 Bb1 Bf3 Rh5+ Qcb5 Rh6 Bf4 Qe7 Be3 Rhh4 Nc2 Rb4 Rg5 Rhg4 Nd4 Nf1 Bf4 Bce3 Qdb3 Nd2 Q3d5 Nc7 Rg2 a8R Rh2 Rd8 Rg2 Na8 Rh2 Qg7 Re4 Qe7 Rg2 Rh8 Rh2 Bg3 Rg2 Bef2 Be3 Bb8 Rh2 Bd3 b1Q Ba7 Qbb2 Bb1 Qc2 Bg3 Re2 Bf2 Qcd3 Nf1 Rc2 Nd2 Ree5 Rh5 Qh7 Rh6 Re4 Rhh4 Bf1 Rh1 Bh3
Q1B1Kn2/1nr2bB1/1b6/Bn1Bp1bb/NNb2n2/4R1b1/R1Rq4/N3brk1 w - - 0 1 illegal: No possible last move, all moves rejected
1N1rqBqq/k1B1r3/Nn4N1/R1bn1n2/2r5/4pB1R/b1q1Qb1r/2N2KR1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 h5 g4 e5 a4 d5 c4 Kd7 a5 Kc7 c5 b5 g5 Kb7 f5 h3 f6 h2 f7 d3 c6+ Ka7 g6 d4 c7 d2+ Kf2 e3+ Kg2 h4 g7 d3 a6 b3 Qc2 d1R Bb2 h3+ Kf3 e2 Kf2 e1B+ Ke3 d2 Ke2 b4 Ba3 e4 Qc1 b2 Bg2 e3 Bc6 b3 Bf3 Nf6 g8R Bc5 f8B Bf2 Rg4 Nd5 Rg7 Nd7 Qc3 Rc1 Qc2 d1R Nc3 b1Q Ne4 b2 Nf6 N7b6 Nd7 Qe8 Nb8 Qa2 Bb4 b1Q Ba5 Be6 Qd2 Be1 Kf1 Rc4 Ne2 Qbc2 Rgg1 Bf2+ Qe1 Rdd4 Nc1 Re4 Qe2 Bf7 Bb4 Qab3 Ra5 Re7 Bc3 Bg8 Be5 Be6 Rg3 Rhh7 Rhg1 h1N Bf4 h2 Rh3 Ng3+ Kg2 Nc3 Rh6 Rb4 Nd7 Rc8 Nb8 Nf5 Kf1 h1Q Rh2 Bd5 Bd6 Ka8 a7 Kb7 a8N Rd8 Rh5 Qh4 Be5 Qf6 Rh4 Qh8 c8N Rc7 Ne7 Ra4 Re4 Rh2 Ng6 Re7 Nc7 Bf7 Nca6 Ka7 Rh4 Qc4 Rh3 Qg4 Bd6 Ba2 Nh4 Rc4 Bc7 Qgg8 Ng6 Ncd5
3N1rR1/2B1n2k/1bnb3r/rB1n2RN/b4q2/rR2pq2/B1b3NQ/1q2KN2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Kg6 c4 h5 a4 b5 f5+ Kh7 c5 d5 c6 e5 f6 d3 f7 e3 a5 h3 g5 d4 c7 d2+ Ke2 e4 a6 b3 a7 b2 Ra4 b4 Nf3 h2 Ng1 b3 Rc4 h4 Nc3 b1N Bg2 h3 Rc5 b2 Nd5 Bf5 c8B Ne7 Bf1 Nbc6 Be6 Qc7 Nf3 Qf4 Qc2 d1R Ne1 Rd3 Ng2 Nc3+ Ke1 e2 Nde3 b1Q Ba2 Ncd5 Qb2 Ra3 g6+ Kg7 Rc3 d3 Rg1 h1Q Rb3+ Kh6 g7 h2 g8N+ Kh7 Nh4 Bd7 Rg5 Qhf3 Nhg2 h1R Qd2 Rh6 Qc2 Rb8 a8R Rb5 Qb2 Rba5 Qe5 Qf5 Qh2 Q5f4 Rab8 Nd8 Ra8 Ba4 Rc8 Ndc6 Ra8 Ng6 Rc8 Bd6 f8N+ Kg7 Ne6+ Kh7 Re8 Nge7 Nd8 Q3g3+ Kd2 e1B+ Kd1 d2 Bb5 Bf2 Nf1 Qc3 Ke2 Qcf6 Bb2 Bg1 Be5 d1B+ Ke1 Bb6 Rf8 e3 Re8 Bdc5 Bc7 Bd6 Rf8 Qf3 Re8 Q6f4 Rf8 Qg6 Re8 Bc2 Nf6+ Kg7 Nh5+ Kh7 Rg8 Qge4 R8g6 Rf8 Rg8 Qb4+ Rc3 Qb2 Rb3 Qb1+
q2n2RK/3r1pR1/3Bn1N1/1N1b1B1Q/3n2rN/N4bbb/1nR1Bkr1/2n2n2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kf5 h5 c4 d5+ Ke5 b5 e4 b3 a4 b4 g4 b2 a5 h3 g5 h4 a6 b3 a7 f3 g6 f2 g7 d3 Na3 b1N Rh2 b2 Bf4 d4 Nc2 d2 Ra4 d3 Ne1 Na6 Qb3 d1N Qb7 d2 Qd7 Ne7 Kf6 Rg8 e5 Nc7 e6 Na3 Bg3 b1N Ng2 Nc2 Qe8 Kd4 Qb5 Nbc3 Nf4 Ke3 c5 Na2 c6 Nb2 Ng6 d1R Be2 f1N Nf3 Rd7 Bd6 Nd4 Qh5 Nc1 Rb4 Rb8 a8N Rb6 Rg2 h2 Rc4 h1B Rc2 h3 Nfh4 Rb4 Nb6 h2 Rg4 Be4 Nc4+ Kf2 Na3 h1B Rg5 Bhf3 Rg3 Na8 c7 Nec6+ e7 Bd5 Rg5 Qe8 Rg1 Nd8 Rg4 Bcb7 c8B Nc7 Rg5 Nce6 Rg3 Rh8 g8R Bg2 Rg4 Bh3 Rg5 Bh6 Rg4 Qf8 e8N Bf4 Nc7 Bg3 Ncb5 Bf3 Nf4 Bbd5 R4g7 Nf5 Nfg6 Rg4 Bb7 Nfd4 Bc6 Bc4 Be4 Bd5 Bf5 Rh7 Qg5 Rh5 Qh6 Rhg5 Qh5 Nf4 Rh7 Qe8 Kg7 Nfe6+ Kh8 Qf8 Rg7 Qe8 Be5 Qf8 Nb1 Qa3 Bd6 Qa8 N1a3 Bf4 Be7 Rg2 Bb4 Bg3 Bd6 Rg4
k2NR2Q/2bnrnN1/Bqbr1n2/4nb2/3pR2R/BbK2N2/bN1r4/1r2B3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 Kc6 a4 g5 c4 b5 c5 Kb7 h5 f5 a5 d3 h6 f3 h7 f2 e5 f4 e6 f3 e7 b3 e8N b2 Qc2 b4 Qc4 b3 Qe4 g3 Rh5 g2 Ra4 g4 Ra3 g3 Nc3 b1B Qf4 b2 Rh3 Ra7 c6+ Ka8 a6 Bf5 c7 Nf6 c8N Nbd7 Nb5 Ba2 Nd4 b1R Be2 f1B Qh4 f2 Bb2 Qb6 Nc6 Bd6 Rh2 Bc7 Ng7 Rd8 Kc3 d2 h8B d1R Bc4 Rd2 Nf3 g1N Ra4 g2 Ba3 Nh3 Nd6 g1N Bb5 Rb7 a7 Ng5 Ba6 Bb5 Re4 f1B Nc4 Nf7 Nb2 Bfc4 Qh6 Bcb3 Rhh4 Rc8 Nd8 Bc6 Nde6 Re8 Nd8 Re7 Qh7 Qb5 Qh6 Rd4 Nd2 Ng8 Nge6 Nf3 Be5 Rb6 Bed6 Ngf6 Ng7 Bb7 Bg3 N3e5 Qh8 Rd6 Be1 Bc6 Nf3 Rd2 Nde6+ Qb8 Be2 Kb7 a8R Qa7 Re8 Qb6 Nd8+ Ka8 Ba6 d4+
1k1rR2r/nn3QbN/5Bq1/1rb4n/b1Npq2b/2R2KN1/1r2nRB1/5BB1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 Kd7 h4 Kc7 a5 f5 e5 b3 a6 d3 e6 b2 h5 b4 c5 b3 e7 d2 e8R g3+ Kf3 g2 a7 g4+ Ke2 g3 h6 f3+ Ke3 f4+ Kd4 f2 h7 f3 Ke3 Bd7 c6 Qf6 Nc3 b1Q Rd8 b2 Qe2 d1N+ Kd2 Ne3 Qd3 Qg6 Ne4 Bg7 Qd4 Nf6 Ra3 Nf5 Rc3 Nh5 Rd3 Nd6 Ke3 Nb7 Ne2 g1B Rb3 g2 N2g3 Be8 Ng5 Qbe4+ Kd2 b1R Qc4 Bd7 Rc3 Rb5 Re8 Bh2 Kd1 g1B Be3 d4 Qf7 Rb2 Nf5 Bd6 Rh2 Bc5 Ng3 Rb5 Bc4 f1N Rf2 Na6 Be2 Rd8 a8B Nb8 Ke1 Kc8 c7 Nc6 Bc4 Na7 Kd1 Nd2 Bf1 Nb3 Ke1 Nc1 Kd2 Rg8 h8B Ne2 Nh7 Rb2+ Kd1 Ba4+ Ke1 Bgf8 Bf6 Rh8 Rg2 Bh2 Bg1 Bg7 Kf2 Rb5 Nf5 Bhd6 Ng3 Be7 Rh2 Kd7 c8N Kc7 Nd6 Kb8 Be5 Bh4 Bf6 Na5 Bc6 Nb7 Nc4 Rb2 Bd7 Rb5 Bdh3 Rb2 Bhg2 Rb5 Ke1 f2+ Kd2 Nef4 Bf3 Qe6 Bd3 f1R Rf2 Rfb1 Bf1 Qe7 B3g2 R1b2+ Rc2 Ne6 Ke2 Nef4+ Kf3 Ne2 Rc3 Qee4+
rk4N1/4q2n/nN2N1Q1/p2Rbrq1/4Rr2/1NbbR3/3rB1q1/BK1B1q1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 b4 f5 c4 d5 Kc2 Kd7 e4 Kc7 g4 a5 b5 d3+ Kb2 h3 c5 d4 g5 a3+ Ka2 d2 g6 h2 c6 d3 e5 h4 e6 h3 g7 f3 e7 f4 e8B f2 Nf3 Qg5 Qe2 d1R Be3 d2 Qe1 Bd6 Bd4 Bf5 Be2 f1Q Qg3 Be5 Bh5 Na6 b6+ Kb8 b7 Nf6 g8N Nh7 Qg2 Qe7 Qg6 Bd3 Ng5 f3 Ne6 f2 Rg1 h1R Rg4 h2 Re4 Qg2 Bb2 f1Q c7+ Ka7 c8N+ Kb8 Nb6 Qgg5 Rd4 Qfg2 Re4 Rhf1 Bc3 h1B Re3 Ka7 b8R Rf4 Rd8 Rf5 Rd4 Kb8 Rd5 Rdf1 Bhg4 d1Q Nd2 R1f4 Nb3 Qdf1 Bb2 Bc3 Re1 Be5 Ka1 a2 Bd1 Bc3 Re4 Be5 R1e3 Bc3 Be2 Be5 Nf6 Rd8 Ng8 Rd6 Bd4 Rd7 Kb2 a1B+ Kc1 Bb5 Kb1 Bc3 Bc5 Rd6 Ba3 Bc4 Bb2 Rd8 Ba1 Rd6 Rb5 Rd2 Rd5 Bd3+
nK2q1n1/1B1Q1RBR/r2b1qr1/RN4p1/bk1N4/r3p3/2BR4/qqn2Nq1 w - - 0 1 illegal: No possible last move
1NbN4/6n1/1RK3qB/R3Rb2/rr4kn/1n1pnrp1/BQ1R3b/N1B1q1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Ke6 h4 f5 a4 d5 c4 b5 e5 g5 c5 b3 c6 f3 c7 f4 a5 Kf5 e6 d3 h5 b2 e7 b4 e8N d2 h6 b3 a6 d4 h7 Nc6 a7 Na5 Na3 b1B Ne2 g3+ Kg1 g2 Kf2 g1N Nf6 b2 Rh4 g4 Ra2 Nb3 Qe1 d1Q Nd7 Ne7 Rh6 Qe8 Qc3 Qg6 Nb8 Kg5 Bh3 Bbf5 Nc2 b1Q Na1 d3 Rd2 Bg7 Qb2 Be5 Nd4 Rd8 Ndc2 Rd4 h8B Rb4 Nd4 Bd6 Ndc6 Be5 Nd8 Bd6 Re2 Qd2 Kf1 f2 Kg2 f1R Bg7 Qe1 Re5 Nf3 Bf8 g3 Bg4 Bc5 Rh2 Bg1 Bg7 Bd7 c8R Be6 Rh6 Bh2 Rc2 Bc8 Rd2 Nh4+ Kh3 Qe8 Rb6 f3 Bf8 f2 Bg7 Nhg6 Kg2 Qg8 Kf3 Qh7 Ree2 Nh4+ Ke3 Qg8 Bh5 Qh7 Bf7 Kg4 Bh6 Qg6 Bd5 Bfe6 Bc4 Nef5+ Ke4 Ng7+ Ke5 Bf5 Kd5 Rg1 Ree6 f1N Kc6 Ne3 Bd5 Rf1 Bc4 Rf3 Bd5 Nc5 Ba2 Qf7 Re7 Nb3 Re5 Ra4 Nd7 Rb8 a8R Qh5 Raa5 Qg5 Rba6 Rbb4 Nb8 Qg6+ Kc7 Qc2+ Rc6 Qcd1 Rb6 Qe8 Kd6 Qg1 Kc7 Qde1 Kd6 Qh5 Kc6 Qg6+
8/rRR2K2/B1qb2nR/1Q3bBr/q1Np1r2/1Rpb1N2/2N3n1/n1qnBk2 w - - 0 1 illegal: No proof kernel
3rr2b/2b4r/R1Bn1NRn/BN3Q2/1p4b1/p3n1qN/K2qkNqR/1B1r4 w - - 0 1 illegal: No proof kernel
Nn2qb2/1n6/3bk1KN/pb1rBr2/2nQqqR1/r5p1/2BBb1R1/BR4N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 g5 Ke4 d5+ Ke5 f5 c4 a3 b4 d3 e4 d4 h4 a2 h5 d2 c5 g3 h6 g4 h7 g2 c6 f3 c7 g3 b5 d3 b6 f4 b7 f2 Qf3 d1B Qg4 f3 Rh2 d2 Nc3 Nh6 Rb1 a1Q Bc4 f1N Bd3 f2 Bc2 Qa4 Nce2 Nf5 Nd4 Bd7 c8R Bb5 Rc4 Nd6 Nf5+ Kf7 Qf4 Ne3 Nh6+ Ke7 Rcb4 f1Q Qg4 Rg8 h8B Bde2 Qf4 d1R Bd2 Qc8 Bg7 Kd7 Kf6 Nec4 Kg6 Ke6 e5 a6 Qe3 Qf4 Qd4 Rh8 Bf6 Rh7 Bh8 Rf7 Bg7 Rf5 Bh8 Nd7 b8B Nb7 Bc7 Nb8 Bg7 Ke7 e6 Ra7 Bce5 Qc6 Nf3 g1B Rg2 Qce4 Bh8 Bf2 Ng1 Be3 Qd3 Bb6 Qd4 Bc7 Bhg7 Bd6 Bgf6+ Ke8 e7 Kd7 e8N Ke6 Nc7+ Kd7 Na8 Ke6 Be1 Rd3 Bh8 a5 Bd2 Ra3 Qf2 Ra6 Ba1 Rc6 Qd4 Rcc5 Be5 Rd5 Rf1 Qfe3 Rf4 Q3f3 Rg4 Qff4 Rb1 Ba6 Be1 Qc6 Bb4 Bb5 Bd2 Qe8+
rRB2rN1/1B1q2q1/R3bpBK/Rrpb1qn1/2k2b2/2N4Q/3nr2n/B1N5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 e4 Kc5 g4 b5 a4 h5 a5 b3 e5 c3 g5 h3 a6 b2 d3 h2 a7 h4 e6 b4 Kg4 f3 g6 f6 g7 b3 Qc2 h3 Bf4 f2 Bh6 Nd7 Kh5 Bd6 e7 Nf8 e8B Qd7 Nf3 Ne6 Ng1 Bf4 Qd2 c2 Nc3 c1Q Nge2 b1R d4+ Kc4 d5 c5 d6 b2 Ra5 Ng5 Qe3 Qc2 Bg6 Re1 Ra6 b1R Nc1+ Re2 Bg2 f1N Bb7 Nd2 Ra5 Qc7 d7 Rb5 d8R Be6 Rb8 Qf5 Bc8 Qd7 Re1 h1B Qg3 h2 Qh3 Ne7 g8N Nc6 Rf1 Ne5 Rd1 Nde4 Rd6 Nef3 Rc6 Ned2 Rca6 Nh7+ Bg5 Bg2 Kh6 h1Q Rbb6 Nh2 Rb8 Bg3 Bf4 Qg1 Be5 Bgd5 Nd1 Qg2 Ba1 Be5 Nc3 Bc7 Ne7 Rf8 Ng8 Ng5 Rb7 Rb8 a8B Bf4 Rbb6 Qgg4 Bc6 Ra8 Rb8 Qe5 B6b7 Qgf5 Ra7 Qed6 R7a6 Q6e7 Rb6 Qf7 Rba6 Qg7+
2bbqR1N/3Q1pK1/8/2BRNBRn/Bqr1rrq1/3n3p/1bn2R1q/1N1k4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 g4 b5 d4 h5 a4 c3 g5 c4 e3 c2 a5 f3 a6 c3 g6 b3 g7 b4 a7 b2 Be2 b3 Bf1 f2 Bb5 f1R Ra6+ Nc6 Nd2 b1Q Ra3 b2 Ra5 h3 Ngf3 h2 Bd3 h4 Ne5 h3 d5+ Kd6 Rg1 h1Q+ Rg2 Qh2 Rf2 Nb4 Ng6 Rh7 Nh8 Be7 Qg4 Rb8 a8R Qe8 Qd1 Qa1 Nb1 Nf6+ Kd4 Qaa4 g8R Rh5 e4 Re5 Rg5 Bd8 Be3 c1B Qg4 c2 Qe6+ Kc7 d6+ Kb6 Rd5 Nh5 Qd7 Re6 e5 Rb7 Nd2 b1Q Bf5 Rc7 Ke4+ Rc5 Kd4 Qbb3 Nb1 Bb2+ Ke4 Re7 e6 c1N Rb8+ Ka5 Bd4 Nf4 Ke5 Nc2 Kf6 Ncd3 Kg7 Qb7 Ra8+ Kb4 Rb8 Rc3 Bc5+ Kb3 Ng6 Qf8+ Kf6 Bb6 Rfg2 Ne2 Nh8 Ncd4 Qc7 Kc2 d7 Kd1 d8N Nc2 Rd6 Nf4 Nc6 Bd7 Qc8 Re8 e7 Qe4 Rd4 Rc4 Re2 Rf3 Rf2 Ba5 Qc7 Qb4 Rd8 Bc8 Qd7 Rc3 Rd5 Qg8 Rh5 Qg4 Rg5 Bc7 Kg7 Nh5+ Kh6 Rc4 Kh7 Rg8 Re8 Rg6 Rf8 Re6 Kg8 Bd8 Kh7 Nf6+ Kg7 Qee5 e8B Rff4 Qb7 Re7 Qb5 Qe6 Qa4 Qd7 Qa7 Re2 Ne5 Ree4 Qb7 Qe7 Ba4 Qe8 Qd7 Nh5+
1Bn1Rq1K/1Q1qpk1N/q1B2rN1/1Rrnr3/1R2n2B/4p3/b3b1Rb/N1q5 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 b5 f4 d5 g4 h5 a4 h3 c4 h4 c5 h2 g5 d3 Ke3 h3 c6 d2 a5 b3 f5 b4 Kf4 b2 g6 b3 Kg5 d4 c7 d3 a6 Rh6 g7 Nf6 g8N Nc6 a7 Be6 c8R Bg7 Nf3 Kf7 Nh4 Qd6 Re8 Rc8 a8R Na7 Na3 b1N Nc2 b2 Rb8 Qa6 Rb4 Nc3 Rb1 Rc5 Na1 Ba2 Qb3+ Ncd5 Rg1 d1B Ng6 h1Q Rg2 d2 Bb5 h2 Bc6 Be2 Rb5 d1Q Bf4 e3 Bb8 Nc8 Qb4 Nh5 Nf6 Ng3 Nh7 Be5 f6 Qd2 Qe4 Qhc1 Rb4 h1Q Qf3 Ke6 f7 Bd6 f8B Ne4+ Kg4 Bc7 Bg7 Bh2 Bf6 Kf7 Kf5 Qd4 Bh4 Qdd3 Nf4 Re6 Ng6 Rf6+ Kg4 Qdb5 Kh5 Qbb7 Kh6 Qd7 Rb5 Qc3 Rd1 b1R Rd4 Qcc1 Rdb4 Rb2 Qg3 Rd2 Qc7 Rd1 Qa7 Rdf1 Qb7 R1f5 Nf8 Re5 Kh7 Qhf1 Kh8 Qf4 Nh7 Qg5 Rb1 Qh6 R1b4 Qf8+
N1nRBbBK/rr5r/1n6/2k3pr/1r3BRb/1bn3Q1/R1RN2p1/q2r3N w - - 0 1 illegal: No possible last move, all moves rejected
1B3N1b/Q3qb2/r1Bn1n1B/Rr3pN1/3b4/Rp2Rn1b/1b1b3N/1B3Krk w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 e4 Kf6 d4 Kg5 h3 Kh4 e5 Kg3 e6 f5 h4 c5 h5 b5 e7 g5 e8N b3 d5 f3 d6 b2 a5 b4 h6 c3 a6 f2+ Ke2 c4 a7 c2 d7 c3 h7 Ne7 Nh3 Rg8 h8B Bg7 Nd2 b1R Bg2 f1B+ Ke1 Be5 Bb2 c1B Ba3 c2 Bd5 Bcb2 Be6 Kg2 Ra2 c1B Bf7 g3 Nf6 g4 Nh7 Bb7 Qa4 Bd5 Be8 Bf7 Qa6 Nc8 Bg7 Qe7 d8R Nd6 Nf3 Nd7 Nh3g5 Nf6 Bh6 Rg6 Rh5 Rg7 Nh2 Kh1 Bc6+ g2 Rb8 g3 Rb5 Rg6 Rd5 g1B Nf8 g2 Rh3 Bgd4 Re3 g1N Ra5+ Nf3+ Kf2 Bd2 Qb7 Re8 a8B Bh3 Qa7 b3 Bb4 Rb8 R2a3 Rg1 Bc5 Rg2+ Kf1 Rb5 Be4 Nh7 Bb1 Bh8 Bc6 Re6 Bb6 Nf6 Bc7 Nc4 Bd7 Ra6 Bb8 Nd6 Bc6 Rg1+
2N2n2/r3p1n1/2rQnRB1/3bp1BB/1R2NbK1/1Rn3b1/b3N1Bn/k3qb2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 d5 f6 e5 fxe5 d6 cxd6 Qd2 d5 Qd1 d4 Ke2 Kf7 c4 Ke6 h4 g5 a4 b5 f4 d5 h5 b3 a5 b2 c5 b4 h6 d3+ Kf2 b3 Kg3 d2 c6 d4 h7 Kd5 c7 d3 f5 Kc4 a6 Nf6 a7 Ba6 c8B Bh6 Ra5 Nh5+ Kf2 g3+ Kf3 g2 f6 g4+ Ke4 g3 Kf5 Ng7+ Kg4 Ne6 f7 Bf4 f8N Nd7 Ng6 Ndf8 Qe1 d1B+ Kh3 Bf3 Ne2 g1B Nh4 d2 Rb5 d1N Ng6 g2 Qg3 Qd2 Nh4 Bd5 Kg4 Qe1 Nf5 Bf2 Rh3 g1N Bg2 Nf3 Nbc3 b1B Ne4 b2 Rb4+ Kd3 Bd7 Kc2 Nfd6 Bba2 Nc8 Kb1 Be8 Ka1 Bh5 b1N Qh4 B2g3 Qf6 Bb5 Bg6 Rg8 h8R Nbc3 R8h5 Rh8 Rf5 Rh6 Bh5 Ba6 Qg6 Bd3 Rf6 Ba6 Ng1 Bf1 Ne2 Ng7 Bd2 Nb5 Be3 Nbd4 Bc1 Rb8 a8B Nc3 Bc6 Rb7 Be8 Ra7 Bd2 Rh8 Qh6 Nde6 Beg6 Bh2 Bc1 Bfg3 Qd2 Rh6 Qd3 Bf4 Bd2 Bfg3 Bg5 Bf4 Qa6 Bhg3 Qd6 Bf2 Bf5 Nd8 Rd4 Nb5 Qc5 Ng1 Rb3 Nc3 Ra6 B2g3 Rdb4 Nf3 Rc6 Rd6 Bfg6 Rf6 Rc7 Rfa6 Rc6 Rb6 Rf6 Nde6 Qc7 Rc6 Qd6 Nh2+
2bn1R2/1BNp4/nN3N1b/q1BNR3/Rb3Qr1/1n1k1n1r/np1bbK2/7B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 c4 Kd6 a4 Kc5 h4 b5 h5 g5 h6 f5 a5 d3 a6 Kd4 e5 d2+ Kf2 g3+ Kf3 g2 a7 b3 h7 g4+ Ke2 b2 c5 f3+ Kf2 f4 c6 b4 e6 b3 e7 Na6 e8N Qa5 c7 Bb4 Nf6 Ne7 Ng8 Nc6 Qc2 d1B Ra4 Nd8 Nh6 Be2 Qc6 Kd3 Na3 b1N Qb7 b2 Bd2 Nc3 Nb5 Na2 Qb8 Rg8 h8R g3+ Ke1 Rg4 Nh3 g1B Bg2 Bb6 Ng8 Be3 Bc3 Bc1 Nf6 Be3 Rf1 Bc1 Bh1 g2 Rh4 g1B Rh5 Bge3 Re5 Bed2+ Kf2 Rg6 Qb6 Rg4 Bd4 Rb8 Qd6 Rb6 a8B Rc6 Qf8 Rc3 Bc5 Ra3 Bb7 Rb3 Bg2 Ra3 Kg1 f2+ Kh1 f3 Nf4+ Kc4 N4d5 Kd3 Qf7 Bh6 Kh2 Bcd2 Bh1 Rc3 Ne8 Rb3 Qf4 Rc3 Nef6 Rb3 Rb1 f1N+ Kh3 Nh2 Rf1 Rh4+ Kg3 f2 Rb1 f1N+ Kf2 Nf3 Re1 Nd4 Re8 Nh2 Rf8 Bf1 Re2 Nhf3 Re5 Be2 Bc6 Bb7 c8N Rg4 Ncb6 Bc8 Nbc7 Rc3 Ba8 Nb3 Bb7 Rg3 Rh8 Rh3 Rf8 Rc4 Qg3 Rch4 Qf4 Rg4
N4K2/1b1B1R1R/NB1N4/1B1nkq2/3pn1r1/4rn1r/q1rp1r2/1NRQr1b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Ba3 d3 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 f5+ Kd4 d5 c4 b5 e4 h3 g5 f3 g6 f2 e5 f4 g7 b3 c5 b4 c6 b2 c7 b3 Nc3 b1R Qf3 d2 Bd3 f1N Bb2 h2 a4 h4 a5 h3 a6 Rc1 a7 Bb7 c8N Rh4 Bg6 Qg5 Qd1 f3+ Be4 f2 Na2 Ne3 Bc3 f1R Ne2 b2 Nb4 Rc2 Rc1 Nf6 g8R b1Q Rg7 Qf5 Rf7 Nbd7 Ba1 Bd6 Nc3 Qa2 Nb1 Rf2 Bc3 Rg4 Bb2 Rg5 Bd3 Ne4 Bb5 Rg4 Bc3 Ng2 Ba1 Ne1 Bc3 Nb6 Ba1 Rc3 Na6 Re3 Bc3 Bb8 Ba5 Bc7 Ne7 Rc8 a8N Nd7 Bb6 Ndf6 Nb4 Bd6 Na6 Rc2 Nc8 Bb8 Rg1 h1R Rf1 Nc3+ Kc5 h2 Rg1 d4 Rg3 Rg2 Rh3 Nf3 Rhh7 Rf2 Qe2 Qg5 Qd1 Kf5 e6 Rhe1 e7 h1R e8B Rh3 Bec6 Bh2 Bd7+ Kf4+ Kd6 Ne4+ Ke7 Ke5 Nd6 Qf5 Kf8 Nd5 Rh8 Bg1 Rh5 Qa5 Rh7 Qa2
5RN1/1B2rr2/qqb1p3/B2b1bR1/2pkBNb1/2Nb1n1n/K4b1N/3nQ2R w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 Kd2 Kf6 Kc2 h5 Kb2 c5 g4 b5 f4 e3 a4 e2 f5 e1Q d5 Ke5 d6 h3 a5 h4 a6 b3 g5 c3+ Ka3 b2 a7 h2 g6 c4 f6 b4+ Ka2 b3+ Ka3 h3 g7 c2 d7 Rh7 f7 Nc6 Nd2 b1B Qh5+ Kd4 Qf5 b2 Qe6 Qb6 d8N Ne5 Nb7 Nf3 Qg6 Bg4 Qf5 e6+ Nc5 Re8 a8B Nh6 g8N Re7 Qh5 Nf5 Nh6 Ne3 Nce4 Nd1 Nc3 Qg3 Qb5 Qgd6+ Qb4 Bg7 f8R Be5 Bc6 Bg3 Bd3 Bf2 Ra2 Rhf7 Bb7 Qdc6 Nf1 Qc8 Bg5 c1N Bg6 Bbf5 Bd2 b1B Ng8 Ne2 Rc2 Bd3 Bge4 Nf4 Rb2 Bbc2 Ka2 Qa8+ Qa5 Qaa7 Rb5 Qaa6 Bec6 Bdf5 Re5 Bfd3 Rg5 Bdf5 Bd5 Bcd3 Nge2+ Ke5 Rg1 h1B Be1 Bg2 Rh1 h2 Bd2 Nh3 Nf4 Kd4 Be4 Bc2 Rg1 h1B Nh2 Ba4 Qb4 Bf1 Qb1 Bhg2 Rh1 Bd3 Qa1 Nb2 Qe1 Nd1 Nb1 Bb5+ Ba5 Bc6 Nc3 Bdf1 Bc2 B1d3 Bb1 Ne5 Bc2 Bgd5 Bb1 Nf3 Bc2 Be2 Be4 Bd3
3Rb3/nQ1BpK1p/1b2rR2/k1n2Nb1/2q2B2/Bn2n2N/1r2b2R/bN4rR w - - 0 1 illegal: No possible last move
r2k2n1/Rn4q1/1KbnbR1R/2n3r1/R1b1B3/2pBN1nq/Q2B2pb/2N3N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 d4 f5 e4 g5 a4 f3 Ke3 c3 e5 g3 a5 f2 d5 b3 h5 b4 h6 g2 h7 f4+ Kd3 c2 Kc4 b2 Kb5 g4 a6 g3 d6 f3 e6 c4 a7 b3 e7 c3 Qd3 Qd7+ Kb6 Qh3 Qa6 Nd7+ Kc6 Nc5 Kb6 Nb7 Be2 f1B Ra2 f2 Qa3 Be6 Ba6 Bfc4 Bd2 f1N Ra1 c1N Qa2 Kd7 e8N Kd8 d7 Bd6 Nf6 Nd3 Nd5 Ndc5 Ne3 Bf4 Bc1 Be5 Nd2 b1B Bb5 b2 Nb3 Bg6 Bd2 b1N Nc1 Na3 Rh2 Bgf7 Rh1 Bcd5 Bd3 Nb5 Rh2 N5d6 Rh1 Qh5 Rh4 Bc6 Re4 Qh3 Ra4 Rb8 a8B Bc4 Nge2 g1Q Ra7 Qgg2 Ng1 Bfe6 Ra4 Ne7 Ra7 Rg8 h8R Rc8 Rh7 Rg5 Rh6 Ng8 Rf6 Qe2 Ra4 g2 Ra7 Bh2 Ra4 Ke7 d8R Ng3 Rdf8 Qf1 Rh6 Qf6 Ra7 Qg7 Rff6 Kd8 Ra4 Na5 Bb7 B6b5 Bbe4 Ra8 Qb1 Bbd7 R1a3 Be8 Qa2 Nab7 Ra7 B8d7 R3a4 Bc6
BNq2n1r/1b3Q2/4B3/R2pn1N1/prR1rbr1/Kn2B3/4B1r1/kn2q1NR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 Kd6 c4 Ke5 Kc2 h5 Kb2 a5 g4 d5 e4 f5 c5 f3 b5 d3 c6 Kd4 b6 f4 g5 d2 c7 a3+ Ka2 a4 g6 h3 g7 f2 e5 h2 e6 h4 b7 h3 e7 f3 e8R Nh6 g8B Nf7 Qe1 d1N Qe2 Nd7 b8N Nfe5 Qa6 Bh6 Bb5 f1R Bd3 f2 Nc3 Re1 Nb1 f1Q Bf4 Bb7 c8B Nf8 Nd7 Rb8 Qg6 Re4 Bg5 Qe1 Nd2 Kc3 Be7 Bf4 Bf6 Rh4 Re7 Rg4 Bg5 Qe8 Be6 Rg2 Kb1 a2+ Kc1 Qd8 Qf7 Qe8 Rb1 a1N Rb4 Nb3+ Kb1 Qd8 Ka2 Qe8 Bc4 Kc2 Ba6 Nc3+ Ka3 Rg4 Ndf3 Kb1 Be2 Ka1 Rc4 Qd8 Nc5 Qc7 Bcd7 Qc8 Na6 Rg2 Bh6 Rg4 Ng5 Rg2 N1f3 Rg4 Bc6 Rg2 Rf1 h1R Ng1 Rg4 Rc7 Rh2 Rc5 Rhg2 Ra5 Qd1 Re1 h2 Rf1 h1R Re1 Ra8 Nb8 Ra6 Rf1 Rb6 Re1 Rbb4 Rf1 Ba6 Ba8 Bb7 Rc4 Rhh2 N1h3 Qb1 Rh1 Qe1 Ng1 Rh5 Bg7 Rh8 Bf6 Nc6 Bd4 Ne5 Be3 Nb1#
8/qN1brNBB/bqNp2B1/2Rq1nb1/1b2k1K1/B1Q1r3/R3np2/1q2R1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 e4 Ke5 a4 b5 c4 f5 a5 g5 h5 d3 c5 g3+ Kf3 g4+ Kg2 b3 h6 d2 h7 b2 a6 b4 a7 b3 c6 Qc7 Bb5 f3+ Kf1 f2 Kg2 f4 Ba4 Nh6 Ra2 Nf5 Nc3 b1Q Nh3 b2 Nd5 Bb4 Qe1 d1Q Bc2 Re8 Ng5 Re7 Nf7+ Kd4 e5 d6 h8B Bd7 Bg7 Qa5 c7 Nc6 Nf6 Rae8 a8R Qa7 c8N Qd3 e6 f1B+ Kg1 f3 Ne4+ Kd5+ Nc5 g2 Kf2 Ncd4 Qc3 Ne2 Rb8 Qd1 Rb6 Qd3 Nb7 Ke4 Rh5 Qa3 Na7 g1Q+ Ke1 g3 Nc6 g2 Rg5 Nh6 Rc5 Qa7 Rba6 Nf5 Ra1 Qe3 R6a2 Qg5 Kf2 g1B+ Ke1 Bh2 Kf2 Bf4 Bd2 Qd1 Bc1 b1Q Ba3 Qb2 Rb1 Qg4 Rc1 Bg5 Bb1 Qdb3 Re1 Qd5 Bc2 Kf4 Bb1 Qb5 Bd3 Qb1 Be4 Qbb6 Bc2 Nh4 Bh7 Nf5 Rd1 Ng1 Ncd8 Ba6 Nh6 Ne2 Nc6 Rf7 e7 Rf6 Nf7 Re6 Re1 Re3 Nfd8 Rf8 e8B Ke4 Beg6 Re8 Nf7 Re7 Kf1 Ng3+ Kg1 Ne2+ Kh2 Qg1+ Kh3 Qf1+ Kg4 f2 Qf6 Qh1 Qc3 Qg1+
3RQKBN/k4np1/5qq1/1BrNN3/3R1r1B/1b1nr1nR/3p2rb/N3n2r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 h4 Kd7 a4 Kc7 c4 Kb6 e4 f5 c5+ Ka7 e5 b5 a5 f3 Kg3 f4+ Kf2 d3 e6 g3+ Ke1 f2+ Kd2 b3 Kc3 g2 Kd4 b2 Ke5 d4 e7 b4 e8R b3 c6 f3 a6 d2 h5 d3 h6 Bd6+ Kd5 Qf6 c7 Nd7 h7 Nc5 Ra5 Bh2 Be2 f1N Qe1 d1N Rd8 f2 Na3 b1R Nf3 g1R Nc2 b2 Bg5 d2 Ra4 Ng3 Ne5 f1R Bh4 Rf4 Bb5 Rg2 Rd4 Nh6 Na1 Be6+ Kd6 Nf2 c8B Bb3+ Be6 Re8 h8N Ncd3 Kd7 Rd1 Bg8 b1Q Qe2 Re6 Qe4 Rc6 Ke8 Nf7 Kf8 Rc5 Qc6 Ne1 Qe8 Kb6 a7 Qbg6 Bh7 Rb8 a8N+ Ka7 Bg8 Nfd3 Nb6 Rb7 Nd5 Re7 Nc4 Re3 Ne5 Bg1 Rh3 Bh2 Nd7 Nf3 Ne5 Rh1 Bd7 Nfe1 Ba4 Qgf5 Bb5 Q5g6
1NKb1b1n/2N2pk1/B3Qb1n/5R2/rbN2p2/4qB2/Rn1Bb1r1/qRn4N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 e4 b5 d4 g5 a4 g3+ Kf3 c3 h4 c2 e5 c4 Ke4 c3 e6 b3 Kf5 b4 d5 b2 a5 g4 d6 g2 h5 g3 h6 b3 h7 Nc6 a6 Ne5 a7 Qb6 Ne2 g1B Rh4 g2 Rh2 Qe3 Nd2 b1Q Qe1 b2 Rh1 Nh6+ Kf6 Rg8 h8R Ba6 e7 Ng6 Ra2 Qa1 Nc4 b1N Ng3 Na3 Bd2 c1N Rh5 Bf2 Rf5 g1B Nh1 Bg3 Qe2 Be1 Rh7 Nh8 Qg4 Rb8 a8B Rb4 Bf3 Ra4 Qh3 Bb5 Rg7 Bgf2 Rg1 Rg2 Qg4 Qe4 Bd3 Bb6 Bde2 Qe3 Bd3 Kd7 e8N Kd8 d7 c2+ Ne5 Ba5 Nc7 Nc4 Rf1 Nb2 Nc4 Qa7 Ke5 Ke7 d8N Qe3+ Kd5 Ba6 Kc6 Bb4 Rg1 Bh4 Qh3 Bb5+ Kb7 Bf6 Kc8 Bg5 Re5+ Kf6 Nc6 Kg7 Nb8 Bge7 Qe6 Bd8 Na3 Bc4 Bf1 Be2 Nc4 Nb3 Rb5 c1B Rf5 Nd3 Qd7 Bb2 Qe8 Bbf6 Qe6 Bd1 B1e2 Nb2 Bd3 Be2 Rb1 Nd4 Na3 Nb3 Ba6 Nc1 Nc4 Qd3 Ra5 Qc3 Rf5 Qe3
2KBNN2/1Qrn1bq1/2nN1n1k/2b5/q1BnbrR1/R2Rr2p/3B1p2/b3R3 w - - 0 1 illegal: No possible last move
qR6/1q3N1n/B5Rp/k1bn2B1/NrR1Bnpq/1b4b1/QRK2nN1/3r1b2 w - - 0 1 illegal: No possible last move
R4r2/Q2Nbr1k/R1B1p1n1/1Nb5/q5pB/1Nr1RBKb/3n3n/1b3qNr w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 Kg6 f4 b5 Kf2 d5 c4 b3 c5 e3+ Kg2 g3 h5+ Kh7 a5 g5 h6 b2 a6 d3 c6 d2 c7 e2 f5 e1Q f6 b4 f7 d4 a7 d3 Qb3 d1R Qe6 b3 Qh3 d2 Bc4 Nc6 Qg4 Qe8 Qe6 Ne5 Nc3 b1B Be2 b2 Qd7 Ng4 Na2 Nh2 Bf3 Qe2+ Kh3 g2 Kg3 Rf1 Qd4 Bh3 c8N d1R Nd6 g4 Nb5 e6 Bg5 Qd3 Bh4 Ne7 Nc1 Rc8 a8B Ng6 Ra6 Rc3 Nb3 Be7 Bc6 Rf8 Qa7 Rdc1 Ne2 Rf2 Re1 Qed7 Ng1 Qf1 Re3 Qd4 Qb6 Qa4 Qa5 Bc2 Qb6 b1N Qb8 Nd2 Qa7 Kh8 h7 Bb1 Be2 Kg7 h8R Rf6 Rg8+ Kh7 Bef3 Rd8 Ne2 g1B Rf8 Rd7 Ra8 Rd1 Rd3 Be3 Ng1 B3c5 Re3 Rd8 Bfd5 Re1 Bf3 Rf8 Bg5 Qd3 Ne2 Rh8 Bh4 Rh1 Ng1 Qf1 f8N+ Kg7 Re5 Rf7 Nd7 Rhf8 Re3 Kh7
1brRnqB1/b3k1q1/2npN3/1B2R2n/4N1b1/1prb1n2/1B1NK1Qq/1R2R3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 f5 h4 g5 a4 b5 c4 f3 e5 f2+ Kd2 b3 h5 d3 h6 f4 c5 g3 c6 f3 a5 b2 e6 g2 a6 g4 c7 b4 e7 b3 h7 g3 a7 Nc6 Rh5 Nf6 Na3 b1Q Ne2 g1Q Nc2 g2 Raa5 Qh2 Rad5 g1B Nf4 Qb2 Ke3 d2 Qe2 d1B Ne1 Bc2 Rde5 Kf7 e8R Bd6 R8e6 Qf8 Re8 Rg8 h8R Rg3 Ne6 Rh3 Rd8 Ne8 Rhg5 Qa1 Bb2 Ke7 Kd2 Rb8 a8B Qa7 Qe4 Qb7 Bb5 f1N+ Kc1 f2 Qg2 Nd2 Nf3 f1N Re1 Bf2 Rge5 Ng3 Rh6 Ba7 Rf6 Bf5 Kd1 Nh5 Ke2 Bc2 Rf4 Rg3 Ra4 Rh3 Raa1 Rg3 Rab1 Rh3 Nfg5 Rc3 Ne4 Nf3 Nd2 Qb6 Bb7 Qd4 Rf5 Qdg7 Re5 Ra8 B7a6 Bb8 Bc4 Bc5 Bab5 Bd4 Bd3 Bda7 Bh7 Ba6 Bg8 d6 c8N+ Kf6 Ne7 Bc8 Nf5 Bd7 Ng3 Ke7 Nge4 Bc8 Nd4+ Be6 Rc5 Bg4 Rf5 Bc7 Ne6 Rc8 Rg5 Bcb8 Re5 Bd3+
rnNn1Nbb/5p2/1N1q1R2/2p1bRq1/nR1N1n2/7K/Bb3QrB/2kqB3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 e4 Ke5 h4 Kd4 a4 b5 h5 c5 d3 g5 e5 b3 h6 g3 e6 b4 e7 b2 e8N c3 h7 c2 a5 b3 a6 g4 a7 Bd6 Rh3 f3+ Kh1 f2 Kg2 Ne7 Bh6 c1B Bd2 Be5 Qc2 Rg8 h8B Qd6 Rh6 Nec6 Rf6 Nd8 Na3 b1Q Nc4 b2 Be1 Bf5 Nb6 Ke3 d4 Bh7 Bc4 f1N d5 Rg7 Ra2 Bg8 Nf3 Qa1 Ra4 b1N Rf5 Nc3 Rb4 Na4 Ba2 Bcb2 Nd4 Qd1 Qf2+ Kd3 Nc7 Rg5 Nce6 Ne3+ Kh1 Rg7 Nf8 Ng2 Nc8 Nf4 Rf6 g2+ Kh2 g1B+ Kg3 Qc7 d6 Bh2+ Kh4 g3 d7 g2 Rf5 g1Q Rf6 Ndc6 d8R Rg2 Rd5 Qd6 Bg7 Nd8 Bh6 Nfe6 Kh3 Bhf4 Bg5 Bd2 Bf4 Bdc3 Ne2+ Kc2 Bh2 Qc6 Nd4+ Kc1 Rf5 Bh8 Rf6 Qd6 Rdf5 Nf4+ Kh4 Qc7 Nd6 Rg7 N4b5 Be5 Nd4 Qg6 Nc8 Qd6 Ne7 Nh5 Kh3 Qh6 Nb5 Rg2 Nd4 Qg5 Bg3 Nd7 Bh2 Rc8 a8N Rb8 Nb6 Ra8 Nec8 Nb8 Qg3 Ra7 Qf3 Ra8 Qf2 Nf4+
B1k1N3/Kp2qRr1/2b4N/3p1r2/1BN1n3/1Rbq1BB1/r3nb2/qQ2q1rR w - - 0 1 illegal: No possible last move
br2N3/1nK1B3/r2pqn1n/2b1R2B/NnBNQ2R/3Np3/2bbR3/3n1nk1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 a4 Kh5 f4 Kg4 c5 Kg3 f5 b5 f6 h5 f7 e5 a5 d3+ Ke3 h3 a6 d2 a7 h4 c6 b3 c7 b2 Bd3 b4 Qa4 d1N+ Kd2 Kf2 g4 h2 g5 b3 g6 h3 g7 Nh6 g8B Na6 Bb5 e3+ Kd3 e4+ Kd4 e2 Kd5 e1B Qb4 e3 Ra3 Qf6 Qe7 Nc5 Qe4 Bd2 Ra5 Nb7 Nf3 Bc5 Nc3 b1B f8N b2 Ng6 Bc2 Bf7 b1N Na4 Na3 Nd4 d6 Kc6 Rg8 Ne5 Qe6 Bh5 Re8 Re1 h1N Bb2 h2 Re2+ Kg1 Bc4 Ng3 Nd3 h1N Ba1 Rb8 a8N Nf1 Bb2 Nhf2 Ba1 Bcb4 Re5 Nfg4 Kb6 Bd7 c8R Bc6 Nc7 Nf6 Bc3 Rg8 Ne8 Bc5+ Kc7 Ra8 Rd8 Ra6 Rd7 Rh8 Rh7 Rg8 Ng7 Rb8 Ne8 Nb1 Ba5 Nbc3 Rh8 Na2 Rh7 Bc1 Be1 Bd2 Bh4 Nb4 Rh8 Nfg8 Be7 Nf6 Bg6 Nf7 Rh4 Nh6 Bf7 Na5 Bg6 Ba8 Bh5 Nb7
q2B3k/1pBbR3/1bn5/1bN1N1N1/2rR4/1B1rpn2/1QbN1rr1/r2R1r1K w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 a4 Kf7 g4 Kg7 c4 e5 f4 h5 Kf2 d5 Kg2 d3 c5 d4 f5 h3+ Kh2 h4 g5 b3 g6 e3 a5 d2 c6 b2 a6 e2 c7 e1R a7 d3 Nc3 b1B Be2 e4 Ra4 e3 Bh5 Nf6 Nf3 Ne4 Qc2 d1B Bd2 Rg1 Ng5 Be2 Qb2 Nf2 Rd4 Bc2 Nb1 Nc6 Ba5 Bc5 Nd2 Bd7 c8N Bb6 Ne7 Rf8 f6+ Kh8 f7 Rc8 a8R Rc7 Ra6 Qa8 Bg4 Ra1 Rd1 Rg8 Kg1 h2+ Kg2 h1R f8B Ra2 Be6 Nh3 Bb3 Rf1 Kh2 Ng1 Kh1 h3 Bh6 Ne5 Nc6 h2 Bf8 Rf2 Be7 Ra1 Bd8 Bf1 Nb8 Rc4 Nc6 Rg2 Bc7 Rf8 Bd8 Rff2 Bc7 Nf7 Ne5 Nd8 g7+ Kg8 Nde4 d2 Nc5 Nc6 Bd8 Ba7 Bac7 Bb6 Nge6 Kh7 g8N Kh8 Nf6 Bfd3 Ng5 Bf1 Re1 d1R Nfe4 Rd3 Nd2 Rg3 Ra5 Re2 Nce6 Rb4 Nef3 Rc3 Re5 Rg4 Nde4 Rd2 Rb1 Bb5 N6c5 Rbc4 Re7 Rcd3 Rd1 Re2 Ne5 Rf4 Re1 Rf1 Nd2 Ref2 Rd5 Rf7 Kg2 h1R Rd4 Rh4 Nge6 Rg4+ Kh1 R7f2 Ng5 Rgg2 Rd1 Nf3+
R4nQ1/N4q1p/br1Rb1Bn/2Bq3R/N1pBq3/6r1/p1n2r1b/3RK1Nk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 e4 Kd7 d4 Ke6 g4 f5 b4 c5 b5 a5 d5+ Ke5 g5 f3 b6 f2+ Kd2 Kf4 d6 Kg3 b7 h3 d7 c3+ Ke2 c2 e5 a3 e6 f4 g6 f3+ Kd2 a4 e7 a2 e8N h2 g7 a3 Nh3 Nh6 Bb5 Kg2 Nc3 f1B Nf6 f2 Nb1 Ra6 Bd3 Bd6 Qh5 Rg8 Bg6 Rb6 Nd5 Ba6 Nb4 f1N+ Ke1 c4 Nc3 Ne3 Bb2 c1Q+ Qd1 Qf8 d8R Qb1 Nc6 Qf7 Na7 Be6 Ng1 Nd7 b8B Nf8 Na4 Qe4 Qd5 Bc7 Rb1 a1R Rd6 Ra2 Bd4 Rf2 Rd1 a2 Rc6 Be5 Bd6 Bg3 B6c5 Bf4 Rd6 Be5 Nh3 Bg3 Rf1 h1Q Ng1 Bh2 Qa8 Rd2 Rf5 Rf2 Rh5 Qd5 Qb7 Kg3 Qd7 Qhe4 Qc8 Kg2 Qd8 Rh8 g8R Kh1 Rg7 Rg8 Qg5 Qfb7 Rc7 Rg7 Rc8 Qf7 Ra8 Rg8 Qd8 Rg7 Bf5 Rg3 Bg6 Nd7 Qh8 Nf8 Qg8 Nc2#
1Q1Bb1r1/Nb2KN2/n2p4/b2bq3/2Rqk3/1Bq1N3/r1bp1Rpn/1RN4B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 e4 Ke5 a4 b5 c4 f5 a5 g5 h5 d3 c5 g3+ Kf3 g4+ Kg2 b3 h6 d2 h7 b2 a6 b4 a7 b3 c6 Qc7 Bb5 Bb4 Qc2 Nh6 Na3 b1Q Ra2 b2 Qb3 Bb7 Ba4 Na6 Nc2 Rhg8 h8N Qa1 Ne2 b1B Ne3 Ba5 Rh4 Qb8 c7 Qc3 c8N Bc2 Qb5+ Bd5 Bb3 Qbc7 Qb8 f3+ Kh1 g2+ Kh2 f2 Kg3 f1B Nf7+ Ke6+ e5 g1Q+ Kf4 g3 Bb2 Ng4 Nc1 Bb5 Ra1 d6 Rb1 Be8 Rh2 Qe1 Rf2 Nh2 Ba1 Qb4+ Bd4 Qbc3 Bb6 Q7c5 Bd8 Rh8 Kg5 f4 Ra1 f3 Ra4 Q5d4 Rc4 Kd7 Kf6 Rg8 Ra4 Kc6 Ke7 Kc5 e6 Qe2 Ra1 Qe1 Rb1 Bb7 Nc4 Kd5 Ne3+ Ke4 Qc7 Rb8 a8B Bd5 Bc6 Ra8 Qb8 Qe2 Na7 Qe1 Rg2 f2 Bb7 f1B Rf2 Bfb5 Bc8 Bec6 Qc7 Rb8 Ra1 Qdd3 Nd1 Kd4 Kf6 Qee3 e7 Be6 e8R Bh3 Bbe6 Bhg2 Rb1 Rb6 Bcd7 Bb7 Qb8 B5c6 Re7 Rb2 Bb3 Ra2 Re6 Ba4 Bc6 Bh1 Bf3 Be8 Ke7 Qee4 Ne3 Qf4 Bg4 Bhd5 Bf3 Qdc4 Bh1 g2 Ne2+ Kd3 Re4 Qf5 Rh4 Qc5 Rb4 Q5d4 Rc4 Ke4 Nc1 Qe5+
bbb1k3/p1BnBb2/1B3r1Q/8/2p1q3/qN3RNn/2bpRrKN/4R1nB w - - 0 1 illegal: No proof kernel
4qq2/1n3n1k/K2Q1b2/1r4p1/Rb3pNq/B1rN1p1b/B4B1R/1R1N1nqB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 Kd3 g5 h4 b5 a4 f5 c4 Kf7 e4 Kg7 e5 b3 h5 b4 h6+ Kh7 e6 g3 c5 f3 a5 f4 e7 g2 e8R b2 a6 b3 c6 Bb4 a7 Nd7 c7 Rb8 a8N Rb5 Re4 Qe8 Nc3 b1N Rh4 b2 Nge2 g1B Bg2 Nd2 Rh2 Nf1 Bh1 Be3 Nb6 b1Q+ Qc2 Qa2 Rb1 Qa3 Qd1 Qa8 Ba3 Nc5+ Kc2 Qb8 Nc4 Nb7 Kb3 d3 Ka4 d4 Nc1 d2 Ne5 Bh3 c8B d3 Be6 Bd4 Ng4 Bf6 Ba2 Qf8 Rc4 Qbe8 Rd4 Kg6 h7 Nh6 Rc4 Nf7 Rd4 Rg8 h8B Kh7 Rc4 Bd8 Be5 Bf6 Bd4 Rg6 Bf2 Rh6 Qb3 d1Q Rd4 d2 Nd3 Qc1 Qe6 Qe1 Nd1 Rg6 Qd6 Rg7 Bg1 Qh4 Re4 Nh6 Rd4 Rc7 Bf2 Nf7 Re4 Rc6 Rc4 Rbc5 Re4 Rc3 Kb5 R6c5+ Ka6 Rb5 Nde3 d1Q Rc4 Qe1 Nd1 Ne3 Re4 Qg1 Rc4 Nf1 Rd4 Ba5 Ra4 Bb4
3nRN2/4b2r/2n3bq/Bpr5/K2bb1n1/NRRBp2Q/2p1r2N/B1k3Nq w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Kd6 a4 Kd5 d4 c5 Kd2 h5 Kc2 e5 g5 e3 a5 Ke4 g6 b3+ Kb2 c3+ Ka3 e2 d5 e1R a6 c4+ d6 b2 a7 c2 g7 b6 f5 h3 f6 h4 f7 h2 Kb4 c3 Na3 b1B Nb5 h3 Na3 Nh6 g8N Rh7 Ra2 Re2 Bf4 c1B Bg3 Ke3 Qa4 e4 Qc2 Nc6+ Ka4 Be7 f8N Bf5 d7 Bg6 Nf6 Nf7 Bd6 Rc8 a8R Bb2 Qb3 Kd2 Qe6 e3 Ng4 Bbe4 Bb4 Kc1 Ba5 c2 Rb8 Qe8 d8B Bd4 Rb2 Qd7 Rb3 Qd6 Rc3 Qf4 Bc7 Qh6 Be5 Rc7 Re8 Nfd8 Nf3 Rc8 Rg1 h1N Ngh2 Nf2 Qf5 Re1 Bd3 Ng4 Rf1 Rc7 Ng1 Rc8 Rf4 Re2 Qh5 Rc7 Rf5 Rc8 Bf6 Rc7 Rb5 Rc8 Rbb3 Rc7 Nf1 h2 Qh3 h1Q Nh2 Nb4 Bg7 Rc5 Be5 Nbc6 Bc7 Bh8 Be5 Bhf6 Rc4 Bg7 Ba1 Bd4 Rcc3 b5+
4bkBr/2B2r2/1N3nb1/bpRQ3r/3pR1q1/1pB2Nb1/N1qKn3/1BR4q w - - 0 1 illegal: No possible last move, all moves rejected
5Bqr/1R2n1n1/K4p1k/1NB2qq1/NRR3rp/pbb3r1/4Q1q1/1B1N1n1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 d5 Kd3 a5 g4 h5 c4 f3 e4 f2 b4 h3 e5 f6 c5 Kf7 b5 Kg6 c6 h4 g5 h2 b6 a3 c7 a2 e6 a4 e7 a3 e8R Be6 c8N Nc6 b7 Ra4 b8B Nge7 Qe2 Nf5 Be3 Ng7 Bd6 Ne7 Na7 Bg8 Bh3 f1N Nc3 Rb4 Rc1 a1Q Nab5 Qb1+ Rc2 Qc8 Bg2 Qf5+ Be4 Qa2 Nh3 Be6 Rg1 h1Q Rb8 Qg2 Rh1 Rb3 Bg1 Kh7 g6+ Kh6 Rb7 Qgg5 Qf3 Bg8 Rc1 Qag2 Qe2 Rb4 Na4 Be6 Kc2 d3+ Kc3 d2 Nf2 d1Q Bb1 Rg4 Rc2 d4+ Kb4 d3+ Ka5 d2 Ka6 Qe1 Nd1 Bb3 Bgc5 Qef2 Rc4 Qfg3 Ndc3 d1R Rb4 Rd5 Nd1 Rd3 Rc4 Ne6 g7 Re3 g8R Ng7 Bf4 Rd3 Bfe3 Qb8 Bd6 Qbc8 Bec5 Rdg3 Rb4 Nh5 Rg7 Qce6 Rc4 Qg8 Rf7 Ng7 Rb4 Nc8 Rfc7 Be7 Rc6 Bd8 Bf8 Ba5 Ba7 Ne7 Rcc4 Bc7 Bg1 Be5 Bc5 Bc3
r2n1r1R/B3nnbq/2pNp1b1/R1Q4b/7K/1r3r1B/R1q3p1/N1k1NN1B w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 Kf7 Kf2 Kf6 Kg3 Kf5 h4 g5 a4 b5 d4 c3 a5 e3 h5 Ke4 a6 c2 a7 b3 h6 b4 f5 b2 d5 e2 d6 e1R h7 b3 f6 Re3+ Nf3 Qd7 f7 Bg7 f8N Nc6 Ra5 Nd8 Bh3 c6 Qg1 Kd3 Bd2 c1Q Rh2 Kc2 Bg2 e6 Bh1 Ba6 Bc3+ Be2 Nd2 b1B Bd4 b2 Nf1 Qb7 Nd7 Ne7 Nc5 Rf8 h8R Qd1 d7 Kc1 Rf2 Bg6 Rg2 b1R Nb3+ Kc2 Na1+ Kc1 Rgh2 Qc2 Bb6 Rc3 Qc5 Rbb3 Rf2 Bh5 Rh2 Bd3 Rg2 Bdg6 Rd2 Nf7 d8N Qd7 Nb7 Nd8 Nd6 Re3 Kh2 g3+ Kh3 g4+ Kh4 g2 Ne1 g1N Rf2 g3 Rd2 Rc8 a8B Nh3 Bb7 Ra8 Ba6 Ng5 Ba7 Ngf7 Bd3 g2 Bf5 Rf3 Bh3 Qc3 Rda2 Qc2 Nb7 Qd2 Nd6 Qh6 Qf5 Qh7 Qb5 Rc8 Qc5 Ra8
1BKN2b1/2Q5/1p2R3/2B1rnNr/b1B3qq/2nBbpRn/pk3n2/1rN2R2 w - - 0 1 illegal: No proof kernel
4k2N/3b1Rp1/1K3r2/B1QR2B1/pb1Nnn2/Bq2rq2/1Nbb1R1p/r2q1B2 w - - 0 1 illegal: No proof kernel
1N1KR1Rr/3q1bp1/2BrNR2/2p2r2/4R1Nq/B1n1b1Qb/5q1p/1nb3Bk w - - 0 1 illegal: No possible last move, all moves rejected
1QNqn1r1/2NpbK2/2N3B1/R4RrN/pqB3pB/n1qr1R2/bq6/k6n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 g5 e4+ d3 h4 a5 h5 f5 b5 f3 c3 g3 b6 f2 b7 a3 h6 f4 h7 f3 Be2 f1N Bd2 g4 Nh3 g2 Rg1 a4 Bg5 a2 Nf4 f2 Bh4 Ng3 Nh5 Nh1 Rf1 Na6 b8N g1Q Nc6 Bb7 Qe1 Kb3 c4 Kb2 c5 d2 Na3 d1R Bc4 Nc7 Nb5 Rd3 Qb4+ Rb3 Kf5 Nf6 Kg6 Rg8+ Kf7 Ra5 h8R Be7 e5 Qg3 e6 Qc3 Rad1 a1Q Rd5 Qb1 Rf5 Ka1 Rh6 Qbe1 Rg6 Nfe8 Rgg5 Qb2 Rf3 Rd3 Rd5 Na8 Nc7 Nb6 Rdf5 Qec1 Re1 f1Q Ree5 Qcc3 Qb3 Bd6 e7 Qfb1 Qb5 Qbb4 Rd5 Q1b2 Rde5 Nf6 e8B Be7 Rd5 Nc8 Rde5 Na7 Rd5 Ba8 Qb8 Nb5 Nd4 Qbc1 c6 Bb7 Na8 Nh7 c7 Qc5 c8N Q1e1 Rg5 Qed2 Bb3 Q5c4 Nc7 Qdb2 Re5 Ba6 Nc6 Nf6 Rg5 Q4b4 Ba2 Rf8+ Kg7 Na3 Bg6 Rg8+ Kf7 Ne8 Rde5 Bb5 Bd5 Bc4 Be6 Ba2 Bc4 Rb5 Rc5 Rb7 Ra5 Rb5 Re5 Rbd5 Rg5 Rd6 Rgc5 R6d5 Rcb5 Rg5 Rc5 Qcc2 Rcf5 Qcc3
B1bK1r2/n1p1rBr1/2RbNRp1/1k1qNb2/7B/3RqQp1/1qB2n1q/1N6 w - - 0 1 illegal: No possible last move, all moves rejected
2Q3nb/1pq1rRp1/rn3N1R/1RB1N1k1/8/Knb2B2/1Bb1Npq1/3q1Rb1 w - - 0 1 illegal: Other
1Q3q2/pN1B1rq1/NBpnnBR1/b1b2k2/bN2p3/2NRR2n/1r1K4/1b4r1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kd7 f4 Ke6 b4 h5 g4 c3 g5 h3 g6 c2 g7 a3 b5 e3 d5+ Kf5 d6 e5 b6 h4 d7 h2 b7 a2 Nf3 e2 Kd2 e1B+ Kd3 h3 Be2 Nf6 g8R Rh7 Be3 c1R Rg6 Rf7 Qb3 Bc5 Nc3 Qf8 d8N Na6 b8N Ne8 Nb7 Nd6 Qb2 Bd2 Ne1 Bd7 Nc2 Rg1 Nb4 Ba4 Rd1 a1Q Bf3 Be1 Bc6 Bd2 Be8 c6 Bf2 Nc7 N8a6 Rb8 Bd7+ Ne6 Qb1 Rg4 Rhe1 h1N Re3 h2 Bh4 Rg3 Bf6 Rg1 Qb3 Be1 Ke2 Nf2 Rdd3 Nh3 Qb1 Bh4 Kd2 h1B Qb3 Bg5 Qb2 Be4 Qb3 Kg4 f5 Kf4 Bg7 Bd8 f6 Kf5 Bh8 Rh7 f7 Ba5 Bf6 Rg7 Rd4 Bc2 Rdd3 e4 Qb2 Bb1 Qb3 Qe7 f8B Rf7 Bh6 Qf8 Bf4 Nb5 Bc7 Nd6 Bcd8 Bd4 Bb6 Bc5 Nca2 Qe5 Nc3 Qg3 Qb2 Qg5 Qb3 Qgh6 Qb2 Qhg7 Bc7 Ng5 Nc2 Rg3 Nd8 Rb4 Qb3 Rd4 Qb8 Rg1 Bb6 Rb4 Nb7 Rb3 Ncb4 Nh3 Qc7 Bb5 Qd8 Ba4 Qb8 Rb2+
rQ3b2/2nbpn1b/8/1B1p1r2/rRRq1N1B/K2n1B2/3pNN1k/Rr4bB w - - 0 1 illegal: No possible last move, all moves rejected
N3r3/Nrp2Qbk/2n1N3/nN1b1rnK/p1rb2RB/6p1/1R1Bq3/2RBn3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 a5 e4 g5 d4 f5 h4 Kf7 b4 Kg6 b5 g3+ Kf3 c3 e5 g2 b6 a3 b7 a2 d5 a4 h5+ Kh6 d6 c2 e6 Ra7 d7 Bg7 e7 Nf6 e8N Kh7 h6 Ne4 Nh3 g1B Be2 Qe7 d8N Be6 Nd2 Bd5 Nc6 B1d4 Nd6 Re8 Rg1 Qe5 Rb1 a1N Nb5 Nb3 Rg4 Na5 Nc4 Qe6 Be3 c1R Nb6 Rc4 Bd2 Qe7 Rc1 Qe5 Nd8 Nbc6 b8R Rb7 Qf1 Qe6 Bd1 Qe7 Kg2 f3+ Kh2 f2 Nf4 Qe6 Kh3 Qe7 Nfe6 f4 Na8 f3 Qg2 f1N Qf2 Nh2 Qf1 Kg6 h7 f2 h8B Kh6 Qe2 f1R Qf2 Kh7 Qf7 Nc3 Kg3 Rf5 Kh3 Nf3 Kg3 Nb4 Nc6 Ne1 Nca7 Nbc6 Kh3 Kh6 Kg3 Ne4+ Kh3 Bf8 Be5 Bg7 Bg3 Kh7 Bh4 Ng3 Nc5 Qe2 Ne6 Ne4 Rg2 Qd3+ Kg4 Qc2 Kh5 g4+ Bdg5 Qd3 Rb2 g3 Rb4 Rf6 Bd2 Ng5 Rb2 Rf5 Rd8 Bh1 Rd5 Qe4 Re5 Qg2 Re4 Qe2+ Rg4 Bd5
b3q3/qpp1kB2/1p5R/1Rq3n1/rQ3K2/2b3n1/1rnNBRp1/B1Nr2NN w - - 0 1 illegal: Other
Bn1B4/2pNn1r1/N1Rpr2q/6N1/n1K4p/bB1b1BR1/bp6/1kn1nR1Q w - - 0 1 illegal: No proof kernel
2RR3q/3R1NQn/2pB1rp1/pr2n1bB/2N1n2N/4N3/b2pK3/rbr3Bk w - - 0 1 illegal: No proof kernel
q1q4N/1B5n/1nB1RKp1/pp1rR3/2r1Rb1B/1Nq1qQ1q/1p4bk/2R1N3 w - - 0 1 illegal: No proof kernel
1RqN1Nbq/Br4r1/1b2b3/kn1Qpp2/p4RnR/2p2q1B/1K5N/4NBb1 w - - 0 1 illegal: No possible last move, all moves rejected
q3kBRB/1R1r4/1rBQNq1q/1p3p1n/1Rpb1n2/r3N1N1/4Np1r/K4b2 w - - 0 1 illegal: No possible last move, all moves rejected
B2N2nr/1NR3b1/bRN2p1n/1p2Kn1p/8/k7/1nq1BqpB/2B1QqRr w - - 0 1 illegal: No possible last move, all moves rejected
1r2Qb2/1r1Np1R1/p1pnBBN1/R5N1/1rB3qK/n2bq2p/1Rn5/2rkN3 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kd7 g4 Ke6 b4 Kd5 f4 h5 Kf2 a6 g5 e3+ Kg2 Ke4 g6 e2 d5 e1Q d6 c6 f5 a3 Kh3 c3 b5 a2 d7 c2 g7 Qe3+ Nf3 Ra7 f6 Rb7 f7 Nf6 g8B Ne8 b6 Nd6 Bb2 c1R Na3 Rb1 Bf6 Rb4 Rb1 a1N Rb2 Nc2 Bc4 Qc7 Qg1 Qd8 Be6 Kd3 Qg6+ Ke2 Rg1 Qe8 d8R Nd7 Rg3 Ne5 Ng5 Nec4 Rd7 Kd1 Rd8 Bg7 f8N Qd7 Qe8 Bh6 Ng6 Bf8 Nb5 N4a3 Nd4 Qf4 Ndf3 Qe3 Bf7 Rg8 Ne1 Rh8 Kh2 h3 Bc4 Qg4 Bfe6 h4 Rg1 Rc7 b7 Rg8 b8N Rcb7 Nd7 Rh8 Kh1 h2 Rg3 Rg8 Kg2 h1R Nb6 Rf1 Nd7 Qge4+ Kh3 Qg2+ Kg4 h3 Kh4 Qge2 Rf3 Rg1 Rf5 Rh1 Ra5 Qg2 Nc5 Qgf3 Bd5 Bf5 Nd7 Bd3 Be6 Bh6 Qf7 Ke2 Ng2 Rc1 Ne1 Kd1 Rf8 Rh8 Qg8 Qg2 Rf7 Qgg1 Qa8 Re8 Qb8 Bf8 Rg7 Rc8 Qc7 Qg2 Qd8 Rcb8 Qe8 Qg4+
2q1nK1n/2pqNBq1/R2p1NR1/3r4/N4p1b/qbp4R/1r3B1Q/nRB2k2 w - - 0 1 illegal: No proof kernel
q4R2/krp2R2/BN1p4/1KQR1p2/p4B1r/1r3b1B/nb2r2B/bnNNq3 w - - 0 1 illegal: No proof kernel
1R3B1b/1pr5/k1N2B2/1bnbrR2/b3B1p1/1r1NR1pQ/pR4qq/n2K1N2 w - - 0 1 illegal: No proof kernel
rBqN3K/2p1k2n/QNbp1bn1/5RR1/N1p1N1Rb/rn2r3/pp6/6BB w - - 0 1 illegal: No possible last move
3Nn1R1/b1r2p1R/qrQpN3/1b1p4/kp2B3/r1pq3B/1n1NR1RB/K2b4 w - - 0 1 illegal: No proof kernel
1RrB1Qnq/1Rpn1R2/p2NbN2/1B2pB1N/1b2p1qN/p6b/K5n1/1r1k4 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kd7 Kd2 Ke6 Kc3 Kd5 g4 h5 b4 e5 Kb2 c3+ Ka2 a6 f4 h3 f5 c2 b5 h4 g5 h2 b6 a3 g6 h3 g7 Qe7 f6 Bf5 b7 Bh7 f7 Qd8 Nd2 Nh6 g8B Qg5 Ngf3 Qh4 Rb1 Qg4 Nc4 Bc5 Bg5 Nd7 b8R Bb4 Bd8 Bf5 f8N+ Be6 Bh7 Ng8 Nh4 Ra7 Nd6 Rb7 Rg1 h1B Bb5 h2 Bf5 Bg2 Qf3 h1Q Rgf1 Bh3 Nh7 Rb6 Qf4 Rb7 Qh6 Rb6 Qf8 c1N+ Ka1 Nd3 Ka2 Rb7 Bc4+ Kc6 Be7 Bc5 Qg7 Bf7 Nb5 Nf8 Ng6 Ne1 Bfe6 Ng2 d5+ Kb6 d6 Ka5 d7 Ka4 d8N Nh6 Qg8 Nd7 Nd6 Qh2 Qg7 Rf8 Rf6 Ng8 Bf5 Re8 Ne6 Rc8 Nef4 Be6 Qf8 Qh1 Bb3+ Kb4 Bd5+ Kc3 Bc4 Kc2 Bd8 Rb4 Rb2+ Kd1 Rf7 Rb6 Rb4 Rb7 Nf6 Qh2 Ra4 Rb3 Rab4 Qh1 R4b7 Bb4 N4d5 Ne1 Ndf4 Bf1 Bd3 Qh8 Nh4 Bh3 Bb5 Ng2 N4h5 Rb1+
1N2R2N/BBk2n2/1p4R1/1Kb1q2p/pBr1b2N/1N2bpr1/R2Q2p1/3n1b1q w - - 0 1 illegal: No proof kernel
1K3n2/2Bk1r1B/4p1QN/1bp2R2/1R1qNbpr/1p3B2/1Rp2rp1/2b2RnN w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 c5 Ke3 g5 a4 b5 f4 b3 h4 b2 d4 g3 h5 g2 a5 c3 a6 b4 d5 e6 d6 c2 d7+ Ke7 f5 g4 Kf4 e3 Ke5 e2 f6+ Kf7 h6 e1B a7 b3 h7 Qa5 d8R Qa3 Nh3 Bb7 Nd2 b1R Rd4 Ke8 f7+ Ke7 Ra2 Bf2 Ne4 Bc6 Rb4 Be3 Nhf2 Qa5 Qd3 Qa4 Rb2 Bfh6 f8R Bb5 Rf5 Nf6 Be2 Ra1 Rf1 Nh5 Nh1 Nf4 Bf3 Ne2 Bd2 Beg5 Bf4 Ng1 Bh2 Rf8 h8N Bc1 Nf7 Bhe3 Nh6 Rf7 Bg3 Ke8 Kd6 Nd7 Kc7 Bf4+ Kb7 Ke7 Bh2 Rh8 a8B Nf8 Kc8 Rb1 Bd5 Rhh7 Kb7 Kd7 Bg3 Bg5 Bc7 Bgf4 Kb8 Qa1 Qc3 Rh8 Qg7 Qa4 Qg6 Rhh7 Ng8 Rh4 Nh6 Qa1 Ra2 Qd4 Rb2 Bcd2 Bc4 Re1 Bce2 Bc1 Bd3 Re2 Rf6 Qd5 Qg8 Ng6 Nef2 Nf8 Bh7 Re3 Rf5 Re2 Qg6 Qd4 Ne4 Rf2
N3R1K1/1nn1q2n/1nqr4/1kB2q1B/1B5B/1n1bqBrq/1Q1Q4/2RN3q w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 h5 Bb2 exf6 Ba3 f5 Bc1 f4 g4 hxg4 a3 b5 Be3 b3 Bh3 b4 Bf1 b2 Bd2 b3 Bc1 Bb4+ axb4 Ra7 Ra3 Ra5 Ra1 Ra8 Kd2 d5 Kd3 Kd7 c4 Kc6 e4 f5 h4 g5 c5 f3 h5 f4 h6 f2 e5 g3 e6 f3 e7 g4 e8Q+ Nd7 h7 g2 Bh6 g3 Ra7 Ba6+ Kd2 d3 Kc3 d4+ Kd2 Ne7 Be2 f1N+ Ke1 Rg8 h8B Nd2 Na3 b1N Nb5 b2 Bf6 Na3 Nh3 b1Q Be3 g1N Nc7 g2 Kf2 Nd5 Bh4 Nb3 Qe5 d2 Qh8 d3 Qb2 Rc8 Ra8 Nc4 Qe1 d1Q b5+ Kb7 b6 Kc6 b7 d2 b8B Qf5 Bd4 Nca5 Bc3 Qdg5 Bb4 Rcd8 Ba7 Bd3 Rc8 Qe7 Na8+ Kb5 c6 Qb1 c7 d1Q Qed2 Qbc2 Bb6 Qc6 B6c5 N7b6 Rb8 Rd7 Re8 Nb7 c8B Rd6 Be6 Qfh7 Bg4 Qf5 Kg3 f2 Bf3 f1Q Nf2 Nh3 Rg1 Nc7 Rh1 Rf8 Bh5 Qde1 Rg1 Q1e3 Rh1 Qff6 Kg4 Rg8+ Bg6 g1Q+ Kh5 Qh2 Rg1 Qfg2 Rc1 Qgh1 Nd1 Qff4 Bf7 Rg3 Bg6 Ng5 Kh6 Q7e6 Kg7 Qe7+ Bf7 Qh3 Kg8 Qff5 B7h5 Nh7+
B2bQK2/Bq2Q2b/qr2q3/3qBRb1/3n1B2/1bbN4/B5R1/nbqk1N2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Nd2 Ra7 Nb1 Rb7 Ra3 axb4 Ra1 b3 Ra3 b4 Ra1 Rb5 axb5 Rh7 Be3 Rh5 Bc1 Rh8 Kf2 Ke7 e4 Kd6 h4 Kc5 c4 f5 h5 g5 b6 d5 h6 f3 Kg3 f4+ Kh2 f2 h7 g3+ Kg2 g4 e5 b2 b7 b3 e6 Kb4 c5 d3 e7 d4 e8B d2 c6 d3 c7 Qf6 Bd7 Na6 b8B Be7 Qe2 d1B Nf3 d2 Be8 Bf5 c8Q Nh6 Be5 Qe6 Qd7 Bg5 Ra2 Nc5 Bf7 Rb8 h8B Bh7 Qdd3 Nf5 Rh6 Nd4 Ne1 f3+ Kh1 g2+ Kh2 g1B+ Kg3 Rb6 Bg2 f1Q Ra7 f2 Nc3 b1Q Rh2 b2 Ra5 Bb3 Qg6 d1Q Ba8 Qe4 Qh5 b1B Bcf4 Qb7 Rg2 Bd8 Qe3 Qfa6 Ne4 f1Q Nd2 Bg5 Nd3+ Kc3 Bg8 Kc2 Qe8 Bd8 Qe1 Be3 Bb8 Qc1 Bhe5 Qh1 Nf1+ Bd2 Qe3 Kd1 Ba7 Bc3 Qe7 Qh5 Qe4 Qhf7 Kh4 g3 Kg5 Qed5 Qg6 Qf5+ Kh6 Qfe6 Rga2 g2 Kg7 g1B Rg2 Be3 Qe8 Bed2 Kf8 Be3 Bg3 Bg5 Bgf4 Rc6 Bf7 Rb6 Raa2 Bc4 Bg7 Ncb3 Bc7 Qee3 Raf2 Qdb5 Rf5 Na1 Bf4 Bca2 Bc4 Qe6 Bge5 Q5d5 Bb3+ Bc2 Bc4 Bab1 Ba2 Bb3
1r1n2Q1/rr3B2/Bq1NBrp1/k1N2b1Q/3nR3/K1q2q2/3B2Rr/B3b1n1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 f5 h4 d5 c4 Kd7 Kc2 Kc7 Kb3 Kb6 e4 f3 e5 f2 h5 g6 h6 d3 h7 d4 e6 d2 e7 d3 e8B g3 Rh4 f4 Bd7 g2 Bh3 f3 Rg4 Nh6 Rf4 Bf5 Bg4 Nc6 Kb2 b3 Ra2 Nf7 Nh3 g1N Ng5 Bb4 Re4 Nd4 Na3 Ra7 c5+ Ka5 c6 Qb6 c7 Rb8 h8B Nd8 c8B Rbb7 Be2 f1Q Be6 f2 Bf7 Qh3 Ne6 f1R Nc5 Rf2 Bf1 Rh2 Qf3 d1R+ Bd2 Qg3 Bgh3 Qe5 Qh5 Re1 Be2 Rf1 Bhg4 Bc8 Bge6 Rf6 Bc4 Bf5 Bce6 Qbc7 b6 Qed6 Bh6 d2 Ba6 d1Q+ Bd2 Qf3 Bg7 Rb8 b7 Qdb6 Bh8 Rc8 b8Q Qe5 Qd6 Rb8 Qf8 Rbb7 Qg8 Bc3+ Kc1 b2+ Kb1 Nb3 Nc4+ Kb4 Kc2 b1R Rb2 Qeg3 Nd6+ Ka5 Bg7 Ra1 Bh8 Ra4 Kb1 Rb4 Ka2 Qe1 Ka3 Qee3 Bc1 Be1 Rg2 Qc3 Bd2 Rb8 Bg7 Qc6 Bgh6 R4b7 Bhf4 Qb6 Be5 Qh3 Bg5 Qcf3 Ba1 Qc3 Bc1 Qhf3 Bd2 Nd4+
1NR1Br2/RnNn1r2/1N3b1k/q7/qq4qN/3Bp1Qq/K3bNQn/6n1 w - - 0 1 illegal: No possible last move, all moves rejected
3KB1k1/1BQr3b/1NBn2b1/1B4n1/2r2b1Q/4qp1n/2nq3R/r1R1B1rN w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 h5 Kd3 f5 Kc4 Kf7 Kd5 f3 e4 h3 c4 f4 g4 h4 c5 h2 g5 d3 e5 d2 c6 b3 b6 f2 b7 f3 c7 h3 Na3 b2 Nc2 b1B Ra2 Nf6+ Kc4 d5+ Kb5 d4 Kb6 d3 g6+ Kg8 e6 Nbd7+ Kc6 Ne8 b8Q Qe7 g7 Nc5 Na3 Ne4 Qe2 d1R Bb2 d2 Ba1 Rh4 Bc3 Ng5 Nc4 Nd6 Qe1 Bh7 Ne2 Bb7+ Kb6 Bbe4 c8B Beg6 Ng3 Rd4 Rb2 Raa1 Bb7 Rg4 Rg1 h1R Qc7 h2 Bb4 Qe8 e7 Rf4 Bd3 f1N Bde4 Ne3 Bec6 Nc2 Ba5 Qf7 e8B Qe6 Rf1 Rg1 Nh1 Rd4 Qh4 Qe3 Bb5 Rdc1 Kc6 d1N Kd7 Nf2 Kd8 Nfh3 Nb6 Rc4 Be1 Rd1 Bb4 Rd5 Rc1 Rdd4 Be1 Rd3 Nf2 h1Q B7c6 Qg2 Nh1 Rdd4 Bb7 Qgd2 B5c6 Re4 Bb5 Re7 Bec6 Kf7 g8B+ Kg7 Ra2 Kh8 Bf7 Bh6 Bfe8 Kg8 Ra3 Nge4 Rd3 Bf4 Rd5 Rf7 Rg5 Rg7 Rg2 Neg5 Rh2 Rd7+
2R2R1b/2p3RN/Nr1B2q1/Kb5n/1R2bq1Q/n4Q1b/b1Rq3q/k4Bn1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 h4 exf4 g3 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Na3 g4 Nb1 Rg5 hxg5 fxg3 e4 Kd7 d4 Kd6 Kd2 h5 a4 f5 d5 Kc5 g6 Kd4 g7 g2 a5 h4 d6 f4 d7 h3 e5 b3 a6 b2 a7 b4 a8Q b3 e6 h2 e7 g3 e8R f3 Qa6 f2 Qa8 Na6 Re1 Nf6 g8R Rh6 Qaf3 Nb4 Ra6 Bg7 Qc2 c3+ Ke2 Nh5 Ra8 Bh8 Rg7 Rb6 Nh3 g1Q Kd1 g2 Na3 b1B Qh7 b2 Re2 c2+ Kd2 Ba2 Ng5 b1B Rb8 Ba6 Rc8 Bb5 Qh6 Qf6 Nh7 Qg6 Qg5 Be6 Qh6 Bba2 d8R+ Bed7 Rf8 Bh3 Nb1 Kc4 Nc3 Kb3 Bb2 Rf6 Ba3 Rb6 Ke3 c1Q+ Kd4 Qf4+ Kc5 Qd2 Nd5+ Kc2 Qhf4 Kb1 Qh4 Nc2 Nb4 Ka1 Re4 Qe1 Na6 Qd2 Bb4 Na3 Rc4 Bc6 Rc2 Be4 Bd3 Qgc1 Bf1 Qf4 Rg1 Qcd2 Rh1 Nb1 Rg1 h1Q Ba3 Qhh2 Rh1 Rc6+ Kb5 g1N Bd6 Rb6+ Ka4 Qhg3 Rh2 Na3 Rb2 Qg2 Rb4 Qh1 Ka5 Qhg2 Bc4 f1B Bd3 Qh1 Re2 Qhh2 Bc4 Qde3 Rc2 Qed2 Bd3 Bd7 Bb5 Bfh3 Bf1 Bb5
1RQ2b1n/1N1pNRQb/2nRqq1q/2rr1R2/p4b2/2KB4/2nr1R2/k5B1 w - - 0 1 illegal: No possible last move
b2BN1R1/n1N2B2/2q1bB1B/2Q1pb2/3qBQK1/1n1r2b1/1r1R1p1r/3nk3 w - - 0 1 illegal: No possible last move, all moves rejected
QBN1r3/b2pNbNQ/N4n2/6KB/1nk1qRq1/5rnp/N4b1R/2qq4 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kh5 a5 g4 a4 e4 f3 b4 c2 g5 a3 b6 a2 g6 f4 b7 f2 b5 f3 b6 h3 g7 h2 e5 Nc6 b8N Ba6 b7 Qe8+ Kg5 h5 Bb5 f1N Qd3 h4 Nd2 f2 Nc4 h3 Bf4 c1Q Nd6 Ng3 Ne2 f1Q Nc3 Nb4 Qh7 Nf6 g8N Qfd1 Nc8 Bc5 Nge7 Ba7 Be2 Bc4 Bh5 Rf8 Na6 Bb3 Rf1 h1Q b8Q Qe4 Qb7 Rb8 Qa8 Rf7 Rb1 a1B Na2 B1d4 Rb2 Bg1 Rh2 Bgf2 Nc6 Kd5 e6 Kc4 e7 Qd8 e8N Qde7 Ng7 Q7e6 N8e7 Re8 Nc8 Ng4 N6e7 Rf6 Bd2 Rf3 Bf4 Nf6 Rg1 Nf5 Rg4 Ng3 Rh4 Re3 Bc7 Rf3+ Rf4 Kd4 Nb8 Qf5+ Kh6 Bf7 Na6 Kc4 Bb8 Qe6 Kg5 Qg4+
1b1RB1n1/4N2Q/krb1R3/1N1rbK1R/1rpQqR1r/p1b1q1R1/8/n3B3 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 g4 h5 f4 hxg4 b3 cxb3 Bb2 exf4 Ba3 Rh4 Bc1 Rh8 Kf2 Kd7 e4 c5 d4 Kc7 h4 Kb7 b6 f5 d5 g5 d6 a5 e5 a4 e6 a3 d7 f3 Ke3 c4 h5 g3 e7 f4+ Ke4 b2 e8Q g4 h6 g2 h7 f2 Rh6 f3 Qd2 g3 Rf6 Na6 Ke5 Bb4 Ke6 Qe7+ Kf5 Nc5 Rf7 Qe3 Qd4 Ra4 Ne2 g1B Rf6 g2 Bd2 Nb3 Qh5 Bh2 Nbc3 b1R Re6 g1B d8R Be5 Be1 Ka6 Bh3 f1R Nb5 f2 Nec3 Bb7 Nd5 Bc6 b7 Bgh2 b8R Bc3 Ne7 Rb4 Rf8 Rh1 Rbd8 Rf1 Ra2 Na1 Rb2 Bb8 Rb3 Bhe5 Bg4 Rg1 Qh3 Rd1 Bh5 Rg6 Qh1 Rh6 Be8 f1Q+ Bf2 Qfe2 Be1 Rh4 Qh2 Nf6 Qh3 Rg8 h8R Rg6 Rh5 Ng8 Qh1 Bd2 Rd3 Bc3 Qhe4 Qc1 Rg3 Qce3 Qf4 Qg2 Qh6 Qge2 Qh7 Rh6 Qf4 Rd5 Qd4 Qe4+ Kg5 Qf2 Rf4 Qfe3 Red6 Re6 R6d7 Ba8 Rb7 Qh1 Kf5 Rg6 Rc7 Rb6 Rc6 Qg2 Rch6 Bc6 Re6 Qge4+
kq3Nqr/NqQ3r1/1pb2r2/1N2K1N1/1R1p2nb/N6B/1Brq3R/1Q2n3 w - - 0 1 legal: proof: h4 f5 e4 c5 exf5 a5 b4 axb4 d4 cxd4 a3 bxa3 Qd2 g5 Qd1 gxh4 Ke2 d5 Kd3 Kd7 g4 Kc6 f4 e5 c4 h5 g5 a2 g6 h3 c5 e4+ Kc2 h4 f6 e3 Kd3 e2 g7 e1Q f7 b6 f5 Kb7 f6 h2 Nh3 Be7 f8Q Ra7 c6+ Ka8 c7 Nh6 g8N Qg3+ Qf3 Na6 f7 Nc5+ Ke2 d3+ Ke3 d2 Kd4 d1Q+ Qd3 Ng4 Nc3 Bd7 c8N Bc6 Nh6 Qb8 Ng5 h3 Nb1 Qd2 Qg7 Qg8 f8N Bd8 Qh7 Rg7 Na3 Be7 Rb1 a1R Rb5 Ra2 Rb4 Rc2 Nhf7 Bd8 Nfd6 Be7 Rg1 h1R Rg2 h2 Ndb5 Rg1 Rf2 h1Q Bh3 Rf1 Nca7 Qf3 Bb2 Qff7 Nge6 Bh4 Ng5 Qfb7 Re2 Rf6 Rh2 Qe2 Qg3 Nd3 Qc7 Qd2 Qf5 Ne1+ Qd3 Nh6 Ke5 d4 Qb3 Bf2 Qa2 Bh4 Qb1 Ng4+
r2B3q/R1Kp1r1k/2N1p2b/Q1B5/1nn5/1q2r3/N1rRbBnn/3BB1Q1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 c5 d4 cxd4 Kd2 f5 Ke1 b5 axb5 fxe4 Bh6 axb4 Bd2 Rh4 Bc1 Rh8 Kd2 Kf7 h4 Kg6 f4 b3 c4 e6 b6 b2 f5+ Kh6 f6 g5 h5 e3+ Kd3 e2 Ke4 e1R+ Be2 g3 Ke5 g2 f7 d3 b7 d2 c5 g4 c6 g3 c7 Ra3 Nf3 g1Q Nd4 g2 Nc6 Na6 b8B Rf3 Rh2 Qb6 Ba7 g1R Nc3 b1N Na2 Kh7 h6 Qb3 Bf2 Nf6 Rg2 Bb7 c8Q Nb4 Qa8 Na3 Qa5 Ba6 Bb2 Rh1 Bc3 Rh2 Qc1 Rf1 Bd1 Be2 Qb1+ Rd3 Qc1 Bg7 f8B Re3+ Kd6 Ng4 Be7 Qf8 Kc7 Nc4 Bd8 Qf6 Bd4 Qh4 Be1 Rf7 Bc5 Rhf8 Bde7 Ra8 Bd8 Bf8 Bf2 Qf6 Be1 Qh8 Bf2 Kg6 h7 Bh6 Be1 Kg7 Rf2 Rg2 Qb1 Nh2 Qc1 Qg8 h8B+ Kh7 Bb2 Qh8 Bbd4 Rgg3 Rg2 Rc3 Bdf2 Rge3 Rg5 Rc2 Rd5 Bf1 Bh5 d1N Rd2 Be2 Qb1 Rc3 Bf3 Nde3 Qc1 Bd3 Bd1 Ng2 Bf3 Ne5 Qb5 Rc4 Nc3 Rg7 Ra7 Rf7 Qa5 Bf4 Na2 Re4 Qa1 Re2 Qd4 Be3 Bg3 Bh6 Qg1 Nc4 Bgf2 Re3 Bd1 Be2
2r3RB/2N2k2/1pQ2b2/2n1p1R1/Q4q1n/1bR2np1/rRN1R3/1nKnB1b1 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 gxf4 g4 d5 cxd5 h5 g5 f5 Bh3 fxe4 Bg4 hxg4 d4 c5 Kd2 e5 a4 g3 h4 c4 h5 f3 g6 f2 g7 b3 h6 b6 h7 b2 d6 Bg4 a5 Bf3 d7+ Kf7 a6 Bh5 a7 Ba3 d5 Bb4+ Nc3 Bc5 d6 Qf8 d8R Na6 d7 Nh6 g8R Nf5 Rh2 Nh4 Qa4 Bd1 Rg5 Bb3 Rb1 Rc8 a8Q f1N+ Ke2 e3 Nf3 Rg8 Nb5 c3 h8B c2 Bd2 c1B Nfd4 Qh6 Kd3 e2 Nc2 Bg1 Nc7 Ne3 Be1 Nd1 Q8c6 Qf6 Re8 Qf4 d8R Bd2 Rc1 b1N Rd6 Rg7 Rg8 Bb4 Rd5 Be7 Rb5 Bf6 Rf2 Ba2 Rb2 Bb3 Na3 Rh7 Rc3 Rh6 Nc2 Rh5 Bd2 e1N+ Ke2 Nef3 Be1 Ng2 Kd3 Rh2 Re2 Ngh4 Ne3 Bc4+ Kc2 Nc5 Kc1 Rg2 Rec2 Bb3 Re2 Qe4 Nc2 Qf4+ Ree3 Rd2 Re2 Bd8 Nd4 Bd5 Rbb3 Bf6 Rb5 Qf5 Rb4 Ra2 Rbb2 Bb3 Nc2 Qf4+
N7/B1NK2nk/1b1b3b/p2b3N/1pR1p1qQ/r1Q1q3/brNR2nN/2B5 w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 Qb3 gxh4 Qa4+ Qd7 Qd1 Qd8 b4 a5 a4 axb4 a5 Be6 a6 Bh3 a7 Bc8 Ba6 bxa6 Ke2 Kf7 Ke3 Kg7 Kf4 h5 Ke5 c5 g4 h3 f4 c4 d4 h2 d6 c3 f5 c2 f6+ Kh7 d7 e3 Ke6 e2 f7 e1B g5 h4 d5 h3 d6 Nc6 Ra4 Nf6 Qe2 Nh5 Qc4 Na5 Qc3 Qb6 Na3 Nc4 Nf3 Ne3 Ra5 Bb7 d8N Bf2 Rd5 Ng7+ Kd7 e5 Rd2 Bd5 Ne6 Ng2 Nc7 Qe3 Rhd1 h1Q Nh2 Be7 f8B Qg1 Rd4 Ba2 R1d2 Qd1 Rc4 Qg4+ Kc6 a5 d7 Rc8 a8N Bd6 Be7 Rcf8 d8Q Rf3 Bf6 Rf8 Be7 R8f5 Kd7 Bg1 Nf1 h2 g6+ Kh6 Bh4 h1B Bf2 Rh3 Nh2 Rg3 Bb2 c1B Qh4+ Nh5 g7 Kh7 g8N Rgf3 Nh6 Ng7 Nc2 Rg3 Be1 Rf2+ Nf5+ Qh6 Qd4 Ra3 Qc3 Re2 Bg3 Bd4 Bf2 Bb6 Rd1 Bf4 Rd2 Bg5 Bc1 Bge3 Qg3 Qhh3 Bg1 Bh6 Qh4 Qe3 Bf2 Nf4 Bg1 Bd5 Bf2 e4 Bg1 Nge6 Ng7 Ng2 Nh5 Ng7+ Kd8 Qd3 Ne3 Bhf4 Rd1 Rb2 Nc2 Bh6 Rd2 Bd4 Be3 B4e5 Ba7 Qe3 Nf4 Bc5 Nh5 Bb6 Ke7 Bd6+ Kd8 Qge2 Kd7 Qg4+
5B1R/R1Q3r1/q2B4/p1r1nB1r/qk3B2/1q2pb2/1Qb1rNpB/1Kn3N1 w - - 0 1 legal: proof: e4 b5 a4 bxa4 d4 f5 b4 fxe4 g4 c5 g5 cxd4 g6 e6 b5 Bb4+ c3 hxg6 cxb4 g5 Be3 g4 Bf4 Kf8 Bc1 Ke8 Kd2 Ke7 Kc2 Kd6 f4 g5 h4 a5 h5 a3 h6 d3+ Kd2 e5 h7 e3+ Kc3 e2 b6 e1R b5 Kc5 b7 d5 f5 e4 b6 a2 Kb2 e3 f6 d4 f7 g3 f8B+ Ne7 Bg2 d2 Rh3 d3 Be4 g2 Qe2 d1Q Rf3 d2 Bd5 g4 Rf4 g3 Qa6 Qd6 Bc6 Nd5 Rf7 Nb4 Nc3 Re2 Bd7 N8c6 b8B Ne5 Bf5 Bb7 Qa7 Bf3 b7+ Kc4 Rg7 Qa6 Ne4 Qa4 Nf2 d1B+ Bd2 Qb3+ Kc1 Kb5 Bc7 Re8 b8B Rc8 Be1 Kc4 Bcd6 Rc5 Qc7 Kb5+ Bc3 Kc4 Rb1 a1Q Rd7 Qaa4 Ba1 Rg8 h8Q Rg7 Rb2 Nbd3+ Kb1 Nc1 Rd8 Qba3 Rb7 Q3b3+ Bb2 Rh7 Ra7 Rh5 Qhg7 Ng6 Bf4 Ne5 Bd6 Kb4 Rh8 Qbc4 Qg8 Qc3 Qa2 Qcc4 Bd4 Qd5 Qb2+ Qdb3 Ngh3 g1R Bf8 Rh1 Ng1 g2 Bh2 Rh7 Bf4 R1h5 Bd6 Nf7 Bg7 Ne5 Bgf8 Rd7 Bh2 Rg7 Qc6 Nf7 Bdf4 Ne5 Bbd6 Bd5 Qd7 Bf3 Qc7 Bc2+
3N3k/4BQ1q/pR2K1nB/1rN1r3/4nprQ/1Q1p4/b2R1brQ/q2Qn3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 d5 Kd3 f5 e4 Kf7 b4 g5 c4 Kg7 h4 a6 c5 g4 c6 Qf6 e5 Ne7 h5 Qh6 b6 Be6 b7 Qg5 b5 Rh6 c7 Kh8 c8Q Bf7 b6 Qg8 e6 Nbc6 b8Q Nd8 b7 Ng6 e7 Qh7 e8Q Ne6 Qc4 Ng5 Nf3 g1N Ne5 g2 Nc6 g3 Nc3 Ne4 Na4 Nf3 Nd8 g1R Ra2 g2 Qh2 Rb8 Rd2 Bg8 Ba3 Bc5 Qcb3 f4 Qf7 Bb6 Bf8 Re1 Qh4 g1R Nc5 Rg4 Rhh2 Ba7 Rb2 Reg1 Rhd2 R1g2 Be7 Rg5 Qbc2 Re5 Rb6 Rg4 Qe2 Rg2 Qcd1 Rg4 Qeh2 Rg2 Kc2 d3+ Kb3 d4 Kb4 Ne1 Kc4 Re6 Kd5 Re5+ Kc6 Rg4 Kd7 Rg2 Qf5 Ba2 Qf7 Rc8 b8Q Rc6 Nb3 Rcc5 Qb7 Ra5 Nc5 Rb5 Qbd5 Rg4 Q5b3 Rg2 Re2 d2 Rf2 Reg5 Ke6 d3 Re2 R5g4 Rf2 Qg8 Re2 Rh7 h6 Rg7 h7 Rg5 Qc2 d1Q Rd2 Qa1 Qd1 Qf8 Bd6 Rg8 Be7 Qh6 Qf5 R5g4 Qfd5 Re8 Qdh5 Kg7 h8B+ Kg8 Bg7 Qh7 Bh6 Kh8 Rc6 Ne5 Qf7 Ng6 Nd7 Be3 Rb6 Bf2 Nc5 Rg8 Qe8 Rf8 Qd7 Rf5 Qdd5 Rh5 Qf5 Rhg5 Qf7 Re5+
qQ1b4/4kBqb/4N1Rb/3B1Rp1/3Rn1Kp/r2R2r1/1pq2RQ1/1Nr3q1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Qd3 fxg6 Qd2 g5 Qd1 g4 h4 g5 h5 e4 Bd2 e3 Bh3 exd2+ Kf1 Nc6 Kg2 Bh6 Kg3 Bg7 Bf1 Nce7 Kg2 Ng6 hxg6 Bf8 Kg3 b5 e4 h5 c4 d5 f4 b3 a4 d3 c5 d4 a5 b2 a6 b4 c6 b3 a7 Bd6 e5 Ba3 c7 Ke7 g7 Bf5 c8R Bh7 e6 Nf6 Qc2 d1R g8R d2 f5 d3 Ne2 Rc1 Rc3 d1Q Rg6 d2 Bg2 Qg1 Rd3 d1Q Nf4 Re8 Qf2 Qc2 Ra2 Rf8 Rh4 Qe8 Nd2 b1Q Qf1 Qbb2 Nb1 Rh8 Qe2 Qa1 Qe5 Qg8 Qb8 Qg7 Rb2 Rc8 Ra2 Rc3 Rb2 Qf1 Bd5 Bd6 Ra2 b2 Ra5 Bc7 Rb5 Bd8 Rc5 Ke8 e7 Qa6 Ne6 Qg1+ Bg2 Kf7 e8B+ Ke7 Bf7 Ra3 Qb4 Rb8 a8Q Qa5 Qd2 Rbb3 Qb8 Qa8 Qf2 Qgd1 Bd5 Ne4+ Kg2 g3 Kh3 Qe1 Qg2 Qg1 Rf4 h4 Kg4 Rc3 Rc4 Rcb3 Rf2 Rc3 Rcd4 Rcb3 Qh3 g2 Qhh2 Qe1 Qhg3 g1B Qf3 Bh2 Qg2 Be5 f6+ Kd7 Bg8 Qg1 f7 Ke7 f8R Rc3 R8f5 Rcb3 Rd1 Rh3 Bf7 Rhg3+ Kh5 Qh8 R1d3 Bg7 Be8 Bh6 Bf7 Rh3 Kg4 Qg7 Rf1 Rf3 Rf2 Rg3+
bn4N1/2nNp3/2kN2NQ/1n1bRRb1/2rr1p1b/n7/1QnNp3/1K2BB2 w - - 0 1 illegal: No possible last move
3B2qB/5bR1/4NQ1R/b6q/n4pb1/pk3pBp/1b1Qr2r/KBb1NB2 w - - 0 1 illegal: No possible last move, all moves rejected
3Bkn1r/3p1p1r/4b2r/2Q1R1B1/1bp1bRn1/3B1p2/1NrKNQ2/n1B4B w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 g5 axb4 g6 hxg6 Ba3 g5 Bc1 g4 c4 b5 d4 b3 d5 b4 d6 Ra5 Nf3 Rd5 Ng1 Qg5 Nd2 Rxd6 Nb1 Qb5 cxb5 Rd2 h3 g5 a4 c5 Ra2 g3 e4 g2 a5 g4 a6 c4 a7 g3 a8B b2 b6 b3 b7 Nf6 e5 Rd3 e6 Ke7 Ra5 Nc6 b8B Nd4 Bc7 Bb7 Qd2 Ng4 Nc3 b1B Na4 b2 Qe2 Ra3 Kd2 Bd5 Qe1 Bg6 Bd3 Rc3 Ne2 g1R Rb5 Rg2 Rf1 Rh2 Bb6 g2 Bd8+ Ke8 Rf3 g1R Qf2 Bb4 Bb7 Kf8 e7+ Kg8 Bc6 Ne6 e8Q+ Kg7 Qe7 Rgh1 Qg5 Kf8 Qe5 Ke8 h4 Rg8 h5 Rh8 Qd6 Nf8 Ba8 Be6 Re5 Rh4 Qdc5 R1h3 Rg3 Bh7 Bh1 Be4 Rf3 b1N+ Kd1 Rh2 Nb2 Na3 Kd2 Nc2 h6 Na1 h7 Rg8 h8B Rh7 Bhf6 R2h6 Bg5 Rgh8 Rh3 f3 Rh4 Nf6 Rf4 Ng4 Qb6 Nf6 Qbe3 Ng4 Qc5 Rc2+
1Q4QR/2p2Rp1/2k1rq1N/2rpp2B/K2pn2B/n1qNQ2Q/b4p1Q/4r3 w - - 0 1 illegal: No proof kernel
b2nrRb1/1bB1rQ2/qN2bK2/1Rb1B2B/2r5/6N1/bq1B2Bk/n1b2Qn1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 a4 Ke5 c4 d5 h5 g5 a5 b5 a6 b3 h6 b2 f3 e3 Kd3 Kf4 h7 Kg3 a7 e5 c5 e4+ Kc2 e2 c6 e1Q f4 e3 Kd3 b4 c7 b3 f5 e2 f6 Ne7 f7 Na6 Ra2 Be6 c8B Qea5 Rh5 e1R Qc2 Nc6 Nc3 b1B Be3 b2 Bc1 Ba3 f8B Qdb6 Na4 Nab4+ Kd2 d3 Kc3 d2 Bh3 d1B Qf5 d4+ Kd2 d3 Kc3 d2 Bd7 Bf3 Qc5 d1B Ra1 Rc8 a8Q Qaa6 Qe3 Kh2 Nc5 g3 Qf2+ g2 Qf1 g4 Bd2 g3 Qb7 Nd8 Kd4 Bba2 Bd6 b1B Ne2 g1B+ Ke5 g2 Be8 Bbe4 Na4 Bdb3 Bc7 Bc5 Ng3 g1N Kf6 Bc1 Re5 Bc6 Bh5 Re8 h8B Nc2 Bg2 Qb4 Qa7 Ba8 Nb6 Bfb7 Rb1 Qba3 Rf5 Na1 Rf3 Bg8 Rb2 Bbe6 Rb5 Re5 Bg7 Be4 Qb7 Qb2 Qd5 Re7 Qd7 Re8 Qf7 Beb7 Kg6 Be4+ Qf5 Bd7 Bb8 R5e7 Bge5 Beb7 Qf6 Rc6 Bbc7 Be3 Qe6 Bdc8 Rf8 Rc4 Qef7 Bc5 Kf6 Be6
1n1q3r/4Q3/1N1nrbRB/1B2NqnK/7R/2Br1qk1/bB1Q2q1/2Bn1b1q w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 a4 Kd6 f4 g5 d4 b5 h4 e5 a5 c5 a6 e3 h5 g3 Kf3 g2 d5 g4+ Kg3 c3 f5 c4 a7 e4 h6 Ke5 h7 b3 d6 e2 f6 e1N Kh4 c2 d7 c3 Bd3 e3 Kg5 b2 Be2 g3 Ra2 b4 Nh3 g1Q Bf3 g2 Bd5 b3 Ra3 e2 Ra2 Qf2 Ra3 g1Q+ Kh5 Ba6 f7 Qf5+ Ng5 Bg7 f8B Nf3 Qd3 e1R Rh4 Bf6 Bd2 c1Q Bb7 c2 Be3 Nh6 Nd2 b1B Bc6 b2 Bb5 Nf7 Bh6 Nd6 Rc3 Qf2 Rc6 Qd1 Qa3 c1Q Nc4+ Kd5 Bd4 Ba2 Bc3 b1N Qb2 Re3 Qd2+ Rd3 Rb6 Re8 h8B Qg2 Bb2 Re3 Rc6 Nc3 Nb6+ Ke5 B8g7 Qe7 d8B Qb3 Bh8 Qch1 Bc1 Nd1 Bc7 Qfh7 Nf7+ Kf5 Bg7 Re6 Ne5 Ng5 Bb2 Qd8 Bc3 Nd7 Bb2 Rc8 a8Q Nb8 Qb7 Qbd5 Rc4 Qdf3+ Rg4 Qd7 Bc1 Rh8 Bd8 Qc8 Qe7 Qg8 Na4 Qc5 Ba5 Qd8 Bc3 Re3 Be8 Bf1 Bb5 Rd3 Nb6 Nh7 Bf4 Ng5+ Bh6 Ke4 B1b2 Qd5 Nc6 Qf5 Ne5 Qff2 Rg3 Qff3+ Ng4 Qe3 Ne5 Nh3+ Rg5 Qeg3 Qc2 Q3f2 Bfc1+ Q2f4 Ng4 Kf3 Qe2+ Kg3 Qd2 Q5e4 Rg6 Ng5 Ne5 Qef5 Ba5 Qff2 Bac3 Qf2f3+
1B2q3/1r3N2/1NN2QB1/KbQ3rb/1r6/1nb3rN/rb1kb2R/Nn1b1Rq1 w - - 0 1 illegal: No possible last move
2Q2Nb1/2Q1Knkb/3n1b1n/1B3Rq1/bB2N2b/3rQr1q/1Q4rn/2QR3b w - - 0 1 illegal: No possible last move, all moves rejected
1q1Nr3/QRb1R3/nb1rr3/qB2n1rb/NrNq2Q1/1kb5/5N2/1r3KBN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 c4 Kd6 a4 Kc5 h4 g5 e5 b5 h5 f5 e6 d5 h6 d3 a5 b3 a6 Kb4 e7 d4 e8N b2 c5 f3 c6 f4 h7 g3 a7 g2 c7 d2+ Kf2 d3 Qe2 d1R Nh3 d2 Nf6 g4 Nh5 Kb3 Qe1 b4 Ng7 Na6 Qe2 Nf6 Kg1 f2+ Kh2 g1B+ Kg2 f3+ Kg3 Rb8 a8N Bd6+ Qe5 Nd7 Nc3 b1R Bd3 f1R Na4 f2 Kg2 g3 N4b6 Rfe1 Rh2 f1R Nf2 Re8 Qc5 Ne5 h8N Bg4 c8Q Bh5 Bb5 Bc7 Na4 Re4 Qa7 Qd5 Nh1 Rf5 Ne6 Bd4 Ng5 Bc3 Nh3 Rg5 Qg4 Re6 Ba3 Rbe8 Nf7 Qc5 N8b6 Rc4 Bd7 Qa5 Bb5 Rf4 N3f2 Re4 Kh3 g2 Nc4 g1B Kg2 Rd4 Nd8 Rf4 Ne4 Bgb6 Nef2 Rd4 Rh3 Rdd6 Rh2 Rb2 Rh3 Rdb1 Re3 d1Q Re1 Qd4 Kf1 Kc2 Ra2 b3 Ra1 Ra2 Bc1 b2 Be3 Ra3 Ra2 Rb3 Ra3 Rb4 Rb3 Rh8 Bf4 Rf8 Bh2 Rfe8 Bg1 Bd2 Rf3 Bc3 Rf7 Kb3 Rh7 Rd1 Rf7 b1Q Rd7 Qb2 Rg7 Rb1 Rf7 Bb8 Rb7 B8c7 Qd1+ Ka2 Nh3 Nd7 Re5 R6e7 Re3 Rb3 N3f2 Bc5 Bc6 Rb5 Re6 Ne5 Rb8 Qbb4 Rf6 Ree6 Rf7 Rb7 Re7 Qbb6 Qa8 Qa7 Bd7 R7b6 Rb7 Qb8 Qa7 R6b4 Bc6 B5b6 Bb5 R1b2 Qe2 Kb3 Qg4 Rb1+
Nn3bb1/1kNr4/6R1/2q3qR/1rq1b1rr/R3BQq1/1QK1br1n/3BRR2 w - - 0 1 illegal: No possible last move
QqNn4/2n1rk2/1B3b2/2b3np/B2B1r1n/Rb3nQ1/4qB1r/qR1B1K1N w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 c5 f4 h5 a4 e5 d4 b5 f5 e3 d5 e2 d6 c3 f6 e4 d7+ Kf7 g5 b3 a5 c2 a6 c4 a7 b2 Nd2 b1N Kf2 e1N Ndf3 e3+ Ke2 h3 Qd3 c3 Ba3 c1B Nh4 c2 Ng6 b4 Qd4 h2 Qe5 b3 Qb5 b2 Qb7 Bc5 Nh3 Nc6 Rg1 h1R Nhf4 Nf3 Qb8 Nge7 Nd3 Qe8 d8B Rh2+ Nf2 Nf5 Bb6 N5h4 Ne7 Be6 Qg3 Nd8 Nc8 Bb3 Bb4 Rb8 a8Q Rf8 Ra3 Rb7 Bc3 Re7 Bd4 Bd2 Bh3 c1Q Bd7 Bc3 Ba4 Nbd2 Rf1 Qa1 Rb1 Ne4 Kf1 Nd6 Nh1 Nb5 Qe4 Nc7 g6+ Kg8 g7 Kf7 Qa8 Ng5 Rc1 b1Q g8B+ Kg6 Bh7+ Kf7 Bc2 Bb2 Bd1 e2+ Kg1 e1N Kf1 Qe4 Rb1 Nef3 Bf2 Qb7 Bd4 Qb8 Bf2 Kg6 f7 Bf6 Bd4 Rh8 f8B Kf7 Bg7 Rf8 Bf2 Bfd4 Bh8 Qb5+ Be2 Ke6 Ba7 Rf4 Bb6 Kf7 Bf6 Qc4 Be5 Qe6 Bd1 Bb2 Bed4 Qe4 Bde3 Bf6 Bd4 Qe2+
1Nq3r1/2r2r2/1p4BR/1NnN1qqK/4n2B/RQQ4b/1q1bN1q1/bk4Nq w - - 0 1 illegal: No possible last move, all moves rejected
3N1nK1/2RrrR1R/1qN2Q1Q/1B1q3b/qnRR3p/1rq4k/3r3b/4r1Bq w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 h5 e4+ f3 a4 b5 a5 f5 e5 f4 a6 h3 a7 h2 g3 d3 e6 h4 c5 b3 c6 d2 e7 b4 e8Q b2 c7 b3 Qde1 d1Q+ Ke5 d5 Ne2 d4 Be3 f2 Nd2 b1Q Qe7 b2 Qf7 f3 Nf4 d3 Qf6 Nd7+ Ke6 Qa4 Kf7 Bd6 Nb3 d2 Nd4 d1R Nc6 Nf8 Bb5 f1Q Ne6 f2 Qd2 Kh3 g4 Qfd3 g5 f1R g6 Rh7+ g7 Rfe1 Rf1 h1Q Bg1 Qc3 Qdh6 Rd2 Rf4 Qba2 Rc4 Ne7 Rd1 Nd5 Kg8 Rb8 a8R b1R Ra5 Bh2 Ra7 Nb4 Rb7 Qdd4 Ned8 Bg4 c8R Qb6 Rf7 Rb3 Rcc7 Rd7 Rdd4 Bh5 Qd6 Qag2 Qdf6 Qd5 Ba6 Ra8 Bb5 Qd6 Re7 Be2 Kf7 Qaa1 Qf2 Ra2 Qff6 Rh8 g8R Rh7+ Rg7 Bh5+ Kg8 Rd2 Rg6 Rf7 Rg7 Qdd5 Rh7 Qa4 Qfg7 Rf5+ Rf7 Rfe5 Qgf6 Ree7
1nR3B1/2n1N1b1/4bQ1N/3rn1B1/kn1Qp1K1/2b1N1nn/N1rn2N1/2b2qR1 w - - 0 1 illegal: No possible last move
4n3/1kB2Rq1/bn1b2b1/1bQ1RpQR/b3n1R1/1N3N1b/1R2K2n/r2Bb1r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 d5 c4 Kd7 h4 Kc7 a4 g5 c5 b5 e5 b3 h5 g3 c6 g2 e6 b2 e7 d3 e8Q f3 a5 d4 a6 b4 a7 f2+ Kd2 g4 h6 g3 h7 b3 Ra6 Nf6 Qe4 Bh3 Qee1 Nbd7 Nf3 g1N Qe6 g2 Qc4 Rg8 h8R Qe7 Nh2 Ne8 Qc5 Ne5 Nc3 b1B Qa3 b2 Qda4 Ngf3+ Kd1 g1B Qc2 d2 Qg6 Nc4 Rh5 Bd3 Qg5 b1B Be2 f1B Rb6 Bf2 Rg1 Be1 Qac5 f6 Rb5 Qg7 Rg4 Bd6 Na2 Bg6 Rb3 f5 Rb2 Kc8 c7 Bd3 Nb4 Kb7 c8R Na5 Nc2+ Bb5 Na1 Nc4 Nb3 Ba6 Kc2 d1N Kd3 Nc3 Bf4 Ne4 Rd8 Bc7 Rd5 Bd6 Re5 Bb5 Kc2 d3+ Kd1 d2 Bg3 Rc8 a8R Rb8 Kc2 d1B+ Kd3 Rc8 Ra6 Ra8 Rc6 Ra1 Rc7+ Kb8 Rf7 Ka8 Nd2 Bda4 Nb3 Kb8 Bf4 Ka8 Bd2 Ba6 Ba5 Kb8 Bc7+ Kb7 Kc2 B6b5 Bd1 Be2 Nf1 Nh2 Nd2 Ba6 Nf3 Ncd2 Qf4 Beb5 Qg5 Nc4 Kd3 Qf8 Qh4 Bh7 Rf4 Rg1 Ke2 Qg7 Qg5 Bg6 Rg4 Nb6+
k1bqnBqK/rn5b/2n3N1/p1b4q/R1Q1Q1B1/1r4Qr/2Q1n3/1Nr1QR2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 h5 Kf3 f5 c4 d5 b4 Kd7 e4 Kc7 g4 Kb7 e5 a5 g5 h3 e6 d3 c5 h4 b5 a3 e7 a2 e8Q d4 g6 h2 b6 h3 g7 d2 Ba3 d3 Qda4 d1Q+ Be2 d2 Bb4 Nc6 Nc3 Nf6 g8Q Qb3 Bb5 d1N Qe5 Ra7 Bc4 Ka8 Rb1 a1N Ne2 Ne8 Rf1 h1R Be6 h2 Qe4 Rh3+ Qg3 Qa2 Qac2 Nb3 Ra1 Bd6 Nb1 Nc3 Nc1 Bf8 Nd3 Ne2 Ne5 Rg1 Ng6 h1Q+ Kf2 f3 Ke3 Rg2 Qe1 Rgg3 Bd7 f4+ Kd3 Kb8 b7 f2+ Kc4 f3 Kd5 Qh2 Ke6 Qh1 Kf7 Bd6 Rg1 f1R Kg8 f2 Bg4 Qh2 Rh1 Rfg1 Ba3 f1B Qcc4 Rc3 Bb4 Rgg3 Ba3 Bg2 Rf1 Rc1 Qcc2 Rc3 Bb4 Qe5 Ba3 Qh5 Bb4 Ne5 c6 Rce3 Ba3 Nc5+ Qcc4 Rb3 Bb4 Qd2 Ra4 Q2g5 Qcc2 Ra6 c7+ Ka7 Qed3 Be4 Ba3 Bef5 Qe4 Nc6 Bb4 Kb6 b8Q+ Nb7 Ba3 Bc5 Bb4 Ra7 Ba3 Bcd7 c8Q Ka6 Qcc7 Bc8 Qf7 Kb6 Qbg3 Ka6 Qfc4+ Kb6 Qgf2 Kc7 Qh4 Kb8 Qhg3+ Ka8 Bb4 Be3 Bf8 Bc5 Qc4d3 Qf4 Qdc4 Qb8 Nh4 Bh7+ Kh8 Qbc7 Ng6 Qf7 Q2c3 Qfd5 Qcc2 Qg8+
Qqr1n3/1n1pR2b/QQ2QQNk/2b1q1Nn/2b4B/3r1B2/1nK5/b1r1R1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 e4 f5 a4 Kf7 c4 Kg7 h4 b5 e5 d3 c5 b3 e6 g3 e7 g2 e8Q f3 c6 f4 a5 b4 h5 g4 a6 b2 c7 f2 a7 g3 Qee2 b3 Qg4+ Qg5 Qgf3 Na6 Kc3 d2 Ra3 Nc5 Be2 f1R Ra2 Nf6 Qc2 d1N+ Kd2 Ba6 Qe3 f3 c8Q f2 Qc3 Bc4 Qb7 Rc8 Qcb4 Ne8 Nh3 g1B a8Q g2 Nc3 b1Q Nd5 b2 h6+ Kh7 Ra5 Bg7 Ne7 Rf8 Q4b5 Rf3 Q5a6 Qg3 Qb4 Qe4 Qbb8 b1B Qbb6 Nb7 Re5 Qh2 Re6 Qb8 Bb2 Re1 Bf6 f1N+ Kc1 Qd4 Bh4 Ng3 Re4 Nh5 Ng5+ Kh8 h7 Qdd6 Bd3 Ba1 Be2 Kg7 Re5 Kh6 h8Q+ Bh7 Ng6 Qdc7 Re7 Nb2+ Kc2 Qf4 Qee6 Qfe5 Qhf6 Bc5 Rg1 Rd3 Bf3 Rb1 Rd1 g1Q Re1 Rc1+
b3q2K/n6Q/2pQ1B1N/1Qr1q3/1Q1nn1nQ/r3rRN1/r4bB1/k3rrR1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 e4 f5 g4 h5 a4 b3 d4+ Kb4 g5 f3 d5 f4 g6 b2 a5 f2 d6 h3 a6 h4 a7 c3 g7 c2 d7 Kb3 Qd2 h2 Bd3 f1R Ne2 h3 Qe1 f3 Qd1 f2 Ra5 b4 Be3 Bb7 Bf4 Ne7 Kf6 Nf5+ Kg6 Nc6 e5 Re1 e6 f1R g8Q Qe8+ Kf6 Bc5 d8Q Nfd4 Ng3 Re3 Qh5 c1R Nc3 b1N Kg7 Kb2 e7 b3 Bh6 Nd2 Bg5 Ne4 Rg1 h1Q Qd6 Qh2 Nf5 Qe5+ Bf6 h2 Nh6 h1N Qh4 Nhf2 Ne2 Ng4 Qh7 Bb6 Rb5 Ka1 Ng3 b2 Rb3 b1R Bc4 Rc2 Bd5 Ra2 Ra3 Rc8 a8Q Rbe1 Qa5 Ba8 Qab4 Na7 Rb3 Nc3 Bg2 Ne4 Rb2 Bc5 Rf2 c6 Rf3 Rb8 Qb5 Rb6 Qb4 Rba6 Qb5 R6a3 Qb4 Qd8 e8Q Rf8 Qeh5 Qde8 Ng8 Rf7+ Kh8 Rb7 Q5g5 Rb5 Qgh5 Bb6 Q5g5 Rc5 Qgf5 Qf7 Nh6 Qfe8+ Qg8 Rcc2 Qh7 Nb3 Qb5 Rec3 Qh1 Bf2 Qh4 Rce3 Qdb4 Nd4 Qgf8 Qf7 Qfb8 Rc5 Qd6 Qfe8+
1b1Q4/Br1r1Brn/6nB/r4bB1/2R2rqp/n1K1RpqB/1b3N1k/4NQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Ke6 e4 Ke5 d3 f5 Kd2 c5 g5 a5 b5 h5 g6 c3+ Kc2 a3 g7 a2 b6 h3 b7 a4 Qe1 a3 Qe2 h2 Qe1 f3 Qe3 h4 Kb3 f2 Kc4 f4 Bd2 c2 Bg2 c1R+ Bc3+ Qd4+ Kb3 f1R Nd2 Nf6 g8B Ra5 Qe2 Bf5 Qd1 Nh7 Bc4 Nd7 b8B+ Bd6 Bb4 Rg8 Qe1 Rd1 Ba7 Ndf8 Rc1 a1R Bf7 a2 Rc4 Rg7 Nh3 Ng6 Nf2 Bb8 Bh3 Rab1+ Kc2 Qd6 Kc3 a1N Ba3 Qd7 Bc1 Rb7 Rg1 h1Q Rg3 Qc8 Re3 Nc2 Qe2 Qg1 d4+ Kd6 d5 Ke5 d6 Qg3 d7 Na3 d8B Qd7 Ra4 c4 Bg5 Qe6 Nh1 Rf3 Qf1 Qd7 Nf2 Qc8 Nb3 Rdd7 Na1 Qg8 Rb4 Qc8 Nc2 Qg8 Kb2 c3+ Kb3 Qg4 Ne1 c2 Bd2 c1B Kc3 Rg3 Rc4 f3 Be7 Kf4 e5+ Rd4 e6 Rg1 Ned3+ Kg3 Bg5 Rdd7 e7 Kh2 e8Q Qg3 Qd8 Rg2 Be8 Qe6 Bf7 Qe4 Bh6 Qeg4 Ne4 Re2 Nef2 Re1 Bg5 Rd1 Ne1 Rd4 Re6 Rf4 Bde3 Rdd7 Bh6 Re4 Beg5 Rf4 Re3 Bb2#
BB2KRQq/1Q1Br3/bn1N1B1k/p2n1Rp1/r7/3Nq3/3r1bn1/Br1br3 w - - 0 1 illegal: No possible last move, all moves rejected
r1QQ1nb1/1Nq1B1pk/5r2/Kn1qr3/3Q2r1/1RR3bN/2pqQ3/3BbQr1 w - - 0 1 illegal: No possible last move
1b1QK3/1RbB1pnB/kNq3rn/r7/1b3pQ1/B3N1qq/4bn1R/2B1B1b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kc6 d4 Kb5 e4 c5 a4+ Ka6 h5 b5 a5 g5 h6 c3 h7 b3 d5 g3+ Kf3 g4+ Kg2 c4 d6 c2 e5 b4 e6 b2 d7 b3 e7 Qe8 d8B Nc6 Qe1 Nh6 Bc7 Nd8 Qe6+ Qc6+ Nf3 Rg8 e8Q Bd6 h8B Rg6 Na3 b1Q Bc3 b2 Be1 Qa2 Rh4 b1Q Rh2 Qbb3 Bd3 Ra7 Qf5 Ne6 Rb1 Ng7 Qd8 Bb7 Bb6 Bc7 Bc5 Qab2 Be4 c3 Nc4 Q2a3 Nb6 Ra8 Ne5 Bc8 Bb2 c1B Nec4 c2 Ne3 Bd2 Bc1 Bb4 Qfg5 Be6 Qh5 Bc4 Qh3 Kb5 a6 Be2 a7 Ka6 Be7 Rc8 a8B Qd3 Kg1 g2 Kf2 g1B+ Kg2 g3 Qg4 Qdb3 Kh3 g2 Kh4 Rb8 Rb2 Rb7 Bf5 Ra7 Bd7 Qbc3 Nec4 Bgc5 Ne3 g1B Rb3 B5d6 Rb2 Qh1 Be4 Qc6 Rb1 Bb8 Rb3 Bdc7 Bd6 Rf6 Kg5 Qg2 Bh7 Qh3 Bb2 c1N Bc5 Nd3 Bc1 Bd2 Rb5 Qc3 B5a3 Nf2 Rb3 Rd6 Rb1 Qb3 Rb2 Bb4 Rb1 Ne6+ Kf6 Ng7+ Ke7 Qd3 Nc2 Qdg3 Ne3 Kb5 Rb2 Ra5 Rb3 Ka6 Rb1 Ngf5+ Ke8 Rg6 Nbd5 Bc3 Rb7 Bb4 Nb6 Ng7#
4RRrQ/bQpq1NqN/nn5B/bqn4K/3b3r/N6b/r1p3N1/3BN2k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kc6 a4 Kd5 h4 Ke4 e3 f5 a5 b5 h5 g5 d5 f3 Kg3 b3 d6 c3 d7 b4 a6 c2 a7 f4+ Kf2 g3+ Ke1 g4 h6 b2 h7 f2+ Ke2 g2 Bd2 g3 Ra2 b3 Ra5 Ne7 Rc5 Na6 Rf5 Rg8 h8N Nd5 Nf7 Bb4 Rh7 Nb6 Nf3 g1B Rh8 g2 Ne1 Ba5 Na3 b1R Qc1 Qf8 d8N b2 Ne6 Qg7 Qd1 Ra1 Qb1 Ra2 Bc1 Rb8 a8Q+ Rb7 Qa1 b1Q Qf6 Qb3 Qa7 Rb8 Qb7+ Qd5 Bd2 Bh2 Qa1 g1B Bh3 f1N Bg4 Bf2 Bh5 Bhg1 Qf6 Rd8 Re8 Rd7 Bc1 Nd2 Qh6 Nb3 Qh8 Qc6 Rf6 Rd4 Bd2 Kd5 Kf3 Nbc5 Rf5+ Qe5 Kg4 Ke4 Bc1 f3 Nf4 Be6 Nfg2 Qg7+ Bg6 Rc4 Kh5 Qd5 Re7 Rg8 Re8 Bg3 Bd2 f2 Bc1 f1Q Bd2 Qc6 Rf4+ Kd5 e4+ Kd4 Bc1 B3f2 e5+ Kd5 Bf5 Bd4 Bg4 Ra4 Bd2 Qb5 Bd1 Bh3 e6 Bge3 Rf5+ Ke4 e7 Bg1 Bh6 Rc4 Rd5 Qd7 Rf8 Bgf2 e8N Bfe3 Nf4 Bg1 Nf6+ Ke3 Nfg2+ Kf2 Rd6 Kg3 Re8 Kh2 Nh7 Kh1 Rf6 Ba1 Bg4 Ne6+ Nhg5 Nc8 Bd1 Ba7 Nd6 Nb6 Rff8 Nec5 Nh7 Re4 Nf7 Bd4 Nhg5 Rg4 Nh7 Rh4+
K7/2np2b1/bQ1R2bR/2pr1R1r/3q1BQR/n2NR1rB/kr4r1/5nrN w - - 0 1 illegal: No proof kernel
1Q1rbrRn/2Q1b1n1/2B2bQQ/2Np4/1n1Q2r1/1pB1r1n1/1n3k2/K2qRN2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 Kb2 b5 a4 f5 h4 g3 c5 d3 c6 Kd4 c7 d2 e5 Ke3 a5 f3 a6 b3 a7 g2 h5 b4 e6 f4 h6 f2 h7 f3 e7 g4 e8Q+ Be7 Be2 f1N Nc3 f2 Ra3 g3 Bf3 Nh6 Qf8 Na6 Qf5 Rf8 h8Q Nf7 Qg8 Nh8 Kb1 b2 Ka2 b1R Rh4 Rb3 Nge2 g1B Qfh7 g2 Qgf7 Ng3 Bc6 f1N Rg4 Nf5 Bb2 N1g3 Rg8 Ng7 Qfg6 Kf2 Na4 Re3 Bc3 b3+ Ka1 Nb4 Nc5 d6 Qhh5 Bd7 c8Q Be8 Qhh6 Qd7 Qc7 Rd8 a8Q d5 Qgh5 Qg4 Qab8 Bh2 Q5g6 g1R Ra2 Qf3 Rb2 Qh5 Rb1 Qg4 Qdc2 d1N Qd2 Nb2 Qd4 Qh5 Nf4 Qd1 Nh5 Ne2 Rc1 Be5 Ng3 B5f6 Nf1 Rg4 Rb1 Ng3 Rc1 Qd2 Re1 Qd1+
NBQQ2nn/6p1/2Bq2q1/1p1q1q1r/Nq2k1r1/qN1bNR2/K5Nb/6Rn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 c4 Kf6 Kc2 Ke5 Kb3 f5 h4 d5 e4 b5 a4 d3 h5 d4 a5 g3 a6 d2 a7 g2 h6 d3 c5 f3 c6 f4 h7 f2 c7 f3 Rh5+ Bf5 c8Q Qd5+ Kb2 b3 Qe1 d1Q Qa5 d2 Ne2 g1Q Bg2 f1N Qad8 f2 Nd4 Ng3 Nc3 f1Q Na4 Nd7 Rh3 Nh1 Rf3 Bd6 Kb1 b2 Nb3 Qde1 Ka2 d1Q Bh6 Qb4 Bf4+ Ke6 e5 Bd3 Rb1 Kf5 e6 Ne5 e7+ Ke4 e8N Nf7 Nc7 Qc1 Be5 Qgd4 Bh2 Be5 Ra1 Qdd6 Nd5 Bg3 Ne3 Q4d5 Qh3 Rc8 a8N Rc4 Qhc8 Qg1 Bh3 Be5 Bd7 Qgg6 Bc6 Qf5 Bg1 Bh2 Bf2 Qdg6 Bg3 Qcd2 Bb8 Qbd6 Raf1 Rb4 Re1 b1Q+ Ka3 Qc3 Rg1 Qbc1+ Ka2 Ke5 Qcc7 Rg4 Qb7 Ke4 Qbc8 Ne7 Qa6 Qcb4 Qac8 Re8 h8N Ng8 Rh3 Re5 Rf3 Qge6 Ng6 Nh8 Nf4 Qfg6 Qf8 Rh5 Nfg2 Qef5 Qfd8 Qca3#
N3r3/1R1Np3/n1bk2nB/rR2r1r1/1nB3Nb/p2bN1q1/2b1Q3/1N1K2bQ w - - 0 1 illegal: No possible last move, all moves rejected
k1B1rQ2/p1qKN1nR/3N3Q/2B4b/n2r1Qp1/Rq4n1/nnQ3n1/b4q1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g3 Kd3 g5 Kc4 f5 Kd5 g2 c4 a3 h4 f3 e4 f4 b4 f2 h5 f3 c5 d3 c6 a2 c7 d2 e5 Na6 e6 Ne7+ Kd6 Nf5+ Kd5 Bg7 b5 Nb4+ Kc5 d5 h6 d4 h7 d3 e7 Kd7 Qe1 d1Q b6 d2 b7 Qb3 b8Q d1N Bc4 f1N Qe3 f2 Rh5 N1g3 Ba6 f1N Ne2 g1N Nd4 N1e2 Ba3 Nec3 Nc6 Na4+ Kb5 Bb2 Nc3 Ng7 e8Q+ Kd6 Qeb6 Nfe3 Ne4+ Kd5 Qe7 Bg4 c8Q Ng2 Qf4 Re8 h8Q Qd6 Qcc7 Rad8 Qef8 Bc3 Bc8 Rd7 Rb1 a1Q Rb2 Qb1 Ra2 Ba1 Rh1 Ndb2 Ne7+ Ke6 Qc2 Qf1+ Qd3 Bd1 Qg1 Bf3 Rh4 Qc7 Qh1 Bh5 Rh2 g4 Rh3 Bf7 Qh4 Nc4 Qc2 Bg6 Qhg5 Bf7 Rh7 Bh5 Nd6 Ncb2+ Nc4 N4d3+ Bb4 Nc1 Ra3 Na2 Qh6+ Bg6 Bb7 Rd4 Ba6 Kd7 Bb7 Ne2 Nd6 Bh5 Ba6 Qcc3 Bc8+ Kc7 Qe6 Kb8 Qeh6 Nc4 Kc6 Ng3 Kd7 Ncb2 Qfc1 Qc5 Qcf4 Qa5 Bc5 Ka8 Qcf2 Qab6 Qc2 Qc7+
5R2/Q2Q4/1QQB4/1K2nb1N/2B3qb/Q1qbnp2/1r1krb1p/r1b1R1Nr w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Ke7 Kd2 Ke6 g4 Kd5 a4 Ke4 a5 f5 g5 b5 d5 h5 g6 c5 a6 c3+ Kc2 f3 Kb3 c4+ Ka2 h3 e3 f2 g7 c2 a7 f4 d6 h2 d7 h4 Na3 h3 Bd2 c1B Qb3 c3 Qf7 b3+ Kb1 b4 Ba6 f1B Be2 b2 Kc2 b1R Nc4 f3 Be1 Nc6 Nb6 Qc7 d8Q Ne5 Bg3 Ne7 g8Q Nf5 Qfd7 Bc5 Qgf7 Re8 Nd5 Re7 Bc4 b3+ Kd1 b2 Kc2 Be2 Kb3 c2 Ka4 Bd3 Nf4 Rb8 Ra3 Ra1 Nh5 b1Q a8Q+ Rb7 Qa7 Rb2 Qff8 Bd2 Ra2 c1B Ra3 Bdb4 Kb5 Be1+ Rb3 Qc2 Rb4 Qd6 Qdb6 Qg6 Rb3 Re8 Bf4 Bd4 Qfa3 Bh4 Bg3 Qc3 Bf4 Ng4 Bd6 Ne5 Rb4 Qg4 Rb3 Ne7 Qdc6+ Nd5 Rb4 Kf5 e4+ Kg5 Rb3 Bdf2 Qcd7 Ne3 Qdc6 Ng6 e5 Bcf5 e6 Ne5 e7 Be1 Ne2 Bef2 Re1 h1R Ng1 h2 Rb4 Rb8 e8Q Re2 Ng7 Kf4 Qed7 Nd5 Nh5+ Ke4 Ka6 Rb7 Rb5 Rb8 Rc5 Ke3 Kb5 Rb7 Ng3 Kd2 Nh5 Ne3 Rd5 Ng6 Re5 Rb8 Re8 Ne5 Rf8 Ra8 Qac7 Ra4 Qca7 Rb4+ Ka5 Rb2+ Ka4 Rba2 Kb5 Rb2+
1nB2R2/1Bb3nn/1R5q/n7/rB1nKQN1/1r1p1bQB/1k1Np1bb/1q1B4 w - - 0 1 illegal: No possible last move
2R1q1qk/4qq1N/2nBN1r1/1Qn2Q1r/B3K1bR/1qp1p3/1bQ5/n2nQ2Q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kg7 a4 e5 g4 b5 f4 h5 d4 c5 a5 b3 f5 c3 d5 h3 g5 h2 a6 h4 d6 c2 g6 c4 d7 b2 a7 c3 Bd3 h3 Ra3 b4 Ra5 b3 Bb5 Na6 Ne2 Qe7 d8Q Rh5 f6+ Kh8 f7 Nc5 Na3 b1Q Be8 b2 Q1d5 Qa2 Qc7 b1Q Nc4 Qbb3 Ba3 c1N Nd4 Bg4 Nb6 Rb8 Nd7 Rb6 a8Q Rf6 Rg1 h1Q Ne6 h2 Ra4 Qhg2 Qab7 h1N Qb5 Nf2 g7+ Kh7 Ra8 Rg6 Nf6+ Kh6 Rf1 Qd7 Qe2 Na4 Ra5 Qb7 Qc2 Bf5 Qcd3 Rg4 Ra7 Ne7 g8Q Nb3 Qc2 Na1 Bb2 Qab3 Qb8 Qdc8 Bb5 Qe8 Nc5 Nc6 Ba3 Qg1 Ra8 Nd1+ Ke2 Bd6 f8Q+ Qg7 Qe7 Qgf7 Rf4 Rg3 Qg4 Bd7 Ng8+ Kh7 Nf6+ Kh8 Nh7 Bf5 Qh3 Rg8 Qde6 Qg5 Rh4 Bg4+ Qf3 Rg7 Bb4 Qeg8 Q6d7 Rg6 Qf5 Qgf6 Qbb7 Qfe8 Qee6 Qff7 Rc8 Be7 Qb6 Bg5 Qb7 Bc1 Qb6 Bb2 Qa5 Nb6 Ba4 Nd7 Qb5 Rgh6 Nd3 Rg6 Bd6 Nc5 Nf4 Ba3 Qd5 Bb2 Qdd2 e3 Ke1 e4 Qh1 e2 Qdc1 Ne3 Kf2 Nd5 Q1b1 e1Q+ Kg2 Qe2+ Kg3 Ne3 Qbe1 Qd3 Kf2 Nd1+ Kg2 Qd4 Kg3 Qdf6 Ne6 e3 Kf4 Nd3+ Ke4 Q7e7 Qc1 Qff7 Qc2 Nc5+
rR2Knr1/qQ6/Q2N4/Q2nQqkp/6p1/bb3R2/2N2bbQ/1q2qBBb w - - 0 1 illegal: No proof kernel
b3RbNQ/5r2/pq1bQ1nq/4Nn1r/3B1Bb1/q1q2B1q/p1B4R/3K1kB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 b4 Ke7 e4 Kd6 h4 Ke5 c4 f5 b5 d5 h5 g5 b6 d3 b7 Kd4 c5 a3 h6 f3 c6 f2+ Kd2 g3 c7 g4 e5 a2 e6 f4 h7 a6 e7 f3 e8B g2 Bc6 g3 Rh5 Qd6 Bb5 Nd7 b8B Ra7 Bc4 Ne7 Bb3 Qa3 Nh3 g1B Ba4 g2 Bb3 Nf5 Rh6 Bh2 Nc3 g1Q Ng5 Bb7 c8Q Ba8 Qe1 Ne5 Rb6 Ng6 Re6 Rf7 Bc4 Bhd6 Be2 f1Q Bb3 f2 Kd1 d2 Bc2 Qh3 Bf3 f1Q Nce4 Qh6 Re8 Qfh3 Nf6 Qge3 Ng8 Qec3 Qd8 Kc4 Ba7 d4 Bb3+ Kd3 Qe6 Qac5 Ba4 Qb6 Rb1 Qa3 Rb2 Qc3 Bg4 Qa3 Nf3 Qc3 Ne5+ Ke3 Nc6+ Kf2 Bf3 Qa3 Bc2 Kg1 Ke2 d1B+ Ke1 d3 Ne5 Be2 Bf4 Bd1 Kd2 Kf1 Qdc8 Qd8 Bg1 Qb6 Bb7 Bh5 Bf3 Bg4 Kd1 d2 Ne7 Rg8 h8B Qc3 Bf6 Rh8 Ng8 Re7 Ba4 Qc4 Qcd7 Qcc7 Nc6 Rf7 Rc2 Q6h5 Bfd4 Re7 Ne5 Qc3 Rb2 Reh7 Qg7 Qg5 Qh6 Rf7 Qh4 Qa3 Kc2 Qh5 Qhf6 Qg5 Bb3 Rh5 Qh8 d1Q+ Kc3 Bb7 Rh2 Qe1+ Kc2 Qc3+ Kd1 Qh6 Bc2 Ba8
5nnK/Q1b3pR/b4R1q/4r3/2pNRBn1/RRN2rq1/B2nn2k/1q1Q3q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Ke6 a4 Kf5 h4 b5 a5 c5 h5 f3 Kg3 c3 h6 c2 e3 c4 d5 f2 h7 b3 a6 b2 d6 b4 d7 b3 a7 Qg5 d8R Nd7 Ra4 Bd6+ Kg2 g3 Kf3 g2 Be2 f1N Rh3 Bc7 Rf8 Ba6 Nc3 b1Q Ra3 Re8 a8Q b2 Qa7 Qh6 e4+ Ke5 Kg4 Nd2 Bd3 f5+ Kg3 f4+ Kg4 f3 Rf6 f2 Nge2 g1N Nd4 f1N Rg3 Qe3 Kh5 Ne2 Kg6 Nh2 Rh3 Qg3+ Kf7 Ne7 Rb3 Rhg8 h8R Ng4 R8h7 Nf8 Ra3 Qa1 Rb3 b1Q Ra3 Nf5 Rb3 Kf4 e5 Rh8 e6 Rg8 e7 Rh8 Bb2 c1Q Ra3 Rg8 Bc2 Rh8 Bb3 Rg8 Ba2 Rh8 Nc2 Kf3 Nd4+ Kg2 Qa4 Qh1 Bc1 Qb6 Qd1 Qab1 Nb3 Qbe3 Nd4 Qh6 Rb3 Rc8 e8R Ne7 Ra3 Ng8 Re4 Re8 Rb3 Re5 Ra3 Nb3 Bf4 Nd2 Nd5 Qf2 Rhb3 Qg3 Nc3 Kh2 Rc6 Qh5+ Rg6 Ne7 Rh6 Rg8 Be3 Nd7 Rh7 Qh6 Rc6 Rb8 Re6 Rb6 Rg6 Nf8 Bg5 Nc8 Kg8 Rf6 Kh8 Rf3 Rf6 Ne7 Bf4 Ng8
2qr1k1N/1q1q1pqb/2Bb4/Q5b1/NBN1nR1q/1QR1b1Np/3Nr3/2K1n3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 h5 g4 c5 e4 b5 d4 f3 Kd2 c3+ Kc2 h3 a5 b3+ Kd3 h4 d5 f2 a6 c2 Kd2 b2 d6 h2 e5 b4 e6 c4 e7 b3 a7 c3+ Ke3 Na6 g5 Nc5 g6 Nf6 g7 Nfe4 g8N Qd7 Ra4 Nd3 Nd2 b1Q Bg2 f1Q Ne2 b2 Ng3 Qff5 Rb4 Rb8 a8N Qa1 Nb6 b1Q Ba3 c1B Qb3 c2 Na4 Ne1 Rf1 h1Q Rf4 h3 Rc4 Qg7 Bb4 Qfg5 Rc3 Qh4 Ke2 Ba6+ Ke3 Rd8 Bf3 Bd3 Bg2 Nf6 Bc6 Bh7 Ke2 Bb2 Ke3 c1B Ke2 Qd3+ Kd1 Qa6 Rc2 Bd4 Rc3 Nd3+ Kc2 Ne4 Kb1 Bb2+ Kc2 Ne1+ Kd1 Ba1 Kc1 Qf3 Rd3 Nc3 Nde4 Rb8 Bc5 Bf2 Bd5 Qda7 Ba8 Kd7 e8N Be7 Re3 Bg5 Ne7 Kd8 d7 Rb7 Qd1 Rb2 Ng6 Qc8 N8d6 Re2 Nd2 Qfg4 Bf3 Qab7 Bb4 Bg1 Bd5 Ne4+ N6c4 Be5 Rc3 Bd6 Qb3 Re8 Nh8 Ke7 d8Q+ Kf8 Qa5 Rd8 Bc6 Be3 Nh5 Qge6 Ng3 Qed7
1n1B1kNQ/2q2p2/pRrr1b2/1RQN1nQq/5KB1/6qb/Q1r3q1/rQ3r2 w - - 0 1 illegal: No possible last move
2R1R2R/r6b/2Knn1q1/2br1r2/1Bb3bN/3qn1N1/1RRQ1pp1/1r1Q1Bk1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 a4 Kd5 c4+ Ke4 a5 f5 c5 g5 h5 b5 e3 d5 a6 d3 c6 f3 c7 d2 a7 f4 h6 d4 h7 d3 Ra6 b3 Ra1 b2 Rh2 b4 Rh5 b3 Qe2 d1N+ Ke1 f2+ Kd2 f3 Bh3 f1B Qe1 f2 Ra6 g3 Nf3 g4 Rd5 g2 Rb6 g1Q Rbd6 g3 Nh4 Nf6 Rc5 Ne8 Rb6 Nd7 Rc2 Bc5 Qe2 Rg8 h8R Nf8 Qe1 Be6 c8R Rg5 Rbb8 Be2 Bf1 Rf5 Rb4+ Bc4 Nc3+ Ke5 e4 Kf4 e5 b1R e6 b2 e7 Nd6 e8R Ne6 Ne4 Ne3 Kc3 d2 Rb3 d1R Bd2 Bg4 Rb7 g2 Ng3 Qg5 Qe2 Qg6 Be1 Rdd5 Qd1 Qh1 Bd2 Qh3 Be1 Rb8 a8Q Ra1 Qa4 b1B Qa2 Ra8 Rbb2 Ra7 Re2 Bbd3 Rec2 Rb1 Qa5 Bb6 Kb4 Bc5+ Ka4 Be4 Nh1 Qf3 Ng3 Qe2 Bb4 Qd3 Rb8 Be2 Rec8 Kg4 Rce8 Kh3 Rbd8 Kh2 Rc8 Rh7 Qd8 Kg1 Ka5 Bg4 Qd7 Nb5 Ka6 Rg7 Kb7 Nd6+ Kc6 Rh7 Qd8 Ra7 Qg5 Qe2 Qf4 Bed3 Qd4 Be4 Qc3 Qd3 Qcd2 Qg7 Bc3 Rf8 Rb4 Bh7 Rbb2 Qgg6 Bb4 Rff5
Nn1bn1b1/R1rq2k1/4q2q/R1pR1BNb/5R2/b3Rr1q/p2B1Q1K/3r2Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 f5 e4 Kf7 g4 a5 Kg2 h5 d4 c5 b4 c3 d5 a3 d6 c2 d7 a4 e5 f3+ Kh2 f4 b5 f2 b6 h3 b7 h4 e6+ Kg7 e7 a2 e8Q f3 g5 a3 g6 Be7 Nd2 Ra7 Bg2 f1Q Nc4 f2 Qd2 Qe1 Be4 f1B Ne5 Nf6 Qd4 Bc4 Bf5 Rf8 Bd2 c1B Qf2 Bg8 Nc4 Qe6 Nf3 Bb2 Raf1 a1R Nb6 a2 Na8 Rd1 Ng5 Ba3 Re1 Rf7 Rhf1 Qc7+ Re5 Bd8 Qe7 Qcc6 Re3 Ne8 Qd6 Rf8 Qdg3 Qb5 Qgg1 Rf6 Kh1 h2 Kg2 h3+ Kg3 Bb6 d8R h1Q Rd5 h2 Kh3 Bd8 Kg3 Na6 b8R Rc7 Rb7 Qbd7 Ra7 Nb8 Kh3 Ba6 Kg3 Be2 Kh3 Kh6 g7 Bh5 Kg3 Qhe4 Ra5 h1Q Ra7 Qd3 Ra5 Bgf7 g8R Qc3 Rg7 Bg8 Re7 Qc1 Rf7 Qf3+ Kh2 Qg4 Bg6 Rf3 Rf4 Kg7 Bf5 Qa1 Rfa4 Qaf6 Ra7 Qg6 R4a5 Qh6 Qe2 Rg3 Rf4 Rf3 Qef2 Qh3+
K1b5/2n2kB1/3bRb1n/q1p2RQr/1p3r1N/R1RBr3/QRN4q/1rqq4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 f5 d4 c5 g4 b5 a4 c3 e4 c2 d5 b3 g5 h3 d6 b4 d7+ Ke7 a5 b2 a6 h4 g6 h2 g7 h3 a7 Rh6 e5 Rh8 e6 Qa5 d8R Qa4 Rd2 Qa5 Ra3 Na6 Qe2 Rh5 Rc3 Nh6 Na3 b1R Bb2 c1B g8Q Rb8 Ba1 Bb2 a8R Kf6 Qf2 Bd6 e7 Rb6 Qg5+ Kf7 e8R Rc6 Rc1 Bf6 Bd3 Rc7 Bc3 Re7 Rb2 Re2 Re6 Re4 Qd2 Re3+ Kf2 f3 Nc2 f4 Qe2 Bd8 Bg7 B8e7 Re5 Bf6 Rf5 Be6 Re8 Bd7 Re6 Bc8 Kf1 f2 Nf3 Nc7 Rg1 h1Q Nh4 Qh2 Rg3 Na6 Qd2 Rf3 Ke2 f1R+ Rg2 Rg3 Rf2 f3+ Ke3 Nc7 Ke4 Na6 Rg2 f2 Kd5 Re3 Kc6 Qe5 Rd1 h2 Rc1 h1Q Rb3 Qf4 Ra3 Qhh2 Qe2 Qg4 Qd2 Qd1 Qe2 Bd7+ Kb7 Bc8+ Ka7 Rh1 Ka8 f1Q Ne1 Qff4 Qa2 Rf1 Rcc3 Qc4 Rb2 Rf4 Bc2 Qf1 Bd3 Qc1 Nc2 Qfe1 Be4 Qed1 Bd3 Nc7+
Kb1rBn1Q/b1q1n2B/1pB1r2q/6q1/R6q/Br1Npb1N/1Q4r1/4R1Bk w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 a4 Kh5 f4 Kg4 c5 Kg3 f5 d5 f6 e5 a5 h5 a6 e3 Kd3 e4+ Ke2 b3 a7 h3 c6 h4 f7 h2 c7 h3 Ra3 d3+ Ke1 d4 Bd2 b2 Bc3 d2+ Ke2 Ne7 Ba5 Rg8 Bb6 Nd7 Qc2 d1R Nc3 b1R Bc5 Rb3 Na4 b6 Nb2 Bb7 c8Q Qc7 Qe8 Rd8 a8B Rg6 Qc1 Re6 Ra4 Bh6 f8B Bf4 Nd3 Rd2+ Ke1 e2 Qb2 Bd5 Bc6 Be5 Ba3 Rc2 Bh6 Nf8 Be3 Bf4 Qh5 Rd2 Qh8 Be5 Nf3 Bd6 Rg1 h1Q Ng5 Kh2 Kf2 Be5 g4 Bf4 Nc1 d3 Be8 Rc2 Bg2 d2 Nd3 d1Q Re1 Qc1 Bf3 Bd6 Bd4 Rd2 Ke3 Qg2 Bdc5 Qg3 Kd4 Qh4 Nh7 Rc2 g5 Bg3 g6 Qcg5 g7 Bd6 Ra1 e1B g8B Beg3 Re1 Bc6 Bh1 Rg2 Kc4 Bgf4 Bf2 e3 Bg1+ Kg3 Kd4 h2 Kc4 Bf3+ Kd4 Qf5 Ng5 Qfg4 Nh3 Qgg5 Ra7 Qc2 Ra4 Bb8+ Bd7 Ba7 Bh7 Rc8 Be8 Qc7 Bc5 Rd8+ Kc4 Rc3+ Kb5 Rb3+ Ka6 Qc6 Bd4 Bfb8 Bc5 Qc7 Ba3 Rd2 Bg2 h1Q Bf1 Rg2 Bc6 Qce5 Kb7 Qc7+ Ka8 Qhh6 Nhf2 Q1h4 Nh3 Rd2 Be2 Kg2 Bd1 Kh1 Be2 Be4 Bh5 Bf3 Be8 Rg2
qb1Bk3/b1r2p2/1qN1N1r1/1b2Q1R1/R3QR1n/4nb1n/rrB1p3/1K3RR1 w - - 0 1 illegal: No possible last move, all moves rejected
2Nn1rB1/nBQp4/2Qq1n1K/1R2NBb1/r7/1b1q4/1B1k2pb/qRb3qB w - - 0 1 illegal: No proof kernel
b2Q2q1/1p4NR/K4bQ1/2NRn1Rq/4q1Bp/1n3r2/RR1r1Bkn/1n2q1r1 w - - 0 1 illegal: Other
n3r2R/2N2n1R/1r1RQ1qr/1Q2n3/1pK2Bbp/b2R2n1/2krB3/1nN2Rn1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Qd3 h3 Kd2 b3 e4 Ke7 g4 Kd6 a4 Kc5 c4 Kb4 e5 b5 e6 d5 e7 f5 e8R h5 g5 f3 g6 h4 a5 f4 g7 b2 a6 f2 a7 f3 c5 h2 c6 Qb6 c7 Bg4 c8Q Na6 Ra3 Nc7 Re5 Nh6 g8R Qg6 Qe2 d3 Qf5 d4 Ra4+ Kb3 Na3 b1N+ Kd1 d2 Re6 Re8 Bg2 f1R+ Qe1 f2+ Bf3 Bd6 Ke2 d1N Kd3 Ndc3 Qd2 Ne2 Qe1 Rh7 Nc2 Ba3 Ne3 Rh8 Rc4 b4 Nd5 Rh7 Rg7 Rhh8 Ke4 d3 Rd4 d2 Kd3 d1R+ Bd2 Kb2 Kc4 Rh7 Rd3 Kc2 Bg5 Rd2 Rb6 Rhh8 Qd7 Rh7 Qb5 Rhh8 Rg8 Rh7 a8R Rh8 Rd8 Na8 Rb7 Rh7 Rbg7 Nf7 Nc7 Rh6 R8d4 Rb8 Rh7 Rb6 Nh3 Rg1 Bf4 f1N Rd6 Nfg3 Rgh8 Rg2 Rf1 Rf2 R3d4 h1N Ng1 Rh2 R4d5 Nf2 Rd4 Nd3 R4d5 Nec3 Ne2 Rg2 Nc1 Nce2 Rd4 Ng1 Qee8 Rge2 Qed7 Re3 Be2 Re8 Qe6 Nc5 R4d5 Nd7 Rd3 Nde5+
1KR2R2/np3B1R/1p1Q2q1/3R3b/kq6/Np1rQbRN/4r1rB/b1n1nq2 w - - 0 1 illegal: No proof kernel
1NrNr2R/q2b4/1q1Q1Rr1/2NBp2n/QKprNp1k/B3b2r/5N2/2n4q w - - 0 1 illegal: No proof kernel
5Q2/4bNB1/RBpq2b1/2Qq1B2/1nbB1BK1/pnN3pb/2r1R3/2q1rb1k w - - 0 1 illegal: No proof kernel
K2B1NrB/5p1B/1r3b2/1n1N1Rrq/2QB2kp/rrnb3q/1qQ4p/3R2B1 w - - 0 1 illegal: No proof kernel
3Rb1rN/1Qnpb1Bb/1n1p4/4b1p1/q2k4/R2N2Q1/RRn1B1K1/1rbR3q w - - 0 1 legal: proof: e4 f5 g4 fxe4 d4 a5 b4 axb4 d5 h5 d6 hxg4 Be2 cxd6 Ba6 Nf6 Bf1 Ng8 h4 Kf7 c4 Ke6 a4 Ke5 h5 g5 a5 b5 f3 b3 Kf2 e3+ Kg2 g3 h6 b2 h7 e2 c5 e1B a6 b4 a7 b3 c6 Qa5 c7 Na6 Na3 b1B Rh3 b2 Qd2 Bg6 Rh1 b1Q Qd3 Qa4 Nh3 Bd2 Ra2 Nf6 Nc2 Rb8 a8R Bb7 c8Q Nc7 Ne1 Bbe4 Qb7 Nfd5 Be2 Rg8 h8R Nb6 Nf4 Be8 R8h2 Bh7 Bb2+ Bc3 Ra6 e6 Ba1 Be7 Ra3 Bd4 Qb3 Bc3 Ned3+ Kd4 Rd1 e5 Ng6 e4 f4 e3 f5 Qc1 f6 Bb2 Kf3 g2 f7 g1B f8R Qcc6+ Kg3 Qh1 Nh8 Bf2+ Kh3 Bg3 Ra2 Be5 Qa3 Bf7 Rd8 Be8 Qb3 Qc4 R6a3 Qa4 Bh5 e2 Bf3 e1N Be2 Qhc6 Rf2 Nc2 Qc3+ Ke4 Kg2 Bc1 Qe1 Bh2 Bg7 Be5 Rf3 Kd4 Qg3 Qc3 Rf5 Qe1 Rf2 Nba8 Qc6 Rb1 Qb7 Nb6 Bf1 Nb4 Rfb2 Nc2 Be2 Qh1+
qk6/p3p2n/Qb4Bp/nR1NK1n1/Nb4bN/r1R2nrN/qB2n3/1Q3N2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 d5 f4 Kd7 c4 Kc7 b4 e3+ Kd3 a3 g4 h3 b5 h2 f5 e2 f6 a2 g5 Bh6 g6 Be3 g7 Nc6 f7 Nf6 g8N Na5 f8N e1N+ Ke2 h6 Qd3 Nh7 c5 Rb8 Nf6 Rg8 c6 Rg3 Ng6 Qg8 Nh4 Rb6 Nd2 Bg4+ Nhf3 Rb8 Rb1 a1B Nh3 Bc3 b6+ Kc8 Rg1 h1Q b7+ Kc7 Qa6 d3+ Kd1 d4 Ba3 Be6 Nh4 Bg4+ Kc1 Qa2 Rb3 Rc8 b8Q+ Kd8 Qb4 Kc7 Bg2 Rb8 Be4 Rb7 Bg6 Kb8 Rf1 Qe4 Rf4 Nf3 Rf5 Bg1 Nf1 d2+ Kd1 Be3 Ke2 d1N+ Nd2 Nf2 c7+ Ka8 c8N Kb8 Nb6 d3+ Kf1 Rd7 Na4+ Bb6 Rb5 Qa8 Bc1 Rc7 Nd5 Ne4 Ra3 Rc4 Qb1 Neg5 Bb2 Bb4 Rb3 Rc3 Ra3 Nd4 Kf2 Rb3 Nf1 d2 Bf7 Rbc3 Bg6 Ndf3+ Ke2 d1N Rb3 Rc6 Kd3 Nc3 Ra3 Ne2 Rb3 Nf7 Ke4 Rc2 Rd3 Rc3 Re3 Ra3 Rd3 Ne1 Rc3 Nfg5+ Ke5 Nef3+
3R1N2/3qkr2/4qnn1/R1Nbp1Q1/qp3bB1/3B1p2/n1r3KB/n1B1BQb1 w - - 0 1 illegal: No possible last move
1b6/N2Q1R1n/N1Kb3k/p1b5/1rQ2rBN/NNqR4/p4qp1/2rbB1qn w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 h4 Kg6 c4 e5 b4 d5 f4 a5 h5+ Kh6 b5 g5 c5 a3 f5 e3+ Kd3 a2 c6 e4+ Kc2 e2 Kb3 e1B Ka4 e3 b6 e2 Kb5 d3 f6 d4 f7 d2 c7 d3 b7 g3 Qa4 d1R Nc3 g2 Qb4 d2 Qd6+ Qf6 Nb1 g4 Na3 g3 Rh3 Ne7 Qd7 Nf5 Nf3 g1B Nd4 g2 Nb3 Bgc5 Rd3 Bfd6 f8N Qc3 Ng6 Beg3 Nh4 e1Q Be2 Rf8 Bg4 Qf2 Bb2 Rh1 Rf1 d1Q Bc1+ Bgf4 Bd2 Ng3 Be1 Ra7 Qd8 Bf5 c8N Nd7 b8N Nf6 Qd7 Nh7 Kc6 Rb7 Na7 Rb4 Na6 Rg1 Nc4 Nh1 Na3 Kg5 h6 Bh2 Rd2 Bc2 Rd4 Rf4 Rd3 Nf6 h7 Kh6 h8Q+ Nh7 Qd4 Qb1 Qc4 Bd1 Bd2 Qba1 Re1 Rf1 Re7 Qac1 Be1 Qce3 Nb1 Qg1 Na3 Qef2 Rf7 Bb8 Qde6+ Rf6 Kd5 Bhd6 Kc6 Be2 Qd7 Rf4 Bd2 Rc1 Be1 Bd1
1N1N4/2n2Rr1/b3pb1p/1qq1B2R/p1QN4/4b1r1/2K1BN2/knbQNn1q w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 a5 c3 e6 f5 a3 f6 h6 b5 e3+ Kc2 a2 f7 a4 g5 d3+ Kb2 Kc4 b6 d5 g6 d4 b7 e2 g7 e1B Bh3 d2 Rh2 d3 Nf3 Qg5 Re2 Ne7 g8N Qc5 Nd4 Na6 b8N Bf2 Re4 Ra7 Nf6 Rg8 Re5 Nf5 Nbc6 Ne3 Rh5 Rg3 Nd8 Nc7 Ne4 Nf1 Bg4 h3 Be2 Be3 Nf2 Bd6 f8N h2 Nd7 h1Q Nb8 Bdf4 Nc2 Ba6 Ne1 Kb5 c4+ Kb4 Nc3 Qb5 Qc2 d1Q c5 d2 c6 Qc5 Rb1 Bg5 Nb5 a1B+ Ka2+ Bb2 Nd4 Bf6 Ra1 Ba3 Kb1 Rb7 Qd3 Qb3+ Bb2 d1N Qc2 Qbc4 Qd2+ Nc3+ Kc2 Q5b5 Qd1 Qcc5 Ra2 Ra7 Ba1 Bac1 Ra3 N7d5 c7 Nb1+ Rc3 Rb7 c8Q Rbg7 Rc4+ Ka3 Bc3 Qe7 Rc7 Qec5 Rf7 Ka2 Qc6 Nc7 Qe4 Bb2 Qd5+ Ka1 Qc4 R7g4 Nf5 Rg8 Be5 R8g7 Nd4 Bbc1
4RBRr/1B1k4/2pr1qK1/3NR3/pRn1n3/rQq1bqbp/3RQ1bq/5N2 w - - 0 1 illegal: No possible last move, all moves rejected
BB2rBn1/nq3p2/1B3rQp/2b1Q1R1/N2pRK2/r4b1B/5r1k/q2Nn2q w - - 0 1 illegal: No proof kernel
2QKb3/2n3q1/B1rR1bNN/1prb2n1/1QN5/pb1qR1B1/3p2N1/bbkN4 w - - 0 1 illegal: No proof kernel
R3N3/prNp3b/1qNNB2q/Q1p1K3/r6b/Q4rrn/rN1BR3/3r1nk1 w - - 0 1 illegal: No proof kernel
b1n4Q/b6B/pRb2Kp1/1Bnn1B1Q/rnN5/p1Rrr3/1B3rB1/1k2Nq2 w - - 0 1 illegal: No proof kernel
3R2qn/2n2QB1/6bQ/rRN1R3/pr1b4/nbkpqRbK/Rn2p3/2N4B w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 Kf2 Kf6 b4 d5 c4 e5 g4 a5 Kg2 h5 f5 d3 b5 a3 c5 d4 b6 e3 c6 a2 b7 e2 c7 e1N+ Kh3 e4 g5+ Ke5 g6 e3 g7 e2 Rh2 a4 Na3 d2 Rf2 d3 Rf4 Ne7 g8R Na6 b8R Be6 c8R Ng6 Bg2 Bd6 Rf2 Kd4 Be4 Bb3 f6 Bg3 f7 Nc2 f8Q Nc7 Qf4 Kc3 Qg5 Ra5 Nc4 Na3 Qf1 d1N Qh6 Nb2 Nd6 Qf8 Rg7 Qg8 Re7 Rh7 Bd5 Nh8 Rd8 Rf7 Ree8 Rf4 Bh1 Re4 Nb7 Rb4 Rb1 a1B Nc5 Bd5 Rb5 Be4 Nf3 Bg6 Kg2 h3+ Kg1 h4 Nd2 h2+ Kg2 Rf4 Re5 Rb4 Ndb3 h3+ Kf3 Nac4 Kg4 Na3+ Bf4 Nd1 Nc1 Nb2 Bb7 h1B Rf3 h2 Kh3 Be4 Bg5 Bd5 Bf6 Bb3 Rf2 Bhd5 Bg7 Bf7 Rf3 Bg6 Bc6 Nbc4 Rb2 h1Q+ Kg4 Qh2 Ra2 Qf2 Kh3 Bb2 Rf4 Ba1 Bh1 Nb2 Rf3 Qd4 Rfe3 Qe4 Qf7 Qd4 Rf3 Qf2 Qe8 Qe3 Qf7 Nd1 Qf5 Kc4 Red5 Bd4 Qf7 Nb2 Re5+ Kc3
Nq1N1B2/bNr5/2pr1nK1/2b5/2N1npbk/Qp6/RNQn4/qb2RB1n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 a4 b5 d4 f5+ Ke5 h5 e4 h3 g4 c3 a5 c2 a6 h4 a7 c6 d5 h2 d6 b3 d7 b2 Be3 c1B Ra2 h3 Na3 b1B Bc5 f3 Nc4 f4 Ne2 f2 Qc2 b4 Nc3 b3 Na4 Rh6 Nab2 Kh4 Kf5 Na6 e5 Nf6 g5 Be3 e6 Bd4 Bd6 Nc5 g6 Nce4 g7 Be3 Bb4 Bfc5 g8Q Qb6 d8N Qb8 Rg1 h1N Qf8 h2 Qe7 Rh7 Kg6 Rf7 Qf8 Rc7 e7 Bg4 e8N Bed4 Ned6 Be3 Bd3 f1N N6b7 Nfd2 Qd6 Nhf2 Re1 h1Q Bf1 Qg1 Ra1 Nh1 Qf8 Bb6 Qe7 Bec5 Ra2 Qd4 Nd1 Qa1 Ndb2 Qc8 Ba3 Rb8 a8N Ba7 Nba5 Rb5 Nab7 Qb8 Qd6 Bcb6 Qb4 Rd5 Qa5 Rdd7 Bf8 Rd6 Qa3 Bc5
Qn1B3r/1N6/1pbB1q1Q/1pp3Bq/6qr/2nK2Br/1RB1q2b/1r2RN1k w - - 0 1 legal: proof: e4 d5 b4 h5 c4 dxc4 g4 hxg4 b5 f5 b6 fxe4 Ke2 axb6 Ke1 b5 Ke2 Kd7 f4 Kc6 d4 Kd5 a4 g5 h4 e5 f5 c5 f6 c3 f7 g3 h5 g4 h6 g2 a5 c2 a6 g3 h7 e3 a7 Ke4 d5 b6 d6 Bb7 d7 Nf6 Rh2 Bc6 Bd2 c1R Ra5 Bd6 f8B Rc3 Bg7 Nd5 Nh3 g1R Bf8 g2 Ra1 Qf6 d8B Rc4 Nf4 Nc3+ Ke1 e2 Qc1 Kf3 Ne6 e4 Bg5 Bg3+ Kd2 e3+ Kd3 e1Q Bd6 e2 Nd2+ Kf2 Rb1 Qd1 Rb2 e1Q Rh1 Qee5 Be2 Qe1 Bd1 Bh2 Bc2 Rh4 Nf1 Kf3 B8e7 Rh3 Nd8 Qh4 Qd2 Qh5 Nb7 Qee6 Bd8 Qeg4 Ne3 Rb1 Re1 g1Q Nf1 Qf2 Bg3 Kg2 Qc1 Rg8 h8B Kh1 Bg7 Rh8 Bf8 Qhf7 Qd2 R8h4 Bd6 Qfh5 Qe3 Nd7 Qe6 Rc8 a8Q Nb8 Qe8 Qg2 Qf8 Qgf2 Qh6 Qg2 B8e7 Rh8 Bd8 Q2e2+
n1rN1q1B/1n4np/7p/1B1p1b1n/Q1rr3b/RBBBK2k/R7/1Q1Nrq2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 h4 fxe4 h5 a5 h6 axb4 Qe2 gxh6 Qg4 Bg7 Qd1 Bf8 Ke2 Kf7 g4 Kg6 f4 b5 c4 e5 a4 d5 c5 e3 a5 b3 g5 Kf5 a6 Kg4 c6 b4 g6 d3+ Ke1+ e2 Kf2 b2 a7 b3 c7 e4 g7 d2 f5 Na6 f6 Bf5 c8B Be7 f7 Bh4+ Ke3 Nc7 f8B Nf6 g8B Nh5 Ba6 Rc8 Nc3 b1R a8Q b2 Nf3 e1N Bb4 Nd3 Be6 Nc5 Bab5 Qf8 Ra3 Nb7 Qaa4 Na8 Bfd3 Rc4 Bed7 Rg8 Rf1 Kh3 Ne5 Ra1 Qdb3 b1Q Nf7 Rg4 Nd8 d1N+ Kd2 Rf4 Bb2 Ne3 Rf2 Qf1 Nd1 Rac1 Bh8 Rc8 Be8 R1c4 Bbc3 Qf6 Ba6 Bd7 Qab5 Nf5 Qb1 Qf8 Re2 Nfg7 Q5b3 Rb4 Bac4 Bf5 Qa4 Rg4 Ba2 Rbc4 Bb3 Rf4 Bb5 e3+ Kc1 Rfd4 Rea2 e2 Kd2 Rg4 Ke3 Rgf4 Rb2 Rfd4 Rba2 e1R+
1n1B1r1K/Q2Bp3/1b1Bn1b1/n3R1q1/2N2q1N/1BpRp1pQ/r1r3q1/4k2B w - - 0 1 illegal: No proof kernel
B3KR2/2Qpq2N/5Brr/Q7/1QQ1p2q/1rp1np2/1knQN1b1/R3bnq1 w - - 0 1 illegal: No proof kernel
5kb1/1R1r3r/r1B3r1/1bpp1r2/1BqN1b1K/R2Q1Qp1/n1N1p3/n2NNN2 w - - 0 1 illegal: No proof kernel
r1Q1q2n/3Qp1Q1/1Br4Q/bp1b4/knN2Q1p/3B1KRn/1R2pN2/1b4rr w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 d5 f4 Kd7 g4 Kc6 c4 h5 a4 h3 g5 h2 c5 b3 f5 h4 a5 Kb5 c6 e3 g6 b2 a6 d3+ Kf3 d4 c7 Nc6 a7 Nh6 g7 Nf7 g8Q Be6 c8Q Bh6 f6 Qe8 Qg4 Nb4 Nd2 b1B Nc4 d2 Qf4 d3 Ra2 b6 Rc2 Ka4 Nh3 b5 Rg1 h1R Rg3 Rf8 Nf2 Nh8 f7 Bd5+ Qe4 Rg8 f8Q Rg6 Qg7 Rc6 Qe6 Bf4 Qeh6 Bc7 Bb2 Rg1 Bd4 Ba5 Bb6 Rh1 Bh3 e2 Bf5 Be6 Qed4 Bd5+ Be4 Rg1 Qf1 d1R Rb2 d2 Qd3 Rac8 a8Q Rc1 Qb7 Ra8 Qc8 Re1 Qdd4 d1N Qfh3 Rh1 Qhd7 Reg1 Qdf6 Bf7 Bd3 Bd5+ Ne4 Nf2 Qff7 Be6 Qff4 Nh3 Nf2 Bd5+
NNK4b/3q1b1B/3r1nNn/2kp4/1pr1bQ2/4N3/1p1pqBbR/1R2NQ1b w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 h5 Kf5 b5 a4 d3 g4 h3 c4 f3 e4 f2 c5+ Kc6 e5 d5+ e6 h4 a5 h2 g5 f6 a6 b3 a7 b4 g6 h3 g7 b2 Nf3 Qb6 Na3 Qd8 Nc2 Qd7 Ne3 Rh7 Ne1 Rh4 Rb1 Rc4 Qe2 Kb5 c6 Kc5 c7 Bd6 Qf3 Be5 Qf4 Bd4 Bg2 f1Q Be4 Qe2 Bd2 Be5 Bc3 d2 Qf1 Ba6 c8N Bb5 Ne7 Ba4 Nc6 Nh6+ Kg6 f5 g8N f4 e7 f3 e8Q f2 Qf7 Bf6 Nge7 Bh8 Qf4 Bc2 Kg5 Bd3 Bh7 Bg6 Be5 Be8 Ng6 Bf7 Qg2 f1B Bd4+ Kb5 Qgf2 Bg2 Qf1 Be4 Rg1 h1B Rg2 h2 Rf2 Na6 Nb8 Bhg2 Bb6 h1B Bc5 Bh3 Rh2 Nc7 Bb6 Ne8 Bd4 Ng7 Kf6 B3g2 Bc5 Qc8 Ke7 Nh5 Bd4 Nf6 Bc5 Qh3 Kd8 Qe6 N3c2 Q6g4 Bf2 Qh3 Ne3 Kc5 Kc7 Qe6 Nc6 Rf8 a8N Rd8 Nb8 Rd6 Kb7 Qe7+ Kc8 Qd7+
1B1Q1N2/4B2R/2k5/2B1b1Kb/2B1pp1r/1r1R1p2/qbpq1rNn/1nB2Qr1 w - - 0 1 illegal: No proof kernel
N1r1RQ2/nR1Bb2p/b2qp3/n2kp3/1qR2n2/nrB5/3N3p/rR1Q2KR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 d4 gxh4 e5 c5 e6 cxd4 Bd3 fxe6 Bf1 e5 a4 Kf7 f4 Ke6 Kf2 b5 g4 d5 c4 d3 g5 b3 g6 h3 g7 b4 c5 b2 a5 d4 c6 b3 a6 d2 a7 d3 f5+ Kd5 f6 e6 f7 Ne7 g8R Qd6 c7 Nbc6 Rg3 Na5 Rg7 Nec6 Nf3 Be7 f8Q Rb8 a8R Ba6 c8R Na7 Na3 b1N Re8 b2 Nc4 Na3 Kg1 b1Q Bb2 Rb3 Bc3 Qb2 Rac8 Rg8 Qb1 d1N Nfd2 Ne3 Qd1 Ng2 Rb1 Nf4 Rc7 Rh8 Rb7 Rg8 Rg4 Rh8 Ne4 d2 Nb6+ Kc6 Na8 Kd5 Bb5 Rg8 Qf1 d1R Bd7 Rc1 Qd1+ Qd2 Bd4 Q2b4 Nd2 Rh8 Bc3 Rg8 Rb2 Ra1 Rb1 Ng2 Rc4 Nf4+ Qg7 Rf8 Reb8 Rc8 Qf8 Rc7 Rd8 Rc8 Re8 h2+
Nn1QR2q/5p2/1n1pB2Q/qk1pR2n/3Q4/4N2b/qb1Q1p1Q/q1rrB2K w - - 0 1 legal: proof: f4 a5 h4 e5 d4 exf4 b4 axb4 h5 c6 d5 cxd5 h6 gxh6 Be3 h5 Bc1 h4 Kf2 b5 e4 h5 c4 d6 g4 Kd7 Kg2 Kc6 a4 b3 e5 b4 c5 b2 e6 b3 a5 Rh6 a6 Nf6 g5 Nh7 g6 Qe7 a7 Ba6 g7 Ng5 g8Q Nh3 Qg6 Qd8 e7 Bg7 Qd2 Bc8 Nc3 b1N Nge2 b2 Nd1 Na3 Ne3 b1Q Nc3 Nc4 Na4 Qa5 Nb6 Kb5 c6 Bb2 e8Q Qba2 Qh8 f3+ Kh2 f2 c7 Rh7 Qhd4 Nf4 Qh6 Bh3 c8Q Rg7 Qd8 Rg1 Be2 Re1 Bg4 Rd1 Nc8 Nb6 Be6 Bg2 Q8h8 h3 Re1 h4 Q8h7 Bf1 Kh1 h2 Qhh8 Bh3 Rb1 Na4 Nb6 Nh5 Qhe5 Nd7 Ra1 Rc8 Na8 Nab6 Qef4 Nb8 Qg3 Bc3 Ba3 Bb2 Bb4 Rcc1 Qg2 Qb3 Ra3 Qa2 Rc3 Ba3 Rc8 Bb2 Re8 Rc7 Nc4 Q5a3 Qhe3 Rb1 Qc2 Qa5 Qgg3 Na4 Nab6 Bf5 Kg2 Nf6 Qef4 Rc8 Re5 h3+ Kf3 Rf1 Ne3 h1Q+ Qg2 h2 a8Q Nc6 Qc1 Qg1 Qh4 h1Q Qe1 Rc7 Qd8 Nb8 Na8 Nb6 Qh7 Qh4 Qh2 Bh3 Qg7 Qh8 Qh6 Nh5 Bd2 Qg6 Qc1 Rd1 Be1 Qgb1 Qcd2 Ng7 Kg3 Rcc1 Kf3 Qba1 Kg3 Bf5 Kg2 Nh5 Kh1 Bh3
1b2N3/1b1NKp1N/1Qpr4/4NqN1/5p2/r2nRp2/k2rQ1B1/BRbnq2b w - - 0 1 illegal: No proof kernel
3r2kB/p1NNQ2R/2n2rpr/nK2b1rR/1R2R1Bp/8/b1ppR3/Q5rq w - - 0 1 illegal: No proof kernel
2N2kr1/b1R2p1Q/1b1NbK2/2Q4p/rRNB2n1/p3pp1p/Bp2qnN1/7N w - - 0 1 illegal: No proof kernel
1n1r4/1Q4r1/nB1pn2r/3R1b1N/k2rQ1r1/2Q1B3/2b1pK2/1NQR3N w - - 0 1 legal: proof: e4 c5 h4 g5 d4 gxh4 a4 cxd4 e5 b5 axb5 a5 e6 fxe6 Bd2 e5 Bc1 e4 b4 a4 b6 Nc6 b5 Nh6 b7 Ng8 Bc4 Bh6 Bb3 axb3 Bxh6 Qb6 Bc1 Qa6 b6 Nb8 Rxa6 Kf8 Ra1 Ke8 f4 e5 c4 h5 g4 d3 f5 h3 g5 e3 g6 h2 c5 b2 f6 e4 c6 d6 c7 Kd7 f7 Kc6 f8Q Kb5 g7 e2 Qf4 h4 Ra3 h3 Rc3 d2+ Kf2 e1N Qh5+ Ka4 Na3 b1B Ne2 d1R Qhh4 Rh7 Rd3 Nf6 g8N Bf5 c8Q Nc2 Qc3 Nb4 Rd5 Bc2 Nb1 Rg7 Ng3 Nh5 Be3 Rd4 Rd1 h1R Nf6 Rg1 Nh1 h2 Qh6 Nf4 Nh5 R1g4 Q6g5 Nd7 b8Q Ne6 b7 Na6 Qa7 Rh8 b8B Rd8 Bc7 Nb8 Ba5 Nd7 Qb7 Ndb8 N1g3 h1R Bb6 Rh3 Nh1 Rc4 Bec5 Rd4 Qc1 e3+ Ke1 e2 Kf2 Rb4 Be3 Rgd4 Qe4 Rbc4 N5g3 Rh6 Nh5 Rb4 Qed3 Rdg4 Qe4 Rd4
bK1BR2Q/1B1qBN2/2rbbb2/4R1n1/B5q1/b2Q4/1qNn3R/n1rk4 w - - 0 1 legal: proof: f4 a5 b4 d5 a4 e5 c4 exf4 cxd5 g5 e4 fxe3 h4 b5 axb5 gxh4 Rh2 axb4 Rh3 Qd6 Rh1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 h5 b6 f4 g5 h3 d6 f3 d7 h4 g6 e2 d4+ Kc4 d5 c5 d6 b3 g7 h2 b7 f2 Nc3 b2 Nb5 b1Q Ra2 h3 Qd4+ Kb3 Bd2 e1B Qd5+ c4 Qe4 c3 Bg5 c2 Ra1 c1B Ke6 Nc6 b8Q Rh6+ Qg6 Nf6 g8B Ba3 Qf7 Kc2 Bg2 f1N Ne2 Ne4+ Qg6 Qb2 Be7 Bc3 Re1 Nb4 Ned4+ Kd2 Nc2 Bf6 Re3 Kd1 Bf7 Ra6 Be8 Rc6 Qg3 Rh5 Re2 Rhc5 Qd3+ Nd2 Re5 Rc3 Ne1 Rc1 Nc2 Qc7 Qa8 Qa7 Be4 Qg1 Bg2 Ng3 Bd5 Ne4 Qb8 Bb7 d8B Ng5+ Kd7 Ba8 Qc8 Rb6 Bb7 Rc6 Na1 Nc2 Qb8 Nd4 Nc2 Nb3 Qc8 Na1 Qb8 Ra6 Kc8 Rb6 d7 Rc6+ Bc7 Bd6 d8R Ba3 Bd7 Bd6 Re8 Ba3 Ne1 Qgd4 Nd6 Qg4 Nf7 Bd6 Rg1 h1B Rg2 h2 Nc2 Ba3 Rf2 Bd5 Rg2 h1Q Rh2 Rb6 Bcd8 Be6 Kc7 Qd5 Ba4 Ra6 Qc8 Qd7+ Kb8 Rb6 Qcc3 Rc6 Qcd4 Qh3 Qh4 Qg4 Qh8 B6g7 Bf6 Bfc5 Bfe7 Bf6 Qb5 Bcb4 Qd3 Bd6+
3qQ1B1/kqrq3R/NNp3BK/r3Q2B/1BrR4/7q/4b1pq/3Rbn2 w - - 0 1 legal: proof: b4 a5 g4 axb4 a4 d5 f4 h5 c4 dxc4 f5 hxg4 f6 b5 axb5 Na6 bxa6 exf6 Ra4 f5 Ra1 f4 Kf2 Kd7 d4 Kc6 h4 Kb6 e4 g5 d5 f5 a7 c3 d6 b3 h5 b2 d7 g3+ Kf3 g2 h6 c2 e5 Rh7 e6 Bb4 e7 Be1 e8B Nf6 Qe2 Ne4 Nd2 b1Q Bh5 Ba6 Nb3 Ng3 Ba3 c1R Nh3 g1Q Qe5 Rc4 Bb4 Qh2 Bd3 Nf1 Nc5 Rf7 h7 c6 h8Q Qbb2 Qhe8 Qd4 Rd1 Qd6 Q5e7 Q6b8 Qe5 Qb7 Nf2 Bb5 Na4+ Ka6 Nb6 g4+ Ke2 g3 Kf3 g2 Be4 Rh7 Bd5 Rg7 Bg8 Rf7 Ne4 Qh3+ Ke2 f3+ Kd3 f2+ Ke2 Qg5 d8R f4 R8d4 Rc7 Rh2 Qd7 Kf3 Qge7 Bg6 Qed8 Rh7 Qh3+ Ng3 Qh2 Kg4 f3 Ne4 Ng3 Qd6 f1Q Rd5 f2 Qde5 Qd3 Rdd7 f1Q Bh5 Qf7 Rd4 Qd6 Kg5 Qd8+ Kh6 Qa3 Qc5 Rc2 Qce5 Be2 Nc5+ Kb5 Rf4 Nf1 Rfd4 Bh4 Bg6 Qfd7 Bh5 Qah3 Bg6 Rac8 Bh5 Be1 a8B Qa6 Bb7 Ra8 Ba3 Qa7 Ba6+ Ka5 Bb5 Qb7 Bd3 Rc4 Bb4+ Kb5 Bg6 Ra5 Nd3+ Ka6 Nc5+ Ka7 Na6 Ra3 Qg5 Ra1 Qge5 Ra5
Bk3b2/q7/1Nb1Q2b/1p1B1RQ1/1Kb1Q1p1/1R1r1Nb1/b4nB1/1rQq4 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 h5 f5 d5 cxd5 e6 Kf2 exf5 Ke1 f4 d4 c5 a4 c4 g4 hxg4 Bb2 Nd7 Ba3 Nc5 dxc5 bxa3 Kd2 Kd7 Kc3 Kc7 e4 f5 h4 b5 c6 g5 h5 a2 d6+ Kb8 d7 g3 h6 g4 a5 f3 h7 f4 a6 f2 e5 f3 e6 g2 e7 Bb7 e8Q Nf6 Qc1 Bh6 Qg8 Ne4+ Kb4 c3 Qb3 c2 Nd2 Qc7 Nc4 Rd8 Rb1 a1B h8Q Bag7 Nb6 Ra7 Qd1 c1B Qe8 Bcf4 Rh5 Bg3 Qbe6 Ra8 Bc4 f1B Bd5 f2 Nf3 g1Q Qc1 Bc4 Rf5 f1B Rb3 Nf2 Q8e7 Bfe2 Qe4 Qd1 Q7e6 Rc8 d8Q Bf1 Qdd7 Rd8 Qde7 Bfd3 Qeg5 Bb1 Re5 Qf7 Rf5 Ba2 c7+ Ka7 c8B Kb8 Bc6 Rd3 Bd5 Bc6 Bb7 Ra7 Ba8 Re7 Qeg6 Re5 Qe6 Qc7 Qd4 Re2 Qde4 Rb2 Bb7 Qf7 Ba8 Rb1 a7+ Kc7 Bb7 Qd7 a8B Kb8 Bc8 Qa7 Bcb7 Be8 Bbc6 Bd7 Bcb7 Bc6 Qd4 Nh1 Nh4 Be8 Bg2 Bd7 Bbd5 Bc6 Qde4 Nf2 Nf3 Bf8+
nq1Q4/nkN2n1n/4Q1q1/1pQpn1q1/B5QR/8/N3BpB1/2R1bb1K w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 c5 f4 cxd4 a5 b5 f5 Ra6 f6 Rb6 Nh3 exf6 Ng1 f5 Ra2 f4 Ra4 Na6 Ra1 Nb8 axb6 g5 g4 f5 Qd2 f3 Ra7 f4 Ra1 h6 Qc3 Rh7 Be3 Rf7 Qd3 Rf5 gxf5 Bd6 Bf2 Bf8 Bh4 g4 Bg5 hxg5 Qd2 Ke7 Qd1 Ke8 Kf2 d5 c4 Kd7 h4 Kc6 e4 b3 e5 b2 e6 d3 b7 d2 f6 Nh6 h5 Nf7 h6 Bb4 Ne2 g3+ Kg1 g4 h7 g2 Nbc3 b1Q h8Q Qg6 c5 f2+ Kh2 g1N e7 f3 e8B+ Bd7 Bg2 f1Q Qg8 f2 Rc1 Nh3 Na2 Nhg5 Nf4 Nh7 Ne6 Qfd3 Qe2 d1N Nc7 Nc3 Qe4 Qg5 Qe6+ Nd6 f7 Qdg6 f8Q Na4 Qgg7 Nb6 Bf7 Na8 Bg8 Na6 b8Q Be1 Qfe7 Qde8 Qbd8 Kb7 Bf7 Nb4 c6+ Ka7 Bg8 Nf7 Q7d6 Bc8 Qc5+ Kb8 Bf3 Qf8 Be2 g3+ Kg2 Qd6 Rh4 Qf8 Kh1 g2+ Kh2 g1N Kh1 Nf3 Qgd4 N3e5 Qdg4 Nf6 Bh7 Qh8 Ne8 Qhg8 c7+ Kb7 Kh2 Qc2 Kh1 Nbc6 Be4 Nh7 Bg2 Qh8 Bd1 Qcg6 Ba4 Bd7 c8B+ Kb8 Qe2 Na7 Nc7 Qe8 Q6g4 Bf5 Qee3 Bd3 Bf5+ Kb7 Bfe4 Nd6 Bef3 Bf1 Be2 Ndf7 Qee4 Qf8 Qef5 Qh8 Qe6 Qe8 Qde7 Qc8 Qd8 Qb8
B3q3/p2QN1k1/pB1pQ2N/7n/1R3QNr/2p1n3/K1r3nr/r1R1nN2 w - - 0 1 illegal: No possible last move, all moves rejected
RKB2qqQ/4Q2N/qq1Rq2r/B1b4r/2N1r1bB/2Q2n2/4Q1n1/5rkn w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 f5 g4 d5+ Kd3 h5 c4 b3 g5 f3 g6 f4 g7 b2 c5 f2 b6 h3 c6 f3 c7 h2 b7 h4 Bd2 h3 Bg5 Ra4 Qe1 Nf6 g8Q Ng4 Na3 b1Q+ Nc2 Qb6 Rb1 Rh5 Bd2 Nc6 b8B Ne3 Na3 Kf4 e5 Bc5 e6 Qf8 e7 Bg4 e8Q Kg3 Qh7 Ng2 c8Q+ Ne5+ Kc2 d3+ Kc3 Qg8 Qee7 Re4 Nc4 Qf8 Bg5 d2 Qe2 d1Q Ra1 Qe1+ Bd2 Rh6 Qh8 Qg8 Ra8 d4+ Kc2 d3+ Kc3 Qf8 Bc7 Qg8 Bd8 Qa6 Kb3 Rh5 Bb4 d2 Bba5 d1R Ka4 Rd6 Qcc7 Rdh6 Qc6 Qb1 Qcc7 Qae6 Qc6 Qd3 Kb5 Qe3 Ka6 Qf4 Qe3 Qff8 Be2 f1Q Kb7 Qa1 Kb8 Qa4 Qd2 f2 Nf3 f1R Ng5 Kf2 Nh7 Nf3 Qce8 Qac6 Qdc3 Qa6 Rg1 h1Q Bd3 Rc1 Rd1 h2 Bf1 Qg1 Rd6 h1N Bd3 Re3 Bf5 Re4 Qb5 Rf1 Qbe8 Qd5 Bc8 Qde6 Qb5 Qh2 Qbb2+ Kg1 Qe2 Qh4 Qb7 Qe1 Bh4 Qf2 Qe7 Qd4 Rb6 Qdd8 Rd6 Qdb6+
4RbQK/nBBN1q2/rb4b1/1kq3B1/4R1Q1/3r1NnR/1r2n1Bn/2b3b1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 g4 h5 f4 hxg4 c3 dxc3 Qa4 exf4 Qb3 Bd6 Qd1 Bf8 Kf2 g5 b4 d5 e4 Kd7 h4 a5 h5 f5 e5 f3 Ke3 a4 Kd4 g3 b6 Kc6 h6 f4 b7 g2 h7 g4 e6 f2 Ke5 g3 e7 a3 Qd2 f3 Rh5 c2 Rh3 d4 Qe1 d3 Qe2 a2 Bf4 c1B Qe4+ Kb5 Bg5 Qc7+ Kd4 Nh6 Nd2 Ra6 Nc4 d2 Qg4 Bf5 e8B+ Nc6+ Kd5 d1N b8B Bg6 Ke6 Nf5 Kf6 Nc3 Ne5+ Ne2 Nd7 Rg8 Rb1 a1R h8R R1a2 Rb3 Rd2 Re3 Rb2 Re4 Rg7 Bf7 Na7+ Be6 Qc5 Bc7 Rh7 Rg8 Rh6 Rh8 Ra3 Bd5 Rd3 Bb7 Ned4 Ne2 g1B Bg2 f1Q Rg8 Bge3 Ng1 f2 Nf3 Ne2 Rh8 Qe1 Rg8 f1N Rh8 Nh2 Rg8 Ka4 b5+ Qeb4 b6 Kb5 Rh8 Qb3 Rg8 Bd6 Rge8 Bf8 Ba8 Bg1 b7 Qbd5 b8Q+ Qb7 Bf1 g2 Qd8 Qbd5 Bb7 Nfg3 Qb8 Bf2 Qa8 g1B Bg2 Be1 Qd8 Ba5 Qa8 Bb6 Qb8 Be7+ Kg7 Qf5 Kg8 Bf8 Qc8 Bh7+ Kh8 Qf7 Qd8 Rf6 Qe7 Bg6 Qee6 Ba5 Qa2 Ra6 Qd5 Bb6 Qa2 Qfe7 Qg8 Qf7
3nB3/1rrb1QN1/k1rb1n2/4qn1n/2NR1Qn1/3Q4/KN3Qq1/1B1nr1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 a5 Kc1 g5 c4 d5 h4 Kd7 e4 Kc7 b4 Kb6 Kb2 f5 e5 f4 e6 a4 h5 d3 h6 f3 h7 d2 e7 g2 e8B a3+ Ka2 f2 Rh6+ Nc6 Nh3 g1N Qc2 d1N Bd3 f1N Nf2 g3 Re6 g4 Nh3 g2 Re1 d4 Qd2 g3 Ng5 Bd6 Re4 Ra7 Qf2 Nh2 Nc3 Rb7 Ne6 Ng4 Bb1 Qe7 Ng7 Nde3 Nd1 d3 Rd4 d2 Nb2 d1N c5+ Ka7 b6+ Ka6 Qf7 Nd8 c6 Bd7 c7 Ne2 c8N g1R Qf2 Rc7 b7 g2 b8Q Nf5 Nb6 N8f6 N6c4 Qe5 Qc8+ Rb7 Qc7 Rf8 h8Q Nf4 Qh2 Rf7 Qh3 Re1 Qd3 g1Q b5+ Ka7 b6+ Ka6 Qc6 Qg2 Qcf3 N4h5 Qf4 Rc7 b7 Re7 b8Q Rf7 Kb3 a2 Qb4 Rc6 Qc5 Rc7 Qd5 Re7 Qf7 Rc6 Bc2 Rc7 Rb1 a1R Rc1 Ra5 Bb1 Rac5 Ka2 R5c6 Rc2 Re4 Re2 Rb7 Re1 Re2 Rg1 Re1 Qh4 Be6 Qhg3 Rec7 Qgf2 Bd7
Q1qRb1n1/2qB2rn/1r1q1rB1/2N1rNk1/RK1Q1rr1/3N2B1/3N4/3rn3 w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Ke7 e4 f5 c4 b5 a4 d5 g6 Kf6 e5+ Kg5 c5 h5 g7 d3 a5 f4 c6 g2 c7 h4 a6 b3 Kc3 b2 e6 d2 e7 f3 e8N g3 a7 h3 Nf6 b4+ Kb3 f2 Ra4 d4 Bc4 f1R Qe1 h2 Qe3+ Rf4 Qf3 d1R Bd2 d3 Qe3 Bd7 c8Q Rh4 Ng4 Qc7 Qb7 Be8 Ra3 Nd7 Nh6 Ndf6 Qb8 Rg4 Bf7 Nh7 Be1 d2 Ne2 g1R Ra4 g2 Bg3 Rgf1 Qf2 g1N Nf5 Nf3 Bg6 Ne1 Qd4 Qc8 Rg1 h1R Nc1 Rh5 Nd3 Qc7 Qb7 Rd8 a8N Rd7 Nb6 Qc8 Ka2 b3+ Ka3 Qc7 Qa8 Rf7 Nc3 b1Q Nd7 b2 N7c5 Qc1 Nb1 Rf6 Rg2 Rg1 Kb4 Qc8 Re2 Qc7 Re5 Qc2 Rd5 Qc8 Nb3 Q2c7 Rd8 Rg2 Na3 b1R Nc4 Nh6 g8B Rg1 Be6 Ng8 Kc3 Rb2 Nbc5 Rb6 Ra1 Rdb1 Ra4 d1Q Bd7 Ra1 Rb4 Qd2+ Kb3 Rd1 Ka4 Qh2 Ka5 Qd6 Ra4 Qc2 Nd2 Qc1 Na6 Q1c7 Nac5 Rgh4 Ne7 Kh6 Bgf5 Rg5 Bh2 Rg7 Bg6 Rg5 Bg3 Re5 Nf5+ Kg5 Nc1 Ra6+ Kb4 Rhg4 Nd3 Rb6+
3R1rN1/3B3r/1R2RrqB/1N1n2Q1/1Nk5/5nr1/K2Qqqpn/b3rb1R w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 Ke7 h4 Ke6 e4 d5 c4 g5 Kc2 f5 Kb2 g3 b6 g2 h5 d3 h6 d2 b7 d4 e5 b3 h7 g4 c5 Kd5 c6 g3 c7 f3 e6 f4 e7 d3 e8Q f2 Qe7 f3 Rh6 Bg7+ Qf6 Nc6 b8R Bh3 c8R Qb6 Rh5+ Ne5 Rc3 Ne7 Qe2 d1Q Ra2 d2 Rd3+ Kc4 Nc3 Nd5 Nb5 Qa7 Qe3 Qe2 Rb6 d1R+ Qd2 Re1 Raa6 Raf8 Qg5 Bf6 Kb1 b2 Ka2 b1R Re6 Rb3 Rh4+ Qd4 Rab6 Qde4 Rh5 Qg6 Rh4+ Ng4 Rh5 Ba1 Rh4 Ne3 Rd8 Nd5 Rh5 Nh2 Rh6 Rhg8 h8N Rg7 Nf7 Rh7 Rh4+ Bg4 Nh3 g1N Bg2 f1Q Nf4 f2 Bh3 g2 Nd3 Ngf3 Nb4 Qg1 Nh6 f1R Ng8 Qgf2 Rh5 Bf5 Rh6 Re3 Bg4 Bd3 Bf5 Nh4 Bg4 Rg3 Bh3 N4f3 Bf5 Ng4 Rh1 Ngh2 Re3 Nd4 Qg4 Qef3 Qb2 Qg1 Bd7 Rf2 Bd2 Bf1 Ree6 Qe2 Bh6 R2f6 Qg5 Ndf3 Qbd2 Qgf2
Kb1b2B1/nqb2QRb/5N2/BqkN3B/5rN1/2rp1q1n/bN1R4/3Q3r w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 Ke7 Kd3 Kd6 Ke4 g5 h4 f5+ Kd3 g3 Kc4 g4 e4 g2 b6 g3 Kb5 d3 c4 b3 h5 b2 h6 d2 b7 f3 h7 f4 Rh5 f2 Rf5 f3 Nc3 b1B Nd5 Qc7 Ra7 Nh6 Bb2 Nc6 Ka6 Be7 e5+ Kc5 e6 Bd8 e7 Ba2 e8B Nf7 Bc3 Ng5 Nh3 g1B Ba5 g2 Bh5 Bh2 Rf7 g1B Rg7 Rf8 h8Q Rf4 Qf8+ d6 Qe8 Bf5 b8N Bh7 Qf7 Qe7 Bg2 f1R Nf2 Nh3 Ng4 f2 Bf3 Bc7 Kb7 Re1 Be4 f1Q Bc2 Bd4 Bb3 Bf6 Ra6 Na7 Nd7+ Kd4 c5 Qb5+ Rb6 Rc8 c6 Rh1 Bc4 Bh4 N7f6 Kc5 Bb3 Bb8+ c7 Qed7 Ka8 B2g3 Nb4 d5 Rd6 d4 Nbd5 Bg5 Nb6 B5h4 Nc4 Bg5 Nb2 d3 Re6 Qe7 Re2 B5h4 Qe1 d1Q Rd2 Qde2 Qd1 Qf3+ Bd5 Rd8 c8N Rd6 Ne3 Rc6 Nb6 Qee4 Neg4 Rc8 Ne8 Bd8 Nef6 Rf5 Bc6 Kd4 Bd5 Rc3 Qb7 Kc5 Bg8 Qec6 Nbd5 Bge5 Rh2 Rf4 Rd2 Qca6 Qd7 Bec7 Qf7 Qab7#
1Qb2B2/6n1/R1qn3Q/Nb1k1B1r/1n2pr2/2RBr1n1/Nq1RqB2/nK6 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 e5 axb4 e6 fxe6 Bb2 e5 Bc1 e4 a3 gxh4 Bf4 b5 Bg5 b3 Bc1 b2 Be2 b4 Qd3 b3 Qd1 Bh6 Bf1 Bf4 Rh3 Bd6 Rh1 Bb4+ axb4 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 Kf7 f4 Ke6 c4 d5 g4 h5 c5 d3 c6 d4 g5 h3 f5+ Kd5 b5 e5 b6 h4 g6 h2 g7 h3 c7 e3+ Ke1 e2 Kd2 e1R f6 Nc6 f7 Rh5 f8R Ra4 b7 Re3 b8B Qd6 Rf3 Nf6 Rf2 Qa3 Rg2 Nb4 Ba7 Ne8 Qe2 Nd6 Ke1 d2+ Kf2 d1N+ Ke1 d3 Nd2 b1Q Nc4 b2 Kd2 Qba2 Na5 b1B+ Bb2 Bc2 Kc1 Bb3 Rf2 Bc4 Qd2 Bb5 Ne2 Qc4+ Kb1 Qc6 Rg1 h1N Nc1 h2 Na2 Ng3 Bb6 Ngf5 Rg3 h1N g8Q+ Nf7 Qc1 d2 Bd3 Ng7 Rh3 Ng3 Re2 Bg4 Qb8 Nd6 Bc5 Bc8 Bbd4 Nf2 Qh1+ Nfe4 Qc1 d1Q Rd2 Qe2 Qh1 Nc4 Bf8 Nd6 Qh2 Nc5 Qh1+ Re4 Bf2 Nb3 Qh2 Rf4 Qh1+ e4 Qc1 Bb7 c8B B7a6 Bf5 Bc8 Nc4 Ra6 Na5 Ra7 Qb2 Rf7 Qf6 Rf3 Qh6 Re3 Bg4 Rff3 Bf5 Rf4 Nc1 Qa4 Ra3 Na1 Na2 Qe8 Rc3 Qa3 Rh1 Qe6 Rhc1 Qf6 Rc6 Qfc3 Ra6 Qc6 Rc3 Qb2+
2Rqr3/K1NBn1n1/2Q1bk1b/pq1QR1N1/Qr5Q/7q/2r2BR1/1r2b1r1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 Ke7 e4 f5 b4 d5 g4 a5 g5 h5 e5 d4 g6 c2 e6 f3 b6 d3 Ke3 f4+ Ke4 h3 b5 h4 g7 h2 b7 h3 b6 d2 Nc3 f2 Bb5 f1R Ra2 f3 Bd7 f2 Kd4 Na6 b8R Nc5 b7 Kf6 Nf3 Rg1 e7 f1Q e8Q Qb5 Ng5 Ne7 g8Q Bh6 Qd5 Rg8 Qeh5 Re8 Qh4 Ra6 Ba3 c1B Qa4 d1R+ Rd2 Rg2 Re1 h1R Re5 h2 Ra8 Rd6 b8Q Rhg1 Qb6 h1Q Qc6 Qh3 Bb4 Rdf1 Ra2 Rh2 Rg2 Bd2 Ba3 Rb1 Rb8 Na6 Bc5 Be1 Bb6 Nc5 Ra8 Qa6 Nb5 Ne6+ Kc4 Qb7 Nc7 Ng7 Bf2 Qa6+ Kc5 Re6 Qb7 Reb6 Rb8 R6b4 Qbb5 Qa8 Kb6 Qc6+ Ka7 Qc4 Qbc5 Qb5 Ra8 Bb7 Rc8 Ba8 Qd2 Bd5 Qc6+ Be6 Qdd5 Ra1 Bd4 Ng6 Rg3 Rc2 Bf2 Rab1 Rg2 Ne7
n7/r1Q5/QrBNQ3/q1kb1b2/R2Nb3/N1b2R1r/1pN1b1b1/nbK4B w - - 0 1 legal: proof: f4 d5 h4 c5 c4 g5 cxd5 gxh4 b4 cxb4 f5 a5 f6 b3 Ba3 b2 Bb4 axb4 Qb3 exf6 Qc2 f5 Qd1 f4 d4 Ke7 Kd2 Kd6 g4 h5 e4 b5 a4 f5 g5 b3 a5 b4 g6 f3 a6 f4 a7 f2 g7 h3 Ra6+ Nc6 Nf3 h2 Ra5 h4 Rc5 h3 Na3 b1R Rc4 b2 Qe2 Nge7 g8Q Qa5 Ne1 f3 Bg2 f1B Nec2 f2 Rc3 Bg4 Qa6 Bf5 Rf3 Bg7 Qe8 Be2 e5+ Kc7 e6 Kd6 Rd1 f1B Bh1 Nc8 e7 Bg2 Qg8 Nb6 e8N+ Kd7 d6 Rh4 d5 Nd4 Ke3 Nb3 Rd4 Na1 Kd2 Rh6 Rc4 b3+ Rb4 Rb8 a8B Bc3+ Ke3 Rd1 Ra4 b1B Bb7 Na8 Bc6+ Kd8 d7 Ke7 d8N Rb6 Nd6 Rd2 Nb4 Ra2 Ne6 Rh8 Nd4 Rh7 Rf4 Bge4 Rf3 Rh4 Bg2 h1B Nbc2 h2 Qgc8 Rh3 Qe6+ Kd8 Nb7+ Kc7 d6+ Kb8 d7 Kc7 Nd6 Bd5 Rg3 Bde4 Bf3 Bd5 Be4 Bg2 Rf3 h1B Nb4 Bb2 Kd2 Bc3+ Kc1 Rb7 Qc4 Kb6 Qa6+ Kc5 d8Q Rb6 Nbc2 Qb5 Bd3 Qa5 Bdb5 Bde4 Bb7 Bd5 B5c6 Bde4 Qc7 Bd5 Rg3 Bge4 Re3 Bhg2 Rf3 Rg3 Rb4 Bh1 Nac4 Rh3 Re3 Qa4 Qa7 B4d3 Bd7+ Bc6 Be8 Qa6 Rg3 Ra5 Ra4 Qb5 Bd7 Ra6 N4a3 Qa5 Qd8 Bcf3 Be4 Bc4 Bdc6 Bd5 Qb7 Ra7 Qdc7 B3g4 Bf3 Bfe4 Qa6 Bgf5 Bg2 Qb4 Rd3 Qa5 Bf3 Bg2 Re3 Bgf1 Bh1 Bfg2 Rf3 b2+
r1B3Q1/2QQ1N1B/N5p1/1RrnqB2/2Qr2n1/2n3kr/rb5r/2Rr2bK w - - 0 1 illegal: No possible last move, all moves rejected
1n2r1B1/6nq/2NqQ1NB/2Q1b3/1B5n/pKb3qQ/2B1bR1r/1r1Rn1k1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 e4 Ke7 g4 Ke6 b4 Ke5 g5 h5 g6 f5 g7 a5 b6 d5 b5 f3 b7 c2 Kd2 Kd4 e5 f2 e6 h3 e7 a4 e8Q h2 b6 h4 Qf3 a3 Qe1 f4 Qfe2 f3 Q2d1 h3 Bg2 f1Q Qe6 f2 Qf3 Bd6 Qef5 Be5 Qf8 Bg4 Q8f7 Nf6 g8B Ne8 Qf8 Qd6 Q8f6 Ng7 Qb3 Be2 Bf3 Qg2 Qe7 f1R Ra2 Qg3 Qe6 Rh4 Bh5 Ke4 Qc4+ d4 Qc5 d3 Nf3 Re1 Rg1 h1Q Nd4 h2 Kc3 d2+ Bf3+ Ke3 Be4 Rh6 Kb3 Kf2+ Nc3 d1N Nc6+ Ne3 Nd5 Rh4 Bd2 c1B Nde7 Bcb2 Ng6 Rb1 Rd1 Bbc3+ Rb2 Rh8 Bc2 Qe4 Qh3 h1N Be1+ Kg1 Qe6 Nd7 b8B Nf2 b7 Rh2 Ba7 Qf5 b8Q Nd3 Qc8 Nb8 Bb6 Qh5 Bd8 Qh8 Bg5 Qh7 Bd2+ Ne1 Bh6 Kh1 Qh3 Ng2 Qce6 Nh4 Ka2 Bcd4 Bb4 Bc3 Kb3 Ra4 Ba5 Re4 Bb4 Re3 Rd4 Kg1 Rd1 Rc1 Ra2 Rb1+ Ka4 Nd7 Qf6 Bh5 Bcb3 Bf4 Rf2 Nb8 Bc2 Re8 Qff5 Be2 Qe6 Ra1 Kb3 Bfe5 Qef5 Rc1 Qe6 Rb1+
3R1Nr1/r1B1BQ2/1Q1R3p/1q3nB1/3r2KQ/2Bq1b2/1qn2q1b/bk3Nn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 h4 Ba3 g5 Qe7 Bh3 Na6 Bg4 hxg4 h5 Qf6 h6 Qd8 h7 Nb8 Qd3 Bc5 Qh3 Bf8 Qh6 gxh6 Kf2 Ke7 e4 Ke6 c4 Ke5 b4 f5 c5 d5 c6 a5 g6 f3 Kg3 a4 c7 d3 b6 Kd4 e5 f2 g7 f1Q e6 d2 e7 Kd3 e8Q Kc2 b7 d1Q b5 f4+ Kh2 d4 b6 d3 Qg6 a3 Nc3 a2 Nh3 f3 Kg3 f2 Ne2 Qd4 Nhf4 Nc6 b8B Bf5 c8Q d2 b7 Qb2 Bc7 Nd4 Ne6 Ne7 g8Q Be4 Qd8 Ra7 Q8f7 Rg8 h8B Nef5+ Kf4 g3 Qh4 g2 Ng3 Be7 Nf8 Qfb5 Qb6 Bd6+ Be5 Qde2 Rd1 g1N Bd8 Qe1 b8B Bc7 Rb1 a1B Be7 Bd6 Bc7 Qee2 Qh2 f1Q+ Qf2 Qh3 Nf1 Qg2 Qg3 Qec4 Qg5 Qf2+ Kg4 Qcb3 Bg7 Bh2 Qh4 Q3c3 Re1 d1R Bcg5 Rd2 Rbd1 Rd3 Re3 Qca3 Rd2+ Kb1 Rg3 Nc2 Bd4 Rb3 Rgd3 Rb4 Bg7 Qac3 Rd8 Qcc4 R2d5 Qd3 Bc3 Rd4 R5d6 Bf3#
R5qB/q1rRbp2/2q2B1k/1N3n2/BQ3qqB/5bn1/1Kq1N3/rQ1q3R w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 g5 c4 d5 Kc2 f3 e4 b3+ Kb2 d3 h4 d2 b6 g3 e5 g4 e6 d4 b7 f2 e7 d3 c5 g2 h5 g3 h6 Qb6 c6 Bg4 h7 Nd7 b8B Bf3 c7 Qc6 Be2 f1Q Nh3 g1Q Nc3 g2 Ng5 Ndf6 Rh5 Ne4 Rh6 Ng3 Rh1 Nh6 Nh3 Qa7 Nb5 g1Q Nf4 Nhf5 Ra6 Rg8 h8B Rg6 Qe1 d1Q Qb4 d2 Ra5 Rd6 c8Q+ Rd8 Qc7 Rd7 Qb6 Rc7 Bd3 Qde2 Bc2 d1Q Ra4 Qec4 Ne2 Qg4 Bg5 Qff2 Ra6 Qe3 Bh4 Qef4 Ka3 b2 Ba4 b1Q B4f6 Qbd3+ Kb2 Qg2 Qg1 Qg8 Rb6 Qh3 Rb7 Qhg4 Qf1 Rc8 Bbe5 Rc7 Bh4 Qdc4 Bef6 Qcc2+ Ka3 Kd7 e8R Be7 Qg1 Ke6 Reb8 Ng7 Rd8 Kf5 Rd7 Kg6 Rb8 N7f5 Qf1 Qdd2 Qb1 Kh6 Re8 Qdd1 Rc8 Qab7 Rb8 Ra5 Rbd8 Qa7 Ra8 Qcd3+ Kb2 Qde4 Bb3 Ra1 Ba4 Qec2+
rNbb1n2/2R1R2r/3Bb3/2BQrr1Q/k1pRq1bn/2K3bB/3Nr3/1B6 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 g4 Kd7 e4 f5 d4 c5 Kd2 h5 d5 c3+ Kc2 b3+ Kd3 c4+ Kd4 b2 d6 c2 b6 Kc6 e5 Kb5 g5 h3 b7 f3 d7 h2 e6 h4 g6 h3 e7 f2 e8B f4 g7 f3 Bg6 Qe8 d8Q Nd7 b8B Bd6 Qc7 Rh7 Bfd3 f1B Bh5 f2 Ra4 Ne7 g8R Be2 Be3 f1R Ra1 c1B Bg4 Bg3 Rg7 Nf8 Ra7 Rf5 Nf3 Neg6 Kc3 Qe4 Bc5 Nh4 Ne5 Bg5 Qf7 Bd8 Nd2 b1R Qd5 Rb2 Bbd6 Ra2 Re1 h1R Bb1 h2 Bh3 Bg4 Rae7 Rg1 Rf1 h1B Rf4 Re1 Nc6 Bhf3 Qe2 Ka4 Nb8 Rb2 Qh2 Rb5 Rc7 Re2 Rge7 Re5 Qh1 Bge6 Qh2 Bfg4 Qh1 Qg6 Rd4 Qe4 Qf3 Rb2 Qf5 Rf2 Qh5 Rff5 Nb3 Rbf2 Nd2 Re2
q1BB2K1/6b1/1R2Bn2/3b1Rn1/N1Nr2b1/Rq3r2/1b1Qp2r/bkbQ3B w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Qf3 g5 Qg3 gxf4 g5 Nc6 Qf3 Nb8 Qg4 hxg4 Ke2 Kf7 h4 Ke6 b4 Kd5 h5 Kc4 b6 e5 b7 d5 g6 a5 h6 d3+ Kd2 f3 Ke3 a4 g7 f2 c3 Kb3 h7 Kc2 b5 g3 b6 g2 c4 a3 c5 d2 c6 d1Q c7 a2 Bb2 Nh6 g8B Ra4 Rh3 Bg7 Rh4 Nf7 Bb5 f1R Nc3 Ng5 Be6 Nd7 b8R Nf6 b7 Rd4 Nf3 Qb1 Bc1 Qb3 Nd2 Rf4 Rh2 g1B+ Rf2 Qg8 Bc6 Rf3+ Ke2 e3 Na4 e4 Nc4 Bd7 c8B Bh2 Bd2 Bf4 Ba5 Be8 Bd8 Bf7 Rh1 a1B Rh3 Kb1 Rg3 Qe8 Rh3 Rf8 h8Q Be5 Qh7 Rh8 Qh5 Bb2 Rg3 Bc1 Qh1 Rh2 Qd1 Qg8 Ra8 Qh8 b8Q Qe8 Qb4 Qf8 Ke1 e2 Rb8 Qe8 Rb6 Bg8 Bb5 Qc6 Qd6 Qa8 Qd2 Bb2 Bc6 Bf4 Qd1+ Bfc1 Rf1 Rdd3 Qf4 d4 Qfd2 Bf7 Bf5 Bd5 Bfe6 Rfe3 Rf5 Rf3 Qe3 Rd2 Qf2 d3 Qg2 Re3 Kf2 Ba1 Rgf3 Bb2 Kg3 e1B+ Kf4 Bh4 Rf2 Rg3 Rf3 e3 Re5 Rgh3 Kf5 Bg3 Kg6 Ba1 Ref5 Bge5 R3f4 Beb2 Rh4 Rf3 Rh3 Rc2 Rg3 d2 B6b7 Rc3 Qge2 Rd3 Rh3 Ngh7 Kf7 Rd4 Rg3 Ng4 Kg8 Ng5 Qh1 d1B Qd2 Bc2 Qhd1 e2 Rf8 Bg6 Rf5 Bh5 Rh3 Ne5 Bc6 Nd7 Rg3 Bg4 Rh3 Rff2 Rc3 Rf3 Rd3 Qc2 Ra3 Qb3 Bf7 Rff4 Qg1 Be6 Bh1 Bd5 Be6 Rf3 Qgd1 Nf6+
R1rBQ3/1R1N1K2/1r1Rn1Q1/qb2bq1b/2p5/4b1QQ/1k2Nq1b/n1b3B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 Kd7 Ke2 Ke6 Kf3 Ke5 b4 Kd4 Kf4 g5+ Kf3 a5 h4 f5 d3 c5 b6 f4 b5 a4 e5 g4+ Ke2 f3+ Kd2 a3 b7 c3+ Kc2 a2 Kb3 f2 h5 f1B e6 c2 e7 Ra6 e8Q Qa5 b6 Ne7 h6 Nd7 b8Q Nd5 b7 Nf4 h7 Bh6 Rh5 Ne6 Na3 Be3 Nc4 Rg8 Bd2 c1B Rh6 Rb6+ Bb4 Be2 Ne5 Rf8 Rb1 a1B h8Q Bf1 Qc2 Bc3 Nh3 g1Q Nf4 g2 Rg6 g3 Qh3 Qf2 Ne2+ Kd5 d4 g1Q Rf6 g2 Qcg6 Qf5 Rb2 Ke4 Kc4 Qf2 d5 g1B d6 Bh2 Qc7 Rh8 b8R Bb7 Ra2 Bc6 Rb7 Bb5+ Kb3 B3b2 Bc3 Bg2 Bd4 Bf3 Ra3 Bh5 Qcb8 Ndf8 d7 Ba1 d8B Nd7 Nd3 Rg8 Qbg3 Bc3 Ne5 c4+ Kc2 Ndc5 Nd7 Nb3 Bc5 Qb4 Ra8 Be5 Bd4 Qa4 Kc3 Na1 Q6g4+ Kd5 Qgg6 Qa7 Kb4 Ke4 Bc5 Kd3 Bd4 Kc2 Bc5 Nf4 Rd6 Rf8 Bd4 Qa5+ Kc5 Ne6+ Kd5 Rh8 Rc6 Bg7+ Kd6 Kb1 Ke7 Bf6+ Kf7 Ka2 Bc5 Kb2 Rd6 Bed2 Qg8 Qf1 Bg1 Q1f2 Bc7 Be3 Qf8 Rg8 Qe7 Rd8 Qe8 Rc8 Bd8 Be5+
4r2Q/2QNN1b1/n1Q1pNRn/6K1/B2kb2r/1bbr1q2/BR1b2r1/6nQ w - - 0 1 illegal: No possible last move
Nr1B1r1b/1q2p1rr/B1n2q1N/4Nr1q/Q2b4/K3k3/r2RN2Q/1B2n1R1 w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 d4 fxe4 f4 c5 Na3 cxd4 Nb1 b6 f5 Ba6 f6 gxf6 h3 Be2 g5 Bg4 hxg4 f5 Rh4 f4 Rh5 Ra7 Rh1 Ra8 Kd2 Kf7 a4 Ke6 c4 Ke5 Kc2 d5 Kb2 h5 g6 f3 g7 f2 g5 b3 a5 e3 a6 Ke4 c5 h4 c6 d3 g6 d4 c7 e2 c8Q e1B a7 d2 Ra5 h3 Nf3 d3 Qc3 h2 Bg2 f1R Na3 b5 Ng5+ Ke3 Qc5+ Qd4+ Qc3 b4 Rf5 Qf6 Rf4 Bf2 Rc4 Nh6 g8N Nf7 g7 Nc6 Rc5 Nfe5 Nb5 Nf3 Rd5 Ne1 Rg1 h1R Nd4 R1h7 Nh6 Rg8 Ka1 b2+ Ka2 b1R Ngf7 b3+ Ka3 b2 Ne2 Rb8 Qcb3 Ra1+ Qa2 b1Q a8N Qb7 Be4 Rgh8 g8B Bg7 Qa4 Rf8 Bb2 d1Q Ne5 d2 Be6 Rhg8 B6f5 Bh8 Bd3 Rgg7 Bc3 Rb1 Ba6 Ra1 Nf4 Qh5 Ne2 d1R Rd2 Rdb1 Ba5 Rb5 Bb1 Rb8 Ng6 Rf5 Bc7 Kf3 Bd8 Bd4 Ne5+ Ke3 Bc2 Rc1 Bb1 Rc2 Qd5 Rb2 Qg2 R1f2 Qh2 R2f4 Bb6 Ra2+ Kb3 Qd6 Qa3 Rff8 Qa4 Nb4 Bd8 Qf6 Rg4 Rf5 Rg1 Rc2 Ka3 Nc6 Qc4 Rb2 Qa4 Ra2+
1q1k4/1Q4q1/Qr3r2/r1rB4/nQn1R3/1b1RN1B1/1pnK1nr1/QN3Bb1 w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 e4 b5 d4 f5 g4 h5 e5 c5 d6 a2 e6 f3 e7 f2+ Ke2 f4 d5 h3 g5 h4 g6 b4 g7 h2 Qd2 b3 Bg2 f1R Na3 c4 Bh3 b2 Qe1 c3 Bf5 f3+ Ke3 f2 Bd2 h3 Rc1 a1N Rc2 Na6 Nf3 Rh6 Nd4 Nc5 Bd3 Nf6 g8B Na4 Nb1 Rg1 Nf5 Be6 Bf1 Rg2 Qc1 Qb8 Be1 Bg7 Rd2 c2 Rd3 Ng4+ Kd2 Ra5 Ne3 Ne5 Qd1 c1R Qg4 Rh4 Qb4 Rh6 Rg1 h1Q Qb7 Rg5 Rg4 h2 Re4 Rg2 Qb4 Kd7 Bf7 Kc8 d7+ Kc7 e8Q Rcc5 Qg8 Qg1 Qh7 h1N Bg8 Nc2 d6+ Kc6 d8Q Bb3 Qh4 Kd7 Bd5 Ke8 Qh3 Kd8 d7 Rb6 Qe6 Bf6 Qc6 Bh4 Qb7 Bg3 Qa6 Bh2 Be2 f1R Bg3 Rff6 Qg7 Nf2 Bf1 Rab5 Qf7 Nc3 Qa1 Ra5 Qe6 Na4 Qc6 Qh1 Qb7 Bg1 Qa6 Qh8 Qb7 Ke7 Qa6 Qg7 Qb7 Qe8 d8Q+ Kf8 Qda8 Qb8 Be2 Ke8 Qaa6 Kd8 Bf1 Nc4+
8/1QNq3B/3Q1rR1/2QK1bB1/NpRrQ1q1/b7/q2nb1n1/1qq1b1Nk w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 a4 b5 d4 f5+ Kd3 c5 e4 c4+ Kc2 f3 g4 h3 a5 f2 a6 c3 Kd3 f4 a7 f3 g5 h4 g6 h2 g7 b3 Ra2 c2 Ra6+ Nc6 Ke3 h3 Qe1 b2 Ra1 Nge7 g8N Na5 Bd2 c1B Bc4 f1B Kf4 f2 Ra4 Bf5 Qe3 Nb3 Bd3 Rh6 Nf6 Qd7 Rc4 Rd8 a8Q Be2 Nc3 b1Q Na4 Qa2 Qb7 f1Q+ Qf2 b4 Ke3 Ng6 e5+ Ke7 d6+ Ke6 Bb1 Ba3 Nd5 Qd1 Bc2 Be7 Nc7+ Kf7 d5 Bh4 e6+ Kf6 e7 Ke5 Bb1 Nf4 e8Q+ Re6 Qg6 Rf6 Bc1 Nd2 Qgg2 Qg7 d7 Qg4 d6 Bg3 Qgc6 Bh4 Qfg2 Be1 Be4 Bf1 Qe2 Ng2+ Kd3 Kf4 Kd4 Kg3 Qc5 Ra8 Kd5 Rd8 Nb6 Qa4 Bd3 Qb5 Qe4 Be2 Na4 Bh7 Nf3 Bf5 Rg1 h1Q Bc2 h2 Bd3 Rh8 d8Q Rh3 Qf8 Qe8 d7 Qe7 d8Q Qh7 Nd4 Qd7+ Qfd6+ Kf2 Bb1 Rd3 Qh8 Nh4 Rg3 Ng2 Bc2 Kg1 Qh4 Nb1 Bg5 Nd2 Qh8 Kf2 Qg7 Qf1 Bb1 Kg1 Qh8 Kh1 Qh4 Rc3 Nf3 Rd3+ Qed4 Bf2 Qh7 Qc1 Ng1 Be1 Bc2 Qcb1 Qe7 Qc1 Qe4 Qh4 Nh3 Qcb1 Qe7 Be6+ Ke5 Rb3 Qe3 Bf2 Be4 Rd3 Bh7 Bf5 Bf4 Qh5 Rg8 Qg4 Bg5 Bh4 Qed4 Bf2 Nf4 Kg1 Kd5 h1Q Qe4 Kh2 Rg7 Qhc1 Rg6 Be1 Nh3+ Kh1 Ng1 Rxd4+
3QRr1R/r3bR1r/1Nb1k3/2bpq3/N2b2Kq/2BB2N1/n5n1/r3rQ1N w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 Ke7 e4 g5 c4 d5 h4 f5 h5 b3 h6 f3 Kg3 f2 c5 b2 h7 f4+ Kg2 d3 c6 f3+ Kg3 d2 e5 Ke6 b6 Bb7 c7 Na6 c8R Nf6 Ra3 Be7 Rc5 Ra7 Rc7 Bc6 b7 Nb4 b8N Na2 Nc3 b1R Nh3 Ra1 Bd3 f1Q Bb2 f2 Na4 Qe2 Qf1 d1R Nd7 Re1 Ndb6 Rf8 h8Q Nh5+ Kg2 g3 Bc3 g4 Rd7 Bc5 Rf7 Qh4 Rb3 Qb2 Rb4 Be7 Re4 Rb8 Qd8 Rbb7 Qg1 f1R+ Nf2 Qe2 Rh3 Qe3 Nh1 Qeg5 Re2 Rf6 Qf1 Nf4+ Kg1 g2 Kh2 Qhh5 Kg3 g1B Re4 Bd4 Re3 Qh7 Rh2 Qe4 Rh8 Qgf5 Kh4 g3 Re2 Qh7+ Kg4 g2 Nc4 Ba3 Rd7 Rf8 Kg3 Kf5 e6 g1B e7 Bf6 e8N Bgd4 Ncb6 Bac5 Nd6+ Ke5 Re3 Ng2 Nf5 Bg5 Re7+ Kf6 Rf3 Qe5+ Kg4 Qhh2 Re8+ Re7 Qb8 Rh7 Qd8+ Kf7 Rf2 Bge7 Nfg3+ Ke6 Rf7 Qh4+
5R2/1Qb4q/4B1k1/3nRRqb/2r1b1r1/1K1Qn1Q1/nBR1bqNp/N2n4 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 h5 e4 d5 c4 f5 Kc2 Kf7 g4 b3+ Kb2 h3 g5 d3 e5 h2 c5 h4 b6 d2 b7 f3 c6 h3 c7 d4 e6+ Kg6 e7 d3 e8R f4 Be2 f2 Kc3 f1N Ra2 f3 Ra1 b2 Re4 f2 Rea4 Bg4 c8R Na6 b8Q Nf6 Kb3 Nd5 R4a2 Bd6 Nf3 Rh4 Na3 b1B Ne1 Nab4 Rac2 Ra4 Qb7 Na2 Bb2 Bh5 Ng2 Nfe3 Re1 f1Q Bg4 h1Q Be6 Rhc4 Rb8 Qe7 Rf8 Qf2 Qf3 d1N Qg3 Nf5 Re5 d2 Qe3 Bc7 Qd3 Kg7 g6 Nfe3 Rff5 Qg5 Rf8 Kh6 g7 Rg4 g8Q Rac4 Nh4 Qe4 Ng2 Qh7 Rff5 h2 Qgb8 N1c3 Rf8 d1B Ref5 Bb6 Qg3 Bc7 Re5 Nab4 Ref5 Kg6 Ra2 Bf3 Re2 Ncd1 Nc2 Be4 Na1 Bf3 Rc2 Be2 Ra5 Na2 Rc5 Nf4 Rce5 Nfd5 Qe4 Rh4 Qd4 Rg4 Qd3 Qd8 Rc1 Ba5 Qd2 Be4 Rc2 Bc7 Qd3 Qg5
8/bQ6/QN2rk1n/1r2rnqR/nB3BBB/r3p2R/2b1q1K1/1bbN1Q2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 f4 Kf7 Kf2 h5 c4 d5 g4 e5 c5 d3 f5 e3+ Kg2 d2 f6 h3+ Kh2 h4 g5 e4 c6 e2 b6 e1B c7 e3 b7 d4 Ra3 d3 Be2 b3 Ra6 b2 Bf1 Bc5 Ra1 Ra3 Be2 Na6 b8B Rh5 Bg4 Bf5 c8Q Nh6 Qa4 d1B Nd2 b1R Bb2 Bc2 Bf4 Ba7 Ne2 Nc5 Nc4 d2 Qaa6 d1Q Nc3 Bd2 Nb6 Na4 Qcb7+ Ke6 f7 Bc1 f8B Qe2+ Kg1 Qe7 g6 Qg5 g7 Kf6 Ra2 Bh7 Ba1 Rb5 g8Q Bb1 Qb3 Bhc2 Bb4 Re5 Qf3 Rb5 Qf2 h2+ Kg2 Re5 Rb2 Rb5 Nd1 h3+ Kg3 Re5 Qf1 Re6 Qd5 Re5 Qdb7 Rb5 Rg1 h1R Rg2 h2 Rf2 Qd5 Rf3 Re5 Ra2 Qg8 Bac3 Qg5 Be1 Rg1+ Kh3 h1N Bh4 Ng3 Rb2 Qc4 Rb3 Rh1+ Kg2 Ngf5 Rc3 Qa2 Rc5 Qc4 Rh3 Rh2+ Kg1 Rd2 Kh1 Rd6 Kg2 Qd3 Rc8 Rde6 Rh8 Nf7 Rh5 N7h6 Nb2 Qc4 Nd1 Qe2+
2K2N2/1b3kbQ/qR1R1Np1/r1nr4/q1R2Nn1/R7/B2nn1rr/3B1bQ1 w - - 0 1 illegal: No possible last move, all moves rejected
2QB1b2/n1b2k1B/qb1r1nnK/1RNq1b2/3Rq1R1/2R1N3/4pQ1b/q5N1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Ra7 Bc1 Rb7 Nd2 axb4 Nb1 b3 Ke2 b4 Ke1 Rb5 axb5 Rh5 Bd2 Rh7 Bc1 Rh8 Kd2 d5 h4 g5 c4 e5 f4 e3+ Kd3 e4+ Ke2 b2 h5 g3 h6 g2 f5 d3+ Ke1 d2+ Ke2 d4 c5 b3 f6 g4 c6 g3 h7 Kf7 c7 Ne7 b6 Ng6 b7 Qd6 Ra3 Bf5 c8Q Nd7 b8N Be7 Qdc2 d1N Q8c6 d3+ Ke1 d2+ Ke2 Rd8 Nc3 b1Q h8R b2 R8h4 Qa1 Nd5 b1Q Qc8 Qa6+ Rd3 Qb4 Rg4 Qbd4 Rhh4 Qe5 Nf3 g1B Bg2 Bh2 Ng1 Qf4 Bf3 g2 Ba3 Kf8 f7 Nf6 Nd7+ Kg7 Nc5 Rd6 f8R Qfe5 Rg8+ Kf7 Rd8 Qed4 Rh5 Qdc4 Nh3 g1B Bb4 Bf2 Ng1 Bfg3 Ba5 Be5 Kf1 e2+ Kg2 e1B Kh3 e3 Rc3 Bf2 Be4 e2 Ne3 Qd4 Qa4 Qd5 Qd4 Bef4 Bd3 Qe4 Rd7 B4g3 Bd8 Be5 Rb7 Bef4 Rh4 B4g3 Rb5 Be5 Rc1 Nc3 Bb1 d1Q Bd3 Ncd5 Rc3 Nb4 Bb1 Nc6 Bc2 Qh1 Qf4 Na7 Qg3 Be1 Qf2 Qdd5 Bb1 Bd3 Rd4 Bf5+ Rhg4 Qhe4 Bc2 Rc6 Bb1 Bc7 Bd3 Rd6 Bc2 Ne5 Kh4 Ng6+ Kg5 Bb6 Kh6 Bc7 Rcb3 Bea5 Rc3 Bab6 Bd3 Nh4 Rc2 Qg2 Ra5 Be6 Bf5 Qge4 Bh7 Bf5 Rc3 Ng6 Rb5 Bf8+
2R1N3/2R1q3/1nB3nk/QQ1B1r1q/2R2RB1/p3nKnr/2bqN3/q2n1r2 w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 f5 cxd4 f6 exf6 g3 f5 Ra2 f4 Kd2 f3 Ra1 f2 Ra3 f5 Kd3 h6 Be3 f4 Kd2 f3 Bg5 Bd6 Ra1 Bf4+ gxf4 hxg5 b4 Kf7 c4 Kg6 h4 d5 e4 a5 e5 d3 Ke3 d4+ Ke4 d2 b5 a3 b6 a4 c5 a2 b7 d3 h5+ Kh6 e6 a3 f5 g4 c6 g5 e7 g3 e8B g4 f6 g2 c7 g3 f7 Ne7 f8R Nd7 b8Q Ra5 Nc3 Ng6 Rh4 Nb6 Nge2 g1N Nb5 g2 Nd6 Rf5 Qe1 d1N Bc6 d2 Rc1 a1Q Ne8 Ne3 Rc4 d1N Rf4 Qd2 Rf7 Bd7 Bd5 Ba4 c8B Qg7 Rd7 Qe7+ Qe5 Rh7 Rdc7 Bb3 Bd7 Ba4 B7c6 Rh8 Nc3 Bc2+ Bd3 f1Q Ne2 Qf2 Qf1 Qfh4 Qe1 Qc1 Qa5 f2 Qb5 f1R Qa5 Kg5 h6 Qd2 h7 Kh6 Qb5 Nh3 Qa5 Nhf2+ Kf3 g1Q Qb2 Rf6 Bf5 Qh5+ Bg4 Rf5 Qa1 Nc3 Qb5 Nce4 Qc3 Ng3 Qca5 Qgh2 Qc3 Q2h4 Qcb4 Qhf6 Q4a5 Qa1 Nd4 Rhf8 Ne2 R8f7 h8R+ Rh7 Rg8 Qh3 Nd6 Kg5 Qb3 Rh4 Qb2 Kh6 Rgc8 Rhh5 Ne8 Qhh4 Bb5 Qhg5 Qb1 Rh3 Bbc6 Qh5 Qbb5 Nfd1#
2B1qb1K/R2nBk2/1Nq2np1/1r4b1/QN1nn2Q/1q1bbn2/3R4/2N1N1Q1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Ra7 Bc1 Rb7 Nd2 axb4 Nb1 b3 Ke2 b4 Ke1 Rb5 axb5 Rh5 Bd2 Rh7 Bc1 Rh8 Ke2 e5 f4 d5 c4 g3 h4 g6 h5 e3 Kf3 d3 b6 b2 f5 e2 Kg4 e1B h6 b3 h7 g2 c5 e4 b7 d2 c6 d4 c7 d3 Ra8 e3 Nc3 b1Q Nf3 g1B Rh2 b2 Bh3 e2 Ra7 Qc2 Na2 b1N Ba3 Nf6+ Kg5 Qc6 Nc1 Nbd7 b8N Kf7 Na6 Nc3 Nb4 Nb5 Qa4 Ba6 c8N d1N Nb6 d2 Bg4 Bg3 Ne1 Qe8 Rf2 Rg8 h8Q Ndc3 Qh4 d1Q Rg2 Rg7 Kh6 Nd4 Rf2 Bd3 Rg2 Nfe4 f6 Nd5 Rh2 Rg8+ Kh7 Qb3 Bh3 Rg7+ Kh8 Be3 Bf5 Bgd6 Rf2 Bde7 Bg4 Ndc5 Bc8 Nd7 Rg2 Ke6 f7 B7g5 Rf2 Ndf6 Rg2 Bc5+ f8Q Rf7 Nec2 e1N Rd2 Nef3 Ne1 Re7 Qg3 Rf7 Qg1 Be7 Qg8 Bf8 Qh7 Re7 Qh4 Kf7 N4d5 Re5 Be7 Rf5 Nb4 Rb5
R1r1N1rQ/K1Bbq3/2N1n1pQ/q3q1q1/1b1BqR2/1NNk4/7r/rb4R1 w - - 0 1 illegal: No possible last move, all moves rejected
qnNB3K/2QR1qn1/3pR3/2rr3R/Q1br1n2/N1Bk1r2/4N2N/2nrq3 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 Kd3 Ke7 Ke4 Kd6 Kf5 Kd5 Kg6 Ke4 h4 f1R c4 b5 a4 d6 f5 d3 c5 g3 e3 f2 h5 b3 f6 g2 c6 b2 f7 b4 f8Q b3 h6 d2 c7 Ra5 h7 Nf6 Ne2 g1N Qf7 Rd5 a5 Nh5 a6 Be6 c8N Kd3 a7 Nh3 Na3 b1Q a8R b2 Qa4 d1R e4 Rd4 e5 Bc4 e6 N3f4+ Kf5 g5 e7 g4 e8N g3 Nf6 g2 Ng4 g1N Nh2 Qf8 Ra7 Ng7+ Kf6 Qa2 Rc7 b1R Rd7 Rb5 Bd2 Ra5 Bc3 Rc5 Ba5 Qd2 Bd8 Qe1 Ra2 Rg8 h8B Qe8 Rb2 Qe4 Rb5 Qa8 Rbb7 Rdd5 Re7 Re8 Rbd7 Rd4 Re4 Ree5 Qe7 Red5 Re6 Nf3 Kf7 Nd2 Kg8 Nb3 Kh7 Nc1 Qf7 Ngh5 Be5 Ng7 Kh8 Rg1 Bef6 f1Q Be5 Rg3 Bef6 Re4 Bc3 Rf3 Rg1 Rc7 Rg5 Rcc5 Rh5 Red4 Qb3 Rf2 Qa4 Nh3 Rb7 Rf6 Qfd7 Qf5 Qdc6 Qg6 Rbe7 Rf3 Qc7 Nf4 Rd7 Qf7
1b1nq1kB/q1B2p2/R3N1NR/7n/1b6/1qnQRb2/1r1RbBq1/2KQ2q1 w - - 0 1 legal: proof: d4 b5 h4 a5 g4 e5 f4 Nc6 h5 Nb8 Bg2 exf4 b4 axb4 Be4 c5 Bg6 cxd4 g5 Ra6 Be4 Rh6 Bg6 hxg6 gxh6 Qe7 Kd2 Qf6 Ke1 Qd8 Kd2 d5 c4 b3 e4 f3 a4 d3 e5 b4 a5 d4 c5 b2 c6 f2 a6 f1Q e6 g5 h7 g4 h6 g5 e7 b3 a7 g3 a8Q g4 c7 g2 Rh5 g3 Na3 b1Q Nc2 b2 Ra6 Bb7 c8R Nc6 Qg4 Qa1 Re5 b1Q Qh4 Qb3 Qg4 Nf6 Qf3 Nh5 Nh3 g1B Nf4 g2 Qd1 Bh2 Re6 g1Q Ng6 Bb8 Rc7 Qc8 Rd7 Nd8 Rec6 Rg8 h8B Rg7 Rcb6 Bf3 Qe4 Qfg2+ Qee2 Qaa4 h7 Qc7 Ba3 Qa7 Kc1 Rg8 Be5 Rg7 Bb2 d2+ Kb1 d3 h8B Rh7 Bc7 Rh6 Nd4 Qc6 Qc1 d1N Ne6 d2 Qd3 Be2 Bd4 Rh8 Bf2 Nc3+ Ka1 d1B Qcd2 Na2 Kb1 Nc3+ Kc1 Bf3 Rd5 Bde2+ Qd1 Rg8 Ngf4 Rg4 Ng6 Ra4 Rd4 Ra2 Ba1 Qca4 Rbd6 Rb2 Rh4 Ng7 Rh6 Nh5 Nef4 Ra2 Qe3 Nd5 Bh8 Nc3 Rd2 Rb2 Qd3 Bg7 Qf1 Be5 Qd1 Bd6 Ne6 Bb4 Nd4 Kd7 e8R Qc6 Re6 Qb5 Ne7 Ke8 Re3 Kf8 Ng6+ Kg8 Ne6 Qe8
2KBrbB1/r3bR1r/3bb2R/bQ3nN1/1p1q4/3NR3/b1QB2b1/1r3Bk1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Nc6 Bc1 Na7 Nh3 axb4 Ng1 b3 Na3 b4 Nb1 Nb5 axb5 Ra5 Ra3 Ra6 Ra1 Ra8 Kd2 Kf7 f4 Kg6 h4 Kf5 c4 g5 c5 d5 b6 e5 b7 g3 b8R e3+ Kd3 e2 h5 Kg4 h6 g2 h7 Kg3 c6 Kf2 c7 e1B f5 b2 f6 e4+ Kc2 g4 Kb3 g3 f7 d3 Be2 d2 Rb6 d4 Kc4 e3 Kb5 d3 Kc6 Nh6 Rh4 Qd4 Rh3 Nf5 Na3 b1R Nf3 g1B Nc2 g2 Ng5 Be6 Kb7 Bh2 c8B g1B Bf1 e2 Ra7 Bhd6 Re3 Bgh2 Bd7 Kg1 Ba4 Bde7 Bb3 Beg3 Ne1 Bgd6 Qc2 d1B Bd2 Bc7 Bc4 Bhd6 Rba6 Ba5 Bd5 Rg8 h8Q Rg7 Qh5 Rh7 Rc6 Bg7 f8B Re8 Qc1 Bb3 Qc2 Ba2 Rb6 Bh6 Bg7 Ra8 Bf6 Bg7 Qe8 Bgf8 Qb5 Re8 Bc3 d2 Nd3 d1B Bd2 e1R Bc4 Bd7 Bg8 Bde6 Rba6 Bg4 Rb6 Bh3 Rba6 Rd8 Rb6 Rd7+ Kc8 Bg2 Rc7 Bc5 Rbc6 Bed6 Bd8 Rde7+ Kb7 Re8 Rf7 Bde7 Kb8 Ra1 Rb6 Reb1 Rc6 Bcd6+ Kb7 Bec4 Kc8 Bcb3 Rb6 Be6+ Qd7 Bb8 Qc1 Bec4 Ne1 Bab3 Rc6 Bac7 Qb2 Ra7 Rh6 Ba5 Qc2 Ba2 Qb5 Bbd6 Nd3 Be6+
4bQ2/3Q1n1n/kr1bb2R/1qB2QpN/K1QNn3/1R1B4/2n1b1n1/4R1bn w - - 0 1 illegal: No possible last move, all moves rejected
1r3R1B/bk2r1QB/1nb1Nqr1/Rr6/1r2Q1rb/3p1r1N/2r3Q1/1N1K2Q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 g3 Na6 Rh3 Nc5 Rh1 Ne4 Nd2 g4 Nb1 Ng5 hxg5 fxg3 a4 h5 c4 f5 e4 d5 g6 Kd7 g7 Kc7 a5 b5 e5 d3 c5 f4 c6 b3 e6 d2+ Ke2 d4 e7 g2 e8Q f3+ Kf2 b4 a6 d3 a7 h4 Ra3 g3+ Ke3 b2 Qe1 d1R Rh3 f2 Ra5 b3 Ra3 Rd2 Ra4 Ne7 g8N Nd5+ Kf3 Rh6 Ra2 Rc2 Qh5 Nb6 Ra5 Bb7 Ke3 Qf6 Ne7 Rb8 a8Q Rg6 Nf5 Be7 Ng7 Bd8 Be2 f1R Qg5 Rf5 Rh2 h3 Ne6+ Kc8 c7 Bc6 Rh1 h2 Nh3 g1R Bf3 g2 Be4 Re5 Qf5 Rf1 Qg3 g1B+ Qff2 Reg5 Qg2 Rg4 Bd2 Be7 Bb4 Bd8 Bf8 Be7 Bg7 Bd8 Bh8 Be7 Nd2 b1R Bf5 b2 Qa7 Ra1 Nb1 Raa4 Be4 Rb4 Qb7+ Kd7 c8Q+ Kd6 Qe8 Rb5 Na3 b1R Bf5 Bd8 Qg7 R1b4 Nb1 Be7 Neg5 Kc7 Ne6+ Kb7 Be4 Rcc1 Kd2 Rce1 Qfg3 Rf3 Bf5 Bc5 Rf1 h1R Be4 Ree3 Kd1 Rh2 Qg1 Rc2 Q3g2 Rh6 Bh7 Rhg6 Qd8 Re5 Qd5 Bf2 Qe4 Bh4 Nc7 Bc5 Rf2 Re7 Ne6 Na8 Rf1 Ba7 Rf2 Nb6 Rf1 Rfg3 Rf4 Rf3 Rf5 Qa1 Rf8 Qf6
2R4n/1NN1r1R1/n1nQ1N2/n5Kn/Qr1r2bB/1bkn4/bp2B1BB/2b5 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 b5 a4 g5 Qd2 gxh4 Kd1 b3 Ke1 b4 Qd3 Qa5 Qd1 Qb5 axb5 Ra7 Qd3 Ra4 Qd1 Ra8 Kd2 Ke7 c4 Kd6 g4 Kc5 e4 f5 b6 h5 g5 d5 e5 d3 e6 Kd4 b7 f3 c5 f4 e7 f2 e8Q h3 c6 h2 c7 h4 g6 h3 g7 f3 Nc3 b2 Qda4 b1B Qec6 Rh7 Ne4 Nh6 g8B Re7 Ra2 Nf7 Rc2 Ba2 Qh6 Bg4 c8N Na6 b8B Nh8 Qf4 Bh6 Bg2 f1N+ Ke1 d2+ Kf2 d1B Rc5 Ne3 Kg3 f2 Kh4 f1N Nb6 Nd2 Rc8 Nc2 Qb3 Nc4 Qbf3 b3 Ba3 b2 Q4g3 Bc1 Qd6 Ncb4 Nc5 Na5 Qe4+ Kc3 Nf3 d4 Nb7+ Nbc6 Bc4 d3 Ng5 d2 Nh7 Bdb3 Rg1 h1N Nf6 d1R Be2 h2 Qa4 Ng3 Bc5 h1N Bf2 Rd2 Kg5 Nh5 Bh4 Nf2 Bc7 Ra7 Na8 Nd3 Bb8 Re4 Nc7 Rd4 Rf1 Rf4 Rf3 Rd1 Re3 Rd2 Re7 Rb4 Rh7 Ndf4 Rd7 Rdd4 Rg7 Nd3+ Qf4 Rbc4 Ne6 Nac5 Nd6 Re7 Nb7 Bd1 Be5 Rb4 Nc7 Na6 Bd6 Re3 Qe5 Bdb3 Qe7 Ndc5 Bh2 Nd3 Qd6 Re7+
1qKBq3/3N1RB1/1q3p2/Q3qrQN/2Rn1QnN/rr3N2/k4n1r/b3n3 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 g5 a5 Bd2 axb4 Be3 Qf6 Bc1 Qd8 g6 h5 Qd3 f6 Qa3 b6 Bh3 Bb7 Bg4 hxg4 Qd3 Bd5 Qd1 Bf7 gxf7+ Ke7 Kf2 Ke6 c4 d5 h4 g5 a4 g3+ Kf3 g2 Kg4 b5 e4 f3 e5 d3 a5 b3 a6 d2 a7 b2 c5 b4 h5 d4 h6 Kd5 Kf5 Kc4 Ke6 d3 h7 b3 c6 f2 c7 f1R c8N g4 Nf3 g1N Nh4 g3 Nf3 g2 Ra4+ Bb4 f8Q Nh6 Qg8 Ng4 Qg5 Nc6 Nh4 Rf5 Qf3 d1Q Be3 d2 Bb6 Qe2 Qff4+ Qd4 Rh2 d1N Bd8 Ndf2 Nd2+ Kc3 Ndf3 b1R Nb6 Kb2 Rh3 Bc3 Rc4 Ka2 Nd7 b2 Rh1 Qb6 Kd6 Qa5 e6 Nd4 e7 Qb5 Kc7 Qbe5+ Kb7 Qe1 e8N Q1e2 Ne1 Ngf3 Ng7 g1Q Nh5 Qe8 Rh2 Q2e5 Rg2 Nc2 Rh2 Nfd4 Nef3 Ne1 Rh1 Rg8 h8B Qg3 Bg7 Rh8 Ng6 Qg1 Ng3 Rh2 Ngh4 Rc1 Nh5 b1Q+ Nb6 Bb2 Nd7 Qg3 Rg1 Rc3 Rh1 Ra3 Rg1 Rc8 a8Q Rc5 Qa6 Rb5+ Kc8 Ba1 Qa5 Rb3 Rh1 Nec2 Rd1 Ne1 Rd3 Rc3 Re3 Qb6 Rd3 Rb3 Re3 Qeb5 Re7 Qb4 Rf7 Qbf8 Qe3 Qge5 Qc1 Qfd6 Qcf4 Qdb8+
Nnb2b2/1rq1R3/r1kb3Q/n1p2pnr/2K3NR/1R6/1QbQ1b2/2QB2B1 w - - 0 1 illegal: No possible last move
2R4Q/b1b1nrQ1/n2RQ2Q/B2q4/2rN1Nbn/1n1Nq1pB/k1n1p3/6K1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 c5 d4 cxd4 Kd2 f5 Ke1 b5 axb5 fxe4 Bh6 axb4 Bd2 Rh4 Bc1 Rh8 h4 Kf7 c4 Ke6 f4 g5 Kf2 d5 h5 b3 b6 b2 b7 g3+ Kg2 g4 c5 d3 h6 d2 c6 d4 c7 Kd5 f5 e5 h7 e3 f6 e4 f7 d3 Qe1 Kc4 Ra6 Kb3 Rb6+ Ka2 Qe2 d1N Qe1 e2 Rbh6 e3 R1h2 d2 R6h4 Qd5+ Nf3 Ne7 Kg1 g2 Rh1 Ra4 Nd4 Na6 b8N Rc4 Qg3 e1N Nbc6 e2 Rh6 Nc2 Rd6 Nde3 Ne5 d1Q Nd3 N3f5 Bd2 Qc1 Ba5 Nh4 Rh3 Rg8 h8Q Rg7 Rh2 Bf5 c8Q Qd2 Qe6 Qe3+ Nf2 Rh7 Qge5 Bh6 f8Q Bf4 Qfh6 Rf7 Qeg7 Be5 Nd2 b1N N2b3 Bf4 Nc5 Nd2 Nd3 Be5 Nf4 Nb3 Rb6 Bc7 Rd6 Bg6 Rh3 Bh5 Rf3 Qc1 N2d3 Qe3+ Kh2 g1B+ Kh1 g3 Bh3 Ng2 Rf1 Bg4 Rb1 Nc1 Rb8 Nb3 Rc8 Qd2 Nb5 Ba7 Nd4 Nh4+ Kg1 Qe3+
2N5/K1bkq2r/3B4/q1Q2n2/b1nQBq1p/4R2R/Np1NNqn1/3Bq1r1 w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 Kf2 h3 d4 c5 g4 f5 e4 b5 d6 h5 d5 h4 g5 b4 g6 h2 e5 f3 Ke3 f2 e6 b3 g7 f4+ Kd3 b2 Kc4 a2 Kb5 c4 e7 f3 Bg2 f1Q Qc2 f2 Bf4 Nd7 Nd2 Rh7 Re1 Nh6 g8N a1Q Qc1 Ne5 d7+ Kf7 d6 Ke6 e8B Nf5 Ne7 c3+ Nc4 c2 Bh5 Qc7 d8Q Bd7+ Bc6 Ra3 Nc8 Rg3 Bd1 Qaa7 Qe3 c1Q Qc5 Qg2 Re4 f1N Ne2 Qe3 Nd2 Qgf2 Bc2 Be8 d7 Bd6 Bd1 Qef3 Ba8 N1e3 Bc6 Qa3 Ba8 Qc3 Ka6 Qg4 Bb7 Qg7 Ka7 Qe7 Qb5 Q7c4 Qc5 Bc7 Bc6 Nc2 Bb7 Ne1 Re3 Qe4 Bc6 Nc4 Be5 Qef4 Be4 Bh5 Qh8 Be8 Bd6 Rg6 Qhd4 Qb4 Rg1 h1Q Rgg3 Qhf1 Rgf3 Rg1 Rh3 Ng2 d8N+ Kd7 Rd3 Q1e1 Nc6 Ke6 Rde3 Qc3 Nb4 Ba4 Na2 Kd7 Rh2 Qb4 Rhh3 Qa5+
kqBr2B1/r1RB2K1/2Nnn3/2Q2q2/4p3/5NQp/1Qq1qq1r/b2R2Bb w - - 0 1 legal: proof: e4 d5 f4 b5 Kf2 a5 Nh3 g5 Ng1 d4 Ke1 Ra6 Nf3 Rd6 Ng1 Rd5 exd5 Bg4 Be2 Bf5 Bf1 Bc8 b4 axb4 h4 c5 d3 c4 h5 cxd3 h6 Qd6 Qe2 gxf4 Qh5 Qxh6 Qd1 Qh2 Kf2 Kd7 Kf3 Kc7 Ke4 Kb7 Ke5 f5 g4 h5 a4 d2 c4 b3 g5 b4 d6 f3+ Kd5 e5 d7 b2 Ke6 f2 Kf7 f4 d8Q d3 c5 h4 g6 b3 a5 f3 g7 Nf6 g8B Bg7 Qe1 d1Q Ne2 d2 Nbc3 b1Q Bg2 f1Q Qf8 b2 Qe7+ Nbd7 Ne4 f2 Nd4 Ne8 a6+ Ka7 c6 Bb7 c7 Nc5 c8B h3 Qc7 Rh7 Ra2 Ne6 Ng5 Qfe2 Bc6 f1R+ Qf2 Rg1 Qg3 Rg2 Ra3 Qa4 Rc3 d1R Be3 Qb3 Qe7 Qf5+ Qf6 Rd2 Rd1 b1Q Bg1 Q3c2 Bb5 Rf2 Ba4 Bh1 Ngf3 e4 Bb5 Kb6 a7 Qb4 a8Q Rg2 Qc6+ Ka7 Qc5+ Ka8 Qc4 Rf2 Ba4 Qb8 Qb5 Qg2 Rc6 Qgf1 Qc5 Rh2 Bb5 Qff2 Ba4 Qd5 Qfe5 Bf6+ Kg6 Ra7 Rc7 Bh8 Qf6 Qf5+ Kh6 Nd6 Be8 Nc4 Nc6 Rd8 Bed7 Nd6 Qa1 Qa4 Qb1 Ba1 Qb2 Qd5 Kg6 Qac2 Kh7 Qf5+ Kh8 Ng5 Kg7 Ne6+
1Qb1kN2/rb2b1K1/4bn1p/1r6/1Nnq1n2/1R3N2/QN2bp1R/B1q1B2B w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 d5 Kd3 f5 e4 h3 c4 b3 g4 h2 b6 b2 e5 h6 c5 f3 c6 f4 c7 f2 e6 f3 g5 Ra7 e7 Bd7 c8N Be6 b7 Ra4 g6 Bg4 g7 Qb6 Bg2 f1N Nd2 b1Q+ Qc2 f2 Nc4 Nd7 b8B Ndf6 Nf3 Nd2 Be5 Nh5 Nb2 Ra7 Ra3 Nc4 Bd2 Ngf6 g8Q Be6 Rb3 Qc1 Be1 Qc5 Nb6 Rh7 Rg1 h1B Nd7 Rb7 Qb1 Rb5 Qa2 Rg7 Bf1 Bg2 Rh1 Bgh3 Bg2 Bhg4 Nb6 Bc8 Nd7 Be6 Rh2 Qb6 Bh1 Rf7 Ke2 d3+ Kf1 d4 Kg2 Nf4+ Kg3 d2 Kh4 d1B Qg3 Bg7 Nf8 d3 B5c3 d2 Bd4 Nh3 Qb8 Be2 Be5 d1B B5c3 Nd5 Kh5 Qd4 Kg6 Nhf4+ Kh7 Bf6+ Kg8 Rg7+ Kh8 Kf7 e8N Be7 Nc7 Nf6 Nd5 Ke8 Nb4 Bc2 Na4 Bb1 Ba1 Be4 Nb2 Bb7 Qa6 Rgg5 Qa2 Rgf5 Kg7 Ra5 Ng5 Ra7 Nf3 Rb5
3NB1R1/B2qQnK1/3pbrnr/1b2b3/1Bp1b3/R1N1NkqQ/7b/1B5q w - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 g5 d4 gxh4 a5 b5 cxb5 Qxa5+ Kf2 c4 d5 Qd8 d6 Bxd6 Ke1 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 b4 Kg4 Ke5 h5 e4+ f3 g3 a5 b6 f5 b7 f4 b5 h3 b6 h4 Qb3 a4 Bg2 h2 Nh3 f2 Ng5 f1B Ba3 f3 Bb4 h3 Nc3 a3 Ne6 f2 Rg1 Ne7 Kf6 h1B e5 h2 Be4 a2 Bb1 Nbc6 b8B Kf3 g4 Bh3 g5 f1Q b7 Qd3 g6 Ra6 Ba7 Rh6 b8Q Qe8 Qc7 Nd8 Qd6 Nf7 Nd8 Be6 Rg4 Bg2 Qa3 h1Q Qc7 Rh8 g7 Ng6 g8N Bd6 Kg7 Rh6 Nf6 Bb7 Rg5 Bc6 Ng4 Bb5 Ne3 Qe7 Rg4 Qeh4 Rg5 Qg3 Qc5 Bb8 Qe7 Qgh2 Qc1 Bg4 e6 Nf4 Bbc5 Kf2 Kf8 Be4 Rg8 Kf3 Qe8 Ng6+ Kg7 Rd6 e7 Rf6 Qe1 Be6 Qh4 Qf2 Ba3 Bh2 Bb4 Qg3 Qh3 Qd5 Qf8 Qb7 e8B d6 Qe7 Qd7 Bd3 B4f5 Rb1 Be4 Rb3 Ba6 Bb1 Bb5 Ra3 a1B Na2 Bd4 Nc3 Be5
bQ4qN/2Q1R1rq/n2K2R1/2q3b1/p1Bn4/Qn3b2/p1Nk2B1/3BnQ1r w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 c4 e5 h4 exf4 b5 g5 Ba3 gxh4 Bb4 d5 cxd5 cxb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g4 f5 d6 a5 b6 h3 d5 b3 d7 h2 d6 f3 b7 f2 g5 f4 g6 b2 g7 f3 Nd2+ Kc3 e4 b1Q Qc1+ Qc2 Bh3 f1N Qb1 a3 Nb3 h4 Qd1 a2 Nd4 f2 Ngf3 a4 Bg2 h3 Rg1 h1Q Ng5 h2 Nf7 Na6 b8Q Nd2 Qf1 Ra7 Re1 Nh6 g8B Nb3 Ke6 Rc7 e5 Be7 Kd5 Kd2 e6 Qc1 Nc2 Bg5 e7 Nf5 e8B Nfd4 Re7 Bb7+ Ke5 Rh7 Nh8 Ba8 Bc4 Rb7 Bh5 Qg8 d8Q Ra7 Re6 Rag7 d7 Qa3 Qdc7 Qc5+ Bcd5 Rh6 d8Q Rhh7 Qf8 Rh6 Qa1 f1N Re7 Ne3 Qaf1 Rhh7 Bd1 Rh6 Be4 Ng2 Bd3 Ne1 Bc4 Qf3 Rg3 h1B Rg4 Qd3 Q8f3 Bh4 Rg6 Bg5 Q3h3 Bf3 Qg3 Qa5 Kd6 Rh1 Be4 Bg4 Bg2 Bgf3 Qe5 Qe4 Qec5 Qh4 Qa3 Qhh7 Ne3 Qf5 Nc2 Qc5+
2R2r1q/2b2b1n/B1kpr3/8/2N1Nq1B/bQ1RR2K/BRn1p3/nQ1br3 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 c4 h5 g4 e5 f4 h3 Kf2 h4 g5 b3 f5 h2 Kg2 d3 g6 h3+ Kg3 b2 f6 e3 b6 e2 b7 e1B+ Kg4 e4 g7 d2 c5 e3 c6 e2 c7 Nc6 b8Q Na5 Qc2 d1B Qc3 Ra6 Ra2 Ba3 Bg2 Re6 Nd2 b1N Qcb3 d6 f7+ Kd7 f8R Qf6 Ngf3 Kc6 Rb2 Ba6 c8B Bc4 Ba6 Qf7 Rf1 h1Q Re8 h2 Ne4 Bd5 Bh6 Qf4+ Kh3 Nf6 g8R Nh7 Nfd2 Bc4 Rg3 Rf8 Rd3 Bf2 Rd8 Bb6 Rc8+ Bc7 Bg5 Bd5 Bh4 Bc4 Qc3 Nb3 Rff3 Na1 Qcb3 Qe1 Nf1 Qc3 Nfd2 Qh8 Rfe3 Bd5 Bf3 Bc4 Q8b4 Bd5 Nc4 h1R+ Kg2 Re1 Kh3 Nc3 Bh5 Nb5 Bf7 Nd4 Qc2 Nf6 Qb1 Nh7 Qb3 Ndc2 Ncd2 Re5 Qb4 Bc4 Qa4+ Bb5 Ba2 Ree8 Qb4 Bc4 Qb3 Bf7 Nc4 Re6
1b4qN/2KpB1R1/3Q1nbr/BN2n2N/1r4kn/N3r1q1/2B1p1nR/Q5b1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 Kf7 c4 Ke6 f4 Kf5 c5 h5 c6 e5 g3 h3 b6 h2 b7 b3 c7 b2 Bc4 e3+ Kd3 e4+ Kc2 e2 Kb3 e1B Bd3 h4 Kc4 h3 Kd5 Nc6 b8B Bb7 c8N Bf2 Bd6 Ra3 Bc2 d3 Be7 e3 Kd6 e2 Nf3 Ba7 Nh4+ Kg4 f5 d2 f6 Ne5 f7 Rh6+ Ng6 Re3 Na3 Nf6 Nh8 b1R Bb2 Bd5 Bc3 Be4 Ba5 Rb4 Qg1 Bg7 f8Q d1N Qf1 Qe8 Kc7 Bg6 Nd6 Qf7 Qb8 Qg8 Ndb5 Bf8 Rg1 h1Q Qb6 h2 Qd6 Qg2 Rb1 Kh3 g4 h1N g5 Ng3 Rh1+ Kg4 Rh2 Nf5 Qg1 Bf7 g6 Nh4 g7 Bg6 Qe1 Qf2 Qc3 Qg3 Qa1 Nb2 Re1 Nbd3 Rg1 Ne1 Rgg2 Qh7 Rg1 Neg2 g8N Kg5 Kb7 Qe1 Qad4 Reb3 Kc8 Be4 Rgh1 Nf4 Qe6 Qg7 Bc5 N6d5 Bcb6 Bc5 Nf6 Qg8+ Bd8 Rh3 Nh5+ Nf6 Qb2 Rg3 Rg2 Bg1 Qd6 Kf5 Qc1 Re3 Rg7 Qg3 Kc7 Nfg2 Rh2 Bd3 Be7 Be4 Rf7 Kg4 Rg7+ Bg6 Qa1 Bb8+
rkB5/1N2Bn2/3n2p1/Nn2b3/R3b1n1/3Q2BB/QnpRb3/Qr1qb1K1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 e5 c5 exf4 c6 axb4 axb5 dxc6 Ra4 c5 Ra1 c4 Kf2 Kd7 h4 f5 e4 c5 d4 Kc7 e5 c3 e6 c2 h5 c4 e7 g3+ Kg2 f3+ Kh3 f4+ Kh4 c3 d5 g2 h6 g6 h7 f2 Nf3 g1B Qe1 b3 Qd2 b2 Na3 b1N Nc4 Na6 d6+ Kb8 d7 Nc7 Kh3 Na3 Kg2 Nh6 e8B Nf7 b6 Bb4 b7 Bh2 Nfe5 Ncb5 Na5 Nbd6 Nec4 Nab5 Ba3 c1N Qa2 c2 Rg1 Rg8 h8Q f3+ Kh1 Nd3 Bh3 f1N Rg2 Bc3 Rd2 Bhe5 Kg1 Ne3 Qg7 Ng4 Qf6 Qe7 d8Q Nb2 Bd7 Qe6 Qh8 Qd5 Bb4 Ne4 Nd6 f2+ Kh1 f1B Kg1 Be2 Bf5 Bg3 Qd4 Re8 Q8f6 Bf4 Qd3 Bfe5 Be6 Bd7 Qf1 Bc6 Bc8 Bg3 Qc1 Be1 Qcb1 Be5 Qc1 Ka7 b8B+ Kb6 Qab1 Bh8 Rd1 Bec3 Qg5 Bf1 Ndb7 Qd8 Bf4 Ka7 Qd7 Bhg7 Rd6 Kb8 Qd5 Re5 Qdd1 Rf5 Rd4+ Be5 Bg3 Be2 Ra4 Bd5 Qa2 Rf1+ Kg2 Bd2 Qda1 Rb1 Be7 Be1 Kg1 Bc6 Qf5 Qd5 Rd1 Ned6 Qe4 Qd2 Qd3 Qc1 Rd2 Qd1 Rd4 Bg2 Ra4 Be4
1n1N3Q/1r1b1BR1/N1nN3q/r4KQ1/3b1nnQ/1p1B1Np1/r2q1R2/1rk5 w - - 0 1 illegal: No possible last move
2nr1qrR/2q5/kn2b3/2qB2p1/K2Bp3/NQQR4/N2N2n1/nbN1q1B1 w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 h5 Bg5 fxe6 Bd2 e5 Bc1 e4 g4 hxg4 a3 b5 Ke2 e6 Nf3 b3 Kd2 b4 Ng1 b2 Ke2 b3 Ke1 Bb4+ axb4 Ra2 Bd2 Ra6 Bc1 Ra8 Kd2 d5 f4 Kd7 h4 Kc6 c4 Kb6 c5+ Kb7 h5 g5 c6+ Kb6 b5 d3 Kc3 e3 Kb4 d2 h6 e5 c7 e4 f5 e2 h7 e1N f6 d4 f7 g3 f8N d3 Ra3 g2 Ng6 Qf6 Nf3 g1Q Nge5 Be6 c8Q Ne7 Qc3 Rg8 h8B Ng2 Rh7 Kb7 b6 Qf8 Bf6 Nd7 Rh8 Re8 Ka4 Ka6 b7 Qc5 Be2 Nc8 b8N+ Kb7 Bf1 Rd8 Nbc6 Ka6 Qdc2 d1Q Be3 Qd2 Bg1 Qf4 Nfd2 Qh2 Be2 Qf4 Bh5 Qh2 Bf7 Qg3 Ndc4 d2 Nd3 d1Q Nbd2 b1N Nc1 b2 Bfd4 Qc7 Q2b3 Qe1 Nb4+ Kb7 Ra1 Na3 Nba2+ Ka6 Rb1 Nc2 Na3 Bf5 Bd5 Na1 Nd3 Bh3 Rd1 b1B Ndc1 Be6 Nf3 Q5a7 Rd3 Qac5 Nd2 Ndb6+
Q1RN1n2/1K1kqb1B/rBpp4/2n2R2/rrQ3Q1/RNq3b1/1R6/q2q1r2 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 d4 gxh4 c4 c6 c5 Bxc5 d5 Bf8 d6 Bxd6 Qd3 Bf8 Qd1 d6 Kd2 f5 Kc3 h5 Kb4 a6 g4 h3 e4 h4 b6 h2 Ka5 h3 b4 f3 g5 f2 b5 f4 g6 f3 g7 Be7 e5 Rh4 e6 Nf6 Be3 Nh7 g8Q+ Nf8 Bd3 f1Q Nd2 f2 Bh7 Qc4 Ne2 Nd7 Rf1 h1Q Nd4 h2 Qa4 Rf4 Qg4 Bh4 e7 Bg3 Ne6 Qc3+ Qb4 Qc7 Nd8 Qd5 Bd4 h1Q Ra4 Qa7 b7 Qg1 b8Q Qdf3 Bb6 Nc5 Bc7 Be6 b6 Bf7 b7 Qgh1 Raa1 Qh4 Qbc8 Qd1 b8R Qhf6 Qb7 Qe6 Rc8 Kd7 e8R Rb8 Ra4 Qa8 Kb6 a5 Ra1 a4 Nb3 a3 Qa4 a2 Qd4 Qf5 Re2 Qe6 Rb2 Qa3 Qd3 Ra8 Qde2 Rb4+ Qb5 Ra5 Qa8 Qa4 Qg5 Qe7 Qg4+ Nce6 Kb7 Ra6 Bb6 Qa5 Rh1 f1R Rh5 Qa4 Rf5 Qa5 Rab1 a1R Qbc4 Qa3 Ra2 Qac1 Rab2 R1a4 Ra1 Qb1 Raa2 Qa1 Ra3 Nc5+
1R2b1kB/1pK2p2/7b/2nn1N2/nQ5b/q2NRrb1/2RBBQqn/4B1r1 w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 Kf2 h5 Kf3 c5 Ke4 c4 Ke5 c3 d4 f3 e4 h3 g4 a2 d6 c2 d7+ Ke7 g5 f2 g6 h4 g7 h2 d5 h3 Nf3 Na6 Nbd2 Nc5 Nd4 Na4 Qf3 Qa5 N2b3 Nf6 g8Q Nh5 Be2 f1N Qgg4 Bh6 d8B+ Kf8 Kd6 Nf4 e5 Bd7 e6 Rg8 Nf5 Be8 Bd2 c1B Qf2 Rg5 e7+ Kg8 Rg1 h1N Rg3 h2 Re3 Nhg3 Nc5 h1Q Nd3 Nh2 Be1 Qc3 Ba5 Qa3+ Kc7 Ne4 d6 Qg2 d7 Nec5 d8B Bb2 Rc1 a1B Bad2 Bf6 Rc3 Rg6 Rc2 Bh4 Qgf3 Raa6 Qe4 Raf6 Qb4 Rg3 Bc3 Rfg6 Bh8 Rf3 Bd2 Bg3 Be1 Bf6 Bd2 Bfh4 Be1 Bb5 e8R+ Bf8 Be7 Bc6 Rb8 Be8 Bg5 Bh6 Qe4 Rb6 Qd4 Rb1 Qb4 Ra1 Bgf6 Rc1 Bfc3 Rb1 Bed2 Rh1 Be1 Rg1 Bcd2 Nd5+
2nqQ2N/4B1NR/rN1N1prK/4n1QQ/4qB2/2r1R1b1/kp3rn1/r3q3 w - - 0 1 illegal: No possible last move
2N4Q/6n1/B4pn1/2KR1q1b/1Q2R2Q/pnb1R2r/1q1Qqb2/knNn3B w - - 0 1 legal: proof: f4 b5 g4 e5 a4 exf4 d4 bxa4 g5 c5 g6 cxd4 Qd3 f6 Qd2 Bb7 Qd1 Bc8 Bd2 a5 Be3 h6 Bf2 Ke7 Bh4 Rh7 Qd3 Rh8 Bg5 hxg5 Qd1 Ra6 Qd2 Re6 Qd3 Kd6 Qd2 Re7 Qd1 Rf7 gxf7 Ke7 Kd2 Ke6 Kd3 Kd5 h4 g4 b4 g5 b5 f3 b6 f2 c3 a3 e3 g3 b7 a4 h5 g2 h6 g4 h7 a2 Qc1 a3 Qd1 g3 Rh3 Nc6 b8Q Bb4 f8Q Qa5 Qe1 Nd8 Be2 f1Q Qc1 Ne7 Qd1 Ne6 Qf4 Ng6 Qd2 Ng7 Qh4 d6 Qe7 Bg4 e4+ Kc5 c4 Bc3 e5 Kb4 e6 Kb3 c5 d5 c6 Bh5 c7 Qf2 Qh6 Kb2 c8B Qb6 Nd2 Qf5+ Ne4 Qb4 Nf3 g1B Rd1 a1N Bb7 g2 Ne1 Nb3 Re3 Bf2 Q6g5 Qb6 Qb4 g1N e7 Nf3 e8R Nd2 Bf3 Ka2 Bh1 Nb1 Ba6 Ka1 Qh6 Qd7 Nd6 Qf5+ R8e4 Qb8 Nc8 Qh2 Rf3 Qhe5 Qd2 Qb8 Ke2 d3+ Kf1 d4 Rfe3 Rd8 h8Q Qb6 Qc1 d2 Nd3 Rd7 Qc2 Ra7 Nc1 d3 Rde1 d1N Qd2 Rb7 Rd4 Re7 Rd5 Re4 R1e2 Rf4 Re4 Rf3 R2e3 Qd4 Qe1 d2 Ke2 Qde5 Kd3 Rh3 Kc4 Nb2+ Kb5 d1Q Kc6 Qe2 Qd2 Nd1 Kb6 Na5 Kc5 Qb8 Qbd4 Qb2 Qb4 Nb3+
r4rB1/1n1K1qQQ/Rp1N4/5bpR/3q3N/q5Nr/1B5b/BNbb1bk1 w - - 0 1 illegal: No possible last move
1BBQ2N1/1ppqb1r1/Qbn1b3/2q4B/1k1Nr1Q1/q1Rrr2r/2K3R1/2B5 w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 a5 b4 axb4 f5 e6 Qb3 exf5 Qd1 Nc6 Ba3 Nd4 Bc1 Ne6 Nc3 fxg4 Nb1 g3 Bh3 g4 Bf1 Ng5 hxg5 Qe7 Na3 Qf6 Nb1 Qd8 d4 Kd7 Kd2 Kc6 a4 h5 e4 f5 e5 f4 e6 b3 e7 f3 e8B+ Qd7 g6 g2 d5+ Kc5 d6 c3+ Kd3 f2 g7 g3 a5 b2 a6 h4 a7 c2 Kc3 h3 Nd2 b1R Ra2 h2 Ne2 g1R Bh3 f1R Bh5 g2 Nd4 Be7 Qg4 Rb4 Kd3 Ra4 Ne4+ Kb4 Nf6 Rf3+ Be3 Rb8 a8Q c1Q Qa6 Qa3+ Kc2 Re1 Bf2 Ree3 Rc1 h1Q Bg1 Rd3 Be3 g1B Bf2 Qf5 d7 Rfe3 d8B Qhd5 Rb2+ Kc5 Ra2 Be6 Rb2 Qd7 Ra2 Nh6 g8Q Kb4 Q8g5 Qfd5 Ng8 Nf7 Qf6 Ne5 Qfh4 Bd6 Bg5 Nc6 Bf4 Qe5 Qd8 Be7 Ne2 Na7 Qg6 Bf7 B5g4 Qdd4 Qe8 Rf3 Kb1 Qd7 Nh6 Qdf5 Rc3 Nc6 Ba7 Bb6 Bc1 Rfe3 Qd7 Rbe8 Qd8 Reg8 Bb8 Rg7 Ng8 Qc5 Qe6 Rh4 Bh5 Qfd5 B3g4 Rhh3 Rd2 Qdd4 Kc2 Qdd6 Qe4+ Bc4 Bc8 Qd7 Qf3 Be6 Qg2 Qc4 Qg4 Kc5 Ng3 Rb4 Nf5 Ra4 Rg2 Rb4 Qa7 Kb5 Qa8 Qc5 Qa7 Rf4 Nd4+ Kb4 Qa6 Rfe4
2bB2qQ/Kq6/2R1Q1QN/1b1Q2p1/1R4N1/prb4k/nb3bq1/2b2BBr w - - 0 1 illegal: No possible last move
3N2nR/6np/q1q2r2/QB4R1/K1N4k/rQ1rB1pr/r1q1Q2Q/3Rb1r1 w - - 0 1 illegal: No possible last move
2b1N3/k4p2/b2n3R/1p2n1NQ/R4bB1/2bbr1Q1/n1bR2q1/K1NRq2B w - - 0 1 legal: proof: d4 a5 h4 e5 b4 axb4 f4 exf4 g3 c5 Ba3 b3 Bb4 cxd4 Be7 b5 Bg5 h6 g4 hxg5 Kf2 Rh5 gxh5 Ra6 Ke1 Rh6 Qc1 Rh7 Qd1 Rh8 Kd2 d5 Kc1 Kd7 Kb2 Kc7 c4 Kb6 e4 f3 a4 g4 e5 g5 e6 d3 e7 g3 e8R f2 c5+ Ka7 c6 g4 h6 d4 h7 d2 c7 d3 h5 g2 h6 g3 a5 Bb4 a6 Nd7 Rh2 Qh4 Ra2 Ne7 Be2 f1B Nf3 g1B Ra4 g2 Ng5 Be3 Bg4 g1Q Qe2 d1B Qf2 d2 Rd8 Bd3 Nc3 B1c2 Qg3 d1N+ Ka1 Ne5 Ne2 Re8 h8R Nc3+ Nc1 Nf5 h7 Na2 Rd2 Qg2 Rd6 Ba5 Rh6 Re7 Rd8 Bf4 h8Q Nd6 Qh7 Bb7 Qg6 Qhh1 Qh5 Qe1 c8B Re8 Bcd7 Bf5 Bc6 Bfc8 Rd1 Ng6 Rd7 Re3 Be4 Ne5 Rd2 Kb6 a7 Ba6 Rd8 Bd3 a8N+ Ka7 Nc7 Bc3+ Rb2 Qc2 Bh1 Qg2 Ne8 Bc4 Kb1 Bf1 Rd2 b2 Kc2 b1B+ Kb3 Bb4+ Kb2 Bfd3 Ka1 Bbc2 Rd1 Nf5 Rd4 Nd6 Rd5 Be2 R5d2 Bed3 Qgh4 Ba5 Qg3 Bc3+
n3B3/3BR3/1rpNNkB1/1QBbR2r/4Qp2/2Q3q1/1n6/rqn1rnnK w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 a5 b4 axb4 f5 e6 Bb2 exf5 Bc1 Be7 Bg2 fxg4 Bf1 g3 Qb3 g4 Qd1 Bg5 hxg5 Qf6 Ba3 Qd6 Bc1 Qd8 e4 Ke7 a4 h5 d4 f5 a5 b5 e5 h4 d5 f4 g6 c6 a6 b3 g7 h3 a7 b4 e6 h2 d6+ Kf6 e7 c3 e8B c2 d7 g2 Kf2 b2 Qd2 g3+ Kf3 b3 Nh3 g1N+ Kg2 Ne7 g8B Nf5 Ng5 Na6 Ra5 Rh5 Nc3 b1R Ne6 b2 Bgf7 Nd6 Bg6 Nc7 Re5 Nc4 Nb5 Nf3 Rg1 h1R Qc3 Nh2 Be3 c1N Nd6 Ba6 Be2 Nf1 Bc5 Qb8 Bg4 Qb3 Bh3 Rb8 a8Q Rb6 Qc8 Ra1 Qb8 b1Q Bg4 Na8 Qb7 Nfd2 Rge1 Nb2 R1e3 Re1 Re2 Rb4 Qb5 Nf1 Kg1 g2 Bh3 Nd2+ Kh2 g1N Kh1 Bc8 R2e4 Qa3 Re3 Nf1 Re2 Qa7 d8Q+ Qe7 Qda5 Qg7 Qaa4 Rb3 Qe4 Ba6 Qba5 Bc4 Qb5 Bd5 Nd4 Rg5 Bhd7 Rb4 Ne6 Rb3 Qbc4 Rb6 Qb5 Rf5 Rh2 Qg8 Rh7 Rg5 Re7 Rf5 Bh7 Qg3 Bhg6 Rh5+
1q1b2n1/Q1B1nBn1/3Rp3/2b3K1/2Np4/5q2/RQQn3B/NrQ1qbbk w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Ra7 Bc1 Rb7 Nd2 axb4 Nb1 b3 Ke2 b4 Ke1 Rb5 axb5 Rh5 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 c4 Kf6 h4 Ke5 f3 Kf4 c5 Kg3 f4 g5 h5 d5 c6 e6 f5 d3 Ke3 b2 c7 d2 f6 b3 h6 Ba6 c8Q Be7 f7 Qf8 b6 Nc6 b7 Bd8 h7 Nce7 Na3 b1Q Nh3 b2 Bd3 Kg2 b8B g3 Qcc2 g4 Kf4 e3 Bc7 e2 Nf2 e1Q Bg6 Bf1 Rh5 Kg1 Nd3 g2 Nc4 g3 Rf5 Kh1 Ra2 g1B Nc5 g2 Nb3 Ba7 Na1 g1B Kg5 d4 Rd5 Bb6 Rd6 Bc5 Qe2 d1N Bf4 Ne3 Bh2 N3f5 Qf2 Qg7 f8Q Qf7 Qh6 Ng7 Bh5 Qf3 Bf7 Qb4 Qfd2 Qe1 Qdc3 b1N Q3b2 Ne8 Qg7 Nd2 Qcc1 Qb8 Qg6 Ngf6 Qgc2 Rf8 h8Q Ng7 Qh4 Nfg8 Qhe4 Re8 Qa8 Rf8 Be8 Rf4 Bf7 Re4 Qa5 Re3 Qa7 Rb3 Qba3 Rb1 Qac3 Qff2 Q3b2 Qf3
1Qn1n1n1/RK1r2R1/p2qBN1b/qB4B1/BbQ3N1/k3b3/1p2N3/1bn3q1 w - - 0 1 legal: proof: f4 e5 d4 exf4 a4 h5 g4 hxg4 Nd2 c5 Nb1 cxd4 Nh3 b5 Ra2 b4 Ra3 a6 Ng1 Ra7 Ra1 Rb7 b3 Qa5 Ra2 Rb5 axb5 Qa3 Ra1 Qxb3 Na3 Qa2 Nb1 Qb2 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 h4 d5+ Ke5 f5 e4 g5 c4 f3 b6 d3+ Nc3 d2 h5 f4 h6 d4 h7 b3 b7 Kb4 Kd5 d3 c5 g3 c6 g4 c7 f2 e5 f3 e6 g2 e7 g3 e8B Qa2 Ne4 b2+ Ke5 Nc6+ Kf4 Ka3 b8Q Bb4 Ng5 Na7 Ke5 Bf5 Rh4 Nc8 Be2 f1Q Rh2 f2 N1f3 g1B Ne4 g2 Qc2 d1Q Nd4 d2 Qc4 Qfe1 Kd5 f1N Kc6 Ng3 Bf1 Ne2 Kb7 Be3 Ba4 g1B Nf6 Bb1 Rg2 Bf4 Rg7 Bge3 Re7 Bh6 Rf7 Nf4 Ne2 Nh5 Rd7 Ng7 Re7 Na7 c8B Ne8 Be6 Nc8 Rd7 Qg3 Rc7 Qde1 Rg7 d1N Bd2 Bf2 Bg5 Be3 Rf7 Nc3 Rg7 Bf5 Rd1 Bb1 Rdd7 Qd6 Rc7 Qf2 Rcd7 Qg1 Rc7 Nge7 Rd7 Rf8 h8N Rf7 Ng6 Ng8 Ne5 Qa1 Neg4 Na2 Bg2 Nc1 Bgc6 Qa2 Rc7 Rd7 Bcb5 Qb3 Ka8 Qc3 Ra7 Nc7+ Kb7 Qce5 Bc6 Qa5 Bcb5 Ne8+
Rbq1b3/p4rBK/1B1N3p/1qnQ4/r1N5/1k1N1N2/r1r5/2RbBQqq w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 fxe6 f5 e5 f6 e4 g4 Bg7 h4 Ba6 g5 Nh6 Bh3 Bf8 Bf5 gxf5 Bd2 Nc6 Bc1 Ne5 h5 Ng6 hxg6 Ng8 Kf2 Bb7 Ke1 Bc8 Kd2 e5 c4 d5 b4 Kd7 c5 Ke6 c6 f4 b5 f3 b6 d3 Ke3 d2 g7 a3 c7 h6 g6 a2 f7 f2 b7 f1Q b8B Nf6 g8Q Rh7 g7 Bd6 Ne2 Nd7 Qe1 d1R Ba3 Rd2 Bc1 Nc5 Ng1 Bd7 c8N Qb5 Qf1 Be8 Na3 Rf2 Rb1 a1R Rb4 Rfa2 Nc4 Qc7 Bd2 d4+ Ke2 Kd5 Nf3 d3+ Ke3 Ra4 Be1 d2 Rg1 Qcd7 Bc7 d1B Bb6 Bb8 N8d6 Qc8 Rb1 R1a2 Rc1 Bc6 Qd8 Be8 g8N Rg7 f8B Rf7 Bd2 Qcd7 Bg7 Qc8 Kf2 e3+ Kg3 e2 Kh4 e1Q+ Kh5 e4 Kg6 e3 Kh7 Qg3 Be1 e2 Qd7 Qh3 Qd8 Qh1 Ne7+ Ke6 Ng6 Kd5 Rg4 Qg1 Nge5 Qh1 Bc3 e1Q Nd3 Qg3 Bd2 Qgg1 Be1 Qca6 Rd4+ Kc6 Ne3 Bc7 Qh4 Rc8 Ne4 Bh2 Bc3 Nb3 Rd8 Rcc7 Rb8 Qc8 Ra8 Be5 Qg5 Bf4 Nf5 Kd5 Be1 Rcc2 Ned2 Bb8 Qh5 Nc5 Nd6+ Rf5 Nfe5 Kd4 Nec4+ Rf6 Qf7 Kc3 Nf3+ Kb3 Qd5 Rf7
1rr1Q3/pp1rn1NR/3b4/bQ2N1KN/b1Q1r1r1/8/R1B1B2b/N1k1r2n w - - 0 1 illegal: No proof kernel
k1rBn1q1/b1nRrr2/1Q6/Qq6/3npbp1/BNR1N1K1/1Nb1pN2/7Q w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Be2 g5 Bf3 gxf4 g5 Ba6 Be2 Bc8 Bg4 hxg4 Kf2 e5 c4 a5 b4 d5 h4 Kd7 b6 Kc6 c5 Kb7 h5 f3 b5 d3 h6 a4 h7 d4 g6 e3+ Kg3 e2 g7 d2 Nh3 a3 Nf2 d3 Rh3 a2 Qh1 d1Q Ba3 Qf1 Nd2 Ra7 c6+ Ka8 c7 Bc5 Nb3 d2 Rd1 Nf6 g8N a1B Ne7 Bf5 c8N Nc6 Nd5 Ne8 Nd6 Nd4 Ne3 Bc2 Ndc4 Re7 Nb2 Rf8 h8B e4 Re1 d1N Bf6 Nc3 Rd1 Nd5 Bh4 Ndc7 b7+ Ka7 Rd3 Qb1 Bf6 Rg8 Rc3 Kb8 Rh7 Ba7 Rg7 Re5 Rd7 Re7 Nfd3 f2 Bh4 f1R Nf2 Rf8 Bg5 Bc5 Bf6 Rc1 Bg5 Ka7 Bh4 Rff7 b6+ Ka6 b8Q Bd6+ Kg2 Bf4 b7 Kb6 Qc8 Ka7 Bg5 Nf6 Bh4 Qg8 Qd8 Nfe8 b8Q+ Ka6 Qb5+ Ka7 Qf5 Kb7 Qc8+ Ka7 Qa6+ Kb8 Qb6+ Ka8 Na5 Re5 Bd8 Ree7 Nbd1 Qb3 Nb2 Qb5 Nb3 Bd6 Qe6 Bc5 Qa5+ Ba7 Na4 Bb2 Kg3 Ba1 Qeb6 Bb2 Rc5 Bc3 Nb2 Bd2 Ned1 Bh6 Rc3 Bf4+ Kg2 Bb1 Ne3 Nce6 Rd3 Rc8 Rc3 Bd3 Rd5 Bc2 Rd7 Bh6 Kh2 N6c7 Kg3 Bf4+
N1br1B2/2B1bQqB/q6p/3r2Q1/3rb3/2K1p1Q1/qn1p2Q1/knR1N2R w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 Kf7 c4 Kf6 g4 Ke5 b6 d5 b7 d3 f4+ Kd4 c5 e5 f5 b3 g5 h6 g6 b2 g7 e3+ Ke1 e4 c6 h3 c7 h2 f6 e2 Kd2 Qe7 f7 Ra5 Bh3 Nd7 b8B Ne5 Nc3 b1Q Ra2 Nf6 g8Q Nfd7 Qg6 Nc4+ Ke1 d2+ Kf2 Nb2 Qb3 d1R Na4 Ne5 Nb6 Nec4 Qg5 Na3 Qbg3 e3+ Kf3 Kc3 Na8 e1Q Bf5 d4 Bh7 d3 Qg2 Bg7 f8Q Bf6 Qf7 Rd8 Bd2+ Kc2 Bb4+ Qe2+ Kf4 Rd2 Nf3 Rad5 Ne1+ Kc1 Q5g3 Qd7 Ke4 Be7 Qg5 Qa1 Q2g3 Kb1 Bc5 Qd6 Qg2 Qa6 Q2g3 Na4 Rc2 Qg7 Bb4 Nb2 Qg2 Bb7 c8Q Ka1 Qcg4 Bc8 Q4g3 Rd1 Bc7 Qd2 Rg1 h1B Bbd6 Qc1 Bb4 Qb1 Rf1 Qa2 Bbd6 Re5+ Kd4 Rd2 Kc3 Rd5+ Be5 Rd4 Bed6 Rd1 Qe2 Be4 Qeg2 d2 Rh1 Rb1 Nd3 Rf1 Ne1 Rf5 Bb4 Rfd5 Bc5 Bf6 Bf8 Be7 Rc1+ Nb1+
N2rb1n1/p1KBR3/Nr1N2Q1/R3b2q/1rp2k2/1B1n4/RQ1q3p/b1q4R w - - 0 1 legal: proof: e4 b5 a4 e5 h4 g5 b3 gxh4 Ba3 d6 Bc5 d5 c4 dxc4 f4 exf4 Be3 fxe3 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 h5 g4 c5 d4 f5 e5+ Ke6 b4 e2 d5+ Kd7 d6 Ke6 d7 e1Q g5 c3 g6 h3 g7 h4 b6 h2 b7 h3 b5 c2 b6 c1B+ Nd2 Qe8 d8R Nd7 b8N Ne7 g8B+ Qf7 b7 Bb2 Ra2 Rh4+ Qg4 Bg7 Ngf3 Ba1 Nc4 Qe2 Na6 Qd2+ Ne3 Bf6 b8Q Bb7 Ra5 Bc6 Qb2 Rb8 Be2 Rb6 Bb5 Rh8 Qg6 c4 Nh4 Nc5 Ba4 Bb5 Bb3 Be8 Bh7 Ng8 Rd4 Qc1 Rd2 Qd7 Nd5 Rb4 Nb6 Nd3+ Kf3 f4 Ke4 f3 Na8 f2 Nf5 f1Q Nd6 Qfd1 Rg2 Qh5 Rc2 Ke7 e6 Be5 Kd5 Rb6 Qd4 Rb4 Rca2 Qd8 Qb2 Qd7 Qg3 Kf6 Bf5 Rh6 Bg4 Kg5 e7 Rh8 Qgg2 Kf4 Qgc2 Qd8 Bd7 Rh6 Kc6 Rf6 Rd1 h1R Rg1 Rh2 Rh1 Rd2 Qcb1 h2 Q1c2 Bf7 e8R Rd1 Re6 Be8 Qg2 Rh6 Qg7 Qdg5 Kc7 Qg2 Re7 Qgd2 Kc8 Rf6 Qg6 Re6 Ne4 Rd6 Kc7 Rdb6+ Nd6 Qe3 Bc8 Nf2 Bh3 Rd3 Bf5 Qed2 Bg4 Bh8 Nc8 Rd8 Bd7 Be5+ Nd6 Nd3
rR3n2/1QN4n/Q5bp/2Nn1R2/8/N1pprb2/1q3Bb1/rBBkBbK1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 d3 exd3 h6 gxh6 Nc3 h5 Nb1 h4 c3 b5 Qf3 b3 Qg4 b2 Qf5 b4 Qe6 b3 Qe2 Bg7 Qd1 Bd4 Qf3 Bc5 Qd1 Bb4 cxb4 Ra3 Nc3 Ra6 Nb1 Ra8 a4 Kf7 g4 Kg6 f4 d5 Kf2 c5 b5 e5 g5 Kf5 g6 Ke4 g7 c4 f5 d4 a5 h3 a6 h2 b6 d2 a7 h6 f6 Nd7 b7 Nf8 b8B Qb6 f7 Ba6 Nf3 Nf6 g8N N6h7 Kg2 Ke3 Ne7 e4 Na3 b1B Bg3 b2 Bd3 c3 Rf1 h1B+ Kg1 Bg2 Bc2 Be2 Ne5 Bef3 Rf2 Ba2 Rb1 Bc4 Bh4 Bcf1 Nd7 Rg8 Bd3 Rg3 Nc5 Rh3 Qb3 Qb4 Ra1 b1B Qa2 Bc2 Rb1 Qb2 Bg3 B3e2 Rf5 Bef3 Be1 Rg3 Ba6 Bcd3 Bb5 Ke2 Nd5 d1N Nc7 e3 Ba4 Bde4 Bc2 d3 Qc4 Rh3 Qa6 Rg3 Rd5 Bg6 Rf5 Nf2 Qb7 Ne4 Qa6 Nef6 Qb7 Ne6 f8B Nd5 Bg7 Nef8 Bd4 Qa2 Rb4 Qb2 Bb1 Kd1 Qa6 e2 Bdf2 Rg4 Rb3 Re4 Rb8 Re3 Re8 Rd8 a8Q Rb8 Q8b7 Ra8 Bed2 e1R Rd8 Re4 Rb8 R1e3 Bde1 Ra4 Nab5 Ra2 Na3 Ra1
3n4/1p2nrNb/1RbR1p2/n3k3/K2rB1r1/3Bqb2/2QpbR2/3RQBN1 w - - 0 1 illegal: No possible last move
3R2BB/p2Q2n1/r6n/1bbQ3b/1k1p1n2/b1R1RrR1/2rqNQp1/N3K3 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 g4 h5 f4 hxg4 c3 dxc3 Qa4 exf4 Qb3 Bd6 Qd1 Bf8 e4 Ke7 h4 f5 b4 g5 e5 d5 b6 c2 b7 g3 e6 Kd6 b5 Kc5 h5 g2 b6 f3 e7 f4 e8Q f2+ Ke2 f3+ Kd2 g4 h6 g3 h7 Nc6 b8R Nce7 b7 Bg4 Rh2 Nf5 Ra6 Ng7 Rc6+ Kb4 Rh3 Bh5 Na3 Bc5 Qd7 Nh6 Ne2 g1N Bb2 g2 Rg3 Nh3 Rbc8 Rf8 h8Q Rf6 Re6 Nf4 Re3 Ra6 Qf8 Rb8 Rc6 Rc8 Qff5 Rc7 Qe1 c1B+ Kd1+ Ka4 Nc2 Kb5 Bf6 B1a3 b8R+ Kc4 Na1 Rc8 Rbb3 Rc7 Rbc3+ Kb4 Rd6 Rcc6 Ng1 Rc7 Bc4 f1B Ba2 Bb5 Ne2 f2 Kd2 f1R Qf2 d4 Bb3 Qh8 Bg8 Qh7 Qd5 Qe4 Qg1 Rf2 Ke1 Rf3 Qf2 Qd3 Rde6 Ne8 Bh8 Ng7 Re8 Bd6 Rc1 Rc2 Rf8 Bc5 Rd8 Rb2 Rc3 Rd2 Q7c6 Rc2 Qcd7 Qd2#
N4N2/nB2rpBq/B1rQnB2/Kq4p1/b1kb3n/R5pn/1R2N1Q1/4n3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 h4 Kc5 c4 g5 b6 d5 b7 a5 h5 a4 e5 a3 b3 f3 h6 a2 e6 g3 h7 f2 e7 d3 Kc3 d2 e8Q Nh6 Rh2 Ra7 Qee2 Nf5 Na3 Nd4 Nb5 Bg7 Bb2 Nbc6 b8N Bd7 Nc7 Qg8 Na8 Bf6 Bg2 f1N Qe4 Be5 Ne2 Ne3 Qec2 Nef5 b4+ Kd6 b5 Kc5 b6 Ne6+ Kb3 d4 b7 d3 Bf1 Bg7 Bf6 Nh4 Rg2 Ra6 Rf2 Rb6+ Ka4 Na7+ Ka5 Ba4 Rh2 Rc6 Nd7+ Kd6 c5+ Kd5 Qb2 Kc4 b8R Nd4 Nf8 Ne6 Bc3 Bd4 Rb5 Qg7 Bg2 Rg8 h8B Qh7 Bf6 Rg6 Qh1 d1N Qa3 d2 Bg7 Rc7 c6 Nf2 Qd6 Re7 c7 d1Q c8B Nh3 Ba6 Qb3 Bgb7 Rh6 Qg2 Rf6 Rd1 a1N Rd3 Nc2 Re3 Ne1 Bb2 Qbc2 Ra3 Qb3 Bc3 Rf5 Ba1 Rc5 Bc3 Rc6 Bb2 Bc5 Bbf6 Bd4 Rh1 Nd3 Rb1 Ne1 Rb2 Qxb5+
2RNr3/1Q1q2bQ/1R1R2bK/Qr4n1/1b1rpp1b/Q3pn2/1B3k2/3q1N1B w - - 0 1 legal: proof: d4 h5 a4 c5 g4 cxd4 e4 dxe3 f3 b5 axb5 hxg4 Bh3 gxf3 Bg2 Na6 Bf1 Nb8 c4 g5 b4 f5 h4 Kf7 b6 Ke6 b5 Ke5 c5 Ke4 c6 e5 b7 d5 h5 a5 b6 a4 c7 g4 h6 g3 h7 d4 Qd2 g2 Be2 d3 Rh4+ f4 Ra3 Bb4 Rh6 Qd7 Bb2 Nf6 Nh3 g1B Rb3 Rd8 h8Q Nh7 Rd6 Nc6 b8Q a3 b7 a2 Qa7 a1B b8Q Ng5 Qbb7 f2+ Kd1 Rb8 Qa3 f1R+ Qe1 d2 Qh7+ Qf5 Bb5 Bf2 Ke2 Bh4 Ba4 Bd7 c8R Be8 Bb5 Bg6 Ba6 Bc5 Rb6 Re8 Bc4 Qd7 Bd5+ Kf5 Kd3 d1Q+ Nd2 Nd4 Bc6 Bb4 Bh1 Ngf3 Ng5 Ne6 Nf7 Neg5 Nd8 Kg4+ Kc4 Rf2 Nf1 e4 Qec3 Rh2 Qa5 Rd2 Qca3 Nd4 Kd5 Rd3 Nd2 Kg3 Nf1+ Kf2 Qe7 Ke2 Ke5 Ndf3+ Kf6 Rd4 Kg7 Kf2 Kh6 Ra8 Q5a4 Ra5 Qh7 Rb5 Qa5 Rdd5 Bc1 Bf6 Bb2 Rd4 Rc5 Be5 Rc8 Bg7+
2rr1q1Q/b1R1b3/1qq2BrB/1Np4k/4p3/1QBN3p/Q4B1R/nr2nK2 w - - 0 1 legal: proof: e4 d5 h4 a5 b4 axb4 c4 dxc4 Ke2 g5 Ke1 gxh4 d4 f5 d5 Bg7 d6 Be6 Bd3 Bd5 exd5 Bf8 Be4 fxe4 g4 Kf7 a4 Kg6 f4 h5 a5 e5 d7 b5 d6 e3 g5 b3 a6 e2 a7 b4 Nc3 b2 Ra3 b1Q Bb2 h3 Qc1 b3 Kf2 e1B+ Ke2 e4 Ba1 b2 Qd1 h2 Kf1 h4 Ra4 h3 Nge2 Na6 f5+ Kh5 f6 Nc5 f7 Be7 f8B Nh6 g6 Nb3 g7 Ng4 g8Q Rc8 a8Q Bf2 Ra7 Ne5 Bh6 Nf3 Nb5 c3 Nc1 c2 Nd3 Qf8 d8B c1Q d7 Qc6 Rb7 Bb6 Qa2 Ba7 Qg7 Rg8 Qf6 Rg6 Qh8 Qbc2 Qdb1 Qb6 Qd1 b1R Bc3 c5 Bc7 Qd2 d8B Na1 Bg3 Qc2 Rc7 Qa4 Bf2 Qaa6 Qc1 Ne1 Qca3 Qc6 Q3b3 Qab6 Rg1 Rd1 Rg2 h1R+ Ke2 Bd6 Bdf6 Be7 Rh2 Rb1 B6d4 Rhg1 Bf6 R1g5 Kf1 Rd5 Ba5 Rd4 Bc3 Rdd8
1nN5/n3q1N1/1QR2p1k/NR1p1q1b/2QbQ3/1rnr1N2/B3p1n1/4K1Br w - - 0 1 legal: proof: d4 g5 f4 b5 h4 gxh4 e4 b4 d5 b3 d6 cxd6 e5 dxe5 Kd2 exf4 axb3 f3 b4 f2 b5 Bb7 Kd3 Ba6 Kd2 Bc8 c4 e5 b4 a5 g4 d5 b6 h5 b7 a4 c5 e4 b5 h3 g5 h2 c6 a3 c7 f6 b6 Kf7 g6+ Kg7 Qa4 h4 Qd4 e3+ Kd1 a2 Ke2 h3 Na3 Kh6 g7 Bc5 Rb1 a1Q Nf3 Ne7 Qc4 Bg4 c8N Bh5 Rb5 Qb1 g8Q Rh7 Qgg4 Nec6 Nc2 Qe7 Qge4 Ra3 Nd4 Rd3 Ne6 Bd4 Ng7 Na7 Ba3 Rh8 Bc5 Rf8 Rg1 h1N Rg4 h2 Rg3 Nbc6 b8Q Re8 Qc7 Nb8 b7 Rf8 Qb6 Rf7 Bh3 f1N Bf5 Nf2 Bh7 Nd1 Ke1 h1R Rg2 Qe6 Rc2 e2 Rc1 Nc3 Bg6 Nbc6 b8N Rb7 Bh7 Qe7 Bf5 Ne5 Nc6 Nd7 Na5 Nb8 Bg6 Be5 Bg1 Bd4 Rc5 Ne3 Rc6 Qbb4 Rb1 Qbd6 Rb5 Qde6 Qe5 Q6d7 Be4 Qf5 Qe6 Rd2 Bb1 Rd3 Qe4 Nd7 Ba2 Nb8 Qa6 Rb6 Rbc5 Rb4 Qb6 Rb3 Rb5 Ng2#
3b3Q/3q1ppR/r1Q4B/k1N2Npq/r1R2qR1/2R1q3/1bK1nBnn/7Q w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 d5 g4 dxc4 h4 a5 h5 axb4 h6 Ne7 Bg2 Ng8 Be4 Bf5 Bd3 Bg6 Bc2 Bh5 Bg6 hxg6 gxh5 Kd7 Kf2 Ke7 Ke1 Ke8 a4 Kd7 d4 Kc6 Kd2 Kb6 e4 c5 d5 f3 d6 c3+ Kd3 c2 h7 c4+ Kd2 f2 d7 f1N+ Ke1 c3 e5 b3 e6 b2 e7 Ra6 e8Q Ne3 h6 Nf6 Ra3 Be7 Rh4 Nc6 Rg4 Ka5 Ne2 b5 Ng3 b4 Nd2 b1Q Nde4 b3 Nc5 b2 Nf5 Nd4 Bd2 Qc7 d8B c1Q Qc6 Qe4 Rb3 Rg8 h8R b1Q h7 Qf4 Rb4 c2 Rc4+ Qb4 Rc3 Qca3 Qdf3 c1B Qh1 Ng2+ Kd1 Ne2 Kc2 Qf3 Bh6 Qbf4 Rc4 g5 Rc3 Kb4 a5 Qd7 Bb6 Rga8 Rc8 Bb2 h8R Qh3 Rh7 Bd8 Ba7 Qh5 Rc7 Rb6 a6 Ka5 Rc4 Qae3 Rc3 Rb3 Rc8 Ra3 Bb6+ Kb4 a7 Ra6 Rc7 Ne4 Rc8 N4g3 Rc7 Nf1 Rc8 Rb8 a8Q Nh2 Rc7 Rb7 Ba7 Ka5 Rc4 Be7 Qh8 Rb4 Rb7 Qd8 Ne6 Qeg3 Bf2 Qd7 Nc5 Ra4 Rb3 Qge3 Rbc3 Bd8
n3B3/KBpB3n/5p2/nNb1b1RN/4N3/3QrNRb/1k1p1q2/n2q1rQ1 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 exf4 h4 gxh4 d3 d5 Bd2 dxc4 Kf2 c3 Ra6 cxd2 Ra4 Ke7 Ra1 Ke8 b4 Kd7 g4 Ke6 e4 Ke5 d4+ Kf6 b6 a5 b7 h5 b5 f3 Ke3 f2 b6 a4 d5 Ke5 d6 h3 g5 h4 g6 h2 d7 a3 g7 h3 Nc3 a2 Ba6 f1N+ Kd3 Nc6 Kc4 Qh4 Kb5 Kd4 b8N Bc5 b7 Qf2 e5 Na5 e6 Ne3 d8Q+ Nd5 e7 Nf6 e8B Rf8 g8B Nh7 Nd7 Nb6 b8N Ra7 Qf1 Na8 Bb7 Ra6 Qc1 Re6 Na6 Re3 Nf3+ Kd3 Rb1 a1B Rg1 h1Q Rg3 h2 Qg1 Kc2 Nf6 Bh3 Nh5 Bb2 Qd3+ Kb3 Qg2 Qd1 Qg1 h1N Rg5 Ng3 Rc1 Bb6 Nc5+ Ka3 Ka6 Nf1 N5e4 Bc5 Nb5+ Ka2 Ne1 Be5 Rc3 Kb2 Ra3 f6 Bd7 Re8 Bf7 Rf3 Bg6 Ne3 Bf7 Re7 Bfe8 Nc2 Rc3 Re3 Nf3 Na1 Ra3 Re1 Rc3 Rf1 Ra3 Nb6 Ka7 Na8+ Kb8 Re6 Nh4 Kc1 Neg3 Bc3 Qf5 Nb6 Ka7 Kb2 Qd5 Re3 Ne4 Ree1 Qc4 Be5 Rag3 Re2 Qd3 Re3 Nf3 Na8+
N2nbrRK/Bqp4Q/k1p3Q1/5NR1/B4br1/3q2nq/NB1B2pq/7b w - - 0 1 legal: proof: g4 b5 c4 h5 a4 hxg4 f4 e5 c5 exf4 c6 dxc6 axb5 a5 b4 axb4 Kf2 Kd7 e4 f5 h4 g5 d4 b3 d5 g3+ Kf3 g2 b6 b2 h5 Bc5 b7 Qf8 e5 Ra5 h6 Ra4 d6 Ba3 h7 Ne7 Nd2 b1B Ne2 g1Q Rh5 Na6 b8B Nc5 Nc4 Qh2 Bb2 Ne6 Nc3 Nd8 Qd3 Qe8 Ba7 Rf8 h8N Bc5 Nf7 Be3 Nh6 Ba2 Na5 Bd5+ Qe4 Qg6 Bb5 Bd2 Rg1 Rc4 Rg2 g4+ Kf2 f3 Rg5 f4 Na2 Rd4 Nc4 Nf5 Ba4 Ng3 Nf5 Qgh6 Qb1 Q6h3 Qc2 Bb7 e6+ Kc8 e7 Ba6 e8Q Kb7 Ne5 Bd3 d7 Ka6 Nc4 Bf7 Qe7 Be8 Qh7 Be4 Nb6 Rb4 Na8 Be3+ Ke1 f2+ Kd1 f3 Rg8 Nf7 d8B Bf4 Bg5 Nd8 Qb1 Bd5 Kc2 f1Q Kc3 f2 Qe4 Qd1 Qe6 f1Q Qeg6 Qb5 Bh6 Bd6 Bd2 Qb7 Rg1 Bh1 Rg2 Rb6 Kd4 Bf4 Rg1 Bg5 Ke5 Rb4 Rg2 Qc2 Rg1 Qd3 Rg2 Bf7 Rg1 Bf4+ Kf6 Be8+ Kg7 Ne4 Bdc1 g3 Bd2 Rc4 Kh8 g2 Re1 Ng3 Re4 Be3 Rg4 Rb4 Rg5 Rg4 Ba1 Bf4 Bac3 Bf7 Bb2 Be8
2r2nN1/n3r3/2Q1N3/qB5N/2K1R1r1/p4qpk/QQ1rRb1p/1q1Q2rB w - - 0 1 legal: proof: d4 b5 g4 c5 a4 cxd4 g5 bxa4 g6 e5 Bh3 e4 Na3 e3 Bf1 fxg6 Nb1 g5 Qd3 g4 Qd2 Qf6 Qd1 Qd8 Bd2 Bb4 Ra3 Be7 Ra1 Bf8 Bh3 exd2+ Kf1 Ne7 Kg2 Na6 Kg3 Nb8 Bf1 Ng8 Kg2 Bb4 Nh3 Be7 Ng1 Bf8 h3 Ke7 Kh2 Kf7 Kg2 Ke8 Kg3 g6 Kf4 g5+ Ke4 g3 Kd3 g2 Ra2 g4 Kc4 g3 Kd3 Bb7 Ra3 Bf3 Ra1 Bg4 hxg4 Qe7 Rh2 Qh4 Rh1 Qd8 b4 Ke7 c4 Kf6 f4 a5 e4 d5 f5 Kg5 c5 h5 e5 h4 c6 h3 b5 Kh4 g5 h2 e6 a3 e7 a4 e8B a2 f6 a3 g6 Nd7 b6 Rb8 b7 Bg7 f7 Qa5 f8N Ne7 c7 Rg8 c8Q Nc6 Nc3 Na7 Nge2 g1R Ne6 Nf8 Qc6 Rc8 b8Q Bh8 Rb1 a1Q Rb2 Qb1+ Rc2 Rg7 Qb2 Re7 Bg2 Bg7 Bf3 Kh3 Ne4 Bh6 g7 Be3 g8Q Bf2 Qdc1 d1Q+ Qd2 Rg7 Nf6 Rg4 Qf7 Qf1 Qd1 Qg2 Ng8 Re1 Nc1 Re5 Re1 Re2 Ng7 Re7 Re4 Qh1 Ne2 Qf1 Bh1 Qg2 Qcc3 Qf3+ Kd2 d3 Bb5 d4 Qfa2 Bg1 Ne6 Be3+ Ke1 Bf2+ Kf1 d2 Qc6 d3 N2f4+ Kh4 Nh5 Kh3 Qe1 d1R Rce2 Rc1 Qd1 d2 Re1 Qf5 Ke2 Rc2 Kd3 Qf3+ R1e3 Rc1+ Kd4 Rc2 Kd5 Rc1 Re2 Rc2 Qdc1 d1R+ Qd2 Re1 Qd1 Rd2+ Kc4 Rg1
1n4N1/1b3p2/1b3r2/B1kq1Q2/1p1R2qr/1r2B1N1/2KrpB2/qB1N1rQR w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 f3 gxf3 e3 d5 Bb2 d3 Bc1 d4 e4 Nd7 Bh3 Ndf6 Bf1 Nd5 exd5 Ra7 Kf2 Ra6 Ke1 Ra8 Kd2 Kd7 a4 Kd6 c4 b5 h4 g5 h5 e5 h6 e4 a5 e3+ Ke1 b3 h7 b4 a6 b2 a7 g4 Ne2 g3 Nbc3 g2 Ng3 Kc5 d6 g1Q d7 b1R Ra6 Bg7 Rd6 Bb7 Bd2 Rc8 a8Q Rc6 Qc8 Ne7 Bc1 Qg8 d8B Rb3 Ba5 e2 Kd2 f2 Bg2 f1R Be4 Be5 Qf5 Qg4 Qe1 Rb6 Nd1 Nc6 Qef2 Qg2 Qg1 Nb8 Rd8 Rf6 Rd7 Rd8 h8B Q2f3 Bg7 Rh8 Bh6 Rh7 Be3 Rh4 Bb2 Qg2 Kc1 d2+ Kc2 Q2f3 Bf2 Qg2 Bc1 Q2f3 Bd3 Qd5 Rd8 Bc7 Rd7 Kc6 c5 Bb6 Be4 Kb5 c6 Kc4 c7 Kc5 Ne3 d1R c8N Rdd3 Nd1 Rf3 Bf4 Rfe3 Ne7 d3+ Kc1 d2+ Kc2 Qe5 Rd4 Qd5 Ng8 Rf3 B4e3 Rd3 Nc3 d1Q+ Kb2 Qa4 Nd1 Rb3+ Kc1 Qa1+ Bb1 Rd3 Kc2 Rb3 Bd2 Rfd3 Bde3 Rd2+
3RNq2/2R1b3/4Qpq1/nK1pBN2/1r6/Bpbb3B/QQBk1n2/1n2nq2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Nd2 Ra7 Nb1 Rb7 Ra3 axb4 Ra1 b3 Ra3 b4 Ra1 Rb5 axb5 Rh7 Be3 Rh5 Bc1 Rh8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 g5 h4 f3 h5 b2 h6 f2 b6 d5+ Kb5 g3 c4 g2 c5 d3 h7 Kd4 c6 g4 b7 b3 e5 d2 e6 Ke3 e7 g3 e8B f6 c7 Na6 b8B Ne7 Qc2 Nb4 Ne2 g1B Na3 b1N Qa2 g2 Bg6 Nc2 Ng3 Bf5 c8Q Nc6 Be5 Na5 Qe6 Ne1 Rh6 Rg8 h8Q Be7 Rh7 Qf8 Qb2 Bd3+ Nc4+ Kf3 Ra3 d1N Nf5 Bh2 Ra4 g1Q Bh3 f1Q Qa2 Nf2 Ba3 Bg3 Qg7 Rh8 Qh6 Bh2 Qhd2 Qg3 Rf7 Rh4 Qdb2 Rd4 Bh7 Qg6 Rg7 Bf4 Rg8 Bd2 Rh8 Qfh6 Rd8 Ke2 Rb4 Qf8 Ra4 Nc6 Ra7 Na5 Rc7 Rg4 Kb6 Rd4 Ncd6 Rc4 Ne8 Kd1 Kb5 Bc3 Nh6 Qg4 Be4 Qg6 Bef5 Be2 Bc2+ Kd2 Nf5 Bd3 Qg8 Qg5 Qf7 Qg6 Qe6 Rb4+
q4R2/rQb3p1/2nk2pn/Q2nb1n1/QqR2R2/2B2NR1/1p1N2q1/B4bK1 w - - 0 1 legal: proof: d4 b5 g4 a5 f4 c6 e4 f5 b4 axb4 g5 c5 Be2 fxe4 f5 Ra6 Bf3 Rf6 Bh5+ Rf7 Bg6 cxd4 Kd2 hxg6 Ke1 Rf6 gxf6 Rh7 Bb2 Rh3 Bc1 Rh8 Kf2 d5 a4 Kd7 c4 e5 h4 d3 h5 b3 h6 b2 c5 b4 c6+ Kd6 c7 e3+ Kf1 d2 h7 d4 a5 d3 f7 b3 f6 e4 a6 e2+ Kf2 e1N a7 e3+ Kf1 e2+ Kf2 Nf3 a8R Nc6 R8a4 Ba6 c8Q Nh6 Rf4 Ng5 Nf3 e1B+ Kg1 Bg3 Qb7 Qa8 Raa4 Bc4 Qc2 d1N Nbd2 b1Q Bb2 Nc3+ Qd1 Qc2 Rh3 Nd5 Ba1 b2 Rb4 Be7 f8R Bd8 f7 Bc7 Ra4 Rg8 h8Q Bb5 Rfc4 Be5 Rg3 Ba6 Rf4 Qb3 Rad4 Qb4 Qa4 Bb5 Rc4 Ba6 Nf1 d2 Qa5 d1Q Qh7 Qe2 N1d2 Nf5 Qh4 Qe4 Re8 Nh6 f8B+ Kd7 Bd6 Rf8 Bc5 Rf7 Bd4 Kd6 Rf8 Re7 Bc3 Rd7 Rc5 Bf1 Rc4 Bd8 Qba6 Ra7 Qg4 Bc7 Qgc8 Qa4 Qcb7 Qb4 Q6b5 Qe2 Qba4 Qg2+
n1rR4/k2qp1R1/4K1NR/n2p4/2pb4/2nbBR1B/3q1nNq/1QQ3Bb w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 d4 gxh4 c3 bxc3 Be3 c5 Be2 b5 Bf1 c4 Bc1 Ra7 Qd2 Rc7 Qd1 Rc5 dxc5 Bb7 Qd2 Ba6 Qd1 Bc8 Ke2 d5 Ke3 Kd7 Kd4 Kc6 Ke5 Kb7 f4 h5 g4 h3 a4 h4 f5 b4 c6+ Kb6 c7 c2 g5 b3 a5+ Ka7 g6 b2 f6 h2 g7 e3 f7 h3 a6 e2 Na3 e1Q+ Ne2 b1N Be3+ Ka8 a7 c1Q Nc2 Qa3 Nf4 Qd2 Bg1 Qd7 Ne3 Nf6 g8R Bg7 f8B Qaa2 Neg2 Nc3 Qc1 Qab2 Ra6 Ne8+ Rf6 Kb7 a8R Qa2 Ne6 Nc6+ Kf5 Na5 Rf7 Bh6 Rgg7 Be3 Ke5 Qab2 Rf3 Rg8 Rb8+ Ka7 Nef4 Qbc2 Bd3 Bc5 Bf5 Bf2 Be6 Qh7 Ng6 Bd4+ Kf5 Qh4 Rh7 Qhf2 Bh6 Qg3 Bhe3 Qgd6 Bgf2 Rh8 Rg1 h1B Rh5 h2 Rh6 Bb7 c8Q Nc7 Qe8 Na8 Rd8 Bc6 Qg8 Ba4 Qg7 Bd1 Qe5 Qb8 Qe4 Be2 Qeb1 Qbd6 Rf1 Qb8 Bg1 Qbb2 Rg3 Qa2 Rff3 Bd3+ Kf4 Qab2 Bh3 Qb8+ Ne5 Re8 Rc8 Rg8 Rg7 Rh8 Nh4 Bg2 Kg5 h1N Neg6 Nf2 Rcf8 Bh1 Ng2 Qh2 Rb8 Bf1 Rc8 Qd8 Kf5 Bd3+ Ke6 Qdc7 Rd8 Re8 Rd6 Rc8 Rd8 Qd7+
4q2B/bnNp1R2/2k5/Q1N1qpb1/K4bbR/QQp3Q1/5Bn1/1n2r1qB w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 d4 hxg4 c3 bxc3 Nf3 c5 Kf2 b5 Ke1 c4 Ng1 Ra6 Ba3 Rc6 Bc1 Rc5 dxc5 Qa5 Bb2 Qc7 Bc1 Qd8 a4 g5 h4 g3 e4 c2 Kd2 f6 Kc3 g2 Kb4 c3 h5 f3 e5 g4 a5 g3 h6 f2 h7 Nh6 e6 Ba6 e7 Ng4 c6 Bh6 c7 Bf4 c8Q Ne3 Ne2 g1B Nd2 g2 Qc5 Nc6+ Ka3 b4+ Ka4 b3 Qa3 b2 Nb3 b1N Rh4 Rf8 Ned4 Be2 h8B Bg4 a6 Na5 a7 Nb7 a8Q f5 Nb5 Rf6 Nc5 Re6 Qa5 Qc7 Bd3 f1Q Be4 Qe5 Nc7+ Kf7 Bd2 c1B Be1 Qe2 Qdb3 Bf2 Ra2 g1Q Bh1 Ng2 Rc2 Bd4 Bf2 Bg5 Ra2 Bcf4 Rd2 Bde3 Rd6 Qee1 Ne4 Ba7 Nc5 Qg7 e8Q+ Kf6 Qc4 Ke5 Qcb3 Re7 Rdh6 Re6 Qg8 Kd6 Rf6 Kc6 Rf7 Qee5 Rh6 Qf8 Rh4 Qe8 Qg6 Qd5 Qg7 Re1 Qe5 Qde6 Qe3 Qd5 Qg3 Qde5
b4n2/n2B1QR1/2N2bQ1/q1p2K1N/knp5/3rbpb1/Bb1R1nN1/N4B2 w - - 0 1 legal: proof: f4 a5 c4 d5 g4 h5 e4 hxg4 d4 e5 f5 Ra6 Be3 dxc4 d5 Re6 Bd4 exd4 fxe6 b5 a4 bxa4 e5 Rh3 Nc3 Rh4 Nb1 Rh8 Kd2 g5 b4 c5 h4 f5 d6 d3 Ke3 f4+ Ke4 f3 b5 a3 e7 Kd7 h5 g3 h6 g4 b6 Kc6 e8B+ Nd7 e6 Kb5 h7 d2 e7 a2 b7 g2 b8Q+ Bb7+ Kf5 g3 Rh4 a4 Rd4 a3 Qc7 Bg7 Nh3 g1B Qc2 d1N Nd2 g2 Nf4 Be3 Bg6 g1B e8B Bgf2 Nh5 Ba8 Nb3 Ka4 Rd2 Bg3 Rc1 Bb2 Na1+ Kb4 Qe4 Nf8 Qf7 Nf2 d7 Qa5 d8N Bf6 Nc6+ Ka4 Bd7 Bb2 Nb3 a1N Qb1 Nc2 Na1 a2 Re1 Bg5 Re7 Nb4 Qd3 Be3 Qe4 Nf6 Qd3 Rg8 h8N Ne8 Bh7 Rg4 Ng6 Nc7 Nh4 Nb5 Ng2 Na7 Qd6 Re4 Qdg6 Bf6 Qe8 Rd4 Rg7 Rd3 Qef7 Bb2 Qge6 Ba3 Kf6 Rd5 Bb1 Rd3 Kf5 Bb2 Qeg6 Bf6 Nc2 a1B Ba2 Bad4 Na1 Bb2
Q3R2Q/5r1K/p1r1rR2/pnr1n1NB/N1Bp4/Bqb1n3/B7/1Rn1k2r w - - 0 1 legal: proof: d4 e5 a4 c5 f4 exf4 a5 cxd4 Nh3 b6 Ng1 bxa5 g3 fxg3 h3 g2 Bh6 g6 Bc1 g5 Nf3 g4 Bd2 g3 Ng1 Bb7 Bh6 Bf3 Bc1 Bg4 hxg4 Be7 Rh3 Bc5 Rh1 Bf8 Kd2 d3 Ke3 Ke7 Ke4 Ke6 c4 f5+ Kf4 d5 e4 h5 b4 d2 e5 a6 c5 d4 g5 Kd5 e6 h4 g6 h3 b5 h2 b6 Rh5 e7 Nc6 e8B Nge7 b7 Qb6 b8Q Na7 g7 Nec6 g8R Qb3 Bb2 Nb5 Qe2 d1N Nh3 g1N Ng5 g2 Qb7 Rc8 Ne6 Rh6 Kg5 f4 Qg4 Ke4 Qa8 Ke3 Nc3 Kd2 Ba3 f3 Bc4 f2 Na4 f1R Qh4 Ne2 Rb1 Nc1 Rg1 Rf7 Rf1 h1R Qh2 Rh5+ Kg6 Rhf5 Qhb8 g1R+ Ng5 Bd6 Rf3 Re1 Rf8 Rd5 Rf6 Re6 Rg8 Be7 Qh2+ Ke1 Qh8 Rc7 Rf8 Ne3 Rg8 Rf8 Kg7 Ne5 Bh5 Re8 Kh7 Rcc6 Rgf8 Qb4 Ba2 Qb3 Rg8 Rb6 c6 Bb4 c7 Bc3 Rgf8 Rbc6 c8B Red6 Rg8 Rdc5 Be6 Rdd8 Bc4 Ree6 Re8 Rdc8 Re7 Rf8 Re8 Rf7+
2b3bn/b2Qb1Np/q1b1RB2/N3b1N1/RQ2r2p/K1q5/2N1Rp2/2r3kB w - - 0 1 legal: proof: h4 e5 f4 c5 b4 g5 d4 cxd4 b5 gxh4 b6 axb6 e3 b5 Qe2 b4 Qd1 Nc6 Bb5 e4 Bf1 Ne5 fxe5 dxe3 c4 Ke7 a4 Ke6 g4 f5 g5 d5 c5 b5 g6 b3 g7 e2 Kd2 e1B+ Ke2 e3 Kd3 b4 a5 b2 Kc2 f4 Kb3 Kf5 c6 Ke4 e6 f3 e7 d4 e8R+ Be7 a6 e2 a7 d3 c7 d2 Qc2+ Ke3 Ka4 Kf2 Qe4 d1Q+ Qc2 b3 Qe4 Q8d2 Bg2 Nh6 g8N Qc3 Qb4 Qd6 Ka3 Nf7 Nf6 Rf8 Bd2 Nh8 Nh5 Rf4 Rh2 Re4 Bh1+ Kf1 Ng7 Bf2 Bg5 e1B Nh3 Qdd3 Nf4 Kg1 Nfe6 Rb8 a8N Ba7 Rd2 Bg3 Bf6 f2 Nb6 Be5 Re2 Qb5 Nc4 Qa6+ Na5 Rb5 Nf5 Rc5 Nfg7 Rc6 Ng5 Rcc4 Nd2+ b1B Nf1 Rc6 Ne3 b2+ Ka4 Rc5 Ra2 Bd3 Nc2 b1B Ra3 Bc4 Ra1 Bg4 c8Q Bg8 Qc7 Bc8 Qd7 Bd8 Re6 Be7 Ne1 Bd3 Raa2 Bc4 Nc2 Bd5 Ra3 Qcc4 Ra2 Bc6+ Ka3 Qd4 Kb3 Rc4 Ra4 Qd2 Ka3 Rc5 Ne3 Rc1 Nc2 Qc3+
Kq4k1/p2p1q2/3Qq1qR/2R1p3/3n1r1q/B1nNB3/1qQb1N1N/1Q1r2N1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 f4 hxg4 e4 b5 f5 bxa4 Bc4 Ba6 Ba2 Bd3 Be6 fxe6 f6 e5 Nd2 Bc4 Nb1 Be6 Nd2 Bf5 exf5 e4 Nb1 Rh4 Ra2 Rh5 Ra1 Rh8 Ke2 Kf7 h4 e5 b4 g5 c4 g3 c5 a3 h5 g4 b5 e3 Kd3 g2 Kc4 g3 b6 a2 Kb5 d3 c6 d2 b7 e2 c7 e1Q c8N Be7 h6 Kf8 f7 Qe8 h7 Kg7 f8B+ Kf7 f6 Bb4 Rh6 Ne7 Qc2 d1Q Nd2 Qh5 Nf1 Nd5 Be3 Nc6 Ka6 Nd4 b8Q Qe6+ Kb7 Bd2 Nh2 Nc3 Rc1 a1Q Ba3 Qaa2 Qd6 Qb2+ Qb6 Rf8 h8N+ Kg8 Nd6 Qhf7 Ng6 Rac8 Nf4 Rc5 Qb5 Rd5 Ne4 Qf2 Nd3 Qf4 Nd6 Qh4 Ne4 Rd6 Nef2 Rd5 Ne2 g1Q Qbb3 Qd1 Ng1 g2 Qb5 Qdg4 Qb6 Qgg6 Qbb3 Rc8 Qb1 Rc4 Ka8 Ndb5 Q3c2 Rf4 Ne4 Nd4 Nef2 Qfh7 Ne2 g1Q f7+ Kh8 f8Q+ Qgg8 Nb4 Qgg6 Ng1 Qgf7 Qb8 Qge8 Nbd3 Kg8 Qa4 Qhg6 Qc6 Nd1 Rc5 Nc3 Qbc8 Qed8 Qd6 Bc1 Qcb8 Nde2 Ne1 Rd1 Qdd3 Bd2 Qdc2 Nd4 Ned3 Kg7 Qcc1 Qdb6 Qd6 Kg8 Qcc2 Qb8+
b1Q1b2R/2b2N2/1qR2R2/pqp2QBK/R5Np/3rBn2/1qqN2k1/rb6 w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 gxf4 a4 e5 g5 b5 Bh3 bxa4 Bg2 Nc6 Bh3 Nce7 h5 Ng6 Bg4 e4 Bf3 exf3 hxg6 Kd7 Nc3 Ke7 Nb1 Ke8 Kf2 Ke7 b4 Kd6 d4 Kd5 b5 Ke4 g7 f5 b6 c5 d5 h5 b7 h4 b8R a3 e3 c3 d6 a2 g6 c2 d7 Ne7 g8R Qb6 d8B Bd7 g7 Be8 Qd7 Ng6 Nh3 Ne5 Qe6 Bd6 Be7 Bc7 Bd2 c1Q Rc8 Qc2 Bg5 Rh6 Qf7 Rd6 Rf1 Rd3 Rh8 a6 g8N Ra7 Kg1 f2+ Kg2 Nf3 Nh6 Ra8 Ng4 Ra7 Rd1 f1B+ Kf2 Bg2 Rf1 Ne5 Qf6 f3 Qe6 f4 Qf5+ Kd5 e4+ Kd4 Kg1 f2+ Kh2 f3 Bdf4 Ra8 Nd2 Ra7 Be7 Bh1 Ng5 Ra8 Kh3 Ra7 Rac1 a1Q Nf7 Qab2 Ra1 Ra8 Beg5 Ra7 Rg1 f1B+ Rg2 f2+ Be3+ Kc3 Ra5 Nf3 e5 Be2 e6 f1Q e7 Qfb1 Bef4 Kd4 Rf2 Q2b5 Rf1 Q1b2 Ra3 Re3 Ra2 Bd3 Rf2 Be4 Rf1 Rb3 Be3+ Kd3 Ra4 Ke2 Rd1 Rd3 Rf1 Bd6 Rc6 Bc7 Nf2 Bg2+ Kg4 Ra8 Kh5 Ra7 Rfa1 Ra8 Ng4 Ra7 Nb1 Kf1 R1a2 Bh1 Nd2+ Kg2 R2a3 a5 Rb3 Rb7 Rbb4 Rb8 Rd4 Rd8 Rdd6 Ra3 Rdh6 Rdd3 Rhf6 Ra1 Rce6 B8c6 e8Q Bd7 Qc8 Be8 Qd7 Bd5 Rc6 Ba2 Qd8 Bb1 Qdc8 Ng1 Rg6 Kg3 Rcd6 Ba8 Rgf6 Nf3 Rc6 Kg2
3BQQK1/2q2Np1/krq2n2/B1r2npq/2b2Q1R/p1R4B/3q1r2/1N1r1B2 w - - 0 1 legal: proof: f4 c5 g4 b5 d4 cxd4 b4 e5 a4 exf4 g5 bxa4 b5 h6 c3 Bb4 cxb4 hxg5 Kd2 d5 Kd3 Kd7 e4 Kc7 h4 Kb7 b6 a5 b5 f5 h5 f3 e5 a3 e6 f4 e7 f2 e8B a4 h6 a2 h7 f3 Ba3 Ra6 Qd2 Nh6 Nc3 Nf5 Rh4 Nd7 Nb1 Qc7 Qf4 Nf6 Be7 a3 Bd8 Be6 Bd7 Re8 h8Q Bf7 Nc3 Re5 Rc1 a1Q Nb1 Qb2 Rc3 Qc6 Qe8 Bg8 Be2 f1R Qf8 f2 Nf3 Qb4 Qe8 Qe7 Be6 Re1 Bf1 Qec7 Bd7 Rc1 Qf8 Re2 Ne5 Ree1 Nf7 Red1+ Ke2 d3+ Kf3 d2 Qe8 Ne4 Kg4 d4 Kh5 Nf6+ Kg6 d3 Be6 Nd4 Beh3 Nf5 Nh8 Bc4 Nf7 Re1 Qf8 d1Q Qe8 d2 Qf8 Nd7+ Kh7 Qh5+ Kg8 d1Q Qe8 Qd2 Qf8 Kb8 b7 Ka7 b8B+ Kb7 Ba7 Red1 Bb6 Rc2 Ba5 Rb6 Bd3 f1R Qe8 Rf3 Bdf1 Rf2 Qf8 Ka7 Qe8 Rb8 b6+ Ka6 b7 Nf6+ Kf8 Rc8 b8Q Rb2 Qb4 Rb8 Qc5 R2b5 Qcd6 Rc5 Qde7 Ng4 Kg8 Rb6 Q7f8 Nf6+
N4n1b/QBn3qp/1N1qr2R/Q3bp1b/K7/N2kqp1r/Rp4NB/7R w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 e4 Kd7 d4 Kd6 Kd2 f5 Kc2 b5 Kb3 c5 g4 f3 g5 h3 g6 h2 g7 b4 Ra2 Ne7 g8N Be6 Nf6 Bg7 Nd7 Re8 Ne2 Ng6 Nf4 Bh8 Ng2 Bf7 Ba6 c4+ Ka4 b3 Nb6 c3 Qg1 c2 Bf4+ Be5 Qf2 c1Q Qe3 Ra7 Bg3 Rae7 Bb7 Na6 Qg1 Re6 Qf2 Ke7 d6+ Kf6 d5 Nf8 d7 Nc7 d6 Bh5 Qc5 Qb8 d8R Qe3 d7 Rd6 Qa5 Ree6 Qa7 Kg5 Rc8 Rh6 Re8 Rde6 d8Q+ Kg4 Qd2 Qd8 Qe1 Qd6 Qea5 Bh8 e5 Kg5 Rg1 h1Q Bh2 Kg4 Rc1 Qhg1 Ra8 Kg5 Rc6 Kg4 Ra1 a2 Na3 Kg5 Rac1 a1B Rb1 Re8 e6 Bae5 e7 b2 Rbc1 Bg6 Rb1 Rh3 Ra1 Bh5 Ra2 Rd8 e8N Rd7 Rc8 Re7 Rd8 Re6 Ra8 Nb5 Nc7 Kg4 Re8 Kg5 Nca8 Nc7 Ne1 Qg3 Ng2 Kf6 Rc1 Qg7 Rh1 Kg5 Re7 Kf6 Rf7+ Kg5 Rf6 Kg4 Bg1 Kg3 Bh2+ Kf2 Rg6 Ke2 Rh6 Kd3
1B2bQnR/2n1QpN1/1p6/1B1q1Q1K/3bp1pb/1rBQ4/3R2Nq/1q3nk1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 b5 e5 b6 axb6 e3 b5 Ba3 b4 Bc1 Ra5 Qf3 e4 Qd1 Re5 fxe5 dxe3 a4 Ke7 c4 Ke6 h4 Kf5 c5 Kf4 c6 Kg3 c7 d5 e6 g5 a5 e2 e7 d4 e8Q b6 a6 b3 a7 b2 a8Q d3 h5 Ne7 h6 Nd5 h7 Bb4+ Nd2 b1Q Qe7 Nc6 Ra2 Bc5 Nc4 Bd7 c8Q Bd4 Nf3 Be8 Nd6 Nc7 Qf5 Qd7 Kd2 Kf2 Qa3 Rg8 h8B g3 Rb2 g2 Ne1+ Kg3 Qa8 g1Q Ng2 Qh2 Ke1 g4 Rd2 Rg5 Be5+ Kh3 Bb2 Qe6 Ba1 Qd5 Bc3 Rh5 Qad8 Rh6 Qf8 Ne7 Qdd7 Ng8 Qde7 Bb5 Ne8 Rh7 Nf6 Be8 Nh5 Rh6 Ng7 Rf6 Qc8 Rf3 Qf5 Rg3 Ra2 Re3 Kf2 d2 Bd6 Nb5 Bb8 Nc7 Qc2 d1N+ Ke1 Rg3 Qd3 Rf3 Kd2 e1B+ Ke2 Bh4 Rd2 Rg3 Ke1 Ne3+ Kf2 Ba4 Qa6 Be8 Bb5 Bdf6 Qaa3 Nf1 Qad6 Qda2 Qd3 Bd4+ Ke2 Bhf6 Bb4 Qd5 Qc2 Rb3 Bc3 Kg3 Qd3+ Be3 Qee6 Qh6 Qee7 Qf4 Rh8 Qh6 Ba6 Kh2 Bb5 Beg5 Kf2 Bd4+ Ke2 Ne3 Kf2 Kh1 Kg3 Kg1 Bb4 Qh7 Ba5 Bgf6 Bc3 Nf1+ Kf4 Bfe5+ Kg5 Bg3 Rd1 Qh2 Rd2 Bh4+ Kh5 Rb2 Qc5 Rb4 Qce7 Rb3
2R1b3/KB2RpQ1/3rB3/nk1N4/1pq1Qp1b/1n2q1n1/1b1pB1B1/2bN3N w - - 0 1 legal: proof: d4 a5 h4 e5 b4 axb4 f4 exf4 g3 c5 Ba3 b3 Bb4 cxd4 Be7 b5 Bg5 h6 g4 hxg5 Kf2 Rh5 gxh5 Ra6 Ke1 Rh6 Qc1 Rh7 Qd1 Rh8 Kd2 d5 Kd3 Kd7 a4 Kc6 c4 g6 e4 b4 e5 g4 h6 b2 e6 g3 a5 g2 c5 g5 a6 g4 a7 g3 a8B+ Bb7 h7 Qe8 h5 Nf6 h6 Na6 e7 Nh5 Qe1 Kb5 c6 Bg7 c7 Rf8 c8B Nb8 h8Q Nc6 h7 Na5 Ne2 g1B Bg2 Be3 Be6 Bc6 Bb7 Bc1 Ra3 Bf6 Rc3 Bh4 Qg7 Qc8 h8N Rd8 e8B Rd6 Ng6 Bd7 Nd2 b1N Nf1 Nd2 Ne7 Ndb3 Ne3 Qc5 Nd1 Qc4+ Kc2 Bc6 B8d7 Bb2 Bg4 Bc1 Bde6 Be8 Rf1 Bb2 Rf3 Bc1 Re3 Bb2 B2f3 g2 Ng3 g1B Nh1 Ng3 Bg2 Bc1 Re5 Bb2 Qe4 Be3 Be2 Bec1 B2g4 Qf1 Rc8 Qe1 B4f3 Qe3 Be2+ d3+ Kb1 Qc5 Ka2 d4 Nd5 Qb6 Bf5 Qc6 Re7 Qc4 Be6 d2 Qeh7 d3 Nc7+ Kb6 Qe4 Kc5 Nc3 d1Q Bh5 d2 N7d5+ Nc6 Bhf3 Qe1 Nd1 Qf2 Be2 Qcd4 Bef3 Na1 Be2 Nc2 Kb3 Na1+ Ka4 Nb3 Bef1 Qfe3 Be2 Rd7 Rb8 Nca5 Rc8+ Kd6 Kb5 Qdc3 Rc5 Qc4+ Kb6 Rd8 Ka7 Rd7 Kb8 Rd8+ Rc8 Rd7 Rd8 Kc5 Ka7 Rd6 Rc8+ Kb5+
4N1K1/5rNr/2B1r3/1p1QpBn1/2qrq1Q1/1N4BR/pp1p3R/nk4Bb w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 h4 g5 a5 gxh4 d3 exd3 Ba3 Bh6 Bb2 Be3 Bc1 cxb4 Qf3 b5 Qd1 Bb6 axb6 Ba6 Qe2 Bb7 Qd1 Bc8 Kd2 Kf7 Ke3 Ke6 Kf4 Kd5 Kf5 Kc4 f4 h5 Kg6 e5 Kg7 a5 g4 d5 f5 a4 g5 a3 b7 b3 g6 d4 f6 h3 c3 b2 f7 a2 f8N h2 Ne6 h4 Nc7 h3 Bg2 Nd7 b8B Ra6 Bf4 Nc5 Ba7 Re6 Ne2 Qh4 Ng3 Nf6 Nf5 Rf8 Ne8 Nh7 Bg3 Bb7 Qd2 Kb3 c4 Rff6 Kh8 Bf3 g7 Rf7 g8Q Qf4 Qg4 Ng5 Nfg7 Bb7 Qa5 Kc2 Qd8 Nb3 Nd2 Bc6 Rag1 Na1 c5 Qf1 Nb3 Kb1 Kg8 Qc1 Bf1 Qc4 Rg2 Bf3 c6 Be4 Rhg1 h1Q c7 h2 Rc2 Qg2 Rh1 Qe2 Bg2+ Qe1 Rf1 h1R Re2 Rh2 Rh1 Rh7 Rh3 Bc6 Be4 Bd5 Bf5 Bh1 Reh2 Qe4 c8B d2 Qf4 d1R Qd5 d3 Bd7 Re1 Qg4 Re3 Bb6 d2 Bc6 Rd3 Bg1 Rd4
1bbQ4/1nRn2BK/1Q2bR1R/2q3k1/Nrb3bR/r2B1nb1/2b1r3/Nq1N4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kf6 e4 g5 a4 d5 h4 b5 h5 f3 Kg3 f2 c5 b3 h6 b2 c6 d3 c7 b4 h7 d2 a5 b3 a6 d4 a7 d3 Ra2 Qd4 Rh4 Nd7 Nf3 Nh6 Rh2 Bd6+ Ne5 Re8 h8R Nf5+ Kg2 g3 Kf3 g2 Kg4 g1B Kh5 g4 Bh3 f1B Ra5 g3 Nc3 b1Q Qe1 d1B+ Nf3 g2 Qe3 d2 Ra6 Bc4 Bb2 Bc2 Ne1 Bf2 Nd1 g1N Bf1 Bg3 Bd3 Nf3 Rh4 Be6 Rh7 Qc3 Qb6 Bde5 Ba1 Nd6 Kh6 b2 Rh8 Qc5 Kh7 Bef4 e5+ Kg5 Rf8 f5 Rf6 Nb7 Rfh6 Bf7 e6 Be5 e7 f4 Rf6 Be6 Rfh6 Nh2 Rf6 f3 Rfh6 f2 Rf6 Ba4 Nc2 f1B Rfh6 Nf3 Rf6 Rd8 e8Q Bab3 Qe7 Re8 Qd8 Bbc4 Bg6 Bfh3 Bd3 Rb8 a8N Bhg4 Qc6 Bd6 Nb6 Ra8 Na4 Ra7 Nde3 d1R Qb6 Rd2 Nd1 Re2 Qb4 Bdf4 Rd6 Ra5 Qb6 Rb5 Rc6 Rb4 Rd6 Qc1 Rc6 b1B Bb2 Re3 Na1 Bc2 Rfh6+ Re7+ Bg7 Qb1 Rd6 Bed5 Rdf6 Bd6 Be4 Ra3 Bf5 Re2 Bd3 Bde6 Nb3 Na5 Na1 Bb7 c8R Bb8 Rc6 Bc8 Rc7 Nb7
QK4nb/nb1bRn1r/2bQ1B1N/3q3q/6N1/1kNR2b1/1b4B1/1rrRR2q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 Kg3 f2 a6 f4+ Kg2 f3+ Kg3 b3 h7 Kb4 a7 d3 e5 d2 e6 d4 c5 d3 e7 b2 e8R Bg7 c6 Bd7 c7 Nc6 c8R Ne5 Be2 f1Q Nc3 b1N Nh3 f2 Rc7 Na3 Rh2 Qh1 Re6 f1B Re7 Bg2 Nf4 Rc8 a8Q Nf7 Rh3 Bb7 Qf1 d1Q Re8 d2 Qe1 Kb3 Nh5 b4 Bf1 Nb5 Rc6 Na7 Na2 Bb2 Qe7 Qa5 Nc3 Qad5 Rb1 Qe2 Qd8 d1B Rc7 Qee5+ Bf4 Bf3 Bg2 Bbc6 Nf6 Qf5 Kf2 g3+ Ke3 g4 Be5 Qh5 Kf4 Bb7 Rd1 Be4 Bf1 g2 Rhd3 g1B Bg2 g3 Ng4 Bf2 Bf6 Bf3 Ree1 Be4 Bh3 g2 Qe7 g1B Bg2 Bd4 Qe6 Bgf2 Qd6 Bdc6 Re7 Bf5 R3d2 Bfd7 Rd3 Ngh6 R1e4 Rc7 Ree1 Rhc8 h8N Ng8 Ng6 Bh4 Nh6 Bhf2 Bh4 Bh8 Ne5 Kc2 Bg5 b3 Bf6 Bg3+ Ke3 Qdf3+ Kd4 Qe4+ Kc5 Qd5+ Kb6 Ba3 Qb8 b2 Neg4 Kb3 Qa8 b1R Bf3 Bc1 Bg2 Bb2 Rde3 Nd8 R7e4 Bf5 Red3 Rh7 Re7 Be8 Nb5+ Rc3 Bf1 Nf7 Bg2 Bec6 Kc7 Bfd7 Kb8 Ka2 Be4 Rc2 Bg2 Rcc1 Nc3+ Kb3
rq2bK2/1nrNNQ2/3B1qrn/q5BB/1b2nB2/Qq2RR2/q7/1k1qbR2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 b3 a7 e2 f6 e1B h6 g4 h7 b2 c3 g2 f7 b4 Be2 b3 Qc2 g3 Nd2 b1Q Ne4 b2 Bf3 Nh6 Nf2+ e4+ Ke2 Kc4 Nd3 d5 Ra2 e3 Nc5 Nc6 Qg6 Bd7 Ra3 Qb8 Bh5 d3+ Kf3 d4 Ke4 e2 Bg5 Nd8 Nf3 g1R Nh4 g2 Nf5 Qa2 Ne7 Be8 Nd7 b1N Rh3 d2 Rf3 Rg8 h8B d1Q Be5 d3 Bef4 d2 Qh7 Rg6 Rb3 Qb6 Ke5 Nb7 Rf1 Kd3 c4+ Kc2 c5 Kc1 c6 Nc3 c7 Ne4 Rbf3 Qdb3 c8R+ Kb1 Rcc3 d1Q Rce3 Rh1 Qg7 g1Q Qf6 Qf2 Qf5 Rc8 a8Q Rc7 Qa3 Qa7 Qe6 Qb8 Qd5 Rg1 Qc4 Ra6 Qd5 Ra8 Ke6 Bb4 Qc4 e1Q Qd5 Bg7 f8B Bgc3 Qc4 Qee2 Qd5 Be1 Qc4 Qed2 Qd5 Ng3 Kf6 Ne4+ Kg7 Rg4 Qf7 Rg1 Ng8 Qdd5 B8d6 Qa5 Kf8 Qfb2 Ne7 Qf6 Bh4 Rg7 Bhg5 Rg6
4kn1Q/1Br2NK1/n1RR2b1/r1Q5/1Q1b1r2/n1b2R1N/b2bqB1Q/n2nq3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 c4 d5 h4 f5 e4 b5 a4 f3 Kg3 f4+ Kh2 f2 e5 d3 h5 g3+ Kg2 g4 h6 d2 c5 d4 h7 d3 a5 b3 a6 b4 c6 b2 c7 b3 e6 Ke7 a7 Nf6 Ne2 Qe8 Nd4 Bh6 Ra6 Nfd7 Rc6 Nf8 Qf3 d1Q Qe2 d2 Na3 b1N Rc5 b2 Rh3 f3+ Kh1 g2+ Kh2 g1B+ Kg3 Qe1 Kh4 d1N Bg2 g3 Nab5 f1N Be3 f2 Bb7 g2 Nd6 Nfd2 Nf3 Nb3 Ng5 f1R+ Rg3 Rf7 Kh5 Na1 Nh3 Na3 Rf3 b1B Qf2 Rg8 h8Q Rg6 Qa2 Bd7 c8Q Rgf6 Rd5 Bb5 Qc5 B5d3 Qb4 Kd8 e7+ Kd7 Qe2 Ba2 Rc5 Bh2 Rc6 g1B Qed2 B2f4 Qh2 Be5 Bb6 Bd2 Bc5 Qd8 e8R Bec3 Re6 Qe7 Be3 Bg6+ Kh6 Qe8 Qc5 Kd8 Qb4 Rc7 Nf7+ Kd7 Kg7 Qe7 Bb6 Ke8 Red6 Q7e2 Bc5 Bgd4 Bb6 Be5 Bf2 Bed4 Rb6 Nc6 Qc5 Nb4 Rbc6 Rac8 a8Q Rb8 Qa4 Ra8 Qcb5 Ra5 Qc5 Na6 Qab4 Rf4+
3b2K1/1bk5/1nq1QB1r/q3bN1b/1bnR4/1qr1r3/QN2BN1Q/qRq4N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 f5 c4 b5 a4 g5 h5 f3 Kg3 f2 e5 b3 h6 b4 a5 f4+ Kh2 g3+ Kh3 g2 Kg4 f3 Kf5 g4 Kg6 b2 Kf7 d3 a6 b3 a7 d2 h7 d4 c5 g3 e6+ Kc7 e7 d3 e8Q Nh6+ Kg6 Bb7 c6 Ng4 Kf7 Ne5+ Ke6 Nc4 Kf7 Nd7 Ra2 Ndb6 Rh6 Rc8 a8Q Bb4 Nc3 b1R Na4 b2 Nh3 g1B Ra1 g2 Be2 f1Q Nf2 Bh2 Qe6 g1B Qc2 d1Q Bg5 d2 Bf6 Qg2 Rh4 Qc1 Rd4 d1B Nh1 f2 Qa7 Re8 h8N f1Q Ng6 Be5 Nh4 Be3 Qa6 Bg5 Nf5 Qff3 Qd2 Qb3 Qf4 Rh8 Qh2 Rh6 Qa7 Qdd5 Qa8 Re8 Qa6 Re7+ Kg8 Qa5 Qa7 Qce3 Qa6 Rc1 Qa8 b1Q Nb2 Q1a2 Rb1 Rc3 Qa6 Qa1 Qa7 Qc5 Qa2 Qa5 Qh3 Qc1 Qh2 Kb8 c7+ Ka7 c8N+ Kb8 Qf7 Qc6 Ncd6 Kc7 Ne4 Bh4 Nef2 Bg5 Bf1 Bh5 Be2 Bh4 Qd5 Re6 Bg7 Bd8 Bf6 Re7 Qe4 Bg3 Qd5 Ree3 Qe6 Be5
1QbK1nRb/Q2n1rR1/1r2q3/2B2kN1/q6b/3qBq2/n1N1R1bb/2B3qB w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 d5 f4 g5 c4 b5 a5 b3 a6 d3 Kc3 g3 Kd4 b4 Kc5 d4 a7 g2 h5 b2 h6 g4 h7 g3 Nh3 g1Q Qd2 g2 Kb5 b3 c5 e3 c6 e2 c7 e1B Kb6 Nd7+ Kc6 Kf5 Qc2 e5 Qc5 d2 Bc4 d1Q Qa3 e4 Bb5 e3 Nd2 b1B Qd6 e2 Nc4 d3 Ra4 d2 Ng5 b2 Ra2 Bg7 Na3 Nf8 Nc2 Rb8 a8Q Bh4 Qa7 e1Q Bc4 Rb4 Bd5 Nf6 Rh3 Rb7 Rg3 Qe6 Rg4 Rg8 h8B N6d7 Bf3 Bc3 Bd4 Rg7 Be3 Rf7 Bd5 Bh8 Bf3 Kg6 f5+ Kf6 Bd5 Qf3 Be4 d1Q Rg3 Kg7 f6+ Kh6 Bd5 Kg6 Rg4 Kf5 Rg3 Rh7 f7 Qd3 Rg4 Qdf6 Rg3 Qfd4 Rg4 Rb5 Rg3 Qa4 Rg4 Ba6 c8R Rb6+ Kc7 Bb7 Re8 Bc8 Kd8 Rg7 Qdb8 Rh7 Ra1 Ba2 Bc6 Bd5 Ra2 b1N Rg3 Nc3 Rg4 Ng6 f8B Rf7 Bfc5 Ngf8 Rb2 Na2 Bb7 Ng6 Rg8 Ngf8 Rg3 Qgd1 Ba8 g1B Rg2 Bh2 Re2 Rd6 Rb7 Qg1 Rc7 Rb6 Bc6 Qfg3 Rb7 Bg2 Bd5 Bf1 Bh1 Bg2 Rc7 Rh7 Rc6 Qeb3 Rd6 Rf7 Rdg6 Qe6 R6g7 Qf3
1Q1B2n1/1b2Qq2/b2KNNR1/n1r4B/1nN1q1R1/1rk1N1r1/3R3n/4bbnb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 b5 a4 h3 g4 f3 e4 d3 c4 b3 a5 h4 a6 h2 c5 d2 c6 h3 a7 b4 c7 b2 Bd3 f2 Ra5 f1N Qa4 d1N Qa1 b3 Ra6+ Nc6 Ra5 Nc3+ Kc4 Qe7 Nd2 b1Q Ra6 Ke5 g5 f5 g6 f4 g7 f3 Qb2 f2 Be2 Rh5 Ra4 Nb4 Qa2 b2 Bf3 Ne2 Qa3 d5+ Kb5 Kd4 e5 Qg6 e6 b1R Nc4 Qgf7 Bg5 Rb3 Ne3 Kc3 Bg4 d4 Nf3 d3 Nd4 Bb7 c8N d2 Nd6 d1N Kc5 Nb2 Bf3 Qee8 e7 Ba6 Ndc4 Ng1 Kd6 Rb8 Bh4 Rc5 a8Q Rbb5 Qa7 Qa8 Bd1 Qe4 Bh5 Rg5 Qb6 Rg3 Ne6 Rc5 Qb7 Nf3 Rg1 h1B Rg2 Ng1 Qb8 Nh2 Bg5 f1B Rd2 Qc2 Bh4 Bhb7 Bg5 Qe4 Bh4 Nf6 g8R Bh6 Rg5 Ng8 e8N Bg7 Rg6 Bd4 Ng2 Bf2 Nge3 Be1 Bd8 Nc6 Bf3 Nd3 Bh5 Ndb4 Nf6 Na5 Nb2 Nd5 Rad4 Nb4 Nbc4 Qf3 Rdg4 Qe4 Ng5 Nhf3 Ne6 h2 Qa4 h1B Qe8 Nh2 Qf8 Bh3 Qe7 Bf1
bq1Q4/1q4B1/Bq1n1nKR/1RBbq2N/b5bb/3NN3/2r1Q1Nk/1q4rr w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 c6 b2 c7 b4 Qb3 d1B+ Ne2 g1Q Bg2 d3 Qc2 b3 Rh5 d2 Bf1 Nf6 Ra3 Be7 Qd3 Nbd7 Qa6 Ne8 Qb6 Bb7 c8Q Ndf6 Rh3 Bd5 Qb5 Qgb6 Qca6 Nd6 Qaa5 Qdb8 Nc3 b1Q Rh6 b2 Na2 Ba4 Nb4 d1B Rb3 Q8b7 Qd3 Rac8 a8N Rc2 Nc7 Qa1 Qdb5 b1Q Be3 Qbb2 Bc5 g4+ Kf2 g3+ Kf3 g2 Qe8 Rg8 h8B g1R Bg7 Rh1 Qa6 Qb8 Qd8 Ba8 Ncd5 Qbb1 Bf8 Rgg1 Bg7 Qd4 Ne3 Bd5 Kf2 f3 Rb2 f4 Nd3+ Ke6 Rb3 Qe5 Rb5 Q6b7 Ra5 Q1b6 Rb5 Qg5 e5 Qh5 Ng2 Kf5 e6 Kg4 Ne3+ Kh4 Ng2+ Kh3 Ne3+ Kh2 Bh3 Nd7 Bf1 Bg5 e7 Nf6 e8N Qf7 Qa5 Qfb7 Qd2 Bh4+ Ng3 Qf5 Ng2 Qe4 Nc7 Qe5 Qe2 Rc3 Ke1 f2+ Kd2 f3 Nh5 Rc4 Ne3 Rc3 Ne6 Rc1 Nef4 Rc3 Bg2 f1B Bh3+ f2 Bc8 Bh3 Nfg2 f1Q Be6 Qf7 Bc8 Bg4 Ba6 Qfc7 Nb4 Rc2+ Kd3 Qee7 Kd4 Qcb7 Nd3 Qec7 Ke5 Qe1 Qf2 B1f3 Qe2 Qb1 Kf4 Be1 Kg5 Bh4+ Kg6 Qe7 Ba3 Qe5 Bb4 Q7c8 Ba3 Ba8 Bb4 Qcb7 Bc5 Bd5
b1kq1q2/1q1r1Nb1/1n3QRN/1b2n3/n1qQ4/1BBB2K1/3b4/rR1bQr1B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 f5 c4 b5 a4 g5 h5 f3 c5 g3+ Ke1 g4 e5 b3 a5 b4 a6 b2 a7 f2+ Ke2 d3+ Ke3 d2 Kf4 b3 h6 g2 h7 g3 Na3 b1Q Qe1 d1R Qc3 b2 Nc4 d4 Rh5 d3 Ne2 g1Q Rh6 d2 Rc6 g2 Re6 Bb7 c6+ Kc8 c7 Nc6 Qg3 Nf6 Ra2 Nd7 Ra1 Nb6 Qg4 Bg7 Ng3 Rf8 Bd3 f1B h8Q Qc5 Rg6 g1B e6 Ne5 e7 Bd4 e8B Bc3 Ba4 Rf6 Bb3 Qcf8 Qf3 Rf7 Qe3 Rd7 Qd4 Re1 Qh1 d1B Bd2 Bfe2 Qf3 Rf1 Be1 Ba5 Bc3 Bc6 Qff2 Bef3 Qe1 Bb5 Ne3 Bb4 Ne4 Ba5 Kg3 f4+ Kh3 Bh1 Nf5 f3 Kg3 f2 Ng5 Bb7 Nh6 B7c6 Bdc4 Qe4 Ngf7 b1N Bd3 Bb4 Bd2 Nc3 Rb1 Nca4 Bc3 Ba5 Ba1 Bd2 Bc3 Rb8 a8Q Bd5 Qc6 Ra8 Qf6 Ra6 Qc5 Ba8 Qd4 Qb7 Qc4 Rh1 Be4 f1Q Qd4 Nc5 Bf5 Ra1 Be4 Qb8 Bec2 Qc4 Bd3 Kb7 c8B+ Kc7 Qdf4 Rf1 Qd4 Nca4 Bb7 Qbc8 Bd5 Qb7 Bh1 Kc8
2nR2b1/r1Q5/q7/1QKr4/Rn2qBkN/nNBrq1b1/2Q3B1/B1b2rrn w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1B h5 d3 h6 e3 a5 d4 a6 g3 h7 e2 a7 g2 Qd2 g4 Na3 g3 Qc2 Ne7 Qc3 d2 Qe3 d1R Qe5+ Kg4 f5 d3 f6 d2 f7 Nbc6 Nh3 g1Q Qc5 g2 Qe3 Bg3 Nc2 e1Q Qd4+ Qe4 Rb1 Qe3+ Qc3 g1R Nd4 Bh6 f8B Qd6 Bg7 Rd8 h8B Be6+ Bc4 Bf7 Bd5 Bg8 Ng5 Nc8 Ngf3 Rdf1 Ra1 d1N Nh4 Nf2 Rh2 Nh1 Ra4 Rd1 Rf2 Rd3 Rf8 Rd7 Rd8 Qf6 Kb2 b3 Ka3 b2 Nb3 b1R Qc2 Nb4 Bc6 Qfg6 Ba1 R7d4 Bd2 Qge6 Bdc3 Qc4 Be5 Rbf1 Bf4 Qce6 Bd5 Qa6 Bc6 Rb8 a8Q Rb7 Bd5 Ra7 Qb7 Na2 Kb2 b4 Qb5 Bg5 Nc1 b3 Ka3 b2 Nb3 Nb4 Bb7 Qe5 Bg2 Q5e4 Rd7 Nd6 c8Q Bh6 Qc7 Nc8 Rd8 Bg5 Ra5 b1N+ Ka4 Qae6 Ra6 Na3 Ka5 Nd6 Kb6 Nc8+ Kc5 Q6g6 Ra4 Qa6 Qbc6 Qf2 Be5 Bc1 Bf4 Qfe3 Qb5 Rd5#
3Rn3/bnQrr1r1/1qR1b2K/Brb1n2B/3kr1n1/2RN2qQ/qN1N2N1/8 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 c6 b2 c7 b4 Qb3 d1N Qc4 b3 Nd2 b1Q Rh6 b2 Nh3 g1N+ Kg2 d3 Qe6+ Kd4 e5 g4 Rg6 g3 Qe8 f3+ Kh1 f2 Kg2 f4 e6 f3+ Kh1 g2+ Kh2 Bc5 Kg3 Nd7 Kf4 Ngf6 Kg5 Ne3 e7 Rg8 h8R Qa2 Kh6 b1R Ba3 Rg7 Nf4 Rb5 Be2 f1Q Bb4 f2 Bh5 Qe1 Qf7 f1R e8N Qg3 Rc1 Re1 Rc3 Nf3 Nd6 g1B N6e4 Ne8 Rc6 Nfe5 Ng2 Rab8 a8Q R8b7 Nf2 Ba7 Ba5 Nc5 Qe7 Be6 c8N Qb6 Nd6 Rd7 N6c4 Nb7 Qa3 Rde7 Qb8 Re2 Nb2 Re1 Nb1 d2 Qc7 d1R Nfd3 Re2 Nd2 Ree1 Bf3 N3g4+ Kh5 Nh2 Kh6 Re4 Rf8 Rf1 Bh5 Rff7 Rh8 Rd7 Rg8 Rfe7 Rf8 Kd5 Rh8 Bc5 Qb3+ Kd4 Qa3 Ned6 Rd8 Ne8 Qb3 Bf7 Qe6 Bg8 Qg4 Be6 Qh3 Nhg4+
NRRK3Q/qb6/1bB1kNQ1/qb6/1b1r4/rnB1rr2/1n1bB2N/4qnB1 w - - 0 1 illegal: No possible last move
qnBQ3Q/Bq2N1B1/6Nr/n1bnR1R1/1b3b2/1k1Brbqn/6NK/2br4 w - - 0 1 illegal: No possible last move, all moves rejected
nbQ3QR/3r2Nr/bR5B/kn3q1R/1n2rB2/2NnrB2/r1B1n2K/3br3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 Kg2 Kd7 c4 Kc7 a4 Kb6 e4 g5 h4 f5 h5 g3 h6 d3 e5 g4 e6 d2 e7 b3 e8Q b2 c5+ Ka5 c6 b5 c7 d4 h7 d3 Qg6 b4 Be2 f3+ Kf1 b3 Qe1 f4 Qf6 g2+ Kf2 Ne7 Qd6 Ba6 c8B Nec6 Qd1 Qf6 Bf5 Nd7 Bf1 Nb4 Rh6 Nb6 Nc3 b1R Qb8 b2 Qb7 Bd6 Qc2 d1B Be4 d2 Rh5+ Qf5 Rg5 Bb8 Nh3 g1R Rg6 Rg3 Ra2 Re8 Bd5 Re4 h8B Ra1 Bc6 b1N Bg7 Ra7 Qf7 Rd7 Bd3 Na3 Ng5 Nb5 Qg8 Na8 Bh6 Rh3 Kg1 f2+ Kg2 f1R Ne6 g3 Ng7 Rfe1 Re6 R4e3 Bf3 R1e2+ Kg1 g2 Rb6 Re4 Rb2 R2e3 Rb1 Ra2 Rb2 Rg3 Kh2 g1N Rb1 Ne2 Rb3 Nd5 Rb4 Rg1 Rc4 Nb4 Rc5 Re1 Rd5 Qg6 Rh5 Qh7 Nd5 Qf5 Qcc8 Qe5 Nc3 Qf5 Ne6 Rh7 Bc2 Nd3 Ng7 Nb4 Bg2 f3+ Bf4 f2 Bh1 Nd3 Bf3 Kb4 a5 f1N+ Kh1 Nfg3+ Kh2 Nd4 Bh6 Nc6 Bf4 Bb7 a6 Ka5 a7 Ne2 Ba3 Ba6 Bf8 Nac7 a8R Ncb4 Ra7 Na8 Re7 Qg5 Re8 Qg6 Be7 Qg4 Bg5 Qf5 Bh6 Ne5 Bb3 Bc2 Qf7 d1R Rh8 Rd7 Qfg8 Bd1 Bc2 Ned3
1q1Q2bb/6b1/bnrKB3/Q7/BrRBqN1N/1b1r2k1/1nbq1R2/4Rr1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Ke5 h4 g5 a4 f5 a5 d5 c5 b5 c6 b3 c7 b2 h5 g3+ Kf3 g4+ Kg2 b4 h6 b3 h7 d3 a6 d4 a7 d2 Na3 b1R Qe1 d1Q Qe3 d3 Qf2 b2 Ra2 d2 Bd3 Bg7 Rh5 f3+ Kh1 Kf4 e5 g2+ Kh2 g3+ Kh3 Nc6 e6 Nf6 e7 Ne5 e8R Nc4 Rf8 Nd7 Be4 Ba6 c8R Ndb6 Qc5 f2 Bb7 f1B Rc6 Qb8 Rf7 Rd8 h8Q Rd3 Nf3 g1Q+ Kh4 g2 Ra1 Qc2 Qa5 Qd4 Nb5 g1B Qd8 Qe4 Nc7 B1d4 Bc8 Bh8 Rhh6 Bdg7 Be6 Bg2 Kh5 Kg3 Kg5 d1B Nd5 f4 Rh1 Qd2 Nh4 f3+ Nf4 f2 Re1 f1R Rc5 Na3 Rc4 Bb3 Rf5 Bh3 Kg6 Bg4 Kf7 Bgd1 Ke7 Bdc2 Rc8 Nac4 Rf6 Qf2 Be3 Qd2 Bd4 Rc1 Rc6 b1B Rc7 Nb2 Rc4 B1a2 Rf8 Qbb7+ Kd6 Rb8 a8B Qc8 Bc6 Rb7 Ba4 Qb8+ Kc5 Rc7+ Kd6 Rb1 Rc6 Bd5 Rc4 Bab3 Bf5 Bg8 Be6 Rf2 Rh1 Rbf1 Re1 Rff3 Nh3 Rf5 Rf7 Rb5 Rf2 Rb4 Nf4 Rc6+
1k1nqr2/1b4Rq/n3b1n1/BQn3bq/2Q1Nn2/RR1B1N1R/2r1b1KB/5n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc7 c4 g5 a4 b5 h5 f5 a5 b3 e5 b4 h6 g3+ Kg2 g4 e6 d3 h7 d2 a6 b2 c5 b3 a7 d4 e7 d3 e8R Be6 c6 Nf6 Be2 f3+ Kf1 f2 Ra3 f4 Ra2 Nfd7 Ra6 Be7 Qc2 d1B Rh2 d2 Ra1 Nc5 Nc3 b1N Bc4 b2 Qd3 Nba6 Qe3 Rf8 h8B Be2+ Kg2 d1Q Qd3 f1B+ Kh1 f3 Rh5 g2+ Kh2 f2 Nf3 g1N Be3 g3+ Kh1 g2+ Kh2 Rc8 a8Q Bg5 Qg6 Nh3 Qf5 g1N Ne4 Nc3 Bd3 b1Q Bd2 Nd5 Ra3 Nhf4 Rh3 Bg2 Re7+ Qd7 Rf7 Ng6 Rg7 Qe7 Kg3 f1N+ Kf2 Qb7 Qa7 Qd7 Qb6+ Kb8 Qb3 Qd8 Qc4 Qe8 Ba5 Bh1 Ne5 Nf3 c7+ Ka7 Rb3 Nd4 Nf3 Nc6 Qe5 Nd8 Qb2 Rb8 c8R Qbf7 Rc6 Rc8 Rcb6 Ka8 Ra3 Qg8 Rbb3 Qh7 Qbc1 Rc7 Qb5 Rc8 Qcc4 Rc7 Bb6 Kb8 Ba5+ Kc8 Qc3 Bc1 Rd7 Ndf4 Nh2 Ncb7 Rb4 Kb8 Be5 Bef3 Nd6 Bd2 Qb3 Rc2 Q3c4 Bfg4 Rbb3 Bh5 Bb6 Nbc5 Ba5+ Bb7 Rg7 Nd5+ Kg2 Qg4+ Bg3 Qh4 Be5 Be2 Nf3 Bg5 Bh2 Q4h5 Ne4+ Ndf4+
2B2N2/q1rQ2n1/1knRnbN1/r1rq1R2/1B6/2R1q2K/1n2Q3/RN2nnqb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 c4 f5 e4 h5 g4 d5 Kg2 Kd7 a4 Kc7 e5 b3 g5 h3+ Kh2 f3 g6 f4 a5 b2 c5 f2 c6 b4 a6 f3 a7 b3 g7 d3 e6 h4 e7 d4 e8Q d2 Bc4 f1Q Be2 d3 Nc3 b1Q Qh5 f2 Nb5+ Kb6 c7 b2 Qf7 Na6 Nc3 Qe7 Qc2 d1Q Ra2 d2 Qf3 Qfe1 Qce4 Rh5 Qc2 Nc5 Qa4 Ne6 Qg2 Bb7 c8R Rc5 Ba6 Qe3 Qc4 Qdf3 Rc7 d1N Ra3 Qd5 Ra2 Rc8 Rd7 R8c7 a8R Qa1 Ra7 b1N Qgg4 Nd2 Ra5 Nb2 Nb1 Q7g5 Na3 Be7 Nf3 Bf6 Qe2 Ne7 g8N Nc6 Rd6 Qg7 Re1 Ba8 Ne7 f1N+ Kh1 h2 Kg2 h1N Bc8 Qg6 Kh3 Nhg3 Ng5 Nf3 Nh7 Nf5 Bd2 Nfg7 Nb1 Bb7 Qa4 Qgg1 Rc1 Qaa2 Nf8 Ne1+ Qf3 Qa1 Qd1 Qa4 Neg6 Qad4 Ra1 Qa4 Ra8 Qa7 Bb4 Ra5 Qe2 Rc5 Qg3 Ra5 Rc3 Rc5 Kg4 h3 Ra5 h2 Kh3 Qc1 Qgd3 Qge3+ Kg4 h1R Ra1 Rh5 Qdd1 Qb8 R8a5 Rg5+ Kh4 Qg1 Kh3 Qa7 R5a3 Re5 Rf3 Qce3 Rc3 Ra5 Qdd3 Qb3 Qdd1 Rec5 Qdd2 Qd5 Qd4 Qeg5 Rf5 Q5e3+ Qf3 Qde5 Rd7 Ncd8 Qd6+ Bc6 Qe7 Be4 Rd6+ Nc6 Qd8 Qd5 Qd7 Qeg5 Qf2 Bh1 Qe2 Q5e3+
1b1q4/1N2N3/4Brq1/2B3qk/KN3RRb/qR2bqnN/1Q1Qb3/n1nr3q w - - 0 1 illegal: No possible last move, all moves rejected
7b/N2nRrQn/kq2K3/r1n3N1/3rQRRN/4n2b/B3qN1B/1rr1q1r1 w - - 0 1 illegal: No possible last move
1K2R3/r2q1n2/1BkNqnB1/6br/4b3/n3RbB1/1n3QNQ/n1rbN1nB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 f5 c4 b5 a4 g5 h5 f3 Kg3 f2 e5 b3 h6 b4 a5 f4+ Kh2 g3+ Kg2 d3 Kf3 d2 h7 d4 Ke4 g2 Kd5 d3 a6 b2 a7 f3 c5 b3 Nc3 b1B Qe1 d1N Qe2 b2 Ra6 g4 Bf4 g3 Rh3 d2 Re6 Nc6 Re8 Bb7 Be3 Qe7 e6+ Kc7 Qe1 Ne5+ c6 Nf7 Nce2 Bh6 Nf4 Bg5 Bd3 f1N Bg6 f2 Nf3 g1R Ng2 Qd7+ Kc5 Nf6 e7 Be4 Qe2 b1N Nfe1 Rg8 h8B Nb2 Kb5 d1B Bb6+ Kd6 Qe3 Qe6 c7 Nfd2 c8Q Nb3 Qc2 f1Q+ Qce2 Bbc6+ Ka6 Qff5 Q3f2 Na3 Qh5 Rg7 Qh6 Rd8 a8B Na1 Ka7 Rh7 Bb7 Rd7 Kb8 Qg4 Ba8 Ra7 Qh4 Rh5 Bb7 Ng8 Be5+ Kd5 Bec7 Nf6 Nd3 Bf5 Ngf4+ Kc4 Bd4 Kb5 Rf8 g2 e8N Qc4 Bdb6 Bc2 Re3 Rc1 Qh2 g1N Ne1 Bd1 Rh8 Qd4 Be5 Qd7 Nd6+ Ka4 Re8 Bg2 Bf3 Be4 Bc7 Qge6 Bb6 Bf1 Bg2 Bfe2 Bh1 B2f3 Nfg2 Kb4 Bg3 Ka4 Nc8 Kb5 Nd6+ Kc6
1RrbQ1NQ/3r1qB1/n1bq3b/1r5R/1b1r3Q/1k1BnB2/3nb1Q1/n2N3K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 a4 Kd5 h4 Kc4 e4+ d3 e5 d5 c3 f5 e6 g5 e7 b5 e8B f3+ Kh2 f4 h5 f2 h6 f3 h7 d4 a5 b3 a6 b2 a7 b4 Bg2 f1Q Be3 b3 Qc1 d2 Bf4 d1N Ra2 d3 Ne2 d2 Bc7 f2 Bb7 Bd7 Bb6 Nh6 Bg6 Bc6 Qc2 Qd6+ Ng3 Nf5 Bd8 Nfe3 Rg1 Na6 Rg2 Rc8 a8Q Bh6 Be7 Rhd8 h8Q Rd7 Qc1 Nc2 Bf8 Nde3 Ra3 d1R Ra5 Na1 Bg7 Rd3 Re5 Rd4 Nf5 g3+ Kh3 Nd1 Qf4 Ne3 Ne7 g4+ Kh4 Nb4 Ng8 Na6 Rh2 g2 Kg3 g1B Rhh5 Nc7 Re8 Na6 Kh4 g3 Rf8 g2 Kh3 Bb5 Bf3 Bc6 Qh4 Bh2 Rd8 Be5 Rf8 Bf6 Bh7 Bd8 Bc2 Rf4 Kh2 g1B+ Kh1 Rd4 Bce4 Qd1 Bf5 f1B Re8 Be2 Bh7 Qd5 Bd3+ Kc5 c4 Kb4 c5 Qf7 Nc3 b1R Rf8 b2 Re8 Qd2 Nd1 Kb3 Rf8 Bf2 Re8 Be1 Rf8 Ba4 c6 Bb5 c7 Bc6 Qb7+ Qb4 Qa8 Qd6 Re8 Bb4 Qb7 Rb8 c8Q Rc1 Qa8 b1N Rf8 Rb5 Qcb7 Be7 Rb8 Nd2 Qc8 Rcc5 Qe8 Bd8 Qb7 Be4 Qd5+ Rcc4 Qdg5 Rc8 Qg2 Bc6
1RbN3q/nbn3K1/Q2BB3/1n4nq/1q3r1q/3bR2R/1r1Q1N1R/2Q1bkn1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 e4+ d3 a4 b5 g5 h5 g6 d5 g7 b3 c3 h3 a5 b2 a6 f3 a7 f2 Ra2 d4 Bh6 h2 Ra5 b4 Bg2 f1B Be3 d2 Ra6 Kd3 c4 b3 c5 h4 c6 h3 c7 f4 Qc1 d1N Rb6 f3 Ne2 f2 Qc5 Bg4 c8Q Rh4 Qc1 Ne7 Kf6 Nbc6 g8R Rb8 a8R Nc3 e5 Ne4+ Kf7 Nd5 e6 Nc7 Kg6 Bb4 e7 Be1 Raa6 Na7 e8Q Ng5 Nbc3 b1Q Ra4 b2 Rg1 h1Q Rc6 h2 Qe5 Bd7 Kg7 Rf4 Re8 Rb7 Ree6 Qe8 Qa5 Rb6 Qd8 Bc8 Ng3 Be2 Rb4 f1N Bd5 Nd2 Qa3 Ndf3 Rg2 Ng1 Nf5 Bf3 Rg3 Bg2 Ne4+ Ke2 Re7 d3 Rh6 d2 Nfd6 d1N Nf2 Nc3 Nb7 Kf1 Bc5 Qe4 Qd7 b1B Nd8 Rb7 Qa2 Rb5 Qc6 Bd3 Qad2 Bf3 Bd6 Rb7 Ra4 Rb2 Rb4 Qc4 Rb8 N3b5 Rh7 Qb4 Qa6 Bg2 Bg8 Bgb7 Ree3 Qf3 Bc4 h1Q Be6 Qh2 Rh4 Qfh5 Rgf3 Qg3 Rh2 Qgh4 Rfh3 Qeh8#
k1b2bRK/3bNrB1/r2n3r/4rQqB/6B1/4R1nq/1qRb1qb1/RN2Q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc6 c4 g5 a4 b5 h5 Kb7 a5 f5 e5 b3 e6 b2 e7 d3 e8B g3+ Kf3 b4 h6 g2 c5 b3 h7 g4+ Kf2 f3 Kg3 d2 Kf4 g3 Ke5 f4 Bd3 f2 Nh3 f1Q Rh2 g1Q Na3 b1B Nc4 d4 Qf3+ Nc6+ Ke4 d1B Na3 b2 Ng5 g2 Ne6 Na7 Be3 Qgf2 Qe2 g1B Ke5 f3 Bd7 Qh3 Bh6 Ba4 Bg7 Nh6 Nf4 Nf5 Nd5 Ng3 Ne7 Nb5 Kf6 Nd6 Bg6 d3 Bg4 d2 Qe1 d1R B6h5 Be4 Nb1 Ra6 c6+ Ka8 c7 Rd5 Ra3 Re5 Re3 Bad7 Rg2 Rb6 a6 Rc6 a7 Ra6 Nd2 b1Q Rh2 Qb4 Nb1 Qb6 Rg2 Qfb2 Rc2 Bd5 Kg6 f2 Kf6 f1R+ Kg6 Kb7 a8R Bg2 Kh6 Rf7 Kg6 Rg8 h8R Qa7 Kh7 Qad4 Ra3 Be3 Rac3 Bd2 Re3 Rb6 Ra1 Ra6 Re4 Qf2 Re2 Ka7 Re3 Bcb7 c8Q Qa5 Qc4 Ka8 Qd3 Bbc8 Qf5 Qd8 Nd5 Qg5 Ne7 Rf6 Bh6 Rgg6 Bg7 Rf7 Rg8 Rgf6 Kh8 Rh6+
rq5B/1qn1K1R1/4bn1b/k3qBQn/N2b1N1R/4R1n1/NR4Q1/b4rqb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 Kd7 h4 Kc7 a5 f5 e5 b3 a6 Kb6 e6 d3 e7 d4 e8Q f3 Kg3 b4 a7 b2 h5 f4+ Kf2 g3+ Ke1 b3 Kd2 g4 h6 f2 h7 f3 Rh3 g2 Qe5 g3 Qh5 Qd5 Rh1 Nf6 Qg5 Na6 Qg6 Bh6+ Qg5 Rf8 h8R Qe5 Nh3 g1B Nf4 g2 Qc2 Be6 Rh2 Nc7 Nc3 b1Q Ra3 b2 Na2 Rf7 Rc3 Ka5 c5 Rff8 c6 Rf7 Kd1 d2 Bd3 f1N Bf5 f2 Re3 Ng3 Rg8 f1N Rh4 Ngh5 Ke2 d1B+ Kd3 Nfg3 Rg7 Bf3 Bd2+ Ka6 Bb4 Bh2 Bc3 Qh1 Qd2 b1Q+ Qc2 g1B Ba1 Re8 a8N Ka5 Nb6 Ra8 Na4 Qb8 Qg2 Bf2 Nd5 Qg1 Kc4 d3 Kc5 d2 Bd4 d1Q Bb2 Qc3+ Kd6 Qdb3 Nf4 Q3b7 Ba1 Rf8 Ke7 Qe5 Bb2 Nb5+ c7 Bc6 Re1 Bd4 Re3 Be4 Qf1 Bh1 Qg2 Qf3 c8R Nc7 Rd8 Qfb7 Rd6 Qb1 Rb6 Bg1 Ba3 Ba1 Rb2 Bf2 Bc5 Qg1 Ba3 Rd8 Bc5 Rd1 Bd4 Rf1 Re4 Nfe8 Rg6 Qeb5 Bh8 Nef6 Rg7 Bd4 Re3 Qe5
KQRqb1n1/B2n4/1B1R2r1/1kn5/R2q2N1/n2r4/2bNbBr1/2rQbB1r w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 d5 h4 Kd7 f4 Kc6 a4 e5 c4 g5 a5 b5 h5 g3 a6 g4 f5 g2 c5 g3 a7 d3+ Ke3 d2 h6 b3 h7 b4 f6 b2 f7 d4+ Ke2 e3 Kf3 e4+ Kf4 d3 Ke5 b3 Ra6+ Kb5 c6 e2 c7 e1N Rh2 e3 Qe2 d1R Rg6 Bb4 f8B Bd7 Kd5 Be8+ Rd6 Nd7 Nh3 g1R c8R g2 Qc2 e2 Be7 d2 Bf8 Nd3 Nf2 e1R Rh4 Ba5 Rhc4 N3c5 Ng4 Re3 Bg7 Rd3+ Bd4 Rh1 Ra4 g1Q Rdc6 Re1 Rd6 d1B Be3 Be2 Bf2 Rc1 Nd2 b1B Qd1 Rb8 a8Q b2 Qa7 Rb6 Qb7 Bc2 Qb8 Rg3 Bde3 b1N Bd4 Na3 Bde3 Nh6 Bd4 Rg8 h8B Rg6 Bde3 Ng8 Bhd4 Nb7 Bc5 Rg2 Bed4 Rc6 Ba7 Rc3 Bdb6 Re3 Rdc6 Nbc5 Rd6 Ka6 Kc6 Rd3 Bh4 Qd4 Bg3 Q8f6 Kc7 Kb5 Bf2 Na6+ Kb7 Nac5+ Ka8 Qd8 Ne4 Be1 Nd2 Qc3 Nf6 Qb2 Ng4 Qd4
2bQ3K/rNbq4/N1qrn2R/4BNR1/q1bnn1r1/Q2r1qQ1/1Q5n/1B1k4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 a4 f5 e4+ f3 c4 b5 c5 d5 a5 h5 a6 b3 c6 b4 c7 h3 g3 d3 a7 d4 Ne2 h2 Nbc3 d2 Ra5 f2 Bb2 Kf3 g4 d3 g5 f4 g6 h4 g7 h3 Ra6 Rh6 Ra2 Bd6+ Kd5 Qd7 e5 Nc6 e6 Nd8 e7 Ne6 e8N Ne7+ Kc4 Nc6 Kd5 Ncd4 Qa1 d1Q g8Q d2 Bc1 b2 Qg5 b1R Ra3 b3 Ra5 b2 Qg1 Q1a4 Ne4 d1R N2g3 Rd3 Nc5 Rg6 Qa3 Rg4 Na6 Ra1 Rc5 b1N Bb2 Nd2 Nf5 Rd1 Bg2+ Ke2 Be4 f1N Qg3 Be5+ Ned6 f3 Ba1 f2 Qb2 Rf3 Bb1 Rd3 Rb5 Ke1 Rc5 Ne4 Ra5 R1d2 Rb5 Kd1 Rc5 Rb8 a8Q Rb7 Ra5 Ra7 Rb5 Qe8 Nb7 Bd6 Rc5 Qed7 Rb5 Be7+ Ke5 Bd8 Rg1 h1Q Rb6 h2 Rg2 Nf8 Rh6 Nfe6 Rg1 Qf3 Rg2 h1Q Rg1 Qe7 Rg2 Bd7 c8Q Nh2 Qcb8 Ba5 Qd8 f1B Rg1 Bc8 Rg2 N4g5 Rg1 Qc7+ Kf6 Qcd7 Kg6 Bc7 Rg2 Nf7+ Kh7 Nfg5+ Kh8 Ne4 Qf2 Rh4 Rg5 Rg4 Qh4 Rc3 Qg3 Bc4 Qa3 Rcd3 Qb8 Nb5 Be5 Rd6 Na5 Nbd4 Qbb2 Rd3 Nb7 Qhg2 Rg8 Qgc2 Rgg6 Qac6 Rg5 Q2a4
2r3b1/6bq/2Bn2n1/kqnQ1nQQ/N1brb1K1/R3B2N/2N1Rr2/2N2qr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 f5 Kf3 h5 a4 d5 e4 Kd7 c4 Kc6 g4 Kb6 c5+ Ka5 g5 b5 g6 h3 e5 h4 g7 d3 e6 d4 e7 h2 e8Q h3 c6 b3 c7 d2 Qg6 b2 Ra2 d3 Qb3 d1N Qh7 d2 Qc3+ b4 Qc2 b3 Qh5 Nf2 Ne2 d1R Qd3 Qg5 Qg4 Na6 Qc2 Ne7 g8N Bg7 Nd2 b1Q Qh5 b2 Qc4 Ne4 Ra3 Be6 c8N Ng6 Bg2 Nac5 Rb3 Nd6 Re1 h1R Nf1 h2 Nf6 Rd4 Nh7 Rg1 Be3 h1N Qc1 Ng3 Nb6 Raf8 Ra3 Bg8 Bh1 Qh6 Ng5 Qh7 Nh3 Qd3 Bg2 b1B Bh1 Qb3 Qd2+ Qb4 Nc1 Rf6 Qg2 Qb5 Re2 Rf8 Bf2 Rf6 Ne3 Bd3 Nc2 Rf7 Be3 Be4+ Kf2 f3 Bd2+ Ka6 a5 f4 Be3 Ngf5 Qgg5 Rg2+ Kf1 f2 Na4 Rg3 Bf3 Rf8 Bg2 Rc8 Bh1 Rf3 Kg2 f1Q+ Kh2 Rg3 Bg2 f3 Bh1 f2 Bg2 Kb7 a6+ Kc7 Bf3 Rg1 a7 Kb7 Bg2 Ka6 Bh1 Ka5 a8Q+ Na6 Qb7 Nc5 Bg2 Bgd5 Qc6 Rhf8 Qb7 Bg8 Qd5 Nfh4 Kg3 Nhf5+ Kg4 Qe1 Qf6 f1B Qfg5 Rf7 Rd2 Bc4 Re2 Qf1 Qe7 Nfh4 Qc6 Rf2 Qeg5 Nhf5 Qb7 Rh1 Qc6 Bed3+ Be4 Nf4 Bd5 Be4 Qb7 Ng6 Qf7 Ne6 Bc6 Nc5 Qd5 Rg1+
2N1nkq1/bb1BRnq1/q1BN1br1/2r5/K5nq/2rrRQ2/1R4Q1/2B1R2b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 a4 b5 e4 g5 c4 f5 Kc2 f3 Kb3 g3 h4 f4 a5 f2 h5 f3 h6 g4 h7 g2 a6 d3 a7 g3 c5 d2 e5 d4 c6 d3 c7 Bg7 e6 Bb7 c8Q Nc6 e7 Nf6 Qg4 Ne5 Be2 f1Q Ra4 f2 Rh2 Rc8 a8B Nf7 Ra6 Rg8 h8R Qe1 Rb6 f1R Qg6 Rc5 R8h7 Rf3 Nh3 g1B Rh5 g2 Ra6 Qh4 Qe1 d1N Qf1 d2+ Bd3 Ne3 Qg5 d1R Rh7 Neg4 Kb2 b3 Ka3 b2 Nf4 b4+ Ka4 b3 Nd2 b1B Ng6 b2 Bf5 Rfc3 Ne4 Rdd3 Re6 Ba2 Qf3 b1Q Qd2 Qbb6 Qdf2 Bad5 Nd6+ Kd7 Qd2 Ne8 Qg5 Bf6 Re1+ Be6 Rg7 Be3 Rh7 g1Q Rb2 Bed4 Qd2 Qgg3 Qdg2 Qb8 Nf4 Rg6 Nd5 Q8c7 Nb4 Qc8 Nc6 Qe5 Na7 Qcd8 Be4 Bed5 Nac8 Qeg5 Re3 Qgh6 Re1 Qg7 Re3 Nc7 Re1 Qdg8 e8R Be3 Re6 Ne8 Bf5 Bg1 R6e3+ Kd8 Na7 Bf2 Be6 Ke7 Nac8+ Kf8 Bd7 Ba6 Bac6 Bb7 Qf1 Be4 Qd1 Bh1 Qf3 Bg1 Q1g2 Bh2 Nc4 Bb8 N4d6 Ba7 Rh5 Qh2 Rhe5 Qh4 Re7 Qa6+
3N3k/BB3qr1/q4B1r/Q5Rq/b3RK2/1rbqBQnn/2N4p/2nb1R1q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kg7 f4 c5 a4 b5 d4 e5 g4 h5 g5 h3 d5 c3 f5 h4 d6 c2 g6 c4 d7 c3 a5 b3 a6 b2 a7 b4 Be2 h2 Ra2 b3 Qf1 h3 Bd2 c1N Bc4 c2 Qd3 Nf6 Ba5 Rh6 Bb4 Na6 Ra3 Ng4+ Kd2 e3+ Kc3 e2 Kd2 e4 f6+ Kh8 f7 e3+ Kc3 e1Q+ Kd4 e2 Ke4 Nc5+ Kf4 Qf1+ Nf3 e1Q Ba5 Qee8 Qd2 Nf2 Ne5 Bg7 f8B Nce4 Bb6 Ng3 Nc6 Bc3 Bd5 Qa6 Rf1 h1Q Ra4 h2 Na3 b1B Re4 b2 Be3 Bb7 Bfc5 Nh3+ Kg4 Qde7 d8B Rb8 a8Q Q7f7 Ba7 Ba2 Bdg5 b1Q Nd8 Bb3 Qe1 Bc6 g7+ Kg8 Qe2 Bca4 Bf6 Kh7 g8R Qe5 Rg7+ Kh8 Bb7 Qeb5 Ne6 Rg8 Qf2 Qbe8 Rg6+ Rg7 Nd8 Qeb5 Rg5 Qd3 Qf4 Qa2 Nb1 Qa3 Qc7 Qc5 Na3 Bd5 Qac8 Bdb3 Rg6 Nce2 Qf5 c1R Qf3 Rb1 Qa5 Bd1 Nc2 Qcd5 Qc5 Nc1 Qa5 Nf2+ Kf4 Qh5 Rg4 Rb3 Rg5 Nh3+
qbNq3K/2R2n2/QqB2rq1/2n3nB/7r/5bkB/pr1BRbNq/4N2Q w - - 0 1 illegal: No possible last move
3b1R2/2r1rQ2/3p2K1/RqB4B/3bb1qk/nNq2rNq/1Qnn3Q/3N1Qq1 w - - 0 1 illegal: No possible last move
BbQ1R2n/3p2Rb/q1b2N1R/b6b/1r2bn2/1N3rr1/K1kn2bQ/5NBN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Kd6 e4 Kc5 h4 f5 c4 g5 Kc2 b5 Kb3 d3 h5 Kd4 h6 f3 h7 f4 c5 d2 c6 g3 c7 g4 a5 g2 a6 f2 e5 f3 a7 g3 e6 Bd6 e7 Nc6 e8R Ne5 Qc2 d1B Ka2 b3+ Kb2 b4 Qe2 Ng6 Bd2 Nf6 Rh6 Rf8 h8N Rb8 a8N Nh5 Be1 Qf6 Qc2 Bb7 c8Q Bc6 Nc3 Nhf4 Bb5 f1N Qc1 f2 Ra4 Nd2 Qc2 f1B Nf7 Nh8 Na2 Bh5 Nh3 g1R Nc1 g2 Nb6 Qg6 Ka1 b2+ Ka2 Qf6 Qh7 Kc3 Nb3 Qe6 Nf2 b1B+ Ka1 Bbg6 Ka2 Be4 Nd5+ Kc2 Nh1 Rb7 Ne5 Bb8 Nf3 Qg6 Nc1 Rf6 Nh2 b3+ Ka3 b2 Ka2 Rf5 Nb3 Qf6 Bc4 Rb4 Bf2 Qd6 Nf6 b1B+ Ka1 Qd3 Bd5 Qa6 Ba7 Nd3 Ra3 Rf3 Bd4 Nf4 Bc5 Ba4 Ba8 Bc6 Ba7 Bc4 Nf1 B4d5 Qg7 Bh7 Qg3 Bde4 Qh2 Ba2 Nc1 Bad5 Nb3 Rf2 Nc5 Be6 Nb3 Bh3 Ra5 Rf3 Ng3 Rh1 Bc5 g1B Ka2 Be3 Ba7 Rg1 Nh1 Rgg3 Bd4 Bg2 Bb6 Qb7 Rg5 Bg1 Ba7 Bb6 Rg7 Ba5 Bg1 Qa6
q1q5/1n2Rn2/2RrrQ1B/Q1Q2R2/1b2b1nN/1qn1n2K/p5N1/1nRBn1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 b4 Kd6 g4 Ke5 Kg2 Ke4 c4 f5 c5 h5 c6 a5 g5 d5 e3 d3 c7 f3+ Kh2 d4 b5 d2 b6 d3 b7 f2 g6 f4 g7 f3 Na3 h3 Be2 h4 Nc2 a3 Nb4 a2 Ba3 a4 Nc6 Bf5 c8Q Nh6 g8Q Ra6 Bb4 a3 Qg2 Nf7 Qc1 d1Q Qb1 Rh6 Ne5 Qb3 Bf1 Rhd6 Bc3 Nc6 b8R Na5 Be1 Nb7 Qbc1 d2 Ng6 d1N Q8c5 Nc3 Qd2 Qc8 Rc1 a1N Rc2 a2 Qg5 Re6 Qge7 Rd6 Qf6 Be7 Rc1 Nc2 Ne2 Bf8 Nef4 Be7 Be2 f1N+ Kg1 h2+ Kf2 h3 Ng2 Bf8 Bd1 Be7 Rg1 h1Q N6h4 h2 Ra8 Bh7 Ra6 Bg6 Rc6 Bf5 Qe2 Nd2 Kg3 f2 Qa6 Ndb1 Bd2 Ne1 Qaa5 Kd3 Rf1 Be4 Bc2+ Ke2 Kh3 Bg6 e4 Bh7 e5 Be4 Rg1 f1N Bh6 Ne3 Rf1 Bf8 Rf5 Be7 Nf4+ Kf2 Nfg2+ Kg1 Bd1 Rd8 Qd4 Bb4 Qdc5 Rdd6 Qe7 Rf6 e6 Rg6 Qf8 Rf6 e7 Rfe6 e8R Bd3 Qg7 Nbd8 Rc7 Bc2 Qh8 Bd3 Nf4 Qha8 Qf6 h1N Nfg2 Nb7 Rc6 Be4 Re7 Nf2+ Kg3 Nfg4 Kh3 Bd5 Rd7 Bf3 Re7 Be4
1n3bB1/7Q/bNn5/Bp2q1RK/r6b/Qnb1b1b1/bq1R1RR1/1Nkr1B2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 a4 Kd5 f4 Kc4 f5 e5 h5 d5 f6 g5 f7 b5 c3 b3 h6 d3+ Ke3 d4+ Kf2 b2 Kg3 e3 a5 e2 h7 e1B+ Kg2 g3 Kf3 g2 a6 g4+ Ke4 g3 Kf3 e4+ Kf4 e3 a7 e2 Rh4 d2 Rg4 Kd3 c4 Qe7 c5 Qe5+ Kf3 Ne7 c6 Ba6 c7 Nec6 Nh3 g1B c8B g2 Be6 Bg3 Nc3 b1N Qb3 d1Q Bd2 Be3 Rg5 g1B Kg4 Qc1 Kh5 B1f2 Ra2 Qb2 Qa3 Kc2 Nf4 e1B Nfd5 d3 Nb6 Bh4 Bd5 Bfg3 Bc4 Rg8 h8Q Rg6 Qh7 Rd6 Ne2 Rd8 Ba5 Nd2 Nc3 Nb3 Nb1 Kc1 Bd5 d2 Bdc4 Be7 f8R d1B+ Rf3 Be2 Bg8 Bc4 Rf2 Bc3 Rd2 Bf8 Rg2 Rd1 Rf2 Nd7 Rg2 Rd8 a8R Ndb8 Ra7 Be6 Rf7 R8d4 Rff2 Ra4 Qc5 Qa3 Rad2 Qb2 Qce7 Na1 Qb4 Ba2 Qa3 Nb3
3N2R1/r1rk1n2/nQb1rpKQ/rN1q1B2/1B4R1/2r3r1/1nrR1b1R/N3q3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 h5 Kf3 d5 c4 b5 a4 d3 e4 f6 g4 d4 a5 h3 a6 h2 g5 d2 c5 d3 c6 h4 a7 b3 c7 h3 g6 b2 e5 b4 Ke4 b3 e6 f3 Kf5 f2 g7 Rh5+ Kg6 Bc5 e7 Nh6 g8Q+ Kd7 e8N Nf7 Ra3 Bb7 c8R Na6 Ne2 Bc6 Bg2 f1R Qe1 d1Q Bg5 d2 Nd6 Rf2 Nbc3 b1R Nd4 b2 Qg1 Qe1 Qf8 d1N Nc2 Rc1 Na1 b1R Be4 Rb6 Ncb5 Rfc2 Ra4 Nb2 Bd2 Bf2 Nb7 Rc3 Ra2 R1c2 Qh6 Re5 Bf5+ Re6 Na3 Rbb3 Nb5 Ra3 Rb8 Ra5 Ra4 Rg3+ Rg4 Qg8+ Kh5 Qd8 Bb4 Qg8 Rf8 Rc8 a8R Rc7 Nd8 Rgc3 Re4 Qg2 Rg4 Qd5 Kg6 Rg3 Qf1 Rgc3 Rg8 Ra7 Rhg1 h1R R1g2 Rg1 Rh2 Rgg3 Qe2 Rc7 Qee3 Ra7 Qb6 Rc7 Rg2 h2 Rc8 h1R Rh2 Qe2 Ra8 Rhc1 Rb8 Ra7 Ra8 Qe1 Rc8 Ba8 Rc4 Bb7 Rd4 Rc7 Rd2 Bc6 Kh7 Rcc3 Kg6 R1c2
5qNR/3kbbn1/1rp2nq1/1N2r3/b2BR1q1/KQb3b1/3bQQ1b/1Q2B2B w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 h4 g5 d4 b5 Kd2 e5 Kc2 c3 Kb3 e3 a4 g3 f4 e2 a5 e1B f5 e4 a6 g2 f6 g4 a7 c2 d5 g3 f7+ Kd7 d6 c6 h5 e3 h6 e2 h7 Na6 Qd4 Bc3 Qe5 e1B Qe2 Nc7 Qd3 Ne8 Rh4 Rb8 a8Q Ng7 Bd2 c1B Qa3 Be7 f8Q Rb6 Qf2 Nf6 Re4 Qf8 Nf3 g1B Nh2 g2 Ng4 Bh2 Qde2 g1Q Nh6 Qg4 Bg2 Rg8 h8Q Ba6 Be3 Bc1d2 Bd4 Bc8 Qb2 Ba6 Ka2 b3+ Ka3 Bc8 Qa2 b2 Qh7 Ba6 Bh1 b4+ Kb3 Bb5 Na3 Rh8 Ng8 b1B Qh3 B1d3 Qb1 Rh5 Ka2 Ba4 Nb5 b3+ Ka3 b2 Qhf3 Nfe8 Qf7 Rc5 Qb3 Bc4 Ra2 Nf6 Ra1 Bf7 Ra2 Kc8 d7+ Kb8 d8B Kc8 Bc7 Re5+ Bd6 Kd7 Bb4 Be8 Qc1 b1Q Qcd1 Qd3 Qdb1 Bf7 Rc2 Ba1 Rc3 Qc2 Rh3 Bac3 Rh8 Qd3 Rf4 Qh7 Re4 Qhg6 Qf4 Bb2+ Ka2 Beg3 Qff2 Bg5 Bd2 Bc3 Be1 Rc5 Ka3 Bgd2 Qbc4 Rd5+ Qcb4 Rc5 Q4b3 Re5+
8/b1Q1R1q1/p1nR1B2/4N1nK/2Bbk3/r1R1Nb2/rb3r1b/1bQRbQ1q w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Kg6 c4 Kf5 f4 d5 b4 g5 h5 e5 c5 a3 b5 d3+ Ke3 a2 c6 d4+ Kf2 e3+ Kg3 e2 h6 e1B+ Kh2 d2 h7 d3 b6 g3+ Kh3 g2 b7 g4+ Kh2 e4 c7 g3+ Kh3 e3 Qc2 d1Q Qc5+ Ke4+ f5 e2 Kg4 d2 Qb6 Bf2 Qa6 e1B+ Be2 Nc6 b8R Nh6+ Kh5 Qe7 f6 Bd4 f7 Bf5 c8Q Bfg7 f8R Nf7 Re8 Ng5 Rh3 Rf8 Nf3 g1B h8Q g2 Bc4 Bh2 Qc7 g1B Na3 Bgf2 Rab1 a1R Rbd8 Ra2 Nc2 Bb2 Rd5 Bgd4 Ne3 Rf6 Rg3 Bh3 Qg8 Bg2 Rd6 Qe5 Re7 Rff8 Be6 Qg7 Qf1 Rf4 Qgc8 Rf8 Ng4 Bfe3 Nfe5 Rf2 Bg8 Qf3 Bb3 d1B Bc4 Bc2 Bd2 Bd3 Rd1 Bb1 Bb4 a6 Bd2 Rb8 Bc3 Rb3 Rh3 Ba7 Rg3 Bed4 Rh3 Qff6 Rhd3 Rba3 Ne3 Bc1 Ba1 Bcb2 Rc3 Qe6 Q8b7 Qd5 Qb3 Kf4 Qc2 Qe4 Qc1 Qd5 Rc2 Ke4 Rc3 Bdc5 N3g4 Kf5 Qh1 Qd3 Nd7 Qf1 Rb3 Bbe5 Ne3+ Ke4 Qg1 Rf6 Qf2 Qh1 Qf1 Rff2 Rbd3 Rb3 Bc3 Ba3 Bd4 Bb2 Rc3 Rba3 Be6 Beg3 Bf6 Bf4 Bc4+ Be5 Be6 Bed4 Ne5 Rf5 Bf7 Rf2 Bc4 Bf3+
2q2qQ1/2r1bp2/1r3n2/rrB3N1/2N3kr/R2n1RNr/NqrQb1BK/1B6 w - - 0 1 illegal: No possible last move
1Nb3qn/3p1nB1/Q1R2N2/BnQ1rB1B/qR4nr/8/1b1nnKN1/k4nr1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 Ke7 a4 Kd6 c4 Ke5 e4 g5 a5 b5 h5 f5 c5 b3 h6 f3 a6 b4 h7 f4 a7 d3 c6 Kd4 e5 g3 e6 b2 c7 f2+ Kd2 g4 e7 b3 e8Q f3 Ra2 g2 Rh2 g3 Rh3 Nh6 Ra1 Ba3 Qe7 Qg8 Qg5 Nf7 Qg6 Nc6 Be2 f1N+ Ke1 Ncd8 Bd2 Ne3 Qc1 Ng4 Nc3 b1N Nd5 b2 Rh4 Nc3 Nh3 g1N Nf6 b1N Nf4 Bb2 Ng2 Nb5 Ba5 d2+ Kf1 Rb8 a8B f2 Be4 Rb7 B2f3 Ne2 Bf5 Rb6 Ra3 Re6 Rc3 Re5 Rc6 d1Q+ Ne1 Qd3 Ng2 Qc4 Qgh6 Qa4 Qcg5 Ba6 c8N Bb7 Ne7 Bc8 Rd6+ Kc4 Nc6 Kb3 Nb8 Ka2 Rc6 Ka1 Qe3 Qf4 Qc5 Qa4 Ne1 Nd2+ Kg2 Nh2 Rb4 f1N Bh5 Ng4 Qg6 Nc4 Kf3 g2 Qh6 g1R Ng2 Ngh2+ Kf2 Ncd2 Qhf8 Ne6 Qa7 N6f4 Qfc5 Ng6 Qb7 Qg7 Qa6 Ng4+ Ke1 Rhe8 h8B Qg8 Bg7 Ngh8 Bf8 Re4 Bh6 R8e5 Bg7 Nge3 Kf2 Rf4+ Bf3 Rh4 Bh5 Ng4+
1b4q1/5B2/nk2rRQ1/5nBr/1b1rb1R1/Kb1n4/Bn2pNn1/1QBR1bN1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 g4 b5 f4 d5 a4 Kd7 c4 Kc6 Kc2 e5 Kb2 h3 a5 b3 f5 d3 c5 e3 g5 d4 a6 d2 f6 h2 g6 e4 f7 b4 a7 e2 g7 e1B Qg4 d3 Ra5 d1N+ Ka1 e3 Nc3 b2+ Ka2 b1R Qh4 d2 Nf3 e2 Qc4 b3+ Ka3 h4 Ng1 b2 Qg4 h3 Kb4 Rh5 Qg3 Be6 Qe5 Na6+ Ka4 Ne7 g8Q Ne3 Nd1 N7f5 Ka3 Bg3 Qb8 Bb3 Nf2 d1N Ra4 Ng2 Rg4 Qd5 Qb4 Rd8 a8R Bb8 Qg6+ Qe6 Ra7 Rd4 Bg5 Bfd6 f8B Qg8 Rf7 Rc1 Bfe7 b1B Rf6 Be4 Bf8 Rc3 Bfh6 Nb2 Bc1 Re3 Bg5 Kc7 c6 Bf8 Qe7+ Kb6 c7+ Bc6 c8B Re6 Bd7 Bcd5 Bb5 Be4 Qb4 Be7 Nf3 Bf8 Rg1 h1N Be8+ Kc7 Bf7 h2 Nh3 Nf2 Rh1 Nfh4 Nfg1 Nfd3 Nf2 Kc6 Rgf4 Nf5 Rg4 Nge1 Bh3 Ng2 Nf3 Bfd6 Rd1 h1B Ng1 Bh2 Qc4+ Kb6 Qc2 Bhf4 Qb1 Bd2 Be8 Ngh4 Bf7 Bhg2 Qc2 Bf1 Qb1 Bed5 Bg2 Bb7 Bd5 Ng2 Bc4 Be4 Bd5 Ba4 Ba2 Bb3 Qa1 Bc3 Qb1 Bb4+
R7/2nK1Q1N/1Rq2r1b/rbN5/2nk1nB1/bn1rn3/Q2q2pN/2nQB1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
2Rq3n/4R2b/K2N1qr1/4Q2Q/r3b2p/bnQ1r1BB/1nBbb2B/1b2N2k w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 Kg4 c5 Kg3 a5 b5 f5 h5 c6 e5 c7 d5 a6 e3 Kd3 e2 f6 e1B f7 e4+ Kc2 d3+ Kb3 d2 a7 d4 Be2 d3 Nf3 h3 Qc2 d1B Bb2 d2 Nd4 e3 Ne6 h4 Ra2 h2 Nc3 Nc6 Bc4 e2 Nf4 Nge7 Nd3 Bf5 c8B Be4 Bh3 Rc8 a8Q Rg8 Ra7 Ng6 Re7 Nh8 Qa1 Rg6 Bce6 Rc7 Bef5 Rc8 Rf1 h1Q Rf3+ Kh2 g4 Rc7 g5 Qf1 Rf2+ Kh1 Rf4 Bf2 Ne1 Be3 Rf3 Bf4 Rd3 Be3 Rd4 Qf4 Rc4 Qe5 Qa5 Rc8 Qc7 Qf6 Qe5 Bf4 Rb7 Be7 f8B Bc5 Bd6 Nd4+ Ka2 Be3 Re7 Rc7 Ba3 b3+ Kb2 b4 Nb5 Rc8 Qc3 Bf4 Bc7 Be3 Nd6 Bf4 Ka1 b2+ Ka2 b1B+ Kb2 b3 Bb8 Bb7 Bc2 Be4 Bb4 Rc6 Ka3 b2 Ka4 Nb3 Kb5 Rc7 Ba5 Ba3 Ka6 Rc8 Bac7 Be3 Nd3 e1R Rc6 Re2 Ne1 Bf4 Rc4 Re3 Rc5 Be2+ Rc4 Rh6 g6 d1N g7 Rg6 g8Q Bg5 Qf7 Bf4 Bd3 Bc2 Qh7 b1B Qhh5 Nb2 Bb6 Reg3 Bg1 Bd2 Bh2 Re3 Bc7 Rb8 Rc5 Rb4 Bb8 Rc4 Rc8 Rg7 Bc7 Bh7 Bg6 Be4 Bgf5 Rg6 Bb8 Bc6 Bc2 Be4 Ba7 Rf3 Bf2 Re3 Bfg3 Ra4#
4Q1qq/3N2nn/2BR2K1/r1R1BQ1Q/3p1r1b/b2rbQ2/b1bbN1n1/k5N1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 e5 c4 b5 a4 g5 f5 d5 h5 g3 h6 g2 h7 d3+ Ke3 g4 a5 g3 a6 d2 a7 b3 c5 b4 c6 b2 c7 b3 Rh3 Nc6 Bc4 Ba3 Rh5 Nd4 Qe1 d1R Ne2 g1B+ Qf2 g2 Rh2 Ne6 Bd3 Ng7 Ng3 Be6 Bc2 Rd3+ Ke2 e3 Kf3 e4+ Kf4 e2 c8N e1B Nd2 b1Q Rh3 e3 Ra2 b2 Rh1 e2 Nf3 Qa1 Rh5 b1B Ba4 Bc2 Bc6 Bd2+ Kg4 e1N Ne2 Bh2 Nfg1 Ke5 Qf3 Bg3 Nb6 Bh4 Rg5 Qc3 Bb2 Qc8 Ra1 Qd8 Rd1 Nf6+ Kh3 Rg8 h8Q Nh7 Kg4 Rf8 Ba1 Rf6 Qe8 Qb8 Qh5 Qg8 Bb2 Kd6 Ba1 Kc5 Nd7+ Kb4 Bb2 Kb3 Ba1 Raf8 a8Q Ka2 Qae8 Bf7 Bb2 Re6 f6 Re5 Ba1 Rf5 Bb2 Be6 f7 Qf6 Be5 d4 Rb1 Qd8 Rb5 Ka1 Rg6 Ba2 Rd6 Qf6 Rc5 Qh6 Qe7 Ra8 f8Q Ra5 Qee8 Qf6 Nh3 g1B Qff7 Bge3 Nhg1 Qd8 Qfe6 Rf6 Qef5 Ng2 Qhg5 Ne6 Kh5 Rf7 Qh6 Ng7+ Kg6 Qc8 Qhh5 Qa8 Qf5g4 Rf4 Qgf5 Qh8 Qef7 Qaf8 Qe8 Qfg8
r3R1q1/1NB3r1/q1Q3br/b6r/Q2pn3/R3NQ1B/1k2nr2/2rKRRnb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 c4 d3 g4 Ke7 a4 Kf6 e4 Ke5 g5 Kd4 e5 d5 g6 f5 g7 b5 a5 h5 c5 b3 c6 f3 e6 f2+ Kd2 f4 a6 f3 c7 h3 a7 h2 e7 b2 e8R h4 Be2 f1R Ra6 b4 Qa4 h3 Rd6 f2 Rc6 Nf6 g8Q Rh6 Qg3 Nbd7 Qa6 b3 Qa4+ Bb4+ Nc3 b1R Qg6 b2 Qd1 Rb8 a8R Ne5 Qg3 Bf5 Re7 Qg8 Raa6 Ra8 Rab6 Ba5 c8Q Ra1 Rc5 b1R Rb8 Rb7 Qc6 Bg6 Rbe8 Rc7 Re6 Rg7 Bg4 Ra2+ Bb2 Nf3+ Kc1 Re1 Rb5 f1Q Rb3 Re5 Ra3 Reh5 Re2 Ne4 Na4+ Bc3 Nc5 d2+ Kc2 Kc4 Be6 Ba5 Nb7+ Kb4 Ree3 Qa6 Ne2 d4 Rf1 h1N Nc3 h2 Bh3 Ng1 Qgf3 Nhg3 Ree1 Ra1 Bc1 h1B Qde2 d1R Bf4 Rd3 Nd1 Ra2+ Kc1 Rc3+ Qc2 Rcc5 Ne3 Rc4 Kd1 Rc3 Qd3 Rf2 Qc2 N3e2 Bc7 Rcc5 Ra2 Rc4 Q2a4+ Kc3 Ra1 Kb2 Ra3 Rc1+
1B1nK2R/4BRRq/3r2r1/N2B3R/rp1Q1nrN/k1qn1r2/2qQbb2/1r6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 Kg3 f2 a6 f4+ Kg2 f3+ Kg3 b3 h7 Kb4 a7 d3 e5 d2 e6 d4 c5 d3 e7 b2 e8Q Qc7+ Qe5 Nf6 c6 Nd5 Rh5 Bc5 Ne2 Rd8 h8B Qh7 c7 Nc6 Rh2 Nf4 Rh6 Rd6 Re6 Nd8 Nd4 Ba6 Na3 b1R Bg2 f1Q c8R f2 Bd5 Qe1 Nf3 Bb6 Qc2 d1Q Bf6 Qc3 Re7 f1R Rg7 d2 Be7 Rf2 Qa2 Qdc2 Rc5 d1N Nc4 Nb2 Qd4 Nbd3 Ba3+ Ka4 Nh4 b4 Na5 Qc1 Qd2 Rf3+ Kh2 Q1c2 Bc1+ Qa3 Ra2 Bb5 Rb2 Qac3 Rc7 Ka3 Rc5 Rc8 a8R Rc7 Rc8 Ra7 Rb8 Nde6 Rh8 Nd8 Nb7 Ra4 Na5 Nh5 Rc7 g3+ Kh3 g2+ Kg4 Nhf4 Rf7 Nc5 Rb7 Be2 Ra7 Ncd3 Rg7 Qh6 Kf5 g4 Rc7 Qh7+ Kg5 Rd7 Kf6 g1R Ra7 g3 Rc7 Nc6 Kf7 g2 Ke8 Nd8 Qe1 Nc6 Ng6 Bd1 Bd8 Q2b3 Qdf2 Nh3 Bf4 Bc5 Re2 Qbc2 Re5 Be2 Qd2 Be3 Bh4 Nd8 Rh5 Ba7 Be5 Nhf4 Bg5 Bb6 Nh4 Ba7 Rb7 Be3 Bb8 Rd6 Rbf7 Ba7 Qd4 Bc5 Qe5 Bf2 Ba8 Rgd1 Be7 g1R Qd4 Rgg6 Bc6 Rdg1 Bd5 R1g4
1n1b4/1B1R3K/qn5Q/k1b2B2/pq2b1Nn/2nrr1n1/4NBRn/1N2Q1Nq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 Kd7 e4 Kc7 b4 Kb6 g4 a5 g5 f5 e5 f3 b5 h3 g6 f4 g7 f2 e6 h2 e7 h4 e8B f3 Qb3 a3 Bh6 h3 Bf7 a2 Qc2 a4 c5+ Ka5 b6 Ne7 g8N Bf5+ Kd2 d3 Ke3 d2 Kf4 d1N Kg5 d4 c6 d3 b7 d2 c7 Ne3 c8Q d1N Bg2 f1Q Qe2 f2 Be4 Ng2 Qd2+ Nc3 Bh5 Qd6 Bg6 Qfa6 Nf6 f1N Qc6 Nc8 Qe1 Qb4 Ng4 Nh4 Kh5 Rg8 Be3 Bc5 Kh6 Rd8 Bf2 Nb6 Kh7 Rd3 Bd5 Be4 Bf5 Ra7 Qh6 Ra8 Nf3 Ra7 Rg1 h1N Rg2 h2 Ng1 Nhg3 Bc6 h1Q Bd5 N8d7 b8N Nh2 Bb7 Ra8 Nd2 Re3 Rd1 a1B Nb1 Bb2 Rd6 Rd3 Rd4 Bc1 Rd5 Bg5 Rd4 Bd8 Nc6+ Kb5 Rd6 Nb8 Nd4+ Ka5 Nde2 Re3 Rd7 Ra7 Bd5 Rc7 Ba8 Rc6 Bb7 Rd6 Bc8 Rd5 Bb7 Rdd3
r2b2BB/1Rb1b1Kn/5RQQ/1p1rb3/q1b2NQ1/1Bnq1qN1/1r6/B2bk3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 b3 a7 e2 h6 e1B f6 b2 h7 g4 f7 g2 c3 e4+ Kc2 d3+ Kb3 e3 c4+ Kd4 c5 d5 c6 e2 c7 g3 Na3 b1R+ Bb2+ Ke3 Nf3 Kf2 Nd2 g1B Kc3 d4+ Kb3 g2 Rh2 Na6 Nc2 Nc5+ Kb4 Nf6 Ra6 Be7 f8Q Be6 c8Q Bc4 Ne3 Ne4+ Rd6 Rg8 h8B Rg5 Qc6 Rd5 Rh7 Bh2 Qh6 g1Q Ng2 Qh1 Nf4 Nc3 Qa6 Qf3 Ne4+ Ke3 Ng3 Kf2 Bh3 d2 Be6 d3 Bg8 Qd7 Rg7 Nh7 Qda4 Bd8 Rf6 d1B Qc6 Qdg4 Rb7 d2 Qe6 Qg6 Qg4 Qgd3 Qgg6 Bdb3 Ba1 d1Q Nf5 Rb2 Ng3 Rd7 Kc5 Rd5+ Kc6 Bd2 Qb4 e1B Qa4 Be3 Qb4 Beb6 Qa4 Rb8 a8B Bbc7 Qb4 Bd2 Qa4 Ke1 Qb4 Bd6 Kd7 B6e7+ Ke6 Be3 Kf7 Beb6 Kg7 Bbc7 Qd6 Ba4 Qd7 Qb3 Qdg4 Qb4 Ra7 Bd1 Bc6 Qa5 Rb7 Ra8 Bd7 Qa4 Bf5 Qde3 Bc2 Qd3 Bb3 Bg1 Be6 Bd4 Bg8 Bde5
1n6/Nrk1B3/2bq3p/2n4B/3b4/Q1qbNR1b/QqR1rKB1/NNrb1b2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 g4 f5 a4 d5 e4 Kd7 c4 b5 c5 f3 c6+ Kc7 g5 d3 a5 b3 e5 f4 g6 f2+ Kd2 b2 e6 h3 g7 d4 e7 f3 e8B h6 a6 h2 a7 b4 Nh3 b3 Qc2 Qd6 Ng5 Bh3 Qc3 Rh7 Ra4 Nf6 g8Q Bg7 Ne4 Nfd7 Na3 b1Q Bg2 f1B Ke1 b2 Qa2 d2+ Kf2 d1R Bg5 d3 Nc5 d2 Rc4 Re1 Be7 d1B Nb3 Nc5 Bh5 Qbd3 Na1 b1Q Qb4 Bb2 Rc2 Qc3 Qa4 Bb5 Rf1 h1B Qb4 Qc1 Nb1 Bd3 Qba4 Nbd7 Q4a3 Rc8 Bf8 Nb8 a8N+ Kd8 Nb6 Rb7 Be7+ Kc7 Nb3 Ba1 Nc4 Q1b2 Ne3 Rf8 Be8 Rf4 Bf7 Rc4 Bh5 Qg7 Re2 Rc1 Rd2 Qgc3 Rc2 Kb6 c7 Kc6 c8N Kd7 Rg1 Kc7 Bf1 B1g2 Na7 Bh1 Rg4 B1g2 Rf4 Bh1 Kg3 f2 Bg2 f1B Kf2 Bd7 Bh3 Bhc6 Bg2 Bh3 Rf3 Qg7 Qb4 Qa3 Rf7 Bf6 Na1 Qb2 Qba4 Bc3 Rf3 Qgd4 Qe6 Qc4 Qg8 Bd4 Qa3 Qcc3 Qga2 Re2+
r2n3R/1b1N1p2/q2kN3/2r2Qq1/1N3bb1/1KrBbn2/1R1b1R1Q/B2b1n1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 b5 e4 g5 c4 d5 Kc2 f3 h4 f2 c5 d3+ Kb3 g3 e5 g2 c6 d4 h5 d2 c7 g4 a5 g3 e6 d3 h6 Nc6 h7 Kd6 e7 Bb7 c8R Bh6 e8Q Ne5 a6 Qg5 a7 Ne7 Ra6+ N7c6 Qc2 d1B Bb2 d2 Rh3 Bg4 Ne2 d1B Nec3 g1B Rh5 g2 Ra5 Nd8 Bc4 f1N Nd2 Nf3 Rb8 Be3 Ra2 g1B Qe4 Bf4 Rh1 Bge3 Bd3 Re8 h8R Re5 Ba1 Rc5 Kb2 b3 Qf5 b4 Nde4+ Kc7 Nf6 Kd6 Nd7 Bd2 Kb1 b2 Nd5 Bde3 Qh2 Rc2 Ra3 Rc5 Ka2 b1R Rc3 Rc1 Rc2 b3+ Ka3 b2 Rf2 b1Q Nb4 R1c2 Ka4 Qc1 Kb3 Be4 Rb7 Qd2 Rb5 Qe2 Rb8 Bg7 Rb7 Bc3 Rb5 Bcd2 Rb7 Rb8 a8N Bc6 Nc7 Ra8 Ne6 Be4 Ra7 Bc6 Ra2 Bb7 Ba6 Qb5 Rb2 Qb6 Bb5 Qa6 Bd3 R2c3#
3R3n/2pn4/7N/QNq2QKN/1b4B1/2nrnn2/b2nr2B/bqQRQr1k w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 g4 Kd5 a4 f5 d4 h5 a5 b5 g5 b3 g6 h3 e3 b2 a6 h4 g7 h2 a7 h3 Ra6 c3 Ra5 c2 Ra2 b4 Ra6 b3 Rf6 Ne7 g8N Ng6 Qe1 Qd6 Qc3 Be6 Nd2 b1N Ne2 b2 Rg1 h1Q+ Rg2 h2 Qa3 Rh3+ Ng3 Nc3 Nc4 b1N Be2 Nh8 Nh6 Qd1 Qa1 h1R Na3 Re1 Bd2 c1B Nb5 Bb2 Rg1 Qe7 Qa3 Ba1 Qb2 Qb3 Qc1 Bg8 Rg6 Qe5 Re6 Bb4 Re8 Qe7 Rh1 Qc5 Rf1 Rd1 Rc8 Rh2 Nh5 Rh1 Be1 Rd3 Bg3 Qb2 Bh2 Bf7 Kg2 Ke4 Kh3 f3 Kh4 f2 d5 f4 d6 f3 d7 Ba2 Rd1 f1N d8Q f2 Qg5 Nd7 Bg4 Qc2 Rf8 Re8 Qf6 Re5 Rd8 Re8 Bf5+ Kf3 a8Q+ Re4+ Bg4+ Kg2 Qa5 Rg1 Qf5 Kh1 Kg5 Re8 e4 Re7 e5 Nbd2 e6 Nf3+ Kf4 Qb1 Re1 Re8 e7 N1d2 Rf1 Bb2 Re1 f1N Rd1 Ba1 Rb8 Rc8 e8Q Rd8 Qee6 Re8 Qe1 Re2 Ra8 Ne3 Rd8 Nfe5 Kg5 Rf1 Qa8+ Ned5 Qa4 Ne3 Qa5 Nef3+
q3B2R/1Q2qrQn/3qbQ1K/2k3bN/r2R3r/3p2R1/3q1r2/R1NqBrn1 w - - 0 1 illegal: No possible last move, all moves rejected
Q4R2/q2nn1k1/BBbb2b1/RNQq2N1/1prrQ3/bK2bqR1/1Q2q3/7q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 Kf7 c4 g5 Kc2 b5 a4 b3+ Kb2 d3 c5 g3 h5 g4 h6 g2 h7 f3 a5 d4 c6 d2 e5 d3 a6 g3 e6+ Kg7 e7 f2 e8R f4 a7 f3 c7 Bd6 Qc2 d1Q Kc3 b2 Rh4 d2 Ne2 g1B Rf4 g2 Rc4 Qe7 Rc5 Bd7 c8Q Bc6 Ra6 Nd7 Qb7 Rc8 Nd4 Qde2 a8Q d1Q Nd2 b1B Qb2 Bg6 Ne4 Rc7 Nb3 Qd5 Ng5 Bgh2 Rb6 g1B Be3 Bhf4 Qc2 b4+ Kb2 Qef7 Nd4 Ne7 Ra5 Rf8 Rb8 Rd8 Nb5 Rcc8 Bc5 Bd2 Qc4 Bc1+ Kb3 Ba3 Rba6 Rc7 Ba7 Rcc8 Qb6 Rc7 Qc5 Rcc8 Bb6 Rc7 Bg2 f1Q Ra7 Qfe1 Bf1 Be3 R7a6 f2 Ra7 Rh8 Rf8 Qff3 Rb7 Qa1 Rbb8 Qh1 Rf3 Rd8 Rg3 Qef3 Bd3 f1Q Rc8 Qde5 Qe4 Q1e2 Bc4 Qd5 Rb8 Rf8 Rd8 Rf4 Rc8 Kh6 Rf8 Qg7 h8Q+ Qh7 Qc2 Rd4 Qe5 Qhf7 Qee4 Kg7 Qb2 Qg8 Rf6 Qb8 Rf8 Qa7 Nc3 Rc8 Qb5 Bb7 Qc6 Qe5 Ba6 Qd5+ Qc4 Rc5 Nb5 Bc6 Qe6 Qdf5 Qe4 Qe6 Qcd5 Rc4 Qc5 Qd5
bR6/B2kq1qn/2rbbR2/KpbbQ3/3N4/q7/1RBNq2q/n1rR2QQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 g5 c4 b5 a4 f3 c5 b3 c6 d3 Kc3 b2 e5 d4+ Kb3 f4 h5 f2 c7 f3 h6 g3 h7 g4 e6 d2 e7 g2 Kb4 g3 a5 d3 a6 Nc6+ Ka3 Nf6 a7 Kd7 Qe1 d1Q Be3 d2 Bh6 Nd4 Kb4 Qa4+ Kc3 d1Q e8R Qe7 Qe3 Nc2 Ra2 Qe2 Qe5 Na1 Bc1 Qaa3+ Kd4 Bb7 c8R Bd5 Rc3 Rc8 a8Q Rc6 Nd2 b1Q Rb2 Qg6 Rb8 Qgg7 Qg5 Rg8 h8Q Nh7+ Qe5 Be6 Rd3 Bd5 Rh6 Be6 Rf6 Bd5 Nh3 g1Q Nf4 g2 Ne6 Qh2 Qa6 g1B Qb6 Qd8 Bh3 Bd6 Bf5 Qde7 Bg6 Rgc8 Qc5 Qa6 Kc3 f1B Kb4 f2 Nd4 Bh3 Be4 f1B Bg6 Qb7 Ka5 Bhe6 Qb6 Bfg2 Be4 Ng5 Qh3 Qc7 Bh7 Qg3 Qh1 Bf2 Bf5 Nh7 N4b3 Rc4 Nf3 Qc5 Bg5 Rc1 Be3 Qh2 Rd1 Bc6 Nfd2 Ba8 Bc2 Bgd5 Bd4 Bg1 Bf2 Qce3 Qbd4 Q3f3 Qg4 Rc4 Ba7 Rc6 Qgg5 Bgc5 Qgg1 Qfg3 Nd4 Qa3+
2b1BR2/1pB1QK2/r2B1rn1/n1rrb3/5r2/2R2nQn/n1Nq1R2/2qRN2k w - - 0 1 illegal: No possible last move, all moves rejected
B2Qnk2/n2K2bQ/1R3b1B/q1N5/RqBnr3/3n3r/3qbp1R/1N1b1n1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 d3 c5 b3 a5 b2 c6 g3+ Kf3 b4 e5 g4+ Kg2 b3 a6 d4 c7 d2 e6 d3 e7 Nc6 h5 Bg7 h6 Nf6 h7 Na7 Rh2 f3+ Kh1 f2 Kg2 f4 Ra5 f3+ Kh1 Qd4 Bh3 f1N Qe1 d1N Ra3 d2 Nc3 b1Q Ne4 b2 Ra4 Qa2 Nc5 b1Q Ne2 Qbb4 Nc3 Nb2 Nb1 d1B Bh6 Qdd2 Qe4 g2+ Kg1 Be2 Kf2 g1N Qc2 Kf7 e8R Qa1 Re7+ Kf8 Re6 Ne8 Rb6 Be6 c8Q Bb3 Qe4 Bbd1 Qd8 Rc8 Qg6 Rc7 Qh5 Re7 Qh4 Re4 Rh1 Nh2 Kg3 Nd3 Bf1 f2 Qh3 Ngf3 Qh5 Nd4 Kh4 Qe1 Kg5 g3 Kg6 g2 Qhh4 Nc8 a7 g1B a8B Qed2 Qh5 Na7 Qhh4 Rg8 h8R Qaa2 Rh7 Rh8 Qh3 Nhf3 Qh5 Bh2 Qh3 Be5 Qhd7 Nb3 Kf5 Nh2 Ke6 Qa1 Q7c7 Nd4+ Kd7 Bf6 Qb7 Bh5 Be2 Nf1 Qbc7 Nf4 Bc4 Bhe2 Bg5 Qac3 R7h2 Rh3 Bh6 Nd3 Qb7 Qa5 Qbc7 Qcb4 Qb7 Rg4 Qe4 Rf4 Qh7 Re4
6N1/nB2n1R1/Q1q5/8/RBbbrbnr/1Nqn2br/1Q1pN2k/KRbN4 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kf6 f4 Kf5 a4 b5 c4 d5 Kc2 e5 Kb2 g5 c5 e3 a5 g3 a6 g2 a7 e4 h5 g4 c6 b3 c7 e2 h6 e1B h7 e3 Ra3 e2 Nf3 g1B Ka1 b2+ Ka2 d3 Ne5 d2 Nc6 g3 Rf3 Kg4 f5 d4 f6 g2 f7 d3 Nd4 b4 Qa4 d1N Na3 b1R Rf2 Kg3 Bh6 d2 Rh2 Qd7 Qb3+ Ne3 Rf6 Ba6 c8Q Qc6 Nab5 Ne7 Qb2 Ng4 Rh1 Be3 Rg6 g1B Rg7 Bf4 Nb3 Bd4 Nc3 Bc4 Bg2 Rc1 Rg1 Kh2 Nd1 Beg3 Qa6 Rc3 Ka1 e1N Bd5 Nd3 Be4 Qb6 Bb7 Nbc6 Bg5 Rb8 a8R Na7 Bf6 Qe6 Be5 Qc6 Bd6 Re8 Bc5 Nd5 Re1 B8d6 f8N Re4 Nd7 Ne7 Nf6 B6e5 Ng8 Bd6 Nc1 b3 Bb4 Nf5 Ba5 Ba3 Bb4 Ne7 Nf6 Rb8 h8N Rd8 Ng6 Rh8 Ng8 Rh4 Ne2 Nac8 Ne5 Na7 Qb1 Bc1 Nd7 Rh5 Qba2 Rh4 Nc5 b2+ Kb1 Bgf2 Rg5 Nb5 Nb3 Nc5 Qa7 Rch3 Ne3 B2g3 Rg7 Nd3 Q2a3 Nde5 Qb6 Nd3 Ra4 Na7 Qa6 Bb6 Kc2 b1Q+ Kc3 Qa1+ Kc2 Qe5 Kb1 Qc3 Qb2 Bd4 Ka1 Qc2 Qc3 Ba3 Rb1 Bc1 Qb2 Qc3 Nd1 Bf7 Qb5 Bd5 Qa6 Bc4
1r2R2n/q1rbR3/qn1nnB1b/B1Q4B/1N1B3q/7b/2p1K3/1qknQR1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 d4 Ke7 e4 Kf6 h4 c5 a4 g5 a5 b5 a6 f3 a7 g3 h5 b3 d5 Ke5 h6 f5 h7 b4 d6 f2+ Kd2 Kd4 d7 g2 e5 f4 e6 f3 e7 b2 e8Q b3 Rh2 g4 Rh5 g3 Qee2 Nh6 Qee1 Qh4 d8B Nd7 Na3 b1Q Qe7 b2 Rg5 Nf5 Rh5 Nb6 Bd3 f1B Ra2 c3+ Ke1 c4 Rh6 c2 Ra1 Kc3 Nh3 g1Q Qe8 g2+ Nf2 Rb8 a8R Nd6 Bg6 Bd7 Rh5 Bh6 Be3 c1N Raa5 Ne2 Bc7 Nd4 Raf5 Ne6 Qf7 Rhc8 Bd8 Rc7 Qe7 Qa2 Bc5 b1Q Re5 Kb2 h8B c3 Nc2 Qa6 Nb4 c2 Be3 Ng5 Bc5 Ngf7 Bf6 Nh8 Rhg5 Nbc8 Rg3 Nb6 Nh1 Qgd4 Be8 g1N Bh5 Nh3 Qf8 Nf4 Re8 Ne6 Qe7 Qf4 Rg7 Bh3 Qf8 Qg4 Rge7 Qg5 Qg8 Qf4 Qg5 Qg4 Qd5 Qg5 Qc4 f2+ Ke2 f1N Qe1 Qh4 Qb5 Ne3 Qc4 Qc3 Bcd4 Nd1 Qb5 Qa7 Qe5 Kc1 Qc5 Rc6 Bc7 Qca3 Bd8 Na4 Ba5 Nb6 Ra2 Qa4 Ra3 Rc7 Rf3 Qc6 Rf4 Qcb7 Rf1 Qba6+
r2Q2Kb/1N2N3/nb2R2r/1N3qkr/rBR2q2/q2B1nr1/bRpQ4/3N1b2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 g4 b5 a4 h5 d4 h3 d5 c3 d6 b3 Kd5 b2 e4 b4 e5+ Kg5 e6 f5 a5 b3 a6 c2 d7 h4 e7 c4 Ke6 h2 Kf7 c3 e8R h3 a7 Rh6 Bd3 Bg7 Bd2 c1B Re3 f3 Re6+ f4 Re1 f2 Rf1 Qa5 d8Q+ Nf6 Be3 Be6+ Ke7 Qa3+ Bc5 f3 Ra2 Bh8 Kf8 Be3 Nd2 b1R Nc4 b2 Na5 Ra1 Bb4 b1Q Nb7 Na6 Re1 f1Q Rb2 f2 Qd2 Ba2 Ne2 c2 Nc3 Qc1 Rg1 h1R Nd1 h2 Rg3 Rh5 Rh3 Rg1 Rh4 h1R Re2 Bf4 Re6 Rg3 Kf7 Be3 Kf8 Kf4 g5+ Ng4 g6 Qh3 g7 f1B g8N Rh2 Qe2 Bb6 Ne7 Kg5 Kg8 Ne5 Rc4 Qf5 Qe1 Qcf4 Qd2 Rc8 a8N Nf3 Nc7 Ra8 Nb5 Rh1 Rc5 Rh6 Rc4 R1h5 Nf2 Re1 Nd1 Re5 N5d6 Ra5 Nb5 Ra4
1Qn5/1rB5/1N1QbR1r/4KR2/RqbN4/2b3pr/1Nq1B1rk/2nnbR1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 c6 b2 c7 b4 Qb3 d1N Qa4 d3 Be2 d2 Ba6 b3 Be2 Nd7 Ba6 g4+ Ke2 f3+ Kd3 Kf4 Kd4 Kg3 e5 f2 e6 f1B e7 f4 e8R f3 Rh2 f2 Bc4 Qh4 Ra3 Ne7 Rd8 Bg7+ Ke4 Ne5 Bb5 Bc4 Rf8 f1R Nf3 g1B Re2 Bf2 Re1 B8e6 c8N Rh1 Nc3 b1R Nb6 b2 Nd4 Nd3 Qa6 Kh2 Ra5 Nc8 Rf1 Be1 Nca4 g3+ R8f4 Rb8 a8R Rb7 Ra7 Qe7 Rf6 Qb4 Ra8 Ra1 Ra7 b1R Nb2 Ra2 Ra4 Rb8 Raf7 Rb7 R6f5 Be5 R7f6 Rba1 Nc2 Bc3 Nd4 Nc5+ Ke5 Nb3 Nd3 Rb1 Ba3 Nc1 Nb2 Re8 h8Q+ Rh7 Rg6 Rh6 Rgf6 Re7 Qd8 Reh7 Qa8 Rh3 Qb8 R7h6 Qf8 Ne3 Ba6 d1Q Qfd6 Qc2 Bb5 Qbb3 Bb4 Nd1 Ba5 Qa3 Nd5 Qb4 Bc7 Rg1 Nb6 Rg2 Ra8 Ra7 Ba6 Rb7 Ra7 Bcd5 Be2 Bc4 Ra4 Nd3+ Ke4 Bf2 Ra8 Ne3 Rg1 Rd1 Ra6 Nc1+ Ke5 Re1 Ra4 Nd1 Rf1 Bg1 R1f3 Bf2 R3f4 Rh1 Rf3 Bfe1 R3f4 Qd2 Rf1 Qc2
3NnQq1/qRb1B1r1/k1r1q2R/5Nn1/q1r5/4pNK1/4b1BQ/1B2Nrbq w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 d5 Kf2 Kd7 a4 Kc7 c4 Kb6 g4 h5 f5 e5 g5 d3 g6 d2 a5+ Ka6 g7 b5 c5 b3 f6 e3+ Kf3 d4 c6 b2 f7 e2 c7 e1B Kg2 e4 Ra2 h3+ Kh2 d3 Qe2 d1R Bf4 e3 Qf3 b4 Ra1 h4 Bd6 b3 Qg2 Nd7 Bg3 Rh6 Nd2 b1Q Bd6 b2 Bg3 Rc1 Ra3 Ne5 Ngf3 Qa2 Nc4 b1Q Ncd2 Nf6 g8N Ne8 Rb3 Ra7 Qg1 Bg4 c8N Qba1 Nb6 Bd6 f8Q Bc7 Na8 Rhc6 Rb7 Nf7 Ne7 Bf2 Ne1 Qe6 Nf5 Be2 Bg2 R1c4 Ndf3 d2 Bf4 d1Q Bd6 Ne5 Be7 Qda4 Nb6 Qdd5 Nc8 Nf7+ Ncd6 Q1a3 Rb5 Ng5 Rb7 Bd8 Nf7 Bc7+ N3e5 Qac5 Nd8 Qg8 Be4 Qde6 Bb1 Qd4 Rb4 Rb7 Qg3 Qa7 N5f3 Bb8 Qd6 Rd7 Rb7 Bc7 Bf6 Rh7 Be7 Rg7 Rg1 Nh7 Rg6 Ng5 Rh6 Bg1+ Kh1 h2 Kg2 h3+ Kg3 h1R Qe5 Rb6 Qd6 Kb5 a6 h2 Qf4 Ka5 Qd6 Rbc6 Qe5+ Qc5 a7 Ka6 a8B Qa7 Kg2 Bf2 Qb2 Rf1 Qe5 Bg1 Kg3 Ba5 Qb2 h1Q Qc2 Bd1 Qh2 Bc7+ Ne5 Qb3 Rb4 Rd6 Bg2 Qa4 N5f3 Be2 Rb7 Rdc6+
1b1R4/BRrQbBn1/r4q1B/r3k3/b3q3/q1p2B1K/3b1QrN/1nbN3Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kf6 d4 b5 h4 g5 a4 c5 e4 b3 h5 g3 d5 c3 a5 c2 h6 c4 d6 b2 h7 g4 d7 b4 a6 b3 a7 c3 Bc4 f3+ Kf1 f2 Kg2 f1R Bd5 Be7 Bh6 c1B Qc2 Qf8 d8B Bd7 Bc4 Nc6 Be6 Nb4 Bd5 Ba4 Bf4 Nh6 Ba5 Nf5 Qd3 Ng7 Ra2 Nc2 Bd6 Rf5 Bac7 Rg8 h8Q Na3 Bb7 Ra5 Nd2 b1Q Bb8 b2 e5+ Ke6 Qc2 f5 Qh7 f4 Ngf3 Ra6 Nh2 f3+ Kf1 f2 Kg2 f1R Bf3 Qf6 Ne4 Qa1 Qf2 b1Q Rd2 Qb4 Bdc7 Nb1 Rd8 Qaa3 Qh3 Kf5 e6 Rd1 Rg1 Rd7 Bf4 Rc7 Bh6 Ke5 Rgd1 Qb7 R1d2 Qd5 Rb2 Qd4 Rb7 Bd2 Nd6 Qe4 Nf5 Bc1 Ne3 Bd2 Kg1 g2 Nd1 Bc1 Nf1 Bd2 Kh2 g1B+ Kg3 Bc1 Nh2 Bd2 Kg2 g3 Qg4 Ra5 Kh3 g2 Nf1 Bb4 e7 Bh2 e8B g1B Qd7 Be7 Bf7 Bhf4 Nh2 Bc1 Qe2 Bfd2 Qf1 Bgc5 Qg2 Bcd6 Qf2 Rc8 Bc7 Ra6 Bb6 Rc7 Bbe3 Ne8 Bb6 Rg2 Bbe3 Ng7 Bb6 Rac8 a8Q Rc5 Ba7 Rca5 Qb8 Rcc5 Qa8 Rc7 Bb3 Rg1 Bg4 Rc4 Qac8 Qd5 Qcc6 Bb8 Be2 Qd4 Qh1 Rg2 Bf3 Rc7 Bf7 Qe4
2nb2N1/bb1KR1N1/1rQ2B2/1n3q2/4q1bQ/1pQ1n1Rr/1qB2QbB/n1k5 w - - 0 1 illegal: No possible last move, all moves rejected
1n1Qr1r1/kb1N1Bbb/6rn/5Q1n/qNRr2N1/1pb1R2q/8/B2Kb1NR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 d5 c4 Kd7 h4 Kc7 a4 Kb6 c5+ Ka7 a5 f5 c6 b5 a6 g5 h5 d3 e5 b3 c7 b2 e6 f3 e7 f4 e8R g3 h6 d4 h7 f2+ Kd2 f3 Qc2 b4 Re2 g4 Re6 b3 Re7 g2 Qc3 g3 Ne2 g1B Ra5 g2 Rd5 Bg7 Kd1 d2 Rhh5 Nh6 Qb4 Bb7 c8Q Rg8 h8N Qe8 Nbc3 b1B Re3 Bh7 Rh1 Qa4 Na2 Bh2 Qb5 g1B Ng6 Bhe5 Bh3 f1N Nb4 f2 Qd8 Ng3 Bb2 Nh5 Ba1 Bgh2 Rc5 Bhg3 Ng1 f1Q+ Re1 Bef6 Be6 Qh3 Re3 Be1 Bf7 Re8 Rc4 Be5 Ke2 d1R Qba5 Bef6 Ne5 Rb1 Ng4 Rg8 Rc1 d3+ Kd1 d2 Qf5 Rb2 Rc4 Rc2 Rd4 Rc6 Rc4 Bc3 Qe8 Kb6 a7 Rg6 Qec8 Nd7 Qf8 Re8 a8N+ Ka7 Nb6 Nb8 Nd7 Qh2 Qd6 Qh3 Ke2 d1R Qdf6 Rd4 Qd8 Rde4 Kd1 Rd4+
n2Bb3/1NK1bq2/qr3nbN/1Q1r1Q2/p2r4/kB3nrB/n2Nn2R/1R1N4 w - - 0 1 illegal: No possible last move
b2bqk1N/1R3b2/Q3n1B1/1r2b2p/N1r1QbQq/1QR4K/3Brrn1/n4N2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 h5 Kf2 e5 c4 b5 a4 d5 g4 e3+ Kg2 e2 g5 e1B c5 e4 g6 d3 a5 b3 a6 d2 c6 b2 c7 d4 a7 h3+ Kh2 e3 f5 e2 f6 b4 g7 b3 Ra5 d3 Nc3 b1B Rd5 b2 Rd4 Nd7 Qb3 d1N Rg4 d2 Qb7 Ne3 Qb8 d1R Rb4 Bd2 Na4 e1B Rh4 Nc2 Ba6 Ba2 Nf3 b1R Bb5 Be7 Ng1 Na1 Rc4 Nh6 g8N Nf5 f7+ Kf8 Ne2 Ne3 Rc3 Qe8 Rf1 Bb7 c8Q Bd8 Ng3 Nc5 Bd3 Ne6 Ne7 Rb5 Bg6 Ng2 Rf5 Bg5 Nf1 Rd4 Bd2 Rc4 Rf4 Bf3 Qa6 Bb3 Rg4 Bf4+ Rg3 Rh7 Qbb6 Rb8 a8Q Rf5 Qg1 Rbb5 Qe4 Ba2 Qgb6 Bf2 Rb3 Bd4 Rb2 Bde5 Qbe3 Bh6 Qb3 Bg5 Qg4 Ba8 Rb1 Rff4 Rc3 Rh8 Kg3 h2 Kh3 h1Q+ Nh2 Qe1 Nf1 Rf2 Rb2 Kg7 Qe4 Rg8 Qg4 Bgf4 f8Q+ Kh8 Qff5 Kg7 Qe4 Kf8 Nf5 Rg7 Nd6 Re7 Nf7 Nc7 Qgd1 Rcb4 Qc1 Bh8 Qa3 Rb6 Qf5 Rf3+ Ng3 Rc6 Qg5 Re2 Qg4 Bhe5 Nh8 Bf7 Qc2 Ne6 Qe4 Rc5 Rbb3 Rbc4 Rb7 Qf2 Qb3 Rb5 Qb2 Qc5 Qbc2 Qce7 Qb3 Rff2 Nf1 Qh4+
K1q1NB2/2N1rkn1/BN1n4/1npR1Nbb/2R1Bn2/q4q2/qrq2Q2/2Q1b3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 f5 d4 b5 g4 b3 e4 c3 a4 h3 d5 h2 d6 b4 d7+ Kf7 g5 b2 a5 h4 a6 h3 e5 c2 a7 b3 Ne2 Nc6 Qd2 Bb4 Ra5 Nd4+ Kf2 c5 Ng3 f3 Ke3 f4+ Ke4 f2 Kd5 f3 Qe2 Ne7+ Kd6 Be1 Bg2 f1Q Ra3 f2 Be4 Rh7 Qe3 Qd3 Rf1 h1Q Nd2 b1Q Nf5 b2 Nc4 h2 Ra4 Qf3 Nb6 h1N Rc4 Rb8 a8N Ng6 Nc7 Nb5+ Kc6 Ng3 Qd2 Qf8 d8Q Nf4 Qd4 Qa3 Q2e3 Qba2 e6+ Kg8 e7 b1Q e8N Re7 g6 Ngh5 g7 Kf7 Rg1 f1N Rg5 Nd2 Qa1 Qh8 Qf2 Be6 Bb2 c1B Bf6 Qbc2 g8B+ Kf8 Be5 Bf7 Bd6 Ng7 Qb2 Bg6 Be6 Rb7 Bc8 Kf7 Qb1 Rb8 Ba6 Bh5 Qa1 Re5 Bf8 Re7 Rg6 Qg8 Rd6 Qh8 Rd5 Rb7 Bd3 Ne4 Qb2 Ned6 Be4 Ng6 Qb1 Bg5 Qb2 Nf4 Qc1 Nc3 Na4 Rb2 Nb6 Ndb5 Kb7 Nd6+ Ka8 Ncb5 Nf6 Qh6 Nfe8 Qe6 Kb8 Qd7 Ka8 Qc8+
bN3knr/N2K4/1r1prn1q/q6q/1n1b1QqB/2n2B2/1nR1QQ1R/2B1B3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 b5 h4 e5 c4 g5 f4 e3+ Kd3 d6 Ke4 g3 Kd5 e4 a4 e2 a5 e1N c5 g4 c6 g2 h5 d3 a6 e3 a7 g3 c7 e2 h6 b3 h7 d2 f5 b2 f6 b4 Nc3 b1N Ra5 b3 Nf3 g1Q Bg2 b2 Nd4 Nd3 Bf3 e1R Ncb5 g2 Rh2 Re6 Ra2 Qe3 Nc6 g1Q Qe2 Nd7 Nb8 d1N Kc6 Bg7 f7+ Kf8 Qf2 Ba6 c8Q Nbc3 Qe2 b1Q Rc2 Bd4 Qc7 Qe7 Qb6 N1b2 Qc5 Qg6 Qg5 Qh5 Qf4 Qeh4 Kc7 Ke7 f8B+ Ke8 Kc6 Qa1 Be7 Q4g4 Bh4 Ndf6 Kc7 Kf8 Be1 Ne7 Kd8 Bb7 Bh4 Rg8 h8B Nb4 Be1 Rg5 Kc7 Ng8 Bg7+ Kf7 Bf8 Bd5 Be7 Qa5+ Kc8 Rf5 Bd8 Kf8 Qf2 Ne8 Bh4 Qd2 Kd7 Qe3 Qe4 Qeh6 Qee2 Rg5 Nc6 Rb8 a8Q Rb6 Nb8 Rf5 Qa6 Ba8 Na7 Rc5 Qac4 Rc7+ Kd8 Rh7 Kc8 Rh8 Kd7 Bf6 Qce4 Bd4 Qf4+ Nef6+
3kq1Nr/b2bR1bn/1qqpB1R1/B2N4/6bn/Q1r5/q1N2NrQ/2KqB3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 h4 g5 a4 b5 e4 f3 c4 f2 h5 f4 c5 g3 h6 f3 c6 d6 c7 d3 a5 b3 e5 g4 e6 b2 h7 b4 e7 b3 a6 g2 a7 g3 Ra5 Bd7 c8Q Nc6 Rah5 Bg7 R1h3 Nd4 Qdc2 Nf5 Rh2 Nf6 Rh6 Nh4 Q8c3 Rc8 Na3 b1Q a8N b2 Rg6 Qa2 Nh3 b1Q Nb6 g1B Nd5 g2 Kd1 d2 Bc4 f1B Nf2 Qbb6 Q3d3 Rg8 h8B Nh7 Qb2 Qc6 Nc2 Qdb6 Qda3 Bg4 Bb3 Bb5 Rh3 Kd7 e8N Kd8 Nef6 Qe8 Qe5 Rc3 Qh2 Bbd7 Rg3 Rf8 Ng8 Qc6 Re6 Qb6 Re7 Qc6 Nh1 Ba7 Nf2 g1R+ Re1 Rg2 Re7 Bh5 Rg6 Bhg4 Bb2 Bh6 Be5 Bg7 Bg3 Qb6 Ngf6 Rh8 Ng8 Rc7 Bd4 Rc3 Bc5 Qc6 Bb4 Qb6 Nd3 Qc6 Ba5+ Qb6 Be1 f2+ Re2 f1Q Nf2 Rf3 Re7 Qb5 Nde3 Qc6 Be6 Bf5 Nd5 Rc3 Ke2 Rc5 Ke3 Bg4 Kd3 d1Q+ Ke3 Qf3+ Kd2 Rc3 Kc1 Qd1+
4rb2/3BkBpq/N1K3b1/nnbrbQ2/7N/4Br2/2q1bRR1/n1nNN1Q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 d5 f4 e5 a4 b5 h4 e3+ Kd3 b3 c4 e4+ Ke2 g3 c5 g2 f5 b2 h5 d3+ Ke1 d2+ Ke2 d4 f6 b4 h6 b3 f7+ Ke7 h7 Nf6 c6 Nfd7 a5 Nc5 c7 Bf5 c8Q Nd3 a6 Qc7 a7 Bg6 Nh3 g1B Ra3 Nc6 Qf5 Re8 a8B Na5 Ng5 Qc2 Nc3 b1Q Rh2 b2 Rf2 Rg8 Qe1 d1R+ Bd2 Bh2 Ra2 Be5 Nf3 Rh8 Bh3 Nc1+ Kf1 d3 Kg2 e2 Qg1 e1B Bd5 Rg8 h8N e3 Be6 e2 Be3 Bd2 Bd5 Rf1 Nd1 Bb4 Ne1 d2 Kf3 Bc5 Be6 Rd8 Bg4 Rd4 Bh5 Rd5 Bd7 Nd3 Ke4 Nc1+ Nd3 e1N Rg2 Qb3 Rf2 Nc2 Ne1 Rd3 Rg2 Na1 Rf2 Q3c2 Rg2 Bed4 Kd5 Rf3 Rf2 Nb7 Rg2 Be5+ Kc6 Rd5 Rf2 Qe4 Rg2 Qbc2 Rf2 b1N Rb2 Nc3 Ra2 Bh7 Ng6+ Kd8 Rg2 Nb5 Nh4 Bg6 Rf2 Qf4 Rg2 Qh6 Rb2 Qh7 Ra2 Bfd6 f8N Ke7 Ne6 Rf8 Nc7 Re8 Nc3 d1B Na6 Be2 Nd1 Kd8 Ra4 Bf8 Rf4 Rg3 Rf1 Ke7 Rff2 Rf3 Qf4 Bf5 Bf7 Bg6 Qf5 Na5+
8/nq1p2B1/2bbR3/1n1R3b/q1B1qNnk/Q1N4B/QBnNb1K1/1r1b3r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 e4 Kg5 c4 b5 a5 f5 a6 d3 h3 b3 e5 d2 a7 g3+ Kf3 g2 e6 b2 c5 b4 e7 b3 e8Q Kh4 c6 g5 c7 g4+ Kf2 f3 Qe7+ Nf6 Qf7 g3+ Ke3 f2 Kf3 f4 Ra5 Qe8 Qe1 d1B+ Be2 f1B Qc4 Bb7+ Qd5 Bd6 c8B Nc6 Nc3 b1Q Rc5 b2 Rh2 Rb8 a8N Na7 Nc7 Ng4 Ne6 Bc6 Bb7 Qc2 Ba6 b1N Bb2 Qa4 Bc4 Na3 Qf2 Rh7 Qe3 N3b5 Qc1 Qc8 Qa1 Qb7 Qa3 Bb3 Bed3 Rhh8 Bf5 Bd1+ Nge2 g1Q Nb1 g2 Nd2 Qd4 Rh1 Bb3 Nc3 Bd3 Rc1 g1N+ Kg2 Nf3 Re1 Bd1 Re5 B3e2 Re3 Kh5 h4 Qe5 Re4 Nfd4 Re3 Nc2 Re4 Nf6 Bh3 Ng4 Re3 Kh6 h5 f3+ Kh1 f2 Kg2 Rh7 Nf4 Kg5 h6 Kh4 Re4 Rhh8 h7 Qe7 Re6 f1B+ Kh1 Qe8 Qg2 Qg6 Rd5 Qe4 Kg1 Bf3 Kh1 Bf1e2 Kg1 Rhf8 h8B Rg8 Bg7 Rh8 Qh1 Nh6 Qa2 Bh5 Qf3 Ng4 Kg2 Rhf8 Ncb1 Qc8 Bbc3 Nc7 Nd3 Rb2 Bcd4 Ncb5 Bc3 Qb7 Bce5 Qg6 Qe3 Rf1 Nf4 Qf5 Qea3 Rh1 Bc3 Rb3 Ba1 Qd3 Nc3 Rb1 Bb2 Qe4+
1n1n1qR1/1p3Q2/nk3K1q/Rr1R1B1N/Bq1n1QbB/5n1N/r3qR1b/7b w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 Kd7 Kg4 Kc6+ Kh5 f5 e4 b3 c4 b2 g4 d3 a4 d2 g5 d4 c5 h3 g6 d3 g7 f3 a5 f4 a6 f2 a7 h2 e5 f3 e6 Ne7 Kg5 h5 g8B h4 Bg2 f1Q Kf6 h3 Ne2 Rh5 Qb3 d1N Nbc3 b1Q Kf7 d2 Ne4 f2 Nf4 Qe2 Qd3 f1N Ra2 Nde3 Qc4 d1N Bh7 Nb2 Kf6 Nd2 Bf5 Na4 Ng3+ Nf3 Rd1 h1Q Rd5 h2 Nh3 Qb4 Qf4 Nc2 Bf1 Rg5 Nh5 Ncd4 Rb2 Kb5 c6+ Nc5 c7 Nec6+ e7 Kb6 Bg2 Bd7 c8R Nca6 Bd2 Qb1 Be1 h1B Bh4 Qe8 Bf1 Nd8 Rcc5 Bh6 Ra5 Qg8 e8Q Qf8+ Qf7 Qbc2 Bd3 Bg4 Bb5 Qh7 Ba4 Qee4 Bd3 Qe2 Qe3 Re5 Bf5 Bf4 Qd2 Bh2 Qf4 Nbc6 Rd7 Rb5 Rd5 Rc8 a8R Ncb8 Ra2 Rc3 Rc2 Ra3 Rd2 Ra2 Rc2 Qf1 Rf2 Qe2 Qe4 Qfh8+ Qg7 Nd8c6 Kf7 Nd7 Qf4 Qd8 Rb8 Qdh8 Rf8 Ndb8 Kf6 Nd8 Re8 Qhf8+ Qf7 Qfc5 Rh8 Qf8 Rg8 Qhh6+
N2k2Br/pRn2QB1/1r1q4/q1B1Q1bK/r2r4/b5bb/3rN1Rq/2R1Bn2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 d5 e4 f5 b4 g5 h4 g3+ Kf3 a3 c4 d3 b5 g2 b6 a2 b7 g4+ Kf2 f3 Kg3 f4+ Kf2 d4 c5 g3+ Ke1 f2+ Kd2 f3 c6 Qa5+ Nc3 Ne7 h5 Kd8 h6 Na6 b8B Nc7 e5 Bh3 e6 Nf5 h7 Ba3 Qb3 Ne3 Ne2 g1Q Rh2 g2 Rb1 a1B Qa2 Qh1 Rb7 g1B Rg2 Bh2 Qb2 Bg3 e7+ Ke8 Qb5 Qh2 Qe5 B1b2 Nf4 Ba1 Ne6 B1b2 Be2 f1R Bd1 f2 Bb3 Rg1 Bc4 f1Q Bd5 Qa4 Ne2 Qf6 Bb3 Ba1 Bb2 Qf4 Bc3 Nf1+ Kd1 Rh1 Be1 Qa5 Bc4 d2 Bd5 Nb5 Bd6 Rb8 Bc5 Nc7 Ba2 B1b2 Bb3 Bc1 Ba2 Rg8 h8B Rg4 Bg7 Rh4 Qe4 Qd6 Qe5 Nd5 c7 Rg4 Rb1 Rb6 c8R+ Kd7 Rb8 Nc7 Rb7 Rf4 Nd8 Kc8 e8Q Rh4 Bg8 Rh8 Kc2 d1R Qf7 Bh6 Rc1 Rd3 Ne6 Rd1 Beb4 d3+ Kc3 d2 Kc2 Qe7 Kd3 Qd6+ Ke4 Rg1 Kf3 Rh1 N6d4 Kd8 Nb5 Rg1 Rc4 Ra1 Rc1 d1R Bc3 Rd4 Be1 Nd5 Nc7 Ra2 Bf8 Rad2 Na8 Nc7 Bg7 Bgf4 Rf2 Rg4 Rg2 Bg3 Nf4 Ra4 Ne2 Rgd4 Qg6 Bf5 Qf7 Be4+ Kg4 Bd5+ Kf5 Be6+ Kg6 Bh3+ Kh5 Bg5+
1QbbrR1b/2b2r2/1NN1B3/K4Qn1/n1N3qk/2p3b1/2Qbr1R1/B2rN1b1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 Kf7 d4 Kf6 Kd2 e5 h4 b5 a4 g5 f5 c5 a5 g3 a6 b3 Kc3 g4 a7 b2 d5 g2 d6 e3 d7 e2 h5 e1B+ Bd2 b4+ Kc2 e4 h6 c3 Kb3 g3 Ka4 c4 h7 c2 Ra2 c1B Ra1 c3 Bd3 e3 Rh6+ Kg5 f6 b3 f7 Bg7 f8Q Na6 Bg6 Nc5+ Kb4 Na4 Qff3 Nf6 Ne2 g1B Rh4 g2 Nd4 Bg3 Na3 b1R Ndc2 b2 Bf7 Qg8 d8N Ne4 Kb5 B1h2 Be6 g1B Rf4 e2 Nc6 e1B Rf8+ Kh4 Qf5 Ng5 Ka5 Rb8 a8N Rb7 Qe2 Rf7 Ra2 Ra1 Qed3 b1R Nb6 Rb2 Nac4 Bc7 Qe2 Beg3 Ne1 Bd8 Be3 Bgf6 Qec2 Bd2 Bc5 Qg6 Ba3 Rg8 h8Q+ Qh5 Qcd3 Rd1 Qc2 Bfd4 Qhe5 Qg4 Qc7 Bh8 Qb8 Rb3 Bc1 Bgc7 Bb2 Bhg3 Ba1 Rb2 Qce4 Bdf4 Qb1 Rh2 Rf2 Bd2 Qbc2 Rg2 Rf4 Re2 Rf2 Rfg7 Rg2 Rd7 Rf7 Re8 Rf8 Rf7
7N/1r1n4/bB1k3N/3Br1q1/p1B2nNN/R1b1rn1n/2Kn3r/Q1QR1nn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 a5 c4 d5 g4 h5 e4 f5 e5 a3 g5 a4 b5 d3 c5 f3 c6 h3 g6 f2 b6 a2 c7 f4 g7 f3 e6 h2 b7 d4 Nh3 h4 Bb2 Ra5 Ng1 h3 Qc1 Rh7 Bc3 Re5 Qd1 Nd7 b8Q Kd6 e7 Ba6 e8B Ne7 g8N Nd5 Nh6 Bg7 Qb5 Nf4 Qc1 Qg5 Be2 f1N+ Kd1 d2 Ng4 f2 Kc2 d1N Qa5 Nd2 Bb2 f1N Nc3 Nf2 Nh6 Nf3 Nd1 Ne4 Bd3 Ned2 Ne3 Bh8 Bc4 d3+ Kd1 Rf7 Neg4 Re3 Qb5 Bc3 Qf5 Rfe7 Bef7 Re8 Bfd5 R8e5 Ne2 Ng1 Nd4 Ndf3 Qh7 d2 Kc2 d1N Qh8 Nf2 c8N+ Kc7 Ne7 Kd6 Qg7 Ne4 Ng6 Ned2 Rb1 a1R Nh8 Ra3 Ra1 Rb3 Ra3 Rb7 Ba1 Nge2 Rg1 h1R Bb2 Rh2 Ndf5+ Kc7 Rh1 Neg1 Nh4 Kd6 Ba1 Rg2 Bb2 h2 Ba1 Ngh3 Rg1 h1N Bb2 N1f2 Rh1 N1h2 Rd1 Nhf1 Ba1 Nhg1 Bb2 Ba5 Bd4 Rh2 Bb6 N2h3 Qf6+ Re6 Qfb2 Bc3 Qba1 R6e5
r1r4n/3BRqb1/2b3BR/p2Q2b1/k5b1/3bKnNQ/nB6/bBNb2nN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 b4 d5 h4 Kd7 c4 Kc6 e4 f5 c5 a5 e5 d3 e6 Kb5 e7 f3 e8B+ Nd7 h5 a3 h6 f4 c6 d4 c7 g3 h7 f2 Bb2 g4 Bh5 g2 Qc2 g3 Ra2 f3 Nh3 g1B Ra1 a2 Be8 g2 Qc1 Nh6 Qc5+ Ka4 b5 Ne5 b6+ Qd7 b7 Nhf7 b8Q Bg7 Qd5 Bh2 Be2 f1B Nf2 g1N Qa7 Rg8 h8N Bg2 Ng6 Nh8 Nf4 Bg3 Qb8 Bh4 Bg6 Qf7 Nh5 Bg4 Ng3 Rc8 Rh2 Bd8 Nfh1 f2 Rh6 f1B Qb6 Be4 Qbe6 Bfg2 Bf3 Bef5 Be4 Bg5+ Ke1 d2+ Kf2 d1B Nd2 d3 Nb3 d2 Bb1 Nef3 Nc1 Bd3 Qef5 Rd8 c8B Rf8 Be6 Rfc8 Bd7+ Bb5 Nb3 Bc6 Qfe6 Bf1 Nc1 Bd3 Qef5 Bh5 Qh3 Bg4 Be6 B1c2 Bd7 d1N+ Kg2 Nc3 Kf2 Be7 Ke3 Bd1 Bh5 Bd8 Bg6 Bg5+ Kf2 Ra6 Nb3 Bd8 Bc2 B1e2 Re1 a1B Bb1 Bd1 Nc1 Bg5 Re5 Raa8 Re7 B5f6 Ke3 Na2 Bh5 Bh4 Bg6 Bg5+
r1b5/1KBb2N1/1QnQ4/1N1r1q1r/R3Bbb1/1B1r1R2/2Nq2pB/1nkqn3 w - - 0 1 illegal: No possible last move
1B2qN1N/2R2bqq/Qn4Rn/1Bb3r1/1kN1q2N/2n2n2/2pb3R/3Qr1rK w - - 0 1 illegal: No possible last move, all moves rejected
b3B1N1/q1b3q1/3QB1n1/rn2RbBq/1Q1R1N1Q/6r1/bp5q/k1nr2BK w - - 0 1 illegal: No possible last move
1B3r1k/1n1r1R2/2N1B2r/1b2b1nK/q1Q1nq2/1b2n3/NpB2N1Q/2qrB1R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 Kf7 a4 g5 c4 Kg7 c5 b5 a5 b3 e5 b4 a6 f3 Kg3 b2 h5 f2 e6 f4+ Kh2 g3+ Kh3 f3 Kg4 d3 a7 g2 c6 d2 c7 d4 Ra6 d3 Rh2 b3 Ra4 Na6 Rc4 Rh6 Nc3 b1B Nh3 g1N Ne4 b2 Qe2 d1R Nc3 d2 Qe4 Qd4 Bd3 f1Q Rh1 f2 Na2 Nf3 Rg1 Kh8 Bc2 Bd7 c8N Bb5 e7 Nc5 e8Q Bd6 Ne7 Be5 Qb8 Nb7 Rc7 Qa4 Nc6 Qfc4 Rd7 f1N Nf2 Qf7 Qd6 Rf8 a8B Qf6 Qc4 Ne3+ Kh3 Qf4 Rf7 Nf6 Qb8 Rg6 h6 Ne4 h7 Rd6 Qc7 Rd7 Qd6 Re1 Qb8 d1R Bd2 Re2 Be1 Red2 Nc3 Ba2 Qc7 Bb3 Na2 R2d6 Qb8 Na5 Bb7 Rg6 Bc8 Nb7 Qd6 Rgg8 Qh6 Rg6 Qh4 Rh6 Qh5 R7d5 Be6 Rd7 Qh4 Nfd2 Qh5 g4+ Kh4 Ng5 Rg7 Rhf6 Rf7 Nde4 Qh6 g3+ Kh5 g2 Bb1 Nf3 Bc2 Qg3 Qf4 Nfg5 Qh4 Rg6 Qh2 Qf4 Rf6 Kg7 h8B+ Kh7 Rf7+ Kg8 Rh1 g1Q Bg7 Qf1 Rg1 Kh7 Bf6+ Kg8 Be7 Kh8 Bd6 Rf6 Bb8 Rg6 Bb4 Qe1 Ba5 Qd2 Bb4 Qc1 Be1 Rh6+
3b2QB/3b2n1/Kq3B2/4QnN1/4bR1R/1BBrkr2/pq4qQ/r1Nn1br1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 Ke4 b4 a5 c4 d5 h4 f5 e3 g5 c5 d3 h5 f3 c6 f2 h6 f4 c7 a3 h7 d2 Kb6 a4 b5 a2 Qb3 d1B Qc3 g3 Rh5 f3 Bh3 f1B Qc5 a3 Ne2 g4 Qc4+ d4 Qc3 g2 Qe1 g1Q Qa5 d3 Qd2 g3 Be6 f2 Bb2 g2 Bc3 Bc2 Bb3 Bd7 Nc1 Nh6 Rh4+ Kf3 e4 Nf5 e5 Na6 e6 Nc5 e7 Ne6 e8Q Neg7 Bf6 Be7 Nc3 Ra7 Qh6 d2 Ne4 d1N Ng5+ Ke3 Rf4 Rg8 h8B Be4 Qh2 Qh1 Rb1 a1Q Bc3 Bf6 Qe5 g1R Rb2 a2 Rd2 Qf3 Rd4 Qb2 Rb4 Rb7+ Ka6 Rf8 c8Q Qg2 Qc4 Qc7 Qg8 Bd8 Rc4 Rf6+ b6 Rd6 Rh4 Rd3 Rd4 Rb8 b7 Rc8 b8B Qc5 Ba7 Qb4 Be1 Rcc3 Bc5 Qb8 Be7 Qb4 Bf6 Qb8 Ne2 Rc1 Ra4 Ra1 Nc1 Be2 Qge8 f1R Be6 Rf3 Bc3 Bf1 Qg8 Q8b4 Bb3 Qd4 Qc5 Ba8 Qcd5 Qc5 Raf4 Qc7 Qb5 Be4 Qe5 Qb6#
6rN/K1q1QBk1/n1qR4/1bB4n/N2p2bn/1N3N1r/2Q1qq2/Qb1R1rb1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 c4 f5 e4 Kf7 g4 h5 a4 d5 e5 h3 g5 h2 g6+ Kg7 e6 f3 a5 f4 c5 d3 e7 h4 e8Q d2 c6 h3 c7 b3 a6 b4 a7 b2 Qee1 b3 Qee2 Na6 Qde1 d1Q Qc3+ Nf6 Qcc2 Bc5+ Be3 Nh5 Nd2 Bg4 c8N b1Q Nb6 b2 Na4 Qc7 Nb3 Rag8 a8Q Qa2 Rb1 Qd4 Rd1 b1B Qe1 Ba7 Bc4 Qe4 Bc5 Rh7 Kf1 f2 Nf3 Qe6 Rg1 h1N Rg2 Qeb6 Ke2 f1R Kd3 h2 Kd4 N1g3 Rgd2 h1Q Qae8 Qe6 Qe7+ Qf7 Rd3 Rhh8 Qec3 Rh6 Qa1 Nf5+ Kc3 Nh4 Kd4 Kh8 g7+ Kh7 Ng1 f3 R3d2+ Qf5 Rd3 f2 Nf3 Qhh2 R3d2 Qhd6 Rd3 Qdc6 R3d2 Rc8 g8N+ Kg6 Rd3 Qf7 R3d2+ Kg7 Rd3 Rh7 Nh6 Rg8 R3d2 Kh8 Rd3 Qfe6 Nf7+ Kg7 Nh8+ Qf7 Qcc3 Qe2 Qd2 Rh1 Qc2 f1B Re3 Rh3 Re6 Rh6 Rd6 Rf6 Bd3 Qg2 Bg6 Bb5 Qe1 Qfe7 Bf7 Qee2 Qb4 Bb6 Qe1 Qef2+ Qe3 Qe2 Qe7 Qgf2+ Kc3 Re6 Kb2 Qg1 Ka3+ Qe5 Bb4 Be3 Bc5 d4 Rd5 Qgh2 Rd7 Bg1 Rd6 Nb8 Kb4 Qf2 Nb6 Na6+ Ka5 Qa7 Na4 Qee4 Qcb2 Qec2 Qc3 Re1 Qd3 Qce2 Qf5 Qd5 Qc2 Qd7 Kb6 Rf1 Ng5 Qd8+ Ka7 Qc6 Nf3 Qdc7+
4b1N1/2r1QR2/1rnb1nB1/k1q2K1p/1q1NRB2/b1Q3B1/rq1rb3/2Qn3B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc7 g4 Kb6 c5+ Ka5 g5 e5 f5 b5 f6 e3 Kd3 h3 c6 e4+ Ke2 d3+ Ke1 h2 f7 d4 c7 e2 Kd2 b3 g6 b4 g7 b2 Nc3 b1Q Qe1 b3 Qd1 b2 Nd5 Ba6 c8Q Nc6 Nf6 Qb6 Nf3 Ba3 f8B Qc5 Bd6 Rh7 Bg3 e1R Rg1 h1B Qf8 Rb8 Qe7 Rb6 Rg2 Qa2 Re2 b1Q+ Qc2 Qab3 Qc3+ Qbb4 Bh3 Rf1 Bf5 Rf2 Bg6 Bg2 Ra2 Bh3 Rb2 Bd7 Rb3 Be8 Rb2 Nh6 g8Q Ng4 Qc4 Qa1 Ng8 Nf6 Qd6 Rc7 Qe7 Qd6 Rc2 Qb2 Qc5+ Bb5 Qg5 Qc5 Qf4 Ka6 a5 Bc4 Qe3 Kb5 a6 Ka5 a7 Rg2 Kd1 d2 a8B Rh2 Qg1 e3 Qf1 Bb5 Rf2 Ba6 Qfc4 Bb5 Ke2 d1N Kd3 e2 Bcf4 e1B Rce2 Bd2 Re4 Bc1 Bg5 Bf4 Qc1 Bd6 B5f4 Ba4 Q4c3 Bc2+ Kd2 d3 Nd4 Bb1+ Ke1 d2+ Ke2 Bc2 Kf3 Bd3 Q1c2 Nd7 Be3 Ncb8 Bf7 Qc1 Rf4 Nb2 Bg6 d1R Bc6 Bb5 Ke4 Ba6 Bd5 Nc6 Re2 Bb5 Rf7 Nf6+ Kf5 Rd3 Bg5 Nd1 B5f4 Rf2 Re1 Rg2 Qb1 Ra2 Re6 Qd2 Qbc1 Qb2 Re5 Rd2 Bh1 Nd5 Re6 Be2 Re4 Nf6+
qK3bQ1/5rqR/3nrq1R/1R4p1/1q1BbkB1/N1NQ4/n2n1N2/r1b1b1R1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1B h5 d3 h6 e3 a5 d4 a6 g3 h7 e2 a7 d2 Ra4 d3 Na3 g2 Qc2 d1Q Bd2 Qf6 Nc4 Nc6 Be3 Bb7 c8N Qda1 Ra6 Nge7 Qc3 d2 N8b6 Nc8 Bd4 Nd6 Nh3 g1B Na4 Be3 Rg1 d1Q+ Qc2+ Qd3+ Nc3 Bc1 Na3 Qe4 Qd3 Re8 a8Q Re6 Bg2 Rg8 h8R Rg7 Ra5 Rf7 Rh7 Kg4 f5 Qee5 Nf2+ Kf4 Rh5 Qg7 Qb8 Qef6 Bf3 Ba8 Bg4 Bb7 Qb1 Ba8 Rh6 Bb7 Kc2 b3+ Kd3 b4 Rb5 b2 Qc2 b1R Qb3 Be7 Qg8 Bf8 Qc2 b3 Qd1 Ne4 Kc4 b2 Kd5 Nd6 Qd3 Nb4+ Kc5 Ba8 Kb6 Na2 Ka6 Bb7+ Ka7 Be4+ Kb8 Bed2 Rh7 e1Q Nfd1 Qh4 Nf2 Be1 Rh6 Nb4 Rh7 Qa2 Rh6 Ra1 Rh7 b1N Rh6 Qe5 f6 Nd2 Rh7 Qad5 Rh6 Na2 Rh7 Rc7 f7 Qef6 Rh6 Qb3 Rh7 Qh1 Rh6 Qb4 Rh7 Be7 f8R Ra7 Rc8 Bf8 Rc5 Rf7 Re5 Ba8 Re3 Qc6 Reh3 Qa6 R3h5 Be4 R5h6 Qa8#
1nq1b3/K1N1RR2/2R2nr1/kq3p2/3q1b2/1Q1Q1r2/2nNNrqb/4bNBB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 a4 Kd7 h4 Kc6 c4 Kb6 e4 f5 e5 g5 c5+ Ka5 e6 b5 e7 d3 e8N d2 c6 d4 h5 f3 h6 b3 c7 b2 h7 b4 Bc4 g3+ Kf1 g2+ Kf2 g4 Ng7 d3 Ke3 f2 Qc2 f1R Ba6 d1N+ Kd2 g3 Nh5 b3 Bb7 Rf3 Ne2 Nf6 Re1 Rg8 h8Q Ne3 Kc3 g1B Nd2 g2 Nhg3 b1Q Qh3 b2 Qb3 Bh6 Ngf1 Bd7 Kd4 Rg6 Kc5 Bf2 c8R g1B Rc6 Qa2 Qg3 b1Q Bb2 Ra7 Bd4 Nc2 Qd6 Bg3 Be3 B1h2 Bg1 Qbb2 Rac1 Ng4 Rc7 Bc6 Rf7 Be8 Ba8 Rf2 Bh1 Bhf4 Qdd5 Nf6 Qf3 Nbd7+ Kc6 Ra8 Kb7 Nb8 Qe4 Ra6 Qc4 Re6 Ka7 Re3 Qe4 Ref3 Qd4 Na1 Rc6 Qc8 Nc1 Bh6 Ne4 d2 Qa3 d1Q Ka8 Qb5 Qb3 Bd2 Qd6 Qde2 Qdd3 Qe3 Re2 Bf4 Re1 Qeb6 Re2 Ka6 a5 Be1 Re3 Qe2 Ned2 Nc2 Ree7 Qe4 Ne2 Qbc4 Qa2 Kb5 a6 Rh3 a7 Qbd4 Qb2+ Ka5 Qbb3 Qcd8 Kb7 Qg2 a8N Rhf3 Nc7 Qb5+ Ka8 Q4d6 Ka7 Qc8 Ka8 Qdb4 Ka7 Qd4+
1R2Bn1q/Qbk5/1q2bNnb/Bp1Q2r1/2q2r1B/KB1N3q/3Rn2b/R5r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 c4 Kd7 Kc2 g5 Kb3 f5 e4 f3 h4 g3 a4 g4 a5 g2 c5 d3 e5 d2 h5 g3 c6+ Kc7 e6 d4 a6 f2 h6 d3 h7 f4 e7 f3 e8B Be6+ Ka4 b3 a7 b2 Rh6 Nd7 Nc3 b1Q Bg6 Ne7 Be8 Ng6 Qc2 d1N Nh3 g1B Bb2 d2 Qf5 g2 Nf4 Bh2 Ba6 f1Q Nd3 g1R Bc4 f2 Ne4 Qh3 Qd5 f1Q Bf6 Rg8 h8B Qb6 Bb3 Qc8 Rh7 Bh6 Bh4 Nc3+ Ka3 d1B Nf6 Bf3 Bg7 Rb8 a8Q Ne2 Qa7 Ra8 Bf8 Bh1 Be7 Ndf8 Bb4+ Rg7 Ba5 Qc1+ Ka2 Qc4 Ka3 Rf7 Nd7 Rf4 Nf6+ Qd7 Rh8 Qg7 Rg8 Qh8 Rg7+ Ne7 Rg2 Neg6 Rf2 Nd4 Rc2 Ne2 Rd2 Rd8 Qg5 Rd5 Qf5 Kd6 c7 Be4 Qh5 Rdg5 c8R B4d5 Rd8+ Kc7 Rb8 R5g4 Bb4 Qbc5 Qf5 Rg5 Qe4 Bc6 Qd5 Qf2 Qe3 b5 Qa7+ Bb7 Ba5+ Qb6
4B1b1/rRb1nQ1B/3np1br/3N1Nqn/2N1q2B/R2n1rQ1/1q3b2/1k2NK2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Kg6 c4 b5 a4 d5 a5 h5 g5 Kf5 g6 d3 c5 d2+ Kf2 b3 c6 e3+ Kg2 Ke4 g7 b2 a6 h3+ Kh2 b4 c7 h4 f5 d4 a7 e2 f6 Kd3 f7 b3 Qe1 Kc2 Qf2 d1N Nf3 d3 Kg1 d2 Qe3 e1B Qb6 h2+ Kg2 Nh6 g8B Nf5 Qg1 Nd6 Ra5 Bf2 Rf5 Be6 c8N Nc6 Ra5 Rh6 Ng5 h3+ Kf3 Bg7 Ke2 Be5 Nc3 b1Q f8N Nb2 Nd7 d1R Nd5 Rd3 Bh7 Bg8 Qg3 e6 Nf3 Qg5 N7b6 Ne7 Nc4 Qa2 Ra3 Kb1 Rg1 h1N Ne1 h2 Bg2 Qa1 Kf1 Bf4 Bf3 Qa2 Bh5 Be5 Nc2 Rf3 Ne1+ Nd3 Be8 b2 Be3 Nf7 Bc5 Bc7 N8d6 Qa1 Nf5 Nd6 Bd4 Qa2 Bf6 Qb3 Qh3 Qc2 Qh5 Qc3 Qf7 Ng3+ Kg2 Nh5+ Kf1 h1B Rg3 Qcd2 Rb3 Qdf4 Rb7 Qe4 Rh3 Ka2 Rg3 b1Q Rh3 Qb2 Rg3 Rd8 a8Q+ Kb1 Qa3 Ra8 Qc3 Ra7 Rh3 Qd2 Bh4 Qg5 Qa3 Rf4 Re3 Bf3 Qb3 Bd1 Qc3 Bc2 Qe5 Rf3 Qg3 Ne5 Reb3 Nd3 Ra3 Nc5 Ng7 Qe2+ Kg2 Bg6 Nf5 Qe4 Kf1 Nd3
KBq1R3/1rBQ1B2/bpq1R3/3n2n1/1rkb1Q1N/2Bb2nN/5r2/q1Q2b1r w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 a4 Ke6 f4 Kd5 h4 e5 f5 g5 h5 g3 h6 e3+ Kd3 b6 c3 e2 a5 e1N+ Ke2 g2 h7 e4 a6 b3 f6 b2 f7 d3+ Ke3 g4 a7 d2 Ra3 g3 Qe2 d1R Ra5+ Bc5+ Kf4 e3 f8B Rd4+ Kf5 Nh6+ Kg6 Nc6 Qd2 e2 Qf4 Kc4 Nh3 g1R Bd6 g2 Bb8 Nf5 Kf7 d5 Ra2 Rg8 h8B Ba6 Ke6 Nf3 Bhe5 Qf6+ Kd7 Rf8 Kc7 Nce7 Bd2 Ng3 Be1 Ng5 Nd2+ Kd3 c4 b1B Rh2 Rh1 Nf3 g1Q Bc3 Qe6 Bd6 Qg2 Nh4 Qg8 Qc1 Rf2 Rb2 Re4 Rb5 Be3 c5 d4 c6 Kc4 Re5 d3 Re6 e1Q Be2 Rd4 Bh5 d2 Bf7 d1B Be5 Be2 Bf4 Bb5 Kb7 Nd5 c7 Bf1 Re8 Bbd3 c8Q+ Kb3 Qd8 Rb4 Qd7 Kc4 Bfc7 Bd4 Qf4 Qf3 Re6 Qa1 Qc1 Rd2 Rhe2 Qf6 Re8 Qf8 R2e6 Rf2 Be5 Q8h8 Bbc7 Rd8 a8Q Ba6+ Ka7 Qg8 Qb8 Qh6 Ka8 Qgf8 Qa4 Rd7 Qb7 Qc5 Bb8 Qc8 Bc7 Nf4 Qe4 Nd5 Qef4 Qg6 Bd6 Rc7 Qd7 Rb7 Bc7 Qh6 Re4 Qd6 R4e6 Qc6
QN1NB1R1/nrn2nQ1/pbq3Q1/q2B4/q1n1br2/3RBQ2/1r1b2Kb/1k6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 h4 Kd6 b4 Kd5 c4+ Ke4 c5 d5 e3 g5 h5 f5 b5 a6 c6 f3 h6 d3 c7 d2 b6 a3 b7 f4 h7 a2 Na3 d4 Qa4 d1Q Qb5 d3 Be2 d2 Qb3 Qc2 Rb1 a1Q Rh3 d1N+ Kf1 g3 Qa4+ Bb4 Nc4 g4 Rh6 f2 Rb2 Nc6 b8Q Bf5 c8Q Bd2 Qbb7 Rb8 Qbd7 Qa5 Qb5 Nc3 Qd6 Rb7 Qa8 Q1a4 Qa3 Na7 Qc6+ Nd5 Rh3 Nh6 Kg2 f1N Qg6 Rhb8 h8Q Nf7 Qhg7 Nc7 Ne5 Qcc6 Rb1 Rb2 Nd7 R8b7 Nb8 f3+ Kh1 f2 Kg2 R7b3 Bf3+ Kd3 e4 Kc2 e5 Rb7 e6 Be4 e7 Ne3+ Kh1 f1R e8B Ned5 Kg2 Nb6 Ne2 Nc4 Nf4 Rf2+ Kg1 g2 Ne6 Rf1+ Kh2 g1B+ Kg2 g3 Nd8 Bb6 Rh8 Bb4 Be3 Bd2 Rd1 Rf2+ Kh3 g2 Rg8 g1B Kg3 Bb4 Rd3 Bd2 Qaf8 Rf1 Kg2 Bh2 Qa3 Kb1 Qb3 Bf5 Bd5 Rf4 Qd1+ Bc1+ Qe2 Bd2 Qf3 Be4
qk3rrb/2RBp3/1nbq4/b6q/nQ1Bn2R/q1Q2K1N/1Q2R1RN/2b4r w - - 0 1 illegal: No possible last move
brb2r1r/3k1nnb/1B6/2q2bn1/1Qb1BQ1B/1Nn2NR1/KRBN1p2/2b5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 g5 c4 b5 Kc2 b3+ Kb2 b4 a4 f3 e5 g3 e6 f2 c5 f4 h5 g4 c6 f3 a5 d3 c7 d4 a6 g2 e7 d2 h6 d3 h7 g3 a7 Qd5 Rh5 Qc5 Ne2 g1N Na3 g2 Qe1 d1N+ Kb1 d2 Nc3 b2 Nc4 Nd7 Rg5 Ndf6 Bd3 f1B Nb5 f2 Nd4 Nh6 Na5 Nf7 Rg3 Nh5 Nab3 Bh6 Ra2 Rb8 a8B Nh3 Bc2 g1R Nf3 Nhg5 Bae4 Kd7 e8N Ng7 Nd6 Bc4 Qe3 Rf8 h8B Rh1 Qf4 Rh4 Ra5 Rh5 Rb5 Rh2 Ka2 b1B+ Ka1 Rh3 Bb2 Rh5 Bd4 Nc3 Rb6 d1B Bf6 Bd5 Nc4 Ba8 Ncd2 Be2 Be7 Bc4 Bf6 Nh3 Bh4 Nhg5 Kb2 Nf5 Bd4 Ng7 Nc1 b3 Rb5 Qd6 Bb6 Qe5 Ka3 b2 Ncb3 Qd5 Bd1 Bbd3 Bc2 b1B Kb2 Bf1 Ka3 Bh3 Kb2 Bf5 Ka3 Bcb7 Rb4 Qc5 c8Q+ Ke7 Qc6 Bbc8 Qa4 Ke6 Qa5 Kd7 Kb2 Nh3 Rb5 Bg5 Qb4 Rhh8 Ra5 Bh6 Ra2 Nhg5 Ka3 Bh7 Rb2 Bf5 Bd1 Bbd3 Bc2 Bh7 Bb7 Bdg6 Bbe4 Bf5 Qe3 Bcd5 Nb1 Nh3 Qg5 Bc4 Qf6 Bc1 N1d2 Nhg5 Qh6 Nh3 Qf4 Ne2 Ka2 Nhg5 Kb1 Nc3+ Ka1 Ne2 Ka2 Nc3+
5bK1/b1rBb3/1r1Q2BQ/1b1b1rB1/4k1qN/2nnNp1R/1n1Q1b1R/n1Q5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kd6 d4 Kd5 a4 g5 e3 c5 h5 f5 a5 b5 h6 g3+ Kf3 c3 h7 c2 a6 g4+ Ke2 b3 Kd3 b4 a7 b2 Nh3 f3 Bg2 f4 Nf2 b3 Na3 b1R Nb5 b2 Qg1 c4+ Kc3 Na6 Qh2 Be6 Qh5+ Qg5 Rg1 Nh6 Qh2 Nf7 Bh3 g2 Ra2 g3 Rh1 g1B Nd1 f2 Nd6 f1B Nf5 g2 Nh4 f3 Qd6+ Ke4 d5 Rc8 a8Q Nc5 Qac6 Qg4 Bd2 Rg8 h8Q c1B Qh6 Nb3 Kb4 Na1 Kc5 Bf2 Rh2 g1B Ra7 Ng5 Rh7 c3 Qc7 c2 Kc6 Kd3 e4 Nf7 e5 Rg7 Bg5 Ke4 Ne3 Bb5+ Kc5 Bd2 Qc6 c1N Rh8 Bd7 e6 Rc7 e7 Be6 e8B Ne5 Bh5 Rcf7 Bg6+ Rf5 Qc7 Nc4 Rh7 Ba6 Kc6 Bf7 Kd7 Bb4 Qc8 Be6+ Ke8 Nd3 Qcc5 Rc7 Rh8 Nb6 Qc1 Na4 Rh7 Bc3 Rh8 Bf6 Rh7 Bc4 Rh8 Bd7+ Kf7 B6e7+ Kg8 Bcb5 Qb6 Bc8 d6 Bb7 d7 Ba8 Qd6 Bac6 Nd1 Ba7 d8Q Bgf2 Ne3 Bb7 Qd2 Ba8 Qc8 Bd5+ Bf7 Rg1 Rh7 b1N Rh8 Nbc3 Rh7 Ba8 Bg6 Nab2 Rh8 Rb1 Rh7 Rb7 Qcc5 Rc7 Rh8 Ne2 Qcc1 Bd5+ Bf7 Na4 Qdc2 Be8 Q2d2 Qg3 Qhg6 Nec3 Nhg2 Rb6 Rh5 Bd7 Qh6 Re5 Bg4 Be8 R5h3 Nab2 Nh4 Bb5 Bge6 Rf5 Bd7 Ba8 Bfe8 Qg4 Bg6 Bd5+
BB1Kb1k1/Q1B5/N3Nbr1/p1R2b2/1b2r3/R1nb1nQ1/3rq1n1/1BQ1b1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 Kd3 g5 e4 a5 h4 f5 b4 Kf7 c4 g3 b5 f3 h5 g4 b6 f2 b7 f4 e5 f3 h6 g2 c5 a3 h7 g3 c6 a2 c7 Ra6 Qb3 Nf6 Rh6 Ne4 Re6 Nd7 b8B Bb4 Nd2 Re8 h8Q Qe7 Rg6 Nc3 Be2 f1N Rh6 f2 Rc6 Ne3 Ne4 f1B Nf3 g1N Rc5 Ng2 Bf4 Rg6 Qh7+ Kf8 e6 Ne5+ Kc2 Bd7 Nfg5 Nef3 c8Q d3+ Kb2 d4 Bfc7 d2 Bd3 d1R Bb1 d3 Qa3 d2 Kb3 Nb5 Ka4 Bd3 Qc1 Bc6 Qa6 Bd7 Qh2 Kg8 Qa7 Bc8 Rc3 Bd7 Nc5 Bc8 Na6 Bd7 Rc5 Nc3+ Kb3 Bf5 Kc4 Bc6 Be4 Ba4 Ba8 Bd7 Rb1 a1B Rb3 Bc6 Ra3 Bb5+ Kb3 Bbd3 Qh3 Qf6 e7 Qe5 Ne6 Qe2 Qh4 Nd5 Ka4 Bf6 Qh2 Nc3+ Kb3 Re1 Qh4 Rd8 e8B Rd4 Bec6 Rd7 Be4 d1B+ Qc2 Bb5 Qh3 Rd2 Bd3 Ba4+ Kc4 Be8 Qc1 Bc2 Qh2 Nb1 Kd5 Nc3+ Kd6 Bb1 Bd5 Bc2 B3e4 Bd3 Ba2 Qf1 Bc6 Re4 Bb1 Qe2 Ba8 Nh3 Rb3 Ne3 Qf2 g2 Ra3 g1B Qg3 Ng2 Ba2 Bf2 Bb1 Bg7 Ke7 Be1 Kd8 Nhg1 Kc8 Be5 Kd8 Bf6+
1nb4N/2n2Q1n/r4nB1/q1n1R1Br/6Rr/NQb2K2/rQq1R1pk/1n1Q4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 h4 b5 c4 g5 c5 f5 h5 d5 c6 d3 h6 d4 h7 d2 c7 d3 a5 f3 a6 Kf4 e5 b3 a7 b2 e6 b4 e7 b3 e8Q Bb4 Qg6 Nf6 Qc2 Bc3 Bg2 g3+ Kf1 f2 Rh3 g4 Na3 b1Q Qf7 b2 Qcb3 Qc2 Rh4 b1N Bb2 d1N Qg8 d2 Ke2 f1R Bd5 g2 Qf8 Kg3 Qf7 f4 Qg8 Nf2 Qf7 f3+ Ke3 d1R Ra2 N2e4 Be6 f2 Bc1 Rd2 Nh3 g1N Bf5 Nf3 Bg6 Rh1 Nf4 Nc5 Rh5 Rh4 Re5 Kh2 Rb2 Bb7 c8Q g3 Qg4 Ng5 Qd1 g2 Ra2 Bc8 Rb2 Nh3 Kf3 f1N Ra2 Ne3 Rb2 Rg8 h8Q Ned5 Ra2 Nc7 Rb2 Rd6 Qhg7 Qf5 Rbe2 Rgh8 Be3 Ra6 Bd2 Nc6 Be3 Qc2 Bc1 Rb8 a8R R8h5 Bd2 Rb5 Rb8 Rba5 Rb4 Ra4 Qh6 R6a5 Be4 Bd7 Nc4 N7a6 Ng6 Ra2 Nh8 Ncb8 Na3 Bc8 Bg6 Qc7 Rg4 Ng5+ Kf4 Ngh7 Kf3 Qb6 Qe3 Nc7 Qb5 Ra6 Qb2 Bd4 Qeb3 Qa5 Bg5 Bc3
6q1/QR1nRrnk/B3b2B/4n3/bK1Q3Q/1N4Rr/Nn2p3/bR1bbrr1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 c4 b5 a4 d5 g4 e5 c5 h5 a5 e3+ Kd3 e2 a6 e1B g5 h3 f5+ Kh7 c6 h4 f6 h2 a7 e4+ Kc2 h3 Kb3 d3 c7 d4 f7 d2 Na3 d3 Qf3 d1B+ Nc2 e3 Ra3 e2 Qf4 d2 Qh4+ Nh6 Bb2 Bg7 f8R Be6+ Qc4 Nf5 c8Q Nd7 Bc1 Ba1 Rf7+ Ng7 Qc5 Qg8 Qd4 Rf8 Re7 Rf6 Nf3 Rf7 Rg1 h1R a8Q h2 Rg3 Rg1 Qaa7 h1R Bg2 Rf1 Ra6 Rhg1 Rb6 Nb8 Rbb7 Nd7 Ka2 b3+ Ka3 b2 Nb4 b1B Na2 Bg6 Kb4 Bgc2 Bh1 Ba4 Qh4+ Kg6 Nd4 Rh5 Rb3 Kh7 Rb1 Rh6 Nb3 Rh5 Ka5 b4 Qcd4 Rh6 Bc6 Rh5 Bb5 Rh6 Nc5 b3 Kb4 b2 Ba6 Rh5 Qg3 Rh3 Nb3 Bc2 Qgf2 d1N+ Bd2 Ne3 Qff4 Nc4 Qff6 Bd1 g6+ Kh8 Qg5 Nce5 Qgf4 Nf5 g7+ Kh7 Rc1 b1N Qh2 Qd8 g8R Nc3 Rg3 Ng7 Rb1 Qg8 Qh1 Nb5 Qh2 Na3 Qhf2 Nac4 Qf6 Bf2 Bh6 Nb2 Qfh4 Be1+
1br2KN1/4n1n1/1b1Q2r1/BR1BQ3/2nb2NB/2b2bB1/b1qp4/N1kqRn2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1N a5 g3 h5 d3 h6 g2 a6 g4 h7 d2 a7 g3 Ra3 e3 Nc3 d4 Nf3 g1B Nb1 Ke4 f5 g2 f6 d3 f7 e2 Ra1 Ke3 Nh2 Ne7 Ra6 Bg4 c8N Qc7 Rh6 Nf5 Ne7 Ng7 Nc6 Nf3 Nd4 e1B Rh5 Ne5 Na3 Bd6 f8B Nbc6 Be7 Rhc8 h8B Bf3 Bh4 Ne7 Nc6 Nc4 Rg5 Rab8 a8Q Rb6 Qb8 Bgf2 Rf5 g1B Bg2 Be5 Rg5 Bfg3 Bb2 Bd4 Bc3 Bge5 Qa1 d1Q+ Nc2+ Ke2 Bd2 Ra6 Bf4 Bec3 Bfg3 Kd2 Ng4 Bb6 Qa5 Bgd4 Re1 Kc1 Bh1 d2 Rh5 Ne3 Bg2 Nf1 Rg5 Nef5 Ne7 Bf4 Ng8 Ne7 Rh5 Qc6 Qc7 Qe4 Qd8 Bb8 Qd6 Qg6 Ka2 b3+ Ka3 b2 Na1 b1B Rd5 Bb2+ Kb4 Qc2 Rc5 Ba2 Rf5 Be2 Bd5 Bf3 Rfe5 B6a7 Qac7 Rc6 Rf5 Bab6 Qe5 Rg6 Qcd6 B6c7 Rg5 Bdc3+ Kc5 b4 Rf5 b3 Rh5 Nef5 Kc6 Bb6+ Kd7 Bcd4 Rg5 Bbc3 Rh5 b2 Rg5 Nh6 Ke7 b1N Rh5 Na3 Rg5 Ne8 Kf8 Nf5 Bf6 Nc4 Bd8 Ne7 Rh5 Bbc5 Ba5 Bb6 Rh7 Nc6 Rd7 Ne7 Rb7 Bd8 Rb6 Ng7 Rb5 B8b6+
1qBR3K/2n4r/4R3/5n1k/QBnr1nNb/1Nrr3b/p1QRr3/1Rq3Br w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 a5 e4 f5 g4 Kf7 b4 Kg6 c5 f3 e5 h3 g5 h4 e6 h2 c6 f2 e7 a3 e8R h3 b5 a4 c7 f4 b6 a2 b7 f3 Nd2 a3 Be2 f1N Re6+ Kh5 g6 Nf6 g7 Ng3 g8R Be7 Rg7 Na6 b8B Nf5 Nb1 Rh7 Rg4 f2 Rd6 f1N Qa4 Nd2 Bf1 Nc4 Re4 Qf8 Kc2 d3+ Kc3 d2 Rd8 d1R Nf3 Rd4 Be3 Ra7 Rg1 h1Q Rg2 h2 Re6 Ra8 Bd3 Qc1+ Rc2 h1R Nbd2 Qe8 Rb1 a1R Ne5 a2 Nb3 Rh2 Be4 Re2 Ng4 Bd7 c8Q Nc7 Bd3 Ra6 Bg1 Rc6 Ba7 Qf8 Bc5 Qg8 Be4 Rd3+ Kb4 d4 Rd2 Qe8 Bd6 Rc5 Bb7 Qf8 Qca8 Bc8 Qc6 Bd7 Bc8 Nfd5+ Ka4 Nf4 Kb4 Bh4 Qaa4 Rf3 Be7 d3 Qe4 Rd5 Bd6 Rd4 Kc5 Rg3 Qg2 Bc6 Qh2 Bg2 Be7 Bh3 Kc6 Ncd5 Kd7 Qh8 Qf2 Qe5 Ke8 Qb8 Kf8 Nc7 Kg8 Rge3 Rdb2 d2 Bb4 d1R Rd2 Rc3 Qg2 Rf1 Qe4 Rff3 Qc2 Rfd3 Be3 Ng7 Rb2 Qf1 Bf2 Rae1 Rb1 Nf5 Be3 Qg2 Bf2 Rh1 Be3 Qf1 Bg1 Rhd7 Kh8 Qc1 Nf2 Rf7 Ng4 Rh7+
3kbr2/2Nn4/1nBr1rn1/B1b3Kn/qNbQ4/1B3rpR/Qn5b/B2R1Q2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 f5 h4 g3+ Kf3 g4+ Ke2 b3 c5 b4 c6 b2 e5 b3 e6 g2 c7 d3+ Kd2 d4 a5 f3 a6 f4 a7 f2 h5 f3 e7 Bd7 c8B Qa5+ Nc3 b1B h6 b2 h7 Ba2 Ne2 g1B Nf4 Qa4 Ng6 Bc4 Rb1 Bh2 Be2 f1N+ Ke1 d2+ Kf2 d3 Na2 Ng3 Ke3 f2 Kf4 f1R+ Kg5 Rf3 Nf4 Nh5 Ne6 g3 Qf1 d1N Nb4 d2 Bb7 Bc6 Ra1 b1N Nc7+ Kd7 Ba3 Nb2 Bd1 Nc3 Bb3 Nd5 Rd1 B6b5 Bc6+ Kc8 Rc1 Nd7 Rd1 Rb8 a8Q N5b6 Na2 Rf6 Bb4 Rf3 Ba5 Rf6 Ra1 d1R Nb4 Rdd6 Rd1 Rf3 Be4 Rdf6 Qd5 Ra8 Qd4 Ra6 Bd5 Nf4 Ba8 Ng6 Bc6 Rd6 Qd5 Ngf6 Qd4 Rg8 h8B Nh5 Bf6 Bg7 Be5 Re8 Bf6 Bf8 Bg7 Rd8 e8Q Rdf6 Qee2 Bc5 Qc2 Rdf8 Qb1 Kd8 Qa2 Bg1 Rh3 Bh2 Qdf2 Bf7 Qe3 Bbc4 Qe4 Rd6 Bc3 Be8 Qd4 Nd3 Ba1 Nb2 Qdd3 Rdf6 Qd4 Nd5 Bb5 Rad6 Bc6 N5b6
1Q2r1B1/4b3/NrQRQ2b/R1q1b3/QRb1q2k/1n1p4/1K5n/BbrrN2b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Kf6 e4 Kg5 c4 f5 Kc2 d5 c5 b5 c6 g3 c7 b3+ Kb2 d3 h3 g2 a5 d2 e5 b4 a6 f3 a7 d4 e6 f4 e7 f2 e8R f3 Re5+ Kh4 Re1 g5 Bb5 f1R Re5 f2 Qf3 d1R Ra6 g4 Ra5 g3 Re1 Nh6 Ra1 Nc6 Qe2 Qg5 Qe5 Bb7 c8Q Na5 Qd5 Rb8 a8Q Be7 Re6 Re8 Nc3 Ng4 Qdc6 Qc5 Ne4 Nh2 Rd6 Rfe1 Ra4 f1B Qe6 Bc4 Bd2 Rc1 Bc3 Red1 Qaa6 Ba8 Ra3 Rb6 Nf3+ Kh5 h4 g1B Ra1 g2 Ne1 Be3 Rf1 g1B Rf4 d3 Rg4 Bh6 Bg7 Nb7 Qa4 Na5 Bc3 Bd4 Ra3 Qg5 Nc5 Be5 Na6 Qe3 Qc5 Bf3 Qc6 Qc5 Rf4 Bcd5 Bc4 Bh1 Rf5+ Kg4 h5 Kh4 Ra1 Ra8 Rb1 Re8 Ka1 b2+ Ka2 Bhg5 h6 Nb3 h7 Bd2 h8Q+ Bh6 Ra1 b1B+ Kb2 Na5 Ba2 Bc4 Qf8 b3 Rf7 Qg1 Rf4+ Qg4 Rfd4 Qe4 Qh8 Bd5 Rb4 Bc4 Ka3 b2 Qhg8 Ra8 Qb8 Nb3 Qbb7 Bd5 Qa5 Nd4 Qf7 Re8 Qb8 Bc2 Bc4 Nb3 Qf5 Bf7 Be6 Bh5 Bg8 Bf7 Ra2 Ra1 Qab5 b1Q Qfd7 Bd5 Qe6 Qc1+ Bb2 Rb1 Qa5 Qe3 Ba1 Qc5 Qab5 Rbc1 Qa5 Bg3 Kb2 Bc4 Qab5 Bb1 Ra5 Bgf4 Qa4 Be5+
3qnN1N/1Rqr4/2BnQ3/n2p1RBb/1K1b2B1/n2qBn2/k1n1q2R/r1Q5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 b5 h4 g5 a4 f5 c5 b3 h5 f3 h6 f4 e5 Kd5 c6 d3 Kc3 f2 c7 b2 h7 g3 e6 g4 a5 f3 a6 g2 e7 d2 e8B b4+ Kb3 g3 a7 Bg7 Rh2 Nc6 Rh4 Bd4 Rh3 Na5+ Ka4 b3 Rh1 Nf6 Ba6 f1N Bg6 f2 Bgd3 Ne8 Rh6 Ne3 Qf1 d1Q Bdb5 Qe2 Na3 b1Q Nc4 b2 Ne5 Nec4 Nf7 Ncd6 Be3 Qbc2+ Kb4 b1N Nh3 g1N Qc1 f1Q Nhg5 g2 Rh2 Na3 Rb1 Nf3 Ne6 g1N Nf8 Ne1 Rb2 Bb7 c8Q Ngf3 Ba4 Rg8 h8B Qcc7 Bf6 Rg7 Nh8 Qd3 Bfg5 Qfe2 Qb8 Bc6 Bc8 Rh7 Qb6 Rg7 Bc2 Ba4 Bb1 Bd1 Bc2 Rh7 Ba4 Nab7 Qb5+ Nc5 Nf7 Ndc4 Ng6 Nfd2 Qb6 Qh5 Qb1 Nce4 Bh4 Nb5 Nfh8 d6 Bf5 Rd7 Qc1 Qf3 Nf8 Qff1 Rb3 Bh5 Bh3 Qfe2 Bg4 Ndf3 Bhg5 Rb8 a8R Nba3 Bb5 Rb7 Ka4 Rb8 Ra6 Na5 Rc3 Rb7 Ra7 Rb8 Qa6 Rb6 Qb1 Rc6 Rb3 Rc1 Rb7 Kc5 Qb2 Ra1 Qc1+ Kd5 Bc4+ Kc5 R3b6 d5 Rf6 Qe5 Qe6 Qec7 Rf5 N4d6 Qb2 Qe4 Bb5 Q4d3 Bc6 Kc4 Qb6 Kc3 Qb1 Kc4 Qd1 Kc3 Ra7 Kb2 Kb4 Ka2 Rb7 Qg2 Qc1 Qgc2 Bg1 Qce2 B1e3 Nec2+
B1Qrkq2/2QRq3/N3r1pN/2b3q1/2nrR2B/2Q3qr/5rBr/1KBb1n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 c4 b5 Kc2 f5 a4 d3+ Kb2 d4 e4 b3 h4 g3 c5 f3 a5 f2 c6 g6 a6 g2 a7 b4 e5 d2 h5 f4 c7 f3 e6 d3 e7 Nh6 Qe2 d1R Ra2 d2 Qb5+ Kf7 Qa5 Nf5 h6 Nd7 h7 Re1 Qa4 d1R Ba6 f1Q Rh2 f2 Be2 Ne5 Qa5 Ne3 Nh3 g1Q Qb6 Qg5 Na3 Bg4 Bf3 Qg1 Be4 f1Q Nc2 Rb8 a8B N5c4+ Ka1 Qff2 Rg2 Nf1 Ra7 b2+ Ka2 Qfc5 Re2 Rd4 Nf2 Qg2 Re3 Bd1 Ng4 b1R Beb7 Qf2 Bg2 Rb2+ Ka1 b3 Nb4 Qff4 Na6 Rf2 Qb7 Qd7 Qf3 Rd8 e8Q+ Kg7 Qe5+ Kf7 c8Q Ree2 Bh1 Rh2 Rb7 Ref2 Bg2 b2+ Ka2 Be7 Qeb8 Qe8 Rd7 Qf8 Qbc7 Ke8 Re5 Qg3 Qc3 Rf6 Re2 b1R Re4 Rb2+ Ka1 Rbf2 Kb1 Q5h4 Ne3 Re6 Nf5 Rg8 h8B Qd5 Rg4 Bc5 Re4 Qhe7 Bf6 Rgh8 Bfg5 R8h5 Nh6 R5h3 Bh4 Qdg5
2br2rb/k3r3/r2p1Q1Q/R1q2rBB/2Q2b1Q/3Rn1bK/B1Nnr3/N3q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 Kg2 b5 e4 g5 h4 g3 a4 d3 c4 b3 c5 g4 h5 d2 h6 b2 e5 b4 c6 b3 c7 Ne7 a5 Nd5 a6 Qg5 h7 Rg8 h8Q Bd6 e6 Nc6 a7 Nd4 e7 Nf3 Qe2 d1R Qh6 Nd2 Nf3 Ne3+ Kg1 g2 Kh2 g3+ Kh3 g1B Qg2 Bf2 Na3 b1R Bc4 b2 Nh2 f3 Ba6 f4 Ra2 Qc5 Qf1 g2 Qg7 g1B Ra1 Bg3 Bc4 f2 Be6 f3 Qc4 f1R Nc2 f2 Ng4 Rfe1 Qf6 f1R Ra5 Bdf4 Na1 Re2 Qa6 Rff2 Ba2 d6 Qc4 Kd7 Qce6+ Kc6 e8B+ Kb6 Bh5 Rb8 a8Q Rde1 Qae4 Ra8 Qh6 Ra6 Qef6 Ka7 Qed4 B1h2 Qh4 Rff1 Qdf6 Be5 Rg1 Rf5 Rf1 Bd4 Rf4 Be5 Rd4 Bgf4 Rd3 Bhg3 Qe6 Bh8 Qef6 Be6 c8Q Bd7 Qc6 Bc8 Ne5 Rd8 Nc4 Rg1 Na3 Rgg2 N1c2 Ra1 Qa4 b1Q Qb5 Qbb4 Qc4 Rb1 Na1 Qc3 Qfe6 Rb7 N3c2 Re7 Qf7 Bh2 Qff6 Rgg8 Bb2 Q3b4 Be5 Bfg3 Bf4 Qb1 Bg5 Qe1 Qhg6 Bf4 Qh6 Bhg3
1N6/3p1R2/BqQ1n3/2bn1r1n/q4Nr1/r1RBQ1N1/1rn1rrB1/k3BK1b w - - 0 1 illegal: No possible last move, all moves rejected
BNBK1kN1/pqBB1b2/2q1QNbb/bb1Q2b1/7b/b1r5/3nnR2/1R1r4 w - - 0 1 illegal: No proof kernel
nRb2Q2/1Q1B2r1/3R1Bk1/b2qqp1b/1Nrn1b2/K3Q1n1/3Qq1Bq/n2N4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 Kf7 c4 g5 Kc2 b5 Kb3 d3 a4 f3 h5 g3 c5 d2 e5 f2 h6 g2 c6 d4 e6+ Kg6 a5 d3 a6 g4 a7 g3 c7 Bd6 h7 Nf6 e7 Nfd7 Rh2 Rg8 h8Q Nc6 Qd4 Rg7 Rh7 Nb6 Ra3 Bf4 Ra1 Qd5+ Kb2 b3 Qe4 b4 Rh1 Nd4 Ne2 g1Q Ra5 g2 Rh5 Qh2 Rh7 g1B Qe1 d1Q Nbc3 d2 Bg2 f1N Ra6 Ng3 Na2 Rb8 Nec3 Qe2 a8Q d1B+ Qc2 Bge3 Rh4 Bd2 Qb7 Qee5 Rh7 Bh5 Nd1 Qe2 Rh8 Ra8 Ra3 Ra4 Rd8 Na8 e8B+ Kh7 Bd7 Kg6 Qg1 Be1 Qe3 Qe5 Kb1 b2 Bd2 Qd5 Bc3 Qe5 Qcd2 Qd5 Nc1 Qe5 Ka2 b1N Nd3 b3+ Kb2 Rc4 Nb4 Qd5 Ra5 Na3 Rb5 Qe5 Rd5 Nac2 Rf8 Na1 Ka3 b2 Rd6+ Qe6 Rg8 b1Q Rf8 Qe4 Bb2 Nc6 Bf6 Q4e5 Na6 Re4 Qdd4 Ba5 Qdd2 Rc4 Nb4 Nd4 Ra6 Q5d5 Bc6 Bd7 Rb8 Kf7 c8Q Kg6 Qf8 Bc8 Bd7 Qde5 Rd6 Q6d5
1q1B4/1n1N4/2NQbn1q/1KQ4n/2R1Rrbk/1B2r1n1/N1N2pp1/n1b1R2q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 a4 f5 e4 d5+ Kb5 b3 c4 d3 e5 b2 e6 g3 e7 g2 e8R d2 c5 d4 c6 d3 h3 f3 c7 f4 a5 f2 a6 f3 a7 Qf6 Re6 Nc6 Be2 f1N Ra6 f2 Re5+ Kh4 Rd5 g5 Ra5 g4 Na3 b1N Ra4 Qh6 Qb3 d1B Bf4 d2 Rdd4 g3 Nc2 Na3+ Kb6 Be6 c8Q Nf6 Bc4 Na5 Re4 Bdg4 Qd3 d1Q Qc5 Re8 Ne2 g1N a8N g2 Qdd6 Ng3 Nc3 Ngh5 Bb3 Ne2 Rac4 Neg3 Rhe1 Bg7 Na2 Rhf8 Qd8 Rf7 Bc7 Bf8 Qdd4 Bd6 Bd8 Bf4 Qdd6 Bc1 R1e3 Qh1 Re1 Nb1 Kb5 Nd2 Nb6 Ree7 Ba4 Ndb3 Nd7 Na1 Bb3 b6 Ka6 b5 Kb6 b4 Kb5 Nd5 R4e2 Rf4 Ree4 Kg5 h4+ Kf5 Qc8 Nb7 Qcc7 Ndf6 Qc8 Ng7 h5 Kg5 Qcc7 Kh4 Qcc5 Qg5 h6 N7h5 h7 Qh6 h8N Re8 Ba4 b3 Nf7 b2 Nfe5 b1Q+ Bb3 Qb2 Nc6 Qe5 Qdd5 Qb8 Qdd6 Bd5 Red4 Re3 Re4 Bde6
1b4nQ/qqN3N1/1q1bQ3/RqkNR1B1/rq1Rb3/1pr2rN1/5p2/n3KB2 w - - 0 1 illegal: No possible last move, all moves rejected
Rq1n4/1bK5/1RQN3q/2Q1b1Nb/r1Rrbrp1/5Nn1/B2Bbkpn/1N6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 h4 b5 c4 g5 e5 f5 e6 d5 a5 d3 h5 Kd4 c5 b3 a6 g3+ Kf3 d2 e7 b4 e8R g2 h6 b2 h7 b3 c6 Nh6 c7 Bd6 a7 Ng4 Rh3 Qd7 Ra5 Nh2+ Kf2 f3 Na3 b1Q Re2 f4 Qc2 d1R Re3 b2 Qe2 Rf8 h8Q+ Be5 Nc4 Qbh7 Rh6 b1B Na3 Nc6 Qb5 Bb7 c8N Nd8 Qf6 Be4 Rc3 Rd3 Rg6 Qh6 Qfc6 Qc7 Nb1 Qb6 Ke1 f2+ Ke2 Rf7 Bd2 f3+ Kd1 Rf4 Kc2 Qc7 Kb3 Qf7 Be2 f1B Kb4 f2 Nd6 Qfg7 Bd1 Be2 Bb3 f1N Ba2 Ng3 Raa3 Bh5 Ka5 g4 Kb6 Qe7 Be1 Ke3 Bd2+ Kf2 Qbc5+ d4 Rc4 Re3 Nf3 d3 Nf7 Qd7 N7g5 Qd4 Rd6 Re1 Kc7 Rd1 Bc1 d2 Ra6 Rb8 a8N Qe3 Nb6 Ra8 Nc8 Ra7 Rb6 Ra4 Ra6 Qd4 Ra8 Qe3 Qa3 Qa7 Qc3 Rf1 Qa3 d1B Bd2 Be2 Qb4 Rd1 Qbc5+ Kf1 Ba5 Rd4 Bd2 Bf6 Re6 Kf2 Nd6 B4d3 Re3 Be4 Rb3 Be5 Rb6 Qb8+
N1bqr3/K2Q4/1nBq1Q1n/B1R1R1BQ/q1p2n1b/5r2/3qp1rB/kq2N3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 f4 Kd5 d4 e5 g4 h5 a4 c5 g5 b5 f5 h3 f6 b3 f7 b4 g6 c3 g7 h4 a5 c4 a6 h2 a7 c2 Qe2 h3 Qd3 b2 Be2 b3 Bd2 c1Q Ra3 Nh6 g8Q Nd7 Qg4 Be7 f8B Nb6 Nf3 Rg8 Qh5 Rg2 Re1 Bh4 Bd6 h1R Qc3 h2 Ra5+ Kc6 Rb5 Rf1 Na3 b1Q Bb8 h1Q d5+ Kd7 d6 Kc6 d7 b2 Rd5 Qa2 Nb5 b1Q Nc7 Qh2 Rc5+ Kd6 Bd3 Qa4 Re2 Qca3 Ne1 Rf4 Qa1 Rf1 Ba5 Rf3+ Kd2 Qaa2+ Kc3 e3 Be4 Qf4 Bb7 e4 Kd4 Qg3 Bc6 Qd2+ Nd3 Qg6 Re1 e2 Qb2 Qdg8 d8B e3 Bg5 Q8e8 Nb5+ Ke6 Bh2 Rb8 a8Q Qd8+ Rd5 Qgf6+ Kc5 Qe5 Qa7 Qef6 Rg1 e1N Qc3 Qe5 Nc7+ Kf5 Na8 Ke4 Qd7 e2 Nb4 Qe6 Nc2 Qg6 Qf6 Nd3+ Kd6 Nf4 Ne1 Qc3 Re5+ Kd4 Rh1 Qd2 Rf1 Rfg3 Rf3 Rh3 Rb3 Rf3 Rbb5 Qgd3 Rbc5 Qda3 Bb5 Q3b4 Kc6+ Kc3 Qd3+ Kb2 Qd7 Qe7 Kc7 Ka1 Kc6 Ba6 Kc7 Re8 Bc6 Bc8 Kb8 Qd8 Ka7 Qd6 Qhf7 Q4b2 Qh5 Qbd2
6rN/Bq2KRRb/bnB1N2n/Q7/pQrNQq1r/3r3Q/4p2b/2kr2n1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 Kc4 b5 e5 c3 d5 f5 h5 f6 a5 b6 e3 Kf3+ e2 b7 e4+ Kf4 e3 Kg5 a3 Qd2 Kb3 c4 e1N c5 d3 c6 d4 c7 a4 Nf3 e2 Rh3 a2 Qf4 Kc2 Nbd2 Bd6 Ne5 Nd7 b8N Nb6 Ndf3 d2 Bg2 d1R Nbc6 d3 Qe4 Qf8 f7 Ba6 c8Q Nh6 Ng6 Bh2 Rg3 h3 Kf6 h4 Ng5 Nf3 Be3 Ng1 Ne6 Qd6 f8Q Qf4+ Ke7 Rb8 Rb1 a1R Rb5 Rac1 g5 Rg8 Qc7 Rd8 Rf5 Kb1 Bf2 Rc4 Ncd4 Kc1 Nh8 d2 g6 Rd6 g7 Rd8 Nc6 Rd3 Rgg5 Re1 Qcc8 d1B Ncd4 Bc2 Rf7 Red1 Qc5 Bg3 Qb5 h2 Qa5 h1Q Qb8 h3 Qbb7 Rf8 g8Q h2 Qgh7 Rg8 Rgg7 Bb1 Bf3 Qg2 Qhf5 h1R Qh3 Bh2 Qb8 Bc2 Qd6 Bb1 Qdb4 Bc2 Qg6 Bb1 Bc6 Qd5 Qe4 Bc2 Bd7 Qb7 Qhf5 Rf3 Qee5 Na8 Nc6 Bg3 Ba7 Rh4 Qh3 Bh7 Ncd4 Bh2 Qed5 Nb6 Qe4 Qa8 Be8 Rfd3 Bc6 Qb7+
2R1r2q/n4Q2/3k2NN/1Rr1pbQ1/1nbnK3/b1NR4/2b1BRrp/B1q1b3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 e5 g4 b5 a5 e3 Kd3 e2 c5 e1B g5 b3 g6 b4 g7 h3 a6 h4 a7 b2 c6+ Kd6 f5 h2 c7 h3 f6 b3 f7 Ne7 g8N Na6 Nh6 Nb4+ Ke2 d3+ Kf3 d4 Qe2 d2 Ra6+ Nec6 Ra4 d1Q Ra6 d3 Bf4 d2 Ra2 Qc1 Qe4 d1N Be3 Rg8 Qf4 Rg2 Nc3 b1R Ke4 b2 Bd4 Ne3 Nf3 Nf5 Be2 Be6 c8R Bc4 Rf1 h1B Ra5 h2 Rf2 Ra1 Rc5 Ra5 Nh4 Rb5 Qg5 b1B+ Bd3 Be7 f8Q Bc2 Qf7 Qh8 Ng6 Rab8 a8R Na7 Ne2 Bf8 Ba1 Nd4 Nc3 Ra5 Rb5 Be7 Rg8 Re8 Rc8 Bf8 Rb7 Rc5 Rb5 B2b3 Be2 Bd1 Rf3 Bc2+ Rd3 Nd5 Ne7 Rg3+ Qf3 Rc7 Qe3 Ke6 Qg1 Bg2 Nf7 Bh3 Nh6 Rg5 Qge3 Rg2 Ng6 Ba3 Rf8 Kd6 Qg5 Nb4 Qff6+ Bhe6 Qg7 Bd7 Rf2 Rc5 Qf7 Bf5+
1n6/3bK1N1/Q2BR1rk/r2pqBrq/Q2n4/BBR5/np4bR/rNr1b3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 Kf7 a4 Kg6 c4 b5 h5+ Kh6 e5 g5 a5 g3+ Kf3 b3 c5 b2 e6 b4 e7 g2 e8Q g4+ Kf2 d3 a6 g3+ Kf3 d2 a7 b3 c6 Qf6 c7 Bd7 c8R Ne7 Ne2 g1R Rc6 g2 Rc3 Nec6 Rh2 Qe5 Qc8 Rg8 Nd4 Rg5 Bc4 Bb4 Qa6 Rg6 Ne6 Nd4+ Kf2 f3 Ng7 f4 Ra2 Kh7 h6 Rh1 Bd3 g1R Bf5 Rg5 Qc2 d1Q Ra5 Kg8 h7+ Kf7 h8B Rhg1 Nd2 b1N Ba3 b2 Qa4 Kf8 Rac5 Rh1 Re3 Nc3 Nb1 Na2 Rc6 Kf7 Rec3 Kg8 Re6 Ba5 Nh5 Kh7 Bf6 Kh6 Bfe7 Qb3 Beb4 Rc1 Bd6 Qd1 Rg2 Qh1 Ng7 Qh5 Rh2 Bb4 Rb3 Rc5 Rc3 Ra5 Bc5 Nbc6 Bd6 Rc8 a8B Nb8 Bc6 Rc7 Kf1 f2 Bb5 Rc6 Bc4 Rcc5 Bb3 Rc6 Rg3 Rc1+ Kg2 f1B+ Kf2 f3 Rgh3 Qf6 Ke3 f2 Kf4 Be1 Rc3 Qe7 Ke5 Bg2 Bc7 Qf6+ Kd6 Qe5+ Ke7 f1R Bcd6 Bh4 Kf7 Rfd1 Ke7 Be1 Nd2 Ra1 Nb1 Rc1
qrq3Bq/1br2BB1/NN6/2p4n/n1N3Rn/N1qQrR2/kq1pK1Q1/4b3 w - - 0 1 illegal: No possible last move, all moves rejected
1Nkb2n1/RNr2n2/1q3B2/p6R/2BQ1np1/B2N1bqr/1Nn5/q2n1KrQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 b4 d5 h4 Kd7 e4 f5 c4 a5 c5 g5 b5 a3 h5 g3 h6 d3 h7 g2 e5 g4 b6 d2+ Kf2 d4 b7 d3 Ne2 g1R Qb3 d1N+ Ke1 a2 Be3 f3 Nc1 f4 Rh5 f2+ Kd2 f3 Qb2 Be7 Nc3 Rg2 Rb1 a1N Na4 Nc6 b8N+ Kc7 e6 Nc3 Bf4+ Ne5 c6 Nd5 Qd4 Bb7 Nb2 Kc8 c7 Nf7 Bd6 Nc2 Ba3 Ra7 Be2 Bh4 e7 f1Q e8Q f2 Qee4 Qg1 Qf3 f1Q Qh3 Qff6 Qh1 Qgf2 Kd1 d2 Bc4 Qb6 Ncd3 Qg3 Rc1 Qdf6 Rb1 Rg1+ Ke2 d1N Rc1 Qg7 Rb1 Rg2+ Kf1 Bd8 Rc1 N1c3 Re1 Nf4 Re7 Bf3 Rd7 Kb7 Re7 Nd1 c8N+ Ka8 Nd6 Rc7 Ne4 Kb7 Nec5+ Kc8 Rd7 Rc6 Ra7 Rc7 Nb7 Qa6 Qc5 Qc3 Qd4 Qb6 Bb4 Qa3 Be7 Qa2 Ba3 Qa1 Rb5 Ne7 Rg5 Rg8 h8B Rg6 Ba2 Ng8 Bf6 Rh6 Bc4 Rh3 Rh5 Rg1+
2bk2r1/1q2b2q/2r1pb2/2rqR1K1/B1pb1QNn/7R/RN3R2/n2bBBQ1 w - - 0 1 illegal: No possible last move, all moves rejected
qb4nk/b1Q5/2bp3q/br1R2rn/2b1q2R/Q1N1Bn2/1N1Q1Kp1/1NQB4 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 e5 f4 b5 c4 g5 f5 Kg7 a5 e3 c5 d3 c6 e4 a6 d2+ Ke2 g3 h5 g4 a7 g2 c7 g3 Nh3 g1B Ba3 b3 Be7 b4 Qc2 d1B+ Ke1 e2 Ra3 b2 Bd6 g2 Qb3 Ba6 c8N Bc4 Qd3 b3 Bf4 Bd6 Be3 Rh7 h6+ Kh8 f6 Rg7 h7 Rg5 f7 Be5 Nd2 b1Q f8Q b2 Qf4 Qc1 Ne7 b1Q Nf2 Ba4+ Nd1 Bc6 Nd5 Bc7 Ra2 d6 Ra5 Nd7 Rh4 Bb8 Nc3 Ndf6 Rd5 Nh5 Qf7 Qf8 Qc7 Qa3 Qc2 Qh6 Qc1 Qb7 Ndb1 Qab4 Kd2 e1N Nb2 Qa5 Bd3 Nf3+ Ke2 Qaa6 Bd2 Bb6 Be3 Qa2 Kf2 Ba5 Bb6 e3+ Ke2 Bb4 Qf7 Qe7 Nd1 Qee6 Qc7 Be1 Bc5 Bf2 Bb6 Qe7 Bc5 Kg7 h8Q+ Kf8 Qd4 Qe4 Qdc3 Qa3 Q3d2 Qa2 Qc8+ Kg7 Ndc3 Kh8 Qd7 Bc7 Qd8 Rb8 a8Q Rb5 Ba7 Bb8 Qc7 Qa6 Bc5 Qb7 Qa3 Qa8 Bb6 Bg1 Ba7 Nh2 Ke1 e2 Bc2 Bb6 Bd1 Ba5 Kf2 e1B+ Kg1 Bg3 Bb6 Be5 Ba7 Nf3+ Kf2 Bg7 Be3 Bd4 Qb4 Bc5 Qa3 Bca7
q1nR4/q2Q2Q1/nr1p2b1/1Rq5/r1qpN3/2qnkNKr/2Rb4/QR1BB3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 g4 Kd6 c4 Ke5 e4 h5 a4 b5 c5 f5 g5 d6 g6 f3 a5 b3 c6 h3 g7 b2 c7 b4 a6 h2 a7 b3 Na3 b1R Qc2 h4 Bh3 f4 Qd2 b2 Ne2 Qe7 Qc2 Bf5 c8Q Na6 Q2c6 Bg6 Be6 h3 Re1 h1Q Bg4 h2 Ra2 Rh3 Q6b7 Qd7 Nc2 Ne7 g8Q Bh6 Qc3 Nc8 Ng3 Qc6 Ra5+ Qc5 Bd2 Bg5 Re2 Qc1 Ne1 h1N+ Kg1 f2+ Kg2 Qc2 Qd7 Qd3 Qa3 Qc3 Qa1 Bh6 Rb5 Bg5 Be3 Bh6 Kf3 f1Q+ Rf2 Qg1 Rc2 Nf2 Qgf7 Nd3 Bd2 Qe3+ Kg2 Bg5 Bd1 Qg1+ Kf3 Qh1+ Kg4 f3 Qg8 f2 Nf3+ Kf6 Be1 f1Q Qgh7 Bc1 Qdg7+ Ke6 e5 Kd5 e6 Bd2 e7 Qe2 e8R Qe6+ Nf5 Ke4 Rd8 Qec4 Ng3+ Ke3 Ne4 Rb8 a8R Rb6 Qa4 Ra1 Rb8 b1Q Qd7 Qbb4 Qhg7 Qa5 Qa3 Ra2 Qc1 Ra4 Qa1 Nc7 Rb1 Qa7 Rb5 Na6 Rb1 Rc6 R8b5 Rb6 Nh2 Qf7 Ng3 Qhd5 Ne4 Qda8 Nf3 Rh2 Kg3 Qfc4 Ra2 Rh8 Rc2 Rh3+
q2rq3/bbRq3p/Bk1n4/q2r3N/Qn1r1Q2/R2qbp2/NB6/4KRBB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 g4 Kc6 d4 b5 e4 f5 e5 c3 d5+ Kb6 d6 c5 d7 c4 e6 f3 g5 h3 g6 f2+ Ke2 f4 g7 c2 e7 h2 e8B b3 Nd2 b4 Ra2 c3 Ba3 c1Q Ne4 b2 Qd2 b1Q Qd3 c2 Qb3 Bb7 Qd5 b3 Nh3 b2 Qc4 Nf6 g8R Na6 Rgg1 Nb4 Rg7 Ra5 Nc3 Rd5 Bg2 Qb8 Rf1 Bc5 Bh1 Qa1 d8B+ Qc7 Rd7 b1R Bb2 Ne4 Ra3 Nd6 Na2 Rf8 Bdf6 Qb8 Bh5 Rd8 Rc7 Qc8 Bfd4 Qd7 Bg6 Qe8+ Be3 Qd7 Bd3 Qe1+ Kf3 c1B a5+ Ka7 a6 Kb6 Bed4 Qee8 a7 Be3 a8Q Rd1 Qa4 Rd2 Qc1 Rd1 Ba6 Rd3 Bg2 h1Q Ke2 Rd1 Be4 Qg2 Bf3 Qgg8 Bh1 Qgf8 Bdc3 R1d4 Bd2 f3+ Kd1 Qb1 Nf4 Qd3 Nh5 Qh8 Qb1 Q3b5 Qf5 Qa5 Qf4 Nd3 Re1 f1Q Bdc3 Nb4+ Bd2 Qc4 Rf1 Qd3 Ke1 Qc8 Bdc1 Qa8 Bd2 Qg7 Bdc3 Re4 Bf6 Qgd7 Bh4 Rc4 Bf2 Rcd4 Bg1 Qdc8 Rg7 Qcd7 Re7 Kc7 Rg7 Ba7 Rf7 Kb6 Rg7 Qg4 Rc7 Qgd7
2q2k2/NQ1Bnp2/Q3rb2/1nR2R1p/KrN2r2/QQB1nqBn/b1b5/n7 w - - 0 1 illegal: No possible last move
r7/1n1p2Q1/1RBb1Nb1/1r3r2/pBqN2nk/3nQ3/2QnQn2/K1qR1qB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 c4 Kf6 Kc2 Kg5 g4 h5 e4 a5 b4 f5 Kb2 h3 e5 a3+ Ka2 a4 e6 h4 b5 h2 c5 d3 e7 h3 e8Q d2 c6 f3 c7 f2 b6 f4 b7 f3 Qe5+ Kh4 g5 Na6 b8B Nh6 g6 Bd6 g7 Nc5 g8Q Bb7 c8Q Qc7 Qge8 Be4 Qg6 Ng4 Qd5 Rh5 Q5b3 Nb7 Ba7 Qc4 Qe2 d1N Nd2 Rb5 Rb1 Nc3+ Ka1 a2 Qf7 Bg6 Bg2 f1R Qg7 f2 Rb2 Nb1 Qbe3 Re1 Bd5 f1Q Bc6 Rd1 Ne4 Rdd5 Rb3 Rf5 Ba3 Qfc1 Nf6 Qf1 Kb2 a1N Bd4 Nc2 Bb4 Ne1 Ka1 Nd3 Nf3+ Kg3 Ng5+ Kh4 Ne6 Qfc1 Rf1 h1Q Rd1 h2 Bdc5 Qf1 Nd4 h1N Bb6 Bf8 Qc7 Nhf2 Qh2+ Nh3 Qc2 Bc5 Qhe2 Nhf2 Bc7 Be7 Be1 Bb4 Bh2 Rba5 Bg1 Bd6 Rb6 Rab5 Bb4 Nd2+
1Bkn1Q1r/1r1pKb2/2q5/pnb2RQ1/2bn1R1q/n4NN1/1NR5/1r3nNB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Rh2 a5 Kf2 h3 e4 h5 Kf3 h4 Kg4 f6 Kf5 Qb6 b4 Ra6 c4 Ra7 g4 Ba6 b5 Kd8 e5 a3 g5 a2 g6 f3 e6 d3 g7 d2 Rf2 h2 c5 h1B c6 h3 Bg2 h2 e7+ Kc7 e8R Bc5 Ree2 Nh6+ Kg6 f5 Kf6 f4 g8N Kd8 Ne7 Nf7 Nf5 Kc7 Qf1 d1N Rc2 Nc3 Qd1 Nd8 Nd2 Qb7 Ng3 Qa8 Rf1 f2 Qh5 f3 Qg5 Qb7 Rb1 Qc8 Rb4 a1N Ra2 Nc2 Re4 Ne3 Rc2 Nc4 Rd4 Na3 Bb2 Kb6 c7 Kb7 Nc4 Nbc6 b6 Bb5 Bc1 Ba6 Nb2 Be2 Bd2 Ncb5 Bf4 Bd3 Rd5 Ncd4 Bd6 Bg6 Ke7 Be8 Re1 f1R Re4 f2 Rg4 Ka6 b7 Rb1 b8N+ Kb7 Nc6 f1N Ne5 Qa8 Bf3 Bg2 Rh4 h1Q Re4 Qh6 Rh4 Bh3 Bh1 Be6 Nef3 Bg6 Re4 Qh4 Rde5 Bc4 Rg4 Kb6 Rd5 Qc6 c8Q Rb7 Re5 N8e6 Rf4 Bf7 Qf8 Nd8 Ref5 Bb4 Bc5+ Kc7 Bd6+ Kc8 Ne1 Bc5 Nef3 Ba7 Bb8 Bc5+
2RK4/2p3Qb/kqR1qQbn/1NB1qrNr/1Rp4R/Nr1B4/3qq3/bn6 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 f5 g4 h5 a4+ Ka6 d4 b5 e4 b3 g5 h3 a5 b4 d5 f3 g6 b2 d6 f2 g7 h2 d7 h4 Ke6 h3 e5 f4 Qd6+ Nc6 Qd3 f3 Na3 b1B Nb5 b3 Qc2 b2 Qd1 Rb8 Na3 Nh6 g8R Ne7 Qd4 Bg6 Rb1 Nd5 Bd3 f1R Be3 f2 Nf3 Rb3 Ng5 Bg7 Qg4 Rh7 Bc5 Nc3 Rf8 Bb7 Rf6 Bbe4 Qg1 Qg8+ Ke7+ Qe6+ Kd8 Bh8 Rf4 Bg7 Rh4 Bh8 Qg2 Bef5 Rg1 h1Q Qg4 h2 Rg3 Qd6 e6 Qg2 e7 h1Q e8N Qe5 Nd6 Qhh3 Ndb5 Qgd5 Rf3 Qde6 Rf4 Qhe3 Rd4 Qd2 Rd6+ Kb7 Rc6 Bg7 Ra1 b1Q Qg2 Qbb2 Rc1 Nb1 a6+ Ka8 a7 Kb7 a8R Qbd4 Bb4 Qb6 Rc8 Ka6 Rc2 Rh8+ Bf8 Bh7 Rb2 Bfg6 Qg4 Rh1 Qg3 f1Q Qg4 Qfe2 Qg2 Ng8 Bc5 Rf1 Qg3 Rf5 Qg1 Rc3 Rb4 Rb3 Qg4 Q5d6 Qg1 Ba1 Qd4 Qdd5 Qg7 Qde5 Qf8 Q5h2 Qh6 Ne7+ Qf8 Bg8 Qf7 Rh7 Ke8 Rh5 d8Q B8h7 Qd4 Qg3 Kd8 Ng8 Qdg7 Qge5 Qff6 Nh6
bN1K1qN1/1p6/B1NR2nn/2r1rk2/7p/3bbbR1/2q2Bb1/rNQQ1Rq1 w - - 0 1 illegal: Other
4RQ1b/pq1b4/BbnNr2b/Bn1B3K/Bp3QQ1/r1k3r1/R6N/1bq2n2 w - - 0 1 illegal: No proof kernel
K7/3Qrq1b/2nn3r/1B4nn/1p1N1n1R/B2N2nN/nRpb1rk1/2BQ3N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 h5 a4 f5+ Ke5 b5 d4 h3 e4 c3 g4 b3 g5 b2 a5 f3 a6 f2 a7 h4 g6 c2 g7 f4 Bd2 c1N Qe1 h2 Bd3 f1R Ra2 f3 Na3 b1N Qf2 b4 Qg3 f2 Qh3 Qd7 Qg3 h3 Nb5 Na3 Qf3 Ne7 g8N Bh6 Qd1 Nd5 Nf6 Qf7 Nh5 Bf5 Rb2 Na2 Ng3 Bh7 Bc1 Nf4 d5+ Kc5 Nd4 Nb5 Be2 Nd6 Bb5 c6 Rb3 Re1 Ba3 f1N Rb1 Nd2 Rb2 Nf5 d6 Rf1 d7 Rf2 d8B Nd6 Ba4 Kc4 Bf6 Kd3 Bb5+ Ke3 Bh4 c5 Bg5 Bf8 Bh6 c4 Bg5 c3 Bh6 Na6 Bg5 Rc8 a8N c2 Nb6 Nb8 Na4 Rc7 Nc5 Be7 Bh6 Bg5 Nd3 Re7+ Ne6 Nh5 Kd5 Nf3 e5 Nf4+ Kc5 Nc6 Kb6 Rc7 Nd4 Re7 Bg7 Bh6 e6 Ng5 Ka6 Rc7 e7 Rb7 e8Q+ Re7 Nh5 Ke4 Qd7 Ke3 Ngf3 Ke4 Ng3+ Ke3 Rf1 h1N Ng1 h2 Kb6 Nc1 Nh3 Na2 Nh5 Ng3 Rh1 Ngf5 Bf8 Ng7 Ng3 Ngh5 Ka6 Nb8+ Ka7 Nc6+ Ka8 Re5 Rf1 Re7 Nh1 Ke4 Ne2 Kf3 Nd4+ Kg2 Re1 Rg8 Re4 Rg6 Ng3 h1N Bg7 Nd5 Rh4 Ndf4 Be5 Ne2 Bf4 Rf6 Be3 Nef4 Ngf5 N1g3 Bc1 Nge2 Ng3 Rfe6 Nh1 Neg3 Ne5 Bg7 Nd3 Rh6 Nf5 Bc3 Nd4 Bd2
1q6/k1Np1b1N/bNb1Qp1b/3n2b1/N7/r2Q1nBQ/b1Bbr2n/1RR3K1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 e4 d3 h4 d2 c4 f6 c5 b3 c6 g3+ Kg2 b2 h5 b4 c7 f3+ Kh3 b3 a5 f2 Kg2 g4 a6 Ne7 e5 Bh6 a7 Nd5 e6 Ba6 c8Q Nc6 e7 Nd4 Qdc2 d1B Nc3 b1B Rh3 b2 Kh1 g2+ Kh2 Ba2 Qc5 b1B Bd3 Bf3 Qc6 Qb8+ Bf4 B2c4 Qb3 Ba2 Bc2 Be4 Nf3 g1B+ Kh1 f1N Bg3 Bge3 Rc1 Nh2 Na4 Bd2 Kg1 Rf8 Ng5 Ndf3+ Kf2 Rg8 Nh7 Rg5 Qd3 Re5 Qe6 Bhg5 h6 Bcb3 Bh4 g3+ Ke2 g2 Kf2 Bbc4 Bg3 g1B+ Kg2 B1e3 Rb1 Ng4 Rhh1 Ngh2 Rhc1 Bcb3 Nf8 Bbc4 h7 Bh6 h8Q Beg5 Qa3 Nc3 Qad6 Bc6 Qd3 Nd5 Qhh7 Re2+ Kh1 Bg7 Qhh3 B7h6 Nh7 Bcb3 Qef5 Kf7 e8N Ke7 Qe6+ Kd8 Nc7 Kc8 Qef5 Nb4 Qe5 Bf7 Qee6 Kb7 Nd5 Re3 Ndb6 Nd5 Kg2 Qc7 Kh1 Re8 a8N Ka7 Kg2 Qb8 Nc7 Re7 Qdf5 Ra3 Qd3 Ne1+ Kg1 Re8 Qef5 Re2 Qe6 Nef3+
1K2R3/R2Q1q1N/B1r3r1/3n4/B2kn1p1/q2B2NR/1b1b1pQB/1nr1nbq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 c6 b2 c7 b4 Qb3 d1N Qc4 b3 Nd2 b1Q Rh6 b2 Nh3 g1B Qf7 d3 Nf2 g4+ Kg2 f3+ Kg3 Ne7 Nh1 f2 Be2 f1Q Ra2 f4+ Kh4 f3 Kg3 Na6 Rh3 Nd5 Qd7 Rg8 h8R Kd4 e5 Nc3 e6 Bg7 e7 Nb4 e8B Ba6 c8B Qa5 Ne4 d2 Nf6 d1R Bf4 Rc1 Bd3 Qa3 Nh7 Be3 Bb7 Rb8 a8Q Bd2 Bc8 Bc4 Ba6 Rb6 Bc7 Rc6 Bd6 Ne3 Kf4 Nbc2 Ng3 Ned5+ Kf5 Ne1 Ke6 Ne4 Ra1 Nc7+ Ke7 f2 Kd8 Qg1 Kc8 Nd5+ Kb8 Qba2 Qf7 Nc7 Qa7+ Nc5 Bf5 b1N Qd5+ Kc3 Bb7 Rb6 Qg2 Bf1 Bd3 Qa5 Nh5 Ne4 Bh2 Qf7 Ng3 Nd5 Ra4 Bd4 Ra2 Rg7 Beb5 Rc6 Re8 Qa6 Bc8 Qa5 Qd7 Rgg6 Bb7 Qb4 Ra7 Qa3 Ba4 Bh8 Bdc2 Kc4 Ba6+ Kc5 Bcd3 Bb2 Bc8 Kd4 Bb7 Ke3 Bba6 Kd4
b7/2Q2R2/N1RBr2n/2rkN1qp/2n2r1p/3r1qQn/2K1QB1b/1b1BQ2q w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 g4 Ke6 f4 b5 c4 h5 a4 d5 g5 b3 g6 b2 c5 b4 a5 b3 c6 d3 a6 d4 f5+ Kd5 a7 e5 f6 e3+ Ke1 d2+ Ke2 e4 f7 Nd7 c7 Bd6 f8B Bb7 c8Q Qg5 g7 Bh2 Be7 Nb6 Qe1 d1R Nd2 b1B Bb4 b2 Ra4 Nc4 Nb3 Nh6 Bd6 Rd3 Qc7 Rhf8 Nc5 Rac8 a8Q Rf4 Nf3 Bc6 Qaa7 Ba8 Qe7 Rc6 Na6 Rc5 Bg2 Nf7 Qac7 Nh6 Kf1 e2+ Kf2 Rd2 Rf1 d3 Ra1 Rd1 Be3 d2 Bh3 Rb5 Ba7 Rc5 Bg4 e3+ Kg2 Bc2 Rc1 b1Q Ne5 Qb3 Rf3 Bb1 g8Q+ Kd4 Qgb8 Qa3 Qb3 Kd5 Qc3 Qb3 Qg3 e1N+ Kf1 Nd3+ Ke2 Nf2 Rc2 Nh3 Kd3 e2 Rf2 Re4 Rf7 Rf4 Bb6 e1Q Ba7 Rc1 Bd1 Qh1 Qe1 Rc6 Bf2 Qb7 Ke2 Rc5 Qg3 Qc6 Kd3 Qb7 Be2 d1R+ Kc3 Rd2 Bd1 Qc6 Kb3 Rd3+ Rc3 Rc2 Qe8 Re2 Qee7 Ree3 Qe8 Ba2+ Kc2 Bb1+ Kc1 Ra5 Qcb8 Na3 Nc4 Kd4 Qf3 Ba2 Qg3 Qcf3 Qc7 Kd5 Qee7 Re2 Qe3 Rb5 Q3d2 Re5 Qde2 Re6 Ne5 Ra5 Rc6 Rc5+ Kb2 Nc4+ Kc2 Bb1+
1q1b1R1b/Nq3Nq1/r2n2KB/4pBQB/B2n3r/k2r1b2/p1q4N/3n1QR1 w - - 0 1 illegal: No possible last move, all moves rejected
b5RB/1N2B1KR/q3N1Q1/1Bp2b2/1p6/2k2rqR/2r2Qqn/r1Brbnn1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 Kd4 a5 b5 d3 g5 a6 f5 e5 f3 Kg3 c3 e6 b3 h5 c2 a7 b2 h6 f2 e7 f4+ Kh2 g3+ Kg2 g4 e8R Bb7+ Qf3 Qf6 h7 Nh6 Re3 Nd7 Ra2 Ne5 Bd2 c1R Nc3 b1B Ne4 Rc2 Nc5 Qa6 Bc1 Kc3 Nh3 b4 Ra4 Be7 Ng5 Rhd8 Nge6 Bh4 h8B c6 Be2 f1R Qf2 Rd4 Ra1 Nf3 Ra4 Rf8 a8Q Ng1 Qe8 Ba8 Nb7 c5 Qg6 Re1 Rh3 Rf5 Re5 Rd5 d4 f3+ Kh1 g2+ Kh2 Rd7 d5 Rd1 d6 Rf4 Nbd8 Ra7 d7 Rf7 Bb5 Rf5 Qe2 Be1 Qf2 Rf8 Kg3 Rf6 Kh4 g3 Kg5 Ng4 Be2 Nh2 Kh6 Rf5 Nb7 Rf7 Qf1 f2 Bb5 Rf3 Qe2 f1N d8B Rcd2 Kg7 Bf5 Rh7 Rc2 Ra5 Nh3 Rd5 g1Q Qf2 g2 Be7 Qh1 Rd7 g1Q Rd8 Qg3 Rg8 Qhg2 Ra2 Re2 Rd2 Ng1 Rd4 Rc2 Rdh4 Qb6 R4h5 Ra1 Rh3 Qa6
3nn3/K1kbr1Q1/3q1rp1/1R3Br1/1n1B4/r1bBRBNp/QqR5/3bNq2 w - - 0 1 illegal: No proof kernel
K3B3/b3n3/q1brp1nR/B6r/Nb1QRqrn/3rN2q/1pQB1k1N/2B5 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 d5 h4 g5 a5 b5 a6 b3 c5 b4 c6 g3 h5 Kg4 h6 e6 h7 g2 f5 Kg3 a7 d3+ Ke3 b2 Kd4 d2 f6 e3 f7 b3 c7 e2 Nc3 e1Q Nb5 b1Q Bc4 b2 Nh3 g1B+ Nf2 g4 Rh5 Nd7 Ra5 Qf6+ Re5 Qf1 Bd3 Qa1 Nd6 Qf4+ Re4 Ne5 Kc5 d4 Kb6 Qh3 Nc4 Ng6 Rh5 Bb4 f8B Bb7 c8Q N8e7 Ne3 Bc6 Bb5 d3 Rh6 Qa4 Qc2 d1R Qd8 d2 Qd4 Qa1 Bg7 Rag8 a8N Qa3 Be5 Qa6+ Kc7 Kf3 Nb6 g3 Na4 g2 Nfg4 Bf2 Bd6 g1N Nh2+ Kg3 Be5 Nf3 Bd6 Nfh4 Be5 Bb7 Be8 Bc6 Kb8 Bg1 Bc7 Kf2 Qb3 Nf8 Qc2 Rg4 Qdc5 Nfg6 Qd4 Rf8 h8B Rf5 Bf6 Rh5 Bg5 Rf1 Qcc4 d1R Bd2 Rfe1 Qc2 Re2 Bc1 Rd3 Bd2 Qf8 Bc1 Red2 Ba5 Qf4+ Qd6 Qe5 Nc4 Kg3 Nc5 Rd5 Na4 R2d3 Bgd2 Qf4 Qe5 Bb6 Ne3 Rd6 Qd4 Kf2 Qe5 Bb5 Qd4 Ba7+ Ka8 Bc6+
R2b1RQn/1r2N2Q/1p1nK2b/BN4nq/6bR/2rpb2q/6BN/3rkq1R w - - 0 1 illegal: No possible last move
1nB1rBr1/1N1N3p/1RQn1Q2/Nr3bbb/4R3/n3q2r/K1qk1N1p/3q2Q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 g4 Ke6 c4 Ke5 Kc2 Ke4 Kb3 d5 a4 b5 e3 f5 g5 d3 c5 d2 a5 d4 a6 f3 g6 f4 a7 f2 g7 h3 c6 d3 c7 h2 Ba3 f3 Ka2 b3+ Kb2 b4 Be2 f1R Nh3 f2 Bg4 Ne7 g8N Bf5 c8Q Qd4+ Qc3 Nc8 Qc1 Rd1 Re1 f1R Ra2 Qc5 Qf6 Rf3 Ra1 Bh6 Nf2+ Kd5 Ra2 Nd6 Ka1 Qb6 Rb2 Rh3 Re2 Rh1 Qg1 Kc4 e4 d1Q e5 d2 e6 Bg5 e7 Qe3 e8N Qc2 Re1 d1Q Re2 Bg6 Bc8 Bh5 Re1 Qdd4 Nd2+ Kc3 Rbb1 b2+ Ka2 Qe6+ Nc4 Qe3 Qf7 Qdd1 Na5 Kd2 Ngf6 Rf8 Nd7 Rg8 Qf1 Rg1 Qf6 Rg4 Qg2 Re4 Qg1 Re5 Ra1 Rb5 Rb1 Qef3 Re4 Qe3 Nc7 Re8 Na6 Rg8 Nac5 Re8 Ra1 Rg8 Ncb7 b1N+ Bb2 Na3 Rb1 Qcc5 Bd4 Qf5 Bc5 b3+ Ka1 b2+ Ka2 Nf7 Bf8 Nd6 Rc1 Qg6 Rc6 Qf5 Rb6 b1B+ Ka1 Bc2+ Ka2 Qfc5 Rg4 Bf5 Rh4 Na6 Re4 Rb8 a8Q Qcc3 Nd8 Qcd3 Qc6 Q3c2+ Qb2 Ra8 Ndb7 Nb8 Ne5 Qd4 Bd7 Na6 Be6 Re8 Bc8 Nb8 Nd7 Nb1 Ka1 Qe3 Qf6 Qcd3 Ka2 Na3 Qe7 Qc3 Qf6 Qcc2+
bq1RqB1N/2rp1Rn1/1r1B3K/Q1b3Q1/4n2N/BB1bp1b1/r6k/2qN3n w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Kf6 h4 Ke5 a4 b5 f3 g5 c5 d3+ Ke3 g3 h5 g2 h6 b3 a5 g4 h7 b2 a6 b4 c6 g3 a7 d2 c7 b3 Ra3 Nc6 Bb5 Nf6 Qe2 d1N+ Kd2 Kf4 Nc3 b1Q Bd3 e5 Rh2 b2 Bc4 Qe8 Bb3 Nd4 Qb5 Bb7 c8N Bc5 Ne7 Nf2 Nd1 Ne6 Rh5 Rf8 h8B Ng7 Rh7 e3+ Ke2 Rc8 a8Q e4 Qaa5 Nh1 Ra4 Ba8 Ng6+ Kg5 f4+ Kg4 f5 Rc7 Nf3 g1Q Ra2 g2 Nfh4 Kh3 Ra3 Kh2 Ra1 Ng4 f6 Ngf2 f7 Rg8 Bd2 Qc1 f8B b1B Bb4 Bc2 Ba3 Qb2 Nc3 Qgc1 Nd1 g1R Ra2 Rg2 Ra1 Ne6 Rf7 Qbb1 Bc3 Ng7 Nh8 Qbb2 Bcb4 Bd3+ Ke1 e2 Rb1 Ba7 Qg5 Qbe5 Bbd6 Bc5 Bc2 Qef4 Rb8 Qg3 Rd8 Qge5 N8g6 Rh8 Bb3 Rh6 Nh8 Qg3 Bf4 Rb6 B4d6 Qb1 Kd2 e3+ Kc3 Qc1+ Bc2 Bb4+ Kd4 e1B Bb3 Ne4 Bde7 Qf2 Ke5 Qfb2+ Kf4 Bc5 Bd6 Bg3+ Kg4 Nf5 Kh5 Ng7+ Kh6 Qbe5 Qe1 Ra2 Qc3 Qd5 Qe1 Qb7 Qa5 Qb8
bk2q3/r1r2R1K/4Q3/3B1bbR/N1n2Bpp/2bNr1n1/R1b2nbQ/3Q1Q2 w - - 0 1 illegal: No possible last move, all moves rejected
n1n1R2Q/bNbrqB1K/2R4N/4p1rN/p1n2n1Q/3brN2/1B1n4/1B3kn1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 Kc4 b5 e5 c3 d5 f5 h5 f6 a5 b6 e3 Kf3+ e2 b7 a3 g5 d3 f7 e1B g6 a2 g7 a4 Be2 h3 Bf4 h2 Bh6 h4 Qc1 d4 Ke4 h3 Bf3 d2 Qc2 d1N Ne2 d3 Rf1 h1N Bh5 h2 Nc1 d2 Qb2 Bc5 f8Q Na6 b8N Nc7 Nb3 Qe7 Nd7 Ne3 Nf6 d1R Qf2 Ba6 Qh4 Ba7 Nc5 Rd7 Nb7 Rb8 Be8 Na8 Nh5 Rh7 Bf4 Rh6 Rf2 Rg6 Rd2 Rg5 Bf7+ Qe6 Rc2 Ne7 g8N Nc8 Nh6 Bf2 Qh8 Ng3+ Kf3 Kd3 c4 h1N c5 Bb5 c6 Qe7 c7 Nc4 Bc1 Bfb6 Nd2 Nf2 Rb1 a1N Bb2 Nh3 Rcc1 Nb3 Rc2 N4d6 Rc6 Nf4 Rg1 Nc4 Rg2 N8d6 c8B Nge2 Rg4 Ng1+ Kg3 Ke2 Nf3 Rd8 Bf5 Kf1 Be4 Bc7 Bb1 Rg6 Rg5 Nbd2 Kg4 Nc8 Kf5 Rd7 Rg3 Rg8 Rh3 Rg2 Rg3 Re2 Rg8 Re3 Rd8 Ng2 Kg6 Nf4+ Kh7 Ba6 Nc5 Rb6 Nb7 Bb5 Rc5 Rg6 Rc6 Rg5 Re8 N4b6 Bg6 Bd3 Bf5 Nbc4 Be4 Be2 Bb1 Bd3+
B1n3N1/R3qr1r/Nr1r1B2/1p1rQnb1/4K1k1/4b2p/1QQ1R3/R1nb1R1r w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 d5 a4 h5 c4 h3 a5 h4 a6 d3 Ke3 d2 a7 h2 g5 Kf5 g6 e5 g7 d4+ Ke2 h3 c5 b3 c6 e3 Kd3 e4+ Ke2 b2 c7 Bc5 Na3 b1R Qa4 d1R Bg2 Ne7 g8Q Rh7 Qd5+ Kg4 f5 Nd7 f6 Nb6 f7 Nf5 f8R Qe7 Nf3 Bd7 Rf1 h1R Qa6 Ba4 Ng5 Nc8 Qe5 Rb6 Nb5 Rd3 Bb2 Bd1+ Ke1 e2 Kf2 e1N Re8 Rb8 a8R Rf6 Qb6 Rff7 Qbf6 b6 R8a7 Rb7 Nc3 b5 Na2 Rb6 Qh8 Bb4 Qhf6 Bd2 Nb4 Bc1 Na6 Bf4 Ne6 Bg5 Nf4 Rd2+ Ne2 d3 Qg7 Bb3 Qgf6 Rd1 Ng3 d2 Nh5 e3+ Ke2 Nd3 Ba8 Nb4 Qg7 Na2 Kd3 e2 Ke4 e1B Qh8 Bf2 Nf6+ Kh4 Bd4 Bfe3 Ng8 Kg4 Bb2 Rb1 Bd4 d1R Bc3 Nc1 Qf6 Nh6 Qf2 Rdd6 Qb2 Nf5 Bd4 Bd1 Bc3 Qd8 Bd4 Nce7 c8Q Rd5 Qcc2 Nc8 Qb8 Qd6 Bf6 Qe7+ Q8e5 Rdd6 Qd4 Rb3 Qdb2 Rbd3 Rd8 Rdc6 Rd4 Rd6 Rd5 Rb3 Rd2 Rbd3 Re2 R3d5
1r6/5nRN/nrbbnpBQ/4q1rB/1n1B2n1/2QNRRB1/p7/b3nK1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 Ke7 b4 Kd6 e4 Ke5 g4 d5 c5 a5 g5 h5 c6 d3 b5 f6 g6 d2+ Kf2 f3 b6 Kf4 g7 a3 b7 a4 c7 a2 e5 h3 e6 h2 e7 h4 e8B d4 Bd7 d3 Bfh3 a3 Kf1 Kg3 Qe2 d1R+ Qe1+ f2 Bhe6 d2 Be8 h3 Bg6 Na6 b8B Bb7 c8Q+ Qd6 Qc5 Rh5 Bg4 Nh6 g8R Qe5 Qb4 Bc6 Rg7 Nf7 Rh7 Rg5 Qb6 Bd6 Bc7 Rb8 Bb2 Rc1 B4h5 d1N Qa7 Nc3 Qb6 Nb5 Qa5 Nd4 Bf3 Ne6 Nd2 Rb1 Bd4 R1b6 Rd1 a1B Nc4 a2 Nb2 Be7 Qe3 Bd6 Ke2 f1N Rd3 Nd2 Bfh5+ Kg2 Rg7 Nf3 Qc3 Ne1 Nf3 Ra8 Rf1 h1N Bb8 h2 Bc7 Rab8 Rf2+ Kh3 Kf1 Kg3 Re2 Nf2 Qec1 h1N Ree3 Ng4 Q1d2 Rf5 Qdc1 Nhf2 Ng5+ Kh2 Nh7 Kh1 Rf3 Nac5 Qh6 Na6 Rde3 Rg5 Nd3 Bf8 Nb2 Nfd3 Bd6 Ndb4 Nd3 Qf5 B6e5 Bd6 Bg3 Qe5
1K1bQ2B/n1pB2r1/3n2r1/Q1pkrb2/4R1BR/q4BN1/2N2rbr/Q3n2r w - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 b4 axb4 c5 g5 c6 gxh4 Ba3 dxc6 Bc1 c5 Kf2 Kd7 Kf3 Ke6 Ke4 f5+ Kf3 b5 g4 h5 d4 h3 a4 b3 e4 h2 g5 h4 g6 b2 a5 b4 g7 h3 e5 b3 a6 Ne7 a7 Rh7 Nd2 b1R Ra2 b2 Ra4 Kd5 e6 Nbc6 g8Q Rg7 Ne4 Bb7 Bg2 Nc8 Ng3 Be7 Qe8 Nd6 N1e2 Bh4 Re1 h1R e7 h2 Bh3 Rb8 a8B Na7 Bg4 Bg5 Kg2 f3+ Kf2 Bh4 Ke3 f2 Qb5 f1R e8B Rg6 Qa5 Rf2 Bd7 f4+ Kd3 f3 Bg5 Qf8 Bf6 Rc8 Bh8 Bd8 Rc4 Qe8 Qda4 Rg1 Qa1 h1R Kc3 Rd1 Kb3 b1B Ka4 Rgg2 Rb4 Rhh2 Rh1 Rh5 Rh4 Bf5 Rc4 Qe3 Rb4 Ne8 Rc4 Rh2 Rb4 Kd6 d5 Rdh1 Nd4 Rh7 Rc4 Rhg7 Nc2 Qc3 Rf4 Ke5 d6 Kd5 Re4 Rb8 Qb4 Qd3 Ka5 Qa3+ Qa4 Bc6 Ka6 Rb4 Re3 Re4 Qa5 Re5 Re1 Rfe2 Bb7 f2 Ba8 Rd2 Re4 f1N Bb7 Rdf2 Ba8 Nb5 Bb7 Nd2 Ba8 Nc3 Ka7 Nf3 Kb8 Ne1 Bc8 Rge7 d7 Reg7 Bab7 Nd6 Ba8 Bg5 d8Q Nb5 Bd7 Na7 Qe8 Bd8 Re3 Kc4 Bb7 Bg2 Bbf3 Bf6 Re2 Bd8 Re4+ Kd5
1bR1B2Q/R2b1Npq/r2B4/2nQ2b1/n4b1N/2B1q1Bk/1b5p/b2R1rbK w - - 0 1 illegal: No proof kernel
5bbk/Q1B5/1bq3b1/QBNpNnN1/b1r2Q1r/rn5r/3pr3/R3N1KR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 Kf7 a4 g5 c4 Kg7 c5 b5 a5 b3 e5 b4 a6 f3 e6 b2 c6 b3 h5 f4 a7 g3+ Ke1 g4 e7 f2+ Ke2 d3+ Kd2 g2 e8Q g3 c7 f3 Ke3 d2 Ra6 Ne7 Rh2 Nd7 Rh1 Nc5 Bc4 f1R Qa4 f2 Nh3 g1B Qf3 g2 Na3 b1R Qa5 b2 Ng5 Qe8 Bb5 Nb3 Nc2 Be6 c8N Qc6 Nb6 Bg8 Nd7 Nf5+ Ke2 Rh6 Nc5 Kh8 Qf4 Re1+ Kf3 Re4 Ne1 Rc4 Ke2 Rh7 h6 f1B+ Kf3 Re8 a8Q Ra1 Qa7 b1B Ba3 Re2 Bb4 Ra3 Bc3+ Ng7 Be5 Bg6 Bc7 Be3 Kg3 Nf5+ Kh2 g1R+ Ng2 Rg7 h7 Bf2 Ne1 Rg3 Bd8 Rgc3 Bb6 Bh3 Bc7 Bg4 Kg2 Rh3 Kf1 Rge7 Kg2 R7e4 Kf1 Kg7 h8N Bd4 Nhf7 Be3 Ne5 Kh8 Ncd3 Bb6 Nc5 B4h5 Kg1 Be8 Qc3 Bhg6 Qb4 Rh4 Ra4 R4e3 Qba5 Reh3 Rb4 Nbd4 Rb1 Nb3 Ra1 Qb7 Ba6 Ba4 Bb5 Qc6
rRN1N1Rn/1r3B1k/B1qq1b2/r4rB1/N4Qn1/q1r1pp2/b1rQ4/1K3N2 w - - 0 1 illegal: No proof kernel
1RrbQ2R/1B2b1r1/Kn4Q1/3N2n1/p4bR1/2nb1QrR/3N1b1p/1rkq2B1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 Kc4 b5 e5 c3 d5 f5 h5 f6 a5 b6 e3 b7 a3 g5 d3+ Ke1 h3 g6 h2 g7 h4 f7 e2 Kd2 e1B+ Ke3 a2 Bd2 e4 Bh3 a4 Qh5 Kb3 Kd4 Kc2 c4 e3 c5 e2 c6 Be7 f8R Ra7 c7 Nf6 g8Q Nbd7 b8Q Nh7 Be6 h3 Nf3 Nb6 Rf7 Bg3 Qgg5 e1B Nc3 Bf4 Qgh6 Ba6 c8R Ng5 Qc7 Bf2+ Be3 d2 Rb8 d1N Qe5 Bd3 Rb1 a1B Q6g6 Rg8 Rg1 h1R Bc8 h2 Rg4 Rg1 Bb7 Rg3 Nd2 Rh8 Rb5 Kc1 Rh7 Qd7 Rb3 Rc8 Qh3 Bb2 Qg2 Bba3 Rh6 Bd8 Qee8 Bae7 Rh8 Qd6 Qf3 Qd7 Nb5 Nc3 Nc7 Be4 Qd6 Bd3 Kc5 d4 Ra3 Bc2 Kb4 d3 Nd5 Bb1 Bc5 Bc2 Qdg6 Qd6 Nb1 d2 Rb3 d1R Nd2 Bd3 Ra3 Ba6 Ka5 Rdg1 Bc6 Rac7 Bb7 Bd3 Be3 Kb2 Bd4 Rb1 Bc5 Kc1 Be3 Be1 Bg1 Bf2 Rb3 Bf8 Ra3 Rg7 Rb3 Bfe7 Ra3 Be4 Ka6 Bd3+ Ka7 Nd1 Qg2 Qe6 Nb4 Rh3 Bc6 Bb5 Nd5 Qe2 Bb7 Re3 Rd3 Nc3 Q2e4 Rh3 Rdg3 Qd1 Qf3 Bd7 Ka6 Bf5 Rgh4 Bc2 Rgg4 Rg3 Rh3 Bd3+
RQ1K1k1N/2b3r1/1r3r1r/B4QRp/1rNq2n1/pB2Qb2/R3bRr1/n5q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 a5 e4 f5 g4 h3 b4 h2 g5 f3 b5 f4 g6 a3 e5 f2 b6 f3 g7 a4 c5 a2 b7 a3 e6 Nh6 g8R Nc6 b8Q Na5 c6 Ra6 e7 Bg4 c7 Rb6 c8Q Nb3 Be2 f1B Qg3 f2 Rg7 Bf3 Qcc7 Ng4 Bd2 Rhh6 Nh3 Qd7 Rg1 h1Q Rg2 Qg1 Rg5 Kf7 e8R Bd6 Ra8 Rb4 Ra4 Kf8 Ra8+ Qd8 Nf4 Rb6 Kc2 d3+ Kc3 Rb4 Be1 d2 Qc2 d1R Qb8 Rd2 Bd1 B1e2 Qe4 f1R Rf2 Rb2 Nd2 Rb1 Nc4 d4+ Kc2 d3+ Kc3 d2 Ng6+ Kg8 Bc2 d1R Nh8+ Kf8 Qe3 Rd4 Qge5 Re4 Qd5 Re7 Qdb5 Rg7 Bd2 Nc1 Kd4 R1b2 Qc5 Rb6 Ba5 R2b4 Be4 Nb3+ Kd5 Rb1 Qcc8 Rb2 Qe6 Rc2 Qg6 Rd2+ Ke6 Rc2 Bd5 Rd2 Rb1 a1R Rb2 Rf1 Ra2 Rc2 Ne5 Na1 Bb3 Rcc7 Nc4 Rc8 Nf7 Qf6+ Kd7 Qd4 Rh2 Rf2 Qgd3 Rg2 Qf5 Rg3 Rf2 Rg2 Qh7 Rf6 Qf5 Re8 Qb1 Rh6 Qf5 Rgg6 Nd8+ Rf6 Kc8 Re7 Nf7 Reb7 Nh8 Rg7 Kd8 Bc7+
1Q2b2b/1N2Nn1B/3Br2q/qN2pBbb/kbKp3R/1b3r2/1Q1q4/1R3Nn1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 d5 h4 Kd7 c4 Kc6 a4 b5 f4 g5 h5 b3 h6 d3+ Kd2 b2 Kc3 d2 c5 b4+ Kd4 e3 h7 e2 a5 Kb5 f5 g3 c6 g4 a6 g2 a7 b3 f6 g3 f7 Be6 c7 Nc6+ Kc3 Nh6 c8B Ne5 Kd4 Nf3+ Kc3 Qa5+ Kd3 e1Q Qe2 d1B Nh3 g1B Be3 g2 Bf4 Bd4 Bh2 g1B Bf4 Bge3 Nd2 Ng1 Rb1 Ka4 Bd6 Bg5 Nf4 Bg4 Qh2 Bh5 Bf5 Re8 a8N Be5 Qg2 d4 Kc4 Beg7 Nd5 e5 Rh4 Re6 Ne7 Qe3 Nf3 Qed2 B1d3 Rg8 Qf2 Bh8 Nc7 Rgg6 Qg2 Rgf6 Nh2 Bc2 Nf1 Bcd1 Rc1 b1B Nb5 b2 Qb7 Bbc2 Rb1 Bdf3 Qb6 Bc6 Qb8 Be8 Bde4 Bfg7 f8N Nf7 Nd7 Bf8 Bd3 Bhg7 h8Q Bcd1 Bg6 Rf3 Bh7 B7f6 Qg8 Bh8 Qg6 Bc2 Qe4 Bd1 Qe2 Bc2 Bdf5 Bd1 Rc1 b1Q Qg2 Qe4 Rb1 Qef4 Qf2 Qe1 Qb2 Qed2 Nf6 Qfh2 Ne4 Bc2 Bc7 Qhf4 Ned6 Qfe3 Nb7 Bd1 Ng8 Bb4 Ne7 Qf4 Bd6 Bc2 Bd3 Qf6 Bde4 Qh6 Bef5 Bb3+
1n1kNb2/1Q1n3Q/2b5/1Rnp1K1N/1rr2RrN/qQ1b1B1b/1Bp1b3/1nN5 w - - 0 1 illegal: No proof kernel
1br1N1b1/QBq3b1/3b3k/KpN2bbr/R1Q1q3/2NR3r/1R3n1p/5nBR w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 f4 Kg6 d4 h5 Kd2 b5 a4 e5 g5 c5 a5 c3+ Kc2 h3 Kb3 h2 d5 c2 a6 c4+ Ka2 b3+ Kb2 h4 Kc3 b2 a7 h3 d6 e3 Kb4 e4 Bg2 e2 Ra4 e1Q+ Bd2 c1B Bf1 e3 Qf3 c3 Qg2 e2 Nf3 c2 Nd4 Qc7 Ne6 Nd7 Qf2 Rh5 Nc3 b1B Be3 Bb2 Bb6 c1B Bg2 Ndf6 Ka5 Ne7 d7 Ba2 d8R Ned5 Nc5 Ne3 Rd3 Nfg4 Bb7 Bg8 f5+ Kg7 g6 Nf1 f6+ Kh6 g7 Bd6 f7 Bg5 f8R Bf5 Rd8 Rc8 a8N Ba1 Qd4 Nf2 Rd2 Qb1 Rb2 e1B Qe3 Qe4 Rd7 Bf8 Rd3 Bd6 Qd4 Bed2 Qc4 B2f4 Qd4 Bgh7 g8Q Bfe5 Qgc4 Bg8 Rg1 h1R Qe3 Rh2 Rh1 Rg2 Qed4 h2 Qe3 Rg3 Qed4 Qh7 Nc7 Rgh3 Ne8 Bb8 Qd7 Bed6 Qc7 Ba7 Qb8 Qc7 Qa8 Bb8 Qa6 Qe2 Qa7 Qe4 Rb1 Bf6 Nd1 Re3 Na6 Ng4 Rbb3 Bad4 Nc3 Reh3 Rbb4 Bg5 Rb2 Qd7 Bc5 Bg7 Bg1 Nf2 Nc5 Qc7+
RQ4NQ/1bN4b/2Q1r1Bq/p1R5/r3rn1r/2Bn2KN/2p1qr2/2krbQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 e4 Kc6 b4 Kb5 d4 c5 g4 a5 d5 f5 e5 h5 e6 f3 d6 f4 g5 h3 g6 h4 e7 a3 e8N a2 g7 h2 d7 h3 Ba3 Ne7 g8Q Rh6 Bg2 c3 Qd2 Ka4 b5 c2 b6 c1Q b7 c4 Qg4 Kb3 Qb4+ Kc2 Qb6 c3 Nd6 Nbc6 b8Q Qe8 d8Q Re6 Qa6 Nb4 Bb2 Bb7 Nf5 Ned5 Qbd6 Rc8 Ba3 Rc4 Q8d7 Rce4 Bf1 Be7 Qc4 Bh4+ Ng3 Kd1 Qb8 c2 Nc3+ Kd2 Rb1 a1R Bb2 Ra4 Nb5 Kd1 Bg2 Nd3+ Kf1 Qe7 Nh5 Be1 Qg7 f2 Bc3 Qe8 Rb3 Qe3 Rb2 Kc1 Nf6 Qg6 Qdc6 Qh6 Nc7 Qd2 Nf3 Qd1 Rg1 h1R Rb5 h2 Ng5 Qdh5 Bh3 Qe2+ Kg2 f3+ Kg3 N5f4 Rg2 Rg1 Bf5 h1R Bg6 Rh4 Qgh8 Rgh1 Rc5 f1B+ Rf2 Bh3 Ng8 Bf5 Nh3 Rf1 Be8 Bh7 Bg6 Rg1+ Kh2 Rf1 Rg2 f2 Kg3 Bd2 Rh2 Rd1 Q4a6 f1R Rf2 Ng2 Rf8 Rf2 Rd8 Be1 Qab5 Qed2 Qba6 Ngf4 Qc4 Nb4 Qf1 Nbd3 Qa7 Re8 Ra8 Qe2 Qb8 R8e6
Q1Kn3q/b1b1b2b/Q1b3k1/pQR1n2r/5q1B/2N2p2/R4r2/1RRNqB1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 Kf7 Kd5 a5 h4 d3 b4 a3 c4 a2 e4 g3 h5 g4 h6 g2 c5 d2 b5 g3 h7 f3 c6 f4 b6 f2 c7 Nf6+ Ke5 d5 b7 d4 Na3 d3 Qe1 d1B Be3 d2 Rh3 Nfd7+ Kf5 Bf3 e5 d1B Nb5 Be7 Rh5 Ba4 Nc3 Bac6 Nge2 g1Q Nd1 Bh1 Nec3 g2 e6+ Kg7 Rh2 Ne5 Rc1 a1B Qe2 Qe8 Qa6 Qg8 Bd3 Qe1 Bf1 g1B Bc5 B8d7 c8R Bb2 Bd4 Bba3 Bb6 Bad6 Bd8 Be8 Rc7 Bf7 Rc8 Qe8 Rc7 Bg8 Rc8 Bc7 Rg2+ Bg5 e7 Qh5 e8R Qh6 Rh2 Be7 Rf8 Qh4 Rf7+ Kh6 Ke6 Kg6 Rb1 Bcg2 Rc1 Nbc6 b8Q Qh6 Qb2 Rb8 Qbe2 Rb2 Rb8 Rc2 Rbb1 Be4 Qed3 f3 Qdb5 Qf4 Bh3 f1Q Bg2 Nc4 Kd7 Ne5+ Kc8 Ba7 Rf5 Rf2 Rfh5 Qfe2 Bf1 Qb2 Rf5 Bed6 Bf6 Nd8 Bh4 Bgd5 Rh5 Bc6 Rf5 Be7 Rh5 Rf8 h8Q Rf7 Rf5 Rh7 Qf8 Rh5 Qe8+ Nef7 Rc5 Bd3 Qbb7 Qa1 Qa8 Be4 Qd7 Ne5 Qdd3 Qb2 Qdb5 Kh7 Bg3 Re2 Rg2 Ng4 Nd5 Qh8 Bf2 Ne5 N5c3 Kh6 Rh2 Bh7 Bh4 Kg6 Rf2 Re3 Rfc2 Re2 Ra2 Rf2
2BkqQr1/6bn/5bp1/R1N2B2/NQ3b1q/Nb3bBb/Rpn2K2/2Br3q w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 b5 c4 d5 f4 e5 h4 e3 h5 e2 h6 b3 a5 d3 f5 d4 c5 b4 c6 g6 h7 g3 c7 b2 f6 b3 a6 e4 a7 g2 Bh6 d2+ Kf2 e1B+ Ke2 e3 Bg7 d3+ Kf3 e2 Bh6 Na6 Ra2 Bh4 Qe1 d1B Qg3 e1Q+ Ne2 g1B Na3 b1Q Bc1 d2 Bh3 b2 Qg5 Nb4 Qa5 Bg7 Bf5 Nc2 Qb4 Be3 Rh2 Rb8 a8N Bf4 Nb6 Bhg5 Kg2 Qh4 Ng3 Bf3+ Kf2 d1B Na4 Rb5 Rh1 Rd5 Rh3 Be6 c8B Qd7 f7+ Kd8 f8B Qe8 Bd6 Nf6 Be5 Rg8 h8Q Nh7 Bd6 Qh5 Ne4 B5f6 Nec5 Qh4+ Rg3 Bde2 Be5 Rd1 Bd6 Bf1 Bb8 Qh5 Rg5 Bh3 Be5 Bb3 Bd6 Bh6 Qg7 Qg4 Qf8 Bhg7 Be5 Bd2 Bg3 Qh4 Rg4 Bdh6 Re4 Bd2 Re6 Bdh6 Ra6 Bf4 Ra5 Rd6 Be3 Qh1 Bc1 Rd1
r1nRn1B1/Q2N3r/pB1n4/1b1b1q2/nRq3B1/n1NR4/2pK2n1/Q3Bkb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Ke6 d4 Kd5 b5 Ke4 b6 c5 g5 f5 b7 h5 d5 c3 g6 a3 e3 a6 d6 c2 d7 c4 g7 a2 Qd2 h3 Ba3 c1N Bg2+ f3 Be7 c3 Kd1 h2 Bb4 h4 Qe1 Kd3 e4 f2 e5 f1Q e6 h3 e7 f4 e8Q f3 Nd2 f2 Bd5 Qg5 d8R Nd7 b8B Nb3 Be6 Rh7 Rb1 a1N Bf4 Ne7 g8B Nc5 Be5 Qf5 Bd5 Nc2 Bd6 Nf6 Qg6 Na4 Bb7 Na3 Bdc5+ Bd7 Rb3 Nc8 Be6 Ne8 Bb6 Bc5 Bbd5 Bb5 Ne2 Bd4 Rg1 h1B Qg7 h2 Ne4 Ke3 Rb1 c2+ Kc1 Kf3 N2c3 Qc4 Qa7 f1N Rg7 Ne3 Kd2 Ng2 Rgd7 Bf2 Nf6+ Kg3 Qc1 Bg1 Bg8 Kh3 Bf3 Kg3 Rd4 Kf2 Bd1 Kf1 Rd3 Nf4 Rb2 Bd5 Nd7 h1N Qa1 Ng2 B4a5 Nf2 Rb3 Nh3 Rb4 Ng5 Bg4+ Ne1 Bf2 Nf7 Bab6 Nfd6 Kc1 Ng2 Be1 Rh6 Kd2 Rh7
1b1B1r1r/2r2bBB/pKnp3n/1QR3n1/6k1/2QNq1N1/rN1bN3/1Rb4b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 g5 c4 f3 h4 a3 b4 a2 e3 d6 h5 g3 h6 g4 h7 g2 c5 f2 c6 d3 c7 d2 Nf3 g1N Ne5 g3 Rh5+ Qg5 Nc3 g2 Rb1 a1B Qe1 d1R Nd3 Nh6 e4+ Kg4+ e5 f5 e6 Qe3 e7 f4 e8N f3 Rc5 Be6 c8N Bf7 Ng7 Bb2 Nh5 Nh3 Nb6 g1B Nc4 Ng5 Ne2 Nc6 Nhg3 a6+ Kb6 Rc8 b5 Rd2 Bg2 f1R Bh1 f2 Be4 Rc2 Qc3 Rc7 Bd2 Bc1 Ncb2 Bg7 Bg6 Be5 Be4 Bf4 Bg6 Re8 h8B Rd8 Bg7 Rh8 Nc4 Ra2 Bh7 Re1 Ncb2 f1B Qb3 Bg2 Ba5 Bh1 Qc3 Rcc8 Kb7 Rcf8 Bd8 Bd2 b6 Rc1 Kc7 Rc2 b7 Qf3 b8Q Ne5 Qb5 Bde3 Rd5 Bc1 Be7 Bfd2 Bd8 Ba7 Qcc6 Bb8+ Kb6 Qf4 Qcc5 Rc4 Qa3 Rc7 Rc5 Qe3 Qc3 Nc6
N1N2n1Q/q4rp1/bQ6/3q1R2/1K1Qn2b/p2qq1b1/2R1Nqq1/B2k1BrQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 e4 Kd6 h4 Ke5 b4 f5 c4 d5 b5 a5 c5 f3 h5 Kf4 e5 d3 Kc3+ d2 h6 Ke3 e6 a3 b6 d4+ Kb3 a2 h7 d3 b7 f4 e7 g3 e8N g2 c6 a4+ Kc4 f2 c7 f3 Kb5 a3 Nd6 Qe8+ Kb4 Nf6 Nh3 g1Q Qb3 Be7 Qc3 Ra7 Qc6 Ne4 Qd5 Bh4 Qf5 Nd7 b8Q Ba6 c8Q Nf8 Bb2 d1Q Nc3 Kd2 Qg4 Rf7 Rc1 a1B Ncb5 Qd7 Qe6 Qa7 Qa8 Qg2 Qe5 Qe2 Ng1 Qee3 Rc2+ Kd1 Qcb7 d2 Ne2 Bg3 Qc5 Bh4 Bf6 Be5 Qbb6 Beg3 Ba1 Ke1 Qc4 d1Q Nc8 Qd5 Nc7 Kd1 Rg1 Qh1 Bg2+ f1Q Qac6 f2 Na8 Qh3 Qcd4+ Qd3 Rh1 Qg1 Qh6 f1Q Qh5 Qf6 Bf1 Qe3 Rh2 Qff4 Rf2 Qg2 Rf3 Qef2 Qhh6 Q4e3 Rf5 Nd7 Qh5 Re8 h8Q Nf8 Q5h7 Re6 Qh5 Rg6 Qf3 Bc7 Qh3 Bcg3 Qh1 Qh2 Qdc5 Bc7 Nd4 Rg1 Ne2 Qhg2 Qd4 Bcg3
B7/B1RR1pBr/Kr6/b2b1R1N/1B4q1/2r1Qb2/r3rp1k/NQn1qr1n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Kf6 Kd2 Kf5 h4 c5 a5 g5 a6 b5 a7 f3 e4+ Kf4 e5 Kg3 h5 f2 h6 c3+ Kd3 b3 h7 b4 Kc4 b2 Kb5 c4 e6 b3 e7 c2 e8R c3 d5 Bb7 d6 Nc6 d7 Ne5 Bd3 Bf3 Ra2 Nf6 Nd2 b1B Bg6 b2 Nb3 Ne4 Ra1 Ba2 Ka6 b1R Qe2 Qa5+ Kb7 Nd3 d8B Bb4 Bb2 c1R Bf6 c2 Qe3 Re1 Re7 c1R Rc7 Re2 Ba3 Rc3 Rh5 Nc1 Nh3 Kh2 Bg7 Ng3+ Be4 Nh1 Rd7 Qf5 Ka6 Ba5 Bb4 g3 Nf4+ Qh3 Bc6 g4 Rf5 g2 Nh5 g1R Be4 g3 Bb7 Rac8 a8Q Qg4 Qb8 Rf1 Ba8 Rcf8 Qb7 g2 Bd4 g1Q Ba7 Rfc8 Qbe4 Rbb2 Qb1 Rcg8 Rc7 Rg7 Rd7 Rb8 h8B Rh7 Bg7 Rb7 Nd2 Be6 Nb3 Bed5 Ra3 Ra2 Na1 Qd4 Rb3 Qd2 Rb2 Qg4 Rc7 Qe1 Rd2 Bde4 Rd6 Bd5 Rdd7 Rb6+
2N5/rB1n1p2/p3RQN1/4B1N1/B1qbb1rb/k2b3N/nR1Q4/K3rnrr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 g4 Kd6 e4 Kc5 c4 Kb4 Kc2 d5 g5 h5 c5 d3+ Kd2 h3 c6 a6 g6 h2 c7 h4 b3 d4 e5 h3 e6 f3 e7 f2 e8B a3 g7 a2 Bc6 Nd7 Bb2 Ne7 Kc1 Nd5 g8N Ra7 Ne7 Rh4 Nd2 Rg4 Bb7 Nc3 Ng6 Qh4 Ne4 Be7 Rb1 a1B Ng5 d2+ Kc2 Bf6 Bb5 f1N Ba4 Na2 Qc1 d1R Qd2+ Kc5 Bc3 Re1 b4+ Kc4 b5 Be7 Rc1 d3+ Kb1 Bf6 b6 Bd4 Bb5+ Kb3 Ba4+ Ka3 Rd1 Bf2 Be5 Bad4 Rc1 Qg3 Rd1 Qf4 Rc1 Bh4 Rd1 Bdf2 Ka1 Qc4 Rb1 Bc5 Qd1 d2 Rb2 Bd4 Qc1 d1B Qf4 Nc5 Qd2 Bf5 c8N Bb1 Ne2 Bf5 Nef4 Nd7 Rg1 h1R Rg3+ Qd3 Re3 h2 Nfh3 Be4 Bg7 Bc6 Ba8 Rhg1 b7 h1R b8Q Re4 Qe5 Reg4 Bb7 Qc3 Re4 Qc4 Qef4 Bd5 Re6 Be4 Be5 Be2+ Qc1 Bc6 Qf6 Be4 Qd1 B2d3 Qc1 Re2 Qd2 Re1+
rB1R4/4pq1p/N1b2N1r/B1R1rk1N/8/rN1b4/1nq3rb/rQQB1K1n w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 c4 Kf6 a4 b5 g4 d5 f5 e3 a5 e2 c5 b3 c6 h3 c7 b4 a6 h2 a7 b2 Bg2 d3 Ra6+ Nc6 Bh6 d4 Bf1 d2+ Kf2 e1R Be3 b3 Qc1 d1Q Ra5 d3 Bb6 d2 Ne2 Ne5 Rc5 Nc4 Ba5 Qd5 Ng3 Qc2 Be2 d1R Nd2 Bh6 Qb1 Bb7 c8Q Bf4 g5+ Ke5 g6 Nh6 f6 Rg8 g7 Nf5 f7 Bc6 Rf1 h1R f8B Rh6 Nh5 Ng3 Rg1 Rc1 Bd1 Re3 Re1 Nh1+ Kf1 Bh2 Qc7+ Kf5 Re2 Rc8 a8N Re5 Re3 Re8 Rd3 Qf7 Rd7 Rd8 Qc8 Re8 Nc7 Rd8 Na6 Re8 Qa2 Ra1 Qb1 Ra3 Qc7 Ra8 Rd8 Rh8 Qb8 Rg8 Qc1 b1B Qb4 b2 Nb3 Ba2 Qb7 b1R Qb5 Rh8 g8N Nb2 Ngf6 Rg8 Bg7 Ra1 Qb4 Bb1 Qb8 Rg6 Bh6 R8g7 Bf4 Rh6 Qb5 Rg2 Bg3 Rd5 Bb8 Re5 Qb7 Qd2 Qb5 Bbe4 Qd3 Qc3 Qdb1 Qc2 Bf3 Bd3+ Be2 Bde4 Bd1 Bd3+
4R3/Q1Bpnk1B/Bb5b/b1R1n3/N1nb1N2/RR1pqqQK/1b6/r1r2b2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 e5 h4 b5 f4 g5 Kf2 b3 Kg2 e3 c4 g3 a5 e4 f5 b2 c5 g4 c6 e2 h5 e1B a6 e3 a7 e2 f6 b4 h6 b3 h7 Bh6 c7 Bc3 Ra3 e1B Rh5 Nc6 Qe2+ Kf7 Rha5 Qf8 Ra2 Ba6 c8B Nge7 Rh5 Ne5 Qd1 Be2 Nh3 d3 Bf4 Ba5 Ra3 Bec3 Ba6 Bd4 Nc3 b1Q Na4 b2 Rb3 Qc1 Qe1 b1N Rf5 Rg8 h8Q Na3 Rg5 Rc8 a8R Qe3 Qa1 Bb2 Qg7+ Ke6 f7 Rc1 Re8 Nac4 Ra3 Rh8 Rb8 Rg8 Rb7 Qa8 f8R Rh8 Qa2 Ra1 Rb8 Rc8 Rf5 Rc6 Rbb3 Qb7 Rh5 Qa8 Qg5 Kf7 Re8 Qb7 Kh1 g2+ Kh2 g1B+ Kg2 Nf3 Bc7 g3 Nf4 Nfe5 Kh3 g2+ Qg3 Rc5 Rg5 Qbf3 Rh5 Bf2 Rg5 g1B Bg2 Qd2 Rh5 Bfd4 Rg5 Qde3 Bh1 Qff2 Be4 Qff3 Bf5 Nd6 Bh7 Rcc1 Rg6 Ndc4 Rc6 Bf2 Rc5 Bb6 Qb1 Be1 Qc2 Bb4 Qd1 B4a5 Qh1 Qff2 Qb7 Qff3 Qa7 Bf1+
1Q1qq1qR/1p1Qq1R1/1Qb1N1K1/p5n1/2R1nR2/2qr2rB/3b2q1/Brk4N w - - 0 1 illegal: No proof kernel
Q4N1B/KQ2R1nr/2N2q1k/4N3/r1q1n1B1/n2n3p/pn1bQ2b/1Nbb1R2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Kg7 f4 e5 b4 a5 c4 h5 f5 d5 g5 e3 Kd3 e2 b5 e1B c5 h3 g6 e4+ Ke2 h2 c6 d3+ Ke3 d2 Kd4 e3 c7 e2 f6+ Kh6 g7 h4 f7 a3 b6 a4 b7 a2 Nc3 h3 Bb2 a3 Nb5 Ne7 Kc5 d4 Kb6 d3 g8Q Nbc6 b8N Ra4 Bd4 Ne5 Qg3 Bg4 Bc5 Nc4+ Kb7 Nf5 c8N Bd6 f8Q+ Ng7 Ba7 Qf6 Bd4 Rh7 Qg2 Bdg3 Rb1 a1B Nc3 a2 Nd7 Bb2 Ne7 Na3 Qa8 Bc1 Nf3 Be5 Rg1 h1N Nc6 Ng3 Nf8 Ne4 Rb6 Bf4 Nb1 Bh2 Nfe5 Bf3 Qb3 d1N Qc2 Ba5 Ka7 e1N Rb7 d2 Be2 Nb2 Re7 d1Q Rf1 Qd3 Qd1 Bh5 Bg4 Qc4 Qde2 Ned3 Qgf3 Ndf2 Qb3 Nfd3 Qbb7 Bad2+ Kb6 Rb4+ Ka7 Be3 Be6 Qh4 Qg2 Bed2 Neg6 Nf5 Bh8 Bd1 Qe2 Qf6 Nge5 Ng7 Bg4 Ra4+
2N5/b1N2k1n/4r2Q/Nr2B1qq/2B1rpNQ/r1pnq3/Rq2R2B/K2b3q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 Kd2 b5 Kc2 h5 Kb2 h3 g4 f3 e4 b3 d5 f4 e5 h4 a5 h2 g5 h3 d6 f2 d7+ Kf7 a6 b4 a7 Rh6 Ra3 c3+ Ka1 c2 Bb2 c1Q Nf3 c4 Qd6 Qe3 Ra2 Re6 Nbd2 Nc6 Rg1 h1R Rg2 Nf6 Nh2 Nh7 Ng4 h2 Bc3 Qe7 d8B Rg1 Bb6 h1Q Bcd4 c3 Nc4 Qh5 Na5 Ba6 Bc7 Be2 Qd8 Bd1 Bc4 f1R Rge2 Re1 Bc5 Rb8 a8N Rb5 Nb6 Rg2 Nc8 b2+ Kb1 Qf6 Ba7 Bc5 g6+ Kg7 Bd6 Qfg5 Qb6 Kg8 g7 Kf7 Bdb8 Nd4 Qd8 Nb3 Bc7 Nc1 Bcb8 Qgh6 Qh4 Q6g5 Bb6 Nd3 Bd6 Qf3 Ba7 Bg1 Bf2 Qe4 Bg3 Ba7 Bh2 Qe3 g8N Nf8 Nge7 Nh7 Nd5 Rf2 Nc7 Rg2 Ra4 Rgg1 Ka2 b3+ Ka3 Bc2 Be7 b1Q Bf6 b2 Rf2 Qd2 Bg7 Qbc1 Ka2 Re4 Re2 Qe3 Ra3 Kg6 Bf6 Re8 e6 Rh1 e7 Qe1 Ra4 b1Q+ Ka3 Qb4+ Ka2 Rf1 Be5 Rf2 Rd2 Bd1 Ka1 Qh1 Ra3 Rd8 Rb2 Rd6 Rc2 Rf6 e8Q+ Kg7 Qf8+ Kg6 Ra4 Re6 Qh6+ Kf7 Re2 Rg2 Re1 Rb2 Ra2 Rb3 Ree2 Ra3 Bd6 Qb3 Be5 Qb2+
2nN1K1B/Q2b1R2/bRnBQq1b/kr3b2/BpQ4q/2Nq4/6pq/2q2r1Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 a4 Kc7 h4 Kb6 c4 f5 h5 g5 e5 f3 Kg3 f2 c5+ Ka5 c6 b5 h6 f4+ Kh2 g3+ Kg2 b3 Kf3 b2 e6 b4 Kg4 d3 Kf5 f3 Kg6 g4 Kf7 d4 e7 d2 e8Q d3 c7 g2 h7 g3 Qde1 d1Q Nc3 b1B Nge2 g1Q Qe6 d2 Nf4 g2 Rh6 Ne7 Bb5 Bd7 c8Q f1Q Qcc4 f2 Bb2 Rg8 h8B Nbc6 Be5 Bg7 Bd6 Qh2 Ra3 Qd3 Qh1 Q1f3 Ra1 Bc2 Rf1 d1Q Rf6 Bh6 Ba1 Nc8 Rg6 Kb6 a5+ Kb7 a6+ Kb6 a7 Qdh4 Bb2 Rb8 a8Q Qc1 Ba4 Rb7 Qb8 Ka5 Rf6 Rg7+ Kf8 Rb6 Rf7 Rb5 Rd1 f1B Ba1 Qd4 Qc7+ Qb6 Qa7+ Qa6 Rd5 Bf5 Rc5 Qd3 Bb2 Nd4 Rc6 Be2 Rb6 Nc6 Qe3 Bf1 Ne6 Be2 Nd8 Bf1 Ne4 Rg4+ Bg7 Rf4 Nc3 Be2 Qee6 Rf1 Rb8 Bd2 Bh8 Bg5 Qad4 Bh6+ Qg7 Qb6 Rb7 Qbd4 Rb6 Qdf6 Rb8 Qdd4 Qcd5 Be8 Rb6 Rc5 Qa2 Ba6 Qac4 Qfg5 Rf6 Rb5 Kg8 Qge3 Qa7 Bd7 Rf8 Qdf6 Rf7 Bf4 Kf8 Qd3 Qb7 Bg5 Qa7 Bh6+
3Rrq2/N1q2n2/2b5/1Q1pR1nb/3Q1Kp1/b1bnn2B/2k3B1/1R1NRbBr w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 e5 g3+ Kf3 g4+ Kg2 d2 e6 b3 c5 b4 c6 b2 h6 b3 e7 Qc7 e8B Ba3 h7 Nh6 Bb5 f3+ Kf1 f4 Qe2 d1N Nd2 Kc3 Rb1 f2 Kg2 Bd7 Ndf3 Na6 Ne5 Nc5 Nh3 Nd3 Be3 Nf7 Re1 f1N Ba6 Nd2 Bg1 Nf3 Nf2 N3g5 Qf1 Rb8 a8R Kc2 Bb5 Rd8 Ra4 Ra8 Rae4 Rc8 Ng6 Rd8 Re5 Rc8 Ne7 f3+ Kh1 g2+ Kh2 Ra8 Kg3 Ne3 Nd1 f2 Nc8 Rb8 Na7 Ra8 Ra1 b1Q Ba6 Qc1 Rb1 b2 Bc4 Qd6 c7 Qf8 c8R Bc6 Rd8 Rc8 Bd7 Ra8 Bf5 Rb8 Bh2 g1B Be4 Rc8 Bg2 Ra8 Ra1 b1B Bb5 Qd2 Bc4 Qa5 Bh3 Qc7 Bg2 Rg8 h8Q Rg6 Qf6 Rh6 Qf4 Rh8 Qd4 Rh4 Rd7 Re8 Rd8 Nc1 Kf4 Rh5 Bg3 Rh1 Ba6 Bh2 Qb5 f1B Bh3 Bg1 Bh2 Nd3+ Kg3 Nc4 Bg2 Be3 Bg1 Bd2 Bh3 Bc3 Bg2 Nb4 Kf4 Ne3 Bh3 Kb3 Bg2 Bg6 Rb1+ Kc2 Qa5 Qb6 Be2 Qb7 Qb5 Bh5 Bef3 Qbe7 Bh3 Qc7 Bfg2 Nd3+
nr2q2Q/5NN1/2B1p1kB/bNp2qqR/KR6/nn2R1n1/2R4q/1nQ2b1r w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 f4 b5 a4 h5 d4 c3 g5 b3 d5 b2 a5 h3 d6 b4 a6 h4 a7 e3 f5 c2 f6 e2 Kd2 e1Q+ Kd3 h2 Kc4 b3 Kb5 h3 d7 Kg6 f7 Ba6+ Ka4 Nf6 Nc3 b1N Bd2 c1N Nge2 b2 Nb5 Na3 Ned4 b1N Nf5 Ne4 Bg2 Nb3 Ra2 Ng3 Qc1 c5 Bf4 Bg7 f8Q Bc3 Bc6 Ba5 Ng7 e6 Be3 Qe8 d8N Qf2 Rc2 Nd7 Nf7 Rb8 a8R Qf5 Qg8 Rh7 Qh8 Rh6 Re1 h1Q Bf4 h2 Re3 Qhd5 Ra7 h1Q Rb7 Qde4+ Nd4 Qed5 Nh5 Qfe4 Rb4 Bf1 Nb5 Kf5 g6 Qed3 g7 Qhg2 Nf6 Rh1 g8R Qh2 Bh6 Qe5 Rg7 Qf4 Rg4 Qg5 Rh4 Kg6 Nh5 Qdf5 Ng7 Nf6 Rce2 Nd5 Rh5 Nc7 Rc2 Na8
Q3r2b/bn4b1/p1B1R2p/1q4bb/2Q1nq1n/2Q2B2/2nQK1RN/1Nr3Bk w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 g4 Ke6 c4 d5 b4 a6 c5 h3 g5 Kf5 g6 e5 c6 h2 c7 h6 b5 e3 b6 Ke4 f5 d3 b7 d2+ Ke2 d4 f6 a3 g7 a2 f7 Nf6 g8Q Qe8 Qg3 Bg4+ Nf3 Bh5 c8B Bg7 f8Q Nbd7 b8Q Nc5 Ba3 Nb7 Rg1 h1N Be6 Qb5+ Bc4 Rg8 Qde1 d1N Qef2 d3+ Ke1 e2 Bb4 Ne3 Qe7 Nc2+ Kd2 e1B+ Kd1 d2 Qbd6 Rge8 Bg8 Rac8 Qg5 Ng3 Qa7 Nf5 Rg2 Nh4 Qdb8 Bf2 Qaa8 Ba7 Qg4+ Ke3 Bfc4 e4 Bcd5 Rc7 Bc6 Bh8 Rg1 Kf2 Nh2 e3 Bgd5 Ne4 Qd6 Bg7 Bc5 Bh8 Na3 Bg7 Rc1 a1B Nb1 Bh8 Qbd8 Bag7 Qe5 Rc8 Re1 Rc7 Qc3 Rc8 Nf1 Rc7 Qe2+ Kg1 Bb6 Kh1 Bd4 Nf3 Qec4 Rc8 Ke2 Nh4+ Kd3 e2 Bg1 Rc7 Nh2 Rc8 Qg5 d1Q+ Qgd2 Rc7 Rf1 e1B Rf6 Rcc8 Re6 Qg4 Rd1 Bg3 Rf1 Qf5 Rf2 Bf4 Re2 Bg5 Rg2 Nf6+ Be4 Qf4 Bf3 Ne4 Ke2 Rcd8 Qc1 Rd1 Q1d2 Rc1
3R2rr/Rnnn1Q1B/4qb1r/Q3B2q/q7/4N1pb/Qq1Rp1Nk/KRn5 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kf5 f4 e5 c4 b5 Kc2 d5 Kb2 g5 a5 d3 h5 e3 c5 b3 a6 d4 h6 b4 h7 g3 c6 e4 a7 e2 c7 Kg4 f5 g2 f6 Kg3 f7 e1N Be2 g4 Bh6 d2 Ra5 d3 Rb5 e3 Nh3 g1N Bf1 Ne7 Rf5 Nd7 Rh2 Bg7+ Rf6 Nd5 f8Q Qe7 Qe8 Ne2 Bg5 Qe6 Qf8 Nc1 Qe2 d1Q Na3 d2 Ka1 Ned3 Nc2 N3c5 Qf7 Nb7 Nf4 Rb8 a8R b2+ Kb1 Rg8 Ng2 Bh8 Rf2 Bf6 Rh1 Rh8 Rg1 Kh2 Ra7 g3 Bf4 Ra8 Qa6 Qh5 Qa2 d1Q Rd2 e2 Nce3 Rg8 h8Q Qa4 Be5 Rb8 Nf4 Ra8 Bh3 Rb8 Bf5 Ra8 Qb3 Rb8 Nfg2 Ra8 Kc2 b1R Bh7 Ra1 Kb2 Ra3 Qc2 b3 Kb1 b2 Qc5 Rc3 Qa5 Rc4 Qhg7 Rh4 Qgf8 Rh8 Qa3 Rb8 Qa2 Ra8 Be4 Rh6 Rgd1 Rg4 Re1 Rg8 Bh7 Rh8 Bg6 Qe7 Qa1 Na2 Qc5 N7b6 Qa5 Bh3 c8R Nc7 Re8 Qe6 Bh7 Nd7 Rg1 Nb4 Qa2 Nd3 Re7 Rag8 Re8 N3c5 Rd8 Nb3 Kc2 b1Q+ Kc3 Qbg6 Rb1 Nc1 Kb2 Qgc2+ Ka1 Qb2+
r2n1B1q/Q3n1rq/Qr4B1/RKRB2Nn/1N5n/1b2qp1q/2B2k1p/Q5b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 a4 Ke4 g4 h5 e3 f5 c3 b5+ Kb3 d5 g5 h3 a5 f3 c4 h2 g6 d3 g7 d2 a6 f4 a7 d4 c5 f2 c6 f3 c7 d3 Bh3 f1Q Ba3 h4 Bg4 h3 Qe2 d1N Qe1 d2 Be6 Rh7 Qe2 Ne7 g8Q Nbc6 Qf7 Rg7 Bg4 Be6+ Qc4+ Qd4 c8Q Nd8 Qd5+ Kd3 e4 Ke3 e5 Kf2 Qa6 Ne3 Qc4 N3f5 Nc3 Nh4 Nd5 Qe3+ Qc3 d1N Bh5 Nb2 Bg6 Nd3 Be4 Nf4 Bc2 Nh5 Rc1 Bf5 e6 Bd3 Qa1 Bc4+ Kb2 b3 Nb4 Ng8 Qfb7 Bc5 e7 Bf7 e8B Ne7 Qc7 Bc4 Beg6 Bb6 Kb1 b2 Qb8 Bb3 Qc7 Rc8 a8B Ba7 Bb7 Ra8 Bd5 Bd4 Qca7 Qg2 Ne2 Qg3 Rhd1 h1Q Nf4 h2 Ne6 Qh3 Ng5 Bb6 Nc6 b4 Rd4 Q1f1 Rf4 Qc4 Rf5 Qcf4 Re5 Qf8 Rf5 Qh8 Re5 Ba4 Ka2 b1R Rf5 Rb3 Re5 Rc3 Kb2 b3 Nb4 Rc6 Rf5 Bc5 Re5 Rb6 Rf5 Qf4 Kc3 Qe3+ Kc4 b2 Re5 Re6 Rf5 Bb3+ Kb5 b1Q Bd1 Bb6 Rc5 Qb2 Bc2 Qf6 Bb2 Qf7 Be5 Qfg8 Bd6 Qgh7 Re5 Nef5 Bf8 Ne7 Rc4 Bd4 Rc5 Rb6+ Ka5 Bc4 Re4 Qd2 Re3 Kg3 Ra3 Bg1 Ra2 Kf2 Ra4 Bb3 Ra3 Re6 Kb5 Qe3 Ra5 Rb6+
2q1rB2/3N2qr/4Q2q/4Q2B/3b4/2p1QQqn/R1b1pnNk/rRn2KnN w - - 0 1 illegal: No possible last move, all moves rejected
q4rQq/2b2r1b/K1k4n/1NB1nr1n/8/Q1pB2BR/1Rnp1r1N/R1R4q w - - 0 1 illegal: No proof kernel
3K1Nq1/2Q1Bnb1/b5Nb/1QRB1bnk/n1B3nr/2p1r3/p2R4/qR2Rr2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 f5 Kf3 Kf7 e4 Kg6 b4 c5 d4 a5 g4 h5 b5 h3 g5 h2 b6 h4 b7 h3 d5 a3 d6 a4 d7 a2 e5 c3 e6 a3 e7 c2 e8R c4 Qd5 c3 Bb5 Bg7 Ne2 Nh6 Bc4 Nf7 Bb5 Na6 b8Q Kh5 g6 Nc5 Nd2 Na4 Re5 Qg8 Rb1 a1Q d8R a2 Ba3 c1B Re1 h1N Ne4 h2 Nc5 Nf2 Qc7 h1N Ne6 Ng4 Nf8 Ng3 Bc4 Ne4 Qb5 Rb8 Rc5 Neg5+ Kg2 f3+ Kg3 f2 Rd2 f1B Kf4 Be6 Bb4 Re8 Bd5 Bd4 g7 Bc8 Bc4 Re3 Bd5 Bh3 Bc4 Ba6 Bd5 Qh7 g8B Bg7 Bc4 Nfe5 Bgd5 Nef7 Ng6 Qg8 Nd4 Bf1 Ne6 Bd3 Nef8 Rh6 Rc6 Rh8 Be7 Rh6 Bf3 Be4 Rc5 Bd3 Kg3 f4+ Kg2 Re2+ Kf1 Bf5 Rc2 Nh3 Bfd5 f3 Rcb2 f2 Kg2 f1R+ Kg3 Bg5 Rd2 Re4 Nh4 Rhe6 Nhg6 Ngf2 Kf3 Rh4 Kg3 B5h6 Kf3 Nhg5+ Kg3 Bg4 Kf4 Bd1+ Kf5 Bb3 Qb4 Re3 Qb5 Nge4 Ke6 Bc2 Kd7 Ng4 Ke8 Neg5 Kd7 Bf5+ Ke8 Nd6+ Kd8 Ndf7+
b2r1Q1r/2QR1BKN/2b5/q5n1/4nnNB/Rp1R1qr1/1k1b1pR1/bn2Q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 Kg3 f2 a6 f4+ Kg2 f3+ Kg3 b3 h7 Kb4 a7 d3 e5 d2 e6 d4 c5 d3 e7 b2 e8Q Ne7 c6 Na6 c7 Bg7 Qf8 Bd7 c8Q Nc7 Nh3 Bc6 Ra3 Ne6 Qb7 Qa5 Qf5 Nd5 Bg2 f1Q Qbf7 Rad8 a8R Ndf4 Qe2 d1B Ra7 d2 Nc3 b1N Ne4 Ba1 Rb7 Bb3 Re7 d1N Qe1+ Ndc3 Nhf2 Bbd5 Rd7 Ba8 Rh4 Bdc6 Rh3 Kc4 Bb2 b4 Nf6 b3 Qf8 Qe2 Qe5 Qd3 Qc7 Ne4+ Kh2 Qe2 Be5 Qd1 Bd6 Qd3 Be7 Qdd5 Bf1+ Kd4 Bc4 g3+ Kh1 g2+ Kh2 g1R N2g4 Ng7 Rg3 Nge6 Rg2 f2 Qe2 Kc3 Qe1+ Qd2 Rd3+ Kb2 Bd5 Qd1 Bc4 Rg8 h8R Qf3 Rh7 Rh8 Bd5 Nd4 Bf7 Nde6 Nh6 g4 Rg7 Ng6 Nh7 g3+ Kh3 Ngf4+ Kh4 N6g5 Ng4 Ne2 Rh2 g2 Kh5 Nf4+ Kh6 Rf1 Qe8 g1B Rg2 Bh2 Qg8 Rg1 Qf8 Nfh3 Kg6 Bf4 Kh6 Bd2 Kg6 Ne6 Bh4 N6g5 Bc4 Qa7 Rgd7 Nf4+ Kg7 Qa4 Bf7 Qa5 Rh2 Rg3 Rg2 Bd5 Nh2 Bdb7 Ng4 Bc6
2N1BNQ1/2Br3R/6RQ/1K1r1R1q/n2b1NnR/pnkq3b/3p4/rn1bb3 w - - 0 1 illegal: No possible last move
3B1r2/4R1Q1/nn4bb/bqr2kb1/n1p1pBN1/K6n/Rq2NR1r/1Q3BB1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 Kd2 Kf6 Kc2 c5 Kb2 e5 g4 b5 f4 h5 a4 b3 d5 c3+ Ka3 c4+ d6 h3 g5+ Kf5 a5 h4 a6 h2 g6 e3 g7 h3 a7 c2 Nf3 e2 Kb2 e1B d7 e4 Ng1 b4 Bg2 Qb6 d8B Rh5 Ra3 Ne7 g8R Nd5 Bh4 Na6 Ra2 Bh6 Ne2 Qb5 Re8 Nb6 Rf1 h1N Bd8 h2 Nbc3 Nf2 Nd5 h1R Nf6 R1h2 Ng4 Nh3 Rf2 Be6 Bd2 Bf7 Qb1 Bg6 Bf1 Rc8 a8Q c1B+ Ka1 Bg5 Qb7 Rh8 Qg7 Rc5 Re7 Rf8 Be3 Bcd2 Kb2 Bh6 Rf3 Bh4 Bf2 B4g5 Bg1 Be1 Rf2 Bc3+ Kc1 b2+ Kc2 Rh8 Qd1 b1N Kc1 b3 Qc2 Bd2+ Kb2 Nc3 Ka3 b2 Qb3 b1Q Qb4 Qa1 Qb1 Re5 Rd7 Ke6 Re7+ Kd6 f5 Nca4 f6 Rc5 f7 Ba5 f8B Qe5 Ref7+ Ke6 Bd6 Rf8 Rc7 Qa1 Bf4 Kf5 Re7 Qab2+
1N4Kb/1n1R2Rn/2b5/1r1R1pQ1/r5q1/1Q1qR1pB/q2bNknB/q1b2B2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Ke6 a4 Kd5 h4 Ke4 e3 b5 a5 c5 a6 f5 d5 g5 h5 b3 h6 b4 h7 g3+ Ke2 b2 d6 b3 a7 g4 d7 f3+ Kd2 g2 Kc3 f2 Rh4 Nc6 Ra6 Nf6 Na3 b1Q Ra5 b2 Nb5 Qa2 Nd4 b1Q Nge2 g1Q Qb3 Bg7 Ba3 Qg8 d8R Bb7 Rd7 Nd8 Nc6 Kf3 Nb8 Bc6 e4 Nb7 e5 g3 e6 Qh1 e7 Ke3 Bh3 f1N e8R+ Kf2 Rg4 Ne3 Re5 Ng2 Re3 Qe4 Bb2 Qd8 Rg5 Rf8 h8Q Qha1 Qh6 Bh8 Rgg7 Qg4 Qg5 Nh7 Ra6 Ba4 Rad6 Bc6 Rd5 Rf6 Kc2 c3 Kd3 c2 Bd4 c1B Kc4 Kf1 Ree5 Bf4 Bg1 Bd2+ Re4 Re6 Bh2 Re5 Rf4+ Qf3 Re4 Kf2 Re3 Qg4+ Rd4 Be4 R4d5 Bf3+ Kb5 c4 Kc6 Nh4 Bf1 c3 Bh3 c2 Bf1 Nc5 Kd6 c1B Bh3 Re4 Bf1 Ra4 Bh3 Nb7+ Ke6 Ng2 Kf7 Qc7 Kg8 Qcc3 Rc5 Bc6 Rcd5 Nf8 Na6 Rd8 a8B Qd3 Nb8 Re8 Qh5 Re5 Qg5 Nc5 Bb7 Nh7 Ba6 Nb7 Ng1 Qde4 Bf1 Qed4 Ne2 Qd3 Rd4 Rc5 R4d5 Rb5
3rn1nQ/n2NB2Q/2N5/1k2Kp1n/q1p3B1/1q1NrqNb/2bR4/1QR3bq w - - 0 1 illegal: No possible last move, all moves rejected
1Q2rk1r/KB2n1N1/3Q3b/R3p1Nb/nN6/Nqb1Bqn1/3pnR2/rbQ5 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 e5 c4 b5 g4 h3 f5 e3 Kd3 h4 c5 h2 c6 b3 f6 b2 g5 b4 a5 e2 a6 e1B c7 b3 g6 h3 a7 Bg4 c8Q Na6 g7 Bc3 Qd2 Ne7 g8N Bh5 Na3 b1R Bg2 b2 Nf3 Bh6 f7+ Kf8 Rf1 h1Q Ng5 h2 Rf2 Qe8 Qc6 Qb8 Nf6 Qb3 Qd6 Re8 a8Q Qhd1 Qb7 h1N Qbb8 Ng3 Be4 Qh1 Qc2 Qg2 Be3 Qf3 Ra2 Ra1 Qc1 Kg7 f8N b1B+ Nc2 Nc7 Ra5 Na8 Ng8 Nb6 Nf6 Ba2 Na3 Na4 N6d7 Kg8 Nc5 Kg7 Na6 Bb1+ Qc2 Kg8 Nb4 Kg7 Nfe6+ Kg8 Ng7 Kf8 Qc5 Bb2+ Kd2 d3 Qcd6 d4 Bb7 Nf5 Ke1 d2+ Kf1 d1N Qc1 Ng3+ Ke1 Ndc3 Kd2 Ba2 Kd3 Bb1+ Nbc2 Qb6 Kc4 d3 Nb4 d2 Qdd8 Qg6 Qdd6 Nce2 Kb5 Bc3 Ka6 Qc2 Ka7 Qb3
1KBB1q1B/3n2Qr/1nb1nR2/2B1p2R/k1pr1Nb1/1qbR1q2/1n1N1Qb1/8 w - - 0 1 illegal: No possible last move
b1Rnn3/5q2/Br3B1R/Kb1p1N2/Q2N1R1N/1n1k1b2/1b1p2q1/R1Q1nrr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 c4 Ke6 a4 Ke5 g4 Ke4 g5 b5 e3 f5 g6 d5 c5 h5 a5 f3 a6 b3 g7 d3 Kc3 f4 Kb4 d2 a7 b2 Ne2 h3 Ra3 h2 Ra2 h4 Ra5 h3 Nbc3+ Kd3 e4 b1N e5 f2 e6 f3 e7 Qc7 e8N Nc6+ Kb3 b4 Ka4 b3 Nf6 b2 Nfe4 Qf7 Nf6 Bb7 Nce4 Rb8 a8Q Nc3+ Ka3 b1N+ Kb3 Na4 Ng4 Nf6 g8R Nd8 Kb4 Bg7 c6 Nc5 c7 Ne8 c8R Bb2 Rg5 Rg8 Ra1 Na3 N4g3 Nc2+ Ka5 Ne1 Nh6 Bc6 Rg4 Rb6 Qa7 Ba8 Rf4 Rg7 Ngf5 Rg1 Bg2 f1R Ned4 f2 Nh4 Rb4 Bf3 Rb6 N6f5 Rg8 Rg1 h1Q Rg6 h2 Rh6 Rgg1 Qa4 Qg2 Qc7 h1B Bd1 Qh3 Qcc6 Bf3 Be2+ Kc3 Ba6 Qg2 Nb5+ Kd3 Qc7 Bf6 Ba3 Be5 Bb4 Bb2 Bc3 Rh1 Be5 Rfg1 Qc6 f1B Bf6 B1e2 Qc7 Rf1 Qc6 Rhg1 Nbd4+ Kc3 Rd1 Bb5 Ra1 Kd3 Qc7 Ne4 Qc1 Nc5 Bh8 Qgg6 Be5 Qg2 Bf6 Nb3+
2BQqn2/2nrr1N1/4BbQ1/kp1bRq1p/n4N1r/RK1q3q/1B2n3/3N1B2 w - - 0 1 illegal: No possible last move
k1qqr3/qnbB4/1bNN1q2/p1RnK2Q/1Bb5/1rQ3r1/R1pRQ3/2R1r3 w - - 0 1 illegal: No possible last move
q1R3Rr/b4r2/2N1p3/bbr1Q2p/R4RqN/n3n3/1Bk1B1r1/Bb1nQ2K w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Kg6 g4 h5 Kg2 d5 a4 b5 c4 h3+ Kh2 d3 a5 e3 g5 Kf5 g6 Ke4 f5 d2 g7 d4 a6 e6 f6 d3 c5 e2 a7 e1B f7 b3 c6 b4 c7 b2 Na3 b1B Ne2 b3 Kg1 h2+ Kg2 b2 Rg1 h1R Nc2 Nh6 g8R Na6 Na3 Bd7 c8R Nf5 Rg7 Nb4 Rg5 Bc5 f8B Nc2 Nc4 Bb5 Ne3 Na3 Rg8 Rb8 a8Q+ Rb7 Be7 Ba7 Qb8 Qa5 Bh4 Rf7 Nd4 Qd8 Qe2 d1Q Bf6 Ba5 Qe1 d2 Nc6 Qg4+ Qbg3 d1N Be2 Rh3 Rf1 Rh2+ Kg1 Rf2 Ng2 Nfe3 Nh4 Rg2+ Kh1 Qf8 Bf3+ Kd3 Qe5 Kc2 Be2 Qe8 Rf4 Qd8 Rc7 Qa8 Rcc8 Ba2 Bg7 b1R Bb2 Rc1 Bf6 Bb1 Bg7 Nac4 Ra4 Na3 Ba1 Nec4 Qd6 Nce3 Bgb2 Kb3 Qb8 Rc5 Qe5 Kc2
QR4bq/1B1Q1n2/2r1pbb1/N1p5/1Qr1rkrB/qR2qb1n/B4B2/4N1K1 w - - 0 1 illegal: No possible last move
2brBR2/r1N1rQ1q/2Npq3/1R1p2r1/1K1b2b1/B1n5/1R3NR1/k1qn2Qb w - - 0 1 legal: proof: f4 a5 h4 e5 d4 exf4 b4 axb4 h5 c6 d5 cxd5 h6 gxh6 Be3 h5 Bc1 h4 Kd2 Ke7 e4 Kd6 a4 Kc5 c4 Kd4 g4 h5 e5 b5 c5 f5 a5 d6 c6 h3 a6 b3 a7 b4 e6 h2 g5 b2 g6 h4 g7 f3 e7 f2 e8R b3 c7 f4 Re3 h3 Qc2 f3 Ra3 Nd7 Qh7 Ndf6 Ra5 Nh6 g8Q Ne4+ Kd1 Nf5 Ra6 Qe7 Nd2 b1Q Bd3 Kc3 Qg2 f1Q+ Re1 f2 Ra3 Qe6 Ndf3 Bg7 Nd4 Rd8 Nc6 Bd4 Ra2 b2 Qf7 Kb3 Qg3 Nc3+ Kd2 Ne3 Re2 Ned1 Bb5 Qh7 Qg4 b1B Ba3 Bf5 Qg2 Rb8 a8N Rb7 Qgg6 Ra7 Qg3 Bb7 c8R Bg4 Nc7 Ba6 Rb8 Bc8 Qg2 Bh5 Qgg6 Bg4 Rb7 Qe1+ Kd3 f1R Rg2 Rf5 Rae2 Qf6 Re8 Re5 Rf8 Qe6 Rb8 Re2 Ba4+ Ka2 Rb5 Ka1 Rb2 Re4 Kc2 Bb6 Kb3 Bd4 Kb4 Qd2 Ne7 Re3 Be8 Qc1 Nc6 Re1 Nf3 Re5 Ne1 Rg5 Rhg1 h1B Nd3 h2 Nf2 Ne3 Re1 Ned1 Ree2 Qf4 Rb3 Qc1 Reb2 Qe4 Qh5 Rg8 Nh3 Bb7 Rg1 Bhf3 Qh4 h1R Qf2 Ba6 Ka5 Rg5 Rb5 Bac8+ Kb4 Qe2 Rg3 Re1 Qg1 Bh1 Nf2 Qee4 Rg2 Qeg6 Rb8 Re7 Rb5 Qe6
3qB3/r4B1K/2p2Bn1/1N2R1Qn/1Rq1Q1b1/q1qn1Nb1/1Q1rrkp1/1Bn5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 a4 Kd6 e4 Ke5 h4 Kd4 a5 f5 e5 g5 d3 b5 e6 g3+ Kf3 c6 e7 c3 e8B b3 a6 b4 a7 g4+ Kg2 b2 h5 c2 h6 b3 h7 Na6 Ra4+ Nb4 Rh3 f3+ Kh1 f2 Kg2 f4 Ra3 Ne7 Qe1 Ng6 Rh4 Bd6 Nc3 b1Q Ra5 b2 Re5 Qa2 Bd2 Rf8 h8Q b1R Bc1 Bd7 Bb2 c1N Be2 f1N Qg7 Rb8 a8B Rf7 Bb7 Qa3 Bc8 Bf5 Ba6 Ra7 Bc4 Rb5 Bf3 Rd5 Be4 Be6 Ba1 Rb2+ Qe2 Bc8 Qh7 Ra2 Qb2 Ke3 d4 Nbd3 Nf3 Bd7 Nb5 Bf5 Kg1 g2 Qe7 Ng3 Kh2 Bb8 Qeb4 Rd6 Bcf7 Nh5 d5 Re6 d6 Qc3 Q2b3 Kf2 d7 Rd2 Qb2 Re7 Qc4 Be6 Bf5 g3+ Kh3 g1Q Kg4 g2 Kg5 Qe1 Kh6 Qa3 Be4 Bg4 Kh7 Qe3 Bf5 Qec5 Qe4 Qcc3 Be6 Bc7 Ba2 Re6 Nh2 f3 Bb1 Qde7 d8Q Bd6 Rf5 Bg3 Re5 Qd7 Qg5 Qd8 Nf1 Kg1 Nh2 f2 Qgf4 f1Q Qg5 Qe2 Nf3+ Kf2 Qd5 Bh3 Rb4 Bg4 Qe4 Qe3 Qb3 Qc4 Bd4 Ree7 Qb2 Re6 Bc5 Qed4 Be7 Qdc3 Bf6 Q3d4 Rc5 Ra4 Qef4 Ree2 Qe4 Qdc3 Re5 Ra7
3r2Qb/2B2RKQ/np1B1B2/1qnq4/Q2b2b1/b1N1p1q1/1RBnrk1q/1N6 w - - 0 1 illegal: No possible last move
Q5q1/B3bKQ1/qp4n1/k1rr1N1b/q1r2qpb/2Rn4/1B3N1R/1B2b1BQ w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 f4 d5 c4 Kd7 h4 Kc6 a4 Kb6 f5 e5 f6 g3 f7 b3 h5 e3 Kf3 e4+ Ke2 d3+ Ke1 d4 c5+ Ka5 c6 e2 Kd2 b2 h6 g2 c7 Ne7 h7 Qd6 Rh2 Ng6 Nf3 g1Q Ra3 Be7 f8B Na6 Rc3 Nc5 Nh4 Bg4 c8Q Bh5 Qg4 Qa6 Nf5 Rc8 Qg3 Rg8 h8B g4 Qe5 Qf2 Qg7 Qg3 Bg2 Rc6 Qh1 e1B+ Kd1 d2 Kc2 d1R Be3 Nd3 Kb3 Rc5 Bg1 e3 Nd2 e2 Ne4 Qgd6 Nf2 Qf4 Be4 Rc1 Nh3 B1h4 Nf2 Bd6 Be7 e1B Bf6 Rd1 Be5 Bf8 Bb8 b6 Ba7 Bfe7 Nd6 Rb5+ Kc4 b1Q Nf5 Rb4+ Kd5 Rc4 Ke6 Qa2 Kf7 Rgc8 Bf3 R8c5 Be4 Nc1 Bb1 d3 Bc2 d2 Bb1 Kb4 a5 Nd3 Rg2 Qb7 a6 Ka5 Rh2 Qa8 Bb8 Qb7 a7 Qa6 a8Q Qa4 Ba7 Qe8+ Ke6 Qg8+ Qf7 Rc1 Bg7 d1Q Bf6 Rd5 Bd4 Qgb8 Qg7 Qa4 Kf7 Qh8 Be3 Rc2 Bc1 Qhc8 Bb2 Rcc5 Ra3 R2c4 Rc3 Qg8+
kNQ4b/1r1bKq1B/rp2R3/N1nQ2r1/b2QQp1R/r1B3b1/1nn5/5q1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc7 a4 g5 c4 f5 a5 g3+ Kf3 g2 h5 d3 h6 g4+ Kf2 d4 a6 f3 Kg3 d2 Kf4 d3 Ke5 f4 h7 f2 c5 g3 c6 b3 a7 b2 Qf3 d1B Ra3 d2 Nh3 g1R Ra6 g2 Bd3 f1Q Na3 b1R Nf2 Nd7+ Ke6 Bg7 e5 Ba4 Bb2 d1N Nc4 Nh6 Rh4 Qg8+ Ke7 Ng4 e6 Nge3 Bc3 Nc5 Qd5 Bd7 Na5 Nb2 Nh1 Nc2 Bg6 Kc8 c7 Ra1 Rc6 b6 Rd6 Rb8 a8Q Ra3 Qe4 Bd4 Qad5 Rb7 Bf5 Qg6 Rc6 Rf8 h8Q Bf2 Qg7 Bg3 Qgd4 Qh5 Bh7 Qf7+ Kd6 Rg8 e7 Rg4 e8N Rg5 Nf2 Rh1 Nf6 Rh3 Nh1 g1B Qd1 Bd4 Qdd3 Bf5 Nd7 Bh8 Nb8 Bd7 Q3d4 Ra7 Nc4 Kb7 c8Q+ Ka8 Na5 Rb7 Qg6 Qf5 Ke7 Rh2 Re6 Qf7+ Kd6 Rd2 Qgf5 Rd1 Qfe4 Rda1 Bg6 Bab5 Nc4 Ra7 Bh7 R7a6 Na5 Ra3 Rh3 Ba4 Rh4 Qf5 Ke7 Qf7+
b1rr1N1n/3N3p/r3Q1N1/4Q1b1/1NKn3R/qp4bq/Q1B2bkq/4Br1R w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 a4 Kf5 f4 d5 g3 e5 c5 b5 c6 h3 c7 e3+ Kd3 b3 a5 b2 a6 e2 a7 Kg4 f5 h2 f6 e4+ Kc2 d3+ Kb3 d4 f7 e3 Nd2 b1R+ Bb2 b4 Bg2 Bb7 c8Q+ Qd7 Ra4 Be7 f8N Bg5 Qcc2 Ne7 Ra6 Nbc6 Ne4 d2 Ra4 d3 Nh3 Ng6 Kc4 b3 Nf4 Nd4 Qe1 d1R Nc5 d2 Na6 Qf5 Bh3+ Kf3 g4 Ra1 Bf1 Rd8 Nb4 Ba8 Bc3 Rg8 Bh3 Nh8 Qa2 Rdb1 N4g6 d1Q Bf1 Qc1 Bh3 Qa3 Bf1 Bh4 g5 Qh3 Bd2 Bf2 Bg2+ Kg3 Be4 Rd1 Bc2 Kg2 Ne5 Bh4 g6 Bg5 g7 Rdc1 Neg6 Rcb1 Qh4 e1B Qf4 e2 Qe5 Bg3 Bc3 Rf1 Be1 Bb7 a8N Rc8+ Nc7 Ba8 Nd7 Rgd8 g8Q Bf2 Nc5 Bg3 N7e6 Bf2 Nef8 Bg3 Bc3 e1B Qge6 Bef2 Bd2 Rc6 Bc3 Ra6 Ncd7 Rfc1 Rf1 h1Q Be1 Q1h2 Rh1 Rab1 Bd2 Rf1 Be1 Rc1 Kc5 Rb1 Bd1 Qc1+ Nc2 Nc6+ Kd5 Qb2 Rh4 Rc1 Nb4 Rc3 Bc2 Qa3 Ke4 Rc4+ Kd3 Nd4 Qa5 Rcc8 Qae5 Rb8 Kc4 Rbc8+
R2Nn2k/rQNR1p1q/1q6/1n2p1B1/nQ2Q2b/1K1B1b1r/1QNq1rn1/r7 w - - 0 1 illegal: No proof kernel
bRQ1K3/qn2pB2/nN5n/7r/1q1NB3/r1RpNrn1/3B1bb1/1k3rQB w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 a4 Kf5 c4 d5 g3 b5 c5 h5 a5 e3+ Kd3 b3 c6 h3 c7 b2 a6 h2 a7 h4 Nh3 b4 Ra6 e2 Ra1 e1N+ Kd2 Ke4 g4 b3 f5 d3 Kc3 d4+ Kc4 d2 Kc5 Na6+ Kc6 Bg7 f6 Nd3 f7 Nh6 f8N Ndc5 g5 Nb7 Nf4 h3 Qg4 d1R g6 Rd3 Ra3 Rf3 Ne2+ Kd3 Nd2 Kc2 Nd7 b1Q Bg2 b2 Nf1 d3 Nb6 Bd4 g7 Bf2 g8B Qd4 Bf7 Rh7 Rg1 h1B Bd2 h2 Qg8 Be6 c8Q Bd5+ Kd7+ Qc5 Qg5 Qe1 Ne3+ Kb1 Nd4 Be4 Bf1 Bg2 Rc3 h1N Ke8 Ng3 Rh1 Qb4 Be2 Qg1 Qg6 Rf5 Bf3 Bd5 Be4 Rh5 Bg8 Rf7 Rh3 Rf3 Bf7 Ka2 Rh4 b1R Rf4 Rf1 Rf6 Rb8 a8B Ka1 Rd6 Kb1 Rd8 Bc6+ Qd7 Rc8 Qg7 Rc7 Rb8 Bd5 Qf5 Rc5 Qh3 Ra5 Qgg4 Ra3 Qh1 Qh2 Qc8 Qh3 Qg1 Qd7+ Kf8 Qc7 Ke8 Qcc5 Na4 Qa7 Nb6 Bc6+ Qd7 Nd8 Bb7 Rff5 Bf3 Bh3 Bh1 Rf3 Ba8 Be4 Bc6 Bg2 Qc8 Bd5 Bd7 Bb7 Bc6 Ba8 Be4 Nb7
rQn5/qq1pN3/B2BNr1R/r1b1Q3/6b1/1RK1b2N/k3pNbR/1q2qn2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Ke6 c4 h5 g4 b5 f4 h3 a5 d3 g5 h2 a6 b3 c5 Kd5 c6 Kc4 a7 e5 f5 b2 g6 b4 g7 b3 f6 e3+ Ke1 h4 c7 e2 Kd2 e1B+ Ke3 h3 f7 e4 Qg4 Bc5+ Kf4 e3 Ke4 Nc6 f8R Nce7 Be2 Nd5 Qg5 Rh5 Rf6 Bb7 c8Q Qc7 Rf4 Bd2 Qe5 Nge7 Qd8 Nc8 Nc3 b1R g8N b2 Qdf6 Kb3 Ra6 Ra1 Qg6 b1Q Rf3 Rf5 Qgd6 Rf6 Nd1 Ra5 Ba3 Ka2 Ne7 Bc1 Nf2 d2+ Bd3 d1B Bb4 Qb6 Qb8 Be2 Rg3 Bg4 Ba3 e2 Bb4 B5e3 Bd6 Ba3 Rf3 Qc7 Rb6 Qe1 Ba6 Bac5 Kd3 Bc6 Rg3 Bb7 Nf3 Bc6 Ng5 Qb7 Rg2 Qa1 Rhb1 h1Q R1b3 h2 Ngh3 Qhe1 Kc4 h1Q Rh2 Nc3 Kd3 Ne4 Kc4 Nd2+ Kd3 Qad1 Kc3 Qb1 Bd3 Qa6 Bc4 Rf8 Bc7 Bcf3 Rh6 Rf6 Bd6 Qb6 Qb7 Rb8 a8N Qa7 Nc7 Ra8 Qb8 Bb7 Ba6 Nf1+ Kc4 Qc6 Ne6 Qcb6 Rh4 Bg2 Rh6 Qa1 Kd3 Qbb7 Kc4 Qb2 Kd3 Qbb1+ Kc4 Qed1 Kc3 Qe1+
Rn1Qn1bq/1q1pn1B1/Qb2NR2/bq2K2B/2bR4/q7/N1rp4/rR1N2k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kf6 h4 Ke5 c4 b5 a4 g5 c5 f5 c6 d3 a5 Kd4 c7 g3+ Kf3 b3 a6 d2 e5 g4+ Ke2 g2 a7 g3 Kf3 b4 h5 b2 e6 b3 h6 Ba6 c8N Bc4 h7 Nf6 e7 Ne8 Ra2 Bg8 Na3 b1N Rh5 b2 Ra1 Nc3 Qc2 b1Q Qa2 Nd5 Be2 Qb7 Nh3 g1B Nd6 g2 Rb1 Be3 Ndc4 g1Q Rh4 Qdc8 Bd1 Qg3+ Ke2 Ke4 Nb2 Bb6 Nc2 Qa3 Nb4 Ba5 Rh6 f3+ Kf2 f4 Rf6 Qcc3 Ng5+ Kd4 Ne6+ Ke4 Kf1 f2 Kg2 Ke3 Bh5 f3+ Kg3 f1B Nd1+ Ke2 Kg4 f2 Kf5+ Ke1 Bb2 Bc4 Qa1 Kf1 Na2 Kg1 Ke4 Qh3 Ke5 f1Q Bc3 Bh6 Bb2 Be3 Bd4 Nec7 e8Q Ne7 Qd8 Ne8 Bc3 Beb6 Bb2 Bf7 Bc3 Rf8 h8R Bg8 Rhh6 Qhh1 Rf4 Rf6 Rd4 Rf3 Bb2 Rc3 Rf6 Rc1 Bf3 Qh8 Bh5 Na6 Bc3 Rc8 a8R Nb8 Qb2 Rc7 Qb5 Rc2 Qa6 Rc1 Rb2 Ra1 Rb5 Bd5 Rb1 Qb5 Bb4 Rc2 Bc5 Nc8 Bf8 Ne7 Bg7 Bc4+
1rQQQK1k/npq1b3/4Rnq1/2n2qBp/3Q3b/2r1N2N/1qB3b1/2bN2R1 w - - 0 1 illegal: No possible last move, all moves rejected
qQ1Q4/1p5N/N1b2Qqk/q1q1pbn1/1n5r/K1QBNr1r/b3RB2/1R2b3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 Kc2 h5 Kb3 d5 a4 e5 g4 h3 f4 h2 c5 e3 c6 e2 c7 e1Q a5 h4 g5 d3 a6 d2 a7 h3 Na3 d4 Qc2+ d3 Be2 d1Q Ka2 b3+ Kb2 Nh6 Be3 Nc6 Bf2 Qa5 Rb1 Bb4 Nf3 Qg1 Nc4 Nf7 Ne3 Be1 Qc3 d2 Bd3+ Bf5 c8Q d1Q Qb8 Kh5 g6 Ng5 g7 Kh6 g8Q Nb4 Qd5 Qc8 Qg8 Qcc5 Qgd8 Qg3 Rg1 h1R Rg2 Qg4 Rh2 Qh5 Qf6+ Qg6 Qbd8 Rc8 a8N Rf8 Rg2 h2 Nc7 Qa8 Na6 Qd2+ Ka3 b2 Qde7 Rc7 Qd8 Rh7 Qb8 Rf1 Qfd8 h1B Qf6 Rfh8 Qfd8 Bc8 f5 Be6 f6 Ba2 Bh4 Rf2 f7 Rf1 Re2 Rf2 Nd4 Bc6 Ne6 Rf4 Bf2 Rf3 Rd1 b1B f8Q+ Qg7 Qff6+ Qg6 Nf8 Bc2 Bb5 Bf5 Rb1 Qdd5 Bc4 Qa5+ Kb2 Qdc5 Bd3 Rd7 Nh7 Rd4 Nc7 Rh4 Na6 Rhh3 Qdc7 Rd8 Qcc8 Rd4 Qcd8 Qab5 Ka3 Rdh4 Qbc8 Qbb6 Qb8 Qba5+
R4BbR/1BK2k2/N1b2N1b/R2n4/n2n2pQ/1n1rpB2/2nr2q1/1nRb2Q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 b5 f4 g5 c4 b3 f5 d3+ Ke3 g3 a5 d4+ Kd2 g2 f6 e3+ Ke1 g4 a6 b4 h5 b2 a7 e4 h6 e2 Kf2 e1N Kg3 d2 Kf4 d3 Ke5 b3 c5 e3 h7 Be6 c6 Kf7 c7 Nc2 c8Q Bh6 Ne2 g1N Nec3 Ne2 Ra5 Na6 Nd5 Ned4 Nb4 Ne7 Nc3 b1B Ba3 b2 Bg2 Nc5 Qg1 d1N Ncd5 d2 Bf3 Nc3 Na6 d1B Qc7 Qd7 Qd8 Qb7 Kd6 Ncb3 Bc5 Rf8 h8R Na4 Ba3 Rc8 a8B Rc3 Bc5 Rd3 Ba3 Qc8 Bb7 Qa8 Kc7 Bd7 Bb4 Ba2 Bd6 b1N Ba3 Kg6 f7 Bc6 Nf6 Rg8 f8R Nd5+ Kd6 Rg7 Re8 Kf7 Reg8 Nf4 Kc7 Rg5 Bc5 Rh5 Bf8 Rh2 Nd7 Rhd2 Qh4 Qe8 Nf6 Qe4 Be2 Qg2 Bf3 Nbc5 Bg7 Be6 Ra8 Ncb3 Bf8 Bf5 Qgf2 Bh7 Rf1 Bg8 Qg1 Be2 Rc1 Bd1 Kc8 Nd5 Kb8 Ndc3 Kc7 Nd5+
1B1KR1r1/bB4qn/1rQNr1n1/k2pN2Q/p1Qr1R2/rb1Q2b1/4b3/5R1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 f5 Kc4 a5 Kb5 d3 b4 a3 c4 a2 g4 f3 e4 f2 c5 h3 g5 d2 c6 f4 e5 f3 g6 h4 e6 h2 c7 h3 Kb6 Nc6 e7 Ne5 b5 Nf6 g7 Rg8 Bb2 Ng6 Qe1 d1R Bc3 Nh7 Bf6 Rd4 Bd3 f1R Be4 f2 Qe2 Re1 Be5 f1B Qd3 Be2 Bb7 d5 Nd2 Kd7 e8R Bd6 Nc4 Qe7 Nf3 a4 Rf1 h1R Bh2 Bg3 Nd6 Rb8 Rc1 a1B Rc4 Bd1 Rb4 Bb3 Ne5+ Ke6 Qc4 Bd7 c8Q Re3 Rb1 Rhe1 Kc7 Red3 b6 Ree3 Bg1 h2 Rf1 h1R Bh2 Bc3 Qc6 Bce1 Qc4 Bef2 Qc6 Kf6 Qc4 Bg4+ Qd7 Qf8 Qdc6 Be2 Kd7 Rd2 Qd3 Ra2 Qcc4 Ra3 Kc7 Rh8 g8Q Qg7+ Qf7+ Kg5 Nc6 Re6 Ne5 Rg8 Qc6 Ne7 Qh5+ Kf4 Qdc4 Ke3 Kd7 Kd2 Kc7 Nc8+ Kd8 Ne7+ Bc8 Ng6 b7 Ra8 b8Q Ra6 Bb7 Rb6 Qbc8 Re4 Q8c7 Bc5 Q4b5 Kc3 Qa6 Rd4 Qc8 Rd1 Rbf4 Rd4 Qd3+ Kb4 Q8c7 Ka5 Qc8 Bb4 Qcc4 Bbe1 Q8c6 Bef2 Nef7 Ra6 Rh4 Rf4 Nb5 Ba7 Rg4 Be1 Rh4 Rf3 Bb8 Bg3 Nbd6 Rb6 Ne5 Rf4 Rg4 Re4 Rgf4 Rd4
b5b1/7b/RB1prnRQ/rR1bNbr1/2BNB2n/p4qQ1/1b3B2/4rK1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 e4 Ke7 g4 Kd6 b4 Ke5 c4 h5 c5 a5 c6 f5 c7 a3 b5 d6 g5 d3 b6 a2 g6 h3 g7 h4 b7 a4 Na3 h2 Bg2 d2+ Ke2 f3+ Kf1 Kf4 e5 Kg3 e6 f2 e7 f4 e8B h3 Bh5 Bf5 c8Q Ra5 Qdc2 d1B Rb1 a1R Q8c4 Rh6 Qc5 Qf6 Qb2 Bdc2 Qce5 Nc6 b8B Nce7 Bhf3 Ng6 Qe2 Nh4 Nb5 a3 Qee5 Ra2 Ke2 f1R Nd4 Re1+ Kd2 Rg6 Be2 Rg5 Bc4 Kf2 Bb7 f3 Be4 Kg2 Bc7 Qf7 Qb7 Nf6 g8R Bg7 Bb6 Bb3+ Kd3 Rae2 Ra8 Qd5 Ra6 Qc6 Bb5 Bg8 Bc4 Bh8 Qg7 Bfh7 Bg6 f2 Ngf3 f1B Qh6 Re3+ Kd2 Bd3 Rb5 Bf5 Qf4 Re8 Ne5 Re6 Bb2 Qf3 Rg1+ Kf2 Rg4 h1B Bc1 Bg2 Qg3+ Kg1 Bb2 h2 Ba1 Bb1 Be4 h1B Bc3 Rh5 Rg6 Rg5 Bb4 Bg7 Bf5 Be4 B4c5 Bd5 Be4 Bh8 Qf4 Bh3 Qg3+ B1g2 Nf5+ Kh1 Bf2 Ba8 Nd4 Bf5 Bc2 Qg4 B2d3 Bgd5 Bb1 Qf3 Be4 Re2+ Kd1 Ra2+ Ke1 Re2+ Kf1 Bg7 Ndc6 Nd7 Nd3 Bb2 Nde5 Nf6 Nd4 Re1+
bB2q1rk/K1N4B/2pB2b1/r7/Nn1n1r2/3R3p/BR1R2b1/rb1bb1QQ w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 g4 f5 a4 Kf7 d4 Kg7 e4 b5 a5 c3 g5 f3 Ke3 h3 a6 b3 a7 c2 g6 b2 e5 b4 d5 b3 Kd4 f4 e6 h4 d6 f2 Kc5 h2 e7 f3 e8R h3 Ra3 Bb7 Bd3 f1B Ne2 f2 Nf4 Bfg2 Nc3 b1B Na4 f1R Nd5 b2 Bf4 Nc6 Re2 Nf6 Rd2 c1R+ Bc2 Qc8 Rad3 Rg8 Be5 Rf3 Qg1 Kh8 Bf4 Bh6 d7 Qe8 d8B Nd4 Bd6 Rf4 B8e7 Bc8 Bf8 Bg4 g7+ Kh7 Be5 Bd1 Bfd6 Bg5 Ne7 Bh4 Nd5 Rd8 a8Q Be1 Qb7 Ra8 Qc6 Ba2 Qb7 Ra1 Bb3 Bb1 Ba2 Bbc2 Qc6 b1B Qb7 Rf8 g8B+ Kh8 Bh7 Rg8 Qc6 Nb5 Qb7 Ra5 Qa8 Qf8 Kc6 Nd4+ Kb7 Qe8 Qc8 Bh5 Qa8 Bcd1 Rb2 Bg6 Rbd2 Rc5 Ka7 Rb5 Nb4 Ra5+ Na6 Bh4 Qf3 Be1 Qff1 Ba8 Rb2 c6 Bb8 Rf3 Bed6 Nd5 Qfg2 Rf4 Qf3 Rc5 Nc7 Nb4 Qgg2 Qd8 Rf1 h1B Rff2 Qf8 Rfd2 Qe8 Qg1 Re5 Qfg2 Rh5 Q2h2 Bg2 Qhh1 Ra5+
nbrb2QN/BpN1Qqr1/1Q5B/1BbR2r1/R2n4/7p/b2bbK1Q/3k2r1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 g4 Kf6 a4 h5 f4 e5 g5+ Kf5 g6 c5 d5 b3 d6 h3 d7 c3 a5 c2 a6 h2 a7 c4 g7 e3 Ra6 Ke4 f5 b2 f6 e2 f7 h4 Rc6 c3 Bh6 c1B Rg6 h3 Rg4+ Bf4 Qd5+ Ke3 Nf3 e4 Qa2 c2 Ng1 c1B Bg2 Qe8 d8Q Ne7 g8Q Na6 Qa4 Nf5 Qda5 Nc7 Bg7 Nd4 Bf3 Rh7 Qc2 Bc5 f8B Qf7 Bh6 Rg7 Na3 b1B Nb5 Ba2 Qb6 Bce6 Qh7 Rc8 a8Q Bec4 Rg5 Bfd6 Rd5+ Rg5 Qb8 Na8 Nc7 Be7 Bg2 Bd8 Nf3 Bb2 Rg1 h1R Bf1 Bc1 Rg2 Rg1 Ne5 B1a3 Be7 Bd6 Ng6 Bac5 Rg4 Kf3 Kd2 e1R Nh8 Be2 Qc4 Rc1 Bf6 Rc3 Ke1 e3 Qcb4 Ra3 Qg8 Rg7 Bh4 Ra5 Bf2 Bh2 Na6 Bf4 Qe5 Bh2 Qe7 Bb8 Nc7 Bb5 Qbd6 e2 Qh2 Ba6 Qb6 Bd3 Kd2 e1B+ Kd1 Bd2 Rh4 Bc1 Ke1 Be2 Re4 Nc6 Ra4 Nd4 Bg3 Bg5 Be5 Ke3 Bg3+ Kd3 Bf2 Kc2 Be3 Bf4 Kf2 Kd1 Qe4 Bh5 Bb5 Be2 Qe7 Ra6 Qa5 Rag6 Qb6 R6g5 Qed6 Ba3 Qe7 Bad6 Qa7 Ba3 Rc5 Ne6 Qa5 Bb4 Rd5+ Bd2 Ba7 Bd6+ Qf6 Nd4 Qb6 Qh5 Qff7 Bc5 Qe7 Qf7+
2B1q3/1b3b2/k3q1pn/3q1R2/4pp1b/NRnN1N1r/K3Q3/1NQnrrBQ w - - 0 1 illegal: No proof kernel
1N1bB1k1/q2KnnB1/R1r2pp1/Qp4nb/7N/q2RN1br/4Rr1Q/3q3R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 a4 d3 e4 g3+ Kf3 f6 h4 Kf7 c4 g2 c5 d4 c6 g6 a5 d2 e5 b3 Ke4 d3 c7 f3 h5 b6 h6 b2 h7 f2 e6+ Kg7 a6 Nh6 a7 Qe7 Kd5 Qa3 e7 Bg4 c8N Nf7 e8R Nc6 Ne7 Rc8 a8R Bh5 Qa4 d1N Ke6 d2 Ra6 Nc3 Qa5 d1Q Bb5 f1R Nd2 b1Q Nc4 Rf2 Nf3 g1B Nh4 Ne4 Ne3 Bh2 Rd8 Qg1 Rd3 Bg3 Kd7 Neg5 Ra2 Qa1 Re2 Qd1 N7d5 Q1a2 Nb4 Ne7 Nc6 Qa1 Nb8 Rc6 Bc4 b5 Bd2 Nd6 Bf7 Qd4 Be8 Qa7+ Qc7 Ndf7 Bb4 Ng8 Bd2 Be7 Bb4 Qa8 Qa5 Bd8 Bd6 Ne7 Bc5 Rg8 h8Q+ Kf8 Qh7 Rh8 Qh6+ Kg8 Bb4 Nf5 Bf8 Ne7 Bg7 Rh7 Nhf5 Bf3 Qh2 Rh3 Nh4 Bh5 Qb6 Qa7+ Qc7 Qa8 Qa5 Qa7+
BN1n2B1/2QRr1pK/2q3b1/N1rBb3/Qb2p1Qr/1q1p4/1n1n1k2/B1R1q3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kg6 a4 Kf5 f4 b5 c4 e5 h5 d5 c5 e3 Kd3 e2 a5 e1Q a6 b3 h6 b4 h7 b2 c6 b3 a7 g3 c7 g2 Qf3 Qd6 Na3 b1R Nc4 b2 Na5 Nf6 Ne2 g1B Bg2 Qc6 Be3 Bd7 c8B Bh2 Ba6 Bd6 Bc4 Ne4 Ba2 Re8 h8Q Nd2 Qh4 Re7 Rf1 Rd1 Rc1 Be8 Qhg3 Bh5 Qfg4+ Kf6 f5 b1Q+ Rc2 Qb2 Rc1 Bb4 Bh1 Qa4 Rc7 Rc1 Rd7 Nc6 Bc4 Rc8 a8B Nd8 Be4 Rc5 Bg5+ Kf7 f6 Qc6 Bf3 Kg6 f7 Ra1 f8Q Ra4 Bf6+ Kh6 Qe8 Qb3+ Nc3 Qa1 Rc1 Qab1+ Ke2 d3+ Ke3 Qa1 Na2 d4+ Kf2 Qac3 Bfd5 Qa1 Kg2 Qac3 Kh3 Qa1 Rg1 Qe1 Kh4 Ba3 Nb7 Qa6 Qe6 Qf2 Rd6 Ne4 Rg2 d2 Na5 d1N Rg1 d3 Bdb7 Ndc3 Nb4 Nd2 Rc1 Nd1 Nbc6 Qe1 Nb8 Rb4 Bf3 Qc8 Qa4 Qc6 Bg4 Kg6 Bd5 Rd4 Qd7 Bb4 Qc7 Rf4 Rd7 e4 Ba1 Nb2 Kh3 Kg5 Bge6+ Rg4 Bg8 Kf5 Qg2 Be5 Qe2 Kf4 Qd1 Rg3+ Kh4 Ke3 Qg4 Rh3+ Kg5 Rh4 Qe6 Be2 Kg6 Bh5+ Kh7 Kf2 Qg4 Bg6#
N1QN2n1/R1pnp2q/6bB/B3R3/2b1Qr1r/K1q1pqkB/1rQn1b2/6B1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 Kf7 h4 Kf6 a4 Kf5 d4 g5 Kd2 b5 Kc2 g3 Kb2 g4 a5 b3 h5 c3+ Ka3 c2 a6 g2 h6 b2 a7 g3 d5 Nd7 h7 Ba6 d6 Bh6 Nd2 b1B Ne2 Kg4 f5 g1Q f6 g2 f7 Qb8 f8B Be3 Nc4 Qf2 Bh6 g1R Nd4+ Qf3 Nc6 Bf2+ Bce3 Rg2 Rh5 Kg3 Nd8 c1N Qc2 Nb3 Rd5 Nd2 Nb6 Qb7 Rh5 Qc6 Re5 Rc8 a8Q b4+ Kb2 b3 Ka3 Rh2 Bh3 b2 Qb7 Rb8 Na8 Bc4 Qc8 Rb4 Ra2 Ngf6 Ra1 Rf8 h8B Ng8 B8g7 Rf4 Qb7 Qe2 Bb6 Rh4 Ba5 Qf3+ Be3 Rf4 Bh6 Rb6 Bg2 Rhh4 Bh3 Bba2 Qc8 b1Q Qb7 Rb2 Qc8 Nf8 d7 Bf7 Qb7 Bg6 Qb4 Bb3 Beb6 Qcc3 Qc4 Be1 Bg1 e3 Q4e4 Bf2 Nf7 Rf5 d8Q Rff4 Qc8 Nd7 Nd8 Bc4+ Ka4 Qh1 Qc1 Bd5 Bb4 Rf8 Qd4 Bgf7 Qd1 Qh7 Qc2 Bg6 Qde4 Rff4 Ra2 Qd3 Bc3 Bb3+ Kb4 Qf3 Ra7 Qd4+ Ka3 Bc4 Ba5 Qc3+
3k2q1/Qp3Q2/pRbBRN2/3r2B1/b2b2n1/Q1qB2K1/n1npQ2r/q5rN w - - 0 1 illegal: No proof kernel
2NQ2rn/KR3Q1Q/4pR2/nr1R4/pqbp3b/1b3nr1/BB1Q3r/4Nk1r w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Kf6 f4 h5 c4 d5 b4 a5 g5+ Kf5 b5 Kg4 b6 Kg3 g6 h3 f5 h2 g7 e6 b7 e3 Kd3 Kf2 f6 h4 c5 a3 f7 a2 c6 e2 c7 e1N+ Kd2 h3 Na3 d3 Kc3 d4+ Kc4 d2 Kb5 a4 Kb6 Ne7 g8Q Ng6 Nc2 Qe7 Ne3 Nf3 Bc4 Nc6 b8R Ra5 Nd5 Ba6 Qh7 Rg8 c8Q Nh8 Bb2 Kg2 Bb3 Bc4 Qd8 Rb5+ Ka6 Kf2 Rb7 Na5 Nb6 Qb4 Ka7 Be7 f8Q Bh4 Qff7 Rg3 Rc1 a1R Ba2 Kg2 Qe1 d1B Qd2+ Kf1 Nc8 Rb1 Rc3 Bdb3 Re3 Re1 Re5 Re4 Rh5 Reg4 Rd5 Rg8 Ne2+ Kg2 Rf1 h1R Ng1+ Be2 Rc1 h2 Rcc5 Kf2 Rf5 Kg2 Rcd5 Kf1 Rf6 Bec4 Nh3 Rhg1 Nf2 h1R Nd3 R1g2 Ne1 Rgh2
1n2Rr2/Q2Bb3/1npqnbQQ/r1p2bBr/pB2R3/1k1K1N1B/N2b3b/8 w - - 0 1 legal: proof: f4 b5 g4 e5 c4 exf4 a4 bxa4 c5 h5 c6 hxg4 Bh3 dxc6 Bf1 c5 h4 Kd7 e4 Ke6 Ke2 f5 d4 a5 b4 g5 e5 Kd5 e6 Kc4 b5 a3 h5 g3 b6 a2 b7 g4 d5 g2 h6 a4 h7 c6 e7 g3 e8B Ra5 d6 Nf6 d7 Nh5 Rh3 Be7 Rh2 Ng7 Rh6 Ne6 Rh5 f3+ Ke3+ Kb4 Qd3 f2 Rh1 f4+ Ke4 f3 Nc3 Kb3 Bd2 Qc7 d8B Qd6 Re1 a1B Rh4 Rf8 Be2 f1N h8Q f2 Bg4 Ne3 Qh6 f1R Bh3 R1f5 Bd7 Nc4 Nf3 g1B Na2+ Bc3 Rg4 g2 Qb1+ Bb2 Bb4 Rh5 Re2 Bd4 Kd3 g1B Rge4 Bh2 Qg1 Bc1 Qgg6 Nb6 R2e3 Na6 b8Q Bd2 Qc7 Nb8 Qa7 Bh4 Bg5 Bf6+ Rd4 Nc7 Re7 Ne6 Re8 Be7 Be3 Bhf6 Bg5 Nd5 Rf4 Nb6+ Nd4+ Kb2 Re4 Nc7 Bde6 Bd7 Bd5 Bg4 Be6 Bf5 Bc8 Ne6 Bd7 Qe5 Nf3 Kb3 Qg8 Qc7 Qgg6 Qd6+
b6q/KB1RBk1N/1p2R2B/Qr6/1pNb1r2/b1rN2b1/3np2Q/1b2Bn1n w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e5 h4 d5 a4 g5 f4 d3 Ke3 b6 c4 d4+ Kd2 g3 f5 g2 c5 g4 a5 g3 a6 Nd7 h5 Nh6 c6 Nf6 c7 Bb7 c8N Bg7 a7 Kf7 Qa4 Nhg4 h6 Nf2 Nh3 g1B h7 g2 Ne7 Rc8 a8Q Rc5 Q8a7 Ba8 Qb8 Rc6 Rh2 Nh1 Na3 Qc8 Ng8 e3+ Ke1 d2+ Ke2 d1R Nf2 e4 Rh6 Ng4 Nf6 Nh2 Qa5 Rd3 Ra2 Rc4 Rd2 Re8 h8B Re5 Nh7 Qd8 Ke1 e2 Re6 Re3 Rd1 d3 Kd2 e1N Qd6 Rh3 Be2 Nef3+ Ke3 d2 f6 Nf1+ Kf4 Kg6 f7+ Bf6 f8B Rb5 Be7 Kf7 Bd3 e3+ Be4 Bb2 Bc3 e2 Qb8 Rd4 Nc4 Qh8 Qe5 Ba3 Kf5 Bd5 Qh2 Ba8+ Bd5 Rd3 Ke4 Rh4+ Ng4 Bc5 Bc6 Re3+ Kd5 g1B Nf2 Rg4 Bd4 Rb3 Bc3 Be3+ Kd6 Bf4+ Kd7 Bg3 Bd5 Kg8 Kc8 Rh4 Bb7 Re4 Re1 d1B Bh6 Bc2 Rd1 Rf4 Kb8 Bb1 Ka7 Kf7 Be1 Rc3 Rd7 N3d2 Nd3 Bd4
b5B1/prQb1R1B/K3nB2/1n1nQr2/1n1p4/p1R3rB/1k5q/NNn1b2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 c4 h5 e4 f5 b4 f3 g4 f2 g5 a3 c5 h3 c6 h4 c7 d3 g6 Kd4 g7 f4 e5 d2 e6 f3 e7 h2 e8R h3 Qb3 d1N Bd3 f1R Bc4 f2 Nd2 Rh7 Be2 Nd7 Ka5 Nc3 b5 Qh4 b6 Nc5 b7 Nf6 g8B Bd7 b8Q Ne6 c8B Nb5 Qc7 Bb4+ Ka6 Re7 Ne4 Be1 Qc6 Rg7 Nc5 Rb8 Na4 Rg3 Bg5 Rb7 Nc5 Qh7 Qa4+ Kc3 Qf4 d4 Qcc7 Nd5 Bd3 Kb2 Nf3 Qh8 Nd2 Nb4+ Ka5 Qh6 Re7 Qh7 Ncb3 Qh8 Rg1 h1B Rc1 h2 Bf6 Be4 Rf7 h1N Rc6 Qh2 Qfe5 Nd8 Qf5 Rb8 Bb7 Ne6 Rc3 Bg2 Bd5 Bf3 B5c4 Ba8 Nb1 Rb7 Bc2 Rh3 Qg5 Ng3 Na1 Ne2 Qge5 Nc1 Rh1 Rf3 B2d3 Rg1 Bd5 f1N Bdh7 Rf5 Bg2 Ne3 Bf1 Ned5 Bh3 Nbd3 Ka6 Rg2 Rf8 Rg3 Rf7 N3b4+
1q3rr1/NQ3q2/b1NNknR1/n5r1/2R2B2/ppNR4/K1Bp1r1b/n5rQ w - - 0 1 illegal: No possible last move, all moves rejected
2q1R2r/1nR3B1/n4nnn/1B1b3N/Qrp2Q2/bBp3Kb/BQp3N1/1q5k w - - 0 1 illegal: No proof kernel
1R1B1Q2/rn3Q1r/3N2q1/2k1Nbp1/2n1q2n/q5q1/1pK1pqQR/QBR1b3 w - - 0 1 illegal: No possible last move, all moves rejected
NKqQ3R/r6b/bb5k/1rbB1p2/n2q2Rr/B1N3p1/1bp5/NN3QnR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 d4 g5 e4 c3 a4 c4 d5 b3 e5 c2 d6 c3 a5 f3 Kg3 b2 a6 b4 a7 f2 e6 b3 e7 Nc6 h5 Nd4 h6 Ba6 h7 Ne2+ Kh2 g3+ Kg2 g4 Rh4 Qc8 Na3 b1R Rh1 b2 Nf3 Nf6 Nd2 Ng1 Bc4 Nd5 Qf1 Nb6 Nb3 Na4 Bd5 f6 Be3 c1B Bc5 c2 Ra2 Bd3 Na1 Bg6 Bb4 f5 Bc5 Rb8 a8N Rb7 Bb4 Ra7 Bc5 Be3 Bb4 Bb6 Bc5 Bg7 Bb4 Qe6 d7+ Kf7 e8N Be5 Nf6 Kg7 d8Q Qc8 Ne4 Bed4 Rh5 Bf6 Rg5 Kh6 Nc3 Bg7 Nc4 Be5 Ba3 Bf6 Nd2 Bfd4 Kh1 g2+ Kh2 Bbc5 Kg3 Bg7 Kf4 g3 Qe1 f1B Rg4 Ba6 Qe2 Re8 h8R+ Bh7 Qf2 Re6 Qe1 Rb6 Qc1 Rb5 Qf1 Rd1 Ndb1 Rd3 Nd2 b1Q Rb2 Qd1 Rb1 Bgd4 Rc1 Bb6 Ndb1 Bdc5 Ke5 Rd4 Qf2 Rf4 Qf1 Bd4+ Kd6 Re4 Na2 Bb2 Nac3 Qd4 Qe2 Nh3 Rh1 g1B Qf1 Bf2 Rg7 Rh4 Rg4 Bb7 Rf4 Ng1 Rg4 Qcc4 Kd7 Bc5 Kc7 Ba6+ Bb7 Be3 Kb8 Bb6 Qf3 Qd7 Qf1 Qe8 Bd5 Bec5 Qc8 Qc6 Qe8 Qd4 Qd8 Qc8+
3kBQ2/B1rnq3/R4n1p/N1r3br/RK6/1Q1b2rQ/1pbp1N1B/1r1q2B1 w - - 0 1 illegal: No proof kernel
r1k5/r4r1b/5p1B/QrK1N1bQ/2R2q1p/3NnqN1/p1N3q1/3rnRQB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 d5 e4 Kd7 b4 h5 c4 a5 g4 h3 e5 d3 b5 d2 c5 f3 Ke3 d4+ Ke4 h4 Kd5 a3 g5 h2 g6 f2 b6 a2 g7 d3 b7 a4 Qe1 d1Q Bh6 a3 Nf3 d2 Bg2 Qc7 Rf1 Nc6 Bh1 Be7 b8N+ Kd8 e6 Bg5 Nd7 Qf4 Nfe5 Nd4 c6 Qdf3+ Kc4 d1R Nd3 Nc2+ Kc5 Ne7 N7e5 Nd5 g8Q+ Kc7 e7 Nde3 e8Q Bf5 Qb4 Bh7 Qd2 f6 Qh5 Ne1 Qb4 Rf8 Qa5+ Kc8 c7 Qg2 Qgg6 Rf7 Qg7 Kb7 Qgg6 Ra8 c8N Kb8 Nd6 Qgf3 Bg2 h1Q Ne4 Kc8 Ng3 Qg1 Bh1 Qgg2 Nd2 Raa7 Rc1 a1R Nb3 Rb1 Rc3 a2 Nd4 Rb8 Rc4 Rba8 Nc2 Rb1 Rg1 f1R Qg7 Rf2 Qgg6 Rd2 Rf1 Rb2 Qe4 Rd1 Qd4 Ng4 Qf2 Ne3 Qg1 Rb5+
1Q1K1BR1/Bb1rn1qQ/1p6/3b2b1/prBq4/4bn1b/p2BRn2/1R1NN1k1 w - - 0 1 illegal: No proof kernel
kbb3rN/n5B1/pBr1rn1Q/1p1K2q1/1pBQ1R1r/1Bq1rQ2/3R4/1n1N4 w - - 0 1 illegal: No possible last move
nkBK3q/1qNp4/2r1QR1p/2bbB1np/3r1QR1/5Q1n/1RNn2q1/2nQ4 w - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 f5 g6 h5 gxh5 f6 exf6 Bb2 f5 Bc1 f4 Kd2 b5 Kd3 f5 e4 f3 a4 h6 g4 f4 c4 f2 e5 f3 Ke4 b3 Kf5 d3 a5 d2 e6 b2 e7 b4 g5 b3 c5 Bb7 c6 Ra7 g6 Nf6 g7 Ne4 g8R Ng5 Kf6 Na6 c7 Bd5 c8Q Nc7 a6 Na8 Na3 b1Q Ra2 b2 Qb8 Qc2 Qf4 b1Q Bb5 f1N Ne2 f2 Nc3 Ng3 Rf1 Ne2 Bb2 Nc1 Be2 Rb7 a7 Rb4 Ba6 Rd4 Bc8 Qe4 Ncb5 Qg2 Rg6 Rg8 Rg1 f1N Nc2 Rh8 Bc3 Qb4 Rb2 Qb3 Qe1 d1N Qed2 Nf2 Qd1 Nd2 Rf1 Rc4 Be5 Nfh3 Rf2 Rd4 Rf3 Nb6 a8Q Qb4 Qa3 Na8 Rg3 Rg8 Qaf3 Rg7 Rg4 Qb3 Kf5 Rg8 Ra6 Rg6 Rb6 Rc6 Nc7+ Kf7 Ra6 Qb7 Rab6 Bg7 Ra6 Qh8 Rab6 Bf8 Ra6 Rcc4 Rd6 Rc6 Rf6+ Kg7 e8Q Bb4 Qe6 Bc5 Rg6+ Kf8 Na6 Be7 Rf6+ Ke8 Nc7+ Kd8 Kg6 Bb4 Kf5 Bc5 Kg6 Nh7 Kf7 Qg1 Ne8 Qg3 Nd6 Kc7 Ke7 Qg7+ Ke8 Kb8 Kd8 Qg2 Ne8+ Rc7 Qd6 N7g5 Qe6 Qh7 Nd6 Rc6 Nb5+ Rd6 Nc7 Rc6 Q4e4 Qg7 Qef4 Qh8+
3nn2n/2k5/Qp2B1n1/1QKnN2r/q2N1B1N/r4Rbn/pp2N1bR/2n3R1 w - - 0 1 illegal: No possible last move, all moves rejected
qn3k1q/1qr1r1R1/1n3Nn1/1n3N2/3Rb2p/bp1Q1b2/Q1QBK2p/Q2B2R1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 d5 a4 h5 c4 f5 g4 b5 e5 d3 a5 f3 g5 f4 e6 f2+ Kd2 b3 a6 f3 e7 b2 c5 b4 g6 d4 g7 h3 c6 h4 c7 h2 a7 Rh7 Ra4 Bb7 c8Q Be4 Be2 f1Q Qa6 f2 Bg4 Qg2 Be6 f1N+ Ke1 Nd2 Bf5 Nc4 Nc3 b1Q Nd5 Nb6 Qc2 d2+ Kd1 b3 Qad3 Qa2 Bg4 Kf7 e8R Ba3 Nf6 Ne7 Ne2 Ng6 Rg1 Qh1 Re5 Qh8 Ng3 Qa1 Ke2 d1N Nf5 Nc3+ Kf1 Qa2 Bd1 Nb5 Bd2 Qa1 Qa2 Qf3+ Ke1 Qh1 Qdc2 d3 Rd4 Qg2 Ne3 Qh1 Rg5 Ke7 g8Q Qf3 Qe6+ Kf8 Qec4 Rc7 Nf5 Qh1 Bc1 d2+ Kf1 Re7 Q4d3 Rc7 Bg4 d1B Bd2 Bdf3+ Kf2 Bg2 Bd1 Bgf3 Kf1 Na6 Kf2 Re8 a8Q Nb8 Ke3 Ree7 Qa4 Ne5 Rg7 Ng6 Qa5 Qc3 Kf2 Qc6 Qac3 Qa8 Qca1 Qg2+ Ke1 Qg3+ Kf1 Qd6 Kf2 Qdc6 Ke1 Qcb7 Kf2 Bg2 Ke2 Bgf3+
3qr3/B6n/R3rN1R/1Q1b1k1B/n1p4p/1K2rbB1/1p1qQ1Qq/1q1N2bB w - - 0 1 illegal: No possible last move
7N/1n1b1rq1/1K1b3n/1Q2Brp1/q1pQB2b/2QRn3/4pR2/1QqbBNk1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 c3 Ke3 Kd7 Kd4 Ke6+ Kc5 Kf5 f4 e5+ Kb5 c5 d4 e3 h4 Ke4 a4 b3 f5 c2 a5 g3 a6 c4 f6 g2 a7 b2 h5 Nd7 h6 Rh7 f7 Qe8 d5 Nc5+ Ka5 b5 d6 b4 d7 b3 d8Q Nb7+ Kb6 g5 Q8d2 Bd6 f8Q Qa4 Qg7 Bd7 Ra3 Rf8 a8Q Rf5 Qe7 Rhf7 h7 Nh6 Qaa5 Kf4 Qf6 Kg3 h8B e4 Qdb4 Kf2 Bd2 c1Q Nf3 g1B Ne5 Bh2 Qg4 Bg3 Bd3 Bh4 Qab5 Qc3 Rh3 Qc1 Qf4+ Kg1 Rh2 Qc3 Ng6 Qc1 Nc3 b1B Nd1 b2 Rf2 Bc2 Bg7 b1Q Nh8 Qa1 Qb1 Bb3 Qfb2 Bc2 Q2b3 Qf6 Q3b4 Qg6 Be5 Qg8 Q4b2 Qg7 Qf3 Bb3 Qd4 Bc2 Nc3 Bd1 Nd5 e2 Ba5 e1N Ne3 Qac2 Nf1 e3 Be4 Ng2 Be1 e2 Qfb3 Qa2 Q3b2 Ne3 Rd3 Qa1 Qbc3 Qa4
3R2bb/1Q4BR/2QKn1rb/2BBNpN1/2q2rrp/2q5/2nq1q1p/B1Nk4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 h5 e4+ f3 b4 f5 d5 a5 d6 c5 b5 h3 b6 a3 g3 c3 b7 c2 d7 a4 Bf4 c1R Qd6 h4 Nd2 h2 Be2 a2 Qb6 c4 Nh3 c3 Nb3 a3 Ng5 c2 Rd1 Ra4 Be3 Rh6 Bc4 f2 Bd5 f1Q Bc5 Na6 b8B Qf2 Qb7 Ne7 Bc7 Rb1 Nc1 Ng6+ Ke6 Rd4 Be5 Nb4 Bg7 Nf4+ Ke5 Qa5 d8B Be6 Bdf6 Bg8 Rd2 Rg6 Rd3 Be7 Rd1 Bd8 Kd6 Ne6 e5 Rf4 Rd3 Rb3 Rb1 a1Q Rd4 Nf8 e6 a2 e7 Ne6 e8Q Qc3 Qec6 a1B Rd1 Bb2 Ra1 Qb5 Ra7 Qbc4 Rd3 Qcd2 Bc3 Bf6 Rd4 Ba3 Ba1 Re3 Rd3 Ree4 Bh8 Bab2 Kd7 Qf1 Nh7 Rf2 Qbb5 Re1 Na2 c1Q Bg2 Q1c2 Nc1 Rg5 Rd6 Bg7 Bd5 Bbc3 Ke7 Re4 Rd8 Kf3 g4 Qg1 Kd6 Bh6 Be5 Rg7 g5 Bf7 g6 Qb2 Rad7 Nc2 Qbb7 Bd4 Re7 Qbc3 Ng5+ Ke3 Rc7 Rg4 Bf6 Rg8 g7 Rff4 Re7 Qgf2 Red7 Rf8 g8N Re8 Ne7 Rg8 Ng6 Rg7 Ne5 Rg6 Ned3 Bg8 Re7 Qfe2 Rh7 Qf2 Nb3 Ke2 Nbc1+ Kd1 Bh8 Bf6 Ne5 Q4d3 Bg7 Qdd4 Bf8 Bh8 Bg7 Qdc4
q2nb3/2QR1R2/q4Qb1/5pp1/rpKQ4/3B2bn/N3R1qB/1r1qnQNk w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 c4 Kf5 a4 g5 h4 b5 c5 d5 e3 f3 h5 f2 h6 b3 a5 b4 h7 g3 c6 g2 a6 b2 c7 Ne7 a7 Nbc6 Nf3 Kg4 e4 Kg3 e5 g1N e6 Nh3 Na3 b1B+ Nc2 Nf5 e7 Ne3 e8Q Ng2 Nd2 Bd6 Qe4 Bd7 c8Q Be8 Ra2 f6 Be2 f1Q Nf3 Bb8 Ng1 Ne1+ Kd2 d3 Ne3 d4 Nd5 Qf2 Nc3 Qg2 Qc7+ Qd6 Rc2 Nd8 Na2 Kf2 Rh2 Qa6 Rc5 Rf8 h8Q Rf7 Rd5 Rh7 Qc5 Bg3 Rd7 Re7 Qc8 Re6 Rf7 Rc6 Bb2 Rc1 Qc7 Bc2 Qg4 Rb1 Rd7 f5 Bf1 Bb3 Qf6 Bbf7 Ba1 Bg6 Rf7 Rb8 a8R Rb5 Ra7 Ra5 Qc5 Ra4 Rad7 Qa8 Qc7 Qa6 Qdc1 Qa8 Kd1 d2 Bd3 Nf3 Kc2 Qa6 Qb2 Ne1+ Kb3 Qa8 Qd1 Qa6 Bb5 d3 Kc4 Kf1 Qdc1 d1Q Qbd4 d2 Bb2 Qga8 Re2 Qc2+ Bc3 d1Q Q1f4+ Bf2 Qc1 Qb2 Bd2 Kg2 Bf4 Kh1 Bh2 Bg3 Q1f4 Q6c8 Qf1 Qaa6 Kc5 Qaa8 Bd3 Qbd2 Kc4 Qb2 Re3 Qbg2 Re2 Qca6+
n2R1bq1/2R5/qrbNN1BR/4p2p/Kb1r4/Q2nB3/NQ1Nn2p/1rb1k3 w - - 0 1 illegal: No possible last move
Rb4r1/4QR2/r2bN1N1/1r1pR3/B7/2BK1npn/1b3pqk/Rn1bNQ1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 c4 Kf6 b4 Kf5 h4 d5 c5 g5 c6 a5 e3 g3 b5 g4 h5 d3 h6 f3 b6 a3 b7 f2 e4+ Kf4 c7 f5 e5 a4 h7 a2 e6 g2 e7 Kg3 e8N a3 Nd6 f4 Nc3 f3 Na4 Nf6 Qb3 Nbd7 b8Q Ne4+ Ke3 d2 Be2 f1Q Bd1 f2 Be2 d1R Q8b7 Rg8 h8R Ne5 R8h7 Nd2 Nf3 g1N Qc2 Nh3 Bb2 Qg2 Qc4 Qh4 Nc5 Nb1 Re1 Ra6 Nf7 Bd6 Bc3 Rd2 Ne6 Rb2 Qa7 Rb5 Nh8 Bd7 c8R Qh6+ Nfg5 Kh2 Ng6 g3 Rf7 Nf3 Ra8 Bc8 Qe7 Bb8 Nc5 Bg4 Kd3 Bd6 Nge6 Qc1 Rd1 Bh5 Rd2 Qch1 Bd1 Rb4 Kc2 Ne5 Re2 Rb5 Nd3 Bb8 Re3 Be2 Ne1 Nf3 Qd3 Bd6 Kc1 Bb8 Ba4 Bd1 Qf1 Nbd2 Rb1 a1B Bb4 Bae5 Bc3 a2 Ra1 Nb1 Re4 Bed6 Re5 Be2 Kc2 Bd1+ Kd3 Nbd2 Rc1 a1B Rb1 Bb2 Ra1 Nb1
5B2/R3b3/Q1q2K1Q/2npB1nR/5R1p/p3r1q1/qBbqrN1k/3Bn1bN w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 h5 b4 a5 c4 d3+ Ke3 h3 Kd4 d2 g5 Kf5 g6 e5+ Kd5 h4 g7 e3 c5 e4 b5 h2 c6 e2 b6 Kg4 Ke5 Kg3 f5 e1N f6 e3 b7 e2 c7 a3 f7 a2 Ba3 a4 Qc2 d1Q Bh3 Qd2 Kf5 Nh6+ Ke5 Na6 b8B Nc5 g8R+ Q8g5+ Bf5 Bb7 c8Q Be4 Qc1 Bc2 Nh3 d5 Rf1 h1Q Bb2 Kh2 Rf4 Qg3 Bd7 Bd6+ Kf6 Qhf3 f8B Nf7 Bc6 Ng5 Nf2 Rh7 Nc3 Re7 Qb7 Re3 Nce4 Qh5 Qb6 Qe8 Nh1 Ra6 Bb5 Qc6 Rh8 Ra7 Qa6 Re7 Rh5 a3 Rb1 a1Q Ba4 Qa2 Nef2 Nef3 Bc7 e1B Bb3 Re2 Ba4 R7e3 Bb3 Bd3 Bd1 Bc2 Ne4 Qd3 Bd8 Nf7 Rff5 Bf2 Bc7 Ne1 Bd4 Rf3 Qh6 Rfe3 Rb7 Qd2 Rf4 Bg1 Ra7 Ng5 Nef2 Be7+ Kg7 Qa5 Bb2 Qd2 Bce5 Bd6 Kf6 Be7+
3NnqrN/R4NQ1/2Q1bb1K/1pN5/1q1b2r1/n1p4R/q1p3b1/1kB1rB1Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kd6 d4 Kd5 a4 Ke4 e3 b5 h5 c5 a5 f5 a6 g5 a7 b3 h6 b2 d5 f3 Kg3 f4+ Kh2 f2 h7 f3 Kg3 c3 d6 c4 d7 Nf6 Bd2 Ne8 Qe2 Qa5 d8Q Bg7 Rh2 Na6 Bc1 Qb4 Qed2 Rg8 h8N Be6 Rh7 Bf6 Qb6 Rd8 a8N Rd4 Qe2 Rd1 Qc7 Re1 Bg2 f1B Nh3 Qa5 Qe7 Nb4 Qg7 Qa2 Qd1 Nc2 Nc7 Na3 Nd2+ Kd3 e4 b1Q e5 f2 Rh6 c2 Nb3+ Kc3 Nc5 Qb4 Rh7 Bd3 Rh5 Be4 Bf1 Bc6 Qd5 Bb7 Qh1 Bg2 Nb7 Kb3 Na6 c3 Rh7 Nc7 Nd8 Ne8 Be3 Kb2 Nc5 Qab3 Ra2+ Kb1 Bc1 Qb2 Nf4 Qa1 Nfg6 Qab2 Rh3 Qa1 Be2 f1Q Nhf7 Qf5 Ngh8 Qf3+ Kh2 Qa8 Kg3 Qc8 Kf2 g3+ Ke3 g4 Nb3 Be4 Kf4 g2 Nc5 g1B Bd3 g3 Bf1 Bc4 e6 g2 Kg4 Bgd4 Kh5 g1R e7 Bg2 Kg6 Be6 Kh6 Nc4 Ra5 Qa2 Ra6 Na3 Ra7 Nd6 e8Q Qb8 Qc6 Ne8 Bb2 Qd6 Bc1 Qf8 Bc4 Bf3 Be2 Rg4 Bf1 Bg2
kbq2K2/n2n1b1N/1rr1qp1R/3b1R1p/1p1nN1b1/N4Q2/1B1RB1Q1/1R4r1 w - - 0 1 illegal: No possible last move
3q4/Rr1qr3/b2R1ppb/b2N1k2/B1QB2p1/bQN5/1n3KnR/q1Bn2R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 e4 Ke6 d4 b5 h4 c5 h5 c3 a5 c2 e5 f6 d5+ Kf5 a6 f3 a7 c4 e6 f2+ Ke2 g6 e7 c3 e8R b3 d6 b4 h6 b2 d7 b3 h7 Ba3 Re7 Na6 Qd4 Rb8 a8Q Nc5 Bd2 c1B Rh3 c2 Be3 Rb7 Bg2 f1N Qda4 Nh6 Bd4 Re8 h8B Ne3 Qb8 Nd3 Bg7 Bd2 Nc3 c1B Qc4 b1Q Rh2 b2 Bc6 Ng2 Nd5 Ba5 Ba4 Be3 Rf7 Re7 Qg3 Qc2+ Kf1 Bf4 Ne2 Qd2 Nec3 Be3 Re1 b1Q Bf8 Qa1 Rb1 Ng8 Bh6 Nb2 Bf4 Nh6 Qf3 Qc7 d8R Qc6 Rd6 Qd7 Qfe2 Qd3 Qb3 Qd8 Rh7 Qb5 Rc1 Qbd7 Qec4 Rb4 Qe2 Nf7 Bg5 Qe6 Nb1 Ra7 Nc7 Ne5 Rhd7 Nec4 Nd5 Ba6 Nbc3 Bf4 Kf2 Qee7 Bh4 Bh6 Bg5 Rb5 Bd2 Nce3 Rg1 Qf7 Bc1 Rb4 Be5 Re4 Rb7 Qfd7 Bd4 Re6 Qec4 Re7 Rb8 Rc7 Ra8 Rb7 Ra7 Ned1+
KNn5/1Q3n2/N2p1NqN/b1pp3R/3b4/2rbRBRQ/2k2nrq/q1B4n w - - 0 1 illegal: No proof kernel
4b1QK/6q1/Rq1pBpbB/n3R1n1/n1pq1N2/rq1N1r2/1Q3b2/1R1B1Bk1 w - - 0 1 illegal: No proof kernel
6BB/k1qN1NK1/1np1pr2/1b3qB1/1q6/1Nqr2BR/1pbn1Qr1/1QR1b3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 h5 Kg6 e3 d4 b3 a4 b2 g4 e2 f4 e1Q g5 c3 a5+ Ka7 a6 b5 f5 b4 f6 c6 f7 h3 d5 h2 d6 e6 d7 h4 Qd2 h3 Be2 c2 Bh5 b3 Nf3 Nf6 Ne5 Qc7 d8B Bb4 f8B Nbd7 Bd6 Ne4 Qf2+ Nb6 Nd2 b1Q Bf6 b2 Nb3 Nd2 Nf7 Rd8 Bg3 Rd3 Bh8 Bb7 Kh6 Rf8 g6 Qe4 g7 Qef4+ Ng5 Rf6+ Bg6 Ba5 g8Q Qb4 Nf7 Bc8 Ra3 Bb7 Re1 h1B Qh7 h2 Kg7 Be4 Bh5 h1R Rf1 Ka8 a7 Ba6 Qg6 Kb7 a8N Ka7 Qgf5 Rh4 Bg6 Rh3 Bh7 Bb5 Bg8 Rh2 Qh7 Rg2 Rh1 Nf1 Bg5 c1Q Ra1 Qce1 Rh3 Qec3 Qg6 Nd2 Qgf5 Qf1 Rc1 Rd4 Qh7 Bc2 Qe4 Qfd3 Qee1 Qf5 Qh1 Na4 Nb6 Rd3 Nd7+ Nb6 Ra1 Ba6 Qb1 Bc4 Qa2 Ba6 Rc1 Bb5 Qb1 Qbc4 Bd6 Nf3 Rhh1 Q3d4 Bh2 Be1 Bd6 Qcc3 Bg3 Nd2 Rh3 Qdb4
1qN2b1K/3n4/1p4qp/N1p2BrB/R5BB/1bnQ3r/1k1r1q2/Nb1Rq1Q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 g4 h3 d4 f3 a4 b6 d5+ Kf6 d6 h6 a5 f2 a6 b3 d7 h2 g5+ Ke6 g6 f6 a7 b2 g7 c3 Bh3+ Ke7 Kf5 f1Q+ Kg6 f5 e4 Ke6 e5 c2 Nd2 Kd5 e6 Kd4 e7 Kc3 e8B b1B Bg4 f4 Nc4 f3 Ra4 f2 Bg5 Qg2 Na5 f1Q Ne2+ Kb2 Bh4 Qff2 Qg1 Nf6 g8N Ne4 Nc1 Nc3 Ne7 Rg8+ Kh7 Rg5 Ncb3 c1Q+ Kh8 Qce1 Na1 Qge4 Beh5 Qg6 Bf5 Ba6 Bfg4 Bc4 Nc8 Bb3 Bf5 Qc7 d8Q Nd7 Bhg4 Rb8 a8B Rb7 Bh5 Qb8 Bhg4 Rc7 Baf3 Rc6 Bd1 Rd6 Bh5 Rd2 Bdg4 Nf6 Qd3 Nd7 Qgg3 Qfe3 Rf1 h1R Qg1 Q1f2 Rc1 Qee1 Rd1 Rh3
2k5/3q2R1/1pNr1Npb/B4rR1/b3q2n/1KBr2nQ/Bb3p1b/2NQn1N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Kd7 h4 f5 d4 c5 Kd2 g6 Kc2 f3 a4 b6 h5 c3 e5 c4 a5 f2 d5 g3 h6 f4 d6 f3 a6 g2 a7 Nf6 h7 Nc6 Bf4 b3+ Kc1 b2+ Kc2 Nh5 Ra2 Ne7 Be2 f1R Rh2 Ba6 e6+ Kc8 Qd3 Ng3 Bd2 Qd7 Ra5 Nef5 e7 Bb5 e8N Nh4 Nf6 Bh6 Be1 f2 Nd2 Rd8 Nb3 Rf8 Bd2 Rd1 h8B Rb8 a8Q Rf7 Ng8 Rf5 Qaf3 Ra8 Qde3 Rb8 Be1 Rd3 Nf6 Rb7 Qd4 Rc7 Nc1 Rc6 Kb1 c2+ Ka2 c3 Kb3 Nh1 Qh3 Ng3 Na2 c1B Bg4 Rf4 Be6 Rf5 Bg8 Bcf4 Nc1 c2+ Bc3 Be5 Qdg4 Bef4 Qd1 b1Q+ Ka3 Be5 Ba2 Rd5 Be1 Bb2+ Kb3 Rd4 Ra7 Rd3+ Bc3 Qe8 Rg7 Qd7 Nf3 g1B Rg2 Bh2 Ng1 Ne2 Rg5 Ng3 Nce2 Rdd5 Ba5 c1N+ Kb4 Nd3+ Kb3 Ne1 Nc1 Kb8 Bc3 Qe4 Ba5 Qf7 d7 Rcd6 d8N Qd7 Nc6+ Kc8 Qhg4 Rd4 Qh3 Rd3+ Bc3 Rfd5 Ng4 Qde6 Rb7 R3d4 Ba5 Rd3+ Bhc3 Qe8 Nf6+ Rf5 Rf7 Qd7 Rg7 Ba4+
1n2r3/BQ3K1k/p1q3nr/R1p1BpQ1/N5Rb/1RqNr3/2q2RB1/1br2n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 Kf7 d4 Kg7 g4 a6 b4 f3 e4 h3 d5 h4 d6 h2 d7 a3 Ke6 f2 b5 h3 e5 a2 b6 c3 g5 c2 g6 Rh7 b7 Rh8 Nf3 Qh4 Nc3 Qh7 Qd5 Qh4 Ne1 Qg3 Bb2 c1R Na4 Qd3 Bg2 Qc2 Rf1 h1Q Nd3 h2 Qc6 Kh6 g7 Ne7 g8R Kh7 Kf7 Ng6 d8Q Be7 e6 Bh4 e7 Ra7 Be5 Be6+ Ke8 Bc4 Qcb6 Bb5+ Kf7 Bc6 e8R Be4 Qg5 Ra8 Rb1 a1Q Rb5 Qac3 Ra5 Re1 Qb4 Re3 Rb1 f1N Rb3 Nd7 Re6 Re8 Rb6 Nb8 Rb2 Qd1 Rf2 Qdc2 Qb2 Re6 Rb3 Re8 Bh3 Qf3 Bg2 h1R Qb1 Nc6 b8B Rg1 Ba7 Nb8 Nb4 Bd3 Qb2 Qc6 Qb1 Qd1 Qb2 Bb1 Nd3 Qdc2 Qf4 Ne7 Rg4 Ng6 Qg5 Nd2 Qa3 Rc1 Qb4 Nf1 Qb5 Re6 Qb7 Rhe8 Bf4 Ne7 Bh2 Rh6 Be5 Ng6
B1bq1N1k/Bn2n3/pQ2Brp1/R1qN4/4Qb1b/2R3R1/1p3n2/r1Bb2Kr w - - 0 1 illegal: No proof kernel
1Kb2Rq1/B5p1/rr1nQ2b/k1qN1R2/Bb1Rr3/BQp5/1qp4r/3NnB2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kc6 a4 Kb6 h4 c5 e4 f5 d5 f3 Kg3 f4+ Kf2 b3 d6 c3 e5 c2 e6 b2 d7 c4 h5 Bb4 h6 Ra6 e7 Nc6 e8B Ne5 h7 Nh6 Qd3 Nf5 Rh4 Nd6 Nc3 b1R Ba3 Ka5 Nh3 b5 Nd1 c3 Qd5 Qe7 d8B+ Qc7 Qb3 g3+ Ke1 f2+ Ke2 f3+ Ke3 g2 Kd4 g1B Kd5 Bh2 Rd4 Nd3 Nf4 Ne1 Bd7 Re8 h8R Re4 Rf8 Rb2 Bf6 Bg3 Be5 Qc5+ Ke6 Rb1 Nd5 Bf4 Ke7 Bc1 Kd8 Bh6 Bc6 Rb2 Kc7 Rb1 Kb8 Rb2 Bd3 f1R Bh2 Rb1 Bg1 Rf2 Bf1 Rh2 Qa2 f2 Bc4 f1Q Nf2 Nd3 Nf4 Ra7 Bb2 Kb6 Rd5 Ba3 a5+ Ka6 Nd1 Qd4 Rdf5 Ne1 Bf2 Qg1 Bf1 Qg6 Qe6 Qh7 Nd5 Qg8 Bd7 Bc5 Ra4 Ba3 Rc4 b4 Bc1 b3 Rb4+ Qd3 Bb6 Qb5 Rd4 b2 Be8 Qc4 Bc5 Rd7 Bb6 Kb5 a6 Ra1 a7 b1Q a8Q Bb4 Qa3 Qb3 Qb2 Ra6 Ba7 Ka5 Qb1 Qc5 Ba3 Rc7 Qa2 Qb2 Ba4 Rcc6 Qb3 Rcb6+
RRQq3k/KbR1n1pp/nB2pq2/4r2N/q1N5/b1Qr1B1n/r3n2N/5N2 w - - 0 1 illegal: No proof kernel
NnQ1K3/1R2p3/3kB2r/n3qp1B/R3n3/bbp1Q1q1/Q2Bb1Nq/qr1Q4 w - - 0 1 illegal: No proof kernel
Q3q1B1/Bb1p2BQ/3b4/5BbR/KN3n1q/2p1QN2/q1p1nr2/1nrknR2 w - - 0 1 illegal: No proof kernel
RN2nn1b/rk1p3b/3B4/R1b2p2/4qrQK/npbR4/2BQNN2/3qr2N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 h4 b3 c4 d3 e4 d2 h5 f3 Kg3 f2 e5 b2 c5 b4 a5 b3 c6 Bb7 a6 Bb4 e6 Nf6 h6 Rf8 h7 Ra7 h8Q Qe7 c7 Nh7 c8N Kd8 Qf6 Kc7 Nc3 b1N Bd3 f1R Nd6 Re1 Qg7 Na3 Nh3 Be4 Ne2 Bc3 Nf5 f6 Qc2 d1Q Qd2 Rf7 Ra2 Nf8 Bc2 Qe8 e7 Bd3 Ne3 Bh7 Nf1 Kb6 Nf2 Kc6 Kh2 g3+ Kh3 g2 Nfg3 g4+ Kh4 g1B Rh3 Bh2 Ngh1 g3 Qg4 g2 Bb2 g1B Rd3 Bd6 Bc1 Bc5 Ra1 Bh2 Bb2 Bhe5 Ra2 Rb7 a7 Na6 a8R Nc7 Ra5 Qa8 e8N Ra7 Ra1 Kb7 Bc1 Ncb5 Nc7 Nd6 Na6 Ne8 Ra2 f5 Bb2 Bh8 Nb8 Re7 Bc1 Re4 Ra1 Nb1 Ba3 Rf4 Bb4 Na3 Ra2 Bb6 Be7 Bc5 Bd6 Kb6 Ra1 Qe4 Ra2 Rb7 Ra8 Ra7 Ra1 Kb7 Ra2 Nb1 Ra5 Na3
3n1Rr1/Nbrp4/3pN1b1/5pb1/1Qqq2BB/3n2K1/3r1NRQ/1Q1Nkr1n w - - 0 1 illegal: No possible last move
qR1Nq3/RQQp2pB/4N3/bq2Q1Kb/1B2R2R/1kr1q2p/2nn3r/5b1n w - - 0 1 illegal: No proof kernel
q3QbNn/k1rpp2Q/3b2B1/2r1R2n/2pn1N1B/BBr1bq2/R7/2K3Nb w - - 0 1 illegal: No possible last move
Rnb3k1/2p1q3/R1B5/1bK4N/rpNB1nN1/Q3qQpq/3nrb1B/5qN1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 h4 g5 d4 f5 e4 Kf7 a4 f3 Ke3 f2 e5 g3 h5 b3 d5 b2 Kd4 c3 d6 g4 h6 f4 h7 g2 e6+ Kg7 e7 b4 e8N+ Kf7 a5 c2 a6 f3 a7 Qg5 d7 Qe7 Nd2 b1N Bb5 f1Q Nc4 f2 Rh6 Nd2 Ng7 Nf6 Bc6 Nh5 Qf3+ Nf4 Nh5 Rg8 Bb2 c1Q h8B Qb1 Bf6 Qf5 Be5 Bg7 Rg6 Re8 d8N+ Kg8 Nf7 Qfe6 Rh6 Bf6 Qa3 Bh4 Bd6 Qf5 Nfe5 Q5d3+ Kc5 Qh3 Bd4 Bg3 Ne2 g1Q Qf3 Bh4 Ra4 Qgg3 Qa3 Qe3 Ng1 Qd1 Rf6 f1B Ra6 Bf2 Rf8+ Kh7 Rg8 Be2 Rf8 Qdf1 Ng6 Be6 Nb2 Qb3 Ra4 Nd3+ Kb5 Qeh4 Qa2 Na6 Bh2 g3 Ne5 Qc3 Ng4 Nf4+ Qc4 Bf5 Qd3 Re3 Rb8 Qe7 Rb6 Kg8 Ra1 Rb8 a8Q Bc8 Qa7 Ra8 Ra5 Bd1 Qe2 Bb3 Nc4 Nb8 Qf3 Re2 Ra1 Qce3 Qa2 Qe8 Kc5 Ba4 Qb2 Bb5 Ra4 Ra7 Qa3 Rb7 Ra8 Ra7 Qa6 Qd7 Qa3 Ra4 Rba6 Qde7+
qnK3rq/2p2kNN/4qrpr/7R/5Q1n/2R2b1n/1p1RNb2/NBQ1B1q1 w - - 0 1 illegal: No possible last move
B4R2/1ppb2N1/2Br1N1q/1nR1pr2/1r2bB1k/1nB1b3/K2Qqn2/3Q1bR1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc2+ e3 Kb2 h5 a4 e5 f3 h3 d5 h4 a5 c3+ Kb3 h2 d6 h3 d7 c2 f4+ Kh4 f5 e2 g5 e1Q a6 Bh6 a7 Qf8 d8Q Nf6 g6 Bd7 g7 Qe2 g8R Nc6 Ra5 Be3 Ka2 Qh6 Bg2 Nd4 Rc5 Nb5 Nc3 Rb8 Re8 Rf8 a8B Rc8 Bc6 b3+ Ka1 b2+ Ka2 b1R Nd5 Rf7 Rf8 Rb4 Bd2 Rb8 Bc3 c1N+ Ka1 Qe1 Ne2 Nb3+ Ka2 Rc8 Nef4 Qe2+ Qd2 Rb8 Ra1 h1B Nh5 h2 Ng7 Bg2 Rf1 h1B Rg1 Bc8 Qd6 Ne4 f6 Nf2 Qd8 Bg4 Qd6 Rd7 f7 Bf1 Nf6 Be4 Qd3 Rdd4 Qb1 Bd7 Qd1 Na5 Rg8 Rd3 f8B Nb3 Be7 Rd6 Rf8 Kh3 Nfe8 Rd8 Bg5 Rb8 Bf4 Kh4 Nf6 Re8 Rd5 Re7 Rc5 Rf7 Nfe8 Rf5 Nf6 Qg5 Kb2 Qgh5 Ka2 Qh6
3N2K1/p3BR1q/2nrR2q/1bb2pbk/2B3rb/B5pn/1N2QB1Q/1Qqr4 w - - 0 1 illegal: No possible last move
rbbb1N2/3R3q/2brK3/NR6/bR1Q4/2Q1B1k1/pp4p1/rRNBn1bn w - - 0 1 illegal: No proof kernel
2n3QQ/kr1R1q1b/Bb2bN2/5nKr/rR3p2/R1Qb4/2pBb1p1/1RN4b w - - 0 1 illegal: No proof kernel
3Kbn2/bNn1p2B/1p6/3bQ1b1/1r3bNp/1RB4b/r1BqNQR1/1n2N2k w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 h3 Ke3 Kd7 Kf4 Kd6 Kg5 Ke5 a4 h5 g4 c5 a5 h2 a6 h4 a7 b3 Bd3 b2 Ra2 e3 Nc3 b1B Bb2 e2 Kg6 Kf4 Kf7 e1N g5 Bg7 g6 Nf3 Qe2 Bd4 g7 Bh3 Bh7 Nf6 g8N Nd5 Nh6 Nc7 Ng4 Nd7 d3 Rb8 a8B Nd2 Nf3 Be3 Rd1 h1B d4 Be4 d5 Nb1 d6 Bc6 Ne1 Bhf3 Nb5 c3 Rd3 c2 Rb3 c1B Nd4 c4 Bc3 Bfe4 f3 Kg3 f4 Bg1 f5 Bg5 f6 Beg2 Nf2 Kh2 Ng4+ Kh1 Qe5 Bgf3 Rg2 B1e3 Bb2 c3 Ne2 c2 Bc3 c1B Bc2 Rh6 Bh7 Ba7 Bc2 Nf8 Bh7 Ng6 d7 Ne8 Ke6 Bcd2 f7 Nc7+ Kf5 Ba4 f8Q Bac6 Qf7 Nf8 Qff6 Ba4 Qb6 Bdf4 Qf2 Qe8 d8N Ra6 Nc6 Qd8 Na5 Nfe6 Kg6 Nf8+ Kf7 Qd2 Bc2 Rd8 Bh7 b6 Bae4 Rd4 Bc2 Rb4 Nb7 Bd5+ Qe6 Nb5 Ke8 Nc7+ Kd8 Be8 Qe5 Ra2
rb3rkN/p1q1K3/N4r2/Bb1bn1bb/pR2R2N/3np1B1/QB1bQ1B1/8 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 f4 e5 h4 d5 b4 g5 c4 d3+ Ke3 d2 h5 g3 h6 g4 b5 g2 b6 g3 c5 Bb7 f5 Bd6 f6 Ne7 h7 Qc7 c6 Ng6 Qe2 d1B Rh4 Nf4 Nf3 g1R Nc3 g2 Nb5 Rf8 h8N+ Kg8 Rb1 Nd3 Rb4 Nd7 Bb2 Rh1 Rf4 Rh6 Nh4 Ba6 b7 Bb3 b8B g1B+ Qf2 Be7 Bg2 Bh2 Qe2 Ba2 Nd6 Bd8 Nb7 Bb5 Nc5 Rg6 Na6 d4+ Kd2 Bd5 f7+ Kh7 Rg4 e3+ Kc2 Bg5 Re4 Rd8 f8B Kg8 Bc5 Rf6 Bb6 Rdf8 Ba5 Bg3 Qf3 e2 Qf1 e1B Qe2 Qd8 c7 Bed2 c8Q B3f4 Qc4 Qc7 Kb1 Bh2 Ka2 Bg3 Ka3 Bh2 Rf4 e4 Qa2 e3 Rg4 N7e5 Re4 Ne1 Rf4 d3 Rbe4 Bc1 Kb4 d2 Rg4 d1B Rgf4 Qf7 Kc5 Bd2 Rb4 Qh7 Rfe4 Bg3 Qf2 Bh5 Qe2 Rf1 Kd6 N1d3 Nf7 Rf6+ Ke7 Qf5 Nh8 Qc8 Rbd4 Nf7 Bf4 Nfe5 Rb4 Bh2 Bg3 Qc6 Nc5 Qc7+ Nd7 Ng4 Bf2 Qc6 Nc5 Bb8 Na6 Nge5 Bg3 Qc7+
B3Q3/pb2rn1B/Q1Q4b/p1rb1K2/5p1b/R1R1b1BN/1q4n1/1BNkrb2 w - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 cxd4 a5 e5 a6 exf4 Nf3 bxa6 Ng1 a5 Kf2 Ke7 c4 Kd6 b4 Ke5 h4 Ke4 b5 g5 b6 d5 h5 f5 c5 d3 c6 d4 h6 d2 e3 f3 Kg3 f4+ Kh2 d3 c7 f2 h7 g3+ Kg2 g4 b7 Bh6 Rh3 Qf6 Qe2 d1R Bd2 Nd7 b8Q Ne7 Qb6 Nf5 Be1 d2 Qea6 Qb2 Ra3 Bb7 c8B Re8 h8Q Re7 Qe8 Ne5 Rc3 Bd5 Bb7 Nf7 Qbc6 Rc8 Ba8 Rc1 Bc4 d1B Ba2 Be2 Ra3 Bb5 Nc3+ Kd3+ e4 Kc2 Nce2+ Kd1 Bb1 f1B+ Kh1 g2+ Kh2 Rc5 e5 Nh4 Rhc3 g3+ Kh3 Bd3 Kg4 B3e4 Nh3 g1B e6 g2 Nc1 Be3 Bf2 g1B Bg3 Beg2 Bh7 Bgf2 Bb1 Bh1 Bh7 Ng2 Kf5 Rb7 e7 Be1 Bh2 Bh4 Bg3 Rcb8 Qd8 Rd7 e8B Re7 Bd7 Rb4 Qe8 Rbe4 Be6 Ne5 Beg8 Nf7 Bg6 Bd4 B8h7 Re1 Kg4 Bg1 Bb1 Be3 Kf5 Be6+ Kg6 Bc8 Ne2 Bb7 Bd3 Bf2 Bb1 Ne3 Nc1 Bd5 Qd6 Ng2 Kf5 Bg1 Qdc6 Be3
r4bn1/1b1Bb1B1/nRbQ4/K1r4n/2p2Q1p/Q3Rp2/5Nkn/qbB1B2N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Ke6 e4 Ke5 d3 f5 Kd2 c5 Kc3 a5 b5 h5 g5 f3 g6 a3 g7 h3 b6 f4 b7 a2 Be3 h4 Qa4 f2 Qa3 h2 Ne2 a4 Nd2 Bf5 Rb1 a1N Ng3 Rh5 Rb6 Nb3 Bh3 Qf6 Re1 f1B Nh1 Na6 Re2 Bg6 Bd7 Nd4 Re1 Nf3 b8B+ Nc7 Ba7 Na6 Bf2 Rg5 Re3 Be2 Be1 Bf1 Qa1 a3 Qc1 a2 Qa3 Ne7 g8Q a1B+ Rb2 Bf5 Qf7 Ng8 Bb6 Qg7 Bd8 Rh5 Bg5 Qh8 Bh6 Qf6 Bg7 Be7 Kc2 c3 Kb3 c2 Ka4 c1N Rb6 Ne2 Ka5 Ng3 Qg6 Kd4 e5 Rg5 e6 Nh5 Ne4 Bc3+ Ka4 Bb4 Nef2 Kd5 d4 Bb1 Qh6 Bf8 e7 Bb5+ Kb3 Re5 e8Q Rf5 Qd8 c4+ Kb2 Bbe7 Kc3 Nc5 Kb4 Na6+ Ka5 Rg5 Ng3 h1B Qc7 Bg2 Ngh1 Nh2 Qg6 Bge4 Qb8 f3 Qf4 Rf5 Bc6+ Ke6 Qgg3 Rc5 d5+ Kf7 d6 Ke6 d7 Qa1 Qd6+ Kf5 d8B Bd5 Qh3+ Kg5 Bd7 Bdc6 Qhe6 Bb7 Qd2 Kf4 Qc6 Bd6 Bdf6 Bde7 Bb2 Bg6 Bc1 Bf5 Nd3+ Kg4 Qh6 Kh3 Ndf2+ Kg2 Qf4 Bb1 Qdd6 B5c6+
2Q1rNr1/Q1r5/1r4R1/p3R1nn/knKQ1BpQ/3p3n/1rb2b1q/N1B4B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 c4 a5 b4 d5 e4 Kd7 h4 Kc6 c5 Kb5 e5 a3 e6 g3 h5 f3 h6 g2 c6 a2 c7 g4 h7 f4 e7 f2 e8Q+ Nc6 Qc2 f3 Qg6 Qh4 Qg7 Bf5+ Kd2+ d3 Kc3 d4+ Kb3 Bc5 c8Q Nh6 Be2 f1N Qa7 f2 Bf3 d2 Be4 d1R Qd2 Rg8 h8Q Ng3 Nh3 g1N Nf4 f1R Ng6 Nf7 Nf8 Qh2 Qh4 Ng5 Qe3 Rde1 Nd2 Nh5 Rb1 a1R Rb2 d3 Qd4 Ra2 Kc3 Rg6 Nb3 Be6 Na1 Rf7 Re2 Ka4 b5+ Nb4 b6 Rb2 b7 N1h3 b8B Bb3 Bbf4 Bc2 Kc4 Rc7 Bg2 Rb8 Re5 Rg8 Rf1 Re4 Bh1 Rb6 Re1 Re3 Re6 Re4 Rg6 Ree6 Re5 Re8 Qd5 Bf2+ Qc5 Rcb7 Qd4 Rc7+
3R1nkb/r2Q1nB1/6pq/1QN5/r3r2r/N1p1r1B1/Bbp1Q1Qb/1b1R3K w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 a4 Kf7 h4 c5 f4 e5 Kf2 b5 Kg2 g3 d4 g6 h5 b3 h6 b4 a5 e3 f5 e4 a6 e2 a7 e1B f6 b2 h7 b3 d5 e3 d6 e2 d7 Bg7 Qc2 Nh6 Rh5 Qf8 d8Q Bc3 Rh2 e1R Ra3 Bf5 Ra1 Nd7 Na3 b1R Nb5 b2 Nh3 Bd3 Kh1 Re4 Bf4 Rbe1 Rd1 b1R Nf2 Rb4 Na3 Ra4 Qd2 Bb1 Nd3 Bd4 Rh5 Ba1 Rd5 Bb2 Qb4 R1e2 Qb5 g2+ Kg1 c3 Bg3 c2 Qc7 Rg8 h8Q c4 Kh2 g1B+ Kh1 Nf5 Qh5 c3 Bh3 Nd6 Be6+ Ke8 Qg4 Bh2 f7+ Ke7 Rd4 Rh8 Ba2 Rh4 Qgh5 Qh8 f8B+ Kf6 Qc8 Qh6 Qcb7 Bh8 Bg7+ Ke7 Rd5 Kf7 Qg4 R2e3 Qe2 Kg8 Qc7 Nf8 Rd4+ Nf7 Rd8 Rc8 a8Q Reg4 Qag2 Rca8 Nc5 R8a7 Qcd7 Rge4
1rK5/N2r4/Q1B1pnN1/pb3bkb/Rq1qRp2/bNQ3b1/3bn1BB/6B1 w - - 0 1 illegal: No proof kernel
Q1b4b/3r4/1R1pnpBK/B4r1R/nrrn1QRp/q3RQ2/1k1N4/n3r2N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kh5 Kc4 g4 b5 a4 d6 e4+ d3 g5 h3 e5 h2 e6 f6 e7 b3 e8Q f3 a5 b2 c3 f2 g6 b4 g7 b3 a6 Ra7 Qe3 Nh6 g8R Rd7 a7 Qa5+ Qe5 Nf7 a8Q Nc6 Qg4+ Nd4 Ra2 Bg7 Bh6 Qa3 Qgg2 Ng5 Qge4 Ne6 Ne2 d2 Qf3 d1N Qef4 Ne3 Nd2+ Kd3 c4 Kc2 Ra1 b1N c5 b2 c6 Nc3 c7 b1R Ng3 Na4 Bd3+ Kb2 Bg6 Nec2 Re1 f1R Re3 Rf2 Nh1 Re1 Rc1 Na1 Rc5 Rc1 Rc6 Rc4 Rb6+ Rb4 Bg5 Rf1 Bh4 Rc1 Be1 Rc4 Re8 Rg8 Re7 Bh8 Rg7 Re8 Kh6 Ree7 Bh5 Re8 Rg4 Rg8 Bf7 Rg5 Bh5 Rf5 Bg6 Bb7 c8R Ba6 Rc5 Bc8 Nf2 h1R+ Rh4 Rg1 Rg4 Rf1 Nh1 Rg1 Nb1 Rf1 Bd2 Re1 Rce5 Rb3 Ba5 Rbb4 Nd2 Rg5 Rc5 Re5 Rd5 Nf5+ Kh5 Nfd4+ Bf5 h6 Kg6 h5 Kh6 h4 Bg6 Re4 Rdg5 Re5 Rh5 Rf5
BB1b3Q/2n4b/1Q1prpr1/1Q6/NNqBp1k1/2bB3R/1K2br1R/2nr2b1 w - - 0 1 illegal: No proof kernel
Bbr1N3/1b1N3n/p2N4/R2n2nK/1pR1Q1QN/1k1r4/1p2n2B/1nq1Qrr1 w - - 0 1 illegal: No proof kernel
1nBnRb2/1Kbb4/p1pb1QQ1/4qr2/rNN3N1/pqNB2Bk/3R1b2/7b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 h4 Ke6 e4 g5 d4 f5 b4 a3 e5 g3+ Kf3 g2 h5 a6 b5 c3 b6 c2 h6 Ne7 h7 Qe8 b7 Bd7 Nd2 Ra7 Ra2 Nec6 Ne2 g1B Nc3 Bh2 Nc4 Nd8 Qd3 Bg3 Bd2 c1B Be1 Bh2 Rd2 g4+ Kf2 g3+ Kf3 g2 Bg3 Rg8 h8N g1B Nf7 Rg4 Nh6 Bf2 Qe4 Qe7 Bd3 Qb4 Re1 Qb3 Re3 Rh4 Ng4 Bb2 Nd5 Bc3 Re1 Bcb4 Nc3 Bbd6 d5+ Kf7 e6+ Kg6 e7 Kh5 e8B+ Kg5 Kg2 f3+ Kh1 f4 Bh5 Nbc6 b8N Rb7 Qh7 Rb5 Re8 Ra5 Qe4 Ra4 Bf7 Rh7 Be6 Rf7 Qh7 Rf5 Qf7 Be1 Qh7 f2 Kg2 f1B+ Kf3 Bf2 Ke4 f3 Qf7 Bg2 Qh7 Na5 Nc6 Bh1 Nb4 Nac6 Qf7 Nb8 Qh7 Bb5 Bc8 Bd7 Qf7 Bfg1 Qe6 f2+ Kd4 c6 Qe4 Bf4 d6 Be5+ Kc5 f1Q+ Rf2 Bf4+ Kb6 Qa1 Kc7 Kh5 Rd2 Bf2 Qe6 Nf7 Kb7 Be5 Bf4 Kh4 Qg6 Kh3 Bg3 Bf4 Nb5 Qe5 Nc3 Be6 d7 Nd8+ Ka8 Nb7 d8Q Bd7 Qdf6 Nd8 Bb1 Qe7 Bd3 Bc7 Bh4 Bhd6 Bg3 Nf7 Kb7 Qe2 Nb5 Qe5 Nc3 Nd8+
2Kb2rk/2R1Q1pq/R1b3R1/nn2p2N/2bQQb1Q/2Nbqp2/5br1/3BB3 w - - 0 1 illegal: No proof kernel
B1n1bQ1Q/k1N2p2/1R2p3/1R1Rb1r1/qp3r1B/2nQb3/br1bR1r1/2K2N2 w - - 0 1 illegal: No possible last move, all moves rejected
1kB1rrBn/4p1qN/nbR1B2B/3pp1Q1/bb2rb2/1rNr1RK1/3Q4/3Q4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 d5 f6 e5 fxe5 d6 cxd6 Qd2 d5 Qd1 d4 a4 g5 f4 b5 Kf2 d5 c4 Kd7 h4 Kc7 c5 b3 c6 g3+ Kg2 b2 h5 g4 f5 d3 f6 d2 f7 b4 h6 b3 a5 Bd7 h7 Bh6 f8Q Be3 a6 Nh6 a7 Na6 Be2 Nf7 Qh6 Re8 Nc3 b1R h8Q b2 Qg8 Nh8 Qgg5 Bc5 Ra5 Bb4 Ra3 Ra1 Bf1 b1R Nh3 Rb3 Bd3 Kc8 c7 Ba4 Bh7 Qd7 Qf1 d1R Bg8 Rd3 Qd1 Qf5 Rf1 Qf8 Rf6 Qg7 Rc6 Rb8 a8B Rf8 Kh1 g2+ Kh2 g1B+ Kg2 Be3 Kg3 Re8 Bd2 Ra2 Bc1 Re2 Bb7+ Kd7 c8B+ Kd8 Kh4 g3 Bce6 g2 Kg3 g1B Bbc8 Rf8 Nf4 Ra8 Nh5 Re1 Nf6 Rb8 Rb6 Kc7 Nh7 Ra8 Rc6+ Kb8 Ra2 Re8 Rf2 Bb6+ Rf3 Re4 Bf4 Bge3 Qh2 Ra7 Qa2 Rd7 Qad2 Rdd8 Qg4 Rf8 Bh6 Rde8 Qg5 Bf4+
Q4q1k/NRpn2q1/1r2R3/1K2p3/R2N1br1/bR1B3b/n1pb1bQ1/1b2Q1B1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 d4 e5 a4 g5 f4 Kg7 h4 b5 d5 c3 d6 g3 f5 g4 h5 g2 a5 c2 d7 e3 Kd3 e2 a6 e1B a7 b3 Ra4 b4 Kc4 g3 Qd5 b2 Ne2 g1B Na3 b1Q Kb5 g2 Rh3 b3 Be3 b2 Nd4 Na6 Bd3 Rh6 f6+ Kh8 f7 Bh2 Bg1 Bd2 Qe4 Qg5 d8Q Qg7 Qdh4 Nf6 Qhe1 Nb4 Qc6 Rg6 h6 Rg4 h7 Nd7 Qb7 Rb8 a8Q Bg3 Rh6 Na2 Re6 Nb6 Qc6 Bgf4 Qd5 Bc5 Qdb7 Nd7 f8R+ Qg8 Rfe8 Qf8 Rb6 Qd1 Ree6 b1B Qbe4 Qf3 Rb7 Qg3 Qc6 Kg7 h8R Be7 Nc4 Ba3 Rh3 Kg8 Na5 Kg7 Bh2 g1B Qg2 Bf2 Nac6 Kg8 Bg1 Kg7 Bh7 Kh8 Na7 Qh2 Re3 Qhh6 Rb3 Qhg7 Bd3 Qgg8 Kc4 Qgg7 R7b4 Rb6 Rb5 Ra6 Rb7 Rb6 Re8 Rgg6 Bf1 Nc5 Bd3 Bh3 Re7 Nd7 Re6 Rc6+ Kb5 Rg4 Ra5 Ra6 Ra4 Rb6+
R3q2n/3Q1rRB/bB1Qb1n1/5nbn/Q5pk/RR1rN3/N2pprr1/3K4 w - - 0 1 illegal: No possible last move, all moves rejected
r1Rn1q1N/5r2/1KN2NNp/2Q2b2/5b2/2n2Rbp/1rnpQQBB/bk2n3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 a4 Kf5 f4 d5 c5 b5 g3 e5 c6 h6 a5 b3 c7 h3 a6 e3 Kd3 e2 a7 e1B Be3 b4 Bg2 b2 Rh2 e4+ Kc2 d3+ Kb3 d2 Ka4 d4 Ka5 b3 Nc3 b1N Bf2 d3 Nd5 b2 Ne2 e3 Nb4 Nd7 Bg1 Ne7 Ra3 Rh7 Nc6 Ne5 Kb6 Nf3 g4+ Ke4 f5 Rf7 f6 Bf5 g5 Nc3 g6 Bg3 g7 Bf4 g8N b1R+ Rb3 Qe8 c8Q Rb2 Qe1 d1N Qf2 Bg7 Rh1 d2 Bh2 Bg5 Nf4 e2 Ng6 Kd3 Nh8 Ne3 Rc1 e1B Rc2 Bf4 Qe6 Rc8 a8Q Qf8 Qa3 Ra8 Rc1 Nc2 Qac5 Ng6 Qe8 Nge5 Qee7 Ng5 Qe8 Ne6 Qee7 Nf3 Qe8 Rfa7 f7 Nd8 Nf6 Rd7 Qg1 Beg3 Qgf2 Nfe1 Qee7 Qe8 f8N Rc7 Qee5 Rf7 Nfg6 Qf8 Rd1 Nd4 Qee2+ Kc2 Ra1 Be5 Ra7 Bef4 Rc7 Kb1 Rc8 Ndc2 Qee5 Nb5 Rf3 Rb3 Ne8 Bf6 Qee2 Ba1 Nf6 Rb2 Qef1 Nc3+ Qfb5 Nb4 Qbe2 Nbc2+
N2R1nqk/bQ6/npNBQ3/pR2NpQ1/2b2QB1/n1r3n1/4bK1r/2r3b1 w - - 0 1 illegal: No possible last move, all moves rejected
1r6/5kb1/pnr5/B2Nnrbb/BqbQ2RK/rpNB1Q1n/4R2p/3N3N w - - 0 1 illegal: No proof kernel
6NR/4np2/1k4nr/bBnbR3/qp1n2b1/QN4B1/r1pKb1BQ/1N3Nr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 g4 Kc6 d4 b5 e4 h5 e5 c3 g5 h3 e6 h4 d5+ Kb6 e7 c5 e8B c2 g6 f3 d6 h2 d7 c4 g7 f2+ Ke2 b3 Qd2 h3 Qf4 c3 Qf6+ Nc6 Qe6 b2 Qc4 Qh4 d8N Nce7 Qd5 Bg4+ Kd3 Ng6 Qh5 Rh6 Nc6 N8e7 Bg2 f1B+ Ne2 Ra6 Bf4 c1N+ Ke3 c2 g8N Nd3 Kd2 Nc5 Ng3 Bfe2 Nd4 Ra5 Re1 h1R Nb3 h2 Nf1 Rg1 Bg3 h1B Bd7 Bg7 Bdc6 Be5 Ra2 Bc7 Qe5 b4 Bb5 Qf6 Qh5 Qc6 Qh2 Bd3 Re5 Bde2 Bh3 Bd5 Bg2 Ra7 a5+ Kb7 a6+ Kb6 Nc3 Ra8 a7 b1N+ Ke3 Na3 Nb1 Qd7 Kd2 Bd8 Ba6 Qa4 Bb5 Rc8 a8Q Rc7 Bc6 Nb5 Bd7 Nd4 Bb5 Bde6 Qf3 Bd5 Qc3 Rd7 Qb2 Rc7 Qa3 Ra7 Qb2 Qa6 Nf6 Kb7 Qc1 Ra8 Ra4 Qa7 Ra6 Bc7 Rc6 Bb6 Rc8 Qa2 Rf8 Ra4 Rd8 Ba5 Rh8 Kb6 Ng8 Qa3 Na1 Qb3 Qb2 Ra2 Qa3 Qa4 Nb3 Rh3 Bc4 Rh5 Bb5 Rh6
BNN1nQNb/2p3R1/p5p1/BB1bn3/qr3K1n/2Q4r/1r2bb1B/k2r1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 d4 Kd6 h4 Kd5 b4 f5 h5 g3+ Kf3 a6 b5 a3 e3 c3 h6 g2 h7 a2 b6 c2 b7 g6 Qe1 Nc6 b8N Be6 Nd2 Qe8 Bb5 Nf6 Nh3 Bc5 Nf2 g1R Rh3 Rg4 Nde4 Qd7 Rh5 Ne8 Bd2 c1R Nd6 Rd1 Ba5 Rh4 Rc1 a1B Nfe4 Bb6 Nc8 Ne5+ Kf2 f3 Kg3 f2 Qc3 Rh2 Kf4 f1N Rb1 Rb2 Rh6 Rg8 h8B Nh2 Rh7 Nhf3 Rg7 Nh4 Rc1 Ra7 Rb1 Rb7 Rc1 Bf7 Nf6+ Ke6 e4 Qc6 Bd3 Qa4 Bb5 Bc5 Bc6 R7b4 Ba8 Rf8 Ng8 Bb6 Kg5 f4 Rb1 f3 Kf4 f2 Rc1 Nc6 e5 Kd5 e6 f1B e7 Be2 Rb1 Rd3 Rf1 Rd1 Qa3 Kc4 d5 Bg1 d6 Ne5 d7 Bf2 Qf3 Kd4 d8Q+ Kc4 Qc6+ Kb3+ Qc4+ Ka3 Qcd4 Ka2 Qd6 Nf6 e8B Bd5 Bb5 Rd8 Qf8 Ne8 Rh7 Kb1 Bf6 Rd6 Rg7 Rc6 Be7 Rc3 Bc5 Rh3 Bd6 Rc2 Qc4 Bad4 Qb3+ Ka1 Qc3+ Rcb2 Kg5 Nc4 Bh2 Ne5 Kf4 Nc4 Rf7 Bh8 Rg7 Ne5+
1R2Q1QN/p1n1r1n1/2p1Q2B/5Nrr/1KbnN3/1B2p1qb/6r1/bkN2R1b w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kd7 Kd2 Ke6 Kc3 Kf5 b4 h5 f4 e5 b5 e3 g4+ Ke4 b6 a3 d5 h3 g5 e2 d6 e1R g6 h4 f5 h2 f6 c6 b7 a2 g7 h3 d7 Nh6 g8Q Nf5 f7 Bg7 f8Q Rh5 Qdd6 Na6 b8N Qg5 d8N Nc7 Bf4 Qg3+ Kb4 c3 Bc4 c2 Qh8 c1N Bb3 Ne2 Ka5 Ned4 Nd2+ Kd3 Nc4 e4 Rb1 a1R+ Kb4 Ra2 Nd7 Rg2 Nf6 e3 Ne2 Reg1 Qhg8 Bh8 Ba4 Ng7 Bb3 Bf5 Nf7 Re8 Qd5 Re7 Ncd6 Be6 Qe5 Bc4 Bh6 Kd2 Nf5 Kd3 Ba2 Kc2 Rf1 Kb2 Nc1 Ka1 Bb3 Kb1 Rf4 Rd1 Rg1 h1B Rgf1 h2 Qe6 Rdd2 R4f3 Ra2 Ne4 Ra5 Qe8 Re5 N5d6 Reg5 Rf4 Rd2 Rf5 Bg2 Rb5 h1B Nf5 Bh3 Rb8 Rg2 Q8d7 Nge8 Qd8 Be5 Nh8 Ng7 Qdc8 Ndb5 Qcd8 Ba1 Qde8 Nd4
1n5r/R1q2n2/2Q4r/2Kq4/1Qb1r1BB/1q2p1N1/Rbp2R1p/2krRqBN w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Ke6 a4 Ke5 g4 h5 d3 b5 a5 c5 g5 h3 g6 h2 g7 b3 a6 b2 f3 b4 a7 b3 Qe2 h4 Bh3 c3 Ra3 c2 Qf1 c4 Qd1 c3 Ne2 Ba6 Bg4 h3 Qe1 Qd5 Nd2 b1R Ra2 b2 Nf1 Nh6 g8R Bg7 Nfg3 Nf7 Rg1 e6 Nh1 Bc4 Neg3 Rh6 Re8 Ra1 Re7 b1Q Ba3 Qbb5 Bc5 c1Q+ Qd2 c2 Re1 Qb3 Rd7 Qca3 Qb4 Qa5 Re7 Rd1 f4+ Kf6 f5 Ke5 f6 Qc7 Ke2 Kf4 Bg1 e5 Rd7 Ng5 f7 e3 f8R+ Nf7 Re7 e4 Rd7 Nc6 Re7 Rc8 a8Q Nb8 Qc6 Bb2 Rd7 Qcd6 Rda7 Qc7 Kf1 e2+ Kf2 Rd8 d4 Rc8 Rf1 e1R Re8 Qde5 d5 Re3 d6 Qd5 Re6 Rch8 d7 Ree1 d8B Re3 Bh4 Ree1 Nf5 Re3 Nhg3 h1Q Rf6 h2 Re1 Ke5 Ng7 Kd4 N7h5 Red3 Ke2+ e3 Rf2 Qhg2 Nh1 Qh3 Qe7 Kc3 N5g3 Qhg2 Qe4 Qf1+ Kf3 Qdb5 Qe7 Rdd8 Ke4 Rde8 Rf5 Kd2 Rf6 Kc1 Rf2 Rd8 Qb4 Rd3 Rd2 Rc3 Kd4 Qbb7 Kc5 Rd3 Nf2 Rd4 Nfh1 Re4 Rf2 Qa6 Qb6 Qa5+ Qb5 Qd2 Qb4 Qd5#
r1b1Q2r/qk1n1Bn1/5b1B/1r2QN2/2bbrN1R/2Kp3p/1p3BqQ/2Q1R3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 g4 b5 f4 d5 a4 Kd7 c4 Kc6 a5 e5 c5 h3 g5 e3+ Kc2 d3+ Kb3 h2 a6 e2 a7 e1R g6 d4 f5 d2 f6 h4 g7 d3 f7 h3 Na3 e4 Qe2 d1B+ Nc2 e3 Ra4 Nf6 g8Q Nbd7 Qg5 Bg7 f8B Qa5 Qe5 Nh5 Qd2 Bf6 Bg2+ Bf3 Bh6 e2 Ne3 Ng7 Nf5 Kb7 Bb2 Qb6 Bd4 Bd5+ Kb2 b3 Kc3 b2 Bf2 b1R Rh4 Rb2 Bf3 Rb4 Bh5 Bc4 Bf7 Reb1 Qf4 e1B+ Qd2 Ra4 Ne2 Rab4 Rf1 h1Q Nf4 Qg2 c6+ Ka6 c7 Kb7 Bc5 Bf2 Re1 Ra4 Qc2 Bg1 Bf2 b4+ Kd2 b3 Kc3 Rb2 Qc1 Re2 Qd2 b2 Qc1 Qc5 Qc2 Rb8 Qc1 Re4 a8Q+ Kb6 Qd5 Raa8 Qe6+ Ka7 Qe8 Rb5 Qd2 Bb7 c8Q Ka6 Qcd8 Qa7 Qc1 Bc8 Qde7 Kb7 Qc5 Qa1 Q5e3 Qa6 Qg3 Qa4 Qh2 Qa7 Bg3 Be3 Bf2 Bd4+
q1RR2KN/1N2QBb1/3Rr3/bq4QN/np1bn1N1/4p1p1/nk2rn2/3b2B1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 e5 c4 b5 a4 g5 f5 d5 h5 g3 h6 g2 h7 d3+ Ke3 g4 a5 g3 a6 d4+ Kd2 b3 c5 b2 a7 Bg7 c6 Na6 c7 Nc5 Ne2 g1B Na3 b1Q Nf4 Na4 Qg4 Bf2 Nc2 e3+ Kd1 e4 Qg5+ Ke5 f6+ Bf5 c8N d2 Ke2 d1N f7 Nf6 Rh6 Re8 h8N Re6 f8Q Qa5 Nd6 Rae8 a8R Qb3 Rc8 Qa8 Bg2 d3+ Kf1 d2 Ke2 Bg1 Qe7 Nf2 Nh5 d1N Nb7 Kd5 Rd8+ Kc4 Bd2 Qb2 Rc1 Kb3 Ba5 Qb1 Bb6 Kb2 Bh3 Bg6 Bf5 Bh7 Bg6 Bg8 Bf7 Ndc3+ Kf1 e2+ Kg2 e1B Ne3 Bd2 Ng4 Na2 Rcc8 Ba5 Ba7 b4 Bb6 Qd3 Be3 Nh1 Kh3 Qb5 Kh4 Bf2 Bc5 Bd4 Bb6 Bc3 Be3 Bd4 Bg1 Nf2 Rg6 e3 Rh6 N6e4 Rf6 Ra6 Rfd6 Bh7 Nhf6 Bg8 Kh5 Rc6 Kg6 Rc2 Nh5 Re2 Bc4 Bd5 Kh7 Bc6 Bf7 Bd7 Qf8 Re6 Kg8 Bc6 Qfe7 Bd5 Rcc6 Bb3 Rcc8 Bd1
2N3n1/1R1rR1b1/2kp1Bq1/b2q1nbB/p2QQ3/NR1np1Nb/6nr/R6K w - - 0 1 illegal: No possible last move
b2Nk3/1rB1r3/p2qQ3/7N/qBq1RQ2/B1pQRpnq/1br4r/1B1n2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 c5 e4 h5 d4 f5 g4 c3 b4 a3 e5 c4 g5 c2 g6 h3 b5 f3 b6 h2 g7 a2 b7 h4 d5 a6 e6 h3 e7 c3 d6 f4 Bd3 Rh7 Kf1 f2 Qg4 Nc6 b8B Bb7 Bc7 Na5 Na3 Rb8 Ne2 Ba8 Ng3 Nh6 g8Q Nf5 Nb5 Rb7 Nh5 Nc4 Na7 Nb2 Qc4 Nd1 Ba3 c1R Bb1 Rc2 Qd3 Qd7 Rg1 h1Q Nc6 h2 Nd8 Qd5 Rg2 Qc4 Rg3 h1R+ Kg2 Rh4 Re3 Ng3 Ba5 Rh1 B5b4 Re1 Kh2 f3 Qf4 f1Q+ Re2 Nf2 Re3 Ree2 Re4 Qfh3+ Kg1 Nd1 Re3 Qdc6 Re4 Rh2 Re3 Kd7 e8Q+ Kc8 Bb2 Qce6 Re4 Qec4 Bc5 Rhc7 d7+ Kb8 Qf5 Nf2 Qee6 Bh6 Qff6 Qd6 Bb4 Bc1 Qf8 Rc8 Qf4 Kc7 Nf7 Re8 d8B+ Kc6 Bb6 Ree7 Bc7 Rd2 Bc2 Re2 Qeh6 Kd7 Qe6+ Ke8 Rb1 a1Q Nd8 Qa5 B2a3 Bb2 Re1 Qa4 Bb1 Rc2 R1e3 Nd1
NknK3N/3n2pq/B2pR2Q/BrNqQ3/3nnpRR/1b6/5r2/r1br3N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 a4 f5 h4 d6 c4 Kd7 e4 Kc7 a5 g3+ Kf3 b3 c5 d3 e5 g2 h5 d2 a6 b4 e6 b2 e7 b3 e8R Bb7+ c6 Be7 a7 Bg5 h6 Nd7 h7 Qc8 Rh4 Ne7 Nc3 b1R Qe1 d1R Nge2 b2 Bd2 Rf8 h8N Rf7 Ra4 g1N+ Kf2 f3 Kg3 f2 Rag4 Ba6 Na4 Nf3 Nc5 Nd4 Kh3 Qb8 Ng3 Qb7 Qe5 Bc4 Nh1 Bb3 Ba6 Nc8 Re6 f1N Bb4 Nd2 Ba5+ Ncb6 Kg3 Ne4+ Kh3 Rb8 a8N+ Kc8 c7 Ra1 Rh5 Bc1 Rhh4 Nd2 Kg3 b1Q Kf4 Qc2 Kg5 Ne4+ Kg6 Rf8 Be2 Qd5 Bf1 Re8 Kf7 Rf8+ Ke7 Qd3 Na6 Kb7 c8Q+ Ka7 Qe8 Nc8+ Kd8 Rb5 Nc5 Rf6 Qg6 Kb8 Rh2 Qh3 Bc4 Qh7 Rhh4 f4 Qh6 Rg6 Rg1 Rg3 Bd3 Rh3 Rgg4 Rf3 Be2 Rf2 Bd3 Rb6 Ba6 Rb5
rR1rn1b1/kp1NR1nB/3q3R/1rbNBpK1/B1R2q2/Q1p4r/1n3n2/1Q6 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 d4 Kb6 e4 c5 g4 h5 a4 f5 d5 b3 d6 b2 a5+ Ka7 e5 c3 d7 h3 a6 c4 g5 h4 e6 c2 e7 h2 e8R h3 g6 Nf6 g7 Nc6 g8B Bc5 Re4 Ne8 Nc3 b1R Nd5 c3 Rc4 Rb5 Bh7 Rg8 Be3 c1N Bd4 Nd3 Qb1 Nb2 Be5 Qb6 d8Q Be6 Qd6 Nd8 Bd3 Rh8 Bc2 Bg8 Ba4 Ne6 Qe7 N6g7 Ra2 Bd4 Qa3 Qd6 Ra1 Bc5 Ra2 Nd1 Rg2 Rd8 Rg6 Ra8 Re6 Nb2 Re7 Rd8 Ne2 Ra8 Ng3 Rd8 Nh5 Ra8 Rg1 h1R Rg6 h2 Nhf6 Rd1 Rh6 h1N Nd7 Nf2 Kg2 f3+ Kg3 Rh1 Kf4 Rh3 Kg5 Nfd1 Qba1 f2 Q1a2 f1Q Qb1 Nf2 N7f6 Kb8 Nd7+ Kc8 Ne3 Kc7 a7 Rd8 a8R Qc1 Nf6+ Kb6 Rb8 Ka7 Nd7 Qcd2 Bg6 Q2d4 Nd5 Qe4 Bh7 Qd4 Bf6 Q4f4+ Kg6 Nc7 Rf7 Rf8 Re7 Be6 Rbe8 Rhg8 Be5 Rh8 Rf7 Rhg8 Ree7 Ra8 Rf8 Rh8 Rb8 Rd8 Kf6 Nce8+ Kg6 Qe4 Kg5 Bg8 Qb4 Qf3 Qa3 Qf4+
1B2n3/QBr2k1p/N7/q1B3q1/br1Q3N/npq2p2/1R3B1p/b1nRKbR1 w - - 0 1 illegal: No proof kernel
BR1Qr3/1BQ2p2/1Bb1Q1R1/1pq5/2nq2N1/3p2bp/1N1K1Bq1/k1n2rbn w - - 0 1 illegal: No proof kernel
kNrr4/p3p1r1/R2pNb2/1q1R1Q1q/Bp1n2Qb/1N1qn3/3Q3Q/2K3Bb w - - 0 1 illegal: No proof kernel
1QB2Qb1/bQB1pn1Q/R3rn1b/8/1K2N1q1/N1p2p1R/3Bpb2/rr1kb3 w - - 0 1 illegal: No proof kernel
2BQ1b2/RnnpRbnN/1R2r3/7p/b2QpB2/n1RQ2nr/1K2N1qp/7k w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Ke6 c4 Kf5 Kc2 b5 f4 e5 a5 b3+ Kb2 b4 g3 d3 c5 e3 a6 Ke4 a7 h3 c6 e2 c7 e1N g4 h2 f5 d2 g5 Ba6 c8R Nh6 g6 Bc4 f6 Bf7 g7 Na6 g8R Nc7 Ra5 Nd3+ Ka1 Nc5 Nf3 Nf5 Nh4 Nb7 Kb2 Ng7 Ba6 h5 Ra3 Rh6 Re1+ Kf4 Qc2 Kg3 Ng6 Kg2 Qd3 d1B Nc3 e4 Bf4 Rb8 a8Q Qe8 Re2+ Kh1 Qa7 Qe5 Rc2 Qg5 Ne2 Qg2 Rc3 Ra8 Re8 Rb8 Kb1 b2 Re7 Ba4 Qad4 Rc8 Rab3 Rb8 Kc2 b1N Kb2 Nd2 Ra3 b3 Rh8 Nd8 Bc8 Nf1 Ra2 Nb7 Ra1 Bb5 Ra7 Ng3 Rh7 Bc6 Re6 Ba4 Rb6 Be6 f7 Bc4 Ne5 Re6 Ng4 Bd5 Nf6 Bc4 Kc1 b2+ Kb1 Bab5 Kc2 b1N Kc1 Ba4 Kb2 Be7 f8Q Na3 Qd8 Bf8 Qd6 Re5 Q6d4 Bf7 Rh6 Re7 Nh7 Re5 Rhe6 Ra8 Re7 Re6 Ra5 Ra6 Rd6 Rc6 Ra7 Rc5 Rda6 Rg5 Rac6 Rg4 Rca6 Rh4 Rb6 Rh3
r2r2b1/pp5k/p6q/QN2bR1B/3bnNn1/1b2BQp1/2R4n/NK3RbN w - - 0 1 illegal: Other
1K2r2B/1b6/Q1r1B1rq/3pNR2/1n3ppB/3nNpR1/2Bb1Qr1/2kb2nN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 f3 Kf2 Ke7 Kg3 Kd6 Kf4 g3 e4 Kc5 Ke5 f5 c4 d5 a4 b5 a5 g5 h5 g2 h6 d3 a6 b3 h7 Kb4 a7 g4 c5 d2 c6 b2 c7 Bc5 Qe1 Kb3 Ne2 Kc2 Rh5 d1R Bg5 b4 Bh4 b3 Nbc3 b1B Ng3 b2 Nh1 Bb7 c8B Rd2 Nd1 f4 Rf5 Na6 Qe2 Rb8 a8Q Nb4 Qaa6 Nh6 Qe3 Rg8 h8B Qb6 Bd3+ Kc1 Ra2 g1N Qe2 Bc2 Ne3 Nc6+ Ke6 b1R Kd7 Bb4 e5 Qa5 e6 Qb6 e7 Nf7 e8N Bd1 Nf6 Ba5 Rb2 Nfe5+ Kd6 Rg5 Nd7 Rc2 Ra2 Rbb2 Qe1 Rc3 Bb1 Nd3 Ne5 Rh2 Rg2 Ra8 Rg3 Rg2 Bd7 Re8 Bc2 Rc4 Bc8 Bd2 Qf2 Ncb4+ Kd7 Qa5 Kd6 Qd8+ Bd7 Qf6+ Be6 Qh6 Kd7 Rg6 Kd6 Rc6+ Kd7 Rd6+ Kc7 Re7+ Kb8 Rc6 Bc8 Ree6 Bd7 Re7 Be6 Re8+
n7/bkqRRn2/rp1p4/1B3bBp/R1pn3Q/1rNBQrb1/2BK4/4Nb2 w - - 0 1 illegal: No proof kernel
rr3n2/Q3qr2/2b2k2/1BQ3b1/5ppp/pR2BQn1/1b4N1/K1NqBbRQ w - - 0 1 illegal: No possible last move, all moves rejected
1R3q2/6R1/K5Qb/rp1prrnb/b3NBB1/N1npQ2R/4p1qb/1B1k3B w - - 0 1 illegal: No possible last move
1rQ1n3/N1BRnRnQ/1K1nBb1p/R7/4p1b1/p3p1Q1/qN2kq2/4qR1r w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Kf6 f4 e5 c4 a5 b4 d5 b5 d3+ Ke3 h3 f5 Kg5 b6 a3 f6 d4+ Kd2 Kf4 b7 a2 f7 a4 g5 h2 c5 Qf6 c6 Ne7 c7 Nd7 b8R Bg7 Rb7 Rb8 Ne2+ Kf3 f8R a3 g6 Qf7 Qb3 Nf6 Nec3 Bg4 c8Q Ne8 Rd7 Bf6 g7 Kf2 Rg1 h1N g8Q Ng3 Na4 Ngf5 Nbc3 Nfg7 Bh3 Kf3 Rb1 a1Q Nb2 Qa2 Nb5 Kf2 Qbc3 Kf3 Na7 e3+ Kd1 d2 Kc2 d1N Kd3 Kf2 Q3c7 Nc3 Rf1+ Kg3 Bd2 Ne4 Ba5 N4d6 Rbc1 h6 Qh7 Rg8 Rc5 e4+ Kc2 Qae6 Re5 d3+ Kc3 d2 Kd4 d1Q+ Kc5 Qe1 Bb6 Qa2 Rg5 Qh5 Rf7 Qh4 Rh5 Qf2 Ba5 Kf3 Rg5 Ndf5 Qg3+ Ke2 Bc7 Nfd6 Rd5 Bh5 Be6 Bg4 Na4 Rb1 Nb2 Qe1 Kb6 Rf8 Rff5 Qf2 Ra5 Rh1 Rf3 Qe1 Rf4 Qh2 Rf1 Qhf2 Rd8 Rg8 Rd7 Rh8 Qb7 Rg8 Bb8 Nc7 Qc6 Rc8 Qb7 Nce8 Bc7 Ra8 Qc8 Rb8+
3Rq2Q/2q2r1B/bR1nB1p1/5NQQ/4p2p/B1pkr3/NQ3bn1/2nrnK2 w - - 0 1 illegal: No proof kernel
r4Rq1/3bRN2/K1Bbp1rn/Np3nQB/2pR2BB/1rpq4/kr2nQ2/8 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 g4 Ke6 d4 Kd5 a4 h5 f4 c5 f5 h3 g5 h2 g6 b3 f6 e6 g7 c3 a5 Kc4 f7 b6 d5 e3 d6 b2 d7 h4 a6 h3 a7 Ba6 Nf3 Nh6 g8B Qe8 d8Q Bd6 f8R Bc8 Qd4+ Kb3 Kd3 e2 Bf7 e1R Na3 b1R Nc4 Rg8 Ra4 Bd7 Bh5 Re2 Qf2 Rg6 Bg5 Nc6 Nfe5 Ne7 Nf7 Reb2 Bh4 Nef5 Qg5 b5 Bfe2 Qd8 Beg4 Qb8 Rb4+ Ka2 Na5 Qd8 Rd4 c4+ Ke4 Qb8 Rf1 h1N Re8 h2 Re7 Nfg3+ Ke3 Ne2 Ke4 Qg8 Ke3 Re8 a8B Nhg3 Bc6 Ngf5+ Ke4 Ba3 Ke5 Ra8 Ke4 h1Q+ Ke5 Qh3 Ke4 Rb4 Ke5 Ng3 Kd6 Ngf5+ Kc5 R4b3+ Kb6 Qd3 Kb7 R1b2 Kb6 Re8 Ka6 Bd6 Qe1 Qh7 Ne5 Ne3 Rf8 Nef5 Nf7 Qg8 Qf2 Ra8+
Nnb3K1/3r1r1B/3pQ1pp/q3B2b/1RpRR3/bb3k2/1BqRq2Q/4nN2 w - - 0 1 illegal: No proof kernel
BQ4R1/6Q1/2p2bn1/NqBpr2k/3nR1qp/4Rbn1/nrp5/KNBqB3 w - - 0 1 illegal: No proof kernel
bB1NBB1R/3Q1r2/NKpR1n1p/5r2/5p1p/1k3N1Q/qr6/1bbn1qBb w - - 0 1 illegal: No proof kernel
k1qn3R/7b/pnpB2Q1/2NbQr2/2nqp1K1/Q2r1BbQ/3p1R2/B1N4n w - - 0 1 illegal: No proof kernel
kB1qBQbR/4pR2/2N4r/1b1rr1R1/2n1K3/Bp1R4/Qq1pp3/Nn2b1b1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 a4 b5 h4 d5 c4 Kd7 f4 Kc6 f5 Kb7 a5 b3 f6 d3+ Ke3 b4 c5 b2 f7 g3 h5 g2 h6 d4+ Kf2 d2 h7 g4 Rh4 g3+ Ke2 b3 Ra2 e3 Kd3 Nf6 Rh3 Ne4 Qf3 d1B Na3 b1Q+ Nc2 Nd7 Ne2 g1R Ba3 Bg7 f8R g2 Rf7 Qb2 Na1 Nb6 a6+ Ka7 c6 Nd2 c7 Nbc4 Qf6 Nb1 Ke4 d3 Nd4 Be6 c8R Be2 Rb8 Rf8 h8B Rh1 Rc8 Rb8 Nc6+ Ka8 a7 g1B Rg3 Rh2 Rg5 Rh6 Qf4 Bc3 Be5 Be1 Bed6 Qh8 Rd2 Qc3 Bg2 Qb2 Bf3 Bf1 Bh5 Be2 Rf6 Bf1 Be8 Bg8 Rf7 Be2 Rc7 Rb5 Rc8+ Kb7 Qh2 Rd5 Bb8 Ka8 Rd1 Bf1 Qg2 Qg7 Qa2 Qb2 Rc1 d2 Rc3 e2 Rcf3 Bh3 Rd3 Bd7 Rfg7 Rff5 Rf7 Kb7 a8Q+ Kb6 Qa5+ Kb7 Qc3 Ka8 Qg7 Bh2 Qf8 Bg1 Rc7 Bc8 Rd7 Ba6 Rd6 Bb5 Rdg6 Rh3 Rh6 Rh2 Rhh7 Rh6 Rh8 Rfe5+
b7/Nk1BpRb1/qBr3Br/8/p3K2p/1nBn3q/1QQ1Nnp1/Q2rR2r w - - 0 1 illegal: No proof kernel
1B4N1/1Bpb1r1k/RQ3bpq/2n2r1R/nN1RKb2/2p5/pqB4B/2n2Q1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 a5 d4 f5 h4 Kf7 b4 Kg6 e4 f3 Ke3 g3 b5 f4+ Kd2 g2 b6 f2 h5+ Kh7 d5 g6 b7 f3 Ke3 a3 h6 a2 e5 a4 d6 a3 d7 Qg5+ Ke4 Na6 b8B Ne7 d8R Nd5 e6 Bd7 e7 Nb6 e8B Na4 Nh3 g1N Nc3 Bd6 Nf4 Ne2 Nd3 Bf4 Nb4 Rf8 Ncd5 Rf5 Bg2 f1Q Ne7 f2 Ng8 Rf7 Bb2 Nc1 Rh5 Ra7 Bf3 Qfg2 Be5 f1N Qd4 Qh2 Qb6 Qb2 Bd1 Ra8 Bc2 Rf5 Bf7 Qh4 Bd5 Ng3+ Kf3 Rf7 Bb7 Nh1 Ke4 N6c5+ Kd5 N5d3 Ke4 Ra5 Bd6 Raf5 Be5 Be6 Rd4 Bd7 Bd6 Kh8 h7 Qg5 Be7 Qh6 Bh4 Kg7 Bg3 Kh8 Bh2 Kg7 Rb1 a1B h8Q+ Kf8 Qhf6 a2 Qg5 Kg7 Qg1 Kh7 Qf1 Ndc5+ Kf3 Qa3+ Rb3 Qb2 Ra3 Nc3 Ra6 N3a4 Rd3 Qb1 Rd6 Bf6 Rd5 c3 Rd4 Ne6 Ke4 Qa1 Bd1 Qb2 Bc2 Nec5+
2qB4/bp1n3k/6Np/2N1rq2/p2KBRrn/2n2bp1/Bn1QQB2/2R2b1Q w - - 0 1 illegal: No proof kernel
r1n1bB2/2K2pb1/QbRn1q1b/b2bQ3/1pB2N2/1N1R1p2/2pQ2Nk/2Nr4 w - - 0 1 illegal: No possible last move, all moves rejected
R6B/2k1b3/p1nprp1b/nQ2pbN1/2p1RQq1/3KB1q1/4NNN1/3nr2B w - - 0 1 illegal: No possible last move, all moves rejected
2q1R3/1r1QNR1p/1Q5p/Nbp4k/2p2pn1/2r4r/1b1QQ1n1/B1qB1bNK w - - 0 1 legal: proof: f4 d5 b4 a5 h4 axb4 c4 dxc4 h5 e5 h6 exf4 Qc2 gxh6 Qa4+ Ke7 Qd1 Ke8 Kf2 c5 g4 b5 Kg2 f5 e4 Kf7 d4 Kg6 a4 b3 g5 b2 e5 b4 d5 b3 a5 Ra7 e6 Ne7 d6 Nd5 a6 Bg7 d7 Bf6 e7 Bd4 Be2 Re8 Nd2 b1R Bb2 Ra8 a7 f3+ Kh2 Kh5 g6 f4 g7 Bb7 g8N Qc8 d8Q Bc6 Qd7 Bb5 Qe1 Rc1 Bd1 Rc3 Ra5 Bf6 Ba1 b2 Nb3 b1Q Qd2 Ne3 Ra4 Rf8 e8Q+ Rf7 Ne7 Qc1 Na5 Nc6 Qed8 Ne5 Qb6 Rb8 a8Q Ng2 Qe4 Rb7 Qed3 Rg7 Q3e2 Rg3 Ra3 Rc2 Rd3 Rc3 Rd6 Bg7 Rf6 Bh8 Rf7 Bg7 Nh3 Ng4+ Kg1 Bf6 Rh2 f2+ Kh1 f1B Ng1+ Nh4 Rf2 Ng2 Rf3 Rb3 Re3 Bb2 Ng8 Rd3 Re8 Rc3 Ne7 Rh3+
NRR5/1rq4p/n1prB1qQ/1N2bK1b/5n1p/1p1QB2B/4pr2/k4BQq w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 g4 Kd4 a4 b5 g5 e3 a5 e6 a6 b3 a7 b2 g6 b4 g7 e2 Na3 b1Q Nh3 e1Q Ng5 Nf6 g8B Qg6 Rb1 c3 d3 c2 Be3+ Kc3 d4 c1R d5 Bh6 d6 Rc2 d7 Na6 f3 Rb8 a8B Qe7 d8Q Rf2 Bb7 Bd7 Bc8 Nh5+ Kg4 e5+ Be6 e4 f4 Qc5 f5 Nf4 f6 Be8 f7 Bg7 f8Q Be5 Qh6 Rb7 Rc1+ Kb2 Nb5 Bf7 Q8d3 Rd8 Rg1 b3 Rg3 Qh5+ Kf5 Rd6 Qg4 Qc4 Rf3 Qcc3 Qg1 Qa5 Rc6 Ka1 Rb6 c6 Bcd7 Ra7 Rb8 Rb7 Bd5 Qad2 Rg3 Bh8 Bg2 Qa2 Bd2 e3 Qgf1 e2 Ke4 Qa5 Ne6 Qa3 Rgg8 Qb1 Nec7 Bd4 Bdh3 Qa5 Na8 Ra7 Be3 Qc7 Rgc8 Rb7 Bde6 Be5 Qh1 Qg1 Bf1 Qf3+ Kf5 Bh5 Qh2 Qfh1 Qg3 Qgg2 Qh2 Qg3 Qg1 Qg6+
Kb1BR3/QNpNnB2/p4p2/R2b2Q1/3Q2pq/rQbn1k2/1B1r1p1n/3q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 e4 Kf6 h4 Ke5 d4+ Kd6 b4 g5 h5 g3+ Kf3 c3 b5 g2 d5 Ke5 b6 a6 b7 a3 d6 a2 d7 c2 h6 Rh7 Na3 Rg7 h7 Bd6 h8Q Nh6 Bb2+ Ke6 e5 Kf5 e6 c1N e7 Nc6 b8Q Bb7 e8Q Nd3 Qe7 Bc5 Qb3 Ba7 Nc4 Ng4 Na5 Rg8 Re1 a1B Qd4 f6 Qg7 Ne7+ Re4 Qc8 d8B Bd5 Nb7 Rh8 Rh5 Nh2+ Ke2 Kg4 Nf3 g1Q Ne5+ Kg3 Nd7 g4 Qg5 f3+ Kd2 f2 Kc3 Kf3 Re5 Ne1 Bc4 Nd3 Re6 Qd1 Re2 Bc6 Bf7 Be4 Kc4 Rh7 Bc1 Bc3 Bb2 Bc6 Re5 Rh8 Ra5 Re8 Rh6 Rh8 Rg6 Rh3 Rg8 Rg3 Re8 Be4 Nf8 Qf5 Nd7 Qh7 Qd2 Qh4 Qg5 Bb6 Qa7 Rc8 Qb8 Ba7 Qa8 Bb8 Qaa7 Bh7 Ra3 Bg8 Ra5 Ng6 Kd5 Rh3 Be7 Rd8 Kc6 Rg3 Nf8 Rd5 Bd8 Rh3 Nd7 Rg3 Nbc5 Ne7+ Kb7 Rd6 Ka8 Rh3 Bc4 Bd5+ Nb7 Nb4 Ra4 Bg8 Qab6 Kg2 Qde3 Rd2 Qc2 Be5 Ra5 Bf7 Qef4 Ra3 Qb3 Nd3 Qa7 Bc3 Qfd4 Kf3 Be6 Bg6 Bd5+ Be4 Bf7 Bd5
2B4K/2p3p1/nQqR4/N2Nq1N1/pQ1br1pR/3p1nkN/1r1BQb2/1bn5 w - - 0 1 illegal: No proof kernel
r1B1QR2/1R2QN2/p2pN1Rb/5R2/r1nBkpb1/7p/2pbb2K/2qn1N1n w - - 0 1 illegal: No proof kernel
Q2B2nQ/1p2r3/5prR/1kq3Q1/Nrpr2p1/B3n1bQ/B1p3N1/nb1R2K1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c3 a4 g3+ Kg2 Kd7 e4 Kc6 d4 g5 h4 g4 h5 b3 a5 b2 h6 Bd6 a6 Qf8 e5 Bf5 a7 Na6 e6 Rd8 a8Q Nb4 h7 Nc2 e7 f6 Ne2 Kb5 d5 c5 e8Q+ Rd7 Qd3+ c4 Qee3 Rf7 Rh4 f3+ Kh1 f2 Nf4 Be5 d6 g2+ Kh2 g1R d7 Be4 d8B Qc5 Bg2 Bg6 Be4 Rd1 Qh3 Bb8 Qde3 f1N+ Kg1 Re7 Ng2 Rd4 Qg5 Bg3 Rh5 Nfe3 Bd3 Nh6 Be4 Rf8 h8Q Rg8 Rh4 Rgg7 Bd3 Ng8 Rh6 Bf5 Be4 Rg6 Bd3 Nb4 Bc2 Be4 Bb3 Nbc2 Ba2 Bf5 Nd2 b1R Ne4 Rb3 Ba3 Rb4 Rb1 Na1 Rd1 Qc6 Nc5 Bb1 Na4+ Qc5 Rh5 c2 Rh4 Rc7 Rh6 Re7
3Kn1Q1/rqq3R1/2p2Nnp/1p6/1pR3Qb/1pRrN3/1B3bN1/NBb2b1k w - - 0 1 illegal: No possible last move
2N2n2/1nQ1R2R/1p1p1R2/qpBp1nn1/2b3kp/bq4r1/NNK3Q1/R4r1B w - - 0 1 legal: proof: f4 e5 d4 exf4 b4 g5 h4 gxh4 b5 a6 d5 axb5 Nf3 c6 Ng1 cxd5 Kd2 Ke7 g4 Ke6 e4 h5 c4 f5 a4 f3 c5 f4 a5 h3 c6 f2 g5 f3 a6 h4 e5 Kf5 e6 h2 e7 Nh6 e8R Qa5+ Nc3 Nf7 a7 Nd8 g6 Ba3 g7 Rf8 c7 Kg4 Bg2 f1Q Ne2 f2 Re7 b6 Qc2 d6 Nf4 Nb7 Be4 Bf5 c8N Qh3 Rf1 h1N Nd3 Ng3 Bh1 Nd7 Nb2 Bd3 Kd1 Bc4 Be3 Rf3 Bc5 Nf8 Na2 Ne4 g8Q+ Ng5 Qc3 Rg3 Kc2 Rb8 Rh7 Ra8 Qcg7 Rb8 Qc7 Ra8 Rfe1 f1N Ree7 Rb8 a8R Ne3+ Kc1 Nf5 Kc2 Qf1 Ra7 Qf3 Ref7 Qe3 Rf6 Ra8 Ne7 Re8 Nc8 Re4 Qgg7 Rf4 Qg6 Nh6 Qe4 Nf5 Qg2 Rf1 Qb8 Nd8 Rae7 Nb7 Qc7 Qb3#
4B2r/b1K4n/Rpp4k/1Q2B2n/1pqn1NpQ/R2n1r1N/qQp2R2/1b5Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 e4 f5 a4 Kf7 h4 Kg6 e5 g3+ Kf3 g2 d4 b6 d5 c3 e6 Kh7 e7 Nc6 e8Q Nf6 a5 Bd6 a6 Rf8 h5 Qd7 a7 Qe6 h6 Rb8 a8R g4+ Kf2 f3 R1a3 f4 R8a6 c2 Rh2 Ne5 Bb5 Qf7 Ba4 Be6 Nc3 Kg6 Bd7 c6 h7 Rc8 h8Q Nh7 Nce2 Bb8 d6 Ba7 Bb2 Ba2 Qe6+ Kg5 Qc4 Bb1 Qb5 Qa2 Ba1 Rf7 Bc3 Rg8 Be8 Rf6 d7 Rff8 Bh5 Kh6 Nh3 g1N Be8 Rf7 d8Q Rgf8 Ng3 Ne2 Qh1 Rf6 Nh5 R6f7 Kf1 f2 Kg2 f1N Qh4 f3+ Kf2 Nfg3 Ke3 f2 Rg2 f1Q Rf2 Nf5+ Ke4 Ng7 Bd4 Rf3 N5f4+ Nh5 Bc3 Nc4 Qd4 Nb2 Ke5 Rh8 Kd6 Nc1 Qde5 Qfc4 Kc7 Nbd3 Ba1 Ne2 Qc3 Qc5 Qb3 Qc4 Be5 Nd4 Qc3 Qab3 Qb2 Qa2
b4Kq1/qkb2p2/1N3pRQ/R2r1q1p/1Nqp1r2/B1pB1Q2/7N/N3Qn1n w - - 0 1 illegal: No proof kernel
4b2n/K3p3/b1NQ1n2/1RBpp1pp/1bBqB1k1/2NQR3/Br2r3/2Rqb3 w - - 0 1 illegal: No proof kernel
nN2Q1r1/r1B1Q1B1/qb1pnRpb/6QB/2RKp3/1pp1p1nB/8/1kNb4 w - - 0 1 illegal: No proof kernel
1nB5/1rQ1BpK1/1q2bn2/N2Bp1R1/1bB1bkpN/Rp4p1/1p1R4/1Q3nr1 w - - 0 1 illegal: No proof kernel
2br1NQ1/1pR3NK/1rQ1r2q/2p3b1/1R3B2/B3Q2n/2p1nppp/nQ1B2k1 w - - 0 1 illegal: No proof kernel
2q3rQ/2p1K3/6bN/4B1Np/1b1q1b1Q/1prB2p1/Bppn2n1/2k1NRRB w - - 0 1 illegal: No proof kernel
Kb4k1/3n1rp1/B1r3qQ/1p2B1NN/Rp2bR1b/BppQn3/Q2p2B1/3b4 w - - 0 1 illegal: No proof kernel
Nr2qB2/2K2N1R/1R2b2q/b7/2Np4/3NNBrb/pnQ1br1N/6kq w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 b4 a5 h4 gxh4 c3 dxc3 Qc2 a4 Qd2 Nc6 Qd1 Na5 bxa5 Qf6 Qd2 Qg5 Qd1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ Kg3 a6 Kf2 g4 h5 g5 f5 g6 d5 a7 a3 b6 c2 b7 a2 b8N d4 g7 f3 Bb5 h3 Bc4 h2 Bf1 h4 Na6 f4 Ba3 c1Q Bc4 h3 Bd5 Nf6 g8N Ne8 Nc5 Nd6 Nf6 Be6 Nd2 Rg8 Qc2 Qe8 Rb1 Rg3 Rb6 Rb8 a8N Kg2 Bb4 f2 Ng4 f1B Ngf3 Be2 Nd3 Be7 Nc4 Bd8 Rb7 Ba5 Rb6 Nb5 Bf8 Nc3 Kd6 Nd1 e5 Nb2 Kc7 Qe3 Rf1 h1R Nfh2+ f3 Rb1 Qc1 Nge3+ Kg1 Bb7 f2 Bf3 f1B Ra1 Bd7 e6 Bc8 e7 Be6 Ng2 Qh6 Nge3 Qeh5 e8N Qb5 Ned6 Qe8 Nhg4 Rh2 Nf7 Rf2 Rb1 h2 Rc1 h1Q Nh2 Nd1 Rb1 Bg2 Rb5 Nb2 Rh5 Bgh3 Rh4 Qf6 Rh7 Qh6
3R2r1/6B1/2nB3B/BKQBqNr1/4qnr1/B1b1nR2/q1Nq1r1k/bq6 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 b5 e4 d5 e5 dxc4 e6 fxe6 Nf3 e5 Qc2 e4 Ng1 Ba6 Qb3 axb4 Qd1 b3 Ra2 b4 Ra1 Bb5 axb5 Qd7 Qc2 Qd3 Qd1 Qd8 Ke2 Kf7 h4 Kg6 d4 Kf5 f4 g5 b6 c5 h5 e5 h6 e3 h7 e4 d5 g3 b7 Kg4 d6 b2 d7 b3 f5 c3 f6 g2 f7 Kg3 Qd5 c2 Ra2 g4 Nc3 b1Q Qf5 b2 Ra7 c4 Nd5 c3 Nf3 g1R Ne5 Qe8 d8B Bg7 f8B Nf6 Nc6 Qe5 Nb6 Qa2 Ra5 b1Q Bb2 c1N+ Kd1 c2+ Ke1 e2 Kd2 Nd3 Nd5 Nf4 Ndb4 N6d5 Nd4 Nc6 b8B Rg8 h8B Ne3 Kc3 c1Q+ Nc2 Ra6 Rh2 e1B+ Rd2 Rg2 Bfd6 Rf2 Ra3 Kh2 Bg2 Ra4 Ba5 g3 Bbc7 Bf6 Bg7 Qd1 Bf3 g2 Bdf8 g1R Bcd6 Rg6 Rb3 Rg5 Bba3 Nf1 Bh6 e3 Bd5 e2 Bfg7 Ne3 Qc8 Ne7 Qc5 Nc6 Na1 Qbe4 Nc2 Qdb1 Nb4 Nc2 Kc4 Ne3+ Kb5 Qba1 Bc1 Q1b1 Nbc2 Rc4 Rd3 Bc3 Nf5 e1Q Ba3 Qd2 Rd4 Ba1 Rd3 Nf1 Rf3 Ne3 Rb2 Qe6 Rb3 Bfc3 Rb4 Q6e5 Rb3 Bcb2 Rd3 Bc3+ Ka6 Kh1 Be6 Nh5 Bdf8 Qg4 Rd8 Kh2 Bd6 Qgd4 Bf7 Q4d3 Be6 Rcg4+ Bc4 Qe4 Bd5 Bcb2 Kb6 Nf4 Kb5 Bc3+
1r1N1b2/R1nb1Q2/3r1R1n/1N1rR3/1KRqB3/1n2bRn1/r2kBr2/R2r4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 b4 Ke6 h4 Kd5 c4+ Ke4 c5 g5 c6 a5 h5 f5 c7 d5 h6 d3 Kc3 Ke3 h7 d4+ Kc4 d2 b6 d3 b7 g2 b5 a4 b6 g3 Rh6 f4 Kb5 a3 Rh3 g4 Nf3 g1B Ne5 a2 Na3 f3 Qb3 d1R Nf7 Na6 b8R f2 b7 Qd4 Nd8 Kd2 e4 g2 e5 g3 e6 Nh6 Be2 f1R e7 Rf2 e8R Bd7+ Ka5 Rg8 c8B Rh8 Nb5 Nc7+ Na7 Rg8 h8R Rg6 Qd5 Rd6 Rh7 Rb1 Qf7 Rbb6 Re1 a1N Re5 Rb4 Rc1 Rb2 Rc4 Ra2+ Kb4 Nb3 Nb5 R8a5 Na3 Rad5 Nb5 Bh2 Re8 g1R Re5 g2 Ra8 Rb1 b8R g1N Rf3 Bf4 Bb7 Be3 Ra7 Rbb2 Rba8 Rb1 Rg7 Rbb2 Rg6 Rb1 Bd1 Ne2 Rgf6 Ng3 Bc6 Ke1 Bb7 d2 Be2 d1R Bc6 Kd2 Bb7 Rc2 Ra1 Ra2 Ra7 Rbb2 Ba8 Raa6 Bb7 Rba2 Ba8 Rab6 Bc6 Rb8 Ba8 Rc5 Be4 Rcd5
1b2qK1n/5NNb/2b2k2/2RB1bNq/b4R2/b2NB1b1/rbN1Q2n/3b1N2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Ra7 Bc1 Rb7 Nd2 axb4 Nb1 b3 Ke2 b4 Ke1 Rb5 axb5 Rh5 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 h4 d5 c4 g5 f4 e5 b6 d3 Ke3 d2 f5 g3 h5 b2 f6 g2 h6 g4 h7 b3 b7 g3 c5 d4+ Ke2 d3+ Ke3 Qe8 c6 Bf5 c7 Ne7 c8N Nd7 b8N Ng6 Rh6 Ba3 Qc2 d1B Qc7 d2 Nh3 g1B+ Nf2 g2 Qd6 Bh2 Ne7 g1Q Rh5 Qh1 Bg2 Bf3 Qa6 d1B Nd2 b1B Qd3 b2 Nbc6 Bbc2 Nb4 b1B Nf1 Ba4 Qe2 Ke6 f7 Nf6 Nc2 Ng4+ Kd2 e3+ Kc3 e4 Kc4 Bg3 f8N+ Kf6 Kd5 Nh2 Nd3 Bb8 Ne6 Rg8 Rh4 Nh8 Ng5 Bb2 Rf4 Rg6 Qf2 e2 Be3 e1B Qe2 Bb4 Ra3 B4d6 Rc3 Bda3 Rc5 Rh6 Nc6 Rg6 Nd8 Rg7 Nde6 Ra7 Ng7 Ra8 Bf2 e3+ Re4 Ng6 h8N Ra5 Nhf7 Nh8 Qd2 e2 Be3 e1B Qe2 Ba7 Kd6 Bg3+ Rf4 Bfc6 Be4 Qf3 Bd5 Qh5 Be4 Ba2 Bg2 Be6 Bd5 Ra6 Nd8 Bg8 Ndf7 Bh7 Bc1 Bb4 Nfe3 Bb3 Nf1 Ra2 Bd2 B4a3 Be3 Qa8 Bg1 Bba4 Be3 Kg6 Ke7 Qg8 Rc4 Bab8 Rg4 Qc8 Rf4 Qe6+ Kf8 Kf6 Nf3 Qe4 N3g5 Qe8+
1Bn4B/B1b1r3/1q1kN1QR/bb3q2/7b/b1qr1n2/2B3pR/BKn2BN1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 g4 h5 f4 hxg4 c3 dxc3 Qa4 exf4 Qb3 Bd6 Qd1 Bf8 e4 Ke7 h4 d5 b4 a5 b6 f5 b7 g5 e5 d4 e6 c2 Kd2 d3 b5 a4 b6 f3 h5 g3 h6 g4 h7 f4 Rh3 f2 Rh5 a3 Bg2 f1N+ Kc3 d2 Rg5 a2 Kb2 f3 Rg7+ Kd6 e7 f2 e8B Na6 Bh3 g2 Rc7 g3 b8B Ra7 b7 Nb4 Bh5 Be7 B3g4 Bh4 Nc3 Nh2 Bf5 f1Q Nh3 g1B Ng5 g2 Bd3 Nf3 Nh3 Bb6 Bdg6 Ba5 Ne2 Ne7 Nd4 Bd7 Ne6 Nc8 Ng1 Bb5 Rf7+ Qc7 Rf6 Rd8 h8B Qd3 Qe2 d1Q Qe4 Qe1 Be3 Rd7 Bd4 Qec3+ Kc1 Rd8 Bf5 Rd7 Rh6 Rd8 Rb1 a1B Qg4 Qe4 Qg6 Qg4 Bd3 Qf5 Bf1 Rd7 Bdg7 Re7 Bg4 Ra6 Bh3 Rc6 Ba7 Qb6 Rb3 Rc4 Bf6 Rd4 Ra3 Rd3 b8B+ Qcc7 Bg4 Be5 Ra4 Beg3 Ba1 Na2+ Kb2 c1B+ Kb1 Ba3 Rd4+ Qd5 Bf5 Nc1 Rg4 Bh2 Rg3 Qe5 Rh3 B2g3 Be4 Qf5 Rh1 Kd7 Rh2 Qc3 Ng5 Bc7 Ne6 Rd1 Bed3 Kd6 Bc2 Rd3
1NN4r/1p1NN3/p1r1n3/k1Bbr3/3bnQ1r/K1nN2Bb/qR3N2/qR6 w - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 bxc5 gxf4 g5 h6 Be2 h5 Bg4 hxg4 d4 Kd7 Kd2 Kc7 Kc3 f5 Kb3 e5 h4 a6 c4 f3 h5 f2 d5 f1B h6 e3 h7 e2 c6 Kb6 c5+ Ka5 c7 e1R c6 f4 d6 f3 d7 f2 g6 g3 g7 e4 Qf3 g2 Nc3 e3 Nd1 e2 Qf4 Qf6 d8N Nd7 Be3 Bc5 Nf3 g1N Ne5 Bd4 Ka3 Bg2 Rb1 f1Q Rh2 Nc5 Nd3 Bch3 c8N Ne6 c7 Bd5 Nb6 Rc8 N1f2 Qe5 Rg2 Nf6 g8N Ne4 Nd7 Rc1 Ne7 e1R Rh2 Ne2 Rg2 Rb8 c8N Rc6 Rh2 N2c3 Rg2 Rg8 h8B Rg4 Rh2 Qc7 Be5 Rh4 Bd6 Be5 Bec5 Bd4 Rh1 Re3 Rb2 Qa1 Rhb1 Re2 Qh6 Re1 Bg3 Re3 Qf4 Re2 Nf7 Re3 Nfe5 Ra8 Ncb6 Rah8 Nb8 Qc8 Ned7 Qg8 Nf8 Qg4 Nbc8 Qe2 Nc1 Qc4 Ncd3 Nd2 Nh7 Re5 Nf8 Nde4 Nfd7 Qcxa2+
1bQN1r2/1pB2pnR/NnK2Rr1/7q/2p1Rn2/8/qk4Bp/b1R1R1qR w - - 0 1 illegal: Other
1N1Bb1nR/3N1pbr/nN1N1p1p/2p2n2/2KRNn2/Nq1Q4/k1B2p2/2q5 w - - 0 1 legal: proof: c4 a5 g4 g5 f4 gxf4 h4 b5 g5 Ra6 b4 axb4 h5 Rg6 hxg6 d5 Qc2 dxc4 Qc3 Nc6 Qb2 Nb8 Qf6 exf6 e4 Ke7 Ke2 Kd6 a4 Kc5 d4+ Kd6 d5 Kc5 d6 c6 g7 c3 Kd3 f3 a5 c2 d7 f2 e5 b3 a6 Kb4 a7 c5 a8N b2 e6 Kb3 e7 b4 e8N Qe7 d8Q Bd7 g6 Bc6 Bd2 c1Q Nb6 Ba8 Ne2 Qd7+ Nd6 Qd1 Ra4 Na6 Ng3 Q7g4 Na3 b1N Nge4 Nc3 Nd7 Ka2 Kc4 b3 Bd3 b2 Bc2 Ne2 Ba5 b1N Bb6 Qgg1 Bc7 Nh6 g8N Nd4 g7 Nc3 Ne7 Nce2 g8N Bc6 Nd5 Bg7 N5b6 Nf4 Ne7 Ng8 Rb4 Ba4 Nc6 Nf5 Ncb8 Qb1 Qe7 Qgc1 Bd8 Bc6 Qe5 Ba4 Qd4 Bc6 Qd3 h6 Rg1 Rh7 Rg5 Nd4 Re5 Nf5 Re8 Nge7 Rh8 Ng8 Kc3 Bb5 Rd4 Bc6 Kc4 Qbb2 Nf8 Be8 Nfd7 Qb3+
4B1r1/B1r1r1Br/b4Bbb/4R1Br/4Qqk1/1K1n2nN/R1B1bq2/3Nqb2 w - - 0 1 illegal: No proof kernel
3RqB1q/rbb1n3/1K3rBb/1B1BQ1BR/3Nb3/2k3nr/2n1B3/1qN1r2r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 c6 b3 e5 b4 h6 b2 h7 b3 c7 Bb7 c8B Ne7 e6 Bh6 Ra6 Qe8 Nh3 f3+ Kg1 f4 Nf2 g2 Qe2 d1R Ra5 Nbc6 Rh2 Nb4 Rc5 Re1 Nh3 Nc2 Kf2 g1R Ng5 Rh1 Nd2 b1Q Rc6 b2 Rd6 Kc3 Rd8 d4 Bd7 d3 Nb3 d2 Bb5 d1Q Rh5 Qd4+ Be3 Rh3 Nc1 Rf8 h8B Rf6 Bg7 g3+ Kg1 g2 Kf2 Qe5 Bf8 Qd4 Qd1 Qe5 Bfe2 Reh1 Qd5 g1B+ Kf1 f2 Nf3 Qb8 Nd4 Bh2+ Kg2 f1N Kf2 f3 Bg5 Bd6 Qe5 Ng6 e7 Ng3 Bg7 Qh8 e8B Ne7 Bf8 Qc8 Bg6 Qd7 Ba6 Qe8 Beb5 Na3 Ke3 f2 Be2 f1R Bad3 Re1 Bb5 Rc8 a8B Rc6 Be4 Ra6 Bf5 Ra7 Bg6 Bc8 Bd5 Bb7 Ba4 Qa1 Bb5 b1B Bgf7 Bh7 Bg6 Qb1 Bge4 Kb2 Bg6 Nc2+ Kd3 Bb4 Kc4 Bd6 Bgf7 Be4 Bg6 Bb8 Kc5 Bd6+ Kb6 Kc3 Qf4 R3h2 Qf5 Rh3 Qe5 Bc7+
RbbqK2R/2r4R/p3b1k1/BnqR4/rnB5/qQ4N1/1q3R2/N2rRqn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 f5 Kf3 Kf7 b4 h5 e4 d5 g4 a3 c4 d3 b5 d4 g5 a2 e5 h3 c5 h4 e6+ Kg6 e7 d2 e8R d3 b6 h2 b7 h3 c6 Ne7 c7 Nec6 Qe2 d1Q Re5 d2 Rd5 Qc2 Qe1 d1R Na3 Na6 b8R Qc5 Qe7 Nab4 Ba6 Rh7 Qe1 Bd6 Rb1 a1Q Qg3 Qb2 Nc2 Rg7 Bd2 Nd4+ Kf2 f3 Ke3 f4+ Ke4 f2 Qb3 f1Q Bc4 f3 Na1 f2 Ne2 Qa3 Ng3 Nb5 Rb6 Be6 c8R Rc7 Rb7 Qg1 Rb2 f1Q Bc3 Qff6 Rf2 Qf1 Rg1 h1N Be1 Nc2 Ba5 h2 Rcb8 Nb4 Rc8 Kg7 g6 Qfb2 Rcb8 Kh6 g7 Bc8 g8R Kh7 Rh8+ Kg6 Re2 Be5 Re1 Bf4 Rg2 Nf2+ Kf3 Nh3+ Ke4 Ng1 Rf2 Rc6 Rbh7 h1B+ Rf3 Be6 Rc8 Bg2 Rb8 Bgh3 Rf2 a6 Rc8 Ra7 Rb8 Bc7 Ra8 Rd6 Kf4 Bb8 Ke4 Rd4+ Ke5 Bc8 Rf5 Rdd7+ Ke6 Rg4 Rf4 Rac7 Rf2 Bb7 Rde5 Rd1 Rd5 Bc8+ Rhd7 Na2 Be2 Bb7 Rdh7 Ra4+ Rff5 Nb4 Bc4 Bg2 Rf2 Bc8+ Rdd7 Kg5 Kf7 Be4 Be2 Bf5 Bc4 Qdf6+ Ke8 Kg6 Rd6 Bfe6 Rd5 Qd8+
1q1Qrb1R/3R4/q5rB/1kN2B2/4nrnb/bq1N1bb1/bBpBBB2/2K5 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 a4 Kd7 h4 Kc6 d4 g5 Kd2 e5 f4 b5 a5 b3 a6 g3 h5 c3+ Ke3 b4 f5 b2 f6 g2 h6 g4 h7 b3 f7 c2 Kd2 e3+ Kd3 e2 Kd2 e1B+ Ke2 e4 a7 g3 d5+ Kb5 d6 c5 d7 c4 Be3 c1B Rh6 c3 Nd2 b1Q Rd6 c2 Rd3 b2 Bf2 e3 Rc3 Bb7 Rc8 Na6 Ngf3 g1R Rb8 g2 Nb3 Nc5 Ne5 Nh6 Nd3 Ne4 Nbc5 Ng4 Qd2 Qf6 d8B Qa6 Bg5 Qba2 Rd8 b1B Rd7 Re8 a8B Qb3 Bh6 Rg8 h8B Ba2 Bb2 Rg6 Rb1 Bd5 Bb7 Rh1 Bc8 g1Q Bf4 Qg3 Qa5+ Kc6 Qd8 Kb5 Bg5 Rh4 Ra1 Bh6 f8B Qb8 Bfg7 Bb7 Bgc3 Bf8 Bd2 Bc6 Bh6 Ba8 Rd4 Bd5 Bf5 Bc6 Rd7 Bd5 Be5 Ba3 Bb2 Ba8 Bg1 Bg3 Bf2 Nd6 Ke1 Bf3 Be2 Ne4 Rc1 Ne5 Rd1 Rf4 Rh7 Bh4 Rh8 Ng4 Bdc3 Kc4 Bf1 e2 Nb4 Qba4 Rd7 Nd2 Nbd3 Kb5 Ba5 Ne4 Bb4 Ng5 Kd2 Ne4+ Kc1 Qb3 Bbe1 Bg3 Bd2 Bh4 Bd4 e1B Be2 Beg3 B4e3 Qac8 Bf2 Qa6
2r1B3/b1b1k2N/1Rb2rr1/2RRKp2/Rqq2RN1/3Q1bbn/3Bnb2/1n1R4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 d4 g5 e4 c3 a4 c4 d5 b3 e5 c2 d6 c3 a5 f3 Kg3 b2 d7+ Ke7 e6 b4 a6 f2 h5 b3 a7 Nf6 h6 Qa5 d8R Rg8 h7 Rg6 h8R Bd7 Ba6 f1R Bd2 c1Q Ne2 c2 R8h7 Bc6 R7h6 Nh7 Nd4 Qb4 Rg1 Rff6 Na3 b1N Qf1 b2 Kh2 g3+ Kh3 g2 Kg3 g4 Nc4 Ng5 Nf3 Nh3 Ra5 Bg7 Rh1 g1B Rdd5 Bb6 Rg1 Bc7+ Nce5 Bf8 Qd3 Qf1 Rdc5 c1B Ng5 Qff4+ Kh4 g3+ Ng4 g2 Bb5 Qfc4 Rd1 g1B Nh7 Bf2+ Kh5 Bf3 Be8 Nc6 Rd5 Rb8 a8R Nd4 Rac5 Rc8 Ra4 Bcg3 Rf5 Ne2 Rf4 Rg7 Rg6 Bc6 Rgg5 Rgg6 Rgd5 Bh6 Ne5 Bg5 Kg4 B5h4+ Kf3 Bh2 Ng4 B4g3 Be1 Bce3 Bd2 Bd4 Ke4 Rb8 Rb5 Ba7+ Ke5 Rc8 Rb6 Nbc3 Qd4 b1B Rc5 Bbe4 Qd3 Nb1 Rd5 Bd7 Rc5 Bf3 Rd5 Kd8 e7+ Kc7 Rc5+ Bdc6 Bd7 Bh4 e8R Rd6 Rd8 f5 Be8 Rdf6 Rdd5 Bhg1 Re4 Bh2+ Bf4 Bg5 Red4 Bhg3 Re4 Bh6 Red4 Bf8 Bd7 Kd8 Re4 Ke7 Red4 Kf7 Re4 Be7 Red4 Bd8 Be8+ Ke7 Re4 Bh4 Bd2 Bhg3+ Rf4 Bc7+
5qqk/1pR1nB2/nnrn1q1n/1R1N1n1B/3B1BQN/K1r5/2B4b/b4bB1 w - - 0 1 illegal: No proof kernel
Rr2Br2/BNr2nk1/b1bRq1NR/3brRb1/R1b5/Q1R4p/r2n4/6qK w - - 0 1 illegal: No possible last move
1NkN2Nq/R3BbR1/3r1r2/1rbn3n/3r1NN1/4p1n1/3nKN2/1nq2QrB w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 e5 a4 d5 f4 Kd7 c4 h5 a5 b5 f5 e3 g5 h3 a6 b3 g6 b2 a7 b4 c5 b3 g7 h2 f6 h4 f7 h3 Ke2 d3+ Kf3 d4 Na3 b1N Ne2 b2 Qc2 e4+ Kf4 d2 Qd1 d3 Qe1 d1R Bg2 d2 Kg3 Ne7 g8N Nd5 Qf1 Rh5 Rg1 h1Q Nc2 h2 Nf4 e2 Kf2 e1R c6+ Kc7 Ra2 Be6 Ne3 Nd7 Ng4 Kc8 c7 e3+ Kf3 Bb4 f8N Bf7 N8e6 Bc5 Ra5 Qe8 Nd8 N7f6 Ra3 Rb8 a8N Rh6 Ra5 Nh5 Ra7 Kd7 c8N+ Rb7 Nge7 Qh8 Nd6 Rf6 Nc7 Rb8 Ne4 Rb5 Ng8 Kc8 Qe2 Rf1+ Nef2 Rd6 Qd3 Rde1 Qc4 d1R Na6 Rd4 Nb8 Red1 Ke2 Nd2 Bf3 b1N Ba3 Rc1 Rg2 Rg1 Bb4 Rc3 Be4 Ra3 Qc1 Raa6 Qf1 Rac6 N4h6 Rf6 Rg7 Rcd6 Nhg4 Rg3 Qg2 Qc1 Qf1 h1N Ba3 Rg1 Bf3 Rc6 Bg2 Bb6 Bf8 Bc5 Be7 Rcd6 N2h3 Nf2 Bh1 Nfe4 Nhf2 Neg3#
Q2qnK2/q2N2B1/r7/k2qR3/1N1bN1p1/n1q1Nnqn/bRB5/1NNr2n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 Kd7 h4 Kc7 a5 f5 e5 b3 a6 Kb6 e6 d3 e7 d4 e8N b4 h5 g3+ Kf3 g2 h6 d2 h7 g4+ Kf2 b2 a7 f3 Kg3 f4+ Kh2 d3 Qe2 d1N Nc7 f2 Na6 f3 Kg3 d2 Kf4 b3 Ke5 Nf6 Ra5 Ne8 Rh2 Bc5 Qe4 Nd7+ Ke6 Bd4 Ne2 g1N Kf7 Bb7 Bg2 f1Q Re5 f2 c5+ Ka5 Nb4 Qe1 Bf3 Rg8 h8N f1Q Ng6 Qg3 Ne7 Qfh3 Ned5 Nf2 c6 d1Q c7 Qd2 Ne3+ Bd5+ Re6 Qh8 c8N Nfh3 Nd6 Qc3 Bd2 Qhe5 Nc1 Bc4 Rf2 Qd5 Bd1 Rg6 Qf3 Ne5+ Kf8 Rg5 Qh1 Nef3 Ne4 Rg7 Be1 Rd7 Re5 Rd6 Bc2 Ra6 Nbd2 b1Q Rg2 Qa2 Nb1 Rc8 a8N b2 Nb6 Qa1 Rh2 Ba2 Nd7 Rcc6 Bd2 Rd6 Rg2 Qcc5 Bc3 Qa7 Nbd2 b1N Re2 Na3 Nb1 Nf4 Qh8 Nfh3 Qg8 Qb5 Qd5 Qbc5 Qa8 Qd5 Nb6 Qb5 Re6 Bc5 Nd7 Qc6 Bb3 Bb6 Bg7 Qac3 Rb2 Rd1 Re5+ Qd5 Bc2 Bd4
2bn4/Bb1q1b2/3qBkBQ/2n1N2r/3q1B2/B1nnR1bK/2Rr1p2/N2b3B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 f5 d4 c5 h4 g5 a4 b5 e4 f3+ Kh2 f2 d5 c3 e5 b3 h5 b4 a5 f4 a6 f3 h6 c2 h7 b2 a7 c4 e6 b3 d6+ Kf6 e7 c3 e8B Nd7 Ra5 g3+ Kh3 g4+ Kh4 g2 Qd3 g3 Qe2 Ne7 Ra6 Nc6 Ra5 Nc5 d7 Bd6 Bd2 c1Q Rb5 c2 Bh5 Qd1 Kg4 c1N Rh2 N1d3 Na3 b1B Rb4 b2 Bg6 Ba2 Nc2 b1B Qe3 Bf7 Na1 Bc2 Re4 Ba4 Be2 f1B Qh6 Qc7 Be3 Nd8 Kh3 Rb8 a8B Rb2 Bf2 Rd2 Re3 Be5 Bd5 Qd6 Bb3 Bc6 Be6 Qa4 Bd1 B6b7 Bdb3 Be2 Bbd5 Bd1 Bde4 Rg8 h8B+ Rg7 Ne2 g1Q Nd4 g2 Nc6 Bg3 Ne5 Ke7 B4d5 Rh7 Bg7 Qac6 Bf8+ Kf6 Bde4 Bh4 Bg3 Qb5 Bf4 Bg3 Re1 Qgd4 Re3 Qdb6 Bd6 Q6a6 Bb8 Qad6 Ba7 g1N+ Kg4 Rb2 Rc2 Ne2 Kh3 f2 Bh1 Nc3 Rc1 Rd2 Rc2 Nc6 d8B+ Qe7 Ba5 Qed6 Bb4 Nd8 Ba3 Qbd7 Nc6 Rh8 Ne5 Bh4 Qf8 Rh5 Qh6 Bg3+
8/1B1nqn1r/bnq1BB1r/Q2qbB1N/p4N2/knR3K1/2qB1R2/1B2qr2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 b4 Kd6 g4 h5 c4 f5 e4 a5 g5 f3 b5 Kc5 e5 Kb4 e6 d5 e7 h3 e8B a3 g6 a2 c5 d3 b6 a4 g7 d4 b7 h4 c6 d2 c7 f4 Bf7 d3 Ne2 h2 Nd4 h3 Qc2 d1N+ Ke1 f2+ Kd2 f3 Qc6 Bd6 Qd5 Rh7 Nf5 Nd7 b8B Nc3 Ke3 d2 Bg2 d1Q Ng3 f1Q Be6 f2 Bd2 Qe7 Nh5 Ba6 c8B Qc2 Kf3 Qe1 Rf1 Nh6 g8B h1Q Ba7 h2 Bd4 Ra7 Bf6 Nf7 Bb7 Bc7 Bf5 Rh6 Qa5+ Kb3 Bgh7 Nd5 Nc3 N5b6 Nd5 Be5 Rc1 a1N Ndf4 Ka3 Kg3 Nb3 Bgh3 Qd5 Be6 h1Q B3f5 Qhe4 Bhg6 Qcc6 Rc3 Qec4 Bb1 Qce2 Bgf5 Qee4 Rh1 Qc2 Rh2 f1R+ Rf2 Ra8 Kh2 Rah8 Kg3 R8h7
rbK1b1N1/2N2N1Q/3rp1n1/kqN2q1b/5q2/4BB1b/qNRR4/1q1rNn2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 g4 Kd7 c4 Kc7 a4 Kb6 f4 h5 f5 e3+ Kd3 h3 f6 h2 f7 h4 g5 e2 c5+ Ka5 g6 e1Q g7 b5 c6 h3 c7 b3 Ra2 b4 Rf2 b2 Qd2 Qe3+ Kc2 d3+ Kb3 d4 Kc4 Rh6 Kc5 Nf6 g8N Ng4 Qc3 d2 Ne2 d1B Qe1 d3+ Nd4 d2 Na3 b1Q Bg2 b3 Bf3 Qf4 Qe4 b2 Qh7 Qa2 Ndc2 b1Q Ne1 Qdd3 Rg1 h1B Rgg2 Bd7 c8N h2 Nd6 Be8 Re2 Bg7 f8N Nd7+ Kc6 Qbb5+ Kc7 Nde5 Nd7 Ne3 Nf7 Rd6 Nc5 e6 Ref2 Qdf5 Nc4+ Kb4 a5 Ng6 a6 Be5 a7 Nf1 Nb2 Ka5 Nfh6 Be2 Nf7 d1Q Be3 Qdb1 Bd4 Bd1 Rc2 Be2 Rf2 Bg2 Be3 Bh3 Rg2 Bd1 Rgd2 h1R Bd5 Rad8 a8N Bh5 Bf3 Rg1 Nb6 Ra8 Nd5 Bd4 Ne4 Ba7 Nc5 Bb8+ Kc8 Ng3 Nc7 Rf1 Ned3 Rd1 Ne1 Nf1
1RBN1k1r/b1p5/1B1q1nnr/nQB2NBq/1Bnb2rR/3bb3/B7/1K3r2 w - - 0 1 illegal: No possible last move
6BN/K2rrR2/2BbrB1n/3pNb1R/2r3Bp/1n1nbq2/k1r4B/2B1Qq2 w - - 0 1 illegal: No possible last move
b1nN1Nk1/1N1r1Np1/b1nb1B1p/1N2N1q1/2B3nQ/1Krb4/2R1bR1r/5q2 w - - 0 1 illegal: No possible last move
B3nn2/bn1N1RKR/2NBB3/4nb1p/B1n2B2/rr3n1p/Q2qb3/2k2Bn1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 h5 c5 b5 c6 d5 g3 e5 a5 e3 Kf3 b3 a6 h3 a7 b4 c7 b2 Bg2 e4+ Ke2 d3+ Ke1 d2+ Ke2 d4 Ra3 d3+ Kf1 b3 Qe1 d1B Ne2 d2 Qf2 Bc5 Ra4 Nd7 Rb4 Nf8 Na3 b1N Nc4 b2 Nb6 Nf6 Nd7 Na3 Rb7 b1N Nd4+ Kg4 f5 e2+ Kg1 e1N Kh2 e3 Nc6 e2 Bf1 Ne8 f6 Nc3 f7 Ne4 Rg1 Rb8 a8B Ba7 Rg2 Kg5 g4 N4d6 Kg3 Nf3 Rg1 e1N Qh2 Ne6 f8B Nac4 Rg2 Rh7 Rf2 Nfe5 Rf7 N1f3 Qg2 Be2 Qf2 Kg6 g5 d1N Bf4 Nc3 Be7 Nf8 Qh2 Ng1 Kh4 Nce4 Qf2 Ned2 Qg2 N6e4 Bd6 Nc5 Qf2 Rh6 Rh7 Kf5 Rf7+ Rf6 g6 Ke4 Kg5 Kd3 Kh6 Rf5 g7 Kc2 g8B Kc1 Bh7 Rg5 Bc2 Rg3 Ba4 Ra3 Qg2 Qh4 Rh7 Qf2 Qh2 Qe3 Qf2 Ndf3 Qg2 Bd1 Qa2 Qd2 Rf7 Nf6 Kg7 Be2 Nb6 Be6 c8B Bf5 Rbc7 Nb7 Be6 Nba5 Nd7 Rbb3 Rc8 Nb7 Rb8 Nfg6 Rh8 Nf8 Rh7 Ne8+
R1b1Rq2/1q3B1n/rq1BN2b/q3K2R/2k4p/1b1nR1r1/4R1pR/3N1nrQ w - - 0 1 illegal: No proof kernel
4n3/2r1N2b/bRN3K1/1Bp1bn2/1pqN1N1N/1Q3RBr/r2k1Nn1/1q2q1n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 a4 h5 g4 b5 e3 f5+ Ke5 b3 d4+ Kb4 d5 c5 d6 c3 g5 h3 g6 c2 g7 h4 a5 b2 e4 h2 d7 h3 a6 f3 a7 f2 Kf4 Rh7 e5 Nf6 Kg5 f4 g8N f3 e6 Qe8 d8N Rc7 e7 Nc6 Ne2 Nd4 Nd2 b1Q Nb7 Bg7 Ne4 Nf5 Nbd6 Ba6 Bf4 c1N Nd4 Ne2 Nb7 Ng1 Ra3 Bh8 Be2 f1N Na5 f2 Rf3 N1e3 Bg3 f1Q Nf2 Kc3 Qb3+ Kd2 Nac6 b4 Bb5 Qf7 e8N Ng2 Ng7 Ne8 Nge7 Q7c4 Kg6 Qfe1 Nh5 Be5 Ng7 Ne2 Rg1 h1B Rf1 h2 Rg1 Rac8 a8N Ra7 Nb6 Rcc7 Rf1 Ng1 Nbd5 Bc8 Nf4 Ra2 Nge6 Ba6 Ng5 Nge3 Na7 Bg2 Nac6 h1R Nge6 Bh3 Ng2 Rh2 Nh4 Ng2 Nf4 Bg4 Re3 Rh3 Rc3 Bf3 Re3 Bd5 Rf3 Qed1 Re1 Bg8 Ree3 Qe1 Re4 Bh8 Re6 Bg7 Nd8 Bh8 Rb6 Be5 N8c6 Bh7+
qrRRb1K1/R2b4/q1N1pbR1/7b/n1Rq3k/bB3p1n/1Qr2N1B/6qR w - - 0 1 illegal: No proof kernel
2b1r3/n1r2R1q/pqkb1n2/Rq2nb2/3n3N/1R3p1B/1R1RN3/R1B1Q1Kb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 f5 b4 d5 g4 Kd7 c4 h5 e4 h3 c5 d3 e5 h4 e6+ Kc6 g5 d2 e7 a6 e8R d4 g6 h2 g7 d3 Re1 a3 Ne2 h3 Ng1 f3 Ra2 f4 Re4 Nd7 Nc3 Ra7 Nd5 Rc7 Ra1 a2 Re5 Bd6 Ne3 Ngf6 Ng2 Re8 Qe1 d1B g8R d2 Rf8 Bc2 Nh4 Bf5 Re3 Ne5 b5+ Kd5 b6 Kc6 Bg2 d1N+ Kf1 Nc3 b7 Nb5 b8R Na7 Rb2 Be4 Ne2 f2 Rg1 h1Q Reb3 h2 Bh3 Bef5 Rf7 Qe4 Rg2 h1B Ra3 Qb1 Ra5 Qd7 Rd2 Qb6 Rg3 Qe7 Rb3 Qd7 Rab1 a1N R1b2 Nc2 Ra1 Rb7 Ra5 Nd4 Ra1 Kd5 c6 Kc5 c7 Kc6 Rf8 Qh7 Rf7 Bce6 c8R+ Rc7 Rb8 Bd7 Rba2 Bc8 Ra5 Bd5 Rf3 Bde4 Kg2 f1Q+ Kh2 Bd5 Rb3 Bh1 Rb7 f3 Rbb2 Qc5 R7b3 Qb4 Ng3 Qfc4 Kg1 Qb6 Ne2 Qcb5
N1b2n2/3Q4/7b/R1rR1p2/2B2rR1/bpKb2nn/RpN1R2b/rRBk3q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 h4 Kf6 e4 Ke5 a4 f5 c4 d5 c5 g5 a5 b5 h5 d3 a6 Be6 h6 Kd4 a7 f3 h7 f2 e5 g3 c6 g4 c7 g2 c8R g3 Rc7 Qh4 Qf3 Nd7 Rc6 Rc8 a8R Ngf6 Rca6 Ne4+ Kd1 d2 Be2 f1B Nh3 g1B R1a4 g2 Qa3 Ng3 Rd6 Be3 Ng5 g1B R8a5 Qe4 Qb3 Bh2 Na3 Rc3 Rg1 Qh1 Qc2 Rc6 Bb2+ Rc3 Rda6 Bd6 Ra8 Nf8 R5a6 Bc8 e6 Bef4 e7 Ke3 R8a7 d4 Ne6 Rg8 e8R Rg4 Rd8 Bh6 Qd3+ Kf2 Rg7 Rf4 R6a5 Rc7 Rg5 Bc5 Kc2 Ke1 Re8 d1R Rg4 Ra1 Kb3 Rc6 Nc7 Bd6 Na8 Rc2 Qf3 d3 Qd5 d2 Re5 Be7 Qd7 d1N Rd5 Nf2 Bd3 Rc7 Nc2+ Kd2 Ra2 Nh3 Bc4+ Bd3 Rb1 Ke2 Bc1 Kd1 Kb2 b3 Rg8 Ba3+ Kc3 b2 Rg4 Rc5 h8R Ng6 Re8 Nf8 Re4 b4+ Kd4 b3 Kc3 Bb7 Re2 Bc8
qq1QrN2/1q2B3/1n1rn2N/1R6/2N1p1b1/3NpBnr/R1Np1q1k/bN1K4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Kf6 c4 e5 a4 b5 c5 h5 g5+ Kf5 g6 d5 g7 b3 a5 h3 a6 h2 c6 d3 c7 b2 a7 b4 Ne2 Kg4 f5 d2+ Kf2 e3+ Kg2 h4 f6 d4 f7 b3 Ra4 e4 Na3 b1Q Ra5 d3 Rc5 b2 Qe1 d1R Qd2 Nf6 g8N Nfd7 Rb5 Bg7 f8N Nc5 Nc2 Ne6 Nc3 Nd7 Nh6+ Kf4 Rg1 h1N Be2 Nb6 Bf3 Ng3 Rf1 Bd7 c8N h3+ Kg1 Be5 Nd6 h2+ Kg2 Qa1 Ndf7 b1Q Ba3 Qb8 Be7 Qb7 Re1 Re8 a8N Qaa7 Rg1 Qab8 Re1 Qa2 Nb1 Ba1 Re2 Qa5 Ne5 Bc8 Nc7 Qaa8 Na6 Bd7 Nc5 Bc8 Kh3 h1Q+ Rh2 Qg1 Nc4 Qe1 Kg2 Rh7 Ng8 Rh3 Nh6 Nc7 Qa5 Bg4 Qd2 Ne6 Qa5 Nh1 Qd2 Qh4 Qa5 Rd2+ Kf1 Kg3 Ke1 Qf6 Qc3 Qf5 Qd4 Qff4 Rf2 Qf5 Qd8 Qff4 Rf1 Kh2 Rg1 Ng3 Rf1 Rf2 Kd1 d2 Nd3 Qf7 Be2 Rf6 Rff5 Nc5 Bf3 Rd6 Rb2 Qf6 Ra2 Ne6 Rb5 Qf7 Be2 Qf2 Bf3 Bg7 Rg5 Bf6 Rb5 Ba1
2N3b1/rkB2QN1/2qpn1B1/5BB1/1r3B2/Br4Rp/rq4bp/q2KRnb1 w - - 0 1 illegal: No possible last move
5r1r/3p3r/1pRnBN2/1B1B1N2/bB2Rqq1/1n4BB/1K3pn1/Q1bk2qn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 c4 Ke5 Kc2 Ke4 h4 g5 e3 f5 c5 b6 h5 f3 c6 d3+ Kb2 f2 h6 d2 h7 b3 c7 g3 a5 g4 a6 f4 a7 f3 Ba6 f1N Rh5 g2 Kc3 b2 Rh4 f2 Nf3 g1Q Bb5 Nc6 Nd4 Nge7 Nf5 Ba6 c8B Ng3 Bb7 Nh1 Qa4+ Kf3 e4 d1Q e5 g3 e6 g2 Re4 Nc8 e7 Nd6 e8B Bh6 Bf4 Qb8 Bg3 Nd4 Bf7 Bc1 Be6 Nb3 Bbd5 Bb7 Ra2 Bc6 Qd4 Rf8 h8B Qc7 Bhe5 Rh8 Bf6 Raf8 a8B Qe2 Be7 Qed1 Bf1 Ba4+ Bac6 Qb8 Bcb5 Qe2 Na3 b1R Nc4 Ra1 Nce3 Rh7 Qb4 Rfh8 Rc2 Qf8 Ng7 Qf4 Ng4 Rf8 Nf6 Rb1 Rd4+ Ke3 Rc4 Qeg4 Qa3 Ra1 Bf3 Rfh8 Bh4 Qgh2 B1e2 Nc8 Bbc6 Bb5 Bb4 Nd6 Bcd5 Ra2 Qb2 Raa8 Qa1 Raf8 Bg3 Ba4 Rd4 g1N Bg2 Nf3 Bh3 Qg2 Bb5 Nh4 Re4+ Kf3 Nf5 Qg1 Qb2 Ng2 Qa1 Bd2+ Kb2 Be3 Rcc4 Ke2 Qa3 Kd1 Rc6 Bd2 Qa1+ Bc1+
3n1Nn1/K2q1b1N/b3R1pB/Q3B1n1/1bR2p2/B1n2p1B/1nrn1r2/k1BB4 w - - 0 1 illegal: No proof kernel
1n3qR1/b3p1b1/RRr1p1pr/8/3b1Rbn/Q3rNr1/2k1Br1N/B3R1KR w - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 g4 axb4 e5 h5 e6 hxg4 Qe2 fxe6 Qf3 Nh6 Qd1 Ng8 h4 Kd7 f4 Kc6 Kf2 Kb5 d4 c5 d5 g6 a3 g3+ Kg2 b3 f5 Ka4 d6 b5 d7 c3 h5 b4 f6 c2 h6 c4 f7 c3 h7 b2 Ba6 Kb3 a4 Bg7 f8R Nh6 a5 Bb7+ Nf3 Nf5 Kf1 g2+ Kf2 g1B+ Kf1 Ba7 Kg2 Nh4+ Kh2 Bgd4 Rg8 Qf8 d8R Be4 Rf1 Bf5 Be2 Bg4 Qd3 Bg7 Bh6 c1B a6 Bce3 Rd6 Bed4 Qe3 Kc2 Kg1 b3 Nbd2 b1R Rb6 b2 Nh2 Rd1 Ndf3 Rd2 Rae1 b1R Bf4 Rb3 Be5 Kb2 Rf2 c2 Qd3 c1R Bf6 Rb5 Qa3+ Kc2 Be5 Rb3 Bf6 Bc5 Ba1 Re3 Rff1 Bcd4 Rf2 Nd7 Rff1 Rc8 Rf2 Rcc3 Rff1 Bb8 a7 Rc6 a8R Ba7 Rf2 Rb1 Rff1 Rbb3 Rf2 Bb8 Raa6 Ba7 Ne5 Nb8 Rf4 Rb5 Nef3 Rh5 Bc4 Rh6 Bf1 Rf2 Be2 Qc8 Rd8 Rf8 h8R Rf5 Rhg8 Ra5 Rd5 Qf8 Rh5 Rg5 Nf1 Nf5 Rh1 Nh4 N1h2 Bf5+ Ng4 Ng2 Nge5 Rg3 Nh2 Bg4 Nef3 Nh4+
2N3n1/1bB5/1B5B/B2BK1rr/1b3pp1/1rQ1p1kn/B1Rq1bnr/R2N2b1 w - - 0 1 illegal: No possible last move, all moves rejected
r1nb1kBB/3Kr1r1/2B5/1r6/BRR2q1p/B1nbN3/1Nb2pp1/3B1qQb w - - 0 1 illegal: No possible last move, all moves rejected
2qkN3/3B1BB1/3n1q2/N1q1B1p1/Rr5n/2p1B3/r2q1Bnp/2QnbbRK w - - 0 1 illegal: No proof kernel
1RQ5/2p2Br1/R1bb1kpK/p2Rnr1q/R2NRN2/6q1/nbrB3R/6rb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 d4 f5 b4 a5 e4 c3 h4 g6 h5 a3 h6 f3 Ke3 a2 Kf4 f2 Kg5 f4 b5 f3 h7 c2 d5 g3 e5 g2 e6 Nc6 b6 Nh6 b7 Ng4 b8R Qd6 Rh2 Nb4 Qd2 Rg8 h8R Bd7 Bc4 f1Q Ne2 g1R Na3 f2 Nf4 Qh3 Nb5 f1B Nd4 Rg7 Qd3 Qg3 Bd2 c1R Qf5 Ne5+ Kh6 Qc5 Qh3 Be8 d6+ Kf6 e7 Rc2 d7 Bg2 d8R Bh1 Rd5 Bc6 e8R Bd6 Qc8 Ra6 Ra8 Rb6 Ra6 Rb5 Re1 a1B Re4 Na2 Rhg8 Nd3 R8e5 Bc3 Rg5 Ne5 Rg4 Ba1 Qb8 Qca3 Rc5 Rcc1 Nde2 Qge3 Rg3 Nd3 Bf7 Bb2 Nd4 Qe2 Qb7 Rc3 Rb8 Rc2 Qc8 Qf3 Rgg5 Qg3 Rc4 Qc5 Ra4 Qd5 Re8 Qdf3 Rge5 Qd1 Re4 Rf5 R8e5 Qdg4 Rc5 Ne5 Rd5 Qh5+
1q3qN1/b1p1BN2/B4R2/K1N1nbp1/1rNQ4/1q1q2R1/Npn1kp1N/2r2r2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Kf6 Kd2 Kf5 h4 Ke4 e3 b5 d5 g5 h5 f5 h6 c3+ Kc2 f3 Kb3 f4 d6 f2 h7 c2 a5 g3 a6 f3 d7 g2 a7 Na6 Rh3 Nf6 Rg3 Bc5 Ba3 Rb8 a8N c1R Nb6 Qf8 d8N Nd7 Nc4 Ne5 Nb7 Ba7 Ra2 Rg8 h8N Bf5 Nf7 Rg6 Be2 f1Q Qd6 f2 Nf3 g1Q Nh2 Re6 Qb6 Rd6 Rc2 Rdd1 Nc5+ Kd5 e4+ Kd4 Bd3 Qgg2 Rb2 Qh3 Nc3 Qe2 Na2 Rf1 Rc2 Qd2 Rc3 Qhh8 Be2 Rb7 Rcf3 Qd3+ Kb2 b3 Rf4 Bh3 Rf6 Bf5 Bb4 Qb8 Ka3 b2+ Nc3 Ng4 e5 b1Q e6 Qhf8 e7 Ne5 e8N Qbc2 Rc6 Qb1 Nf6 Qbc2 Ng8 Qb1 Ba5 b4+ Ka4 b3 Na2 Nb4 Rf6 Nc2 Bb4 b2 Ka5 Qb3 Na4+ Ke4 Be7 Kf4 Qd6 Rb4 Qd5 Nd4 Nc5 Q1d3 Qd7 Nc2 Ne3 Qd1 Ba6 Qdd3 Nc4 Nf3 Nce5 Ke3 Qd4+ Ke2 Nc4 Ne5
N2b1NRN/1Nb3q1/1Nrppk2/1Q5p/2B1bB2/1np1Rrpr/2q2n2/N3K3 w - - 0 1 illegal: No proof kernel
6N1/4bpb1/1N1Rp1p1/p2N2n1/p1BN1p1Q/RrB5/Nr1Nqn2/kbn3K1 w - - 0 1 illegal: No proof kernel
2BN4/4N3/1B2NbNR/B3pr1q/1KbRq1b1/4pq1Q/2B1k1r1/4brn1 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 b4 a5 h4 gxh4 c3 dxc3 Bf4 a4 Bd2 Nc6 Bc1 Na5 bxa5 Ba6 Qd6 Bb7 Qd1 Bc8 f4 Kf7 g4 Ke6 g5 Kf5 a6 d5 g6 h5 b6 e3 g7 Ke4 b7 d4 b8N d3 f5 h3 f6 d2+ Ke2 h2 a7 c2 f7 a3 Bb2 c1R Bc3 a2 Nh3 h4 Rg1 h1Q Ba5 Nh6 g8B Ng4 Nc6 Be6 Nf4 h3 Ng6 h2 Bh7 Ne5 Bh3 Nf3 Qf1 Qd5 Nd8 Qh5 Nc3+ Kd4 Bg4 Rg8 Qh3 Rf1 Rd1 a1B Nd5 Rb8 a8N Rb5 Rg3 Ke4 Rg1 Bf6 Nac7 B8g7 f8B Bh8 Nb6 Rf5 Nbd5 Bh4 Bg7 Be1 Bd4 Bf6 Bdb6 Bf7 Rg2 e5 Nde7 Bd5 Nce6 Rg7 Ra1 Bc4+ Kd1 Kd3 Ra4 Ng1 Rb4 Ke4 Kc2 d1B+ Kb2 Kd3 Ka3 Be2 Rf2 Qa8 Ra4 h1Q Rh2 Qhf3 Rh1 Ba2 Rc4 Bd1 Rd4+ Ke2 Rh2+ Bf2 Rh1 Bc4 Kb4 Qe4 Ng5 Rf4 Bc8 Rf5 Nge6 Rg8 Ngf8 Rg2 Nfg6 Qhh4 Qg3 Qhg4 Rh6 Qh5 Qh3 Be1+ Kc5 Qff4 Bg8 Bd5 Ng7 Kf2 Bge6 Ba2 Bb3 Bg4 Nge6 Qff3 Bc2 Ke2 Kb5 Bc4+ Ka4 Beh4 Kb4 Be1+
2n1N3/Kp4pN/3R1N2/nB2BR1p/1kB2r2/1p1nN2b/rqQq1q2/6B1 w - - 0 1 legal: proof: d4 a5 f4 e5 b4 exf4 c4 d5 cxd5 axb4 Bd2 c6 Bc1 c5 h4 cxd4 h5 f5 g3 f3 h6 f4 Rh2 f2+ Kd2 f3 Bb2 Qc7 Rh1 Bd6 Ba3 Bf4+ gxf4 Qd7 Bb2 Qh3 Ba3 Qxh6 Bc1 Qh2 Kd3 Ke7 Kc4 Kd6 Kb5 h5 Kb6 d3 a4 b3 e4 d2 e5+ Ke7 a5 Ra7 f5 Qh4 f6+ Kd7 a6 Qa4 e6+ Kd6 f7 Qa3 f8N Qa4 e7 Bf5 e8B Bg4 Nh3 Nc6 Bb2 Qa3 Nd7 Qa2 Nf6 Nce7 Ng5 Rh7 Nc3 Nh6 Qc2 d1Q Beb5 Qd2 Bfc4 f1Q Nd1 f2 Ne3 Bh3 Rd1 Rh8 Ngh7 Nf7 Rg1 Rd8 Rg5 Rf8 Rf5 Ne5 Bd4 Raa8 a7 Nd3 Bc3 Qb2 Bd4 Rac8 a8N Rc7 Ka7 Nc8+ Kb8 Rcf7 Be5+ Kc5 d6 Kb4 d7 Qfe1 d8B f1N Bdc7 Qef2 Bb6 Re7 Bbd4 Re6 Nc7 Ra6 Nce8 Ra2 Ng2 Ne3 Ba7 Nd5 Ne3 Nde7 Bb6 Qdc3 Ba7 Nc6+ Ka8 Na5 Bb6 Nc5 Rd6 Nd3 Bbd4 Nb6+ Ka7 Qcd2 Bh2 Rf7 Bg1 Nc8+ Kb8 Rc7 Be5 Rc5 Ka8 Rd5 Kb8 Rd4 Ka8 Rf4 Kb8 Nb6 Ka7 Nc8+
q1B2N1r/2R1RB1K/B5r1/2nr4/3b1nn1/q2r2r1/Q1n1BqN1/R3Rqk1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h6 Qd3 b6 Be3 Bb7 Nb1 Be4 Bg5 f4 Qd1 Bf5 gxf5 hxg5 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kd3 Ke5 a4 b5 e4 g4 c4 g5 h4 g3 a5 f2 a6 g2 a7 g4 f6 g3 c5 f3 c6 Kf4 h5 b3 h6 b4 h7 b2 e5 b3 c7 Nd7 c8B Nh6 e6 Bg7 f7 Ng4 e7 Rg8 h8R Nc5+ Kd2 d3 e8B d4 Na3 b1N+ Kc1 Ke3 f8R d2+ Kb2 d3+ Rf6 Qd6 Ne2 g1N Bc6 g2 Nd4 Nh3 Rf7 g1R Rh6 Nf4 Be8 Rg3 Be2 f1Q Rc7 Kf2 Nc2 Na3 Kc3 b2 Ne1 b1Q Re6 Nc2 Ree7 Qb7 Qb1 d1R Ng2 d2 Bf7 Bh8 Ba6 Rg6 Qa2 Rb8 Be2 Qa8 Kc4 Bg7 Ne6 Bd4 Nf8 Qg1 Ba6 Qh2 Re1 Rc8 Ne6 Rcg8 Nf8 Qg1 Bc8 Qf1 Ba6 Kg1 Bc8 f2 Ba6 Qb7 a8B Qb8 B8b7 Qa8 Bb5 Qda6 Bc8 Qa3 Bba6 Rb1 Bab7 d1R Ba6 Rdd3 Nh4 Rb7 Ng2 Nfe6 Kd5 Rb5+ Kd6 Ra5 Red7 Nf4+ Ke7 Kh1 Ke8 Qg1 Re7 f1Q Bd5 Qgf2 Kf7 Kg1 Bde6 Nb7 Bb3 Rd5 Bbc4 Rh8 Bb3 Nc5 Bbc4 Rf6+ Kg7 Rg8+ Kh7 Rfg6 Bb3 Rdd6 Bbe6 Rd5 Bf7 Rh8#
2R3n1/RB1q4/1QB1nnbN/p1R1qN1n/3R2n1/kb3r1N/rr1K4/b6N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 e4 Ke7 b4 Kd6 c4 f5 h4 g5 b6 g2 b7 g3 h5 g4 h6 d3 h7 d2+ Ke2 f4 b5 Kc5 e5 Kb4 c5 d5 e6 f3+ Kd3 d4 e7 f2 e8R Bg7 b6 Qd7 Qe2 d1N c6 Ne3 Nh3 g1N c7 g2 Re5 g3 Nf4 Nf3 Rh2 g1N Rhh5 g2 Nd2 Ng4 Nh3 Ng5 Rd5 Ne6 Qe3 Ne2 Ne4 g1Q Ng3 N2f4+ Kd2 d3 Bg2 f1R Nh1 Qh2 Rd4+ Kb3 Qg1 Rf3 Rc5 Nh5 Ra6 Qe5 Raa5 Nc6 b8R Nce7 b7 N8f6 Qf2 Re8 h8N Neg8 Nf7 a6 Nh6 Rf8 Kd1 d2 Qg1 Rf2 Bc6 Rf3 Qe3+ Kb2 Ke2 d1B+ Kd2 Bc2 Qg1 Ra7 Ra8 Bg6 b8N Bb7 c8B Re8 Bb5 Bbe4 Nc6 Bc2 Bb7 Rb8 Ne7 Kb3 Ba4+ Ka3 Nef5 Bh8 Bbc6 Rb2 Rc8 Ra2 Qb1 Rb7 Qb6 Rb8 Bb7 Bg7 Rab5 a5 R5c7 Bh8 Rbc5 Bg7 Bac6 Bh8 Ba8 Bg7 Ra7 Bh8 Qc7 Rbb2 Qb6 Qh2+ N3f2 Nh7 Ke2 Rb1 Rb4 Ba1 Rd4 N7f6 Kd2 Rbb2 Bab7 Qe5 Nh3 Bb3+
5Q2/q1k2q2/3pRKB1/Nqq1BNn1/1r1rNnN1/b5Rn/4n2B/1rBb4 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 g5 h4 f5 e4 f3 Kg3 f4+ Kf2 g3+ Ke1 g4 Kd2 g2 Kd3 b3 c4 f2 b6 b2 b7 f3 h5 g3 c5 Qe7 c6 Kd8 h6 Nf6 e5 Ne4 h7 Na6 b8B Ng5 e6 Nc7 Nd2 b1R Rh3 Qc5 Ne4 Nd5 Ne2 g1N Ra6 g2 N2g3 Ne2 Nf5 g1N Bh2 Rab8 Rg3 R8b4 e7+ Kc7 Qd2 Rg8 h8B N1h3 Qb2 Rg6 Qa3 Rd6 Be5 Bb7 Bg2 f1Q Bh1 f2 e8N+ Kc8 N8f6 Kc7 Ng4 Ndf4+ Kd2 d3 Bf3 Qa5 Ke3 d2 Rb6 d1Q Ra6 Kc8 c7 Rdd4 Re6 Qc2 Bh1 Bc6 Bg2 Kb7 c8N Qa7 Nb6 Qc5 Nc4 Ba4 Na5+ Kc8 Bh1 Bd1 Bf3 Nc3 Bg2 Qfb5 Bf3 f1Q Be2 R4b3 Bd3 Nce2 Qb4 Qcc7 Qe7 Qcc5 Qf6 Bd6 Qf8+ Kc7 Nfh6 Nh5 Nc3 Qcb4 Bg6 R3b2 Ne4 Qf7 Bg7 Q4c4 Nf5 Ba3 Bf6 Qcc5 Be5+ d6 Ngf6 Nh7 Kf3 Qbb6 Kg4 Qbb5 Kh4 N5f4 Ng4 Nd3 Kh5 Rb3 Kh4 Rbb4 Kh5 Ndf4+ Kh6 Qfe8 Kg7 N7g5 Kf6 Qf7+
qrb1R2K/1kbr2n1/1Nq1NN2/1q1b1Np1/R1R3bb/3R4/1B2b3/1bBQ4 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 Nh3 h5 Qd3 f5 Qd1 f3 Ng1 f4 Bh3 Nc6 Kf2 Nce7 Ke1 Nf5 gxf5 Bc5 Bg4 hxg4 Qd2 Be7 Qd1 Bf8 Kd2 g5 Kd3 b5 Ke4 d5+ Ke5 Kd7 a4 Kc6 h4 d3 e4 d4 c4 d2 c5 g3 a5 f2 f6 f1Q a6 f3 h5 f2 h6 b3 a7 d3 f7 g2 h7 b2 Rh4 b4 Ra2 b3 Rf4 Kb7 Ra4 Ne7 Kf6 Rb8 Nf3 g1B a8R Qg2 e5 f1Q e6 Bf2 Rfc4 Bh4 Nc3 b1B Nd5 Nf5+ e7 b2 Nd4 Ng7+ Nf5 Ba2 Nb6 Rg8 h8B b1B R8a6 Qdd5 e8N Bd6 f8N Qc6 Ne6 Bc7 Kg6 Bb3 Nf6 Rd8 Kh7 Rd7 Ra3 Qfe2 R6a4 Qe5 Re4 Bd5 Rec4 Qb2 Kg8 Ne8 Bg7 Qbb5 Kh8 Qf3 Nh7 Qh1 Bgb2 Ng7 Nf6 Qg2 Qg1 d1B Rb3 d2 Rd3 Qa6 Qe1 Bg4 Qd1 Qcb5 c6+ Ka7 Qc2 d1B Qb3 Bde2 Qd1 Bcg3 c7 Kb7 Nf8 Be5 Ne6 Qa8 Rd2 Rf7 Rc6 Bd7+ c8R Bda2 Rcd6 Qgc6 R6d3 Bc7 Rc2 Bd5 Re8 Bc8 Rcc4 Rd7
r2b3N/2BrRqk1/1n1n1q2/1qB2R2/N2B1K1Q/1Rn1p2r/2q2B2/R1nq4 w - - 0 1 legal: proof: d4 c5 g4 cxd4 f4 h5 e4 hxg4 f5 b6 Bc4 a5 b4 axb4 Be6 fxe6 Na3 e5 Nb1 Bb7 f6 Bd5 Nc3 Be6 Nb1 Bf5 exf5 e4 Ke2 Kf7 h4 e5 c4 g5 a4 d5 h5 g3 h6 e3 Kf3 g4+ Ke2 d3+ Ke1 b5 a5 d4 a6 d2+ Ke2 g2 c5 b3 a7 e4 h7 b2 c6 b4 c7 b3 c8R g3 Qe1 d1R Qa5 Nh6 Nc3 b1Q Qa3 b2 Rc5 Be7 Na4 Nd7 Qb4 Nb6 Nh3 g1Q Nf4 g2 Ng6 Qh2 Re1 Qg8 Ra3 Bd8 Rb3 Qc7 Bd2 g1Q Bc3 Qe8 Qc4+ Qe6 Ba5 Qg5 Re5 Qc1 Rf1 b1Q Be1 Qc5 Bf2 Qb5 Re1 Rg8 h8B d3+ Kf1 d2 Ke2 Rg7 Rd5 Kg8 f7+ Kh7 f8B Nf7 f6 Nd6 f7 Qcc2 Rf5 Qgf6 Be7 Rc1 f8B Qef7 Nc5 Kg8 Na4 Rh7 Bh6 Rd1 Bf4 Rh3 Bg7 Qba1 Nh8 Qad4 Be5 Qa1 Bd4 Qab1 Bh6 Qa1 Bf4 Kg7 Kf1 e2+ Kg2 Rb8 a8R e3 Ra7 Ra8 B4g3 Qab1 Kf3 Qa1 Rh1 e1N+ Kf4 Nd3+ Kg4 Nb4 Kf4 Na2 Rb7 Nc1 Rd7 Ne4 Bec5 Nd6 Rb7 Rg1 Re7 d1N Qb4 Nc3 Kg4 Ne8 Be5 N1a2 Kf3 Qac1 Qh4 Rd1 Kg4 Rd6 Bed4 Rd7 Bc7 Nd6 Kf4 Q1d2 Rhb1 Nc1 Ra1 Qdd1
7B/1q5B/b2KN2r/Nn1R1b2/R2QN3/1p5R/nb1q1pRr/N1kqn1r1 w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 h5 d4 b5 e4 f5 g5 c5 d6 f3 d5 c4 d7 a2 g6 c3 d6 c2 g7 Kb3 Rh2 b4 Qe2 h3 Bg5 Kb2 Qe1 b3 Re2 f2 Nf3 h2 Be7 h1Q Nh4 f4 Nd2 c1Q Nf5 h4 Re3 f3 Qd1 h3 Nd4 h2 Nc2 Ra6 Bd3 f1B Bf6 f2 Rh3 Ne7 g8R Nd5 Rg2 Bg7 Ke6+ Nc3 e5 Rc6 Bh7 Nb5 Ne4 Na6 Kd5 Qa5 d8R Bf5 d7 Qb1 Qd3 Kc1 e6 Qd2 e7 Nb4+ Ke5 Be2 e8N Qhd1 Qd5 h1R N8d6 Rg1 Nb7 Bc4 Na5 Ra6 Nc5 Qf3 Qd4 Qb7 Ne4 Be2 Bg8 Rh4 Bh7 Rc6 Re3 Rh2 Rh3 Bh8 Bg7 Rh6 Bf6 Nc7 Kd6 Ba6 Re8 Bg7 d8N Bh8 Re5 Nb5+ Kc5 Bg7 Ne6 Bh8 Qd6 Bg7 Rd5 Bh8 Bd8 Bb2 Bf6 Kd1 Bh8 Qc1 Rb1 a1N Qe5 Na2 Qd4 Na7 Kd6 Nb5+ Ke5 Nac3 Ne1 Nc2 Ra1 Qb1 Ra3 Na2 Ra4 Na7 Kd6 Qc1 Nd3 Ne1 Nb4 Qb1 Nc2 Nb5+ Ke5 Qc1 Na1 Qc2 Rf3 Kc1 Rh3 Nc7 Kd6 Qdd1 Rg8 Qcd2 Rg2 Nb5+
1r1B2K1/4q2N/n1Qb2N1/3q1b1R/2pBR3/4pnRq/2kN2R1/2nrrNb1 w - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 h5 c4 dxc4 Be2 g5 Bf3 gxf4 g5 Qd5 Be2 Qd8 Bg4 hxg4 Ke2 Kf7 h4 Ke6 b4 Kd5 d4 c5 b6 e5 h5 a5 h6 a4 h7 c3 b5 Kc4 g6 g3 b7 g2 d5 c2 d6 Kb3 d7 a3 b6 f3+ Ke3 f2 g7 f1R Bb2 a2 Rh5 c4 Qf3 c1N Ne2 Nh6 g8N Re1 Bd4 Bd6 Nd2+ Kc2 Nf6 Rd1 Ng3 Rg1 Ngf1 Na6 b8R Nf7 b7 Re8 h8N Ng5 Ng6 Re6 Rb1 a1Q Rb3 Qa3 Nh7 Qe7 Qf6 Nf3 d8B Bd7 Rc8 Rb8 Rc6 Bc8 Rc7 Qf7 Re7 Qg8 Rg7 Re8 Re7 Bf5 Qe6 Rh1 Qd7 Qd5 Qc6 Rc8 b8R Rg1 Rbb7 Rb8 Re6 Rh1 Rg7 Re7 Kf2 g1B+ Kg3 e3 Rg8 e2 Re3 Bd3 Kg4 e1Q Re2 e4 Rg2 Re8 Ree5 Qh4+ Kf5 Qh3+ Kf6 e3 Kg7 Bf5 Re4 Rb1 Bh4 Reb8 Bd8 Qac5 Kh8 Qa7 Ne5 Qe7 R8g3 Nb3 Ng6 Rd1 Bf6 Nc1 Bd4 Bf2 Nh2 Rhe1 Nhf1 Qa5 Kg8 Bg1 Qe8 Qb5 Qc6 Qd5+
KR2N1b1/3R1BN1/pn3nNb/4rq1r/1pR2qrr/k2B4/4Q1N1/1b4bR w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 a4 b6 a5 bxa5 b4 Qd7 b5 Qe7 Ba3 Qd8 Bb4 axb4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 d4 h3 e4 c4 g4 c3 g5 c2 d6 c1B Kd5 a6 g6 f3 b6 f2 g7 f4 b7 f3 e5 h2 Ra2 h4 Kc5 h3 d5 Qg5 Kb6 Rh4 Ne2 Qf5 Rc2 Bh6 Na3 Rg4 Rc4 Nf6 Nf4 Ra7 Be2 f1Q g8B f2 Ng6 Qf4 Bd3 Bfg7 Rg1 h1R Bf7 h2 Nc2 Qh3 Re1 f1B Ne3 Bg2 Qc2 Be4 Qe2 Qh5 Ng2 Qhf5 Rd1 Re1 Rb1 h1R Ra1 Rhh4 e6+ Kd8 e7+ Kd7 e8N Reh1 Re1 Rh5 Qa2 R1h4 Rh1 Ra8 Bf1 Bb1 Qe2 Nc6 b8R Na7 Qe4 Bb7 Bd3 Bc6 Qf3 Bb5 Kb7 Nc8 Qd1 Nb6 Qe2 Ba4 Rbc8 Bb3 R8c7+ Kd8 d7 Rc8 Ka7 Bf8 Rb7 Bc5 Rb8 Bg1 Kb7 Na4 Ka8 B3a2 Ne5 Ke7 d8N Rc5 Ng6+ Kd7 d6 Re5 Ne6 Nb6+ Ka7 Bb3 N6g7 B3a2 Rd4 Kc6 d7 Kc5 Rc4+ Kb5 d8R Ka4 Rd7 Ka3 Rc3+ Ka4 Bfc4 Nc8+ Ka8 Bb3 Bg8 Ka3 Rc6 Bd1 Ba2 Bb3 Rc1 Bg8 Bf7 Re7 Rcc7 Re5 Rc4 Nb6+
1rRN2k1/q1rr1q1q/2p4K/1nq1BRB1/1QrN4/1pq1Bb2/4nN2/B4N2 w - - 0 1 illegal: No possible last move, all moves rejected
6kn/Qp1qbb2/1q2pn2/Bb2K3/6Nr/R1n1nNBN/B3p3/2B1R1rN w - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a5 Qc2 axb4 Qb3 Ra5 Qd1 Ra8 h4 g5 e4 gxh4 a3 bxa3 Rh2 fxe4 Rh3 Bg7 Rh1 Bf8 Ke2 Kf7 Ke3 c5 Kf4 h5 g4 e6 d4 h3 d6 h4 d7 c4 d5 e3 d6 c3 g5 a2 Ne2 h2 Ke5 c2 f4 h3 f5 Be7 f6 Qb6 d8B Nh6 g6+ Kg8 g7 Bd7 Bc7 Be8 d7 Bf7 d8B Rh7 Ng3 e2 Bg2 Rh8 Rf1 h1Q Re1 h2 Bd5 Qf1 Qd3 h1B Qd4 Ra7 Bb3 Bc6 Nd2 Bb5 Nf3 Rh7 Nh1 Nd7+ Ke4 Ra4 Bg3 Rb4 Bd5 Rb1 Qa4 Qff2 Qa7 Qc6 Ba5 Qfb6 Bb2 c1N Kf4 Nc5 Ke5 Qd7 Ba3 Ne4 Bc4 Nb3 Bc1 Nbc5 Bd5 Rh8 Bc4 Na4 Bb3 Kh7 g8N Nac3 Bc4 Be8 f7 Nf6 f8N+ Kg7 Bg5 Bf7 Ng6 Rh7 Nf4 Rc1 Rb1 a1N Nh3 Nc2 Ra1 Ne3 Ba2 Kh8 Rd1 Rb1 Rd3 Rg1 Re1 Nhf5 B5f4 Rh4 Nh6 Nd6 Ng4 Kg8 Bh6 Ncd1 Ra3 Nc3 Kf4 Bh5 Ke5 Nf7+ Kf4 Nh8 Ke5 Bf7 Bhf4 Ned1 Bc1 Ne3
2B1r3/R1b2Kq1/1Rq1B2b/p2NRp2/5Rb1/p1NbB3/rn3B1k/b1Qq4 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 exf6 Bf4 f5 Bc1 f4 h4 g5 g3 Na6 Nh3 Nc7 Ng1 Ne6 Rh3 g4 Rh1 Ng5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 h5 e4 d5+ Kb5 f5 Kc6 h4 c4 h3 c5 d3 b5 h2 b6 d4 g6 d2 b7 Kf4 b8B+ Qc7+ Kd5 d3 e5 g2 e6 Kg3 c6 Ba6 g7 Nh6 g8R Nf7 e7 Nd6 Ke6 Nc4 e8B Nb2 Nh3 g1B Bd7 Bh6 Re8 Bd4 Bc8 a3 Nf4 Qg7 c7 Rg8 Qc2 d1B Nd5 d2 Nbc3 Bd3 Rb1 a5 Ba7 B1e2 Re7 d1Q Be3 Rb8 Bg2 Re8 Re1 h1Q Qc1 Kh2 Bf2 Be5 Bae3 g3 Be4 g2 Bf3 Qh8 Kf7 g1B Be6 Rbd8 c8R Bc7 Rf1 Rd7 Ra8 Qe5 Be4 Bg4 Ra7 Rd6 Bc8 Qh8 Re5 Rc6 Na4 Rc2 Nac3 Qg2 Nb6 Re2 Bd5 Rd2 Bde6 Qc6 Nbd5 Rc2 Be1 Re2 Rf4 Bf2 B3d2 Bd4 Bf2 Nc4 Na2 Ba1 Bde3 Rb2 Nac3 Ra2 Rb3 Nb2 Rb6 Qg7#
3N4/1q2p1RQ/3RRq1K/1Bqr1Bpn/2NN2p1/N2Rp3/2b2n1b/2kq3n w - - 0 1 legal: proof: d4 a5 g4 b5 e4 c5 b4 axb4 f4 cxd4 g5 h6 f5 f6 Be3 Ra3 Bf4 hxg5 Be5 fxe5 f6 Rf3 Qc1 Rf4 Qd1 Rf5 exf5 e4 Ke2 Kf7 h4 d5 a4 g4 c4 g5 h5 d3+ Ke3 b3 h6 b2 a5 b4 c5 d2 c6 b3 c7 Na6 h7 Nc5 a6 Bg7 a7 Qf8 a8N Nd3 Rh3 Nf2 Na3 b1Q Nb6 b2 Bb5 Qc1 Qc2 b1Q Nf3 Nh1 Nbc4 d1N+ Kd4 Qb4 Ke5 Ndf2 Nd4 e3 Rh6 Qcb2 Rd1 Qc5 Rd3 Ba6 c8B Qb1 Bbd7 Qb7 Rg6 Bb5 Rh6 Ba4 Bb5 Qd8 Qb1 Qdb6 Rg6 Bc2 Bcd7 Nh6 Bc8 Rf8 h8R Rd8 Rh7 Ng8 Rhh6 Bh8 Rg7+ Kf8 f7 Nf6 Rhg6 Nh5 Rd6 Q6a6 Ke6 Qab6 Rg6 Be5 Rf6 Kg7 f8R Bh2 Rg8+ Kh7 Kf7 Q6c6 Rfe6 Qca6 Ne2 d4 f6 Kh6 Rg7 Rd7 Rd2 d3 Nd4 Qab6 Rd1 d2 Kg8 Q6c6 Kf8 Qf3 f7+ Qf6 Kg8 Rd8+ f8N Rd7 Rb6 Rd5 Rbd6 N5g3 Bcd7 Kh5 Kh8 Kh4 Kg8 Nh5 Bc8 Bb3 Kh7 Kg3 Qg6 Bc2 Kh6 Qf5 Qh7 Kf4 Rf6 Ke4 Nfe6 Kd3 Nd8 Kc3 Rfg6 Qf8 Bf5 Qf6 Re1 d1Q Re2 Qf8 Rge6 Qf7 Rd2 Qf8 Na5 Kb2 Rd3 Kc1 N5c4 Qf6+
1K5k/6Np/r4nb1/b2pB1pB/2RRpn1r/p5QB/3R2pq/1R1N1q1B w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 g4 b5 e3 dxe3 h5 bxa4 Ra3 Qb6 Ra1 Qg6 hxg6 f5 Rh4 fxg4 Rh2 Bh6 Rh1 Bf8 Ke2 d5 Kd3 a5 Kd4 e2 Ke5 e1Q+ Ne2 a3 b4 e6 f4 a4 c4 g3 b5 a2 c5 a3 g7 Kf7 c6 Ra7 f5 Rb7 f6 Kg6 f7 Qc3+ Nd4 Bd7 c7 Na6 c8B Be8 b6 Bc6 Rh4 Ba4 Bf4 Qc2 Qf3 Nb4 Bg2 Ne7 Kd6 e5 g8B Kg7 Nf5+ Kg6 Bh1 g2 Qg3 Be8 Ng7 Nd3 Bh3 Rb8 b7 Qc7+ Ke6 Ra8 b8R Ra4 Nc3 Rd4 Re1 a1Q Re2 Qf1 Rd2 Ra4 Rb1 e4 Nd1 Ra6+ Bd6 Qb8 Rf4 Qc7 Rff2 Nf4+ Ke5 Qb6 Rfe2 Qbg1 Rd4 Qh2 Red2 Kh6 Bc7 Kg6 Bb6 Kh6 Kd6 Kg6 Kc7 Kh6 Nh5 Bg7 f8R Bg6 Bge6 Ng8 Rc8 Nf6 Beg4 Rf8 Kb8 Rf7 Rc7 Bf8 Ng7 Bb4 Rc8 Ba5 Bc7 Rf8 Be5 Rf7 Ne8 Rf8 Rcc4 Rf7 Nc7 Kg7 Ne8+ Kh8 Be2 Re7 Bh5 Ree6 Ng7 Rec6 Ra4 Rc3 Rac4 Rf3 Qg4 Rg3 Qh4 Rg4 Qg3 Rh4
2Nb2n1/n2r1r1B/1RNrR1R1/1q1n1Qrk/2q4B/rr3r2/2NNR2b/2K2b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 Kf7 c4 Kg6 a4 b5 a5 g3 c5 b3 c6 f3 c7 b4 e5 g2 e6 f2 a6 d3 a7 d4 e7 b2 e8N b3 Ra4 f4 Ra2 f3 Be2 f1N+ Ke1 d2+ Kf2 d3 Rh3 Be7 Na3 b1Q Rh2 b2 Qc2 d1R Rh1 Nc6 Nd6 Ne3 Ne8 Qd4 Nd6 Bd8 Nf5 d2 Ne7+ Kh5 Qf5+ g5 Nc2 Rh7 Bd3 Ba6 c8N Rf7 Rh2 Bb5 Ra6 Qc4 Rb6 Nd5 Be4 Qa1 Bd3 b1R Bb2 Qa6 Bf6 Rb3 Be4 Rb8 a8R Na7 Nc6 Ra3 Bd3 Rbb7 Rb8 Qa5 Ra6 Rbd7 Rbb6 Rb1 Be4 d1R Be7 Kh6 h5 g4 Bh4 Rbb3 Bd3 Rd2+ Ke1 g3 Be4 Qab4 Bd3 Qbc5 Be4 Rd4 Bd3 f2+ Kd1 Q5b4 Nf3 g1B Nd2 g2 Kc1 f1R+ Be1 Rf3 Bh4 Bf2 Be4 Be1 Bd3 g1R Re2 Rg6 Re6 Bg3 Be4 Kh7 h6 Bh2 Bd3 Rg4 Be4 Rg5 Bd3 Kh8 h7 Kg7 h8R Qa4 Re2 Rgd6 Rh6 Qab4 Rhe6 Qbc5 R6e5 Kh6 Re6+ Kh5 Qf4 Q4d4 Bh7 Bd3 Qf5 Qb5 Rg6 Qdb4 Ra4 Qf4 Rae4 Qg4 Ree6 Qgc4 Rg2 Bf1 Rf2 Rfe3 Re2 Rf3
1k3b2/2nqbb2/B3BN2/rnB4K/1nr2r2/3n1Bbn/br3N1R/R1RR3Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc7 c4 g5 a4 b5 h5 f5 a5 b3 e5 b4 h6 g3+ Kf3 g4+ Ke2 d3+ Ke1 d4 e6 f3 e7 g2 Kf2 f4 e8R d2 h7 d3 a6 b2 a7 b3 c5 Nc6 Nc3 b1B Nge2 b2 Ne4 Nge7 N2g3 Qd7 Ra2 Nb4 c6 Ned5 Qc2 d1N+ Ke1 g1B Qg2 f2+ Kd2 f3 Nc3 Bh2 Ra3 Ba2 Nge2 g3 Qh3 g2 Ne4 g1B Nd6 Bg3 Qh6 b1R Bh3 f1R Be6 f2 Rd8 Nf4 Ne4 Nh3 Nf4 Nb2 Ke3 d2 Kf3 d1N Kg4 Nc3 Be3 N2d3 Nf6 Nb5 Kh5 Rb2 Bc5 Rc1 Ra6 f1N Ra4 Rg8 h8R Rc4 Rh2 Rg4 Ra3 Ne5 Nd3 Rgf4 Nf2 Ned3 Rc3 Bb7 Rc1 Ne3 Rg8 Ned5 Rg6 Rc8 a8B Kb8 Rg5 Ba6 Re5 Ndc7 Ree1 Be7 Ra1 Bb7 Rec1 Ba6 Nh1 Bd4 Nf2 Be5 Qh7 B5d6 Qe4 Bf8 Qg2 Bde7 Qh1 Na3 Bb7 Bb5 Ba6 Ba4 Bd5 B4b3 Bf3 Nab5 Re8 Bd6 Ree1 Bde7 Rg1 Rc3 Rgf1 Bg8 Rfd1 Ra3 Bb7 Ncd5 Ba6 Ra5 c7+ Ka8 Be3 Rb8 Rg2 Rb6 Rh2 Rc6 Bb6 Rcc4 Bc5 Qd6 c8B Kb8 N2e4 Ndc7 Be6 Qd7 Nf2 Bf7+
2q3b1/NB3q2/rR1B2rR/1nN2r2/3RK3/b1RnBn1n/rk1rq3/1r2B1Q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 b3 a7 e2 f6 e1Q c3 g4 f7 b4 h6 b2 h7 g2 Bh6 e4+ Kc2 d3+ Kb3 d2 Kc2 g3 c4+ Kd4 c5 d5 c6 e3 c7 e2 Bg7+ Nf6 Ra2 Na6 Rh2 Be6 c8R Nc7 Rb8 Qf2 Nc3 b1R Rb5 Qc8 Nh3 g1N Ra6 g2 Qe1 d1R Rc6 Nf3 Ne4 g1R Ra6 Rg6 Nc3 Ra1 Rc5 Nb5 Rb6 Ra6 Bh6 Ne4 Bg2 Neg5 Nf4 Nh3 Nd3 Bd6 f8B Bg8 Qg1 b3+ Kb2 e1N+ Bd2 Nf4 Rh6 Nh3 Rc7 Bc5 Bd6 Kc4 Bh1 d4 Rcc6 Qf1 Be3 Rd2+ Kb1 b2 Bg2 Rb8 a8R Kb3 Rc7 Ra2 Ra4 Ra8 Rc4 Bb4 Nc5+ Ka3 Bh1 d3 Rd4 Ra6 Bg2 Rf2 Rcc6 d2 Bh1 Nd3+ Kc2 Rfg2 Rc7 R2g5 Bg2 Rf5 Bh1 Nfg5 Bb7 Nf3 Rcc6 Be6 Rc7 Rd8 h8B Bg8 Bhe5 Qf2 Bg3 Qe2 Be1 Rd7 Bg5 Qee8 Be3 Qf7 Nd5 Rd8 Ne7 Rd7 Nc6 Rd8 Kd1 b1R+ Ke2 Kb2 Na7 Ba3 Ne4 Bh7 Rc3 Bg8 Nc5 Rd7 Bef4 d1Q+ Ke3 Qd2+ Ke4 Qe2+ Be3 Rd8 Bf8 Rdd5 Bd6 Nde5 Rdc4 Rd2 Rd4 Nd3
1b2q1R1/B2Bb1NK/b1q3bb/n7/r3NB2/1k1b1Q1N/1q1n1R2/qBr2rN1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 f5 a4 g5 a5 d5 e5 b5 e6 b3 e7 Kb4 e8B f3 Kg3 b2 h5 f4+ Kh2 f2 a6 d3 c5 d2 a7 g3+ Kg2 d4 Kf3 g2 Ke4 d3 h6 f3 c6 g4 h7 g3 c7 Be7 Kf4 Nf6 Kg5 Nc6 Kg6 Ne4 Nh3 g1B Nf4 g2 Bd7 Bh2 Be2 f1B Qc2 g1B Bf5 d1Q Be6 f2 Bd7 d2 Qd3 Qa4 Nc3 d1Q Ra2 b1B Qf3 Qe8+ Kg7 Bb7 c8N Qd5 Rd2 Qa1 Nd6 Rc8 a8N Ba6 Bd3 Na5 Re2 Qc5 Be3 Nd2 Nh3 Rf8 h8B Rf4 B3f5 Ka3 Kh6 b4 Nc7 b3 Be5 b2 Kh7 Kb3 Ne6 Ra4 B5d4 Qd5 Ba7 Bf4 Bg6 Bgh2 Rg1 Bh6 Rg2 Be5 Bf4 Be4 Bf5 b1Q Rg8 Qbb2 Ng7 Rcc4 Bg6 Qc6 Bgf5 Bd5 Be4 Bf7 Bb1 Rc5 Nde4 Bb8 Re3 Bfd3 Re2 f1R Rf2 Bh5 Ne2 Rcc1 Neg1 Bg6+
R1B1R2r/4K3/2BbQnrn/R3bq1k/1B1qN2r/1rR1b3/b4q2/q3N1bB w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kg6 f4 b5 a4 e5 c4 d5 a5 g3 f5+ Kh5 f6 g5 a6 g2 a7 b3 c5 b4 f7 g4 c6 b2 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1Q Qc2 d3 Qf2 g3 Ne2 g1B Nd2 b1Q+ Ka4 d4 Kb5 g2 Ra3 b3 Qf4 e3 Ra1 b2 Ra4 Nh6 Ra5 Bd6 f8R Qf2 Re8 Be6 c8B Ba2 Ne4 d2 Qf6 d1Q Bd2 d3 Rh3 Nd7 Nc1 e2 Qe6 e1B Bb4 d2 Rc3 Nf6 Kc6+ Be5 Bd3 Qdd4 Bb5 Qg4 Nd3 d1R Ba4 Qa1 Bb5 Rb8 a8B b1R Bab7 Bd2 Ne1 Bgh2 Ba8 g1B Bab7 Nd5 Kd7 Qgf5 B5c6 Nf6+ Ke7 Rb3 Ba8 Rb6 Bab7 Kg4 h5 Be3 Ba8 Nf7 h6 Kh5 h7 Nh6 Bab7 Rc1 Rd3 Rc4 Rc3 Rg8 h8R Ra6 Nd6 Ra8 Bh1 Rg6 Ne4 Bhf4 Bc6 Bd6+ Kd8 Bfe5 Rhf8 Ra7 Rg8 Rh7 Rgf8 Rh8 Rg8 Bc7+ Ke7 Qf1 B8b7 Bb8 Rd8 Qe2 Nd6 Qc5 Rge8 Qef2 Rc8 Bc7 Rca8 Rh4 Bc8 Qd4 Ne4 Bcd6+
2B1KR1q/3Nn3/Brbb4/bR5n/3n2qB/NQbn2Nr/3q1Brq/k3N3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 c6 b3 e5 b4 h6 b2 h7 b3 c7 Bb7 c8N Ne7 e6 Bc6 Bd3 f3+ Kf1 f4 Ra5 f2 Kg2 f1N Na3 Kc3 Bf5 b1Q Nc4 d4+ Nf3 d3 Qe1 b2 Qe4 d1N Nh4 f3+ Kg1 d2 N8b6 g2 Qe2 Qa2 Rb5 b1R Na3 Nf2 Qe3+ Nd3 Nd7 Ng3 Kh2 d1Q Rf1 f2 Nf3 Qad2 Ne1 Nh5 Qb6 g3+ Kh3 g1B Kh4 Rg8 h8B+ Bg7 Qe3 g2 Kg5 Bh2 Bg4 g1B Be2 Nd5+ Kg6 Ne7+ Kf7 Bd6 Qh3 Bd4 Bf6 Rg2 Bh4 Qh8 Qg3 Bf6 Qg8 Bd4 Ke8 Bb6 Bg4 Ba5 Bh3 Rb4 Bb2+ Kb3 Bd4 Qg4 Bc5 Kb2 Bb6 Nc8 e7 Ka1 Bc5 Bgh2 Be3 Bhe5 Bc5 Qf6 Qb3 Bc3 Be3 Qe5 Bb6 Qh2 Bd4 Na6 Bc5 Rb8 a8B Rb6 Bb7 Nb8 Ba6 Re4 Kf7 Re6 e8N Re3 Ng7 Ne7 Ke8 Rf3 Nf5 Re3 Rh1 f1Q Ng3 Qf6 Rf1 Qh8+ Rf8 Rge2 Bf1 Rg2 Bc8 Rf3 Bf2 Re3 Nh1 Rh3 Be2 Bb7 Ng3 Nbc6 Bd1 Ba8 Bf3 Nd4 Bfb7 Nd5 Ba6 Ne7 Bg1 Bb7 Bf2 Bc6
1b1K3N/4n1RN/3nn2k/RNq3bn/2q5/nRr4n/NB1Rn2p/rB2Qb2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 g4 d5 a4 e5 f4 h5 c5 b5 c6 e3 Kf3 d3 g5 h3 a5 h2 c7 h4 a6 e2 a7 e1B Nh3 d2 Ra4 e4+ Ke3 b3 Kd4 e3 Ke5 d4 Qe2 d1N Bb2 d3 Nf2 h3 Bc3 b4 Qa2 d2 Ba1 e2 Nd3 b2 Qb3 Bd6+ Kd5 Na6 Kc6 Nc5 Qc3 b3 Qc4 Ne6 Qd4 Qe7 Rb4 Ba6 c8N Ne3 Qe4+ Nf5 Na3 d1N Nb5 b1N Bb2 Bh4 Nc1 e1Q Bd3 Na3 Na2 Qe2 Bb1 Bb8 Ncd6 Nf2 Rd1 h1N Nf7 h2 Rd2 Qc5+ Kd7 Qec4 Qe1 Nh3 Ke8 Kh5 g6 Nhg3 g7 Nge7+ g8R Nd6+ Kd7 Bg5 f5 Rh7 Nh8 Kh6 f6 Nh5 f7 Rg7 f8N Rh7 Bc1 b2 Rb3 Rf7 Rg7 Rf3 Nh7 Rc3 Bf5 b1N Bb2 Rc1 Be4 Nc3 Bb1 Ne2 Rf3 Bc7 Rb3 Rc8 a8R Bb8 Bf5 Ra1 Bb1 Bb7 Ra5 Bg2 Nf8 Bf1 Nh7 Rf8 Bc2 Rf3 Bb1 Nc7 Kd8 Rg3 Qf2 Rc3 Qe1 Ne6+
4kqN1/BnQ3q1/p6R/Bn1r4/2bbb1nR/nnNB1nN1/6N1/3rBn1K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 g5 Kg2 d5 e4 f5 c4 a6 b4 f3+ Kf2 a3 h4 f4 h5 a2 b5 d3 c5 d4 b6 g3+ Ke1 g2 Kf2 g4 c6 d2 b7 d3 c7 Nc6 b8B Bb7 c8N Nh6 e5 Bg7 e6 Na5 e7 Be4 Ne2 g1N Rh4 Nb7 Qc2 d1N+ Ke1 g3 Bg2 f2+ Kf1 d2 Ba7 Ng4 h6 Nb2 h7 d1N Qc7 Bd4 Nb6 Nc4 Nd5 Nf3 Nbc3 Na3 Ne3 Rg8 h8B Rg5 Bh1 Rd5 Kg2 f1N Bd2 Rc8 Rc1 a1N Be1 Nb3 Be5 Rb8 Bd6 Rc8 Bb4 Qd6 Rc2 Rd8 Ba5 Qf6 Rb2 Qf8 Rb1 Nc1 Rb5 Nb3 Rb6 R8d7 Rbh6 R7d6 Kh3 g2 Ng3 g1Q Ng2 N3h2 Qc5 f3 Qb6 f2 Qc7 Kf7 e8N+ Rd7 Rh8 Nf3 Nf6 Ke7 Ng8+ Ke8 Nb1 Nc3 R8h6 Ncb5 Nc3 N1h2 Ne3 f1B+ Bg2 Bfd3 Bf1 Be2 Ng2 Bc4 Bd3 Nf1 Nf4 Qe3 Kg2 Qg7 Kh1 Qc1 Ng2 Qf4 B5b6 Qff8 Ba5 Bf2 Bc2 Rd1 Bb1 Bd4 Bd3 Rd5
8/NBQ5/n5qr/rRp1r3/1rr1Rqn1/r2Rbk1N/R1n5/N2KqNBb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 a4 Kd6 d4 c5 g4 b5 a5 h5 d5 Ke5 d6 f5 a6 b3 g5 b2 a7 b4 g6 b3 g7 c3 d7 h3 Ra6 h4 Ra1 h2 Qc2 h3 Ra5 f3 Bd3 f2+ Ke2 f1N Ra2 f4 Ba6 f3+ Ke1 f2+ Ke2 Qc7 d8N Nh6 g8N Ne3 Ra1 Kf4 e5 f1R e6 Bb7 e7 Ng4 e8R Bh6 Re5 Rf3 Nd2 b1R Nf6 b2 Nfe4 Re8 Ra5 Bg5 Qb3 c2 Ng3 Qd6 Rd5 Re5 Rd3 Bd5 Bc8 Na6 Qb7 Bc6 Nb3 Qc7 Bd2 c1R Na1 Rc4 Bc3 Nc2+ Kd2 Qf7 Nf1 Ke4+ Ke2 Be3 Qc7 Qf4 Rb5 Rg3 Bd4 Bd5 Nf3 Bb7 Rg1 h1R Nc6 h2 Rg2 Rh3 Ng1 Rh6 Nh3 Rg1 Rg3 h1Q Rf3 Rg3 Rf2 Rd1 Rg2 b1Q Rh2 Rb8 a8R Rc1 Na7 Bc6 Ra5 Rbb4 Bb7 Rd1 Re8 Bd5 Rda3 Rd3 Ra2 Ra3 Rb5 Ra5 Rg2 Rf3 Rg3 Bc6 Ng1 Qh5 Nh3 Qg6 Re6 Bd2 Bf2 Rfa3 Rd3 Be3 Bg1 Qc1 Nb3 Qa1 Re7 Qc3 Kd1 Kf3 Na1 Rf5 Red7 Kg2 Rd8 Re5 Nd2 Kg3 R8d4 Bh1 Re4 Kg2 Nf1 Kf3 Qf7 Qgf5 Qe7 Qg6 Qc7 Qe1#
B3QR1N/4n3/1B2Nb2/BK1Nn1n1/bbrb3k/1q6/1NBp2Rr/1n1n2qb w - - 0 1 illegal: No possible last move
4BbqN/2b1K2b/q2Nb2n/4QNr1/q2rN3/3RBRR1/knpq3R/3nq3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kh5 b5 g4 f5 a4 c5 d4 f3 g5 f4 g6 h3 a5 h2 e3 c3 a6 b3 g7 b2 a7 f2 Qa4 b4 Qa5 b3 Qa4 c4 Nf3 c2 Ng1 f3 Ra3 c3 Bb5 f1Q Bd3 f2 Qa6 Nc6 Qa4 Ne5 Qe8 Be6 Ba6 Qe1 Nd2 b1Q Ndf3 f1Q Nh3 b2 Be2 Nh6 g8R Nc4 Rgg1 Rg8 Nf2 Qd2 Rg3 Qa2 Ne4 b1B Nh4 Nb2 Nf5 Bg7 Bb5 Qa5 Kg5 Rd8 a8R Qa4 Bd7 Kc4 d5 Qfd3 Rd1 h1N d6 Nf2 Qh5 Kb4 Be8 Qda6 d7 Kc4 Rf1 Nfd1 Rf4 Kb4 Rff3 Qad5 Ra2 Kb3 Rc8 Q2d4 Bd2 c1B Rc4 Qd3 Rd4 Qc2 Rd3 Qdc4 Be1 Qd2 Bf2 Qd5 Qf7 Bc2 Qf6 Qda8 Qe5 Qd5 Ra1 Qdc4 Rb1 Ka2 Nf6 Q6c6 Qf4 Bd5 e4 Ng4 e5 h5 e6 h4 e7 h3 Nh7 h2 Nh6 h1Q Rd4 Bf8+ Bg6 Nde3 e8N Qdd1 Nhf6 Q6a6 Bg1 Bd6 Qe5 Bc7 Rd2 Bd3 Rh2 c2 Bf2 Bf5 Ne4 Qhe1 Bg1 Bf7 Bf2 Qcd5 Bg1 Qda8 Bf2 B5e6 Nf5 Rg7 Bg1 Bg8 Bf2 Bh7 Bg1 Nh6 Kf6 Nf7 Ke7 Qdd5 Qf6 Bd2 Rd1 Bc3 Bf2 Qda5 Rd3 Ned1 Be3 Nh6+ Bf7 Rg5 Qd4 Rb8 d8N Rb4 N8d6 Qb8 Qc5 Bg7 Qe5 Rd4 Bg6 Qbc8 N8f7 Qg8 Nh8 Qad2 Be8 Bf8+
Nbr2BN1/5b1B/1R1r4/n1bq1q2/2n1qR2/1R2Nbq1/kp5Q/q1rRK1N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 Ke7 c4 Ke6 e4 f5 a4 d5 e5 b5 c5 g5 a5 g3 h5 f3 a6 b3 h6 f4 a7 b2 c6 g4 c7 g2 h7 g3 Rh6+ Nf6 Nc3 b1Q Ba3 b4 Rh1 f2+ Ke2 f3+ Kd2 d3 Nge2 g1B Na4 g2 Qc2 b3 Rh3 d4 Bd6 Kd5 e6 b2 e7 Ne8 Qc3 Be6 c8N Nc6 Nc5 Bf7 Qa5 Kc4 Nb3 Bh2 Rh4 g1Q Qa2 Qg3 Nf4 Na5 Ng2 Rb8 a8N Rb6 Bc5 Qd5 Qa3 Nd6 e8R Rc6 Be2 f1R Nc1 f2 Re3 Rg1 Rf4 f1Q Ne7 Rb6 Rg4 Qff5 Rf4 Rg8 h8R Qfe4 Na2 Rc1 Rh6 Qdf5 Nc3 Qa2 Rb1 Qa1 Re6 Rc6 Bd1 Rg6 Ng8 Rc8 Ne2 Rf6 Rf2 Rh6 Ke1 d2+ Kf1 d3 Ng1 Rg6 Rf4 Rh6 Qa4+ Kc3 Qd7 Ndc4 Rb6 Rd6 Qc7 Be7 Ref3 Bf8 Ne3 Be7 Nc2 Bf8 Bb4+ Kb3 Ne3+ Ka2 Ba3 Rh6 Qb8 Bc5 Qe5 Rd6 Bb4 Rc3 Bc2 d1B Qh8 d2 Bd3 Ba4 Rd1 Bc6 Ba3 Rc1 Qh4 Qgg6 Bc2 Bg3 Qh2 Rd7 Rb7 Qee5 Rb6 Qfh5 Ng4 Bf8 Rfb3 Bf3 Rd4 Bb4 Re1 d1Q Re4 Qdd5 Rd1 Qed4 Ne3 Bb8 Rh4 Qg3 Bh7 Qhf5 Rf4 B4d6 Bb4 Q4e4 Ba3 Bdc7 Bf8 Bd6 Bh6 Bc5 Bf8 Qgg5 Kf2 Rd6 Ke1 Qg3+
1bq1rB2/N1R5/1nr3r1/1Q1Nr2b/1pn1BNR1/1k1Bbq2/b5rq/1K2N1B1 w - - 0 1 illegal: No possible last move
R3N1Rn/Bqqr3n/br1p1b1k/R3rB1b/N3R1b1/1q1N2N1/K3Q3/br6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 h4 Kf7 a4 Kg6 e4 b5 c4 g3 Kc2 g2 Kb3 d6 e5 d3 a5 d2 h5+ Kh6 e6 g5 e7 f3 e8R f2 c5 f4 a6 g4 a7 g3 c6 f3 c7 Bg4 c8R Qc7 Ba3 Ne7 Bc4 f1R Bf7 f2 Qe1 d1B+ Kb2 b3 Nf3 g1Q Nc3 g2 Nd4 b4 Na4 Ng6 Qe2 Re1 Nf3 f1B Qe7 Bg7+ Nd4 Rh7 Qe2 Bf6 Rh4 Qh1 Rg8 g1B Be6 Qhb7 Bf5 Rd7 Kb1 b2 Ka2 b1R Rcf8 Bf3 Re4 Bg4 Rfe8 Be3 R8e5 Nh8 Ra5 Bf4 Bc1 B4g5 Be3 Be5 Bf2 Bgf6 Bg1 Na6 Bf2 Rb8 a8N Nc5 Bg1 Ne6 Bf2 Qc1 Nc7 Ng5 Ne8 Qcc7 Be3 Bg7 Bg1 Nh7 Bf2 Bef6 Ra8 Kg5 h6 b3+ Ka3 b2 Ka2 Nf8 h7 Kh6 Bg1 Qbc6 Bf2 Rb6 Ra5 Q6b7 Ra8 Nf7 h8N Nh7 Ng6 Nh8 Nf4 Bh5 Nd3 Bg4 Bg1 Bh5 Qf2 Bdf3 Ne2 Bfg4 Ng3 Re2 Rd4 Re5 Re4 Bfe2 Nf4 Ba6 Nd3 Rf1 Qe2 b1Q+ Ka3 Qb4+ Ka2 Rb1 Bc5 Rc6 Ba7 Rb6 Nf1 Qb5 Ng3 Bg5 Ka3 Rd5 Nab2 Bc3 Ra2 Bgf6 Ra1 Bb4+ Kb3 Re5 Ra5 Bc3+ Ka2 Qb4 Na4 Ba1 Rf8 Qbc3 Rg8 Qb3#
4Nq1B/2b1q1B1/2Np1rrR/Nbb1Q3/2BB1R2/q1n1nn1b/1N5b/nk3K2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 Kg6 f4 Kf5 c4 g5 h5 b5 a5 e5 c5 g3 c6 g2 a6 g4 a7 d3 h6 d2+ Ke2 b3 c7 e3 h7 Ke4 f5 b4 f6 g3 f7 b2 Rh5 b3 Rh1 Nh6 Ra5 Ng4 Nh3 g1B Rh2 g2 Rd5 Bd6 f8B Rg8 h8B Nc6 Be7 Qf8 Rd3 Rg6 Bh4 Nb4 B8f6 Nc2 Qe1 d1N Bfg5 Na1 Rh1 Nh2 Qd2 Nc3+ Ke1 e2 Bh6 Bgc5 Qd1 g1B Na3 b1B Bcf4 b2 Rf3 Bd3 Bf2 b1Q Nc4 Qb3 Bg7 Qa3 Na5 Bb5 Bd4 Rb8 a8N Rb6 Qa4 Rc6 Bfe3 Kd3 Rf4 e4 Bh8 Ra6 Bdg7 Rc6 Qb4 Kc2 Qd4 Kb1 Nf2 Be5 Nd1 Rcf6 Qd5 d6 Bd4 Bh3 c8N Bb6 Nb7 Bc7 Ne7 Be3 Nb2 Bf2+ Kd2 e1N Nc6 Ng2 Nba5 Bg1 Bc4 e3+ Kd3 e2 Qe6 e1Q Qd5 Bd8 Nc7 Nf3 Ne8 Bc7 Qe6 Bg4 Rh6 Bh3 Ba7 Bed4 Qe5 Bh2 Bb6 Bf2 Bd4 Bfg1 Qd5 Qee7 Qe5 Nd1+ Ke2 Nc3+ Kf1 Be3 Ba7 Bc5 Bb6 Bb4 Bf2 Bc5 Bd4 Ne3+
Rq2q1qb/rrBk4/p7/3rB3/r1qBbq2/1nKNR1n1/2B1NN2/n1N1Q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 c4 d5 h4 g5 b4 g3 e4 g4 c5 f3 e5 a6 b5 a3 e6 f2 b6 a2 b7 g2 c6 g3 e7 d3 c7 d4 h5 f4 h6 f3 h7 Nc6 b8B Bb7 c8N Ra7 Nb6 Bg7 Be2 f1Q Rh2 f2 Qe1 Na5 Na4 Nf6 Rh6 Ne4+ Kd1 d2 Kc2 d1R Kb2 d3+ Nbc3 d2 Rb1 a1N Rh4 Rf8 h8B Rf4 Rh5 Kd7 e8N Bf6 Nd6 Qe8 Bf3 Qe2 Re5 f1Q Re6 Bd4 Bf6 Qff2 Bd8 Bh8 Bg4 Qd4 Bf5 Qe5 Bg6 Qc4 Ne2 g1Q Qf1 Qe3 Nc5+ Kc6 Bf6 g2 Qe1 Qf2 Bd8 g1Q Bh7 Qgg7 Re7 Ng3 Nde4 Qf3 Nf2 Qgg8 Bd3 Rf7 Bc2 Qff4 Bb6 Qc7 Re3 Rg7 Na2 Kd6 Bb3 Be4 Ba4 Ke7 Bc2 Qb7 Be5 Qca4 Kc3 Qad7 Rb5 N5b3 Bb2 Qbc8 Kb4 Rc1 Bb1 d1R Ba5 Rc2 Nac1 Rd5 Bbd4 Ra2 Bc2 Ra4+ Kc3 Qa8 Rb8 Qb5 Rc8 Qab7 Ra8 Qbb8 N5d3 Ke6 Rf3 Rgb7 Re3 Kd7 Bac7 Qc4+
k1N1b2r/b1rBK3/1q2R3/1n2Qnr1/R2p1n1N/NR2b1nN/3B1Rq1/1q2q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 Kd7 h4 Kc7 a5 Kb7 e5 f5 e6 g3+ Kf3 b3 c5 b4 h5 d3 h6 d4 e7 g2 e8R b2 h7 b3 Na3 b1N Rh4 b2 Nh3 g1R Be3 d2 Qb3+ Qb6 Qb4 d1Q+ Be2 g4+ Kf2 f3 Ra2 f4 Rh5 Na6 Bc4 Nc3 Bf1 b1Q Rd2 Nh6 Qb3 Nc7 Bb5 Nf5 Re6 N7d5 Bd7 Ra7 a6+ Ka8 c6 Nb5 c7 Bc5 Rc2 Bb7 c8N Bc6 Bd2 Rc7 a7 Qdc1 Qe3 Rg3 Qe5 Qh1 Bc1 Qg2+ Ke1 f2+ Ke2 f3+ Kd3 f1N Kc4 f2 Bd2 Nf4 Rb2 Rd3 Rb3 N1g3 Rhh6 f1Q Rhf6 Qfe1 Rf8 Rg8 h8N Rg5 Ng6 Re3 Qf6 Re5 Nh4 Rd5 Qe5 Rd6 Re7 Rh6 Re6 Rh8 Rff6 Nge2 Rf8 g3 Rf7 Qf3 Rff6 g2 Rf8 g1B Rff6 Kb7 a8R Qg2 Ra4 Be3 Rf7 Neg3 Rff6 Qa6 Rf7 Ba7 Kb4 Bb8 Kc5 Qb6+ Kc4 Nfh5 Be8 Ne7 Rf2 Ba7 Kb4 Ka8 Kc4 Be4+ Kb4 Bg6 Bd7 Rb7 Kc4 Nef5 Kb4 Be8 Kc4 Qgf1+ Kd5 Rc7 Rc6 Rg7 Ke6 Nf4+ Kf6 Rg5 Re6 Nfd6 Ke7 Qfe2 Rf1 Qg2 Rf2 Ndf5+
n3k1r1/RQ3R1n/bN3br1/b1RR3r/n7/3pr2B/K1B3rq/NBr1b1B1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 c4 g5 Kc2 f5 Kb3 d5 a4 g3 e4 d3 h4 d4 h5 f3 h6 f4 e5 d2 c5 d3 a5 g4 e6 f2 a6 g2 a7 f3 c6 g3 e7 Na6 c7 Bg7 h7 Qd6 Be2 f1R Ra4 f2 Rh3 Re1 Ba3 f1R Bf3 Re3 Rh2 Nf6 Bb7 Rf2 Ne2 g1B Nbc3 g2 Rh5 Qh2 Qb1 d1N Nd4 Nb2 Ra5 Na4 Rc5 Rc2 Nd5 Bf2 Bb2 g1B Nb6 Be1 Ka2 Rg2 Bd5 Bb7 c8B Nc7 Nc2 Ba6 Bd4 b3+ Ka1 b4 Bh3 b2+ Ka2 Rb8 Na1 Na8 Rab5 Rg8 h8R Nh7 Bb3 Rd8 Bc2 Rd6 Rd5 Bgf2 Rbc5 Bc3 Qh1 Bfe1 Bb1 b3+ Ka3 Nf8 Rh7 Bf6 Rg7 Ba5 Rf7 Ree2 Bf2 Nh7 Bg1 Rde6 Rd7 R2g6 Qb7 R6e5 Rd4 R2e3 Rdd5 Rh5 Bc8 Nc7 a8R Rg2 Ra7 Na8 Ba2 b1R Bh3 Rc1 Bb1 b2 Ka2 Bh8 Rff5 Bf6 Rf1 Kf7 e8B+ Kf8 Bed7 R2g6 Bdg4 Ke8 Bd1 Rc2 Rf3 Rcg2 Bb3 Bd4 Rf7 Bf6 B1c2 b1R Bc4 Bad2 B4b3 Rc1 Bb1 Bb4+ B3c2 Ba5
n4b1n/2N1q2N/Q2Nqrp1/1R3Bb1/n3RbrB/k7/2brnN1B/B3r2K w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 b5 c4 d5 f4 Kd7 Kf2 Kd6 Kg2 Kc5 h4 e5 f5 e3 h5 g3 f6 e4 f7 g6 a5 b3 h6 Kb4 a6 b2 h7 d3 a7 e2 c5 e1B c6 e3 c7 d2 Bd3 e2 Na3 b1Q Nh3 d4 Qc2 d1R Bb2 Qe7 Rh2 Qa2 Kh1 g2+ Kg1 Nh6 Ng5 Bd2+ Kf2 e1B+ Kg1 Bf4 Rb1 Nd7 Rc1 Qae6 Bc4 d3 Be5 d2 Bd3 Nb6 Bf5 Ba6 Qd3 Bh4+ Qf1 Re1 c8N d1R Nb1 Rd2 Nc3 Ka3 Nce4 b4 Rb1 b3 Nf2 b2 Nd6 Bd3 Rh1 Rb8 a8N Bc2 Nc7 Na8 Bf6 Rg8 h8B Rb4 Nh7 Bhg5 Rh5 Rbe4 Rc1 b1N Ba1 Qd5 Bhe5 Nc3 Rb1 Qc4 Rb5 Na4 Rh4 Rh8 Bf6 Re6 Bfe5 Rf6 Rg4 Qce6 Rh4 Bg7 f8B Nf7 Rg4 B7h6 Bg7 Re8 Rh4 Nh8 Rg4 Be3 Bh2 Rd8 Re4 Bef4 Nc8 R8d3 Nd6 Rg3 Bf8 Rg4 Bg7 Rf7 Bgd4 Bf8 Bf6 Bgh6 Bg5 Rf6 Bh4 Bhg5 Rc5 Re3 Qa6 Ree2 Rb5 Re3 B2g3 Re1+ Kh2 g1N Kh1 Bfh6 Bh2 Bg7 Rd4 Bf8 Re4 Ne2+
2B5/1Bn1kNn1/bbqNrp2/1b1R1qn1/BqR1R1Rb/3K2Q1/n4q2/r5B1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 h4 g5 c4 b5 a4 g3 e4 g4 c5 f3 c6 d3 e5 b3 h5 d4 e6 f2 a5 g2 h6 b2 c7 b4 e7 g3 a6 b3 a7 Na6 h7 Nh6 Qh5 Qd6 Qg6 Qc6 Qh5 Nf5 Ra5 Ng7 Nh3 g1B Ra1 g2 Be2 f1Q Qa5 Qf2 Na3 b1Q Qb4 b2 Kd1 d2 Qd6 Qbf5 Nb5 b1Q Ng5 Qb4 Rh4 Bb7 c8B Nc7 Rg4 Ba6 Qg3 f6 Nf3 Kf7 e8R Bd6 Re3 Re8 h8R Re6 Ree4 Ke7 Rhh4 Bf4 Bb2 Bg5 Nd6 Bb5 Rh5 Bh4 Ng5 Ba6 Bc3 Bb5 Kc2 d1N Ra4 d3+ Kd2 Ba6 Ngf7 Bb5 Kc1 d2+ Kc2 Ba6 Bc4 Bb5 Ba1 Nc3 Kd3 Na2 Bd4 d1B Bb6 Ba6 Bb5 Bb3 Ra3 Ba4 Rc3 Bh2 Bd4 g1N Rc4 Nf3 Bc5 Ng5 Bd4 Rb8 a8B Bg1 Bab7 Ra8 Ba7 Qcb6 Bbd7 Qc6 Bc5 B4b5 Be3 Q2f4 Ba7 Bb6 Be8 Ba5 Bg1 Qf2 Qf3 Nh3 Rhg5 Qcc5 Rg2 Qh7 Rh5 Bc6 Qg3 Rb8 Ne5 Qa4 Ba8 Rb1 Qg4 Bb6 Nef7 Qcb4 Bab7 Ra1 Rd5 Ng5 Qf4 Bd7 Rg4 Qf5 Qg3 Qab5 Bc6 Q5c5 Ba4 Bdb5 Bc6 Qh7 Ba8 Qhf5 Bab7 Qc6
k2n3B/2B1b2R/q1brn1Q1/bR1N1B1b/B2b2rN/3K1p2/1RRp4/q2nq3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 Kc6 a4 g5 c4 b5 c5 Kb7 h5 f5 a5 d3 h6 f3 h7 d4 e5 f4 e6 b3 e7 b4 e8R f2 Ra2 b2 Re2 b3 Bh3 f1B Na3 b1Q Rc2 g3 Ra2 g2 Re7+ Nd7 Nf3 g1B Nb5 b2 Nc7 g4 Re6 g3 Qa4 g2 Re3 Qa1 Qc4 b1Q Qc2 Qf6 Na6 Be7 Ra4 Nh6 Nh4 f3 Nb4 Ra6 c6+ Ka8 c7 Nf7 Be6 Rg8 h8B Nd8 Re5 Rd6 a6 Nc5 a7 Rg4 Bf5 Nce6 Rb5 Bf2 Ba3 g1B Nd5 Bb7 c8B Bh3 Rc4 Bc6 Bd7 Qf1 Qb1 Qe5 Rc2 Be1+ Kd1 d2 Rbb2 Bb7 Ba4 Qa6 Bc5 Qg3 Bb6 Bc6 Bc7 Be3 Rb5 Qf2 Rcb2 Qe2+ Kc2 d3+ Kc3 Bd4+ Kc4 d1N Rh2 Qe5 Rhc2 d2 Kd3 Bef2 Bh7 Bb6 Be4 Bfd4 Bf5 Kb7 a8R Qe1 Rb8+ Ka7 Rb7+ Ka8 Bb8 Ba5 Rc7 Bf8 Rh7 Be7 Bc7 Rf4 Qa2 Bg4 Qc4 Bh5 Qc5 Bb7 Qc6 Rg4 Qe8 Bc6 Qf7 Qb7 Qg6 Qa6
1R5Q/Rn1r2q1/2N4q/1rn2KNB/1p1bb3/1n2q1k1/NB4p1/R1qRNq1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 h4 b5 c4 g5 c5 f5 h5 d5 c6 d3 h6 d4 h7 d2 c7 d3 a5 f3 Ke3 b3 a6 g3 a7 b4 Rh2 g4 Rh3 f2 Rh4 g2 Ra4 b2 Be2 f1N+ Kf2 Kf4 e5 Qd6 e6 Bb7 c8R Nd7 e7 Rb8 a8R Nh6 e8N Nf7 Qc2 Bg7 Rh5 Qh6 Nd6 Nd8 Ne4 Nc5 Na3 b1Q Qd1 Qb2 Ng5 Bf3 R4a7 Rb5 Qe1 Ndb7 Rcb8 Qbf6 Bb2 d1R Nb1 Nd2 Rh4 Ndb3 Rh1 d2 Nc3 Rd8 h8N Rd7 Nhf7 Rb1 Nd6 d1Q Ndf7 Qc1 Nd8 Bh8 Bd1 Qfg7 Na2 Ra1 Qc3 g3+ Ke1 Kg4 Nc6 f4 Qf6 Qgh7 Qd8 Bd4 Qf8 Q7g7 Qh8 Be2 N1f3 Qe3 Rf1 g1Q Nfe5+ Kh4 Nd3 Qh1 Rg1 Bg4+ Kf1 f3 Ne1 f2 Bf3 Qf4 Ke2 g2 Rf1 Kg3 Rg1 Q1h3 Rh1 Qc1 Rg1 Na6 Kd3 f1Q+ Ke4 Bh5 Bd1 Q3e6+ Ne5 Qb6 Nc6 Qbc5 Bg4 Q5c3 Bf3 Nac5+ Kf5 Q3e3 Rh1 Qfg1 Be2 Bf3 Bd1 Bd5 Bh5 Bf3 Nd3 Qgf2 Rd1 Qf1 Ne1 N7a5 Nc2 Rd6 Re1 Nab7 Ra3 Qcd2 Nc3 Qfg1 R8a7 Rd7 Ra2 Rd1 Ra1 Qc1 Na2 Qgf2 Re2 Rh1 Ne1 Qg1 Rd2 Qf1 Rd1 Be4#
3nR1n1/1QNb2k1/N4qn1/N2p1r2/1BBN1pb1/1brBKb1q/R2B4/4b1r1 w - - 0 1 illegal: No possible last move, all moves rejected
bRnr1q1q/B1N1qr2/2B1R1pn/KQN1Nqrk/8/3B3B/3Nq1p1/3nb3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 b5 h4 f5 c4 Kf7 a4 Kg6 e5 f3 a5 f2 a6 b3 a7 f4 c5 b4 e6 d3 e7 f3 e8N d4 c6 b2 c7 g3 Qe1 g2 Ra2 b3 Qe3 Nc6 Qe7 Bb7 c8B Rh5 Ne2 Rg5 Qd7 Bb4+ Nec3 Nce7 Be2 f1R Nc7 f2 h5+ Kh6 Rg1 g6 Ra6 Rb8 Qe8 Ba8 Bh3 Qd7 Re6 Rd8 Rh1 Nc8 Rg1 Qe7 Qc6 Bd6 Ne4 Bg3 Rh1 Re1 Qb7 f1Q Qb4 Qff8 Qb6 Bb7 a8B Rf1 Rg1 Rf7 Re1 Ba6 Bc6 Bb7 Rf1 Ba8 Rf4 Kh7 h6 Bf2 Rf5 Bh4 Rb5 Be1+ Kd1 d2 Qa5 Kh8 h7 Kg7 Rb8 Kh6 Bc4 Kh5 Qb5 Nh6 h8N Rh7 Ke2 d3+ Ke3 d1Q Nf7 d2 Bf1 Nd6 Kd3 Nc8+ Kc3 Qf3+ Kc4 d1N Be3 Qf2 Nbd2 b1Q Ba7 b2 Nc5 Qa1 Kb4 b1Q+ Kc4 Qaf6 Ne5 Qbf5 Kb4 Rf7 Bd3 Qe2 Ka5 Q6h8
2rn1N2/B2KB3/bbpb3k/2BQr2B/1r2q2r/rn5p/NR5R/3q1RnR w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 b5 f4 e3 d4 e2 a4 e1B g4 c6 d5 b3 d6 h3 g5 b4 a5 c3 a6 h4 a7 c2 d7 b2 Ke6 b3 Bc4 h2 Qd4 Ba5 Bf1 Ba6 Ra2 Bb6 Nc3 b1R Be2 b2 Be3 c1N Qd5 Nh6 Nh3 Nb3 f5+ Kg7 g6 Nf7 Bc5 Kh6 g7 Re1 g8R b1R Rf1 h1R f6 Qe8 d8B Nd7 Ng5 Nde5 Bg1 Nf3 Nh7 h3 Rg5 Rc8 a8R Ra1 Rb2 Ra3 Bc5 Ng1 Na2 Rh2 Rg8 Rg2 Bc7 Rg4 Bb8 Rb4 Rg2 Qd8 Rgf2 Qe8 Rh2 Nd8+ Ke5 e6 f7 Bd6+ Kf6 e5 Ba7 e4 Bh5 e3 Nf8 Qe4 Rh1 Be5+ Ke7 e2 Kd7 Bd6 Rb8 Rc1 Rb7 e1Q Rbh2 Qd1 Ne6 Re8 Rf6+ Qg6 Rc2 Rba4 Ng7 Na1 f8B Ba5 Rd2 Rcc4 Rdh2 Re5 Rbb2 Bb6 Rf1 Rab4 Be7 Nb3 Ne6 Rh4 Nf8 Qe4
nN1Q2Rn/B1RBn3/pb6/Kpq1Rq1B/1B3r2/4Rb1r/1r3Nbk/1n4n1 w - - 0 1 illegal: No possible last move
rbn1R2q/2b2R2/6rR/Qpn2n2/1Nn1B2p/2qb2q1/K2k1B1N/1Br3RB w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kf6 c4 Kf5 Kc2 d5 Kb3 e5 a4 b5 a5 h5 a6 h3 g3 d3 a7 d2 c5 e3 c6 Ke4 g4 h4 c7 e2 g5 Kd3 g6 h2 f5 e4 f6 e3 g7 d4 f7 Bf5 c8R Ne7 g8B Rh6 Na3 Nd7 Rb1 Nc5+ Kb2 b3 Ra1 Rg6 Kb1 b2 Qe1 d1R Rc6 Nc8 Nf3 Bd6 f8R Bb8 Ka2 b1N Be6 Nd2 Rb1 Nc4 Rf6 Qh8 Rg1 h1N Bg2 Ng3 Qa5 e1B Rf7 e2 Be3 Rc1 Nh2 Bd2 Bf2 e1Q Ra1 Bdf4 Nc2 Bfc7 Bh1 Qc3 Nb4+ Kd2 Rb6 Be4 Bf5 Bd3 Bfe4 Nf5 Rbf6 Bf1 Bb1 d3 Rd6 Kd1 Rd8 d2 Bhe4 Ke2 Re8 d1Q Bh1+ Kd2 Bhe4 Rb6 Rg6 Qg4 Rh6 Rg6 Bh1 Be5 Bhe4 Bbc7 Bh1 Qgg3 Bhe4 Rb8 a8B Bd3 Bh1 Bed6 Bae4 Ra8 Rg8 Re1 Re8 Bb6 Bc2 Bb8 Rc1 B6c7 Bb1 Re2 Rf1 Re1 Rg1 Rc1
6Q1/2N3b1/n2B1Rr1/3R4/2r1Rqnn/RBB1pnbk/NKp4n/nbB3r1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Ke6 a4 b5 d4 c5 Kd2 h5 Kc2 b3+ Kc3 b4+ Kb2 e3 a5 e2 a6 e1B a7 h3 g5 Kf5 d5 e5 g6 h4 d6 e4 g7 h2 d7 e3 Be2 h3 Nd2 c3+ Kb1 c2+ Kb2 c4 Bf3 Qh4 d8B Nh6 g8R Bg7+ Bf6 Ng4 Ra4 c3+ Ka1 b2+ Ka2 b1R Bg2 b3+ Ka3 b2 Rf8 Rh6 Rh8 Rg6 Kb3 Na6 Nc4 Bg3 Ne2 Ra1 Rf1 b1N Rf8 h1N Bd5 h2 Nb6 Nhf2 Re4 h1N Rd8 Nh2 Qe1 Kg4 f5+ Kh3 Be6 Nd1 Nd5 Qf4 Nc7 Ndf2 Rd5 Nfg4 Rf3 Bb7 Qg1 Rc8 a8R Bc6 Be5 Bb5 f6 Bd3 Red4 Bf5 f7 Be4 f8B Bd3 Nb5 Rc4 Nc7 Bf5 Bfd6 Bd3 Bb2 Bf5 Re4 c1N+ Kc2 Nb3 Nc1 N1d2 Na2 Rf1 Rf2 Ndf3 Bc1 Na1+ Kb1 Nh4 Bf6 Ne5 Rf3 Nf2 Ra7 c2+ Kb2 Nfg4 Rf2 Nef3 Bc3 Nb8 Ra3 Na6 Bd7 Re1 Ba4 Be6 Bb3 Bg8 Rf5 Bf7 Rf6 Rf1 Rd2 Bg8 Rd5 Be6 Qf2 Rg1 Qd2 Bg8 Qd4 Bf7 Qe5 Be6 Qg5 Rd4 Rb5 Bf8 Bc4 Rh6 Qg8 Rg6 Nb4 Bg7 Bd5 Bf5 Bf7 Be6 Rbf5 Ba2 Bb3 Bb1 Na2 Ra4 Rd5 Rc4
r2N3R/3qn3/2Rp4/rK1k2B1/1n1B1r1r/R2NBR1r/3Qpbb1/1rrq1B2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 c4 g5 h4 b5 f4 e3 Kd3 g3 a5 e2 c5 e1R h5 g4 a6 g2 c6 g3 c7 b3 h6 b4 Kc4 d3 h7 b2 a7 d2 Qc2 d1Q Be2 b3 Qd2 Nc6 Bf1 Re5 Rh2 Ra5 Nf3 g1R Ne5 g2 Nd3 Rh1 Na3 b1R Nb5 g1R Rh3 b2 Nd6 Nb4 Ra3 Rg4 Nf7 Bb7 c8R Bg2 Rf3 Rhh4 Rc5 Qe8 Nd8+ Kd6 Rc8 e5 Rc7 e4 f5 Ne7 f6 Bh6 f7 Be3 f8B Rf4 Bh6 Bf2 Bg5 Ra1 Rc8 b1R Rc5 Rhf8 h8B e3+ Bd4 e2 Rc7 Rfh8 Rc5 Rh3 Rc8 R8h4 Rc5 Ra4 Kb5 Ra6 Rc6+ Kd5 Nb2 d6 Nd3 Rc8 a8R Qd7 Nb7 Rc7 Rh8 Ra8 Nd8 Ra2 Qe1 Raa1 Bce3 Rca7 Qc3 Rc1 Qe1 Rab1 Qd2 Ra5+
1K2rbR1/6nN/1p1knNr1/6B1/3r1rRn/N2b1n1Q/rN1B3p/nBq4B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 c4 d5 g4 Kd7 a4 e5 f4 b6 a5 h3 a6 d3+ Ke3 h2 a7 d4+ Kf2 e3+ Kf3 h4 Ke4 h3 Kd5 e2 c5 e1N g5 e4 g6 b3 f5 e3 f6 e2 f7 b2 g7 d2 Ra6 d3 Bg2 Qc7 Qc2 d1R Qb3 d2 Be4 Ng2 Na3 b1N Ra4 e1N Nf3 Ba6 Ng5 Nc2 Nh7 Bd3 Rg1 Nh6 g8N h1R Ngf6+ Ke7 c6 h2 Rb4 Nh4 Rg8 Rdg1 Bf5 d1R Bg5 Qf4 c7 Qc1 Rg4 Na6 Kc6 Na1+ Kb7 Kd6 Bg6 Re8 a8B Nd2 Ka7 N6f5 c8N+ Kc7 Bc6 Ndf3 Nd6 Nc5 Ndc4 Ng7 Nb2 Kd6 Qc3 Re4 Kb8 Nce6 Bd2 Rf4 Qb3 Be2 Bb1 Rg2 Qe3 Bd3 Ba8 Rhg1 Be4 Nfd4 Qh3 Re2 Bh1 Ndf3 Rg2 Rd4 Rg4 Rdf1 Rf4 Rg6 Rg4 Be7 f8B Rff2 Ba2 Ree4 Bg5 Rf4 Bb1 Rg2 Nd1 Ra2 Nb2 Ngf5 Bfh6 Bf8 Qg2 Nfg7 Qh3 Rf5 Bd2 Rff4 Bg5 Be7 Rf8 Bd8 Rf7 Re8 Rf8 Be7+ Kb7 Nb3 Rg8 Bf8 Ka7 Na1 Kb7 Re7+ Kb8 Re8+
N4q1b/3k1B2/R2n3R/qr4bn/n1b2b1Q/2B1B1R1/BpNr1pb1/Kb4R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 c4 g5 Kc2 f5 Kb2 d5 h4 d3 e4 f3 a4 d2 h5 f2 e5 g3 a5 b3 a6 g2 e6 f4 h6 f3 h7 d4 a7 d3 c5 g4 e7 b4 c6 g3 c7 Na6 Qc2 d1B Bh6 d2 Ra4 Bh3 c8B Nf6 Ne2 g1B Ra3 g2 Bg7 Qa5 Qe4 Nc7 Qg4 Bh2 Bf5 g1B Qg2 Nb5 Bc2 Rd8 a8R Bf4 Nbc3 Nh5 Qh2 Kd7 e8R Bg2 Na4 Be7 Bd4 Nd6 Rg8 Beg5 Bb1 Rb8 Ka1 Rb5 Rg6 Rd8 h8B Bc2 Bhg7 d1N Ra6 Bd3 Ba2 Nc3 Rh6 Bc4 Qh4 Bgh2 Ba7 Be5 Nd4 Bhf4 Bd3 f1Q+ Bdb1 Qf2 Nc2 Qc5 Rc1 f2 Rg1 Qc8 Be3 Bef6 Bf8 Bh8 Bg7 Qc5 Bf6 Qf5 Bfd4 Qf8 Nb6+ Ke8 Nd5 Na4 Nc7+ Kd7 Na8 Ng3 Ne1 Nh5 Bg6 b2+ Kb1 Bg3 Bf7 Bh2 Bc3 Bhf4 Kc2 b1B+ Kc1 Rc8 Nc2 Rcc5 Rb3 Rd5 Ra3 Rd2 Rb3 Nb6 Kb2 Na4+ Ka1 Nc8 Be5 Nd6 Rd3 b3 Bc3 Bf1 Ba7 Bh3 Rdg3 Bg2 Be3 b2+
1nNb1b1q/rbkr1B2/3N2n1/8/nK3R2/1pB3r1/2n1nQ1p/BNrB1NR1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 e5 c4 d5 a4 Kd7 f4 b5 g4 h5 c5 d3 c6+ Kc7 f5 b3 Kc3 d4+ Kb2 b4 g5 d2 g6 e3 a5 h3 f6 h2 g7 e2 a6 e1N a7 e4 f7 e3 Ra5 d3 Ra4 e2 Ra3 h4 Ra2 h3 Nf3 Ne7 g8B Ng6 Ra4 Nc2 Qe1 d1R Rg1 h1R Bd2 h2 Qf2 e1B Bc3 Rh3 Nfd2 Rg3 Be2 Bb7 Nf1 d2 Bh5 Rc1 Bd1 Qd4 Ra3 Qh8 Ra4 Be7 f8B Bd8 Qg2 Bf2 Bfg7 Bc5 Qf2 Bf8 Bc4 Rd3 Bf7 Rd7 Rg2 Rg1 Bgd4 Kd6 c7 Kc6 c8N Kc7 Rg5 Rg3 Nd6 Na3 Ka1 b2+ Ka2 Nc2 Kb3 Bfe7 Be5 Bf8 Kc4 b3 Bg7 Rh3 Rg1 Rg3 Be2 d1N Bgf6 Nd4 Kb4 Ne3 Bd1 Nec2+ Ka5 Ne2 Rf4 Ne3 Bg7 Re7 Kb4 Rd7 Nbd2 b1N Bge5 Na3 Nb1 Nac4 Ba1 Nb2 Bc3 Nc2+ Ka5 Na4 Kb5 Na6 Ka5 Rb8 a8N+ Kc6+ Nb6 Kc7 Nbc8 Ra8 Kb5 Ra7 Ka5 Nb8+ Kb5 Na3+ Kb4 Nc2+
2rR2b1/1q2b3/n1N1n1K1/p1B2n2/r1BRrn1R/1r4R1/pkbn1B2/NB5Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ d3 b4 d5+ Ke5 h5 g4 f5 g5 h3 g6 a3 b5 h2 c3 f3 b6 a2 b7 d4 g7 f4 Qe2 Kb3 c4 d2 c5 d1R c6 h4 c7 f2 Qg4 h3 Qh4 f3 Qh5 d3 Kf4 d2 e5 Na6 b8B Qe7 e6 Nf6 Kg5 Nh7+ Kg6 Ng5 g8R Re1 Qh6 d1B Kh5 Bc2 Ba3 Re4 Bd3 f1R Kg6 f2 Bc5 Kb2 Nd2 Rb1 Ngf3 f1N Nb3 Nd2 Bc4 Bd7 Rd1 h1N c8R h2 Rd8 Nf2 Ne5 h1N Nc6 Ng3 Qh1 Nf5 Bg3 Nd3 Bgf2 Bc8 Rd4 Qb7 e7 Ne6 e8B Be7 Rg1 Bd7 Rg3 Rc8 Bf7 Rhh4 Rd8 Rhf4 Bg8 Rh4 Bh7 Ndf4+ Kf7 Rbe1 Rd1 R1e3 Na1 Rb3 Rc1 Nac7 Rcg1 a5 Rg4 Na6 R1g3 Rh3 Rh4 Rb4 Rg6 Rhb3 Rg3 Ra4 Bg6 Bf8 Kf6 Be8 Bh7 Bf7 Bg6 Bg8 Bh7 Nd5+ Kg6 Be7 Qd1 Bd3 Rf3 Re2 Qh1 Nd6+ Kh6 Ndf4 Rg3 Bb1 Bc2 Re4 B2d3 Nd5 Kg6 Nf5 Bb6 Bc2 Ba7 Bd1 Bb1 Bc2 Bc5 Ndf4+
B1q1kn2/5b2/Bbb2r2/pp2N3/2n4K/nNQ4N/1Bbr2B1/q2bRNnR w - - 0 1 illegal: No proof kernel
1R2N2k/Bn6/BK1p1Nq1/2B1R1qr/1B2q2b/1N1p2b1/2b1r3/q1bNQnq1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 e5 f4 b5 a4 g5 h4 Kg7 c5 d3+ Ke3 b3 f5 b4 a5 g3 a6 g2 c6 g4 h5 g3 c7 b2 a7 b3 Ra5 Nc6 Qe2 Nh6 Bd2 Ba3 Bb4 Ng4+ Kd2 e3+ Kc3 e4 Kc4 Qg5 Kc5 Nh2 Nd2 b1Q Nh3 g1Q Nf2 b2 Nd1 g2 Kb6 Nd8 Nb3 Qa1 Qe1 b1Q Re5 Bc1 f6+ Kh7 h6 e2+ Bc5 Nb7 f7 Re8 f8B Kh8 h7 Re7 Qg3 e1B Be2 Rb8 a8N Nf1 Rh3 Qh1 Bb4 Re8 Bfc5 g1Q Qe3 Re7 Qd2 Bh4 Qe1 Qhg2 Rf3 Qg6+ Rf6 Q2g5 Rd6 Kg7 h8B+ Kg8 Rde6 Rh7 Bf6 Rh5 Re8+ Kh7 Kb5 Bg3 Nb6 Ra8 Bh8 Ra2 Nd5 Rb2 Bg7 Bh4 Bgf8 Kh8 Nf6 Ra2 Ba7 Rc2 Bg4 Re2 Bbc5 Qc2 Kb6 Qc4 Be6 e3 Bb4 Qce4 Bc4 Bg3 Ba6 Bh4 R8e6 Bg3 Bfc5 d6 Ne8 Bd7 c8N Ba4 Ne7 Bh4 Ng8 Bg3 Ngf6 Bh4 Nd4 Bc2 Re7 Rd2 Nb3 e2 Rd7 Bg3 Rd8 Bh4 Qf2 e1B Rb8 Re2 Qe3 Beg3 Qd2 Rh6 Qe1 Rh5
1b1q2B1/n1rbN2b/qb1n2R1/3NB1Q1/1NNpBr1p/6B1/Rrqrk3/2K5 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kf6 c4 Kf5 a4 b5 c5 d5 c6 h5 a5 e5 g3 b3 c7 d3 a6 e3+ Ke1 Ke4 g4 d2+ Ke2 d4 a7 b4 g5 h3 f5 h4 f6 h2 g6 b2 f7 b3 g7 Nc6 Ra2 Rh7 Bh3 Rb8 a8B Nh6 g8N Bd6 f8B Nf7 Ra4 Bd7 Na3 b1Q c8N b2 Na7 Qc2 Bg4 b1B Nc8 Rb2 Na7 Bb8 Ne7 Nd6 Bg7 Kf4 Bh8 e4 Nc4 Rf7 Qe1 d1R+ Qd2 Kg3 Be5+ Rf4 Nh3 Kg2 Re1 h1R Be6 Rh2 Nb5 Na7 Nc7 Rb7 Ncd5 Rc7 Nf2 Kg3 Kf1 Kf3 Ra2 Rg2 Qa5 Rd2 Bg8 Rh2 Nd3 e2+ Kg1 e3 N3b4 Rf2 Rd1 e1B Qb5 Rg2+ Kf1 Bg3 Ba3 Bh2 Ke1 e2 Bb7 Qa4 Bc6 Qa6 Bc1 Rb2 Be3 Bg3+ Bf2 Bh7 Rd2 Rh2 Rc2 Rg2 Kd2 Rh2 Kc1 Rg2 Rd2 e1Q+ Rd1 Qe2 Rg1 Qe4 Be1 Rgd2 Qa5 Bh2 Rg6 Ke2 Bg3 Qb5 Ndb6 Nf7 Be1 Rf6 Bf4 Rb7 Nd3 Qa6 Qg5 Bg3 Nb4 Qd3 Be3 Bgc7 Bf4 Nd6 Be5 Rf4 Be4 Qb3 N6d5 Bb6 Bf2 Rc7 Bg3 Qc2+
qkNbn2R/1qR5/1Qb1qN2/NR2pR2/1rbK2N1/n1Bn1p2/6br/q4B2 w - - 0 1 illegal: No possible last move, all moves rejected
B4r1N/2K3Qn/1nR3BR/1q1p1n2/1b1b2NR/k1B4b/3pqRn1/Bbrr4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 Kg3 f2 a6 f4+ Kg2 f3+ Kg3 b3 h7 Kb4 a7 d3 e5 d2 e6 b2 e7 Nf6 e8R Qe7 c5 Qe2 c6 Nbd7 c7 Nb6 Nc3 b1Q Bg2 f1R Rh5 f2 Be4 Qb2 Rb1 Ka3 Rh4 b4 Nh3 b3 Re6 Bb4 Bg6 Rf8 h8B Nh7 Ne4 Re1 Qc2 Rd1 Nf6 Bd7 Rc6 Rac8 a8B Bf5 Qc3 Be6 Kg2 g3 Ng4 Bd7 Rf6 f1N+ Rf2 Bf5 Nf4 Ne3+ Kh3 g2 Kg3 g1N Qg7 Ng2 Rh6 Nf3 Rh4 Rce8 c8R Nd4 Rc6 Re7 Nf6 Bh3 Ng4 Qc4 Rh6 Ree1 Rh4 Nf5+ Kf3 Ka4 Rh6 Qe5 Bb2 Qb5 Bc3 b2 Ra1+ Kb3 Ra4 b1B Nh2 Rc8 Qf7 Rc1 Ba1 Bf8 Bh5 Nge3 Ng6 Red1 Rh4 Bb4 Qg8 Qe8 Bhc3 g4+ Kf4 g3 Nh8 g2 Ng4 Ka3 Bg6 Qe7 Qg7 Rf8 Re2 g1B Rh2 Qd7 Ke5 Qd8 Re2 Ng2 Ke6 Be3 Rf2 Qg5 Ke5 Bd4+ Ke6 Na4 Kd7 Nb6+ Kc7 Qe3 Nf7 Qe6 Nh8 Qee2
4q1r1/1Bn2qpB/1k2bQbN/R2Bbb2/qB2r2K/8/1R2Rp1n/3NRqn1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 a4 d5 e4 Kd7 h4 Kc6 c4 b5 a5 f3 Kg3 f4+ Kf2 g3+ Ke1 g2 Kf2 d3 h5 d2 c5 b3 e5 b2 a6 d4 h6 d3 a7 b4 h7 b3 e6 Bd6 e7 Na6 e8R Nf6 Nh3 g1N Re2 Qe8 Ra5 Rg8 h8R Nc7 Ng5 Be5 R8h2 Be6 Nc3 b1B Nf7 b2 Nh6 Bc2 Rg2 b1B Ba3 Rb8 Qc1 d1Q Bb4 d2 Qb2 Bg6 a8B+ Rb7 Rgh2 Qb3 Nd1 Bbf5 Qa1 Qd5 Rg2 Qdd7 Qd4 Qdf7 Qd8 Nfd5 Qf6 Ne3 Rgh2 Qb8 Bh3 Nf1 Rg2 Nh2 Bg4 Bb1 Bf5 Qbe8 Bc2 Bh5 Bh7 Bhg6 Qe7 Bbf5 Qf6 Kd5 c6+ Kd4 Ne3 d1Q Rb2 Qa4 Nd1 Rb5 Re2 Rc5 Rb2 Rc4 Bb7 Ne2 Re1 Ng1 Ba8 Rc3 Rbe2 Re3 Bb7 Re4 Rb2 Na6 c7 Kc4 c8B Nc7 Ba8 Kd4 Bcb7 Kc4 Ra6 Kb5 Ra5+ Kb6 Bd5 Ng4+ Kf1 f2 Bab7 Rh8 Rh2 Rg8 Kg2 f1Q+ Kh1 Qa6 Rhe2 Nh2 Kg2 f3+ Kf2 Rf4 Kg3 f2 Re3 Qf1 R3e2 Bg4 Kh4 Re4 Qg5 B4f5+ Qf4 Bg4 Qf6 B4f5+
2k5/npBb3N/bbrbR1KN/RQ2q3/qr1Bq3/p1B1n1R1/2B5/q2R3n w - - 0 1 illegal: No proof kernel
rb1r1Bn1/pK6/1RNR4/1Bb5/b1N1NN1B/2qBrb1r/k3pbn1/2b1Q3 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Ke6 c4 d5 b4 g5 f4 e3 Kd3 e2 b5 e1R h5 g3 b6 g4 c5 a3 h6 g2 c6 g3 h7 a2 c7 Na6 b7 Bh6 b8N Re3+ Kc2 d3+ Kb3 d4 Kc4 d2 Kb5 Kd5 f5 e5 f6 e4 f7 d3 f8B Bg4 c8B Nb4 Bd7 Nc2 Ka6 Kc4 Kb7 Kb3 Kc6 Qc7+ Kb5 Qc3 Ka6 Bf3 Nh3 g1B Bb5 g2 Bb2 Bf2 Na3 g1B Qe1 d1R Nf4 d2 Rb1 a1B Bfd3 Ka2 Kb7 Bh2 Bc1 Bb2 Nc4 Ba3 Rg1 Bc5 Rg6 Bg5 Rd6 Bhg3 Qh1 Ne1 Nc6 Ng2 Qe1 Bh6 Qe2 Rh1 Qe1 d1B Ba3 Rh3 Be7 Rd8 Bh4 Ba4 Rb3 Nf6 Bb4 Rhe8 h8N Ng8 Nf7 Ra8 Ng5 Rec8 Ng6 Be5 Nf4 Rd8 Rf6 Bb8 Rd6 Re2 Ba3 e3 Ne4 Rb2 Ba6 e2 Rb6 Rb3 Bb5 Bg5 Ng6 Bc1 Nf4 B5e3 Rd7 Bd4 Bf8 Bc5 Rd6 Qh8 Bc2 Re3 Bd3 Qc3
Kb2nRbb/n2kpn2/3B2rR/2Rb2r1/NN2n1pr/q7/2r5/RB1NN1Q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 h4 b5 a4 d5 c4 b3 f4 g3 f5 g4 c5 e3 Kd3 b4 h5 b2 h6 b3 h7 g2 c6 e2 f6 e1B c7 Kd7 f7 Bb7 c8N Bg7 f8R Ra6 a5 Nf6 Na7 Nc6 Rh5 Ne8 Nb5 Na7 Ra3 Qa8 Nd6 Bg3 Ne4 Rg6 a6 Bb8 Nf3 g1N Rg5 Nh3 Nbc3 b1R Na2 b2 Bf4 Rc1 Nf2 b1N Ne1 Rc2 Nb4 Nd2 Bd6 Ne4 Ra1 Bf6 Rf5 Nhg5 Qc1 Bg7 Nd1 Nf7 Qe3 Rg8 h8R Bf6 Rh7 Bh8 Qg1 Rg5 Rh6 R8g6 Nc3 Rh2 Nd1 Rh4 Rf2 Bc6 Rc2 Bb7 Rc5 Bc6 Kc2 d3+ Kb3 d4 Kc4 d2 Bd3 Bb7 Bb1 d3 Kb3 Bd5+ Ka4 Ng7 Ka5 Ne8 Ne3 d1R Kb6 Rc1 Nd1 Nc6 a7 d2 Nc3 d1B Ka6 B1b3 Nd1 Rc2 Kb6 Bc7+ Ka6 Qd8 Kb7 Bb8 a8N Qa5 Nb6+ Kd8 Ne3 Qa3 Na4 Kd7 Nd1 Na7+ Rc6 Ne5 Ka8 Bg8 Rc4 Nf7 Rc5 Bd5+
7n/b2N1RQ1/2Nq2Nb/4Rr1k/rpK4B/2qB2BB/Np2p2q/r2nn2b w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Kg6 c4 d5 g4 e5 f4 b5 a5 h5 c5 e3 Kd3 b3 g5 h3 a6 e2 c6 e1B a7 h2 c7 b2 Qd2 h4 f5+ Kh5 f6 h3 f7 b4 g6 e4+ Kc2 d3+ Kb3 e3 g7 d4 Nf3 e2 Ra6 Qd6 Rc6 Bb7 c8N Nh6 g8N Na6 Nb6 Nc5+ Kc4 Bf2 Qc3 d2 Ne5 d1R Nbd7 d3 Ng6 d2 Qg7 Nd3 N8e7 Ne1 Rc7 Bc6 Rg1 h1Q Nc3 h2 Bh3 Qf3 Na2 h1Q Rg4 Qa3 Re4 Qhh2 Re3 Bh1 Nc6 Be7 f8B Nf7 Re4 Bg5 Be7 Bh6 Bh4 Rhf8 Bg3 Nh8 Re5+ Rf5 Bh4 Rd8 a8B Ba7 Bb7 Ra8 Ba6 Nc2 Bb5 Re1 Rb7 d1N Bf4 Rf1 Bfg3 Ne1 Ba4 Qe3 Bc2 Qc3+ Kb5 Bf2 Bd3 Ra4 Rc7 Ba7 Rb7 Qd2 Kc4 Qe3 Nb6 Qd2 Rf7 Qc3+ Kb5 Nc2 Nf8 Nde3 Nbd7 Ra1 Ng6 Nd1 Bg2 Ne1 Bh3 Qa3 Kc4 Qc3+
4r3/4R3/2nR1bB1/NbqpB1bK/1B2Rnpn/R1qNQ1Br/1p4r1/4qk2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 a4 Ke5 c4 d5 h5 g5 a5 b5 a6 b3 h6 b2 f3 e3 h7 Kf4 c5 Kg3 c6 e5 a7 b4 c7 d3+ Ke1 d2+ Ke2 e4 f4 b3 f5 Ne7 f6 Nbc6 f7 Nf5 Na3 b1R Bg2 b2 Bh3 Qf6 Bf1 Nh4 Nc4 Ba6 c8R Be7 f8B Qc3 Rd8 Bf6 Ra3 Bb5 Rd6 Re8 Qb3 d1N a8R Nf2 R8a7 Nd3 Re7 Ra1 Na5 Nf4+ Kd1 Kf2 Nf3 g3 Ne1 g2 Bd3 Rg8 h8B g1Q Bc2 Kf1 Nd3 Rg7 Bb1 Rh7 Bd2 Rh6 Be1 g4 Bg3 Nf3 Rh2 Rh3 Re2 Bg5 Be5 Nh4 Rh2 Qc4 Rh1 e2+ Kd2 Bf6 Rh2 Qgc5 Qc3 Bg5 Qd4 e1B+ Ke3 Bf6 Rc2 Q4b4 Rc4 Qc3 Bc2 Rd1 Rb4 Rd2 Rc4 Ne6 Rca4 Rg2 Bb1 Ng5 Kf4 e3 Qe4 e2 Qe3 Bf2 Re4 e1Q Rb4 Bg7 Rdd7 Qcc1 Rf7 Rg1 Qd2 Qed1 Ne1 Qb6 Bg6 Qc3 Nd3 Bf6 Re4 Rg2 Bb4 Qbc5 Rd6 Qe1 Rb7 Nhf3 Kf5 Ne6 Re7 Be3 Qc1 Bf4 Qe3 Bh6 Bh7 Bhg5 Kg6 Nh4+ Kh5 Q5c4 Bf5 Qc5 Bg6 Nf4+
q1bB1r2/1q2q3/1p2B1K1/bQ1Bb1q1/1Npk2Nq/4r1n1/3Npn1R/1NBR4 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 c5 a4 e5+ Kh5 c3 g4 h3 d4 c4 f4 h2 a5 c2 g5 e3 f5 e2 f6 e1B a6 e4 a7 e3 g6 e2 f7 b3 g7 b2 Ra4 Nh6 g8N Na6 Bf4 c1Q Qb3 Bd6 f8B Ng4 Qh3 Qe7 Nf3 Nf2 Qf5+ Be5 Ra1 Nc5 Bh3 Nce4 Nh6 Ba5 Ng4 Ng3+ Kh6 Rb8 a8B Qd2 Bg7 Re8 Bf6 Rf8 Kg5 h5 Kg6 h4 B4g5 Qf4 Nfd2 Re8 Rd1 h1Q Ra3 Kd6 d5 Kc5 d6 Kd4 d7 b6 d8N Qhb7 Ra1 Rf8 Rh1 Re8 Rh2 Rf8 Bg2 h3 Bd5 Re8 Be6 Rf8 Na3 b1Q Bh6 Qg1 Rd1 Qgg2 Qb1 Re8 Qb5 Qgc6 Nab1 Qcf3 Rg2 h2 Bhg5 h1Q Rh2 Qfg2 Bh6 Qh3 Bfg5 Qh4 Nc6+ Kd3 Nb4+ Kd4 Bf8 Qbc7 Bad5 Qb7 Bfh6 Rf8 Bg8 Qa8 Bf6 Rb7 Bde6 Rd7 Bgf7 Qhb7 Bd5 Rdd8 Bfe6 Rde8 Bfg5 Qec7 Bd8 Qce7 Bg5 Qe3 Bf7 Bd6 Bc6 Qed7 Bcd5 Re4 Bh6 Be5 Bfe6 Qde7 Nf1+ Qd2 Nd3 Qe3 Bg5 Qf3 Bc1 Qf4 Nfd2 Re3 Nb4 Qfg5#
q1bN4/K1kN4/1p1Rp3/b1b2pB1/q1r1R3/b2R1rn1/B2Nb1n1/1R1N1Qr1 w - - 0 1 illegal: No proof kernel
Q2n2nb/1b4b1/B7/B1Rp1Rbr/1Nb1p2b/1b2KNB1/2N1BpkN/2r2q2 w - - 0 1 illegal: No proof kernel
n1N2kBQ/b1R5/p4p1n/1n2BN2/Nb1K3B/2r5/q2pbrr1/1RBr1Nn1 w - - 0 1 illegal: No possible last move
RN1BbR1q/4N1b1/Q3n2r/5pnb/pnr2K2/3q3B/3B1bp1/3knRBR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 b4 Ke6 c4 Kf5 h4 Ke4 e3 g5 b5 f5 b6 a5 h5 d5 c5 f3 Kg3 d3 b7 a3 c6 f2 h6 a4 h7 a2 c7 d4 Ne2 d2 Rh2 Kd3 e4 Nf6 e5 Bd7 c8R Ne4+ Kg2 g3 Kf3 g2 e6 g1B e7 g4+ Kf4 g3 e8R g2 Re6 Bg7 Rcc6 Ng5 Ra6 Nc6 b8B Be8 Nbc3 Nb4 Bc7 Rc8 Rh1 Qf6 Qb3 d1Q Qc4+ Kc2 Ra8 d3 Bd8 d2 Qa6 Rc4+ Re4 Qf8 Nd5 Qg8 Rb1 a1N Ne7 Nb3 Ra1 Nd4 Re6 Qe1 Rf6 d1B Rf8 Qc3 Bd2 Qd3 Ng3 Nbc6 Be2 f1N Ne4 Ne3 Bg4 Nb4 Bh3 Bf2 Nc5 Bf3 Nd7 Bfh5 Rf7 Qf8 Raf1 Qg8 Nb8 Qf8 Be1 Kd1 Rf6 Nec2 Bd2+ Ne1 Rf7 Rg8 h8B Bh6 Rh7 Rg6 Rf7 Re6 Bf6 Qh8 Rf8 Bg7 Be5 Rh6 Bf6 Nf7 Bh4 Ng5 Bg3 Nbc6 Bh2 Nb4 Bg1 Nde6#
2b1Br2/1q1nNR2/1b3pnN/2kq1K1B/r7/2Np2BQ/n1pB2n1/qNR4q w - - 0 1 illegal: No proof kernel
kBN5/pbrnp3/1R1bB1pR/K1np3N/2nN2n1/1R6/2Q1Rn2/rb1q1N2 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 d5 h4 Kd7 c4 Kc6 b4 Kb7 f4 a3 f5 d3 Kc3 e3 b5 a2 Kb4 g3 h5 e2 f6 e1N h6 g6 c5 g2 f7 d2 b6 Bg7 f8N Bf6 h7 Qe8 Nh3 g1N Qc2 d1B Ne6 Be5 Bf4 Nd3+ Ka5 Bd6 Nd2 Nd7 Nd4 Ngf6 Rb1 a1N Rh2 Ng4 c6+ Kb8 b7 N3c5 Rb2 Bf3 Rg2 Be4 Rb3 Qf7 Bh2 Qf3 Nf4 Nh3 Re2 Nhf2 Nh5 Qh1 Bh3 Qd1 Nf1 Bf5 Qc4 Bb1 Qc2 Rf8 h8R Rf3 Qd2 Nc2 Rh6 Na3 Qc2 Rd3 Rb6 Rb3 Bg3 Rb2 Be5 Ra2 Bh2 Ra1 Bg3 Kc7 b8R Bb7 Be5 Ne3 Be6 Neg4 Rf8 Rb8 Rf3 Rc8 Rfb3 Kb8 c7+ Ka8 Bg3 Rf8 c8N Rf3 Bf4 Rc3 Kb4 Na6+ Ka5 Rc7 Bg3 Nac5 Nc6 Be5 Nd4 Rc6 Bf4 Bc7 Bd2 Bh2 Bf4 Bg3 Bb8 Rc7 Bf5 Bd6 Be6 Nc4+
1b1r2B1/K2r2RB/3RNnn1/2Rr3p/1Qnp4/p2bR1qN/3B3p/1b1kB2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 c4 Kf6 e4 Kg5 g4 a5 b4 d5 b5 h5 c5 f5 c6 h3 e5 h2 e6 d3 e7 a3 e8R d2 c7 f3 Ke3 f4+ Kd4 f2 b6 f3 b7 Kf4 g5 a4 g6 a2 g7 a3 Re2 Nf6 g8B Nbd7 b8B Ra5 Qe1 Ne5 Bh3 f1N Bd7 f2 Ba7 Bd6 Bf5 Ng6 Nc3 Ne3 Nh3+ Kf3 Nb5 d1R+ Bd2 f1B Rg1 Nc4 Bb1 Bg3 Kc5 Bf5 c8R Bc7 Bb6 Ra7 Bba5 Qe7+ Kc6 Qe5 Bab4 Ra5 Kb7 Qg3 Re7 B1d3 Nd4+ Kg4 Ne6 Kf3 Rg2 Rh7 Ree8 Rd7 Bbc3 Rb5+ Ka7 Rd8 Bc2 Rc5 Rb1 a1R Rb6 Rac1 Re7 d4 Rg7 Rcd5 Re2 Rb1 Rd6 Rb7+ Ka6 Ra1 Qb1 Bfe4 Qb4 Rh1 Be1 Bf5 Re5 Bfe4 Bcd2 Ke2 Bb1 Ba5 Rcc7 Kd1 Rc5 Bf5 Re2 Rbd7 Re3 Bc7 Kb7 Bf1 Be4 Bd3 Ka7 Bb1 Bg2 Bfd3 Be4 Nh4 Beh7 Ng6 Qa5 Re7 Qb5 Red7 Qb4 Bb8+
nQ3b2/p4rBq/5Bpn/B4B1b/rp2K1RN/5N1n/1pN1rk1b/N4n1R w - - 0 1 illegal: No proof kernel
1n2b3/2NR1K1b/2N2R2/2N1B3/3pn2N/bpR1rBpp/q1Q1Rn1q/4brk1 w - - 0 1 illegal: No possible last move
n1b1bRn1/R3Br2/n5p1/B2r1R1n/q4Bpq/2Kp2QR/Nb2Np2/k2B4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 e4 Kd6 h4 Ke5 b4 f5 c4 d5 b5 a5 c5 f3 h5 f2 h6 g6 b6 f4 h7 f3 b7 d3 c6 Kd4 c7 a3 e5 a4 e6 a2 e7 a3 e8R Ra5 Qc2 Qh4 Bh3 f1N+ Kd1 d2 Qb3 f2 Kc2 Na6 b8B Ng3 Re7 d1B+ Kd2 Bg7 Re3 Nh5 Bg2 Be2 Re6 Bb5 Rh3 Be8 Qg3 Kc4 Rf6 d4 Kc2 Rd5 Bg5 d3+ Kd2 Kb3 Bf3 Kb2 Rf5 Bd4 Be7 Bf6 Nc3 Bg7 Rd1 a1N Nge2 Nc2 Na2 Nd4 Rc1 Nb5 Ra1 Bcd7 c8R Nbc7 Rd8 Na8 Bc7 Bc8 Ba5 Bb5 Rdf8 Be8 Rc1 Bf6 Rc7 Ka1 Ra7 Bb2 Nac1 Ngf6 Na2 Rg8 h8B Rg7 Bg2 Rh7 Bf3 Ng8 Be5 Rg7 Bf4 Rf7 Nec1 N8c7 Bd1 Na8 Nb4 a2 Ne2 Ba3 Kc3 Bb2+ Kb3 Kb1 Kc4 a1Q Kb3 Qa4+ Kc4 Ba3 Kc3 Ka1 Na2 Bb2+
1n1QN2N/2b1N1Br/1p3nbq/1rRp2K1/4k1BR/4Bp1q/p1n2r2/B3n2N w - - 0 1 illegal: No possible last move
N2nN3/1r3rpb/Brnpq3/1B2b2k/R2Rr1N1/1pBNq3/2p3Kb/B5Q1 w - - 0 1 illegal: No proof kernel
Q1B2q1n/2BR2p1/q1pN2q1/2R2rpN/kB6/2b5/b2NnpNp/Bn2rK2 w - - 0 1 illegal: No possible last move, all moves rejected
5B2/1kp1BB2/RppbBnq1/1Kb1N3/pR3N1N/1rq2bnp/3N2r1/nQ6 w - - 0 1 illegal: No possible last move, all moves rejected
5n2/kp1N1B1p/p3b2p/2NNrqn1/2pb1Br1/K3B3/3RR2r/1NQ1n1qB w - - 0 1 illegal: No proof kernel
4NRBn/1p1nb3/2pn2BN/1b2N2B/1B1Kr2Q/1r1pp3/kN3p2/1rqR3r w - - 0 1 illegal: No possible last move, all moves rejected
4N2n/n1q1bQ1N/R4rp1/3qB3/1Q1q4/N2B1NK1/2qN1nr1/b1kr2B1 w - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 Nh3 c5 Ng1 cxd4 g4 hxg4 b4 a5 b6 Qf6 b5 Qg5 Ra4 Ba6 bxa6 Qd8 Rb4 axb4 Kf2 Ke7 h4 Kd6 c4 Ke5 e4 f5 a7 d5 h5 g6 c5 g3+ Kg2 d3 c6 Kd4 h6 f3+ Kh3 f2 h7 g2 b7 f4 e5 b3 e6 d2 c7 Ke3 c8N d4 e7 b2 e8Q+ Be7 Be2 f1Q Qb3+ d3 Qbf7 f3 Qa2 f2 Nd6 Nh6 Nf3 g1B+ Kg3 Qd1 Rh4 f1R Nc8 Nc6 b8N Qc7+ Nd6 Nf7 Nd7 Rd8 a8N Na7 Na3 b1Q Nf6 Qbc2 Qa4 Rf2 Qd5 Rhf8 h8B Rh2 Bg7 Nh8 Nh7 Rf6 Qb4 Rd7 Bb2 Qa1 Qdb3 d1Q Qf7 d2 Be5 Qd4 Nb6 Qd5 Bf8 Qa1 Bb5 d1N Bd3 Nf2 Ne8 Rd8 Rc4 Qad4 Rc5 Rd7 Ra5 Rdd6 Ra6 Rd7 Be4 Ke2 Bf5 Kd1 Nbc4 Kc1 Bd3 Qa1 Bh6+ Rf4 Bd4 Nh3 Bf2 Qda5 Ncd2 Rf6+ Bf4 Qac3 Bb6 Bd4 Bb5 Be5 Bg1 Nf2 Bf1 Rd3 Be2 Qd5 Ndb1+ Q3d2 Bf1 Ba1 Be5 Qdc3 Be2 Rd1 Nd2 Qcd4 Bd3 Rg2+
5r2/4QqNn/1NqQ2K1/1b2NR2/B1r1N3/5rNp/1k2B1bb/r1q2rQ1 w - - 0 1 legal: proof: g4 a5 a4 b5 d4 e5 b4 c5 h4 cxd4 h5 g5 Bf4 gxf4 g5 e4 Kd2 Nc6 f3 Ne5 Ra3 Ng6 hxg6 exf3 Rb3 f2 axb5 Qe7 b6 Qf6 b5 Qd8 Rb4 axb4 Kd3 Ke7 Ke4 Kd6 Kf5 Kc5 e4 d5+ Ke5 h5 c4 f5 b7 d3 b8N h4 b6 h3 b7 d2 g7 b3 g6 Kb4 c5 f3 c6 f4 c7 d4 Be2 f1B Bd3 f2 Qc1 d1R Be2 d3 Nd2 f3 Nd7 b2 Kf5 Ka3 b8Q Bd6 e5 Ra4 e6 Ba6 c8N Qe7 Ne4 d2 Ne5 Bb5 Nb6 Bg2 Qcc7 Nf6 g8Q f1R g7 b1Q Kg6 f2 Qbb7 Qd7 e7 Nh7 e8N Qb3 Qcc6 Qc8 Qe7 Kb2 Rh2 Bc7 Qcd6 Rda1 Rh1 d1Q Rh2 Bf3 Rg2 Qa2 Rg5 Qc1 Rf5 Qd7 Qgf8 Qdc6 g8B Rd4 Ng7 Bg2 Bb3 Rc4 Ba4 Qb3 Qff6 Rf8 Qg5 Qf3 Ng3 Qfd5 Ngf3 Bb8 Nd2 Qf7+ Kh6 Re1 Qe3 f1R Qg1 Rff4 Nde4 Ref1 Qdf6 Qg8 Kg6 R4f3 Nf7+ Be5 Qfd6 Bf4 Ne5 Qgd5 N3h5 Bh2 Nhg3 Qf7+
QnQB4/6K1/2N1r3/2NR2bn/2r2p1Q/pR1Q2n1/kn1r1R2/1q1rQ2q w - - 0 1 legal: proof: d4 a5 h4 c5 f4 cxd4 b3 g5 f5 gxh4 f6 b5 a4 exf6 axb5 f5 Ra3 f4 Ra1 a4 e3 a3 c3 d3 b6 Ba6 Be2 Bb5 Bg4 Bd6 Bf5 Ba4 bxa4 Bc5 Be6 Bb4 Bb3 Bf8 Bc2 dxc2 Kd2 Ke7 Kd3 Kd6 Kd4 f5 g4 h5 e4 h3 c4 h4 e5+ Ke6 c5 d5 a5 h2 b7 f3 a6 f2 g5 f1Q g6 h3 c6 Bb4 a7 Bd2 g7 Bb4 c7 Nf6 Ra2 Be7 Qd3 Re8 Bg5 c1R Rf2 f4 c8Q+ Qd7 Qd8 Qb5 Nd2 Qb1 Ngf3 Rc2 Ne4 Rd2 Rg1 h1N g8R h2 Rg3 Qfc1 Bh4 Qf1 R8g5 Qfc1 Rh3 Ng3 Rh5 h1R Nc5+ Kf7 Qc8 Rhd1 Qg4 Bd8 e6+ Ke7 Rf5 Kd6 e7 Kc6 Ke5 d4 Qh5 Kb6 Ke6 Ka5 Kf7 Kb4 Bg5 Ra2 Qh4 Rad2 Nb3 Qc6 Ne5 Qh1 Kg7 Ka4 Nc5+ Kb4 Qe3 d3 Nc6+ Kc3 Rd5 Kb2 Qe4 Ka2 Qg6 Re2 Qgh7 d2 Qg6 Re6 Qd3 Rh8 e8Q Be7 Qc8 Rd8 Re5 Rd4 Rd5 Rc4 Qe8 Rde1 Qc8 R1e2 Qe8 d1N Qc8 Nb2 Qe8 Na6 b8Q Rd2 Qbc8 Rb8 a8Q Rb6 Qeh5 Nb8 Qhe2 Rbb4 Qe1 Rc1 Qde3 Rbc4 Qd3 Rcd1 Qf5 Nge4 Rb3 Ng3 Qd3 Nfd7 Bf6 Bd8 Be5 Bg5 Bc7 Nf6 Bd8 Nfh5+
K2Q1Nb1/2NBb1kr/2RN3N/B2r1nn1/1N3B2/1qr5/2q3q1/2Qbq1qq w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 f5 Kd3 Kf7 Kc4 g5 Kd5 a5 h4 d3 e4 g4 c4 f4 h5 a4 h6 d6 e5 a3 h7 a2 c5 a1Q c6 f3 e6+ Kg7 b6 d2 b7 f2 b5 Qb6 e7 Ra3 c7 Qc3 Nf3 g1Q Nh2 Nd7 b8Q Qc2 Nc3 g2 Na2 g3 Nb4 Nc5 Ng4 Rc3 Rh6 Ne4 Bd3 Qe3 b6 f1Q b7 Qfe1 Bb5 Qh1 Bd7 g1Q Ba3 g2 Qc1 d1B e8N+ Kf7 Qa8 Be7 b8B Ng5 Bb2 Ba6 c8N Bc4+ Kc6 d5 Kb7 d4 Bf4 d3 Rc6 d2 Nc7 Kg7 Nd6 Nh6 Qd8 Bg8 Ka8 Nf5 Nh6 Qgf1 Ba3 g1Q Bb2 Qe6 Ba3 Qfg2 Bb2 Qeb3 Ba1 Bf7 Bb2 Rf8 h8N Bg8 Ng6 Rf7 Ba3 Be2 Nf8 d1R Nd3 Rd2 Bb4 Bh5 Ba5 Bd1 Nb4 Rd5 Bh2 Kh8 Bg3 Rh7 Bf4 Kg7
br1Q1q1R/NQR5/1nQ2qQ1/5NqB/3rrk1b/3p4/r3Qn2/RK1b1r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kc1 Ke6 h4 Ke5 e4 a5 b4 d5 c4 f5 h5 g5 h6 f4 b6 a4 c5 f3 c6 a3 c7 a2 h7 d3 b5 d4 b7 d2+ Kb2 f2 b6 d3 Qf3 d1B Bg2 f1R Rh4 Be7 Qf8 Nh6 Qf2 Nd7 b8R Bb7 c8Q Qf8 Qe2 Kf4 Bf3 g2 e5 Ra5 e6 Ba8 b7 Nb6 Rh1 g3 Qc6 g4 Na3 Bh4 e7 Ra4 e8Q Re4 Rc1 a1R Qeg6 Ra2+ Kb1 Qf6 Rc2 Rd8 h8Q Rdd4 Nb5 Qf8 Qe1 Qf6 Be2 Qf8 Nf3 g1R Rc1 g2 Na7 g3 Rd8 Ng4 b8Q+ Qd6 Rd7 Nf2 Rc7 Qf6 Qhd8 Qf8 Rh2 Rh1 Qbb7 g1Q Rh3 g2 Rh2 Bf6 Rh8 Bh4 Qce6 Qh2 Qec6 g1Q Qd2+ Re3 Qdc2 Qg5 Qb2 Re8 Qbc2 Rde4 Nd4 Qgf6 Nf5 Qg1 Bf3 Qgg5 Bh5 Rd4 Qe2 Ree4 Rc5 Rh3 Ra5 Rhe3 Ra6 Re8 Ra5 R3e4 Ra4 Rd2 Ra1 Ra2 Qe7 Rc8 Qd8 Rb8
3bb2N/8/rkBK2bq/q4b1b/Q2n4/1p1BQQ1R/3r2BB/3nnrBR w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Na3 exf4 Qb3 bxa3 Qc2 Qf6 Qd1 Qd8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 b5 e4 h5 d4 f5 g4 a2 a5 h3 g5 b4 g6 b3 a6 f3 a7 h2 g7 c4 d6+ Kb6 d7 h4 d5 h3 d6 f2 Nf3 f4 Nd2 c3 Qe2 c2 Qe1 f3 Ke6 Ne7 g8Q Nf5 e5 Ne3 Qf7 Nd1 Rb1 a1N Bd3 f1B Ne4 f2 Bf4 c1Q Ng5 Nc6 Qe3+ Nd4+ Kd5 Rh4 e6 Be2 e7 f1R e8B Be7 Qf8 Qdc7 d8Q Bh5 d7 Nc2 Nf7 Ne1 Nh8 Rg4 Be5 Rg2 Qff3 Rd2 Bd6 Bg5 Qde7 Bf6 d8B Bf5 Bc6 Bh4 Qe8 Bg5 Rg1 h1B Rg3 h2 Rh3 Bg2 Ra1 h1B Bh2 Bh4 Be7 Bf6 Bed6 Bd8 Bg1 Bhg6 Bdh2 Bh5 Rh4 Bfg6 Q8e4 Bh3 Q4f4 Bhf5 Rh3 Qh7 Q4e4 Qh6 Kd6 Qc3 Qeg4 Qa5 Qgf4 Rb8 a8B Rc8 Bab7 Ra8 Q3g4 Rff2 Be8 Nc3 Bc4 Ra6 Bd3 Nc2 Qh4 Rf3 Bf2 Bg2 Rg1 Ne1 Rh1 Nd1 Bfg1 Rf1 Ba8 Bc6 Qfg3 Ba4 Bg2 Bb5 Qgf3 Bbd7 Bf7 Be8 Bd5 Bef7 Bc6 Be8 Qhf2 Rb2 Qc2 Qb5 Qc4 Rd2 Qa4 Qa5
BBN1bq2/rbn2Nr1/pb2n1k1/1BbB4/2K2brB/3Rq3/4Qq2/1N1Q4 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 f5 Kd3 Kf7 h4 g5 c4 d5 e4 g4 h5 a6 c5 f4 e5 f3 h6 f2 e6+ Kg6 b6 Bd6 c6 Ne7 c7 Rh7 b7 Ra7 b5 Nd7 b8N Bf4 b6 Qf8 b7 Rg7 h7 Nc5+ Kc2 d3+ Kc3 d4+ Kb4 d2 h8Q d3 Nf3 g1R Qh2 g2 Kc4 g3 Ng5 Nd5 e7 Ne6 Nc6 Bd7 c8B Ndc7 b8B Be8 Be2 f1Q Bf3 Qf2 Bd5 Qe3 Nf7 Qf2 Qa4 d1Q Bb7 d2 Ba8 Qde1 Qd1 Qee3 Bb2 Ng5 Bf6 Nge6 Qa4 d1B Bh4 Bf3 Qd1 Re1 Rf1 g1B Qg2 Be4 Qgf3 g2 Qfe2 Qfg3 Rf3 Qgf2 Ncd8 Rf1 Nd6 Re1 Nc8 Rf1 Bdc6 Re1 Bb5 Bb7 Nf7 Rf1 Qa4 Rd1 Rh3 Rd5 Qad1 Rg5 Bc6 Rg4 Bd5 Bgh2 Rf3 g1B Rg3 Qb6 Rc3 Qbe3 Rd3 Bd6+ Kc3 Bhf4 Kc4 Bec6 e8B Bc5 Kc3 Ba4 Bb5 Bb6 Bbc4 Be8 Bb5 Bgh2 Kb3 Bd6 Kc3 Bhf4 Kc4 Bdc5
2R2B2/2nrQRbK/qk3Nr1/3r2QN/2Qbb2n/3pr2n/4Q3/1n2Nr1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 d5 Kd3 Kd7 c4 Kc7 h4 f5 b4 g5 e4 a5 c5 a4 e5 a3 b6+ Kb7 b5 a2 h5 g4 h6 f4 e6 f3 e7 f2 e8N f1R h7 Qd6 Nf3 g1N Qe2 g2 Nc3 g3 Ba3 Ra5 Nf6 Ne7 Ne1 Bg7 Nh5 Re8 h8Q Ng6 Rc1 a1B Ne4 Nh4 Nef6 Nh3 Rg1 Na6 c6+ Ka8 b7+ Ka7 c7 Kb6 b8Q+ Bb7 c8Q Nc7 Rh1 g1N Qd8 g2 Qde7 Qc6 Qc8 Ngf3 Rh2 g1R Rf2 Rg6 Qg4 Na8 Qg5 Nd2 Qhh6 Qe6 Rc8 Nc7 Qh8 Nb1 Qhh6 Ka7 b6+ Ka6 Rf3 Ba8 b7 Kb6 b8Q+ Bb7 Qf8 Qc6 Qb4+ Qb5+ Qc4 Qa6 Bf8 Re3+ Kc2 Rc5 Qa8 Rb5 Qe5 Ra5 Qe7 Bb2 Qg5 d3+ Kd1 d2 Kc2 d4 Rf5 Ree5 Kd3 Rad5 Rf4 Rd7 Rf3 Red5 Ke4 d1R Rf2 d3 Rf3 Rd4+ Ke5 Be4 Rf2 Bf5 Qh1 Be4 Rf4 Rf3 Rf5 Re3 Rf1 Ne8 Ke6 Nc7+ Kf7 Rc1 Kg8 R4d5 Kh7 Rd1 Ng8 Rc1 Rf7 Bbd4 Ngf6 Rd1 Nf3 Rg1 Ne1 Rf1
3rn1Qr/QbNR3q/1Bn3N1/4r3/1B2Bnk1/QK1npq2/Q2b2rr/Q7 w - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 g4 c5 e4 cxd4 a4 gxf4 g5 b5 axb5 fxe4 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 Kf7 h4 Kg6 c4 Kf5 Kc2 a5 b6 e5 b7 d5 c5 g3 c6 a4 h5 a3 h6 d3+ Kb3 a2 g6 a1R g7 e3 b5 e4 h7 g2 c7 f3 b6 d2 Ne2 g1N Kc2 d4 Kb3 f2 Na3 d3 Kb2 Ra2+ Kb3 Nh3 Nb5 R8a5 Rg1 Qe7 Bg2 f1R Nf4 e2 Ba3 e1N Ng6 e3 Qe2 d1R Bb4 Nc6 b8Q d2 b7 Rf2 Qa7 Nf4 b8B Nf6 g8Q Bb7 c8Q+ Kg5 Bh1+ Rg2 Bc7 Ne8 Bb6 Ned3 Nc7 Re5 Qca8 Qg7 Qf2 Kg4 Qa3 Bc5 Q8a7 Bd4 Rf1 Bc3 Re1 Rh2 Be4 Nb2 Bh1 Qh6 Ne7+ Qg6 Qc4 Rf8 Qcf1 Qe4 h8Q Qh7 Ng6 Rg8 Qg7 Rh8 Be4 Rc1 Qf7 d1Q+ Qc2 Qf3 Qg8 Rd1 Qce2 Rd3 Rd1 Rd8 Rd7 Nbd3 Qa1 Be1 Qc2 Bc3 Qcb1 Rag2 Qba2 Bd2
3Nq3/q4Qrb/3B1rqn/BpRrRr2/k3BQ2/2qn1Q1b/K2Bq3/7B w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 g3 cxd4 Nf3 e5 Ng1 exf4 Kd2 f3 Bb2 f2 Ba3 h5 Nc3 f5 Bc1 f4 Nd5 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 a4 b5 e4 d5 c4 Kd7 Kc2 Kc6 Kb3 g5 h4 d3 a5 d4 h5 g3 a6 d2 a7 g4 c5 g2 e5 d3 e6 g3 e7 Bh3 e8Q+ Nd7 f5 Nh6 f6 Rg8 f7 Rg7 Ne2 g1Q f8B g2 Qf7 Qe8 Bd6 Rd8 Ka2 Ne5 Nf4 Rd7 Qa4 d1Q Bd2 Qc1 Ne6 Qc3 Re1 Rd8 Be2 f1R Qa3 Kd5 a8B+ Kc4 c6 Qa7 c7 g1Q Be4 f2 B2f3 Qg6 Qf4 Rdd7 Nd8 Rdf7 Rh2 Rf5 Bh1 Rf6 Re2 Rd1 Rg2 f1R Rg5 Rf2 Qh4 R2f5 c8Q+ Qc5 Qd7 Qa7 Bc7 Kc5 Qf4 Kc4 Qf7+ Kc5 Bc1 d2 Ba5 Nd3 Re3 Re1 Re2 d1Q Bd2 Rd5 Re5 Rf1 Re1 Qe2 Rc1 Rg1 Qb3 Rg5 Qd1 Rgf5 Rc2 Ng4 h6 Kc4 h7 Nh6 h8B b3+ Kb1 b2 Ka2 Qef2 Qdf3 Qe2 Kb1 Kb3 Rc1 Ka4 Ka2 Qc8 Rc5 b1B+ Ka1 Bc2 Ka2 Rg8 Bg7 Qcc7 Bf8 Rg7 Bd6 Qcc6 Rc3 Qcc5 Rc4+ Qb4 Rc8 Qc3 Rc5 Qg5 Bb8 Ne1 Re6 Rfe5 Bf5+ Be4 Bd6 Nd3 Bh7 Qg4 Qh2 Rh5 Re5 Bf5 Bg6 Qge4 Qhf4 Rg5 Bh5 Bh7 Bg6 Rh5 Q4g3 Qg4 Be4 Rhf5 Qgf4 Qg6
2Q3N1/bnQQp3/1R2b3/bq1b2NK/1rq1R3/b7/kbNQQqB1/1b4r1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 g4 fxe4 f4 a5 f5 axb4 Bg5 h6 Bc1 Nc6 g5 Ne5 Bf4 Ng4 Be3 N4f6 gxf6 Qc7 Bf4 Qd8 Bg5 hxg5 Ke2 Kf7 h4 b5 c4 d5 a4 d3+ Ke3 d2 h5 d4+ Ke2 g4 h6 g5 c5 b3 h7 b4 a5 e3 c6 g3 Kf3 d3 Kg4 g2 a6 e2 c7 e1B a7 b2 Qe2 d1Q Ra6 b3 Nd2 b1Q Rh5 b2 Qf3 Qb3 Ra2 Qc4+ Qf4 Rb8 a8Q Bg7 Qa7 Be6 c8N Qb6 Ra1 Qf2 Ne4 d2 Nb6 d1B+ Nf3 g1B Nd5 Ba5 Bg2 Bb3 Rh4 Nh6+ Kh5 g4 Qfc7 g3 Ne1 Rb4 Nc2 Rg8 h8Q Qbf1 Qd4 b1B Qd2 Qb5 Ra2 Qfc4 Rb2 B3a2 Bf1 g2 Ng5+ Kf8 Rd4 Nf7 Re4 Nd6 f7 Nb7 Nf6 Bh2 Rb3 g1B Bg2 Bd6 Qh7 Bh8 Qe2 Rg6 Ng8 Bb2 Qh8 Bc5 Qd4 Ba7 Qcd7 Bh2 Qdd3 Bd6 Qdd2 Kg7 Nh6 Kf6 f8Q+ Bf7 Qfd8 Bd5 Nf3 Rg7 Ng8+ Kf7 f6 Bdc5 Bf1 Rg1 Bg2 Be6 Rd3 Bb3 Rd6 B3a2 Rb6 Bd5 Q7c7 Bd6 Ne5+ Ke6 f7 Bc6 f8Q Qb3 Qd4 Ra4 Qdd1 Bda3 Kg4 Rb4 Kh5 Q3d3 Qde8 Kd5 Nf3 Bd7 Qf6 Be6 Ng5 Qdd4 Qcd7+ Kc5 Qc1 Bad5 Qe5 Qc3 Qcd2 Qcd4 Qed1 Kc4 Qec8+ Kb3 Qec7 Ka2 Q1e2 Qdc4
rQ1N1Nq1/B1N1rbqq/8/NK2nQqk/1r2R1q1/3p2Q1/2Bn4/nq2N3 w - - 0 1 illegal: No possible last move, all moves rejected
1qnnR3/2Q1b1n1/2K1kNQ1/2nR1N2/2pbB1N1/2brq2n/Q4q2/Q2b2Q1 w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Nd4 b5 Nf3 h6 Ng1 f3 Bb2 f4 Bf6 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 Ke7 d4 c5 e4 g4 a4 g5 h4 g3+ Ke1 c3 d5 c2 Kd2 c1B+ Kd3 b3 h5 g2 e5 b4 Kc4 b2 Kb5 f2 e6 f3 a5 b3 h6 c4 a6 g4 h7 g3 a7 Nc6 a8Q Qe8 Qa2 Nd8+ Kb6 Bd2 Na3 b1N Nh3 g1N Bd3 f1Q Nf2 b2 Nc2 g2 Ne3 Bc3 Be4 Nd2 Nfg4 f2 Rh5 Nb3 f6+ Kd6 f7 b1Q e7 Nh3 Qe1 g1B Nf5+ Kd7 d6 Ke6 d7 Nc5+ Kc7 Qc1 Rb1 Qe3 Rb8 Qg2 Qea1 f1N Rg5 Ng3 Ra8 Ndb7 d8Q Qgf2 Rb8 Qb5 e8N Ne7 Nef6 Nh5 Ra8 Rg8 h8Q Ng7 Qh5 Rh8 Qdd1 Nd8 Qg6 Bb7 Rh5 Nc8 Qd4 Be7 f8Q Rh7 Qh8 Rh6 Qhh7 Bc6 Rb8 Qb1 Qd1 Ba4 Qc1 Bd1 Ra8 Nf7 Kc6 Qb8 Qcb1 Bh2 Qb6 Bhe5 Qg8 Rh7 Qgd8 Rh8 Qdc7 Rd8 Qbb1 Rd3 Rg5 Be2 Qg1 Bed4 Rh5 Bd1 Rg5 Qbb2 Rh5 Ncd6 Re8 Nc8 Nh4 Qb3 Rd5 Qb8 Nf5 Nd8+
n1K4Q/rQ3R1p/2p1nQn1/k2qrb2/N5N1/q1b2Q1r/2B1b2N/RQ2q3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 e5 Ba3 exf4 axb5 d5 b6 dxc4 b5 Nh6 Bd6 Ng8 Bb4 axb4 Kf2 Kd7 Kf3 f5 g4 c6 e4 b3 d4 h3 e5 b2 g5 h2 g6 c3 d5 c2 g7 c1N b7 Kc7 e6 Kb6 e7 Nb3 e8N Na6 d6 Nc7 d7 Bb4 Bd3 Ra7 Bc2 Ne7 g8Q Ng6 Nf6 Nc5 Nc3 b1Q Na4+ Ka5 b8Q Qa2 b6 N5e6 b7 Bc3 Ng4 Qa3 Qa8 Qg5 b8Q Qd8 Qab7 Na8 Qf7 Re8 Qf6 Re7 Qbb1 Qg8 Q8b7 Re8 Kf2 f3 Kg3 f2 Nf3 f1Q Qe2 Qd1 Rf1 h1R Nfh2 f4+ Kf3 Re7 Ke4 f3 Kf5 f2 Qf3 Qe1 d8Q+ Nb6 Qdd7 Na8 Qe8 Qf7 Qh8 Re8 Rg1 f1B Rg2 Re7 Rd2 Qg8 Rd7 Be2 Rc7 Qd8 Rd7 Re8 Rf7 Qd5+ Ne5 Nef4+ Qd7 Qad6 Nf1 Rh4 Nh2 Re6 Qde7 Qa3 Qeb7 Qdd1 Neg4 Rh3 Qfe7 Re5+ Kf6 Be6 Qd6 Nf8 Ke7 N8g6+ Kd8 Bd7 Qdf6 Bf5+ Qd3 Ne6+ Kc8 Qdd2 Qf3 Qd5
3n1b2/K2pQp2/1R1QbB2/4r1n1/Qr3R1b/N3qr1k/q3Nqn1/Q1N2Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kg4 e4+ Kh4 e5 g5 b6 a5 Kb5 g4 c4 a4 e6 d3 e7 a3 e8Q a2 c5 d2 c6 Qf6 c7 Qg6 b7 Ra3 Bb2 Ne7 Bf6+ Qg5+ Kb6 Rh5 b5 Nf5 Ne2 g1N Qe7 g2 Nc1 g3 Qf1 Nc6 b8N Nd8 Nc6 d1R Nd4 Ba6 c8Q Ne3 Qc6 Nh3 Nde2 g1Q Ka7 g2 b6 Qf2 b7 g1B b8Q Bc4+ Qa4 Rd4 Qbd6 Rad3 Na3 Ng2 Rb1 a1Q Rb5 Qa2 Rb6 Kg4 Qc5 Qh6 Qcd6 Ng5 h4 Be6 Rh3 Re4 Rf3 Rb4 Rf4+ Kh3 Ka6 Nf3 Ka7 Re5 h5 Qg5 h6 Rc3 Rf5 Qge3 h7 Ng5 Rf4 Rd3 Ka6 Bh2 Ka7 Bg3 h8Q+ Bh4 Qh7 Rc3 Qb1 Qeg3 Qa1 Rf3 Qd5 Qe3 Qdd6 Qgf2
3K4/nB4RN/1n2R1n1/r1B1q3/k1bBnpQ1/1bR1R3/1n1rQq1p/4qR2 w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 axb4 e5 cxd4 e6 fxe6 Ke2 e5 Ke1 e4 g4 Nf6 h4 Nd5 f5 Nc6 Nc3 Ne5 Nce2 Nc6 Nf4 gxf4 g5 Nf6 g6 Nb8 Nh3 Bh6 Ng1 Bg5 hxg5 Ng8 Ke2 h5 c4 d5 a4 Kd7 g7 Kc6 f6 e5 a5 b5 c5 e3 Kd3 e4+ Ke2 h4 g6 h3 f7 h2 f8B d3+ Ke1 e2 Kd2 b3 Kc3 e1Q+ Kd4 b4 Ke5 Kb5 c6 b2 a6 b1N c7 d4 a7 b3 Bb2 e3 Bd6 e2 Bb4 d2 B4c3 d3 Bh3 Qg5+ Kd6 Na3 Bg2 Qf2 Bd4 e1Q Nh3 Ne7 g8Q Ka4 g7 Nd7 Bc5 Ng6 Qe2 d1N Bb7 d2 Rf1 Nb6 Bbd4 Be6 c8R b2 Kc7 Qe5+ Kd8 b1N Ng5 Nbc3 Nh7 Bc4 Rb1 Ne4 Rb3 Nb5 Re3 Nf8 Qe6 Nb2 g8R d1B Q6g4 Bdb3 Rg7 Rg8 Rf7 Rg5 Rg7 Rb8 a8R+ Na7 Ba6 Rb7 Rc6 Re7 Bb7 Ng6 Re6 Rc7 Rc8 Rh5 Bf8 Rc5 Rcc7 Ra5 Bfc5 Rh3 Rc3 Rd3 Rce7 Rd2 Re8 Qh5 R8e7 Nd6 Ree3 Ne4 Re6 Qe5
2q4r/3n1k2/BQ2bb1q/N1Q5/1p3R1n/N2BNnK1/3pb2r/1bBbB2B w - - 0 1 legal: proof: f4 a5 b4 axb4 d4 c5 e4 cxd4 a4 f5 g4 g5 Ra3 h6 Rg3 h5 exf5 gxf4 g5 Ra5 Rg2 Ra8 Rg4 hxg4 Kf2 b5 h4 d5 c4 e5 h5 d3 f6 f3 h6 b3 f7+ Ke7 g6 b4 h7 e4 c5 b2 a5 d2 a6 e3+ Kg3 d4 a7 d3 c6 f2 g7 e2 c7 e1Q Na3 b1B Nf3 Bf5 c8B Qe3 Ba6 Qh6 Ne1 Nd7 Nec2 Be6 Ne3 Qc8 Rh4 Rb8 Qe1 d1B a8B d2 Bh1 Rb5 Bd3 Rh5 Qg1 f1B Qf2 Bfe2 Qg1 Qf6 Qf2 Nh6 g8N+ Kd8 Ne7 Bg7 f8B Ke8 Nc6 Kf7 Qg1 Qg6 Na5 Bf6 Bd6 Qg7 Qf2 Qg6 Qf5 Qg5 Qc5 Nf5+ Kg2 g3 Rf4 Qh6 Be7 Be5 Bh4 Bf6 Kh3 g2 Kh2 Rd8 h8Q g1N Kg2 Nf3 Be1 N5h4+ Kg3 Ng2 Qb6 Rh2 Qc5 Ngh4 Qb6 Ke7 Qg8 Rf8 Qg5 Rh8 Qgc5+ Kf7
5N2/r1N2QN1/4b2R/nnq5/2Bn2k1/Kp2n1r1/4pbqR/Nr2NQQq w - - 0 1 illegal: No possible last move
3k2q1/N5nR/2p1RNn1/3B2K1/p1nbQq1r/2Q5/NN1q2N1/1qrr2Qb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 a5 b4 h5 g4 c3 d4 h3 e4 h2 e5 h4 b6 c2 b7 h3 e6 a4 g5 Rh6 d5 Bd6 e7 Nf6 b5 Bc5 b6 Rh5 d6 Nd5 g6 Bf2 g7 Nc6 b8N Bb7 g8N Ne3 Bc4 Rh4 Na6 Rc8 Bd5 Nc4 Nc3 Bd4 Nb4 Kd7 Bd2 c1Q Nca2 Qc3+ Be3 Qd2 Nd3 Ke8 Ne2 N6e5+ Kf2 f3 Kg3 f2 Bf4 f1R Nb2 Bc6 b7 Ng6 b8Q Bb7 Qc2 Rd1 Qc3 Bc6 Re1 h1Q Qa7 h2 Rb1 Qf1 Ra1 h1Q Qb6 Bf6 Qg1 Bd4 Rc1 Kd7 Rb1 Qe4 Rc1 Qb1 Rc2 Ra8 Nf6+ Kc8 Rc1 Qg8 Rc2 Ra5 Rc1 Rc5 e8Q+ Kb7 Qe4 Kc8 d7+ Kd8 Be3 Bb7 Nf4 Rc6 Ng2 Ba8 Bf2 f4+ Kf3 Rh7 Kg4 f3 Kf5 Rh4 Bg3 f2 Bf4 Bb7 Kg5 Ba8 Be6 Rc5+ Qe5 Bf3 Bd5 Rc6 Qe4 Rc5 Ne3 Bh1 Ng2 Na5 Qc4 Qfd3 Qc2 f1N Qf5 Ng3 Qc4 Nh5 Re6 Qf1 Qe4 Rc6 Qb3 Rc5 Rc4 Rc6 Rb4 Rcc1 Rb7 Nc4 Qc3 Bc5 Re7 Bd4 Rh7 Ng7 Rb6 Nge5 Rd6 Ke7 d8N c6 Nf7 Kf8 Re6 Ng6 Nd6 Qfd3 Qf3 Qf1 Nb5 Kf7 Na7 Kf8 Rd6 Ke7 Re6+ Kd8 Qe4 Qfxf4+
Nq6/2R2rKp/q3k2N/4qbnB/5Rp1/Qb1nnR2/1n3QQ1/b2n1Q1Q w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Qd3 fxg6 Qd2 g5 Qd1 g4 h4 e4 Bd2 e3 Bh3 exd2+ Kf1 Nf6 Kg2 Be7 Kg3 Bf8 Bf1 Ng8 Kh2 Ne7 Kg2 Ng8 Rh2 g5 Na3 b5 Rh1 g3 Nb1 g4 Qc1 Ra6 Qe1 Rg6 Qd1 Rg5 hxg5 Qe7 Nh3 Qf6 Ng1 Qd8 a4 Kf7 e4 d5 f4 b3 c4 b4 a5 b2 a6 d3 g6+ Ke7 f5 b3 c5 d4 a7 Qd5 a8Q Qf7 c6 Bb7 f6+ Kd6 e5+ Ke6 g7 Na6 Nh3 Nb8 Ng5+ Kd5 e6 Qc7 e7 Bc8 e8Q Ne7 f7 Nf5 g8Q Nd7 Qa3 Nc5 Rh3 Bg7 Qef8 Qe5 c7 Bd7 Qe1 d1N c8R d2 Bb5 d3 Rc7 Bf6 Qh1 Nfe3+ Kg1+ g2 Rf3 Bf5 Be8 Bg7 Rf4 Bf6 Kh2 Bg7 Kg3 Bf6 Qh4 g1N Qh1+ Nf3 Qgg7 Rg8 Qgh6 Rg6 Q6h2 Bh8 Q2g2 Rf6 Ra2 Nc3 Ra1 d1B Nd2 b1Q Nc4 Qa2 Rb1 Bc2 Rf1 b2 Rf2 b1Q Rf1 Qe7 Nb6+ Ke5 Na8 d2 Rf2 d1N Rf1 N3a4 Rf2 Ng1 Kh4 Nh3 Kh5 Nd3 R2f3 Qee6 Qfc5+ Qad5 f8Q Qb8 Qb5 Qa6 Nf7+ Ke6 Nh6 Qe5 Qbb2 Bb3 Qbf2 Bg7 Qff1 Nab2 Qfc5 Nc2 Qcf2 Ng5 Rf7 Nce3 Qfh4 Qe4 Qhf2 Nbc4 Rc7 Rf7 Ng8 Ba1 Kh6 Rf6+ Kg7 Qe5 Nh6 Ncb2 Bh5 Rf7#
b4K2/nn2p2R/Qr1n2B1/B4rrN/3qN1qk/1q3qN1/4p2q/QB3BB1 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 d4 f5 a4 fxe4 Ra3 c5 Rg3 cxd4 Rg4 Bg7 f5 Be5 g3 Bf4 gxf4 Na6 Rh4 g4 Rh6 Nb8 Rg6 hxg6 Kf2 Kf7 Kg3 Kf6 h4 d5 c4 b5 c5 e3 h5 b3 Kh4 b2 c6 b4 h6 d3 a5 d2 a6 g3 c7 g5+ Kh5 d4 a7 b3 h7 d3 Qf3 d1N Na3 b1Q Qb7 g2 Nc4 g4 Ne2 g1Q Ng3 b2 Nd6 d2 Qa6 Bb7 c8B Nc3 Rh2 d1Q Bd2 Ne4 Ba5 Nc5 Nde4+ Kf7 f6 Nc6 f5 Nh6 Bd7 Rf8 h8Q Qf3 Kg5 Rb8 a8B Na7 Bdb5 e2 Bd3 Qe1 Bb1 Qef2 Rh3 Qfh2 Rh4 Ke8 Kg6 Nf7 Kg7 Qdd4 Rh7 Bd5 Bb7 Bc6 Bc8 Ba8 Be6 Rb4 Bc4 Kd7 Bcd3 Nb7 Bdc2 Rb6 Bd3 Ne5 f7 Qgg2 f6 Ke6 Nc3 Qgh3 Bg6 Qh5 Nce4 Q5h3 Bd3 b1Q Bc2 Qbb3 Bb1 Re8 f8B Nf7 Kg8 Rc8 Kg7 Rc5 Kg8 Qh4 Bh6 Rf5 Be3 Ke5 Bg1 Kf4 Kf8 Qh5 Nf2 Kg5 Nfe4+ Kh4 Qg7 Nh6 f7 Qg5 Nh1 g3 Qe5 g2 Nhg3 Qgg4 Qh8 Qd6 Qa1 Qf6 Ke8 Qd4 f8N Qb5+ Nd7 Qbb3 Nh5 Nf7 Kf8 Nb5 Neg3 Na7 Be3 g1R Nc5 Rg2 Bg1 Qge4 Nh1 Rgg5 N1g3 Qeg4 Nce4 Nfd6+
3B1Q2/bqnrr2R/5B1R/N2RpB1B/2n4r/Kp1r1rQ1/3nk1n1/4Bn2 w - - 0 1 legal: proof: d4 c5 g4 cxd4 f4 h5 e4 hxg4 f5 b6 Nd2 a5 b4 axb4 Ndf3 Ba6 Ng5 Bd3 Ne6 fxe6 f6 e5 Ne2 Bc4 Ng1 Be6 Rb1 Bf5 exf5 e4 Ra1 Ra5 Bh3 Ra3 Bf1 Ra8 Kd2 Kf7 a4 g5 c4 e5 Kc2 d5 Kb2 b5 h4 b3 a5 b4 h5 d3 a6 d4 a7 e3 c5 e2 c6 e1N h6 d2 h7 g3 c7 d3 c8Q g4 Qc5 g2 Qb6 g3 Rh2 Nc6 Qd4 Qe7 Ne2 g1N Ra4 g2 Qc5 Na5 Ra2 Ngf3 Qb5 g1R Bh3 Qb7 Qc5 Rg7 Nd4 Ne7 Nc6 Ng2 Qe1 d1R Qg3 Nd5 Bd2 Nc7 Be1 d2 Qd6 Rd8 a8B Rd7 Bg4 Be7 Rh6 Nh2 Be2 Rf8 h8R Nf1 R8h7 Ra1 Bg4 d1R Bf3 Rd3 Bh5+ Kg8 Ra3 Rc1 Ra1 Rc4 Rd1 Rh4 Qc5 Rf7 Rd2 Bd6 Rd1 Rfe7 f7+ Kf8 Qcf2 Bc5 Rd2 Rf3 Rd5 Ba7 Qc5 Rgg4 Qd6 Rd4 Qc5 Qc8 Bb7 Qa8 Bc8 Rdd3 Qcf2 Nb7 Qc5 Nd6 Na5 Qb7 Qcf2 Re8 Qc5 Ke7 f6+ Ke6 f8B Kf5 f7 Ke4 Bg7 Ree7 f8B Nc4+ Kc1 Rhf4 Bf6 b2+ Kb1 Rh4 Ka2 b1N Qcf2 Rf7 B8e7 Nbd2 Bd8 Rg7 Qc5 Rge7 Qd6 Ke3 Qc5+ Ke2 Qd6 Rg7 Qf8 Rde7 Bf5 Rd7 Be8 Rge7 Bh5 Nd6 Kb2 b3 Ka3 N6c4+
5Rr1/1N3nq1/1q3rbN/6kq/1QK2nN1/pQQ2qrB/Q4qQp/1R1r4 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 b5 Be3 bxa4 Kd2 f3 Bf4 Be7 g6 Bg5 hxg5 exf4 Bg2 f2 Bh3 Nh6 Bf1 Ng8 Kd3 Ke7 e4 h5 b4 d5 c4 f5 b5 a5 e5 f3 e6 h4 b6 a3 g7 f4 c5 a2 c6 h3 g6 Kf6 e7 h2 e8N+ Kg5 c7 a4 b7 a3 Qe2 Nd7 b8Q Ne7 g8Q Rh3 g7 Rg3 Qe4 Ne5+ Kd2 d3 Kc3 d2 Qc4 d1R Qcb3 d4+ Kb4 d3 Nd6 d2 Nf5 Nf7 Kc4 Nd5 Nh6 Bf5 c8Q Bg6 Bh3 f1R Q8b4 f2 Nc3 f3 Rb1 a1Q Na4 Qb6 Nc5 Nf4 Nb7 Rb8 Qc6 Qe5 Qgc8 Qf6 g8Q Qg7 Q8e6 Rc8 Qh8 Rg8 Qa2 Rde1 Qe3 d1Q Qeb3 Re6 Qe4 Rf6 Qec2 Re1 Qcd2 f1Q+ Qe2 f2 Nf3+ Kh5 Ne5+ Kg5 Neg4 Qg2 Qef3 f1Q+ Qfe2 Qff3 Rf1 Qgg1 Qg2 Qgf2 Qh7 Bh5 Qhc2 Bg6 Qcc3 Qde2+ Qd3 Qe5 Qdc3 Rc1 Re1 Qea5 Re8 Rd1 Rf8 Qf5 Ne3 Qh5 Neg4 Qf3 Qge2 Qc2 Qg2 Qcf2
R1n2Q2/B2K1r2/B5p1/5q2/B1r2rrk/1n1nbQp1/1q4B1/BnQnRN2 w - - 0 1 illegal: No possible last move
1n6/Q1N2rK1/3QRRR1/1pq1r3/1R1b1n1r/p2rNp2/nQrk3b/3B2R1 w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 a4 gxh4 b5 b6 a5 bxa5 b6 a4 c4 d6 b7 Qe7 d3 Bg4 Be3 Bc8 Bb6 Be6 c5 Bc4 dxc4 cxb6 Na3 Qd7 Nb1 Qd8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 g3 h5 c6 a5 e3 h3 c7 f3 c8R b5 c5 h2 c6 h4 c7 a3 Bg2 h3 Qb3 f2 Bf1 a2 Qb4 a4 Qb3 d5 Be2 f1R Qb2 a3 Bd1 Rf2 Nd2 Qe7 Nf1 Nf6 Rb1 a1B Ne2 Rh5 Rg1 h1R Nc3 h2 e4+ Kg5 e5 Rc2 g4 Kf4 e6 Re5 g5 Nh5 g6 f5 g7 Qc5+ Kd3 d4 g8R Be7 Rcf8 Bd6 c8Q Bc7 R1g6 Rg1 e7 h1R e8R Rg3+ Ne3 Rh4 Rff6 Bd6 Ne2+ Kf3 Re7 f4 Qf8 Kf2 R8g7 Ke1 Nc3 Rgg2 Qa2 Rf5 Ke4 f3+ Rg4 d3 Rb4 d2 Rff7 Na6 b8Q Rh3 Ncd5 Rh4 Qa7 Bd4 Re6 Bh2 Be2 d1N Nc7 Nf4 Qd6 Rf8 Qb2 Nb8 R7g6 Rd2 R4g5 Rd3 Rg4 Rfh5 Rg3 Qc2 R3g5 Nc3+ Kf5 Na2 Bd1 Qc4 Ncd5 Rc2 Nc7 Rh6 Rg1+ Kd2 Kg5 Rhh8 Rff6 Re8 Re5 Rhf8 Re4 Qc5+ Re5 Rg4+ Kh6 Rh4+ Kg7 Bg3 Re7 Bh2 Rf7 Re6 Re7 Re5 Ree6 Rf7+
Nb1n2Bn/5B2/1pK1BQ2/3B2nB/1Rb1rb2/1r3p2/1p1n1QR1/3k1qQr w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 g5 d4 c5 b4 cxd4 Na3 axb4 Nc4 h6 Bf4 gxf4 g5 h5 Ne3 Ra4 Ng4 hxg4 Qb1 Ra3 Qd1 Ra8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 a4 Ke3 h4 f5 c4 d5 e6 d3 a5 b6 a6 f3 a7 b3 e7 f4 e8B g3 c5 g2 g6 b2 g7 f2 c6 d4 c7 d2 h5 f3 h6 d3 h7 Nd7 Ra3 Ne7 g8Q Nc5 Qc2 d1N Bh5 Be6 c8B Bh6 Rh2 Nb7 Ra4 d2 Rb4 Bf4 Nh3 g1B Rg2 Ng6 Kc6 Bc4 Ng5 Nc3 Ne6 d1R Nc7 Re1 Be6 Bgh2 Qg7 Rc8 a8B Qd3 Qf6 Rhe8 h8Q Ne4 Qg8 Nh8 Qg3 Ng5 Qb1 Kd2 e4 Ngf7 e5 Ng5 Be2 f1N Qf2 Bhg3 Bd1+ Qe2 Bb3 Rcd8 Bg8 Rd3 e6 Rc3 Ba2 Rb3 e7 Bh2 Qbg6 Kd1 Be6 Nd2 Qg8 Rc8 e8B Rh1 B8f7 Re8 Qgg6 Qf1 Qg8 Nc5 Bb7 Bhg3 Na8 Bb8 Qgg6 Bgf4 Bg8 Re7 Bef7 Re8 Bc8 Re4 Bce6 Nh3 Qgg3 Ng5 Qg1 Nb7 Q3f2 Re2 Bb1 Ree3 Be4 Re1 B4d5 Ree3 Qc3 Re4 Qf6 Nd8+
1bk1q3/4q1pR/bB4p1/N2qq1pQ/1rB1N1q1/1B3B2/1Q1n2nQ/KBr5 w - - 0 1 legal: proof: b4 a5 a4 axb4 d4 e5 g4 c5 f4 cxd4 fxe5 f6 g5 Bc5 g6 hxg6 Ra3 Bd6 Rg3 Bf8 Rg5 fxg5 Kd2 b5 c4 d5 Kc2 Kd7 Kb2 d3 h4 d4 e4 d2 a5 d3 c5 b3 e6+ Kc7 a6 b4 c6 Bc5 e5 Rh6 a7 Bd6 e7 Bc5 e8Q Nd7 h5 Ngf6 e6 Ng4 e7 Ndf6 Nh3 Ba6 Nf2 Rb8 a8B Ne4 Na3 Ne3 Ka1 Bd6 Nc4 Ng2 Na5 Kc8 c7 Rh8 Qf7 Qe8 h6 Rg8 Qdf3 d1Q h7 d2 Qh5 Qg4 h8Q d1Q Bc4 Qd5 Be3 Nd2 Ne4 Bf4 Qf6 b2+ Ka2 Rb5 Bb6 Rc5 Bb3 Rc1 Qh2 Bg3 Q8h5 Rf8 Qd4 Rf4 Bc6 Qed7 e8B Qe7 Bf7 Qee5 Bc4 b3+ Ka3 b1Q Qb2 Qbd3 Ba8 Qde6 Bc6 Qe8 Bb7+ Kd7 Ba8 Qdd5 c8B+ Ke7 Bcb7 Kd7 Bc6+ Kc8 B6b5 Qed8 Bd3 Qde8 Bbc4 Nf3 Bb1 Nd2 Qc3 b2 Ka2 Rf3 Qc2 Rb3 Bg8 Rb4 Bb3+ Qc5 Bgc4 Qcd5 Nf6 Qde6 Q2h4 Nf1 Bf3 Qe3 Qh6 Qed4 Ne4 Qd3 Qe2 Qd2 B1c2 Q6e7 Rh3 Bf4 Qg3 Bb8 Qh2 Qd5 Qh4 Qge6 Qg4 Qef5 Rh7 Qfd7 Qgh5 Qg4 Qd2 b1Q+ Ka3 Re1 Qc1 Qde5 Qb2 Qd1 Ka2 Qdd5 Bb1 Nd2 Ka1 Rc1
1b5b/3pRb1n/B4prN/R1Q5/5kp1/qBRQ3n/2rqKBB1/b4Br1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 h4 Ke7 b4 Ke6 c4 Kf5 e4+ Ke6 h5 g5 b5 a5 b6 d3 b7 a3 h6 a2 h7 a4 c5 d2+ Ke2 g3 c6 a3 c7 g4 Nh3 Nc6 b8R g2 Rb3 g1Q Rc3 Bb7 c8B Nf6 Qc2 d1R Qd3 Rg8 h8Q Ra6 Be3 Qe7 Nd2 Nb4 Bf2 Bd5 Qh5 Rc6 Ba6 Nh7 Qg5 f6 Qge3 Rg7 Qc5 Rg6 Rh2 Bg7 Bg2 Qd6 Ng5+ Ke7 e6 Bh8 e5 Bc4 Rb1 a1B Rh5 a2 Nf7 Nd5 Nh6 Qh1 Rb5 Rg1 Ra5 Bb2 Rh3 a1B Re3 Bc1 Qd4 Qa3 Qc5+ Kd8 e7+ Kc7 e8B Bcb2 Bf1 Nf4+ Ke1 Nh3 e6 Bc1 e7 Bf7 Ke2 Bcb2 Rb3 Be5 Rc3 Rg3 Bg2 Qhc1 Bf1 Rg1 Re4 Bg8 Bf7 Bd6 Be6 Bf7 e8B Be5 Bd5 Bh2 Qcd4 Kd6 Re3 Be5 Bdg2+ Ke6 Re4 Rc8 Qc5 Rc7 Ng8 Kf5 Re3+ Kf4 Nh6 Bd6 Re5 Rc6 Re7 Bb8 Qa7 Bd5 Bf7 Rc4 Bg8 Be6 Qc5 Bf7 Rb3 Rc2 Rc3 Be8 B8d5 Bf7 Bb3 Qxd2+
qb1B2rK/QpR3rB/2r1Rn1N/Q2q4/Q1pQb1p1/1q3k2/7n/1Qq3R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 a4 g5 a5 b3 h5 b2 e5+ Kc7 e6 Kd6 a6 c4 e7 f3 Kg3 f2 e8Q Rh6 a7 Nd7 Nd2 b1Q Ne2 Nc5 Qea4 Be7 Rg1 Rf6 h6 Ne6 h7 Qb2 h8R Qc7 Rh7 Rb8 a8Q Qd8 Q8a7 Qb5 Bg2 f1Q Be4 Qb3+ Bd3 Bf8 Rc7 Qe8 Qc2 Qd1 Qb1 Rh6 Bb2 Nf6 Bc3 Bd7 Ba5 Bc6 Ra2 Qc1 Rb2 Qd7 Bb6 Re8 Ne4+ Ke7 d6+ Kf7 d5 Kg6 Rf1 Kh5 Rg1 Nd4 Ba5 Nf3 Nd4 Nh2 Re2 Qd8 d7 Qa8 d8Q Bg7 d6 f4+ Kf2 f3 Kg3 f2 d7 f1Q Nf5 Rg6 Nh6 Qf5 Re3 Qd5 Ree1 Re6 Qh8 Re8 d8Q Qdb5 Qdd4 Qd5 Qf8 Bh8 Qfb4 Bg7 Bb6 Bf8 Qba5 Bd6+ Kg2 g3 Kh3 g2 Re3 Rg7 Ree1 Kg6 Re3 g4+ Kh4 Be5 Rf7 Bd6 Bd8 Bb8 Rc7 Re6 Ng8 Kf5 Nh6+ Kf4 Re2 Nh5 Nf6+ Kf3 Nfg8 Nf6 Bh7 Rd6 Rd1 g1R Re6 Rg2 Rg1 Re2 Nf5 Nd7 Kh5 Re3 Kh6 Nf6 Qdd3 Be8 Qdd4 Bg6 Ng3 Be4 Nf5 Re7 Kg6 Rc6 Kh6 Re8 Kg7 Re7+ Kh8 Rg7 Nfh6 Bc2 Rd6 Re8 Re6 Bf5 Q7b6 Be4 Qba7 Rexg8+
Q1n4B/p5Q1/rn1rQ1R1/npR2B2/NKQb2pk/Q4nq1/1B6/nb5n w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 Bh3 hxg4 Bg2 Nd7 Bf1 Nb8 a4 Qd7 b4 Qd6 a5 Qd8 a6 bxa6 b5 Nh6 b6 Ng8 Na3 Bb7 Nb5 axb5 Ra5 Ba6 Ra1 Bc8 d4 g3 Kd2 Ke7 Kc3 Kf6 e4 Kg5 e5 f5 b7 c5 h3 g2 e6 c4 e7 Nc6 e8Q Na5 b8B Ne7 d6 Qc7 d7 Rh6 d8Q Ra6 Ba3 f3 d5 f4 d6 f2 d7 f3 Bd3 f1N Qc2 f2 Bb2 Nd2 Rc1 f1N Kb4 c3 Ne2 Ndc4 Rg1 Nb6 h4+ Kg4 h5 g5 h6 Ng3 h7 Bg7 h8Q Nh1 Qb3 c2 Nc3 Qe5 Bh7 Kh4 Na4 Qh2 Qef7 Bd4 Qde8 Qf4 d8Q Bf5 Qa3 Bd3 Rce1 c1N Re5 Bb1 Rc5 Ncb3 Be5 Na1 Qc4 Rb8 Qdd7 Rd8 Qde6 Rd6 Qa8 Nec8 Qf8 Qe3 Bh8 Qd3 Qg7 Qg6 Rf1 g1N Rf6 Qd3 Be4 g4 Bf5 Qg3 Rg6 Nf3
3nkqq1/2rRB3/8/R1RQQ1Np/rpb3rQ/1Q1b2K1/2q1p3/qN3Qb1 w - - 0 1 legal: proof: f4 a5 g4 f5 h4 c5 d4 cxd4 b4 axb4 e4 g6 h5 Nc6 Ba6 Ne5 g5 Ng4 Bc4 N4h6 Be6 fxe4 f5 Ng4 f6 Ne5 Bf5 gxf5 Nd2 Ra7 Nb1 Ng6 hxg6 Ra8 Kf2 d5 a4 b5 c4 h5 a5 e5 g7 b3 a6 b2 c5 e3+ Kg2 f4 c6 f3+ Kh2 f2 a7 f1Q g6 e2 c7 e1Q Ra5 d3 Ne2 d2 Na3 b1B Bb2 e4 Bc1 e3 Nf4 d4 Qg4 d1R Nh3 e2 Bg5 d3 Qh4 Be6 c8R d2 Rc5 Ne7 g8Q b4 g7 Bd3 Nb1 Rh7 Qh8 Nc6 g8Q Rc7 Rg1 Ba2 Qb3 Rc1 Rg4 d1Q Rd4 Rc4 Rd7 Qc2 Qg7 Qec3 Kg3 Qa1 Qh8 Qc8 Qg7 Nd8 Qh8 Rb8 a8Q Rbb7 Qg7 Ra7 Qc6 Qf5 Qd5 Qg6 Qh8 Qg8 Qg7 Rf4 Qh8 Bd6 Qg7 Be5 Qh8 Bd4 f7+ Kf8 Qhe5 Bg1 Qbc3 Bac4 Qb3 Bg6 Bf6 Bgd3+ Ng5 Ra8 Rab5 Ra4 Ra5 Qcc3 Qf5 Qc2 Be7+ Kg7 Qfe5+ Kg6 f8Q Rg4+ Kf3 Qa8 Qff4 Qc8 Qc1 Qa8 Qf1 Qc8 Ne6 Kf7 Ng5+ Ke8 Rd6 Re4 Kg3 Qf5 Rd7 Qff8 Qg2 Rd4 Qf1 Rg4+
r2B1n2/q1N1Nq1n/p3Q2R/1n3N2/q1K1pbn1/5QQ1/rRp1N2N/3k2r1 w - - 0 1 legal: proof: c4 d5 a4 dxc4 e4 f5 a5 fxe4 a6 bxa6 Ra3 a5 Ra1 a4 f4 h5 g4 Qd5 f5 Be6 f6 Bf5 gxf5 Qd4 Be2 Qd8 Bg4 hxg4 Ke2 Kd7 d4 Kd6 b4 Kd5 h4 c5 f7 e5 b5 g5 b6 a3 h5 g3 f6 c3 b7 Kc4 h6 c2 d5 Kb3 d6 c4 d7 c3 h7 g2 Rh5 e3 Kd3 a6 Ra2 g4 Rh1 e4+ Kd4 g3 Qe1 e2 Rh3 Bd6 f8N Nh6 f7 Bf4 Qf2 e1N Ng6 Qc7 d8Q Ng4 f8N Qf7 Nf3 g1Q Rh6 g2 Qc8 Nd7 Ne6 Nf8 Nh2 Nf3+ Kd5 Rg8 h8N Ng5 Ne7 Ngh7 Qf3 Qa7 Nhg6 g1R Nf5 Rg7 Be3 c1N Nge7 Ne2 Bb6 Nd4 b8Q Nb5 Bd8 Rg2 Re2 a2 Qc6 a1Q Rb2+ Ka4 Kc4 Re2 Rb3 Ra2 Rb2 c2 Nc3+ Ka3 Qd5 Rg5 Nc7 Rg8 Qe6 Rg5 Rb1 Rg7 Rd1 Kb2 Ne2 Rg6 Rd6 Kb1 Rb6 Rg7 Ned4 Kc1 Ne2+ Kd1 Rb7 Ngf6 Rb6 Rg1 Rb7 Ng4 Rb6 Nc3 Rb2 Nb5 Qb6 Qc1 Qbe3 Qd2 Qef2 Qa5 Q2g3 Qa4+
nrq2N2/pq3Q1p/2knQ1b1/4B3/q2Qn2b/bNK2p2/2N3Bq/R2QQ3 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 g5 a4 b5 h4 bxa4 f4 gxf4 g5 e5 Ra3 Na6 Re3 Rb8 Ra3 Rb5 g6 e4 Rf3 Rg5 hxg5 exf3 Kd2 d5 e4 Kd7 c4 f5 g7 d3 c5 d4 b5 f2 g6 f3 e5 f4 b6 a3 b7 a2 b8Q a1B e6+ Kc6 e7 Nf6 g8N Nc7 g7 Na8 Qc2 Bf5 Qd1 Bg6 Qb2 Ne8 Ne2 Qc8 Bg2 f1Q Na3 Qg1 Nf6 Qh2 g8Q Nd6 Nd7 Qb7 e8Q Be7 Qc3 Bb2 Qe6 Bh4 Nc2 Ba3 Q8f7 Rb8 Bb2 Qc8 Nf8 Qb7 Bf1 f2 Nc1 f3 Bg2 f1Q Nb3 Qfg1 Qee1 Qc8 Kc1 d2+ Kb1 d3 Qd4 Qe3 Ka2 Qe7 Ka1 Kb5 c6 Qeb7 c7 Kc6 Bc3 Bb4 Kb2 Bc5 Qde2 d1Q Rf1 d2 Qed3 Qd8 c8Q+ Qdc7 Qce6 Qcc8 Qg1 Bb4 Be5 Ba3+ Kc3 Qa6 Ne3 Qab7 Qc2 Qa1+ Qb2 Qd1 Nc2 Qa1 Qd4 Qa2 Qbb1 d1N+ Kd2 Nc3 Qbd1 Ne4+ Kd3 Bc5 Rg1 Qa4 Rh1 Ng3+ Kc3 Ba3 Qee3 Bc5 Qde2 Qa2 Ra1 Qa4 Qed1 Ba3 Qee1 Ne4+
K1b4n/Q2r1p2/4Q3/RbQr2p1/bBBN3Q/Q1b1b2N/q2kBp2/r4r2 w - - 0 1 legal: proof: g4 a5 h4 e5 a4 c5 f4 exf4 d4 cxd4 b4 axb4 g5 Nc6 h5 Nh6 gxh6 Ne7 Ra3 Ng8 Rg3 Ra6 Rg5 Ra8 Rg6 hxg6 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 c4 d5 e3 f3 a5 b3 a6 d3 a7 g5 c5 b2 c6 d4 c7 g4 Kb6 g5 h7 d2 h6 d3 Rh3 g3 Qb3 d1R Bd2 g2 Be2 Bb4 Na3 b1B Nc2 Ne7 Qa3 Bc3 Nd4 Ng6 Rg3 Rg8 h8Q Qd5 h7 Rd8 Nh3 g1B Qhf8 Qa2 h8Q Rd5 Qfc5 Rd7 Be1 d2 Bc4 Bd3 Qh4+ Nf4 Rg2 Ra1 Rh2 d1B Rh1 Rb8 a8Q Ba4 Ka7 Rd5 Rh2 b5 Rg2 b4 Rg3 Bcd7 c8B b3 B8a6 Rd8 Qb8 b2 Ka8 Bc8 Qba7 b1R Bab5 Bb2 Bb4 Rf1 Rg2 Bc3 Rb2 Ke5 e4 Be3 Rb3 f2 Ba6 Kf6 e5+ Kg6 e6 R8d7 e7 Kf6 e8Q Ng6 Qd8+ Ke5 Qdb6 Nh8 Bab5 Bf4 Rb2 Ke4 Rd2 Ke3 Qe6+ Re5 Rc2 Be2 Rc1 Kd2 Re1 Bd3 Ba6 Red5 Re5 Bb1 Be2 Be3 Bac4 Bd3 Qf8 R5d6 Ra5 Rd5 Qfc5 Rd8 Bb3 Bdb5 Bbc4 R8d7
6B1/R1br1q2/pn2QR2/rp1RR1Bn/4B3/pkp2q2/r1b2R1Q/2Kq1N2 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 h4 gxh4 c4 Ba6 c5 Bc8 c6 dxc6 a4 Qd4 Nc3 bxa4 b5 Qd7 b6 Qd8 Nb5 cxb5 g4 Kd7 d4 Kc6 Kd2 Kd5 f4 h5 g5 c5 g6 e5 f6 e4 f5 c4 g7 a3 f7 e3+ Kc2 e2 b7 e1R f6 c3 Bh3 Kc4 d5 Rh7 d6 Qe8 d7 Bd6 d8R Bc7 f8R Nd7 b8Q Qf7 Ne2 Nb6 Bg5 Bf5+ Kc1 Bc2 Bg2 h3 Ng3 h2 Be4 h4 Nf1 h3 Rd5 Re2 Qe1 Kb3 Re8 Rg2 Ra2 Re2 Rg1 h1Q Ree5 h2 Rg3 Qf3 Rg4 Qf8 f7 Nf6 g8B h1Q Rg1 Qe8 f8R Nh5 Rf6 Rd7 Rg2 Qf7 Rf2 Bd3 Rd2 Bb1 R2d4 Ra2 Ra4 Bc2 Qf8 Re8 Qh6 Re6 Ra5 Rc6 Ra6 Rc4 Qd2 Ra4 Qf4 Ra5 Qh2 Nf4 Q6h3 Nh5 Qe6 Nc4 Rb6 a6 Rb7 Nb6 Ra7 Qg1 Re2 Qd4 Rf2 Qdd1+
3qB3/K2bQn2/1ppp1n2/2RB3p/1Q1N1Q2/q1nB1r2/1b1N1n2/2QQ1rk1 w - - 0 1 legal: proof: d4 a5 h4 g5 b4 gxh4 c4 axb4 c5 d5 cxd6 Kd7 Kd2 c6 Ke1 Ke6 d7 Qa5 d8Q Qb6 e4 Kf6 a4 Qc5 e5+ Kg7 e6 f6 d5 Ra7 d6 Kg6 d7 Qa5 Bb2 Ra8 Be5 fxe5 Ra3 Qc7 Rd3 Qb6 Rd6 exd6 Kd2 Kf5 f4 Ke4 g4 h5 e7 b3 Kc3 Ke3 e8B Kf2 a5 b2 f5 h3 a6 e4 a7 h2 f6 e3 g5 e2 g6 e1Q+ Nd2 Qe2 g7 Ne7 g8B Qea6 f7 Nf5 Qe7 Qd8 Kb4 b1N Bd3 Bg7 f8Q Bb2 Ne2 Nc3 Bd5 Rg8 Qff7 Rg1 Nd4 Rf1 Rg1 h1N Rg5 Qa1 Qe4 Qa6 Qfe7 Nh6 Rf5+ Kg1 Qf4 Qc7 d8Q Nd7 Qeh4 Rb8 a8Q Nf7 Qde7 Qd8 Re5 Qa1 Qa3 Nf6 Rf5 Bd7 Qhe1 Qc8 Ka5 Nf2 Kb6 Qd8+ Ka7 b6 Qc1 Qa2 Qed1 Qa1 Ba2 Rc8 Qb4 Rb8 Rc5 Ra8+ Kb7 Ra3 Bd5 Rb3 Qb1 Qa3 Qbc1 Na4 Ka7 Rc3 Be2 Rf3 Bd3 Nc3+
k6B/rr5p/1QK1r2N/1pQNR2p/6RR/Rr2p2n/bq1R1r2/1b2b2N w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 h4 fxe4 g4 a5 h5 axb4 h6 g6 g5 Ra4 Be2 Ra5 Bh5 gxh5 g6 Nf6 g7 Na6 g8N Nc5 Bd2 Ne6 Bc1 Ng7 hxg7 Ra8 Ke2 b5 a4 d5 f4 Kd7 c4 Kc6 c5 Kb7 f5 e5 a5 b3 Rh4 e3 Kf3 b2 Ra2 e2 Nh6 e1R g8R d3 Ne2 d4 Nbc3 b1B Rgg4 d2 Bb2 d3 Ng3 Nd5 f6 Ra7 f7 Ka8 a6 Be6 c6 Nf4 c7 Qd4 Nh1 Bb4 Nd5 Rb8 f8R Nh3 Rf5 Rbb7 Rfg5 Re4 Qg1 d1R Qe3 Qc3 Qb6 Rd2 Ba1 Rh2 Rd2 Qb2 Rf5 Ree2 Rfg5 Ref2+ Ke4 Rf6 Rf5 Rf2 Rfg5 Bg8 Rf5 Re6 c8Q+ Rb8 Qcc5 Rbb7 Nf6 Bf7 Kd5 e4 Rfg5 e3 Re5 Re8+ Kc6 Bfa2 Nd5 Ree7 Rc2 Be1 Rd2 Qa3 Rc2 d2 Bb2 d1R Rd2 Rbd7 Bd4 Qb2 Bc3 Rab7 a7 Re8 Rf5 Rc1 Bh8 Rc3 Re5 Rb3 Nf5 Rbb8 Qd8 Rf7 Nh6 Ree7 Kd6 Kb7 a8R Re8 Ra3 Ree7 Qd4 Re6+ Kc5 Ra8 Qa5 Kb8 Qb6+ Rb7 Qc4 Ra7 Qd4 Re8 Kc6 Ka8 Qdc5 Re6+
qQ1r4/2NR2n1/N2qBnN1/N2pB3/kbQ5/pn2Kn1b/3p2pQ/1N2n3 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Bd2 d5 Bc1 d4 b4 a5 Ra3 Ra6 Rc3 Rf6 Rc6 Rf5 gxf5 h6 Rg6 h5 Rg4 hxg4 Kf2 g5 e4 d5 c4 Kd7 h4 Kc6 h5 d3 b5+ Kc5 f6 Kb4 b6 a3 c5 d2 f7 a4 h6 a2 b7 a1Q c6 Na6 b8N Qd6 c7 Nf6 e5 Nc5 e6 Nb3 e7 a3 e8N Ka4 Bh3 g3+ Kf1 g4 h7 f2 Ke2 f1N Nf3 g2 Bb2 g3 Be6 Be7 f8N Ne3 Qg1 Nc2 Na6 Ne1 Nd4 f3+ Ke3 f2 Qh2 g1N Nc6 g2 Be5 Ngf3 Ng6 Bf8 Na5 f1N+ Kf2 Ng3 Ke3 Rg8 h8Q Ngh5 Rf1 Bd7 c8Q Ng7 Nec7 Be7 Qb8 Rd8 Q8h4+ Qd4+ Ke2 Q4b4 Qc4 Qc6 Ke3 Qa8 Bf7 Bh3 Be6 Ng5 Rf4 Ngf3 Rh4 Bf8 Rh8 Be7 Rf8 Bd6 Rf7 Bf8 Rd7 Be7 Qc5 Qb6 Qd4+ Bb4 Qc5 Qbc6 Qc4 Qd6
1QQB3Q/2R2q2/QK1R2p1/pnB3pb/r1r1Q1p1/5rbN/n4pnk/1R6 w - - 0 1 legal: proof: f4 f5 g4 c5 a4 b5 axb5 e6 d4 cxd4 g5 h6 Bh3 hxg5 Bg4 Kf7 Nd2 Ke8 Ndf3 Bd6 Nh4 fxg4 f5 Be7 f6 Bf8 Nf5 exf5 Kf2 Kf7 h4 Ke6 b4 Ke5 e4 a5 c4 d5 h5 f4 h6 d3 b6 f3 Ke3 f2 b5 d2 h7 Qe8 b7 Ba3 c5 Qf8 b6 Nc6 b8R Bd7 b7 Nh6 f7 Be8 Qe2 d1R Bb2+ Rd4 Qa6 Nb4 c6 Na2 c7 Bd6 Rd8 Rc8 b8Q Qg8 f8B Nf7 Ba3 Ra4 Be7 d4+ Kd3 Kf4 e5 Kg3 e6 Kg2 Rb1 Bg3 Nh3 Nd6 Bc5 Bh5 Rhc1 Nb5 Rd6 g6 Bd8 Kh2 e7 Qf7 e8Q Rf8 Ke4 d3+ Rc4 d2 h8Q Na7 Kd4 d1N Qe7 Ne3 Qe4 Nb4 Rc3 Ng2 Rcc1 Na2+ Rc4 Qf4 Kd5 Nb5 Kc6 Qf3 Kb6 Qf7 Bf6 Rcd8 c8Q Rd7 Bd8 Rc7 Bb4 Rc5 Rc3 Rc4 Ba3 Rd4 Rc7 Rdc4 Bc5 Qe8 Rcc6 Rf3 Rc7 Qf7
2Rb3K/R2b4/1kbRRp1N/7n/2Q1p1Rr/2Rr2n1/Br2R2b/Nr3b2 w - - 0 1 legal: proof: f4 a5 b4 c5 d4 cxd4 a4 e5 h4 g5 b5 e4 e3 Qe7 Bb2 Qe5 fxe5 dxe3 Ba3 gxh4 Bb4 axb4 a5 b6 axb6 Ba6 Ra5 Bb7 Ra1 Bc8 Ke2 Kd8 c4 h5 g4 d5 b7 Kc7 g5 f6 g6 b3 g7 b2 c5 h3 c6 d4 e6 h2 e7 h4 e8R h3 Qb3 Ra4 Na3 b1R Qc4 Be7 Nf3 Rh4 Nc2 Nd7 b8R Ra3 Rb6 Nf8 Ng5 Ng6 Nf7 Nh6 g8R Nf5 Nh6 Bd8 Re6 Rd3 Ra7+ Bb7 Rg1 h1R Rg4 h2 Na1 Rb4 Bh3 Rhb1 Rba6 h1B b6+ Kb8 Rg3 Bg2 c7+ Kc8 Rg4 Bc6 b7+ Kd7 b8R R4b3 Nc2 R3b2 Rb3 Kc8 Rc3 Bd7 Ra8+ Kb7 Rad6 Bc6 c8R Kb6 Rf8 Nge7 Rh8 Ng7 Ra7 Nef5 Rh7 Nh5 Ra2 Rg1 Rha7 Bf1+ Ke1 e2 Kf2 Nfg3 Na1 Rb5 Rd2 Rb2 Rdc2 Rd1 Rd2 d3 Ke3 e1B Re2 d2 Kd4 Nh1 Ke3 Bg3 Kd4 Bh2 Ke3 N5g3 Kf4 Nh5+ Kf5 N1g3+ Kg6 Rdb1 Kh7 d1B Kh8 Ba4 Rg5 Rh1 Bf5 Rd1 Rg4 Rd3 Bh7 Bg2 Bg8 Rhb1 Bf7 Bf1 Qb3+ Bb5 Re8 Rd5 Qb4 Rd4 Bb3 Rd3 Qc4 Ba4 Ba2 Bb5 Rd4 Bd7 Rd6+ Bbc6 Re5 Rc1 Ree6 Rcb1
q1qr4/3Qpr2/NR1bN1k1/1bp5/p2q2N1/K2R1bN1/B3n2N/2N1N1r1 w - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 g5 h4 gxh4 b4 a5 Ke2 a4 Ba3 c3 Bb2 Nc6 Ke1 Na5 bxa5 cxb2 f4 Kf7 g4 c5 d4 h5 Kd2 e3+ Kc3 h3 a6 e2 a7 e1Q+ Nd2 b1B Kb2 h2 b6 h4 g5 h3 d5 Bb7 g6+ Kf6 f5 Ba2 d6 Kg7 f6+ Kh6 f7 Qe8 d7 Qe6 d8N Q8c6 g7 Ba6 b7 Kg5 b8N B2c4 Rb1 Kf6 Ngf3 Bd3 Nb7 Bac4 Nd6 Bh7 Na6 Qce4 Ne1 Qg6 Nb3 Qc8 Nf5 Qg1 Ka3 Nh6 g8N+ Kg6 Nf6 Bg7 Qd7 Bb5 Ng4 Qd4 Ng3 Rf8 Nc1 Nf5 Bc4 Be5 Ba2 Bd6 Rf1 h1R Nh2 Bg8 Rf3 Rg1 Rd3 Rb8 a8N Bh7 Nhf3 h2 N8c7 h1Q Nh2 Qa8 Nd5 Rd8 Nf6 Bg8 Nh1 Ng3 Nfg4 Ne2 f8N+ Kh5 Rb2 Bd5 Ne6 Bf3 Rb4 Kg6 Ng3 Rf8 Rb2 Rf7 Rb1 Qcb7 Rb4 Rd8 Rbb3 Qbc8 Rb2 Bbc6 Rb6 Bb5
1Bqn1qnn/2B2r1b/4K1k1/q3n1B1/4n1N1/4BrBq/B1QB1n2/N4n1R w - - 0 1 illegal: No possible last move
1n2BB2/1k3r1K/3Rr1Nb/3pq1B1/1n1B2BB/b2b2pB/1q2q2Q/1N1nn3 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 g5 Kd3 a5 Ke4 a4 Kf5 a3 h4 f6 Kg6 d5 c4 Kd7 e4 Kc7 e5 d3 b6+ Kb7 b5 g4 h5 f5 c5 d2 h6 f4 e6 f3 h7 a2 e7 a1Q e8B f2 Nh3 g1N Qc2 d1N Nf4 g2 Rh6 Ra7 c6+ Ka8 c7 Ba3 Qe2 Ba6 c8B Rf7 b7+ Ka7 Qe5 Nf3 Qd6 g1B Bh3 f1Q Qe5 Nd7 b8B+ Ka8 b6 Qe2 Bd2 Qb2 Bd6 Nb8 Bf8 Qc7 b7+ Ka7 Be1 Be3 Bh4 Ne1 Qh5 g3 Bcg4 Nd7 b8B+ Kb7 Ba7 Nb8 Bd4 Bb5 Bdf6 Qce5 Bfg5 Bd3+ Bf5 Qf1 Qe2 Bd2 Qh2 Qfe2 Bg4 Nf6 Bh3 Ne4 Bfg4 Bc1 Bc5 Rhf8 h8B Re7 Bg7 Re6+ Kh7 Nec3+ Ng6 Na2 Bd4 Rf5 Bf8 Nb4 Nf4 Ra6 Rd6 Rf7+ Kg8 Be3 Ng6 Bc1 Bge7 Bh6 Beg5 Rf6 Kh7 Rc6 Rd8 Rce6 Rd6 Rf7+
3bQ3/q2BB1p1/3K4/3B2B1/1nBk1n1p/2rr2Br/2pNbNB1/1b2b1Rr w - - 0 1 legal: proof: g4 d5 c4 f5 b4 fxg4 h4 gxh3 d4 a5 bxa5 e6 a4 dxc4 d5 e5 Ra3 Na6 Rd3 Nb8 Rd4 exd4 Kd2 Kf7 e4 Kf6 f4 h5 d6 c5 d7 b5 a6 b4 a5 h2 f5 Ke5 f6 b3 a7 c3+ Kd3 c2 Kc4 d3 f7 b2 a6 d2 Bd3 Nf6 Qe2 d1R Nd2 b1B Nh3 Be7 f8B Qa5 d8B Nd5 Rg1 h1R Nf2 Nc6 Ba3 Rb8 a8B c1B a7 Rb3 Qe3 Bg5 Bfe7 Nf4 Bf1 Nb4 Bd5 h4 a8B Qa7 Kb5 Bf6 Bfc4 Bg4 Qe1 Kd4 e5 Rd3 e6 Be2 Bg2 Rg8 Bad5 Rhh3 Bd6 Bb2 e7 Bc3 e8B Bg5 Bd7 Rh8 B8e7 Rc8 Bc1 Bf6 Bf8 Bd8 Bfe7 Rc7 Ba2 c4 Bb3 Nh5 Bg3 Nf4 Ba2 Bb2 Bb3 c3 Ba2 c2 Bac4 Bg4 Qe6 Bc3 Qf7 Be2 Qe8 Na2 Bg5 Rf1 Ba3 Ba5 Bae7 Nb4 Bb3 Rcc3 Bbc4 Na2 Kc6 Nb4+ Kd6 Re1 Bgf3 Rc1 Rg2 Rch1 Rg1 Rb3 Bfe4 Rbc3 Bg2 Rb3 Ng4 Na6 Nf1 Be1 Nf2 Rbc3 Nd2 Nb4
2Q1nrBR/N5K1/2nqq2Q/k7/n1Brq2r/3QRnn1/4Q1n1/B3q2R w - - 0 1 legal: proof: f4 b5 d4 a5 b4 axb4 f5 c5 a3 cxd4 f6 b3 Kd2 b2 Qe1 b4 Qd1 b3 Ke1 exf6 Bh6 f5 Bc1 f4 Nh3 f5 Nd2 Bb7 Nf3 Bb4+ axb4 h5 g4 Be4 Ne5 f3 Ng1 f4 Ra7 Nf6 Ra1 Bf5 gxf5 Ng8 Ng4 hxg4 Kd2 b1Q Kd3 g5 Ke4 d5+ Ke5 Kd7 e4 Kc6 h4 Kb6 c4 f2 b5 f3 f6 b2 h5 g3 f7 d3 f8R d2 h6 g2 h7 d4 Qb3 d1R Ne2 g1N Nc3 d3 Ra3 d2 Qa2 Ra4 c5+ Ka5 b6 g4 c6 g3 b7 g2 c7 Qd7 c8Q Nf6 Nb5 Qc6 Bd3 f1N Na7 f2 Qh3 Rg8 h8Q Ne3 Q8h6 f1N Qc4 Qb6 Qg4 Qc6 Qe2 Ng3 Qd4 Qa2 Rc3 b1Q Bb2 Rb4 Ba1 Qa3 Qd6 Nf3+ Ke6 g1Q Kf7 Ng2 e5 Rf4 e6 Rh4 e7 Ne8 Bc4 Qe1 Re3 Qbe4 Qd7 Qc8 Qdd6 Nc6 b8Q Qcg4 Qc8 Rh8 Qd4 Qd6 Rg8 Qge6+ Kf8 Rh7 Rh8 Rf7+ Kg8 Nc7 e8B Rff4+ Kg7 Rf8 Bg6 Ne8+ Kh7 Rc1 Bf5 d1N Qdd2+ Nc3 Bg6 Q4g4 Bf7 Rd1 Bg8 Qgf4 Qc2 Rd4 Qed3 Na4 Qce2 Nf6+ Kg6 Qfe4+ Kg7 Ne8+
1B1RK2B/1NBQqr2/2Rr2rb/6qq/b1Q1n2k/Q7/1bp5/1Bn1R2n w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 Nc3 d5 cxd5 b5 Ne4 bxa4 b5 a3 Bxa3 a4 Bc1 a3 Nf6+ Ke7 Ne8 Kxe8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 d4 h5 e4 f5 g4 c4 d6 h3 b6 h2 b7 c3 d7 a2 Ke6 h4 Kf7 h3 d5 Kh4 g5 f3 g6 f2 d6 f4 g7 f3 e5 Qg5 d8B Na6 b8B Nc5 d7 Nd3 e6 Nf6 g8Q Rh6 e7 Ra6 e8Q Ne4 Bb2 Rhg6 Qa4 Bh6 Rc1 a1B Qa3 Rad6 Ne2 Ba6 Qe7 Bb5 Nf4 Ba4 Rg1 h1N Ne6 h2 Bdc7 Qf6+ Ke8 Qg5 Be2 f1R Nd8 f2 Re1 Nc1 Nb7 c2 Bh8 Bb5 Bc4 Ba4 Ba2 Bb2 Rg2 Nhg3 Qef7 h1Q Bb1 Qh2 Qf5 Nh1 Qb5 Qh3 d8R Qhg4 Qd7 Q4h5 Be5 Rg1 Bc3 f1Q Bh8 Qff6 Qc4 Rf1 Rge2 Qd4 Re3 Rf7 Rb3 Qf2 Rb6 Qff6 Rc6 Qe7+
r1Bb1qN1/1Q2N2p/2R2R1r/q2q1R2/2n1K1k1/1Qr5/nb2N1p1/3Qq1Q1 w - - 0 1 legal: proof: f4 a5 g4 c5 a4 b5 d4 cxd4 axb5 e6 f5 exf5 b6 fxg4 Be3 g3 Bg5 Be7 Bc1 Bf8 b4 g5 h3 g2 b5 g4 Kd2 g3 Ba3 Bb7 Bb4 Bf3 Ke1 Bg4 hxg4 axb4 Kd2 Ke7 Kd3 Ke6 e4 f5 c4 d5 b7 f4 e5 f3 b6 f2 g5 Kf5 c5 b3 c6 b2 c7 Bg7 c8Q+ Nd7 b8N Nf6 b7 Ne4 g6 Nc3 e6 Na2 e7 Qa5 Qcc1 Rc8 e8R Nb6 Re6 Nc4 Nd2 b1R Ne4 Rb6 Ne2 g1B Nf6 g2 Ng8 Kg4 Rh5 Bf6 g7 Bd8 Qe3 Bh2 Rf5 Be5 Ref6 Rba6 Rf8 Rh6 Nc6 Rc7 Nce7 Rc5 b8Q Rc8 Kc2 d3+ Kb3 d2 Kc2 d4 Kd3 Bf6 Ke4 d3 Rc1 Bb2 Qb7 Rc7 R8f6 Rcc8 Qdb3 d1Q Qea7 Qde1 Qd1 d2 Qd4 Ne5 Rcc6 Rc7 Qd6 Nc4 Qh2 Rcc8 Qg1 Rc7 Qc2 d1Q Qcb3 Qd6 Qd1 Qde5+ Kd3 Rd7+ Rfd6 Rb8 Rf7 Ne3 Nf6+ Kh3 g8Q Rh4 Nc3 Qh2 Qa6 Rh6 Ke4 Ra8 Qc8 Qg3 Ba6 f1Q Ne2 Qgg5 Qb8 Qgc5 Bc8 Qcb5 Re6 Rd3 Qb7 Rc3 Rf8 Qh5 Re5+ Kh4 Qgb3 Nc4 Nfg8 Qf6 Ree6 Kg4 Rf7 Qg7 Rf2 Qhf7 Rf5 Qgf8 Ref6 Qfd5+
5rq1/1p1N2q1/k1q1Q1p1/1n5R/N1Q1BpRq/N1QR1rn1/6K1/n2N2r1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 e5 b4 exf4 a5 Bd6 b5 Na6 b6 Nb8 a6 axb6 a7 b5 Bb2 b4 Bc1 Na6 g4 f5 Kd2 h6 Ke1 f3 Bg5 hxg5 Kd2 f4 Ke1 Bb8 axb8Q d6 Qc1 Nf6 Qd1 Bf5 gxf5 Ng8 Kf2 Kd7 h4 Kc6 c4 Kb6 e4 d5 e5 g6 h5 b3 f6 g4 e6 d3 e7 d2 e8N d4 f7 b2 f8R d3 h6 Nb4 h7 Ra3 c5+ Ka6 c6 Nc2 c7 Ne7 c8N Nd5 Nh3 Nc3 Qe5 Nb5 Qde2 d1Q Nb6 d2 Nf6 Qc1 Qe6 d1Q Nfd7 Qd5 Qc4 g3+ Kg1 g2 Nf2 Qd4 Rh5 Qg7 Nd1 Qh4 Rd8 Rf8 h8Q Qg8 Ra2 Na1 Bd3 Qc3 Be4 Qcg7 Nd2 b1Q Na4+ Ka7 Rc2 Qc1 Nb1 Rc3 Na3 Rb3 Qh3 Ka6 Kh2 g1R Rg2 f2 Rg4 Rf1 Kg2 Rf3 Qd3 Qc6 Qc4 Qge7 Qf6 Qeg7 Qfe6 Rh1 Qg3 f1N Qe1 Ng3 Qec3 Qd4 Ndb6 Qdg7 Rd3 Re1 Nd7 Rg1+
4r1QB/pb2bKp1/b2k2nq/2N3N1/p2N1b2/4QQ1Q/2p1R1n1/B1B4b w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 Ra3 exf4 Rg3 d5 cxd5 Na6 Ra3 f3 Ra1 f4 b4 h5 Bg2 Qf6 Bh3 Rb8 Ra2 Qa1 Ra3 Rb6 Rd3 Rf6 Ra3 Rf5 gxf5 Qxa3 Bg4 hxg4 Qb3 Rh3 Kd1 Qa1 Nc3 Qa3 Bb2 Bd6 Qc2 Qb3 Nb1 Rh8 Kc1 Qe3 Qd1 Qf2 Kc2 Qf1 Bc1 Bf8 Kc3 Ke7 Kc4 c5 d4 g3 h4 g2 f6+ Kd6 h5 f2 h6 f3 b5 Bd7 h7 Be8 b6 Qe1 e4 f1B+ Qd3 f2 b7 Kd7 b8B Bh5 e5 Qe4 d6 Qf3 d5 Be8 f7 Be2 e6+ Kc8 e7 Kd7 Nd2 f1B Rh2 Qf4+ Ne4 Nf6 Nf3 g1B Nd4 Bg4 Re2 Nb4 Ng5 Ng8 Qh3 Nc2 Bc7 Qe3 Ba5 Qd2 Bc3 Bh2 B3b2 Ne1 Ba1 Kc8 d7+ Kc7 d8N Bf4 Nb7 Bc6 e8Q Bc8 Qee3 Be7 f8Q Ng2 Na5 Kd6 Nab3 B8b7 Qff5 Bf6 Qfe4 Ne7 Q4f3 Ra8 h8B Ng6 Qg1 Kc7 Qge3 Be7 d6+ Kb6 d7 Kc7 Nf5 Re8 Nfd4 Kd6 d8Q+ Bd7 Qc8 Bdc6 Qh7 Be4 Qg8 Bec6 Qch3 Be4 Kb5 c4 Nc5 c3 Kc4 c2 Nc6 Bd3+ Kd4 Bb5+ Ke4 Bc4 Kf5 Bd5 Nd4 Bdc6 Rf2 Bfa6 Re2 Kc7 Ke6 Be4 Kf7 Kd6 Bcb2 Qc1 Qhg4 Qh1 Bc1 Qh6 Qfh3 N2h4 Qh5 Bh1 Q5f3 Ng2
nbQKQ1n1/3BR1Qp/qq3pQB/2R2r1p/1N4p1/2q5/1R2Bk2/3n2q1 w - - 0 1 legal: proof: g4 a5 f4 g6 b4 axb4 h4 e6 h5 gxh5 g5 Qe7 f5 exf5 Nc3 Qd6 Nd5 Qf6 Ne3 Qd8 c4 c5 d3 b5 Qc2 b3 Rh3 b4 Qd1 Ba6 Ng4 fxg4 Rh1 Bb5 cxb5 c4 Bh3 c3 Bf1 Ra7 Rh3 Rc7 Rh1 Rc4 dxc4 Qe7 Nh3 Qf6 Ng1 Qd8 Kf2 Ke7 Kg3 Ke6 Kh4 Kf5 a4 Ke4 a5 d5 a6 b2 b6 b1N c5 c2 c6 b3 c7 d4 c8B d3 a7 b2 a8Q+ Nc6 b7 d2 b8R Ke3 Nf3 Na5 Bd7 Nh6 Nd4 Qb6 g6 Qd6 Kg5 Nf5 g7 Nc4 g8Q Qd5 Kf6 Nc3 Qg6 b1Q Rb2 Ba3 Nc6 Qa5 Qc8 Nh6 Nb4 Rf8 Ke7 Kf2 e4 Qa6 e5 Nb6 e6 Na8 Be2 f6 Rh3 Rd8 Qh1 d1Q Re3 Qg1 Qhb7 Nd1 Re5 Rg8 Rc5 Rd8 Bf4 c1Q Raa2 Rg8 Bg5 Rg7+ Kd8 Ng8 e7 Qc3 e8Q Re7 Qbc7 Re5 Bh6 Rf5 Ra1 Qbd3 Rc1 Qdd6 Re5 Qdb6 Re7 Qce1 Rc5 Qc3 Rd2 Bc1 Rb2 Bf4 Qg7 Qb8 Qb7 Qba7 Qe4 Bb8 Qeg6 Q7b7 Qe6 Qba7 Qef7 Q7b7 Qe8 Qbb6+
4k2q/Q1pp1N2/R1n1p1Np/2n1BQ2/r1q2Qqp/p3Q1r1/KN4R1/4R3 w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 b4 gxh4 Bc4 b5 Bb3 bxa4 c4 axb3 d4 e6 d5 Be7 d6 Bf6 b5 Ba6 b6 Bb5 cxb5 Be7 dxe7 Kf7 Kd2 a5 Kc3 b2 Kb3 e3 e8Q+ Kf6 g4 h6 f4 a4+ Ka2 e2 b7 e1Q b6 Ne7 f5 Ng6 g5+ Kg7 f6+ Kh7 f7 Kg7 f8N Qg3 Qd6 Qg2 Nf3 Ra5 Ne5 Qf2 Bf4 Rd5 Nd2 Qf1 Ndc4 Qc1 Nf7 Na6 b8Q Ne7 b7 Kg8 g6 Nc5 g7 Nc8 Be5 Na7 Re1 Nc6 Qa7 Rd3 b8Q Rg3 Qbb6 Qd1 Qd3 Qg4 Qf5 Qb8 Qb3 Qa8 Qe3 b1Q+ Ka3 Qc1+ Ka2 Qc3 Nb2 Qcd4 Qeb8 Qc4+ Qbb3 Qd8 Qef4 Qf6 Ng6 a3 Rad1 Kh7 Rd2 Ra8 g8R Qg7 Rb8 Qh8 Rb6 Kg8 Rc2 Qd1 Rg2 Qg4 Qb7 Ra4 Qa7 Qh7 Ra6 Qh8 Ne7+ Kf8 Ng6+ Ke8 Ra5 Qa6 Qbe3 Qf1 Ra6 Qc4+
1N3rb1/2Bbr3/6Q1/B3rn1B/Kb2N2R/2rq2qQ/4NqbB/nk1r1Q2 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 e4 Kd6 h4 Ke5 c4 d5 Kc2 a5 Kb3 g5 c5 f5 h5 d3 c6 Kd4 c7 f4 e5 d2 e6 f3 b6 a4+ Ka3 f2 h6 g4 h7 Ra5 e7 Nh6 e8Q Bd7 c8Q Na6 b7 Nc5 b8B Nb3 Qee2 Nf5 Rh3 Na1 Qb3 d1B Qba2 Bb3 Qe6 Bd6 Qe1 Rf8 Bb5 f1B Bc6 Kd3 h8N d4 Qef2 Bg8 Qe1 Re5 Ne2 g1R Ng6 Bg2 Qe6 Kc2 Qf1 d3 Rh4 d2 Bc7 d1R Nbc3 Bc5 Ne4 Kb1 Bb2 Rh1 Ne7 Rh3 Bc3 Bd6 Nc5 Re1 b5 Rd1 Kb4 a3 b6 a2 Ka4 Re1 Ne4 Bb4 b7 Rd1 Rh8 Rh7 Nd5 Re7 b8B Rc1 Be1 Rc3 Bb5 Bf3 Qf7 g2 Nb6 g1Q Qg6 g3 Rh4 g2 Bc6 Qf2 Bb5 Bde6 Be8 Qd3 Nd7 g1Q Bf7 Bg2 Be8 Rec5 Bh2 Qfg3 Bc7 Re5 Nb8 Qgd4 Qg7 Qg1 Bh5 Q1f2 Qg6 Bd7+ Nc6 Ne3 Qg4 Bc5 Qe8 Rc2 Bb6 Nf5 Bd8 Rc1 Bea5 Bb4 Bdc7 Rd1 Nc1 Nc2 Qh3 a1R+ Na2 Kb2 Qg6 Rac1 Nac3 Na1 Ne2 Rc2 Nd4 Rc3 Ne2 Bc8 Nb8 Kb1 Bcb6 Bce6 Bc7 Bd7+
BNrN1n1n/4Q2q/4bQ2/qrB1bb1Q/2K2qQ1/4BNn1/5q2/k2r2rR w - - 0 1 illegal: No possible last move
b1b2r2/1b1nbrBk/Q1Q4B/8/2B1Nb2/R1b1QqnR/7r/2rRn1KR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 c4 f5 b4 Kf7 h4 Kg6 e4 a5 h5+ Kh7 b6 g5 c5 d5 h6 a4 c6 d3 b7 f4 c7 d2+ Ke2 a3 b5 a2 b6 g4 e5 f3+ Ke3 f2 e6 d4+ Ke2 d3+ Ke3 Ne7 Qa4 d1B Nh3 g1N Qa5 d2 Qa3 g2 Ba6 f1R Be2 g3 Bb5 Nd7 b8B Rf7 b7 Bf3 Nf2 d1B Qa6 Bc2 Qc6 Bce4 Bc4 Qe8 Rb1 a1B Qa6 Bc6 Ne4 Bc3 Ba7 Qd8 b8R B6b7 Bd4 Qe8 Bg7 Nf5+ Kd3 Bfb4 e7 Qf8 e8Q Be7 Qc6 Ra2 Ra8 Rb2 Ra3 Rg8 Nf2 Bd5 Rh3 Nf3 Ne4 g1B Bd2 g2 Ke2 Rc2 Rd1 Bh2 Kf2 Ne1 Qa6 Bf4 Kg1 Bdc6 Be3 Ng3 Bc1 Kg6 h7 Rd2 h8R Ba8 Bf6 B6b7 Rh1 Rf2 R8h3 Rh8 Qc6 Rh5 Bg7+ Kh7 Bh6 Rhf5 Be3 Rc2 Bd4 Rc1 Bdg7 R5f6 Kh2 g1R Qa6 Rf1 Qc6 Rf2+ Kg1 Rh2 Qa6 Nc5 Qec6 Nd7 Qcb6 Qe8 Qe3 Rf8 Qc6 Qh5 Qa6 Qf3 Qc6 R6f7 Qa6 Nb8 Qc6 Bg4 c8Q Nd7 Qa6 Ne5 Qcc5 Bgc8 Qcc6 Nd7
3K1B2/b4RN1/1k1r1Nbr/1n5n/R3N1nb/b1R1qrQQ/5n2/1r1QN1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 d5 Kd3 Kd7 c4 Kc7 h4 f5 b4 g5 e4 a5 c5 a4 e5 a3 e6 a2 c6 f4 h5 g4 h6 f3 e7 f2 e8R f1N h7 Qe7 Qe2 Nf6 Qd1 Ra3+ Nc3 Nh2 Bh6 Kb6 c7 Nc6 Nf3 g1R Ne1 g2 Rc1 Bb7 Ra8 a1B Ra4 g3 c8Q Rb3 Qh3 Nh5 Bg7 Rb1 Ne4 Ng4 Rc3 Rf1 Rh2 g1B Rf2 g2 Rf7 Na7 Bh6 Rg8 h8N Rg6 Bg7 Rh6 Ng6 Bc8 Nf4 Bf5 Ne6 Qc5 Rc2 Bd6 Rc3 Bg6 Bf8 Rf5 Ng7 Rf3+ Kd2 Be7 Kc2 Bb2 Kb3 Kb7 b6 d3 b5 d4 Nf5 d2 Ng7 Qg5 Kc4 Qe3 Kd5 d3 Ke6 Ba3 Kd7 Bh4 Ke8+ Ka8 b7+ Kb8 Qb3 d1N Kd7 Ndf2 Qd1 Bh2 Ke8 g1B Kd7 Bhd6 Ke8 Bdc5 Kd7 Bhe7 Ke8 Kc7 b8N d2 b6+ Kb7 Nd7 Bh4 Nf6+ Kc6 b7 Kb6 Kd8 Nb5 Qe2 d1R+ Qd3 Kc6 b8Q Rd2 Qbh2 Kb6 Q2g3 Rdd1 Qd7 Rd6 Rac4 Rd3 Nd6 Ka6 Ne4 Ba7 Ra4+ Kb6 Qd5 Rd2 Qd7 Re2 Qd1 Rd2+ Ke8 Rd6 Ke7 Rc6+ Kd8 Rd6+
2BQq1nr/1r2B2r/7N/2B2RR1/1r2q3/Q2b1nK1/nRr1k2q/R1n1r1Q1 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 g3 cxd4 Nf3 e5 Ng1 exf4 Kd2 f3 Bb2 f2 Ba3 h5 Nc3 f5 Bc1 f4 Nd5 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 e4 Kf7 c4 Kg6 a4 Kh5 h4 d5 e5 b5 e6 g5 c5 g3 c6 Kg4 e7 b3 e8Q g2 f5 d3 Ke3 d2 f6 d4+ Ke4 b2 a5 b1Q+ Qc2 d1R h5 d3 f7 d2 f8B b4 h6 b3 c7 b2 a6 Bf5+ Ke5 Bd3 c8Q+ Nd7+ Ke6 Ra7 h7 Ne5 Bb4 Re1 Qb3 d1N Qg6 Nc3 Rh2 Qe8+ Be7 Rb7 a7 Na2 Ne2 g1N Ng3 Ne2 Be3 Nec1 a8R Qc2 Rg2 b1R Qa3 R1b4 Ra5 Qe2 Bc5 Qe4 Be2 f1R Qd8 Rf2 Nf5+ Kf4 Rh2 g4 Nh6 g3 Bf1 Rfb2 Bh3 g2 Kd6 g1R Bc8 Rh1 Qg1 f2 Rh5 Kf3 Rg5 Rc2 Rb5 Rb1 Rb2 f1Q Ke6 Qh3+ Kd6 Q4a4 Kd5 Ke2 Rf5 Bc4+ Ke4 Nf3 Kf4 Qhh5 Kg3 Bd3 Rb5 Qe4 Ra5 R1b6 Rb5 Nf6 Rb2 Rb4 Rg5 Rf8 h8R Ng8 Rh7 Rf7 Rhg7 Rh2 R7g6 Rh7 Rf5 Rh8 Nf7 Qh6 Rg4 Qd2 Rgg5 R2h7 Nh6 Qdf4+ Kh3 Qh4+ Kg2 Qh1+ Kg3 Qh2+
3qr1Q1/r3n2K/3r1N1N/1q1b1nQ1/Q2QB1N1/2B2Rbk/2r1qrp1/4Bn2 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 a5 h4 g5 c4 d3 b6 d6 h5 d2 c5 g4 b7 Kg5 h6 a4 h7 a3 c6 a2 b5 a1Q b6 Nh6 c7 Qb2 Rh3 Qb5 Bb2 Ra7 Bc3 Be6 c8Q Nf5 Qc5 Nc6 b8Q Ne7 b7 d5+ Ke5 d4 e4 Rg8 h8N Bd5 Bd3 Bh6 Qa4 d1Q Nd2 Re8 Qbd6 Qe2 b8B Bf8 Bc2 d3 Bc7 Bh6 B7a5 Bf8 Qcd4 Bh6 Q6c5 Bf8 Nc4 d2 Nb6 d1R Nd7 Rf1 Be1 Rf2 Nf6 Bh6 Bac3 Bf8 Rh1 Bh6 Nh3+ Kh4 Rf1 g1R Bb1 g2 Bc2 g3 Bd3 Rf3 Nf2 Bc1 N2g4 Rf2 Bb1 Kh3 Bc2 Rh1 Bd3 g1R Bc2 Rfg2 Rf3 Rf2 Bb1 Bb2 Kf4 Rhh2 Kg5 Rgh1 e5 Bc1+ Kh5 Bf4 e6 Bc7 Be4 Rg1 Bed2 Rd1 Be1 Bb8 Ng6 Rd2 Nh6 Rc2 Ne5 Rh1 Bed2 Rd1 Be1 Bc7 Neg4 Be5 Rf4 g2 Rf3+ Bg3 Qe5 Nh4 Qg5 Nhf5 Qb6 Ba8 Qbe3 Rd6 Qed4 Bd5 Nhg8 Nh4 Kh6 Nhf5+ Kh7 Nh6 Nd7 f5 Ndf6 f4 Qc5 Qdb8 Qcd4 Nhf5 N8h6 Qd8 Rd3 Ng8+ e7 f3 Kh8 Rf8 e8Q Nge7+ Kh7 Rg8 Qeg6 Re8 Qg8 Rf1 Bed2 f2 Rf3 Rb1 Ba1 f1N Bac3 Rbb2 Be1 Qf2 Qf7 Rd2 Qde3 Rbc2 Qed4 Qe3 Qf8 Rf2 Qfg8 Qee2
3r2N1/Q2Rq3/Bn1Qp2B/3n1n1R/rr1bq1r1/2k1q1RK/1R1b1Q2/2r3B1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 f4 h5 e4 hxg4 f5 b6 Nd2 a5 b4 axb4 Ndf3 Ba6 Ng5 Bd3 Ne6 fxe6 f6 e5 Ne2 Bc4 Ng1 Be6 Rb1 Bf5 exf5 e4 Ra1 Ra5 Bh3 Ra3 Bf1 Ra8 Kf2 Kf7 Kg2 g5 h4 d5 a4 e3 c4 d3 h5 e6 h6 d4 h7 e2 a5 e1Q c5 g3 a6 b3 c6 b2 c7 b1R c8R g4 a7 b5 Ra5 b4 Ra6 b3 Rc7+ Nd7 Rc4 d2 Rac6 b2 R4c5 d3 Rd5 Nb6 Rc8 Bb4 Be2 Nh6 Rd7+ Qe7 Rh3 Rd8 h8R Bc3 Bf1 Qe3 Nf3 Bb4 Qc2 d1R Nd4 d2 Ba6 Re1 Rc4 d1N Nc6 Bd2 Rb4 Nc3 Rh5 Ncd5 Rg8 Rh1 Qc5 Rh4 Qd6 Ra1 Rb3 b1Q Rb2 Rab8 a8Q Ra4 Qa7 Qc2 Rb4 Rh1 Ba3 Rc1 Rb2 Qcd3 Bc5 Rb7 Qf4 Qde4+ Qf3 Q3f4 Bg1 Qfe3 Kh1 g2+ Kh2 g3+ Kh3 Rbb8 Qf2 Rb7 Bh2 g1B Rgg5 g2+ Rg3 Kf8 f7 Rbb8 Qf4 Bf2 Qd6 Rb7 Bg1 Rbb8 Rf3 Kg7 f8B+ Kf6 Rg3 Rb7 Bh2 g1R Bg7+ Kf7 f6 Nf5 Bh6 Rg2 Bg1 Rbb8 Rf3 Rg4 Rg3 Kg6 f7 Kf6 Nd4 Nc8 Nc6 Rbb4 Rh4 Ncb6 Rh5 Qf8 Ne7 Qg7 Qc5 Ke5 Qd6+ Kd4 f8Q Kc3 Ng8 Qe7 Qf7 Q3d3 Qf6+ Bd4 Qh4 Qde3 Qf6 Nh4 Qf2 Nf5
N7/1b1Rp2r/K1n3Bb/1nQ1n3/1QqN1nB1/3Q1Q1n/3brq2/kB3Nq1 w - - 0 1 illegal: No possible last move, all moves rejected
1R1Qbbk1/8/rrNb4/q2r1B1B/r4nnK/2N2b2/np1QQb2/3NN2B w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 exf4 a4 d5 cxd5 g6 Ra3 g5 Rd3 h6 Rd4 f3 Rf4 Qd6 Bb2 Qd7 Bf6 gxf4 g5 Qe7 g6 Qd8 Bg5 hxg5 Kf2 b5 h4 c5 d4 f5 e4 c4 g7 Kf7 d6 g4 a5 b3 d7 b2 d5 b4 h5 c3 d6 b3 e5 c2 h6 c1B h7 g3+ Ke1 g2 Kf2 Ne7 g8N Nbc6 a6 Ng6 a7 Bb7 Qd2 Nb4 Na3 b1R Ba6 Qa5 d8Q Na2 Nc4 Ba3 d7 Bad6 Rh4 b2 Rh2 Rd1 e6+ Kg7 Qe2 Rd5 e7 Rb8 e8B Bc6 a8B Rb6 Nf6 Rg8 Nh3 g1B+ Kf1 f2 Kg2 f1N Ne5 Be3 Ne4 Bf2 Bc8 Ne3+ Kf3 Kh8 Nd3 Ng4 Nc3 Rg7 Bab7 Rf7 Qd2 Rf6 Ne1 Kg7 Qe2 Ra6 h8N Kg8 Nf7 Bb5 Ne5 Re6 Kg2 f3+ Kh1 f4 Nc6 Re4 Qg5 Ra4 d8Q Ba7 Bcd7 f2 Kg2 f1R Nf2 f3+ Kh3 Rh1 Qgd2 Nf4+ Kh4 Bb6 Nfd3 f2 Bf5 f1B Bh5 Bg2 Nf2 Bf3 Nfd1 Bd4 Ne5 Be8 Nc6 Rg1 Rh3 Be4 Re3 Bf3 Re7 Rg3 Rc7 Bf2 Rc8 Bh1 Rb8 Re3+ Kg5 Re6 Ba8 Bf3 Bb7 Bfc5 Kh4 Rf6 Ba8 Bg1 Bb7 Bf2+ Kg5 Bdc5 Nb4 Rd4 Ba8 Bh1 Bf3 Rfb6 Nc6 Bcd6 Be4 Rd5 Bg2 Be3 Kh4 Bec5 Bh3 Bf3 Bg2 Bd4 Bh1 Bf2+
K7/3R2B1/1Qb2rN1/1RRn1bQ1/4pNN1/n1b2N1r/1n2q1Qb/kr1r3r w - - 0 1 illegal: No possible last move
1q2B1nq/n2rn1Bk/5R2/n4r2/QQN1K3/npQB1r2/b3N3/r1bB3N w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 f4 e5 Qb3 exf4 Ra2 g3 Ra3 g2 Qd1 Nf6 Rc3 Ng8 Rg3 fxg3 h4 g5 e4 b5 Ke2 f5 Kf3 Kf7 d4 Kg7 a5 c5 d6 b3 e5 f4 e6 b2 d7 g4+ Ke4 c4 a6 c3 e7 f3 e8B b4 d5 f2 d6 c2 a7 Rh5 Bg6 Rf5 h5 Nc6 Rh3 Nce7 Nc3 b1N Bh7 Na3 Bb2 c1N Bb5 f1R Nge2 g1R Qa4 g2 Rf3 Nb3 Ng3 Na5 Nh1 g3 h6+ Kh8 Rf4 Rf3 Ne2+ Bg7 Bg6 Rd1 h7 g1N Be8 g2 Bd3 b3 Ba1 Bb2 Qb4 Qc7 d8N Qb8 Nc6 Ba6 Ne5 Bc1 d7 Bb5 Nd4 Ne2 d8Q g1Q Nc4 Qh2 Qd7 Ba6 Qda4 Rd2 Nb5+ Nd4 Nc3 Ndb5 Bb2 Kg7 Ne2+ Kh6 Bh8 Bc8 Ba1 Be6 Be5 Bf7 Bc3 Bg6 h8Q+ Bh7 Qd4 Bg6 Qdc5 Kh7 Be5 Qh6 Qc3 Qg7 Q5b4 Qh8 Bg7 Rd1 Bc2 Rdd5 Bd1 Rd7 Rg4 Bh5 Rg6 Bg4 Rf6 Bh5 Rf7 Bg6 Rf6 Rh5+ Rf5 Nb7 Qa6 Nb1 Qaa5 N5d6+ Kd4 Ndc8+ Rd5 Bd3 Rd6 Rhf5 Qab5 Na3 Qc6 Bb1 Qa6 Nc2+ Ke4 Ra5 Rf6 Ra1 Qe5 Ba2 Qec3 Na3 Qab5 Rd5 Q5a4 Rdf5 Rb6 Na5 Rf6 Qb7+ Kd4 Rb8 a8B Qc7 Bd5 Na7 Be4 Rb7 Bd3 Qb8 Ke4 Rd7
N3KQ1q/2R2b2/kb3p2/1r1Brr1N/4BB1b/r1n1b1Q1/2B2qQ1/2N1n1r1 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 d5 Kd3 Kd7 c4 Kc7 h4 Kb6 e4 a5 c5+ Ka7 e5 g5 e6 g4 h5 f6 h6 a4 e7 a3 e8B a2 b6+ Ka6 b7 a1B h7 Bc3 c6 Bh6 c7 Be3 Qc2 Be6 c8B Ne7 Nh3 g1R Qg2 Nbc6 Bg6 Re8 h8Q Be1 Nf4 B1f2 Rh7 Ne5+ Ke2 Nd3 Nd2 Ne1 Nh5 Ra7 b8Q+ Rb7 Bd7 Rb5 Qf8 Qc8 Nb3 d3+ Kd1 d2 Ke2 d1R Be4 d4 Bdc6 Rf5 Bcd5 Rd3 Bd2 Qd8 Nc1 Ra3 Bc2 Qc8 Bde4 Nd5 Rc7 Bf4 Be3 d3+ Kd2 Bh6 Bf4 Nc3 Be2 Bg5 B2f3 Bh4 Bd5 Bb6 Bfe4 Ba5 Ke3 d2 Kd4 d1R+ Kc5 Bb6+ Kc6 Rd3 Qe2 g2 Qd2 g3 b5+ Ka5 Qe2 Be3 b6 Ka6 b7 Re7 Qf7 Qh8 Qff8 Re8 Qd2 Rd4 Kd6 Rb4 Qe2+ Rb5 Qd2 Bg8 Kd7 Ree5 Qe2 Be6+ Ke8 Rh1 Qd2 g1Q Qh2 g2 Qa8+ Kb6 b8N Qf2 Qg3 g1B Qb7+ Ka5 Nd7 Bb6 Qc6 Be3 Nb6 Ka6 Rh7 Bh2 Rc7 Rg1 Na8+ Bb6 Qg2 B2g3 Qc4 Bg5 Qd3 B3h4 Bg3 Bge3 Bf4 Bd2 Qdf3 Bde3 Qfg3 Bf7+
4RqBK/N3qRr1/1n2p3/3NRrNR/3Qq3/Q2q1r1n/1qb3Q1/3bkr2 w - - 0 1 legal: proof: d4 a5 e4 c5 f4 cxd4 b4 axb4 g3 f5 Bg2 fxe4 Bh3 Qc7 Bf1 Qd8 Be3 e6 f5 h6 Bc1 Bd6 Bg5 Bf4 gxf4 hxg5 Kd2 Ke7 c4 Kd6 a4 Kc5 h4 d5 h5 b5 h6 d3 Ke3 g4 f6 g5 h7 d2 f7 b3 f8N Kb4 Kd4 b2 Ke5 g3 c5 e3 a5 g2 c6 d4 a6 d3 c7 e2 a7 e1R+ Ne2 g1Q f5 g4 f6 g3 f7 g2 Ng6 Ba6 c8R Ne7 Kf6 Qf8 Rc2 Qc5 Rh5 g1R Ra2 Nd5+ Ke5 Qce7 Ra5 Nf4 Rc7 Nh3 Na3 b1Q Bg2 Ref1 Nd4 Qb2 Nf4 Bb7 Bf3 Rg7 Be4 Ba6 Qf3 d1B Qg2 d2 Bd3 Rhg8 h8Q Rf3 Rd7 Kc3 Bh7 b4 Rad5 Rf1 Nf3 b3 Ng5 Bd3 Rd8 B3c2 Re8 Qc1 Rb5 b2 Ra5 b1Q Nb5+ Kb2 Nd5 Nd7+ Kd4 Rc8 a8Q Rc3 Na7 Nb6 Ke5 Rcf3 Rc5 Rg6 Qf6 R8g7 Bg8 Kb3 Qf4 Qcb2+ Qd4 Rgf6 Ra5 Be2 Rc5 d1Q Ra5 Qd3 Rc5 Qd8 Ra5 Qfe7 f8R Bed1 Rf7 Qf8 Qb8 Qde7 Qd6 Qbc3 Qc5 Kb2 Qb4+ Kc1 Qa3+ Qcb2 Rc5 R3f2 Rb5 Kd2 Rc5 Rf3 Ra5 Qeb4 Rb5 Ke1 Ra5 Nf4 Kf6 Nh3+ Nf4 Qe4 Re5 Bb3 Qa6 Qd3 Nc8 Bbc2 Qa2 Re3 Na7 Rh7 Qa3 Qbd6 Rf5 Qc7 Nd5 Qce7+ Kg6 Rg7+ Kh6 Rg6+ Kh7 Rg7+ Kh8 Rg3 Re5 Rf5 Qd6 Re3 Qa3 Ref3
5nR1/1r2KNrN/2p1B2Q/7r/q5qN/1nRr3q/1b3QqR/2Nkq1Qb w - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 h5 b3 hxg4 f5 e6 Ba3 exf5 Be7 b6 a4 b5 Bh4 f4 Bg3 fxg3 axb5 Qg5 Ra2 Qf6 Ra1 Qd8 d4 Ke7 Kd2 Kf6 Ke3 Kg5 Ke4 a5 Ke5 f5 e4 g2 b6 f4 b4 f3 h3 g3 h4+ Kg4 b7 g5 b5 a4 h5 c3 d5 a3 h6 c2 b6 c1Q d6 a2 h7 Nd7+ Ke6 Ngf6 b8N Ra3 b7 Rd3 e5 Bg7 Nh3 g1R Be2 g2 Qf1 Qe1 Nd2 Ne4 Nc6 Qg8+ Ke7 Nf8 b8R Bb7 e6 Nc5 d7 Nb3 d8N Bb2 Rc1 a1Q Rh2 Qa4 Qf2 Rf1 Rc2 g1Q Na5 Qg2 Nf7 Be4 Rc8 c6 Rc3 Rh1 Qg1 Qg7 Bf1 f2 Nf3 Qgd4 Be2 f1Q Nh4+ Kg3 Rb8 g4 Nhg5 Rg8 h8Q Rg7 Qh6 Kf4 Nb7 g3 Na5 Qh3 Re8 g2 Bg4 Qff3 Qf2 g1R Bf5 Bd5 Nh7+ R1g5 Qg1 Qfg2 Bg4 Ke4 Rb8 Rh5 Qf2 Na1 Nb3 Rg1 Nc1 Nb3 Kd8 Rh1 e7 Rf1 Qg1 Rf6 e8Q+ Re6 Rb7 Re7 Rb8 Qdc4 Be6 Rb7 Qe7 Qd4 Qc5 Qdc4 Nf5 Kf3 Rc8 Qcg4 Ke8 Nd7 Ke7 Be4 Rg8 Bd5 Na2 Ke2 Nc1+ Kd1 Nh4 Nf8+ Kd8 Q2g3 Qcf2 Bh1+ Ke8 Rbb5 Ke7 Qgg2 Nf3 Rb8 Nh4 Rb7+
3n2rb/1N4pB/2rB2qr/2q1R3/kNQr1b1N/6nb/KQ1br1QQ/6B1 w - - 0 1 illegal: Other
k7/4q1rR/BnN2Q2/2n3Nr/Q1nQQbq1/K1n3Bb/b6p/2N1q1Bq w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Ra3 exf4 Rb3 b6 Rb4 axb4 a5 Qg5 axb6 Qd8 Kd2 f5 e4 d5 c4 Kd7 Kc2 h5 Kb3 d3 g4 d2 e5 h3 g5 h2 c5 h4 b7 Kc7 g6 d4 e6 h3 c6 d3 g7 f3 e7 f4 e8Q f2 Qe7+ Nd7 b8N f3 Bg2 f1Q Qe4 f2 Kb2 b3 Qd5 Ra7 Nf3 Qe7 Qd4 Qfe1 Qe4 f1N Nc3 Ne3 Bf1 Nc5 Na2 Nf6 g8Q Rh5 Qf7 Nfd7 Qf6 Bh6 Ng5 Nb6 Qa4 Bg4 Ka3 b2 Qc2 Kc8 c7 Kb7 c8Q+ Ka8 Qd8 d1N Qdd4 b1B Nc6 d2 Qce4 Nc3 Bb2 d1Q Nc1 Ba2 Bc4 Nbd5 b6 Bd7 Ba6 Qg4 Rg1 h1Q Rg3 h2 Rh3 Ncd1 Bc3 Bf5 Bd2 N1c3 Rh4 Ned1 Be3 Nb2 Bg1 Rd7 Nf3 Bf4 Ng5 Rh7 Rh5 Rg7 Rh7 Rd6 Qfe5 Rh6 Qf6 Bd7 Ne5 Rh5 b7+ Ka7 b8B+ Ka8 Nc6 Nb6 Bd6 N2c4+ Kb4 Qgd1 Be5 Be3 Bb8 Bh3 Bc7 Qg4 Bg3 Na5 Ka3 Bd2 Bf1 Bf4 Ba6 Nac4+
2B2qRN/1K1N4/2Qqpnbb/1r1q2n1/1NQbR3/nb3k2/3Q1r2/R3R2q w - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Kd2 a5 h4 d5 b4 Kd7 c4 Ke6 h5 Ke5 b6 e3+ Kd3 g4 b7 f3 c5 Kf4 h6 g3 g7 f2 c6 e2 b5 e1Q b6 g2 c7 a4 h7 a3 Rh6 a2 Rh3 Na6 b8Q Nc5+ Kc2 d3+ Kb2 d2 Kc3 d4+ Kc4 d3 Kb5 Qd6 b7 Ra5+ Kb4 Nf6 g8R Bh6 Re3 Bf5 c8Q e6 Qbc7 Bg6 Nf3 g1B b8R Nce4+ Kc4 Re5 Qc6 Ng5 Nc3 Rb5 Nd5+ Kg3 Qe2 d1B Re4 d2 Ne5 Bb3+ Kd4 d1Q+ Qd2 Qh5 Nd7 Kf3 Qc4 Qh1 Q8c6 Qb1 Ra8 Qd1 Rb1 a1N Ra7 Qe2 Re1 Qd1 Ra3 Qg3 Nb4 Nc2+ Kc3 Qgg2 Ra1 Na3 Kd4 Qg3 Rb8 Rf8 h8N Rf7 Rg8 Qd6+ Q4d5 Rc5 Ba6 Rb5 Bc8 f1Q+ Kc3 Ba7 Qdc5 Qc7 Kd4 Qa5 Ke5 Bb6 Q5d5 Bd4+ Kd6 Qa8 Kc7 Qfg2 Ba6 Qf8 Bc8 Qg3+ Qdd6 Qe5 Qc4 Qd5 Qb6 Qe2 Kb8 Qeh2+ Ka7 Qf4 Ka6 Qc7 Qbc6 Qcd6 Qf1+ Kg3 Qf5 Nfh7 Qf1 Rf2 Qfe2 Nf6 Qc4 Ra5+ Kb7 Kf3 Qa2 Rc5 Qd2 Rb5+
q1RRrb2/QB3Q1p/N5n1/r1R1b1r1/1N1Q2n1/q4qR1/1n1Nr3/K1n4k w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 d4 fxe4 f4 c5 f5 cxd4 Be3 g5 Bf4 gxf4 h3 b6 g5 Ba6 Na3 Be2 Nb1 Bg4 hxg4 Ra4 Kf2 Ra3 Ke1 Ra8 Kd2 Kf7 Kc1 e5 Kb2 d5 c4 f3 a4 b3 f6 Kg6 c5 d3 c6 e3 a5 b5 c7 f2 c8N e2 f7 e1R a6 d2 a7 e4 Rh3 b4 Ra5 d4 Ra3 e3 Ra5 d3 Qe2 d1R Nb6 d2 Qb5 e2 Qa4 Nc6 Bg2 f1Q Bf3 Nge7 Ka1 b2+ Ka2 b3+ Ka3 Ne5 Nc3 b1Q Nb5 b2 Nc7 Qbd3+ Ka2 b1N Bb7 Qff3 Na6 Nc3+ Kb2 Q8d5 Rc5 Na2 Qd4 Rg8 Rg3 Re8 a8R Ra1 Rd8 Qc6 Nd5 Qa3+ Kc2 d1N Ndb4 Nb2 Rc8 Kg7 g6 Kh6 g5+ Kh5 g7 Ng4 g6+ Kh4 Rd8 Rf1 Rc8 e1B Rd8 Bc3 Rc8 Rh8 g8R Rfe1 g7 Ng6 Rd8 R8e5 Rc8 Rg5 Rd8 Be7 f8Q Bd6 Qff4 Bf8 Qb8 Ree5 Qa7 Re2+ Qd2 Be5 Rc8 Be7 Rgd8 Re8 g8Q Bf8 Qf7 Qcd5 Nh3 Qc6 Nf2 Qcd5 Ne4 Qc6 Rg2 Kh3 Rg1 Kh2 Rg3 Rg2 Qf2 Kh1 Nd2 Rh2 Qd4 Re2 Rd5 Qc7 Rd6 Qb8 Rdd8 Qa8 Qdd5 Rg1 Qd4 Rgg2 Kb1 Rh2 Qdd7 Rhh5 Ka1 Bb8 Bd5 Rge5 Rc3 Rhg5 Bb7 Ra5 Qdd4 Be5 R3c5 Nc1+
4Qn2/B4Nq1/3bbk2/2QBnnqq/Q2N2p1/1K5R/1B1Q1N2/nqr1q1b1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a3 Ra5 a4 Rf5 gxf5 b5 Ra3 Qb6 Rc3 Qd8 Rc6 h6 Rg6 h5 Rg4 hxg4 Kd2 Kf7 e4 g5 c4 d5 Kc2 g3 h4 f2 h5 b3+ Kb2 g2 a5 d3 h6 d4 f6 b4 a6 d2 a7 d3 a8N f3 c5 Bd6 c6 Nd7 e5 Nf8 c7 Be6 c8Q Ne7 h7 Nc6 Be2 f1N Nc7 f2 Qa6 Ng3 Qa4 f1Q Nf3 g1B Ne8 Nf5 Rh3 Qe1 Nc3 g4 Qc2 d1Q Ne4 d2 Bc4 Qde2 Qd3 d1Q+ Qd2 Qh2 Bd5 Kg6 f7 Qg5 Nd4 Qc2+ Ka1 b2+ Ka2 b1N+ Bb2 Qc3 Nf2 Rg8 h8B Na3 Bf6 Nc2 Bd8 Rh8 Bb6 Rh7 Ba7 Rh6 Re3 Qhh5 Rh3 Rh7 Bc1 Qa1+ Kb3 Rh6 Bb2 Rh8 Kc4 b3 Kc3 Bc8 e6 Ne5 e7 Be6 Ng7 Kf6 e8Q Bd7 Nge6 Rh7 Nd8 Be6 Qb4 Rg7 Bb8 Qa7 Qba4 Qb7 Ba7 Qe7 Bc1 b2 Kb3 b1Q+ Bb2 Nh7 f8Q+ Qef7 Qh8 Nf8 Qeb5 Qfg6 Qg8 Rc7 Qc5 Qg7 Nf7 Nce3 Qcb5 Rc1 Qc5 Nc2 Qh8 Nfd7 Qb8 Nf8 Qbe8 Na1+
q1bNkn2/b5qq/6r1/1K2qq2/3B1pQ1/NQ3q1N/B1rR1Q2/1rBQ3r w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a4 Nc6 Ra3 h6 Rc3 Nce7 Rc5 h5 Rg5 Nf5 gxf5 Ke7 Rg6 Ke8 Rg4 hxg4 Kd2 g5 Kd3 b5 h4 d5 c4 g3 e4 f2 a5 g4 e5 g2 f6 g3 e6 b3 h5 b2 h6 b4 c5 b3 c6 Ne7 a6 Ng6 c7 Bc5 e7 Nf8 Be2 f1Q a7 Qf3+ Kd2 d3 Kc3 d4+ Kc4 d2 h7 d3 Nh3 g1Q Kb5 g2 Na3 b1Q Rh2 b2 Qb3 Rg8 h8B d1Q Bf1 d2 Bc4 Qf5 f7+ Kd7 e8N b1Q Nd6 Rg6 Bd4 Qde1 Nb7 d1R Bd5 Rb8 a8Q Qee5 Qa7 Rd2 Qb6 Qde8 Nd8 Qbe4 Qd1 Rc2 Ba2 Qa8 Qb7 Q8e7 Qb6 Qh1 Qb7 g1R Rd2 Q7f6 Qb6 Qg7 Qb7 Ne6 f8Q Rf1 Qd6+ Ke8 Qdb6 Nf8 Qd5 Qh2 Qc4 Rh1 Qb3 Be6 c8Q Rb7 Qb8 Bc8 Qd6 Rb8 Qf6 Rb7 Qh4 Rb8 Qg4 Rb7 Ng5 Qhh7 Nh3 Q3e4 Qbf3 Re1 Ba1 Bd4+ Kb4 Rh1 Qf2 Qf3 Bab2 Rb8 Qb7 Ba7 Bd4 Bb6 Qd5 Ba7+ Ka4 Rb1 Qb3 Bc5+ Kb5 Ba7+
2b1B1k1/n1r1p3/Q1RBrQ2/R1B1QK1n/nr2r2R/1N2r3/1b1n1r2/2R1r3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 Nd2 f6 Nc4 Qa5 Ne5 fxe5 f6 Qd5 Be3 Qe6 Bc1 Qf5 exf5 e4 Ke2 Kf7 c4 d5 h4 b5 a4 g5 a5 b3 c5 d3+ Ke3 b4 c6 b2 c7 b1N h5 d4+ Kf2 b3 Kg3 b2 a6 d2 h6 d3 a7 e3 h7 e2 Qa4 d1N Bh3 d2 Ra3 Bb7 c8R e1R Rc5 Re3+ Nf3 Ndc3 Bf1 Bg7 Rh4 d1R Bd2 Nc6 Rc4 Rf8 a8R Re6 Ra6 Na7 Bf4 Rdd8 Rh6 Rd3 Bd6 Bc8 Qa5 Rd4 Nd2 Rde4 Qb5 Bd7 R3a5 Na4 Qb7 Rc8 Qb5 Rc7 Rc1 Bc8 Rb6 Kf8 f7 Nf6 Qa6 Rg8 h8B Re3+ Nf3 Nd2 Bb5 b1R Be8 Rb4 Rbc6 R6e4 Rh4 Nh5+ Kf2 Be5 Nd4 Rg6 Nb3 Bb2 Bd4 Rge6 B4c5 g3+ Kg2 Kg7 Kh3 Kh7 f8Q g2+ Bg3 g1R f6 Rg2 f7 Rf2 Qh8+ Kg6 Qd4 Kh7 Qd6 Kh8 f8Q+ Kh7 Qf6 Kg8 Rf4 g4+ Kh4 Rfe2 Kg5 Rf2 Bh2 g3 Rh4 g2 Qdf4 g1R+ Kf5 Nf3 Qd6 Rd1 Qdd4 Rh1 Bhd6 Rhe1 Qde5 Nd2+
2rrq1Q1/2q1NQbq/4Q1q1/6b1/Bkp2pq1/4K1nN/2B1n3/1NBRn1N1 w - - 0 1 illegal: No possible last move, all moves rejected
n1Qb4/1qBnBN2/2r2b1N/4pNR1/2Qr1r1r/QB3K1N/3q2pr/1k4b1 w - - 0 1 legal: proof: f4 c5 e4 f5 a4 fxe4 d4 cxd4 g4 h5 f5 b6 Ra3 Ba6 Rg3 Bc4 b4 a5 f6 axb4 Rg2 Be6 Rg3 Bf5 gxf5 Ra5 Rg5 Ra8 Rg4 hxg4 Kf2 Kf7 c4 g5 h4 d5 h5 e5 c5 g3+ Kg2 b5 a5 e3 a6 e2 h6 e1B h7 d3 a7 d2 c6 g4 c7 d4 c8Q d3 Nc3 b3 Nf3 b4 Nh2 b2 Qc2 b1R Nd5 d1R Q2c3 d2 Q3c5 b3 Ne3 b2 Ba6 Nd7 Rg1 Bg7 Qb6 Ne7 Qbb7 Nd5 Qc4 Rc8 a8Q Rc6 Qe2 Nb6 Qbc8 Qe7 Qa7 Na8 Qd3 Qd6 Bc4+ Qd5+ Qe4 Bf2 Qa4 Rf1 Bb3 d1R Qa3 Rd4 Bd2 Be1 Bc3 Rf4 Ba5 Rbc1 Bd8 R1c4 Bc7 Qa5 Qc2 b1Q Qe2 Bb4 Qd3 Be7 Qf1 Rg8 Qfc1 Bd8 h8N+ Ke8 Nf7 Rh8 Qc2 Ra4 Qc4 Rh7 Nd1 Qd2+ Nf2 Rh3 Nf1 Rh1 Nh6 Rb4 f7+ Ke7 f8N Kf6 Ne3 Kg5 Rd1 Bgf6 Ng6 Qbb2 Nh8 Rh2+ Kg1 g2 N8f7+ Kh4 Rb1 Kg3 Nh3 Kf3 Rc1 Ke4 Rd1 Bh4 f6 Ra4 Nef5 Bg5 Ba2 Qb7 Bb3 Bh4 Nh8 Rb4 f7 Bhf6 f8B Ra4 Be7 Rb4 Qe6 Kd3 N8f7 Kc3 Ba2+ Kc2 Qc4+ Qc3 Rd3 Ra4 Bb3+ Kb1 Rf3 Qcb4 Kf2 g3+ Ke3 g1B+ Rf2 Rh4 Kf3 Qd2 Re2 Rb4 Re4 g2 Rg4 Ra4 Rg5 Rdg4 Qe2 Rad4 Qc4 Rgf4+
r4nk1/Q2BQ2q/2K5/p1b3N1/Bp5b/R1BR3B/1nrb1r1q/Q1R2q1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 f6 exf6 Kf2 f5 Ke1 f4 c4 Qb6 b5 Qf6 Na3 Rh7 Nc2 Bb7 Nb4 cxb4 d3 Bd5 c5 Bc4 dxc4 Rh8 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Kd3 Kf7 Kd4 a5 Kd5 g5 e4 f3 h4 g3 h5 f2 e5 a3 c6 f4 c7 a2 c8B g2 b6 g4 c5 f3 c6 g3 c7 Na6 h6 Nc5 h7 Nf6+ Kd4 d5 b7 Nfd7 b8R Nd3 Ba6 Qh4+ Bf4 Nb2 c8B Be7 Nh3 g1Q Bac4 g2 Bb3 Qh2 Ba4 Nf8 Bcd7 g1B e6+ Kg7 Rc1 a1B Rd8 Bg5 Kc5 d4 e7 d3 e8Q d2 Qde1 d1R Q8e3 Rd2 Kc6 Rc2+ Qc5 Kf7 Be5 Bd2 Bc3 Qh5 Bg2 f1Q Qa7 Bc5 Qe3 f2 Ng5+ Kg6 Bgh3 Qh6 Ne6 Kf7 Rg1 Qg7 Rg3 Qhg1 Bg2 Qd3 Be5 f1R Qh6 Rf2 Qh4 Nd1 Re8 Qdf1 Ra3 Ra2 Qe4 Bad4 Qe1 B4e3 Bc3 Bg5 Qe4 Bh4 Qe3 Rg8 Bh3 Qh2 Qe1 Qh8 Qe5 Rg1 Ng5+ Kg6 Qe1 Rh1 Re3 Qg7 Rg3 Qg8 Qe7 Kh6 h8Q+ Qh7 Rd3 Rc2 Qd4 Kg6 Qc4 Nb2 Qa2 Kh6 Qa1 Kg6 Rd4 Kh6 Qd6+ Kg7 Qe7+ Kh8 Rd3+ Kg8
5q2/b3QqQR/nnbRpr2/1pK1n3/kr2bQBR/B6Q/4B3/1r1n2N1 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 f5 g4 fxe4 Na3 h6 Nc2 gxf4 g5 h5 Ne3 Ra5 Ng4 hxg4 Nf3 Ra4 Ng1 Ra8 Kf2 Kd7 a4 c5 h4 e3+ Ke2 g3 Kd3 e2 Kc4 e1N d4 g2 d6 Kc6 h5 f3 g6 f2 a5 e6 d7 b3 h6 b2 g7 b1B h7 Nf6 g8Q Nd3 a6 Ne5+ Kc3 c4 d5+ Kb5 Kd4 Be4 d6 Nd5 a7 Nb6 Qf3 Na6 Bd3 f1N Ra2 Ne3 Qf2 Nd1 Ba3 Ka4 Qf4 c3 Rh4 c2 Be2 c1R Qg7 Rb8 a8B Rb1 Bg4 Qe7 d8R Qf7 d7 Bd6 Rc2 Rf8 h8Q Bb4 Rc6 Be1 Rd6 Bf2+ Qe3 Bc6 Qhh6 Be4 Qf4 Bc6 Re8 Be4 d8Q Bd7 Re7 Bdc6 Nf3 g1Q Qc7 Qh1 Ng1 Qf3 Qd8 Qf5 Red7 Rf6 Qde7 Nc7 Kc5 Qg6 Rd8 Qf7 Rdh8 Qf8 Bh3 Qh5 Rh7 Qhf7 Bg4 Rd8 Rd3 Rd4 Qh3 Rdb4+ Rd4 Nbd5 Be2 b5 Bg4 Nb6 Bb7 Bd7 Bd5 Be8 Bc4 B8c6 Bce2 Na6+ Kd6 Nd5 Rd2 Ba7 Rd4 Nac7 Rd2 Nb6 Kc5 Qg6 Rd7 Qgf7 Rd6 Na6#
bQ2b1Q1/rn3p1r/q5R1/1pb1Q2q/2B3Bk/2rR2NB/2KRn2n/1n4Q1 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 g3 Nc3 exf6 Nb1 f5 Qb3 f4 Qa4+ Nc6 Qd1 Nb8 Bb2 h5 Bd4 Qd6 Bf2 Qd7 Qa4 gxf2+ Kd1 Ne7 g4 Ng8 Kc1 Nc6 Qc2 Nb8 Qd1 Qd8 g5 Qf6 Na3 Qf5 Nc4 Qd7 Ne5 Qd8 Ng4 hxg4 e4 Ke7 d4 c5 h4 b5 a4 g3 e5 c4 e6 g2 h5 b3 a5 b2+ Kc2 b1N d6+ Ke8 a6 f3 d5 c3 a7 Nh6 g6 Be7 g7 Na6 Rh2 Nc5 Ne2 g1N Bh3 f1Q Ng3 f2 Ra6 Ng4 h6 Qb6 h7 Bd7 g8Q+ Bf8 e7 Nb7 Qe1 Ne2 Qc1 Qg2 Qg1 Qh1 Rg2 f1B Ra3 Rb8 a8B Qa6 Rb3 Bc6 Ra3 Kd7 e8B+ Kd8 d7 Ke7 d8R Kf6 d6 Nh2 d7 Bc5 Bg4 Rc8 Ra2 Rc7 Ra3 Nf4 Rd2 Bfg2 Rc8 Ne2 d8Q+ Re7 Bed7 Bgf3 Bde6 Be8 Bc4 Bfc6 Qc7 Qd5 Qb8 Qh5 Rcd8 Rc7 R8d3 Rd7 Qf8 Kg5 Qg8+ Kh4 Rd6 Re7 Rg6 Bh1 Kb3 c2 Kb2 c1R Rad3 Nd6 Bg2 Ra7 B2h3 Ba8 Kb3 Rc3+ Kb2 Nb7 Qe5 Bc6 Qgb8 Rd8 h8Q Be8 Qg8 Rd6 Rg7 Rh6 Rg6 Ra3 Kc2 Rh7 Qee3 Rb3 Qee5 Rc3+
N2k3r/pKn1R3/bB3rr1/bqqNrpn1/2RR2b1/3Q4/nN1Q3Q/7N w - - 0 1 illegal: No possible last move
1r4BK/Bn4pQ/1n2N2n/pqnn3Q/r3BRnr/B2R4/b6Q/kb3R2 w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 f5 cxd4 f6 exf6 g3 f5 Ra2 f4 Kd2 f3 Ra1 f2 Ra3 f5 Nc3 h5 Nd5 f4 Ra1 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 Kd3 Kf7 Ke4 Kf6 h4 a5 b4 g3 c4 g2 f5 d5+ Kf4 a3 e4 a2 h5 d3 h6 d2 c5 d4 b5 d3 h7 Nh6 c6 Qb6 c7 Be6 c8B Nd7 Nh3 g1R Qc2 d1N Bg2 f1B Ba3 f2 Ng5 d2 Rh3 Nc3 Rd3 d1N Qb2 Bb3 Ne6 Nc5 Bh1 Qb7 b6 Rb8 Bf3 Qd7 b7 Ne3 Qd2 Bh3 Rf1 a1N Qe2 N3a4 e5+ Ke7 Bc6 Neg4 Kg5 Nb6 Kg6 Ba2 Be4 Nb3 Qd2 Qb5 f6+ Ke8 f7+ Ke7 f8R Rg2 Rh1 f1N Rf4 Nfe3 Rhf1 Ned5 Qb2 Rg1 Qh2 Rg2 Bd7 Bb1 Be8 Ra2 Bf7 Kd7 Bg8 Kc6 Nc7 Bg2 e6 Kd6 e7 Ke5 Ne6 Bh1 Bc1 Ra4 e8Q Bf3 Ba3 Ba2 Qc8 Bd1 Qd7 Bc2 Qe8 Bcb1 Qf7 Nd2 Qe8 Ndc4 Qf7 Nd6 Qe8 Rc8 b8B Rd8 Ba7 Ndb7 Qe7 Rc8 Qeh4 Rb8 Bf7 Rhf8 Bg8 Rf5 h8Q Rh5 Qe7 Rh4 Kh7 Na8 Qf7 Nab6 Ng5 Nc3 Qh5 Ncd5 Rh3 Kd4 Rd3+ Kc4 Ne6 Nf2 Rd2 Kc3 Rd3+ Kc2 Bb4 Kb2 Ba3+ Ka1 Bf7 Nh3 Qg8 Nc8 Kh8 Nf2 Qh7 Ncb6+ Bg8 Nfg4
1nB1b2k/Q3q2r/1p1bq1p1/2q1N2q/1N6/Qr2n2B/1B2K2B/q1Q1Rq1N w - - 0 1 illegal: No possible last move
nN4rn/Rq1rk3/1NBr3Q/2bQ1Rp1/1b1r1Q2/2RN1p2/N7/bn3Kb1 w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Bb2 h6 Ng1 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 e4 b5 h4 c5 d4 g4 a4 g5 a5 f2+ Ke2 f3+ Ke3 b3 h5 b4 e5 c3 d5 b2 e6 c4 f6 g3 h6 g2 a6 b3 f7+ Ke7 h7 c2 a7 c3 Nh3 g1B Nf4 Nh6 Bb5 Qc7 Nd3 Rg8 h8Q Na6 Bc6 Rd8 a8N Rd7 Nb6 c1B+ Qd2 c2 Nc3 b1R Na2 Bg7 f8R b2 Rf5 Nf7 Qh6 Nh8 Rh2 Qb7 d6+ Kd8 Rg2 Nc7 e7+ Ke8 Rg4 Na8 Rc4 Be5 Rc3 f1R+ Ke4 Bf6 Qf4 Kf7 e8N Bce3 Nc7 c1B Na6 Bc5 Nb8 Rd1 Nf2 Bd2 Nd3 Rdd8 d7 Ke7 Nab4 Rbc1 Ra7 b1N Na2 Be1 Nf2 Rd4+ Ke3 Bh2 Nd3 Rd1 Qc7 Bd2+ Kf2 Be1+ Kf1 Bg1 Qf4 Rd6 Nb2 R1d4 Nd3 Bd2 Rca3 Bdb4 Rb3 Rdf8 Rc3 Rf7 d8Q+ Ke6 Nc4 Rfd7 Qa5 Ke7 Qb5 Bb6 Qd5 B6c5 Nb6 Re4 Rc1 Ba1 Rc3 Rd4
N1n1bQ2/r1B1K3/4b1bQ/2Q1pq2/Nrn2pk1/b5BN/r1Bn3R/2B3r1 w - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 h4 gxh4 e4 Qf6 d4 Qg5 d5 Qd8 d6 cxd6 b4 Qg5 Ra3 Qe7 Re3 exf4 e5 Qf6 e6 Qd8 Re5 dxe5 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 c4 h5 g4 a5 e7 h3 Kd6 a4 c5 a3 b6 h4 b7 a2 b5 a1R c6 h2 b6 h3 c7 R1a2 Ba3 f3 Qd5 f2 Qc5 f4 Bc4 f1N Bb3 Ra7 Ba4 Nd2 Bc2 Nc6 b8B Na5 b7 Kh4 g5 Kg4 g6 Nac4+ Kd5 d6 e8Q Qd7 g7 Qf5 Nc3 Be6+ Kc6 d5 c8N d4 Nb6 d3 Na8 Rh6 Bc1 Ne7+ Kc7 Rf6 Kd8 Nc8 g8Q+ Rg6 Qh8 Rg7 Qb6 Ba3 Bc7 Ra4 b8B Rb4 Qe3 Rh7 Ba5 Ra7 Qh7 Nf1 Qc5 d2 Bbc7 d1B Qef7 Nfd2 Na4 Be2 Qh8 Bd3 Qff8 Be4 Qhh6 Bc6 Nf3 Be8 Ng5 Bg6 Rf1 h1R Rf2 h2 Nh3 Re1 Re2 h1B Rh2 Rg1 Bab6 N8d6 Ke7 Bc6 Ba5 Rb3 Bc3 Bce8 Bd4 Rbb7 Bf2 Rb4 Bg3 Nc8+
q1BKBBQQ/8/3qp3/1b1q1rn1/rqN4p/r1N5/3rb1Nn/k1BR3Q w - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 a5 b4 axb4 f5 c5 a3 cxd4 Be2 g6 Bf1 g5 g4 Nh6 h4 Nc6 a4 Ra7 Ra3 Ng8 Rf3 Ra6 Rf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Nf3 Ra7 Ng1 Ra8 Kf2 b5 c4 h5 c5 d5 f6 Kd7 a5 Kc6 a6 d3 a7 f3 Ke3 d4+ Kf4 Kd5 f7 Kc4 Ke5 f2 f8B e6 g7 b3 g6 e3 c6 b2 c7 b4 Rh2 e2 Bh3 e1R+ Be3 f1B Na3+ Kc3 Qa4 b1R Bd6 h4 Rf2 d2 Qe8 Kb2 Nc2 d1Q Bf8 d3 Ne2 d2 Na3 b3 Qa4 Nf6 g8Q Bd7 Kd6 Nh7 c8B Nc6 g7 Ra1 Bh6 Ne5 Nb1 Ng4 Bg2 Nh2 Nbc3 Ng5 Nf4 Re2 Bc6 Ra3 Qe4 Ka1 Qh1 b2 Ng2 b1Q Ba4 Qe8 Kc7 Qb4 Bc6 Rh7 Qh8 Qdb3 g8Q d1Q Rf4 Rf7 Rd4 Rf5 Rd3 Rd2 Bb5 Qeh5 Kd8 Be2 Rd6 Qa2 Ba4 Rb8 a8N Rb7 Rd3 Ra7 Nb6 Ra8 Bb5 R8a4 Rd4 Qd5 Nc4 Qhf3 Rd3 Qdd6 Rd4 Qa8 Bc6 Nh7 Be3 Ng5 Rd3 Rda2 Bc1 Qdb3 Rd1 Rd2 Bf3 Qa2 Bh5 Qad5 Be8 Qa8 Ne5 Q2d5 Nc4 Bb5+
5n2/1b4rQ/p2N2B1/6bR/1qN1qQ2/n1nBN1nK/q1Q1p1rN/4qB1k w - - 0 1 legal: proof: f4 b5 b4 f5 e4 g5 a4 c5 d4 cxd4 axb5 fxe4 g4 h6 f5 Rh7 Bf4 Rh8 Ra3 Nf6 Rg3 gxf4 g5 Ng8 g6 Na6 Rg4 Nb8 Rg5 hxg5 Kf2 d5 Kg2 Kd7 c4 Kd6 h4 Ke5 f6 a6 h5 e3 f7 Ke4 h6 e5 g7 f3+ Kh2 f2 h7 e2 c5 e1N b6 g4 c6 d3 b5 d4 c7 d2 b7 d3 b6 Nh6 g8B Qe7 Na3 Nc2 Nh3 g3+ Kg2 Nf5 Nc4 Qb4 Qc1 d1Q Be2 d2 Qb1 Nd7 b8Q Qe1 b7 d1N Bf1 Nc3 Ne3 Bh6 f8Q Bg5 Bgc4 Rg8 h8N Ra7 Qf7 Nf8 Ng1 Rg6 Qa2 Na3 Kh3 g2 Nf3 g1Q Nh2 Ng3+ Qd7 Kf4 Qc2 e4 Nf7 Qeb1 Bce2 Qa2 Nd6 Rg7 Bh5 Ra8 Bd3 Qgb1 Bg6 f1Q+ Qg2 Qfd1 Qc2 Nf5 Qf7 Qe1 Qa7 Rb8 Qd4 Ra8 b8N Bb7 c8B Ra7 Qc7 Ng3 Nd7 Ra8 Nb6 Rb8 Nhf1 Kf3 Nbc4 Ra8 Bd7 Re8 Bb5 Rc8 Nd1 e3 Qh4 Re8 Qh7 Re4 Qb8 Rg4 Qc7 Nh5 Rh2 Rg2 Rh1 Ng3 Nh2+ Kf4 Bf1 e2 Nde3 Na4 Ne5 Nc3 Bbd3 Qe4 N5c4 Qb4 Nhg4 Kf3 Nh2+ Kf2 Qf7+ Qf3 Qf5 Qf4 Qg4 Qe4 Qf4+ Qf3 Ne8 Qab1 Ned6 Bh6 Kh4 Q1b3 Qf6 Qf5 Nf3 Qe4+ Qf4 Qa2 Kg4 Bg5 Rh5 Qd2 Nh2+ Kg1 Kh3 Kh1 Ndf5 Qc1 Nfd6 Qe1
n1bR1N1r/b1p2QK1/1RQBb1N1/q1p1nrQ1/q7/1nkn3N/2b2R2/2N5 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 g5 c5 d6 Ra4 dxc5 Ra6 Qd3 Ra1 Qd8 h4 gxh4 b4 a6 b6 Qd4 b5 Nf6 e3 Qd5 b7 Qd8 b6 Ng8 Bb5+ axb5 Ke2 Ke7 Kf3 Kd6 Ke4 f5+ Kf3 Kd5 d4 Kc4 g4 h5 g5 b4 g6 b3 d5 b2 g7 h3 e4 h4 e5 h2 e6 h3 d6 Qe8 e7 Nf6 g8Q+ Nd5 d7 Bg7 d8N Nd7 b8Q Bc3 b7 Ne5+ Kf2 f3 Kg3 f2 Ra6 f1B Qf3 Ba5 Ne6 Bb6 Nf8 Qa4 e8R Ba7 Nc3 b1B Qf7 Bc2 Na2 Bg2 Rae6 Nb6 Qc6 Bd5 Kf4 Kd4 Kg5 f4 Kf6 f3 Rd6 f2 Ng6 f1N Kg7 Nd2 Red8 Nb3 Bf4 Qa5 Nc1 Kc3 Bg3 Bde6 Rd2 Rh5 Rf2 Rf5 Bf4 Ned7 Bd6 Ne5 Nf3 Qa4 Ng5 Qa5 Rd1 h1Q Rdd2 h2 Nh3 Qe4 Rde2 Bd3 Rb2 h1N Rb1 Bc2 Rb2 Bcd7 Qc8 Qeb4 b8N Qba4 Q8b7 Bc8 Nd7 Rb8 Ndf8 Na8 Qg2 Nd4 Qg5 Nb3 Rf4 Nf2 Qc6 Nfd3 Rf2 Rb4 Rb1 Rh4 Rb2 Rh8 Rb1 Na1 Rb6 Nb3
1QNr4/Bn1R1N2/2B3Q1/q1n2n2/nB3N1b/3BKb2/ppq3Qn/k2q3b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 b5 c5 Ra2 e5 Rb2 exf4 d4 a5 c4 d6 d5 Bh6 b6 Bf8 Rb4 cxb4 c5 Ra7 Kd2 Rc7 Ke1 Rc6 dxc6 Qe7 Qd4 Qg5 Qd1 Qd8 Kd2 Ke7 e4 Ke6 g4 Ke5 b7 Kd4 e5 f5 g5 h5 g6 d5 c7 f3 c6 f4 g7 f2 e6 h3 e7 f3 e8B h4 Bc4 f1Q Qe1 f2 Ba2 h2 Qe7 b3 Bf7 h3 Qe2 a3 Qf3 a4 Nc3 Nd7 b8B Qg2 Bh5 f1N+ Kd1 Nh6 g8Q Bb7 c8N Nc5 c7 Nf5 Bh6 Be7 Qf7 Bh4 Bb1 a2 Qh7 a1N Nd6 a3 c8Q a2 Kc1 Qa5 Bg4 Rd8 Kd1 b2 Bh5 Nab3 Be8 Ba8 Bg5 Nb7 Nf7 N3c5 Na4 Kc4 Bd6 d4 Qb8 d3 Qg6 Kb3 Be3 d2 Ne2 Qf2 Rg1 h1Q Bc6 h2 Nf4 Qfg2 Qfg3 Qe4 Ke2 d1N Bd3 Nc3+ Kf2 Qc4 Nb6 N3a4 Rg2 Qc2+ Kf3 Qg1 Rd2 h1B+ Qg2 Nh2+ Ke2 Qgc1 Nc8 Qa1 Q2g3 Qad1+ Kf2 Ne6 Ba7 Bf3 Bb4 Nec5 Bf1 Qe4 Rd3+ Kc2 Rd7 Kb1 Bd3+ Ka1 Bd5 Nh6 Bc6 Qc4 Ke3 Qcc2 Nh5 Bh1 Qg2 Nf5+ Kf4 Ne3 Bce4 Nf5 Bf3 Nbd6 Bd5 Nh6 Ke3 Bc6 Nf4 Ndb7 Bb3 Be4 Bd5 Bf3 Bc6 Nf5+
k1n2b2/n2r1n2/6BN/BQ1q1r2/Nrn4n/1Q1Kpp1R/1B2NNqq/3Q4 w - - 0 1 illegal: No possible last move, all moves rejected
1NQ1rQ2/1q4K1/n1rr4/2R1R3/NQrbrNpR/2b3kB/3b2p1/1Q3bb1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 f4 a5 e4 axb4 g5 fxe4 f5 h6 Bb2 Nd7 Be5 Ndf6 gxf6 Ra7 Bf4 Ra8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 Kg4 Ke5 a4 b5 h4 c5 d3 c3 a5 c2 f7 c1B h5 e3 a6 c4 a7 e2 h6 e1R Kh5 Kf4 Kg6 e5 f6 b3 d4 c3 h7 b4 d5 c2 d6 e4 d7 e3 Qe2 g4 Bh3 g3 Bg4 g2 Nf3 b2 Ra5 b3 Nh2 Qc7 d8R Bc5 f8N Qb7 f7 Nf6 Bf3 Bd2 Bc6 c1B Re8 Nd5 Bd7 Nc7 Rg1 Kg3 Ne6 Na6 f8Q Bd4 Qb5 e2 Nc3 b1R Nf4 b2 Bh3 Rd1 Ra4 e1B Re5 Rg8 Qa3 Re8 h8Q Re7 Rc5 Re4 Qab4 Be6 Qh6 Bc4 Ng4 Bf1 Ne5 Re8 a8Q Bef2 Kh7 g5+ Nd7 Bde1 Qhc6 Bcd2 Qcc8 Rbc1 Kh6 b1R Nb8 Rb2 Qd3+ Bfe3 Qb1 Rbc2 Rh1 B3f2 Raa5 Bg1 Na4 Rc4 Re5 B2c3 Rac5 Bed2 Kg6 Qb6+ Kg7 Qb5 Qd5 Qb7+ Qf7 Rc2 Bd7 Rcc1 Rh4 Rc2 Bh3 g4 Qa5 Rb2 Qe7 Rb6 Qab4 Rd6 Rb5 Rcc6 Rc5 Rc1 Qf7 Ba1 Qe7 Rc4 Qf7 Bac3 Qe7 Nc7 Qf8 Na6+
3Q1B2/2QBKRq1/k3b1rq/2p2Qbq/q2bQ2q/1nN2q1B/pN6/2rN4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 c5 exf4 c6 f3 Ra2 dxc6 Ra3 c5 Ra1 c4 b4 h5 Ra3 Nc6 Rd3 Nce7 Rd6 f4 Rg6 Nf5 gxf5 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 Kd7 d4 Kc6 e4 Kb7 h4 c5 e5 a5 h5 g5 e6 a3 h6 a2 d5 a1Q b5 g3+ Ke1 c3 e7 f2+ Ke2 g4 Kd3 f3 Ke4 a4 Ke5 g2 e8B g3 f6 c2+ Nc3 a3 f7 Ne7 Kf6 Be6 h7 Ra6 b6 Bh6 Ne2 g1B f8Q g2 Bd7 Nc6+ Qe7 a2 d6 Na5 Qd3 Nb3 Qf5 Qa8 Bf4 Qe1 Nd1 c1Q Nec3 Qe4 Bg5 Qh4 Rh2 Rg8 h8N Qe8 Qeh7 Qeh5 Ke7 Qa3 Ng6 Qaa4 Bf6 Bg5 Ne5 Rd8 Nc4 Rb8 Bd3 f1Q Ncb2 f2 Bc4 Qe1 Bf1 Qe3 Rh1 Qef3 Rh3 Qfc6 Rf3 Rg8 Qe4 Rb8 Qhf5 Rh8 Be2 f1Q Bb5 Qff2 Bf1 Qe2 Rf4 Bd4 Rf2 g1Q Bh3 Qef3 Rf1 Ka8 b7+ Ka7 Rf2 Rb6 b8Q+ Ka6 Qc7 Rh6 Rf1 Rb4 Rf2 Rc4 Rf1 Bd2 Bg5 Rf6 Bh6 Qg8 Bf8 Bg5 Be8 Qgg6 d7 Qb7 d8Q Qgh6 Nd5 Rc1 N5c3 Q5g6 Bd7 Qfh5 Qef4 Qbf3 Q4e4 Qgg7+ Kd6 Qe2 Qfe5 Rg6 Rf7 Rf6 Ke7 Qef3 Q5f5 Rg6+
2k5/2rqQ1r1/N2RK1R1/2r4B/bpr3NQ/p1qrnQq1/3qRR2/nN6 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 h5 bxa4 h6 c5 Rh3 gxh6 Rh2 h5 Rh1 h4 d4 Qf6 c4 Qc6 b4 Be7 b5 Bd8 Bd2 Bc7 Bb4 cxb4 c5 Qf6 c6 Bd6 Qd3 Bf8 Qd1 Bc5 dxc5 Qd8 Kd2 h5 Kd3 d5 Kd4 a5 Ke5 f5 e4 d4 g4 f3 b6 a3 b7 h3 c7 Kd7 g5 f4 g6 d3 g7 h4 Rh2 d2 Ra2 a4 Bd3 f2 Qb3 f1Q Rb2 d1R Qc4 f3 Rb3 a2 Kd5 a1Q e5 f2 Ne2 a3 Nc1 Qc3 Na2 Rh7 Rg2 h2 Qf4 h1Q Qf3 h3 Rb2 h2 Nc1 Qhg1 Re2 Nh6 g8R h1R R8g6 Rh4 Rh2 Nc6 b8N+ Ke7+ Rd6 Ra7 e6 Rc4 Na6 Bd7 c8Q Nd4 c6 Rg7 c7 Qg3 Bg6 Nc2+ Nd3 Qfe1 Bh5 f1R Rhf2 Qed2 Qa8 Rc1 c8R Rfd1 Rcc6 Na1 Qb8 Qc7 Qh8 Nf5 Qh6 Kd8 e7+ Kc8 e8Q+ Kb7 Qee4 Kc8 Qe7 Be8 Ke6 Ne3 Rb6 Ba4 Ne5 Qd8 Qhf4 Rac7 Qfh4 Qd7+ Kf6 Qb3 Ng4 R1c3 Rbc6 Rdc1 Rb6 Rd3 Rbc6 Rc5 Rb6 R1c4 Rbc6 Qe8 Ke6 Qbc3 Rd7 Rcg5 Rc5 Rf4 Rd6 Rc4 Rf5 Qc6 Rf6 Rgc5 Rg6 Qd7+
2b1nNk1/1R3r2/7r/1nK2Q2/1RppBp1B/1bQ2nB1/Qq1q2R1/3qb2Q w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 d4 c6 d5 cxd5 c4 Bc5 Nd2 Bd6 c5 Bf8 Nc4 dxc4 Kd2 h5 Kc3 f5 Kd4 Kf7 b4 a5 g4 d5 e4 a4 b6 h3 b7 a3 g5 f3 e5 a2 g6+ Kg7 e6 h2 c6 f2 e7 h4 e8Q h3 c7 Nd7 b8B Ra6 b5 Ndf6 b6 Ne4 b7 Rc6 Ne2 Ngf6 Rg1 h1Q Nf4 h2 Rg2 Rh6 Qe5 Nd6 Bd3 f1N Rb1 Nd2 Ne6+ Kg8 g7 Nfe8 Be4 a1Q+ Bb2 Rb6 Kc5 Nf3 Qc3 d4 Bc1 Qb2 Bg5 Nb5+ Be7 Rd6 Bh4 Qg5 Qg1 Be7 Nf8 Qgd2 Qd1 Bf6 Qdb3 Qhd1 Qa2 Qbb3 Rb2 h1B Rb1 Rd7 Rb2 Qa3+ Rb4 Kf7 g8R Qab2 Rh8 Bg5 Rh7+ Kg8 Rf7 Rdd6 Re7 Rdf6 Rd7 Rf7 Re7 Be6 c8Q Bd7 Qc6 Bc8 Bbg3 f4 b8Q Bf6 Rc7 Bd8 Rb7 Ba5 Rf2 Bg2 Qe5 Bgh3 Rg2 Bhf5 Qd7 Bh7 Qh3 Bhf5 Qh1 Bg6 Bd5 Bc2 Be4 Bb3 Qf5 Bd7 Ra4 Q2e2 Qc2 Be1 Rb4 Qed2 Qc3 Bc8
Q2NK3/q3QBk1/1B4nr/5Q1n/Q2NN1p1/bq1p4/1p2Bn1n/2Rqb1r1 w - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 d4 cxd4 f5 b6 f6 exf6 Bg5 f5 Nd2 f4 Nb1 f5 Bh6 f3 Bc1 f4 a4 Bb7 Ra3 h6 Rc3 Be4 Rc5 h5 Rg5 Bf5 gxf5 Nc6 Rg3 Nb8 Rg4 hxg4 Kd2 Kf7 Kd3 g5 Kc4 d5+ Kb5 b3 c4 b2 e4 f2 h4 d3 e5 d4 f6 d2 a5 d3 a6 f3 h5 g3 c5 g2 a7 g4 c6 Bd6 c7 Ba3 c8Q Ne7 h6 Ng6 h7 Nd7 Kc6 b5 Nc3 b1Q Nge2 g1B Qa4 d1N Ne4 b4 Be3 b3 Nd4 Qe7 Be2 f1Q Qb7 f2 e6+ Kf8 f7 Kg7 f8N Rb8 a8Q Nf6 Qd7 Qf7 e7 Nh5 e8B Qe1 Qe7 f1N Kd7 Bf2 Q8a5 Nh2 Qf5 Qf1 Rg1 Be1 Rh1 Qb2 Bg1 Nf2 Nfe6+ Kh6 Nd8 Kg7 Qc6 Rc8 Qa4 Rc1 Qa7 Kh6 Qa4 Qg7 Bf7 Qc2 Qf8 b2 Qfb4 Qb3 Qe7 Re8 h8Q+ Qh7 Qhf6 Rh8 Qfa6 Kg7 Q6c6 Qg8 Qca6 Rh6 Qa8 Qh7 Ke8 Ba5 Nd6 Qfd1 Ne4 Be1 Nc2 Nh3 Bb6 Nf2 Nd4 Beb4 Q8a7 Qe1 Be6+ Kh8 Qd6 Qg1 Qab8 Qa7 Bf7 Kg7 Qe7 Ra1 Qa8 Qc1 Rd1 Qcc2 Rd2 Rg1 Rd1 Be1 Rc1 Qd1
1q1r2Q1/1N3Qnn/1Q1R1r1Q/p2B1bnq/k3ppq1/N6n/b2KR3/3N1R2 w - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 fxe6 Nb1 e5 Ra3 e4 Ra2 Nh6 Ra1 Ng8 f4 Qb6 g4 Qb7 h4 Kd8 f5 Bh6 Bf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Qc7 Ra3 Qb6 Ra1 Qd8 b4 h5 c4 a5 g7 d5 b5 Kd7 b6 Kc6 f6 e5 b7 d3 g6 a3 c5 Kb5 c6 h4 c7 a2 f7 h3 f8N e3 Be2 h2 Qc2 d4 Bh5 e2 Nh7 d2+ Kf2 e1N Ke2 d1Q+ Kf1 d3 Nf6 d2 Nh3 e4 Nd7 Nc6 Nc5 Nce7 Nf2 Nf6 g8Q Ra6 g7 Nf5 Qf7 Qg4 g8Q Ng7 Nd1 Nf3 Ke2 Nh7 Rf1 Bf5 c8R h1N Rc6 Qb8 Rd6 Nf2 Na3+ Kb4 Rc1 a1Q Qd3 Qd4 Rc2 Qe5 Bg6 Rb6 Qa6 Nh3 Ra2 Qf8 b8Q Nfg5+ Rf3 Qee8 Nb7 Ka4 Qba7 Rc6 Q7b6 Qb8 Rc2 Qfe8 Ra2 Be6 Rc2 Ba2 Bf5 Qe5 Be6 Qef5 Bd5 Qe5 Nf2 d1B+ Kd2 Qef5 Rb2 Qg6 Rc2 Q6h5 Rb2 Be2 Nd1 Bb5 Rf1 Bbc4 Rd8 Rf6 Rd6 Be2 Rb3 Bb5 Re3 Bd7 Re2 Bf5 Qbd8 Bb1 Qdf8 Ba2 Qb6 N7e6 Qh6 Ng7 Qc8 Rd8 Qce6 Qhh4 Qg8 Qgh5 Qef7 Q4g4
6rQ/n1N1Brq1/2p1Q3/1qKbp1R1/1n3B2/1b2QqBp/1q1R1B2/1k2bR2 w - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 gxh4 c4 dxc4 d5 e6 d6 Qg5 Bf4 Qf6 Bc1 Qd8 e3 f6 Be2 Na6 Bf3 Nb8 Bd5 exd5 e4 Na6 e5 Bf5 Nd2 Bg4 Ndf3 Bc8 e6 Nb8 Ne5 fxe5 Kd2 h5 Ke3 a5 b4 h3 g4 h2 f4 d4+ Ke4 a4 Kd5 d3 e7 Kd7 f5 a3 b6 h4 b7 c3 b5 d2 b6 c2 g5 a2 f6 h3 f7 c6+ Kc5 Ke6 e8Q+ Kf5 g6 Ke4 g7 Kd3 Qe6 Ne7 g8R Rh7 d7 Qc7 Qe1 d1Q d8B Qf3 Bf4 Bd7 Bg3 Nc8+ Be7 Na7 Ne2 c1Q+ Nc3 Kc2 Nb5 Qb2 Rd1 a1Q Qe3 Qa6 Rhf1 h1B Rg5 Bh6 f8Q Rf7 Qh8 Bc8 Rd6 Qd7 Nc7 Qa5+ Kc4 Na6 b8B Nb4 b7 Qa4 Kc5 Bf8 Be1 Kb1 Rd2 Bh6 Rgg2 Bf4 Rg5 Bg3 Bf2+ Qfd1 Be1 Bd5 Bf2 Bh4 Bg3 Qa6 Bf4 Be1 Bg3 Qf3 Bf4 Nb5 Ba7 Qa4 Bb6 Na7 b8B Ba6 Bg3 Bac4 Ba5 Bb3 Bb6 Nb5 B8a7 Rg8 Ba5 Na2 B7b6 Na7 Bc3 Nb4 Bd4 Qba3 Bb2 Qa2 Bc1 Qb2 Qe2 Qe8 Rd3 Na6+ Kd6 Rf5 Bbf2 Qg6 Bcf4 Qg7 Rd2 Rf7 Qe3 Nb4 Kc5 Qb5+
2nkbR2/1Q1npp2/3R2B1/8/2K4Q/pNrr2qb/2BR2bQ/b1Bq2rQ w - - 0 1 illegal: No possible last move
5kNq/p4b1q/Q3nNQp/2q2nr1/K1N4r/q1Q1pBb1/4RNr1/2R4R w - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 b5 axb5 g5 Bd2 gxh4 Bc3 dxc3 f4 d5 b4 e5 g4 c2 Kd2 c1R g5 h6 g6 d4 c5 h3 g7 d3 f5 h2 b6 Qe7 b7 Nc6 b8R Rc4 f6 Nd8 b5 Ne6 c6 Qc5 b6 Ne7 g8N Nf5 c7 Bd6 f7+ Kf8 Qc2 e3+ Kd1 d2 b7 e4 Qc3 e2+ Kc2 e1Q Kb3 e3 Nh3 Qg3 Be2 Qge5 Nf2 Rh4 Bf3 Qed4 Na3 Bg3 Rhc1 h1Q Nc4 Qg2 Ka4 Rh7 Ra2 d1Q+ Rac2 Q1d3 Re2 Rg7 Rh1 Rg5 Rc1 Kg7 f8N Kf7 Nh7 Qh8 Nhf6 Kf8 Rh1 Nd8 Rc1 Be6 c8Q Bf7 Qc6 Qh2 Qa6 Qb1 Rc8 Qd3 Rc6 Ne6 Rh1 Rd8 b8Q Qc2+ Qbb3 Rd2 Rc7 Qb2 Qa2 Qg1 Qab3 Qgb1 Qbc2 Qf1 Rd7 Ne7 N2g4 Rh3 Re1 Rg2 Nf2 Rh4 Rdd1 Qd3 Rc1 Qdh7 Qg6 Nf5 Re2 Qba3+
k1n3rq/3NN3/5RbQ/1r2r2K/r3p2n/B1n1QR1N/pp2N3/1R1Qn1r1 w - - 0 1 legal: proof: e4 b5 h4 f5 a4 fxe4 b4 bxa4 h5 c6 h6 gxh6 b5 h5 Ra3 h4 Ra2 Bg7 Ra1 Bf8 d4 Kf7 c4 Bh6 c5 Qc7 b6 Qd8 Bb5 cxb5 c6 Ke8 Qg4 Bf4 Qf3 Bd6 Qd1 Bc5 dxc5 Ba6 Bh6 Bb7 Bc1 Bc8 Ke2 a5 g4 e5 f4 d5 g5 h5 c7 Kd7 g6 Kc6 f5 Kb7 g7 e3 Kf3 b4 f6 e2 f7 e1N+ Ke3 e4 Kf4 b3 f8N a3 Ne6 d4 Nh3 b2 Ra2 a4 Kf5 d3 Kg6 d2 Qb3 d1N Bg5 Nc6 Qb5 Ra5 Qc4 Nh6 g8R Na7 c6+ Ka8 Qd4 Nc3 Be7 Re5 Rf8 Nf5 Qd1 Rg8+ Ng7 Bd7 Rf6 Nc8 Rf1 Rb5 Ra1 a2 Rf3 a3 b7+ Ka7 b8N Ka8 Nf4 h3 Kg5 h4 Kh5 h2 Nh3 Be6 Nd7 h1R Bf8 Rg1 Be7 Ne3+ Nf5 N3g2 Bc5 Qf8 Ne7 Bf5 Bd6 Nd5 Nc3 Qd8 Nf2 h3 Ne2 h2 Nh3 h1R Rb1 a1R Bb4 Nc3 Bc5 Nd6 Bb4 Qb8 c8Q Nh4 Qf8 Nc8 Qh6 Qe5 c7 Rh2 Rf8 Qh8 Rf6 Re5 Nd4 Rd2 Ne2 Rd4 Bc5 Ra4 Bb4 a2 Ba3 R1g6 Rf8 Rb6 Rf6 Nd6 c8Q+ Rb8 Qc5 Rb5 Qe3 Nc8 Qd6 Nd3 Rh1 Rag1 Qdd4 Ne1 Qd1 R1g2 Rhf1 Rg1 Qdd3 Neg2 Rb1 Ne1 Qd1 Bg6+
Q5R1/b5QK/B2QRp2/1b2Q3/3nbBR1/1p2p1r1/3qqq2/1BN1qnbk w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 f4 fxe4 f5 a5 f6 axb4 h4 b5 g4 Ra6 h5 Ra3 g5 Ra6 Nc3 Kf7 Nd5 Ke6 f7 Kd6 Nf6 Kc7 Ng4 Rg6 hxg6 Kc6 Nf6 gxf6 Kf2 Kd5 Kg3 e5 Kg4 h5+ Kf5 b3 a4 b2 g7 b1Q Kg6 d3 c3 h4 a5 e3 c4+ Ke4 c5 d5 a6 b4 a7 e2 a8R e1B c6 h3 c7 d4 Qa4 d2 Nf3 d1Q Be2 b3 Qd7 d3 R1a2 d2 Qb5 h2 R8a7 Qd4 Qc5 Ba6 c8Q Nc6 Qb8 Bb5 R7a6 Rh3 Qbd6 Bf2 Rg1 h1B R2a4 Nh6 g8B Ng4 Ne1 Ne3 Nd3 Rg3 Kh7 Nf1 g6 Qdc2 g7 d1Q Be3 Qdd2 Bf4 Qbe1 Nc1 Be3 Bd3+ Kf3 Rb4 e4 Qce5 Qcc4 Bb1 Qce2 Rba4 Be7 f8Q Qc5 Qe8 Nd4 Qa8 Qb6 Rg2 Bg1 Bc4 Qa7 g8Q Bf8+ Qc7 Bc5 Re6 Bb6 Rb4 Qaa2 Qcd6 Ba7 Qg7 Q2f2 Qah8 e3 Bcd3 Qde2 Rc4 Qad2 Qa8+ Nc6 Re4 Nd4 Bc4 Be8 Ba6 Bb5 Rh2 Bg2 Rh6 Bh1 Rg6 Kg2 Rg4 Kh2 Re8 Bf3 Rg8 Kg2 Qed5 Kh1 Re6 Bg2 Q5e5 Be4+
1R4q1/1Kp4k/2qp1n2/2b4n/1Nq1N1Q1/2Nn2qr/3Q1r1p/1nB1BBBQ w - - 0 1 legal: proof: e4 a5 b4 b5 a4 e5 d4 exd4 h4 f5 c4 g5 e5 gxh4 Ra3 Ba6 Rah3 axb4 Rf3 b3 Rf4 b4 Re4 Bb5 cxb5 fxe4 Kd2 Kf7 g4 Kg7 f4 h5 e6 h3 b6 b2 g5 h4 g6 d3 Ke3 b3 Kd4 d2 Kd5 e3 f5 h2 f6+ Kh6 a5 h3 e7 e2 e8N e1Q a6 Be7 b7 Ba3 a7 Nc6 f7 Qe3 g7 Bc5 f8B Kh7 Na3 b1N Nd6 b2 Ne4 Qg3 Nc2 Ne5 Ne2 Nd3 N2c3 d6 Kc6 Qc8 Nb4 Nf6 Be7 Qg8 Rg1 Re8 a8Q h1N b8B h2 Kb7 Rf8 Ba7 Qc4 Qe1 d1Q Qd2 Qdb3 Rg2 Qg8 Re2 Qbc4 Re1 Nd5 Bh4 Rf2 Re3 Nf6 Rf3 Ng4 Rf8 Nf6 Rd8 Na3 Re8 b1Q Rb8 Qc2 Bb6 Qe5 Ba7 Ng3 Bb6 Ngh5 Ba7 Rg2 Be1 Nb1 Bb6 Qg3 Ba7 Qgf7 Bb6 Rf2 Ba7 Kg6 g8Q+ Qg7 Qc8 Kh7 Qg4 Qgg8 Bb6 Qd1 Qa4 Qdf3 Qad1 Qf5 Qdf3 Qd7 Qh1 Qc6+ Ka7 Re2 Na4 Bd4 Ba3 Nhf4 Nac3 Kh6 Qgf3 Kg7 Bc1 Rh3 Qg4+ Kh7 Bc5 N4h5 Bb6 Be5 Bg1 Rf2 Rd8 Bd4+ Kb8 Qa4 Kb7 Bc5 Rb8 Qc6+
n2nBn1N/1pp1B3/1k4N1/5p1Q/n2R3K/pN2Q3/bb2rrQ1/2QB1n1n w - - 0 1 illegal: No proof kernel
q1NnnBb1/1q3Q2/1q3bqp/6Qr/6pB/Q4pNp/2k4p/KRN1B2B w - - 0 1 illegal: Other
1BNbK2N/3QnBb1/2Br2bp/6r1/Q2p1k2/2p1q2p/Qq2p3/b2R1NN1 w - - 0 1 legal: proof: e4 e5 b4 g5 d4 b5 c4 f6 h4 gxh4 a4 bxa4 b5 Nc6 Ra3 Nb4 Rc3 Nd5 c5 Nb6 cxb6 exd4 e5 f5 Re3 Qg5 Re2 Qd8 Re4 fxe4 Kd2 Ke7 g4 Ke6 f4 c5 b7 a5 b8Q d5 g5 Kf5 b6 c4 e6 a3 b7 h3 e7 d3 Kc3 d2 Kd4 a2 Kc5 a1B Kc6 e3 e8N e2 g6 c3 g7 h6 Nd6+ Kg4 f5 d4 f6 a4 f7 a3 Qc7 a2 b8Q Bf5 Qbb3 Bc2 Bg2 Qg5 Kd7 Ne7 g8B Qe3 Bc6 Ra5 Ke8 Bg6 Nc8 Bb2 Qd7+ Kf4 Qdc2 a1B Qa4 d1Q Nd2 Ba3 Qa2 Bb4 Nf1 Rg5 Ba3 Ba5 Bd6+ Re5 Bb8 Qb1 Qde6 Bg7 Qd7 Bc2 f8N Bd8 Bc4 Qb2 Bf7 Rh7 Ba7 Re6 Bb8+ Rd6 Ng6+ Kg5 Nh8 Bg6 Rh2 Kf4 Rg2 Bf6 Rg3 Rg7 Rg5 Be4 Ra5 Rg5 Ra6 Bg7 Rb6 Qa3 Rb1 Bg6 Rd1 Qb2
b1bKn2N/q1p4q/k4b2/1pBQRrp1/N2b2QR/p3RN2/3R3p/Q5r1 w - - 0 1 illegal: No proof kernel
1NnNRn2/prb3pQ/qRp1p3/q1r3pQ/3k1BR1/5Q2/N2b2p1/6KQ w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 h5 g4 hxg4 d4 b5 d5 bxa4 d6 Bb7 Bd3 Bd5 exd5 Rh4 Bd2 Rh8 Bg6 fxg6 Bc1 g5 Kf1 Kd7 b4 c3 h4 c6 f4 c2 h5 g3 f5 a3 h6 e6 f6 a2 h7 Qc8 b5 Qb7 b6 Qc7 f7 Qb7 Nc3 Ne7 Qh5 Qc7 b7 Ng6 Nf3 g2+ Kg1 Nf4 Ne5+ Kd8 d7 Ke7 d8R Kf6 d6 Ng6 d7 Ne7 Re8 Qa5 d8Q Nd7 Rb1 a1Q Rb6 Rb8 Na2 Qa6 Qc7 Nc8 Rh4 Bd6 Rg4 Rf8 h8Q Kf5 Qd8 Bc7 Qh1 Qc3 Q8h5 Qca5 Bf4 Ke4 Qf6 c1B Qf5+ Kd4 Qfh7 Rg8 f8Q Bd2 Qa3 Rf8 Qf3 Rf5 Nf7 Rc5 Nd8 Ra8 b8N Nf8 Nd7 Rb8 Rb2 Rb3 Nb8 Rb7 Rb5 Rd5 Rb6 Rc5
Q3Q1N1/pp5B/3R1RN1/pq2bbNr/3QR2b/4ppnn/Q4p2/1b2K2k w - - 0 1 illegal: No possible last move
6RB/n1B1q1np/4q1n1/7N/kBBq1NB1/1p1B1p1b/1nQn1N1r/1K6 w - - 0 1 legal: proof: e4 g5 f4 b5 a4 c5 b4 f5 h4 a5 d4 axb4 e5 cxd4 g3 Ra6 g4 Rf6 exf6 Bh6 Ra3 fxg4 Rf3 gxf3 f5 g4 Ne2 Qb6 Ng1 Bg5 hxg5 Qd8 Kd2 d5 c4 Kd7 Kc2 Kc6 c5 e5 a5 e4 g6 d3+ Kb2 g3 a6 d4 a7 g2 a8N e3 g7 b3 f7 b4 f8B Kb5 c6 e2 f6 e1Q c7 Ne7 g8B Ka4 f7 d2 Nh3 g1Q Nf4 d3 Qc2 Qe6 Bg7 Ng6 f8B Nc6 Nh5 d1N+ Ka1 d2 Bd3 Bd7 c8B Nb2 Nc7 d1N Nd5 Qde7 Nd2 Qd4 Ne4 Na7 Kb1 Ne3 Ndf4 Nf5 Bf7 Rg8 Bh8 Ng7 Rg1 Qd8 Bd6 Qde7 Bc7 Re8 Bd2 Rd8 Bb7 Bc8 Nf2 Rd5 Ng3 Rh5 Bg8 Rh2 Ngh5 Qee4 Rg5 Bh3 Bgc4 Q4e6 Bc8 Nd1 Rf5 Qc6 Rf8 Qce4 Bg4 Q4e6 Qc3 b2 Ka2 b1N Rg8 Nb2 Qc2+ b3+ Ka1 Qe2 Bc3 Nd2 Bb4 Nf1 Kb1 Q2e5 Qd1 Q5e6 Qc2 Nd2+
r1r2BB1/3nN1p1/3n3R/N3RN2/r1b1Rbbn/1B1q4/4N3/qk1KnbN1 w - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 Nf3 Ke7 e4 Kf6 c4 g1N b4 d5 h4 a5 h5 g2 c5 d3 c6 d4 e5+ Kf5 h6 Ke4 e6 f5 e7 f4 e8N a4 b6 a3 b5 a2 h7 Bg4 b7 Nh6 b6 Nf5 c7 Bd6 c8B Bc7 Be6 d2+ Kf2 d1B Ke1 d3 Rh5 Bc2 Ba3 Bb3 Nc3+ Ke3 Rb1 a1R Nd6 Nh4 Bb4 R1a4 Rd5 Rf8 h8R Qd7 Rh7 Rc8 Bg8 Qf5 Rc5 Nd7 b8N Nh3 b7 g1N Rb5 Ng5 Nc6 Ne4 b8N Qg6 Be2 Bc4 Rh6 Qh7 Na5 d2+ Kf1 Qf5 Re1 d1Q Nbc6 Qfd5 Ba3 Q5d3 Rd5 Qa1 Rd4 Nh3 Bc5 Nhg5 Ng1 Kd2 Nf5 Kc2 Bf8 f3 Nce7 f2 Rd5 Bf4 Re5 Qdd1 Bd3+ Kc1 Be2 Nd6 Bd3 Bf7 Bc4 Ngf3 Bd5 Kb2 Bb3 Qd5 Ke2 f1B+ Kf2 Qdd1 R1e4 B7c4 Nce2 Kb1 Rg6 Nd4 Rh6 Qd3 Ke1 Qe3 Rg6 Ndf3+ Kd1 Ne1 Rh6 Qd3+
BN2r1B1/n2b4/B7/r4R2/bn1nBpbb/1NKN1nQB/5rB1/3k1qr1 w - - 0 1 legal: proof: b4 a5 g4 axb4 d4 c5 a4 cxd4 f4 e5 fxe5 g5 Bf4 h6 Ra3 Ra5 Rg3 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 Kd2 Ke7 c4 Ke6 e4 b5 h4 d5 h5 f5 a5 b3 a6 g4 h6 g3 g7 d3 a7 b2 c5 g2 c6 f3 h7 f2 c7 f4 Be2 f1R Nf3 g1N Nc3 b1R Rh6+ Nf6 Nh2 b4 Bf3 d4 Qe1 b3 Nb5 b2 Rh5 Bd7 c8B Nd5 Ng4 Ne2 Ba6 Rf2 Rf5 Nc6 Bg2 Be7 Nf6 Re8 h8N Ndb4 Nf7 Qa5 g8B Qa1 Qg1 Bd8 Qh2 Rg1 Qg3 Qf1 Bh3 Bc8 Nd7 Bh4 Nb8 Bd7 Rh5+ Ke7 e6 Kf6 Qe3 Kg6 e7 Kf6 Rf5+ Kg6 Ng5 Kh5 Bg2 Kg4 Nf3 Kg3 e5 Kg4 Ne1 b1N+ Kd1 Nd2 e6 Nf3 Bh3+ Kg3 Bg2 Rf8 e8B d2 Bg6 Re8 e7 Nd3 Kc2 d1B+ Kb1 Ndb4 Kb2 d3 Nd4 d2 Nd3 Ba4 Nb3 Ned4 Kc3 d1B Qe1 Nd2 Bh3 Bg4 B6h7 Kf3 Bg6 Rfg2 Qg3+ Ke2 B6h7 N2f3 Bg6 Rc8 e8B Rf2 Bef7 Re8 Bd5 Kd1 Be4 Re5 B6f7 Ra5 Bfd5 Ne1 Beg2 Nef3 Be4 Nce5 Nc6 Re8 Nb8 Nec6 a8B Na7
1r2rR1r/Nqk5/3N4/n1r2B2/QrRn1rN1/1pN1r3/N2Rq3/1K1b1Nr1 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd3 f4 Nb1 h6 Qd1 Bd6 Be3 f2+ Kd2 f3 Bg5 Bf4+ gxf4 hxg5 f5 Kf7 Kd3 Kf8 Kd2 Ke8 Kc1 d5 c4 Kd7 a4 b5 h4 d3 e4 d4 a5 b3 c5 g4 c6+ Kc7 a6 g5 h5 b2+ Kd2 g3 h6 g4 a7 g2 h7 g3 f6 b4 e5 Bg4 f7 Nh6 f8R Qe7 e6 Nf5 Ne2 g1R Rh4 g2 Nbc3 b1R Na2 b3 Nec3 Rc1 Rb1 Qb4 e7 Qb7 Rb2 Bh5 Be2 f1Q Rc2 f2 Bg4 Rh1 Rb2 Rg8 h8N g1R Nf7 Rh3 Nd6 Re3 Qf3 Rh8 Qf4 Rce1 Bh3 Bd1 Kc1 d2+ Kb1 d3 Qa4 Nd4 Bf5 Qe2 Re4 f1R e8N+ Kb6 c7 Rf4 Rc2 Nbc6 Nf6 Rb8 c8N+ Kc7 Rb2 Rg5 Ng4 Na5 Rc2 Ndc6 Rc4 Re8 Bg6 Rc5 Bf5 Nd4 Rb2 Rg1 Rc2 Rg3 Rb2 Rge3 a8N+ Kd8 Nab6 Kc7 Ka1 Bc2 Na7 d1R+ Nb1 Rd2 Nbc3 Bd1 Kb1 Rc2 Be4 d2 Bf5 Kd8 Nbd5 Rb5 Nce4 Rb4 Ng3 Rcc3 Nf1 Rc2 Rc6 Rcc4 Ndc3 Rc5 Rb6 Kc7 Rb5 Rcc4 Re5 Rc5 Re4 Nf3 Rc4 Nd4 Rc2 Qef3 Nac8 Be2 Ng3 Qg2 Na7 d1R+ Kb2 Ra1 Rd2 Rg1 Nf1 Bd1 Kb1 Qe2
2r1N3/1K2kBB1/1r4qb/b1N2R1p/1N1B1nB1/b7/1npBr2q/3QrrB1 w - - 0 1 legal: proof: e4 d5 a4 g5 b4 f5 c4 dxc4 h4 gxh4 d4 a5 d5 axb4 d6 Be6 Ra2 Ra5 Re2 Bd5 exd5 Ra8 Re4 fxe4 Kd2 h5 Ke3 b5 Kd4 e5+ Kc5 h3 f4 e3 g4 c3 a5 c2 a6 b3 f5 b2 g5 e4 a7 b4 f6 e2 g6 e1B g7 b3 Bg5 c1B Bd2 h2 Nh3 e3 Na3 b1R Nf4 b2 Ne6 e2 Nc2 Nd7+ Kc6 Qb8 Nc5 Nb6 Bh3 Na4 Rf1 h1R Rf5 Rf1 d7+ Kf7 d8B Ne7+ Kd7 c6 d6 Ng6 Bg4 Nf4 Nb4 Rh7 g8N Bh6 Bb6 Kf8+ f7 Rg7 Nca6 c5 Kc6 c4 d7 c3 Nf6 Ke7 Nc5 Qd6+ Kb7 Rc8 a8B c2 Ne8 Qg6 Be3 Bed2 Ba5 e1R Bd4 Re2 Bb6 Ra1 Bg1 b1Q Bd4 Ba3 d8B+ Kf8 Ba7 Nb2 Ba5 Ke7 B7b6 Qh7 Ba7 Rg6 Bg1 Rf6 B7b6 Qg6 f8B+ Kf7 Bg7 Ke7 Ne4 Rfe1 Bbd4 Bc3 Nc5 Rb6+ Ka7 Qc1 Bd5 Qe3 Bb3 Qh3 Bf7 Rf1 Qd2 Rae1 Qd1 Rf6 Kb7 Qh2 Bc7 Bd2 Bce5 Rd6 Bde3 Bc3 Bd2 Rdc6 Bed4 Rd6 Na2 Ba5 Nb4 Rb6+
r1n1R1n1/2RB1qp1/2rR4/r1NB1N2/b5n1/B1p1b1NK/3Bq2q/1kB3r1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Qd3 g2 Qg3 hxg3 Nb1 Bc5 Kd1 Bd6 Ke1 Bf8 h4 Kd7 b4 Ke6 e4 Ke5 d4+ Kf6 d5 Ke5 d6 Kd4 e5 a5 h5 f5 e6 c5 e7 a4 e8B c3 d7 f4 h6 a3 h7 a2 b6 c4 b7 f3 b5 c2 b6 c3 Ne2+ Kd3 Rh6 g1R Na3 g2 Kf2 Bc5+ Kg3 f2 Nc4 Nc6 b8N Qe7 d8B Be3 b7 Bd7 Nd6 Na7 Na6 Qf7 b8B Nc8 Bg5 Ba4 Ba3 c1N Kh3 Kc2 Bd7 Nd3 Nc5 Ra6 Nf5 Ne5 Rd6 Rc6 Neg3 Ng4 Bc4 f1Q Bd5 Qe2 Rb1 a1R Rb7 Ra2 Rc7 Kb1 Bc1 Rf1 Ba7 g1Q Bb6 Qgf2 Ba3 Bd4 Bd2 Rg1 Bac1 Ra1 Ba5 Be3 Bb4 Nge7 Bba3 Re8 h8R Ng8 Bc4 Re5 Nce4 Ra5 Nc5 Ra8 Bd5 Bd1 Bab2 R1a5 Ba3 Bc2 Bf3 Ba4 Bd5 N8h6 Rf8 Ng8 Re8 Qh2#
N2QRr1q/8/bB2p1nk/nnn5/3Bp1p1/qq3B1n/1r1N1N2/KB3BB1 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 f5 a4 fxe4 d4 h5 Ra3 c5 Rg3 cxd4 Rg4 e6 f5 Bd6 g3 Bf4 gxf4 hxg4 Kd2 Kf8 h4 g5 c4 Kg7 Kc2 b5 Kb2 d5 a5 b3 f6+ Kh6 f5 d3 f7 d4 f8B+ Kh7 a6 d2 h5 b4 c5 g3 h6 g2 f6 d3 a7 g4 c6 Ba6 c7 Kg6 c8B Nc6 h7 Na5 f7 Rb8 a8B Ne7 Nh3 g1N Nf2 Nh3 Bd5 Rb7 Bh6 Rf8 h8B Rb5 Ka1 b2+ Ka2 Kh7 Be3 Ng6 Bb6 Kh6 Bhd4 Qf6 Be2 Qh8 Bf3 b3+ Ka3 Rg8 f8N Rb4 Nd7 Rf8 Bcb7 Rb5 Bc4 Rb4 Bbd5 Rb5 Nc3 b1N+ Kb2 Na3 Nb1 Rb4 Ka1 Nb5 Ba3 b2+ Ka2 Rb3 Bac5 Nd6 Bb5 Rb4 Bb3 Ndb7 Bc2 Rb3 Nc3 b1N Ka1 Na3 Bb1 Rb2 Bc4 Nb5 Rf1 Nhf4 Rh1+ Kg5 Rh7 Nh3 Re7 Kh5 Re8 Kh6 Bd6 Nc5 Bh2 Rf5 Bg1 Rf8 Qc2 d1Q Qd2+ Kh7 Qg5 d2 Qd8 Qe1 Bf1 d1Q Nd5 Nc7 Ne5 Kh6 Nc4 Nb5 Nc7 Qb3 Na8 Qeb4 Nd2 Q4a3+
6N1/qb3N2/p1b1rN2/r1krNQp1/3R2N1/bK1B4/3Bpnq1/2r1BN1r w - - 0 1 legal: proof: f4 c5 e4 f5 d4 cxd4 g4 fxe4 a4 h5 b4 b5 f5 bxa4 g5 Na6 Ra3 Nc7 Rg3 Nd5 Rg4 Ndf6 gxf6 hxg4 Kd2 g5 c4 e5 Kc2 d5 h4 Kd7 h5 Kd6 h6 g3 b5 a6 f7 a3 b6 d3+ Kb3 g2 f6 d2 b7 e3 b8N d4 h7 e4 Nh3 g1Q Nf2 e2 Qc2 d1R Nd7 e1R Bd3 a2 Ng4 a1R Rh4 e3 Nd2 e2 Nde5 Ra5 Nf1 Kc5 Bd2 Qd7 Qb1 Be7 f8N Qa7 f7 Nf6 Qc2 Qg2 Nfd7+ Kd6 f8B Ne4 Bg7 Bb7 Ndf6 Kc5 Qb1 Rhe8 h8N Rad8 Nhf7 Rd5 Bh8 Nf2 Bg7 Kb6 Qc2 Rc1 c5+ Kc7 c6 Kb6 c7 Ba3 Bf8 Re6 Bfb4 Red1 Bbc3 Kc5 c8N Re1 Ne7 Red1 Be4 d3 Be1 d2 Neg8 Ra1 Qd3 Rdc1 Qf3 d1B+ Bc2 Qh1 Qf5 Qe4 Bcd2 Rab1+ Ka2 Qg2 Bd3 Ba4 Nc4 Bac6 Nce5 Ra1+ Kb3 Ra2 Nge3 Rac2 Ra4 Rc4 N3g4 Rf4 Rb4 Rf3 Ra4 Rh3 Rd4 Rh1
2q5/3N2pN/1b1qRBK1/N3qB2/b2Nr2q/rr3Q2/1qp2p2/Nk1B1N1n w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Nh3 f4 Ng1 dxc6 Na3 c5 Nb1 c4 a4 Nc6 Ra3 h6 Re3+ Nce7 Re5 h5 Rg5 Nf5 gxf5 Nh6 Rg2 Ng8 Rg4 hxg4 Kf2 Ke7 h4 Kf6 d4 c5 e4 b5 e5+ Ke7 h5 b3 e6 Kf6 h6 b4 d5 Ke5 f6 Ke4 d6 b2 h7 c3 d7 b3 e7 c2 e8N c4 f7 c3 a5 Ba6 Ne2 Ne7 Na3 b1Q Bb2 c1Q Nc7 Nf5 Rh6 Bb5 a6 Ng3 a7 Qh4 d8N Bc5+ Nd4 Ba4 f8N Bb6 Nd7 Re8 h8N Re6 Ba1 b2 Nhf7 Qcc2+ Be2 Nh1+ Kf1 f2 Kg2 f1R Nd5 g3 Ne3 Rf3 Nb7 Qd3 Rg6 Qc1 Nac2 b1Q Nf1 Qbb2 Na5 Qdb5 Rf6 Qe5 Rg6 Ree8 Re6 Re3 Bh5 Re7 Qf3+ Kd3 Ng5 Rb8 Kg1 g2 a8B Ree8 Nh7 Qd6 Rh6 Re4 Re6 Qce1 Bd5 Qeg3 Bg6 Qgg5 Bb3 Qge5 Bf5 Ra8 Qg4 Rg3 Qh3 f3 Kh2 f2 Nac6 Qd8 Na5 Qc8 Qg4 Rf3+ Qg3 g1Q+ Kh3 Re3 Qf3 Qg5 Na3 Bc5 Bd1 Rb8 Nac2 Rb3 Nhf8 Bb6 Nh7 Qa2 Bb2 Ra3 Na1 c2 Nh2 Kd2 Bc3+ Kc1 Nf1 Qgd8 Bb2+ Kb1 Bc3 Re1 Bb2 R4e3 Kg4 Reb3 Kh5 Re4 Kg6 Qh4 Ne2 Qeh2 Bf6 Qhe5 Nd4 Qb2
2N5/BB1p4/2n2bbK/2N1B3/qq1N2Q1/R1n1nNp1/1rN2pq1/bn1k3N w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a3 Ra5 a4 Rf5 gxf5 b5 Ra3 Qb6 Rc3 Qd8 Rc6 h6 Rg6 h5 Rg4 hxg4 Kd2 Kf7 e4 Kf6 c4 Kg5 h4+ Kh5 a5 g5 a6 b3 a7 g3 a8N Kg4 c5 g2 c6 d3 e5 b4 f6 b2 e6 b3 h5 Qb6 e7 Qa7 e8N Ba6 f7 Be7 f8N Bf6 h6 Ne7 h7 Nd5 c7 Ne3 c8N Nc6 Na3 b1Q Nab6 b2 Ng7 Rg8 Qa4 f2 Nf3 g1B Bg2 f1Q h8B Bb7 Qc4 Qa4 Nfe6 Kg3 Qe4 Kf2 Nf5 g4 Ned4 Rg5 Ng3 Rb5 Rh6 Ba6 Bh1 Qg2 Nac2 Bb7 Rh3 Ba6 Kc3 d2 Kd3 d1N Qf5 Rb3+ Ke4 Bc4 Bd2 Bf7 Bb4 Bg6 Bc5 Bh4 Be5 Bf6 Nc4 Rb7 Nd2 Rb4 Ba7 Nc3+ Kd3 Qe1 N2b3 b1N Nc5 Rb2 Qe4 Ncd1 Qf5 Qeb4 Ke4 Qf1 Nfe1 f3 Kf4 Ndc3 Qg5 Qg2 Qh5 Bh8 Kg5 Bf6+ Kh6 Bh2 Nge4+ Kf1 Nf2 Bg3 Qf5 Bgh4 Qg5 Bh8 Qf5 B4f6 Qd3+ Ne2 Ncb3 g3 Nc5 Qh2 Nb5 Nd2 Nca3 Nd4 Bd6 Rb1 Qf5 Be5 Qg4 Bhf6 Bdb8 Qg1 Rh2 Rb3 Bc7 Nb1 Rg2 Ndc2 Bcb8 Ba1 Be5 Nec3 Rh2 Ke2 Rg2 Qba5 Nd4+ Kd2 Rh2 Nb4 Bg2 Qb6 Nh1 Qbb5 Bh3+ Kc1 Ra2 f2 Nac2 Rb2 Ra3 Qb8 Bf1 Qg2 Ba6 Nc6 Nef3 Qbb4 Bb7 Kd1
3Rq1bR/3B2n1/1q1KRr1p/Q2pB3/4q1R1/p1Bbp2k/NnR1r3/1R1r4 w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 Bd2 e5 Bc1 e4 g4 Qc7 h4 Kd8 f5 Nf6 Nc3 Nh5 Nd5 Nf6 Nf4 gxf4 g5 Ke8 g6 Bh6 Rb1 Ng8 Ra1 Bg5 hxg5 Qd8 Ke2 a5 b4 e5 c4 Ke7 f6+ Ke6 b5 Kf5 f7 Kg4 f8B d5 c5 h6 g7 e3 Kd3+ e2 b6 a3 b7 a2 g6 a4 c6 f3 c7 e1Q Bca3 Nd7 b8R Ngf6 g8R Ra6 g7 Ne8 Rab1 a1Q Bad6 a3 Bg2 Nb6 Ne2 f2 Qa4 f1B Qa5 Be6 c8R Qb2 Rc2 Na4 Bh3+ Kh4 Bc7 Qb6 Bb4 Bf7 Rf8 Bg8 Bc3 Qd7 Rg1 Qdc6 Bd7 Qg6+ Rf5 Kh3 Rc8 Qh4 Rg4 e4+ Kd2 d3 Re5 Qf7 Re6 Nb2 Nc1 Qfe7 Na2 Qd8 Bf6 e3+ Kc3 d2 Ra8 d1R Bce5 Bd3 Rc8 Qe7 Rd8 Rh7 Rg1 Qe4 Rg4 Bf7 g8R Rg7 Rh8 Bg8 Bh4 Rf7 Be1 Rf2 Bd2 Re2 Be1 Qa7 Kb3 Ng7 B1c3 Nc4 Ka4 Qe8 Kb4 Qb8+ Kc5 Nb2 Re7 Rg6 Re6 Rf6 Kc6 Qb5+ Kd6 Qb6+
1Rn3n1/k1KqBb1B/2p3RB/5B2/1pn1B3/B2nbNp1/1Rp3qn/Q3r3 w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 b5 Na3 h5 Ng1 f5 Nc2 f4 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Bd6 Ng4 hxg4 Qa4 Bc5 Qd1 Bf8 Kf2 Kd7 h4 Kc6 d4 Kb7 e4 g5 a4 c3 a5 c2 e5 b3 f6 b2 a6+ Ka7 h5 b1Q e6 b4 d5 Ne7 f7 Nd7 h6 Kb8 h7 Nf6 d6 Bh6 f8B Ka7 d7 Nfg8 Bh3 Qa2 Bg7 Qd5 Rb1 Qb7 Ba3 g3+ Ke1 g2 Kd2 f2 Kd3 f1N Kd4 f3 Kc5 f2 Bf5 g4 Rb2 g3 Nf3 g1N Qa1 Bg5 Rh6 Ne3 Rg6 f1N Bh6 Qa8 Kb5 Nh2 Kc5 Qe8 d8B Qf7 Kb5 Nh3 Ka5 Nf4 Kb5 Nc6 e7 Nd3 e8B Nc4 Be7 Be6 Bd7 Be3 Be8 Kb8 a7+ Kb7 Bd7 Qg7 Be4 Bf7 Bdf5 Qd4 Qa2 Qd7 Qa1 Qae8 a8B+ Ka7 Bb7 Qa8 Ba6 Nf6 Bc8 Re8 h8R Ng8 Bb7 N6e5+ Bbc6 Nb6 Ka5 Nec4+ Kb5 Qd4 Bb7 Nc8 Kc6 Qc3 Kd7 Qd2 Bbd5 c6 Kc7 Qg2 Rf6 Bh5 Bde6 Bf7 Bh7 Bh5 B6f5 Bf7 Rg6 Qb8+ Kd7 Qe5 Bd8 Re6 Be7 Qg7 Kc7 Bd4 Bd5 Re1 Bde4 Be3 Rd6 Qg4 Be6 N8b6 Bd7 Nf6 Rb8 Ng8 Rg6 Nc8 Be6 Qf5 Bd7 Qd5 Bdf5 Qd7+
7q/nqR5/kn2Rb2/q1pQ1r2/1RR1n1N1/RBN2p1R/1ppN1K2/1r4n1 w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Bb2 h6 Ng1 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 e4 Kd7 d4 Kc6 h4 Kb6 a4 c5 f6 f2+ Ke2 g4 d5 g5 a5+ Ka6 e5 b5 h5 g3 h6 g2 e6 c3 e7 g4 e8R g3 d6 c2 d7 b3 f7 b4 h7 b2 Nf3 g1Q Nfd2 g2 Rh3 b3 Re6+ Nc6 Ra4 Bg7 f8R Bf6 Rf7 Qh1 Rb4 Rb8 Nc3 b1Q Rc4 Qb6 d8N Na7 Nc6 Ne7 Ne5 Rhf8 h8R Nec8 Rc7 f3+ Ke3 g1N R8h4 Qa2 Ng4 Qa1 Bd3 f1N+ Kf2 Ng3 Be4 Qc6 Bd5 Nb6 Rb4 b2 Bb3 Ra8 Ndb1 Rad8 Qd5 Qb7 Nd2 Ne4+ Ke3 Rf7 Nh6 Qh2 Qh5 Rh7 Nc4 Rd1 Nd2 Nc6 Rg3 Ka7 a6 Rb1 Qd5 Nd6 Rhc4 Ne4 Ng4 Qh4 Rh3 Rh5 Rh1 Rf5 Rh3 Ka8 a7 Qh8 Rf7 Qd7 Rfe7 Kb7 a8R Qa4 Ra5 Qb5 Ra3 Qa5 Rg7 Ka6 Rf7 Qb7 Rc7 Nd6 Kf2 Na7 Ree7 Qh5 Re8 Qh8 Re6 Ne4+
2B1Qqnb/1R1p3r/1p2b3/1k1n3R/2R2R1N/1NqR1NR1/pp1q2p1/4K2b w - - 0 1 illegal: No possible last move, all moves rejected
6q1/1RNb2rR/Bb3ppr/1NR2rN1/1R2R1QK/3k2p1/1p1r1p1p/3n2R1 w - - 0 1 illegal: No possible last move
bb6/pBbqB3/1b3Q1r/4b1Bk/6N1/q3R3/nNK1BBnN/q2N3q w - - 0 1 legal: proof: f4 c5 b4 h5 a4 e5 c4 exf4 g4 hxg4 a5 Nc6 a6 Nb8 axb7 Ne7 Ra3 Ng8 d4 cxd4 Rc3 dxc3 bxa8B Qe7 Qd3 Qg5 Qd1 Qd8 h4 g5 e4 f5 e5 Kf7 e6+ Kg6 b5 d5 c5 c2 Kd2 d4 c6 f3 e7 f4 e8N d3 b6 g3 c7 f2 b7 g4 Kc3 g2 Qf3 g3 Qe3 d2 Qd3+ Kh5 Qe2+ f3 Qc4 d1Q Bg5 c1B Qd3 Na6 b8B Ne7 Qd2 Nb4 Bb7 Nf5 Qd6 Bf4 Rh3 Ne3 Qf6 Bg7 Be2 f1Q Kb2 Q8d7 Nc3 Q1d6 Nd1 Rh6 Kc1 Kg4 h5 Na2+ Kb2 Qa3+ Kb1 Rg6 h6 Bd6 h7 Rh6 h8B Qe1 Bb5 f2 Nf3 g1B Be2 g2 Rg3+ Kh5 Nh2+ Ng4 Re3 f1Q Kc2 Qea5 Qd4 Bge5 Bhf6 Bf2 Qf4 g1B Be7 Bg3 Qf6 Qfe1 Bbf3 Bb7 c8N Bgf4 Nb6 Ba8 Bb7 Bc7 Nc4 Bf2 Ncb2 Qh1 Rg3 Bfb6 Re3 Bd8 Bbd6 Bdc7 Bc5 Bg3 Nd6 Bb8 Ne4 Bec7 Nef2 Qae1 Nc3 Qa1 Ncd1 Bge5 Nf3 Nh2 Ng4 Nf1 Nfh2 Qd4 Rd3 Qd7 Bf2 Ne3+ Kd2 Nf5 Kc2 Nh4 Re3 Ng2
KQ2nBn1/1Q5n/2b5/4N2R/1BQQ2Q1/1r2rrbn/Qrbn1N2/q1k2q2 w - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 a3 h5 Bh3 g6 g5 b5 Bg4 hxg4 a4 f3 axb5 Rh7 Ra6 Rh4 Rf6 Rh8 Rf5 gxf5 Be3 f4 Bd2 Rh3 Bc1 Rh8 Kf2 Ke7 h4 Kd6 e4 Ke5 c4 a5 b6 d5 b5 f5 g6 d3 g7 Kd4 h5 g3+ Ke1 a4 Kd2 f2 c5 f1N+ Ke1 f3 h6 f4 e5 a3 b7 a2 b6 a1Q c6 g2 Kf2 d2 h7 Kd3 c7 d4 e6 Nh2 e7 Ra3 e8Q Nd7 b8B Bd6 b7 Ndf6 Nc3 Rb3 Nce2 Bd7 c8Q Bc6 Qh5 Qf8 Ba7 Ne8 Nh3 g1N Qf1 Kc2 b8Q d1R Bc5 d3 B1a3 d2 Nc1 Re1 Bcb4 d1B Qcb7 Ree3 Qg4 Kb1 Qfg2 Bc2 Nd3 Rb2 Ne5 Kc1 Qe6 Bc7 Qa2 Qf6 Bf8 Bd6 Bb4 Ng4+ Kf1 Qf5 Nf2 N4f6 Rh5 Nh3 Qg4 Bc7 Ne4 f2 Kg2 f1N Qc4 Bd7 Nf2 Nd2 Qa2 f3+ Kg3 Ne7 g8Q Bc6 Q8c4 Rg8 h8Q Nh7 Qf6 Rh8 Qd6 Ng8 Qdd4 Qd3 Bc3 Qf1 Bcb4 Ng1 Kf4 Rbb3 Ne4 f2 Kf5 Nh3 Ke6 Bb5 Kd5 Bc6+ Kc5 Bd6+ Kb6 Rb2 Nf7 Bg3 Ka7 Reb3 Bbd6 Qe1 Bb4 f1R Qbd6 Nef6 Q6e5 Nh6 Qeb8 Rff3 Bfe7 Re8 Nf2 Nhg8 Bf8 Ree3 Ne5 Ne8 Ka8 Qf1
1q1R4/2b1rBR1/qbbB1KR1/1Rbb2b1/2q1QR2/N2B3B/kn5q/3r1r2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 Nd2 Na6 Ndf3 Nc7 Ng5 Nd5 Ne6 fxe6 e5 Ndf6 exf6 e5 Qe2 e4 Qf3 Qa5 Qd1 Qd8 Kd2 Kf7 c4 g5 a4 d5 h4 b5 c5 e5 a5 d3 Ke3 g3 c6 d2 a6 b3 h5 g2 a7 b4 c7 b2 h6 b1Q h7 g4 Qe2 d1B Qc2 b3 Ra6 g3 Qd2 b2 Nf3 g1B+ Qf2 g2 Bb5 d4+ Kd2 d3 Ke3 d2 Ra3 Ba4 Ne1 d1R Rh4 Qd4+ Ke2 e3 Kf3 e2 Nc2 e1B Qg3 e4+ Kg4 e3+ Kg5 e2 Nb4 Ne7 Bc6 Ng6 Rh1 Bc5 Re3 Re8 h8R Qbd3 Bb5 b1Q Qf3 Nf4 R1h5 Bd2 Qe4 e1B Ba3 Re7 Nc2 Be6 c8B Bg3 Rg8 Bd5 Rg6 Q4c4 Bba6 Rb8 a8B Bac6 Re2 Bb6 Bd6 Bgc5 Na3 g1Q Rg2 Qh2 Bd7 Rf8 Bdc8 Ke8 f7+ Kd8 f6 Bde3 Bcb7 Kd7 Kf5 Qe2 Rhg5 Nd3 Bc8+ Kd8 Rg7 Nb2 Rh5 Bgf4 R2g6 Bh6 Be6 Bc7 B8b7 B5b6 Bbc8 Bec5 Rhg5 Qec2 Rh5 Q2a4 Bb5 Qa6 Rhg5 Rfe8 f8R Rf7 Rfg8 Re7 Bf7 Rf8 Bb7 Kd7 Ba8 Qb4 Bd3 Qbc4 Bb7 Bb5 Bc8+ Kc6 Bfe6 Ba4 f7 Bb5 Kf6 Ba4 Nc2 Kb5 Na3+ Kb4 Bh3 Kb3 Bce6 Bac6 Re5 Ra8 f8R Ka2 Bf7 Rd8 Reg5 Rf1+ Rf5 Qd1 Rf4 Qg4 Rg5 Qgc8 R7g6 Rdd7 Rd8 Qca8 R8g7 Qb8 Qf5 Ree1 Rh5 Rde7 Qe4 Rd1 Rdg8 Be3 Qd4 Bf3 Rb5 Bfd5 Qe4 Bec5 Rd8 Bg5+
3B2n1/rq1kNNn1/N2rr1qn/4rr2/1R1b4/NN2R3/qn4r1/1R1KQ2R w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 f5 Qd2 h5 Qd3 f4 Nb1 b6 Bh3 Bb7 Qd2 Be4 Qd1 Bf5 gxf5 Ra5 Bg4 hxg4 Na3 Ra6 Nb1 Ra8 e4 d5 c4 g5 a4 g3 h4 g4 h5 f2+ Ke2 f1N a5 d3+ Ke1 f3 a6 b3 e5 b2 h6 g2 e6 b5 a7 d4 e7 b4 c5 g3 h7 b3 c6 Qd5 f6 Bg7 c7 Qb7 c8N Kd7 e8N Nh6 f7 Nc6 f8R Ne7 Bg5 Ne3 Rf7 f2+ Kd2 f1R Rf2 N3f5 Nh3 g1R Rf3 g2 Qc1 Neg8 Na3 b1Q Be7 b2 Rf2 Qa2 Nc7 b1R+ Qb2 Rbc1 Re2 Rc5 Re3 Re5 Rb1 Bf6 Bd8 Ng7 Ne7 Rff5 Nf4 Re1 Rh5 g1Q Ne2 Qg6 Rh1 Rg1 Qc2 Rg2 Kd1 d2 Nc1 Re6 Nb3 Ree5 Qb2 Re6 Kc2 d1N+ Kc1 d3 Qa1 Nb2 Na6 d2+ Kc2 Rb8 a8R Bc3 Ra7 Rc8 Ra8 Rcc5 Rc8 Ra5 Rc4 Bd4 Rb4 d1R+ Re2 Bf2 Re3 Rdd6 Kc1 Rae5 Kc2 Nf6 Kc1 Rf8 h8N Nfg8 Nf7 Bg1 Bc7 Ra8 Bd8 Bf2 Kc2 Ra7 Kc1 Nd3+ Kd1 Bg1 Qc3 Bf2 Qe1 Bg1 Rf3 Bd4 Re3 Nb2+
1N2N1qr/R1Kpn2Q/q7/2B3N1/1Nbb1brn/R2N2Q1/3n4/Nk2qn1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 h4 g5 b4 d3 c4 g4 c5 a4 c6 d2 c7 a3 b6 a2 b5 Ba6 c8N Nh6 h5 Bc5 b7 Nc6 b8Q Qg8 b6 Be3 Kd6 Ke4 b7 f5 Kc7 f4 Nb6 f3 Rh3 f2 Na3 f1N Nf3 g1B Ne1 g2 Nd5 g3 Nb4 Nf5 h6 Nce7 h7 Nh4 Nac2 Bc4 Ba3 Ra4 Qb1 d1N Ned3 Bd4 Qe8 Bde3 b8N Nf2 Qb3 Nh1 Qf7 Bgf2 Qc3 g1Q Qcg7 g2 Qg3 Qg6 Qg7 Qa6 Qh6 Rf8 h8N Bd4 Qhg7 Bfe3 Nf7 Rh8 Qh6 Qf2 Qh5 Qe1 Ng5+ Kf5 Qh6 g1N Qg7 Ngf3 Qh7+ Qg6 Nd5 N3d2 Bc5 Qc1 N5b4 Qe1 Rc1 a1Q Rb1 Qa2 Na1 Ba6 Rb2 Qg8 Ra2 Bc4 Ra3 Ra6 Ra4 Re6 Ra6 Re4 Ra7 Rg4 Qh6 Bg1 e3 Qa6 Qh7+ Kf6 e4 Bgf2 Qh5 Bfe3 e5+ Kf5 e6 Nb1 Nf3+ Ke4 Qh6 Nbd2 Qh5 Bg1 Qh7+ Ke3 Ng5+ Ke2 Rb7 Kd1 Ra7 Bge3 Nf4 Nef5 e7 Kc1 e8N Ne7 Nfd3+ Kb1 Rh2 Nb3 Ra2 Nbd2 Ra3 Bf4+
5R2/K1B1BRq1/2rn4/rr4qn/B3pqBN/q2kBQ2/3q3b/q1Q1b2B w - - 0 1 illegal: No possible last move
5b1B/3BnKnr/p7/r1q1rQ1B/bk1B2bB/2pQ1B2/1n3N2/Nq4qR w - - 0 1 legal: proof: b4 d5 a4 e5 f4 exf4 h4 g5 c3 gxh4 Ra3 b6 Rb3 b5 c4 dxc4 axb5 cxb3 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 h5 d4 f6 b6 h3 b7 h4 d5 b2 b5 a6 g5 f3 g6 c4 g7 Kc5 d6 f2 b6 h2 d7 c3 Kf5 h3 Ke6 f5 e4 f4 e5 f3 Be2 f1R Na3 b1Q Qd3 f2 Nc2 Rh7 Bh5 Nf6 g8B Nc6 b8Q Ne7 b7 Qa5 Na1 Ne8 Be3+ Kb4 Bd4 Ng7+ Kf7 Qc5 d8B Bg4 e6 Rc1 Qf5 f1B Qg3 Bb5 b8B Ba4 Bbe5 Rb8 Qgf3 Rb5 Q3d3 Re1 Bf6 Ra5 Bh4 Nc6 e7 Re5 e8B Ne7 Bb5 Re3 Bd7 Re5 Ne2 Qg1 Ng3 Qb1 Bf6 Qg1 Ne4 Qb1 Rf1 h1Q Nf2 h2 Bh4 Qg1 Rc1 Nc8 Bdf6 h1N Rf1 Rh6 Bh7 Ne7 B7g6 Rh7 Rc1 Bh3 Bf3 Bg4 Bh5 Qc2 Ne4 Nf2 Rf1 Nd1 Nf2 Nb2 Rb1 Qg3 Rh1 Qb1 Bb7 Qgg1 Bf3 Ne6+ Bg7 Rh6 Bh8 Ng7 Qf6 Rh7 Qf4 Rh6 Qff5 Rh7
RN1n3b/2R5/BkB5/2b1rrbK/b1p2q1b/2Q5/2RRpBn1/1qB1B1n1 w - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 g5 c4 dxc4 Nc3 h6 Nd5 gxf4 g5 h5 Nf6+ Kf7 Ng4 hxg4 Ra6 Ke8 Ra5 Kd7 Ra1 Ke8 Ke2 c3 Qe1 c2 h4 Qd3+ Kf2 Kd8 b4 a5 b6 c5 b5 e5 g6 f3 Kg3 f2+ Nf3 e3 h5 a4 Kh4 a3 h6 g3 h7 e4 g7 g2 b7 Kc7 Kh5 g1N Ne5 a2 Nd7 Ne7 g8B Nd5 Rh2 Nc6 b8R Ra5 Ra8 Ba6 Rb1 a1B b6+ Kb7 Bf7 Bb5 Be8 Ba4 Rb4 Be7 Rc4 Rf8 h8B Bd4 Be2 f1Q Rg2 Bb2 Bc3 Qf4 Bb4 Qb3 d4 Bg5 Qg3 Rf5 Be1 Qb4 Bd3 Qb5 Rd2 e2 Qf3 Ne3 d5 Be5 d6 Ng2 Qe3 Bh8 Rc8 Qb1 Rc7+ Ka6 b7 Qg3 b8R Rb5 Ba3 c1B Rcc2 Bcb2 Rbc8 Bbd4 Qf3 Bf2 Bc1 Ka5 Bc4 Ka6 Qc3 Bfe3 Nf8 Kb6 d7 Nd8 Ra8 Qf4 Bd3 Bf2 Bc4 Ra5 Ba6 Bfh4 Ne6 c4 Nd4 Rae5 Nc6 Qb5 Qb3 Bf2 Nb8 Bc5 Qa3 e3 Qc3 Qb1 Bg3 e1B Bh4 Nf7 d8B e2 Bc6 Bef2 Bf6 Re4 Bd4 Nd8 Be3 Ree5 Bd4 Bg3 Be3 Bh2 Be1 Bg3 B3f2 B3h4
B2r2NK/1Qq3Q1/1Q1Q2R1/rB1qQ3/1q2nq1N/3pn2b/1pb4k/brQ5 w - - 0 1 legal: proof: b4 c5 d4 cxd4 e4 g5 f4 f5 exf5 a5 f6 axb4 a3 Qc7 f5 Qd8 g4 h6 a4 Rh7 Bf4 Rh8 Ra3 Kf7 Rg3 gxf4 g5 Ke8 g6 Ra5 Rg4 Ra8 Rg5 hxg5 Kd2 b5 Kd3 e5 Ke4 d5+ Kf3 Kd7 Kg4 Kd6 c4 e4 h4 Ke5 a5 e3 g7 f3 h5 e2 h6 e1Q Kh5 Kf4 Kg6 Kg3 c5 d3 a6 g4 h7 f2 a7 d2 f7 b3 f6 d4 c6 b2 c7 b4 Qe2 d1B Qc4 b3 Nf3 Na6 Nbd2 b1R Nh4 Nh6 g8Q Nc5 Qg7 Qd5 Rg1+ Kh2 Qc1 g3 Ne4 g2 Bb5 Bh3 c8Q f1Q Qb7 d3 Qb6 Bd6 f8Q Qb4 f7 Be5 Qfb8 Bc2 f8Q Ng4 Qfd6 Rd8 h8Q Ne3 Kh7 Qf4 Nf6 Ba1 Q8b7 b2 Ng8 Ne4 Qge5 Rf8 Qhg7 Rfd8 Rf1 g1Q Kh8 Qg4 Rg1 Qd7 Rg5 Qc7 Rg6 Rac8 a8B Rb8 Q7a7 Rb7 Qb8 Ra7 Q8b7 Ra5
2r3b1/1Qqqp3/B1B1nQ1b/1B2r1Nn/1Bq1Rr2/2p2B2/1n1k1N1K/r2B4 w - - 0 1 legal: proof: e4 c5 a4 g5 c4 f5 b4 fxe4 h4 gxh4 Ra3 a5 Rc3 axb4 d4 bxc3 dxc5 Qb6 Bb2 Qa5 Bc1 Qd8 g4 Kf7 f4 Kf6 Kf2 b5 Kg2 h5 f5 Ke5 g5 d5 f6 e3 g6 Kf4 g7 b4 c6 b3 f7 h3+ Kh2 d4 a5 b2 c7 h4 a6 d3 c5 d2 a7 e2 c6 Ke3 Qb3 e1R Bd3 Nd7 Qa2 Nc5 Qb3 Be6 c8B Nf6 g8B Nh5 c7 Qd7 Bca6 Rc8 a8B Bh6 f8Q Bc4 Qf5 Ne6 Qf6 Rf1 Bb5 Rf4 Be2 Rh7 Bg4 Rg7 Bd1 Rg5 Nf3 Re5 Ng5 Bd5 Na3 b1R Bac6 Ra1 Nc4+ Kd3 Bf3 d1N Ba3 Nb2 Ne3+ Kd2 Re1 Bc4 Bb4 Bd5 Kh1 h2 Nd1 Bc4 Kg2 Bd5 Re4 h1Q+ Kf2 Qh3 Kg1 Qf1+ Kh2 h3 Nf2 Qc4 Bf7 Nc5 Bg6 Bg8 Bf5 Ne6 B5g4 Re8 c8B Rf8 Bca6 Rc8 Bd1 Qc7 Kh1 h2 Bf3 Nhg7 Kg2 h1Q+ Kg3 Qhf1 Kh2 Nh5 Qa2 Qd4 Qd5 Qc4 Qd7 Qa5 Qc7 Qd7 Qb7 Qac7
q2B2R1/1k2p1rN/1n1b1q2/5rB1/6K1/b2B1R1B/1nRqp1BR/2nqn1Q1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 f4 h5 e4 hxg4 f5 b6 Nd2 a5 b4 axb4 Ndf3 Ba6 Ng5 Bd3 Ne6 fxe6 f6 e5 Ne2 Bc4 Ng1 Be6 Rb1 Bf5 exf5 e4 Ra1 Ra5 Bh3 Ra3 Bf1 Ra8 Ke2 d5 c4 Kd7 a4 Kc8 h4 g5 f7 b5 f6 d3+ Ke3 b3 h5 g3 a5 g4 Kf4 b4 h6 e3 h7 g2 a6 b2 c5 b1Q a7 d4 c6 g3 c7 b3 Rh2 d2 Ra2 b2 Ra6 e2 Ra1 d3 Qa4 d1Q Kf3 d2 Ra2 Nh6 Qc4 Ng4 Ra6 Qa2 Rd6 b1Q Ba3 Qb6 Bb4 Nd7 Qd4 Nf2 Rc6 Nd3 Nh3 g1N+ Kg4 g2 Ba5 Nc1 Rc2 Nf3 Ng5 g1B Bg2 Bh6 f8R Ne1 f7 Qf6 Rg8 Nb6 f8R Be3 Rf7 Bf4 Qg1 Bd6 Bh3 Rb8 a8B Qaa1 Bag2 Ra8 Rgg7 Rg8 h8B Qac3 Rg6 Rg7 Nh7 Bhf4 Rg5 Ba3 Rf8 Qcc6 Rg6 Kb7 c8B+ Ka7 Ba6 Bfd6 Bb5 Kb7 Bd3 Qd5 Rg8 Rc8 Rf8 Rc5 Rg5 Qa8 Rg8 Rf7 Rf5 Rb5 Bg7 Rc5 Bh6 Rg7+ Bg5 Rb5 Rc6 Qa2 Rf3 Rf5 Bf1 Qa4+ Rc4 d1N Bfg2 Qd7 Rc5 Qd2 Rc3 Nb2 Rc2 N6a4 Bc7 Nb6 Bd8 Qda4+ Rc4 Qad1 Rc7+ Kb8 Rc2 Kb7
3KNRb1/1rrN2p1/kpQ1r2b/2Q2R2/NBq5/N3b1N1/2qbrn1q/4N3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 Bc4 Na6 Be6 fxe6 Qd3 Nc7 Qd1 Nd5 e5 Ndf6 exf6 e5 Be3 e4 Bh6 Ra5 Bc1 Ra8 Kd2 e5 a4 d5 c4 Kd7 h4 Kc7 a5 d3 Ke3 b3 c5 g3 c6 g2 f7 d2 a6 Kb6 f6 b2 h5 Ba3 f8Q Be6 a7 Rc8 a8N+ Ka6 f7 Qh4 c7 Qh2 h6 Nf6 Qf3 d1Q h7 Qf1 Nb6 Qc4 Qc5 Rhe8 f8N Bg8 h8N Re6 Na4 b6 Ne2 g1B+ Kd2 d4 Nf7 d3 Ng5 Bf2 Rf1 Ng4 Ng3 Bd4+ Qg2 Bf2 Nf3 e3+ Kd1 e2+ Kd2 e1R Ra2 Qd5 Kc3 e4 Bd2 e3 Qh1 Qb3+ Kd4 Qc3+ Kd5 e2 Ra1 Qb4 Bc3 d2 Qg2 Qb5 Bb4 Bd4 Ra2 d1R Rf2 Rd2 Qh1 Re7+ Kd6 Qc4 Rf1 Rb8 c8N Rc7 Nd7 Rbb7 Ke7 Bf2 Ke8 Rd6 Qg2 Re6+ Kd8 Bg1 Nd6 Bf2 Nbc3 b1Q Ncb5 Bc1 Ne8 Bh6 Na3 Bfe3 Rd2 Qbc2 Rd5 Rd1 Ne1 Rd2 Rf8 Nf2 Nd3 e1B Rdf5 Re2 Qgc6 Bc3 Ne1 Bcd2
2Bn2RB/3B3r/2B3qn/1K2qR2/3Rp1k1/q1Q1np2/1bp1N3/BnbR2r1 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Qe2 d5 Qd1 dxc4 g4 Be6 Nc3 Nf6 Nd5 Bf7 Nf4 gxf4 h3 Bh5 g5 Bg4 hxg4 Ng8 Ke2 Kf7 a4 b5 d4 h5 g6+ Kf6 a5 Kg5 d5 c5 g7 e5 d6 e3 f6 f3+ Ke1 h4 f7 h3 d7 c3 a6 h2 a7 b3 Ra2 c2 Bd3 c4 Ra6 b4 Ra5 c3 Ba6 b2 Bc8 b1N Qd4 b3 Bb2 c1B Ba1 b2 Ne2 Qe8 d8R Nh6 g8R+ Bg7 f8B Nc6 Rf1 c2 Qc3 h1N Rd4 Nd8 Bc5 Rb8 a8B Ng3 Bc6 Ngf5 Bb4 Kh4 g5+ e4 g6 Kg4 Be7 Rh7 Bf6 Qe5 Rc5 Bh8 g7 Rb4 Re8 Rb7 g8B Rbg7 Bge6 Rg5 Rg8 Rg6 Nf4 e2 Bed7 Rg5 Ne6 Ne3 Nf4+ Qe6 Rf5 Qe5 Be7 Bg7 Bf8 Bf6 Bg7 Rg6 Kf2 Rg5 Bh8 e1Q+ Kg1 Qh4 Ne2 Qh5 Kf2 Qg6 Rh1 Na3 Rf1 b1Q Rfd1 Qb3 Ke1 Bb2 Kd2 Qa2 Qd3 Bc1+ Kc3 Nb1+ Kb4 Bg7 Qc3 Qa7 Qc5 Qa3+ Kb5 Kh3 Rf1 Rg1 Rfd1 Kg4 Rd5 Qh2 R5d2 Bc3 Rd4 B3b2 Qc3 Qe5+
1r1n4/1r6/6Nn/4qpbN/p1Q1Rq1p/2qqbR1N/2B1NK2/NQ1Nn2k w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Ra3 g4 Ra2 exf6 Ra3 f5 Ra1 f4 Be3 g3 Kd2 Qf6 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Qd8 e4 Ke7 Ke2 Kd6 c4 Ke5 b4 f5 c5 d5 b5 h5 c6 a5 g6 a3 g7 a4 b6 a2 g5 h4 c7 Qe8 c8N Bd6 g6 Rh7 b7 Bc5 Nc3 Nc6 b8N Nh6 g8Q Nd8 Qb1 Rb7 Na6 Rab8 g7 d3+ Kf3 d4 Na7 d2 Nab5 d1Q+ Nce2 d3 Nc3 d2 Nb4 Qe1 Nh3 d1N Nc2 Be3 Qc4 Nb2 g8N Nd3 Ne7 Qd2 Nd1 Qc3 Rg1 Qb5 Rg3 Qba5 Kg2 Qd5 Rf3 Ne1+ Kh2 Qc5 Bg2 f1Q Ng6+ Kd6 e5+ Kc6 Qcb4 Kd5 e6 Qa5 Qb5+ Ke4 e7 Qf2 Q5b3 Qae5 e8N Qf1 Ng7 Qf2 Rg3+ f3 Nh5 Bg5 Qg8 Qfd4 Bf1 f2 Qc4 Qf4 Kh1 Qe5 Rg4+ Kf3 Re4 Qde3 Nc1 Q3f4 Bd3 Qd6 Ne2 Qde5 Neg3 f1Q+ Kh2 Qe2+ Kg1 Qed2 Ne2 Qde3+ Kf1 Qed2 Qbb4 Qde3 Rc1 a1B Qb1 Bb2 Na1 Qed2 Rc2 Bc1 Rb2 Qde3 Bc2 Qed3 Rb3 Be3 Ng7 Ba7 Rb4 Qa3 Ne7 Qdd2 Ng6 Bg1 Rb6 Qae3 Rd6 Qdc3 Rd3 Bf2 Nc1 Kg3 Ne2+ Kh2 Nh5 Qed2 Rf3 Qdd3 Qbb5 Be3 Qb1 Bd2 Kf2 Kh1 Nh8 Bc1 Ng6 Be3+
1b1nrq2/q1Rp1BR1/p5b1/2B1Q2r/k1p1KrB1/1NR1n2q/1B6/1B4Rr w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 d4 c6 d5 cxd5 c4 Bc5 Nd2 Bd6 c5 Bf8 Nc4 dxc4 Kd2 h5 e4 f5 g4 a6 b4 f3 Ke3 h3 c6 h4 b6 h2 b7 f2 e5 h3 g5 f4+ Ke4 f3 e6 Qe7 g6 Kd8 b5 Kc7 g7 Kb6 c7 Nh6 g8B Ra7 Ra3 Ng4 Bh7 Qc5 e7 Nc6 e8B Nd8 b8B Bb7+ Qd5 Ra8 c8R Ne3 Bf7 Bd6 Be2 f1Q Rc3 Ka5 b6 f2 Nf3 Ka4 Rg1 h1Q Rc7 h2 Ba7 Be5 Bf5 Rh5 Bb2 Qf8 Bd3 Qh3 Bb1 f1R Bg4 Bc6 b7 Rc8 Rg3 Qg1 b8R h1R Nd4 Rff5 Bc5 Qf2 Rbb7 Rb8 Rg1 Ra8 Rc8 Bb8 Rbc7 Bb7 Nb3 Bc6 Kd4 Bb7 Qe5 Bd5 Bg8 Bf7 Ke4 Bg6 Bf7 Nc2 Bb4 Qa7 Be7 Ne3 Bc5 Nc6 Re8 Nd8 Re7 Nb7 Rc6 Bc7 Bd5 Re8 Rg7 Nd8 Bf7 Bb8 Rc7 Rf4+
q6b/RbR3pB/pqRr4/K2Qp2Q/R4R2/N1N4b/bRn2b2/k2rq3 w - - 0 1 illegal: Other
4n3/1qB1r2N/2Q1B2R/n3N3/pBn2nBb/3b1K2/pNp2nN1/1nn1B1k1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 c5 exf4 c6 f3 Qb3 f4 Qc2 dxc6 Qb3 c5 Qd1 c4 b4 a5 Ra3 Ra6 Rd3 Rf6 Rd6 Rf5 gxf5 h6 Rg6 h5 Rg4 hxg4 Kf2 Ke7 e4 Kd6 h4 Ke5 h5 Kd4 e5 c5 b5 g5 e6 a3 b6 c3 b7 a4 e7 a2 e8B g3+ Ke1 g2 Kf2 g4 h6 c2 d3 c4 h7 g3+ Ke1 f2+ Ke2 c3 f6 Nc6 b8B Qc7 f7 Na5 Nd2 Ba6 Nh3 Nf6 Bd7 Qb7 Bc7 Ne8 Bg4 Be7 f8N Bh4 Nc4 Rg8 h8B+ Rg7 Nh7 Bb5 Ne5 Re7 Ba3 Ba6 Qe1 Bc4 Bb4 c1N+ Kd1 f3 Nf4 g1N Bfh3 f1N Ng2 f2 Bg7 Kd5 d4 Nd2 Nd3 f1N Nb2 Nge2 Bf8 Ke4 d5 Nb1 d6 Ba6 d7 Bd3 d8N Nfd2 Nc6 Ndc4 Ne5 Kd4 Rh2 Nf4 Qh1 c2+ Ke1 Bg6 Kf1 Bd3+ Kg1 Ke4 Be1 Kd4 Be6 Ke4 Bhf5+ Kd4 Bg4 Ke4 Ne3+ g2 Rh3 Kd4 Kh2 g1N Ng2 Rg7 Bfb4 Re7 Re3 Ngh3 Rg3 Nf2 Rh3 Bg5 Kg3 Ke4 Rh6 Kd4 Nh4 Ke3 Qc6 Bf6 Bgf5 Ke2 Ng2 Kf1 Bg4 Kg1 Kf3 Bh4
N2qN2N/2n2NKR/2k3p1/1q1r1rRp/R1q1n3/2bRp1r1/2n2B1Q/4q1R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 d4 g5 Kd2 gxh4 Ke1 c5 Ke2 cxd4 Ke1 d3 g4 d4 g5 Be6 g6 Bd7 g7 Nf6 Bh3 Bc6 Bf5 Bd5 exd5 Ng8 Bg6 fxg6 Kd2 Kd7 c4 h5 a4 b5 f4 e5 c5 e4 c6+ Kd6 c7 h3 c8N+ Kc5 a5 h2 f5 b3 d6 b2 a6 b4 a7 b3 f6 Qa5+ Nc3 b1R f7 b2 d7 Qb5 d8R Qe8 Nd5 Qa4 Nc7 Qc4 Nd6 Kc6 Qe2 Nf6 g8R Bg7 f8R Na6 Nce8 Nc7 Ra4 Rb8 a8N Rb5 Qg2 Rf5 Nf3 Rh7 Rf1 h1Q Qh2 Ra1 Rd7 b1Q Rg1 Ra3 Nf7 Qbb5 Nh8 Rc3 Ng5 Rd5 Ke1 d2+ Kf2 d1Q Ngf7 d3 Ke3 d2+ Kf4 Rg3 Bb2 Qe1 Bd4 d1N Bf2 Ne3 Re7 Nc2 Re5 Nd7 Rg5 Bc3 Rg7 Nc5 Rfg8 Qg2 Rf8 Qgf1 Rfg8 Qfd3 Rf8 Rd4 Ke5 e3 Kf6 Rd5+ Re5 Rh6 Rh7 Ne4+ Kg7 Qdd4 Nf6 Qdb6 Rd8 Qb8 Rd7 Qd8 Rg5 Rf5 Rd4 Rd5 Ne8 Rf5 Kg8 Rd5 Rd3 Rf5 Rg7 Rh7 Kf8 Rc5 Nh6 Rd5 Rd7 Rf7+ Kg8 Rf6 Rh7 Qbb8 Kg7 Qbb5 N6f7 Rff5+
3QQ3/Qrb1R1Np/b3Q1Q1/3K2R1/4rQrb/1B1r3N/1pbr1pk1/2n4q w - - 0 1 illegal: No possible last move, all moves rejected
nk1N1n2/1NR5/p3pNNp/1pK3R1/8/1B1N4/nr1b2Q1/rRqrn1bR w - - 0 1 illegal: No possible last move
1BNK4/p5Bb/1n2Q3/3r3r/Rrb2BQ1/B3r1p1/ppkNqB1B/b4n2 w - - 0 1 illegal: No proof kernel
3k2Bq/1K2p1r1/Npppp3/B2br1R1/QRrR1B2/1r4nB/3RBn2/3b4 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 c4 bxc4 b5 Nh6 e5 Ng8 e6 fxe6 b6 Bg7 Bd3 Bh6 Bf1 Bf8 d4 Bb7 Nc3 Nh6 Na4 Bc8 b7 Ng8 Nb6 axb6 d5 c6 Qe2 Bg7 Qd1 Bh6 Bd2 Bf4 Bc1 Bc7 d6 Ra6 dxc7 Ra8 Kd2 h5 Ke3 h3 g4 h2 a4 c3 f4 h4 a5 h3 a6 c2 g5 Ra7 f5 Rh7 f6 Rh8 f7+ Kf8 g6 Rh4 Rb1 Rh7 Nf3 Rh6 Ne5 Nf6 Kf4 Qe8 Rg1 h1R Bd2 c1R Qa4 h2 Rg5 Qd8 Ba5 Rh3 Nd3 Ne8 Nb4 Rhc3 Bh3 Ra8 a7 Rg3 Na6 Nf6 Rb4 Rhg1 Rd4 h1B Rb4 Kg7 f8R Ne4 Re8 Kf6 g7 Rb3 g8B Ng3 Rd4 Rc4 Kg4 Nf5+ Kh5 Bd5 Rd2 Ke5 Kg6 Kd6 Rf8 Ng3 Rf4 Re1 Kf7 Re5 Rfd4 Qe8+ Kg7 Qh5 Kf8 Qh4 Ke8 Qh8 Nc5 Na6 Kd8 Rb8 a8R Nb4 Na6 Nd3 Ra7 Ra8 b8B Bb7 Nb4 Nf2 c8B+ Kc5 Kc7 Ba6 Qa3 Bb5 Kb7 Ba4 Ra6 Ree3 Bf4 Re5 Qa2 Kd6 Qa3 Rb1 Qa2 Bd1 Qa4 Rb2 Ra7 Rb3 Na6 Rb5 Nc7 Ne2 Bf7 Rb3 Qa1 Qg7 Bc3 Rbb4 Ra4 Rb3 Ba5 Qh8 Rb4 Rc5 Qa4 Rb8+ Ka7 Ng3 Ba6 Rg8 Bd3 Rg7 Na6 Rcc3 Be2 Rc4 Nb8 Kc7 Bg8 d6 Na6+ Kd7 Kb7 Kd8
1nk3B1/q1r2pBR/pr2r3/1pB3QB/2p5/1Qn4r/2K1RBp1/1nB1N1b1 w - - 0 1 legal: proof: b4 d5 g4 e5 a4 h5 c4 hxg4 f4 exf4 a5 b6 a6 Bb7 Na3 c5 axb7 cxb4 c5 Qf6 Nc4 dxc4 Ra2 Qg5 Ra1 Qd8 h4 Kd7 d4 g5 Kd2 f3 e4 f2 c6+ Kc7 d5 a6 h5 g3 e5 b5 h6 g4 e6 b3 e7 g2 e8Q b2 h7 b1R d6+ Kb6 c7 g3 c8B Ne7 d7 Kc7 Qb3 Nec6 Be2 f1N+ Kc2 Qe7 Bh5 Qe3 Ra2 Ra7 Qe7 Nd2 Qg5 Bc5 Nf3 g1R Ne1 Ne7 Rh2 Re8 h8B Nd5 Bg7 Nc3 Rh3 Re6 d8B+ Kc6 Be7 Kc7 Rh1 g2 Rh2 Rb6 Bf5 Rh1 Bh7 Qf2 Rh4 Rh3 Bg8 Bd4 Bc5 Ra1 Be2 Ndb1 Rh7 Qe3 Bd1 Qe7 Be2 Bg1 Rb2 Ra3 Bh5 Re3 Ra2 Ree6 Bf2 Nd7 b8B+ Kc8 Bd6 Nb8 Bdc5 Rc7 Qa4 Nd5 Rb2 Rh3 Qb3 Qd7 Kd1 Qe7 Re2 Ndc3+ Kc2 Rcc6 Rh6 Qa7 Rh7 Rc7
2R5/p1n1NNp1/B2Np2b/Nb2p3/1N1BbB1k/3pnr2/3K2nq/1b1Q1B2 w - - 0 1 illegal: No proof kernel
1b1B1Rn1/b5NN/8/NNk1q1q1/3R1N2/2Kb1n1r/Nrr4n/BR2b1bn w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 f5 Nh6 Bc4 Ng8 Qf3 h6 Qf4 gxf4 g5 h5 Be2 Bb7 Bd1 Bc8 Bg4 hxg4 Kd2 d5 h4 Kd7 b4 Kd6 c4 a5 g6 e5 h5 f3 f6 e3+ Kd3 g3 h6 g2 f7 a4 b6 e4+ Kc2 f2 g7 f1N b5 e2 h7 e1B b7 d3+ Kb2 d2 b6 d1N+ Kc2 d4 Rh4 a3 Nh3 g1B Bg5 a2 Nc3 e3 Rb1 a1B Na2 e2 Nf4 Nd7 b8R Kc5 b7 Bd6 f8N d3+ Kb3 Qa5 Bd8 d2 Rg4 Bad4 N8e6+ Kc6 c5 Nh2 Kc4 Ne5+ Kb3 Kb5 c6 Ba7 c7 Nf2 Rh4 Bd7 c8N d1R Kb2 Bc7 Nd6+ Kb6 Rg4 Nh1 Nb5 Nef3 Rc8 Rd4 b8N Rd2+ Kb3 Be8 Nc6 Rb8 Kc4 Bg6 Rh4 Nf6 g8N Bd3+ Kb3 Rb7 Ng7 Kc5 Ra8 Bcb8 Rg4 Nd5 Nf6 Ne7 Rh4 Ng8 Rg4 Qc7 Na5 Qe7 Kc3 Qe3 Ng6 Qg5 Rd4 Bef2 Nf4 e1Q Nd6 Rbb2 Nb5 Qe6 Be7+ Bd6 Rf8 Be1 Bd8 Bdb8 Rd1 Ne7 Rb1 Qee5 Rf7 Rf8 h8B Ng8 Nh7 Re8 Rf6 Re6 Rf7 Rh6 Rf8 Rh3 Ngh5 Qe8 Re4 Rbc2+ Kb3 Rh4 Ba1 Rb2+ Kc3 Qee5+ Rd4 Rh3 Ng7 Rdc2+
k2K4/3NBN2/b6n/1B1n1q1p/3b2N1/b3B1bb/pn3NBb/b2Q2QR w - - 0 1 legal: proof: d4 f5 a4 c5 a5 cxd4 a6 bxa6 Nf3 a5 Ng1 a4 b4 Na6 e4 fxe4 g4 Nb8 c4 Nf6 f4 Ng8 Ra3 Bb7 Rh3 Bc8 Rc3 dxc3 h4 h5 f5 a5 g5 Ra6 Qd4 Rf6 gxf6 g5 Qd5 g4 Qd1 Rh6 Qd5 Rg6 Qd1 Rg5 hxg5 Qb6 Qf3 Qc7 Qd1 Qd8 Kf2 e5 Ke3 d5 f7+ Kd7 c5 Kc6 g6 Kb7 b5 d4+ Ke2 d3+ Ke3 a3 c6+ Ka8 c7 d2 f6 c2 g7 a4 b6 a2 Qe2 a1B Na3 d1B Qh2 g3 Bb5 g2 Nc4 a3 Nd6 a2 Nh3 g1B+ Nf2 Ba6 c8B Nh6 g8N Bg7 f8B Nc6 f7 Qd7 Be7 Qf5 f8Q Nb4 Nf7 Bg4 Nf6 Bh3 Ng4 Bf6 Qg2 Bh2 Qd8 Bh8 Bd2 c1B Qg1 Ba3 Bc1 Bf6 Qdd1 Bg7 Bcd7 Bf6 Bf1 Bg7 Bdb5 Nd5+ Kd2 Bd4 Bg2 e3+ Ke2 e4 b7+ Ka7 b8N Ka8 Nd7 Ba1 Ke1 e2 Be3 Bgd4 Kd2 e1N Ke2 Nd3 Kd2 Bc1+ Kc2 Bcb2 Kb3 Ba3 Ka4 Nb2+ Ka5 Bb7 Bd2 e3 Bc1 e2 Be3 e1B+ Bb4 Nc3 Be7 Bde5 Kb6 Bg7 Nd6 Bd4+ Kc7 Nd5+ Kd8 Bc8 Nf7 Ba6 Ne4 Bh4 Nef2 B4g3
b2B4/3qQ3/kBrBnNK1/pR2p3/BQ2bn1N/7r/1p1Nb2r/1rN5 w - - 0 1 illegal: No possible last move
rb2N3/r1r4Q/3R2qb/R1bnQ1r1/Nr2q2k/RNnNq1b1/2R4B/3K4 w - - 0 1 legal: proof: d4 c5 g4 cxd4 f4 h5 e4 hxg4 f5 b6 Bc4 a5 b4 axb4 Be6 fxe6 Na3 e5 Nb1 Bb7 f6 Bd5 Nc3 Be6 Nb1 Bf5 exf5 e4 a4 Kf7 h4 g5 c4 d5 c5 e5 c6 b5 a5 g3 a6 b3 c7 b4 c8R e3 a7 g4 h5 g2 h6 e2 h7 b2 Rc3 g3 Rf3 e4 Qa4 d3 Rf4 b3 Qc6 d4 Rfh4 Qe8 Kd2 e1B+ Kd1 d2 Qb6 e3 Qa5 Na6 Nc3 b1R Nge2 g1R Nf4 g2 Nfd5 b2 Qc5 e2+ Kc2 d1R Nb5 Ne7 R4h3 Nc7 Rha3 Bg3 Nbc3 e1B Bf4 Nb5 Nb4 Bh6 Qe5 Nd5 Na4 Nbc3 Nd3 Rg8 h8R Rg7 Rh2 Qe6 Rd8 Rdc1+ Kb3 Rg5 Rd6 Rf1 R1a2 g1B Rc2 B3h2 Ra1 Beg3 R1a2 Qe8 Ra1 Qg8 R1a2 Qg6 Ra1 Kg8 f7+ Kh7 f6 Qe4 f8Q Kg6 f7+ Kh5 Qfe7 Kh4 f8N B1f2 Ndc5 d3 Qh7 d2 Nfd7 d1Q Nd3 Qde1 N7c5 Q1e3 R1a2 Rh8 a8N Qg6 Nc7 Ra8 Ne8 Ra1 Kc4 b1Q Nb3 Ra7 Nd4 Qb7 Nb3 Rcb1 Nab2 Rfc1 Ra5 Qe7 Na4 Qee6 Ra3 Qef5 Nd2 Rbb7 Nb3 Qfe4+ Nd4 Rc7+ Kb3 Bfg1 Kb2 Rd1 Nb3 Rd2 Ndc1 Rd4 Nd3 B1f2 Rc1 Rb4 Kc2 Q3f3 Kd2 Bc5 Rc2 Ra2 Kc1 Qfe3+ Nd2 Bf2 Qee7 Rab7 Rb6 Qe2 Nb3 Kh3 Ra7 Qf7 Nab2 Rc6 R3a4 Qfg6 R7a6 Kh4 Rb5 Bd6 Qe5 Bb8 Rbb6 Rcc4 Rd6 Rcc7 Ra7 Bhg1 Bh2 Bg3 R4a6 Bc5 Ra8 Ra5 R8a7 Rab5 Ra3 Ra5 Na4 Ra6 Rb2 Q2e3+ Kc2 Rab6 Ra5 Ra6 Rba2 Ra8 Rb2 Nb5 Kd1 Rba7 Rc2 Nbc3+
1Bn2bkq/5q2/K1nrnB1B/NQR1r1b1/BRR1Q3/1Rn5/q1r4b/6q1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h5 Qd2 b6 Nc4 f4 Ne5 Bb7 Qd3 Be4 Qd1 Bf5 gxf5 Ne7 Ng4 hxg4 Bg2 Ng8 Bh3 Bd6 Bf1 Bf8 Kd2 Kf7 Kd3 g5 Kc4 d5+ Kb5 f2 h4 d3 c4 f3 e4 d4 a4 g3 e5 g4 h5 b3 c5 g2 f6 g3 a5 d2 h6 d3 h7 b2 c6 b1N a6 Ne7 c7 Nc8 a7 Na3+ Ka4 b5+ Ka5 b4 Qc2 d1R Qe2 d2 Rh3 b3 Rb1 b2 Qe4 Nb5 Ne2 g1B Nd4 g2 Nb3 Nc6+ Ka6 Bh2 Na5 Nbd4 Bb5 g1B Ba4 Ne6 Rg3 Rb8 a8R Rb5 Ra7 Rg8 h8B f1Q Bg7 f2 Rb3 Bf4 Rb7 Rd5+ R7b5 Bg5 Bh6 Qe1 Rc5 f1Q+ Rc4 Rg7 Rb4 Kg8 f7+ Kh8 Rb3 Bh2 Rb4 Rg6 Bg7+ Kh7 Bf6 Qf3 Rb3 Qg1 Rc5 Re1 Rc4 d1Q Bf4 Qc2 Rc5 Rd2 Bg3 Bd6 f8B Kg8 Bh6 Bf8 Rb4 Qcb3 Bf4 Rc2 Bg3 Nd6 c8R Qa2 Rc7 Nc8 Rb3 Ned4 e6 Qe8 e7 Ne6 Bf4 Qh3 Rb4 Qf7 e8Q Ree2 Qd7 Qc3 Qdd3 Qcd4 Qb5 Re3 Rc1 b1N Rb7 Nc3 Bb8 Ree2 Rc7 Re3 Rcb1 Re1 R1b3 Qe5 Bd8 Qh8 Bf6 Re3 Qg2 Re5 Rcc4 Ncd4 R7c5 Nc6 Qe4 Ned4 Bd8 Rd6 Bf6 Ne6
kqBb4/r1n1r1bR/2RQ1b2/4n2R/r1bnB3/n1B1r3/N2KQ1R1/1rB5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 c4 a5 e4 g5 h4 f5 b4 d5 c5 Kd7 b6 Kc6 b7 g4 e5 d3 e6 f4 e7 d4 e8Q+ Nd7 b8B Kb7 h5 a4 b5 d2+ Ke2 a3 b6 a2 h6 f3+ Kd3 f2 h7 Ne7 Qc2 d1N Be3 Nd5 Qe4 Ra7 c6+ Ka8 c7 Nc3 Qe7 Ne5+ Kd2 d3 Nh3 g1R Be2 f1R Bd4 g2 Be3 g3 Bg5 Be6 c8B Re1 Bf3 Re3 Bg4 Bg7 Qd7 Re8 h8R Nb5 Nf2 Rb1 Bf5 g1N Qd6 g2 R1h5 Na3 Ne4 Ne2 R8h7 g1B Nc3 Nd4 Be4 Ree7 Bf6 Rb4 Rc1 a1B Na2 Rba4 Qb2 Bf2 Rc6 Bh4 Qc2 Qf8 Qd1 Qd8 Qe2 Qc7 Bg5 Qb7 Bc7 Qb8 Bd8 Nc7 Bf4 Rd7 Bf6 Bc4 Bh6 Nf7 Be5 Bd8 Bhf4 Re7 Bh6 Nf5 Bc3 Nd4 Bg5 Ne5 Bh6 R7a6 b7+ Ka7 Qg2 Re2+ Kc1 d2+ Kd1 Nf7 Rf5 Qa8 b8R Ndc2 Rb2 Qb8 Bg5 Ka8 Bd4 Ra7 Bdf6 Re3 Bf4 Rh3 Rfh5 Rd3 Ke2 d1R Qf2 Rb1 Bc1 Rf3+ Kd1 Re3 Qe1 Nb4 Rg2 Nbc2 Kd2 Bd4 Qe2 Bb2 Bc3 Ba1 Bb4 Baf6 Ba5 Ne5 Bc3 Nd4
K1QR1B1b/1q1n1RQb/3Q4/4q3/R1q2QRb/1k4Nq/1qbn1N1r/2b4q w - - 0 1 illegal: No possible last move, all moves rejected
2N2Bk1/brB2r2/3nq3/q1QQrnr1/5rn1/1B1q1NN1/3N1nK1/r5BR w - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 d4 cxd4 f5 b6 f6 exf6 Bg5 f5 Nd2 f4 Nb1 f5 Bh6 f3 Bc1 f4 a4 Bb7 Ra3 h6 Rc3 Be4 Rc5 h5 Rg5 Bf5 gxf5 Nc6 Rg3 Nb8 Rg4 hxg4 Kf2 Kf7 h4 g5 e4 d5 c4 b3 h5 g3+ Ke1 d3 f6 g4 a5 f2+ Kd2 b2 a6 b5 a7 b4 c5 b3 e5 g2 h6 f3 Ke3 d4+ Kf4 d2 Kg3 d3 c6 Na6 h7 Nc5 c7 Ne4+ Kh2 g3+ Kh3 Bc5 c8Q Nd6 Qb7+ Ne7 Qc7 Re8 h8B Kg8 e6 Nef5 Nc3 b1Q e7 b2 Qc6 Qa5 Qc2 d1N Bf4 d2 Bd3 f1R Nce2 f2 Nf3 g1R Qe4 g2 Ng3 Rab8 a8N Qba2 Nb6 b1Q Nc8 Ba7 Qc5 Qe6 Qed5 Nde3 Bc2 d1N Bb3 Rb7 Bg7 Ng4 f7+ Kh7 f8B Qd3 Bd4 Kg8 Rh2 Rh1 Bfe5 g1R Be3 Rd8 e8N Rdd7 B5f4 Rf7 Bd4 Re1 Nf6+ Kh8 Bfe5 f1R Nfe4+ Kg8 Ned2 Rg2 Bf4 Re5 Bde3 Rff2 Bd4 Rhe1 Rh1 Rff1 Bg1 R1e4 Bg5 Ra4 Bd8 Ra1 Bc7 Rff2 Nd4 Rf4 N4f3 Nge3 Ne2 Rg5 Ng3 Ng4 Kg2 Ndf2
2Q1R1q1/nbN2rB1/4r1k1/r1qr4/Q3b1b1/qN1R1QNQ/p1NK4/4n1n1 w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 Be3 f3 Bg5 Be7 Bc1 Bf8 Na3 h5 Qd3 f5 Nb1 f2+ Kd2 f4 Bh3 f3 Be6 Bd6 Bg4 Bf4+ gxf4 hxg4 Qh7 Qc7 Qh3 Qb6 Qf1 Qc7 Qd1 Qd8 h4 Kf7 e4 f1B b4 d5 c4 a5 e5 g5 f5 a3 f6 g3 b5 g2 c5 d3 b6 a4 h5 d4 b7 g4 c6 g3 c7 a2 h6 f2 h7 a3 e6+ Kg6 f7 Na6 b8N Nc5 f8Q Ne7 Qc2 Nc6 e7 Ra5 e8N Na7 Qb2 Bb7 Kd1 d2 c8Q Nd3 Qbb4 Ne1 Na6 Bd3 Nec7 f1R Qb5 Bde4 Nb4 Rf7 Ne2 g1N Nc2 g2 Ng3 Qg5 Rh2 Qc5 Qa4 Rg8 Rh3 Rh8 Qe7 Re8 Qf8 Re6 h8Q Re8 Nc3 Re6 Rb1 a1Q Bb2 Qa2 Nce2 Qb3 Ba1 a2 Nc1 Qba3 Rb3 Ngf3 Re3 g1Q Ke2 d1R Nb3 Rd3 Rh5 Rd1 Rd5 Rd3 Qh3 Rd1 Nf5 Qg4 Ng3 d3+ Kf1 d2 Ke2 Qg5 Bg7 Qd8 Rdd3 Qe8 Qd6 Qg8 Qf4 Ng1+ Kf1 Rb1 Qf3 d1B Re2 Qcb4 Kf2 Rd5 Ke3 Qc5+ Kd2 Rb2 Nd4 Rb5 Nb3 Ra5 Na8 Bf5 Re5 Be4 Nc7 Red6 Re8 Re6 Qfh1 Bh5 Qf3 Bg4
q1NB2k1/1n2Q3/1nQ1p2Q/KB6/2Nq3N/6bb/n1r1bb1R/QbN2rb1 w - - 0 1 illegal: No possible last move
R2qQn2/2qn4/QbR1p3/b4N2/1n1RRqk1/3Q1r2/q2q1Bn1/1Qr2K1B w - - 0 1 legal: proof: d4 c5 g4 cxd4 f4 h5 e4 hxg4 f5 b6 Nd2 a5 b4 axb4 Ndf3 Ba6 Ng5 Bd3 Ne6 fxe6 f6 e5 Ne2 Bc4 Ng1 Be6 Rb1 Bf5 exf5 e4 Ra1 Ra5 Bh3 Ra3 Bf1 Ra8 a4 Kf7 c4 d5 h4 g5 a5 e3 h5 b3 h6 e6 a6 d3 c5 b2 h7 b1Q a7 d2+ Ke2 g3 c6 d4 c7 g2 c8Q d3+ Kf3 g4+ Kg3 e2 Kf2 e1N Rh3 g3+ Ke3 b5 Rh5 b4 Ne2 g1B+ Ke4 b3 Nc3 b2 Ne2 g2 Ra5 Bb6 Rc5 g1Q Rh4 Qg3 Qb7+ Nd7 Nd4 Nc2 Bg2 Nb4 Rc6 Ne7 Bh1 Ng6 Qa6 Qgc7 Kf3 Qa2 Kg2 b1Q Re4 Rc8 a8R Qbb2 Qf3 d1N+ Kf1 Qbh2 Be3 d2 Bf2 Qhf4 Qfd3 Bd6 Qb1 Rf8 h8Q Be7 Qh3 Ne3+ Kg1 Ng2 Kf1 Bec5 Qha3 Ba5 Q3d3 Ke8 f7+ Ke7 Qf3 Kf6 Qfd3 Kg5 f6 Bcb6 Nf5 Kg4 Rd4 Rh8 f8R Rh3 f7 Rf3 Rh8 Ngf8 Re4 Ne1 Rh7 d1Q Rh4+ Kg5 Rd4 Qdd2 Re4 Ng2 Rd4 Qh2 Rhe4 Qcf4 Qdc2 Kg4 Qcd3 Ng6 f8Q Qg3 Qe8 Ngf8 Rcd6 Rc3 Rc6 Qh2 Qd1 Rc1 Qe1 Qh8 Qd1 Qe5 Qe1 Qec7 Qd1 Rc2 Qb1 Rc1+
b2bb3/Q5r1/1nq5/4BRBN/nq2Q1r1/Nr2B1pK/B4r2/bN2nNk1 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 h4 Ke7 Nf3 Rh7 e4 Kf6 c4 g1N h5 g2 Kf2 d5 Kg3 g5 h6 a5 e5+ Kf5 b6 Ke4 e6 f5 c5 g4 b5 d3 e7 d2 e8N Ke3 b7 a4 b6 f4+ Kh2 Kf2 c6 a3 c7 d4 Ng7 d3 Ne6 a2 Ng7 a1B Ng5 f3 Bb2 Ra3 Qc2 Na6 b8B Bd7 c8N Qc7+ Nd6 Nc5 b7 Be8 Nf7 Na4 Qc3 d1B Qb4 d2 Bf6 Be7 Ne5 Bd8 Nb5 Ne7 Bc4 Nc8 Nh5 Rg7 h7 Ncb6 Ba2 Rb3 N5a3 Be2 Be7 d1Q Bg5 Qdd6 Qf4 B2b5 Nec4 Bbc6 Ncd2 Qb4 Qe5 Qd7 Qe4 Bd5 Be5 Qdd6 b8Q Ba8 Ndc4 Qc6 Qa7 Kf1 Be3 f2 Kg3 Rg8 Rh2 Nf3 h8B Ne1 Bhf6 Rg7 Bg5 g1R+ Kh4 Rg3 Ncd2+ Kg1 Rh3 Rg2 Rf3 Rg3 Rf5 Rg2 B3f4 f1R Be3+ Rff2 Nf1 Rg3 Qa5 Rf3 Qa7 g3 Kg4 Rf4+ Kh3 Rg4
2nB1r1b/3R1rr1/2qbnpQ1/1B5Q/7R/1bNqBrq1/1k2K3/R2b1RB1 w - - 0 1 illegal: No possible last move
3b1Bk1/2QNBp2/4r2Q/1qBn3b/N3p2r/b3n1b1/Bn1n4/QQK1n1R1 w - - 0 1 legal: proof: a4 a5 f4 g5 b4 axb4 c4 h6 e4 Ra6 g4 Ra5 c5 Ra6 d4 Ra8 c6 dxc6 d5 Be6 d6 Bd5 exd5 gxf4 g5 h5 Ra3 Nd7 Rg3 Nb8 Rg4 hxg4 Kd2 e5 h4 b5 a5 f3 g6 b3 a6 f2 g7 g3 h5 g2 h6 b4 h7 c5 a7 b2 Qc2 b3 Qg6 c4 Qf5 c5 Qh5 c3+ Kd1 c4 Nd2 b1N Qg4 c2+ Ke2 c3 Ke3 b2 Qd4 Be7 Qb6 Qd7 Ne4 Nd2 Nf3 g1B Nc5 b1B Qc7 Bh2 Na4 Na6 Rg1 Qb5 Ba3 c1N Bc4 c2 Bc5 Bd8 Ba2 Nd3 Ke2 c1B Kd1 e4 Ne5 Ba3 Nd7 Nb2+ Kc1 Rb8 a8Q f1N Qaa7 Rb6 Qab7 Ne7 Qbc6 Rf8 g8Q Bg3 h8Q Bd3 Qg5 Ne3 Qgh6 Be2 Q6b7 Bh5 Q8g7 Nbd1+ Qb2 Rh8 Qbb8 Bb4 Qa1 Nb2 Rd1 Rg8 Qc6 Qa5 Qg6 Nbc4 Ne5+ Kf8 d7 Bg4 Rg1 Bh5 Qcc7 Re6 Qh6+ Rg7 Qbb7 Kg8 Qbb6 Rg4 d6 N7d5 Qb5 Bg5 d8B Rh4 d7 Ba3+ Qbb2 Qb5 Qb1 Bb4 Q2a1 Nb2 Bf6 Ba3 d8B Nab4 Nd7 Nbc2 Bg7 Ne1 Bgf8 B5f4 Bg5 Bd6 Bf6 Be7 Bg5 Bd8 Bf6 Nc3 B6e7 Ncd5
4q2k/Qr3bpN/q5rr/qnR3Q1/nR4R1/1rR1BN1Q/7p/2KQ2bq w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 g4 h5 f4 hxg4 Bh3 b5 axb5 exf4 Kf1 gxh3 Kf2 Nh6 Ke1 Ng8 Kd2 a5 b4 f5 e4 Kf7 c4 d5 h5 d3 b6 d4 b5 a4 e5 a3 h6 f3 c5 h2 c6 f4 b7 f2 b6 f1Q c7 f3 h7 f2 Qg4 a2 Qf4+ Nf6 Qe3 Nd5 Nf3 Nd7 b8Q Ra3 b7 N7b6 Qh6 Qe8 Qg5 Be6 c8Q Na4 Qc2 Ndc3 Qb3 Nb5 Qa7 Bc5 Qd1 Rb3 b8R+ Kf8 Rb6 Bf7 e6 Qg1 Nc3 f1Q Rb1 a1Q Rc6 Qa3 Rb2 Qb4 Rc2 Qa5 Rc8 Bb6 Rc4 Bc5 Rb4 Bb6 Ne4 Bc5 Qe1 Bb6 Kd1 d2 Rc3 Qgg2 Rg1 Qh1 Kc2 d1R Be3 Rdb1 Nf6 d3+ Kd2 R1b2+ Kc1 Bd4 Rg4 d2+ Kd1 Rb1+ Kc2 d1R Qd2 Re1 Qd1 R1b2+ Kc1 Qe2 Rc5 Rg1 Rc3 Nd6 Rc5 Qea6 Rc3 Nb5 Rc5 Rg8 h8Q Rgg2 Qhh4 Rh8 Qh3 Rh6 Nh7+ Kg8 e7 Kh8 Rc3 Qg8 e8R Bb6 Bf4 Bg1 Re5 Qe8 Be3 Rg3 Rge4 Rg4 Rec5 Rgg2 Qf6 Rgg6 Rg4 Rd2 Qf4 Rd7 Qg5 Rb7
Q1K1BQr1/3p1Q2/1BNrRn2/1b1nn2q/2B3Rq/1r1QnBp1/5k2/br6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 g5 h5 a5 h6 f5 b6 d3 Kb5 a4 c4 g4 b7 f4 c5 f3 c6 d2 c7 Ke3 Kb6 f2 b5 a3 h7 a2 Rh4 Nc6 b8Q Qg5 Nf3 g1N Nd4 Ra4 Qa8 Ne5 Nc6 Bb7 c8B g2 Kc7 g3 b6 Ba6 b7 Nh3 b8Q g1R Rg4 Ra3 Bb7 Qh5 Qe8 Nf4 Qf7 Nd5+ Kc8 Bg7 Rb1 a1Q Rb6 Qd4 Bb2 Qf4 Bd4+ Ke4 e3 Bb5 Bc4 f1N Qb1+ Kf3 e4 d1R Qd3+ Kg2 Ra6 Rb3 Bb6 Nf3 e5 Nfe3 e6 Ba1 e7 Ngf6+ e8B Rg8 h8Q Ne5 Qh6 Kf2 Qhf8 Qfg5 Nb8 Qgh4 Bc6 Nc3 Bf3 Ncd5 Nc6 Rh1 Nd8 Rd2 Nc6 Rhb1 Ra2 Nb4 Qdd5 Ng6 Ra5 Ba4 Qe4 Rd6 Re5 Bb5 Re6 Nbd5 Qd3 Ne5
b3N1RR/3Rn2p/1BNq2r1/qbqR4/p3N3/Q5rN/1Kn1p1kr/Qq6 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 fxe6 f5 e5 Be3 e4 Bg5 Qc7 Bc1 Qd8 h4 Nf6 g4 Kf7 g5 Ne8 Bh3 Nf6 Bg4 Ng8 f6 Ke8 Bf5 gxf5 g6 Bh6 Rh2 Qb6 Rh1 Bg5 hxg5 Qd8 Kd2 d5 b4 Kd7 c4 Ke6 Kc2 Ke5 g7 a5 c5 f4 b5 f3 f7 e3 f8N Ke4 g6 e5 b6 f2 b7 f1B c6 e2 c7 e1R Bg5 d3+ Kb2 d2 Bh6 a3+ Ka2 a4 Rh3 d4 Ne2 d3 Qc1 d1Q Qc3 d2 Qa5 Na6 b8N Bb7 c8Q Ne7 g8R Qc1 g7 d1Q Ng1 Q1d6 Qcc5 Bb5 Qac3 Qa5 Nfd7 Re2+ Bd2 Ra7 Nc6 Ba8 Rh5 Rh2 Nh3 Rb7 Rc8 Rb6 g8R Qc2+ Qb2 Kf3 Be3 e4 Nc3 Qf2 Kb1 Nb4 Nf6 Nc2 Ne8 a2+ Kc1 Ra6 Rd5 Rb6 Rb1 a1Q Qca3 Ra6 Bd4 e3 Bb6 e2 Rb8 Qa2 Qa1 Qfc5 Ne4+ Qb3 Rd8 Qd3 Rd7 Qb3 Rg7 Rg8 Rg6 Qd3 Kb2 Rg7 Rbg1 Rg8 Re6 Rg5 Rg6 Rg3 Rf1+ Kg2 Rg8 Qd1 Rff8 Qf1 Rh8 Nf5 Ne5 Qh6 Ba7 Ne7 Rfg8 Rd6 Bb6 Qhf4 Rg7 Rdg6 Nc6 Qfd6 Rgg8 Qb1+
1r2qnN1/bQ2n2p/1qb5/2r4p/Nr1kBN1Q/4b1R1/2r2p2/2QNRKQ1 w - - 0 1 legal: proof: c4 c5 a4 e5 h4 b5 f4 exf4 h5 g6 d3 gxh5 Bd2 Qc7 axb5 Qd8 d4 cxd4 Bc3 dxc3 e4 Ke7 b4 Ke6 g4 Ke5 c5 a5 c6 d5 c7 f5 g5 c2 g6 c1R g7 a4 b6 a3 b5 d4 b7 a2 b6 f3 Bh3 f2+ Kf1 d3 Ne2 d2 Nf4 Nd7 b8Q Ra4 b7 Kd4 e5 Bc5 e6 Rb4 e7 Nf8 e8Q Ne7 g8N Bd7 c8Q Rc2 Bg2 Bc6 Rg1 Ba7 Be4 Qb6 Rg3 Rc5 Qe1 d1Q Nc3 Qa4 Nd1 Rc2 Rc1 a1B Qg6 Bb2 Rb1 Bc1 Qg5 Bd2 Qh4 Be3 Qbc7 Rc5 b8N Rc2 Na6 Rc5 Ng6 f4 Q8b7 Rc2 Nc5 Qab5+ Kg2 f1R+ Qf2 Rh1 Na4 Rc5 Rc1 Rh2+ Kg1 f3 Nf4 Qc4 Rb1 Qf7 Kf1 Qe8 Qg1 Re2 Rb2 Rg2 Re2 Rh2 Re1 Rhc2 Qcc8 f2 Qe6 Qa5 Qa2 Qc7 Qb1 Qb6 Qc1 Qb8 Ng2 Nd7 Nh6 Rd8 Ng8 Nf8 Nf4 Qc8 Bd3 Qd7 Bf5 Qe8 Be4 Rb8
Nq1QN3/1R2BB2/r5bp/1B2rrp1/q1NN3Q/3rbB2/2p2br1/k1K3n1 w - - 0 1 legal: proof: g4 a5 a4 d5 c4 f5 d4 g5 b4 axb4 h4 Nc6 h5 dxc4 d5 Na7 Ra3 Nc6 Rd3 Ne5 Rd2 fxg4 Rd4 Ng6 hxg6 e5 Bd2 exd4 Be3 Qd7 Bc1 Qd8 Kd2 Kd7 e4 Kd6 f4 Kc5 g7 b5 e5 b3 a5 Kb4 d6 c5 a6 d3 f5 h6 d7 b2 e6 c3+ Ke1 d2+ Ke2 c4 e7 c2 e8Q Kb3 a7 Ka2 f6 b4 f7 c3 Qe6+ b3 Qe8 g3 Qe5 g2 Qe6 Bc5 f8N Qe8 d8N Ka1 Qe7 Bf5 Qe4 Qa4 Na3 b1Q Qf4 b2 Nc4 Ne7 g8B Nc6 Nf3 g1R Nf7 Ne5 Ne6 Bg6 Nfd6 Bf2 Qh4 Rg2 Nfd4 Nf3 Bf7 Rhf8 Rh3 Rae8 a8B Re7 Be4 Ng1+ Kd3 Ree8 Nc7 Re5 Re3 Ra8 Nde8 Ra6 Na8 Rf5 Bf3 Re5+ Re4 Rf5 Qe2 d1R+ Qd2 Re1 Qd1 Re2 Re7 Ree5 Bd2 c1B+ Qc2 Qa5 Rb7 Qa4 Bf4 Bce3 Bg3 Qd1+ Qd2 c2 Kc3 b1R Qd3 Re7 Bd6 Ree5 Be7 Rb4 Qd2 Qb1 Kd3 Rbb5 Qa5 Qb2 Qd8 Rbd5 Ncd6 Bh7 Rb5 Rc5 Nc6 Bd4 Kd2 Rcd5 Rb4 Qbb3 Kc1 Bg6 Rb8 Qb6 Bb5 Qc7 Rb6 Qb8 Rb7 Bb6 Nc4 Rd2 Ne3 Ba7 Nc4 Bae3 Nd4 Rd3+
Q3NB1r/2nQ1K1Q/2pB2R1/3n1Q1r/B1krB3/q2r1rpp/5b2/r2R3r w - - 0 1 legal: proof: d4 a5 c4 d5 g4 dxc4 b4 axb4 g5 e5 g6 fxg6 d5 g5 Qd3 g4 Qd2 Qe7 Qd1 Qd8 h3 g5 Rh2 g3 Nc3 g4 Nb5 g2 Nd4 g3 Rh1 Bg4 hxg4 exd4 Kd2 Kd7 f4 Kd6 e4 Kc5 a4 h5 d6 b5 d7 b3 a5 d3 Ke3 c3 f5 h4 Kf4 b4 Ke5 c2 Ke6 d2 f6 b2 a6 b1R a7 h3 f7 b3 g5 b2 g6 Nf6 e5 Rh7 g7 Ne4 g8Q Rg7 Qh5 d1R Qgh7 Nc3 Ne2 g1R Bf4 c1R Bg2 Nd5 Q5f5 Rg5 Nd4 Rgf1 Ra6 Ra1 Be4 b1R Nb5 Rc3 Nd6 Rcd3 Ne8 Kc4 Rg1 Bb4 f8B Be1 Kf7 Rh5 e6 Rff3 e7 Bf2 Rg6 Na6 Bd6 Rd4 Rh1 R1d3 Rd1 Qb8 d8Q Qb2 Qd7 Qa3 Rd2 Rc8 a8Q Rh1 Rd1 Rb8 Ng7 Rc8 e8B Rd8 Qe6 Rc8 Ba4 c6 Qd7 Re8 Bfe7 Rg8 Bf8 Rh8 Ne8 Nac7
1Q3n1Q/3q3B/kB2RB2/8/BqNnpN1p/b1q2b2/1p1n2NK/1N2rb1q w - - 0 1 illegal: No possible last move
5bRB/7q/1Q2b1qk/3Bpr2/pR2B3/1n1bK1pb/Qr3QqB/Q4r1N w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 f4 hxg4 e4 b5 f5 bxa4 Nd2 Na6 Ndf3 Nb4 Ng5 Nd5 Ne6 fxe6 e5 Ndf6 exf6 e5 Qd3 e4 Qd2 Rh5 Qd1 Rh8 Kf2 Kf7 b4 a5 c4 d5 h4 e5 c5 g5 h5 a3 h6 a4 h7 d3 b5 e3+ Kg2 e2 Kf2 e1Q+ Kg2 a2 c6 g3 Kf3 d2 b6 d4 c7 g2 b7 d3 b8Q Qd6 Rh4 Be6 c8B Ne7 Rf4 Nc6 Qb6 Rb8 Rb4 Na5 Ne2 g1Q Bb7 Qh4 Bd5 Qg2+ Ke3 g4 Ng3 Nb3 Nh1 Rb7 Qe1 d1B Qc3 d2 Bd3 Be2 B3e4 Rg8 h8B d1B Bd2 Bc2 Rg1 Bcd3 Qa1 Rg5 Be1 Bf3 Bg3 Qh7 Bh2 Bfe2 Nf2 Bf1 Nh1 Qc2 Rg3 Bh3 Rg2 Qdc6 Rg3 Qg6 Rg2 Kg8 f7+ Kh7 f6 Kh6 Rg3 Rf5 Rg1 Bg7 f8Q Qd7 f7 Qg2 Qg8 Bf8 Rc1 g3 Rc8 Rc7 Re8 Rc2 Rb8 Rb2 Rd8 Bg7 f8Q Qc7 Qfc5 Bf8 Qc2 Qb7 Qf2 Qbh7 Qf7 Be7 Rg8 Bf8 Qb1 a1R Qa2 Rf1 Qa1 Rbb1 Qfa2 Rb2 Qf6 Rh5 Qf2 Rf5
N1N1rK2/2nb3Q/1B1r1b1Q/p2Nn3/1B1q1R2/4p3/p2B1pk1/B1bqq1N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e5 Nh3 Kd7 Ng1 Ke8 e4 Qd7 b4 Bd6 Bb5 Bc5 Ra3 Ke7 Rf3 Nf6 Rf4 exf4 e5 Qd8 e6 Ng8 Ba6 Ke8 Bb7 Bf8 e7 Kd7 Bc6+ Kd6 Bb5 Bh6 Bd7 Bf8 Be6 fxe6 Qg4 Kd7 Qe2 Ke8 Qd1 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 Ke4 Kc5 a5 g4 h5 d4 c6 b5 a3 b6 h3 d6 a2 e8N h4 d5 e5 f6 f3 b7 f2 g5 h2 g6 h3 g7 Rh4 f7 Rh8 Nc7 Nf6 g8Q Qd7 Qh5 Ra7 Qh6 Be7 f8B Ra6 Bd2 Ne8 Na8 Nc7 Qf7 Bf6 Qfh7+ Qf5 Bg7 Re8 d7 Rb6 d8B Bd7 Kd6 Qg6 Ne2 Kf3 Be7 e4 Nbc3 e3 Ng1+ Kg2 Bef8 Qd3 Bh8 Nba6 b8N c5+ Nc6 c4 Be7 Nc5 Bg7 Rb1 Na7 Qd4 Nc8 Nd3 Bef8 Ne5 Be7 Bh4 Bgf6 Rd1 Bf8 Rd8 Ke7 Bg5 d6 Bh4 Na4 c3 N4b6 c2 Nd5 c1B Nc3 Nc4 Nd5 Re8+ Kf7 Ne5+ Kg7 Bc6 d7 Bg5 d8B Bd7 Be1 Rd2 Bb4 Rd3 Bed2 Bh4 Ne2 Bg5 Rd1 h1Q Ng1 h2 Q6g6 Na6 Bb6 Nc7 Qgh6 Bh4 Nh3 Qe1 Ng1 Nc4 Kf7 h1Q Bh8 Ne5+ Kg7 Re7+ Kf8 Bf6 Bg7 Bb2 Rb1 Bc1 Rb2 Qh5 Rc2 Qhd1 Rc4 Qb2 Re4 Qd4 Rf4 Re6 Bh8 Rd6 Bg7 Rc3 Bh8 Rcc6 Bg7 Re6 Bh8 Rcd6 Re4 Be7+ Kg7 Qa1 Qf6 Ng4 Rf4 Bd8 Kf7 Re8 Qfh6 Qc3 Bhd4 Ne5+ Kg7 Qc4 Bd4c3 Qd4 Ba1 Ree6 Kg8 Bf6 Kf8 Re8#
8/N2B2bR/nRp1q1Rq/k4p2/NnpNp3/b2R1N1r/6Q1/1rrnQK2 w - - 0 1 legal: proof: g4 d5 f4 a5 e4 f6 c4 dxc4 b4 axb4 f5 Be6 e5 Bd5 h3 Bf3 g5 Kd7 Bb2 Bg4 hxg4 fxe5 f6 e4 f7 Ra5 Be5 Ra8 Bf6 gxf6 a4 Kc6 d4 Kb6 d5 e5 g6 h5 g5 c6 g7 b3 d6 b2 d7 f5 g6 e3 Nc3 b1N Nf3 h4 Nb5 e2 Na7 h3 Bg2 Ne7 g8Q h2 g7 Qe8 d8R Nc3 Rb1+ Ka5 Rb6 Rh3 Rd3 Ned5 Qb1 Ba3 f8N Na6 Ne6 Nd1 Ned4 Ndb4 Qd5+ Nc5 g8R Qe6 Rg6 Rah8 Qe4 Nca6 Qa1 Nb2 Kf2 e1B+ Kf1 Bc3 Qae1 Nd1 Ke2 R3h4 Ng5 Na2 Qg1 Qc8 Rb3 b5 Nde6 b4 Nb5 Nf2 Qc1 Re8 Kf1 Nb8 Qg4 Kb6 a5+ Ka6 Bd5 Qd7 Rb2 b3 Qg2 Rh6 Rb1 b2 Nf3 Re7 Qe3 Qe8 Qe4 Rb7 Qe2 e4 Qe1 Bg7 Ned4 Nd1 Be6 Rb6 Bd7 Qe6 Na7 Rb3 Nab5 Rh4 Qg4 Rc3 Qg2 Kb7 a6+ Kb6 a7 Na6 a8N+ Ka5 Nb6 Rh6 Rg1 h1Q Na4 Qh2 Rh1 Qh4 Nd2 Rc1 Na7 Qg5 Rh4 Rh7 N2f3+ Qd2 Rf4 Rh2 Rh4 Rh3 Rc3 Qf4 Rh7 Qh6 Rb3+ Rc3 Rb6 N2b4 Rc1 b1R Rc2 Qe8 Rd2 Qe6 Rd3 Rcc1
5bk1/3nr1N1/2bRRB2/N2p1NR1/3p1b1Q/2ppNK2/1n1r1Rr1/2b2q1Q w - - 0 1 illegal: No proof kernel
1N1r3r/k1q1Q1QN/b1B2rB1/4N1bB/3pK3/B1rp3N/p2pRb2/r1n5 w - - 0 1 legal: proof: f4 c5 e4 g5 h4 gxh4 d4 cxd4 b4 b5 a4 bxa4 e5 e6 Ra3 Nc6 Rc3 Na5 Rc4 d3 Rd4 Nc6 Rd5 exd5 e6 Ne5 fxe5 d4 Kf2 d5 Kf3 f5 c4 h5 g4 a5 g5 f4 g6 a3 b5 a4 e7 Kd7 e8B+ Kc7 g7 Kb6 e6 h3 c5+ Ka7 c6 d2 c7 d3 e7 a2 Bf7 a1B e8Q a3 Qe4 a2 Qb4 h2 Qc2 h4 Qe7 h3 Be8 Ba6 c8B+ Qc7 Bcd7 Bd4 Na3 Rd8 Be2 Bf2 Qc3 Nh6 g8N Nf5 Bc6 Ng3 Nc4 Bh6 Bg6 Bg5 Qcg7 d4 Bd1 Ne2 Ke4 f3 Ba3 Nc1 Ne5 Be1 Nf6 f2 Be2 f1R Nh7 Rf6 Bf3 Bf2 b6+ Kb8 b7 Ka7 b8N Be1 Ne2 Bf2 Re1 h1R Bg4 h2 B4h5 Rg1 Nf4 h1R Re2 Rf1 Bb5 Rc6 Ba4 Rc3 Bc6 Rhg1 Bge8 Rh1 Bhg6 Rh6 Nh3 Rh1 Bh5 Rf6 Bhg6 Nb3 Bh5 Ra1 Beg6 Nc1
1rr1brB1/4QR2/2n1K1R1/p1N4N/r2Qpqn1/4Np1Q/prQ4q/k2N4 w - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 fxe6 Nb1 e5 Ra3 e4 Ra2 Nh6 Ra1 Ng8 f4 Qb6 g4 Qb7 h4 Kd8 f5 Bh6 Bf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Qc7 Ra3 Qb6 Ra1 Qd8 Ke2 e5 b4 Ke7 c4 Kd6 f6 a5 g7 h5 b5 Kc5 b6 Kb4 b7 d5 c5 e3 Kf3 e2 f7 e1R f8Q h4 c6+ Qd6 g6 d3 c7 a3 Ra2 d4 Ne2 d2 Ke4 f3 Qe7 d3 Qc2 d1R Nd2 h3 Nc4 d2 Ne3 h2 Nc3 Nc6 b8N Nh6 g8Q Ra1 g7 d1R Qgd8 Rd2 g8N Ng4 Nf6 Rec1 Nh5 Rf8 Nd7 Rb8 Nc5 Bd7 c8Q Be8 Ncd1 Rg2 Rg1 h1Q Bc4 Qh2 Bg8 Qf6 Kd5 e4 Qcd7 Qff4 Ke6 Rd2 Nb3+ Ka4 Rb2 Ra2 Q7c8 Rd4 Rb1 Rb2 Nc5+ Kb4 Qcd7 a2 Q8c8 Rc4 Qd4 Ka3 Qcd7 Ra4 Rg3 Rc8 Rg1 Rbb8 Rb7 Rb1 Rg2 Rb2 Rc7 Nge5 Rg6 Ng4 Kd5 Nge5 Qh3 Ng4 Ke6 R2b3 Qef6 R3b4 Rf7 R4b6 Nc3 R6b7 Qe7 Rbb4 Qcd1 Kb2 Qc2+ Ka1 Ncd1+ Rb2
3n4/5rp1/r3nqB1/Q5Rp/b1BppQQK/k1NnQ1B1/n3r2R/1r4B1 w - - 0 1 illegal: No proof kernel
2q3NQ/1bB1K1Bn/ppN1R3/p1kq4/rp6/2N2Brp/3Q1N2/q1r2B1n w - - 0 1 illegal: No proof kernel
kb4Rq/1rBbp2n/pbp1N3/2r1pRKQ/QQ2b3/6p1/1bN4Q/4N1N1 w - - 0 1 illegal: No proof kernel
1N6/pNpR2QR/q1N1pQ1p/3RN1bK/2R1b3/k1Bb4/n1n3p1/b1q4r w - - 0 1 legal: proof: g4 d5 d4 b5 c4 dxc4 h4 g5 e4 f6 a4 bxa4 d5 Na6 Bg2 Rb8 Bh3 Rb6 e5 gxh4 g5 f5 Bg4 Rd6 exd6 fxg4 Ke2 Kd7 b4 c3 f4 e6 f5 g3 Kf3 h3 Kg4 h2 b5 a3 b6 a2 g6 c2 g7 Be7 f6 Nh6+ Kh5 Bf8 g8N Nf5 f7 Nc5 b7 Na4 Bb2 c1B Bc3 Ne7 Nd2 Nc6 Ne7 Bg7 f8Q Nb4 Nb3 Nc2 Qdf3 Bg5 Rc1 a1Q Nc6 Qf6 Nba5 Qf4 Qf6 Qc4 Q3f5 Qa6 Qg4 Qb2 Nf3 Qa3 Rhd1 h1B Rd2 Qc5 Rh2 Bg2 Rh4 Qe3 Rch1 Qc1 R1h2 Bf1 Rh1 g2 b8N+ Ke8 R1h3 Bd3 Nfe5 Bb7 Qg3 Ba8 Rc4 Bb7 Qff3 B7f6 d7+ Kf8 d6 Ba8 Bb4 Nc3 Nb7 Na2 Qf1 Qa5 Bc3 Qa6 Nf3 Kf7 d8R Bd4 d7 Kf6 Bb4 Ba1 Bc3+ Kf5 Nfd4+ Ke4 Qf6 Kd5 Ne5 Bh6 Qgg7 Bg5 Nc5 Kd6 Rh1 Bae4 Nb7+ Kd5 Ndc6 h6 Rd1 Rf8 Rd2 Rf7 Rh8 Rf8 Rh7 Rf7 Qe7 Rf1 Qef6 Re1 Nd6 Rf1 d8R Rd1 Rd7 Rg1 Ra4 Kc5 Nb7+ Kb5 Rad4 Rf1 R4d5+ Ka4 Rf2 Ka3 Rf4 Bf5 Rfd4 Bfe4 Rc4 Rh1+
2KBBkq1/1nqR1q2/B4N2/bB1n2qN/N4rbr/2q2BR1/b2r4/2b1N3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 f5 g4 a4 b4 h3 e4 d3 c4 d2 c5 f3 g5 f2 g6 d4 g7 d3 b6 h4 c6 a3 b7 h2 c7 f4 b5 h3 b6 f3 Ra2 Qg5+ Kd4 Nd7 b8N Nc5 b7 Be6 c8B Ne7 g8B Bh6 e5 Nd5 Qc2 d1R Nc3 d2 Bb5+ Kf8 Na4 f1Q Qc4 f2 Nf3 Qe2 Rg1 h1Q Rg3 f1Q Ne1 h2 Bf7 Ra5 Bh5 Qf7 Bf3 Qhg2 Bb2 Bg4 e6 h1B Bc3 Ra6 Ba5 Qgg8 Rb2 a2 Bd8 a1B Qc2 Qef1 Ke5 Qc4 Qc1 Ra8 Kd6 Bg5 Rb3 Rh4 Rd3 Bc3 Kc6 Ba5 e7+ Kg7 e8B Kf8 Qc3 Qg1 Qe5 Qgd4 Qc7 Qdc3 Kd6 Bg2 Rd4 Bf1 Kc6 Bd3 Kd6 Bb1 Rd3 Ba2 Nd7+ Kg7 Nf6 Kf8 b8N Bf4+ Kc6 Nb7+ Nc5 Bh6 Nh5 Qg5 Ng2 Rf1 Ne1 d1Q Rd2 Qdb3 Nd7+ Kg8 Ndf6+ Kf8 Bg2 Rf4 Bf3 Qb1 Rd1 Qbh7 Rd4 Qhg8 Rd1 Nb6 Rd6 Nd5 Rd7 Nd6 Bca6 Rb8 Ba4 Rb2 B4b5 Rf2 Bc8 Rd2 Bca6 Nc8 Kb7 Nd6+ Kb8 Nb7 Na4 Bg7 Ne4 Bd4 Kc8 Bc5 Bg2 Ba3 Nef6 Bc1 Bf3 Qxc7+
B1n1N1k1/np1n2B1/n6B/R1n1qnn1/1r2rbNR/4b3/1B2K1B1/2RRb3 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 f5 Qd2 h5 Qf4 d6 Nb1 Bd7 Qg3 f4 Qh4 Bf5 gxf5 Ra3 Qh3 Ra8 Qg4 hxg4 h4 Kf7 a4 g5 e4 g3 c4 f2+ Kd2 b3 f6 g4 e5 b2 a5 g2 h5 f3 c5 d3 a6 d5 a7 d4 c6 g3 c7 Na6 c8R Qe8 h6 Ne7 e6+ Kg8 Rc4 Nc8 Rc5 Bd6 e7 Bf4+ Kd1 d2 Bb5 f1N Nh3 g1B Ng5 f2 Ne4 g2 Rc3 Nh2 Nc5 f1N Nd7 Ne3+ Ke2 d1N Bd2 d3+ Ke1 Nf5 Na3 b1N Ra2 Nde3 Bc6 Neg4 Rc1 Ne5 Nb5 Nc3 Ra5 Ne4 Nd6 Bge3 Kd1 Rb8 a8B Nhf3 Rh4 g1B Bc3 d2 Ke2 d1N Bb2 Qh5 Ne8 Nec5 Be4 Bgf2 f7+ Kh7 f8B Kg8 Bg7 Ng5+ Bf3 Be1 h7+ Kf7 Ndf6 Ned7 Ng4 Nc3+ Kf1 Nb5 Ke2 Nba7 Bg2 Rf8 h8B Kg8 Bh6 Rf6 B8g7 Rb6 Nd6 Rb4 e8R+ Nf8 Re5 Nfd7 Rd5 Qe8 Rdd1 Qe5 Bh3 Ncb6 Bf1 Re8 Bg2 Re6 Ne8 Nbc8 Bh1 Reb6 Bf3 Re4 Bg2 Rbb4
B1r3RB/1Bn3B1/r2rR3/qRn1q1k1/2r5/K2NR3/3B1pbp/nbnN4 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 c5 axb4 c6 dxc6 Bc4 c5 Bf1 c4 h4 Na6 g4 Kf7 f5 Qd7 Qf3 Qd8 Qf4 gxf4 g5 Bh6 g6+ Ke8 Bd3 Bg5 hxg5 Nb8 Be2 Qd5 Bf1 Qd8 Kd1 e5 Kc2 Ke7 Kb2 c5 d4 h5 a4 b5 a5 b3 d5 c3+ Ka3 c2 a6 c4 g7 c3 a7 b4+ Ka4 h4 g6 Kf6 d6 b2 d7 e3 Na3 b1R Bc4 b3 Bf1 e2 Bb2 e1N Bd3 c1N Bb5 h3 Ne2 f3 Bc4 c2 Nc3 f2 Be2 e4 Ra2 e3 Nc4 h2 Bf3 e2 Bb7 Na6 Ka3 Nc5 Ne5 Ne7 g8R Kg5 f6 Na4 f7 Qa5 f8B Nd5 g7 Nc7 Nd3 Qe5 Ba1 b2 Nd1 Rh6 Bb4 Rd6 Re8 Rb8 a8B Ra6 Bf3 Bb7 Re6 Rc8 Bc3 Qa5 Re3 Bd5 Bd2 Bc6 Rf1 Bb7 Bh1 Bg2 d8B+ Kg4 Nb4 Nb3 Re7 Bd5 Bg5 Nd3 g8R c1R Re1 Rc4 Re6 Ndc1 Bdf6 Bc6 Bh8 Kh5 Rg1 e1Q Rg3 Qe2 Bh6 Bf3 B6g7 Qee5 Nd3 Bb7 Re3 Kg5 Bf3 Bc6 Bg4 Bg2 Bgf3 Rd4 Bfb7 Rdd6 Rf6 Ne2 Rh6 Rc1 Re6 b1B Bc3 Na1 Bd2 Rc4 Rb2 Nc1 Rb5 Nc5+
NB1B4/3nq3/1qR5/R1B1qK2/5pNB/1BN1q2k/N2bpb1n/2rrr1r1 w - - 0 1 legal: proof: f4 d5 e4 a5 g4 g5 d4 h6 b4 axb4 c4 dxc4 d5 Be6 d6 gxf4 g5 h5 Qg4 Bd5 exd5 hxg4 Kf2 Kd7 h4 b5 a4 f5 a5 c5 a6 e5 g6 c3 h5 e4 g7 f3 Kg3 b3 Kf4 c2 h6 c4 a7 b4 h7 c3 Rh6 b2 Be3 c1Q Ra2 c2 Rh2 g3 Rf2 b3 Ra1 g2 Ke5 f4 Nc3 b1Q Ba6 b2 Nd1 Nh6 g8N Qe7+ Kd4 Ng4 Ra3 Nh2 Nc3 Qa1 Bc4 b1Q Nh6 Rg8 Ne2 g1B h8B Qb7 Rg2 f2 Ng4 f1R Ra5 Bf2 Bb3 Re1 Be5 Qca3 Rg3 c1R Rh3 Qb5 Rh6 Qb1 Na2 Qa1+ Nec3 Qb6+ Kc4 Rg5 Bc5 e3 Kd4 e2+ Ke4 Rg6 Ne3 Rgg1 Kf5 Rcd1 Ng4 Q3c1 Bf6 Qce3 Bh4 Bg7 Nb1 Bb2 Nbc3 Bc1 Rf6 Bd2 Rg6 Ke8 d7+ Kf7 d8B Nd7 Bc7 Rc8 Rc6 Kg7 a8N Kh7 Nf6+ Kh6 Ng4+ Kh5 d6 Qb2 Bb8 Qa1 Bf6 Qb2 Be5 Kh4 Bf6+ Kh3 Bh4 Nf6 d7 Rc7 d8B Nd7 Rf6 Rc8 Bb4 Rc4 Rc6 Qa1 Bc5 Qb2 Na4 Rcc1 N4c3 Qa1 Ne4 Qad4 Nec3 Qde5+
1B2rR1N/b2qq1r1/1pB1BN1r/1q6/2b4n/1RNpKq2/B3b3/3NrN1k w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Qd3 f5 Qd2 Nc6 Nb1 Nce7 Qg5 f4 Qh4 Nf5 gxf5 Ra7 Qg3 Ra8 Qg4 hxg4 Kd2 Ke7 e4 Kf6 h4 Ke5 a4 d5 c4 g5 a5 d3 a6 b3 f6 f2 f7 g3 a7 g2 c5 d4 h5 f3 h6 Kf4 h7 Kg3 e5 g4 c6 b2 c7 Be6 c8N Ne7 Nc3 b1Q Ra3 Ng6 Ne7 Nh4 Ned5 Qb5 Nh3 g1R Rb3 Bc5 f8N Qe7 Ne3 Bc4 e6 Re8 a8B Ba7 Nd7 b6 Nf6 Qbd7 Be2 f1Q Bc6 f2 Bef3 Qg2 Bfd5 f1Q+ Nf2 Qf3 Ba3 Qb1 Nf1+ Kg2 Bd6 g3 Rh3 Rh1 Bb8 Kg1 Nfd1 g2 Rh2 Rhg8 h8N Rg7 Rh3 Rh2 Rg3 Kh1 Rg5 Rh3 Rf5 g1R Rf4 Ng6 Rf5 Rh6 Rf4 Nh4 Rf5 Qed6 e7 Qc5 Be6 Qb4 Nfe3 Re1 Nf1 Qb5 Rf4 Qa1 Rf5 Qa3 Bcd5 Reg8 e8B Qae7 B8f7 Re8 Bc6 Rg1 Rg5 Rg4 Rg8 Rg7 Kc1 d2+ Kc2 Rd8 Rf8 d3+ Kb2 Qfd5 Bg4 Rhg6 Rb4 Qf3 Bfd5 Rc8 Bge6 Bb3 Bc4 Re8 Kb1 Ba4 Ba2 Bb3 Kb2 Bc4 Rb3 Qbd5 Ne2 Qb5 Kc3 Qc8 Kd4 Rh6 Nde3 d1B Nc3 Be2 Ned1 Qfd5+ Ke3 Qcd7 Kf4 Qg2 Ke3 Qf3+
BK4n1/1b2k3/1bRRr1BB/2nR1b1N/2B2Rpr/bbb4p/r3R3/5r1N w - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 g6 dxc4 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Ra7 Bc1 Ra8 h4 g5 d4 g3 d5 g4 Qd4 Qg5 hxg5 exd4 Kd2 b5 f4 c5 a4 h5 e4 b3 d6 b4 e5 g2 f5 c3+ Kd3 h4 Kc4 h3 Kd5 c2 d7+ Kf7 d8R b2 e6+ Ke7 g6 b3 g7 d3 a5 c4 a6 c3 a7 d2 Ra2 d1B Ne2 g1B Bh6 c1R Ng3 c2 Nd2 b1B Nh5 b2 Bc4 Bd4 Nf1 Nd7 Kc6 Rb8 Kc7 Nb6 a8B Nd7 Nfg3 Nc5 Rd6 Rb6 f6+ Ke8 e7 Bc3 Rh2 Bb7 Kb8 Rh7 Rd5 Re6 Re2 Kf7 e8R Be7 Ra4 Bd8 Nh1 Bb6 Rc8 Rh8 Rc6 Ke8 f7+ Ke7 f8R Rh7 Be3 Rh8 Nf6 Rh4 Ra6 Ba2 Rg5 b1R Rd5 Bb3 Nh5 Rb2 Bh6 Ra2 Rf4 Rb1 Bd3 c1B Bg6 Bdc2 Rcd6 Ba3 Rc6 Nf6 g8B Rf1 B8f7 Ng8 Rcd6 Bba5 Rac6 Bb6 Rd1 Re4 Bc4 Re6 R1d5 Bf5
N2qKb2/2Rr1r2/r1pk2N1/1b1b1Rbp/r4RRB/2B5/6Bp/r2B1R1n w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 gxh4 b4 a5 g5 axb4 g6 e5 f5 Nd7 f6 Nc5 Qc2 Ne6 Qe4 Ng7 Qf4 exf4 fxg7 Be6 Nh3 Bf5 Ng1 Bc8 Kf2 Kd7 Kf3 b5 Ke4 h5 Ke5 f5 a4 c6 d4 f3 e4 f4 a5 b3 a6 h3 d5 h2 a7 c3 d6 b2 Nh3 b4 Nd2 b1B Ra4 c2 Nc4 b3 Nb6+ Ke8 d7+ Ke7 Bb2 c1B Bc3 f2 Bg2 f3 Rf1 b2 Nf4 Nh6 g8B Ba2 g7 b1R Bb3 Rb2 g8R Rd2 Rg4 Ba6 Bd1 Bd5 Ra5 Bb5 Ng6+ Kf7 Rf4+ Nf5 Rg4 Qh4 d8B Ng3 Bg5 Ke8 Kf6 Nh1 e5 Rh7 e6 Ra2 Raa4 Rd7 Raf4 Ra4 Rf5 Kd8 e7+ Kc7 e8R Kd6 Rc8 Bd2 Rc7 Be3 Re1 f1R Rff4 Rf2 Rf1 Rfa2 Rf5 Ra1 Rff4 Qf2 Bh4 Qb2 Rf5 f2 Rgf4 Rb8 Na8 Rb6 Rg4 Rba6 Rgf4 Be7+ Kg7 Bc5 Rg4 Bg5+ Kf8 Ba3 Ke8 Bb4 Re1 f1R Ree4 Qf2 Ref4 Qd4 Nb6 Qf6 a8R Ke6 Raa7 Bf8 Na8 Kd6 Rab7 Bbc4 Rb1 Bb5 Rc1 Rd4 Bdf3 Ba4 Re5 Qg7 Rfe4 Bb5 Be2 Rf2 Rf1 Rda4 Bd1 Rff7 Ref5 Qf6 Ref4 Qd8#
Bk2K2B/1q6/pbR2N2/B1R2p2/2nr3p/Bb1npp1r/B1pR1R1b/5N2 w - - 0 1 legal: proof: f4 g5 e4 b5 h4 gxh4 b4 e5 a4 bxa4 c4 d6 b5 Qd7 b6 Qb5 cxb5 exf4 e5 d5 Qc2 Ba3 Qd3 Bf8 Qe4 dxe4 Kf2 Kd8 d4 f5 g4 h5 d5 c5 g5 e3+ Kf3 h3 g6 h4 g7 a6 e6 c4 e7+ Kd7 e8R a3 d6 h2 b7 c3 b6 a2 Ne2 c2 Ng3 Rh5 Ne4 Be7 Nbd2 Bf8 Rd8+ Kc6 d7 Be7 Bg2 Rh8 Nf6 Nh6 g8B Rh7 Rf1 h1Q Rf2 Kd6 Rb1 a1B Rb5 Be5 Rc5 Nc6 Ba3 Nf7 Nf1 Rg7 b8B+ Ke6 b7 Nb4 Bc7 Rg4 b8R Rg3+ Ke2 Rh3 Ba5 Kd6 Rb7 Rb8 Rbc7 Bb7 Bf3 Bd5 Rcc8 Be6 Ba8 Rb6 R8c7 Qb7 Rcc8 Nc6 Kd3 f3 Rc7 Bh2 Rcc8 Nb4+ Kd4 Ne5 R8c7 Bd5 Be6 Be4 Ba2 Bd5 Rcc8 Ke6 R8c7 Rd6 R7c6 Bc4+ Rd5 Bb3 Kc5 Nc4 Rdd2 Bf8 Re8+ Kf7 Re5 Be7 Red5 Bd8 Re5 Rd4 Rd5 Ne5 Kd6 Kf8 Ke6 Nc4 Re5 Bb6 Rec5 Kg7 Ke7 Nd3 Ke8 Kg6 d8B Kg5 Be7 Kf4 Nd5+ Ke5 Bd6+ Ke6 Be5+ Nd6+ Kf8 Kd7 Bh8 Nc4 Kf7 Qc7 Nf6+ Kc8+ Kf8 Kb8 Ke8 Qb7
bB1b1Bqk/N2rR3/2bB2rN/2q2p2/bn1NqR2/KRq5/2R5/b1nB4 w - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 Kd2 g5 c4 f5 Kc2 Kf7 Kb3 Kg7 h4 d5 e4 a5 c5 d3 b6 a4+ Ka2 g4 b4 d4 h5 d2 e5 d1B b7 d3 e6 d2 c6 a3 e7 Qd3 e8R Nd7 b8N Ra7 c7 Nc5 b5 Be7 b6 Bb7 c8R Qc3 Be2 Rh6 Rh4 Ba4 Nc6 d1B Nd8 Kh8 Nf3 g1Q Bf4 g2 Bd6 g3 Nd4 Nb3 Rf4 Rg6 h6 Qge3 h7 Bbc6 b7 g1Q b8B g2 Bh5 Bg5 Re7 Bdf3 Bg4 Bfd5 Bd1 Rd7 Rc7 Qe4 Nf7+ Kg7 Nh6+ Kh8 Rb7 Nf6 Rb6 Qge3 Rb5 Qc5 Nc3 g1Q Rc1 Bh4 Rc2 Nc1+ Ka1 a2 Kb2 Ba8 Rb3 Bdc6 Ncb5 Nd5 Na7 Nb4 Ka3 a1B Re6 Kg7 h8B+ Kh7 Bhe5 Bd8 Bf8 Qec3 Bed6 Kh8 Re7 Re6 Rd2 Qg8 Rc2 Rg6
1n1RbKq1/1n1r1N1B/Nq3p1R/5R1N/5p1n/B4k1N/B1B3r1/n3br1n w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Qd2 exf4 Qb4 axb4 a5 b6 axb6 Ra5 Ra3 Ra7 Ra1 Ra8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 Kg4 e4 h5 c4 h3 g3 b3 b7 b2 b6 h4 e5 f6 e6 h2 e7 h3 Kd6 d3 c5 d2 c6 d1R+ Bd3 Rh7 c7 Ra2 Nc3 b1Q Nce2 Nh6 Ba3 Rf1 Bc2 Qb3 Rd1 Qg8 Rd5 Rb2 Rf5 Nf7+ Kd5 d6 e8N Bd7 c8B Bc6+ Ke6 d5 Nd6 d4 Bd7 d3 Bc8 d2 Bd7 Ne5+ Nf7 d1N Bc8 Nc4 Bd7 Na6 b8N Bb4 b7 Qb6 Bc8 Be1 Ke7 Be8 Be6 Na5 Ba2 Qg5 Kf8 Ne3 Nd4 Rg7 Ne6 Rh7 Ng7 Qg6 Bcb3 Rg2 Nh5 Nc2 Ba4 Na1 Bc2 Nb4 Na6 Nbc6 b8R Nb7 Rd8 Nb8 Ne2 Kf3 g4 Rg7 g5 Qh7 g6 Qg8+ Ke7 Rh7 g7 Rff2 Rg1 h1N Rf1 Ng3 Rh1 h2 Ng1+ Kg4 Nh3 Rf1 Rd1 Kf3 Rd8 Qh8 g8B Rg7 Rb5 Nf5+ Kf8 Nh4 Rf5 Qh7 Nd6 Qg6 Bh7 Rd7 Nf7 Rgd2 Rg1 h1N Rg2 Qg3 Rh2 Qgg1 Rg2 Rdf2 Rg6 Qg4 Rh6 Rg2 Rb5 Qg3 Rf5 Qg8+
1R6/6b1/Kp4bn/Nqq3rB/2r1R1rR/p3qNn1/3R2nN/BB2Bq1k w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Qb3 exf4 Qa3 bxa3 g4 Kd7 d4 Kd6 Kd2 c5 Kd3 f5 Kc4 h5 Kb5 b6 e4 h3 g5 h2 a5 h4 g6 f3 a6 c4 g7 c3 a7 f2 Nd2 f4 Bh3 f1Q+ Ne2 f3 Bb2 f2 Re1 c2 Nb3 c1R Bf5 h3 Na5 Rh4 Ba1 Nh6 g8N Qg5 Nf6 Rc4 Ng4 Nc6 Ng1 Nb4 Nf3 Qe3 Re2 Rb8 a8R Nc2 Rd2 Rb7 Ka6 Ne1 Rb8 Ng2 Bg6 Bf5 e5+ Ke7 d6+ Ke6 d7 Kd5 d8R+ Ke4 d5 Rg7 Bh5 Rg5 e6 Bg6 d6 Bg7 d7 Qg1 e7 f1Q e8B Qc5 Rd5 Qge3 Rd2 Qb1 Re1 h1Q Ngh2 Rhg4 Bf7 Qg1 Rh8 Qf1 d8B Kf4 Be6 Kg3 Bf5 Qbd3 Bdf6 Qde2 Bb1 Kf2 Nh4 Kg1 N4f3+ Kh1 Bfe5 Q2d3 Bg3 Qd7 Ree2 Qde8 Be1 Qeb5+ Ka7 Qef2 Re4 Qfe3 Kb7 Nf5 Rh7 Qff2 Nf1 h2 Nh4 Kg1 Rhh8 h1N Rhf8 Nhg3 Nf3+ Kh1 N1h2 Nh6 Rff4 Qf1 Ka7 Ngf5 Kb7 Rg3 Rh4 R3g4 Ka7 Ng3 Kb7 Qb2 Ka6 Qbb5+
6R1/2N2nNB/1B1p3r/Bbn1B1b1/2rnq3/1RNk1b2/1bR1Npqn/3K4 w - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 b4 Ke7 c4 Kd6 e4 Ke5 h4 g5 b6 a5 h5 f5 b5 d6 c5 d3 h6 Kd4 c6 g4 c7 f4 h7 a4 b7 d2+ Kd1 a3 e5 f3 e6 a2 b6 f2 e7 Bd7 e8R Be7 c8N Na6 b8N Nc5 b7 Nh6 Ke2 d1B+ Kd2 Ra4 Na6 Nf7 b8B Rc4 Bd3 Bf3 Nc3 Bb5 Rb1 a1B Rb3 Bb2 Rg8 Qe8 Bc7 Bg5+ Kc2 Qe6 Bd2 Qe4 Be1 Ke3 Ne2 g1N Kd1 g2 Bb6 g3 Rh5 Qe6 Bg6 Qe4 Nc7 Kd3 Rh4 Bg4 Rh3 Nf3 Ne7 g1N Nf5 Nh2 Ng7 Ngf3 Bf5 g2 Rg3 g1Q Rc8 Rf8 h8B Re8 Bh7 Re6 Rg8 Qg2 Rh3 Ba3 Rb2 Rh6 Rc2 Bac1 Nb1 Bge3 Nge8 Bb2 Bea5 Bg5 Be5 Ke3 Ng7 Bh5 Rh4 Nd4 Rf4 Qg6 Rf3+ Ke4 Rb3 Bf3 Nc3+ Kd3 Rd8 Qf5 Rg8 Qe4
2q3n1/2N1b2r/1pB1R2q/B1NRqb1N/1K5R/1n2p1rn/3RBp2/4kbN1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e4 g5 h4 gxh4 f4 e5 Qb3 exf4 Qe3 fxe3 d4 Ke7 g4 Kd6 a4 c5 a5 f5 g5 h5 a6 f4 a7 b6 g6 b3 g7 f3 Ba6 b2 Ra2 h3 Be2 c4 Kd1 c3 Kc2 h2 Kb3 c2 Nc3 b1B Ka3 h4 Na4 h3 Kb4 Qg5 Bd2 c1Q Nc5 Qe5 Be1 Nd7 Rd2 Rb8 a8B Bd3 Bb7 Be7 Bc6 Nh6 g8N Rh7 Nf6 Ng8 Nh5 Bda6 Ne6 Nc5 Nc7 Nb3 Bb7 Kd7+ d6 Bc4 d5 Ra8 Bd1 Bf1 Be2 Ra7 Ba8 Rg7 Bb7 Rg3 Ba8 Kd8 Bc6 Bf5 Na6 Rc7 Nc5 Ra7 d7 Kc7 d8N Kd6 Nde6 Rd7 Ka4 Qc4+ Ka3 Qa6+ Kb4 Qc8 Nf8 Qg7 Nfe6 Ke5 Nc7 Qf6 Rc2 Kd4 e5 Qh8 e6 Qe5 Na8 Rb7 d6 Rc7 d7 Rb7 Ka3 Rc7 Rd2+ Kc3 d8R Rd7 Rd5+ Kc2 Bd3+ Kd1 Ba5 Rc7 Kb4 Ke1 Rd4 Rb7 R8d5 Rc7 Rh4 Rb7 Nc7 Ra7 Ne2 Rb7 Rg1 h1N Rg2 h2 Ng1 Nf2 Be2 h1Q Rgh2 Nh3 Rg2 Bd8 e7 Ra7 e8R Be7 Bd3 Qh2 Rd2 f2 Be2 Bf8 Nf4 Qd6 Rh6 Ng5 Na8 Qe5 Ree6 Rh7 Nc7 Be7 Rh5 Qh4 Rhh6 Nh3 Rh5 Qg4 Rh4 Qg6 Nh5 Qh6
1N1bNnNb/4B2p/3nKN2/qqR1B2q/pB1b2RR/2rk2pb/B7/7b w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 e5 Kd2 e4 Ke1 fxg6 Qd2 g5 Qd1 g4 h4 a5 Kd2 g5 Bg2 g3 Bf1 g4 Ke1 Ra6 Qd2 Rg6 Qd3 Rg5 hxg5 exd3 Kd2 Kf7 e4 Ke6 f4 d5 b4 a3 c4 a4 b5 g2 f5+ Ke5 f6 a2 g6 Bb7 b6 Bd6 f7 Ba8 f8B Qd7 c5 Bc6 b7 Ne7 g7 Bc7 g8N Bd8 Nc3 Nc8 Be7 Nd6 Nge2 g1B Rh4 g3 Ba3 Qc7 Rb1 a1B Rb4 Nd7 b8B Qa5 Bh3 Bb2 Be6 Nf8 Rc4 Bd7 c6 Bf2 Bf7 Bh3 c7 Bg1 c8R Be3+ Kd1 d2 Kc2 d1B+ Kd3 Bf2 R8c5 Bb3 Kd2 d3 Bb4 Bd1 Nd4 Bf3 Rg4 Bh1 Be6 Be1+ Ke3 d2 Bf7 d1Q Rh4 Qh5 Kd3 Qg4 Nc6+ Kf4 e5+ d4 e6 Bf2 Ne4 Qb5 Rh6 Qg5 Nef6 Ba1 Rh4+ Kf3 Kc2 Ke3 Bc7 Qd5 Nb8 Qa8 Rg4 Qaa5 Rh4 Nb7 Be5 d3+ Kb1 d2 Rcg4 d1Q+ Ka2 Bc3 Ka3 Bd2 Kb2 Bc1+ Kc3 Nd6 Bg6 Ke2 Bb1 Bh6 Ba2 Bg7 Rcc4 Qdd5 Rc8 Bfb6 Rc5 Qf3+ Kd4 Qf5 Ne4 Qh5 Kd5 Kd3 Bf6 Qba6 e7 Q6b5 e8N Ba7 Nh6 Rg8 Bg5 Bh8 Be7 Rg7 Ng8 Bab6 Bg5 Rc7 Be7 Ng6 Ke6 Rc8 Rc2 Bd4 N4f6 Rc3 Rc1 Rb3 Rc8 Rc3 Rc5 Nf8+
1r1q1R2/nb1r2B1/1R2R2Q/1n3n2/qk2rR1Q/n1p2NR1/R1q2n1K/4b1R1 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 g3 h6 Bg2 h5 Bf3 Qg5 Nc3 Qd8 Ne4 Qd6 Nf2 gxf3 g4 Qd7 g5 Qd8 Ng4 hxg4 Kf2 Kd7 b4 Kd6 d4 a5 e4 f5 h4 c5 b6 c3 h5 g3+ Kf1 f2 Kg2 f1R b7 f3+ Kh3 a4 d5 c4 h6 f2 b5 Kc5 b6 c2 d6 g2 e5 a3 d7 a2 e6 f4 e7 f3 e8R Re1 g6 f1Q h7 f2 g7 Nc6 b8R Na7 b7 Kb4 Bh6 c1Q Bg5 Ne7 g8R Re4 Be3 Nb5 Qd3 Nc6 Nf3 g1N+ Kg3 Qfd1 Rg7 Ra7 Re6 Qcc2 Kh2 Nh3 Rg3 c3 Bb6 Bh6 Bd4 Bd2 Rhg1 Be1 Bg7 Rf8 h8Q f1N+ Kh1 Qa4 Qe3 Qdc2 Qeh6 Ne3 Ra8 Rg8 b8R Nf2+ Kh2 Nf5 Rb6 Bb7 Qh4 Re8 Q8h6 Rg8 Rd1 a1N Rf1 Qc7 Rc1 Rb8 d8R Qd6 Rf8 Qd8 Rd1 Ra6 Rfg1 Na7 Rd7 Ra5 Rdf7 Ra6 Rbd6 Rc6 Rff6 Rc7 Rb6 Rd7 R6f7 Nb3 Rff6 Nd2 R6f7 Nb1 Rff6 Nc8 Ra5 Na7 Raa6 Qab3 Ra2 Na3 R6f7 Qa4 Rff6 Ne3 Rf4 Nf5
3k3N/1rnNb2p/1p1N2N1/Qr1B1Q2/4Kb2/N1Q5/1q2b1bp/B1b2Br1 w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 a5 h4 e5 f4 exf4 a4 Ra7 h5 Ke7 Rh4 gxh4 g5 Ra8 g6 Ke8 Ra3 Nc6 b4 Nce7 g7 Ng6 hxg6 axb4 Bh3 bxa3 Bg2 Bb4 Bf1 Bf8 Kf2 c5 Kf3 f5 d4 a2 e4 a1B a5 c4 d6 c3 d5 c2 a6 b6 a7 h3 e5 h2 d7+ Ke7 d6+ Ke6 Nh3 Qc7 d8N+ Kd7 e6+ Ke8 e7 Qc3+ Qd3 Nf6 g8B Nd5 g7 Nc7 Bb2 c1B Nf7 Qb3 Bf6 Be5 Na3 Qb2 Qc3 Rb8 a8Q Rb7 Qa7 Kd7 e8N Be7 Nh6 Kd8 d7 Bd6 Bd5 Rf8 g8N Rf7 Qa4 Rg7 Bd4 Rg1 Ngf6 Be5 Qac2 Rg5 Nd6 Rh5 Ke2 f3+ Kd3 f4 Ke4 f2 Qa4 f3 Nf4 Rf5 Ng6 Bef4 Qaa5 Rg5 Nhg4 Rh5 N4e5 Rg5 Nh8 Rh5 Be2 f1R Neg6 Rg1 Bf1 f2 Qb3 Qd2 Ba1 Qb2 Qh3 Rhg5 Qf5 Rh5 Bg2 f1B Bh3 Be2 Bf1 Na6 Qc3 Rh3 Qa5 Rb3 Qc3 Rb5 Qa5 Kc7 d8Q+ Kb8 Qc7+ Ka7 Qc4 Kb8 Qe6 Nc7 Qf7 Bcg4 Qcc3 Bh3 Nde8 Kc8 Nd6+ Kd8 Nd7 Bfg5 Qff6 Bgf4 Qf5 Bg2+
BN1NQQ2/2kpK1Br/3r4/1q2r2p/N3p2r/1N1n2qQ/2n4n/2Bb1N2 w - - 0 1 legal: proof: d4 a5 b4 b5 e4 f5 a4 fxe4 axb5 c5 b6 cxd4 b5 Nf6 Ra4 Ng8 Rc4 Nf6 Rb4 Ng8 f4 axb4 g4 g5 h4 Ba6 f5 Ra7 Rh3 Qc8 Rf3 Bh6 Rf4 gxf4 g5 Ra8 g6 Bg5 hxg5 Qd8 Ne2 Bb7 Ng1 Bc8 Kd2 h5 c4 e5 c5 b3 c6 d3 Kc3 b2 Kb4 f3 Kc5 e3 Kd6 e2 b7 e1Q b6 d2 f6 f2 c7 Qe4 g7 Qe2 g6 Ra3 Bg2 f1N Qb3 d1R+ Nd2 b1R Nf3 Nh6 Nd4 Ra5 Qh3 Nc6 b8N Rb4 b7 Qb5 N4b3 Nd4 Nc6 Rh7 b8N Bb7 c8N Ng4 Nb6 Nc2 Na4 Nfh2 Bh1 Qc8 Nd8 Nf2 Be4 Ba6 Ba8 Nd3 Nf1 Rg4 Ne3 Qcc4 Nf1 Qf7 g8Q+ Qf8+ Kc7 e4 g7 Rh4 f7+ Ke7 Qh8 Qg8 f8B+ Ke8 Nbc5 Qgb3 g8Q Qc3 Qf6 Qe1 Qf4 Qg3 Bg7+ Ke7 Nb3 Rd2 Bb7 Rd1 Kc8 Rd2 Qf3 Kd6 Qe8 Rd1 Ndc6 Rd2 Kd8 Rd1 Ba8 Rd2 Qef7 Rd1 Ke8 Kc7 Nd8 Qb4 Bh8 Nb2 Qfg4 Be2 Bg7 Rd6 Ke7 Nd3 Qgf4 Bd1 Qe8 Rf5 Qf2 Qb5 Qf3 Rc5 Qff8 Re5+
rn3Q2/1q5r/qb2NR1B/Q3nQ2/2bK1Q2/3Qr1BQ/2r2bBb/2q1n1k1 w - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 Nc3 g5 Nd5 f3 Nf4 b6 a4 b5 axb5 gxf4 Ra6 Nc6 Rb6 Nb8 Rg6 Qc7 Rh6 Qd8 Rh4 h6 g5 h5 Rg4 hxg4 Kf2 Ke7 e4 Ke6 h4 Ke5 c4 d5 b6 a5 c5 f5 b5 g3+ Ke1 f2+ Kd2 f3 Kd3 a4 b7 f4 c6 g2 g6 a3 b6 a2 g7 a1B h5 Rh7 h6 Qe7 c7 Nf6 g8Q Ng4 Qg6 Be6 Ne2 g1B c8Q Bh2 Bh3 f1R Qe1 f2 Qd2 f3 Nc3 Re1 Qd8 f1Q+ Qe2 f2 Bb2 Kf4 e5 Kg3 Bc1 Bg7 Kd2 d3 Bg2 d4 Na4 Bc4 e6 Qg1 Qf6 f1Q Qf5 Ne5 Nc5 Bb2 Qee4 Re3 Qc7 Qd7 e7 Bf6 e8Q Bd8 Qeh5 Ba1 Qfh3+ Kf2 Ne6 Bb2 Qc5 Ba3 Qa5 Bc5 Bf3 Qb5 Q5f5 Qg7 Rg1 Qa6 Rg6 Bc7 Rf6 Kg1 Bg2 Qf4 Kd1 d2 Kc2 d3+ Kc3 d1R Qd5 d2+ Qdd3 Nbd7 b8B Rf1 b7 d1N+ Kd2 Nf2 Kc3 B7b6 Bc7 Rd1 b8Q Rd2 Qf8 Qe7 Qg3 Qg5 Qgf4 Nb8 Bd6 Qeb7 Bc7 Rd7 h7 Ra2 h8Q Rh7 Qh6 Rae2 Qhh3 Bd4+ Kb4 Rc2 Qf8 Nf3 Be5 Ng4 Bd6 Nge5 Bc7 Rce2 Bd2 Bdc5+ Kc3 Ne1 Bd6 Rg3 Bc7 Bf2 Bc1 Rge3 Bd6 Bd8 Kd4 Bb6+ Qc5 Qh5 Qff3 Re4+ Kc3 Qg5 Qa5 Nf7 Bg3 Ne5 Be3 Qg4 Bg5 R4e3 Bh6 Ra2 Q3f4 Qd1 Nc5 Qc1+ Kd4 Bd8 Ne6 Rc2 Ng5 Bc7 Ne6 Bb6+
B2K1k2/Bb1n1b2/2p5/3Q2pN/B2Br1Br/2b2Q1q/2nbQ1Rn/b3rB2 w - - 0 1 legal: proof: f4 a5 b4 d5 bxa5 g5 g4 f5 c4 dxc4 e4 Nf6 a4 fxe4 f5 h6 Ra3 Kf7 Rf3 Ke8 Nc3 Ng8 Nd5 Qd6 Nf4 Qd4 Rg3 gxf4 g5 Qd6 g6 Qd8 Rg5 hxg5 Kf2 e5 h4 b5 d4 c3 g7 e3+ Kf3 e4+ Kg4 b4 d5 e2 d6 e1N d7+ Kf7 f6 f3 Kf5 f2 h5 e3 h6 e2 h7 b3 a6 c2 a7 b2 a5 b1B a6 Ng2 Nh3 e1B Qe2 Bb7 Nf4 Qc8 Rh2 Qe8 d8Q Bc3 Be3 Nd7 Nh5 Ne1 Rg2 Ba2 Bb6 Rb8 a8B c1B a7 Nc2 Bd4 B1d2 Bc5 Bc8 Bc6 Bb7 a8B Qe3 Ba4 c6 Ba7 Ba1 Qa5 Bfb4 Qd5+ Ke8 Kg6 Nh6 g8B Bbc3 Be6 Ng4 f7+ Kf8 Bf5 Nh2 Bg4 Qg3 Kf5 Bb3 Ke6 Qh3 Kd6 Re8 Kc7 Re4 Kd8 Rg8 h8B Rg7 Qa5 Rh7 Qd5 Bc4 Bhd4 Rh8 Nf4 Rh4 Nh5 Qd3 Qb5 Qg3 Qe3 Bd5 Bc4 f1R Qa5 Rd1 Bf1 Re1 Qe2 Be6 Qd5 Qh3 Nf6 Kg7 Nh5+ Kh7 f8Q Bg8 Qf6 Bf7 Qff2 Kg8 Qff3 Kf8
RNq2n1N/p4Nrq/pk3r2/8/2q1B2Q/qn2N2Q/rb2Nr2/1b3NQK w - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 h6 f4 exf4 a4 g6 a5 g5 a6 bxa6 g4 Kd7 Ra3 Ke7 Rc3 Ke8 Rc4 f3 Rf4 Be7 Bb2 Bd6 Bf6 gxf4 g5 Bc5 g6 Bf8 Bg5 hxg5 Kf2 Kd7 h4 c5 d4 Kc7 e4 f5 b5 c4 g7 c3 d6+ Kb6 e5 c2 d5 c1Q e6 g4 e7 Nh6 e8Q Qa3 g8N Bg7 h5 Nd7 Qde1 Bb2 Nd2 Nf8 Ne2 g3+ Kg1 g2 d7 f2+ Kh2 g1R d6 f3 Qe6 f4 Ne7 Rhg8 Nf5 R8g7 Bg2 f1R Ne3 f2 Qh3 Nf5 h6 f3 h7 Nd4 h8N Nb3 Qb1 Qe7 d8N Bf5 d7 Qe8 Qe1 Bb1 Ndf7 Qc8 Qd1 Rb8 Qc1 Rb7 d8Q+ Rc7 Qdh4 Rc6 Qe1 Rf6 Qd1 Re1 Qc1 f1Q Qd1 f2 Be4 R1g4 Rg1 Rg2+ Kh1 Kc5 b6 Kb5 b7 Kb6 Nf4 Qfc4 b8N f1Q Ne2 Qff5 Ndf1 Rf2 Rg5 Qh7 Rd5 Qcf5 Rd8 Qfc8 Qc1 Rd1 Re8 Rd2 Qe1 Rfg2 Qeg3 Rgf2 Qg1 Rc2 Qd7 Q8c5 Qdh3 Be5 Nc6 Ra2 Ra8 Bb2 Nb8 Qc8
1QR1NN2/1p1q4/R2q4/1QpnK3/p1p1bQ2/b1rN1R2/4b1k1/R1R2rbn w - - 0 1 illegal: No proof kernel
1Kn1Q1b1/Q1r1n2B/pp5R/1B3B2/1N6/nk2b2Q/r2bQ1b1/1B3Qbb w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 a4 a5 b4 Ra7 b5 Nh6 Ra2 Nf7 Rb2 Nh6 Rb4 axb4 a5 Ng8 a6 Ra8 a7 Rh5 Qe2 Rh3 Qd1 Rh8 c4 Rh3 d4 Rh5 c5 Nf6 b6 Rh6 c6 Nh5 Be3 Rh8 Nd2 Nf6 Nb3 Ng8 Nc5 Rh5 Na6 bxa6 b7 Rh7 Bf4 Rh8 Bd6 Rh5 Bc5 Rh8 Bb6 cxb6 Qf3 Qc7 Qd3 Qd6 Qd1 Qc5 dxc5 Rh3 Qd5 Rh5 Qd1 Rh8 Ke2 Kf7 Kd3 g5 Kd4 e5+ Kd5 b3 f4 b2 h4 b1B c7 e4 c6 e3 f6 g3 f5 g4 h5 e2 h6 e1N h7 g2 Qf3 g3 Qg4 Bh6 Kd6 Be4 Bb5 Ne7 Nf3 g1B Nd4 g2 Qe2 Bge3 Nc2 g1B Nb4 Bg2 Rh4 Rf8 h8Q Nc2 Rh2 Bhg5 Qh3 Na3 Rh1 Bd2 Rh2 B5e3 Rh1 Kg8 f7+ Kg7 Rh2 Kf6 Rh1 Rh8 Rh2 Rh7 f8Q+ Rf7 Qe8 Bh1 Qef3 Rg7 Qff1 Rg2 Qeh5 Rf2 Qhe2 Kf7 f6 Bg2 Ke5 d5 Kd6 Be6 c8B d4 c7 Nbc6 b8Q d3 Bd7 Bb3 Bf5 Nc8+ Kd7 N6e7 Bh7 Bh1 Qb7 Rb8 a8B Bbd5 Qa7 Bdg2 Bae4 Rb7 Qhg4 Be1 Kd8 d2 Bb1 d1B Rh6 B1d2 Qh3 Bc2 Kd7 Bf5+ Kd8 Ke6 f7+ Ke5 f8Q Kd4 Qg8 Be6 Qe8 Bg8 Kd7 Kc3 Kd8 Nd6 c8B Rc7 Bcd7 Kb3 Bdf5 Rc5 Kd7 Ndc8 Kd8 Rc2 Kd7 Ra2 Kc7 Rf4 Kb8 Rc4 Re6 Rc5 Rh6 Rc7
r1r4n/2Q1Rr1N/Q3bB1p/2Q3bp/3q4/3Q1Nb1/1k1nbN2/Nb1n1N1K w - - 0 1 legal: proof: b4 b5 e4 c5 d4 cxd4 h4 f5 h5 g6 Bd3 gxh5 e5 e6 Be4 fxe4 a4 d3 axb5 Qb6 Ra6 Qc7 Rd6 Qd8 Rd5 exd5 Qf3 d4 Qg4 Ba6 Qd1 Bc8 Kf1 Kf7 c4 Ke6 f4 d5 g4 a5 Kg2 a4 c5 a3 f5+ Kd7 g5 d2 e6+ Ke7 g6 Kf6 e7 Ke5 e8N h6 g7 a2 f6 a1B f7 d3 c6 Kd4 c7 e3 b6 e2 b7 e1R b5 Bd7 c8Q Re7 b6 Nf6 g8N Nc6 b8Q Be6 b7 Ne5 Qbc7 Ng6 b8N Ne4 Na6 Bc3 Qe2 d1N Bb2 d2 Nef6 Rd7 Nc5 Bd6 f8Q Rf7 Rh2 Bg3 Nh7 Qf6 Qe3+ Kc4 Qf3 d4 Kh1 d3 Re2 Qd4 Ngf6 Rg8 Re1 Nh8 Qa6+ Kb4 Qfd6 Rgc8 Ba1 Bb2 Ng4 Ba3 Nf2 Bc1 Nd7+ Kb3 Qdc5 Qd5 Be5 Qd4 Bf6 Kb2 Re3 Ndc3 Re1 d1B Nd2 Be2 Nf1 d2 Qfd3 d1B Nf3 Nd2 Qcf5 Qb4 Nc5 Bc2 Nb3 Bb1 Qfc5 Qd4 Na1 Nd1 Qdf5 B2c4 Re3 Be2 Qfd3 Nc4 Re5 Bg5 Re4 Nd2 Re5 Bb3 Re7 Be6
N3Bn1Q/2b2qp1/Krr1Q3/R2Q1n2/1NNQb1k1/2p2q2/N2qQ2n/1n2n3 w - - 0 1 illegal: No possible last move, all moves rejected
1n1N1qb1/p3Rr2/2Nr2Q1/QNkbNQQ1/p1p4K/8/nr6/bQ2Br1b w - - 0 1 legal: proof: b4 b5 f4 d5 a4 bxa4 g4 e5 c4 exf4 cxd5 h5 Bh3 f3 g5 g6 Bf5 gxf5 Ra2 Ba6 Rc2 Bb7 Rc4 Bc8 Rh4 f4 Rg4 hxg4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 e5+ Kd7 g6 c4 h5 Nh6 e6+ Kd6 g7 Qe7 g8Q Qf7 b5 Bg7 e7 Be6 e8Q Qf8 b6 Nf7 h6 Nd8 h7 Ndc6 b7 Nb4 Na3 Na2 Bd2 Be5 Qg7 Bg8 Qg5 Bg7 Qb1 g3+ Kf1 f2 Kg2 f1R Kh3 f3 Be1 f2 Qeg6+ Bf6 Kh4 f4 Nf3 g2 Ne5 g1R Qbf5 f3 Nb5+ Ke7 Qb1 Rg2 d6+ Ke6 d7 Kd5 d8N Bg7 Na3 Bf6 Qbf5 Kd6 d5 Kc5 Nec6 Ba1 Rg1 Nd7 Nf7 Rd8 Nfe5 Nb8 d6 Rd7 Nb5 Rf7 d7 Rh2+ Kg3 Rh6 Q6h5 Re6 d8N Rd6 Rg2 Rh1 Qgg6 f1B Re2 f2 Qhg5 Bg2 Re3 Rg1 Kh4 f1B Re4 Bh1 Re2 Na6 b8Q Bfg2 Qc7 Bf3 Qa5 Bd5 Qb1 Bhe4 Q6f5 Bh1 Ng4 Nc3 Kh3 Na2 Re7 Rf1 Nge5 Rh6+ Kg3 Rh2 Kg4 Rb2 Kh3 Rf6 Kh4 Rd6 Qgg6 Nb8 Qgg5 Bgf7 Qgg6 Rg8 h8Q Rg7 Qhh6 Bg8 Qhg5 Rf7
2Q1R1R1/p1Q1p3/KpQR3Q/n4b2/bq1Bp1R1/2r1br1n/1Q1b4/1bN4k w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 a5 gxh4 a6 Nc6 axb7 Nb4 b8R Na6 b4 d5 c4 Bb7 c5 Kf7 b5 Nb4 b6 Ke8 Bc4 dxc4 Nc3 Bc8 b7 Na6 Nd5 Nh6 Nb6 cxb6 Qf3 Ng8 Qe2 Kf7 Qd1 Ke8 Ke2 Kd7 d4 Ke6 f4 Kf5 g3 Kg4 c6 h5 d5 h3 d6 h4 f5 h2 d7 c3 f6 h3 f7 c2 c7 Nc5 Ra5 Nh6 Qd2 Nb3 Bb2 c1B Rd5 Na5 Rd6 Qe8 d8Q Qb5+ Ke3 Qb4 Bf6 Bf5 c8Q Bg7 f8Q Nf7 Qc4 Ng5 Kd4 Bh6 Ne2 Kf3 g4 Kg2 Qb2 Bd2 Qc7 Rg8 Rb1 h1B Re8 h2 b8Q Nh3 Nc1 Be3+ Kd5 Rg7 g5 Rf7 g6 Kg1 g7 Bg2 g8R h1B Qbb7 Rc8 Bd4 Kh2 Qc7c6 Bf1 Qbc7 Bd3 Qh6 Bf3 Qa6 Bd1 Ra1 Rd8 Qac8 Bb1 Ra3 Kh1 Rb3 Bf2 Rbg3 Ba4 R3g4 Bfe3 Qb5 Nc4 Kc6 Rf6 Kb7 Na5+ Ka6 Rd7 Qcc6 Rc7 Q6b7 Rc3 Qbc7 Bg6 Qbd7 Rf3 Qdc6 Bf5
q4n1R/2rn1R1R/p5NR/2n3B1/1kpB2B1/4p3/1K2pnpp/2B1Rb1B w - - 0 1 legal: proof: c4 b5 b4 f5 a4 bxa4 e4 fxe4 b5 Nc6 b6 Nb8 Nc3 c5 Nge2 a6 Nb1 Ra7 Ng1 Rc7 Bd3 Rc6 Be2 Rc7 Bf1 Rc6 d4 Rf6 Ra2 Rf3 Ra3 Rb3 Ra1 Rb5 cxb5 Kf7 Ke2 Ke8 Kd2 Nf6 Ke1 Ng8 h4 g5 h5 c4 Qg4 Bg7 Qd1 Be5 Qd3 Bd6 Qd1 Bc5 dxc5 Kf7 Bb2 Kf8 Bc1 Ke8 Qg4 h6 Qh4 Bb7 g4 Bc8 Nd2 Nc6 Ndf3 gxh4 g5 Nb8 g6 Kf8 Ng5 hxg5 Ra3 Ke8 Ra2 Nc6 Ra1 Nb8 Kd2 e5 Kc2 Ke7 f4 d5 g7 a3 h6 g4 f5 d4 f6+ Ke6 h7 Kd5 f7 g3 f8R e3 c6 Kc5 b7 e4 c7 a2 b6 e2 Bg2 h3 Rf7 d3+ Kb2 e3 Nf3 d2 Ne5 Qe8 Ng6 Nd7 b8B Ne7 g8R Kb4 b7 Qd8 Rb1 a1N Rgg7 Nb3 Ba7 Nbc5 b8B h2 Re1 Bb7 Bh1 Bg2 c8B Bf1 Bf4 g2 Bg5 Rf8 h8R Rg8 Nf4 Ng6 Rgh7 Ngf8 Ng6 Rg7 Rh6 Qe8 R8h7 Qe4 Bb6 Qa8 Rh8 Ne4 Bd4 Nec5 R6h7 Nf6 Bg4 N6d7 Rh6 d1N+ Ka2+ Ka5 Rb7 Nf2 Ra7 Kb4 Kb2 Nb8 Rf6 Rc7 Rf7 Rc6 Rae7 Nbd7 Rfh7 Rc8 Ref7 Rc7
bk2Kn2/R2r1Nn1/3NNb1q/3N3q/2r2R2/1b2Rr1N/q1nR2BR/5nn1 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 g5 b5 axb5 f3 Be3 h6 Qd3 g6 Qf5 gxf5 g6 f4 Bf2 Be7 Bh4 Bf8 Bg5 hxg5 Kd2 f5 Kd3 a5 Kc4 d5+ Kd3 Kd7 b4 Kc7 e4 g4 c4 f2 h4 f3 c5 g3 e5 f4 c6 a4 e6 g2 h5 a3 g7 a2 h6 Ne7 g8R Rh7 Rg6 Nd7 b6+ Kb8 b5 Bb7 Rf6 Nf5 e7 Bg7 e8N Ra4 Nh3 g1N Nc7 Qg8 Ne6 Ba8 b7 Nf8 Bg2 f1R Rh2 f2 Nc3 f3 Re1 a1N Re3 Nc2 c7+ Ka7 c8N+ Kb8 Nd6 Rc4 Rf7 Bf6 Re7 Rf7 h7 Qg5 h8N Qh6 Rc7 Rd7 Nhf7 Re7 Kd2 d3 Rd7 d4 Nd5 Ra1 Rc7 f1Q Rd7 f2 Rd8+ Ka7 b8R Qb1 Rbc8 Rb7 Rc7 Qa2 Rcd7 Rf1 b6+ Ka6 Re7 Rd7 b7 Ka7 b8R Ra1 Rb1 f1N+ Kd1 d2 Rc1 Nf3 Ke2 d1B+ Kd3 Ng1 Ke4 d3+ Nd4 Rc3 Ne6 d2 Rb1 Rc8 Rb4 Rc1 Ra4+ Kb8 Ra7 Rb1 Rf3 Rb3 Rf4 Be2 Ree8 d1Q Re7 Bc4 Ree8 Ba1 Re7 Rc3 Ke5 Bb3 Ree8 Qdh5 Re7 Ng6+ Kf6 Re3+ Nd4 Rf3 Re3 Rb7 Rd7 Rc3 Ne6 Rc4+ Ne5 Bd4 Kf7 Bb2 Ke8 Nf8+ Nef7 Bf6 Re7 Rbc7 Rd3 Rd7 Rd2 Rd3 Neg5 Rg3 Re3 Rf3 Ne6 Ng7+
N1Bb2Rr/BN5b/nB3r2/2pr3k/2nNr2n/1B1q1nr1/1N2N3/3Kb1B1 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Qa4 f5 Qb3 f4 e4 h5 Qf3 gxf3 g4 Ke7 g5 Ke8 b4 Ba6 Ra3 Nh6 Re3 Ng8 Re2 Bc8 Rg2 Qd5 Rg3 Qd8 Rg4 hxg4 d4 a5 h4 c5 d5 f5 h5 Kf7 d6 f2+ Ke2 g3 h6 Kg6 e5 c3 e6 g2 b6 f3+ Kd1 f4 d7 a4 h7 a3 e7 a2 e8N a1R b7 Ne7 b5 R1a3 b6 R8a4 Be3 Re4 Ne2 g1N Nc7 Nf5 Na8 Na6 b8B Be7 b7 Nh4 Ba7 Kh5 Bh3 f1N b8N f2 g6 f3 g7 Nd2 g8B Nc4 Nd2 Bb7 Nc6 f1R+ Kc2 f2 Ncd4 Ngf3 Rg1 Rd1 Bf5 Qc8 d8B f1R Bdb6 Qd8 Bc8 Qd5 Rg3 Bd8 Bg1 Bc6 Bge6 Be8 Rg8 Bg6 N2b3 Rf2 Na5 Rd2+ Kc1 c2 Nb7 Qd6 Nb5 Rd5 Nbd4 Ng5 Bf7 Rg3 Bfe6 Rf6 Bf7 Na5 Kd2 c1B+ Kd1 Ngf3 Bfe6 Rde5 Bb3 Bh6 Nc3 Bf5 Na4 Rd5 Nb2 Bd2 Rg4 Rhf8 h8N Be1 Rg8 Bh7 Ng6 Nc4 Nf4+ Kh6 Rg4 Rh8 Ne2 Kh5 Rg6 Qf4 Rg4 Qe3 Rg8 Qd3+
1b1n3Q/1rBBnK2/qr5B/1r1n2B1/1qBb1N1q/kr6/6Nr/1b1B2QN w - - 0 1 legal: proof: f4 h5 a4 c5 d4 cxd4 h4 g5 g4 b5 axb5 gxf4 b4 e6 g5 e5 Ra3 e4 Rf3 exf3 Rh2 Qc7 Rg2 Qd8 Rg4 hxg4 Kd2 Ke7 Kd3 Kd6 Ke4 a5 Kf5 d3 c4 a4 e4 d2 b6 a3 b7 a2 b5 Kc5 g6 Kb4 h5 a1Q c5 g3 h6 g2 b6 f2 g7 f3 h7 d5+ Kf4 f5 c6 d4 Ke5 f4 c7 d3+ Nc3 Qh4 Bb2 Nc6+ Kd5 Nd8 b8B Qa3 b7 Bf5 c8N Bd6 e5 Ra6 e6 Rb6 Be2 f1R e7 f2 e8B f3 Nh3 g1B Nf4 Bc7 Nd6 Ne7+ Ke5 Be4 Ba7 Bb8 g8B Bf5 Qc1 d1N Bc4 d2 Ng2 Bb1 Bd7 Ne3 Bd1 N3d5 Ne2 Re1 Bd4 f1Q Be3 f2 Bg5 Rb5 Bae3 Qa5 Qc2 Ka3 Nef4 Qb4 Qg6 Qd3 Bh6 f1R Qg3 Rb6 Qh2 Bf2 Qg1 Re2 Bg5 Rg8 h8Q Rg7 B1a4 Rc1 Bd1 Rc3 Bh6 Rb3 Bg5 Ba7 b8B Rh7 Bc7 Bb8 Nf5 Rb5 Bc2 d1R Ng3 Rh6 Nh1 Rhb6 Bh6 Rdd2 Bd1 Rdb2 Nh3 Red2 Beg5 Be3 Nhf4 Rb7 Ne1 Rh2 Neg2 Qg6 Be8 Qa6 Bd7 Nb6+ Kf6 Nbd5+ Kg7 Bd4+ Kf8 Re2 Ke8 Re6 Kf8 Reb6 Ke8 Ndc6 Kf7 Nd8+
bB4BR/3Bn1R1/8/bBK1B2Q/1Q1Brr2/q3r1R1/b1k3q1/r2rn1nn w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 h4 Ke4 b4 a5 c3 f5 g6 d5+ Kb3 a4+ Ka3 d3 e3 g3 g7 f2 b6 d2 h5 g2 c4 g1N b7 f3 h6 d4 c5 f4 c6 d3 c7 Nc6 b8R Nd4 h7 Qd6 Qc2 d1B Bh3 f1Q Rh2 f2 Bd2 f3 Bd7 Ne7 g8B Bb7 c8B Qg2 Qc5 f1N b5 f2 Kb4 a3 b6 a2 Bb5 Ra3 Bcd7 Bb3 Bc3 d2 Rh3 d1R Rg3 Ba8 b7 Ndf3 Bd4 Ne1 Rd8 Bc4 b8B Kd3 e4+ Kc2 e5 Re3 e6 Bg7 Rb1 a1R Rb3 Bf6 Rg7 Ng3 Rd3 f1R Rc8 Nef5 e7 Rf4 e8Q Nh1 Qh5 Ne7 Be5 Ree4 Rdg3 Bh4 Re8 Qd3 Qd6 Ba2+ Kc5 Qe3+ Qd4 Qa3+ Qb4 Bf6 Bge6 Rf8 h8B Re3 Bg8 Rfe4 Bd4 Rf7 R7g4 Bh4 Bhe5 Rff4 Rg7 Bg5 Bd5 Bf6 Rh8 Bg5 Bg8 Bh4 Bc3 Bf6 Bed4 Be5 Bb2 Bc7 Be5 Bd8 Bbd4 Ba5
1n4b1/R1Bb1Q1r/2k1qn1R/2b1pBrR/1Bqr4/3RpqQ1/2R1nR2/K7 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 f5 Bh6 Nh3 Bf8 Nf4 h6 Nd2 gxf4 Nf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 Kd2 d5 b4 Kd7 h4 e5 c4 a5 Kc2 e3 Kb1 d3 h5 g3 h6 f3 h7 g2 f6 g1N c5 d2 c6+ Kd6 b6 d4 b5 a4 f7 f2 b7 a3 g6 d3 g7 Ra5 c7 Qf6 b6 Nh3 Qe1 d1B Bd2 Qf3 Bb4+ Kc6 Bg2 f1Q Qg3 Ng1 Rh6+ Nf6 g8Q d2 Bh3 Qc4 Bf5 Be7 f8R Rd5 Qf7 a2+ Kb2 Rg8 h8R Bd7 R8h7 Rg5 c8R+ Kb5 Rh5 Ne2 R7h6 Rd4 Rc7 Qe6 Rc2 Bc5 Rd8 Kc6 Rf8 Na6 b8B Qfd5 b7 Qc4 Bc7 Nb8 Rc3 Ba4 Rd3 d1Q Rc1 Qh1 Ka1 Qf3 Rcc3 Bb3 Rc2 Na6 Ra8 Nb8 Ra7 Nc3 Kb2 a1R Rf2 Re1 Rc2 Re2 Ka1 Rh2 Rf2 Na6 b8R Ne2 Rb5 Nb8 Rba5 Rh3 Ra2 Rhh4 Rc2 Rh3 Rg6 Ba2 Rh8 Rh7 Rh6 Bb3 Rh5 Rhg7 R8h6 Rh7 Qg8 Ba2 Qf7 Qb5 Rh3 Qe8 Qh5 Bg8 Qf7 Qc4 R3h5 Qee6
Q5R1/1p1rQ1q1/R1K1p2q/4N2R/n3k1qb/Q3rNqr/nR1R2b1/q4R2 w - - 0 1 illegal: Other
1r2n3/Nkr4Q/1n2RQ1R/3bqNp1/1RNN1Nbr/K2n1N2/1p6/2b1q1n1 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 g3 Nc3 exf6 Nb1 f5 Qb3 f4 Qa4+ Nc6 Qd1 Nb8 Bb2 Qe7 Bd4 Qe5 Bf2 Ra5 Qa4+ Ke7 Kd1 gxf2 g4 Kd8 g5 Be7 g6 Qg7 Bh3 Qf8 g7 Ra8 Bf5 Qe8 Kc2 Bf8 Bg6 hxg6 Kc1 Ke7 Qc2 Qd8 Qd1 Ke8 Kb2 Kd7 e4 f1N d4 c5 a4 Kc7 h4 b5 d6+ Kb7 a5 f5 e5 g5 d7 c4 h5 f3 d5 b3 e6 f2 e7 f4 e8N f3 h6 b4 h7 Ng3 d6 f1R Qd4 f2 Ra4 Ne2 Na3 Nf6 g8Q Qc7 Ng7 Rc1 Nf5 f1Q Nf3 Ng1 Rh6 Ne8 Qf6 Qe1 d8R Qce7 Nc2 Nd7 Ncd4 Nb6 d7 Rb8 Qgg6 Q7e5 a6+ Ka8 a7 Kb7 a8N Rc3 Qgg7 Bc5 Nc2 Be3 Ncd4 Rc1 Nc7 Bd2 Nb5 Rc3 Na3 Bc1+ Ka1 b2+ Ka2 Rc2 Qgf7 c3 Nc4 b3+ Ka3 Q5e2 Rb4 Qe5 Qh5 b1B+ Nb2 Rf8 h8N Ba2 Ng6 Rh8 Nf4 Rh7 Qh3 Rh2 Qh5 c2 Qhf7 Rh4 Qh5 Be3 Nc4 c1N Qhg6 b2 Qgf7 Nd6 Re8 Nd3 Re6 Bc1 Qh5 Ne8 d8N+ Kc7 N8c6 Kb7 Na7 Rc7 Ncd2 Bd5 Nc4 Bd7 Qhg6 Ba4 Qh7 Bd1 Nh2 Bh5 Nhf3 Bg4
R1b5/2k1pB2/2bRrBq1/p3Q1Q1/3R4/3qbRRB/3q3r/Kbr1Br2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a3 b5 a4 bxa4 Bd3 d5 Qg4 f5 Qe2 Na6 Qf3 Nc7 Bf1 d3 Qg4 d4 Qd1 Nd5 exd5 Bb7 Bf4 Ba6 Bc1 Bc8 g4 h6 f4 Qa5+ Nd2 Qb4 g5 Nf6 gxf6 Qb8 Ne4 fxe4 f5 h5 Nh3 Qb6 Nf2 Qd8 Ng4 hxg4 Kd2 Kd7 h4 g5 c4 a5 b4 a3 f7 a2 c5 g3 c6+ Kd6 c7 g4 b5 g2 f6 g1Q b6 g3 b7 g2 b8Q Bd7 c8B+ Qc7 h5 Ra6 h6 Qh2 h7 Rb6 Qh5 Bc6 Rg1 Bh6+ Qg5 e3+ Kd1 d2 Kc2 e2 f8R e1R f7 Rb1 Bh3 Re6 Bc4 d3+ Kc3 d1B Bd2 Bc2 Be1 Rc1 Kb2 Kd7 d6 d2 Qbb5 d1B Ra8 Bf3 f8R Qd8 Qbe5 Bg4 Rf3 Qf4 Rb1 a1R Ba2 Qd2 Bb3 Rg8 h8B Qd3 Bf6 Rh8 Bb4 Rf1 Rd1 Rc1 Be1 Bb1 Ka1 Rh7 Qgf5 Be3 Qg5 Qb5 Rd4 Qd3 Ra7+ Kc8 Ra8+ Kb7 d7 Qd2 Rh1 g1Q Bc4 Qg3 Rg1 Qd3 Rd6 Kc7 Ba2 Qg6 Bd5 Qh2 Rgg3 Qd2 Bb3 Qc8 d8R Qa6 Ba2 Qad3 Rd4+ Rd6 Bf7 Bc8 Qe4 Re6 R8d6 Rh8 Qee5 Rh7 Bf5 Rhh1 Bh3 Rh2
N1Q1qQnQ/5RK1/1n5N/1n3R1R/n2n2r1/rQ3b2/Rn1p2kb/q1Q1b3 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 Kd3 Ke7 Ke4 Ke6 h4 f1Q c4 f5+ Kd3 Ke5 b4 a5 c5 d5 c6 a4 b6 f3 h5 Kf4 b5 Kg3 g6 f4 h6 f2 c7 a3 b7 f3 g7 a2 b6 Kg2 h7 g3 Nc3 Qe8 Nb1 Ra3+ Nc3 Na6 b8Q Bb4 b7 Bg4 c8R Nc7 Nh3 Nb5 Qc1 Qe1 e4 f1N e5 f2 e6 Bf3 e7 Nh2 Qc7 f1N b8R Ne3 Ng5 Nc4 Rb7 Nb6 Nf7 Ba5 Ra8 Qg1 Rb1 a1N Nh6 Nb3 Na4 Be1 Qc8 Nc5+ Kc2 Qf8 e8Q d3+ Kb2 d2 Rf7 Qe7 Qf8 d4 Ra5 d3 Ra1 Qe8 Ra2 Na8 Nb6 d1N+ Kb1+ d2 Kc2 Qd4 Rf1 Qa1 Rh1 Nf1 Rh5 Na4 Rhf5 Ndb2 Rh5 Nac7 Na8 Nh2 Rhf5 Nd5 Rh5 Nge7 g8Q Ndb6 Rhf5 Kh1 Rh5 g2 Qg3 Rg8 h8Q g1B Qgh3 Bg4 Qb3 Kg2 Rhf5 Bf3 Rh5 Nd1 Kd3 Rg4 Rhf5 Ng8 Rh5 Be3 Rhf5 Bf4 Rh5 Nbc3 Kd4 Ndb2 Rag5 Be2 Re5 Nb5+ Ke4 Bd1 Kf5 Nf3 Rd5 Bh2 Rc5 Rh4 Kg6 Nfd4 Rcf5 Bf3 Kg7 Rg4+
1Rb5/B2Q4/Qbp1R1n1/B1br1q2/1q5n/K5n1/B1krRR2/rrB2R1b w - - 0 1 illegal: No possible last move, all moves rejected
5QQ1/2kN1nr1/QN2Qpp1/1Q5n/1r1nN3/bbN3q1/R1rK3n/2n1rR2 w - - 0 1 illegal: No possible last move, all moves rejected
nR5Q/Kb3Q1r/b2B1BB1/bk1p3R/1p2n1p1/2r1p1qB/Q1Q4p/b3Q3 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 c5 dxc5 axb4 Qf3 g6 Qd1 g5 g4 h6 Nf3 Rh7 h5 Rh8 Nh4 Ra6 Nd2 Ra3 Ndf3 gxh4 g5 Ra5 g6 Ra8 Ng5 hxg5 Ke2 d5 Ke3 Kd7 Kd4 Kc6 c4 b5 f4 e3 a4 h3 a5 g4 h6 e6 f5 e2 h7 e1B f6 b3 a6 b4 f7 b2 a7 b1B g7 Bg3 Qe1 Qe7 Bb2 Nh6 g8Q Kb7 c6+ Kb6 c7 Bb7 c8Q Bd3 c5+ Kb5 c6 Nd7 c7 Qd6 Rh2 Be7 f8B Nb6 Qf7 Ng8 Ra4 Rb8 a8Q Bd8 Ra1 Nf6 Qa2 Ne4 Bg2 Rg8 h8Q Rg7 Be7 Qf4 Bd6 Rh7 Rc1 Ra8 Rh1 Ra3 Rc6 Na8 Rb6+ Ka5 Bc3 Bda6 Ba1 Nc3+ Kc5 e5 Qcf5 e4 c8B e3 Qfc2 Bgh4 Bf5 Bhf6 Bg6 Qg3 Bb2 Bc8 Rb8 Ne4+ Kc6 Bg7 Bf6 h2 Bh3 Bc7 Rf1 Bb6 Rf5 Bcb7+ Kd7 Kb5 Re5 Ba5 Rh5 Nb6+ Kc7 Rd3 Re8 Na8+ Kb8 Ra3 Ka7 Rc3 Rb8 Rc4 Bfe7 Ba1 Bf6 Rc3
3n2b1/q1b1bk1q/1nBQ3B/1p2K3/n7/QrBQ1q1n/Q1r4N/2q1NNN1 w - - 0 1 legal: proof: g4 a5 a4 d5 c4 g5 cxd5 e5 f4 gxf4 h4 h5 b4 axb4 g5 e4 Rh3 Nh6 Rf3 Ng8 Raa3 Be6 Rg3 Bc8 Rg4 hxg4 Rf3 exf3 Kf2 f5 d4 b5 e4 c5 h5 c4 g6 b3 d6 c3 h6 b2 d5 c2 e5 Nf6 a5 Qd7 a6 Qh7 g7 Nc6 g8Q Be6 a7 Nd8 Be2 Rc8 a8Q Nd7 Qd3 Nb6 Nd2 b1N Nf1 Nc3 Qa3 Nca4 Be3 Bf7 e6 c1B e7 Rc2 Bd2 Bb2 Bc1 Be5 Be3 Kd7 e8N Be7 Bd2 Qg7 h7 g3+ Ke1 g2 Kf2 Be6 Qf7 Rf8 h8B Qh7 Bg7 Rg8 Bh6 Rg3 Bc3 Rh3 Qf8 Bg8 Nf6+ Kc8 Ng4 Kd7 Qg7 Ke8 Ngh2 Rg3 Qh8 Kf7 d7 Bc7 Qhd4 Rh3 Q4c4 Rg3 Qca2 Rh3 Ke1 f2+ Kd1 f3 d6+ Ne6 d8Q f4 d7 Rg3 Nh3 g1N Qb8 Bcd8 Qbd6 Bc7 Qa1 Nd8 Qb1 Rb2 Qba2+ Rb3 Kc2 Rg2 Ng3 f1Q Kd2 f2 Bf3 Qb1 Bc6 f3 Ke3 f1Q Kf4 f2 Ke5 Qfc1 Ngf1 Ne2 Ng1 Nf4 Ngf3 Qa1 Ne1 Nde6 Be4 Nh3 d8N+ Ke8 Nc6 Kf7 Nd4 Nd8 Ng4 Rh2 Ndf3 Rg2 Bc6 Rh2 Ng3 f1Q Ng1 Qf3 Nf1 Rc2 Ngh2 Qd2 Bd4 Qac1 Bb2 Qa5 Bc3 Qa7
B1Q3nQ/1rq1pb1Q/bRb1nB1B/1Q4R1/1Kr5/Rp6/3b4/1Bbrn2k w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 f5 g4 fxe4 f5 Bh6 Nc3 Bf8 Nce2 h6 Nf4 gxf4 Nf3 h5 g5 Nd7 Ne5 Nb8 Ng4 hxg4 a4 Kf7 d4 b5 Kd2 c5 h4 f3 h5 g3 a5 f2 h6 g2 d6 g1R g6+ Kf6 g7 Kg5 h7 Kf4 a6 Kg3 a7 b3 Kc3 c4 f6 e3 d5 e2 d7 e1N d6 b2 f7 b1B Rh4 b4+ Kd4 b3 Kc5 c3 Bb2 c2 Rh5 c1B Ra3 Bb7 Kb4 Qc7 d8R Bc6 d7 Bg6 Rg5+ Kh2 Qe2 Kh1 Qb5 Rg3 Bf6 Rc3 Bc4 f1B Bd3 Be2 Bb1 Na6+ Ka4 Rc8 a8B Nc5+ Kb4 Ne6 Re8 Bgh5 d8Q Rb8 Qc8 Rb7 Rd8 Bd3 Rd6 Bf1 Qb6 Ba6 Qb5 Nh6 g8Q Bg6 Qg7 Ng8 Qh6+ Bh5 Qg6 Bh6 f8B Bd2 Qf5 Bf7 B8g7 Bce8 Rb6 Bc6 Rg6 Bhe3 Rg5 Bc1 Qfd3 Bed2 Bf8 Nh6 B8g7 Rd8 Bf8 Ng8 Bh6 Be3 Qdf5 Rd1 h8Q Bed2 Qfh7 Rc4+
q2bknB1/3b1p2/2QR1Bnr/2b1B3/3QQqp1/q1r5/KbR2B2/4Qb1R w - - 0 1 illegal: No possible last move, all moves rejected
nrR1Bq2/B3bQBn/2p4r/3rRp2/B2rbQb1/1R3RQr/5K2/3b3k w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 Nf3 h6 Nc3 h5 Ne4 Qh4+ Nf2 gxf3 g4 Qf6 g5 Qd8 Ng4 hxg4 e4 Ke7 b4 Kd6 h4 Ke5 h5 a5 g6 a4 b6 f2+ Ke2 g3 b7 c3 g7 g2 h6 g1R d3 a3 b5 a2 h7 f3+ Ke3 c2 b6 c6 Rh3 Be7 Qe1 Nf6 g8Q Na6 b8R Rg4 b7 Qf8 Ba3 c1R Bc5 Rc2 Ba7 Nc7 Rd1 a1R d4+ Kd6 d5 Ke5 d6 Ra5 d7 Rd5 d8R Rc3+ Bd3 f1B Kf2 Kf4 e5 Be2 e6 Bd7 Rd2 Bd1 Bb5 Rcd3 Rbc8 Rb8 Rb2 Na8 Rb3 Rg6 Qc3 R3d4 Ba4 Rh6 Re8 Ke4 Qc4 Kf4 Qg3+ Ke4 Kg1 f2+ Kg2 f1B+ Kf2 Bg2 Qf1 Rg8 h8B Nh7 Bg7 Rh8 Rf3 Bf6 e7 Bg4 Red8 Bh4 e8B Be7 Qc4 f5 Rb3 Re5 Rd5 B2f3 Rc5 Bh1 Qf7 Red5 Qh4 Kf4 Rhe3 Be4 Qg3+ Kg5 Qf4+ Kh4 Rcc3 Bef3 Re5 Kh3 Qe3 Kh2 Qf4+ Kh1 Rce3 Be4 Rf3 Nc7 Qg3 Ra8 b8Q Rh3 Qb7 Rb8 Qb4 Na8 Qd2 Ng5 Qe3 R8h6 Qef4 Nh7
3r1Bk1/1np5/qB2pr2/bNp5/4QK2/Nq1b1NnQ/1nB2B2/1r1q1Q1Q w - - 0 1 legal: proof: e4 b5 c4 g5 a4 f5 axb5 fxe4 f4 d6 c5 dxc5 g4 h6 b4 Bf5 h4 Be6 f5 Bc8 Ra3 Be6 Rf3 Bc8 Rf4 gxf4 g5 h5 Rh2 Nd7 Rg2 Nb8 Rg4 hxg4 Ke2 Kf7 d4 a5 b6 f3+ Ke3 g3 d5 a4 g6+ Kg7 f6+ Kh6 b5 f2 h5 e6 d6 g2 d7 a3 f7 Kg7 b7 a2 b6 a1Q Na3 Qd4+ Kf4 Nf6 Bd3 f1Q+ Nf3 g1R Bc2 Qa6 Be3 Qb4 Bf2 Rh6 Qf1 Nc6 b8N Na5 b7 Qb3 Nc6 e3 b8B e2 Ba7 e1N Bb6 Ne4 Ncd4 Nb7 Ndb5 Ng3 Qh3 Be7 f8B+ Kg8 g7 Bh4 Qh1 Rg6 h6 Bf6 Qh3 Bc3 Qf1 Ba5 h7+ Kf7 h8Q Rf6+ Ke5 Rb8 Qh1 Kg8 Qfh3 Rg6 Kf4 Nd3+ Ke3 Nb2+ Kf4 Rb1 Q1f1 Qe8 d8Q Qd7 Qdh4 Qd1 Qh5 Bd7 Q5f5 Rd8 Qe4 Bc6 Qfh1 Bd5 Q3f1 Bc4 Qhh3 Kf7 Qhh1 Bd3 g8Q+ Ke8 Qgh8 Kf7 Q8h4 Kg8 Q4h3 Rf6+
r2qR3/QRq4b/3n1Q2/p1RQ1b1r/1NnN4/N2bQp1k/1p6/RKn1b3 w - - 0 1 illegal: No possible last move, all moves rejected
b6b/RpnR2Q1/2rrR2R/K3RBpp/R7/1Bpn3r/3b1BB1/1k2q1r1 w - - 0 1 illegal: Other
4R3/1N2n1kr/1rbbn1r1/R1N1K2R/1P2Q3/Nnp1B3/p2p1bBB/7b w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 b4 exf4 c4 Qg5 g4 hxg4 Kf2 Qd5 d3 Bc5+ d4 Qc6 b6 Qb5 cxb5 Bxd4+ Ke1 Bc3+ Kf2 Bd2 h4 Kf8 e4 f5 b7 d5 b6 c5 e5 a5 h5 g5 h6 a4 h7 f3 Kg3 a3 e6 a2 e7+ Kg7 e8Q f4+ Kf2 c4 Rh5 d4 Qe6 c3 Rh6 d3 Qe8 Nd7 b8B Ra6 b7 Rb6 Qee1 Nf8 Bc7 Ne6 b8R Ne7 Qe3 Bd7 Rh4 Bc6 Nh3 g3+ Kg1 g2 Kf2 g1R Rh5 g4 Ra8 Rg3 Raa5 Rg1 Qe4 Be3+ Ke1 g3 Nf2 g2 Na3 Bc5 Bb8 Bd6 Be3 Bc7 Qd2 Rh1 Rb1 g1B Bg2 Rg8 h8N Rh3 Nf7 Rh1 Nh3 f2+ Kd1 f1B Nf2 f3 Nd6 Rh2 Nb7 Be2+ Ke1 Bd1 Kf1 Bb3 Re1 Bbd5 Qf4 Rh4 Ne4 f2 Nec5 Bf3 Qe4 Rh2 Bh3 Bh1 Bg2 Rh4 Rf5 Rh7 Rh5 Rf8 Qd1 Rf6 Re2 Rg6 Re1 Bd8 Bh2 Bc7 Qb1 d2 Ke2 f1N Kf3 Ng3 Qd3 Ne2 Qd6 Nc1 Re2 Bf2 Re1 Nf8 Kf4 Nb3 Ke5 Ne6 Rf1 Bg1 Rf8 Bf2 Re8 Bxd6+
1n2NK1b/BrB1QR1R/1b2n3/r6n/1R2r1n1/1NrP1N2/p1r1k1B1/3q1b2 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 h4 g5 f4 exf4 b3 cxb3 Rh2 gxh4 Rh3 Nc6 Rh1 Nb8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 b6 c5 b7 h5 g5 a5 g6 f3 g7 f4 Ra3 h3 Qe1 b2 Nc3 b1R Qg3 h4 Bg2 f2 e4 f1R Nce2 f3 Qg4 a4 Ng3 h2 Rb3 a3 Qd7 a2 Ke6 h3 Kf7 f2 e5 Nh6+ Kg6 Nf7 g8N Rh4 e6 Bg7 e7 Bh8 e8R Ng5 Rf3 Ne6 Kf7 Ra5 Re7 Re4 Bb2 Rfc1 Nh6 f1N Rd3 Rc3 N3e2 Ng3 Nd4 Nh5 Re3 Rc2 Re1 Kd3 Rd1 c4 Rf1 c3 Ngf3 Rbc1 Nb3+ Ke2 Rhg1 h1N Ng4 h2 Nf6 Nf2 Ne8 h1R Kg8 Rh3 Rh7 Rb1 Qe7 Ng4 Rh1 Rg3 Rh4 Bd7 Ba3 Bb5 Bc5 Qd4 Ba7 Qg1 Rc1 Qd1 Rf7 Rbb2 Rb1 Nhf4 Rhh7 Nh5 Nfd4+ Ke1 Nc5 Rc1 Qd6 c2 Qe7 Rc3 Nf3+ Kf2 Qd8 Ba6 Qe7 Bf1 d3 Rb6 Rb4 Ke2 Ra4 Rb2 Rd4 Rcb1 Ra4 c1B Rd4 Nef4 Kf8 Rbc2 Rc4 Rbb5 Nb3 Be3 Rb4 Ne6+ Kg8 Nd7 b8B Rb7 Be5 Nb8 Bc7 Ng5 Kf8 Bg1 Nh2 Bb6 Nf3 Ne6+
Bb1R3R/P1q1b2n/2b1nnBK/b3bN2/5k1b/1r1p1nr1/1B6/1NRN2Q1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 exf5 axb4 d4 cxd4 g4 h5 Qf3 hxg4 Qa3 bxa3 Ke2 Kf7 f4 Kf6 c4 b5 h4 g5 a5 d5 c5 e5 h5 g3 Kf3 g2 Kg4 b4 h6 d3 Kh5 a2 c6 e4 h7 d2 c7 d1N a6 b3 a7 g4 Be3 b2 Nf3 g1B Rh3 g3 Bc5 d4 Nc3 b1N Bd6 e3 Bb4 g2 Rh4 e2 Ng5 e1B Ba5 d3 Nh3 Nd2 Rc1 a1B Nf2 Nc6 Nb1 Be7 Bc3+ Nd4 Bb2 Bd7 c8B Nc3 Nd1 Nce4 Be2 Be3 Bb7 Rb8 Ba8 g1B Bf3 Ng5 Bfe4 Ndf3 Rg4 Kf7 f6 Ke6 f5+ Ke5 f7 Ba5 f8Q Bef2 f6 Bc6 f7 Qc7 Qg7+ Nf6+ Kh6 Bh2 f8N Rg8 h8R Nh7 Bg6 Bh4 Ne6 Rb4 Rg2 Rb3 Rgc2 B2g3 Rc4 Bh2 Rb4 B2g3 Rb8 Bh2 Rd8 B2g3 Nc5 Kf4 Nb7 Ne6 Nd6 Bh2 Nf5 B2g3 Bf7 Bh2 Qg1 Rg3 Ba3 Be5 Bg6 Qb6 Bb2 Bb8 Qe1 Qc7 Qh1 Bg1 Qh2 Bd4 Qg1 Be5
rN2Q1b1/1q4n1/qBR5/2q2bB1/n2P1n2/3qRB2/1bk1pK1n/b1N2N1R w - - 0 1 legal: proof: c4 d5 b4 dxc4 e4 f5 b5 fxe4 b6 axb6 Ke2 b5 Ke1 b4 h4 g5 a4 gxh4 Ne2 b5 Nf4 b3 Ne2 b4 Ng1 Ra5 Qh5+ Kd7 Qd1 Rb5 axb5 Ke8 g4 Kf7 f4 Kf6 d3 h5 f5 Ke5 g5 Kd4 f6 c5 f7 e5 g6 e3 b6 h3 g7 h2 b7 e2 Ra7 b2 Kf2 e1N Ra3 e4 Qc2 c3 Ra6 e3+ Kg3 h4+ Kf4 e2 Rh6 h3 Kg3 b3 Na3 b1B Rf6 b2 Bh6 c4 Rf3 Ng2 Rf2 Nd7 b8R Nf4 Rb3 Qa5 Kf3 Qa6 Rg2 Nc5 Rg4 Ba2 Rb6 b1Q Rb7 Bf5 Bg5 Ne7 g8N Bg7 f8B Na4 Rb3 Bf6 Qd2 c2 Kf2 c1Q Bg2 c3 Bf3 c2 Nc4 Qa3 Rb6 c1B Qe3+ Kc3 Nb2 Qc5 Rc6 Kc2 Rg3 Bd4 Nf6 Bg8 Nd7 Be5 Nd1 Ba1 d4 Bcb2 Nc3 Qd1 Nb8 Qdd3 Be4 Ba2 Nf3 Bg8 Rb1 h1Q Nd2 h2 Na2 Nc3 Nc1 Na4 Nf1 Qf3+ Ke1 h1N Bd5 Qg2 Bf3 Nf2 Qe5 Ng4 Qe6 Nc8 Qe8 Nh2 Bd6 Qh1 Bc7 Nd6 Bb6 Qg2 Qd7 Qh1 Kf2 Ne8 Rh3 Ng7 Qe8 Ba3 Rb3 B3b2 Rh4 Qd1 Re3 Qdd3 Bh5 Qd5 Bf3 Qf7 Rg4 Qe7 Rg1 Qeb7 Rh1 Nc3 Qc8 Bb3 Nd7 Na4 Qd8 Ba2 Qe7 Rc8 Qe8 Ra8 Nb8 Bg8
1b1KB3/n2r1R2/b7/2N1PN2/R3n1rq/q1ppB2q/1k1q2Rr/3B1qQN w - - 0 1 legal: proof: f4 g5 a4 b5 axb5 e5 Ra4 exf4 Ra2 Bb7 Ra1 Bc8 d4 c5 h4 gxh4 c3 cxd4 Ra3 dxc3 Ra4 Be7 Ra1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 f5+ Kd4 h5 g4 d5 e4 h3 g5 f3 g6 h4 b6 h2 b7 f2 b5 a4 e5 a3 b6 f4 g7 f3 Qa4 a2 Qc6+ Bd6 Bc4 f1Q Qc5 h3 Bb3 f2 Na3 Rh7 Nc2 Nf6 Be3 Ne4 g8B+ Rf7 Bh7 Re7 Bg6 Ra6 Ne2 Ra4+ Bc4 Bc7 Rg1 h1Q Be8 h2 Ng3 Qh3 Rg2 Qc1 Nh1 f1Q Bg1 Qcf4 Ne3 Qfh4 Nf5 Rb4 Be3 Ra4 Rb1 a1Q Rb4 Qa3 Bb3 Qd6 Bd1 Qd8 Nf2 h1R Rc4 Rh2 Nh1 Nd7 b8R Ba6 b7 Nb6 Ra8 Nc8 b8N Na7 Nd7 Bd6 Rc8 Bb8 Rc7 Qff3 Kd3 d4 Qb6+ Kd5 Nc5 Rg7 Rf7 Qf1+ Kc2 Rg4 Qb1 Ra5 Ra4 Rb5 Qa1 Rb7 Qb1 Re7 Qc1 Qa1 Kb3 Qd6 Kb4 Qa3+ Ka5 d3 Qd2 Qdh6 Qf2 Q6g5 Kb6 Qf4 Ra5 Kc4 Qg1 Qf4f2 Nb7 Qc2 Ra4+ Kb3 Nc5+ Kb2 Bc6 Nb5 Be8 Qd2 Kc6 Re6+ Kd7 Re7+ Kd8 Na7 Bd7 Rg7 Bb5 Rg4 Be8 Rd7+
3qb2N/nB1RnB2/1PQrbr1K/2Rn1B2/4R2N/3N1pnp/5r2/1r3nk1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 b5 Be3 bxa4 Kd2 f3 Bf4 Be7 g6 Bg5 hxg5 exf4 Bg2 f2 Bh3 Nh6 Bf1 Ng8 b4 Ke7 c4 Kd6 e4 Ke5 g7 d5 g6 h5 c5 a5 c6 f5 c7 h4 b5 a3 b6 a2 Rh2 d3 Na3 Kd4 e5 h3 e6 f3 e7 a4 e8B f4 Qc2 Nc6 Rd1 a1N Rg2 Nge7 g8N Be6 c8R Rh6 g7 Rf6 Bd7 Ng6 Rc1 Na7 Qc6 Nc2 Re1 Ne3 Be2 f1N+ Kc1 f2 Nh6 Ng3 g8B f1N Nc4 a3 Bf3 a2 Rb2 a1R+ Rb1 Ra2 Bf7 Rf2 Ne5 Rb8 Rb5 Ra8 Rc7 d2+ Kb2 d1B+ Kc1 Bb3 Rc5 Ba4 Nd3 Rb8 Bc8 Rb7 Re7 Rd7 Bg4 Rd6 Rd7 Ke4 Nf3 Bb5 Nh4 f3 Bb7 Ba4 Nb2 Kf4 Bf5 d4 Re2 d3 Re1 Nd5 Re3 Bb5 Re4+ Kg5 Kd1 d2 Kc2 Ba4+ Kd3 Kh5 Kd4 d1R+ Nd3 Bb5 Bg8 Rb1 Nf7 Bc4 Nh8 Bf7 Ree7 Be8 Bf7 Kg5 Nb2 Kf4 Re2 Nh5 Nd3+ Kg3 Ke4 Kh2 Re1 Kg1 Re3 Nge7 Ke5 Nhg3 Re4 Nb4 Kf4 Be6 Kg5 Ng6 Kh6 Nd5 Rb5 Rd2 Ra5 Rf2 Rc5 Nge7+
nb5b/Bb2R2p/4QNB1/q1q3K1/1b1qr3/kP1R3p/1N2n3/bB2NR1b w - - 0 1 legal: proof: e4 a5 a4 c5 h4 b5 d4 cxd4 b3 bxa4 Ra3 g5 Ra1 gxh4 e5 Ra6 e6 Rb6 c3 Rb4 cxb4 fxe6 Ra3 e5 Ra1 e4 Ke2 e5 f4 Ke7 g4 Kd6 g5 h3 g6 e3 Kf3 a3 Kg4 e2 b5 Kc5 f5 Kb4 f6 e1B f7 d5+ Kh5 a4 g7 e4 b6 a2 b7 a3 Ba6 d3 Ne2 d4 Nec3 e3 Ne4 d2 Bb2 e2 Nbc3 d3 Na4 Nf6+ Kh6 Qb6 Nd6 Nh5 Bf6 Bg3 Nc4 e1Q Kg5 Nd7 g8B Qc5+ Ne5 Nf4 b8N Bb7 Rf1 Ne2 Nb2 Nb6 Nd7 Na8 Qc2 Bh2 Rd1 a1B Bb5 a2 Qc4+ Ka3 Qe6 Be7 f8R Bd6 Rd8 Bh1 Bf7 Re8 Rc1 d1B Bg6 d2 Bbd3 Bc2 Be7 d1Q Nf6 Qea5 Bde4 Qdd5 Rce1 Qdd4 Rd7 Bd1 Bb1 Bc2 Rd1 Bce4 Rd3 Bb7 Bd8 Bg3 Bb6 Bb8 Rc7 Be1 Re7 Bc3 Ba7 Bb4 Na4 Bac3 Nb2 a1B Rc7 Bbd5 Nf3 Re7 Ne1 Bb7+ Qd5 Re4 Re7 Qdc4 Qf5 Bce5 Qd7 Q4d4 Qe6 Bd5 Ne8 Bh8 Nf6 Bb7+
b3BRB1/2qq1RPQ/b1B4q/1Nb5/2Nb1b1r/5Rpn/p4n1k/1K1N1b2 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 cxd4 g5 bxa4 g6 e5 Bh3 e4 Na3 e3 Bf1 fxg6 Nb1 g5 Qd3 g4 Qd2 Qf6 Qd1 Qd8 h4 g5 Bd2 g3 Bh3 exd2+ Kf1 Qb6 Kg2 Qc7 Kf3 Qd8 Bf1 g4+ Kg2 Qg5 Nh3 Qf6 Ng1 Qd8 Ra2 a5 Ra1 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bh6 Nf3 Bg7 Ng1 Bf8 f4 Ke7 e4 Ke6 c4 h5 b4 d5 e5 Kf5 g6 h4 e6 a3 e7 a4 e8B d3 g7 d4 c5 a2 b5 a3 b6 Ba6 c6 Qc7 b7 Nf6 Nh3 Bd6 Ng5 h3+ Kg1 g2 Kf2 g1B+ Kg3 h2 Ne6 Rh4 Nc3 Nbd7 b8N Nh7 Qc2 d1Q Bg2 Qc1 Nd1 Ndf6 Nd7 Ng5 Nb6 Nh3 Nc4 Qe3+ Bf3 Ne4+ Kg2 g3 Kf1 Qc1 Ke1 d2+ Ke2 Be3 Kd3 Bc5 Rf1 h1B Bg2 Kg4 f5 Bh6 f6 Bf4 Rb1 a1B f7 Bb2 f8R Bc3 Rb3 Nef2+ Ke2 Bb2 Rf3 Bc3 Qh7 Ba1 Nc3 d1B+ Ke1 d3 Nd4 Bb2 Ndb5 Be2+ Nd1 Bbd4 Rf7 Qe3 Rf8 Qe6 Rf7 Qh6 Rf8 Qd7 c7 Qf7 c8B+ Qd7 Rg1 Bf1 Bb7 Qc7 Bbc6 Bfd6 R3f7 Bf4 Bgd5 Be4 Rh1 Kf3 Be6 Kg2 Rg1+ Kh2 Bed5 Bfg2 Rf1 d2+ Ke2 Ng4 Rf3 Ngf2 Be6 Bd5 Bcd7 Ba8 Bc6 Ng4 Kd3 Bf1+ Kc2 Ngf2 Kb1 Bb6 Ndc3 d1Q+ Ka2 Qd2+ Kb1 Bdc5 Nd1 Qdd7 Rf5 Bd4 Bg8 Bbc5 R5f7 a2+
4nN2/B1RRPrBQ/4b3/3n2KN/nk3q1p/1n2bR2/qNn2p2/1qB4n w - - 0 1 illegal: No possible last move, all moves rejected
BN1R4/N1P1nb1n/2R1b1RK/k2q4/1q1pq3/n6r/2NppQ2/r2B2rB w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Ba6 fxe6 Be2 e5 Bf1 e4 f4 Nc6 g4 Bh6 h4 Na7 f5 Nf6 Bf4 gxf4 g5 Nc6 g6 Bg5 hxg5 Nb8 Ke2 Ng8 Kd2 Qa5 Ke1 Qd8 Ke2 h5 a4 d5 c4 Kd7 a5 Kc6 f6 e5 c5 Kb5 g7 h4 f7 b3 f8R e3 Kf3+ e2 a6 b2 a7 h3 g6 h2 c6 d3 c7 e1Q Bh3 d4 Ra6 e4+ Kg2 d2 Bg4 e3 Kf3 Nf6 g8B Nh7 g7 Be6 Rc6 Ka5 Na3 b1Q Ne2 b5 Rg1 h1R Nc3 b4 Nc2 b3 Nb5 b2 Qe2 Bf7 Rg2 Rg1 Qf2 Qd7 Bh5 Qd5+ Kg4 f3 Rd8 Qe2 Kf4 Qec4 Rg3 Qb4 Rgg6 Qe1 Bg4 b1N Bh5 Be6 Bf7 Qe2 g8N Na3 Nf6 Qe1 Nd7 Qeb1 Qe1 f2 Bd1 f1B Qf2 Bc4 Be8 e2 Bf7 Bg4 Be6 Ba2 Bf5 Bc4 Be4 Be6 Bh1 Ba2 Rd6 Nc6 Nb8 Ne7 Rb6 Re1 Rc6 Bf7 Kg4 Rg1+ Kh4 Qdc4 Kh5 Qd5+ Kh6 Bc4 Ne3 Qbe4 Nc2 Qdc5 Nd6 Bce6 Nc8 Qcd5 Nd7 Rb8 a8B Rb5 Nb8 Rc5 Ne1 Rc1 Nc2 Ra1 Na7 Rg8 Rf6 R8g3 Rg6 Rh3+
RB1R3r/QKn2BqN/pqP1q2n/1b1Nq2r/4bb2/4Bp2/2pR4/k3N3 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 gxh4 c4 e5 Qc2 exf4 axb5 cxb4 c5 d5 Qc4 dxc4 Kf2 Kd7 Kf3 Ke6 Ke4 f5+ Kf3 Ke5 e4 Kd4 g4 h5 e5 c3 c6 b3 d3 h3 e6 h4 g5 h2 g6 b2 b6 h3 e7 c2 e8Q Rh5 g7 Qg5 b7 Bd6 Ra6 Nh6 g8N Qg7 Nc3 b1Q Qe7 Qb6 Nf6 Bd7 Ra3 Na6 b8B Nc7 Ncd5 a6 Nh7 Be8 Qd7 Bg6 Be3+ Ke5 Kf2 f3 d4+ Ke4 Ra4 f4 Bc4 Bf5 Ba2 Kd3 Qe7 Be4 Qf7 Ne6 Qa7 Nc7 Bb3 Bb4 Ra1 Bd2 Rd1 Qe5 Nb4+ Kc3 d5 Kb2 d6 Bc1 d7 Ka1 d8R Qe6 Nd5 Qe5 Ke1 f2+ Ke2 f1B+ Kf2 Qg7 Nf3 Bb5 Ne1 f3 Rd2 Qe5 Rg1 h1Q Rgg8 h2 Ba2 Qe6 Kg3 Qf1 Kf4 h1Q Rde8 Qhh3 Nb4 Bd5 Rh2 Ba4 Bd2 Nb5 Bc7 Qc8 Bd6 Be4 Bf7 Qbb8 Nd5 Qhf5+ Ke3 Qce6 Re2 Nc3 Kd4 Qfe5+ Kc5 Nb5 Bc7 Qd8 Kb6 Qg1+ Kb7 Qgg7 Bg5 Be3 Rd2 Rc8 Bh4 Ra8 Bf2 Bf4 Bd6 Qa5 Be3 Rd8 Re7 Rf8 Re8 Qb4 Ra8 Re8 Bb8 Nc7+ Qb6 Qbd4 Rf8 Bb5 Qa7 Rc8 Rd8 Qc5 Rd7 Rh8 Rd8 Qb6+
1Nnnr3/3RN1pP/6q1/bn3q2/1K2kBRp/1b4r1/4p1p1/B1Bn1QNR w - - 0 1 illegal: No proof kernel
nrq2bb1/Bp3Rr1/1nR1QBq1/1pP2B1k/1r6/2K2Nr1/1p4p1/RN2N3 w - - 0 1 legal: proof: e4 e5 b4 c5 d4 exd4 g4 cxb4 g5 f5 exf5 a6 g6 hxg6 Qd2 g5 Qd3 g4 Qb5 axb5 Kd2 Kf7 h4 g5 f4 d5 c4 g3 a4 d3 a5 b3 f6 Kg6 f5+ Kh5 a6 g2 a7 d4 f7 g4 f6 g3 Nf3 g1Q Bh3 b2 Ne1 Nd7 Bf5 Rb8 a8Q Nb6 Qa6 Na8 Qe6 Rh7 Ra6 Rg7 Rc6 Ne7 c5 Kh6 h5 Kg5 h6 Nd5 h7 Ndb6 h8B g2 Bh3 Kh5 Bf5+ Qh2 Rg1 Qg3 Rf1 Qg6 Rg1 Be7 f8R Bd6 Rf7 Bf8 Re7 Bd7 f7 Qc8 Rf1 Rh7 Bf6 Rg7 Kd1 d2 Kc2 d1R Bf4 d3+ Kc3 d2 Bc7 Nc4 Bb6 Be8 Ba7 Ncb6 Rf4 Bd7 Ra4 Be8 Ra1 Rc1+ Kd4 Rc4+ Kd3 Rh4 Kc3 d1R Rec7 Rb4 Rd7 Be7 f8N Bf7 Nh7 Bg8 Ng5 Bf8 Rf7 Rdd4 Ngf3 Rg4 Qd6 Rg5 Qe6 Rg3
K5bB/Bb2ppr1/2N2n2/QNRN1b2/4pR2/1k2ppqB/2R3P1/b3r2n w - - 0 1 illegal: No proof kernel
kb2N2b/n3B3/B4b1b/R1PnN2b/b2Q2rR/2qqq3/B1rb2N1/2nR3K w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 b5 f4 g5 Kf2 d5 Kg2 Kd7 h4 Kc7 c4 Kb7 a5 e5 h5 b3 f5 d3 h6 b4 h7 d4 f6 b2 f7 g3 c5 e3 Qe2 e4 Na3 b1Q Bd2 g4 Nc2 b3 Qd1 e2 Qe1 b2 Ra4 e3 Na3 Qg5 Nc2 Nf6 Rh2 Qa1 Bb4 b1Q Bd2 Rg8 h8N Qc3 Nh3 Bh6 f8R Nd5 Nf7 Bd7 Nf4 Nc6 Ra1 Na7 Rh5 Ba4 Kh1 g2+ Kh2 g1B+ Kg2 g3 Nh3 Bh2 Qf2 e1B Ra3 e2 Qf5 Qe3 Qf3 Rg4 Rh4 Bf2 Rh8 e1B Qe4 Rd8 a6+ Ka8 Bc1 d2 Ng1 d1B Kh1 d3 Qd4 d2 Nd6 Rb8 Rh7 Rb2 Rd7 Be2 Ra2 d1N Ne8 Bd2 Ne1 Qbd3 Ng2 Rc2 Nf3 Nb2 Rd6 Qdc4 Ra3 Nd3 Ne5 Bd1 Bb2 Nc1 Ra1 Q4b3 Bc4 Qa3 Ba2 Qed3 Rd7 Bfe3 Rd6 Beg5 Rd7 Bf6 Rd6 Nb5 a7 Qe3 Ra6 Qcd3 Ra5 Qac3 Rb1 Rf4 Qc4 Nb3 Nd7 Bh8 Ne1 Qf6 Be5 Bh5 Rd1 Rg4 Bd6 Nc1 Be7 Qb2 Qd4 Qbc3 Ndf6 Kb7 a8B+ Kb8 Bb7 Na7 Ba6 Ka8 Kg2 Re4 Nd7 Rg4 Kh3 g2+ Nf3 Bb8 Ne5 B6g7 Kh2 Bf6 Ne1 g1B+ Kh1 Bh2 Ng2 Bf4 Nc4 B4g5 Ne5 Bh6
1nr3n1/b1NB3n/bkr4N/R1qP3n/r4n1n/R3bRB1/3B2QN/q2q2K1 w - - 0 1 illegal: No possible last move
5Q1N/rRPb4/1N2bbn1/1b2N2B/q2r4/n3rRqn/1B1b2bq/KR1B3k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 Kb2 b5 a4 f5 h4 d5 h5 d3 h6 b3 a5 b4 h7 g3 a6 g4 c5 g2 a7 g3 c6 f3 c7 d4 Qe2 d2 Nh3 g1B Nf2 Kf4 e5 d3 e6 g2 e7 Kg3 e8N d1R Be3 f4 Na3 d2 Nd6 Bg7+ Bd4 Nf6 Rh2 Ng4 Be5 Bd7 Qe4 Qh4 Bc4 Nc6 Bc3 Nce5 Ndb5 Bf6 Qd5 Ng6 Be5 Rhe8 Nh3 f2 h8R f1B Bc3 f3 Bd4 f2 Rh5 Re3 Nf4 Bd3 Bc3 f1B Rh6 Nf2 Qc5 Nh3 Rb1 Qg5 Ka1 b2+ Ka2 B3f5 Bd3 Bfe6+ Nd5 Qg4 Nc4 b3+ Ka3 Kf3 Qf8 Qg3 Ndb6 Bf2 Rh1 g1Q Be2+ Kg2 Ne5 Be1 Nd6 Q1h2 Bh5 Bfc4 Rf1 Bcb5 Rf3 Kh1 Ra1 b1N+ Kb2 Na3 Rb1 Bf1 Ndf7 Bg2 Ka1 Bb5 Rc1 Bed7 Nh8 b2+ Ka2 b1B+ Ka1 Bbf5 Bb2 Bfe6 Rb1 Rb8 a8B Rb7 Rf2 Ra7 Baf3 Rc1 Be2 d1Q Rf3 Qa4 Bd1 Bc3 Qg8 Bd2 Qf8 Nh4 Rg6 Rc4 Rg4 Ng6 Rd4 Be8 Rd8 Rce4 Rb8 Rd4 Rb7 B8d7
n2q1N1n/1b2QbbN/rB4n1/PNqRb1B1/1b5q/KR3n2/6n1/R3rB1k w - - 0 1 illegal: No possible last move, all moves rejected
5KB1/n1N2N1R/2n5/3r1nn1/1b1qr1nB/Rr3q1B/2NRbPQq/1k1q2b1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 g4 Ke6 c4 Ke5 a4 d5 a5 h5 g5 b5 c5 h3 a6 h2 a7 h4 g6 b3 g7 b4 c6 d3 Ke3 d2 c7 d4+ Ke2 e3 Kf3 e2 Qc2 e1B Qa2 d1Q+ Ne2 b2 Nc3 b1N Bd2 h3 Qb3 d3 Bg5 d2 Na4 Nc6 Qb2+ Nc3 Ra3 b3 Nc5 Qd4 Qa1 b2 Ne4 b1R Nc5 Nb5 Ne6 Nf6 g8N Ba6 c8B Ng4 Nd8 Rh5 Kg3 Ke4 Nc1 e5 Nh6 Rb3+ Be3 Bd6 Ne2 Kd3 Nf4+ Kc2 Ndf7 e4 Qc3+ Kb1 Bc4 Rd5 Kh4 Qf3 Ne6 d1Q Bg5 e3 Kh5 e2 Kg6 Bd2 Qa5 e1N Nc7 B2b4 Bh4 Bg3 Bd7 Re8 a8R Nba7 Nf5 Re4 Ne3 Bb5 Nc2 Ba6 Rg1 h1N Rh8 Bh2 Rh7 Ng3 Qb6 Nf5 Qb7 Bb5 Rg3 Bg1 Qa8 Qf4 Rd3 h2 Rd2 h1Q Be6 Qhf3 Bf1 Nfh6 Bh3 Be2 Qg8 Qh2 Qa8 Rde5 Kg7 Nf5+ Kg8 Rc5 Kf8 Rd5+ Nd6 Nd3 Bg8 Nc5 Nf7 Ree3 Qd8 Ne4+ Qe7 Ng5 Qd6 Nce7 Qg3 Re4 Qg2 Nec6+
qnr1K1RB/B1Q2n1n/1Rn1k1n1/2r5/3r4/b2N2Nq/bb2PRB1/3N1q1q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 f5 h4 b5 c4 d5 h5 g5 c5 f3 Kg3 f4+ Kf2 g3+ Ke1 f2+ Kd2 g2 Kd3 g4 h6 f3 c6 g3 a5 b3 c7 b2 h7 b4 a6 b3 a7 Be6 c8R Nf6 Na3 b1N Nh3 g1B Bg2 f1Q Be3 b2 Bf4 f2 Rc3 Nd2 Rcc1 b1Q+ Rc2 Nf3 Bc1 Ng5 Qe1 Nf7 Bf3 g2 Rh2 Qb3+ Kd2 d3 Ke3 d4+ Kf4 d2 Nb5 d1R Qc3 d3 Rb2 d2 Ng5 Qa3 Be4 Ba2 Kf5 Qb3 Qa5 Qh3+ Kg6 Kd7 Bf3 Ba3 Ne4 Ke6 Nbc3 Qd5 Rbb1 Rc8 h8B Rc5 Ng3 Nh7 Qc7 Qe1 Be4 f1Q Rb6+ Qc6 Rab1 Bd4 R1b2 g1N Rf2 Be5 Bg2 Nf3 R2b4 Qfh1 Rg4 Nd4 Bb2 Qef1 Ba1 Rc1 Nd1 Rd5 Bb2 Rcc5 Bc3 Rd6 Ba1 Qb7 Rg5 Ndc6 Bd4 Qa6 Be3 Beb2 Bed4 Rdd5 Kg7 Nf6 Kf8 Nh7+ Ke8 Rd7 Rg8 Qa5 Nc3 d1N Be3 Rd3 Bed4 Ne3 Nd1 Nf5 Be3 Nh4 Bed4 Nd8 Be3 Na6 Bed4 Rb8 a8N Ng6 Qf7+ Kd6 Nc7 Rcc3 Nd5 Rc8 Rb5 Nab8 Nf4 Qa8 Ba7 Rd4 Nd3 Rc5 Qc7+ Ke6 Rb6 Nf7+
b1Kqr1rb/R3BBk1/5Nn1/r1brr3/2Rnn3/bN2B1QP/R7/qN3q2 w - - 0 1 illegal: No possible last move, all moves rejected
qQn2B2/2n4q/1rrn1nK1/NN3B1r/1b3R2/1q1RP1R1/bN2rn2/1bB4k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kd5 c4+ Ke4 h5 b5 a5 f5 e3 d5 h6 g5 c5 f3 Kg3 f4+ Kh2 f2 h7 g3+ Kg2 d3 a6 d4 a7 d2 c6 g4 c7 d3 Ba3 b3 Rh3 b2 Bb4 f3+ Kh1 g2+ Kh2 Na6 Kg3 Rb8 a8R Rb6 Rh1 Ne7 Kh4 g3 Kg5 Be6 c8N Ba2 Qe2 d1N Qd2 Nc7 Ba3 b4 Rh2 b3 Qe1 d2 Bb5 f1N Rh6 f2 Rd6 Nh2 Ba6 f1N Rf6 Ng4 Nh3 g1R Rd6 Kf3 Bb4 Kg2 Na7 Nf6 Na3 b1B Rd3 b2 Nc6 Nc8 Na5 Nf2 Nf4+ Kh1 Nb5 d1Q Kg6 g2 Be7 Rc6 Qb4 Qb3 Bb7 Rb6 Be4 Nd2 Bf5 Re1 Ra6 Nde4 Ra8 Bg7 Bf8 Re2 Rb8 Ned6 Rb7 Rg8 h8B Bh6+ Bhg7 Rh8 Ra7 Bg5 Ra6 g1R Ra8 Bc2 Rf1 b1Q Rb8 Rh5 Bh8 Nfd5 Bb2 Nf6 Bc1 Qe8+ Kg7 Qc6 Kg6 Qa8 Rb7 Ncd5 Rg7 Nc7 Nd5 Rc6 Ndc3 Rb6 Na4 Bf4+ Bg4 Be5 Qf4 Bc3 Nb2 Bd2 Qg3 Bb4 Bf5 Rc6 Rd4 Rb6 Rf4 Be4 Rd1 Rge1 Rd3 Rc2 Rf3 Ree2 Qe5 Rcc6 Qe8 Na7 Qb8 Nac8 Rf4 Qg8 Nbc4 Qb3 Nb2 Qh8 Rd5 Bc2 Rd3 Bcb1 Rh7 Rh2 Rh3 Qh4 Rg3 Qh8 Bd7 Rh5 Bf5 Qh7+
b1rb1r1r/NR6/RnBR2q1/2K3rr/3BnknN/5Pbr/1N6/r2Q1nB1 w - - 0 1 illegal: No possible last move
2Bnnr2/1q1Knnrr/b1Nn2k1/2bN1N1R/2RQ2r1/2q1Rn1q/1P1B1B2/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 Kd3 a5 h4 f5 c4 Kf7 e4 g5 c5 f3 e5 f2 c6 f4 c7 a3 h5 a2 h6 a4 e6+ Kg6 h7 g3 e7 g2 e8N f3 Nd6 a3 Rh2 g4 Nb5 g3 Qc2 Bc5 Rh5 Qd7 Qc3 Nh6 Qa5 Ba6 c8R Nc6 Qc3 Nd8 Bd2 Qb7 Rh1 Nhf7 Nh3 g1R Be3 g2 Be2 f1N Bd1 f2 Be2 Nd2 Bg5 f1Q Qb4 Nc4 Nf2 Ncd6 Rh3 Ne8 Kd2 d3 Kc3 d2 Rg3 d1N+ Kb3 d4 Kc4 d3 Re3 d2 Ng4 Nc3 Nh6 d1N Nf5 Nd5 Nc3 Ne7 Nd5 Nc3 Bh4 Qe1 Bf2 Ne4 Bg4 Qd2 Rd1 a1R Qa4 Rf8 h8B a2 Bc3 Ra7 Ba5 Qe1 Bd2 Rh1 Qb4 g1N Qc3 Rh2 Qd4 Nf3 Rb1 Rh7 Rc1 Bb6 Rc5 N4d6+ Kb4 Qh1 R1c4 Rg1 Ka4 a1Q+ Kb4 Ra8 Na7 Qh3 Nc6 Ra7 Ra5 Qc1 Rb5 Bc7 Kc5 Qc2 Nh6 Qc3 Bc8 Rg2 Nf5 Rg4 Ra5 Nb5 Ra1 Bh2 Rh1 Bg1 Rh2 Nbd6 Rh1 Qg3 Rh5 Qh3 Ncb4 N7g5 Re1 Rf6 Qd3 Qa8 Bd4 Rf8 Kb6 Rd7 Nc6 Ng8 Re2 Rdg7 Re7 Nef6 Kc7 Nfe8+ Kd7 Ngf7 Re1 Ne7 Qe4 Bh2 Bb6 Be5 Bf2 Bd4 Re3 Bc5 Qd4 Qb7+
Rr1B1R2/3bNr1K/1n1r2n1/1B4qB/Rb2n1q1/4kP2/N4n1n/2qrqQ1N w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Ke6 a4 Kf5 c5 h5 g3 e5 a5 d5 a6 b5 a7 d3+ Ke3 h3 c6 h4 c7 d2 Bd3 h2 Nh3 d4+ Ke2 b3 Rg1 h1R Qf1 d1R Bc4 b2 Nc3 b1N Bd3 b4 Ra4 b3 Qe1 b2 Rc4 Rh6 Be3 Rd6 Ng5 h3 Bc2 d3+ Kf1 h2 Kg2 d2 Kh3 Nd7 Kh4 Rb8 Kh5 Nb6 a8B Ne7 Rf1 Ng6 Bc6 Bd7 Na2 Nc3 c8N b1Q Nh3 Qc1 Ra4 Rg1 Bb1 h1N Bg5 Be7 Kh6 Kg4 Ra8 Kf3 Bb5 e3 g4 e4 Ra4 e2 Kh7 e3 Bh4 Ne4 g5 Bf8 Ne7 Rg4 B1d3 Rf4 Bdc4 Rf5 Bf7 Rff6 Rg1 Rf4 Qf1 e1N Rg4 e2 Ra8 Nd3 Be8 e1Q Bf7 Nhg3 Be8 Nge5 g6 Rf7+ g7 Ng6 Bg5 Nf5 Rh4 Ne3 Bf6 Ng4 Bg5 Rf4 g8R Nh2 Bf7 Qdc8 Rg4 Q8c5 Bh4 Qg5 Be8 Bg7 Rf8 Bc3 Bf7 Bb4 Be8 Ng3 Bf7 Ke4 f3+ Ke3 Be8 Ne4 Nf2 Rff6 Nh1 Ndf2 Qh3 Qg1 Rf4 Q1g4 Qf1 Re1 Bf7 d1Q Be8 Ne5 Bh5 Ng6 Rf5 Qe2 Rd5 Rd1 Rd4 Qe1 Rc4 Bd2 Rca4 Bb4 Bg3 R6d3 Bc7 Rdd6 Bd8 Rf7+
bn1K1NB1/1RB2R2/1N6/3rQ2P/2rb1nr1/rqn2B1N/n3b3/q1nk1bR1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 a6 f3 Kg3 b3 a7 Kb4 e5 b2 e6 d3 e7 f2 e8R d4 c5 f4+ Kg2 g3 Kf3 d2 Ke4 d3 Ke5 f3 c6 g2 c7 g4 Qe1 Kb3 Nc3 Kc2 Qe4 d1B Re6 b1N Rc6 b4 Bg5 b3 Be3 b2 Rc5 g3 Nd5+ Nc3 Qb4 b1N Rh2 d2 Nh3 g1R Qd4 g2 Ng5 Bb7 Ke6 Nf6 c8N Qb6+ Kf7 Qb3 Raa5 Bg7 Ke7 Be2 Ra1 d1R Ncb6 Rc8 Rb5 Rc4 Nc7 Na2 Rh1 Nd5+ Kd8 Nf4 Nce6 Nbc3 Nh3 Rd2 Qd6 Rd5 Nf8 Bd4 Bc1 Kd1 Rb4 Rg5 Qe5 Rg4 Rh2 Rh1 Rb5 g1N Bg2 f1Q Bd2+ Nb1 Ba5 f2 Bd5 Qe1 Bg8 f1B Rf2 Qec3 Nc8 Qc1 Bc7 Nbc3 Rb1 Rh2 Nb6 Bh1 Rb2 Qa1 Rd5 Rhg2 Rd6 R2g3 Rg6 Rd3 Rg7 Bef3 Rf7 Nge2 Rg2 Nec1 Rg1 Be2 Nc8 Qa4 Rb7 Qb3 Nb6 Na6+ Kd7 Rd8+ Ke7 Rd5 a8B Nb8 Ke8 Ra5 Kd8 Ra3 Ra7 Rd2 Be4 Bhf3 Rb7 Rd3 Bf5 Bc6 Be4 Rd2 Bf3 Be4 Ra7 Ba8 Rb7 Be3+ Ke7 Rd5 Ke8 Bd4 Ke7 Rb5 Kd8 Rd5+
rR4q1/1Q3B1q/2P2qB1/5q1b/1b3B2/1nN1rRNr/bNKb3k/Rr1nq3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 c4 Ke6 e4 Ke5 h4 b5 a4 g5 a5 f5 c5 d5 c6 g3 h5 d3 h6 d4 a6 g2 h7 f3 a7 Kf4 e5 Kg3 e6 g4 e7 f2 e8B f4 Be2 f1Q Na3 b3 Rh6 b4 Rh1 b2 Bd7 b1R Ra2 b3 Be8 b2 Qa4 f3 Rh5 f2 Rb5 Nf6 Nh3 g1R Rf5 Nd5 Rf3+ Kh2 Qb4 g3 Ng5 g2 Nf7 Ne3 Qb3 Bb4+ Qc3 Be6 Ne5 Nd7 Rf6 Nd1 Nb5 Nc5 Ra6 Ba2 Bg6 Qg8 Rf8 Rh1 Ra5 g1B Rf3 Qh3 Nc4 f1Q Ncd6 Qf5 Ne4 Re8 Ng3 Re3 a8N Qf2 Rf4 Qf3 Nb6 Nb3+ Ke1 Qf6 Na4 Qe4 Rf3 d2+ Kf1 Qee6 Bc4 Qef5 Bcf7 d3 Qc5 Ra1 Qa7 b1Q Nbc3 Qc2 Nge2 Rb1 Qb7 Bf2+ Ng1 Be1 Nb2 Qgg7 Ra4 Ra8 h8R+ Qh7 Rb8 Qc8 Ne4 Qcg8 Ng3 Qc5 Ra5 Qcf5 Ra4 Nf2 Ra7 d1Q Bd2 Qc1 Ra3 Nd1 Ra5 Re8 Bf4 d2 Ra4 Bf2 Ra3 Be3 Ke2 Re6 Bh6 Re4 Kd3 Bf4 N1e2 Bg5 Nc3 Re3+ Kc4 Kg1 Ra5 Re5 Qe7 Nf2 Qe6 d1B Qd6 Rh3 Rd3 Bh5 Rf3 Qe1 Qe7 Bd2 Qb7 Kh2 Bf4 Nd1 Ra6 Re4+ Kd3 Re2+ Nce4 Re3+ Kc2 Nc5 Ra5 Be6 Ra1 Bd5 Rf1 Ba2 Rf3 Qd7 Nc3 Nb3 Nc4 Qdc8 Nb2 Qcf5+
n1nQN2B/BR3r2/bPq2r2/5b1k/1KN3r1/1n1Rn1rr/1RN3b1/2bB1r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 b4 d5 h4 a5 c4 f5 e4 Kf7 b5 Kg6 c5 f3 c6 g3 b6 d3 Kc3 f4 e5 g4 e6 a3 c7 d2 e7 a4 e8R a2 Na3 f2 Bc4 f1R Nf3 d4+ Kb2 g2 Ne1 g1R Bb5 g3 Bc6 g2 Re2 d3 Kc3 f3 Re4 f2 Re3 Ba6 c8N Qd6 Re8 Ne7 Rh3 Bh6 Qc2 d1B Rg8+ Kh5 Rd8 d2 Bd7 Qc6+ Nc4 a3 Rd3 Bg4 Bf5 d1N+ Kb4 Ra7 Rc3 Ne3 N8d6 Nc8 Qd2 Rf7 Bc2 Bf5 Rb1 a1N Rb2 a2 Rd3 Nb3 Rd7 a1R Ne8 Ra3 Rb7 Rhf8 Bb1 Rh1 Bc2 g1R Bd1+ Rg4 Nc2 Bf4 Rd8 Rh3 Rd3 Kg6 h5+ Kg5 h6 Kh5 h7 Rf6 h8B R8f7 Bg7 Ng2 N4e3 Nd7 Rc3 Ndc5 Nc7 Na1 Bh8 Ne6 Ne8 Nc7 Qd7 Na8 Nc4 Bh6 Be3 Bg5 Bd4 Bc1 Re3 Rc3 Qd8 Nb3 Be5 Rd3 Bb8 Rc3 Re6 Rcg3 Ba7 Ne3 Re4 Rfh1 Rd4 f1B Rd5 Bg2 Rd3 Rf1
2qq2nN/1nNq1P1r/1b2n3/nQ1n1n1n/1Rb1rR1N/p3R1B1/K2k4/3B1B2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 g4 d5 b4 a5 Kb2 h5 g5 e3 f4+ Ke4 f5 e5 f6 d3 c5 e2 g6 e1Q b5 a3+ Kb3 h3 g7 d4 f7 a4+ Ka2 d2 c6 Ke3 c7 d3 b6 e4 b7 h4 Be2 h2 Nf3 h3 Qc2 Be6+ Qc4 Rh7 c8N Bc5 Rf1 h1N Na7 h2 Rf2 Ng3 Bb2 h1N Rf1 d1Q Nc8 d2 Nd4 Nh5 Nb3 Nc6 b8R Na5 Bf3 Bb6 Bc3 Nb7 Na7 N1g3 Be5 Nf5 Qb5 Bc4 Nc8 Qee2 Bg2 Qg4 Nc3 Qc1 Bh2 d1N Bg3 Kd3 Rf2 e3 Ne7 e2 Ncd5 e1N Rf4 Nde3 Nc7 Nd5 Ng6 Nc2 Nh8 Ncd4 Bf1+ Kc2 Rb1 Ne6 Rb2+ Kd1 Re2 Ra6 Re3 Qc2+ Ka1 a2 Nd4 Qd3 Kb2 a1N Nf3 Nb3 Nh4 a3+ Ka2 Kc1 Qe8 Ra4 Qb5 Ngh6 g8B Kd2 Be2 Qd4 Bd1 N3a5+ Bb3 Rg7 Bh7 Ng8 Bg6 Qc8 Bh7 Qg5 Bg6 Qgd8 Bh7 Nfd6 Bd3 Nf5 Be2 Rh7 Bf1 Be2 Bd1 Qdd7 Ne8 Qf6 Nc7 Qfd8 Ra8 Re4 Ra7 Nc4 Ra4 Nca5 Rb4 Bc4+
B1k1b3/1pb4R/r3q1BP/n3r2r/1bNK1N2/bb2n2q/b2N4/B1RR1Qb1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 h4 d5 a4 Kd7 c4 e5 f4 g3 h5 e3 Kd3 e2 a5 e1R a6 g4 c5 e4+ Kd2 e3+ Kd3 g2 a7 b3 f5 b2 f6 e2 f7 g3 Bf4 Qe7 Qa4+ Nc6 Qb3 Nh6 Rh3 Na5 Qa2 Ng4 Be5 Ne3 Qa3 Qe6 Nf3 g1B Bf6 g2 Qb4 Bh2 Ng5 g1B Qb3 Bc7 Na3 b1B+ Qc2 Be7 Nc4 Ba2 f8N+ Kd8 c6 Bd7 Qa4 Be8 Qd1 Kc8 Nf3 Ba3 Ng6 Rh7 Nf4 Rh8 Kd2 d3 Kc3 d2 Kd4 Rh7 Qb1 d1B Nfd2 Bdb3 Bg2 Rh8 Be4 Rh7 Bg6 Rh6 Kd3 d4 Rh4 Qh3 Ke4 d3 Kd4 Rf1 Qd1 e1B Qe2 Rf2 Qf1 Re2 Rd1 Rh7 Nb1 Beb4 Nbd2 Re7 Bh8 Re5 Bg7 Qe6 Rh1 Rh2 h6 Bcd6 c7 Rhh5 Bf6 Kd7 c8R Bc7 Nf3 d2 Rb8 Bf7 Rh8 Be8 Rh7+ Kc8 Rc1 d1Q+ Nfd2 Qdg4 Bh8 Rc5 Be5 Qh3 Bf6 Rb8 a8B Rc6 Kd3 Rb6 Ba1 Ra6 Kd4 Qg8 Rc2 Bh2 Nd6+ Kd8 Nd3 Bea4 Qf5 Qf7 Rb1 Bg1 Qf1 Kd7 N6c4 Re8 Rd1 Ree5 Rcc1 Kc8 Nf4 Be8 Rh8 Qg8 Rh7 Qge6
1nBQ2bn/r4R1r/1N2prk1/b1b1RnB1/6n1/N1n4n/1q2RPKB/N1q5 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 c4 g5 h4 d5 c5 b5 h5 e3 c6 e2 a5 b3 h6 b2 h7 d3 a6 d4 c7 b4 a7 g3 Na3 b1R Nh3 g4 Bg2 b3 Bb7 g2 Ra2 g1Q+ Kd2 g3 Be4 b2 Rh2 g2 Bb7 Kg6 Nb5 Nh6 Bf3 Nf7 Qe1 Be6 c8N Qb6 Qf1 e1B+ Kd1 d2 Ke2 d1N Bb7 d3+ Kf3 d2 Na3 Ne3 Ng5 d1N Rh5 Nf5 Qd3 Qb4 Nb6 Ne3 Bc8 Ng4 Ne4 Bc3 Bf4 Qc1 Nc5 g1N+ Kg2 Nh3 Bh2 Ra1 Qd4 b1N Qd8 Qbb2 Nb3 Ba5 Rg5+ Kh6 Rg7 Nc3 Rg5 Rb1 Rh5+ Kg6 Na1 Rg8 h8B Rg7 Rh7 Bc4 Rh5 Rh7 Bf6 Nh8 Bh4 Bg8 Bg5 Qb4 Re2 Qbb2 Nb3 e6 Na1 Rf7 Rh7 Rf6 Rf7 Bc5 N1c2 Ra1 Re5 Ra2 Na1 Nd7 Re2 Rb8 a8R Rb7 Rb8 Ra7 Rb7 Nb8 Rbd7 Rb7 Rd5 Rc7 Rde5 Ra7 Nb5 Ra4 Na3 Rb4 Nd7 Rbb7 Nb6 Rd7 Rf8 Rg7 Rf7 Rh7
3R1q1n/NN1r1P1r/n1KqN1B1/1nRn1pbQ/4kn1q/B3n1r1/b3B3/1R6 w - - 0 1 illegal: No proof kernel
2BN3b/4Rpn1/7q/b1r2P1k/r4R1b/nNBN2n1/BbqqbRK1/1b1Q4 w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 g4 h5 f4 c5 Kf2 e5 d4 b5 a4 e3+ Kf3 e4+ Kg2 b4 f5 c2 g5 e2 d5 e1B a5 e3 g6 c4 g7 e2 d6 b3 a6 c3 a7 h3+ Kf3 h4 d7+ Ke7 Be3 Kf6 Bf2 Kg5 Nd2 c1B Bb6 b2 Qa4 b1B Ra3 h2 Bh3 c2 Bg2 h3 Nb3 Kh5 Na5 Bh4 Qd4 e1B Rb3 Ba6 Qa4 Nc6 Bd4 Nf6 g8R Nb4 Ne2 Ne8 Bb2 Ng7 Bc3 Bb2 Rf1 h1N Nc1 h2 Nd3 c1Q Rf2 Nc2 Rb7 Na3 Qd1 Qc2 Nb3 Ng3 Rc7 Qg5 d8N h1Q Re7 Qh3 Bf1 Qgd2 Be2 Rc8 a8B Rc5 Bb7 Rh6 Bc8 Rd6 Rg2 Rd4 Rf2 Ra4 Bf1 Ne8 Rg4 Bg7 Bg2 Bh8 Rf4 Ng7 Bf1 Qg4+ Kg2 Bb5 Rf3 Qg6 Be2 Qgh6 Rf4+ Kg5 Bf3 Bc4 Bd5 Ba6 Nb4 Be2 Nd3 Kh5 Nd4 Qcc1 Ba2 Qdc2 Nb3 Bd2 Bf6 Ba5 Bc3 Q1d2
1n1q1qQq/BNp3b1/r1N2Pr1/1b1b2n1/3qR2r/3KN2q/R7/q1B1RB1k w - - 0 1 illegal: No possible last move
4N1nB/2q3N1/brR2nBk/2NR2b1/1Rb3Qn/Kp6/BbP1r1n1/2nq2r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 e4 b5 h4 d5 a4 f5 e5 Kf7 a5 Kg7 a6 f3 e6 d3 a7 g3 e7 f4 e8N+ Kh6 h5 b3 Kc3 g4 Kb2 d4 Ra3 b4 Bd2 f2 Rh3 g2 Rh2 g3 Ng7 Be7 Ra4 Ba6 Rh3 Bg5 Ra1 f3 Ra2 Qc7 Nc3 Nd7 Ne6 Ndf6 Nd8 Rb8 a8B Rb6 Be3 d2 Rh4 d3 Nh3 g1N Bd4 g2 Ra5 Ne2 Nf4 g1B Nfd5 Nc1 Ne6 Bc4 Bh3 f1N Ne4 f2 Ng7 Nh2 Be6 f1B Qg4 d1Q Nc5 d2 Bf7 Bf2 Bg6 Nf3 Bb7 Bfd3 Bc8 Ba6 Be6 Bdc4 Bc3 Bd4 Bef7 Qe7 Nc7 Qd7 Nce8 Qc7 Nb7 Rh7 Rd5 Be5 Nc5 Bd4 Rh1 Nh4 Re1 Rh8 Re6 Be5 Rc6 Rh7 Ka1 b2+ Kb1 Qg1 Bd4 d1N Bc3 Ne3 Be6 Nb3+ Ka2 b1R Ba1 Nd7 Nd6 Nhf5 Rd3 Bd5 Qe2 Qc1 Nge8 Re7 Nf6 Kg7 h6+ Kf8 h7 Kg7 h8R Ng2 Rh4 Qh1 Rc4 Kh6 Qg4 Nfh4 Nh5 Bc3 Bef7 Re2 Ne8 Bh8 Rf4 Rf1 Be5 Nc1+ Kb2 Bb3 Bc4 Bhf6 Rd5 Qg1 Bc3 Qd4 Re4 Qd1 Red4 Rg1 Rf4 Ba4 Ba2 b3 Rb4 B4b5 Ka3 Bc4 Be5 Be7 Bh8 Bef6 Nhg7 Bd4 Qh3 Ndf6 Qg4 Bb2+
1b2qq2/Q1N2B1K/r2B1N2/1B1b1NRr/2r1P3/1nk1q1p1/q4r2/RRbnq3 w - - 0 1 illegal: No possible last move, all moves rejected
2R2QnB/1B6/1kqb2q1/2r1P1B1/rq1q1NKb/1N2rpnR/2b4R/1qN1b3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc6 c4 g5 a4 b5 h5 f5 a5 d3 a6 d4 e5 b3 h6 d2 c5 b2 h7 b4 a7 d3 Ra2 b3 Ra4 g3+ Kf3 g2 Qc2 d1R Rc4 d2 Bd3 g4+ Kf2 g3+ Kf3 Qd4 Nc3 b1Q Rh5 b2 Rh1 Nd7 Na2 Re1 Qb3 d1Q+ Ne2 g1B Be3 g2 Qb4 Qb3 Nac1 Bf2 Rh3 g1B Bd2 Ndf6 Qc3 Ne4 Rg3 Qb4 Rg2 Ng3 Qc2 Bd6 Nb3 Qc1 Rh2 b1Q Be4+ Kb5 c6 Kb6 Kg2 f3+ Kh3 f4+ Kh4 Bd7 c7 Bf5 Bb7 Bg6 Qa2 Bc2 Kg4 Rc8 Qa3 Ra8 Nc3 Re3 c8R Be1 Na2 f2 Rc3 f1Q Rd3 Qg2 Rdc3 Qcb2 Nac1 Qc6 Rd3 Bgf2 Rc3 Ne7 Rd3 Rd8 h8B Ng8 Rc3 Bc7 Rd3 Rd5 Rc3 Qbd6 Rd3 Qf6 Qf8 Rc5 Rc3 Bd6 Rd3 Ne4 Rc3 Bh4 Rd3 Re2 Rdh3 f3 Bg5 Qg6 Qh6 Rb8 Qf8 Re3 a8N+ Kb5 Nd2 Qbb4 Nc7+ Kb6 Ne6 Ng3+ Nf4 Ra8 Ndb3 Ra4
2n2q1N/r6N/B2n1br1/bNP1rb2/1KRR2Bk/1Q3b2/1q1pq2B/4R1qb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Kf6 c4 Kg5 a4 f5 a5 d5 e5 b5 a6 d3 a7 f3 h3 d4 e6 f2 e7 f4 e8R g3 Re3 g2 Qc2 f3 Na3 b3 Re2 b2 Re6 b1B Rd6 b4 Bb2 b3 Be2 f1Q Qc1 f2 Nb5 Kh4 Bh5 g5 Bf7 g4 Ra4 g3 Rb6 Bg7 Bc3 b2 Ra1 Nc6 Ra2 Rh6 Bd5 Nf6 Ra4 Qf8 Qe1 Bb7 Qe6 Ne8 Be4 Bf6 Bf5 Rg6 Bg4 Ne7 Rc6 Nc8 c5 Ned6 Rc4 Bd8 Qd5 Ba5 Rc7 Bc2 Rd7 b1Q Qf7 Qb2 Rd8 Rb8 a8B Bd5 Bc6 Ra8 Bb7 Ra7 Ba6 Bf3 Ne2 g1Q Nf4 g2 Nh5 Bd5 Nf6 Bb7 Nh7 Bf3 Re8 Bd5 Re1 Bb1+ Kd1 d2 Rh2 Bf5 Qe6 Kg3 h4 Qd3 h5 f1R h6 Rf3 Rh5 Re3 Rh4 Re5 Nf6 Qe4 h7 Ba8 h8N Bc6 Rh7 Qee3 Rd7 Kh4 Qf7 Qd3 Nh7 Bce4 Rf1 Qdc2+ Ke2 d1B+ Ke1 d3 Qe6 Ne8 Rdd4 Ned6 Qf7 Bdf3 Bd2 Bb6 Bf4 Bd8 Bh2 Ba5+ Rc3 Qh1 Qe6 g1B Qb3 Be3 Rg1 Bg5 Rf1 Bf6 Rg1 Bb6 Rcc4 Qhg2 Bh3 Qg5 Bg4 Bh1 Rf1 d2+ Ke2 Ba5 Re1 Qh5 Ke3 Qcc1 Ke2 Be6 Ke3 Bef3+ Kd3 Qd1 Ree4 Qg1 Re1 Qa3 Kc2 Qb4 Kb2 Qc3+ Ka3 Bf5 Bh3+ Qhg4 Ka4 Qe4 Bg4 Qe2 Ka3 Qb2+ Ka4 Bb6 Kb4 Ba5+
q2Q1Rr1/bb3b2/n2K1bBB/1P6/2q2rnR/R2NqN2/1pkb4/r2Nr1B1 w - - 0 1 illegal: No proof kernel
4R1qN/q2Q4/BbbN1p2/4qq2/1r1nNRPk/2Br1Bb1/2n2n2/bRKq4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Ke7 d4 Kf6 Kd2 Kg5 a4 c5 g4 b5 e5 h5 a5 f6 e6 f3 d5 b3 d6 h3 d7 b2 a6 h4 a7 h2 e7 b4 e8N c3+ Ke3 b3 Qd2 f2 Bb5 f1Q Qg2 c4 Qh3 c2 Kd2 c3+ Ke3 Bd6 Ra2 Nc6 Ra3 Bg3 Ba4 Nd4 Bd2 c1B Bc6 c2 Bg2 Nh6 Ne2 Rb8 a8B Rb4 Nc7 Bb7 Bd5 Bc6 Bb7 Nhf5+ Kd3+ Ne3 Ba6 Qg8 Qg2 h3 d8R Kh4 Rg1 h1N Ra2 h2 Ne8 Nf2+ Kc3 h1Q Bc8 Qh2 Nf4 Qe2 Nd6 Rh7 Rf1 Rd7 Re8 Qg1 Be1 Qh2 Nd2 b1Q N2e4 b2 Ra1 Qa2 Qh1 Qa7 Ba6 b1Q Qg2 Ba3 Qf3 c1B Ng6+ Kh3 Nh8 Nec2 Qe3 Kh4 Qd3 Bcf4 Qb5 Be5 Qb7 Rd8 Qd7 Bc1 Ra4 Be3 Ra1 Qa2 Rb1 Qa5 Bb3 Qad5 Kb2 Qde6 Bc3 Qf5 Nb7 Nb5 Nbd6 Bb6 Kc1 Bed4 Bd2 Ba1 Bd5 Nbd4 Be1 Nh3 Rf4 Nf2 Ng5 Qee5 Bf3 Qg2 Nge4 Qf1 Ndf7 Qe2 Bc3 Ne6 Qc8 Rd3 Qd7 Ned4 Nfd6 Qd1+
n3NR2/1N1q1B2/q2n1p1P/6Qb/8/2Nk1nbr/RBnBr1r1/KR1nbb2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Ke6 Kd2 Kf5 Kc2 Ke4 Kb2 b5 h4 c5 e3 g5 a5 f3 d5 b3 a6 b4 a7 f6 d6 f2 h5 g3 d7 g2 Bd2 g4 Rh3 g3 Na3 c3+ Kb1 c2+ Kb2 c1B+ Kb1 b2 Qa4 c4 Nf3 g1R Ka2 b1N Qd1 g2 Nc2 c3 Rh1 Na3 Bb5 f1B Nh4 Na6 Rh2 Ne7 Nf5 Nc7 Be1 Bd2 Bc6+ Kd3 Nd6 Nf5 Rb1 b3+ Ka1 Rh6 Nd4 c2 e4 c1Q e5 Qc4 e6 Qa6 Nb7 Nd6 e7 b2+ Ka2 Rh7 e8N Nc2+ Ba4 Rb8 Qg4 Na8 Qg5 Rh8 Bf2 Be1 Ne2 Qe7 d8B Bg4 Bfb6 Qd7 Bd4 Rh7 Ba5 Rd8 Rc1 b1N Bd2 Nc3+ Kb2 Bh6 Rb1 Nd1+ Ka2 Re7 Nc3 Re2 Be5 Bf8 h6 Bh5 Bd4 Rh1 Be5 g1N Rg2 Qb6 Bb3 Rh3 Bf7 Nf3 Bd4 Rc8 Be5 Rc4 Rh2 Rg4 Bd4 Na3 Ka1 Rgg2 Be5 Qa6 Bd4 Nb6 a8R Bg3 Rd8 Na8 Bc1 Be1 Nc7 Ndb5 Re8 Ref2 Na2 Bd6 Rf8 Rg1 Ne8 Bg3 Bde3 Nd6 Nc3 Rb2 Rf2 Rg2 Rc2 Rb4 Ra2 Re4 Bed2 Ree2 Bb2 Nc2#
1b2n1Nr/k4brp/rn1b1Nr1/R2qR3/7B/2P1B1Kb/q1BQN1n1/4R1r1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 a4 b5 g4 e5 f4 d5 Kf2 Kd7 f5 Kc6 c3 Kb7 f6 d3 f7 b3 g5 b4 a5 h3 g6 b2 g7 h2 Na3 b1R Qd2 b3 Qh6 b2 Nc2 e3+ Kg2 e4 Qf6 d2 Nb4 d1R Bc4 e2 Qh6 e1B Qh5 e3 Kf3 e2 Nd3 d4 Be3 Be6 Qg5 Nf6 g8R Nbd7 Qf5 Nb6 Nf2 d3 Bb3 d2 Ne4 Qd5 Bc2 Ne8 Rg5 Bg3 Qh3 Bb8 Re5 Ra7 Qg2 Bfd6 f8B Bf7 Be7 e1N+ Kf2 Rbc1 Bh4 b1Q Nf6 Qb2 Ng8 Ra8 Ra3 Qa2 Ra4 Rb1 Ra3 Rb4 Ra4 Rg4 Ra3 Rg7 Ra4 Qe4 Ra3 Ra7 a6+ Ka8 Ra4 Rc1 Ra3 d1B Raa5 Qb7 Qd5 Rb1 Qd2 Rb5 Rc5 Bg4 Ne2 Ng2 Re1 h1R Rg5 Re5 Kg3 Re6+ Rge5 Rg1 Bd4 Qc6 Be3 Rb7 a7 Reg6 Rf1 Rd7 Re1 Kb7 a8N Qc5 Nc7 Qb5 Ne6 Qbd5 Rb5 Ka8 Ng5 Ra7 Ne4 Ra6 Nef6 Ka7 Ra5 Bh3+
n3r2N/n4P2/qRrb3B/1q1b3k/p1NN1br1/QB4rB/bqb3R1/R2K4 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 b4 Kg6 c4 d5 g4 h5 g5 a5 b5 e5 c5 d3 b6 a3 b7 d2+ Ke2 a4 c6 h3 c7 e3 Ra2 h4 f5+ Kh5 g6 d4 f6 h2 f7 d3+ Kf3 h3 g7 e4+ Kg3+ e2 Kf2 e3+ Kf3 e1B Qb3 d1B+ Re2 a2 Qb2 a1Q Qf6 d2 Qd4 Ne7 g8B Qd6 Na3 Nd7 b8N Rh6 Qh8 Bg3 Nb1 Qb2 Qf6 Qa6 Bg2 Bf4 Qg7 Rc6 Qg3 Nb6 Na3 Bc2 Bh7 d1Q Nd7 Qdd3 Ne5 Qdb5 Nac4 Be6 Ng6 Nec8 Nh8 Na7 c8R B8d6 Rb8 Bd5+ Be4 Be6 Rf2 e2 Bd5 e1R Ne2 Rg1 Rb7 Rd8 Nd4 Re8 Ke2 Na8 Bf1 Rg2 Qa3 Rg3 Rb6 Rg4 Rg1 h1B Rfg2 h2 Be3 Bg3 Bh6 Bgf4 Rf2 Bhe4 Bh3 h1R Ra1 Rhg1 Rh2 R1g3 Rg2 Bb3+ Ke1 Ba2 Kd1 B4f5 Na5 Bfb1 Bb3 Bd5 Nc4 Bc2+
1k1rR3/4P3/rqn2rn1/2NpN1r1/QB1BRb2/1B1r3b/nr4n1/n3RNK1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc7 c4 g5 a4 b5 h5 f5 a5 b3 e5 b4 h6 g3+ Kg2 g4 e6 d3 h7 d2 c5 b2 a6 b3 a7 Ne7 c6 Ng6 e7 Bh6 Rh2 f3+ Kh1 f4 Re2 g2+ Kh2 f2 Re5 f3 Qe2 d1R Nh3 g1N Rg5 g3+ Kh1 g2+ Kh2 Rd3 Qe4 Ne2 Be3 g1R Bd2 Nd4 Re5 Rg5 Nf4 Bh3 Bb4 Nc2 Nd2 b1R Ne6+ Kc8 c7 b2 Qc4 Nc6 Re4 Kb7 c8R Qb6 Be2 f1R Bd1 f2 Re8 Rd8 a8N Kb8 Qb3 Rf8 h8B Rf6 Qa4 Re1 Nc5 f1N+ Kh1 Nfe3+ Nf1 Ng2 Kg1 Ree3 Ra3 Na1 Bb3 Re2 Bg7 Rbd1 Ra2 b1N Rc2 Ref2 Rce2 Nc3 Re1 Rb2 Bh8 Na2 Bg7 Qa7 Nb6 Rc1 Nc4 Qb6 Ne5 Rcd1 Bc2 Ra3 Bb3 Rd3 Qb5 Ra7 Qa4 Ra6 Nf3 Rff5 Bd4 Rf6 Ne5 Rh5 Nb7 Bf4 Nc5 Rg5
rn1bN1BB/4kb1n/3R1rB1/5pRR/2rb1q2/5NP1/3nb1r1/1rrQKN2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 f5 e4 b5 a4 c5 e5 h5 a5 b3 e6 h3 e7 h2 d5 h4 d6 h3 a6 b2 g3 f3 a7 f2+ Kd2 b4 Ra4 b3 Qe1 c3+ Ke2 c2 Ra5 c4 Ra4 c3 Ra1 Nf6 Bh6 c1B Qd1 c2 Bg7 Nh7 Ra5 Be3 Qe1 c1R Bf6 Qc7 Bc3 Bd4 Ra4 Be6 Nf3 Bf7 Nbd2 b1R Rc4 b2 Qd1 Bh6 Bg2 f1B+ Ke1 Be2 Nf1 Bg5 Ra4 Kd7 e8N Rf8 Rb4 Ke6 d7 Qf4 d8R Ke7 Rd6 Rc2 Rbb6 Rbc1 Rg6 b1N Rbd6 Nd2 Bb2 Bh4 Rg5 Rc4 Bc3 Bb6 Bh8 Bd4 Ng1 R1c2 Bc6 Ra2 Nf3 Rb2 Rg1 h1R Rg2 Rg1 Rh2 Rb1 Rh1 h2 Bd5 Bg8 Bf7 Rg2 Bg6 Rf6 Rg1 Rf2 Rg2 h1R Rh2 Bf7 Rh3 Nd7 Rh2 Rg2 Rh3 Rab8 a8B Rd8 Bd5 Ra8 Rg4 Bg5 Rh5 Nb8 Be6 Bh4 Rgg5 Rb3 Qa1 Bg8 Rg4 Rf8 Bef7 Bhf6 Rgg5 Rhg1 Qc1 Rb1 Bd5 Rf7 Be6 Kf8 Bd5 Bd3 Kd1 Bd8 Be6 Ke7 Bd5 Rh1 Be6 Rhh2 Ne3 Rf6 Bef7 Re2 Nf1 Rhg2 Bd5 Re3 Ne5 Rf3 Ke1 Be2 Qd1 Rfc3 Nf3 Be6 Rg4 Rcc1 Rgg5 Bc8 Bdf7 Be6 Bg8 Bf7
q1N1N1QK/3rr1b1/1n1nR1r1/rkn3R1/p4r1n/qb3rBP/1BN5/1B3R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 a5 Ke4 d5+ Ke5 Kd7 e4 Kc6 b4 f5 c4 g3 c5 g4 h3 d3 Nd2 g2 Qe1 g3 Qe3 a3 Nc4 a2 Qe2 d4 Nb6 d2 Qf3 d1N Qb3 d3 Qe6+ Kb5 c6 f3 c7 a4 Ba3 f2 Qf6 f4 Rc1 a1Q+ Bb2 f3 Qh6 Nc3 Qh5 Nd7+ Ke6+ Nc5+ Kf7 Nd5 e5 Nge7 e6 Bg7 Qh6 Re8 Qg5 Nf5 e7 Ra5 Re1 Qa3 Ne2 g1R Qg6 Ba6 c8R d2 Ra8 d1R Nc8 g2 Rb8+ Kc4 b5 Nb6 Nd4+ Rd3 Be2 f1R Nc2 f2 Qh7 Bb7 Qg8 Nd6+ Kg6+ Bd5 Kh7 Be6 Bf3 Bf7 Be4 Rf3 Re3 Rd1 Bg6 f1R Re6 Rf4 Be4 R1f3 Bf5 Nbd7 b6 Kb5 b7 Nb6 Ra8 Rd5 b8B Rd2 Ra6 Rdd3 Rg6 Bb3 Rg3 Rc1 Bg6 g1N Rg5 Re1 Bc7 Re6 Be4 Rg6 Bf5 Rf8 e8N Rf7 Be4 Re7 Bb8 Ne2 Rf1 Ng3 Bc7 Ngf5 Bb8 Bh6+ Kh8 Nh4 Bf5 Nde4 Bc7 Qd5 Bd6 Qa8 Bb8 Rdd7 B8e5 Nd5 Re6 Nd6 Be4 Nb6 Bf5 Rd4 Bg3 Rdf4 Ne1 Rgg7 Bb1 Rg6 Nc2 Bg7+
n5b1/kb1n2b1/nq1N4/1n1Rpq2/2N1BnB1/1RR1rQ2/1b2P3/1BrKn1N1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 f4 d5 a4 Kd7 h4 Kc6 c4 Kb6 f5 e5 f6 g5 f7 d3 c5+ Ka7 h5 b5 a5 b3 c6 g2 a6 b2 h6 b4 h7 b3 c7 d2+ Kf2 g3+ Ke3 g4 Kd3 d4 Qc2 d1N Kd2 d3 Rh4 Bg7 f8R Nc3 Rf6 Na4 Na3 b1B Rf3 b2 Nc4 Bb7 c8B Nf6 Ne3 Qb6 Nd1 Ba2 Rh2 b1Q Qc6 Nfd7 Qf6 Bg8 Nh3 g1N Qf5 g2 Ne3 g3 Ng5 Nh3 Nc4 g1B Qf8 Nf4 Nh3 Bd4 Bg2 Bb2 Ng1 Qf1 Bh3 g2 Bg4 Qff2 Kd1 d2 Rb3 Qf3 Kc2 d1N Rh3 Ndc3 Rd1 Nb5 Rd5 Qe4+ Kd1 Qf5 Nf3 g1N Rg3 Ngh3 Ng1 Ng5 Rgc3 Nf3 Qf7 Ne1 Qh5 Qfg6 Qh1 Qf5 Qf3 Ndc5 Be6 Nbd7 Bf7 Rc8 Bg6 Ka8 a7 Na6 Ne3 N4c5 Nc4 Nac7 Qd3 N5a6 Qh3 Bf7 Qf3 Rhd8 h8N Bg8 Nf7 Rf8 Nd8 Rf6 Bh7 Rh6 Nf7 Rh3 Qg2 Re3 Qf3 Bc6 Bg6 Kb7 a8B+ Ka7 Bb7 Na8 Nfd6 Qf8 Bb1 Qf5 Rd2 Be4 Bd5 Rc5 Be6 Bb7 Bd5 Rc8 Bde4 Rc6 Rd5 Rc5 Na5 Rc7 Rcd3 Rc3 Nac4 Rc2 Rdc3 Rc1+
K1B1b2B/P3Nb1n/5R1p/1k3nr1/2rbr2R/br1Qr1q1/1r1N1R1N/q3B3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 g4 Kd7 c4 Kc6 a4 b5 f4 e5 a5 b3 c5 b2 f5 h6 f6 h3 a6 h2 a7 d3 Kc3 b4+ Kb3 d2 Ka4 d4 f7 d3 g5 b3 g6 e3 g7 e4 Bh3 e2 Be6 e1B Qf3 d1Q Be3 d2 Qf2 Qd6 Ka5 Qg3 Nh3 Bd7 Qf1 Bf2 Bf5 Be8 Bh7 Nd7 Ka6 Rc8 Qe1 Ne7 g8R Nf5 Ng1 Nf6 Bd4 e3 Ra2 e2 Rg6 Rg8 Qf1 e1R Nf3 Re4 Qd3 Rg7 Bc3 Bd4 Bg8 Bd6 f8B Nh7 Rf6 Rg5 Bg7 Qc1 Bf7 d1R Nbd2 b1R Bh8 b2 Be6 Rde1 Bb4 Rc7 Bc8 R1e3 Ba5 Ra1 Bc3 b1R Ba5 Rb3 Rc2 Kd5 c6 Ba3 Bc3 Rcb7 c7 Kc5 Ra2 R7b4 Rb2 Rc4 Ra2 Bb4 Kb7 Kb5 Ka8 Rab1 Nf1 Re7 Be1 Qc3 Rf2 Qa1 N1d2 Bbc5 Bb7 R1b2 c8N R7e4 Ne7 Ba3 Bc8 Re5 Rhf1 h1B Rh2 Re6 Rff2 R6e5 Rh4 Re6 Bb7 Bg2 Nh2 Bd5 Rf7 R6e5 Rf6 Bdf7 Bc8 R5e4
n3R2B/5r2/2kN1n2/rnbR1P2/N1nn1BR1/qQ3n2/n1p5/n2nKbNB w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kd7 g4 h5 f4 c5 a4 e5 g5 b5 a5 e3 d5 e4 g6 c3 f5 c4 a6 e2 a7 b3 g7 b2 d6 b4 Ra5 h3 Rc5 c2 Bf4 c1N Bd2 c3 Rh2 b3 Ra5 h4 Qc2 Kc6 d7 Qe7 d8B Rh7 Be3 Qa3 Bd2 Nd7 Bh6 Nb6 Kf2 e1N Ra6 Nf6 g8R Nf3 Ra4 Rf7 Bd3 e3+ Kf1 e2+ Kf2 e1N Ra6 Na2 Rgg2 Bc5+ Ke2 Bb7 Qd1 Nc2 Nd2 b1N Rg5 b2 Rh1 h2 Rg8 h3 Ne4 Na1 Bc7 c2 Be5 Nbd2 Ra5 b1N Bhf4 Ndc4 Re8 Ba6 Nd6 Nbc3+ Kf1 Nb5 Qb1 Rb8 Bd4 Na8 Qb3 Rbb7 Kf2 Rbe7 Bf1 Re5 Bg2 Rd5 Ne2 Re5 Rg1 h1N+ Kf1 Nf2 Bh1 h2 Rg4 Nd1 Ng1 Ndc3 Kf2 Ne2 Kf1 Rd5 Bc3 Ned4 Kf2 Nac7 a8N Re5 Nb6 Na8 Na4 Rd5 Bg2 h1N+ Kf1 Nf2 Bh1 Re5 Bb2 Nd1 Bc3 Nbc7 Bb2 Bb4 Rd5 Ncb5 Bc3 Bc5 Bb2 Ree7 Bc3 Ra7 Bb2 Bc8 Bc3 Ra5 Bb2 Ba6 Bc3 Ng5 Ke1 Na7 Bb4 Nd2 Qd3 Ng8 Qg3 N4b3 Ree5 Bf1 Re2 Nc4 Bc3 Nb5 Bh8 Nf6 Re8 N3d4 Qb3 Ngf3+
nK2r1q1/1Qb1n1R1/1B1Nr1b1/2pP2B1/bk1r3R/6Nq/q1RN3q/r5bB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 g5 a5 b5 d3 f5 h5 g3+ Kf3 b3 a6 g2 d4+ Kb4 e5 c5 e6 b2 d5 c3 h6 g4+ Kf2 c2 h7 f3 Kg3 f2 Kf4 g3 Ke5 f4 a7 f3 e7 Na6 e8N Ne7 Be3 c1R Bc4 f1R Ng7 f2 Bb3 Rc4 Ne8 Bd7 Kd6 Nc7 Rh3 Re1 Ra5 f1Q Rh4 Rd4 Nd2 b1Q Bg5 Qa2 Ne2 g1B Qb1 g2 Ng3 Bg7 Qb2 Bf6 Qb1 Rg8 h8B Rg6 Qb2 Ra1 Ra6 Rb8 a8R Rh6 R8a7 Na8 Rb6 Qf5 Qb1 Qh3 Qh7 Rg6 Bc2 Rc8 Be4 Rb8 Ng7 Qg8 N7f5 Re8 Rab7 Nc6 Rc7 Bd8+ Bhf6 Ne7 Ra6 Be3 Rb7 g1Q Bh1 Qgh2 Ra3 Bg1 Rc3 Ka5 Rc2 b4 Qg7 b3 Qh7 Ba4 Rd7 Nc6 Rg7 b2 Kd7 b1B Kc8 Ne7+ Kb8 Kb4 Nd6 Rg4 Be5 Re6 Bc3+ Ka3 Ba5 Rd4 Bb6 Kb4 Rc3 Bg6 Rc2 Bf7 Qd3 Bh5 Qa6 Bg6 Qb7 Bc7+
Q5Nn/rB2n2b/1b1P2b1/r1b2qBN/2RpBR1n/2RN2K1/q3k3/2n1q2q w - - 0 1 illegal: No proof kernel
1nnqBn2/1bnB1R1n/3K2bB/2N5/3N3R/2pP1N2/1p1b1qrR/r2kr2Q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 g4 h5 e4 f5 a4 h3 a5 b3 a6 Kb4 g5 c5 a7 h2 g6 f3 g7 f2 Na3 h4 Qe1 f4 Bb2 f3 Be2 f1Q Rd1 f2 Nf3 h3 Rb1 c3 Qc1 c2 Ba1 b2 Bd1 Kb3 Be2 b4 Bb5 c4 Ng1 c3 Ba6 Ne7 g8N Bh6 Bd3 Bb7 Ne2 Nc8 Nf6 Rg8 Ng1 Rg2 Qe1 c1N Ba6 Nd3+ Ke6 Ne5 Nd7 Ng6 Nb5 Kc2 e5 b3 Nf3 Qg1 Rd1 b1B Bb2 f1N Bc1 b2 Nc5 Ne3 Qh4 Qf2 Rdf1 Nd5 d3 Bd2 Qh8 Ba2 Qh5 Be1 Be3 Kd1 Bh6 Bb3 Nbd4 Nc7+ Kf5 Bf7 e6 Nf8 Ke5 Bg6 e7 Qh4 e8B Qf2 Rhg1 h1N Bab5 h2 Bbd7 Ng3 Rh1 Ne4 Qh4 Ne7 Qh3 Ng5 Kd6 Qc2 Rf2 Ngh7 Rhf1 h1R Qh4 Rhg1 Qh1 Qd2 Re2 Qc2 Re4 Qf2 Rh4 Qe3 Rf2 Bd2 Rh2 Re1 Rh4 Nbc6 Rf1 Qf2 Rh2 Rc8 a8R Rb8 Ra4 Ra8 Nf5 Ra5 Rah4 Nb8 N5d4 Ra1 Ng1 Qe3 Rf7 Qf2 Ngf3 Nc8#
k3BBNK/n5q1/8/1n1prRB1/3qNQ1n/P2pNb1R/rr2rr2/4R1bb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 e4 b5 c4 g5 h4 d3 c5 b3 e5 g3+ Kf3 b2 h5 g4+ Kg2 b4 c6 b3 c7 Nc6 e6 Bc5 e7 Nh6 Rh4 f3+ Kh1 f2 Kg2 f4 Be2 f1B+ Kh1 f3 Bd2 f2 Rh3 g2+ Kh2 Na7 Kg3 Nf5+ Kf4 g3 Kg5 Nh4 Kf6 Bb7 Kg7 Bf3 Nc3 b1N c8R b2 h6 Na3 h7 b1R Ne4 N3b5 Qa4 Rb2 Rd1 d5 Ra1 Kd7 e8N Qc7 Bg5 Be3 N8f6+ Kc6+ Nd7 Kb7 a3 Re8 h8B Re5 Rf8 Rae8 Rf5 Ka8 Re1 Qc3 Kh7 Qd4 Bg7 R8e6 Bd1 B1e2 Kg8 f1R Bf8 Rf2 Kh8 Bf1 Ne2 g1Q Qc4 B1g2 Nf4 Bh1 Ndf6 g2 Ba4 Re8 Ng8 Ra2 Re2 Qga1 Qb4 g1R Ng2 Rb1 Re1 Rbb2 Qd2 Rc8 Qb4 Rcc2 Qd6 Rce2 Qc7 Bf4 Ne3 Bh2 Qc1 Bg1 Qc4 Nc3 Be8 Ncb5 Nc5 Qc3 Qf4 Qd4 Ne4 Qc1 Bfh6 Qc7 Bf8 Qg7+
rb2bN2/Qr3Nb1/nbkP3B/R5NB/1qqp4/1r3R1R/pBq3b1/n2K4 w - - 0 1 illegal: No proof kernel
1N1b4/n1b2nBB/1n1P2rq/1r2RrRp/2b1pR1N/3qr2k/K4QrN/3B4 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Ke6 a4 b5 d4 c5 Kd2 h5 Kc2 b3+ Kb2 b4 g5 Kf5 a5 e5 a6 e3 d5 e4 a7 e2 g6 Kg4 g7 h3 f5 h2 f6 Bd6 f7 Rh6 f8N Nc6 Qd4 e1R Be3 Bc7 Bf4 Re3 Qf6 c3+ Kc1 b2+ Kc2 b3+ Kd1 c4 Ra2 c2+ Kd2 c1B+ Kd1 c3 Ra5 Rg6 Be5 Nh6 g8R Nf7 Qf2 Be6 Nd2 b1N Bg7 b2 Kc2 Na3+ Kb3 b1R+ Ka2 c2 Ndf3 Nc4 Nh4 Nb6 Nd7 Rbb3 Nb8 Bb2 Re8 c1Q Ngf3 Bf6 Be2 Kh3 Rf1 h1R Bd1 Rhg1 Nh2 R1g2 Re7 Qd7 d6 Bc4 Re8 Bfd8 Rg5 Qg4 Ree5 Qg3 Na6 Rb8 a8B Na7 Bd5 Rc8 Nb8 Qd2+ Bc2 Qd3 Bd1 Qf4 Rgf5 Qh6 Rg5 Nh8 Bg8 Nf7 Ka1 Be7 Bh7 Rf8 Ka2 Bed8 Rb5 Nh8 Rbe5 Rf5 Qe2 Nf7 Rf4 Nbc8 Qb2 Nb6 Qf2 Rb5+
4K1bq/B1rP1Br1/1qr5/R3Qp2/rk1n4/N2q1NbR/1pn1r2B/N2R2b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 d4 Kd6 e4 b5 h4 g5 a4 c5 a5 f5 h5 b3 d5 g3+ Kf3 b2 h6 g2 a6 c3 h7 g4+ Ke2 c2 Kd3 f3 a7 f2 Ra2 g3 Nc3 b1Q Ra3 c4+ Kd4 b4 Nce2 c3 Be3 c1R Qe1 c2 Nf3 g1R Rc3 b3 e5+ Kd7 e6+ Kd6 e7 g2 e8R Nh6 Re5 Ng4 Bf4 b2 Bh2 Be6 Ra3 Rg8 h8B Qb6+ Kc4 Be7 Ned4 Nc6 Nb3 Bh4 Na1 Nd4 Qc3 Rae8 a8N Bg3 Nc7 Rg7 Bd3 f1Q Nb5+ Ke7 Kb4 Ne3 Bc4 Qd3 d6+ Kd7 Rb3 Kc6 d7 Bg8 Qe1 Rf1 Bf7 g1B Rd5 Re4 Ra3 Rf2 Ra5 Re2 Rd6+ Kb7 Rh6 Qa2 Rh3 Qd5 Qc3 Qe5 Qc5 Qef6 Qe7 Kc6 Qe5 Rg5 Bg7 Rg6 Bf8 Qh8 Bd6 Rg7 Bb8 Rce1 Ba7 c1R Ra3 Rc3 Ra4 Rec1 Ra5 B1f2 Rd1 Bg1 Ka4 Reg4 Na3 Nec2 Rd5 Qb3+ Ka5 Rc4 Ka6 R4g6 Ra5 Ra4+ Qb5+ Kd6 Kb7 Rh6 Kc8 Rhe6 Qb7 Qb6 Qe4 Reg6 Ra6 Kc5 Qe5+ Kb4 Ra5 Qe6 Kd8 Qb6+ Ke8 Rc6 Bc4 Ne1 Ba2 R1c4 Bb3 Nec2 Ba2 Rc3 Bd5 Rc7 Bf7 R3c6
RrbR4/3qpb2/pbBn4/3B2N1/n5b1/2NN3P/5nbb/krKRb1BQ w - - 0 1 illegal: No proof kernel
Nb1bb2q/1ppr4/N1k1b3/3Rb3/b3R1BP/2KrBQ1R/2b1r1BN/5n1n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 h4 f5 e4 g5 d4 f3 Kd2 c3+ Kd3 f4 d5 g3 d6 c2 a5 f2 e5 g4 e6+ Kc6 d7 f3 a6 b3 e7 g2 e8B b2 a7 g3 Kd4 Be7 Kc4 Nh6 Bh5 Na6 Qd3 Rh7 Rh3 Ng4 Qa3 Nb4 Bd2 c1B Bd3 f1B Bf4 f2 Nd2 b1B Nb3 Nh2 Bde2 Qh8 d8R Be6+ Rd5 Bd8 Qa5 Nd3 Ra2 Bc2 Bhf3 Bb2 Be4 Be5 Be3 Rd7 Nf3 g1R Qe1 g2 Bd1 Rh1 Ra5 g1B Bf4 Be2 Na1 f1B Qc3 Nf2+ Kb4+ Bc4 Qa3 Bb5 Nb3 Ba4 Nc5 Bfb5 Be3 Nf1 Na6 Rh2 Qb3 Rc8 a8N Nh1 Qd3 Rg2 Nh2 Re2 Bg2 Rb8 Qf5 Rc8 Qf3 Rb8 Bf4 Ba7 Be3 Rc8 Qf4 Bb8 Qf3 Bbd3 Rab5 Bg6 Ra5 Be8 Rd4+ Rd5 Re4 Rd7 Rb5 Bg5 Rd5 Rcd8 Ra5 Rd4+ Kc3 R8d7 Rd5 Bd8 Qh5 Red2 Bg4 Rf2 Qf7 Re2 Qf3 Rd3+
NQ1n2B1/3R2q1/8/RB2r2b/1qqB1Rn1/b2q1r2/Pr1p2p1/Nbk1KnN1 w - - 0 1 illegal: No possible last move, all moves rejected
1r1B3B/qq2n3/qQN3NP/2R2bn1/p2N2Br/R1br4/2K1rpnk/1R4b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 e4 Kf6 h4 Ke5 b4 g5 c4 a5 h5 f5 b5 d5 b6 g3 c5 d3 c6 g2 b7 g4 c7 g3 Ra3 f3 Ne2 g1R Bh3 f4 Ra2 g2 Nec3 d4 Qb3 a3 Qb6 f2 Qa7 f1Q Qa6 f3 Rc2 Kf4 e5 Kg3 e6 f2 e7 a2 e8N a1Q Ba3 Nf6 Bd7 Bg7 Qe6 Qe7 Na2 Nc6 b8B Nh7 Nd6 Ng5 Rc3 a4 Ba7 Rb8 Nb5 Be5 Nb4 Qb2+ Nc2 Qg7 Bb6 Ne7 Na7 Qb3 Ba5 Qb7 Qb6 Qh7 Bh3 Bf5 c8R Re8 h6 Bf6 Rh2 Rh1 R8c5 g1B Bg4 Be5 Rh5 Rh4 Bb2 Kh2 Nba3 Qe2+ Kc1 d2+ Kb1 d1N Nc4 d3 Nc6 d2 Ra3 Bg7 N4e5 Qea6 Ng6 Ne3 Bf6 d1R+ Kb2 Bd7 N2d4 Ng2 Kc2 Rd3 Rb5 Bf5 Rb1 Bf8 Bh8 Bg7 Qb3 Be5 Bd8 Qf7 Qb6 Qba7 Ne6 Bc3 Ned4 Qd5 Rd1 Qdd7 Rb1 Qdb7 Ra2 Nf3 Nb4 Nc6 Bdf6 Be4 Rc5 Ng5 Bd8 Bf5 Raa1 Re4 Ra3 Ne7 Nbc6 Re2+
1q4Br/B3rrkr/nR2PpN1/n1Nr3p/2bR1rbN/4B1n1/Q1K5/2b4R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 e4 b5 d4 h5 Kd2 b3 g4 b2 g5 b4 d5 f3 a5 c3+ Kc2 f2 g6 c4 e5 h3 d6 f6 g7 Kf7 a6 h2 a7 Ne7 g8R Na6 d7 Rh7 Bh3 f1B Qd6 b3+ Kd1 c2+ Kd2 Bh6+ Rg5 Nc6 Na3 b1R Nf3 b2 Nh4 Na5 Qd5+ Kf8 Be6 c3+ Ke1 Rb8 a8N Bc4 Nb6 Rf7 Rf5 Kg7 Na4 Rb5 Qd2 Rd5 Rf4 Qc7 d8B Qb8 Nc5 Bd7 Bh3 Bg4 Rd4 Bf4 Ra2 Ra1 e6 b1R Bb6 Rb4 Ba7 Rbb7 Rb2 Rbe7 Qe2 Ra2 Be3 c1R+ Qd1 c2 Kd2 Bg5 Qe2 Rf1 Rb6 Rf4 Bg2 Bh6 Be4 c1R+ Bc2 Raa1 Bh7 Rd1+ Kc3 Rd8 Qf2 Rh8 Bg8 Rab1 Qa2 Rb2 Rbd6 Rbb7 Rb6 Rbc7 Kc2 Rcd7 Rg1 h1N Re1 Ng3 Rh1 Bd5 Nc4 Rb7 Ne5 Bc4 Rd8 Rd5 Neg6 Re4 Bf2 Bc1 Be3 Rf4 Rd7 Kh6 Rdd6 Rfh7 Rd8 Kg7 Rdd6 Rf7 Rd8 Rbe7 Rd7 Rdf5 Rd4 Rd5
BbNK1NBR/q3RP1q/3Q1p2/4nq2/1qk1br2/RrBnp2N/4q3/q5q1 w - - 0 1 illegal: No proof kernel
1KRq2r1/2rqqN2/1NnB2Q1/1pB4B/8/1q5b/1Rqp2Pb/1rnqk1NR w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Ke6 a4 Ke5 a5 Kf4 a6 h5 c5 b5 c6 e5 a7 d5 f3 Kg3 f4 Kf2 f5 d3 f6 h3 c7 b3 Kc3 h2 f7 e3 Na3 b2 Qg4 b1R Qg7 d2 Qh7 d1Q Nf3 e2 Bh6 e1Q+ Bd2 h4 Ng5 d4+ Kd3 h3 Be2 Nf6 Qh5 Rg8 Bg4 Ne4 Qh4+ Ng3 Bf3 Qb3+ Bc3 Bd6 f8B Nc6 Qg4 Ne2 Ke4 d3 Qh5 d2 Nf7 Qc1 Nc4 Qcc2+ Kd5 e4 Bd4+ e3 Bc5 Nc1 Qg6 Bg3+ Bcd6 e2 Bh5 e1Q Ra2 Qee7 Rb2 Bf5 Kc5 Rc8 Kb6 Be5 Kb7 Bf4 Rg1 h1Q a8N h2 Nce5 Bh3 Nf3 Qed7 Rd1 Qe1 Nb6 h1Q Ng1 Qee7 Bc5+ Qee3 Bfd6 Bh2 Nf3 Qf1 Re1 Qe2 Rh1 Qed1 Ng1 Ke1 Qe4 Ra8 Qg6 Ra4 Qf6 Rc4 Qg6 Q7e8 c8R Q3e7+ Ka8 Qdd7 Bb4 Q8d8 Bbc5 Nd4 Kb8 Rc3 Bb4 Rc7 Bbc5 Nc6+
2q1k2b/bb1bb3/1pr3nP/R1rR1B2/n1N1NBQq/N4K1B/R4p2/1r2b3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 h4 c5 a4 g5 d4 b3 e4 f3 e5 c3 a5 c2 h5 b2 d5 c4 e6 f4 a6 c3 e7 g3+ Ke1 g4 d6 f2+ Ke2 g2 h6 g3 a7 f3+ Ke3 Bd7 Qe2 Na6 Ra5 Nc5 Ra1 Rc8 a8B Rc6 Ra6 Na4 Nd2 b1R Bb2 c1Q Qc4 c2 Ne2 g1B Rh5 g2 Ng3 Qc8 Kf4 Qe1 Be5 c1B Ne4 Bb2 Qd4 Rh7 Nc4 Rf7+ Kg3 Rf5 Bf4 Rfc5 Na3 Bc3 Qc4 Bh8 Rd5 Qb4 Ra5 Qe1 Bd3 Qb4 Qd4 f1B Qg7 Be3 Qg4 g1B Bc2 Ba6 Bd3 f2 Kf3 b6 Bf1 Qd4 Bh3 Bh2 Bb7 Qc4 Rd2 Qb4 Ra2 Bd2 Ba8 Be1 Bb7 Kf7 e8N Ne7 Ba8 Ng6 Bb7 Be6 d7 Be7 d8R Bd7 Ba8 Kf8 Bb7 Bg3 Ba8 Bb7 N8d6+ Be8 Ndc4 Bh2 Rd4 Bd7 Rd5 Ke8 Bd2 Bb8 Bf4 Ba6 Bb7 Ba7 Ba8 Rd6 Bc6 Bb7 Bb5 Nc3 Ba4 Rdc6 Bc2 Na4 Ng3 Qb2 Bf5 Qf6 Ne4 Qh4
3b1q1r/B1Q2R2/P3b1N1/b1nr2R1/1kBb2pN/1n1q3N/1r2p3/bR3bKB w - - 0 1 illegal: No proof kernel
R4K2/b1qpRb2/B3bb1B/NB3r1P/Nr5r/1bRbn1p1/7k/1Q1n2qN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Ke5 c4 g5 h4 f5 c5 b5 c6 b3 a5 f3 Kg3 d3 a6 b2 c7 f2 a7 d2 Ne2 f4+ Kh2 g3+ Kh3 g4+ Kg2 b4 Ng1 b3 Nc3 b1R Qc2 d1B Ba3 b2 Nge2 Ne7 Na2 Bg7 Nb4 Bb7 c8B Na6 Rh2 f3+ Kh1 Nc5 Rh3 g2+ Kh2 g1B+ Kg3 Qc7 Qb3 Bd5 Ba6 Raf8 a8N Na4 Nb6 Nc3 Na4 Bf6 Qa2 B1b3 Nc6+ Ke6+ e5 Kf5 Bd6 Nd1 Na5 Bf7 e6 Nd5 e7 N5e3 e8R Rh5 Re7 Rfh8 Bg2 f1Q Bf4 f2 Bc6 Bbe6 Bcb5 Ke4 Nc1 Rf5 Nd3 Qe1 Qb3 f1B+ Nf2+ Kd4 Ra3 Bfc4 Qa2 Bb3 Qa1 Qf1 Nh1 Ke4 Qa2 Nd5 Qa1 Ba7 Qa2 N5e3 h5 Rb8 Qa1 Rc1 Ra2 b1B Ra3 B1c2 Qb1 Bd3 Ra2 Rc6 Ra3 Rd6 Bh6 Ke5 Ra2 Rd4 Ra1 Rb4 Ra2 Rg8 Ra1 Rgg5 Kh4 Kf4 Ra3 Qg1 Rg3 Ba2 Rc3 Bab3 Rg2 Kf3 Ra2 Rff4 Ra1 Kg2 Ra3 Be5 Ra1 Rgf5 Ra3 Rf6 Kg5 g3 Ra1 Rh4 Ra2+ Rf2 Ra1 Bf4+ Kf6 Kh2 Kg7 Be5+ Kf8 Rf5 Bc8 Rhf4 Nb6 Rbd4 Nac4 Bb8 Ra8 Bf6 Na4 Ba7 Na5 Rh4 Bca6 Rb4
3nb3/qNq5/2N2kbq/Rn2R2q/rN2R1Pp/1BB2qB1/1Q2prbb/1K6 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 h5 a4 d5 c4 e5 Kc2 b5 c5 h3 a5 e3 f5 e4 a6 e2 c6 e1Q a7 e3 c7 h2 f6 d3+ Kb2 b3 g3 d2 Bh3 b4 Nf3 d4 Ra4 d3 Nd4 h4 Ra3 Ne7 Bf1 Nec6 Ne6 Bd6 Rg1 h1B Qe2 d1Q Ra4 d2 Bg2 Nd4 Qd3 Bd7 c8N Nbc6 Qc3 Qc7 Nc5 Rf8 Nb7 Be8 Na3 Nb5 Ne7 Qh5 g4 d1Q Kb1 b2 Nc2 Qf2 Re1 Nd8 Nc6 Qdf3 Bd2 Bh2 Qb3+ Kg6 f7 Kf6 Bf1 Qh6 Bc4 Bg2 Qa3 Qh5 Bb3 Qh6 N6d4 Qh5 Bc3 Qd2 Nc6+ Qd4 Rd1 e2 Rd3 Qh6 Re3 Qh5 Re5 Qdb6 Ka2 b1B+ Ka1 Qbe3 Qb2 Qeh6 Ra5 Rh8 f8B Rh7 Na3 Bbg6 Nc2 Rf7 Bd6 Rf8 Kb1 Rf7 Ba2 b3 Ra4 Rf8 Rae4 Rf7 Qc1 b2 Bb3 Rb8 a8R Rf8 Ra5 Ra8 Ra3 Ra4 Ra1 Qhe3 N2b4 Qa7 Bc5 Qh6 Bf2 Qh5 Bg3 Rf7 Kc2 b1Q+ Kd2 Ra5 Bf4 Qfd3+ Ke1 Kg7 Bg3 Rf2 Ra4 Qf3 Kd2 Qa1 Kc2 Kf6 Qb2 Qe1 Ra3 Qd2+ Kb1 Qdh6 Ra1 Ra2 Qc1 Rc2 Ra5 Ra2 Qb2 Ra4
4q2Q/r1q2b1R/3b1B1P/3q1bRB/r1n4N/2R1bp1N/6pN/k1nBqb1K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 a4 Ke5 h4 d5 c4 b5 e4 g5 a5 f5 c5 f3+ Kh2 g3+ Kh3 f2 Kg2 b3 h5 b2 c6 f4 c7 g4 h6 d3 a6 Kd4 e5 b4 e6 b3 a7 d2 e7 Be6 e8N Nf6 c8R Ne4 Rc6 Nd6 Nc3 b1B Bd3 b2 Bg6 Na6 Qf3 d1Q Ra2 Qc7 Ra4+ Nb4 Ra2 Qe2 Rh3 f1B+ Kh1 g2+ Kh2 Bbf5 Nd1 b1Q Rc5 Nc4 Qa3 Rh7 Rf3 Nd3 Nf2 Bf7 Bh5 Bd6 Ngh3 g1B+ Kh1 g3 Ng4 Be3 Ng7 Qa1 Qa6 Kc3 Nh2 d4 Qc8 Kb3 Bb2 Qae1 Qg8 Nc1 Qh8 d3 Bf6 d2 Rb2+ Ka3 Rb7 Ka2 Rd5 d1Q Rdb5 Bg4 Rg5 Qd5 Nf5 Rg7 Nh4 Bf5 Rb2+ Ka1 Rc2+ Qe5 Rc3 Q2d2 Rf2 Qe8 Bd1 Qd5+ Rf3 Rb8 a8B Rb4 Bc6 Ra4 Bd7 Bb1 Bg4 Bc2 Bh5 Bf5 Ng2 Rh7 Rf2 Rg7 Rb2 f3 Nh4 Rh7 Rb7 Qcc5 Ng1 Bg8 Rb5 Rha7 Rb7 Bge6 Rd7 Qc7 Rh7 Bf7 Nh3 g2+
2n3RN/K2N1rbB/n2P2bp/1k1n4/4pNRb/3nb3/1r1Bq1RQ/Bq5n w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 a4 e5 f4 b5 g4 h3 d4 c3 g5 b3 g6 h2 f5 b4 g7 c2 a5 h6 a6 b2 f6 b3 a7 Qe8 f7 Bf5 Be2 Na6 Nd2 b1Q Ngf3 b2 Nc4 Ne7 g8R Kb5 d5 c5 d6 Rh7 Nb6+ c4 Nd7 Rb8 a8N Bg6 Ng5 Nc8 Bd3 Nb6 Rg1 h1N Rg2 Bg7 Bd2 c1B f8B Rb7 Bc2 c3 Nf7 Qe7 Qh5 Rb8 Bb3 c2 Nh8 Rb7 Qh2 Qe8 Ke2 e3 Ra4 Qe6 Kf3 e2 Ke3 e1B Rag4 Bh4 Bd5 Rb8 Be4 Qc4 Bf5 e4 Be7 Qf1 Bf6 Qe2+ Kd4 Rb7 Bb4 Bcg5 Bd2 c1N Be5 Nd3 Nc7+ Kc6 Nd5 Be3+ Kc3 Kb5 Nf4 Qc1+ Kb3 b1N Bec3 Qcf1 Ba1 Nc3 Ka3 Ncd5 Kb3 Bc3 Ka3 Rf7 Kb3 Bh5 Bh7 Bg7 Ka3 Bg6 Kb3 Kc6 Ka3 Rb8 Kb3 Qb1+ Ka3 Nc8 Ka4 Rb3 Ka5 Ncb6 Nb8+ Kc5 Nd7+ Kc4 Be1 Rb2 Bd2 Kb3 Kb5 Ka3+ Kc6 Ka4 Kb7 Kb5 Ka7 Nc8+
3nqb1k/6nq/3r1rb1/b2pR3/1KR2rNP/1B2r1R1/3np2n/1BBQNN2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 e5 f4 b5 a4 g5 c4 Kg7 f5 d3 a5 g3 a6 g4 a7 b3 Kc3 b4+ Kb2 e3 c5 d2 c6 e2 c7 e1R Rh3 e4 Ba6 e3 Bf1 g2 Bb5 g3 Qf3 d1R Ra3 Qe8 Bd3 Nf6 Ra1 Nh5 Qf1 Rh6 f6+ Kh8 f7 Nc6 Ra5 Nd8 Ra1 Rf6 Bb5 Rdd6 Bd3 Ng7 Nf3 g1N Bg6 g2 Nbd2 Ba6 c8B Bd3 Rg3 e2 Bh7 Bg6 Ra4 Rd1 Ne1 Nf3 Ba6 g1B Bc4 Nh2 Be6 Rb8 a8R Bb6 R8a5 Rd3 Rb5 Re3 Re5 Ba5 Qg1 Ra8 Nf1 Rd6 Qh1 Rc8 Qd5 Rc4 Qd1 Rcf4 Bd5 Bh5 Bb1 Bg6 Ka1 b2+ Ka2 b3+ Ka3 Bb6 Rc4 Bc7 Kb4 Bb6 Bd3 b1N Bf5 Nd2 Bb1 b2 Be6 Be7 f8N Bc7 Nh7 Bf8 Ng5 Bb6 Ne4 Bc7 Nf2 Bb6 Bc2 b1Q+ Bb3 Qf5 Ng4 Qh5 Bf5 Qh7 Bb1 Ba5+ Kb5 Rc6 Ka4 d5 Kb5 Rcd6+ Kc5 Bb6+ Kb4 Ba5+
3nbB1r/1Nbk1N1b/p3N1b1/1n6/QRPr2n1/1n1B4/1R5p/qR1rKB1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 f5 b4 d5 e4 h5 g4 f3 b5 a6 b6 a3 g5 f2+ Ke2 f4 b7 h3 g6 f3+ Kd2 h2 e5 d3 e6 a2 g7 d4 e7 h4 Qe2 h3 Nc3 Kd7 e8N Nc6 b8R Nh6 g8B Qf6 Qe3 Nd8 Rb6 Ng4 Bg2 f1B Qe2 f2 Rb4 Bd6 Be4 Bc7 Rab1 a1N Bb7 Nb3+ Kd1 d2 Qe4 Bd3 Nd5 f1B Nd6 Rb8 Qf3 Bg6 Nf4 Bfd3 Bh7 Be8 Qg3 Bdg6 Bg2 Bb7 Qd3 Bbe4 Qc2 Qe5 Ke2 d1N Nf3 d3+ Ke1 Nc3 Ne6 Nb5 Nfg5 Qa1 Bf1 Rc8 Rg1 h1Q Nb7 h2 Ba3 Rb8 Rg2 d2+ Kd1 Ra8 Nf7 Ra7 Ke2 d1R Rf2 Rd4 Ke1 Ra8 Qd1 Rb8 Rfb2 Rd2 Nbd6 Rb6 Nb7 Rbd6 Qc2 Nc1 Qa4 R6d4 R4b3 Bef5 Bf8 Bd3 Rb4 Nb3 Bh6 Bh5 Bf5 Bg6 Bf8 Bc2 Bd3 Bh7 Be2 Bcg6 Bd3 Rd1+
1K3N2/3P1r2/R1B1n1N1/2qr3R/1Bp1kr1B/4bn2/NQrpb2R/b2bq2n w - - 0 1 illegal: No proof kernel
Q2b1rr1/n2bBNnB/r1nnB2N/k2NR3/p3P2n/3n2p1/2r5/RR4Kq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 g5 h4 d5 e4 Kd7 c4 Kc6 b4 Kb6 b5 a5 h5 f5 h6 d3 h7 a3 Rh4 a4 c5+ Ka5 b6 a2 b7 f3 c6 f4 c7 g3+ Ke1 g2 Kf2 d4 Nd2 g4 Be2 g3+ Ke1 Be7 Rh2 Ra6 Nb1 f2+ Kd2 f1N+ Ke1 f3 Nc3 Nc6 b8N Bd7 c8B Nf6 Be3 Nd2 Qb3 f2+ Kd1 Rg8 h8R Nc4 Rh1 d2 Bd3 f1R+ Ke2 d1N Bg5 Nf2 R8h5 Nd6 Nh3 Nfe8 Nd5 Ng7 Bc4 Nd3 Qb7 Rff8 Nf2 g1N+ Kf1 Nf3 Ng4 Nh4+ Kg1 Bf6 Rb1 a1R Qa8 Ra2 Nh6 Rc2 Bb3 Qe8 Ba2 Bd8 Be7 Qg6 Re5 Qh7 Ra1 Ndb4 Bc4 d3 Bb3 Na7 Nc6+ Kb5 Rb1 d2 Ra1 d1N Rb1 Bf5 Be6 Nf2 Ba2 Bh3 Bf5 Qh8 Bh7 Bd7 Ra1 Nfd3 Bb3 Bc7 Nd8 Nbc6 Ndf7 Ba5 Ne3+ Kb4 Be6 Bd8 Nd5+ Ka5 Rh2 Rc4 Rb2 Rc2 Rbb1 Rb2 Bhf5 Ng2 Ng4 Rc2 Bg6 Qh3 Bh7 Nh4 Ngh6 Qh1+
3b2nK/2nN2q1/2n1BB1k/2p1b1n1/1p2bb2/1PRn3n/R2N1B1r/Q2R2rN w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 a5 d5 a6 dxc4 Qa4+ Nc6 Qd1 Nb4 Nc3 Nxa6 Nb1 Nb4 Qb3 Na2 Qc2 Bf5 Qd1 Bc8 Kf2 f5 Kf3 Kf7 d4 Kg7 e4 b5 g4 h5 d5 a5 b3 c5 d6 a4 e5 c3 d7 a3 g5 h3 e6 h2 e7 c2 e8R h4 g6 h3 Bd2 c1B Re3 Qg5 d8B Nb4 Re2 a2 Nc3 Be7 Be1 Kh6 g7 Bb7+ Nd5 Nc6 Nf6 b4 Ba5 Bd8 Rb1 a1B Bf2 Be5 Bb6 Ra1 Bg3 Qg4+ Kf2 f3 Ne4 f4 Ra2 Qd7 Bc4 Be3+ Kf1 f2 Ke2 f1N Be6 Nd2 Rc1 Nf3 Bf2 Ng5 Nd2 Ba8 Rc3 f3+ Ke1 Qf7 Ne2 B3f4 Ng3 Qf8 Rg1 h1N Bc7 h2 Rf1 Bd4 Be5 Rh7 Bf6 Bde5 Qb1 Rh8 Kd1 Qf7 Kc2 Qf8 Be3 f2 Rd1 f1N Bf2 Ne3+ Kd3 Nd5 Qb2 Rb1 Qa1 Nc7 Kc4 Na6 Kd5 Rh7 Bg1 Nf2 Nh1 Nfh3 Bf2 Qf7 Kc4 Nc7 Kd3 Nf3 Ke4 Nfg5+ Kf5 Rb2 Ne4 Re2 Nd2 Re1 Ra4 Qf8 Ra2 Rg1 Rcc2 Na5 Bd4 Kh5 Nf2 h1N Rc3 Bd5 Be3 Nc6 Bd4 Qe7 Be3 Qd7 Be7 Nf6 g8N Rh8 Nfe4 N3f2 Ng3+ Kh4 Kg6 Be4+ Kg7 Nd3 Bd4 Nhf2 Nh1 Kh5 Be3 Rh6 Bd4 Ngh7+ Kh8 Kg6 Rb1 Rh2 Rd1 Nh3 Be3 N7g5 Bf2 Ng4+ Nf6 Nh6 Bf8 Qe7 Bg7 Ng8 Nd7 Kh5 Bf6 Kh6 Be1 Qf8 Bf2 Qg7+
B1N4n/1Q1p2r1/nKPr2N1/1R1qbN2/2B4R/1n2rk1n/r1bB2p1/R1n4n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Ke5 c4 g5 h4 f5 h5 b5 c5 d3 a5 f3 Ke3 g3 h6 f2 a6 b3 a7 b4 h7 d2 c6 b2 Qc2 d1R Qb3 g2 Ra2 f4+ Kf3 g4+ Ke2 f3+ Ke3 g3 Nc3 b1R Ba3 Qa5 Bb2 Na6 Rh6 Rd6 Bc4 Qd5 Ba3 Re1+ Nce2 Ne7 Rd2 Ng6 Rh2 Bg7 Qa4 b3 Qb4 b2 Rh1 b1N Rc2 Nd2 Qb7 Rg8 h8R Nb3 Bb4 Nc1 Nh3 g1N Bd2 g2 Rh4 Nh8 Nf4 Nh3 Rb2 Bf6 Rb5 Rg7 Bb4 Rd1 Nd4 Re1+ Kd2 f1N+ Kc3 f2 Nf5 Ng3 Ng6+ Ke6+ e5 f1N Ba5 Nd2 Rf1 Nh1 Rg1 Nc7 Kb4 Ndb3 Ka4 Na6 Bd2 Re3 Re1 Na1 Ka5 Nab3+ Kb6 Na2 Ra1 Nac1 Qc7 Bb7 Qb8 Bc8 Nfe7 Bb7 Nc8 Kf5 e6 Be5 e7 Kg5 e8N Kf5 Rh7 Ke4 Rh4+ Kf3 Nc7 Nb4 Ne6 Ba6 Nd4+ Kg3 Nf5+ Kf3 Rba5 Bb5 Qb7 Na6 Bf1 Bd3 Rb5 Be4 Bc4 Bc2 Nce7 Rf8 a8B Rff7 Nc8 Rff6 Nh6 Rf4 Nf5 Rg4 Bd3 Ra4 Bc4 Ra2
1Q1b2R1/1pB1br1r/n2p1RB1/5nBq/kn1N4/b1Kr2P1/8/Rr1NNn1b w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 f4 e5 c4 d3 a4 h3 c5 h2 c6 h4 c7 h3 f5 e3+ Ke1 d6 f6 Kd7 a5 Kc6 f7 Kb5 a6 e2 Kd2 e1B+ Ke3 b3 a7 e4 Kd4 b2 Qg4 e3 Qh5+ Qg5 Ra4 e2 Nd2 b1R Qg6 Na6 Ra3 Nf6 Bb2 Nd5 Ne4 d2 Nf2 Rh7 Bc1 Bd7 c8R Ndb4 Nf3 Be7 f8B Qh5 Ra1 Bc6 Nd1 B1h4 Kc3 Bd8 Qe8 Bhe7 Rg1 h1N Ne1 h2 Bh6 Ng3 Bg5 Nf5 g3 h1R Qg8 Rb8 a8N Rh2 Qh8 Bh1 Nc7+ Kc5 Ne6+ Kb5 Ba3 Ka4 Nd4 Rf7 Bg2 Ra8 Rf1 Rb8 Nec2 e1B Be4 Bf2 Ne1 Ra8 Nc6 Bc5 Nd4 Re2 Bd5 Rh7 Bf7 Rf2 Bg6 Rf7 Rc7 Rc8 Rc6 Rc7 Qg8 Rd7 Rc8 Bc7 Qh8 Nd3 Bf4 Rh7 Bf7 Ng7 Nf5 Bh4 Bg6 Rf7 Nde3 Be7 Nd4 Rg2 Bg5 d1N+ Kc4 Rh2 Rf6 Nf5 Bb4+ Ra2 Bc3 Ba3 Ba5 Rd2 Rb8 Ndb4 Bb6 Nf2 Kc3 Ng4 Nd1 Nge3 Ba5 Bb6 Qc8 Nf1 Qc7 Re2 Rg8 Rd2 Qb8 Bbd8 Bc7 Rd3+
3R3r/P3qb2/1pnK1n2/BBB2R1n/1Q1b1N2/r1r4N/1pbkb1r1/4Nn1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 e4 Ke5 a4 d5 c4 g5 h5 f5 a5 b3 a6 d3 c5 Kd4 c6 b2 c7 b6 e5 f3 Kg3 f4+ Kh2 d2 e6 Ke3 e7 f2 e8R+ Be6 c8N f3 Kg3 d4 h6 d3 h7 Nf6 Nh3 Qe7 Ng1 Bg7 Ra3 Nc6 Rc3 Bf7 Be2 f1R Rb3 f2 Nh3 Re1 Na3 f1N+ Kg2 g3 a7 g4 Rb5 Rb8 Rd8 Ra8 Nd6 Rc8 Qa4 Rc7 Rf5 Rc8 Kg1 g2 Ne4 Rc7 Neg5 Rc8 Bd1 Rc7 Bc2 Ke2 Qf4 d1B Ne6 d2 Ba4 Bc2 Qb4 d1B Bd2 Rc8 Bc3 Ke3 Nef4 Be2 Bb5 Ra1 Nb1 Ra6 Nd2 Ra3 Nf3 Rc7 Ne1 Rc8 Qd6 Rc7 Bd4+ Kd2 Kf2 g1R Qc5 Rgg3 Qb4+ Rgc3 Kg2 g3 Bc5+ Rd7 Kg1 g2 Kf2 g1N Kg2 Bed3 Kf2 Ne2 Kf3 Ne4 Kg4 N2g3 Kf3 Bd4 Kg4 Rf8 h8B Nh5 Be5 Nef6+ Kg5 Bg1 Bed4 Rh8 Be3+ Kd1 Bd2 Bd4 Re5 Rc4 Qa4 Bf2 Ba5 Rcc3 Qb4 Rd4 Red5 Re4 Kf5 Bd4 Re5 Re2+ Kg5 Ne4+ Kf5 Rg2 Red5 Be2 Re5 Kd2 Red5 Be8 Re5 Qh4 Ke6 Bf7+ Kd7 Qg5 Rf5 Qf6 Kc7 Qe5+ Kd7 Qe8+ Kc7 Nef6 Kd6 Qe7+
4n1br/6RB/NbR2r2/1q3b1p/R1n1kr1B/qQr1pp2/1P2n3/NN3B1K w - - 0 1 illegal: No proof kernel
1R1R3q/kBnB2NQ/N1P1r3/5b1p/5b1R/n1n3pr/n1NBq2p/2K3br w - - 0 1 illegal: No proof kernel
nB1r2B1/1kqn4/1pR1q3/1NRRrBnp/3Q2q1/rq1bP1p1/1N3b2/5K1N w - - 0 1 illegal: No proof kernel
q3Q2n/6p1/1Bp2P2/rbn2q1R/2r1rR2/b2NnR1B/k2Bpn2/1NK2N1q w - - 0 1 illegal: No possible last move
1N2N1Qb/3rp2b/q3PB1R/rp2r1nR/4p1R1/8/2kqN1nK/2Bn1bbB w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 Qd3 cxd4 Qe3 f5 Qe4 fxe4 c4 Kf7 f4 Ke6 Kf2 g5 Kg3 d5 a4 b5 h4 d3 a5 b3 a6 d4 c5 Kd5 c6 Kc4 h5 b2 h6 Kb3 h7 d2 a7 d1R f5 d3 c7 d2 f6 Na6 f7 Nb4 Kh2 g3+ Kg2 g4 Be2 Bg7 f8B Nh6 Rh2 Nc2 Kh1 Nf7 Bf3 Bf5 c8N Ne1 e6 Ng5 Nd6 Ng2 Rh5 Kc2 Nc3 b1B Na4 Rg8 h8R Bh7 Nb2 Qc8 Ra3 Qa6 Na4 Ba2 Ne8 Bc4 Nb6 Bf1 Ne2 Bf6 Bh6 Rf8 Rg8 Bh8 Nd7 Rf5 Bf8 Re5 Rd3 Ne1 Bg7 g2+ Kh2 g1B+ Kg3 Ng2 Nb8 Bc5 Kh2 g3+ Kh1 Bb6 Bf6 Bg1 Rd5 Re1 Rh6 d1N Nc6 Rd8 a8Q Rd6 Nb8 Rd7 Nc3 Re3 Ne2 Ra3 Rgg6 Ra5 Rg7 Nf4 Rg8 Be3 Rgg6 g2+ Kh2 Bb6 Rh4 Bc5 Rgh6 Be3 Rg4 Ba7 Kg3 g1Q+ Bg2 Qe3+ Kh2 Qd4 Bh1 Qb2 Rd3 Qd4 Rdh3 Qd2 R3h5 Bf2 Qa7 Ng2 Qe3 Nf7 Qg5 Bd4 Qg6 Ng5 Qg8 Bg1+
q4N2/1kpp1r1b/1b2pR1b/3n1PN1/2r1br2/nB2R2q/1B2N1nQ/B3K1R1 w - - 0 1 illegal: No proof kernel
1b3Nb1/1pq1rBq1/5B2/k1Prb1R1/pb1rp2n/2Q4n/N2KR1qR/4B2N w - - 0 1 illegal: No possible last move, all moves rejected
1kN2N1b/5pB1/p3p1P1/3BR2R/4p3/1nb3nr/K1qR1qbN/B1qrn1Q1 w - - 0 1 illegal: No proof kernel
2rnR1B1/1QKR4/N3b1p1/p1nqN3/3BbN2/br3p2/pr1r1P1k/B1n1R3 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 cxb4 a4 bxa4 g5 d5 g6 dxe4 Bc4 hxg6 Bd3 g5 Bf1 g4 Ke2 Kd7 Ke3 Ke6 Kf4 a5 d4 f5 h4 b3 c4 g6 h5 e3 h6 b2 h7 g3 c5 a3 c6 a2 c7 g2 Rh4 e2 Na3 e1N Bb5 b1B Rg4 Nh6 Ne2 g1R Qd3 Nf7 Rh4 Rg3 Qf3 Nd7 Nc2 Nc5 Nb4 Be4 Bb2 Qd5 Na6 Rb8 Bc4 Nd8 Qh1 Bd7 c8R Rgb3 Qg2 Rg8 h8B R8b6 Rh7 Ned3+ Kg5 Rb7 Re1 Nc1 Ba1 f4+ Kg4 Rb2 Ra8 R7b3 Qh1 Nc6 Re8 Nd8 Rg7 Bc8 Qh7 f3 Nf4+ Kf6+ Kg3 e5 Rd7+ Kg5 Qg7 Qc6 d5 Rd2 d6 Qd5 Rc7 Be6 d7 N5d3 Ra7 Ba3 Rc7 Nc5 Rb7 Nf7 d8N Rf8 Nc6 Nd8 Rd7 Rdb2 Kh2 Kg4 Qh7 Bc2 Qf7 e4 Bd4 e3 Ne5+ Kh4 Qg7 e2 Qf7 Be4 Qg7 Kg5 Kg3 Rh8 Nfd3 Kh5 Kf4 Kh4 Qf7 Kh3 Qe7 Ncb7 Qb4 Nc5 Qb7 Qd6 Bd5 Kh2 Bc4 Bh3 Bg8 Be6 Kg5 Qd5 Kf6 Rd2 Ke7 Rbb2 Nf4 Rb3 Rg1 e1R Rf1 Ree2 Re1 Qc4 Kd6 Qd5+ Kc7 Rdb2 Nfd3 Red2 Nf4 Rdd3 Bh7 Nf7 Rg8 Rdd2 Rgd8 Re8 Bg8 Rf8 Re7 Re8 Rdd7 Ra8 Re8 Nd8 Rd6 Rb8 Rd7 Rc8+
2r3B1/Rr3bQK/1Npn4/1k6/1qnp1r2/p1P1R1Bb/1p3NN1/Bn2br1R w - - 0 1 illegal: No proof kernel
B2Rnb1r/QBpNqn2/p7/3P1p1k/2nKbpNB/1b3R2/1RrN1n1r/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 a3 e4 h3 g4 h6 d4 h2 b4 a2 b5 f6 b6 Kf7 b7 Kg6 g5 c3 e5 a6 e6 c2 e7 Rh7 e8R Qe7 Nd2 Nd7 b8N Ne5 Bg2 Nf7 Rb1 a1N Nd7 Nb3 Nh3 Na5 Rf1 h1B Rb2 Nc4 Bb7 Be4 Rd8 Rb8 Ke2 Kh5 g6 f5 g7 Rh8 Rf3 Nf6 g8B Ne8 Nf2 Rh7 Ng4 Ra8 Nc5 Be6 Nd7 B6d5 Qg1 Rc8 Rb1 Be6 Bb2 c1R Ba3 Rc2 Bd6 Rh8 Be5 Rb8 Bf6 B6d5 Ba8 Rbb2 Bg5 Nce5 Qf2 Bb3 Bh4 Nc4 d5 Kg6 Qa7 h5 Bg5 Ra2 Rb2 h4 Bf6 h3 Bh4 Nfd6 Be6 h2 Ndf6 h1N Bc8 Nf7 Nd7 Kh5 Bcb7 Nh6 Rf1 Nf7 Rf2 Bf3+ Kd3 Bg2 Kd4 Be4 Rf3 Nf2 Nf1 Ra1 Nd2 Rh1 Rc3 Rh3 Rf3 Rh2
3B2NR/k7/n2rQ2B/1qnq1p1b/R1Pn2p1/b4Rbp/B1pr4/N1K1N2b w - - 0 1 illegal: No proof kernel
2Nr1Q2/5q2/2R4p/2rBbn1b/nkBn3N/pp1RB3/Rbpb1KNP/7q w - - 0 1 illegal: No proof kernel
7q/1B1qRp2/4q1P1/b1n1QRr1/p3bp2/pN1Nn2K/RBN4n/2rq1Bk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Nh3 a3 Kf2 d5 e4 Ke7 b4 Ke6 g4 Ke5 Kg2 a5 c4 h5 b5 d3 b6 Kd4 e5 d2 b7 Ke3 e6 a4 g5 d4 c5 d3 c6 Nf6 e7 Bf5 e8B Ra5 c7 Na6 b8N Ng4 c8R Bb4 Bb5 Qd7 Rc5 Rc8 Nf2 h3+ Kg1 h2+ Kg2 h4 g6 Rc7 Be2 h3+ Kf1 Rc8 Qe1 Bc3 Bb2 d1N Rd5 d2 Nc6 Bb4 Nd4 Rc1 Rg1 h1Q Bc6 Qe4 Bb7 h2 Nd3 h1Q Ra2 Qh8 Re5 Rd5 Re7 Qee6 Kg2 Nc5 Rh1 Bc3 Rh5 Ba5 Kh3 Nh2+ Kh4 Bg4 Bf1+ Be2 Nc2+ Kf3 Ndb4 Bd3 Qe4+ Kf2 Qf5 Qb5 Kh3 Be4 Nd3+ Kg1 Ba8 Qec6 Bb7 Ne3 Qe6 d1Q Nd2 Rf5 Qe5 Qe6 Nb3 Qbd7 Qd5 Rg5+ Qf5 Rg4 Qe5 Qhe8 Rf5 Rg5 Nde1 Qed8 Nd3 Qh8+
n3br2/Nq2p2p/5BR1/pn3QRr/1nn2K2/N3bp2/Pb2N1B1/1Rqk2B1 w - - 0 1 illegal: No possible last move, all moves rejected
1q2B1q1/r2pQ3/RN2pr2/1q2Nk2/2bBb1n1/2b1n1P1/pK2N2p/1R2b1RB w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 f4 Kg6 c4 h5 Kc2 a5 b4 a3 g3 d3+ Kc3 e3 c5 a4 c6 a2 c7 a3 b5 h3 b6 h2 b7 e6 Nd2 h4 Bh3 e2 Nb1 e1B+ Nd2 Rh6 Bb2 Na6 b8R Ra7 Ra8 Nb4 Kb3 Nd5 Ne2 Ngf6 Rb1 a1Q Rg1 h1B Bd4 a2 Nc4 d2 Nb6 Bb4 Bg4 h3 Bh5+ Kf5 Be8 Ba6 c8B h2 Bb7 Qb8 Qc2+ Bd3 Qc5 Ng4 Qe7 Rf6 Bc6 Nde3 Bf3 Rb7 Ra6 Ra7 Bd5 Bg2 Ba8 Bf1 Bh1 Be4 Rb2 Qc1 Rb1 Qc5 Kb2 d1Q Nc8 Ne5 Nb6 Kg4 f5 Qb5 Nf4 Bc4 Ne2 Rf7 f6 Kf5 Nf4 Qg4 Ne2 Rf8 f7 Qg7 Nc3 N5g4 Ne2 Rh8 f8N Rh6 Ng6 Qg8 Ne5 Rg6 Nd3 Rf6 Ne5 Bbc3+
2r3B1/1n1qnBr1/rp3p1K/2kp1R1N/1b1r4/2Bb1NPR/RN2p2n/Qn6 w - - 0 1 illegal: No proof kernel
3B3k/1BQR1p2/5K2/1pnrR1r1/1nb1N1b1/1p1p1RP1/B3n2b/nqN2bN1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 b5 e4 h5 a4 b3 c4 h3 c5 h2 c6 h4 a5 d3 c7 h3 a6 d2 a7 d4 e5 Bd6 Ke4 Kf8 e6 Kg7 Kf5 f3 Ra4 f2 Ra3 Nd7 e7 Rh5+ Ke4 Kh8 e8R Rd5 Bd3 f1B Qc2 d1N Nc3 Ne3 Re5 Ne7 Na2 Nc6 Qc3 Rb8 a8B Nc2 Kf5 N6b4 Bb7 Na1 Bb1 d3 Qc4 Qh4 Ra7 Qe1 Bg5 Nc5+ Kf6 Bg4 Nc1 Rg8 c8N Bb8 Bh4 Rg5 Nd6 Qd1 Qf4 Qc2 Ba2 Qb1 Ne4 Bd6 Nge2 Bb8 Rg1 h1N Qh2 Ng3 Rh1 Bc7 Ng1 Ne2 Qf4 h2 g3 Bb6 Qd2 Ne6 Qc2 Be3 Qc7 Nc5 Ra6 Bf2 Rd6 Bd4 Rd7 Bf2 Nh3 Bd4 Rg1 h1B Rg2 Bg1 Rf2 Bh2 Rf3 Rg7 Bg5 Bhg2 Ng1 B2h3 Bh6 Rg5 Bf8 Be6 Be7 Bhg4 Bd8 Rd4 Qb6 Bc4 Qc7 Rd5
5R1q/k3pn2/3QKBb1/2pN1Pbp/B2rN1n1/B4np1/1R1np3/n1rNR3 w - - 0 1 illegal: No proof kernel
n2b1N1K/5rp1/1p1BR3/R1B1nN1p/R1Qrp3/1n3N1B/1qp2Prn/2k4b w - - 0 1 illegal: No proof kernel
8/1pn1p2R/2pB2N1/rN2KbPn/4RpNB/1k1qR2Q/pnbnrb2/3B4 w - - 0 1 illegal: No proof kernel
k1bN1q1n/1N1ppB1B/p7/3pbn2/4ppqr/Kr1RN1p1/1RP3QR/B7 w - - 0 1 illegal: No proof kernel
5bk1/2B1q3/r2b1b2/3KN1B1/2r1P3/2BQn2N/1b2bpQ1/1R1RqnQ1 w - - 0 1 legal: proof: b4 h5 c4 a5 f4 d5 cxd5 e5 g4 a4 gxh5 exf4 b5 f3 e3 b6 Be2 fxe2 a3 Bxa3 Qc2 Bf8 Qg6 a3 Qxb6 Qd6 Kf2 Qd8 Qa7 Nd7 Qb8 Nxb8 Kf3 e1Q Ke4 g5 h4 c5 d4 c4 h6 c3 h5 g4 h7 a2 b6 c2 h6 g3 d6 f5+ Kd5 Kf7 e4 f4 d7 f3 b7 g2 Na3 f2 Nc4 Ra6 Bg5 c1B Rb1 a1B Nh3 Nc6 b8B g1B Bc7 Qe7 d8Q Na5 Qd7 Bcb2 Qg4 Bh2 Qg2 Nb3 Ne5+ Ke8 Rg1 Bg4 Rf1 Be2 Rg1 Q1b4 Rgd1 Nd2 Nc4 Kf7 Bgf4 Ra8 Ng5+ Kf6 Kc6 Rd8 d5 Be5 d6 Nf1 d7 Qe1 Qg1 Kg6 Bc1 Nf6 Bd2 Rg8 h8B Bab2 h7 Ng4 Bf6 Qb4 h8Q Qe7 Bc3 Nge3 Qh3 Rh8 Qhg3 Rh6 Nh3+ Kh7 Q3g2 Ra8 d8Q Ra4 Qd7 Rg6 Qd6 Kg8 Bg5 Re6 Kc5 Bf6 Kc6 Re5 Qd2 Rea5 Qd3 Bd6 Ne5 Ra6+ Bb6 Nf5 Kd5 Rc4 Bc7 N5e3+
5r1Q/1b2Nq1b/4nr2/3N1B2/k1p1pKQn/2P3RN/1b2r2B/1B1b1R2 w - - 0 1 legal: proof: b4 e5 d4 h5 g4 f5 e4 fxe4 dxe5 a6 b5 axb5 gxh5 c5 a4 bxa4 Rxa4 b6 Ra1 c4 Qd5 Ra3 Qa8 Rxa8 Ke2 d5 Ke3 Kd7 f4 Kc6 h4 Kb5 f5 g5 c3 d4+ Kd2 d3 Ke3 d2 f6 d1B f7 g4 e6 g3 e7 g2 e8B+ Qd7 h6 Nc6 h7 Bb7 h5 Nh6 Nh3 g1R Na3+ Ka4 Nb5+ Ba3 f8N Qf7 Bd3 Nf5+ Kf4 Ncd4 h6 Rg6 Bd7 Bh5 Rf1 Nh4+ Bf5 Rf6 Nc7 b5 Nd5 b4 Bb1 b3 Ng6 b2 Nge7 Rhf8 h8Q Bg6 Qg8 Bh7 Qg4 Rab8 Be3 Rbd8 Bg1 Ne6+ Ke5 Rd6 Bh2 Ra6 Rf3 Rb6 Rg3 Rb5 Bd3 b1B Bc2+ Rb3 Bd3 Ba2 Rf1 Rb2 Bc2+ Bb3 Bb1 Bg8 h7 Re2 h8Q Bh7 Nhf4 Bd1 Nh3 Nd4 Kf4 Bc1+ Ke5 Bb2 Kf4 Ne6+
3br1bQ/n3R3/q2rRN2/1n1nKp1Q/P1r5/k2N1pR1/4B3/Bn2Q3 w - - 0 1 legal: proof: d4 g5 h4 e5 f4 a5 b4 axb4 g4 h5 hxg5 exf4 gxh5 d5 e4 dxe4 c3 c5 cxb4 cxb4 d5 e3 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 a4 b5 d6 f5+ Ke5 f3 g6 e2 h6 e1R+ Qe2 b3 g7 Kb4 d7 b2 h7 Ra6 Bg2 Nf6 g8R Qa5 d8Q Nd5 Rh6 Be6 Bf1 Rd6 Nh3 Be7 Rg3 Bg8 Nc3 b1N Qe8 Qa6 Bb2 Bd8 Qh5 Rc1 Qe1 Na3 Be2 Kb3 Rf6 b4 Ne4 Nb5 Re6 Rc4 Rd1 Ka2 Nhf2 b3 Ba1 b2 Nd3 b1N Nf6 Ka3 Re7 Be6 Rc1 Re8 h8Q Bg8 Re6 Rg4 Rc7 Rc4 Nh7 Ne3 Rce7 Nc6+ Kf6 Nca7 Ke5 Nd5 Nf6 Qb6 Nh7 Qc6 Nf6 Qa6
b4k2/2K2b2/3br1r1/4b1QP/r1QB4/nNq1B1bQ/N6b/2RNnRn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 a5 e4 g5 Ke2 f5 Kd3 c5 Kc4 g4 d4 a4 b4 a3 b6 a2 Kb5 f4 h5 f3 e5 f2 e6 f1B+ Qe2 c4 d6 c3 e7 c2 b7 Na6 Kc6 Nc7 b8B Nb5 d5 Ra4 Qc4 Be6 Bf4 c1B Nh3 g1N Be3 g2 Nf2 g3 Nc3 Bf7 Nfd1 Nf6 Bba7 Rh6 Bad4 Na3 b5 Qa5 b6 Ng4 b7 Nf2 b8N Nd3 Na6 Ne1 Nc5 Re6 Nb3 Qb4 Rb1 a1B Na2 Qc3 Kc7 Bd2 Rc1 Bg7 Rh4 Be5 Rf4 Be2 Rf1 Bf3 Kc8 Nh3 Kb8 g1B Kc7 g2 Nc5 Bg6 Nb3 Kf7 e8Q+ Kg7 Nf2 Bh2 Qd7+ Bf7 Nd1 g1R Qc8 Rg3 Qd7 Ng1 Qc8 Bf6 d7 Be5+ d6 Rgg6 d8Q Ba8 Qg5 Bb2 Qd7 Kf8 Qc8+ Re8 Qh3 Beg3 Qe5 Ree6 d7 Qd3 Qf4 Bb4 Qe5 Qc3 d8Q+ Re8 Qg5 Ree6 Bb6 Qd2 Qef4 Bd4 Qfe5 Qc3 Qef4 Bf6 Bbd4 Be5+ Kd8 Bg7 Qfc7 B7e5 Q7c6 Rd6+ Kc7 Rde6+ Qd6+ Bbxd6+
r1r1R1Rr/1rN1r1BQ/2N5/P3nqN1/1Q2r3/2qq4/2bkr1R1/2q2B1K w - - 0 1 legal: proof: b4 e5 d4 g5 h4 gxh4 f4 exf4 a4 c5 b5 cxd4 a5 Ba3 Bxa3 Na6 b6 axb6 Bb2 Nc5 Bc1 Nd3+ Kd2 Ne1 Kxe1 b5 Kf2 Ke7 e4 Ke6 g4 Ke5 Kg2 d5 c4 f5 c5 h5 c6 Rh7 g5 d3 g6 Kd4 e5 f3+ Kh2 d2 c7 Ke3 g7 f4 e6 h3 e7 f2 e8Q+ Ne7 g8R d4 Be2 f1Q Qa4 f3 Na3 f2 Qg6 h4 Nb1 d3 Qf6 b4 Qd1 b5 Bh5 b3 Rg4 b2 Rb4 Nc6 Rg4 b4 Qa4 b3 Ra3 Qd4 Qh8 Bf5 Nc3 b1Q c8N b2 Qb3 Qe2 Ra2 f1R+ Rg2 Re1 Nd6 Qc2 Qd8 b1R Ba3 d1Q Bb4 d2 Nc8 Qdc1 Qdg8 d1R Nf3 Rd2 Nb5+ Qdc3 Bf8 Rc7 Nca7 Rcc8 Nc7 Bh7 Qa4 Rb7 Rb2 Rd7 Rb6 Ne5 Re6 Kd3 Re8 Re7 Rf2 Bf5 Nd4 Kd2 Qb4 Qe4 Qh8 Qg4 Nac6 Bc2 Rf1 Qf5 Kg1 h2+ Kg2 h1R Nde6 Qf7 Rg1 Qf5 Bg4 Rh3 Qh5 Rf3 Bh3 Re3 Kh2 Re4 Bf1 h3 Rg8 Rcb8 Kg1 Rc8 Ng5 h2+ Kg2 h1R Bg7 Rhh4 Qg6 Rh8 Qh7 Rba7 Kh1 Rb7 Rf3 Qc4 Rf2+ R1e2 Rg2 Qd3
1R3q1Q/1N1bPnrn/5pkq/n1bR3N/N1B1bn2/2K5/B5B1/2Q2q1q w - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 a4 a5 f4 g5 f5 gxh4 bxa5 e5 a6 b4 Bf4 exf4 a5 Ra7 Qd2 Rb7 Qd1 Rb6 f6 Qxf6 axb6 Qd8 Kd2 d5 c4 h5 e4 f6 g4 Kf7 a7 f3 a8N h3 e5 h2 g5 f2 c5 d3 c6 b3 c7 d4 e6+ Kg6 b7 h4 Ra3 b2 Bh3 f1Q Nc3 b1B Na4 Nh6 N4b6 Nd7 b8Q Rh7 Nc4 Nf7 Ra5 Rg7 Qc1 Bc5 e7 Nf8 Bg2 h3 Nd6 Bd7 c8B Nh7 Ba6 Qf8 Ne2 Bc2 Rg1 h1Q Bc4 h2 Ng3 Bb1 Nb6 Bc2 Qd1 Bb1 Na4 Bc2 Kc1 d2+ Kb2 Be4 Qc1 d3 Nh5 d1N+ Kb3 d2 Nb7 Nf2 Kc3 Nh3 Qc8 Kf5 g6 Nf4 Ra8 Kg5 Rb8 d1N+ Kb3 Ne3 Kc3 Qf2 Rd1 Qff1 Rd5+ Kh6 Ba2 Nc4 Qe8 Na5 Bc4 Rg8 g7 Kg6 Ba2 Qhg1 Qd8 h1Q Qc8 Rh8 g8B Qgh2 Ng3 Qhh6 Nh5 Nd6 Be6 Rg8 Qd8 Rg7 Qc8 Qf7 Qh8 Qg8 Rd3 Qe8 Bec4 Nf7 Rd5 Qf8
B7/rNbKr3/N2n4/2B1N1qn/1r2pPBk/n3bQ1r/R1p5/5rQR w - - 0 1 legal: proof: b4 a5 h4 axb4 a4 d5 e4 dxe4 c4 g5 a5 gxh4 a6 Bg4 Qxg4 b5 Qd1 f5 Qc2 f4 Qb3 f3 Qxf3 bxc4 Qe2 Kf7 Qd1 Ke8 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 Kg5 Ke6 h5 g4 c3 d4+ e3 a7 c4 d5 c2 d6 h3 f4+ Kh4 g5 b3 d7 b2 g6 e2 g7 e1R+ Ne2 h2 Ra2 c3 Ra4 Nh6 g8B Nf7 Rd4 Nd6 Rg1 h1R Bh7 Rh3 Nd2 b1N Nb3 Na3 Be3 c1B Bg2 c2 Bf5 Bg7 Rh1 Be5 Bg1 Be3 Bg4 Rf1 Qb1 Rh7 Ra4 Qa5 d8N Nd7 Be4 Nf6 Nc5 Rb8 a8Q Rb4 Ndb7 Qd8 Bg6 Qg8+ Bf7 Qg5 Na6 Re1 Ra5 Bb6 Qe8 Bed4 Qc8 Nac4 Qc6 Rh2 Ra2 Na3 Nd8 Ba5 Bf3 Kh3 Bg6 h4 Bge4 Nh5 Nc1 Kg3 Bd1 h3 Bg4 Kh4 Nd3 Rf2 Qd1 h2 Qc5 Rg7 Qf3 Rff1 Be3 Bb6 Rg1 h1R Ba8 Rh3 Rh1 Rh7 Kd7 e5+ Ke6 Ra7 Nb7 Bc7 Kd7 Bb2 Bg1 Bc1 Qcf2+ Ng3 Qh2 Nh5 Bc5 Ree4 Qhg2 Be3 Qg1 Red4 Qgg2 Rd5 Qh2 e4 Qg1 Rf5 Ne5 Rf6 Nd3 Re6 Ne5 Re7+
k3nQq1/1N4pB/7P/4Nqq1/3r3p/2Q4b/BR1b1nK1/NRnr2Qn w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 a4 d5 cxd5 b5 axb5 Bg4 Nf3 Bf5 Ng1 Bc8 h4 axb4 g4 h6 g5 hxg5 h5 Be7 Bb2 Bc5 Bd4 Bd6 Bf2 Bf8 Bh4 gxh4 Kf2 Kd7 d4 f5 e4 c5 d6 b3 h6 b2 d5 c4 e5 f3 b6 c3 b7 f4 Qa4+ Nc6 b8Q c2 Bc4 c1N Rh2 Qg5 Ra3 Nf6 Nd2 b1Q Qc2 Nb4 Rb3 Ra4 Qc3 Qh7 Qb6 Ne8 Rb1 Qg8 Ba2 Nbd3+ Kf1 f2 Ngf3 Be7 Nb3 Rd4 Na1 Bd8 Qbc5 Ba5 e6+ Kd8 d7 Bb4 Qe1 Bd2 Qf8 Kc7 d8N Bd7 e7 Bg4 Nb7 Kb8 d6 Ka8 Kg2 f1N d7 Nf2 Ne5 Ng3 Qg1 Ngh1 d8Q+ Ka7 Qb6+ Ka8 Qb3 f3+ Kf1 Nfd3 Re2 f2 Kg2 f1Q+ Kh2 Qd5 Qc3 Qff5 Rf2 Qg8 Kg2 Be3 Rfb2 Bd2 Qf6 Nc7 e8B Ndf2 Bb5 Ne8 Qf8 Rf4 Nf3 Be3 Rc2 Qff6 Qb2 Qc4 Qfb4 Nd6 Nc5 Rd8 Q2c3 Qg8 Ne5 Ne8 Rcb2 Rd1 Bd3 Rd4 Bh7 Bd2 Nb7 Qff5 Qf8 Bh3+
B1n2KnN/1qBpR3/q1k1bb1P/r3rQN1/1Q6/1r5p/2r4N/2Bb1R2 w - - 0 1 legal: proof: e4 h5 h4 f5 exf5 b5 a4 c5 d4 cxd4 b4 a5 Qf3 axb4 g4 hxg4 Qh3 gxh3 axb5 Qa5 Rh2 Qb6 Rh1 Qd8 Ke2 e5 Kf3 g5 Kg4 d3 c4 b3 f4 b2 h5 d2 h6 d1Q+ Nf3 e4 Kh5 e3 Kg6 e2 f6 e1R f5 g4 b6 g3 f7+ Ke7 c5 g2 f6+ Ke6 c6 Kd5 c7 g1R+ Ng5 Qd2 b7 Kc6 Bg2+ Qd5 Nd2 Re5 Ndf3 Ra5 Nh2 Bg7 f8N b1B+ Be4 Ba2 f7 Rg3 Rf1 Rb3 Re1 Na6 b8B Bb7 c8Q+ Nc7 Rf1 Ba6 Rb1 Bf6 Qb7+ Kd6 Bg2 Be2 Qb4+ Kc6 Bf3 Ne8 Bc7 Qb8 Rb2 Bd1 Re2 Qb6 Re4 Rf5 Re7 Nd6 Bh1 Qa6 Bf3 Bb2 Bh1 Re5 Kg7 Nc8 Ng6 Ba1 f8Q Bd4 Ne4 Qdb5 Qf5 Qbb7 Kf7 Re3+ Ke8 Be6 Kf8 Rb3 Bg2 Be3 Bh1 Bg5 Bf3 Bf6 Bg2 Rh7 Nh8 Rg7 Bh1 Rg1 Ng5+ Rg2 Qc2+ Kd5 Qa4 Qbb6 Qf5 Kc5 Qaf4 Rc2 Ba8 Qbb7 Qb4+ Kc6
NRK5/1P4k1/2B1pn1q/3Qb3/NR2q2q/B3Qb1p/2r5/2rrrRNn w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 d4 c5 h4 cxd4 b4 g5 Ba3 gxh4 Bb2 a5 Bc1 axb4 Kd2 Kf7 g4 h5 f4 e6 b6 e3+ Kd3 e2 Ke4 e1Q+ Qe2 d3 Ke5 d2 b7 d1R g5 b3 f5 h3 f6 h2 d6 h4 d7 b2 Nc3 b1R Ra4 Na6 Bg2 Nc5 Qe3 Ne4 Rb4 Raa1 Na4 Ng3 Bc6 Bg7 Ba3 Rbc1 g6+ Kf8 Rg4+ Qe7 Rb4 h3 d8Q+ Qe8 Ne2 Bd7 Rf1 Nh1 Ng1 Qh4 Qa5 Qd8 Qd5 Qh6 Kd6 Re1 f7 Qdh4 Kc7 Nf6 Kd8 Rc2 Kc7 Rad1 Kb8 Be8 Kc8 Rh7 Rf5 Bh8 Rf1 Kg7 f8N Rcc1 Nd7 Bf7 Ndb6 Rc2 Kd8 Be8 Bb5 Bc6 Kc8 Rdc1 Na8 Rcd1 Qh5 Bf3+ Bc6 Nf2 Qhc5 h1Q Qd6 Qg2 Qdd2 Nh1 Qd5 Qgg4 Kb8 Qe4 Kc8 Kf8 g7+ Kf7 g8R Rg7 Ne2 Rg1 Rf8+ Kg7 Rd8 Rcc1 Re8 Rg2 Ng1 Rge2 Kc7 Rb2 Rb8 Rbc2 Kc8 Ng4 Rb3 Kg8 Qa5 Be5 Qd5 Nf6 Rb4 Kg7
4BrNq/1n1q1q2/1R1R3B/1K2QR2/1bPQ1qn1/1q2q2q/1N5b/r3r1Bk w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Nd2 Ba6 Nb1 axb4 Bd2 b3 Be3 b4 Bc1 Bb5 axb5 Qc8 Bh3 Qc7 Bf1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Ke4 h5 g5 h6 f5 c3 f3 b6 d5+ Kb5 g3 h7 g4 c4 g2 e3 f4 b7 f2 Rh4 g3 Qe1 b2 Qd2 b3 Qe2 d3 Na3 b1R Rh6 f3 Nc2 b2 Qd2 d4 Rc6 Nf6 Ra4 Bb4 Rb6 Ng4 Raa6 Rf8 h8Q Nc6 b8B Na5 Ne2 g1Q Qh4 g2 Bf4 Nb7 Qc3 d2 Ne1 d1Q Bh6 d3 Nf4 d2 Be2 f1Q Ng6 f2 Nd3 Qb3 Ne7 d1Q Ng8 Qd4 Rd6 Qh8 Rab6 Raa1 Qd8 Qh2 Qdf6 g1B Qfd4+ Kf5 Bf3 Qf4 Bc6 Bh2 Be8 Qh3 Qe1 f1Q Bd2 Ne5 e4+ Kg4 Be3 Kf3 Bg1 Ng4 e5 Kg2 e6 Kh1 e7 Qf7 Qee5 Q1f4 Be3 Rc1 Bg1 b1Q Nb2 Q1a2 Bd7 Qe1 e8R Qee3 Rd8 Rcb1 Be8 Re1 Rf6 Qa8 Rf5 Qc8 Rdd6 Qcd7+
2R3rn/b2N1b2/3rq1Q1/Nk6/3Q1q2/bB1PQR1q/2n3bb/K1Rb1Bn1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 e5 Ba3 exf4 axb5 d5 b6 dxc4 b5 Nh6 Bd6 Ng8 Bb4 axb4 g4 Kd7 e4 c5 d3 f5 Kd2 h5 Kc2 f3 Kb2 c3+ Kb3 c4+ Kc2 b3+ Kc1 b2+ Kc2 f4 e5 f2 g5 h3 b7 h4 g6 f3 b6 Kc6 g7 h2 e6 h3 e7 Qe8 Bg2 f1Q Qe1 Ra6 Nd2 b1B+ Kc1 c2 Kb2 c1B+ Kc3 Bc2 Qe4+ Kb5 Ne2 f2 Qd4 Be6 Nf3 Be3 Kb2 Nd7 b8R Bf7 b7 Ne5 Nd2 Rd6 Rb1 Nh6 g8Q Nf3 Rc1 c3+ Ka1 Ng1 Qg6 Bd1 Qa7 c2 Rd8 Rg8 Nc4 Bg7+ Qd4 Be5 Rc8 Qc6 Qc3 Ba7 Nf4 Qd5 Nh5 Qe6 Nf6 Bg3 Nd7 Bf4 Nb2 Bg3 Rb1 c1B e8B Be5 Nc4+ Bb2+ Ka2 Bf4 Ra1 Ba3 b8Q+ Rb6 Be4 Ka6 Qgf6 Bg6 Qe1 Rd6 Qbb2 Nf7 Qg5 Nh8 Qd4 Nf3 Rc1 Bf7 Nf8 Be5 Rg1 h1B Ba4 h2 Bb3 Kb5 Rg3 Ng1 Nd7 Bhf3 Ba8 h1Q Na5 Qhh3 Qg6 Bd5 Re3 Bh2 Ka1 Bh1 Bf3 Bg2 Bh5 Qe2 Bg4 Qd2 Be2 f1N Rf3 Qf4 Qef2 Ne3 Bf1 Nd5 Qd2 Nb4 Q2e3 Nc2+
1n3NRQ/7Q/r1n2bRr/3Qrkb1/nKB1nq1r/3qP3/4BN2/3n1B1r w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h6 Qd3 b6 Be3 Bb7 Nb1 Be4 Bg5 f4 Qd1 Bf5 gxf5 hxg5 Kd2 Ke7 a4 Kf6 h4 d5 c4 g4 h5 g5 c5 g3 h6 d3 a5 b5 h7 b3 Kc3 b4+ Kb2 g2 c6 f2 a6 d2 c7 d4 c8B g4 a7 d3 Nf3 g1B Bh3 f1R Qc1 d1R Ra2 g3 Bg2 d2 Ra4 Ne7 Qc3+ Bd4 e3 Nec6 Na3 Be7 Ng5 f3 Nh3 f2 Nb5 Qd5 Rh2 Rh1 Bf1 g2 Ra6 g1R Be6 Rg6 Rg2 Rh6 Nc7 Bd8 Be2 f1Q Rg8 Qf4 Nf2 Qc4 Bd5 Qd3 Bc4 R1h5 Rb6 Rdh1 Ne6 R1h4 Nf8 d1N+ Kc1 Ke5 f6 Kf5 f7 Bg5 Qc2 b2+ Kb1 Rh1 Ka2 b3+ Ka3 b1N+ Ka4 b2 Qd2 Nd8 Kb4 Nbc3 Rbg6 b1N Qa2 R5h4 Qa5+ Be5 Qd5 Nd2 Bf1 Na4 Be2 Nd7 Bf1 Ne4 Be2 Rc8 a8B Nb8 Bc6 R4h5 B6b5 Rc6 Bf1 Qc2 Bce2 Qd3 Bc4 R1h4 Ne6 Ra6 f8Q+ Nf6 Qe7 Ne4 R8g7 Re8 h8Q Rh1 Qeb7 R5h4 Rg8 Re7 Nf8 Ree6 Qd4 Bef6 Qdd5+ Re5 Qbh7 Ndc6+
5R2/1nr1QBN1/1R5K/2r1Rb2/1N3r2/qBN3br/q2kq1PQ/1n2q1nr w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Bd2 exf4 Bb4 axb4 a5 b6 axb6 Ra4 Nc3 Ra6 Nb1 Ra8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 Kh5 Ke4 c4 Ke3 c5 d5 c6 f5 b7 f3 c7 h3 b6 h2 Qe1 b3 Qg3 d3 Nh3 d2 Na3 d1R Qg5+ f4 Qh4 f2 Rc1 f3 Qa4 d4 Qe8+ Qe7 Qg6 d3 Ng1 d2 Qf5 b2 Qg6 b1N Rc6 Nd7 b8R Nc5 b7 Nf6+ Kg5 h5 Ra6 h4 Ra7 h3 Qg8 Rc1 Ra4 d1Q Qf7 Ra5 Rd4 Qe1 Rd8 Bf5 c8B Ng4+ Qf6 Bg7 Be6 Ne5 Rf8 Kd2 e4 Qd6 Bb5 f1R Ba4 f2 Qe7 Qd3 Nc2 Qa3 Bf7 Nf3+ Kf4 Rh5 e5 Bf6 e6 Bh4 Ne2 Ng1 Nc3 Qa2 Rbe8 Ra7 b8Q Rc7 Bb3 Nb7 Nb4 Rh7 Nd1 R1c5 Nc3 Rh5 Qf6 Qc1 e7 Qca3 Qe5 Nf3 Rg1 h1Q Qa7 h2 Rb8 Bf6 e8N Rh3 Ng7 Bh4 Rbe8 Rd1 Qe7 f1Q Qb8 Qe2 Re1 Ng1 Rc8 Bg3+ Kg5 Bh4+ Kh6 Rc1 Rce8 Rc4 Rc8 R7c5 Rc6 Rf4 Rb6 Rc7 Nb5 R1c5 Nc3 Nf3 Na6 Qg1 Nb4 h1R Qa8 Qgf2 Qc8 Ng1 Qb8 Qd3 Re5 Qe1 Qbe8 Qde2 Qc6 Rd4 Qg6 Rdc4 Qg3 Rf4 Qh2 Bg3+
B4rnK/nr3q2/b3kqn1/q2R1b1R/N1b4q/B1n5/BQP1nN2/3R3Q w - - 0 1 illegal: No possible last move
2Rb1Kb1/P2B2n1/q1q1Q1nQ/2k1q3/1n4rn/qR1nN1R1/3r4/1NB2b1N w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 Nd2 gxh4 Nb1 d5 cxd5 c5 Rh2 cxd4 Rh3 Be6 Rh1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 b5 a4 f5+ Kd3 h3 e4 h2 g5 f3 g6 f2 g7 f4 e5+ Kc5 Ke4 d3 e6 f3 Ke5 h4 d6 h3 e7 d2 e8N b3 a5 b2 d7 b4 Ke6 b3 Kf7 Be7 a6 Qc7 d8Q Be6+ Kg6 Qe5 a7 Na6 Ra4 Nb4 Ne2 Rh4 Ng1 Rg4+ Kh7 Bf6 Bb5 f1B Ra2 f2 Qd3 Ne7 g8R Ng6 Bc4 Rd8 Qe1 d1N Nc3 b1N Qc2 b2 Bd3 Ne3 Bf5 Rd2 Nge2 Bd8 Rg1 h1Q Nd6 h2 Ra3 Qc6 Rb3 h1N Ng3 Bec4 Bc8 Nf5 Bd7 Ng7 Ndf5 Be6 Re8 Bg8+ Kh6 Bg2 Rf8 f1Q Ne3 Nf2 Nh1 Nfd3 Re8 Bh3 Rg3 Qff6 Qcd1 Bf1 Qde2 Qa6 Qh2 Qfc6 Rf8 Rg2 Qh3 Nd2 Nb1 Nf3 Qh4 Rd2 Qh5 Bb6 Rc8 Nfh4 Qe2 Bd5 Kh7 Bd8 Qh6 Bc4 Qf2 Be6 Qf7 Qa3 Kg8 Bc4 Nc3 b1Q Qe6 Qba2 Nb1 Qa6 Kf7 Q2a3 Kg8 Ngf4 Kf8 Bd5 Qeg6 Bg8 Qe6 Nfg6+
2Q2B2/1n2bR2/1bq2r1n/1b5R/1P2k3/QN4rB/1rr1q3/KnQqNqR1 w - - 0 1 legal: proof: d4 b5 d5 e5 a3 b4 axb4 c6 Bd2 cxd5 Bc1 d4 g4 a5 f4 exf4 b3 h5 Ra3 hxg4 Ra2 a4 Ra1 axb3 Kd2 Ke7 h4 Ke6 c4 Kf5 h5 g5 h6 d5 e3 d3 Kc3 d4+ Kb2 d2 c5 d3 c6 f3 h7 f2 c7 g3 Qe2 d1Q Na3 g4 Kb1 b2 Ra2 g2 Nf3 g1R Ne5 d2 Ng6 g3 Qb5+ Qd5 Qa6 g2 Qf6+ Ke4 Nh4 Qe2 Qg5 d1Q Nc2 f5 Ra7 f4 Nd4 f3 Nb3 Bd7 c8Q Bb5 Rf7 Nh6 Qa6 Qdc4 Qa3 Qc6 Qc5 Rg8 h8R Rg3 Ka2 b1N+ Ka1 Be7 Qg5 Nf5 Rh5 Nh6 Bb2 Ra6 Bg7 Nd7 Bf8 Ra8 Qc5 Rc8 Qc3 Nc5 Qcc1 Kd3 e4 Nb7 e5 Ke4 e6 Rc7 Rh3 Rh1 Rg5 g1B Ng2 Rh2 Ne1 Rc8 Bg2 f1Q Rhh5 Bb6 Bh3 f2 Rg6 Qh1 Rgg5 f1R Rgg7 Rf6 Rgg5 Bec5 e7 Qhf1 e8Q+ Be7 Rgg7 Qec4 Rgg5 Rb2 Qd8 Rc7 Qc8 Qce2 Rg6 Qcd5 Rg8 Rcc2 Rg6 Qc6 Rg8 Rgf3 Rg1 Rg3
5q1q/P1nNRRN1/r1Q2KbQ/qnb1Q3/5r1B/1R1B3b/1rq5/1k2b2r w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 Nd2 hxg4 Nb1 d5 cxd5 c5 Qd3 cxd4 Qd2 Ra6 Qd1 Ra8 Kf2 Kd7 a4 Kd6 h4 Ke5 e4 b5 a5 g5 a6 f5 h5 g3+ Kf3 d3 h6 Kd4 h7 g2 d6 d2 e5 g4+ Ke2 b3 d7 b4 e6 g3 Kf3 b2 e7 b3 e8Q Ne7 Qh5 Nbc6 Na3 Kc3 Nc4 b1R Qh2 b2 Qh6 Nd5 Qh4 Bc5 Na3 Na7 Rh2 Nc7 Ra2 Nab5 Nh3 g1Q Ng5 g2 Rh1 Qh2 Ne6 g1B Ng7 Bgf2 Qa4 Be1 Qh6 d1Q+ Be2 Qb3 Bd3 Qbc2 Rf1 Qhd2 Qe4 Kb3 Qb7 Qa5 Nc4 Rf8 h8Q Rf7 Q8h7 Qh8 d8R Rf8 Ra4 Ra7 Rb4+ Ka2 Qf6 Be6 Rf2 Bf7 Qe4 Bg6 Qfe5 Ra1 Qh1 b1R Qh6 Rb2 Rb3 Kb1 Qc6 Rf7 Re8 Rf6 Kg2 f3+ Kh3 f4 Kg4 Rf5 Rf1 f2 Re7 f3 Nb6 Rf4+ Kg5 Ra8 Nd7 Ra7 Rh1 f1B Rh3 f2 Rf3 Ra8 a7 Bh3 Be3 f1Q Bf2 Rb8 Bg3 Rb6 Bh4 Ra6 Rf2 Rc4 Rf6 Rf4 Rff7 Qf3 Qb6 Qfa8 Qc6 Qaf8 Qcd5 Rf1 Qc6 Rh1 Kf6 Ra4 Be4 Rc4 Bd3 Rf4+
2Qbb1b1/4b3/Q1PnQ1BN/KRrRb3/2qb2b1/4B3/1N4k1/Bbqrr3 w - - 0 1 illegal: No possible last move
2Q2R1n/2b3b1/6kn/NrqBq1p1/1bBQR2b/NB2R3/3n1P2/K1rb2r1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 e4 fxe4 h5 b6 g4 b5 axb5 Bb7 g5 Ba6 h6 gxh6 g6 Bc8 Bg5 hxg5 Kd2 d5 Kc1 a5 b4 h5 Kb2 e5 c4 a4 b6 e3 c5 h4 b5 e2 b7 e1B c6 e4 b6 d3 c7 e3 g7 Kf7 Na3 e2 Qc1 h3 Qb1 h2 Nf3 d4 Qc1 d2 Bh3 d1Q Rb1 d3 Ka2 d2 Rf1 h1N Ra1 Nd7 b8Q Ne5 b7 Qd5+ Qc4 Qc1 Qb3 d1R Nc4 a3 Na5 Bg4 c8B Qc5 Nd2 Rc1 Bf5 Bd6 Bc8 Kg6 Nb1 Bb4 Rd1 e1B Qc4 Nh6 g8B Nef7 Bg2 Ng3 Rd4 Qe5 Be6 Bd1 Rd2 Ne4 Rd3 Nd2 Qc8 Rb8 Bgd5 Rh7 Re3 Nh8 Qd4 Re7 Nc6 Ba5 Bc4 Bac7 Bed5 Re6 Na5 Re8 Nc3 Re7 Rb1 Rh7 Ka1 a2 Nb5 Rd7 Kb2 a1B+ Ka2 Rd8 Na3 Nf3 Rb2 Re8 Rd3 Qh2 Bb3 Bb4 Bdc4 Re1 Qc3 Bg3 Bgd5 Bcf4 Re2 Nd2 Re4 Rg1 Rde3 Bh4 Qd3 Bg7 Qd4 Ra8 Kb2 Ra6 Ka2 Rb6 Kb2 Rb5 Ka2 Nb1 Ka1 Bfe5 b8R Qf4 Qh3 Bc7 Rf8 Qe5 Qc8 Nd2+
2n2Q1R/1q6/1q5q/PBK3kb/R1N2b1n/2r2qqr/Q2NBp1r/Bb2N3 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 Nd2 gxh4 Nb1 d5 cxd5 c5 Rh2 cxd4 Rh3 Be6 Rh1 Bc8 Kf2 Ke7 g4 Kf6 e4 b5 a4 h5 d6 d3 d7 b3 e5+ Kg5 e6 f5 e7 d2 e8B f3 Ke3 b4 Kd4 f2 a5 f4 Ra4 b2 Qc2 d1Q+ Kc4 h3 Qb3 h4 Qe3 h2 Ra2 h3 Be2 f1Q Qc3 b3 Bd2 Nc6 Be3 Nce7 Qe5+ Nf5 Qe6 Qg2 Qf7 Bd6 Kb5 Nh4 Nd2 b1B Ba7 b2 Kc4 f3 Bf2 Qb6 d8N Bf4 Ra4 Ne7 Bb5 Qg3 Bd4 f2 Nb7 Bcf5 Qe8 Bg6 Nd6 Nc8 Qf8 Bh5 Bg7 Qb7 Kc5 Qdb3 Be5 Qb3f3 N6c4 Ra6 Bc3 Re6 Bg7 Re3 Be5 Rc3 Bf6+ Kg6 g5 Kf5 g6 Rh7 Bd4+ Kg5 g7 Rh8 Bd1 Rh6 Ne2 Rh8 Nc1 Rh7 Nd3 Rh8 Rg1 h1Q Be2 h2 Rg2 Qc1 Ne1 h1R Rh2 Rh7 Rh3 Rh2 g8Q+ Bbg6 Qe6 b1Q Qe4 Qbb2 Qc2 Qb3 Qa2 Bb1 Nf1 Qce3 Nd2 Qe6 Be5 Qh6 Bh8 Rc1 Ba1 Qb2 Nd3 Qbf6 Ne1 Rc3 Qh8 Qfa6 Qf8 Qab6+ Kb4 Bhg6 Nd6 Nf5 Ng2 Qhg7 Ne1 Be8 N6c4 Qh8 Rh6 Qhg7 Rd6 R7h3 Rh6 Bh5 Rh7 Qgh6 Rh8 Qd8 Kc5 Nh4 Qe8 Qdf6 Qf8 Qfb6+
1qR1Q3/2nBb2q/n3p1N1/N2r3r/K4Qb1/1N1B1qqq/kP3R2/B2rn3 w - - 0 1 illegal: Other
2R5/3nB3/1rn2Rb1/2B1Qr1q/r1bnrBQ1/1Q4K1/P1pNq1b1/1qk3N1 w - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Bg2 f5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qb3 Ra5 Kc2 Bf4 gxf4 Qe7 Kb2 Ra6 Qd1 Ra8 Kc2 Qd8 e4 Ke7 d4 Kd6 Kd2 f1B Ke3 g5 Kf2 c5 h4 b5 f5 b3 e5+ Kd5 h5 Ke4 h6 b2 f6 c3 d5 b4 f7 c4 f8B g3+ Ke1 g2 Kf2 g4 e6 g3+ Ke1 c2 d6 b3 h7 c3 d7 Bca6 e7 Nc6 e8Q+ Qe7 d8B Bac4 Qh5 Ra4 Bch6 c1R Ne2 g1N Qe8 g2 Kf2 Nf6 Na3 b1Q Qd6 b2 Qd2 Nd7 Ba5 Re1 Qc1 Kd3 Kg3 f2 Bf4 Nf3 Ng1 Qe2 Bb6 Nfd4 Qe6 c2 Be7 Rf8 h8Q Rf5 Qg6 Bf7 Qgh5 Bg6 Bbc5 Kc3 Qh3 Qh5 Qc8 Re4 Nc4 Be2 Nd2 f1B Qe8 Bc4 Qg4 Kd3 Qe1 Qd1 Rh2 b1R Qb8 Qe2 Qe5 Rb6 Qb1 Qg5 Rh8 Qh5 Rc8 Kc3 Qb5 Kd3 Nb3 Kc3 Rd1 Kb2 Rd3 Kb1 Nd2+ Kc1 Qb3 Qh8 Nh3 Qe8 Rf3 g1Q+ Kh4 Qh1 Kg3 Bg2 Ng1 Qeh8 Rf2 Q8h5 Be3 Rg5 Rf6 Rf5 Bf4 Kd1 Ngf3 Kc1 Qe3 Kb2 Qd3 Qb1 Ng1 Kc1 Qa3+ Qb2 Qb3 Qb1
K1BbN1R1/3Bp3/3rb3/BQ5b/1P2n3/NRb2n2/R3rkb1/2Qr1qbn w - - 0 1 legal: proof: d4 b5 d5 f5 a3 b4 axb4 c6 Be3 cxd5 Bc1 d4 g4 h5 e4 fxe4 b3 hxg4 Bd2 a5 Bf4 a4 Bc1 axb3 Kd2 Kf7 f4 Ke6 c4 Kf5 h4 d5 c5 g5 c6 b2 h5 d3 Ke3 g3 Kd4 g2 Kc5 g4 h6 d2 h7 e3 c7 Ke4 Kb6 d4 f5 d3 f6 e2 f7 Ke3 Ra7 e1N Qc2 g3 Ne2 g1B Nf4 g2 Nc3 b1B Qd1 Bg7 f8Q Kf2 Rh4 Nf3 Be2 Nh6 Qg8 Be6 Kb7 Nf5 c8B Ng3 Ra2 Nh1 Rh3 Nd7 Nfd5 Ra6 Qf8 Rd6 Qf5 Nc5+ Ka8 Qf8 Nc7 Ne4 N3b5 Bc3 Na3 Bh2 Bb2 g1B Qc1 d1B Qb5 d2 Ne8 Rg8 h8R Rg2 Bc4 Bd3 Rg8 Bf1 Bd3 Bde2 Bc2 d1R Ba4 Bhe5 Ba1 Bed4 Bb2 Bb6 Ba1 Bd8 Bb2 Bd2 Be5 Bc3 Rhg3 Rh2 Rh3 Bg2 Bf4 R6d2 Bc7 Rd6 Rhg3 Nfd2 Ba5 Bh5 Qg5 Qf3 Bad7 Qd3 Qb5 Qf1 Ra1 Nf3 Ra2+ R6d2 R3g5 Re2 Rd5 Rh4 Rd3 Rf4 Re3 Rf5 Rd3 Rd5 Re3 Rd6 Rd3 Bd2 Rb3 Bc3
BbKb2q1/R2Nqb1Q/3r3n/8/NQb4P/5n1R/k1Bp2r1/1Rb2Brb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf4 f5 e4 a5 b4 a4 h4 a3 c4 a2 c5 d3 c6 g5+ Ke3 g2 Kd4 f4 b6 g3 b7 f3 c7 f2 e5 d2 b5 g4 b6 Qe7 Qf3 d1B Ba6 f1B Rh3 Bc4 Qf1 Rh6 Qf2 Bdb3 Nd2 Nd7 b8Q Bb7 Ngf3 g1B c8B g2 Qe3 g3 Qf2 Bh2 Rb1 g1R Ne4 a1B+ Nc3 g2 Qc2 Bb2 Qh7 Bc1 Na4 Bg7 Ra1 Bf6 Rb1 Bc6 b7 Rg6 Ra1 Nh6 Bb5 Ra6 Qd6+ Kf5 Qb4 Ke6 b8R Bb7 Rb1 Rd6 Ra8 Bc6 Ra7 Ba2 Bb7 Rg5 Kc3 d4+ Kc2 Kd5 e6 Bhf4 Ne5 d3+ Kc3 d2 Ba8 Rg4 Qb3 Bb7 Kb4 Kd4 Ka5 Bbd5 Nd3 Ne5 Ndc5 Nf3 Nd7 Be4 Qb2+ Kd3 Qb4 Kc2 Ba6 Bcd3 Qb8 Qe8 e7 Ne5 Qc7+ Rc6 Nab6 Rd1 Nc5 g1Q Qg7 Bh1 Qd6 Bf7 Nbd7 Nf3 Qh7 Qe3 Bb5 Rdg1 Na4 Qg8 Qb4 Bb8 Bc4 R4g2 e8B Bh5 Bg6 Rd6 Kb5 Bd8 Bf5 Qe7 Kc5 Rd4+ Kc6 Bf7 Kb7 Rd5 Kc8 Rd6 Ba6 Bb2 Qg4 Kb3 Qb4+ Ka2 Bfe4 Bf1 Bc2 Bc1 Bb5 B1c4 Ba6 Bcd5 Bf1 Bc4
5R2/N1Rrq1n1/Q6b/1rNQ3p/Q2bB1N1/bq2Pb1q/1k1K1nB1/3b1b2 w - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Bd2 gxh4 Bc3 b5 axb5 dxc3 g4 Ke7 b4 Ke6 e3 a5 b6 f5 b5 h5 g5 d5 b7 h3 c5 h2 b6 c2 c6 c1B c7 f3 g6 a4 g7 d4 Bd3 Kd5 Ba6 a3 Qe2 d3 Qb2 a2 Na3 f4 Qe2 d2+ Kd1 f2 Nh3 f1Q+ Kc2 d1B+ Kc3 f3 Nf2 Bg4 c8B Nf6 g8N Ra7 Nd3 f2 Nb5 Qh3 Rg1 f1B Nh6 h1Q Nc5 Bf3 Rg7 Ne8 Ng4 Qe7 Bf5 Nc6 b8Q Nb4 b7 Ba3 Qf4 Nd3 b8Q Rd7 Na7 Nf2 Kd2 Rh7 Rb1 a1B Qa4 Bd4 Qbb5 Qg1 Rf7 Bh6 Rc1 Ng7 Rf8 Qgg3 Bc8 Qb8 Qba6 Qb3 Qeb5 Ne6 Rc4 Rf7 Bg6 Ng7 Bh7 Rf6 Qba5 Rb6 Bb7+ Kd6 Bc6 Rb5 Bhe4 Qb2+ Bc2 Rb3 Q5b6 B3e2 Qbb7 Rb5 Ne6 Qb3 Bd3 Rb6 Bg2 Bf3 Rc6+ Kd5 Nc5 Rb5 Qab6 Rb4 Be4+ Kc4 Rcc8 Qg5 Rc7 Qe7 Ke1 Kc3 Qd5 Kb2 Qba6 Rb8 Kd2 Rb5
8/Q1KbqrrB/p4r1B/B2n1rr1/4N3/NbRN4/2P1r1k1/1Q1nRbq1 w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 a4 b5 g3 bxa4 Be3 c5 Bd2 cxd4 Bc1 Bh6 Rh2 g4 Rh1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 h5 b4 f5+ Kf4 Kd5 g6 g2 g7 g3 e3 a3 b5 h4 b6 a2 b7 a6 Nf3 g1R Qe2 g2 Ne1 d3 Qd2 h3 Qf2 h2 Ba3 d2 Bd3 d1Q Qg3 Rh7 Be7 Nh6 g8Q+ Rf7 Q3g5 Ng4 Bf1 Nf2 Bc5 Qe7 Q5g7 Nc6 b8B Nb4 Kg3 Ke4 Q8h7 d5 Qgh8 d4 Bc7 d3 B5b6 d2 Nd3 Nd5 Na3 Bd7 Bf4 Re8 Qb2 Qc1 Bg5 d1R Qb1 Ref8 Bd8 Rd2 Bh6 Nd1 Ba5 Rf6 Be2 R8f7 Bh5 Rf1 Bg6 Re2 Rg1 Rff2 Re1 h1B Qg7 Rf4 Bh7 Rf1 Qg8 Rf4 Qgb8 Rff2 Qa7 g1R+ Kh3 Kf3 e4 Rg8 e5 f4+ e6 Rgg7 Kh4 Kg2 Kh5 Qe8 e7 f3 Kh4 Qf8 e8N Qe7 Nd6 Rf1 Kh5 f2 Ne4 Rg1 Kh4 f1B Kh5 Rg5+ Kh4 Rgf5 Kg4 Qe3 Qbb8 Qf2 Rb1 a1R Rb3 Rb1 Rc3 Rb5 Qbb6 Rc5 Qb1 Nf4 Qb2 Kh2+ Ng3 Bd5 Qa1 Bb3 Qb1 Rc4 Nb2 Rg2 Nd3 Qg1 Kf3 Rcc5 Ne4 Rgg7 Qa1 Rfg5 Qa2 Reg2 Qb1 Nf2 Ke3 Rcf5 Kd4 Kh1 Rd1 Nd5 Re1 Qd8 Kc5 Nd1+ Re3 Rgf2 Re2 Kg2 Re1 Be6 Kc6 Bd7+ Kb7 Qe7 Kb8 Re2 Kb7 Nf4 Kc7 Nd5+
5b2/BRn1R2K/2n4q/3QBNQn/6Qp/1bN1NnPn/1r4rb/1q2k2b w - - 0 1 legal: proof: a4 c5 d4 cxd4 h4 e5 f4 exf4 h5 b5 e3 d3 axb5 g6 c3 gxh5 Be2 h4 Bf3 Be7 Bd5 Bb4 Bb3 Bf8 Bc2 dxc2 Kd2 Ke7 Kd3 Kd6 Ke4+ Kc5 Kf5 Kc4 b4 d5+ Ke5 h5 e4 f5 b6 a5 b7 a4 b5 f3 b6 h3 Bf4 c1Q Qe1 Kd3 c4 f2 c5 f1N c6 d4 c7 h4 Qa5 h2 Nc3 a3 Nge2 a2 Nd5 Ng3 Ne7 Be6 c8Q Nh5 Nd5 Qb1 Ng3 Ne7 Ne2 Na6 b8Q Rg8 b7 Qdb6 Qbc7 Rb8 Qc1 Nc7 Ne3 Bb3 Nc3 Qh6 Re1 h1B Qd5 Rg7 Bg3 f4 Qg4 Nc6+ Kf5 f3 e5 f2 e6 f1N e7 Nd2 e8N Nf3 Be5 Rg6 Nd6 Rg7 Qa3 Rg6 Qac5 Kd2+ Qge4 d3 Qg4 Qc2 Rab1 a1B Qcb4 Qa2 Qg5 Rg7 Qbg4 Bb2 Ra1 Qb1 Ra7 Ba3 Ndb5 Bad6 Nd4 Ra8 b8B Rg8 Bh8 Bh2 Rb7 Ra2 Ba7 Rb2 Be5 Qa2 Ra1 Qb1 Ra3 Ke1 g3 Rg2 Ra2 d2+ Rc2 Qa1 Ra2 d1N Ra6 Nf2 Rab6 Nd8 Re6 Nh3 Re7 Qb2 Ne6 Nc6 Ng7 Qh8 Kg6 Qh6+ Kf7 Rh8 Ngf5 Rh7+ Kg8 Qb1 Re8 Rd7 Re7 Rb2 Qdc4 Rdd2 Qd5 Qe6+ Kh8 Rg2 Kh7 Qh6+
4q1q1/2N2Nb1/Rb1bq1nr/B1r1PQ1q/3N3R/5K1n/2R1B1p1/kb1Q3q w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 g4 h5 f4 hxg4 c3 dxc3 Qa4 exf4 Qb3 Bd6 Qd1 Bf8 Kf2 Ke7 b4 Ke6 e4 Ke5 h4 d5 h5 f5 h6 a5 h7 g5 b6 d4 b5 d3 b7 Kd4 b6 d2 Kg2 g3 Qg4 d1Q Na3 a4 Qh5 c2 Nc4 Kc3 Be2 a3 Bf3 g4 Ne3 a2 Nh3 Q1d5 Rf1 Qe6 Qg5 Ra5 Bd2+ Kb2 Rfd1 c1Q Rf1 Ne7 Rh1 Nd5 Bb4 Nc6 b8N Qde8 b7 Bd6 Be2 Rc5 Qh6 Ne5 Nf1 f3+ Kg1 f4 Ba5 g2 Kf2 Ng6 Kg1 f2+ Kh2 g1B+ Kg2 g3 Kf3 g2 Qg5 Q8g8 Ng3 f1Q+ Nf2 Qd2 Na6 Qfe1 b8R+ Bb7 Rc1 a1B Nd3+ Ka2 Rd8 Bg7 Rc2+ Ka1 Nc7 Ba6 Ne5 Bd3 Nf7 Qdc1 Rd2 Bb1 Nf5 Bf2 Rc2 Qee8 Kg4 f3 Nd4 Ndf4 Rh4 Nh3 Qf5 Be3 Rc8 f2 Ra8 f1Q Ra6 Qh1 Kf3 Bg1 Bd3 Qg5 e5 Qb4 Bf1 Qc4 Be2 Rb5 Nc6 Bb6 Nd4 Rc5 Nd8 Qge6 Nf7 Rg8 h8Q Qa2 Qh6 Rh8 Qh5 Rh6 Qhg4 Qad5+ Qge4 Qda8 Qd5 Qad8 Qb3 Qg8 Qbd3 Qde8 Qd1 Qh5+
Bk1rb1r1/3Q1b1R/3KRqn1/b1r1qNn1/1P4Q1/1N6/p1Q3Nq/q5rB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 Kd7 g4 Kc7 c4 a5 e4 f5 g5 h5 e5 d3 g6 h3 b3 d2 g7 h2 c5 h4 c6 h3 e6 d4 e7 a4 e8B a3 Bg2 a2 Ba3 d3 Qe1 d1R Bh5 d2 Bb2 Nh6 g8N Bb4 Bf7 Nd7 Qe2 Ba5 b4 Rc1 Bg7 d1Q Bg6 Nf7 Nd2 Nf8 Bh7 Be6 Nh6 Rg8 b6+ Kc8 Bb2 Qf6 c7 Kb7 Bg6 Rd8 Nb3 Rc6 Bh5 Ng6 Rb1 Ka8 b7+ Ka7 c8Q Rc5 Bc3 Bd7 Bd4 Be8 Qd7 Qc2 Re1 Ng5+ Kf2 f3 Ke3 f2 Nf3 f1B Nh4 Qd1 Bhf3 Qa1 Qd1 Bc4 b8Q+ Ka6 Qf4 Bcf7 Bb7+ Ka7 Qfg4 Kb8 Ba8 f4+ Kd3 f3 N6f5 f2 Qc2 f1R Re6 Re5 Kc4 Rg1 Bc5 Rd5 Kb5 Re5 Kc6 Rd5 Bf2 Rc5+ Kd6 Re1 Rf1 h1Q Bg3 h2 Be5 Qg1 Rf3 h1Q Rh3 Qhh2 Bh1 Qgg3 Ng2 Rg1 Rh8 Qge1 Rh7 Qexe5#
R3R1RQ/QK2bB2/2rk2np/q3qPn1/4b3/5rQN/Nr6/qqB3rn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 b4 d5 f4 Kd7 g4 e5 c4 a4 f5 h3 g5 h6 g6 h2 c5 e3+ Kd3 a3 b6 e2 c6+ Kd6 b7 e1Q b5 a2 b6 e4+ Kc2 d3+ Kb3 e3 g7 d2 Kb4 d4 Kb5 d3 c7 e2 Bb2 Nd7 b8R Ra3 b7 Ne7 g8Q Ne5 Kb6 Nf7 Qc1 d1Q Nd2 Ng6 Nh3 Ng5 Qb1 Be7 Nb3 d2 Nc1 Rf3 Rg1 h1N Ra8 Qe8 b8Q Bb7 Qa7 Be4 c8Q Qc2 Qc3 d1R Rg4 Rh7 Qch8 Rd2 Rg2 Qea4 Re8 Qd4+ Ka6 Qe5 Ba3+ Qcc5 Qb2 Rc2 Rg1 Qd1 Rg3 e1R Bc4 Rg1 Bf7 Bd3+ Kb7 Qf1 Rb1 a1Q Na2 Rg7 Re1 Rh7 Re4 Qfb1 Ra4 Rg7 Qb5 Qcb4 Bc1 Qa5 Qb2 Rh7 Rc4 Rg7 Rcc8 Rh7 Ra8 Be4+ Bd5 Rf7 Rg2 Rf6 Qgg7 Kd7 Rg4 Rfc6 Bf7 Kd6 Rg2 Qe6 Qc3 Qf6 Qe1 Qfc3 Qg3+ Qce5 Nf2 Nf4 Qh3 Nge6 Rgg8 Ng5 Qg3 Ng6 Nh3 Rxb2+
r2rQ2Q/4qP1q/p1KQNrb1/1N6/3Bn3/nR2nn2/Rr1bkB2/R6q w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 a4 cxd4 c3 g5 Bc4 gxh4 Bb3 b5 axb5 d3 Bc2 dxc2 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kd5 h5 f4 e5 b4 a6 g3 e3 b6 h3 b7 h4 b5 e2 b6 Kg4 f5 h2 c4 h3 c5 e4 f6 e3 f7 Nf6+ Kd4 d5 c6 Ne4 c7 Nc6+ Kd3 d4 Kc4 d3 b8B d2 b7 Bb4 Ra4 Na7 Nc3 Bf5 c8Q Qe7 Kd5 Nb5 Bb2 c1R Ba7 Na3 b8R Rb1 Nf3 e1N Kc6 e2 Nb5 Rd8 Nfd4 Nf3 Ne6 e1R Bf2 Rf1 Bbd4 Bg6 Qd7 Bc3 Qe8 Rb2 Rg1 h1Q Rb7 Nb1 Ra2 h2 Qh8 Na3 Qe8 Kh3 g4 Bb4 g5 Ba5 Qa4 d1N Qb4 Ne3 Qd6 Bd2 Rb6 Qg2 Rb8 Kg4 Qh8 h1Q Rb6 Bf5 g6 Qh7 g7 Bg6 Rh1 Qgh2 g8Q Qg1 Qe8 Qg2 Rh2 Qh1 Rh5 Nfg5 Rh4+ Kf3 Rg4 Ke2 Rg1 Nf3 Rb8 Rfb1 Rc1 Rb4 Rb7 R1b2 Rca1 Ra4 Na7 Ra5 Rb3 Rf5 Nb5 Rf6
2KR4/2r3k1/1R2n3/2b1RqB1/3Q2r1/1r1pPrQb/Qnnb1NB1/2bN2n1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 g5 c4 f5 h4 Kf7 c5 d5 h5 b3 h6 b2 c6 g3+ Kf3 g4+ Kg2 d3 b6 d4 c7 d2 h7 d3 b7 Qd7 Ra6 Ne7 Rb6 Ng6 Nh3 f3+ Kg1 f2+ Kg2 f4 Rc6 Rg8 h8R Bh6 Qa4 d1N Qd4 Ne5 Ng1 Kg7 Rh5 f3+ Kh1 g2+ Kh2 Bd2 Kg3 Na6 b8Q Qf5 Qe3 Ra7 Rh1 Nc5 R1h4 Ne6 Nc3 b1R Qd4 Nb2 Nh3 g1B Bg2 f1R Nd1 Bge3 R4h5 f2 Rb6 Rb7 Kh4 g3 Qa8 Bd7 c8Q Rc7 Qcb8 Bh6 Qa2 Bhf4 Bb7 g2 Ba8 g1B Bg2 Kf7 Rg5 Nf3+ Kh5 Rg7 Rd8 Rg6 Qc5 Kg7 Qd4+ Qf6 Re5 Rg4 Qb7 Bc8 Qbe4 Bg5 Qf4 Qf5 Qh2 Nc4 Qg3 Rb3 Ba3 Bc1 Be7 Bgd2+ Bg5 Nb2 Rc6 Re1 Rb6 f1N Nhf2 Ne3 Qdf4 Kf7 Qd4 Rf1 Kh6 Nc2 e3 Bh2 Kh5 Ng1 Kh6 Qf4 Kh7 Qf5+ Kh8 Kg6 Kg8 Bd7 Bf6 Kh6+ Kf7 Kh7 Ke7 Kh6 Nh1 Rf3 Nhf2 Kh7 Bg5 Kg7 Qh3 Bg3 Kd6 Bh4 Qg3 Bc8 Bf4 Bf6 Bg5 Be7+ Kd5 Rgf4 Qb1 Qf7 Bh3 Bc5 Bg2 Qf6 Qa1 Nf8 Qa2 Bf5 Bh3 Ne6 Bg2 Rb7 Kc6 Bh3 Red5 Rg4 Re5 Rb8 Kd7 Rb7+ Kc8 Qf5 Qb4 Rf7 Qd4 Rc7+
1bQ2Q2/6n1/NkrR1rb1/nn3PQ1/1qn3Bb/1rN1b3/1B1p1RK1/R4r2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 c4 e5 f4 h5 Kf2 d5 g4 Kd7 g5 Kc7 g6 h3 c5 e3+ Kg3 e2 g7 e1B+ Kf3 d3 c6 d2 Rh2 e4+ Ke2 b3 Na3 d4 Ra2 b2 Rf2 b1N Nc2 d3+ Ke3 h2 Bh3 h1R Nb4 h4 Ra5 Rh6 Nc2 Bc5+ Nd4 Ra6 Rh2 Qe7 Ne2 Nf6 g8Q Kb6 c7 Ne8 Bd7 h3 Ra1 Bh4 Ra3 Nc6 Qf1 Rf6 Qf7 Nc3 Ra5 Ng7 Qf2 Rf1 Ra1 Na5 Bg4 Bf5 c8Q Bg6 f5 d1N+ Kf4 d2 Qff8 e3 Kf3 Bg3 Bb2 Bb8 Nc2 Rc6 Rg2 h2 Nb4 h1R Rh2 Qh4 Kg2 Bd4 Qf4 Rf3 Qh8 Rhf1 Qhf8 Qe7 Qg5 Rh3 Nc1 e2 Nca2 e1B Bf3 Na4 Nc3 Be3 Bh5 Bh4 Bg4 Ra7 Na6 Qb4 Qe6 Rf7 Qee8 Kb7 b6 Rff6 Qe6 Nf2 Qee8 Nd3 Qe6 Ne5 Qec8+ Ka8 b7+ Ka7 Rd1 Nec4 Ra1 Bbf4 b8R Be5 Nb1 Nc3 Rb6 Nb5 Nc3 Beg3 Qh6 Bb8 Qg5 Rc5 Re6 Rc6 Rd6 Kb6 Rh1 Rb1 Rf1 Rh1 Rf2 Rhf1 Ba3 Rb3 Bc1 Rh1 Bb2 Rf1
Nn1n4/4R2K/2b1n3/rR1n1Q2/1B1QQ1qn/n1P2r2/pk4nq/2NBB1q1 w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 a4 b5 g3 bxa4 Be3 c5 Bd2 cxd4 Bc1 Bh6 Rh2 g4 Rh1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf4 a5 e4 h5 b4 f5 g6 h4 c3 d3 g7 g2 e5 a3 b5 d2 b6 d4 b7 Kd5 e6 a4 e7 h3 Kg5 f4 Kg6 a2 e8Q a3 Ne2 Kc4 Qe1 Kb3 Qf2 d1Q Qh4 g1N Qh7 h2 Qh6 f3 Qh3 g3 Qc6 f2 Qh5 g2 Bb2 d3 Qh4 d2 Qc7 Bd7 Qd4 Rh3 Qe4 Bc6 Qee5 Qd7 Nf4 Ne2 Bc1 g1N Qca5 Rf3 Ne6 Nf4+ Kh7 Nh6 Qd4 Nf7 Nc7 Ne6 Be2 f1N g8Q Ne3 Qe8 Ng2 Qf5 Ra5 Na8 Nfd8+ Qe7 Qc8 Qeh4 Qf1 Qhe4 d1N Bd2 Nde3 Be1 Kb2 Nd2 Nd5 Bd1 Qe2 Rc1 a1N Nb3 Nc2 Ra1 a2 Nc1 Nh3 Rg1 Nh4 Rg7 h1Q Re7 Qg1 Rb1+ Ka3 Qf7 Nhf4 Qff5 Qeh2 Rb6 Nfg2 Rb5 Na6 b8B Qd7 Rc5 Kb2 Bd6 Na3 Rb5+ Ndb4 Bb3 Nd5 Bb4 Nb8 Bd1 Ng7 Qff6 Qg4 Qff5 Nge6
Q2bb3/rR3BK1/4p2N/2B5/rqr1kqQr/3rn1R1/2N1r1Pr/3QRq2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 e4 a5 f3 axb4 e5 Nc6 e6 Ne5 Bd2 Ng4 Be3 fxe6 Bc1 e5 Nc3 e4 Nb1 Ne5 f4 gxf4 Rh3 Nf7 Rh1 Ng5 hxg5 Qa5 Nh3 Qb6 Ng1 Qd8 Kf2 Kf7 a4 Ke6 c4 Ke5 a5 b5 g6 d5 a6 h5 g7 e6 c5 e3+ Kf3 b3 c6 b2 a7 d3 c7 d4 Ra5 e2 Bd2 e1R Na3 b1R Bc1 d2 Qa4 d1R Be2 d3 Ra6 b4 Bd2 b3 Rc6 h4 Kg4 h3 Nb5 f3 Ba5 b2 Bf1 d2 Bb6 h2 Nh3 f2 Qa6 Ra1 Qa4 b1Q Rc3 Qd6 Kg5 Qbb4 Kg6 Be7 Rg3 Bd8 Na3 Ke4 Bc5 Bd7 c8R Rdc1 Be2 d1R Rb8 f1Q Rb7 Nh6 g8Q Rd3 Qd1 Rc4 Bh5 Nf5 Nc2 Ne3 Kg7 Be8 Bf7 Ra4 Rg1 h1R Nf2+ Kf4 Ng4 Ke4 Nh6 Rh2 Rh1 Re2 Rg1 Qdf4 Rh1 Rc8 a8Q Rc7 Rg1 Q1f3 Re1 Qf1 Kf8 Rh7 Qg4 Rh8+ Kg7 Rcd7 Ng8 R8h4 Nh6 Ke5 Rb8 Rda7 Rb7 Ke4
kb1Qb3/1R1B2rq/b4rqq/4n2r/1BqN2P1/1Kp1Q3/NN1R3q/b6B w - - 0 1 legal: proof: f4 a5 c4 d5 b4 axb4 g3 dxc4 Kf2 e5 Ke1 exf4 h3 fxg3 Qb3 g5 Qc2 g2 Qd1 g4 Qa4+ Nd7 Qd1 g3 Nc3 Ndf6 Nb1 Ng4 hxg4 Ke7 Nh3 Kd7 Ng1 Ke8 d4 Kd7 Kd2 Kc6 Kc2 f5 e4 h5 a4 b5 a5 Kb7 d5 c5 e5 c3 d6 b3+ Kd3 b4 Kc4 h4 d7 f4 e6 c2 e7 h3 e8B b2 Nc3 b1B Bh5 b3 Na4 b2 Nb6 f3 Na4 f2 Kc3 h2 Qd4 c4 Ne2 g1B Bh3 f1R Qd1 g2 Bf4 c1Q+ Qc2 Ba7 Ra3 g1Q Nd4 Bg7 Bd6 Qh4 d8Q Ne7 Ra2 Bb8 Be8 Ra7 a6+ Ka8 Bd7 Ng6 Bb4 Rf6 Bg2+ Rb7 a7 Ne5 Bf3 Qh7 Bfc6 Qch6 Qc1 Bg6 Qe3 b1Q Rd2 Be8 Nb2 Qbg6 Be4 Qg2 Rb1 h1Q Bf3 Q1h5 Be4 Qgh2 Bh1 Nd3 Kc2 Qd5 Kc3 Rc7 Kc2 Ba6 Kc3 Kb7 a8N Ne5 Nb6 Qde4 Nd5 Ka8 Rg1 Ra7 Rb1 Qf3 Nc2 Rg8 Ba4 Nc6 Bc5 Qfe2 Ndb4 Qe4 N2d3 Rg6+ Qed4 Rf7 Qe5 Rf5 Na2 Rh5 Rb7 Rd6 Ba3 Qeg6 Bb4 Bf6 Kb2 Rg7 Ka3 Qf1 Qe3 Ba1 Nb2 c3 Kb3 Rf6 Nd4 Ne5 Bd7 Qc4+
qR2B1N1/3K2bk/2B2b2/3Q3q/q2r1p1n/2nP1b1q/2RN1NQB/2qb1n2 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 h4 exf4 g3 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Na3 g4 Nb1 Rg5 hxg5 fxg3 a4 f5 e4 Kf7 Ke2 Kg6 Ke3 h5 Kf4 c5 Ke5 g2 a5 g3 a6 h4 d3 b3 a7 b4 a8N b2 Be3 h3 Qa4 f4 Bc1 c3 Qb3 c2 Qd5 c4 Qc6+ Kh7 Qe8 c3 Ra5 h2 Qe6 b3 Qd5 Nh6 Ra3 Ng4+ Kd4 Bb7 e5 Bg7 Kc5 Ne3 e6 Nd7+ Kd6 Ne5+ Kc5 Ng6 e7 Nh4 Qc4 Bf3 Nb6 Qa8 Kd6 Rd8+ Nd7 Qa4 Nh3 g1B e8B g2 Bd2 c1Q Nf2 c2 Ra2 Qd1 Qd5 c1Q Be1 Qcc6+ Ke7 Qca8 Nd2 b1N Rc2 b2 Be2 Nf1 g6+ Kh8 Nf6 Nc3 Ng8 b1B Bc6 Ba2 Be8 Bb3 Ke6 Bf6 g7+ Kh7 Bc6 Rc8 Be8 Rc4 Bc6 Rd4 Kd7 Be4 Bg4 Bf3 Bh5 Qe2 Be8 Qe5 Nd1 Qh5 Bg3 Be3 Nf2 g1Q Nc4 Bc1 Nd2 Qg2 Rg1 h1Q Bh2 Qg3 Rg2 Ba3 Rb2 Bbd1 Rb8 Bf8 Ne7 Kh6 g8Q Qh3+ Qg4 B8g7 Ng8+ Kh7 Rg1 Nf5 Qg2 N1g3 Re1 Nf1 Re2 Qg1 Nb3 Qh1 Rc2 Qg1 Nh1 Qe3 Nf2 Qc1 Nd2 Nh4+
3qqQRn/b7/qnb1B2n/Rr2PN1B/NK2bn2/6p1/3Qqk2/nR3B2 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 b5 Qd2 f5 Qd1 h6 Bg5 hxg5 Nb1 f4 Qd3 Ra6 Qd2 Rf6 Qd1 Rf5 gxf5 Bb7 Qc1 Ba6 Qd1 Bc8 Kd2 Kf7 e4 Kf6 c4 Ke5 h4 d5 a4 b3 h5 d3 Kc3 d4+ Kb2 d2 h6 d3 Kc3 b4+ Kb2 Kd4 e5 Ke3 a5 f2 f6 f3 a6 g4 h7 g5 f7 g3 a7 g4 a8B g2 c5 g3 c6 Ne7 c7 Bb7 c8B Ng6 Ra6 Bc5 f8R Ba7 Nc3 Qe8 Be6 Bc6 Rf5 Nd7 Bg8 Nb6 Qa1 d1N+ Kb1 b2 Ka2 b1B+ Kb3 d2 Rh4 Bbe4 Nge2 g1N Nb1 Nh3 Rfh5 Nhf4 Bg2 f1Q Rh2 f2 Nd4 Qe2 Rh1 f1Q Nf5+ Kf2 Rg5 Ne3 Qb2 Ng4 Ra5 Nh6 Nc3 d1Q+ Qc2 Qd6 Na4 Qdd8 Be6 Rg8 Bf3 Nh8 Qd2 Rg7 Rg1 Rb7 Rg8 Qa1 Bh5 Qf1 Ka2 b3+ Ka3 b2 Kb4 b1N Rh1 Rb8 Bb7 Na3 Ba6 Qa1 Rb1 Nc2+ Kb3 N8f7 h8Q Rb7 Qg7 Nh8 Qf8 Qa2+ Kc3 Na1 Kb4 Qc2 Bac4 Qcd3 Bb3 Qa6 Bbd5 Bc2 Bg2 B2e4 Bh3 Rd7 Bg2 Rd5 Bf1 Rb5+
k4q2/3R2r1/1KN5/n3pnNb/5n1B/rqn1RPr1/2R2QN1/2q1BQqq w - - 0 1 legal: proof: g4 f5 b4 a5 d4 axb4 g5 c5 e3 cxd4 g6 e6 Kd2 Bd6 Ke1 Bf4 exf4 hxg6 Bb5 g5 Bd3 g4 Be4 fxe4 Ke2 g5 h4 d5 c4 Kd7 a4 Kc7 c5 b5 c6 e3 Kd3 e5 f3 b3 h5 g3 h6 g4 f5 b2 h7 g2 f6 b4 a5 b3 f7 g3 f8B e2 a6 e1N+ Ke2 d3+ Ke3 d2 a7 d4+ Ke4 d3 Rh2 Ne7 Nc3 b1N Nge2 g1R Ra3 g2 Nf4 Nf5 Bb4 Qf8 Kd5 b2 Ne4 Rg8 h8Q Rg7 Qh4 Nc3+ Kc4 b1Q Qf2 Bd7 Ng5 Be8 Qde2 d1Q Qef1 Kc8 c7 Kb7 c8N d2 Ne7 Bh5 Kc5 Qdb3 Ba5 d1Q Bd2 Qff7 Bd8 Qbc1 Nc6 Qf8+ Be7 Nc2 Be1 Ncd4 Ra4 Nde2 Re4 Rh1 Re3 g1Q Ng2 Nf4 Rh4 Rh3 Rg4 Nfe2 Rd4 Nf4 Rd2 Qh1 Rc2 Rg3 Nb4 Kc8 Kb6 Nc6 Bf6 Na5 Be7 Qbf7 Nc6 Qb3+ Ka6 Rb8 a8R Qd4 Ra7 Ra8 Nb4 Qdd1 Kb6 Kb8 Rd7 Ra7 Nh3 Ka8 Bh4 Nb7 Ng5 Ra3 Qb5 Na5 Nc6 Qc4 Qb1 Qcf1 Qb5 Qfg1 Qbe2 Qd5 Qef1 Qb3+
q3Q1R1/1B5b/2q5/3Pq3/b2qrQNp/1Q1q3n/bBN1R1n1/1NnkbK2 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 h4 exf4 g3 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Na3 g4 Nb1 Rg5 hxg5 fxg3 e4 Kd7 a4 Kd6 d4 h5 d5 Kc5 a5 f5 e5 g2 e6 g3 a6 f4 e7 h4 e8N f3 a7 c3 a8Q c2 g6 b3 g7 Kb4 Ra6 c5 Be3 c1Q Bg5 c4 Qc6 c3 Qg6 b2 Nd2 b1B Re6 f2+ Ke2 c2 Qf5 Kc3 Nd6 b4 Be7 b3 Qh5 b2 Nh3 g1Q Rf6 g2 Qh7 Ba2 Rg6 b1B Nf5 Na6 Rf6 Qb2 Nh6 c1Q Rc6+ Nc5 Re6 Nb3 Rb6 Nf6 g8Q Ng4 Rb8 Bd7 Bc5 Ba4 Qhf7 Ne3 Nf4 Bh7 Ba3 Bb4 Qge8 Qcc2 Ne6 Nc1+ Kf3 Qa5 Rh2 Qa8 Qf4 Rg8 Bc4 Rg4 Nd4 Qg6 Ba6 Qgc6 Bb7 Qa1 Qd6 Re4 Ng4 Kd3 Nc2 Qe5 Qf6 Kc3 Qf4 f1Q+ Nf2 Qfc4 Ng4 Qd3 Nb1+ Kb3 Bb2 Be1 Qe6 Qdd4 Rg8 Qf1+ Nf2 Qfd3 Ng4 Bc3 Kf2 g1N Qe8 Nh3+ Kf3 Be1 Re2 Nf5+ Kg2 Ne3+ Kh2 Ng2 Kh1 Nf2+ Kg1 Nh3+ Kf1 Nf2 Nb4+ Qdc2 Qdd2 Nh3 Qde3+ Q2c3 Nd3 Qd2 Qeg3 Kc2 Nb4+ Kd1 Nc2 Q2e3 Qgf3 Qed2 Qb3 Q2d3
R3B1Qq/q5Q1/pnb1N1NB/q3q2n/2k5/4r1bB/1nb1qP2/R1b2NK1 w - - 0 1 legal: proof: b4 c5 h4 g5 d4 gxh4 e4 cxd4 a4 f5 a5 fxe4 b5 a6 b6 Ra7 bxa7 b6 Bb2 bxa5 Bc1 a4 a8N Kf7 c4 Ke6 g4 h5 c5 Kd5 c6 e5 g5 e3 c7 h3 g6 e4 g7 h4 Bb2 h2 Qd2 h3 Ba3 d3 Nf3 e2 Nh4 Bd6 Qa5+ Kc4 Bb2 a3 Ra2 Bb7 c8B Bc6 Ra1 a2 Qd2 Bg3 Be5 d5 Rg1 h1Q Bc3 d4 Qe3 h2 Bb4 Nf6 Ng6 Re8 Qh6 Nh5 Nh4 Qa5 Qh7 Nd7 Bb7 Nb6 Kd2 e1B+ Kd1 e3 Bc5 Bd2 Qg6 Bc1 Bh3 d2 Ke2 d1B+ Kf1 d3 Bf8 d2 Nc7 Bc2 Ne6 d1N g8Q Nb2 Q6g7 Qe4 Ba8 h1Q Ng6 Qd4 Bb7 Qae5 Bc8 Qhd5 Bd7 Qa5 Rh1 e2+ Kg1 Re7 Be8 Qd7 Rh2 Qa7 Nd2+ Kd3 Nh8 e1Q+ Nf1 Q1e2 Ng6 Kc4 Rg2 Rf7 Rh2 Rf3 Rg2 Bh4 Rg5 Re3 Rf5 Bg3 Rf7 Qab8 Ra7 Qbc7 Ra8 Qa7 Qc7 Qh8 Bh6 Qae5 Rb1 a1Q Qcg7 Qa2 Ra1 Qaa5
3K1b2/RRQ1n1b1/p5kB/b1n4N/3Br3/6q1/bqq1P2q/1NbQ1BRn w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 h4 g5 Qd3 a6 Qd1 Ra7 Qd2 Rc7 Qd1 Rc5 Na3 g4 Nb1 Rg5 hxg5 fxg3 Kd2 f5 Kd3 Kf7 Kc4 d5+ Kd3 h5 b4 f4 c4 a3 c5 f3 c6 h4 c7 f2 b5 a2 b6 h3 b7 h2 Qe1 g2 Nd2 g3 Ngf3 g1B Nh4 Qd6 Qd1 Be6 Qe1 Nd7 Ng6 Rh4 c8Q Re4 Rb1 a1B Bh3 f1Q b8B g2 Qb7 Qf3+ Kc2 d3+ Kb3 d4+ Ka4 Ba2 Ka5 Be3 Rg1 h1N Ba7 Qh2 Nf4 Qfg3 g6+ Kf6 g7 Kf7 Nf1 d2 Nh5 d1Q Nd2 d3 Qf1+ Bf6 Bd4 Kg6 Rb2 Qb3 Nb1 d2 Qb8 Ne7 g8R+ B6g7 Qc8 d1Q Qb7 Qdc2 Qd1 Bf2 Bh6 Nc5 Qb8 Qbc3+ Kb6 Be3 Qe5 Qa3 Kc7 Bc1 Rb7 Qab2 Qf4 Nd5+ Kc8 Bd6 Ra7 Bc7 Rf8 Ba5 Rff7 Bf8 Rfb7 Bg7 Qc7 Ne7+ Kd8 Bf8 Rf1 Bg7 Re1 Bf8 Bdg7 g1B Bh8 Bd4 Rg1 Bde3 Bf1 Bf4 Bc3 Be5 Bd4 Beg7
4N3/1Q2nbbk/2N2nqr/2b2bn1/1Nb1QB1b/4B1P1/R3p3/qn2QR1K w - - 0 1 legal: proof: b4 a5 e4 axb4 f4 b5 c4 d5 g3 dxc4 f5 g6 f6 Ra3 Bh3 Rf3 Bf5 gxf5 e5 Rf4 e6 fxe6 h3 Rg4 hxg4 e5 Kf2 e4 Kf1 Kd7 Ke1 Ke8 Kf1 Kf7 Kg2 Kg6 d4 e5 a4 c5 a5 h5 d5 e3 g5 h4 f7 e4 a6 c3 d6 c4 d7 b3 a7 b2 a8Q e2 Qc6+ Qf6 d8B e1N+ Kh2 c2 Bb6 e3 Nf3 b4 Bd8 f4 Bc7 c3 Qdd6 h3 Qcd5 b3 Qd4 Kh7 Qd7 Ne7 Na3 b1Q Rf1 b2 Kh1 h2 Qb5 Bf5 Bd8 Bg7 f8Q Qg6 Qd6 Nd7 Qbd5 Nf6 Ng1 f3 Q6e5 f2 Qde4 Nf3 Ra2 Qa1 Bc7 b1N Bd2 c1B Qf7 c2 Ne2 Bb2 Nd4 c1B Nac2 Ba3 Nc6 Bc5 N2b4 Bb2 Qee6 Bbd4 Bf4 Bc3 Rd1 f1B Q6e5 Ba6 Rf1 Bc4 Qfd5 Bb2 Qd7 Ba3 Qb7 e2 Bde3 Bb2 Qd6 Be5 Qd1 Bc7 Qe1 Bd8 Qe5 Nd4 Qe4 Ne6 Kg2 h1B+ Kh2 Bf3 Kg1 Bh5 Kh1 Qf7 g6+ Kg8 Qc7 Ng5 Qd7 Rh6 Qb7 Bh8 g7 Kh7 g8N Bg7 Qc2 Qe6 Qe4 Bf7+ Kg1 Nh5 Kh1 Qg6 Nf6+ Kh8 Ne8 Nf6+ Kg1 Kh7 Qa6 Ng4 Qh1 Ng8 Nd3 Ne4 Ndb4 Bh4 Qb7 Ng5 Qe4 Ne7 Kh1 Nf6
3N1Qbn/kP3n2/1RK3n1/2Q1r1R1/n4nq1/2r1nr2/r1R1p1B1/qNN1B3 w - - 0 1 legal: proof: g4 c5 e4 b5 h4 f5 a4 bxa4 d4 cxd4 g5 fxe4 f4 g6 f5 gxf5 g6 f4 Bg2 Bh6 Bf1 Bg5 hxg5 Bb7 Rh5 Ba6 Rh1 Bc8 Kf2 d5 c4 Kd7 b4 Kc7 c5 Kb7 b5 e5 g7 a5 b6 h5 g6 a3 Nd2 a2 Nc4 a4 Nh3 a3 Bd2 f3 Nf4 h4 Bg2 h3 Qb3 h2 Qe3 d3 Rad1 a1Q Rhg1 h1N+ Kf1 f2 Qf3 e3 Nh5 e4 Nb2 a2 Rb1 d4 Re1 Ra5 Qf5 Qd7 Nc4 Nh6 g8Q Nf7 g7 Nc6 Nf6 Ncd8 Nd5 Rh3 Qh5 Nh8 Qf3 Ndf7 Nf4 Qg4 Ne5 Be6 c6+ Ka6 b7 Ka7 Nc4 Re5 Bc3 d2 Ke2 d1N c7 f1R c8R Nb2 Na3 Na4 Qf8 Nf2 g8N Nd3 Rb1 Rc1 Ba5 Rc3 Rb6 Rg3 Nb1 Bc4 Kd1 e2+ Kd2 e1N Ne2 Nf4 Ne7 d3 Ke3 d2+ Kd4 d1N Qf2 e3 Nc1 Rf3 Qc2 e2 Qf5 Re6 Qc5 Ned3 Rcc6 Nde5 Ke4 Rcd3 Be1 Rc3 Rc7 Bd3+ Kd4 Bh7 Rc8 Bg8 Rcc6 Nh5+ Kd5 Neg6 Rc7 Re5+ Kc6 Ne3 Rd7 Nd5 Bh1 Qf4 Kb5 Qd4 Rg5 Ne3 Bg2 Qg4 Rd2 Nhf4 Rc2 Qb2+ Kc6 a1R Nf5 Raa3 Nd4 Ra1 Ne6 Ra2 Nd8 Qa1
Bbqr1r1b/r3rB1K/3r1Q2/1k1bn1N1/7P/1rB5/rR2p2R/RQ1r2N1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 e5 axb4 e6 fxe6 Bb2 e5 Bc1 e4 g3 gxh4 Bc4 h5 Qd3 h3 Qd1 h4 Bf1 h2 Bg2 h3 Bf4 Nc6 Bf1 Ne5 Be3 Ng6 Bc1 Nh4 gxh4 Qc7 Bd2 Qa5 Bc1 Qd8 Ke2 b5 a4 d5 f4 Kd7 c4 Kc6 a5 e5 c5 d3+ Ke3 d2 f5 b3 a6 d4+ Kf2 e3+ Kf3 e2 Ke4 e1B a7 b4 f6 b2 f7 b3 Bc4 d3 Ne2 Bg3 Rf1 h1R Re1 h2 Ra3 Be6 Rf1 Nh6 Ra5 Qc8 Rf6 Ng4 Rf1 Bg7 Rf2 Rf8 Ra4 Re1 Ra3 h1R Ra1 Bh8 Nc3 b1R Rg2 Rb2 Rh2 Ra2 Bb2 Rd8 f8Q Rhf1 Qc2 d1R Qb1 d2 Qf2 Bg8 Qf6+ Rd6 Bf7 Rf2 Na4 Kb5 Bc3 b2 c6 Rf5 c7 Rff1 Qc1 b1R Nc5 Rb3 Ne6 Bf4 Kf5 e4 Kg6 e3 Ng5 Ne5+ Kh6 Rd8 Qb1 Rf2 Bg6 Bd5 Kh7 Bg3 Ng1 Rf5 Qe7 Rff8 Bf7 Rd6 Qf6 Rdd8 Qbg6 Bf4 Rb1 Rd6 Rb2 Rda1 Qgf5 d1R Qb1 Rb8 a8B Ra7 Rbc2 R1a2 Rc1 e2 Rc2 Rbb7 Rb2 Rd3 Qd8 Red1 Qf6 Qh3 c8R Re7 Rc6 Qc8 Ra6 Rg3 Ne4 Rgg8 Ng5 Rfd8 Ra3 Rgf8 Rc2 Rab2 Ra1 Rba2 Rb2 R6d7 Be1 Nf3 Bd2 Bb8 Be1 Rd6 Bc3 Ne5
nK2bn2/7R/2R1BQ2/R3r1r1/3QN1rn/nnnPbp1k/B3Q2r/5N1r w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Ba3 h6 Bb2 Qd5 Ng1 f3 Bf6 f4 Bg5 Qf5 gxf5 hxg5 Kf2 Ke7 e4 Kf6 h4 b5 a4 c5 h5 g4 a5 Kg5 d3 b3 f6 g3+ Ke1 Kg4 Kd2 g5 Kc3 b2 f7 b4+ Kd2 c3+ Kc2 c4 h6 g2 e5 Bc5 f8R Nd7 e6 Nb6 a6 Ne7 a7 Bd7 h7 Re8 a8B Ng6 e7 Be3 Qc1 b3+ Kd1 c2+ Ke1 c3 Bc6 f2+ Ke2 Na8 Nf3 g1R Qd2 c1R Ra6 c2 Nc3 b1N Rf5 b2 Bd5 Na3 Rc6 b1N Ba2 Nf8 Ne4 Rd1 Bg2 f1N Ra5 Nh2 Qb4 Rc1 Nfd2 Nf3 Qd6 Nh4 Qf6 Rcf1 Rh3 Rh1 Qd4 Rfg1 Nf1 Rh2 Qf6 Rgh1 Qd4 Rg8 h8Q Rg6 Qhf6 c1N+ Kd1 Nb3 Ke2 Rc8 e8Q f3+ Ke1 Nc3 Qee6+ Nf5 Rh7 Be8 Qee7 Rb8 Qee6 Rb5 Bh3+ Kf4 Qee7 g4 Qee6 g3 Bg4 g2 Qee7 Bc1 Kf2 g1R+ Ke1 Rhg2 Qeb4 Nd5 Qd2+ Ne3 Qf2 Nd5 Qe2 Rg5 Kd1 Be3 Bh3 Nc4 Kc2 Na3+ Kb2 Rgh2 Bg4 Ndb6 Kc3 Re5 Kb4 Nd5+ Ka4 Nb1 Kb5 Na3+ Ka6 Nc3 Kb7 Rg3 Qg6 Nh4 Be6 R3g4 Kb8 Rgg1 Bg8 Kg4 Qf6 Kh3 Be6+ R1g4
QrNqB1r1/3Bn3/Q1rK4/b1r2Pnq/2B1R3/k2Nq1R1/2qp1nQn/8 w - - 0 1 legal: proof: d4 a5 g4 c5 f4 cxd4 e4 f5 b4 fxe4 f5 axb4 Bf4 h6 Bg5 hxg5 Bd3 b6 Bf1 Ba6 f6 Bc4 Bg2 Be6 Bf1 Bf5 gxf5 Rh7 Nc3 Rh3 Nb1 Rh8 Kf2 e5 Kg3 d5 c4 Kd7 a4 Kc6 h4 Kc5 a5 e3 a6 b3 a7 Kb4 h5 e2 h6 e1Q+ Kf3 b2 f7 b5 c5 d3 h7 d2 c6 d4 c7 e4+ Kg4 e3 c8B d3 Ba6 e2 Qc1 d1N Bh3 d2 Bg2 Nf6+ Kf3 g4+ Kf4 g5+ Ke5 g3 Nc3 b1R Ke6 g4 Bc8 Rg8 h8Q Nh7 Ra2 Ng5+ Ke5 Nf2 Ra3 Qd1 Qh4 e1Q+ Be4 g2 Rh3 g3 Be6 Qh5 Na4 Qe3 Qf1 Rc1 Bd7 Rc7 Nf3 g1N Qg4 g2 Nb6 Nc6+ Kd5 Bg7 f8Q+ Ne7+ Kd6 Bc3 Ne5 Rb8 a8B N1f3 Bad5 g1R Rg3 Nh2 Nc8 Rc5 Qd3 Rc1 Bc4 Rc7 Rb3+ Ka4 Qf3 Ba5 Bc6 Rc3 Rb1 Ka3 Re1 b4 Qg2 b3 Qe2 b2 Nd3 b1Q Qef1 Qa7 Re4 Qe3 B6b5 Rc5 Ba4 Qc2 Bc6 Qb6 Be8 Qd8+ Bcd7 Rg7 Qg8 Rc7 Qd5 Rg8 Qa8 Rc5 Qb1 Rc7 Qb5 Rc5 Qba6 Rc7 Bd5 R3c5 Bc4 R7c6+
N1rQK1kr/2N1P3/bn5q/Rb1r1bpQ/1n2R3/R1p4n/6bN/B1B3b1 w - - 0 1 legal: proof: c4 b5 g4 e5 a4 d5 h4 dxc4 f4 exf4 axb5 Bb4 g5 Be7 h5 Bf8 Bg2 g6 Be4 gxh5 g6 h4 g7 Qd7 Bc2 Qd8 Bg6 fxg6 Kf2 Kf7 Kf3 a5 Ke4 h5 Ke5 c5 d4 f3 b4 h3 e4 h2 b6 h4 b5 c3 b7 h3 b6 g5 d5 c4 d6 c2 d7 f2 Qd6 f1B Be3 c1R Na3 a4 Nf3 Ne7 g8R Ra5+ Nb5 a3 Qd1 Nd5 Nc7 a2 Na8 Bc5 Re8 Nf4 Re6 Qe7 d8Q Qf8 Rg1 h1B Nh2 Rc2 Bc1 Bhg2 Qh5+ Kg8 Re7 Bf2+ Kd6 Bf5 e5 Nd7 b8N Rd5+ Kc7 Rc3 b7 Nb6 e6 Bc5 Rh1 Bg1 Na6 B1d3 b8B Rc2 Rb1 a1N Rb5 Rc3 Ra5 Nc2 Kc6 Be2 Be5 Nb4+ Kc7 Rc2 Ba1 Bgf1 Qd6 Qh6 Kd8 Bg2 Ke8 Bgf1 Ng4 h2 Qd8 Nh3 Ra3 c3 Ra7 Ra2 N6c7 Ba6 e7 Rad2 Ra5 Rc5 Ra3 Rdd5 Ra5 Rc6 Ra3 Bfb5 Ra5 Bf2 Re1 h1B Re4 Bg2 Nh2 Bg1 Ra3 Bac8 R7a4 Bca6 Ra5 Nd7 Ne6 Rc8 Nec7 Nb6+
k1r5/2Rp1qb1/B1K4b/3B1bN1/n1Q2rN1/2r1rpn1/Q1P4R/2r1RN1n w - - 0 1 illegal: Other
1KB3n1/rqNQ2q1/2QB1b2/2bB1Np1/1kP1p1r1/3Rb1q1/1n2RQ2/1q5q w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 e5 f4 c5 d4 cxd4 f5 h5 Qd3 hxg4 Qe2 b6 Qd1 Bb7 Ba6 Bd5 Bf1 Be6 fxe6 f5 Qd3 fxe4 Qd2 Nf6 Qd1 Ng8 Ke2 Ke7 a4 Kd6 h4 Kc5 c4 g5 h5 d5 h6 d3+ Ke3 d4+ Kd2 b3 h7 b5 a5 b4 a6 e3+ Ke1 b2 a7 b3 e7 d2+ Ke2 g3 Kd3 e2 Ke4 e1B e8B g2 Ra4 d3 Nc3 b1Q Qf3 d1Q Rh2 b2 Qf2+ Qd4+ Kf5 d2+ Ke6 e4 Ra3 Qd3 Bc6 b1Q Nf3 g1B Bd5 Nc6 Kd7 Ne5+ Kc7 Kb4 Bh3 Qa4 Nh4 d1Q Bc8 Qg3 Nb5 Nd3+ Bf4 Qa6 Nf5 Bc5 Bd6 Nb2 Rd3 Bc3 Rg2 Qdf3 Rh2 Qh1 Rg2 Rb8 a8Q Qde5 Qc6 Qg7+ Qd7 Ra8 Rh2 Ra7+ Kb8 Bf6 Nc7 Nh6 Qc6 Rf8 h8Q Ng8 Qh3 Rf7 Qff1 Be3 Re2 Be7 Nh4 Rf4 Qf2 Bf6 Qhd7 Rg4 Nf5 Qb7+
2Q1N3/N5br/1n3pr1/P3nq2/Qb1K2R1/2Rp3b/N2BBb2/k2rbRq1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 Qb3 hxg4 Qa4 Ra5 Qd1 Ra8 e4 Ke7 Ke2 Ke6 Kd3 c5 h4 g5 a4 d5 h5 b5 h6 c2 a5 d4 h7 c4+ Ke2 d3+ Ke3 g3 Qf3 g4 Bb2 c1B+ Nd2 g2 Rh4 b4 Nh3 g1B Ra3 c3 Qd1 g3 Rh5 g2 Rh6+ f6 Qe2 b3 Qf3 c2 Ra4 Qd7 Qf4 Bh2 Bc3 g1Q Be2 Bca3 Nb1 c1B+ Bd2 b2 Nc3 b1R Nb5 Nc6 Na7 Bg7 Rh5 Bg3 Ng5+ Ke7 e6 Bb4 Ra1 Ne5 Rh4 Kd6 e7 Kc5 e8R Kc4 Rg4 Kb3 Re6 Kb2 Rc6 Qe6 Kd4 Ne7 Rc3 Rg8 h8Q Qf5 Qh3 Nd5 Qh8 Nb6 Qh3 Nf7 e5 Bd7 e6 Ne5 e7 Rac8 e8N Rc7 Be1 Bd2 Ne4 Rd1 Qh8 Bh6 Rac1 Rg6 Qf8 Rb7 Qc5 Be6 Qc8 Rh7 Ra1 Bc1 Bd2 Bg7 Rca3 Bd7 Nc3 Be6 Na2 Bd7 Be3 Bcd2 Rc3 Be1 Bd2 Bc6 Rac1 Bg2 Qe4 Bh3 Qec6 Bh4 Rg2 Bg3 Qa4 Qh1 Rg1 Qh2 Rf1 Qg1 R1c2+ Ka1 Rc4 Bh8 R2c3 Bg7 Ke3 Qe6 Rg4 Qf5 Kd4 Bgxf2+
K4RB1/b1r1PB2/1k3pqR/1n3b2/b1Q5/q2p3N/4nNrn/1QRb1b1Q w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Bd2 exf4 Bb4 axb4 a5 b6 axb6 Ra4 Nc3 Ra6 Nb1 Ra8 Kd2 h5 Kd3 d5 g4 Kd7 e4 f3 c4 f6 g5 h3 b7 Kc7 e5 h4 c5 b3 e6 h2 g6 b2 c6 f2 g7 h3 Qa4 Ra7 Qa2 Bc5 e7 Qd6 Qa3 Na6 b8R Nh6 g8B Bf5+ Ke2 d3+ Kf3 d4 Rf8 d2 Bfc4 f1B Bcf7 Kb6 c7 Ng4 c8Q Nc7 Nc3 b1Q Nd1 d3 Nf2 d1B+ Ne2 Rh7 Qc1 Rg7 Qh6 Qa2 Rc1 Qa3 Qh7 Ba4 Nf4 Bd4 Qe6 Qc6+ Qd5 Qe8 Qc4 Be3 Bd5 Qg6 Bdf7 Ne8 Qh5 Rc7 Qh4 Nd6 Qh8 Ka5 b6 Nb5 b7 Ba7 b8Q Ka6 Rg1 h1B+ Rg2 h2 N4h3 Ka5 Qh4 Nd6 Qb1 Nb5 Kf4 Bd1 Rg1 Bhf3 Rh1 Ba4 Qh7 Kb6 Qh6 Bfd1 Qh5 Bc8 Qh6 Qg5+ Ke4 Bf5+ Kd5 Qh5 Rg1 h1N Qh8 Nh6 Rg6 Ng4 Rh6 Nh2 Qh7 Rg2 Qh8 Qg6 Qh7 Ka6 Qh8 Rd7+ Kc6 Ng3 Qh7 Ne2 Qh8 Ka5 Qh7 Rd5 Kb7 Rd7+ Ka8 Kb6 Qg7 Qh5 Qh8 Rc7 Qh7 Bd7 Qhe4 Qg6 Qf3 Bf5 Qfd5 Rg4 Qh1 Rg2
3r2qQ/2R1Pq1b/2r1pr1b/RB2kN2/1RB1n1Qp/2nK1bNr/2B5/7r w - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Nh3 cxd4 Ng1 e5 e4 Ne7 Qg4 Ng8 Ke2 Ke7 Be3 Kf6 Qe6+ Kg7 Ke1 d3 Bd4 exd4 e5 d2+ Ke2 Bd6 Qf5 Ba3 e6 Bf8 Qe4 Kf6 e7 Kg7 Qe6 fxe6 Ra3 Kg6 Ra1 Kf7 f4 Kf6 g4 d1B+ Kd3 h5 b4 a5 c4 d5 b6 h3 c5 h4 f5 a4 b7 a3 g5+ Ke5 b5 h2 f6 a2 f7 Nd7 b8R Bh6 f8Q Nb6 g6 Ra3+ Nc3 Nf6 c6 Bb7 c7 Ne4 c8B Na4 g7 Bf3 g8B Bc6 Rc1 a1R b6 Bb7 Rc2 Rc1 Ne2 Rh7 Qe8 Rf7 Bd7 Rf6 Bb5 Ba6 Rg1 h1R Qg6 Bb7 Bf7 Qg8 Qg4 Bc6 b7 Be8 Bh5 Bg6 Ra8 Bh7 Ng3 Qf7 Rb2 Rc2 Rb3 Rc1 Nd1 Rc6 Ra5 Nac3 Rb4 Rb3 Kc2 Qg8 Ne3 d3+ Kc1 d4 Bg6 d2+ Kc2 d1R Nef5 Ra3 Bfc4 Rd3 Rc1 Rdd1 Kb2 d3 Rc2 d2 b8Q+ Rd6 Qd8 Rc1 Qf8 d1Q Qg7 Qf1 Qh8 Rcd1 Rc1 Ra6 Kc2 Rc6 Nd4 Re1 Ndf5 Qf2+ Kd3 Rh3 Ra7 Reh1 Rc7 Raa6 Ra1 Ra8 Ra5 Rd8+ Nd4 Nd6 Rb3 Bd1 Rb4 Qf4 Be4 Bf3 Kc2 Qf5 Bed3 Qh5 Ndf5 Qhf7 Be4 Bg7 Kd2 Bf8 Bc2 Bh6+ Kd3 Nde4+
1b3K2/p7/1r2k1r1/n1q3BN/3Q1BN1/bP1RpnN1/r1rR2r1/Q4qBq w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 f4 hxg4 e4 b5 f5 bxa4 Bc4 Ba6 Ba2 Bd3 Be6 fxe6 f6 e5 Nd2 Bc4 Nb1 Be6 Nd2 Bf5 exf5 e4 Nb1 Rh4 Ra2 Rh5 Ra1 Rh8 Kf2 Kf7 Kg3 d5 Kf4 e5+ Kg5 d3 h4 d2 c4 g3 h5 e3 h6 e4 c5 d4 b3 g2 c6 a3 c7 e2 c8Q e1Q h7 e3 Nf3 g1B Qd7+ Ne7 Bb2 d3 Rh6 a2 Rh2 Qc8 Nc3 Qf1 Qd4 Nec6 Ne2 Rg8 h8B Ne5 Ng3 Nbc6 Qc1 d1Q Rd2 g6 Nh2 Ba3 Kh6 g5 Ng4 Bh2 Qcc3 Qde1 Rad1 a1R Qc1 Ra2 Qa1 Nf3 Kh7 Ke8 f7+ Ke7 f8N Na5 Ne6 Rg6 Ng7 Qc5 N7h5 Rc8 f6+ Ke6 f7 Qh1 f8B Qef1 Be7 Rc7 Rf2 d2 Be5 Rc8 Bf4 Rc6 Re1 d1R Rd2 Rd6 Rd3 Rc1 Red1 Rc4 R1d2 Rc2 Nf2 g4 Beg5 Rh6+ Kg7 Rf6 Nge4 g3 Ng4 g2 Neg3 Rg6+ Kf8 g1R Bc3 Nb7 Ba5 Rg2 Bc7 Na5 Ne2 Bg1 Bh2 Bf2 Bg1 Bg3 Bb8 Be5 Neg3 Ra6+ Bd6 Bf4 Bh6 Rb6 Be7 Bb8 Bf4 Rd6 Beg5 Rb6+
Nn1rr3/Bk1n1R2/3q4/QPp3Rb/3B4/1bNQ2np/1q2q3/bNR1q1K1 w - - 0 1 legal: proof: f4 a5 b4 d5 h4 e5 c4 dxc4 e3 exf4 h5 a4 h6 gxh6 Bd3 h5 Bc2 b5 Bb3 axb3 a4 h4 axb5 Ra6 Nc3 Ra7 Nb1 Ra8 Kf1 Kd7 d4 h5 g4 c5 Qd3 Nc6 e4 Kc7 g5 f5 d5 c3 g6 f3 g7 f2 e5 c2 e6 b2 e7 f4 e8N+ Kb7 Nc7 Nf6 g8R Bg7 Be3 Bg4 Na3 b1Q+ Qd1 c1Q d6 Qcc2 Kg2 f1N+ Ne2 Ng3 d7 Qc3 Qd4 Qbe1 Rf1 f3+ Kg1 Qe7 Rc1 f2+ Kh2 Qf8 Qd6 Rb8 d8Q Nd7 Na8 Be6 Kg2 Bb3 Nb1 Qcd2 Kh2 Ba1 Nec3 Qb2 Kg2 Qf6 Kh2 Qd4 Rg5 Re8 Qa5 Qee2 Qg6 Rbd8 Qd3 Qd6 Bd4 Kc8 Rg1 f1Q+ Rg2 Qee1 b6 Qfe2 b7+ Kb8 Nb6 Kc7 b8B+ Kb7 Ba7 Ncb8 b5 h3 Rd5 h4 Rg5 Qc7 Ncd5 Qd6 Rf2 Q1d2 Kg1 h2+ Kg2 h1B+ Kg1 h3 Rf7 Bf3 Ndc3 Bh5 Na8 Qde1+
q1kB1RK1/2Nq4/2Q4p/2rnN2Q/1Brb4/2p5/q1QRPb2/1r1Bn1qb w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 Kf2 Kd7 Kf3 f5 g4 c5 d4 c3 g5 c4 b6 h6 g6 h3 d5 b3 g7 h2 b7 c2 d6 c3 Ra5 b2 Ra3 Ra4 Nh3 Nc6 b8Q Rc4 Nd2 b1Q Qa8 Nb4 Ra2 Nd3 Ba3 c1B Qc2 Ne7 g8Q Bb7+ Qd5 Bg7 Bg2 Bd4 Rf1 h1Q Bb4 Re8 Qaa4+ Kc8 Ng5 Qd7 Ne6 Ba8 Rb2 Qa2 Nc7 Rd8 Qdc6 Nd5 Qa5 Rc5 Nc4 Bce3 Qab5 Bf2 Ne5 Qg1 Bh3 Rc4 Bg4 Rg8 Bh5 Rg5 Be8 Rh5 Rd1 Bb7 Rd2 Qga1 Rb1 Qa8 Rg1 Q1a2 Rg8 Rg5 Rf8 Rh5 Kg2 Rg5+ Kh3 f3 Qa5 Ne1 Bf7+ Qe8 Qac5 f4 Q5b5 Rf5 Kg4 Qd8 Be8 Qd7 Qbc5 Bg3 Q5b5 f2 Qa5 f1Q Qac5 Rf7+ Kh5 f3 Kg6 f2 Q5b5 Rf5 Bf7+ Qe8 Kh7 Qg1 Kg8 f1R Bg6 Bgf2 d7+ Kb8 d8B Qd7 Qbc5 Rg5 Qe7 Rf5 Qg5 Kc8 Qh5 Nb6 Nf7 Rfc5 Ne5 Nd5 Qc1 Ng2 Bc2 Rd1 Qb2 Rb1 Bd1 Ne1+ Qcg6 Ne3 Qc2 Bh1 Qg2 Nd5 Qgg6 Bg2 Qc6 Bh1+
5n1N/Q1b2B2/3Q1Rp1/B1nr4/2Kb1R2/qNN2P1p/qbk2rn1/q4B1n w - - 0 1 legal: proof: d4 a5 e4 c5 b4 axb4 h4 cxd4 e5 b5 h5 Ra6 h6 Rxh6 Bd2 Bb7 Bc1 Rh2 f4 Bf3 e6 fxe6 gxf3 e5 Bg2 e4 Bh3 Qc7 Bf1 Qd8 a4 Kf7 c4 Ke6 f5+ Ke5 f6 d5 f7 h5 c5 e3 a5 g6 c6 d3 a6 Kd4 a7 e5 a8Q e4 c7 h4 c8B e2 Kd2 h3 Qaa4 Rf2 Qa6 b3 Na3 b4 Nb1 b2 Qb3 e1B+ Kd1 d2 Kc2 d1N+ Be2 e3 Qba4 Bd6 Kb3 Bc3 f8N Nd7 Q6b5 Qe7 Bd3 e2 Qa7+ Nc5+ Ka2 e1B Nd2 b3+ Ka3 b1Q Qba5 b2 Bd7 Nf6 Nh7 Ne3 Bc8 Ng2 Q5c7 Rd8 Ng5 Nh7 Nf7 Nf8 Nh8 Bh2 Qc6 Bc7 Bf1 Qc2 Be6 b1Q Qd6 Bb2+ Kb4 Qc3+ Kb5 Qa2 Ne2+ Kd3 Rg1 d4 Bg8 Kc2 Bf7 d3 Nb3 d2 Rb1 d1N Bd2 Qce5 Ba5 Bec3 Kc4 Bd4 Nc3 Rd7 Qdb6 Rd5 Qd6 Re2 Ra1 Nf2 Rd1 Nh1 Ra1 Ne1 Rg4 Rf2 Rf4 Ng2 Re1 Q5f6 Re6 Qe5 Ref6 Qe1 Qdb6 Qea1 Qc6 Nce6 Qd7 Qea3 Qd6 Nc5
n1n1Qnn1/1br5/1Qp2q2/R7/1q2b2N/1kPKQRp1/1B2r2q/3NNB1r w - - 0 1 legal: proof: e4 g5 b4 a5 h4 axb4 f4 g4 e5 Bh6 e6 dxe6 f5 exf5 g3 f4 Ne2 fxg3 Ng1 Bg5 hxg5 g2 Ke2 Kd7 a4 Kd6 d4 Kd5 a5 Kc4 g6 b5 a6 f5 a7 h5 g7 e5 c3 e4 d5 c6 d6 g3 d7 f4 Nh3 g1Q Qe1 f3+ Kd2+ Kb3 Qe3 f2 Ng5 h4 Bb2 h3 Rh2 Bb7 Ra5 Qf6 d8N Nd7 Bg2 f1N+ Ke2 Rc8 a8Q Nd2 Qf2 e3 Na3 Nf8 Rh1 h2 Qa6 Rc7 Nh7 Nc4 Qa7 Nb6 Qa6 Na8 Kd3 e2 Ne6 e1R Nhg5 Re2 Qd4 Qgf2 Ra1 h1B Bh3 Bd5 Bf1 Rh1 Nc4 Qh2 Nf3 Ne7 Nce5 Qfh4 R1a4 Nc8 Ba3 Ka2 Qc5 b3 Ned4 b4 Ne1 b2 Ndf3 b1N Nc4 b3 Nb2 Nd2 Qe3 Ne4 Qab6 Nf6 Nd1 b2 Rf4 Qh6 Nh4 b1Q+ Nc2 Qb2 Rf3 Qb4 Ne1 Kb3 Bb2 Ng8 Qe8 Nge7 Qe3 Qhf4 Qb6 Qg5 g8Q Qf6 Qg5 Ng8 Qge3 Be4+
1R4bk/1bq2nn1/Rp1Pr1p1/2nQB1r1/b1Q3NB/3n1K2/6Rq/1N2Q1r1 w - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Bg2 f5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qb3 Ra5 Kc2 Bf4 gxf4 Qe7 Kb2 Ra6 Qd1 Ra8 Kc2 Qd8 d4 Kf7 Kd2 f1N+ Ke1 c5 Kf2 g3+ Ke1 g2 Kf2 b3 a4 b6 h4 c3 e4 c4 e5 g6 e6+ Kg7 a5 b2 d5 c2 a6 c3 f5 Qd6 a7 Rh5 f6+ Kh8 f7 Rg5 f8R Bb7 e7 Nd7 e8Q Ng3 h5 Nf5 h6 Qh2 h7 Nc5 d6 Ng7 Qa4 Re8 a8Q Re6 Be3 c1Q Qe1 c2 Nh3 Rf5 Rg1 Rg5 Nc3 b1B Rb8 Ba2 Nb1 Bb3 Qc4 Ba4 Bd4 Bac6 Bf6 Ba4 Bd8 Nh6 Qaa5 Nf7 Ra2 Nb3 Qad5 Nc5 Ra1 Qb2 Ra2 Qc3 Ra3 c1N Ra2 Bd1 Ra6 Ba4 Bf6+ Be8 Be5 N1d3+ Ke3 f2 Kf3 f1B Nf2 Qc2 Ng4 Qc1 Rh1 g1R Bf6 Qe5 Rh2 Bh3 Bd8 Ba4 Rb2 Qh2 Rg2 Ree5 Nh6 Be6 Ng4 Nh6 Be7+ Bg8 Bf6 Re6 Be5 Nf7 Bg3 Ne8 Bh4 Kg7 h8B+ Kh7 Ba1 Ng7 Be5 Kh8 Qde4 Nd7 Qcd5 Qc7 Qec4 N7c5
bq1r1R2/K1N3B1/pP2p2b/Nrq2nBq/q3B2Q/k3n3/3n4/1b1N1QR1 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 h4 g5 e4 gxh4 c3 dxc3 Ra5 fxe4 Ra4 Qc7 Ra1 Qd8 Ke2 d5 Ke3 Kd7 Kd4 Kd6 g4 h5 f4 h3 b4 c2 f5 h2 f6 a6 g5 h4 b6 e3 b5 e2 f7 e1N g6 h3 b7 Nc6+ Ke3 Kc5 b8B Kb4 g7 d4+ Ke4 d3 b6 d2 Bf4 Nh6 g8Q Ng2 Qg3 Nd4 Nf3 Ne3 Ne5 Nf3 Rg1 h1Q Bg2 h2 Bb2 c1Q Nc3 Rg8 Rb1 Rg5 Nc4 Rb5 Na5 Qd7 Ba1+ Ka3 Bg5 Qc7 Qde1 d1Q Rf1 Bg7 f8N Rb8 Qe2 Qa4+ Qc4 Bg4 Ne6 Rd8 Rf2 Qd7 Nc7 Qc8 Qh3 Qhd1 Qh4 h1B Rf1 Bd7 Rg1 Bg4 Rb4 Be6 Qf1 Ba2 Rd4 Qe2 Nd1 Qc5 Bc3 Ne5 Bf3 N5c4 Rd6 Nhf5 Rf6 Bh6 Rf8 Bg2 Bg7 Bh1 Bg2 Qh5 Bf3 Nd5 Bg2 Nd2+ Ke5 Bb1 Bf3 Qb7 Ke6 Nde3 Bd5 Re8 Kd7 e6 Bg2 Qe5 Bd5 Qc8+ Kc6 Rd8 Bf3 Qd7+ Kb7 Qc8+ Ka7 Qc5 Bg4 Bb7 Bf3 Ba8 Be4 Qb8+
nB2r2k/1P1r1p2/2b4p/qR1n2qR/Q7/BNR1QBn1/2b3N1/K1b2nq1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 e4 a5 b4 d5 g4 d4 b6 c2 Kd2 a4 g5 f3 e5 a3 b5 d3 Kc3 a2 Kb2 h6 e6 f2 b7 d2 b6 h3 g6 h2 g7 Ne7 Bh3 Nd7 b8B Ra7 g8Q Bb7 Qgg4 Bc6 Qde2 d1B Bg2 Bg7+ Qe5 O-O Bf3 Rb7 Qa4 Kh8 Nd2 Qc7 Rb1 Nd5 e7 a1Q+ Kb3 Qd4 Ba3 c1Q+ Ka2 Bc2 e8R Qf4 Re6 Qg5 Ka1 Re8 Nh3 Qcg1 Nf4 Bf6 Qc3 Bd4 Re5 Be3 Ng2 Qcd8 Qc5 Rc7 b7 N7b6 Re4 Rd7 Rc4 Na8 Rc3 Qa5 Qe7 Bf4 Qe1 Be3 Rb5 Bf4 Nb3 Bc1 Qe7 Qe1 Rf1 h1N Qe6 Ng3 Rh1 Qd1 Rh5 Qg1 Qe7 f1N Qc5 Qg7 Qe3 Qg5
2r2b1k/pr2R2r/4qNnR/bRK4P/N1nN4/1Bp2q2/BQ1b1q2/1Q5r w - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 Kf2 e5 Ke1 exf4 b3 f5 Ba3 f3 Be7 h6 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kf7 d4 c5 e4 a3 h4 c3 f6 c2 b4 c1B e5 g4 b5 g5 b6 a2 h5 c4 b7 Qd6 d5 Nc6 b8Q Na5 Rh2 Qe6 d6 Rh7 d7 Ne7 d8R Kg8 f7+ Kh8 Qb2 Ng6 Rd7 Rc8 Nc3 Bd2 Na4 c3 Ne2 Nc4 Rb1 a1Q Re7 Qa2 Nd4 g3+ Kg1 g2 Kf2 g1R Rg2 Qd7 e6 g4 Bd3 Qe8 Bc2 Rh1 Bb3 Qc6 Rb7 Qd7 e7 Qd5 e8B Qe6 Qa1 Qc2 Qb2 Qce4 Rg1 Q4c6 Re7 g3+ Kf1 g2+ Kf2 Qc5 Re1 Qcf5 Re5 Qg4 Rb5 Qh3 Bc6 Qh2 Bd5 g1B+ Kf1 f2 Ba2 Qa6 Ke2 f1R+ Kd3 f3 Ra1 f2 Qdb1 Qe6 Bb3 Bfh6 f8N Qf4 Nd7 Bf8 Nf6 Qf3+ Kc2 Bh2 Ba2 Re1 Kb3 f1Q Kb4 Bc7 Kc5 Q1f2 Bb3 Rb8 Ra3 Ba5 Ba2 Rb7 Rab3 Re3 R3b4 Nce5 Bdb3 Nc4 Rb6 Re4 R4b5 Rf4 Ng8 Rff7 Nf6 Rc7+ Rc6 Rc8 Nd5 Nf4 Qg1 Bh6 Rec7 Qeg4 Qgb1 Bf8+ Rd6 Re7 Rh6 Ng6 Nf6 Qd7 Ng8 Qe6 Nf6 Rb8 Rd7 Rb7 Rc7 Re8+ Re7 Rc8#
2RB1Q2/Bnb1b1p1/N5Rb/N2k2br/K2pb3/3q1QN1/3Prn2/1b2Q1r1 w - - 0 1 legal: proof: b4 c5 f4 e5 a4 b5 axb5 cxb4 g4 exf4 g5 f3 Bg2 fxg2 g6 hxg6 Na3 g5 Nb1 g4 Bb2 g3 Ba3 Bd6 Bc1 Bf8 c4 Ke7 h4 Ke6 e4 a5 h5 f5 e5 d5 h6 a4 h7 b3 c5 b2 b6 f4 c6 a3 c7 f3 b7 a2 Ne2 g1B Na3 b1B Rh6+ Nf6 Bb2 g2 Ng3 Nd7 b8B Bb7 c8Q Be7 Qc3 Be3 Ba7 g1B Rg6 Bg5 Nc4 Nc5 Na5 f2+ Ke2 f1R Qe1 Rc8 Qf3 B1e3 Kd1 Rg1 Ba3 Re8 h8Q Ba8 Kc1 Nb7+ Kb2 Rc5 Kb3 Bh6 Bb4 Beg5 Ka4 Qd6 Qf8 Qa6 Bb6 Qd3 Bd8 Rb5 Bc5 d4 Ne4 Kd5 e6 Ng4 Bcb6 Nf2 Ba7 Bd6 e7 Bc7 Nb3 Bc2 Rb1 a1B Rc1 Bb1 Na5 Bb2 Rc4 Ba3 Rc3 Be5 Rc8 Bc7 Q3f4 Rb6 Qf3 Re6 Ng3+ Re4 Q8f6 Rh8 e8N Bb4 Qf8 Bbe7 Q3f4 Re2 Qf3+ Ke5 Nf6 Kd6 Nfe4+ Kd5 Nc5+ Ke5 Bb6 Nd6 Rb8 Be4 Q3f4+ Kd5 Na6 Nb7 Bc5 Bgf6 Qf3 Bhf4 Ra8 Rh5 Ba7 Bh6 Rc8 Bfg5
1q2R1QQ/5n1r/1q1rPB1n/1B4p1/3bBr2/1p1K1N2/k3bQ1R/r3rr1N w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 Nd2 hxg4 Nb1 d5 cxd5 c5 Qd3 cxd4 Qd2 Ra6 Qd1 Ra8 Kd2 Kd7 a4 Kd6 h4 Kc5 e4 b5 d6 f5 h5 g5 d7 b3 a5 Kb4 e5 d3 a6 g3 h6 f3 a7 f4 h7 g2 Rh2 f2 Nc3 b2 Nce2 b1R Rh5 f3 Nf4 Nh6 Qc2 Bc5 Qa2 Nc6 Qe6 Bd4 Qd6+ Kb3 Rh1 b4 Be2 f1R Qf6 f2 Bb2 Rbe1 Nf3 g1Q Nh3 Qg3 Qf8 Qb6 d8Q Bg4 e6 Qgb8 Rh2 Ne5 Qff6 Nef7 Qg8 Bh5 Rc1 Bg4 Rc8 Ka2 Re8 b3 Qf4 Rg1 Bc3 f1R Nf2 Rg2 Nh1 Rgf2 Bb4 Bh5 Be7 Bg4 Bf6 Bh5 Ne5 Bg4 Qe3 Rf4 Qf2 Bh5 Bf3 Bg4 Bc6 Bd1 Nf3 Bc5 Kc3+ d2 Kd3 Bd4 Qf8 Rg8 h8Q Rg7 Qfg8 Rh7 Ng1 Q8b7 Bb5 Rd8 a8B Rd6 Bg7 Qb8 Be4 Bc2+ Kc4 d1R Bf6 Rb1 Nf3 Ra1 Nd2 Bd1 Kd3 Kb2 Nf3+ Kb1 Nd2+ Ka2 Nf3+ Be2+
2qr2nk/3R2r1/bb6/QbB2nbp/pQ1Br3/KR1P3n/1Q2N3/1R3nN1 w - - 0 1 legal: proof: f4 d5 h4 g5 c4 dxc4 b4 gxh4 e3 e5 Bd3 exf4 Bc2 b5 a4 Bf5 axb5 Bc8 Bb3 cxb3 g4 h5 g5 c5 e4 a5 g6 f5 g7 Kf7 e5 h3 b6 b2 b7 h2 b5 a4 b6 f3 Ra2 f4 Nc3 b1R Ra3 f2+ Ke2 f1N Qb3+ c4 Kd1 f3 Kc2 f2 Bb2 Bc5 Qb4 Ra7 Nce2 c3 Rb3 Nc6 b8B Re1 b7 Bb6 Bd6 Nce7 b8Q Ba6 Bc5 Nf5 e6+ Kg6 e7 Kh7 e8Q Qc8 Qd8 Rd7 Nc1 Re4 Nce2 Rc7 Kc1 c2 Bbd4 Rf7 Kb2 c1B+ Ka2 Rb7 Qg3 Rbe7 Qgc3 Bb5 Qb2 Rd7 Nh3 Rb7 Rg1 h1N Ka3 Nf6 g8R Rg7 Rg4 Ba5 Rf3 Nh2 Rf8 Rhg8 Re8 Kh8 Rgg3 Rf8 Re7 Ng8 Rd3 Nf1 Rd7 Rfe8 Qc7 Rd8 Qa7 Bb6 Qaa5 N1e3 Rg1 Ba6 Ng3 f1B Rb3 Bfb5 d3 Nf2 Ne2 Bd2 Rb1 Nf1 Nhg1 Nh3 Bf8 Bf4 Bfc5 Bg5
1QB5/NRK4P/n1R1rp2/2p5/1n2qN1Q/n4Rnq/qrN4q/bk3bB1 w - - 0 1 illegal: No possible last move
2rNkbq1/pR1bN2B/3Qn3/R1B5/1pn3rK/QN1Pn1r1/1R2q3/nr6 w - - 0 1 legal: proof: b4 d5 a4 b5 h4 g5 f4 gxh4 c4 e5 cxd5 exf4 a5 Bxb4 a6 Bf8 Rh3 b4 Rh2 Nxa6 Rh1 Nb8 Kf2 Ke7 g4 Bh6 e4 f5 d3 c5 e5 c4 e6 c3 g5 f3 g6 h3 Kg3 c2 g7 f4+ Kg4 h2 Ra6 f2 Kh3 f3 Kh4 Nf6 g8R Nbd7 Bd2 c1N Ne2 Ne4 Nbc3 Ne5 Bh3 f1Q Bf4 f2 Qb3 Nc4 Nd4 Qe2 Ra5 f1N Be3 Ng5 Qa3 Nb3 Bf5 Na1 Rg7+ Kf8 d6 Rg8 d7 Qe8 Bf4 Nfe3 Rb1 h1R+ Kg3 Rh4 d8N Rb8 Rc7 Bd7 Nb3 Rc8 Rb7 Bg7 Bb8 h5 Bh7 Ke7 Rb2 Rh3+ Kf4 h4 Nd5+ Kf8 Be5 Rg3 Bd4 h3 Bb6 h2 Bd4 Qg6 e7+ Ke8 Bc5 Bf8 Nc6 Kf7 e8Q+ Kg7 Nd8 h1R Qe6 Rb1 Qd6 Qe6 Nc6 Kf7 Nd8+ Ke8 Ne7 Rg7 Qd4 Qg8 Qd5 Rh3 Qd6 Rh4+ Kg3 Ne6+ Ng6 Re4 Kh3 Rf4 Ne7 Rf3+ Kh4 Rfg3 Nd2 R7g6 Nb3 R6g4+
r4nn1/2QQ1BQr/3R1B1n/q3P3/3pk3/3p1N2/1BKR1qr1/qr1b2rN w - - 0 1 illegal: No possible last move
6rR/kNQq4/bb2br1R/1p1n1r2/bNPB4/QqQp4/6Bq/1bKB4 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 g3 Na6 Rh3 Nc5 Rh1 Ne4 Nd2 g4 Nb1 Ng5 hxg5 fxg3 Kd2 b5 a4 h5 e4 f5 c4 d5 e5 Kd7 a5 Kc7 a6 Kb6 a7 g2 g6 h4 g7 d3 e6 d4 e7 f4 e8Q g3 Qe7 h3 Bb2 h2 Ra2 b3 Qg5 f3 Be2 f2 Bc3 f1R Qh6+ Be6 Bh5 b2 Ra5 Nf6 g8Q Bc5 Nf3 g1Q Nh4 g2 Qf4 Rh6 Qe1 Nd5 Nf5 Rf6 Qf8 Qd7 Na3 b1B Nd6 Qe3+ Kd1 g1Q Nc2 d2 Nb4 Rb8 a8B Rf2 Qe7 Rg8 Nb7 Rf1 Qb8 R1f5 Bb2 Qg2 Ra2 Qa3 Qc7+ Ka7 Qeg3 Bb6 Qc3 Qh3 Ra1 Ba2 Kc2 d1B+ Kc1 Ba4 Bd1 Bb1 Ra2 Qb3 Ba1 d3 Rg2 Rff8 Rg6 R8f6 Rh6 Rg7 Qd2 Rgg5 Bd4 Rg8 Qc3 Qh5 Na6 Qh4 Qa3 Qg3 Nb4 Qe5 Rg1 h1B Rg5 Qed6 Rgh5 Qh2 Rh8 Be4 R5h6 Ne3 Nd8+ Bb7 Qc8 Ba6 Bg2 Rfg6 Nb7 Rgf6 Qc7 Nd5
1k2bB1K/1qb2RQq/1N3P2/3r2p1/1b1rnrNR/p7/3Rr3/1qrB1QN1 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 c5 a4 cxd4 e5 b5 e6 fxe6 Bc4 e5 Qd2 e4 Bf1 Nc6 Qd3 bxa4 Qd1 a3 Bf4 a4 Bc1 Na5 bxa5 Ra6 Nf3 Ra7 Ng1 Ra8 Kd2 g5 c4 d5 f4 Kd7 h4 Kc7 c5 e5 h5 a2 h6 e3+ Kd3 e4+ Kc2 a3 h7 d3+ Kc3 e2 Kd4 e1Q Ke5 g3 c6 g2 a6 e3 f5 d2 a7 d4 Be2 d3 Nf3 g1B Rh2 Nf6 Nc3 Bb4 Rh4 Qg8 Bb2 Bd7 Nh2 Rd8 a8R Be8 Ng4 Ne4 Ra7+ Kb8 Rf7 Rd4 Ke6 Qg3 Qf1 Qg2 Bd1 Bh2 Ne2 Bc7 Ng1 e2 f6 e1R Bc3 Re3 Rc1 a1R Rc2 Rc1 Ra2 Bba5 Bb4 Re2 Bf8 Bb4 Kf5 Rf2+ Ke6 Rf4 Rb2 Qg6 Rc2 Rg8 h8Q Qh7 Qg7 Rd5 Be2 d1Q Rd2 Qb3 Bd1 Qb1 Re2 d2 Rf2 Bd8 c7+ Kb7 c8N+ Bc7 Nb6 Kb8 Ba4 d1R Rd2 Re1 Bd1 Re2 Bb3 Rd8 Bc5 Bd7+ Ke7 Nf2+ Ne3 Qa8 Bd1 Ne4 Ng4 Qb7 Bd6 Bb5 Bc5 Rd4 Bd6 Rd8 Bc5 Be8 Kf8 Qf5 Kg8 R8d6 Kh8 R6d5 Bf8 Qh7+
2knB1r1/3p1Qr1/2n5/q1pn4/2NB1nQK/n7/1NNqP2n/R1RnRb2 w - - 0 1 legal: proof: h4 g5 b4 gxh4 d4 e5 f4 exf4 c3 a5 d5 Bc5 d6 axb4 Qd2 Bb6 Qd5 c6 Qd1 Bc7 dxc7 bxc3 Kf2 h5 a4 b5 g4 f5 g5 c5 a5 c2 a6 f3 a7 f4 g6 h3 g7 h2 Bd2 c1N Qa4 h4 Bg2 h3 Nc3 b4 Nb1 b3 Qc4 b2 Qa6 Nc6 Ba5 Rh7 Bf1 Nh6 g8N Nf7 Bb4 Bb7 c8Q Rg7 Nc3 b1N Bg2 Na3 Nf6+ Ke7 Nd1 Qa5 Nb2 Nfd8 Qc4 Nd3+ Kf1 f2 Re1 Kd6 Nf3 Rb8 Rg1 h1N a8R h2 Ng4 Ke7 Bh3 Kd6 Kg2 f1N Qg8 Nhf2 Qf7 Nd1 Nd4 Nfe3+ Kf3 Nd5 Ne5 h1Q+ Bg2 Qh7 Bc3 Qf5 Nc2 Qg5 Bd4 Qh6 Ra7 Ba8 Qa6 Bb7 Bh3 Kc7 Nec4 Kc8 Bg4 Qd6 Kg2 f3+ Kh3 f2 Kh4 f1N Bh5 Nh2 Qb5 Qh6 Qa4 Qhd2 Ra6 N1c3 Rc1 Nd1 Re1 Ba8 Qf8 N3f4 Be8 Rb3 Qf7 Rbg3 Qb3 Rg8 Qf3 R3g7 Qg4 Nb1 Rb6 Nc7 Nb4 Na7 Na4 Bg2 Nc2 Na3 Rbb1 Ncd5 Nab2 Bf1 Ra1 Nac6
1q2NKr1/1BQNnn2/p1b1q3/3P1q2/2R2QQb/kq3qp1/q7/B1n1B2R w - - 0 1 legal: proof: f4 b5 c4 d5 a4 dxc4 f5 bxa4 f6 exf6 g3 f5 Qc2 f4 Qb3 Ke7 Qd1 Ke8 h4 g5 Nf3 a6 Ng1 Ra7 Nf3 Rb7 Ng1 Rb5 Ra3 g4 Ra1 Rg5 hxg5 fxg3 e4 Kd7 Ke2 Kd6 Ke3 Kc5 Kf4 Kb4 Ke5 f5 d4 c5 d5 h5 g6 a3 b3 c3 g7 g2 Bf4 c2 Be3 c1Q Bb5 f4 Nd2 f3 Bc6 g3 Qc2 f2 Nc4 f1Q Bf2 h4 Nf3 g1Q Bb7 a2 Nd6 h3 Be1+ Ka3 b4 c4 b5 c3 b6 h2 Ne8 Qd1 Rc1 Ne7 Kf6 a1Q Kf7 Bd7 g8Q Nbc6 e5 Qb8 e6 Qa2 Qg4 Rg8 Qce4 c2 Qef4 Qe3 Ne5 Nf5 e7 Nd8+ Kf6 Bc6 Nd7 Qdd3 Qc7 Qdb3 Qgf4 Ne6 Kf7 Bh6 Qg4 Bg5 Qcf4 Bh4 Qc7 Rg6 Qcf4 Ng5+ Kf8 Rg7 Qc7 Qa1 Rg1 h1Q Bc8 Qbc4 b7 Qd2 Nd6 Qce2 e8Q Qdd1 Qe5 Qa2 Ne8 Nf7 Qed4 Qhe4 Rh1 Ne7 Qd2 Qff3 Qdf4 Qa7 b8B Qb6 Ba7 Qb8 Bg1 Qf5 Bb7 Qee6 Bd4 Qdd3 Ba1 Qdb3 Rd1 c1N Rd4 Rg6 Rc4 Rg8+
1qb3k1/QB1B4/pKP3qq/2b1N1Rr/4Bn2/1rp4N/2bb1Rqq/2Q1R3 w - - 0 1 illegal: No proof kernel
rqB2Nn1/q1p4P/2r3Nk/q1bq3n/2r2pR1/NR1QrB1K/1Q6/1Q3q2 w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Bb2 h6 Ng1 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kf7 d4 b5 a4 b3 e4 b2 h4 c3 h5 g4 d5 g5 a5 Kg7 f6+ Kh6 a6 b4 d6 c2 e5 c1R d7 b3 a7 Be7 f7 Rc6 Na3 b1Q f8N b2 e6 Qf5 Rh4 b1Q Ba6 Qa5 Bc8 g3+ Kf1 f2 Kg2 f1R Nf3 g4 Ne5 Bc5 e7 Qbb5 Qb1 Rc1 e8B Rc4 Neg6 Qg5 d8Q Nd7 Qf6 Qb8 Qfb2 Ndf6 Qd3 Rh7 Rb1 Re7 Bf7 Re8 Bd5 Re3 Be4 Qd5 Bf3 Kg5 h6 Nh5 h7 Kh6 Kh1 g2+ Kh2 g3+ Kh3 g1Q Rg4 g2 Qbb3 Qbb4 Qb2 Rb8 a8Q Qf1 Qb7 g1Q+ Qg2 Ra8 Rb3 Qbb6 Qb8 Qba7 Qb7 Qb1 Qb2 Qb8 Qb4 Qbe1 Qb6 Qaa7 Qbb1 Qea5 Qb4 Qd1 Qbd2 Qg1 Qdb2 Qf1+
b5r1/1p3n2/qR1q2R1/k1B1Q3/2qP1r2/3Nn1QB/NBpN1r2/K1qq1r2 w - - 0 1 illegal: Other
5nkb/2pQbR2/1p4r1/1N1KBq1Q/2b2N2/2BPqn2/qb2QR1n/N1n5 w - - 0 1 illegal: No possible last move, all moves rejected
k1bN1B2/1p3B2/3r1n2/5pBb/rNP1R1q1/QKrq1N2/2Rr2Qb/5q1q w - - 0 1 illegal: No possible last move
1B1k2r1/2n3Rq/b1Q5/Kqr1p2q/R1Bp1P1b/2R2Bp1/4br1N/Qn1N4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 a5 f4 d5 h4 g5 c4 e5 b4 a4 b6 a3 b5 a2 h5 d3 Kc3 e3 h6 g3 b7 d2 h7 g2 c5 g4 Kb4 g3 b6 d4 Nf3 g1Q Bc4 e2 Nh2 e1R Ba3 Qh4 Nc3 Ne7 c6 Rf1 c7 Rg8 h8R Rf2 Rh7 Na6+ Ka5 Qh5 b8Q Nd5 b7 Be7 Bd6 Bh4 Rg7 Qf1 Qb1 Qd3 Rc1 Qdh7 Nd1 Nc3 Qa7 Rb8 Qe4 Nb1 Rc3 Ra8 Qh1 Rb8 Qc5 Ra8 b8Q Ra7 Ne3 d1B Qa3 Be2 Nd1 Ra8 Qbb3 Bb7 c8B Kd8 Bg4 Rc8 Bb8 Rc5+ Qb5 Nc7 Qc6 Ba6 Bf3 Nd2 Rb1 a1Q Rb4 Qb2 Qa1 Nb1 Ra4 Qxb5+
B3qb1R/5P1R/R1pn1Q2/1kq4K/5r1b/1b1q1Brr/NpQ2np1/1N3B2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 f5 b4 axb4 e4 fxe4 h4 g5 Bb2 gxh4 Be5 Ra7 Bh2 Ra8 Bg3 hxg3 Ke2 Kd7 a4 b5 f4 h5 d4 e5 f5 e3 Kf3 g2 f6 e2 g5 e1R a5 h4 Kg4 h3 f7 e4 a6 b3 a7 e3 g6 h2 d6 Kc6+ d7 b2 g7 e2 Ra4 b4 d5+ Kb5 d6 c6 Qd2 b3 Qc3 Rh3 Ra6 Nh6+ Kf4 Qe8 Kg5 Ng4 d8Q Nf2 g8B Nd7 Qg3 Nc5 d7 Nce4+ Kg6 Nd6 Qf6 Rd1 d8R Rd4 Qgf3 Be6 Qc3 Rf4 Bh7 Bc4 Qd3 e1B Qc2 Rb8 a8B Rb7 Nd2 b1Q Ne2 b2 Nc1 Re7 Rc8 Ree3 Na2 Rd3 Kg5 Bb3 Be4 Qd1 Nb1 Qf3 Rg1 h1Q Kg6 Qh2 Rh1 Qg1 Bd5 Qfe2 Bf3 Re3 Kg5 Qd3 Rh2 Nfe4+ Kg6 Bh4 Kh5 Nf2 Be4 Reg3 Bf3 Qe1 Rd8 Be7 Rh8 Bf8 Rh1 Qe8 B1e2 Rh2 Qg7 Nh3 Bf1 Qc5+ Qe5 Bg5 Qf6 Rf5 Kg6 Nf2 B3e2 Rh4 Bf3 Rhf4 R1h4 Rh3 R4h7 Bh4 Qe5 Rf6+ Kh5 Rg6 Qf5 Rgg3 Qe5 Nf5 Qf6 Nd6+
2q2rq1/K1Nnp1r1/3b4/1pRQ3p/BN2PNrk/8/nb1B4/QnQ1R1q1 w - - 0 1 legal: proof: d4 a5 b3 c5 b4 axb4 g4 cxd4 a3 bxa3 Ra2 f5 Ra1 fxg4 h3 g5 Kd2 g3 Qe1 b6 Bg2 g4 Qf1 Bb7 Qd1 Bf3 Bf1 g2 Ke1 g3 Bf4 Bg4 hxg4 Ra7 Bc1 Ra8 Kd2 Kf7 Kd3 Kg6 Kc4 h5 Kb5 d5 e4 a2 f4 d3 c4 d4 c5 d2 f5+ Kg5 f6 d3 c6 Qc8 c7 Bh6 f7 Na6 f8N Nb4 Nh3+ Kh4 g5 g1Q g6 g2 g7 Nf6 g8Q Bf4 Ne6 Bd6 Nc3 Rh7 Nd5 Nd7 Qh8 Qg8 c8Q Rg7 Nec7 Rg4 Qb3 d1Q Bd2 Qc2 Rc1 a1B Re1 Na2 Nb4 Qc3 Qd5 Bb2 Be2 Rb8 Ka6 b5 Bd1 Rg7 Ba4 Qcc5 Qcb7 Rf8 Qc8 Rg4 Qhd4 Qc4 Ka7 Rg7 Bc3 d2 Rh2 d1N Bd2 Qc3 Nf4+ Qh3 Rh1 Ndc3 Rc1 Nb1 Rc5 Qgh2 Rhc1 g1R Re1 Qhe6 Qc3 R1g4 Qc1 Qg1 Qcb7 Qh7 Qe5 Qhg6 Qbd5 Qg8 Qec3 Qe8 Qcd4 Qc8 Qdc3 Ba3 Qa1 Bb2
bBrRQr2/1pPK4/5Qn1/rppQn2N/N1q2b2/3b1B2/2R1q1R1/3k2n1 w - - 0 1 illegal: Other
4n3/N4Np1/2rb1pnN/3n1P1n/B1RbrBK1/q1r2bQR/2p1k3/6BQ w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 d4 dxc4 Nf3 e5 Ng1 b5 axb5 exd4 Bd2 axb4 Be3 Qg5 Bc1 Qd8 f4 Kd7 Kf2 Ke6 Kg3 Kf5 h4 Ke4 h5 c5 f5 b3 e3 d3 h6 c3 h7 b2 b6 f6 b7 c4 Nh3 d2 Qe1 d1N Qd2 c2 Ra4 Qd6+ Kh4 Kf3 e4 c3 e5 g3 e6 g2 e7 g1B e8Q Nf2 Nf4 Ne4 Nh5 Qa3 Qh6 Ne7 Be3 c1R Qeg6 Ra6 Ng3 Rc6 Rh3 Na6 b8B Nc7 Nh1+ Ng3 Nf2 Bb7 Ng4 Ne8 Bb5 c2 Nc3 b1N Qgg5 Re1 Bbf4 Bf2 Bb6 Re4 Rc4 Bd4 Ba4 Rg8 Nb5 Nc3 h8N Ke2 Qhh5 Ncd5 Na7 Ba8 Qh7 Nh5 Nh6 Ng6+ Kg4 Bd6 Qh4 Rf8 Qg3 Rf7 Bc5 Rfc7 N8f7 Rc8 Bb6 R8c7 Rb4 Rc3 Rc4 Rc6 Qh8 B4e5 Bf2 Bd4 Bg1 Nb6 Qg8 Re6 Nb5 Rc8 Ne5 Bd5 Na7 Rc6 Nf3 Re5 Ng5 Bh1 Qd5 Ree3 Bf2 Re6 Qdg2 Nd5 Ngf7 Re4 Q2h2 Bg2 Qh1 B6e5 Be3 Bd6 Bg1 Bf3+
3BQ1r1/NnB1bp2/b1Q5/Bn1KbR2/nr4pN/1NP1q3/2kr1p2/1r3R2 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 h4 g6 h5 gxh5 g4 Ne7 g5 Ng8 Bh3 Be7 Bf5 Bf8 Bg4 hxg4 Kf2 Ke7 b4 Kd6 e4 Ke5 g6 a5 g7 h5 b6 d5 b5 a4 b7 d3 b6 Kd4 e5 h4 e6 d2 e7 f3 e8N h3 Ba3 h2 Nd6 Ne7 g8Q Qe8 Qc1 d1R Qcg5 Nec6 Kg3 f2 Kf4 Na7 Qh4 Na6 b8B Be7 b7 Nb5 Ra2 Nc5 Qh6 Rd2 Bc7 Rb8 Bb4 a3 Ra1 a2 Bd8 Qc6 Qe8 Rg8 Bba5 Qb6 Qe6 Qa7 Kf5 Qb6 Q6d7 Ke3 Ke5 d4 Qc6 d3 Nf3 Ke2 Rd1 h1R Rf1 Rg1 Ne1 Kd1 Kd5 Kc1 Nf3+ Kb2 Na3 Qa7 Rae1 a1B Re5 Qb6 Rf5 Rh1 Ne1 Kc1 Nb1 Be5 c3 Qa7 Ng2+ Kc2 Rd1 Re1 Nh4 Re4 Qa6 Rb4 Rf1 Qb6 Nc4 Qh6 Nb6 Qe3 Qa8 Re2 Qc6 d2 Qe8 d1N Nd2 Nb2 Nb3 Nba4 Qa6 Ra8 b8B Nb7 Bbc7 Rb8 Qa8 N7d6 Qec6 Ba6 Nc8 Rb6 Na7 Nb7 Nc5 Rb1 Nb3 Rd2+ Kc4 Nd4+ Kd5 Rb4 Qc8 Bd3 Q8d7 Ba6 Qe8 Nb5+
rnk2r2/2bp2q1/6Np/P1QBN1Bp/Bb6/3n1NKn/2b3QR/1R1n1r2 w - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 h4 g6 h5 gxh5 e4 a6 b5 axb5 exf5 bxc4 Qe2 c3 Qg4 Qa5 Qd1 Qd8 f4 b5 Kf2 e5 a4 b4 g4 c2 a5 e4 f6 b3 g5 b2 f5 h6 g6 d3 g7 e3+ Kg3 e2 Kh3 e1B Bg5 c1N Rh2 d2 Na3 b1R Bb5 Nd3 Qc2 d1N Nf3 Qe7 f7+ Kd8 f6 Bg3 Ba4 Bb7 Nc4 Be4 Qg2 Bc7 Nce5 Rc1 Rb1 Kc8 Nc6 Qe5 Kh4 Qd4 Nce5 Ne7 g8B Nd5 Kg3 Bb4 f8N N5f4 Nfg6 Nh3 Bd5 Rf8 f7 Bb6 Nc6 Qg7 Nce5 Bd8 Nfh4 Bc7 Nf3 Rd8 f8Q Re8 Qf7 Rf8 Qe7 N3b2 Ba2 Ndf2 Qd6 Rf1 Bg8 Bc2 Bd5 Nbd3 Qc5 Nd1
2Br1QNn/3B2Kq/p1nQbp2/P2n4/pn1N1n2/7Q/3R2b1/Nkr1R2q w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 a5 e5 Qd3 exf4 Qc4 Qf6 Qa2 Qd8 Qa4 bxa4 g4 g5 h4 Ba3 Kd1 f3 Bf4 gxf4 g5 Be7 g6 Bg5 hxg5 f2 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd3 Ke5 e4 h5 b4 f6 c4 f3 g7 h4 g6 h3 c5 a6 c6 h2 b5 Qe7 b6 Be6 c7 Nc6 c8Q Nh6 g8Q Qh7 b7 Nf7 Qg7 Rd8 Ne2 Nh8 Rg1 h1Q Bh3 f1B Rg4 f2 Na3 Bg2 Qf8 f1N g7 Ng3 g8N Nh5 Re1 Rb8 Qd7 Rbc8 b8Q+ Rc7 Nc2 Nf4+ Kd2 d3 Ke3 d2 Ned4 Qe7 Qb4 Qh7 Na1 Rcc8 Rg3 Rc7 Rf3 Rcc8 Rf2 d1N+ Kd2 Nc3 Ke3 Na2 Rd2 Ne7 Qc3 Nb4 Qd3 Rc1 Qc6 Bf7 Bc8 Be6 Qd7 Nec6 Qa3 Bf7 Qh3 Be6 Qf7 Kd6 e5+ Kc5 Qf8+ Kc4 Qd6 Bg4 e6 Bf5 e7 Be6 Ndb3 Kc3 e8B d4+ Kf2+ d3 Ke3 Qg6 Bed7 Qh7 Qf8 Na2 Qad6 Nab4 Nc2 Kb2 Nba1 Kb1 Nd4 Qe4+ Kf2 Qh7 Kg3 Qg7+ Kh4 Qe7 Ra2 d2 Rc2 d1N Rd2 Ne2 Kh5 Nf4+ Kh6 Nc3 Nab3 Qf7 Na1 Qh5+ Kg7 Ncd5 Qh4 Qf5 Qh3 Qh7+
5B2/n2RrN2/8/pnP1NnRb/1Nr1Qn1K/k1q1Qrpb/2qp3B/3R4 w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 Be3 f3 Bg5 Be7 Bc1 Bf8 Na3 h5 Qd3 f5 Nb1 f2+ Kd2 f4 Bh3 f3 Be6 Bd6 Bg4 Bf4+ gxf4 hxg4 Qh7 Qc7 Qh3 Qb6 Qf1 Qc7 Qd1 Qd8 h4 Ke7 e4 Kd6 b4 f1B Ke1 g5 Kf2 a5 Kg3 d3 c4 d2 f5 a3 b5 Kc5 f6 Kb4 h5 d5 c5 a2 f7 d4 f8B d3 e5 f2 b6 Ne7 e6 Ra7 b7 Bh3 h6 f1R h7 Nf5+ Kh2 Nc6 e7 Rf3 Qe2 d1N e8Q d2 Nc3 Qd3 Bb2 Qc2 b8R+ Rb7 Q2e5 Na7 Nd5+ Kb3 Qg3 Nc3 Qe4 Ncb5 Be5 Ka3 Nb4 Re7 Rd1 a1Q Rb7 Qac3 Rd7 Bb7 Qf2 Bd5 Bc7 Bf7 Qfe3 Bh5 Bg3 Rg8 h8N Rg6 Nf7 Rge6 Qa8 Re4 Be5 Rc4 Qae4 Rf4 Nf3 g3+ Kg1 g2 Kf2 g4 Rhg1 Nfd4 Kg3 Rf5 Rgf1 g1N Kh4 Nge2 Bh2 g3 N3e5 Rf6 Rf4 Rf5 Rg4 Rf3 Rg6 Nf4 Rg5 Nf5+
1nRbr3/2K1Qn2/1Bpr2p1/1Nq2n1p/1Q6/4r3/brkNP1B1/R1N1qQ2 w - - 0 1 illegal: No possible last move
1b1NnRr1/5K1P/QQ2RB2/3N1n2/1pp1B2q/B1q1rr1k/2p1n1N1/5br1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 e3 a5 e4 axb4 g4 h5 a3 f5 exf5 bxa3 Be2 hxg4 Bd3 Qd7 Bf1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 Kh4 f4 g5 d4 b5 f6 c5 d5 a2 f5 b4 f7 c3 f6 c2 h3 g3 d6 g2 d7 c4 Ke6 g4 Qd4 Nc6 Bd3 Ra3 Be4 g3 Ne2 g1R Nbc3 g2 Nd5 Rf3 Nef4 Bh6 Rb1 a1Q f8Q Qc3 f7 Nf6 Ba3 Ne8 Re1 Rg8 Qb6 Bg7 Rh2 Be5 Qh6+ Kg3 f8N Nd4+ Kf7 Nf5 h4 Bb8 h5 e5 N8e6 Qh4 d8B Bd7 Bf6 Bc6 Bd3 e4 Nd8 e3 Be4 e2 Rf1 e1R Qg6+ Qg5 h6 Ree3 h7 Ba8 Rh6 Bb7 Qh5 Qh4 Qg6+ Kh2 Nd3 Kh3 Ne1 Rh1 Qa6 g1N Ng2 Bc6 Bh8 Ba8 Qgb6 Ne2 Re6 Rg1 Bf6 Neg7 Be5 Nc1 Nf6 Nh6+ Kg6 Rf5 Bd5 Ng4 Ne1 Ne2 Bf3 Be4 Nd5 Ne8+ Bg7 Nh6+ Ng2 Nc1 Rf2 Bd3 Be4 Bf1 Rf4 Ne2 Rf2 Re5 Rff6 Rf5 Rf8 Rh8 Be5 Rff3 Bf6 Nf5 Kf7 Rg8
B2r4/1qP2R1N/1Q3K2/2R1Q1p1/nN1B1b1q/nQnbp3/1p3Nkr/4rr2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 g4 f5 exf5 h5 a3 bxa3 Bg2 hxg4 Bh3 Ra7 Bf1 Ra8 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 e5+ Kg3 b5 c4 b4 f4 b3 h4 a2 h5 b2 Kh4 e4 h6 d3 h7 g3 c5 e3 c6 d2 c7 g2 Qe2 d1R Qd3 d4 Nc3 Bd6 Bd2 Na6 Nh3 g1R Nf2 Ne7 Bg2 Rde1 Rc1 a1N Na2 Nc5 Bc3 Nd5 Nb4 Na4 Qc4 g6 Qb3 Ba6 Rh3 Bd3 Rf3 Rgf1 Kg4 Kg7 f6+ Kh6 f7 Nc2 f8N Na3 f5 Bf4 f6 g5 f7 Qb8 Rc2 Qb7 Bh1 Rd8 Bg2 Ba6 Kf5 d3 Bd4 Kh5 Rc5 Ndc3 Kf6 Kh4 Bh1 d2 Bg2 Rg8 Bh1 Rg7 h8Q+ Rh7 Bg2 Rh5 Nh7 d1Q f8Q Bd3 Qd6 Qb1 Qb6 Qc2 Ne4 Qf2 Qe8 Kg4 Qe5 Rh2 Bh1 Qh4 Bg2 Bg3 Rf5 Bf4 Nf2+ Kg3 Bc6 Qb8 Ba8 Qb7 Kg6 Be2 Rf7 Kg2 Kf6 Bd3
1k3q2/1bp2RBQ/3nb1R1/Qn2n2p/P3p1qr/KN1nb3/1r5B/1N2RN2 w - - 0 1 legal: proof: c4 f5 b4 a5 h4 axb4 e4 fxe4 a3 d5 cxd5 g5 Bc4 gxh4 Ba2 b3 Qe2 bxa2 Qh5+ Kd7 Qd1 Ke8 Nc3 Kd7 g4 b5 d4 e5 Kd2 b4 Kc2 b3+ Kb2 e3 f4 h5 f5 e4 g5 h3 a4 h2 g6 e2 f6 e1N g7 Ra7 d6 Qe7 f7 Nf6 g8Q Ne8 d5 Nd3+ Ka3 b2 Bf4 b1B Qd2 Nc6 Nf3 Nce5 Qh7 Bh6 f8R Rg8 Rg1 h1Q Nh2 Rg4 Rf7 Qf3 Nf1 Rh4 Rg6 Rb7 Bh2 Rb2 Qe1 Bc2 Rd1 a1N Nb1 Qf4 Qa5 Bb7 Rc1 Kc8 Re1 Qd8 d7+ Kb8 d6 Qc8 d8B Qfg4 d7 Be3 Bf6 Bb3 d8N Nd6 Ne6 Qf8 Nd4 Be6 Bg7 Nb3 Nf3 Nd4 N3d2 Qd8 Nb3 Qe8 Rf2 Qf8 Rf7 N4b5+
B1BN1R1n/1p6/q2qrn2/1R1P3k/bpq1R3/1p1qQ2N/3nr2K/2Q1Nb2 w - - 0 1 illegal: No possible last move
2R5/3q1nNq/k1K2nR1/N4np1/BQp1QrQ1/6N1/1pnb1PB1/n3q2r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 c4 fxe4 c5 h6 Bb2 d6 Bc3 dxc5 Bf6 c4 Bg5 Bf5 gxf5 hxg5 Ke2 Kd7 Ke3 Kc8 a4 b5 d4 Kb7 h4 c5 h5 e5 a5 c3 h6 g4 f6 g5 h7 c2 d5 c1N d6 b3 f7 b4 d7 b2 Qe2 g3 Qd2 g2 Na3 b1Q Ne2 g1N Ng3 b3 Bg2 c4 Nc2 b2 Qe2 Ka6 Nd4 Nh6 Qg4 Nge2 Ndf5 Bb4 f8Q Nb3 Ng7 Nf7 Qe7 Qc8 d8N Qd7 Nc6 Ned4 Rh6 Rf8 Ra3 Na1 h8Q Qh1 Rd6 Qh7 Rg6 Bc3 Qb4 Nf5+ Ke2 e3 Kf3 e2 Ke4 e1N Rb3 Qc8 Kd5 e4 Qg8 e3 Kc5 Qh5 Qh7 Bd2 Rd3 e2 Rd8 Qd7 Rc8 Qh3 Qhh4 Ra7 Qe4 Nec2 Qhg4 N7d6 Kd5 e1Q Kc5 Qh7 Kd5 Rb7 Kc5 Rb6 Kd5 Kb7 a6+ Ka8 a7 Kb7 a8B+ Ka6 Nf1 Qb7 Qef3 Nh4 Qfe4 Nd7 Rh6 Rf4 Ng3 Nhf5 Rf6 Qc7 Na5 Nf7 Bc6 Qd8 Ba4 Rc6 Re6 Qe8 Re7 Rh6 Re5 Rh1 Kc6 Qe7 Re6 Qd8 Rh6 Nf6 Rg6 Qd7+
1rq1R3/2q2bkB/R4r2/4NPpp/2p1N1B1/2B1bQ1q/1n4rr/2RrK2Q w - - 0 1 legal: proof: g4 a5 e4 f5 c4 fxe4 b4 axb4 f4 d5 f5 dxc4 h4 Qd6 g5 Nd7 h5 Ndf6 gxf6 Qh2 Na3 Qxh5 Nb1 Qh2 a4 Kf7 d4 e5 d5 b5 d6 g5 d7 c5 d8R e3 a5 e4 a6 c3 a7 c2 Nc3 b3 Bd2 c1Q Nce2 b4 Rd6 b2 Nh3 b1Q Rd7+ Ne7 Rd3 b3 Rg1 b2 Nd4 e2 Nf4 Qbc2 Nde6 b1R Nh3 Rb2 Rdg3 Ng6 Ng7 Be6 Nf2 Qh3 Ra6 Rab8 a8B Ne5 Ne8 Nc4 Bd5 h5 R3g2 Rh6 Bc3 Kg8 Ng4 Bf7 Nd6 Ra2 Nh2 Nb2 Ng4 Bg7 Ne5 Kh8 Kf2 e1R+ Be2 Kh7 Qd3 Rd1 Qf3 Qf4 Re1 e3+ Kf1 Rd2 Ne4 Rg6 Bd1 e2+ Kf2 Bf8 Reg1 Be7 Ke1 Bd8 Rg3 Bb6 Qh1 Qc1 Rd3 Kh6 Be6 Kh7 Rd8 Rh6 Re8 Qfh2 Nf3 Qc7 Ne5 Qc8 Bd5 c4 Qf3 Rc2 Rh1 Qf4 Rf1 Be3 Rh1 Bg8 f7 Rf6 f8Q Bf7 Qc5 Kg7 Qc6 Bg6 Bg8 Bf7 Bh7 Rd2 Ng6 Qfc7 Ne5 Rd4 Nd2 Rh4 Rf1 Rg4 Qh1 Rg1 Qcf3 Rg2 Ne4 Bf2+ Kd2 e1R Be2 Rea1 Rc1 Be3+ Ke1 Na4 Rd8 Rc2 Re8 Nb2 Qf4 Rh2 Bg4 Rcg2 Qff1 Ra5 Qf2 Rd5 Qf3 Rd1+
Q1q2QRB/1qbbKp2/4N1rR/1pbq1Nn1/b2B2pR/4b3/2P4B/4nk2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 g5 dxe4 g6 c5 Be2 c4 Bf1 hxg6 Bh3 g5 Bf1 g4 Bg2 e3 Bc6+ Bd7 Ba4 Ra6 Qf3 Ra8 Bb3 cxb3 Qd1 Bc8 f4 b5 Qe2 e5 Qd1 e4 Nf3 Rh5 Ng1 Re5 fxe5 Ra6 Nc3 Rh6 Nb1 Rh8 Ke2 Ke7 d4 Ke6 a4 Kd5 h4 g5 e6 b2 a5 b3 a6 g3 h5 g2 h6 g4 a7 Bc5 a8Q+ Nc6 h7 Nf6 e7 Rg8 h8B Bd7 e8R Rg6 Re7 Qc8 Ra5 Nh7 Nh3 g1B Na3 b1Q Re8 b2 Ra6 Ng5 Rg8 Qa2 Nc4 b1B Nd6 Qb3 Qe1 Ba2 Nf5 Kc4 d5 Ne5 d6 Nd3 Qf2 Ne1 Bcb2 Kb4 Qh4 Qd5 Qh6 Bb3 Qf8 Ba4 Bbd4 Kc4 Nf4 Qdb7 Kd1 e2+ Kd2 Qd5 Ne6 e3+ Kc1 Qdb7 Kb2 Kd5 Kc3 Ke4 Rc6 Kf3 Rh4 Kf2 Rb6 Kf1 Rc6 Be8 d7 Bh2 d8B Bc7 Bd8f6 Bd7 Bde5 Nef3 Bh2 e1B+ Kd3 e2 Bd4 Bf2 Ra6 Ne1+ Kc3 Ba7 Kb4 Be3 Rb6 Nef3 Kc5 e1Q Nd6 Qd2 Nf5 Qa6 Kd5 Ne1 Rd6 Qab7+ Ke5 Rg7 Kf6 Rg6+ Ke7 Qd3 Nc5 Qc4 Rf6 Qcd5 Ne6 Rg7 Rfh6 Rg6 Rh3 Bab6 R3h4 Bc5+
q1RNQK1n/4Q3/Nb5B/rBq3r1/4q1Pb/Rp6/1ppNb1r1/2Qq2k1 w - - 0 1 legal: proof: f4 a5 c4 d5 b4 axb4 g3 dxc4 Kf2 e5 Ke1 exf4 h3 fxg3 Qb3 g5 Qc2 g2 Qd1 g4 Qa4+ Nd7 Qd1 g3 Nc3 Ndf6 Nb1 Ng4 hxg4 Ke7 Nh3 Kd7 Ng1 Ke8 d4 Ke7 Kd2 Kd6 Ke3 Kd5 Kf4 c5 a4 f5 e3 h5 a5 b5 a6 c3 a7 c4 Ra5 c2 Rh3 b3 Qe2 h4 Ra1 c3 Nd2 b2 Nb3 b4 Qf2 Ba6 Ra3 Be2 Bd2 c1Q Qe1 Be7 Ra4 Nh6 Rh2 h3 Nc5 b3 Na6 Nf7 Qd1 Rg8 Ra3 Rg5 Nf3 g1B e4+ Kc4 e5 Kd3 d5 g2 d6 Nh8 e6 Bb6 Ke5 g1R d7 Rg2 Rh1 h2 Kd5 Bf6 Kd6 f4 e7 c2 Qe1 Qd1 e8Q Qc8 d8N Qc5+ Ke6 Qa1 Qe7 Ke4 Rg1 h1Q Qc1 Qh7 Be3 Kd3 Nd2 f3 Kd7 f2 Ke8 Qe4 Rh1 Qa2 Bf4 Kd4 Rh6 Kd3 Kf8 Kd4 Bh2 Ke3 Rg6 Qa1 Rg8 Qa2 Nb1+ Kf3 Bf4 Qa1 Bd2 Kg3 Be3 Kh2 Nd2 Kg1 Bf4 Re5 Bh6 Bh4 Kg7 Rg5+ Kf8 Bd1 Bb5 f1Q+ Ke8 Be2 Rf8 Rb8 a8Q Qd1 Rg8 Rb7 Kf8 Rd7 Qc6 Rd4 Qe8 Ra4 Rg6 Ra5 Rc6 Qcd4 Ra4 Qa3 Rc8 Qac5 Ra2 Qa8 Ra3 Qde4
6Q1/qR1n4/2k2n1N/qbBp2NQ/1Bn1bpbP/2rp2R1/B4K1N/1q4b1 w - - 0 1 illegal: No possible last move, all moves rejected
2QB4/r3qBk1/1qnn1p2/2pRr2p/N1n5/b1NN2r1/Q4RBP/2q1r2K w - - 0 1 legal: proof: f4 a5 g4 e5 b4 axb4 c4 d5 g5 dxc4 g6 Bg4 Qc2 Kd7 Qd1 Be6 Qc2 f6 Qd1 Bf7 gxf7 exf4 Kf2 Ke7 Kg2 h5 e4 g5 a4 b5 d4 b3 d5 c3 a5 b4 a6 b2 a7 b3 e5 c2 e6 g4 Be3 g3 Qd2 Nh6 Nf3 Nf5 Ne1 f3+ Kg1 c1R Bb6 g2 Ra5 Rd1 Nd3 Rg8 Rb5 Rg5 Qe1 c6 Nc3 b1Q Bc7 b2 Ba5 Bh6 f8N Qc1 Bc7 b1Q Nd7 Bf8 d6+ Ke8 e7 Kf7 e8B+ Kg7 Ra5 Qb6+ N7c5 Rg3 d7 Bd6 Qe5 Qe7 d8Q Re1 Bf7 Re3 Kf2 g1R Bg2 Rd1 Rf1 Ree1 Kg1 f2+ Kh1 Ree3 Re1 f1N Qc8 Nd2 Bd8 Nc4 Rf1 Ree1 Qe3 Re2 Qd2 Ree3 Qe1 Re5 Na6 Bc5 Rf2 Bb4 Nac5 Nfd6 N5a4 Bc5 Nab2 Bb4 Rd5 c5 Rf1 Nc6 Rf2 Rb8 a8Q Rb7 Qa2 Ba3 Nba4 Rc7 Qh3 Ra7 Qc8 Rdxe1+
r3b2r/n3KQrQ/3n1q2/p1B4p/1nrPN2p/4N2N/k2B3n/q2R1Q1R w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 g4 exf4 h4 b5 h5 bxa4 g5 g6 h6 Bg4 Bh3 Bg7 hxg7 Bf5 Bg4 Qd3 Bh5 gxh5 g6 Nf6 g8N Qd8 g7 Bc8 Kf2 Kd7 Kf3 Ke6 b4 Kd5 d4 a5 e3 c5 b5 c3 b6 Kc4 e4 h4 e5 h5 b7 a3 e6 a2 e7 c2 e8Q Kb3 Qe4 c4 Be3 c3 Qg6 Ne4 Qc6 f5 Qf6 Nd6 Ne7 Nc6 b8B Bd7 Qh6 Na7 Na3 Be8 Qe2 c1R Ng8 c2 Bd2 Qf6 Nh3 Rg1 Qa6 c1R Qh7 Rc4 Rd1 a1Q Nc2 Ka2 Ne3 Rg5 Bc7 Rg4 Bb6 Rg5 Ke2 f3+ Kd3 f2 Bc5 f1N Qb5 f4 Qa6 Qf8 Nf6 f3 g8Q f2 Ne4 Rg7 Qf7 Nh2 Qb5 f1N Qa6 Nb7 Qaf6 Nd6 Qf2 Ng3 Qf1 Ne2 Nef2 Nb7 Ke4 Nc3+ Kf5 Nd5 Ke6 Nb4 Ne4 Nd6 Kf6 Rg1 Ke6 Qh6+ Ke7 Rg7 Qe1 Qg6 Qf1 Qf6+
3r1nb1/2rN3R/6Bn/r1R1B1N1/P1pbb1n1/2Q2pp1/1RB1K2k/1b1Q3r w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 a5 c5 axb4 g3 fxg3 c6 g4 Bg2 Qg5 hxg5 dxc6 Bh3 c5 Bf1 c4 e4 Kd7 a4 Ke6 d4 b5 g6 c5 g7 f5 e5 h5 Ra3 g2 Rhh3 b3 Nd2 c3 Ngf3 g1N Qe2 b2 Rh2 b1B Qd1 c2 Qe2 b4 Qf2 b3 Qe2 g3 Bb2 c1R+ Qd1 f4 d5+ Kf5 e6 Kg4 d6 h4 e7 h3 e8Q Nd7 Nc4 Nh6 g8B Bg7 Rg2 h2 Bd3 Kh3 Be5 h1R Bc2 b2 Bgh7 Nf8 d7 Ra5 d8R Be6 Bhg6 Bg8 Qc6 Bf6 Nb6 Bg7 Nd2 Nf3+ Ke2 Nh2 Rd7 N2g4 Nf3 Bf6 Rh7 Bg7 Bb3 Be4 Nd7 b1B Bc2 Bf6 Rb3 Bg7 Rg1 Bf6 Ng5+ Kh2 Rb2 Bg7 Bc7 Bd4 Be5 Nf2 Qf1 Bga2 Bb3 Ng4 Be8 Ne6 Bg6 Rd8 Qe1 Nf8 Qd2 Rc2 Rc1 Rc3 Bd1 Be6 Bb3 Bg8 Qd1 Rc4 Rcc2 Rb4 Rc3 Rb7 Bc2 Rc7 Rc4 Bf5 Qf3 Be4 Qfd3 Nf6 Qc3 Ng4 Rcb4 c4 Rb5 Be3 Rd5 Bd4 Rc5 f3+
n6R/p2r3P/R2Nqp2/p1r2b1R/bn2b3/knQQ1r1K/4QN1p/1B2B3 w - - 0 1 illegal: No possible last move
R1r2b1N/5nQB/K1rN1BR1/R4p2/bk2q1p1/pq1Pp2N/1Q5n/n6r w - - 0 1 legal: proof: g4 e5 f4 exf4 e4 fxe3 c4 h5 a4 hxg4 c5 b5 axb5 d6 Ne2 dxc5 Ng1 c4 Ke2 Kd7 b4 Kd6 h4 g5 h5 a5 b6 c5 b5 f5 h6 c3 Kd3 g3 Kc4 g2 b7 g4 b6 c2 Kb5 c4 d3 c3 h7 a4 Ra2 Nc6 b8R Nb4 b7 Qe7 Nh3 g1N Qe2 Nh6 Bg2 Qe4 Nd2 Nf7 Bb2 c1Q Nc4+ Kd5 Qf2 c2 Bf6 Qa3 Nd6 c1R Qb2 Qb3 Bf3 Ra6 Ra8 Rac6 b8Q Bd7 Qc7 Nc2+ Ka5 Rg8 h8N Kc5 Qb7 Na1 Qc7 Qe8 Bd5 Qe4 Rh2 Nf3 Qb7 Rc7 Ka6 Rh1 Qa7+ Kb4 Rc2 Nd8 Rc6 Nh2 Bf7 Be8 Bg6 Nf7 Bh7 Rc8 Rc5 Rg6 Ra5 Nd8 Qg7 Nf7 Qc1 Bd7 Rc2 a3 Qb2 Bc6 Rcc5 Ba4 Re5 Rh6 Re6 Rh4 Bd8 Rh5 Rg6 Rh6 Bf6 Nf1 Rg5 Bd7 Nb7 Bd6 Be5 Nh2 Bd4 Re6 Rg6 Ba4 Bf6 Be7+ Ka7 Rb6 Nd6 Rbc6 Kb7 Bf8 Ka7 Rcc1 Ka6 R1c6+
4R3/b1P1Rb2/rp2Q2B/Nnp2r2/qrb4q/p1B4Q/2Np3n/1k2B1QK w - - 0 1 illegal: No proof kernel
N1nk4/B1p1p2q/2Rp2Qn/B2bKN2/1Q1n2QR/r1q5/1pP2b2/3r1qN1 w - - 0 1 legal: proof: d4 a5 e4 f5 exf5 g5 b4 axb4 h4 gxh4 a3 Bh6 Bc4 Bf4 Kf1 Bd2 Ba2 b3 d5 bxa2 d6 Bf4 Bd2 Bxd6 Bg5 Bb4 Bc1 Bd2 Ke2 b5 Kd3 h5 Kd4 h3 g4 b4 f4 h2 a4 b3 f6 h4 g5 b2 g6 h3 a5 Ra6 g7 Bb4 f5 Bc5+ Ke5 Rd6 a6 Rh6 a7 Bf2 a8N Bh4 Be3 Bf2 Nc3 Bb7 Ne4 Bd5 Ba7 Qc8 f7+ Kd8 f8B Nc6+ Kf4 Rhe6 f6 Nh6 Ng3 Re3 g8Q Ra3 f7 Qa6 Qe2 Qa5 Nf5 Qc3 Qeg4 Nd4 Re1 a1Q Re6 Qf1 Rg6 Re6 Rf6 Re1 Q8g6 Rd1 Rb6 Nb5 Rc6 Nd6 Bg7 Nc8 Bgd4 Qa5 Bdb6 Qc5 Nf3 Qc3 Rg1 h1N Ba5 Ng3 Rh1 h2 Ng1 Qb3 Ke5 Ne2 Qd4 Qbh3 Qb4 Nd4 Qg4 Qh5 f8Q+ Qe8 Qf7 Qh8+ Qf6 Qh7 Qfg6 Qh3 Ne2 Qc3 Rf1 h1Q Ng1 Qhf3 Re1 Qg2 Re3 Qf1 Rh3 Rb3 Rh2 Ra3 Rh4 d6+
1R1nNb2/Qp1qP3/B2r1q1N/1r1Bp2b/Rb3r2/1n2p1K1/1Q3Rp1/3k2N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 g5 dxe4 g6 c5 Bc4 hxg6 Bd3 g5 Bf1 g4 f4 e5 f5 c4 Ke2 c3 Bb2 Qd6 Ke1 Qe6 fxe6 cxb2 Kf2 Ke7 a4 Kf6 h4 Kf5 c4 Kf4 d4 g5 e7 f5 h5 b3 c5 g3+ Kg2 Ke3 d5 f4 h6 g4 d6 Nc6 d7 Nd8 h7 Ra6 c6 Nf6 c7 Rd6 Nd2 b1R a5 b2 Rh2 f3+ Kh1 f2 Ba6 f1Q Rf2 g2+ Kh2 g3+ Kh3 Rg8 h8R Rg4 Qc1 Rf4 Nc4+ Kd3 Ra2 e3 Ra4 Ne4 Rg8 Nd2 Rh8 Nb3 Rg8 Ne6 d8N Qd1 Nf7 Nd8+ Rg4 Be6 Nh6 Bf7 c8B Bh5 Be6 Qf3 Bf7 Qc6 Bd5 Qd7 Nf3 g1B Kh4 g2 Kg3 Ra1 Rg8 b1Q Qb2 Qf1 Rh8 Rb1 Rg8 Rb6 Nd6+ Rb5 Ne8 Ra1 Rg6 Rd1 Rc6 Rd2 Rc8 Rd1 Rb8 Rd2 Qa1 Kc2 Qd4 Kd1 Qb2 Rb6 Bac4 Rdd4 a6 Rb5 a7 Rd2 a8Q Rd3 Be6 Rd6 Qa7 Bh2+ Kh3 Bg3 Ng1 Rbd5 Ba6 Rb5 Rf3 Be1 Rf2 Bb4 Kg3 Qd3 Bc4 Q3f5 Bd5 Qf6
2bnQN2/kB3B1R/4b3/1pppr3/4R3/n1rpB1KN/1P3q1R/1bQb3r w - - 0 1 legal: proof: c4 g5 d4 e5 h4 gxh4 f4 exd4 f5 Nc6 c5 Nb4 c6 Nc2+ Kd2 Qf6 a4 b5 a5 Bc5 Nf3 Bb6 axb6 Qxc6 f6 Qxf6 Ng1 Qf2 g4 Kd8 g5 f5 b7 c5 b8Q h5 g6 a5 g7 d5 Bg2 h3 Nc3 f4 Qf1 f3 Rb1 h2 Qa7 h4 Nh3 a4 Ng1 h3 Qa6 Kc7 Qe6 Kb8 Qe8 a3 Ne4 a2 Nf6 a1R Nd7+ Ka7 Nf8 Nh6 g8B Ra3 Bf7 Rc3 Kd1 Na3 e4 Rb8 e5 Rb7 e6 Re7 Be3 Rh7 Bh5 Nf7 Rc1 Rh8 Rc2 Nd8 Bf7 Rh5 Rd2 Re5 Qc4 Rd7 e7 Rd6 Qb3 Rh6 Qc2 Rhh5 Qc1 Be6 Ne2 Rh8 Nf4 Rh7 Rf1 h1B Rc2 h2 Bh3 Bg2 Rh1 Bc8 Bd7 Bh3 Bc6 Bhe6 Bb7 Rh6 Nh3 Rh4 Rg1 h1B Rg7 Bg2 Rd2 Bf1 Rc2 Bd3 Rh7 Bg6 Re2 Bb1 Rc2 d3 Re2 Qg3 Rh2 f2 Kd2 f1B Kd1 Qf4 Ke1 Qd4 Kf2 Be2 Kg3 Bd1 Qd7 Rf4 e8R Rf1 Re7 Rh1 Qe8 Bf5 Re6 Bfg4 Rg6 Bge6 Rg4 Qe4 Rf4 Qf5 Re4 Qf2+
8/BbnNr3/N1BB1nR1/p7/q2R1npp/2Q1b1pr/1QKP1nN1/4rk2 w - - 0 1 legal: proof: c4 e5 f4 exf4 h4 Qxh4+ g3 fxg3 a4 d5 Nf3 dxc4 Ng1 b5 axb5 Qh2 e4 Kd7 b4 Ke6 b6 Ke5 b5 Kf4 b7 c5 e5 g5 e6 h5 b6 f5 e7 a5 e8N c3 Bd3 c4 Ra2 c2 Ra1 c3 Bc4 Ra7 Bb2 c1N Ba3 c2 Ne2+ Kf3 Bb5 Kg2 Nc7 f4 Nbc3 f3 Na4 Na6 b8B Nf6 b7 Bh6 Nb6 Qh4 Bc6 Qa4 Bd6 g4 Nd7 Be3 Rb1 Rh7 Rb4 Re7 Rd4 Ra8 Nb5 Nc7 Ba7 h4 b8Q Bb7 Qh8 Rae8 Rf1 Nb3 Qg7 c1N Qc2 Nc5 Kd1 N5d3 Re1 Kf2 Nf4 Ne2 Ng2 Nef4 Re2+ Kf1 Qb3 f2 Kc2 Kg1 Re1+ f1R Rc1 Na8 Nc7 Nf2 Na6 Nc7 Rb1 Re1 Rb2 Kf1 Qh8 Qb4 Qc3 Qa4+ Rb3 Ke2 Qb2 Rh1 Qc3 Kf1 Qb2 Qa2 Rb5 Rh3 Rg5 Re5 Rg6 R8e7 Qg8 Qa4+ Qgb3 Rc5+ Kb1 Rb5 Q3c3 Rb3 Kc2 Ra3+ Qbb3 Ra1 Qb2 Re1 Qc3 Qb5 Qbb2 Qa4+
1k1bn3/r3BN2/q1B1b3/RP1pq3/2R2pQ1/1prpN1n1/3KB3/Q2Nb1b1 w - - 0 1 legal: proof: b4 c5 d4 cxd4 g4 e5 a4 b5 f4 exf4 Qd3 bxa4 Qb3 h5 gxh5 axb3 e4 d5 c4 Kd7 h4 Kc7 h6 f5 h5 g5 c5 a5 e5 a4 c6 a3 e6 g4 h7 g3 h6 g2 e7 a2 e8Q f3 Na3 f4 Be2 f2+ Kd2 f1Q Qe6 Nd7 Nh3 g1B Nc2 Qf6 Ne3 Ra7 Ba3 Ne7 Nf2 Nf5 Nfd1 Ng3 Qg4 Kb8 b5 d3 Bb4 Qe5 Be7 Nf6 Rh2 Rg8 h8N Be6 h7 Ne8 Nf7 Bf2 Rc1 a1B h8Q Bd4 Rc4 Bh6 Qhg7 Bg5 Rh6 Qh3 Rf6 Qh6 c7+ Ka8 c8B Kb8 Bd7 Bg1 Nf1 Bdf2 Qh8 Rg7 Nfe3 Rc7 Rg6 Rc5 Bc6 Rh7 Ra4 Rc3 Ra5 Bf6 Bb4 Bd8 Be7 Qd6 Qd4 Qh5 Qa4 Qhe5 Qa1 Rg7 Ra4 Qa3 Rc4 Qa6 Rf6 Bf5 Rd6 Be6 Rd7 Rh7 Ra7 Qc7 Bf6 Qa4 Nh6 Qe5 Bg5 Rd7 Be7 Qa5 Ra6 Ra7 Nf7 Qb6 Raa4 Qa6 Ra5 Be1+
b1R5/1KpR1bn1/rp2QNkp/5n2/Qp2B3/1qQ2q2/2PNrB2/b1bN4 w - - 0 1 illegal: No possible last move
q1N1Q2B/1p1RKpqb/1R6/4kNB1/n1n1rp2/b4B2/P3q2p/2n1NQ1b w - - 0 1 legal: proof: c4 c5 b4 e5 d4 cxd4 h4 g5 f4 exf4 c5 gxh4 c6 Na6 c7 Rb8 b5 Ra8 b6 Rb8 cxb8B axb6 Nh3 b5 Ng1 b4 Kf2 Ke7 Kf3 Kf6 Kg4 d5+ Kh5 b3 g4 d3 e4 d4 Bh3 d2 Qf1 d1N Nd2 d3 Rb1 b2 Nb3 d2 Nf3 Nc5 Rg1 Nh6 Nbd4 Nd3 Ne1 Nf5 Bg2 h3 Bd6 h2 Bf3 h1B Be7+ Ke5 Kg5 Nfe3 Nf5 Nc3 Rg2 d1Q Rd2 h5 Bf6+ Ke6 e5 h4 Be7 h3 Bf6 Nb4 Rd7 h2 Bd2 Na4 Bc3 Qa5 Bd4 Rh6 Bh8 Nc4 Bc5 Qd5 Be7 Qe4 Bd8 Bd6 Bdf6 Kd5 e6 Nd3 e7 Nc1 e8Q Qa8 Be7 Rh3 Kf6 Rg3 g5 Rh3 Bg2 Re3 g6 Qf3 g7 Re4 g8N Qe2 Ra1 b1Q Bf3 Qb6 Rb1 Qg1 Rb6 Qg4 Bf8 Qg1 Bh6 Qg3 Bg5 Qg4 Kg7 Qgg2 Nge7+ Ke5 Rc7 Be6 Nc8 Ba3 Rd7 Qh3 Ncd6 Qh7+ Kf8+ Qg7+ Ke7 Nc5 Nh4 Bf5 Nc8 Bh7 Nf5 Na4+
nr2n3/Np4qb/1n2QBp1/1Q1N4/p2K1pBq/kPQ1rR2/3q4/B1R3q1 w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 c5 d4 cxd4 g5 Nc6 a5 Nb4 g6 hxg6 Ra3 g5 Ra4 Bc5 Ra1 Bb6 axb6 g4 Nf3 Qxb6 Ng1 Qd8 Kf2 Ke7 e4 Kd6 h4 Kc5 c4 d5 h5 a5 b3 f5 h6 f3 h7 d3 Ke3 d2 e5 d4+ Kf4 f2 e6 d3 Ke3 f4+ Ke4 a4 e7 g3 e8Q g2 Qe1 d1N Be2 f1Q Rh3 d2 Rg3 Nd5 Bg4 Kb4 c5 Nb6 c6 Nb2 c7 Qh4 Ne2 g1Q Nec3 d1Q Rf3 N2c4 Bb2 Qd2 Nb5 Qfg2 Na7 Rb8 Bf6 Na8 Nc3 Ncb6 Rc1 Ka3 Nd5 Bf5+ Ke5 Qgg3 c8Q Be4 Qb5 Bc2 Bg5 Nf6 Qc3 Ne8 Bf6 Rf8 h8B Bh7 Qe4 g6 Qf5 Qh6 Ke4 Qgh4 Qe6 Qg7 Bg5 Rf5 Bf6 Qdg2 Kd3 Rg5 Ke4 Re5+ Kd3 Re3+ Kd4 Qa2 Qca5 Qh3 Kc5 Bg8 Ba1 Qf6 Bg7 Qd2 Qc3 Bh7 Bh8 Qf7 Be5 Qg7 Bf6 Qb2 Kd4 Qh4 Nc7 Qc2 Nd5 Qd2+
4bBq1/5B2/4N2K/2pbR2p/1kNRQbrb/2p1Q1P1/r1p2bB1/Q1bn4 w - - 0 1 illegal: No proof kernel
k6B/BnrQ4/B1b1p1p1/p7/2Q1p2N/N2q1p2/n1P1R1q1/1qbqN1RK w - - 0 1 legal: proof: d4 b5 f4 a5 e4 h5 a4 bxa4 g4 hxg4 f5 e6 d5 c6 f6 cxd5 Kd2 Ra7 Ke2 dxe4 Kf2 d6 Ke1 Re7 fxe7 Kd7 Kf2 Kc6 Kg2 Kb7 e8N f5 b4 f4 h4 g6 b5 a3 h5 a2 b6 d5 h6 g3 h7 f3+ Kh3 g2 Kh2 d4 Qd3 Bd7 Na3 Bh6 Nd6+ Ka8 Ne2 Na6 Nf4 Ne7 Nf5 Nb4 Rg1 Nec6 Qc4 d3 Be3 d2 Nd3 d1Q Nh4 Qb1 Bc5 Bc1 Ne1 Rf8 h8B Rf7 Be2 Be8 Be3 Qd3 Bed4 Rc7 b7+ Kb8 Bc5 Nd8 Be3 Bc6 Bb6 Qb2 Rb1 Qbd4 Rb3 Qd1 Re3 a1Q Bf1 Qd7 Re2 Na2 Bf2 Q7d4 Be3 Ka7 Bf2 Qb1 Be3 Kb6 b8Q+ Nb7 Qd8 Ka7 Qd7 Ka8 Bf2 Qd5 Ba7 Qdb5 Rd2 Qd5 Bd3 Qdb5 Re2 Q5b3 Qb4 Qd5 Ba6 Q5d3 Qc4 Qb5 Rh1 g1Q+ Kh3 Qf1+ Kh2 Qb4 Rg1 Qb1 Kh1 Qg2+
BB2q1rR/p1QP1r1b/qRQ3qN/Qp6/4n3/2bKq1p1/5pp1/1N1k3B w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 Bh3 d5 Bf1 dxc4 a4 hxg4 a5 Nd7 b3 cxb3 Bg2 b5 Bf1 Nb6 axb6 Qd4 Qc2 Qf6 Qd1 Qd8 d4 Kd7 Kd2 Kd6 h4 Kd5 h5 Ke4 b7 c5 b8Q g5 e3 f5 h6 f3 d5 f2 h7 g3 d6 f4 Rh3 c4 Na3 g4 Nf3 b2 Qc7 b1Q Nh2 f3 Qe1 Bf5 Bg2 f1Q Bh1 g2 d7 g3 Ng4 f2 Nh6 Kf3 e4 Bg7 e5 Qe8 e6 Bc2 e7 Nf6 Rh2 Qa2 Nb1 Rf8 h8Q Qa6 Rh5 Qg6 e8B Rf7 Qe6 Be4 Qec6 Qe2+ Kc3 Rd8 Bf4 Rc8 Kd4 c3 Qf8 c2 Qb4 c1Q Qba5 Qee1 Rh3 Ke2 Ra3 Rf8 Bf7 Kd1 Bd5 Rf7 Re3 Bc2 Re6 Rg8 Bd6 Ne4+ Be5 Ba4 Kd3 Bf6 Bd6 Bc3 Q6b7 Qc6 Qcb8 Qa6 Nf5 Ng5 Rh8 Qf6 Nh6 Rh7 Q7c8 Qcf4 Ba8 Rf7 Qbb6 Qc1 Bb8 Qg7 Rf6 Qe8 Qcc7 Bb3 Rc6 Be6 Qe5 Bf5+ Qe4 Bh7 Qc7 Qg6 Rb6 Qf4 Nf5 Qc1 Qec6 Ne4 Nh6 Qe3+
N1rB1rK1/8/bB2pp1k/b1Q1P1pr/Rp5Q/N1R2Q1q/n4p1p/2n4N w - - 0 1 illegal: No proof kernel
5R2/pB2qNr1/2bQnp2/p1pPb3/1Nnr2B1/pR3Q2/3kqp2/K2N1R2 w - - 0 1 illegal: Other
1bb1nq2/rQB3b1/R2rN3/N5rn/R3b2b/1bqkPBQ1/N1q1bQ2/6K1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kd5 c4+ Ke4 h5 b5 a5 f5 e3 d5 h6 g5 c5 f3 c6 f4 c7 d3 a6 b3 a7 b2 h7 d2 Ra4+ d4 Rc4 b4 Rh6 b3 Rh1 Na6 Be2 g3+ Kf1 g2+ Kf2 g4 Rh6 Qf6 Rc5 d3 Qe1 d1B Rg5 d2 Rh3 Qc3 Rgh5 Nf6 Rc5 Nh5 Rf5 Bg7 Rc5 Rg8 Na3 b1Q h8N b2 Rh4 Qbc2 Rc6 b1B Nh3 g1B+ Kf1 f2 Nb5 g3 Ng6 Bh2 Bf3+ Kd3 Ba3 Be2+ Kg2 d1B Ne7 f1R Bd6 Rd8 Be5 Rd6 Ng5 Rh1 Ne6 Rg1+ Kh3 g2 Qf2 Bg3 Rg4 Bh4 Kh2 Rf1 Rb6 g1B+ Kh1 Re1 Nc6 Bh2+ Kg2 Rh1 Na5 Rf1 Qg3 Rg1+ Kf2 Q2d2 Rc6 Bb3 Rb6 Qcc2 Nc3 Qdc1 Rc6 Q1b2 Na2 Qbc3 Bh1 f3 Ra4 Nc5 Rb6 Nd7 Ra6 Ndf6 Bf4 Ne8 Be5 Rb8 a8Q Rb7 Qb8 Ra7 Qb7 Bhf6 Qh4 Rg6 Qg3 Bh4 Bg2 Rg5 Bh1 Bd1+ Kf1 f2 Bf3 Be2+ Kg2 Bg1 Bf4 f1Q+ Kh1 Bd7 c8Q Qf2 Qcc7 Bc8 Qf7 Bh2 Qf8 Rb6 Bc7 Rd6 Bg2 Qf7 Bf3 Qg8 Qf2 Bhe5 Qf4 Qf8 Q4g3 Rd4 Bd8 Bb8 Kg1 Rd6 Bc7 Qc1+ Qf1 Kd2 Bd8 Be4 Bc7 Q1c2 Qf2 Kd3
R2rN1b1/3N2NQ/K2B1r1n/2Q3n1/3P2rB/1qn2brr/3rRbk1/rB3q2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Kd7 Ke2 Kd6 a4 Ke5 h4 b5 h5 g5 d3 f5 a5 c5 h6 f3+ Ke3 f2 a6 c3 h7 c4 a7 c2 Nc3 f4+ Kd2 b3 Qe1 b4 Nh3 g3 Be2 f1R Rh2 b2 Rh1 b1B Ra6 f3 Rh6 g4 Rf6 b3 Ng1 b2 Rb6 Kf4 e5 g2 e6 f2 e7 Kg3 e8Q Bc5 Nd5 Bb7 Kc3 Na6 Ne7 Qd5 Bg5 c1R+ Kd2 Rd8 a8N Nc7 Rh2 Nh6 Qc6 Ba2 Nf3 g1R Ra6 Ne6 Ne5 Ra1 Nd7 b1N+ Kc2 c3 Nc7 Be3 d4 Qb3+ Kd3 c2+ Qcc3 c1R Ne8 Bf3 Ra8 Rc2 Bh4+ Kf4 Qc1 g3 Nf5 g2 Nfg7 Ng5 Qb2 Rfc1 Qa3 f1Q Qc5 Bf2 Qa7 Rf8 h8B Rf6 Qc5 Rh1 Qe7 g1R Rg2 Qe6 Qcc5 Nc3 Qf7 Qh3 Qg6 Bb3 Qh7 Bg8 Rh2 Rg3 Rg2 Ne6 Kc4 Rd2 Bd3 Ng5+ Kb4 Re1 Bb1 Re4 Rh2 Qe6 Rg2 Rhh3 Rh2 Na2+ Ka5 Qb3 Rg2 Bg1 Re2 Bf2 Nh5+ Kg4 Bg7 Ref4 Bf8 Re4 Bd6 Nc3+ Ba2 Bg2 Nhg7 Kf3 Ka6 Reg4 Qa3 Bh1 Bb1 Kg2 Qa5 Kh2 Qa3 Bf3 Qa5 Kg2 Qa3 Na2 Qc5 Nc3+
R1b1k1nb/2n2N1n/q4B1R/b1Q4r/1PB1n1nr/KnQ3N1/3r1N2/4n1qQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 g4 a5 e4 h5 c4 d5 Kc2 h3 e5 h4 b3 f3 Kb2 h2 c5 f2 g5 h3 g6 f4 c6 d3 e6 f3 e7 a3+ Ka2 d2 g7 d4 c7 d3 Bg2 f1Q Bb2 a4 Qc1 d1N Qc6+ Nd7 Qf6 f2 Nf3 d2 Qh4 Ndf6 Bc1 Ne3 Qf4 d1R Qh4 Ra5 Qg5 Qa6 Rf1 h1N Qd5 h2 Rg1 f1N Nc3 Rh4 Qc5 Nc2 Bg5 Nfe3 Ne2 Nf2 Ng3 h1N Nh2 Qd4 Bf3 Ned5 Be2 Rd2 Bc4 Nh7 Ng4 Ne4 Bf6 Nhf2 Rh1 Qe3 Rh2 Qe1 Rh3 Qg1 b4 Ne1+ Kb1 a2+ Kc1 Nc2+ Kb2 a3+ Kb3 Ne1 Rh1 Kd7 e8N Be7 Nd6 Bd8 Nf7 Ke8 Rh2 Nfd3 Rh1 Ne5 Nf2 Ng4 Rh3 Be6 c8Q Nc7 Qb7 Bc8 Qa8 Nd6 Qh1 Ne4 Rd1 a1B Rh2 Bc3 Ra1 a2 Rh3 Ne6 Rh2 Rb5 Rh3 Ba5 Ka3 Rb6 Rh2 Rbd6 Rh3 R6d5 Rh2 Rdh5 Rh3 N8h6 Rh2 Nc7 g8Q+ Kd7 Qgg5 Ng8 Qge3 Ke8 Rh3 Be5 Qc3 Bd4 Bd8 Bg7 Bf6 Bh8 Qb6 Rb5 Bd4 Qa7 Qg2 Rh6 Qh1 Qa8 Qa7 Bb6 Ka4 Rf5 Bf6 Rb5 Rc1 a1N Rc2 Qc6 Ra2 Nb3 Rh5 Qe6 Qa5 Re5 Qc5 Red5 Rf5 Rh3 Rh5 Rh4 Rh6 Rdh5 Ka3 Rd1 Kb2 Qc6 Ra8 Ba5 Ka2 Rd2+ Ka3 Qa6
1rNQ1n1q/n1RRB3/1bQR4/1q2P2N/rq1r4/1n1n4/K1bb2n1/BBk1n3 w - - 0 1 illegal: No possible last move, all moves rejected
nn1NQrR1/2Q1B1Nn/kqq2r1B/Pbn1n2n/3qB3/b1r1Q3/1K1Rb3/8 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 Kc6 a4 Kb6 c4 g5 Kc2 f5 e5 d3+ Kb2 d4 e6 b3 h5 f3 a5+ Ka6 e7 b5 e8Q f2 c5 f4 c6 b4 c7 f3 h6 g3 h7 g2 Qde2 g4 Qa4 g3 Qe1 Qe8 Nc3 Bd7 Rh3 Nf6 Qa3 Bb5 Qa2 d2 Rh4 d1B Rh6 d3 Nce2 d2 Nf4 Qc6 Qe6 Bde2 Rh5 d1N+ Kb1 b2 Rh4 Ne3 Qg4 Ned5 Rh2 Nb6 Ngh3 g1Q Ng5 g2 Qf5 Be7 Qad5 Rc8 h8B Nh7 Ka2 b1N Nd3 b3+ Kb2 Nc3 Qfe4 Bb4 Qe3 Ne4 Ne5 Nc5 Qe6 Rf8 Kb1 b2 Nef7 Ra7 Ra4 Na8 c8Q+ Rb7 Qce8 Rc7 Qc4 Rc8 Kc2 b1N Ba3 Nd2 Ne6 Rc7 Qcc3 Nc4 Bg7 Ne5 Nfd8 Ncd7 Rh4 Be7 Bc1 Qc4 Qd4 Bc5 Qd3 Bb4 Bg5 Qh1 Rg4 g1Q Bg2 f1N Ra1 f2 Kb2 Ng3 B7h6 f1R Rd1 Nh5 Be7 Qb6 Rd2 Qcd4 Rg8 R1f6 Ng7 Rcc6 Qf3 Rc4 Qc6 Nc5 Bf3 Qg2 Qc7 Qh1 Ka2 Qg2 Qe3 Rc3 Bc6 Qgd5+ Kb2 Qd7 Bd5 Qdc6 Be4 Ba3+
n5b1/Q2RBP1K/bbR2QR1/2N1r3/1bb3rN/r1Nnk3/Bn4qq/4b1q1 w - - 0 1 illegal: No possible last move
4BnqB/3q4/3N1Rrn/1n1n1B2/1kn2Q2/1r1q1qq1/1R5P/1rKQbbNR w - - 0 1 illegal: No possible last move, all moves rejected
b3R1B1/r1r1r3/1q3Bb1/1n1N3K/1r5R/k1bQ1r1b/1b1P3B/n2qQNqR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Kc5 h4 b5 a5 g5 h5 f5 e5 f3 Kg3 c3 e6 f4+ Kf2 b3 a6 Kb4 e7 c5 e8R g3+ Ke1 f2+ Ke2 g4 h6 g2 a7 c2 h7 f3+ Ke3 c4 Kf4 c3 Nh3 g1Q Bc4 f1B Qe2 b2 Nf2 g3 Bf7 g2 Qe6 Qb6 Kg5 Na6 Rh3 Nc5 Ne4 f2 Bh5 Nf6 Ng3 Bb7 Ra5 Bg7 Rh4+ Nfe4+ Kg6 Nb3 Rf8 Na1 Rf7 Rhe8 h8B Re7 Bg4 Nd6 Na3 b1B Bb2 c1R+ Qf5 c2 Qd3 Bc3 Rg7 Qh1 Rg8 g1Q Rf8 Bh3 Kh5 f1R Re8 Rf3 Bf6 Kb3 Bf5 b4 Nc4 Nb5 Bh7 Qd1 Ba3 Qhg1 Nf1 Ka2 Bg8 b3 Ra4 b2 Bd6+ Kb3 Rb4+ Ka2 Nce3+ Ka3 Bc7 Be4 Nd5 Bg6+ Kh6 Ba2 Bb8 b1R Bh2 Rb3 Rbe4 Rb4 Re1 Bb3 Nc7 Bbe6 Nd5 Bg2 Kg5 Beh3 Kh6 Rc8 Kg5 Rcc7 a8Q+ Ra7 Qb7 Rcb1 Qc6 c1B Qe6 Rc4 Qe5 Rbb4 Qee4 Bb2 Qee3 Bgf5 Kh5 Rcc7 Qee2 Qc2 Rb1 Qd1 Qe1 Bg6+ Kh6 Ka2 Qee4 Qa4 Nf4+ Ka3 Ne3 Qf2 Rh1 Qg1 Nf1 Qd1 Qe1 Rfe3 Kg5 Ba8+ Kh6 Bh7 Nd5 Rf3 Kh5 Bg6+
n1b1q3/QB1nb1rN/b2R4/QN2B1q1/2b1Kb2/1q2B2N/1qrPR3/1kq2n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 h4 Kd4 a5 b5 e5 g5 h5 f5 e6 c5 e7 f3 e8N b3 a6 b2 a7 c3 h6 g3+ Ke1 c2 h7 c4 Ng7 f4 Qe2 c3 Ra3 g4 Rh4 g2 Kf2 g3+ Ke1 b4 Rh5 b3 Rg5 Nf6 Ne8 Nbd7 Qa6 f2+ Ke2 Rg8 Kf3 Rg7 h8B Nd5 Qe6 N5b6 Rf5 Be7 Ne2+ Kd3 Rf6 g1Q Ra2 g2 Nc7 Qe8 Na3 b1B Qe5 b2 Ra1 Ba2 Rf8 b1Q Nab5 Qb3 Ba3 c1Q Bc5 Kc2 Be3 Qcb2 Ke4 f3 Nd5 Rb8 Qg5 Na8 Re1 Rb6 Qf5 Rc6 Nef4 Rc5 Bc4 f1B Re2 f2 Rf6 Kb1 Rd6 c2 Nf6 c1Q Bd5 Rc6 Nh3 Rc2 Re1 Be2 Nh7 f1N Qe5 Bc4 Re2 Ba6 Bb7 Be6 Bh6 Qc5 Bg5 g1B Be3 Bh2 Qc3 Bf4 Qa5 Rg8 Bhd4 Qg5 Bc3 Rg7 Be5 Nab6 a8Q Bc4 Qa7 Na8 Bc6 Bc8 Nd4 B4a6 Bb7 Qb6 Nb5 Bc4 Nc7 Q6b4 Nb5 Q4b3
Bk2n1n1/1b2b3/RB1RQQb1/1K1nP1br/N2Rq3/1n5q/rNB4n/3b1r2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 Kd3 Kd7 a4 Kc7 e4 f5 h4 g5 c4 b5 e5 b3 a5 g3 a6 g4 c5 g2 h5 b2 c6 g3 h6 f3 a7 f4 h7 b4 Qc2 b3 Ra5 f2 Rh2 f3 Ra3 Qh4 Ra1 Bb7 Ra3 Nd7 Qc4 Ndf6 Ra2 Qh3 Be3 Be7 Ne2 g1B Nf4 g2 Qc3 Ne8 Na3 b1N Nc4 b2 Qc2 Nd2 Qd1 b1B+ Qc2 Nb3 Be2 f1N Bd1 f2 Nb2 Kc8 Rh1 Nh2 c7 f1R Ne2 Bf2 Nc3 g1Q Ra5 Bfh4 Ra6 Qgg2 Nca4 Bhg5 Rg1 Qgf3 Rg4 Qf4 Ke2 Qe4 Qc4 Qeg2+ Bf2 Bg6 Bc2 Qe4+ Be3 Na1 Kd2 d3 Kc3 d2 Qa2 d4+ Kc4 d1B Kb5 d3 Bb6 d2 Qd5 Qee3 Rd4 Nb3 Qf3 Qe4 Qf6 Bg4 Rd6 d1N Rd4 Ne3 Rd6 Bd5 Qe6+ Kb7 c8R Be2+ Rc4 Bd1 Rd4 Bc6+ Kb4 Nd5+ Kc4 Rd8 a8B+ Kb8 Bd3 Bb7 Kb5 Rc8 Bb1 Rc1 Bd3 Ra1 Bc2 Ngf6 Rd3 Ra2 Rd4 Rf8 h8Q Ng8 Qh4 R8f7 Qf2 Rh7 Qff6 Rh5
4r3/1k1bq2N/b2B2q1/q1nPnRRB/1r5b/2K2qq1/b3bQB1/N3R1nQ w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 d4 Kc6 Kd2 h5 e4 f5 g4 b5 d5+ Kb7 e5 c5 a5 b3 e6 f3 e7 c3+ Kd3 h3 e8R b2 g5 f2 g6 b4 g7 b3 Re1 c4+ Kd4 h2 Qf3 f4 Qh3 h4 Nf3 c2 Bd3 f1B Re8 c3 Na3 b1Q Bb2 c1N Re1 c2 Ne5 f3 Qe6 f2 Qe7+ Bd7 Qe8 h3 Nb5 Ne7 g8B Na6 Ra3 Rb8 Be4 Ne2+ Kc4 c1Q+ Bc3 b2 Ng4 Qd2 Nf6 Nc5 Be5 Nc6 Nd4 Qe7 Bg2 Qg6 Bf7 b1B Nb3 Ba2 Rg1 h1Q Bd6 Qh2 Nh7 Qhg3 Qd8 Bg7 Qf8 h2 Be8 h1Q a6+ Kc8 a7 Kb7 Qf3 Bf6 Ra6 Qa5 a8Q+ Kc8 Bf7 Re8 Qa7 Qhh5 Qe4 Qhf3 Qh4 Rb5 Qh1 Bh4 Qb6 Qg7 Bh5 Q7g6 Qd8+ Kb7 Ra8 Qef8 Qf6 Qe7 Qd4 Ne4 Qe3 Rb4+ Kd3 Nc5+ Kd2 Qef6 Na1 Ne5 Rc8 Qe7 Rd8 Nd4 Kc3 Be2 Ra8 f1B Rd8 Rh8 Rf8 Rg8 Rf5 Re8 Bh3 Ba6 Bg2 Bfd3 Qf2 Ne2+ Kd2 Nf4 Kc3 Nh3 Re3 Be2 Re1 Ned3 Ree5 Ng1 Rg5 Bb3 Ref5 Ne5+ Kd2 Ba2 Kc2 Ned3 Kc3 Ne5+
n3q1nb/1b3n1B/5PK1/q1N1bB2/n1r3RQ/B1N1Nk2/1R1rnr2/2Qrr3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 a5 b5 g5 h5 f5 e3+ Kd3 e4+ Ke2 d3+ Ke1 h3 c3 h4 g6 b3 f6 b4 g7 h2 a6 h3 a7 b2 Qg4 b3 Ra6 d2+ Ke2 d1R Qf3 Bb7 Ra2 Rh4 Nd2 b1N Ra3 b2 Qf4 Na6 Qg3 Nc7 Qf2 Qe8 Rb3 Na3 Qf3 b1N Qf2 Nab5 Nc4 Rd2+ Ke1 e2 Qb6 Nd6 Kf2 e1R+ Kg3 e3 Qa6 Ke4 Ba3 e2 Qa4 Nf7 Rb2 d5 Ne3+ d4 c4 Nc3 c5 Rb8 c6 Na8 Qc4 Na4 c7 Rc8 Qb4 Rf4 Bg2+ Rf3+ Kh4 Kf4 Kh5 Rf2 Be4 d3 Kg6 Kg3 Nf3 Kf4 Rf1 h1N Rg1 h2 Ne5 Ng3 Nd7 h1Q Bf5+ Kf3 Nc5 Qh4 Qc4 Qd4 Rg2 Qc3 Qh4 Qa5 Rg1 Rc1 Rg2 e1B Rg1 Ne2 Rg4 Ngh6 g8N Bg7 Ne7 Bh8 N7d5 Rc4 Nc3 Ng8 Ned5 Rd8 c8Q Rd1 Qc7 d2 Ne3 Rb1 Qc8 d1R Qc7 R8d2 Qc8 Rg2 Qc7 Bg3 Qc8 N8b6 a8B Rf2 Qc7 Be5 Qc8 Be4 Bb7 Na8 Ba6 Rcd4 Bd3 Bb7 Bd7 Ng3 Ne2 Qa6 Kh7 Nd8 Ne4 Qa5 Qc2 Rb4 N2c3 Re1 Nc5 Rbd1 Qc1 Ne2 Bg6 Ne7 Bdf5 Rc4 Kh6 Nf7+ Kh5 Rd7 Bh7 Ng8 Kg6 R7d2
B2Kb2q/NQnb1q2/n2P4/1n4rR/8/nB2n1BN/Qq2k2r/bQ1Rb2b w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 f5 a4 h5 e4 b5 g4 h3 g5 h4 g6 c3 d3 c2 a5 f3 g7 f4 a6 h2 a7 f2 Qe2 b3 Ra2 b2 Nd2 b1N Qd1 f3 Qe1 b4 Bh3 f1Q Qe2 b3 Qe1 f2 Bd7 b2 Ke6 Kd4 e5 c5 Nc4 h3 Bh6 c1B Qb4 Na6 Qb3 Ne7 g8Q Nc3 Ra3 b1N Qg6 Ned5 Qf7 Bd2 Bg7 Be1 Ra2 Na3 Qb7 Ncb5 Nd6 Ke3 d4 c4 Ra1 c3 Rd1 c2 Bf6 c1Q Bh4 Bh6 Bg3 Qb2 Qg6 Rh7 Qb1 Bg7 Qa2 Rb8 a8B Ndc7+ Kf7 Rh8 Be6 Bd7 d5 Rh7 Qb1 Qh8 Ke7 Rg8 Nc8 Qc4 d6 f1N Na7 Rh5 Nf3 Ke2 Ng5 Ne3 Qa2 Be8 Kd8 Qf4 Bb3 Qf7 e6 Rh7 Rf1 h1B e7 h2 Nh3 Bhc6 Rf5 h1B Rh5 Bd4 Qb1 Rg5 Qa2 Bed7+ e8Q Be5 Qg8 Be8 Qg6 Bcd7 Be6 Qc2 Qf5 Ba1 Bb3 Qcb2 Qfb1 Rh6 Qb8 Rf6 Qb6 Rf2 Qb7 Rh2
4n3/1BB1q3/3RqQ2/2N4n/3rqb1b/1B2r1rb/nP1qRKqN/k1r1RQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 e4 Ke7 h4 Kd6 c4 Kc5 h5 Kb4 c5 f5 c6 g5 e5 d5 c7 a5 h6 f3 e6 d3 h7 f4 e7 g3 e8Q f2+ Kd2 g4 Rh2 f3 Ke3 g2 Qe4+ d4+ Kf4 a3 Kg3 a4 Be3 d2 Rh5 a2 Rd5 a3 Qg6 d3 Qf7 Bd6+ Bf4 Nf6 Qc2 d1R Rc5 d2 Qf8 Rg8 h8R Nc6 Rh3 Qe7 Rh4 Ne8 Be2 f1N+ Kf2 Ng3 Qd3 Nh5 Qe4+ Kb3 Ba6 g3+ Ke3 f2 Re5 f1R Qf6 Nb4 Nh3 g1Q+ Ke2 g2 Ng5 Qh1 Qg7 g1B Rd5 Bh3 c8B Bf2 Rg4 Bh4 Be3 Bf4 Qf5 Qhe4 Rd6 Rf3 Rg1 Rc1 Bcb7 Rd8 Ne6 Kc2 Qgf7 Rgg3 Q7f6 Kb3 Rg2 Rd7 Rb6 Rd4 Nc5+ Kc2 Bc4 Qe6 Nc3 Qe7 Rb1 a1Q Nd5 Qa2 Rd6 Qb3 Rh2 a2 Rg2 a1Q Rh2 Rcf1 Re1 Na2 Rg2 Qb6 Rf2 Qc1 Bb3+ Kb1 Rg2 Ka1 Rf2 Rg7 Rg2 Rfg3 Rh2 Rfg1 Kf2 d1Q Bd2 Qa6 Ba5 Rg8 Ne3 Qdd2+ Re2 Qcb1 Rh1 Rc1 Re1 R8g4 Nf1 Re3+ Ng3 Qc4 Bc7 Qh1 Qd3 Qce6 Qb5 Qbe4 Qa6 Bhg5 Nf1 Rgg3 Nh2 Bh4 Qc6 Q4f5 Qg2 Qfe4 Qf1 Qhg2+
n1N1n1r1/3KnR1q/2rbQ1bN/Nq3B2/5bnB/r4q2/P1Rb1b1Q/B4k2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 f4 Kf5 c4 e5 h5 d5 c5 g5 c6 b5 h6 g3 h7 Kg4 f5 e3 Kd3+ e2 c7 e4+ Kd2 g2 f6 Kg3 f7 Kf2 Nc3 e1R Bb2 e3+ Kd3 b3 Ba3 g4 Qd2+ e2 Rh3 b2 Nb1 b4 Qg5 g3 Rh5 b3 Qg4 Qe8 Rh4 Nf6 Qg6 Bf5+ Re4 Na6 c8N Rc1 Ne7 e1B Bb4 Nc7 Nc8 Rc6 Na3 b1Q+ Nc2 b2 Nd6 Ra3+ Bc3 Rg8 h8B Bd2 Be2 Na8 Qh6 Bg6 Bg4 Kf1 Nc8 Bd6 Nh3 g1B f8Q g2 Ng5 Bf2 Bf5 g1B Re7 Bgh2 Rf7 Bhf4 Qh2 Qd7 Qd8 Ne8 Qb6 Qb7 Qb3 Qb5+ Qc4 Qd1 Bf6 b1Q Bd8 Qh5 Bf6 Qbd1 Nb4 Qh4 Rb1 Qh7 Rb3 Qg4 Ba1 Qgh5 Rc3 Qf3+ Kc2+ d3+ Kb2 d4 Qe6 Bde1 Rc2 d2 Bd8 d3 Be7 Ra4 Kb3 d1N Bd8 Ne3 Be7 d2 Bd8 Rc7 Be7 Qa5 Nc6 d1N Bef6 Qa6 Na5 Nc3 Be7 Rc5 Bf6 Ra3+ Kb4 Bd2 Be7 Bde5 Bd8 Rc6 Be7 Rb6+ Kc5 Ncd5 Bf6 Rb1 Bd8 Rc1 Bf6 Qae2 Kc6 Bd6 Kd7 Qb5+ Rc6 Bg1 Re7 Qb2 Nf7 Ng4 Bh4 Qb5 Nh6 Bf2 Rg7 Ne7 Rf7 Qbd5 Rc2 Qdb3 Rb2 Rc6 Rc2 Qb5
q1Rqb2b/k2q3r/r5B1/b1NRnqB1/QQnq2QK/Nb2P3/2nrN3/8 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 c4 d5 h4 Kd7 a4 Kc6 h5 Kb6 h6 g5 a5+ Ka7 c5 b5 c6 g3+ Kg2 g4 a6 d3 c7 b3 h7 b2 Rh6 d2 Ra5 b4 Rf6 f3+ Kh1 d4 Qa4 d1R Rb6 f4 Rc5 f2 Kg2 f3+ Kh1 b3 Rc4 d3 Qb4 d2 Re6 g2+ Kh2 g3+ Kh3 Ne7 Rc2 Ng6 Rc5 Bg7 Qf4 Nc6 Re5 Nb4 Qc4 Bd7 c8Q Nc2 Qa4 Be8 Rg5 Ne5 Na3 b1Q Rh6 b2 Qac4 Qa2 Rgh5 b1Q Q4c6 Qb5 Qc4 Qbd7+ Qg4 Qad5 Qc3 Q5a5 Rf6 Qad5 Kh4 Qd4 Nh3 g1B Qb4 g2 Ng5 Bh2 Rd6 g1Q Rc6 Qh1 Rc8 Bf6 Bh3 f1Q Bg2 f2 Be4 Qhg2 Bg6 Qgc6 e3 Qfd3 Bb2 f1N Ba1 Q3f5 Bc3 Rg8 h8N Rg7 Bb2 Re7 Ba1 Bg7 Ne4 Qcb7 Nc5 Bf6+ Rg5 Rh7+ Bh5 Qg2 Ng6 Bh8 Nf4 Qgb7 Ne2 Bg3+ Kh3 Be1 Bc3 Nh2 Bb2 Nc4 Bc3 Nf3 Bb2 Q4d5 Bf6 Qd4 Be7 Nfe5 Bf6 Rg7 Bg6 Rh7+ Rh5 Rb8 Bh4 Qa8 Bg5 Ra1 Bh4 d1B Bg5 Bc3 Kg3 Rb6 Kh4 Rd6 Qa4 Kb6 a7 Ba5 Qb3+ Nb4 Qb1 Bb3 Qbe4 Nc2 Qef4 Qg2 a8Q Ra2 Qc6+ Ka7 Qa4 Qa8 Qe4 Ra6 Qb4 Qdf6 Qc6 Qfe7 Qca4 Qed8 Nb1 Nf3+ Kh3 Nce1 Na3 Qfd3 Bh6 Rd2 Rd5 Nc2 Kg3 Nfe5 Bg5 Rg7 Kh3 Q3f5 Kh4 Rh7+
1n3nK1/1k2NN1b/5rbR/q2rr1R1/1B1N2Q1/2bnPQq1/1qBn4/1n1B1q2 w - - 0 1 illegal: No possible last move
2n3R1/1N1rn3/8/NQ1n1q1n/BbKQbn1B/PN1Q1qrr/3Rb3/2qq3k w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 Kd3 Kf6 c4 Kf5 e3 d5 c5 b5 c6 h5 g3 b3 c7 b2 a3 h3 Nc3 b1Q+ Qc2 Kg4 e4 f5 e5 h4 e6 b4 e7 h2 e8Q f3 Nb5 h3 Qe3 b3 Qe2 b2 Qe8 f4 Qe5 f2 Na7 f3 Qg7+ Qg5 Be2 f1N Bd1 Ne3 Qh7 Qf5+ Kd2 d3 Kc3 d4+ Kb3 d2 Ra2 d3 Nb5 Nc6 Qd7 Bb4 Na7 Nd5 Qe6 Nf4 Ne2 f2 Qe7 Kf3 g4 Kg2 g5 f1B g6 Bb7 Qd8 Nce7 c8N Be4 Nb6 Nc8 g7 Nge7 Nd4 Be2 Nac6 Rh7 Rf1 h1Q Nd7 h2 Na5 Rh3 Nc5 Ra6 g8Q+ Rg6 Qh8 Rgg3 Qe5 Qa1 Ncb7 b1N Qb8 Nc3 Kc4 Ncd5 Ndb3 Qb1 Bb2 Qc1 Rf3 Qf1 Bf6 h1N Bh4 Kg1 Re3 Qf3 Qh8 Kg2 Qd4 Kh2 Qcc3 Kg1 Bc2 d1R Rb2 d2+ Qcd3 Nf2 Qbe5 Ng4 Ra2 Kh1 Rb2 Ndf6 Qb5 N6h5 Ra2 Ngf6 Rb2 Bc6 Re6 N6d5 Rg6 Rdg1 Rg5 d1Q Rg8 Rg7 Ra2 R1g3 Nd2 Nc3 Ba4 Be4 Ndb3 Ncd5+ Rc2 Neg6 Bd8 Rd7 Bh4 Qb1 Rb2 Nge7 Rd2 Qbc1+
1Q6/b1N1B1PR/2Q3Nr/1bK3n1/1n3r2/bq1qQb2/B2rR1n1/Bbk1qr2 w - - 0 1 illegal: No possible last move
b3q3/1RqP2qN/QQr1B1Nq/3rqbb1/2n2Q2/3r1r1k/5nn1/2BR2KB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 e4 Ke6 d4 h5 g4 b5 a4 f5 a5 c5 a6 c3 e5 c4 g5 f3 g6 c2 g7 h3 a7 b3 Bf4 c1R Qd3 h4 Qe2 c3 Qc2 b4 Na3 h2 Nh3 b2 Nb5 b1Q Bd2 b3 Qd3 c2 Be1 b2 Ra3 f4 Qd2 Kf5 d5 Kg4 d6 Qa1 e6 b1Q e7 Nf6 e8Q Nc6 g8B Bf5 d7 Ne5 Qf7 Nc4 Qb4 Rh5 Qfe7 Bh6 Qf7 Qe5 Rc3 Qde8 Ng5 h3 Qg7 Qa1 Bd3 Ne4+ Kf1 f2 Ne6+ Bg5 Rb3 Qac3 Ke2 f1R Bd2 Rf3 Qf6 Nf2+ Be4 Qb2 Rd1 h1Q Qd6 h2 Na3 Kh3 Rb7 Rc8 a8Q Rc6 Qab8 Rb1 Qh6 c1Q Nf8 Qbc3 Qd8 Rb3 Nh7 Q3a1 Qhf6 Rbd3 Be6 Qcc3 Qdf8 Qc7 Qg6 Qg7 Bc1 Qae5 Qff6 Qg1 Qa8 h1B Qa6 Qh2 Kf1 Rg3 Nc2 Rh4 Qa8 Rb6 Rd2 f3 Qa7 Kg4 Bc6 Nh3 Rd1 f2 Bg8 Bfe4 Ne1 Ra6 Qe3 Bf5 Qe6 Ra5 Ng2 Rh6 Rb6 Rb5 Nf4 Rc5 Bb5 Ba8 Bc6 Ra5 Bg2 Rad5 Rb7 Rf3 Qa6 Kg3 Qgb6 Rc6 Bh1 Kh4 Ke2 f1N+ Ke1 Nf2 Be6 Kg3 Ng6 Qhh6 Qe4 Nfe3 Qf4+ Kh3 Ke2 Neg4+ Kf1 Nge3+ Kg1 Ng2
1Nb2rr1/4bn1R/1b2Rn1b/n1r4b/1K1QPb2/2QB4/NB1qb1k1/N1Bn4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 e4 Kf6 d4 Kg5 Kd2 Kh4 d5 c5 h3 Kg3 h4 b5 h5 g5 d6 f5 a5 f3 a6 b3 Kc3 b4+ Kb2 f4 d7 f2 a7 f3 h6 Be7 h7 Nc6 Rh2 Nf6 Qc2 Rg8 h8N Na5 Be3 c3+ Kc1 c4 Qb2 c2 Kd2 c1B+ Kd1 c3 Bc5 Bf4 Bg2 f1B Rh5 c2+ Ke1 c1B Rh6 Be2 Qa3 b2 Bd4 b3 Nc3 b1N Bf1 b2 Na2 Nc3 Ng6 b1R Ne5 Nd1 Rh7 Rb5 Bb2 Rc5 Qc3 Rb8 a8Q Rf8 Rg7 Kh2 Qa6 g3 Qd6 g4 Qdd4 g2 Nc6 g3 Rh7+ Bh6 Rb1 Bf4 Bc1 Ra8 Nb8 Kh1 Rb6 Rg8 Qde3 f2+ Kd2 Bh5 Nf3 g1N Re6 g2 Bd3 f1B Ne1 Bfe2 Nc2 Nh3 Na1 g1B Kc2 Rf8 Qd4 Ng5 Bb2 Nf7 Bc1 Qe8 d8B Qd7 Bc7 Kg2 Be5 Nb7 Kb3 Na5+ Ka3 Bf2 Qdc4 Qd4 Kb4 Qe3 Q4d4 Qd2 Qd7 Rc6+ Qd6 Bb6 Qc5 Rc7 Qd6 Rc5 Qd4 Rg8 Qg1+ Kh3 Nc6 Qc2 Qd2 Bb7 Beb2 Raf8 Qc3 Bc8 Qgd4 Qd2 Nb8 Kg2
r1b1r3/2q4R/1k3Kb1/1q3qQ1/1qn1Qq1B/2P5/2r1NqnB/NBN1r1bR w - - 0 1 illegal: No possible last move, all moves rejected
bNQQ4/1Br3r1/nq1R2N1/1q1PK3/qb5q/rR1Nnn2/r1R4B/k1rr4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 d4 b5 g4 h5 a4 f5+ Kf3 Kd5 a5 c3 g5 Kc4 g6 c2 e4+ Kb3 a6 h3 d5 h2 a7 c4 g7 c3 e5 h4 e6 h3 e7 Bb7 e8N Na6 Bd3 Rh7 Nf6 Ne7 g8Q Qa5 Ne8 Qa4 Bb2 Nc6 Qg7 Nd4+ Kf2 f3 Kg3 f4+ Kg4 f2 Be2 f1R Bc1 f3 Kf4 f2 Ke4 Nf3 Qg6 Rg7 Qd4 Rd1 Qgf6 f1N Ra2 Ne3 Nc7 Be7 Ba3 c1R Qc5 c2 Nc3 Ra1 Qh4 c1R Rc2 Ra2 Qg5 Rc8 a8R Bc6 Rb8 Ba8 Bb2 Ra3 Na2 Ra1 Ne8 Rc7 Be5 Rac1 Nf6 Rd2 Rc3+ Kb2 Nd7 b3+ Nb4 Ka1 Rc2+ b2 Bg3 Bf8 Qd8 b1Q Rb7 Qb2 Nb8 Qf6 Bc4 Qb6 Nd3 b4 Ne2 b3 Nef4 b2 Ng6 b1Q Rg1 h1Q Bh2 Be7 Rg3 Q6b5 Rb6 Bd6 Qc6 Bb4 Qe6 Qbb3 Rd6 Qb6 Qeg8 Qab5 Qc8 Q3a4 Qgd8 Rcd1 Rc3 Rda2 Rc2 Nd4+ Rf3 Qe1 Ke5 Qh4 Bg1 h2 Rh3 h1R Bh2 Q5c5 Bb5 Rc1 Bc6 Rhd1 Bb7 Qcb5 Nb2 Ng2 Rb3 Ne3 Nd3 Nf3+
q2r2b1/R3r1q1/qbRQ1qQP/3qN3/1Bq1Bk2/1nQ5/1b5N/1nnKn1B1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 Kg6 h4 Kf5 c4 d5 h5 g5 h6 e5 a5 b5 c5 b3 a6 d3 c6 d4 c7 g3 a7 d2+ Ke2 g4 Ra6 e3 Ra5 b4 Rh4 g2 Ba3 g3 Ra4 d3+ Kf3 e2 Rh2 e1N+ Ke3 b2 Qb3 d1Q Rh4 d2 Ra5 Ne7 Rg4 Nec6 Rh4 Nd4 Qg8 b3 Bc4 Nd7 Rh2 Qg4 Be2 d1Q Rd5 Qf6 Rh3 Nc5 Rd8 e4 Bb5 Rh7 Rh4 Ncd3 Bc5 Be6 c8Q Nc1 Rd7 Re7 Na3 b1N Nf3 b2 Bc6 Ndb3 Nh2 Qd5 Nc4 Bg7 Ne5 Bf7 Qcf8 Rd8 a8Q Be6 Qh8 Bg8 Qa6 Qg6 Ra7 Qgf7 Qf1 g1Q+ Qf2 Qf1 Qc2 g2 Qh7+ Q7g6 Qc3 Qa6 Ba8 Bh8 Qhf7 Qg7 Qg6+ Ke6 Bb6 Kd6 f5 g1B+ Kf4 e3 Rh5 Qde6 Be4 e2 Bf2 Qd5 Ke3 N1d2 Rh3 b1Q Rh4 Qb2 Rh3 Qfe6 f6 Nb1 f7 Qba3 Rf3 Qb4 Rf6 Qbc4 Qe8 Qa8 Qg3 Qad5 Rg6 Qef6 f8B Ned3 Qf4 e1Q+ Kf3 Qf1 Ke3 Qg2 Qg3 Na2 Ke2 Nac1+ Kd1 Ne1+ Qgd3 Ke6 Bc5 Bf2 Bb4 Bb6 Bc5 Qb2 Bg1 Qba3 Qc6+ Qad6 Qc5 Q6c6 Q5d4 Qa8 Qg3 Rc7 Bb4 Re7 Nd3 Qh5+ Bf3 Kf5 Rd7 Qfg5 Qa1 Qcc8 Ra7 Qcc4 Rc6 Qgf7 Qdd6 Bhd4 Qb2 Qff6 Qc2 Bb2 Qc3 Qhf7 Ne5 Qgg7 Qg6+ Kf4 Be4 Qfd5+
n2q3q/1rqk1N2/P1b1q3/Nr2B1qB/4rQ1R/n1K2NQb/R3bb2/1R5q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 f5 e4 d5 a4 b5 c4 h5 g4 f3 a5 d3 g5 d4 a6 f2 c5 b3 e5 b2 e6 f4 c6 h3 e7 f3 g6 h2 c7 b4 g7 h4 Ra3 b3 Ra1 h3 Na3 b1Q Bg2 f1B Nc4 f2 Qe2 b2 Bc6+ Nd7 Ne3 Bg2 Ra5 f1B Nd5 Rh5 Qg4 Qc2+ Ke1 b1R Nc3 d2+ Kf2 d1Q+ Qe2 d3 Ke3 d2 Kd4 Rhb5 Qe3 Be2 Ba3 Nh6 g8N Qe1 Qg5 d1Q+ Qd2 Ng4 Nf3 Qdc1 Nd5 Ne5 Bb2 Nc4 Ra2 Na3 Nb6 Bh6 Rf1 h1Q Qf4 h2 Nc4 Bb7 c8R Bh3 Qg3 Qg5 Na5 Ra7 Bd5 Nb6 Rc4 Kd7 Bf7 Bc6 Bh5 Na8 Qf4 Bf8 Nh6 Rab7 Nf7 Re5 Bc3 R1b5 Rg1 Re3 Rb4 Qcc1 Rb1 Ree5 Rg4 Qc2 Rh4 Qh7 Bd2 Re4+ Kc3 Qh8+ Qf6 Qeg3 Bf4 Qf1 Qg7 h1Q Be5 Qfg1 Qf6 Qgb6 Qf4 Q3g4 Qg3 Qbc7 Qf4 Qe6 e8Q+ Kc8 Qg3 Bc5 Qf8 Kd7 Qh6 Bf2 Qf6 Qde7 Qff4 Qed8
1bRK4/Q1r4B/3NN2P/1r1RBn2/b1Nbb3/bnb3bR/6Qq/1k1bbr2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 b5 d4 b3 a4 b2 f4 b4 h4 c3 a5 e3 a6 c2 a7 b3 d5 e2 d6 e1B d7 c4 Ke6 g3 Bg2 c3 Qf3 Nc6 Rh3 Qc7 Ne2 Rh5 Rh2 Na5 Nd2 b1B Bb2 c1R Qd5 c2 Qc5 Nh6 Qe5 Nf5 Bd4 b2 Nf1 Bc3 Qb5 Nb3 Bb7 g2 Bc5 g1B Nd2 Rf1 Ba3 c1B Ba6 Bgd4 Qc5 Be4 Qc4 b1B Ra2 Bbc2 Rh1 Bd1 Bd6 Ba3 Rh3 Bcb7 d8N Bbc6 Qb5 Rc8 Qb6 Ba4 a8Q Bf2 Nc4 Bg3 Rb2 Qb8 Bb5 Rc7 Be5 Bg2 Be8+ Kh6 Bf6 Qa7 Qd5 Nd6 Qe4 g6 Qed4 Rd7 f5 Bd2 Qc7 Ba8 Qd5 Qf2 Qb8 Qh2 Qg2 Rb7 Kd5 e5 Ke6 e4 Nf4 e3 Nd5 e2 Qc8 e1B Nc7 Bc3 Qb8 Rb5 Kd7 Be4 Rf2 Bg7 Bd4 B7e5 f6 Bef4 f7 Rhc5 f8R Nf5 h5 Kg5 h6 Bd6 Rb2 Kf4 Qa7 Rc6 Na8 Bb8 Nd6 Rcc5 Bf6 Ke3 Be5 Kd3 Ne6 Rc8 Nb6 Rc7+ Kd8 Nd2 Rb4 Kc2 Rd4 Kb1 Nbc4 Nb3 Rd5 g5 Bg6 g4 Ke8 Bf4 Qgf2 g3 Bh7 g2 Qd2 g1B Qg2 Bgd4 Rg8 Rcc5 Kd7 Bfg3 Rc8 Rc6 Kd8 Rc7
3QrN1r/q1BNq3/Qr3N1r/2n2Bq1/2bbbR1n/Kbk3q1/PR6/R3b3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 c4 Ke6 Kc2 Ke5 Kb2 f5 e4 b5 h4 g5 h5 d5 h6 f3 c5 b3 h7 f4 c6 f2 c7 g3 Qg4 f3 Bc4 f1B Nh3 f2 Bd3 b4 Nd2 g2 Be2 g1B Qf3 d3 Rh2 Kd4 e5 g4 e6 g3 e7 g2 e8N Ne7 Ng5 Nd7 Rh6 Rg8 h8R Bb7 c8Q Ng6 Nde4 d2 Qh3 d1Q Qb8 Qd2+ Kb1 b2 Nf7 Q2g5 R8h7 Rh8 Kc2 b1R Qhg3 b3+ Kd1 b2 Kc2 Bb4 Kb3 Qde7 Rh4 Be1 Qbd6 Bc6 Nc7 Rae8 Bd1 Be2 Nd8 f1Q Bc2 Qff4 Qh2 Qfg3+ Bd3 Be3 R7h5 g1Q Ka3 Bf1 Nc5+ Kc3 Rg4 d4 Bf5 d3 Nde6 d2 Qe2 d1B Qa6 Be4 Rh2 Bc4 Nf8 Ba4 Rd2 Bac2 Nd3 Ba7 Ne5 Qb6 Rh4 Qb7 Rf2 Bd4 Rg4 Ba4 Bf4 Nc5 Qd8 Qa7 Rh4 Bd2 Rfh2 Rh1 Ned7 b1R Re2 Rb6 Nd5+ Kd3 Bd6 Bb3 Rf4 Be1 Rb2 R1h6 N5f6 Kc3 Bc7 Nh4
KRb1qB1b/bB6/Nr4N1/2RnQQ1r/1Rbrqb2/N5r1/Pq4q1/k4n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Ke5 h4 g5 c5 d5 h5 f5 c6 b5 h6 g3+ Kf3 g4+ Kg2 d3 c7 Kd4 e5 b3 h7 b2 e6 d2 e7 b4 e8N b3 Qc2 d1Q Rh5 f3+ Kh1 f2 Kg2 f4 Bd2 f3+ Kh1 g2+ Kh2 Na6 Kg3 Nb4 Kf4 g3 Be1 Qe2 Rf5 Bd6+ Re5 Nh6 Nc3 b1Q Qb2 Ra3 Ng7 Qe8 Qc1 b2 Qc2 Nf5 Qa4 Qee4+ Kg5 Ne3 Ba6 f1Q Kf6 f2 Nh3 g1B Nf4 Qfg2 Qa5 f1B Ng6 Bc4 Bb7 Nf1 Nb5+ Kd3 Ne6 Kc2 Nc5 d4 Rh5 d3 Na6 d2 Rc5 d1R Bd2 Rb3 Bh6 Bf4 Bf8 Rd4 Na3+ Kc3 Qb5 Qbc2 Qd7 b1R Qf5 R1b2 Rb1 Nd5+ Kg7 Rb6 Qe5 R2b5 Rb4 Qb3 Qf5 Kb2 Qe5 Ka1 Qf5 Q8e5+ Kf7 Rg8 h8Q Qbb2 Qhf6 Ra5 Q6e6 Bge3 Ke8 Bd2 Kd8 Bc3 Nh8 Rg5 Ng6 Rab5 Ra4 Rb3 Rb4 Rh5 Qd6 Qh2 Qde6 g2 Qe7 g1B Qeg5 Be6 c8R Qhg2 Rb8 Bc8 Qe7 Nde3+ Qd6 Qe8+ Kc7 Bf2 Qde5 Bg1 Ra8 Nd5+ Kb8 Rd3 Qc7 Bh8 Qce5 Rd4 Ka7 Rg3 Rb8 Bf2 Ka8 Rdd3 Ra4 Rf6 Rca5 Ba7 Rc5 Rd4 Rb4 Rb6
2Q3n1/3q1q2/1b1Rb1Qn/1N2Q1RK/2nBBRqb/1kPr1n1N/q6r/4bb2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Kc5 h4 f5 e5 g5 e6 d5 a5 b5 h5 f3 Kg3 f2 e7 d3 e8R Kc4 h6 f4+ Kh2 b3 a6 f3 Kg3 b4 c3 b2 h7 b3 a7 d4 Rh6 Nd7 Bh3 f1B Raa6 f2 Qe1 d2 Re3 d1Q Re5 d3 Re8 d2 Qe5 Ndf6 Bg2 Be6 Ne2 Qd7 Rd6 Be7 Bh3 Rd8 Rh4 Nh6 a8Q Nfg8 Bg2 Qc2 Qf3 d1Q Qfe3 Qf5 Bf3 Qf7 Nf4 Qe2 Kh2 g3+ Kh1 g2+ Kh2 g1B+ Kg3 g4 Nd3 Bf6 Kf4 g3 Rf8 g2 Rh3 Bh4+ Qf5 Bh2+ Rg3 g1B Be4 Qeh5 Qe2 Qhg6 Ke3 Qg4 Rg2 B2g3 Qg6 Kb5 Qe1 Ka4 Na3 b1N Nf4 b2 Nb5 Nd2 Nh3 b1Q Ba3 Qb3 Bc5 Qa2 Bd4 Kb3 Qe2 Nf3 Qc4+ Kb2 Qc5 Kb3 Qe5 Qfe7 Rf4 Qf7 Nc7 Ba6 Nb5 f1N+ Kd3 N1d2 Ke2 Be1 Rg3 Qgf5 Rg5 Bgf2 Qc5 Qg4 Qc8 Ne7 Bg7 Bb6 Bd4 Rhe8 h8Q Neg8 Ke3 Re7 Na3 Bf1 Qe5 Qf6 Nb5 Rh7 Rff5 Qff7 Rf6 Qg2 Kf4 Nc4 Rff5 Qge2 Rf6 Nf5 Kg4 Nfh6+ Kh5 Qg2 Ng1 Qc6 Be3 Bhg3 Rd2 Nf5+ Kg4 Rh2 Nh3 Bh4+ Kh5 Nfh6 Rf4 Rd5 Rd1 Qcd7 Bf2 Rc5 Rd6 Rd5 Be3 Rd3 Bd4 Qg4+
1Rnr4/Qnn1Rn2/1q3bn1/2q1r2Q/4P1NB/2k4B/q1N2b1K/R1Nbb2q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 a4 Ke5 h4 d5 c4 b5 e4 g5 a5 f5 c5 f3+ Kg3 f4+ Kh2 f2 h5 f3 c6 d3 h6 Kd4 a6 d2 a7 b3 h7 b2 c7 b4 Bd3 f1Q Bc4 b3 Ra2 f2 Ra3 Qe7 Bb5 Bg7 Be8 Na6 Bg6 Qc5 Ra1 Ne7 Ra2 Bf6 Na3 b1Q Nc2+ Kc3 Ne1 b2 Qa4 d1N Bf4 d4 Nef3 d3 Nd4 d2 Ndf3 Ne3 Qd1 N3f5 Bh5 Ng6 Nh4 Nd6 Ngf3 Re8 h8Q Nb7 Nd4 Re5 Qa4 d1N Qae8 Ne3 Ng2 Nf5 Nc6 g3+ Kh3 Nfd6+ Bg4 Nf7 Ra1 Qa2 Qh5 b1Q Qe7 Qbb6 Na5 Rb8 Rh2 Qh1 a8R f1N Nb3 Nd2 Ne1 g2 Nc2 g1B Bg3 Nc4 Nc1 Bf2 Bh4 Ncd6 Be6 Bd7 c8N Be1 Na7 Rd8 Nc6 Nc8 Rb8 Nc7 Bg4 Be6 Qd7 Bb3 Bf5 Ree8 Ne5 Ba4 Ng4 Re5 Nce3 Bd1 Nc2 Qhg1 Rg2 Qf1 Kh2 Qf3 Nh6 g4 Qa4 Qf1 Qa7 Qf3 Rd2 Qf1 Rd6 Qf3 Re6 g3+ Kh3 g2+ Kh2 Qf1 Re7 Qf3 Bd7 Qf1 Bh3 g1B+ Kh1 Bd4+ Kh2 Bdf2 Ng4 Qh1+
6kq/br1b1N2/2q1nq1Q/BQ1R2nK/r2PrQ1b/1r2Nq2/1r5R/2bB2R1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 f5 d4 Kf7 a4 b5 g4 c5 e4 h3 e5 b3 a5 b2 g5 c3 a6 c4 a7 h4 Qe1 h2 Be2 b4 Nh3 b3 Ra5 c2 Bd1 c3 Ra6 Nc6 Nd2 b1R Nf2 h3 Nfe4 b2 Ra1 Rh7 Ra2 Nf6 e6+ Kg8 g6 Rb7 g7 Bd7 e7 Nh7 e8R Qf6 Be2 Ng5+ Kf2 f3 Kg3 f4+ Kh4 f2 Ra1 f1R Bf3 Nd8 Bg2 f3 Qg3 f2 Qe3 Nde6 Kh5 Re1 Nd6 f1Q Qf4 Re4 Bf3 Qg2 Bg4 Qf3 Nf7 Rb3 Rg1 h1Q Nc4 h2 Bd2 c1B Rd8 c2 Ba5 Bd2 Rg2 c1B Ne3 Be1 Ra2 Bh4 Rg1 Rc8 a8Q Rc4 Qc8 Ra4 Qb7 Qhg2 Qb5 h1Q Rc8 Qhh2 Rc5 Bd6 Rd5 Bb8 Be1 Ba7 Ba5 Qfh3 Bf3 Qc2 Be2 Qc6 Bd1 Qf3+ Rg4 Rbb4 Qd3 Rb7 Qe2 Kh7 Qb5 Qf1 Rg1 Be1+ Kg4 Qhh6 Qb3 Bh4 Qb4 Ra1 Qb3 b1R Rh2 R1a2 Qc4 R1b3 Qb5 Kg6 g8Q+ Qhg7 Bb4 Rab2 Qf8 Kh7 Kh5 Qh8 Qh6+ Kg8 Ba5 Qf3+
1n4Br/1k1BQ1qR/n2b1n2/r4PqQ/2brR3/4KN1q/nNRB4/1qn2r2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc7 g4 b5 a5 e5 g5 b3 a6 b2 c5 d3+ Ke3 h3 g6 h4 f5 d2 c6 d4+ Kf2 b4 g7 e3+ Kf3 e4+ Kf4 b3 a7 e2 Ra4 e1N Ra1 h2 Na3 b1Q Nf3 d3 Rg1 h1R Qe2 d1N Bd2 e3 Bc3 d2 Qd3 e2 Bd4 b2 Be5+ Bd6 Qb5 h3 Qd5 h2 Qe6 Nf6 g8Q Nc3 Qg5 d1R Rg2 Nc2 Qh5 e1N Nc4 Ba6 Ra4 Nb4 Ke3 Rd4 Rc2 Nca2 Bf4 Qa1 Qe7+ Kc8 c7 b1Q Bh6 Ned3 Nb2 Ndc1 Bc4 Rf1 Bg8 h1Q Bg5 Kb7 c8B+ Kb6 Bce6 Qh3 Bd7 Bc4 Bf4 N4a6 Bg5 Nc6 Bf4 Kb7 Bh6 Rc8 a8R Ncb8 Bg5 Rc5 Ra7+ Kb6 Bh4 Ra5 Be1 Qf8 Bd2 Qg7 Rc7 Qgg3 Rc8 Kb7 Rf8 Rf4 Rf7 Qg5 Rh7 Bd3 Re4 Bc4 Nd3 Qe5 Qd8 Qe7 Nb2 Qeg7 Qe7 Qgg3 Re6 Rd4 Re4 Q3g5+
2nrqqk1/q3n2r/N2Q4/2PNQ3/bQq1K1N1/1n4Rb/1Rbb2B1/n1Bn4 w - - 0 1 illegal: No possible last move
1QN1bb2/2Rb2N1/2K1PNn1/k2n2r1/n3r3/1Rnbb1Br/4BQ2/1Rq2rq1 w - - 0 1 illegal: No possible last move
6R1/n4r2/2P2B2/bbN2rn1/2Q3B1/1KqqqqBQ/1Rn1k3/q2rrNnN w - - 0 1 illegal: No possible last move, all moves rejected
2r1R2b/R2r4/1Pq2nQQ/n3N1BN/1kb2q1R/qb2nqn1/5b2/NB1n2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 g4 Kd6 b4 h5 e4 a5 c4 f5 g5 a3 b5 Kc5 e5 d5 g6 a2 e6 f3 g7 a4 e7 h3 e8N d3 b6 h2 Bh6 h4 Bf4 h3 Nc7 d4 Bg5 a3 Ne6+ Kb4 c5 d2 c6 f4 c7 d3 Bh6 Qd7 Ng5 Nc6 Ne4 Na5 Qc2 d1N+ Ke1 f2+ Kd2 f3 Nc5 Ba6 c8R Rh7 Na4 Bc4 Rd8 Nf6 g8Q Qc6 Bg2 f1Q Nac3 f2 Nf3 Rc8 Be3 Rd7 Re8 Bb3 Bh6 Ne3 Qe6 Bg7 Bg5 Bh8 Ne5 Qf3 Rg1 h1Q Ne4 h2 Ng3 Qc6 Be4 Qf3 Qc1 h1N Nh5 Ng3 Rh1 Qf4 Rh4 Qh3 Nc3 f1B Ke1 Qhg4 Qf5 Qgf3 Qg6 Be2 Nd1 Bf1 Rb1 a1Q Bf5 Qb2 Ra1 a2 Be4 Qa3 Bf5 Neg4 Ne3 Be2 Nf1 Ne3 Nd2 Bc4 Nb3 Bd1 Rb1 Bc2 Na1+ B2b3 Rb2 Qa8 Rf2 Qfc6 Rf3 d2+ Kf2 d1N+ Kg1 Qab7 Rf1 Qcf3 Bb1 Qbc6 Qd2+ Kc5 Nc2 a1B Rf2 Bc3 Na1 Kb5 Qd6 Bb4 Ra2 Be1 Qf8 Ka4 Qfh6 Kb4 Rd2 Rf7 Rd7 Re7 Rb7 Rd7 Ra7 Bf2+
n1r2R2/RN2nN2/1Pn3nB/r4bb1/QbRQr3/1N3bqB/4k1q1/2Kb1r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 Kd6 c4 Ke5 e4 a5 g4 h5 g5 d5 c5 f5 b5 a3 g6 d3 g7 Kd4 e5 a2 b6 a4 c6 h3 c7 f3 e6 h4 e7 f4 e8R h2 Qc2 a3 Re5 h3 Be2 f2 Bf1 f3 Kd1 d2 Qa4+ Bb4 Re2 Kd3 Qa7 d4 Nc3 Nc6 Bb2 Rh4 Qa4 Nge7 g8N Ng6 Rc1 a1B Nb1 a2 Qa7 Qd6 Nf6 Re4 Na3 Bf5 c8Q Qg3 Bg2 f1Q+ Re1 f2 Qcb7 Rc8 Ne2 Ke3 Rg1 h1N Nb5 h2 Kc2 d1N Nd7 Nc3 Nc5 Nd5 Qd7 Nc7 Nd6 Na8 Bh3 Qfg2 Ncb7 f1R Qa4 d3+ Kd1 d2 Nd4+ Kf2 Nb3 Kf3 Bh8 Bf6 Bg7 a1R Nf7 Bg5 Qd4 Ra3 Kc2 d1B+ Kb1 Ra2 Rc4 Ra3 Bh6 Ra2 Qb5 Ra5 Re3+ Kf2 Rf3+ Ke2 Qa4 Nce7 Qad7 Nf2 Qa4 h1B Rf4 Ng4 Kc1 Re1 Rf1 N4e5 Rf3 Rf1 Rf2+ Ke1 Ra2 N5c6 Qb5 Ra3 Qh8 Q2f2 Nfd6 Bfg4 Qd4 Bhf3 Ra1 Qfg2 Qa5 Bh4 Rf8 Bf5 Nf7 Ke2 Qa6 Ra2 Qb5 Rb2 Ra3 Ra2 Ra7 Ra5 Qa4 Bg5+
R1nknq2/4Nnnq/2r5/2N5/R1BbQr2/1n1n1nnP/Q1q3KN/B4bR1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 e4 b5 c4 g5 a4 d5 c5 g3+ Kf3 g2 e5 g4+ Kf2 d3 h3 f3 a5 f4 a6 b3 c6 d2 e6 d4 a7 b2 c7 d3 e7 b4 Qe1 d1Q Bd2 b3 Qe4 Rh4 Qe2 Nd7 Nc3 b1Q Ra5 b2 Qe6 Bg7 Rg5 Ngf6 Rb5 Ba6 c8N Nb6 Be1 d2 Rd5 Qh7 Rf5 b1N Rb5 Qdc2 Nge2 d1N+ Kg1 f2+ Kh2 g1N Re5 f3 Bg2 Nb2 Ng3 Nd2 Qa2 Nb3 Nge4 Qd6 Kg3 f1N+ Kf4 f2 Na4 g3+ Kg5 Rf4 Ra5 Ne3 Bf3 f1N Bd1 g2 Bf3 Nf5 Ng3 Be2 Bd5 Nd3 Bc3 Kd7 e8R Qf8 Ne7 Rc8 Ba1 Rc6 Bc4 Kc7 Rb8 Nc8 Rb4 Ne8 a8Q Rb6 Ra6 Bd4 Qe4 Nfg7 Ra8 Kd8 Nc5 Rd6 Rba4 Rc6 Nh5 Ng3 Nf6 N3f5 Ng4 Nh6 Kh4 Nf3+ Kg3 Nf7 Nf5 g1N Nh2 Bd1 Ne7 Ne2+ Kg2 Ng3+ Qe2 Nf2 Qe5 Be2 Rg1 Nd3 Qe4 Bf1+
1r1kq1N1/1n3Qb1/1Nb4K/1qrnrB2/2n1bB2/Pq3Q2/1rRb1B2/N3Rq2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 e4 d5 h4 g5 c4 b5 h5 d3 e5 f3 Ke3 f2 c5 g3 e6 g2 e7 f4+ Kf3 d2 h6 g4+ Ke2 b3 h7 b2 c6 b4 c7 f3+ Ke3 g3 Kf4 d4 Kg5 b3 a3 d3 Rh3 Ra5+ Kg6 Bg7 Rh5 Bb7 c8N Rc5 Nh3 g1B Re5 g2 Rf5 Nc6 Rg5 Nf6 Nc3 b1R Nb6 b2 Qe1 d1Q Be2 f1Q Rg3 d2 Ncd5 f2 Bd3 Qb3 Qd1 Na5 Bf5 Bc6 Qf3 d1N Nb4 Qb5 Bf4 f1Q Nc2 Nd5 Nf2 Nb7 Ng4 Be3 Nh6 g1R Rg2 Bd2 Ng8 N1e3 Kh5 Nc4 Kg5 Be5 Kh6 Re1 Rd1 b1B Na1 Be4 Rh2 Re2 Re1 Rg5 Rf2 Bb4 Rh2 Rb2 Rc2 Bd2 Nf6+ Kf7 Bg4 Rf8 h8B Bec3 Ng8 Ke8 Bd4 Rgf5 Bf2 Bg7+ Kg6 Re5+ Bf5 Qd7 Kg5 Kf7 Kh5 Rb8 Kg5 Ke8 Kh5 Bf6 Kh6 Qe6 Na4 Kd7 e8Q+ Kc7 Qf8 Qe8 Nb6 Kd8 Qf7 Bg7+
n2B2Q1/r1bqr2Q/1n2b3/1Bkb1RP1/2q3K1/2NbN1nr/N3R1qB/4nq2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc6 g4 e5 c5 b5 f5 e3 Kf3 e4+ Kf4 d3 g5 d2 f6 e2 f7 e1R a5 d4 a6 d3 a7 h3 Bb2 e3 Ne2 b3 Ra2 b4 Bc1 h4 Ra4 h2 Nbc3 b2 Ng3 b1B Kf3 b3 Nh5 b2 Bh3 e2 Nd5 Be6 Rg1 h1B+ Kf4 Na6 Bg2 h3 Qc2 d1Q Nhf6 d2 Ng4 h2 Qh7 Qd7 Re4 Qb3 Nc3 d1Q Bf1 Qdc2 Na2 Qbc4 Ne3 Ne7 Bd2 Bf3 Ba5 h1N Bd8 Nc7 Rg2 Nc8 Rf2 Be7 f8B Ng3 Bg7 Bd6+ Be5 Kb5 c6 Bg2 Rf3 Nb6 Rf2 Kc5 Rf3 Rb8 a8Q Rb7 Qb8 Nca8 c7 Qd2 c8N Bc7 Nd6 Ra7 Nb5 Bd3 Nbc3 b1Q Rf2 Bgh3 Kf3 Bd5 Bf4 Bhe6 Be5 Nf5 Kg4 Ng3+ Rf5 Qdb2 Qg7 Rh3 Qh7 Rc1 Bf4 e1N Qc8 Rc2 Be5 Re2 Qb8 Nh1 Bh2 Ng3 Rf4 Ng2 Qh4 Qe4 Nc2 Bf7 Bf6 Bb5 Qg8 Qd4 Bd8 Re7 Qh6 Be6 Qhh7 Qa4 Be2 Qf1 Ne3 Ne1 Bc4 Qbg2 Rf2 Ba6 Re2 Qab5 Bb3 Qd3 Ba4 Bc4 Bb5 Qc2 Ncd1 Qb3 Ndc3 Bd3 Ba6 Qb4+ Bc4 Qb3 Bb5 Qc4+
5R2/QP3bK1/b2rb2b/qn3Nbk/Bn2b1R1/br2N1b1/4Qb1B/B2b1N2 w - - 0 1 illegal: No possible last move
1bb1n2q/Nn2N2k/1Q4Nr/1b4Bn/nKR1r3/1p2qQRP/3Q1qrn/5B2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 c4 Kf7 a4 Kg6 e4 b5 a5 d5 h3 b3 e5 f3 a6 f2 c5 g3 e6 b2 c6 b4 a7 d3 c7 b3 Kc3 g2 e7 f4 e8N d2 Rh2 d4+ Kc4 d3 Ra3 f3 Ra6+ Nf6 Qc2 d1B Ne2 g1Q Bh6 Kh7 Ra3 g5 Nd2 b1Q Qc1 g4 Nd4 g3 Nd6 g2 Be2 f1N N4f5 f2 Be3 Na6 Bb6 Ng3 Ra1 f1N Bf3 Qa2 Be2 Qe3 Ne7 g1R Nf3 d2 Nh4 Nc5 Nb5 Ne8 Rg2 Nb7 Kb4 Nh2 Bf1 Be2 Ng6 d1N Qd2 Nh5 Rg3 Nc3 Rc1 Na4 Rc4 Rg2 Bd4 Bh6 Bf6 Bf4 Bg5 Rb8 a8Q Bd3 Qc1 Qaf2 Qd2 Be5 Na7 Be2 Rc2 Bb5 Rc4 Qdd4 Nac6 Qh4 Qa5 Ra8 Qb6 Ra6 Na7 Qhd4 Qf6 Re6 Qf3 Bf4 Nac6 Re4 Na7 Be6 c8Q Bb8 Qc6 Bc8 Qa6 Rf8 Ka3 Qh8 Kb4 Rf6 Qb6 Rc6 Nh4 Rh6 Nhg6 Re5 Qdd1 Re6 Qd2 Re4
2b4Q/B1Q1Nb1r/7q/1nPqb2B/R5Kn/n3q2N/1NRq1pk1/1rr1q2R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 g4 Ke5 a4 h5 e4 f5 c4 d5 g5 b5 c5 h3 g6 b3 g7 b2 a5 h4 a6 h2 a7 d3 Be2 b4 Nd2 b1R Nh3 d4 Ra3 b3 Ra4 b2 Re1 h1B+ Kf2 f3 Nb3 d2 Nf4 d3 Ng2 h3 Kg3 f2 Rd4 f1Q Ne3 f4+ Kh2 f3 Kg3 h2 Rd6 f2 Ra6 Qd4 Ra2 Na6 Ra5 Rh7 Ra2 Bd6 Ng2 Ne7 g8N Ng6 Nf4 Nc7 Na5 Nb5 Nh3 Nh4 Ne7 Qe3+ Bf3 Rb8 a8R Rb6 Qc2 d1Q Nc4+ Kd4+ e5 Qdd2 Rd1 Qfe1 R8a4 Bg2 Qb3 h1Q Qb4 Ra1 Qa5 b1N Rc2 N1a3 Qa7 Bb8 Qc7 Rb1 e6 Rd6 Qb6 Rd5+ Kg4 Be5 Be2 Ke4 Qc7 Rd4 Nb2 Rc4 Nf5 Qh2 e7 Qhh1 e8Q Qh2 Nf4 Qhh1 Qh8 Bf3+ Kg5 Bh5 Ne7 Bf7 Bg4 Qhh3 Bh5 Qe6 Qhd8 Qd5 Qh8 Qh1 Rf1 Qde1 Rg1 d2 Rf1 Qh2 Rh1 d1Q Bd2 Qhh3 Ba5 Qd1d2 Bb6 Qhe6 Ba7 Qec6 Nf5 Qh6+ Kg4 Rb4 Nc4 Rc1 Nh3 Rb3 Qb7 Rbb1 Qc7 Kd3 Nb2+ Ke2 Rh2 Kf1 Rh1+ Kg2 Ng1 Bb7 Ne7 Ba6 Nh3 Bc8+
8/1q1bR2n/2N2nBb/1pQ1r1B1/5n1r/1K2RrNk/RQ1Pq1n1/1n2B1bq w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 h4 Ke6 a4 g5 h5 c5 h6 f5 h7 b5 a5 f3 e5 b3 a6 f2+ Ke2 g3 a7 c3 Ke3 g2 Ra3 b2 Rh2 c2 Rh3 c4 Qe2 f4+ Ke4 g4 Rab3 g3 Nc3 b1N Na4 c3 Rh5 f3 Nb6 Bd7 Kd4 Qc8 Bb2 c1N Nd5 c2 Qe4 Nd3 Ne2 g1N Ne7 c1Q Nc6 g2 Qe3 Ne1 Ng3 Bh6 Bd3 f1Q Bg6 f2 Ra3 Qa6 Ra2 Nf6 Rh3 Qe2 Ba1 Re8 h8B Nh7 Bf6 f1R Bg5 Qb7 Qa3 Qcd1 Qc5 Rf3 Bc3 Qc1 Ba5 Qcd1 Bad8 Rh8 Bh4 Re8 Bdg5 Re7 Rh1 Nh3 Rh2 g1B+ Rf2 Re3 Rf7 Ng2 Rf3 Rb3+ Re3 Ra3 Nf1 Nhf4 Be1 Re8 Ng3 Ra4+ Qb4 Rf8 Kc5 Rf5 Qb2 Ra3 Kb4 Rd3 Re4 Rf3 Re3 Qc1 Be7 Rh5 Kb3 Rh4 Bg5 Bc8 Nb4 Nd7 Nc6 Rb8 a8Q Ndf6 Qa5 Bd7 Qa7 Re8 Qc5 Bh2 Bf2 Qh1 Be1 Bg1 Bc2 Kf7 e6+ Kg7 e7 Kf7 Nf5 Kg6 Be4 Kh5 Ng3+ Kg4 Bg6 Rf8 e8R Kh3 Re7 Re8 Rg7 Re4 Re7 Re5
1n3BkN/1Bn5/r1BrpR2/2Q3n1/1qnb3b/1qqQ1bR1/2P1r2K/2N2Qn1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 f4 h5 Kf2 d5 Kg2 b5 a4 b3 a5 h3+ Kh2 h4 a6 b2 g5 e3 a7 e6 f5 e2 f6 e1B Nc3 b1Q Nge2 d3 Ra3 d2 Ng1 b4 Nce2 d4 Rf3 d3 Bb2 b3 Ng3 Ne7 g6+ Kg8 g7 Qd4 N3e2 Bb7 Ba1 b2 Nc1 Qc3 Qe2 d1N Na2 d2 Qb5 Nd5 Nc1 Nc7 Qb3 Ne3 Rg3 d1R Bg2 Nc4 Rf3 Rd6 Rf5 Bf3 Rf4 Qa2 Qb6 b1Q Qc5 Qbb4 Nge2 Qab3 Rg1 Rh5 Bh1 Re5 Rg3 Bf2 Bb2 Be7 Ba3 Bd4 Rf5 Re3 Nf4 Re2+ Bg2 Bd8 Ng6 Be7 Kh1 h2 Nh8 Bh5 Rf2 Bg4 Bc6 Bd8 Kg2 h1N Kg1 h3 Kh2 Bf3 f7+ Kh7 f8Q Bh4 Rgg2 Ng3 Bb7 Ne4 Rg3 Ng5 Qff5+ Kg8 Qd3 Bg2 Rf6 Bf3+ Rg2 Rc6 Qb5 Bdf2 Rg6 Qcb2 Rg3 Qf8 Na2 Kh7 Qbf5 Qc5 Qfd5 Qcb6 Bf8 Q6b4 Qc5 Rd6 Bc6 Bh5 Kh1 h2 Kg2 h1N Kh2 Bf3 Bb7 Re5 Qf1 Q2c3 Nc1 Bd4 Rf6 Nf2 Bc6 Nfh3 Bb7 Nba6 Bc6 Re3 Bb7 Ng1 Bc6 Rb8 a8B Rb6 Bab7 Nb8 Rf5 Ra6 Rf7 Kh6 g8Q+ Bg7 Rf5 Re1 Qf7 Kh7 Qg6+ Kg8 Rf4 Re3 Qgd3 Bd4 Rf6 Re2+
n1Q3b1/3q3R/3P4/4bNQ1/1k1n1B1r/3BR2n/pr1NBn1K/2rqqQnb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 d4 Kd6 e4 h5 b4 a5 g4 f5 Kg2 c5 d5 c3 g5 c4 b5 Kc5 b6 h3+ Kh2 a3 d6 f3 e5 a2 e6 f4 g6 c2 g7 c3 b7 h4 e7 a4 e8B f2 Ne2 a3 Bf7 f3 Qd2 Nd7 b8Q Ngf6 g8Q Nd5 Qh6 Bg7 Qgh7 Nf4 Be6 Nb6 Qh5+ Be5 Qg8 Qd7 Nd2 Kb4 Qc7 Rb8 Qg7 Na8 Bb2 c1R Qc6 c2 Rb1 a1N Qg1 a2 Nc3 Nb3 Qg2 Nd4 Bd3 f1Q Qe4 f2 Nd1 Qe1 Qgg5 f1Q Bf7 Bb7 Be6 Bd5 Bg4 Bg8 Qeg6 Qf3 Ne3 Qfd1 Bge2 Rh7 Qhg4 Rb6 Rf1 Rh8 Kh1 h2 Qf7 Nh3 Nf5 Rb8 Kg2 h1N Rf3 N1f2 Re3 Qa4 Qe6 Bf6 Kh2 Qf1 Nf3 Nf4 Bc3+ Kc5 Rb7 Rh6 Qg2 h3 Q5g4 Be5 Re7 Rh4 Rb7 Rb1 Kg3 h2 Bd2 h1B Re4 N4h3+ Bf4 Qg1 Rh7 R8b2 Nd2 Kb4 Qe8 Qd7 Qc8 Qgf1 Kh2 c1N Re3 Qfe1 Bf1 Ra1 Qg5 Nce2 Qg1 Rc1 Q1g2 Neg1 Bfe2 Rg4 Qf1 Rh4
kqr3N1/1Rn2B1n/b1PRr1b1/2b1QKB1/nQ5q/Qr5p/5b1q/2N2Rb1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc7 g4 b5 a5 Kb7 g5 e5 f5 d3+ Ke3 d4+ Kd2 e3+ Ke1 b3 f6 d2+ Ke2 h3 Kd3 e2 Ke4 e1B c5 h2 f7 b2 g6 d3 g7 b4 Qc2 d1N Na3 b1Q Bg2 h4 Nb5 b3 Qa2 b2 Bh3 d2+ Kf3 e4+ Kf4 e3 Bf1 e2 Ke5 h3 Qe6 Nf6 g8R Ra6 Nd6+ Ka8 Nf5 Nh7 Rg7 Qh4 Ne7 Bf2 Ng8 e1B Bc4 Nc3 Ne2 d1B Bg5 Na4 Nc1 Bh5 Rf1 h1Q Ra2 Rd6 c6 Bg1 a6 Bef2 Qe8 Be7 f8Q Qh2+ Qf4 Rh6 Bf7 Bec5 Ra3 Bb7 Rd3 Re6+ Kf5 Bc8 Ne7 Rf8 Ng8 Bb7 Qe7 Rc8 Qfd6 Qa2 Rd2 b1R Qe5 Rb3 Rd4 Qb2 Rd6 Nd7 Qf8 Ndf6 Qe7 Ne8 Qf8 Nc7 Qe7 Ka7 Qf8 Kb6 a7 Ba6 a8Q Rd8 Qc8 Ka7 Qd7 Rc8 Qdd8 Nd5 Qb6+ Ka8 Qb4 Nc7 Qd8 Ne8 Qda5 Nc7 Qa3 Re3 Qd2 Qb8 Qdb4 Rb3 Bg6 Nb5 Rb7 Nc7 Bf7 Bg6+
1Q5b/b1N1n1kn/q1PR1q2/3R2B1/1b1R1Qn1/1b1rp3/r1r1bq2/1Q3BNK w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 d5 Kf2 g5 Kg2 b5 h4 e5 c4 e3 c5 g3 f5 b3 h5 e2 c6 e1Q h6 e4 f6 d3 a5 d2 a6 b4 a7 g4 h7 d4 Ra5 b2 Bb5 b3 Bc4+ Be6 Qe2 d1R Ra3 d3 Nh3 d2 Rf1 Qf2+ Kh1 g2+ Kh2 g1B+ Kh1 g3 Qf3 Bb4 Nc3 b1B Qg2 b2 Bd3 Bb3 Ra6 Nd7 Qh2 Ne7 Bc2 Nf8 Bd3 Qd6 Be2 Bd3 Re1 b1Q Nd5 Qa1 Bf1 Be2 Nc7 Qa3 Rb6 Qa6 Rb5 Kg6 f7 Kg7 Re5 Qdf6 Rd5 Rg8 h8R Nh7 Rd4 Rgd8 Re8 Rd5 Rh8 Rc5 Rhd8 Rc2 R4d6 Q2f4 Rd5 Bd4 Ng1 Qf2 R8d6 Bdc3 Qh4 Ba1 Qf4 g2+ Kh2 Bd3 Re3 Be2 Red3 Bb2 R3d4 B2c3 Nf3 g1B+ Kh1 e3 Bb2 Bh2 Qf5 Be5 Ng1 Bc5 Qe4 B3b4 Ba3 Rb1 Qd3 d1N Qb5 Rd8 a8Q Rbb2 Qab8 Ra2 Bb2 Ba7 f8Q+ Kg6 Qh6+ Kf7 Qh4 Kg7 Qf4 Qf7 Qd3 Qf5 Rf6 Rc3 Qb1 Kg8 Ra5 Qg3 Re4 Rc2 Re6 Bh8 Bg7 Qf6 Bh6 Qe1 Bg5 Kg7 Rc4 Rd3 Rd5 Qg3 Red6 Qe1 Kh2 Nf2 Rcd4 Ng4+ Kh1 Qf2
k3q1bq/4R1Q1/pnb1qBBP/B4n2/1Qr1Rq2/1N1q2bn/5r2/rNNK4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 g5 h4 f5 b4 d5 e4 Kd7 h5 Kc6 c5 Kb7 e5 f3 e6 a3 h6 f2+ Kd2 g3 b5 a2 b6 d3 e7 g2 e8N f4 Nf3 g1Q Ne1 f3 Qc2 d4 Nc3 g4 Qb1 g3 Kd1 d2 Nb5 g2 Nd3 Be6 Na3 Ne7 Nf6 Bg8 Nb2 Qe8 Nd7 Nf5 Nd3 Bd6 Nb4 Bg3 Ne5 Nd7 Nbd3 a6 Rh2 Rc8 c6+ Ka8 c7 Rh7 Rh3 Rf7 Rh4 Qh2 Be2 g1N Nc5 f1B Bb2 f2 Bh5 Qh3 Re4 Bb5 Ned3 Bc6 Nb3 Rf8 Ndc1 f1Q+ Kc2 d1R Bg6 Qf4 b7+ Ka7 b8B+ Ka8 Bc3 Nb6 Ba5 Qhg4 Qb2 Nh3 Nb1 Rf1 Qc3 Rf6 Qb4 d3+ Kc3 d2 Kc2 Qe2 Re7 Rf2 Ba7 Qee4+ Kd1 Rd6 Bb8 Qe6 Ba7 Rd4 Bb8 Rcd8 c8Q Rc4 Qc7 Rd5 Qe5 Rd3 Qg7 Rdf3 Nc5 Ra3 Be5 Ra4 Bf6 Ra3 Nc3 Ra4 Rb1 a1Q N5b3 Ra2 Rb2 Ra4 Rc2 Qb2 Nb1 Ra1 Bh4 Qbe5 Rc3 Qed4 Re3 Qd3 Re4 Qd4 Qf7 Qh8 Qg7 Rd4 Kc2 d1Q+ Kc3 Rf1 Bf6 Qdf3+ Kc2 Rf2+ N1d2 Q3e3 Kd1 Rc4 Nb1 Qd3+
N2N1Br1/Rr3bp1/4nrBb/PnQNK1k1/3B3q/R1qn1b2/1rQ5/3r1q2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 f4 Kg6 c4 d5 a4 e5 h4 b5 c5 e3+ Kd3 e4+ Ke2 g3 c6 b3 c7 g2 a5 d3+ Ke1 d4 Qe2 b2 Qf3 d2+ Ke2 d1B+ Ke1 e2 Kf2 e1N Kg3 d3 Bd2 b4 Qf2 e3 Nf3 g1Q+ Qg2 b3 Ra3 e2 Bc3 d2 Rh3 Be6 c8N Bb4 Ng5 Nh6 Nf7 Rg8 Nb6 Nd7 Bd4 Nc5 Nc3 b1R Ncd5 Ra6 Na8 b2 f5+ Kh5 f6 Ned3 Kf3 e1Q+ Be2 Qc8 Nd8 Nf5 f7 Nd6 f8B Bf7 Rh2 Kh6 h5 Nb5 Rh4 Rf6+ Rf4 Ne6 Ke4 Be7 Qf2 Kg5 h6 Qh2 h7 Qh4 h8Q Qf1 Bh5 Qc3 Qh7 Bg4 Bg6 d1R Qc2 Bd6 Rf2 Bf4 Qh8 Rbc1 Qh7 b1R Re2 Rb2 Rd2 Qb3 Qc5 Rcb1 Rc2 Bh5 Rc4 Qc3 Rb4 Nbc7 Rb7 Nb5 Rd7 Kg4 Re7 Bh6 Ra7 Kg5+ Ke3 Ndf4+ Ke4 Bf3+ Ke5 Nbc7 Nb4 Ra2 Nd5 Rb7 Bh5 Nb5 Qc2 Rb2 Bg6 Nd3+
RKnq2r1/4pB1r/R2b2Qn/B7/2NP1R2/N2b2bq/2Nrk3/qn2rrQ1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 Kg5 a4 b5 d4+ e3 g4 h5 f3 h3 a5 b3 a6 c3 a7 h2 Ra2 c4 Na3 h4 Be2 c2 Bb2 c1B Bd3 b4 Bf5 c3 Nb1 h3 Ba3 e2 Nd2 b2 Nb1 c2 Bg6 b3 Bf7 Bh6 Bb4 Ba6 Ba5 Nc6+ Ke6 Kf4 g5 Ke3 f4 e1R g6 Rh7 f5 Bd3 f6 Bf4 g7 Bg3 Na3 b1Q Nf3 b2 Rf1 Nh6 g8Q h1Q Qg6 h2 Rf2 Rb8 a8N Na7 Nb6 Nc8 Rf1 Re2 Ne1 Rd2 Rf4 Qa1 Qdg4 Qf3 Nbc4+ Ke2 Q4g5 h1R Qg4 Qh8 Kd7 b1N Kc7 Rf1 Q4g5 Bb2 Qg4 c1R Nec2 Rce1 Q4g5 Bf2 Qg3 Ra8 Qg1 Qh3 Kb7 Bg3 Kc7 Ra7+ Kb8 Rd7 Bd5 Rc7 f7 Qd8 f8R Bc3 R8f6 Bb4 Ra6 Rc5 Bf7 Rg5 Rb2 Bc5 Rb7 Bb4 Rba7 Rg4 Ra8 Rg5 Qd6 Rg8 Qg6 Bd6+
1r3b2/2P2k1N/1pq2B2/nqQq3b/q1Q1r1RK/n4Bq1/3R2rQ/1bBn1N2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 h4 d5 e4 g5 a4 g3+ Kf3 d3 c4 d2 h5 g4+ Kg2 b3 h6 d4 e5 b6 c5 d3 a5 b2 e6 Ne7 a6 Qd5+ Qf3 d1N h7 d2 a7 Ng6 c6 Ne5 e7 Nc4 c7 Na3 Be2 Nc6 Rh4 Rb8 a8Q Na5 Rh1 Kf7 Nc3 b1B Qe4 f3+ Kf1 f4 Rh2 f2 Kg2 f1R Qc6 Rg8 h8B Re1 Qc5 Bd7 Bf6 Be8 Ra2 Rg5 Rh4 f3+ Kh1 g2+ Kh2 f2 Kg3 f1Q Qec4 Rg7 Bf3 Re4 Nce2 Rg6 Nh3 g1Q+ Bg2 Qd4 Bf3 Qc3 Rb2 Qc2 Ra2 Qa4 Rb2 Qc6 Ng5+ Kg8 Nh7 Kf7 Rh3 Rg7 Kh4 Rg8 Rh2 Rg6 Rb4 g3+ Bg4 g2 Ng3 Qd3 Nf1 g1Q Rg2 Qb3 Ra4 Qbb5 Rf2 Re5 Bf3 Rg2 Rb4 Nb2 Ra4 d1Q Rd2 Qc2 Rb4 Nd1 Ra4 Kg8 Rb4 Bh5 e8Q Qca4 Qc8 Qe3 Qh3 Kf7 Qh2 Re7 Qc2 Qc3 Rg4 Re4 Qd3 Qce5 Qdc4 Qg3+
Q1nRq2k/p1brB2N/4n1nr/5Q1R/r1Bqb3/1KR4P/1q2q1N1/1qB4b w - - 0 1 illegal: No possible last move, all moves rejected
2Q1K3/1q4k1/1nRn2b1/r1p4r/B2bb1BN/R2r1Qb1/bP1b2N1/Bnb1Q3 w - - 0 1 illegal: Other
3r1b2/5NR1/RB1nr3/rNq2R1B/4p1n1/1bQP2rn/1qrQ1r2/r2K1N1k w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 a4 Kd7 g4 Ke6 f4 Kd5 g5 e5 a5 b5 g6 c5 f5 h5 g7 b3 a6 c3 a7 c4 f6 b2 f7 h3 Ra3 c2 Rf3 h4 Bg2 b4 Ke2 b3 Rg3 c3 Rg5 h2 Bf3 h3 Ke1 Qa5 Na3 b1R Ne2 b2 Bg2 Nh6 g8Q Nc6 Qg6 Ne7 Rf5 Ng4 Nd4 Ra1 Rhf1 b1R Rg1 h1R Nc4 h2 Qh7 Qc5 Nd6 Rb2 Rh5 Be6 N6b5 Nc8 Qf3 Nd6 Rf1 Rg1 Ne2 h1N Rh4 Nhf2 Qh6 Nh3 Ng3 Rd8 Qhe3 Rh5 a8R Rba2 Qee2 Ra5 Qef2 Rf5 Ra6 Rf6 Q2e3 Rf4 Qfe2 Rf2 Bf3 Rgg2 Qd1 Rg1 Ba3 c1R Rh7 c2 Qc3 Rgg2 Be2 e3 Rg7 Rg1 Nf5 Ke4 d3+ Kf4 Ng3 Bb3 Bf3 e2 Kd2 Qd4 Bc5 e1R+ Be2 Rg2 Ba7 Qc5 Bb6 Be7 f8N Rg1 Nd7 Bf8 Nf5 Rg2 Ne3 Kg3 Rg8 Kh2 Rg7 e4 Ne5 Rg3 Nf7 Rf6 Qc4 Re6 Rf5 Rf1 Qc3 Rf2 Nf1+ Kh1 Qe1 Rcb1 Qd1 c1Q+ Ke1 Qb2 Qdc1 Nh2 Bh5 Ng4 Qd1 R1a2 Qdc1 Rba1 Qd2 Qbd4 Qc3 Rac2 Kd1 Qf6 Qd2 Qb2 Qc3 R1a2 Q1d2 Ra1+
2kBb3/n6R/R1nr1Nq1/1Qb2Pn1/1pQn3q/3B2bB/1n1Rn1K1/2r1n2N w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 h5 Kf2 e5 c4 b5 a4 d5 g4 Kd7 c5 e3+ Kf3 e2 a5 e1B g5 d3 a6 b3 a7 d2 g6 e4+ Kg2 b4 g7 d4 Kh3 e3 Bg2 e2 Be4 d3 Kh2 b2 Ra3 h3 Rb3 h4 Na3 b1Q Nc2 Nf6 g8B Nh7 Bb7 Ng5 Ne3 Rh6 Nf1 Nc6 Ne3 Rd6 Qc2 d1N Nf3 d2 Nd4 Nb2 Nd5 d1N Qd3 Nc3 Ba6 Nb5 Nf5 Bg3+ Kg1 e1N Nf6+ Kc7 Be6 h2+ Kf1 Rb8 a8R Nba7 Qb5 h3 Rd3 Bd7 Rd2 Be8 Bd7 Rc8 Be6 Bf2 Ng3 Qg6 Bf5 Qe7 Bd3 Qeh7 f5 Qh4 Bb7 Nb8 Bg2 Nbc6 Rb8 Kd8 Rb6 Rc7 Ra6 Kc8 Nge4 Bg3 Nf2 Na5 c6 Be7 Bf3 Bf8 Bg4 Be7 Rg1 h1N Rg2 h2 Bh3 Rcd7 c7 N5c6 Re2 Bf8 Re7 Rd8 Rh7 Be7 Bc2 Rd1 Bf4 Bc5 Bd3 Rc1 Bd6 Rd7 Be7 Rd6 Bd8 Ngf3 N2g4 Nfd4 Rc2 Nf2 Rd2 Ne4 Nf2 h1N Kg1 Nef3+ Kg2 Neg5 Re2 Bh2 Rd2 Ng3 Nh1 Nge2 Ra3 Bg3 Rf7 Nce5 Be4 Bb6 Bd3 Kb7 Ra6 Ne1+ Kf1 Nd7 Rh7 Nb8 c8Q+ Ka8 Qc3 Bc5 Qcc4 Nbc6 Qa5 Kb8 Qb6+ Kc8 Qbb5 Nef3+ Kg2 Ne1+
bNR1n3/1R1b1B1n/b4p2/1bP3B1/RQK1b1qN/1N3q2/rk2n1Qb/1b3r2 w - - 0 1 illegal: No possible last move, all moves rejected
2k1n3/6Rn/N1r2qQ1/4QP1p/1n1bRNBb/1BNrn1Br/r7/1n2K1rb w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 h5 g4 e5 a4 d5 c4 Kd7 a5 b5 c5 e3 a6 e4 a7 h3 g5 h2 f5 b3 g6 e2 g7 d3 Bg2 b4 Nd2 b2 Nb3 b1R Ra5 d4 Rb5 d2+ Kf2 e1N Ne2 d3 Ng3 e3+ Kf1 e2+ Kf2 Qf6 Ra5 Nc2 Bh3 e1B+ Kf1 Na6 Nd4 b3 Ne4 b2 Bg4 Rh6 Nc3 Nc7 Nde2 Ne8 Rg1 h1R Ra4 Nb4 Nf4 Rh3 Qe2 d1R Qe5 Bb7 c6+ Kc8 c7 Bc5 Bd2 Bg3+ Be1 d2 Ke2 Bh4 Bg3 Bd4 Rg2 Ne7 g8Q Ned5 Qg6 Ra1 Rg1 b1N Rg2 Ra2 Rg1 Rb8 a8N Rc1 Rg2 d1N+ Ke1 N1e3+ Nd1 Rc6 Nc3 Rh8 Rg1 Rg8 Rg2 Kd7 c8B+ Kd8 Be6 Rg7 Bg8 Kc8 Nc7 Ra8 Bf7 Rd2 Ra2 Rd3 Rae2 Ra2 Bg8 Qf7 Rg1 Ndf6 Na6 Nh7 Rgg2 Qf6 Bb3 Re6 Rg1 Bh1 Rgg2 Rc6 Rg1 Nd1 Re4 Ne3 Qg5 Rd7 Bf2 Re6 Be2 Rb7 Qh6 Qf7 Rg6 Rbb6 Rg7 Rg6 Bed1 Rgg3 Qg6 Rc6 Bg4 Rg2 Bg3 Qe6 Bc4 Qf6 Bb3 Rg1#
1Q2nN2/1bnB3B/N1Pp4/Q5B1/n1n2rR1/1kn1q1bK/b1R1r3/brb3Q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 e4 Kc5 a4 g5 h4 b5 c4 f5 e5 d3 a5 g3 h5 b3 h6 Kb4 a6 b2 h7 d2 e6 d6 a7 f3+ Kh3 f4 c5 f2 c6 g2 Ra2 g4+ Kh2 g3+ Kh3 f3 Ra3 Nf6 Bd3 f1N Ne2 g1B Qe1 g2 Qf2 d1N Ng3 Na6 Bc2 Nfe3 Bf5 Nc7 e7 Nc3 e8B Bh6 Ra5 Rf8 h8Q Bh2 Qe2 g1B Ra2 f2 Be6 f1R Bg4 Qe7 Be6 Nc4 B6d7 Qe3 Qg2 Na4 Na3 b1B Rc2 Bb7 Bg6 Nfe8 Bh7 Kb3 Qa1 b4 Nb5 Rb8 a8Q Re1 Qd2 Bf2 Rg1 Re2 Qdd4 Rf5 Qh8 Rf8 Qa5 Rf4 Bd2 Ba2 Nd4+ Ka3 Qf8 b3 Ne6 b2 Qh8 b1N Nf8 Kb3 Qg8 Qa7 Ne4 Nbc3 Rg4 Bhg3 Qg1 Bd4 Bc1 Bf6 Bd2 Qe3 Nc5+ Ka3 Na6 Kb3 Qh2 Ne4 Qg1 Ba1 Bc3 Bg5 Bf6 Nec3 Be7 Bh6 Bg5 Qe5 Qe6 Rf7 Rc1 Bc8 Bd8 Rf1 Rc2 Bc1 Be7 Rf4 Bg5 Qe3 Qed5 Rb4 Qab5 Ka3 Qe5 Rb1 Qb8 Bb7 Qa5 Kb3
2Rb1BrK/Q1b3R1/1Bp1N3/8/2Pnb2R/r1rkr2N/rnb1b3/2Q2Qqn w - - 0 1 illegal: No possible last move
nr2RKbB/NpR2Pn1/2b1r3/n2B4/1qR2r1k/b5Nn/3b1B2/Qn3Qb1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Kf6 h4 e5 f4 g5 a4 d5 f5 e3 Kd3 e2 a5 e1B a6 g3 a7 b3 c5 e4+ Ke2 g4 h5 e3 Kd3 Kg5 c6 b2 h6 g2 h7 g3 f6 Nd7 c7 Ne7 Qf3 Bd2 Rh3 e2 Nc3 b1N Bb2 e1R Nb5 Nf5 Qe2 Ba3 Qf2 Rb8 a8R Rf8 h8B Qe7 Na7 Nb6 Ra2 Qb4 Bc1 Be6 c8Q Bg8 Ra1 Re6 Qc3 Ng7 Ne2 g1N Rh7 g2 Ng3 Nh3 Rh4 g1B Bg2 Rf7 Qf1 Rff8 Ra2 Rf7 Rc2 Rff8 Rh6 Kg4 Rg6+ Kh4 Qa1 Rf7 Rc7 Rff8 Nc8 Rf7 Ra4 Na8 Na7 Rff8 Rg5 Rf7 Re5 Rff8 Ke2 d3+ Kf3 d4 Ke4 Bg5 Kd5 d2 Ne4 d1N Ng3 d3 Be3 d2 Bf2 Nb2 Re3 d1B f7 Rfc8 Re5 Nc4 Re1 Bd2 Re3 Rf6 Re8 Na5 Ke5 Rf4 Bd5 Qb5 Rb4 Ba4 Kd6 Qb6+ Ke7 Bc6 Kf8 Rd8 Qd3 Rd6 Rc4 Qb4 Qf1 Re6+
r1B5/Q2qNQnq/1nB1n3/2n2b2/n1rb4/Rb4Bk/pNP1K2N/R5nq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 g4 Ke7 e4 Ke6 b4 a5 g5 f5 e5 d5 b5 h5 b6 f3 b7 a3 g6 h3 g7 f2+ Ke2 f4 Qd3 f3+ Kd1 h4 Qh7 h2 Ba6 f1N Ke1 h3 Qd3 a4 Bc4 f2+ Kd1 a2 Nf3 a3 Ng1 Nf6 g8N Nfd7 Bb3 Nd2 Nh6 f1B Nf5 Bg7 Qe3 d3 Ne7 Rh4 Bb2 Nf3 Nc6 Kf5 e6 Kg4 e7 d4 e8B d2 Nc3 Na6 b8Q Nc7 Bg6 Nb6 Bd3 Bf5 Na4 Qd7 Ne2 Ne6 Rb1 a1N Na5 a2 Bbc4 Nb3 Bc1 Nbc5 Ng3 Bf6 Rg1 h1Q Bb5 h2 Bc6 Kh3 Ba6 Bc4 Nb2 Bb3 Ke2 d1N Qef4 Ne3 Ra1 Rg4 Nf1 d3+ Kf2 d2 Qa7 d1N+ Ke2 Bc3 Bc8 Bd4 Bd2 Rh4 Be1 Rg4 Bg3 Nc3+ Kf2 N3a4 Ke2 Bh7 Qf8 Nf5 Qf7 Nfg7 Rg2 Bf5 Rf2 Ne1 Rf3 Rf4 Rd3 Qe4+ Re3 h1Q Nh2 Nf3 Kf2 Bg4 Ke2 Qh7 Rc3 Bf5 Re3 Bd5 Ra3 Bb3 Nac4 Be3 Ne5 Rc4 Ng6 Bd4 Ne7 Ng1+
Q2r2BN/Qqq1qQKn/q3n3/RRB5/1bk1n3/q1b2pN1/b2r3P/2qR4 w - - 0 1 illegal: No possible last move, all moves rejected
3qr1n1/1Rb5/1n2r3/KQ2n1B1/6rQ/kNqPnQB1/bn1q2np/3B2RN w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 f4 Kd7 g4 Kc6 a4 Kc5 g5 e5 a5 h5 a6 b5 g6 b3 d3 Kb4 Kd2 c5 a7 b2 f5 e3+ Kc2 h3 g7 e4 f6 e2 f7 e1N+ Kd2 e3+ Ke2 c3 Bd2 h2 Ra3 h4 Bg2 h3 Bf3 c4 Qc2 Rh6 Bc6 Nd7 Nf3 Ng2 Nh4 Nb6 Be8 Re6 Be1 Bd6 Qc1 Bc7 Bf2 c2 Nf3 c3 Qf1 c1Q Nbd2 b1N Ng5 c2 Ra1 Na3 Rg1 h1N Nge4 h2 Ng3 Nac4 Nb3 Ne5 Rb1 Ka3 f8B+ b4 Bh5 Ba6 Rb2 Bc4 Qe1 Qa1 Rb1 c1Q Be7 Qac3 Bg5 Rc8 Na1 b3 a8Q+ Qa5 Qb8 b2 Nb3 Qcc3 Qf1 Bd5 Be1 Nf2 Nh1 Nd1 Bg3 Bc4 Qf3 Qab4 Qbb7 Ra8 Qbe4 Rb8 Qh4 Rc8 Rc1 b1R Bg4 Nb2 Rce1 Nf6 g8Q Bd5 Qgh7 Ng8 Qd7 Qf4 Qb5 Qfb4 Kf1 e2+ Kf2 Ne3 Rd1 e1N Ke2 Qcc5 Rc1 Qf4 Kd2 N1g2 Rc4 Rb8 Rb4 Bc4 Kc3 Re1 Qe4 Re8 Bd1 Qc6 Nc5 Ba2 Qd5 Qcf6 Nb3 Qf2 Qf3 Qg7 Rd4 Qh8 Rd7 Qd2+ Kd4 Qhf6 Kc5 N5c4 Bd6 Nf1 Qfg4 Nc8 Bg3 R1e6 Bh6 Qfc3 Bg5 Ba5 Qf3 Nfe3 Qb6 Ne5+ Kb5 Rb7 Ka6 Rb8 Qbc6 Rb4 Rb7 Bb6 Qb5 Bc7+ Qfc6 Nb6 Ka5 Qc8 Qce4 Qd8 Qf3 Rg4+
Bk2n3/N3R2R/qn2br2/q2b4/nQ1Qn1n1/rp6/1bPBQN1n/3K1qR1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 d5 g4 Kd7 a4 Kc7 g5 b5 a5 h5 e5 f5 e6 d3 g6 h3 a6 h4 g7 h2 e7 f3 e8R d4 a7 h3 Re7+ Nd7 Nd2 f4 Ra3 b3 Ra6 b2 Rb6 b1Q Rd6 b4 Bg2 f2+ Kf1 b3 Ne2 Nf6 g8Q Qa1 Qg5 Rh6 Re8 Bg7 Qd5 Qa6 Be4 Nb6 Bf3 Be6 Nc4 d2 Qh5 d3 Rg1 h1B Bb2 h2 Qe1 d1N Bc6 d2 Be4 Nc3 Ne3 d1N Bc1 Nb2 Ng4 N2a4 Bd2 Kc8 Re7 Ne8 Bd5 Ne4 Rdd7 Bb2 Rh7 Rg6 Rde7 Rf6 Qe5 Bf3 Qd4 h1N Bc6 Qd5 Qd1 Qda5 Bd5 Qb7 Nc3 Qba6+ Nb5 Bg2+ Ke2 f1N Qe1 f3+ Kd1 f2 Qe2 Nh2 Qb4 Rb8 a8Q f1Q+ Be1 Bf3 Qa7 Ra8 Nf2 Bg2 Qd7+ Kb8 Bc6 Ng5 Qdd3 Bgd5 Na7 Ne4 Bb7 Nhg3 Qdd4 Nf5 Bc6 Nh6 Bb7 N6g4 Bc6 Qg2 Bd2 Qf1+ Qe1 Q6b5 Nd3 Nac5 Nf2 Qa3 Nc8 Ra5 Na7 Qa6 Ba8 Qa4 Rc7 Q4b5 Rce7 Ra3 Rc7 Nca4 Rce7 Qfc4 Qf1 Qba5 Qe1 Qd3 Qf1 Qh3 Qe2 Qf1+
2N1Nr1b/b4b2/1r2rRQ1/2n1bq2/2KbQqP1/kBn2b2/2R1p3/BBRq4 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 f4 Kd6 g4 Kc5 a4 e5 d3 h5 a5 b5 f5 c3 f6 b3 f7 Kb4 a6 c5 d4 c2 a7 e3 Kd3 e2 d5 e1B d6 b2 d7 h3 Bg5 c1B Be7 h4 Be2 e4+ Kc2 e3 Kd3 h2 Qc2 h3 Bh4 c4+ Kd4 c3 Ra2 Bg7+ Bf6 Rh6 f8R Bf2 Bd3 e2+ Kd5 Bf4 Nd2 b1Q Rf7 Qc7 d8Q Be5 Bf5 Bfd4 Rf8 Be6+ Ke4 Bf7 Kd3 Nd7 Ngf3 Bh8 Ne4 Ne7 Nfd2 Nd5 Bg7 Re6 Rd1 h1B Bf6 h2 Rg1 Bf3 Qe8 h1Q Rc1 Qd1 Nd6 Rb8 Rb2+ Ka3 a8B b4 Nc8 Nc5+ Kc4 b3 Qe4 c2 Bb7 Nc3 Bd5 Qe7 Bg7 Qf6 Bh7 Ra8 Qg6 Qf4 Ne4 Bg8 Rf6 Bf7 Ned6 Rb8 Qe7 Ra8 Na7 Rf8 Ne8 Qh1 Rd1 c1B Rc2 b2 Nc8 Bce3 Rdc1 Qh5 Qb7 Qa1 Qc6 b1R Qe4 Rb6 Qg6 Re7 Be6 Qhg5 Qce4 Qgf5 Qg5 Nd5 Rf1 Bc3 Rd2 Rd6 Rh6 Nd3 Bd7 Qe6 Ba4 Bf6 Bb3 Ba7 Qd4 Nc5 Rfd1 Qc1 Bb1 Rb6 Qe4 Qef5 Rc2 Ree6 Rg6 Qcd2 Rdc1 Qd1 Qh6 Bb2 Qg5 Bfc3 Bd4 Ba1 Rf6 Bcb2 Qg6 Bc3 Bf2 Be5 Be1 Bad4 Bc3 Qh6 Ba1 Nc3 Qb7 Qh2 Qe4 Qhf4
nn2R3/qb4Nn/1B2rR2/3q2QK/NkqP3Q/rn2B2n/1p2rR2/1n3Bb1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 b5 h5 g5 d3 f5 h6 b3 e5 f3 Kg3 b4 h7 b2 e6 f2 a5 f4+ Kh2 f3 Kg3 b3 a6 c3 a7 c2 e7 Nf6 e8R Qd5 Rh3 Kb4 Na3 b1N Be3 c1N Rh6 c5 Bd4 b2 Rh2 c4 Be5 c3 Nb5 c2 Nh3 Bb7 Rg2 Bc5 Ra5 Nb3 Ra1 c1Q Bc7 Qcc4 Re7 Re8 h8B Nh7 Re2 Re6 Ra6 Bb6 Nf4 Be3 Kh2 g3+ Kh3 g4+ Kh4 Bd4 Rh2 g2 Nc3 g1N Na4 g3 Qc1 g2 Nh5 Nh3 Qg5 g1Q Ng7 Bb6+ Kh5 Bd4 Bg2 f1N Bb6 Ne3 Bf1 f2 Rg2 Qd7 Qh4 Nd5 Re4 Nc7 Qg5 Rg6 Re8 Qdd5 Rh2 Bf6 Be3 Bd4 Rf6 Bb6 Be2 f1R Rhf2 Re1 Bf1 Nd7 Rc8 Re2 Re8 Rd8 a8Q Nb8 Qa7 Na8 Qa6 Ba7 Qe6 Rd6 Qe4 Ra6 Qh4 Ra5 Nc3 Ra3 Na4 Bb6 d4 Qg3 Rc6 Qgd6 Ne6 Bc7 Bf6 Q6c5 Ng7 Bh2 Bd8 Qa7 Bb6 Bg1 Rd6 Re6 Rc6 Re5 Rcf6 Re6
Q1Bq4/b1rr4/1b1BnRrQ/2R1Kn2/p3n1N1/1bB3N1/qP4r1/1k2rrN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Ke5 e4 d5 c4 g5 h4 a5 h5 g3 h6 g4 h7 a3 c5 a2 c6 a4 c7 g2 Nd2 g3 Be2 f3 Nh3 g1R Qf1 f4 Qf2 g2 Rb1 a1Q Bd1 Nf6 Ng5 Qa2 Nh3 Ra7 Ng5 Na6 Bc2 Bc5 Ra1 Bb6 Qe3 f2 Qg3 f1R Bb3 Rg8 h8B Be6 c8Q Rg6 Bg7 Rc7 Rh7 Re1 Qe3 f3 Rh6 f2 Qa8 f1R Nh3 Ba7 Bd1 Bf7 Bg4 Nc5+ Kc2 d3+ Kc3 Bg8 Bc8 Bb6 Bf8 Ne6+ Bc5 Rf2 Rb1 Rgf1 Ng1 Ba7 Qh3 Kf4 e5 d4+ Kb4 Bb6 Ne4+ d2 Ng3 Ke3 Bd6 Kd3 Kb5 d1R Bd2 Kc2 Bc3 d3 Rc1+ Kb3 Qh4 d2 Rc2 Ne4 Qh3 Rg4 Rf6 Rg6 Qh6 Rfe2 Bd4 Bf7 Rc5 Ref2 Bc3 Kc2 Kb4 Kb1 Kb5 Nf8 Kb4 Bb3 e6 Rfe2 e7 Ne6 e8N Ref2 Nf3 g1B Kb5 Rfe2 Kb4 Bd4 Ng1 Rg2 Kb5 Rd7 Kc6 Rc1 Rf7 d1N Nf6 Bf2 Ng4 Ne3 Rf6 Rc2 Ba5 Rc4 Bc3 Nf5 Kd5 Be3 Ke5 Ba7 Rb5 Beb6 Rd5 Rc6 Rc5 Rcc7
2R4B/B1r1n1bN/3qNn2/3R2Kp/QQ1qq1b1/1rP2Bqk/2q3qN/2n4b w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 a4 Kf5 c3 Kg4 f5 e5 f6 d5 a5 b5 f7 h5 a6 h3 g3 e3 a7 h2 Qe1 e4 Qd1 b3 Na3 d3+ Ke1+ e2 Kf2 d4 Bf4 e3+ Kg2 b4 Nc4 d2 Qb1 d1Q Bg5 e1Q Nd2 b2 Bf6 d3 Ndf3 e2 Nh3 b3 Nf4 d2 Ne6 Rh7 Bh8 Bg7 f8B Nd7 Bc5 Rb8 a8Q Qc2 Ba7 d1Q Rg1 Qe7 Ra5 Qd4 Rd5 h1B+ Kh2 Qed2 Bg2 e1N Qc6 Q2f4 Qa4 Nd3 Rd1 Ndf6 Rc5 Bd7 Rc8 Qed6 Rd2 Kf5 Kh3 Ne7 Nh2 Nc1 Bf3 Rb6 Qba2 b1Q Qb4 b2 Qaa4 Qa2 g4+ Kg6 g5 Kf5 g6 b1Q Qba3 Rb3 Q3b4 Qce4 Rd1 Qbc2 Rd3 Bf8 g7 Qg5 g8N Bg7 Ng4 Qge3 Kh4 Qg2 Rd2 Qac2 Rd3 Qd4e5 Rd5 Q3d4 Nc5 Kf4 Nh2 Bg4 Ne6+ Ke3 Qc5 Kf2 Qcb4 Qeg3+ Kg5 Qf1 Be2 Kg2 Bd1 Kh3 Bf3 Ne8 Nf6 Qfg2 Nd7 Nf6 Ndf8 Qb1 Qa6 Qbb2 Qaa4 Qbc2 Qa2 Ng6 Nd7 Bf8 Qa1 Re7 Qaa4 Bg7 Ndf8 Rc7 Nh7 Ne7
3r1n2/QNb3qk/1N6/KRp2R2/3P1b1b/n2RBb1Q/1qrnBq1b/4b1Q1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 Kf7 d4 Kg6 Kd2 c5 a4 e5 h4 b5 a5 g3 a6 e3+ Kc2 e2 a7 e1B h5+ Kh7 h6 g5 f5 e4 f6 g4 f7 c3 Kb3 e3 Rh2 e2 Rf2 c2 Qd2 g2 Ra5 g3 Rf6 Qd7 Re6 Nf6 Nc3 Ne4 Ra3 Bb7 Ra4 Bd6 f8R Qg7 Nd5 Nd7 Ne3 Bc7 Qd3 Rd8 Nf3 g1Q a8Q g2 Nd2 Qf2 Nd5 g1B Nb6 Bgh2 Rf5 Nf8 Ra5 Rg8 Ndc4 Nd2+ Ka2 b3+ Ka3 b4+ Ka4 b2 Rb5 b1N Na5 b3 Qe3 b2 Qa7 Bh1 Nb7 Na3 Ka5 b1Q Qg3 Qa2 Qg1 Qb2 Re3 Bf3 Reb3 Qe5 Re3 Rg2 Rd3 Qg7 Ka4 Ndc4 Be3 Nd2 Ka5 c1B Rc3 Qfg3 Rcb3 Bf2 Rd3 e1B Be2 Qf4 Qa8 Bh4 Qa7 Kg6 h7 Qg3 Rf7 Qf2 Rf4 Kh6 h8Q+ Kg6 Qg8 Kh6 Qb3 Kh7 Rf5 Ndb1+ Qc3 Bcd2 Bg5 Bdf4 Bh6 Nd2 Qb3 Bfg3 Be3 Bgf4 Qe6 Qfg3 Re5 Rf2 Bd1 Qg2 Qh3 Ndc4+ Ka6 Rc2 Rf5 Nd2 Ka5 Qf1 Be2 Qf2
1R4qr/1Q4n1/bb1K2kb/1P1B4/rN2Rq1B/3n1N1Q/nbp2bq1/2b1QR2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 g5 h4 a5 d4 c5 e4 f5 b4 Kf7 d5 a3 d6 g3+ Kf3 a4 b5 g4+ Ke2 c3 Kd3 f3 Kc4 c2 Kd5 f2 h5 a2 e5 c4 h6 a3 e6+ Kg6 h7 c3 d7 f4 e7 g2 e8R g3 Re5 f3 Reh5 Nc6 R1h3 Nh6 Qd3+ Nf5 R5h4 Ba6 Nd2 Bh6 Qe2 Qg8+ Kc5 Nb4 d8Q Nd3+ Kc6 Ng7 Rb1 a1N Qd7 a2 Ne4 Nb3 Qe1 a1B Nf6 Bb2 Bg5 c1B Nd5 c2 Qb7 Ra7 Be2 f1Q Kd6 f2 Nf3 g1B Nb4 Qg2 Re4 f1Q Bh4 Bb6 Rh1 Qff2 Ra1 Qe3 Rf1 Qf4+ Kd7 Nf2 Bc4 Nd3 Ra4 Bce3 Ra5 Nbc1 Bd5 Na2 Ra4 Bec1 Re8 Qe2 Rb8 g2 Kc6 g1B Kd7 Qff7+ Kd6 Bbf2 Nc6 Bb6 Re4 Qg2 Nb4 Bgf2 Rd8 Bhg5 Qc6 Bc8 Bg3 Ra4 Rf8 Ba6 Qb7 Qf5 Rb8 Qf4+ Kd7 Qgf8 Kc6 Rg8 h8Q Q8f7 Qh3 Rh8 Bh4 Qg8 Kd7 Bh6 Ke7 Ne5 Kd6 Nd3+
B1r3kb/N3Kn2/1Q2n1n1/p3b2R/q2qN3/nB4r1/Q2BRqbP/2n1n1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 Kd3 g5 b4 f5 e4 Kf7 c4 a5 e5 g3 b5 g4 c5 g2 b6 a3 b7 g3 c6 a2 c7 f3 Na3 f4 Be3 f2 Qb1 f3 Qb6 Rh3 Rd1 a1B Qa6 Nh6 e6+ Kg8 e7 Nd7 b8Q Bg7 e8N Be5 Rd2 Bb7 c8B Nf8 Ne2 g1N Nd6 g2 Bg4 Rg3 Ndc4 Nf7 Qf6 Ne6 Qc8 Nh3 Nd6 g1N Qc7 Rc8 Qh4 Nhf4+ Kc2 d3+ Kb3 d4 Kc4 Ng6 Bg2 f1N Ndb5 f2 Nb1 Nf3 Rg1 Ne1 Na7 Bc6 Bh1 Bg2 Nbc3 Qf8 Ra2 d2 Ne4 d1Q Kd5 d3 Qb6 Qa4 Bd2 Bh8 Qe7 Bae5 Qa3 Qg7 Rb2 Qf6 Qa2 Qg7 Bc3 d2 Rb5 d1N Bd2 Nb2 Rc5 Ned8 Be6 Nbd3 Rb5 Nc1 Rc5 Bh3 Rg2 Qf6 Ng1 Qf4 Bg4 Ne6 Bd1 Qh4 Bb3 Qf6 Bf4 Nd2 Be3 f1Q Re2 Nb1 Bd2 Bg2 Rb5 Rf8 Kc6 Rc8+ Kd7 Rc6 Rd5 Q1f2 Rc5 Na3 Rb5 Bd6 Rh5 Q6d4 Ke8 Nh4 Kd7 Bde5+ Ke7 Rc8 Ng5 Bf1 Ba8 Bg2 Ne4 Ng6+
b2B1k2/3Q1nq1/q3Bp2/1Nnn1R2/2Nr2Rb/1nn1r2n/3NQ1PB/K2b2r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 c5 Kd2 b5 Kc2 h5 Kb2 c3+ Kb3 c4+ Kc2 h3 a4 h2 e4 h4 a5 h3 e5 f3 d5 f2 d6 Bb7 e6 Qc7 e7 Nf6 a6 Rh4 a7 Nbd7 Ra2 Nc5 Qd3 b3+ Kd1 c2+ Kd2 c3+ Ke2 b2 Ra3 b4 Bd2 c1N+ Kd1 b3 Ra6 Nd5 Ra5 Rd4 Bf4 c2+ Kd2 f6 Ra1 Bh6 Ra4 Bg5 Ra2 Bh4 Be2 f1Q Nc3 b1B Na4 b2 d7+ Kf7 e8N Kf8 d8B Qg7 Ra3 Rc8 Bg3 Ba8 Nc7 Rb8 Ra2 Rb3 Nf3 Ra3 Rg1 h1N Bh2 Nf2 Nb6 Ng4 Ra1 Ne5 Nb5 Nf7 Nc4 Na2 Bd1 c1N Bb3 Nac3 Rh1 Ba2 Kc2 b1R Nfd2 Qe2 Qf5 Qe6 Rf1 Qa6 Bf4 h2 Qd7 h1N Bh2 Nh8 Rf5 Nf7 Bdc7 Nf2 Bd8 Bb7 a8Q Nh3 Qb8 Bc6 Qe5 Ba8 Ba4 N1b3 Qe2 Rf1 Kb2 Na5 Bb3 Rg1 Raf1 Bb1 R1f4 Bc2 Rg4 Bd1 Ba2 N3a4+ Kb1 Re3 Ka1 Nac3 Ncd6 Ne7 Be6 Ned5 N6c4 Nab3+
k2q2nr/q1R3b1/3r1p2/2PN1RNb/q1r2n2/QKb2B2/3q2Qq/B3BN1q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 h4 Kd7 c4 Kc7 Kc2 g5 a4 b5 e4 Kb7 a5 d3+ Kb2 d4 h5 f6 e5 d2 e6 g3 e7 g4 e8Q g2 c5 f3 h6 b3 h7 b4 Qh5 d3 Ne2 g1Q Nbc3 g3 Bg2 Ra6 Ra3 Qh2 Nb5 Nd7 Nec3 Ne5 Qc2 d1Q Nc7 d2 N3d5 f2 Qf3 f1R Ne6 Ng6 Ng5 Rd6 a6+ Ka8 a7 Bg7 Ne3+ Bb7 Ra6 Nf4 Rc6 Ba6 Rg1 Be2 Qd3 Rf2 Rf1 Qe1 Qg4 d1Q Bf3 g2 Bd2 g1B Bc3 Rg2 Qh3 Rg3 Qg2 Rg4 Rf2 Rh4 Nf1 Rg4 Qa6 Qd4 Qa3 Qed2+ Ka1 b2+ Ka2 Qe4 Kb3 b1Q+ Bb2 Qee8 Rc7+ Qbe4 Ba1 Qb7 Bd5 Qb5 Rf3 Bd4 Be4 Nd3 Rf5 Bc3 Bd5 Rc4 Bf3 Nh6 Qf2 Nf4 Qg2 Rf8 h8B Ng8 Bd5 Bh5 Bc6 Re8 Bf3 Bf8 Bg7 Qa5 Bh6 Bg7 Bb2 Qa4+ Ka2 Ne2 Rf7 Qe3 Nd2 Ne7 Nh7 Rh8 Ba1 Ng8 Bg5 Qd3 Bh4 Nf4 Ng5 Qdd5 Rd7 Qbc7 Bf2 Kb7 a8N Ka7 Nb6 b3+ Kb1 b2 Ka2 Qd3 Nd5 Ka8 Bg3 Qca7 Rc7 Qad7 Kb3 b1Q+ Bb2 Qbh1 Ba1 Qe2 Nf1 Qd2 Be1 Qda4+
1q1N1b2/3rb3/Q2pB2r/Q1q2n1r/1PQR4/Bqq1n3/2k1KNqN/1R3b1q w - - 0 1 illegal: No possible last move
BbK1R3/1B3N2/1pq2q1R/2Q2N1q/2Q1bn2/1nqPBq1b/1r2r1kq/1r5N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Ke6 Kg4 Ke5+ Kf3 c5 g4 f5 a4 h5 e4 h3 g5 c3 a5 h2 d3 c4 a6 c2 a7 b3 g6 c3 g7 b2 Bd2 c1Q Bg2 c2 Qe1 b6 Qd1 h4 Nc3 b1R Nh3 Qe8 Na2 Qh5+ Kf2 f3 Ke3 f2 Qe1 f1Q Bf3 Nc6 Be2 Nf6 g8Q Bd6 Bf3 Na5 Nb4 Nb3 Qe2 Bb8 Qc4 Re8 Nf2 h3 Nd5 Qg2 Re1 h1Q Ne7 Qhh2 Nh1 Rb2 Qf2 f4+ Ke2 Qg7 Be3 Nd5 Nf5 Qf6 Ra5 Bd7 Rc5 Qa1 Rc6 Rb1 Rd6 c1Q Rc6 Qac3 Rd6 Qfg5 Rg6 Qf6 Rh6 Qhg6 Bg2 Bc6 Qg1 f3+ Kf2 Qh5 Re2 Ke6 e5 Q1c2 Qc1 Qd1 Qc5 Nf4 Re1 Be4 Re2 Qhg1+ Kg3 f2 Qc2 f1B Qc1 Qf7 Kg4 h2 Qc2 Qd7 Qa2 Qd5 Qa6 Qc6 Qac4+ Kd7 e6+ Kc7 Nf2 h1Q e7 Qhh2 Nh1 Qf2 Bf3 Kd7 Q4b5 Ke6 Qbc4+ Qd5 Re1 Ke5 Re2 Qc6 Kg5 Bh3 Bg2 Rf8 e8N Rf7 Re1 Qdf3 Ned6 Re7 Re2 Bc7 Re1 Rae8 a8B Bb8 Re2 Ra7 Re1 Ra2 Re2 Rab2 Re1 Nh5 Kg6 Re6+ Kf7 Nf4 Bb7 Rf6+ Ke7 Re6+ Kd8 Qh5 Bf3 Re7 Rg1 Qfh4 Rg8 Qf6 Q5b4 Qdf7 Bg2 Qf3 Re8 Q7h5 Qbc5+ Nd5 Bf2 Kf4 Nf7 Kg4 Bd4 Nf4 Be3 Qfg3 Bf1 Kf3 Be2+ Kg2 Ba8 Qcd6+ Kc8 Qgf3 Bd1 Nd4 Ba4 Nb3 B4c6 Qd5 Bcb7 Re5 Qe7 Qdc6+ Qc7 Ra5 Qc5 Raa2 Qc4 Re2 Qc5 Rab2 Qc4 Qb5 Q7c5 Qbc6+
1bbq1QB1/rR5p/r7/4n2K/2n1R2B/1b2Nr2/bkPNQbbR/4qB1n w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 a4 Kc4 a5 b5 g5 d5 g6 e5 f5 h3 a6 h2 a7 d3+ Ke3 d4+ Kf2 e3+ Kg3 b3 Kg4 b4 g7 e2 Bg2 e1Q Bg5 e4 Qd2 e3 Bh3 e2 Be7 b2 Qg5 d2 Ra6 d1B Na3+ Kc3 Qe3+ d3 Rd6 b1B Re6 b3 f6 b2 f7 Ba2 Qc1 b1B Qd2+ Kb2 Qg5 d2 Qf5 Nh6+ Kh5 Nc6 g8R Ng4 Qg6 Bb3 Qh6 B1a2 Nf3 Nce5 Bh4 Nc4 Qe3 Bd6 f8Q Bb8 Rg7 Nge5 Rb7 Rg8 Re8 Rg6 Bf1 Ra6 Qd3 Ng6 Re4 Nge5 Rg1 h1N Rg2 Qf2 Qe3 e1B Qe2 Qe3 Rh2 Bf2 Nb1 Qc3 Nd4 Qb4 Nf5 Qc3 Qg4 Bf3 Ne3 d1R Nd2 Bg2 Qe2 Qb4 Nb1 Rd3 Nd2 Bc7 Ng4 Rf3 Ne3 Rb8 a8B Ra7 Rb5 Rb6 Bd5 Rba6 Bg8 Bb8 Rb7 Qba5 Nb1 Qe1 Nd2 Rff6 Rg7 Rf4 Rb7 Rf3
3q1rQ1/NbKbPqb1/1B5n/1B1kN1nb/5p2/n3RRbN/1Q4bq/r6B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 g5 a4 b5 h4 f5 a5 g3+ Kf3 d3 a6 g2 h5 b3 h6 g4+ Kf2 b4 a7 g3+ Kf3 b2 h7 b3 Ra4 d2 Rh3 Bg7 Rb4 Nh6 Qe1 d1Q+ Ne2 g1Q Nd2 b1N Ba3 b2 Qf2 g2 Qh4 Rf8 h8Q Qh2 Qg3 Na6 Rb3+ Nc5 Re3 Qb3 Ng1 Bb7 Bb4 Qa2 Ba5 Na3 Bb6 Ne6 c5+ Kc6 e5 b1B Be2 d5 Nc4 d4 Qf2 d3 Qg8 Kd5 c6 d2 c7 d1B c8N Bd3 Rg3 B3c2 Nh3 g1B Qg2 Ba4 Qf2 Rb8 a8B Bd7 Qg2 Bf2 Na7 B1a4 Bd3 Be1 Qb2 Bd1+ Be2 Rc8 Na5 Rc1 N5c6 Ba4 Bb5 Ra1 Rg6 Bg3 Rf6 Qc4 Rf7 Nc7 e6 Bd1+ Qe2 Qa2 e7 Ne6 Ne5 Bc2 Qf2 Ng5+ Ke2 Bd1+ Kd3 f3 Qb2 f2 Kc3 f1B Kb4 Kd6 Ka5 Bh5 Rf6+ Qe6 Rf7 Bfg2 Rf6 Ba6 Bf3 Bb7 Be4 Bf1 Bh1 Bfg2 Rf7 Bbe4 Rf6 Kd5 Ka6 Qf7 Kb7 Qe8 Kc7 f4 Rc6 Bc8 Rcc3 Qd8+ Kb8 Bef5 Rf3 Bfd7 Rce3 Qe8 Kc7 Bb7 Bd3 Qa8 Bb5 Qd8+
Rr1NbRq1/BnPq2BQ/8/1qn1p1bN/2q3Bn/1r3R1q/K3q1k1/1Q5b w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 h5 f5 e5 a5 b5 a6 e3+ Kd3 h3 c3 h2 Kc2 Ke4 Kb3 d5 g5 d3 f6 d2 a7 e2 f7 e1N g6 h4 g7 h3 c4 d4 c5 d3 c6 Na6 c7 Nc5+ Kb2 b3 Be2 b4 Bh5 Nf6 g8R Bh6 f8B Ne8 Rg2 Bg5 Rf2 Nd6 Ra2 Ng2 Bg4 Bd7 Rf6 Be8 Bc8 Rb8 a8Q+ Ndb7 Rf5 Nh4 Qf1 d1Q Ra6 d2 Nf3 Qe2 Bg7 d1Q+ Nbd2+ Ke3 Ka1 b2+ Ka2 Rh6 Rf8 Rb6 Rg1 h1B Nd4 h2 Ne4+ Qdd2 Ng3 b3+ Ka3 b1Q Nh5 b2 Ne6 Qf5 Ka2 Qc2 Rg3+ Ke4 Rd3 Rb3 Rdf3 Q2d7 Be3 Qcc4 Bg1 Qdd5 Qe1 Q8d7 Nd8 Qg8 Ra4 Bg2 Qa6 h1Q Qh6 Qhh3 Ra8 Bh1 Bd4 Na6 Ba7 Nac5 R3f5 Ke3 Qh7 Ke4 Qb1+ Ke3 Nf4 Kf3 Nh5+ Kg2 Rf3 Qdb5 Bg4 Qd7 Qd1 Rb6+ Ka3 b1Q Qb3 Qbf1 Qb2 Rb3+ Ka2 Qcb5 Qbc2 Qc1 Qb2 Qcc4 Qbc2 Bd2 Qb1 Bg5+
1BBQ1q2/3Brr2/2QR2r1/1NnRrP2/2R2q2/2q3kp/b1N2q2/K2r1qbn w - - 0 1 illegal: No possible last move
3Nn2N/NRbb3n/n1Q2Qrr/B3rp2/2R1q3/1rQ2rnK/2BnP3/4q1k1 w - - 0 1 illegal: No possible last move, all moves rejected
4qqq1/2B4Q/QrB1PRn1/1Rn1K1Q1/2p1b3/1Rr4q/1n1n1nq1/1Nb1k2N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 c3 Kf3 Ke7 Ke4 Ke6 g4 b5 d4 h5 a4 f5+ Kf3 Kd5 g5 Kc4 d5 c5 a5 h3 a6 h4 g6 b3 g7 b4 d6 h2 d7 c2 a7 b2 Bd2 c1N e4+ Nd3 e5 b3 e6 h3 Bg2 Qe8 d8Q Ne7 g8R Na6 Qc7 Bh6 Qb8 Bb7+ Ke2 f3+ Kf1 f2 Ke2 f4 Bb4 f1Q+ Kd2 f3+ Rg5 f2 Nc3 b1Q Ke3 b2 Qd6 Rb8 a8Q Qg8 Qd2 Ng6 Bf3 Qg2 Qc7 f1Q Bc6 Qff8 Be8 Be4 Ba3 Rb6 Nge2 Kb3 Qe1 Kc2 Rf1 h1N Qeg3 h2 Rf6 Nhf2 Bd7 c4 Kd4 Kd2 Bd6 h1Q Ra3 Qa1 Rb3 b1N Qf4+ Ke1 Ng3 Qh4 Nh1 Qa4 Rgf5 Qc6 Rfb5 Nac5 Qa6 Nb2 Qg3 Bc1 Qg5 Nd2 Nb1 Qca8 Bc6 Qae8 Be5 Rh5 Qh7 Qhg3 Bd6 Rh3 Bc7 Q3h2 Qg4 Rc3 Qg5 Nf4 Ke5 Qhh6 R5b4 Qhh3 Rb5 Ng6+
2b1R1B1/4PbN1/2n1rq1N/2nk2Bn/rBn1p1qN/1K1bb3/3Q2Qn/b2R4 w - - 0 1 illegal: No proof kernel
bBq5/pNP1R3/2nQ2K1/3Qb2q/1n1qR3/k2rrB1q/b5N1/B2qRbb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kf5 Kb4 g4 d5+ Ke5 h5 c4 f5 e4 h3 b3 h2 c5 a3 c6 h4 g5 a2 c7 h3 g6 d3 g7 d2 Bg2 d4 Qf3 d1Q Qd3 f3 Bf4 f2 Qg3 f1B Qf3 d3 Qg3 d2 Nf3 Be6 Ne1 Qc8 Nc3 Bc5 Nb5 Nf6 g8Q Nd5 Bf3 Bg1 Nd6 Ka3 Nb7 Nb4 Kf6 N8c6 Be5 f4 Ng2 Bd5 Q8g5 Rd8 Kg6 Bg8 Bh8 Rd3 e5 Bd5 Rc1 a1B e6 Be5 Rc4 Qa1 e7 d1Q e8R Qd4 Re7 Re3 Bh5 f3 Bg7 f2 Bf3 Q4d2 Re4 Qd4 Q3f4 Bfc4 Qff6 f1B Qd6 Rb8 Rh4 Be4+ Qf5 Bcd5 Bh8 Bb1 Re4 Ba2 Bf6 Bf2 Rg1 h1Q Bg7 h2 Qh5 Bb5 Re1 Qf1 Qf5 h1Q Qfe6 Bg1 Bh8 Bdc4 Qed5 Qfd3 Bg7 Q3c3 Bf6 Bf1 Bg7 Qcc5 Bf6 Qhh3 Bg7 Nc2 b4 Bbe2 b5 N2b4 b6 Ba6 Na5 Bb7 Bf6 Ba8 b7 Qf8 Bh8 Rd8 b8B Qb5 Bf6 Qfh8 Bg7 Qa6 Bf6 Qac8 Nb7 Q8h5+ Kg7 Q4d3 Qd7 Bc3 Qb5 Bd2 Ba1 Bc3+ Qd4 Qc4 Qde5 Rdd3 Qd5 Q5h4 Qf6 Be5 Kg6 Qd4 Qfd6 Qh5+
4k1nK/nb1Rb3/1NNR4/rq2n3/Q2Q1B1r/Q1r1r2B/1n2pn1P/2R1b1q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 c4 d5 f4 e5 a4 b5 a5 e3 Kd3 b3 c5 b2 f5 e2 a6 e1B a7 b4 c6 e4+ Kc2 d3+ Kb3 e3 f6 g3 c7 g2 Na3 b1R+ Bb2 d4 Kc4 e2 Qb3 g4 Nb5 g3 Qa3 d2 Nf3 d1N Bc1 g1Q Nd2 b3 Bh3 d3 Nd4 b2 Nc6 Bb7 c8R g2 Rc7 Be7 Rd7 Rh4+ Kd5 Qa5+ Ke6 Qb5 Nc4 d2 Nb6 Nf2 Qb4 d1N Ra6 Ra1 Bf4 b1R Qd4 Rc1 f7+ Kf8 Ra3 Nb2 Rd3 Rc3 Rd2 Raa3 Rd1 Na6 Rc1 Re8 a8Q Nb4 Qa4 Ra8 Rd1 Ra5 Rd3 Qf1 Rd1 g1N Rc1 Nf3 Rg1 Ne5 Rg6 Nd5 Kf5 Nb4 Rgd6 Qg1 Ke6 Kg7 f8Q+ Kg6 Qa8 Kg7 Kf5 Kf7 Qa6 Ke8 Qa7 Neg4+ Kg6 Re3 Kg7 Rac3 Bh6 Ne5+ Kh8 Na6 Qa3 Nc7 Qa6 Qa4 Qac4 Nb5 Qcb3 Qc4 Qaa4 Na7 Qba3 Rhe4 Bf4 Qb5 Bg5 Rg4 Bf4 Rh4+
2N1bq1q/R1Bn1q2/5Bk1/Q1Kn3r/2b1R1q1/3Q1B2/qbprPr2/1bN1Q3 w - - 0 1 illegal: No possible last move
rN1q1k2/2bb1N2/2n1b1R1/1b1q3Q/q1r1q3/1brp1QPR/2B1N2B/3KnB2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 a4 h5 c4 f5 e4 d5 a5 b5 g3 b3 e5 b4 a6 d3 a7 h3 c5 h2 c6 b2 e6 b3 e7 f3 c7 h4 Nd2 b1B Bg2 h3 Ra2 f2+ Kf1 d4 Bc6+ Nd7 Be4 b2 Bg2 f4 Ra4 Nc5 Ngf3 Bc2 Qe1 b1B Ra3 Bd7 c8N Rh4 Ra4 Ba2 Qe6 Bcb3 Nb1 d2 Ke2 f1R Qa6 Nd3 Qh6 Ne1 Ng5 Rf3 Nf7 Rc3 Nb6 Rg4 Ra6 d1Q+ Kf1 f3 Qh5 f2 Be3 Rf4 Be4 Bg7 Bc2 Be5 Qf3 Bc7 Qh5 Rc4 Nc3 Rf3 Ne2 Qa1 Nd5 Qd1 Rg6 Qa1 Nb6 Qd1 Bc1 Rfc3 Be3 Qa1 Na4 Qd1 Nc5 Qa1 Na6 Qd1 Rg1 h1Q Nb8 Qe4 Rh1 h2 Na6 Rc8 a8Q Rb8 Qad5 Ra8 Nb8 Qa1 Qdf5 Qd1 Qff3 Qa1 Nc1 Qd5 Ke2 f1B+ Kd1 Bd3 Rf1 h1Q Bg1 Qh4 Rf2 Qhe4 Rh2 Bf1 Rh3 Bd3 Nh6 Bf1 Bh2 Bd3 Nf5 Kf7 e8B+ Kf8 Bf7 Ne7 Nh6 Nc6 Be8+ Qf6 Nf7 Qd8 Qg5 Rca4 Qgh5 Bb5 Kd2 Rac4 Ne2 Bb1 Kc1 Qa4 Kd1 B1a2 Rh4 Bc8 Bd7 d3 Bh3 Be6 Bf1 Bd7 Rh3 Q5g5 Qhg4 Rb4 Qff5 Bbe6 Qf6 Bab3 Qff3 Rbc4 Qh5 Qgd5
2K1bB2/Q2BN1n1/r4R2/1q1qnb2/4bQNk/1pbq1R2/q1r2qrP/BQ6 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 f4 Kf6 a4 b5 c4 g5 a5 e5 a6 d5 a7 b3 f5 d3+ Ke3 b4 c5 g3 c6 b2 c7 g2 Qd2 b3 Ra6+ Nc6 Qb4 g4 Ra3 Kg5 f6 d2 f7 d1B Ba6 g3 Ra5 d4+ Kd2 e3+ Kd3 Bh5 Kc4 d3 Kb5 d2 Kb6 d1Q Be2 Bf5 Kb7 e4 c8Q Q8d5 Nh3+ Kh4 Bf1 g1R Qd6 e2 Qcc7 e1Q Be3 g2 Ba6 Ne5+ Qdc6 Nh6 Bd4 e3 Bd3 e2 Bb5 Qd3 Nf2 Qed2 Ra6 e1Q Nc3 b1B Ng4 Bg7 f8B Qef1 Rb6 Rc8 a8Q Qa2 Qa7 Be8 Qf7 Be4 Qf4 Nf5 Ra6 Ra8 Kc7 Rh5 Qg6 Bf6 Ba4 Ng7 Bd7 Q3b5 Rc6 Qfd3 Qgf5 Rc1 Rf1 g1Q Rf3 Rg5 Rd6 Rc2 Qg6 Be7 Rf6 Bb4 Qgf5 Qf2 Qg6 Rb8 Qgf5 Rb6 Kc8 Ra6 Qg6 Nc6 Qgf5 Qd5c4 Nd5 Bc3 Ne7 Ne5+ Bc5 Qg8 Ba3 Qgd5 Bb2 Rg6 Ba1 Rc1 Qb7 Qde2 Bb2 Bec2 Ba1 Rg5 Q5e4 Qed2 Qe1 Bf5 Qa7 Bbe4 Ne3+ Rg4 Qd1 Rc2 Qb1 Q2d3 Qe1 Kh5 Qb1 Rg2 Ng4 Kh4
2rBrNNR/k1r5/5b2/3Q4/Kb1bRQnp/n3Pbq1/4Nqn1/1nR2b1B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 g4 Kc6 d4 Kb6 Kd2 f5 Kc2 h5 d5 c5 e3 b3+ Kc3 b2 g5 h3 g6 h4 a5+ Ka7 d6 b5 d7 h2 g7 b4+ Kc2 c3 Kb3 c4+ Ka4 c2 a6 b3 Qf3 c3 Bd2 c1B Qf2 c2 Na3 b1N Qf3 b2 Qh3 f3 Be1 f4 Ne2 f2 Rg1 h1R Rg3 f3 Ng1 Nh6 g8R Qg5 d8N Bb4 Qe6 Bb7 Qe7 Nd7 Bg2 f1Q Ne2 f2 Bd5 Nf8 Ne6 Ng6 Qf6 Re8 Nf8 Nf4 Nc4 Ng2 Nd6 Ng4 Nf7 Na3 Nh6 b1N Qf4 Bb2 Rf3 Rh7 Rh8 c1B Ng8 Rc7 Bc3 Ba8 Bf6 Bd4 Bd8 Bcb2 Bc6 Qe1 Bb7 f1B Bc6 Nd2 Rc1 Ndb1 Bd5 Qf2 Rg3 Kb6 a7 Bf6 Be4 Bbd4 Rf3 Bd5 a8Q Qe5 Qc6+ Ka7 Qd7 Ba8 Qd5 Rg1 Qh6 Qeg3 Rf4 Ne1 Bh1 Ng2 Re4 Rc8 Qf4 Bb7 Qb5 Bd5 Re6 Bf3 Qd5 Ne5 Rc3 Ng4 Nc1 Bd3 Re4 Re1 Rc5 Bf1 Ne2 Rd1 Rc4 Rd2 Rc1 Rdc2 Bc7 Rc5 Bd8 R5c7
K1r1B3/4Rr1Q/b1b2BN1/3qbq1N/Nn4P1/3q2n1/qQBnR1np/n5k1 w - - 0 1 illegal: No possible last move
nqN1BR2/2nR1b1q/bQ6/4n1Qn/6P1/QqBr2qK/2pbN2B/1kn2r2 w - - 0 1 illegal: No possible last move, all moves rejected
1r5N/4r1BN/Bq5R/Qn1bqBr1/1KQQr1P1/2Rnp3/6q1/bn1r1k1n w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 h5 f5 e5 f6 b5 c3 e3+ Kc2 Ke4 Kb3 d5 a5 h3 c4 d3 f7 e2 c5 e1Q c6 d4 c7 d2 a6 Ke3 a7 Kf2 Be2 e4 Na3 h2 Bf3 d3 Rb1 h4 Nc4 h3 Ne2 Nf6 Na5 Nfd7 Bb2 Ne5 Nb7 Nbc6 Nc1 Rh7 Nd6 Bg7 f8Q Be6+ Nc4 Nd4+ Ka2 b3+ Ka3 b4+ Ka4 Nb5 c8B Rb8 a8Q Bd5 Qa7+ Qb6 Ba1 b2 Qff7 b3 Bf5 e3 Rg1 h1N Na2 h2 Rc1 b1N Nd6 b2 Nb4 Rg8 Rg2+ Kf1 Qa5 Bh8 Rc2 Rg5 Rc3 Rhg7 Qc7 Re7 Qc4 Bg7 Nf7 Bf6 Qc2 d1R Qd4 d2 Nh8 Nd3 Rg3 Bg7 Rh3 Qg3 Rh6 Qe5 Qb3 Rc1 Qbc4 d1R B3e4 Bf6 Bc8 Rc2 Bef5 Rf2 Ba6 Rf4 Kb3 Re4 Ka4 Nf2 Kb3 h1Q Ka4 Qg2 Kb3 Bb7 Nd5 Nh1 Ka4 Bg7 Nf6 Bd5 Nh7 N1a3 Rb3 b1R Rc3 Rb3 Bb2 Nb1 Ba3 Rd7 Bf8 Bf6 Bg7 Re7 Nf7 Rb2 Nh8 Qf4 Rh3 Qbc7 Qdc5 Nd4 Rc1 Rb8 Rh6 Nb5 Qa7 Bc3 Qad4 Ba1 Rc3 Qfe5 Qcc5 Nf4 Kb4 Qb6 Qcc4+ Nd3+
Bq4nn/1qn3k1/3R1R2/3N1K2/1rR2npB/3Qq1Q1/BPq1N2n/1r1bb1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 Kd3 g5 c4 f5 e4 Kf7 h4 a5 e5 a3 e6+ Kg7 h5 a4 c5 g3 c6 f3 c7 f4 e7 f2 e8B a2 Qd2 g2 Bg6 f3 Qf4 a3 Nh3 g1R Qe3 Nc6 Be4 Nce7 Bh7 Bg4 c8Q Rb8 Qe1 Rb4 Qc7 Qb8 Qc2 Ng6 Bg2 f1N Qe3 f2 Qf4 Bd1 Qfd2 g4 Nc3 Ne3 Ne4 f1N Qa4 Nh2 Rb1 a1Q Qb5 a2 Ng3 Bc5 Bf3 Ng2 Ne2 Bf8 Qe3 N2f4+ Kd2 Be7 Qbd3 Bh4 Bg2 Qb7 Qg3 Qb8 Qc2 d3 Ke3 d2 Qd3 d4+ Ke4 Qb7+ Kf5 Qb8 Ba8 Qb7 Qge3 Be1 Qg3 Qb8 Qc2 d3 Qc4 Nf6 Bg8 Qb7 Bf7 Ng8 Qc2 Rh7 Bd5 Nh8 h6+ Kf8 Bb3 Re7 h7 Kg7 Ng5 Re3 Ne4 Rf3 Nf6 Rff1 Nc3 Bf3 Bd5 d1N Ne2 d2 Qd3 Nc3 Bb3 d1Q Nd5 Nb5 Bd2 Qb8 Rc1 Qb1 Rc4 a1Q Ba2 Qdc2 Be3 Nc7 Bf2 Rg2 Rg1 Qbc1 Rh1 Qe3 Rg1 Nf7 h8R Qab1 Rh3 Nh8 Rh6 Qb3 Rh1 Rgg1 Rf6 Q1c2 Rd6 Bd2 Rf6 Rb1 Rd6 Be1 Rf6 Nf1 Rhh6 Nh2 Rd6 Qeb6 Rhf6 Q6b7 Qh3 Qa3 Bh4 Qaa7 Qg3 Qe3 Nc1 Bd1 Ne2 Qcc1 Qc2 Qcd2 Qd3 Qc2
1Q2Bn1b/1r2NQb1/nr1qR2r/2B4q/b3NNpP/2b2Rr1/2K4k/3Q2nb w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 d5 a5 g5 a6 e5 a7 g3 c5 e3+ Kc2 b3+ Kb2 e2 c6 Kg4 c7 d3 f5 b4 f6 g2 f7 Kg3 Ra5 e1B Nh3 g1N Qc2 d4 Ra3 e4 Qc4 e3 Bd2 e2 Ra4 Ne7 Qd5 Bg7 f8N Qd6 Bg2 Bb7 c8Q Ng6 Qcc5 Na6 Rh2 Rh6 Nd7 Rg8 a8Q Nf8 Be3 d2 Qa5 d1Q Nf4 d3+ Qe5 d2 Qe8 Bc6 Bf1 Bh1 Nb6 Bf2 Bd4 e1B Qf7 Qh5 Bc5 d1B Bb5 Bd4+ Nc3 Bh8 Qee8 Bdg7 Re2 Bd2 Re3+ Kh2 Nc8 Be1 Kb1 b2 Ra3 Ba4 Ne7 Bd2 Ne4 Bdc3 Ka2 b1R Qb8 Rb3 Be8 Rb2+ Ka1 b3 Qab5 g4 Qd8 Rg2+ Kb1 b2 Qbb8 Rg3 Re1 Nh7 Rb3 Nf8 Kc2 b1R Re3 Bgf6 Qd7 Rgg6 Qdd8 Bfg7 Rf3 Qc7 Qd1 Rb6 Re3 Qd6 Rf3 Bc6 Rb4 Rb3 Rb5 Rb7 Rb6 Ba4 Rc6 Qc7 Rg6 Qd6 Re6 R3b6+
1n1kr2N/B4bQq/1R5B/5qN1/b2b1pR1/n1qr1Q1N/1B3P2/nK2nnb1 w - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 d5 h5 d6 hxg4 Bg2 e6 Bd5 exd5 Kd2 g5 Kc2 c5 h4 f5 a4 b5 e4 g3 h5 c3 h6 c4 e5 f4 h7 g2 a5 g4 a6 d4 a7 g3 e6 Bg7 e7 Qa5 Bb2 d3+ Kc1 d2+ Kc2 Bd4 Qf1 d1B+ Kc1 b3 Na3 c2 Qe1 b4 Nb5 Nf6 Ne2 g1B Rh5 g2 Ra3 Nd5 Qf1 Be6 Qe1 Ne3 Nbc3 Bf7 Rg5 Qf5 Rg4 Nf1 Ra6 Kd7 e8N Kd8 d7 Rg8 Nc7 Re8 h8B Re3 Rb6 Rd3 N3d5 Qh7 Bc3 Qf5 Kb2 c1N Kb1 b2 Ne7 Nb3 Ng6 Na1 Bg7 Ba4 Nh8 Qh7 Bh6 Qf5 Ka2 b1N Bb2 Na3 Qd2 c3+ Ne6+ Ke7 Qe3 c2 Qe5 c1Q d8B+ Ke8 Be7 Qc3 Bc5 Kd7 Qd5+ Ke8 Ng5 Qh7 Qc4 Kd8 Qb3 N3c2 Kb1 Ne1 Qe6 b3 Qe5 Qf5 Bba3 b2 Qg7 Bh2 Ng1 Qh7 N1h3 g1Q Rb4 Qh1 Rb7 Qd5 Rb6 Bg1 Bd6 Nc6 Bdc5 Rb8 a8Q Qdf5 Qb7 Rc8 Qa8 Nb8 Qg2 Rc7 Qf3 Re7 Re6 Re8 Ba7 Bh5 Rb6 Bg6 Ka2 b1N Bc1 Na3 Bb2 Nc4 Kb1 Bh5 Ne4 Bf7 Neg5 Na3+
1BnK3k/R1n5/b2NBRn1/BN1Q4/1qQ1P1rb/2b2q2/2R1qrqp/q4n2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 f5 d4 Kf7 g4 Kg7 e4 b5 a4 c5 a5 b3 g5 b4 a6 b2 g6 c3 a7 c4 d5 h3 d6 h2 d7 b3 Bg2 h4 Ra2 c2 Bf1 c3 Qd2 h3 Bb5 Bb4 Ba6 Qg5 d8B Ne7 Qf2 Qg2+ Ke2 f3+ Ke3 f4+ Kd4 Rg8 Ke5 Kh8 Bc4 Ba6 Kf6 Nc8 Be3 c1B Qe2 f2 Qg4 f1N Qd7 f3 Qd4 c2 Be7 f2 Bf4 Bc3 Na3 b1Q Bb4 b2 Be6 Qa1 Ba5 b1Q Ne2 Qb4 Ng3 Rg7 Rg1 h1Q Nb5 h2 Nf5 Qf3 Qe5 Qhg2 Nfd6 B1d2 Rh1 c1N Rc2 Nd3 Qd4 Ne5 Qd5 Be1 Rg1 Rg8 g7+ Kh7 Rh1 Ng6+ Kf7 Nd7 Rg1 Ndf8 Ke8 Rb8 a8R Rb6 Bg4 Ne6+ Kd7 Rc6 Ra7 Nc7 Be6 Rc5 Qc4 Rf5 Bg3 Rf4 Rh1 Rg4 Qd5 Rf8 g8Q+ Kh6 Qc4 Rf5 Qd8 Kg7 Qg5 Kh8 Kd8 Nd2 Rg1 f1Q Bf4 Rf6 Qgd5 Q1e2 Rf1 Bh4 Rf2 Nf1 Bg3 Qfe3 Rf5 Rf7+ Rf6 Q3f3 Nb7 Na8 Bb8 Nc7 N7d6 Qf5 Qb7 Rg5 Qbd5 Qfh3 Rf5 Rg4+ Rg5 Rf6 Re5 Rf2+ Rg5 Nce7 Rf5 Nc8+ Rf6 Qhf3
n7/1RB1k3/2b2b1R/qbK3QB/1Q1PnN1n/2N1br1r/n1b3qp/1R2rB2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 e4 c5 d4 f5 g4 b5 a4 f3 Ke3 f2 g5 c3 g6 c2 a5 b3 e5 h3 g7 h4 a6 h2 e6 b2 a7 h3 e7 b4 Ba6 f1N+ Kd3 c4+ Ke2 c3 Kd3 b3 Kc4 f4 Bb5+ Nd7 Qg4 f3 Ra2 f2 Kb4 Ne3 Qd1 f1Q Qg4 Nf6 g8B Ng2 Bc6 Bg7 Bgd5 Nh4 Na3 b1B Qf4 b2 Qf2 Qg2 Bf3 Ne4 Ne2 Ba6 Ra1 Bf6 Qe3 Bb5 Nf4 Qb6 Bd2 c1N Be2 c2 Bf1 Rb8 a8Q Rh7 Qb7 Na2+ Kb3 c1B Ba5 B1d3 Nb1 Bc2+ Ka3 Kf7 Nc3 Rf8 e8R Rh5 Rd8 Ke7 Rb8 Qa6 Qg3 Be3 Qg5 b1R Bd5 Rh6 Bf7 Re1 Rb1 Qb6 Be8 Qc7 Bg6 Nb6 Bh5 Na8 Qb6 Rh7 Rb7 Rhh8 Rg1 h1B Qbc5+ Kd7 Qb4 h2 Bb6 Qh3 Rg3 Qg2 Rh3 Rf7 Rb8 Qc5 Bc7 Ke7 Rb7 Rg7 Qf5 Rg3 Qg5 Rf3 Bf7 Nf5 Rh6 Nh4 Bh5 Rg8 Qf5 Rgg3 Qg5 Rh3 Qg3 Bc4 Nb5 Nf2 Rb8 Qg1 Qg5 Rfg3 Rb7 Bc6 Nc3 Ne4 Rb3 B6d5 Ka4 Rf3 Rg6 Qg2 Rh6 B2d3 Rb1 Bc2+ Qb3 Qb6 Ka3 Bb5 Qb2 Nc1 Kb4 Bdc6 Qb3 Ng3 Qa4 Qa5+ Kc5 Na2 Qb4 Ne4+
n2N1q1N/1Q1Nr3/4q2R/3RB1Rb/2np2bb/b1q5/1rPrb1K1/k2B1q1Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 h4 Ke5 e4 f5 a5 g5 h5 b5 h6 d5 a6 g3+ Kg2 g4 a7 d3 h7 Kd4 e5 d2 e6 b3 e7 b4 e8N b2 Na3 Kc3 Nd6 b1R Qe1 d4 Qe4 d1B Qb7 b3 Qb5 b2 Qa4 Nf6 Bb5 f3+ Kf1 g2+ Kf2 g3+ Ke1 f4 Qa6 Ne4 Nf7 Bg4 Qb7 Nd7 Rh4 Nd2 Nc4 Ba3 Qb8 Qf8 Ra2 Nb6 Ncd6 Ndc4 Nh3 g1B Kf1 f2 Qc7 Re8 a8Q Re7 Qg2 Na8 Rh6 Bh5 Ba6 Bdg4 Nhg5 Bh2 Qgc6 Rg8 Kg2 f1B+ Kh1 f3 h8R f2 Bf4 Rg6 Nd8 Bfe2+ Kg2 Rd1 Qd5 b1Q Nc8 Rb6 Rg8 Qb3 Ngf7 Rd2 Be5 Rb5 Ra1 Kb2 Nb6 Qc3 Rg5 Bg1 Nh8 f1Q+ Kh1 Q1f7 Kg2 Bf2 Qcb7 Qe6 Nd7 Be1 Ra2+ Kb1 Rb2+ Ka1 Qe4 Rb6 Rb5 Bf2 Rd5 Rb2 Kh1 g2+ Kh2 Bef3 Qe1+ Bd1 Qh1 Bh4 Kg1 Ne3 Be2 Nc4 Bf3 Be2 Kh2+ Bf1 Bd1 Bfe2 Rgg6 Bgf3 Rg4 g1Q+ Kh3 Qf1+ Kh2 Qe1 Rg5 Bfg4 Kg2 Qef1+
RQr2R1B/B5K1/N3r3/qr3b2/P1k1b1B1/nnNb4/1rp3Qb/rq3R1n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kh5 b5 g4 f5 a4 c5 d4 h3 e3 b3 g5 f3 g6 c3 g7 b4 Ra3 f2 Bb5 f1Q Ba6 c4 Nf3 f4 Ne5 f3 Nd2 h2 Qe1 c2 Ra1 b2 Qe2 b1R Qe1 b3 Ne4 c3 Qe2 b2 Nc6 f2 Na7 Ne7 Kh6 Ng6 Nd6 Qa5 Nb7 Nc6 Ra3 Bf5 Nb5 Nge5 Nc5 Nc4 Bc8 Bd6 g8R Ra6 Kg7 h5 Ra2 Qe1 Rf1 h1B Ra1 Rb6 Na6 h4 Qg4 Bf3 Qg2 Na3 e4+ Kc4 d5 h3 e5 h2 e6 h1N e7 Nd4 e8Q B3e4 Be3 Bh2 d6 c1R d7 c2 d8B Nb3 Nc3 Re6 Ba7 Rd1 Bdb6 Rd5 Bd4 Rb5 Bd7 Rc1 Rf8 b1R Qb8 Rb2 Rg1 f1B Rb1 Bfd3 Rf1 Rc6 Bf6 Rc8 Be5 Rh6 Bed4 Bh3 Bg4 Re6 Be5 Ra2 Rb2 Rca1 Rb1 Rb2 Rd1 Be2 Rdd8 B2d3 Bd1 Rg6+ Kh7 Nc1 Qa8 Rcc6 Bh8 Bhf5 Bg4 Rge6+ Kg7 Nb3 Qb7 Qb1 Ra8 Rcc5 Qb8 Rc8
1qN2b2/4nK1n/Q2QN1B1/3R1np1/1q1R1q2/nQ2Nq1P/6rk/Bq1b1r1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Ke6 a4 Ke5 c4 d5 c5 g5 a5 b5 c6 f5 c7 f3 Kg3 d3 a6 f2 a7 f4+ Kg2 b3 Qe1 g3 Kf3 d2 Ra6 d1N Bd2 b4 Bd3 f1R+ Qf2 d4 Bc3 b2 Ra2 b3 Be2 g2 Bd3 Nc6 Ra6 Ne3 Ra4 Nf5 Kg4 f3 Nd2 b1N Qe3 f2 Nh3 b2 Nf4 Na3 Ne6 b1Q Ba1 Qb4 Qh3 Bb7 c8N Nce7 Qf3 Rb8 a8Q Rh7 Qa6 g1Q+ Qg2 Rh3 Bc2 Rg3+ Kh5 Bc6 Qf3 Rg2 h3 Bd5 Qa8 Bb3 Qa6 Qdd6 Bb1 Bd1 Bd3 Ra8 Bc2 Qdb8 Nc4+ Kf6 Ne3 Ke5 Bb1 Qh2 Bd3 Qf4 Rh2 Rh1 Bc2 f1Q Bb1 Nd5 Kg6 Ndf6 Kf7 Nge7 Qg3 Qf3 Bc2 Rgg1 Rd2 Rf1 Bd3 Nh7 Bb1 Qb2 Qh2 d3 Rd4 Ba4 Rd1 Q2b4 Qb2 d2 Qb3 Ra7 Rd8+ Nd4+ Nf5 Rd7 Qc3 Qh4 Nc5 Kf4 e5 Bb3+ e6 Nd5+ e7 Rd6 Ne3 Kg3+ Bf5 Kh2 e8Q Qhf4 Qec6 Ne7+ Ne6 Ba4 Qcb6 Rc6 Qb2 Rc2 Rd5 Bb3 Qd6 Ba4 Rc1 d1Q Qa2 Rcf2 Rc4 Qdb1 Qb2 Bd1 Qb3 Ne2 Rcd4 Rg2 Rb5 Ng3 Rbd5 Nf6 Bh7 Ngf5 Bg6 Nh7
2k1rB1Q/3b1q2/1Rb3NR/bB3pqQ/1Pnb1N1q/3rNr2/1rr2Rn1/7K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 f5 e4 a5 c4 d5 g4 Kd7 Kg2 h5 e5 h3+ Kh2 f3 b3 a3 c5 d3 g5 a2 g6 f2 g7 d2 Qe1 d1Q Be3 a4 Bb5+ Nc6 Nd2 f1R Nb1 a3 Ne2 d4 Qg3 d3 Bg1 h4 Qg6 d2 Nd4 Qg5 Bf2 Ne7 g8Q Qdh5 Bg3 d1R Nf3 Nd5 Qh6 Rb8 Nbd2 Ne3 Qgg6 Ng2 Ne1 Rf3 Nc4 Rdd3 Rb1 a1B Ne3 a2 e6+ Kd8 Rb2 Bd7 e7+ Kc8 Bd6 Ne5 c6 Nc4 Rf2 Bd4 c7 a1R Bb4 Rg8 Qh8 Ra2 Kg1 Qh7 Qh5 Rc2 Kh2 Qf7 e8R+ Qd8 Ba3 Bb4 Re6 Re8 Rb6 Ba5 Bf8 Qg5 Kg1 Rdd2 Nd3 h2+ Kf1 h3 Nf4 Rd3 b4 Ra8 Rg1 h1B Rh6 Kb7 c8N h2 Ne7 Rad8 Neg6 Kc8 Ned5 Ree2 Ne3 Re8 Nh4 Ne1 Rb6 Rb2 Nhg6 Rec2 Rg2 Rg3 Rg1 Bhc6 Rgg2 h1Q+ Rg1 Qf3 Rh1 Ng2 Kg1 Qfg4 Rh2 Q4h4 Kh1 Qgf6 Qd1 Qhg5 Rh6 Q6e7 Qg4 Rf3 Qh5 Qe4 Ne2 Qeg4 Nef4 Q4h4+
3Kr1n1/r4b1k/6q1/2bpRQ2/Br2b1r1/q1BQN1Qn/1rq3PN/2B2Rq1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Kg6 c4 b5 a4 h5 a5 d5 c5 e5 c6 h3 a6 e3 Kf3 e2 a7 e1R f5+ Kh7 c7 d3 f6 b3 f7 h4 Nd2 e4+ Kf4 e3 Ke5 h2 Nc4 b4 Ra5 h3 Bd2 e2 Ra3 b2 Rc3 b1Q Ra3 b3 Bh6 b2 Be3 d2 Bb6 Qg6 Ba5 b1B Rc3 Na6 Nb6 Bc5 f8B Be4 Rg3 Nb4 Rc3 Be6 c8Q Bf7 Bh6 Qf8 Nf3 Rb8 Qb3 d1Q a8Q Qc2 Qaa6 Ra1 Nc4 e1R Bc1 Re2 Ne3 Ra2 Rg1 h1Q Qf5 h2 Qd3 Rf2 Be2 Ra4 Re1 Qg1 Bd1 h1R Rf1 Rh4 Nh2 Rg4 Rc4 Rb6 Qbc3 Rb7 Qe1 Rff4 Qg3 Ra2 Rc3 Ra7 Ra3 Rb2 Ra1 Na6 Bc3 Nc7 Ra6 Qe7+ Re6 Qf8 Re7 Ne6 Re8 Ng5 Re7 Qe2 Ba4 Qc2 Re8 Nh3 Re7 Bb6 Re8 Qc5 Re6 Qa5 Kd6 Bc5+ Kc6 Ra6+ Kd7 Ra7+ Kc8 Qb4 Kd8 Qa3 Qe5 Bf5 Qf6 Rfb4 Re5 Be4 Qf5 Nf6+ Be8 Rf8 Bd4 Ng8 Bc3 Raa4 Kc7 Ra6 Ba4 Re8 Kd7 Ree6 Kc7 Ra7+ Kd8 Re8+
1n3NQ1/6r1/1q2q2n/n1Np2rB/1b1bQ3/B1PR1Rbk/b1Rr4/2Kn1N1b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 e4 g5 h4 f5 a5 b5 h5 b3 a6 g3 c3 d3 h6 g2 h7 b2 e5 f3 a7 f4 Rh6+ Kf5 e6 Kg4 e7 b4 e8R b3 Rhe6 Bb7 Qe2 Bb4 Qe4 f2 Rf8 Qf6 Rfe8 Nh6 Na3 b1Q Nh3 g1B Rg8 b2 Re5 Qe6 Nb5 Bh2 Rf5 Bg3 Rgf8 Rg8 h8N Rg7 Qc6 f3 Kd1 d2 Bc4 f1N Nd4 f2 Rf3 d6 Rd8 Ne3+ Ke2 f1N Ra2 d1R Ng6 Nd2 Nf8 Nb3 Nc2 Na5 Nf4 Kh4 Rd7 g4 Nd3 Kh3 Nc5 Rd4 Qc8 Nd1+ Ne3 Rd5 Qc6 Rdg5 Kd2 Qbg6 Nf1 b1B Rb2 Ba2 Be2 Qgf6 Qd5 Qd8 Qd3 Qb6 Rc2 Bbd5 Ba3 Be4 Re3 Bh1 Kc1 d5 Rf7 Na6 Qc4 Re8 a8Q Nb8 Rff3 Ree7 Rd3 Ref7 Rfe3 Rf2 Bf3 Rd2 Qe4 Bf4 Qh7 g3 Qe4 g2 Bh5+ Bg3 Rf3 g1B Nh2 Bd4 Nf1 Na6 Qe8 Nb8 Q8g6 Re7 Qg8 Reg7
Q1n1Bq1N/b1B1rrq1/1R2b3/n2pQPnk/N2R1q1B/7N/bn1b2K1/3b4 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 Kg6 Kf2 b5 c4 e5 h4 d5 c5 b3 a5 d3 c6 e3+ Kg2 e2 f5+ Kh5 a6 e1B c7 g5 a7 d2 Ne2 e4 Nd4 e3 Rg1 e2 Kh1 g3 Ra3 g4 Nc6 g2+ Kh2 b4 Bb2 g3+ Kh3 Ne7 Be5 b2 Bg7 b3 Bf6 Be6 c8N Rh7 Ne5 Rf7 Nd3 Nbc6 Ra4 Na5 Nc3 b1Q Nd6 b2 Nf2 Qc1 Rd4 b1B Na4 Nc8 Be7 Rb8 a8Q Rb7 Qc2 d1B Qe4 Qg5 Qe5 Qf4 Rh1 g1N+ Kg2 Ra7 Nh3 Ba2 Bf6 Rfe7 Nf7 Nf3 Nh8 Ng5 Rg1 Bd2 Rh1 Kh6 h5 Bg7 Rh2 Qf8 Rh1 Rf7 Bd8 Rae7 Bc7 Kh7 h6 e1N+ Kg1 g2 Bb5 Nd3 Be8 Bf6 Rh2 Nb2 Rh1 Kg8 h7+ Kg7 Rh2 Kh6 Rh1 Bf3 Kf2 Kh5 Rb1 Bd1+ Kg1 Nbc4 Rb6 Bg7 Ng6 Nb2 h8B Bf6 Bg7 Qg3 Nh8 Qf4 Qe3 Be5 Bf6 Bd6 Qe5 Bc5 Rb7 Ba7 Rb6 Ne4 Bh4 Ng5 Qf6 Bf3 Qg7 Bd1 Qe5 Ne4 Nf2 Q4h6 Kh2 g1Q+ Kh3 Qgg7 Kh2 Qe3 Nh3 Ng5 Kg2 Qf4
2r2bb1/1r6/7B/1rPbrr1p/R2n1q1Q/7R/NQBnnNbR/3qk1KB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 g4 Ke6 e4 Ke5 c4 f5 a4 d5 c5 b5 a5 h5 a6 b3 g5 b4 a7 h3 g6 h2 g7 f3 Bh6 d3 Qc1 Kd4 e5 b2 e6 f4 e7 b3 e8Q d2 Ne2+ Kd3 Qe1 d1Q Qf7 d4 Na3 b1R Qe8 b2 Qe7 Qc7 Qd8 Nc6 Qe7 Be6 Nb5 Nf6 g8R Rc8 Bh3 Ne4+ Kf1 f2 a8B Nd2+ Kg2 f1B+ Kf2 f3 Bg4 Qf4 Qa7 Bg2 Rg1 h1B Rg7 Bg8 Qb8 Kc2 Re7 d3 Bf5 Nd4 Ng3 Rh7 Re5 Re7 Re2 Re5 Ra4 Kc1 Rf1 Kc2 Kg1 f2+ Kh2 B2d5 Nc3 Bhg2 Rh1 f1R Na2 Bh3 Bd7 Qc1 Bg7 Bde6 Bf6 Qe3 Ra5 Rff5 Be8 Qf4 Be4 Bd5 Bg5 Bf1 Kg1 Bh3 Re3 Nf1 Bg2 d2 Bh6 d1N Rh2 Nd2 Bh1 Nc3 Ne4 Bf1 Qf2 Kd1 Reh3 Bg2 Qh4 Qc2 Nf2+ Ke1 Qb7 Qd1 Bd7 Ra1 Be8 b1R Ba4 Rb3 Ra6 Rab1 Qb8 Rb4 Bc2 R4b3 Qb4 R3b2 Qa3 Rb7 Ra4 R1b5 Qb2 Nce2#
N2RQ3/rRb1n2Q/2b1Q3/PB3qB1/b2n2B1/1pNrq1k1/1Kn5/nrr2r2 w - - 0 1 illegal: No possible last move, all moves rejected
2b4r/BK5N/3B2b1/PRQr1qrN/Bqpb2n1/5n2/3k1rr1/1QNbR2q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 c3 Kf3 Ke7 Ke4 Ke6 g4 b5 d4 h5 a4 f5+ Kf3 Kd5 g5 Kc4 d5 c5 d6 h3 g6 c2 d7 h4 g7 h2 Bh3 b3 e4 b2 e5 b4 e6 b3 e7 Nh6 e8Q Qe7 d8B Ra5 g8N Bg7 Qg6 Nc6 Nd2+ Kc3 Qg3 b1B Bg4 b2 Qf2 c4 Qdf1 h3 Nb3 Ne5+ Ke2 f3+ Ke3 Rd5 Q2g2 f2 Qd1 f1R Nf3 Rg1 a5 Qd7 Qf2 f4+ Ke2 Qb7 Be3 c1R Bd7 Bg6 Ba7 b1Q Bc7 Qf5 Ng5 f3+ Ke3 Rc2 Nh7 Rg5 Re1 h1B Ba4 h2 Ngf6 Rb2 Qg1 f2 Bd6 f1R Nh5 Bf3 Rb1 Rbg2 Rb2 h1Q Qb1 Be2 Nc1 Nf3 Qf2 Qb3 Qg1 Qa3 Rb5 Bd1 Qf2 Qb4 Qg1 Qd7 Qf2 Ng4+ Kf4 Rdf5+ Ke4 Be5 Qc5 Rff2 Kd5 Kd2 Re3 Qe6+ Kc6 Bd4 Re1 Rd5 Kb6 Qf5 Kc7 Be6 Kb7 Bc8+
kq2bn1n/bb6/2BB1Q1R/prQ1b1Pq/KN4bN/3r1n1R/B6r/3Nn3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 e4 a5 g4 f5 c4 d5 Kc2 Kd7 b4 Kc7 g5 Kb7 c5 h3 e5 a3 Kb3 h2 b5 f3 e6 a2 b6 f4 e7 h4 e8B d3 Ka3 d4 Qd2 f2 Bd7 h3 Ba4 f3 Qe2 d2 Bb2 d1N Qc2 d3 Nc3 d2 Be8 Nh6 Bh5 Bg4 Rc1 a1B Bf7 Nd7 Qg6 Ne3 Be8 d1R Qd6 Rd3 Qe6 Qb8 Bf7 Ng2 Rd1 Ne1 Bg2 f1N Qf5 Nd2 Ba2 Nf7 Qf6 Rh6 Rc1 Nh8 Ka4 Ra7 c6+ Ka8 c7 Rb7 c8Q f2 Rd1 f1B Ba3 Bc5 Nf3 Nf8 Nh4 Ndf3 Rd2 Bf2 Nd1 Be5 Bd6 Be2 Qcf5 Bh5 Rc2 Be8+ Rc6 Rh5 Qg4 Rh6 Qb4 Be3 Qc5 Rh5 Rg1 h1B Rf1 h2 Rf2 Ng1 Rf3 Bf2 Rh3 Bg4 Bgd5 Ngf3 Be4 Bg2 Bed5 h1Q Be4 Rb3 Bd5 Rb5 Be4 Rd7 Bed5 Qc7 b7+ Kb8 Rg3 Re7 Nf5 Bc3 Qc4 Nhg6 Qf7 Nd4 Bf4 Nh8 Rh6 Re3 Bd6 Rd3 Qf6 Be4 Qc6 Ndf3 Qc4 Ka7 b8N Be5 Na6 Qb8 Nb4 Bb6 Qc5 Rh3 Bg8 Bb7 Bgd5 Ka8 Bc6 Ba7 Rg2 Qg1 Rh2 Qg3 Rh1 Qh4 Rh2 Qh5 Nh4 Rg3 Rh1 Rg2 Rh3 Rh2
3b1n1q/k2B2n1/1q3rPB/3q1N1N/1pB2rN1/2Q1bRQ1/bR5b/nnK2b2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 g4 b5 f4 d5 a4 Kd7 c4 Kc6 a5 Kb7 c5 e5 a6+ Ka7 c6 h3 g5 b3 c7 b2 g6 h4 f5 h2 f6 e3+ Kc2 e2 f7 e1B Bd3 h3 Nd2 b1N Qh5 b4 Be2 d3+ Kd1 d4 Qh7 e4 Qh6 e3 Qf4 Bf2 Qd6 Be7 f8N Nd7 Bg4 Nh6 Qd5 Nf5 Bf3 Ng7 Nc4 d2 Qe4 e2+ Kc2 e1B Ne3 d1B+ Kb2 d3 Ne6 d2 Ra4 Nf8 Qd3 Be2 Nd4 Bf1 Bg4 Rh4 Nge2 Be6 c8Q Qb6 Ra3 Bd8 Ndf5 Ba2 Neg3 d1N+ Kc2 Bg1 Qcc3 Bef2 Nh5 Rc8 Rb3 Rc6 Rb2 Rf6 Be2 Re4 Ng4 Rf4 Qg3 Bd4 Bd2 Ne3+ Kc1 Nc2 Bc4 Na1 Be3 Be5 Bd2 Be3 Rg1 Ka8 a7 h1Q Rg2 h2 Rf2 Kb7 a8B+ Ka7 Bc6 Qd5 Bd7 h1Q Rf3 Rd4 Nf4 Qh8 Nh5 Bec7 Qf2 Bh2 Qg3 Bf2 Bg5 Rf4 Bh6 Be3+
b1Nk1r1b/3q4/1n2Knp1/n3QB2/1n1BnP1N/bRQ3q1/1qrQ3b/1R5B w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 a4 d5 f4 b5 h4 g3 c4 e3 Kd3 g2 a5 b3 c5 b4 a6 g6 h5 e4+ Ke2 d3+ Ke1 e2 Kf2 e1B+ Ke3 d2 Kd4 b2 Ke5 d4 c6 e3 a7 e2 c7 b3 h6 d3 h7 Na6 Ra4 Nf6 Ra2 Bb7 c8Q Nb4 Nf3 g1B Nh4 Bh2 Qcc2 Rc8 a8B Qd7 Nf3 Kd8 Nc3 b1N Nh4 b2 Nf3 Na3 Ne4 b1Q Nc5 Qb2+ Qc3 Rc6 Qb3 d1N Bh3 d2 Bf5 Ne3 Qc2 d1N Qd2 Nf2 Nh4 N2e4 Na4 Ned5 Nb6 Be7 Rg1 Rf8 Nc8 Nb6 h8Q Bf2 Rg3 e1Q Ra1 Qg1 Rh3 Qg3 Rb1 Bec5 Qe2 Rc7 Be3 Be7 Qd2 Bd6+ Kd4 Nac4 Qh5 Na5 Qh8 Be7+ Ke5 Rc6 Bd4 Be1 Qcd3 Rc2 Q3c3 Ba6 Bc6 Bb7 Qg7 Ba8 Qh8 Nf2 Bh1 N2e4 Qh5 N4d5 Qh8 Ba3 Qg7 Nb4 Qh8 Qb7 Ke6 Qg7 Qh5 Qd7+ Ke5 Bf2 Qhe2 Nfd5 Qb3 Qg5 Bc3 Nd6 Rd3 Qg3 Qee1 Qb7 Ke6 Bd4 Re3 Be5 Bd4 Bh8 Rc3 Nf6 Qe5 Qa7 Qc4 Qg7 Rb3 Nde4 Qcc3 Qd7#
1NrnqB1Q/1Q1rb3/1Kb1nP2/1R1n1BR1/2r1r3/5qp1/N2kq2Q/1R1r2q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1Q h5 d3 h6 e3 a5 Ke4 h7 e2 f5 g3 f6 g4 a6 d2 a7 Kd3 Nc3 g2 Ra3 g3 Ra6 d4 Nh3 g1Q Ra3 Qe8 Ra4 Be7 Nb1 Nd7 Rh2 Nf8 Ra3 Ne6 Ra5 Bd7 c8Q Nh6 Ng5 Bc6 Bb2 Nf7 Nh3 Nfd8 Qb7 Rc8 a8R Qh1 Ng5 Qf3 Qc1 d1N Ba3 Ne3 Bh3 Rg8 h8Q Rg7 Qc5 Qg1 Qd5 e1Q Rb8 Qee2 Nc3 Kd2 Na2 d3 Nh7 Rg4 Qc5 Rc4 Nf8 Re4 Nd7 Rc4 Kb2 b3 Qch5 b4 Rg5 Re4 Rf2 Rc4 Rf1 Re4 Kb1 b2 Bf5 Rc4 Qh2 Re4 Nc1 Rc4 Ka2 b1R Re1 Ra1+ Kb2 b3 Na2 Rd1 Bc5 Re4 Ka3 b2 Bd6 Rc1 Bc5 Rcc4 Rb1 Kc2 Bb4 d2 Bd6 d1R Bb4 Bd5 Ka4 Bc6+ Ka5 Rd6 Ba3 Kd2 Kb6 Rd5 Ra8 Rd3 Ra5 Rd5 Nb8 Rd7 Ra1 b1R+ Rb5 Rf1 Rab1 Rd1 Bd6 Bf8 Be5 Ba3 Bd6 Bb4 Bf8 Bd6 Bg6 Be7 Bf5 Nd5+
1Kr2n1n/2BBrq2/2b1qpPQ/5krb/1n2Nr2/NQ3N2/3R1Rrb/5Rb1 w - - 0 1 illegal: No possible last move, all moves rejected
1r2Qbk1/q4b2/b3P3/1n1Qrnnq/1N1nb3/2p2R1Q/R3B2R/1rBKn2N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 c5 a4 f5 e4 Kf7 g4 b5 e5 h5 d5 f3 d6 f2+ Ke2 c3 d7 c2 g5 c4 a5 f4 a6 h3 a7 h2 Ra2 f3+ Kd2 h4 Be2 f1B Rb2 h3 Ra2 f2 Na3 b3 Nf3 b4 Nh4 b2 Nf5 b1N+ Ke3 b3 Ne7 b2 Bd2 c1N Ng6 c3 Nc2 Rh5 Na1 Qe7 d8R Ba6 Ra5 Nc6 Rd3 Nh6 Nf4 Nd4 g6+ Kg8 g7 Rb8 a8Q Nf7 Qa7 Na3 Qd7 b1R Nc2 Ng5 Nb4 Nab5 Ra2 Bg2 Qe8 Be4 Qf1 Qa7 Qg2 f1Q e6 Bg6 Qd5 Qd1 Kf2 Bf7 Rf3 Nd3+ Ke3 Nh7 Bc1 Ne1 Nfd3 Rf5 Nf2 Ng5 Rg1 h1N Rg2 Ng3 Nh1 Re5+ Kf2 Kh7 Rh2 Ngf5 g8Q+ Kh6 Rg2 h2 Qh8+ Kg6 Qh3 Kg7 Ng3 h1B Rh2 Bg2 Nh1 Kg8 Re3 Be4 Rf3 Qd2 Kf1 Qf4 Kf2 Qg4 Kf1 Ng2 Kf2 Qh5 Kf1 Nf4 Ke1 Nd3+ Kd1 Ne1
1Q1r3q/2Bb4/Q2BP2r/QNK4R/1bp1q3/r1R3N1/2nkbr1n/rBbn4 w - - 0 1 illegal: No possible last move
r4BBb/qQR1QK2/3p1r2/1b5B/n1Pq3k/1bqbq1R1/1Q2Nq2/nN5n w - - 0 1 illegal: No possible last move, all moves rejected
4rkB1/qr1q1b2/NBrpR1b1/K1Q1Pb1r/3br2Q/R1Q4B/5nN1/4q2n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 e4 f5 g4 h5 c4 d3 a4 b3 Kc3 d6 Kb4 d2 g5 b2 c5 h3 a5 f3 a6 h2 c6 h4 a7 h3 g6 f4 g7 f2 c7 f3 Be2 f1R Ra4 f2 Nc3 b1B Ra2 Nc6+ Kb3 b4 Ka4 b3 Qc2 d1Q Nb5 b2 Bf4 Rh5 Qb3 Ne5 Bc1 Qd7 Be3 Ne7 g8B Ng4 Qc2 Qd4+ Ka5 Re1 Ra4 f1Q Bd3 Nf5 Qc5 Ng3 Bc2 Nf2 Bh6 Bg7 Ne2 Kf8 Be3 Be5 Rg1 h1R Ra3 h2 Nf4 Re2 Qc3 Qe1 Ng2 Rb8 a8Q Qa7+ Kb4 Bh8 Bb6 Bd4 e5 Re4 Bcb3 Rb7 Bbe6 Ba2 Bh3 b1B Rf1 Bf7 Qb8 Nd1 Rf6 Nf2 Re6 Rf1 Qa8 h1R Qb8 Rh2 Qa8 Rh8 Qb8 Ngh1 Qa8 Qb8 Qa4 Rg1 Ka5 Bc2 Bg4 R2h5 Bh3 Bb1 Na7 Bd3 Nc6 Rf1 Nb4 Qa7+ Na6 Rg1 Nf4 Rg3 Ng2 Bc2 Qd2 Rc3 Qe3 Rc6+ Qc3 Rg4 Qab4 Bcg6 Qa4 Re4 Qab4 Qe7 Qbc5 Bd7 c8Q+ Qe8 Qd8 Bc8 Qg5 Bd7 Rf6 Bdf5 Re6 Qd7 Qh4 Kg7 Bh7 Re8 Bg8 Kf8
b1r4q/KNR1qk1B/2P1RBn1/2r2r1B/4r1Qb/4p1bq/4b1Qb/N1Q2n2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 b5 f4 g5 c4 b3 f5 d3+ Ke3 g3 a5 d4+ Kd2 g2 f6 e3+ Ke1 g4 a6 g3 h5 e2 Kd2 e1R a7 e4 c5 b4 c6 b2 h6 b3 h7 Qe7 Ra4 Nd7 Qg4 Ne5 Qh5+ Ng6 Ra6 Bb7 Nc3 b1Q Nf3 g1B Qg4 b2 Rh6 g2 Be2 Bf2 Nb5 Rc8 a8B g1B Ra7 Bh2 Bd1 Re3 Ne1 Bh4 Nc2 Kf7 Na1 Qa2 Bf3 b1R+ Bb2 Rf1 Be2 Rf5 Nd6+ Ke6 f7 Qa3 Qg2 Nf6 Bh5 Ng4 Bc3 Bg7 f8Q Bge5 Qg7 Beg3 Bb2 Rhf8 h8Q Rc5 Bc3 Rff3 Qhf8 Re1 Qf4 Ne3 Qg5 Rff5 Qg4 Ba6 Rc7 Bb7 Qg8+ Kf6 Qc4 Qb3 Bb2 Kg7 Qc3 Qg8 Qc1 Qh8 Nc4 Kf7 Na5 Ref1 Bc3 R1f4 Bb2 Ba6 Bb7 Nf1+ Kd1 d2 Bc3 e3 Kc2 d3+ Kb3 Ke6 Bf6 d1Q+ Ka3 Qf3 Kb3 Bc4+ Ka4 d2 Ba6 Re4 Nb7 d1B+ Kb4 Bb5+ Ka5 Kf7 Kb6 Bde2 Ka7 Bbd3 Bb5 Bc4 Ba4 Bb5 Bc2 Ba6 Qg1 Qg2 Bb1 Qh3 Qg2 Bd6 Bd3 Bdg3 Qe1 Re6 Qc4 Rf3 Na5 Bb7 Be5 Ba8 Nb7 Rf6 Qec1 Rf2 Bf3 Nf4 Bh5+ Kg8 Bh7+ Kf8 Rg6 Kf7 Bc3 Rf3 Qd4 Ree5 Re6+ Ng6 Qg4 Re4 Bf6 Rff5
3n1nNq/3R1br1/2pnQ1bN/Pn1B1r2/2KBB1n1/kr3qb1/6bQ/5RN1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 Kc6 Ke2 Kc5 g4 h5 a5 f5 g5 b5 e5 c3 g6 f3+ Ke3 b3 d4+ Kb4 Kd3 c6 e6 f4 e7 f2 e8Q c2 g7 h3 d5 f3 d6 b2 d7 h2 Bh6 c1N+ Kd4 h4 Qe5 h3 Qd5 Nf6 g8B Ne2+ Kd3 Ne4 Bg5 Ra7 Bh4 Nf4+ Kd4 Nd6 Bg2 f1R Qg5 f2 Ba2 Ne6+ Kd3 Rh7 Qdh5 Rg7 Qe8 Rb7 Nc3 b1B+ Ke3 Bg6 Qf6 Ka3 Rb1 b4 Rc1 b3 Bg3 b2 Qff7 b1N Be5 Rb3 Bf4 Ba6 Qg8 Bc4 Qh8 Qc8 d8N Nd7 Nf7 Nd8 Nh6 Bcf7 Kd4 Qa8 Nce2 Nc3 Be4 Be7 Rc2 Nf8 Ng3 Bh4 Ngf5 Bg3 Ne7 Ncb5+ Kc5 Qc8 Be3 Qg4 Neg8 Qf4 Ne2 Qf3 Rg1 h1N Qe6 h2 Bd4 Re1 Rb2 f1B Rd2 Bg2 Rf1 Nf2 Ng1 h1Q Rd3 Ng4 Rd1 Rbe3 Bad5 Rb3 Rd3 Rh7 Qhe5 Rg7 Qh5 Re2 Qh2 Rf2 Rd2 Qf6 Rdd1 Rf5 Rd2 Bh3 Rdd1 Qf3 Rd3 Bg2 Rd2 Nc8 Kc4 Qe5 Rdd1 Qb8 Rd2 Ncd6+ Kc5 Nc4 Bb2+ Ka4 Ne7 Qe5 Neg8 Rh7 Rd3 Qf6 Rdd1 Nce5 Bc4 Qh8 Rd7 Rg7 Bcd5 Nc4 Bf6 Ncd6 Bd4 Ne8 Kc4 Ka3 Qh1 Bh5 Qh4 Bhg6 Qh2 Ned6+
1bq2N2/4b1B1/1p3K2/N1P1Rn2/nr1k2br/1n1Nb3/1nqnQQ2/Q1Rq1B2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 e4 Ke5 a4 d5 c4 g5 h5 f5 a5 b3 a6 d3 c5 d4 a7 d2 h6 b2 h7 g3+ Kf3 g2 Bc4 g4+ Ke2 f3+ Kd3 g3 Rh2 f4 Rh1 f2 Be6 f1N Qc2 d1N Ra6 f3 Qd2 f2 Ra4 Nh6 Qc2 Nf5 Bd7 Bd6 Nd2 b1Q Bb5 Nd7 Ne2 g1B Nb3 g2 Nf4 Bh2 Na5 g1B Bb2 Rb8 a8Q Nd2 Rc4 Bg3 Rh5 f1N Ba1 Be3 Rc3 Rg8 h8N Nb3 Kc4 d3 Qf2 d2 Rc1+ Qb2 Kd3 Nb6 Nhg6+ Kf6 Rg5 Na4 Nf8 Ke5 Kc4 Rh8 Nd3+ Kf6 Kd5 Rh4 Ba6 Bd7 Qa7 Qc8 Bc4 Qc3 Qa8 Ndb2 e5+ Kf7 e6+ Kf6 e7 d1Q e8Q Nfd2 Qa6 Qcc2 Qa7 b6 Qh5 Ra8 Qhe2 Bge5 Rg4 Bb8 Re4 Bed6 Bb5 Be8 Ba6 Bh5 Re5 Rb4 Bc4 Bg4 Qa6 Ra7 Bb5 Rh7 Qa8 Qa6 Qa7 Rh4 Bc4 Kg5 Ke6 Qc8+ Qd7 Qb1 Nf4 Bdc7 Re4 Nc3 Bd5 Bd6 Nd3 Nbc4 Kf7 Qb2 Qa4 Qbc2 Qa3 Na4 Bg7 Ncb2 Re5 Re4 Qa1 Rf4 Ne1 Rb4 Bf3 Kf4 Kf6 Bh5 Bg2+ Bf3 Rd5 Ke4 Re5+ Kd4 Bf1 Bg4 Nd3 Be7+
N2r1qkb/rqQ2R1n/p1r1BR2/1Q2q1q1/5NnB/K1b3P1/2bb2B1/3R3b w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 f4 d5 b4 h5 c4 e5 Kc2 a6 Kb2 h3 g3 h4 f5 e3 c5 e4 c6 h2 f6 h3 b5 d3 b6 d4 c7 e2 b7 e1B Ka2 d2 Ne2 a3 Qa4 d1Q Qc2 d3 Ng1 d2 Bd3 e3 Bb5 e2 Qf5 Nc6 b8R Ne5 Qf4 Bg7 Qf2 Rh6 Qf4 Qf8 Nc3 Ra7 Rb6 Ng4 Bc6 Bf5 c8B Bh8 Bg2 Bc2 Nd5 Rg6 Bb2 Qc1 Nc7 d1R Na8 Bc3 Qc7+ Rd7 Rb7 e1B Ne2 Bed2 Rf1 h1Q Nf4 h2 Rf2 Qhf1 Rb6 Qb5 Re6 Qh1 Rd1 Qb7 Bc1 Qf1 Bb2 h1B Rc6 Qg7 Re6 Kf8 f7 Rd8 Rf6 Qh6 Be6 Qg5 Qc4 Kg7 f8Q+ Kh7 Qd6 Rh6 Rf8 N8f6 Rf7+ Kg8 Qb5 Nh7 Rf3 Qf2 Qc7 Qfc5 Rf2 Qf8 Rf3 Bf5 Kb3 a2 Ba3 Rg6 Be7 Bc2+ Ka3 a1Q+ Ba2 Qb1 Rf2 Rc6 Be6 Qe5 Rf3 Qfg7 Bh4 Qgg5 Nh3 Qc8 R3f6 Qb8 Nf4 Qb7 Qba5 Q1b6 Qa4 Qbc5+ Qb4 Qf8 Qc5 Qfh6 Qb5 Qf8+
1B2nn2/1kb1R2p/n3r1bN/3qR1Pn/qrQB1r2/1B1K1bNn/2r2Q2/3R4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 e5 f4 b5 g4 d5 a4 Kd7 c4 Kc7 c5 h3 g5 b3 a5 e3+ Ke2 d3+ Kf3 e4+ Kg3 d4 c6 b2 f5 e2 Kf4 e1R a6 e3 Ke4 e2 a7 d2 f6 d3 f7 h2 Qb3 d1N Be3 b4 Qc2 b3 Bf2 d2 Qd3 Bg4 Qf3 Nd7 Ra3 Bd6 f8B Rc8 a8Q Ngf6+ Kd4 Ne8 Qe4 Bf3 Nc3 b1R Qe6 b2 Ra5 Bf4 Ba3 Rf8 Ne4 Be5+ Kc4 Rf4 Bd4 Nf2 Nd6 d1Q Nf7 Nh3 Nh6 Nf8 Qa6 Bd6 Qe3 Qa4+ Bb4 Qd7 Qf2 Qe6+ Kc3 Qg8 Rf5 Qd5 Qd3 Kb8 c7+ Kb7 Ba5 Red1 Qc2 e1N Bc4 Nd3 Ne2 Nb4 Ba2 Rd2 Rd1 h1N Qb3 Ra8 c8R Ra6 Bc7 Ng3 Qc4 Nh5 Ng3 Rb6 Bb8 Na6 Rc6 Bc7 Re6 Rc2+ Kd3 Rd6 Re7 Rb6 Rf1 Re1 Rg1 Rb4 Bb3 Re6 Rd1 b1B Re5 Rc1+ Ke3 Bg6 Kd2 Rc2+ Ke3 Re4+ Kd3 Rf4+
q1n1nRQn/3q1p2/Qqb1kb2/4P3/4B1N1/qr2rr2/1nNRQKn1/2B2B2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 Ke7 c4 d5 a4 h5 g4 b5 c5 h3 e5 h4 a5 h2 g5 b3 c6 f3 c7 d3 g6 b4 g7 d2+ Kf2 h3 a6 d4 a7 b2 Na3 b1R Qb3 d1Q Qc2 d3 Qd2 b3 Ne2 b2 Qh6 d2 Qh5 Nf6 g8Q Qa4 Qgg4 d1N+ Kg3 f2 Ra2 Qdd7 Qg8 Nc6 Nc3 Ne8 Bd3 f1N+ Kf3 Bg7 Ne4 Bb7 c8Q Ke6 Nc2 Ne7 Qb8 Qa3 Bh6 Ng6 Qd8 Bf6 Qf8 Nfe3 Qg5 Ng2 Bg7 Bc6 Rg1 h1N Qd2 h2 Qe2 Ng3 Qc8 h1Q Qg8 Nf5 Qa6 Nfd6 Bh6 Nc8 Bc1 Rh6 Kg3 Nh8 Nf2 Rh5 Ng4 Rf5 Bg5 Rb8 a8B Rb3 Bc1 Ra1 Bb7 b1Q Ba8 Nb2 Bb7 Rh5 Kf2 Rh3 Rd1 Re3 Rd2 Qa5 Ra4 Raa3 Ba8 Qa1 Rb4 Qa2 Rb8 Qb6 Be4 Rbd3 Bb7 Rab3 Ra8 Qa3 Rb8 Nf4 Bg2 Rdc3 Bf1 Ng2 Ra8 Bb5 Be4 Bc6 Rb8 Ne7 Qab5 Ng7 Ra8 Bb7 Qbd3 Nf4 Rb8 Rh3+ Nge3 Bd5 Rd8 Nc8 Rf8 Ne8 Bh7 Qe4 Qb5 Ng2 Bg6 Qea4 Be4 Bc6 Qbd3 Qa8 Qa6 Rg3 Rd4 Rd3 Ng4 Rde3 Rd2 Rgf3+
2R5/b1QR1p2/bnqn2PQ/2r2q2/N4rqq/5n1r/2qkNQnB/1B2N2K w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 a4 Ke5 g4 Ke4 Kg2 d5 c5 h5 g5 b5 e3 f3+ Kh2 f2 a5 d3 c6 d2 g6 d4 c7 d3 a6 b3 a7 h3 Be2 f1Q Bb2 h4 Na3 b4 Rb1 Nh6 Rc1 Bc5 Nb1 Nf5 Rc3 Nd7 Qc1 d1N Rc2 d2 Bc4 Rh5 Bd4 b2 Ba2 Kd3 e4 b3 e5 Nde3 e6 d1Q e7 Qg4 Nc3 b1Q e8Q b2 Re2 Qc2 Bd5 b1N Nf3 Nd2 Qe1 Rb8 a8N Ba7 Nb6 Qe7 Nba4 Ba6 c8Q Rb4 Qb1 Qd8 Qc1 Qc7+ Be5 Qc6 Qe1 Ng2 Qg3 Qf2 Rd1 Nb6 Qf8 Qfc5 Qc7 Q5b5 Kg1 h2+ Kf2 h1Q Ba2 h3 Qh6 h2 Bb1 Qa5 Bd6 Rc4 Re8 Qe5 Qh4 Qf6 Bg3 Rf4 Rc8 Rg5 Re1 Rh5 Re7 Nd6 Ne2 Rc5 Rd7 Qff5 Qf8 Qc1 Qg7 h1R Qgh6 Rh3 Bh2 Qa3 Kg1 Qc3 Qg3 Qcf6 Kh1 Qfh4 Qe1 Ke3 Qf2+ Kd3 Qf1 Ke3 Ne1 Nf3 Qf2+ Kd2
n4k2/1B3p2/P1q1n1qr/4Bn2/1RN1bq2/2B2qnr/KQNNQ1b1/1q1Rb3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 c4 d5 Kc2 g5 Kb3 g3 h4 f3 e4 g4 a4 g2 h5 g3 h6 d3 c5 d2 h7 d4 e5 f2 a5 d3 e6 Qh4 c6 Bb7 e7 Nh6 c7 Na6 c8N Qf4 Qc2 d1Q Ra3 d2 Ra1 Qdf3+ Qd3 d1Q+ Ka2 b3+ Ka3 b4+ Kb2 Nc7 a6 Nf5 Bd2 Qc6 Nh3 g1Q Qc3 g2 Nb6 Qdf3 Be2 f1N Qd3 N1g3 Ra2 Qgc1+ Ka1 g1N Ng5 Nh3 Ne4 Ng5 Rd1 Nge6 Ra4 b2+ Ka2 Rc8 Nc4 Na8 Nba3 b1B+ Ka1 b3 Rb4 Rd8 Bc3 Rd6 Qd4 Bg7 Ned2 Be4+ Nab1 b2+ Ka2 Bf6 Nba3 Bh4 Qf6 Ng5 Qe5 Rh6 Nc2 Ne6 Qb5 Nf1 Qe5 Be1 Qd4 N1g3 Bd3 Rg8 h8B Rg7 Bf1 Rgh7 Bg2 Rh3 Be5 R7h6 Nf1 Qce3 Nfd2 b1Q+ Ka3 Qc1+ Ka2 Qh5 Qb6 Qg6 Bh1 Bg2 Qd4 Qef3 Qb6 Qd6 Qf2 Be4 Qe2 Kd7 e8Q+ Kc7 Nb1 Qfh5 Rb6 Bd3 Qc6+ Kd8 Qd2 Ke7 Qe2 Kf8 Qb7 Bf1 Bc6 Bg2 Nbd2 Bde4 Rb1 Qhg4 Qb5 Qc5 Bb7 Qgf3 Qb3 Qb5 Qa3+ Qc5 Rb4 Qc6 Qb2 Qb1+
rnN2B2/N1bqPrQ1/2Qp1BR1/1n4b1/1n3k1r/K2bR2r/1nQ1q3/1r1B4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 h4 Kd6 e4 Ke5 c4 f5 Kc2 b5 Kb2 g5 a4 b3 a5 g3 h5 g4 h6 d6 a6 f3 a7 f4 h7 g2 c5 b4 c6 g3 c7 d3 Nd2 f2 Qc2 f3 Nb1 d2 Rh2 Kf4 e5 Ba6 c8Q Nf6 e6 Be7 Bc4 f1Q Nc3 f2 Ne4 Nd5 Nf6 Qe2 Ra3 f1R Nf3 g1R Qd7 g2 Ng8 Bg5 Ne7 Rh1 Nd4 g1B Rh6 Rh4 Nb5 Bb6 Rg6 Bc7 Nc8 Qe8 Qg7 Qd7 e7 Rf3 Ka1 b2+ Ka2 b1N Re3 d1N Bb3 Na3 Bd2 Rf8 h8B Rf7 Bc3 Rg3 Bf6 Rgh3 Ba4 Nc4 Kb3 Ncb2 Ka2 b3+ Ka3 Rh5 Qh6 N1c3 Bhg7 R5h4 Bf8 Nb4 Qg7 N2d3 Qb1 b2 Bd1 N8c6 Qa2 b1R Qc2 Nb2 Nb6 Re8 a8Q Nb8 Na7 Bd3 Qc6 Nb5+ Kb3 Rd8 Na8 N8a6 Nb6 Ra8 Nbc8 Nc3 Ka3 Nb8 Qh6 N4a6 Qh8 Nb4 Qg7 Nb5+
2Nb1b2/2BP1p1B/1Nr5/n1nQ3n/Rq1R1r1k/rbqr4/2Q2K1b/1N2Q2r w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Ke7 g4 Kf6 d4 Kg5 e4 b5 a5 c5 a6 h5 e5 h3 d5 h2 e6 h4 a7 c3 e7 c2 e8N c4 d6 c3 Bc4 h3 Ba3 c1B Bf1 c2 Bg2 f3 Qe2 f2+ Kf1 b3 Be4 b2 Nf6 b4 Nd2 b1N Nh5 b3 Qc4 b2 Bg6 Nf6 Ne2 Nc6 Qf4+ Kh4 Qe4 Qa5 Bh7 Qc3 Ng7 Be6 d7 Na5 Bd6 Nh5 Nf4 Bb3 g5 Rg8 Ke2 f1R Ne8 Rg6 Bc7 Rc6 Nd5+ Rf4 Rd1 h1R g6 h2 g7 Rg1 g8Q h1R Qc4 Rg3 Nd6 Rf3 Nb6 Rd3 Nf1 Nd2 Ra4 b1Q Qg1 Bb2 Ndc8 Ne4 Nd2 Nc5 Qe4 c1B Qe1+ Rg3 Qc2 Ba3 Qf1 Rd3 Qg1 Qbb2 Nb1 Qb4 Qf1 Q2c3 Qg1 Be3 Qe1+ Bf2 Rd2 Bg3 Rd1 Rdf3 Rd4 Rd3 Qf1 Bh2 Qg1 Re4+ Kf2 Bc1 Qe1 Bg5 Qa2 Bd8 Qc2 Rb8 a8Q Rg4 Qa6 Ra8 Qb7 Rf4+ Ke2+ Rg3 Qec1 Rd6 Qe1 Nc4 Qd5 Rc6 Ra2 Ra4 Ra3 Na5 Ra1 Re4+ Kf2 Rd3 Ra2 Rg4 Rb2 Ra1 Ra2 Re4 Ra4 Ra3 Qe6 Rg4 Qd5 Rf4+
r1r5/1P1B1r1p/q1n1Nkq1/1q3B2/1b2KNq1/1bRrQ3/1Qq3R1/Q1n1Bn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 a5 e4 f5 g4 d5 c4 a3 b4 f3 c5 h3 b5 a2 e5 f2 b6 h2 c6 f4 c7 a4 b7 a3 g5 f3 e6 Nd7 g6 Qe8 g7 Ne5+ Kc2 d3+ Kc3 d4+ Kd2 Kf6 e7 Qg6 e8B Bb4+ Nc3 Ne7 g8Q Be6 c8Q N7c6 Bf7 Bb3 Rb1 a1Q Be8 a2 Rb2 Qb1 Qh3 a1Q Bd7 Qa6 Ne2 Qba2 Qb8 Rc8 Nf4 Q2a4 Ne6 Q4b5 Rg1 h1Q Rg2 Qg1 Rc2 Qh2 Be2 f1R Ba3 f2 Qa1 Qf4+ Qe3 Qfg4 Qa7 Rh1 Qb2 f1N+ Ke1 d2+ Kf2 d1Q Bd3 Qb1 Bf5 d3 Ne2 d2 N2f4 d1R Rc3 Rd3 Qad4 Rh5 Qa1 Rg5 Bc1 Qc2+ Bd2 Qh6 Qb2 Rg7 Qa1 Qhg6 Qb2 Qc1 Be1 Rf7 Qa1 Rd1 Qdd2 Qb1 Qdb2 Nd3+ Kg1 Nc1 Kf2 Q4g5 Kf3 Rd3 Ke4 Qc2 Re2 Q5h5 Rg2 Qhg4
B1qk1nB1/1P1r1bp1/1b4Qr/2b3b1/Q2BN1RN/Q7/n1qn1n2/3q1nRK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 a5 Kg2 f5 h4 d5 c4 a3 e4 f3+ Kh2 g3+ Kh3 a2 b4 a4 h5 g2 Kh2 f2 b5 a3 b6 f4 e5 f3 c5 d3 e6 d2 c6 d4 h6 d3 h7 Bc5 e7 Ra7 c7 Be6 c8B Nd7 Nc3 Nh6 Bb7 Qc8 Ba8 Bf7 Ne4 Ng4+ Kg3 Nf8 Ng5 Rd7 Ne2 g1B Qa4 d1N b7 d2 Bb2 Nc3 Nd4 d1Q Nf5 Qc2 Bc4 f1N+ Kh3 f2 Kg2 Bb6 Ne4 Nd2 Rh4 f1N Kh1 Bgc5 Rb1 a1B Be6 Rg8 h8Q Na2 Bd4 Bb2 Qh6 Bc1 Qe3 Rh8 Qc3 Rh6 Qe3 Bg6 Bg8 Bf7 Qf3 Ngh2 Rf4 Ng4+ Nh4 Nf2+ Kg1 Nc4 Rg4 Bg5 Qh3 Ncd2 Kg2 Ng3 Rg1 Ngf1 Qhb3 Nc3 Qb2 a2 Qc1 a1Q Qca3 Nd3 Kh1 Qad1 Qc6 Na2 Qd6 Rd8 Qg6 Kd7 e8Q+ Kc7 Qee6 Rd7 Qeb3 Kd8 Qba4 Nf2+
4b3/npR5/N2PQbb1/r2rR1Q1/R2B1b1b/NKn2knB/7Q/n1qqr3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 g4 Kd6 a4 Ke5 d3 f5 Kd2 h5 Kc2 c5 g5 h3 a5 c3 a6 h4 g6 f3 a7 c4 g7 f2 Na3 b3+ Kb1 h2 Ra2 c2+ Kb2 h3 Bh6 c1B+ Kc3 b2 Qf3 b1B Qg4 f4 Qg6 f3 Rd2 Ne7 g8R Bb2+ Kb4 c3 Rd1 c2 Qe8 c1B Qf7 Nd5+ Kb3 Nc6 Qg6 Bf4 Re1 Nc3 Ne2 Be7 Rg7 Bd7 Nc1 Be8 Na2 Bh4 Nb4 Qc7 Bg5 Rh5 Na6 Kd4 Bh6 Rd5 e5 Ba1 Bg2 f1Q e6 f2 e7 Bb2 Rg1 h1N Re5 h2 Bh3 Ng3 Qg5 h1R Rf7 Qd7 Bg7 Qc1 Bf6 f1N Bh8 Nge4 Rg4 Ke3 d4 Kf3 Bg7 Neg3 Bh8 Ra5 d5 Rd8 a8Q Ne3 Qb8 Re1 Rh7 Na7 Rg7 Bh5 e8Q Bbg6 Qe6 Nc2 Rf7 Qd6 Rc7 Be8 Re2 Bhg6 Bd4 Qc5 Re5 Qd1 Bg1 Qe3 Bf2 Qec1 Bg1 Be3 Ra4 Bf4 Bd4 Rc8 Rf7 Rcc5 Rc7 Ba1 d6 Rd5 Qbd8 Bb2 Qh6 Ba1 Qdg5 Nb1 Bg4+ Kg2 Rf5 Bb2 Bc5 Bf6 Re5 Nc3 Bf5 Kf3 Qh7 Nc6 Bd4 Na7 Qgh6 Bhg5 Q6g7 Bgf7 Qh2 Bh4 Qg5 Bg6 Bh3 Na1+
2k3q1/P2rQn2/N1qBKb1b/Rr3Qnq/7r/rNp3q1/4b3/1BN1B1Rr w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 f5 a4 b5 g4 h5 d4 c5 e4 b3 d5 h3 g5 c3 a5 b4 a6 c4 e5 h2 g6 h4 g7 h3 d6 c2 Bd2 c1B Bc3 b2 Qd2 b3 Na3 b1Q Qe1 b2 Be2 Nc6 Nc2 Rh4 Na3 Nd4+ Kf2 f3 Kg3 f4+ Kf2 Ne6 Nc2 Ng5 Bd2 c3 Bd3 Nh6 g8Q Bg7 Nd4 Nhf7 Nge2 Bf6 Qh7 Qg8 Rg1 h1R Nb3 h2 e6+ Kd8 Bf5 Qe4 d7 b1R Ra5 Qc6 e7+ Kc7 d8B+ Kb8 Be4 Bg4 e8N Kc8 Nc7 Bh5 Nc5 Rb5 Nb3 Ra7 Be7 Rab7 Nd5 Rd7 a7 Bg4 Bb1 Bh5 Kf1 f2 Kg2 f1R Qf5 f3+ Kg3 f2 Nc7 Bg4 Kf4 Bf3+ Rg4 Rfg1 Ba3 f1Q Na6 Qg2 Bd6 Rf1 Ng1 Qf2 Qe7 Re1 Ne2 Qg3+ Ke3 Reg1 Kd3 Rg2 Be1 Bf4 Nec1 Ra2 Qfe6 Ra3 Qf5 Ne4 Rg6 Bh6 Rg4 Neg5 Ke3 Qh3 Rg1 Bg4+ Kf4 Qhg2 Qc5 Be2+ Kf5 Qg3 Qe3 Rh5 Rg2 Rg1 Qe7 h1Q Qd5 Qhh2 Qde5 Rh1 Rg1 Rh4 Qd5 Rg4 Qde5 Qh5 Qc5 Ne4+ Ke6 Rgh4 Qf5 Neg5+
3n2rb/P2b3n/1R2q3/2krQ1K1/1q1NQ2p/3bB2Q/q2rBr2/bRN1N1b1 w - - 0 1 illegal: No possible last move
1NR2RnB/1b2rQ2/3rP1QR/3k1rBn/6rK/1N2b1r1/2p2bb1/r4qrB w - - 0 1 illegal: No possible last move, all moves rejected
2b1NRNq/1p4rn/P2bnnr1/1rrr2k1/1n1Rr3/1Q5Q/B4n1B/2N1R2K w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 g4 Kf6 Kg2 d5 c4 h5 a4 d3 e4 d4 a5 d2 a6 d3 c5 f3+ Kh2 b3 c6 f2 c7 h3 e5+ Kg5 e6 f5 e7 f4 e8Q b2 Qc2 d1R Qb3 d2 Qd3 h4 Qg3 f3 Qd6 Nd7 Qb6 Ngf6 Ne2 Re1 Nbc3 b1R Ng1 Nh7 Ra2 Nc5 Ra1 Re4 Qee6 Rb5 Rb1 Rg8 Rb4 Rg7 Bb2 d1R Ra4 Rd5 Qg8 Ne6 Bc4 f1R Qh8 f2 Nge2 Rc1 Re1 f1N+ Kh1 h2 Ba2 Bd6 Rd4 Ne3 Ba1 Rc2 Nc1 Rg2 Bb2 Nc2 Ba1 Rdc5 Nd5 Nb4 Nf6 Rd5 Bb2 Rc2 Ne8 Rcc5 Rdd1 Rb8 Be5 Rg6 Rd4 Qf6 Kg2 h1N Bh2 Ng3 Kg1 Nh5 Kh1 Bd7 c8R h3 Rd8 Qf8 Rc8 N5f6 Rd8 Ra5 Qb5 Bc8 Qa4 Rab5 Qb3 Kh4 g5 Rg7 g6 Kg5 Qg8 Ra8 Qf7 Qh8 Qd7 Rb8 Be5 h2 Bg3 Rf7 g7 Ra8 g8N Rg7 Kg2 h1N Bh2 Nf2 Kg1 Nef8 Qdh3 Rg6 Nc7 Ne6 Rf8 Bd7 Ne8 Rac8 Qc4 R8c7 Qcb3 Bc8 Kg2 Rcg7 Kg1 Nfd3 Kh1 Nf2+
5Q1B/b2qN1rk/nBb1N3/1b1R2r1/2NRK2n/pqr1Q3/P5Bn/b5qr w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 Kd2 f5 e4 Kf7 g4 Kg7 b4 h5 b5 d5 b6 c5 b7 a5 g5 d4 g6 c4 e5 a4 e6 c3+ Ke1 a3 Kf2 c2 Kf3 h3 e7 h4 e8Q d2 Be2 h2 Bf1 d3 Qde2 d1R Qa4 d2 Qb4 h3 Qc5 Qd7 Qcf2 Bc5 Qee1 Ra5 Qe8 Rh7 Ne2 Ne7 Ng1 Ba7 Bb5 Na6 b8B Bb7+ Ke2 Bc6 Bd6 f3+ Kd3 f4 Qd8 Nf5 Qe8 Nh4 Qfe3 f2 Nf3 f1N Ng5 f3 Bb2+ Kh6 g7 c1B Qa8 f2 g8N+ Kg6 Bg7 Bb2 Bh8 Rg7 Ne6 Kh7 Qf8 Rc1 Ne7 d1Q+ Nd2 Bc3 Ba4 Qb3 Nc4 Rag5 Rg1 h1R Rg4 h2 Rd4 Bb5 Ke4 Bb2 Rb1 Ba1 Bc5 Rc3 Re1 Rhg1 Red1 h1B+ Kf4 Bb7 Bb6 B7c6 Rd5 Nh2 Ke4 f1Q Rd4 Qbd1 Bc2 Rh1 Bd3 Qf2 Bf1 Qb3 Bg2 Qg1
1B1R1r1n/nQ2Q2B/4bnqN/K3R3/qN1rPb1k/Bp5n/2qqb3/2N4r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Kf6 h4 g5 c4 b5 a4 d5 h5 b3 h6 g3 h7 g4 a5 Kg5 a6 f5 a7 g2 c5 f3 c6 b2 c7 g3 Rh3 f2 Rh6 b4 Qe1 d3 Rh2 d4 Ne2 g1Q Nbc3 b1Q Na2 g2 Nec3 f4 Rh6 f3 Rd6 Ne7 Ne2 Be6 c8N Kh4 Nf4 Nbc6 Ne2 Ng6 Rd5 Bh6+ Kd1 d2 Nd6 Bf4 Rg5 b3 Nb4 Qa5 Ra3 Raf8 a8Q Na7 Nf7 Qa4 Nh6 Qa2 Re5 Qb1 Ng3 Qa2 Bd3 f1B Bc4 f2 Qb7 Bd3 Bb2 f1N Ne2+ Ng3 Nc1 Qb1 Qf1 Nh5 Ra2 Nf6 Ba3 Qb2 Bd5 Qb1 Rc2 Bb5 Rc8 Ba6 Bc4 Qc2+ Ke2 Bb5 Rd8 Ba6 Qf3 Bb5 Qd3 d1R+ Qd2 Qh2 Qe7 Qg3 Qb7 Rh1 Qe7 Rhg8 h8B Ba6 Bg7 Nh8 Qb7 Qg6 Qe7 Qa2 Kd3 g1N Qe3 Qb1+ Kd2 d3 Kc3 d2 Qb6 d1Q Qbb7 Nh3 Bd5 Bg4 Be6 Bae2 Bf5 Qh5 Bh7 Qg6 Ncd3 Qd2+ Kc4 Bd1 Nc1 Be6+ Kc5 Be2 Kb6 Qc6+ Ka5 Qbc2 Rc8 Rd8 Bf8 Rd4 Rd8 Bd5 Qe8 Bf7 Bd6 Rf8 Qee7 Be6 Bb8 Qa4+
B2bb1N1/r5q1/2rR4/3R2n1/1B1qpRn1/2Q1r3/k1q1BP1b/2KNqnQr w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Ke6 a4 h5 g4 d5 g5 b5 a5 h3 c5 e3+ Kc2 h2 g6 e2 a6 e1B c6 h4 g7 b3+ Kb2 h3 c7 d3 a7 d2 Ne2 b4 Nec3 d4 Qh5 d1R Ne2 d3 Qc5 d2 Bg2 Nd7 Nec3 Ne5 Qe3 Nh6 g8B+ Nf7 Ra5 Qd7 Bc6 Rh6 Qb6 Ng4 Bh7 Ng5 Rf1 h1R Bhe4 h2 Ka1 b2+ Ka2 b3+ Ka3 Qd4 Qb5 Qg7 Qb6 Bd7 c8R Be8 Qa6 Kd6 Ne2 e5 Bf3 e4 Nbc3 b1Q Qc4 b2 Nd4 Qc2 Be2 b1Q Bb7 Rh3 Nc6 Re3 Ne7 Qb6 Qb3 Qbd4 Rd5+ Ke6 Bb2 Rc1 Qb4 d1N Ng8 Bd6 Qc5 Bd7 Rf8 Be8 Rf4 Bd2 Bc6 Bc7 Qc4 Bd8 Qd3 Rb1 Bc1 Rb6 Bb7 Rc6 Qc4 Rac8 a8Q R8c7 Qaa4 Re7 Ba8 Rf7 Bb2 Ra7 Ka2 Bc1 Ka1 Bd2 Ba3 Bc1 Bb4 Ba3 Ba5 Bd6 Bb4 Qde5 Rf7 Rf3 Rb5+ Qd5 Nf6 Rg1 Qa6 h1Q Ng8 Bh2 Rf4 Nde3 Rd1 Rf1 Qb3 Re1 Qb1 Qc4 Rd7 Qcd4 Qa3 Rc1 Ra5 Qhd1 Rb5 Q1d2 Ra5 Rh1 Qg1 Nf1 Qb2 Re3 Nd1 Qe1 Qc3 Qa4+ Kb1 Qb3+ Kc1 Qa4 Bc5 Qa2 Rdf7 Kd5 R7f6 Qb3 Qd2 Qbd3 Rd6+ Kc4 Bb4 Kb3+ Rc5 Qd5 Qc3+ Ka2 Rb5 Q5d4 Rbd5 Qc2+
1Q5r/3bR1rN/K2B1B1k/2R2nbB/QPn1nqq1/1npr2N1/b2R4/3rq3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 h5 b4 c5 e4 f5 Ke2 Kf7 d4 Kg7 g5 a5 g6 a3 e5 c3 Kd3 h3 Kc4 h4 Kb5 f3 e6 a2 e7 c2 e8Q f2 d5 h2 d6 h3 d7 a4 Bb2+ Kh6 g7 c1Q Bc3 f4 Qe4 f3 Bd4 c4 Qf4+ Qg5+ Qe5 a3 d8B c3 Ba7 Bd7+ Ka5 Na6 Qd2 Qe1 Qdd5 Ne7 g8R Nf5 Qde4 Qg4 Bc4 f1N Q5d5 f2 Bc5 Be7 Nf3 Ra7 Nbd2 N1e3 Qde5 f1Q Qc2 Bg5 Rd1 a1N Bf6 a2 Rg7 Nb3+ Kb6 a1R Re7 Ra5 Bd6 Nac5 Bf7 Ne4 Bh5 Rd5 Rg1 Qc4 Nf1 h1R Rd2 h2 Ng3 Rd3 Qa2 Qf7 Qa4 Rb7+ Ka6 Nc4 Rgg2 Rf1 Rge2 h1B Qeb5 Qf8 Re5 Bg2 Rc5 Bh3 Re3 Be6 Qb6 Rg7 Qb8 Rh1 Nh4 Qf7 Ng6 Qc7 Nf8 Bd7 Bde7 Qcf4 Nh7 Bf1 Bd6 Be2 Qe8 Bd1 Qe5 Bc2 Qe8 Bb1 Qb8 Ba2 Ree2 Qef2 Re3 Rd1 Ree2 Qe1 Re3 Nf2 Re7 Ne4
1nq1K3/1q1Qb3/Nk6/5r2/BpQ1q1Rr/1q3n1b/bRPBb1r1/nRN4Q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kh5 b5 g4 f5 a4 h3 e4 f3 e5 b3 e6 h2 g5 f2 e7 b2 e8R b4 a5 f4 g6 d3 g7 d4 a6 f3 a7 d2 Qe2 d1Q Ra4 d3 Bg2 f1N Ra5 f2 Nh3 d2 Re6 Ne7 g8Q Ng6 Bd5 Nh4 Rf6 Nf3 Bb3 Be7 Rf4 Kb6 Ng5 Bh3 Ra2 Qc8 Na3 b1B Rb2 Ba2 Rg1 h1Q Rfg4 h6 Kg6 h5 Kf7 h4 Ne4 Qe1 Ng5 d1B Ne4 Qec3 Nb1 N1d2 Qd3 f1R Nc5 Be2 Na6 Rf2 Qd5 Rg2 Ba4 Nb3 Nd2 Na1 Nb3 Rh5 Qd7 Rf5+ Kg6 Qe3 Bd2 Qe4 Rgb1 Qe1 Bg5 Qec3 Nc1 Qb3 Qc4 Qeb7 Rf4 Bg4 Re4 h3 Bd2 h2 Rf4 Bh3+ Rg4 h1Q Kg7 Qe4 Kg6 Nc6 Kg7 Rb8 a8Q Rb7 Kg6 Nb8 Kg7 Rc7 Kg6 Rcc5 Kg7 Rh5 Kf7 Rh4 Qad5 Qb7 Qh5 Rf5+ Ke8 Qc8+ Qd8+ Ka7 Qg5 Rg1 Bd7 Qe6 Rd4 Nh2 Ba4 Qhb7 Qg2 Nf3 Rg4 Qee4 Qf1 Rg2 Qh1 Qcc7 Qc8 Kb6 Qd7 Qcc8+
2R2q1q/2N1R1B1/2qKbn1r/2QnP1n1/6nb/r2Bb2b/1B1prN1k/RQ6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 b5 h4 g5 c4 d3 a4 b3 c5 g3 c6 Kg4 e4+ f3 a5 f5 e5 g2 h5 Kg3 h6 d2 c7 b4 a6 g4 h7 f4 a7 f2 Bb5 f1Q Bc4 f3 Na3 b2 Rh6 b1Q Rh5 b3 Qc2 d1N Bb2 f2 Qd2 Ne3+ Kd4 d5 Nb5 Qc2 Re1 Nd7 Rf5 Ngf6 Be2 Kh2 Nd6 g3 Qd1 Neg4 Ba6 Qc6 Nh3 g1N Bb7 g2 Rf3 Nb6 Nf7 Be7 Re4 Be6 c8Q Qf8 Ree3 Qe1 Qc2 f1B Nd8 Qh4 Nf2 Nh3 Qb1 g1B Rc3 Ng5 Ba6 Bh3 Bd3 Qhh6 Nb7 Qh5 Nc5 Qhe8 Na6 Qd8 Bc1 b2 Nc7 Qde8 Ra3 Qh5 Ra1 Qh4 Qa2 b1R Bb2 Re1 Qb1 Re2 Rf5 Nfd7 Rf7 Ndf6 Qe8 Bd8 Qe7 Qh5 Qc5 Be7 Kc3 d4+ Kb4 Nbd5+ Kc4 Bd8 Re7 Qhe8 Ne4 Be3 Nf2 Rg8 h8B Rg6 Bg7 Rh6 Be4 d3 Bh7 d2 Bd3 Rb8 a8R Rb3 Rc8 Qh8 Bd4 Ra3 Bb2 Bf4 Kd4 Qef8 Kc4 Qce8 Kd4 Be3+ Kc4 Qg6 Kb5 Qe4 Kc6 Qc4 Rd7 Ngh7 Rf7 Ne4 Rd7 Qc1 Qcc2 Bh4 Re7 Nef6 Kd6 Ng5 Qc4 Qc2 Qc3 Qa4 Qc5 Qc6+
2Bb1n1r/1qr1n1N1/k1qn2q1/r1BQp3/2N4R/3qR1bB/2NQ3P/1r3b1K w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 d5 f4 Kd7 Kf2 Kc7 Kg2 Kb6 c4 g5 a5+ Ka6 f5 e5 c5+ b5 f6 e3 c6 d3 f7 g3 c7 b3 Qe1 g4 Bd2 b4 Bc1 b2 Nd2 b1R Be2 d4 Ra4 b3 Nc4 b2 Nf3 d2 Rb4 d1Q Qg1 d3 Ra4 d2 Qf2 Nd7 Nh4 Qe8 Qf4 Ne7 Bd3 e2 Qf2 e1B Kg1 g2 Qf4 Bg3+ Bf1 Bg7 f8Q Bf6 Qf7 Nf8 Nf5 Qc6 Ng7 Qb3 Qf2 d1Q Be3 Qdd3 Bc5 Qbb7 Na3 Rc1 Rd4 b1N Nc2 Nc3 Qd5 Ne4 Qd2 Nd6 Rc4 Bf5 c8B Be4 Ra4 Bf3 Rf4 Be2 Re4 Ng8 Rc4 Bd8 Rf4 Ne7 Re4 Kb5 a6 Rb1 a7 Ka6 Be6 Rc8 a8N Rc7 Nb6 Rb5 Bf5 Ra5 Nc4 Bf4 Kf2 g1R Bh3 Rb1 Kg2 g3 Re1 Bf1+ Kg1 g2 Bc8 Bg3 Rh4 Qb3 Ree4 Qd3 Re3 Bf4 Kf2 g1Q+ Kf3 Qg4+ Kf2 Qe6 Kg1 Qeg6+ Kh1 Bg3
b1QB1Qq1/n1q2BNR/K5r1/2Pb1pqr/5b1R/2B5/3rbN2/1nq1kNn1 w - - 0 1 illegal: No possible last move
qr2Nb2/4n1Nq/1R5p/2b3Q1/1Q4N1/1BK2P2/qQbrRnrn/2Bb1q1k w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 a4 Kg5 g4 Kf4 g5 e5 c5 d5 g6 b5 g7 d3 f3 Kg3 a5 h3 c6 b3 a6 e3+ Kc3 d4+ Kb2 h6 c7 e4 a7 e2 Nd2 e1Q Be2 Kg2 Ra5 h2 Ra4 b4 Nc4 e3 Nb6 d2 Ra6 d3 Nd7 Nc6 Nc5 Rb8 a8Q Nge7 g8N Bf5 c8Q Ne5 Nb7 Qf1 Rg6+ Ng4 Qdc2 d1R Nc5 d2 Nf6 Rg8 Bc4 e2 Nfd7 e1B Qcb7 Bf2 Qc3 Bc2 Ne6 Bc5 Nh3 Qc8 Qaa7 Qc6 Qb5 Qa8 Qaa5 Rg7 Nf2 Rg8 Ka1 b2+ Ka2 Rg7 Bb3 Bd6 Nd3 Qg1 Qh5 Bc5 Nf2 Be4 Qf6 Qe1 Rf1 h1N Ba4 Rg8 Kb3 b1Q+ Kc4 b3 Qb4 b2 Bb3 Qba2 Qhf5 b1Q Qb2 Bd3+ Kc3 Rg7 Rf6 Nh2 Qff4 Qe2 Re1 Qf1 Re2 Kg1 Qe5 Rg2 Ng4 Nf2 Ng7 Kh1 Rb6 Bh7 Ndf6 Qg6 Qf5 Qf7 Qg5 Bc2 Ne6 Qh7 Ne8 Re1 Re3 d1B N6g7 Re2 Ree6 Rd2 Re4 Kg1 Re2 Kh1
2N1Q1N1/3Q1r1b/rRQ3P1/3r1b1K/5pnR/Bnqrb3/qq4BR/1knn4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 a4 Ke4 c4 h5+ Kh3 d5+ g4 b5 a5 f5 e3 b3 a6 f3 g5 d3 a7 b2 c5 d4 c6 d2 c7 d3 Qa4+ b4 Ne2 d1N Qc2 b3 Nd4 f2 Qd2 Qf6 Rg1 Nc6 Ne6 Na5 Qc2 Qc3 Rg3 Bc5 Nd4 Nh6 Rg2 Rd8 Be2 f1R Qd2 Ng4 Ne6 Rd5 Na3 b1Q Ng7 b2 Nc4 Qa2 Rf2 b1Q Ne8 Qbb2 Rh2 Nb3 Nb6 Bd7 c8R Ndf2+ Kg2 h3+ Kg3 f4+ Kh4 Bf5 Rc7 Rd1 Rb7 Bh7 g6 Bd4 Rg2 h2 Bf1 h1B Rh2 Bg2 Nc8 Bh3 Rb6 Bc5 Qe2 d2 Qb5 Nd3 Qd7 Bd4 Ng7 Bc5 Nf5 Bd4 Kg5 h4 Kh5 Bc5 Ne7 Rf8 a8Q Rf7 Qac8 Bg2 Rb1 h3 Ng8 Bf3 Qcc6 Bh1 Re2 h2 Rf2 Bg2 Re2 Bh3 Bg2+ Ke5 e4 h1R Nd6 Be3 Nc8 Kd4+ e5 Rhf1 Kh4 Rf3 e6 Re1 e7 d1N Bd2 Ndc1 e8Q Kd3 Rf2 Kc2 Re2 Ne5 Kh5 Bf5 Ra1 Ng4 Rf2 Qc4 Bb4+ Re2 Ba3 Qcc3 Rf1 Red2 Rh1 Ra5 Rh3 Ra6 Rh4 Rd5 Bc5 Qa4 Ra2 Kb1 Bf8 Bd2 Bc5 Rfd3 Ba3 Be3 Bh3 Qa1 Rh2 Qab2 Bg2 Qaa5 Be7 Qaa1 Ba3 Qaa2
8/2n5/2brPN2/Kq3k1b/N2R1n2/rq1qrpQ1/1RnbN1B1/B1b2rQQ w - - 0 1 illegal: No possible last move
4Q3/2rRN3/3npk2/q3r2b/1b2r1nP/Nn1q3q/1NBBb2R/b1RQ1rK1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 Kf7 Kf2 g5 c4 b5 h4 d5 a4 d3 a5 e6 a6 b3 a7 b4 f5 e3+ Kg2 e2 f6 e1R c5 b2 c6 d4 c7 b3 Nh3 g3 Nd2 b1R Ra2 b2 Qc2 g4 Nf4 Nd7 Be2 Bb4 Bf1 Ba6 c8N Rh7 Rg1 Ne5 Ne2 Nc4 Nc3 Nd6 Na4 Nh6 Ne7 Re4 Nc4 d2 Qd1 d3 Qb3 d1B Ra1 d2 Kh1 g2+ Kh2 g3+ Kh3 Bh5 Nc6 d1Q Ra2 Ng4 Rh1 g1Q Na3 g2 Bd3 Qgf1 Ra1 Rb8 a8R Qa5 Rh2 Rb5 Rd8 g1B+ Kg3 Kg6 f7 Bd4 f8Q Re5 Qe8+ Kf6 Qd5 Qd2 Bc2 Rc7 Ne7 Be2 Rd7 Qdd1 Bf4 Rc1 Be3 b1N Bh6 Nd2 Rb1 Ba1 Nb2 Qfe1+ Kg2 Nb3 Bf4 Qdd2 Be3 Rd1 Rc1 Qd4 Bf4 Qec3 Bh6 Qdc4 Qd4 Re1 Qd1 Rf1 Bd2 Qe3 Be1 Qcd3 Bd2 Rff5 Kh1 Qh3 Kg1 Rf1+
R1K3b1/1q2bnNk/2QP1Br1/2Nb1n2/rR4bq/3r3B/1n1n2Qp/R1q3Q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 f5 d4 Kf7 g4 Kg7 e4 b5 a4 c5 e5 b3 e6 h3 a5 b2 g5 c3 d5 h4 e7 c2 e8R c4 g6 c3 a6 h2 a7 h3 d6 b4 Qd5 b3 Na3 b1N Ne2 b2 Nd4 Qh4 Ra2 Ne7 Nc6 Rg8 Qd3 Nd2+ Ke2 b1Q Bg2 f3+ Ke3 f2 Rg1 f1R Ra1 h1B Nb5 h2 Qe4 f4+ Kd4 f3 Kc5 f2 Kb6 Rd1 Kc7 f1B Bh3 Bg4 Nd8 Nbc6 Bb2 c1N Qg2 Nf5 Nd4 c2 Nb3+ Ne5 Nc5 Bc4 Nde6+ Kh6 g7 Kh7 Bd4 Nf7 Bf6 Nd3 Re1 c1Q Re4 Bb3 Rb4 Nb2 Reb8 Bc4 Qg1 Bhd5 Kc8 Nb3 Qg2 Rd3 Qg1 Nd2 Qg2 Rh8 Qg1 Be7+ g8Q+ Kh6 Qe8 Rg8 Ng7 Bb3 Ne6 Rg6 Qc6 Kh7 Ng7 Be6+ Kc7 Bbd5 Rc8 Rb8 a8Q Rb6 Qab7 Ra6 Ra8 Ra4 Kb8 Nh8 Kc7 Bg8 Kb8 Nf7 Kc8 Ba2 Qcg2 Bd5 Qd7 Qa2 Qc6 Qb3 Rf4 Qb5 Rb4 Qb7+
Nb4k1/3N4/1q1p3K/1rNb2Pn/rr2Rb1n/1Qqn3B/B3qn1B/R1b4Q w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 e5 a4 b5 f4 h5 g4 h3 c5 h4 g5 h2 a5 d3+ Ke3 h3 c6 d2 f5 b3 f6 b2 c7 b4 a6 b3 a7 Ba3 Ra2 Nc6 Nc3 b1R Bb2 Nb4 Ba1 b2 Bg2 Nh6 Qe1 d1Q Na4 Bb7 c8Q Nd3 Nc3 Bd5 Nf3 Qb6+ Qc5 Kg8 Rg1 h1N Qf1 h2 Na4 Ng3 Ne1 h1N Qf2 Nh5 Qh4 Nhf2 Bh3 Qdb3 Rg3 Qc3 Rg4 Nf5+ Ke2 e3 Qb5 d6 Qb3 e4 Rf4 Rb8 a8B Rh7 Bc6 Ra7 Be8 Qb5 Nb6 Ra4 Na8 Qa6 Rg4 Rbb4 Bb5 Qb6 Bc4 Qa6 Rf4 Rb5 Rg4 Bc5 Ra3 Ba7 Rf4 Bb8 f7+ Kg7 f8N Kg8 Nd7 Rbb4 Qg3 Nh4 Qg2 Rb5 Qh1 Rbb4 Kf1 e2+ Kg1 e3 Kh2 Qb6 Re4 Qb5 Ng2 e1B Nf4 e2 Ne6 Bd2 Nec5 e1B Ra2 Ng7 Kg3 Bc1 Ra3 Bed2 Ra2 Nd1 Kg4 Bf4 Ra3 Nh5 Ra2 Ng2 Kf5 Qb6 Kg6 N1f2 Kh6 Nh4 Nb7 Qe3 Nbc5 Qe2 Ra3 Bcd2 Ra2 Rf1 Ra3 b1Q Bb2 Bc1 Ra1 Qcc2 Be5 Qc3 Qc2 Rg1 Ba2 Rg4 Qb2 Rb5 Qa3 Qbb4 Qb3 Qa5 Qb4 Qb6 Qb3 Bfd2 Bh2 Be3 Re6 Rgb4 Re4 Bf4
Rb2b1kq/N4rn1/2P4n/2p2Rb1/qR2qn2/r2NB1q1/5nQK/1QQ3rB w - - 0 1 illegal: No proof kernel
2K3q1/1BQ2Qr1/R1p1rP1N/7R/3k4/b2b1nR1/q3rbNn/n1qqB1rN w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 a4 h5 g4 b5 d4 e5+ Ke3 c6 f4 c3 g5 b3 g6 c2 f5 b4 a5 b2 a6 h3 f6 h2 a7 h4 g7 b3 Bh3 Na6 Qe1 Nh6 g8R Bf5 Bg4 h3 Rg5 Nb4 Qf2 Rg8 Qf4 Rg7 Bd2 c1Q Ne2 Nc2+ Kf2 e3+ Kf3 Bd3 Ra6 Ba3 Be1 Na1 Bc8 Ng4 Nd2 b1Q Nc4 b2 Bb7 Qg8 Ng3 Re8 a8Q e2 Qa7 Qa2 Rg6 b1N Ne3+ Kd6 d5 Re6 Qc4 e4+ Kf4 Nd2 Kf5 Nf3 Ng2 Qd1 Qb3 Qc1 Qb8+ Kc5 d6 Kd4 d7 Qd1 d8N e3+ Ne4 Qc1 Qc7 Qd1 Rg5 Qc1 Rg1 h1R Rh5 h2 Nf7 Qd1 Nh6 Qc1 Ba5 e1B Bd2 Bf2 Be1 Re8 Qbf7 e2 Nh4 Re6 Rg3 Rg1 Ng2 h1Q Ba8 Rd6 Bb7 Rd5+ Ke6 Re5+ Kd7 Ngh2 Rgg5 Re6 Rg3 Qh7 Kc8 Qg6 Bd2 e1R Ba5 Re2 Be1 Be3 Nf2 Qg4 Nh4 Qg2 Nh1 Bf2 Kd8 Qf1 Ng2 Qg6 Kc8 Qg4 Bd2 Qfd1 Be1 Qg6 Raa5 Qh7 Ra6 Qg8+
1brnRK1N/2n1q2r/1P1Br3/b2q4/bN2q1Q1/1B1nRR1Q/1p1N1n2/r1k5 w - - 0 1 illegal: No proof kernel
1r2Q1b1/5NQR/kP4K1/4Q1q1/q2n1r1N/p3nB1n/bRnb3B/rBr2q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 d5 Kf3 Kd7 Kg4 Kc6+ Kh5 Kb7 c4 f5 b4 a5 e4 f3 g4 d3 e5 h3 g5 d2 c5 a3 b5 h2 e6 d4 b6 f4 g6 a4 g7 a2 e7 d3 e8Q f2 c6+ Ka6 c7 f3 Qb3 d1R Qe3 Nh6 g8Q Be6 Na3 Bb4 Rb1 a1N Bg2 f1Q Rb2 d2 Nb1 f2 Qe5 Nc6 Nc3 Ng4 Qe1 Nc2 Ra2 N6d4 Qa3 Nge3 Qe8 Bg8 Bb2 Rc1 Bh3 d1Q+ Nf3 h6 Ne4 Bd2 Kg6 h5 Bg2 h4 Qaf8 h3 Qf6 a3 Qff8 Rb8 Nd6 Rh4 Qg7 Rf4 Nf7 Ra1 Nh4 Rc1 Rg1 h1R Bf3 h2 Bc3 Qe7 Rb2 Qe5 Rg5 Rg1 Bb4 h1N Bd6 Qa5 Rg2 Qa4 Rg5 Qg2 Be5 f1B Qg3 Qe1 Rh5 Bc4 Rh7 Nf2 Qg5 Ba2 c8B+ Ka5 Bcg4 Qef1 Bf5 Ka6 Bc7 Nh3 Be5 Re4 Bh2 Rf4 Qge5 Ra1 Qg7 Qfc4 B5e4 Rgc1 Bd3 Qf1 Q5e5 Qcb5 Bde4 Ne1 Bb1 N1c2 Q8e7 Qc5 Qef8 Qe7 Qe8 Qg5+
rnQRQb2/Nq3r2/P1q1QB1q/8/3npBr1/2Nb3K/1kb1q3/1BR2r1n w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Kf6 g4 h5 Kg2 e5 c4 d5 a4 b5 c5 d3 c6 d4 c7 e3 f5 e4 a5 Ke5 g5 d2 g6 d3 g7 Kd4 f6 b3 f7 e2 Qc2 e1R Nc3 d1B Na2 d2 Nh3 b2 Ng5 b1Q Nc3 h3+ Kg3 h4+ Kh2 b4 Bb5 b3 Na2 b2 Bc4 Qf6 Be2 Nh6 g8Q Nf5 Nh7 Qc6 Nf6 Rg1 Nd5 Rh7 Ndb4 Ba6 c8Q Rg4 Qe6 Bd3 a6 Rhg7 Qa4 B1c2 Nc3 d1Q Bf4 Qbc1 Qc8 b1Q Bf1 Qh6 Qae8 Qc6 Rg1 Qe2+ Rg2 Qh6 Nc6+ Kc4 Rf2 Kb3 Na7 Kb2 Qee6 Nd4 Qce8 Bd6 f8B Rf7 Bg7 Bf8 Q6c8 Qc6 Bf6 Qcd2 Bd6 Qh6 Bf4 Qf3 Rd2 Qe2+ Kh1 h2 Qce6 Qa2 Rc1 Qb3 Q8c8 Qbb7 Rdd1 Bb4 Qge8 Bf8 Bg3 Qee3 Kg2 h1R Be2 Rf1 Kh3 Bb5 Bc4 Qe2 Ba2 Bbd3 Bf4 Bc4 Be3 Nb3 Rd8 Nd4 Bb1 B4d3 Bf4 Qe1 Kh2 h3 Be3 Qe2+ Bf2 Rf4 Kg3 h2 Be3 Qg7+ Kh3 h1N Bd2 Rg4 Bf4 Qh6+
2N1rn1q/2R2N1P/1q2n2K/1rbbQ2n/5r1B/3p1N1q/QR4BB/n1k3br w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 h4 Kd5 f4 Kc4 h5 g5 h6 b5 h7 e5 f5 d5 f6 g3 a5 g2 c3 e3 Kf3+ d3 f7 e2 a6 e1R a7 g4+ Kg3 d4 Bb2 e4 Kf4 b3 Qf3 e3 Nh3 g1N Qe2 b4 Ra5 g3 Qf2 e2 Ra4 g2 Qg3 d2 Qe3 d1Q Bc1 d3 Bd2 b2 Qe5 Kb3 c4 Kc2 c5 b3 c6 Nd7 c7 Bc5 f8B Nf3 Nc3 g1B Qg7 b1Q Qd4 b2 Rh2 Bb7 c8N Ng5 Ra1 Ngf6 Nb5 Bd5 Be7 Rf8 Nbd6 Nh5+ Kg4 Rf6 Bg2 Ne6 Ng5 Qh8 Ndf7 Ndf8 Nf3 Rf1 Be3 e1N Qe5 Rh6 Bd4 Kc1 Bh4 Nc2 Bdf2 Qe2 Bfg3 Qe3 Ra4 Rb8 a8Q Na1 Ra7 Rb5 Rc7 Rf6 Bh1 Re1 Qa2 Rf5 Rd2 Re2 Bh2 Rf4+ Kh3 Qc2 Bg2 b1R Re7 Qc3 Rc7 Qa5 Rb2 Qb6 Na7 Nd4 Qe8 Bf2 Nc8 Kd1 Qe6 Rc1 Qf6 Qee6+ Qf5 Re1 Qb1 Rh1 Qa2 Bg1 Ra7 Qd7 Rc7 Rc2 Qe6 Re2 Qf5 Re8 Qe6 Rf5 Kg4 Kc1 Qe5 Rf4+ Kg5 Qde6 Nfd6 Qg4+ Kh6 Nde6 Nf7 Qh3
1r1R1KnB/4P2q/rn1nb2n/R6Q/2b4N/Nq3Bk1/Q1qpr2R/5qbQ w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 Kh5 b5 a4 d5 g4 f5 c4 b3 e4 b4 g5 b2 a5 b3 g6 d3 c5 h3 c6 f3 g7 f4 a6 d4 c7 f2 a7 h2 Ra5+ Bc5 Ra1 d2 Bh3 f1Q Bd7 d3 Ra2 f3 Be8 Kf4 e5 f2 e6 Qd7 Ra6 Kg3 Nc3 b1N Ra1 b2 Ra6 Na3 Bg6 b1Q Na2 Nb5 Bf5 Nd6 Nh3 Qb3 Ng1 h6 Kg6 h5 Nf3 h4 Bg4 h3 Qe2 d1Q Nb4 d2 Nh4 Bb6 Bf3 Qdc2+ Qe4 Qe7 Qf5 Nd7 Ra5 Bd4 Ba3 Nb6 Bb2 Rb8 a8Q Qd7 Kg5 Rh6 Qg6 Qf7 e7 Be6 c8R Bc5 Qh5 Rf6 Rd8 Rh6 Ng2 Rf6 Rg1 h1R Qe4 Rh2 Nh4+ Rg2 Rh1 h2 Qa8 Qg1 Qb7 f1B Ba1 Bfc4 Bd4 Qh7 Nc2 Qd1 Na3 Qdc2 Qc6 Re2 Qa8 Nh6 g8Q Qf8 Qh8 Ng8 Ba1 Rh6 Qb2 Bf2 Qa2 Qff7 Bh8 Rf6 Rf1 Bg1 Rf2 h1N Rh2 Nf2 Qd5 Ng4 Qe4 Qcc3 Qeb1 N4h6 Qe1+ Bf2 Qh1 Qcc2 Rc8 Ne8 Ng6 Na4 Be4 Bf5 Nh4 Bg1 Rd8 Ra6 Bg2 Bfe6 Ba8 Qf1 Bg2 Qhd3 Bf3 Re4 Kg6 Nb6 Kh7 Nd6 Kg7 Re2 Kf8 Qh7
3k2r1/4prb1/1n1b2R1/R3Q2N/qB3q1R/nb2nrrB/K2NP3/2QqN2n w - - 0 1 legal: proof: g4 c5 h4 a5 b4 axb4 d4 cxd4 g5 f6 Nc3 fxg5 Nb1 gxh4 Bg5 h3 Bh6 Kf7 Bc1 Ke8 Kd2 h5 c4 b5 Kc2 g5 Kb2 d5 a4 h4 f4 g4 f5 d3 c5 d4 a5 h2 a6 b3 c6 g3 a7 b4 c7 d2 f6 g2 Nf3 g1B Ra5 d3 Ra3 h3 Nd4 Bg7 Nc3 Nh6 Qc2 d1Q Nc6 d2 Qb1 Rf8 Ka1 b2+ Ka2 Nd7 Qf5 b1N Qe4 b3+ Kb2 Rf7 Qb4 Nb6 Qe4 Bf5 c8Q Ng4 Ne5 Ne3 Ra6 Na3 Nb1 Bf2 Qd4 Bg3 Nf3 Bc2 Ne1 Bd6 Qe5 Rb8 Qcc3 Qc7 a8R Kd8 Ra5 Qc4 R8a6 Qf4 Ka1 b2+ Ka2 Bf5 Qc4 Qa4 Qcc5 d1R Bd2 Bc2 Bb4 Rd3 Nd2 b1R Qcc3 Rc8 Qa1 Rbb3 Qc1 Nd1 Bg2 Rg3 Bf1 Rbf3 Bg2 Rf8 f7 Ne3 Bf1 Rg8 f8N Ra8 Nd7 Rb8 Rg1 h1N Nf6 h2 Bh3 Rc8 Nh5 Rc5 Qea1 Rf5 Qe5 Rf7 Ra7 Nf2 Rc7 h1Q Rg2 Qg1 Rc4 Nh1 Rd4 Qh6 Rg4 Qf4 Rg6 Qf1 Rh2 Qg1 Bc8 Qf1 Rh4 Qg1 Bh3 Qf1 Nd3 Qd1 Ne1 Bb3+
r1n1N2n/BQNqp2N/1R1QnPB1/1b2q3/1nr1R1Q1/2qr1b2/r7/1Kb4k w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 g4 Ke6 c4 Ke5 Kc2 h5 a4 d5 a5 b5 c5 h3 a6 d3+ Kb2 h2 c6 h4 g5 e3 f4+ Ke4 c7 d2 f5 e2 g6 e1Q a7 h3 g7 b3 f6 d4 Ra5 d3 Ra1 b4 Nf3 Qd7 Ne5 Ba6 c8Q Nc6 Qc2 d1B Bg2+ Bf3 Bg5 Nd8 Q8c3 Ne6 Bf1 Bb5 Q3d2 Nh6 g8Q Nf7 Qc8 Rh4 Qdc2 Qc3+ Kc1 Bh6 Ra2 Nh8 Na3 b2+ Kb1 Rg4 Qg2 d2 Bf4 d1R+ Bc1 Rd3 Rg1 h1Q Qc5 Qh2 Nf7 Qhe5 Qg5 h2 Qb6 h1R Qd6 Rh2 Be3 Rf4 Qg7 Rfh4 Bc5 Bc1 Ng5+ Kf4 Qh1 Rc2 Bg2 Kg3 Re1 Rc4 Re4 Rf2 Qg8 Rfd2 Qc8 Rf2 Qd1 Kh2 Nh7 Rc2 Bf1 Kh1 Qb7 Re2 Nc2 Rf2 Ra6 Rg2 Rb6 Rf2 Ka2 b1N Bd4 Nd2 Ne3 Rh2 Nf5 Re2 Ng7 Rh2 Rf4 Ne4+ Kb1 b3 Ne8 b2 Qa4 Rf2 Bh3 Rc2 Bf5 Rcd2 Bg6 Rf2 Qdc6 Nd6 Re4 Nc8 Qd6 Rh2 Ka2 b1N+ Bf2 Rb8 a8N Na3 Nac7 Nc2 Kb1 Nb4 Bg1 Ra2 Qd1 Bh5 Qg4 Rba8 Rc6 Qf5 Ba7 Qg5 Rb6 Qge5 Qf5 Bd1 Qg4 Bf3
3b3k/n1qP4/1pr1R2B/1q3QrN/RQ1rQq2/1N1bN2n/2bq4/2K1nBn1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 f5 e4 Kf7 d4 Kg7 Kd2 c5 g4 h5 e5 f3 a5 c3+ Kc2 c4 g5 f4 a6 h3 a7 b6 g6 f2 d5 h4 d6 f3 e6 h2 e7 h3 e8Q Nd7 Qd4+ Ne5 d7 b3+ Kd1 c2+ Kd2 b2 Ra2 c3+ Ke3 Rh5 Bb5 f1Q Ra3 f2 Qf7+ Kh8 Qd2 Nd3 Qe2 Qc7 Ba6 Be7 Qc4 Rg5 Qf7 Ne1 Bc4 Bd8 Ra4 Ne7 Nd2 b1B Ra3 Nc6 Qd1 Ba6 Nb3 Rc8 a8Q Na7 Ne2 Qg2 Qf4 f1Q Qae4 Qg4 Bd2 c1N Ra4 c2 Ned4 Ne2 Nf5 c1Q Qdc2 Ng1 Qcd3 Bc2 g7+ Kh7 g8N Kh8 Qfd6 Bb5 Qb4 Qgf4+ Kd4 Qe2 Kc3 Ba6 Be3 Qcd2+ Kb2 Bb5 Qdd5 Qh5 Bf1 Bbd3 Nf6 Qhe2 Bc5 Qh5 Bf8 Qhe2 Qf3 Qee5+ Qdd4 Qb5 Qde4 Qg3 Ne3 Qgf2 Nd4 Qh4 Qf2 Qcc6 Qef5 Qg3 Qe2 Rc7 Nc4 Qcf3 Bg2 Rc6 Nb3 Qc7 Qee5 Rg4 Qe3 Rd4 Bf1 Qff4 Qee4 Ne2 Rg1 h1N Rg6 h2 Nh5 Nf2 Rf6 h1R Re6 Rg1 Ne3 Nh3 Bh6 Rg2 Ng7 Neg1 Nh5 Qe2 Kc1 Rg5 Bg2 Qef2 Bf1 Qd2+
B1R2nn1/b1PnBq2/Qr1Rq2r/1K5B/5pbq/1N4Rq/2b1k2N/2Q1r1r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 a4 Ke4 g4 h5 e3 f5 c3 b5+ Kb3 d5 g5 h3 a5 f3 c4 h2 g6 d3 g7 d2 a6 f2 c5 d4 a7 d3 c6 h4 c7 h3 Qc2 d1N Ra5 Qh4 Nf3 Nd7 Ra6 Nb2 Nd4 Nc4 Ne2 Kf3 e4 d2 e5 d1R e6 Ncb6 e7 Rh6 e8B Bc5 Bf4 Re1 Bc1 Nf8 Na3 Nbd7 Rg1 h1Q Bg5 h2 Bh3 f1Q Kb2 b3 Kc3 b2 Qc1 b1Q Rd6 Qa2 Nb1 Qe6 Be7 b4+ Kd3 b3 Nd2+ Kf2 Rg3 b2 Bh5 b1B+ Kc3 f4 Ng1 Bc2 Ngf3 Ke2 Nb3 Rb8 a8Q Rb6 Bg2 Rc6 Qb7 Ba7+ Kb4 Qhf6 Ka4 Qff7 Kb5 Qf2 Qb6 Qhf1 Qb7 h1R Qa6 Rg1 Bh1 Qfh3 Nh2+ Qf3 Bg2 Qfg4 Be4 Ngf6 g8R Qh4 Bhg6 Qgh3 Rh8 Ng8 Bg2 Rc4 Ba8 Rc6 Bh5+ Qeg4 Qa4 Ne5 Bg6 Nf6 Rdd3 Ne6 Rhd8 Nf8 R3d7 Ng8 Rd6 Be6 Rc8 Ned7 Qa6 Qgf5+ Rd5 Qe5 Bh5+ Bg4 Rd3 Qe4 Rg3 Qee6 Rd6 Rb6+
n2bB2k/p1n1b3/5nRB/Pq1qK1Nr/r2Q4/1rqQ1N2/2n1b3/Nq1B2R1 w - - 0 1 illegal: No possible last move, all moves rejected
Q6K/1b1nrR2/n2BN3/b1rnnB1B/2Q5/p5PR/bkNq4/b1r1Qnn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 h5 c4 d5+ Kd3 Ke5 b4 f5 e4 a5 b5 h3 b6 h4 g3 f3 c5 a3 b7 a4 c6 f2 c7 a2 Qg4 a3 Be2 f1R Qg5 h2 Bd2 h3 Qh5 Na6 b8Q Ra7 Qh7 f4 Qb2 f3 Qc3 f2 Qh4 Rc1 Bh6 f1N Bd2 Bb4 Bg4 Rh5 Qc4 Ba5 Qe7+ Be6 c8Q Nf6 Q4c6 Nd7 Bb4 Rc7 Ke2 d3+ Kf3 Kd4 Kf4 d2 e5 d1N Bf5 Nf2 Q6a8 Ng4 Nc3 Ra7 Rb1 a1B Nd1 Bg8 e6 Nge5 Bd6 Rac7 Nb2 Kc3 Nf3 d4 Ng5 d3 Nc4 d2 Rb7 d1N Ne3 Rh7 Ra7 Kb2 Nc2 Nde3 Ke4 Rc3 Qc4 Nd5 Qe8 Rg7 e7 Rf7 Ne6 Rg7 Rg1 h1N Kd4 Nf2 Rh1 h2 Rc7 Nh3 Ra7 Nde3 Ke4 Ng1 Kf4 Rh7 Kg5 Rf7 Kh6 Nd5 Rc7 Rf6+ Kg7 Rf7+ Kh8 Rg7 Qh5 Rf7 e8B Re7 Qhe2 Bf7 Qe1 Bg8 Qh4 Rc5 Beg6 Qb8 Bf7 Qb4 Qc4 Qd2 Bh5 Nh3 Rg1 h1B Ra7 Bf3 Rh1 Ng1 Rc7 Ndb4 Rh3 Bb7 Rc8 Nd5 Rf8 Bd8 Rf6 Ba5 Rf7 Bh7 Ncd4 N7b6 Bfg4 Bb1 Bf5 Nbd7 Nc2 Ba2
1BbK2Bn/1NQR1b2/3r4/n3b1P1/n1B4n/3QqkNr/1pn1r2R/nrQ5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 h5 e4+ f3 a4 b5 a5 f5 e5 f4 a6 h3 a7 h2 g3 d3 e6 h4 c5 h3 e7 d2 Kd6 b3 c6 b2 c7 b4 Qb3 d1R+ Qd5 b3 Ra4 f2 Qd4 Nc6 Bb5 f1N Ne2 Ne3 Qd2 Na5 Nbc3 b1R Bc4 f3 Ng1 b2 Nce2 f2 Nf4 f1N Ra1 Bg7 e8B Nh6 Ra2 Nc2 Bb3 Be5+ Kd5 Qe7 Qd4 Nd2 Qc5 Nf7 Bc4 Ndb3+ Nd3 Nba1 Ne2 Kf3 g4 Rh4 g5 Nh8 Bf4 d6 Re1 h1N Bf7 h2 Ng3 Rh3 Bg8 Rd2 Rd1 Re2 Ra3 Rb8 a8Q Rb6 Qa6 Rc6 Nh5 Ng3 Rc3 Nf5 Ng3 h1B Qca7 Bd7 c8Q Nh4 Qac7 Bg2 Rh1 Bg4 Rh2 Bf5 Q8b7 Bc8 Qbb6 Qe8 Qg1 Bh1 Qc1 Qe7 Qb8 Qa7 Rb3 Qe3 Rb7 Bg2 Rd7 Rb6 Ke6 d5+ Ke7 d4 Ba2 Rd6 Nc5 d3 Kd8 d2 Bac4 d1N Qc7 Nc3 Nb7 Na4 Qb5 Kg4 Qb3 Bd5 Qa3 Bf7 Qd3 Qf2 Be3 Kf3 Ba7+ Qe3 Bb8 Rc6 Nh5 Rf6 Ng3 Rd6
5rn1/Rq1B2kN/4n3/b2r2Pr/K1p3Q1/n1N1B3/1r1r1N2/RbrRQ1bb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 c5 a4 f5 g4 Kf7 d4 h5 Kd2 b5 Kc2 h3 g5 h2 e5 f3 d5 f2 d6 c3 Kb3 c4+ Ka2 b3+ Ka3 b2 e6+ Kg7 e7 f4 e8R h4 a5 b4+ Ka4 c2 a6 b3 a7 f3 d7 h3 Be3 c1B Nd2 b1R Be2 f1R Ra2 b2 Kb5 f2 Qb3 Rh5 Ngf3 Qb6+ Ka4 Rd1 d8Q f1R Qc7+ Nd7 Ng1 Rf5 Qf4 Bc5 Qg4 Nf8 Ne4 Qb7 Ra1 Bd2 Qb4 Rd5 Nf6 Bf5 Nh7 Ne6 Bd3 Rc8 a8N Bc3 Be4 R1d2 Nc7 Rc1 Qa5 b1N Nb5 Na3 Qb4 Bg6 Bf5 Ba7 Qb1 Ba5 Nc3 Rcc2 Qbd1 Rb2 Qe1 Ra8 Rd8 Bc5 Rd6 Rf8 Ra6 Bcb6 Ra7 Bd4 Nf3 Bc5 Rg1 h1R Ne5 h2 Nd3 Bd4 Rf1 Rg1 Nf2 h1B Qee2 Bc5 Rfb1 Rc1 Qe1 Rcc2 Rd1 Rc1 Qf3 Bcb6 Bg4 Bb1 Qg2 Nd4 Bd7 Ne6 Qf3 Bc7 Qe4 Bh2 Qg4 Bg1
nb6/5Q2/1rQ1n2p/2b1BrRK/1r4NB/bRbP4/bn1kbN1r/N2B1q2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 g4 Kd5 f4 Kd4 a5 c5 f5 b5 g5 e5 f6 e3 Kf3 c3 g6 b3 g7 c2 f7 e4+ Kf4 b4 a6 b2 a7 h3 Bb5 e2 Be8 Kd3 Qf1 h6 Rh2 c4 Ra4 e3 Ra2 b3 Bc6 c3 Kg3 Nd7 Kg4 Ba6 Ba4 Rb8 a8N Nc5 Bc6 Rb6 Ba4 Ne6 Nf3 Bc5 f8B Ne7 g8Q Nd5 Qg2 e1B Qg1 e2 Kh5 Qf6 Q1g5 Ndc7 Ng1 Bg3 Na3 b1R Rh1 e1B Bg7 h2 Qf7 b2 Nh3 Qf1 Qgf6 Rf8 Rg1 h1R Q6g6+ Ke2 Be5 Rh2 Qe4+ Kd1 Qc6 Bf4 Rg4 Be2 Ra1 Rb4 Nb6 Na8 Nd5 Bfg3 Nf6 Bf4 Bd4 Bb8 Be5 Rb6 Qf3 Rb4 Rg5 Rb6 Ng4 Rb4 Qe8 Rf5 Qfc6 Rb7 Qf7 Rb6 Ra2 Ra1 Bb3 b1B Rb2 Ba2 Ba4 Rb1 Rb5 Rf6 Rf5 Rb3 Bg3 Rb2 Bh4 Rb1 Rg5 Rf5 Rb4 Rb3 Bb2 c1B Rb5 c2 Be5 Bb2 Rb4 c1N Nc2 Nd3 Na1 Ba3 Nf2+ Kc1 Rb5 Nb2 d3 Bc3 Rb4 Kd2 Rb5 Rb4 Bd1 Rc4 Rb3 Rcb4
1Q1N4/2n1R1bN/1nP2R1N/1q1nR1r1/b1rp2BQ/4Bnrn/3n3k/bK4b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 h4 f5 a4 d5 h5 b5 c5 d3+ Kb2 f3 h6 f2 a5 d2 h7 Kf4 a6 Kg3 a7 f4 e5 f3 e6 b3 e7 b4 e8R Qa5 Re3 Qb5 Re4 Nd7 Bc4 f1N Be2 f2 Qe1 Ngf6 Nc3 d1N+ Kb1 b2 Re6 Nfe3 Rea6 Ne8 Rh4 Bg7 Bf1 Nc7 Qe2 Rg8 h8Q Nb6 Rh6 Bd7 Re6 Rac8 Bg2 f1N a8N Nf2 Na2 Nh2 Rf6 Nh3 Rf7 Nf3 Qd3 Kh2 Rf5 g3 Qb3 g4 Ne2 Be8 Bf1 g2 Qh4 g1B Nac3 g3 Nd4 g2 Ne4 Bf2 R6a5 g1B Be2 Bg3 Rf7 B3e5 Nf5 Bc3 Bd2 d4 Nh6 Ned5 Rf6 Bc6 Be3 Bd7 Ka2 b1N Ng5 Nbd2 Re1 Ba1 Nh7 Bc6 Qb2 Nb3 Kb1 Nc1 Qc3 b3 Qb4 b2 Bd1 Nb3 Be2 Na6 Nc7 Bd7 Ne6 Nac7 Nd8 Be8 Kc2 b1R Ra7 Rd1 Rb7 Rd3 Kb1 Na6 Re7 Nac7 Qa5 Rc3 Qa7 Rc4 Qb7 Ra8 Qc8 Ra2 Bd1 Rg2 Qb8 Rg3 Re5 Qa5 Be2 Ba4 c6 Qb5 Re7 Bf8 Re5 R8g5 Bd1 Bg7 Re7 Ne5 Bg4 Nf3 Bf2 Nca8 R1e5 Nac7 Be3 Nbd2+
R2Qnn2/2bpR1r1/1B3NB1/rb2rRn1/1b1BN1bn/qKPQ4/3b4/3k1b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Kd6 a4 Ke5 h4 b5 c3 g5 Kc2 f5 a5 f3 a6 f2 h5 f4 h6 g3 a7 d3+ Kb2 g2 h7 d2 Rh5 b3 Qf3 d1B Be2 f1R Rh3 b4 Qg4 f3 Nd2 f2 Rd3 Re1 Rb1 f1B Rd6 Nc6 Ba6 Qa5 Rh6 Nce7 Qh4 g4 Qh2+ g3 Rb6 Kf4 e5 Ke3 e6 Nf6 Rd6 Bg4 Qh1 Ng6 e7 Rg8 h8B Ne8 Bd3 Rg7 Qh4 Ba6 Ne2 g1B Rc6 g2 Rb6 Bh2 Bc4 g1B Rb7 Bc7 Qh1 Bb5 Qh7 Kf2 Nf4 Re5 Rb6 Ke1 Rb7 Be3 Bf7 Kd1 Ne4 Bd2 Nd5 Qa6 Ndf6 Qa4 Ra1 Qa3+ Kb1 b2 Rb6 Rd8 a8Q Rc8 Qa5 Ra8 Rd6 Ra7 Qb6 Ra5 Rd5 Nd6 e8R Be7 Rc5 Nf8 Ra8 Ne8 Bg6 Rd5 Qb8 Rf7 Qh3 Ke1 Kc2 Bdf4 Bh5 b1N Nh7 Nd2 Nf2 Nf3 Qd8 Ng5 Bg6 Ke2 Bf6 Rg7 Qd3+ Ke1 Ra2 Rf5 Be3 b3+ Kb1 b2 Kc2 b1N Re5 Bfh3 Ne4 Nd2 Bb6 Bb4 Re7 Ndf3 Bfd4 Nh4 Nhf6 Bf1 Rb2 Re5 Ra2 Qc1+ Kb3 Qa1 Rg2 Bd2 Rf2 Kd1 Rf5 Qa3#
Krq5/Rn2QB2/1N1r2n1/n1R2n2/B4Bp1/q1bP1nrk/2Rn4/1rQbN3 w - - 0 1 illegal: No possible last move
2B4k/2rn1bR1/1Q2NBn1/b5Qn/1Npr3b/1r1N4/q1PKn1Bn/b2R1r2 w - - 0 1 legal: proof: f4 h5 e4 a5 g4 hxg4 b4 axb4 e5 d6 Ne2 dxe5 Ng1 exf4 Bh3 f3 Bg2 Qd5 Bf1 Qd8 h4 b5 a4 f5 d4 Kf7 d5 c5 h5 g5 a5 Kg7 a6 e5 d6 b3 d7 b4 a7 c4 Bb2 f2+ Ke2 g3 Ra2 f4 Ba1 b2 Qd3 g4 Rh3 g2 Ra4 g3 Kd2 e4 Qb3 e3+ Ke2 f3+ Kd1 e2+ Kd2 e1B+ Kd1 Rh7 h6+ Kh8 Ra6 Be7 Be2 f1N Ra4 f2 Bh5 Bh4 Qa2 b3 Ra3 Qa5 d8N Rc7 h7 Be6 Bf3 Nd7 Bb7 Bf7 Nc3 Nh2 Qb1 f1N Nd5 Ne7 Nb4 Ng6 Ne2 g1N Nf4 g2 Nfd3 Ng3 Ne6 Rd8 a8B Nh5 Bc8 Ne2 Rg3 g1B Bg2 Bd4 Qc1 Qa7 Qg5 Bec3 Ra5 Bf6 Rd5 Qa2 Rg4 Bfd4 Rg3 Bb6 Rd6 Ba5 Rd5 Bf6 Kd2 b1R Bd4 Bg7 Bf6 b2 Rf5 Qa3 Be7 Ngf4 Qh6 Nc5 Ng5 Qa2 Qb6 Bf6 Rg4 Kg7 Rg3 Rd5 Bd8 Nd7 h8Q+ Kg6 Qe8 Kg7 Qe7 Kh8 Ne6 Bd4 Rg7 Ng6 Rf2 Re1 Rf4 b1R Qg5 Ba1 Bf6 Rd4 Rf1 Rb3 Rh1 Rf1 Rg1 Rff4 Rd1 Rf1
1B1Qbb1n/q2q1k2/2B2r2/BN1bP3/5rb1/3b1b1R/n1QNn1pQ/R1n4K w - - 0 1 illegal: No possible last move
1bB1B3/R6q/qn2nnQQ/4Pr1R/n1p1q2K/N1r4b/n1q1nN1k/R1B5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 a4 Kd6 e4 Ke5 g4 h5 a5 c5 g5 b5 d3 f5 g6 f3 g7 b3 a6 b4 a7 c3 Ra5 h3 Kg3 f4+ Kh2 h4 Ra1 c2 Ba3 c1N Nc3 b2 Qc2 b1Q Qd2 b3 Qe1 f2 Bg2 f1Q Bf3 b2 Bg2 f3 d4+ Kf4 d5 f2 e5 Qa6 d6 c4 d7 Qe7 d8Q Rh5 Nd1 Nc6 Qe2 Qc2 Be4 b1N Qf1 Nc3 Ra2 Nf6 g8R Na4 Bg2 Qeh7 Qd6 Nd4 Bf3 Ne6 Rg6 Rf5 Ra1 Na2 Qg2 Bd7 Qb6 Bd6 Bc6 Bb8 Nf3 Bc8 Ne1 f1N+ Kg1 Bd7 Nf2 Ne3 Kh2 Ned5 Rg7 Bc8 Be8 Bd7 Qc6 Ndb6 Qg6 Bc8 Kg1 h2+ Kg2 Bd7 Kh3 Bc8 Rg1 h1N Rg5 Ng3 Rh5 Ne2 Bc1+ Qd2 Kh2 h3 Nc2 Bd7 Na3 Bc8 Kh1 h2 Kg2 Bd7 Kh3 Bc8 Bb2 Qc2 Kh4 Bd7 Qd6 Kf3 Bc1 h1Q+ Nh3 Qe1+ Nf2 Bc8 Rb7 Bd7 Qh6 Kg2 Qg6+ Kh2 Qf8 Bc6 Qfh6 Bg2 Rc7 Bh3 Re7 Bd6 Rg7 Rd8 a8B Bb8 Bb7 Rd3 Bc8 Rc3 Rb7 Qh1 Ra7 Qhe4+
1nb1B2r/n3b1b1/nrQ2bR1/1Np1q3/Q4bKN/B3R1BP/5rnQ/r4k2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kd6 e4 f5 a4 c5 e5+ Kd5 a5 Ke4 a6 b5 d5 g5 h3 c3 d6 f3 Kg3 f2 e6 c2 d7 f4+ Kg2 f3+ Kg3 b3 e7 b4 e8Q+ Ne7 a7 b2 Be3 c1B Na3 b1R Qd2 b3 Qa2 b2 Qef7 Nec6 Qe8+ Qe7 d8B Qe5+ Bf4 Be7 Ba6 f1N+ Kf2 g3+ Ke1 f2+ Ke2 g2 Bc4 g4 Bb6 g3 Nf3 g1B Qf7 g2 Bh6 Bf4 Bc7 Ne3 Bb3 f1R Nh4 Na6 Qf6 Ncb8 Bf7 Bgh2 Qd6 g1B Nb5 Ng2 Be8 Bd4 Qa4 Bfg5 Ra3 Bgf6 Bd2 Bf4 Rg1 Ra1 Bc1 b1N Rg3 Na3 Rg6 Rf3 Rf1 Rb3 Rf3 Rb4 Rb3 Bc3 Kf2 Rf8 Qc6+ Kd3 Kf3 Rf7 Bb2 Kd2 Bc1+ Ke1 Qd6 Bd4 Re3+ Kf1 Qc6 Bg7 Bb2 Rf5 Kg4 Bc3 Nd6 Rb6 Nb5 Qd5 Bc1 Bcf6 Qd6 Qe5 Qd2 Nc2 Ba3 Ncb4 Qb2 N4c6 Bd6 Ne1 Qh2 Ng2 Bc7 Nd7 Bd6 Rab8 a8Q Na7 Qb7 Ra8 Qc6 Ndb8 Rh6 Bg3 Rg6 Rf2+ Qd7 Bf4 Bc7 Bb7 Qc6 Bc8+ Nf5 Qe4 Rb3 Be3+ Qf4 Be6 Bf7 Nd7 Rc3 Rf8 Be8 Ndb8 Be5 Qd5 Qh2 Rh8 Bg3 Bf4 Rf3 Bc8 Re3 Nd7 Nh4 Qe5 Qd5 Ndb8+ Qe6 Bb7 Qc6 Bc8+
3Qr1RQ/1B1b1kq1/B1r2nn1/1P2n2q/1RN4b/N4N2/n1p4r/nrn1B2K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 d4 c5 e4 a5 g4 f5 Kg2 h3+ Kh2 a3 b4 c3 b5 a4 e5 c4 e6 f3 g5 f4 d5 c2 g6 a2 e7 c3 d6 f2 g7 f3 d7+ Kf7 e8N a3 Be3 c1N Qc2 h4 Nd2 Ne7 Bd3 f1R Nb1 f2 Nf3 Ng6 Qb2 c2 Bd4 Rh6 Be2 Be7 Bf6 Qc7+ Qe5 Nc6 d8Q Bd7 Qg3 Nce5 Rg1 Qb7 Kh1 h2 Kg2 h1R Qg4 h3+ Kg3 h2 Kg2 Rd1 Qd4 f1N Qc3 Ng3 Bh4 Ne4 Be1 Nf6 Bd3 Qa7 Be4 Rd6 Bb7 Rc6 Ba6 Rh7 Nbd2 Qb7 Rb1 a1N Nc4 a2 Rb4 Nab3 Na3 a1N Qb2 Na2 Qc3 Nbc1 Nd6+ Ke6 Ndc4 Kf7 Qd4 Rh5 Qh8 Re8 g8B+ Kf8 Bh7+ Kf7 Qb6 Rh6 Qd8 Rh4 Kf2 Rh5 Rg5 Rf1+ Kg3 h1Q Rg4 Qh4+ Kg2 Rh6 Rg5 Qh5 Rg4 Ng8 Rg3 Bh4 Rg5 Nf6 Kh2 Rf2+ Kh1 Rd2 Rg3 Rd3 Rg5 Rb3 Rg4 Rb1 Rg5 Nf4 Be4 Qa7 Rg8 Nfg6 Bd5+ Rce6 Bc8 Qf5 Bcb7 Qc5 Qb8 Qf8 Ba6 Bf2+ Nh2 Qg7 Bdb7 Rc6 Qc8 Rh3 Qc7 Bh4 Qb6 Qh5 Qd8 Rg3 Nf3 Rg2 Qh6 Re2 Qh8 Rh2+
rQr2r2/4N1r1/1N3n1P/2qn1K1R/b2n2Rb/B2R2B1/pn1Qnq1n/k4B2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Ke4 a5 h4 d5+ Kd3 Ke5 e4 f5 c4 g5 b4 g3 h5 f3 b5 g4 c5 f2 h6 f4 b6 f3 c6 g2 b7 a3 c7 a2 Ne2 g1Q Qd2 g3 Bh3 f1R Na3 f2 Bd7 g2 Nf4 a4 Rh5+ Qg5 Ne2 Be7 Qa5 Nc6 b8B Nf6 Be3 Nb4+ Kd2 d3 Qb6 d4 Nb5 a3 Qa6 Nbd5 Bc6 Bd7 Na7 Rc8 Rc1 a1R Ng3 a2 Rd1 Rc1 Bb7 Ba4 Qa5 Rb1 Ba6 Rb7 Bc4 Qh2 Qb4 g1N Nf5 Bd8 Ne7 Nf3+ Kc1 d2+ Kb2 d3 Bc5 Kf4 e5 Ke4 e6 Qe3 Bd6 Qc5 Bg3 Kd4 Bd6 Rh1 Rg1 f1N Rg4+ Ne4 Bg3 d1N+ Kc1 Qf2 Qd2 N1h2 Bd6 Qb6 Ba3 Rf1 Ba6 Nf4 Bc4 Nf6 Bb5 Ne3+ Kb2 Ke4 Kc3 Ned5+ Kc4 Qbe3 Ba6 Nd4 Kc5 Ndf3+ Kd6 Kd4 Nac6+ Ke4 Ne5 Kd4 Nd7 Rba7 Nb6 Rb7 Qe2 Kc3 Qd2+ Kb3 Bb5 Ne2 Ba6 Nh4 Bb5 Qc5+ Ke5 N4f3+ Kf5 Rba7 Ng8 Rb7 e7 Rba7 e8Q Be7 Qf4 d2 Bd3 d1N Qd2 Bd8 Ne7 Nb2 Qb5+ Qb4 Nc6 Ne4 Qf4 Bh4 Qa6 Qg2 Qg5 N2g3+ Kg6 Nd4 Nd8 Rf8 Nc6 Qf2 Qb7 Ndf3 Bc4+ Kc2 Bf1 Kb1 Qd2 Rce8 c8R Ne2 Bg3 Nef6 Kf5 Ka1 Qb8 Rg7 Ne7 Rd8 Rc5 Rc8 Rc3 Qbc5 Rd3 Nfd4+
b5bR/n3R1bQ/1rN1P1Qq/BnrNp2b/5B1Q/3B2n1/1r1b3n/r3K1k1 w - - 0 1 illegal: No proof kernel
K1N2b2/1B1r2n1/n3p2r/B2R4/1n1BRr1P/qb1rr1NQ/3Q1rQ1/1k1q3n w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 d5 h4 g5 a5 b5 c5 b3 c6 b2 c7 d3+ Ke3 b4 Kd4 d2 Kc5 e3 Kb6 Ke4 f5 e2 a6 Kd3 f6 g3 a7 d4 f7 b3 Ra4 g2 Qe1 Kc2 Ra3 d1Q Be3 d3 Ra4 g4 Qa5 e1R Bd2 g3 Qf5 Nh6 Bc3 Re3 Ba5 Na6 Qe6 d2 Re4 Nf5 Rg4 Rh6 Rg5 Ng7 Nc3 b1N Ne4 b2 Rf5 Qd6+ Kb5 Qa3 Kb6 Nc3 Rh2 Kb1 Qd6 Be6 Kb7 Rd8 c8Q Na2 a8Q N2b4 Ne2 g1R Bg2 Bb3 Rd5 Rf1 Qh3 e6 Qd7 Rff6 Nd6 Rf4 Nc8 Rf2 Bh1 g2 Ng3 g1N Qd6 Rf4 Re2 Rf2 Ka7 Rd7+ Qb7 Rf4 Ka8 Rf2 Re1 Ne2 Qbc6 Ka2 Qf4 b1R Qc2+ Rb2 Qf3 Ka1 Qfg2 Rf4 Qc3 Kb1 Qd4 Bc5 f8B Rc2 Be7 Bd6 Bf6 Bf8 Qc3 Ra2 Bd4 Rb2 Nh5 Ng3 Re2 Qf1 Re1+ d1R Re2 Rdd3 Qd2 Qd1 Re1 Ne4 Ng3 Nf2 Qg1 Ref3 Re4 Rfe3 Bf3 Ra2 Qgg2 Nh1 Bh5 Rb7 Be8 Re7 Bc6 Rd7 Bb7 Rc2 Qc3 Rce2 Qd2 Ref2
q3N1nQ/2R2Qr1/P3n1nq/3n1B2/3p2rn/1n2NBk1/1BR1q2q/1b2bKN1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 Ke7 c4 Ke6 g4 Ke5 a4 d5 g5 b5 a5 h5 c5 f5 g6 f3 g7 h3 c6 d3 c7 h4 a6 f4 Kf2 d2 Na3 h2 Qe1 d1Q Nc2 b3 Qa5 h3 Be2 b2 Bd2 b1N Nd4 b4 Bd3 b3 Bc2 b2 Qb6 Ra7 Qg6 Rh4 Be1 Bf5 c8B Rg4 Ra5 Bb4 Qh7 Nc6 Kf1 f2 Bd7 Nce7 Be6 Nc3 Qh5 b1N Bb3 Na4 Bf7 Nbc3 Ne6 Ng6 Nd4 Qa8 Qg5 Nc5 Ra4 Ne6 Nc2 d4 Qd8 Nd5 Ne2 Rd7 Rg1 h1Q Ra2 h2 Ne3 Qc2 Qe7 Qf3 Ba4 h1Q Bc3 Qh6 Bb2 Be1 Bc6 Qfh1 Be8 Q1h2 Rg3 Qd1 Ng1 Qf3 Qf7 Qfg2+ Ke2 Rb7 Rf3 f1N+ Rf2 Rc7 Bed7 Nd2 Ra4 Ra7 Rc4 Nb3 Rc5 Qf3+ Kf1 Qd1 Rc1 f3 Rfc2 Kf4 e5 f2 Bb7 Qd2 Rc7 Kg3 R1c2 Ndf6 Bf3 Nd5 Rc1 Bb1 R1c2 Nh4 Bc8 Nde7 Bd7 Neg6 Bc8 Ng5 e6 Qd1 e7 Ne6 e8N Qd3+ Be2 Qde4 Bf3 Rb7 Ke2 f1N+ Bg2 Qf5 R7c5 Rb8 Qb7 Nef8 Nc4 N8e7 g8Q Ne3 Qh8 Qe4 Bf5 N3d5+ Kf1 Ne6 Bf3 Ng8 Qe7 Rd8 Rc7 Rd7 Qef6 Rh7 Qf8 Qee3 Qf7 Qed2 Ne3 Rg7 Qh7 Qd1 Qh8 Qde2+
5QK1/BnRbbrp1/3N3r/N2n1P1Q/1N4n1/R1n1bB2/n2q2Q1/2kqb2n w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 f4 Ke6 c4 Kf5 h4 d5 a4 e5 c5 b5 a5 e3+ Kd3 e4+ Kc2 e2 Kb3 e1B c6 e3 a6 Ke4 h5 e2 h6 d3 a7 d4 c7 g3 h7 g2 f5 d2 Ra5 Kd3 Nf3 g1B Ra1 Na6 Rh4 Be7 Ng5 Nh6 Rh5 Ng4 Ra4 Nc5+ Kb2 b3 Nc3 b4 Bg2 Nb7 Rh1 Bd7 c8N Be3 Nb6 Rc8 a8Q Rc7 Kb1 b2 Ka2 b1N Ncd5 Nc3+ Kb3 Na2 Ne4 Bc5 Bf3 Be7 Kb2 b3 Nc4 B7g5 Ka3 b2 Kb3 b1N Ned6 Nbc3 Na5 Bgh4 Ra3 Be7 Nb6 Nd5 Bb2 Rf8 h8Q Rf7 Qf8 Rc6 Rh4 Bg3 Qh1 e1Q Rh6 d1N Qh5 Kd2 Rf6 d3 Bd4 Nf4 Nd5 Kc1 Nb4 d2 Ba7 Ndf2 Re6 Ra6 Kc4 d1N Re5 Qg1 Rc5 Ndc3 Rc6 Qd1 Rc7 Nc5 Qc6 Nh1 Qb7 Be1 Qe4 B3d2 Qe2 Nb7 Qg2 Nfd5 Kd4 Ngf2 Ke5 Be3 Nac6 Be8 Ke6 Ng4 Na5 Nb6 Ndc4 Q8d2 Nd6 Nd5 Nb3+ Kb2 Na5 Bc6 Nc8 Kc1 Qd8 Rf8 Qde8 Rg8 Kf7 Bd7 Qd8 Rg6 Nd6 Rh8 Qa8 Rhh6 Kg8 Rf6 Qf8 Rf7
2RN1r2/1qbP3K/p2r4/2r2Q1b/Bnn1QQr1/B1k1b1N1/4R2b/4rqRr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 h5 d5 c5 g5 f5+ Ke5 c3 e4 a6 b3 c2 g6 c4 g7 h3 d6 a3 Nc3 h2 Bd3 h4 Nce2 f3 Kf4 h3 e5 f2 e6 f1Q+ Nf3 c3 e7 a2 Kg5 f4 Kg6 Nf6 e8Q Bg4 g8Q Nbd7 Qd2 Qb6 Bc4 Rd8 Be6 Nd5 Bb2 c1R Rb1 a1B Qc2 Bh5+ Kf5 Qb7 Nfd4 f3 Qg4 f2 Ng3 N7b6 Bd7 Nc4 Qf4 Rg8 Qee4 Rg4 Rg1 h1R Ba4 h2 Ne6 Bg7 Qcd3 c2 d7 Be5 Qdf3 Bc7 Qfd3 Re8 Nd8 Re6 Rg2 Rd6 Ba3+ Ka5 Rb2 Nb4 Rg1 Re1 Ra2 c1B Re2 Be5 Qdf3 Rg7 Q3g4 Be3 Qg6 Rg8 Kg5 Rf8 Kh6 Rf5 Kh7 Rg5 Rg2 Rg1 Qgf5 h1R Qh4 Rh3 Qhf4 Rgh1 Rg1 Rh4 Qff3 Rhg4 Q3f4 Na2 Bb2 Kb4 Ba3+ Kc3 b4 Rc6 b5 Nb4 b6 Rgg6 Bb3 Rc5 Ba4 Rd6 Qf7 Qc6 b7 Qb5 b8R Qb7 Qg5 B5f4 Rc8 Be5 Nf5 Bh2 Qgf4 Qh3 Ng3 f1R Qf4f5 Rff4 Qf8 Qf1 Q8f7 Rg8 Qf8 Rfg4 Qh6 Re8 Qhf4 Rf8
b1k1rN1n/2bN2bb/b2B1rp1/4bQR1/5bQR/n1R1q2N/5bP1/Kn3B2 w - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 h4 axb4 h5 f5 h6 fxe4 Be2 Qd6 Bd3 Qxh6 Bf1 Qh2 d4 Kd7 Kd2 c5 Kc2 h5 Kb2 b5 f4 e5 a4 b3 a5 b4 d5 h4 f5 e3 a6 h3 f6 e4 f7 e2 d6 e1B a7 e3 Qd2 e2 Na3 c3+ Kb1 b2 Qd1 c2+ Ka2 b1B+ Kb2 c4 Qd2 b3 Qc3 Rh6 Nb5 Bf2 Ra3 e1B Qb4 c3+ Ka1 Qe5 Nc7 h2 Bd2 c1B Be3 c2+ Bd4 Rf6 Nb5 Nh6 Qc5 Ba5 Be2 Na6 Ra2 Nb4 Qc3 Bc7 Qf3 Qe3 Bd1 Ba6 Qg3 Re8 a8N Kc8 Nh3 Ba3 Qf4 c1B Be5 Bh7 Rc2 g6 Be2 Bg7 f8Q Nf7 Nd4 Nh8 Bf1 Bd2 Ne6 b2+ Kb1 Bc1 Rc3 Nc2 Qg4 Bc5 Ka2 Na3 Bf4 b1B+ Ka1 Be4 d7+ Kb8 Bg3 Bd4 Bd6 Be5 Nb6 Ba8 d8R+ Kb7 Nd7 Bd2 Rg1 h1N Rc8 Ng3 Rh1 Ne4 Rd8 Rf3 Qff5 Bc1 Nef8 Nd2 Rc8 Ndb1 Rh2 Ba5 Rc5 Bc7 Ng1 Bd2 Rh4 Kc8 Nh3 Rf4 Qe4 Rf6 Rb5 Beg3 Rg5 Be5 Qgf5 Qa7 Qef3 Bdf4 Q3g4 Qe3
3nkN2/8/1Bb3N1/n1QBqq1R/rbb3r1/1p1bK1B1/3Pn2n/q1Q1qR1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 e4 b5 h4 c5 a4 f5 e5 f3 h5 g3+ Ke3 g4 h6 c3 a5 c2 e6 b3 h7 b4 a6 g2 a7 f2 e7 b2 Ra5 g3 Ra1 f4+ Ke4 b3 Ra2 c4 Nc3 b1B Rh2 f3 Nd5 c3 Ba6 f1B Nb6 f2 Ra3 Qd6 Bc4 Bd7 Qe1 Nh6 Ra1 Nf7 Ba3 c1N+ Ke3 c2 Nd5 Nd8 Ne2 g1N Ndf4 g2 Ng3 Bc6 Ng6 Rg8 h8B Nf3 Bc5 g1Q Rh5 Ne2 Bd5 c1Q Nh1 Bd3 Bb6 Nh2 Be5 Qc7 Bg3 Qe5+ Be4 Qcc3 Qc1 Qf5 Bd5 Qb2 Nf4 Rg4 Ng6 Qbe5+ Be4 Kf7 e8N Bb4 Nc7 Bc4 Ne6 Ke8 Ra4 Bb7 Ra6 Nbc6 Ra1 Na5 Nef8 Bc6 Rb1 Bh3 Ra1 Qe1 Rb1 f1Q Ra1 Rc8 a8Q Rb8 Qa6 Ra8 Qb5 Ra7 Qc5 Qg1+ Nf2 Bf1 Rb1 Nab7 Ra1 Ra4 Rb1 Na5 Ra1 Qg2 Nh1 Qh3 Rb1 Qh4 Ra1 Qhf6 Rb1 Qa1 Bd5 Q6e5+ Be4 Qd1 Qb2 Nc3 Rc1 Bfd3 Qc2 Qc7 Bd5 Ne2 Qb1 Qc2 Qb2 Qcb1 Rf1 Qe1 Qc1 Qce5+
K3rk1q/2n2q1n/Qr2bR2/Bbb2qQn/4pBR1/q2nPbN1/2N5/6QN w - - 0 1 illegal: No possible last move
r2br3/4Nbk1/n3n3/R4QN1/PqbbBK2/4B2q/pB1n1N2/RqQq1n2 w - - 0 1 illegal: No proof kernel
KnN4q/5k2/b1Rr2r1/3qQp1n/5b2/N1N4Q/B1RBP2r/1Qqrqnn1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 f5 g4 h5 a4 b5 c4 h3 a5 d3 g5 b3 g6 b4 a6 h4 a7 d2 g7 d4 c5 h2 c6 h3 c7 b2 Ra5 d3 Ra4 b3 Qe1 d1R Qh4 d2 Rc4 Bd6 Bg2 Nf6 Rc6 Ba6 c8N Kf7 Nc3 b1Q Qe1 Nh5 g8Q+ Kf6 Qd5 b2 Qa5 Kf7 Qe5 Rh7 Kf2 f3 Ke3 f2 Kd4 f1N Kd5 Qh8 Nf3 Rg7 Qh4 Rg6 Ne1 Bc7 Rg1 h1R Nc2 h2 Na3 Qe4+ Kc5 b1Q Qh3 Qh4 Be4 Qe1 Bd3 Qa2 Bb1 Qe6 Ba2 Qd5+ Kb4 Rd6 Rg4 Rg1 Rgc4 h1N Ka4 Nf2 R4c5 Bd8 Kb4 Bg5 Ka5 Bf4 Kb6 Rgg6 Rc4 Nd7+ Kc7 Rb8 a8Q Rb3 Qb7 Nb8 Qb4 Rb1 Kb6 Rb3 Ka7 Rb1 Qd3 Nh3 Ka8 Ng1 Qb6 Rb4 Rc5 Rd4 Qh3 Rd3 Qb1 Rdg3 Ne4 Rg2 Rc2 Rf2 Nc3 Rh2 Bb2 Rc1 Ba1 d1Q Bb2 Qdd2 Ba1 Qe3 Bb2 Rd1 Bc1 Qb6 Be3 Qb2 Bd2 Qc1
1B2r2q/2BQ4/1qn1Nb1N/1RP1Q3/K3B1p1/1Q1bqnbq/3Rbn2/1r4kn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 Kb3 d5 h4 f5 a4 b5 c5 d3 h5 Kd4 e5 d2 a5 Ke3 a6 Kf2 e6 d4 e7 g3 e8Q f3 h6 f4 a7 g2 h7 d3 Ra6 g4 Rd6 Nd7 Rh5 Ne5 Rf6 Bf5 Rhh6 Rb8 a8Q Be7 Ne2 g1B Qb7 Bh2 Qa7 Bg3 Nd4 Kg1 Qa1 f2 Rf7 f3 Qd7 Bf6 Rg6 Ne7 Rgg7 Re8 h8B N7c6 Be2+ f1Q Qa8 f2 Qe7 Nf3 Qc2 d1B Nd2 Qh3 Ne6 f1N Ne4 d2 N4g5 Bd3 Qa4 Qd4 Qd6 Qe3 Qe5 Rb7 Rd7 Rbb8 Kb2 b3 Ka3 b2 Qcb3 b1Q Nf7 Qc2 Rd6 Qc3 Nh6 Qcd4 Qa7 b4+ Ka4 Qb2 Qd7 Rb6 Qc2 b3 Rh7 Qc3 Rd4 b2 Qb3 b1Q Rb4 Bgh4 Rb5 Ng3 Bf1 Qcb2 Bg2 B1e2 Rf7 d1N Bh1 Nh2 Be4 Nf2 Bd2 Ngh1 Ba5 Rbb8 Bc7 Bg3 Bg7 Qc3 Bf8 Nf3 Bfd6 Rb7 Bb8 Qbb2 Bdc7 Qcd4+ Rb4 Qd6 Rb5 Qf8 Rg7 Qh8 Rg8 Re7 Rc8 Re8 Rd8 Ra7+ Ra5 Nh4 Qdd5 Nd1 Qb6 Rb7 Rd6 Bc4 Rd8 Ndf2 Qdd6 Qb1 Qe7 Ba6 Rd2 Bad3 Qd7 Nf3 Qb4 Qa1+ Qa3 Rb1 Qa2 Qb2 Qa3 Qb6 Qb3 Qg2 Rb5 Qh3
R1N4N/1K2q1nn/2B2QQ1/P3b1Rn/rb1q1p2/qb2Q3/q5nR/k1B1b1r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 h6 g5 h7 b3 c5 d3 c6 Kd4 c7 b2 e5 b4 e6 f3 e7 g3+ Ke1 f2+ Kd2 b3 e8R f4 Bg2 f1N+ Ke1 d2+ Ke2 g4 Ra3 Ne3 Rh5 Bb4 Rh1 Nf6 Re5 Rg8 h8Q Nf5 Qf1 d1N Bf3 g2 Qe1 g3 Qh5 Qe7 Qf2+ Nde3 Qh2 Nbd7 Qh5 Nh7 Qe8 Ndf6 Ra2 Be6 c8Q Nh5 Bd2 Nfg7 Na3 b1Q Nc4 b2 Qec6 Qa1 Qd8 b1Q Nh3 g1B Rg5 g2 Qg3 Bf2 Bc1 Kc3 Rh2 g1B Nb6+ Kb3 Bg2 d4 Kf3 d3 Ke4 Bfe1 Nc8 d2+ Qd3+ Qc3 Bh1 Ng2 Qe3 d1Q Ra1 Bg4+ Kd5 Qa2 Qf6 Qf3+ Qde4 Qff2 Q4d3 Bd1 Qdg6 Qd3+ Kc6 Kc2 Rf5 Qda3 Ng5 Qd2 Nf7 Qd4 Nh8 Ra5 Bd2 Kb2 Rc5 Bb3 Rg5 Qe8+ Kb7 Bgf2 Rc1 Qe7+ Rc7 Ka1 Bc1 Bec3 Rd7 Bfe1 Rc7 Rc5 a5 Rc4 Rd7 Bc5 Rc7 Ra4 Rd7 B5b4 Rc7 Nh4 Bc6 Ng2 Rd7 Bd6 Rc7 Bcb4 Rd7 Bc7 Rd8 Be5+ Bd7 Bb8 Nb6 Bbd2 Qh6 Ne8 Rg4 Be5 Ra8 Bb4 Nc8 Nh4 Rgg2 Rg3 Qhg6 Neg7 Rg1 Rf3 Rg5 Rf1 Qf2 Rg1 Qe3 Qed6 Bb5 Ng2 Bc6 Qe7+
n2b2Qq/r1B3Q1/1R1K1p2/N2P1Q2/N4n1q/4k1n1/Rb2r1b1/qqb1nB1B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 g4 h5 e4 c3 a4 f3 d3 f6+ Kf4 Kd4 e5 c5 e6 c2 e7 h3 e8B h4 g5 b3 g6 c4 a5 h2 g7 c3 a6 h3 a7 b4 Bb2 c1B+ Nd2 f2 Bg2 f1Q+ Qf3 Ne7 g8Q Nd5+ Kg3 Nf4 Ra6 Be7 Qe6 Bb7 Bf7 Re8 Qd1 Nd7 Qdg4 Nb6 Qc8 Ke3 d4 c2 Qg7 Be4 Ba3 b2 Ne2 b1N Nb3 Nd2 Bc4 Bb2 d5 c1B Nc3 Nf3 Kg4 Ne1 Na5 b3 Qf5 Qc8 Bb5 Bd8 Na4 Qf2 Rf1 h1Q Bd6 h2 Bc7 Qhg1 Bd3 h1N Be2 Ng3 Bh1 Qfh2 Rf2 Bg2 Bf1 Qh8 Rd2 Qe6 Rc2 Qe4 Rf2 Bd4 Ra2 b2 Be2 b1Q Bf1 Nc4 Rc6 Bdb2 Rd6 Nb6 Re6 Rb8 a8Q Rb7 Qc8 Na8 Rb6 Qc4 Qce6+ Qce4 Qeg8 Ra7 Q8f7 Qa1 Bb8 Qgh2 Qe5 Bc3 Bc7 B3b2 Qfg8 Kf2 Qee6 Qeb1 Qe4 Ngh5 Kf5 Qh4 Qd3 Re2 Qe4 Ng6 Ke6 Ng3 Kd6 Nf4 Qf5 Ke3
r1RNbK2/b1r1NRQ1/1p4B1/1n1rbrQ1/1N3q1q/P3n3/R1q4b/1kB4q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kf6 h4 Ke5 c4 g5 c5 d5 c6 f5 h5 b3 h6 g3+ Kf3 d3 a3 Kd4 h7 b2 e5 d2 e6 g2 c7 g4+ Kf2 f3 Kg3 f4+ Kf2 Bg7 e7 Be5 e8Q Nc6 Ba6 Nh6 Qg8 Na7 Qg5 Nf5 Bf1 Bd7 c8N Be8 Nb6 Ne3 Qb3 d1Q Bb5 Qc2+ Bd2 g3+ Ke1 f2+ Ke2 f1R Nh3 g1B Nc8 g2 Ne7 Bh2 Nc3 b1Q Bd3 g1B Na2 Nb5 Bg6 Rf8 h8R Rf5 Nb4 Rc1 Ra2 Ke4 Rh5 d4 Rh7 Bf2 Rd1 Bfg1 Qc3 f3+ Ke1 d3 Nf4 Qa1 Rf7 Qab1 Qc7 Kd4 Qd7+ Kc4 Ne6 Kb3 Qc7 Qd4 Nd8 Qf4 Ra1 Kb2 Qd7 Qa4 Qd4+ Rc3 Rc1 Qa2 Qa7 Rc7 Rc4 Q2b3 Ra2+ Kb1 Bc1 f2+ Kd2 f1Q Rc6 Bf2 Qd4 Qh1 Rc3 Bd6 Qg7 Be5 Rc6 Qh4 Rc5 Qbc4 Rc6 Qcf4 Rc5 Nd4 Kc3 d2 Rc4 d1R Rc5 Ng2 Kc4 Qc2+ Kd5 Nb5+ Ke6 Rd5 Rc6 Ba7 Rc4 Rcd7 Rc8 b6 Ng8 R7d6+ Ke7 Rd7+ Kf8 Ne3 Ne7 Rc7
3k4/1bnrb1K1/PBB1r1r1/1q5N/1R1b2QB/1r1qn3/n1bpN2n/QR4N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 d3 c5 b3 a5 b2 c6 g3+ Kf3 b4 e5 g4+ Kg2 b3 a6 d4 h5 d2 e6 d3 c7 Ne7 h6 Nd5 h7 Nc6 e7 Ncb4 Qe1 d1N Nh3 f3+ Kg1 g2 Kh2 g1R Nf2 g3+ Kh3 d2 Kh4 g2 Kg5 f4 Kg6 Na2 Rh2 Bb7 c8Q Nc7 Bc4 Rf1 Kf6 g1B Bd5 Ne3 Qb8 Ra7 Nc3 b1B Rh4 b2 Ne2 Bc2 Nh3 b1R Bb2 f2 Qc8 f3 Bd4 Rb3 Rb1 Rg8 h8B Rg6+ Ke5 Rh6 Qg4 Qb8 Bb6 Re6+ Kd4 Kd7 e8N Be7 Ng7 Qe8 Qc1 Kd8 Nh5 Qb5 Qd1 Re1 Be4 f1N Bf6 f2 Bc6 Nh2 Qc1 f1Q Qb2 Rd1 Qa1 Bf2 Bg5 Rf6 Nhg1 Qd3+ Ke5 Rc1 Qf3 Re1 Rb4 Qb5+ Bc5 Qh3 Bh4 Qd7 Qg4 Qdd3 Qb2 Nf5 Qa1 Bd4+ Kf4 Ne3+ Kg5 Rf4+ Kh6 Rf6+ Kg7 Ref1 Bg5 Re6+ Bf6 Rf5 Bb6 Rf3 Be5 Rff6 Bg3 Ba8 Bc5 Ne8+ Kh8 Rd7 Bh4 Bb7 Bb6+ Nc7 Kg7 Rg6+
k4K2/3BQ1b1/P4N1B/1bQq1B2/1nqrNr2/nb6/prRbR3/r1nn2Q1 w - - 0 1 illegal: No proof kernel
b1R2bq1/BN2nqP1/2p3b1/QR1rn3/6n1/1b5B/Q2r1r2/Qr1nKNBk w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 Ke6 g4 Ke5 a5 b5 g5 f5 g6 h5 g7 b3 d3 f3 a6 h3 a7 b4 Bb2+ Kf4 e5 Kg3 d4 f2+ Ke2 h4 e6 c3 e7 h2 e8Q h3 d5 f4 d6 c2 d7 c1R Bc3 b2 Nf3 b3 Qe6 Nc6 Qc2 Rd1 Qe7 Rh5 Ba5 Ne5 Qd6 Ne7 Ng1 f3+ Ke3 Rd2 Bg2 f1Q Bb6 f2 Na3 b1R Qb4 b2 Nf3 c6 Qd1 Bb7 Nb5 Qb8 Rg1 h1B d8B h2 Qa5 Qc4 Qa2 Qf7 Nd6 f1B Bc5 Bc4 Bdb6 Bb3 Bh3+ Bg2 Bd4 h1N Nh2 Nf2 Rh1 Be4 Nf1+ Kh4 Rg1 Bg6 Rg5 Qd8 Rf5 Rc8 Rg5 Ba8 Nb7 Qde8 Qc1 Rd8 Qc5 Rd5 Qca5 Qg8 Bdc5 Qef7 Rf5 Rg5 Bd4 Rg2 Bdc5 Rdd1 Ke2 Nfg4+ Bf2+ Rg3 Bg1 Rf3 Rf4 R1d3 Rb4 Rf4 Rb5 Rf6 Qd2 Rf4 Qc1 Rd2+ Ke1 Rff2 Qd1 Rc1 Qa5 b1N Ra4 Nc3 Ra3 Rcc2 Qa1 Rb2 Ra4 Nd1 Rd4 Rc5 Rd8 Rcd5 Rc8 Rb1 Qb4 Rbb2 Nd6 Bb7 a8Q Rb1 Q8a2 Ba8 Bc5 Rh2 Ba7 Rhf2 Ne3 Kg3 Qba5 Rf4 Nb7 Rf3 Bf2+ Kh2 Bg1+ Kh1 Nf1 Rff2
1k2B3/2N1BP1b/4n2q/Rrq3Rn/b2Q1Q2/2Qqb3/Rnq1rbp1/K2n3N w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 a4 d5 c4 Kd7 Kc2 Kc7 Kb2 b5 h4 e5 f4 e3 a5 b3 f5 b4 c5 d3 a6 e4 h5 d4 h6 e2 h7 e1B a7 g3 f6 d2 f7 g2 c6 g4 Ra6 g3 Be2 e3 Nc3 d3 Qc2 d1N+ Ka1 d2 Ra2 b2+ Kb1 Nd7 Bg4 e2 Qf5 Bh6 Ra3 Be3 Bh3 Rb8 a8R Rb5 Qf3 B1f2 Na2 e1Q R3a6 Nc5 Bg4 Bd7 Nh3 g1Q Ra5 g2 Nc3 Ne6 Qf5 Be8 Qf4+ Qd6 R8a6 Kb8 Nd5 Qe2 Nc7 Nf6 Rh2 Rg8 h8Q Nh5 Qhd4 Qd3+ Ka2 b1B+ Ka1 b3 Ba3 Qf8 Be7 Nb2 Ra2 d1N R6a5 Qh6 Rh1 Bg3 Nf2 Rgg5 Rh4 Rge5 Nh1 Bgf2 Bf5 Qc4 Bh3 Bh7 Rg4 Qc5 Rg5 Qf1 Bg4 Qd3 Bf3 Bc1 Bd5 Re2 Bc4 Rb6 Bb5 Bce3 Ba4 Rb5 Na6+ Ka7 c7 Qc2 c8Q Qd3 Qcd7+ Ka8 Nc7+ Kb8 Qc4 Rb4 Qcd4 Nc4 Qc3 Rb7 Rd2 b2+ Ka2 Rb6 Qdd4 Bb5 Kb3 b1Q+ Rb2 Qc1 Ka2 Qcc2 Ka1 Be8 Ra2 Ncb2 Bc6 Rb4 Bb7 Ba4 Bc6 Rb3 Be8 Rb5
qk3q2/2n2p1Q/1b1N1rnb/B1q4n/B5K1/nR1NRQ2/1q2P1bb/4NBr1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 h4 g5 c4 d5 a4 Kd7 a5 Kc7 c5 g3+ Kf3 d3 c6 g2 a6 g4+ Kf2 d4 a7 d2 h5 b3 h6 b2 h7 b4 Ra6 f3 Kg3 b3 Kf4 f2 Rh2 d3 Na3 b1Q Rh4 b2 Kg3 Bb7 Nh3 g1B Kf4 g3 Rh5 g2 Rha5 Bh6+ Kg4 Ne7 Ra4 Rg8+ Kf3 Bh2 h8Q g1B Qc3 Qf8 R4a5 Ng6 Qe1 d1Q Bd2 Qdc2 Rb6 Na6 Re5 Rd8 a8B Kb8 Qd1 Nc7 Nf4 Rd6 Re3 Rf6 Kg4 Qbc1 Qe1 b1N Rb3 Q2b2 Nc2 Na3 Qd1 Qca1 Qb1 Rg7 Be1 d2 Nd3 d1Q Bd2 Qdc1 Nce1 Rf3 Qf6 Qcc5 Ba5 Rg8 Qf5 Rg7 Qd5 Rf6 Qf3 Qaa2 Bh3 f1N Qc2 Ng3 Bf1 Ne8 Qb1 Nh5 c7+ Ka7 c8N+ Kb8 Nd6 Nc7 Rc3 Be4 Bc6 Qad5 Ba4 Qa8 Qh3 Bh1 Qf3 Bg2 Rb3+ Qb5 Re7 Bb6 Re3 Qc5 Nf2 Qa2 Qbf5 Qb2 Nfd3 Nh8+ Qg6 Rg8 Qg7 Ng6 Qh7 Ne7+ Qg6 Bh1 Kh4 Rg7 Qge4 Rg1 Qh7 Bg2 Kg4 Ng6
2RK2BB/2P4r/qn1q1Q1n/2pr1rR1/3QNR2/rkB1bN2/n7/n2bb2b w - - 0 1 illegal: No proof kernel
2K1n2N/p6b/r1q3rN/1kqq4/N1br1BQ1/1n1RRPbB/4q3/2Q1r1Bb w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 d5 c4 Kd7 b4 Kc6 g4 h5 c5 e5 g5 a3 g6 a2 g7 d3+ Ke3 d4+ Kd2 h3 Ne2 e3+ Ke1 h2 Bd2 e4 Qc1 h4 Qa3 h3 Rg1 h1B Nec3 e2 Qb2 h2 Rg3 Qd6 Na3 Nf6 g8Q Rh4 Qc1 Bf5 Qg4 Na6 Bh3 Nc7 Nc4 Bh7 Be3 Nd7 Kd2 e1R Na4 Kb5 c6 Qc5 Ne5 Bd6 Ng6 Rg8 Nh8 Rg6 Rb1 a1R Rb3 Ra3 Rf3 Bg3 Bf4 Bg2 Re3 h1B f3 Bf1 Rc3 Bf2 Bh2 Bg3 Bg1 Ra2+ Nb2 Ra6 Na4 Na8 c7 Be2 c8N Nc7 Qb1 Qc6 Ne7 Nc5 Qd1 Bf1 Nf5 Be2 Kc1 d2+ Kb2 d3 Ka3 Nb3 Qc1 d1Q Nh6 d2 Rcd3 Bf1 Qb1 Qdc2 Qc1 Kc4 b5 d1Q b6 Kb5 b7 Q2c5+ Kb2 Be2 b8B Bf1 Rd2 Bc4 Kc3 Ne8 Bf4 Nc7 Red3 e3 Ra2 e2 Ra3 Qf2 Re3 Nd2 Kd4 Nb3+ Ke5 Qd8 Kf5 Qdd5+ Be5 Rd1 Rd3 e1Q Re3 Qee2 Rd3 Qdd4 Bf4 Re1 Re3 Na1 Rac3 Nb3 Rcd3 Qdd5+ Re5 Na5 Qh5 Rd1 Bg5 Re4 Bf4 Re1 Qg4 Nb7 Qd2 Nc5 Qc1 Qg8 Re6 Nb3 Re8 Qfc5+ Re5 Bd5 Re6 Rd4 Ree3 Rd6+ Ke5 Be6+ Kf6 Bc4+ Ke7 Rg6+ Bd6 Qb7 Kd7 Qgd5 Kd8 Qbb6 Kc8 Qbc6 Bf4 Ne8+
r1b1R3/1KQ1qrQn/5qBr/2R1Q3/1N1B1Nr1/2n1P1Bq/1rpkp2b/3n4 w - - 0 1 illegal: No proof kernel
1nq3r1/N3k1Bq/BN1R4/R1qQK1bb/1np2b2/1n1p2qP/rQ5Q/5q1R w - - 0 1 illegal: No possible last move, all moves rejected
1qb2R2/2K2b1n/q1bR1Nr1/k2b3p/1npr1B2/3NQ1P1/2QbB1R1/2rq2N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb6 Ke5 h5 d4 c5 e4 f5 a4 c3 d5 c2 g3 f3 d6 f2 d7 h3 Bb5 f1Q Nc3 h2 Ke6 b3 e5 b2 Rb1 f4 Na2 f3 Nc3 f2 Bd3 Na6 Bh7 Ka5 Nd5 b5 Qe1+ b4 Bg5 c1R Qe3 b3 Bf4 Nb4 Bd3 Nf6 Be2 Bh6 Kd6 Nh7 e6 Qd1 e7 f1Q e8N Rg8 Nf6 Rg6 Ra1 b1B Ra2 Qf8+ Kc7 b2 d8R Be4 Rd6 b1B Rb2 Ba2 Rc2 Nc6 Nb4 Bf7 Nd3 Nb4 Rd2 Bc6 Rb2 Ka6 a5 Kb5 a6 Ka5 a7 c4 Nh3 Rb8 Rg1 h1B Rg2 Qfe1 Rf2 Bhd5 Ng1 Qa4 Rf3 Qed1 Rc2 Qb5 a8Q+ Qa6 Qaa7 Rb6 Qd2 Rb8 Qae3 Qg8 Rb2 Ra8 Qc2 Ra7+ Kb8 Rd7 Rf1 Rd8 Kc7 Bg7 Nd7 Re8 Bf3 Bfe6 Qb3 B8b7 Bh6 Bc3 Rg2 Bd2 Qc2 Rf8 Bg4 Rf4 Be2 Rd4 Rf5 Qe8 Rf8 Bf7 Nf6 Qea8 Bg5 Bc8 Bf4 Qb8+
bbn1Q2K/4n3/r4r2/1r1NRQpB/1bB1B1r1/N5p1/2qnqRP1/3Q1rk1 w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 f5 d5 fxe4 d6 h6 Bg5 hxg5 Qf3 cxd6 Qe2 d5 Qd1 d4 Ke2 Kf7 f4 Ke6 c4 Kf5 a4 Kg4 h4 Kg3 a5 d5 f5 b5 a6 e5 a7 e3 Kd3 Kf2 h5 e2 c5 e1Q f6 e4+ Kc2 d3+ Kb2 d4 f7 d2 h6 e3 c6 d3 c7 b3 Kc3 e2 h7 b2 Nf3 b4+ Kc4 g4 Ra2 g5 Qc1 d1R Ng1 b3 Rh4 g3 Re4 d2 Re8 Nd7 Kd5 Ne7+ Ke6 Nb6+ Kf6 Qd3 Qc3 Qc2 Qe5 Bb7 Qd5 Nbc8 Na3 b1N Qd6 Rg8 h8Q b2 Qh7 Bf3 Qf5 Rh8 Qd8 Rh4 Qdd7 Rg4 Nh3+ Ke3 Nf4 Kf2 Nd5 Kg1 Qd8 Qf2 Qd6 e1B Bc4 Qe2 Qdd7 Rc1 Qa4 d1R Qb3 Nd6 c8B Bb4 Qbd3 Rf1 Qd1 Nd2 Bd7 Rc8 a8B Rc6 Bc8 b1R Be6 Bh6 f8Q Ra6 Bf7 Ndc8+ Bc6 Bd6 Bh5 Rb5 Qh8 Bf8 Rb2 Ng6 Re5 Bb8 Qg8 Be7+ Kg7 Bb4 Qe8 Nge7 Kh8 Be4 Rb3 Rb1 Rf3 Rbb6 Ba8 Rf6 Rf2 Rb2 Nc3 Bf3 Be4 Rb3 Bed3 Ba8 Nd5 Bc5 Be4 Rb5 Nb1 Bcd6 Na3 Bb4
nbR1N1BQ/2nB3Q/2qB2R1/1p1br2r/1rk1nnPq/3N1n2/2p1b3/2Q3K1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 e4 Ke6 d4 h5 g4 b5 a4 c5 e5 Kd5 e6 f5 a5 c3 e7 h3 e8B h2 a6 h4 a7 c4 Bd7 c2 Be2 c3 Qe1 b3 Qd1 b2 Nf3 h3 Ne1 f3 Qd3 f4 Qd2 Qh4+ Kf1 f2 Be8 Bd6 Bf7+ Be6 Nd3 Na6 Ra5 Kc4 d5 Ne7 Bf3 Rh5 Nc5 Re8 a8Q Bb8 d6 Nc8 d7 Nb6 d8Q Nc7 Ra3 Bd5 Qe3 Ree5 Bd2 c1N Bg8 c2 Nc3 b1R Qe7 Rb4 Nd3 Ne2 Ra7 Rh8 Ra6 Rhh5 Qb7 Nba8 Rg6 Rh6 Qd8 Rhh5 Rg1 h1Q Ne4 h2 Nf6 Rh6 Ne8 Rhh5 Be4 Qf3 Bf5 h1N Rg3 Qe4 Rf3 Nhg3+ Kg2 f1N Bd7 Nh2 Qg1 Qd4 Qa7 Qc5 Qc1 Ne4 Be3 Qd6 Bc5 Qc6 Rf1 Nf3 Bd6 Nfd4 Re1 f3+ Kf1 Nf4 Kg1 Nde6 Qf6 N6g5 Qh8 f2+ Kf1 Nfe6 Kg2 f1B+ Kg1 Be2 Rf1 Qh3 Rf8 Nf4 Bc8 Na6 Qah7 Qh4 Bd7 N6c7 Ng7 Kd4 Rc8 Kc4 Ne8 Nf3#
q2k2r1/3b4/Q4n1N/1p1rBN2/P2q1qp1/bB1qR2b/3R1nq1/Q3rNKQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 f3 e5 d3 c5 f4 e6 g3+ Ke1 g4 e7 d4 c6 g2 Kf2 d2 c7 d3 h5 b3 h6 b2 h7 Na6 Ne2 Nc5 Ra2 Nf6 Ra1 Nce4+ Kg1 f2+ Kh2 f3 Ng3 Rg8 h8Q Bd7 c8Q g1R Be2 f1B Ra2 f2 Qa6 Bh3 Nf5 f1Q Nh6 Nf2 Bf3 Ra7 Bd5 Qa8 Bb3 Rb7 Qf3 d1Q Nd2 b1Q Bb2 Qbc1 Be5 Rc7 Qg7 Rc5 Qd5 Qfe2 Nf1 d2 Qh8 Qcc4 Qd4 Qcc1 Qa1 Rd5 Rc2 Qd3 Rc3 Qd4 Re3 Qe2 Qh7 d1Q Qe4 Be6 Qg2 Kd7 e8N Q1d3 Nd6 Kd8 Ndf5 Ba3 Qe4 Bd7 Qf3 Rg3 Qg2 Qf3 Kg1 Qcc6 Rh2 Qff4 Nd2 Rf3 Qh1 Qcc2 Nf1 Qcc6 Re4 Re3 Rg2 Re1 Re3 Nd1 Re2 Nf2 Rb2 Qcc2 Ra2 Qce2 Rb2 Qef3 Rd2 Qg2+
2BQ4/q3nB1b/2N3bQ/p1R2Nr1/3bp1r1/1q1QP2K/nbbn4/1rk2NR1 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Bh6 h4 Bd2 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 f4 Kf7 b4 Kg6 h4 Kf5 c4 Ke4 c5 Ke3 f5 g5 c6 d5 b5 a5 h5 e5 c7 d3 b6 e4 h6 d4 b7 g2 f6 g3 f7 a3 h7 a2 Nh3 g1Q Qa4 g2 Na3 d2+ Kd1 g4 Qe8 g3 Qe7 Qd5 Rb1 a1N Qe8 Na6 b8N Nb3 Nc6 Nb4 Rc1 Rb8 Nd8 Bf5 c8B Ne7 Rc7 Bg7 f8Q Na2 Nf4 Rg8 h8Q Bh7 Nb1 Be5 Qff7 Rg5 Nh5 Qf2 Rc4 g1B Rc5 g2 Ng7 Qb7 Qff8 Qa7 Qhg8 Qg3 Qd7 Bf2 Qdd5 g1R Nc6 Qh3 Qge6 R1g4 Qh6 Rb6 Rg1 Qg3 Qfd8 Rb8 Kc2 d1B+ Kb2 Qh3 Nd2 d3+ Kb1 Bb2 Nf5+ Kf4 Qc4 Bfd4 Qc3 Qe3 Bh3 Rb5 Nf1 d2 Qc4 Qc3 e3+ Kf3 Qcd5 Ke2 Be6 Ke1 Bf7 Be2 Qc4 d1B Qd3 Rb6 Qc2 Bb5 Qd3 Qb4 Nb8 Be8 Nc6 Be2 Kc2 Nd2 Qc3 Bc4 Qd3 Bb5 Bc4 Beg6 Bf7 Kf2 Kd1 Ba4+ Qb3 Kf3 Ke1 Qb5 Qc3 Bc2 Qd3 Qb3 Ng7 Rg3 Bc8 R3g4 Nf5 Rb4 N1g3 Nc4 Kf1 Rb8 Rg2 Nd2+ Kg1 Rb6 Kh2 Rb5 Rg1 Kf2 Nf1 Ke1 Bce6 Kd1 Kh3 Kc1 Bc8 Qd5 Bfe6 Ba3 Qb6 Rb1 Bf7 Bab2 Qd8 Qb3
3r1qnk/1r6/r2Nb2B/p1brP1R1/3bq1p1/3BB3/RnqR2K1/QrN2Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 g5 h4 d5 e4 f5 c4 Kf7 b4 Kg7 h5 a5 e5 d3 c5 d2 b5 d4 c6 a3 c7 d3 b6 a2 b7 f3 Ba3 f4 Bg2 g3+ Kf1 g4 Ne2 f2 Qc1 Ra6 Bd5 d1Q+ Kg2 f1R Be6 d2 Bd5 Bc5 Be4 Qd3 Nbc3 Nc6 b8R Be6 c8Q Nb4 Nb5 Q1c2 Nd6 d1R Rh2 Rd2 Qb2 Rb1 Qe8 Qd4 Qb5 Nd3 Rd8 Rh7 h6+ Kh8 Rh5 Rb7 h7 Qe3 Qc3 Nb2 Rg5 Rd5 Bd3 Bd4 Bc5 Rd1 Rc1 a1R Qa3 Rb1 Qa1 Rd2 Rf1 Rdd1 Rf2 Rd2 Nc1 f3+ Kg1 Qe4 Kf1 Bc3 Be3 Bd4 Re2 g2+ Kf2 g1B+ Kf1 f2 Rd7 Qf5 Kg2 Qg6 Rd8 Kg7 h8B+ Kh7 Bg7 f1Q+ Kg3 Qf6 Bh6 Kh8 Kg2 Rd1 Rd2 Qf8 Rc8 Qgf5 Rc3 Qh7 Ra3 Bc5 Ra2 Bf2 Bf4 Bfd4 Be3 Qe4+ Kh2 Qg6 Be4 Rd7 Rf2 Bc3 Nb7 R5d6 Kg2 R1d5 Qf1 B3d4 Rd2 Rd8 Bf5 Rdb6 Nd6 Rb7 Bd3 Qe4+
1QK2n2/NnR2Nbk/1r5n/pPR4r/6bQ/3rNQ2/Bqp2nnB/4q1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 f5 Kf3 Kf7 e4 Kg6 b4 c5 d4 a5 g4 h5 b5 h3 g5 a3 e5 c3 e6 h2 e7 h4 e8Q+ Kh7 d5 h3 d6 c2 d7 a2 Qf7+ Bg7 Be2 c4 Qfd5 c3 Nd2 Ra6 Qb7 Qb6 d8Q Nd7 Bd3 Nf8 Qe1 Nh6 Ne2 Qg1 Bc4 Rb6 Nd4 Rg8 Bb2 c1N Nf1 Nb3 Rc1 a1Q Qh4 Nc5 Ne3 Qe1 Ba3 Qb2 Ba2 Rh8 Qbd5 Nb7 Bd6 Bd7 Rf1 h1R Nc6 h2 Qb8 Rg1 Bc7 h1N Na7 Rg2 Qe4 Rd2 Rf2 Rd3 Rfc2 Be6 Bd6 Nf2 g6+ Kg8 Kg2 f3+ Kg3 Rh7 Kf4 Kh8 Kg5 f4 Bc7 Bg4 Qc6 Nd1 Bd6 f2 Qf3 f1N Be5 Nf2 Bd6 Qb3 Bc7 Bd4 g7+ Kg8 Bd6 Rh8 Bc7 Kh7 g8N Bg7 Bd6 Qb2 Be5 Ng3 Bc7 Nh5 Be5 Nf5 Nh6 Qg1 Nf7 Nh6 Qd5 f3 Bh2 Nf4 Qc6 Nd1 Qf6 f2 Qc6 Ng2 Qf3 Ne1 Kf4 f1Q Ke4 Bd4 Kd5 Nf2 Qf5+ Rg6 Qf3 Bf6+ Kc6 Ng2 Kb6 Bg7+ Kc7 Re6 Kc8 Qe1 Re2 Rd1 Rd2 Rb6+ Rd7 Rd3 Rb1 Re6 Rc7 c2 Rd1 Ra3 Rd4 Rd3 Rdc4 Rb6+ Nf5 Kg8 Ne5 Nf7 R4c6 Rh5 Rc5 Nd7 Ne3 Kh7 N3c4 Nh6 Ne3 Nf5 Nf7 Nh6 Rg5 Nf8+ Rf5 Ne6 Rfc5 Nf8+
2n4K/R5n1/Rb1n2PB/1q1r2B1/pQrkB3/p1R1NbnQ/1n1N1b1q/7r w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 h5 b5 e5 g5 a5 f5 a3 f6 a4 f7 e3 Kf3 d3 c4+ Kd4 c5 d5 g6 h3 c6 d2 c7 e2 b6 e1B b7 h4 Bg2 h2 Bf1 h3 Ra2 e4+ Kf4 e3 Nc3 e2 Ra1 Nh6 Ra2 Nf5 Qc2 d1N Bd2 Bf2 Kg4 e1N Qc1 Ng7+ Kf4 Nb2 Qa1 Nc4 Rb2 Nd7 b8Q Bb7 c8R Qa5 Kg5 Nd6 Qa2 Nb6 Kf6 Qb5 Nd1 Nd3 Rc3 Nbc8 Qb3 Bc6 Rb1 Nb2 Bd3 Ra5 Be4 Rh4 Ne3 Rf4+ Kg5 Be7+ Kh6 Bd8 Kh7 Bb6 f8B Qa6 Rbc1 Nh5 Qa7 Rf5 Nc4 Rc5 R3c2 Ba5 Bg2 Qb5 Bc3+ Kd3 Qd7 d4 Nf3 Rg5 Rhe1 h1Q Re7 h2 Bh6 Ng7 Kh8 Qg1 Rf7 h1N Qh3 Ng3 Ra7 Qh2 Qb4 Rg4 Ra6 Bb6 Bcd2 Be4 Bdg5 Rd5 Na5 Rf4 Rc7 Ke3 Re7 d3 Rea7 d2 Nc4+ Kd3 Bh1 d1R Nfd2 Rf1 Bf3 Rh1 Ne3 Rh4 Bd1 Bg2 Bf3 Rc4 Rc3+ Kd4 Be4 Bf3
kq6/3r1r2/Bb1qnp1N/rb1NN1nR/4r1BK/2Qr4/PRpn1Bq1/6Q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 d4 Kc6 e4 b5 g4 Kb7 g5 h5 g6 c5 d5 f3 e5 c3 g7 c4 e6 c2 d6 b3 e7 h3 Kg3 c3 e8B h4+ Kf4 f2 d7 b2 Kg4 b4 Bb5 f1R Qd3 b3 Qf3+ Nc6 Bc4 h2 Qf5 h3 Qf4 Nf6+ Kg3 Nd4 g8N Ne6 Bb5 Rh7 Qd4 Ra5 Bd2 c1R Nf3 c2 Ne7 Rcd1 Ne5 Ka8 Be3 Ne4+ Kg4 Rd3 Bh6 Ba6 Nc8 N4g5 Nc3 b1N Nd6 b2 Nf5 Bc5 Kh4 Nd2 Qg1 b1Q Nd5 Bb6 Bc4 f6 Bh5 Rf4+ Bg4 Re4 Bb5 Qb4 Rb1 Qb8 d8Q Rf7 Rb2 Qd6 Qc7 Rd7 Qc3 Rf7 Bd7 Bb5 Bc8 Rd7 Bf8 Rf7 Ba6 Rd7 Qe1 Rf7 Nh6 Rd7 Rf1 h1R Rf5 h2 Qf2 Rd1 Qg1 Rf7 Be7 Qdd8 Bc5 Qdd6 Bf2 h1Q+ Qh2 Qg2 Qh1 Nh3 Rh5 Nhg5 Qg1 Qc5 Ne3 Rdd7 Nd5 Qcd6 Qc7 Nb1 Qc8 Rd3 Qc3 Nd2
4nnB1/4bn2/qNNnQp1b/Pb4n1/p1N2q2/q6K/R3QR1R/1rr1B1k1 w - - 0 1 illegal: No proof kernel
QRr3Nb/2qqQ1r1/B2qP1R1/1b6/1Kb1p2n/B3qNrn/3NkqBp/8 w - - 0 1 illegal: No proof kernel
k2rqnrK/Nq1QRQN1/3RpB2/b1b3nb/b2R2B1/P2bBp2/8/n6r w - - 0 1 illegal: No possible last move
2brn1qb/2Q2RR1/r1qbp2b/3b2N1/1P2np1K/R6N/1kNBB2Q/2rq4 w - - 0 1 illegal: No proof kernel
b4q2/4bNR1/1k1pP3/Rn1bn1rr/2BNpB2/1n3RQr/1Kqb4/4QBb1 w - - 0 1 illegal: No proof kernel
n1b1R1r1/2b3B1/q1pn1B2/4R1NQ/1rPK4/k1b1r3/Nr3pQ1/Q1B1rnq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 Kf2 Kd7 a4 Kd6 h4 Kc5 c4 b5 a5 f5 g6 e5 a6 e3+ Ke2 c6 a7 f3+ Ke1 f4 g7 g3 h5 b3 d4+ Kb4 d5 g2 d6 f2+ Ke2 f1N Kd3 b2 d7 f3 h6 e4+ Kd4 f2 h7 e2 Bg5 e1B Qd3 e3 Qg6 e2 Kd3 Nh6 g8Q Qb6 d8B Nf7 Bh4 Bd6 Bde7 Bd2 Qg4 e1R Nh3 g1Q Qf5 Nd7 Beg5 Bc7 Ra5 Qa6 Nc3 b1R Kd4 Rb2 Na2+ Kb3 Qfg6 b4 Re5 Ka3 Qh5 b3 Bh6 Nb6 Ng5 Rb8 a8Q Nd6 Rh3 Re2 Rhe3 Rb7 Qd5 Rg8 h8B Re1 R3e4 Re3 B8g7 Rb8 Qa7 Na8 Re8 Rb4 R4e5 Rb1 Qg2 b2 Ne4 Ra1 Bhf6 b1R Bf4 R1b2 Ng5 Qa4 Qa6 Rae1 Qa5 R4b3 Qc3 Qa6 Qc1 Rb8 Qa1 R8b4 Rd5 R3e2 Rde5 Bc3+ Kd3 Re4 Bc1 Bd2 Qhh1 R4e2 Kd4 Re3 Qh5 Bc3+
2R3rB/nqRB2Q1/1p3Q2/3nn2Q/3p4/P1NB2b1/r1nKq1kb/q1n3Nb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 h4 Kf6 c4 Ke5 c5 f5 h5 g5 h6 d5 c6 g3 h7 g2 c7 b3 Ke2 f3+ Ke1 d3 Rh3 d2+ Kf2 Kf4 e5 b2 e6 d4 e7 g4 e8B b6 Qe1 Nc6 Rh4 Nf6 Rh1 Nd7 Bb5 Na7 Ba4 Ne5 Bac6 Qd7 Na3 b1N Ba4 Rg8 h8Q Bd6 Qf6 Nc3 Qf7 Bb7 c8Q Nd5 Bb2 d1Q Nc2 Bc6 Nb4 Qb7 Rc1 Qd3 Qf1 g3+ Ke1 Qb5 Rh2 f2+ Kd2 Qa5 Nh3+ Kf3 Qf6 g1N Qb5 f1Q Bd7 f4 Qcf8 g2 Q8g7 Ne2 Bc2 g1B Bd3 Bf2 Rc5 Nc1 Ba3 Bg3 Re2 Qf2 Ng1+ Kg2 Rc3 f3 Qc5 Ne3 Nd5 Nc2 Qb5 Bc7 Bd6 Qa3 Qa5 Qb2 Rc4 Qa1 Nc3 Bb8 Kd1 Be4 Rc7 Bc6 Re1 Qf1 Kd2 f2 Re4 Bd5 Rh4 Bc6 Rh8 Bd5 Bg6 Qfa6 Bd3 f1N+ Kd1 Nfe3+ Kd2 Bf3 Qd5 Qb5 Qdf7 Nd5 Qh5 Nac6 Bf8 Ra4 Be7 Na7 Bf8 Rb4 a3 Rb2 Bd6 Ra2 Bf8 Nec6 Bc4 Kf2 Qgh7 Bh2 Bg7 Rf8 Rg8 Rc8 Bh8 Q5a6 Qhg7 Rd8 Rc8 Bbg3 Rc7 Ne5 Qfg6 Bh1 Q6f6+ Kg2 Be2 Rf8 Beb5 Rf7 Ra8 Rf8 Rac8 Rg8 Bc4 Qb5 Be2 Qc5 Ba6 Qc4 Bab5 Qf1 Bd3 Qe2+
1Q5q/3rn2q/kp3PQ1/B4qqb/1r4rn/b3QR1q/1p1N3K/2NBB1Rb w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 e5 Kf2 g5 Kg2 d5 c4 Kd7 h4 Kc6 a4 Kb6 a5+ Ka6 c5+ d3 c6 b6 h5 e3 f5 e4 f6 d4 c7 e2 h6 e1Q h7 b3 Ra2 g3 Rh6 b2 Rg6 g4 Kh1 e3 Bd2 g2+ Kh2 e2 Rg5 Ne7 Rb5 Nf5 Ra1 g3+ Kh3 Ra7 Re5 Ba3 Bc1 d2 Re8 d3 Re3 Bb7 c8Q Nh4 Qb3 d1Q Nd2 Nc6 Qg4 Qc2 Rf3 Ne7 Qg6 Qf2 Qc3 e1Q Ne2 Rg8 h8B g1Q Bg7 g2 Bf8 Bd5 Qc5 Rd7 Qe3 Qb8 Bh6 Rc8 Bf4 Rc4 Bg3 Qh8 Rb1 Rb4 Ra1 Kb5 a6 Qc7 a7 Ka6 a8Q+ Qa7 Nb3 d2 Qb8 d1B Bd2 Qc7 Nec1+ Qee2 Qg4 Qd3 Be2 Qff1 Qgg5 Qe5 Bge1 Qf5+ Kg3 Ba8 Qg6 Bb7 Qc5 Qe3 Kh2 g1R Qce5 Qeg5 Qe3 Rgg4 Bc3 Bc6 Nd2 Bd5 Rf4 Bh1 Rf3 Bb3 Bd1 Bf7 Qh5 Qfh7 Qg6 Qdf5 Rb1 Rb3 Ba5 Rbb4 Qh6 Bh5 Qg6 Rd5 Ra1 Rd7 Ncb3 Rc7 Be2+ Rb5 Bf2 Rd7 Rd1 Qe1 Nc1 Ng2 Bh4 Qf2 Rg1 Qf1 Bd1 Rbb4 Bf2 Nh4 Be1 Qh3+
7n/3RB1pk/r3Q1p1/4RBrq/7r/PN1RbNB1/2n1rnq1/1q1brQK1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 g4 fxe4 g5 a5 g6 axb4 Qf3 hxg6 Qg4 Rh4 Qd1 Rh8 h4 Kf7 f4 e5 Kf2 b5 c4 d5 h5 b3 a3 b4 c5 e3+ Kg2 d3 c6 b2 c7 d4 f5 d2 h6 d3 f6 b3 h7 e2 Qc2 d1Q Bh6 e1R Qd2 e4 Kh2 e3 Qc2 d2 Kg2 e2 Nh3 Bg4 c8R Bc5 Rh2 Qd3 Rh1 Na6 Bf4 Nb4 Re8 Nh6 Ng1 Be3 Qc1 Nc2 Bg3 Ra6 Re5 Kf8 Rh2 Nf7 Nf3 Qf5 Rh3 Qd7 Nc3 b1R Nb5 b2 Nbd4 Qf5 Ra2 Ra1 Nb3 b1Q Kh2 Qe6 Bg2 Rg1 Bf1 e1R Bd3 Qc8 Rb2 Ra2 Bf5 Qe2+ Bf2 Qb5 Bg3 Qc3 Qd1 Qd5 Qe2 d1N Qg2 Nf2 Qf1 Nd4 Re2 Nc2 Rd2 Qda5 Rd7 Qac5 Nfd2 Bd1 Nf3 Rb2 Bh4 Rg5 Bg3 Qb5 Kg1 Qe2 Nh2 Qh5 Nf3 Rg8 h8Q Qc8 Qh6 Rh8 Rh2 Kg8 Rh3 Rg4 Qf4 Rg5 Qg4 Rh6 Qc4 Kh7 Qe6 Nh8 f7 Qc3 f8B Qd3 Rh4 Ra2 Rhd4 Rb2 Bg4 Qf5 Rd3 Qh3 Be7 Rh4 Nfd4 Qf3 Bf5 Qh5 Bd6 Nb4 Be7 Rbe2 Nf3 Nc2 Ra7 Raa4 Rb7 Ra6 Rbd7 Qg2+
3Rqn1B/1rbn2pB/rNRp1r2/5PQ1/K7/n4b1Q/nQRqknN1/7q w - - 0 1 illegal: No possible last move, all moves rejected
Q2RRNb1/N1b2p1n/6bB/3N1Qn1/1r2B1p1/2r1PR1b/kqq2r2/n5Kb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 c4 Kc5 a4 g5 h5 b5 a5 d5 a6 f3 h6 g3+ Ke1 g2 Kf2 d3 e3 d4 h7 b3 a7 Kb4 c5 b2 c6 d2 c7 d3 Na3 b1B Rh2 Qd4 Rh4 Nc6 Rf4 Nf6 Be2 Rb8 a8N Na5 Qe1 Kb3 Rh4 d1Q Rh1 d2 Rh5 b4 Qf1 Bd6 Nb6 Qc2 Nac4 d1B Nd5 Bh3 c8Q g4 Rf5 Qdb2 Ndb6 Bc7 Nd6 Rb7 Qa8 Rc8 h8R Nh7 Nd7 Rb5 Kg3 f2 Bd3 Bf3 Ne2 g1N Kh2 Bh1 Nc3 Rbb8 Rd8 Nf3+ Kg3 Nfg5 Kh2 Rb5 Be4 Rb6 Qd3 f1R+ Bd2 Rb5 Rf3 Rf2+ Kg1 Rb7 Qb5 Rbb8 Qf5 Rb5 Na2 Ka3 Bc1 b3 Nf8 Rb4 Re8 Rd8 Nc8 Rd3 Rd8 Rc3 Bd2 Qbc1+ Be1 b2 Na7 Nb3 Re8 Q2d2 Rd8 Bc2 Re8 b1B Rd8 Qb2 Re8 Re2 Bg3 Rf2 Bf4 Bd3 Rd8 Bbc2 Rb1 Na1 Rd1 Bb1 Re8 Qdc2 Rd2 Ne6 Bh6 Neg5 Rd1 Kb3 Nc1+ Ka3 Ne2 Kb3 Nf4 Ka2 Bb7 Be4 Rdd8 Bd3 Qf6 Bg6 Qf5 Nf6 Nd5 Bh7 Nb6 Bg8 Be4 Nfh7 Nd5 Rh2 Qf6 Qcb3 Bd3 Rf2 Bg6 Bf5 Qe6 Q3c2 Qec8 Bd7 Be4 Bf5 Qd7 Bg6 Qe6 Rcb3 Qf5 Rc3
2qQ4/kBnbKp1r/B1q3nB/1q4Nr/PNrb1Q2/5N2/4pq2/2q1RRb1 w - - 0 1 illegal: No proof kernel
4qb1N/3n1pr1/r2r3k/1QbqnRpb/5rQ1/KB1Q3P/N2R1rq1/N3B3 w - - 0 1 illegal: No possible last move
1B1k2r1/rR1n1pNq/1Nn1Pb2/2n2qnQ/4b1n1/p5B1/1r3Q1Q/1K2RBq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 c4 d5 Kc2 h5 e4 d3+ Kc3 h3 g4 d4+ Kd2 a3 b4 h4 b5 a2 g5 f3 g6 h2 e5 a4 c5 h3 e6 a3 b6 f2 g7 Qh4 c6 Nd7 c7 Be7 b7 Ra7 b8B Bb7 Qh5 Be4 Qb5 Bf6 Qa4 Qh7 Qb3 Ne7 Qd1 Rg8 Qh5 Nc6 Be2 f1Q Bb2 Qff5 Kc1 Ke7 Bf1 d2+ Kd1 Ke8 Ne2 Ke7 Rg1 h1R c8Q h2 Qc7 Ke8 Qf4 Kd8 Rg5 Rg1 Nbc3 h1N Na4 Rg2 Qfh2 Ng3 Nf4 Re2 Rc1 a1N Nb6 Nb3 Qf2 Nbc5 Rg4 Nd3 Kc2 d1N+ Kb1 Ne3 Re1 Rc2 Qhh2 N3c5 Nh5 d3 B2e5 d2 Bf4 Ne2 Bg3 Ng1 Rh4 Nf3 Rh3 Rf8 g8Q Ng5 Qg6 Ng4 Ng7 Rh8 Qh5 Rg8 Rc1 d1Q Rh4 Qd4 Re1 Nh6 Rg4 Qe3 Rf4 Ng4 Rf3 Qd4 Rb3 Qe3 Nd5 Qd4 Rb7 Qe3 Nb6 Qd4 Qfg2 Qg1 Qf2 Rb2+
qR4Q1/4kpb1/1nP1p1q1/BBrr1Qqr/2bB4/rr2QN1K/1R5n/1N5n w - - 0 1 illegal: No possible last move, all moves rejected
4kNn1/2b1p2N/rn3B1r/1R1r2R1/2nQq2Q/1p1q1N2/K1Br1bPQ/3b3r w - - 0 1 illegal: No possible last move, all moves rejected
n5Q1/1NP4Q/q5b1/prbN2r1/1qB3RK/n1q1NR1b/1Bp1b2k/3bnR2 w - - 0 1 illegal: No proof kernel
bn5n/pBR2Q2/3qB1rN/qk1b2bn/5n2/pP2B2N/n1K4Q/R1qN3r w - - 0 1 illegal: No possible last move, all moves rejected
k1bR2rB/p3p2n/2r1N1rN/2Qb2R1/1rrnNK2/4P1B1/q2q1Q1Q/b5n1 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Bh6 h4 Kd2 h3 Bg2 hxg2 Ke1 fxg6 Bf4 g5 Bc1 g4 Kd2 g5 b4 d5 f4 Kd7 c4 Kc6 h4 Kb7 h5 g3 h6 d3 Ke3 a3 f5 a2 f6 d4+ Ke4 d2 f7 g4 c5 d3 h7 Bg7 f8N Nf6+ Kf4 Nc6 b5 Rb8 b6 Ka8 Nh3 g1N Qc2 d1B Ng5 d2 Nfe6 g2 Rh5 g3 Nc3 Nd4 c6 Rg8 h8B Nh7 c7 Qd7 e3 Bf3 Ba3 d1R Qf2 Bd5 Bd6 Rc1 Nce4 Rc4 Rd1 a1Q Nf7 Qa2 Nh6 Bf6 Be5 Rg6 Rg5 Bg7 Nd8 Rgc6 Ne6 Qd6 Rd3 Qb4 Bd6 Qbd2 Be5 Ngf3 Bd6 g1R Be5 g2 Bd6 Ba6 c8Q Bb7 Qc7 Bc8 Be5 Rb1 Qd6 g1R Qc5 Rbb4 Bc7 Rg2 Bd6 Kb7 Bc7 Ng1 Be5 Ka6 b7 Ra8 b8Q Rg3 Qbd6 Kb7 Qd8 Rb8 Qh2 Ka8 Qf8 Nc2 Bc7 Ba1 Qf6 R8b6 Qb2 Nd4 Bce5 Qe1 Qbf2 Qed2 Rg8 Nf5 Nf8 Rc7 Bef6 Bc6 Rd8 Bd5 Bh4 Nd4 Rg6 Rg5 Bg3 Re6 Rg7 Rcc6 Rg8 Ree5 Ne6 Rg7 Rgf8 Reg5 Rf5 R5g6 Rg5 Rg8
k4b1r/pr1NpP1N/3rr1R1/3BQB2/Q4rb1/bK1nq3/R1n5/q1Qq2B1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 Nh6 Kd2 d5 f4 e3+ Kd3 e2 c4 e1R Kc2 a3 b4 a2 f5 d3+ Kb3 d4 c5 h3 f6 h2 f7+ Kd7 b5 Kc7 c6 d2 g5 d3 g6 Nd7 g7 Kb8 g8Q Nf5 Be2 h5 Nc3 h4 Ka3 h3 b6 Ne5 b7 Ne3 Qg4 Qb6 Bf3 Nc2+ Ka4 Rf1 Nd5 Rh6 Qe1 d1R Be3 d2 Nf6 Qc5 Bf2 Qe3 Be4 Be6 Nf3 Bc8 Rg1 h1Q Ng5 h2 Bf3 Rb1 Qd7 Rb5 Qe8 Rd5 Qd1 Rd6 Qd7 Nd3 Rg3 Qg2 Bg1 Qgf2 Qg4 Bd7 Bh1 Qfe1 Qc4 Bh3 Rg4 Rf4 Nd7+ Kc7 Qb1 Rb8 Qb2 Qb1 Qc1 d1Q Be4 h1R Qb5 Ncb4+ Ka3 Rhf6 Qa4 Rfe6 Rg2 Bf5 Bf3 Rh8 Nh7 Bh3 Rg6 Bf5 Nc5 Kb6 c7 Bg4 Be4 Qh3 Bf5 Qe3 c8B Kc7 Bd7 Kb6 Bc6 Kc7 Qac2 Kb6 Qc4 Nc2+ Ka4 Qb2 Bd5 Qg7 Qe4 Qf6 Nd7+ Ka6 Rb1 a1B Rb2 Qg7 Ra2 Bb2 Qd4 Ba3 Qe4 Qa1 Qd4 Rf1 Qe5 Rf4+ Kb3 Rc8 b8Q Rc7 Ndf6 Rcd7 Qe8 Rc7 Qa4+ Kb6 Bc4 Kb7 Nd7 Ka8 Bd5+ Rb7+
3BqRB1/n1n1Q1B1/4NR2/3nbQ2/1Qb1K2N/5pn1/2k1pP1n/rr1n1rn1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 Ke2 Kd7 Ke3 Kd6 a4 Kc5 g4 Kb4 d4 b5 g5 e5 d5 f5 d6 h5 g6 c5 a5 f4+ Ke2 h3 d7 c4 g7 h4 a6 h2 a7 h3 Qd5 Kb3 Bb2 e3 Kf3 e2 Ba3 e1N+ Ke4 b4 Qb7 c2 Be2 c1N Qb5 c3 Qd3 Ba6 Bb2 Qe8 d8B Bd6 Bh4 Nf3 Bf1 Ne2 Be7 Nc6 Qd5+ Bc4 Qd3 Nf6+ Kf5 e4 g8Q e3 Qgd5 Be5 Qg8 Nd5 Ra4 Nc7 Qd7 c2 Qd2 c1N Na3 Na2 Qd4 Nac3 Qf8 Nd1 Nb5 Kc2 Ke4 b3 Bd8 Rb8 a8Q Na7 Bc3 b2 Qe7 b1N Qad5 Rh6 Q4c5 Ra6 Qb4 Rb7 Ra3 Rb8 Rb3 Ra1 Ra3 Rb6 Ra6 Rb7 Bd4 Rb8 Rf6 Nbc3+ Kf5 Rb7 Qde6 N3d5 Ke4 Nh4 Nf3 Ng1 Bg2 e2 Qf5 Rb8 Ng5 Nhf3 Nd6 Rb5 Ne6 Rb6 Qfh7 Rb8 Nf5 Rb5 Nh4 Rb8 Qbd6 Rbb1 Qf5 Ncb5 Qb4 Nbc7 Ng5 Nb6 Rc6 Bd6 Bg7 Be5 Rf6 Nd4 Rf8 Ngf3 Rg1 h1R Qfd7 h2 Bh3 Nbd5 Rg3 Re1 Bf5 h1N Be6 Ng1 Bg8 Rf1 Ra3 Ndf3 Ra6 Nh2 Raf6 f3 Qf5 Ra5 Ne6 Ra6 Qb8 Raa1 Qbb4 Ng3+
RNNK2QR/1r3Bb1/2b5/3np1b1/n4PQ1/b1brBrqb/1pk3b1/5BR1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 c4 Kf5 a4 g5 f3 d5 h5 b5 h6 e5 a5 b3 h7 d3+ Ke3 b4 c5 b2 a6 d2 a7 d4+ Kf2 e3+ Kg3 e2 c6 e1B+ Kg2 b3 c7 g3 Kh3 g4+ Kg2 d3 Ne2 Ne7 Nf4 Nd7 Ra4 Nd5 Rc4 Qh4 Re4 N7b6 Ng6 Bg7 Rh2 Rd8 h8R Na4 Nc3 b1R Qe2 d1B Rb4 d2 Rg8 b2 Qc4 Rb8 a8Q Rb7 Nb5 Bc2 Rb3 d1B Be3 Be4 Ra3 Bc3 Na7 Bd7 Rh8 Bc6 c8B+ Rdd7 Rh1 Qg5 Kg1 g2 Kf2 g1B+ Kg3 Qf4+ Kh4 g3+ Kh5 g2 Nf8 Qg3 Qd4 Bf2 Rg1 Bdc2 f4 Rd1 Qc5 Rd3 Qe7 Bfe1 Qh4 Rb3 Ba6 Rdb7 Nd7 Bf3+ Qg4+ Ke4 Kg6 Bcd1 Rgh1 g1B Kf7 Bg2 Ke8 Bdf3 Ra2 Bh3 Nc8 Bfg2 Bc4 Bgf2 Rg1 Ra3 Bd2 Bc5 Kd8 Rab3 Be3 Ba3 Nb8 Bf2 Ba7 Bfc5 Bb6 Ke3 Ba7 Kd2 Ra1 Bd6 Be3+ Kc2 Ra2 Ndb6 Bf7 Nd5 Qa7 Bdf8 Qc5 Bh6 Qd6 Bfg7 Qf8 Rd1 Qg8 Rd3 Ra1 Bg5+ Ne7 Ba5+ Bb6 Rf3 Rd1 Bd6 Rb1 Rbd3 Ra1 Bc3 Be3 Nab6 Ra7 Na4 Ra8 B5h6 Nc8 Bdb4 Na6 Ba3 Nb8 Bg5+
4q3/bb2kB1N/2pRb1r1/P5bn/Nr2n1pb/1rRBNb2/KB4Q1/5b1Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 g5 d4 b5 Kd2 f5 Kc2 f3 Kb2 f2 h4 c6 e4 f4 d5 f3 d6 b3 a5 c3+ Ka3 c2 h5 b4+ Kb2 g3 d7+ Ke7 e5 g2 e6 g4 h6 Na6 h7 Nf6 Qd2 Rb8 Rh6 Qe8 d8N Nc5 Qd1 Nh5 Bd3 f1B Na3 f2 Nc4 Be2 Rg6 f1B Rh6 Rg8 h8Q Rg6 Qd2 Bb7 Nf3 g1B Ra3 Ne4 Ng5 Bf3 Qg2 Ba7 Ka1 b2+ Ka2 b1R Rc3 Bg7 Ne3 Rb3 Nh7 Bf6 Ba3 c1B Bb2 Ba6 Nb7 Bh4 Nc5 Bb7 Nc2 Bcg5 Ne3 Bc8 Na4 Rb5 Qe5 Bb7 Qeh2 Ra3+ Kb1 b3 Qhh1 Rb4 Qhh2 Qd7 Nf5+ Kd8 Ne3 Rg8 Bc1 b2 Qhh1 Rab3 e7+ Ke8 Rd6 Rg6 Ka2 Kf7 e8B+ Ke7 Bf7 Qe8 Nf6 b1B+ Ka1 Ba2 Bb2 Ra3 Nh7 Be6+ Kb1 Rab3 Ka1 Rg8 Ka2 Rg6
3R4/1RpbBNpb/2Nbr3/1B1n3k/3n2bb/7b/N1bQnQP1/K4qrR w - - 0 1 legal: proof: f4 d5 b4 a5 h4 axb4 c4 dxc4 h5 e5 h6 exf4 Ba3 Qd6 Bb2 Qxh6 Bc1 Qh2 e4 f5 a4 Kf7 d4 Kg6 Kd2 b5 Kc2 h5 Kb2 h4 a5 c3+ Ka2 c2 d5 b3+ Kb2 b4 d6 h3 a6 f3 e5 f2 a7 f4 e6 f3 d7 Nf6 d8Q Rh6 e7 Qf4 e8N h2 Ne2 Nd5 Nd2 Nc6 Qd7 Bd6 Qe1 Nd4 Nb1 Kh5 Qc6 Re6 Rg1 h1N Nbc3 Ng3 Bd2 c1B+ Kb1 b2 Na4 Rb8 Nec3 Nge2 a8R Qf6 Bh6 Bg5 Qd2 Bh4 Qc5 Qf8 Ka2 b1B+ Kb2 b3 Rh1 Rb7 Nb6 Bc2 R1a7 Rb8 Ka1 b2+ Ka2 b1B+ Ka1 Bh7 Nc4 Bbc2 Na5 Rb4 Nc6 Rb1+ Ka2 Bd7 Bg5 Bhf5 Be7 Bh3 Qb6 Nb3 Nf6+ Kg6 Rb8 Ng1 Qb5 Nd4 Nh7 Kh5 Bc4 f1B Ng5 f2 Rd8 Bfd3 Rb7 f1B Qa6 Qf4 Nf7 Bh7 Bd3 Be2 Qb5 Rb3 Ka1 Beg4 Na2 Qf6 Bc4 Rbe3 Qb1 Re1 Bb5 Nge2 Qbc1 Rg1 Qf1 Nec3 Qfe1 Qf1 Qf2 Nce2 Qd1 Bb1 Qd2 Bbc2+
4bnQ1/1Bqr1r2/2b4B/1rkN3R/K2b3n/6Rp/N1b2p1P/1QRq1Qnq w - - 0 1 illegal: No possible last move, all moves rejected
1n3rk1/1RN1n2b/q2n1bn1/4B3/1r2N1qq/Q1pBK3/2NBRp1P/3Qr2b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 d4 b5 a4 c5 e4 f5 e5 Kf7 a5 g3+ Kf3 g2 d5 b3 d6 b2 a6 g4+ Kf2 c3 d7 f3 a7 g3+ Ke3 b4 Bd2 f4+ Kd3 f2 Ra4 f3 Ra2 b3 Ke4 c4 Ke3 c2 Kd4 c1N Ne2 g1R Qe1 g2 Qd1 c3 Ng3 Be7 Ne4 Nd3 Ra6 Nf4 Be3 Ng6 Ned2 Rh4+ Bf4 Bf6 Bd3 f1Q Ne4 f2 Be3 Bb7 Rb6 N8e7 Bd2 Kg8 Na3 b1N Nc2 b2 Ke3 Na3 e6 b1B Rb3 Bd5 Rb6 Nb5 Rb7 Qc8 d8B Qc4 Bb6 Nd6 Bd4 Qa6 Be5 Rg4 Nc5 Rb4 Ne4 Qc4 Ng5 Qh4 Ne4 Nec8 e7 Bc6 e8N Nce7 Bb5 Qc4 Nc7 Re1+ Kf3 Qa2 Bd3 Qa6 Rf1 Nd7 Rh1 Rf8 a8Q g1Q Qa7 Nb8 Qa8 Rf1 Ke3 Qgg4 Rg1 Bd5 Rg3 Rh1 Rg1 Bc6 Re1 Rf1 Re2 Re1 Nc5 Bh1 Ne4 Ba2 Qa7 Be6 Qc5 Bf5 Qa5 Nh8 Qa4 Bh7 Qa3 Nhg6
2qQb3/3B4/r2Br3/3kqB1R/nn1P2Q1/pNnbRK1p/1q3r1q/R1bN4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 e4 Kc6 b4 h5 g4 a5 e5 f5 b5+ Kd5 g5 c5 d3 f3 g6 f4 g7 c3 b6 h3 e6 c4 e7 h2 e8Q h4 b7 c2 Be2 h3 Ra2 a3 Qe1 a4 Bd1 c3 Ra1 a2 Na3 Nd7 b8R Ngf6 Be2 Nc5 Rb5 Ra6 Rb2 Rh6 Rb8 Nfe4+ Kf1 f2 g8B+ Rhe6 Rb3 Bh6 Rb2 Bd7 Rb5 Qc8 Nb1 a3 Bh7 Bc6 Bd2 c1Q Bf5 c2 Nf3 Qb2 Nd4 c1N Qd1 Nc3 Nb3 Bd7 Qg8 Be8 Beg4 Bg5 Rg1 h1Q d4 Qh2 Be3 Nd3 Rg3 Nb4 Bd2 Bh6 Re3 Bg5 Rb7 N5a4 Rh7 Ne4 Ke2 f1B+ Kf3 Nec3 Be1 Bd3 Rh5 Bh6 Bg3 Bg5 N1d2 Bh6 Nc4 Bg5 Rb1 a1Q Qe2 Qaa2 Ra1 Qab1 Qf8 Qe1 Qd1 Rh6 Bd7 Rhe6 Bf5 Bh6 Qe7 Bg5 Qd8 Bh6 Kg4 f3 Bd6 f2 Kf3 f1R+ Kg4 Qb1 Nb2 Rf2 Qe2 Qc2 Nd1 Qb2 Qf3+ Kc4 Qg3 Kd5 Qg1 Qe5 Qg3 Qh1 Qg1 Qhh2 Qg3 Rg2 Kf3 Re2 Qg4 Bf4 Re4 Bc1 Re3 Rf2+
Nbn5/1n1n1Rq1/2r2QqN/2BR1r1Q/1p1pb2n/2Q1P2b/k1B1K1q1/Nr6 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 c4 d3 Bd2 b3 a4 Ke7 g4 Ke6 g5 f5 g6 d5 e3 b5 g7 h5 c5 b2 c6 d4 c7 Kd5 a5 Kc4 a6 h3 a7 h2 Nf3 b4 Bc3 h4 Ra3 h3 Ng5 f3 Bd2 f4 Ra2 Qd7 Ne6 Rh6 Bc1 f2+ Kd2 f3 Nc3 b1R Qe1 Kb3 Rc2 Ne7 Rg1 h1B g8Q h2 Bh3 f1Q Bf5 f2 Rg7 Qg1 Qd1 f1Q Na4 Bf3 Rc3+ Ka2 Rc5 h1N Qh8 Ng3 Nd8 Ra6 Bh7 Ngf5 Nf7 Nh4 Nh6 Qgg4 Qe2 Qfg2 Rh5 Qdf5 Rf7 Rg6 Kd1+ d2 Nc5 Re6 Qe5 Qg7 Qf6 Qfg4 Bc2 Q4g6 Re5 Be4 Nb3 Rd6 Qef3 Bh3 c8Q Nd7 Qc3 Nc8 Na1 Rc6 Qh5 Bd6 Rg5 Rb8 a8N Rb5 Rc5 Bb8 Rg5 Qh1+ Ke2 d1N Bd2 Nf2 Be1 Nd3 Bg3 N3c5 Bd6 Nb7 Rf5 Re5 Bc5 Qhg1 Rf2 Rg5 Rf5 Qg3 Re5 Rf5 Rd5 Qg2#
1n1kb1b1/r2BqqrR/4Q1R1/3nbB1K/1pp1q1N1/Pn6/3rrB1N/2R4Q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 c5 g4 f5 e4 b5 d4 c3 a3 b3 e5 h3 g5 h4 e6 c2 d5 h2 g6 h3 e7 c4 d6 b4 g7 b2 Bg2 Be6 Ne2 Ra7 Qd3 Nf6 g8R Rh7 Qb3 Nd5 Rg3 Bg7 Rf1 h1B Rg6 h2 Nd4 Bg8 Qe3 Be5 Nd2 b1Q Ne4 Rg7 Nf2 Qd7 Bd2 c1N Ng4 Nb3 Rc1 Qd3 Be1 Qe4+ Kf2 f3 Bh3 f4 Rab1 Kf7 e8B+ Kf8 Qe2 Qe7 d7 Bg2 d8Q h1R Ra1 Rh2 Bd7+ Kf7 Qb6 Kf8 Bf5 Ke8 Qe6 Kd8 Qd1 Bh1+ Kf1 Re2 Bf2 Rd2 Kg1 Re2 Kh2 Bg2 Qh1 Rd2 Be1 f2 Nf3 f1R Bf2 Re1 Rab1 Bf1 Ra1 Bd3 Kg2 Ree2 Ra2 Qd4 Nfh2 Bc2 Kf3 Bd3 Nh6 Qe4+ Kg4 f3+ Kh5 Bc2 N6g4 Bb1 Be3 f2 Rac2 f1Q Bf2 Na5 Rc3 Bc2 Rg3 Ba4 Rh6 Nb3 Rh7 Ra2 Nf6 Be8+ Rg6 Rab2 Nfg4 Rbd2 Qc6 Bf4 Bd7 Qf6 Nh6 Qfg2 Qe6 Qf7 Bf5 Qe5 Qc6 Qge4 N6g4 Qee7 Qe6 Be5
b1Rq1n2/qr1r1k1q/2B1n1Nr/5rp1/2Q1NQQ1/2n5/1PbRpB1b/N5K1 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 f4 g5 Kf2 d5 c4 e5 h4 a5 f5 e3+ Kg2 a3 f6 e4 h5 g3 h6 a2 h7 d3 c5 d2 c6 e2 c7 e1R Be2 e3 Na3 a4 Nf3 d4 Rb1 a1N Qc2 d1B Rf1 d3 Kh1 g2+ Kg1 d2 Nb5 a3 Ne5 a2 Qe4 Ra7 Na3 Nc2 Qb7 a1Q Nd7 Kf7 Qb6 Bd6 Qb7 Bg3 Nc5 Nd4 Qa6 Rb7 Nc2 Ne6 Ne4 Nd7 Bb5 e2 Bc6 Ndf8 Qd3 Ne7 Qc4 Qa3 Ra1 Qad3 Ra8 Nd5 Na1 Nc3 Rb8 Bd7 c8Q Bc2 Ra8 d1R Be3 Be8 Bf2 Q3d7 Rb8 Q7e7 Ra8 Rdd7 Rb8 Red1 Ra8 R1d5 Rd1 Rf5 Rd2 Rg8 h8Q Rg6 Qh2 Rh6 Rb8 Kg8 Qh4 Qh7 Qg4 Bg6 Qc7 Kf7 Qcf4 Bh5 Qh3 Bg4 Rc8 Bf3 Qhg4 Re7 Nc5 Bd5 Ne4 Rbd7 Bb5 Ba8 Ba4 Rb7 Bc6 Red7 Be3 Kg8 f7+ Kg7 Bc5 Ng6 f8N Kf7 Bd4 Bh2+ Kf2 g1Q+ Kf3 Qe3+ Kg2 Bg3 Bb6 Qc5 Ba7 Qa3 Bf2 Qa7 Kg1 Rdc7 Nd7 Nf8 Ne5+ Kg7 Qe3 Rd7 Ng6 Kf7 Qef4 Bh2+
r4b1B/2R1N1Bn/1R2r3/bBQnP3/KqQp1QnN/1rb2p1b/2k3q1/5q2 w - - 0 1 illegal: No possible last move
Rn4qb/3b4/Q1N3n1/n2p1Nr1/2N4q/1kb2pqr/3QP1B1/R1BRr1nK w - - 0 1 illegal: No possible last move, all moves rejected
5nq1/N1bQR3/NBB1n2n/p2R1qrk/4N3/4qp2/3BQ1bP/r2bK1rr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 e4 d5 b4 g5 c4 f5 b5 Kf7 b6 Kg6 b7 a3 e5 d3 c5 d4 c6 f3 c7 d2+ Kf2 f4 e6 d3 e7 a2 e8N Nh6 Na3 Rg8 Qa4 d1B Nc4 g3+ Ke1 f2+ Kd2 g2 Nf3 g1Q Qa5 g4 Nf6 g3 Qe5 g2 Ng5 Bd6 Nd7 Kh5 Nh3+ Rg5 Na3 Qg8 Nc5 Nd7 b8B Nf8 Nb5 Ba6 c8Q Bc7 Qe2+ f3 Rb1 a1N Qd7 Nc2 Ra1 Nd4 Ra5 Be5 Bc7 Nde6 Bb6 Bc7 Nd4 Bb5 Na6 Bc4 Rd5 Bb5 Kc3 d2 Nc6 Bd3 Qe5 Bb5 Bc4 f1Q Nf2 Qe1 Ne4 Qge3+ Bd3 Q1f2 Re1 g1R Re2 Qf4 Bc2 Bd3 Ba4 Qf5 Re1 Bf1 Bb5 Bde2 Kc2 d1R Bd2 Qe3 Qb2 Bc4 Ba4 Ba2 Qb5 Ra1 Qe2 Bb1+ Kd1 Re8 Nab4 a5 Na6 Re7 Na7 Rh1 Qd3 Reg7 Bc6 Rgg1 Re2 R7g5 Ke1 Bc2+ Bc1 Bd1 Bd2 Qd4 Re3 Qde5 Qe2 Qd4 Nf2 Qdf4 Ree5 Qe3 Ne4 Nd4 Re8 Nde6 Re7 Bg2#
3nQ3/4R2b/Rb1q1bp1/QNkn1rNq/P2n3r/3q1pB1/br3B2/1BK3N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 h4 Kd6 c4 f5 e4 b5 a4 g3 e5+ Kc5 e6 d5 e7 f3 e8N d3 h5 f4 h6 d4 h7 b3 Bb2 b4 Kc1 g2 Be2 f2 Ra2 f1Q Nf6 Nc6 Rh3 Be7 Bc3 d2+ Kb2 d3 Ra1 Nd4 Na3 Be6 Rb1 Ra5 Re3 Qd6 Bh5 Nh6 Be2 Nf7 Ng8 Nd8 Nh6 Bf6 Qe1 d1Q Nf7 d2 Bd3 Qh5 Ng5 d1N+ Kc1 f3 Nb5 g6 Bb2 Bg8 Re7 Nc3 Ba1 Nd5 Bc2 N4c6 Be5 Nd4 Bg3 Qd3 Rb2 Qg4 Bb1 Qh5 Ne2 g1B Rc2 Bf2 Ng1 Qe4 Re2 Qf5 R2e6 b2+ Kd1 b3 Kd2 Kb4 c5 Kc4 c6 Kc5 Kd1 Qd3+ Qd2 Be3 c7 Bf2 Bc2 b1B Kc1 Ba2 c8Q+ Qc7 Ra6 b2+ Kd1 Be3 Qd7 Qd6 Qe8 Qf5 Bd3 Bf2 Qe1 b1R+ Kd2 Rb2+ Kc1 Re2 Bb1 Qd3 Na3 Rb5 Qd2 Rb2 Nb5 Re5 Qe1 Rf5 Qe5 Be1 Bf2 Ba5 Qe1 Bb6 Qa5 Be6 Bg3 Rf8 h8B Bg8 Bg7 Bh7 Bh6 Rf4 Bf2 Rh4 Bg3 Bh8 Bg7 Rff4 Be5 Bf6 Bf2 Rf5 Bf4 Bc4 B4g3 Ba2
n7/1b1rnBN1/1n1prB2/1R1NQ1pK/qR1qr1QR/7b/4P3/krb2Bq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Ke6 h4 Ke5 a4 g5 h5 b5 c5 f5 h6 f3 Kg3 b3 a5 f4+ Kh2 b4 h7 d3 a6 Kd4 c6 f2 c7 b2 a7 b3 Bh3 f1B Nc3 b1R Ra6 d2 Ra1 b2 Ra5 f3 Kg3 f2 Ra3 Na6 Na2 Ne7 Rc3 Bb7 c8R Nc7 Qc2 d1Q Qg6 Qa4 Rb3 Bg7 Rb5 Re8 Bf4 Rd1 h8Q b1R Nb4 Kc3 Qe4 Kb2 Nf3 Ka1 Nd5 Bb2 Nd4 Bc1 Qhe5 Rb8 Bd2 Na8 Rc4 Bg2 Rcb4 f1N+ Kf2 Ne3 Kg3 Qb6 Nf5+ Qd4 Ng7 Nc4 Be1 Ncb6 Bc3+ Rb2 Q4f4 d6 Qff5 Rbd8 Rh2 Rd7 Qfe4 Bh1 Bf1 Bg2 Rh4 Bh3 Q4f5 Qc5 Qff4 Rd4 Qf3 Re4 Qg2 Nc7 a8B Qd4 Qf3 Bc6 Bb7 Nca8 Bc8 Bb7 Qff4 Rdd8 Be6 Rd7 Qf3 Ng6 Bf7 Re6 Qef4 Ne7 Q4e3 Qd3 Bf6 Qd4 Qff4 Rb3 Qe5 Rb1 Qg1 Qb2 Kf2 g3+ Kf3 g2 Qgd4 g1Q Qc4 Bg2+ Kg3 Bf4+ Kg4 Bc1+ Kh5 Bh3 Qcd4 Qh2 Qg1 Qd4 Qg4 Qg1
3b1n2/B3nR2/2pK2k1/4nb1r/1QPn1bNp/2R3rq/N1BB1Q1r/q2Q1q2 w - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 Kf2 h5 Ke3 f5 Kf4 Kf7 Ke5 b5 c4 c6 d4 b3 g4 f2 a4 b2 g5 b4 a5 f4 a6 h3 a7 h4 d5 f3 d6 b3 d7 h2 Bd2 Qa5+ Kf4 e5+ Kf5 e4+ Kf4 e3 d8B e2 Be7 e1B Bd8 Be7 Na3 b1N Bc1 b2 Nc2 Na3 Nh3 b1N Nb4 Bf5 Na2 Kg6 Bd3 f1Q Bd2 f2 Bc2 Nd7 Bb6 Nf8 Bc5 Rb8 Ke5 Nb5 a8Q Bd8 Qb7 Ne7 Ba7 Nd4+ Kd6 Rh5 Qb4 Ra8 Rg1 h1R Rg3 Rh2 Rd3 Qg2 Rc3 f1Q Nf2 Qh3 Ng4 Bg3+ Ne5+ Kg7 g6 Kf6 g7 Bf4 g8Q Qa6 Bc1 Nd2 Qg1 N2f3 Bd2 Qa4 Qf2 Rb8 Qc5 Rb3 Rb1 Ra3 Rb7 Rb3 Qb4 Qa5 Nc1 Qa1 Na2 Kg5 Kc5 Kh6 Ng4+ Kg6 Rc7 Ne5 Kd6 Nd5 Rf7 Ne7 Rf3 Re3 Rg3 Re1 Rd3 Re3 Rc3 Rg3
b3b1k1/RQ1B4/Kp1pqQr1/2q3QR/1nr1R1P1/3N1n1q/1Nn1r1bb/6B1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 f5 Kd3 Kf7 Kc4 h5 Kb5 h3 g4 b6 c4 h4 a4 b3 e4 h2 c5 d3 e5 f3 c6 f4 a5 h3 a6 d2 c7 f2 a7 b2 Qc2 d1Q Qb3+ Qd5+ Ka4 f3 Qa3 Nc6 Qc3 Nge7 e6+ Kg8 Ra3 Ne5 Qd2 N7c6 e7 Nb4 e8Q Qe7 Nc3 b1N Bb5 f1B Ra2 f2 Bb2 Qde6 Ba1 Bg2 Qh5 f1Q Nd1 Qc5 Bd4 Na3 Qf2 Rh6 Qf6 Bd6 Nb2 Rg6 Qhg5 Nf3 Ne2 Nac2 Bg1 Ba6 Ra1 Re8 a8R Bg3 c8Q d6 Qb8 Bc8 Ra5 Bd7 Ra7 Rc8 Qb7 Be8 Nc1 Rc6 Bf2 Qd3 Re1 h1B Bg1 h2 Re4 Qdc3 Ncd3 Rc8 Qff4 Qh8 Ra5 Qh3 Qff6 Qce5 Ne1 Nh4 Rd4 Rc4 Qa7 Bf3 Qh6 Bhg2 Ned3 Bf1 Bd7 Ba8 Re4 Nf3 Qb7 Qd4 Rd5 Qc5 Rh5 Be5 Qhg5 h1R Bd4 Rh2 Bg1 Re2 Ra2 Qc7 Kb5 Bg2 Ra1 Bh2 Ra7 Nd5 Ka6 Qc6 Qff5 Qc5 Qff6 Ndb4+
nQ1BN2Q/brB2NRp/1nk3b1/2q3R1/1pb1r1n1/1PQ2bK1/2N3q1/1r1q4 w - - 0 1 illegal: No extended proof kernel
RK1N1q2/2n2np1/QQr1qP2/N2n1qk1/bB1N1b1r/1B6/3pbnrR/3R4 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Kf6 h4 d5 f4 e5 a4 b5 f5 g3 a5 e3 Kd3 e2 h5 e1Q h6 e4+ Kc2 g2 Kb3 d3 c5 d4 h7 e3 c6 e2 a6 d2 c7 d3 a7 Na6 Nc3 Kg5 f6 Bd7 c8Q Nc7 Ra3 Bd6 Ra2 Qf8 Ra5 Nh6 Na2 Nf7 Rh2 Bf4 Qa6 Rc8 a8R Be8 Qc2 d1B Ba3 d2 Nc1 Bc6 Bb2 Bf3 Bc3 Bh5 Ra1 Bf3 Kb2 b3 Bb4 Bh5 Ka3 b2 Qc3 b1Q Qcc6 Ba4 Qcb6 Qf5 Nb3 Bf3 Rd1 Bg4 Na5 Bh5 Bc5 b4+ Ka2 b3+ Ka3 b2 Kb4 b1N Nf3+ Kh6 Be7 g1R Nd4 Kg5 Bg2 Nc3 Bd5 Bf3 Bb3 N3d5+ Kc5 Rg2 Bd6 Qg3 Be7 e1N Bd6 Be2 Be7 Rg8 h8N Qgh3 Bd6 Nf3 Be7 N3e5 Bd6 Ng4 Be7 Nfe5 Kd6 Nf2 Nf7+ Kh5 Ra1 Rh8 Nd8 Kg5 Rd1 Rh4 Bc4 Bc2 Bb3 Nf7+ Kc6 Qe6+ Kb7 Qhg4 Bb4 Qgf5 Bc4 Ba4 Bb3 Ne8 Ka7 Rc6 Kb7 Nec7 Ka7 Rc1 Kb8 Rc6
R1qk1NQ1/2NBpP1R/5b2/2Q5/3rq3/RnN1r1Bq/bn1b1rpq/3K2n1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 b5 c4 g5 f4 d5 h4 g3 a5 d3 a6 g2 c5 d4 c6 g4 f5 b3 f6 d2+ Ke2 e3 h5 g3 h6 b2 c7 d3+ Kf3 e2 h7 e1B a7 b4 Rh4 b3 Qc2 d1Q+ Be2 d2 Ra2 Nc6 Qc3 Nh6 Rg4 Be6 c8R Nf5 Rg8 Qc2 Ra5 d1R Bb5 Ne3 Be2 Bd2 Qb4 Nc4 Nc3 b1Q Rh5 b2 Nh3 N6a5 Ng5 Nb3 f7+ Kd7 Rh4 Bg7 Qc5 Bf6 Rh6 Rb8 a8N Rb4 Rg7 Re1 Rh3 Qa2 Nc7 b1Q Bf1 Qa3 Ra8 Qc8 Be2 Rd8 h8Q Nb2 Rgh7 Rd4 Qg8 Bc4 Nge6 g1N+ Kg2 Qba2 Bg4 Re3 Bf5 Bd5+ Kf1 Qab1 Bg4 g2+ Kf2 Qe4 Bf5 Qf4+ Rf3 Qbe4 Bh3 Re8 Nf8+ Kd8 Bd7 Qh2 Na4 Bb4 Bd2 Be6 Be1 Bd2 Nc3 Nc1 Rf5 Ba2 Rd5 Qb3 Rd6 Qbe6 Rda6 Nb3 Ra3 Qeh3 Rh8 Na4 Qg6 Na1 Bc6 Bc1 Qa7 Rd2+ Ne2 Nb3 Qc5 Nb2 Rh7 Qb8 Qg8 Kc8 Ba4 Red8 Bc6 R8d4 Be8 Rd1 Nc3 Kd8 Bd7 Qc8 Bd2 Red3 Bf4 Re3 Bg3 R1d2+ Ne2 Rc2 Ke1 Nd3+ Kd1 Rb2 Nc3 Rf2 Qh8 Bd2 Qg8 Nb2#
k2K1R1n/2P2Nqb/b2r1b2/6Bp/1Nq5/n2Qrnq1/NrRRBb1p/5Q2 w - - 0 1 illegal: No possible last move
1q1n2B1/2p5/3rRn2/p2bnqkq/Q1r1b3/Nr3Q1n/P1N2N2/1BbRBK2 w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 e4 Ke7 g4 Kf6 b4 d5 b5 h5 b6 a5 b7 h3 Na3 h4 Nf3 d2+ Kf2 d4 Rh2 d3 Ne5 f3 Rg2 h2 Bb2 h1Q Nb1 h3 Na3 h2 Rg3 Bf5 Nac4 Rh4 Nb6 Ba3 Bh3 Nc6 Rb1 Rb8 Qf1 d1N+ Ke1 Nf2 Bc3 Qc8 Ra1 Nd8 Nbc4 Bb2 Na3 Bg6 Rd1 Bc1 Rd2 Bh7 Rg1 Bf5 Re2 Be6 Nec4+ Kg6 g5 f5 e5 f4 Nb2 Nf6 Bg2 Kh5 g6 Kg5 g7 N2g4 g8B d2+ Kd1 f2 Be4 f3 Nd3 Bf7 Qg2 f1B e6 f2 e7 Bc4 Qg3 Bg2 e8Q f1Q+ Re1 Be6 Qa4 Qf5 Ke2 d1R Nf2 Rd6 Bb1 Bed5 Qd3 Ne3 Rd1 Rc4 Rge1 Neg4 Qg3 Bge4 Bb4 Bc2 Qc3 Qhf3+ Kf1 Bd3+ Re2 Bc2 Re5 Bce4 Re6 Ne5 Qcb3 Qh5 Be1 Ra8 b8N h1N Na6 Rb8 Qf3 Rbb4 Ng4 Rb3 Nb4 Nf2 Nbc2 Nh3 Nf2 Qb8
1rB5/NP1B1bR1/R6q/bb1QR3/3Kn3/1qpbr1BQ/k1N1npr1/1n3q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 e4 Kc6 b4 Kb5 d4 c5 g4 a5 d5 f5 e5 h5 e6 f3 Ke3 a3 g5 a2 g6 f4+ Ke4 f2 e7 h3 e8Q+ Bd7 d6 h2 g7 a4 Qd5 a3 Bh3 Ka4 b5 Kb3 b6 f1B b7 h4 Be3 f3 Qf5 f2 Nc3 Qb6 Qg4 Ne7 g8B Bd3+ Ke5 Nd5 Bg5 Na6 Rd1 a1R Qe4 a2 Qg4 Bb5 d7 Rb8 Nb1 c3 d8R c2 Qe7 c1N Re1 c4 Qe8 Ne2 Na3 Ndc3 Bf1 h3 Rd6 Nc5 Bh4 Nb1 Be6 Rg8 Nc2 Ne4 Bc8 c3 Qc6 Rg6 Re6 Bb4 Bg3 Ba5 Nf3 Kb2 Rg1 h1Q Rd6 h2 Bh3 Kb3 Rg2 Qf1 Qh4 h1B Bhd7 Qe3 Rf6 Qh6 Nfd4+ Kb2 Rg1 Bf3 Qc5 Bh5 Ra6 Rg4 Qh1 Bf7 Nc6 Kb3 Na7 Rg8 Bf4 Rg2 Bg3 Kb2 Qh3 Kb3 Rc1 Qd1 Qd5+ Kb2 Na3 Qb3 Rce1 Nf4 Kd4 Nbd2 Bh2 Rg6 Qc5 Ng5 Re5 Re1 Bg4 a1Q Rg2 Nge4 Qd6 Re3 Bgd7 Qf1 Qd5 Ka2 Nc2 Nb1 Rg3 Rc6 Rg8 Rg6 Rg7 Rg2 Bg3 Ne2#
1qRB3R/bp1p1n2/bq5Q/1P1rNrB1/k1q5/2Q1N2r/1b2n1Rn/2Qb1K2 w - - 0 1 illegal: Other
1b3Q1N/P1qr1q1n/b4q1p/2N1Bb2/1r5K/q1Q1n1Rn/4BRp1/1kr1R1B1 w - - 0 1 illegal: No possible last move
2RRNQQn/prq2b2/2R5/k2N3K/2p2n2/qb2r2N/1nbP2q1/B1br1B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 b4 Kb5 g4 f5 e4 h5 e5 c5 g5 a3 g6 h3 e6 h2 g7 a2 e7 h4 e8Q+ Nc6 Qee1 h3 Qde2 Nce7 Qe6 Rh7 Qd6 Ng6 Ba3 Be6 Qd3 N8e7 g8N Nh8 Qee4 Neg6 Nh6 Rb7 Qdd4 Bf7 Bd3 Qc7 Qc3 Re8 Qe2 Re3+ Kf2 f3 Qe5 f4 Qf1 Bg7 Qe4 Bb2 Qd5 Bc1 Be2 Ka4 b5 c3 b6 c2 Ng4 Ka5 Qd8 Bb3 Nc3 c4 Rb1 a1Q Bb2 Qa3 Nd5 Re5 Qg2 Re3 Kf1 f2 Ba1 Bb2 Qf6 c1N Qf8 Nd3 Ngf6 Bc1 Ne8 Nb2 Bd3 Rg3 Ke2 f1B+ Kf2 Re3 Qg3 Bg2 Bf1 Be4 Qg4 f3 Qc8 Qcc5 Kg3 f2+ Kg4 Bec2 Kh5 Qc7 Qe6 Rd3 Qeg8 Re3 Be2 f1Q Bd3 Rb8 b7 Qg2 Be2 Rd8 b8R Rd7 Bf1 Rf7 Nf3 Rfe7 Rg1 h1R Rd8 h2 Ng5 Rg7 Nh3 Rf7 Bd3 Rd7 Re1 Rg1 Rf1 h1B Rf6 Rd1 Re6 Qb8 Be2 Rb7 Rc6 Qc7 Bf1 Qgh2 Ne7 Bd5 Rc8 Bf7 Nd5 Qg2 Rd8 Na4 Rb2 Ba2 Rbb6 Bab3 Rc8 Nb2 Rd6 Qh1 Rdd8 Qg2 Rc6 Nf4+
3b3B/b1rn1pNp/R1P3Q1/q2Rn3/Br3KR1/n1rr1B2/4b3/1kr2rNQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 e3 a5 c5 d5 b5 d3 b6 h3 c6 h2 b7 d4 g5 a3 g6 a2 g7 a4 Bb2 a3 Qe1 f3 Bc1 f2 Bh3 f1R Qg3 Bc5 Be6 Nd7 b8R Qa5+ Rb4 Ne7 g8Q Ba7 Bh3 Rb8 Bb2 Ng6 Be6 Ba6 Qh3 Nge5 Bb3 Rb5 Qgg3 Rc8 Ba4 Rc7 Qh6 Rc5 Qe1 Rc3 Qg6+ Kd5 Rb5+ Kc4 e4 Rf4 Rd5 Rh4 Kd1 d2 Ke2 d1R Nd2+ Kb4+ Kf2 d3+ Kg3 Rdc1 Nf1 d2+ Ne3 d1R Qf1 Bd3 Nf5 Be2+ Qf3 Rdd3 Ng7 Nc4 e5 Re4 e6 Nce5 Bb5 Kb3 e7 Kc2 e8B Rb4 Ba4+ Rcb3 Rb1 a1N Bd4 a2 Kf4 Rf1 Rb2+ Kc1 Rc2+ Kb1 Rc4 Nc2 Bb2 Nb8 Bd7 a1B Bg4 Na3 Bc3 Rc1 Qf1 Nbd7 Bf3 Rb5 Bb2 Rc3 Rb4 Rb8 Rb6 Rbb7 Ra6 Rb4+ Kf5 Rcb3 Nh3 Ng4 Nh5 Rd2 Bh8 Rdd3 Rg1 h1R Ng7 Bf6 Rg3 Nge5 Rg4 Bg5 Qg2 Rhf1 Qh1 Rbc3 Ng1 Rb6 Ke4 Bd8 Kf4 Rb4+
1n2K1q1/p2B3k/3NpR1r/1N6/3rP2r/1b1QRn1Q/4RbN1/nnBn2nb w - - 0 1 legal: proof: g4 c5 h4 b5 a4 bxa4 d4 cxd4 g5 f6 Rh3 fxg5 Rh2 gxh4 Rh1 h3 Kd2 Kf7 Kd3 Kg6 Kc4 h5 Kc5 d5 f4 h2 b4 a3 c4 h4 e4 a2 b5 h3 b6 d3 b7 d4 f5+ Kh7 f6 g5 f7 g4 Qd2 g3 Qb4 g2 Ne2 g1N Qb5 d2 Na3 d1N Nf4 d3 Ng2 d2 Qa6 Bd7 Nb5 e6+ Qd6 Ne7 Qd3 Qc8+ Kd6 Nc3 c5 d1N c6 Nb1 c7 Bh6 f8Q Ng6 Qf5 Qg8 c8N Be3 Kc7 Bf2 Ncd6 Bc6 Qff3 Be8 Kd8 Ne5 Qg4 Nef3 Ke7 Na6 b8R Bh5 Re8 Rd8 Rf8 Nb8 Rf6 Be8 Qg3 Bc6 Qg4 Bd5 Be2 Bb3 Bf1 Na3 Rb1 a1N Rb2 Nb1 Re2 Rc8 Re3 Rc4 Be2 Rd4 Qg3 Nh4 Bh5 Nhf3 Be8 Ne2 Rf1 h1B Re1 Neg1 R1e2 h2 Qh3+ Kg7 Re1 Rh6 R1e2 Kh7 Bd7 Qc8 Qh4 Qg8 Nf4 Bg2 Qg4 h1R Qh5 Qg3 Ke8 Rh3 Qh4 Bh1 Ng2 Rh2 Qg4 R2h4 Qh3 Qg8+
nNrq3k/RR1Nq3/1QB3Qn/1Kbn3n/p2n2P1/4Nr2/R5pB/3bn2n w - - 0 1 illegal: No proof kernel
3Q3r/R1qrr2b/2Bpr3/4q1p1/1RrnN2Q/nP1Nk1B1/r1R1B1K1/3r2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 c4 Kd6 h4 Ke5 e4 g5 c5 a5 b3 f5 c6 a3 h5 d3 c7 Kd4 h6 a4 e5 a2 e6 f3 h7 d2 e7 a3 e8Q f4 Rh5 Ra4 Bc4 g3+ Kf1 g2+ Kf2 Bc5 Qf7 d6 Bd5 Rc4 Qd7 Nh6 Be4 Nc6 Qh3 Nb4 Qd7 Nf5 Bc6 Nc2 Qf1 d1R Nh3 g1R Qe2 Rge1 Qee8 Re6 Be3+ Kd3 Rh4 Nfd4 Nd2 Bb6 Rc1 a1R Bb5 a2 Qh5 Na3 Bc6 Re7 Qde8 Bf5 c8B Qc7 Rc2 Re1 Qh6 Rad1 Qd7 a1R Qd8 Ra2 Ne4 Bg6 Ba6 Rd7 Ng3 Bc5 Bd2 Ree7 Be1 Bb6 Kf1 f2 Kg2 f1R Nf2+ Ke3 Nd3 Bc5 Ne4 f3+ Kh3 f2 Kg2 Bb6 Rf4 Rh1 Qh4 Rhe8 h8R Bh7 Rg8 Bc5 Rg7 f1Q+ Kg3 Bb6 Rg4 Qf6 Kg2 Rh8 Bg3 Qe5 Bab7 Rh3 Rd2 Ndb5 Rc2 Ree8 Nc3 Qb8 Qe7 Rb4 Qh6 Rc7 Bf3 Rh4 Qg6 Rh6 Bbe4 Kd4 Qh5 Re6 Qd8 Ba7 Rd7 R8e7 Be2 Bb6 Qh4 Ra7 Rb7 Bc5 Rb6 Rad7 Rb7 Qc7 Bc6+ Ke3 Rc1 Kd2 Ra7 Bg1 Rc2+ Ke3 Rc4 Nd4 Ne4 Rb5 Rca4 Rc5 Rb4 Rc4
1n2rqK1/2r3n1/rbP1r3/7b/NN1p2RQ/3pQ1Br/RrN3q1/Rr3B1k w - - 0 1 illegal: No possible last move, all moves rejected
2qqB1q1/NR1nbb1N/p4q1r/1Q1qn1B1/6K1/kr2p2R/2q1P3/2qQB2R w - - 0 1 legal: proof: g4 c5 h4 b5 a4 bxa4 d4 cxd4 g5 f6 Rh3 fxg5 Rh2 gxh4 Rh1 h3 f4 g5 Kf2 h5 Kg3 d5 c4 Kd7 b4 Kd6 b5 Kc5 f5 Kb4 f6 e5 b6 h2 f7 h4+ Kf3 g4+ Kf2 d3 c5 g3+ Kf3 g2 c6 d2 b7 e4+ Kf4 a3 c7 h3 Qc2 d1Q Qc6 a6 Qh6 e3 Ra2 d4 Qg6 d3 Rc2 d2 Qh5 a2 Qd5 a1Q Nc3 Nf6 Nf3 g1Q Nb5 Nfd7 Na7 Nc6 Ng5 Be7 f8B Rh6 Rb2+ Ka3 b8Q Qc2 Qbb5 d1Q Bd2 Qdc1 Nh7 Qg8 Bg2 Nce5 Be1 Rb8 Qd1 Bb7 c8R Bd5 Bf3 Bf7 Bh5 Rbb6 Rb1 Qac3 Rb8 Qcc8 Rb7 Q1b2 Bg7 Qbc3 Bf6 Q3c6 Rf1 h1Q Bg5 h2 Rf3 Qf6+ Kg3 Qg2+ Kh4 h1Q+ Rh3 Qd5 Kg3 Be6 Be8 Bf7 Rb4 Qc1 Rbh4 Qhe4 Rh1 Qec2 R4h3 Q8c6 Qbd3+ Rb3 Qb5 Qfg7 Kf4 Qcc8 Kg3 Q7h8 Kf4 Qf6+ Kg3 Nd3 Kg4 N3e5+
rn1br3/B1b3br/RR1bbr1p/p3NQNK/1Q1R3N/1Bq2P2/3r1kn1/8 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 c4 Kf6 b4 Kf5 g3 Kg4 c5 e5 b5 d5 c6 a5 b6 h3 b7 e3 c7 h2 Nc3 d3+ Ke1+ e2 Nh3 Kf3 g4 d4 g5 e4 g6 a3 g7 a2 Bh6 Qf6 Qb3 Bd6 Qb1 Be6 c8N Ne7 g8Q Nf5 Nd5 Ne3 Qg5 Re8 Ncb6 Ng2+ Kd2 Qg7 Qb4 e1B+ Kd1 e3 Ne7 d2 Nd7 Qe5 Bc4 Qg3 Rb1 a1B Nf5 Bc3 Rg1 h1R Bb3 Bc7 Bf8 h6 Bc5 e2+ Kc2 d1R Ba7 Bed2 Kd3 e1B Rc1 Bb2 Rc6 Rc1 Rf1 Bdf4 Ra6 Bfd6 Qf6 Bd2 Rd1 Bg5 Qf7 Bgd8 Ng5+ Kg4+ Ke2 Rf1 Nh4 Qc3 Ngf3 Kh3 Ng5+ Kh2 Qf6 Kg1 Qf5 d3+ Kf3 d2+ Kg4 Ba1 Ne5 Rb1 Rc1 d1R Kh5 Rd2 Re1 Rbd1 Re4 Rde1 Rd4 Re4 Qf3 Rf4 Qh3 Rf6 Qf5 Re1 f3 Kf2 Bd5 Re7 Bc4 Rh7 Bb3 Nc6 b8R Ree2 Rbb6 Nb8 Qc5 Rff7 Nd7 Qc4 Ba4 Bd5 Qb4 Re8 Rf4 Be6 Bb3 Bg7 Rd4 Qc3 Ne5 Rf6
2Kbn2q/1RQ4r/1bbnP3/Rpbr1B1r/3r1Brp/3N1k2/2BQ4/b1QN4 w - - 0 1 illegal: No proof kernel
nr1nrb1Q/5PN1/1nk5/qR1r3K/1r2n1n1/1Q1Bpr2/1Rb1pN2/2BR2Q1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 e5 g4 b5 a5 e3 Kf3 h3 g5 h4 Kg4 e2 f5 b3 f6 b2 c5 h2 f7 b4 a6 e4 g6 h3 g7 b3 a7 e3 Na3 b1N Qe1 b2 Qd1 d3 Bd2 d4 Qc2 Kc6+ Kf3 Nc3 Qb3 b1R Qa2 Qa5 Nb5 Nh6 g8Q Rb4 Nc7 Nb5 Bg2 Bf5 Qc4 Ng4 Ne6 Nc7 Bc3 d2 Rd1 Bc2 Qb3 d3 Qg7 Rg8 Bb2 Rh8 Rb1 d1R Bc1 d2 Rb2 Rg8 Qg5 Rf1+ Kg3+ Rf3+ Kh4 d1N Ng7 Nc3 Kh5 Na4 Qg6+ Kd7 Qg5 Nc6 Qg6 Rab8 a8R Re8 Rb8 Na8 Rb5 Nd8 c6+ Kc7 Qg5 Kd6 c7 N4b6 Rf5 Kc6 c8Q+ Nc7 Qb8 Nca8 Rd5 Rf5 Rb5+ Rd5 Be4 Rh8+ Bh7 Rg8 Nf3 Rh8 Rg1 h1R Rd1 h2 Ne1 Rf1 Nd3 Rf3 Nf2 h1N Qh2 Rg8 Qge5 Rh8 Qg1 Rg8 Bd3 Ng3+ Kg6 Ne4 Kh5 Rh8+ Kg6 Ne6 Rb1 Bd6 Qg5 Ref8 Qh5 Rb8 Rb2 Rhe8 Qh7 Bf8 Qh8 Rdd4 Kh5 Nd8 Ra2 Rd6 Rb2 Rd5+
1Q1nN3/2K1p3/2B1r2R/B1r1Pk1q/Qn2Rrr1/N2Bb3/2rnn1p1/R2bn3 w - - 0 1 legal: proof: g4 c5 h4 a5 b4 axb4 d4 cxd4 g5 f6 Nc3 fxg5 Nb1 gxh4 Bg5 h3 Bh6 Kf7 Bc1 Ke8 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 h5 e4 b5 c4 g5+ Kf3 g4+ Kf4 h4 a4 h2 f3 b3 a5 d3 c5 b2 c6 g3 a6 d4 c7 d2 a7 g2 Qb3 d1N Qa4 b4 Ra2 h3 Qb3 d3 Nc3 b1N Nge2 d2 Nb5 Na3 Qc2 b3 Nbd4 b2 Nb3 b1N Nc5 Na6 Nd3 Rh6 Nc5 Ndc3 Qa4 d1R Bd2 Qe8 Ne6 Qh5 Ra1 Rc1 N2d4 Rc2 Nb5 Nb4 Ng7 Bg4 Bd3 Rc8 a8B Ne2+ Ke3 Ke5 Ne8 Re6 Bc6 Nh6 Re1 Nf7 Rh1 Na2 Ba5 Nb4 Re1 Nd2 Rh1 Rd8 c8R Rd5 Rd8 Rdc5 Rd4 Nd8 Rc4 Rg6 f4+ Ke6 e5 Bh6 Re4 Kf5 Bb7 Re6 Bc6 Nab1 Na3 Nf3 Qb3 Ne1 Qa4 Nec3 Kd4 Bd1 Ra2 Nd2 Ra1 Kg4 f5+ Kg5 f6 Kf5 Rg1 h1R f7 h2 Rf1+ Bf4 Rf3 Rg1 Rh3 h1R Rh4 Rf1 f8Q+ Qf7 Rh7 Rh4 Rh6 Bg5 Qg8 Qh5 Qh8 Rff4 Qg8 Rb5 Qh8 Rhg4 Qg8 Rb7 Kc5 Rc7 Kb6 Ne2 Qh8 Rd7 Qg8 Rd5 Kc7 Rdc5 Qh8 Rf1 Qg8 Be3 Qh8 Rff4 Qg8 Reg6 Qgb3 Re6 Qb2 Na2 Qb8 Nb4
3RB3/n1b1bb1Q/1qbQB3/nNN1B3/1rP1Q1q1/1rKnp1pR/4bk2/b7 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 b3 a7 e2 f6 e1B h6 g4 c3 b2 f7 g2 h7 e4+ Kc2 d3+ Kb3 d2 c4+ Kd4 Rh3 d5 Be2 b4 Kc2 g3 Ra2 Ke3 Kb3 d4 Bh5 d3 Rh4 Kf2 Na3 b1Q+ Rb2 Be6 Nf3 g1B Qc2 Qd7 Qc3 Be7 f8Q Nc6 Qf7 Rb8 a8B Na7 Qe8 Bf7 Bd5 Qg4 Nc2 d1B Ng5 d2 Bg6 Be2 Qf8 d1N Qd3 Bc3 Ka4 b3 Ra2 b2 Rh3 Rb4+ Ka3 Be5 Nd4 Bc7 Qe8 Ke1 Be3 Nf2 Be6 Kf1 Qd2 Nd3 Bf4 Bf2 Nb5 Bd4 Qa8 e3 Be5 Kf2 Qe4 Nc1 Rh1 Rb3+ Ka4 Bec5 Qf4+ Kg2 Bc2 B5d6 Nc3 Ne7 Bef5 Rg8 h8Q Ba3 Nge4 Rgb8 Be6 Nec6 Qh7 Be7 Nc5 Na5 Qfe4+ Kf2 Rh3 R3b6 Ka3 R6b7 Ba4 Rb5 Qa8 R5b7 Be8 Qbg6 Bc8 b1B Bf5 Qa6 Be6 Be4 Qd1 Rb1 Rd2 R8b4 Nb5 Ba1 Rd8 Qb6 Qd6 Nd3 Qad5 B4f3 Qd4 Bc6 Qde4 R1b3+ Ka2 Nb2 Kb1 Nd3+ Kc2 Rb2+ Kc3 R2b3+
2bRN1r1/7n/k1B1K1Bn/1n2p3/1B1Qp3/2br1Q1P/r1bnnR2/1rNq2Q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 f4 d5 a4 Kd7 c4 Kc6 h3 Kb6 a5+ Ka6 f5 b5 c5 e5 c6 d3+ Ke3 g3 c7 g2 f6 b3 f7 b4 Ra4 b2 Ra1 b3 Nf3 g1R Nfd2 d4+ Kf2 g4 Be2 Bb4 f8Q Rg3 Nc3 b1R Nd5 b2 Ra2 Nh6 Nf6 Rg8 Ne8 Nd7 Qf3 Nf6 Qg1 Bc3 Nb3 Nh7 Bd2 Bb7 c8Q Ra7 Bd1 Qd6 Be1 d2 Qd7 d3 Nc1 Ra8 Bb3 d1B Bf7 d2 Bg6 Bc2 Rh2 Qd5 Ra4 Qb3 Qd4 Qd5 Rc4 Qd8 Rc8 d1N+ Ke2 Ra7 Rf2 Qd5 Rd8 Qb3 Qfh1 Rd3 Qf3 g3 Bd2 g2 Be1 Kb5 a6 Ra8 a7 Ka6 Bd2 Qa4 Bg5 Qb3 Be7 Qa4 Bb4 Qa1 Qh1 g1N+ Kf1 Ne2 Kg2 Ne3+ Kh2 Nc4 Qg1 Na3 Kg2 Nb5 Kh2 Rb8 a8B Qa4 Kg2 Ra1 Kh2 b1N Kg2 Ra2 Kh2 Nf4 Kg3 Nd2 Kh4 Ne2 Kh5 Nf8 Kg5 Qb3 Kf6 Nh7+ Ke7 Qb1 Nb3 Qd1 Nc1 Rc8 Ke6 Rc4 Bc5 Rb4 Bf8 Rb3 Bb4 Rb1 Qd7 Bc8 Bc6 Bb7 Qd4 Bc8+
1b2B3/7n/2rrQR1N/Pqk2B1n/r1r5/qp1rRqBb/1p3R2/Qr1NK3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 Ke7 c4 Kd6 g4 h5 a4 f5 g5 b5 e5+ Kc5 g6 d5 e6 f3 e7 b3 e8R f4 g7 b4 Kd2 f2 Be2 f1R Re5 b2 Qe1 d3 Bf3 h3 Ne2 b3 Qd1 h2 Rf5 h4 Rg1 h1R Qe1 h3 Nec3 h2 Rfg5 Rh6 R1g3 Qe7 Qe6 Nd7 Qg6 Ngf6 g8Q Nh5 Q6e6 Ndf6 Rg6 d4 Nb5 Nh7 Bc6 f3 N1c3 f2 Nd1 Ra5 Qe1 Bh3 Rf6 Qa7 Qf7 Bd6 Re3 Bb8 Be8 Rfg1 Qg8 f1Q Nd6 Rg4 Nf7 Qa6 Rf2 Rc6 Nh6 Rhg1 Qg6 h1Q Qe6 Qf3 Ra2 Qb5 Ra3 Ra7 a5 Rac7 Ra1 Qf8 Rf6 Qf3 Qf1 Rh4 Ke1 Rg6 Bd2 Rd6 Rc1 Rgg4 Rc2 Rcc6 Re4 Qe7 Bf4 Qf8 Bg3 Rf4 Qg2 Rhg4 Rf2 d2+ Kf1 d3 Re3 Kb4 c5 Rc4 Kg1 Rgd4 Qf1 Qe7 Nc3 d1R Qe1 Bg4 Kf1 Rb1 Qd1 Bh3+ Ke1 Rb6 c6 Kc5 c7 Rbc6 c8B Ra4 Qe4 Rdc4 Bf5 Qf8 Qe6 Qe7 Ree2 Qf8 Qc1 d2+ Kd1 Rd7 Bd6+ Kd4 Nd5 Rba1 Bg3 Qa3 Nc3 Kc5 Qb1 Rdd6 Qc1 Qe4 Re3 Qd5 Ke2 d1R Qb1 Rd2+ Ke1 Rd3 Nd1 Qf3 Qa2 Rac1 Qa1 Rb1
N1BR3R/2n1bn1r/1K3npn/4n3/pkb2rQb/1Nr5/2QP1BBr/Q2q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 h4 Kd6 b4 a5 e4 f5 h5 c5 b5 a3 b6 a2 h6 g3+ Kf3 g2 b7 g6 h7 a4 Ne2 g1N+ Kf2 f3 Ke3 c3 Ng3 c2 Bh3 c4 Kd4 f2 Qg4 f1N Qf3 f4 Ne2 c3 Bd7 Qh4 Qe3 f3 Qf2 Ne3 Na3 Qh5 Qh4 f2 Rb1 a1B Rh2 f1R Bb2 c1N Qg4 Na6 b8Q+ Nc7 Qb3 Nh3 Qc2 Nd3 Nc1 Nh6 Nb3 Ba6 Bc8 Ned5 e5+ Kc6 e6 Nf6 e7 Ng5 Rh4 Ngf7 Nc4 Kb5 e8B+ Kb4 Bc6 Be7 Bg2 Ra7 Nb6 Nde5 Na8 Bc4 Rh3 Rf5 Rd3 Rf2 Rh1 Rf8 h8Q Re2 Qd1 c2 Rh4 c1R Qc2 Qf5 Rh2 Qf1 Rh4 Qd1 Qg7 Nhg8 Rh8 Rb7 Bh1 Rh2 Bg2 Nfd5 Qf6 Ngh6 Qf1 Bh4 Qe1 Nf6 Bc3+ Ka3 Kc5 Ra7 Bd4 Bc3 Bf5 Bb4+ Kb6 Be7 Bc8 Kb4 Bg1 Na6 Rd8 Nc7 Qcf5 Rc3 Bf2 Rg8 Qh1 Rg7 Qb1 Rh7 Qc2 Ra5 Qf1 Rd5 Qh1 Rd4 Qg1 Rf4 Qf1 Qe2 Qa1 Qd1
1N1Q1r1r/B2R1n2/Kp1b4/3Pp2r/1rNqbB2/2RQ1RrB/1q2n3/2r1n2k w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 f4 Kg6 a4 Kh5 d4 Kg4 f5 Kg3 a5 h5 a6 c5 a7 e5 f6 e3 f7 b6 Nc3 b3 Ra2 b2 Bd2 b1R Nf3 h3 Rg1 h4 Ra3 h2 Na4 h1R Nb2 c3 Kd3 e2 Kc4 c2 Kb5 c1Q Bf4+ Kf2 g4 h3 g5 h2 g6 e1N g7 c4 Rd3 c3 Rg3 c2 Rc3 Rg1 Qd3 Nh6 g8R h1R R8g7 Rh5 Bh3 Bf5 Rh7 Be7 f8B Nc6 Ka6 Be4 Nc4 Rb4 Rf7 Bc5 Bd6 Qb2 Bb8 c1R Re7 Qd6 Rd7 Nf7 d5 Nd4 Rg8 Ne2 Nd4 Rgg5 Nc6 Kg1 Rg6 Rg2 Rg3 Kh1 Rf3 Rg7 Bc7 Rag8 a8Q Rf8 Bb8 Rg3 Ba7 Qc7 Qc8 Bd6 Nb8 Qc5 Qd8 Qd4
r2b1BR1/nN6/pQ2RN2/4r3/2P1Bb2/1K1brR1q/3Q1npr/2Qn1rkb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 h4 Kd6 b4 Ke5 c4 Ke4 Kc2 f5 h5 d5 b5 g5 b6 d3+ Kc3 d4+ Kb2 a6 e3 f3 h6 g3 h7 g2 b7 f2 Qd2 g4 Ka2 a3 Qd1 g3 Bd2 f4 Rh5 f3 Qe2 Be7 Rg5 Nf6 Rg7 Ng4 Qe1 Nc6 b8Q Na7 Rf7 Bb7 Qc1 Qc8 Rf8 Bd8 Bb4 d2 Ne2 g1B Kb3 d1R Bg2 f1B Nf4 a2 Na3 d3 Rg8 d2 Nb5 Nf2 Bf8 Bh2 Nd5 Qh3 Nf6+ Kd3 e4 Ke3 e5 Bd3 e6 Re1 Rb1 a1R e7 Ra5 Nd6 Re5 e8R Ke2 Re6 d1N Bh1 Kf1 Qc7 R1e2 Qb6 Kg1 Rb2 Bd5 Nb7 R2e3 Ra2 Ng4 Re2 f2 Be4 f1R Rf2 Bc6 Rf3 Ngf2 Rg6 Rg8 h8Q Rg7 Bf5 Rh7 Rg8 Rh5 Qh6 Rh4 Rf4 Bh1 Rf3 g2 Bh7 Bf4 Be4 Qg3 Qg5 Rh2 Qh6 Reh5 Qg5 Qh3 Qga5 Rd5 Qad2 Re5
2n1Q2Q/B4r1p/6rR/1qp3K1/1r1r4/2NRQrbP/n1rbB1Bk/3Nq2b w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 Ke2 Kd7 Ke3 Ke6 Kf4 b5 a4 g5+ Kg3 Ke5 d3 c5 h3 e3 a5 e2 a6 e1Q a7 c2 Ra5 b4 Nc3 b3 Ra3 b2 Rh2 b1R Nge2 Na6 Bb2 c1R Ra2 Bh6 Ba1 Nb4 Qd2 Qb6 Bb2 Qb5 Ra3 Bb7 Rb3 Rc2 Nf4 Bh1 Nfd5 Rf8 a8B Rf7 Ne3 Na2 Rg2 e6 Bf3 Ne7 B3e2 Nc8 Ned1 Rhf8 d4+ Kf5 d5 e5 d6 e4 d7 e3 d8Q Ke5 Bc4 e2 Qe3+ Kf5 Qde7 Rd8 Ba1 Rd4 Qe8 Rbb2 Ra3 Rb4 Ra6 Qd2 f4 e1B+ Rf2 Qe2 Rc6 Bd2 Rb6 Qe1 Bce2 Bg7 Rh6 Be5 Kh2 Bd6 Rf3 Bc7 Q3e7 Bd6 Rd3 Bc7 Qe3 g3+ Kg1 g2 Kh2 g1R Bg2 g4 Qh8 Qf1 Kg3 Be5 Kh4 g3 Bb2 Qe1 Ba1 Rf1 Bb2 Rf6 Kh5 Rf3 Bc1 Ke6 f5+ Kd6 Bb2 Rg6 f6 Ke6 f7 Kf5 Bgf1 g2 f8Q+ Rf6 Qd8 g1R Bg2 Rf7 Qde8 Bb8 Qf2 Kf4 Qfe3+ Kg3 Kg5 Be5 Nb1 Bf4+ Kh5 Rf8 Bgf1 Rd5+ Be5 Kh2 Nbc3 Rdd4 Bb8 Be5 Ba7 Rg6 Bg2 Bd6 Nf2 Bg3 Nfd1 Rgd6 Kg5 R8f7 Ne4 Rc6 Nec3 Rg6+
n5rb/4kNp1/3p3q/K1Q1b1rn/1N5n/r1PB2nR/1Qbr1R2/B3Nn1R w - - 0 1 illegal: Other
Q2R3Q/2b1NP1b/1np1r1rR/B1rbb1K1/1n2Bn2/3p4/Nnk3B1/4R1bq w - - 0 1 illegal: No proof kernel
2Q1KbQ1/R3pn1q/3nb2k/2nN3n/1Rrbp2n/2NP2Q1/6BB/1nq3rN w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 b5 g4 c5 f4 b3 a4 b4 a5 c3 g5 c2 a6 c4 d3 b2 a7 c3 Qe2 b3 Qg4 h3 Ra4 h2 Ra1 h4 Nd2 b1N Qf3 h3 Nc4 b2 Bg2 Na3 Bd2 b1N Nb2 c1B Ra2 c2 Na4 Be6 Ne2 Nh6 Qg3 Na6 Nac3 Rc8 a8N Nb5 Nb6 Rc4 Nbd5 Nc5 Ra7 Bb2 f5+ Kg7 g6 c1Q Be3 Rg8 Bf4 Nd6 Rf1 h1N f6+ Kh8 g7+ Kh7 f7 h2 Rd1 Qb6 Rd2 Ba1 Rb2 Qa5 Qg5 Ng3 Rb4 Ngf5 Ng3 Nh4 Nh1 Qa2 Qg3 Qe2 Be3 Qg4 Bg1 Qg6 Nf2 h1N Bh2 Bg4 Qh3 Ng3 Nh1 Nh5 Qg3 Rh8 Ra2 Be6 Ra7 Nh6f5 g8Q+ Kh6 Qf2 Bb2 Qg3 Qh7 Nf6 Bg7 f8Q Ba1 Qc8 Bf8 Qf7 Rg8 Nd5 Rg4 Qg8 Bd7 Nc7 Nf7+ Kd5 Be6+ Kc6 N5d6 N7d5 Rf4 Kc7 Rf1 Kc6 Rg1 Kc7 Ng5 Kd8 Bb2 Nd1 Bd4 N1c3 Ndb7+ Ke8 Nf7 Rb3 Bg4 Rb5 Be6 Rb4 Nbd6+
6R1/1Q1pbB1k/1Q1r1R1r/q4nBb/2b3n1/n1n4K/1QbNNRpP/3r2n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 Kg2 f5 c4 Kf7 a4 Kg6 e4 d3 a5 b3 e5 b4 a6 g3 c5 b2 e6 b3 a7 d2 e7 Nh6 e8R f3+ Kh3 f2 c6 g2 c7 f4 Re2 f3 Ra3 Be7 Kg3 Kh7 Re1 g5 Bc4 f1R Ba6 g4 Nc3 b1N Bc4 f2 Ne4 b2 Ra1 Nc6 Nd6 Nd4 Ne8 Na3 Re3 b1B Ra2 Bb7 c8Q Bf3 Ne2 g1N Qb3 d1N Nd6 Qa5 Qcb8 Bc2 Ne4 Nc3 Bf7 Rd1 Qb2 f1B Q8b6 Rac8 a8Q Rc6 Nd2 Rd6 Re6 Ndf5+ Kf4 g3 Rf6 Bh5 Qab7 Nf3 Rg1 Ng4 Rg2 Nfh6 Rf2 g2 Kg3 Nf5+ Kh3 Kg7 Ra1 Rh6 Rb1 Kh7 Ra1 Nab1 Ra4 Na3 Rc4 Bb3 Rc8 Ba4 Rg8 Bc2 Ng3 Bc4 Ne2 Rd3 Nf1 Rd5 Bg5 Rd6 Nd2 Ng1+
2K1n1q1/1nP1pQr1/3RnprQ/B2R3r/1BrNk3/5N1n/BQb2br1/6b1 w - - 0 1 illegal: No proof kernel
1b1Kr1b1/1BpnB3/1Q1R2N1/1r4n1/b2QN1pR/r2r4/3q2NP/1kq2rBr w - - 0 1 illegal: No possible last move, all moves rejected
2N1R3/1bp1q2K/1r3np1/Nn1q2Q1/kBb2P2/b2b2bQ/NR2B2r/Q1b3r1 w - - 0 1 illegal: No possible last move
B3NnK1/2pr4/1PQ2bQ1/2n2Nnb/4n3/4nnB1/k1qR1pRB/rb3Nq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 g4 h5 e4 f5 g5 c3 b3 a3 d5 a2 g6 c2 d6 a4 d7 a3 Ke6 f3 Kf7 f2 g7 h3 e5 h4 e6 h2 e7 h3 e8N f4 Bg2 f1N Qe2 f3 Be3 c1N Bf4 f2 Be3 Nd2 Bf4 Nd3 Qe5 Nh6+ Ke6 Rh7 g8Q Nf3 Qg3 Be7 Qf6 Nf7 Qfg6 N7g5+ Kf5 Nc5 Qe6 Bf6 Kg6 Ba6 Qh4 Be2 Qh5 Qc8 d8B Nbd7 Nd2 Nf8+ Kf5 Qa6 Nf1 Rd7 Qg6 Qc4 Rd1 a1N Rd2 a2 Qc6 Ka3 b4 Nc2 b5 a1Q b6 Ka2 Bd6 Bd1 Ne2 Ra3 Rg1 h1B Bg3 h2 Be7 Qcc3 Bed6 Qcb2 Nd4 Ne3+ Kf4 Qc2 Nf5 Qc1 Bh3 Bg2 Bg4 Bh3 Rg2 h1N Bh2 Ng3 Bh5 Nh4 Bf3 N3e4 Bg3 Bg4 Be5 Bh5 Bd6 Be7 Ke5 Be2 Bh2 Bd3 Bg4 Kb2 Bf3 Nc3 Qd5 Bc4 N1g3 Qg1 Nf1 Ra1 Qde6 Ba2 Ba8 Bb1 Qd5 Bd8 Qc6 Re7+ Kf6 Ka2 Bdg3 Rd7+ Ne7 N3e4+ Kg7 Nhf3 Kg8 Nf7 Nf5 N7g5 Nfg7 Be7 Nf5 Bf6
3Q1R2/2p1Nnpb/b1B2n1b/bq3QRr/Bn1NQ3/2r1BrP1/1Kr5/4kb2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 h4 Ba3 h3 Bc1 axb6 Qb3 b5 Qf3 b4 Qg2 hxg2 Kd1 Ke7 Kc2 Kd6 d4 Kd5 a4 Ke4 h4 f5 h5 b5 e3 c3 h6 b3+ Kd1 c2+ Kd2 b4 a5 f3 h7 b2 d5 f4 d6 b3 Kc3 f2 d7 f3 a6 Nc6 a7 Ba6 Bc4 f1R Bd2 c1B Be6 f2 Nf3 g1N Rh5 Qb8 d8Q Qb5 Bd7 Nb4 Nd4 Nf3 Rg5 Ne5 Ra3 Rb8 a8B+ Rb7 Be8 Nf7 Ra2 Nf6 Qd7 Rg8 h8Q Be7 Qh5 Rh8 Qd8 Bc5 Qh3 Bb6 Qhd7 Rh5 Q7c8 Qd5 Ba4 Ba5 Qcd7 Rb8 B8c6 Ra8 Na3 b1R Nf5 Kf3 e4 Ke2 e5 b2 e6 Ra1 e7 b1B Be3+ Ke1 e8Q Qb5 Ne7 Bh7 Qf5 Bd2+ Kb2 Rc1 Nb1 Rb8 Nc3 Rb6 Ne2 Rc3 Bh1 Rbc6 Nd4 R6c5 Bc6 R5c4 Nb3 Rf4 Nd4 Rf3 Nc8 Rfh1 Qee4 f1B Ne7 Be2 Bg1 Bf4 Be3 Bf1 Ka1 Rg1 Rf2 Rgh1 Kb2 Rg1 Rg4 Bh6 Rg5 Ne5 Nd5 Nfg4 Qb8 Bd3 Qe8 Rf4 Rh2 Kf1 Rh4 Rf3 Ne7 Bc4 Qf6 Rh1 Ne6 Ke2 Qd8 Rhc1 Nd4+ Ke1 Qfg6 Bf1 Qe6 Nf6 Rf4 Nfg4 Rf8 Nf7 Q6e5 Nf6 Q5f5 R1c2+
2Q1n3/1p4kb/1rN1b2r/R1Kb1B1P/3RB3/b1B1NQ1n/q2pn3/2r2rbR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 d5 h4 f5 e4 Kf7 c4 b3 e5 f3 a5 b2 a6 d3 Ke3 f4+ Kd4 f2 e6+ Kg7 e7 d2 e8B f3 c5 g3 h5 g2 c6 g4 a7 g3 c7 Nc6+ Kd3 d4 Kc4 d3 Nc3 b1B Qe1 d1R Nd5 d2 Bf7 Be6 c8R Ba3 Rb8 Rh6 Rc8 Bh7 Qe4 Nf6 Bg6 Ne8 Bd3 f1B Bf5 f2 Qf3 Qa5 Ne2 g1N Bb2+ Nd4 Bde4 g2 Bc3 Rc1 Rd8 Nh3 Rd6 Rd8 a8Q g1B Qc8 Bg2 Ra2 f1R Ra1 Bd7 Ne3 Be6+ Rd5 Rd6 Ra2 Bb2 Ra1 Qa6+ Kc5 Rb6 Ra5 Qa7 Nf4 Qa6 Ng6 Qa7 Ne5 Ne2 Rd4 Qa8 Rb5 Qa7 Nc6 Qa2 Qf2 Bf3 Ra5 Bg2 Bc2 Be4 Qf3 B4d5 Bce4 Ba3+
3r2kB/1pr2bB1/R4K2/1PN2nr1/2b3Qq/Q1bN1pBb/R2Rb3/nn1n4 w - - 0 1 illegal: No proof kernel
N4q1K/1p1q3p/2R2rb1/B2r2kq/n1B1B1N1/QRR4P/1q1b1qn1/2qQ3b w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Ke2 c5 d4 e5 g4 Ke7 a4 Kf6 a5 c2 a6 f3+ Ke3 f2 a7 c4 h3 c3 d5 Kg5 d6 f5 d7 f4+ Ke2 e3 Kf3 e4+ Kg2 f3+ Kg3 Nf6 Ne2 Nd5 Ra5 Bb4 Ra6 Rf8 Na3 Nf4 Nb5 Rf6 Bd2 c1Q Nc7 c2 Ng1 e2 Rc6 e1Q Bd3 e3 Be4 e2 Rc3 Qf8 d8R Na6 Rd6 Qb2 Rdc6 c1Q Rb3 Rb8 a8Q Nc5 Qa3 Na4 Na8 Bf5 Rh2 f1Q+ Rf2 Bd6 Ba5 Qed2 Rg2 f2 Nf3+ Kh6 Kh4 e1Q Rg1 Qb5 Ne5 f1B+ Rgg3 Bg2 Rbc3 Rd8 g5+ Kg7 g6 Kh6 g7 Qef2 g8B Bg6 Ba2 Bb4 Bc4 Qd7 Rb3 Bd2 Ng4+ Kg7 Rc3 Bh1 Rb3 Qbb4 Kg5 Ng2+ Rge3 Qfe8 Bcd3 Kf7 Kh6 Qee5 Bc4+ Ke7 Kg7 Qh5 Bf7 Qbd6 Rec3 Qdc5 Be8 Qcd6 Kh8 Ke6 Bd5+ Kf5 Bc4 Kg5 Rbb6 Q7c7 Rbb3 Rd7 Bef7 Qf8+ Bg8 Rdd6 Bd5 Qd7 Be4 Qfe7 Bc4 Rd5 Bed3 Qec5 Be4 Qf8+
2b1BBr1/p2Nnn1P/1KQqb2p/1QN1R1rR/b2k4/n1n4B/3n1b1r/4N3 w - - 0 1 illegal: Other
1qKB1kqN/3QN3/BQ1Q2nb/4R1Bb/q1b1r1p1/4p1P1/3rqb1R/6nb w - - 0 1 legal: proof: e4 c5 b4 f5 d4 cxd4 b5 fxe4 g3 h5 b6 h4 Bf4 h3 Bc1 axb6 Qd3 b5 Qf3 b4 Qg2 hxg2 Kd2 b5 c4 d5 a4 e5 f4 g5 h4 g4 h5 d3 Ke3 d2 a5 d1Q a6 b3 c5 b2 c6 d4+ Kf2 b4 h6 d3 Ke3 b3 c7 d2 a7 Ne7 f5 Nbc6 f6 Bb7 c8Q Nd4 h7 Ng6 Ra6 Ne2 Nf3 Bh6+ Ng5 Kf8 f7 Ng1 Nc3 b1B Rh2 b2 Ra5 Ba2 Qc7 b1B Qb6 Bc4 Nd5 Qa4 Ne7 d1Q Bd3 Rc8 a8Q Qd5 Rb5 Rd8 Qaa7 Qe6 Be2 Rd2 Rc5 Bbd5 Qd7 Qa7 Bf1 Qda4 Be2 Rg8 h8B Bbd3 Bf6 Rg7 Kf2 e3+ Ke1 e4 Bcb2 Bb3 Bbe5 Bc6 Ng8 Ne7 Bf1 e2 Kf2 Rg6 Ke3 e1Q+ Kf4 e3+ Bd4 Bde4 Ba6 Qe2 Bde5 Bc4 Bc7 Bb7 Bd8 Rg7 Rd5 Bg6 Ra5 Bh5 Rb5 Qc6 Ke5 Qcf3 Rd5 Ng6+ Kd6 Qe4 Kc7 Qe6 Ra5 Rh7 Bfe7+ Kg7 Rb5 Bf3+ Kc8 Qd5 Ne4 Qe6 Nd6 Bfd5 Bg5 Rh8 Nf6 Re8 Ng8 Bf3 Ra5 Qd5 Rc5 Re4 Ne7 Qe6 Nc6 Qe8 Rb5 Qg8 f8Q+ Kh8 Nf7+ Kh7 Qfc5 Kg7 Ne7 Kf8 Qdd4 Nh3 Qcc7 g1B Re5 Bf2 Qcd7 Ng1 Nh8 Bh1 Q4d6 Qb8+
QK2B1b1/6Bk/nN2R3/6n1/bN1QqP2/r1bn2bp/1Nrp1R2/Qqbn4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Kg7 c4 b5 g4 e5 f4 d5 a5 h5 a6 d3+ Ke3 h3 g5 d2 g6 b3 a7 b2 c5 h4 c6 d4+ Kf2 h2 c7 e3+ Kf3 h3 Ke4 b4 Nf3 d3 Qb3 d1N Nc3 b1Q Ba3 e2 Ne1 Na6 Rg1 h1N Rg5 Qe8 Kd5 e4 Qa2 e3 Re5 b3 Bc1 b2 Na4 Ba3 Bd2 Nh6 Nc2 e1B Re6 e2 Nb4 Nhf2 Kd6 Bd7 c8N Rh7 Be3 Bc3 Ncb6 e1B Bd4+ Kg8 g7 d2 Bg2 Nd3 Bc6 Bg3 Be5 Rc8 a8Q Rh8 Qd5 Kh7 Qd4 Qg6 Bb5 Qe4 Bf6 Be8 Bc6 Bf7 Be8 Bg8 Kd7 Rc5 Be5 Ra5 Kc8 Nf7 Qa7 Ng5 Qa8 Qa2 Bf6 b1B Nb2 Bc2 Rc1 Nac5 Kb8 Qb1 Be5 Ba4 Bf6 Ne3 Rf1 Nd1 Rf2 Ra7 N2c4 Bc1 Nb2 Rc7 Qa6 Bb3 Qa3 Ra7 Qa1 Ra3 Be5 Na6+ Kc8 Bf7 Bf6 Ba4 g8Q+ Kh6 Qf8+ Kh7 Bg7 Bg8 Qff6 Bf7 Qfd8 Rf8 Q8d5 Bg8 Qc6 Rf7 Qa8 Rc7+ Kd8 Rc5 Nc6 Rc4 Kc8 Bb4 Kb7 Rc2 Kc8 Nc7 Kb8 Bc3 Nb4 Na6+
1n2b3/1n2Q3/Q2brB1k/K2qQ2B/2N1pnqP/N6N/b1Rp2R1/n3bbr1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kg6 f4 d5 a4 b5 c4 e5 c5 d3 c6 e3+ Ke1 e4 a5 b3 f5+ Kh6 c7 g5 a6 e2 Kd2 e1B+ Ke3 b2 Kd4 d2 Kc3 d4+ Kb3 g3 a7 b4 Ka4 d3 f6 g2 f7 g4 Ka5 b3 Rh2 g3 Kb5 Bd7+ Ka5 Bd6 f8N Nf6 Ra4 Be8 Qf3 Rg8 Nc3 b1N Nh3 g1Q Qf2 g2 Qd4 b2 Ng5 d1B Nd7 d2 Nh3 Na3 Ne5 b1B Rc4 Ba2 Be2 Nc2 Nb5 Nfd7 Bh5 Be2 Na3 Na1 Bb2 Bf1 Rc2 Nc5 Nec4 Rg6 Qe5 Re6 Bc3 Qg5 c8Q Qg4 Nb5 Qd4 Qa6 g1N Rg2 Ne2 Nba3 Nf4 Qb7 Qd5 Qe7 Nbd7 Bb2 Rb8 Bd4 Rb1 a8Q Nb8 Qa6 Rb3 Bb2 Rg3 Rf2 Rg1 Rg2 Bf7 Qf5 Bg6 Bf6 Be8 Qe5 Nb7+
1K2RBkq/1n1q1Nrb/2BRb1Q1/2n3bb/2pb1RNQ/p7/3rP2r/1Qr5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 Kf3 a5 Ke4 c5 Ke5 f5 d4 Kf7 b4 f3 g4 f4 b5 c3 g5 c4 b6 h3 d5 a3 b7 a2 d6 h2 d7 c2 Kd5 a4 Be3 c1R Bg2 h4 Na3 h3 Ke5 f2 Bb6 f1R Qd6 f3 Qd3 f2 Be3 Nc6+ Kd5 Na5 b8Q Nb7 Kc6 Ra7 Nf3 Nf6 g6+ Kg8 g7 Rfd1 Ne5 f1Q Ng4 Rd2 Ne5 Qf5 Bc5 Ne4 Nb5 a3 Rf1 h1B Rf4 h2 Ng4 Be7 Nd6 Bg5 Nf7 Qe6+ Bd6 Nec5 Qg6 Qe5 Be4 Bf3 Bf8 h1B Rb1 a1B Rb6 Qde7 d8Q Be6 Bd5 Qb2 Ra6 Qe8+ Kc7 Rh2 Rd6 Qe5 Be4 Bd4 Bc6 Be4 Qe7 Bhf3 Qed8 Na5+ Qb7 Qd7+ Kb8 Qf6 Qb1 Nab7 Qh6 Bg6 Qh4 Bfe4 Qdb6 Bh5 Qa6 Kh7 g8R Qh8 Bh6 B4f5 Re8 Bc2 Bf8 Kg8 Qa4 Bd3 Qac2 Bh7 Qg6+ Qg7 Re4 Qe7 Qh6 Nd8 Rf4 Qh8 Nfe5 Rd7 Qf6 Ndb7 Qh6 Bef5 Qf6 Qe6 Qh6 Rg7 Nf7 Qd7 Qg6 Be6
N1nqBkb1/b1r1qqb1/1N3Rn1/B2Q2b1/qRpB2Pr/2q1Q3/3p1RK1/8 w - - 0 1 illegal: No proof kernel
QB2q3/1rnR4/2BKn2n/rN2Nb1p/q4n1k/P2R1b2/QnpR1b2/2b4N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 d4 c5 g4 h5 e4 f5 d5 c3 d6 h3 d7 h2 a3 c2 Qd4 c4 Nd2 f3 Ra2 f2 Nb3+ f4 Bb2 c1B Na1 b3 Qc5 c3 Bc4 f1N Bd5 f3 Bb7 c2 Qc3 f2 Qh3 b4 Bc6 Ng3 Ne2 f1Q Qg2 Kh4 g5 Na6 g6 Nc5 g7 Nh6 g8Q Ra5 Qf7 Qf3 Rd1 h1B Rd3 Qg4 Qg8 Bg7+ Kd6 Ne6 e5 Qe8 d8R Rh7 Rd7 Qc4 Bc3 b2 Nb3 b1N Nd2 b3 Ra1 Qa4 Nc4 b2 Bd4 Bh8 Ba7 Nc3 Bb8 b1N Qf3 Nd2 Qe4+ Nf4 e6 Bf3 e7 Nd5 Ne5 Nc7 Qa2 Bf6 Qed5 Nfe6 Rb1 Bg5 Rb6 Be3 Ra6 Ngf1 Ng3 Bf2 Nh1 Ne3 Rb6 Ng2 Rb4+ Ngf4 Rbd4 Nb3 Rd2 Nbc5 R4d3 Qb3 Qe4 Na4 Qd5 Nb2 Qe4 Qh8 e8N Qa4 Qed5 Na6 Nc7 Qe8 Nb5 Re7 Rd8 Rb7 Rd7 Nac7 Qd4 Be4 Qa7 Bf3 Qa8 Nd8 Rh7 Bf5 Rd7 Nde6
3K4/1Nr1b3/Q4B1N/1B1Qqp1r/1rRpQnPn/1Rr1R1nq/b3n2r/2k5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 e4 h5 g4 b5 c4 h3 a4 h4 c5 d3 e5 b3 c6 b2 c7 b4 e6 d2 e7 f3 Kd6 Kf4 a5 Ke3 a6 b3 a7 f2 Ra5 h2 Ra1 h3 Nc3 b1R Bb5 f1N Ba6 b2 Bb5 Qe8 Nge2 Nc6 Na4 Nd4 Qc2 Ne6 Ba6 Nf4 Qc4 Ng3 Nb6 Rh5 Rg1 h1Q Nd4 h2 Nc6 Bb7 Qa4 Rc8 Nd8 Bd5 a8Q Ba2 Bb5 Qf3 Rf1 h1R Qd5 R1h2 Nf7 Qg2 Qa5 Qh3 Nc4+ Ke2 Qa7 d1R Rf3 Rd3 Re3+ Kd1 Qa6 Kc2 Bd2 Rc3 Na5 Kd1 Be1+ Kc1 Nb7 Ng6 Rd3 Nf6 Nh6 Nh4 Bf2 Ng8 Bd4 Nf6 Qf7 Nd5 Bf6 Nf4 Re3 Be6 Ra3 Ba2 Ke5 d5 Kd6 d4 Qd5 Nhg6 Rb3 Nh4 Bc4 Qb5 Be2 Qc5+ Kd7 Qa5 e8Q Be7 Qdc6 Qe5 Bb5 Ra1 Qg8 b1N Qe4 Rb8 c8R Rc7+ Ke8 Nc3 Qf7 Nce2 Qfd5 Rc3 Kd7 Rb1 Rc7 Rc8 Rc4 Rc7+ Ke8 Ba3+ Kd8 Bd6 Ra3 Rb4 Rb3 Be7+
B1K1bb2/2br4/qr6/r3PRr1/bBQ1NQR1/4n3/2p1rpnR/2kq2NN w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 f5 a4 h5 e4 b5 g4 h3 g5 h4 g6 c3 d3 c2 a5 f3 g7 f4 a6 h2 a7 f2 Qe2 b3 d4+ Kb4 d5 c5 d6 h3 d7 b2 Ke6 Kb3 Ra2 b4 Ra1 c4 Nf3 c3 Ra4 Nf6 g8Q Na6 Qf7 Ng4 Qf5 Rh7 Nh4 f3 Qg5 Ne3 Qh5 Nc5+ Ke5 Ne6 Ra1 Nf4 Qd2 Nfg2 Rg1 h1B Ke6 h2 Nf5 Bb7 Qe2 Bc6 Ra5 Ba4 Bd2 c1B Qg4 Kc2 Ng3 b3 Rf5 Qa5 d8N Qa6+ Nc6 Rd7 Be1+ Bd2 e5 Kc1 Qg5 c2 Qc4 Ba5 Nc3 b1R Nce4 b2 Qf4 Bc7 Bb4 Ra1 Bd3+ f1Q Be2 f2 Bf3 Rc8 a8R b1R Rb8 Qd1 Rb6 Rcd8 Nd4 Rg7 Rd6 Rg5 Nde2+ Kb2 Rb6 Be8 Rc6 Rd7 Rb6 Ra5 Rd6 Nh4 Rc6 Bg2 Nh1 Bf1 Rg4 Nhg2 Ng1 Kc1 Qd4 Bb5 Qc4 Rd2 Rd6 Bbc6 Rd7 Re2 Rh7 Rb3 Nd6 Ba4 Ba8 Rd3 Rhh4 Qa7 Ne4 Rd7 Nhg3 h1R Rh7 Rhh5 Nh1 Rh3 Rh5 Rg3 Rh2 Qa6+ Nd6 Rdg7 Bc3 Rh3 Be1 Rhh7 Bb4 Bb6 Ne4 Rb7 Bc5 Bc7+ Bd6 Bg7 Ke7 Rb6 Bb4 Bd6+ Kd8 Bgf8 Bc6 Rhb7 Kc8 Rd7+ Bb7 Qb5 Bd5 Bc7 Ba8 Qa6+
3RKbR1/1n1BN3/b1b2n1r/1q2p1Q1/Q1pP2q1/1b1k4/1bq1N3/2Rq1rBB w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 a4 e5+ Kh5 b5 f4 c5 g4 e3 f5 c3 g5 h3 a5 e2 f6 e1Q d3 h2 g6 b3 g7 b4 a6 c2 a7 b2 f7 b3 Qf3 Na6 Qb7 Qd1+ Qf3 Qd7 Nh3 Nf6+ Kg5 h5 Kg6 h4 Qh5 Q7g4+ Qg5 c4 g8Q Nc5 Ng1 h3 Nc3 b1Q Nd5 b2 Ne7 Nb7 Be3+ Kc3 d4 c1B+ Bd3 Qbc2 Bf5 b1Q Qg7 Rb8 a8B Qb5 Ra5 Bb2 Ne2+ Kb4 Rf1 h1B Bg1 h2 Ra3 Rh4 Rg3 Bf3 Qh8 h1B Rg2 Bg7 f8R Rh6+ Kf7 Be4 Re8 Bf8 Rd8 Bc6 Rg3 Bhe4 Bd7 Bf3 Nc1 Kc3 Ne2+ Kd3 Re1 Qdd2 Rc1 Qdd1 Rg2 Na5 Qhg7 Ba6 Rg3 Nb7 Q7g6+ Ne4 Qd6 Nf6 Qa3+ Qbb3 Qb4 Ba4 Qa5 Qb5 Qb4 Bb3 Qa4 Nh7 Ke8 Rc8 Ra1 Rcc6 Rc1 Rcf6 Rg2 Bc6 Qf4 Qh4 Rg8 Qg4 Qg5 Rf1 Qh4 Bh1 Qa1 Nc5 Qa4 Bf3 Bd5 Nb7 Qg5 Be4 Bf7 Bc6 Bd5 Bc3 Bf3 Bb2 Bh1 Nf6+
Rr4Q1/r5B1/2B4K/p1kp1b1b/1bPN1bNn/2Q1q3/1N1n1qrb/1B1rR3 w - - 0 1 illegal: No possible last move, all moves rejected
1n1KrrQ1/k4BqN/b2N2rp/2bnpb2/1q1RR1rP/rQ6/3B3Q/4bN2 w - - 0 1 illegal: No possible last move, all moves rejected
1NQb1K2/1R1b3b/2R1bP2/2n2r1B/1Nq4k/rNB2p2/2rnp1Q1/1q1R1br1 w - - 0 1 illegal: No proof kernel
2N2k1b/Rbr1n3/N3p3/qb1qq1b1/Pq1b1N2/Bp4R1/nQ2K2Q/1B1B2r1 w - - 0 1 illegal: No possible last move
k1n1R3/4Qq1q/3p4/q1rN1bNR/bQb2b2/K1q2Bnp/2BN3P/3rB2b w - - 0 1 legal: proof: d4 e5 f4 exd4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Nd2 f5 Nb1 f4 e4 f5 g4 c5 a4 h5 g5 b5 a5 c2 Kd2 d3 Kc3 h4 Kb2 d6 e5 Kd7 g6 Kc7 g7 Kb7 e6 d2 e7 h3 e8N c4 Bd3 c3+ Ka3 b4+ Ka2 b3+ Ka3 f3 Qe2 d1B Qe6 f2 Nd2 f1Q Nc4 b2 Ne2 b1B Ra2 f4 Nb2 f3 Bc4 f2 Bb3 Nf6 g8Q Nc6 Nf4 Na7 Kb4 Nh5 Ra4 Ng3 Qg5 Rh5 Bd2 c1Q Nd5 c2 Qgg4 Bh6 Nef6 Bf4 a6+ Kb8 Ra2 Bb7 Ra5 Nc8 Ka3 Ka7 Rb5 Qa5+ Ba4 Qc4 Be1 f1B Ne4 Qcd2 Qh4 c1Q Qee7 Q1c2 Ng5 Qh7 Rg1 Qcc7 Nc4 Bf5 Rc5 Qf2 Nd2 Bc4 Rg2 Qd4 Re2 Qdg7 Re6 Qf7 Rb5 Rb8 Re5 Ka8 a7 Bc6 Rc5 Rb1 Rb5 Qab6 Bc2 Bf3 Rc5 Ba4 Re2 Bh1 Re4 Kb7 a8B+ Ka7 Rb5 Rd1 Re5 Qa5 Rb8 Nb6 Re8 Nc8 Bb7 Be3 Qd4+ Kb8 Qb2 Bf4 Qb4 Qcc5 Ne3 Ka7 Bf3+ Qcc7 Nd5 Ka8 Bfe4 Qcc5 Bg2 Qd4 Bf3 Qc3+ Bb3 Ne2 Nge4 Bfd7 Ndf6 Qd4 Bc2 Ng3 Rf5 Rg5 Rc5 Rg4 Rh5 Rg5 Bd3 Bde6 Bc2 Rc5 Nd5 Bf5 Ng5 Qc3+
2K1R3/2bBB3/1brp3P/qQ5Q/2p1n2n/n1k2b1b/nN1Nq2Q/R2rn2N w - - 0 1 illegal: No proof kernel
q1r1nq1N/2b1Nq2/1NP1Q1bR/5B2/pKn3n1/3r2p1/3q1k1B/R1qQn2R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 b4 Kf6 c4 Kg5 e4 Kh4 h3 Kg3 c5 f5 b5 g5 h4 d5 c6 a5 b6 f3 h5 a3 h6 f2 h7 d3 Kc3 d4+ Kc4 a2 b7 a4 e5 f4 e6 f3 e7 d2 e8R d3 Be2 f1Q Kb5 f2 Nh3 Nd7 b8N Bd6 Rf8 Bc7 Na6 Ndf6 Bb2 Nh6 Nf4 Bf5 Rg8 Ne8 Bf3 Rc8 Ne6 Bg6 Qe2 d1Q Nb4 d2 Nd3 Qc1 Ng7 d1Q Qe1 Qdd2 Nc3 Qf6 Be2 Qf7 Qd1 Kg2 Nf5 g3 Rf8 g4 Kb4 Rd8 Ne5 Rd3 Ne7 Rg8 Rb1 a1N h8Q Nb3 Ba3 Na5 Qf6 Nc4 Qe6 Qg1 Ra1 f1Q Bf3+ Kf2 Be4 g2 Bf5 Qh2 Bb2 g1N Ba3 Rh8 Rg8 Qf8 Nf7 Nf3 Rg7 Rg8 Rh7 Ne1 Nh8 Qg3 Bb2 Qge3 Ba3 Qa7 Bb2 Qa8 Ba3 Qg5 Nd5 g3 Nb6 Ng4 R7h6 Qgf4 Bb2 Qe2 Bd4+ Qee3 Be4 Q4f7 Bf5 Kg2 Bc5 Qg5 Bg1 Qgd2+ Kc5 Kf1 Bh2+ Kf2 Rb1 Q8g7 Be4 Ned6 Bf5 Rc8 Ra1 Ne8 Kb5 Qgf8 Kc5 Qg5 Kb4 Qgd2+
1r1R1R2/2n3QP/1qNn2pr/Q1K1NB1B/N1n3bB/5n1k/3bpnb1/2q3b1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 e5 h4 d5 a5 b5 a6 d3+ Ke3 d2 c5 b3 h5 g3 c6 d4+ Ke2 Kg4 f5 e3 Kd3+ e2 c7 g2 a7 b4 Kc4 e4 h6 e3 f6 b2 f7 d3 Nf3 e1N Nh2+ Kh3 Qe2 d1Q Qf2 e2 Nd2 b1B Ndf3 b3 Ne5 d2 Nc6 g6 Qc5 b2 Qa5 Ne7 Kc5 Bg4 c8N Be4 Nb6 b1N Na4 Na3 Rb1 Bg7 f8Q Bc3 Qg7 Nc4 Ba3 Qc2 Rd1 Nf5 Rg1 Nfd6 Nf3 Qc1 Nfe5 Nf3 Bb2 Rf8 h7 Rf5 Ba3 Rh5 Bb2 Rh6 Rh1+ Kg3 Rh2 g1B+ Rf2 Qc7 Bh3 Bd5 Rf1 d1N Re1 Nd4 Rf8 Nf2 Rd1 Nf3 Ba1 Bd2 Bb2 Bh5 Bf5 Bg4 Bd4 Kg2 Be3 Kh3 Bg5 Nf7 Bh4 Na6+ Kb5 Re8 a8B Qd8 Bb7 Nc7+ Kc5 Nfd6 Bbc8 Nd4 Bce6 Bg2 Bd5 Qf6 Bf3 Rb8 Bc8 Bf5 Bh5 Bg4 Bd7 Nf3 Bf5 Bf4 Rd3 Bd2 Rd4 Nc8 Rdd8 N8d6 Nd3 Qfb2 Nde5 Qb6+
3n1rb1/N2Qn1PN/B4nn1/KR3Qp1/3b3B/2q1Bq2/3r1pRr/1r3krN w - - 0 1 illegal: No proof kernel
K1BR1Q2/2NpBn1k/6r1/1N1n4/1B1Pqb1N/rr5r/q1n1bp2/r1nQR3 w - - 0 1 illegal: No possible last move
R1rrBRq1/2P1q3/KN1Q3q/2n1Qr1q/2pB1Npk/5n1b/2qb4/2Rr1N2 w - - 0 1 illegal: No proof kernel
B1R2b2/2p1qQ2/1b3n1N/1QQP2pK/rb2N2R/5n1r/3Bb1bR/1knq3n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 Kd4 d3 b5 e5 f5 a5 g5 a6 b3 a7 c3 h5 b2 e6 f3 Kg3 c2 h6 b4 e7 f2 e8Q b3 h7 f4+ Kg2 g3 Kf3 g2 Nd2 Kc3 d4 b1N d5 b2 Qee2 Bh3 Nc4 Nd7 Qe7 Ne5+ Ke4 f3 Rh2 Nd3 Qf7 Qe7+ Ne5 Nd2+ Ke3 b1Q Ne2+ Kb3 Nc3 g1B Ra4 Nf6 Ne4 Bg2 Qe2 Qa1 Rb4+ Ka2 Ng4 Qb1 Nh6 Qb3 Rb8 Kb1 Rc8 Qa4 Bb2 c1B Bc3 Ba3 Rh4 Nc1 Qb5+ Qb3 Qc5 Bb4 Ba6 Qd1 Bb7 Bh2 Qb5 f1B Kf2 Bg1+ Kg3 f2 Rh2 Rg8 h8R Nf3 Bd2 Be2 Rh7 Rh8 Rh4 Nh5+ Kg4 f1N Bc6 Bb6 Qc5 Rb8 a8Q Nfg3 Qa6 Nh1 Qab5 Ra8 Rh2 Ra6 Ba8 Ra4 Nf5 Ng7 R7h4 Rh5 Nh6 Ne8 Kf5 Nf6 Kg6 Kb2 Rg4 Rh3 Rh4 Ng8 Kh5 Ka2 Qf6 Kb1 Qf7 Nf6+
r2Q2bb/1p1Nb2n/4k1n1/4bRB1/Rrp3b1/1Nrr2q1/QRQ4P/1q1B1K2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 d4 Kd7 e4 f5 a4 c5 e5 g5 a5 b3 d5 g3 a6 b2 d6 g2 a7 g4 Bd2 g3 Be3 c3 Bb5+ Nc6 Ra2 c2 Ra6 c1R Bf1 f3 Be2 f2+ Kd2 f1R Bg4 Qg5 Ke2 Rc3 Bc1 Rf4 Nh3 g1B Qb3 g2 Rb6 Rb4 Qa2 Bd4 Ng1 Be7 Ke1 Rhh3 Bd1 f4 Nd2 b1Q Ngf3 g1B Nb3 Qg3+ Kf1 Ke6 d7 Nf6 d8Q Nh7 Qc2 c4 Ra6 Rd3 Ra4 Bc3 Bd2 Bgd4 Rg1 Bd7 Rg2 Be8 Bc1 Bf7 Rd2 Bg8 Rf2 Kf5 e6 Bh8 Ne5 f3 Nd7 Ne5 Bg5 Ng6 Rd2 f2 Re2 Bd6 e7 Bce5 e8R Be7 Rf8+ Ke6 Rf5 Qh4 Kg2 f1B+ Kg1 Bg2 Ref2 Bd5 Kf1 Bf3 Rg2 Qg3 Rd2 Rb8 a8Q Bg4 Qa7 Ra8 Qf2 B7f6 Qa2 Rc3 Rb2 Be7 Qc2 Qf4+ Kg1 Rhd3 Kg2 Qe3 Kf1 Qg3
R5Rq/Bpbq3Q/R5rb/1nb1Q1pK/3r3N/2Pn2N1/b1r1b1B1/3rk1N1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 f4 Kd5 a4 Kc4 c3 d5 f5 e5 h5 g5 f6 b3 h6 g3 a5 g2 h7 b2 a6 e3 Kf3+ e2 f7 d3 a7 e1B Ra5 e4+ Ke3 Nh6 Ra3 Rg8 h8N Qd7 Rh5 Na6 Ne2 d2 Rh4 Nb4 Rg4 Nd3 Rg3 Rg6 Nd4 g1B+ Ke2 e3 Kf3 e2 Nb3 d4 Bg2 Nf5 Kg4 Bh6 f8R Nd6+ Kh5 Nb5 Re3 Bg3 Rg8 e1Q Qe2 d1R Ra6 Bc7 Ree8 Qf1 Qe7 Qf6 Be3 Rc1 Bf2 Rc2 Nc5 Rb8 a8Q Qe5 Nf7 Qh8 Ne4 Kb3 Ng3 Kc4 Ne5+ Kb3 Na3 b1B Be3 Ba2 Nb1 Kb2 Nd2 Kc1 Ref8 Kd1 Qh7 Ke1 Qa7 Ra8 Qb8 Ra7 Rb6 Ra4 Ra6 Nb4 Rd8 d3 Ba7 Bc5 Nef3+ Kf2 Nb3 d2 Nbd4 d1R Ndf5 Nd3 N5h4 Rd4 Ng1 Ke1 Rde8+ Qe7 Ref8 Bce6 Qe8 Qd7 Qee7 Bc4 Ra8 Ba2 Qeg7 Bec4 Qf6 Nb2 Qfg7 Bf1 Qf6 Nd3 Qe5+ Be2+
4nB2/1n1QK1bb/1b6/R1Qr1rq1/1qb3N1/Npn1Rq2/B1Pk2p1/1R3B1n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 a4 Kf5 h5 Ke4 e3 d5 a5 f5 h6 g5 h7 b5 a6 g3+ Kg2 b3 Kh3 g4+ Kg2 b2 a7 d3 Ra4+ d4 Qd2 b4 Ra3 Nf6 Rh6 f3+ Kh1 g2+ Kh2 f4 Ra2 f2 Qe1 d2 Bc4 d1N Bf1 f3 Kg3 d3 Kh4 d2 Kg5 g3 Ra1 Bf5 Ra2 Nc3 Ra3 d1Q Bd2 Na6 Rh1 Bg7 Ra5 Rf8 h8Q Nc5 Qh7 Nb7 Nh3 g1B Na3 b1Q Qe2 g2 Qb5 Qd5 Qc5 Rad8 a8B Ne8 Bc1 Qe5 Bb2 Rd5 Ba1 Bh8 Qd7 Bg7 Bb2 Nd8 Bc6 Nb7 Ba4 Rf6 Bb3 Qe7 Ba2 Bh7+ Kh4 Rff5+ Kg4 Ke5 e4 b3 Ba1 Qbc1 Bb2 Qh6 Bc1 Qf8 Bg5 Qfd6 Be7 Qb6 Bf8 Qb4 Bb5 f1N Nf2 Ng3 Bf1 Qhc1 Kh4 Kf4 e5 Qcd2 Ng4 f2 e6 Qf3 e7 Qc1 Be2 f1B Bb5 Nf6 e8R Bc4 Re3 Bf2 Ba6 Qd2 Rb1 Ne8 Ree1 Bfd4 Re3 Nh1 Qce7 Bb6 Qc5 Be2 Bc4 Bd1 Bf1 Be2 Nh6 Ba6 Ng4 Bc4 Re6 Rf6 Re5 Bg8 Kh5 Rf5+ Kg6 Qc1 Nf6 Bh7+ Kf7 Qe1 Re2 Qh4 Ke7 Qg5 Ree1 Kg3 Re3 Kf2 Bd3 Qd1 Be2 Ke1 Bd3+ Kd2 Bf1 Qh6 Ng4 Qf3 Qc6 Qg6 Qd7 Qg5+
nq6/3N1rR1/1q1Q1nb1/k2N1R1n/7B/p3qnpN/PKQ2Q2/Bb1bb2r w - - 0 1 illegal: No possible last move, all moves rejected
7r/1q1b2qq/1k3r1r/1q2R3/nb2b1P1/KNRprR1Q/1pBn1B1N/3Q1N2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 c4 f5 Kc2 h5 Kb2 d5 a4 Kd7 e4 Kc6 g4 d3 c5 f3 e5 d2 e6 h3 e7 f4 e8R h4 a5 h2 a6 f2 a7 h3 Qe2 d1Q Ra5 d4 Re3 f3 Rd3 b3 Bg2 f1Q Nd2 b4 Qf2 Nd7 Ra4 Qg5 Qe1 Qg7 Ra1 Ngf6 Qf2 Nb6 Ra3 Na4+ Ka1 b2+ Ka2 Bd7 Nb3 Qc2 Qe3 Ne4 Rc3 f2 Nf3 Qb5 Re1 h1R Nh2 Re8 a8N f1R Nc7 Rf6 Nd5 Nd2 Be4 Bd6 Qe2 Bc7 Qd1 Ba5 Ne3+ Kc7 c6 Kb6 c7 b1B+ Ka1 Rhh6 c8Q Reh8 Re2 Re1 Nef1 Qcd3 Bb2 Qf3 Bg6 Qb7 Re5 Be4 Ka2 Re3 Qg8 Rd6 Qh7 Rf6 Nf3 h2 Bc1 h1Q N3h2 Bec6 Bc2 Bd5 Qd3 Qe4 Bb2 Qeh7 Bc1 Be4 Bb2 Re1 Qh3 Re2 Rf3 d3 Ba1 Re3 Bc3 Nb1 Be1 Nd2 Bf2 Q5c6 Nd4 Qb5 Rc3 b3+ Ka3 b2 Nb3 Bb4+
1nBb1b1q/2r1B1QN/2rn4/3KQ1Rb/RR1n2p1/1Q2rN2/1p1bPq2/1k2n3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 d4 Kf6 a4 b5 h4 g5 h5 c5 h6 g3+ Kf3 g2 Ke4 b3 a5 f3 a6 c3 h7 b2 d5 c2 a7 f2 d6 b4 d7 b3 Rh5 c4 Be3 c1R Qd3 c3 Rh2 c2 Qd2 Nh6 Ra4 Nf5 Rh3 Nd4 Nc3 b1N Qd1 b2 Rh1 Nd2+ Kd5 N2f3 Ra1 Ne1 Nf3 g1B Bg2 f1Q Bh3 Qf2 Nh4 g4 Kc4 Ke5 Na2 f5 Nb4 f4 Qd3 f3 Qb3 Qe8 d8R Bf5 Rc8 Bg6 Bg5 Bh5 Bg2 Rg8 h8Q+ Rg7 Ra5+ Ke4 Rac5 Rc7 Nd5 Qe5 Qg8 Qh8 Be7 Bh2 Qg5 Be5 Qg8 Bf6 Qg7 Bg5 Nf6+ Kf4 Qb4 Ke3 Qb3+ Kd2 Kd5 Rc6 Nh7 Bf6 Bd6 Bd8 Be7 Kd1 Ra5 Rc7 Ra4 Kd2 Qb6 Kc3 Qd6 Kb3 Rb4+ Ka2 Qde5 Kb1 Rg1 Rd1 Rh1 c1B Rh2 Rd3 Bh1 Rb7 Rcc4 Re3 Ra4 Rc7 Rcb4 Bd2 Rh3 Qg3 Bg2 f2 Nf3 f1N Rh4 Bg6 Rh5 Qf2 Rg5 Ng3 Bh1 Bh5 Bg2 Na6 Bh1 Rac8 a8Q Nb8 Qb7 Ngf5 Qb5 Qg1 Qc4 Rc6 Qb3 Qf2 Nh4 Rc2 Be4 Rc7 Nf3 Nd6 Bf5 Bc1 Bd7 R2c6 Bc8 Bd2
4b1Nb/rq1n2R1/1n4Q1/1r5B/kr1q1np1/1R1R1Pp1/3qnq2/2N1QBBK w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 d5 h4 Kd7 c4 Kc6 c5 g5 h5 e5 a5 b5 f3 g3 a6 b3 a7 b2 h6 d3 h7 g4 Rh2 e3 Rc2 d2+ Ke2 e4 Na3 b1Q Rc4 b4 Nb5 d4 Qe1 d1N Nc3 b3 Bg2 d3+ Kf1 b2 Ra2 d2 Raa4 Ne7 Ra1 Bg7 Ra5 Bd7 Nd5 Be8 Ne2 Nc3 Kg1 d1Q Nf6 Nc8 Rb5 Q8d2 Ng8 Nb6 Kh1 N8d7 Rd4 Qa4 Rd3 Qd4 Bf1 Rb8 Nf4 e2 a8R e3 Rb3 Rb7 Rb8 Ra7 Rb7 Be5 Qd1 e1N Ne2 Ng2 Qe1 Nf4 Rc7+ Kd5 c6 Kc4 Rb7 Bg7 c7 Bf6 c8B Kc5 Ra3 Kb4 Rb3+ Ka4 Rc7 Be5 Ba6 Bg7 Bc4 Bf6 Bf7 Be5 Ng1 e2 Bh5 Bf6 Re3 Qbe4 Rd3 b1R Ba3 Qb7 Bc5 Ne5 Rg7 Ned7 Qd1 e1Q Ne2 Rb2 Nc1 Qef2 Qe1 Rb1 Ne7 Rf8 h8Q Nce2 Qg8 Be5 Qe6 Rf5 Qg6 Rb2 Ng8 Bf6 Rbc3 Rb4 Rb3 Be5 Re7 Bh8 Rg7 Q4b2 Be3 Rfb5 Bd4 Qfe3 Bc5 Qee5 Bg1 Qed4 Qh6 Qf2 Qg6 Qbd4
nb3Br1/1r2qB1K/1R1q2QN/1R1Nqbb1/1Qp2n2/rprB3P/1b4Q1/k7 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kd6 e4 f5 a4 c5 e5+ Kd5 a5 b5 e6 g5 e7 g3+ Kf3 g4+ Ke2 f3+ Ke3 f4+ Kd2 f2 e8B c3+ Kd3 b3 h3 f3 a6 g2 a7 b4 Qc2 b2 Ra3 g3 Bh5 c4+ Ke3 Na6 Kf4 Nc7 Qe2 c2 Bg4 Bd6+ Ke3 Nf6 Ra4 Nh5 Qd3 Rg8 Rh2 Bf5 Ne2 g1R Ra6 g2 Rb6 Nf4 Ng3 Rh1 Be2 f1Q Bh5 g1B+ Rf2 Qd1 Bf7+ Nfe6 Qb3 Qe7 Bd3 Be5 Bd2 c1B Qc3 b3 Qb4 Bh2 Rf1 Rab8 a8Q+ Rb7 Rg1 f2 Qa6 Bg4 Nf5 f1R Nh6 Bf5 Rg5 Na8 Rh5 Rf2 Rg5 Re2+ Kf3 Bh8 Bf4 Qe1 Bd6 Rc2 Rh5 Qe5 Bc5 Qd8 Bf8 Rc3 Qa2 Bg5 Qa6 Be4+ Kg4 Qe7 Qa2 Bgf4+ Rg5 Bf5+ Kh5 Rhc1 Na3 b1Q Nb5 Qa1 Qb2 Qa3 Qg2+ Be4 Rf5 Ra1 Rg5 Bhg3 Rf5 Bg7 Kg6 Bg5 Kh7 Qa6 Qh2 B3f4 Qg2 Ra3 Qa2 Rc1 Qb1 Bg3 Na7 B3f4 Rb5+ Qc5 Bf1 Qc6 Kg6 Qc7 Nc8 Qe7 Kh7 Bd3 Kg6 Ke4 d5 Qa1 Rf6 Be5 d6 Nf4+ Kh7 Kd4+ Rg6 Bh8 d7 Bb8 d8Q+ Qd5 Nb6 Qdd7 Qc5+ Kc3 Qc6 Rc2 Qg2 Bd4 Qe1+ Kb2 Qb4 Be4 Bd3 Bf5 Nd5 Qae1 Qe2 Ka1 Qg2 Bb2 Qb6 Rc3 Qf6 Q1e5 Qg7 Bg4 Rgb6 Qdd6 Qg6 Bf5
1QqRN3/2bnQ1Nk/2b2n1q/1r1RBP2/p1B4q/3QN2n/3Kqbp1/rb6 w - - 0 1 legal: proof: e4 c5 d4 cxd4 g4 b5 a4 bxa4 e5 h5 e6 hxg4 Qd3 fxe6 Qf3 e5 Qd1 e4 c4 Kf7 h4 Kg6 f4 d5 b4 e5 f5+ Kh7 b5 a5 c5 g5 c6 g3 b6 g2 h5 a3 h6 d3 c7 d2+ Ke2 d4 b7 d3+ Ke3 g4 Qf3 d1Q Bb2 d2 Bc4 a2 Be6 g3 Bf7 Nd7 b8Q Bb7 c8Q Bd6 Ba3 Bc6 Qe2 Ngf6 Rh2 Bc7 Qcb7 Qc8 Nf3 g1N Bb3 g2 Nc3 Nh3 Nd5 a4 Qd3 Ra5 Bf8 Rb5 Bg7 Qh1 Rf1 a1Q Bc4 d1B Nd4 Bc2 Kd2 Bb1 Ne6 Qd4 Rd1 Re8 Bh8 Re7 Ng7 e3+ Kc1 e2 Kd2 Qh4 Ne3 e4 Q7a7 Ree5 Qc5 Qf1 Qe7 Qff4 Rhh1 Rb3 Rhf1 Reb5 Rf3 Ra3 Rg3 Nd5 Rg6 Ra1 Rd6 N5b6 Rd5 e1B+ Kc1 Bf2 Kd2 Qfg5 Nh5+ Kg8 Be5 Nf6 Ng7 Qgh5 Qb4 Nbd7 h7+ Kf7 h8N+ Kg8 Qe7 Kh7 Nf7 Qh6 Kc3 Bg1 Nd6 Bf2 Ng4 e3 Nde8 e2 Ne3 e1Q+ Rd2 Qe2 Rd1 Qf3 Kd2 Qfe4 Qe2 Qd3+ Kc1 Ra5 Rd6 Nb6 Rd8 Nbd7 Rd2 Qb3 Rd5 Rb5 Qd3 Qa2 Kd1 Qe2+ Kc1 Qeh5 Kd2 Qe2+
QN1Kn3/rR1R2bq/2Q1B3/k3P1Nb/2q2NqR/p1rr1npr/3n3B/3n4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 d5+ Kb5 Kd7 e4 Kc7 b4 a5 h4 g3 c4 f3 c5 g4 e5 d3 h5 f4 c6 d2 h6 d4 h7 d3 Be2 a3 Nc3 g2 Rh3 f2 Rh4 f1N Bf3 a4 Rh3 a2 Be2 a3 Bf3 Qd7 Na4 Ra7 Nb2 Bg7 Rh4 Nf6 Qc2 d1N Nh3 g1Q Rb1 a1R Ng5 d2 Bd5 f3 Be6 f2 Nd3 Ne8 Nf4 Ba6+ Kc5 Be2 b5 Qf7 Kd5 Kb6 c7 Nc6 c8R Nd4 Rd8 Ka5 b6 Nf3 Kc6 Ra2 Qc4 Rc2 b7 Rc3 b8N Qh5 Rd4 g3 Rd7 Qg4 Rbb7 Qh2 Bb2 Bd3 Bc1 Bg6 Bb2 Bh5 Bc1 Nd6 Kc7 Ne8+ Kd8 Nfe3 Bb2 f1Q Qe4 Qc4 Qc6 Nf1 Ba1 Nf2 Bb2 d1R Bc1 Qhh3 Be3 Rdd3 Bd4 Nd1 Bg1 N1d2 Bh2 Rg8 h8Q Rf8 Qh7 Rh8 Qhe4 Qf5 Rb6 Qh7 Qa8 Q3f5 Rb7 Qg4 Qc6 Qhe4 Nf7 Bg6 Ng5 Qef5 Rh6 Bf7 Rf6 Rh3 Rh6 Qh7 Rh4 Bh5
2nkqNn1/4N3/2b1r2r/R2np3/Q3B3/bKBB2q1/1bPQpR2/q3b1Qn w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e5 h4 d5 f4 g5 a4 b5 h5 e3+ Kd3 g3 f5 e2 f6 b3 a5 g4 h6 b4 a6 g2 a7 b2 h7 g3 Ra2 b3 Kd2 d3 Kc3 d4+ Kc4 d2 Ra3 d3 Qe1 d1N Rh3 d2 Rh1 Nd7 Ra6 Bb7 Rh3 Ba3 Rh2 Nc3 Nf3 d1N Nd4 g1B Ne6 g2 Ra5 Bf2 Bd2 g1B Bh3 Qb8 Qf1 Be1 Bf5 Bd4 Qg1 Nf2 Rg2 Nh1 Rf2 Be4 f7+ Ke7 Nd8 Bf3 Ne6 Qe8 Bg6 Bac5 Bf5 Rb8 a8B Rb6 Bb7 Rd6 Ba6 Bc6 Bg6 Ba3 Bf5 Ndf6 f8Q+ Kd7 Qfg7+ Ne7 Q7g4 Nfg8 Nf8+ Kd8 Bg6 Nc8 Qe4 Nd5 Nc3 Ndf6 Nd5 b1Q Ne7 b2 Qeg4 Qc1 Kb3 Nd5 Bf5 Bc3 Qa4 Re6 Bc4 Bd4 Bb4 Qh6 Bcd3 Qf4 Bfe4 Qg3 Bd2 Be3 Bc3 b1Q+ Bb2 Qa1 Bc3 Ngf6 Nf5 Bec1 Ne7 Rg8 h8Q Bcb2 Qh7 Rg6 Qh6 Ng8 Qd2 Rh6
1b3q1B/1b1bK3/5r2/NQn1p1Q1/1q3R1q/2rB3R/kp1PRNqn/3nB1n1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 h5 g4 e5+ Kg6 c5 Kf7 b5 f4 e3 a4 e2 f5 e1Q g5 b3 g6 b4 f6 h3 g7 b2 a5 h2 a6 c3 a7 c4 Na3 b1N Bd3 h4 Qg4 c2 Qh3 c3 Nb5 b3 Bg6 Kc4 Qd7 h3 Qb7 Rh6 Ne2 Nd7 Qb6 Nc5 Ra5 Qh4 Ba3 c1N Qb7 b2 Ra4+ Kb3 Nd6+ Ka2 Re1 h1Q Nf4 c2 Re2 h2 Nc4 Nc3 Nd3 Bd7 Qb5 Nd1 Nf2 Qg2 Bd3 h1B Na5 Rc8 a8R Bd6 Rf4 Bb8 Bb4 Rg6 Bc3 Qb6 Bd4 Nh6+ Ke7 Ng4 Ra6 Nh2 g8Q+ Ne6 Qg7 Rc3 Qh6 Nc5 Qg5 Qbb7 f7 Rf6 f8B Qbf3 Bg7 Qfg4 Re1 Ne2 Bh8 Ng1 Re2 c1Q Rc6 Qc2 Rc8 Qb3 Rc7 Qg8 Rc6 Rf8 Rh6 Rf6 Be3 Qhg3 Rh3 Q3h4 Rff3 Qe4 Bf4 Qb4 Bg3 Qf1 Rf4 Bb7 Nh1 Qg2 Be1 Qc8 Nf2 Qf8#
1N2R2Q/Bnq5/1Kn1Q1B1/nb2p3/rbr1Q1b1/2Pq1B2/1pb2k1q/2N2nR1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 a4 Kd5 g4 b5 c3 h5 f5 e5 f6 e3 Kd3 h3 a5 e2 f7 e1N+ Kd2 Ke4 a6 d5 g5 h4 a7 d3 g6 b3 g7 b2 Na3 b1Q Ne2 Kf3 Nc4 d4 Ra5 b4 Ng1+ Kf2 Be2 h2 Nd6 h3 Ra2 b3 Bf3 b2 Qc2 Ne7 g8B Nbc6 Nf5 Bd7 Bg2 Na5 Bf3 Nec6 Qb3 Rh4 Bh7 Bb4 f8Q Qc7 Qh8 Rf4 Kd1 d2 Bg6 Nd3 Ne2 Nc5 Rg1 h1Q Ne7 h2 Qe6 Qd3 Ra3 Rc8 a8Q Ncb7 Ra1 Qg2 Ra2 h1N Ra4 Qb5 Kc2 d1B+ Kd2 Qd5 Kd3 Ng3 Ra1 Nf1 Be3+ Ke1 Nc1 Qh2 Bg2 Bh5 Bf3 Rh4 Ra2 Bg4 Ra3 Qc4+ Ke4 Qa6 Kd5 d3 Ba7 d2 Ra1 d1B Ra4 Nd4 Nc6 Bc2 Nb8 Bb5 Ra3 Ndc6 Ra4 Bc5 Rf4 Kf2 Rf8 Bh5 Re8 Ra4 Bge4 Bg4 Bg6 Nd4 Nc6 Bb4 Nb8 Nd6 Qc6 Ndb7 Qc4 Qcb6 Qd3 Rc4 Qdf5 Ndc6 Qe4 Nc5 Kd6 Ncb7+ Kd7 Qd4+ Kc7 Qab6+ Kc8 Qbc5 Kc7 Qd3 Q4d5 Nd4+ Qdc6 Qd6+ Kb6 Qe7 Qcd5 Ndc6 Qe4 Qc7+
n2b2R1/3bK2R/kB5r/1b2pq1Q/qp1N3P/1B2brQ1/rNr4R/N2n2q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 c4 Kd7 a4 Kc7 f4 Kb6 f5 g5 a5+ Ka6 f6 b5 c5 b3 c6 g3 f7 g2 c7 g4 Qd3 b2 Qh3 b4 Nf3 g1Q Ra3 e3 Kd3 e2 Qg3 e1R Bd2 Qf6 Nh2 Nh6 Be2 Nf5 Qf3 g3 Nf1 g2 Bc3 Bd7 c8R Ne3 Qh5 Rc1 Nfd2 Bd6 f8N Rh6 Nc4 Rc2 Bd1 Bc7 Nbd2 b1R Ne6 Rb3 Rh2 Ra7 Rg8 Qf5+ Ke2 Bb5 Ba1 Rd3 Nb2 Nd7 Rc3 Nb6 Rc4 Qg5 Kf3 Na8 Nb3 Qf5+ Kg3 Rdc3 Rc5 d3 Ned4 d2 Rc4 Bd8 Rc7 Rd3 Rh7 Bc7 Be2 d1B Bf1 Rdc3 Bc4 Qd3 Kh3 Bg4+ Kg3 Bd7 Kf3 Nf5+ Kg4 Ne3+ Kg5 Qe4 Ne6 Nd1 Ned4 Kb7 a6+ Kb6 Ne6 d4 Bd5 d3 Ned4 d2 Bc4 Rb7 a7 Rf3 Bf7 Ka6 Bd5 Nb6 a8Q+ Ra7 Qf8 Na8 Qf4 Qf1 Qg3 g1B Bc4 Bf2 Bf7 Qg1 Bc4 Rd6 Be6 Qf4+ Kg6 Be3 Kg7 Qf5 Bf7 Nb6 Kf8 Na8 Ke7 Rh6 Na4 Rc1 Rf2 Kb7 Rh2 Nc3 Nc6 d1Q Bb2 Qdc2 Na1 Nd1 Bd4 Qa2 Bb6 Rc2 Nb2 Ra5 Na4 Ka6 Nb2 Qb3 Bc4 Ra2 Nd4 Qa4 Bb3 Bd8+
br1b1Q1N/3q4/r1r2rq1/nN2pk2/P1b1n3/p5Q1/2qBB3/qBQ1K1RR w - - 0 1 illegal: No proof kernel
1RQ1qb1B/3r2QB/b1N1k2n/q2npqRp/b3R2q/3PK3/1NQ2nb1/r7 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 f4 e5 g4 b5 a4 c5 f5 h5 f6 b3 a5 b2 a6 h3 g5 e3 a7 b4 g6+ Ke6 g7 c3 f7 c4 Qb3 c2 Ra6+ Nc6 Ra3 h2 Nf3 Qh4 Ra4 Ba6 Na3 b1B Ra5 Nce7 Qb2 c3+ Nc4 b3 Ra3 Nd5 Ra4 Nh6 g8Q Rh7 Rg1 h1B Rg5 Bg2 Qg7 Ba2 Qb1 b2 Kd3 e2 Nd4+ Kd7 Nc6 e1Q Be2 Bb3 Bf3 Ke6 Be4 Bb5 Qa2 b1Q Ba3 c1Q+ Qc2 Qcd1 Be7 Ba6 Bf6 Qdg4 Rb4 Ba4 Rb8 Qb5 Bg6 Ba3 f8Q Qa1 Be4 Qf5 Ke2 Qa2 Bd3 Be7 Nb2 Qa5 Qd8 Bf8 Rb4 Qa3 Re4 Qe7 Qb8 Qe8 Qbb7 Rd8 a8R Rd7 Qc8 Rh8 Rb8 Rg8 Qb1 c2 Qd1 Nc3+ Ke3 c1N Bb1 Nd3 Qc2 Nf2 Qe7+ Kd5 Bh8 Rg7 Qf6 Ra7 Qg6 Rgd7 Qg7 Ra8 Ba2+ Kd6 Bg8 Raa7 Bh7 Ke6 d3 Nd5+ Ke2 Rb7 Nd1 Rb1 Nb2 Nc3+ Kd2 Ra1 Ke3 Nd5+
nq3kbr/B1RK3b/bN5q/1B1pQ3/1qQb4/r1p1Rn2/1BN2nP1/1R5q w - - 0 1 illegal: No proof kernel
3Br1Nr/2NBQ3/1RNnb2q/R1rpKn2/r2Pn3/nQ1p4/b4qR1/4k1b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 c4 Qd3 cxd3 Bf4 exf6 Bd2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Kd5 e4+ Kc4 a4 h5 g4 b5 c3 d5 a5 h3 e5 h2 a6 b3 e6 h4 g5 b4 g6 b2 a7 h3 g7 b3 e7 Nf6 g8R Be6 e8Q Bd6 Ra2 Qb6 Qc8+ Nc6 Qc7 Re8 a8Q Ne4 Qf7 Na5 Ra1 Nb7 Rg4 Be5 Qf8 Nbd6 Ne2 Qc6 Rhg1 h1R Qa3 h2 R1g2 Rg1 Rg8 h1N R8g6 Nhg3 Qe7 Rgh1 Ng1 R1h7 Qd8 Ra7 Qe7 Ra4 Qa2 Kb5 c4+ Kb4 Na3 Kc3 c5 b1N Be2 b2 Nb5+ Kc2 Bd2 Na3 Ba5 Qa6 Bb6 Kd2 Qb3 b1B c6 Ba2 Bd8 Qb6 Bd1+ Ke1 c7 Qa6 c8N Qb6 Rc2 Qc6 Rh6 Qb6 Nc7 Qc6 Kg2 f3+ Kh2 f4 Rg2 f2 Bg4+ Qc1 Bh3 f1R Rg6 Rf2 Nf3+ Kf1 Rh6 Rc2 Bf5 Rc5 Kh3 Bf7 Bd7 Ngf5 Kg4 Be6 Rg6 Bf6 Ne5 f3 Nc6 f2 Kf3 Bh4 Rh6 Ke1 Rf6 Kd2 Kf4 Ke1+ Ke5 f1Q Qb1 Bf2 Nb4 Bc4 Rg3 Bg1 Rg7 Ra8 Rg5 Nab5 Qf7 Nb7 Ne7 Qf2 Ng8 Ra5 Ra4 Ba2 Qe7 Bf7 Rg2 Na3 Qb3 Qh6 Rb6 Be6 Nc6 Nbd6 Rb7 Rc4 Rb6 Rac5 Ra5 Ra4
b1bK3B/2bQ2n1/1R4n1/2Pn3k/1r1Qn1q1/BNN2prb/4q1Rp/2r1Q2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 a5 e4 f5 g4 Kf7 b4 Kg6 c5 f3 e5 f4 e6 a3 g5 a2 e7 a4 b5 a3 b6 f2 b7 h3 Bg2 f1B+ Qe2 h2 Bd2 h4 Bb4 h3 Bd2 Nc6 b8B Nh6 Bf3 Ra4 Be5 Nf5 Bc7 Rb4 Bc3 Rg8 Bb2 Ne5+ Kd2 d3 Kc3 d2 Qb5 d1N+ Kc2 d4 Qd7 Nf2 Ne2 d3+ Kc3 d2 Nd4 d1Q Rg1 h1B Nb3 h2 Rg2 Qe2 Bb8 Ng7 e8Q+ Nf7 Be5 Bd6 Be4+ Kh5 g6 Bc7 Qd4 Qh4 Qed7 Nh8 Bb7 Nf5 g7 Qhg4 Be4 Ng6 Bc1 Rd8 g8Q Ng7 Qge6 Rg8 Qee7 Ne8 Bh8 Ng7 Rg1 Bh3 Rg2 Qf1 Bc6 Qb5 Qe1 Qbe2 Qc4 Ne4+ Kd4 Ne6+ Kd5 Ng7 Rf2 Bf3 Nc3 Bfg2 Rb1 a1N Qd3 a2 Qd4 Nc2 Ba3 a1R Rb2 Bf3 Rg2 Rc1 Bb7 Ne3+ Kc6 Nd5 Qdg1 Rf8 Nb5 Nb6 Nc3 Ra4 Na1 Rd4 Rg3 Ng5+ Qd5 Nd7 Rb6 Rb4 Nb3 Nf6 Qe3 Re8 Qd4 Re3 Rg1 Bd8 Kd6 Bfg2 Qe6 Rg3 Bf3 Bc7+ Kc6 Bf1 Bh1 Bfg2+ Qed5 Be4 Rg2 f3 Na5 Bd3 Nb3 Bda6 Qd6 Nd5 Qe6 Bcb7+ Kd7 Ba8 Qf5 Bf4 Qe6 Ne4 Kd8 Bc8 Qd7 Bc7+
Bb2n3/1n4r1/2q1b1R1/2p2qP1/Nk3rpr/3b3N/nB2RRQ1/n1BK2Qb w - - 0 1 illegal: No proof kernel
2QK3n/N1N1r3/2n1B3/qp2Q1P1/1kBrR2Q/r2rB3/p1q2R2/n3bbqn w - - 0 1 illegal: No possible last move
bR1nN1q1/r1Q1BnbB/R7/qpp1Pr1r/4Q3/1k2Nq1r/2b3KB/5Rb1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 d4 Ke6 a4 Kd5 g4 c5 g5 b5 a5 f5 a6 h5 a7 c3 e3 c2 g6 f3 g7 b3 Rh2 b2 Rg2 f4 Ra3 h3 Qe1 h2 Nd2 h1Q Ne2 b1B Ra6 h4 Rb6 h3 Re6 h2 Nc4 Nh6 g8Q Bb7 Qg3 Nc6 Rg1 Nf7 Nd6 Rh5 Ne8 Kc4 d5 Kb3 d6 Qa5 d7 Ncd8 e4 Bh6 Be3 c1B Nc3 Bc2 Ra6 Bb2 Nd5 Bd4 Bh3 Bc6 Kf1 f2 Bf5 Bb7 Bh7 Qg2+ Ke2 h1R e5 Nd6 Qg7 f1R+ Bf2 Qg5 Bg3 R1h3 Bh2 Rff3 Qf7 Qg8 Qh4 Bf2 Kf1 Bg7 Kg2 Bd4 Rd1 Bg1 Ne3+ Bd5 Qfe7 N6f7 Qd6 Bde4 Qc7 Bd5 Qg4 Bb7 Qf5 Rf1+ Qe4 f3+ Kh1 f2 Kg2 Rc8 a8R Bd5 Qb7 Rc7 Rb8 Bc6 Qc8 Ra7 Qc7 Ba8 Ra1 Rd1 Rc1 Rd6 Re1 Rf6 Rc1 Rff5 Ra1 Ne6 d8B f1Q+ Kh1 Nh8 Be7 Nd8 Rc1 Qf4 Kg2 Nhf7 Rf1 Qf3+
2q1qnQ1/1b3NK1/1QQ2B1p/b7/2B3b1/1pRNP1kq/2r1r1br/2RN1r1n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 Kh5 b5 a4 f5 g4 d5 c4 b3 a5 h3 g5 b4 g6 d3 a6 h2 a7 d2 g7 d4 c5 b2 c6 b3 c7 d3 Na3 b1R Qc2 d1B Qd2 f3 Qh6 f2 Be3 d2 Bg2 f1R Nb5 f4 Ra5 f3 Ra6 f2 Bb6 Nf6+ Kg5 Ne4+ Kh5 Nd7 g8N Bb7 c8Q Rc1 Nc3 Bb4 Qcc6 Nf8 Nh3 Ba5 Nf4 Qc8 Bd8 Rc2 Bf6+ Kf5 Rg1 h1B Nd3 Rb8 Qe3 Ng3+ Kh6 Kg4 Bd5 Bg2 a8Q Nh1 Qeb6 Kg3 Kg7 Qe8 Nh6 Rc8 e3 Bg4 Bf3 d1Q Be2 Qc1 Nf7 Rb2 Nd1 Qc3 Bf3 Re2 Bd5 Qc5 Bc4 Qf5 Qe4 Rc5 Qec6 Qfc8 Bb5 Rcc2 Bc4 Rfe1 Ra7 f1Q Ra6 Bb4 Ra1 Ba5 Rc1 Qff5 Rf1 Qh5 Rf5 Rf1 Rc5 Qh2 Be6 Qh3 Rc3 h6 Bc4 Rh7+ Kg8 Rg7+ Kh8 Rg5 Qb8+ Re5 Qa8 Ref5 Kg7 R5f2 Qaa7 Bf5 Kh8 Bf3 Nd6 Ba6 Kg7 Rh2 Qf7 Bg2 Qg8 Bg4 Nf7 Bb7
1r1N1b1q/2nn2n1/5QBp/p1q1B1rB/R4R2/K1nb1b2/3kbNrP/N5Q1 w - - 0 1 legal: proof: e4 b5 b4 c5 f4 cxb4 a4 bxa4 f5 d5 f6 dxe4 Qf3 gxf6 Qg4 f5 Qd1 f4 c4 Kd7 g4 Ke6 d4 a5 Kd2 f5 Kc2 a3 Kb3 f3 g5 a2 c5 Kd5 c6 e5 c7 f2 g6 h6 g7 f4 Nf3 e3 Ne1 Ke4 d5 f3 d6 e2 d7 Ne7 g8Q Nd5 Bb2 Ke3 Ba3 e4 Qg4 Bb7 c8B Qg5 d8N Nc7 Nd2 Nd7 Qh5 Rg8 Rc1 a1Q Nc6 Qh8 Nb8 Qc5 Bh3 f1B Qe5 f2 Bg4 Rg5 Ka2 b3+ Ka1 b2+ Ka2 b1N Rc4 Nc3+ Kb2 Ra6 Qf6 Rb6+ Nb3 Rb4 Nd3 e1R Bf5 Be2 Bg6 Reg1 Nc6 f1B Nd8 R1g2 Nf2 Bd3 Qg4 Bfe2 Ra1 Bd5 Ra2 Bc6 Ka1 Ba8 Bb2 Bb7 Ra4 Ba8 Nd4 Kd2 Nc2 e3 Rf4 Baf3 Qg3 Bd1 Bb7 e2 Bbe4 e1N Bh5 Bfe2 Beg6 Nf3 Qg4 Nd4 Qg3 N3d5 Ka2 Nde6 Ka3 Ng7 Be5 Nc3 Na1 Bf3 Qg4 B1e2 Nh1 Rf2 Qg1 Rfg2 Nf2 Rb8+
3R1qBr/Rb2Nq1N/r2n1p1r/1BP3b1/2b3n1/1pbQQ3/k5q1/1N1KBr2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 h4 Ke6 a4 d5 c4 g5 e5 b5 a5 g3 h5 g4 c5 d3 h6 g2 h7 g3 a6 f3 a7 d4 Kd2 Kd5 e6 Kc4 e7 f2 e8Q f6 Ra4 Na6 Qee1 Bh6+ Qe3 Nc7 Qe2 Kb3 Rh2 Qf8 Qg5 Ne8 Nc3 Nd6 Qe1 Bb7 Nge2 g1Q Ra6 g2 Na4 Ka2 Ba3 b3 Rc6 b2 Ra6 b1Q Nf4 b4 Qe2 Qb3 Ng6 Qbf7 Kd1+ d2 Ne7 b3 Qge3 Bg5 Q2d3 Nh6 Bb4 Ng4 Rh3 Qh2 Ra5 g1B Nc3+ Kb2 Nb1 Qg2 Be2 f1B Rh6 Bh2 Rg6 Be5 Rg8 Q8g7 Rd8 Qgf8 Na3 Ka2 Bc3 Rc8 a8B Rc6 Ra7 Ra6 Nb1 Q7e8 Qg6 Qef7 Bb5 Bc4 Qgd3 Qg1+ Ke2 d1R Be1 Rc1 Kd2 Rc3 Kd1 Qg2 Qde4 d3 Qd5 d2 Qdd3 Bc8 Bd5 Bb7 Be6 Rc2 Bd5 Bc3 Be6 Rg8 h8N Rb2 Nhg6 Rh8 Bd5 Qh7 Bf7 Qfg8 Raa8 Qgh3 Be6 Qe8 Bg8 Qhf7 Ra7 Qh1 Ke2 d1R+ Bd2 Rf1 Nf8 Qhd5 Nh7 Qef8 Qf2 Qh1 Qe1 Qhd5 Kd1 Qe4 Bc1 Rh2 Bd2 Be5 Bc3 Rh6 Bb4 Qg2 Bd2 Rf3 Qee3 Bc3 Be1 Rf1
3q4/4rr2/1QbKpNnn/P2Qr2R/3nNk1b/1qp1N2Q/3r4/bR1nBB2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 b5 a4 h5 d4 b3 a5 e3 d5 h3 d6 e6 f3 c3 d7 c2 Rh2 c4 Ne2 b4 Qe1 b2 Rf2 h4 Na3 b1Q Nb5 h2 Qd1 h1N Qd2 h3 Qe1 b3 Ra2 b2 Bd2 c1N Rg2 h2 Nbc3 Rh7 Ng3 e2 Ra3 Bb7 Nd1 Nc6 Rb3 Nce7 Ne3 Bg7 Qf2 Ra7 Be1 Bc6 g5+ Kg6 Rb7 Nh6 Ne4 Nb3 Qg3 Bf6 Qh3 Nf2 Rg1 h1R Rb5 Nd4 Re5 Qb8 d8Q Rh2 Qb6 Qd8 Rh1 Bh8 Rf5 Rg7 Ke5 Nd1 f4 Qc2 Rg1 b1R Rh1 Qb3 Rg1 Qe8 Kd6 Rf7 Rh1 Rb2 Rc5 Rd2 f5+ Kh7 f6 Ng6 Rg1 Rae7 Rf5 Rf2 Rb5 Rf5 Rc5 Rg7 f7 Re5 f8Q Rgf7 Rd5 Qa8 Qfd8 Bf6 Qd7 Qd8 Rh1 Nh4 Rb5 Kg6 Rc5 Kh5 g6 Bh8 g7 Kg6 Nf6 Kg5 g8N Ng6 Ne4+ Kf4 Ngf6 Bg7 Bh4 e1B Rb5 Qa2 Rb1 Qb3 Rh2 Bf2 Rh1 Bg1 Be1 Bf2 Qg2 Bh8 Rh5 Bh4 Qh3 Rg5 Ne8 Ndf5+ Kc5 Ba1 N8f6 c3 Qd5 Nd4 Neg4 Qe8 Kd6 Re5 Ne3 Qd8+
3KnNk1/n2r1NNq/q2p2r1/Qq4rr/P4n2/B1n2b1R/3p1R2/2QB2bR w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 h5 Ke4 f5+ Kd5 Kf7 a4 d3 c4 b3 e4 b2 g4 d2 e5 b4 c5 h3 g5 h4 c6 b3 c7 f3 Rh2 f4 Be2 f2 Qc2 f1Q Qd3 f3 Qc4 f2 Qc6 Rh5 Bg4 Bc5 Qd6 Ra5 Be2 Nf6+ Kc4 Ne8 Kd5 Nc6 e6+ Kg8 e7 Bb7 c8Q Qc7 Nc3 b1Q Qe5 b2 g6 d6 Ke6 Na7 g7 Bf3 Bd1 Qa6 Ne4 f1N Rf2 h2 Nh3 h1R Nhg5 h3 Nf7 h2 Neg5 Ng3 Nh7 Rg1 Nf8 h1R Qg5 Qcb6 Kd7 Qbb5+ Kd8 Qh7 Qgf5 b1N Ba3 Be3 Qc1 Nc3 Qc5 Nge2 Qc7 Nf6 e8N Nf4 Rb1 Rg6 Rb3 Qd3 Rb1 Rag5 Qa5 Qdb5 Rb3 Nce4 Rc3 Bd4 Re3 Rhg1 Re1 R1g3 Rh1 Nc3 Qb2 Rf5 Qb6 Rgh6 Nh8 Bb7 Rg2 Bf3 Qc1 Bg1 Rf2 Rg4 Qa5 Rg3 Nhg6 Kf7 g8R Rd5 Ne6 Rc5 Ngf8 Rc7 Rg4 Rg2 Rg3 Rg6 N8g7 Kg8 Ng5 Ne8 Nf7 Re7 Rgh3 R2g5 Bb2 Rc7 Ba3 Rd7+
q1bQ2q1/nn2N1Nq/r2p1n1p/bb1PB2R/2Q1Kb2/1q6/R1R3Q1/B3k1r1 w - - 0 1 illegal: No possible last move
3q4/4BN2/B1pn2r1/n2QK2R/2Rq1BQ1/r1P1b2n/bN1R1pn1/k1q3rq w - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 a4 h5 g4 f5+ Ke5 b5 a5 f2 c3 f4 d3 f3 a6 b3 a7 b2 g5 b4 g6 h3 g7 h4 Qe2 b3 Ra3 h2 Ra6 h3 Qe4 Be6 Qg6 Rh6 Qg3 Rg6 Qg2 Nh6 g8R Nc6+ Kf4 Nf7 Ne2 Na5 d4+ Kc4 d5 c6 d6 Bh6+ Ke4 Be3 d7 Nd6+ Ke5 Bf7 Rg1 h1Q Rf8 h2 Qh3 e6 Bg2 f1Q Nf4 Qd3 Qg4 Qd1 Nh3+ Kd3 Nf4+ Kc2 Nd2 b1Q Nc4 b2 Nd3 Qa1 Bh3 Kb1 Rh8 Ka2 Rh7 b1R Rh5 Qb2 Rg3 Ka1 Rg2 Qa4 Bd2 Rg1 Bc1 Qb1 Ndb2 Bg8 Bd2 Qc1 Re2 Bf7 Bf1 Nab7 Rf2 Bc5 Kf4 Qg2 Nd1 h1N Re2 Nf2 Nb2 Qh1 Ra5 Bb6 Rac5 Qad1 Ne5 Nh3+ Ke3 f2 Kd4 Qc7 d8B Bg8 Bg5 Qd8 Be7 Bf7 Nf3 Bg8 Ng5 e5+ Ke3 e4 Kd4 e3 Ke5 Ba2 Nf7 Rb8 a8Q Ba7 Re1 e2 Bdg5 Qa4 Rd1 e1N Rd2 Ng2 Bf4 Bb6 Qa6 Na5 Qb5 Ba7 Qd3 Rb3 Qd5 Ra3 Be2 Qb4 Ba6 Qbb6 Rc4 Qb4 Re4 Be3 Red4 Qc5 Rc4 Qd4+
NNn2bq1/Q2bR3/bp2q2R/2r1P1Q1/B1k2r1q/3n2Rb/Kp3N2/2Bnq3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 e4 Kd6 c4 Kc5 Kc2 h5 Kb3 f5 g4 d5 a4 d3 g5 d2 a5 b6 g6 h3 g7 h4 a6 d4 e5 d3 a7 f3 Ne2 f4 Qe1 d1N Bd2 h2 Nd4 h3 Qg3 f2 Ne2 f3 Ka2 b3+ Ka3 b2 Qf4 Rh4 Qg5 Ne7 g8Q Na6 Kb3 Bd7 Ra3 Rc8 a8N Rf4 Nd4 Nb4 Bc1 d2 Nc3 Nd3 Nc6 Rc7 Q8g6 Nc8 Qg7 Qe7 Qf7 Qe6 Nb8 Kd4 Qfe7 Rc5 Ne4 Qg8 Bg2 f1B Ka2 f2 Bf3 Bg2 Bg4 f1B Nf2 Bb7 Bh5 Ba6 Be8 Bg4 Ba4 Bd7 Rg1 h1Q Rg3 h2 Qeg7 Rd5 c5 Kc4 c6 Bfh3 c7 Qe1 Qf7 h1Q Rc3+ Kd4 Rc6 Rc5 Re6 Kc4 Re7+ Qd5 Qfg7 Qde6 Qh7 Na7 c8R Qe4 Rc6 Nc8 Qf7 Qeh7 Rd6 Qh4 Qh7 Ne3 Qf7 d1Q Qfg7 Qe1 Rc6 Qeg4 Rh6 Nd1 Ree6 Bc6 Qa7 Bd7 Re7 Q4e6
BNq4k/2B2q1n/qpr5/2Pb1QN1/1rq2K1N/p1r2n2/RB1Q1r2/1Rb3n1 w - - 0 1 illegal: No proof kernel
5k2/n4rN1/npn1b1Br/2p1qR2/N1qPK1Q1/1r2b3/R3rNnB/5QRq w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 c5 e4 f5 g4 b3 d4 b2 a4 c3 e5 c2 g5 h3 a5 h4 a6 b6 e6 h2 e7 h3 a7 Be6 g6 Na6 g7 Qc7 Bc4 Rh6 Qd2 Qe5 Na3 b1N Nb5 Na3 Bb2 c1Q Bf1 Qc4 Nc3 Nb5 Kf2 f3 Ra5 f4 Na4 Kf7 e8N Ne7 g8R Nc6 Ng7 Re8 a8Q Nba7 Bd3 Be7 Qb4 Bg5 Bc1 Re7 Rc8 Re8 Rc7+ Kf8 Qb7 Re7 Qb5 Rf7 Be3 Re7 Qc8+ Re8 Ke1 f2+ Kd2 f1R Bg6 f3 Bf4 f2 Rd7 Rb1 Rd5 Rb3 Qd7 Rc3 Qb1 Rb3 Qf1 Re7 Qd3 Rf7 Qf1 Qd6 Rf5 Qb8 Nf3 Qe5 Rg1 h1R Ne1 Rh2 Nd3 Rg2 Nh5 h2 Ng7 Qc7 Ke3 h1Q Kf3 Qe5 Bg3 Be3 Bh2 Qf6 Ke4 Qe7 Qe2 f1N Nf2 Qg5 Nc3 Qg3 Ra2 Qc7 Na4 Qe5+ Kf3 Ng3 Qf1 Ne2 Qd5 Nf4 Qe4 Nd5 Qg4 Nf4 Nd1 Qd6 Ke4 Re2+ Qgf3 Qe7 Nf2 Ng2 Qh5 Qc7 Qg4 Qe5+
qQn5/8/P5B1/bRQp1NBq/2rb1n1q/RN2K1B1/1q1p1Rb1/1kb2rn1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 h6 Kd4 e5 f3 h7 b3 c5 g3+ Ke1 f4 Kd2 g4 c6 b2 c7 b4 e6 g2 e7 g3 e8Q b3 Rh5 f2 Ra3 f3 Qc6 Qh4 Qg6 Nf6 Qh6 Bh3 c8R Nbd7 Ra1 Nb6 Qe1 Ba3 Qg6 Rf8 Rc3 Rac8 h8B Rc4 Be2 f1N+ Kd1 f2 Bf4 d2 Rf3 Nh2 Bc7 f1Q Qh6 Nc8 Rff5 Nf3 Bd3 Qf2 Rhg5 Qh5 Ne2+ Ke3 Be4 g1B Nbc3 g2 Bg3 b1Q+ Nc1+ Kd4 Qg6 b2 Qe8 Bh2 Qf1 g1B Rg8 Bg2 Nb5+ Ke3 Rg6 Qa2 Rg7 b1Q Nd6 Qb8 Rb7 Qb2 Rb5 Qa8 Bc2+ Kd4 Nb3+ Kc3 Rf4 Qd4 Ke2 Rf7 Rf5 Qdh4 Qc1 Bd4 Bg7 Bhg1 Bh6 Bb6 Bg5 Bgd4 Qg1 Ba5 Rf4 Rf8 Bg6 Rf7 Nf5 Kc2 Qge3 Ng1+ Kf2 Rf8 Qe5 Rf7 Qb8 Rf8 Ra2 Kb1 Rf3 Qc3 Rf4 Bc1 Ra3 Qb2 Rf3 Nd7 Rf4 Nc5 Rf3 Ne6 Rf4 Ba7 Qc5 B7b6 Rf3 Nf4 Ke3 Nfe2 Nh6+ Qc2 Qd4 Rf4 Nf5 Qb2 Rf1 Rf2 Re1 Nf4 Re2 Rf1 Rf2 Bc7 Qda7 Be5 Qc5 Bd4+
1N2qRNr/1q6/p2n1BQb/n2b1p1B/2rP2R1/q3k2n/1bb3Q1/1Q3KqN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Ke6 d4 Kd5 b5 Ke4 e3 c5 b6 f5 b7 h5 g5 h3 g6 c3 g7 h2 Ra3 f3 Bb5 a6 Be2 c4 Qd2 c2 Nh3 h4 Kf2 c3 Bd1 Be6 Ke1 f2+ Kf1 Nc6 b8Q Bd5 Rg1 h1Q Qe1 Nge7 g8Q Na5 Qd6 Qe8 Qd2 Qh2 Bh5 Rc8 Qgg6 Rc4 Rb3 a3 Qb4 a2 Na3 a1B Nb5 Bh6 Na7 Bb2 Nc6 Nc8 Nb8 Nd6 Rg4+ Kf3 Nf4 h3 e4 Bg7 e5 Bh6 e6 Ke4 Ke2 f1B+ Ke1 Be2 e7 Bd3 Ne2+ Kf3 Qdg5 B3e4 Bd2 c1N Kf1 Nd3 Ng3 c2 Nh1 c1Q+ Be1 Qc3 Bh4 Nf2 Qd2 Bb1 Bf6 Bc2 Qb7 Qe3 Qc1 Qc3 Qb1 Ke3 Rb4 Qa3 Qa8 Qf7 e8N Qb7 Rb5 Qe5 Rc5 h2 Rc7 Nh3 Rf7 Qe6 Rf8 Qec8 Bd8 Qcc6 Nf6 Qe8 Ng8 Bf3 Bf6 Bd5 Nf2 h1Q+ Rg1 Qh2 Rg4 Qbb3 Qc6 Qb7 Nh1 Be6 Qg2 Bf7 Nf2 Bd5 Nh1 Qg1+
Kq3n1r/1Q1Rn2P/2QBb1R1/b1nBN3/2bN1q1r/3pbp1k/B3n2q/N7 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Ke6 h4 f5 a4 d5 c4 b5 e5 g5 c5 b3 c6 f3 c7 f4 a5 Kf5 e6 d3 h5 b2 e7 b4 e8Q b3 h6 g3+ Ke1 Kg4 Kd2 g2 Kc3 d4+ Kc4 d2 Kb5 d3 Kb6 Nd7+ Kc6 Bb4 a6 Ne7+ Kb5 Ba5 h7 Nf8 a7 Be6 c8B Qc7 Ne2 g1N Ka6 f2 Qe1 d1B Nd2 b1Q Qc6 b2 Nd4 Ne2 Bg2 f1Q Bd5 Qc2 Rh6 b1N N2b3 Nbc3 Ba3 Na4 Rg6 Kh3 Bd6 g4 Qb4 g3 Qbb7 g2 Rb1 g1B Na1 Rb8 a8N Nc5+ Ka7 Be3 Nb6 Qb2 Rc1 Bb3 Nd7 Bc4 Ne5 f3 Rc3 Qfc1 Bd7 Qbd2 Be8 Qg1 Bf7 Qh2 Rc2 Qe1 Rc1 Qh4 Rcg1 Q4f4 Rg7 Nfd7 R1g6 Rbf8 Bg8 Rf7 Ka8 Nf8 Qe8 Rf5 Qec6 Rh5 Bf7 Rh4 Bg8 Nc8 Rd7 Ne7 Bf7 Bb5 Ba2 Bbc4 Bg8 Bg4 Bd5 Bf5 Nf7 Be6 Ne5 Qb8+
r7/B6p/rN1R4/1Nb3Q1/2Q2qb1/qPKRRbr1/1n3pqQ/rnk2b1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 g4 Ke6 e4 Ke5 c4 a5 c5 d5 c6 f5 c7 h3 b3 d3 g5 Kd4 e5 a3 g6 a2 g7 a4 e6 h2 e7 f3 e8Q f2 Qc2 f4 Nh3 f3 Qd7 a3 Qf7 Nd7 Qd1 Ra6 Nf4 Qh4 Nh3 Ngf6 g8R Nb6 Qe1 Nc4+ Kd1 d2 Kc2 d1R Qd7 Qf4 Bg2 f1B Qf7 f2 Qd7 Bc5 Rg6 Nb2 Qee8 Rd3 Qg4 Rg3 Nc3 Ne4 Rd6 Nd2 Qg5 Bg4 Qeh5 Ke3 c8Q d4 Nb5 d3+ Kc3 Bf3 Rg1 h1Q Qhh6 Qh2 Bh1 Qg2 Qcg8 Ke2 Qc4 Kd1 Rb1 a1R Qhh4 Qg4 Nf4 a2 Nd5 Qf4 Nb6 Rha8 Qe6 Ndc4 Qh2 d2 Qeg8 Ke1 Qf7 d1B Be3 Nd2 Rc1 Bg4 Rc2 Bdf3 Qc4 Rb1 Rd3 a1Q Rc1+ Ke2 Rd1 Qa3 Nc8 Bf8 Ba7 Ra1 Nb6 Bc5 Rd6+ Ke3 Qf7 Ndc4 R1d3+ Ke2 Qfg8 Nd2 Qc4 Kd1 Re3 Kc1 Rdd3 Bd1 Rd6 Bd3 Rge1 Bf1 Red3 Bf3 Re4 Bg4 Re7 Bdf3 Ree3 Nb1#
3B3Q/1qbB1rNp/1kq5/1rr3Rn/2qPr3/Q2qN2R/pb4BK/Q1n4b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 g4 Kc6 Kg2 f5 b4 a5 e4 c3 b5+ Kb6 g5 c5 d3 c2 g6 c4 e5 c3 e6 f3+ Kh2 a3 e7 a4 e8B f2 g7 a2 Bf4 c1Q Na3 h3 Qb3 c2 Bh5 Nd7 Bd2 f4 Bc3 f3 Qb1 Ra5 Bg6 Ngf6 g8Q Bb7 Bf7 Bd6+ Be5 Nh5 Be8 Nc5 Bg6 Bc7 Qf8 Nb3 Bg2 f1R Ne2 f2 Be8 Qf6 d4 Qc6 Qb4 Qc4 Bec6 Re8 Bd7 Qc6 Bg3 Re4 Nf4 Qd1 Qf8 c1R Ne6 Rc5 Nc2 a3 Ne3 Qd3 Ng7 Nc1 Qd6 Qc4 Bh4 Qd3 Qb2 Ba8 Rb1 a1B Bd8 a2 Rg1 Bb7 Qc3 Ba8 Rb3 Bb2 Qe1 Ne2 Qa1 Nc1 Kh1 h2 Qg3 Kb7 b6 Rab5 Qd6 Ka6 b7 Kb6 Rc3 Rd1 Qf8 f1Q b8Q+ Qb7 Rb3 Qfe2 Qh8 Rf1 Qc8 Qc6 Ra3 Bb7 Qa8 Rf7 Rb3 Qec2 Qa3 Ba8 Bf1 Qcc4 Rg5 Qb7 Kg2 Nf4+ Kg3 h1Q Bg2 Qh6 Rc3 Qhc6 Kh2 Nh5+ Kh3 Ree7 Nf5 Qh6 Bf1 Qe2 Ng7 Qa7 Nc2 Bh1 Bg2 Qc6 Rb3 Ree5 Kh2 Qab7 Rh3 Qed3 Ne3 Re4+
1N1Q1N2/2bq2P1/4B2p/1n2pR1r/r2q2RB/N2k2b1/1QrB2Kn/2bn1bn1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kd7 f4 Kd6 Kf2 Kd5 g4 b5 a4 c5 g5 e5 g6 h6 g7 c3 a5 c2 a6 b3 f5 h3 a7 b4 f6 h2 f7 b2 Ne2 Kc4 d5 e3+ Kg3 b3 d6 Ba6 d7 Nc6 Qd6 Nd4 Qb8 Nf6 Qc7 Bd6 f8B Ng4 Ng1+ e2 Nc3 b1Q Qb8 b2 Be3 c1N Bf4 Qe4 Nf3 b1N Nd5 Nc3 Rg1 h1R Ne7 Rh5 Nh4 Nh2 Nc6 Qd3+ Be3 e1B+ Kh3 Qb6 Be7 Rc8 d8Q N1e2 Ra4+ Qb4 Rg5 Bg3 Bd2 Nd1 Qb7 Rc7 Nb8 Rc6 Bg2 Bc7 Bf3 Qf5+ Bg4 Ng1+ Kg2 Qd7 Ng6 Bb5 Nf8 Ba6 Be3 Kc3 Bc1 Be2 Be6 c4 Rf5 Kd3 Bd2 c3 Bh4 c2 Qb6 Qbd6 Qb2 c1B Rb4 Rc2 Rc4 Nc6 Rg4 Qd4 Na6 Rb8 a8N Na7 Nb6 Ra8 Nc4 Nb5 Nb8 Ra4 Na3 Bf1+
n5Q1/1rnKQ1pq/1B4b1/2BNRbb1/2b3nq/1rNP1p1n/1R4R1/3q1k1B w - - 0 1 illegal: No proof kernel
Qn3B1B/4n1pB/2P5/pNb1Q3/1rb4K/n2RrkqR/Qb3nN1/br2q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 e4 Kf6 c4 Kg5 b4 f5 e5 a5 h3 d5 b5 d3 c5 a3 e6 d2 e7 g3+ Kf3 g2 e8Q a2 c6 d4 b6 d3 b7 Rh4 Qde1 d1R Rh2 d2 Na3 Ne7 Qe5 Qd3+ Qe3 Be6 Qf7 Bc4 Bb2 Rb1 Bc3 d1N Qg8 Nf2 Ne2 g1B Bf6+ Kh5 Kg2 f3+ Kg3 Re4 Qd4 Re3 h4 Ra6 Qe6 Rab6 Qde5 R6b4 Rh3 Qd6 Qd5 Qe6 Bg5 Qg6 Qg8 Nd1 Nb5 f2+ Kg2 Kg4 h5 f4 h6 Bh2 h7 Bg1 h8B f3+ Kh1 Bh2 Nf4 Bg1 Be2 f1Q Ng2 Qe1 Bd3 f2 Be4 f1N Bf6 Qh6 Bh7 Nd2 Bh4 Bf2+ Kh2 Qg6 Bg5 Bh4 Bf4 Bf6 Bg5 Nd7 b8Q Nf2 Qa8 Nb8 Bh4 Qf7 Bg3 Qg6 Qge6+ Kf3 Qf7 R1b2 Rd1 Nb1 Rd3 a1B Qfe6 Na3 Qg8 Rb1 Bf4+ Ke2 Bg5 Re4 Kg3 Re3+ Kh4 Bb2 Qg3 Bfc3 Qe5 Ba1 Bf6 Bcb2 Qgd5 Ng8 Bd8 Bc5 Bc7 Ne7 Bd6 Ng8 Bf8 Ne7 Rd4 Bd3 Qa2 Bc4 Rh1 Kf3 Rd3 Qc3 Rh2 Qe1 Rh3+ Qg3+
2qnN1n1/Q2QBpq1/q4bBk/1n1Np3/7b/RrNP3r/Q1K3q1/R2b2b1 w - - 0 1 illegal: No proof kernel
q6b/1nr1p1B1/1k2Bn2/1N6/b2K2nN/1q1Q1nbN/Rpq1P1Qb/2r1Q1R1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bc1 fxg6 Qd2 g5 Qf4 g4 Qg3 hxg3 Kd2 g5 Kd3 b5 f4 d5 a4 Kd7 h4 Kc7 c4 g2 a5 b3 f5 b4 c5 g3 a6 g4 f6 b2 c6 b3 f7 Bd7 a7 Nf6 h5 Bg7 f8Q Na6 h6 Kb6 c7 Rc8 a8Q Ba4 h7 Nc5+ Kd2 d3 Ke3 d2 Nf3 d1Q Bd2 g1N Bb4 g2 Ra3 d4+ Kf4 d3 Ke5 d2 Qg8 g3 Bc3 Qc2 Nh4 d1N Qe4 Nb7 Qd3 Nf2 Ra2 Qe8 Na3 b1Q Bb2 N2g4+ Kd4 Qbd1 Bc3 b2 Nb5 Qb3 Qd5 Qdc2 Q5f3 Rf8 h8N Rg8 Nf7 Bh8 Qfe4 Rg5 Qg6 Rc5 Ng5 Qb1 Qh7 Ne5 Qde4 Nh5 Qg8 Ngf3+ Ke3 Q1d1 Qd3 g1B+ Ke4 Bf2 Bh3 g2 Be6 g1B Nh3 Bh2 Qg2 Bfg3 Rg1 Ng4 Bg7 Rc4+ Kd5 Rc1+ Ke4 Rb8 c8Q Qdc2 Qc4 Rc8 Qb4 Rc7 Qd2 Qa8 Qe1 Ng5+ Kd4 Nhf6 Qg6 Nd7 Qh7 Ndf6 Qd3 Nf3+
3N1r2/q2Qp3/B1Kb2qq/BBnPq1pb/r2R1b2/RNn4n/7k/QbN5 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Ke6 a4 Ke5 h4 b5 d3 c5 h5 c3 a5 b3 a6 c4 h6 c2 h7 b4 f3 c3 a7 g3 Nd2 b2 Ra6 b1B Rg6 g2 Rf6 b3 Rhh6 b2 Be2 Qa5 Qf1 Na6 Rh4 Nc5 Nb3 Bg4 Qd1 Bh5 Ra6 Nf6 Bd2 c1B f4+ Kf5 Kd4 c2 Kc4 e3 d4 Nfe4 Kd5 Nc3+ Kc6 g5 d5 Bg7 Bb5 Be5 Ne2 Rhf8 h8N g1N Nf7 Bd6 Nd8 Nh3 Qh1 Qa2 Ra3 Qa1 Qd1 Ke4 f5+ Kf3 f6 Kg2 f7 Kh2 Be1 Bd2 Ba6 c1Q Rd4 Qc2 Nec1 e2 Bb5 B2f4 Bd2 e1Q Ba6 Re8 f8Q Qe5 Qf5 Rf8 Qd7 Qh7 Qe1 Qh6 Qf1 Rb8 a8B Rb4 B8b7 Ra4 Bb5 Ba2 Qd1 b1Q B7a6 Qbg6 Qf1 Bb1 Qe1 Nd1 Ba5 Qa2 Qc3 Qf2 Qa1 Nc3 Rd3 Nb7 Rd1 Qa7 Rd4 Nc5
n5BN/n2P2r1/2kBK1b1/3r4/b1pqnq1Q/bNrnR2Q/2pB3Q/6Rr w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 c5 a4 b5 e4 f5 d4 g5 e5 g3+ Kf3 g2 h5 b3 h6 c3 d5 c4 a5 g4+ Kf2 b4 a6 f3 Ke3 g3 Kd4 f4 h7 b2 d6 b3 Kd5 f2 a7 f3 Na3 b1R Ne2 g1R Ra2 g2 Qe1 b2 Nf4 Ne7+ Kd4 Nec6+ Kd5 Na6 Be3 Rc1 Nc2 b1B Na1 Bg6 Bd3 f1Q Bd2 f2 Ra3 c2 Nb3 Rd1 Qe2 Rb8 a8Q Na7 Qf3 Rb6 Qb8 Nc7+ Kd4 Be7 Qh3+ Kc6 e6 Na8 Ke5 Bd7 Bf5 Rg8 h8B Rg7 Bd3 Bf8 e7 Rb5+ Kf6 Rd5 Bf5 Re1 Be6 Re3 Bg8 Rc3 Qh4 Qb6 e8Q Qd4+ Qe5 Bde8 Ke6 Qc1 Qeh5 f1N Qf5 Ng3 Qfh3 Rf1 Rg1 Ne4 Qbd8 Rd1 Q4g3 Re1 Qgh2 Rf1 Qdh4 Rd1 Rf1 g1N Re1 Nf3 Rg1 Bh5 Ng6 Ne1 Nc5 Nd3 Nb3 Rh7 Bf6 Rg7 Nh8 Bhg6 Be5 Be7 Rg5 Rh1 Rg1 Kb7 Bef4 Ba4 d7 Kc6 Bd6 Bf8 Ra1 Qf1 Re1 Qf4 Re3 Be7 Be5 Bc5 Bd6 Ba3
3K1b1R/1N1p1bkq/r1Q4q/B1q5/1b2Q1b1/4R3/Np1Pr3/1NBqnnnB w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 Kf2 f5 h4 Kf7 a4 g5 e4 b5 e5 c5 a5 g3+ Kf3 b4 e6+ Kg7 h5 b3 e7 c2 e8Q c4 a6 c3 a7 g4+ Ke2 g2 Kd3 f3 Kc4 f2 Kd5 g3 Ra3 f4 Ke5 f3 Qe2 Bb7 Ra5 Qh4 Bb2 c1Q Rd5 c2 Ba3 Na6 Bb2 Nb4 Rd4 Bd5 Qe3 Nf6 Re4 Bf7 Qc5 Qd1 Qee7 c1Q Kd6 Nc2 Kc7 Ne1 Ne2 g1N Bg2 f1Q Qc6 f2 Re3 Qc5 Nc1 Qa6 Qe4 f1B Na2 Be2 Bc1 b2 Rh3 Rg8 Bh1 g2 Rh2 Re8 a8N Bg4 Nb6 Re5 Nc8 Nd5+ Kb8 Rh8 Nd6 Rh6 Nb7 Rg6 Kc8 Qhe7 Reh3 Ne3 Rg3 Nf1 Re3 Qh4 Kc7 Re7 Kd8 Qd3 Qc7 Ra6 h6+ Kg8 h7+ Kg7 Qd6 Qh6 h8B+ Kg8 Qec6 Qdh7 Bc3 Re6 Ba5 Kg7 Qdd5 Re5 Rf3 Re2 Qd3 Nh3 Qe3 g1B Qee4 Bd4 Rb3 Ng1 Re3 Bc3 Rh5 Bb4 Rhh3 Q6g6 Rh6 Qg8 Rh8 Q8h7 Bf3 Qe6 Bh1 Qeh6
1Kn1N3/B1bp1R2/3Qn2N/1PBn1q1b/3n3p/1rrR1rqk/B1q2q2/2Q2R2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 b4 h5 c4 a5 f4 h3 c5 d3 Ke3 a3 Kd4 e3 b5 e2 g5 Kf5 Kd5 Kg4 g6 e5 c6 e4 f5 a2 c7 h2 f6 d2 g7 a4 f7 e3 Ba3 h4 Qe1 d1Q+ Qd2 e1Q Bd6 a3 Be7 e2 Kd6 Na6 Nh3 Bb7 c8R Nc7 Rb8 Qc2 Ng5 Nd5 Qa5 Qf2 Qa6 e1Q Nf3 Qee3 Bd3 Kh3 Rf1 h1R Ne5 Qeg3 Nd2 Rh2 Rae1 a1N Re3 a2 Ne4 Nb3 Nf6 a1N Ne8 Nc5 Bc4 Nab3 Rd3 Nd4 Ba2 Nce6 Qa3 Rh1 Qc1 Ra3 Ra8 Rb3 Ra4 Ngf6 g8Q Nb6 Qg6 Nfd5 Ra3 Bh6 f8B Bf4 Bg7 Rf8 Bh6 Bd2 Be3 Ba5 Qh6 Rf4 Ng4 Rf3+ Qf4 Rh2 Nh6 Rg2 Bf8 Qf6 Qe5 Qf5 Ra4 Ne2 Rf4 Rc3 Bc5 N2d4 Be7 Ba8 Bd8 Bc6 Bc7 Rg1 Bb8 Ba8 Ba7 Bb7 Rfd1 Re1 Qf6 Ree3 Rf1 Rb3 Rd2 Rec3 Rd3 Bc6 Qe5 Qfg4 Rf6 Qf5 Rf7 Re3 Ng7 Ndf4 Qb2 Bf3 Ne8 Bh5 Qc1 Rf3 Qd5 Nd8 Kc7 Nc8+ Kb8 N8e6 Qc6 Nd5+ Qd6 Bc7+
1q1B3N/r1p5/5NK1/1b2p1B1/1r1nQNrb/nqR1b1RQ/3nnk1P/1r5B w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 f4 e5+ Kg6 b5 a4 g3 a5 b3 f5 c3 f6 g2 f7 c2 a6 b2 d3 e3 a7 b4 Nd2 b1Q Ra6 e2 Nh3 Ke3 d4 g1B d5 e1R d6 b3 d7 b2 Ra5 Be7 f8Q Nc6 Ng5 Ba6 Nh7 Bb5 Qf5 Qb8 d8B Nf6 Kg5 Nd4 Nf8 Ne4+ Kg6 Bh4 Qh3+ Kf2 Ra3 Qa2 Rg3 b1N Bd3 Na3 Qdg4 Qb3 Bc4 Rg8 Bd5 Re3 Bc6 Rc3 Bd5 Rc4 Rc3 Rb4 Bb7 Ng5 Qf4+ Ngf3 Ne4+ Ke2 Qfg4 Be3 Nf6 Kf2 Qe4 Nd2 Rg1 Bf4 Bb2 c1N Rgg3 Nce2 Bc1 Bh6 Qb1 Be3 Bh1 Ra4 Qe4 Rb4 Kh5 g5 Ng6 g4 Nh8 Re8 Kg6 Re6 Kf7 Rb6+ Kg6 Bf4 Rgd3 g3 Re3 g2 Rg3 Nf1 Bd2 Bh6 Bg5 g1R Rge3 Rg4 Rg3 Qc8 Bf3 Nd2 Bh1 Rab8 a8N R6b7 Nb6 Ra7 Nbd5 Rb6 Nf4 Qb8 Rc1 Rc6 Re1 Rc1 Reg1 Rb1 Rc3 Bf8 Rgg3 Bc5 N6h5 Ne6 Nf6 Be3 Kh6 N6d4 Kh5 Qa2 Kg6 Qb3
2r1B2q/qkp1Qnp1/2r1N3/1r1NbQ2/1R1r1nb1/B2P3q/R2K2RQ/n5q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 e4 Kc6 h4 f5 h5 b5 e5 g3 a5 b3 a6 c3 e6 c2 a7 b2 e7 f3 e8R f4 d3 g2 h6 b4 h7 f2+ Ke2 f3+ Ke3 b3 Nc3 b1R Qe1 b2 Ra4 Nf6 Nce2 Kb7 Bd2 c1N Nh3 g1Q Nef4 Bd6 Re7 Nc6 Rd4 Bg4 Ng5 Nb3 Ra4 Rc1 Bh3 b1R Rh2 Na1 Nd5 Be5 Ne6 Nh5 Ra2 Rc8 Bb4 f1Q+ Kd2 f2 Ba3 Rb5 Rg2 Nf4 Qe3 Rf8 h8Q Rc4 Qe4 Rf6 Qf5 Rd4 Qh4 Qh8 Rf7 Rg6 Qe7 Nd8 Rf6 Ra8 Rf8 Nf7 Rb8+ Kc6 Rb7 Rc8 a8Q Qb1 Qa4 f1Q Qd1 Qb3 Qe2 Qa4 Qf2 Qa7 Qe2 Rc5 Rb4 Rb5 Qf2 Kb7 Qg3 Bh5 Qh2 Qf3 Bg4 Qh3 Bd1 Bg4 Ba4 Rb6 Be8 Rb5 Ng5 Rgb6 Ne6 Rc6
1bq1q1nB/1P1p3q/QN1b3b/2p2B2/1k3NnN/3rq2B/r3R1b1/R3n1QK w - - 0 1 illegal: No proof kernel
2R1RBK1/kp2n2P/np1b1Q2/b2BN1N1/2n2qr1/3Q2r1/1rb1nN2/1qr3R1 w - - 0 1 legal: proof: f4 e5 d4 exf4 b4 h5 g4 hxg4 b5 c5 b6 cxd4 Bg2 axb6 Bh3 Qf6 Bf1 Qd8 Kf2 g5 h4 f5 a4 d5 c4 Kd7 e4 Kc7 h5 d3 e5 d4 c5 d2 h6 g3+ Kf3 d3 a5 g4+ Kg2 Qh4 a6 Bd6 a7 Ne7 h7 Rg8 e6 Na6 Be2 f3+ Kf1 f4 c6 f2 Kg2 f1R Nc3 Rf3 Nh3 Rg7 Qb3 d1R Rg1 d2 Ba3 Rc1 Bc4 d1N Bd5 Nb2 Ng5 Nc4 Nce4 Bb4 Qb1 Ba5 Nf2 Rb3 Qe4 Rb2 Qd3 Bd7 Ra2 Rag8 a8Q Be8 Bc5 Bg6 Qf8 Bf5 Qf6 Kb8 c7+ Ka7 c8R Rg6 Qd1 Bc2 Qd3 Qh6 Ra3 Qf8 Rc3 R8g7 Re8 f3+ Kh1 g2+ Kh2 g3+ Kh3 Rg8 Kh4 R6g7 Kh5 Qf7+ Qfg6 Qf4 Qf6 Rg6 Nf7 Rg4 Ng5 Rg7 Kh6 Rg8 Re1 g1B Bd6 Nc8 e7 Bh2 Rg1 g2 Bc5 Qe3 Bb4 Bd6 Ba3 Qf4 Bc5 Rf8 Kg7 Rf7+ Kg8 Rg3 Ng4 f2 Ne5 f1Q Rd8 Ra1 e8N Qb1 Ba3 Rc7 Bc5 Ra4 Bb4 Be7 Nd6 Bf8 Ne4 Bd6 Nf2 Rc6 Rh1 g1N Re8 Ne2 Rg1 Ne7+ Kh8 Nd2 Nh1 Bc7 Rb3 Qff1 Qfg6 Rf6 Qdf5 Nc6 Bf8 Rag4 Kg8 Bd6 Qd3 Rf7 Rb5 Nc4 Rc5 Rf2 Qf6 Ne7+ Kh8 Qfc1 Rcc8 Rf1 Nf2 Qf4 Kg7 Rc1 Kh8 Ng6+ Kg8 Ne7+
Brb5/1pRRB1P1/n2r2Nb/4prQ1/1N2kN2/2K4n/B1nnqQ2/1bq2b2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 a4 Kf5 f4 e5 g3 h5 a5 d5 c5 d3 a6 b3 c6 d4 a7 b2 c7 e3+ Ke1 d2+ Ke2 h3 Kd3 e2 Qa4 d1N Nc3 b1B+ Qc2 h4 Na2 h2 Ba3 h3 Be7 Na6 Nb4 Rb8 a8B e1N+ Kd2+ d3 g4+ Ke4 g5 Qd5 f5 Bh6 f6 Qb5 f7 Nf2 f8N Nf6 Ng6 Rf8 Kc3 Rf7 Qb2 d2 Bc4 d1R Ne2 Rd6 Ba2 Nc2 Rd1 h1Q Nef4 h2 Qc1 Nh3 Qe3+ Kf5 Qf2 Qe2 Rd4 Qc1 Rc4 Bd7 c8Q h1B Rc7 Ke4 Qg8 Bc8 Bf8 Rd8 Qf1 Nh7 Ne7 Bg2 g6 Qce1+ Kb2 Rf5 Qf2 N7g5 g7 Rd2 Neg6 Bf1 Kc3 Nf3 Bd6 Q1d1 Qd8 Rd5 Qg5 Rd4 Bb3 Ba2 Be7 Rd2 Bf7 Qde1 Rc1 Bb1 Rd1 Rd5+ Rd2 Qc1 Rd3 Rd8 Ba2 Nd2 Rd5 Rdf8 Rd3 R8f6 Rdd7 Rd6
4b3/P1BB4/Qq1NR1Q1/2r3qb/nb2rpb1/6pB/n1nn1k1N/1KQq2R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Ba3 f3 Kd2 Ke7 Kc1 Kd6 c4 Ke5 h4 Kf4 e4 Ke3 h5 g5 h6 f5 h7 b5 c5 d5 c6 f2 e5 b3 e6 f4 e7 b2+ Kc2 d3+ Kb3 d2 Kc2 b4 e8B b3+ Kc3 d4+ Kc4 d3 Kc3 Nf6 c7 Nfd7 Be7 Nc6 a4 Nb6 a5 Na4+ Kc4 Nd4 a6 Nc2 Be2 f1N a7 Kf2 Nc3 b1Q Rh3 b2 Kb3 Bd7 c8Q Qb6+ Nb5 Bc6 Qc7 Rc8 Bd8 Bb4 Bd7 Re8 Qb7 Rc7 Rh6 Re4 Bf5 Be8 h8Q Rc5 Qf8 Qc1 Ka2 b1N Nd6 Nbc3+ Kb3 Na2 Qf6 g3 Rb1 g4 Bc7 g2 Bd7 Nb2 Nf3 g1Q Nh2 Na4 Qa6 Qg3 Qe6 Qh4 Qg8 g3 Beg4 Qf6 Bh3 Qg5 Rb2 Qb1 Re6 Qa1 Qb1 d1B Qg6 Bh5 Qd1 d2 Rb1 Kg1 Qe1 d1B Qd2 Bdf3 Re1 Qd4 Qc1 Kf2 Rd1 Bfg4 Re1 N4c3 Kb2 Na4+ Kb1 Qd1 Bc6 Nfe3 Rg1 Nf1 Bd7 Nd2+
kr3qb1/bb6/2R3BQ/1b2n1rn/6p1/2B1Qr2/pQb1P2N/RNRbr1K1 w - - 0 1 illegal: No possible last move, all moves rejected
5r2/1kb3r1/R4QQN/nB6/Kp1bp2r/1Qbb1rrP/n4BR1/r1Bq3N w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 a4 d5 f4 Kd7 c4 Kc7 Kc2 e5 Kb3 b5 f5 g3 c5 g2 c6 e3 f6 d3 a5 e2 f7 e1B a6 e4 a7 g4 h3 g3 Qf3 d4 Qd1 d2 Ne2 g1R Nf4 d3 Na3 g2 Nc2 Rh4 Na3 Bd6 f8B Na6 Qh5 d1R Qg6 d2 Qf7+ Ne7 Kb2 b3 Nd3 Nb4 Rh2 Ba6 Nf2 Na2 Nc4 b4 Ne3 Bd3 Nh1 Kb6 c7 Kb7 Qg6 Nc6 Bg7 Na5 Ng4 Qd7 Nh6 Rf8 Be2 Rgf1 Qf6 g1B Rg2 Rf3 Qg6 Bb6 Bd4 Be5 Bf1 Bf2 Be2 Rg1 Bf1 d1R Qf6 Bc2 Bb5 Rdd3 Qg6 Bfg3 Qf6 Rc3 Bf2 Bbd4 Qg6 Bd3 Qf6 Qd6 c8Q+ Kb6 Qg4 Kb7 Qgg6 Qd5 Qd6 Bf6 Qe6 Bc7 Qe7 Rg3 Qef7 Qh5 Qc4 Qd1 a8Q+ Kb6 Qd8 Kb7 Qe7 Bh8 Qef6 Rf3 Rh2 Rgg3 Rg2 Rc2+ Kb1 b2 Qb3 Bc3 Qfe6 Bhd4 Qef6 Rd2+ Qc2 Bdb6 Nf5 Nc6 Ng7 Bf1 Bc4 Rd7 Nf5 Rg7 Nh6 Bbd4 Bb5 Be2 Qa4 Bd3+ Qc2 Qe2 Bd2 Nc1 Ra6 Na2 Bc1 Bc4 Qa4 Na5 Qa3 Qe1 Kc2 b1R Qb2 Ra1 Qb1 Nc6 Qb2 Bd3+ Kb3 Qg1 Ka4 Na5 Qb3 Qd1
1Q2bRrn/2R2Qr1/rrBN1pP1/bBb3r1/1R4q1/2bp3r/1n4K1/BN1k4 w - - 0 1 illegal: No possible last move, all moves rejected
b4RrQ/4NQp1/2np4/1r6/1n1PRNkB/2qb2bn/3K2R1/BnB1n1bn w - - 0 1 illegal: No possible last move
2r1bN2/kPB1r1R1/3nB1Q1/3bn1N1/b3R1bp/Qp4b1/Q2R2nn/q2b3K w - - 0 1 illegal: No proof kernel
rb1b3r/nkn1PNbR/1qbpR2b/4B1N1/4Q1K1/bR4Bp/3Qb1B1/b7 w - - 0 1 illegal: No proof kernel
2n3Qn/1Kn1RQ2/nN3Q1b/p4b1P/1kq1rpR1/N3brBb/B2Rr3/7r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Bd2 f3 Kf2 Ke7 b4 Kd6 h4 a5 c4 g5 e4 f5 h5 a3 b5 Kc5 e5 d5 e6 a2 e7 f4 e8Q g3+ Ke1 g4 b6 g2 Kf2 d3 b7 g3+ Ke1 d4 Qee2 Bh3 Qe5+ Qd5 Qe3 Ne7 Qde2 Na6 b8R Bh6 Rg8 Re8 Na3 f2+ Kd1 Rh7 Be1 d2 Kc2 d1N Kd3 Nc3 Rd1 a1R Nf3 g1B Qe6 g2 Qf6 Nb5 Nd2 Kb4 c5 Qf7 Ke4 d3 Ndc4+ d2 Qe3 Rh8 Bd3 f1R Bb1 Rf3 Nb6 Rh7 Qed4+ Qc4 Ba2 Bf2 Qg7 Bf5+ Ke5 g1N Qd7 Rb1 Qf6 Nh3 Rh2 Bg1 Re2 Ng5 Bf2 Bh3 Rde1 d1B Rd2 Bc2 c6 Rg3 c7 Rf3 c8Q Nbc7 Kd6 Bcf5 Qde6 Nf7+ Kd7 Rd1 Rg4 Nh8 Bg3 Bd4 Qd8 Nc8+ Qde7+ Bc5 Kc6 Rb1 Qd8 Rhe7 Kb7 Bf2 Ree2 Rh1 Qef7 Re5 Re3 R8e7 Qdg8 Re8 Red3 Re2 Rd7 R8e4 Re7 Be3
1n1N2QK/r1r1R2P/4q2Q/1b3pR1/2Bb1k2/b2b2r1/2Nnp1n1/Q1nBB2r w - - 0 1 illegal: No proof kernel
qN2b1b1/1r3q1k/1nr1R1R1/1Kq1P1r1/Q5p1/1pQ5/pbn1B1N1/1Bn1BQ2 w - - 0 1 illegal: No proof kernel
3n3r/k5qB/2bbQ1Rp/1q1npNNP/r1Q1B3/1K1p1bQR/5q1B/r2n4 w - - 0 1 legal: proof: e4 f5 g4 fxg4 d4 a5 b4 axb4 d5 c6 Qf3 cxd5 Qd3 dxe4 Qd1 e3 a4 g5 h4 e5 c4 b5 f4 d5 c5 Kd7 c6+ Kc7 a5 h6 f5 g3 h5 g2 f6 b3 f7 d4 a6 Kb6 a7 e2 Kd2 e1Q+ Kd3 b4 Kc4 g4 c7 g3 Be3 b2 Qe2 b3 Bg5 Bd6 f8Q Bg4 c8B Nc6 Qf4 Qf2 Nf3 g1R Bg2 Nf6 Nbd2 b1N Ne4 b2 Nh4 Qd7 Nf5 Nd5 Kb3 Bf3 Qc4 Nbc3 Rh3 b1B Bh4 d3 Ng5 Nd8 Bh1 g2 Bg3 Rc1 Bh2 g1Q Qg3 Nd1 Ra2 Qb7 Bd7 Qc6 Ra6+ Kb7 Be6 Qd7 Bg8 Bc2+ Ka2 Rb1 Bh7 Qb5 Rc6 Rb4 Ka3 Ba4 Ra6 Be7 Rg6 Bd6 Bg2 Qbc5 Bh1 Bc6 Bg2 Ra4+ Kb3 Be2 Be4 Bf3 Qd4 Qb5+ Qb4 Rc8 a8Q+ Kb6 Qb8+ Ka6 Qc7 Ra8 Qf7 Ra1 Qg8 Kb7 Qe6 R8a4 Nd4 Ka7 Nf5 Qb7 Qb5 Qg7 Qb4 Qb6 Qb5 Qgf2 Qb4 Qa6 Qc4 Qb5+
Q3R3/2B2r2/1qbqp1KP/2qRQ2p/3bpn2/N4r1B/1r4bB/2nkNnR1 w - - 0 1 illegal: No proof kernel
3rq1qK/4bp2/knn3p1/2B3Rn/Bqpr1PR1/r1NQ1Q2/8/b1Q1BbN1 w - - 0 1 illegal: No possible last move, all moves rejected
KBNn2rB/p6Q/1p2nR1b/2rkP2Q/1Rq1p3/1b3q2/B1N2q2/3r1Qbn w - - 0 1 illegal: No proof kernel
2BK4/4Q3/1BnB3b/QR1prr1p/1Pk1nnb1/1n1r3N/NR2n1pN/2bq4 w - - 0 1 illegal: No proof kernel
bB1br3/Q3bbbK/1n2Q1pn/2R2qrk/2BPN3/Q3pN2/n1R4p/N4r2 w - - 0 1 illegal: No proof kernel
rkqB2n1/2Nn4/2p2R2/rnb1bQr1/p2p2Bn/RbR5/K3P1N1/2B1nQ2 w - - 0 1 illegal: No proof kernel
2Bq1N2/R2nnpr1/Bkpp4/1b6/rQB3K1/b3rPb1/2n3rR/rNQ4R w - - 0 1 legal: proof: d4 a5 c4 g5 h4 gxh4 b4 axb4 Bf4 d5 Bd6 dxc4 d5 Ra3 Bc5 Kd7 d6 Ke6 d7 Ra8 Bd6 exd6 Qc2 Kf6 Qd1 Ke7 e4 b5 Ke2 h5 Kf3 h3 a4 h4 g4 c6 e5 b3 g5 b2 a5 c3 g6 h2 e6 c2 a6 c1B g7 h3 a7 b4 Kg3 b3 f3 Ba6 Qe1 Rh7 Ra3 Bb5 Nd2 b1N Ra5 b2 Bc4 Na3 Nb1 Nc2 Qb4 Bf4+ Kg4 Bg3 Nd2 b1R Ne2 Rb3 Nf4 Re3 Nb1 Qc8 d8R Nd7 Ra2 Qc7 Rc8 Qd8 Rc7 Ke8 Ng6 Ne7 g8B Bg7 Nf8 Bb2 Rb7 Ba3 Rb2 Rh8 Bh7 Rg8+ Bg6 Rg7 Ra2 Rb8 a8Q Rc8 Qa7 Ra8 Qac5 Ra5 Ra7 Ra4 Re1 h1R Rb2 Ng8 e7 Rh2 Rh1 Rg2 Qg5 h2 Bf5 Nb6 Bc8 Nd7 Ba6 Nd4 Rc1 h1R Rf2 Nc2 Re1 Rhh2 Rh1 Rg1 Rd2 Rf2 Re2 Rff1 Reh2 Rg2 Nd2 Ra1 Nb1 Rh7 Qf4 Rg7+ Kh3 Ree2 Rf1 Nb8 Qc1 Re3 Rfh1 Qc7 Ng6 Kd7 e8B+ Kd8 Kg4 Ne7 Bd7 Qb6 Bb7 Kc7 Bdc8 Nd7 Ba6+ Qb7 Qg1 Kb6 Qd1 Qc7 Qc1 Rh7 Nf8 Qd8 Kg5 Rg7+ Kh5 Ng6 Kg4 Ne7+
1nb5/kbp4b/p2R1pB1/1QN1n1R1/2r2r1n/1Pb1Q3/4bBR1/Nrq1KN2 w - - 0 1 illegal: No possible last move
2R2nBN/1p6/np3nr1/1k4BR/1p1BQqrQ/3N3P/KbN2n1b/nb1r4 w - - 0 1 illegal: No possible last move
1Qb2r1R/1Q2Kr1R/R4n2/1q5B/qp1n4/2N1pq2/1Pqn1Bp1/k1b2NqN w - - 0 1 illegal: No possible last move, all moves rejected
1Nn5/q1n2nKR/rq2N3/kr3p1N/n1Q1P2p/1Qp1bb1Q/2B1rB2/R3n3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb6 Ke5 c5 g4 h5 a4 f5 d4 f3 g5 h3 g6 b3 g7 h4 d5 f2 e3 c3 d6 c2 d7 h2 Ba3 c1N Be2 f1N Ra2 b2 Nf3 c4 Nfd2 Ra6 Bd3 Ne7 Kf6 Nbc6 g8Q Ka5 Nc3 b1R Be4 b5 Bc2 b4 Qdg4 b3 Qh3 b2 Nf3 Bb7 Ng5 Ne5+ Ne6 Qb6 d8N Bh6 Nd5 Nf7 Nf4 Nd3 Nh5 Bf3 Bc5 Ne1 e4 Ne3 Rg1 h1Q Rg7 Qg1 Ra1 Nc8 Rh7 Qf2 Kg6 Nd5 Bd4 Bg5 Kg7 Be3 Bc5 Nc7 Bd4 Kb4 a5 Qa7 Bb6 Rc1 Bd4 b1N Nc6+ Kb5 Nb8 Nc3 Bc5 Na4 Bb6 c3 Bc5 Rd6 a6 Ka5 Bd4 Qb6 a7 Rb1 Bc5 Rd2 a8Q+ Qa7 Qb7 Re2 Qd5 Rb5 Qb3 Qb6 Qe8 Qa7 Qc6 Rd8 Bd4 Rd6 Qcc4 Ra6 Bc5 Qh2 Bd4 Qd6 Bc5 Qdb6 Bd4 Bd2 Bf2 Be3
8/b1qb1q1Q/R2r2N1/QNnp1R2/2p1nbk1/1pbr1r2/1B1P1b2/K1QRB3 w - - 0 1 legal: proof: f4 b5 g4 e5 c4 exf4 b4 h5 Bh3 hxg4 Bg2 a6 Bc6 bxc4 b5 Nh6 b6 Ng8 Bb5 axb5 a4 Ke7 e4 Ke6 h4 f5 h5 d5 b7 c5 e5 g5 a5 f3 h6 f4 h7 Kf5 e6 g3 a6 g4 e7 g2 e8R g3 a7 f2+ Ke2 f1R Qa4 c3 Kd3 b4 Kc2 f3 Re2 f2 Rh3 c4 Rh6 Nd7 b8B Qc7 Ra3 Bd6 Rh4 Ngf6 Rg4 Nc5 Qa5 Nfe4 Re1 Bf4 Nh3 g1B Rd1 g2 Bb2 Rd8 h8Q Bd7 Kc1 c2 Nc3 b3 Nb5 Rg8 Rh4 Rg3 Rh5+ Kg4 Rf5 Rd3 Qhc3 Qd6 Bc7 Rd8 a8Q Qc6 Bb6 Qc7 Q8a6 Re8 Ra2 Re6 Qb7 Rd6 Ra1 Re1 Ba7 f1Q Bb8 Ree3 Ra2 Be5 Nf4 Bf2 Ng6 g1B Ba7 Rf3 Bb6 Qc8 Bd8 Bf4 Bh4 Qc7 Qba7 B2e3 Be1 Qf2 Ba1 Bd4 Kb2 c1B+ Kb1 Ba3 Qc1 Bb4 Bb2 Bbc3 Ka1 Qf1 Qa8 Bgf2 Qg8 Na4 Qh7 Ba7 Qb4 Nac5 Ra6 Qh3 Qa5 Qh5 Nf8 Qe8 Ng6 Qf7
2b1Q1N1/3Bb1br/RQ3BNp/2p1R1P1/pqq5/1n3r2/q1bN1b1k/1n2KB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Ke6 d4 a5 e4 c5 e5 f5 g5 h6 b5 h3 b6 h2 b7 a3 Kf2 a2 Nd2 a4 Nb1 c3 Bc4+ Qd5 Bb5 c2 Kf1 f3 Qd2 f4 Ba6 Kf5 e6 Kg4 e7 Kg3 e8B f2 Bf7 Ne7 Be8 Rh7 Qe1 Nbc6 b8Q Na5 Qe2 Nb3 Bb2 c1B Nh3 Be3 Bd7 Qe6 Bd3 Nd5 Qb6 Nc3 d5 Be7 Nd2 Nb1 d6 Qe4 B3b5 Qb4 Bf6 Bd4 Qe4 Be3 Ke2 f1B+ Ke1 f3 Nf4 Bd3 Ng6 Bc2 Rf1 h1Q Qe6 Qhh4 Rf2 Qh3 Bf1 Qg2 Qg8 Bd4 Qe8 Kh2 Re2 Bg1 Re5 f2+ Ke2 Na3 Re1 a1B Re6 Bd3+ Kd1 Nb1 R1e5 Ra7 Bc6 Ra6 d7 Bc2+ Ke2 Ra7 d8N Rd7 Bb5 Rd3 Bd7 Rf3 Nc6 Qgg4 Bg7 Qa3 Bf6 Qgb4 Rd6 Qa2 Rde6 Bf8 Nce7 Bd4 Ng8 Be7 Qb5 Bc3 Ra6 Bb2 Bh8 Bc3 Qb6 Bd4 Re4 Bg7 Re5 Bgf8 Bf6 Bg7 Bg2 Bf5 Kd1 f1Q+ Re1 Qfb5 Bf1 Q5c4 Re5 Bc2+ Ke1 Bf2#
nB3qKR/nbb1Q3/3R1p2/1p6/bk2q3/RnNP1B2/1nr1n1p1/1NB3rQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kc6 e4 Kb5 h5 c5 h6 g5 e5 f6 h7 g3+ Kf3 g2 Ke4 f3 a3 g4 e6 f2 Kf5 g3 Kg6 b3 Kf7 b2 e7 Nd7 e8Q Ne7 a4+ Kb4 a5 c3 a6 c4 a7 c2 Ra5 c3 Rah5 Nb6 Rg5 Nc6 Rg6 Rg8 h8B Bd6 Qh5 Bc7 Nf3 g1N Qd5 Ne2 Bg2 f1B Na3 b1Q Ng1 Bd7 Bg7 Rc8 a8R Na7 Bh6 Ba4 Bb2 c1N Bf4 c2 Rh8 Nd3 Rg4 c1N Bf3 Nb3 Bc1 Nb2 Qe7+ Qd6 Rgh4 Qe4 d3 Bg2 Nb1 Rg4 Rd8 Qc5 Rd6 Qce3 Rh7 Qd2 Be5 Qh6 Rh8 Rg5 Bef4 Rgg8 Qh5 Rg4 Qh1 Rg6 Rb8 Na8 Be5 b5 Rbb6 Bb8 Ra6 Rc2 Ra5 Bc7 Bef4 Ned4 Ne2 Rg5 Nec3 Ne2 Rf8 Bh3 Rh8 Bc8 Be5 Bb7 Bef4 g2 Bg3 Rf5 Kg8 Rf4 Bg4 Rf1 Bf3 Re1 Qe8 Bd8 Rc6 Rg1 Bb8 Bc7 Qe6 Nc5 Raa6 Bb3 Ra3 Ba4 Rd6 Nb3 Qe7 Qf8+
3q1nNN/n3rbQ1/Q3rpp1/4R2B/3q1B1k/b1Kn4/Rr1pPr2/rB1Q4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 h4 Kf6 c4 b5 a4 d5 a5 g3 a6 d3 a7 g2 c5 d4 h5 Kg5 h6 b3 h7 b2 c6 g6 c7 f3 Ra6 f2 Qe1 f6 Ra3 b4 Rb3 Nd7 Rc3 b3 Rc2 Ne7 Na3 b1R Qd1 b2 Nc4 Ra1 Nb6 b1R Nd5 Rb2 Nh3+ Kh4 Rg1 Ra6 Ng5 Nc6 Nf7 Ba3 Ne7 Re8 Ng8 Re7 Nh8 Nf8 Rh1+ Bh3 c8Q g1Q Bg2 f1R Bf3 Rf2 Bh5 Qg4 Rh2 Qg1 Rg2 Be6 Rg5 Bf7 Re5 Rab6 Qa6 Qg4 Ke1 Qgd7 Bf4 Qg4 Qc1 d2+ Kd1 Rab8 a8B Na7 Be4 Rbe6 Qb1 Ra2 Qc1 Ra1 Ra2 Rbb6 Kc2 d1N Qd2 Nb2 Qd1 d3+ Kc3 d2 Bc2 Nd3 Bb1 Be8 Nf7 Rb2 h8Q Qg1 Qg7 Qg4 Nh8 Bf7 Bh6 Qe4 Bf4 Qed4#
2bN2B1/n2Nq3/2pb2K1/rnnPR3/1kbB1B1p/q2r3p/1b3b2/2NR1QQ1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Kg5 e5+ Kh5 b5 f4 b3 a4 c6 g4 e3 d4+ Kb4 g5 c3 g6 c2 g7 e4 a5 b2 f5 h3 a6 e2 a7 e1B f6 e3 f7 e2 Na3 b1N Nc4 Nd7 Qd3 Bf2 Qd2+ Nc3 Qd1 e1Q Ne5 Nc5 Bc4 Ne7 g8Q Qa5 Ne2 Qa3 Bf4 c1B Qg1 Bb2 Nc1 Rg8 Bd5 Rg3 Nd7 Rd3 Ra2 Qe3 Qdf1 Qe4 Kg5 h5 Be6 h4 d5 Bg7 f8B Be5 Bf7 Bd6 Bg7 Ba1 Bg8 Bb7 Qg3 Ka5 Ne5 b4 Qfg2 b3 Rd1 b2 Qf1 b1B Qgg1 Nc8 Re2 Bb2 Nd7 Ba2 Bd4 Qe7+ Kg6 Bc4 Re4 Kb4 Re5 Rb8 a8N Nb5 Nc7 Ra8 Ne6 Ra5 Nd8 Nca7 Bg3 Ba6 Bf4 Bc8
k1B5/5KQQ/1rp4p/2b1N2Q/1r1nRnq1/1NpbR3/qr1PnB2/3Br2r w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 f5+ Ke5 b5 e4 Kb7 a4 h6 g4 c3 g5 h3 g6 f3 a5 f2 g7 b3 Qe2 b4 Qh5 b2 Qf3 f4 Qh5 h2 Ra4 f3 Ne2 b3 Nd4 Nf6 g8Q Qd7 Be2 f1N Qg7 f2 Na3 b1R Bd1 b2 Nc4 Qg4 Nb3 Ng3 Re1 h1R Re3 f1R a6+ Ka7 Qhg6 Nfh5 Q6h7 Nf4 Kf6 Nge2 e5 Bf5 e6 Re1 e7 Bd3 e8Q Bc5 Ne5 Nc6 Kf7 Rb8 Rae4 Ka8 a7 Ncd4 Qb5 Rb6 Qe8+ Kb7 a8B+ Ka7 Bb7 c6 Bc8 Ka8 Qe6 Rb4 Qeg6 Rd8 Qh5 Re8 Ba6 Reb8 Bc8 R8b6 Rg3 Ra1 Rge3 b1Q Bb2 Ra2 Ba3 R4b5 Bb4 Rb2 Ba3 Qa2 Bb4 Bf8 Be7 Rb4 Bh4 Bd6 Bf2 Bc5
2Q3B1/1RKQn1rb/1P4k1/r1bNp2p/5nqn/1p1q2Q1/1B3n2/NR1nb2R w - - 0 1 illegal: No proof kernel
BQ2q3/K3Qnk1/1p3r1q/pPrN4/2pr3q/3qq3/R1BQ2b1/bNRn3B w - - 0 1 illegal: No proof kernel
NR1bb3/1B3r1k/1p2PBp1/2BKNpqq/4r3/n1q5/3N4/QnRqQnq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 a4 Kf7 e4 Kg6 h4 d5 c4 f3 a5 b3 a6 b2 c5 g3+ Ke1 f2+ Kd2 g2 Kd3 b6 a7 Qg5 c6 Ne7 c7 Nbc6 e5 Nb4+ Ke2 d3+ Kf3 d2 e6 d4 h5+ Kh7 h6 g6 Bd3 f1N Ba6 d3 Qa4 Nc2 Bb7 Bd7 c8Q Be8 Qc3 Na3 Qaa5 Rd8 a8N Nd5 Qe5 Rc8 Qe1 d1Q+ Kf2 d2 Nf3 Rd8 Ne5 Qdh5 Qa6 d1Q Be3 Bd6 Bc5 Bc7 Nd2 Rf8 Rc1 b1Q Rh2 Qa1 Qa7 Kh8 h7 Nc3 Rh1 Kg7 h8B+ Kh7 Bf6 Ncb1 Qa5 Qc3 Qa6 Nc4 Qa1 Nca3 Rh4 Rd7 Rd4 Rdf7 Rd8 Rd7 Rc8 Rd4 Rb8 Rg4 Bh8 Rf7 Bf6 Qa4 Ke2 Bd8 Kf2 g1Q+ Ke2 Qca5 Kd3 Rf4 Bd6 Qad1 Bc5 Rf2 Kd4 Rf4+ Kd5 Re4 Qg3 Qb4 Qe1 Qc3
2k2b2/1n1q1NnB/p1p2QpN/1P1R4/1K5R/1nrn2B1/br2qN1Q/1B2qn2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 Kd7 Kd2 f5 Kc3 g3 b4 g2 e4 c6 h4 g6 d5 a3 b5 f3 h5 f4 d6 f2 h6 a2 h7 f3 e5 Nf6 Qe2 Nh5 Na3 Ng7 Nc2 Na6 Bf4 Nc5 Kb4 c3 Ne3 c2 Rd1 c1N Rh4 a1N Nh3 g1Q Ng4 Nb7 Bg3 Nab3 Nh6 N3c5 Rd5 N1b3 Qa2 a6 Bd3 f1N Qh2 f2 Bb1 Qe8 e6+ Kd8 Bf4 Qd7 Be5 Qg4+ Bf4 Qe2 Bg3 Rg8 h8Q Ra7 Qh7 Rh8 Qg8 Ra8 Qf7 Ra7 Nf5 Rh5 Nh6 Re5 Qf4 Re3 Qd4 Rc3 Qf6+ Qe7 d7 Ra8 Rd6 Kc7 d8N Qd7 e7 Qf5 e8B Nc1 Nhf7 Nd2 Nfg5 f1Q Qd4 Qfe1 Qf6 Nf1 Nf2 Be6 Bd7 Ba2 Be6 N1b3 Bg8 Qd5 Bh7 Rc8 Ndf7 Rd8 Ne5 Kc8 Neg4 Qf5 Rd1 Rd2 Nh6 Qd7 Ngf7 Rb2 Rd5 Nd3+
1b1N1nr1/Q2b1q1P/p1rKQR2/1q1n4/k1p4N/1R2bB2/n2Np3/R1Bbb3 w - - 0 1 illegal: No proof kernel
1rR1n3/6p1/3QK3/RrB1pqN1/4nR2/N2nB2b/Qp1P2q1/1rbn1Bnk w - - 0 1 illegal: No possible last move, all moves rejected
1B2B1K1/q4p2/4R1p1/r1N1Qqrb/2RB1b2/1bb1Q1P1/1rk1n2p/1NN2b1n w - - 0 1 legal: proof: f4 d5 b4 a5 h4 axb4 c4 dxc4 h5 e5 h6 exf4 Ba3 Qd6 Bb2 Qxh6 Bc1 Qh2 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 a4 h5 e4 c3 g3 b3 d4+ Kb4 d5 c5 a5 h4 d6 g6 a6 b2 a7 c2 d7 Kb3 d8B f3 Qd6 f2 Qd2 h3 Bb6 b4 Qd7 c4 Qd1 c3 Qd4 Nf6 Qd8 Bg7 Be2 f1B Qc7 Rh5+ Kd6 Qf2 Ke7 h2 e5 Ng4 e6 Rg5 Bd4 Nc6+ Ke8 Qf5 e7 Nf2 Bce3 c1Q Ra5 c2 Bf4 Qe3 Rc5 c1B Bb5 Bf6 Re5 Kc2 Kf8 b3 e8Q Ba6 Ba4 Bae2 Kg8 Bh5 Ne2 Bd2 Rg1 Nh1 Re6 Be5 Nc1 Bc3 Qa5 Bc7 Qe5 Qf2 Nd2 b1B Rg2 Ba2 Nb1 Bd6 Bb5 b2 Rg1 Rd8 a8N Bb3 Nb6 Ra8 Na4 Ra5 Nc5 Bc7 Qe7 Bd6 Qe3 Bb8 Qd6 Bc7 Qde5 Bb8 Nd2 b1R Ba4 Rb2 Nb1 Nb4 Be8 Nd3 Q5e4 Bc7 Bd6 Bb8 Qe5 Nf4 Rg2 Ne2 Bc7 Q2f3 Rf2 Qb7 Rf4 Qa7 Bd6 Bc7 Rh4 Bd8 Bb8 Bf6 Re4 Bd2 Bc3 Bh8 Rc4 Bg7 Bd4+ Bc3 Qd5 Be5 Qd6 Bf4 Qd5 Qe7 Qde5 Qa7
qN3knK/5p1q/bprR1b2/2r2BB1/qn1N3B/2qpN2R/P3Q3/3qb2Q w - - 0 1 illegal: No possible last move
3bbQ2/1Rn2p2/1pbq4/b2Q2pR/3P1N1N/3K2Rn/b1B1r1qk/1r1nBQ2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 e4 Ke6 Ke2 Ke5 h4 g5 h5 c5 h6 f3+ Ke3 c3 a5 b3 a6 f2 a7 b2 h7 c4 d3 b6 Ra6 c2 Nd2 b1B Ba3 c1Q Bb2+ c3 Bh3 f1B Ne2 g3 Qa4 g2 Be6 g1N Qe8 Nf6 Bd5+ Be7 Ng3 Bb7 Qf8 Qc2 Nh5 Qd6 Rh3 Bc6 Nf4 Ba2 Rg3 Bd8 Bb3 Nh3 Ba4 Rg8 h8R Rg6 Rh5 Nd5+ Kf3 Bg2+ Ke2 Ne3 Ba3 Bd7 Bb4 Nd1 Bb3 Qb2 Bc2 Be8 Ra3 Na6 d4+ Kf6 Ra4 Nc7 Kd3 Rg8 e5+ Kf5 e6 Bgc6 e7 Rh8 Re3 Kg4 Nf3 Kg3 Nh4+ Kh2 Rg3 Rh6 Ra5 Re6 Ra3 Rc8 a8Q Re2 Qa5 Ra8 Qd5 Rc8 Ra7 Ra8 Bb1 c2 Be1 c1B Bc2 Bd2 Rb7 Ra5 Qc4 Rb5 Qd5 Bed7 e8Q Ba5 Qee4 Be8 Qdf5 Qa1 Qf3 Rb1 Qf1 Qb2 Qd5 Re6 Ba4 Qg2 Bc2 Re2
6r1/R2qpq1R/KB4rQ/n3q2q/2qbB2P/pNrNQR2/3p4/2Qbn2k w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Ke6 f4 Kf5 c4 d5 b4 g5 c5 a5 b5 a3 c6 d3+ Kd2 a4 Kc3 a2 Kb4 a3 b6 d2 Kb5 e3 b7 Ke4 f5 d4 c7 e2 f6 e1Q f7 g3 Ne2 Kf3 Rh3 d3 Nf4+ Qe2 Qa4 d1Q Qa6 d2+ Kb6 g4 Nh5 Nc6 b8R Nh6 Qa4 Rg8 Rh2 g2 Qa7 g1R Nf4 g3 Nc3 g2 Rb7 Qc4 Bb2 Qd7 Nb5 Nf5 Bd3 Nfd4 Ka6 Nc2 Bd4 Na5 Bb6 Bg7 f8Q Bd4 Qh6 Ne1 Be4+ Kg3 Rc1 a1Q Nd3 Qh5 Rc3 Qhf7 Rh1 Qd1 Rh2 Qdh5 Rh1 Rg6 Rb3 Rf1 Rg1 Kh2 Rc3 Rf4 Rf1 g1Q Rf3 Qa4 Rc5 Kh1 Rg5 Qh2 Re5 Bg1 Nd4 Qac4+ Rb5 Rff6 Nb3 Qf4 Ne5 Rc6 Nd3 Qc1 Rf5 Qe5 Rg5 Rc3 Rg2 Rgc6 Rg7 Rg6 Rh7 Bd4 Qe3 Qc6 Qh6 Bg4 c8Q Qd7 Qc5 Bg1 Qce3 Rag8 Qb8 Qc2 Ra7 Qc1 Qc7 Bf2 Qef4 Bd4 Qe3 Kh2 Rf6 Bd1 Rf3 Kh1 Qd6 Rc7 Qc5 Rcc6 Qc2 Rc3 Qb2 Qc2 Qc1 Qa2 Nbc5 Qae6 Nb3 Qc4#
3Nq1B1/1qqnp1KB/p1n4b/P6B/3k2Nq/1bN1pQ2/R5q1/1r2QrRb w - - 0 1 legal: proof: f4 c5 g4 g5 b4 cxb4 e4 d5 Bb2 dxe4 Bf6 gxf4 g5 h6 g6 Bg4 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 a4 Ke6 c4 Ke5 h4 f5 c5 b5 d3 a6 g7 f3 Ke3 f2 h5 f4+ Ke2 e3 Kf3 g4+ Ke2 g3 Kf3 b3 a5 b4 c6 b2 h6 b3 h7 g2 c7 Qe8 Ra2 Kd4 Qe1 Nc6 Qe2 Nf6 g8B Be6 c8B Rb8 Nh3 g1Q Qe1 Qh2 Rg1 Bh6 Be2 f1Q+ Nf2 Nd7 Nc3 b1Q Bd1 Bf7 Kg4 f3 Kf5 b2 Ng4 Qc1 Bb7 b1Q Bc2 Kc5 d4+ Kc4 d5 f2 d6 Kd4 Bd3 Qfg2 Ba8 f1B Be4 Nc5 d7 Bb3 d8N Nd7 Bb7 Qh4 Bc2 Nce5 Bf3 Nc6 Bce4 Qgg3 Bd3 Bg2 Bc2 Bh1 Bd1 Qf8+ Kg6 Qc7 Bf3 Qd2 Bce4 Qg2 Be2 Bg5 Bd1 Qe8+ Kg7 Rb6 Bg6 Bf4 Bdc2 Bg5 Bh5 Rb5 Be4 Rf5 Bd3 Rf1 Be6 Bc4 Nf7 Qa8 Bhg6 Rb8 h8Q Qh5 Qf8 Qh4 Bh5 Rb6 Bdg6 Qe8 Nd8 Qb5 Bg8 Bh6+ Kh8 Rb8 Qf3 Qbb6 Be4 Qba7 Bh7 Rb1 Nd1 Bb3 Nc3 Bg5 Kg7 Qab7 Nd1 Bf4 Nc3 Bh6+
3N1nr1/2N1pP2/bK2Q1Bk/R1bbn3/R1qB1R1b/1bp1r3/n5qp/1QN5 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kg6 a4 h5 d4 c5 f4 b5 g4 b3 f5+ Kh6 d5 b2 a5 c3 d6 c2 a6 c4 Kd4+ e3 Kc5 h3 a7 c3 f6 b4 d7 h2 f7 b3 Ra3 h4 Qd3 h3 Qd2 Bg7 Bc4 Bd4+ Kb5 Qc7 d8N Ba6+ Kb4 Nf6 Ne2 Nh7 Ra4 Nd7 Rf1 h1B Bd3 h2 Qe1 Bd5 Na3 b1Q Nb5 b2 Bg6 Nhf8 Rf4 Qc4+ Ka5 Qba2 Nc7 b1B Bd2 Rc8 a8R Bc5 Nc1 e2 Be3 Ne5 Bd4 Rg8 Qf1 e1B Qd3 Bh4 g5+ Kg7 Qe2 Qb2 Qg4 Ba2 Qe6 Bb3 Ra7 Ba3 Kb6 Rh8 Ne2 c1N Ra5 Na2 Nc1 Qg2 Ra4 Bb5 R7a5 Ra8 Bb1 Rg8 g6 Ba6 Bd3 Kh6 g7+ Kg5 Bg6 Kh6 Qf5 Rh8 g8Q Rh7 Qb1 Rg7 Bh7 Rg3 Qg4 Re3 Bg6 Nh7 Nde6 Rg8 Nd8 Nf8 Qe6 Bc5+
3k1nQ1/b1Np2q1/4qr2/r1BKQ2B/p1nn4/1n1n3N/1qpRR1P1/1R4Bb w - - 0 1 illegal: Other
2Q1K3/2p1N3/1n1b1qRN/bBkqQ1b1/3rP3/nb1BppR1/1N1r4/2bnB3 w - - 0 1 illegal: No proof kernel
N1rr1B1Q/2p2r1N/3R1r1n/2K2pr1/2pbBR1q/k2Nqb1P/1R6/3nQ1b1 w - - 0 1 illegal: No possible last move, all moves rejected
2rK4/1qpnn3/3rr3/r1P1k1p1/1p1Rr1Q1/2q2QN1/1N2R1Nb/1bRbBB2 w - - 0 1 illegal: No possible last move, all moves rejected
3Q2K1/1NprB2R/r2NpqBn/p1QP2rR/1r1N1nb1/k7/5q1r/b3Q2b w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 d4 h5 Kg6 a5 Kf7 a3 g4 h3 f4 h2 d5 a2 f5 e3 f6 h4 g5 h3 g6 e2 g7 e1Q Na3 c3 Bd3 c2 Nf3 Qf2 Bg5 c1R Bg6 Nc6 Nb5 Rb1 Nfd4 Bg4 Nd6 e6 Qe1+ Ka4 b4 Rh7 b5 Ka3 b6 Nce7 b7 Rb4 b8N Ra6 Rb1 a1R Nd7 Ra2 Rc1 Re2 Nc5 Re5 Ncb7 Rf5 Rf1 h1R Rg1 Rh2 Rh1 Re5 Rc2 Rf5 Bh4 Rg5 Re2 Nf5 Re5 Ng3 Rf5 Nh5 Re5 Be2 Rf5 Nf4 Re5 Rg1 Rh5 Bg4 Bg5 Ne7 Bh4 Nf5 Kg8 Qe7 f7 Qf6 Bg5 Be7 f8Q Rgg2 Ne4 Bd6 Bh4 Be5 Qc5 Rg1 Ned6 Rg3 Nf3 Ba1 Bg5 Qe5 Be7 Nh6+ Kf8 Rgg2 g8Q Rg7 Nd4 Qg5 Bd8 Rd7 Be7 Rg3 Kg7 Qf6+ Kh7 Rhg2 Qd8 h2 Rg1 h1B Rf1 Nf7 Kg8 Rh2 Rg1 Bd1 Rh7 Rg5 Rg4 Bdf3 Rgh4 Bg4 R4h5 Nh6+
3kBR2/bp3nBq/1r2Qn1R/1PK3pb/4b3/n2NQ3/B3qrpb/4NQ1b w - - 0 1 legal: proof: f4 e5 d4 exf4 a4 h5 g4 hxg4 a5 c5 a6 cxd4 Qd3 Qa5+ Qd2 Qxa6 Qd1 Qa2 Kd2 a5 Kd3 d5 e4 g5 c4 f5 b4 f3 h4 a4 h5 f2 b5 g3 h6 f4 e5 f3 e6 a3 h7 Nf6 c5 Kd8 c6 Bc5 Ne2 Rf8 h8Q Ra6 Bd2 Nbd7 Rh2 Rb6 Bh3 f1B Qb3 f2 Qd1 Bg2 Bf5 f1Q Bg6 Qh1 Nc1 Ne5+ Ke2 Nf7 Qf1 d3+ Ke1 d4 Rh6 Qh4 Bc3 d2+ Ke2 d1N+ Kd3 Bh1 Nd2 g2 Nf3 Ne3 Ne1 Nc2 Qg7 Qb2 Kc4 a2 Ncd3 Bd6 Qh8 Bh2 Kc5 Na3 Be4 Bd7 Bd5 Qe2 Rd1 a1B Ba2 Qhe4 Rd2 Qh7 c7+ Kc8 e7 Bf5 e8B Be4 Qg7 Bb2 Qg8 Bc1 Rb2 Be3 Qg6 Beg1 Qh5 Be3 Qhf3 Beg1 Qe3 Bf2 Nb4 d3 Rc2 d2 Nbd3 d1B Rb2 Ng4 Bg7 Nf6 Rb4 Qd2 Rd4 Bh5 Rd5 Qe2 Rf5 Nd6 Bg6 Kd7 c8Q+ Ke7 Qc6 Nf7 Qe6+ Kd8 Rf4 Bfg3 Rf5 Bb8 Rf2 Ba7 Rf4 Nd6 Be8 Nf7 Qd2 Ng8 Ba1 Nh8 Bg7 Rf7 Qe3 Rf8 Rh4 Rf3 Rf4 Rf2 Rf7 Nf6 Rf8 Nf7
1n4B1/1p1Q1P2/N1NRNp2/B1Q4b/2B1knrR/K1p3r1/1n1q1r1b/2rr1q2 w - - 0 1 illegal: No proof kernel
QR1N4/p3bb2/1QK3rR/pQ1BknB1/4q3/b2P3b/2Nbnp2/Rr2nq2 w - - 0 1 legal: proof: f4 d5 h4 g5 a4 gxh4 c4 dxc4 f5 b6 a5 bxa5 f6 exf6 Nf3 f5 Ng1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 b4 h5 g4 h3 d3 h4 e3 c3 b5 c2 b6 c4 b7 f3 Bb2+ c3 Ne2 c1B Na3 f2 Rh2 Nd7 Kd5 Ne5+ Ke4 c2 b8Q Ne7 Rg2 h2 Nb5 h1B Nf4 h3 Qf3 h2 Nd4 Rh6 Nfe6+ Nf5 Qb6 Qe8 Kd5 Rg6 e4 Bd2 Bc1 Rb8 Nd8+ Bd6 Be2 f1Q Rg1 Bg2 Rh1 Bh3 Qg2 Nf3 e5+ Kg5 e6 Kf6 e7 Ne1 Bf3 Be6+ Ke4 Qa4 e8Q Be7 Qeb5 Qb4 Qg3 Rb7 Qb8 Qc4 Qa8 Qb4 Bb2 c1B Bc3 Ba3 g5+ Kg7 Bb2 f6 Bc1 Bf7 Bd1 Qc4 Bb3 Qa4 Bd5 Rb8 Rg1 h1N Rg2 Qc4 Rh2 Qc6 Nc2 Qe8 Be6 Nhg3+ Kd5 Ne2 Rh1 Qh8 Rh2 Qh4 Kc6 Qe4+ Bd5 Nd6 Q6c5 f5 Qcb6 f4 Rh1 f3 Rh2 Rh6 g6 Kf6 g7 f2 g8R Rg6 Rh1 Ke5 Rh8 Bf5 R1h6 Bh3 Rf8 Bdb4 Bg5 Bd2 Rfh8 Nf5+ Ne6 Beb4 Qa4 Bg8 Qe3 Rb5 Qb6 Bf7 Rb8 Bd6 Nd8 Rb1 Qab5 Be7+
q1b4k/p1B2Q1P/B2n1q2/1rb2N1K/pQRB1Nn1/1rp1q3/2rr2r1/3RR3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 f5 d4 Kf7 e4 g5 b4 Kg7 h4 c5 d5 c3 h5 g3+ Kf3 c2 b5 c4 d6 c3 e5 g4+ Ke2 g2 b6 f3+ Ke3 g3 Kf4 f2 d7 Nf6 Kg5 f4 b7 f3 e6 Na6 b8Q Bc5 e7 Nc7 e8R Nb5 Na3 Nd6 Be3 c1R Ba6 f1Q Rh4 f2 Qb4 Rb8 Nh3 g1Q Rc4 g2 Qf3 Rc2 Bd4 Rb5 h6+ Kh7 Nf4 Ng4+ Kh5 Qf6 Re6 Rd8 Rae1 Kh8 h7 Qd3 R6e2 f1R Rd1 Qge3 Ree1 g1R Qd5 Qde4 Qf7 Rb6 Nb5 Qa8 Na3 Rgg2 Nb5 Nb7 Nd6 Rb5 Nf5 Nd6 Nd5 Rff2 Nf4 Rf8 d8B Rfd2 Ba5 Rd8 Bb6 Rd7 Ba5 Rdb7 Bc7 R7b6 Qa3 Rb3 Qb4 Rb5
NBQ1br2/6Q1/2N5/b2r1R1R/1pbPnnRN/1K1n1q1p/1p2q1B1/1kbr4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 d4 Ke6 Kd2 Kd5 Kc2 Ke4 g4 b5 e3 c5 g5 f5 g6 h5 a5 b3+ Kb2 h3 a6 h4 a7 f3 g7 h2 Ne2 f2 Nf4 h3 Qe2 c3+ Ka3 c2 Ra2 c4+ Kb2 c3+ Ka1 Ne7 g8Q Na6 Qf7 Nd5 Qeh5 Qe7 Ba3 c1B Qg4 c2 Qe2 Rh5 Ng2 f4 Nh4 f3 Bg2 f1B Rg1 h1Q Bd6 Bd7 Na3 Nc5 Qg7 Nf4 Qc4 Rd5 Bb8 Be8 Rb2 b4 Nb5 Ncd3 Rb1 b2+ Ka2 Qe6 Ra1 Bd6 Qc8 Bc7 Kb3 Ba5 Ra4 Nf2 Ra3 Kd3 e4 Qa6 e5 Ne4 e6 f2 e7 Be2 Ra4 f1R Ra1 Rd1 Rb1 Bd7 e8R Kd2 Rg8 Be8 Rh8 Qe6 Rh5 Bc4+ Ka4 Qg4 Ra1 Qe2 Rf1 Ne6 Rff5 Nf4 Ra3 Qhf1 Rg3 Qff3 Rg4 Kd3 Rhg5 Bd2 Rh5 c1N Be5 Rb8 a8N Kc2 Bd6 Ncd3 Bc7 Rd7 Na7 Rd5+ Nc6 Bc1 Bd6 Kb1 Be5 Rb7 Bd6 Rf7 Bb8 Bb5+ Kb3 Rf8 Qcd7 Ba6 Qc8 Bc4+
3N3r/3KN2Q/2B3rb/3pBPq1/RBk2p2/2bRpQ2/2n1q1nq/1Q2nbb1 w - - 0 1 illegal: No proof kernel
Q1B3nN/KR2rRQ1/3NbR2/P1k1p2p/q1rb1b1n/1np5/3B4/Nq4nq w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 b5 f4 h3 a4 e3 a5 h2 f5 c3 g5 b3 g6 c2 g7 e2 f6 e1N f7 b4 Na3 b2 Qg4 b1Q Bh3 b3 Nf3 b2 Ne5 Na6 Rf1 h1Q Ng6 Rh7 Rf6+ Be6 Nh8 Qe8 d3 c6 Bd2 c1B Nc2 Rc8 Ra4 Rc7 Na1 Ng2 Rb4 Nh4 Rb7 Nc5 Qg5 Ne4 Bf5 Nf2 Qg6 Nh3 Bg4 Nh6 g8Q Bg7 f8R Ng1 Rf7 Qd7 Qa8 Ng8 Bc3 Bf4 Bd2 Bf8 Qg7 c5+ Kc3 c4 Kb4 c3 d4 Rc6 Kb5 Rc4+ Ka6 Qa4 Ka7 Kc6 d5+ Kc5 Qg5 Bh6 d6+ Be5 Qg6 Bd4 d7 Bf4 d8N Qe1 Qc2 b1N Qg6 Qc1 Qg7 Qf1 Be3 Nd2 Bh3 Nb3 Bd2 Qb1 Bg4 Bd5 Bc8 e5 Rfc7+ Qc6 Ndf7 Be6 Re7 Qb5 Nd6 Qe8 Qg5 Rf7 Qg7 Qa4 Red7 Rf8 Re7 Re8 Ref7 Re7
2rR2B1/1k3n2/2R1b3/pq1n1K2/BNq1Q2R/p2b3p/Qb1P1B1N/1qr1q1r1 w - - 0 1 illegal: No possible last move, all moves rejected
b2rKn2/1q1r4/Bn2b1N1/p1Bq3Q/Pb1qk1p1/1N1p3N/1rB3R1/1Q2b1R1 w - - 0 1 illegal: No possible last move, all moves rejected
KRQ2r1q/Bq4nr/nQ1N1Qb1/p1b1p2B/2r1P2N/1qk3r1/1p3RN1/7b w - - 0 1 illegal: No proof kernel
5b2/rN4r1/1rNQ3q/p1p1nRp1/1Q2qQR1/2nB1P1N/q5r1/Bb2kbK1 w - - 0 1 illegal: No proof kernel
3r2b1/2n1Nb1B/Rq1N2p1/Q3n1b1/2p1BBq1/K2R2Qb/n1Npq1P1/2r2k2 w - - 0 1 illegal: No proof kernel
1r6/2rq1KR1/1nk1BpB1/RN2r3/nq3nP1/Q1Bp1pbN/3qr2Q/2Nb4 w - - 0 1 illegal: No possible last move, all moves rejected
2q1r1R1/N1bkb1B1/q4p1Q/7B/K1P3Nn/BQ1pR1q1/2Q1rbp1/1n1r3b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 c4 a5 Kc2 d5 e4 f6 h4 f3 b4 f2 b5 a3 Kb3 g3 e5 d3 h5 g2 h6 a2 h7 g4 b6 d2 b7 a4+ Kc3 g3 e6 a3 Kb3 d4 e7 d3 Ne2 g1B Bb2 Nh6 Nd4 Nd7 b8Q Nc5+ Kb4 Nb3 Rh5 Kd7 Ra5 Nf5 Ra4 Bb7 Nc2 Bh1 Be2 f1Q Ne3 g2 Bh5 Qf3 Ng4 Qg3 Nc3 Qc8 Nb5 Nh4 Na7 Bf2 Qc2 d1R Ra5 Nd2 Ka4 Nb1 Qbb3 Rg8 h8B Rg5 Rc5 Re5 Bg7 Re2 e8Q+ Kd6 Qf7 Be7 Qf8 Kd7 Rc7+ Kd6 Rd7+ Ke6 Rd8 Rg1 Rd4 Re5 Rd8 Qc5 Nh6 Nd2 Rc8 Kd7 Rd1 a1Q Qh8 a2 Rc1 Nb1 Rg8 Re8 Ng4 Qc8 Re1 Re4 Re2 Rd1 Kb5 Re6 Re3 Re4 Rf3 Re2 Bc1 Qc3 Bb2 a1B Qh6 Qd4 Bc1 Qb6+ Ka4 Be5 Re3 Bc7 Ba3 Qba6#
N3b3/B4B2/4prRr/2p3Kq/1k2b2p/3PN2r/B1QqN2n/R1q1rnbQ w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 g4 h5 g5 e6 g6 h3 g7 b3 a4+ Kb4 a5 b5 f3 c3 a6 c2 a7 b2 Bc4 e3 Qe2 h4 Ra6 h2 Ba2 Rh6 Qg2 e2 Rb6 e1R Bc4 Ne7 g8B Nbc6 Bd5 Nd4 Be4 Nef5 Ra6 Ng3 Ra1 Bd7 Bf7 Nf1 Nc3 b1Q Nd1 Be8 Ne3 Bc5 Bd5 Qb3 Ne2 c6 Bb2 c1Q Rg1 h1R Qh2 Rb8 a8N Qd3 Qg2 Rh3 Qh1 Rf6+ Kg5 Rb7 f4 Nf3+ Kh5 N3h2 f5 Bd4 Kg5 c5 Ba2 Qd5 Rg2 Qf3 Rg4 Rh6 f6 Rc7 Bg6 Qdc2 f7 Qc3 f8Q Rf7 Qg8 Rf6 Bf7 Q3c2 Qg6 Qd3 Nc4 Bg1 Ne3+ Ka5 Be5 b4 Bb8 b3 Ba7 b2 Rg2 Qd4 Qc2 Kb4 Rg4 Rhg6+ Kh5 b1B Qd1 Be4 d3 Qdc3 Qc2 Rh6+ Kg5 Q3d2 Rg2 Bf5 Rg3 Qc6 Kf4 Qb7 Rg7 Qf3+ Kg5 Be4 Rg6 Qh5+
1qbN1r1n/Q2Q1nr1/1RBrpPQq/1pnp1N1K/N7/3Rq3/n3k2B/b7 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 a4 Kh5 f4 Kg4 c5 h5 g3 b5 a5 b3 a6 h3 f5 b2 a7 h2 c6 e6 c7 h4 Bd2 h3 Qb3 d3+ Ke3 Ne7 Bc3 d2 Bf6 d1R Nf3 Rd6 Qd5 Ng6 Nh4 Na6 Be5 Nc5 Ra6 Rh7 Bg2 Bg7 Rd1 h1Q Rb6 h2 Nc3 b1N Na4 Nh8 Rd3 Nc3 Kf2 Rb8 a8Q Na2 Qa7 Qc1 Bf4 Be5 f6 h1Q Nf5 Qh6 Bh1 e3+ Kg2 Bb7 c8N e2 Nce7 Qe3 Nc6 Bc8 Qd4 Qe8 Nd8 Rg7 Qd5 Ba1 Qc6 Kh5 Kh3 e1N Qd5 Nf3 g4+ Kg6+ Kg3 Ne5+ Bf3 Ra8 g5 Nef7 Kg4 Qh2 Qdb7 Qhf2 Bg3 Qf1 Bc6 Qff4+ Kh3 Kh5 g6 Qee4 Bh2 Qee3+ Kg2 Kg4 Qc7 Rh7 g7 Qf8 g8Q+ Rg7 Qh7 Ba6 Nb7 Qb8 Nd8 Bc8 Qg6+ Qg5 Ng3 Kf4 Kh3 Qge5 Rd5 Kf3 Kh4 Q5f4+ Kh5 Kf2 Nf5 Ke2 Bb7 Rc6 Rd3 d5 Qe7 Rd6 Bc6 Qb7 Be8 Bd7 Nc6 Rc8 Qd8 Qb8 Qdc7 Rd8 Qcb7 Bc8 Bd7 Re8 Nd8 Reg8 Bc6 Rf8 Qd7 Qh6+
3Nr1bB/1R3BqQ/kPp2b2/1bB1rNpn/n3R1r1/1Np1K3/4qr2/q2Q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 b4 Kc6 e4 Kb5 h4 g5 d4 f5 h5 a5 h6 f3 h7 f4 e5 c6 d5 g3+ Ke1 g2 Kd2 a3 d6 a2 d7 a4 e6 f2 e7 a3 e8N f3 Nc3+ Ka6 Nd5 Bg7 Rh6 Nf6 Bd3 f1R Nf4 f2 Ke3 Qe7+ Ne6 Nh5 d8Q Nd7 Qc7 Bf6 Bg6 Nc5 Ne2 g1R Rb1 a1Q Bf7 a2 Nd6 Rg4 Nf5 Na4 Ned4 Re8 h8B c3 Bd2 Qb2 Nb3 a1Q Bc1 Qba2 Ba3 Rb8 Rh7 Rb5 Rb2 Qf8 Re2 Qg7 Qe7 Rc5 Nd8 Be6 Re1 Bc4 Qe4 Rce5 b5+ Ka7 b6+ Ka6 Bc5 Q2b2 Bg6 Bg8 Bf7 Qba2 Kd3 Q2b2 Qh1 Qba2 Re4 Qe2+ Kd4 Rfg1 Qh3 f1B Qh2 R1g2 Qh1 Qeb2 Ke3 Bb5 Qh4 Rf2 Qh3 Ng3 Qh6 Nh5 Qg6 Qh6 Rg7 Qc2 Qh7 Qe2+ Kd4 Rff4 Bd5 Rg3 Rb7 Qg7 Bc4 Rgg4 Bf7 Qc2 Ke3 Rf2 Bd6 Qca2 Bc5 Qe2+
r1N5/1R1qq2k/1pb2Q1b/1P1B1n1b/pNKq2r1/2RB2pn/1Q3Bb1/N4r2 w - - 0 1 illegal: No possible last move, all moves rejected
2bkN3/4b2q/1p2q1BP/1pr1r1Q1/q1B1n2n/2Bp2n1/Q3R3/n1N1NKRr w - - 0 1 legal: proof: f4 c5 g4 h5 b4 hxg4 d4 cxd4 b5 e5 b6 exf4 Kf2 axb6 Ke1 b5 e4 g5 c4 f5 a4 d5 h4 f3 e5 g3 c5 f2+ Ke2 g2 e6 g4 e7 g3 c6 d3+ Kf3 d2 Ke2 b6 h5 d4 c7 f4 a5 d3+ Kf3 Qd7 h6 Na6 Ra3 Nb4 a6 Qe6 a7 Nc2 Ra1 Nf6 Ra2 Na1 Be2 f1N Nc3 Ne4 Bb2 Ne3 Qc2 d1Q Qd2 Qa4 Qc1 Kd7 e8N Nf5 Bd1 Rh7 Nce2 Be7 Bc3 Rg7 Bb3 Rg5 Bc4 Rb8 Nh3 g1Q a8Q g2 Qa5 Qd4 Rg1 Qg7 Qd2 Nfg3 Nc1 Re5 Ng5 Qh7 Qe3 Nf5 Re2 Ra8 Rd1 g1N+ Kg2 f3+ Kf1 f2 Nf3 Nh4 Ne1 Rb8 Qg5 Rc5 Red2 Ne2 Qa7 Ba6 c8B+ Kd8 Bd7 Re5 Rc2 Rc8 Ra2 Rcc5 Rb2 Qg4 Bf5 Bc8 Bg6 Qe6 Qa5 Qb4 Qa2 Qa4 Bd2 Nf5 Bc3 N2g3+ Kg2 f1R Rf2 Rh1 Re2 Rh3 Kg1 Nh5 Kf1 Nh4 Rg2 Rh2 Rg1 Rh3 Rd2 Rh1 Re2 Nhg3+
kn6/2BN2n1/Ppqr1rNb/8/nBr1pQ1b/1Qb3NR/p2R2Bq/1K1b4 w - - 0 1 illegal: No possible last move, all moves rejected
1q1QQ2R/1n4Np/rq1QBr2/1p1N1nK1/2Rb1n1n/3B4/kPb1rpN1/6q1 w - - 0 1 illegal: No proof kernel
3K1nbB/4r1pr/QR1bBpPR/1q5n/2Qq1n2/2Nb1b2/R3r1pk/2Q1N3 w - - 0 1 legal: proof: a4 b5 d4 bxa4 f4 c5 g4 cxd4 g5 h6 f5 e6 g6 exf5 Bg5 hxg5 Qd2 f4 Qd3 Qf6 Qd1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 a5 e4 d5 c4 f3 h4 Kf4 b4 Kg3 e5 f2 e6 g4 e7 a3 e8R a2 c5 a4 h5 a3 h6 d3 c6 d4 c7 d2 Kb6 d3 h7 Nf6 b5 Qd7 Rh4 Ra7 Qc2 d1N Rh6 d2 Qc5 Nb2 Qc4 d1B Qd5 Bf3 Re6 Bd6 Qd1 Nh5 Bd3 f1B Re2 f6 Bc4 Nd3 Be6 Ndf4 Rb2 Bd3 Nc3 Bcb7 c8Q Bbd5 Rbb1 Kh2 Qc4 g3 Qc1 g2 Rb2 Re8 h8B Re7 Rab1 a1R Ra2 Ra4 Rb4 Rb1 Rb3 Rb2 Rb4 Re2 Rbb2 Bb4 Rb3 Qe8 Rb1 Nd7+ Kc7 Ra5 b6 Rb5 b7 Nf8+ Bd7 Bf7 b8Q Bg8 Qb6 Rd5 Qba6 Bd6+ Kc6 Qb8 Be6 Qb4 Rb3 Qa5 Rb6 Qb4 Rc2 a2 Rd2 a1Q Ra2 Bc7 Kb7 Qb5 Kc8 Bd6 Kd8 Rg5 Nh3 Rg3 Nf2 Rg4 Qc6 Rh4 Qc4 Bde4 Nd3 Rh3 Nd1 Qd4 Ne1 Bd3 Nc3 Ng3 Rh5 Rh4 Rc5 Rh7 Rh5+ Nh3 Rh6 Nh5 Bc8 N3f4 Bd7 Rf7 Be6 Re7
b2B2Bn/2nNP2K/1Qb2Qb1/1R1qb1p1/2r2pR1/nB1kr3/4RpN1/r5q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 b3 e5 b2 h6 g2 h7 d2 c6 b4 c7 b3 e6 Na6 e7 Bb7 c8B Bg7 Rh2 Nc7 Bc4 Be5 Be6 Bc6 Nh3 g1Q Ra5 Rc8 a8R Nh6 Rb5 Nf7 Na3 b1B Ra4 b2 Qb3 d1R Bd2 Bc2 Re2 Ra1 Ba5 b1N Qb4 Qd6 Ba2+ Kd3 Nc4 Na3 Nb6 d4+ Bed5 Rhd8 Nd7 Nh8 Bb3 Rf8 Qc5 Ba8 Qc6 Rf6 Bg8 Re6 Re4 Qd5 Qb6 Na6 Rab4 Rc4 Ra4 Nc7 Rab4 Ng6 h8Q Bb1 Qf6 Nh8 Bh7 Kd2 Bg8 d3 Nf2 Kc3 Ng4 d2 Ne3 Kd3 Ng2 Bc2 Ba2 Ba4 Rb2 d1B+ Re2 Bdc2 Bb3 Ne8 Qa6 Bb1 Bd8 Nc7 Qb6 Bc2 Rc5 B4c6 Rb5 Qc1 Kf2 f3 Rg4 Bb2 Kg3 f2 Rh4 f4+ Kg4 Bd4 Kh5 Qg1 Kh6 Re3 Rg4 Be5 Kg7 Kc3 Kh6 Bg6 Kg7 Kd3 Kh6 Bf7 Kh7 Bg6+
n1n3K1/1bN1p1q1/4R1r1/3B3r/bBR1Bqp1/2pn3n/kNPr1bQ1/4R2Q w - - 0 1 illegal: No possible last move, all moves rejected
3bkr1K/1N1qp1Rb/5n2/1R3nrp/RQ1r1pbB/PQ1B1N2/4qr2/1Bq5 w - - 0 1 illegal: No proof kernel
kr2QrR1/1N1bpN2/2Q1Pp2/1Rn1r3/2b2bb1/1nB1Q3/pqB5/2n1RqK1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 g5 d6 gxf4 Bh3 cxd6 Bg2 d5 Bf1 d4 Kf2 d5 c4 Kd7 b4 Kc7 h4 Kb7 e4 a5 b5 f6 c5 f3 e5 g3+ Ke1 f2+ Ke2 d3+ Ke3 g2 h5 d2 e6 d4+ Kf3 d3 b6 a3 h6 a4 h7 a2 Be2 f1B Kf2 a3 Bg4 Nh6 Nc3 Nd7 Bf5 Rb8 c6+ Ka8 c7 Nf7 Qb3 d1B Rb1 a1N Nb5 a2 Bb2 d2 Bc3 Nc5 Nf3 g1R Ne5 Rg5 Bc2 Bg4 Kg1 d1Q Nd6 Bh6 Nb7 Rf8 h8R Q8d2 Rg8 Bd7 c8Q Rh5 Qc7 Bf4 Qc6 Qf3 Re1 Bc4 Rh3 Rf5 Rh5 Qc1 Rhg5 Qb2 Rh5 Nh6 Nf7 Re5 Rhg5 Nf5 Rh5 Ng3 Qa3+ Na4 Qac5 Nb3 Qe3 Nac5 Rf5 Nc1 Rfg5 N5b3 Rf5 Re4 Rb5 Re5 Na5+ Rb7 Bd2 Ne4 Bb4 Kb8 Bc3 Ra7 b7 Nec5 Rg7 Ra6 Rg6 Ka7 Rg8 Rb6 b8Q+ Ka6 Qe8 Ka7 Nd6 Rb8 Nab7 Ka8 Nf7 Qf1+
n1Q1B3/1rNpq3/1b1n3p/NP2KpBr/b1Q1R1Rb/5k2/Rn6/2q1b1rN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 Kg4 c4 a5 c5 f5+ Kd5 f3 e4 a3 e5 d3 g3 a2 c6 d2 c7 h3 e6 h2 e7 a4 e8R a3 Qb3 d1N Kd4 f2 Bb2 Na6 Nd2 Bb7 c8N Nf6 Bc1 Nc7 Qc4 Be7 Nb6 Rb8 Nb3 Nb2 Nd5 Ne4 Na5 Bh4 Ne2 Bc6 Ke5 Na8 Rg1 h1Q Bg5 Kf3 g4 Nd6 Nc7 Ba4 b5 Rb7 Rg2 Qg1 Ng3 Qh1 Bd3 Qc1 Nh1 f1R Bc2 Rg1 Bb3 h6 Rg8 Rh7 Re2 Rg7 Re4 Rg6 Be3 Qf8 g5 Rg7 g6 Qe7+ Kd4 Rg5 Kd5 Rh5 Bg5 Rf7 g7 Be1 Rb1 a1B Kd4 a2 Kd5 Nd3 Rb2 Rf6 Rc2 Bd4 Rce2 a1B Ra2 Nb2 Bd1+ Kg2 Bg4 Bb6 Be2 Rh2 Bh5 Bh4 Be8 Rg6 Qc5 Kf3 Qc4 Qf8 Ke5 Qf7 Bf6 Rg1 Bg5 Rh3 Rh8 Be1 g8Q Rh5 Rh7 Qf8 Rg7 Qf7 Bf4 Bh4 Rg4 Qh7 Bg5 Qe7+ Kd5 Nd1 Qh8 Bc3 Qf8 Bce1 Qh8 Qf8 Ke5 Qe7+ Qe6 Qc4 Bf7 Bc2 Qc8 Nb2 Bg6 Ba4 Be8 Qf7 Qd5 Qc1 Qc4 Qe7+
1qN1Q3/3pBrpn/Q6R/B4n1p/RRr1r2P/1q6/3NBkrK/1nbb1q2 w - - 0 1 legal: proof: d4 e5 g4 exd4 c4 f5 b4 fxg4 b5 a6 Nc3 axb5 Nb1 bxc4 Qa4 c3 Qb3 Ra4 Qd1 Ra8 f4 Ke7 Kf2 Ke6 Kg2 Kd5 h4 Ke4 a4 c5 a5 h5 f5 b5 f6 g3 e3 b4 a6 c4 a7 b3 f7 c2 Ra3 b2 Qe2 d3 Bd2 c1R Ra6 c3 Rf6 c2 Qe1 Nc6 Nf3 Ba6 Rh3 Ba3 f8B Qb8 Nd4 Nce7 Qe2 Nf5 Rf7 Nf6 Rh1 Nh7 Ba5 d2 Be7 d1Q Nb5 Rf8 Rf6 Rf7 Rh6 Bb7 Kh3 g2 Qd3+ Kf3 e4+ Kf2 e5 g1R e6 Bd5 Nd6 Bb3 Nd2 b1N Be2 Rg3+ Kh2 Qf1 Qb5 Re1 Qa4 c1Q Nc8 Qc2 Qb5 Qb2 Qa6 Bd1 Rg1 Q8b3 Rh1 Rb8 a8R Rb4 Rb8 Rc4 Rb4 Qe5 Ra4 Bc1 Rg1 Rf3+ Rg3 Qeb5 Rg4 Rg3 Re4 Qb8 Rg4 Rcc3 Rgb4 Rc2 Bd6 Rc6 e7 Rcc3 e8Q Rc4 Bg4 Ree7 Be2 Ree4 Be7 Rg2#
n1NQ2NB/2p1R2R/3q1rP1/3q4/p1R1Qpnb/3BqN2/1rb1b2b/r2k1K2 w - - 0 1 illegal: No possible last move
3r1rr1/1P2R1pq/RQn2k2/nBQb2qr/p1Np2Bb/3Q2N1/1b3K1B/1n6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 Ke7 e4 a5 b4 d5 h4 f5 h5 d3 e5 d2+ Ke2 f3+ Ke3 f2 h6 g3 e6 g2 c5 a3 b5 a4 h7 a2 b6 f4+ Kf3 Kf6 b7 Ne7 Rh3 Nec6 e7 Na5 e8B Nbc6 Na3 Be7 Bb5 f1N Kf2 f3 Bd7 Qg8 Bg4 Be6 Ne2 d4 Rg3 Bd5 Nc4 Rd8 Rh3 g1R Ng3 Rh1 Rb1 a1B Rh6+ Kf7 Qc2 d1Q Qd3 Bb2 Bf4 Nd2 Ra1 Qb3 Re1 Bh4 Re2 Nb1 Re7+ Kf8 Bc7 Qc3 Bb8 Qc1 Bd6 Qg5 Rg6 Nb8 c6 Rh3 c7 Nbc6 c8Q Rh2+ Kf1 f2 Qc7 Rh3 Qb6 Rh1+ Ke2 f1R Bf4 Qe6+ Be5 Rg8 h8Q Qef5 Qh5 Rf3 Rge6 Qh7 Bb8 Qf6 Qe5 Qg5 Qd6 Rf6 Qdc5 Rff1 Ne4 Rf5 Bh2 Rhf1 Ng3 R1f3 Re8+ Kf7 R6e7+ Kf6 Ke1 Rd7 Ra8 Rdd8 Ra6 Rf2 Re4 Re5 Re2 Rff5 Re3 Ree8 Re7 Ref8 Ke2 Qgh6 Ke1 Rh5 Kf2 Qg5
q1b1r3/1pnqn3/Rq1b1B1q/1r1B4/1Np1Kp2/4R1b1/QR1PrkB1/Q3N3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Ke6 a4 Kd5 g4 h5 e3 c5 a5 f5 g5 b3 g6 h3 a6 b2 a7 c3 g7 c2 Qe2 c4 Qh2 h4 Qf2 h2 Qg3 h3 Qe1 Qb6 Qf2 Bd6 Ra4 Na6 Ne2 Nc7 Bg2 Ne7 Qf1 Re8 Na3 b1R Ng1 Rb5 Bb2 c1B Bf6 Bb2 Nc2 Bbe5 Qa1 Rb8 Ra6 Ra8 Kf2+ f3 g8B+ Ke4 Nb4 Rb8 a8Q Bg3+ Kf1 f4 Bd5+ Kf5 e4+ Kg4 e5 f2 Qa7 Ra8 Ke2 Rb8 Kd1 f1Q+ Kc2 Qff2 e6 Qfd4 Nf3 Ra8 Rg1 h1Q Rb1 h2 Ne1 Qhg1 Qa2 h1Q Rb2 Qh6 Kd1 Qa5 Ke2 Qdb6 Qa1 Qc6 Qa2 Qd7 Qa1 Qgb6 Qa2 Kh5 Kf3 Rb8 Ke4 Kg4 Bh1 Kh3 Bf3 Kh2 Bg2 Kg1 Qa1 Nf5 e7 Qa2 Ra3 Kf2 Qa4 Ra8 Re3 Rb8 Qb3 Qa8 Qba2 Rf8 e8R Ne7 Bd4 Rf5 Bf6 Rh5 Rg8 Rh2 Rg6 Kg1 Bf3 Re2 Bg2 Kf2 Rg5 Ra5 Bf7 Rc5 Rd5 Ra5 Rd3 Rb5 Rdb3 Qg4 Ra3 Bd7 Ra7 Re8 Bd5 Bc8 Ra6 Qd7
2r2b1N/Qp1b2N1/n3r1K1/2R1bp2/q2q1N1B/P1qBn3/1QrBR1p1/4rk2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Ke5 h4 d5 c5 f5 a3 g5 c6 f3 Kg3 f2 h5 b3 c7 d3 h6 Kd4 h7 d2 e5 Ke3 e6 b2 e7 d4 e8Q+ Ne7 Qda4 d3 Qh5 Qd4 Qa6 Qc3 Qa5 Nd5 Ra2 Na6 Qh2 Bd7 Nf3 Re8 c8N Re6 Nh4 Rg8 Be2 f1R h8B Re1 Bf6 Rh8 Nd6 Rg8 Kg2 g3 Kh3 g2 Ne8 Kf2 Ng7 d1Q Ng6 g4+ Kh4 g3 Kg5 d2 Nh8 Qa4 Bd3 d1Q Kg6 Ne3 Bd2 Qad4 Qb6 Q1a4 Qa7 Rc1 Re1 Rc2 Re2+ Kf1 Ra1 g1B Ra2 Qcc4 Nc3 b1R Nd5 Re1 Nf4 Qcc3 Rb2 Bf2 Rb5 g2 Rc5 Bg3 Qh6 Re8 Bh4 Bh2 Qg5 Re6+ Qf6 Bg3 Nh3 Be5 Nf4 Re7 Qfb6 Re8 Qb2 Re6+ Kg5 Bfd6 Kh5 Rc8 Kg5 Bf8 Kh5 Ree8 Kg6 Re6+
b1N3B1/rpn1r1bQ/1Q3bq1/1p5b/kN1B1KqP/n1qp1QR1/4BR2/7r w - - 0 1 illegal: Other
rrnkN2Q/1pnB1q1N/R2npR2/1qr4Q/4n1q1/B1b1p3/1PR5/N4b1K w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 a5 c5 a6 cxd4 Kd2 Qa5+ Ke2 Qxa6+ Ke1 Qa2 f4 h5 Kf2 a5 g4 d5 Kg2 a4 c4 d3 c5 a3 f5 d4 f6 h3+ Kh2 e3 g5 d2 g6 d3 g7 h4 c6 Na6 Qa4 d1R Qd4 d2 c7 Be6 c8N Nc7 Qa7 Bc4 Qd4 e6 Qg4 Ne7 g8Q Qb3 Qe4 a2 Qg5 Bg7 f7+ Kd7 Nd6 Rhb8 f8R Nc8 Bg2 Qb5 Qh7 Rf1 Rf2 d1Q Bd2 Qg4 Bb4 Rc1 Qgh5 Kd8 Ne8 Bd3 Re2 Rc5 Na3 Bc3 Qh8 Bc4 Rf1 a1Q Nc2 Bd3 Rf4 Qf1 Nf3 Bc4 Ng5 Qf2 Re4 Qf7 Rf4 Bd3 Nh7 Bc4 Kg1 h2+ Kf1 h3 Bc6 Bd3 Bd7 Bc4 Rg1 h1N Rf6 Nf2 Rh1 h2 Rg1 Qd4 Kg2 h1N Ra1 Ng3 Ra6 Nf5 Ba3 Nfd6 Na1 Qg4+ Kh2 Nfe4 Kh1 Bd3 Rc2 Bf1
5r1K/qpq5/bP1b2Bp/1nBN3Q/3q2nR/r1n1p1Rq/2B4Q/N1kN2b1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 c5 b5 cxd4 Qe2 f5 Qd2 fxe4 Qb4 axb4 Ke2 Kf7 f4 Kf6 a4 Kf5 c4 e5 c5 d5 c6 d3+ Ke3 d2 c7 d1Q a5 h3 b6 h6 a6 b3 a7 h2 Nc3 b2 Nge2 b1N Ba3 Na6 Nc1 Bd6 Nb3 Bd7 c8N Nf6 Bc5 Bb5 Ra3 Nc7 Bd3 Ba6 Na1 Nb5 Bc2 Rf8 Ne7+ Kg4 g3 Qc7 f5 Kg5 g4 d4+ Kf2 Kf4 g5 d3 g6 d2 g7 Rf7 g8B e3+ Kg2 e4 Kh3 e2 Kh4 Qg1 Nd1 e1B+ Rg3 Bf2 Bh7 N1c3 Bg6 Ng4 Kh5 Qf1 f6 Bg1 Rg2 e3 Nd5+ Kf3 Rg3+ Ke2 Nf2 Qg2 Nd1 Rff8 f7 Qf3 Bgd3+ Ke1 Kg6 Qf1 Kg7 Qh3 Bg6 Ke2 Nb2 d1Q Kh7 Qd3 Nd1 Kd2 Kg7 Qd4+ Kh7 Rab8 a8Q Kc1 Qa7 Rbe8 Qb8 Re6 Qe8 Rf6 Qe5 Ra8 Qh5 Qb8 f8Q Qa7 Rf3 Qg3 Kh8 Qge5 Rg3 Qe7 Bh7 Qc7 Qb8 Bf2 Re1 h1Q Bhg6 Qg2 Rh1 Bg1 Rh4 Qh3 Qg8 Re8 Qf8 Re5 Qb8 Ref5 Ba4 Rf2 Bb3 Ra2 Bbc2 Ra3 Qd8 Be7 Qd6 Bf8 Qf4 Be7 Qf2 Bd6 Qh2 Rf8#
k1bn1bQ1/1p1Pq3/3QN2p/p2n1b2/6Br/2qRB1rR/3Rn1Q1/N1qq2K1 w - - 0 1 illegal: No possible last move
3bKbqQ/p3R3/1N4R1/2k4n/nr1nnB2/P1q3BQ/p3p1q1/R1rN1Q1b w - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 c5 Rh3 cxd4 Rh1 g5 a3 gxh4 Qg4 b5 Bc4 b4 Ba2 b3 Qd1 bxa2 Kd2 e5 g4 Ke7 b4 Kd6 c4 h5 f4 h3 g5 e3+ Kd3 e4+ Ke2 d3+ Kf1 h4 g6 d2 Ke2 h2 f5 h3 f6 Bb7 g7 Rh4 b5 Kc5 f7 d5 b6 d4 Qe1 d1N Qf1 Nb2 Nc3 Nf6 g8R Nh5 Nf3 Na4 Nd2 Nc6 Rg6 Rc8 Nd1 Ba8 Rhg1 h1Q b7 h2 b8B Qe8 Bg3 Qg2+ Nf2 Qh3 Nd1 h1Q Re6 Qd8 Rg2 Qg5 Re7 Qg8 Rg1 Bg7 f8Q d3+ Ke1 e2 Kf2 e1B+ Ke3 Rg4 Q8f6 Bf8 Qh8 Nd4 Rg2 Kb6 c5+ Kc6 Rg1 Q1g2 Nc4 Ba5 Nb6 Kb5 c6 Kc5 c7 d2 Qff6 Rb8 c8Q+ Bc6 Na8 Rb4 Qf1 Bd8 Nb6 Rg6 Qg4 Bd5 Qgf5 Rc6 Qfh7 Qc8 Qhf5 Qc7 Qh3 Qh2 Nb2 Re6 Qff5 Kb5 Be5 Rc6 Rg6 Qh1 Bg3 d1N+ Kd2 e3+ Kd3 e2 Qff1 Bg2 Bcf4 Ndc3 Nd1 Qh2 Ke3 Bh1 Kd3 Qg2 Ke3 Nb1 Kd3 Nd2 Ke3 N2f3 Kd3 Qc8 Ke4 Ng5+ Ke5 Rc1 Kd6 Qc3 Kd7 Ne4 Ke8 Kc5
k4qQB/pqb1N2r/5pB1/K2n1bn1/1n3Bb1/n1P1Q1N1/1R4pr/R2q1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 h4 d5 e4 Kd7 b4 Kc7 e5 Kb7 b5 g3 b6 g2 h5 d3 Kc3 d4+ Kc4 a3 Kb5 f3 c3 g4 e6 g3 e7 f2 e8Q f6 h6 d2 h7 a2 Bb2 d3 Qe6 Nc6 Qf7+ Nge7 Qdb3 d1B Nf3 g1N Rh2 d2 Ne1 Nb4 Qg8 Nh3 Ng2 Ned5 Nh4 Bf5 Bc1 Ng5 Ka5 Bd6 Bd3 f1Q Qe8 Qg2 Qe3 Qg8 Bc2 Kb8 b7 Bdg4 Qc4 d1Q Nd2 Bf4 Nf1 Qf8 Bd3 Qe4 Rb2 g2 Qb3 Ne7 Qg8 Ned5 Qh3 Be5 Bf4 Bd6 Qe3 Be5 Rab1 a1N Rc1 Nac2 Ra1 Na3 Bc2 Kc7 b8N Kb7 Nc6 Rd8 Bd3 Rd7 Ne7 Ka8 Bb1 Nc7 Bd3 Qb7 Bb1 Ncd5 Bc2 Be6 Nhf5 Bb8 N5g3 Bd6 Bg6 Bef5 Qb6 Bc7 Qe6 Rg8 h8B Rg7 Qg8 Rh7 Qf7 Rh2 Qg8 Bd6 Qe3 Be5 Nc6 Rdh7 Ne7 Bc7+
1b5B/p4n1p/1N4rk/QB1KQ2r/3NnqRn/1n4bP/1qBp4/1b2NR1q w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxb4 a4 bxa4 g5 e5 g6 exd4 Qd3 fxg6 Qd2 g5 Qd1 g4 Kd2 Kf7 Kd3 Kg6 Ke4 d5+ Ke5 g3 c4 d3 f4 d4 e4 b3 c5 b2 h3 d2 f5+ Kh6 c6 g5 f6 a3 f7 d3 c7 a2 Qe1 d1Q Nc3 b1Q Na4 d2 Bg2 g4 Nc5 Na6 Qe3+ Qg5+ Kd4 Qb2+ Qc3 Qf4 Nd7 Nc5 Kc4 Rb8 Nb6 Bd6 f8N Bf5 Bf1 g2 c8B g3 Nf3 g1B Kd5 g2 e5 Ne4 e6 Bf2 e7 g1N e8Q Bg3 Ne1 Nf3 Bb5 Nh4 Rg1 Rb7 Qa3 Bb8 Qa5 Re7 Rb1 a1N Ne6 Nb3 Nd4 Qdf3 Bb7 Qh1 Rg2 Rg7 Qe5 Rg5 Bc8 Bg6 Bf5 Rh5 Ra1 Nd6 Bc2 Nf7 Bd1 Bb1 Bc2 Qc3 Bb2 Nf6+ Ke6 Ne4 Kd5 Rg8 Rg1 Bh2 Rg4 Bg3 Ne6 Qhf1 Ng2 Q4f3 Qf5 Ba2 Rc1 Q1f2 Rf1 Rg6 Ne1 Bb1 Ba1 Qf4 Bb2 Qcf3 Bh8 Qh1 Qe5 Qd4+ Kc6 Qa4 Kd5 Qa1 Nd4 Qb2
B1q1b1r1/p1p5/8/4NnBb/1PB1prQN/1rk3K1/3bQnRR/q3Nbn1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kd7 g4 Ke6 b4 Kd5 f4 h5 Kf2 e5 f5 h3 g5 h2 f6 c3 g6 e3+ Kg3 e4 f7 h4+ Kf4 c2 g7 h3 Ra3 e2 Kg3 Kc4 d5 Nh6 g8B Ng4 d6 Bh6 d7 Nf2 Bh7 Nc6 f8N Bd2 Rf3 a3 Rf5 a2 Nf3 a1Q Bg2 e1N Rf1 h1B Rg5 h2 Ng6 Nd4 Nfh4 Rf8 Qg4 Nef3 Na3+ Kc3 Ne5 Ng1 Bg8 Rf4 Bd5 Qh8 d8Q Bd7 Qc8 Be8 Qa6 Rc8 Bh3 Bf3 Ba8 h1B Qe2 Bhg2 Rd1 Bf1 Rh5 Be1 Be3 c1R Rd2 Qf8 Nc2 Rb1 Rh7 Rb3 Rh6 Rf7 Bg5 Rf4 Qh5 Qf6 Be6 Nd3+ Qf2 Bg6 Ng2 Rg8 Bc4 Be8 Re2 Bd2 Nce1 Qe6 Qh3 Bfh5 Qg4 Bhf7 Rh2 Qc8 Nh4 Bh5 Qff3 Qa5 Reg2 Qa1 Qd1 Nf2 Qde2 Nf5+
kB2B3/1b1r1pPQ/1r1b1ppN/1Q1r3Q/3nr1N1/1qrNK3/1r1R4/nR5b w - - 0 1 illegal: No proof kernel
r3RN2/pKp2rN1/2rr4/P1b4B/pRr2Q2/4b2n/Qq6/Qrk1nRBb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 a5 dxc4 Ra2 e5 Qa4 exf4 Ra1 bxa4 Kf2 Kd7 Kf3 Ke6 Ke4 h5 b4 h3 d4 h2 g4 c3 b5 f3 b6 c2 e3 h4 b7 f2 g5 h3 g6 Rh6 g7 Nc6 b8Q Nge7 g8Q Ne5 Nf3 N7g6 Nc3 Bb7+ Nd5 Nf4 Be2 f1R Nh4 Ned3 Bh5 Rd1 Rf1 h1R Ng6 h2 Rb1 Qf6 Rb4 Bc5 Qbf8 Ne1 Qfg7 Nh3 Nf8+ Kd6 Qg3+ Kc6 Qf4 Rd2 Bb2 c1B Ba1 Qg7 Nf6 Rg1 Qh8 h1R Ne8 Rg4 Qg8 Qh8 Ng7 f5+ Ke5 Rd1 e4 Be3 Qa2 Rd6 Bc3 Rb1 Bd2 Rh2 Bc1 Rc2 Bd2 Bb6 d5+ Kc5 Qa1 Rc4 Bc1 Rc6 d6 Rg6 d7 Rh6 d8Q Rhd6 Qf2 f4 Qfa2 f3 Qf6 f2 Qf3 Bg5 Bf4 Bh6 Bh2 Bc1 Qf4 Be3 Rh1 f1R Rg1 Rf2 Rf1 Rf3 Bg1 Rf2 Kf5 Rf3 e5 Kd5 e6 Bbc5 e7 Rf2 Nge6 Qb2 e8R Rf3 Ng7 Rf2 Qf3+ Kd4 Qf4+ Kc3 Ke5 Kc2+ Qd4 Rg6 Kd5 Rf7 Qf4 Kc1 Qd6 Rcg4 Qf4 Rgf6 Kc4 Rcd6 Kb5 Bc6+ Ka6 Bh1+ Rb6 Rc6 Kb7 Rfd6 Rb4 Rh4 Qf5 Re4 Qf4 Rc4
5n1N/1nQ1NRb1/5BR1/n4q1Q/p1n3np/1bP2brB/1kp1N2r/1b4KQ w - - 0 1 illegal: No proof kernel
K1Q5/r3Q3/1B2Br1N/3rPpBp/bRnq1p2/1R1r1n1Q/1n1kn2N/2n3b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 a4 h5 g4 b5 g5 f5+ Ke5 c3 d4+ Kc4 g6 c5 a5 c2 a6 b3 d5 h3 d6 b2 a7 b4 d7 h2 g7 b3 Ra5 Na6 Qd6 Nf6 g8Q+ Nd5 Qg2 Nb6 Rb5 Rh6 Be3 c1N Ra5 Nb4 Nd2+ Kc3 Ra6 b1R Ngf3 c4 Qe7 b2 Qh3 Rf6 Ra4 Ba6 Bf2 Bb5 e4 Ne2 Ng5+ Kc2 Ra3 c3 Ndf3 Rd1 Rb3 b1N Nf7 Nd2 Nh6 Ba4 Bh4 Kc1 Bg5 c2 Rg1 h1R Nh2 Bg7 Bg2 Qh8 d8B Bf8 Rf1 Rg1 Bf3 Rg3 Bh1 Rd3 Bc7 Rb8 a8Q Rb7 Qc8 Ra7 Rg1 Na2 Rb4 Nac3 Rg3 Qg7 Qed8 Bc5 Qe7 Bg1 Bf3 Nbd5 Bb6 Ne3 Bg2 Nd4 Rf3 Nce2 Bf1 Nec4+ Kd5 Nb2 e5 Ndc4 Rg3 Kd2 Re3 Ra3 Reb3 c1N Bg2 Qg6 Kc5 Qe8 Bd5 Qd8 Be6 Nf3+ Re3 Bc2 Kc6 Qd4 Reb3 R3a5 Qg2 Rd5 Qh3 Raa5 Kb7 Ra8 Re3 Ba4 Reb3 Ra7+ Kb8 Ke1 Bd7 Rd3 Be6 Rc7 Ka8 Kd2 Qh7 Rcd7 Qe7 Ra7+
2bq1BN1/K5nn/1n2nQ2/1P1Q2q1/QbR3p1/rR1N2B1/Bnp2pr1/n5k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 e4 Ke6 b4 Ke5 h4 Kd4 e5 c5 e6 f5 b5 g5 e7 a5 e8Q a3 h5 a2 h6 f3 d3 f4 h7 g3+ Ke1 f2+ Kd2 g2 Qe7 f3 Bb2+ c3+ Kc2 c4 Qb4 Ke3 d4 a4 d5 a3 d6 Nf6 d7 Rg8 h8Q Nh7 Bd3 f1N Qf6 Kf2 Rh4 Ng3 Ne2 g1Q Qa4 Bb4 Nf4 Nf5 Nd2 Ng7 Rb1 Qg4 Bf1 Kg1 Ne4 f2 Qd5 Qg3 Nd3 a1N+ Kc1 a2 Ba3 c2 Rb3 Ra6 Kb2 c1N Bh3 Ra8 Be6 Nc2 Rg4 a1N Rf4 Qe7 d8B Nd7 Bc7 Nd4 Rg4 Qg2 Bg3 Nb6 Bf7 Qd8 Rf4 Bd6 Kc3 Nde6 Bc5 Bf8 Kb4 c3 Bd6 c2 Be7 Nd4 Kc5 Nde6+ Kc6 Ra5 Ba3 Bb4 Rh4 Bd7+ Kb7 Bc8+ Kb8 Be1 Bf8 Bb4 Qe7 Ra6 Nf6 Ra5 Rc4 Ra7 Ne5 Nd3 Qed6 Nb2 Nd3 Rh8 Ng8 g4 Qd4 Qd5 Qf6 Qg5 Qd5 Be1 Qb4 Ra3 Qa4 Bc3 Ka7 Bb4 Qfe5 Nf6 Qed4 Rh2 Q4e5 Nh7 Qf6 Rg2 Rc5 N2c4 Qde5 Qh6 Rc3 Nb2 Qd6 Nf4 Ba2 Qg6 R5c4 Qg5 Rb3 Nfe6 Qc6 Bc5 Qd5 Bb4
qR2rQK1/N1B2B2/1QN1n1b1/1P2nk2/p7/1p1b1b1N/1nbp1R2/rnQ1b3 w - - 0 1 illegal: No proof kernel
r2rB3/QbN2B2/1N1p3b/Q3B1rQ/1R2q3/2Pkrn2/pn1r1np1/1R3K1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 e4 Ke7 h4 Kf6 b4 Ke5 h5 g5 c3 a5 b5 f5 h6 f3 h7 f4 b6 g3 b7 f2+ Ke2 g2 Qe1 d3+ Kd2 a3 Nh3 g1R Kd1 a2 Be2 f1R Nd2 a4 Nf2 d6 Nh3 a3 Nb1 g4 Ng5 f3 Rh5 d2 Rh4 f2 Bd3 Nd7 Ke2 d1N b8Q Qe8 Qa7 Nb2 Rh5 Nh6 Rh1 Bb7 Nd2 Rg3 Rh2 Rfg1 Bc4 f1N Rb1 a1R Bf7 a2 Rh4 Re3+ Kf2 Qe7 Ne6 Ng3 Nc7 Bg7 Qd1 Rhd8 h8Q Kf4 Qh7 Ne5 Qda4 Nf3 Nc4 Rd1 e5 Nh1+ Kg2 Rd2+ Kf1 Qe8 Qh8 Ke4 e6 Kd3 e7 g3 Q4a6 Ng4 Qa5 Ngf2 Qhh5 Bh6 Nb6 Re5 Rf4 Rg5 Rb4 Qc6 e8B Qe4 Qf5 Rc2 Bf4 Rd2 Re1 Rad1 Qfa5 Re2 Be5 Rdd2 Rd1 Re3 Rb1 g2#
1n6/3nB2n/Bkp2RP1/R2rQ1Kb/2Qn4/p1bq2pN/N6n/R1rN1nq1 w - - 0 1 illegal: No proof kernel
3K1Q2/k1r1RnB1/bp6/pb2P3/4q2r/1RQBbn1R/nbbpNn2/B2N4 w - - 0 1 illegal: No proof kernel
2NN1N2/rnR2Rr1/P4KR1/3pQ1Q1/B4B2/qnr1pk2/2b2p2/b1rbr2b w - - 0 1 illegal: No proof kernel
2br2B1/1k1brqnb/pB3bQb/1N3KQ1/1Qr2np1/6NB/4RpP1/4R2r w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 a5 Qxh4+ Kd2 Qh2 a6 bxa6 Ke1 a5 Qd2 a4 Qd3 Bc5 Qd1 Bf8 Kd2 Kd8 Kd3 Kc7 Ke4 g5 c4 f5+ Ke5 d5 b4 h5 e4 a3 b5 d3 c5 f3+ Bf4 d4 c6 h4 Qb3 h3 Qd5 a6 Qf7+ Ne7 Nc3 f2 Na4 d2 Bd3 f1R Ne2 d1B Bc2 d3 Bb1 d2 Nb6 a2 Qg6 Rh7 Qe6 Ba4 Ng3 d1B Nc4 Nd5 Qf6 Bdc2 Be3 f4 Na3 Nd7+ Kf5 Rc1 Re1 f3 Re2 f2 b6+ Kb8 c7+ Kb7 Qd8 Re7 Nb5 Bh6 Bd4 Nf4 Be3 Nd3 e5 N7c5+ e6 Qh1 Qg8 h2 Qg6 Qf1 Qh5 h1R Qg4 Rd7 e7 Ne6 e8Q Re7 Qg6 Qe1 Qb4 Qc3 Qf4 Qg7 Qe5 Qf7+ Qef6 Kc6 b7 Rb8 Bb6 Nf4+ Ke5 Ra8 b8Q Be4 Bd3 Rc4 Rae1 Bf5 Bc2 Bd3 Bb3 Be4 Qh5 Bh7 Qhg6 a1B+ Kf5 Bd4 Kg4 Bb2 Qfg7 Bf6 Kf5 Bd7 Qbf8 Rd8 Qgg8 Kb7 Qgg7 Ree8 Qb4 Re7 c8B+ Ka8 Bb7+ Kb8 Bf3 Bc8 Bg4 Kb7 Bh3 g4 Ba2 Bg8 Qg5 Bh7+ Q7g6 Rh2 Nd4 Bad7 Nb5 Rh1 Nh5 Nc7+ Re6 Rc3 Ng3 Qg7 Ke4 Qf8 Re5 Rc5 Bg8 Nce6 Kf5 Rc4 R5e3 Qf7 R3e2 Ng7#
1BQb2b1/RR3Qp1/r4rp1/1QP2B1N/1nr2r1K/q2N4/1r2rpqk/B1n5 w - - 0 1 illegal: No possible last move, all moves rejected
1K5Q/2qNPk2/4RBrr/5n1r/q2p1NQb/r2p1r1b/5np1/QR1B1R1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 d3 c5 f3 Ke3 d4+ Kf2 f4 e5 g3+ Ke1 g2 Kf2 g4 e6 b3 h5 b2 a5 b4 a6 b3 h6 Nf6 a7 Qc7 c6 Be7 Nc3 b1Q h7 b2 Nh3 g1R Nd5 Qc2+ Be2 b1R Nb6 Rb5 Nd7 Rh5 Rb1 Qa4 Qf1 Rg3 Bd1 Bd8 Qe2 Be7 Rf1 Ne4+ Ke1 Bh4 e7 Nf2 Qb2 Kf7 Qa1 Na6 Bd2 Nb4 Bc1 Qb6 c7 Nd5 Bd2 Ne3 Bc1 Bb7 c8Q Nf5 Be3 Qc7 Bc1 Rg8 h8Q Rg6 Be3 Rgh6 Bc1 Rb8 a8R Ba6 Be3 Rb3 Bc1 Bb5 Ra6 Ra3 Re6 Rg1 Qb7 g3 Qe4 g2 Be3 Ng4+ Bf2 Rh1 Bg3 Nf2 Qe2 Bf6 Bh4 Ba6 Qe4 Bc8 Nc5 Ng7 Rg1 Ng4 Ra6 Bf5 Re6 Bg5 Nd7 f2+ Kd2 Qb8 Kc1 Qc7+ Kb2 f3 Re1 f1R Qe2 Bf4 Qe4 Be5 Bf6 Bg3 Qe2 Rg5 Nf4 R1h5 Qe5 f2 Qe2 Rfh1 Qf3 f1R Qe2 Rf3 Rf1 Re3 Qf3 Nf2 Qe2 Qa8 Qf3 Ra5 Kb3 Bh4 Kb4 Ra3 Kb5 Rgg6 Qg3 Bh3+ Qg5 Qc2 Kb6 Qaa4 Kb7 Rf3 Kb8 Nf5 Qg4 Qc7+
2k1b1QQ/3RpRn1/2P1Nnn1/pbQb3r/pR1n4/b2r3B/8/b1BqN1K1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 a5 Kf2 d5 c4 Kd7 g4 h5 b4 h3 b5 d3 f5 d4 g5 e3+ Kg3 e2 Kh2 e1B c5 d2 b6 d3 b7 h4 f6 Rh5 g6 Bg7 f7 Nc6 b8Q Nf6 f8R Ne5 Qc2 d1B Nf3 d2 Ng5 Be2 Ne6 d1N Ba3 Nc3 Nd4 Bb5 Qg2 Ne2 Rg8 Bb4 Ne6 Nd4 Bc1 Ba3 Qf2 Bh8 g7 Ng6 Kg1 h2+ Kg2 Ra6 Nd2 Rd6 Nf3 Bb7 Rg1 h1N Rb1 B7c6 Rf8 Ng3 g8Q Ngf5 Rb4 Ng7 Rf7 h3+ Kh2 Rdd5 Ne1 Rd6 Qa8 Rdd5 Kh1 h2 Bh3 Rd6+ Rg2 Rdd5 Qb8 Rd6 Qf5 Rd5 Qbe5 Kc8 Rd2 Be8 c6 Rd6 Kg2 h1B+ Kg1 Bd5 Qf2 Qb6 Rd1 Qc5 Qb2 Qc2 Qc3 Qb3 Qc5 Rd8 Rd3 Qd1 Qh2 Nb3 Qe3 Bg2 Qe2 Nf5 Qe3 Nd5 Qhe5 Bf6 Qh6 Ng7 Qef4 Ba1 Qf5 Nf6 Qc5 Rd6 Qhh8 Rd8 Re3 Bh1 Ree4 Rd3 Red4 Bg2 Rd6 Nd4 Rd7 Bd5
4qBb1/Qr2p2p/n1Rpb1br/r1B4k/B7/NQr1R1b1/1KPb1nN1/6Q1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 g4 b5 a4 e3+ Kd3 h3 g5 d6 a5 h2 a6 b3 a7 b2 Bh3 b4 Na3 b1R Nb5 b3 Ra6 e2 f5+ Kh5 f6 b2 f7 Qe8 g6 Be6 g7 Nh6 g8Q Ng4 Qe1 Bh6 f8B Bd2 Rc6 Na6 Qf1 e1B Nf3 Bg3 Ne1 Rc8 Rg1 h1R a8Q Ra1 Qf3 b1B Qa7 Ra5 Ng2 Bba2 Re1 Rb8 Ba3 Rb7 Bc5 Bad5 Ke2 d3+ Kd1 Bc4 Qg7 Bg8 Qe3 Bce6 Na3 Bf2 Bd4 Bb4 Kc1 d2+ Kb1 Bgf7 Qb3 Rg8 Kb2 Bd5 Nf4+ Kh4 Rg1 d1B Rg3 Bd2 Bg2 Bde6 Bb6 Rh3 Qd4 Rg6 Rc5 Bg8 Bc6 Rh6 Ba4 Be2 Rc8 Bd3 Ng2+ Kh5 Rc6 Bg6 Bc5 Bfe1 Rd3 Bh4 Qg1 Nf2 Rc3 Rf3 Rd3 Bg3 Rc3 Rf4 Rf3 Rc4 Re3 Rc3
1rb1bb1R/2rppQ2/RNN3n1/2B1q1r1/4p1Q1/r2R3K/B2Pb2B/4b1nk w - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 c4 gxh4 b5 a6 Qc2 axb5 Qb3 bxc4 Qd1 c3 g4 Kf7 f4 Kg6 Kf2 c5 Kg2 h5 a4 b5 a5 c2 g5 Kf5 a6 h3+ Kg3 h2 g6 h4+ Kg2 c4 a7 b4 g7 c3 Na3 h3+ Kg3 b3 Qe1 b2 Bd3 b1B Qd1 Qa5 Bf1 Ba2 Bc4 Qe5 Nb1 Nh6 g8Q Nc6 Qd5 Nf7 Bb2 c1B Be2 c2 Bf1 Nd4 Bc4 Nf3 Bd4 Ba3 Bc5 c1R Ne2 Rc3 Re1 h1B Rf1 Rc1 Nbc3 h2 Na4 Bg2 Re1 h1R Nb6 R1h5 Rf1 Rb8 a8R R8h6 Rh1 Bf1 Ra6 Nh8 Qf7+ Rf6 Rb1 Ng6 Rb3 Bb2 Bd5 Bd4 Rd3 Rc3 Rh4 Ra3 Rh2 Rh7 Bb3 Rg7 Rh8 Be3 Nc3 Bd4 Nb5 Be2 Kh3 Bf2 Na7 Be1 Nc6 Rg8 Ba4 Be6 Bb3 Bd5 Ba2 Bb3 Kg2 Kg4 f5 Rd6 f6 Rd4 Ra4 Rc4 Ra6 Kf4 Kh3 Rc1 Qh7 Bf7 Qg7 Be8 f7 Ngh4 Qh7 Rg5 Qg8 Ng6 Qb3 Bh6 f8B Rc4 Bg7 Rc3 Bf6 Bf8 Qbf7 Rc4 Na7 Rc2 Bd4 Rc7 Nc6 Nh2 Be3+ Kf3 Bf4+ Kf2 Be3+ Kf1 Bc5 Nf3 Qgg7 Nd4 Qgg8 Kg1 Qgg7 Kh1 Qgg8 Qd6 Be5 Nf3 Bh2 Qd4 Qgh7 Qd6 Qh5 Qe5 Qg4 Ng1+
2r1b1r1/1p1r2Pb/1b5Q/R1bBq1NR/p4Q2/2n3RQ/3p3B/kbrnK2N w - - 0 1 illegal: No possible last move, all moves rejected
RK6/p3QnP1/2rp2RN/n1Qb1p2/1q1n3b/1rr4B/n1NR2r1/1kr1BB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 b4 h5 g4 f5 c4 h3 g5 d3 c5 h4 c6 d2 c7 a3 g6 a2 e3 d6 g7 f3 Qa4 d1N Qa5 f2 Qa6 h2 Bh3 Kd3 e4 Kc2 e5 f1R e6 Rf2 e7 Be6 e8Q Nc6 c8B Na5 Nf3 Rg2 Ne5 Rb8+ Qb6 Bd5 Ka6 Be7 b5 Nc3 Rd1 h1R Bd2 Nh6 Be1 Nf7 Qc5 Rb7 Bd7 Qb8 b6 Rf1 Ng4 Rf3 Bc6 Rg8 Qd7 Rc8 Bb5 Rc6 Na3+ Kb2 Rac1 a1N Nh6 N1b3 Nc2 Na2 Bf1 Rc3 Rd2 Nd4 Rcd1 Bg5 Qe7 Bf6 Rf2 Bg5 Rdd2 Kb1 Rfe2 Bf6 Re6 Bg5 Bg4 h3 Rg6 h2 Bh3 h1R Qe4 Rd7 Qe7 Rcc7 b7 Bh4 Qb4+ Rb3 Qa3 Rcc3 Qc5 Qf8 b8R Rc7 Ra8 Qb8 Ng4 Qb4 Nh6 Nc4 Qb6 Rc6 Kb7 Rhg1 Kb8 Na5 Ne3 Rc1 Nc2 Rgg3 Qb5 R1g2 Qb6 Rgc3 Qb5 Nb7 Qc5 Na5+
1b5b/3n1rNN/1k1qR1rp/1n3p1b/BQK1rP2/1n1nb1Qp/5B2/N3RB2 w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 Ke2 Kd7 g4 Kc6 f4 b5 d4 e5 a4 b4 a5 c2 a6 h6 d5+ Kb6 a7 c5 d6 e3 Kd3 h3 d7 e2 g5 e1R g6 e4+ Kc4 b3 g7 e3 Qd6+ Nc6 Qd4 b2 Rh2 e2 Qd1 Nd4 Kc3 c4 Bd2 c1B Ra4 Rh7 Qc2 Nf6 g8Q Nb3 Ra1 Bd6 Qe4 Bb8 Na3 b1N+ Kb4 c3 Nc2 Rg7 Nf3 Rg6 Ng5 Bb2 Nh7 Na3 Qc4 Qc7 d8N Nd7 Ne6 Nb5 Ng7 f5 Rb1 Bb7 Na1 c2 Be3+ Bd4 Rd1 c1B Bf2 Bf3 Qc3 Qd6+ Kc4 Bh5 Qb4 Bce3 Rg2 Rf6 Rg6 Rf7 Re6 Be5 Bg2 Rg1 Bf1 e1N Rb1 Nd3 Rc1 Bc7 Re1 Re8 a8B Rg6 Bf3 Bb8 Bd1 Nbc5 Ba4 Nb3 Qf8 Bb2 Qe7 Be5 Qg5 Bf6 Qg3 Ree7 Ne8 Bh8 Ng7 Re8 Rf6 Re5 Re6 Re4+
3R3r/k1B1nN2/3Np2R/1Q3nB1/prnrr1b1/KQb1P1b1/1p6/1NBb2q1 w - - 0 1 illegal: No proof kernel
4r1b1/n3B2n/nNpq2R1/4KQbk/BP1p1R1p/3r2rb/7Q/r1Rb1NB1 w - - 0 1 illegal: No proof kernel
rB6/Q3NBR1/n1pR1p1K/Qq2N1pr/Nn1Prn2/3bR2b/1b6/1k1bn3 w - - 0 1 illegal: No possible last move, all moves rejected
Q1r2BQ1/1B2Qp2/rr2RbNn/1p1n1RPN/q5n1/3nRbp1/1bb5/2k2K2 w - - 0 1 illegal: No proof kernel
Q1Rn1N2/3pqbp1/NBnQ1R2/2Rr4/Br1r1pr1/1K5B/1Pnbk3/1b2b3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 h4 Kf6 c4 Ke5 Kc2 Ke4 h5 f5 h6 a5 c5 d3+ Kc3 f3 e3 g3 c6 a3 h7 f2 c7 f4 Kb3 a4+ Kc4 g2 Nf3 g1B Qb3 a2 Bh3 f1B Ne1 a3 Nc2 Kf3 e4 Ra4+ Kc3 d2 e5 d1R e6 Nh6 e7 Rdd4 e8R Bb7 c8B Bd3 Qb4 Bd5 Bb7 Bf2 Qd6 Nc6 Be3 Nf7 Nb4 Qe7 Rc8 Nfd8 Na6 Be1+ Nd2+ Ke2 Rc1 Rac4+ Kb3 a1R Nf3 a2 Ng5 Bf7 Ne6 Bb1 Rg1 Rd5 Bf2 Rcd4 Rc5 Rg8 h8Q Bd2 Qh7 Rh8 Qc2 Rh4 Rg6 Rg4 Rf6 Ne5 Qc3 Be3 R5c6 Rc4 Nb8 Bf5 Qc7 Qe8 Qb4 Rad1 Qc5 Bb1 Q5a5 Bb4 Nf8 Qe7 Qa8 Be1 Na6 R1d2 Qd6 a1N+ Ka3 Nc2+ Kb3 Rd1 R6c7 Bc1 Bb6 R1d4 Bc6 Be3 Bb5 B3d2 Rc5 Nec6 Ba4 Rb4+
1nN1q1nQ/2P1R2b/1KR1n1r1/1r1rb3/4b1Np/kB4Bb/p2Q2np/1R4Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 h5 Kb5 a5 c4 f5 e4 d3 b4 a3 g4 a2 g5 h3 g6 d2 g7 f3 Qa4 d1B Qb3 h2 Bg2 f4 Nc3 a4 Nb1 h4 Na3 f2 Ne2 f1N Ng1 f3 Qc2 f2 Nh3 Rh6 Rb1 Qe8 Kb6 a1N b5 Nb3 Qd2+ Nd4 Bb2 Rg6 c5+ Ke6 e5 d5 c6 Ne3 c7 f1B Bf3 Ng2 Nf2 Bd6 Nc4 a3 Ng4 Bc2 Bd1 Be4 Bb3 Bfd3 Rhc1 a2 Bc3 Ke7 e6 Be5 Nd6 Ra5 Bb4 Bd7 Rc6 Bc2 Kb7 Bcd3 b6 Rb5 Bc5 Ne2 Bd4 Nef4 Bf2 d4 Bg3 Bc2 Ka7 d3 b7 Bc8 Qe1 d2 Qe3 d1R Qd2 Nd7 b8Q Bcd3 Qb6 Nb8 Qg1 Bc2 Qe2 Rdd5 Qd2 Nh6 g8Q Bcd3 Qh8 Ng8 Nc4 Bc2 Nb6 Bd7 Rc4 Kd6 e7 Ne6 Rc5 Bcd3 Rcc1 Bc2 Nc8+ Kc6 Qf1 Kc5 Qfd1 Qf7 e8R Qf8 Re7 Qe8 Qd3 Kb4 Qg1 Ka3 Qd2 Bcd3 Rc6 Rg5 Nf6 Bh7 Ng4 Bde4 Rc5 Rg6 Rc6 Nef4 Nf6 Bh3 Ng4 Rbc5 Kb7 Ne6 Kb6 Rb5+
N5nb/1Pr2K2/1B1qR2p/2Np3k/r2Rnnb1/1b1p4/Q4Bnr/1bQR3B w - - 0 1 illegal: No proof kernel
nR4QR/1p1NK1rp/b1k1B3/1q2nb1r/Qpn1N2r/8/1PbR1b2/1r4BQ w - - 0 1 legal: proof: f4 a5 h4 e5 d4 exf4 d5 g5 d6 gxh4 Qd3 cxd6 Qf3 d5 Qc3 d4 Qb4 axb4 Kf2 d5 Kf3 Kd7 Kg4 f3 Kf5 f6 a4 f2 g4 d3 e4 h3 c4 d2 c5 d1R e5 h2 e6+ Kc6 a5 d4 g5 d3 a6 d2 a7 Na6 g6 Qe8 g7 Nc7 Bc4 f1B Nc3 Bd7 Bb3 Ba6 Nf3 Re1 Rf1 h1R Rf2 d1B Ne4 Bc2 Be3 Rb1 Rd2 Rh4 Bg1 Rc8 Ra4 Na8 Ra2 Bd6 Ra1 Bg3 Ne5+ Kc7 c6 Bf2 Bd5 Kb6 c7 Rh5+ Kg4 Ne7 g8Q f5+ Kf4 Nc6 e7 Rh4+ Kg5 f4 Kf6 Bf5 Be6 f3 Nd7+ Kb5 Qg2 Ne5 Qh1 Kc6 Ra3 Qh5 e8R Rg8 Ke7 Rg5 Rh8 Rcg8 Kf6 R8g7 c8Q+ Nc7 Qd8 Na8 Qg8 Qe8 Re3 Rgh5 Ree2 Bc5 Re3 f2 Re1 f1N Ree2 Nc7 a8Q Ne3 Rf2 N3c4 Rf1 Bb5 Qa4 Na8 Rf3 Rg2 Rg3 Bf2 Rg7 Rg3 Rf7 Rg7 Rf8 Qb8 Rd8 Qa7 Rb8 Qb6 Qa5 Ba6 Qa1 Qb5 Qa4 Rg6+ Ke7 Rg7+
1R1bQ1N1/Rpn2Pk1/rQ1B1r1p/Qp3bB1/2n5/2N2B2/2rbb1K1/3rq1n1 w - - 0 1 legal: proof: e4 d5 b4 g5 h4 gxh4 c4 dxc4 b5 f5 b6 fxe4 Rh3 axb6 Rh1 b5 f4 Kf7 Kf2 c5 a4 e5 d4 h3 g4 e3+ Kf3 c3 f5 c4 g5 c2 a5 h6 g6+ Kg7 a6 e4+ Kg3 c3 a7 e2 d5 e1R d6 h2 d7 e3 Ra6 e2 Ba3 c1N Kg2 c2 Nd2 Qh4 d8B Nf6 Bd6 Nbd7 Ne4 Nb6 Qd4 Nc4 Qb6 Ne8 Bg5 Be7 Nf6 Rf8 Ng8 Bd8 Ra4 Nc7 f6+ Kh8 Ra5 Rd1 g7+ Kh7 Ra6 e1B Ne2 Bf5 Rg1 Bd2 Nc3 Qe1 Be2 Kg6 Bf3 Ne2 Ra5 c1R Ra6 Rc2 f7 Re8 Ra4 Re6 Ra2 Rf6 Ra1 Rb8 a8Q Kh7 Qaa5 Ra8 Ra3 Ra6 Ra4 Qh4 Re1 Ng1 Re8 Qe1 Ra3 Be7 Rb8 Bd8 Ra1 h1B+ Kh2 Bg2 Qa2 Ra4 Ne7 Bf1 Qa3 Be2 Kg2 Ra7 Qb4 Ra3 Ra2 Rb3 Ra7 Rg6 Qa4 Ra3 Qb4 Ra6 Q4a5 Be4 Ng8 Re6 Nf6+ Kg6 g8Q+ Kf5 Qh8 Kg6 Qe8 Kg7 Ng8 Rf6 Be5 Bh7 Bd6 Bf5
n6Q/pk1B1pKP/1Bqn2bb/2R4B/1b1n4/1bpN2R1/R4Nrr/1Q2nr2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 e4 Kc6 d4 g5 h4 g3+ Kf3 g4+ Ke2 c3 Kd3 f3 b4 a3 b5+ Kb7 d5 c5 h5 f2 d6 c4+ Kd4 a2 Ke5 c2 d7 c3 b6 g2 h6 g3 Nf3 g1R Rh5 g2 Nbd2 Bb4 Be2 f1B Ne1 Nf6 Nd3 Na6 Rh3 Rg8 Bh5 Nc7 Rg3 Nfe8 h7 Nd6 Qe1 Qe8+ Kf6 Rb8 d8Q Be6 e5 Bb3 e6 Na8 e7 Qc6 e8B Rg7 Ba3 c1B Ne4 Bh6 Nef2 Rh1 Qe4 g1N Bd7 Ne2 Qh8 Rh2 Qh1 Bh3 Qb1 Bf5 Bc1 Bg6 Be3 Ng1 Bc5 Nf3 Be3 Ne1 Bd4 Ka6 b7 Re8 b8R Rgg8 Rd8 Kb7 Bb6 Re4 Rc8 Rf4+ Bf5 Rf3 Nd1 Rf1 N1f2 Qg2 Rc5 Qc6 Bd7 Rg7 Qd1 Rg8 Rb1 a1N Rb2 Nac2 Ra2 Nd4 Qb1 Re8 Qc2 Re2 Qb1 Bg5+ Kg7 Bf4 Nh1 Reg2 Nhf2 Bh6+
B2Q4/1qrKBb2/1k3NQN/1n6/qp2RR1p/3p2qN/P2B1b1q/1b2nrb1 w - - 0 1 illegal: No possible last move, all moves rejected
rBkn2K1/BN1Rn3/4B1N1/Q2bp3/1p2Q1q1/b5r1/pRr1P2n/r1n3Qq w - - 0 1 illegal: No proof kernel
qNrb2r1/BQ3b1q/1RB1R3/P1Qn1R2/1Nq1p3/1n5p/2q2bQp/1k2Kb2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Bc4 e3 g4 h5 f4 e5 a4 Ke7 g5 Kd6 a5 Kc5 g6 b5 g7 d5 f5 d3 c3 d2+ Ke2 b3 f6 b4 f7 b2 Ba2 d4 c4 b3 Rh3 Kb4 c5 d3+ Kf1 e2+ Kf2 e1B+ Kf1 Ba6 c6 Bf2 c7 Nc6 c8Q Nf6 g8Q Nd4 Qf5 Be7 Qc2 d1Q+ Kg2 d2 Qf4 Qe2 f8R d1B Qgg4 Rg8 Na3 b1Q Qfe4 b2 Bd5 Bd3 Qc8 Bb3 Be3 Qa2 Qg7 b1Q Nf3 Rb8 Qcf5 Kc3 Nc2 Kb2 Rg3 Qc8 Rg6 Bd8 Nb4 Qb7 Qe7 Qa8 Qb7 Rc8 Qg5 Ba6 Rf7 Qbd3 Re1 Qec2 Re2 Ka1 Kf1 Kb1 Qg2 Bbc4 Qf5 Qab3 Rh6 Qe4 Qfg5 Qh7 Rf8 Qbc3 Rg6 Nb3 Ba7 Bab5 Nd4 Be8 Ndc6 Bd3 Nb8 Qc4 Rh6 Beg6 Bc6 Be8 Qe3 Nd5 Rf5 Bf7 Rd6 h3 Rg6 h2 Bb5 h4 Rb6 h3 Qc5 Be3 Ke1 Bg1 Re4 Bf1 Bc6 Bd4 Rg4 e4 Rg6 Bg1 Re6 Bf2+
b2R2Kn/3q1RQ1/1rN3np/1Nr1Q3/Pr2rBqp/bq6/qQ1B2p1/6kB w - - 0 1 illegal: No proof kernel
4n3/4q2N/1B1PB2Q/qn3prr/1q2npRn/2Qb1p2/R4BR1/bk1Nq1K1 w - - 0 1 illegal: No proof kernel
RN1Nr3/R2Qn1q1/2pbnb2/2kbQ2p/8/1pqnrbQN/P5K1/1B2B2n w - - 0 1 illegal: No possible last move, all moves rejected
3n4/K5k1/1p1Bq1pN/bqR1P1qn/n1r1b3/N1pQq1Qr/B1R1Q3/nB6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 d4 f5 h4 Kf7 e4 b6 a4 f3 Ke3 c3 e5 b3 a5 b2 d5 f4+ Ke4 f2 d6 c2 Kd5 g6 d7 f3 h5 g3 h6 c4 h7 g2 a6 Bb4 a7 Nc6 Ra5 Bb7 Ra2 Rc8 a8B Ba5 Na3 b1N Bd3 f1Q Ne2 g1Q Ng3 f2 Qe2 Qg5 d8Q Qh3 Nf5 f1Q Nh6+ Kg7 Be3 c1N Bc5 Qhg4 Rc2 Nb3 Bd6 Na1 Rh3 Q4f5 Be4 Qd7 Rhc3 Q5e3 Qh4 Qgg5 Qg3 Qdf5 Rb3 Rc7 Rb5 Qff6 Rc5 Q6f5 Be7 Nd8+ Kd6 Qfg4 Bf5 Bg2 Bd5 Nf6 Bfe4 Nh5 Bf7 c3 Ba2 Nd2 Kd5 Ndb3 Bd6 Rc8 Kc4 Qh3 Kb5 Qe6 Ka6 Bf3 Bd3 Be4 Ka7 Rc6 Rd2 Rc8 Bdb1 Rc6 Rc2 Rc8 Rc6 Nc5 Qd3 Na4 Rc5 Rc7+ Kb8 Rf7 Qd2 Nf6 Ng4 Bb7 Ka7 Qfc4 Qd3 Qb5 Bc7 Rd7 Bb8 Rd4 Bc7 Re8 Bd6 Rc4 h8Q+ Kf7 Qg2 Be4 Qhh2 Kg7 Qge2 Rh8 Qg3 Rh3 Nh6 Nh5
5B2/k2n3Q/p2pR2q/bPrq4/1p1n2b1/1bQKQ2b/2BRnR1n/NN2r3 w - - 0 1 illegal: No proof kernel
R1qQbQRn/1NB1pN2/2kp2b1/6B1/R1p1rB2/5rK1/1r1P2n1/1qb3br w - - 0 1 legal: proof: e4 b5 h4 f5 b4 fxe4 c4 g5 Bd3 gxh4 Bc2 a6 Ba4 bxc4 b5 Nc6 b6 Nb8 Bb5 axb5 g4 c5 a4 h5 f4 c3 Kf2 d6 b7 Kd7 f5 b4 a5 c2 f6 c4 f7 b3 a6 h3 g5 h4 g6 e3+ Kf3 b2 g7 e2 a7 e1R Rh2 Nf6 g8Q Bg7 f8B Kc6 Qh7 Nbd7 b8B Ne5+ Kf2 Bf5 Qg4 Ng6 Qg8 Re4 Nf3 Nh5 Ra4 Qc8 Nc3 b1Q Bc7 Nhf4 Ng5 Ng2 Qf3 Rb8 a8R Rb2 Nf7 Rh6 Rh1 h2 Rg1 h3 Kg3 Bd4 Qf1 Rh8 Bh6 h1B Bg5 h2 Qd8 Rf8 Qf3 Nh8 Qf1 Rf4 Ne4 Bg6 Nc5 Re4 Nb7 Be3 Qf5 Bb6 Rf1 Ba7 Rf4 Bg1 Rg4 Rb4 Bb2 c1B Be5 Rb2 Nh6 Rf7 Qf6 Rf8 Qg7 Rf7 Qgf8 Rf1 Bef4 Rf2 Kh3 Rf3+ Bg3 Be8 Ra1 Ref4 Nf7 Rf2 Bf6 Ne1 R1a4 Be4 Kh4 h1R+ Bh2 R4f3 Rg8 Re2 Bg5 Bf5 Bf6 Re6 Bg5 Bg6 Kg4 Ng2 Bhf4 Rf1 Kg3 Re4 Rb4 Rf2 Rba4 Rf3+
2R4n/2K1p2p/B2B4/2n1Pq1N/kqQQn3/r1pn1N1B/3r1b2/rQ1R1b1r w - - 0 1 legal: proof: g4 d5 h4 a5 c4 dxc4 b4 axb4 g5 f6 Qc2 fxg5 Qb3 gxh4 Qd1 h3 f4 Kd7 Kf2 Kc6 Kg3 Kb5 d4 g5 e4 c5 e5 b3 a3 g4 f5 b2 Kf4 g3 d5 g2 d6 h2 d7 Na6 f6 Qa5 d8Q Nh6 f7 Qb4 Qc2 Bh3 Qe2 Ka4 Ke4 b5 Kd5 c3 Kc6 c4 Kb6 c2 Qd4 c3 Qec4 Nc5 Nd2 b1N Ndf3 Nd2 Ne2 g1R Nf4 Nde4 Kc7 Rg2 Bd3 Rd2 Rd1 h1R Nh5 Bf1 Bb2 Bg7 f8Q c1N Qf5 Nf7 Qg6 Bh6 Ra2 Ka5 a4 Be3 Ba3 Bf2 Ra1 Rhd8 Ra2 Nh8 Be2 Ng3 Qb1 Ra6 Bd3 Rda8 Bf5 Nge4 Bh3 Qb2 Ra1 b4 Ra2 b3 Ra1 Nd7 Bd6 Nd3 Ra2 Qc2 Ra3 b2 Rb3 N7c5 Rb8 Rb6 Rc8 Rb3 Qe6 Ka6 a5 Kb5 a6 Ra3 a7 Qa4 Qed5 Qb4 Qe6 Ka4 Qec4 Rb8 a8B Rb7+ Kd8 Ra7 Bb7 Ra6 Kc7 Ra8 Qc1 b1Q Ba6 Qa2 Qf7 Qe6 Qb1 Qf5 Qfc4 Ra1 Bb7 Ka5 Qe6 Kb5 Qed5 R8a2 Q5c4+ Ka4 Ba6 Ra3
r2BR1N1/3npPr1/Bb1k1b2/Qb1pN1qr/b3KNp1/3Q4/1qB5/r1n1R3 w - - 0 1 illegal: No possible last move, all moves rejected
1QqR1B2/1n1pr1q1/1q3Qp1/1K1nR1Rb/rN1bp2P/1q2b3/3b2N1/1Bk1B3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 f4 Ke6 c4 Kf5 h4 b5 a4 e5 a5 e3 Kd3 g6 c5 e4+ Ke2 d3+ Ke1 b3 a6 e2 Kd2 e1B+ Ke3 g3 Kd4 d2 a7 b2 c6 b4 Kc4 b3 c7 g2 Rh2 Nf6 Nf3 g1B Kb5 Nc6 Qe2 d1Q Ra6 Bd4 Qg2 Nd5 Bd3 Bd2 Ra5 Bh6 Na3 b1Q Qf1 b2 Nc2 Qa1 Nb4 b1Q Rg2 Re8 Ne1 Re7 Rg3 Qdc2 Ng2 Qbb3 Qf2 Bb7 c8Q Qcb1 Qc7 Qc8 Qb8 Nd8 Rg4 B2e3 Bd2 Qg1 Be1 Bd2 Ra6 Qac3 Re6 Ba6+ Ka5 Bb5 Bb1 Be2 Rg3 Bf3 Kb5 Bh5 Qf3 Nb7 Re5+ Kf6 f5 Bhe3 Rg5 Qf8 Bf2 Qcc8 Be1 Qg7 Qc7 Rb8 a8R Qf2 Ra2 Ra8 Qb8 Ra6 Rc2 Ra4 Rc5 Rf7 Re8 Re7 Rd8 Qg1 Qa8 Ke5 f6+ Kd6 f7 Ke6 Rg3 Ke5 f8B Qf2 Qf7 Qff6 Qb8+ Kf5 Rh3 Kg4 Rh1 Kf3 Rg1 Ke2 Qe6 Kd1 Qed6 Nb6 Re5 Nd5 Qe6 Qf2 Qf6 Kc1 Qf3 Bb2 Qf6 Bh6 Nf4 Qa7 Rg3 Bd4 Ng2 Bhe3 Rgg5 Qb6+
b2NBRr1/Q1p1B2q/q1b1Q3/5qBK/6p1/R2nr2N/Pq3b1p/3Nbkn1 w - - 0 1 illegal: No proof kernel
q4bBn/N1pb1B2/K2nQ1R1/1Q1b1bN1/2q1p1RN/prr1P3/k5rr/3B4 w - - 0 1 illegal: No proof kernel
5B2/RPR2r1n/qRb1q1p1/kb5r/1N1K1BB1/1pnp2q1/1Q1Nb2b/1q4Q1 w - - 0 1 illegal: No proof kernel
1N1rR3/npQ2N2/bQ1n1qk1/q1rp2Pp/4rq1q/R2Q2rB/3b3B/3K2N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 d5 c4 h5 g4 f5 a4 Kf7 e5 h3 g5 f3 c5 d3 e6+ Kg6 a5 d2+ Kf2 h2 e7 f4 e8N b3 c6 b2 c7 Nc6 a6 Nf6 a7 Bg4 c8Q Bb4 Ra6 Qa5 Nd6 Rd8 Qe1 d1R Qe3 Ne8 Qa3 Rd3 Bh3 Bd2 Qd7 Rac8 a8Q Na7 Nf7+ Nd6 Nc3 b1R Ne4 Rc5 Qc7 Rb4 Nf6 Re4 Nd7 Rde3 Kf1 f2 Nb8 Rg3 Qd3 Bd7 Bb2 Bb5 Be5 Bc4 Rb6 Ba6 Rb3 Be3 Ke2 f3+ Kd1 Bd2 Rc3 f1Q+ Kc2 Qg2 Kd1 Qf2 Ra3 Qd4 Qb6 f2 Bf4 Qf6 Qc7 Nc6 Be5 Qf4 Qa7 Qf6 Qab6 Na7 Nf3 Qf4 Re1 f1Q Ng1 Qf6 Bf4 h1Q Be5 Rg2 Bh2 Q1f4 Re2 Rg3 Qdb3 Rb4 Re8 Qhe4 Qe3 Qh4 Qb3 Qef4 Qd3+ Re4
b1n1q2k/P2KRqn1/Q3pNQ1/3b4/3n2B1/5rB1/n1Rp1pNB/1bb3Nr w - - 0 1 illegal: No proof kernel
q5KR/1n1kq3/RQ2bqQr/2p3p1/1B2b2b/3rQP1p/3p2N1/NR1r1Bn1 w - - 0 1 illegal: No possible last move
1RKBrRB1/1Rn4n/Bn4pN/NQ2Q1p1/2p1r1q1/3b3k/1bP1p1q1/3q3r w - - 0 1 legal: proof: f4 a5 g4 h6 b4 axb4 g5 hxg5 e4 d6 e5 dxe5 Kf2 exf4 Ke1 f3 Ba3 Kd7 Kf2 Ke6 Ke3 Kf5 d4 Kg4 Ke4 e5 h4 f5+ Ke3 b5 h5 c5 h6 b3 d5 f4+ Ke4 g6 h7 b4 d6 b2 Kd5 b3 d7 e4 Ke6 e3 Qd4 f2 Nd2 b1Q Qd3 b2 Nb3 f3 Ne2 Ra4 Ned4 Ba6 Nf5 Qc8 Be2 Rc4 Rf1 Bg7 Qd5 Qe1 Rb1 Nf6 Qc6 Rf8 h8Q Nh7 Nh6+ Kh3 Ke7 Rb4 d8R Qg4 Qd5 Bc3 Qhe5 Nd7 Rb8 Re4 Bb4 Rc8 a4 Re8+ Kd6 Qc1 Kc7 Bd4 Bb5 e2 a5 Bc3 Qc6 Qd1 Bd3 Bb5 Bc4 Ba6 Bg8 Bd3 a6 c4 a7 Bd4 Rg1 f1Q a8B f2 Bb7 Bc3 Ba5 Bd4 Rg2 Qh1 Qcc5 f1R Rf2 Qhg2 Ba6 Rh1 Rf8 Bc3 Bb6 Bd4 Na5 Bc3 Ra1 b1N Qcd5 Na3 Rb1 Nb5+ Kb7 Qd2 Bd8 Qd1 Kc8 Nc7 R1b7 Bb2 Qb5 Nb6+
Bn3qbB/nR1r2Q1/3p2pR/2b1q3/PN6/kbpKp1N1/3Qr3/1r1qRN2 w - - 0 1 illegal: No proof kernel
8/1R3Qp1/n3bQK1/b1NNb3/r3q2B/2pnq1p1/1Q1Pnpq1/BR1r1B1k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 b4 Ke6 h4 Ke5 e4 c5 b5 f5 b6 a5 b7 f3 Kg3 f2 h5 c3 h6 c2 h7 c4 Ba3 c1N Qe1 f4+ Kg2 g3 Kf3 Be6 Bb2+ Qd4 Rh6 a3 Nc3 a4 Rb1 a2 Be2 a1Q Bf1 a3 Rf6 a2 Nd5 Nd3 Ne2 Bb4 Nec3 Ne7 Rf7 Nec6 Na4 Ba5 Qc1 Na6 Nc5 Rhf8 Ba3 Qac3 h8Q a1B Qh4 Rh8 Qd8 Rh1 Qb2 Qc2 Rc7 Qdc3 b8B Nd4+ Kg2 Ne2 Kf3 Kd4 e5 Qa4 Qf6 Qb4 Bg2 Rd1 Rb7 Qa4 Bd6 Qc6 Be7 Qe8 Qf5 f1Q+ Kg4 f3 Kg5 f2 Qf6 Qc6 Bh3 Qg2 Bd8 Qe4 Bf1 Qg2 Kg6 Ra7 Nb3+ Ke4 Bb4 Qd4 Bc3 Qe3 Be7 Qf4 Nc5+ Kf3 Qg5 Qe3 Qf6+ Kg4 Bd8 Kh3 Bd4 Kh2 Be7 Bh3 e6 Kh1 Bd8 Ra8 e7 Be6 e8Q Ra7 Qef7 Ra8 Nc3 Qcf3 Nd5 Qfe4+ Qf5 Ra7 Bh4 Ra8 Qb4 Bc3 Qb2 Ra7 Bdf6 Be5 Qc1 Bf4 Bd8 Bc3 Bhg5 Nab4 Bh4 Ra4 Bdf6 Na6 Qa3 Bb4 Ba1 c3 Qc1 Be5 Qb2 Q4f3 Qg5 Ba5 Qgf6 Qfe4+
4Rr2/2q2QpB/bk1B1Q1b/r1n3p1/rnnBp2P/Np5R/q4Q2/2KN1b2 w - - 0 1 legal: proof: g4 f5 b4 a5 d4 axb4 e4 fxe4 g5 c5 g6 cxd4 Nd2 hxg6 Nb1 e5 Kd2 d5 a4 Kd7 h4 Kc7 c4 b5 f4 b3 f5 b2 c5 d3 a5 e3+ Ke1 e4 f6 e2 Kd2 e1R a6 d4 f7 b4 c6 b3 a7 Nf6 Bg2 Nd5 Qg4 Ba6 Na3 b1Q Qf3 Bc5 f8B Qa2+ Bb2 Kb6 c7 Nb4 c8Q Nd7 Bh3 Qc7 Bf5 Be7 Qe3 Bg5 Bd6 Bh6 Qg8 g5 Qf7 Rhf8 Bh7 Rc1 Rh3 Rc5 Ke1 d2+ Kf2 d1N+ Ke1 d3 Qef2 Ne3 Ne2 Rae8 a8Q Rb5 Qd8 Nc5 Qdf6 Ra8 Nc3 d2+ Ke2 d1B+ Kd2 Bc2 Nd1 Nc4+ Ke1 Ra5 Nc3 Ra4 Rd1 Bb5 Rd5 Ka7 Re5 Ka6 Re8 Bd3 Kd1 Kb6 Kc1 R8a5 Nd1 Ba6 Bd4 Bf1
1B3QB1/R3B1pR/5P2/1qQ1nq2/pKbr1p1Q/rpN2b1n/r3qbk1/3N4 w - - 0 1 illegal: No proof kernel
2r2Q2/B2b2p1/3bqpQ1/KN1Nn3/1p3pR1/nP3q1R/kb5R/B1n2rqN w - - 0 1 illegal: No extended proof kernel
1r1bN1bB/2Rn1P2/qn2Nn1Q/6B1/kr2QpB1/1b1p4/pR1N1p2/Kq5q w - - 0 1 illegal: No possible last move, all moves rejected
3B2b1/2qNrpn1/2K1R3/4rkN1/1Q2R1qP/qQp1p1p1/3bB1rQ/2n1b1B1 w - - 0 1 illegal: No proof kernel
1Q3r2/4kp2/1Pbn1b1K/rRp3Qn/1r3nR1/Nb2p2B/p1qN1B2/4QN1q w - - 0 1 illegal: No proof kernel
1KN1R1qB/1BQ1bp1p/b4pr1/5RN1/2R1PQ1p/1Bqbn1n1/3rk3/nq6 w - - 0 1 legal: proof: f4 c5 b4 g5 h4 gxh4 d4 cxd4 f5 a5 f6 axb4 Qd2 exf6 Qd3 Be7 Qd1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 b5 g4 d3 a4 d2 a5 d6 g5 b3 g6 b2 g7 b4 a6 b3 a7 Bg4 Na3 Na6 Nf3 Bc8 Nb5 Be7 Ra5 Nb4 Ng5 Nh6 g8R Nc2 Re8 b1Q e3 b2 Qg4 d1N Qf4 Kb4 Kd5 Nf5 Kc6 d5 e4 d4 c5 d3 Nd6 d2 Bc4 Kc3 Bb3 Ba6 Nc8 Kd3 Ra4 Rf8 Rc4 Ng3 Rf1 Rg8 Rf2 Rb8 a8B Nde3 Bb7 d1Q Rf3 Qd4 Kc7 Rg6 c6 Qg1 Bd2 Ra8 Bb4 Ra7 Kb8 Qc3 c7 Ke2 Bc5 Na1 Rf1 Bd8 Bf8 Be7 Bg7 Qg2 Bh8 Qg1 Nb6 Qg2 c8Q Qg1 Ba8 Rd7 Bb7 Rd2 Qd8 Qa2 Nc8 b1B Qdc7 Bd3 Qfd6 Qg2 Rf5 Qb1 Qe5 Qf3 Qf4 Qh5 Ra5 Qh6 Re5 Qg7 Rf5 Qg8
kn2n1QN/4pK1P/B2Rpq2/1B3r2/p1bn1Q2/bRB3N1/qrr2pb1/R7 w - - 0 1 illegal: No possible last move, all moves rejected
1B3R2/1Nbpn3/nBpP2rk/Qbq1p2p/3NR3/2B2q2/rnbr1Q1R/7K w - - 0 1 legal: proof: e4 b5 h4 f5 b4 fxe4 c4 g5 Bd3 gxh4 Bc2 a6 Ba4 bxc4 b5 Nc6 b6 Nb8 Bb5 axb5 Kf1 Kf7 a4 Kg6 d4 e5 f4 h5 g4 e3 Kg2 c6 b7 c3 d5 c2 f5+ Kg7 f6+ Kg6 a5 b4 a6 b3 a7 b2 f7 e2 g5 e1R Ra4 Ba3 f8B Ne7 Re4 Qb6 Qd4 Bb4 Ne2 Qc5 Qf2 Na6 b8B Ba5 Nd2 b1B Bb2 c1N Nd4 Bc7 Nc4 Rd1 Rh2 Rd2 Na5 h3+ Kh1 Rg8 Bc3 Nd3 Nb7 Nb2 d6 Kh7 Bh6 Bc2 g6+ Kh8 g7+ Kh7 Rg2 h2 Bg5 Kg6 Bf6+ Kh6 Bh4 Rf8 g8R Rf6 Rf8 Rg6 Rgg4 Ng8 Bd8 Ne7 Rh4 Nb4 Na5 Ba6 Nb7 Bb5 Rh3 Ba5 Bb6 Na6 B8c7 Rb8 a8Q Re8 Qa7 Ra8 Qb8 Ra7 Qd8 Ra8 Bb8 Ra7 Rhh4 Ra8 B6a7 Bc7 Bb6 Kh7 Bba5 Nb4 Qe2 Bb6 Rh3 Kh6 Qc7 Kg5 Kg2 Ra7 Qf2 h1Q+ Kg3 Qd1 Kh2 Kh6 Qd8 Qg4 Kh1 Qf5 Rh2 Ra6 Ba7 Qf7 Qa8 Bc7 B5b6 Ra2 Bb8 Qf4 Qa3 Na6 Qa5 Qf3+
K3R3/N1p4B/1qB3b1/1pN1nqbB/n1r3p1/r1P3Q1/1R2rpb1/2knQ1R1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 e4 dxe4 g5 h6 f5 g6 Bb2 gxf5 g6 f4 Bf6 Ra4 Bh4 Ra8 Bg5 hxg5 Ke2 Kd7 h4 Kc6 d4 Kb5 a4+ Kc4 h5 e5 c3 f5 g7 b5 a5 b3 d5 b2 d6 e3 Kf3+ e2 a6 e4+ Kg2 f3+ Kg3 f4+ Kf2 Bf5 d7 Be7 a7 Nh6 g8B+ Nf7 h6 Na6 h7 Qb8 d8R Nc5 Rh6 Bg6 Re8 Na4 Nd2+ Kd3 Qe1 Kc2 Rh2 b1Q Nb3 Qb6+ Nc5 Ne5 Bh3 Kb2 Bg4 Qc2 Bh5 g4 Be6 Rf8 h8Q Bg5 Bf5 Rf6 Qf8 Rc6 Qd6 Qb1 Be6 Qd3 Bg8 Qd5 Rc1 Qe6 Bh7 Qf5 Qed1 e1N Ne2 Ng2 Qe1 Ne3 Nd4 Rd8 a8B Nd1+ Kf1+ f2 Ke2 f1B+ Kd2 Qa7 Rf2 Ra6 Nc6 Qb6 Na7 Bg2 Bc6 e3+ Ke2 Ra5 Rb1+ Kc2 Rf1 Ra6 Rb2+ Kc1 Qd3 Rd4 Rg1 Re4 Qd6 Nd7 Kd3 e2 Qe5 f3 Qd6 f2 Qg3 Re6+ Kd4 Ne5 Qf1 e1R Qe2 Bh3 Kd5 Re7 Qf1 Re4 Qe1 Rc4 Rd2 Nb2 Ba8 Ra3 Re2 Na4 Rb2 Qc8 Bb7 Nf3 Ba8 Bg2 Bb7 Qa5 Kc6 Qf5 Ba8 Re3 Kb7 Re2 Kb8 Qa6 Bc6 Qb6+ Ka8 Ne5
bB1B4/R1p5/p3qnPb/r1pQ4/1n2qNkn/4b1rN/Bp4RK/1Qq4N w - - 0 1 illegal: No proof kernel
1N2brKn/2ppR3/3N1B1q/3B4/1Q3n1Q/b1qP1pQr/R2pr3/n1bN1k2 w - - 0 1 illegal: No proof kernel
1Q1N2q1/1P2RB1n/pb2nq1b/QrBk1r2/r2N1pB1/4p3/Rn5p/2K1R2b w - - 0 1 illegal: No proof kernel
bB6/1prr3Q/1b1R3K/N3q2p/2Qbq2B/2q1k2p/rpBR1RPN/2nn4 w - - 0 1 illegal: Other
1b1N2bq/P2K4/3N1k2/2R3pp/pr1nQnp1/1qR4Q/n1B1q1r1/1bQBB3 w - - 0 1 illegal: No proof kernel
bk5n/pr1Q1bN1/1Q3bN1/2K2p2/2n4R/1Rr2pp1/1PB2NqB/2B1n1qq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 d5 h4 Kd7 c4 Kc7 e4 g5 c5 f5 h5 d3 e5 d4 c6 g3+ Kf3 a3 h6 d2 h7 g2 e6 d3 e7 g4+ Kf2 g3+ Kf3 a2 e8Q Be7 Qc2 d1B+ Ne2 g1Q Nc3 d2 Rh4 Bf6 Ne4 Nd7 Qb3 Ne7 Nf2 Bb7 Qb6+ Kb8 Qf7 Ba4 Nd4 Bb3 Ne6 Ng6 Ng7 d1Q+ Be2 Re8 h8B Re7 Qd5 Qd2 Bd1 Qe8 Qdb5 Bf7 Bc2 Qg8 Qd5 Qh7 Qe6 Qd5+ Ke2 f3+ Ke3 Nde5 Qd7 Qb5 Kd4 Qbf1 Kc5 Nc4 Qd1 Qfg2 c7+ Kc8 Qd3 Re3 Qd5 Rb8 Qdd6 Rc3 Qd1 Bbd5 Qd4 Kd7 c8N Rb7 Ne7 Qh5 Qb4 Kc7 Qb6+ Kb8 Qd2 Be4 Qd7 Nf8 Ng6 Qh7 Rf4 Qhh1 Rh4 Bed5 Be3 Be4 Re1 a1N Bc1 Bed5 Re3 Bc6 Ba4 Nc2 Rd3 Ne1 Bc2 Ra3 Rb3 Nh7 Rb4 Rc3 Rb3 Ng5 Ne6 Bd8 Bd4 Bf6 Ng7 Be6 Nd1 Nf7 Bf2 Nh8 Bfe3 Q1f1 Bg1 Bf7 Bh2 Qgg1+ Nf2 Qfg2 Qb4 Rb6 Qa5 Ba8 Qab5 Rb7 Qbc6 Re3 Qb6 Rc3
7Q/pb5R/1n1pQqpR/kNN3p1/B1nPb3/r2Bb3/KR1q2nr/Q3q3 w - - 0 1 legal: proof: f4 b5 g4 c5 a4 bxa4 b4 e5 b5 exf4 g5 h6 Ba3 hxg5 Bb4 cxb4 h4 f5 e4 f3 c4 g6 d3 f4 Kd2 f2 Kc2 b3+ Kb2 f3 e5 Nc6 e6 Na5 h5 Ne7 b6 Bb7 c5 Nc8 c6 Bc5 h6 Be3 h7 Rb8 Be2 f1Q e7 f2 c7 Qe1 Rh6 f1N Nd2 a3+ Kb1 b2 d4 d6 Bd3 Kd7 Ka2 Kc6 Nb3 Qd2 Nc5 Nc4 Ne2 Kb5 e8B+ Ka5 Nc3 Qf6 Nb5 b1B+ Kb3 Ba6 b7 N8b6 c8Q a2 Qe6 Rc8 b8R Bb7 Be2 B1e4 Bd3 Rc6 Rb1 a1Q Rb2 Qac1 Ka2 Qe1 Rd8 Qcd2 Qa1 Rc7 Na6 Rc5 Rd7 Rf5 Nc5 Rf3 Rc7 Rh3 Bc6 Rh2 Qd7 Re8 h8Q Re5 Qf7 Rf5 Qe7 Rf3 Qe6 Bf2 Rch7 Rg2 Na3 Rh2 Be2 Nfe3 Ba4 Ng2 Nb5 Rc3 Bf1 Be3 Bd3 Ra3+
6k1/b1qrb1n1/B2N1RNr/Rpb1Q1B1/p2p4/n1P3Q1/1Qp1b3/2nNb2K w - - 0 1 illegal: No proof kernel
1k1b3R/1n1bN3/n3p1r1/2p2Pn1/Q1ppb3/b2N4/bNBR3q/r1K1BRQ1 w - - 0 1 illegal: No proof kernel
1bB1Q2R/1Q4N1/1p1N4/NbB2R2/1npp3q/b1p3B1/br2Pr1n/k2bKr2 w - - 0 1 illegal: No possible last move, all moves rejected
2R2Qr1/KN3P1B/3NpkNp/2nr3B/rr2p3/n1r4p/5B1b/Qn1b1R1q w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 d5 f4 b5 c4 e6 a4 h3 c5 b3 a5 b4 a6 d3+ Ke3 b2 Kd4 h6 g5 d2 c6 b3 g6+ Kg7 f5 Qh4 c7 Nf6 a7 Na6 Na3 b1N Be2 b2 Bh5 Nd7 Nb5 Rg8 Nd6 Nb6 Ne2 Bd7 c8N Kf6 g7 Qe1 Nf4 Ba4 Rf1 Nc4 Nb7 Bd6 Ng6 Bh2 Ncd6 Nca3 Qf3 Rac8 a8Q d1R+ Bd2 Rdc1 Be3 Bd1 Bf2 R1c3 Qh1 R8c5 Qe8 Ra5 Qf8+ Kg5 f6 Ra4+ Nc4 Kf5 f7 Kf6 Ra2 Nc7 Kc5 d4 Kb6 d3 Ra1 Na6 Ka7 d2 Ra2 Bg4 Ra1 d1R Ncd6 Rd5 Ra2 Bd1 Ra1 Nd2 Rc1 b1R Qg1 Rbb4 Rc2 Rh8 g8B Ndb1 Bh7 Rg8 Qh1 Qe2 Qg1 Qf3 Rc1 Qh1 Rc2 Rcd3 Rc8 Rc3 Qg4 Bb3 Qd1 Bc2 Qc1 Bb3 Qb2 Bd1 Qa1 Nc5+
4B3/k2Np1r1/Pp3bRN/2Q1Br1K/rnQ5/1n1bb1b1/q3pNbp/BR6 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 a4 Kc6 g4 Kb6 d4 c5 f4 h5 f5 c3 g5 c2 g6 e3 Kf3 h3 a5+ Ka7 g7 b6 d5 b3 f6 b2 d6 c4 d7 e2 f7 c3 Qd6 h4 Kg4 h2 Qd5 h3 Qh5 Nc6 Qb5 Rh7 Nd2 b1R Bg2 Nd4 Ndf3 Nb3 Qc5 Ba6 Ng5 Bd3 Bb2 c1B Bc6 c2 a6 Bf4 Ra3 c1B Ba1 Bg3 Ba4 Qe8 d8B Be3 Bc7 Rf1 Bce5 Rc8 Bd7 Rf5 Ra5 Qd8 Be8 Qd5 Ra4 Rc7 Rd4 Qe6 Rd6 Qd5 Rh6 Qe6 Kh5 Nf6+ Kg6 Qd5 g8Q Bg7 f8N Qe6 Qf7 Nd5+ Kh5 Nb4 Nd7 Bf6 Qg8 Rg7 Rg6 Qc4 Qgd5 Qc2 Qe4 Qa2 Qec4 Rf2 Nf7 Rf5+ Rg5 Rc6 Nh6 Rd6 Qf4 Rd5 Qfc4 Rf4 Rg6 Rdd4 Nf3 Rf5+ Ng5 Re4 Rb1 h1B Bec3 h2 Be5 Rff4 Nh3 Bg2 Nf2 Rd4 Qc6 Rd5 Qc8 Ra5 Q8c6 Ra4 Q6c5 Rf5+
3n1k2/N1pb1rp1/Qprb2nq/5Qb1/Np6/2P3QR/2BrR1BK/2Nr1r2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 h4 e5 d4 e3 f4 g2 a4 b6 d5 e2 Kf2 e1R Kg3 e4 a5 e3 d6 e2 h5 Nh6 a6 Nf5+ Kh2 Kf7 d7 Be7 a7 Bf8 h6 Rh7 Ra2 Ne7 f5 Nbc6 f6 Nd5 Nc3 Nde7 Qa1 Rc1 Na4 e1R Bd3 Red1 Ne2 g1R c3 Ng6 Bb1 Rgf1 Bc2 Rd2 Rb2 Rb8 a8B Rcd1 Ra2 Qe8 d8N+ Kg8 Rb2 Bd7 Ra2 Be7 f7+ Kf8 Rb2 Rh8 h7 Bg5 Bb7 Qe3 Qa3 Nd4 Nc6 Ne6 Na7 Nd8 Bg2 Ra8 Nc1 Qe6 Nc6 Ra5 Na7 Rc5 Qa2 Rc6 Qc4 Rg8 h8Q Qf6 Qh3 Qe6 Qf3 Qe3 Qf5 g3+ Kh3 Qe6 Qa6 Qf6 Bf3 g2 Kh2 Rh8+ Qh3 Rh4 Bfe4 Rhf4 Qg3 R4f2 Nc5 Ke7 Bb3 Ne5 Na4 Rdd6 Re2 R6d2 Bbc2 Rf5 Kh3 Qh6+ Qh4 g1B Bg2 Bh2 f8Q+ Ke6 Qc5 Kf7 Qf2 Rff6+ Qf5 Bg3 Rh2 Ng6 Rh1 Bd6 Rh2 Bc5 Kg3 Kg8 Rh3 Rf7 Kh2 Bd6+ Qg3 Kf8
6kn/P1Q2r2/n1RR3B/1p1QBb2/3q2pr/NK2pQ2/rp6/bN1br1rB w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 d5 c4 e5 Kc2 b5 a4 g5 f4 g3 a5 d3+ Kb3 g4 h5 d4 f5 d2 c5 e3 a6 e4 a7 e2 h6 e1R c6 d3 h7 g2 f6 Qd4 c7 Nh6 Nf3 g1R Bg2 Na6 Na3 Bf5 c8Q Bg7 Qc7+ Kf8 Rh3 Nf7 Bh1 Rb8 Rh6 Rb7 Ra2 Rg2 Rc2 e3 Bb2 Rf2 Rc6 Rg1 Qe2 d1R Nd2 Rde1 Ndb1 d2 Qf3 d1B+ Rc2 Rg8 h8Q Rfg2 Qh7 Nh8 f7 Be5 Rg6 Rg7 Qhh3 Rh7 Qd5 Rh4 Qhf3 Rf2 Re6 Kg7 f8B+ Kg8 Bh6 Bf6 Qcc5 Rf7 Qc7 Bg7 Bc3 Bf6 Rd6 Rfe2 Ka2 b3+ Kb2 Qb4 Be5 Qd4+ Kc1 Bg7 Rcc6 Ra2 Qde4 Qa4 Bef4 Ba1 Be5 Qd4 Qd5 Bc8 Nc3 b2+ Kb1 Be2+ Kc2 Be6 Ncb1 Bf5+ Kb3 Bd1+
n3N1b1/p5r1/pn3bpb/1q2PQN1/pr3KR1/2n3RN/3Qbb1B/4RB1k w - - 0 1 illegal: No proof kernel
rN6/R2r3Q/2RP3B/q2nprnK/b2pR3/r2pN2N/p2b3k/bB1nQ3 w - - 0 1 illegal: No proof kernel
1R1rrn2/Q1b1B1kB/pb1p1Nbn/4P3/3pp2K/1r1R3R/2Qq1nN1/1N5n w - - 0 1 illegal: No proof kernel
5r2/2n5/n1n2n1b/1rR2BRP/1p2QN2/NQB2pK1/Rqp1Bp2/2kn2qb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 Kd4 a5 b5 d3 g5 a6 f5 e5 c5 a7 f3 e6 c3 e7 f4 e8R c4 h5 g3+ Ke1 g2 Kf2 g4 Nd2 c2 Qe2 Kc3 d4 b3 d5 g3+ Ke1 b2 d6 b1N d7 b4 Qe7 f2+ Ke2 Na3 Kf3 Nf6 Bd3 Nb5 Nb3 Bh6 Qe6 Nc7 Rb1 Bb7+ Qe4 Nc6 Rh2 Rb8 a8B Rf8 Nh3 g1Q Na1 g2 Bb2+ Kd2 Re5 c1N Be2 c3 Rc5 Nb3 Nc2 Qe7 Na3 c2 Ra1 Qg7 Ra2 Qh8 Ba1 Kc1 d8Q Qg7 Bc3 Qh8 Rc4 Nc5 Qdd5 N5a6 Qdd3 Qe1 Rc5 g1N+ Kg2 Qd1 Qdd5 Qe1 Qb3 Qd1 Bg4 Ne2 Bf5 Qg1+ Kf3 Qhg7 Rg2 Qh8 Rg5 Qg7 Bd4 Nc3 Be5 Nd1 Bc3 Bc8 Bb7 Be6 Bc8 Bd5 Bg4 Rb5 Bcf5 Qe1 Kg2 Qh8 Be2 Qg7 Be5 Qc3 Kh2 Qb2 Bc3 Qg8 Qe6 Bh1 Qe4 f3 Nf4 Qd5 Kh3 Qd2 Kh2 Qe1 Kg3 Qg1+
1R1nbkr1/1R2N2n/3pppB1/P2Q1R2/1QQ4n/2n1nKNr/1q2pb2/2q1B3 w - - 0 1 illegal: No proof kernel
3r1Q2/4q1BQ/1Np1K1Q1/2PNRR1N/4pp2/2rb2qk/1b2r1p1/1rn1Bn1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 Kf2 Kd7 a4 Ke6 h4 Kf5 d4 e5 c4 b5 h5 e3+ Ke2 g3 Kf3 e4+ Kg2 f3+ Kh3 b3 d5 b4 g6 b2 d6 b3 h6 f2 c5 f1R g7 g2 h7 e2 d7 e1R a5 c6 a6 Ne7 g8Q Rf3+ Kh4 Bg7 a7 Rc3 Qd6 Ba6 Bd2 Re2 Be1 Bd3 Nh3 Na6 Nf4 Nb4 Nh5 Na2 Qf8 Qe8 d8Q Nd5 Qd8e7 Rd8 a8N Nc1 Nb6 Ne3 Qb7 Nf1 Qg6+ Ke5 Kg5 f5 Ra7 f4 Qbf7 Qe6 Q7g8 Qe8 Rf7 Qe7+ Rf6 Rcc2 Nc3 b1Q Rh3 b2 Ncd5 Rc3 Kg4 Qa2 Rh4 b1R Rf5+ Kd4 Re5 Qa3 Kf5 Bf6 Rg4 Bg7 Rg5 Bf6 Nb4 Ke3 N4d5+ Kf3 Qg8f7 Rg8 h8B Rg7 Q8e8 Rh7 Bg7 Rh8 Qef8 Rh6 Ng3 Rh1 Nh5 Qb3 Bd2 Kf2 Be1+ Kg1 Qh7 Kh2 Q7e8 Kh3 Qeg6 Rcc2 Re6 Bb2 Re5 Qa7 Ke6 Rc3 Rgf5 Qc7 Bh8 Qg7 Qge8 Qg3 Qeg6 Qa4 Bf6 Qa7 Bg7 Qe7+
q2R1n2/k1bQKRN1/p1r2Pn1/2nN1pRb/Bp3q1n/pQBQ4/5r2/2n5 w - - 0 1 illegal: No proof kernel
B1NB4/3Bn2r/p1K1bpp1/2b3Rn/krP1q3/3R1b2/b1NQp2Q/2Q1b1q1 w - - 0 1 illegal: No proof kernel
N2R1nN1/7p/r1p2r2/3Qb1QR/P1nqn1qK/2BpQ3/1n4pn/1B1k1b1N w - - 0 1 illegal: No proof kernel
2KNb1Q1/Rq2r2q/2n1Rb1b/2p1rQ2/b2k1q2/N2p4/Pp2p2B/3QnB1R w - - 0 1 illegal: No proof kernel
n7/2QQb1b1/3r3B/pBbR3p/qQ1RbRq1/3p1N2/nr1N1Pp1/3k2Kr w - - 0 1 illegal: No proof kernel
N2Q4/KR1R3n/5pN1/p1b2r1b/2NrQ2n/p2pq1Rb/q2BB1P1/3q2kq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 Ke4 b4 h5 c4 d5 c5 a5 e3 h3 c6 h2 c7 d3 Kb6 d2 b5 f6 Qb3 d1Q Ne2 d4 Ra3 f3 Qc2+ d3 Qb2 h4 Nf4 f2 Qa2 h3 Qe2 Rh5 Ng6 Qd5 Rc3 a3 Bd2 Qa2 Qe1 Rc5 Be2 f1B Rc2 Bf5 c8Q Ne7 Qd8 Nd7+ Kb7 Bg4 b6 Rf5 Rc7 Rb8+ Ka7 Qc1 Nh4 Ng6 b7 Rc8 b8R Bc5+ Rb6 Ndf8 Rg7 Nh7 Rd7 Bd6 Rbb7 Rc4 Rg1 Rd4 Rh1 Ne5 Ng6 Nf3 Ne5 Nh4 Ng6 Kd5 e4+ Kc4 e5 Bc5+ Rb6 Bh5 e6 Qd1 Rg1 h1Q e7 h2 e8N Bg4 Nc7 Bh3 Na8 Qc1 Bg4 Be2 Rf1 Qd1 Rf2 Qg1 Rf3 h1Q Rg3 Bf3 Qe4 Qf2 Bf4 Qe3 Nd2+ Kc3 Nc4 Kc2 Nce5 Kd2 Nc4+ Ke2 Bg5 Kf1 Bh6 Qeg1 Bd2 Qe3 Bh5 Kg1 Bg4 Qa4 Bh5 Bd1 Be2 Q4b3 Bf1 Bh5 Be2 Bf8 Rb8 Qd1 Rbb7 Bc5+
Bbn1k3/3R2q1/4bppr/P3q3/1pNQn1n1/1R2b1B1/1Qp1bN2/Q2rK1R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 b5 d4 c5 h4 b3 e4 c3 h5 c2 d5 g3 e5 f3 h6 c4 d6 b4 e6 b2 e7 g2 h7 c3 a5 f2+ Ke2 f6 Rh4 Nh6 Bd2 c1B Na3 b1N Bf4 c2 Nc4 Be3 Rh3 Ng4 Qd4 Nd7 Bg3 Nd2 Re1 Nb6 d7+ Kf7 e8R Qe7 d8Q Be6 Qb2 Nc8 Qdd4 Ne4 Rd8 g6 Rd5 Ke8 Rd7 Qg7 Rc1 Bd6 Re1 Rg8 h8Q Bb8 Qh5 Rh8 Qhe5 Rh6 Qa1 Qh8 Qdb2 Ra7 Qed4 Qg7 Rb1 Ra8 Rh1 Ra6 Nh3 g1Q Bg2 f1B+ Ke1 Rd6 Nf2 Qh2 Rg1 Be2 Bf3 Ng5 Ba8 Ne4 Qbc3 Qh5 Rb3 Qe5 Qcb2 Rd5 Qdc3 Rd3 Qd4 Rd1+
1rr2n1b/1R1Q2QN/r2p3q/B3KB1k/pp2n2q/B1P3Q1/1Rp2b2/1r1bN3 w - - 0 1 illegal: No possible last move, all moves rejected
2b1Nk1B/2nr4/qR1pRK1R/1Pb5/B1nN3p/nQ2b3/2pQ1p1r/2qN2b1 w - - 0 1 illegal: No proof kernel
BQ6/3bBR2/BQP3np/bqq4p/1n6/Kp1R2nN/1pkr1rNn/2r3R1 w - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 f5 g6 h5 gxh5 f6 exf6 Bb2 f5 Bc1 f4 Kd2 Ke7 a4 Kd6 e4 Kc5 g4 b5 c4 f5 Kc2 d5 Kb2 d3 a5 Kd4 a6 b3 e5 d2 c5 f3 g5 b4 c6 f4 a7 h6 g6 f2 e6 f3 e7 Qd6 e8R Qc5 g7 Ne7 g8B Bd7 Ba6 f1N Bd3 f2 Qc2 d1Q Bc4 Na6 Ra3 Ng3 Bg5 f1N Nc3 Rd8 a8Q Ng6 Qb1 Qd3 Nd1 Nh2 Be7 Ke4 Qc8 d4 Bge6 Rh7 Bh3 Rf7 Qb8 Bg7 Rf8 Rf2+ Ne2 Be5 Ne3 Bc7 Ng2 Bb6 Qg1 Ba5 Bb5 Qdc4 Rf7 Kd3 Bf5+ Kd2 Nef4 d3 Nh3 Q4d5 Bc4 Qb5 Qb1 Qd6 Rg1 Qdc5 Ka1 Kc3 Qb6 d2 Bfe6 Be8 Bc8 d1R Bb7 Rc1 Ba8 Kd2 Qb8 b2+ Ka2 Rd6 Qf5 Rd8 Rd3+ Kc2 Qe6 Bd7 Qe3 Qd6 Qc5 b3+ Ka3 Nb4 Qcb6 Qdc5 Q6b7 Qbb6 Ba6 Qbb5 Q7c7 Rd2 Qcb6 Rf8 Rg7 Rf6 Rf7 Rff2
n1kN3q/n6r/p1prP1R1/np3R2/bb5b/2n5/BK1pq1B1/RNBQ3Q w - - 0 1 illegal: No proof kernel
B3q3/6bp/bPpBn2K/1Npkr3/N3r3/R2q2Q1/2Q1pRrB/2Rq1r1n w - - 0 1 legal: proof: e4 b5 h4 f5 a4 fxe4 c4 bxa4 c5 g5 c6 gxh4 Rh3 dxc6 Rh1 c5 Ke2 Kd7 Ke3 Kd6 Kf4 a5 Kg5 e5+ Kh5 a3 g4 a2 b4 c6 d4 a4 f4 e3 d5 h3 g5 a3 b5 e2 g6 e1R b6 h2 g7 e4 f5 e3 f6 Ba6 f7 Nd7 Qc2 Qe8 Ne2 Ngf6+ Kh6 Rg8 Nec3 Ne4 Na4 Nf2 Nbc3 e2 Bh3 Rf1 Nb5+ Ke5 d6 Kd5 Rg1 h1Q Bf4 Qf3 Bh2 Qd3 Rc1 a1Q Rg2 Nh1 Rf2 a2 Bf5 Be7 f8B Bf6 Be7 Nf8 d7 Bb2 Bed6 Ne6 d8R Ra7 Rc8 Re7 Ra8 Qb1 Ra7 a1R Bh3 Ra3 Ra8 Qd1 Ra7 Re3 Ra8 Nf8 Bc8 R7e5 Bb7 Ne6 Ra7 R3e4 Ba8 Rf8 g8Q Bc3 Qg4 Rg8 Qh4 Rg2 Qg3 Ba1 Raf7 Qb3 R7f3 Qc4 Ra3 Qcd3 Rf3 Rg5 Rf8 Bh8 Rf7 Rge5 Rf2 Bg7+
1NQ2Qb1/2n3p1/1rB4r/bRB3bp/NQr3N1/pqP2Rnb/3k3p/K3q3 w - - 0 1 illegal: No proof kernel
1R1Qrr2/2bn1bp1/6Rp/5n2/1NpRqpBQ/q4B2/rnP2K1N/k5nB w - - 0 1 illegal: No proof kernel
b3q3/Q3pk1B/1rR2b1n/1B6/n2Q2pP/Qpp1b3/Rq1Nnrn1/1NB1K3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 h4 b5 a4 g5 d4 c5 f4 b3 f5 c3 d5 c2 d6 g3 f6 b2 a5 e3 a6 b4 d7+ Kf7 a7 c4 Ra2 g2 Bd2 c1B Qg4 c3 Qd4 b3 Ne2 g1N Bg2 g4 Bf1 Na6 Ng3 e2 Ra3 Nh6 Ra4 Bg7 Ra2 Rb8 a8B Rf8 Be4 Nc5 Bh7 Bb7 Ne4 Na4 Qa7 Qe8 d8Q Ba8 Qdd4 Rb6 Rh3 Bh8 Rd3 Bg7 Bf4 Be3 Rd1 Bh8 Ned2 Bg7 Bg2 Bh8 Bc6 Bg7 Bb5 Bh8 Na3 b1Q Bg5 Qb2 Rda1 Ke6 f7 Bf6 Nab1 Bf4 Kf2 e1N Kf1 Ng2 Kf2 Rh8 f8Q Be3+ Kf1 Nf4 Ke1 Nge2 Qg8+ Qf7 Qgb8 Qe8 Qbd6+ Kf7 Q6b4 Nc5 Ra6 Na4 Ra2 Rf8 Qa3 Rb8 Re6 Rb6 Rc6 Nh3 Qb7 Bh8 Rc7 Bg1 Qe3 Kg7 Qa7 Rf3 Qec5 Kf7 Nc4 Bf6 Bc1 Be3 Rc6 Rf2 Ncd2 Nhf4 Qd4 Ng2+
3Kq1Q1/4p2b/NpR1NN2/3p4/rQn2pnP/2BBr3/nn1Rq2k/3R2bq w - - 0 1 illegal: No proof kernel
1rrR4/n1P1q2b/4pB2/Q1Np1B2/1nk1B2p/1N1N2pR/4r1qn/2bn2KQ w - - 0 1 illegal: No proof kernel
n1B4r/r1p1P2Q/R3QB1K/1Q1N4/2bbpqn1/p1b5/b1p2B1k/qRN3q1 w - - 0 1 illegal: No possible last move
7n/1pqB2K1/7r/b1QQprr1/1P1N4/1p1RNpqN/b2rQ3/1B1Rn1qk w - - 0 1 illegal: No proof kernel
4Kq2/1pN4B/1nQbnp1q/Q3Nb1k/3Rp3/2R3nP/pR1r2bB/2n2r1Q w - - 0 1 illegal: No proof kernel
1b1n1n2/p2rR3/Q1K1n1b1/1p3BRp/NQ2N2r/5Pr1/1BBp1q2/Qqn3k1 w - - 0 1 illegal: No proof kernel
Q1n5/pnR1Q1R1/Kb2B2N/1p1rpPn1/N3bk2/B2p4/N1Q3q1/4qbrn w - - 0 1 illegal: No proof kernel
n5Nr/p2n1QQ1/2n1qBp1/8/Bb2B3/q1pb4/qPp1R3/1kqNKrRR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 h4 Kd7 e4 Kd6 d4 c5 e5+ Kd5 h5 Ke4 h6 f5 d5 a3 h7 g6 e6 c3 d6 g3 d7 g2 e7 c4 e8B c2 Be2 f3 Rh5 f2+ Kd2 f1Q Nf3 g1Q Rh6 a2 Bf7 Qe8 d8R Nd7 Rh1 Ne7 Ne5 Qh3 Bh5 Qa3 Nd3 Ba6 Nf4 Nc6 Qf1 Bb4+ Ke2 Qe6 Nd5 f4 Bd2 f3+ Ke1 Qg5 Rg8 Rf8 Ne7 Qgd5 Bc3 Ke3 Be8 Nb6 Bg4 Na8 Bf5 Rf6 Nd2 Rf7 Bf6 c3 Rg7 Bd3 Ne4 Qda5 Rc1 a1N Nf2 Nb3 Be4 Nc5 Ng8 Nd7 Rb1 Rf8 Re7 Qad5 Bh4 Qda2 Nd1+ Kd4 Rg1 Kc4 Bf6 Kb3 Nh6 Rhg8 h8Q Rf7 Qg7 Rh8 Ng8 Rf8 Qe2 f2+ Kf1 Qa1 Be5 Ka2 Ne3 Rh4 Bh1 Qeb3 Rg3 Ndb6 Bg2 Na5 Ba4 Qf7 Re1 Qc1 Nd1 Nd7 Rh3 Qfb3 Rh1 Nc6 Bd4 Rh3 Re3 Qc4 Be4 Rh8 Rg3 Kb1 Rgg1 Qcb3 Be5 Ba6 Qc4 Bb5 Bd3 Qba2 Bd4 Rf5 Bf6 Rf4 Qcf7 Ba6 Kg2 f1Q+ Kg3 Qe2 Bf5 Qe7 Be4 Bd3 Re2 Qee6 Kg2 Rfh4 Kf2 Rf4+ Ke1 Rf1+
KBR1bq2/p4bp1/kr3B2/N2p1r1q/4nQRQ/b1N2PN1/Bb4np/5n2 w - - 0 1 illegal: No proof kernel
3R1n2/NKNbP1rp/n1n1p1n1/BQ2QR2/n2r2p1/3p2n1/BbR1q2k/4N3 w - - 0 1 illegal: No proof kernel
2r1N1n1/B6R/2pQ1bB1/5Q2/KN1p3p/R2q2b1/1Pp1r1Rn/b1kbnnN1 w - - 0 1 illegal: No proof kernel
2n1b1q1/2P1QnKp/B2b1rp1/k1p3p1/bp6/R2NQ1B1/1r4Nn/r1R3BR w - - 0 1 illegal: No possible last move
b6K/pnBR3P/4p2p/p4BbN/2rq1R2/n1N2b2/3Qr1pk/rQn1BR2 w - - 0 1 illegal: No proof kernel
3nn1N1/1B1q3q/4B1K1/1Rnb2Q1/1Bppp1p1/1QNQ1Rr1/2p1qbP1/kr6 w - - 0 1 illegal: No proof kernel
1QRR1b2/1bN3k1/1r5q/q1R1rpNn/p3Qp2/n1Pr2p1/1KB1pqNB/8 w - - 0 1 illegal: No proof kernel
1N1r1Q2/1RnbB2k/3R2pq/NPb1Q2p/r1n3pp/NK3b2/q1B1r1p1/4B3 w - - 0 1 illegal: Other
2qq1r2/1bQB3p/3N1NQ1/1r2n1p1/K2b1q1r/2P5/p1R1p1pn/kNB1BR2 w - - 0 1 illegal: No proof kernel
1q1b1k2/3Bp1p1/RK1p1p2/1nR1p2N/1P6/r3nQRq/2QNrB2/2Bnqb2 w - - 0 1 illegal: Other
Qbn2RQn/2pR1NBr/2B5/Nb2qK2/2qppn1p/2kP1rp1/4bN2/6Q1 w - - 0 1 illegal: No proof kernel
KN1r1q2/prQn3b/pr3N2/n3R3/P4QNR/6p1/p1B1pb2/qB2Bkq1 w - - 0 1 illegal: No proof kernel
Q1K1n1r1/pRb2p2/1Bp2q2/p1NQ4/1q4bk/nB1R1pR1/r2n3P/1N1N2q1 w - - 0 1 legal: proof: f4 d5 g4 e5 c4 dxc4 a4 exf4 a5 h5 a6 hxg4 Qc2 bxa6 Qd1 a5 Kf2 Ke7 b4 Kf6 e4 Kg5 d4 c3 b5 g6 e5 c6 d5 g3+ Kf3 c2 Ke4 g2 d6 Rh4 b6 Nd7 b7 Nb6 b8N Bg4 e6 Nf6+ Ke5 Bh5 d7 Ne8 Ne2 g1N Be3 c1Q e7 Qc5+ Qd5 Qb4 Na6 Rg4 Ra2 Rg2 Nec3 Kh4 Bc4 g5 Rb2 g4 Bb3 g3 Nc5 Rd2 Nd1 g2 Rc2 Rc8 Rc3 Ra2 Bd4 Ra8 Rg3 Nf3+ Kf5 Ne1 Ke5 f3 Rf1 g1Q Be3 Nc7 Kd6 Nc2 Re1 Bg7 e8Q Na3 Re2 Qg5 d8R Nbc4+ Kd7 Be5 Rb2 Nd2 Qh8 Ne8 Qg8 Bb8 Kc8 Qf6 Rd7 Qc4 Rb7 Qb5 Rc2 Qc4 Rc3 Qb4 Rd3 Bc7+ Kd7 Nd6 Qh8 Rg8 Bf2 Rg7 Qa8 Ne8 Kc8 Rg8 Ne4 Qc4 Bb6 Qb4 Nc5 Bg4+
QN2k3/1bKnp3/2b2n2/2q3P1/pp1Q1b1b/rp1BB1p1/2R4b/N1r1B1RR w - - 0 1 illegal: No proof kernel
n1rBn2K/6p1/n1BbR1BN/1N3Q2/bb1p1N2/P2p1pk1/2Q1qp2/rb2R3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Ke5 h4 b5 c5 d5 h5 f5 c6 d3 h6 g3+ Kf3 d4 h7 b3 c7 g2 Na3 b2 Ne2 g1B Rh2 b1N Qc2 b4 Bg2 b3 Nb5 b2 Rh6 Bd7 c8Q Bb4 a3 Nc3 Be3 Nf6 Re1 b1B Bf2 Qf8 Bh4 Ne8 Bd8 Qe7 Rb6 Rf8 h8N Na4 Ra6 Nb6 Nf7+ Kf6 Nh6 Kg5 e5 Kh4 e6 Bh2 Na7 Ba4 Nb5 Rf6 Bh1 Rg6 Q8c5 Rg1 Qe5 Qf6 e7 Qe6 Bg2 N6d7 Rd6 Nb6 Bh1 Qa2 Re6 Na6 Qd5 Rc8 Qd7 Nf6 e8B Na8 Bg6 Qb2 Kf2 Qa2 Bc6 f3 Qf7 Bhd6 Nf4 Rh1 Qf8 Kg5 Kg3 f2 Kf3 Kh4 Nh3 Be7 Kf4 Ne8 Ke5 f4 Kf5 f3 Nf4 Kg3 Qf6 Bbc5 Kg5 Bed6 Qf5 Rf1 Bf7 Bb4 Kg6 Bc3 Kh7 N6c7 R1e2 Bcb4 Kh8 Na6 Qd2 Bbc2 Bg6 Ra1 Re1 Bb1 Qc1 Qd2 Qc2 Qe2
6q1/3p2Q1/kB1bN1pp/n2N2rp/rrbPB2R/6Q1/2nBbp1b/RK5R w - - 0 1 illegal: No proof kernel
1N3N2/Q2p3R/P1Q1pbnp/p1Bn3k/B3n2q/1b1p2r1/2Rr3q/RN1K1n2 w - - 0 1 illegal: No proof kernel
1R1N2r1/8/3b1pn1/Q2Kp1P1/n3QNbQ/p1Rp1pp1/BbqB1r2/3kr2N w - - 0 1 illegal: No proof kernel
kb5N/4pp1R/B1p5/qRqbB1Kn/1p2n2p/PR1Q1b1N/r1Qpr2Q/8 w - - 0 1 illegal: No proof kernel
BN2qQ2/1P2pbrp/N4Bkb/bB3p2/3nrqN1/1pQpp3/1R2n3/3R3K w - - 0 1 illegal: No proof kernel
q2B1k2/1pp1n1q1/1nr3Bp/2pNRKp1/NRN2P2/3Q1Q2/pb2r1Q1/4b2b w - - 0 1 illegal: No proof kernel
N1Rq3r/b7/2q3Bb/4kBq1/1rP3nR/2n1N2r/Qbn1Kp1N/N6N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 a5 b6 a4 b3 a3 Bb2 Ba6 Bc3 dxc3 Qc1 Bb5 Qd1 Ba4 bxa4 Qe7 Kf2 Qg5 Ke1 Qd8 e4 Ke7 g4 Kf6 a5 d5 a6 h5 a7 f3 g5+ Ke5 b7 f5 g6 c2 g7 c1B Rh3 f2+ Ke2 d4 Qb3 a2 Qe3 d3+ Kf3 d2 Na3 d1N Qb3 f4 Ke2 Nf6 g8N Bc5 Ne7 Na6 b8N Ng4 Nf5 Nb4 Na6 Nc2 Nb4 Rb8 a8N Ba7 Nd5 Rb4 Nde3 Bb2 Rb1 a1B Ng3 Qg5 Rh2 h3 Nh1 h4 Qa2 Bc1 Rb3 Bab2 Rd3 Bd2 Rd8 Bdc1 Rc8 f3+ Kd3 Nc3 Bg2 Kf4 e5 f1R e6 f2 e7 Ke5 e8B Qd8+ Nd5 Bh6 Bg6 Re1 B2e4 Re3+ Kd2 Qg5 Bef5 Qd8 Rg2 h2 Rg3 Qg5 Rh3 Rg3+ Ne3 Rf3 Ng3 h1Q Rh2 Qg2 Nh1 Rh3 Kd3 Qc6 Kd2 Ne1 Nc2 Qb6 Na1 Nc2 Rg2 Qc7 Rg3 Qa5 Rf3 Qc7 Rf4 Qcd8+ Rd4 Rf3 Kd3 h3 Kd2 h2 Kd3 Nb5 Ke2 Rh3 Nf3+ Kf6 Ng3 h1Q Nh2 Qc6 Nh1 Ke5 Rf4 Nf6 Rh4 Ng4 Bh5 Qde7 Bf7 Qd8 B7g6 Nc3+
4N1q1/1q4rp/B3R2p/rQRN3K/2N2qn1/2qB3b/P2Nnn1n/1N4k1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 h4 axb4 h5 b3 h6 gxh6 d4 c5 Na3 c4 Be3 b2 Rc1 b1Q Rc2 Bc5 dxc5 Qb2 Bd4 Qb1 Ba1 Qxa1 Kf2 Ke7 Kf3 Kf6 e4 Ke5 g4 b5 d6 f5 d7 c3 c6 b4 g5 b3 g6 b2 g7 b1Q c7 Ra5 Rch2 c2 Rh5 c1N Nh3 Qb7 Nb1 Nc6 Qa4 Qc3+ Bd3 Ne2 Ng1 Nf6 g8N Ng4 Ne7 Rg8 Nd5 Nf2 Qb5 Kd4 e5 Rg7 e6 Qg8 d8N Bd7 e7 Bc8 Rg5 Ne5+ Kg2 Bd7 c8B Neg4 e8N Be6 Nf7 f3+ Kf1 f4 Nfd6 Bd7 Rg6 Bf5 Rh5 Be6 Nb4 Ke3 Rc5 Nh3 Rf6 f2 Nf3 Bd7 Kg2 f1N Rg6 Nfh2 Rf6 Nhf2 Re6+ Ne4 Kh3 Kf2 Nfd2 f3 Kh4 Kg1 N6c4 f2 Nd5 f1Q Kh5 Qf4 Rf6 Nef2 Re6 Qc6 Ba6 Qb7 Rec6 Ne3 Rd6 Bh3 Re6 Neg4
2B2r2/q1R2pP1/2p1b1b1/1Nb1Q3/1B2n1N1/R3r2N/1p1N2N1/bqk1Kb2 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 c5 axb4 c6 g5 cxd7+ Ke7 d4 c6 h4 gxh4 d5 Na6 a3 Nc7 d6+ Ke6 dxc7 bxa3 Qb3+ Kf6 Qd1 Ke7 e4 Ke6 g4 Ke5 g5 b5 g6 h5 g7 b4 Qa4 Kd4 e5 f3 e6 f2+ Kd2 h3 e7 h2 e8N h4 Nh3 a2 Qa5 b3 Qa7+ Bc5 Nf6 b2 Qb8 Ra3 Ng4 Qe7 d8N Be6 c8N Qa7 Nd6 Re3 Ba6 f1B Bc8 Nf6 Nb5+ Ke4 Kd1 Kd3 Qe5 Ne4 Nd2 Rf8 Rg1 h1Q Rg3 Rf3 Ke1 Kc2 Rg2 Re3+ Re2 Bf5 Ne6 Bg6 Nef4 Qg1 Nhf2 h3 Ng2 h2 Nh3 h1B Nh4 Bf3 Ng2 Ra3 Re3 B3e2 Rb3 Bc4 Rd3 Qh1 Rd7 Be6 Rc7 Qg1 Nb3 Qh1 Bd2 Qg1 Bb4 Qh1 Rd1 a1B Rd3 Qg1 Nd2 Kc1 Qd6 Qd4 Re3 Qd3 Qe5 Qb1 Rd3 Rc3 Rg3 Rc2 Rb3 Rc3 Ra3 Re3+
1B2Bn2/1nR4b/BKnrN2p/1Bnp1pqN/3p4/1b1P4/1nQR4/6Bk w - - 0 1 legal: proof: h4 c5 f4 g5 b4 gxh4 b5 e5 c3 exf4 Qc2 a6 Qf5 axb5 Qd3 b4 a4 b5 Qf5 b3 Na3 b4 Qb1 b2 Qd3 b3 Nb1 Ra5 Qd4 Rb5 axb5 cxd4 Kf2 Be7 Ke1 Bb4 cxb4 Ba6 Rh2 Bb7 Rh1 Bc8 Kf2 Ke7 e4 Kd6 g4 Ke5 b6 f3 b7 Kf4 g5 h6 e5 h3 e6 d6 b5 f6 g6 h2 g7 Nd7 b8Q Nf8 e7 Be6 e8B Ne7 g8B Nc6 Nc3 b1B b6 b2 b7 Bh7 Qc7 b1N b8B Na3 Bb5 Nc4 Ra2 N4a5 Na4 Nb7 Nc5 Bb3 Bgc4 f5 Ne6+ Kg4 Ne2 Kh3 Ng3 Qg5 Nh5 d5 d3 Rg8 Be3 Rg6 Rc1 h1N+ Ke1 f2+ Kd2 Kg2 Ba6 Na7 Bcb5 Ng3 Qc2 f1N+ Kd1+ Kh1 Bg1 Nd2 Neg7 Ndf1 Raa1 Bc4 Qc3 Nd7 Kc2 Re6 Ra2 Rd6 Ne6 Nd2 Kb2 Nf8 Ka3 Bb3 Kb4 Nc4 Rd2 Ne4 Qb2 Nca5 Rc7 Nc4 Qc1 Nb2 Qc2 Nd8 Ka5 Nac6+ Kb6 Nb7 Bf7 Nec5 Bg6 Qf4 Be8 Qg5
nRK4N/1Q3r1k/b3RPn1/4r2q/qRr1R1qN/1b6/bBn4B/2n1R1q1 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e3 axb4 Bg2 e6 Be4 fxe4 g5 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Kf2 g4 Kf1 Ne7 Ke1 Ng8 Ke2 Kf7 a4 d5 c4 b5 h4 g5 c5 Kg7 h5 b3 f6+ Kh7 f5 b4 h6 e5 f7 b2 f8R b3 c6 g3 f6 g2 a5 g4 a6 e3 Kd3 e4+ Ke2 d3+ Ke1 d2+ Ke2 d4 a7 g3 c7 Qd5 Nh3 g1Q Rd8 g2 Rf8 Nd7 Ra6 Nb6 Re8 Ne7 Qe1 Ng6 Nf4 Rf8 Rh4 d1R Qb4 Rf7 Nd2 b1Q Bb2 Qa1 Nf3 Qh5 Re5 Bb7 c8R Rc1 Rc4 Re8 a8R Qa4 Rb8 Na8 Rae6 Ba6 Qb7 Rc3 Rg4 Rc1 Nh4 Ree7 Ba3 b2 Bd6 b1B Ba3 Nf8 Nfg6 Ba2 Nh8 Ng6 Bb2 Re8 Rb5 Ree7 Rcb4 Rc4 Rf5 Re8 Rf1 Ree7 Re1 Re8 Reb6 Re5 Rc6 Qa5 Re6 d3+ Kd1 e2+ Kd2 Qa4 Rf4 Qf1 Ke3 d2 Rg4 d1B Rf4 Rcc5 Kd4 e3 Re4 Rc1 Qd5 Bc2 Kc5 g1Q Kd6 Qh3 Qb5 Q3g4 Qb7 Qa3 Kc6 Bcb3+ Kd6 Ne7 Kd7 Ng6+ Ke8 Qa4+ Kd8 Nc7 Kc8 Rc4 Rb1 e1N Rc1 Nd3 Re1 Kg8 h7+ Kf8 Bc1 e2 Bf4 Nc1 Bh2 Rd7 Nf7 Re7 h8B Kg8 Bg7 Kh7 Nh8 Rf7 Bf8 Na8+ Bc5 Nc7 Bd4 Na8+ Kd8 Qf2 Bb2 Qe3 Rh1 e1N Rg1 Nc2 Re1 Rd4+ Kc8 Qeg1 R4e2 Rde4 Re3 Rd4 Re4 Rc4+
2b3K1/q1n1P3/k3r3/1qn1nb2/NnQ1n3/Nb1NN1Bq/Bb4n1/R1R2N2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 h4 exf4 g3 b5 Qd3 g5 Qd2 Ra6 Qd1 Rg6 Rh3 g4 Rh1 Rg5 hxg5 fxg3 Kd2 f5 Kd3 d5 a4 Kd7 c4 Kc7 e4 Kb6 g6 h5 a5+ Ka6 c5 b3 g7 b4 e5 f4 c6 b2 e6 g2 e7 b3 c7 g3 Qg4 h4 Qd1 h3 Na3 b1N Nc2 f3 Bb2 h2 Qc1 f2 Na3 Nd2 Nc4 Nc6 Qb1 Nb4+ Ke2 d3+ Ke3 d4+ Kf4 Qe8 Kg5 Qb5+ Kg6 Nf6 Kf7 Nfe4 g8N Bg7 Bc1 b2 Ne2 g1N Nb6 g2 Nd5 Nc5 Ng3 Rh6 Ne3 Nde4 Qa2 b1B Qc4 d2 Nf6 d1N Nfg4 d3 Ne5 d2 Kg8 Nf3 Nd3 g1Q Bg2 Rc6 Ngf1 Ndc3 Bh3 d1N Be6 Ncd5 Bd2 Ne5 Be1 Bc2 Bf7 Bf5 c8N Re6 Nb6 Nc7 Na4 Bb3 Rc1 Ndc3 Ra1 N3d5 Rc1 Nf4 Ra1 Ka7 a6 Ng2 Rc1 Ng6 Ra1 Bb2 Rc1 Ne5 Ra1 Ka8 a7 Kb7 a8N Ka7 N8b6 Ka6 Nd2 f1Q Bg3 Qf3 Ndf1 Qh5 Qd4 Qh3 Nbc4 Qf2 Rg1 h1B Na3 Nf4 Rc1 Bf3 Qc4 Ng2 Nd2 Be2 Rge1 Beg4 Ndf1 Rd6 Bd5 Bc8 Ra1 Bgf5 Rec1 Re6 Qd4 Bc2 Ba2 Bb3 Qc4 Ncd7 Nd1 Qa7 Nde3 Ndc5
n1N2b2/Q4r2/1brp3P/2rq3K/4N1B1/4RR1N/n3q1bB/NnbNq2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 Ke5 b4 a5 c4 f5 b6 g5 b5 d3 c5 g3+ Kf3 g2 h5 g4+ Kf2 a4 h6 d2 b7 a3 b6 a2 c6 f3 Kg3 f4+ Kh2 g3+ Kh3 f2 Kg4 f3 c7 Nf6+ Kg5 Ra6 Kh4 Kf4 e5 Ne8+ Kh5 Nc6 b8N Bb7 c8N Nc7 e6 Na8 e7 Nb4 Bb5 f1N e8N f2 Nf3 g1Q Nc6 g2 Nh4 Kg3 Nf3 d6 Rh4 Qe7 Na5 Qe2 Rf4 Kh3 Qb3 d1Q Nf6 Nd2 Qd5 f1R Nc3 Nb1 Nfe4 Qdd2 Nb3 Qge3 Be8 g1B Bd7+ Kg2 Nd1 Kh1 Bg4 Rh7 Nfg5 Rf7 Rf6 Rf5 Re6 Bc6 b7 Qg3 b8Q Qge1 Bb2 Bb6 Be5 Bb7 Bh2 Re5 Qc4 Rc5 Qa7 Bd5 Nh3 Bb7+ Neg5 Bg2 Re5 Nc3 Rc1 a1B Qd5 Nba2 Ne4 Nb1 Rc3 Bb2 Rf3 Bc1 Re8 Raa5 Na1 Rc6 Neg5 Rb5 Ree3 Rbc5 Ne4 Qxd5+
NNqRn2r/3r1P2/R2p2qb/2R1bkrq/5bn1/1B5K/2qnB3/4RQR1 w - - 0 1 illegal: No possible last move
2Kn1Nbb/4B1R1/PRR1R1qq/Q4N2/1q1b4/n1r4k/1r4Rp/qq1b2B1 w - - 0 1 legal: proof: b4 d5 h4 a5 c4 axb4 cxd5 g5 f4 gxh4 e3 e5 a3 exf4 Bd3 Nf6 Bc4 Ng8 Ba2 b3 Qh5 bxa2 Qe2 Ra4 Qd1 Ra8 Ke2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 d4 c5 g4 h5 d6 f5 e4 b4 d7 h3 Ke6 Kh4 g5 b3 e5 c4 a4 c3 d5 c2 d6 b2 g6 f3 g7 f4 a5 f2 a6 f1Q Qe2 f3 Be3 c1Q Qh2 f2 Bf4 Qfc4+ Kf5 f1Q e6 Nf6 g8R Qb6 d8B Bg7 d7 Nc6 e7 Ne4 Na3 Nc3 Rb1 a1B Qd2 Nb5 Nc2 Na3 Ne2 Rb8 Ng3 Rh7 Qe1 Bh8 e8R+ Re7 Rg5 Re3 Rh2 Qd2 Rc1 b1B Re2 Ba2 Nd4 Bb7 Ne6 Bad4 Nf8 Qd1 Rcc2 Qa1 Qa5 Qfb1 Be5 Qcb5 Rf2 Bg8 Rg2 Rb3 Bf6 Rc8 d8R Qb4 Bc7 Rb2 Rd6 Nd8 Re3 Bc6 Be7 Bf3 Rf6 Q6d6 Rg7 Bd1 Ree2 Qc6 Bf4 Qe8 Be3 Rc6 Bg1 Qg6+ Kf4 Rc7 Rc5 Rc8 Rb5 Rc3 Rbb6 h2 Re3 h1Q Rfc6+ Bf6+ Re4 Qb3 Ree6 Qa4+ Bb4 Bd4 Bc5 Qb4 Bd6 Bf2+ Ke5 Bd4+ Kd5 Kg4 Be7 h4 Nf5+ Rg3 Bc5 h3 Kd6 Qh2 Kc7 Qh1 Rge2 Rc3 Be7 Qh2+ Kd7 Qf4 Kc8 h2 Rc2 Qh6 Rg2+ Kh3
Q1N3kq/P1NB3b/3q4/1qnr2rK/R1q5/1r2R3/rn1pB1b1/Rq3RR1 w - - 0 1 illegal: No possible last move, all moves rejected
nr5K/1q2qb1R/1NqBb2R/2nN4/1qR2r2/QR6/2PppkBq/6bR w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 Kf7 g4 Kg6 f4 d5 f5+ Kg5 f6 Kf4 f7 Kg3 b6 e5 g5 h5 b7 d3 Ke3 b3 g6 d4+ Kd2 h3 g7 b2 Na3 b1Q Be2 h2 Bf3 h4 Bg2 h3 Bf3 e3+ Ke1 e2 Kd2 e4 Nb5 Rh4 Bg2 Kf2 Ra4 Nd7 b8R Ne7 g8R Nc5 Na3 Be6 Nc4 Qb7 Ra6 Nd5 Rb6 Nc7 Rg4 Qe7 Ba3 Qc6 Rg7 Rf4 Qa1 Qb7 Rc8 Rb8 Rb3 Na8 Rh7 Bg7 f8R e3+ Kc1 e1Q+ Kb2 d2 Nb6 d1B Rfh8 Bf3 Ne2 d3+ Nc3 e2 Qa2 Bf8 Ncd5 Bh5 Rc6 d2 Kc3 Qb1 Bb4 Bhf7 Qa3 Nd3 Rc4 Nc5 Rh6 Qc6 R8h7 Qcb7 Rd1 h1Q Re1 Qh2 Rh1 Nd7 Bd6 Nc5 Be4 Qc6 Kd4 Qcb7 Ke5 Qc6 Rbc3 Qb4 Bf3 Qg2 Be4 h2 Rb3 Qg3 Bg2 Qgh4 Re1 h1Q Ra1 Q1h2 Rh1 Qeb7 Rd1 Na6 Bc7 Bc5 Bd6 Be3 Rh1 Kg3 Qa1 Nc5 Qa3 Bf5 Qc1 Qd8 Qa3 Qdc7 Kf6 B5e6+ Kg7 Qe7 Bf3 Bg1 Be4+ Kf2 Bg2 Be8+ Kh8 B8f7+
1B2q1rN/r3r1p1/B1bqNb2/r2B4/BB4kr/q4p1R/5KnP/n3RQ2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 c4 Ke7 e4 Ke6 b6 d5 e5 Kf5 c5 d3 c6 b3 e6 d2+ Kf2 g3+ Ke2 g2 b7 d4 c7 d3+ Kf2 f3 e7 b2 e8B Nf6 Qc2 d1R Nh3 g1R Nf4 Nd5 Be2 Na6 b8B Rg8 Nd2 b1R Ra4 Rg4 Bb2 Bd7 c8B Ra1 Rc4 Ne3 Qb3 Nc5 Qc2 Nb3 Ba7 Be7 Ba6 Ng2 Rc7 Re1 Rc8 Bf6 Nb1 Rh4 Ba3 Kg4 Nd2 Bc6 Ne4 d2 Nd6 d1Q Bec4 Re7 Bb8 Raa7 Bb4 Ra5 Qc1 Na1 Bd5 Qa4 Ne6 Qa3 Bd7 Qf8 Re1 Qe8 Kf1 f2 Rd8 Bb7 Ba4 Bc6 Rc8 Ba8 Rc3 Bc6 Ke2 f1Q+ Kd2 Qc8 Rh3 Qf4+ Ke2 Qe5+ Kf2 Qe8 Nb7 Qd6 Nbd8 Bg5 Qb1 f5 Nf7 f4 Nh8 f3 Qd1 Bf6 Qe2 Bb2 Qf1 Bf6
N2K1br1/b1N1n2b/1qQ1prB1/1N1RrN2/1b4p1/4q3/1BP1R1q1/1nN2k2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 c5 d4 cxd4 Kd2 f5 Ke1 b5 axb5 fxe4 Bh6 axb4 Bd2 Rh4 Bc1 Rh8 Kd2 Kf7 f4 Ke6 h4 Kd5 f5 g5 f6 d3 Ke3 d2 b6 g3 h5 g4 Kf4 Kd4 Kg5 Ke3 h6 Kf2 f7 d5 b7 e3 h7 d4 Nc3 b3 Nb1 e2 Ba3 e1B Rh6 d3 Rh2+ g2 Bd6 b2 Nc3 b1Q Nge2 Qe8 Ra5 Nc6 b8N Nf6 Ba3 Bf5 Rd5 Qb6 Nd7 Ra6 Nc1 Bg6 Bb2 Rg8 h8N Bh7+ Ng6 Ne4+ Kf5 Qa8 Nb5 Nc3 Ke6 Nb1 Nh4 Qe8 Rh3 g1B Nf5 Qa8 Be2 Qe8 Bf3 Kf1 Be4 Bf2 Qf3 d1Q Rh4 d2 Rh2 Qe2 Rg2 d1R Rh2 Qb7 Nb6 Bb4 Na8 Qb6 Qc3 Qd2 Qc5 Bg1 Re2 Re1 Qc3 Qde3 Qc5 Qeb8 Kd7 Qh2 Qc4 Qg2 Qc5 Na7 Qc6 Nc8 Bd3 Bh2 Be4 Bb8 Bd3 Ba7 Ke8 Bh6+ f8N Bg7 Kd7 Bh6 Ne6 Bf8 Ke8 Ra4 Nfd4 Ba5 Rd7 Qee4 Nec7 e6 Kd8 Ne7 Rd5 Qe5 Bf5 Ra3 Re3 Bb4 Re4 Rf3 Bg6 Rf6 Nf5 Qc3 Red4 Re4 Rd2 Qce3 Re2 Re5
B5N1/qNN1n1rr/BPb1QR2/q1pN1p2/5q2/1n6/1k1r1R2/2nb1KNq w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 f5 f4 b5 g5 bxa4 b3 h6 Ba3 e6 Bc5 Be7 Bf2 e5 Bh4 Bf6 gxf6 exf4 Bg5 hxg5 e4 Kd7 d4 Ke6 h4 c5 b4 a5 h5 g4 e5 Kd5 e6 g5 h6 c3 b5 c2 e7 c1N e8B a3 h7 a2 b6 f3 f7 a4 f8N f2+ Kd2 a3 Qc2 g3 Ba6 f1B Ke1 g4 Qh2 g2 Bab5 g3 Ba4 Kc4 d5 Qh4 d6 Ne7 d7 Be2 d8N Bb7 Bed7 Nbc6 Nfe6 Na5 Bdc6 Nab3 Nc3 Qf4 Nc7 Bd1 N3d5 Ra7 Rb1 a1Q Qh6 a2 Qe6 Ba8 Nb7 Rd8 h8N Rd7 Ne3+ Kc3 Bab5 Rd2 Ned5+ Kc2 Bc4 Qg7 Ba6 a1Q Ng6 Qa5 Ra1 Kb2 Rh6 Qf7 Nf8 Qh7 Nd7 Qf7 N7f6 Qh7 Ng8 Qf7 Nh3 g1Q+ Bf1 g2 Rf6 Qh1 Ra2+ Kb1 Rc2 g1R Ra2 Rg7 Ng1 Rh7 Ba6 Rg7 Ra1+ Kb2 Ra3 Na1 Rf3 Nab3 Rf2 Qf8 Nc3 Qb8 Kf1 Rh7 Bg2 Rg7 N3d5 Rh7 Nd8 Bc6 Bf3 Rb7 Be4 Qa7 Bg2 Rb8 Nb7 Rd8 Bf3 Rd7 Nd6 Bb7 Ne3 Ng6 Bc6 Rdg7 Ned5 Bc8 Ba8 Bd7 Nb7 Ne7 Rf8 Be8 Rf6 Bc6
rrR3qN/pB2N1K1/4BBQ1/B3pq1r/1R5q/1b3B2/b2n2P1/n4qkb w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 e4 b5 f4 gxf4 e5 bxa4 e6 Bh6 Ke2 Bg5 hxg5 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 c4 Ke6 b4 Ke5 b5 d5 b6 h5 g6 d3 Kc3 d2 g7 f3 c5 Kf4 Kd4 Kg3 Ke5 Kf2 c6 d4 b7 e3 c7 e2 Nc3 e1Q+ Nce2 h4 Ra3 d3 Rh2 h3 Rb3 a3 Rh1 a2 Rb1 a1Q+ Bb2 h2 Qc1 d1R Qh6 d2 Qg6 Be6 c8B Nf6 g8B Ba2 Bge6 Ne4 Nc3 Qg8 Nd5 Na6 b8B Nb4 Be2 Nc2 Bb7 Rh7 Rc1 Qb1 Bc7 Na1 Ba5 Rh6 Rc8 Rh5+ Bf5 e6 Ne7 Qc2 Bbc3 Rb1 Bb2 d1B Nh3+ Ke3 Rf1 h1B Nf4 f2 Bf3 Nd2 Kf6 Qe4 Rg1 f1Q Be5 Kf2 Bh3 Qd8 Kg7 Bdb3 Bf6 e5 Be6 Qf5 Bfe4 Qfd3 Bf3 Qee4 Rgc1 Qf1 R1c4 Kg1 Rb4 Qed5 Qf7 Qde4 Nfg6 Qh4 Nh8 Rc1 Rb8 Rc8 Qe8 Qd5 Qg6 Re8 Rc8 Rd8 Rc2 Rdb8 Rc6 Qd8 Rc8 Qg8+
N1bNR3/2N1n2q/r2QN2n/1r6/3rbrk1/2PR1r1p/2B1Np1B/3nnK2 w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 a4 Ke7 e4 Ke6 a5 b5 a6 f5 g6 h5 e5 d5 a7 f4 c3 Kf5 e6 d3 g7 h4 e7 d2+ Ke2 f3+ Kd3 b3 e8N b2 Nc7 b4 Nb5 h3 Qe2 d1N Qe1 b3 Qf2 d4 N5a3 g2 Nd2 b1R Nc2 g3 Nb4 b2 Nb3 Nh6 g8N Qh4 Be2 Kg4 Nc5 Nc6 Nba6 Ne7 Bf4 Rh7 Nc7 Rf7 Be5 Rf4 N5e6 Qh5 Kd2 d3 Ke1 Qf5 Bf1 Qh7 Ne2 g1R Qd4 g2 Rh2 Rh1 Qd6 g1N Bg2 d2+ Kf1 f2 Be4 Rb8 a8N Rb4 Bg6 Rf3 Bc2 Rbf4 Ra5 Ra1 Rd5 b1B Rd3 Ra6 Rg2+ Rg3 Ng7 Nf3+ Rg1 Ne1 Nge6 Rh2 Rh1 Rhg2 Rg1 Rgf3 Rh1 Ng6 Ne7 Rgg3 Nc6 Ne7 Ncd8 Rg2 Rd5 Rgg3 Bg6 Be4 Rd3 Kh4 Bf5 Rg5 Rg1 Rh5 Rg8 Rg5 Bg6 Kg4 Re8 Rgf5 Bf6 Rc5 Bh4 Rb5 Bg3 Nb2 Bh2 d1R Re3 Rd4 Rd3 Bd5 Re3 Bdb7 Bc2 Nd1 Rd3 Be4
b7/2RnR1Qb/1r5N/1Bp2NRB/1nr3bn/1Rb5/k2PK1pb/4nR1q w - - 0 1 legal: proof: g4 d5 c4 dxc4 h4 g5 b3 b6 Bb2 gxh4 a4 b5 axb5 e5 f4 exf4 Bd4 Nd7 Bf2 Nb8 Bg3 fxg3 e4 Kd7 b6 Ke6 b7 c5 g5 a5 b4 h5 e5 Kd5 g6 f5 e6 c3 b5 a4 g7 c2 b6 c1N e7 f4 e8R f3 Bh3 Kc4 Be6+ Qd5 Nh3 a3 Qe2+ Kb3 Re7 a2 Qf1 f2+ Kd1 Nd3 Nf4 h3 Bf7 h2 Rc7 h4 Bh5 h3 Ng6 Na6 b8R Nf6 g8B Rh6 b7 Nab4 Ke2 Ne1 Kd1 Bg4+ Qe2 f1N Re8 Nd7 b8R Bd6 Be6 Ra4 Rg1 h1B Na3 h2 Nb5 Be4 Ne7 h1B Ng8 Bh7 Re7 Nh2 Nd4+ Kb2 Bf5 Nhf3 Bd3 Nh4 Nf5 Qf3 Rc1 a1B Bb5 Ka2 Rf1 Re6 Ngh6 Bc3 Rb1 Bf4 Rg8 Rb6 Rg5 Qg2 Qf3 Qg1 Qe2 Ba8 Rb3 g2 Qf3 Qh1 Ke2 Bh3 Qe3 Bh2 Qe5 Bg4+ Ke3 Na6 Qg7 Rc4 Kf2 Nb4 Ke3 Nef3 Ke2 Ne1+
1n6/nr2r2N/Q1NR1P1B/N3q1r1/1N2qpk1/1bB1pNb1/RK4q1/4rq2 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 f4 Bg7 f5 Bh6 e4 Bg7 e5 Bf8 e6 Na6 Bd3 fxe6 f6 Nb8 Bf5 exf5 Kd2 Kf7 c4 Ke6 Kc2 h5 g4 a5 b4 d5 c5 d3+ Kb2 d2 g5 d4 g6 a4 c6 d3 b6 h3 g7 a3+ Kb3 h2 b5 h4 b7 a2 b6 h3 c7 Ra7 Qc2 d1R Ba3 d2 Qc1 Rh7 Kc3 Qd6 Bb4 Re1 Kb2 d1Q Bc3 Qe5 Na3 f4 Nc2 Kf5 Nb4 Kg4 Nf3 Be6 c8N Bb3 Nd6 e6 Qe3 Ne7 g8N Nec6 Nc4 Bc5 Qd3 Bf2 Na5 Re7 Qa6 Bg3 Rg1 h1Q Nh6+ Kh5 Rg2 h2 Rd2 Qg2 Nf7 h1Q N7g5 Kg4 Nh7 Qde2 Rd1 a1R Rc2 Qhg1 Rd6 Q2e4 Rf2 Q1f1 Rc2 Nd7 b8N Rb7 Re2 Na7 N8c6 Nb8 Rf2 Rbc7 b7 Rad1 Rc2 Rd5 Rf2 Nd7 b8B Rb7 Bc7 Nb8 Bd8 Qh5 Bb6 Rg5 Bc5 e5 Rd1 Rec7 Bf8 Re7 Bh6 Qee2+ Ka3 Qg6 Rd7 e4 Rd6 Qb5 Ra2 e3 Rd5 Qe4 Rd6 Bf2 Kb2 Qbe5 Rd1 Bh4+ Rd2 Bf2 Rd6 Bg3+
1Q1N3K/3BqR2/3r2q1/n3q3/3qpR1P/NrR1b1p1/brBR4/2Rq1q1k w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 g4 fxe4 f4 a5 f5 axb4 Bg5 h6 Bc1 Nc6 g5 Ne5 Bf4 Ng4 Be3 N4f6 gxf6 Qc7 Bf4 Qd8 Bg5 hxg5 Kd2 Kf7 h4 d5 a4 e5 c4 b5 a5 d3 Ke3 d4+ Kf2 b3 Kg3 e3 Kg4 d2 a6 b2 a7 b4 c5 d3 c6 e2 c7 e1Q Rh3 b3 Nc3 b1R Rh2 b2 Nce2 Rb8 a8B Qe7 Bh1 Rb3 Ra2 Rh6 Ra1 Be6 Qc2 d1Q c8R d2 Re8 e4 Bh3 Qf1 Nf3 Rg6 Kh5 g4 Qc7 g3 Qd6 g2 Nc3 g1Q Rc8 Qc5 Qd8 Qe5 Nb5 Qg1 Rc7 Qdf1 Nfd4 d1Q+ Bf3 Qff2 Nc6 Qfd4 Rg2 Rh6+ Kg4 g5 Qb8 Rg6 Kh5 g4 Ra3 Bh6 Rd2 Be3 Be2 Qgf1 Bd3 g3+ Bg4 Rc3 Ra1 Ba2 Na3 Rb3 Rc8 Qeb4 Bc2 Ne7 Na5 Qbb6 Rc3 Nc6 Nb7 Na5 Nd8+ Ke8 f7+ Kd7 f8R Rf6 Qa8 Kd6 Rf7 Qe7 Qa7 Ke5 Qb7 Kf4 Qb8+ Rd6 f6 Qfb5+ Kg6 Qbe5 Bc8 Kf3 Kg7 Qa6 Rdd3 Kg2 Rd2+ Kh1 Bd7 Qaf1 Kh7 Qg4 Kh8 Qg6 Rg7 Ra6 f7 Rf6 f8R Re1 Rgg8 b1Q Rf7 Qd1 Rc1 Re2 Rgg7 Rd6 Rf4 Rf6 Rf7 Rg2 Rdd3 Rh2 Bb1 Rc2 Rd2 Rcb2 Bc2 Rd6+
rB1R1b2/3n1QrK/r1N1Bp2/1N1r3N/N4Rq1/1Pr2N1p/5bb1/1b3kr1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 exf6 Bf4 f5 Bc1 f4 h4 g5 g3 Na6 Nh3 Nc7 Ng1 Ne6 Rh3 g4 Rh1 Ng5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ d3 e5 a5 c3 h5 e6 d5 g6 d4 g7 g2 Qc2 h4 Nh3 g1R Be3 a3 Ra2 a4 Qe2 g3 Bc1 g2 Qf2 Qd7 Bf4 Rh6 Rh2 Bb7 Ng5 h3 Bb8 Rg6 Nf3 Nf6 g8N Bd5 Ra1 a2 Ne7 a3 Nc6 Qc8 Be2 Nd7 e7 f6 e8N Rc1 Ng7 g1R Nh5 Rc2 Bd1 d2 b3+ Kd3 c4 Rc3 c5 Ra6 Qg3 Ke3 Qc7 d3 Be2 d1B Rf2 d2 Bc4 Be2 Qa7 d1R Qb7 Bf1 Rd2 Bg8 Be6 Bh7 Rd4 Ke2 Rf4 Bg2 Qc7 Rcc1 Nc3+ Kf1 Nb5 Rc3 Rb1 a1B Qa7 Re1 Rd1 a2 Rd5 Rd1 Qc7 Ne5 Rd8 Rd5 Qf7 Qd7 Na5 Bb2 c6 a1R c7 Ra8 Nc6 R1a6 c8N Bba3 Nbd6 Bc5 Nb6 Bf2 Na4 Qc8 Nb5 Nd7+ Nfe5 Rh6+ Kg4 Bb1 Nf3 Rdd3 Kf5 Rg6 Ncd4 Qc4 Nc6 Rg3 Rg4 Qf4+ Kg6 Rd5+ Bf5 Qg5+ Kh7 Qf4 Rh4 Rg6 Be6 Qf5 Rb4 Qg4 Rf4 Rg7+
k3N3/nRn1R1q1/2B3P1/2pQp1r1/4bRq1/pqr3RN/3Bb2r/b2R1K2 w - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 Ra5 dxc4 Ra4 Qd6 Ra1 Qd8 h4 g5 e4 gxh4 b3 cxb3 Rh2 fxe4 Rh3 Nc6 Rh1 Nb8 g4 Kd7 d4 a5 f4 h5 g5 c5 f5 Kc7 g6 Kb7 f6 e3 d5 h3 d6 e2 d7 a4 f7 h2 b6 b2 Qd4 h4 Nh3 Nf6 Qg1 Qc7 d8R Nd5 Qg2 Bg4 Kf2 e1R Qg1 Bf3 Qg2 Nc6 Rd7 Na7 Qg3 Bg7 f8R Re5 Ra3 Rg5 Ng1 h3 Nd2 b1Q Qg2 Qb3 Ne4 Ba1 Nf6 e5 Bb5 Rhh5 Rh7 Qg7 Kf1 Nc7 Bd2 Rd8 Rf7 Rd3 Ne8 Ka8 Rf4 Rc3 Bd7 Qgg8 Re7 Qg7 Ra2 a3 b7+ Kb8 Bc6 Be4 Nf3 Rh4 Rg1 h1Q Rb2 h2 Rb1 Rh7 Rd1 Rh8 Qf2 Rh4 Qd4 Rh6 Qd5 Qg2+ Ke1 Qg3+ Kf1 Qg4 Rg3 h1B Ng1 Rh2 Nh3 Nc8 Nf2 Ka7 b8R Bhf3 Rb7+ Ka8 Nh3 Na7 Ref7 Bc2 Rd7 Bce4 Re7 Be2+
K3rnrB/N5R1/2R2R2/qbB2qn1/1p5Q/rR2p1pR/q1P5/kbNr4 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e3 axb4 Bg2 e6 Be4 fxe4 g5 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Kf2 g4 Kf1 Ne7 Ke1 Ng8 Kd2 Kf7 h4 Kf6 a4 b5 a5 g5 a6 d5 h5 e5 h6 e3+ Kd3 b3 a7 b4 h7 b2 Ra4 e2 Bd2 e1R Rh5 g3 Ra5 g2 Qe2 g4 Qf3 g3 Na3 b1B Rh3 Nh6 Rc5 Nd7 Qg4 Nf7 Be3 Qa5 Nb5 Ba6 Qh4+ Ng5 Ne2 g1Q Nc1 Nf8 Rc8 Rg8 h8B+ Rg7 Rc3 Qf2 Rb3 Re8 a8R Qf3 Ra7 e4+ Kd2 d3 Bc5 d4 Rd7 Ra8 Na7 Bb5 Rc7 Re8 Rc8 Re3 Rc6+ Kf7 f6 Rg8 f5 Qf4 Kd1 Rf3 Ke1 d2+ Kd1 Rd3 Ke2 e3 Ra3 Nge6 Rb3 Qe5 Kf3 d1R Ne2 Qa2 Nc1 Qc7 Ke4 Ng5+ Kd5 Qca5 Kd6 Rc3 Kd5 d3 Kd6 d2 Kd5 Qa6 Kd6 Q6a3 Kc7 Qa5+ Kb7 Rd3 Rb2 Ra3 Rb3 Rf1 Rb2 d1Q Rb3 Re7+ Ka8 Qf3 Qh6 Rd1 Qh4 Ke8 f7+ Kd7 f6 Qf5 Rc7+ Ke6 Rd7 Ng6+ f8R Ke5 Rc8 Ree8 Rg7 Nf8 f7 Nfe6 f8R Kd5 Qh7 Kc4 Rf6 Nf8 Rd3 Re4 Rcc6 Re8+ Rd8 Kc3 Qh4 Kb2 Rdc8 Re5 Rd8 Re6 Rd3 Ka1 Rb3 Re8+
4q2n/r2Rrb2/nNN1NBpK/1b2p3/1B2kN2/2qq1Np1/1P1n4/3Q1qR1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 bxa4 g5 cxd4 Bg2 e6 Be4 fxe4 e3 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Kf1 g4 Kf2 Rh3 Ke1 Rh8 Kf2 Kf7 Kg3 Kf6 c4 d5 h4 a5 h5 e5 Kh4 e3 h6 e2 Kh5 e1Q c5 g3 c6 g6+ Kh4 d3 c7 d2 h7 a3 Nf3 d4 Qb3 d1Q Be3 a2 Nc3 d3 Qc2 d2 Rg1 a4 Ne2 a3 Bc5 Ba6 c8N Bb5 Ned4 Ra7 Nc6 Na6 Bb4 Qe8 Nb6 Nh6 Qb3 Rg8 h8B+ Rgg7 Qd3 Qb3 Rd1 a1Q Qd4 a2 Qd8+ Kf7 Kg5 Qd3 f6 Ke6 f7 Qef1 Qd4 Qc1 Qd8 Rh7 Bf6 a1N Qd4 Qcc3 f8N+ Kf7 f5 Nb3 Ne6 Re7 Rc1 d1B Nf4 Nd2 Ra1 Be2 Ra5 Bc4 Rd5 Bb5 Rd7 Bd1 Bh8 Bb3 f6 Be6 Qd5 Rg7 Qb3 Rh7 Qd1 Ba2 Nfd5 Ke6 f7 Bac4 Bf6 Bb3 Kh4 Kf5 f8N Ke4 Ne6 Nf7+ Kg4 Rg7 Ndf4 Nh8 Kg5 Bd5 Kh6 Ba2 Rd8 Ra7 Rd7 Re7 Ned8 Bg8 Nde6 Bf7
r7/Pn1q4/2NpRq2/1R2B3/k1BR2r1/1R2p2q/1Kbqbp2/n2QN1Rr w - - 0 1 legal: proof: h4 e5 f4 c5 b4 g5 d4 cxd4 b5 gxh4 b6 axb6 e3 b5 Qe2 b4 Qd1 Bg7 Qd3 e4 Qd1 Be5 fxe5 dxe3 c4 f5 g4 h5 a4 b5 e6 h3 g5 h2 e7 e2 Kd2 e1Q+ Kc2 h4 a5 e3 c5 h3 a6 b3+ Kb2 f4 a7 f3 g6 b4 c6 f2 g7 d6 c7 Kd7 e8R Kc6 Bc4 Ne7 g8R Nd7 Qe2 Rh4 Nf3 Ba6 Qf1 Nf5 Na3 Nc5 Bd3 Qf6+ Kb1 b2 Qe2 Nd4 Rg6 Nc2 Rg4 Nb7 Re6 Qd2 Rd4 Rg4 Rg1 h1R Bc4 h2 c8R+ Kb6 Rc7 Ka5 Qd1 Ka4 Ne1 Bb5 Ka2 b1B+ Kb2 b3 Rc5 Ba6 Ra2 Bb5 Rce5 Ba6 Rb5 Na1+ Nec2 Qa5 Nb4 Bc2 Nc6 Qad8 Kc3 b2 Rb3 b1Q Rab2 Qc8 Rb5 Qc7 R2b3 Qd7 Bd2 Qc1 Be1 Qd2+ Kb2 Qd3 Bc3 Qe2 Rd3 Qd2 Be5 Rc8 Rd4 Ra8 Rg3 Rg1 Rg2 h1Q Rg3 Qh3 Rg2 Rh1 Rg1 Be4+ Nc2 Qb4 Ne1 Bc2 Rc5 Bb5 Bd5 Bf1 Bc4 Be2 Rb5 Qd2
KQrn4/1rrp3p/NP2N1R1/qr1N1n2/5nq1/7R/pBB2r2/1N2bk1N w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 h3 fxg3 Qd3 g5 Qd2 g4 Qd1 g2 Nc3 g3 Nb1 Bb7 Rh2 Bf3 Rh1 Bg4 hxg4 Qe7 Rh2 Qg5 Rh1 Qd8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 c4 a5 b4 f5 c5 d3 g5 f4 c6 d2 g6 Ke3 c7 Kf2 Kb6 f3 Kb7 a3 c8N a4 e4 a2 g7 a3 e5 Nh6 g8N Nf5 b5 Bb4 e6 Nc6 e7 Qa5 Na7 Rc8 e8N Rc7+ Ka8 Nd8 Qb3 d1R Rh3 Rd5 Ne2 g1N Ng7 g2 Ne6 Be1 Ng3 Ne2 Nf6 g1Q Bb2 Nf4 Bd3 Rb7 b6 Rb5 Nh1+ Kg2 Nd5 f2 Qd1 f1R Bc2 Rf2 Qg4+ Kf1 Qg8 Qg4 Qe8 Qd2 Nc6 Rc7 Nb8 Qa5+ Na6 Rb7 Nbc3 Rf8 Rc1 a1R Nb1 a2 Rd1 Rg8 Rdd3 Rf8 Rh6 Rh8 Rg6 Rf8 Rh3 Rg8 Na3 Rc1 Nb1 Rf8 Bb3 Rcc7 Bc2 Nc6 Qb8 Rfc8 Bh8 Nd8 Ba1 Qe2 Bb2 Qg4
k2N1R2/2BP1n1R/np3n2/4R2b/2rRp3/qBRpn1bb/1n3N2/KQ2n3 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 d4 c5 c4 d5 Ke2 Ra5 Kd2 cxd4 Ke1 d3 Na3 d4 Nb1 Rd5 cxd5 Qb6 Nf3 Qc7 Ng1 Qd8 Kd2 Kd7 a4 Kc7 f4 h5 g4 e5 g5 h3 f5 b6 d6+ Kb7 f6 h2 f7 b3 a5 b2 g6 e3+ Ke1 h4 g7 e4 a6+ Ka8 a7 d2+ Ke2 h3 Ra5 Qe7 Na3 b1N Nc4 Nh6 g8R Na6 Ne5 Na3 Rg3 Nc4 Nc6 Nb2 Nd8 Rg8 Qb3 d1N Re5 Bf5 d7 Qa3 Rf3 Bd6 f8R Nf7 Qa2 Bg4 Qb1 Bh5 Ke1 e2 Kd2 e1N Rc3 Ne3 Bc4 d3 Bb3 Nbd1 Bb2 Rg5 Ba1 Nb2 Kc1 Bc7 Qc2 Rg6 Kb1 Rc6 Qd1 Qd6 Ka2 Rc4 Qb1 Qe7 Rd5 Bg3 Rd4 Na4 Bb2 Qd6 Bc1 Nb2 Ka1 Qb4 Nf3 Qe7 Ne5 Qc5 Ng4 Qe7 Rf1 h1N Rf5 h2 Re5 Nf2 Rh8 h1B Rh7 Bg2 Bd2 Nfd1 Nf2 Ng4 Bf4 Qd6 Red5 Qf8 Bc7 Nf6 Re5 Ne3 Nc6 Kb7 a8R Bh3 Rae8 Qe7 Nd8+ Ka8 Rf8 Qa3+
5n1R/qN1r4/1BrrN1N1/1KR2N1r/1BPr2br/N2n1p2/pk1qp1Q1/8 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 fxe6 f5 e5 Be3 e4 Bg5 Qc7 Bc1 Qd8 h4 Nf6 g4 Kf7 g5 Ne8 Bh3 Nf6 Bg4 Ng8 f6 Ke8 Bf5 gxf5 g6 Bh6 Rh2 Qb6 Rh1 Bg5 hxg5 Qd8 Kd2 d5 b4 Kd7 c4 Kd6 g7 Ke5 g6 a5 b5 h5 f7 e3+ Kd3 f4 f8B h4 b6 e2 b7 e1R Qd2 h3 Na3 f3 Qb4 h2 Qd2 Bg4 Nb1 a3 Ra2 a4 Qf2 Rh5 Qf1 Nc6 b8N Ra7 Rd2 a2 Nc3 a1Q Na2 a3 Rd1 Nf6 g8N Nb4+ Kd2 d3 g7 Kd4 Nh6 e5 g8N e4 Be7 Rd7 Nc3 Nh7 Na6 Nf8 Nc5 a2 Ba3 Rh4 Nb1 e3+ Kc1 Qa5 Nb7 Qa7 Qg2 e2 Nh3 Rg1 Kd2 Rh5 Rc1 Qb2+ Rc2 Rd6 Bd8 Rc6 Ne7 Re1 Rf1 h1R Nf4 R1h4 Rh1 Rc1 Rh3 Rh1 Neg6 Rh2 Ke1 d2+ Kf2 d1R Ne6+ Kd3+ Bb6 d4 Nf5 Rh6 Rc1 Qd2 Rc2 Rh7 Rb2 Rd7 Rb3+ Kc2 Rd3 Nd5 Bb4 Nf4 Na3+ Kb2 Re3 d3 Re5 Rhh1 Rc5 Rh5 Rg3 R1h4 Rh3 Qe1+ Ke3 d2 Rd5 Nd3 Kd4 Rb1 Rh1 d1R Rh2 Rcd6 Rh1 Qd2 Rh3 Ne1+ Kc5 Nd3+ Kb5 Rh1 Re5 Rbd1 Rc5 Rc6 Nfe7 Rhd5 Nf5 R5d6 Qg3 Rhh7 Rh5 Rh4 Qg2 Rd4 Rh6 R7d6 Rh5 Rhd7 Rh8 Rdh1 Ng3 Rh5 Nf5 R1h4
1N1b1Brq/1n1nq3/1K1B2B1/p2k1pR1/5Bq1/4RbNB/P4Qbp/5q1b w - - 0 1 illegal: No possible last move
1rn2rq1/1p1N1bk1/3p2p1/3q3R/4B1KR/1p4bB/2R1Pbqq/1R3QRN w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 f5 Rb1 h6 Bf4 Nc6 Bg5 hxg5 Ra1 f4 Nb1 Nce7 Bg2 Rh3 Bf1 Nf5 gxf5 Rh8 Kf2 Kf7 a4 d6 c4 b3 h4 g6 h5 g4 f6 d3 h6 d2 h7 Rb8 a5 Qb6+ c5 Be7 a6 Qb5 a7 Qc6 a8R Qe4 c6 Qd5 c7 Qc6 Bg2 Qe8 R8a4 Be6 Qf1 d1Q c8B Qd5 Nc3 Kf8 f7 Kg7 f8R Bf7 Ne4 Bh4+ Ng3 Ne7 Bf5 Nc8 Rb1 Qee5 Re8 Rf8 Be4 Qh5 h8R Qh7 Rd4 Qg8 Ke1 f2+ Kd2 f3 Ke3 Bf6 Kf4 Be5+ Kg5 Bf4+ Kh4 Be5 Rh5 Bf4 Bh3 Be5 Qe1 f1Q Ra4 f2 Nf3 Qg1 Qf1 Bf4 Ne5 Qh2 Nd7 Be5 Rg1 Bf4 Nh1 g3 Bc2 g2 Kg4 Be5 Be4 Bg3 Qc1 f1Q Rd8 Na7 Rc8 Qf2 Rc2 Nc8 Re1 g1B Qf4 Qa7 Qf1 B1f2 Bf3 Qc4+ Kg5 Qc7 Rah4 Qh8 Qg1 Qaa5+ Kg4 Qg8 Rf1 Qcc3 Be4 Qd5 Qg2 Qcd3 Rg1 Qc3 Qf1 Qe3 Bf5 Qdg2 Bd3 Qc5 Be4 Qd5
2Q2n1K/n1N1n1r1/1ppR2r1/pN1pr3/4bR1B/nN6/1b2nN1P/N3kB2 w - - 0 1 illegal: No proof kernel
b2Q4/Npb2nKN/R3bbNN/3b4/1Bp2PNB/1pp5/r1kb4/4Rqr1 w - - 0 1 illegal: Other
2Rr1rb1/5NBn/P1q1n2b/N1n1K1QB/B1Rnr1b1/1n2q3/2r3r1/4Bk1B w - - 0 1 illegal: No possible last move, all moves rejected
NBr3nK/R1Nr4/1q1bBr2/R1P1Nq2/r2k1qnN/2Nrbr2/b1b5/Q7 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 Na3 g4+ Ke2 d3+ Kf2 b2 Nc4+ Kd4 e5 b1B e6 b4 e7 b3 e8N g3+ Kf3 b2 Nf6 Nd7 Ra4 Bc2 Ra3 b1Q Na5 Bd6 Nb7 Qdb6 Ng4 Ndf6 Nf2 Ng4 Rh3 Be6 Nd8 Ba2 Ne4 Q1b4 Qe1 d1R Nc3 d2 Bc4 Rc8 Bb2 Ra1 a8N d1R Ra5 Rd3+ Ke2 Rc7 Be6 Rd7 Rh6 Rf3 Rg6 Rd1 Rg7 Rdd3 Qa1 Qa4 Nh3 g1R Nf7 g2 Nhg5 Rgf1 Ne5 g1B Bc1 Be3 Rf7 Rd8 Rfa7 Rd7 Bd2 Rd1 Be1 Rb1 Bg3 Qc4 Bh2 Rb4 Bg3 Ra4 Bh2 Ne7 Bg3 Rg8 h8N Rc8 Nhg6 Ng8 Bh2 Rg3 Nh4 f3+ Ke1 f2+ Ke2 Rh3 Bg3 f4 Kf3 Bc7 Nge4 Bb8 Nf6 Bd6 Ne8 Qcb4 Nec7 Qb1 Ng2 Rh6 Nh4 f1R+ Kg2 f3+ Kh3 f2 Bf4 Rh1+ Bh2 f1Q+ Kg3 Bf2+ Kf4 Rf6+ Kg5 Be3+ Kh5 Rf3 Kg6 Qf2 Bg3 Rf1 Bf4 Ne7+ Kh7 Ng8+ Kh8 Qc1 Bg3 Rf6 Nf7 Qf5 Ne5 Rf3 Na6 Bg5 Nf7 Be7 Bb8 Bd6 N6c7 Qd2 Ne5 Qh2 Qb1 Be3 Qa1 Qhf4
qR1K2N1/N2n4/P2b1BRQ/1nBb1B2/1n1r2r1/2rq1n1r/1b4r1/k1bB2B1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 c4 Ke5 a4 g5 h5 d5 f3 b5 c5 d3 Ke3 d4+ Kd2 e3+ Ke1 e2 Kf2 e1N Kg3 b3 h6 b2 h7 d2 c6 b4 a5 b3 c7 d3 a6 Kd4 f4 e5 f5 e4 f6 e3 f7 e2 Ra5 Bd6+ Re5 Be6 f8B Nf6 c8B Nc6 Qc2 d1Q Bg7 d2 Rh4 Bd5 Rh3 Nb4 Qc6 Nf3 Qc7 e1B+ Kg2 g3 Be2 g4 Bf8 Nd7 Nc3 b1N Rh6 b2 Ne4 Na3 Rg6 b1R Re8 Rb2 Qc6 Nb5 Nf6 Qc2 Ng8 d1R Qb6+ Kc3 Be3 Bd2 Bc5 Rc1 Bd1 Qd3 Be7 Ra2 Ne2+ Kb2 Nd4 Ka1 Bf6 Rc3 Nc6 Rb2 Bfd4 Bc1+ Bf2 Re2 Na7 Re4 Bg1 Rd4 Ne7 Rg8 h8B Rg7 Ng8 Rh7 Bf6 Rh3 Bb7 Rc8 Ba8 Rc6 Bb7 Qa8 Rb8 Rc8 Qc6 Re8 Bc8 Ree4 Be2 Nb6 Bf5 Nd7 Qc8 Bb2 Qf8 Rf4 Qh6 Bc1 Kf1 g2+ Kf2 Bb2 Bd1 Rfe4 Bh2 g1B+ Kg2 Be3 Bg1 Bec1 Kf2 Rh4 Kg2 Re3 Kf2 g3+ Kg2 Rhf4 Kh3 g2 Kg3 Rfe4+ Kh3 Bf4 Kg4 Bd6+ Kh5 Nd2 Kg5 Rh3 Rg7 Nf3+ Kg6 Bc6 Kf7 Rg4 Ke8 Bb7 Rg6 Bd5 Be3 g1R Kd8 R1g3 Bg1 Rg2
q1q4R/1N1Q4/rb4bK/r3RP2/Bnb1Nqnk/1Rbp4/bB3RR1/n4r2 w - - 0 1 illegal: No possible last move
r2brrr1/6K1/pNb1PNb1/knNN3R/N1q1r3/6Q1/BB3Rnq/q1n5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 Kd3 d5 c4 Kd7 e4 Kc7 g4 Kb6 b4 h5 e5 f3 b5 f2 c5+ Ka5 c6 a6 b6 h3 g5 h2 b7 h4 c7 a3 g6 a2 g7 f4 Bh3 f1Q+ Qe2 f3 Na3 f2 Bg5 Nf6 g8N Nc6 b8N Ne4 Nb1 Nd2 Nf3 Na7 Nf6 Nb3 Ne1 Qd6 Ng2 Bf5+ Ne4 Bg6 c8N Be7 e6 Nc1+ Kc2 d3+ Kc3 d2 Kd4 d1N Nd7 Bd8 Be7 Re8 Nec5 Ne3 Nf4 Ng2 Bf5 h3 Qg4 Qe2 Bh4 f1R Ncb6 Qc2 Rg1 h1R Nf6 h2 Nc3 Qc7 Rb1 a1Q Rb2 Qh7 Ke5 d4 Bd3 Nb5 N3a4 Qc4 Bb1 d3 Ba2 d2 Qg3 d1R N4d5 Rd4 Bg5 Rf3 Rf2 Qh3 Be3 Rg4+ Bd4 Rff4 Nfe4 Rff8 Bb2 Rh4 Re1 Rhh8 Re3 Re1 Nef6 h1B Ree2 Qh2 Re4 Rd1 Rh4 Rd4 Rh5 Nh4 Nc7 Bc6 Ncd5 Ng2 Rh3 Bf7 Rh5 Re4+ Kf5 Bg6+ Kg5 Bh7 Kh6 Bg6+ Kg7 Rhg8+
bq2QR2/1kN2b1N/r1R1NBn1/b1K5/qq1pq1q1/5r1B/3P1qN1/nN2r3 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 h5 a4 d5 g4 Kd7 e4 Kc6 g5 f5 a5 b5 e5 d4 e6 c2 a6 b4 a7 h3 e7 h4 e8N h2 g6 f3 g7 h3 Ra4 f4 Na3 b3 Bb5+ Kb7 Nb1 c5 Nc7 b2 Ra6 c4 Na3 b1Q Ra4 c3 Qe2 Nd7 Qe3 Bb4 Ne2 Nc5 Rd1 h1B Rf1 h2 Ne6 Ne7 g8N Rh3 Nc7 Ba5 Rc4 Qb4 Qe6 Nb3 Qd6 Be6 Nf6 Ng6 Rg1 Qb8 Qf8 Bf7 Qe8 Na1 Bd7 Rg3 Bb2 c1R Rf1 c2 Nh7 Re1 Rc6 c1Q Ne6 Qc2 Nb1 Qca4 Ba3 Bg2 Nc1 h1Q Ne2 Qb6 Be7 Qbb4 Bg5 Qh3 Bf6 Qg4 Kg1 f2+ Kh2 f3 N2f4 Bh1 Ng2 Qa2 Nc7 Qe4 Bh3 Qaa4 Ne6 Re3 Re1 f1Q Rec1 Qfd3 Rf1 Qg4 Kg1 Re1 Kf2 Qe5 Bg5 Qde4 Bf6 Rc8 a8N Qb8 Rc5 Rc6 Nac7 Ra6 Rc6 Re3 Rfc1 Re2+ Kf1 f2 R1c5 Ree3 Rf5 Ref3 Rf4 Qec2 Ke2 Qe4+ Ne3 Rg1 Rf5 Qd5 Kd3 Re1 Rf4 Qda2 Ke4 Q2c2+ Kd5 f1Q Ng2 Qf2 Rf5 Qbb3+ Kd6 Qce4 Kc5 Qb2 Rd5 Qbb3 Rd8 Qb2 Qe7 Qbb3 Rf8 Qb2 Qe8 Qb6+ Kd6 Qbb4+ Nc5+ Ka7 Nf4 Rd3 Rb6 Bf3 Ng2 Qef5 Qe3 Bb7 Rc6 Ba8 Qe7 Qfe4 Qe8 Qc3 Ne6 Kb7 Qd8 Rf3 Qe8 Qb2 Kc5 Qbb4#
2N1NRrn/2R1Kb2/2qP3b/2N3pn/3bb1N1/1Qb3q1/1r1bqB1n/k3NB2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 Kd4 a5 b5 d3 g5 a6 f5 e5 c5 a7 f3 Kg3 b3 h5 f4+ Kf2 b2 e6 c3 e7 c4 e8N g3+ Ke1 c2 Kd2 g2 h6 f2 h7 f3 Qe2 b4 Nf6 b3 Ra6 Qe8 Na3 b1Q Ra4 b2 Rb4 Ne7 Nh5 Rg8 h8N Nd7 Rb6 Nf6 Nf7 Bh6 Qd1 Ng6 Ng3 Nh5 Nh3 g1B Rc6 Nh8 Ne4 Be6 Rc7 Qc6 Nfd6 Bf7 Ne8 Rb8 a8N Qa1 Nc5 b1B Rh2 Rb2 Nb6 Qa2 Nc8 Qb3 Be2 f1Q Nf2 Qg2 Ng4 f2 Bf1 c3+ Ke2 Qa2 Rh4 Qg3 Be3+ Kd5 d4 c1B+ Nc2 Kc4 d5 Bd2 Ne1 c2 d6 Kc3 Rh1 c1B Rh2 Be4 Rh3 Qh2 Rf3 Qg3 Rf6 Rb6 Rf4 Kb2 Qb3+ Ka1 Bd4+ Bb2 Rf6 Be6 Rf8 Bf7 Be3 Bbc3 Bd4 Bf3+ Kd3 Rb7 Qa4 Rb2 Qb3 Ba5 Be3 Be4+ Kd4 Bab4 Bc4 f1N Bf2 Nh2 Bf1 Nf4 Ke5 Bbc3+ Bd4 Qaa6 Kf6 Nh5+ Ke7 Qe2 Bf2 Qgf3 Bh4 Bgd4 Bf2 Qg3
kr3bq1/2P1nn2/2q1N3/B2nBn1K/R4Rr1/2q1pbBB/Q3n3/N3nr1B w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 Kd7 f4 Kc7 c4 b5 h5 Kb7 f5 g5 c5 b3 h6 b4 a5 e3 f6 e4 h7 b2 f7 d3+ Ke1 g3 Nh3 d4 Ng1 b3 Rh6 g4 Nd2 b1N Bh3 b2 Ngf3 e2 Nb3 g2 Kf2 g1R Rg6 e1N Qc2 d2 Rg5 d1Q Qe2 d3 Ra3 d2 Rg6 g3+ Ke3 g2 Kf4 Ne7 Kg5 Qc2 Ra1 d1N Ra4 Nd7 Kg4 Rf1 Rf6 g1N Rf4 Ne3+ Kh5 Rg8 h8B Ne5 Na1 N3f5 Nd4 e3 Bd2 Rg4 Ne6 Rb8 a6+ Ka8 c6 Bb7 a7 Qc3 c7 Bf3 Qf2 Qc6 Ba5 Nc3 Bf6 b1Q Qa2 Nge2 Bh4 Bh6 f8B Ncd5 Bg7 Qd3 Bg3 Nf7 Bd4 Qdc3 Be5 Kb7 a8B+ Ka7 Bb7 Qg8 Ba6 Ka8 Bd3 Nc1 Bc2 Bf8 Be4 Be2 Beg2 Bf3 Bh1 Ne2
N2B1qNK/P2Nr3/2N3qn/R1r3Rq/1nkqb1qp/6bq/3b1NBr/1Q6 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 a5 b5 g5 h5 f5 e3+ Kd3 e4+ Ke2 d3+ Ke1 h3 c3 d2+ Ke2 b3 a6 h2 a7 b2 f6 b4 g6 b3 g7 Na6 f7 Bb4 f8N Nh6 g8N Bb7 Nf6+ Kc4 Ne6 d5 Qe1 d4 Bg2 Rc8 Ng8 Qf8 Nd8 Rc5 Nc6 Ba8 Nf3 d1Q+ Kf1 d3 Rg1 h1Q Ra5 e2+ Kf2 d2 Kg3 e3 Qf1 Nf5+ Kf4 Qh3 Kg5 Nh6+ Kg6 Rh7 Qe1 h4 Qf1 Re7 Qe1 Nf7 Kh7 Nh6+ Kh8 Qg4 Qg3 e1B Qb8 e2 Qb6 Bg3 Qb7 Kd3 c4 e1Q Nc3 b1Q Ne4 b2 Nf2+ Kc3 Nfe5 Qe3 Qb6 Qbg6 Nd7 b1R Bb2+ Kb3 Bf6 Rb2 Bg5 Qa1 Qb8 d1Q Qb5 Re4 Bd8 Re7 Qb7 Qd5 Qb6 Qdh5 Qb8 Rce5 c5 Qa3 Qb5 Qed4 Qf1 Ra2 Qb1+ Kc3 Ncb8 Kc4 c6 Be1 c7 Rc5+ Ne5+ Kc3 c8N Bf4 Bh1 Bh2 Nd3 Qgd7 Rg4 Nb4 Rg5 Q7g4 Nb6 Be4 N8d7 Rg2 Nf2 Bd2 Na8 Bhf4 Nf6 Rh2 Nc6 Kc4 Bg2 Qac3 Ra6 Qch3 Ra5 Qde3 Nd7 Bg3 Ndb8 Qd3 Nd7 Qd4+
N1q2bn1/2n3Bb/1P1K2bb/3RpnbN/r3q2B/4R1n1/2nBr3/B3QBk1 w - - 0 1 illegal: No proof kernel
nB1q2b1/1Bq2k1K/5b2/1rBPp3/1qR1N3/3rnnR1/1nBBb3/Qb2b1N1 w - - 0 1 illegal: No possible last move
1r2bN1B/Qb2bR1R/2k2P2/p1bqr3/2B3n1/Br2qB2/3q2K1/Nn2rBb1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 e5 c4 d5 b4 Kd7 f4 h5 Kf2 a5 g5 h3 b5 e3+ Kf3 h2 f5 e2 b6 e1R b7 a3 g6 h4 f6 h3 c5 a2 g7 e4+ Kg3 d3 Qg4+ Kc6 Bg5 d4 Bg2 d2 Nc3 d1B Na4 d3 Rc1 a1B Nc3 d2 Nge2 Qe7 Qf3 Nd7 b8B Rh5 Be5 Rb8 Nf4 Bb7 Rc2 Nb6 Nce2 Bd4 Bh6 Nd5 Qe3 Nc3 Bf1 Nb1 Bd6 Re5 Nc1 Bh5 Ne6 d1Q Nb3 Qd2 Na1 Be8 Qf2 e3 Rc3 Kd5 c6 e2 c7 Bc5 c8B Kc6 Rc4 Qc1 Rh4 Qd2 Rg1 h1R Qe3 h2 Kg2 Bd4 Ba3 Qc5 Rh3 Be7 Nf8 Qb6 Be6 Bdc5 Bg4 Qb3 Bf3+ Qbd5 Bg5 Nh6 g8B Ng4 Rh7 Qe4 Bh6 Qed5 Kg3 Qe4 Rg2 Rg1 Qd4 h1Q Bg7 Qhh6 Bb3 Qd5 Bc4 Qhe3 Bh8 Rh1 Rg1 Rh3+ Kg2 Rc1 Rh1 e1B+ Bfe2 Bf2 Rf7 Re1 Bf1 Bcd6 Qa7 Bc5 Rh2 Bg1+ Kh1 Rg3 Rhh7 Qee4 B3g2 Rb3 Bf3 Bcf2 Kg2 Bfc5+ Kg3 Qed3 Kh3 Q2e3 Kg2 Qdd2+
q1K5/k1brRbrB/r1qPRr2/3QN1R1/bN3BnR/1p5b/3n1b2/4Rn2 w - - 0 1 illegal: No possible last move, all moves rejected
B1Brn2R/r2bK3/2P3B1/1q1r4/2NrR1Q1/1qb1Brbb/1N1pn3/q1k1B3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 h6 Ke3 e5 d4 h7 b3 e6 d3 e7 b2 e8B b4 Rh3 b3 Rh6 f3+ Kh1 f2 Kg2 f4 Rg6 f3+ Kh1 g2+ Kh2 Bd7 Kg3 Qg5 Raa6 Bg7 Rgf6 Nc6 Nh3 g1R+ Bg2 f1B Rh6 f2 Bh5 Bc3 Nf4 Nd4 c6 Qb5 Kh4 g3 Ra1 Ne2 Ne6 Nf6 Bd5 g2 Kg5 Ne8 Na3 b1Q Bf7 b2 Bg6 Qa2 Rh2 b1Q Nc5 Qab3 Na4 Rh1 Rh6 g1B Nb2 Bh2 Ra2 Rf8 h8B Bfh3 Bg7 f1R Rh8 Bhe5 Be6 Qa1 Bg4 Rd8 a8B R1f4 B4f5 Rd4 Nac4+ Kf2 Bf6 Bg3 Ra4 Kf3 Qg1 d1R Be3 d2 Be5 Rf7 B5f4 Rf1 Bf2 Re7 B4e3 Re5 Be1 Red5 Kh6 Rh2 Kh7 Rg2 Kg8 Rgf2 Kf8 Rh2 Be6 Rg2 Bgf7 Ke4 Ke7 Rf3 Nd1 Kd3 Ndb2+ Kc2 Bg6+ Kc1 Rb4 Rgf2 Qg2 Rf8 Qe4 R2f3 Qg4 Rb8 Ra4 Rb7 Rb4 Ra7 Bef5 Nc7 Be6 Rd8 Bef5 Be8 Bc8 Bd7 Na3 Rd3 Re4 R3d4 Nac4 Ne8
NknrbR2/1B2b2B/P2b4/Q3R1nq/1p1r1q2/1q4B1/1rbr4/1BBN1bK1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc7 c4 g5 a4 b5 h5 f5 a5 b3 e5 b4 h6 g3+ Kg2 g4 e6 d3 h7 d2 a6 b2 c5 d4 e7 d3 e8B Be7 c6 Nd7 Qe1 d1Q Nf3 d2 Na3 b1B Ne5 f3+ Kg1 f2+ Kg2 f4 Rh5 f3+ Kh1 g2+ Kh2 g1R Rh6 g3+ Kh3 g2 Kh2 Ndf6 Nec4 Qd3 Rh5 Kb8 Nc2 Qb3 Qe3 Ne4 Qc5 Bd7 Re5 Ng5 Bg6 Be8 Be2 f1Q N2e3 f2 Nb6 Bc2 Qa5 Ra7 Be4 Rd7 Na8 Rd4 B2d3 Qg4 Bf5 d1R Ra2 Rd2 Nd1 Bd6 Bg6 Ne7 c7+ Ka7 c8B Kb8 Bb7 Nc8 Bge4 Rg8 h8B Qh5+ Kg3 Rh1 Bh7 g1B Bf6 Rh2 Ra3 Qd5 Bde4 Qe6 Rf3 Qb3 Be7 Qfc4 Bd3 f1B Rf8 Rf4 Bf6 Bgc5 Bd8 Be7 Bb6 Bcd6 Bf2 Rd4 Be1 Rhe2 Bf2 Qf3+ Kh2 Qh5+ Kg1 Qcf7 Bg3 Qf4 Rf7 Bd7 Bde4 Rd8 Rf8 Be8 Bg2 Bcg6 Bge4 Rb2 Bd3 Red2 Bb1 Bc2
1R2r3/3n4/p1BrB1nN/1bB1q1b1/1n1N2nq/1b1KPB2/b6k/rQR1Bn2 w - - 0 1 illegal: No possible last move
5k1q/2NPpB1b/1Rr1R1qb/nb4Rn/4qbK1/BRr2R2/qN5Q/3b3r w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 b5 a4 c5 g4 h5 f4 h3 d4 h4 f5 e3 Kf3 e2 a5 e1Q f6 c3 g5 b3 a6 c2 d5 b4 d6 h2 a7 h3 g6 c4 g7 b2 Bg2 c3 Bf1 b3 Ra6 Nc6 Bf4 c1B Bg3 c2 Ra3 Na5 Qd2 Ba6 Bc4 Qb6 Nc3 b1Q Nge2 b2 Nb5 Qa2 Kg4 b1B Rb3 Rc8 Nf4 Qe4 Re1 h1Q a8R h2 Rb8 Rh7 Rb7 Rc6 Bf2 Rh3 Bc5 Rc3 Ba3 Qbg1+ Qg2 Bd2 Re3 c1R Rb6 Bc2 Re1 Bd1+ Re2 Qee3 Nd3 Qe4+ Kh5 Bg5 Nb2 Bf4 Kg4 Rb1 Bd3 Kf7 Nc7 Bb5 d7 Ra1 Qg3 Qgg2 Kh4 Qg6 Re6 Q2e4 Qf2 Qd4 Qd2 Qhe4 Bc4 h1B Qh2 Bhf3 Kh3 Bc2 Bd5 Rh1 Bc4 Bfd1+ Kh4 Nh6 g8R Ng4 Bd5 B8h6 Bc4 Qh7 Rg5 Kf8 f7 Qhg6 Bd5 Nf6 Bc4 Kg7 f8R Nh5 Rf7+ Kg8 Rff5 Qh8 Rff6 Be3+ Kh3 Bb1 Rf3 Bf4 Kg4 Kf7 Re5+ Kg7 Bf7 Kf8 Re6 Qc2 Ra6 Qgg7 Bc5 Qe2 Bb4 Bh7 Ba3 Qe4 Rb6 Qgg6
N1B1bB2/Pq1r4/2b2pb1/1n1B1rN1/1Rr4k/3q4/BRBnbbKn/1n4Q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 g4 Kg5 a4 h5 e4 d5 c5 b5 e5 d3 e6 f6 c6 d4 e7 b3 e8B h3 c7 h4 a5 d2 a6 f3 a7 b2 Qe2 d3 Rh2 b4 Bh5 b3 Qe8 Bd7 c8B Nc6 Qf7 Nh6 Ra3 Nd4 Bb7 Bc5 Be4 Rc8 Bh7 Be8 Ne2 Nb5+ Nd4 Qd7 Rg2 h2 Rg3 h1B Ra2 h3 Qg8+ Kh4 g5 d1R g6 h2 g7 d2 Nc3 b1B Ne4 b2 Bc4 Bd3 Bf5 b1N Bhg4 Bg2 Bg6 h1Q Ba3 Rh7 Rb2 Rf1+ Ke3 d1B Ba2 Bb6 Bf8 f2 B6f5 Rc5 Ne6 B1e2 Nc7 Rc4+ Kf4 Qh3 Na8 Qb7 Rf3 Bc2 Rfb3 Qc3 Bh3 Ng4 Rb4 Nh2 Bg6 Bc5 Bc8 Bcd3 Qf7 Qd4 g8B Rg7 Qd5 Rd7 B6h7 Qc3 Qd4 Bgf3 Ng5 Bc6 Bd5 Qc2 Bf5 Qc3 Bh3 Bdg6 Bf5 Bb6 Bc2 Qd3 Bg7 Rc1 Bf8 f1N Bf7 Nfd2 Bd5 Be4 Qg1 B4g6+ Be4 Bd4 Bd5 Rf1+ Nf3+ Kh5 Kg3 Be3 Ng5 Rf5 Kh3 Bf2+ Kg2 Kh4
1n1bR1n1/Kp3RB1/1n2rBn1/3B1bb1/nn2qQn1/1B2P1Br/3b1N2/N4k2 w - - 0 1 illegal: No proof kernel
b1bq3n/B3B1r1/1Nr4R/3rkqN1/Pp5r/1KbBb3/B1n2Bq1/Qn1R4 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 d5 c4 g5 Kc2 b5 f4 e3 f5+ Ke5 h5 g3 c5 e2 h6 e1B h7 d3+ Kb2 g4 c6 g2 c7 b3 f6 d4 f7 g3 Ka3 d2 Qf3 d1B Ne2 g1R Bh6 d3 Ra2 b2 Qc6 g2 Ra1 d2 Ka2 b4 Qg6 Ra6 Ng3 Bf3 Ne2 d1R Be3 Ba8 Qh6 Nc6 Ba7 Rd5 Rh4 Bc3 Nd2 b1N Ne4 Nd4 Ng5 Rc6 Nf4 Nc2 Bd3 e6 Qg6 Bc5 f8B Nh6 Kb3 Nf7 Be7 Be3 Rh5 Rf8 Qg8 Nh8 Rh6 Rf7 Qg6 Rg7 Qh5 Re1 Qd1 g1Q Qc1 Rd1 Qb2 Rd4 Nd5 Qg2 Nb6 Rd5 Qa2 Rh1 Qb2 Rh4 Qa2 Nba3 Rd1 Nb1 Qb2 Kd4 Qa1 e5 Nf7 e4 Ng5 Bf5 c8B Ke5 Bca6 Bc8 Bab5 Bf2 Bbc4 e3 Rf1 e2 Rd1 Rdd4 Bd5 e1Q B5c4 Be3 Bf7 Ng6 h8B Qef1 Bd5 Qf5 Bg8 Kf4 Bf7 Rd5 Be6 Rg8 Bd4 Nh8 Bf7 Rg7 Be6 Bc1 Bf2 Be3 Ka2 Ra5 Bb3 Rd5 Bbc4 Bcd2 Kb2 Ke5 Ba2 Be1 Kb3+ Bc3
rr3bR1/2qb2b1/Kb2B1b1/nQ4nn/3p2Nk/1bP1NRN1/4nN1B/N2r4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kb5 d5 a4 f5 e4 d3 e5 b3 e6 g3 h3 g2 a5 d2 e7 b2 e8N f3 a6 f2 a7 f4 c3 f3 Qb3 Nh6 Nf6 Nc6 Ra2 Nf7 Nh7+ Kh4 Na3 d1R Bh6 b1B Qb2 g5 Nc2 g4 Bg7 g3 Ne2 g1B Ng5 g2 Be5 Na5 Bh2 Qc7 Na1 Bc2 Ng3 Bb3 N5e4 Ng5 Bc4 f1N Nf2 b6 Qb1 Bd7+ Ka6 b5 Rb2 Rb8 a8N b4 Nb6 Bg7 Rd2 Rhc8 Rd3 Rf8 Nfe4 Bc5 Rg1 f2 Rf3 Rfc8 Qb2 Bcf8 Qb1 Ne3 Qb2 f1N Nf2 Ng4 Qb1 Nf6 Qd3 d4 Be6 Nh5 Qb5 Re8 Nc4 Red8 Nge4 Nfg3 Ne3 Ne2 Ng3 Bc5 Rf1 g1B Rf8 Ba7 Rg8 Rd2 Nfd1 Ra8 Rf3 Rdb8 Nf2 Rd1 Nd3 Bf8 Qe5 Nf7 Qb5 Nf6 Nd5 Be3 Bg4 Bc1 Be6 Bch6 Ne3 Bhg7 Nd5 Kg5 h4+ Kg6 h5+ Kg5 h6 Kh4 h7 Nh5 h8N Ng5 Nf2 Ba2 Nfe4 b3 Nf2 b2 Ne3 b1B Nf7 Bg6 Nh6 Bb3 Nhg4 Bb6#
b3nr2/1b3qQb/3n2BN/1Kn1Nn1q/3Rpb2/k1BP2Nr/1N1n2N1/1n3R2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d3 e3 Ke2 Kd7 a4 Kd6 g4 Kc5 f4 e5 g5 b5 a5 h5 f5 c3 g6 h3 f6 b3 a6 Kb4 f7 c5 g7 c4 a7 h2 Ra6 b2 Rc6 c2 Bd2+ c3 Ra6 c1N+ Kf3 e2 Ke3 e1N Bh3 h4 Nf3 Nb3 Ke2 Qc7 Rg1 h1B Rc6 Ng2 Re1 Na6 Bg4 h3 Bh6 c2 Bd7 c1Q Rc3 h2 Rf1 Nd4+ Kf2 Nh4 Be8 Qg5 Ne1 Be4 Qg4 h1B Nd2 Nf6 g8N Nc5 Bg7 Bd6 Rc4+ Ka3 f8N b4 Nd7 Nb5 Ke2 Qg6 Ke3 b3 Qg5 Rb8 a8N Ba6 Bf7 Rf8 Nab6 Ne8 Na4 Ba8 Qh6 Bhe4 Ng2 B6b7 Qh7 Bf5 Ne4 Qg4 Ng3 e4 Qg6 Rh5 Qf6 Bh7 Bg6 Nf5+ Kd2 Rh3 Nh6 Qh5 Qe5 Na7 Kc3 Nc8 Qe7 Bf4 Bd4 Qg5 Ne5 Qh5 Qg7 Qf7 Rb4 Ne6 Kc4 Nc5+ Kb5 Ncd6+ Ka5 b1N Rc4 Nd2 Bc3 Nf3 Rd4 b2 Be1 b1N Bc3 Qd5 Nb2 Nfd2 Kb6 Qf7 Ka5 N6c4+ Kb5 Ncd6+
1rknK3/2bn4/1r1n1PBN/1q1r2n1/Q1nBb1qB/pBn3R1/5rN1/1B1R4 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 e5 g4 h5 b4 a5 f4 d5 c4 Kd7 b5 d3+ Ke3 d4+ Kf2 a3 b6 e3+ Kf3 h3 Ke4 h2 Kd5 d2 g5 a4 b7 a2 c5 h4 g6 d3 g7 a3 f5 h3 f6 e2 Bb2 e1R Qf3 d1R Nc3 e4 Qe2 d2 Nb1 e3 Ke5 Qb6 Bd4 Bd6+ Kf5 Bc7 Kg6 Qb5 Kf7 Ne7 g8B Ra6 Nf3 Rb6 Rg1 h1Q Nc3 h2 Rb1 a1N Na4 Nc2 Nb2 Qg2 Qf2 h1N Nc4 e2 Ng5 Ng3 Ne3 Nec6 Qf4 Nd8+ Kf8 Qe4 Ng2 Ne3 Nf7 Ngf5 Nh6 Nc4 Rb3 Qe6 Rg3 Nfd6 Qh4 Qg4 Rh1 Na6 b8B Bb7 c6+ Kc8 Ke7 Nc5 Bh7 Qf5 Bg6 Nd7 Qe4 Qh5 Qc2 Qg4 Qa4 Ra1 Ba7 Red1 Rg1 e1N Bfd3 Rac1 Bb1 Nf3 Rf1 Ng5 Rh1 Bb8 c7 Rc2 Rg1 Be4 Rf1 Kb7 c8B+ Kc7 Bb7 Ra2 Bd5 Kc8 Bg8 Bc7 Bf2 Rc1 Bd4 d1N Re1 Nc3 Rd1 Rcc2 Bb8 Rd2 Be6 Nb2 Bb3 Nbc4 Ba7 Rc6 Bf2 Rd5 Bad4 Re2 Rgd3 Rb6 Bh4 Rg8 Rg3 Rf2 Bd3 Nde6 Qa6+ Kb8 Qa4 Kb7 Bb1 Rb8 Qa7+ Kc8 Qa4 Ndf7 Ke8 Ned8 Re1 Qc6 Rc1 Qb5 Rd1 Nfd6+
2Bbb1R1/1R4NP/Qr1p1BB1/2Br3n/r5rb/3B2k1/1q1rb3/N3Krnq w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 Kf7 h4 Kg6 c4 Kh5 a4 b5 f5 g5 a5 e5 f6 d6 a6 b3 a7 e3 c5 b4 c6 d3 c7 d2+ Ke2 b2 f7 g3 Ra5 Kg4 h5 b3 h6 g2 Nf3 g1Q Ra6 e4 Nc3 b1R Ra5 b2 Qa4 d1B+ Ke1 e2 Be3 Nd7 Rh2 Qh1 Kd2 e1R Nb5 Be7 f8B Be2 Qd1 Ne5 Ra3 Kg3 Ra2 g4 Nc3 Nf6 Ra6 Nh5 Nd5 Bd7 c8B Qb6 Nf6 Bd8 Nd4 Be8 Nc2 Rh7 Bc5 e3+ Kc3 Rb7 h7 Nf3 Na1 Ng1 Qd3 Red1 Bg7 Rd2 Ra3 Rbd1 Qa6 b1R Rb3 Rd5 Rf2 R1d2 Rg2+ Kf4 Rb2 g3 Bh8 Rg7 Rb5 Qb8 Rb7 Rg4 Bg7 Rb6 Bh8 Bc4 Bd3 e2 Bg7 e1B Bg6 Bc6 Ne8 Be2 Bf6 Bf2 Ng7 Be8 Rh2 g2 Rh3 Bh4 Rg3 Ra2 Bd3 Ra4 Kd2 Ra2+ Ke1 Rd2 Rf7 Rc6 Rd7 Qb2 Rb7 Rb6 Bg6 Rb8 a8B Rb4 Re7 Ra4 Bc6 Rb7 Bb5 Rb6 Bbd3 Nf3+ Kf2 g1R Rd7 Rc1 Rb7 Ng1 Bb4 Rc7 Ke1 Rf7 Bc5 Bg5 Rg2 Bh4+ Rf2+ Kg3 Rf5 Rbb4 Rg5 Rb6 Bfd4 Bb5 Bge4 Qb3 Ne8 Nf6 Rg8 Qb2 Bg6 Nh5 Ng7 Be8 Be5+ Rff4 Bf6 Rf1#
KB4br/3qb1n1/rB3N2/qqN2qr1/3b4/4p1P1/B1r1Q3/bRBRn1kB w - - 0 1 illegal: No possible last move
1k1B1bN1/1q2N2K/R5rb/4r2B/1R1n2n1/r2p1Bn1/nQ1B2rP/1Bq1bb2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 b5 f4 e5 a4 d5 c4 Kd7 c5 Kc7 a5 g5 a6 d3 Ke3 d4+ Kf2 b3 Kg3 d2 a7 d3 c6 b4 f5 b2 f6 e3 f7 b3 Nc3 b1Q Na2 b2 Qc2 d1R Bd2 e2 Nc3 e1B+ Kg2 g3 Kf3 g2 Ke4 g4 Ra3 g3 Na4 Qd5+ Ke3 e4 Kf4 e3 Be2 Qc1 Bh5 b1N Nc5 e2 Nh3 g1R Ra6 g2 Nd7 Nc3 Nf6 Na2 Qb2 Nh6 Ng8 Qb3 Kg5 Ng4 Kg6 Qb7 Nf4 Rh6+ Kg5 Bf2 Ng6 e1B N6e7 Re6 Kf5 Re5+ Kg6 Be3 Kh7 Bf4 Bc3 B4h6 Bd2 Rf1 Rg1 Rf6 Rf1 g1N Rf4 Ne2 Rb4 Bfg7 f8B Ng3 Nf5 Rg6 Be7 Bd7 Bd8+ Kc8 c7 Bf8 B2g5 Nc6 Bd2 Rb8 a8B Nd4 Ra5 Bc6 Ra6 Bg2 Nfe7+ Kd7 Ra7 Bf1 c8B+ Kd6 Bf5 Rc8 Be6 Rc3 Raa4 Ra3 Bb3 Kd7 Bc2 Kd6 Bb1 Kd7 Bc3 Rd2 Ra6 Rf2 Bd2 Rg2 Nd5 Kc8+ Nde7+ Kb8 Bg5 Qb6 Bd2 Qb5 Bf3 Qb7
3RN1qq/2n2bQ1/3n4/qk3q1r/3rNNbp/5BB1/nNP1Nnb1/2R2Kb1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 d5 g4 Kd7 a4 Kc6 g5 h5 g6 f5 e5 b5 e6 b3 g7 d3 e7 f3 e8N f2+ Kd2 d4 a5 b2 a6 f4 a7 h3 Ne2 f3 Qe1 h4 Ra5 h2 Nec3 b4 Ne2 b3 Nf4 Nf6 g8N Na6 Rg1 h1B Nh6 Bg4 Nf5 Ne4+ Kd1 d2 Bh3 f1B Nc3 b1N Nfd5 b2 Rg3 f2+ Ne2 Rh5 Rg1 Nc7 Rg3 Nd6 Ra4 Kb5 Ndf6 Bfg2 Nh6 f1Q Nf5 Bd5 Ra1 Bf7 Ne3 Qf5 Ne4 Bh6 Nc4 Be3 Bf1 Bg1 Bg2 Qdf6 Rh3 Qh8 Rd3 Rd8 a8N Qg8 Bf3 Rd7 Nf4 Rd8 Ke2 d1Q+ Kf1 Qd2 Qf2 Qa5 Nab6 Nc3 Ne2 b1Q Qg2 Qb2 Bf4 Na2 Rc1 Rd7 Rdd1 d3 Bg3 d2 Nd5 Qbh8 Nb2 Rd8 Ndf4 Rd7 Qf2 Rd8 Qa7 Rd7 Re1 d1N Qd4 Nf2 Red1 Nc8 Qg7 Rd4 Rd3 Nd6 Rc3 Na8 Rc8 Nc7 Rd8 Bg2+
8/bP3q2/1n2nqqp/1nRQB2k/2N1BB2/3B1Rb1/b1Bbq1K1/1nNr3r w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 b4 Kf7 g4 Kg6 c4 e5 f4 d5 Kf2 a5 b5 h3 g5 a3 b6 a2 b7 h2 c5 d3 c6 e3+ Kg2 d2 c7 d4 Qg4 d1Q Na3 e2 Nh3 e1B Nb1 a4 Qg3 e4 Qb3 a3 Qb2 e3 Qe2 d3 Nf2 d2 Ne4 Qd6 Qa6 e2 Qa5 Ne7 Qa4 Be6 c8B Nd5 Rg1 Nd7 Rh1 Nc3 Qc6 Bg3 Nf2 e1B Nd3 Nb5 Qc4 h6 f5+ Kh5 g6 Bg8 g7 Qg6 f6 Bc5 Rg1 h1N f7 Nf2 f8B Ne4 Qf7 Ng5 Qb3 Qg4 Nb4 d1N Nd2 Ndc3 Bd6 Ra6 Qf7 Ba7 Nd3 Nb6 Bf5 Qc4 Rb1 a1Q Be4 a2 Rb3 Qb2 Qd7 Bf7 g8B a1Q Ra3 Qaa2 Bb8 Qcc6 Be5 Qcf6 Qd4 Bb3 Bc4 Rd8 Qc5 Bc2 Bb3 Bb1 Ba4 Qaf7 Qd4 Rc8 Qd5 Ne6 Rb3 Rc4 Ra3 Rd4 Bb3 Nd6 Ra5 Qa2 Rc5 Ndb5 Ba4 Qc4 Bc2 Ra1 Be2+ Qg4 Rf1 Ba2 Rf3 Qgg6 Nb3 Rb1 Bcf4 Rc1 Bf1 Nb1 Nb2 Bc3 Be2 Rh1 Nc1 Rdd1 Bf1 Qd3 Nc4 Bd2 Be2 Qe3 Be2d3 Qe2+
K2b3k/2q4b/b2B1rBq/B2RNn1R/3NQnBP/p1rp1B2/2b1b2r/3q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 Kf7 Kd5 Kg7 e4 a5 c4 d3 b4 d2 c5 g3 e5 a3 h3 a2 c6 a4 b5 f3 e6 g4 b6 f2 b7 a3 e7 f4 e8B g2 c7 f3 Bh5 g3 Bg6 Be7 Bgd3 Ra6 Bh7 Rf6 Bb5 f1B Qe2 d1B Qd2 f2 Ne2 g1Q Qd3 g2 Bd2 Nc6 b8B Nd4 Nc1 Bc2 Qe2 Qh2 Be4 g1R Bf3 Rg3 Qe1 Nh6 Ba5 Ne2 Nc3 Ba6 c8B Qc7 Bd3 Nf5 Nb5 Bd8 Nd4 d6 Rb1 a1Q Rb5 Rh5 Bde4 Kh8 Nd3 Qd1 Ne5 Bg2 Be6 f1B Bc8 Qg1 Qb4 Qe3 Rc5 Qh6 Qc4 Qch7 Kc6 d5+ Bd6 Nf4 Qe2 Qf7 Bd3 Qfg7 Qe4 Be2 Bd7 Bb3 Bb1 Bc2 Rh2 Bgf1 Rh1 Bad3 Kb7 Qe7 Ka8 Ba6 Bc6 Qc7 Bg4 Rc3 Rh2 Bed3 Rd2 Bfe2 h4 Rg5 Bf3 Rg2 Bd7 Ne7 Bdg4 Rh2 Qe3 Bh7 Rb5 Bb3 Bg6 Ba4 Qe4 Bc2 Ne6 d4 Rd5 Bf1 Re2 d3 Nd4 Nf5 Rf2 Ba4 Rb2 Bc2 Rbb5 Be2 Nd7 Rc6 Rdc5 Ng3 Rh5 Nf5 Ne5 Rc4 Rd5 Rc3
Qq4n1/2qB2B1/b1N1NBq1/b2RPb1B/3bB3/2pr2b1/1kp1KR1r/2n4n w - - 0 1 illegal: No proof kernel
3k2n1/Rb1r2b1/4BRK1/Pr1Rr2b/Q3Nq2/Bn6/1qp1bp1R/1nR1N1b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 f5 d4 c5 g4 b5 a4 c3 e4 c4 g5 b3 g6 h3 e5 c2 a5 b4 g7 c3 d5 h4 d6 b2 e6 h2 e7 b3 Qe1 h3 Na3 b1Q Qe5 b2 Ne2 Rh5 Bg2 Na6 Ng1 Rb8 Bf1 Rb5 Bd2 c1B Be1 c2 Bf2 Nc5 Bc4 Bb7+ Qe4 Qc7 Be6 Be3 Nc4 Nb3 Nd2 Qa2 Re1 b1N Rc1 Qb2 Bh4 Ba7 Bf2 Bb6 Bc5 Ba7 Ba3 Rh7 Ke2 f3+ Kd3 f4 Qa4 f2 Ngf3 f1R Ne1 f3 Ne4 Bg1 Bc5 Rh5 Ba3 Rf2 Ke3 Rd2+ Kf4 Re5 Kg4 Bb6 Rf1 h1B Rf2 Qb8 Rh2 Bg1 Kf4 f2 Kg4 Rd1 Kf4 Nf6 g8R Bf3 Rg7 Bh5 Rg6 Ng8 Rf6 Bg6 Kg4 Bg7 Kf4 Bf5 Kg5 Bg4+ Kg6 Be2 Bd5 Kd7 e8R Rd4 Ree6 Kd8 d7 Rd3 Ra6 Qd6 Rg2 h2 Ra7 h1B Rh2 Bhf3 Be6 Qdd4 Nd6 Qf4 Ne4 Kc7 d8R Rd7 Rf5 Bg4 Rdf8 Bgf3 R8f6 Kd8 Rfh5 Rec5 Rd5 Bg4 Rd3 Re5 Rd5 Bh5+
1b2n1q1/2k2N1N/2bRB2r/p7/PRr3B1/KbBB2n1/2Q1b1pr/nb3q1B w - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 d4 e5 Qd3 exd4 Qh3 g5 Qg2 gxf4 g5 Bh6 Qg3 Bf8 Qg4 hxg4 Kd2 f5 h4 a5 a4 d5 c4 Kd7 Kc2 b5 Kb3 f3 e4 f4 e5 g3 e6+ Kc7 c5 d3 e7 f2 e8B d4 c6 f3 h5 d2 g6 d1B+ Kb2 b3 h6 b4 h7 d3 g7 d2 Bg2 f1Q Nc3 f2 Nce2 Bb7 Nc3 Na6 Ra3 Nf6 g8B Rc8 Nh3 Nc5 Ng5 Be2 Rh6 d1B Be6 Bd6 Bg6 Qg8 Bh1 g2 Nce4 Ne8 Bd2 Bg3 Nd6 Bh2 Ka1 b2+ Ka2 b1R Bd3 Nb3 Bc3 Na1 Rb3 Bg3 Rb2 b3+ Ka3 Rc1 Rb1 b2 Ndf7 Bb3 Bg4 Ra8 Rd6 Ra6 Be6 Kb6 c7+ Bc6 c8B Kc7 Bd4 Rc4 Bc3 Qe1 Bg4 f1N Bce6 Be5 Rd1 b1B Rd4 Rc5 Rb4 Ng3 Rd2 Rc4 Rd1 Qg7 Rd2 Qf1 Rd1 Rf8 h8Q Qg8 Nh7 Ng7 Bd7 Ba8 Bb2 Ne8 Nhg5 Qg7 Bg6 Baf3 Qh6 Rh8 Qh7 Qg8 Bc3 Bd5 Bc8 Kc6 Be4 Bf4 Qf5 Rh5 Nh7 Bb8 Qg6+ Kc7 Bcd7 Rf6 Bde6 Bc6 Rd6 Rh2 Qf5 Bed3 Qf2 Rfh6 Qc2 Be2 Bg6 R2h3 Bd3 Rh2
N3r1B1/1RNqrn2/3BbQp1/1Rr3Np/4nr2/1q2N3/Pb1k1NK1/1b2q1r1 w - - 0 1 illegal: No proof kernel
Q2N3q/2R2N2/Kp1B4/1P1BRB2/bprBqq2/r2q4/kqbb4/4rBnn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 b5 cxd4 Qd2 e5 Qc3 exf4 Qb4 axb4 Kd2 Ke7 Kd3 Kd6 Kc4 g5 e4 f5 h4 g3 a4 g2 a5 g4 a6 b6 h5 g3 a7 d3 c3 d2 h6 d1B h7 f3 Bb2 f2 Nh3 g1R Ra6 f4 Nd2 g2 Ba3 f3 Be2 f1Q Rh2 f2 Bc1 Nf6 Bd3 Ng4 Nb3 Qe1 Nd4 f1Q Nc6 Qf4 Ra1 Ba4 Ng5 Bh6 Bf1 Nf2 Rh5 Nh1 Nf7+ Ke6 Kd4 d5 c4 Nd7 c5 Ne5 Bb2 Rg8 h8B Rg4 Rc1 Qg8 Bf6 Qh8 Be7 Bb7 Bd6 Nf3+ Kd3 d4 Kc4 d3 Bd4 d2 e5 d1Q Ncd8+ Kd7 Rc3 Be4 Rg5 Bd3+ Kd5 Bdc2 Rh5 Qd3 c6+ Ke8 c7 Kd7 Rf5 Qec1 Rg5 Qb2 Rh5 Qff5 Rc6 Bd2 Rg5 Qf4 e6+ Ke8 e7 Kd7 Re5 Rh4 Be2 Re1 Bf1 g1Q Rc4 Qgg6 c8B+ Ke8 Kc6 Qge4+ Kc7 Ng1 Bb7 Rg4 Bd5 Rh4 Kb7 Kd7 Ka6 Rg4 Bb8 Rh4 Ng5 Rg4 Rc7+ Kd6 e8B Rh4 Bg6 Rg4 Bc3 Rh4 Bf5 Rg4 Rce7+ Kc5 Ngf7 Rh4 Bb7+ Kc4 Rc7+ Kb3 Bd4 Ka2 Bd5+ Qbb3 Rc4 Qb2 Bd6 Rc8 a8Q Rh3 Bb7 Rg3 Rc7 Rh3 Rce7 Rc4 Rc7 Qde2 Bc6 Ra3 Bd5 Q2d3
4R3/2rbnbb1/pqR1n1BB/5b1Q/K2B3N/1pn1b2N/1B1P1rB1/q3k2q w - - 0 1 illegal: No proof kernel
1R3R2/kbp1n3/B2q2n1/r1b1rnRb/q1NRNP2/1n5Q/2Rp1n1B/2r4K w - - 0 1 illegal: No proof kernel
R1Bn3K/p1N1k1bb/q1rRn3/B1nq1r2/r2N4/1p2q3/1P2N2q/N1Q1q1N1 w - - 0 1 legal: proof: f4 e5 d4 exf4 a4 g5 h4 gxh4 a5 c5 a6 cxd4 Qd3 Qa5+ Qd2 Qxa6 Qd1 Qa2 Kd2 f5 Kd3 h5 e4 b5 c4 d5 g4 b4 c5 f3 c6 f4 e5 h3 c7 f2 e6 h4 e7 f3 g5 h2 g6 b3 g7 h3 Qc2 Bf5+ Kd2 d3 Ke3 d4+ Kf4 d2 Ke5 d1Q c8N d3 Ne2 d2 Qc7 Nf6 g8N Qa6 Ng3 Nh7 Na3 Ng5 Ne2 Ne6 Kf6 Rh4 Ng1 Bh7 Bc4 f1Q Nc2 f2 Nb6 Qfe1 Na4 Nc6 Nh6 f1R+ Nf5 Rc8 Nc3 Qf3 Nce2 d1N Bd2 Qe3 Ba5 Nc3 Rd1 Na4 Na1 Nac5 Rd6 Ncd8 Bd5 Ra4 Bb7 Bg8 Kg6 Bg7 Nfd4 Rf5 Qc6+ Nd7 Qc2 Rc6 Qc1 Ndc5 Bc8 Nf7 Ngf3 Nfd8 Rf1 h1Q Nfg1 h2 Rf4 Bf7+ Kh7 Qd5 Re4 h1Q+ Rh4 Bh6 Kh8 Bg6 Rf4 Kf7 e8N Ke7 Nc7 Bh7 Rg4 Qhh4 Rg8 Qh2 Bd7 Ndb7 Ra8 Nbd8 Bc8 Bg7#
b2b1N1R/2nRRq2/1B4Rr/q2P1Q1B/1K4nb/p3qN1n/1R3pkn/1r3r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 b4 Ke7 e4 Ke6 g4 Ke5 g5 c5 g6 f5 g7 a5 b5 h5 d3 h3 Kd2 h2 Kc3 f3 b6 f2 b7 h4 Qf3 a3 Bb2 h3 Qd1 Kf4 d4 Kg3 e5 a2 e6 a4 d5 f4 e7 f3 e8R a3 Qd3 Nf6 g8R+ Ng4 Qg6 Qa5+ Kc2 c3 Kb3 c2 Rg7 c1B Qh7 c4+ Kc2 c3 Kb3 c2 Qh5 Bg5 Qg6 c1Q Bg2 f1N Qh6 Na6 b8R Bd8 Nc3 Qe3 Rb4 Bfe7 Rb6 Bb7 Qg6 Bh4 Ree7 Nc7 Qf5 Rb8 Rbg6 Rh6 Rb1 a1R Rd7 Kf2 Rge7 Ba8+ Kc4 Rb7 Nce2 Rb3 Bd4 Rb6 Rc1 Rbb1 Nf4 Kg3 Bb6 Kf2 Rc2+ Kg3 Nge2+ Kf2 Rg1 h1N Ne6 h2 N2d4+ Kg3 Re2 Nf2 Rb2 h1Q Nf8 Nh2 Bh3+ Qg2 Rh1 Qg1 Bf1 Nh3 Be2 f2 Nf3 Kg2 Bd1 Qe6 Be2 Qf7 Kb3 Qc1 Bd1 Qa7 Kb4 Qe3 Ng5 Nf6 Bh5 Nfg4 Nf3 Qa6 Rc1 Qa7 Rcc6 Rf1 Rg8 Rac1 Rh8 Rb1 Rg6 Qa5+
b3r1K1/1N1qQ2B/2nb1B1P/1n1q3r/2pR1Bp1/1n1bB2k/1r2q2B/2N1R2q w - - 0 1 illegal: No possible last move
1n3qrN/q1r1b3/P1BbR1p1/1n1R4/2B2Q2/2n1Bb1b/3Kq1Bp/1kN1r1B1 w - - 0 1 illegal: No proof kernel
qNR1r1b1/K1B2Rp1/4r3/N1Qb2n1/qN2N3/1p2n1Pq/2b2Nnb/B2r2k1 w - - 0 1 legal: proof: e4 c5 b4 f5 d4 cxd4 b5 fxe4 g3 h5 b6 h4 Bf4 h3 Bg2 hxg2 Be3 axb6 Bd2 b5 Bc1 b4 Ke2 Kf7 a4 Ke6 c4 Ke5 h4 b5 a5 d5 c5 e3 Kd3 e2 c6 e1R f3 b3 a6 b4 c7 b2 h5 Nd7 h6 Ndf6 a7 Nh7 Bg5 Qd7 Rh3 Ngf6 Na3 b1B+ Nc2 Ba2 Qb1 Qc6 Rh1 Be6 c8N Rd1+ Bd2 Ng5 h7 Ng4 Qc1 Bg8 Nd6 Ne3 Nb7 Re8 Nh3 g1Q a8N Qg2 Nf2 Qh3 Nb6 e6 Re1 Bc5 f4+ Kf5 Nd7 e5 Qa3 Re6 Nb8 Bb6 Na5 e4+ Ke2 Bc5 Bc3 Bb6 Rc1 Bc4+ Nd3 Kg4 f5 b3 f6 Ng2 f7 e3 Kf1 Kf3 f8B e2+ Kg1 Ba7 Nf2 d3 Qc5 d2 Nb4 d4 Bd6 d3 Rf1 e1Q Bc7 Qee4 Ba1 Qa4 Rc2 Qec6 Rc3 Bd5 Rc2 Bf7 Rc3 Rd8 h8N Bg8 Nf7 Rde8 Nd6 Rde1 Na2 d1B Nb4 Bc2 Nde4 Rd1 Nh1+ Ke2 Qb6 d2 Bf4 Qcb5 Rc8 Rc1 Bc7 d1N Rf7 Qc6 Qd4 Rf6 Qb6 Kf3 Kf1 Rb1 Qb5 Bg1 Qc5 Bh2 Nhf2 Nf4+ Ke1 Kg2 Kd2 Ne3 Kc3 Rf1 Kd4 Rd6 Qc3 Kg1 Qc4 Nfg2 Qc3 Qa8 Kc5 Rde6 Qd4 Rd1 Qe5 Bc6 Kb6 Bb7+ Qd6 Bc6 Qc5 Bd5+ Nd6 Q8c6+ Ka7 Qh5 Nde4 Qh4 Rf5 Qh3 Rf7 Qa8#
RBR4K/b1q1nqp1/2rN3q/1BNQ1Pr1/2bp2Bn/n5B1/1r6/kB2bq2 w - - 0 1 illegal: No proof kernel
2N1q1Rn/K1p1RP1N/2r3qR/3B3b/1Q1B3R/3rb1R1/np2bn2/rkqb4 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 g4 Kc5 a4 h5 f4 e5 d3 b5 a5 b3 g5 Kb4 g6 b2 a6 h3 f5 h2 a7 h4 g7 c3 f6 c2 f7 Kb3 d4 h3 d5 b4 d6 Ne7 g8R Bh6+ Rg5 Qe8 d7 Nbc6 d8R Ba6 Qe2 Ng6 Nc3 b1B Ba3 c1Q+ Rd2 Rd8 a8R Bc2 Qf3 Bd1 Rc8 Rd3+ Kf2 e3+ Kg3 e4 Nb5 e2 Nd6 e1R Bg2 e3 Bb2 e2 Ra4 Qc2 Rg4 Be3 Qe4 Rh6 Kf3 Nh8 Bd4 Qb1 Qe7 Rf1+ Ke4 e1Q Kd5 Qg3 Kc5 Qc1+ Rc2 Rg6 Rc3+ Kb2 Rh4 b3 Bd5 Kb1 Nf3 b2 Ng5 Nb4 Nh7 Na2 Rb8 Rh6 Nc8 Qg6 Re4 Bh5 Qh4 Bc4 Re7 Bb3 Ra6 Bbd1 Rc6 Re1 Kb5 Rg1 Ka6 Re1 Rf1 h1N Rf4 h2 Ka7 Nf2 Rg4 h1B Rb4 Qe4 Rg8 Bh1f3 Rcg6 Bde2 Rcc6 Bd1 Rg3 Bfe2 Rcb6 Rc6 Rc4 Rc5 Rh6 Rc6 Qf4 Qe6 Qd6 Qg6 Qb4 Qd2 Bb6 Rf1 Rh4 Qc1 Bd4 Qc2 Rgh3 Kc1 Kb8 Qc5 Ka8 Ba4 Bg2 Kc2 Bh1 Ra1 Rg3 Kb1 Bd5 Qc1 Ka7 Bad1
B1R2bkb/1P4n1/1rRq2b1/1Rp1B3/N3N1R1/3r1Q2/nK2pqrR/1n1b1q2 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kf7 Kd2 c5 Kc3 h5 b4 a5 f4 e5 g4 a3 d5 h3 f5 e3 f6 h2 g5 h4 b5 h3 b6 a2 d6 e2 d7 e1Q+ Kb2 a4 Nd2 a3+ Kc3 e4 Qe2 e3 Qg4 Rh6 Qg2 Na6 Rb1 a1N Ne2 a2 Ba3 Nc2 Qb7 a1B+ Rb2 Nab4 Qf3 Ne7 g6+ Kg8 g7 Qf2 Nd4 Nf5 Rg1 h1Q Ne4 h2 Bh3 e2 Rg4 Qhf1 Rh4 h1B Bg2 Rb8 Nb5 Rg6 Rh2 Na2+ Kd2 Bb7 Nbc3 Bc6 Na4 c3+ Kd3 Bd5 Rb5 Bb3 Bb2 Qc7 d8R Na3 Rd5 c2 Be5 c1R Rd6 Bd1 Rc6 Bd4 Kd2 Qd6 Kd3 Rc3+ Kd2 Kf7 g8R Rg3 Rg4 Ng7 Rhh4 Kg8 Rh2 Rc4 Kd3 Rb4 Kd2 Nb1+ Kd3 Rb2 Kc4 Rc2+ Kb3 Rc3+ Kb2 Rb7 Bh3 Rg2 f7+ Kh8 Bf4 Bf6 Bg3 Rd3+ Be5 B8e7 f8R+ Kh7 Ra8 Bf8 Rac8 Kg8 Rh4 Ne8 Bd7 Bh8 Rg4+ Ng7 R6c7 Ra7 Bc6 Ra5 Ba8 Ra6 b7 Rc6 Qe3 Rb6 Rc6 Rg1 Nec3 Be4 Qf3 Bg6 Ne4 Rg2
Nr5Q/4K3/4N1r1/rkB1BRpr/1n1rrP1b/3p2B1/1BqRb2b/1B1n1n2 w - - 0 1 illegal: No proof kernel
r2K2k1/PQr2br1/8/1Rq2rB1/3BB1r1/2nn1bB1/1bppnRNr/2N3B1 w - - 0 1 illegal: No possible last move
1Rb2n2/q1Rp2r1/Nrpk1n2/2nBr1r1/Qr3PnN/1R1K4/1b6/1nR2RB1 w - - 0 1 illegal: No proof kernel
n1Nn1k2/K5rb/2rb4/N1rB4/r1Q1b1R1/bP2Rb2/1B1n2pp/RR1R2q1 w - - 0 1 illegal: No proof kernel
Br3N2/1r4kb/4B1nR/1n2n1b1/2r1N3/PpRr2BB/BnK1pQr1/5q1b w - - 0 1 illegal: No possible last move, all moves rejected
2BBQ1n1/B2n1r1k/2b1n2n/bP4p1/q3K2p/n2NR1Bn/1Rq3r1/1Nq2B2 w - - 0 1 illegal: No possible last move
2N4k/r2Bp2r/b1rnB3/R2n4/QbPN2n1/B2Rpbb1/K1B1q2B/2n1n3 w - - 0 1 illegal: No proof kernel
1k4b1/n1pR2b1/b3qBn1/bq4r1/KRp1q1NN/5B2/B1rbBP1Q/2b1B3 w - - 0 1 illegal: No proof kernel
R3nKQ1/bb3RR1/P5rR/BN2q3/n3pqB1/R3p1r1/1Nk1r3/1qqr3r w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 g4 d5 a4 e5 f4 h5 c5 b5 c6 e3 Kf3 h3 g5 Kf5 c7 h4 a5 b3 a6 h2 g6 h3 g7 b4 Qe2 b2 Kg3 Ke4 f5 d3 Kg4 b3 Qd2 d4 Be2 Bc5 Qc3 d2 Na3 d1Q Qb4 b1R Bd2 b2 Nc2 Qc1 Qb3 d3 Bf1 Nf6+ Kg5 Qe7 Kg6 Ba7 g8R Nbd7 Ne2 Nb6 Ne1 Na4 Bb4 d2 Nd4 d1R Nd3 Ne8 f6 Bb7 Rg7 Rg8 c8R Re1 f7 Re2 f8R Qg5+ Kf7 Qf4+ Nf5 Qc3 Ra3 Rd1 Qe6 b1Q Ba5 Rb8 Rc7 Rc8 Re7 Rc6 Nb2 Qd4 Qa2 Rg6 Rc7 Qc3 Ke7 Qbc1 Nd4 Rg3 Rgf7 R8g6 Nb5 Qb1 Rg8 Qcc1 Kf8 Qa1 Rg1 h1Q Rc6 h2 Bh3 Qab1 Rg2 Qhf1 Re6 h1R Bg4 Qf6 Rd6 Q1f4 Rh8 Qe6 Rd8 Qd5 Ra8 Qd4 Rh6 Qdc3 Nc4 Kd3 Nb2+ Kc2 Qd5 e4 Qg5 Rgd6 Qg8 Qce5 Be6 Rgh3 Rg7 Rg3 Bg4 Rg6
b5rq/kr1p4/Nb4rp/1QrB1qR1/3N1Bqq/1n1n1R2/2PRR3/3q1R1K w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 g4 f5 Kg2 b3 a4 h3+ Kh2 f3 e4 f2 e5 d3 e6 b4 a5 d2 a6 f4 g5 h6 e7 f3 g6 b2 a7 b3 g7 Nf6 g8R Ng4+ Kg3 h2 Bc4 f1Q Ba6 f2 Be2 Qg2+ Kh4 f1Q Qe1 d1Q Rg7 Nc6 Ra6 Nge5 Nd2 b1R Bb5 b2 Be2 Qf5 Bc4 Nd4 Rg5 Rg8 Qf1 Rg6 Ne4 Nb3 Nc5 Bb7 Bd5 Nd3 Bf4 Ra1 Ra3 b1R Nf3 Ra2 Ra6 Ra5 Rd6 Rb5 Na6 Rc5 Rg1 Bc6 Nd4 h1Q+ Bh2 Qge4+ Kg3 Rc8 Qe2 Ba8 Rf1 Qee6 Qe5 Qhe4 Rf3 Qh4+ Kg2 Qg8 Qe2 Qh8 Rf1 Qhg4+ Kh1 Bg7 Bf4 Be5 Re6 Bc7 Re3 Bb6 Rf3 R8c6 Rf2 Rg8 Qe5 Rcg6 Rd2 Ra1 Qb8 Raa5 Qb7 Rc7 Qc6 Rc5 Qb5 Rb7 Bg2 Kf7 e8R Qdf6 Rf8+ Ke7 Rf7+ Kd8 Bd5 Kc8 Re7 Qhg7 Ree2 Qh8 Re3 Na5 Nb4 Nb3 Rf3 Qa1 Rh5 Qfh4+ Bh2 Rbc7 Rg5 Bc6 a8R+ Kb7 Re8 Ka7 Na6 Ba8 Re7 Rb7 Ree2 Qhe1 Bg3 Qad1 Bf4 Qeh4+
3n1q2/2rb1r2/1kB3K1/qN5b/1bn2pRq/N1PN1NB1/r1rQ3p/1b2RN2 w - - 0 1 illegal: No possible last move
2R1n1b1/2qbB1nQ/B1NR2r1/3BKB2/1qqp2pB/kbPq4/rr1b3N/8 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 h4 b5 a5 f5 e5 g5 e6 d5 e7 d3 e8B b3 h5 Kb4 h6 g3+ Kf3 d2 h7 b2 a6 g2 a7 d4 Rh6 Nd7 Re6 Ngf6 Qe1 Nh5 Raa6 Ndf6 Be2 Qc7 Re4 Bh6 Qd1 Ng7 Bg6 Bd7 Bc4 Nfe8 Qe2 d1B Na3 b1Q Nh3 g1R Rd6 g4+ Kf2 f3 Bg5 f4 Bf5 Rg8 h8B Ka4 c3 b4 Be7 b3 Nc2 b2 Nb4 Ka3 Bd3 Bb3 Ba6 Qd3 Nc6 b1Q Ng5 Rh1 Qf1 Rh2+ Qg2 Rb8 a8B Qc4 Re1 Qb4 Re5 Qd3 Rc5 Rb5 Nd8 Ra5 Bd5 Qdc4 Nc6 Rb5 Ke1 f2+ Kd2 f1B Nf3 Be2 Qf1 Rg2 Nh2 f3+ Bg5 f2 Qb1 f1Q Qc2 Ne6 Bf6 Rg6 Be7 N6g7 Qe4 Ba2 Kc2 Rb6 Bh4 Bd2 Qf4 Rb8 Qh6 Rf2 Qh7 Qh3 Bg2 Bf3 Bh1 Bd5 Bf3 Bg8 Bd5 Qcb5 Rc4 Qe3 Rc5 Qe6 Rc4 Bb3+ Kd3 Qf7 Ke4 Rb7 Rc5 Qd3+ Ke5 Rb5 Bf3 Qfc4 B3e4 Rf1 Bh1 Ra1 Bd5 Ra2 Na5 Qa7 Rc8 Qac7 Nc6 Ba4 Bg3 Qbc5 Bg5 Rbb2 B3h4 Q5b4 Be7 Bb3
B4nbr/n2K1NRB/1B3Q2/1NPn4/R1qbp1Br/5n1q/b2B2p1/kb2r3 w - - 0 1 illegal: No proof kernel
3q2bR/3nB1b1/nQKB4/Bp2BRNn/2kp4/1r1qnq1r/NP2B3/2r4r w - - 0 1 illegal: No proof kernel
2kr2q1/3r3N/P4BBp/1Kp1N3/nRnNq2b/1b3rr1/Q1N2Rqn/2Nq4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 c5 Ke2 f5 d4 b5 g4 h6 a5 h3 e5 h2 a6 b3 d5 b4 d6 c3 Kd3 b2 Kc4 b3 g5 f3 g6 f4 g7 f2 Ra3 c2 Ra5 f3 Na3 b1R Bb2 c1Q+ Bc3 b2 Nc2 Be7 Nd4 Bh4 Qa4+ Nc6 Qa2 Nf6 g8N Nd5 Ra4 Qd1 Nge2 Nb6+ Kb5 Rh7 Ne7 Na5 Ng6 Qg8 Rb4 Nac4 Nc1 Na4 Bd3 f1R Nc2 f2 e6+ Kd8 Ne5 Rd7 Rg1 h1Q Bg6 Qg2 Rh1 Rg1 Rh2 f1N Bd4 Bb7 e7+ Kc8 e8N Bd5 Nf6 Ra1 Nh7 b1Q Ne1 Qbe4 Nc2 Rb1 Bc3 Rb3 Bb2 Qg5 Rf2 Rf3 Bd4 Rgg3 Bc3 Rg7 Ba1 Nh2 d7+ Kc7 d8N Kc8 Ndc6 Rd7 N6d4 Qgd2 Rf1 Qg2 Rf2 Rd8 Bc3 Ra7 Bd2 Rad7 Bg5 Ncb2 Be7 Bb3 Bf6 Nc4
5KNq/b2N4/p2n1B2/1kn1qR1r/4r2B/PN1prRNr/1b1b2b1/3q1QN1 w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Rb1 f3 Bg2 fxg2 Ra1 hxg6 Nb1 g5 Qb3 g4 Qc2 Nf6 Qd1 Ng8 Kd2 c5 f4 g5 h4 d5 b4 Kd7 e4 Kc6 h5 a6 e5 g3 a3 c3+ Kd3 c2 f5 c4+ Ke2 g4 h6 d3+ Ke3 c3 Kf4 d4 h7 d2 f6 d3 Kg5 Ne7 e6 Nd7 f7 Nf5+ Kg6 Kb5 e7 Bg7 f8N Nc5 Kf7 Bb7 Qe2 d1Q Bg5 c1R e8N c2 Bh4 Bb2 Nf6 Nd6+ Kg7 Qc7+ Nd7 Rae8 Rh3 Re3 Nd2 Rhe8 h8N R8e4 Ng6 Qb8 Nf4 Qh8+ Kg6 Rb1 N4h5 c1B Nb3 Bd2 Qf1 Qe2 Ng8 Rc1 Nf3 g1Q Ra2 g2 Ng3 Qh2 Ng1 Qd1 Bf6 Rc2 Rh5 Rcc4 Rf5 Rcd4 Rf3 Rd5 Ra1 Rh5 Rf5 Ne8 Kf7 Nd6+ Kf8 Bc6 N3e2 Qe5 Ng3 Qe2 Re1 Qd1 Re2 Bb7 Ref2 Ba8 R2f3 Bb7 Nh3 g1R Bh4 Rg2 Ng1 Rh2 Bf6 R2h3 Bh4 Kc4 b5 Bc6 b6 Kb5 b7 Bd5 Nh1 g3 b8B g2 Ng3 Bc6 N1e2 g1B Bc7 Bf2 Ng1 Re2 Bcd8 R4e3 R3f4 Bg2 Rf3 Re4 Bde7 Bfd4 Bef6 R2e3 Bd8 Ncb7 Bdg5 Ba7 Bf6 Nc5
2b1kq2/b1q1p3/4Rn2/1K3NnN/1NqPB3/r1B2Q1n/n1Nrq1p1/2Nb2R1 w - - 0 1 illegal: No possible last move, all moves rejected
N2r1krR/2PQ1n2/1qpr1N2/qBB5/B2p2bn/1qqRbr1B/1b5B/6K1 w - - 0 1 illegal: No proof kernel
K2k1rrn/2p1q2p/n2P1B2/nBq3Q1/b2q3b/n1N5/2N1B1b1/BR1BRb2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 e5 Ke3 b5 f4 b3 a4 c3 d4 c2 g4 h3 f5 b4 g5 b2 g6 b3 a5 h2 d5 Na6 f6 Ne7 g7 Ng6 g8B Bd7 Ne2 Ba4 Qd3 Be7 Na3 b1B Qd2 b2 f7+ Kd7 f8B Bh4 Rg1 h1B Nc3 Bg2 Bg7 Ke8 Be6 Rf8 Bf6 Nh8 Be2 Qe7 d6 Kd8 Qd5 Bf1 Bd2 c1N Nc2 Nb3 B6g4 Ba2 Bd7 b1N Bdb5 Na3 Re1 Rb8 Bc1 Bb1 Bb2 Bg2 Nb4 Bd3 Ba1 Bc4 Bd1 Bcf1 Qd2 Nbc5 Nc2 Nb7 Qd5 Ra8 Qg8 Rc8 Qg5 Rb8 Bbe2 Ra8 Kd2 e3+ Kd3 e4+ Kd4 Rc8 Bb5 e2 Kd5 Ra8 Kc6 e3+ Ne4 Nac5 a6 Na5+ Kd5 Rc8 a7 Na6 a8B Rg8 Kd4 Rb8 Nc3 Rc8 Bf3 Ra8 Kd5 Rb8 Nd4 Rc8 Bc2 Rf8 Rb1 e1Q Bd1 e2 Nc2 Qf2 Rh1 e1Q Rg1 N5c4 Kc6 Qee3 Kb7 Qc5 Rh1 Qfd4 Rg1 Be2 Re1 Bef1 Be2 Nb8 Bd1 Na5+ Ka8 Rg8 Bfc6 Rf8 Bbe2 Na6+ Rb8 Rg8 Be4 Kd7 Bd5 Nc6 Bdc4 Rcf8 Bcd3 Nd8+ Rb7 Ke8 Bc4 Nc6 Rb1 Kd8 Bb5 Na5+
1nR1b1Rn/6q1/k6P/p2bb1Q1/K2RR1br/b2p1B2/1NrB1b2/nNn3R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 b4 d5 h4 Kd7 c4 Kc6 Kc2 Kb6 e4 f5 b5 a5 h5 d3+ Kc3 g3 e5 g4 e6 d2 e7 a3 Kb3 f3 e8R a2 Qe1 d1N Bh6 f2 Qb4 g2 Rh3 f4 Rf3 g3 Qa4 d4 Bg5 Ba3 Rc3 f3 Re2 Bg4 Bh6 Ne7 Bd2 Qc7 Ree3 Nb2 Ne2 g1B Rc2 g2 Qb4 Nd3 Nc1 Bh2 Be2 f1B Ka4 g1B Re4 f2 Bf3 Ng6 Qe7 Be5 Qg5 Qg7 c5+ Kb7 b6 Ka6 b7 Bg2 c6 f1B c7 Bf2 c8R Bh1 Ne2 Nc1 R2c4 d3 Red4 Bfg2 Nec3 Rh7 Re4 Nh8 Rcd4 Rh6 Rg8 Rc6 Nd1 Rc2 Nb2 B2h3 Nc3 Ra7 Rb1 a1N h6 Bh5 Qf5 B3g4 Qg5 Be8+ Rd7 Nc6 b8R Rb7 Rdd4 Rf7 Rbd8 Rf4 Rc8 Nb8+ Rd7 Ncb3 Rg1 Nc1 Nb1 Be6 Bh5 Rh4 Be2 Bf3 Bd1 Bfg4 Bf3 B8f7 Rdd4 Bd5 Rcd8 Bg6 Rc8 Be8+
nr2Q3/rn2N1PK/2B5/1rr2R2/q2p3k/2b2RbB/nnB1b2p/BbB4N w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Kf6 c4 d5 g4 b5 f4 h5 f5 e5 c5 h3 a5 h2 c6 d3+ Ke3 Kg5 a6 b3 c7 b4 a7 d4+ Kf2+ d2 Kg3 h4+ Kh3 b2 f6 e3 f7 e2 Na3 e1N Nb5 b1R Ra6 e4 Ra3 e3 Bc4 b3 Be2 b2 Ra2 Bd6 f8B Nf6 Bf1 e2 Qa4 Nd3 Nc3 e1B Qe8 Nd5 Nge2 N5b4 Ra3 Bdg3 Nd5 N8a6 Ne7 Ndc5 Rf3 Qd7 Rg1 Rb8 a8B Rh7 Bc6 Na2 Bg2 Rh5 Rgf1 Nb7 Ba4 Qc6 Bc2 Qa4 R1f2 Be6 c8B Bc4 Bd7 Nc7 Bc6 Na8 Rf1 Bc7 Ng3 Be2 Nh1 Ra1 R1f2 b1B Bb2 d1N Bg7 Bf4 Bh6+ Kf6 Bc3 Nb2 Rf1 Rc5 g5+ Ke5 Kg4 h3 Kh5 Bfg3 Kg6 Ke6 Bb4 Bc3 Kh7 Rb5 g6 Rc5 Bf4 Kf6 g7 Rb5 Be5+ Kg5 Bf4+ Kh4 Bc1 Rc5 Rf5 Rb5 R1f3 Rc5 Nf2 h1R Ba3 h2 Bh3 Rd1 Nh1 Rd3 Bb4 Re3 Ba5 Ree5 Bb4 Rb5 Ba3 Rec5 Bb4 Bce1 Bc3 Nb4 Bb3 Nc4 Bh6 Qa6 Bb2 Bc3 Bc2 Ra4 B6e4 Na2 Ba1 Nb2 Bc6 Qa5 Bd2 Qb4 Bf4 Ra7 Bc1 Qa4
3R4/p2bnp1k/1Rq3Rr/2R2b1n/3bNK1n/R3r1P1/bBrr1N2/2n1QB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 h5 Kf3 d5 e4 h3 b4 a3 c4 a2 e5 h2 b5 h4 b6 h3 c5 d3 c6 d2 c7 d4 b7 d3 g3 Ne7 e6 Qd5+ Kg4 f3 Na3 f2 Bb2 Bg7 Nb5 O-O Bc3 Bd4 Qc2 d1B+ Qe2 d2 Qf3 Re8 Ba5 Ba4 Qe4 d1R Kf3 Nd7 b8R Nf6 Kf4 Rd2 Qe1 Kh7 Qe2 Nh5+ Kg4 Qc6 Bc3 Bb3 Rb6 Bd7 Ra6 Rac8 Qe1 Bd5 Rb1 a1N Bb2 Ba2 Nd6 Nb3 Ra3 Nc1 Kg5 Nf5 e7 Nh4 Ne4 Bf5 Bd3 f1N Ba6 Ne3 Bf1 Rcd8 c8R Rc2 Rc7 Nd5 Rc8 Rd6 Rd8 Rh6 Rd6 Rd8 e8R Ne7 Rg6 Rd6 Rd8 Re6 Nf2 Re3 Nf3 Rd2 Rg1 h1R Rg2 Rc2 Nd2 Rh2 Rg1 Rg2 Nde4 h2 Rh1 Nd3 Rg1 h1B Rc1 Rd2 Rcc3 Nc1 Rc5 Nf6 Kf4 Rc2 Ng4 Rgd2 Ngf2 Bf3 Rg2 B3g4 Rh2 Nf3 Rh5 Nh4 Rb5 Bd7 Rhc5 Bgf5 Rb6 Nh5+
qnr2rb1/1bpn4/3BrBp1/2N5/1BpP1nN1/4R1qk/K3B1q1/2bQR1B1 w - - 0 1 illegal: No proof kernel
1K4N1/np1P2Qq/Rn3nrB/r1N1Nqb1/6N1/1rpN3B/kp1bb3/3Rq3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Kd5 a4 h5 d4 c5 g4 c3 e3 h3 a5 h4 a6 b3 g5 h2 g6 b2 a7 c4 g7 h3 Bd3 c2 Ra6 Qe7 Qd2 Nf6 g8N Rh6 Qc3 Nc6 Nd2 Qh7 Ne4 Rg6 Bf1 Bb4 Bd2 c1B Ne2 Be6 Rg1 h1R Nc5 h2 Bh3 Bd7 Rf1 Rhg1 Rd1 h1Q+ Bg2 Q1h4 Bh3 Qe1 e4+ Kd6 e5+ Kd5 e6 Rh1 Bf1 Rh3+ Ng3 Ba5 e7 Bd8 Be3 Bd2 e8N Be7 Nd6 Be6 Nf7 Bd8 Nfh6 Bf7 Ng4 Be7 Kg2 f3+ Kg1 f4 Nd3 f2+ Kg2 Be6 Ne4 Bf5 Nec5 Bd8 Nh6 Rg3+ Kh2 f3 Bh3 f1Q Ng8 f2 Bh6 Be4 Rda1 Re3 Rd1 Bf3 Kg3 Be2+ Kf4 Be7 Qa5 Bd8 Qc7 Rg3+ Kf5 Re3 Qg7 Be7 Nde5 Rb3 Ned3 c3 Ne4 Kc4 Ke6 Nd5+ Kd7 Nb6+ Kc7 Bh4 d5 Bhg5 Nf4 Kb4 d6 Kc4 Nc5 Kb4 Na4 Ka3 d7 Ka2 Nd3 Rf8 a8N Rf5 N8f6 Ra5 Nac5 Na7 Ng8 Qg1 Rc1 f1N Kb8 Ng3 Rb1 Qgf2 Rd1 Na4 Nb6 Ne4 Nc4 Nf6 Nce5 Nb6 Nf4 Qf3 Nfd3 Qf5
2q2RN1/2N5/r2Np1kp/Bqn1q1r1/N3q1nq/2K3B1/p2NRb1P/3b1b1Q w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 f5 f6 Bc4 fxe5 f6 e4 Be6 Na6 Bg4 Nb8 Bf5 gxf5 Kd2 Kf7 b4 a5 g4 d5 c4 d3 g5 d4 c5 a3 c6 h6 b5 f4 c7 e6 b6 a2 b7 e3+ Ke1 f3 Ba3 f2+ Kf1 d2 Ke2 d3+ Kf1 a4 Bb4 a3 Bd6 Nd7 b8N Kg6 f7 Ngf6 Nf3 Ba6 c8N Rg8 Bg3 Ng4 Nd6 Nc5 Nc3 Qc8 Na4 Rg7 Rc1 a1Q Rc2 a2 Qb1 d1B Nd2 Bc4 Na6 Qe5 Nc7 Ra6 Qa1 Be7 f8B Bf6 Rb2 Qe4 Be7 Bd4 Bd8 Rg8 Nd5 Bb5 Ba5 Qe5 Nc7 e2+ Kg2 e1Q Rf1 Kh5 g6 Q1e4+ Nf3 d2 g7 Kg6 Rc2 Rf8 g8N Rf5 Qb1 Rg5 Rb2 Bb3 Rc2 d1Q Re2 Qe1 Qc1 Qb1 Nd2 Bd1 Kf3 Qb4 Rg1 Bd3 Rg2 f1Q+ Rf2 Qh3 Rf1 Qh4 Rf2 Nb7 Qa1 Bc4 Qc1 Qeb5 Ke4 Q4c5 Rf8 Bf2 Qa3 Qcb4 Qf3 Qc3 Qh1 Qf6 Re3 Bf1 Re2 Qc3 Bb6 Qcb2 Ba5 Q5e5+ Kd3 Qbb5+ N6c4 Qe4+ Kc3 Nc5 Nd6 Qf5 Re4 Qee2 Re5 Qef3+ Re3 Q3e4 Re2 Qfe5+
B4b1R/qb3RpK/R2r1r2/p3rR1n/3Bn1P1/1N5Q/1Rn2rqp/4kNr1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 a5 Qxh4+ Kd2 Qh2 a6 bxa6 Ke1 a5 Qd2 a4 Qd3 Bc5 Qd1 Bf8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 Kh4 Kf5 Kg3 e4 Kf2 c4 h5 b4 d5+ Kg5 f5 Kg6 a5 e5 d3 e6 d4 b5 f3 e7 f4 e8R a3 c5 d2 c6 d3 c7 h4 b6 a2 b7 h3 Na3 Rh6+ Kf7 Rd6 Nb1 Nd7 b8R Nc5 Qc2 Nf6 Kg6 Nh5+ Kh7 Ne4 Rb5 Qg2 Rh2 Bb7 c8R Ke1 Rf5 d1R Qc3+ d2 Ne2 f2 Re6 f3 Bb2 Rb8 Rc7 Re8 Rcf7 Re7 Rg6 Re5 Nd4 Rf6 Ba6 f1Q Nb3 f2 Qg3 Qfh1 Bd4 Qhg1 Bc4 Rc1 Bd5 d1R N1d2 Rcc6 Qh4 Rcd6 Rb1 a1N Rb2 Nc2 Qg3 Rc1 Qd3 f1R Rh6 Rf2 Nf1 Bc8 Ba8 Bb7 Qb5 Rd2 Nc5 Nhg3 Qb3 Rd8 Ne3 Rc6 Kh8 Ke2 Bc3 Rf1 Kg8 Ke1 Rh8 Q1f2 Kh7 Rg1 Nf1 Qe3 Qb6 Rce6 Nb3 Qc5 Qa6 Qa7 Bd4 Rf2 Qd3 Rg6 R5f6 Rd7 Rd6 Rgf6 Ra6 Rdd6 Qf3 Qh1 Qd3 Rd2 Rf2 h2 Rf4 Nh5 Rf5 Qg2 Qh3 Rf2
nN4br/k2p2p1/rRnN1pPn/1b5q/3q3R/1RR2nb1/BRnB4/1K2Q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 g5 cxd4 Qd3 e5 Qh3 exf4 Qg4 hxg4 Kd2 b5 c4 f6 Kc2 f3 h4 g3 e4 g2 a4 f2 a5 Na6 c5 Bd6 h5 Nc7 g6 Ne7 c6 Ba6 h6 Bg3 Nd2 b3+ Kb1 b2 e5 b4 e6 d3 h7 Bb5 Ra3 Ra6 Ngf3 g1N Rh2 Na8 c7 Nc6 Ne4 d2 c8R d1Q Nd4 Nf3 Bc4 f1N Ba2 Ne3 Rb3 Ng4 Nd6+ Ke7 Rb8 Nh6 Rb6 Qe8 Rf2 Kd8 e7+ Kc7 Rg2 Qf7 e8Q Qd5 Qe1 Qh5 Rc2 Qd2 Rcc3 Qf4 Bd2 Qfg4 Nb7 Kb8 Nd6+ Ka7 Re3 Rc8 h8R Qf4 Rec3 Qe3 Kc2 b1B+ Kc1 B1d3 Kb2 Bdc4 Kb1 Bg8 Rb2 b3 Rh7 Nf5 Rh8 Qh1 Rh4 Nh6 Rh3 Nb4 Nc4 Be6 Rcc2 Rh8 Nd6 Nc7 Nc6+ Ka8 Rh5 Bd5 Nb8 Bg8 Ka1 Ra7 a6 Nc6 Rc3 Qd4 Rbc2 Qh3 Kb2 Qf5 Rh4 Qh5 Kc1 b2+ Kd1 b1N Kc1 Nfe5 Rb2 Nf3 Kc2 Na3+ Kc1 Nc2 Kb1 Rb7 a7 Ba6 R6b3 Rb6 Nf7 Kb7 a8R Bb5 Ra6 Na8 Ra4 Ra6 Nd6+ Ka7 Rab4 Bf1 Rb6 Bb5
3n1N1B/Rp3nNb/4QB2/q3bbPb/1q1B1pb1/2rR1Bk1/K3p1r1/4nB2 w - - 0 1 illegal: No proof kernel
rkqr2NB/Np6/6K1/2bb2Pp/2p1B1q1/qNR3qn/4q2N/2QNRnn1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 c3 g4 h3 d4 c4 a4 c2 e4 b3 d5 f3 d6 h2 a5 f2 g5 b2 a6 Nf6 a7 Ng4 e5 Nc6 Nc3 b1Q Bd3 f1Q+ Nf3 Qe2 Be4 Qb3 Re1 h1Q Bb2 c1Q Nh2 Qhg2 Ra3 Nf2 Qd2 f6 Kg6 f5 Nd1 Qbg3 Rc3 f4 Qe3 Qa1 Qc1 Qa3 Ba1 Qc7 e6+ Kd8 d7 f3 Bb2 Nh3 Ba1 Qb8 e7+ Kc7 d8N Nd4 Nc6 f2 Na5 f1N Nb3 Be6 e8N+ Kc8 Bb2 Bd5 Nf6 Nf3 Ng8 Bc5 Ba1 Kc7 Bb2 Qf8 Ba1 Rd8 a8N+ Kb8 Nb6 Nfg1 Nc8 Qg2f3 Na7 Qfg4 Rd3 Rd6+ Bf6 Qfc8 Rc3 Ra6 Nb5 Ra8 Na7 Rh7 Bd4 Rd7 Bh8 Rd8
2qqQN1R/pb3bbb/1b1N4/p5R1/p2BP1B1/6nr/1Rqkn2r/5KRR w - - 0 1 illegal: No proof kernel
1nbq1R1B/5rn1/r1N5/NBNrR1pQ/q6b/1Pp1K2k/p2rqnN1/N7 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 d4 Ke6 h4 Kf5 h5 c5 h6 a5 d5 g3+ Kf3 c3 h7 c2 b3 g2 d6 a3 d7 c4 e3 c3 Rh4 a4 Bb5 a2 Rg4 a3 Ne2 g1R Nd2 Ne7 Ne4 Rg2 Nc5 Ra6 Rb1 Rg8 h8N a1Q Ng6 f6 Bd2 c1N Rh4 Nd3 e4+ Kg5 e5 f5 e6 Nf2 Be3 Rh8 Rb2 Rh5 Nd4 Qa2 Rh3 Rh2 Ke2 Kg4 Nh4 g6 Ng2 f3+ Ke1 f4 Nc2 Rf5 Rh5 Rd5 Bd4 Nf5 e7 Ng7 e8N Be7 Na1 Bh4 Nd6 Kh3 Ndb7 g5 Rh8 Qc7 Kf1 Qd8 Rb1 Qe2+ Kg1 a2 Na5 Qc4 Rf8 Qa4 Bf6 Ne4 Kf1 f2 Ke2 f3+ Ke3 f1R Rb2 f2 Re2 Re1 Be5 f1Q Bd4 Nf2 Bf6 Qb6 d8N Qc7 Ndc6 Qd8 Qc2 Red1 Qh7 R1d2 Qh5 Qd1 Kf3 Qc2 Re5 Rh1 Ke3 Rhd1 Nc4 Rd7 N4a5 Rf7 Ree8 Rd5 Re6 R1d2 Re5 Ne8 Bh8 Ng7 Re4 Qd1 Re5 Qe2+
2n2RBn/1bk1N1r1/6Q1/K4rp1/3pNbqP/1q1R4/2r1R1p1/1RBqbR1q w - - 0 1 illegal: No possible last move
N1RnN3/b2rb1N1/2q3qQ/3B1Pb1/1Bn1p2N/1Rr1k2q/pp2n2N/3b1K2 w - - 0 1 illegal: No proof kernel
1N1B1N2/1n2Nk2/2rRN1rK/2r2pRp/1P4b1/2qQ1p2/3bnNB1/r2q1b1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 b4 f5 e4 d5 g4 a5 c4 d3 e5 a3 e6 h3 e7 d4 c5 a2 c6 a4 c7 a3 g5 h2 g6 Nc6 g7 Na5 Qc2 Ba6 c8N Kf7 e8N Nb7 Nf6 Rh6 Nc3 Rg6 Nf3 Qc7 Na7 Rc8 Bg2 Ne7 g8N Nc6 Nce4 Bh6 Rd1 h1N Nh7 Qe5 Rb1 a1R Ne7 a2 Nf2 Bb5 Rb2 Rb1 Rg1 a1R Nf8 Ra6 Ra2 Ra1 Ra5 Bc4 Rd5 R6a5 Rd6 Rc5 Bf1 Rc7 Rg5 Bb5 Bg2 Qf6 Kd1 d2 Qd3 Ba6 Ke2 d1B+ Kd2 Rc8 Qa3 d3 Nd4 Bg4 Nde6 f3 Ke3 d2 Kf4 d1Q Qd3 Nd4 Nac6 Bb5 Nb8 R8c6 Be3 Nb3 Bc1 Qc3 Bd2 Nc1 Be3 Re5 Bb6 Rec5 Bd8 Ne2+ Ke3 Neg3 Kf4 Ra4 Qb1 Qa3 Qc2 Bg7 Qd2 Bf1 Qe3 Bc3 Qd3 Rg8 Rg6 Ne2+ Kg5 Bd2+ Qe3 Qb2 Kh6 Ra1 Rg5 Qc3 Qd3 Rg6+
1Qrb2n1/1r2qbNn/1R5p/1NN3P1/R1rK1Bpk/5pN1/1N1n2B1/1q1bb3 w - - 0 1 illegal: No proof kernel
B1n2B2/b1R1Q2K/5B1p/2rp1b1p/1nnRNBP1/4b3/1qkq2Nr/Bn1q4 w - - 0 1 illegal: No proof kernel
k2K2rb/8/q2p1b1q/Nn4N1/qpNpP1r1/4N2R/r1RN2q1/Q1BB1n1b w - - 0 1 illegal: No possible last move
2r2nq1/bRNBqQ2/K1pn4/R1B3Rb/2pq1P1k/1N1b4/Rp3nR1/3r2n1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 a4 Kf6 g4 Kg5 d4+ e3 a5 b5 a6 e5 a7 h5 f3 h3 d5 c6 d6 h4 d7 b3 Bd2 e4 Nc3 h2 Na4 b4 Qe1 b2 Bg2 b1B Bc1 h3 Ra2 b3 Ba3 b2 Nb6 Ne7 Qf1 Nf5 Nd5 Nd6 Nc7 Kh4 g5 Bd3+ Kd1 e2+ Kd2 e1N Kc3 e3 Kb4 e2 Ka5 Be7 g6 Qg8 d8R Nd7 g7 Nf8 Bc5 Bg4 Ka6 Bh5 Rd7 Rd8 a8R Bg5 Rf7 Be3 Rf5 Rc8 Rg5 Rh6 Ra7 Re6 Ra5 Re7 Rb7 Rd7 f4 Nf3 Qa1 e1Q Ne2 Ng1 Nc1 Bd4 Nb3 Qe7 Qe1+ Bf2 Qe6 Be3 Qf7 Bd4 Bb4 Ba7 Be4 Nf3 Re1 h1N Bf5 h2 Rea1 Ng1 Bc5 Nf2 R1a2 h1Q Be6 Rdd8 Bd7 Qd5 Rg2 Qh8 g8R Qdd4 R8g5 Qg8 Bh3 Nf5 Bg4 Rd5 Bh3 Nd6 Bf5 Re5 Bg4 Re1 Bd7 Rd1
1bB1n3/qQq2r1q/1p2p2p/1N2P3/R5R1/N3R1r1/K3b1Rq/r1kBbRn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 d4 c5 h5 cxd4 h6 f4 Be3 fxe3 Nf3 gxh6 Ng1 h5 Qd2 h4 Qc1 Qc7 Qd1 Qd8 g4 Kf7 c4 Ke6 f4 d5 a4 d3 a5 h6 g5 d2+ Ke2 b3 Kd3 b6 Kc3 b2 Kb3 e2 e5 Kf5 g6 Ke4 f5 Kd3 f6 h3 c5 d4 f7 e6 c6 h2 a6 Bd6 f8R Rh7 g7 Qc7 a7 Nf6 g8B Rf7 Nc3 b1R+ Ka2 Ne8 Nf3 Ba6 Rg1 h1Q Rg2 Qh2 Nb5 Ke3 Qa4 d1Q Ne1 Kd2 Bh7 d3 Nc2 Kc1 Qe4 e1B Nca3 d2 Rfg8 Qa4 R8g4 d1Q Qd5 Qdd4 Bc2 Qd3 Bd1 Qh7 Bc4 Qb7 c7 Nc6 c8R Qc7 Qf3 Nd4 Qb7 Nf3 Bd5 Rb8 a8R Ng1 Bc6 Qa5 Bd7 Qa4 Rd8 Qa5 Bc8 Qa4 Nc3 Be2 Nb5 Qa7 Rd7 Be7 Rd3 Bd6 Bd7 Rd8 Bc8 Rdd7 Rb3 Rf3 Re3 Rdf7 Rg6 Rg3 Rg4 Qab8 Raa4 Qa7 Rf2 Qd8 Rg2 Bb8 Rh4 Qe7 Rhg4 Qc7 Rac4+ Kd2 Bc2 Rb4 Qc6 Bf2 Rf1 Rb1 Qb7 Be1 Ra4 Kc1 Bd1 Ra1+
1RK2BbB/4rQ1b/Pp1r1Nn1/r1Rq1q2/n4kB1/2B1bN2/p2B3p/1n3b2 w - - 0 1 illegal: No proof kernel
2q2qbb/1p1b1kN1/1P6/N1Rpp2n/1Br1B3/N1r1q1Nb/1n5Q/N2K1n1R w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 c5 b5 cxd4 Qe2 f5 Qd2 fxe4 Qb4 axb4 f4 h5 c4 e5 g4 d5 a4 d3 g5 e3 b6 b3 c5 h3 g6 h4 f5 h2 a5 b2 a6 e2 c6 h3 g7 Nf6 g8N Ng4 f6 Ne3 a7 Bg7 c7 Bd7 c8Q Rh4 Nd2 b1B Ra5 Rc4 Rc5 Bh8 Nb3 Kf7 Bd2 Qf8 Bg2 Nf1 Be4 Bc2 Bb4 d2+ Kf2 d1N+ Ke1 Rc3 Na1 Nb2 Ne7 Rc4 Nc6 Bd3 Bf3 Bh7 Na5 Bg8 Be4 Rc3 Qc6 Qc8 Qa4 Qf8 Qa2 Rc4 Kf2 e1Q+ Kf3 Qc1 Ke2 Qch6 Ke1 Qc8 Ne2 Qhf8 Ng3 Rc3 Rg1 h1B Ke2 Bg2 Rh1 h2 Ke1 Ke6 f7 Bh3 Ke2 Be8 Ke1 Nd7 Ke2 Rb8 a8N Nf6 Nc7+ Ke7 Nb5 Bed7 Na3 Nh5 Rg1 h1Q Ke1 Qh2 Rh1 Qg1 Ke2 Qg7 f8N Kf7 Ne6 Qgf8 Ng7 Ra8 N5c4 Ra4 Na5 Nd3 Kd1 Qe3 Nb1 Qc6 Qh2 Qcc8 Ba3 Rd4 Bb4 Rdc4 Na3 Nb2+
3B1R2/1B6/K1rqr3/1RpqbBqB/1qq2q2/1P2nb2/1Np2Qpk/N1B1n3 w - - 0 1 illegal: No possible last move, all moves rejected
2qrn1R1/1RrNpkN1/5n1p/5R2/4Q1bP/1p3bbR/B2b4/BnKb1nR1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 d4 b5 h4 f5 a4 c5 g4 c2 Kd2 h6 a5 f3 g5 f4 a6 e3+ Kc3 c4 Kb2 e2 d5 e1B a7 c3+ Kb3 b4 g6 f2 g7 f3 d6 Na6 d7+ Kf7 Bb5 f1B Qd3 f2 Ba3 c1N+ Kc2 b3+ Kd1 Na2 Nh3 Nc7 Nd2 Ne8 Qe4 Bg2 Bb2 f1B Nf3 Ngf6 g8R Bg7 Bd3 Bg3 Bb1 c2+ Kd2 c1N Nf4 Rb8 a8R Rb7 Rb8 Be2 Nh5 Rc7 Rh3 Bd1 Rb7 Nc3 Ba2 N1e2 Rb1 Bh1 Ba1 Bg2 Ne1 Bf3 Nd3 Bh2 Nc5 Ng3 Kc1 Nf1 Qe2 Bg3 Qe4 Bf8 Rg5 Bg7 Rf5 Rg8 Rb2 Bh8 Rg2 Nb1 Rg1 Bg4 Rb5 Bb7 Ng7 Qc8 d8R Bc6 Rb7 Bd5 Qb4 B5f3 Qe4 Nd6 Rd7 Rd8 Rb8 Ne8 Ra8 Rc6 Rb7 Rc7 Ra6 Rd5 Nh5 Rd8 Rd5 Nd7 Rg6 Na3 Rg8 Bc3 Ng7 Ndf6 Rf5 Nb1 Nd7 Bd2+
1k4q1/rp1B1RQ1/3rP2N/r2p2K1/3B1rbq/1Br4N/1Rrp2n1/1BbBn3 w - - 0 1 illegal: Other
2B2kBb/2B1rb1B/1rP1q3/5b1n/5bRQ/ppKN2rB/p6n/1N2r1Rn w - - 0 1 illegal: No proof kernel
1q3N2/1rn1bBRp/pNb1Rn1k/Pb6/4r3/1R2r2r/1Rp1nBK1/3RQ1b1 w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 b4 Kf7 f4 Kg7 Kf2 d5 a4 c5 g4 e5 g5 h3 g6 e3+ Kf3 d2 a5 h2 b5 e2 f5 e1B f6+ Kh6 b6 c4 b7 c3 f7 c2 g7 d4 Ne2 e4+ Kg2 d3 Bb2 e3 Bc1 Nf6 g8R Bf2 Nbc3 Bg1 Ra2 Na6 b8R Bb7+ Kg3 Nc7 Rc8 a6 Qe1 d1B Na4 d2 Nf4 e2 Rb8 Be7 f8R Ra7 Re8 Bc6 Ne6 Rb7 Rg7 Bb5 Nf8 Rg8 Qf2 e1R Kg2 Re4 Qe1 Bc6 Ra3 Be2 Nb6 Beb5 Bc4 Qd6 Bb2 d1N Rb3 Nc3 Bf7 Ne2 Bd4 Qd8 Bf2 Qc8 Rgg3 Rg5 Rb2 Rge5 Rg7 Re3+ Nd5 R5e4 Nb6 Bd6 Re6 Qe8 Rd8 Be7 Rd3 Qa8 Rdb3 Qb8 Bh4 Bf2 Rf1 Bg1 Bf2 h1R Qb1 Rhh4 Rd1 Rhh3 Qc1 Qa8 Qd2 Qa7 Qe1 Qb8
3B3N/Bq2bnbr/RR1B4/N1K1q2b/B2B2bq/2p1nQ2/2p1pP1q/3r1k2 w - - 0 1 illegal: No proof kernel
4bR2/1Bq1Rrqn/2n1B2b/1N4Q1/1pB2b2/1Pp2rr1/1prN2K1/bB2kB2 w - - 0 1 illegal: No proof kernel
2q2b1n/6kq/4R1NN/2n1q1pq/1p1rpnB1/Q1nb1NBP/3N4/RNK3r1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 a4 d5 c4 e5 f4 g5 h3 b5 a5 d3 a6 g3 c5 d4 f5 b3 a7 b2 f6 e3+ Ke1 e2 Kd2 g2 c6 b4 c7 Ba6 c8N Nd7 Rh2 Ne7 Qe1 Nc5 Qd1 Rh4 Nc3 b1Q Rh1 Ng6 Ne7 Qc8 Qa4 Nh8 Nf3 g1N Ng8 Kg6 f7 Kg7 Nh6 Bc4 Qa3 Qc2+ Ke1 d2+ Kf2 d1Q Nb1 d3 Ke3 e1Q+ Be2 d2 Rh2 Be7 f8N Rd4 Ng6 Bd3 Bb2 Bf8 Bc3 Rb8 a8N Qg3 Nb6 Ra8 Rg2 e4 Rf2 Qe5 Nc4 Qa4 Bb2 Qae8 Bc3 Qda4 Rf1 d1N+ Kd2 Qa7 Kc1 Qae7 Bd2 Nc3 Be1 Q8f7 Bg3 Ra4 Nf4 Qh5 Ng6 Qf7 Rf2 Qg8 Ncd2 Qh7 Nh2 Ra7 Bg4 Rf7 Rf6 Nge2+ Kb2 Ra7 Nhf3 Nf4 Kc1 Ra8 Re6 Ra5 Qb3 Ra2 Qa3 Rb2 Nb3 Rg2 Nb3d2 Rg1+
2N3q1/rb1R1R2/bR2bP2/p3r1rR/2ppBR2/Nnr2nq1/2QB4/k2K2b1 w - - 0 1 illegal: No proof kernel
n7/1R6/1bBN1npp/R1QKB1p1/Rb1b3q/2rp2b1/rkb2R1P/1N4Rr w - - 0 1 legal: proof: e4 b5 a4 bxa4 d4 f6 g4 c6 d5 cxd5 g5 dxe4 Bc4 fxg5 Bf1 e3 Ke2 Kf7 Kf3 Kf6 Ke4 d5+ Kd4 a5 f4 e2 b4 e1R c4 a3 f5 a4 b5 h6 b6 a2 b7 a3 c5 Nd7 b8R Nb6 Kc3 Ke5 c6 d4+ Kd3 Nf6 Nc3 g6 Rb1 a1B c7 a2 Bg2 e6 Qf3 Bb4 Qf2 Qd5 Nge2 Qe4+ Kd2 d3 Rb7 Qh4 Ke3 Bd7 c8R Ba4 Rc4 Bc2 Bc6 Rhc8 Ne4 Bd4+ Kf3 a1B Bb2 Ra3 N2c3 Na8 Nd6 Ra2 Rg1 Be3 Rc5+ Kd4 Ra5 e5 Ra4 Rc7 Rb5 Rd1 Rba5 Rf1 Rg2 Rh1 Rgg1 Nd7 f6 e4+ Kg2 Rc8 f7 Nf6 f8R Rc7 Qf5 Bf2 Rf7 e3 Kf3 e2 Rbf1 Bg3 Rf2 e1B Nb1+ Bc3 Re7 Rc8 Rb7 Rc7 Nf7 Kc4 Qb5+ Kb3 Qc5 Bd4 Nd6 Be3 Be5 Bad4 Bd7 Kb2 Be8 Ng4 Ke4 Rc6 Kd5 Rc8 Qb5 Rc3 Bc6 Bb6 Qc4 Bed4 Qc5 Nf6+
b1r1B1q1/BK3pPn/6bp/2pBp2N/1n5k/1Rrr2b1/2r1Q1r1/1B2BR1N w - - 0 1 illegal: No possible last move
B1rnnB2/1r2P1nB/1B1p1B1R/1N1b2b1/2np3N/p2p3K/RbQ5/1r4kq w - - 0 1 illegal: No proof kernel
q1Q4N/R1rpk2b/RR2N2p/1q1p1q1b/1p2B3/1KBnb2R/r2PR3/2q3n1 w - - 0 1 legal: proof: h4 e5 f4 exf4 b4 a5 h5 axb4 c3 c6 h6 gxh6 Qa4 h5 Qb5 h4 Qd5 cxd5 Kd1 b5 Kc2 f5 e4 f3 g4 h6 a4 h3 g5 f2 a5 f4 c4 h2 a6 f3 e5 Bd6 e6 Bg3 g6 Ne7 g7 Ng6 g8R+ Ke7 c5 Ne5 c6 Bf4 a7 Nd3 c7 Be3 Ne2 Nc6 Na3 Ba6 c8Q Nce5 Bg2 f1Q Nc4 f2 Be4 Nf3 Kb3 Ng1 Bb2 Qh3 Bc3 f1Q Ra5 Qhf5 Rg6 Rf8 Ne5 Qe8 Ka2 b3+ Ka3 b2 Nd4 b1B Nf7 b4+ Kb3 Qc1 Nh8 Qd8 Rb5 Qa5 Rb6 Qb5 Qc4 Rac8 a8R Rc7 Ra7 Ra8 Qc6 Nf2 Qb7 Bd3 Qb8 Be2 Qc8 Nd3 Rg3 Bh5 Rh3 Nf3 Re1 h1Q Re2 Ng1 Reh2 Kf6 Re2 Qh2 e7+ Qd6 e8R Qdc6 Rf8+ Ke7 Rf6 Qb7 Rfc6 Qb8 Rab7 Ra7 Rd6 Qa8 Ne6 Qff1 Rg2 Qa5 Rb5 Nf4 Bf3 Qb6 Ra5 Bd3 Re2 Bh7 Be4 Qb5 Rdb6 Nd3 Ra2 Qf5 Ra1 Ra2 Ra7 Rc2 R1a6 Ra2
K3k1n1/p1B5/1Q1BpqpB/2RN2Pq/Rb3b2/1B2Npbb/1Bn5/nrr5 w - - 0 1 illegal: No proof kernel
q2RN3/3r2Q1/N1n1kp1p/b2n1r2/bpRb1nN1/3pP1N1/B4Kb1/1Nn3B1 w - - 0 1 illegal: No proof kernel
3NKQbn/p2r2q1/rN3RNp/3nNb1k/1N4p1/b7/bP2Bpr1/2rRB3 w - - 0 1 illegal: No proof kernel
3N2Rb/brn1rN1n/5p1R/p2pN2N/1r2N2p/1kBp1BrP/b6K/2q2Q2 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxb4 a4 bxa4 f5 e5 f6 exd4 Bb2 gxf6 Ba3 f5 Bc1 f4 Kf2 Ke7 c4 Ke6 g4 a5 Kg2 h5 e4 b3 g5 b2 e5 a3 c5 Kd5 e6 d3 g6 Kc4 c6 a2 c7 Nf6 e7 Rh7 e8N Na6 g7 Rb8 g8N Rb7 Be2 Bc5 Nf3 Ba7 Qf1 Kb3 Nc3 b1R Ne5 f3+ Kh3 f2 Ne7 Rg7 Ne4 Nh7 N7c6 Qg5 Bb2 Qc1 Nd8 d6+ Bg4 Be6 c8N Nc7 Bc3 Bd5 Bf3 Rg3+ Kh4 Bc4 N8f6 d5 Ncd6 Rb2 Rb1 a1B h3 Rb4 Rg1 Rb7 Qe2 f1R Qe1 Rf2 Qf1 Re2 Rg2 Rg8 Rg4 Re3 Kg3 Re8 Rg8 Re7 Qf2 h4+ Kh2 Rb4 Nh5 Rb7 Bh1 Rg3 Bf3 Ka3 Qe2 R2b4 Qf1 Ba2 Rb2 Ka4 Rg2 Kb3 Rg1 Rg7 Rg6 Bb2 Rh6 Rg4 Bd2 Bbd4 Bc3 Rg3 Nec6 Bg7 Ne5 f6 N6f7 Bh8
1BBk2B1/1b2N3/NbR3R1/qb1r2r1/4p2P/Rrn5/n7/1n1QrRK1 w - - 0 1 illegal: No possible last move
1Rb1n1n1/q1pB1B2/2bBr1rk/2Q2R2/r3bP1r/1N4Nb/5N1K/6nB w - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 g5 b4 a5 h3 axb4 h4 gxh4 Rh3 e6 Rh1 Bc5 Rh3 Bd4 Rh1 Ba7 b6 Nd7 bxa7 Nb8 d4 Kf8 f4 Kg7 Kf2 h5 g4 e5 Kg2 b3 g5 c3 g6 h3+ Kg3 h2 d5 b2 d6 e3 d7 c2 Bh3 h4+ Kg2 e4 Qd2 e2 Qd5 e1N+ Kf2 e3+ Kf1 Nf3 Kg2 e2 Nd2 b1B Ra5 e1R Ne4 Kh6 Nf2 Re6 Ne2 Ng1 Ba3 c1R g7 Bf5 Bd6 Rc6 Qc5 Ra6 Bg4 h3+ Kg3 Qf8 d8N Nd7 Nc6 Ndf6 Ncd4 Ne8 Nb3 Qf6 Rb5 Qa1 Rb8 Ra4 Rb7 Rb8 a8B Rh7 Rb5 Rb6 Bc6 Rba6 Rb8 Qd4 Bgf3 Bg4 Bd7 Qe3 Qf5 Qa7 Qc5 Rg6 Be7 Rae6 Bd6 Rh8 Be4 Nf3 Rd1 h1B Rd5 h2 Rf5 Ng1 Bec6 Bd5 Ba8 h1B Kh2 Bh3 Ng3 Bc6 Bb7 Ngf6 g8B Bhe4 Bf7 Ng8 Ba6 Bf3 Be2 Bfe4 Bf3 Kg7 Bg2 Rh4 Bh1 Kh6
1kq2B1b/1Nr1R2p/q2r1R2/1b1n3B/4Kr2/5r1N/r1pNQ2P/n2BB3 w - - 0 1 legal: proof: d4 f5 c4 b5 b4 e5 g4 fxg4 f4 gxf3 a4 d5 cxd5 exd4 axb5 a5 Ra2 axb4 Ra4 Qe7 Ra1 Qd8 Kd2 Kd7 Kd3 c5 e4 Kc7 e5 g5 e6 c4+ Ke4 g4 e7 c3 e8B b3 Qe1 g3 Nh3 b2 Bd2 d3 Qe2 g2 Ra2 g1Q Na3 b1R Qf2 c2 Qg2 f2 Qg4 Bd7 Bf7 Ne7 Bg6 Bg7 Qg5 Rf8 Qg4 Na6 d6+ Kb8 b6 Bb5 d7 Nd5 b7 Rf5 Nc4 Bh8 Be2 f1R Bh5 Qgb6 Bd1 Qc8 d8N R1f3 Be1 d2 Rf1 Ra7 Ra3 Rb2 Re3 Ra2 Qg2 Qf6 Qe2 Qh6 Rg1 Qd6 Rg6 Qa3 Rf6 Nc5+ Kd4 Qa6 Re7 Nb3+ Ke4 Qd7 Bg4 Na1 Bh5 Kc7 b8B+ Kc8 Rc6+ Rc7 Nb7 Qd8 Ba7 Qe8 Bd4 Kb8 Bg7 Qd7 Rf6 Qc8 Qf1 Qa8 Bf8 Qa6 Be2 d1R Nd2 Rb1 Bd1 Rbb3 Ng1 Rbc3 Nh3 R3c6 Qc4 Rd6 Qe2 R5f4+
1n1r2q1/QB1k1N2/3r3B/B2R4/p1PK2rN/2rb1r1R/3pq2n/nN2B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 Kd2 gxh4 g3 f5 e3 dxe3+ Kc3 f3 Kc4 f2 Qf3 f4 Qd1 f3 Kd4 Bh6 Kc3 Bf4 gxf4 Kf8 Qd4 Kf7 Qd1 Ke8 b4 h5 b6 d5 b5 a5 b7 e2 b6 e1N f5 h3 f6 h2 f7+ Kd7 f8B a4 Bg7 h4 Qd4 h3 Bg5 Rh4 B5h6 Nf6 Qb4 d4+ Kc4 d3+ Kc5 Qg8 c4 Ng4 Bg2 f1Q Bc3 f2 Kd4 Qe2 Qa5 f1R Qa7 Rf3 Ba5 d2 Ra3 Rc3 Rb3 Rf3 Rb5 Rc3 Nf3 Nc2+ Kc5 Na1 Kd4 Kc6 Rd5 Bf5 Ne1 Bd3 Nf3 Rh5 Nh4 Rf5 Be4 Rf6 Bf3 Rd6 Bg2 Kd7 Bf3 Na6 Bg2 Rd8 b8B+ Ke6 b7 Kd7 Rf1 h1R Rf3 h2 Rh3 Rg1 Bbc7 h1R b8N+ Ke7 Nd7 Nh2 Ne5 Nb8 Nf7 Rf1 Be4 Rhg1 Bf3 Rg4+ Be4 R6d7 Bg3 Rf3 Be1 Ke8 Bg3 Rd6 Be1 Rgg6 Bf5 Rg2 Bc8 Rg1 Bb7 Kd7 Bf4 Rgg3 Bh6 Rg4+
3rN3/2r2BN1/K1p2Bnq/q3q3/3Q1BR1/q3b3/2qrp1NP/R2Nnk2 w - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 h5 g4 hxg4 b3 a5 b6 a4 Be2 a3 Bd3 Bd7 Bf1 Ba4 bxa4 Rh6 Ke2 Rh4 Ke1 Rh8 Ke2 Kf7 f4 Ke6 d4 Kf5 a5 e5 a6 g5 a7 a2 b7 c3 d5 c6 d6 g3 d7 Kg4 f5 c2 f6 g2 f7 e3 Kd3+ e2 Kc4 e4 Na3 e3 Nb5 Bh6 f8Q Qe7 d8B Nd7 b8N Qe5 Rb1 a1Q Qfd6 Ne7 Kb4 Rh7 Ba5 Nc5 Qd8 Ng6 Nc3 Rc7 Nf3 Kh3 Na6 e1Q Nh4 g4 Rg1 g3 Bc4 e2 Q1d4 Be3 Bf7 Rac8 Bb2 c1Q a8N Qc2 Q8d5 Qec1 Nd1 Rd8 Bc3 Qaa2 Ra1 Q1d2 Bb6 Qc4+ Ka5 Nd3 Bc5 Ne1 Bd6 Qdc1 Nc5 Qa3+ Kb6 Q4d3 Bb2 Qdc4 Ne6 Q4c3 Rf1 g1Q Ng2 Qf2 Ng7 Qff6 Rg1 Qh4 Qa5 Qh6 Nh4 g2 Ka6 Qeg5 Bf4 Qe5 Rh1 g1R Ng2 Rf1 Rg1 Rf3 Nb6 Rg3 Nd5 Rg5 Nf6 Rf5 Nfe8 Rf6 Qa7 Rfd6 Qc5 Rd2 Qd4 Rdd7 Qc4 Qe6 Nh4 Q3d3 Bc1 Rd8 Bb2 Qee4 Bf6 Qdc3 Qd4 Qe5 Nhf5 Qd5 Rg4 Qe5 Bg3 Kg2 Nh4+ Kg1 Ng2 Kf1 Bf4 Qcxa5#
3k2K1/2n5/N1Q1pN2/N1q2pRN/bPR2r2/2q2Bnp/b4Bn1/1q2B2n w - - 0 1 legal: proof: f4 g5 c4 d5 e4 dxc4 h4 gxh4 a4 c5 d4 a5 f5 b5 f6 bxa4 Qd3 c3 Qe2 e6 Qd1 Be7 fxe7 Ra6 Qf3 Rd6 Qd1 Rd5 exd5 cxd4 Be3 Kd7 Bg5 Nf6 Bc1 Ng8 Ke2 f5 Kf3 h5 Kf4 c2 Ke5 a3 e8N d3 g4 d2 b4 a4 g5 a2 g6 a3 d6 h3 g7 h2 Ne2 h4 Bg2 h3 Nc7 Bb7 Ng3 Ne7 Kf6 Nd5+ Kf7 Nf4 g8N Na6 Qf3 d1B Nh5 Bd5 Rg1 h1N Be3 c1N Nd2 Nce2 Nb3 Qc8 Bf2 Kd8 d7 Neg3 Rc1 a1Q Na5 a2 Ngf6 Ba4 Rc4 Qc3 Qe4 a1Q Bf3 Rh7+ Kg8 Qb1 Qc2 Ng2 Qe4 Nb8 Na6 Qc5 Be1 Bb3 Bf2 Bc6 Qd5 Bca4 Qc6 Ba2 Ng7 Rh4 Ngh5 Ne2 Be1 Rf4 Bf2 Ne3 Rg5 Neg3 Be1 Ke7 Kh7 Ng2 d8B+ Kf7 Bb6 Ke7 Ba7 Kd8 Kg8 Qd6 Nc5 Na6 Bb6+ Nc7 Na6 Qd5 Bbf2 Qc5
1Bb5/3pkB1n/ppP3qr/2r2B2/1r1p1nNn/1R1qNK2/2N5/3Q2RN w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 b4 cxd4 h4 gxh4 b5 Bg7 Nh3 Bh6 Ng1 Bf8 a4 a6 a5 Qxa5+ Qd2 Qd8 Qd1 Qc7 b6 Qxb6 Nc3 Qd8 Nb1 b6 f4 e5 Ra4 e4 Ra3 Bd6 Ra1 Be5 fxe5 Kf8 Bc4 Ke7 Bf1 Ke8 Ke2 h5 c4 e3 g4 h3 f6 h4 c5 h2 e6 h3 f7+ Ke7 f8N Qe8 g5 Nf6 g6 Kd8 e7+ Kc7 g7 Kc6 g8B Nh7 Ne6 Qg6 e8N Ra7 N6g7 Rc7 Kf3 e2 Ra3 Qd3+ Be3 Qg6 Bf7 e1N+ Ke2 Ng2 Nf6 Qd3+ Kf3 Qg6 Ne2 Qd3 Rg1 h1Q Ng4 h2 Be8 Kd5 Nf5 Ke6 Rc3 Nc6 Na3 Ne7 Rb3 Nd5 Nc2 Ndf4 Neg3 Rc6 Ne7 Qg6 Nd5 Rc7 Bd2 Rc6 Nde3 Ke7 Bd3 Rc7 Re1 Qg1 Bb4 h1R Bf5 Rh6 Bf7 Qf1+ Ke4 Re8 Nh1 Qd3+ Kf3 Rf8 Rg1 Rc6 Bg8 Rff6 Be1 Rfd6 Bg3 Rd5 Bf7 Rc7 Kf2 Re5 Nc4 Re1 Nc4e3 Rc6 Kf3 Re2 Na3 Rb2 Nc2 Rb1 Rc3 Rb4 Rb3 Rd6 c6 Rd5 Bh2 Rc5 Bg3 Nh3 Be5 Nhf4 Bb8 Nh4+
n1KB1R2/P1b5/q1Nq2rk/1B3r2/nB3Nrb/1rN2r1n/Rq2q3/3Q3N w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 h5 c4 hxg4 Qa4 b5 Qc2 b3 Qd3 b4 Qd2 Ba6 Qd1 Bb5 cxb5 Rh4 Kd2 Rh3 Ke1 Rh8 Kf2 d5 e4 f5 h4 Kf7 a4 Kg6 h5+ Kh6 e5 g5 a5 b2 a6 d3 b6 d4 b7 g3+ Kf3 d2 a7 b3 e6 d3 e7 g4+ Kg2 Nf6 e8N Bd6 Ne2 f3+ Kg1 g2 Kf2 g1R Ke3 f4+ Kd4 f2 Ra4 f3 Ra2 g3 Kc4 g2 Kb5 Rg8 Na3 b1Q Bb2 Nfd7 Bh8 b2 Nd4 Na6 Kc6 Ndc5 b8N Rg4 Qe1 d1Q Nac2 d2 Bf6 Qe2 Nc7 d1N Nd5 Bc7 Nce3 Na4 Kb7 Qd6 Nbc6 Rf8 Bd8 Rf5 Ne6 Qbc2 Nef4 b1R+ Kc8 Rb3 Rh2 Qb2 Nc3 Rh1 Ne5 g1B Nc6 Rg6 Rg2 Rh4 Qd2 Bh2 Qc2 Bg3 Ng4+ Kg7 h6+ Kh7 Nge5 Rhg4 Ned3 Bh4 Rg1 Qe1 Be2 f1Q Nf2 Qed2 Bc4 Qde2 Nh1 Nf2 Qd1 Nh3 Bb5 f2 Rg3 Qb1 Rf3 Qbb2 Qd4 Qfa1 Qd1 f1R Rf2 Bb6 Rf3 Nc7 Rf2 Na8 Rf3 Kg8 h7+ Kg7 h8B+ Kh6 Bd4 Rf2 Bc5 Bc7 Bb4 Rf1 Re3 Rf3 Re8 Qac1 Rf8 Qce3 Ra1 Qb6 Ra2 Qa6+
6R1/1b1r2r1/2kqb1NN/2b2B1n/n1NR1q1Q/RPBrq2K/2Nq1n2/7b w - - 0 1 illegal: No possible last move
1Kn1bk2/R2q1rnb/b1Nn1N2/4PN2/2Q2bn1/nB5R/1NrnBq2/1B6 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Bd2 exf4 Bb4 axb4 a5 b6 axb6 Ra4 Nc3 Ra6 Nb1 Ra8 Kd2 f5 Kd3 h5 Kc4 d5+ Kd3 b3 c4 f3 e4 f4 g4 b2 e5 h3 g5 h4 g6 h2 c5 f2 c6 f3 b7 h3 b6 Ne7 c7 Rh7 g7 Ra2 g8B Qd7 Qe2 Na6 b8N Nc5+ Kd2 d3 Ke3 d4+ Kf4 d2 b7 d1B Nc3 b1N Ne4 d3 Be6 d2 Ng3 Bc2 Ne4 d1B Qb5 Bh6+ Ng5 Ne4 Ne2 Na3 Nc6 Kf8 b8N Nd6 Nb4 Ba6 Ng3 Nec8 Be2 f1Q Nf5 f2 Nd3 Rf7 Nb2 Qg1 Qb4 f1N Bb3 Nd2 Qc4 Qf2+ Kg4 Bd3 Ne4 Bf4 Nf6 Be4 Nc6 Bdc2 Rhg1 h1N Rg3 h2 Rh3 Bcd3 Rh4 Ng3 Rh3 Na7 c8B h1N Bb7 Nh5 Bc8 Qe7 Be6 Ng7 Bd5 Bg2 Be4 Bc2 B4d3 Qd7 Be4 Nac8 B4d3 Bd1 Bb1 Bd5 Nd3 Rc2 Nb2 Be4 Ra2 Nab5 Ra5 Na3 Ra4 Bb7 Ra7 Ba6 Nd4 Nde8 Ba4 Qc7 Ne7 Ned6 Re3 Rc3 Rh3 Qe1 Bac2 Bc6 Bb3 Be8 Ndc6 Bc2 Bd1 Bg3 Be2 Bh7 Kg5 Rc2 Kg4 Nf2+ Kg5 Bh4+ Kf4 Nb7 Nf5 Bg3+ Ke3 Qf1 Kd4 Nbd6 Kc5 Qe1 Bd3 Qd7 Be2 Ng4 Kd5 Bf4 Kc5 Ne7 Kb6 Qe6 Kc7 Nec8+ Kb8 Qd7 Rh5 Qg3 Rh3 Qf2
3b2B1/2b1q1nr/1Q2rR2/2q1kN1n/3r4/nRK1P2N/1N1B1rn1/q1R3Rq w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bb2 f4 Ba3 Ra4 Bc1 Ra8 h3 fxg3 Qd2 g5 Qd3 g2 Qd1 g4 Nc3 b6 Qd3 g3 Nb1 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Qc8 Ba3 Qc7 Bc1 Qd8 Kd2 Ke7 a4 Kf6 c4 h5 g5+ Ke5 a5 d5 g6 f5 g7 f4 a6 b5 c5 d3 c6 f3 a7 h4 c7 f2 c8N d4 Qe1 b3 Nc3 b2 Rh3 b1N+ Kd1 d2 Kc2 d1N Nb6 d3+ Kb3 d2 Rh2 h3 Na2 b4 Nc8 Nh6 g8R Nf5 Ba3 Qe7 Rg5 Nd7 Kc2 b3+ Kd3 b2 Nb6 Re8 a8R Rh7 Nc1 Nf6 Ra7 Ne3 Nd5 d1R+ Qd2 Nh5 Bb4 Na3 Kc3 b1Q Qb2 Rd4 Rb7 Qa2 Rh1 h2 Rg6 Nfg7 Nh3 g1Q Rf6 Ng2 Ne3 Qd5 Nf5 Qdd6 e3 Qc5+ Bc4 f1R Na2 Rf2 Nc1 Qd1 Rg1 h1Q Ne2 Qb1 Nef4 Qa2 Rac1 Qa1 Ba5 Ne1 Rf1 g2 Rb3 g1B Bb4 Bh2 Rg1 Ng2 Nd3+ Ke4 Ba5 Bc7 Bb4 Qa2 Qb1 Qa1+ Nb2+ Ke5 Ba5 Qed6 Bb4 Be7 Ba5 Bed8 Bb4 Qb5 Bg8 Re6 Qd3 Qe8 Qa6 Qef8 Qb6 Qde7 Ba5 Qef7 Bb4 Rc4+ Kd3 Qc5 Bd2 Qfe7 Qa6 Qb5 Qb6 Rd4+ Kc3 Qbc5+
6k1/r1Q1K1Nr/n3b3/N3BqbP/7R/1qR1qqr1/R3n1b1/rNR1Bb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 f5 Kd3 Kf7 Kc4 a5 Kd5 g5 e4 d3 c4 a4 b4 g4 h4 f4 e5 f3 c5 a3 h5 a2 b6 f2 c6 f1B b7 d2 c7 Bh6 Kd6 Ra7 b5 Qg5 b6 Nf6 e6+ Kg8 e7 Qf5 e8N Nd5 Qa4 d1Q Qb3 Qdf3 Rh3 Rh7 Bd2 Bg5 Ng7 Na6 Ne6 Nf4 b8B Ne2 Qa3 Qb3 Nf3 g1Q b7 g2 Qc1 g3 Ng7 Qf2 Bb4 g1R Rh4 g2 Nd4 Q2f3 Be1 Rh1 Qb2 g1Q Nc6 Rh3 Na5 Rg3 Qc3 Qge3 Qe5 Bf4 Ke7 d5 Kd6 d4 Ke7 Be6 Qc5 d3 Qc2 Rh6 c8R+ Kh7 Rc5 d2 Be5 d1B Rc3 Kg8 Qc1 Rh7 Qc2 Bd7 b8R+ Bc8+ Rb7 Be6 Rbc7 Bh6 Qe4 Bc2 Qb7 Be4 R7c5 Bc6 Qc7 Bcd5 Nd2 Bc6 Rac1 a1R Nb1 Q3g4 R1c2 Bcg2 Ra2 Qgf3 Rc1 Bf4 R5c3 Bg5+
q4r1q/1q2q2b/bQ1rBB1K/1r2R2b/n2N1R2/B1bP1N2/6k1/q1B1q2N w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 b5 f4 d5 f5 dxc4 f6 exf6 Nf3 f5 Kf2 f4 Ke1 Nc6 Ng1 Nd4 Qb3 axb4 Qd1 b3 Qc2 b4 Qd1 Nb5 axb5 Qd7 Bg2 Qd3 Bf1 Qd8 Kf2 Kd7 e4 Kd6 h4 Ke5 h5 f5 b6 c5 b7 g5 h6 f3 Kg3 f4+ Kh2 f2 h7 c3 Ra7 c4 Bh3 f1B Bg2 b2 Ra2 c2 Ra3 f3 Kg3 b3 Ne2 f2 Bh3 c3 Nf4 Be2 Ng2 f1R Ne3 Nf6 Ng2 Ra5 Ne1 Nd5 Ra1 Bg7 Bg2 Rf6 b8B+ Rd6 Rh2 Rf8 h8B Rb5 Bh1 Nb6 Bc7 Qe7 Ra7 Na4 Rh5 Ba6 Na3 b1B Rb7 Kd4 e5 b2 Nf3+ Ke4 e6 Bf6 Qg1 Bd1 Kg2 g3 Kh3 g2 Qb6 g1Q Bb8 Qh2+ Kg4 Be5 Bf6 Bd4 Rh4 Qg2+ Kh5+ g4+ Kh6 Be5 Rh2 g3 Rh5 Qh2 Rc7 g2 Rc4+ Bd4 Bc7 g1Q Bb8 Qhg2 Re5+ Kf4 Bc7 Kg3 Bb8 Qe1 d3 Ba2 Ba7 b1Q Rb4 Qb2 Rc4 Qb7 e7 Qge2 Rb4 Bg8 e8N Bh7 Ng7 Qa8 Nf5+ Kh3 Be3 c1Q Ng3 Qca1 Bc1 c2 Bb8 Bc3 Rf4 Qee4 Bc7 Be2 Bd8 Qeb7 Be7 Rb4 Nb5 Qba3 Na7 Rb5 Nc6 Q1b2 Ncd4 Qc5 Nh4 Bh5 Bd5 Kh2 Nhf3+ Kg2 Nh1 Qa1 Bd2 c1Q Be6 Qcb2 Bc1 Qcc7 Bd8 Qe7 Bc7 Rd7 Bd6 Rdd8 Ba3 Rd6 Bg4 Qb3 Bc8 Qg8 Be6 Qh8
3qR2N/1B1Rrb1N/4R3/3q3b/1N1kB1bK/1P1q1Q1q/r3r1b1/1Rb1r1n1 w - - 0 1 illegal: No possible last move, all moves rejected
2q4R/brN1nR1N/6b1/3Q1q1n/2b1n1R1/1PnR1p2/rk4Bq/n1NKB3 w - - 0 1 legal: proof: d4 c5 Bd2 cxd4 Qc1 e5 Qd1 b5 Bg5 b4 Bc1 b3 axb3 Bc5 Bd2 Ba3 Bc1 Bf8 f4 exf4 Nf3 a5 Ng1 a4 h4 g5 Kd2 gxh4 Ke1 a3 Ra2 axb2 Ra4 Ra7 Ra1 Ra8 c4 Ke7 e4 Kd6 g4 Kc5 e5 Kb4 e6 h5 c5 d5 g5 f5 g6 d3 g7 h3 c6 h4 e7 d2+ Ke2 h2 e8R d4 c7 d3+ Kf3 h3 Ra7 Be6 c8N Bc5 Qe2 d1N Ra6 d2 Rf8 Nf6 g8R Nc3 Nd6 d1N Qe4+ Bc4 Rg6 Nc6 Rg4 Ne7 Nf7 Ne3 Nd2 b1B Ne2 Ba7 Rg3 Rh7 Nh6 Nh5 Qd4 Qc8 Bg2 Nc2 Nf1 Na1 Rag6 Rg7 Be3 Ka3 Ng8 Kb2 Rf7 Bbd3 Kf2 f3 Ke1 f4 R6g4 Bg6 Nf6 f2+ Kd2 Rh7 Qd5 Rg7 Bb6 Rh7 Ne3 f1Q Ba5 f3 Rd4 Qb1 Nc1 Qbf5 Rd3 Rg7 Rg4 Rh7 Rg1 h1N Bb4 Nf2 Rh1 Rg7 Nh7 h2 Ba5 Nfe4+ Ke1 Bb8 Bb4 Ra2 Ba5 Nb5 Kd1 Ba7 Bd2 Bc5 Be1 Ba7 Rg1 h1Q Rf1 Qh4 Rh1 Qg3 Qc6 Bb8 Nd5 Ba7 Nf8 Nf4 Rf6 Ng8 Rh8 Nh5 Nh7 Rb7 Nc7 Qh2 Rf7 Ne7 Qd5 Nbc3+
1NR1B2B/3rN3/1r3p2/qb1rnrRr/2b2P2/1k3n2/N6N/1Bqq1QKn w - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 d5 h4 dxe4 a3 g5 Nf3 gxh4 Ke2 a5 Ng1 c3 Ke1 Bh6 Rh2 Bf4 Rh3 Bd6 Rh1 axb4 Nh3 b3 Ng1 Bb4 axb4 Qd5 Bc4 Qd7 Bf1 Qd8 g4 Kd7 d4 Kc6 f4 Kd5 Kf2 e5 g5 c5 g6 h5 b5 c2 b6 c4 g7 c3 b7 b2 Bb5 h3 Nf3 h4 Be3 c1R Bd2 h2 Re1 h1B Kg1 f6 Ba6 e3 Na3 b1R Re2 e4 Re1 c2 Bd3 h3 Bf1 e2 Nh4 h2+ Kf2 Ra7 Nb5 Kc4 d5 Bd7 d6 Qa5 Nf3 Kb3 Nc3 Ne7 Na2 Nbc6 b8N Nf5 Bb4 Rh5 g8B+ Be6 d7 Ne5 d8N Nd4 Be7 Bc4 Bf8 Rd7 Bh7 Rd5 Ndc6 e3+ Kg3 Bg2 Bg7 Bh3 Bg6 h1N+ Kh2 Bd7+ Kg1 Be8 Ne7 Beb5 Nh2 Ndf3+ Kg2 Rb2 Bh8 Rcb1 Qc1 Rf5 Rd1 e1R Bd3 e2 Be8 Rh5 Rd2 Rd1 Bdg6 Rd7 Rd5 e1Q Rc5 R1d6 Rc8 Rd5 Be4 Qd1 Bf5 Qd3 Qf1 Re1 Rd1 c1Q+ Rd2 Qdc2 Be4 Q2d1 Bb1 Nd3 Rc2 Ree5 Re2 Ref5 Rc2 Nfe5 Kg1 Ne1 Rg2 Rb7 Bd3 Rb6 Rg3 Rd2 Rg5 Rd7 Be4 R2d5 Bb1 N1f3+
2kBn2q/n5rN/r1B1bQN1/p1R1KB2/2Nrq3/R1b2P2/5b2/q1n2B1q w - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 b5 axb5 g5 Qf3 gxh4 Qc3 dxc3 Ke2 e5 Ke3 a5 b4 h5 g4 d5 g5 Kd7 g6 h3 g7 c2 b6 h2 f3 h4 c5 h3 b5 Nf6 g8B Bg7 b7 Nc6 b8Q Ra6 b6 Rh7 b7 Na7 Ra3 Ne8 Bd2 c1N Ne2 Qf6 Rg1 h1Q Rg5 h2 c6+ Kd8 Nf4 d4+ Kf2 e3+ Kg3 e2 c7+ Kd7 Bd5 d3 Ng6 e1Q+ Kg4 Qc6 Kf5 e4 Qa8 e3 b8N+ Kd6+ Kf4 e2 Nd7 Bc3 Nf6 Rg7 Nh7 Be6 c8B Kc7 Qb8+ Kd8 Qb2 Qb7 Be3 d2 Bc6 d1R Rc5 Rd4+ Ke5 Qh4 Bh6 e1B Nd2 Bf2 Nc4 Qg1 Bd2 h1Q Bg5+ Kc7 Bd8+ Kb8 Ng5 Qh8 Nh7 Qb4 Qd2 Qb1 Qf4 Qg4 B8d7 Qa1 Qf6 Qgh4 Be4 Qg4 Bdc6 Kc8 Bf5 Qe4+
2K1N1r1/1NR4b/1R1N1nP1/qNB5/1Rbp3q/qq4nQ/1r1nb3/1Bk3r1 w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 c4 d5 a4 f5 c5 h5 e3 h4 c6 f4 c7 d3 Kb6 g2 a5 b3 a6 b2 a7 f3 Qe2 g3 Ra3 d4 Ra6 h3 Ra1 d2 Qb5 d1B Bd2 h2 Ba5 f2 Ne2 g1Q Bd2 g2 Qc5 Kd3 e4 Nc6 e5 Rb8 a8R Na5 e6 Nb3 e7 Nf6 e8N Rg8 Nbc3 Kc2 Nc1 b1B Nd3 Be6 R8a7 Be2 R1a4 Bc4 Qf5 Qe7 c8N Qa3 Kc7 b5 Qd7 b4 Nc5 Rb5 Be1 Nd2 Qh3 b3 Ncd6 b2 Kc8 Kc1 Rc7 Bh7 g6 b1Q Ncb7 Rb2 Ncb5 Qbd3 Rb4 Qdb3 Nd8 Bh5 Bd3 f1N Be4 Ng3 Bb1 Be2 N8b7 Qge3 Rf1 g1R Rf5 h1Q Rfc5 Rg2 R5c6 Rg1 Ra6 Qg5 Rb6 Nf5 Bg3 Qh4 Bf4 Ng3 Bh6 Qd5 Bf8 Qa5 Ne4 Qba4 Bc5 Qa3 Ned6 Qdf3 Re7 Qfd3 Rc7 Qdb3
NR2N3/2n3n1/1K1BpP1B/4q1b1/1R1B3n/rq2B2b/k3rR1r/b2qb1Q1 w - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 b4 a6 g4 hxg4 b6 Nc6 b5 Nh6 b7 Nb8 b6 Ng8 Bb5 axb5 Kd2 Kf7 h4 Ke6 f4 Kd5 h5 Kc4 h6 g5 c3 d5 f5 d3 Ke3 d2 h7 b4 f6 g3 Ne2 g4 Ra4 d4+ Kf4 g2 Ke5 g1N Ra3 g3 Rh3 b3 Ra7 g2 Ng3 e3 Nh5 b2 Rh2 d3 Ng7 e2 Ne8 Na6 b8B e1B b7 Bh6 Bd6 Bh3 b8B e6 Rb7 Ne7 Ba7 Qc7 Bd4 Nf3+ Ke4 g1B Rf2 Nh4 Rb6 Rf8 h8B Nef5 Bg7 Bg5 Bh6 Ng7 Qg4 d1Q Bce3 Bh2 Qg1 d2 Rb7 Qc5 Rb6 Qb5 Na3+ Kb3 c4 b1R c5 Rh8 c6 Ka2 c7 Qdb3 c8R Be5 Nc4 Rb2 Rcb8 d1Q R6b7 Re2 Nb6 Ra7 Na8 Qa5 Rb4 Nc7 B4c5 Ba1 Bd4 Qc1 Bb2 Qf5+ Kd4 Ra3 Bc3 Qf4+ Kc5 Qcd1 Kb6 Qe5 Bcd4 Bg2 Rd8 Ng6 Rb8 Bf4 Bg5 Rh2 Bh4 Bh3 Bg5 Nh4 Bh6 Bg5
B1r1b3/1rQqp1r1/1N2Rr2/1bP1nn2/1qb2KnR/N2B1B2/2q5/k5NB w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Ba6 fxe6 Be2 e5 Bf1 e4 f4 Nc6 g4 Bh6 h4 Na7 f5 Nf6 Bf4 gxf4 g5 Nc6 g6 Bg5 hxg5 Nb8 Ke2 Ng8 Kd2 Qa5 Ke1 Qd8 Kf2 b5 c4 d5 a4 Kd7 a5 Kc6 f6 Kc5 f7 h5 f8N f3 Kg3 b3 a6 Kb4 c5 d3 a7 b2 g7 e3 g6 e2 Nd7 e1R Nf6 d4 Nd7 d2 Rh2 d3 Nb6 h4+ Kf4 h3 Nc3 b1R Ne4 f2 Qc1 Kb3 Kf3 d1N Qe3 Kb2 Qe2+ d2 Ra5 b4 Ra6 b3 Rh1 h2 Qe3 Nh6 g8B Nc6 g7 Nf5 Qf4 Rh7 Qd6 Bd7 Qe6 Nde3 Qc4 d1Q+ Ne2 Ne5+ Kf4 Bb5 Ng5 Qc2 Ne6 Qd7 Nc7 N3g4 Bd5 Rc8 g8B Rg7 a8B Rec1 Bfg2 f1B Ng1 Rd1 Qa4 Bfc4 Bgf3 Rf1 Bh7 Rf2 Qa5 Rff1 Na4+ Ka1 Re6 b2 Bdb7 Rfd1 Qa7 Rd6 Qb8 Rb6 Bbc6 Rb7 Nb6 Rf1 Bd5 b1Q Bg6 Ba6 Nb5 Qb4 Na3 Bab5 Qc7 Ng3 Bd3 Nf5 Bc6 Rf2 Nh3+ Rf1 Rg1 h1B Rg2 Rc1 Ng1 Rf1 Rh2 Rf2 Rh4 Bg2 Rf6 Bf1 Bce4 Bf7 Re6 Be8 Bc4 Bd3 Bcd5 Bdc4 Bd3 Rh2 Bh1 Rf2+ Bdf3 Nh2 Ke4 Nh6 Bh5 Rf6 B5f3 Nf5 Kf4 Nhg4
1B4rq/r2Q4/1KBN3q/3Rp2R/N2R4/1P1bR1r1/k2r3q/b2nqrBn w - - 0 1 legal: proof: d4 c5 Bd2 cxd4 Qc1 f5 Qd1 b5 Be3 b4 Bc1 b3 axb3 Qc7 Ra3 Qb6 Ra1 Qd8 h4 a5 e4 fxe4 h5 a4 h6 a3 Be3 axb2 Bf4 gxh6 Bg5 h5 Bc1 h4 Kd2 d5 g4 Kd7 f4 Kc6 c4 Kc5 g5 Kb4 f5 h5 g6 e3+ Kd3 e2 f6 e1Q c5 h3 g7 h2 f7 h4 c6 h3 c7 Nh6 g8R Nd7 Ra2 Nf6 Rg4 Bf5+ Re4 Rg8 c8R Nfg4 Ra1 Bg7 f8B Nf2+ Kc2 Nhg4 Rc7 Ra7 Qe2 Nd1 Ra5 Ngf2 Na3 b1R Bf4 Qd6 Qe3 Qh6 Nb5 Rb2+ Kc1 Rd2 Nd6 e6 Rac5 Ka3 Bg2 d3 Qd4 Ka2 Re3 Bh8 Qg7 d4 Ne2 Bh7 Qd7 Rg3 Rg1 h1Q Rd5 Qh2 Rc4 Nh1 Be4 Rg8 Rgg5 Bg7 Rh5 Bf6 Ng3 Rg2 Ne2 d2+ Kc2 R2g3 Kd3 Bg7 Rc7 Be5 Kc4 d3 Kc5 Ba1 Kb6 e5 Nc3+ Ka3 Bg2 Qe6 Rh4 Nhf2 Bh1 Nb2 Be4 d1R Rdc5 d2 Bg2 Qe2 Re4 Rf1 Rd4 d1R Be3 Rd2 Na4 Ka2 Ba8 Qf6 Rcd5 Qh8 Rc3 Qe1 Ne4 Qh1 Bc6 h2 Bd6 Nbd1 Bb8 Qg2 Rh3 h1Q Nd6 Bb1 Rhh4 Qhh3 Rh7 Nh1 Bg1 Qgh2 Re3 Bd3 Rhh4 Qe6 Rh5 Qeh6
q2qN2b/1N3r2/1nrb3p/1K1RR1r1/b2r1RnP/2N2NQ1/B3rB2/4bk2 w - - 0 1 legal: proof: e4 c5 g4 d5 a4 dxe4 b4 cxb4 a5 f5 Qe2 fxg4 Qf3 b5 axb6 axb6 Qd1 b5 Ke2 Kd7 f4 Ke6 h4 Kd5 d4 Kc4 c3 e5 d5 g5 d6 g3 f5 g4 f6 b3 f7 e3 d7 b4 Ra3 b2 Ra1 e4 Rh2 b3 Ra7 g2 Qd2 h6 Ra2 g3 Qd1 Ra6 Bd2 Rh7 Nf3 g1R Ra5 g2 Rh3 Nf6 Qc1 Ng4 Rb5 Bd6 f8N Rc6 Qe1 Rf7 Qg3 Ba6 Rg5 Bb5 Rd5 Ba4 Rh1 Nf6 Be1 Ng4 Kd1+ e2+ Kd2 Qc8 d8N Nd7 Nh7 Qa8 Nf6 Nb6 Nb7 Qd8 Bf2 Qa8 Rd3 e1R Ne8 Re2+ Kd1 e3 Rd5 Qd8 Re5 Kd3 c4 Qa8 Rh2 Rh1 c5 g1B Rh3 Bh2 Nc3 Rg1 Qg2 Bf4 Qg3 Bg5 Rh1 Bf6 Rh2 Bh8 Rh3 Rcc7 c6 Rcd7 c7 Qd8 c8R Rc7 Ne4 Rc6 Ra8 Rg2 Raa5 Rg1 Rac5 b1Q+ Rc1 Qb2 Rcc5 Qa3 Nc3 Qa2 Kc1 Qa3+ Kb1 b2 Rb5 Qb3 Rb4 Qd5 Rf4 Qe4 Ka2 b1R+ Nd2 Rb4 Ka3 Qd5 Nf3 Qa5 Rh1 Qaa8 Bh3 Rg2 Rb1 Rd4+ Rb4 Nh2 Be6 Ng4 Bd5 Re1 Ba2 e2 Rd5 Reg1 Rff5 e1B Rfe5 Rh2 Ne4 Ke2 Nc3+ Kf1 Ng5 Bc7 Nf3 Rhg2 Rc4 Rh2 Kb4 Bb8 Be3 Re2 Bf2 Bc2 Kb5 Bd6 Rb4 Rde4 Bc4 Nh2 Qf4 Rg5 Ba2 Ng4 Qg3 Bd1 Rb1 Ra4 Rb4 Bc2 Rbe4 Rd4 Rf4 Ba4+
4rN1N/b1p2N1R/5q2/1r1bnk2/n1QR1nq1/2b1R1n1/2P1n2R/KBB1b3 w - - 0 1 legal: proof: b4 b5 e4 h5 g4 hxg4 a4 d5 f3 dxe4 axb5 exf3 Nh3 a5 Ng1 axb4 h4 Kd7 d4 Ke6 Kd2 g5 b6 f5 h5 f4 h6 f2 h7 g3 b7 g2 d5+ Kf5 d6 e5 d7 f3 Ra6 b3 Kc3 e4 Kb2 g4 Ka1 b2+ Ka2 e3 Qd4 g3 Nd2 b1N Qc4 e2 Rh3 e1B Nb3 Bg7 Be3 Qh4 d8N Be6 Bc5 Nd7 b8R Ne5 Ra4 Ra5 Ba3 Bd5 Bc1 Rb5 Ka1 Nf6 Rh2 Qg4 Nc5 Nc3 Nd7 Re8 h8R Nh5 Nf8 Nf4 Ne2 g1B Nf7 g2 R8h7 Bf6 Ra3 Na4 Rd8 Bg7 Re3 Bh8 Nc3 Bg7 Be2 f1N Nh8 f2 Ne4 Ng3 Ng5 f1Q Ngf7 Bgf2 Bf3 g1N Bg2 N1e2 Bh1 Bb7 Rd4 Bg1 Bd5 Qf2 Qc5 Ba8 Ba2 Bd5 Qc4 Qf1 Rb3 Be3 Bb1 Qf2 Re4 Ba7 Rd3 Qb6 Ree3 Qf6 Nd7 Bf8 Rd4 Bfb4 Nf8 Bbc3+
bQ2b2r/2n3K1/rb3N1n/2r2q2/1r1N3q/1RP2BNB/p2k1Nn1/R3b1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 e4 d5 b4 f5 b6 f4 b7 d3 h3 d2 b5 a4 b6 f3 Nc3 d4 Bg2 f2 Bf1 d3 Nb5 a3 Qe2 d1B Nc7 d2 Qb5 g2 Na6 a2 Be2 f1Q Nc7 g3 Bf3 Bb4 Ne2 g1B Ne8 g2 Ng3 Ra6 Nf6 Nh6 Ng4 Bd7 Nf2 Be8 h4+ Kg6 h5+ Kg5 Ke6+ Kf4 e5 g5 Rh3 Qd4 Kf6 Ke3 Kg7 Qh4 e6 g4 e7 Be2 Rh1 d1N Qe5+ Kd2 c3 Bc5 Qc7 Ne3 Qf4 Bh2 Rg1 Qb1 Qb4 Qf5 Qb3 B2b5 Qb1 Bec6 e8B Be4 Bf7 Be8 Be6 B4c6 Rc1 g1R Bc8 Rh1 Rg1 Ng2 Qb5 Nd7 b8N Nf8 b7 Bb6 Nd7 Bd5 b8N Ba8 Rgf1 Bg1 Nc6 Rh3 Nd4 Bh2 Ngh1 Bg3 Nf6 Rh2 Rg1 Rh3 Nd1 Be1 Ndf2 g3 Qe5 Ne3 Be6 g2 Qb8 Rh2 Ng3 Rh3 Rh1 g1R Bc8 Rf1 Rg1 Ng2 Bd7 Ng6 Be6 Ne7 Bd7 Nd5 Be6 Nf7 h6 Nc7 h7 Nh6 Bc8 Bh5 Bd7 Rc8 h8R Be8 Nd3 Rf2 Rh7 Re2 Nf2 Re5 Rh8 Rb5 Rf8 Rb4 Rg8 Qb1 Bdg4 Rh1 Bh3 Qf5 Rf8 Nb5 Rf7 Rc5 Rb7 Nc7 Ra7 Qhe4 Nb5 Ra3 Bhg4 Nf7 Nd4 Rh8 Bh3 Qh4 Ra5 Nh6 Rb5 Rbc4 Rbb1 Ra6 Rb3 Rb4
n4q2/3R1Br1/b2b3P/1p2n3/1Rqr2qN/nRB1Bn1k/1R2Qrq1/1N1K4 w - - 0 1 legal: proof: g4 e5 f4 exf4 c4 h5 b4 hxg4 a4 d5 cxd5 a6 b5 axb5 Ra2 bxa4 Ra1 a3 e4 Kd7 d4 g5 h4 b5 e5 c5 h5 f5 d6 Ke6 d7 a2 h6 g3 Bd2 c4 Qg4 f3 Rh3 g2 Rg3 f2+ Ke2 c3 Be3 c2 Nf3 g1Q Na3 c1Q Qf4 g4 Bh3 f1R Nh2 Bd6 Bg2 Ba6 Qg5 f4 Qg6+ Nf6 Qh7 f3+ Kd3 f2 Ke2 Qc4+ Qd3 Nd5 Rb1 a1N Rb2 Nc6 Nf3 Rh7 Nb1 Nc2 Nh4 Qf8 d8B Nb6 Bf6 Rd8 Bh3 Na3 d5+ Kd7 Bh8 Rg7 e6+ Ke7 Rb4 Kf6 e7 Na8 e8R Ne5 Rg2 g3 Be6 Rd7 Bf7 Rd8 Rh2 g2 Kd2 Qg4 Qe2 Qh1 Re7 g1N Rd7 Qhg2 Rh3 Qf4 Rf3 Kg5 Rb2 Kg4 Rb4 Be7 d6 Qc4 Rb2 Qa4 Rf4+ Kh3 Rfb4 Qg4 R4b3 Qac4 Rb4 Rc1 R2b3 Rc2+ Kd1 Ngf3 Rb2 Ne1 R4b3 f1Q Rb4 Qfg2 R2b3 Rg6 Bg7 N1f3 Bf6 Nd3 Bc3 Nde5 Rc7 Nb6 Qf2 Qc8 d7 Rg7 Qf1 Rf2 Qe2 Qcg4 Rb7 Qcc4 Ra7 Rc8 d8R Na8 Rd2 Rd8 Rb7 Rd4 Rd7 Rf4 Ra2 Bd6 Rab2 Rd4+
NRnNb1q1/r3B1r1/3PpKQ1/1rN1n3/b1q5/3n1R2/3rB1N1/qk1Bq3 w - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 h4 f5 c4 dxc4 g5 fxe4 f4 g6 f5 gxf5 g6 f4 Rh2 Bh6 Rh1 Bg5 hxg5 Qd5 Ne2 Qd4 Ng1 Qd8 Ke2 Kd7 a4 Kc6 d4 Kd5 g7 h5 a5 b5 g6 c5 a6 b3 a7 h4 Ra6 b4 Rh2 h3 Kf2 b2 Ne2 c3 Be3 Kc4 d5 b3 d6 c2 Ra1 c1N Rg2 f3 Kg3 h2 Kf4 h1B Ke5 e6 Bh6 e3 Qd2 f2 Ng1+ e2 Be3 Rh7 Rg5 Nd7+ Kf4 Ne7 g8B Ne5 g7 Bc6 Nh3 Ba4 Ra3 Bcd7 Nc3 b1Q Qc2 b2 Qg6 Qa1 Bf7 b1R g8N Be8 Ne4 Rg7 Nh6 Nc8 Rb3 Rb2 Rg3 Rd2 Rb8 Kd3 Rf3 c4 Nc5+ Kc3 Ke4 Kc2 Bg5 e1Q+ Be2 f1R Nf4 c3 Be7 Ncd3 Ng2 Rh1 Kd4 Rh5 Bd1+ Kc1 Be2 c2+ Ke4 Bed7 Be8 Bdb5 Nf7 Kb1 Bc6 Qe8 Nd8 c1Q Bd5 Qg8 Bb3 Be8 Bd1+ Rb2 Na6 Qc7 Nc5 Rh2 Kd4 Rb5+ Ke4 Nb4 Kf4+ Nbd3+ Kg5 Qc6 Kf6 Qd5 Rb6 Qc4 Rb7 Rb8 Rb6 Rb7 a8N Ra7 Rb8 Rh1 Rb7 Rf1 Rb8 Rf2 Bf1 Rc2 Bfe2 Rd2
1Rrr2q1/2k2NpB/1b2BRQn/7n/2nq1r1P/3R2K1/b1r3N1/2b2BnB w - - 0 1 illegal: No possible last move
1b4r1/3PQB2/b1NRqN1B/1q2R1p1/k2K3B/3r2B1/rnR1bn2/rn4n1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 e5 c5 exf4 c6 axb4 axb5 dxc6 Ra4 c5 Ra1 c4 Kf2 Kd7 e4 g5 d4 f5 h4 c5 e5 b3 b6 Kc6 e6 Kb5 e7 g3+ Ke2 b2 e8R f3+ Ke3 f4+ Ke4 g2 b7 f2 d5 f3 h5 Qf6 d6 Ra2 h6 Nc6 b8B Nb4 h7 Ba6 d7 Nh6 Qe2 Rg8 h8B Ng4 Rh5 Qe6+ Bbe5 Bd6 Qe1 Ka4 Ne2 g1N Bd2 c3 Rh6 c4 Bg7 c2 Kd4 c1R Bg3 c3 Rg6 c2 Bh6 Bb8 Nbc3+ Ka3 Rf6 b1N Ne4 Rd1 Rg6 c1R Nf6 Rc3 Bh4 Rdc1 Bf4 Nd3 Bfg3 Ka4 Rc8 Rca3 Rc2 Nb2 Bh3 f1Q Bg2 f2 Bd5 Qh3 Bc4 f1B Bd5 Qc6 Bf7 Nc3 Rb1 Nf2 Ra1 Qhe6 Rb1 Nbd3 Rb5 Rca1 Re5 Qb7 Nc1 Nb2 Nb3 Bae2 Na5 Nb1 Nc6 Qb5 Nh5 Qe8 Rd6 Qe6 Nf6 Bg2 Ne7 Bb7 Nc6 Bc8 Qc1 Ba6 Qe3 Rb3 Qe4 Rf3 Qh7 Rfa3 Qg7 Rc3 Qf8 Rf3 Qe7 Rd3#
B3bqrb/1p3rRb/1Q3rrb/Kn2R1N1/2N3n1/q2q4/P6k/B2NN1R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Kf2 f5 Bg4 fxg4 Ke1 g3 Kd2 Ke7 h4 Ke6 c4 Kf5 e4+ Kf4 e5 d5 h5 f5 h6 g5 c5 d3 Kc3+ d2 Kb4 g4 a6 d4 h7 d3 e6 Nf6 a7 Rg8 h8N Na6+ Ka4 Bd7+ c6 Bh6 e7 Nc7 e8R Nb5 Re2 Be8 Nf3 g1B c7 g2 c8N Kg3 Kb4 f4 Ba3 Bd4 Ne1 g1Q Bb2 f3 Reh2 f2 Ba3 f1R Qc1 d1B Bb2 d2 Qc6 Bc2 Rh4 d1Q Nb6 Qe3 Ka5 Bh7 Rh5 Qdd3 Re5 Rf2 Rg1+ Kh2 Bc3 g3 Nf7 g2 Ng5 Ng4 Qd6 Rc8 a8B Rc7 Nc4 Rcf7+ Qb6 R2f6 Bb2 Qd6 Nc3 Qf8 Nd1 Rgg6 Rb1 Qf3 Ba1 Bb2 Rf1 g1R Rc1 Rg2 Rg1 Bd4 Rb1 Qg3 Rb4 Qa3+ Ra4 Qgd3 Ne6 Rg8 Re2 Nf2 Nd2 Rf3 Re4 Bh8 Re5 Qad6 Rg4 R3f6 Rg7 Rgg6 Ng5 Ng4 Nc4 Q6a3+
1brRrQ2/BK1N1B2/5n2/1BNb2NR/B1r2kbp/n6q/rr2P3/5rb1 w - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Qb3 gxh4 Qc3 b5 axb5 dxc3 Kf2 h3 Kf3 Ke7 Ke4 Ke6 g4 f5+ Kd4 h5 b4 d5 c5 a5 g5 a4 c6 a3 b6 h2 g6 a2 b5 h4 b7 f3 g7 f4 c7 Kf5 b6 c2 Bb2 c1R Nd2 f2 Ba3 f3 Ne4 Nc6+ Kd3 d4 b8Q Bc5 b7 Nf6 g8B Ne5+ Kd2 d3 Nh3 Qd7 Bg2 f1B Bf7 f2 Rb1 a1B Rb5 Ra4 Bf3 Bg2 Rd1 h1R Ra5 Rd4 Ke3 d2 Bb4 Bd6 Bc5 Ra4 Rb5 Ra2 Ba7 Re1 Qa8 f1R b8N Rc5 Ra5 Nc4+ Kd3 Bae5 Rb5 Bf4 Kd4 Na3 Ra5 Qe6 Rb5 Bd7 c8B Bh2 Ba6 Re5 Rd5 Rg8 Nc5 Bg1+ Kc3 Rd8 Kb4 Rh8 Ka5 Bc8 Ng5 Kf4 Kb6 Qh3 Nh7 Bg4 Kb7 Re3 Rh5 Rf8 Rc1 d1R Ng5 Rd4 Bc6 Rc4 Rd1 Bc7 Rd7 Bd5 Rd6 Rec1 Rd7 R1c2 Rd6 Bde6 Ba4 Rcb2+ B6b5 Rh8 Rc6 Bd6 Rc8 Rd8 Nbd7 Bd5+ Ka6 Re7 Qb8 Be5 Qd6 Ree8 Qf8 Bd6 Ra8 Rc8 Rb8 Rc7 Rd8 Rc8 Kb6 Bb8 Ka6 Rc6+ Kb7 Rc8+
4Rr1b/BR3p2/2N2bN1/NQ1Rn2K/1nP4B/2N4k/1b3rn1/qbn2n1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 e4 Ke7 Ke2 Ke6 Kf3 d5 Kg4 a5 c4 g5 b4 d3 h4 d2 e5 d4 h5 a4 h6 d3 h7 a3 b6 a2 b7 Na6 b8B Nf6+ Kf3 Kf5 e6 g4+ Ke3 Nd7 e7 Qa5 e8N Ne5 b5 Nb4 b6 Be7 b7 Bf6 Qb3 d1N+ Kd2 Rf8 h8N Ne3 Ba3 Nf1+ Ke1 d2+ Ke2 d1N Ng6 Nf2 Rh3 Nh1 Nf3 g1N+ Ke1 g2 Nc3 g3 Rb1 Kg4 Rh5 a1B Nd6 Ne2 Ba7 g1N b8R g2 Nb7 Nh3 Nd4 g1B Nc6 Bf5 Re8 Bd4 Kd1 Qa6 Nba5 Nc1 Qa4 Bd3 Qb5 Nf4 Rg5+ Kh3 Rf5 Nd7 Rd5 Ne5 Rb3 Bb1 Ke1 Nba2 Be7 Nb4 Kd1 Bh8 Bh4 Bb2 Ke1 Ng2+ Kd1 Ncd3 Ke2 Bf6 Nb7 Qa1 Nba5 Nd7 Kf3 N7e5+ Ke4 Bh8 Kf5 Nc1+ Kg5 Rd8 Kh6 Rd6 Kg5 Rf6 Kh5 Rf2 Qc5 Nc2 Rb7 Nb4 Qb6 Nf3 Qc5 Bdf6 Qb5 Ne5
2b2q2/3B1B2/1bb3b1/r6k/r2RBbNn/N1p2Q2/2RbPbK1/1r1qN1B1 w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 a5 b4 axb4 f5 e6 Qb3 exf5 Qd1 Nc6 Ba3 Nd4 Bc1 Ne6 Nc3 fxg4 Nb1 g3 Bh3 g4 Bf1 Ng5 hxg5 Qe7 Na3 Qf6 Nb1 Qd8 a4 c5 d4 b5 d5 h5 g6 f5 a5 h4 g7 Kf7 d6 Kg6 d7 f4 a6 b3 a7 g2 Kf2 h3 Bb2 b4 Ra5 f3 Rh2 g3+ Ke1 f2+ Kd2 c3+ Ke3 c4 Kf3 c2 Bc3 c1B Ra3 b2 Qd6+ Kh5 Ra2 b3 Qa6 Bf4 Qb6 Bb4 Nd2 b1B Rc2 b2 Qe3 Nh6 g8B Qf8 d8N Nf5 Bd4 Ba5 Rh1 h2 Nf7 c3 Ne5 Bb6 Be6 Rg8 Qd3 Rg5 Ndc4 Bd2 Ng4 Bc7 Rc1 Bcf4 Na3 Bc2 Qe3 Bd3 Rc2 b1R Nh3 g1B Kg2 Be4+ Qf3 Bc6 Bb3 Be8 Bc4 Bg6 Bb6 Ne7 Ba2 Ra5 Ng5 Nf5 Bf7 Ra4 Qb7 Ra5 Nf3 Ra4 Ne1 Ra5 Kf3 Ra4 Bh3 g2 Qe4 f1B Be3 Bf2 Qd5 g1B Bd4 Rab8 a8B R8b5 Bc6 Rc5 Bd7 Rcb5 Bg2 Rba5 Ba7 Bb6 Qe4 Bgc5 Qe3 Bd4 Kf2 Bdc5 Be4 Bg2 Rg1 h1Q Rf1 Qh4+ Kg1 Bh1 Rf2 Qf6 Qf3 Q6d6 Kf1 Bd8 Rg2 Bf2 Bc5 Bb6 Be3 B2g3 Bg1 Bgf2 Rg3 Bc1 Rg2 Qd1 Rg3 Bcd2 Rh3+ Kg5 Rh4 Qh6 Bd3 Bfd4 Qa8 Qf8 Nh2 Bfe5 Rf4 Bhb7 Ng4 Bf2 Rd4 Bh1 Qe4 Kh5 Qf4 Ba8 Qf3 Bc6 Kg2 Bef4 Be4 Nh4+
1q2qnNq/2R5/K3b1nR/1Q1p3R/q1r5/1B1RBn1b/4qb1P/qk2N1B1 w - - 0 1 illegal: No possible last move, all moves rejected
n1qq1qqb/2r1RR1r/2k4r/P1N2Q2/n7/KnR1p1r1/1R3N1B/2q2BN1 w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 d4 fxe4 f4 c5 Na3 cxd4 Nb1 b6 f5 Ba6 f6 gxf6 h3 Be2 g5 Bg4 hxg4 f5 Rh4 f4 Rh5 Ra7 Rh1 Ra8 Kd2 e5 a4 d5 c4 Kd7 Kc2 h5 Kb3 e3 a5 b5 c5 d3 g6 d4 g7 h4 g5 f3 g6 h3 Qd2 h2 Be2 f2 Bg4+ Kc6 Bh5 f1Q Ra4 e4 Qb2 d2 Be2 d1N Bd3 e2 Qa1 e1Q Nd2 e3 Be2 d3 Ba3 Rh6 Qe5 Qg3 Ndf3 d2 Bc1 Ra7 Bb2 Na6 Ng5 Rc7 Ra1 Nc3 Bg4 d1R Rc1 Na4 Rc2 Ne7 g8R Bg7 Be2 Bh8 g7 Nf5 Ne6 Nd4+ Ka2 b3+ Ka3 Qff4 Re8 Qf8 g8N Re1 Nf6 Qgg8 Bc3 b2 Ng4 b1Q Nf2 Nb3 Re7 Qc1+ Rb2 Rh7 Qf5 b4+ Ka2 Rd1 Bf1 Rd4 Rf7 Rg4 Be5 Rg3 Bf4 Rd7 Re7 Nc7 Be5 Na8 Rf7 Kd5 c6 Rc7 Nc5 Qc4 Rg7 Qa6 Re7 Qac8 Rf7 Re7 c7 Kc6 Nf3 Rd7 Rg1 h1R Bf4 Qa6 c8R+ Rc7 Rg2 R1h6 Ng1 Nd4 Rh2 b3+ Ka3 Qc4 Rh5 Qc3 Rg5 Qc1 Rgg7 Qc2 Ra2 b2 Bd6 b1Q Rb2 Qc4 Re7 Nb3 Rgf7 Qbc1 Bf4 Rf3 Bh2 Rg3 Rb8 Nd2 Rb3 Q4c2 Rc3 Nb3 Qe5 Qf5 Qf6+ Qe6 Qf5 Qec8
1BQKRb1N/2n3Nn/b2b2qR/7n/1P6/nb4rB/qBNpqBq1/3k4 w - - 0 1 legal: proof: f4 a5 b4 b5 d4 c5 a4 bxa4 g4 cxd4 Nh3 e5 Ng1 exf4 c3 h5 c4 hxg4 Na3 Rh5 Nb1 Rb5 cxb5 Ra6 Nd2 Rh6 Nb1 Rh8 Kd2 Ke7 Kd3 Kd6 Ke4 g5 Kf5 Kd5 h4 Kc4 e4+ d3 h5 d5+ Ke5 f5 h6 d4 b6 g3 b7 a3 h7 f3 Qd2 Kb3 Qe1 Kc2 Ne2 g4 Nbc3 f2 Nf4 a2 Ba3 g2 Nb1 g1B Nh5 f4 Bh3 f1N Nc3 f3 Qg3 a4 Qe1 g3 Qe3 g2 Rd1 a1N Qe1 f2 Nf4 Na6 b8B Qg5+ Bf5 Bh2 Bd6 g1Q Bb2 a3 Kd5 a2 Kc6 Ng3 e5 f1Q e6 Qgg2+ Ncd5 Nf6 e7 Rg8 h8B Nh7 e8N Rg7 Bg4 d2 Ng6 Qh6 Rb1 d1B Bb8 d3 Qe6 d2 Bd4 Rg8 Bf2 Nc7 Bb2 Ba6 Nh8 Rg5 Kd7 Qg6 Ng7 Qfd3 Bf6 Qe3 Rb3 Qe2 Re3 Kc1 Re4 Nc2 Kd8 a1Q Qc8 Na3 Re8 Qa2 Bc3 Kc2 Ne3+ Kc1 Be1 Bb3 Nc2 Kd1 Bb2 Bg1 Rh6 Bh2 Bh3 Nh5 Bh4 Bhd6 Bf2 Rg3
N3r2Q/1b1r3n/r2PBBRB/b1p3R1/nbb1N3/n4Kn1/k1r5/BN4r1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 b5 f4 d5 f5 dxc4 f6 exf6 Nf3 f5 Kf2 f4 Ke1 Qd7 Ng1 axb4 Bb2 b3 Ba3 b4 Bc1 Qb5 axb5 Bd7 Bh3 Be6 Bf1 Bc8 Kf2 Kd7 d4 Ke6 h4 Kd5 b6 f5 e3 g5 h5 g3+ Kf3 g4+ Kg2 b2 b7 b3 h6 c3 h7 c2 Rh2 f3+ Kh1 f4 Qd3 f2 Kg2 f3+ Kh1 Nf6 Nh3 Ra6 Bg2 f1N Ng5 Nbd7 b8B Nc5 Rh5 Bb7 Rh3 Na4 Bd2 c1R Qc3 Bb4 Rh6 Re8 h8B Rc2 Ne4 f2 Bh3 Nh7 Kg2 c6 Rg6 c5 Na3 b1R Bbe5 b2 Bhf6 Rd1 Rg5 b1N Bc1 Nbd2 Nb1 Nc4 Ra2 Na3 Rb2 Ba5 Rb6 Rd3 Qa1 Kc4 d5 Rd1 Re6 Kb3 d6 Re1 Bh8 Re7 Reg6 Rd7 Qd4 Ka2 Bef6 Rd1 Qc3 Rd5 Bhg7 Re5 Bh6 Re8 Bb2 Nh2 Ba1 f1B+ Kg1 Be2 Kg2 Nf1 Qe5 Red8 Qe8 Bb4 Qh8 Re8 Kg1 g2 Kf2 g1B+ Kg2 g3 Be6+ Bc4+ Kf3 Bc8 Nec3+ Kb3 e4 g2 e5 Bd4 Ne4 g1R Bg4 Nf8 e6 Bb7 e7 Ka2 Bh3 Bdc3 Be6 Rea8 e8N Nh7 Nc7 Re8 Na8 Ng3 Rg4 Ba5 R4g5 Bcb4
R1B1N2r/4P1rr/6n1/2rpKBQn/2bR1nb1/2NRR1nB/5k2/5bbb w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 f5 Rb1 h6 Ra1 Qf6 Bg5 f4 Nb1 Qf5 gxf5 hxg5 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kd3 Ke5 c4 b5 e4 f2 h4 b3 a4 b4 h5 b2 f6 g4 h6 g5 h7 g3 a5 f3 c5 Kf4 c6 g2 a6 Kg3 a7 b3 e5 g4 c7 Ba6+ Kd2 d3 Kc3 d2 Kd4 Nd7 c8B Ne7 e6 Ng6 f7 Bc4 Ra2 Nf6 Rh2 Nh5 Qc2 d1B Na3 b1B Rh4 b2 Qd2 Be4 Qg5 b1R Re2 Rb5 Re3 Rc5 Nb5 Bh6 Bd3 f1N f8R Kf2 e7 g3 Ne2 g1R Bh3 g2 Nd6 Nfg3 Nc3 Rh1 Rd8 g1N Ne8 Rg8 h8R Rg7 Rf8 Rac8 a8B Rb8 Bg4 Nh3 Bb7 N3f4 Bh3 Kg1 Qf5 f2 Nd6 f1B Bg2 Nh3 Rf3 Bc1 Qg5 Nf6 Rhf4 Nh4 Ke5 Be3 Ba6 Ra8 Rb8 Bde2 Rb2 Bf2 Re3 Bg4 Rd2 Bef3 Rd4 Nf4 Bf5 Rb8 Rf7 Rh8 Rf8 Rh2 Ra8 Rh3 Ne8 Nhg6+ Kd6 R3h7 Bac8 N6h5 Bh3 Bh1 R2d3 Bfg2 Ba6 Kf1 Bac8 Bg1 Ree4 Kf2 Ree3 Nf8 Ke5 Bf1 Ra1 Bb5 Ra5 Bc4 Ra8 N8g6+
q1rN3N/2B4p/1QnNR1RP/B2k1pn1/3N2qr/1b6/n1rb2q1/4RbK1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 f5 b5 axb5 e4 e3 g6 Bc4 gxf5 Be2 f4 Bf3 exf3 Kf2 Ke7 h4 Kd6 g4 a5 b4 f5 c4 a4 e4 d3 g5 d2 h5 a3 g6 a2 e5+ Ke6 b6 d5 h6 d4 b5 d3 g7 Bd6 b7 Qb6+ c5 Ra4 Qb3+ Rc4 Nh3 d1Q Rg1 d2 Ng5+ Kd5 e6 Qa6 c6 Bd7 e7 Bc8 e8R Bb4 c7 Be6 c8N Nf6 g8Q Nc6 b8N Qa8 b6 Bc3 Re1 Ne4+ Kg1 Qe2 b7 d1Q Qb6 Bd2 Nd6 Rc2 Ngf7 Ng5 Na3 f2+ Kh1 f1B Nab5 f3 Nd4 f2 Rb1 Ne7 Nbc6 a1N b8B Nb3 Ncd8 Nc6 Bc7 Qg4 Ba3 Qde2 Bb4 Nc1 Ba5 Na2 Qg6 Rf8 Nh8 Bg8 Re6 Re8 N8b7 Rc8 Qg7 Bh3 Rg1 f1R Re1 Rf4 Nd8 Bf1 Rg2 Qg3 Kg1 Rh4 Qg6 Qh3 Qh5 Qhf3 Qg4 Qfe4 Qh3 Q4g4 Rg3 Bf7 Qg2+ Ne4 Rd1 Qf4 N6b7 Kc4 Rgg6 Ng5 Re1 Qfg4 Re7 Bg8 Qb2 Bd5 Nd6+ Kc5 Qb7 Bb3 Re4 Kd5 Qb6 Qd1 Re8+ Qdf3 R8e4 Qe2 Ree6+ Qexg2#
3q1Q2/3q1n1N/2Nr1Rr1/2r1b1n1/1Kbp1N1p/rR1R3P/B1r4R/1bB1k3 w - - 0 1 legal: proof: d4 c5 b4 cxb4 a4 e5 g4 exd4 a5 f5 Qd2 fxg4 Qd3 b5 axb6 axb6 Qd1 b5 Kd2 Ke7 e4 Kf6 c4 Ke5 f3 Kf4 e5 d5 h3 Kg3 f4 Kf2 c5 h5 e6 g5 e7 d3 e8N b3 Kc3 b4+ Kd2 b2 f5 h4 f6 g3 f7 b3 Kc3 g4 c6 d2 c7 g2 Ne2 g1R Ra3 g3 Ra4 g2 Nd6 Nf6 Rc4 Ba6 c8R Nbd7 Nf4 Ne5 Qh5 d1Q Qf5 Rh5 Re4 Nh7 Re3 Ng5 Ne8 Bg7 f8R Nef7+ Qf6 Bc4 Kb4 Ra3 Nc3 b1B Na2 b2 Rb3 Ke1 Rh2 d4 Rb8 Qg4 Rd3 Qgd7 Qd6 Be5 Nf6 Rh1 Nh7 g1R Bg2 Rh6 Bd5 Rg6 Qc5 Rg2 Qc8 Rc2 Be6 Nh8 Rf6 Nhf7 Qc5 Rf1 Qf8 Rf3 Kc5 Ra6 Nb4 Rd6 Nc6 Rg3 Kb4 Rf3 Rdd2 Ra3 Rb7 Bba2 Rd3 b1R+ Kc5 Ra1 Rbb3 Bb1 Kb4 Ra5 Rf3 R1a3 Rbd3 Ba6 Ba2 Bc4 Rb3 Rad5 Rfd3 Rc5
K3B1rr/1np3RB/Q4qrN/R1N1n1kP/8/6b1/2b3pr/RN1brRq1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 h5 b3 hxg4 f5 e6 Ba3 exf5 Be7 b6 a4 b5 Bh4 f4 Bg3 fxg3 axb5 Qg5 Ra2 Qf6 Ra1 Qd8 d4 Ke7 Kd2 Kf6 Kc3 a5 e4 g5 h4 a4 h5 g2 b6 a3 d5 g3 Kd4 c3 d6 c2 Kc5 c1R+ Qc2 g4 b7 a2 e5+ Kg5 b4 f5 e6 f4 e7 f3 e8B f2 b5 Re1 b6 Nc6 b8R Qf6 b7 Nh6 Qd3 Nf5 Ne2 g1Q Nd4 g2 Qa6 g3 Bd3 Ne5 Nb3 f1B+ Kd5 Bh6 d7 Be2 d8N Bd1 Nc5 Nd6 Bh7 Bf5 Rc8 Bfc2 b8R Bg7 Rb5 Nb7 Ra5 Bf8 Rb8 Bd6 Rc8 Qe3 Rf1 g1R Rb8 g2 Rc8 Rh1 Rb8 Rh2 Nf7+ Kh4 Rc8 Qg1 Nh6 Kg5 Rd8 Rg8 Rd7 Rg6 Rg7 Rc8 Bd7 Rh8 Be8 Nd7 Kc6 Bg3+ Kb5 Ne5 Qd6 Re2 Ka6 Re1 Ka7 Rg8 Ka8 Rh8 Na3 Rg8 Qa6 Rh8 Rc1 a1R Nb1 Ra4 Nd2 Rd4 Rca1 Rd7 Nb1 Rf7 R5a2 Rff8 Ra5 Rfg8
5B1k/R1nBQrr1/1b1n4/r1n3qp/2b1N1Rq/1PB5/3N2qp/1BKnN3 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 e4 f5 g4 Kf7 e5 Kg7 g5 a5 b6 h5 b7 d5 e6 f3 e7 d4 e8B h3 g6 f4 Ra4 c2 Kd2 d3 Rh2 f2 Rg2 f3 Rd4 a4 Qe2 h2 Qe1 a3 Qe4 a2 Qe1 a1N Ba4 Ra5 Rb4 Nf6 Rgg4 Rh7 Bg2 f1R Qe5 f2 Bd7 Kh8 Nf3 Bc5 Ra4 Rg7 Ne1 Ne8 Be4 Qh4 Qe7 Na6 b8B Bb6 Be5 Nac7 Bc3 Ba6 Ra3 Bc4 Ra2 Re5 Ra7 Nd6 Bef5 Rg1 Be4 f1Q Bef5 Rf7 g7+ Kg8 Be4 Ra5 Bg6 Qff6 Be4 Qg6 Bef5 Kh7 g8N Rg3 Nf6+ Kh8 Rf4 Qg8 Ne4+ Rgg7 Rg4 Rc5 Ke3 d2 Bh7 d1N+ Kd2 Ra5 b3 Qa8 Ba3 Qb7 Nd3 c1Q+ Ke2 Qa8 Nbd2 Nc2 Bhf5 Nb4 Bg6 Be6 Ne1 Nba6 Bh7 Qd5 Bc5 Qdg5 Kd3 Qa3 Kc2 Qa2+ Kc1 Bc4 Qf6 Qh3 Ng3 Nb7 Bb1 Qg2 Ne4 Qh3 Bf8 Qhh4 Qd6 Nac5 Qe7 Qf6 Nf1 Qg2 Nfd2 Nd6 Qe5 Qh6 Qe7 Q6g5
1K1qQ1N1/1nn1b1nq/R5Br/1b4P1/RNn5/B2N2R1/bq3rpp/N5k1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 g4 b5 axb5 g5 f4 gxh4 Qd3 exf4 Qg3 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 h5 b4 a5 c3 d5+ Kb3 f5 Ka4 g2 g5 f4 c4 d3 b6 Kd4 Kb5 a4 b7 a3 e5 f3 e6 h3 c5 a2 c6 f2 e7 h2 e8N d2 c7 Ke3 Kb6 h4 b5 d4 Ba3 d1N Bd3 f1B Nc3 Kf2 Nf3 h3 Bg6 d3 Rc1 a1N Nb1 d2 Rc5 Na6 b8Q Nf6 Rc6 Be6 Kb7 Ba2 c8R Nh5 b6 Nb3 Ne5 Bb5 Nf6 Be7 Ng8 Ng7 Rd6 Rh7 Rc3 Nb2 Rg3 d1Q Nd2 Qc2 Ra1 h1Q Rd4 h2 Ra4 Qhb1 Nd3+ Kg1 Qc8 Qc3 Qc6 Rh8 Qe8 Nc7 Ra6 Rh6 Ra4 Nc1 Nb3 Nc4 Ra6 Rb8+ Ka7 Qe5 b7 Qeb2 Ra4 Rc8 b8N Q1c2 Na6 Rb8 Ne1 Nd3 Nb4 Nc5 Ned3+ Qcb1 Ra6 Rb6 Ra4 Rf6 Ra6 Nb7 Ra4 Qd7 Kb8 Qd1 Rc1 Rf5 Na1 Rf2 Rc2 Qf5 Re2 Qh3 Re6 Qh4 Rea6 Qe4 Bh5 Qh7 Bg6 Qdd2 Ne5 Qd5 Ned3 Qd8+
R3q1q1/2r2br1/p1QR2n1/3BBkbr/B1b5/3pn3/P1RBN1r1/3q1N1K w - - 0 1 legal: proof: c4 b5 e4 f5 b4 fxe4 d4 e5 h4 exd4 Rh2 g5 Rh1 c5 bxc5 gxh4 Qd3 bxc4 Qd2 Qg5 Qd1 Qd8 g4 Ke7 f4 Kf6 Kf2 d5 Kg2 h5 g5+ Kf5 g6 e3 c6 a6 c7 e2 g7 e1Q Qc2+ d3 Ba3 c3 Bb4 h3+ Kh2 d4 Qb2 d2 Be2 d1Q Bf1 h4 Qd2 d3 Qe2 c2 Qf2 c1R Qd2 Nc6 Ne2 Nce7 Qc3 Ng6 Bg2 Nf6 g8B Rh7 Nd2 Nd5 Qc6 Rg7 Nf1 Be6 c8R Ne3 Bd5 Be7 Bd2 Bg5 Rb8 Raa7 Ra8 Rc2 Rc1 Rac7 Bf7 Rb2 Be8 Bf7 Rc2 Qb8 Rg1 Qd8 Kh1 h2 Qb6 Qg3 Ba4 Qg4 Rg3 Qg8 Rg2 Qh5 Rc6 Qhh8 Rd6 Qe8 Qc6 Qhg8 Rf2 Ng4 Kg2 h1B+ Kg1 Ne3 Rh2 Kg4 f5 h3 f6 Kf5 Rf2+ Bf3 Rg2 h2+ Kh1 Be6 f7 Bh5 f8B Bf7 Be7 Bf3 Bdb3 B3d5 Bf6 Bc4 Be5 Bb5 Bd5 Bc4 Rg4 Nc2 Kg2 h1R Re4 Rh5 Kg1 Bb3 Rc4 Ne3 Rc2 Bc4 Nf4 Rh2 Ne2 Rg2+ Kh1 Rb5 Bb2 Ra5 Be5 Bf4 Be4+ Kg4 Ba1 Rg5 Bd5 Kf5 Bf6 Rh5+ Bh4 Rhg5 Bg3 Rh5+ Bh2 Nh4 Bg3 Bg5 Be5 Ng6+
5q1N/Qn2p3/1B3pPq/B1R1bnrR/1R5b/4bK2/2NBB1n1/1qr2b1k w - - 0 1 legal: proof: d4 g5 Kd2 b5 h4 gxh4 a4 c5 axb5 cxd4 f4 Qb6 e3 dxe3+ Kd3 Qf6 f5 Qxf5+ Kc3 Qf2 Kd4 d5 g4 Kd7 b4 Kd6 c4 h5 g5 a5 b6 e2+ Kd3 Ke5 c5 e1B b7 d4 g6 a4 b5 a3 b6 h3 c6 h2 c7 h4 Qg4 h3 Qf3 a2 Qg4 Nh6 Ba3 Na6 b8B Nf5 b7 Bh6 Qg5 Nc5+ Kc4 Ke4 Qf6 d3 Qg5 d2 Nf3 d1N Qg1 Ra5 Bc1 Be3 Ba7 Rg8 b8B Nb7 Na3 Bd7 c8R Bb5+ Kb3 Rd8 Rc3 Rc8 Rb1 a1B Rc5 Be5 Be2 Qf1 Kc2 Bh4 Bd2 f6 Qf2 Kf4 Rg1 h1Q Bb6 h2 Ng5+ Qf3 Rb2 h1Q Nf7 Ke4 Bd6 Qf4 Bdc7 Qh6 Bd8 Qf8 Nh8 Qh2 Rh1 Qf4 Rh2 Q4h6 Kc1 Qg1 Nc2 Bd3 Bh5 Bf1 Be2 Qh1 Qg1 Kf4 Rb4+ Qe4 Qh1 Kg3 Bdc7 Qd3 Qc6 Qe4 Qd7 Qd3 Rh3+ Kg2 Qa4 Rb5 Qa7 Qb3 Ba5 Qa2 Bcb6 Rc7 Rg3+ Kh1 Rg5 Rc6 Rh5 Rc8 Ne1 Qa1+ Kc2 Qc1+ Kd3 Qb1+ Rc2 Rcc5 Ke4 Rc4+ Kf3 Rbc5 Qa6 Rg4 Qa7 Rg5 Rcb2 Rc1 Rc2 Nb2 Rc8 Nd3 Rc5 Nf4 Nc2 Ng2
1Rr1N2b/kn1PK1nq/2R2pn1/b1N4B/3q4/R7/2pRr1bb/NB2r2Q w - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 h5 b3 hxg4 f5 e6 Ba3 exf5 Be7 b6 a4 b5 Bh4 f4 Bg3 fxg3 axb5 Qg5 Ra2 Qf6 Ra1 Qd8 d4 Kd7 Kd2 g5 Ke3 c5 Ke4 Kc7 Ke5 Kb7 h4 a5 e4 c3 h5 a4 b4 a3 h6 g2 h7 c2 b6 c1N d5 c4 b5 a2 d6 c3 d7 g3 Na3 c2 Qf3 g4 Bc4 Qh4 Rh2 Na6 Ne2 g1B Qh1 g2 Nd4 g3 Nb3 Ne7 Kd6 Nc5 e5 N1d3 e6 Ne5 Bd5+ Kb8 b7 Ka7 b8N Bb7 Na6 Re8 Nc4 Rg8 h8R Qh7 Rh6 Bh2 Rf6 g1R b6+ Ka8 Rd1 a1B Rd2 g2 Rg6 Bb2 Na1 Re1 Rh6 Bc6 b7+ Ka7 b8R g1Q Rb3 Rc8 Ra3 Rg2 Rg6 Qd4 Rh6 N7g6+ e7 Rge2 Rg8 Bg7 e8B Nh4 Ke7 Nb7 Nd6 Bh8 Ba2 Bg2 Bb1 Bc3 Nc5+ Ba5 Re6 f6+ Bf7 Rc7 Rb8 Rc8 Ne8 Nf5+ Kf8 Ng4 Rc6 Ne5 Bh5 Ng7 Ke7 Ng6+
1nB1n1N1/3Nn1bn/B1r3Nb/k2P1n1R/rqQK1pB1/2B3r1/R1p5/4n3 w - - 0 1 illegal: No possible last move
1q6/B6n/1qnn1kBB/N5N1/2P5/1Bp1bbpr/nR1nnQ2/r3RR1K w - - 0 1 illegal: No possible last move
KrR5/2b3nb/2Nq3B/1Qrp1rbB/N3kNr1/2r1bNpn/5P1R/3R4 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 c5 d4 cxd4 Kd2 f5 Ke1 b5 axb5 fxe4 Bh6 axb4 Bd2 Rh4 Bc1 Rh8 Kd2 Kf7 c4 Kg6 h4 Kf5 b6 d5 b7 e5 c5 g5 h5 b3 h6 d3 Kc3 g3 Kb4 d2 Kb5 g4 c6 e3 c7 e2 Kb6 e1B h7 b2 Bh3 g2 Ne2 g1R Ra4 e4 Qc2 d1R Rb4 Nh6 Qd3 Ra5 Qc3 e3 Bf1 Rc5 Ka7 Nf7 Rb3 Rd3 Nd4+ Ke4 Qd2 e2 Rh4 Rdc3 Rb6 Bh6 Na3 b1R Rc6 Na6 b8N Be3 Qb2 Rf8 h8N B1d2 Nf3 e1B Be2 Bf5 c8R Nc7 Ng6 Qd6 Nc4 Ne8 Nf4 Bh7 Rh2 Ng7 Nb6 Ng5 Qb5 Nh3 Na4 Rf5 Ka8 Rb4 Ra6 g3 Nc6 Rbc4 Ne6 Bg5 Nf4 Be3 Nh4 B1d2 Bh5 Bd8 Nf3 Bc7 Nb2 Rd1 Ra1 Rd4 Na4 Re1 Bb2 Rb1 Ba3 Rbb4 Rd1 Rb1 Bc1 Rdc4 Ng6 Bg5 Nf4 Be3 Qa5 Rb7 Qb5 Rb8+ Ka7 Bgd8 Ng6 Bf4 Bd2 Kd3 Qb2 Bh6 Qb6 Rg4 Qb5+ Ke4 Bc1 Be3 Bd2 Bd4 Bh6 Bg5 Nf4 Rb6 Ka8 Be3 Ne6 Rb7 Nf4 Rb8+
2N5/rQrbp1r1/2pN1nk1/2n2R2/3r1B1r/2qB1P2/4B1q1/1NNKRb1r w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 fxe4 c5 axb4 c6 dxc6 Qb3 c5 Qd1 c4 a3 gxh4 Bb2 b5 Bc1 b3 Qe2 b2 Qf3 Bb7 Qd1 Bc8 Ne2 b4 Qb3 Bg7 Ng1 Bc3 Qc2 b3 Qd1 Bb4 axb4 Qd7 Ra4 Qd4 Ra1 Qd8 g4 Kf7 d4 h5 g5 c3 d5 h3 f3 h4 b5 h2 d6 e3 d7 h3 b6 e2 b7 c2 Qd5+ Kg6 Ra3 Rh7 Ra4 Ra7 Qb5 Na6 b8N Nc5 Re4 Rg7 Rf4 Nf6 Nc6 Qg8 d8N Bd7 Kd2 e1R Nf7 Re4 Rf5 Rd4+ Bd3 Qc8 Ke1 Qg8 Bf4 c1Q+ Ke2 Qc4 Nd6 Qc3 Nb4 c6 Kd1 Rc7 Ne2 Ra7 Rg1 h1R Nc1 h2 Nd5 Rc7 Nb6 Ra7 Nd2 b1B Re1 b2 Nbc8 Ba2 Qb3 b1R Qb7 Ra1 Nb1 Bc4 Qb3 Rc7 Qb7 Re4 Be2 Ra7 Bd3 Rg1 Be2 h1R Bd3 Rgh7 Be2 R7h4 Bd3 Kh5 g6+ Rg5 g7 Kg6 Be2 Ba6 Bd3 Ra4 Be2 Rd4+ Bd3 Qa2 g8B Qg2 Bb3 Rgh5 Bd5 Rh7 Bc4 Rg7 Bb5 Rb4 Be2 Rd4+ Bbd3 Qf2 Bf1 Rb4 Be4 Qg2 Bc2 Bc4 Be4 Bd5 Ba6 Bc4 Bc2 Bf1 Be2 Re4 Bcd3 Rd4
4b1Rn/1b4r1/7b/R1BQq2R/1NrbrbPN/pr1r2N1/p2k4/K4B1R w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 h3 fxg3 Qd3 g5 Qd2 g4 Qd1 g2 Nc3 g3 Nb1 Nc6 Rh2 Ne5 Rh1 Ng4 hxg4 Bc5 Rh5 Be7 Rh1 Bf8 Kd2 Ke7 b4 Kd6 c4 Ke5 Kc2 Ke4 Kb2 h5 c5 f5 e3 a5 b5 d5 c6 f4 b6 d3 c7 f3 b7 d2 b8N f2 Be2 f1R Ba6 a3+ Ka2 d4 Rh4 a4 Bb2 d3 Bg7 Qd5+ Bc4 Ra7 Na6 Rf4 Bc3 Bb7 c8R Qe5 Qe2 d1R Re8 d2 Rd8 Rc1 Rh2 d1R Qf1 h4 Nc7 h3 Qe2 Ne7 Bd4 Ng6 Nf3 g1B Bc5 g2 Na6 Rd3 Nb4 Bh6 Ra8 Rb8 Nh4 Nh8 Qd2 Bf2 Ba6 g1B Rh1 h2 Qd1 Rd6 Bf1 Rd3 Qb3 Bc6 Qe6 Rbb7 Rg8 Rc4 Rg5 Bg3 Rh5 Rg7 Qg8 Rab7 Qe6 Be8 Qg8 Qf5 Nc3+ Ke5 e4 Bd4 Ne2 Rb6 Rg1 h1B Qf7 Bh2 Ng3 Bf3 Rh1 Rb7 Nd5 Rbb3 Nb4 Qg5 Rb1 Qf5 Rb2 Qg5 Ka1 a2 Qb7 a3 Qb5 Ke6 e5 Bb7 Qa5 Re4 Qa8 Kf7 e6+ Kf6 e7 Ke5 Qd8 Kf4 Qd5 Bf7 e8R Ke3 Rg8 Be8 Ne2 Bf4 Ng3 Rbc3 Rb1 Kd2 Re1 Qe7 Re3 Qe5 Rf3 Bfg5 Rf6 Bge3 Ra6 Bef4 Ra5 Rb3+
r1B1rrB1/1B3Nr1/7q/2N2q1Q/n1p1PpR1/4qkn1/1brB3R/K4r1N w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Kf2 g3+ Ke1 Bg4 hxg4 Qd5 Bb2 Qd6 Bc1 Qd8 a3 c3 d4 Ke7 e4 Ke6 g5 b5 d5+ Ke5 g6 f5 d6 c5 g7 h5 d7 c2 Kd2 Kf4 Bc4 b3 Be6 b4 Nc3 h4 Bb2 c1R Qh5 h3 Qe8 h2 Rb1 c4 Qf7 Qf6 d8N Rc2+ Kd1 Nd7 Na2 Nc5 Qe7 Nh6 Nc1 Na4 Qf7 Qg6 Nge2+ Kf3 Bc3 g1Q+ Be1 b2 Nb3 f4 Qe8 g2 Ng3 Qc5 Bd2 Qe3 Qb5 Bd6 Nf7 Rhf8 g8B Nf5 Rc1 Rae8 Bc8 b1R Rg1 h1Q Qc5 Nb6 a4 Qhh6 a5 Ra1 a6 Be5 a7 Bb2 a8B Ra2 Na1 b3 Bab7 Ra8 Rh1 Qgh5 Rh2 Na4 Nh1 Ba3 Qa5 b2 Nb3 b1R Qd5 Q5g6 Nc5 g1R+ Be1 Rg4 Bd2 Qf6 Qe5 Rg7 Qd5 Ra2 Qe5 Bb2 Kc2 Qe6 Rg1 Rf1 Rgg2 Bc1+ Kb1 Rc2 Rg4 Ng3 Qh5 Qf5 Ka1 Bb2+
qBq2NqN/4b3/qrbR4/K1B2p2/3bRr1N/R2b4/b4p1P/2n2kNQ w - - 0 1 illegal: No possible last move, all moves rejected
q3qnR1/1k2Bb1N/1qbB1b2/1pr2B2/2n3Qn/3K1B2/1N1bRpP1/6qN w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 Kd2 d5 e4 b5 f4 d3 Ba3 Qb6 Kc1 Qf2 Kb2 d4 Rh3 Ra6 Rh1 Rd6 f5 Rd5 exd5 Qxf5 Kb3 Qf2 Bc1 Qe3 Kb2 Qf2 a4 Kd7 d6 Kc6 d7 f5 d8B e5 a5 h5 a6 d2 c4 b3 c5 h3 a7 d3 Kc3 h2 a8N f4 Ra2 b2 Bh4 f3 Qe1 d1N+ Kb4 d2 Bg5 e4 Ra3 h4 Rb3 e3 Nh3 e2 Bd8 Nh6 Bg5 Bb7 Bd8 Ne3 Kc3 d1B Ng1 h3 Be7 Bg7+ Kd3 Nd7 Nb6 Nhf5 Nc3 Nc4 Nbd5 Rh5 Bf4 Bf6 Bfd6 Nh4 Na4 Nf8 Qb4 e1B Ne2 Bd2 Ng3 Qe1 Be2 f2 Rg1 h1Q Bf3 h2 Rf1 Qe6 Re1 Qg1 Re2 h1Q Rc3 Qhh3 Nh1 b1Q+ Rc2 Qf7 Nb2 Qa1 Rc3 Qhh2 Ra3 Qe5 Ra8 Qee6 Re8 Qa8 Rd8 Nfg6 Rg8 Bb3 Qa4 Qfe8 Qb4 Kd7 c6+ Kc8 c7 Bc6 Qa4 Re5 Qb4 Kb7 c8B+ Ka7 Bd7 Nf8 Qa4+ Kb7 Qb4 Bfg5 Nf6 Rc5 Nh7 Bf6 Qa4 Qed8 Qb4 Qb6 Qa4 Qf7 Bf5 Qfe8 Qb4 Ne3 Qf4 Bf7 Qg4 Nc4
1RRr1r1q/Q5B1/7n/1p1PpN1p/2Kb1NqB/2b3n1/B1kqR1B1/1n5b w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 g4 Ke6 b4 Kd5 d4 e5 f4 c5 f5 h5 f6 a6 f7 c3 b6 Kc4 b5 e3 g5 h3 b7 c2 b6 Kb3 Kd3 h2 g6 e2 g7 e1B Ba3 Nh6 g8B Nc6 b8Q Bc3 b7 Na7 Ne2 Nb5 Qa7 Bg4 b8R Bf3 Qd2 c1Q Ra2 Qd1 Nf4 Be7 Rg1 h1N Bg2 Ng3 f8B+ Bd5 Bf7 Qg4 Bg7 Rf8 Rc1 Bh4 Bb4 Na3 Qe2 Qe8 Qf1 Bg5 Re2 c4+ Ke3 Bd8 Be7+ Bb6 Nd2+ Kb2 Be6 Nb1 Nf3+ Kb3 Nh4 Qc8 Bh3 Bh1 Nf5 Qe8 Bh4 Qd8 Bg2 Qf6 Rb7 Rad8 Bh8 Qfg7 Rb8 Qg8 Bg7 Qh8 Rc8 Nd2 Rb1+ Kc2 Ree1 Bc5 Rbb8 Nb1 Re2+ Bd2+ Kf2 c3 Ba2 Bb6 Re3 Bc5 d5 Bd4 Qc4 Kd1 Qb5 c2 Qa8 c1Q Qa7 Qg6 Kf3 B2c3 Re4 Qd2 Re2 Nf1 Ke4 Qg4 Bg5 Qe1 Kd3 Qd2+ Kc4 Kc2 Be7 Ng3 Bh4 axb5+
4knB1/1Rp1Bn1n/1B1pq3/2P2q1r/2r1N1pR/1b4bQ/K2b3B/R2N1r2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 e5 e4 exd4 Nc3 f5 Nb1 b5 axb5 fxe4 Ke2 axb4 Kd2 Nc6 Ke1 Nb8 c4 g5 Kd2 d6 Kc2 d3+ Kb2 b3 h4 e3 f4 d2 f5 e2 f6 e1N h5 g3 b6 g4 h6 g2 b7 Qe7 h7 Bh6 Rh4 Nf3 Nh3 g1B Ng5 Bh2 Ne4 Ra4 Nbc3 Nd7 b8R Nf8 Rb7 Ne5 Qf3 d1R Bf4 Be6 Qh3 Bg3 c5 Rc1 Nd1 Nf7 Bc4 Bd5 Bd2 Qe6 Ba5 Bd2 Bb6 Rb4 Ka3 b2 Ka2 b1Q+ Ka3 Qd3+ Ka2 Ngh6 Bb3 Ng5 Bc4 Nhf7 Bb3 Rg8 h8B Rbc4 Bg7 Rb1 Bh6 Ngh7 Bf4 Rg5 Be5 Bf2 Bh2 Bg3 Ka3 Rh5 Ka2 Ne5 f7+ Kd7 Ndc3 Rf1 Nd1 Qf3 Ba5 Qff5 Bb6 Nfg6 f8B Ke8 Be7 Ngf8 Ndc3 Nf7 Nd1 Rc1 Bc4 Rc3 Bb3 Rc4 Bc2 Rb4+ Ka3 Qd7 Nef2 Nh8 Ne4 Bg8 Bd3 Bb3 Bc4 Qc8 Bd5 Rc4 Bg8 Qce6 Kb2 Nf7 Ka3 Ba4 Ka2 Bb3+
2R2r2/k3nq2/N1R3Q1/b4R2/1BqnBpB1/p3N1bp/Knq1P2B/5rn1 w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 h3 fxg3 Qd3 g5 Qd2 g4 Qd1 g2 Nc3 g3 Nb1 Bb7 Rh2 Bf3 Rh1 Bg4 hxg4 Qe7 Rh2 Qg5 Rh1 Qd8 Kd2 d5 c4 Kd7 Kc2 Kc7 b4 Kb7 Kb2 f5 g5 h5 g6 a5 g7 a3+ Kb3 a2 b5 f4 c5 h4 b6 d3 Qc2 d2 Qe4 d1N Rh2 Na6 Qg6 d4 Ba3 d3 Nf3 g1B Nc3 d2 Nb5 g2 Nfd4 Qc7 Nc2 Nb2 Ne3 Bf2 Rc1 g1N Bb4 a1Q Bh3 Ne7 g8B Bg3 Bh7 d1Q+ Rc2 Qcd7 Nc7 Qac1 Bg4 a4+ Ka2 a3 c6+ Kb8 b7 Ka7 Rh1 Nc5 Na6 Nb3 c7 h3 c8R Rg8 R2c5 Qc4 Rf5 Qdc2 Rc6 Qe8 Rc8 Qef7 b8B+ Kb7 Be5 Ka7 Bec3 Bg7 Be1 Bc3 Rc6 Raf8 Bf2 Nf3 Bg1 Bce1 Bh2 Ng1 Bd6 Ba5 Bb4 Nf3 Rd1 Ng1 Rd8 Rg7 Rdc8 Rgg8 Qg5 Rg6 Qh6 Rd6 Qg5 Rd1 Qg6 Rf1 Bg8 Qh7 Bd5 Qf7 Be4 Nd4+
qnrB1b1B/3Rr1R1/b2b3q/rR2n2p/kN4p1/B3B1P1/5QNp/r2K4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 h4 gxh4 axb5 c6 d5 cxd5 Bc4 dxe4 Be2 e3 Bg4 fxg4 f4 h5 b4 a5 c4 e5 c5 d5 g3 Kd7 c6+ Kc7 f5 Kb6 f6 e4 c7 e2 f7 h3 Be3+ d4 Qd2 h2 Nc3 a4 Nd5+ Kb7 b6 Ka6 b7 Kb5 Rd1 d3 Nh3 a3 Nhf4 a2 Ng2 Ka4 b5 a1B b6 Nh6 Nb4 Ra5 Rg1 Bd6 f8B Bg7 Rf1 Nf7 Rf5 Bh6 Rb5 Ne5 Bg7 Re8 Bh8 Bhf8 Qb2 Qf6 Kd2 e1R Kc1 Ra8 Qf2 Qh6 Kd2 Ra5 Kc1 Bf5 c8R d2+ Kc2 Bd7 Rc7 Bc8 Rg7 Rh1 Bg5 e3 Bd8 Nbc6 b8B e2 b7 e1R Ba7 Nb8 Be3 Re7 Rb1 Ref1 Rb3 Ra1 Rc3 Rhd1 Rc7 Rf1 Rd7 d1Q+ Kb2 Qd5 Kc2 Qe4+ Kd2 Rfc1 Ke2 Nbc6 b8B Ba6 Ba7 Rc3 Bc5 Nb8 Kd2 Qa8 Ke2 Raa3 Kd1 Rc2 Nd3 Raa2 Ba3 Rc8 Nb4 Ra1+
n2N2N1/k1B1r3/2r1Nq2/np1b2q1/1RQ1Rp2/B3r1Pr/1b3Kp1/N2Bb3 w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 a5 h4 axb4 h5 d5 cxd5 f3 g3 g6 Qc2 gxh5 Qc5 h4 Qf2 Ra3 Qh2 Ra8 Qg2 fxg2 d4 Kd7 a4 f5 e4 b5 e5 c5 a5 Kc7 d6+ Kb7 d7 h5 a6+ Ka7 e6 h3 e7 f4 e8N h2 d5 b3 d6 b2 Ra5 c4 Ra3 h4 Re3 h3 Re4 c3 Nd2 b1R Rc4 c2 Nf6 Rb3 Bd3 Nc6 Rc3 Na5 Ne2 Bb7 Rc4 Rh6 Ba3 c1B Bc2 Re3 Kf2 Bb2 Re1 h1R Rb4 h2 Nd4 Ne7 Ne6 Nc8 Bd1 Bd5 Ng8 Qg5 d8B Nb6 Bc7 Re8 d7 Na8 d8N Re7 Nb3 Bfg7 Na1 Bgc3 Nd4 Rc6 N4e6 Rg1 Re2 h1Q Re1 Qhh4 Re2 Rd3 Ree4 Rh1 Be5 Kb6 a7 Re3 Bb8 Rh3 Bd6 Nc7 a8Q Qh8 Be5 Qhf6 Qc8 Na8 Bc7+ Ka7 Bd6 Ra6 Qc4 Rc6 Bc7 Be1+
q1r1Rb2/3B1n1p/2N2qQ1/2RN1p1n/4bB2/5rn1/2prk2P/1NKRN1r1 w - - 0 1 legal: proof: b4 a5 f4 g5 c4 gxf4 a4 b5 d4 e5 c5 exd4 c6 axb4 axb5 dxc6 Qa4 c5 Qd1 c4 Kd2 Kd7 e4 Kd6 g4 Kc5 e5 f5 b6 f3 g5 c3+ Kc2 b3+ Kd3 b2 Kc2 f2 g6 d3+ Kb3 Kd4 b7 c5 g7 d2 Kc2 Ke3 e6 c4 e7 Nf6 g8R Nbd7 b8N Nh5 e8N Qf6 Ng7 Ra3 Bh3 f1N Bg2 Nfg3 Nc6 Ne5 Ra2 Nf7 Qg4 Bb7 Nf3 Ke2 Qg6 d1R Bf4 Rd8 Ne6 Rc8 Nbd2 b1R Nc7 Rg1 Ne1 Rb3 Kc1 c2 Ra4 Rf3 Nb1 Rd8 Ra5 Rd2 Rc5 Ba8 Ne7 Be4 Ncd5 Qc6 Kb2 Qa8 Nc6 c3+ Kb3 Be7 Re8 c1Q Bf1+ Kf2 Bc4 Bf8 Bb5 Rg8 Ba4 c2+ Ka2 Qd1 Kb2 Qe2 Kc1 Qea6 Nd8 Ke2 Bd7 Qf6 Nc6 Rg2 Nd3 Rh8 Rd1 Rg1 Ne1 Bd6 Re5 Rc8 Re8 Bf8
7N/2Kpn1Nr/qq1p2RN/1Rb1bpQr/3n3R/P1r5/R1B1k3/2B2qq1 w - - 0 1 illegal: No possible last move, all moves rejected
q4r2/1Pq1K1n1/1bp2nbR/qpR1NB1N/Q1b2RR1/B1q5/N5p1/r3k3 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 Bh3 hxg4 Bg2 Nd7 Bf1 Nb8 a4 Qd7 b4 Qd6 a5 Qd8 a6 bxa6 b5 Nh6 b6 Ng8 Qb3 Rh5 Qb2 Rh8 Qb5+ axb5 Kf2 Kd7 e4 Kd6 d4 a5 h4 f5 b7 g5 h5 f3 Ke3 c6 h6 a4 h7 f2 Ra2 a3 Bd2 g3 Rc2 g4 Kf4 a2 Nc3 a1Q Rh4 g2 Nf3 g1Q Bd3 f1Q Bc1 g3 Na2 g2 Rc5 Qc3 Rg4 Qfe1 Ne5 Nf6 Kg5 f4 Ba3 f3 Kg6 f2 Kf7 Rg8 h8R f1B Rh6 Bf5 Bc2 Qh2 Bb1 Kc7 d6+ Kb6 d7 Ka5 d5 Ne8 d6 Ng7 Bc2 Qc8 d8R Bc4+ Kf6 Qhg3 d7 Bg6 Bd3 Bd6 Rf8 Bc7 d8Q Nd7+ Ke7 Bb6 Rff4 Nf6 Qd4 Rf8 Bb1 Ra7 Qd1 Qa8 Qc2 Ka6 Qa4+ Qa5 Nd3 Qc3 e5 Qe3 e6 Qee5 Qb3 Qeb8 Ne5 Qc8 Bf5 Qc7+ Nd7 Qab4 Qc2 Ka5 Qe4 Ka4 Qd4 Kb3 Qe4 Qcc8 Ne5 Qa5 Qd4 Bd3 Qc4+ Kc2 Qa4+ Kd2 Kd6 Bb1 e7 Ke1 e8N Bd3 Ke7 Bf1 Kd6 Bc4 Ke7 Ne6 Ng7 Qc7+ Nd7 Ra6 Nh5 Ng7 Bc1 Bd3 Qa3 Qb2 Nc3 Qab4 Qb3 Ra3 Qa4 Ra1 Na2 Q2c3 Bb2 Bc4 Ba3 Qcb8 Ne5 Qba5 Rg3 Qc8 Rgg4 Qc7+
1n6/N4rb1/1kr4B/nN2BqR1/3rbKb1/3Np2P/2rR1p1p/bR4NQ w - - 0 1 illegal: No possible last move, all moves rejected
1N6/2n3N1/Q1b2R2/bp1rP1b1/k1Kpnr1R/b1nB2p1/BRn5/5BqB w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 fxe5 h5 g4 hxg4 Bf4 f5 Bg3 f4 Qd2 fxg3 Qd3 Ra5 Qd1 Ra8 Kd2 d5 Kd3 Kd7 a4 Kc6 e4 g5 h4 g2 c4 b3 a5 b6 c5 Kb5 h5 b2 e6 g3 c6 g4 a6 Be7 h6 Bd7 e5 Bb4 h7 Ba5 e7 Nf6 e8B Ne4 a7 Na6 c7 Qg5 c8B Nc7 Ra2 Rf8 h8R Rf4 Bf7 Bc6 Bf5 Rd8 Ne2 g1B a8B g2 R1h4 Be3 Nd2 g1B Nb3 b1N Ng3 Nbc3 Rb2 Ka4 Rf8 Bc1 Qe2 Bge3 Nh5 g3 Rc2 Ba3 Ng7 Qe7 Rb2 Qc5 Bg8 Bc1 Rf6 Rd7 Kc2 Rd6 Qa6 Be3 Nd2 d3+ Kc1 Bd7 Bfe6 Rf2 Nf5 Bg5 Ng7 Rf4 Nb3 Nd2 Bh7 Qg1 Nd4 Bb5 Nc6 d4 Nb8 Bd7 Bad5 Bc6 Bhe4 Rd8 Bh1 Nde4 Ba2 Rd7 Bec4 Rd5 Rg6 d2+ Kc2 d1N Kd3 Ne3 Rf6 Ng2 Bb1 Ne3 Bca2 Ng2 Kc4 Ne1 Bbd3 Nc2 Rd6 Rf5 Re6 Rf4 Rf6 b5+
R1q1N1qN/b5Rb/1b3b1r/QP5k/Kn5p/2pB1n2/1p1q4/1BB1R1Bb w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 d5 h5 dxc4 h6 gxh6 Nf3 h5 Ng1 h4 a4 a5 Qc2 b5 Qb3 b4 Qd1 Ra7 b3 Qf6 Ra2 Rb7 Ra1 Rb5 axb5 Qc3 Ra3 Qxb3 Ra1 Qb2 g4 h5 d4 f5 e4 Kf7 d5 Kg6 g5 c5 e5 f3 e6 c3 d6 c4 d7 h3 d8B h2 e7 b3 e8R c2 Kd2 a4 Ra2 f2 Qf3 h4 Qg4 f4 Ne2 f3 Ng3 a3 Bf6 Bc5 Ne4 Na6 Qh3 Nh6 Rd8 Nf5 Rd5 Nd4 Rd7 Nb4 Nd6 Bb6 Nf7 Rh6 Bd3+ Kh5 g6 f1Q g7 f2 g8B Qg2 Bgh7 Qg8 Re1 f1Q Nh8 h1B Rg7 Bf5 Nc3 Qf3 Qg3 Qc6 Ne4 Qcc8 Nd6 Ba7 Ra1 a2 Ne8 Bg6 Qc7 Nf3+ Ke2 Be4 Bd4 Bf5 Bg1 Qd4 Bf4 c1B Kd1 Be3 Qa5 Qdd8 Bg5 Beb6 Kc1 Be4 Kb2 Qd6 Bb1 Qd2+ Ka3 Bf5 Ka4 Be4 Bd3 Bg6 Rad1 a1B B5e3 Bc3 Ra1 Bf6 Bb1 Bc2 Bd3 c3 Bf4 Qh2 Bc1 Qd2 Ra2 b2+ Ka3 Qh3 Bg6+ Kg5 Qa6 Bb8 Bf5+ Kh5 Ra1 Bb3 Ra2 Bf7 Bfd3 Bg6 Qa8 Bh7 Ra1 Nd5 Kb3 Qhe6 Ra5 Qc6 Ka4 Qc8 Qa7 Nb4 Qc7 Be3 Ra8 Bba7 Qa5 Beb6
K4BNB/3q4/1P4Qb/R1r3pq/1rp1NN1k/3n1nr1/1p1N1Rr1/R3r1n1 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 a5 g4 axb4 g5 b3 g6 hxg6 Na3 g5 Nb1 g4 Ba3 d5 Bc1 b5 Bg2 b4 Be4 Bd7 Bd3 Bb5 cxb5 Be7 Bc4 dxc4 Nf3 Bc5 Ng1 Bf8 Kf2 Ke7 h4 Kf6 a4 c5 e4 g3+ Kf3 g2 d4 b2 h5 Kg5 e5 f5 d5 c3 b6 b3 d6 c2 e6 Nc6 a5 Nge7 d7 Rg8 h6 Ng6 e7 Nb4 e8N Nd3 Nc3 b1R Ba3 c1R a6 c4 h7 Rc2 h8B Rc8 a7 Rc5 a8R Rbb2 Nh3+ Kh4 Qg1 Qc7 d8N Qd7 Ne4 Rb1 Nd2 Nge5+ Ke2 f3+ Ke3 f2 Nb7 f1R Rh2 f4+ Ke4 f3 Nf6 f2 Ra5 Nf3 Nd6 g6 Bb4 Bh6 Ba3 Rg7 Ng8 Rfd1 Bb4 f1Q Ba3 Qf2 Bb4 Qg3 Nf4+ Qgh3 Ba3 Rc8 Kd5 Re1 Qc5 g1N Rf2 Rbb2 Qd4 Qhg4 Qe4 Qh5+ Qf5 g5 Bb4 Rge7 Qg6 R7e3 Ba3 Nh2 Bc5 Rg3 Bb4 Nhf3 Ba3 Qa4 N6e4 Rbb1 Bf8 Rc5+ Kd6 Rbb2 Qe8 Qb5 Qc6 Rbb1 Kc7 Rcb2 Kb7 Ra2 Qd5 Qd7+ Ka8 Rbb2 Qe6 Ra4 Qd6 Rb4 Qg6 Ra2 Nf1 Rae2 Nfd2 b2 Rf1 Rh2 Rf2 Rhg2
4Qb2/KN1R1p1n/1pNn4/1b2q1bP/kN1B4/nbb4q/1B2BpR1/1r4B1 w - - 0 1 legal: proof: b4 a5 g4 d5 f4 h5 a4 hxg4 c4 dxc4 f5 Ra7 f6 axb4 a5 b6 a6 Rb7 axb7 exf6 Kf2 f5 Ke1 f4 Kf2 Kd7 d4 Kc6 e4 Kb5 h4 c5 d5 g5 e5 b3 d6 b2 e6 g3+ Kf3 g4+ Ke4 g2 Kd5 g3 e7 f3 e8N f2 d7 Qf6 d8B Ne7+ Ke4 Nd7 b8B Ne5 Bg5 Be6 Ra6 Nc8 Rh2 Nd6+ Ke3 Qe7 Ne2 g1Q Ba7 g2 Qe1 c3 Bb8 c2 Bf6 c4 Kd4 c1B Ra7 c3 Rd7 c2 Na3+ Ka4 h5 b1B Kc3 Rg8 Nd4 Bg5 Be2 c1B Nac2 Bb3 Nc6 Qh1 N2b4 g1N Rg2 Nec4 Bd4 Qe5 Bf6 Bd3 Bg7 Nh3 Bf6 Nb7 Nd6 Na3 Bg7 Bb5 Bf6 Na5 Nb7 N5c4 Kd3 Bb2 Bc7 Qe6 Bh2 Bc3 Bg1 Qd6 Ke4 Qf4+ Kd5 Nd6+ Bc4 Qhh2 Qe8 Rg6 Bg7 Re6 Bh8 Re1 Bhe5 Rb1 Bh8 Bf6 Bg7 Ng5 Bh8 Bc2 Be2 Nh7 Bg7 Bg5 Bgf6 Ba1 Bb2 Qhh4 Bfd4 Qh3 Bc1 Bfe7 Ncd8 Bf5 Na5 Bc3 Bb2 Ba6 Kc6 Bb5+ Kc7 Bg6 Kb8 Bf8 Ndb7 Bc2 Ka7 Qe5 Nac6 Bb3
B2n4/N3pn2/3R1q2/RKbN1b2/BNnn3p/3p2n1/1P1kBN1Q/1q3q1r w - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 d4 fxe4 h4 Ra6 f5 g5 a4 bxa4 h5 c5 Bf4 gxf4 g5 Rg6 hxg6 cxd4 Ke2 d5 c4 Kd7 f6 Ke6 c5 Kf5 g7 h5 f7 a3 g6 d3+ Kd2 a4 Kc3 d4+ Kc4 d2 c6 d3 c7 f3 Ne2 f2 Qb3 d1N Nec3 Kf4 Qb6 e3 Qb3 e2 Nd2 Ke3 Nf3 e1Q Nd2 a2 Kb4 a3 Qc2 Nc6+ Kb5 Nh6 g8B Qd6 g7 Bf5 c8N Nd8 Na7 Qf6 Be2 f1N Nde4 Ng3 Nf2 Qf1 Rh4 Rh7 Rd4 Rh8 Rd6 Rh7 Qa4 Kd2 Nd5 Ne3 Qh4 Nc4 Qh2 Rh8 Bh7 Qb1 g8B Bg7 f8N Nhf7 Bg6 Bh6 Ne6 Be3 Nec7 Bc5 Nb4 Qf1 Rb1 a1N Ncd5 Nc2 Ra1 a2 B8h7 h4 Bgh5 Rg8 Bhf3 Rg4 Bg6 Re4 Bgh5 Qb1 Bd1 Re1 Bfe2 Rh1 Bhf3 N2e3 Ba4 Nc2 Nf4 Qf1 Ba8 Qb1 Nfd5 Qf1 Re1 a1Q Rb1 Qa2 Ra1 Qab1 Bb3 Bh3 Ra5 Bf5 Ba4 Nd4+
3Nb2R/KP2nB2/3B4/qNpb1p1n/5qkn/2B2qp1/1qrQ2R1/1R4bB w - - 0 1 legal: proof: h4 b5 f4 e5 c4 exf4 a4 bxa4 c5 g5 c6 a5 g3 dxc6 Rh3 c5 Rh1 c4 Ra2 Ra6 Ra1 Rg6 Rh2 g4 Rh1 Rg5 hxg5 fxg3 b4 Ke7 d4 Ke6 Kd2 Kf5 Ke3 h5 b5 a3 g6 h4 b6 a4 b7 c3 g7 h3 d5 c2 Kd4 a2 d6 h2 Kc5 a3 e3 g2 Nh3 g1N Bb2 c1Q+ Kb5 Nf3 d7 Nh4 Qd2 Nf6 g8R Nh5 Nc3 Bc5 Rb1 a1Q Bg2 a2 Nf4 Qf6 d8B Nc6 Ka6 Ne7+ Ne6 Bd7 Nb5 Be8 Bc3 Qab2 Rg1 c6 Bh1 g3 Rg2 a1Q+ Bda5 Qd1 Nd8 Qf3 Rf8 Kg5 e4+ Kg4 e5 Bg1 e6 c5 Ka7 Q6f4 Be5 f5 Bd6 Rh7 Rh8 Qaa4 Kb8 Rh6 Bb4 Qa5 Bc3 Nd5 e7 Re6 Qd1 Re2 Qc1 Rc2 Qd2 Bd7 e8B Ne7 Bf7 Be8 Re2 Qf1 Bc6 h1B Rg2 Qab4 Ka7 Qd1 Rh2 Bd5 Rg2 Qdf3 Ne6 Ba2 Nd8 Q3e3 Re2 Qef2 Bg2 Bd5 Bh1 Q2f3 Rg2 Qa5+
1n1RK2b/2pRBp2/2b2p1N/1B2q3/1rb1nn2/Bn1PQ3/1bR2bR1/3k1N2 w - - 0 1 legal: proof: b4 b5 c4 a5 a4 h5 g4 hxg4 f4 d5 f5 dxc4 f6 exf6 Nh3 Ra6 Ng1 Rb6 Ra2 axb4 Ra1 b3 Bh3 b4 Bf1 Rb5 axb5 Ke7 Na3 Kd7 Nb1 Ke8 Kf2 Kd7 Ke3 Ke6 Kf4 Kd5 h4 Kd4 e4 g3 e5 b2 h5 g2 b6 c3 h6 b3 b7 c2 e6 Qd5 h7 Bd7 e7 Bc6 e8R Ne7 Nh3 g1B Rd8 Bf2 Qe1 g5+ Kg4 Qd6 Kh5 g4 Rd7 g3 Rh2 g2 Ra2 g1B Rg2 Ng6 Bb5 Bg7 d3 Bh2 Qe7 Be5 Nd2 Ke3 Nf1+ Ke2 Qe8 b1B Ba3 Rf8 h8R b2 Qe7 Rc8 Rhd8 Bh8 Kh6 c1N Kh7 Nf4 Kg8 Qd4 Kf8 Kd1 Ke8 Nb3 Qc5 Qc3 Qe3 Bc2 Be7 b1N Rb2 N1d2 Ra2 Bb1 Rc2 Ne4 Ba3 Na6 b8B Ba2 Ba7 Nb8 B7c5 Qa5 Be7 Bb2 Ng5 Qc3 Nf3 Qe5 Nh4 Na6 Re2 Rb8 Nf5 Rb6 Rc2 Nb8 Nh6 Rb7 Ba6 Rb4 Bc4 Na5 Ba6 Bc4 Bb5 Nb3
bB6/1n2n1BQ/B5Bp/1N1bp2q/KR1n2p1/2r2k2/P1r1Rp1b/N2R3r w - - 0 1 illegal: No proof kernel
1nq1R2b/r1Rn4/RP2K1B1/2pB1QNn/2p5/2pR2Nr/p1N1q3/b1kr4 w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 b5 a4 bxc4 Kf2 h5 Ke1 hxg4 b4 d5 b5 Bd7 b6 Bb5 Bb2 d4 Bc3 dxc3 axb5 Qg5 Qc1 Qf6 Qd1 Qd8 Kf2 Kd7 d4 Ke6 e4 f5 h4 g5 h5 g3+ Kf3 g2 e5 Kd5 h6 g4+ Kf2 Ke4 b7 f3 Kg3 Ke3 h7 f2 b6 Nf6 e6 Qc8 d5 Nfd7 e7 Bg7 Ne2 g1B Bg2 f1Q e8B f4+ Kh4 c6 Kg5 g3 Kf5 f3 d6 f2 Bd5 g2 Ng3 Qe2 Na3 f1N Qb1 Kd2 Bg6 B1d4 Nc2 a6 Ra5 Ra7 Qb5 Bde5 Ke6 Kd1 Rh5 Kc1 Rf5 Bgf6 Qc5 Bg7 Rf7 Bgf6 Qf2 Bg7 Qf5 Bef6+ Ne4 Ng3 Ra2 Nh5 Ra4 Rf8 h8N Be5 Re7 Bgf6 Nf7 Bh8 Nfg5 Rf7 Qh3 Rf3 Qf5 Rh3 Rg7 Bf4 Ra3 g1R Re7 a5 Re8 Be3 Ng3 c5 Re7 a4 Rg7 Na6 b8R Rd1 Ra2 a3 Rf7 Qc6 Re8 Nab8 Rfe7 Qc8 Rf7 Ndf6+ d7 Bd2+ Kd6 Be3 d8R Bd2 Rc7 Nfd7 Rb2 Be3 Rb4 a2 Ra4 Kb1 Ra6 Bc1 Qe4 Bb2 Qf5 Ne5 Rdd7 Kc1 Ke6 Ba1 Bg2 Qb7 Rd3 Qa8 Bd5 Ned7+ Qe4 Qb7 Qe5 Qc8 Qe4 Qf3 Qf5 Qe2+
K2q4/R3n1kp/n1Np4/Bpb1N2p/3N1nnr/8/QRP2B1q/bN2r1B1 w - - 0 1 legal: proof: e4 c5 b4 a5 h4 axb4 d4 f5 h5 g6 e5 gxh5 Bd3 Kf7 Be4 fxe4 e6+ Kg7 Qf3 cxd4 Qe2 d6 Qd1 Bd7 exd7 Kf7 Ke2 b5 a4 e5 g4 b3 f4 d3+ Ke3 d2 g5 b2 a5 Be7 f5 Ra7 a6 Rc7 a7 Rb7 a8N Bf6 g6+ Kf8 g7+ Kf7 Nf3 Qb6+ Nd4 Ra7 d8B Ne7 g8N Kg7 Re1 Rc7 Ra7 Na6 Rh1 Qb8 Nb6 Rc4 Nd7 Ra4 Bb6 Qd8 Ba5 Rb4 Qe2 Ra4 Qc4 d1N+ Ke2 e3 Kf3 e2 Ke4 e1N Qa2 Nd3 Be3 Rb4 Bf2 Nf4 Rh3 Rc4 Rb3 Ne3 Rb4 Ng4 Rb3 Nc8 Ne7 Re8 Nc6 Ne7 Bg1 Rc3 Bf2 Rh3 Bg1 Rh4 Bf2 Kh6 Bg1 Bh8 f6 Kg6 f7 Kg7 Nd2 b1Q Rb2 Qf1 Nb1 Qh3 Bf2 Qh2 f8B+ Kg6 Bh6 Bf6 Bg5 Kg7 Bg1 Ne2 Kd3 Nf4+ Kc3 e4 Nde5 e3 Bf2 Nb8 Kb4 e2 Bg1 Ng2 B5e3 Nf4 Bef2 e1B+ Kb3 Bd2 Ka3 Be3 Kb4 Rg8 Bb6 Re8 Ka5 Na6 Bc7 Bd2+ Kb6 Bb4 Kb7 Bc5 Ba5 Nc8 Nd7 Re1 Ka8 Be5 Nb3 Bc3 Nde5+ Ne7+ Kb7 Qb6+ Ka8 Qc7 Nbd4 Qd7 Rb4 Ba1 Rb2 Qd8+
6n1/1BKp2Rp/P2B4/4Nb1b/nN2R1pr/2Nr1q2/q2Q3p/NR1qq2k w - - 0 1 legal: proof: g4 c5 h4 a5 b4 axb4 d4 cxd4 f4 e6 g5 Bc5 g6 fxg6 h5 gxh5 e3 Bd6 f5 Bf4 exf4 h4 Qd3 h3 Qd2 Kf8 Qd1 Ke8 Kd2 Ke7 Kd3 Kd6 Ke4 g5 a4 b5 c4 e5 a5 d3 f6 h2 f5 b3 f7 b4 f8R b2 f6 d2 f7 b3 Nc3 Qf6 Bg2 Na6 Re8 b1B+ Qc2 d1Q f8N b2 c5+ Kc6 Ne6 Bb7 Nf3 Qf7 Bf4 Qf6 Ke3 e4 Qd2 Qf7 Kd4 e3 Ke5 e2 Rf1 Bf5 Rg1 b1Q Re7 Qbc2 Rb1 Qa2 Re1 Qh5 Rg7 Rb8 Bg3 Ba8 Bf4 Rb4 Bg3 Rh4 Ned4+ Kc7 c6 Nc5 a6 Na4 Nc2 Bb7 Nfd4 Qf3 Nb4 Kb6 c7 Kc5 c8N g4 Qf4 Bd5 Ndc2 Bf7 Na1 Bh5 Qd2 Kc4 Na7 Kc5 Nd3+ Kc4 Kd6 Kd4 Rf1 e1Q Kc7 Qa3 Bd6 Qa2 Nd5 Ke4 Nb5 Be8 N5b4 Bh5 Qc2 Ke3 Ne5 Kf4 Rf2 Kg3 Bh1 Kh3 Rd2 Kg3 Rd4 Kh3 Bg2+ Kg3 Qc3 Kf2 Re4 Kg1 Bf1 Kh1 Qd2 Ne7 Be2 Rf8 Nc3 Ng8 Bb5 Rb8 Bc6 Rb5 Ba8 Rd5 Bb7 Rd3
bQ4qq/2NR4/1p3qN1/4NNK1/prP1pBnB/1k2np2/2rn1R2/2B1n3 w - - 0 1 illegal: No extended proof kernel
6bB/k1n1R3/Np4B1/1B5p/Q3rNbp/3K1Npn/q1PN1bqq/4R2b w - - 0 1 legal: proof: d4 c5 e4 a5 h4 d5 g4 f6 b4 axb4 g5 fxg5 Bg2 gxh4 Bf1 Ra5 Bb2 cxd4 Bc1 d3 Nf3 d4 Ng1 Rd5 exd5 Qd6 Bf4 Qc7 Bc1 Qd8 Kd2 Kd7 f4 Kc7 a4 Kb6 f5 e5 d6 h5 f6 g5 f7 b3 a5+ Ka7 a6 e4 d7 b2 Nh3 b6 Ra3 e3+ Ke1 e2 Kd2 g4 Rh2 g3 Rb3 Nf6 Nf4 Ne4+ Ke1 Bc5 f8N Ng5 Kd2 Nh3 N8e6 Re8 Ng5 Re4 Rh1 Qe7 d8N Qb7 Rb4 Be6 Nf3 Bg8 Nde6 Qc6 Nc7 Qd5 Na3 b1Q Nc4 Qa2 Ba3 Qc6 Qa1 Qd5 Rb1 Qb7 Rd1 Qd5 Bb2 e1Q+ Kc1 Qa8 Ncd2 Qe2 Re1 Qh2 Rg1 Nd7 Rg2 Nf8 Rge2 Ne6 Re3 Qb3 Qa4 Qa2 Ncd5 Nc7 Nb4 Re8 Re7 Qc6 Rd7 Re4 Re7 Qb7 Nc4 d2+ Kd1 Ka8 a7 Qc6 Na6 Kb7 a8B+ Ka7 Ne3 Qcd5 Bb5 Qb7 Nfg2 Qc6 Ke2 d1B+ Kd2 d3 Nf1 Bf2 Nf4 Qb7 Kc3 d2 Kd3 Qc6 Bh8 Qb7 Ne5 Bg4 Nf3 d1B N1d2 Qbd5+ Nd4 Bgf3 Bac6 Bg4 Be8 Bdf3 Bf7 Bh1 Bg6 Qe5 N4f3 Qea1 Re2 Qag1 Re1 Qgg2
1b4qq/1N2Nn2/1pBpp2k/1qqN4/2R4B/2P1R1Qb/RNr3p1/r2K1b2 w - - 0 1 illegal: No possible last move
NB3k2/2qnrBp1/4Q2n/1RN2p2/q3b1B1/2p2q1K/rRp1N2P/1qN4n w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 h5 Kf2 dxc6 Ke1 c5 Ba3 c4 Bb2 Qd5 Bc1 Qd8 g4 hxg4 a3 b5 Nf3 b3 Ne5 b2 Nf3 b4 Ng1 b3 Nc3 Bb4 axb4 Rh5 Nb1 Rh8 Kf2 c5 Kg2 f5 e4 g3 d4 c3 e5 c2 e6 c4 e7 c3 b5 Nc6 d5 Kf7 e8B+ Ke7 d6+ Kf8 d7 Ra6 b6 Nb4 b7 Qc7 d8N Ra2 b8N Nd3 Nb7 Nh6 Kh3 g2 Nc5 f3 Nba6 f2 Bf7 Ne5 Bf4 Bb7 Nd2 b1Q Qe2 b2 Ndb3 Qd1 Rb1 Nd7 Qe6 Be4 Be2 f1N Bg4 Ng3 Ne2 g1Q Nbc1 Qgd4 Rf1 Nh1 Re1 Qa7 Bb8 Qa4 Nc7 Qd5 Na8 Qc7 Ra1 b1Q Rd1 Ra3 Ra2 Qdb7 Rb2 Ra2 Rd6 Qd5 Rdb6 Qd3+ Ng3 Qe2 R6b5 Qf3 Qa6 Ke7 Qc6 Re8 Qd5 Kf8 Qe6 Qff4 Nge2 Re7 Qg6 Qf2 Qe6 Qf3+
N1q1R1r1/r1Np3B/1n3pb1/P3p1b1/k1p5/1R1Nb2p/K4nbN/Q2B3B w - - 0 1 illegal: No proof kernel
1B1k3K/2R1bb1n/2B4b/1qq1N3/1RB1NPnb/r2b1n2/b1Q1q2r/3Bb1R1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 b5 f4 g5 c4 d3+ Ke3 b3 h5 d4+ Kd2 e3+ Ke1 b4 a5 b2 a6 b3 a7 d2+ Ke2 e4 c5 g3 h6 g4 c6 g2 h7 g3 c7 Nh6 Nc3 b1Q Nb5 b2 Qe1 Qd6 Ra2 Ng4 Nh3 g1B Ra4 g2 Rb4 Bf5 c8B Qc5 Rc4 Bh6 Nf2 Kd8 Nd6 Nd7 Ra4 Ndf6 Rb4 Bg6 Nd3 Bf7 Qf2 d1B+ Ke1 e2 Kd2 e1N Ne5 Bc2 Bc4 d3 Kc3 e3 Ne4 e2 Be3 d2 Bd7 d1Q Bc6 Bh2 Rg1 Nf3 Bd4 e1B+ Qd2 Rb8 a8B Qe2 Ba4 Bd3 Bd1 Bhg3 Bc6 Bh4 Bf2 Rg8 h8R Ra8 Rh7 Rh8 Rg7 Nh7 Be3 Qd5 Ba7 Qc5 Bb8 Be7 Rf1 B1h4 Qc2 g1B Re1 Bgf2 Rg1 Qc1 Ba4 b1B Bc6 Nhg5 Rh7 Ba2 Rg7 Qb5 Rh7 Nfh2 Rg7 Be1+ Kd4 Ra3 Rh7 Bh5 Rf7 Nh7 Rg7 Bf8 Rc7 Bc5+ Kd5 Nf3 Ke6 Bce7 Kf5 Qce3 Ke6 Qec5 Kf5 Rg8 Ke6 Rg6+ Kf7 Rd6+ Kg8 Bf7+ Kh8 Rd5 Ng6 Rh5 Ne5 Bhf2 Nd6 Rh2 Ne4 Bfh4
6Qq/2bb1n2/bn2N2P/4bq2/K1Bn1Rrb/RB1N2B1/b3r1b1/Nk2Bq2 w - - 0 1 illegal: No possible last move
3Bb1nb/qrbqN1RK/4N1n1/q2B1qP1/3Q2R1/5qr1/4N1rq/1R1Nnk2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 a5 b5 g5 h5 f5 b3 f6 b4 a6 b2 f7 b3 a7 e3+ Kd3 e4+ Ke2 Kc4 c3 d5 Rh2 d3+ Ke1 e2 Kf2 e1B+ Ke3 d4+ Kf4 h3 Be3 h4 Rg2 h2 Rf2 h1Q Rd2 h3 Qc1 h2 Ra5 Bg7 f8N Bd7 Bg2 Rh3 Nf3 Rg3 Ra2 Qg1 Rf2 h1Q Re2 d2 Nh4 Kd3 c4 d1Q c5 Bh8 c6 Qhh2 c7 Ba5 c8N Nc6 Re1 Ne5 Nc3 b1R Rb2 Be8 Kf5 Bc7 Ne2 Ng6 Ne6 Qf2+ Bf4 e3 Ne7 Qfg1 Ra2 b2 Ra4 Qd5+ Be5 Qa5 Qc4+ Kd2 Bd5 d3 Rb4 Qda4 Bg7 Qd7 Bf6 Rb8 a8R Rb7 Qd4 Rg2 Nc3 e2 Ra7 Qe3 Rh1 e1N Nd1 Ke2 Nf3 d2 Ng1+ Kf1 Ne2+ Qeg1 Rc4 Rc1 Rb4 Rc3 Ra4 Rcg3 Rb4 Qh7 Rh4 Qh2 Rg4 Rd3 Rb5 b1Q Rb2 Qc2 Rb1 Qf7 Nc6 Qfh7 Bd8 Qcc5 Ne7 Rdg3 Ra6 Qa7 Rab6 Qda4 Rd6 Qb3 Rd7 Qf3+ Qf4 Qb8 Nf2 d1Q Nc8 Qda4 Re7 Qba7 Nd1 Qg7 Rd7 Qgc3 Rg7 Ne5 Ne7 Qb2 Rh7 Qd7 Rg7 Nf7 Kg6 Qe5 Qd4 Qef4 Rh4 Ne5+ Kh7 Qf6 Rb2 Ng6 Rb1 Qg1 Re4 Q6f5 Rg4 Qh2+
8/1RqnrN2/3QbR1K/3Rq1PB/1nR1nNrn/N4k2/qbnq1B2/5bq1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 f5 c4 d5 a4 b5 a5 h3 a6 h2 a7 d3 e3 d4 c5 b3 g5 b4 c6 f3 c7 b2 Na3 b1Q Bg2 b3 Nb5 d2 Qf1 d1Q Ra5 f4 Ra2 b2 Ra1 d3 Nd4 d2 Qe2 Nc6 Ra3 Nb4 Ne6 Nf6+ Kh4 h5 Ra5 Qe1+ Qf2 d1Q Ng7 Qa2 Ne6 b1N Rc5 Na3 Ne2 Nac2 N2d4 Qdd2 Bh3 Bg7 Rf1 h1N Nb5 Re8 Na3 Ng3 Rd5 Re7 Bg4 Nd7 Qh2 f2 Be2 f3 Nf4 Rb8 a8R Bb2 Ra7 Ra8 Rb7 Ra4 Kh3 h4 Kg4 Nf5 Kh5 h3 Kg6 Nh4+ Kh6 Qd3 Bd2 Qea1 Be1 Qd2 Qg3 h2 Bd1 Ne5 Be2 Be6 c8R h1Q Rc4+ Nd4 Qh2 Qc7 Qg3 Qg1 Qh2 Kf5 e4+ Kg4 Bd1 Nd7 e5 Qac1 Be2 Qcc3 Bd1 Ndc2 Be2 Bf5 e6 Q3e5 Bd1 Rg7 e7 Be6 e8N Re7 Nd6 Qdd4 Bc3 Qd2 Re1 f1N Bd4 Ng3 Rf1 Ne4 Nf7 Qde3 Qd2 Kg3 Bb6 f2 Bh5 Qe1 Qd4 Qd2 Qc5 Bg4 Qd6 Kf3 Rd1 f1B Bf2 Qed4 Rf5 Qe5 Rf6 Qe1 Rd5 Qd2 Bg6 Be6 Bh5+ Qg4 Ba7 Nd3 Bf2 Ng3 Rcc5 Rc4 Rc6 Ndb4 Nh3+ Rf4 Rc4 Ne4 Bg6 Qg1 Bh5+ Kg2 Rc3 Rg4 Rc4 Ne1 Nf4+ Kf3 Bb6 Nec2 Ba7 Bc1 Bf2 Bb2
n1q2Br1/2b1B2b/2n4q/N1QrN1P1/NR2rRb1/n2r1rn1/6KB/1B1k2n1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Kc6 Kf2 Kd5 d4 e5 a4 b5 g5 c5 a5 h5 a6 e3+ Kg2 Ke4 f5 h3+ Kh2 e2 a7 e1N f6 b3 d5 b2 f7 b4 d6 c3 d7 c2 Ba6 h4 Qd6 c4 Ra3 b3 Be3 c1R Bb7+ Nc6 Qd1 c3 Qg4+ Kd3 Qf3 Kc2 Qf5+ e4 Qf3 Nge7 Qh5 Nd5 Qh7 Nc7 Qf5 Rd1 Qb5 Bd6+ Bf4 e3 f8B e2 Qf5+ Rd3 Bh6 Rg8 Ra2 Kd1 Qg4 c2 Bf8 c1R Ba6 Rcc3 Nd2 b1N Qf3 b2 Bh6 Na3 Qd5 b1B Rb2 Qe8 d8B Bg4 Be7 Rd8 Nc4 Na8 Bc8 Bc7 Qc5 R8d5 Bf5 Qc8 Nf3 Rb3 Kg1 h2+ Kf2 h3 Na5 Bc2 Rf1 h1Q Ne5 h2 Bhf8 Rbc3 Rb4 Bb1 Rg1 Bc2 Rg3 Nf3 Be4 Ng1 Rf3 e1R Bf5 Nb6 a8N Re4 Kf1 Rb3 Rf2 Rf3 Bg6 Rbd3 Bf5 Nbc4 Nb6 Bb1 Na4 Nb6 Bg3 Na8 Be6 R5d4 Ba2 Rd5 Bf4 Bc2 Bb1 Red4 Bg3 Rf5 Nb3 Rc3 Rc4 Rf6 Bd8 Bh7 Na5 Rcd3 Bde7 Re4 Rb4 Qf3 Nb3 h1N Na5 Qe3 Kg2 Qf4 Nf3 Qd6 Bh2 Ng3 Ne5 Rff4 Rf3 Qh6 Rf2 Ree3 Rf3 Rfe4 Rf4 Rf3
3K4/bPQqn2r/Rr1bb1r1/3N3n/1Bn3R1/r3bR2/rkB1bB1N/4B1q1 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 b4 Kf6 h4 Ke5 c4 d5 c5 g5 h5 a5 f3 d3+ Ke3 a3 h6 a4 h7 d2 b5 d4+ Ke2 a2 c6 e3 Kd3 a3 Kc4 d3 Kc5 e2 b6 e1B b7 g3 c7 g2 Kb6 Kd4 f4 e5 f5 g4 f6 g3 f7 e4 Nc3 e3 Nh3 g1Q Qf3 d1B Qg2 d2 Qh2 e2 Nf4 g2 Qg3 Nd7+ Kc6 Ndf6 Rh4 Ne7+ Kb6 Be6 Rh2 Nh5 Nb1 Qd7 c8R Bf2 Nd5 e1B Bd3 Be3 Rc3 Be2 Qc7 d1N Bd2 B1f2 Bc2 Nb2 Be1 Ra4 Nd2 Rb4+ Ka5 Rb3 Nf1 Nc4+ Ka6 Rb5 Ka7 Rb6 Kb8 Qh1 Rh3 g1R Rf3 Rg6 Nh2 Qg1 Rb3 Bh3 Rb4 Be6 Rc1 a1R Ra4 a2 Ra6 Bfh6+ f8B Bhf4 Rb1 Bd6 Rb4 Rd1 Rba4 a1R Rb4 Rd3 Rba4 Rhg8 h8B+ R8g7 Rb4 Ra2 Rba4 Ke4 Rb4 Rh7 Bd4 Na3 Bc5+ Ke5 Rg4 Nc4 Bcb4 Rda3 Bh6 Bd4 Bg5 Bfe3 Bgh4 Bc5 Be4 Kd4 Bhg3 Na5 Bgf2 Kc4 Bf5+ Kb3 Bc2+ Kb2 Re4 Bg3 Rg4 Nc4 Qf4 Qe8+ Kc7 Qf7 Kd8 Bcd4 Qb8 Bd6 Qc8 Nf5 Nf6 Rc6 Qb8 Ba7 Qc8 Rb6 Nd5 Qc7+ Ke8 Qc6+ Kd8 Ne7 Qc7 Qd7+
K3Bnb1/br2qN2/2RQ1nN1/B2b4/b1rR3q/4Rrr1/BB1P2n1/4rkq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kc6 a4 Kd5 e4+ Kd4 h5 b5 a5 c5 a6 g5 e5 f5 e6 c3 h6 b3 a7 f3 e7 b4 e8R g3+ Ke1 f2+ Ke2 f4 Kf3 b2 h7 g4+ Kg2 c2 Rh6 f3+ Kh1 b3 Rh5 c4 Rha5 c3 Qe2 g2+ Kh2 Bc5 Kg3 Bd7 Kf4 g3 R1a2 Ba4 Qe1 Nf6 Qe7 Nbd7 Bc4 f1N Bb5 f2 Qe1 Rf8 h8B Qe7 Qd1 Rc8 a8B Ba7 Bbc6 Kd3 Ne2 g1R Qe1 g2 Rc5 Ne3 Na3 b1R Nc4 f1B Bb2 c1R Nd6 c2 Qg3 Re1 Nf7 c1Q Rd8 Rc7 Ra3 Qc4+ Kf3 Qd4 Qd6 Rbc1 Bb5+ Rc4 Bd5 Qh4 Rc6 Rb7 Bc3 b2 Ba5+ Bb3 Bg7 b1B Ba4 Bc2 Nf4+ Kd4 Ng6 Kd3 Bc3 Ba2 Bb5 Ba4 Ba5+ Kc2 Rd3 Kd1 Rd4 Bd3 Re8 Bf5 Be6 Bg4+ Kf4 Ke2 Bd5 Kf1 Be6 Nb8 Ke5 Bf3 Bh8 Rh1 Bg7 g1Q Bh8 Rh3 Bg7 Ne4 Bf6 Ng2 Kd5 Rg3 Nfe5 Rb6 Rc7 Qg7 Bf7 Nd7 Rd3 Rb4+ Bc4 R6b5+ Kc6 Bb6 Kb7 Ba7+ Ka8 Rb7 Rcc8 Qgh7 Re6 Qg7 Be8 Qe7 Rc6 Rf7 Bb3 Nf8 Bh8 Be2 Re3 Rff3 Rf6 Rd4 Rf4 Bc4 Bg7 Bg8 Nf7 Rdb4 Bb2 Nf6 Be6 Bc4 Rd4 Bcb3 Bf5 Be6 Bb1 Bd5 Ba2 Rc4
3b1Qq1/NqB1Rb2/1r6/1q2nrb1/NR1q2nk/3RnP2/1r1r4/1RN1Kq1B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 c4 Kf6 a4 e5 c5 h5 a5 d5 c6 b5 a6 e3 c7 Kg5 a7 d3 Qe2 h3 Nc3 h2 Bh3 d4 Kf1 b3 Ne4+ Kh4 g5 d2 g6 d1R+ Qe1 b2 g7 b1R Bd2 b4 Ra3 d3 Rb3 e2+ Kg2 Nh6 g8N Nc6 Bd7 Be7 Bh3 Qd4 Bf5 Rb8 a8R Be6 c8R Bf7 Be6 Bg5 Rf8 Ng4 Rc3 b3 Ra1 b2 Ba2 Rb6 Nd6 e4 Re8 e3 Nh6 Rf8 Qf1 e1Q Nc8 e2 Na7 Nce5 Bf4 Rd2 Re7 Qd1 Ra3 e1B Ne2 Qb3 Nc1 Qe6 Rb3 Qg6 Rb4 Qg8 Rc7 Bd8 Bd5 Bg5 Rg1 Bd8 Ra3 Bg5 Qe2 h1Q+ Kf1 Qf3 Re7 Qfe4 Be6 Qb7 f3 Bf2 Bh2 Bfe3 Ke1 Bef4 Qe4 Bf6 Qf5 B4g5 Rc7 Bd8 Re7 Ra1 Bc4 b1Q Qc8 Raa2 Nf5+ Kh3 Bf4 h4 Ng3 Rdb2 Ne2 d2+ Kd1 Qf5 Rd3 Qfd7 Nc3 Qb5 Ke2 d1N+ Ke1 Ne3 Na4 Rd2 Bh2 Rab2 Rh1 Bg6 Rf1 Rf5 Qc5 Bf7 Bg3 Nd7 Bc7 Nde5 Qd6 Kg3 Qh6 h3 Qf8 h2 Be6 h1Q Bc8 Rf4 Bd7 Nh2 Bh3 Kh4 Bg2 Nhg4 Rg1 Qh3 Bh1 Rf5 Ne2 Nh2 Kf2 Be6 Rb1 Nhg4+ Ke1 Bf7 Nc1 Qf1#
K3qRNN/2r3bn/1rb1n3/Nk1r4/3PB2N/2rRBnr1/Q4R1n/1q1b3q w - - 0 1 illegal: No possible last move
R1qrn1Q1/6bn/1n1BBq2/1q2b2R/n1P2n1R/1B1R1N2/1rN2r2/2rb1k1K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 h4 Ke5 a4 Ke4 c4 b5 a5 f5 e3 g5 h5 d5 a6 b3 h6 b2 h7 f3+ Kh2 f4 a7 b4 Bd2 b3 Ra2 d3 Na3 b1Q Be1 b2 Nb5 f2 Qc1 f3 Nc7 d2 Ra5 d1N Ra4 d4 Be2 f1Q Nd5 f2 Rb4 d3 Ne7 d2 Rb6 Nd7 Rd6 Rb8 a8R Ngf6 Nc6 Nb6 Na7 Nc3 Nb5 d1R Qd2 Nca4 Nh3 Rc1 Na7 Ne8 Rd3 Bg7 Rg1 g3+ Kh1 g4 Nf4 g2+ Kh2 Bb7 Qb4 Qc8 Rh1 g1N Qf8 Nh3 Ne6 Ng5 Bb4 Rg8 h8R Nh7 Bd6 Bc6 Rg1 g3+ Kh1 Bb5 Bd1 g2+ Kh2 Bd7 Nd4 Bg4 Bb3 Bd1 Nac6 Rb7 Rh1 g1B+ Kg3 Rf7 Rh5 Rf6 Nc2 Bh2+ Kh4 Kf3 e4+ Ke2 e5 Rf3 e6 Bhe5 Qf7 Rf8 Qg8 R3f7 Kg4 Rd7 e7 Rd8+ Kh4 Rf7 Na3 Rf4+ Kg3 Ke1 Kh2 Ke2 Rg3 Qbf5 Nc2 b1R Rd3 Rb2 Rh4 Qf6 Rh5 Qe1 Kg2 f1N Kh1 Qb4 N6d4+ Kf2 Rh4 Qb5 Nf3 Ne3 Rh5 Kf1 Rh4 Nc7 e8B Ng2 Bf7 Ne8 Bd5 Rf5 Be6 Nf4 Rh5 Rg5 Rh4 Rg2 Rh5 Rf2 Rh4 Nf8 R8h5 Nh7
2q1R3/Knb1bb1Q/r2r2BP/1qR1b1N1/qB4n1/qrn1N3/2BN3k/q3B3 w - - 0 1 illegal: No possible last move, all moves rejected
1b6/2N3Bn/b2qBBP1/4q2k/N4q1r/rn2r3/R1n1qNr1/RQNqb1K1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 a4 Kg6 c4 h5 f4 b5 Kf2 e5 a5 d5 a6 h3 c5 e3+ Kg3 e4 Kh2 d3 a7 h4 c6 d4 g5 b3 c7 d2 Bb2 b4 Bg2 d3 Qf1 d1Q f5+ Kh5 g6 d2 f6 e2 f7 e1N Qf4 e3 Qc4 e2 Ra3 Na6 Qc1 Nf6 Ra1 Nc2 Be5 e1B Nf3 b2 Bf1 b3 Bc4 Qe2+ Kg1 d1Q Bd6 Nh7 Ra4 Nc5 Ra1 Ba6 Bf4 Bd6 c8N Re8 f8B Re3 B4h6 Bb8 Bf7 Q8d6 Nbd2 b1Q Be6 b2 Rh2 Nb3 Bg5 Qa2 Nd4 b1Q Bfh6 Qa5 Ne4 Qae5 Nb6 Qb2 Rf2 Qf4 Qb1 Qc3 Bf6 h2+ Kh1 Qa5 Bhg7 Qae5 Kg2 h1R Na4 Rh2+ Kg1 h3 Rg2 Q2b5 Ne2 Qc4 Nc1 Qce2 Rf2 Rg2+ Kh1 Rg4 Rg2 h2 Nf2 Rh4 Ra2 Nc5 Rg1 Nb3 Kg2 h1R Rf1 R1h3 Rh1 Bc7 Kg1 Rh8 a8N Bb8 Bf5 Rh2 Bd7 Rc8 Be6 Rc5 Nc7 Ra5 Nb6 Ra3 Na4 Qa1 Bc8 Qc3 Be6 Qce5 Qa1 Ncd4 Ncd3 Qdc2 Qd1 Bc3 Qe1 R2h3 Kg2 Qc1 Rf1 Rh2+ Kg1 Nc2 Qd1 Qd2 Qa1 Qc1 Qb2 Qcd2 Rfa1 Bb4 Qb1 Qc1+ Nd1 Be1 N1f2 Qcd1 Nc1 Rg2+
1B2bnb1/3n1bqP/1B3R1K/q1r5/q1R1B1N1/2n1Nr2/2Bkrbb1/R3rQ2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 b3 a7 e2 f6 e1Q c3 g4 f7 b4 h6 b2 h7 g2 Bh6 e4+ Kc2 d3+ Kb3 d2 Kc2 g3 c4+ Kd4 c5 d5 c6 e3 c7 e2 Bg7+ Ke3 Ra2 b3+ Kc3 d4+ Kc4 d3 Nf3 g1N Ne5 g2 Qc2 d1B Rh2 d2 Rh4 Nf6 Rh6 Nfd7 Kd5 Bc5 Ke6 Re8+ Kf5 Nf8+ Re6 Nbd7 Bh8 Bb7 Qc1 Rc8 Na3 b1B+ Rc2 b2 a8B Ba2 Rf6 b1B Kg5 Be6 Kh6 Bba2 Rb2 Ba4 Qa1 d1Q Rg6 Qa5 Rb1 e1R Ng4+ Kd2 Bd3 Bf2 Be5 Ne2 Bc2 g1R Rf6 Bg2 Bae4 Nc3 Bg3 Rgf1 Nc4+ Ke2 Nce3 Kd2 Bd6 Re2 Bc5 Bc6 Bb6 Rfe1 Bcd3 Qda4 Bc2 Bec4 Rc1 Re5 Qb1 Rf5 Qb5 Rf3 Ra1 Nc5 Qa6 Be8 Qb5 Ncd7 Qb1 Ng6 f8B Bg8 Bd6 Ngf8 Qb5 Baf7 Be5 Ra8 c8R Ra7 Rcc6 Rc7 Rc4 Rc5 Bb8 Qc7 Qc6 Qe5 Qc7 Qd4 Qh2 Qe5 Qh1 Qd4 Qf1 Qe5 Rf4 Qh8 Rf6 Qg7+
1n1Nbr2/RbN3BP/1n1r3Q/2k5/2Bn3K/2q2BrN/1rB1b2R/3qb1rq w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 b5 c4 f5 a4 g5 h5 g3+ Kg2 f3+ Kh3 f2 a5 b3 h6 g2 a6 d3 h7 d2 e5+ Kc5 e6 d5 e7 d4 e8N d3 a7 f4+ Qg4 d1Q Na3 b2 Qd7 b1Q Nc2 b4 Na3 f3 Nc2 b3 Be2 f1B Nd4 b2 Nd6 f2 Ra6 g4+ Kg3 d2 Ra1 Qc7 Ra2 Nf6 Ra6 Rg8 Qf5+ Nd5 Qe6 Nb6 Qe3 Bb7 Kh4 g3 Nh3 g1R Ne8 g2 Rh2 Rg3 Qh6 Qc6 Bd3 Be2 Nc7 f1B Bc2 Qa1 Ra4 b1R Bb2 Qd5 Bc3 Rb2 Nc6 Qf3 Bh8 Qc3 Nd8 Bh5 Ra3 Bfe2 Bg7 Be8 Ra4 Qf1 Ra3 d1R Ra6 Rd6 Ra3 Kb4 c5 Qad1 c6 Kc5 Ra2 N8d7 Ra6 Rc8 a8B Nb8 Bh8 Bg7 Ra7 Bd4 Bg7 Bf2 Nb5 Be1 c7 Ba6 Bc6 Bb7 Bf3 Rh1 Bf6 Bg6 Nf7 Rf8 Nd8 Be8 Bg7 Qg1 Bb3 Qf1 c8B Qg1 Nc7 Qf1 Bc6 g1N Bf5 Qff3 Bfc2 Qf1 Bf7 Nf3+ Kh5 Nd4+ Kh4 Qg2 Bf3 Rg1 Bc4 Qh1
6nB/3nPQq1/R1KRR3/2N5/1b3nB1/2Brbqq1/RNbq2rn/1k2r2q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 h7 d3 Ke3 f4+ Kd2 Kd4 e5 f2 e6 f3 c5 g3 c6 b3 c7 b2 a6 g2 a7 b4 Rh2 b3 Ra6 g4 Ra4+ Bb4+ Nc3 b1R e7 g3 Ra3 b2 Qe2 Qf8 Nh3 g1Q Ra4 g2 Rh1 Bf5 c8R Qg7 Qe1 Nd7 Be2 f1N+ Kd1 d2 Nf2 Ng3 Bc4 Ne2 Rh4+ Nf4 Rc6 Rd8 Nfe4 f2 Kc2 f1N Kb3 Nh2 Qe2 d1Q+ Qc2 Qg3 a8R Qdf3 Bd2 Re1 Ra2 b1Q+ Ka4 Qa1 Kb5 Qh1 Be2 g1B Rb6 Be3 Nc5 Bg6 Qb1 Bc2 Kc6 Qb2 Bd1 Kc4 N3a4 Qbg7 Rh5 d4+ Rd5 d3 Bc3 d2 Qc1 Rg1 Raa6 Re1 Ne6 Kb3 Nb2 Qe2 Qa1 Qef3 Be2 d1Q Qb1 Qe4 Bg4 Qd2 Qd1 Qed3 Qf3 Qe4 Qf2 Qef3 Qf1 Bb1 Qf2 Kc2 Nc5 Kc1 Qf1 Bc2 Qf2 Kb1 Qf1 Nh6 Qc4 Rhf8 h8B Ng8 Qf1 Rf5 Qc4 Re5 Qb3 Re4 Rd6 Re2 Qf7 Rg2 Nba4 Ndf6 Re6 Rd3 Nb2 Nd7 Kb7 Bf2 Rbd6 Re1+ Kc7 Nd5+ Kb7 Be3 Kc6 Nf4+
1q1K1n2/1B2N1bb/2rn3k/2B2b1r/1BnR1RQ1/2bP4/B2n2r1/1b1bNN1n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 e4 c5 h4 f5 e5 Kf7 e6+ Kg7 e7 c3 e8N+ Kh6 h5 c4 a5 g3+ Kf3 b3 a6 g2 a7 b4 Qc2 g4+ Ke2 g3 Kf3 b2 Na3 b1B Nc7 b3 Nd5 b2 Nb6 Nd7 Nb5 Bg7 Nc7 Ne7 Nbd5 Nf8 Ne2 g1R Nb5 g2 Qe4 c2 Nbd4 c3 Kf2 f3 Kg3 f4+ Kh4 f2 Ng3 f3 Nde2 Nf5+ Kg4 Nd6+ Kf4 Rb8 a8B Rb6 Ra4 Rc6 Nd4 Bf5 Bc4 f1N Ba2 f2 Ne7 Ne3 Bb7 f1B Rh4 Qb8 Nf3 Be2 Ne1 Bd1 Rd4 Nec4 Rg4 Rh1 Rh4 g1N Nf1 Rh2 Qf3 Rg2 Qg4 Kh7 Kg5 Ne2 h6 Ng3 Rh3 Nh1 Rf3 Rc8 Rff4 Rc6 Bb3 Ba2 d3 b1B Ba3 c1N Bc5 c2 Ba4 Nb3 Bb5 Na3 Bc4 Nd2 Be6 Bd5 Bf7 Bde4 Ba2 c1B Bb4 Ng6 Bc5 Nac4 Bb4 Bf8 Kf6 Bb2 Bc5 Bc3 Bb4 Nc8+ Kf7 Bg7 Bc5 Nf8 Ke8 Qa7 Kd8 N8d6 Nd5 Kg8 h7+ Kf7 Ne7 Kf6 Qf3 Kg5 Qg4+ Kh6 Bb4 Rg8 h8B Bh7 Ba5 Bef5 Bb4 Rh2 Bc5 Rh5 Bb4 Be5 Bf6 Rg6 Bh4 Bg7 Bf2 Rgg5 Rde4 Rg6 Bfc5 Rgg5 Rd4 Rg6 Qh3 Rg2 Qg4 Qb8+
R4B1n/bb3R2/5Q1N/k1N1b1rK/r2b1b2/1qRN1R1P/1n2b1b1/2q2nnB w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 d5 c4 Kd7 f4 Kc7 a4 Kb6 c5+ Ka5 h3 e5 f5 b5 c6 g5 c7 b3 f6 g3 f7 g2 Ra2 b4 Nf3 g1B Nfd2 d3+ Ke1 g4 Nf3 d4 Ra3 e3 Nfd2 b2 Rh2 g3 Be2 e4 Nf1 b3 Rf2 g2 Qc2 d2+ Kd1 Rh5 Bc4 Na6 Ke2 d1N Bd3 Qg5 Nbd2 b1Q Qc4 b2 Ra2 Ne7 Ra3 Nc5 Rf5 Bb7 c8N Ng6 Re5 Bg7 f8R Nh8 Re6 Be5 Re7 Nb3 Nf3 Nd2 Ng3 Nf1 Qc6 Qg8 Rb3 Rg5 Rc3 Qb3 Qf6 Ra7 Bd2 Qc1 Nf5 b1B Ncd6 Nb2 Ref7 Bgh2 Nh6 Bhf4 Bc4 Bc2 Bd5 Bd1+ Ke1 e2 Kf2 g1N Ne1 d3 Be3 d2 Bc5 Bc2 Nd3 d1B Ba3 Rh5 Kg2 e3 Ne4 e1B Nec5 e2 Be4 Bh4 Bc6 e1B Be4 Ne2 Kf3 Bhf2 Kg4 Bfd4 Bc6 Bed2 Bh1 Rg5+ Kh4 Rg6 Kh5 B2e3 Rg8 Rg2 Rg3 Ng1+ Rf3 Rg3 Ne4 Ra8 Bf8 Ba7 Nec5 B3d4 Qe7 Be2 Qh4 Kb6 a5+ Kb5 a6 Ka5 Qf6 Rg6 Nf2 Bce4 Nfd3 Rg4 Rf2 Bg2 Rf3 Bb6 a7 Rg5+ Kh4 Rc8 a8R+ Ba7 Na6 Rc4 Nac5 Rg7 Kh5 Ra4 Qh4 Rg8 Qf6 Rg5+
bkr1b1rb/6N1/3r1N1Q/PrqbR3/4r3/BRbnqb2/1R3n1R/1BK4B w - - 0 1 illegal: No possible last move
B1bb1rnk/1KbqqR2/1PrQq3/Bn2Rq2/4N1B1/1b4R1/1b1N3B/1b5q w - - 0 1 illegal: No possible last move
2nB2Rq/rRN3bQ/nrr2nb1/2q3kN/KnN5/2q5/1P1Nn2R/rB4n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 g4 Kf6 c4 d5 Kc2 a5 e4 h5 e5+ Kg5 c5 f5 c6 h3 e6 d3+ Kc3 a3 Kb3 a4+ Ka2 d2 e7 f3 e8R f2 c7 h4 Re1 h2 Qc2 h3 Qc4 d4 Re3 d1N Rg3+ f4 Rf3 d3 Re3 d2 Re4 f3 Qc3 Qd3 Ne2 Ne3 Ng1 d1R Bd2 Na6 Re6 Ne7 Qb3 Rc1 Rb6 Qc3 Qb5+ Bf5 c8N Bg7 Qc5 Rh6 Na7 Nc8 Rb5 Rb6 Bd3 f1Q Qb4 f2 Be1 Nd5 Qe7+ Nf6 Nd2 Qe2 Nc4 f1N Qd7 Qe7 Bb1 Qc5 Rb3 Rc2 Nb5 Ra7 Nc7 Ng3 Rb4 Ne2 Nf3+ Kh6 Nfd2 Kg5 Rg1 h1Q Qd3 h2 Bh4+ Kg6 Rg2 Ng1 g5 Kh5 Re2 Bg6 Re8 Qa8 Rg8 h1N Qf5 Ng3 Qd7 Rd6 Rb7 Rb6 Qh3 N3e2 Qf5 Be8 Qh7+ Kg4 g6 Qb8 Bg3 Kg5 Be5 Bh6 g7 Bg6 Bd6 Rc1 Be7 Rc2 Re8 Rc1 g8N Bg7 Bd8 Rc2 Nd5 Qbe5 Nc7 Qed4 Qh3 Qh4 Rf8 Qh8 Qh7 Q5d4 Ne7 Qb4 Na5 Rcc6 Bf5 Qbc5 Nac4 Nh3 Rh1 Nhg1 Rg8 Qe3 Rh2 Qg3 Kb1 a2+ Kc2 a3 Ned5 Qh3 Nf4 a1N+ Kb1 Qc3 Ka2 Nc2 Nh5 Qg3 Bd3 Ncb4+ Kb3 a2 Ka4 Qge3 Be4 Qc3 Bb1 a1R+
qN1N1kN1/2n5/2nR3q/2r4B/B1b1n1nr/1K1P2nr/1nRBr1Qb/4B1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 g5 e4 f5 h4 c5 e5 b5 d3 c3 h5 c4 e6 c2 Kd2 g3 e7 g4 h6 f3 a5 c3+ Ke3 f2 a6 g2 a7 b3 h7 b4 Ba3 c1Q+ Qd2 g3 Ke2 c2 Ke3 f4+ Ke4 f3 Ke5 b2 Qg5 b3 Be2 f1N Rh5 f2 Nc3 b1N Nh3 g1Q Rh4 b2 Ke4 g2 Nb5 Nfd2+ Ke3 Nc6 Qd5 Be6 Rh6 Nf6 Nd4 Nc3 Ng5 b1N Nf7 Nce4 Bh5 Nbc3 Bb4 Nb5 Ra2 f1N+ Ke2 Rc8 a8B Nc4 Be1 Nb2 Rg6 Qa5 Nd8 Ng4 Bb7 Bf7 Rd6 Qh6 Ba6 Nc7 Bb5 c1R Ba4 Rc2+ Bd2 Nc4 Kd1 Nfg3+ Be1 Re2 Rc2 Qa8 Qg5 Rg8 h8B Nb2+ Kc1 Rg6 Kb1 Re6 Ka2 Rf6+ Qd5 Rf4 Kb3 Rf3 Bf6 Bg7 Bg5 Be5 Bgd2 Rf4 Rg6 Bg8 N8e6 Kf7 e8N Bd6 Nd8+ Kf8 Nf6 Be5 Ka3 Be6 Qa2 Bc4 Ng8 Na7 Qa1 Na6 Bc1 Ne3 Ba5 Qh1 Rg5 g1R Bd7 Ngf5 Rg6 Rh4 Rd6 Ng4 N4c6 Rg3 Nb8 Rgh3 Ba4 Rc5 Be3 Bh2 Qf1 Qg1 Qg2 Nfg3 Be1 Nc7 B3d2 Bb5 Ka2 Nc6 Kb3 Bc4+
1BN1K1R1/5Rb1/b1n2Q2/8/qb2r1NP/r2nnnq1/r1rBR2r/1kr1RB2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Ke6 f4 Kf5 a4 b5 h3 e5 a5 d5 a6 g5 a7 d3+ Ke3 d4+ Kf2 g3+ Kg2 e3 Kf3 b3 c5 d2 c6 e2 c7 e1N+ Ke2 Ke4 f5 b2 f6 g4 f7 g2 Ra6 b4 Ra1 d3+ Kf2 b3 Kg3 Qd6 Na3 b1R Nc4 b2 Ne2 g1N Nd4 Nf6 Nc2 Bg7 f8B Nc6 Bg2+ Ngf3 Na5 Nd5 Bf1 Ba6 c8R Ne3 Ra2 Ra1 Be2 b1R Na3 Rb2 N3c4 Rc2 Bf1 Rh7 Qe2 d1R Nb6 d2 Nac4 Nd3 Qf2 Re1 Rc7 d1Q Nc8 Rh4 Rb2 Ra3 Rf7 Kd4 Rg1 e4+ Ne5 Kc3 Ra2 Qb8 Bd6 Rh5 Bd2+ Kb3 Ra1 Kb2 Ra2+ Kb1 Bc7 Qb3 Bb8 Re2 Rh1 Rh6 Rg1 Re6 h4 Qa4 Qe1 Rh2 Qf2 Qe1 Rh1 Nb2 Kf4 g3 Ng4 g2 Qg3 g1R Qf2 Nfd4 Kg5 Nd3 Qf4 Qg3 Qf6 Nf3+ Kg6 Re7 Be2 Rgc1 Re1 Nd1 Bf1 e3 Rf8 Re4 Kf7 e2 Rg8 Nde5+ Ke8 Ne3 Rb2+ Ka1 Rb7 Ka2 Re7 Kb1 Rf7 Nd3+ Be5 Rb8 a8R Rbb2 Raa7 Rba2 Rae7 Rf4 Bb8 Rb4 Rd1 e1B Re5 Nd5 Re2 Ne3 Bc3 Rc4 Ba5 Bb4 Rde1 Bc5 Bc3 Bb4 Bd2 Re4+
2R3r1/rq1K1NRN/2n3bn/qRB1P1n1/1N2R2Q/1b6/1n1nnb1b/2q3kB w - - 0 1 illegal: No possible last move, all moves rejected
bB1rq3/B2B1kPr/2Qrnqn1/2R2b1b/1b2N3/4Rb1N/K2nb2N/B2r4 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 c5 f4 h5 a4 e5 d4 b5 Kd2 c3+ Kc2 e3 Kb3 h3 f5 e4 g5 h4 g6 c4+ Ka2 e2 a5 e1Q a6 e3 a7 c2 d5 h2 d6 b3+ Ka3 b2 g7 e2 f6 b4+ Ka2 c3 d7+ Kf7 Qd4 h3 Qh4 Ba6 Bf4 c1R Be5 c2 Bg3 Ne7 Qh5+ Ng6 Be5 Rd1 Qf3 c1R Bg2 Rd6 Bc3 Nc6 Nd2 Rh7 Ne4 Rcd1 Rc1 Nd4 Rc2 Qe8 d8B Qf2 Bb6 Rad8 a8N e1N Nc7 Ne6 Ba7 Be2 Nd5 Be7 Ne3 b1B+ Kb3 Qh4 Ng4 Ba2+ Kb2 b3 Be5 Qg5 Rc5 Bb1 Ka3 b2 Bc3 Bbd3 Ka2 Qh6 Bd4 Ba6 Qc3 Nf3 Qc4 Bf8 Qa4 Qf4 Qc6 Nd2 Bf1 Bf3 Bb5 b1B+ Kb2 Bd3 Ka2 Bde2 Ba1 Bc8 Bb8 Rd5 Bae5 Nc7 Qb7 Ke6 f7 Qf6 Qa8 Bf1 Nd6 Be4 Rc3 Rd3 Rc2 Bf3 Ba1 Rd4 Qa4 Ba8 Ne4 Bb4 f8B Kf7 Be7 Bf5 Bc5 Ne6 Bd7 Rd6 Bca7 Bd3 Rc5 Bb5 Ne2 Bd3 Rf1 h1B Rf3 h2 Nf4 Be2 Re3 Bg2 Qb5 h1B Qc6 Bh3 Nh2 Bhg4 Nh3 Bh5 Nf3 Bg2 Nh2 Bgf3
B3q1k1/P1n2b2/4Qb1r/5rb1/nr1RB1n1/1nNN3q/K1b1nRN1/BN3n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 Kf7 c4 g5 Kc2 b5 Kb3 d3 a4 f3 h5 g3 a5 g4 c5 d4 e5 g2 a6 f2 c6 d2 c7 g3 a7 d3 h6 f4 h7 f3 Kb2 b3 Rh2 b4 Ne2 g1N Qe1 d1B Bh3 f1Q Be3 d2 Nc1 g2 Qh4 f2 Ra2 Bc2 Bh6 d1N+ Ka1 Nf6 Ra3 b2+ Ka2 Na6 Bd7 Ng4 Nc3 b1R Qh3 Be7 Bg7 Ne2 Nd3 g1B Bf5 Nb2 Ra4 Bf6 Be4 Qe8 Qh6 Bb7 c8N Nc7 Ne7 Qh3 Ned5 f1N Rf2 Bh2 Qe3 Bf4 Qb6 Rf8 h8N+ Kg8 e6 B4g5 e7 Rf7 Qe6 b3+ Ka3 Bc6 Rd4 Na4 Ng6 b2 Ka2 Rd8 Bh8 Rd6 Nh4 Bd7 Ng2 Bc8 Qf5 Be6 Qe5 Rf8 Bg7 Bf7 Qe6 Rb6 Bh8 Rb4 Bg7 Rd1 Nb1 Rd2 Ndc3 Rd1 Na3 b1N Bh8 Nbd2 Nab1 Nb3 Bg7 Qb8 e8B Qd8 B8c6 Qe8 Nc1 Rd3 Ba8 Rf3 Nd3 Rf5 Na3 Kh7 Nab1 Rh8 Bf8 Kg8 Bh6 Bh4 Bc1 Bhg5 Bb2 Rh5 Ba1 Rh6
3R1NN1/1B1q1R1b/2br2n1/Qn1k1B1r/2RnnR1P/1bB2n2/1b4Kb/nb6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 b5 a4 g5 c4 f5 a5 g3+ Kf3 g2 a6 g4+ Kf2 b3 a7 b2 Nd2 b1B Rh3 g3+ Kf3 d3 Nb3 b4 Be2 d2 Rh1 Nc6 Ra3 Nge7 Rh2 Rh5 Na1 b3 Qe1 d1B Ra4 b2 Qf1 Bb7 Be3 Ng6 Nc2 Bg7 Nh3 g1N+ Kg2 f3+ Kh1 f4 Ra5 f2 Bd2 f3 Ng5 Nd4 Qe1 f1N Ne3 f2 Kg2 Bc6 Rf5 Ngf3 Bc3 N1d2 Ng4 f1N Nf6 N2b3 Ne6 Na1 Rf4 Bb3 Bd3 N1d2 c5+ Ke5 Rh3 d5 Nf8 Qd7 Ng8 Rd8 a8B B1c2 Bb7 b1B Rh1 Bh8 Rf1 Bf6 Nh7 Ke6 e5 Ne4 Bb2 Bg7 Qa5 Bh8 Bc3 Bf6 Kh3 g2 Rf2 g1B Kg2 Bh2 Rf1 Bb5 c6 B5a4 c7 Bc6 c8R Ne2 Rh1 d4 Rf1 Bg7 Qa2 Kd5 e6 Be5 e7 Bh8 Bda6 d3 e8R d2 Bd3 d1N Nf8 Ned4 Qa5+ Nc5 Rb8 Ne6 Bf6 Nc3 Rc1 Qd6 Rc8 Nb5 Qd2 Nge5 Rc7 Qe7 Qe1 Rd6 Rd8 Qe8 Rf7 Qd7 Qa5 Bg7 Be2 Bh7 Bd3 Ng6 Bf5 Ne4 Rc4 Bh8 Bc3 Be5 Bd2 Bb2 Bc3 Ned4
3BRb1n/n3N1b1/3n1r1n/B2q2kr/1b2R3/1P1KN2b/1r5q/NBQ2Nnr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 h4 Kf6 c4 a5 e4 g5 b3 d5 c5 g3 c6 f3 c7 a3 h5 d3 h6 g2 h7 f2 Rh5 g4 Qc2 a2 Nf3 g1Q Re5 a4 Ng5 d4 Qc3 a3 Nh3 g3 Qb2 g2 Qc3 Qh2 Rh5 Ne7 Rg5 Nbc6 Qc4 Ng6 Nf4 Bh3 c8N Qd5 Be2 f1N+ Kd1 d2 Kc2 d1R Qc5 d3+ Kc3 d2 Ne6 Ng3 Rg4 Rh1 Nd4 g1N Nc2 Nf5 Bd3 Nd6 Rh4 d1R Bd2 Rf1 Rf4+ Kg5 e5 f5 e6 Ra6 e7 Na7 e8N Ra4 Rd4+ f4 Nf6 Rf2 Be1 f3 Nd2 Rf1 Ng4 f2 Rb1 a1B+ Rb2 a2 Rb4 Rg8 h8B Ra3 Bd4 Rh8 Rb8 Rh4 Ne7 Rh5 Re8 Nh8 Qc6 Ra4 Bb6 Re4 Bd8 Re3 Kb4 Re2 Rb1 Bd4 Na1 Bc5+ Kc3 Ba3 Rd1 Bc5 Bb1 Ba3 Nc4 Rb2 Rd4 Bc5 Kd3 Ba3 Bea5 Bb4 Nc2 a1B Nge5 Ra2 Ng4 Bac3 Na1 Rc2 Ke3 Rb2 Re4 Bcg7 Nd2 Rc1 Rd4 f1N+ Kd3 Ng3 Ne3 Rf1 Qc1 Rf6 Ndf1 Ngf5 Nc6 Qe6 Ne7 Nh6 Re4 Qd5+
Q3qnN1/1N2qBnb/b2bNr2/1N1Kqq2/1RrR1P2/2B2n2/n4bB1/2n3k1 w - - 0 1 illegal: No possible last move, all moves rejected
1Q3N1r/4PR1B/r2rqq2/1K1bqN2/3Bbr1q/q4R2/N4Bbb/n2B1kn1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 a4 Ke4 h4 d5+ Kb5 f5 c4 g5 e3 b3 h5 b2 a5 f3 a6 f2 a7 f4 c5 d3 h6 d2 h7 g3 c6 g2 c7 f3 Qb3 d1B Bd2 d4 Kb6 d3 Rh6 g4 Ra3 g3 Kb5 Bd6 Ba5 d2 Nh3 g1Q Rh5 g2 Qf7 Be6 c8N Nh6 Rd3 Nd7 Nf4 Qh2 Ne7 g1Q Rc3 Qgg8 Rh3 Ng4 Bb6 Nde5 Rh5 Bd5 Be2 f1Q Rc8 f2 Bc4 Kf3 e4 Ne3 Bd3 Nc2 Nc6 Qdh4 Ba5 Na1 Qe8 Qe6 Nc3 b1B Ng6 Kg2 Na2 Bf3 Nf8 d1R Be1 b6 Ka6 b5 Rf5 b4 Kb5 b3 Ne7 b2 Rc7 Kg1 Rf7 Bg2 Qb8 Nf3 Rc3 Qhe5 Nf5 Bc2 Be2 b1Q+ Rb3 Rd3 Bd1 Qc1 Rc3 Qa3 Rb3 Q5f6 e5 Qe2 Rc3 f1R Bf2+ Kh2 Rb3 Ng1 Rc3 Qe1 Rb3 Rd4 Re3 Bce4 Rf3 Qc8 e6 Bc7 e7 Qce6 Qb6 Kh1 Qb8 Bh2 Be3 Qeg3 Bf2 Qge5 Rg7 Rg8 Rf7 Rg6 h8B Ra4 Qc8 Ra6 Qd8 Rc8 a8B Rh6 Bg7 Rcc6 Qb8 Rh8 Bh6 Rd6 Bhe3 Re1 Bd4 Re3 Rg3 Rf3 Rh3 Rf4 Rf3 Qg7 Bb7 Qgf6 Bc8 Nh3 Ne3 Qeg4 Bf5 Qg8 Rg7 Qgf7 Bh7 Q7e6 Bg3 Kg1 Nf5+ Nf2 Rf7 Kf1 Rc3 Nh3 Bgf2 Ng1 Rh3 Ne2 Rf3 Ng1
b4B1N/n4b1n/rqq3Nq/b3B1rb/1b4b1/1BK1b1PR/Q4R2/N1b2Bk1 w - - 0 1 illegal: No possible last move, all moves rejected
7r/1NqRb1n1/r4R1q/1Kb2n1b/QN1N2k1/5rr1/PNbn3B/nq1B3B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 b5+ Kd3 d5 c4 g5 h5 f3 c5 b3 c6 f2 h6 b4 c7 g3 h7 b2 e3 g4 Nf3 g2 Nc3 b1B+ Qc2 g1B Rh6 g3 e4+ Kg4 e5 f5 e6 g2 e7 b3 e8B f4 Bc6 b2 Re6 Na6 Rd6 Nf6 Nd1 Nb4+ Ke2 d3+ Kd2 d4 Bb5 Nh5 Qc6 Be7 Rd7 Bc2 Nc3 b1Q Qd5 Ng7 Qc6 Ra6 Be2 f1R Na4 Bb7 c8N Qc7 Ncb6 Bf2 Qf6 g1R Nd5 Rg3 Nb2 Bc8 Qc6 Bg1 Nh4+ Rff3 Bd1 Bb7 Nf5 Bc8 Ke1 d2+ Ke2 Bf2 Bc4 Bb7 Qa4 d3+ Kf1 Ba8 Nd4 Bc6 Bb5 Bb7 Bc6 Ba8 Be2 d1N Be3 d2 Bb7 Nc3+ Bd1 Nb5 Ke2 Nd6 Bc6 Ndf5 Bb7 Nc6 Nb4 Na5 Be4 Nb3 Bb7 Be1 Bg1 Bf2 Bh2 Qc1 Be4 Bd5 Rb1 Bf7 Bd5 Bh5 Ra1 Rg8 h8N Qb1 Nf7 Rh8 Be4 Qc1 Rb1 Na1 Nd8 Bg1 Nb7 Be3 Ndc6 B3c5 Nd4 Rc3 Bh1 f3+ Kf1 Rb3 Ne2 f2 Nd4+ Rbf3 Ke2 f1N Rd8 Bb3 Rd7 N1e3 Kd3 Bc2+ Kc3 Nf1+ Kc4 Rd6 Be2 d1Q Kb5 Qh6 Rc1 Qe1 Bd1 Ra6 Rb1 Nd2 Rc1 Bb3 Rc3 Qg1 Re3 Bc2 Re6 Qe1 Rf6 Qg1 Be2 Qc1 Bd1 Qb1
1rNK1R2/BP1NnBqq/4b3/8/1n2R1Bb/6n1/br1R1r1n/qQ1qrB1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 c4 h5 b4 a5 g4 f5 e3 d5 g5 h3 g6 d3 c5 f3 g7 d2 c6 f4 c7 d4 Kb6 a3 b5 h4 Rh2 a2 Qa4 d1R Bg2 Ne7 g8B Na6 Bb3 Be6 Bd2 Re1 Ne2 Qd7 c8B Nb4 Bf1 f2 Rg2 Kf3 e4 d3 e5 h2 Qa3 h1B Ba6 a4 Qb2 a3 Bc4 h3 Nbc3 h2 Be3 d2 Nd5 d1Q Ng3 Rb8+ Bb7 Bg7 Nh5 Bf6 Qb1 Bh4 Nhf6 Rhc8 Bb3 Rc2 Rg8 Bg2 Rf8 h1N Bd4 Bgh3 Be3 Bf7 e6 Rb2 Bbc4 Ng3 Bd4 Nec6 e7 Bhe6 e8R Bg8 Bc5 Qh7 Nd7 Ne7 Kc7 Bgf7 b6 Bg8 Bh3 f1R Bba6 Rff2 Bg4+ Kg2 b7 f3 Ba7 Kh1 N5b6 Bgf7 Nc8 Bg8 Qc1 Bgf7 Rb1 a1Q Kd8 a2 Bf1 Qd4 Bac4 Qdg7 Qd1 Bg8 Rc1 Qab1 Bb3 a1Q Rc2 Qc1 Qd3 Qd1 Rd2 Bgf7 Ba4 Ba2 Bb3 Be6 Qb5 Rg2 Qd3 f2 Qb1 Rh2 Rf4 Rg2 Re4 Rh2 Rf8 Rg2 Bb5 f1N Bd5 Nh2 Bf1 Rf2 Bdc4 Bf5 Bf7 Bfe6
3bB3/n2NR1n1/b3Pb1N/2Bq3n/N5r1/2Rn1r2/2nR1n1r/r1QKNb1k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 c4 Kf6 a4 Kg5 h3 Kh4 c5 Kg3 c6 g5 h4 f5 e5 b5 h5 d5 e6 d3 h6 d4 a5 d2+ Ke2 b3 a6 b2 h7 b4 c7 b3 a7 f3+ Kd3 f2 Ke2 f4 Ra3 f3+ Kd3 Bg7 Qc2 d1N Kd2 d3 Rh4 Nf6 Rh6 Ba6 c8R Ne8 Qc3 Bf6 Rc4 Qd5 Rh5 Nc6 Rca4 Ng7 Qa5 Raf8 a8N Na7 Bg2 f1N+ Ke1 Nf2 Nh3 Kh2 Qd8 g3 Be3 g4 Bh1 g2 Rg5 g1B Nf4 g3 Ne2 g2 Nd4 Ng3 Nc3 b1N Nc2 b2 Bc5 N3h5 Nb6 Rf7 Ra2 Na3 Rg3 b1R+ Kd2 Rc1 Qc8 Ra1 Ne1 Nc2 Nd7 Rff8 R4a3 Bd8 Na4 Rf4 Kc3 d2 Rb3 Rf5 Rb7 Nd3 Qc6 d1N+ Kd2 f2 Ke2 Ncb4 Rd2 Rf3 Qc7 Nc2 Qc8 Rhf8 h8N Bf6 Nf7 Rh8 Qc6 Rf5 Qb5 Ndb4 Ndb6 Qb3 Rd5 Rd8 Nh6 f1B+ Kd2 Bgd4 Bd6 Bde5 Rc3 g1R Rdd3 Rg4 Bc5 Bc7 Bc6 Rf3 Be8 Kh1 Rd4 Rd5 Qe2 Rd6 Qe3 Bcd8 Re7 Rd5 Nd7 Re5 Qf4 Qd5 Rdd3 Ree3 Rd4 Rh3 Qg5 Nf2 Rdd3 Ref3 Qf4 Bg2 Ke2 Rh2 Qc1 Rc4 Rd2 Rg4+ Rc4 Nbd3 Rc3 Ne4 Kd1 Bh3 Bb6 Bf1 Bc5 Nef2+
KB3nb1/qQN2Pr1/4b2k/br4rB/1bb4N/2R2b1b/n1RRR3/rb5N w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Kg7 c4 b5 g4 e5 f4 d5 a5 h5 f5 b3 c5 d3+ Ke3 d4+ Kf2 h3 c6 h4 a6 b4 c7 b2 g5 b3 a7 h2 g6 d2 f6+ Kh6 g7 e3+ Kf3 d3 Ke4 h3 Qc2 d1B Nf3 d2 Bd3 e2 Nd4 e1R+ Ne2 Rh7 Rf1 h1B+ Rf3 h2 Nc3 b1R Qa2 b2 Na4 Nd7 Kd5 e4 Kc6 e3 Nac3 Bb3 Bg6 d1B Nd4 Qe7 Qa6 Rg1 Ra4 Rg5 Qb7 e2 Ne4 e1B Rc3 Bdf3 Ra2 Bc4 Bh5 Bhg2 Bf4 h1B f7 Ngf6 g8R Nd5 Nf2 Rg7 Rc2 Ba5 Re2 Rb8 a8N Bh3 Be5 B1g2 Nh1 Ra1 Bh2 b1B Rad2 Bfe4 Nf3 Bh7 Nh4 Bf3 Rh8 Qa3 Rc2 Bd6 Rd8 Nf8 Bg3 Bce6 c8R Bdb4 Nc7 Nc3+ Rd5 Bfg4 Rdd2 Na2 Bh2 Bg8 Be5 Bc3 Bf4 Bab4 Kb6 Ba5+ Ka7 Bf3 Na6 Bb3 Qb5 Bcb4 R8c3 Bc7 Qd7 Rb7+ Ka8 Bbc4 Bh2 Bd8 Bb8 Rbb5+ Qd5 Qa5 Qb7 Qb6 Ra3 Qf2 Rac3 Bda5 Nc7 Qa7+
4qq2/1b2RBB1/BrbR2bn/1r3k2/2BR1n1K/1bP1p1rN/1n1q2Q1/5Nb1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 f4 Ke6 Kf2 d5 a4 b5 g5 h5 a5 e3+ Kg2 h3+ Kg3 b3 g6 h4+ Kg4 b2 a6 h2 g7 b4 c3 b3 a7 d3 Na3 b1R Nh3 b2 Be2 d4 Nb5 d2 Nf2 d3 Qf1 d1N Ra2 h3 Ne4 d2 Kg5 Bb7 Ned6 Nh6 Qg2 Rg8 Re1 h1B Nc8 h2 Ra6+ Nc6 Nbd6 Ne5 Bf1 e2 Kh4 Qe8 Ne4+ Kf5 Nf2 Rb8 a8B Nd3 Rd6 e5 Nb6 e4 Nc4 Bc6 Nh3 Rb5 Rd4 Bc5 Bb7 Rb6 Rd6 Bg1 Ba6 Qf8 Rd4 Ba4 Rd6 Bb3 Rd4 Ra1 Rd6 b1B Rd4 Ra5 Ne3+ Kf6 f5 Rab5 Ba3 Nf4 Bb4 Ke5 f6 Nb2 f7 d1Q Be7 Ke6 Bf6 Qd2 Rd1 Qd8 f8R e1Q+ Qg3 Bg2 Rf7 h1B Rfd7 Qf8 Bc4+ Rd5 Nf1 Kf5 Rc7 Rdb5 Re7 Qee2 Qh2 e3 Bf7 Bb7 Qg2 Qf3 Bc4 Qc6 Bf7 Qce8 Rd6 Rh8 g8B Rh7 Bc4 Rg7 Bgf7 Rg3 Bg7 Bd3 Qh2 Bhc6 Qg2 Be2 Rd4 Bh5 Rd6 Bg6 Rd4 Qe2 Rd6 Qf2 R1d4 Qd2
2rb2Q1/5N2/3RnnqB/nqpBb1P1/2b2r2/2kqNrN1/Kq3N2/4Rq1B w - - 0 1 illegal: No possible last move
r4Nb1/7B/1k3pPB/2q1R1n1/1K2B3/NBRrqqr1/1Q1rn2b/1nr1b2N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 Kc6 g4 h5 d4 b5 Kd2 b3 Kc3 h3 d5+ Kb6 e5 c5 g5 h2 d6 f3 g6 b4+ Kd2 b2 d7 c3+ Kd3 c4+ Kd4 c2 e6 f6 e7 c3 Kc4 f2 e8B b3 Qe1 h4 Bd2 c1B Qe7 h3 Qe1 c2 Bh6 Qc7+ Kd3 Bd2 d8N c1R Bf7 Bd6 Qe6 Nc6 Qc4 Be1 Qh4 Be6 Qh5 Nd4 Ra3 Ne2 Qe5 Qc5 Qd4 Bd5 Ne6 Bg3 Bg2 f1Q Be4 Qf2 Nf8 Rh7 Be6 Rd7 Qc3 Rc2 Bf7 Be6+ Bd5 Qce3+ Kc4 Rd2 Kb4 Bf4 Bc4 R7d3 a5+ Kc6 a6 Kb6 Bg7 Nh6 Bg8 Nf7 a7 Ng5 Bh7 Bg8 Bh6 Qff3 Ra5 Qc6 Na3 b1R Rf5 b2 Bb3 Rc1 Re5 b1N Qb2 Qc8 Nf3 Qc6 Nh4 Rcc3 Rf1 h1Q Nf5 h2 Ng3 Qhf3 Nh1 Qc8 Rg1 Rc1 Rg3 Qf5 Nf2 h1R Rh3 Rf1 Nh1 Bh2 Rg3 Rg1 Rh3 Rad8 a8B Rg3 Be4 Ra8 Rc5 Ng1 Rc3 Ne2 Rh5 Nh3 Rg5 Qc8 Ra5 Ng5 Re5 Qcc5+
b4bKn/Nk3bR1/pr1r2q1/r1BN4/q5Q1/PN1RBq1R/2n1nr2/r2N4 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 g5 d6 Bd3 dxe5 Bf5 e4 Bg4 hxg4 Ke2 Kd7 h4 Kc6 d4 e5 b4 f5 h5 e3 d5+ Kb7 h6 c5 b5 f3+ Ke1 f4 d6 e4 d7 e2 Kf2 e1R g6 c3 a3 c4 h7 c2 g7 c3 b6 Qf6 d8B Na6 Nh3 Bd7 Be3 c1N Qc2 Nb4 Bd2 Ne7 g8R Rd1 Rh2 Ng6 Be3 Be8 Bc5 Ne2 Ng5 Rd6 Qb3 c2 Qc4 c1R Nh3 Nc2 Nd2 a6 Qb4 Rb8 Nb3 Rb1 Ra2 Ra1 Rg7+ Qf7 Bf6 Rg8 Bc3 Nh8 Bd2 Qd7 Rb2 Ra2 Bde3 g3+ Kf1 g2+ Kf2 g1R Rb1 Ra1 Rd1 Rg5 Rd3 Rf5 Qc4 Rf7 Qe6 Qc6 Qg4 Qa4 Rg5 Rgg6 Rh1 Rf5 Rh2 Rgf6 Rg7+ Nf7 h8N Rfd5 Bcd4 Ra5 Ng6 Rff5 Ne7 Nh8 Bc5 Rff6 Nd5+ Rf7 Bc1 e3+ Kf1 f2 Kg2 f1B+ Kf3 Be7 Bd2 Bf8 Nf2 Bh3 Nd1 Bf1 Qh5 Bg2+ Kg4 f3+ Kg5 f2 Rh3 f1Q Qg4 Qf3 Kh5 Nc1 Kg5 e2 Bde3 e1Q Kh5 Ne2 Kg5 Rdd7 Kh6 Qeg3 Kh7 Rd6 Kg8 Bh1 Qc4 Qg6 Qg4 Rc8 Qg2 Rcc6 Qg4 Kb8 b7 Rb6 Nd4 Ka7 b8N Kb7 Nb3 Qf1 Ne7 Rf2 Nbc6 Be4 Na7 Qh1 Bh6 Qf3 Bf4 Kb8 Bc1 Ba8 B1e3 Kb7 Nd5+ Bf7+
1N3R2/4N2P/q1nB2rQ/3BKb2/1Nb1R2B/B1k3r1/1pq2bb1/1bqrn1n1 w - - 0 1 illegal: No proof kernel
5qrB/P2bqRq1/7K/2b5/1n4p1/nk3qRB/r1RBbN1Q/q2R1Nnr w - - 0 1 illegal: No possible last move, all moves rejected
2bR1q2/n1nNbRBk/1BQBBn1n/3R1n2/1P3pr1/2r3n1/Nn6/Kr3q2 w - - 0 1 illegal: No possible last move, all moves rejected
1B2n3/b1Rq1K2/k1n2NRN/b2b1r1P/1Bqq3N/1B2rq2/2qp2Nq/3Q3q w - - 0 1 illegal: No possible last move
1K5N/4rq2/n3Nq1P/n1q2q1Q/r1bp2R1/2qB2BR/3RNb2/k1q1qn1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 Kg3 f2 e5 d3 a6 Kd4 c5 d2 c6 b3 a7 f4+ Kh2 b4 e6 b2 e7 g3+ Kg2 b3 Kf3 g4+ Ke2 g2 e8N g3 Kf3 Ne7 c7 Rh7 Ba6 f1N Rh4 Nec6 Ra5 Qf6 Ng7 Bc5 Bb7 Be6 c8R Na6 Rb5 Na5 Na3 Kc3 Rh3 b1Q Nc4 b2 Rd8 Bf2 Rb4 Qa1 Nd6 b1Q Nf7 Qbf5 Nh8 Bg8 Qe2 d1Q Ne6 Qe1 Bc6 Rf7 Bb5 Re7 Bd3 Bf7 Rc4+ Kb3 Qd1+ Ka2 Ne2 g1Q Bb2 g2 Be5 Qac3 Bc7 Rb8 a8R Rb4 Rab8 Ra4 Rb1 Bg8 Be5 Qf7 Rc1 Q5f6 Kg4 f3 Bg3 Ba7 Rd7 Qc5 Rd4 g1Q Rd8 Bh7 Rg8 Bf5+ Kf4 f2 Rg4 Bh7+ Bf5 Bg8 Rb1 Qg5+ Ke5 Qgc1 Bg6 Qh1 Bd3 Qhf3 Rb3 Ka1 Rh1 Q5c4 Kd6 Q3f6 Bb1 Qb5 Rd2 Be3 Bc2 d4 Bd3 Qbc4 Rb5 Qc8 Rbh5 Q8c4 R5h3 Q4b4+ Kd5 Qbc5+ Ke4 Q3c4 Ng1 Qb6 Rgh4 Qc3 Kd5 Q7g7 Qh5 Nh2 Rg4 f1Q Ne2 Qb5+ Kd6 Q1f5 Be5 Bf2 Bg3 Qh4 Ng5 Bc4 Ne6 Qgf7 Be5 Nf1 Bh2 Nb3 Bg3 Qba5 Kc6 Qhf6 Kd6 Qae5+ Kc6 Na5+ Kb6 Nc7 Ka7 Qc5+ Kb8 Na6+
1K4B1/2R2b1p/1bq5/2bqnNr1/k3BqbB/2nbNb2/4P2R/2rN1NbQ w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 c5 d4 f5 g4 b3 g5 h3 a3 c3 d5 h2 d6 c4 g6 b2 d7 f3 g7 f2 Be3 f4 Ra2 f3 Qc1 c2 Ba7 c3 Qd1 c1B Be3 c2 Ke6 Ne7 Kd6 Ka4 g8N b5 Ba7 b4 Bh3 f1B Qe1 b3 Ra1 f2 Nf3 Bg2 Nh6 f1Q Nf5 Nbc6 Bf2 Be3 Nfd2 c1B Bh4 Bg1 Ne3 Ra5 Be6 Rg5 Bg8 Ne5 Ra2 Qe8 Kc7 Qf4 d8N Nd5+ Kb8 Bg4 Ndf1 Qc6 Nf7 Nc3 Nh6 Bc5 Nhf5 B2f3 Ra1 Bd2 Qc1 Be1 Qd1 Bef2 Qc1 Kb5 a4+ Kb4 a5 Qd5 Nbd2 b1B a6 b2 a7 Ba2 a8B b1B Nd1 Ka4 Nf1e3 Bd3 Ndf1 Qc6 Rb1 Bf7 Rb7 Qd5 Rc7 Bb6 Ng2 Bfc5 Nge3 Bf2 Rg1 h1Q Rg2 Bg1 Rf2 Qd6 Be4 Qd5 Bg3 Qh6 Rh2 Qhc6 Bh4 Be8 Bf7 Rf8 Bg8 Bf7+ Rc8 Rd8 Qb1 Rd7 Qc1 Ra7 Rc7 Ra5 Qb1 Rb5 Qc1 Rb1 Nf2 Be7 Nd2 Bec5 Qf1 Rc1 Nfd1 Bf2 Qh1 Bg1 Ndf1 Kb4 Bf2 Ka5 Bh4 Ka4
Qn1q2R1/5p2/3B1B2/nn1qn1RB/Kq1bPRn1/3bk3/n2N3B/rNr4n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Kd7 h4 Kd6 a4 Ke5 d3 Kd4 Kd2 c5 Kc2 g5 a5 b5 h5 g3 a6 g4 h6 c3 Kb3 c2 h7 g2 a7 c4+ Kb2 b3 Qe2 f3 Ra5 c3+ Ka1 g3 Rh4 f2 Qe1 b4 Ra4 b2+ Ka2 Bc5 Kb3 Nf6 Rh5 Ng4 Nh3 g1N Bh6 c1N+ Kc2 g2 Ra5 Nf3 Bf4 g1Q Bc7 Na2 Kb3 c2 Ka4 c1N Rf5 b3 Ng5 Nfe5 Rf4 Ba6 Be2 f1N Nf3+ Ke3 d4 Ng3 d5 Bd3 d6 Bd4 d7 Nh1 Bd6 Re8 Qg3 Qd1 h8B Rf8 Bf6 Qd2 Na3 b1N Qh4 b2 Qh8 Nb3 Qg8 Nec6 Rg5 Nce5 Bd1 Na5 Qh8 Qc3 Nd2 Qc5 Bf3 Qd5 Bd1 Qe7 d8B Rg8 B8c7 Rc8 Bf3 Qd8 Be2 Nh2 Bh5 Nhg4 Nb5 Na3 Nc3 Nb5 Ncb1 Na6 Bb8 Rc1 Bbc7 Rc8 a8R Nb8 Nc3 Ra1 Ncb1 Nbd7 Bb8 Rc2 Bbc7 Rc1 Rc8 Nb8 Qe8 Qe7 Qc6 Qd7 Rcg8 Qd8 Qa8 Nbd7 Nc3 b1Q Bb8 Qb2 Ncb1 Qc3 Bbc7 Nb8 Rff5 Na6 Bc5 Nec6 Bh2 Nab8 Bcd6 Nce5 Rf4 Qb4+
b5bR/r1q1Brk1/1p3nB1/1NQ3n1/4rnPN/BKb5/1R2Bn1R/1n1b2b1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 g4 h5 a4 d5 c4 e5 Kc2 b6 f4 h3 a5 h4 c5 h2 f5 b3+ Kb2 e3 c6 e2 a6 e1B a7 d3 f6 e4 c7 e3 Bh3 e2 Qc2 d2 Bf1 d1R Qc6 d4 Qc4+ Be6 c8R h3 Na3 d3 Rc7+ Nd7 Qe4 Nh6 Nb1 Bc5 Rb7 Rf8 Ra3 Qc7 Nf3 Bg1 Ra5 Bc3+ Ka3 e1N Re5 d2 Qd5 b2 Nh4 Nd3 Be2 Re1 Rb8 Nf4 Kb3 Kg8 f7+ Kg7 Na3 b1N Nb5 Nf6 Bd1 Re4 Ba3 Nf5 Be2 Nd4+ Ka4 Nf3+ Kb3 Ng5 Be7 Bf5 Qc5 Bh7 Rc8 Bg8 Rd8 Rb8 a8B Rb7 Rb8 Ra7 Bc6 Rc8 Be8 Rd8 Rd5 Rd7 f8B+ Kh8 Bd6 Rf7 Bfe7 Kh7 Rd4 Kg7 Rb4 Be3 Rf1 h1N Rf2 h2 Rg2 Nf2 Rc8 h1B Rh2 Re6 Rd8 Ba8 Rb8 Rf8 Bg6 Rf7 Rf8 Re4 Rb8 Bh7 Rh8 Bed4 Kc4 Bg8 Rb2 Nh1 Kb3 Bg1 Qd4 Nf2 Ba3 Qd6 Qb4 Qc7 Qc5 d1B+
1q2n1r1/2b1R1Q1/p2b2Kb/1N3r1R/P3N3/3b1R2/nNBn1Bk1/1nRrn1b1 w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 h5 c4 hxg4 c5 b6 Qd3 bxc5 Qd2 cxd4 Qd1 d3 Kd2 Ke7 h4 Ke6 b4 Kf5 a4 Ke4 h5 f5 h6 g5 e3 d5 h7 c5 b5 a6 b6 c4 b7 c3+ Ke1 d2+ Kf2 c2 Qe2 d1R Ra3 g3+ Kg2 g4 Qe1 d4 Qb4 Nf6 Qe1 d3 Rc3 d2 Bc4 f3+ Kf1 g2+ Kf2 f4 Bg8 Ne8 Bf7 Nc6 b8R Bf5 Rb4+ Nd4 Ne2 Rg8 h8R Qb8 Qg1 Bd6 Na3 Bc7 Bb2 c1B Rb7 Nc2 R8h5 Ne1 Nb5 Rg5 Ra3 Bg6 Rb3 Rf5 Bd4 Ba3 Nc1 Bad6 Nd3 Bh7 Qh2 Bg6 Qg3 g1B+ Kf1 f2 Ke2 f1N Nb2 Bh7 Bg6 Bf2 Qg1 g3 Bc5 g2 Bb6 Ke5 e4 Bfc5 Re3 f3+ Kf2 Kf4 e5 Bf8 e6 Bh6 e7 B5d6 Ra7 Ng3 Rc3 Ne2 R1h3 Ke4 Rc1 Nc3 Bd4 Na2 Bc5 Ke5 Kg3 Ke4+ Kh4 f2 Rf3 f1N Bf2 Be5 Qh2 g1B Qg3 Bed6 Qg2 Bg8 Bh7 Bc4 Qg7 Bd3 Rc6 Ra1 Rc1 d1N Rb7 Nd2 Bg6 Nf6 e8N Ndc3 Bh7 Ncb1 Bg6 Bdf4 Ra7 Bcd6 Re7+ Bfe5 Rg3 Bc7 Ned6+ Kf4 Ne4 Ne8 Rhg5 Bed6 Kh5 Bc4 Rgc3 Bd3 Bh7 Kf3 Kg6 Ba3 Rh5 Bad6 Bg8 Kg2 Bb3 Bc4 Rf3 Bd3 Rc4 Nbc3 Rc5 Rd1 Rc6 Ncb1 Rc1 Qd8 Bc2 Qc8 Rh4 Qb8 Rh5 Qb6 Na3 Nf6 Bb3 Rg8 Nb5 Ne8 Bc2 Qb8
N2B2n1/1bp1bPnQ/1NR5/6rN/KR2nr2/br4Nb/q3B1k1/nnB2b2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 d4 Ke6 Kd2 Kd5 Kc2 h5 a4 b5 f4 e5 g5 h3 f5 h2 g6 c3 Kb3 c2 g7 h4 a5 e3 a6 Ke4 a7 h3 d5 e2 d6 e1R f6 Nc6 f7 Be7 d7 Rb8 a8N Nd4+ Ka2 b3+ Kb2 b4 Ra7 Rh5 Bc4 Ne6 Ra6 Rg5 Ra4 Rf1 Bd2 c1B+ Ka1 b2+ Ka2 Rf4 Ne2 Kf3 Kb3 e4 Nb6 e3 Rg1 h1N Ng3+ e2 Ra1 h2 Ra6 Nf2 Be3 h1B Na3 b1B Qe1 Bd3 Bd2 Ne4 Ka4 b3 Na8 b2 Rc6 b1N Ba6 Rb7 Nc4 Rb3 Ncb6 Bca3 Bc1 Bb7 Qd1 Bg2 Qc2 e1N Bb5 Qb8 d8B Bdf1 Be2+ Kf2 Qd3 Nc2 Rh1 Na1 Rh4 Bh3 Rg4 Nh6 g8N Kg2 Nf6 Ng7 Nfh5 Ng8 Rh4 Qc8 Qc2 Qd7 Rg4 Qd2 Qd3 Qa2 Qc2 Ned2+ Qe4+ Rff3 Qh7 Rf2 Rgc4 Ne4 Rb4 Rf4
k1K2qnB/1RnbNB2/1B4q1/n1b3R1/4qNBQ/4n1R1/p1P1nn2/2r2br1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 Kd3 d5 e4 Kd7 g4 Kc7 b4 Kb7 b5 f5 b6 h5 g5 h3 g6 f3 g7 h4 e5 h2 e6 a3 e7 h3 e8R f4 Qe1 a4 Qe3 a2 Qf2 a3 Nd2 Bc5 Qe2 f2 Bb2 f3 Nb1 Qf6 Re4 Bd7 Bc1 Be8 Re3 Na6 Bg2 f1Q Nd2 f2 Nb1 Nc7 Nc3 Qg6+ Be4 Rh5 Rf3 Rg5 Rb1 a1N Be3 Nb3 Bf5 Na5 Rg3 a2 Rb2 Rd8 Rb5 Ka8 b7+ Ka7 b8B+ Ka8 Rb7 Rg4 Kd2 d3 Qe1 d4 Nge2 Rg5 Rhg1 h1Q Ba7 h2 Nd5 Qe4 Bb6 h1N Ne7 Rd6 Nf4 Rg4 Kc1 d2+ Kb2 d3 Kc3 Rd8 Bd4 d1N+ Kd2 Rg5 Bg4 Ne3 Kc3 d2 Be5 Rd4 Bf6 Rb4 R1g2 Rb1 Bd4 Nf6 g8B Rc1 Bf7 Ng8 Bh8 d1N+ Kd2 Nb2 Kc3 Nd3 Rg1 Qe2 R1g2 f1B Rg1 Ndf2 R1g2 Bd4+ Kb4 Q2f3 Rg1 Nh3 R1g2 Ng1 Qf2 Ne2 Rg1 Be5+ Kc5 Bf6+ Kd6 Bd4+ Ne6 Qff6 Qh2 Nf2 Qh4 Qfg7 R1g2 Qf8 Rg1 Qgf5 Nf4 Qg6+ Bfe6 Bf7 Kd7 Be8+ Kc8 Bc5 Bf7 Rh5 Qg5 Rh1 R1g2 Rg1 Qh4 Re1 Bf3 Ra1 Rg5 Rb1 Bg4 Rc1 Rg3 Bd7+
2R2B2/3N1NKb/R3r2B/nbNq1b1B/Q2r3N/1Pbq3k/2r3p1/2nn1bb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 c4 g5 e4 d5 c5 f5 h3 a5 b3 d3 c6 g3 c7 a3 Be3 g2 Ba7 d4 Bb6 f3 Bc5 a4 Nd2 g4 Ba7 a2 Rb1 a1Q Bc5 a3 Ba7 f4 Bb6 g3 Rc1 f2 Ne2 g1B Ba5 f3 Bc3 a2 Bb4 g2 Bc5 Na6 Nf4 Ne7 Kf6 Nb4 e5 Bf5 c8N Ra4 e6 Qb1 Nb6 a1R Nd7 Nec6+ e7 Na5 Ne4 d2 Be2 f1B Rc4 f2 Bh5 Qa8 e8N d3 N8d6 Qd5 Nf7 Na2 Qe2 Bh6 Bf8 d1B Rc8 d2 Qa6 Rd4 Nec5 Bdc2 Ng6+ Kg3 h4 d1N Rh2 Bd2 Kg7 Nc1 Qb5 Bc3 Qa4 Bb5 Rh1 Bh2 Re1 f1B Re6 Bg1 Ra6 Bc6 Be2 Kh2 h5 Bb5 h6 Ra2 h7 Kh3 Bh5 Bce4 Nh4 Rc2 Kf6 Rg8 h8B Bh7 Bhg7 Bef5 Bh6 Rg7 Nd6 Re7 Nf7 Re6+ Kg7 Rb2 Nd6 Qd3 Nf7 Rc2
1b3n1n/1BBb1q1R/2bN3r/1b1N4/2RR1p1P/1nQRN3/q3k2K/brq3b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 a4 Ke5 h4 Ke4 c4 f5 a5 b5 e3 d5 c5 g5 c6 f3+ Kh2 b3 c7 b4 a6 f4 a7 d3 Ne2 b2 Bh3 d4 Re1 f2 Ra5 Kf3 e4 f1B e5 g3+ Kh1 g2+ Kg1 g4 e6 d2 e7 d3 e8R b3 Rc5 Bd6 Rf5 Bd7 c8N Rh6 Rd5 Qf6 Rf8 Qf7 Rc5 Ne7 Rc2 Ng6 Rc7 Nh8 Nbc3 b1Q Ba3 b2 Qc1 d1Q Rg8 d2 Rc5 Qba2 Ng3 b1N Qb2 Qc1 Rd1 Bfb5 Nd5 Be5 Qc2 Ba1 Nf5 Ke2 Ncd6 Bbc6 Kh2 g1B+ Kh1 g3 Rd8 Bf2 Rc4 g2+ Kh2 Bb6 Qb2 Bc7 Nfe3 Bb5 Qc3 g1B+ Kh1 Bdc6 Bc8 Nd7 Bb7 Rb8 a8R Nf8 Ra7 Bd7 Bc5 Bdc6 Bb6 Bd7 Rf1 d1B Rf3 Bda4 Kg2 Nd2 Rh3 Bf2 Kh2 Nb3 Ba5 Rc8 Rf3 Bb8 Rg3 Rc6 Bc7 Rb6 Rf3 Bdc6 Rd7 Qf6 Rh7 Qf7 Rd4 Bd7 Ra5 Bbc6 Rc5 Rb5 Rcc4 Rb4 Nd1 Bab5 Rfd3 Be3 Kh1 Bg1 Ne3 Nd2 Kg2 Rb1 Kh1 Nb3 Kg2 Bf2 Kh2 Bg1+
7r/4R3/NK1bb3/4B1qq/P1NpBr2/qb1QR2R/2Rqnk1q/1nBrq3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 a4 f5 h4 d5 c4 g5 c5 f3 e3 f2 c6 f4 c7 d3 h5 b3 h6 f3 h7 d2 Na3 b2 Qb3 d1Q Rb1 g3 Qc3 g2 Nh3 g1Q Nc4 g4 Qe1 g3 Qe2 g2 Nf4 Nf6 Kb6 Bd6 Ra1 b1B Nd3 Bc2 Rh5 Bb3 Nb4 Be6 Ba3 Qh2 Na2 g1Q Rh6 Nc6 Na5 Nd4 Rh3 Qg5 Qd2 Ne2 Bg2 f1Q Qc3 Qfe1 Bf1 f2 Bc1 d4 Nb4 Qe7 c8R Qdd2 Rc4 Raf8 Na6 Qed1 Ra3 Nd5+ Ka7 Rf3 Bg2 f1Q Bh1 Qfe1 Qd3+ Ke5 e4 Kf4 e5 b5+ Rc7 b4 Nc4 Ndc3 Kb6 Nb1 Rc5 Rf2 Be4 Rf1 Re3 Rf3 Rc7 Kg3 Rc5 Kf2 Rc8 Bg8 e6 Rf4 Rh3 Qf8 e7 Be6 e8R Bc2 Bd5 b3 Be4 b2 Rc3 Bb3 Re7 Qf7 Rce8 Qfh5 Rc2 Qc3 Rd7 Qdd2 Rde7 Rg8 h8B Qb4+ Kc6 Qa3 Be5 Rh8 Kb6 Nbc3 Rh7 b1R Ree7 Ra1 Re3 Nb1 Rh6 Qe8 Rh4 Qeh5 Rhh3 Nbc3 Bb2 Rd1 Bc1 Nb1
1q3B1k/Nr3Q1b/R1N2n2/1r2b1P1/Bb1r4/1B1pN2R/r2n1r2/rqqNK3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Kg7 c4 b5 a4 d5 a5 e5 g5 h5 c5 b3 c6 d3 f5 d4 a6 e3 c7 b4 a7 e2 Ra3 h3 Bd2 e4 Bf4 d2+ Kf2 e1B+ Ke2 e3 Bd6 h2 Bg3 b2 Rc3 b3 Bh4 Nf6 Nh3 Bg3 Nf4 Bb4 Nd3 Rf8 Rc2 Kh8 Bg2 Nc6 Nf2 Be5 Na3 b1R Bg3 h4 Qf1 d1R Bd5 h3 Nc4 Na5 Ra2 b2 Be6 Ba6 c8N Nb3 Bd5 Bb7 Ra6 Nd2 Bc6 Rf7 Ba4 Be4 Bb3 Rb8 a8B Rbb7 Na7 Qb8 Ba4 Rb5 Bd5 Rfb7 Bf7 Ra1 Bf4 b1Q Be6 Nd5 f6 Bh7 f7 Ra2 f8N Nf6 Bd5 Qc1 Ne6 Qb1 Nd8 Qc1 Rg1 h1R Ndc6 h2 Rg3 Rg1 Rh3 h1Q Bg8 Qe4 Bg3 Qeb1 Bh2 Rg2 Bg3 Bc7 Bd6 Rh2 Bf8 Be5 Na3 Rg2 Bgb3 Rh2 Nc2 Rg2 Qh1 Rh2 Qe4 Rg2 Qg6 Rh2 Kd3 e2 Qf5 e1R Qg6 Reh1 Ke2 Rhg1 Qf7 Rg4 Ne3 Rf1 Ng2 Ra1 Nd1 Rf2+ Ke1 d3 Ne3 Rd4 Rg3 Ra5 Bb5 R5a2 B5a4 Rhh4 Rh3 Rd5 Nc2 Rdb5 Ne3 Rd4
2n2N2/Bn1N2qn/2Rr1r2/nbBR1PB1/7Q/2b2p2/3qrqB1/NK3nkn w - - 0 1 illegal: No proof kernel
RQ1bB3/1K1Nr3/1nN3R1/qPbq2b1/2bn3B/bnqk4/2bp2BN/3B2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 h4 g5 b4 d3 c4 g3 c5 d2 e3 f3 c6 g4 h5 f2 c7 a3 h6 a2 h7 a4 b5 a3 Nc3 g2 Rh2 g3 Nge2 g1B Nf4 g2 Ne4 Nc6 Ng6 Nd4 Nf4 Ne7+ Kd6 Rg8 h8N Ra7 Qb3 d1Q Kc5 d5 Bd3 f1Q Kb6 Qfe1 Qb1 Qc3 Qb4 f6 Rb1 a1B Qc5 a2 Nh5 Bb2 Bf1 a1N Qd6 Nab3 Nf2 Ba3 Rh4 Bh6 Ra1 Bg5 Ng4 Ke4 Ng6 f5 N6e5 f4 Nc6 f3 Nh2+ Bg4 Rh3 f2 Rg3 Bf5 Bd2 Qa8 c8B Rg6 Be2 f1B Bb7 Nc8+ Kc7 Qe1 Bd1 Nb6 Nf6+ Kd3 e4+ B1e3 e5 g1B e6 Qg8 Nd7 Bd8+ Kb8 Rg7 Rg2 Beg5 e7 Qa5 Bc1 Qec3 e8B Be2 Nf8 Bf2 Ba8 Rae7 Nd7 Bh6 Nce5+ Ke4 Ng6 Nc6+ Kb7 d4 Nh4 d3 Bg6 Qab4 N4f3 Bc5 Bg5 d2 Ka6 Bc1 Qb8 Bc4 Be8 Bb2 Ra4 Ba3 Nfe5 Kd4 Bf6 Bc2 Bh4 Ke3 Rg1 Ncd4 Be4 Rg5 Nc6 Qd5 Kb7 Rgg7 Bef3 Kd3 Ra8 Qa5 Bh1 Re1 Rg2 Rg1 Rg6 Re7 Bg2 Bg5
Q1n1b1bK/1Pr3NR/7q/1N2k3/B1bNq3/Nqb3bn/2p1r1n1/1R2RbB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 h5 b4 c5+ Kc3 a5 g4 h3 d4 h4 e4 h2 b5 f3 g5 a3 b6 a4 b7 f2 g6 a2 g7 f4 d5 f3 Ne2 a3 Ng3 h3 Rg1 h1B Rg2 h2 Qc2 Nd7 Qb2 Ke5 d6 Qb6 Qb3 Ndf6 d7 Rh7 d8R Bd7 Be3 Nh5 Re8+ Ne7 g8N Nf4 Ne2 Nh3 Qd1 Qb3+ Kd2 c3+ Kd3 c2+ Nbc3 c1Q Rb1 a1N Rg7 a2 Nf6 Nc2 Nd4 a1B Nd5 Ra2 Nb6 Bg2 Be2 f1B Bg1 h1Q Qe1 f2 Nc4+ Kf6 Qd1 Ne3 Na3 Nc8 Re5 Be8 Qe1 Rh8 Rh7 Bd6 Ree7 Bg3 e5+ Kg5 e6 Kf6 Qd1 Bd5 Qd2 Ng2 Qe3 Qa4 Ncb5 Bc3 Qf3+ Ke5 Qf8 Qh6 Qg8 Bd7 Re8 Qb3 e7 Ngf4+ Ke3 c4 Bd1 Rd2 Qf8 Bg8 Bc2 Ng2+ Kf3 Bc6+ Kg4 Re2 Bd1 Qe3 Kh5 Qe4 Kh6 Bd7 Kg7 Qh2 Rh4 Rh6 Bc2 Rc6 Kh8 Rc7 Rh7 Bc6 Rd8 Qh1 e8N Qh2 Ng7 Be8 Qf7 Bd2 Qg6 c3 Qa6 Qh1 Qa8 Qh2 Bd3 c2 Bc4 Qh1 Be6 Bc3 Bd7 Re3 Bc6 Bfc4 Rd6 f1B Rf6 Bfd3 Rff1 Qh2 Rfe1 Bf1 Nd6 Re2 Ba4 Nf2 N6b5 Qh6 Qa6 Nh3 Qa5 Bd7 Qa8 Be8
8/1p4QR/2RNq1rn/rRb1qbr1/B5P1/1K1RB1BN/2n1rrr1/bk2q3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Ke6 c4 Kf5 Kc2 d5 f4 e5 c5 h5 g3 b3+ Kb2 h3 a5 e3 g4+ Ke4 c6 h4 c7 e2 f5 e1Q f6 h2 a6 h3 f7 d3 a7 d4 Be3 d2 Ra4 Rh5 Ra1 d3 Ra3 Qd5 Ra6 Rg5 Na3 Qe6 Bf4 Nc6 Be3 Nd4 Rd6 Nh6 Bf4 Nc2 Rd5 Bc5 Qa1 d1Q f8B d2 Rd8 Qde2 Rd6 d1R Be3 Rd2 Bd4 Kd3 Nb5 e4 Qd1 e3 Kb1 b2 Rd5 Bd7 Ka2 b1R Na3 Rb6 c8R Qe5 Bg7 Rbg6 Rc6 Bf5 Nc4 Re8 a8R Qe6 Ra7 Ra8 Ra4 Ra5 Kb3 Qe5 Ra3 Qe6 Nf3 Qe5 Rg1 h1R Nd6 Rh2 Qa1 Rf2 Rh1 h2 Ng1 Qe6 Nh3 Qe5 Rg1 h1R Bf6 Rhh2 Rh1 Qe6 Bfe5 Rhg2 Rh2 Nb4 Bg3 Ra2 Rh1 Nc2 Rh2 Kd2 Qc3+ Kc1 Rh1 Qe5 Rh2 Qa6 Bb5 e2 Ba4 Kb1 Rh1 Qc1 Be3 e1B Qd4 Bc3 Rh2 Qe1 Rh1 Qe6 Qg7 Qe5 Rh2 Ba1 Rh1 Bb6 Rb5 Ba7 Kc4+ Rb2 Rd3 Bc5 Rh2 Nb4 Rh1 Rbe2 Kb3 Nc2 Nf4 Nf7 Rh7 Nh6 Nh3 Qb6 Rc7 Qc6 Rc8 Qce8 Rc6 Q8e6+
2k2qbR/r5b1/1Br3nQ/1q1nb3/2b2b1p/NPnn1R2/1n1N3B/1R2RK1B w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 h5 c4 d5 f4 Kd7 g5 e5 f5 a5 g6 e3 f6 h3 b3 a3 g7 a2 c5 d3 f7 e2 Bb2 a4 Qc1 e4 Kf2 e1B+ Ke3 d2 Ke2 d1N Qh6 d4 Qe3 a3 Qg5 e3 Qf4 h4 Qh2 d3+ Kf3 e2 Bg2 d2 Bd4 Bg3 Bf1 e1N+ Ke2 Nd3 Qg2 h2 Nh3 Na6 Qf2 Ra7 Qg2 Rh6 Qf2 N1b2 Ng1 d1N Qe3 Ne7 g8R Rc6 Qh6 Nab4 Bg2 Ng6 Rh8 Nc3+ Kf1 Bf4 Nf3 Ba6 Nfd2 Bg7 f8B Nbd5 Bd6 Bc4 Rg1 Qc8 Bh1 Qf8 Rg3 Kc8 Rf3 Bge5 Bc7 Bg7 Bb6 Bge5 Bg1 Bg7 Bg2 h1B Bh2 Rf6 c6 Re6 c7 Rc6 Re3 Bge5 Be4 Bf3 Re2 Bg4 Bh1 Be6 Re3 Bg8 Rf3 Ne2 Nc3 Bg7 Re1 a1Q Nb5 a2 Na3 Nec3 Bc5 Qc1 Be3 a1B Bb6 Kb7 c8R Qd1 Re3 Qh5 Rf3 Qe5 Rd8 Qee8 Rd7+ Kc8 Rde7 Qd7 Rb1 Qb7 Re4 Qa6 Re7 Qb5 Ree1 Nca4 Re2 Nd1 Kg1 Bae5 Re1 N1c3 Kf1 Nab2
1RB2R1n/4r3/q1NK4/2Rqpbr1/k2qqbrP/N1r1B1B1/Rn6/1q3Qr1 w - - 0 1 illegal: No possible last move, all moves rejected
1q2Rr2/1b2q3/1n1nr1rk/2p1BP2/N2NBN1n/1R3Q1r/2r2n2/bn1RK1N1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 f4 Kg6 d4 h5 a4 c5 g5 b5 a5 e5 d5 b3 d6 b4 a6 c3 a7 b2 d7 c2 Ne2 e3 Bd2 c1R Bh3 b3 Ra3 e4 Nbc3 b1N Rh2 b2 Na4 Rc2 Nc1 e2 Bf1 h3 Nc3 h4 Kf2 e1R N1e2 e3+ Kg1 Bg7 Rf2 h2+ Kg2 h1N Rb3 Rh6 Ng1 e2 Na4 Ne7 Bc3 Nf5 Be5 Qe7 d8N Bb7+ Nc6 Nd6 f5+ Kh5 g6 h3+ Kf3 h2 Bg2 Nd7 Rf1 Rf8 a8N Nb6 Nc7 Nf2 Ne6 h1R Nf4+ Kg5 Ke3 R1h3+ Bf3 Bf6 g7 Rg6 g8R Kh6 Qd5 Na3 Nd4 b1Q Qe4 Qb2 Qd5 Nb1 Qc6 Rec1 Rd1 e1N Rd2 Rd1 Ke2 Ng2 Be4 Nh4 Qd5 Rf7 Re8 Rf8 Ngf3 Rdh1 Ng1 Re3+ Kf1 Rhh3 Rd1 Bh8 Bg2 Bg7 Qf3 Re4 Bf6 Re6 Be5 Qa3 Ke1 Qb4+ Qc3 Qb5 Be4 Bf6 Ra8 Qbe8 Qf3 Q8d8 Rc8 Qdc7 Rd8 Qb8 Re8 Qh7 Nb5 Ndc4 Bc7 Ba1 Be5 Nd6 Nd4 Qe7
bbN2Rr1/bk4nB/1bq1P1r1/Q7/R1R1b3/r3r1BB/r2p2K1/qR2nN2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc6 c4 g5 a4 b5 h5 f5 a5 d3 a6 d4 e5 b3 e6 b4 c5 d2 a7 f3 h6 f4 h7 d3 Rh6 b2 Qe1 d1Q Rf6 b3 Qd2 Ne7 Rf5 Qd6 Bh3 Bb7 Bf1 Rg8 h8R Nd7 Rh4 Ne5 Rf7 Nf5 Ne2 g3+ Kg1 f2+ Kg2 f3+ Kh1 g2+ Kh2 g1B+ Kh1 g4 Qg5 d2 Rh5 g3 Rh8 Ng7 Nbc3 b1R Ra5 b2 Nd5 Ra1 Ndc3 b1B Bb2 Be4 Nd5 Ra3 Bh3 f1R Ra4 Qa1 Nb6 Re1 Nc8 f2+ Rf3 f1R Kg2 Kc7 c6 Bb6 Bd4 Qc5 Bf2 Bd6 Rh4 Qc4 Rb4 Ra2 Rb1 Qa4 Nf4 Re3 Ne2 Rc1 Rf4 Rcc3 Rg4 Rb8 a8B Rca3 Qh5 Nd7 Qa5 Ne5 Kg1 g2 Rf8 Qc2 Bg3 Nf3+ Kf2 g1B+ Kg2 Bf5 Rc4 Be4 Ra4 Rh8 Kf1 Bh7 Rg8 Re5 Bh2 Nf5 Na7 Qe4 Qa6 Ba5 Re8 Qc4 Bf4 Ng7 Kg2 Rd8 Rg8 Rf8 Bh2 Rf6 Rf8 Rg8 Ng3 Bgc5 Qb5 Ree3 Nf1 Qe4 Bg3 Qc2 Nc8 Ba7 Ne7 B5b6 Qa5 Qc1 Nc8 Be5 Nd6 Bf5 Ne8+ Kc8 c7 Bd5 Bc6 Qc2 Bb5 Ba8 Bd3 Kb7 c8R Beb8 Rc6 Qc4 Be4 Qb5 Rcc4+ Qc6 Bc2 Be4 Bd3 Bd5 Bh7 Rg6 Nd6+ Kc7 Nh2 Be4 Nc8+ Kb7 Nf1 Ne1+
1KB1r2k/1r1rq3/p2BRNR1/qN6/1Pnr1B1b/3b4/2n1bNNr/1b4bQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 f5 e4 Kf7 b4 d5 c4 g5 h4 Kg7 c5 g3+ Kf3 a6 c6 g4+ Kg2 d3 h5 d4 e5 d2 e6 d3 e7 a3 c7 a2 Ba3 Nc6 Qf3 d1R Qf2 d2 Ne2 f3+ Kg1 g2 Kh2 g1B+ Kg3 Na5 Kf4 g3 Ke5 g2 Qd4 f2 Qh4 f4 Nbc3 f3 Bc1 Nf6 Nf4 Nd5 Nb5 Bf5 c8N Bb1 Ncd6 Ne3 Ne4 Nc2 e8N+ Kh7 h6 Qe7+ Kd5 Nc4 Kc6 Bg7 Be2 f1B Nf2 Bf6 Rh3 Ra7 Rg3 Rb7 Qh1 Bh4 Rg6 Rf8 Nf6+ Kh8 h7 Re8 Bd3 Be2 Bf5 Bd3 Bc8 Be2 Bb2 Bd3 Be5 Be2 N2e4 f2 Bd6 f1B Nf2 Bd3 N4d5 Bfe2 Ne3 Bh2 Bf4 g1R Bd6 Rg3 Ng2 Bg1 Bf4 Rh3 Bd6 Rd7 Bf4 Rd4 Bd6 Rh2 Bf4 Qe6+ Kb7 Qe7+ Kb8 Rc1 N6g4 d1R Re6 Kg7 h8B+ Kg8 Bhe5 Kh7 Nf6+ Kh8 N2e4 Rd7 Bd6 Rd2 Bh6 Rf1 Bg5 Rf4 Nf2 Rd4 Bh6 Rd1 Bhf4 Rf1 N2g4 Rf3 Nf2 Rg3 Re4 Rg7 Re6 Rb7+ Ka8 Qf7 N2e4 Bgf2 Ne3 Qf8 Nfg4 Rgd7 Nef6 Qe7 Nfd5 Ne1 Ndf6 Bbc2 Rb1 a1Q Rd1 Nf3 Rg1 Qa5 Rg3 Ne1 Ng2 Bg1 Nf2 Bb1 Rg6 Rbc7 Kb8 Nc2 Bde5 Ra7 Bd6 Rab7+
Qn1n3r/5qPR/1r1rrNn1/N2qk2p/K2N2BR/1R1n2Nr/5n1B/4b2b w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 c4 Ke6 Kc2 b5 Kb3 f5 e4 d5 a4 h5 g4 f3 c5 f2 e5 h3 a5 f4 a6 f3 g5 h2 g6 d3 g7 d2 c6 d4 a7 d3 c7 Ne7 Na3 Nec6 Rb1 Bb7 c8R Qd5+ Nc4 Nd8 Bg2 f1Q Rc5 f2 Qf3 d1N Ra1 d2 Ra4 Nb2 Ra1 d1R Rb1 Nd3 Ka2 b3+ Ka3 b4+ Ka4 b2 Rc7 b3 Ne2 Bb4 Ng3 Be1 Bf4 Rd2 Rc8 Re2 Ra1 b1R Na5 b2 Ra3 Rd1 Rb3 b1R Qe4 Rdd2 Bf3 Rbb2 Rbc3 Rb6 Rb3 Nf7 Rg8 Nd8 Rf8 Re3 Bd1 Rh6 Rh8 Rf6 Rh7 Rh6 Rg1 h1N Rg2 Rde2 Rh2 Rf3 Rh4 Rg6 Nf5 Rh3 Bh2 Rd6 Ng3 Rb2 Rc3 Rbb6 Rb3 Rh6 Qg2 Rf6 Ne2 Kf5 e6 Rh6 e7 Rhe6 Ng3+ Ke5 e8N Qg1 Rb5 f1N Bg4 Ne3 Qf3 Nc4 Nf6 Qf1 Rb3 Nhf2 Qh1 Ne3 Qf3 Nf5 Qh1 Ne7 Qg2 Na6 Qf3 Rb8 a8N Ng6 Nc7 Ra8 Qh1 Nb8 Qg2 Qe2 Nb5 Qef3 Nd4 Qf4 Ng8 Qf7 Nf6 Qc5 Qf1 Bh1 Qg2 Qd5 Qf3 Ra7 Qg2 Rae7 Qf3 Re8 Qg2 Rh8 Qf3 Qc5 Qa8 Qd5
Rb1Bb1q1/7n/3n2rN/2qB1b1k/1K1BR3/3PbR1q/b3R1pr/q1n2Q1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 b5 e4 g5 a4 f5 e5 Kf7 a5 Kg6 a6 c5 a7 g3 e6 g4 e7 g2 e8R g3 Bb2 c3 Qb3 c2 Qa4 c1B Ra3 f3 Bf6 b3 Qb4 c4 Bg7 f2+ Ke2 c3 Ra1 f4 Qe4+ Kh5 Bh6 f3+ Kd1 b4 Qc4 b2 Kc2 b3+ Kd1 Bd7 Ne2 g1Q Bg5 Nh6 Na3 b1B Re7 b2 Rh3 Nf7 Ra2 Nd6 Nb5 Bbf5 Re4 b1B Nbd4 Be8 d3 Qb6 Bd8 Be3 Rb2 Rg8 Qf7+ Rg6 Rd2 Ba2 Kc2 Bfh6 Bg2 Nd7 Bh1 Rc8 a8R f1Q Qf8 f2 Qf6 Bfe6 Nf5 Bhf4 Nh6 Qc5 Qf8 Bf5 Bg2 Bb1+ Kb3 c2 Ka4 c1N Ra2 Qd5 Kb4 Nf6 Rb2 Nh7 Rba2 Rg4 Bf3 g2 Ng3+ Kg6 Rd2 Rc4+ Ka3 Bd4 Re6+ Nf6 Qe7 Ne2 Qc7 Ne4 Qe7 Ba2 Nf7 Qa1 Nh1 f1Q Qd6 Bg3 Qf4 Nc1 Re2 Qff2 Re7 Qh2 Re5 Rc7 Kb4 Ba7 Re7 Bb8 Re6 Nd6 R6e3 Qe6 Bd5 Rg5 Qf3 Bf4 Re4 Qfg1 Qf1 Rd7 Ka4 Qc5 Rf3 Bd2 Ne5+ Kh6 h5 Rg6 Ng4+ Kg5 h6 Be3 h7 Qg8 h8B Rh7+ Bc6 Rh4 Nh6 Kh5 Bg7 Nh7 Bd4 Qa7+ Kb4 Qg3 Be5 Rh2 Bd5 Qh3 Bd4 Qc5+
3k4/1q3RRb/N1Rqn2n/1qbrnnb1/1QB3B1/KbPR3p/3r3b/N3B3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 a4 b5 g4 e5 f4 d5 a5 e3+ Kd3 e2 f5 e1B c3 b3 g5 h3 g6 h2 a6 b4 a7 e4+ Ke2 b2 f6 e3 Kd3 h4 Kc2 d3+ Kb3 d4 g7 h3 Ka4 e2 Bd2 b3 Bf4 d2 Bd6 d3 Qc2 d1N Nf3 d2 Qh7 Nc6 Bf4 Bh4 Ng1 e1B Bc4 Ne3 Qd3 d1B Qd4 Bg5 Bd6 Bg3 Nd2 b1N Ngf3 b2+ Nb3 Rh5 Nd2 Ne5 Ne4 Bf5 Nc5 Na3 Na6 Nh6 g8R b1Q Rg7 Nac2 f7+ Kd7 Ra3 Bh7 Na1 Nef5 Qb6 Qb2 Qb4 Ncd4+ Rb3 Qb1 Ka3 Ne6 Bb8 Bc5 f8R+ Qe7 Rff7 Kd8 Rb2 Bb3 Rd1+ Qd7 Rd3 h1Q Bd6 Rc8 a8B Bh2 Bf3 Rc6 Bb8 Rd6 Bg4 Qhb7 Rf2 Qdc6 Rc7 Qcb5 Rc6 Qd1 Rf1 Ne7 Rff7 Nef5 Rf3 Rd2 Bd6 Qg1 Rd3 Qd4 Bb8 Qd6 Ba7 Bf2 Be3 Bfg1 Bf4 Be3 Bg3 Bc5 Be1 Rh4 Bf3 Rd4 Bg4 Rd5
rR1NqR2/r1R2B2/1N1r3q/knQbr1B1/qp2R3/4PN2/n1r3K1/bn2n3 w - - 0 1 illegal: No possible last move, all moves rejected
2Qb1Nr1/qqRN4/2B5/nn2N1p1/B1r1bR2/2b1R1P1/1KNn1n1k/2n2br1 w - - 0 1 illegal: No extended proof kernel
N1R3r1/1q3R2/2Q1bqn1/B1qb1P2/5BBq/1K1p1q2/1br1Nb1N/1k1n1rB1 w - - 0 1 illegal: No possible last move
r6B/q3N2b/1R1b3K/r2b1p1b/Bn1RN1rq/2B2nNk/4P1rB/2r2n1Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 d4 Ke6 h4 Kf5 a4 g5 a5 b5 d5 c5 a6 f3 Ke3 c3 d6 c4 d7 f2 a7 g3 h5 Kg4 h6 b3 h7 b2 Ra3 c2 Rd3 b4 Rh3 c3 Qe1 b3 Bd2 c1R Rh5 c2 Rh3 g2 Rh1 Bd6 Rh5 Na6 Rh6 Nf6 Nc3 b1B Qd1 b2 Qe1 Ba2 Rh2 b1B Ne4 Rg8 h8B Nh7 Ng3 Nb4 Bdc3 Bd5 Nh3 g1R Bg2 f6 Be4 Rg2 Qh1 Kh4 Rd1 g4 Rd4 Ng5 Bg6 Nf3 Be8 Bf7 Ke4 Bb7+ Kf5 Qe7 d8B f1N Ba4 Bh5 Ba5 Bd5 Bc7 Rd1 Bb8 Rd3 Bc7 Re3 Bb8 Re5+ Kf4 c1R Bc7 Rad8 a8N Bh7 Nb6 Ra8 Nc8 Qd8 Ne7 f5 Ne4 g3 Bb8 Rf2 Bc7 g2 Ng3 g1Q Bb8 Qg2 Ng5+ Qh3 N5e4 Qa5 Rg2 Qa7 Rg1 Rg2 Bc7 Ne3 Rgd1 Rg7 R1d2 Nf1 Rb2 Qh2 Bb8 Kh3 Rb3 Nc2 Rb6 Nb4 Ng6 Ng1 Kg5 Nf3+ Kh6 Rg8 Ne7 Rg4 Ra6 Bdg8 Rb6 Ra5 Bc7 Bd5 Bg7 Bc5 Bh8 Kh4 Bf4 Bd6 Be3 Rg7 Bf2 Kg4 Be3 Qh4 Bg1 Rgg8 Bh2 Kh3 Rb8 Rg7 Rb6 Rg4
Nr1Q2Rb/K1N3r1/n1B1nBn1/2RNp1R1/1rP2q2/5bNq/kn2nqq1/8 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 f4 Kd5 g4 Kc4 f5 h5 a5 d5 g5 b5 g6 e5 c3 d3+ Ke3 h3 g7 d4+ Kd2 h4 f6 h2 a6 h3 a7 e3+ Ke1 e2 Kd2 e1N f7 b3 Nf3 b2 Qe2 Kb3 c4 b4 Ng5 Qb6 Qe3 Ng2 Ne6 Bb7 Nf4 Bf3 Nc3 b1Q Na2 Na6 Qf2 Ne7 g8R Bg7 f8N Rb8 a8N Rh7 Rh8 Ng6 Rg1 h1Q Ne2 h2 Nd7 N2f4 Rd8 Bh8 Bg2 Ne6 Ng3 Rg7 Nc7 Qc5 Ba3 Qf1 Nb6 Qf8 Qe2 Qf2 Nc3 Qf7 Rg8 Qf4+ Kd1 d2 N3d5 Nd8 Nba8 Ne6 Rb1+ Ka2 Kc2 d1N Qd2 b3+ Kd3+ b2 Be7 Nc3 Bf6 Ne2 Ra1+ Kb3 Ra5 b1R Rc5 Ka3 Qa5+ Kb2 Qb6+ Ka2 Qd6 R1b4 Qd8 Bg4 Bf3 Qhg2 Be4 h1Q Bf3 Qfh6 Ke4 d3 Ne3 d2 Kd5 d1N Kc6 Bh5 Ngf1 Qgg3 Be4 Qgf4 Rg5 Ra4 Ng3 Nb2 Bd5 Qhg2 Be4 Rc8 Kb7 Rb8+ Ka7 Bf3 Bc6 Qhh3 Nd5 Rab4
3q1NB1/1K1b2r1/3N2bb/1nPR4/BB6/2Np1Bb1/q1r2knR/bQn1n1r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 h6 Ke3 h7 b3 e5 d4 e6 b2 e7 b4 e8B b3 Bc4 f3+ Kf1 f2 Kg2 f1R Ra2 f4 Ra4 Nd7 Ra6 Ne5 Nc3 b1Q Nce2 b2 Rhh6 f3+ Kh1 g2+ Kh2 f2 Kg3 Nd3 Qa4 Nf6 Bef7 Ne4+ Kh2 Rg8 h8N Nc3 Kg3 Ne1 Rhf6 Na2 Nf3 g1B Be8 Rg7 Ng6 Bd7 Nfe5 Bh2+ Kh4 d3 Kg5 g3 Qb5 g2 Bg8 g1B Rd6 Bg3 Rd5 Qa1 Qb8 b1N Nf7 Na3 Nd6 Nb5 Ba3 d1B Bb4 Nc1 Nc3 Qa2 Qb6 Rb8 a8B Bh5 Bb7 B1h2 Bc6 Rg1 Ba8 Bc6 Kf5 f1N Ke6 Be5 Rf5 Bhg3 Rf2 Rbb7 Rc2 Rbf7 Rg2 Rf2 Rh2 Rc2 Qb8 Kf3 Bd7 Ne3 Qb7 Be7 Nf8 N3g2 Be8 Kf2 Qb8 Bb7 Bc6 Bg6 Be8 Qda5 Kd7 Bc6+ Kc8 Bg5 Qb6 Bd7+ Kb7 Nc7 Qb5 Bh6 Qb6 Bdf5 Ba4 Bd7 Ba3 Bf6 Qb1 Nb5 Bb4 Qd8 Ne2 Bd4 Rg5 Rd2 Ka6 Ke3 Bf3 Bc3 Rd5 Kf2 Kb7 Ba1 Nc3 Rc2
n3Rrqr/2qnr1Rr/NB2kN2/P4b2/4BR2/1K2bNp1/1b1NQ3/3rqb2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 d5 c4 f5 Kc2 b5 h4 g5 a4 b3+ Kb2 b4 a5 f3 h5 g3 c5 f2 h6 g2 c6 d3 e5 g4 h7 d4 c7 d2 e6 d3 Rh6 g3 Nh3 g1B Rg6 f4 Ra4 f3 Nf4 Na6 Ra2 Nf6 Bg2 f1R Ra4 f2 Bh3 Nd7 Rh6 Re1 Ra2 f1B Qe2 d1R Bf5 d2 Be4 Be3 Nh5 Bg7+ Nf6 Qg8 Rg6 Kd6 e7 Ke6 Ra4 Rb8 Ka1 b2+ Ka2 b3+ Ka3 Ra8 e8N Rb8 Ng4+ Bf6 Rg7 Be5 Ngf6 Rb7 Nc3 b1R Nb5 b2 Kb3 Ra7 Nbd6 Ra1 Nc4 b1Q+ Bb2 Qc1 Bd4 Ra8 Bb6 Bb2 Ne5 Qc6 Nf3 Rac1 Rd4 Rc5 Rb4 Rh5 Ra4 Bb7 c8N Nc7 Ncd6 Bc8 Rb4 Rb8 Nc4 Na8 Ra4 Qc7 Rb4 Qf7 Ra4 Rf8 h8R Rh7 Nd5 Qg8 Nef6 Rb1 Nb4 d1Q+ Nc2 Qd2 Nb4 Rbc1 Na6 Rcd1 Qd3 Re2 Rb4 Qe1 Ncd2 Reh2 Qe2 Rb7 Rg4 Re7 Rg7 Rh3 Bc2 Rb8 Rf4 Rh7 Bb1 Bb7 Bd3 Be4 Bc2 Bf5 Be4 Rbd8 Rgg4 Qg5 Bc6 Rff7 Be4 Rde8 Rg8 Rh8 Rf8 Qg8 Rg6 Rfh7 Rgg4 Ref7 Rg7 Ree7 Re8 Rf8
1r4qb/r1N1R3/nnP1N1p1/b4r1q/B2bR3/N5Kb/1bRB1Q2/k1n1nR2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 Ke6 f4 Kd5 Kf2 e5 a5 b5 a6 g6 a7 d3 c4+ Kd4 h5 d5 h6 d2 f5 g3+ Kg2 b3 h7 b2 c5 e3 f6 e4 c6 b4 f7 b3 Nc3 b1R Qe1 d1Q Ra5 e2 Rh5 b2 Rg5 e3 Ra2 Ba3 f8R Na6 Rf3 Nf6 Rh5 Nd7 Rf7 Nb6 Kf3 g2 Rff5 Qg8 Rf6 Bh3 Qf2 e1B+ Qe2 Rb8 a8N Ra1 Rg5 b1N Bb2 Nd2+ Kf4 Nb3 Rf8 Nc1 Qf3 e2 Na4+ Bc3 Rg4 e1B Ne2+ Kc4 Rf5 Kb3 Nc7 g1B Qf2 d4 Kg3 d3 Nf4 d2 Bb5 Bf6 Bc3 Bb2 Rh4 Qh5 Nfe6 d1N Bd2 Ne3 Nc3 Ng2 Re4 Kc2 Nb1 Kb3 Bh6 Ba5 Na3 Ne1 Bd2 Bfd4 Rf7 Rf8 Rg7 Rf5 Re7 Bg7 Qg2 B1d4 Qf2 Bbc3 Rc2 Bb2 Ba4+ Ka2 Rc3 Qa8 Rf3 Rb8 h8R Bgf6 Rf8 Bg7 Rc3 Bh8 Nab5 Kb1 Rc2 Ra2 Rf6 Ka1 Rff7 Rb7 Rf6 Qg8 Na3 Rb8 Qe3 Rc5 Rf1 Rf5 Qf2 Nc5 Bb5 Bb4 Nb1 Ra7 Na3 Ba5 Ba4 Na6
Rr1b2b1/5nqr/BPb1r1n1/Q2bR2N/3q1B2/N5p1/2BN1N2/nKb2nk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 b4 Kf6 c4 Kg5 Kc2 Kh4 e4 a5 c5 d5 h3 Kg3 h4 Kf2 b5 f5 b6 g5 c6 g3 h5 g2 c7 d3+ Kb2 d4 e5 a3+ Ka2 d2 e6 f3 e7 g4 e8N f4 h6 g3 h7 d3 Rh2 a4 Rh6 Nc6 Rf6 Ne5 Rf7 Bb7 c8B Qd4 Nf6 Ng6 Bb2 Rb8 Be2 Nh6 Qc1 d1B Bd7 d2 Qc3 Bc6 Qb4 Be7 Nh5 Bd8 Rf6 Nf7 Nc3 Bb3+ Kb1 d1B Qb5 a2+ Kc1 a3 Qa5 Bbd5 Re6 B1b3 Re5 Re8 h8N Re6 Bd1 Kf1 Nb5 f2 Bc3 f3 Nh3 g1B Bd2 Kg2 Be3 f1N Bc2 f2 Bc8 Kh1 Bf4 Kg2 Rb1 a1Q Ba6 a2 Na3 Qac3 Rb2 a1N Kb1 Kh1 Re2 Qg7 Ra2 Qcd4 Re4 Nh2 Re5 f1R+ Qe1 Rf3 Qa5 Be3 Nf2+ Kg2 Rf5 Nf1 Re5 Nd6 Nf7 Kg1 Ng5 Nf7 Nge4 Bc1 Nd2 Re3 Bh6 Re4 Bg5 Rh4 Bf4 Rh3 Nf6 Rh7 Nh5 Bbc4 Qa4 Bh1 Bc8 Rf6 Nb5 Nh6 Qb4 Bg8 Ra8 Bhe4 Qa5 Re6 Ba6 Bed5 Na3 Nf7
q1bB2R1/3kn1K1/1p3nB1/qN1q1q2/B2N1QrR/1nb5/PRq3rn/b6B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 e4 g5 c4 d5 h4 b6 h5 f3 Kg3 f2 c5 d3 e5 f4+ Kg2 g3 Kf3 d4 Ke4 g2 e6 b3 Kf5 b2 Kg6 d2 e7 d3 c6 f3 h6 g4 c7 g3 h7 Nd7 Be2 f1Q Qe1 d1Q Bg5 d2 Ba6 f2 Ne2 g1Q Bb7 g2 Bf4 Ra4 Ba8 Ndf6 Bg3 Bg7 Bh2 Qc2+ Be4 d1Q Nbc3 b1N Nd4 Nd2 Qe3 Kd7 Qf4 Nb3 Ncb5 Qdd2 Rd1 Qa5 Rd2 Qfb1 Kf7 Qgd1 Bg6 f1N Re2 Qf5 Rb2 g1B Bg3 Qdd2 Bh4 Qbc2 Rh3 Nh2 Bg5 Ba6 Rh4 Qa8 e8B+ Kc8 Rb1 Ne7 Rb2 Rg8 h8R Bf2 Bc6 Be1 Bh1 Kd7 c8B+ Kd8 Bd7 Bc8 Qe3 Qdd3 Qf4 Bc3 Nc7 Rc4 Ba4 Qde4 Ncb5 Kd7 Bg2 Qec6 Bh1 Qcd5+ Ne6 Be5 Bh7 Nc6 Rb1 Ba1 Qe4 Bh6 Rb2 Nh5+ Bf6 Rg3 Bg6 Rg2 Rg8 Bg7 Qe5 Rcg4 Qf4 Qg5 Bd8 Bc3 Kf8 Nf6 Ned4 Qgf5 Kg7 Ne7
2N1Qr1N/7P/3b1r2/K2qRbq1/nb1b2nk/2BB1BR1/b2Nprq1/3q3B w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kf6 f4 e5 a4 b5 c4 d5 h5 g5 c5 e3+ Kd3 e2 c6 e1R c7 g3 a5 g4 f5 e4+ Kd2 Kg5 a6 d3 a7 d4 h6 g2 h7 g3 f6 b3 f7 b4 Be2 b2 Ra6 b3 Qc2 Bd6 f8N Rf1 Rh4 Nd7 Qc3 Nh6 Qc2 Ng4 Rh2 Rf2 Rh4 e3+ Ke1 Nc5 Nc3 b1Q Rh3 b2 Qa4 Qc2 Nd5 b1B Nb6 Ba2 Ra5 Bf5 Qe8 Na4 Ng6 Rf8 c8B Rf6 Bf3 Qc6 Re5 d2+ Kd1 Rb8 a8B Qe7 Ne2 g1B Nh8 g2 Rg3 Kh4 Nc3 Qcb7 Ne4 e2+ Kc2 Qc6+ Kd3 d1Q+ Bd2 Qb3+ Bc3 Qbd5 Kc2 d3+ Kd2 Qg7 Ba6 Qg5+ Ke1 Rd8 Nd2 Qb7 Nc8 Qbg7 Qd7 Rdf8 Qc6 Bc5 B8b7 Bh2 Qe8 g1B Bh1 Qgg8 Ba8 Qg2 Bf3 Qd5 Nf1 Bd6 Re7 Qg7 Kd2 Bc5 Be5 Nb6 Kc3 d2 Bd3 d1Q Nd2 Rf1 Bd4 Be3 Re4 Rf2 Rh3+ Kg5 Re7 Bhd6 Rg3 Kh4 Re4 Qg5 Re5 Ba3 Bc5 Bb2+ Kb4 Na4 Ka5 Ba3 Bb1 Bd4 Bd3 Qc4 Bb4 Qc5+ Ka6 Qd5 Bc3 Bac5 Ka5 Bb4+
5qb1/QNq2nrP/b1B5/BNK3bq/2B3k1/p1n2RNn/4bR2/1rBn2n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 h4 d5+ Kb5 g5 c4 a5 b4 f3 h5 a3 h6 g3 e4+ Kg4 c5 f5 h7 a2 c6 d3 e5 f4 c7 d2 e6 d4 e7 a4 e8N a3 Qe2 d1N Rh6 g2 Nc3 d3 Rf6 d2 Qe7 f2 Na4 f3 Ne2 g1N Nd6 Ra7 Kb6 Nh6 b5 Nc6 Qf7 Ne7 Nc5 Be6 Ng3 Nh3 Ne2 Nd5+ Kc6 Be7 c8B Qf8 b6 N5c3 Rb1 a1Q Qg7 Nf7 Bg2 f1B b7 f2 Ng1 Ba6 b8B f1B Nb5 Be2 Rb2 Rg8 Bc7 Rb7 Rb3 Qb1 Bf1 Qc2 Rf2 Rb8 Bb7 Bd8 Qh6 Rg7 Ba5 Bf3+ Ne4 Kf4 Nd6 Nd5+ Rc3 Ne5+ Kc5 Nb2 Bd3 Bg8 Kd4 Nf7 Qe6 g4 Bb5 g3 Qd7 g2 Nc5 Bg5 Rb3 Kg3 Ne2+ Kh4 Qc7 g1N Ng3 d1Q+ Rd3 Bg4 Ba8 Qde2 Qa7 Nd1 Rc3 Qf3 Bd3 Rb1 Nb5 Qce2 Kc4 Qe5 Bc6 Qc7 Nb7 Bh5 Bf1 Bg4 Re3 N5c3 Be2 Bc8 Kd4 Qh5 Bc4 Bg4 Rd3 Be2 Rdf3 Qfb8 Kc5 Kg4 Bd2 Qe8 Bc1 Qf8+
RRNbr1K1/Q6P/1rb1N3/B5p1/1n1qbn1B/k1n2b2/6bn/Bq3BRq w - - 0 1 illegal: No proof kernel
KB1B1rR1/5Np1/Rqq1r3/1N2nbb1/5qk1/1nPr4/B2Bb1rb/2N1b2Q w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 f4 Ke6 b4 Kf5 h4 a5 h5 e5 b5 d5 b6 g3 h6 e3+ Kd3 e2 b7 e1B h7 e4+ Ke2 a3 c3 g2 Nd2 a2 Nc4 a4 Bb2 e3 Kf3 a3 Nh3 g1B Qc1 d3 Rh2 d4 Ng5 e2 Rb1 a1Q Rh5 d2 Rh6 d1B Ne5 a2 Ra6 d3 Ne6 d2 Nd3 Nc6 b8B Nf6 Nc7 Bh2 Nb5 Nd7 Ba3 Rg8 h8N Na5 Nf7 Qb6 Be7 Ra7 Bd8 Be7 Rb4 Nb3 Rc4 Ke6 Ke4 Ne5 f5+ Kf6 Kd5 Rf8 Rd4 Qb1 Rh4 a1Q Rh8 Qa4 Rg8 Qf4 Bg2 Qa1 Qb1 Qa5 Nc1 Qaa4 Qa1 Rb7 Be4 Bd7 Bb1 Ra7 Ba2 Ra8 Nh6 Kg5 f6 Bf5 f7 Kh4 Qb1 Bg5 Qe4 Ra7 Qh1 Re7 Ng4 Re6 Nh6 Rfe8 f8B Kg3 Bfe7 Rf8 Nf7 Kg4 Ba7 Beh4 Bc5 e1R Bb8 Re2 Nbd6 Be1 Be3 Qe8 Nb5 Rg2 Bbc7 Qf1 Bb8 Be2 Bf4 Nd4 Be3 d1R Bf4 Rd3 Bd2 Qc7 Rc6 Qf4 Ra6 Ndc6+ Kc5 Qd6+ Kb6 Nd4+ Ka7 Nb3 Kb7 Qb6+ Ka8 Qec6#
3Br2q/3BP3/1R1KR3/1q4r1/NrnQ1nkb/R1rN1bbp/1rn4B/3B2n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Ke6 Ke4 c5 a4 b5 g4 f5+ Kf3 h5 d4 c3 e4 c2 a5 h3 a6 c4 a7 h4 g5 h2 g6 c3 g7 b3 e5 b4 Ra4 b2 Ra2 h3 Ne2 b3 Na3 b1R Nc4 b2 Qd2 Bb7+ Kf2 f3 Kg3 f2 Kf4 Nc6 Nd6 Rh5 Nc4 Nge7 g8R Rg5 Rg1 h1N Ne3 Nd5+ Kf3 f4 Ke4 f3 Ng3 Na5 Nh5 Nf4+ Nd5 Nc4 Be2 f1Q Ra3 f2 Bd1 Be7 Rg6+ Bf6 Rg3 Qh8 Re3 Re8 a8B Qe2 Qd3 f1N Bd2 c1R Rh6 Ba6 Bc6 c2 Nc3 Bb7 Na4 Ba8 Ba5 Bb7 Qc3 Ba8 Bc7 Qd3+ Kf3 Kf5 d5 Nhg3 d6 Nge2 d7 Bb7 d8B Ng1+ Kf2 Qd5 e6 Qb5 Bd7 Bf3 Qd4 Kg4 Re4 Nfe3 e7+ Rf5 Re6 Bh4+ Ng3 Re5 Rb6+ Rf5 Rhe6 Rg5 Be5 Ra1 Bec7 b1R Bd6 Ra2 Bb8 Rb4 Bd6 Rg7 B6c7 Bg5 Ne4 Rab2 Nec5 Bf6 Bd6 Rg5 Nd3 Ra1 Be2 c1B Be5 Bd2 Bd1 Rc1 Bd6 Rc3 B6c7 Nc2 Bd6 Na1 B6c7 Na5 Bb8 Be1+ Ke3 Be5 Bbc7 Bh4 Bd6 Be2 Ke4 Nc4 B6c7 Nc2 Bd6 Ng6 B6c7 Beg3 Be5 Qa6 Kd5+ Nf4+ Kc6 Bf3+ Kc7 Nd2+ Kd6 Qb5 Nac5 Nc4+ Kc7 Bf2 Na4 Be1 Qc5 Ng6 Bh2 Nf4 Qd4 N4e3+ Kd6 Bef2 Ra2 Bfg3 Ra3 Nc4+
2b1qnn1/bkrrPq2/1qR1n1Bn/1N1n2p1/R2Q4/BKq3N1/N3r3/N6B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 Kc6 a4 g5 c4 b5 Kc2 f5 c5 d3+ Kb2 f3 h5 g3 h6 f4 h7 f2 a5 d4 e5 d2 a6 f3 e6 g2 a7 d3 Qe1 d1Q Nh3 g1N Bf4 d2 Bd6 b3 Ra2 b4 Be5 Kb7 Bc7 Ne2 Nf4 Qe8 Na3 Nd4 Nd5 Nd7 Qe5 Qe1 Rh6 d1R Bd3 f1N Nc2 f2 Nc3 Ne3 Bg6 f1Q Na1 Qff7 Bd6 Nef5 Ra4 Be7 Na2 Nf8 Qf4 Bd8 e7 Nde6 Qg4 Bb6 Qd4 Rb8 a8N Ba7 Nc7 Rd3 Nb5 Qc3+ Kb1 b2 c6+ Ka8 c7 Rb7 Bc5 Re3 Bd6 Re2 Bc5 Bd7 c8B Rc7 Ba6 Bc8 Bb7+ Kb8 Bh1 Rd7 Rh2 Nfh6 Rg2 Kb7 Rg1+ Qcf3 Rc1 Rc7 Bd6 Rd7 Rc6 Qc3 Nc1 Rc7 Ka2 b3+ Ka3 b1Q Na2 Qh3 Kb4 b2 Kc4 Qg1 Ba3 b1N Kb4 Nc3 Kc4 Nf6 Kb3 Rg8 h8N Ncd5+ Bd3 Qge3 Ng6 Rh8 Nf4 Nfg8 Nh5 Qhf3 Qc4 Qb6 Ng3 Q3f6 Bg6 Qe5 Ra5 Qc3+ Ka4 Nd7 Qe4 Qd8 Bb4 Ngf6 Qd4 Re8 Qe3 Ndf8 Ba3 Nfg8 Qd4 Qd7 Ra6 Rd8 Ra5 Qde8 Ra6 Qcc5 Kb3 Rdd7 Ra4 Qc3+
1b1k2q1/2qpbq1R/1bB1r2N/B1rq1R2/3B3Q/N5q1/K1nnP1r1/1N2N2b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 h4 b5 c4 f5 Kc2 f3 Kb2 d3 a4 b3 a5 f4 h5 b4 h6 g3 a6 g2 c5 d2 a7 f2 h7 g4 c6 g3 c7 f3 Nc3 Be7 Nd5 Bb7 c8N Qc7 Ra6 Nc6 Rh2 Nf6 Rh1 Rg8 h8B Kd8 Kb1 b2 Rh4 Nd4 Qe1 d1Q Ra5 Ne4 Bf6 Nc2 Nh3 g1B Nc3 g2 Rc5 Bh2 Rd5 g1B Rc5 Qd5 Rh6 Rg2 Nd6 Rc8 a8N Qg8 Rd5 Nd2+ Ka2 b1R Bd4 Rb3 Nb1 Re3 Rh8 Re6 Nf4 Bg3 Nd3 b3+ Kb2 B3h2 Nf5 Qg3 Nh6 Rc5 Nb6 Qc7 Nc4 Qg3 Kc3 b2 Rf5 Bd5 Na3 b1Q Rh7 Qb7 Nb1 Qbc7 Kb2 Qh4 Rff7 Rg3 Nb6 Rc4 Ng4 Ne4 Na8 Qe5 Bg2 f1Q Ka2 f2 Ba7 Qhh5 Qb4 Qe1 Bd2 f1Q Nh6 Rg4 Bc3 Nd2 Nb6 Qf3 Rf6 Qhf7 Rf5 Qef2 Ne1 Qd3 Bh3 Bh1 Bg2 Bf4 Ba8 Qdd5 Bc6 Rg2 Qa4 Qfg3 Ba5 Qb8 Qb4 Rc3+ Nc4+ Qb6 Qa4 Bb8 Qb4 Qbc7 Be3 Qdd6 Nca3 Bf2 Qh4 Qd5+ Kb2 Rc4 Ka2 Bg1 Bd4 Be3 Be5 Bb6 Bd4 Rc5+
2QRbq1B/2P1k1N1/2Kr3r/3n2nr/2b1B2q/R1rpqr1q/4N1NN/b5R1 w - - 0 1 illegal: No possible last move, all moves rejected
Nn3K1R/Npn2R1N/q2Q1Rb1/5q1n/1n1qBr1P/1R4Br/k2r4/2n1bq2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Ke6 e4 f5 a4 d5 h3 g5 e5 g3+ Kf3 d3 c5 g2 a5 d4 a6 Kd5 e6 Kc4 a7 b3 c6 b2 e7 g4+ Kf2 f3 Kg3 f4+ Kh2 f2 e8N f3 Kg3 Qf6 c7 Bb4 Bg5 Bf5 Kf4 g3 Bh6 Qa6 Ke5 Be1 Ra3 Bg6 Bd2 Ne7 c8R+ Nec6+ Kf6 Rh7 Nc7 Nb4+ Kg5 Rh4 Nc3 b1Q N3d5 Rf4 Ne2 g1N Kh6 g2 Nec3 Ne2 Kg7 g1Q h4 Nc1 Be2 f1Q N3b5 f2 Rh8 Qc2 Ra5 Kb3 Rh3 Qg4 Bc3 d2 Bf3 d3 Nf6 Qd7+ Kf8 Qd4 Na3 Ka2 Be4 Qb1 Rf5 Qc2 Nh7 Qb1 Qa4 d1N Rf7 d2 Qc6 Ne3 Qd6 d1R Nab5 Ned5 Bb2 Rd2 Rb3 Qc5 Be5 Qd4 Bh1 Qf5 Be4 Q1h3 Rf6 f1N Rf7 Ng3 Rf6 Rf1 Rf7 Nh5 Bg3 Rf4 Rf6 Be8 Rf7 Qf1 Rf6 N8c6 Rf7 Rd8 a8R Nb8 Na7 Rd7 Rf6 Bg6 Rf7 Rh2 Rf6 Rh3 Rf7 N8c6 Rc8 Nb8 Na8 Nc7 Re8 Rg4 Re6 Rf4 Ref6 Qb2 Qc6 Rd2 Qd6 Qd4
3B1nNr/Np1B3R/2RN2q1/1r1nbQ1n/PRr5/k1bK4/3n2R1/rb2r2q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 h4 Kd6 c4 Kc5 e4 f5 a4 d5 e5 g5 h5 d3 e6 b3 e7 Kb4 e8R b2 c5 d4 c6 g3 h6 g4 c7 g2 h7 f3 Rh6 f2 Rhe6 g3 Ne2 g1Q Rg6 f4 Na3 b1R Rg5 g2 Rc5 f3 Qc2 Ne7 Nf4 Be6 c8R Ba2 Nh3 Qd5 R8c7 Bg7 Be2 f1N+ Ke1 d2+ Kd1 f2 Rc3 Nd7 Bg4 Be5 Ke2 d1R Qf5 Rc8 Be3 Re1+ Kd3 Nd2 Nb5 f1N Na7 Ng3 R3c6 Nf8 Nf4 Nh5 Ng6 Ka3 Bg5 Rb5 Rb1 Qf7 Bh3 Nd5 Ne7 Qh1 Ng8 g1B Rb4 Qg6 Bd8 Bf2 Rg7 Ra1 Ree6 Be1 Rc2 Rc4 Rc6 Nb3 Rg2 Bc3 Rd7 Nd2 Nf6 Rg8 h8N Re1 Nf7 Rh8 Nd6 Ra1 Rh7 Re1 Bg4 Ra1 Ke2 d3+ Kf2 Re1 Ng8 Nf3 Qf6 d2 Bd7 d1R Qf4 Ra1 Qf5 Reb1 Ke2 Nd2 Kd3 Rg1 Bf6 Rge1 Bd8 Bb1+
6bb/P3B1BB/1k1K4/Rr1nRR2/1r1b1Brr/nnq1N2q/7p/Q3n1Nn w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 h5 Ke5 b5 d4 h3 a4 c3 f4 b3 g4 e3 d5+ Kb6 f5 c5 d6 b4 g5 e2 f6 e1B f7 h4 d7 c2 g6 b2 g7 b3 Rh2 c4 Kd5 e5 Nf3 c3 Ke6 e4 Be2 e3 Ng5 Nf6 g8R Na6 Bd3 e2 Ra2 Nc5+ Ke5 Bg7 f8B Bf2 Rg2 e1N Ne6 h2 Nd2 b1R Rg6 h1N Qg4 h3 Bf5 b2 Nf4 h2 Ne2 Rb8 Rg5 Nd5+ Kd6 Rh4 Ng1 Nb3 Qd1 Bh8 Bg7 Bd4 Bh7 Qe8 Rf8 Qe3 Rgf5 Qh3 Re8 Ba6 Re2 Bc4 Nf1 Rb7 Be3 c1Q Bf4 c2 Ree5 Qce3 Qc1 Qc3 Ne3 Rb8 Qd1 c1R Ra3 Rc2 Qc1 Rg2 d8B+ Ka7 a5 Rb4 a6 Rgg4 Bdf6 Kb6 a7 Ne7 Ng2 Bg8 Raa5 Nd5 Be7 Ra1 Re6 b1N Ree5 Na3 Ne3 Rb1 Qd1 Nd2 Qa4 Rb5 Qd1 R1b4 Qa1 Nb3
1N1R2B1/4rRqn/1b2n2B/4bKbk/1N2PR2/rbp5/n1Nb1NQb/4b2n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 g5 h4 a5 d4 c5 e4 f5 b4 Kf7 h5 f3 Ke3 g3 h6 Kg6 h7 c3 b5 f4+ Kd3 c2 b6 g4 d5 g2 b7 c4+ Kd4 f2 Ke5 g3 d6 f3 d7 a3 Qe2 a4 Nc3 a2 Bf4 c1B Nh3 g1B Qd2 g2 Qb2 a3 Qb3 Qf6+ Kd5 Kh5 d8R Qg7 Rh2 Nc6 b8N Be7 Rd6 Nf6+ Kc5 Re8 h8N Be6 Nf7 Nd8 Kd4 Nh7+ Ne5 Bg5 Rb1 a1B Rb2 a2 Qa3 Bd2 Rbb6 Re7 Qc5 Ra3 Rh1 Bh2 Rb7 g1B Qb5 Bg8 Qb2 Ne6+ Kd5 Be1 Nd1 Bf7 Qd2 Bc3 Rd8 a1B Nd3 Be5 Rbd7 Bac3 Ne3 Ba5 Qa2 Bad2 Nc2 c3 Ndb4 Bg8 Ba6 f1N Nf2 Ng3 Bc4 Ne2 Qb2 Nc1 Rc7 Re8 Rf7 Re7 Bb3 Na2 Be3 Bh4 Bh6 Bhg5 Ng4 Bgf2 Rf1 Bfe3 Nf2 Bb6 Rg1 Bbd4 Rg4 Ba7 Rgf4 Bb6 Nd1 f2 Bc4 f1N Nf2 Bed4 Kd6 Ng3 Bd5 Nh1 Bc4 Nf6 Bb3 B4e3 Ke5 Bed4+ Kf5 Be5 Qb1 Nc7 Rff8 Nh7 Qc1 Bf7 Qa1 Be8 Rf6 Ba4 Bg8 Ne6 Rf7 Bb3 Ng4 Beh4 Qg1 Ra4 Qg2 Bhe1 Nf2 Ra3
k1b1n2r/BN3R1N/r1BpQ1r1/1rR1b2q/1R6/1B1b1Bb1/rP5r/4nrK1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c3 Rh4 Kf2 g5 e4 f5 e5 a5 e6 Ra6 e7 d6 h3 Kd7 e8B+ Kc7 Bd7 Kb7 Na3 f3 Rh2 f4 Be6 d3 Nc2 g3+ Ke1 a3 Qd2 a4 Nb4 f2+ Kd1 f3 Qe3 d2 Nd3 g2 Ba2 g4 Qe7+ Nd7 Qf6 g3 Qg5 Ngf6 Qe3 Ne5 Nc5+ Ka8 Bb5 f1B Nb7 f2 Bc6 Nf3 Qe6 Ne8 Bb3 Qg5 Rb1 Rh7 h4 Bg7 Nh3 g1B h5 a2 h6 a1R Rh1 Qc5 Ng5 g2 Rh4 Bd3 Re4 a3 Rb4 Be4 Ke2 Bh2 Bbd5 d1R Be3 a2 Rc1 f1R Bb3 Qf5 Ba7 Rd5 Ke3 Rh1 Kf2 Bge5 Rc2 Rf7 h7 g1R h8R Rad1 Rh7 a1R Rg7 Bd3 Rh7 Rf6 Rf7 R1a2 Rc1 Rg6 Rc2 Rg8 Nh7 R1g6 Rc1 Bhg3+ Kg2 Rh3 Rc2 Ne1+ Kg1 Rb5 Bf3 Rd2 c4 Rh5 c5 Rh8 c6 Rhh2 c7 Rde2 Rc5 Qh5 Bc6 Bd7 Bf3 Ref2 c8B Bc6 Bd7 Bce4 Qc4 Bf5 Bdc6 Bc8 Qe6 Rf1#
Bb1r4/1N2b2q/n1b5/r2PN3/1r3BRr/1p1rBKb1/NNnr1QRb/7k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kd5 d4 Ke4 e3 c5 d5 g5 a5 b5 a6 f5 a7 b3 h5 b2 h6 c3 h7 c4 Nh3 c2 Qe1 g3+ Ke2 g2 Qh4 g1R Ra6 b4 Rh2 g4 Ra2 f3+ Kf2 f4 Bg2 c3 Rh1 Nh6 Ra5 Qd7 Ra6 Be7 Ra3 Bb7 Rh2 Na6 Bf1 g3+ Ke1 f2+ Ke2 g2 Qf6 Bc6 Qg6+ Nf5 Qg8 Rh1 Ra4 g1B Qf7 Rhd8 Rg2 Bh2 h8B Qc7 Bd2 c1B Be5 c2 Ng1 Bg3 Nf3 Rh4 Bd4 b3 Ne5 Qd7 Na3 b1R Nac4 Rb2 Qf8 Rab8 a8N Rb4 Nc7 Ra2 Bb6 Ba3 Nb2 c1B Nb5 Nd4+ Kd1 Nc2 Ke2 Bd6 Bc5 Qf7 Ba7 Bb8 Nc3+ Kf5 Qc5 Qh7 Kf3 Bh2 Bb5 f1R+ Rf2 Kg5 e4 Rd1 Rg2+ Kh5 Be3 Rd3 Bb6 Bd2 Bc7 Be1 Qd4 Ra1 Na2 Beg3 Qc5 Rad1 Qf8 R1d2 Bd6 Bd7 Bc6 Be8 Ba8 Bc6 Ng6 Kg5 e5 Kh5 e6 Kg5 e7 Kh5 Nc4 Kg5 Ke4 Kg4 e8N f3 Bdf4 Kh3 Nd6 f2 Nb7 f1R Qc5 Ra1 Kf3 Bb2 Qb6 Bf6 Nge5 Be7 Nb2 Rb5 Rc4 Rb4 Nc3 Ra3 Na2 Raa4 Bh6 Ra3 Rg4 Ra5 Bf4 Bg1 Qc5 Na3 Qc1 Nc2 Rf2 B1h2 Qe1 Bg1 Rf1 Kh2 Rf2+ Kh1 Rg2 Rb6 Qe2 B1h2 Qf2 Rb4
R2n2N1/p4nnB/1rRbnK1Q/B1B1BP2/2nb2n1/b2kb1N1/2q2rb1/N7 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Kf6 c4 Ke5 b4 g5 h5 d5 c5 a3 c6 e3 Kd3 g3 b5 e2 h6 e1N+ Ke2 Ke4 f4 e5 c7 g4 b6 g2 h7 a2 b7 d3+ Kf2 d4 Kg3 d2 Rh5 d3 Be2 Nf3 Qe1 d1N Bd2 Nd4 Nf3 g1N Bc1 d2 Nh2 Nh6 Rf5 Nb2 Rf7 d1N Qd2 Ba3 Rf5 Nbc6 b8B Rf8 h8B Ne3 Ba6 Ngf3 Bf6 Bb7 c8N Qc7 Qf2 Ne6 Nf1 Nh2 Kh4 g3 Bg5 g2 Be7 g1B Bd2 Kd4 Rf6 e4 Ng3 Rf7 Qe1 Nef5+ Kh5 e3 Kg6 e2 Bd3 Bf2 Ba5 Nfg7 Qc1 e1B Nd2 Rf8 Rf7 Bg1 Rb1 a1B Rf5 Ke3 Rc5 Ncd8 Nb3+ Bd2 Bd6 Bg2 Ne7 Qc8 Bbc7 Rb8 Ng8 Rf5 Bf8 Nhf7 Be5 Qc6 Be4 Qa4 Bc2 Nc4 Rc6 Bc3 Na1 Bcb4 Bd3 Qc2 Rb2 Bc5 Rb7 Be7 Rbc7 Rb5 Rc8 Rb6 Ra8 Bf2 Qd1 Bc3 Qh5 Bd4 Qh6 Beb4 Bfd6 Kd2 Be4 Bfe3 Be7 Rg5+ Kf6 Rg4 Bf3 Kd3 Bf8 Rg5 Bh5 Rg4 f5 Rf4 Bg6 Rf2 Be7 Bd6 Bh7 Bc7 Beb4 Bd6 Bc5 Ng4+
K1B3rB/pr1qbk2/8/rb1P3n/2R2N2/3R1n2/nrNR2n1/1rnn1RQB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 Kf3 f5 e4 c5 d4 a3 b4 h3 g4 c3 d5 c2 b5 h4 g5 h2 e5 h3 e6 c4 b6 a2 e7 c3 b7 Qd7 g6 Nf6 g7 Nc6 g8R Kf7 b8R Ba6 Na3 Nd4+ Kf2 f3 Ke3 f2 Bd2 c1N Rg2 c2 Bb5 f1R Re2 Nh5 Rg2 Rg8 Be2 Nf3 Bc3 Bb5 Rc8 Rf2 Bh8 Rb8 Rc4 f4+ Ke4 Rb7 e8B+ Ke7 Rb1 a1R Rb3 Na2 Rd3 c1N Nc2 Rb1 Bg6 Ra1 Bf5 Kf7 Bf1 Be7 Ne2 Rb1 Rhg1 h1R Rh2 Rb2 Bg2 Rb1 Re1 Rg1 Bh1 Ra1 Rg2 h2 Rf1 Rb1 Rg3 Rgg2 Rh3 R2g6 Rd2 Ra6 Qe1 Rfg2 Qf2 Ra5 Qg1 Rf2 Bg2 h1N Bg4 Nh2 Ke5 f3 Nf4 Re2+ Kd4 Nf2 Bh1 Nd1 Bf5 f2 Rhd3 Bg5 Kc5 Nf3 Re1 f1N Bh3 Nfe3 Rf1 Ng2 Bg4 Qd8 Bc8 Ba6+ Kc6 Be7 Ne1 R7b4 Nc2 Bb5+ Kb7 Qd7+ Ka8 R4b2 Qc5 Re6 Qf2 Rb6 Qg1 Rb7
Br3R1B/1B1rb1qb/1qqN3n/2NR2nR/2rbn3/7Q/1k3PKp/3Br2n w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 c4 Kf7 a4 Kf6 g4 Ke5 a5 h5 c5 d5 c6 b5 g5 e3 g6 d3 c7 Kd4 a6 e5 g7 e2 a7 h3 Bg2 e4 Rh2 h4 Bf3 b3 Ra5 b2 Rg2 h2 Bh5 h1N Qa4+ b4 Bh6 h3 Na3 Kc3 Bc1 b1Q Nf3 b3 Bg4 b2 Rg3 h2 Ng1 d4 Be6 Qf6 Re3 Be7 Rh5 Qc2 Qe8 b1Q Bc4 Qbb6 Rh7 Nc6 Rhh3 Rh4 Qf8 Rb8 a8B Nd8 Ref3 Ne6 Bb3 Nh6 g8B Ng5 Nc4 Qg7 Nd6 Bf5 Qc8 Bh7 Bgd5 Rg4 Bf4 Kb2 Bdb7 Qcc6 Be5 Rf4 Rh5 Rh4 Kd2 e1B+ Kd1 d2 Ke2 d1N Kf1 e3 Qh3 e2+ Kg2 Bd2 c8R e1R Rd8 Nc3 Bd1 d3 Ne2 Be3 Nd4 d2 Ne6 Rc4 Nc5 Bd4 Rf8 Nce4 Rd3 Bc3 Rd5 Bd4 Bc2 d1R Bf6 Ra1 Bd1 Ra7 Be5 Qg6 Bh8 Qg7 Ba6 Rc7 B6b7 Rd7
1B2qr2/4b2B/N1q5/1k2nr1q/RNbrR1R1/p4Q1n/bRP2q2/1BKn1n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 g4 h5 b4 f5 e4 d5 b5 Kd7 g5 h3 b6 Kc6 e5 h2 b7 f3 e6 f4 e7 a3 e8B+ Nd7 b8R a2 g6 a4 g7 a3 Ne2 d3 Bf7 h4 Nec3 d4 Rb7 h3 Na4 f2 Rb5 f3 Rf5 Ngf6 g8R Nd5 Nac3 Qe8 Rg4 Be7 Bh5 Ra5 Rf8 Nf4 Rf5 Ne5 Rgg1 Be6 Rg4 Rf8 Nd5 Kb5 Rhg1 h1Q Bg6 h2 Bh7 Nh3 Re4 Bf7 Bg2 f1B Rff4 f2 Qf3 Be2 Bb2 f1N+ Kc1 Be6 Nd2 Bf7 Rb1 a1Q Qf2 Be6 Nb4 Ba2 Bf3 Qg2 Rg4 h1Q Nb3 Qhh2 Qg3 Qf2 Nc5 Qhg2 Bc3 Qh1 Be1 Qc3 Nca6 Qcc6 Rb2 Qhh2 Rh4 Qh1 Bg4 Qhf3 Bc8 Qfh5 Qg2 Bg8 Qf3 d2+ Kb1 d1N Rgg4 d3 Be6 d2 Ba2 Qa7 Bf2 Bec4 Bb6 Bge6 Bc7 Qf2 Bb8 Nc3+ Ka1 d1R+ Bb1 Rd2 Ba2 Nd1 Kb1 Rd4 Kc1 Bc5 Bb1 Ba2 Rg7 Bec4 Ra7 Be7 Rhg4 Kb6 Nc7 Rad5 Ra4 Kc5 Nca6+ Kb5 Bd6 Rc5 Bb8 Nf7 Rgf4 Rf5 Rg4 Ne5
1n1b2rk/q1B2Rbb/2r2RR1/qN1QK1BN/q1n4p/6rP/1brN1n2/7N w - - 0 1 illegal: No possible last move
4rbRR/BNN4q/Kn1NQ1r1/1bbp1B1r/1b5B/4Nk2/2rPq1n1/2qn4 w - - 0 1 illegal: No possible last move, all moves rejected
n1RNK1N1/3n2rb/b1q4b/1nPp1b1B/N5R1/1rB2Q2/r3qN2/qk1Br3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 Kf5 a4 b5 c4 b3 a5 f3 e3 b4 g3 d3 c5 d2 a6 h3 a7 b2 Na3 b1R Bb5 h4 Qe1 d1N Ra2 f2 Rc2 f1Q Rc3 b3 Ba4 b2 Rh2 Bh6 Kd6 Ke4 g4 f5 g5 f4 g6 f3 g7 f2 Nb5 Qf6+ Kc7 d5 Na3 Nd7 Nc2 Ne7 g8N Qc6+ Kd8 Qe2 Nd4 f1B Ke8 Rh7 Rc4 Kd3 e4 Nc3 e5 Nb5 Bd2 Rg7 Qf2 Re1 e6 b1B Rg2 h2 Bc3 h1R Bd1 h3 Rg6 h2 Nh3 Rb8 a8N Rg1 Qf4 h1Q Nb6 Rg2 Na4 Rb6 Rg4 Ba6 Rb4 Nc8 e7 Rb8 Ne6 Ncb6+ Nd8 Na8 Qf6 Rh2 Ng5 Bh3 Qf2 Rb6 Rbf4 Bc2 Ne4 Qg1 Rf8 Rb7 Rg2 Bf5 Rg4 Bh7 Qf7 Qef2 Qf3+ Re3 Ne6 Nbc7+ Kd8 Rb3 e8B Nb5 Bh5 Bb1 Be2+ Kc2 Re8 Qc1 Rf8 Qb2 Re8 Qa1 Bd1+ Kc1 Rf8 Re1 Re8 Qe3 Rf8 Ra2 Nf2 Qe2 Re8 Rg5 Ke7 Bbf5 Rc8 Rg7+ Ke8 Be3 Nd8 Kb1 Bd4 Bd2+ Be5 Be3 Bc3 Bh6+
2Knn2b/4r2q/q1pRR3/q1B1N3/1P4BN/k3nnr1/1bQ2Bbr/N2Bb3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 f5 e4 a5 d4 h5 d5 h3 g5 c3 b3 h4 g6 a3 g7 a4 d6 a2 d7 c2 Ke6 a3 e5 h2 Qf3 h3 Qd5 f3 Qd3 f2 Qf3 f4 Qg2 f3 Qg5 Nc6 Qg6 Bb7 Be3 c1B Nd2 Nf6 g8B Ne8 Nc4 Ra7 Na5 Bb2 Rd1 a1B Rd6 a2 Be2 f1N Bf2 Ne3 Bd1 Ka3 Qc2 Rh5 Bf7 Rg5 Bh5 Rg3 Bg4 Bg7 b4 Bh8 Nb3 Qc8 Be1 f2 Nf3 f1N Bf2 Nd2 Re1 h1R Nh4 h2 Re2 Qa8 d8B Nf3 Be7 Nd8+ Kd7 Bc3 e6 Bab2 Bf8 a1Q e7 Qa2 Na1 Be1 Qb1 Be4 Qc2 Q8d5 Kc8 c6 Bg1 Qa5 Bf2 Nf6 e8N Re7 Nc7 Ne8 Ne6 Qc4 Nc5 Bd5 Nd7 Qca6+ Kb8 Ng5 Ne5 Bg2 Red2 Nf3 Re6 Rf1 Rdd6 h1Q Nhg6 Qh7 Nh4 Nb7 Kc8 Rh1 Rg6 Rh2 Rde6 Rf7 Bc5 Rg7 Rd6 Re7 Rge6 Nd8+
nb5q/1N2qq2/PrN2Qbn/3b3B/3r1p2/2Rn4/NbKq1B2/1RB1Nk1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 c4 Kf5 h4 Ke4 a5 g5 c5 f5 h5 b5 h6 d5 h7 f3 c6 b3 e3 f2 a6 g3 c7 d3 Nf3 b4 Ra5 g2 Ne1 g1B Rb5 d4 Rh2 g4 Be2 f1Q Rb7 g3 Bh5 b2 Re2 b3 Ng2 Bg7 Bg6 Kf3 e4 Bh2 e5 Be6 c8N Nd7 Na7 Nb6 Qc2 Nh6 Rc7 Qe7 Qc6+ Bd5 e6 Rab8 Be8 Na8 Qd7 Rb6 Ne3 g2 Re1 Kf2 Kd1 g1Q Bh5 d2 Na3 b1Q Qa4 b2 Qb4 Qa1 Kc2 d1R Rc3 Bb8 Nb1 f4 Qb5 Qc4 Qc6 Qg3 Ng2 Qe3 Qd6 Rd8 h8B Qca2 Re2+ Kf1 Ne1 Qc4 Rd2 Qcc7 Qe5 Qf7 Qf6 Qce7 Nc6 Rd6 Rb3 Rd7 Nc3 Rd8 Na2 d3+ Kc3 b1B+ Rdb2 d2+ Nd3 Qd7 e7 Re1 e8N Qde7 Nd6 Rd7 Nb7 Rd6 Rb5 d1N+ Kb4 Bc2 Rb3 Nf2 Rc3 Rd1 Ne1 Bg6 Ka4 Nd3 Rb1 Rd7 Qf5 Bge5 Bf6 Qb2 Bh4 Qh2 Bf2 Bd4 Rc4 Bb2 Rc3 Qhh4 Qe5 Qhf6 Qg5 Qh8 Qf6 Rc7 Ncb4 Rc4 Kb3 Re4+ Kc2 Rd4 Nf3 Ke2 Nc6 Rh1 Ne1+ Kf1 Qe5 Ba1 Qf5 Bb2 Qf6 Qd2+
2KbN3/3Bq2p/1r6/rbk1qRqN/2nr2nR/n1B5/b3NQP1/r2N1q1R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Kg4 b5 Kf5 b3 e4 h3 c4 b2 a4 f3 a5 f2 e5+ Kc5 a6 d5+ e6 d3 a7 h2 Qe2 d4 Bh6 b4 Ke5 f5 e7 b3 e8N d2 Nf6 d1Q Qe4 d3 Qb7 f4 Bg5 f3 Ne8 d2 Ra2 Qe7+ Kf4 Nf6 Ra6 Bd7 Ra5+ Bb5 Kf5 Nbd7 Ne2 Qe1 Nbc3 b1N Nd1 b2 Ng7 Na3 Nh5 Ng4 Bf6 Nb6 Bc3 b1B+ Qe4 Qg5+ Ke6 Be7 Qf4 Bd8 Ra4 Rb8 a8N Ba2 Nc7 Rf8 Ne8 Rf5 Ra7 Rd5 Rf7 Rd4 Rf5+ Rd5 Nb2 d1R Qg3 Rd4 Nd1 Kc6 c5 Nbc4 Qf4 Rb6 Qe3 Ba6 Qf4 Kb5+ c6 Kc5 Qe3 Bb5 Qf4 Nd6 Kd7 Ndc4+ Kc8 Qe7 Neg3 Q1e5 c7 Qg5 Bd3 f1Q Ne2 f2 Bc2 Qe1 Ba4 f1Q Qf2 Rh6 Kb7 Re6 c8R+ Rc6 Rb8 Rb6+ Kc8 Qee7 Nc1 Q1e5 Ne2 Ra6 Rb6 Ra5 Rh6 Rd6 Nhg3 Rb6 Rh4 Qd6 Nh5 Qde7 Bb3 Nd2 Be6 Ndc4 Rg1 h1R Bd7 Rh3 Rh1 Re3 Be1 Rc3 Bd2 Rc1 Bc3 Ra1
2N3r1/qr1bp3/2N2r1P/b1NnBbqn/1q4R1/n2q3k/2R1BB2/BQK3r1 w - - 0 1 illegal: No possible last move
b1R5/n1rP1BqN/qk1N1R2/5nbQ/qrnbn3/7K/p1R3B1/1r1rB1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 e4 Kc6 b4 h5 d4 a5 g4 f5 Kg2 h3+ Kh2 a3 e5 a4 g5 a2 g6 c3 d5+ Kb6 b5 c5 g7 h4 e6 a3 e7 c2 e8B c4 d6 f3 d7 f2 Bf7 f4 Nc3 f3 Qd4+ Bc5 Bd5 Qg5 Bc6 Ra4 Ba8 Rb4 Bf4 c1R Be3 Nh6 g8R Rcb1 Nge2 Nf5 Qe5 Bd4 Re8 Qg7 Bd5 Nc6 Ng1 Bb7 Bd2 Na7 Rd8 Ba8 Bd3 f1Q Qe2 f2 Ne4 c3 Nf3 c2 B3c4 c1B Be1 Bg5 Nd6 Rd1 Rb1 a1Q Rc1 a2 Rf8 Qb1 Rc3 Qb3 Rc8 Qa4 Rc2 Re8 Be4 Re5 Bf7 Rc5 Bed5 Rc7 Qe8 Qd3 Rf1 Qda3 Bb7 Qa6 Qh8 Q3a4 Qh5 Rdb1 Ne5 Rd1 Ng6 Rdb1 Nf8 Rd1 Kh1 h2 Kg2 h1N Nh7 Nhg3 Kh3 Rdb1 Bg2 Ne4 Rh1 f1N Rh2 Ka5 b6 N1e3 b7 Nc4 b8B Kb6 Rh1 Rd1 Rf1 Rdb1 Kg4 h3 Rf3 h2 Kh3 Nh4 Rf6 Nf5 Bg3 h1R+ Bh2 Rhd1 Bg1 Rb7 Bc7+ Kc6 Bb6+ Rc7 Ba5 Rb7 Bd2 R7b4 Be1 Kb6
b2bKqR1/q2PN1bN/2Q5/2n4R/NrqqBp1B/4rr1R/1N2k3/2n2r1n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Bb2 f3 Kf2 Kd7 Ke3 Kc6 Ke4 Kb5 Ke5 c5 e4 f5 d4 h5 g4 b3 a3 h3 g5 h4 g6 f2 g7 h2 d5 h3 d6 Nh6 g8N Ng4+ Kd5 Ne5 d7 Na6 Ke6 Nd3 Kf7 c3 e5 Kc4 a4 b5 a5 c2 e6 c1B e7 b4 e8N Bb7 Bf6 b2 Ne2 b3 Be7 Bg5 Nc7 f4 Rg1 h1Q Ne6 h2 N2d4 Rh3 Qe2 Qd5 Nf5 h1N Rg3 Qd4 Nc3 b1Q Qf3 b2 Neg7 Qa2 Nd1 b1R Ne6 Rb4 Bg2 f1R Nf6 Bh4 Rg8 Bg7 Nh7 Bhf6 Qc6 Qf8+ Kg6 Re8 Nb2+ Kc3 Bf3 c4 Nc5 Qa4 Ra3+ Kd2 Bd8 Ree1 Be4 c3 Rb3 c2 Rc3 Be5 Bh4 Bc7 Ne7 c1Q Rb3 Bd8 Rc3 Nc7 a6 Ne6 a7 Qa5 Ra3 Qcc4 a8R Nc1 Nca4 Qac5 Rg3 Re3 Ra5 Qa7 Rh5 Ke2 Rf3 Ba8 Rg3 Rh2 Rh3 Rhf2 Nf5 Qfc5 Kf7 Rff3 Ke8 Qcd6 Bc2 Nc5+ Be4 Q6f6 Ne7 Qf8+
RB1N1b1q/RP1B1r1q/b2n2rQ/4b1R1/rB1nK3/6b1/pN3k2/n1Bq2q1 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 f4 Ke6 c4 Kf5 b4 d5 h4 g5 h5 e5 c5 a5 c6 g3 b5 Kg4 c7 g2 f5 Kg3 b6 g4 f6 a3 h6 e3 Kd3 a2 h7 e2 f7 e1B Bf4+ Kf2 Na3 g3 Rb1 a1N Rh3 a4 Qb3 Nc6 Bd2 Nh6 Bc3 Nf5 Rh6 Nd6 Ne2 g1R Bh3 g2 Rc1 Ba6+ Nc4 a3 c8R a2 Bb4 Bc3 b7 Rf1 Bg4 g1Q Rg6 Rg8 Rh6 Rg6 h8B Bb2 Bd7 e4+ Kd2 d3 Be5 d4 Nf4 Qf6 Ne6 Qh8 Nd8 Ra7 Ra8 Qh2 Re1 e3+ Kd1 e2+ Kd2 Qg1 Rh5 Qh2 Rg5 Qh1 Rc1 Q1h7 Rc3 e1B+ Kd1 Nc8 Bb8 d2 Rd3 Bc3 Nb2 Nd6 Re3 Bc4 Qc2 Ra4 Qc1 Ba6 Ree5 Kf3 Ra7 Bg3+ Re1 Kg2 Ba3 Rf4 Re8 Kf2 Bb4 Bg7 f8B Rf7 Ba3 B7e5 Bh6 Bb4 Rg8 Nc4 Re8 Bf8 Bb4 Nd6 Nc4 Kg2 Ke2 d3+ Ke3 d1Q Nb2 Nd4 Qd2+ Kg1 Qc1 d2 Qc6 Nc8 Ke4 Kf2 Bc7 Bh4 Rg4 Qf1 Ne6 d1Q Bc1 Bhg3 Rg5 Qg1 Qd6 Nb6 Rea8 Nc8 Nd8 Rg8+ Qg6 Rgg7 Bb8 Nd6+ Kd5 Nc4 Qh6 Rg6 Ke4 Nd6+
1r2nNQ1/3rbBNn/2bRKB2/2bn1R1B/2b1r2R/q1Rp2bb/r4Pk1/8 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Kf6 c4 Ke5 a4 b5 g5 h5 a5 d5 a6 h3 g6 h4 c5 d3+ Ke3 h2 c6 d4+ Kd2 Kf4 g7 e5 c7 e3+ Ke1 e4 a7 h3 Ne2+ Kf3 Ng3+ e2 Kd2 b3 Nf5 b2 Qe1 b4 Ng3 b3 Ra4 Na6 Ra5 Qe7 Nh5 Nf6 g8R Qa3 Rag5 Bd6 Rb5 Bg3 Rgg5 Nh7 Rb6 Re8 Rg1 h1B Rg2 h2 Rd6 Bh3 c8B Nc7 Nc3 b1R Ra5 b2 Ra4 Ra1 Bb7 Rab8 a8R Ra2 Nd5 b1B+ Bb2 e3+ Kc1 Red8 Ng7 Ne8 R8a5 Rd7 Qb4 e1B Qb3 e2 Nc7+ Kg4 Qg8 Bb4 Be4 e1B Bd5 Bc5 Nce6 Beb4 Nf8 d2+ Kd1 Be4 Ke2 d1N Bf7 Bc6 Rb5 Nc3+ Kd3 Kf3 Kc4 Nd5 Be2+ Ke4 Beh5 d3 Rg1 B1g2 Ra1 h1R Rc1 Re1 Bf6 Be6 Rc3 Bgh3 Bhg6+ Kf3 Bh5+ Kg2 Rba5 Bb6 Rb5 Bd8 Rc5 Be7 Kd4 Ne3 Rf5 Nd5 Kc4 Rb1 Kd4 Bc5+ Ke4 R1b6 Rac4 Rb4 Rd4 Nf4+ Ke5 Bc4 Re4 Nd5+ Ke6 B4b5 Rh4 Rg4 Be5 Bc4 Bf6 Re4+
3N3n/b2rK3/1BBr2qn/bQr1k2n/1Bb3PR/1p1BnR2/2rRr3/rN6 w - - 0 1 illegal: No possible last move, all moves rejected
nkb3B1/1r3rBb/BNRq2Q1/rnbbr2P/1N6/2Bp1N1K/1b6/R2n3b w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 g5 h4 b5 f4 e5 Kf2 d5 Kg3 Kd7 c4 Kc7 c5 b3 f5 e3 h5 e2 f6 e1R f7 e4 a5 b2 c6 d3 a6 d2 a7 b4 Bh3 e3 Ne2 d4 Nec3 e2 Ne4 b3 Ra6 Rh7 Ra3 Na6 Rf1 Qd6+ Rf4 Ne7 Ra2 Nd5 Nec3 Ne3 Na3 b1B Bg2 b2 Ra1 Ba2 Bf1 b1B Na4 Bg7 f8B Bd5 Qc2 d1B Kh2 g3+ Kg1 g4 Bd2 g2 Kh2 g1R Bg2 Rgf1 Qf5 g3+ Kh3 Bf6 Bh1 g2 Bg7 g1B Nc4 Bdc2 Nab2 Bce4 Rf2 Nd1 Rg2 Be5 Qe6 Rf7 Rg6 Be3 Bg2 Bf2 Bf1 Bh1 Nd3 Be3 Nb4 Bbe4 Bc3 d3 Rh6 Bc5 Bg2 Bed4 Ne5 Bg6 Bd2 Bb2 Nf3 Bge4 Bh8 Rhg7 Bc3 Bh7 Qg4 Rb8 a8B Rg5 Bhg7 Rb7 Re6 Rgf5 Qg6 Kb8 Rf6 Nc7 Re6 Rb6 Bb7 Na8 Ba6 Rbb7 Rf6 Rg1 Re6 e1N Rf6 Nc2 c7+ Ka7 Re6 Nd4 Rf6 Re5+ Re6 Bd7 c8N+ Kb8 Nb6 Rf1 Rb1 Nb5 Ra1 Rff5 Rf6 Bc8 Re6 Qd8 Rc6 Qd6 Ne1 Bb3 Bd5 Ba2 Bg8 Bad5 Nbc2 R1f4 Nf3 Ra4 Nb4 Ra5 Kg3 Rf4 Kh2 Rff5 Kh3 Rff7+
1B2b3/nnnnbk1n/1RN2b1P/q7/2r1B3/1N3r1N/1R1Rp1Qb/1Nn3rK w - - 0 1 illegal: No possible last move, all moves rejected
3R1Q1N/3n2K1/1rPb1pBR/n1n1r1rr/2b1R3/B2r1R2/B1qN3b/r2n3k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 g5 a4 d5 h5 b5 c5 d3 h6 g3+ Kf3 b3 c6 d2 h7 g2 a5 b2 a6 g4+ Kf2 d4 a7 f3 Kg3 d3 Qa4 d1R Rh6 f2 Rd6 b4 Bg5 d2 Kh4 b3 Kh5 g3 Bf6+ Kf4 Bh4 Be6 e5+ Bc4 e6 Na6 e7 Nc5 Bd3 f1N e8B Ne3 Nh3+ Kf3 Nc3 g1B Nb5 Kg2 Nd4 b1R Ng5 b2 Qa3 Bh2 Rf6 Bd6 Ndf3 Kh1 Bg6 g2 Bd7 g1R Be6 Rb8 a8R Rb6 Bf2 Qe8 Rd8 Rg3 Rf5 Nf6+ Kh6 Nfd7 Kg7 f6 Nf7 Rg5 Re5 Re1 Re4 d1N Nd2 Rb3 Qb4 Rd3 Ra3 Ra1 Rb3 b1R Qa3 Rf8 h8R Rb2 Rh3 Rh8 Rh6 Qe7 Rc3 Rb6 Bd5 Qe5 Bg3 Qf5 Be5 Ba6 Ba2 Nc4 Rb3 Bb5 Bb2 Na5 Qb4 Bc4 Ba3 Rd5 Rf3 Rd3 Rd4 Re5 Re4 Rhe8 Nh8 Rh5 Rg3 Qf2 Rf3 Reg5 Nf1 Qc2 Nd2 Ncb3 Qc5 Ree5 Qb4 Bb8 Qe7 Bd6 Qf8 Nbc5
1KQ3r1/BB3N2/2p1n2b/r2Bn2R/1k3PbN/3Bb3/bn2b1Rb/N1rn3q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Ke5 b5 a4 h5 f4 h3 g4 h2 g5 c3 a5 c2 g6 b3 d4+ Kb4 d5 h4 a6 c6 d6 h3 a7 b2 g7 e3 d7 e2 Nf3 e1B Ra2 Bg3 Qe2 Nh6 g8B Nf7+ Ke6 Ng5+ Ke5 Ne6 Nfd2 Bh6 Bh7 Rg8 Nc3 b1R Bb2 c1B Nf3 Be3 Qd2 Rc1 Rg1 h1N Qe2 h2 Qd1 Nf2 Ra1 h1B Be4 Bh2 Nh4 Bf3 Ra5 Be2 Na4 Qb6 Qc2 Nd1 d8N Qc5+ Bd5 Nd7+ Kf5 Ne5 Bd4 Qc3 Nf7 Qe1 Nc5 Bd7 Nb3 Bc8 Bh3 Bd7 Rg7 Qh1 Bf1 Nc5+ Be6 Ng6 Ng2 Bd3+ Kg4 Beg1 Bf5 e5 Nd6 e4 Na1 e3 Nf7 e2 Be6 e1N Nh4 Be3 Be2 Bc4 Kf5 Ned3 Bf1 Bc8 Qg2 Ba2 Qh3 Bc4 Kf6 Ba2 Bb3 Ba6 Qc8 Ne6 Bb6 Kc3 Be2 b4 Rh5 Bb5 Bd5 Nge5 Ke7 N3b2 Kd6 Bd3 Bc5 Bf5 Rg2 Bg4 Bd3 Bc4 Bg6 Bce2 Bb6 b3 Bd4+ Kb4 Bd3 Na4 Bb6 b2 Bd4 Ng7 Kc7 b1B Kb7 Ba2 Kc7 Rb8 a8B Nab2 Ba7 Rb5 Bb7 Ne6+ Kb8 Ra5
Rn2N1B1/n2Kn1B1/q2n2b1/2rB3R/n3Np1b/2b1kP2/Nb2N1q1/1Q2nr2 w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 g4 e5+ Ke3 Kd5 a4 h5 d4 c5 f3 f5 a5 c2 a6 h3 g5 b4 g6 b3 a7 c4 g7 h4 Ba3 c1B+ Nd2 f4+ Ke2 e3 Be7 e4 Bf6 c3 Qe1 b2 Bg2 b1N Qg3 h2 Nb3 c2 Qf2 h3 Ra6 Ne7 g8N Nc3+ Kf1 e2+ Ke1 Rh5 Na5 Nbc6 Rb6 Qd6 Nc4 Bg7 Qf1 Bf5 Ra6 Bb2 Kd2 e1N Ne2 c1N Ra3 Rb8 a8B Nb5 Ra6 Bh8 Bg7 Na7 Ra3 Qg6 Nd6 Na2 Ne8 Nc3 Ngf6+ Kc4 d5 Na4 d6 e3+ Kd1 Qh6 d7 Bg6 d8N Rc5 Ne4 Rb6 Ra1 Kd3 Qg1 Bc3 Bf1 Rb2 Kc1 Rd2 Kb1 Rd1+ Ka2 Rc1 Kb3 Bb2 N2c3+ e2 Ne6 Rd1 Na2 Rb1 Qg5 Ke3 Qf5 Rd1 Nd4 Bc3 Rg1 h1Q Rg5 h2 Rh5 Qg2 Bb7 h1N Ka3 Nd8 Bd5 Ng3 Kb3 Ndc6 Bg8 Rb5+ Kc4 Ra5 Qb5 Ngf5 Qb1 Bb2 Bf8 Bf6 Bg7 Bh4 Bd5 Nc2 Bg8 e1B Ne2 Bec3 Bd5 Ne1 Bg8 Qg3 Bh3 Qg2 Bd5 Nfd4 Bhe6 Ndb5 Bf7 Nc2 Bfe6 Rf1 Bg8 Ne1 Bdf7 Nf5 Kd5 Nfe7+ Ke6 Nd6 Kd7 Rc5 Be6 Qhg5 Bd5 Qf6 Nb4 Qd4 Ra3 Qc4 Na2 Qa6 Rb3 Rh1 Rb8 Rf1 Ra8 Nb8+
n7/R1N3q1/3b1n1K/Q4q1b/N2rPR1q/b1Bpk1q1/1RrqBq2/B3bR2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 c4 g5 a4 f5 c5 d5 h5 b5 c6 g3+ Kf3 g4+ Ke2 g2 a5 d3+ Kf2 Kd4 h6 b3 c7 d2 h7 b4 a6 f3 Kg3 f4+ Kh2 f2 a7 b2 Ra3 b3 Bd3 f1Q Nc3 b1Q Qc2 d1Q Be2 f3 Kg3 f2 Kf4 b2 Rh3 g3 Bc4 Nf6 Kg5 Na6 Na2 Qa1 Rb3 b1Q Kg6 Ba3 Nc3 Bg4 c8R Nc7 Bh6 Qd2 Rb2 Bh5+ Kg7 Qbe1 Qb3 Qfd3 Rb1 f1Q Rh4 Qef2 Nh3 g1B Ng5 g2 Rf4 Qdg3 Rb8 Bh2 Na4 g1B Qb5 Ke3 Be2 d4 Qa5 d3 R8b2 Rc8 a8R Qfh3 Ra6 Na8 Ra7 Rc2 Rf1 Rf8 h8B Qf5 Bg4 Re8 Ne6 Rf8 Bg5 Rf7+ Kh6 Rd7 Nc7 Rd4 Bg7 Qe7 Be2 Qae1 Qb6 Qh4 Qb4 Qfg3 Qa5 Bf2 Bf8 Qf7 Bb4 Qa1 Bc3 Be1 Bf3 Ne8 Be7 Nf6 Be2 Qaa2 Bf8 Qfg8 Bg7 Qaf7 Bh8 Qf2 Rg4 Bhd6 Rf4 Qgg3 Rb1 Nd5 Bb4 Rdc4 Ba1 Nf6 Bbc3 Rd4 Rb2 Qfg7#
2K1N2b/B1B2R2/q4rB1/4qNk1/3pP2q/1bq2Q2/RrR2q1n/R1b2bnq w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kf6 e4 g5 a4 d5 h4 b5 c5 g3+ Kf3 d3 a5 g2 c6 d4 a6 d2 c7 b3 a7 b4 h5 g4+ Ke2 f3+ Kd3 f2 Kc4 b2 Kb5 b3 Kb6 g3 h6 Nc6 h7 Nh6 Ra5 Ne5 Qh5 d1Q Qg4 Qf3 Be2 f1Q Rh2 Be6 Kb7 Rb8+ Ka6 Qc3 c8R Bg7 a8R Rf8 h8B Nf3 Nd2 b1Q Ba3 b2 Bb4 Bb3 Qd7 Ng4 Ra4 Kg5 Rh3 f5 Rh7 f4 Nc4 Ngh2 Ra2 Rf6+ Nd6 Qbc1 Qe8 b1Q Bc5 Qc1e1 Bb5 Qef2 Ne2 g1Q Ba7 g2 Ng3 Qh1 Nf5 Ng1 Qf8 f3 Bc4 Rb5 Bf7 Qdc7 Bh5 Qbe1 Bg6 Q7c5 Rc6 Qe5 Ne8 Qh4 Qa3 f2 Ra1 Qfd3 Ra2 f1B Qf8 Bh6 Rf7 Bg7 Ra1 Qef2 Ra2 Rd5+ Kb7 Rb5+ Kc8 Rb7 Ra1 Qa6 Rc4 Ne2 Ra2 g1B Rc6 Qff4 Rcc7 Be3 Rc4 Bc1 Qa3 Qca5 Rcc2 Qff2 Ra1 Ng1 Raa2 Bd5 Qf3 Bb3 Ra1 Bh6 Bg7 Qae1 Bf8 Bg7 Bd6 Bh8 Bc7 Qc3 Bc5 Qae2 R8a2 Qa6 B5b6 Bbc4 Ba7 Rb2+ Kd8 Bb3 Kd7 Qab5+ Kc8 Qa6+
N2n4/q1b1Bb1k/n2RQ2n/rBb2PB1/1R4B1/2r1N1bn/1Nnp2Kn/2q5 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 Kg6 Kf2 b5 c4 e5 h4 d5 c5 b3 a5 d3 c6 e3+ Kg2 d2 h5+ Kh7 h6 g5 f5 e4 a6 b2 c7 e2 a7 e1B Qb3 d1N Kh2 d4 Nd2 b1Q Qa2 d3 Qc2 e3 Qa4 g3+ Kg2 g4 Rh4 e2 Qf4 b4 Ra2 b3 Ra4 b2 Ngf3 Qd7 Ra3 Bc5 Ne5 Nc3 Ra1 Na6 Qd4 Ne4 Rh3 Nd6 Nec4 Nb7 Nb3 d2 Qe4 Nd8 Kh1 g2+ Kh2 g1N Nba5 g3+ Kg2 Nf3 Qe6 Qc2 Rb1 Nh2 Ne3 Bf2 Rh4 e1B Be2 Qe7 Ra1 b1N Bg4 Na3 Nac4 Qb2 Ra2 Nc2 Ra3 Bd7 c8B Be8 Rd3 Bf7 Bd7 Qb1 Ba3 Qc1 Bb4 Bb6 Ba3 Bc7 Bb5 Rc8 a8N Qd7 Nd5 Bc5 Nde3 Bf2 Nb2 Be1 Kh3 g2 Rd6 g1N+ Kg2 Bg3 Bb4 Nh3 Ba3 Ne7 Bb4 Re8 Ba3 Ng8 Bb4 Kh8 h7 Nh6 Ba3 Kg7 h8B+ Kh7 Bf6 Rf8 Bg5 Re8 Qa2 Re4 Qe6 Ra4 Bh5 Ra5 Rb4 Qc6+ Bf3 Qb6 Bg4 Qa7 Nd5 B5b6 Rd7 Qb8 Ra4 Bcd6 Ne3 Rc3 Rc4 Bdf4 Bae7 Bc5 Rb4 Bc7 Rd6 Qa7
1N1n2B1/6r1/nB1rb1nR/1q3P1B/qNk1bRK1/p1Nbn3/4bb1N/2Q2b2 w - - 0 1 illegal: No possible last move
3R2B1/1KNn2r1/N1r1qbp1/B1N2qr1/2b3Pb/r3QB2/1N1br1R1/knr5 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 b4 fxe4 d5 axb4 d6 h4 Qd3 cxd6 Bb2 d5 Qg3 hxg3 Bc1 d4 Kd2 Kf7 h4 Ke6 f4 Kd5 a4 e5 f5 b5 c3 g2 h5 e3+ Kd3 e4+ Kc2 e2 Kb3 e1B h6 e3 a5 g6 a6 d3 c4+ Kd4 a7 d5 c5 d2 f6 d1R f7 e2 h7 Ba6 c6 Qe7 c7 Bg7 c8B Bd2 f8Q e1R Qe8 Nf6 Be2 Qe6 Rh4 Rg8 h8N Nbd7 Nc3 Ne4 Rh5 Bf6 Bd3 Re2 Bb7 Rg7 Na2 Nc3 Nh3 g1B Ng5 Bf2 Ne4 B2h4 Nc5 Nb1 Bc4 Rf1 Nf7 Rf5 Rh7 Rg5 Rh8 Rc8 a8N Rc6 Kb2 b3 Nd6 b4 Nc7 Bg3 Rh2 Bh4 Rg2 Bb5 Nde4 Ba6 Nac3 Bb5 Ra8 Ba6 Ka1 b2+ Ka2 Bb5 Bb3 Bc4 N5a6 Kd3 Rb8 d4 Na4 Qf7 Nd6 Qe6 N4c5+ Kc3 Rd8 d3 Ba8 Bde1 Be3 d2 Qe7 d1R Bd2+ Kd4 Bb7 Rc1 Ba8 Bef2 Be1 Be3 Qe8 Bd2 Qe7 Bb5 Nc4 Kc3 Qe8 Rd6 Bf3 Rc6 Ne5 Bc4 Ned3 Na3 Qe7 b1R Qe8 Bd5 Bc4 Rb3 Nb2 Nb1 Qe7 Be4 Qe8 Bd3 Bcd5 Bc4 Qe7 Qf5 Bg8 Kc2 Qe3 Qe6 Qf2 Bf4 Qe3 Rd3+ Ka1 b3 Ba5 Rc3 Qg1 Bd2 Qe3 Rd3 Nd5 Ree1 Ndc7 Rd4 Nba4 Re2 Qe5 Rd3 Qc3+ Kd1 Qe5 Nc3+ Kb2 Re3 Ka3 Kc2 Kb4 Kb1 Qf4 b2 Qd4 Ka2 Qd3 b1Q+ Nb2 Qc2 Qd4 Qcf5 Qf4 Rd3 Qe3 Nb1+ Ka4 Bd5 Kb5 Ka1 Nb4 Nb6 Ka6 Bc4+ Kb7 Ra3 Nba6 Nd7
N2N1k1K/3n4/qqr2P2/2p1R1r1/2rB2b1/3BRnQ1/rnN2Rn1/1r3Rbr w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 h5 Ke3 b5 Kf4 e5+ Ke3 b3 f4 h3 d4 b2 a4 b4 g4 h4 f5 c3 g5 c2 g6 h2 d5 b3 f6 h3 g7 Nh6 g8R Bg4 a5 Nf7 a6 Nd7 d6 Ng5 a7 Rh5 Bd3 Nf3 Nd2 b1R Nc4 b2 Ra5 Qc8 Rd5 Rg5 Na5 Qa6 Bd2 c1R Nb7 Rc4 Ne2 c6 Rg1 h1R Qb3 h2 Rf1 Rbc1 Bc3 b1Q Qa3 Qbb6+ Nd4 Rg1 Rh8 h1R Rh2 Bh6 Rg2 Kf8 Rgf2 Rb1 Qb3 c5 Nc2 Rg2 Qa3 Rc8 a8N Rc6 Nd8 Rgh2 Bd4 Rg2 Ke2 e3 Qc3 e4 Re5 Rg8 Qb3 Bf4 Qa3 Bh2 Qc3 Bg1 Qe1 Nb8 d7 Rgh2 Nb7 Rg5 d8R+ Kf7 Rh8 Nd7 Rh3 Kf8 Nd8 Rbb4 Kd1 e2+ Kc1 e3 Qc3 e1N Kd1 Qaa7 Ke2 Rb3 Nb4 Qb5 Bh7 Qba6 Rg2 Nh4+ Rhf3 Nc2 Kd3 Q6b6 Ke4 Ne1 Rgg3 Rd2 R3f2 Ra2 Nc2 e2 Qf3 Rbb2 Qf4 Nd3 Re3 e1N Qg3 Rb1 Kd5 Nb2 Bd3 Qaa6 Ke4 Rg7 Kf4 Ng6+ Kg5 Nh4+ Kh6 Rg5 Kh7 Neg2 Kh8 Nf3+
1n1b1r1N/r5N1/bpqB2n1/k4B2/3n3b/1RP1R2R/r1rKnnN1/b3Q2N w - - 0 1 illegal: No possible last move, all moves rejected
R1qr1RRr/Nrbbr3/bpr3q1/b1nNB1QN/n7/P5KB/8/1kN2r2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kf6 h4 Kf5 c5 Ke4 a3 f5 h5 d5 c6 g5 e3 f3 h6 d3 h7 g3+ Ke1 f4 c7 g4 Qe2 d4 Bh3 b3 Qf2 g2 Qd2 f2+ Kd1 f1B Ke1 f3 Kf2 b2 Ne2 g1B+ Kg3 f2 Ra2 Na6 Qa5 d2 Qa4 Kd3 e4 d1R e5 Nf6 e6 Ra7 e7 Bd7 e8N Bd6+ Bf4 Rc1 c8N Nd5 Nec3 Nb6 Nd5 Rc6 Bg2 Bc7 Qb5+ Kc2 Nd2 d3 Be4 Na4 Nde7 N6c5 Ra1 b1R Bg2 Re1 Nd5 Re7 Nb3 d2 Re1 d1R Ng7 Kb1 Bh3 b6 Re4 Rb7 Na7 Qc8 Be5 Bd3 Nh5 f1R Re1 Be3 Rg1 Bd2 Nc1+ Bb4 Qa5 Ba6 Re2 Rd2 Rf2 Rd4 Rf8 Be1+ Kg2 g3 Qd2 Rd3 Qe3 Ba5 Qg5 Rg8 h8R Rd4 Kh1 g2+ Kh2 Rdd1 Kg3 Rd2 Rh6 Rh8 Rg6 Rdd1 Rgg8 Rd4 Rh1 Rdd1 Rh2 g1Q+ Rg2 Qh1 Rgf2 Qe4 Rd8 Qc2 Rff8 Qg6 Rf3 Bg4 Ndf6 Qe6 Ra8 Rd8 Nd5 Qc8 Rff8 Bd7
2Nkb1q1/3pR2n/bnQ1R1Nb/P1q2B2/2b4r/1qb5/2N2qRB/Rr4Kb w - - 0 1 illegal: No possible last move
qbrN1n2/2PNb3/4B1rN/1qb1B1BR/1nr2p2/KbQ4b/B3r3/R3b2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 e4 Kf6 h4 Ke5 b4 g5 c4 a5 Kc2 d5 Kb2 f5 h5 a3+ Ka2 f3 b5 f2 b6 f4 h6 g3 c5 a4 c6 g2 h7 d3 b7 d4 Nc3 d2 Nh3 g1R Bb5 f1Q Qb3 d1B Ne2 g4 Nc3 g3 Nf2 g2 Nb1 d3 Nc3 d2 Nh3 Nd7 b8N Be7 Ne2 Ngf6 Qg8 Nf8 Qf7 Bb3+ Kb1 d1R Ng5 a2+ Kb2 Rd4 Ne6 Rc4 Ng3 Nd5 Nf5 Nb4 Rh5 Rg8 Be3 Rg6 Bc5 Qb1+ Ka3 Re1 Bf2 g1B Bh4 Bgc5 Bg5 Re2 Nh6 Qa5 Nd8 Bh3 Qe8 Qh1 Ba6 Qb5 Nd7+ Kd4 h8B+ Ke3 e5 Kf3 e6 Kg2 Qf7 Rc8 Qf6 Kh2 Qc3 Qe4 Rf1 a1B c7 Qa8 Re1 Ba7 Rf1 Bb8 Be5 Bc5 e7 Kg2 Rf2+ Kh1 e8B Be7 Bf7 Bc5 Qg3 Bc3 Be6 Be1 Rf3 Be7 Rc3 Bc5 Rc1 Be7 Qd3 Bc5 Qc2 Be7 Ra1 Bc5 Kb2 a3+ Kc1 a2 Bb7+ Rce4 Kb2 Ba4 Bbd5 Be7 Rd1 a1B+ Ka3 Bd4 Ba2 Bdc5 Qc3 Rc4 Ra1 Bb3+
2nR2rK/1P2Q3/Rr6/q2rBRbp/r1n1b2N/1kB1n1N1/2b1b1B1/2Rn1b2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 Kc4 b5 e5 c3 d5 f5 h5 f6 a5 b6 e3 Kf3+ e2 b7 e4+ Kf4 e3 Kg5 a3 Kg6 a2 g5 h3 f7 a4 Ba3 h2 Qd2 d3 Nh3 e1N Qg2 d4 Bc1 e2 Ng1 d2 Na3+ Kb3 c4 d1B c5 d3 c6 d2 c7 Nd7 Bb2 Be7 Kg7 Ra6 f8B Rb6 g6 Bc2 Be5 d1B Qg3+ Nd3 Bg2 e1R Qh4 Be2 Qe4 Bg5 Nh3 Nf2 Nc4 a3 Rg1 h1B Nd6 Rd1 Nf5 Ne7 Nf4 Rd5 Ng3 Nd1 Rf1 Rg8+ Kh7 Ba6 g7 Be2 Rc1 a1N Ng6 a2 Rf5 Bf1 Bc3 Ne5 Nh4 Nc4 Qe1 Bd7 c8R Bb5 Rc6 Nc8 Bd6 Qc7 Bde5 Be2 Bh3 Bhe4 Re6 Qc5 Bg2 Qa3 Rf6 Qa5 Rc6 Bb1 Re6 Nc2 Rh6 a1R Rf6 Rgd8 g8R N2e3 Kh8 Ra4 Rd6 Bbc2 Rg6 R8d7 Rd8 Rg7 Rgf6 Bf1 Rfd6 Na3 Re6 Bbe2 Red6 Nac4 Rg6 Rbb4 Ra6 Rb6 Ra1 Be2d3 Ne2 Ng4 Ng3 Bf3 Bb8 Rgg6 Qe6 Nge3 Rc1 Bde4 Bbe5 B3e2 Qe7 Rg8+
k1r1R1rq/Pr1nQ1r1/2q2q1b/N1n5/NqrR4/1BN4p/3B2r1/2Bb1B1K w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 d5 a4 Kd7 f4 Kc6 Kf2 h5 Kg2 b5 c4 Kb7 f5 e5 c5 b3 a5 b2 g5 d3 f6 h3+ Kh2 d2 g6 d4 f7 d3 g7 e3 Qa4 d1R Qa3 e2 Bd2 e1Q Bg2+ e4 Bg5 b4 Bh6 b3 Be3 h4 Bf4 d2 Nc3 b1Q Na2 b2 Bg3 Qc2 Rc1 b1R Qa4 Nd7 Bf1 e3 Ne2 Qf6 Nec3 e2 c6+ Ka7 a6 Nc5 c7 Rb7 Bd6 Bg4 Qa3 Rc8 Na4 Ka8 a7 Rh7 Rb1 Rc1 Rb4 d1R N2c3 Rd2 Rd4 Rh8 Kg1 h2+ Kg2 Qh7 Bf4 Rcc2 Rg1 h1R Qb4 Qc1 Bg5 Rh3 Qa3 Re3 Kh1 e1Q Rg3 Red3 Re3 h3 Re8 Rg2 Bd2 Rdg3 Qb4 Bd1 Qa3 Nh6 g8B Ng4 Qb4 Bh6 f8B Qee7 Bb3 Ne5 Qa3 Ned7 Qb4 Bf4 Bh6 Rg7 Qa3 Rhg8 Bg5 Rd8 c8N Qh8 Nd6 Rc8 Nc4 Qed6 Bh6 Qc6 Na5 Qb2 Nb1 Rc4 Nbc3 Ne4 Qe7 Nec5 Bc1 Qa3 Bg5 Qb4 Bh6 Be5 Bhe3 Bf4 Bed2 Bh6
R3N2b/nq5b/b2Bb1B1/2K1pr1N/3rk1Pq/1QbN1N2/b2nbR2/B4b2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 h5 f5 e5 f6 b5 c3 e3+ Kd3 e2 f7 e1B a5 b3 a6 b2 a7 h3 Bd2 h2 Ra2 h4 Bh3 b4 Qc2 b3 Ne2 Nc6 Qc1 Nf6 Rg1 h1B Ra4 Rh5 Qd1 Bg7 f8B Bh8 Bc5 Rf5 Rf1 Ba6+ Rc4 Ne4 Nc1 Bg2 Be3 Nd2 Rf2 Rc8 a8N Na7 Bd6 Bf1+ Ne2 Qb6 Qc2 Rd8 Bg2+ Nf3 Qd1 h3 Nd2 b1B+ Qc2 Qb7 Nb6+ Ke6 Bh1 b2 Nd5 h2 Nf6 Ba2 Nh5 Kd5 Bg2 h1Q Qb3 Qh4 Bh1 Bh3 Nc1 b1B+ Qc2 Nb5 Rc8 Bg2 Ra8 Bf1+ Ne2 Na7+ c4+ Kc6 Ke4 d3 c5 Be6 Bd4 Bba2 Be7 d6 Qb3 Rd7 Nef4 d5+ Ke3 Rd8 Ba1 d4+ Ke4 Rd7 Bd6 Rd8 Nb1 d2 Nd3 d1B Nd2 Bde2 Bg2 Ng1 Nf3 Bc3 Ndf4 d3 Bh1 d2 Nd3 d1B Bg2 Kd7+ c6+ Ke8 Bh1 Kf7 Bg2 Bc2 Bh1 Qb6 c7 Kg6 c8N Qb8 Nd4 Kg5 Bg2 Nf3 Bh1 Bd7 Kd5 Nd2 Kc5 Qb7 Be4 Be6 Nf3+ Kg6 Bf8 Rd4 Nd6 Bcb1 Ne8 Bc2 Ng1 Kg5 Bd6 Rf8 Bg6 Rf5 Ne1 Bcb1 Nhg7 Bc2 Ngf3+ Kf4 Nd3+ Ke4 Nh5 Bg8 Qb6 Bh7 Qb1 Bcb3 Qd1 Bf7 Qb3 Be6
2B1b1rb/qRBN1R2/qQn4B/1nr4b/1KN1n1r1/2p2P1k/B2N1r2/b2n4 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 Kd2 Kf6 g4 Kg5 a4 c5 f3 b5 d5 e5 a5 h5 d6 b3 Kc3+ e3 a6 b2 d7 b4+ Kc2 h3 a7 Kh4 g5 e2 g6 e1B g7 h2 Bd2 b3+ Kc3 e4 Ra4 e3 Bd3 e2 Bh7 Qe7 d8B Nc6 Ba5 Nf6 g8B Bg7 Nh3 Bd7 Be4 Be8 Rg1 h1N Qc1 Nf2 Be6 Rg8 B4f5 Bh8 Bb6 Rg4 Na3 b1N+ Kb2 c3+ Ka1 b2+ Ka2 c2 Kb3 c4+ Ka2 Nd1 Bc5 Ne4 Bf4 Bec3 Rg3 e1Q Nf2 Qf1 Qe3 c1R Rb4 Rd8 a8N Qa7 Bh6 Rc2 Nd3 Rf2 Rb7 Rb8 Rg1 Kh3 Nb6 h4 Ne5 Bh5 Ned7 Rg8 Bb4 Bcf6 Ba5 Qe2 Nc2 Nbc3+ Ka3 b1B Nd4 Nb5+ Ka4 Bd3 Nb3 Ba1 Nd2 c3 Ba2 Bc4 Rg2 Bcf7 Nbc4 Be8 Kb3 Qf1 Bc7 Qd3 Qb6 Qd6 Nce5 Qda3+ Kc4 Q3a6 Rg3+ Kh2 Rg1 h3 Rh1+ Kg2 Kb3 h2 Nec4 Kh3 Re1 Ng5 Re7 h1R Rf7 Re1 Be6 Re5 Bf5 Ne4 Be6 Nb8 Kb4 Reg5 Nf6 Rd5 Bc8 Rc5 Nd7 Nc6+
5r1n/1n1k2qB/3q1BR1/2Bb2nK/P5r1/n1B2RQN/b1N2p1q/b1q1bN2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 d4 f5 e4 g5 a4 f3 Kg3 f4+ Kf2 c3 e5 g3+ Ke1 g2 Kf2 c4 d5 g4 h5 b3 e6 c2 d6 g3+ Ke1 f2+ Ke2 b2 Kf3 c3 Kg4 f3 h6 b4 h7 b3 Bd3 f1Q Nh3 g1Q Kh5 g2 e7 f2 Bf4 c1Q Bf5 c2 Bg5 Nh6 Na3 b1N Ra2 b2 Nb5 Be6 Ra3 Na6 Qd5 Nf7 Bh4 Rg8 h8B Qh2 Rg1 Bg7 Be4 Nc5 Qc4 Nb7 Qd3 Kd7 e8N Bd5 Qg3 Bf6 Rf3 Rg4 Nec7 Na3 Bd3 b1B Bh7 Ba1 Bc3 Nh8 Nd4 Bba2 Bf6 Qb2 Be7 c1B Nc2 Bd2 Bef6 Qf8 Bfd4 Qfc1 Bc5 Bdc4 Nd5 Be1 Nde3 Bd5 Nf1 Qb6 Rd3 Qg7 Re3 Rf8 Rf3 Kd8 d7 Qd6 Nb4 Ke7 d8B+ Ke8 Bdf6 Kd7 Rh1 g1N Nc2 Ne2 Rg1 Nd4 Qf4 Ne6 Qe5 Rd4 Rg6 Ng5 Qg3 Rg4
1Rn2b2/rb1nq2b/B2B3P/1QN1r1nb/NN1n3q/4Rqp1/1R1q2kN/1K6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 h4 f5 a4 d5 h5 b5 c5 d3+ Kb2 f3 h6 f2 a5 b3 a6 d4 c6 d2 c7 Kf4 e5 Kg3 a7 d3 e6 b4 e7 f4 e8N f3 Ra3 Nd7 Bg2 f1N Nc3 f2 Rh2 Bb7 c8R Ne7 Be4 Ne3 Rb8 f1Q Ra5 N3f5 Nf6 Nc8 Ra1 Qf3 Rh3+ Kg2 Nb5 g3 Ne8 g4 Bc6 Nd4 Ra3 Qh4 Kb1 b2 Qb3 d1B Ng7 d2 Ra2 Rg8 Ne6 Rg5 Nc3 Re5 Na4 Be2 Bd5 d1Q Nec5 Qd2 Bc4 Bd1 Ra3 Qe7 Ba6 Be2 Ka2 b1B+ Ka1 Bbd3 Ra2 Bh7 Rb2 Qh4 Qd3 b3 Kb1 Qe7 Ra2 Qh4 Ba3 Bd1 Rc2 b2 Qb5 Qe7 Ka2 b1N Rb2 Nc3+ Ka1 Ne4 Kb1 Bb3 Bb4 Bf7 Ba3 Bh5 Bb4 Qff6 Nf3 Qh4 Nh2 Ng5+ Ne4 Kg1 Bd6 g2 Rd3 g3 Nec5 Ne4 Re3 Ng5+ Nd3 Kh1 Nc5 g1Q+ Ka2 Qgc1 Nb4 Qcc3 Ka1 Rf5 Kb1 Kg2 Re4 Qf3 Re3 Ncb6 Re8 Rb8 a8N Rd8 Nc7 Rb8 Na4 Ra8 Ne6 Ra7 Rb8 Nc8 Nec5 Re5+
q2N4/2n1brRn/1k1n1Q1p/qBNK1R1q/rN6/1Pb5/1b6/n1qb1RBN w - - 0 1 illegal: No possible last move
B1r1q3/3qQ3/NPnB1r1q/1n2pR2/2r1R2R/q1Br2kb/1n3Nn1/4bKR1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 b4 Kf6 c4 Kf5 g3 h5 b5 d5 c5 e5 b6 a5 c6 h3 c7 a3 Nd2 h2 Ne2 Kg4 f5 d3 f6 h4 f7 e3 Nc3+ e2 Qb3 a2 Ndb1 a4 Bh6 h3 Qc4+ d4 Nd5 d2+ Kf2 d1R Bf4 e1N Nbc3 d3 Rg1 h1R Rc1 a1Q Rc2 a3 Na4 a2 Rc1 d2 Ndc3 h2 Qb4 Rh6 Qe7 Rf6 Nc5 Qd7 Bg2 Nh6 Na6 Nf5 Ne4 Nc6 Kf1 Nd6 Rc4 Nb5 Bf3+ Kh3 g4 Qe8 g5 Qd4 g6 a1Q g7 Qa3 g8R Qdd7 Bg3 Ng2+ Be1 Rc1 Rb4 d1N Rg5 Nb2 Rf5 Rc4 Nf2+ Kg3 Bc3 Bh6 f8B Bd2 Bd5 Be1 Be4 Qd4 Bd5 Be6 Bf3 Qdd7 c8R Rb8 Rc7 Rc8 Ra4 Ncd4 Ba8 Nc6 Rh5 Bh3 Rh4 Rd4 Rc4 Rd3 Rce4 Rd5 Qh7 Qdf7 Rh6 Rf5 Ke2 Bd2 Bd6 Rd3 Rb1 Rc1 Ba5 Rc4 Rg1 h1Q Kf1 Bg4 Bc3 Be1 Rh2 Qfe6 Rf7 Q6d7 Rf6 Rf4 Qe7 Be6 Rh7 Qh4 Rff7 Bh3 Rh5 Qf6 Rh4 Qh6 Rf6 Rg4 Rf7 Rg6 Rf5 Rf6
2b1BR2/N1Qr2rp/K2n1bq1/B1N1n1nP/3kqb2/q4R2/1q1BB1b1/2n2R2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 Ke2 Kd7 a4 Ke6 d4 Kd5 h4 c5 f4 e5 h5 g5 f5 b5 a5 e3 Kd3 c2 a6 e4+ Kc3 e2 f6 e1N a7 e3 f7 c4 Ra4 e2 Rh2 g3 Rf2 b4+ Kb2 c3+ Kb3 g4 Rg2 Qf6 Ra3 Na6 Ka4 b3 Kb5 b2 Bf4 c1N Bc7 c2 Ra5 Ne7 Nd2 b1B Ra2 Bg7 f8B Nc5 Rb2 Nc6 Bb6 Ne5 Ngf3 Nb7 Ba5 Rg8 Rg1 g2 Nb3 g3 Bfb4 Ba2 Rh1 g1B Nc5 g2 Rb3 Be3 Bd2 g1Q Rd3 Qf8 Ka6 Bf4 Ra3 Kc4 d5 Bf6 d6 Qg6 d7 Rg7 Nd4 N1f3 d8R Ng5 Nb5 Rb8 Rad3 e1Q a8B Qee4 Na7 Rd7 Rb3+ Kd4 Rf3 Bd5 Be2 Rg7 Rhf1 Qe7 Nd3 Qa3 Nc5 Nd6+ Nb7 Qef5 Re1 Ncd3 Ref1 c1Q Qc2 Qcb2 Rf8 Nc1 R3f2 Bg2 Rf3 Qe4 Qc6 Bd7 Qc2 Rd8 Qc7 Bf5 Nc5 Bfh3 Bc6 Nb7 Bcb5 Bc8 Be8 Rd5 B2b5 Rdd7 Be2 Nd6+
n5nb/2NP1bkp/1QR4n/1q6/1K4N1/1Rnrq1B1/1r1Bqq1N/2Nb1Bb1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 d4 e5 Kd2 c5 f4 b5 a4 h3 g5 c3+ Kc2 e3 Kb3 e4 g6+ Kg7 a5 c2 d5 h2 a6 c4+ Ka2 b3+ Kb2 b4 a7 e2 d6 e1Q f5 e3 Na3 e2 Ra2 c3+ Ka1 Qb6 Qd3 Qef2 Bg2 e1Q Qb5 Na6 Bd5 Rb8 a8N Nc7 Ne2 Be6 Rb2 Bf7 Bg2 Rd8 Qa6 Qb5 Nc4 Rd7 Rf1 h1N Qb6 Ng3 Nd2 Be7 Rb1 Bf6 Nf3 Qd1 Be3 c1B Nh2 c2+ Rb2 Bd2+ Nc1 Qde2 Rh1 Bdc3 Bf1 Bcd4 Bd2 Bfe5 Ng4 Rd8 Rh4 Bc5 Nh2 Rb8 Rc4 Rb7 Nd3 Bed4 Rc3 c1Q+ Rb1 Qce1 Kb2 Qee3 Nc1 Q1e2 Qa5 Rb6 d7 Rd6 Qb6 Rd5 Ka1 b2+ Ka2 Be5 Rb3 Rd3 Ra1 b1N f6+ Kh6 g7 Nc3+ Kb2 Nf5 Ra6 Kg6 Kc2 Nfh6 Kb2 Ne7 Kc2 Rb8 Kb2 Neg8 Kc2 Bc4 f7+ Bf6 f8B Bf7 Bd6 Bcd4 Rb1 b3+ Kb2 Rb7 Ka3 b2 Bg3 Rb8 Qc5 Rb7 Rc6 Rb8 Qb6 Rb7 Ra1 b1B Ra2 Bc2 Rb2 Bd1 Rb3 Ne7 g8N Kg7 Rc5 Bfe5 Nf6 Neg8 Nfg4 Bf6 Qa6 Rb6 Rc6 Rb8 Nb6 Na8 Nd5 Kf8 Qa7 Bh8 Qb6 Kg7 Nc7 Qbe5 Nb5 Qff3 Qa6 Qe3e4 Rb1 Bg1 Nc7 Qff2 Rb4 Rb5 Qb6 Q4e3 Rb2 Ra5+ Kb4 Ra2 Rb3 Rb2 Bh4 Qd5 Bg3 Qb5+
2nNR3/2p1BK2/B1PR2r1/1Bqb1r2/4n1br/BNb1nrn1/2k2b1Q/4q1N1 w - - 0 1 illegal: No possible last move
Q2B4/5q1R/3bRK2/BN3B1b/5b1N/1n1pn2p/N1r2qP1/1brqnBbk w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Ke6 a4 Ke5 a5 d5 a6 b5 a7 h5 c5 b3 f3 b4 c6 d3+ Ke3 h3 c7 d2 Ra3 b2 Ba6 h4 Ra4 h2 Qc2 d1Q Qc3+ d4+ Kf2 h3 Kg3 e3 Be2 b3 Na3 b1B Qc4 b2 Nc2 d3 Qa2 Bg4 c8N Na6 Na1 Nc5 Qb3 Qb6 Qc2 Nf6 Ra5 Bh5 Kh4 Kf4 Qd2 e5 Rb5 e4 Bf1 Nb3 Nd6 Ng4 Nc2 Rc8 Nb4 Rc2 a8B Qa7 Qe2 Qf7 Rb7 Bh6 Ra7 Rhc8 Nb5 Bf8 Qd2 Bd6 Na2 Qe1+ Qf2 Qd2 Bd5 e2 Be6 e1B Bf5 e3 Rc7 Qd1 Bd2 Rc1 Rd7 R8c2 Ba5 e2 Qg3+ Ke3 Kg5 Bd2 Qe5+ Kf2+ f4 e1B Qe8 Be3 Qa8 B1d2 Nf3 Qe2 Rg1 h1Q Nh4 Kg3 Re7 Kh2 Rd7 Qf2 Bd8 Qe8 Rh7 Ba7 Ba5 Ne3 Kf6 Qd7 Be2 Qb7 Re1 Qhg1 Bf1 Kh1 Bg4 Qbf3 f5 Qd1 Re2 Qf4 Re1 Qgf2 Bd8 Nc4 Re6 Ne3 Kg7 Bac5 f6 Q4f3 f7 Qf4 f8B Qf7+ Kh8 Nd5 Bg7 Q2f4 Bh6 Bg1 Re8 Qf2 Ba5 B2f4 Bf5 Ne3 Nac3 Ba2 Bg5 b1N Re6 N1d2 Bgd8 Bb1 Na2 Qe7 Kg8 Nf3 Kh8 Qe8+ Kg7 Ne1 Kf6 Qf7+
1r1bN3/2nqrB2/6rk/r5Rp/2Np3N/nrn1P1B1/4Bq2/1bKb1NQR w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 g4 d5 c4 f5 a4 Kf7 g5 Kg6 a5 h5 e3 h3 a6 d3 a7 d4 c5 b3 c6 b4 c7 f3 Be2 b2 Ra5 f2 Ra4 f1Q Nc3 b1R Na2 b3 Qc2 b2 Qc6+ Nf6 Nc3 h2 Qc4 f4 Qd5 f3 Qa2 f2 Rb4 Bf5 c8N Nd5 Nf3 Be7 Rb5 Na6 Nd6 Nac7 Nc4 Qd7 Ne4 Nc3 Ng3 Rhb8 Qa1 Bd8 Nh4+ Kh7 g6+ Kh6 g7 Bg6 Rg1 h1R g8B Rh2 Re5 Rg2 Rh1 Qg1 Ra5 f1R Bf7 Qf2 Rg5 Rfg1 Nf1 Be4 Rd5 Rg6 Re5 Rb3 Rg5 Rab8 a8N Ra3 Nab6 Ra5 Nd5 Re6 Nf6 Re7 Ne8 Bh7 Rc5 Rg6 Rf5 Na4 Kd1 d2 Re5 Nc3+ Kc2 N3b5 Rg5 d1N Bd2 Ndc3 Be1 Na3+ Kd2 Qf4 Bg3 Qf2 Qa2 Bg8 Bd5 Be6 Qa1 Bf5 Bg8 Bc2 Bf7 Bd1 Qa2 Ra1 Qb1 Ra2 Qa1 b1B+ Kc1 Rab2 Qa2 R2b4 Qd2 Qf3 Qe1 Rb3 Qf2 Qg2 Qg1 Qf2
B3RB1N/QrN2nK1/b3n3/1qn3p1/RN1n3p/P6k/1b1b1nr1/1B2q1qN w - - 0 1 illegal: No proof kernel
4q3/2R2rR1/1B2Qqr1/4rNp1/nq2p3/P2r2nb/1R2B1R1/kBbrK1Nn w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 h4 Kf7 c4 Kf6 f4 d5 h5 e5 f5 b5 h6 g3 a3 g2 h7 d3 c5 d4 c6 d2+ Ke2 b3 c7 d3+ Kf2 b4 Qg4 d1R Ne2 g1R Ra2 e3+ Kf3 d2 Bh3 b2 Qh5 b3 Nec3 e2 Kf2 e1R Rh2 Qe8 Bf1 Nd7 Be2 Nb6 Rh3 Nh6 Rg3 Ra7 Qh1 Na4 Rf3 Rg6 Bd3 e4 Qh3 Ke5 f6 Kd4 f7 Nf5 Qg4 Re3 Nd5 Ng3 Nbc3 b1Q Qe6 b2 Ne7 Qa1 Bb1 Rd3 Rf5 Ra5 Rg5 Re5 Rg4 Bd7 c8B Rg8 h8R Rf1+ Kg2 d1N Ba6 Nf2 Rh2 Nfh1 Rh7 Rd2+ Be2 Rf3 Kg1 Rfd3 Rh2 Rf6 Rg2 g6 Rg5 Bh6 f8R Rf7 Rg4 Rgg7 Rh8 Rg8 Rh7 Bf4 Rg7 g5 Rh4 Bc8 Rhh7 Bd7 Qg4 Kc4 Nf5 Kb3 Qh3 Rc2 Be3 Rcd2 Bb6 Bc8 Rg6 Rgg7 Rc6 Rg6 Rg7 Be6 Rc7 Bd7 Ne7 Bf5 Qh6 Bh3 Nf5 Rd1+ Bf1 Bc1 Ne2 R1d2 Kh2 Rgf6 Ng1 Rc6 Qe6+ Kc3 Bc2 b1Q Be2 Qb4 Rb2 Qbe7 Rb5 Qb4 Bb1 Kb2 Nf3 Rcd6 Kg1 Nh5 Kf1 N5g3+ Ke1 Rc6 Qc8 Rcf6 Ng1 Rg6 Bc2 Ka2 Qd7 Qab2 Qe6+ Ka1 Bb1 Q2d4 Rbc5 Qdd8 Rc2 Qf6 Rb2 Rd1#
2r1N1bq/1B4Qn/n1N2rR1/nq2Pb2/2k4n/2BR1R2/p1pR3K/rnbN4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 e4 Kc6 b4 Kb5 d4 c5 g4 a5 Kg2 f5 e5 h5 d5 a3 g5 a4 g6 f3+ Kh3 f2 g7 a2 d6 f4+ d7 f3 Qb3 a3 Rh2 Ra6 Qc3 Rf6 Bb2 Na6 Bd3 f1N Rd2 f2 Re2 Nd2 Bg6 f1Q+ Kh2 h3 Qd4 c3 Bc2 h4 Rg2 c4 Bf5 c2 Be6 c1N Qd6 c3 Bb3 c2 Bd5 Ncb3 Bc3 Na5 Bb7 Kc4 b5 Qe8 d8N Bf5 Qc7+ Bc5 Qe7 Be3 b6 Qb5 Nc6 Qe1 Kh1 h2 Rf2 Qe2 Nh3 Qh5 Rf3 Qh7 Kg2 h1N Nf4 h3+ Kh2 Ng3 Ne6 Bg5 Nc7 Bf4 Kg1 h2+ Kg2 Bh6 Ne8 h1B+ Kh2 Bg2 Rd3 Bd5 Qf7 Re6 Qe7 Nf6 g8R Rd6 Rg6 Bg8 Qf8 Qg7 Qe7 Nh7 Rf3 Qf8 Qg7 Re6 Ba8 Bg5 b7 Rf6 b8R Be3 Rd8 Bh6 Bb4 Bf4 Nc3 Nb1 Rd7 Bc1 Bb7 Bd5 Nd1 Bg4 Rc7 Nf5 Ba8 Nh4 Rd7 Bf5 Qe7 Qg7 Nc7 Rc8 Rd6 Bg8 Rd2 Qh8 Qf8 Nc3 Rb1 a1R Rb3 a2 Qg7 Rcf8 Bb7 R8f7 Ne8 Nb1 Rbd3 Rc7 Bc3 Rc8
2r3b1/NRbBr1b1/2qR1q1b/1Rp2n2/1b1B1n2/k1Pp2Q1/1R4q1/KB1Nn3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f5 d6 fxe4 Bf4 exd6 Bh6 d5 Bc1 d4 Kd2 Ke7 f4 Kd6 h4 Kc5 a4 g5 h5 b5 a5 d5 h6 e3+ Kd3 e2 h7 e1B f5 g3 a6 g4 a7 b3 f6 Kb4 f7 c5 Be2 b2 Rh2 g2 Bf3 g3 Rh1 Nc6 Qe2 Nh6 Rh2 Nf5 Be4 Qf6 Bh6 Be6 Qf1 Nce7 Bg7 Ng6 Qf3 Re8 a8B Re7 Bh6 Bg7 f8R Bg8 Nd2 b1N Re8 Na3 Nh3 g1B Rd8 g2 Rd6 Be3 Qg3 g1B Re2 Bh2 Nb3 Ka4 Na5 b4 Rf2 b3 Rb1 b2 Nc6 Bb4 c3 Nc2 Na7 Ka3 Bc6 Bf4 Bd7 Ne1+ Ke2 d3+ Kd1 Bd2 Be3 Nf4 Bd4 Bc1 Rc2 Be3 Nf2 d2 Rbc1 b1Q Rb2 Qd3 Rcb1 Qa6 Bc2 Qc6 Be4 Be6 Bc2 Ra8 h8R Bg8 Rh7 Rc8 Be4 Ng6 Bd3 Beh6 Bc2 Nf4 Be4 Ba5 Rb5 Bb4 Rb2 Nf3 Kc2 Ne1+ Kb1 Rb8 Ka1 d1Q+ Rb1 Qf3 Nd1 Qg2 Rb2 Rc8 Be3 d4 Bb1 d3 Bd4 Bh8 Rf7 B8g7 Be6 Ree8 Rfb7 Re7 Bd7 Ne2 Qf3 Be5 Qg3 Nf4 Rd5 Bb8 Rd6 Bc7
NQ1K1B2/q1rrnr2/2q2r2/n1p3R1/2n1RNPk/1p5q/b1B2brR/2B3B1 w - - 0 1 illegal: No possible last move, all moves rejected
r1N1kB2/1NqR1n1B/1n2q1bp/K3P1nb/2R1QRpN/5b1N/2b5/1qb4r w - - 0 1 illegal: No proof kernel
K1qN2bn/B1R4B/q4p1N/2rRb3/QrnN4/2nn1bP1/2p4N/B3kq1n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 Kg4 a4 Kg3 a5 Kf2 d5 c5 d6 h5 Kd5 b5 e4 h3 a6 h2 a7 f3 g3 h4 d7 b3 e5 b4 e6 f6 e7 h3 e8N b2 Qc2+ Ke1 Nc7 b3 Qd3 c3 Be3 f2 Bg5 c2 Bh6 c1N Ne2 c4 Bf4 c3 Ra5 c2 Be5 Rh4 Qa6 Nc6 Nb5 Rb4 Ned4 Nh6 Nd6 Nd3 Nf7 Bd6 Nd2 b1Q Qb5 b2 Qa4 Qf8 d8B Qa1 Bb6 b1N Bg2+ f1Q Be4 Ba6 Bh7 Rc8 a8N Qe8 Rc5 Na5 Rc7 Nc4 Ba7 Qg8 Kc6 Nc3 Rg1 h1B+ Rg2 Bb5+ Kb7 h2 N2f3+ Kd1 Re7 Rc5 Nc7 Qg4 Ka8 Qc8+ Bb8 Be8 Nce6 Bc6+ Rb7 Bd5 Ned8 Be6 Re2 Bg2 Re4 h1N Nh2 Bf3 Rh4 Ke1 Rh5 Ng4 Nh6 Bg8 Bf4 Bc7 Rd5 Be5 Rc7 Qa2 Bc1 Qa3 Bb2 Qa2 Nhf5 Nh6 Ba1 Nf7 Nh6 Nh8 Rc6 Qch3 Rc7 Qd7 Ba7 Qa3 Qc6 Qa6 Qa4 Qdc8+
R3n1bN/Rq6/1n1Bp1q1/QR5P/1rb1BK2/1nb4q/2pB2nn/N1r1B2k w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Ke6 d4 Kd5 f4 b5 h4 c5 a4 g5 h5 c3 f5 b3 a5 c4 f6 e6 f7 b2 a6 b4 a7 b3 Qf3 g3 Rh4 c2 Rh2 g4 Bg2 c3 Qf4 Bb4 f8B Nf6 Bf1 g2 Bd6 g3 Bc7 Ne8 Ba5 Ba6 Qh6 Bc4 Qf8 Qh4 Ra4 Qh3 Qf3 Nd7 Qf2 Rb8 a8R Nb6 Ne2 g1Q Nd2 b1B Ra7 g2+ Nf3 b2 Bd2 c1N Ra2 Nb3 Kf4 e3 Ng5 Bh7 Nc1 b1Q Nf7 e2 Qe1 Bg8 Ra8 Rh7 Nh8 Rc7 Ra7 Qh1 Ra3 g1N Bg2+ Nf3 Ra8 Nc5 Nb3 Qg6 Na1 Nb3 Ra2 Bf8 Bb4 Bg7 R2a7 Bf6 Bd6 Bg7 Qb1 e1N Qa2 Bf6 Qa5+ Rc5 Bf1 Q1g2 Rh1 Nh2 Bd3 Nc1 Rh7 c2 Qb5 Na4 Qa5 Rb1 Bf8 Nb6 Rha7 Rcb5 Rg1 Qh1 Rg2 Nb3 Rg5+ Kc6 Rf5 Rb4 Rb5 Rc1 Be7 Bg7 Bh4 Kd6 d5 Bc3 Bf5 Q1g2 Bd3 Qg7 Bf2 Q2g6 Bh4 Qb7 Bf2 Kd7 d6 Kc6 d7 Kd6 Bf5 Kc6 Bc5 Kd5 Bd6+ Kd4 Bg4 Kd3 Bf5+ Ke2 d8B Kf1 Bh4 Kg1 Bd3 Kh1 Bg3 Nef3 Bge1 Nh4 Be4+ Ng2+
4RbqN/3QNq2/b2p2Bb/k3pRbB/2n1N3/1K3bNP/2r2Brn/q2r4 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 c4 b5 Kc2 e5 f4 g3 a4 g4 a5 g2 a6 b3+ Kb2 d6 f5 Kd7 a7 Kc6 c5 b4 h3 e3 f6 e2 f7 Kb5 c6 g3 c7 d3 Ra2 e1Q Qf3 Ba6 c8N Nd7 Ra3 Nh6 Qf4 Qf2+ Be2 Rg8 Ra1 Nb6 Na3+ Ka5 Bd2 Nc4+ Kc1 Ng4 Ne7 Rc8 a8B Nh2 Qg4 b2+ Kd1 b1B Be4 Rg5 Be3 d2 Bg6 b3 Qd7 b2 Beh5 Be4 Ne2 Bf3 Kc2 d1R Rf1 g1B Kb3 g2 Ng3 Qe8 Ra2 b1Q+ Rb2 Rc5 Nb5 Qa1 Nc3 Qd8 Nce4 Rc6 Bc1 Qa7 Rb1 Be3 Rf2 Bf4 Be3 g1B Rf1 Rg4 Bf2 B4h6 Rc1 Bfg7 Rb1 Qg8 f8N Rc7 Bh7 Rc6 Nfg6 Bf8 Nh8 Rc8 B7g6 Qc7 Bd4 Bge3 Rc1 Beg5 Bf2 Qa7 Rc3 Bh1 Rf3 Rc6 Rf5 Bf3 Ne2 Rg2 N2g3 Q7d4 Rg1 Qdd5 Rf1 Bfg7 Rf8 Qdf7 Re8 Bf8 Bg1 Bg4 Rf5 Bf3 Bf2 Rb6+ Kc2 Rb2+ Kc3 Rbd2+ Kb3 Rc2
2B2Q1b/1N5b/r1P1n3/2q3BN/n1qbRp2/4NK1R/pNr2r2/krnr3R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 g4 Kf6 b4 Ke5 c4 a5 e4 h5 g5 d5 c5 f5 c6 a3 g6 a2 g7 h3 b5 d3 b6 Kd4 b7 d2 e5 h2 e6 a4 e7 a3 e8N h4 Qh5 d1R Nc7 h3 Bd3 f3 Nd2 Kc3 Qg6 d4 Nb3 f4 Qe4 Rd2+ Be2 d3 Na5 Bf5 Qa4 Qd6 Qb5 Ra6 Ne6 Nf6 g8R Ne8 Rg2 Bg7 Nf8 Qc5+ Kf1 f2 Nd7 Rc2 Rg3 Nc7 Nb6 Ne6 Nf3 d2 Nbc4 Bh7 Nb2 Nd7 b8N Bd4 Nb7 Nb6 Nd7 Na4 Nf6 d1N Rb1 a1B Nh5 a2 Bd3 Rg8 Nh4 Rg4 Rf3 Rg2 Nf5 Bh8 Ne3 Bd4 Nbc4 Ndb2 Bf5 Nd3 Ba3 Nc1 Rb4 Bh8 Nb2 Bd4 Rg1 h1R Qb6 h2 Rh3 Bh8 Re4 Bd4 Qd8 Bh8 Nd3 Kb3 Bb4 Bad4 Ba5 Ka3 Qf8 Kb3 Bd8 Kc3 Ne5 Kb2 Nd3+ Ka1 Bh4 Rg3 Bg5 Rf3 Kg2 f1R+ Nf2 Rd1 Re1 Nc7 Bc8 Ne6 Re2 Rhe1 Nd3 Rff1 Rf2 Ree2 Kf3 h1Q+ Ng2 Rfe1 Nb2 Qf1 Ne3 Red2 Rh1 Qfc4 Rfh2 Rf2+ Kg4 Nd3 Rh3 Rb1 Qf7 Nc1 Qf8 Rg2+ Kf3 Rd1 Qd6 Rh2 Qf8 Rhf2+
R2K4/1N3R2/NnPnpBRr/pR3rb1/Q2B2b1/1Bnrnb2/1k6/2n2qq1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 f4 Kf6 g4 h5 b4 d5 c4 a5 c5 a3 f5 Ke5 f6 e3 Kd3 e2 b5 e1Q f7 a2 c6 h3 b6 h2 g5 h4 b7 h3 g6 Qb6 g7 Rh5 Be2 Nd7 b8R Qf1 Qe1 Ngf6 g8R Bh6 f8B Bg5 Nd2 Ne4 Rh8 Nd6 Bb2 Qa7 Rb1 a1N Rb5 Nb3 Qd1 Nb6 Ne4 Bg4 Nc5 e6 Be7 Rd8 Nb7 Rd7 Ra8 Nc1+ Kc2 Ke4 Bc4 d3+ Kc3 d2 Ne2 Rh6 Rg1 h1R Qa4 h2 Nf4 d1N+ Kd2 d4 Bf6 d3 Bbd4 Rd8 Bb3 Ne3 Kc3 d2 Nd5 Rh5 Nb4 d1N+ Kd2 Nc3 Na6 Nd3 Re1 Nc1 Re2 Rh6 Rgg2 Rg1 Ref2 h1B Rg3 Bhf3 Rgg2 Ned5+ Kc2 Rd7 Kb2 Kd3 Ka3 Rgh1 Rg1 R1h5 Rg3 Ne3 Rg1 Bh3 Rg3 Bh4 Rg6 Rf5 Bd8 Nbd5 Bc5 Rf8 Qf4 Ned1 Be3 Ne8 Bc5 Bg5 Rb6 Bhg4 Qb4 Be4 Rf4 N3e2 Ka4 Bef3 Kb5 Rff7 Qe4+ Kc3 Qa4 Kb2 Bg1 Nec3+ Kc5 Rf5 Be7 Re5 Rf7 Rd6 Bf6 Rf5 Nd8 Qc7 Nb7 Rd7 Bf2 Qh2 Rb5 Qhg1 Be3 Ne7+ Kb6 Rd3 Bc5 Nd6 Kc7 Nec8 Bcd4 Nb6 Kd8 Ne3
1n6/R2Np2K/r3b2B/1B1b1P2/3nbb1p/1q1B1bk1/n2NrN1q/2rR1Q1B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 a4 Kf5 f4 d5 g3 h5 c5 b5 c6 h3 c7 b3 a5 b4 a6 h2 a7 d3 Ke3 b2 Qf3 h4 Qg2 Kg4 Qf2 b3 Qg2 d2 Qf2 d1N+ Kd4 e3 Ke5 d4 Ke4 d3 Nh3 e2 Ra3 e1R+ Be3 d2 Ra2 Qd6 Bd3 Re2 Qf1 Be6 c8B Nh6 Bd7 Nf5 B7b5 Nd4 f5 Bh6 Nf2+ Kh5 Rg1 Bf4 g4+ Kg5 Ra5 Rc8 Ra1 Rc1 Ra3 Kh6 g5+ Kh5 g6 Qc7 g7 h1B+ Qg2 Qc2 g8N Qc7 Re1 Qc2 Qf3+ Kg5 Nf6 Bg2 Nc3 b1Q Nd7 b2 Rh1 Qa2 Nb1 Qab3 Ra2 Bh3 Qg2+ Bg4 Qf1 Bh3 Na3 b1B Nc4 Bg4 Ra1 Bh5 Ra6 Bhf7 Ra2 Ndc6 Ra5 Nc3+ Kf3 d1B Nd2 Na2 Ra3 Kh6 Kg4 Nd4 Ra5 Bd5 Ra6+ Bfe6 Ra5 Kh7 Kh5 Qc7 Bdc4 Bbe4 Bd3 Be5 Bg5 Bf4 Ra6 Kg7 Rg1 Kf7 Kh6 Qe5 Kh7 Qd6 Bh6 Qe5 Nf8 Kf6 Rh1 Qc7 Rg1 Ke5 Rh1 Bg5 Nd7+ Kf4 Ra5 Kg3 Ra4 Bf4 Ra6 Re3 Ra3 Bdf3 Ra6 Nbc6 Ra4 Re2 Ra3 Rg8 a8B Nb8 Ra7 Rg6 Ra6 Qcc2 Rb6 Qd1 Nh3 Bb7 Rg1+ Bg2 Ra6 Bec6 Ra7 Bf7 Nf2 Rd6 Rh1 Be6 Qg1 Qe1 Nh3 Qf2 Qd1 Qg1 Nf2 Qh2 Rf1 Bh1 Qe1 Bcg2 Qd1 Ra6 Rg1 Bbd5 Bac6 Bc4 Bf3 Bcd5 Re1 Re3 Qe2 Re4 Rd1 Re5 Qf1 Re2 Bh5 Bge4 Bg4 Bhg2 Bf3 Bh3 Bg2 Bg4 Bh1 Bgf3
BN5n/n2Pnknb/8/b2p3r/rR2Nrp1/1K2Q1RR/1q1B2n1/1q2N1Rb w - - 0 1 illegal: No possible last move, all moves rejected
1B2nNrq/3p2N1/q3R3/2KQbnRB/1qbB2B1/r3Ppkb/2b3b1/2Rn4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 h4 Kf5 c4 g5 a5 b5 a6 d3 c5 d2 a7 b3 c6 f3 Ke3 g3 Kd4 Kg4 c7 f5 h5 b2 h6 f2 h7 f4 e3+ f3 Bc4 f1B Bb3 b4 Rh6 g2 Nh3 g1Q Re6 Nf6 Rd6 Rg8 h8B Bca6 c8R Bac4 Na3 b1B Rc7 Bf5 Rdc6 Kg3 Nc2 g4 Re6 Bg7 Nf4 Nc6+ Kc5 Ne7 Bb2 Bg2 Rc1 Qf1 Nd4 Ne8 Ng6 Be5 Nf8 Qe1 Ba2 b3 Rb7 Bc2 Rb5 Nf5 Bc3 b2 Bb4 Rb8 a8B b1B Bd5 Ra8 Ba5 Qf1 Bc7 Ra3 Bb8 Qa5 Bf6 Qh1 Bg7 Qa6 Bb3 Qh8 Be4 Nh6 Bg6 Nf5 Bf7 Ba2 Bh5 Bcf1 Bd5 Bac4 Ra5 Bb1 Qb3 d1N Qb7 Bc2 Be4 Kh2 Qd5 g3 Rb5 Bh3 Bd3 g2 Ra5 Ng3 Bf5 g1Q Bfg4 Bfg2 Nf5 Qe1 Bf6 Qc3 Ng7 Nf5 Rb5 Bc7 Bd4 Kg3 Rbb6 Bf4 Rg6 Qb2 Rg5 Be5 Re6 Qb4+
1b3BR1/1nP1Rq2/4R1bK/n2b1q1N/1k1p4/1n2qB1N/2rp1rBQ/1R3qq1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 d3 c4 Ke7 e4 Kd6 a4 Kc5 g4 b5 g5 h5 a5 d5 a6 f5 e5 f3 Ke3 b3 Kf4 h3 g6 h2 e6 d4 a7 b2 e7 b4 Kg5 f4 g7 h4 Na3 b1Q Nh3 f2 Qe1 f3 Qd1 b3 Nc2 b2 Bf4 Nc6 Be3 Bf5 Ra3 Qe8 Qd2 Nh6 g8R Rc8 a8R Nf7+ Kf6 Bg6 Ra1 Nfd8 Kg5 Na5 Nf4 h3 Rb8 Ndb7 Ne1 Rc7 Rg1 h1B Neg2 h2 Be2 Qc1 Re1 Qf7 e8B b1Q Bc6 f1N Re8 Bd6 Re7 f2 Bg4 Rh3 Nh5 Rf3 Ngf4 Qc3 Qc2 Kb4 c5 Nd2 Nh3 f1Q Qa2 Qbc2 Rab1+ Ndb3 Bd2 Rc8 R1e6 Bb8 Bd5 Bg2 c6 h1Q Be4 Qhg1 Be3 Rd8 c7 Rd6 Qb2 Rc6 Qa2 Qce1 Bd5 Qc5 Qb2 Bh1 Qh2 Qc2 Be4 d2 Bd5 Rf2 Be4 Bf3 Bd5 Be2 Bg2 Bc4 B4f3 Bd5 Kh6 Qe8 Kg7 Qf5 Bg5 Qe3 Bf6 Qee2 Kh6 Rc2 Bg7 Qef7 Bf8 Qe3+
1r2NRb1/p2Bn3/1B5k/3bb2B/1K4B1/NPqbb1pn/1rQ1N1q1/2Rn2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 c4 Kf7 e4 Kg6 h4 d5 h5+ Kh6 e5 g5 c5 a3 b3 f3 c6 f4 c7 d3 Kc3 d2 e6 f2 e7 a2 e8B g3 Nf3 d4+ Kc4 g2 Bd7 g1R Be6 d3 Rh2 g4 Rh4 g3 Nh2 f3 Rf4 Na6 Qc2 d1N Re4+ d2 Beh3 Rb8 Bfg2 f1B+ Re2 f2 Nf3 Qf6 Bg4 Nb4 Na3 Ne7 Nd4 Nbd5 B2f3 Be6 c8B Bg8 Bcd7 Nf4+ Kc5 Rh7 Re4 Qg7 Ne2 Nh3 Rf4 Qh8 Rb1 a1B Bb2 Bg7 Rc1 Be5 Rf8 Bf4 Be5 Be3+ Bd4 Rf7 Kc4 Bc3 Bc5 Be5 Bb6 Bg2 Kb4 f1B Nc3 Bd3 Ne2 Kh7 h6 Bh1 Ba8 Rf2 Baf3 Kg6 h7 Kh6 Bh5 Bg2 Bfg4 B2d5 Rd8 Qf6 h8N Qf3 Rf8 Qg2 Rf5 Nc3 Rf4 d1Q Rf8 Qd2 Nf7+ Kg7 Nd6 Nd1+ Ka4 Qc3 Ne8+ Kh6 Nd4 Rd2 Ne2 Qc6+ Kb4 Qc8 Qc3 Rb2 Qc2 Qc3+
2r1r3/p2b2Qq/1B4bp/1PNKB1Nr/Nk1NB3/Rnrq4/3rR3/n3b2q w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 e5 f4 Ke7 b4 Kd6 c4 e3 Kd3 a3 Ke4 h3 g4 d3 g5 d2 g6 a2 f5 e2 f6 e1R+ Be2 h2 f7 Nh6 g7 Ng4 g8N Ne3 b5 Kc5 Qb3 d1B Bg4 d5+ Kd3 d4 Ke4 d3 Bh3 d2 Nh6 Nc6 Bg2 Nc2+ Ne2 N6d4 Qg3 Nb3 Rf1 h1R Qg6 Rh3 Rf2 Qd6 Qg7 Bd7 Bh1 Be7 f8B Bh4 Be7 Kb4 c5 Rhe8 Nf7 h6 Bg2 Reh1 Bd8 Qg6+ Kd5 e4 c6 e3 c7 Qh7 c8N R1h2 Ng3 e2 Nf5 e1Q Bb6 Qe3 Ncd6 Bh5 Nb7 Rac8 Ng5 Bg6 Re2 d1R+ Bd2+ Qc3 Be4 Bf2 Nc5 Rg3 Nd4 Rh5 Bf4 Rd2 Nb7 Qe3 Nc3 Rf3 Rh1 a1Q Na4 Rg3 Rb1 Qf3 Rb2 Qah1 Ra2 Nca1 Nbc5 Be1 Be5 Qc3 Ra3 Qc2 Nge6 Rc3 Ng5 Qd3
nkN1R3/1rr1rbB1/2q2RNN/1p3Rr1/4BRQ1/2P2b1p/1rr5/Krb1n3 w - - 0 1 illegal: No possible last move, all moves rejected
n1n2k2/bR3b1p/qB1N2b1/b2rB2B/bpKP1NNQ/5b2/3R2rr/1b4B1 w - - 0 1 illegal: No possible last move, all moves rejected
2qbn2b/Nnq2QR1/2R5/k3r1n1/r1K2B2/3p2qp/RBPN2B1/2q2brR w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 b5 a4 e5 f4 d5 g4 Kd7 g5 Kc6 a5 h5 g6 d3 a6 Kb6 f5 e3+ Ke1 d4 a7 d2+ Ke2 e4 g7 b3 f6 h3 f7 b4 Ra4 h4 Nf3 b2 Ra3 h2 Bg2 b3 Ng5 d3+ Kf1 e2+ Kf2 e1N Ke3 Be7 f8B Nc6 Bf3 Bh3 Nc3 b1R Rg1 h1Q Bg4 b2 Rg3 Nf3 Ra4 Qh2 Bc8 Nf6 g8R Ne8 Ba6 Bf1 Nb5 h3 Ne6 Ng5 Rg7 Rh5 Bb7 Qc8 Rg4 Qhc7 Ra2 Bd8 Bd6 Na5 Kd4 e3 Qf3 d1Q Bf4 e2 Nc5 e1B Rg1 Bc3+ Kd5 Qd2 Nb3 Qf2 Nd2 Qg3 Rh1 Bcf6 Bc6 Nb7 Kc4 Ra1 Qd5 b1Q Bb2 Qc1 Qf7 Be5 Rh7 Bh8 Rg7 Rb8 a8R Rb1 R8a4 Ra8 Rb4 Ra3 Na7+ Ka5 Rb3 Nh7 Rb6 Re5 Rg6 Ng5 Rg7 Nc5 Ba8 Nb7+ Rc6 Nc5 Qf8 Be2 Rb6 Qf1 Bg2 Nb7+ Rc6 Qg1 Nf3 Qe3 Nh2 Rg1 Nf3 Qc1 Qf7 Bf1 Nd2 Ra4+
R2N2n1/B4Rrn/n1brN3/1q2Br2/qbk2KRP/1R6/Q1p1p3/1B2r1bq w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Ke6 f4 Kd5 d4 b5 a4 e5 h4 c5 f5 g5 a5 b3 f6 b4 f7 b2 a6 b3 a7 c3 Ra6 c2 Qd2 g3 Bg2 g4 Qa5 Qe8 Rf6 Rh7 Rb6 Bd7 Rf6 Rg7 Rf2 Na6 Re2 Rd8 a8R Bc6 Qb4 c4 Qd2 c3 Nf3 Kc4 d5 Rd6 Bf1 g2 Nd4 g1N Ne6 g3 Rh3 g2 Nd8 Nf3 Rg3 Be7 f8R Ng5 Rg4 Nh7 Rf7 g1B+ Ref2+ Kb4 Na3 b1Q Bh3 b2 Nb5 Kc4 Nc7 Qa2 Bg2 b1Q Bb2 c1R Nce6 Qa4 Ba1 Rf1 Qa2+ Qbb3 Bb2 Qd7 Bf3 Qb7 Bd1 Bf8 Bc2 Qbb5 Bb1 c2+ Kd2 Qb7 R2f3 Qab5 Bd4 e3+ Ke2 e4 Ba7 Qa4 Rfg3 Rf5 Rh3 Rd7 Rhg3 Bb4 d6 Rc7 d7 Rg6 Ng7 Rd6 Nge6 Qbb5 Nb7 Qd5 d8B Rcd7 Bc7 Qab5 Rf6 Rg7 Nbd8 Qa4 Rf3 Qdb5 Rf7 Qd5 Kf1 e2+ Kg2 e1R Kg3 Qd1 Rg6 e3 Rg4+ Kb5 Bcb8 e2 Bc7 Qbd5 Rb3 Qh1 Bcb8 Qdd5 Bc7 Rfg5 Kf4 Kc4 Bcb8 Qdb5 Bc7 Rd3 Be5 Rd6 Rf6 Rh5 Rf7 Rf5+
2RQ1B1R/1Nn2R1q/1n3q1n/2BBnRq1/3K3p/3b1b2/rkp2rP1/r1b1N3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 a4 Ke6 e4 Ke5 a5 Kd4 e5 f5 a6 b5 d3 c5 a7 h5 e6 b3 e7 h3 e8R c3 Qe1 b2 Nd2 b1N Re5 h4 Ra3 f3 Nc4 b4 Qe2 c2 Rb3 h2 Bf4 c1N Rc3 b3 Qd1 b2 Nd2 c4 Re8 Qg5 Re2 Na3 Re5 b1Q Qb3 Bh6 Be2 Nd7 Rc2 c3 Nc4 Nb6 Nd6 Nb5 Nb7 Nc7 Ra5 Rh7 Bd6 f4 Rf5 Rf7 Bf8 Bd7 Qa3 Bc6 Qe7 Bd5 Qd8 Rf6 Ke1 f2+ Kd1 f1B Bf3 Rf7 Be4 f3 Rf2 Ke3 d4 Bd3 Ke1 Bc6 d5 Kd4 d6 c2 d7 Kc3 Bd5 Kb2 Rf1 Qa2 Kf2 Qc4 Rd1 Qe4 Re1 Qee7 Re4 Rf6 Rc4 Qh7 Rc3 Nb3 Bc5 Nd2 Bf8 Ndc4 Bc5 Rb8 a8R Ne5 Rc4 Rd6 Rf7 Rf6 Bf8 Rf4 Ke3 f2 Nf3 f1Q Ne1 Rf2+ Kd4 Rc8 Rg1 h1R Rc3 Qgg7 Rc4 Bc1 Bc5 Qg5 Rc3 Qe2 Rf1 Qf3 Rc4 Qff6 Rc3 Re2 Rf5 Nh6 Rc4 Ne8 Bf8 Rc7 Rc8 Rf2 Ra4 Rhf1 Raa8 Rg1 Ba2 Bce4 Bd5 Bf3 Bc5 Rc6 Qc7 Bf4 d8B Bfe2 Bde7 Bf3 Rd8 Nbd7 Rac8 Ra6 Qd6 Nc7 Rh8 Rh1 Bf8 Nb6 Qd7 Ra2 Qd8 Bfe2 Nf3 Rha1 Ne1 Bf3 Qe7 Bd2 Qd8 Bc1
N2kbBr1/qR4n1/3bB2n/1N1rq3/PKB3p1/Q2rp1Bn/5q2/bb1RN3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e5 h4 d5 a4 b5 f4 g5 c4 d3 h5 d4 c5 e3+ Ke1 e4 f5 d2+ Ke2 g3 f6 g4 c6 g2 h6 b3 h7 b2 c7 b4 Rh2 b3 Na3 b1B Bb2 Qd6 Nc4 Nc6 Ra2 Ra5 Bc1 b2 Rh3 Rd5 Na5 Qe5 Rh4 Bd6 Nc4 Nh6 Rh1 Bd7 c8B Rg8 h8N Kd8 f7 Ne7 f8B Be8 Nf3 g1B Qb3 d1N Qa3 Nf2 Be6 Nh3 Nb6 Nef5 Ne1 Ng7 Na8 d3+ Kd1 e2+ Kd2 Bd4 Rg1 Bc2 Rh1 b1Q Rb2 Qa2 Rb7 Ba1 Bb2 Qd4 Bc3 Qg1 Be5 Qa7 Bg3 Bb1+ Qb2 e3+ Kc3 d2 Rg1 Rc5+ Kb4 d1R Qa3 Qd5 Rh1 Qe5 Rg1 Bb8 Rh1 Rd7 Rg1 Rcd5 Nf7+ Kc8 Nd6+ Kd8 Nb5 Rd3 Bc4 R7d5 Bg2 Bc7 Be4 Bb8 Bf5 Bc7 Be6 Bb8 Ng2 Bc7 Rd1 e1Q+ Rd2 Qf2 Rd1 Bb8 Ne1 Bd6+
r3kq2/4q2r/K1bQ1p1b/1P1B1N2/N4NR1/b1R1n3/rpq3n1/nqB2RR1 w - - 0 1 illegal: No proof kernel
k1r1r1br/B3q3/Q1n2p1P/B1R1q3/1nn1qp2/B1b1b2B/3rK2N/1R2N1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 Kd7 e4 Kc6 b4 Kb7 h4 a5 d5 c5 b5 g5 h5 a3 b6 g3 d6 c3 d7 c2 e5 g2 h6 g4 e6 c4 e7 f6 e8R g3 Qh5 a4 Nc3 a2 Qh2 a3 Nb5 c3 Re4 Nc6 Re7 Ne5 Nc7 Nc4 Ne2 g1B Qh5 g2 Qf5 Be3 Qg5 g1Q Re4 Qe7 d8B Be6 Nb5 Qg2 Bb2 c1N Rg1 c2 Re5 Qe4 Ned4 Nd3+ Ke2 c1R Nf3 Nb4 Rb1 a1R Nbd4 a2 Nh2 Rb8 Qg7 Ka8 Bh3 Rc8 Qg4 Rd1 Ndf3 Rd7 Rc5 Rd2+ Kf1 Bf7 Ba3 Bd5 Ne1 Be6 Rc1 Rb1 Rd1 a1Q Qe2 Qae5 Rc1 Rb3 Rb1 Rbd3 Bc7 Rdd8 Qd3 Re8 b7+ Ka7 b8B+ Ka8 Ba7 Q7d6 Qb3 Ne7 Qa4 Na2 Qa6 Bg8 Rcb5 Nc6 Ba5 Qd8 Ng4 Bb4 Nh2 Bc3 Rd5 Qde7 Rc5 Rd1 Ke2 Nab4 Bb2 Rd4 Ba3 Rd2+
1b6/1Qrq3r/2p1q2R/R1n2B2/n1bNRNK1/Np2b3/n1r1r2P/BNk1q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Ke5 d3 Kd4 e5 g5 a5 f5 a6 b5 e6 g3+ Kf3 g4+ Ke2 c3 e7 c6 e8R g2 a7 b3 Qe1 b4 Ba3 c2 Re5 c1N+ Kf2 g3+ Kf3 b2 Re7 b3 Re3 Ne7 Ra2 Ba6 Nc3 b1Q Ne4 Nc8 Rc2 Na2 Nh3 g1R Rf2 g2 Bb4 Nd7 Rc2 Bc4 Bd6 Nc5 Rce2 Qd7 Qb4 Nb6 Nc3 Nba4 Qb7 Rc8 a8N Qe1 Nb6 Rc7 Re6 Rh7 Nb1 Bg7 Be7 Be5 Rh6 Qe6 Re3 Qd1+ Be2 Re1 Bf6 g1B Bh8 Bf2 Rg1 Qd2 Rg5 Bg1 Bd1 Re2 Bc2 Qd1 Nd2 Kc3 d4+ Kb2 d5 Bf2 d6 Kc1 Re4 Be3 d7 Qe1 d8N Qd1 Nb1 Qdd7 Nf2 Bd6 Ba1 Be5 Kg2 f3+ Kh3 f4+ Rf5 Bd6 Kg4 Be5 Nh3 f2 Bd3 f3 Nf4 f1R Bc2 f2 Bd3 Bd5 Nc4 Rd1 Bc2 f1Q Nca3 Rdd2 Bd3 Qe1 Bc2 Qef7 Nde6 Bc4 Bd3 Rc2 Nd4 Ne6 Rfh5 Bd6 Ra5 Nec5+ Ree6 Qfe7 Bf5 Qee8 Re4 Qee6 Kg5 Rc8 Kh5 Bb8 Kg4 Rc7
2B1qnr1/4RBqN/1rp2n2/2KbP3/br1nN3/4p1Q1/n1qBk2B/2R2Nb1 w - - 0 1 illegal: No proof kernel
4b1Q1/4rB2/p1n2bbR/Prpnq3/kNq1B2K/nrB2N2/R2q1n2/B6R w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 Kf2 h5 e4 c5 a4 f5 g4 d5 b4 Kd7 a5 Kc6 g5 Kb5 e5 h3 g6 h4 g7 a6 e6 h2 e7 h3 e8B+ Nc6 Bd2 d4 Bf7 f3 Kg3 f4+ Kf2 Nge7 g8R Qe8 Qe2 Rh7 Be6 Nd5 Bd7 Re7 Qe1 Bg7 Qc1 Bf6 Qc3 Rb8 Na3+ Ka4 Qc4 Rb5 Bf5 Bd7 Bc3 d2 Bg4 d1Q Bd2 d3 Bc1 d2 Bb2 Qb8 Bh5 Be8 Rf8 Qe5 Bf7 Qc2 Be2 d1B Rh8 Qd2 Bc3 Bc2 Rh6 Bh7 Ra2 Bg6 Kf1 f2 Nf3 Nb6 Qd5 Nc4 Nc2+ Na3 Qd8 Qed6 Bd3 Qe5 Rg1 h1R Be4 h2 Kg2 f1N+ Kh3 Ne3 Qc8 Rbb7 b5 Nd5 b6 Rb8 Rga1 Rb1 b7 h1N Nb4 Rb2 Qg4 Rb3 Qg5 Nf2+ Kh4 Rc8 Rh1 Rb8 Ne1 f3 Ba1 Rd8 b8B Rdd7 Bc3 Rb7 Ba1 Rb5 Bc7 Qf5 Bce5 Qe6 Beb2 Qe5 Bc3 Nd3 Rh3 f2 Nf3 f1Q Rh2 Nf2 Rh1 Bh8 Qg1 Qc4 Qg3 Bh7 Qg7 Bg6 Qg8 Bf6+
q7/1BN2P2/qRr3nR/Q3bb2/B6n/bq2rrRK/n1RpN2p/Bq1k4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Kf6 g4 h5 Kg2 e5 c4 d5 a4 b5 c5 d3 c6 d4 c7 e3 f5 Kg5 a5 Kf4 f6 b3 g5 d2 f7 e4 g6 h3+ Kh2 b4 g7 e2 a6 Ke3 a7 e1R Ra3 h4 Ra5 b2 Rb5 d3 Rb7 b3 Qc2 Nh6 g8R Bf5 c8R Nc6 Rd7 Qf6 Rb8 Ne7 Na3 b1Q Rb6 b2 Rg5 Rc8 a8B Ng6 Bg2 Rc6 Nf3 Ke2 Qc4 d1Q Qa2 d2 Qb3 e3 Qa4 Qb3 Qe4 Kd1 Qd4 e2 Nb5 Ba3 Qe5 Re8 Qd4 Rf1 Rg3 e1B Qc4 Re3 Nfd4 Rff3 Ne2 Qd6 Nc7 Qdd3 Qd5 Qa6 Kg1 Bf2+ Kf1 h2 Bb7 h3 Qe5 Qa5 Rd6 Qa6 Rg1 h1Q Qa5 h2 Bh3 Bc2 Bd7 Nf5 Rf6 Nfh4 Re6 Rc4 Ba4 Rc6 Rf6 Bf5 Rd6 Qa2 Re6 b1N Bb2 Nc3 Ba1 Qb1 Rd6 Na2 Rf6 Rc4 Rfc6 Rc1 Rc2 Rf4 Rh3 Qhd5 Rg5 Rff3 Rhg3 Qd8 Rh5 Qda8 Rh6 Rd3 Rb2 Rc6 Rc2 Rfe3 Rg4 Bg3 Rg5 Nf3 Kg2 Rdc3 Rg4 Nfh4+ Kh3 Rf3 Nf4 Rce3 Ne2 Be4 Rg5 Be5+ Rg3 Bf5+
b1b3Nr/k1b1np1q/3q2rB/r1n3P1/n1Q3p1/4q1N1/3NnB1R/KBR3B1 w - - 0 1 illegal: No proof kernel
Kn2bBr1/2rn1pR1/1q3r1p/2bNk3/1n1q1q1R/2R2P1B/Q2N4/Bq3bR1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 Ke2 Kd7 Ke3 Ke6 d4 b5 a4 c5 g4 c4 g5 h3 f3 h6 a5 h2 a6 c2 g6 b4 g7 b3 a7 c3 Ra4 b2 Qd3 Bd7 Ra5 Be8 Ra1 Nf6 Kf4 e3 g8R e2 Rg7 e1N Nh3 Rg8 Qd2 Nd3+ Ke3 Kd6 d5 e5 Nf4 e4 Kd4 e3 Ra4 e2 Bh3 e1R Rhg1 Re7 Kc4 Rd7 Kb5 h1B Qf2 Ke5 d6 Bg2 Be3 c1Q Bc5 Qd1 Nd5 c2 Rh4 c1Q Qd2 Re7+ d7 Qc8 Kb6 Qd8+ Kb7 Bf1 Qa5 Qg5 Qa2 Qf4 Ba3 Qda4 Nd2 Qad4 Bb4 Qa5 Bc3 Re6 d8B Bc5 Be7 Nb4 Bf8 b1Q Ba1 Nfd7 Qb3 N8a6 Qa2 Rc8 a8R Rf6 Ra7 Nab8 Ka8 Qb6 Ra3 Rcc6 Rc3 Rc7
1bn2qBr/QBq1p3/rP2bNRr/8/1nN1nk1p/1Rbq4/4R3/B2R1b1K w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 Kf2 Ke6 g4 d5 Kg2 h5 b4 a5 c4 a3 g5 Kf5 g6 d3 b5 a4 g7 a2 b6 d2 c5 d4 c6 e3 c7 a3 Ne2 d3 Qa4 d1B Rg1 d2 Kh1 h3 Qa6 h2 Bb2 Nf6 g8B Ne4 Bg2 Bh6 Qb7 Nc6 Nec3 e2 Nb5 e1B Bf7 Be6 c8R Qf8 Rf1 Be2 Rf3 d1Q N1c3 Qd3 Rd1 a1N Qa7 a2 Na3 Bf1 Nc4 Nc2 Bg8 a1Q Nd5 Qc1 Nf6 Bc3 Ba1 N2b4 Rf2 Bg5 Re2 Bh4 Rd8 Bg3 Rd6 Rh6 Qc7 Ra6 Qa7 Nd4 Bf3 Nb5 Rc6 Nbd6 Bg2 Kg6 f5+ Kg5 Bf3 Nc8 Rd6 Nd2 Bb7 Ne4 Rc6 Bb8 Rd6 Qdc2 R6d3 Q2b1 Rg3+ Kf4 Rg6 Qbc2 Ne8 Bf6 Bb2 Rh8 Ne5 Q1b1 Ba1 Qc7 Nc4 Bd4 f6 Qg7 f7 Kf5 f8R+ Bf6 Rf7 Qf8 Rh7 Kf4 Rhh6 Be5 Nf6 Qc2 Rg3 Bd4 Rb3 Bc3 Rg6 Qd3 Red2 Be2 Kg2 h1R Rdb2 Rh4 Kg1 Bf1 Re2 Rg4+ Kh1 h4 Rh6 Rg5 Rg6 Rgh5 Ng4 R5h7 Nf6 Rh6
3R1nNq/Pn2p3/1rR2N2/1b5n/2r1q3/N2p1rQB/b2BkbK1/Bq3Nn1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Ke6 a4 Kf5 c4 d5 a5 b5 g3 h5 c5 d3 c6 d2 c7 d4 a6 h3 a7 h4 Na3 h2 Nh3 e3+ Kf3 e2 Qa4 d1Q Ng5 e1N+ Kf2 Kg4 f5 d3 f6 h3 f7 Nd7 Nc4 b3 Na3+ b4 Bg2 b2 Bc6 b1B Nc2 Nf3 Na3 Nh6 Ne6 Nf5 Qa5 b3 Qe5 b2 Qe3 Rh4 Nc5 Nd6 Ne4 Bh6 f8B Ba6 c8N Ba2 Nd2 b1R Bg7 Nf8 Nb6 Ng1 Nf1 Nb7 Bd2 Bb5 Bg2 Rb3 Qe1 Qb1 Nd5 Rc8 Qe3 Rc4 Be5 Bg7 Bb2 Bd4 Nf6+ Kf5 Bbc3 Rh7 Bb2 Rf7 Bbc3 Qd5 Bb2 Qe4 g4+ Ke5 g5 Kf5 g6 Bc5 Nh7 Kg4+ Bf6 Bc6 g7 Rb6 g8N Bb5 Ng5 Qb4 Rc1 Qb1 Nh7 Bd4 Ng3 Bc5 Kf1 Bd4 Qe1 Bf2 Ba1 Rf3 Rc3 Ne2 Rg1 h1N Rc1 h2 Bh3+ Kh4 Rg2 Ng1 Nhf6 Qh7 Ngh5 Qe4 Rg7 Ng3+ Kg2 Ra4 Rc6 Rc4 Nf4 Nh5 Ne2 Qe3 Rg5 Qe4 Ng3 h1Q+ Kf1 Ra6 Rd5 Rb6 Rd8 Qh2 Ne2 Qhe5 Ng3 Qeb2 Kg2 Qbd4 Nd7 Qdb2 Nf1 Qh8 Bdc3 Kg5 Ndf6 Kf4 Bd2+ Re3+ Kh2 Kf3 Kh1 Bh4 Qg3+ Ke2+ Kh2 Rf3 Kg2 Qf5 Qg4 Bf2 Qg3 Qe4
BR1nb3/N1N5/r1R5/nnq2Q1b/1bp3RN/p1R2K2/k1r1P1n1/2nrB2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 b4 Ke6 d4 Kd5 g4 h5 b5 a5 b6 f5 g5 c5 g6 c3 g7 Kc4 b7 a3 d5 a2 d6 a4 d7 a3 Qd4+ Kb3 Nh3 c2 Ng5 f3 Qf4 h3 Nh7 h4 Qg5 h2 Ke3 h3 Qe7 f2 Nc3 f4+ Ke4 f3 Bg2 f1N Nb1 f2 Qe8 Qg5 d8N Na6 Bb2 c1N Bf3 Ne3 Nf6 f1R Nc3 Ng2 Ng4 Nh6 g8R Bd7 Nf6 Nf7 Nh7 Rd1 Qe5 Nc7 b8R+ Nb5 Ne6 Ra6 Nc7 Be8 Qf5 Nd8 Rb1 Bd6 Nf8 a1N Ng6 c4 Rc8 Bb4 Nh4 Qh5 Rf1 h1B Rg4 h2 Rb8 Rg8 Rb6 Rg6 Rc6 Rgd6 Rg1 R6d2 Rg3 Na7 N3b5 Rc2 Bc3+ Ka2 Be1 Nab3 Rh3 Na5 Rb3 Nf4 Rg4 Bg2 Ke3 h1N Bd5 Be4 Rb1 Bd3 Kf3 Ng2 Rg3 Qg5 Rb3 Qe7 Rc3 Qf8 Rg8 Qc5 R3g4 Nc8 Be4 Nd6 Na7 Nb5 Rh8 Bh5 Rf8 Ndb7 Rb8 Nd8 Rh6 Be8 Ba8 Bh5 Rc6 Be8 Qg5 Bdg6 Qf5 Bh5
3bNNb1/1k3b1n/b1NBQ2K/n2R2p1/nr6/1P3NR1/1bp1BrB1/q3b1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 d4 Kc6 h4 g5 e4 f5 h5 a5 b3 c3 e5 g3+ Kf3 g2 e6 c2 d5+ Kb7 d6 c5 d7 a3 h6 a2 h7 c4 e7 a4 e8B a3 Qd2 c3 Bh5 Nc6 Qf2 Na5 Be3 c1N Bg6 c2 Ne2 g1R Qg2 Be7 Ng3 Nf6 Ne4 Rf8 h8N Nd3 Qh2 Nh7 Nf6 Nb2 Be2 Na4 Nd2 Rb8 Rb1 a1B Ng4 a2 Bd4 Bc3 Be5 a1B Bd6 Bab2 Qh6 Qc7 Bf7 Bd8 Rh3 Bb4 Rg3 Qc3+ Ne3 Qe5 Nec4 Qd4 Qe6 Qa7 Ne4 Be1 Ne5 Qd4 Ra1 Qd1 Ra2 Qa1 Bh5 Rf6 Nhg6 Rf7 Bf1 Rf8 Bg2 Rf7 Ke2 f3+ Ke3 f2 Nf8 f1B Nf3 Be2 Nf6 f4+ Ke4 Bc4 Kf5 Bd5 Kg6 Bc4 Nd4+ f3 Kh6 Bd5 Ra3 f2 Be2 f1B Ne8 Rf2 Nf3 Bc4 Qf6 Bg8 Qe6 Ka7 Ra2 Rb4 Ra3 Ba6 Ra2 Bb6 d8N Bc4 Nc6+ Kb7 Ra3 Bd8 Ra2 Bd3 Ra3 Bg6 Ra2 B6f7 Ra3 Qb1 Ra1 Qa2 Rd1 Qa3 Rd5 Qa1 Bd1 Bb5 Be2 Ba6
2QR1n2/r2nn3/1b1q2Rn/2p4R/1bbP1BBr/BN3KnB/2pN4/r3k1n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 Kd4 h5 g5 e5 f5 d3 b5 a5 c3 e6 b3 e7 b2 e8R g3+ Kf3 c2 h6 g2 a6 g4+ Kf2 g3+ Ke2 b4 a7 b3 h7 f3+ Ke1 f4 Ra5 f2+ Ke2 f3+ Kd2 Qd6 Rf5 Nf6 Rhh5 Nfd7 Rf6 Ba6 Rfh6 Bc4 Be2 f1N+ Ke1 Ne3 Rh2 f2+ Kd2 f1N+ Ke1 Nf5 Nh3 g1N Bf4 g2 Kf2 N1g3 Rg6 Nh6 Nd2 Kc3 Bg4 b1R Ng5 b2 Ngf3 Ra1 Rd8 b1N Nb3 Be7 Rh3 Nf8 Nfd2 Nbd7 Rh5 Qd5 Qf3 Bb4 Ke3 Qd6 Qf1 N1e2 Qd1 g1B+ Kf3 Bb6 Qf1 c5 Qh3 Rb8 a8B Rb7 Bg5 Rba7 Bf4 Ngf5 Bd5 Neg3 Be6 Ne7 Bef5 Rg8 h8B+ Rg7 d4 Rh7 Bhe5 Rh8 Be6 Kd3 Be3 Nc3 B5f4 Nce2 Ne4 Bc3 Bc1 Bb4 Ned2 Kc3 Ba3 Rh7 Qh1 Rh8 Bh3 Kd3 Beg4 Ng1+ Kf2 Rh7 Qc6 Rh8 Qc8 Rh7 Nf3 Rh8 Kg2 Ke2 Nfd2+ Ke1 Qa6 Nhf5 Qc8 N1e2 Rhg5 Rh4 Rh5 Nh6 Kf3 Ng1+
2R1r3/1n6/k1b1BpP1/1R1q1N1n/p2bn2R/2rrR3/2nnBB1n/K1Qb1N2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 d5 b4 Kd7 e4 Kc7 g4 Kb6 c4 h5 Kc2 a5 Kb2 d3 c5+ Ka6 e5 a3+ Ka2 a4 e6 h3 g5 d4 e7 h4 e8R f3 c6 f6 c7 f2 g6 h2 Re6+ Nc6 Qf3 h3 Be3 Bd7 Nd2 Rc8 Bg2 f1N Ne4 d2 Qg4 d1B Qe2+ d3 Bd4 Nh6 Nf2 Bc5 Rc1 Ng4 Qe3 d2 Bf3 Re8 Ka1 a2 Ne2 Bb6 Qf4 Na5 Re3 Bc6 Ne4 Nb7 N2g3 Qd5 Nd6 Ba7 Ndf5 Bb6 Kb2 a1N Qg5 Nc2 b5+ Ka5 Be2 Ba7 Rg1 h1N b6 Nhf2 Rh1 h2 Qh6 Ne4 Rb1 Rb8 c8B Ra8 Be6 Rac8 Rf3 Rc7 Bf2 Rcc8 Re3 Rc7 Rg1 h1N Rg2 Rcc8 Rh2 Rc7 Rh4 Ngh2 Bg4 Ka6 Be2+ Bb5 Qg5 Rc4 Ka2 Bc6 Rb5 Rc3+ Kb2 Nd8 b7 Bd4 b8R Nb7 Nh5 Nhg3 Rc8 Rd8 Nhg7 Nh5 Ng3 Re8 N7f5 Nf3 Bd3 N1h2 Nf1 Be2 Qf4 d1R Qc7 Rd2 Bc4 Bd1 Be2 Rdd3 Qf4 Nce1 Ka1 Nfd2 Qc7 Bd7 Qc5 Bc6 Qa3 Ba7 Qb2 Bd4 Qc1 Nc2+
q1k2bKR/2npbr1p/n6b/6bb/R2NP3/BRr1n3/4Nr2/Q1bBR2B w - - 0 1 illegal: No proof kernel
3r1N1k/2n2Prr/6b1/1nr3bQ/b2r2B1/bb1NNpKp/1RRBq3/5RN1 w - - 0 1 illegal: No proof kernel
n1b1B2n/RN1P1pN1/2r5/1K1N1qR1/3b1b1p/1Q1n3B/1b3r1N/Bnn1k1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 Ke4 b4 a5 b5 h5 e3 c5 d5 f3 d6 h3 g5 h2 d7 h4 g6 a3 g7 a4 b6 f2 b7 a2 Ba3 Rh6 Bc1 a3 Qa4 Rc6 Qa7 Ne7 g8N Ng6 Ne7 Nh8 Be2 f1N Nd5 Nd2 Qa4 Na6 b8N Qg5 Qd1 Nc7 Bf1 Qf5 Ne2 Kf3 e4 Kf2 Qb3 Ke1 Rg1 h1N e5 Nf2 e6 Nd3 e7 Bh6 e8B Be3 Rg7 Bg1 Rg2 Ra4 Rg3 Na8 Bb2 Ra5 Bh3 Rb5 Kc2 c3 Nef4 c4 Na6 Ra5 Nh5 Rac5 Ndb4 Re5 Nd5 Re2 Nc5 Rf2 Nb7 Nb4+ Kc1 c2 Nbc3 Nb1 Ne3 Qh7 Ncd5 Qf5 Be5 Nd2 Rb1 a1B Nf1 a2 Rg5 Bc3 Ng7 a1B Rb2 Nb1 Ra2 Nd2 Ra7 Nb1 Bf6 Be5 Nh2 Bg3 Qf3 Bae5 Nc3 Bgf4+ Kb2 c1B+ Ka1 Bd6 Nd5 Bc5 Qb3 c3 Be5 Nd3 Bf6 Nb2 Ka2 Bb6 Qc4 c2 Kb3 Bbe3 Kb4 Nd3+ Kb5 Ba3 Bb2 c1N Ba1 Bb2 Qb3 Bed4
4rB2/b1qr2n1/1B2r3/4q3/N2Rq2Q/NB2pbP1/p1BnrR1r/3NkrK1 w - - 0 1 illegal: No possible last move, all moves rejected
R2B2k1/N3n2b/1B1b4/2Nb4/rqBn1Rrp/3R3p/1P1Rq2K/Qq1b2bb w - - 0 1 illegal: No proof kernel
2Q1qb1r/B2Bn1N1/4bRr1/n1n1b2q/2Rp2bb/4Kbp1/2PN2Nk/1N2R3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 f4 Kf5 a4 b5 h5 g5 a5 e5 a6 b3 a7 d3+ Kd2 b2 h6 b4 h7 b3 Qe2 g3 Qf3 e3+ Ke1 e2 Kd2 e1N Be2 g4 Ke3 g2 Ra4 d2 Rh3 d1B Ra3 e4 Bd3 Ne7 Rg3 Qe8 Nd2 b1B Bf1 b2 Rc3 Nd3 Rc4 Nbc6 Ne2 Nc5 Nc3 Ba2 Ncb1 g1B+ Qf2 d6 Bh3 Na5 Rf3 Bh2 Qe1 Rb8 a8R Rb6 Ra6 Rc6 Rf1 Bf3 Qg3 Be6 Re1 d5 Qf2 Bb3 Qe2 Ba4 Qd3 Rd6 Qc3 Bad7 Rc6 Kg6 f5+ Kh5 f6 Kh4 f7 Be5 Rb6 Kg3 Ra6 Kh2 Rc6 Rg8 h8N Bc8 Ng6 Rh8 Nf4 Bcd7 Na3 b1Q Ng2 Bc8 Bb2 Qd1 Nab1 Bcd7 Qb3 Bc8 Qb8 Bcd7 Bd4 Bc8 Kf2 Bcd7 Qc8 e3+ Kf1 e2+ Kf2 Na4 Ba7 Nc5 Rb6 Rc6 Ke3 Rd6 Rg1 e1B Rc6 B1g3 Re1 Bh4 Rb6 g3 Bg4 Bfg7 f8N Rc6 Bh3 Beg4 Ne6 Bf8 Ng7 Rg6 Rf6 Bde6 Nc3 Qa1 Ncb1 Qaa4 Ne4 Qf7 Ned2 Qae8 Nh5 Qh7 Ng7 Qh5 Qb8 Bf7 Qb7 Bc8 Bf5 Bd7 Qc8 Bg8 Be4 Bdg4 Bf5 Bf7 Bd7 Bg8 Ne4 B8e6 Ned2 d4+
N2Rq2B/3n3b/R2R1NBk/rB2p2P/4bnRb/r2p3r/b1b2Kb1/1q2Q3 w - - 0 1 illegal: No proof kernel
b1r1B2n/4b1rk/2rn1B2/Q2p1Nnp/R7/1n4RN/qPBr2n1/R1Rb3K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 a5 g4 d5 Kg2 f5 c4 Kf7 e4 Kg7 c5 h5 c6 f3+ Kh2 a3 g5 f2 e5 a4 g6 h3 e6 f4 e7 f3 e8R d3 c7 d2 Bc4 f1R Qb3 d1B Qd3 f2 Bg5 a2 Nd2 a3 Re5 Be7 Qb1 Na6 Bh4 Nh6 Bg3 Nf7 Nb3 Rh7 Nc1 Nh8 Qd3 Bb7 c8B Nc5 Re3 Qa5 Qb3 Ne4 Rb1 a1N Ba6 a2 Qa3 Ng5 Bf5 Nb3 Bb5 a1R Be8 Rc8 Re4 Ba8 Bh4 Kg8 Rc4 Rg7 Bc2 Qa4 Qc5 Qa2 Nce2 Re1 Ng3 Re6 Qa5 Rec6 Rc1 Rb1 N1e2 f1N+ Kg1 Ne3 Nf5 Ra1 Ra4 Ng2 Nf4 Rb1 Bf2 Ra1 Bd4 Rb1 Bf6 h2+ Kf2 Ra1 Nh3 Rb1 Re1 h1N+ Kg1 Ng3 Kh2 N3e4 Kh1 Nd6 Rg1 Rf7 g7 Kh7 g8R Ra1 Rg6 Rg7 Rf1 Ngf7 Rgg4 Ng5 Rg3 Be2 Rce1 Rd1 Rg1 Rd3 Ra1 Rd2 Rgc1 Bd1
brN3n1/2N3K1/4q1Bb/2Pn1bn1/p2B4/n2p2N1/1RqR2nN/2k1BnQr w - - 0 1 illegal: No possible last move
4r1RQ/1N1N1b1R/2NbnBpn/1b3rr1/r2RK1Pp/1b1q4/1n5b/2kNB3 w - - 0 1 illegal: No proof kernel
R2n1r1k/2Q3b1/5npn/3Bn2b/N1rBP1N1/3p3n/1KbBnRBq/qR6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 c4 Kf7 Kc2 d5 e4 a5 b4 d3+ Kb2 a3+ Kb3 d4 h4 g3 h5 a2 c5 a4+ Ka3 d2 c6 f3 h6 f4 h7 g6 c7 Kg7 Be2 f2 Qb3 f1N Nc3 d1B Bc4 f3 Nce2 g2 Bd5 f2 Rh3 d3 Rh1 Ne3 Qc4 f1N Qc6 Ng4 Bb3 Nd2 Qc5 Nc6 b5 Qd6 b6 N8f6 b7 Nh6 b8R Bc2 Rh2 Bg4 c8B Bh5 Bb2 Nf3 Nc3 Nd8 Bd5 Ne5 Nf3 g1N Rf2 Nh3 Rb1 a1N Bc1 Nb3 Kb2 Nd4 Bd2 Ne2 Nh2 Rg8 Qc4 Kh8 Qc7 Bg7 Ng4 Rf8 Bd7 Ra6 Ra8 a3+ Ka2 Nf5 Na4 Rc6 Ka1 a2 Kb2 Rc4 B7e6 Nf3 Bc8 Qh2 Bd7 Ne5 B7e6 Bh6 Bd7 Kg7 h8B+ Kh7 Bc8+ Bg7 Bg5 Nh6 Ka3 Ne8 Rf7 Nf3 Bd2 Nf2 Ne5 Kg8 Bg4 Nh3 Kb2 Bf6 Bg7 Nfd4 Bf3 N4c6 Bc3 Kh7 Ng4 Be5 Bf6+ Kg8 Bg5 Bg7 Bd4 Kh8 Bg2 Ne5 Rf2 Nf6 Bd2 a1Q+
1q1n3K/1b2bq1R/BN1p2nN/1rB1n3/N1B2k2/1P1nR1p1/1rqN3n/5nQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Ke4 a5 Kf5 g5 h4 f3 c4 g3 e4 a3 h5 a4 h6 a2 b3 d3 h7 g2 Rh5 d2 Na3 g4 Qe2 d1N Rh3 f2 Rh4 g3 Nf3 g1N Bd2 Bb7 Be1 Nc6 Bh3 f1N Nb1 a3 Qg2 Nf2 Nfd2 Nh2 Nc3 Nd3 Na4 Rb8 Bf2 Ngf3 Re1 a1Q Qg1 a2 Re3 Qb2 Bf1 a1Q Rh3 f6 Kg6 Ke5 c5 Kf4 e5 f5 e6 d6 e7 Qc2 e8B Be7 Bf7 Nfe5+ Kg7 Qc7 Bd5 Nd8 c6 Qac3 Bc4 Qb4 Be2 Bg5+ Bf7 Bc8 Nc3 Ne7 Rf3+ Kg4 Qe1 Rf8 h8N f4 Rh7 Qa2 Bf1 N7g6 Na4 Nc1 Ba6 Ncd3 Ne4 Qc4 Bb6 Be7 Bc5 Rb5 Qg1 Qb8 c7 Bb7 c8N Qb2 Ncb6 Qd5 Re3 f3 Re1 f2 Re2 f1N Re3 Qd2 Bg8 Rf6 Nf7 Rf2 Nh6+ Kf4 Be6 Qd1 Kg8 Rb2 Nd2 Qc2 Bf7 Nf8 Kh8 Qe6 Bg8 Qf5 Be6 Qf7 Bc4 Nfg6#
1K2B3/3Rr1B1/pk1n2Rr/n1r1R1Q1/1p1rNRPB/nr5N/nb4b1/4b2q w - - 0 1 illegal: No proof kernel
3N3r/BBnK1n2/p1b2qq1/BN1P1p2/1n2k2N/4r1bn/2N1nRR1/1n2qQ2 w - - 0 1 illegal: No possible last move
N1B1BR1b/n1b1B1Qp/1R5p/2qb4/n1P1n2N/4r3/1nrk1r2/K2bNn1B w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 h4 fxe4 h5 a5 h6 axb4 Qe2 gxh6 Qg4 Bg7 Qd1 Bf8 Kd2 Kf7 c4 Ke6 Kc2 Kf5 Kb2 d5 a4 e5 f4 b5 a5 d3 a6 e3 g4+ Ke4 a7 d2 f5 d4 g5 d3 g6 e2 f6 Ke3 g7 e1B f7 b3 Nf3 b4 Ra2 e4 Nh4 Qb6 Nc3 Qc5 Ng6 Bb7 Nh4 Bg3 Ra3 Nf6 g8B Bc7 Na4 Nc6 Nf3 Bg7 Ka1 b2+ Ka2 b1N f8N b3+ Kb2 Nc3 Nb6 Na4+ Ka1 b2+ Ka2 b1N Ng6 Re8 a8B Na7 Rb3 Bd5 Be6 Rhf8 Bc6 Bh8 Ba3 Rf7 Qc2 d1B Na8 Nd2 Bg2 Nf1 Rb6 d2 Qb2 Ke2 Bc8 e3 Qe5 Ne4 Ne1 Rf2 Nh4 Rg8 Rh2 Rg5 Bh1 Rgg2 Rh3 Rh2 Be8 Rhg2 Nef3 Kd3 Qe7 e2 Qg7 e1R Ka1 Re3 Ne1+ Ke2 Bf7 Bb3 Rb8 d1N Rb4 Rf6 Qg6 Qb5 Rf3 Ndb2 Be8 Bd1 Qg7 Qc6 Rb3 Rf8 Be7 Qc5 Rf5 Rh2 Rb6 Rf6 Nef3 Kd3 Rf4 Rc2 Ne1+ Kd2 Rf3 Rg6 Rf4 Rg2 Rf8 Rf2
8/rNBb2pn/1p5r/2b1R2n/q4bR1/bN1PQNb1/Bn4nB/r1K2k1N w - - 0 1 illegal: No possible last move
B1K2b2/1q1RBP1N/6Bn/1b4R1/pB3q2/n2rQ1b1/4Nprk/r1bbbR2 w - - 0 1 illegal: No proof kernel
R2n1nkB/B2B1p1b/2R5/Nq6/1r2bNn1/4PNp1/K1n2nBb/1bQ2r1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 c4 d5 Kc2 b5 Kb3 g3 h4 d3 a4 d4 a5 d2 a6 g2 h5 g4 a7 d3 c5 f3 h6 f2 c6 Bf5 c7 Be4 c8N Ne7 e3 Nec6 h7 Qa5 Be2 f1R Ra2 Nd7 Ra4 Bd6 Nh3 Kf8 Ba3 g1N Ng5 Rb8 a8B Nf3 Qc2 d1N Bc1 d2 Qc4 Nd8 Qe6 Ne1 Rh6 Nc2 Nc3 Bh2 Qc6 g3 Nd5 Nf2 Bb2 d1N Na7 Ng4 Ka2 Ndf2 Nf4 Qb6 Bd4 b3+ Kb2 b4 Bb5 Qc5 Nf3 Qg5 Qc7 Qe5 Bbc6 Qb5 Bc5+ Kg7 Rd6 Nf8 Bd7 Rb7 Nc6 Rb8 Ba7 Rb6 Ne1 Rb8 Kb1 b2 Na5 Rb7 Ka2 b1B+ Kb2 b3 Nf3 Rb8 Rc6 Rb6 Kc3 b2 Ra1 Rg8 h8B+ Kh7 Qc8 Rg6 Bb7 Rh6 Qc7 Kg8 Qc8 Nb4 Kb3 Bbd3 Qc7 Nc2+ Ka2 Rh3 Qd6 Bh7 Qc5 Bde4 Qc4 Qh5 Qc3 Rb4 Qd2 Qc5 Qc1 Qb5 Bbc8 Nh6 Bc5 Bg1 Kb1 Qa6 Nb7 Rh1 Bh3 Rb5 Bg2 Rb4 Bd7 Qb5 Ra8 Bh2 Na5 Nhg4 Ka2 Nh3 Bcd4 Nhf2 Ba7 b1B+
1RRN3K/nb1nBp2/4qnn1/2r5/NN1b1rB1/3BP1p1/1r4bk/1NrnQ3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 h4 Kf5 c4 d5 c5 b5 c6 g5 c7 g3+ Kf3 d3 e3 g4+ Kg2 d4 a5 b3 a6 b2 a7 d2 h5 b4 h6 d3 h7 b3 Ra5+ Qd5+ Nf3 Nd7 Ra3 Bg7 Qe2 d1N Ra5 d2 Ra6 Bb7 c8N Qe6 Nb6 Ngf6 Rg1 Nc3 Qe1 d1N Na4 Rhc8 h8N Rc5 Rb6 Nb5 Ng6 Ke4 Nd4 f3+ Kh1 f2 Kg2 Rg8 a8B Na7 Ne5 Rgc8 Bc4 f1R Nc2 Rf4 Nc6 Kf5 Rb4 Kg5 Rb6 Kh4 Nb4 Bh8 Bd3 Rc7 Nd2 b1B Ba3 b2 Rf1 Ba2 Nb1 Rc8 Rf2 Bb3 Rc2 Bd5+ Kg1 Kh3 Nd8 g2 Rc1 Ba6 Rb8 Bf3 Bae4 Bb7 Bf5 Bfd5 Nd2 b1R Rc4 Rb2 Nb1 Bf3 Rc2 Nc3 Kf2 g1N Ndc6 Nce2 Nd8 Kh2 Rc1 Nc3+ Rc2 Kh1 Kg3 Nd1 Kh4 g3+ Kg5 Bg2 Kh6 Kh2 Bg4 Nf3 Rc1 Nh4 Rc4 Nd5+ Kh7 Bd4 Rc1 N5f6+ Kh8 Rcf5 Rc6 Rc5 Rc7 Rc1 Rc2 Rc5 Rc3 Rg5 Rcc8 Rb5 Nd5 Ra5 Be7 Rac5 Nb4 Ng6+
B3bNkr/K2n1p2/4pRnn/rq2R1N1/8/n2RQ3/1B1PBB1q/1n2bn1q w - - 0 1 illegal: No possible last move, all moves rejected
1kn2rq1/rn1p2NR/n2n2B1/4bN2/r1pB2b1/PbN1bn2/2R1K3/1Q3B1B w - - 0 1 illegal: No proof kernel
NR5R/Pp2bn1n/1rR1n2r/1Nq5/1bQp1B2/5r2/bRBB4/r2K1bkr w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 c4 Kd6 a4 Kc5 h4 g5 h5 f5 a5 d5 a6 b3 h6 f3 h7 f4 e5 d3 e6 Kd4 e7 g3 e8R g4 c5 b2 c6 f2+ Kd2 g2 c7 f3 Qc2 g3 Nc3 b1R Nd1 Qg5+ Re3 Nd7 Ra2 Be7 Nh3 g1N Be2 f1R Ndf2 g2 Ba3 Ne5 Rh2 Nf6 Qc1 Rb6 Rb2 Bf5 c8R Nf7 Nd1 f2 Bf3 Ne2 Rb8 g1B Nc3 Nf4 Be4 Ne6 Nf4 Ra7 Re1 Bg6 Kd1 d2 Bc2 Bb4 Ba4 Bb1 Bc2 Be7 Bd6 Qh5+ Nfe2+ Ke3 Na4 d4 Bb4 Qc5 Nec3+ Kf3 Rh5 Kg2 Nb5 Bh2 Ba5 Ra8 a7 Bhd6 Rh4 Kg1 Bc3 Rf8 h8B Nh7 Be5 Rh8 Bf4 Rf8 Ke2 d1R Rh5 Rh8 Ba5 Rd3 Bad2 Ra3 Kd1 Ra1 Rc8 Rb8 Rc6 Rbg8 Rh2 Rg6 Rh4 Rh6 Rh5 Ra6 Nb6 Rf8 Na8 Rb6 Bg6 Qg5 Rh3 Bb4 Qc4 Qc5 Be4 Rg8 Bf5 Rg3 Bc2 Rf3 Rh5 Kg2 Rh4 Rh1 Rh3 f1B Re5 Bc3 Rd5 Kf2 Rd8 Kg1 Rb8 Bb4 Rh5 Kg2 Rd5 Kf2 Rdd8 Kg1 Rh8 Ba2+
n5kn/p4Nnb/2P1n2q/4p3/1Kr4N/1RBr2RR/b1BbRb2/Nr1n3Q w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 d5 f4 h5 b4 e5 c4 h3 f5 a3 b5 d3 Kc3 e3 b6 d2 f6 d4+ Kb3 d3 g5 a2 c5 h4 b7 h2 Ka4 e2 Kb4 e1B Bh3 Be6 Bf5 h3 Na3 Nd7 b8R Bh6 Nf3 Qf8 Ng1 Bf2 Qf1 d1R Ka4 d2 Ne2 Nb6+ Kb5 Ne7 g6+ Kg8 g7 Ng6 Rd8 Rb8 Kb4 Na8+ Nb5 Bg5 Rb1 a1N Nd4 Nb3 Nc2 Nd4 Rd7 Ba2 Na1 Ne6 Bb2 Rc1 Rd5 d1N Bc2 Bd2+ Bc3 Rh5 Rd3 Nh8 Rb3 Qd6 Rg1 h1B Rg2 h2 Rh3 Qc6 Rgg3 Be4 Qh1 Bh7 Rg2 Rc8 Nd6 Rb1 Nf7 Rf5 Rgg3 Rf3 Rg2 Rd3 Rgg3 Qg2 Re3 Qg6 Re2 Qh6 c6 Rcd8 Qg2 h1N Qf1 Ng3 Qe1 Be4 Qh1 Kh7 g8R Nh5 Rgg3 Nhg7 Nd6 Rd5 f7 Rc5 f8N+ Kg8 Nf7 Bh7 Ng6 Rd3 Nh4 Rc4+
3K1b2/pPN1n1B1/4b3/1qQpN2b/1qnRbrb1/br1B1R1R/2B3nR/2k5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 d5 c4 h5 b4 f5 e4 d3 g4 d2 c5 h3 c6 h4 b5 f3 c7 f2 b6 h2 b7 a3 Bb2 f4 Bd4 h3 Qc1 d1B Qc6 f3 Qe6 a2 Nc3 Qe7 Bb5 f1Q Bd3 f2 Nb5 Qb4 Qb6 Nd7+ Ke6 Kf4 e5 Ne7 g5 Bh5 Rd1 a1B g6 Bb2 g7 Ba3 Qc5 Nb6+ Kf6 Rb8 g8R Be6 c8R Nc4 Rg2 Rg8 Bb2 Rg3 Nc7 Re3 Bc2 Rb3 Rd4+ Ke3 Nf3 Ke2 Bd3+ Kd1 Ba1 Kc1 Rg3 Bh6 Rh8 Rg8 Rh7 Rg4 Bc2 Bf8 Rh8 Bf5 e6 Rf4 Ne5 Bhg4 Rf3 Bh5 Rg1 h1B Rgg3 h2 Rh3 Qd3 Rh6 f1N Bc3 Bhg4 Kf7 Qe2 Ke8 Nfe3 Kd8 Bg2 Rh7 h1B Rh2 Bf1 R7h3 Ng2 Ba1 Qd3 Bc3 Be2 Ba1 Ng8 e7 Be6 e8B Ne7 Bg6 Bh5 Rfg3 B2g4 Rf3 Nd6 Bc3 Qdb5 Bgd3 Nc4 Be1 Rf5 Bh4 Rf4 Bf6 Nge3 Bg7 Bg2 Rf2 Be4 Rff3 Ng2
rn1N3b/nb2B3/2R1r3/QN1r1qn1/Bp3n1P/1nN3p1/4q3/1KRr1kNB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 h4 f5 a4 b5 a5 d5 c5 f3 a6 d3+ Kb2 Kd4 e5 g3 e6 d2 c6 Ke3 c7 Kf2 e7 f4 e8B g4 a7 d4 Qb3 d1R Qf7 b3 Ra6 g2 Qg6 g3 Ra5 d3 Ka1 d2 Rh3 b2+ Ka2 b4 Rc5 Qf6 Rg5 Bg7 Bd7 Rh6 Rb5 Ne7 Rd5 Bh8 Qc2 Bb7 c8N Nec6 Qd3 Qf5 Rd6 Re6 Nc3 b1N Qb5 Ke1 Qb6 f2 Ne7 f3 Bb5 f1Q Qa5 f2 Ba4 Qe2 Rh1 f1N Be8 Nh2 Kb2 Nd4 Nc6 Na3 Nd8 Kf1 Bec6 Nab5 Be4 Nhf3 Rc6 Nb3 Kb1 Nd7 Qc7 Ng5 Qa5 Rc8 a8N Na7 Nc7 Ra8 N7b5 Nb8 Na3 Re1 Nab5 d1R Rc5 Rd4 Rc4 Red1 Rc6 R1d3 Bf4 Rd5 Bd6 Rd2 Nf3+ g1N Bc5 Kg2 Be7 N1h3 Rc1 Nf4 Ng1+ Kf2 Rc2 R2d3 Bh1 Kf1 Rc1+ Rd1+
rB2q3/4B1r1/1r3R1K/4QP1p/BNbNr2k/b3b1qB/1pn1N3/2nbb2R w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 e5+ Ke3 Kg5 d4 b5 a4 h5 a5 h3 f4+ Kh4 f5 c3 d5 b3 g5 b2 g6 b4 d6 c2 d7 c4 g7 c3 a6 b3 a7 h2 Qd4 Nh6 g8B Na6 Qa4 Nc5 Bg2 Ba6 Na3 b1R Nb5 Qe8 Bc4 Rh7 Bb2 c1Q+ Kf2 e3+ Kf3 c2 Nd6 e4+ Kf4 Rg7 Bg8 Bc4 Bd5 Qe1 Bc6 c1B Qa5 Ng4 d8B+ Be7 Bd4 e2+ Be3 Qc3 Ba4 e1B Bh3 Ba3 Bc1 e3 Nb5 e2 Nd4 Ne3 Bb2 Bf6 Be7 Nc2 Qc7 Qd3 Bc3 Rb2 Qe5 Rb1 Ba5 Qc3 Bc7 Nd3+ Ke4 Nc1 Bb8 Qg3 Ra2 Ba5 Rb2 e1R+ Nge2 Ne3 Rd2 Nc2 Rd3 Bg5 Rc3 Bb5 Rc6 Bc4 Rf6 Be3 Bbd6 Rb8 a8N b2 Nc7 Rb6 Nd5 Ra1 Nef4 Re2 Bb8 Be1 Nb4 Rf2 Rg1 Rf3 Nfe2 h1B Qb5 Bg2 Rh1 Rf4+ Ke5 Bc6 Qd5 Ba6 Ke6 Re4+ Qe5 Bc4+ Nd5 Bh6 Bb5 Bab4 Ng1 Ra8 Ba4 Ba3 Nb5 Rf4 Nd4 Be2 Nb4 Bd1 Nge2 Re4 Rf8+ Rg5 Kf6 Rgg4 Rf7 Bg5+ Kg7 Bd5 Rf6 Be3+ Kh7 Rg5 Kh6 Be6 Qc7 Bc4 Qe5 Rg7+
R1b1N2r/3n4/QB1qP1R1/pK1nN2n/pn2b1r1/b5Bk/qbN3n1/4NB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 d5+ Kb5 a5 b4 g5 c4 d3 c5 g3 c6 Kg4 e4+ f3 e5 f5 e6 d2 c7 f4 h5 d4 h6 g2 h7 d3 Rh3 Na6 Qb3 d1N Nc3 f2 Rh6 f3 Be2 f1N Nb1 d2 Qd3 Nf6 Rh2 Ng3 Ra2 Qd6 Bf1 f2 Qa3 Ne3 Nf3 g1Q Ne1 d1N Qd3 Ned5 Be3 Nd7 Bb6 Nh5 Na3 Qg2 Nac2 N1e3 Rh1 Rg8 h8N Qgh2 Ra3 Ng2 Nf7 Kh4 Qc4+ g4 Ne5 Bg7 Qe2 g3 Rc3 Kh3 Rg1 Bh8 Rf3 Rg4 Rf8 Bb7 c8N Bf6 Ne7 Bc8 Nf5 Rb8 Ng7 Ra8 Nf7 Bb2 Ne8 Ba3 Ne5 Bb2 Qc4 Ba3 Bd3 f1B Qc6 Be2 Bc4 Bf3 Bf1 Be4 Qb7 Nac5 Qa6 Nd3 Rf7 N7c5 Ra7 Rb8 Ra8 Nd7 Kc4 Bb2 b5 N3b4 Ba7 Bb7 b6 Rd8 Kb5 Bc8 b7 Ba3 Nc7 Rh8 b8B Qb6+ Kc4 Rg7 Bd3 Qh1 Ne8 Ngf4 Ng6 Qh2 Na1 g2 Bf1 Qf2 Bb6 Qa2+ Kb5 Qg3 Bc4 Bb2 Nac2 Ba3 Rf1 g1B Be2 Bf2 Rg1 Bd4 Rg2 Bdb2 Bf1 Qh2 Rg5+ Ng2 Rg4 Qc7 Rg5 Qb7 Bg3 Qc7 Ne5 Qd6 Rg4 Rf7 Rg8 Rf4 Rg6 Rg4
k4K2/4nR2/r1r1p2Q/b3npq1/1rNnqn2/n7/BNP1RBb1/RR3Nr1 w - - 0 1 illegal: No proof kernel
6rn/1N1R2qq/3prPr1/3n1Nr1/2b2N1N/BBk3q1/K2bR2p/qR2Q2r w - - 0 1 illegal: No possible last move, all moves rejected
qr1n2N1/3q1R2/q1pb3q/rRPpk2B/nBqN4/K1R3R1/b7/1B1Qr2r w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 d5 f5 d6 fxe4 Qd3 exd6 Qe2 d5 Qd1 d4 Kd2 Kf7 g4 Kf6 a4 h5 f4 b5 c4 c6 Kc2 b3+ Kb2 h3 f5 b4 c5 h2 g5+ Ke5 f6 h4 g6 e3 g7 h3 f7 d3 a5 d2 a6 e2 a7 e1R Ba6 Bd6 f8R Nh6 g8B Nf7 Qf3 d1Q Bf1 Qb6 Ra2 Nd8 Ne2 Qa6 Rg1 h1R Bg5 h2 Rg3 Qdd3 Bc1 Qdc4 Bh7 Rg8 Nd2 Rh8 Kb1 b2 Ra3 Rg8 Rc3 Rh8 Kc2 Rg8 Ne4 b1Q+ Kd2 b3 Rf7 b2 Nf6 Qf5 Nd4 b1Q Qd1 Qbb7 Be2 Qab5 Rgd3 Rg2 Kc2 Qa2+ Bb2 Bc7 Qc1 Rhg1 Bg6 h1Q Rg7 Qh6 Qd1 Rh1 Nh7 d5 Rd7 Bd6 Rf7 Qbc4 Nf6 Nd7 Ng8 Rb8 a8R Nb6 Ra5 Qa8 Rb5 Q2a6 Ba3 Qfh3 Kb2 Bf5 Rf3 Bb1 Bb4 Qd7 Rg3 Rgh2 Bc2 Rf2 Bh5 Rf3 Rd3 Ba2 Bb1 Rfe3 Rc3 Rf3 Rc2 Ra3 Rc1 Ra5 Rcc3 Na4+ Ka3 Q6b7 Nf6 Qb6 Ng8 Qba6
2b5/n2KNRpb/qRQb1q2/p3qN2/6rR/1Pq4b/1RB2B1n/1bkr1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 c4 d5 h4 f5 h5 a5 c5 d3 c6 d4 h6 d2 h7 Ke3 c7 f3 b3 d3 Rh5 a3 Rh3 g3 Nc3 g2 Rh4 a2 Nh3 g1Q Rb1 a1Q Na2 f4 Bb2 f2 Nc1 f3 Rf4 Qgg5+ Kb6 Bb7 Ng1 Nc6 Qc2 d1B Rf7 Qdf6 c8N d2 Kc7 Na7 Bh3 f1Q Bf5 f2 Nf3 Ba3 Nh4 Nh6 Bc3 Rd8 h8R Ng4 Bh7 Nh2 Bd4+ Kf4 e4 Qa6 Bb6 f1B e5 Rd4 e6 Ke3 e7 Bh3 e8R+ Be7 Rd8 Qge5+ Rd6 Bdg4 Bc5 d1B Ne2 Bf5 Ng3 Bdf3 Qg2 Qc3 Rb2 Bb1 Bc2 Bfe4 Rh6 Bh7 Nf1+ Kf4 Nf5 Rb8 Nb6 Rd8 Nc8 Rd1 Qd5 Bf8 Qc4+ Kf3 Qe6 Ke2 Rh4 Rd4 Qe8 Rg4 Qd7 Qee7 Rb6 Qee5+ Nfd6 Be7 Qc6 Ke1 Bf2+ Ke2 Be4+ Kd1 Bd3 Kc1 Bc2 Qeb5 Nf5 Rd1 N5e3 Qbc5 Nf5 Bd6+ Kd7 Q5e5 Nce7 Bc8+
k2n2N1/B3pr2/4P2B/p1R1Bb2/b1q1N2B/q2N1Kb1/R2q3b/bn1r1q1Q w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Bh6 h4 Kd2 h3 Bg2 hxg2 Ke1 fxg6 Bf4 g5 Bc1 g4 e4 g5 Ke2 d5 c4 Kd7 b4 Kc7 f4 Kb7 h4 a5 h5 d3+ Ke3 a3 c5 d2 e5 g3 b5 g4 f5 d4+ Ke4 a2 b6 d3 f6 Bh6 f7 Bf4 f8B Qd6 h6 Nc6 h7 Nd8 Qe1 d1Q Rh5 d2 Nf3 g1Q Bh6 g2 Qf1 g3 c6+ Kb8 b7 Qgc5 Ne1 g1Q Qf3 g2 Nd3 Bg3 Nc3 Qgf1 Nd5 g1B Nf6 B1h2 Qh1 Qc4+ Ke3 Bg4 e6 Qa3 Rc5 Bf5 c7+ Ka7 c8N+ Kb8 Rb1 a1B Nd6 Qdc2 Rb4 d1B Rb2 Qcg2 Bd2 Ba4 Nde4 Ra6 Rc2 Rd6 Be1 Ka7 b8B+ Ka8 Ba7 Rd5 Nd7 Nf6 Ra2 Rf8 h8B Rf7 B8g7 Qgb2 Bf2 Rd4 Kf3 Nd5 Ndf6 Qd2 Ng8 Nc3 Be5 Qc2 Ne1 Rd1 Nd3 Qd2 Bh8 Nb1 Be5 Qg1 Be1 Bf4 Bh4 Bfg3 Bef4 Qge1 Be5 Qf1+
Qqb1R1B1/2Pp4/1Bqqp2k/1r2rR2/1rq2n2/qNr2B2/Nb2Rn2/2R1K3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 a4 Kg6 c4 h5 g4 b5 a5 e6 a6 d3 g5 b3 a7 b4 c5 e3 c6 d2+ Ke2 h3 c7 h4 Qe1 b2 Qd1 h2 Nf3 h3 Ra2 b3 Ra6 Rh5 Ra4 Nf6 Rb4 Ne4 Nd4 Bg7 Nf5 Nf2 Nh6 Nc6 Rd4 Ne5 Bg2 Qf8 Nc3 b1Q Re4 b2 Nf5 Qa3 Bf3 Ned3 Na2 Qc2 Rg1 b1Q Nd4 h1Q Nb3 Rb8 a8R h2 f5+ Kh7 f6 Nf4+ Kf1 Rb4 f7 Bb2 g6+ Kh6 f8R Rhb5 g7 Qc5 Qe1 d1Q g8B Qdd6 Rf5 Qc4+ Qe2 Qg2+ Ke1 h1R Qd1 e2 Be3 Rh3 Bb6 Ba6 Re8 Bc8 Nbc1 Rg3 Qd5 Qh1 Qa8 Rh3 Bg4 Rc3 Re3 Qb7 Bf3 Qc2 Nb3 Qb8 Rg2 Q2e4 Rd3 Qeb7 Rd1 Qbc6 Rc1 N2d3+ Kd2 e1R Rf2 Ree5 Re2 Nf2+ Ke1 Q4d5 Re3 Qe4 Re2 Qec4
1N2rq1b/1QpRNn1P/r2B4/BKn3p1/3qR3/1kqBn3/q1nR4/qb5B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 d4 Ke7 Kd2 Kd6 h4 Kd5 a4 g5 h5 b5 a5 f5 e3 f3 a6 f2 h6 g3 a7 b3 Kc3 b4+ Kd2 f4 h7 f3 Bd3 f1Q Ra2 b2 Qb3 g2 Ne2 g1Q Rh4 f2 Re4 Bf5 Nbc3+ Kc6 d5+ Kc5 d6 b1Q d7 Nh6 Qb2 b3 Nd5 Nf7 Kc3 Bg7+ Nd4 Re8 Ne7 Na6 Bd2 Bh8 Be1 Qc8 d8B Qa1 Bd2 Qfb1 Be1 f1N Bd2 Ne5 Ndc6 Nf7+ Rd4 Bg6 e4 Ne3 e5 Kb5 e6 Nc5 Nb8 Bf5 Ra6 Qba2 Rd6 Ka4 Rd7 Bg6 Be2 Bb1 Bd3 Ne5 R4d5 Qd1 Kd4 c3 Be1 c2 Ba5 c1Q R5d6 Nc2+ Kc3 Nf7+ Kc4 Qcd2 Rd4 Nb4 Re4 Nd5 Rd4 Qe3 Qg2 Ka3 Kb5 b2 Qe4 Kb3 Qf3 Nb4 Qb7 Qdd2 Re4 Qd4 Re2 Q2c3 Rd2 Ka3 Nec6 Nd5 Be7 Ne3 Bd6 Kb3 e7 Rf8 e8R Qd8 Ree7 Re8 Re4 Qe7 Rh2 Qf8 Ne7 Bc2 Rd2 b1N Bb4 Na3+ Kc6 Nac4 Kb5 Bb1 Ba5 Nc2 Na6 Rad8 a8B N4e3 Nb8 Rc8 Qa7 Rcd8 Bc6 Rc8 Qb7 Rcd8 Rf4 Rc8 Bh1 Rcd8 Re4 Rc8 Na6 Ra8 Nb8 Ra6
K1B2qNk/1p2qb2/1n3b2/4b1Rq/N2R2r1/5Q1p/1NRr1B1P/1N1q1nqb w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Ke2 c5 d4 h5 g4 f5 a4 Kf7 a5 Kg7 d5 e5 a6 e3 Kd3 e4+ Kc4 f3 Kb5 f2 a7 c4 g5 f4 d6 c2 d7 f3 g6 h4 Qd4+ Nf6 Ra2 e2 Bf4 c1B Qd1 e1Q Qa4 c3 Nd2 c2 Bc7 h3 Kb6 e3 Qb5 e2 Qa4 Bb2 Qb5 c1Q Ne4 Ng4 Qc4 Be7 Nc3 Qg5 Qd3 Rh4 Nd1 Qf8 d8R Qh5 Bg3 Bef6 Rd4 Nd7+ Kc7 Ba1 Rc2 Kh8 Nb2 Ne3 Qa3 Rb8 a8N Rg4 Nb6 Qd1 N6a4 e1Q Bd3 f1Q Bf2 Nb6 Ne2 Be6 Bf5 Rd8 Nec3 Qg1 Nb1 Bf7 Bc8 Nf1 Kb8 Qee7 g7+ Kh7 g8N Kh8 Bh4 f2 Qf3 Rd6 Rd5 Rd8 Rg5 Rd2 Ka7 Ne3 Kb8 f1B Bf2 Bg2 Ka7 Qge1 Rg1 Bh1 Rd5 Nf1 Rd4 Re4 Rg5 Rg4 Nc4 Bc3 Ncb2 Q1e3 Re4 Bce5 Rd4 Nc4 Ka8 Qee1 Bg3 Qe3 Be1 Qg1 Bf2 Nb6+
Qr4nK/5q2/NB1bb1Bq/n5r1/1NR4R/1Rrp1brn/p3nP2/1R2B2k w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 c4 Nh6 g4 Kf6 b4 Ke5 g5 a5 b5 d5 g6 h3 g7 a3 g8R h2 c5 e3 Kf3 a4 b6 e2 c6 e1Q b7 Ra5 c7 Nc6 Kg3 Ke4 Kh4 e5+ Kh5 Bd6 Ne2 Kf3 b8B e4 Ra2 e3 Ng3+ e2 Rg1 h1N Ba7 Qc3 Rg6 Qb3 Qd2 e1N Bd3 Ng2 Rg5 Nf4+ Kh4 Qe7 Rf1 Kg2 Ne2+ Ng3 Bb2 Rf8 Ba1 Ng8 Qe3 h5 Nbc3 Re8 Re1 Qf8 Rc1 Bd7 Bg6 Rb8 c8R Kh2 Ng1 Nge2 Bf7 Qb7 Rg6 Be6 Kg5 h4 Rf1 h3 Rb2 Rc5 Qf3 Na5 Rf6 Qc7 Bg6 Qcf7 Ne4 Rc2 Qh5 Kg2 Rfb1 h2 Nh3 h1R Bb6 Rg1 Rc4 Kh1+ Qg4 Rcc1 Nc5 Rg2 Ng1 Nh3+ Kh5 Rc2 Nf3+ Rc1 Qe4 Rg5+ Kh4 Rcg1 Ne1+ R1g2 Rf3 R2g3 Rd2 a2 Bc3 a3 Na6 a1R Rbb2 a2 Nc2 Rgg1 Ncb4 Rae1 Rb1 Rc1 Rdd3 R1g3 Be1 Rc2 Rdb3 Rc3 Rf4+ Rg2 Qf5 R2g3 Rg4 d3 Rgd4 d2 Qf3+ Kh2 Rf4 d4 Qa8 d3 Rfe4 R5g4+ Kh5 Kh1 Qd5 d1B Qa8 Nc1 Red4+ Bf3 Rf4 Ne2 Rfe4 Qd8 Rf4 Ne7 Kh6 Rg5 Rfd4 Qde8 Rh4 Qff8+ Kh7 Ng8 Kh8 Qd7 Qe4 Qdf7 Qa8 Qh6+
n2N1Nb1/kN1q2qR/1qrbr1N1/5R2/bKB1nB2/P7/2ppn1RQ/4q1b1 w - - 0 1 illegal: No possible last move
1K1r2N1/N7/qn1Nnr2/B1r1k1b1/3q1NpR/1b1pB3/Pb1rBR2/1n2Q2n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 g5 h4 b5 c5+ Ke5 h5 d5 h6 f5 c6 f3 Kg3 f4+ Kf2 b3 h7 g3+ Ke1 b4 Kd2 f2 Kd3 g2 c7 f3 Qd2 b2 Ne2 g1B Rh5 b3 Bh3 f1N Nbc3 b1N Ng3 b2 Nce2 f2 Qb4 Be6 c8N Nf6 Ne7 Ne8 Qe1 Bh6 Be3 Rf8 h8B+ Ng7 Ngf5 g4 Bg2 Ng3 Ng8 f1Q Nd6+ Bg5 Rh4 Nh1 Nb5 Nd7 Na7 Nb6 Bh3 Qff6 Bf1 Qh6 Nf4 Rf6 Be2 Bf7 Rh5 Ne6 Rh4 Qd6 Bg7 Rd8 Bf8 Qd7 Bb4 Bh2 Ba5 Bg3 Kc2 d3+ Kb3 d4 Kb4 Qd6+ Kb5 d2 Ka6 d1R Kb7 d3 Bg1 Qd4 Be3 Rd7+ Kb8 Rd2 Qf2 Rc7 Qg1 Rc5 Qe1 Na3 Rc1 b1R Rc2 Rbb5 Rb2 Nb1 Rc2 Rd5 Rb2 Rbc5 Rc2 Kd6 e5+ Kd7 Rc1 Ng7 e6+ Kd6 e7 Nc8 Ka8 Rg6 Qg1 Qf6 Ng2 Be5 Bf3 Bb2 Nf4 Qd4 e8N+ Ke5 Be2 Rd8 Rf1 Bb3 Rf2 Ra6 Qe1 Qb6 Rf1 Qb5 Rf3 Rf6 Rf2 Qa6 Nd6 Ne6 Kb8 Nb6+
k1Nnnn1r/N2b1brB/1K3Q1n/2BNr3/5P1r/p2qb2N/2pRq3/RB6 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc6 d4 Kb7 b4 c5 f4 a5 g4 h5 g5 e5 b5 h3 d5 h2 g6 c3 b6 c2 g7 c4 d6 a3 d7 a4 Qd4 c3 Qd3 h4 Qd1 a2 Bd2 c1N Qf3 h3 Qd1 a3 Qh5 c2 Bc3 Bc5+ Bd4 Nc6 Qg5 Nh6 g8B Nb3 Bh7 Nba5 Nd2 Ra7 Qh5 Ka8 Ba6 Nc4+ Kf2 e3+ Kf3 e2 Ke4 e1R+ Kd5 e4 Qe5 e3 Qe7 e2 Nf1 Nd6 Bc4 Ne8 Qf6 Rb7 Rd1 a1N Ba2 Nb3 Bb1 Ra7 Bf2 Be3 Rd2 Nbd4 Kc5 Ne6+ Kb5 Rb7 Ka6 Rc7+ Kb5 Nf8 b7+ Ka7 b8N Ka8 Na6 Ra7 Nc5 Rc7 Na4 Ra7 Nf3 Rc7 Rg1 h1B Ng5 h2 Nh3 Bd5 Rh1 Bf7 Rg1 Bd4 Ne3 h1R Nd5 Ba7 Bc5 Bb6 Bd6 Be3 Bc5 Rh2 Kb6 Rh1 Nf2 Rh4 Rf1 Rc1 Nh3 e1Q Rh1 Qe2 Rg1 Re1 Rf1 Qe7 d8N Qe4 Rh1 Bd7 Rf1 Na5 Nc6 Nb7 Na7 Qd4 Nac3 Qdd3 Ne7 Nd8 Nec8 Bg4 Rg1 Re7 Nd5 Bd7 Rh1 Rg1 Ba2 Rgg4 Ra1 Rg7 Bb1 Re5
1n6/3N1Rq1/b1R2r2/1NBb1B1k/2nP1qrp/1Kbb1n2/pq1Nq1Q1/2N3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 h5 b4 c5 d4 a5 Kd2 f5 Kc2 Kf7 e4 Kg6 g5 a3 b5 c3 b6 c4 e5 a2 e6 h3 b7 h2 e7 h4 e8N a4 Be3 f3 Be2 a3 Bf2 f4 Ng7 Qe8 Nf5 Ne7 Qe1 Nec6 Ng3 Rg8 Ne4 Bb4 Nf6 Ne5 Be3 f2 Qd1 f1B Nd2 f3 Qc1 f2 Ndf3 Ra6 Nd7 Rf6 Nd2 Nf3 Bd3+ Kh5 g6 Qf7 Qb1 Qg7 Qb2 Ba5 Rb1 a1Q Ne2 a2 Rc1 Bb4 Rg1 h1B Bf5 Ba5 Rg4 Bb4 Rf4 Ba5 Re1 Bb4 Nc1 Bd3+ Kd1 f1N Bg1 Bg2 Re6 Bh1 Rc6 Ba5 Nb1 N1d2 Na3 Bg2 Qb5 Qb2 Qd5 Qb5 Qe4 Qe5 Nb5 Bb4 Nb3 c2+ Kc1 Ba5 Kb2 c3+ Ka3 Qe6 Nc1 Nc4+ Kb3 Bb4 Qd5 Qe2 Qe4 Na6 b8B Bb7 Be5 Nb8 Qd5 Bc8 Bd6 Ba6 Bc5 Bh1 Re4 Bg2 Re7 Ba5 Ka4 Bh1 Rf7 Bg2 Nb3 c1Q Qe4 Qcd2 Nc1 c2 Kb3 Bc3 Qg4+ Kh6 Qg3 Kh5 Qh3 Qf4 Qh1 Ne1 Qh3 Bd5 Qg2 Qf8 g7 Nf3 Nd6 Qfe7 Nb5 Q7e5 Ka4 Rh6 Kb3 Qe1 Ne2 c1Q Na3 Rg6 Nb5 Qa1 Nc1 Qf6 Rd6 Qe2 Rc6 Rh8 g8N Rg4 Nc7 Rh6 Nb5 Qg7 Ngf6+ Kg5 Ne4+ Kh5 Nd2 Rhg6 Nb1 Rf6 Nd2 Qb2+
2Q5/8/1kN5/qb1nq1Rq/qPBpR1N1/1rBnNp1B/rBb1K2b/3n2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 h4 f5 e4 d5 c4 Kd7 b4 Kc7 h5 a5 h6 g5 e5 d3 h7 a3 c5 a4 c6 a2 e6 a3 e7 d2+ Kf2 f3 e8N+ Kb6 c7 g3+ Ke3 g4 Bd3 f2 Ne2 f1B Qb3 d1N+ Kd2 g2 Rh4 g1B Qc2 g3 Nec3 g2 Nd6 Nf6 Ba6 Nbd7 Qb2 Nc5 Rh5 Nd3 Nb7 Bd6 Bc4 Bdh2 Ne4 f4 Qc3 Bf5 c8B Qd7 Rg5 Qa4 Na5 Rg8 Rh5 Rg3 h8B Ra6 Nf2 Be2 Bb2 d4 Rg5 Nd5 Bf6 Qe8 Ng4 Qe5 Qc2 Ra8 Nc3 Be4 Rc1 a1Q Nc6 a2 Rg8 Rf3 Bh4 Ra3 Bg3 Rf2 Rg6 Rb3 Rg5 N1e3 Nb8 Nc5 Bd3 Bh7 Bh4 Bg3 Re1 Be4 Bc1 Bg6 Ne4 Nd1 Nh2 Bh7 Nf6 Bg6 Be4 Bb5+ Re2 Bh7 Nf1 Bg6 Bd3 Be4 Rg7 Qh5 Rg5 B3h2 Ke1 Bg6 Ree5 Rd2 Be2 Be3 Bh3 g1Q Ng4 Qg2 Qf5 Qe4 Bc4 Beg1+ Nfe3 Bh7 Qc8 Qf5 Re4 Qe5 Kf1 Bf5 Be1 Re2 Bc3 Rc2 Ng2 Rcb2 Re3 Bc2 Nc6 Nd3 Na5 Qb1 Re1 a1Q Re4 Qba2 Nc6 Qa5 Ke2 Q1a4 Ne3 Ra2 B1b2 f3+
1b2q1nR/r2bq2B/3N1N2/b1k1r1qP/1N2q3/1n1Q2p1/RpK4n/NRB4b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Kd6 c4 g5 a4 b5 h4 f5 e5+ Kc5 a5 d5 h5 b3 a6 b4 e6 g3 e7 g2 e8R g4 a7 d3 Qe1 d4 Rh4 g3 Qe6 b2 Re7 b3 Qe3 f3 Ra6 f4 Rg7 f2 Qe6 f3 Rd7 Qe7 Ra1 Nc6 Re4 Na5 Na3 b1Q Re3 b2 Ra2 Nb3+ Kd1 d2 Nh3 g1B Qa6 Qbe4 Bd3 f1B Re1 f2 Rd8 Bd7 Nc2 Bg2 Ng5 f1N Nh7 Nh2 Na1 Bh1 Nf6 Rh7 Kc2 d1Q+ Kb1 Rb8 a8N Qd2 Nc7 Rb5 Ncd5 Qg5 Nb4 Rf7 Bc2 d3 Rf1 d2 Bd3 Bg4 Kc2 Bd7 Rb8 Qe8 Rd1 Q4e7 Bh7 Bd4 Re1 Be5 Ra8 Bb8 Qa3 Kd4 c5 Rg7 c6 Kc5 c7 d1Q+ Kc3 Qd4+ Kc2 Qdg4 c8N Qd4 Nd6 Qde4+ Kc3 Rf7 Qa6 Ra5 Qd3 Bh6 Kc2 Bg7 Nfd5 Bc3 Nf6 Rb5 Bd2 Rg7 Rb1 Ra5 Bc1 Ra7 Nc6 Ba5 Nb4 Rf7 Ng4 Rf5 Nf6 Re5 Ra4 Nh6 Na2 Q8f8 Nb4 Bbc7 Rd8 Bb8 Ra2 Qff7 Rg8 Qfe8 Rh8 Ng8
5n1B/1b1NrQKr/1bb2NRr/2N1q2p/3p1n2/1q2BRb1/1n1PBB2/3n3k w - - 0 1 illegal: No possible last move
2q1NN2/BR4Q1/1rR3Kn/1q2pP1n/4b1R1/b2p1n1B/b1b1k2r/2r1rR1B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 a5 b5 g5 h5 f5 e3+ Kd3 e2 c3 e1R g6 h3 g7 h2 a6 h4 a7 h3 Ra2 b3 Bb2 b4 Ne2 Nc6 Na3 Bb7 Bc1 b2 Nb1 b3 Na3 Nh6 g8R Rb8 a8B Qc8 Nc4 Ba3 Rg4 b1B+ Rc2 d6 Be3 b2 Nf4+ Kc5 Ke4 d5+ Kf3 Ba2 Bg1 b1Q Ng6 Qb5 Nf8 Rh7 Rf2 d3 Nd6 d2 c4 d4 Ne8 d3 Qc2 Kb4 c5+ Nd4+ Kg3 d1B Kh4 Bc6 Kh5 Be4 c6 Rb6 c7 Nf3 Qb1+ Kc4 Rb2 Bc2 Bc6 Rc1 Kg6 Kc3 Qa1 Kd2 Bd4 Rb7 Ba7 Rb6 Bg2 Rh8 Rf1 h1R Qb1 h2 Bh3 Ke2 Qa1 Qb8 c8R Re1 Rc7 Qc8 Qc1 Rg1 Qg5 h1N Qe7 Ng3 Qg7 Rh7 Rb3 Rh1 Rb7 Nh5 Rc3 Nf6 Bd5 Nh5+ Rc6 Rh2 Qf6 Re7 Qg7 Rc7 Kh7 Ba4 Rc4 Nd2 Bg8 Bc6 Bd5 Bd1 Bdg2 Nf3 Bh1 Ba4 Kg6 Be4+ Rc6 B4b3 Rf6 Rcc1 Rc6 Bc2
k7/n2n4/2rB3b/PRbRr2B/b1B2nQ1/4NqR1/1Rq1prp1/3nN1Kr w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 d5 Kf2 Kd7 h4 Kc6 a4 g5 c4 e5 c5 b5 a5 Kb7 h5 e3+ Kg2 e2 h6 e1R f5 g3 f6 b3 f7 e4 h7 b2 Nc3 b1R Nge2 d3 Ng1 g4 Qf3 d4 Rh3 d2 Nce2 d1Q Rh5 d3 Rh3 b4 Nf4 d2 Bd3 b3 Qf2 b2 Bb5 e3 Ra3 Ra6 c6+ Ka8 c7 Nf6 Qe2 Rc6 Qf1 Nd5 Ra2 Qf6 Nf3 Bh6 f8R Bd7 c8B Qc2 Rd8 d1N+ Qe2 Rf8 h8R Be8 Ng1 Nd7 Bc4 Ra1 Rh7 b1N Rb2 Nbc3 Nf3 Nb5 Rh5 Qf7 Rg7 Na7 Rg8 Rh1 Ne1 Rb1 Rhg5 Rh5 Kf1 g2+ Kg1 Qff5 Qf3 e2 Bd2 Rf7 Bb4 Qfe4 Qg3 Qf3 Bd6 Rc1 Re5 Rhf5 Rg5 Re7 Re3 Ree5 Reb3 Rb1 Rb5 Rf6 Nfd3 Ra1 Nb4 Nf4 Nd5 Nf8 Rh5 Nf2 Bd3 N4e6 Bc7 Rc3 Rh3 Qf5 Rb6 Ba4 Kh2 Rc6 Bc4 Nd3 R6b5 g1B+ Kh1 Rd1 Nf3 Bc5+ Qg1 g3 Ne3 Qg4 Rd5 Nf2+ Kg2 Rf1 Ne1 Nd1 Bd6 R6f2+ Kh1 Qf4 Bd7 Qg4 Be8 Nd7 Bh5 Nf4 Rb1 Rg2 R1b2 Rff2 Qf1 Rh2+ Kg1 Qf3 Qg2 Qg4 Qf3 g2 Qg3 Qf3 Qg4 Rg5 Rg3 Re5 Rb7 Rh3 R7b5 Rh1#
qb1n1q2/1BNn2B1/Q2NR1bP/K3r1r1/1r1b1p2/2B2bk1/1R1p1rn1/1R4B1 w - - 0 1 illegal: No proof kernel
2n3rN/K1N1n1R1/Q1Rn2Bp/1qB1bP2/r3N3/p2bR2r/Rqk5/3nb1r1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Kg6 f4 e5 c4 d5 b4 a5 c5 e3+ Kd3 e2 b5 e1B b6 e4+ Kc2 a3 Kb3 a2 Ka4 d3 Kb5 d2 g5 Kf5 c6 h6 c7 h3 g6 e3 g7 Ke4 b7 h2 Kb6 d4 f5 e2 Ba3 Kd3 Qc1 d1N Bh3 a4 Bc5 a3 Nd2 Bd6 Nb3 Ne3 Nd2 Qd7 Ngf3 Ne7 g8R Ra4 Bf1 Be5 Rg7 Rg8 Nh4 Qe8 Rhg1 h1R R1g3 Rh3 Ng6 Bd7 c8R Bb5 Qb2 Bc4 Qb5 Kc2 Rc7 d3 Ne4 d2 Qa6 d1N Rc6 Nd7+ Ka7 Nb6 b8N Bd3 Nh8 Nec4 Re3 Nd6 Bg2 Rf8 Bf3 Rg8 Bh5 Qd7+ Rc7 Qe8 Bg6 Qb5 Rb1 a1Q Rc6 Qab2 Ra1 Ba5 Ra2 e1R Qc8 Bac3+ Na6 Rg1 Qb7 Ba5 Nc7 Be1+ Qa6 Nbc8+
2q3bN/1Nr3B1/1n2rPn1/K1q4k/p2npnNb/8/q1B1Rb1R/qN2B2Q w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 c4 Kg6 f4 h5 g4 a5 b4 d5 b5 e5 c5 d3 Kc3 a3 c6 d4+ Kb3 a4+ Kc4 a2 b6 e3 Kb5 e2 b7 e1B g5 e4 c7 h3 Qf3 d2 Qe3 d1Q Ne2 d3 Ng1 h4 f5+ Kh5 g6 h2 g7 h3 f6 d2 Bd3 Bc5 Nf3 Ra7 Be2 Be6 c8N Ne7 g8N Ng6 Qd3 Nc6 b8B Qc2 Bb2 d1N Bc7 Bcf2 Ba3 Nb2 Nge7 Nc4 Qd1 Bg8 Nd6 Qc8 Bd3 Nb6 Nb7 Qe2 Ne5 Nd4+ Kc5 Ra6 Bc2 Rh7 Ng4 Bh4 Qc1 Bef2 Kb4 Rg7 Re1 h1N Bg3 h2 Qd1 Qe3 Re2 Rh7 Bc1 Rf7 Bd2 Rg7 Bd6 Ng3 Be1 h1Q Bf4 Qg2 Bh6 Rh7 Bg7 Qg5 Bd2 Qd5 Qh1 Qdc6 Be1 Qd5 Re3 Nge2 Rh3 Nef4 Rh2 Nh8 Ng6 Qdc6 N6e5 Nhg6 Nf7 Qd5 Nh8 Qg1 Bf8 Rc7 Bg7 Qg2 Nd2 Qc6 Rc1 a1Q Nb1 Qd5 Rd1 Qda2 Rd2 Qg1 Re2 Nd7 Ne3 Re6 Ka5 Nb6 Ng4 Nfd5 Bb4 Ndf4 Bc3 Qc1 Bd2 Qca3 Be1 Qc5+
b1n4q/n1bB2bK/2N1rp1B/R1q2B1r/7k/4P2p/qQR1nn1N/BN5b w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 c5 a4 h5 d4 b5 a5 f6 d5 b3 d6 h3 a6 b4 d7 h2 a7 b2 Qb3 h4 Bg2 h3 Ra6 c3 Be3 c2 Qa3 c1B Nc3 b1Q+ Kf3 b3 Ra4 b2 Bd2 c4 Ra5+ Kh4 g5 Nc6 g6 Nge7 g7 Qa2 Ke4 b1N g8N f3 Bh6 f2 Qb4 f1N Qb2 Bf4 e3 Bg7 Bf3 Rh7 Bg4 Bb7 Bf5 Nc8 Ne7 Qh8 d8B Bc7 Bd7 Rb8 Kf5 Nbd2 Kg6 Ba8 Nb1 c3 Bf5 c2 Nf3+ Kg3 Bd7 c1Q Bf5 Rb6 Bd7 Bf4 Bc7 Ne4 Be5 Qc5 Bc3 Bc7 Bf5 Nd4 Nc6 Nb5 Bd7 Nf2 Bf5 Nd2 Rc1 h1B Rc2 Nf1 Nh2 Kh4 Bd4 Ng3 Be5 Bb7 a8B Ne2 Bd4 Nba7 Bd7 Ba6 Bb7 Bb5 Ba6 Ba4 Bd3 Bb3 B3f5 Bbd5 Qb4 Bdg2 Ba1+ Be4 Qb2 Bd5 Bf4 Rh5 Bh6 Bde4 Nd8 Ba8 Nc6 Qd8 Kh7 Ra6 Nb4 Re6 Nc6 Qh8+
3q4/1q1RqN2/b2K1pk1/4Rp2/rNbB1RP1/nB1rq3/5Rr1/2Nnbb1Q w - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 f5 g5 f6 gxh4 Nh3 exf6 Ng1 f5 Kf2 b5 Kf3 d5 Kf4 h5 Ke5 b3 g4 f6+ Kf4 Kf7 a4 b2 e4 h3 c4 h4 c5 h2 c6 b4 e5 d3 c7 d4 a5 d2 e6+ Kg6 a6 b3 e7 h3 e8N d3 a7 Ne7 Na3 b1Q Be2 b2 Qc2 d1R Nd6 d2 Nb7 Nd5+ Kf3 Nc6 Nd6 Nd4+ Kf2 Qe8 Ra2 Ba6 c8R Nb5 Rc5 Ndc3 Qe4 Qd3 Nf7 b1Q Nc2 Na3 Re5 Qb7 Bb2 Bb4 Qc6 Qdd8 Bc4 Rh6 Bb3 Qbb6+ Kg3 Qe3+ Qf3 Bf1 Ne2 Rh5 Rg1 h1Q Nc1 h2 Ba1 Ba5 Nb4 Ba6 Rg2 Rg1 Rb2 d1B Rd2 Bde2 Rd7 Nd1 Bc3 Bec4 Bd4 Qe1+ Kf4 Rh3 Qf1 Rd3 Rf2 Qb7 Qh3 h1B Qh8 Rc8 a8R Bg2 Qh1 Rc5 Rc8 Bf1 Rc6 Rgg3 Rce6 Rd5 Re4 Rg2 R6e5 Rd2 Kf3 Re2 Rf4 Re4 Bb6 Rd2 Bd4 Rd3+ Be3 Qdb8 Nc6 Bb4 Rb5 Qbd8 Re5 Rd5 Ba7 Bcd3 Bb6 Bc3 Be3 Ra4 Nb4 Nb2 Bc5 Bde2+ Ke3 Bec4+ Re2 Rd1 Bb6 Bd2+ Kd4 Qg3 Kc5 Qe3+ Kd6 Be1+ Bd4 Rd3 Rd2 Nd1 Rdf2 Qee7+
3r1q1n/NR3br1/n1b1rp2/3PQ1R1/1RrB4/b2b2RN/2p3KB/nB1k2q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 a4 Kf5 d4 Ke4 e3 c5 h5 g5 a5 b5 d5 g3+ Kg2 b3 a6 f6 a7 c3 h6 c2 h7 b4 Ne2 f3+ Kg1 g2 Rh4+ g4 Ra3 c4 Ra5 f2+ Kh2 Kf3 e4 g1R e5 c3 e6 b2 e7 b3 e8R Be6 Ra4 Nh6 Re7 Nf7 Rb7 Na6 Na3 b1B Rd4 b2 Rb6 Rc8 a8R Rc4 Bf4 c1N Qe1 Bd3 Nb5 b1R Rh5 Nb3 Rg5 Ba3 Na7 Qf8 Rb7 Na1 Bd6 Rbb4 Nf4 Rb6 Qe5 c2 Nh3 Rg8 h8B Rg3 Bg7 Nh8 Bc7 Bf7 Bh6 Re6 Rab8 Rg7 Rb3 Rg8 R8b7 Rg2+ Kh1 g3 Rdg4 Rg7 R3b4 Rg8 Qb2 Ke3 Qe5+ Kd2 Bb6 Kd1 Bd4 Qd6 Bf8 Qb8 Bfc5 Rd8 Bb6 Qd6 Bc7 Qf8 Bd6 Bdg6 Bd3 f1B Bc7 Be8 Bd6 Bc6 Bc7 Rc5 Bc4 Bf7 Ba2 Bd3 Bb1 Rc4 Bd6 Rh2+ Kg1 g2 Kf2 g1Q+ Kf3 Re2 Rg3 Re4 Bc7 Qe1 Kg2 Rg4 Bg1 Qe3 Bb6 Qe1 Bbd4 Qe3 Bh2 Qe1 Rf5 Rg7 Rfg5 Qg1+
2R1r3/1r1b1rqN/4pqR1/1r1B2B1/2b1nbbK/3p2P1/QN6/1NnqBk1N w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Ke6 a4 Kd5 f5 b5 a5 h5 a6 d3 c4+ Kd4 c5 d5 f6 h3 Kg3 e3 f7 h2 c6 e6 c7 d2 a7 h4+ Kh3 e2 g3 Kd3 Ra4 b3 Kg4 h3 Rb4 b2 Bg2 e1Q Qa4 d1Q+ Nf3 Ke2 Qa6 d4 Nh4 d3 Rc4 b4 Qa1 b3 Be4 Bd7 c8N Nf6+ Kg5 Na6 Ne7 Qc3 Rf1 h1B Nhf5 h2 Be3 Bf3 Nd6 h1B Qa2 Bg4 Ng8 Rh7 Rc8 Nc5 Bd5 Bh6+ Kh4 Nfe4+ Bg5 Qg7 f8B Qdf6 Rf4 Rb8 a8N Bhf3 Be7 Kf1 Nb6 Ra8 Nbc4 Rb8 Nba3 b1R Nb2 Rb7 Bd8 Rb5 Ba5 Rh8 Ne7 Re8 Ng8 Rc1 Be1 Rc4 Na4 b2 Nb1 Nb3 Rf5 Nc1 Re5 Qff7 Nf6 Rc7 Nh7 Qfg6 Rf5 Ra7 Rf8 Q6f6 Rg8 Bh1 Na3 b1R Nb2 Qgf8 Rg6 Q8g7 Na4 R1b2 Nb1 Rf2 Nb2 Rab7 Na4 Qd4 Nb2 Rf7 Bf6 Bf4 Bg5 Nc3 Ne4 Qdf6 Nf2 Bg2 Bc6 Bd5 Nh1 Bc4 Bd5 Ne4
N1rqR1Bb/3r4/1R2p2q/B2rbqP1/1Kb4p/6B1/1n1NQR1B/2b2qnk w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Kd6 a4 Kd5 d4 b5 Kd2 h5 f5 c5 f6 b3 Kc3 e6 g5 h3 a5 b4+ Kb2 e3 a6 Ke4 d5 h2 a7 e2 f7 e1B d6 Nd7 Bd2 c3+ Kc1 c2 Kb2 c1R Bb5 c4 Bf4 Ne5 d7 Ba6 Qg4 Nh6 Nf3 Rh7 Nh4 Bd6 f8B Rd1 Ng6 Nf5 Bc6+ Rd5 Na3 c3+ Kb1 c2+ Kb2 Nf3 Nb5 Ne3 Ra5 Ng1 Nc7 Rc8 a8R Bc4 Ra2 h4 Ne5 c1B+ Kb1 b2 Nf3 Nd1 Kc2 Bc3 Bg3+ Bdf4 Bd6 Bh8 Nd2+ Ke3 Rb8 Bfe5 Na8 Rg7 Ra6 Rf7 Rab6 Rh7 Bf4+ Kf2 Bg3+ Kg2 Bc7 Bb5 Kb3 Bc4+ Ka4 b3 Kb4 b1Q Qh5 b2 Qe2+ Nf2 Ba4 Qg6 Bc2 Qh6 Bb1 Re7 Bh7 Rg7 Bg8 b1Q+ Nb3 Qf5 Nd2 Qe8 d8B Rgd7 Be7 Qd8 Bed6 Nf3 Rd1 h1Q Rf1 Qhh3 Bh2 Ng1 Bg3 Kh1 Bh2 Beg7 Bdg3 Nd1 Rf3 Be5 Rf2 Qdf6 Bd8 Nb2 Bc7 Rf8 Re8 Qf1 Rd6 Qe7 Ba5 Qd8 Rb6 Qdf6 Re7 Rc8 Re8 Qd8
2B3qk/4rR1q/1R1Pnr1q/RQN5/1bK5/pb1pNbR1/3r2n1/br2BN2 w - - 0 1 illegal: No proof kernel
q6q/1QB2r2/1P1K2Np/2Np2bN/b1BR2bB/N1bnr3/4R1q1/k1n1n2q w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 c4 Ke5 b4 d5 b5 a5 c5 h6 g5 e3+ Kd3 a3 g6 h3 c6 a4 c7 h2 b6 a2 g7 e2 f3 e1B Be2 a3 Bg5 Na6 Bd2 Ra7 Nh3 Nf6 g8N Ne4 Nf2 Nec5+ Kc2 d3+ Kc3 Nb4 Qc2 Nb3 Nd1 Bg4 Nf2 Qa8 c8N e6 Rg1 h1Q Ne4 Be7 Rg2 Bg5 Ngf6 Re8 Nh5 Rf7 Ne7 Qf1 Rf2 Qg2 Bf1 Nd4 Qc1 Ne2+ Kb3 Kd4 Bf4 d2 Bc7 e5 Ng6 Re6 Qc6 Qh8 Ka4 d1B+ Kb5 Bc2 Nc5 e4 Qb7 e3 Nc3 Bd2 Rd1 a1Q Nb1 a2 f4 Rf8 f5 Rf7 Na3 Kc3 Nc4 Qa8 Na3 Kb2 Na6 Be1 Kc5 Ba4 Rd3 Re5 Kd6 Qd1 Nc5 a1Q Ng7 Bd2 Nh5 Nc1 Be2 Ka2 Bf1 Re8 Be2 Qg7 Rd4 Bc3 Bc4+ Ka1 Rfd2 e2 Rc2 Qdh1 Rb2 e1N Re2 Bd8 f6 Rff8 f7 Qh8 Qa7 Nbd3 Qb7 Rg8 f8B Re3 Be7 Rg7 Bg5 Rf7 Bh4 Bg5
2Qr1RbB/3rK1n1/pq1NR3/1n3bk1/1RBq1N2/p2q4/1qPB3b/1n2n2B w - - 0 1 illegal: No possible last move, all moves rejected
nr4k1/1Nn1r1P1/p3q2b/1N2q3/1RKb2B1/2B2b1R/3q1BpR/1Qrb2Rr w - - 0 1 illegal: No proof kernel
b3rK2/4p1p1/bN1bRnq1/3Bbnk1/2Nr2N1/n6Q/NnP4q/1R2B1Br w - - 0 1 illegal: Other
1B1n3R/1BB1p1p1/1r2P2r/bb1q1rk1/3N2qN/1QB4n/qr4RR/bb4K1 w - - 0 1 illegal: Other
Q3R2r/2p1R1b1/BB3NK1/1q1b2r1/nk1n1NB1/1pq1Nn2/1P4br/Br4n1 w - - 0 1 illegal: Other
1b1rr3/k1p4Q/bN2n2R/n3PNqR/NqB1b2p/1b2rr1q/N2R4/B4K2 w - - 0 1 illegal: No possible last move
1qnr3K/2pR4/p1q2r2/1P2N1b1/N2n1R2/1n1b1rRR/4knB1/1NBb1rQ1 w - - 0 1 illegal: No possible last move
BnR3nR/1pbn3K/3Nr3/8/3b1B1k/1P1pQ1q1/RN1rqbqq/2B2bB1 w - - 0 1 illegal: No extended proof kernel
1n2rB2/p1r2n1q/q1rP3q/kB1bR1Rn/1b1r1n2/2N1p2N/KQBN4/N7 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kd7 Kd2 Kc6 Kc2 Kb5 b4 c5 Kb2 e5 f4 h5 g4 h3 d5 h2 g5 e3 f5 h4 f6 h3 f7 e2 g6 e1N g7 e4 Be3 a3+ Ka2 Ng2 Be2 Qb6 Qc1 Bb7 Qc2 Qh6 Qc1 Nf4 Qb2 Rh7 Bd1 c3 Nd2 c2 Ne2 c1R Rg1 h1N Rg5 c4 Bc5 h2 Bc2 e3 Nc3+ Ka6 b5+ Ka5 b6 Ng3 Rb1 h1Q Re5 Bd6 f8N Rd1 Ne6 Ngh5 Ng5 Bc6 b7 Be7 Bd4 Bb4 d6+ Bd5 Nh3 Qe4 Rg5 Qe7 Bf6 Qc7 Be7 Qd7 Nde4 Rd4 Bf8 Qf7 Nd2 Qf5 Ka1 a2 Rbg1 Qd7 Re5 Qf7 Nd1 c3 Rgg5 Ne7 g8B Neg6 Bb3 c2 Nc3 Qf5 Be6 Qf7 Bd7 Nh8 Bb5 Qg8 B3a4 Rc7 Bb3 Nf7 B3a4 Nd7 b8N Qgh7 Na6 Re8 Nc5 Nb8 Ncb3+ Kb6 Qb1 c1R Kb2 Rc6 Na1 Ka5 Bc2 Rdc4 Nf1 Rd1 Kb3 Rdd4 Qb2 Rc7 Nd2 R4c6+ Bc4 Nd8 Nde4 Kb6 Nd2 Bh1 Bb5 Nf7 Be4 Bf3 Nc2 a1Q Bf5 Qa5 Na1 Qa6 Bc2 Ka5 Ka2 Bd5+
1rr2r2/BNr2n1K/3B1n2/rk1p2rP/n3N3/qp3BR1/1b2NQ2/BR3b1n w - - 0 1 illegal: No proof kernel
4R1bB/K1r2Rp1/2r2R1p/4B1bQ/2bN2B1/2qn1N1r/k2Prbbn/2b4R w - - 0 1 illegal: No proof kernel
Rb1R4/pQ1P4/nr1n1N2/6b1/1Bn1q2B/Rp3k2/Bn1nRNn1/r1b2bK1 w - - 0 1 illegal: No proof kernel
1N4kn/1nPK4/r3R1nR/p1nN1q2/1nB3n1/1NQn3p/1BbR4/R2n2br w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 Kd3 Kf7 Kc4 a5 Kb5 d5 b4 h5 e4 a3 c4 a2 g4 f3 g5 d3 e5 d2 c5 f2 c6 f4 c7 h3 Ba3 h4 Bd3 f1N Bc1 h2 Qe2 d1N Bh7 f3 Qc4 f2 Na3 Nd2 Nb1 f1N Nh3 Nb2 Qc6 d4 Nc3 d3 Qf3+ Qf6 Na4 Ne7 Ng1 Nb3 Nc3 d2 Nd5 d1N Nh3 Nd7 Bf5 Nbc5 e6+ Kg8 g6 Nbd3 g7 Ng3 Bb2 Nge4 Ng5 Ng6 Kc6 Nd6 b5 Ncb7 b6 Nf7 Ne4 Nd7c5 Nd2 Ra6 Nb3 Rh7 Be4 Qf5 e7 Nfh8 e8R Rh5 Re6 Be7 Re1 h1N Re2 Nhf2 Rd2 Ng4 Qg3 Rh7 Qe5 Bg5 Qc3 Be3 Bf3 Bg1 Be2 Ndf4 Bc4 Nfd3 Rc1 a1N Rb1 Kf7 g8R Nc2 Ra1 Rh5 Rd8 Rh6 Rd7+ Kg8 Rdd6 Ncb4+ Kb5 Nd8 b7 Rh7 b8N Bb7 Nf4 Be4 Nd5 Ndb7 Rc6 Nc1 Rb6 Bc2 Rbd6 N1d3 Rc6 N6e5 Rh6 Neg6 Re6 Ra7 Kb6 Ra8 Kb5 Ra6 Rh5 Bh2 Re4 Re7 Rh6 h3 Ree2 Re3 Re1 Rg3 Re4 Rg1 Re6 Ra7 Kb6 Rh1 Kb5 Bg1 Kb6 Na2 Kc6 Ra6+ Nb6 Ne4 Kd7 Nab4 Nd5 Nec5+
rr1qN3/1QB1N1Rp/B4p2/Kb1b1rn1/4Nn2/1R3n2/P2nk2B/B1r3bb w - - 0 1 illegal: No proof kernel
2b1B3/KBrp3p/n5b1/2R5/R1QPB1r1/rNnq2Bk/1nnNbbr1/4N3 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 Ke7 g4 Kf6 e4 Kg5 a4 f5 d3 b5 a5 c5 e5 h3 a6 Kh4 a7 c4 g5 f3 Ke3 c2 Kd4 f2 e6 f4 g6 c3 e7 b4 Kc5 f3 g7 h2 Bf4 c1R Nd2 b3 Qe1 c2 Nh3 b2 Ne4 b1B Ra4 Qb6+ Kc4 Qd6 Kb5 Na6 e8B Nf6 g8B Nd5 Qe2 Nc3+ Ka5 Qa3 Ba2 Rg8 Kb6 Rg4 Bg2 f1B Ng1 f2 Nd2 Bg7 Qe4 Be2 Bd5 f1N Qc4 Ne3 Nb3 Bf8 Bge4 Bc5+ Ka5 Bd4 Nf3+ Kh3 Bg3 Bc5 Rf1 h1R Ne1 Rg1 Bb7 Rg2 Rf4 Nf1 Rf7 Bf2 Rf5 Ne3 Kb6 Qd6+ Bec6 Qg6 Rc5 Qe4 d4 Qd3 Rca5 Rd1 Rd5 c1N Rc5 Nc2 Bd5 Qd2 Be4 Nd3 Bh4 Rc1 Bg3 Rb8 a8N Nb2 Ka7 Qd3 Bbc6 Rb6 Bb7 Rb5 Nb6 Ra5 Rb4 Ra3 Ra4 Qf3 Qg8 Qe3 Nc4 Qd3 Ncd2 Ba2 Na5 Bf7 Nab3 Bg6 Qc4 Na2 Rd5 Ncb4 Qb5 Rc7 Rc5 Nc3 Qc4 Nc2
n1nr1qBB/5Nn1/1N3pK1/2N2qR1/p2b1q1k/1r1b1Pp1/RNQb3r/2R5 w - - 0 1 illegal: No possible last move, all moves rejected
K1BB1Nb1/4Bq1N/bpn4Q/1k4b1/1P1rR1pn/RN1pq3/3B1qnr/3r4 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 g5 cxd4 g6 a4 Qd3 hxg6 Qh3 g5 Qg3 g4 Qb3 axb3 Kd2 e5 c4 d5 a4 Kd7 h4 Kc6 f4 g5 h5 b2 h6 e3+ Kd3 e2 c5 e1R h7 g3 a5 g4 a6 g2 f5 b6 f6 Qe8 f7 Nf6 a7 Be7 f8B Qf7 Bd2 Ne4 Ra3 Ng3 Nf3 g1Q Ng5 Kb5 c6 Nf5 c7 Ba6 c8Q Nc6 Qe6 Rd1 Qh6 Rd8 a8N Qf2 Rh5 Bf6 Be7 Nh4 Bg2 Rd6 Be4 Rdd8 Bf5 Rd6 Bc8 e4+ Kc2 e3 Kb3 e2 Bd8 Rf8 h8B e1N Nh7 d3 Re5 Bg5 Bhf6 Rh8 Bfe7 Neg2 Re4 Rd7 Be3 Rd6 Nd2 b1Q+ Kc3 Qa2 Nb3 Qae2 Bf4 d2 Be3 Na5 Kd4 Qef3 Ke5 d4 Bf4 d3 Nc7+ Kc6 Ne6 Q3e3 Nef8 Kb5 Qh5 Rd4 Qh6 Rc4 Kd6 Rd4+ Kc7 Nc6 Qg7 Rc1 Qg6 d1B Qh6 Bf3 Nd2 Rd1 Nb3 Qee2 Bd2 Qee3 Re6 Bd5 Re4 Ne5 Kb8 Nc6+ Ka8 Qg7 Nf6 Bg8 Qh5 Rh6 N6h7 Qgf7 Qg6 Nf3 Qf6 Rh2 Qh6 Nfh4
rk3n1b/R3QRB1/Bpb5/nPq2p1b/2N1Nqr1/1q4pK/3r4/NNnB4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 b5 cxd4 Qd2 e5 Qc3 exf4 Qb4 axb4 Kf2 d5 Kg2 Kd7 e4 Kc7 c4 f5 a4 g5 h4 b3 e5 f3+ Kh2 b2 a5 f2 c5 d3 a6 g3+ Kg2 d4 e6 b6 e7 d2 e8Q d1R c6 g4 a7 d3 h5 d2 h6 Bd7 h7 Nf6 Ne2 Bg7 Nd4 Qe7 Be2 Rg8 h8N Nh7 Nf7 Nf8 Nc2 Qc5 Ne5 Bh8 Qe7 Kc8 c7 Nc6 Rg1 Na5 Nc4 Bc6+ Bf3 Rg6 Rh1 Rg8 Rh7 Kb7 Rf7 Rg7 Nc3 b1Q Bb2 Qa2 Nb1 Qb3 Ra4 Rg8 Bg7 Kc8 Qe1 Kb7 Na1 Kc8 Kh1 g2+ Kh2 g1N Qe7 g3+ Kg2 Ne2 Kh3 Nc1 Bh5 Rg1 Bd1 Rg2 Ra3 f1Q Ra2 Kb7 c8N+ Bd7 Ra4 Qf4 N8d6+ Kc7 Ne4 Kc8 Bc3 Rg4 Bg7 Bc6 Ra3 Rb8 a8B Rf2 Bc2 d1B Ra2 Bf3 Bd1 Rd2 Ra3 Rb7 Ra4 Ra7 Bb7+ Kb8 Ra2 Ra8 Bc8 Nb7 Ra7 Na5 Ba6 Rg6 Ned6 Bh5 Ne4 Rg4
1B3K1R/R5r1/pp1P4/1B1R2n1/2q1qN2/b2pk2B/N1rb2bB/n1Qnrq2 w - - 0 1 illegal: No proof kernel
5K1b/1bkP1pBR/2NR3B/3bq1r1/2b1p3/Qr1bRp1B/1r3nR1/3N1n1n w - - 0 1 illegal: No proof kernel
n2K1R1n/b1p2n2/2bN2bq/1BnnN3/p1P1r1R1/rr5B/1k2pR2/N4QR1 w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 f4 b5 b3 bxa4 Bb2 h6 Bf6 gxf4 g5 Na6 g6 Nb8 Bg5 hxg5 Ke2 Kd7 h4 Kd6 d4 Kd5 b4 Kc4 c3 f5 b5 a5 h5 e5 h6 g4 h7 a3 b6 a2 d5 e3 g7 g3 Kf3+ e2 b7 g2 d6 e4+ Kf2 e3+ Kf3 Qh4 d7 Nh6 d8R Nd7 g8B+ Nf7 b8R Nb6 Qe1 Kb3 c4 Bd7 Rdc8 Kb2 Rh3 Qh6 Rh2 Bc5 Qd1 e1R Rh5 Bc6+ Qd5 a4 Rb7 Rb8 Na3 Re2 Ra7 Na8 Rf8 Rb3 Rb7 Ba7 Rh4 Re1 Rd1 a1N Nc2 Re2 Rbb8 Re1 Rbe8 Ra3 Rd2 Nb3 Rg4 Nc5 Rf2 Rb3 Re4 Ra1 Qd1 Raa3 Bd3 e2 Na1 Be8 Qf1 Bc6 Nh3 Be8 Ng5 g1N+ Kg2 f3+ Kg3 Bc6 Kf4 Be8 Re7 Bc6 Be4 Nh3+ Kg3 Be8 Re6 Bc6 Rg6 Be8 Bd5 Bc6 Ne4 Nhg5 Kf4 Be8 Rfg2 f2 Nd6 Bc6 Be6 Be4 Bd7 Bb1 Qg1 f1B Rf2 Bg2 Bb5 Bc6 Qf1 Bd3 Ke3 f4+ Kd4 f3 Rg1 Nd8 Ke5 Ndf7+ Kf6 Bde4 Ke7 Bf5 Rfg2 f2 Rg4 Bc2 Rf6 Bg6 Rf3 Ne5 Be6 Nef7 Bf5 Rg8 Bd7 Nh8 Kd8 Rg7 Qg2 f1N Rf2 Ne3 Qf1 Re7 Be6 Nd5 Bd7 Bf7 Bc8 Ng6 h8N Re4 Be6 Bfe8 Nhf7 Nh8 Ne5 Bf7 R4g2 Bh5 Bh3 Bg6 Rg4 Ngf7+
2q2r1B/Pnrbr1RK/Nn2R1N1/6pB/bn3pQ1/5p1B/N6k/b4nnN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 h4 b5 c4 g5 c5 f5 h5 d5 c6 d3 h6 d4 h7 d2 c7 d3 a5 f3 Ke3 g3 a6 b3 a7 b4 Ba3 g2 Rh4 b2 Be2 b3 Rf4 Nd7 Nh3 g1N Bb4 Nc5 Nf2 Bg7 Nh1 Nb7 Ra6 Ne7 Bf1 Re8 h8N Bd7 c8B Nc6 Bh3 Re7 Nc3 b1N Na2 b2 Qa4 d1B Be1 Na3 Bc3+ Nd4 Bg4 b1N Bh5 d2 Rg6 Bf6 Rg7 Nc4+ Kd3 Nb6 Ng6+ Ke6 e5 Nc6 Ke3 Nb4 Re4 Bc2 Ba1 d1R Bd4 Kd5 e6 Rc1 Bc3 Nd2 Bb2 Rf7 e7 Qc7 e8N Re7 Re6 Nf1+ Kf2 Qc3 Nc7+ Kd4 Na6 Bd1 Qa3 B1a4 Qb3 Kd3 Qc4+ Kd2 Qg4 Qc6 Ba3 Ba1 Bb2 Qc7 Bf6 Qd8 Bb2 Rc7 Bd4 Ne3 Kg3 Ke1 Rf7 Kf1 Bh8 Nec4 Rg7 Nd2 Qh4 f4+ Kg4 Kg2 Kf5 Nf1 Qg4+ Kh2 Nf8 Bdc6 Kg6 Bcb5 Kh7 Be8 Bd7 Qc8 Ng6 Rb8 Bc6 Bd7 Bb5 Ng3 Bf1 Ra8 Bg2 Nf1 Bh3 Qg8+ Kh6 Rf8 Rd6 Rff7 Re6 Qc8 Kh7 Rf8
6q1/1R2rnr1/r1q4B/2r1nbrB/2p1k1bB/P5RN/N2pNQpK/3Bb3 w - - 0 1 illegal: No proof kernel
5K2/N2nN3/Rbn4k/rRnrBQp1/1nb1q3/p6b/P2BnNpR/5q1N w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Rb1 f3 Bg2 fxg2 Ra1 hxg6 Nb1 g5 Qb3 g4 Qc2 Nf6 Qd1 Ng8 Kd2 Kf7 h4 Kg6 b4 a5 e4 d5 f4 c5 b5 c3+ Kd3 g3 h5+ Kh6 e5 g5 e6 c2 e7 a4 e8R a3 f5 Qd6 b6 Nf6 b7 Qe7 Nd2 Ra5 Qf1 Nfd7 f6 Nc6 Nh3 g1N b8N g2 f7 Ne2 Rb1 Rh7 Ne4 c4+ Kd2 d3 Ke3 c3 Qf5 d2 Rb5 d1B Bd2 c1N Nf2 c2 Rh2 Qb4 Nh1 Nb3 Nef2 d4+ Ke4 c1N Kd5 d3 Ke6 Bc5 f8N Bb6 Ng6 Nbc5+ Kd6 Ba6 Re6 Qe4 Rf6 Rg7 Ne7+ Rg6 Re6 Bc8 Rf6 Bb3 Re6 Bc4 Rf6 Nb4 Nbc6 N1b3 Na7 Nbd4 Re6 Kh7 h6 Ndc6 Be3 d2 Bf4 d1Q+ Bd2 Kh8 h7 Kg7 Rf6 Qf1 Re6 Qh4 h8B+ Kh6 Be5 Rf6 Ng6 Rf8 Rf6 Rd8 Re6 Ncd4 Ke7 Ndc6+ Kf7 Nf8 Kg8 Rd5 Rd6 Nfd7 Ne7+ Nf6+ Kf8 Be6 Qd3 Bh3 Qf5 Qe4 Rd7 Bd8 Rdb7 Bc7 R7b6 Bd8 Ra6 Nfd7+ Kf7 Bb6 Kg8 Ndb8 Kf8 Nbd7+
b2q4/qn4kn/2RbrR2/2r2qpn/1pN2n2/2PQ1RBN/B3p2R/3K2nB w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 b5 f4 d5 a5 g5 h5 e5 a6 b3 h6 e3 c3 b2 a7 b4 h7 e2 f5 e4 f6 d3 Rh5 g3 Bf4 d4 Bg2 Bb7 Qc1 Nd7 Qc2 Rc8 a8B Bd6 Nh3 Rc5 Ng1 Nf8 Bh3 g2 Bd7 d2+ Kf2 e1N Ke2 d1N Bg4 d3+ Kd2 Nf2 Bh2 Nh3 Kd1 e3 Qd2 Nf4 Qe2 d2 Rh3 Ned3 Rf3 Be4 Nh3 g1N Bf5 Qd7 Ra3 Qa7 Be6+ Kg6 f7 Kg7 Bb7 Nf6 Ra6 N6h5 Ba2 Rg8 h8R Nh7 Bc6 Re8 f8R Re6 Bg3 Bd5 Rf6 Be4 Ba4 Ba8 Rb6 Ra5 B4b3 Nc5 Qd3 Nb7 Na3 Rc5 Nc4 Re7 Qc2 Re6 Rc6 b1Q+ Qc1 Qf5 Qb1 Be5 Bc2 Bb8 Be4 Bd6 Qd3 Nd5 Rf2 Ndf4 Bh1 Na5 Kc2 Nb7 Rf3 d1Q+ Kb2 Qda4 Kc1 Q4a5 Kd1 Qd8 Be1 Nf8 Nf2 Ng3 Rh2 Ngh5 Nh3 Nh7 Bg3 e2+
2Nr1B1R/nNq2bB1/1K2krbb/2p2n1B/R1qp2PB/3Rq3/3qp3/4Q1q1 w - - 0 1 illegal: No proof kernel
b3k3/4b1Bb/3Rq3/p3NQp1/3r1r2/1br1nP2/pnR2RqN/KN1BR1b1 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 e5 h4 g5 b4 d5 c4 a5 Kc2 g3 Kb2 e3 f3 a3+ Ka2 e2 h5 e1R c5 g2 c6 d3 c7 d4 b5 d2 h6 e4 b6 e3 h7 e2 b7 d3 Rh6 Be7 Rf6 Nh6 Nc3 Rf8 h8N Nd7 b8R Ng4 Rb7 Nde5 Nh3 g1B Na4 Ne3 Rb2 Bb7 c8R N5c4 Qc2 d1B Nc3 d2 Rd6 Rf4 Qf5 Bc2 Ng6 Rd1 Nb1 e1Q Nf2 Qe2 Rc7 Qc8 Ne5 Qe6 Nfg4 Qg2 Be2 Rc8 Nh2 Ba8 Rc5 Bce4 Rc2 Bd3 Bb2 Rc6 Bc3 Nb2+ Rcd5 Rcc4 Rc5 Rc1 Rcc6 d1B Rd2 Ba4 Bd1 Rc2 Rf2 Rd2 Bd4 Rc3+ Rc4 Rb3 Rc2 Rc3+ Nc4 Bde4 Bg7 Rd5 Ne5 Bd3 Nd2 Be4 Rb1 Bb3+ Ka1 a2 Rbc1 Rd4 Nb1 Nbc4 Be2 Bd3 Re1 Nb2 Bd1 Bde4 Qf6 Bg6 Qf5 Bh7
1Q1KR3/N1RR1nbB/2rnb1P1/1R6/1B2BN1r/2qq1bp1/1p2pk2/n5nn w - - 0 1 illegal: No proof kernel
3R2B1/B2q1n2/2PppQK1/Nbb1N3/kn1N2qq/rb3qRB/4p3/2r1q1N1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 b5 f4 h5 g4 h3 a4 b3 c4 h2 g5 h4 g6 b2 c5 e3 Kd3 b4 Ke4 d3 Kf5 b3 a5 e6+ Ke4 d2 a6 h3 a7 e2 f5 Nh6 g7 Nf7 g8B Na6 f6 Nb4 Ra2 Ba6 Na3 b1Q+ Kf4 b2 Nc4 Bb5 Na5 Qg6 Ra3 b1Q Rg3 Qbd3 Qc2 d1B Qb2 Bb3 Be3 Qd1 Bg2 Qe1 c6 Bc5 Qe5 d6 Bd4 Qe7 Qf5 O-O-O a8N Qd7 Nc7 Kb8 Qg5 Ka7 Bf1 Kb6 Qh4 Ng5 f7 Ra8 f8N Nf7 Qf6 Qh5 Ng6 Qg4+ Ke3 Ra7 Ne5 Rh5 Nb7 Ra3 Na5 Qg6 Kf3 Rh4 Bf2 Rc4 Be3 Rc1 Kf4 Ng5 Kg4 Nf7+ Kh4 Qe4+ Kh5 Qd4 Kg6 Qc4 Nd5+ Ka6 Ne7 Qg4+ Bg5 Kb6 Nf5 Ka6 Nd4 Kb6 Ngf3 Ka6 Rhg1 h1Q Bg2 h2 Bh3 Qg2 Rf1 h1Q Ng1 Qh4 Be3 Kb6 Rf5 Qf3 Rh5 Qhg2 Rh8 B5c4 Nc2 Kb5 Nd4+ Ka4 Bh7 Nh6 Rd8 Bb5 Bg8 Nf7 Rg5 Raa1 Nf5 Bb6 Bc5 Ra3 Nd4 Bc7 Ba7 Bb6 Rg4 Bc5 Rg5 Qgg3 Rg4 Qgf4 Rg3 Qf4g4+
BbNR4/Bq2Rbrp/4Rb2/bB2QN1p/B2nb1qp/1r5k/3P4/r3n2K w - - 0 1 illegal: No proof kernel
4Q2B/RN1b1bKp/Nnp5/R3Nb2/5r2/pNbbn2k/1rPB2q1/1r1q2R1 w - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 a4 bxa4 e5 g5 Bc4 gxh4 Bd5 f5 Be4 fxe4 Ke2 Ke7 f4 Ke6 g4 d5 b4 a5 b5 e3 Kd3 c6 g5 Kf5 b6 e2 b7 Kg4 e6 h3 g6 h2 f5 a3 f6 a4 g7 a2 e7 a3 e8R Nh6 g8N Bb4 f7 Qg5 f8N Ra4 Bd2 Nf5 Be3 Bc3 Re6 Nd7 b8B Nb6 Be5 Bd7 Bd2 Ne3 Nf3 e1Q Qe2 Kh3 Ne7 Qd1 Nc8 Qg2 Re7 Rg8 Rg1 h1B Bh8 Rg4 Qe1 Rf4 Ne5 Rb4 Ne6 Rb2 Nc5 Qdg4 Bc1 Qd1+ Nd2 Bf5+ Ne4 Bd7 Rb1 a1R Qe2 Rb3 Rb2 Rb1 Ncd6 Bf5 Ra7 Rb4 Ra2 R4b2 Nb7 Qg7 Qh5+ Rh4 Na5 Qdg4 Nef3 Rb4 Ke2 d3+ Kf2 d4 Nc5 Bd7 Ne5 Bd5 Qe8 Bf7 Nab7 Q7g6 Nf1 d2 Rb2 d1B Na6 d3 Nd2 Be2 Rb3 Bf1 Rb2 Qd4 Kf3 Rb5 Rb4 Qg5 Ra4 R5b2 Nb3 d2 Ra5 Qd6 Rg4 d1B+ Ke4 Qg8 Kf4 Bde2 Ke4 Qd1 Bd2 Bec4 Kf4 Bce6 Ke4 Bd3+ Kf4 Bdg6 Kg5 Bd3+ Kf6 Bef5 Rg2 Qgg4 Rg1 Qe4 Kg7 Rf4 Nb4 Qh1 Na6 Qg2+
BN5r/5Kp1/qQn3Rr/b1NRn3/2rPprNB/5q2/1rp1B1b1/b5kB w - - 0 1 illegal: No possible last move
RrnR4/1bKnr1p1/p2R2Rb/1q1P4/4NN2/1n1bn3/1npQ2B1/k3B1qB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 d4 Kd6 b4 Kd5 h4 c5 h5 f5 h6 a6 b5 g3+ Kf3 g2 e3 a3 h7 a2 b6 c3 b7 c4 Ne2 g1Q Ng3 c2 Qe2 c3 Qd2 Ne7 Qe1 Nd7 b8R Qb6 Qf2 Bb7 Rh6 Ra7 Bd2 c1N Bg2 Kc4+ e4 Kb3 Rd8 Kb2 Rd6 c2 Nh5 Nd3 Nc3 Qb5 Be1 Nc8 Qd2 Be7 d5 Re8 h8R Bg5 e5 Bh6 e6 Rf8 Rc1 a1N e7 Nb3 Ne4 Ka2 e8B Nb2 Bg6 Re8 Nc5 Ra8 Ne4 Re7 Rhf8 Rb8 Bh7 Nc4 Ra1+ Kb2 Ra3 Kb1 Ra4 Nb2 Rc4 Ka1 Rcc6 Qh1 Rg6 Qg1 Rcd6 Qh2 Kf2 f3 Nf4 Qg1+ Kg3 f2 Kf3 f1B Bh1 Qg4+ Ke3 Bd3 Rg8 Nbc5 Kd4 Qg1+ Nf2 Nd1 Rde8 Ka2 Nh5 f4 Rgf6 f3 Be4 Ncb6 Nf4 Nb2 Rg6 Ka1 Rgf8 Rc8 Rg8 Rc7 Ra8 Rc8 Rd8 Rb8 Bf5 Be2 Bh3 Bd3 Bf1 Nc8 Bfg2 Qh2 Ne4 f2 Bh3 f1N B3g2 Nf6 Re6 Nb3+ Ke5 Rc7 Rc6 Qg1 Ke6 Ne3 Ke5 Na7 Kd6 Re7 Rb6 Nd7 Kc7 Nc8 Rbf6 Qb4 Rd6 Qb5
k3r2B/4p2R/Kn1b1Nb1/2Nrp1Rp/r2Qbr2/1BNR4/1P1nR1q1/q6r w - - 0 1 illegal: No possible last move, all moves rejected
N4R2/BP6/nb3RNQ/b1k3p1/q3pbrr/2q2K2/R2qp3/1bbBBn1R w - - 0 1 illegal: No possible last move
2B1R1nN/1p1N2R1/qp1R1r1n/3Q1N2/n1b1b1Kn/BPbnR3/2p5/1qrk4 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 d5 h5 dxc4 h6 gxh6 Qc2 h5 Qg6 h4 Qb6 axb6 Kf2 Kd7 Kf3 Kc6 d4 Kd5 g4 f5 a4 c5 g5 h5 a5 h3 b3 c3 e3 h4 a6 c4 a7 h2 g6 c2 g7 c3 Nd2 h3 Bd3 Nc6 Ne4 Ne5+ Ke2 f3+ Kf2 f4 Ra4 Rh6 Rb4 Bf5 Nd2 Be4 Nc4 Nf7 Nd2 Rf6 Nc4 Rc8 Ba3 c1N a8R Ne2 Nd6 Rc7 Raa4 Qa8 Nf5 Qa6 Bb5 Bd6 Bd7 Be5 Rc4 Rc8 Rc6 Rc7 Re6 Rc4 Bc8 Rc6 Kf1 f2 Nf3 Rc7 Rg1 h1N Rc6 h2 Kg2 f1N Kh3 Nd2 N3h4 f3 Ng6 f2 Kg4 f1B Nh8 Nf3 Re6 Bc2 Rd6+ Ke4 d5+ Kd3 e4 Kd2 Rg2 Bd4 e5 Be4 e6 Nh4 e7 Kd1 e8R Be5 Rg3 Rc4 Re3 Nf2+ Kh5 Nd3 Kg4 h1Q Ra5 c2 Rc5 Bb2 Rc7 Nc3 Rce7 Na4 Red7 Ne7 g8N Bc3 Rc7 Rd4 Rcd7 Rh6 Nf6 Ng8 Rde7 Nc1 Nd7 Bc4 Nc5 Rf6 Nd7 Nd8 Rg7 Nf7 Rde6 Nd3 d6 Qa8 Nc5 Qa7 d7 Qa6 d8Q Rd5 Nd7 Qe1 Nd4 Rdf5 Rd6 Rf1 Nf5 Kd2 Qc7 Qb1 Qc6 Rc1 Qb5 Kd1 Qd5 Nfh6+
5b2/RpN3Qp/bNRBPKn1/1bbB4/qpNnR2b/2kr1q2/rR1r4/8 w - - 0 1 illegal: No possible last move
4Brq1/p4bp1/1qK2Nk1/Bp1Nb3/PBn5/3rR3/nN3Q1n/2nqn1BR w - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b4 cxb4 c5 h5 c6 hxg4 Na3 dxc6 Nb1 c5 Ba3 c4 Bb2 Qd5 Bc1 Qd8 Ke2 Kf7 Ke3 e5 a4 b3 f4 b6 h4 b2 d4 c3 d5 c2 d6 g3 h5 g2 f5 Nd7 f6 Rh6 Nc3 b1N Qe1 Rh8 h6 Kg6 f7 Ngf6 Nd5 Nc3 h7 Na2 Nf3 g1Q+ Qf2 b5 Be2 Qe8 Nd2 Nb6 d7 Bd6 d8B Qg8 f8B Be6 Nc4 Bf7 Nb2 Bc7 Bd2 c1N Bfb4 Rb8 Bde7 Rf8 Bec5 Bb8 Ba5 Rd8 Bdb4 Ng4+ Kd2 Nh2 Ke3 Qd1 Nf6 Qd6 Bg4 Qc6 Bd7 Qb7 Kd2 e3+ Kc2 e2 Be8 e1Q Bd4 Nb3 Kd3 Nc4 Rc1 Qb6 Rc3 Qg1 Ke4 Nbc1 Re3 Qd1 Bdc5 Rd6 Bd4 Re6 Kd5 e4 Bc5 Be5 Bcb4 Qd8+ Kc5 Re7 Kc6 Rd7 Ra3 e3 Bdb6 e2 Re3 e1N B6c5 Qf8 Bcb6 Rg8 h8N+ Kg5 B6c5 Rd3 Ng6 Rh8 Bd4 Qg8 Ne7 Kh6 Ned5 Kg6 Bdc5 Qb6+ Kd7 Rd2 Qg1+ Ng2 Ra3 Qh7 Qe1 Rf8 Bg1 Rd4 Qf2 Ne1 Rh3 Rd3 Re3 Qb8 Kc6 Qg8 Nb6 Qd8 Nbd5 Qb6+
B1n2Nb1/n1Bp1P2/kr1N4/b2Rn1p1/N3p2n/3q4/RQnnn1K1/2N1r2R w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 e5 h4 b5 f4 g5 Kf2 b3 c4 e3+ Kg2 b2 a5 e4 h5 g3 f5 b4 a6 b3 c5 e2 h6 e1N+ Kh3 g2 h7 d3 f6 d2 a7 Ne7 c6 Nc2 c7 Bb7 c8R Nbc6 Qe1 d1N Bb5 Ne5 Qc3 Nde3 Ra3 N3f5 Qe1 Nh4 Rc5 Bd5 Ba4 Qa5 Rb5 O-O-O a8N Qd2 Nb6+ Kb7 Nc3 b1N Nge2 b2 Nc4+ Ka6 Ra2 Bg8 Rd5 Rb8 Bc6+ Nba3 Qf2 b1N Ba8 Nc8 Nd6 Rb6 Na4 g1N+ Kh2 Qd3 Bf4 Nb5 Nc1 Nba7 Qd2 Nca3 Qb2 Nd2 Bg3 Ne2 Bf4 Nf5 Kg2 Nc2 Bh2 Be7 Bg3 Bd8 Bh2 Be6 Bg3 Rf8 h8N Bg8 Ng6 Rf7 Nf8 Rh7 Rf1 Rh1 f7 Bc7 Rf2 Re1 Rf1 Rb4 Rh1 Ba5 Bf2 Rb7 Bb6 Rb8 Bd8 Rb6 Bc7 Nh4+
3rk1b1/3b3q/1K1B4/n1rNrqNr/N3P1Bb/Rn1q3p/pQ1R2p1/R3R3 w - - 0 1 illegal: No proof kernel
q3rR2/3nnr1k/4bBq1/q1b5/pqpnB2N/6P1/4p1N1/1BKNRNbQ w - - 0 1 illegal: No proof kernel
3r3q/1R1KNn2/qb1b2R1/2k3rp/p2N1NNB/R1pn3B/r1P2b2/1b1Q1q2 w - - 0 1 legal: proof: f4 g5 e4 b5 a4 bxa4 h4 gxh4 e5 d6 Qe2 dxe5 Qh5 exf4 Qd1 f3 Kf2 Kd7 Ke3 Kc6 Kf4 h5 Ke5 a5 b4 f5 g4 f4 d4 h3 g5 h2 g6 f2 g7 a3 Bc4 f1Q Nh3 a2 Qg4 f3 Nc3 f2 Rg1 h1R Nb1 Na6 Bd2 Nc5 Na3 Nh6 g8N Be6 Rg2 Rg1 b5+ Kb6 d5 Nd3+ Ke4 c5 d6 Ra6 d7 Nf7 Nh6 Rg8 Bb3 c4 Be1 Kc5 b6 Bd5+ Kf5 e5 b7 e4 b8R e3 Rb7 e2 Nf4 Bd6 Ba4 Qc8 Nb5 Rd8 Nd4 Qa8 Bd2 e1B Qd1 Qb8 Rg6 Rg5+ Kf6 Qe2 Be3 f1Q Ng4 Bf2 Bc6 Be6 Bg2 Ra7 Bh3 Qc8 Rab1 a1B R1b3 Bb2 Bd2 c3 Be3 Bc1 Ra3 Ba2 Bd2 Bb1 Be1 Bce3 Ke6 Bg1 Bh4 Bgf2 Rb2 Qa6 Rb7 Qf3 Rb2 Qa8 Rb4 Rh8 Rb7 Qf8 d8N Qg7 N8c6 Rd8 Qe2 Qh8 Ne7 a4 Rb8 Rb7 Qd1 Rb2 Rb4 Ra2 Rb7 Kc4 Nb5 Bb6 Nd4 Rc8 Kd7 Kc5 Ra7 Re8 Rb7 Rd8+
R1r1q1Rb/2Q1n1Bk/2R3b1/n1BB2p1/bNK1p1R1/r3P3/q1n4p/3qn2N w - - 0 1 legal: proof: g4 c5 h4 a5 b4 axb4 d4 cxd4 g5 f6 Nc3 fxg5 Nb1 gxh4 Bg5 h3 Bh6 Kf7 Bc1 Ke8 Kd2 Kf7 Kd3 Kg6 f4 b5 a4 d5 c4 e5 a5 h5 f5+ Kh7 c5 g5 e3 b3 a6 b2 c6 h4 c7 h2 f6 h3 f7 b4 a7 b3 Qg4 e4+ Ke2 d3+ Kd2 d4 Qe2 Ne7 Na3 b1Q Qf2 b2 Qf4 Na6 Ne2 Nc5 Ra2 Bf5 c8R Bg7 f8B Qe8 Rc6 Bg6 Qd6 Nb3+ Kd1 d2 Rg1 h1N Ng3 h2 Nc2 Nf2+ Ke2 Qa1 Qc7 b1N Nb4 Nd3 Bb2 Ne1 Nh1 Na3 Rg4 Nac2 Ra3 Rc8 a8R Qa2 Rb8 Rg8 Raa8 Bh8 Bg7 Rf8 Ba3 Rf5 Kd1 Ra5 Bc4 Ra7 Bd5 Ra4 Nd3 Ra5 Bc5 Ra3 Ke2 d1Q+ Kf2 Na5 Nb4 d3 Kf1 d2 Kf2 Qda1 Ke2 d1B+ Kd2 Q1b1 Rf6 Nb3+ Kc3 Bf3 Rc6 Qd1 Rg2 Bg4 Kc4 Bd7 Rg4 Bh5 Rf6 Ba4 Rc6 Bg6 Qb6 Rc7 Rd8 Rc8 Qc7 Qd7 Rf8 Qe8 Rg8 Na5#
1k5b/2q5/B2N2NB/qKp1R1qp/1n4rb/5N1q/1PRQpBnN/1rn4b w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 d4 c5 f4 Kc7 g4 h5 f5 a5 g5 e5 d5 e3 f6 a3 f7 c3 Kd3 e4+ Kc4 a2 g6 c2 g7 a4 Qd4 a3 Nd2 e2 Ndf3 e1B Nd2 h3 Ne2 e3 Qd3 h2 Ng1 e2 Qe3 Nf6 g8N Bg7 f8B Na6 d6+ Kb8 d7 Qc7 d8N Bb7 Ndf3 Nd5 Kb5 Nf4 Ne7 Bh4 Bh3 Nb4 Bc8 Rg8 Qd2 Ng2 Nf7 Bh8 Nd6 Rg4 Ng6 Ra7 Rb1 a1Q Bh6 a2 Be3 Bd5 Bf2 Ra3 Ba6 Rd3 Qc3 Rd1 Bh6 c1N Qd2 Ba8 Ne1 Bd5 Ngf3 Be4 Rg1 h1Q Rf1 Qh3 Nh2 Nb3 Qe3 Nf4 Bg1 Bh1 Rc1 Ng2 Rc2 Qc1 Rf5 a1Q Nef3 Rf1 Qc3 Qg5 Bf2 Rb1 Qd2 Nc1 Re5 Qaa5#
6q1/N3n2b/b1nr1b2/1p2RKRr/BrpB1Rpk/5nN1/1B1P3r/B4Q1q w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 a4 e5+ Kg3 Kg5 h3 b5 f3 c3 a5 c2 a6 b3 a7 e3 Bb2 c1Q Ra4 e2 Rf4 e1R Be2 c4 Na3 e4 Nc2 e3 Nd4 Ne7 Nc6 Ng6 h4+ Kh5 Rh2 Ba6 Rg2 Be7 Bd3 e2 Bc2 Bg5 Bd4 b2 Ba4 b1B Ba1 Kh6 h5 Bf6 Bb2 Kg5 h6 Rf1 h7 e1N Ne2 Qg8 Bd4 Rh1 Ba1 Nd3 Qf1 Rh5 Bb2 Nde5 Ba1 Qf7 Bd4 Rd8 h8B Rd6 Ba1 Qg8 Bb2 Nbd7 Ba1 Re8 a8R Nb8 Na7 Nbc6 Rc8 Ree6 Re8 Rh2 Bb2 Rd5 Rg1 Red6 Re6 Nh4 Re8 Neg6 Re5+ Bf5 Rfe4 Kh5 f4 Nf3 Ba1 Nge7 Rg2 g5 Bb2 Bg6 f5 Bh7 Rf4 Ng6 Rg1 Rd3 Rg2 Rb3 Bg7 Rb4 Bd4 Be7 f6 Bd8 f7 Bf6 f8B Qa1 Kf2 g3+ Ke3 Qb1 Rg1 g2 Ba1 Qe1 Ke4 Qd1 Kf5 g4 Rh1 g1R Ng3+ Kh4 Bb2 Rd7 Bc5 Rd6 Bcd4 Rg2 Qd3 Qg1 Qf1 Rh3 Rh2 Qh1 Ba1 Rg1 Rhe2 Rg2 Rc5 Rgh2 Bdb2 Bd8 Bgd4 Bf6 Ree5 Qe8 Red5 Qb8 Ke4 Qg8 Nf5+ Kg5 Ng3+ Kh6 Rdf5 Rh5 Rce5 Rg5 Ne2 Kh5 Ng3+ Kh4 Re7 Rg2 Ree5 Rh5 Rg5 Rh2 Kf5 Nge7#
1B3BR1/1rbNQRn1/1Nq4r/P3nB1b/RR1r3K/1pp1q1p1/3kq3/3n1q2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 Kd4 a5 b5 d3 f5 h5 c5 h6 g5 e5 g3+ Kf3 c3 h7 b3 e6 g2 e7 g4+ Kf2 c2 e8R g3+ Kf3 b2 Nh3 g1Q Ra2 c4 Bg2 b4 Qe1 Nf6 Qe6 Nc6 Rh2 Qe7 Nc3 b1R Rb2 Nh5 Nd5 Ng7 Nb6 Kc3 d4 b3 d5 Ra7 d6 Rb7 d7 Qe1 Be3 Rd1 d8R c1Q Ng5 Rd4 Bh3 Ne5+ Kg2 Qd7 Re7 Qc6+ Nf3 Qe2+ Bf2 Bd7 Rf7 Be8 Ra2 Bd6 Qe7 Qce3 Ra4 Bc7 Bg4 Kd3 Kh3 c3 Kh4 Kc2 Rh1 Kd3 Rha1 Kc2 Rb4 Kd3 Ng1 f3 Raa4 f4 Bf5+ Kd2 Rc8 Bd7 Rg8 Be8 Rff8 Bh5 Rf7 Bg6 Nh3 Bh5 Ng5 Ng4 Bg1 f2 Ne6 f1N Nf8 f3 Nfd7 f2 Rd8 Nfh2 Rg8 f1Q Bf2 Rd3 Bg1 Ne5 Bf2 Nhg4 Bg1 Q3f3 Bc5 Ne3 Bd6 Bd8 Bc7 Nd1 Bb8 Qfe3 Rgf8 Rg8 h8B Bc7 Rc8 Rd6 Re8 Rh6 Ref8 Ne8 Bg7 Rgh8 Rg8 R8h7 Bf8 Ng7 Qg5 Rd6 Qf6 Rh6 Qe7 Rd4+
nq2qNR1/Nn1B1k2/1q3p1r/Q2r1pK1/pR4RP/3N2bb/b7/2nb2BR w - - 0 1 illegal: No possible last move, all moves rejected
6q1/1Nbb1q2/Q1B1P2n/2KNB2n/3r3N/1r1R1pR1/1rp2Rp1/nkq1R1r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 Kd4 a5 b5 d3 g5 a6 f5 e5 c5 a7 f3 e6 c3 h5 f4 h6 c2 h7 g3+ Ke1 f2+ Kd2 g4 Ra5 b3 Rh4 b4 Rh6 c4 Ba3 c1N Be2 f1Q Rhh5 g2 Rh6 g3 Rh4 b2 Rg4 b3 Rf5 Nd7 Bf3 Rb8 a8R Ndf6 Bc6 Nh6 Nc3 b1R Nd5 b2 Qe2 Nh5 Bd6 Rb3 Ra3 c3+ Kc2 Rg8 h8R Bd7 Bb8 Bd6 Nf3+ Kc5 Ra1 g1R Nh4 g2 Rg3 Rg4 Rff8 Bc7 d4+ Kd6 Rf5 Qg8 Qa6 Qf3 Ra3 Qf1 Re5 f3 Ra2 Qb5 Re1 Qb7 Ne3 Re4 d5 Kc5 d6 Kb4 Rh7 Rd4 Rf7 Be8 d7 Qa7 d8N Bd7 Rf5 Qb7 Re2 Qa7 Rf2 Qb7 Re5 Qa7 Raa5 Qb7 Rad5 Qa7 Qb5+ Ka3 Nb7 Ka2 Rd6 Ka1 Nd5 Ka2 Qd3 Ka1 Re1 Ka2 Kd1 c2+ Kd2 Rb5 Kc3 Nb3 Ref1 Na1 Re1 Rb3+ Kd2 Bc8 Rd8 Bd7 Ke3 Ba5 Be5 Bc7 Rg7 Rc1 Rg5 b1Q Rg3 Rb2 Qe2 Rcd1 Qb5 R4d3+ Ke4 Rdb3 Qe2 Qc1 Qd3 Qa6 Kd4 Kb1 Kc5 Qa8 Qa6 Qf7 Rdg8 Rd2 R8g4 Qae8 Rd4 Qeg8 Rd3 Rd1 Rde3 Rd4 Rc3 Rb6 Rd3 R6b3
4n3/nqR5/1NpRB3/1R3qB1/q3p3/n1k2B1b/rb1p2BP/Q1rbNKb1 w - - 0 1 illegal: No proof kernel
b1k1q1qN/4q3/RRpQP3/2R2q1B/5B2/B2p2n1/rpr1B2n/bnN2bK1 w - - 0 1 illegal: No proof kernel
R3RQ2/8/P1p2b1r/knKbNbrp/p5n1/4BnNB/1R1q3r/N3Rnq1 w - - 0 1 illegal: No proof kernel
1r1n1q2/R1Bk1b1p/1b2R3/1Rp3qr/5BB1/bKp1r3/1nN2N1P/1qr2B1Q w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 d4 g5 a4 b5 f4 e5 f5 g3 d5 g4 a5 g2 f6 g3 a6 b4 d6 e3 a7 e4 f7+ Kd7 Qf3 e2 Ra6 b3 Qd3 b2 Bh6 Nc6 Bg7 Nb4 Rc6 Nh6 Na3 b1Q+ Qd1 Qg5 Nf3 g1B Be5 g2 Nc2 Bb6 Nd2 g1Q Bf4 Q1c5 Rg1 Rb8 a8B Rg8 Qc1 Be7 f8R Nf7 Bb7 Nd8 Rf7 Qcf5 Rc5 Rg6 Rb5 Rh6 Rg3 Rh5 Re3 Qff6 Bd5 c6 Rg7 Qf8 Be6+ Ke8 Bf5 Be6 Bg4 Bf7 Qd1 Na6 Qc1 Nc5 Qd1 Na4 Qc1 Nb7 d7+ Kd8 Qd1 Ba3 Qc1 Ke7 d8B+ Ke8 Bdc7 c5 Rg6 Nd8 Re6+ Kd7 Rd3+ Qd6 Rd4 Nb2 Ra4 Qf8 Ra7 Nd1 Nf3 Nb2 Ng1 Rb7 Nh3 Rb8 Kf2 e3+ Kf3 e1R Ke4 e2 Nf2 Na4 Kd3 Rd1+ Kc4 Nb2+ Kb3 e1R Ne3 Rd3 Nc2 Ree3 Qd1 Rd2 Qf3 Rd1 Qh1 Rc1
R6n/r3R1Rp/B2b2pq/Rr1b1bB1/b2rB1N1/1k1nnNq1/1p1Q2P1/4K3 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 h4 cxd4 b5 Qxh4+ Kd2 Qh2 b6 axb6 Ke1 b5 Bb2 b4 Ba3 Ra6 Bc1 Ra8 c4 Ke7 e4 Ke6 a4 f5 e5 d5 a5 b5 c5 b3 c6 b2 a6 d3 a7 g6 c7 b4 Na3 b1Q Bd2 f3 Be2 b3 Bc1 b2 Kf1 d4 Bg5 Kd5 e6 d2 e7 d3 e8B f4 Qc1 d1R+ Kf2 d2 Bf6 Bd6 Be7 Nc6 Bb5 Nb4 Nc4 Nh6 Bed7 Qd3 Bg5 Nf7 Bf5 Qh6 Bh3 Bf5 Be7 Rhb8 c8R Nh8 Bd7 Rb5 Na5 Qc3 Nc6 Kc4 Ra5 Kb3 Bh4 Nc2 Rc7 Ne3 Bg5 Qe5 Ne2 Qc3 Re1 Ng4+ Kf1 f2 Rb7 Qg3 Ng1 Ne3+ Ke2 f1N Nf3 Nh2 Nce5 Nhg4 Bc6 Nf2 Ng4 Nc2 Nh4 f3+ Kf1 Ne3+ Kg1 Rc8 Rg7 Rc7 a8R Ra7 Bb7 Ne4 Ba6 f2+ Kh1 f1B Kg1 Bc4 Nf3 Bd5 Qc2+ Kb4 Qd3 Nf2 Qc2 Nc4 Kf1 Ne3+ Ke2 Rb1 Qc1 d1B+ Kd2 Bdc2 Re2 Kb3 Ke1 Ra1 Qd1 Ra4 Qd2 Nc4 Re4 Ne3 Ree7 Rd4 Nge5 Bd7 Bf5 Bc8 Be4 Bf5 Qc1 Kc3 Qd1 Ba4 Qd2+ Kb3 Ng4 Nd3+
2qB1rB1/b2NN1p1/Qrr5/RN3rp1/1n2R1PB/q2p4/B1k2n1b/Kn3b2 w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 f5 d5 fxe4 d6 h6 Qf3 cxd6 Qf4 d5 Qf5 d4 Qg5 hxg5 Kd2 Kf7 f4 Ke6 h4 Kf5 a4 e5 c4 b5 Kc2 d5 Kb2 e3 g4+ Ke4 a5 d3 f5 b3 a6 b4 a7 e2 c5 e1R h5 d2 c6 d1Q c7 d4 h6 Nf6 h7 Ba6 c8B Qd3 Bd7 Nc6 Rh5 Qc8 Rh2 Bc5 Be3 Rf8 h8N Rc1 Bf2 Qf3 Bg2 Kd3 Bh4 e4 Nc3 e3 Ng6 e2 Be6 e1B Nb5 Bg3 Ne7 Ne4 f6 Nf2 f7 Bc7 Rh1 Bh2 Ra5 Rb8 a8Q Ba7 Bd5 Rb6 Qb7 Rc5 Ka1 Kc2 Be6 Qe3 Nf3 Rf5 Ne5 Qf3 Re1 b2+ Ka2 b1N Re4 b3+ Ka1 Qg3 Nd7 Nb4 Bf1 Rc6 Bfc4 Rg8 f8B Qf3 Nd6 Qh3 Bcd5 Bf1 Qa6 Qg3 Bf7 d3 Nb5 Qd6 Ng6 Qc5 Be7 Rf8 Bg8 Na2 Nc3 Qa3 Bd8 Nb4+ Na2 Nd2 Bc4 Nd5 Bb5 Qd6 Nc3 b2+ Ka2 b1R Ne7 Rb2+ Ka1 Nb1 Bc4 Rbb6 Ba2 Qa3 Nb5 Nb4
qnBrqB2/1n3np1/4QKp1/NBR1P2b/q1N5/p1k1qR2/1r1b1N2/2N1r3 w - - 0 1 illegal: Other
3RNB1R/NqK2Rpr/rP4NQ/r1p2np1/bn6/3B1nN1/1k2q3/bq3r2 w - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 g6 exf4 Bh3 hxg6 Bf1 g5 Kf2 Ke7 Kf3 Ke6 Ke4 a5 h4 f5+ Kf3 Ke5 b4 Kd4 e4 c5 b5 a3 d3 a4 e5 c3 h5 c2 b6 a2 h6 a3 h7 Ra6 e6 Qd5+ Ke2 f3+ Kf2 f4 e7 Qb7 e8N Nh6 Nc3 Bd6 Rh2 Nf5 Nb5+ Ke5 Rh1 Nc6 Na7 Bd7 Ne2 Ncd4 Ng3 Ba4 Rb1 a1Q Rh2 Rf8 h8N a2 Ng6+ Kd5 Bb2 c1N Rh8 Be5 Be2 Rf6 Qh1 Rc6 Qh6 Rc8 Kg1 f2+ Kg2 Nf3 d4 Nd3 Rf1 Kc4 d5 Kb3 d6 Nb4 d7 Qb1 d8R a1R Bd3 Ra3 Bc1 Ba1 Bb2 Ra5 Bf6 Ra6 Be7 Kb2 Bf8 Ra8 Re1 f1R Re7 Rc3 Rf7 Rc2+ Kh3 Rh2+ Kg4 Ra5 Nc8 R8a6 Na7 N3d4 Rc7 f3 Re7 f2 Rf7 Ndc6 Kf3 Rh3 Ke4 Ncd4+ Ke5 Nf3+ Ke6 Rfh1 Rc7 f1Q Rf7 Qfd1 Ne4 Rf1 Ng3 Ne3 Kd6 Rh2 Qh3 Qe2 Qe6 Rh5 Qh3 Rh7 Qh6 Qd5+ Kc7 Nf5 Bc4 Qde4 Bd3 Qb7+
2k2b2/1bN2p2/2BqrB2/1p1RN1P1/N1nQq1nN/1K4n1/r1n3bp/2BR2r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 g4 b5 d4 c5 Kd2 h5 Kc2 b3+ Kb2 f3 e4 f2 d5 c3+ Ka3 h3 g5 h4 a5 h2 a6 h3 a7 c2 d6 c4 e5 c3 Be3 c1N Nd2 c2 Bd4 b2 Be3 b1Q Ndf3 Na6 Bg2 f1B Nh4 Nf6 Ngf3 Rh6 Qd4 Nd3 Bc1 Nb2 Kb3 Bb7 e6+ Kc8 e7 Nb4 e8N Ng4 Nc7 Re6 Ne5 Qf6 Bc6 Bg2 Rg1 h1N Rd1 h2 Ra3 Ng3 d7+ Kd8 Ra4 Qe7 Ra3 Qd6 Ra2 Nc4+ Rb2 Rb8 a8N Rc8 Nb6 Ra8 Na4 Ra7 Bf4 c1R Be3 Qe4 Rbd2 Ra6 Rd3 Ra1 Bc1 Ra2 Qf2 Nc2 Rd5 Rf6 Qb6 Rf1 Qd4 Rg1 Na8 Ke7 d8B+ Ke6 Bf6 Rb6 Bg7 Ke7 Nc7 Kd8 Bh8 Kc8 Bf6 Qe7 Be8 Re6 Bc6 Qd6
Br2B3/2b1P1q1/2Rq2Nk/nbp1nn2/p1q1rR2/1q1Q1RB1/R1r3p1/3K3N w - - 0 1 illegal: No proof kernel
7B/2nrpn2/pk1pq3/1BR2r2/nN6/n1Q1Rbr1/1BPbq1b1/1K1BNN2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 h5 f4 d3 g4 a3 b4 a2 g5 e3+ Kc3 h3 Kb2 d6 g6 Kd7 f5 Kc6 g7 h2 b5+ Kb6 f6 e2 f7 e1Q Nh3 d2 Na3 h4 Qh5 d1N+ Kb3 Nb2 Nf4 h3 Bc4 Qd7 Nd3 Qde6 Qe5 Qe2 Nb1 Na4 Nd2 Na6 Qc3 Nh6 g8B Nc7 Re1 h1R Nf1 h2 Bb2 a6 Ka3 Bg7 f8B Ra7 Bf7 Rg8 Bh5 Nf7 Rab1 a1N Ka2 Bh8 Bg7 Nb3 Ra1 Rb7 Kb1 Na5 Be5 Bg7 Ra3 Bf8 Bh8 Rg3 Rd1 Bh6 Ne1 Bg5 Rd5 Bd2 Rc5 Bd7 Bf3 Bc6 Bg4 Bg2 Bd3 Qf2 Bd1 Nc4 B3e2 Ra7 Bd3 Qfe2 Rb3 Kb7 b6 Rg1 Ra3 h1B Rb3 Rf3 Ra3 Rf5 Rb3 Nce5 Bb5 Nc4 Ra3 Bf3 Rb3 Rg3 Ra3 Kc8 b7+ Kd8 b8N Bhg2 Rb3 Kc8 Nc6 Kb7 Ra3 Kb6 Rb3 Ne8 Nb4 Rd7 Qf6 Nc7 Re3 Kb7 Qd4 Kb6 Qc3 Na3+
1r3B2/qq1Rp1KP/p1NN4/1b1r4/R6p/2Nr1kn1/Nn1Qb1n1/4bnRB w - - 0 1 illegal: No proof kernel
2b1RBn1/2nrpp2/K4R2/bBk5/q3BR1N/p4q1r/1PnN2Q1/b2B1q1n w - - 0 1 illegal: No possible last move
2r2Br1/1NNP3k/2b2RN1/3Q2b1/B2pn3/nN1r2Bn/K1pp3R/q1q2b1r w - - 0 1 illegal: No proof kernel
1r2R1KN/2bPBr2/1kN2nb1/3p2p1/B2R3q/n1q2np1/Q1r1N3/B1B3rq w - - 0 1 illegal: No proof kernel
3bKr2/2bP2N1/3pbq1p/6k1/nqBq1R1n/q1rNBB2/p1QRB3/n3R3 w - - 0 1 illegal: No proof kernel
3N1Bk1/bb1Pp1B1/1B2R2n/1K2b3/p3RpQ1/2q1R2N/qqr1b2n/3r1n1B w - - 0 1 illegal: No possible last move
1R3Bb1/3pb3/n1N4N/p3pbBB/kq2rb1P/q1Q1N1rR/K4n1q/1N4r1 w - - 0 1 illegal: No possible last move
4Br2/1Nkp1QRb/pN2qq2/n4R1q/3Pn1qr/B1bpN2n/K6r/B1B5 w - - 0 1 illegal: No possible last move
1kN1bK2/nrpR4/n2PR2q/rpR5/qNN5/4nBBp/1RbQ1b2/nq6 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 h5 Ke4 b5 Ke5 f5 a4 c3 d4 h3 e4 c2 g4 h2 g5 f3 d5 b3 g6 b2 a5 f4 d6 f2 a6 h4 g7 h3 a7 f3 Ne2 Qh4 Nd4 Na6 Bf4 c1N Qd2 Nb3 Nc2 Be7 Nb4 Qh6 Be2 f1Q Ra2 f2 Bf3 Bh4 Bg3 Qd1 Na3 b1Q Rb2 f1N Nc4 Ne7 g8R Na1 Rg7 Qa4 Rh7 Rb8 a8N Ne3 Rc1 h1B Nab6+ Kd8 Rc3 Bf5 Nc8 Rb7 Rcc2 Bg6 Ke6 Nc6 e5 Na7 Re7 Be4+ Kf7 Bg2 Rc1 Bc2 e6 Rg8 Ra2 Rg4 Rb2 Rd4 Kg8 Rd3 Rg7 Ra3 e7+ Kd7 Kf8 Bh1 Bd1 Bc6 Bf3 Ra2 Bf4 Bf2 Bg3 Bd5 e8R+ Bf7 Re5 Kd8 Re1 Be8 Rc5 Ng2 Re6 Ne3 Ne7 Kd7 Nec6+ Kc8 Ne7+ Kb8 Nc8 Qb3 N8b6 Ra5 Nc8 Qh4 Rf7 Qa4 Rd7 Qh6+
1rRqr2B/Nnp2k1p/1qb5/Q1B1n3/2r1N3/1bR2Np1/1bP5/Nb1qB2K w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 gxh4 g5 d5 Bc4 dxe4 Be2 f5 Bg4 fxg4 Kf1 e5 Kg2 b5 f4 e3 d4 e4 a4 b3 f5 b2 d5 e2 f6 e1Q g6 e3 f7+ Ke7 a5 e2 g7 b4 a6 b3 a7 Qc3 Qd2 e1Q Nf3 Qce3 Rh3 Be6 Qa5 Qb6 Nbd2 b1B Bb2 Nd7 Ra4 Rc8 a8N Ne5 d6+ Kf6 d7 Rb8 Kh2 Ba3 f8B Kf7 Bc5 Nh6 g8N Qd1 Nf6 Re8 Nfe4 Nf5 Bc3 b2 Nb3 Bd5 Be1 Nd6 Na1 Nb7 Kh1 Bb3 Rg3 h3 Rb4 Qg5 d8B h2 Bf6 Qgd2 Bh8 Qd8 Kg2 h1B+ Kg1 Qa6 Nb6 Bg2 Nc8 Qb6 Na7 Bh1 Nd4 Bg2 Rc3 g3 Nf6 Bc6 Nf3 B1a2 Rd4 b1R Ne4 Rb2 Rd2 Bb1 Kh1 Ra2 Rd6 Bb2 Rg6 Ra4 Rg8 Re6 Re8 Rc4 Rg8 Q8d3 Rd8 Re8 Rc8 Qd8
1r1nr1B1/1PBkbNq1/5b2/N5qp/bB2qN2/1QnpRR2/1pB3r1/1K3b2 w - - 0 1 illegal: No proof kernel
N2Rn3/Bp3qq1/2RqPN2/qR1r2B1/B2nb1r1/2Q2p1k/3K2p1/2B1b1br w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Kf6 e4 Kg5 h3 Kh4 d5 f5 a5 c5 d6 g5 a6 c3 d7 c4 a7 f3 e5 f4 Bd2 c2 Ne2 c1R Bc3 b3 Rg1 g3 Bb4 b2 Rh1 c3 Nd2 b1Q Ra2 g4 Ba3 g2 Rb2 g1B Nd4 c2 Nb5 g3 Nc7 g2 Rb5 Nf6 Ne4 f2+ Kd2 Qa2 Qf3 Rh5 Qc3 Ne8 Nf6 Nc6 e6 Bb4 Be2 f1Q Bd1 Nd4 Bb2 Qe7 d8B Qd6 Be7 Rb1 Bc1 Rd5 Bd8 Rb8 a8R Qa5 Ra6 f3 Na8 Bd7 Rc6 Kg3 h4 Qd3+ Ke1 Qg6 h5 Qg7 h6 Rc8 h7 Ra1 Rcb6 Rc4 h8B Bc6 Kd2 Qf7 Rh6 Qg7 Rg6+ Kh3 Ra6 Qf7 Rg8 Qg7 Bb6 Rb1 Ba7 Ra1 Kd3 Rb1 Bg5 c1Q Ba4 Qcf4 Rf8 Qf5+ Kd2 Qfg6 Rab6 Q6f7 Ra6 Rf5 Rab6 Be4 Rc6 Rd5 Rg8 Bh2 Rf8 Rh1 Rg8 Qgg6 Bg7 Bg1 B7h6 Qgg7 Kd1 Nc7 Rd8 Ne8 Bc1 Bd3 Bhg5 Be4 Qa1 Bd2 Qc3 Be1 Qa1 Nb3+ Bcd2 Bd3 Bc1 Rg4 Qa3 Nd4 Qc3 Bef2 Kd2 Be4 Ra6 Bg3 Rc6 Be1+
q2K2N1/pn3b2/BQR1Nr1N/b1n2N2/4P1r1/1pp2n2/2R1n3/kqBRr1q1 w - - 0 1 illegal: No possible last move
B5b1/p2nRr2/1B2RNn1/p3bkN1/1p2n2b/3NK1br/1B1PQ3/Nq3qq1 w - - 0 1 illegal: No proof kernel
RBqb1nK1/p2rq2B/1B3p1n/1q1Rp1NN/NQ6/1n4nr/k2Nr2P/7b w - - 0 1 illegal: No proof kernel
Rnb3r1/ppP3n1/2k1r1QN/n1N5/5Bp1/bb4r1/R1Bb2q1/BKR3qB w - - 0 1 illegal: No proof kernel
1N2RNqr/1n2Q2b/PB1r1rBk/1B2p3/rnp3B1/1K2R3/2pr2Nb/2r2b2 w - - 0 1 illegal: No possible last move, all moves rejected
2n1RBq1/3Q2p1/1b1nNnnk/PN4R1/nr1p1R1p/1r2K1nB/R3b3/1B5b w - - 0 1 illegal: No possible last move
b4k2/QB1P1B2/N2r1R1b/bp1pqr2/1b1pN1n1/1N2b1Nn/r2Rb3/1K2B3 w - - 0 1 illegal: No proof kernel
2k5/1N1pb3/NPB2rB1/BB2r1pr/4r1R1/1b1n3p/n1Q1b1q1/1KR2Rrr w - - 0 1 illegal: No proof kernel
1n1br3/1Bp1rbQ1/3nnrNq/2knK1B1/B1P3p1/p7/2BRn3/2R1nRN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 e5 Qd3 exd4 Qg3 g5 Qh4 gxf4 g5 Bh6 Qg3 Bf8 Qg4 hxg4 Kd2 Ke7 Kd3 Kd6 Ke4 a5 h4 f5+ Kd3 f3 c4 a3 b4 f2 e4 a2 h5 a4 g6 a3 g7 f4 h6 f3 b5 Qg5 b6 Nf6 g8B Nd5 h7 Nf4+ Kd2 d3 Ke3 d2 Kd4 d1N b7 Ne6+ Kd3 Be7 e5+ Kc5 Ke4 d5+ Kd3 d4 Ke4 d3 Bg2 f1N Bd2 f2 Bf4 d2 Nc3 Qh6 Rc1 a1N Nce2 Nfe3 Bg5 f1R Nf4 Bd8 Ng6 Nf5 Bf7 Re8 h8Q Nde3 Qg7 d1N Bf3 Nf4 e6 Re7 Ke5 Nac2 Bg8 Ned5 Bh7 Nd6 Be4 Na6 b8R Ne1 Rb2 N1c3 Rd2 Nb8 Bg2 Nce2 Bf3 Rf7 e7 Ne6 e8B Re7 Ba4 Bd7 Bg2 Be8 Be4 Bf7 Bf3 Ndc3 Bb7 Rf4 Nf3 Nd5 Rf1 Bg8 Ng1 Rf8 Nh8 Bf7 Bhc2 Rfe8 Ng6 Ra6 Ba8 Rb6 B8c6 Rb3 Ba8 Rf3 Bb7 Rf6
n1b5/2p1N1QB/1N2q1b1/r4pkB/3rPp2/2RR1nb1/b3rb1B/1KNb2B1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Ke7 d4 Kf6 Kd2 b5 Kc2 c3 g4 h3 a5 h2 e3 b3+ Kd3 b4 d5 c2 a6 b2 d6 b3 a7 Kg5 d7 Qe8 d8B+ Nf6 Be7 Nd7 Ne2 Ne5+ Kd2 Nf3+ Kc3 h5 Bd2 c1B Be1 h4 Qd7 h3 Bc5 Be7 Ra3 Nd5+ Kd3 f6 Bg3 Nb6 Nbc3 b1R Nd5 b2 Rg1 h1B Kc2 h2 Rc3 f5 e4 Be3 Nc1 Bf2 Rd3 Bd8 Bd4 Qe6 Be2 Be7 Rgd1 Rd8 Rc3 Ra1 Be3 Ra5 Rdd3 b1B+ Kb2 Rb8 a8N Ba2 Bd1 Bb4 Ne7 Bg2 Bd4 h1B Bh2 Bg3 Bf2 Bc5 Bfg1 Bcf2 Ka1 Bf1 Qd4 Be2 Qg7+ Kh4 g5 Rd4 g6 Kg5 Qe5 Bg2 g7 Bh3 g8B Bg4 Kb2 Bh5 Bh7 Bg6 Qg7 Rb7 Ba4 Bd1 Be8 Nc4+ Ka1 Rb2 Nb6 Re2 Nbd5 Bab3+ Kb1 Nb6 Bf7 Na8 Nb6 Bc4 Qh8 Bh5 Qg7+ Kh4 Bfg8 Be8 Bg6 Kg5 Bh5+ Bg6 Bh7 Ba2+
2nBb1n1/2NqNqkB/R6q/b2qq1P1/1B6/2KRrr2/p2R1pp1/2RQ1q2 w - - 0 1 illegal: No proof kernel
n2br1bN/2Q1Nr1r/2np3R/PBK1b1k1/2pR4/1RRN2q1/r1p5/Br2b3 w - - 0 1 illegal: No possible last move, all moves rejected
1nq2Bb1/q7/pQB4B/7K/1bbRB1bN/2bNP1kN/b1n2p1p/1r3Rr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 b4 d5+ Kh5 f5 c4 a3 g4 d3 c5 d2 g5 h3 g6 h2 b5 d4 b6 f3 c6 Kf4 b7 f2 e3+ Kg3 c7 d3 g7 f4 Nh3 a6 Ra2 f3 Bb2 Bb4 Qb3 d1B Bd4 d2 Qc3 Bb3 Ng5 d1Q Bb5 f1B Qe1+ f2+ Qe2 Ne7 g8N Nf5 Nf6 Bg8 Bc5 Nd4 Nd7 Nc2 Bf8 Qd4 Bc6 Qa7 Qb5 Bfc4 Rf1 h1B Nh3 Bhd5 Ne5 h6 Rb2 a2 Qb6 a1B Nd2 Bde6 Rb3 Bac3 Ndf3 Bcd7 Ra3 Qc8 Nh4 Rh7 Ra4 Rg7 Nd3 Ba2 Ra5 Bec4 Rd5 Bde6 Rd4 Bf5 Qa5 Rg6 Be4 Rb6 Bc6 Rb5 Qb6 Bg4+ Kg6 h5 Be4 Qd7 c8B Qc7 Bd7 Qc8 Nf3 h4 Bdc6 Bf5+ Kh5 Bd7+ Nhg5 h3 Nh4 h2 Bh6 Bc5 Nh3 Rb1 Kg5 Bg4 Kg6 Nd7 b8B+ Bd6 Bc7 Nb8 Bd8 Bdb4 Be7 Nd7 Bef8 Rb8 Rh1 Rg1 Kg5 Rb7 Kg6 Nb8 Kg5 Bg4e6 Kh5 Bg4+ Kg6 Rg2 Qc7+ Bd6 Rf1 Rb1 Qb6 Rg1 Kg5 Bdb4 Kg6 Bf5+ Kh5 Bg4+
b2qN2b/rN3nP1/2B1p3/r1B4k/1r1rb2N/K3B1p1/2BbpRQ1/3R2bn w - - 0 1 illegal: No possible last move, all moves rejected
2K2bbq/N2R1RpB/Q2b1B1n/1PR1RrN1/1n2p3/3rp2B/1qb4k/4bb2 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 c4 e3 Ke2 Kf7 Kd3 Kg6 Ke4 Kh5 Kf5 Kh4 f4 d5+ Ke5 a5 b4 g3 Ra3 g2 Nc3 d3 c5 d4 Nb1 Qd7 h3 Kg3 f5 d2 h4 Na6 c6 Rh5 c7 d3 Qb3 d1B Bd2 Bc2 Nh3 g1B Qa2 Bf2 Rc3 a3 Rg1+ Kh2 Rg5 e6 f6 a4 f7 Be7 f8R Qe8 Be2 Bd7 c8B Bb5 Bf3 Ra7 Be4 Be1 Rc7 Bb3 Bc3+ d2 Bd7 Bf1 Rc5 Qd8 Rgf5 Rg5 h5 Qa8 Qa1 a2 h6 d1B Na3 Bdc2 Nb5 Qd8 Bc8 Rd7 Na7 Rd3 b5 Nb4 Bd7 Qc8 Rd8 Bd5 h7 a3 h8R Nh6 Rhe8 Bdb3 Qb2 a1B Qa2 Bd5 Rf8 Rh5 Rg5 Bc4 Bh7 Bb3 Bd4 Bac3 Qa1 Bg3+ Rf4 a2 Rf5 Bce1 Rg5 Bf6+ Kd6 e5 Be6 e4 Rd7 Qe8 Kc7 Qh8 Bg4 Bd8+ Kc8 Bg8 Rff7 Bd6 Bf6 B8e7 Rge5 Rf5 Ng5 Bf8 Bh3 Rd4 Qb2 a1Q Qa2 Qb2 Qa6 Rd3
n2bB3/N1B1QpN1/1r2Rr1B/4Nn1p/PRn1pb2/4b3/1nn1K3/1bkq3N w - - 0 1 illegal: No proof kernel
Bb5K/2b1Rp2/k1Bp2n1/NbR5/1pbP1Bbq/R3Q3/1nqN1R1r/2rb4 w - - 0 1 illegal: No possible last move
NR3q1n/1QpBB1B1/N1b2q2/1nr1B1R1/pr1b2n1/n1p2k1P/n7/2K2n1R w - - 0 1 illegal: No possible last move
n3R1KB/3n3R/Nb1n2Q1/1q1p3p/b2BB1R1/bk2p1rr/2N1bPn1/B6r w - - 0 1 illegal: No proof kernel
1NR3rk/n1R2qnN/b4P2/1rnp1r1r/2n1R3/BpK3QB/2Bb1pb1/3B4 w - - 0 1 illegal: No proof kernel
R4N2/r2BBnNb/3pqn1R/1nK2Nn1/1p2R2p/b4R2/Pb3rb1/Q3r1k1 w - - 0 1 illegal: No possible last move, all moves rejected
r3b3/k2nR3/NRp2rb1/br1pn2p/qR1P1B1R/7N/1b2N3/QnB1r2K w - - 0 1 illegal: No possible last move, all moves rejected
1B1n2Nr/NRb2Bp1/1Rp2Q2/2bN4/kq2BK2/bp2rn2/b6P/1nnr1B2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kc6 a4 b5 e4 f5 e5 g3+ Kf3 b3 e6 b2 e7 c3 e8B+ Nd7 a5 b4 a6 c2 a7 g2 Be2 Bc5 Be3 c1B Bh5 Ne5+ Kf2 f3 Kg3 f2 Bf1 Qf8 Qb3 Ne7 Ne2 Kb5 d5 g1B d6 N7c6 d7 Nd8 Nd2 b1N Ra4 Ba3 Bf7 Qd6 Qc3 f4+ Kg2 f3+ Kg3 Bb7 Bf4 Bd5 Ne4 Ba2 Ra6 b3 Rb6+ Ka4 Nf6 Qd4 Ng8 Qb4 Qd4 Rc8 a8B Rb8 Be4 Bd6 Bg2 f1R Qa1 Rd1 Bf1 f2 Nc3+ Ka5 Nd5 Ka4 Qb2 Ra8 Rb7 Ra5 Qc3 Rc5 Qf3 Rc3 Rb6 Re3 Rb7 Ne6 d8N Bc5 Nc6 Nd8 Na7 c6 Bg5 Bb6 Kf4 Bc7 Bh4 Bd6 Bg3 Bc7 Bc4 f1N Ba6 Nfd2 Bf1 Ndc4 Rb6 Bf2 Rg1 Nb2 Rg2 Bg1 Rd2 Bf2 Rd4 Bg1 Rc4 Bf2 Rc5 Bg1 Rcb5 Bf2 Rb7 Bg1 R5b6 Nbd3+ Kg5 Nc1 Qf6 Rc3 Kf5 Bc5 Bf4 Ng4 Bd6 Re3 Kf4 Ne5 Rb5 Ba5 Bb8 Bc7 R5b6 Nf3+
BNnN1n2/1nK1R1b1/2N4N/3rr2k/1pb3b1/Q2qbP1p/3q1p2/R1R1n1B1 w - - 0 1 illegal: No proof kernel
1R2qrKR/b1k4r/n4B2/1Bqbb3/p1Q1r1b1/rNnBPp2/4N1pN/B7 w - - 0 1 illegal: No possible last move, all moves rejected
Br2r1bk/1r6/1b5q/2rBp1RK/n1N3NR/p1b3RP/1Q1B1qp1/nbB5 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 b4 a5 f4 g5 c4 Kg7 c5 d5 f5 e5 h3 g3 c6 e3 Kf3 g4+ Ke2 g2 c7 a3 b5 g3 Kf3 a4 Kg4 d3 b6 e2 b7 e1Q Ra2 d2 Nf3 g1R Rc2 g2 Bd3 d4 Ba6 d3 Bb5 a2 Nh2 a1B Rc5 a3 Rc6 Bc5 Re6 Ne7 Ra6 Nbc6 b8R Bb6 Ba4 Qf2 Qc2 d1R Bb3 d2 Bd5 Be6 c8B Bg8 Bb7 Nc8 Ra4 Bc3 Qb2 Nb4 f6+ Kh7 f7 Qf8 Kg5 Nc2 Kh5 Na1 Rh4 Qd6 f8B Qh6+ Kg4 Ra5 Bb4 Rc5 Ba8 Kg7 Ba5 Rh7 Rb7+ Kh8 Rg7 Rdf1 Rg5 d1B+ Qe2 Rd7 Nd2 Bc2 Nc4 Bb1 Qb2 Rb7 Bb4 Rd1 Ba5 Rge1 Rf1 Re3 Re1 Rf3 Re2 Rf8 Re3 Re8 Rg3 Rd2 Bc6 Rdd8 Bd5 Bc7 Bb4 Nb6 Ba5 Na4 Bb4 Bbh7 Ba5 Bb6 Bb4 Qd6 Kh5 Rdb8 Ng4 Bb1 Ba5 Bd4 Be1 Bc3 Bed2 Qh6+
2rK1b1N/2Qb1R2/k7/1N1PRqR1/1p2Bpn1/1qn1pn2/2qBN1q1/N1n1r3 w - - 0 1 illegal: No possible last move, all moves rejected
k2B1rb1/nq4R1/8/p2PqNnB/RB2n1Q1/ppn1qr2/4R1N1/1q3BbK w - - 0 1 illegal: No proof kernel
1r1rN2N/3b1n2/k2p4/1b2p1Qq/1RB1rR2/N2p3n/P1b1B2b/2BrNK1q w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 b5 g4 h5 c4 b3 c5 b2 g5 h3 c6 h4 g6 h2 f5 h3 c7 e3 f6 b4 g7 e2 Nc3 b1R Qc2 d3 Ne4 b3 Nd2 b2 Ngf3 Nh6 g8B Nc6 Nc4 Nb4 Qa4 Rb8 Nh4 Nd5 Qa6 Nf7 Nd2 Nf4 Kf2 e1R Nc4 Re4 Bd2 Rd1 Qb5 b1B Na3 Bc2 Qg5 e5 Nf3 Bh6 Rg1 h1Q Rg4 h2 Rb1 Ba6 c8N Bb5 Be2 Nh3+ Kg3 Qb6 Ne1 Kd8 Rf4 Kc7 Rb4 Kb7 Bc1 Ka6 Nd6 Qd8 Ne8 d6 Rh4 Qc8 Rg4 Qf5 Rf4 Nd8 Bc4 Nf7 Qg8 Qh5 Qg5 Ng1 Kf2 Rd8 Kf1 Nh3+ Qg1 Rb8 Ng7 Rhd8 Ne8 Nh8 f7 Bg5 f8N Nf7 Rf2 Bf4 Ng6 Q1f3 Bb2 h1B Nh8 Bh2 Qg8 Qfg4 Qg7 Qgh4 Qg5 Bf3 Bc1 Bg4 Rf6 Bd7 Rf4 Q4g4 Rf2 Qf3 Rb1 Ng1 Rb4 Qh1 Rf4 Nh3+
4N3/1rn2q1b/B1p1rr1N/bPp5/RN1Rnnqk/3Q1p2/K6N/B4Rnr w - - 0 1 legal: proof: f4 b5 h4 e5 c4 exf4 a4 bxa4 h5 d6 c5 dxc5 h6 gxh6 Qb3 h5 Qd1 h4 d4 Ke7 Kd2 Kf6 Kc2 Kg5 e4 f5 b4 h5 Kb2 a3+ Ka2 h3 g4 h4 e5 h2 d5 h3 e6 Nf6 b5 Nh5 e7 Kh4 e8N f3 g5 f4 g6 f2 d6 f3 g7 Rh6 g8N Na6 d7 Re6 Nd6 Qe7 d8R Qf7 Nb7 Rb8 Bd2 Nf4 Nd6 Rb7 Kb3 a2 Be2 f1N Re8 Ng3 Nh6 Ne4 Bf1 Rf6+ Ka3 Bf5 Ba5 Bh7 Ne2 c6 Nc4 Bd6 Rd8 Bc7 Bc3 Ba5 Nc1 Nc7 Nd6 a6 Rg1 h1N Nd2 h2 Bh3 Nhf2 Bc8 h1R Nd3 N2h3 Rf1 Ng1 Be5 Ngh3 Ne8 Ng1 Rc1 a1R+ Kb2 Rf5 Rc4 Rf6 Rdd4 Ra3 Nb4 Re3 Ka2 Nh5 Nd3 Rb6 Qb1 Bc3 Rd7 a5 Rc1 a4 Rd8 a3 Qc2 Ba5 Ka1 a2 Nf1 Qg6 Ba6 Nf4 Nh2 Nd6 Ra4 Qg4 Rf1 Rb7 Nb4 Re2 Kb2 a1Q+ Kb3 Qd4 Qd3 Qc4+ Ka3 Re1 Ba1 Qf7 Kb2 Ree6 Ka2 Ne4 Rd6 Ng6 Rd4 Nf4
3R1NB1/K2brqpB/p1P2b1q/1R5r/NR1r1B1q/1n2Bp2/n5k1/Q4qr1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 b4 d5 h4 f5 c4 d3 c5 f3 e3 f4 c6 a3 h5 d2 h6 g3 h7 a2 Rh2 g2 Qa4 d1R Nh3 g1R Qa3 d4 Bc4 d3 Rb2 f2 Nc3+ Kf3 e4 f1Q e5 d2 e6 Be7 Ng5+ Kg2 Rab1 a1Q Na4 Bf6 e7 f3 e8B Ne7 Bg6 Nf5 Ne6 Na6 Nf8 Bd7 Rb3 Qb2 Qa1 Qa2 R3b2 Re1 Rb3 d1Q Be3 Re2 Bg8 Qc1 R3b2 Qe7 Ka5 Rd2 b5 Re8 b6 Qaf7 b7 Nd4 b8B Nb4 Bbf4 a6 Kb6 Na2 Rb4 Nb3 Ka7 Rd4 Rb5 Qd8 Bf5 Re7 Rb2+ Nd2 R2b4 Nb3 Bg3 Qc3 Bg5 Qc8 Ng6 Qff8 Bge6 Qce1 Be3 Qce8 Bgf4 Qg3 Be4 Qh4 Bf7 Be5 Be6 Qff6 B4f5 Rf8 h8R Qfg5 Bb1 Rf5 Rf8 Qgh5 Bg8 Qf7 Rd8 Bf6 Nf8 Qh6 Bc2 Rg5 Bch7 Rh5
4B1qn/q1N2ppR/1bK1n1qR/1r1Nq1p1/R1P3N1/2Bk4/Nr2rQ2/rb6 w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h6 g5 hxg5 f6 exf6 Na3 f5 Nb1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 b5 Kd5 Kf5 a4 d3 h4 f3 c4 d2 a5 f2 a6 b3 a7 b4 h5 b2 h6 b3 h7 Na6 e3 Rb8 a8R Rb5+ Kd4 d5 Rb8 Nc7 Ra5 Ne7 Rb6 Ng6 Nc3 b1Q Qe2 d1Q+ Bd2 b2 Nh3 Qa4 Bg2 f1Q Nf4 Qfe1 Na2 Ba3 Ra7 Re8 Qf2 Nh8 Bc3 Bf8 Ra8 Qa7 Bf3 Re6 Bd1 Bd6 Ba4 Qg8 Rh5 Bb4 Rh6 Ba5 e4+ Kg4 e5 Qg6 Rh3 Kf5 Rh1 Re7 e6 b1R Rh5 R5b2 Kc5 Ke4 Kc6 d4 Nd5 d3 Rh6 d2 Rb4 d1R Bb5 Ne8 Ra4 Nc7 Rb8 Qf5 Ra8 Re8 e7 Ne6 Rb8 Qg6 Ra8 Rf8 e8N Kd3 Nec7 Re8 Rb8 Qe5 Rb6 Qgf6 Ra6 Bb6 Rh5 Ng6 h8N Ra1 Rh4 Rdd2 Rh6 Re2 Rh7 Rd8 Ne3 Rd5 Ng4 Ngf4 Ng6 Qff5 Nh4 Ng6 Ng2 Nh8 N2e3 Qg6 Nf5 Qe3 Ne7 Rf5 Ned5 Bb7+ Kd6 Ba8 Be8 Qe5+ Kd7 Bb7 Ndf6 Be4 Nd5 Rb5 Kc6 Rf6 Qh2 Rff2 Qf4 Reb2 Qf6 Rfd2 Qf2 Re2 Qf3+ Kc2 Rh2 Nd4+ Kd7 Qge6+ Kd8 Ba5 Rh7 Bg6 Rd6 Bb6 Qf2 Q6f5 Rf6 Ne6+ Kd7 Qd3 Rf3 Qdf5 Rfh3 Qff6 R3h5 Bf5 Kc6 Qg6 Bd4 Kd2 R5h6 Bb1 Bc3+ Kd3
qr1Bb2R/RP1n4/n1pnBpk1/Q1Bb1bb1/n2KB3/1R1p4/r5N1/5N1q w - - 0 1 illegal: No proof kernel
1nbBR1Bb/1prq1Q2/kn2B3/b3b3/1R6/1R3rrR/2pp1PNK/N1q1r3 w - - 0 1 illegal: No proof kernel
5R2/p2r1b1n/bq1B4/1rbPN2B/1rB1krnR/Bq5p/1Np1KRb1/Q7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 d4 Ke6 b4 Kd5 g5 f5 g6 h5 b5 c5 b6 h3 b7 h4 e3 c3 g7 c4 Na3 h2 Nh3 f3 Nc2 a3 Qd3 a2 Qd2 f4 Qd1 f2+ Ke2 Ke4 d5 Be6 Ng1 h3 Qd2 f3+ Kd1 Nf6 g8R Bf7 Rb1 a1Q Rb2 Qa3 Rg6 Nbd7 b8B Ne5 Ne1 Bc5 Bd6 Rb8 Nd3 Rb4 Rh6 Neg4 Rh4 Rh7 Qe1 Qb3+ Rc2 Rg7 Ba3 Qb6 Nb2 Nh7 Be2 Qa2 Rd2 f1R Rc2 f2 Nf3 Rb5 Ne5 Qb3 Rg1 h1B Rg2 Kf5 e4+ Kf4 Rh2 Bg2 Bd3 Rb4 Ke2 Rb5 Rd2 c2 Qa1 c3 Bc4 c1R Rd3 c2 Rf3+ Kg5 Rf4 Rb1 Rf3 Bg8 Rf8 Rd7 Nc6 Kg6 e5 Bf7 e6 Kf5 e7 Ke4 e8B Rg1 Kd2 f1B Ne5 Be2 Nd1 Rf1 Nb2 Be6 Bh5 Rf4 Rh1 Bf7 Rf1 Rb4 Rf2 Qa4 Ba2 Ba6 Bb3 Rb5 Bc4 Qb3 Ke2 Qa2 Nd1 R1b4 Nb2 Qb3
qk6/1bRn2rb/qn4r1/3p4/1b6/PN1QRppp/1RB1KN2/BR1rB1q1 w - - 0 1 illegal: No possible last move, all moves rejected
2n1kB2/5q1B/3Rn2p/rrP5/5qbK/RQp1pq2/RNrbp3/n1BR3N w - - 0 1 illegal: No proof kernel
QRRn3K/3nq3/3k2p1/2rp1p2/1qBp2PR/1nr1N1b1/bRb4q/3NNB2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 f5 cxd4 f6 h4 Be3 exf6 Bf4 f5 Bg3 hxg3 Qd2 f4 Qd3 Ra4 Qd1 Ra8 Kd2 Ke7 Kd3 f5 c4 b5 a4 f3 e4 d6 h4 b3 h5 b2 c5 b4 c6 f2 h6 b3 h7 g2 c7 Bb7 c8R Nf6 a5 Ne8 a6 Ra7 e5 Qd7 e6 Bd5 Qf3 Nc6 Ra2 Rc7 a7 Nd8 a8B Nf6 Rh4 Rc5 Nc3 b1Q+ Rc2 b2 Nd1 Bb3 Bd5 Ba2 Bc4 g6 Qa8 Rg8 Nf3 g1Q h8R Qh2 Ne1 d5 Ke2 Qdd6 Kf3 Nd7 Re2 Qc7 Rd2 Kd6 e7 Bg7 Rc2 Be5 e8N+ Ke6 Rb8 Bg3 Nd6 Qb7 Rc8 Qb4 Rb8 Qc1 Rd2 b1B Rb2 Bc2 Rc8 Nf7 Rb8 Rgc8 Rg8 R8c7 Rgc8 Qcd2 Nb5 Qd3+ Ne3 Qda3 Nc3 Nd8 Ncd1 Kd6 Bfe2 f1N Bed3 Qhd2 Be2 Bf2 Kf4 Bg3+ Kg5 Qa7 Bed3 Qh2 Kh6 Nd2 Kg7 Nb3 Bf1 R7c6 Ba6 Rc3 Kh8 R6c5 Bfc4 Ne5 Bf1 Qe7 Bac4 Nd7
2b2Kq1/2qNnB2/Rp1n3b/1r2p3/rnR1p2N/8/1PNQpN1R/rkBb4 w - - 0 1 illegal: No possible last move
n2Bq3/3k1B1n/pP3B2/2b1Q3/bp1r3b/R2p1n1r/K2RNpN1/4NBqq w - - 0 1 illegal: No proof kernel
4qR2/2rb1p1K/3p1Q1P/n2bB1pp/2q1RrNn/3B2R1/2R1N2r/b2k1N1q w - - 0 1 illegal: No proof kernel
1bQq1N1R/1bp1B3/p3N3/5pPr/1n2Nn1b/1RR4p/Bq2n2r/K4Rqk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 e4 Ke6 d4 f5 Kd2 h5 Kc3 f3 b4 a6 Kb2 c3+ Ka2 c2 b5 h3 e5 Kd5 e6 Ke4 d5 a3 b6 h2 e7 f2 e8R+ Be7 d6 h4 b7 Nc6 b8N Nf6 d7 Rh5 Nh3 Bb7 Bh6 c1Q Bg5 Nd5 Bc4 f1N Rh8 Ng3 Nf4 Ne2 Nc3+ Kf3 Ne6 Kg2 Ne4 Ndf4 Rb1 Nb4+ Ka1 a2 Rf1 h1Q Qa4 Qc2 Rb3 Qg1 Qb5 Bc5 Be7 Kh1 g5 Bf2 Qe5 h3 Qg7 Bh4 Qg8 Ra7 Nf8 Ra8 Nc6 Rb8 Nd4 Qd2 Nde6 Qd4+ Rc3 Qe5 Kb2 a1B+ Kb1 Qd4 Ba2 Qf6 Rb3 Bd4 Rc3 Ba7 Ka1 Qc8 d8R Qg7 Rdd1 Qd8 Rb1 Qf6 Rb3 Qfd4 Kb2 Qd2+ Ka3 Qb2+ Ka4 Qc2 Qg7 Bc6+ Ka3 Nd4 Rb2 Nbd5 Bc5 Qg2 Rbb1 Rb2 Qd7 Nb4 Qc8 Bb8 Be7 Rf2 Rbb3 Bb7 Rc2 Re2 Kb2 Rd2 Ka1 Qe2 Nf6 Qe5 Rc6 Rh2 Rc4 Qe2 Rcc3 Qd2 Ne4 Nde2 Ng7 Qc2 Nge6 Qb2+
1r1R4/QKpp2nn/2pqn2P/q2R1B1B/2p1BN2/1b1R1r2/2r4B/N3k1bq w - - 0 1 illegal: No proof kernel
3K1r1k/Rp2n1r1/2R4B/NPpbr2q/bpB2nR1/N2q4/1p3RQ1/q3b1N1 w - - 0 1 illegal: No proof kernel
NRN1Q3/pK1B1P1n/pp3b1r/2q1nBrR/1kn5/2b3q1/4p1NN/1bB3r1 w - - 0 1 illegal: No proof kernel
1B1bN1r1/1B1N3k/N1n1p3/R1Pq4/1rpnbK2/1nr3r1/QR1p2rp/2B2B2 w - - 0 1 illegal: No proof kernel
2b2R2/1P1r2qN/r1k2pp1/B6p/3n1Kpb/4QnB1/rrB2NrB/b3RR2 w - - 0 1 illegal: No proof kernel
1b2rN2/3R2n1/1r1B1NB1/3B1NN1/R1Pqp2K/1krp2r1/1n1b1p1p/1n1b2Q1 w - - 0 1 illegal: No proof kernel
B1bB2Nr/KN4qp/2RN1nk1/B1p1BRr1/n4pn1/2Qbp3/1r3Pr1/6b1 w - - 0 1 legal: proof: e4 d5 c4 dxc4 a4 b5 h4 bxa4 h5 Bg4 h6 Be2 Rh4 gxh6 Rh1 h5 Qc2 h4 Qd1 Nf6 Qb3 Nxe4 Qc2 Nf6 Qd1 Ng8 b4 c5 g4 f5 d4 Kf7 Kd2 a5 Ke3 e5 d5 a3 d6 h3 b5 e4 g5 a4 b6 h2 d7 a2 b7 a3 Qb3 Qf6 d8B Nh6 Bb6 Nd7 b8B Bd6 g6+ Kg7 B8c7 c3 Bd2 c2 Nh3 c1N Ng5 Rab8 Bg2 Nd3 Nc3 Nb2 Nf7 Bc4 Rae1 a1R Nd8 a2 Nb5 Na4 Bda5 Bd3 Qc3 Qe5 Rhg1 h1B Bf3 Qf6 Rg5 Bh2 Reg1 Rc1 Be5 a1R R1g3 Rg1 Bbc7 Kg8 g7 Rb7 Kf4 e3 Bcb6 Rb8 Ba8 Bb7 Rh5 Bc8 Kf3 f4 Rf5 Bc2 Rg6 Rg5 Ke2 Qf8 Rc6 Ng4 Nd6 Rg1 Bc7 Rb2 N8b7 Rg2 Bd8 Bd1+ Kd3 Bc2+ Kc4 Bg1 Bb4 Qf6 Kb5 Qe7 Ka6 Bd3+ Ka7 Qf6 Ne8 Kf7 g8N Kg6 Ned6 Qg7 Bba5 Ndf6
NR1nqqk1/QBKn3p/8/2B2p2/qpN3rr/Nb1q4/pRNb1P2/2R4q w - - 0 1 legal: proof: e4 b5 b4 c5 h4 cxb4 a4 bxa4 e5 g5 e6 gxh4 Nc3 dxe6 Nb1 e5 Bb2 e4 Ba3 Nh6 Bc1 Ng8 Ke2 f5 Ke3 Kf7 Kf4 a5 Ke5 e6 c4 e3 d4 e2 g4 e1Q+ Be3 a3 d5 a2 c5 a4 d6 a3 c6 h3 c7 h2 g5 Bh6 d7 Ne7 Kd6 e5 g6+ Kg8 g7 e4 Ne2 Qf8 d8N Ra6+ Nc6 Be6 c8N Nd7 Kc7 Qd2 Bc5 e3 Bg2 Qd3 Na5 Nc6 Nd4 e2 Nc4 e1Q Qa4 Bd2 Nc2 Nd8 N8b6 Qee4 Rc1 h1Q Na8 Rd6 N2e3 Rd4 Nc2 Qee3 Qa6 Rh4 Bb7 Bd5 Qa7 Qee8 Nc3 Be6 Rab1 a1Q Nb5 a2 Nba3 Qac3 Ba6 Qb3 Rb2 Qa4 Bc8 Kf7 g8R Bd5 Rgg1 Rg8 Bb7 Rg7 Rg6 Kg8 Rb6 Be6 Bc6 Rgg4 Rb8 Bf7 Bb7 Be6 Ne5 Bb3 Nec4 Rg5 Bc8 Rg2 Bb7 Rgg4
Q3b2r/2KPRNN1/2p1NBp1/1r1nnq1p/3N2p1/5q2/1qR1B2k/1q1B2bq w - - 0 1 illegal: No proof kernel
QB4r1/1p3B2/1N1rPp1r/1KrqNR2/2N1np1p/3bn1Nk/1R6/b1Bqr3 w - - 0 1 illegal: No possible last move, all moves rejected
K4B2/p1p1p3/1Rr4b/3RBrBr/bnq1Npq1/N3Q2r/B3NPn1/5r1k w - - 0 1 illegal: Other
2nNBq2/5BNb/RRr5/b2NBr2/2p1qn1n/1p3pK1/B2P3p/1Q1q2nk w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 g4 Kd6 a4 Ke5 e4 h5 a5 c5 g5 f5 g6 b5 g7 f3 a6 Kf4 a7 b3 e5 h3 e6 h4 e7 b2 e8B b4 Be2 b3 Ra2 c3 Bc6 c2 Qe1 h2 Bd1 h3 Be8 c4 Qe2 Nh6 g8N Nd7 Qe7 Nb6 Qe2 Bb4 Bc6 Ba5 Bb5 Qf8 Na3 b1N Qe1 Nc3 Nb1 Ncd5 Bb2 c1N Ne7 Ne2 Ra3 Ke4 Bc3 f4 Be5 Nf5 Be8 Nh4 Nc6 Bf5 Nd8 Rc8 a8B Rc6 Bb7 Bh7 Nc3+ Kf5 Ra4 Kg4 Bc2 Nc8 Bb1 Rg8 Qc1 Rg5 Ba2 Rh5 Qb1 Rf5 Kf1 f2 Nf3 Kg3 Nd4 Ng1 N4e6 Ngf3 Ke2 Kg2 Rf1 h1Q Ng7 h2 Bf7 Re6 Bc6 Rd6 Bce8 Rc6 Re1 f1Q+ Kd1 Nb4 Nd5 Nd3 Rb4 Ng1 Rb6 f3 Ra6 Qf2 Re4 Q2c5 Re3 Nf4 Ke1 Qd4 Re2+ Kh3 Rg2 Qe4+ Kf2 Nge2 Rg5 Qd1 Rg6 Ng1 Rh6 Rc5 Rhb6 Rc6 Bc7 Qe6 Be5 Qg6 Ke3 Kg2 Ke4 Qg4 Ke3 Kh1 Kf2 Qh5 Kg3 Qg6+ Kf2 Qe6 Kg3 Qee7 Ba1 Qe3 Be5 Qe4
2rR1KRQ/2q1n3/5p1B/3p1B1p/N1bp1rqq/1nPR1r2/1b1N1k2/2B3rB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 e4 h5 g4 a5 b4 a3 b5 a2 g5 a4 b6 f3 g6 f6 g7 h3 b7 a3 Ne2 h2 Bg2 f2 Qe1 f1R Nd2 Nc6 b8B+ Qc7 Nc3 Kf4 Kd5 Ba6 e5 Na5 e6 Nb3 e7 d6 Ke6 d5 Kf7 Bc4 Qe4+ Kg3 Na4 Rf4 Qh7 Kf2 Rd1 h1Q c3 Qh4 Rb1 a1R Bh1 a2 Rb2 Rb1 Qh6 a1Q Qh7 Qd8 e8B Qc7+ Bd7 Ne7 Bf5 Rg8 Qh8 Rf3 Ra2 Rb2 Ke8 Qb1 Ra1 Qbe4 Rb1 Qeg4 Kf7 Qcg3 Bf4 Rc8 Bh6 Qc7 Ra1 Rc2 Rb1 Nc5 Rb6 Nb3 Rd6 Rb2 Rd8 Rf4 Nf1 Rd2 Ke8 Rd3 Kf7 Re3 Rd3 Ref3 Nd2 Ng6+ Bd7 Be7 Be6 Ba3+ Bd7 Ne7 Bf5 Re8 g8R Bb2 Rg7 Rg8 Rg6 Rg7+ Kf8 Rh7 Rg8 Rg7 Qh7 Qgh3 Qh8 Rg1 Rg6 Q4g4 Rg8 Qhh4
1R5q/1Rb4q/nNrp4/P6p/2BRrR1q/2n2N1k/1Kpp1nb1/q3BQ1N w - - 0 1 illegal: No proof kernel
b2q1Bqb/2R4Q/1kpP2pR/1p1n3b/p4b2/2r4R/nB1BB3/KqNN1r2 w - - 0 1 illegal: No proof kernel
RBNQ4/B1n1qN2/1P4q1/2p1pp2/3Nkn1n/4Bp1b/r3rRnb/2bB3K w - - 0 1 illegal: No proof kernel
BNr5/1qQ1Brp1/3qbn1B/2N1pRR1/1p4p1/qqPN2b1/nN1K2k1/2r5 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 Ke6 h4 Kd5 h5 b5 c3 e5 a5 b3 h6 e3 a6 Ke4 f5 d5 h7 d3 f6 b2 f7 e2 a7 d4 Rh5 Be7 f8B Qa5 Na3 b1Q Nf3 Nf6 Bh6 Nc6 Bg2 Nb4 Rg5 Na2 Kd2 e1R Nc4 Qa3 Nb2 Be6 Qb3 b4 Qc4 Rc8 a8N Rc1 Nb6 Bd8 Be7 Rf8 h8N Rf7 Ne1+ Kf4 Qb5 Kg3 Nd7 Bb6 Ba8 Ba7 Nf3 Kg2 Qb7 Bb6 Nb8 Bd8 Nc4 Qbb3 Nb2 Qd5 Qd7 Qb7 Ng6 Bb6 Qc7 Bc5 Nd1 Bb6 Nf8 Ba7 Ke1 d2+ Ke2 Bc5 Nfd7 Bb6 Nc5 d3+ Ke3 Ba7 Nb2 d1Q Rb1 d2 Kd3 Qdb3 Ne1+ Kh3 Ke3 d1Q Ned3 Kg2 Ra1 Q3d5 Rb1 Q1b3 Kd2 Qd6 Ra1 Rg1 Rf1 Rh1 Nca4 Bf2 Nc5 Bg3 Rff5 Rc1
4n2k/1RKR1qp1/2n2rp1/Bpb1q3/1R1Np1B1/7N/1QbnN1P1/r2b1Rn1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 b5 fxe4 b6 axb6 Qe2 b5 Qg4 b4 Qg6+ hxg6 Kd2 Kf7 h4 d5 a4 e5 c4 b5 f4 b3 c5 b2 a5 e3+ Kd3 e2 c6 e1Q c7 Ba6 c8R Qf2 h5 Qf6 f5 Ra7 h6 Nc6 h7 Q2h4 Nc3 b1N Nce2 Nh6 Ra4 Qh2 Nh3 Nd2 Rb4 Bb7 a6 Bc5 Rd8 Rf8 h8R Qe7 f6 Nf5 Rg8 Nd6 Rd7 Raa8 a7 e4+ Kc2 d3+ Kc3 Bc8 Rb7 Be6 Rh8 Qg3 Rh5 Kg8 Rg1 Rab8 a8Q Qf7 Qa3 Ra8 Qb2 Ra1 Re5 Bg4 Ree7 Kh8 Red7 Qh2 Ng3 Bd1 Be2 Bb3 Bg4 Bc2 Ne2 Qf4 Rf1 Qe5+ Nd4 N2c4 Be3 d2 Bf2 d1B Be1 Qfe7 f7 Nd2 Qa3 Rg8 f8N Qf7 Ne6 Re8 Neg5 Re6 Nf3 Rf6 Qb3 Qh5 Ne2 d4+ Kb2 d3 Kc3 Qe5+ Nfd4 Nf3 Qb1 d2 Qb2 Ng1 Bh4 Re6 Bd8 Rf6 Ba5 Ba4 Ng3 Bdc2 Ne2 d1N+ Kd2 Nc3 Ke3 Nb1 Rb6 Qee8 Rbb7 Nf5+ Kf4 Nd2 Qb3 Bd1 Qb2 Bac2 Ne6 Ncd4 Ke5 Nd6 Kd5 N4f3 Kc6 Ne5+ Kc7 Nc6 N6d4 Qee7 Nc1 Qe5 Nce2 Ne8+
1k2KrR1/qB1R1p1b/n1Bqn3/RQn5/PBp1p3/r3pN2/1nN5/bb2B3 w - - 0 1 illegal: No possible last move
4q3/nNq2p2/1B2rq2/b2B1P1Q/kr2rN1p/p2KBb2/1p1n4/NqB2R1R w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 e5 gxh4 b5 d6 Qe2 dxe5 Qc4 e4 Qb4 cxb4 Ke2 Kd7 f4 e5 d4 h5 g4 a5 c4 e3 g5 h3 c5 a3 d5 a2 d6 b3 b6 Kc6 g6 Kb5 b7 h2 d7 b2 g7 e4 f5 h4 c6 a4 c7 a3 Nh3 Ra6 Nf4 Re6 Nd5 Nc6 b8B Qf6 d8B Na7 Bg2 Bb4 Nb6 Ba5 Re1 h1Q Rd1 Qh2 Nd2 Bb7 c8N Qc7 Rb1 a1Q Rf1 Qa2 Nd5 Ka4 Nf4 Rh6 Ra1 Rb6 Bh1 Rb4 Nd6 Ba8 Nb3 Bd5 Kd1 e2+ Kd2 e1R Nb7 e3+ Kd3 e2 Rb1 Bf3 Na1 Qce7 Bd6 Qc7 Bc5 Rg6 B5e3 Rg4 Nh5 Rge4 Bg2 Nh6 g8Q Ng4 Bh1 Nh2 Qh7 Re6 Bg2 Ree4 Rh1 Nf1 Nf4 Nd2 Qg6 Rf1 Qh5 e1Q Be7 Rf2 B7c5 Re2 Bb6 Qg1 Bf1 Qg8 Bg2 Qe8 Rf1 Re6 Rh1 Bg4 Bd5 Bf3 Bf2 R2e5 Bfe3 Ree4 Bbd4 Nb5 Bb6 Nf1 Bcd2 Na7 Re1 Qed8 Bc1 Qe8 Rd1 Nd2 Rdf1 Qb1+
3r4/K3pbrk/qr1B3P/2Q2pn1/n2bn3/1B2pn1N/3R1q1p/1NR2NRR w - - 0 1 illegal: No proof kernel
1bn2BQr/3bp1Np/3nRq1r/n4p1b/B3p2P/5B2/b1Nk2K1/R2N1q1N w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Kf2 Kd7 h4 Kd6 a4 Kd5 d4 f5 g4 b5 a5 c5 g5 c2 g6 f3 g7 b4 a6 c4 a7 b3 Bd2 c1Q Bf4 b2 Nh3 c3 Bg2 Kc4 d5 c2 d6 Nd7 Ra6 Nb6 d7 Nf6 g8N Bh6 Na3+ Kc3 Qg1 Ne8 Nf6 b1B Ng4 Nd6 Ne3 Qf8 d8N Ba2 Ne6 Bd7 Ng7 Qf6 Nd1+ Kd3 Kg3 f2 Bf3 Nbc8 Kg2 Qb1 Rc6 c1N Nc2 Nb3 Ra6 Rb8 a8B Rb6 Bc6 Na5 Ba4 Qba1 Bc1 Bf4 Bd2 Bh2 Bh6 f1B+ Kf2 Be2 Kg2 Rb5 Rc6 Bf4 Nhf2+ Kd2 Ra6 Ne8 Re6 Ned6 Qh2 Rb3 Qg3 Rb6 Rf1 Qc1 Nh1 Ra6 Nc3 Qe1 Nd1 Rb6 Rg1 Qf1+ Kh2 Qa1 Nh5 Nb3 Nde3 Nf7 Rc6 Bb5 Bg4 Qd3 Kg2 Na5 Bf8 Bb8 Rg6 Be8 Bf3 Bbd7 Rc1 Rf6 Nd1 Nfd6 Qg4 Qac3 Ra1 Qb5 Rh6 Qd4 Qg8 Qf1+ Kg3 Bef7 Ng7 Bh5 Kh2 Rf7 Re6 Rf6 Kg3 Rh6 Kh2 Qf6 Kg3 Qa6 Kg2 Qf1+
1q5k/3PRp2/brbRBp2/3Q2p1/N2qpB1N/1Nrr1b1n/6N1/1Bn1b1K1 w - - 0 1 illegal: No proof kernel
2B5/1B1pR1K1/nrNQ4/pRbB2B1/n1q1p1b1/3bNr1p/1qNPq3/1k2b3 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 cxb4 a4 bxa4 e5 g5 e6 gxh4 Nc3 fxe6 Nb1 e5 Rh3 e4 Rh2 Nf6 Rh1 Ng8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 c4 a5 f4 e5 g4 h5 Kg6 e3 c5 b3 g5 b2 f5 e4 f6 a3 f7 a2 c6 e2 c7 Kd3 Qa4 h3 Qb5+ Kc2 Qa6 e1B Ne2 h2 Nec3 h4 Nd5 Nf6 Qd6 Ba6 c8B Be2 Rg1 Be7 f8N h1Q Kg7 h3 g6 Na6 Ne6 Qc7 Nd8 Bg4 Nc6 Rh6 Bc4 Qg2 Na3+ Kd1 Bd3 b1B Nc2 Qe2 Bb2 Rb8 Bd4 Kc1 Be3 Rb6 Bg5 Rb3 Bb5 Rf3 Nde3 Nd5 Bc4 Nc3 Bd5 Na4 Rf1 Rg3 Rf6 Rf3 Re6 Bd8 Re7 Kb2 Nb8 Qcc4 Bdb7 Bb6 Nc6 Bc5 N2d4 Bd3 Ndc2 Nc3 Rc1 a1Q Rb1+ Ka2 Rb6 Qb2 Rb5 Rf7+ Kg8 Kb1 g7 Rhf6 Kh8 Rf8+ g8B Na4 Kh7 Rf3 Bd5 R8f6 Kg7 Bg3 Na7 Qd4 Qe5 Rb6 Nc6 Qc4 Qf6 Be1 Qe5 Qbb4 Qd6 Qb2+
1q2KBBn/Nk1p1P1b/1p1R3N/p4q2/2nRbn2/p1n3r1/RR1bN3/r5Q1 w - - 0 1 illegal: No proof kernel
b1R1K2B/1Bp1Nn1q/p1Nq1RP1/3n2b1/3rn3/1kBQBp2/1rN4p/r1n5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 d4 a3 b4 f3 g4 a6 b5 h3 d5+ Kd6 g5 Kc5 Ke5 Kb4 e4 f5 d6 h4 b6 h2 g6 f4 d7 f2 Ke6 h3 Kf7 c3 b7 c2 e5 a2 e6 Rh4 e7 Rh5 e8N Rh4 Be3 c1N Ne2 Bg7 Na3 Nc6 b8B Nf6 Bg2 f1N Nd6 Nd5 Nf5 Nd2 Nc2+ Kb3 Bba7 Bb7 Bad4 Bh6 Bc3 Bg5 Ne7 Ne4 Qd3 Rb8 Rd1 h1Q Ned4+ Ka4 Rb1 a1R Rb6 Ba8 Bf3 Qh2 Rh1 Qh8 d8B Qh7+ Ke8 Ne5 Rf6 Rb2 Ndc6 Nf7 Rf1 Qd2 Bh1 h2 Rf3 Qg7 Rh3 Rg4 Rh8 Qh7 Nf5 Rb8 Qf1 Ned6+ Kf8 Rb7 N6d4 Rb2 Re6 Ne7 Bb7 f3 Nc6 Qd4 Qd3 Nd5 Bf6 Nb4 Nfe7 Kb3 Bg7 Qc5 Rf6 Rd4 Rg8 Ne4 Bh8 Ra3 Ke8 Nd5 Kd7 Ra1 Rc8 Qb4 Ke8 Qd6
3rk1b1/rp2q2n/3QRpP1/5NB1/3BN2q/1rKB2pN/p3B1qn/br5R w - - 0 1 illegal: No proof kernel
1qrqNkb1/R1bnnNn1/1Q2p1p1/1NN2p2/B1q2p1p/1R1K1PB1/8/1r1B4 w - - 0 1 illegal: No proof kernel
N1q1q1kB/3r1q2/p1N1BrpB/2Q3p1/5b2/1pNR3p/bR1rnPBK/3n4 w - - 0 1 illegal: No proof kernel
N1K1R2r/1N1B1n1p/1p4pP/2BQ1prq/5Rb1/2q2B2/3nnNqp/4bkN1 w - - 0 1 illegal: No proof kernel
2r3n1/3bP3/B1R2Bp1/1q1n3n/qB2b2r/pN1p1pb1/3p1R2/NQB2KNk w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 b4 Ke7 e4 Kd6 h4 Ke5 c4 d5 b5 f5 b6 a5 c5 a3 h5 g6 c6 a4 b7 g3 h6 a2 h7 g2 c7 d3 Na3 f3 Nb1 f4 Na3 f2+ Kd2 f3 Nc4+ Kf4 e5 Kg3 e6 d4 Ne5 Nc6 b8B Bd7 c8N Nb4 Nb6 Bd6 e7 Qe8 Nec4 Nd5 Na5 a3 Bc7 Rc8 Nbc4 Be5 Be2 f1B Ke1 Bd6 Rb1 a1Q Ne3 Qb2 Nc2 Qb5 Nb3 Bf4 Rb2 Bd6 Nh3 g1N Nca1 Kg2 Ba5 Be5 Bb4 Bg3+ Nf2 Nh3 Qc2 Be6 Qb1 Bd7 Rh2+ Kg1 Rc2 Nhf4 Rc6 Bfh3 Bf1 Bhf5 Be2 Be4 Bf1 Nh6 Be2 Nh5 Bf1 Rf8 h8B Rf4 Bf6 Ng8 Rh4 Bh2 Nh3+ Kh1 Ng1 d2+ Kf2 Qa4 Ba6 d3 Kf1 Rg4 Rh3 Rh4 Rg3 Qb5 Rg2 Bg3 Rf2 Qd8 Bh8 Qda5 Bf6 Qaa4
1q1q3B/1Rp1p2n/q2RN1k1/3NK1b1/b2R3B/1B2n3/PppB2rp/2r1r1Q1 w - - 0 1 illegal: No proof kernel
nN1RB3/Q6R/4pr1b/Pbp3R1/1pb4p/kr4q1/2KRnnpN/1b2N1B1 w - - 0 1 illegal: No proof kernel
R2N2N1/2R3pb/PB6/nBN2rkp/rpK3p1/1n1Qbpqb/5n1n/1N4B1 w - - 0 1 illegal: No proof kernel
rBR5/rnPnb1NQ/B1r1b2p/p1B3p1/Rp2q1N1/r6B/k2p1K2/3R1b2 w - - 0 1 illegal: No proof kernel
1Nr1b2B/1p2bN2/pr1q1n1N/kBppB1P1/1b1brN1K/6p1/1n1R4/2R4Q w - - 0 1 illegal: No proof kernel
1B3N1k/1bqpq3/1bRr1R2/4p1np/1KnQ1BP1/1q1RN3/4Rpp1/3B2qr w - - 0 1 illegal: No proof kernel
R3q2b/2N1rppp/2K2bR1/p1PR3p/Rp2nQ2/5qBb/BN4nr/2B2k2 w - - 0 1 illegal: Other
4B2N/2p3n1/1pqk1p1b/2N1Rbr1/QpBK4/1p2bNp1/1BBpP3/Rr5n w - - 0 1 illegal: No proof kernel
nR1qBNBQ/Q4N1b/2p5/2bNq2r/2r2bqk/2PR3q/2NK4/r4b2 w - - 0 1 legal: proof: b4 b5 e4 a5 a4 g5 f4 d6 h4 gxh4 e5 dxe5 bxa5 exf4 a6 f3 a5 b4 Bb2 Nd7 Bc3 Nb6 Bf6 Nxf6 axb6 Ng8 d4 f5 g4 Kf7 b7 Kf6 b8Q Kg5 d5 h5 d6 e5 a7 h3 c3 h2 d7 f2+ Kd2 e4 Ne2 f4 Na3 e3+ Kc2 f3 Ng3 c6 Bh3 f1Q Rg1 h1R Rc1 e2 Qc7 e1B Rg2 h4 Qd3 f2 Nb5 Qg1 Qd4 f1B Ne2 Nf6 Rg3 Bd2 Na3 Rh5 Rd3 Nd5 Rb1 Bc5 Nf4 Nb6 Ng6 Bf4 Nf8 b3+ Kd1 b2 Nc2 Rb8 Qh8 Na8 Ke1 Rb4 Qa5 Nb6 a8N Rc4 Nc7 Na8 Nd5 Qd4 Kd1 Qe5 Qa7 Ba6 Bg2 h3 Bf3 Kh4 g5 h2 g6 Rg1 g7 h1Q g8B Qh3 Be4 Bb5 Bg6 Rh1 Be8 Ba6 Re3 Bd3+ Kd2 Bh7 Ra1 b1Q Ra3 Bd4 Rb3 Qg1 Rb4 Qgg4 Rb8 Qc8 d8N Bc5 Nf7 Ra1 Qb6 Qd8 Qa5 Re4 Qa4 Bf1 Qa7 Bh2 Rg3 Rc4 Rd3 Bf4+
1n1BRb2/RppQ3q/2p4k/3nNqq1/4q1B1/1b4Pb/BBN4p/6QK w - - 0 1 legal: proof: b4 e5 a4 a5 c4 axb4 f4 exf4 h4 h5 c5 g5 c6 gxh4 Bb2 dxc6 Bxh8 Bd6 Bb2 Ra5 Bc1 Rc5 Ba3 Rc1 Bxc1 Bf8 Kf2 f5 e4 Kf7 d4 Kg6 a5 b3 a6 h3 a7 b2 a8Q h2 g3 h4 Kg2 Kh7 d5 Bg7 d6 Qf6 d7 Ne7 d8B Qg5 e5 Nd5 e6 Bf8 e7 Be6 e8B Kh6 Na3 b1Q Qa7 Qe4+ Nf3 Bg8 Qg1 h3+ Kf2 Bf7 Ne5 f3 Nc2 f4 Bc4 Be6 Kf1 f2 Bd7 Bg8 Bb2 Qh7 Ke2 f1B+ Kf2 f3 Ra7 Bg2 Ba2 Bf7 Ke1 f2+ Ke2 Bf1+ Kf3 Bg8 Bg4 Be6 Qg2 Bf7 Rg1 h1Q Qd4 h2 Qd2 Bc4 Re1 Bb3 Re3 Qe1 Qg1 Be6 Kg2 f1Q+ Kh1 Qff5 Qd3 Ne7 Qd6 Nd5 Qd7 Qb4 Re2 Qbe4+ Bf3 Qee3 Nd3 Qff4 Re1 Bh3 Bg4 Qed4 Re8 Qff5 Ne5 Qde4+
2Q2q1Q/2pB1Npn/1n2Q1Pp/2RKQ1rq/6B1/k1Nn1p1R/1p6/3r1r2 w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 e5 a4 exf4 Kf2 a5 Ke1 axb4 Ba3 bxa3 Qb3 f5 Kd1 f3 Kc1 f4 Qd1 f2 g3 f3 h3 Bg4 hxg4 Bb4 Nc3 Bd6 Nb1 Bf4 gxf4 Qh4 Rh3 Qg5 Rh1 Qd8 Kc2 Kd7 Kc3 Kc6 e4 Kc5 d4+ Kc6 a5 Kb5 a6 a2 d5 h6 Kd4 Kb4 a7 b5 e5 c3 e6 c2 g5 c1R g6 Rc5 d6 Na6 e7 Nf6 e8Q Rc8 a8B Nb8 f5 Rc3 d7 Rf8 Qe5 Rc1 Bc6 Nh7 Nc3 Ka3 f6 b4 f7 b3 Kd5 b2 Bh3 f1Q Bg4 Qh3 Qde2 Rf1 Rc1 Qh5 Nh3 a1N Ng5 Nc2 Rh3 Ne1 Qc4 Qf6 d8Q Nd3 Bcd7 Qf4 Qde8 Rd8 Q8e6 Rfe8 f8Q+ Re7 Qfg8 Qf8 Qh8 Rf7 Qcd4 Rf5 Nf7 Rg5 Qa7+ Na6 Qb8 Nac5 Qc8 Na4 Ne4 Rg1 Rc5 Rf1 Nc3 Nb6+ Ke4 Ne1 Be8 Rd1 Bd7 Nd3 Kd4 Na4 Kd5 Nb6+
K2q1nNq/3n1N2/1n2q3/n1nRB1n1/1P1r1N2/1B2k1b1/Q2nrb1Q/2NR4 w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 h3 fxg3 Qd3 g5 Qd2 g4 Qd1 g2 Nc3 g3 Nb1 Bb7 Rh2 Bf3 Rh1 Bg4 hxg4 Qe7 Rh2 Qg5 Rh1 Qd8 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf3 Ke5 c4 f5 b4 a5 e4 h5 g5 a3 c5 f4 c6 a2 g6 a4 g7 h4 Bb5 h3 c7 d3 c8N Kd4 e5 a3 e6 h2 e7 Rh4 e8N d2 Nb6 Ne7 g8Q Nd7 Bc6 Ng6 Qf7 Bd6 Qf5 Ngf8 Qa4 d1N Qf7 Ne3 Qb5 Nf5 Nh3 g1B Ng5 g2 Nh3 Ne7 Qh7 Nc8 Ke2 f3+ Kd2 f2 Ng7 Bg3 Ne8 f1N+ Kc2 B1f2 Kb3 g1N Qe2 Re4 Ba4 Nf3 Nc4 Rh4 Qec2 Ng5 Nc3 Rf4 Rg1 h1Q Bb2 Rh4 Ne5 Ke3 Qh5 d4 Kc4 Qe4 Kb5 d3 Rb1 a1N Nf6 a2 Ng8 d2 Ne2 d1N Nf7 Nb3 Qh7 Qf5+ Kc6 a1Q Kb7 Qe6 Qh5 Rc4 Nhf4 Nc3 Qh2 Nce4 Re1 Ra6 Bc3 Rac6 Ka8 Na5 Bb3 Rd6 Qa2 Nec5 Rh1 Rd2 Nc1+ Re2 Bh8 Qg7 Rg1 Qh7 Be5 Qhh6 Rd1 Qh8 Rd5 Rd4 Rh1 Nd2 Rd1 Ncb6+
nr3r2/BN1Rq1qK/qn6/1B4r1/1NR1B3/3bk1Pb/B1Q4q/2qq1Qr1 w - - 0 1 illegal: No possible last move, all moves rejected
n1n1r3/2B3n1/1bn1qkPb/RQr3bQ/1Bb1K1B1/B2N2Nr/3R4/1q1r4 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 Ke7 Kf3 h5 e4 d5 b4 f5 g4 a5 e5 h3 b6 h4 b5 h2 b7 h3 e6 d4 b6 a4 g5 c2 g6 a3 Be3 c1B Ra2 d3 Nd2 Qd6 Qe2 Kf6 e7 Be6 e8Q Rh5 Bc5 Bc4 Qd8+ Ne7 Qg2 Nd7 b8B Ne5+ Kf2 f3 Ke3 f4+ Ke4 f2 b7 f3 Bb6 Qe6 Bc5 Bh6 Rc2 a2 Qg4 a1B Qe8 Nc8 Qc6 Bd4 Nb3 d2 Qc7 d1R Qd7 Bcg5 Bd3 f1N Qh4 f2 Qg4 Ne3 Bc7 f1Q b8B Nd5 Rd2 Ndb6 Ne2 Qe1 Rg1 h1N Qb5 h2 Ba3 Rh3 Bb4 Ra5 Bb1 Na8 Qh5 Bb6 Nc5 Qf1 Bd6 Qe1 Bbc7 Ng3+ Kd4 h1R Bf5 R1h2 Bg4 Nf5+ Ke4 Ng7 Nd3 Qf1 Ng3 Rf2 Qd7 Rc5 Qb5 Rf3 Nf4 Ra3 Nd3 Ra7 Rgg2 Rb7 Ba3 Rb8 Rge2 Qe1 Ra2 Qb4 Red2 Qb1 Bf8 Ne7 Bb4 Re8 Ra5 Nc8 Ba3 Rc6 Bfb4 Rc5 Be2 Rg1 Bf3 Rd1 Bg4 Nc6+
b1nB3Q/2qK1Nq1/2rn1q1n/1Q1r3R/NnR2Bk1/3r4/4qPN1/1Nn1n3 w - - 0 1 legal: proof: g4 f5 b4 a5 d4 axb4 g5 c5 e3 cxd4 g6 e6 Kd2 Bd6 Ke1 Bf4 exf4 hxg6 Bb5 g5 Bd3 g4 Be4 fxe4 Kd2 Kf7 a4 Kf6 h4 Kf5 c4 g5 c5 d5 h5 b5 c6 d3 Ke3 b3 Kd4 d2 Kc5 b4 h6 e5 c7 d4 a5 g3 a6 e3 h7 g4 a7 b2 Kb5 g2 Ra6 e4 Qf1 d1Q Re6 e2 Kc5 e1N Bd2 e3 Qb5 g3 Re7 e2 Re5+ Kg4 f5 b3 f6 d3 f7 Qf6 f8B Nc2 Re6 e1N Kd6 Nb4 Bdh6 d2 Qc5 Bb7 c8N Qe2 Qc1 d1R+ Nd2 b1N Qb2 Nd7 Qa1 b2 Qa2 Nc3 Rh3 b1Q Qa6 Qc1 Rh5 Nb6 Nh3 g1N Qb5 g2 Bf4 Nh6 Be7 Rd8+ Kc7 Rd3 h8N Ne4+ Rc6 Qc5 Nf7 Nd6 Bd8 Rb8 Nb1 Ba8 Nd2 Qcc3 Nb1 Rd5 Rc4 R1d3 Ne7 Nbc8 Kd7 R5d4 Nd5 Rb6 Bh2 Ra6 Bf4 Rc6 Nb6 Rd5 Na4 Qa2 Nhg5 Ne2 Nf3 g1Q Nh4 Nc1 Ng2 Qab2 Qc5 Qe2 Qb5 Bb7 a8Q Qce5 Qa7 Ba8 Qe3 Qc3 Qe8 Qh2 Qh8 Qg7 Re5 Qh4 Rh5 Qhf6 Rd4 Qc5 Re4 Qb6 Rc4 Qc7+
1rb4b/r1r2N1R/Q1P2n1n/2Qr2R1/1N1bB3/6rk/N1b1rnNr/3B2K1 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 f5 Rb1 h6 Ra1 Qf6 Bg5 f4 Nb1 Qf5 gxf5 hxg5 Kf2 Ke7 e4 Kf6 c4 d5 a4 b5 h4 d3 h5 d2 a5 g4 c5 Kg5 e5 b3 a6 b4 c6 d4 e6 d3 e7 b2 e8N b3 a7 Nh6 f6 Nd7 f7 Nf6 Be2 g3+ Kf1 Kg4 Nh3 g5 Nc3 b1B Qc1 d1N Ng1 g2+ Ke1 b2 Qd2 Bc2 Ra6 b1R Nc7 Bg7 f8Q Rbb8 Na2 Nf2 Nh3 g1B Qa5 d2+ Kf1 Kg3 Qfb4 g4 Bd1 Rh7 Qe7 Bh8 Nd5 Kh4 Rh2 g3 Qec5 Rc7 Rb6 Kg4 Qa6 Kh4 Rb1 Kg4 Ndb4 Kh4 Be2 Kg4 Re1 d1R Rh1 Rd8 Bd1 Rd5 Re5 Kh4 Rg5 g2+ Ke1 N2e4 Rh2 f2+ Ke2 f1R Rh1 Nf5 h6 Bd4 h7 g1R Rh2 Nh6 Rh1 Bg7 h8N Rg3 Nf7 Rf2+ Ke1 f3 Nf4+ Rh2 Kf1 Nf2 Ng2+ Kh3 Kg1 Bh8 Qcb5 Rbb7 Qc5 Rab8 a8B Ra7 Bb7 Bd7 Bc8 Be6 Qaa5 Bef5 Ba6 Bc8 Bd3 N2e4+ Kf1 f2 Rf5 Nhg4 Rg1 Rh1 Ne3 Kh4 Rg5 Rhh3 Qa6 Rh1 Ke2 f1R Rg2 Rhh3 Rh2 Rf2+ Ke1 Re2+ Kf1 Nef2 Be4 Rf3 Kg1 Rg3+ Rg2 Nh6 Rg7 Rh2 Rh7 Rf3 Rg5 Rg3+ Ng2+ Kh3
1nr5/2q4B/bq2nR1P/4b2K/N2n1B1q/nbQN3q/1RN1k3/2QNbb2 w - - 0 1 illegal: No possible last move, all moves rejected
1b1B2r1/n2r2n1/r1k2N1q/1rB1B3/2Q1rNbR/3P1pB1/5nqb/1K2Q1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 h4 Kd7 b4 c5 e4 f5 e5 a5 d3 g5 Kd2 f4 Kc2 a4 h5 g4 b6 a3 e6+ Kc6 h6 f3 e7 c3 b7 c4 h7 a2 Rh3 Nh6 Qe1 Rg8 h8B Qb6 Qe3 Nf5 Be5 Ng7 Ne2 g1B Bd4 g2 Bc5 g3 Bb2 Bg4 Qg5 Ra6 Qd2 Bh2 Ba3 g1Q Bf2 g2 Rh4 Qf1 Be3 g1N Qe1 Nh3 Nf4 Qg2+ Nd2 Nf2 Ne4 Ra5 Rb1 a1R Bc5 Ra6 Kc1 c2 Nf6 Ra5 Kb2 c1R Qc3 Re1 e8Q+ Bd7 Qc2 Re4 Rg1 Bd6 Qe7 Ra2+ Kb1 c3 Qb3 Ra6 Qc4 Bg4 Bb2 R2a5 Qe5 Kc7 b5 Nc6 b8B+ Kb7 Bc7 Na7 Bd8 Bb8 Ba1 Qd6 b6 Kc6 b7 c2+ Kb2 c1R Qe7 Rc3 Kb1 Rca3 Be5 R3a4 Qc3 Rad4 Qc4 Bc7 b8B Qe6 N6h5 Qh6 Nf6 Rd7 Bb2 Red4 Qe1 Re4 Be5 Bb6 Bbd6 Bc7 N4d5 Bb8 Bg3 Nh3 Bde5 Nf2 Nf4 Rb5+
2q3q1/2NKQ1Br/2pbRB1r/3N1R1P/nB4q1/1r6/2n1Q1B1/1b1nn1kn w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 e5 c5 exf4 c6 axb4 axb5 dxc6 Ra4 c5 Ra1 c4 Kf2 Ke7 h4 Kf6 d4 Kf5 h5 Ke4 e3 g5 b6 f5 b7 b3 d5 c3 d6 c2 d7 f3 Kg3 f2 Rh3 f4+ Kg2 c6 Ra7 b2 Bd2 c1N Ra2 f3+ Kg3 Ne7 Qc2+ Nd3 Bc3 Rh6 Qc1 Ne1 Ra1 Ra7 Be5 Nf5+ Kh2 Nd4 Kg3 Na6 b8B Ndc2 Qd2 Nc5 Ra5 Na4 Bg2 Bd6 Na3 b1R Ne2 Rb3 Nb5 Qf8 d8B Rah7 Qd1 Bf5 Bf6 Qc8 Nf4 Bg6 Nd5 f1N+ Kf2 Bf5 Nbc7 Ng3 Qe2 Bg6 Ba7 Bf5 Bc5 Nh1+ Kg1 g3 Bb4 g4 Rb5 Bg6 Bg7 Kf5 e4+ Kg5 Kf1 f2 Bd4 Bf5 e5 Bg6 e6 Kf5 Nb6+ Kf4 e7 Bf5 Bdf6 Bg6 Qc4+ Ke3 e8Q+ Qe6 Bh8 Be7 Be4 Nd4 Ba5 Qc8 Bb4 Bf5 Bf3 Bb1 Rf5 Ndc2 Qcf7 Nd3 Kg2 f1N Be4 Bd6 Qe5 Ke2 Qfe7 Nfe3+ Kg1 g2 Kh2 Nc4 Nbd5 Ncb2 Bf3+ Kf2 Be4+ Nf4 Re3 Nd1 Bf3 Nd3 Re2+ Kf1 Re4 Nhf2 Kg3 Nde1 Kf4 g1Q Re2 g3 Re3 Bc5 Q5e6 g2 Ke5 Nh1 Re2 Be3 Kd6 Bf4+ Qe5 Qd4 Re4 g1Q Re3 Qg3 Bg2+ Kf2 Re4 Qgg8 Bg7 Kg1 Re2 Qb8 Kd7 Bh2 Qe4 Bd6 Qg4 Qf4 Re6 Qg5 Qc4 Qg4 Qe2 Qbc8+
n3Qr1R/3P1QQr/n1N2RB1/B1r5/N1KQ2pk/3rq1b1/3b1q2/br5q w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 a5 b4 axb4 h5 Bf5 Nh3 Bg6 hxg6 e6 f5 exf5 Ng1 fxg4 Rh5 g3 Rh2 Qd7 Rh1 Qd8 a4 Ke7 e4 Kf6 Ke2 b5 d4 c5 a5 h5 a6 h4 g7 c3 Kd3 c2 a7 h3 d5 c4+ Kd4 g4 d6 g2 d7 h2 Bd3 b3 Kd5 c3 Bf1 b4 Ra3 b2 Ra5 b3 Nh3 g1B Nf2 Rh7 Qe2 Qe7 Qe1 Na6 Bh6 c1R Ra3 c2 Nd3 Bd4 Nd2 b1R Nc5 Ba1 Qe2 b2 e5+ Kf5 e6 Nf6+ Kd4 Nd5 g8Q Nb6 Ndb3 f6 Bg7 Kg5 Na4 f5 Qd3 f4 Na5 f3 Nc6 f2 Qf7 Kh4 Rc3 Rb8 a8Q Qa3 Qd1 Bd6 e7 Rf8 e8Q Bg3 Bd3 f1Q Bg6 Qf2+ Kd3 Qe7 Be5 Qg5 Bc7 Qgc5 Qa7 Na8 Ba5 Qb6 Qf1 Qbe3+ Kc4 Rd1 Qg1 c1B Qd4 Rd3 Qdg7 Bd2 Rb3 Rd1 Rb4 b1R Rb6 Qfe2 Qgf2 Re1 Q2f4 Q2f2 Qfd4 Rg1 Ne7 Rb5 Rf6 Rgb1 Nc6 Rf5 Rc1 h1Q Rc3 Nb4 Rb3 Na6 Rb8 Rfh5 Qee4 Re8 Rd8 Re7 Rf8 Re8 Rh8 Rf8 Qee8 Rc5+
b5Rr/p1P2b2/KQ1bkB2/q3N3/3nQnb1/1N2nB1q/r1QbR3/Q3r3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 f5 Kc4 g5 b4 d5+ Kc5 f3 e4 g3 c4 f4 h4 d3 e5 g4 h5 g2 e6 d2 b6 g3 Kb5 f2 c5 d4 h6 f3 c6 d3 h7 Nf6 c7 Nh5 b7 Qd6 Ka5 Nf4 b5 Nc6+ Ka6 Nd4+ b6 Qa3+ Qa4 d1B Ra2 d2 Bb2 Bb3 Qa5 d1N Nd2 Rb8 Be2 f1Q Rh5 f2 Ngf3 g1R Rg5 g2 Ne5 Rh1 Rg8 g1B Ba1 Qh3 Bf3 Bd5 Nb3 f1B+ Re2 Bg2 Bb2 Kd6 e7 Bf7 e8Q Bg4 Bc3 Rd8 b8Q Be3 b7 Bd2 Qa8 Ne3 b8Q Rd1 Qea4 Ke6 Qbb6+ Bd6 Qe4 Ra1 Qc2 Ra2 Qac6 Rb8 Q6e4 Bh1 Rd8 Re8 h8Q Bg2 Qg7 Rh8 Rg8 Re8 Ba1 Rf8 Qeh7 Nh5 Bc6 Nf3 Nd3 Bg6 Qgc3 Rf6 Ba8 Bf7 Q3b2 Bh1 Qbb1 Rf4 Be5 Nd4 Bf6 Rf1 Ne5 Nf4 Qa1 Re1 Qhg6 Bg2 Qgd3 Bf1 Bh1 Bg2 Qh7 Bd5 Bf3 Ba8 Qhe4 Qxa5+
Qrb1n2n/5b2/R1b1q3/1BP1Bb1q/2b1Nb2/1KRR4/1QpNr3/R5bk w - - 0 1 illegal: No possible last move, all moves rejected
1bB5/r3B3/r1NnBn2/1N1r2BR/1b6/np1RqbK1/nPk3bQ/4bQ2 w - - 0 1 legal: proof: f4 g5 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Bc5 Qd1 Bf8 a4 Nc6 h4 gxh4 e3 fxe3 a5 Nb4 a6 Nxa6 Qc2 Nb4 Qd1 Na2 g4 Ke7 d4 Kf6 g5+ Kf5 g6 Ke4 g7 a5 d6 h5 d5 b5 d7 f5 d6 c5 Bd2 e2 Kf2 Kd3 Qa4 b4 Bf4 b3 Bh6 f4 Qc6 c4 Kf3 a4 Qb6 a3 Qa5 c3 Bh3 e1B Qd5+ Kc2 Bg4 h3 Qc4 h4 Qa6 h2 Ne2 h3 Qc4 Qe7 d8B Nf6 g8B Ra6 d7 Rh7 Bg5 Bb7+ Qc6 Qe5 Ba5 Bb4 Rf1 h1R d8Q h2 Qb6 Qe3+ Kg2 Rg7 Rg1 f3+ Kh3 f2+ Kg2 f1N Qf3 Ng3 Qd6 Nge4 Bd8 Bc6 Bf5 Rga7 Bc8 Ba8 Qdg3 Nd6 Bge6 Bd5 Rf1 Rg1+ Kh3 h1B Be7 Bg2+ Kh4 Bc6 Qff2 Ba8 Qh2 Baf3 Kg3 Rh1 Qh6 Rh4 Rh1 Rd4 Rh5 Rd5 Nd4+ Kd3 Nd2 c2 Nc4 c1B Na5 Bcd2 Qf8 Bdc3 Nb5 Be5+ Kh4 Bh2 Nc6 Be5 Qg3 Kc2 Rd1 Nc4 Rh6 Bb8 Rh5 Nd6 Qf7 Nc1 Qf8 a2 Rd3 a1N Qf7 Na2 Qf2+ Kc1 Kg3 Nc2 Qh7 Na3 Qh6 Bed2 Qf1+ Kc2 Qh8 Ng4 Qe5 Nf6 Qf4 Bdc3 Qh4 Bd2 Qh2 Be1+
n3nR2/r1BN4/bb1r3p/3n1BnP/q1n3Q1/1B2RrN1/1r4KB/2kbQ3 w - - 0 1 legal: proof: e4 c5 g4 d5 a4 dxe4 b4 cxb4 a5 f5 Qe2 fxg4 Qf3 b5 axb6 axb6 Qd1 b5 d4 Kf7 c4 Kg6 f4 Kf5 Kf2 g5 h4 e5 d5 e3+ Kg2 Ke4 d6 b3 h5 e2 f5 e1N+ Kg3 h6 f6 b2 c5 b4 c6 b3 d7 Na6 c7 Ra7 f7 Nf6 Bc4 Nd3 Bd2 Bc5 f8Q Nf4 Qd6 Qe8 d8B Bb6 Bb5 Rf8 Qe7 N4d5 Be1 Ke3 Bc3 e4 Bd3 Qa4 Na3 b1N Bc4 b2 Qb4 Ne8 Nb5 Nd2 Kg2 b1B Be2 g3 Na3 g4 Nf3 Nc4 Ng5 Rf3 Qd6 Bc2 Qb1 Bd1 Be5 Kd2 Re1 e3 Qdg6 Bb7 c8B Nac7 Qbe4 Ba6 Bf5 Na8 Bd3 e2 Bc2 Rd3 Bdc7 Rf3 Rf1 e1R Bb3 Ree3 Ra2+ Kc1 Re2 Rd3 Re3 Rd4 Rf2 Rd2 Qe6 Rb2 Qf4 Qc6 Ne4 Qa4 Kg1 g2 Ng3 Ndf6 Kh2 g1N Kg2 Nh3 Qg5 Nd5 Qg7 Nd2 Nc4 Ng5 Qgg6 Nf7 Bed6 Ng5 Ne5 Nc4 Qg7 Nh3 Nd7 Ng5 Nf1 g3 Qc3+ Bc2 Qe1+ Bd1 Qe4 Qb4 Qg4 Qa4 Kg1 g2 Ng3 Qb5 Kh2 g1R Be5 Rh1+ Kg2 Rh3 Ne4 Rh1 Bh2 Qa4 Ng3 Rf1 Bfc2 Rf6 Rf5 Rd6 Rf8 Nd2 Bg6 Rf3 Bf5 Nc4+
5N2/b1RQr3/K2qp1bQ/b1rPn3/n1N2n2/1QB3B1/rr3nk1/Q3Rn2 w - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 h5 c4 dxc4 Be2 g5 Bf3 gxf4 g5 Qd5 Be2 Qd8 Bg4 hxg4 Ke2 Kd7 d4 Kd6 h4 Kd5 b4 c5 g6 a5 b6 e3 b5 Ke4 b7 f3+ Kf1 a4 g7 c3 h5 f2 Ke2 f1N h6 g3 b6 g2 d5 c4 h7 c2 Rh6 a3 Rh1 a2 Bd2 c1R Qe1 c3 Rh5 c2 Nh3 g1B Ba5 Bf5 Qc3 Nf6 g8Q Ng4 Rh6 Nd7 b8Q Nf2 b7 Ne5 Qb2 Bg6 Nf4 Qd6 Bc3 e6 Rh5 Ra7 Na3 Be7 Qa8 Bd8 b8B Ba5 Qg7 Re7 Qb3 Rb1 Rh1 Rc8 h8Q Rc5 Qhh6 Rb2 Rc1 a1R Nc4 Raa2 Qa6 Re8 Qd7 Re7 Ke1 Kf3 Bc7 Bd3 Ng6 e2 Nf8 Kg2 Qa8 Bg6 Qa7 Ne3 Kd2 e1N Qa8 N1d3 Bb8 Bh2 Rhe1 Bg1 Qaa7 Nf1+ Ke2 Nd2 Ke3 Nf1+ Kd4 Rb1 Qa8 Nb2 Bc7 Bb4 Qaa3 Na4 Qab2 Ba5 Qa1 Rbb2 Bb8 Qc6 Bd6 Ned3 Be5 Qd6 Bg3 Ne5 Re4 Rc6 Na3 Ned3 Bd2 Nf4 Rce1 c1N Bc3 Rb6 Kc4 Nh1 Rd4 Rc6+ Kb5 Ncd3 Rc4 Ba7 Rc5 Rc8 Nc4 Ne5 Rc6 Nf2 Ka6 Bh5 Rb6 Rc5 Rc6 B7b6 Rc8 Bg6 Rc7 Ba7+
bb1nqQqQ/p4bb1/4B2R/6QP/1b2nQrb/k7/1RB1N3/q1NK1r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 e4 Ke7 h4 Kd6 c4 Kc5 h5 Kb4 c5 g5 b6 f5 b7 d5 c6 d3 c7 f4 e5 d4 e6 d2+ Ke2 f3+ Kd3 g2 Kc2 f2 b3 g3 e7 g4 e8Q d3+ Kb2 Bg7+ Nc3 Nc6 b8Q+ Bb7 c8B Nf6 Rh3 Rf8 Be6 Ne4 Be2 f1Q Qb1 d1Q Nf3 g1B Bg8 d2 Ra5 g2 Nd4 g3 Qc1 Bf2 Qf4 g1B Bd3 g2 Be6 Qfe2 Rh2 Bh4 Ra6 Rf7 Qg5 Rf1 Qh8 Qg8 Bc2 Nd8 Rd6 Qee1 Nde2 Bc5 Kb1 g1B Na2+ Kb5 Rf2 Bh2 b4 B2g3 Ra6 Bb8 Rd6 Bd5 Ra6 Kc4 b5 Bb4 b6 Kc5 b7 Kb5 Bf5 Bf7 Rh6 Kc5 Qf4 Kc4 Be6+ Kc5 Rf3 Kb5 Rb3 Ka4 Rb2+ Ka3 Ng3 Qe3 Ne2 Qe1 Qg5 d1B Qd2 Qd4 Nac1 Qd7 Qdf4 Qde8 Nd4 Bf3 Ne2 B8d6 b8Q Qc3 Qc8 Bb8 Bcb3 Qd4 Kc2 Qf6 Rb1 Qa1 Rb2 Bbe5 Qc5 Rc8 Ba4 Bb8 Bab3 Rc7 Ba4 Rd7 Qf8 Bg2 Bab3 Rd3 Ba4 Rg3 Bab3 Rg4 Ba4 Rf3 Kd1 Rf2 Bab3 Rf1+ Kc2 Nc3 Kd2 Ba8 Bc2 Rf2 Ke1 Ne4+ Kd1 Rf1+
1KQ1rkr1/1nB5/q2n1q2/8/qQ4rR/NNqRB1B1/q1P1p3/r2bb2B w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 h5 f4 d5 g4 e5 b6 d3 Ke3 d2 f5 h3 b7 d4+ Ke2 e3 Kd3 h4 Kc4 d3 Kb5 h2 g5 e4 g6 e2 g7 e1Q f6 b3 Bg2 b2 Ra3 e3 Nh3 Bg4 Nf2 h3 Ne4 Nh6 g8Q Nc6 b8B Na5 Qh7 Nf7 Bg3 Nb7 Kc6 Bb4 Nec3 Nfd6 f7+ Kf8 Qf3 d1R Ra6 d2 Ra7 Qf6 Kc7 Re8 Ne4 Rg8 Na3 b1Q Qf2 Qa2 Nc5 Qf1 Qh8 Qa6 Be4 Rg1 Nb3 d1R Qf4 Be1 Bf3 Bh5 Qb4 Rg2 Bd2 Ra1 Ra8 Rg1 Rd8 Bg4 Bd5 Bd1 Kb8 e2 Be3 Qa4 Qh7 Qc3 Qf5 Rg4 Qc8 Rg2 Rf1 h1Q Rf4 h2 Rd4 Rg8 Rh4 Qf1 Bf3 Rg1 Bh1 Qff6 Rd7 Rf1 Rd8 Rf4 Rd7 Rfg4 Rd8 Ke7 f8B+ Kf7 Bfh6 Ke7 Bhg5 Kf8 Bb6 Qa6 Bc7 Qa4 Be3 Qa6 Bg2 h1Q Bc6 Qd5 Rd7 Qda5 Bh1 Qa4 Rd8 Qc5 Rd7 Nb5 Rd4 N5d6 Rd3 Qcc3
1Qrr2Bb/3bb1NQ/K1b1B2q/1NB4R/krqR4/3np3/1P2B1r1/3n1r2 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Qf3 g5 Qg3 gxf4 g5 Nc6 Qf3 Nb8 Qg4 hxg4 Kd2 e5 c4 a5 h4 d5 b6 Kd7 b7 Kc6 c5 a4 g6 e3+ Kd3 Kb5 h5 a3 h6 g3 h7 e2 g7 e1B c6 g2 c7 e4+ Kc2+ d3+ Kb3 e3 Nh3 g1R Be2 d4 Bd1 a2 Bc2 f3 Nf4 f2 Bd1 f1Q Rh5+ Qg5 Ne2 d2 Rh1 d3 Rh2 Nc6 Ng3 Ne5 Kc3 Nf6 g8B Rb8 Bd5 Rg2 Bf7 Nfg4 Be2 d1B+ Bd2 Qh6 Bg8 Nf2 Nf5 Be7 Rh5 Ba4 Ng7 Bd7 c8B Nd1+ Kd4 B1h4 Bb4 Bhf6 Bc5 Ka5 Na3 d2 Nb5 Nd3+ Kc4 Bc3 Na7 Bac6 Nb5 Ka4 Rc1 a1R Rb1 Be8 Bce6 Bed7 Rc1 Rc8 b8Q Ra3 Rc2 Rb3 Rc1 N1f2 Rc2 d1R Rd2 Rc1 Qd6 Nd1 Qb8 N3f2 Rd4 Nd3 Bgf7 Rhf8 h8Q Rfd8 Bg8 Rb1 Qh7 Ra1 Rf4 Bcf6 Rd4 Be5 Nf5 Bh8 Ng7 Nf4 Bd6 Rb4+ Kc5 Nd3+ Kb6 Qff4 Bc5 Qe4 Ka6 Rc1 Rdd5 Qc4 Rd4 Rc2 B2g4 Rcf2 Be2 Rf1
N1R1B2q/nb2Q3/K1Rn2qq/1QB4b/3pNB1r/5knB/Pb3b1n/2n5 w - - 0 1 illegal: No possible last move
2Qbbn2/3q1Ppq/QR4Bk/N5n1/n4bnb/3q3B/2b1NRKQ/Qr6 w - - 0 1 legal: proof: d4 a5 g4 b5 e4 c5 b4 axb4 f4 cxd4 g5 h6 f5 f6 Be3 Ra3 Bf4 hxg5 Be5 fxe5 f6 Rf3 Qc1 Rf4 Qd1 Rf5 exf5 e4 Kf2 Kf7 a4 e5 h4 d5 c4 d3 a5 g4 h5 d4 a6 g3+ Kg2 d2 h6 d3 h7 e3 a7 b3 a8Q e2 c5 e1N+ Kh3 g2 c6 b2 c7 b4 Kh2 e4 Nh3 g1B+ Kg3 b3 Qc2 d1N Ra2 e3 Rh2 d2 Qa3 e2 Nf2 Qd7 Rh6 Nc3 Bg2 d1Q Bc6 Bh2+ Kh3 Nf3 Nd3 e1B Kg2 Ng5 Qe2 Bh4 Nc1 Na4 Be4 Be7 Nc3 b1Q Qa6 b2 Nb3 Bd8 Ne2 Bf4 Na5 Qd1d3 Rg6 Bb7 c8B Nh6 Qc3 Rg8 h8Q Bc6 Qe1 Qbc2 Qa1 b1B Rb2 Ng4 Qh5 Bf2 Qh2 Bh4 Rb6 Re8 Rb2 Kg8 f7+ Kh7 f8Q Re5 Re6 Rb5 f6+ Kh6 Qc5 Rb4 Qcc4 Bb5 Rb6 Bc6 f7 Rb5 Bf3 Qh7 Qc5 Qcd3 Be4 Bc2 Ra2 Rb1 Rab2 Nf3 Bg6 Bb5 Qc6 Ng5 Qca8 Qe7 Be6 Nd7 Q8c8 Nf8 Ra2 Qed7 Bef5 Nf6 Bh3 Ng4 Nc3 Bd1 Rf2 Bc2 Ne2 Q7d4 Qaa8 Be8 Qaa6 Qd7
2Qn2rb/1nBKbRQ1/r1nqn3/7B/1p2NP2/2R2QpQ/kN4n1/b6r w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Ba6 Be3 axb4 Bc1 b3 Bh3 b4 Bf1 Bb5 axb5 Ra3 Nh3 Ra2 Ng1 Ra8 Ke2 Kf7 f4 Ke6 c4 d5 h4 g5 c5 b2 c6 d3+ Ke3 d2 Kd4 g3 Kc5 g2 h5 g4 h6 g3 c7 d4 b6 e3 b7 d3 h7 e2 Ra4 e1N Nh3 g1B+ Nf2 Nc6 b8Q Qd6+ Kb6 Kd5 c8Q Kc4 Qe8 e5 Rh5 e4 Ra1 e3 Qc7 e2 Qa7 Nf3 Ra6 e1B Qd8 Nh6 Be2 Nf7 Qde7 Rg8 h8Q Nfd4 Qab7 Nfd8 Qh6 N4e6 Nc3 b1N Qhg7 Na3 Rh7 Nb5 Qh4 Be7 Bh5 Ra7 Qdg4 Kb3 Bb2 d1R Na4 d2 Qf3+ Ka2 Qh3 Rc1 Bd4 d1N Be5 Bc3 Qc8 Ne3 Ne4 Ba1 Ra5 Bf2 Ra6 Rh1 Nb2+ Kb1 Ra3 Ng2+ Re3 Be1 Rc3 Ka2 Rc1 Bc3 Rc2 Qd5 Bc7 Nd6 Rc1 Be5 Rc3 Ra3 Qg6 Ra4 Rf7 Bh8 Qg7 N6b7 Be5 Ng5 Kc7 Ra6 Bd6 Qc5 Kd7 Nge6 Bc7 Qd6+
1N5r/nB2Bppq/P2Q1r2/b1N3B1/5R2/K1br4/1n1QR1b1/2nn1Bnk w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 Nd2 hxg4 Nb1 d5 cxd5 c5 Qd3 cxd4 Qd2 Ra6 Qd1 Ra8 Kd2 Kd7 Kc2 Kd6 Kb2 Ke5 a4 Ke4 h4 b5 e3 g3 d6 g2 d7 f3 a5 f2 a6 b3 h5 b4 h6 d3 h7 d2 Na3 Nf6 Qe1 d1N+ Kb1 b2 Ka2 b1N Bb2 Nh5 Qd2 Qh4 d8B Ng3 Qd6 Bb7 Rh3 Nd2 Nc4 b3+ Ka3 Nc6 Bbf6 b2 Bde7 Rd8 Rh2 Nf3 Na5 Na7 Bg5 Ne2 Nh3 g1B Nc6 Nc1 Nf4 b1R Nb8 Rb6 Rb1 Nb2 Ne6 Qh6 Rg2 Bh2 Qd2 Ng1 Nc5+ Kf3 e4 Bc7 e5 Rf6 e6 Ba5 Rg4 Qg6 Rf4+ Kg3 Ra1 Kh2 Ra2 Bg2 Qd6 Kh1 Qd2 Rg8 h8Q+ Qh6 Qh7 Rh8 Qhd3 Qh7 Qd6 Rd7 Bd8 Bc3 e7 Ba5 e8B Be7 Bc4 f1N Bb5 Bf8 Be7 Ne3 Bf1 Rd8 Bc6 Ned1 Bb7 Bc3 Qe5 Rd4 Qd6 Rd3 Qe3 Na4 Re2 Nab2 Bd8 Be7 Qd2 Bf8 Qd4 Bd6 Be7 Bc7 Qd6 B7a5
3R2qr/pb3Q2/k5B1/b2Nr1n1/1Q1p1nP1/5b1r/nR2RN2/KBRb2b1 w - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Bd2 gxh4 Bc3 b5 axb5 dxc3 b4 d5 g4 Kd7 e4 Kc7 c5 Kb7 e5 h5 b6 f5 e6 c2 Kd2 c1B+ Kc2 h3 e7 d4 e8Q h4 b5 f3 Ra5 f4 Qd3 f2 Nc3 h2 Kb1 h3 Ne4 f3 Nd2 Ne7 Ne4 Na6 Ne2 Nd5 Ka2 Be3 Nf4 Nab4+ Ka1 Na2 Qb1 Rh5 Ra4 Re5 Bd3 f1B Nf2 Be2 Qb4 Bd1 Bg6 Bh6 Re1 h1B Re2 h2 Ra3 Bg2 Rc3 h1R Rc1 Rh3 Qe6 Qg8 c6+ Kb8 c7+ Kb7 Qf7 Bf8 Nh5 Nf4 Nf6 Be7 Nd5 Bd8 Nd3 Bg1 Nf2 Rb8 Bb1 Ka8 Bg6 Bb7 c8B Bc7 Bcf5 Rbe8 Nh1 f2 Bb1 f1N Nf2 Rd8 Bbc2 Ng3 Bb1 Bc6 b7+ Kb8 Rb2 Ba5 Re2 Rc8 Ne7 Kc7 b8R Ne4 Ra8 Kb7 b6 Bh1 Nd5+ Ka6 b7 Bf3 b8R Ng5 Rb7 Rf8 Rd8 Rfe8 Qa4 Rf8 Rbb2 Bb7 Qb4 Qg7 Rd7 Rfh8 Rd8 Qg8
1nr4k/3R2N1/QnQP1nRK/B1bb4/2q5/qp4n1/2qpr1R1/1N2nB1R w - - 0 1 legal: proof: c4 d5 e4 dxc4 h4 f5 exf5 g5 b4 gxh4 d4 a5 Qb3 axb4 Qd3 cxd3 Kd2 Kf7 Ke3 Kg7 Kf4 e5+ Kg4 h5+ Kf3 b5 g4 c5 a4 b3 g5 d2 g6 h3 a5 c4 d5 b2 a6 h4 Kg4 h2 f4 e4 a7 c3 Ra2 e3 Ne2 h3 Nd4 c2 Ra6 Qc7 Kg5 Nf6 Ne6+ Kg8 g7 e2 Rd6 e1N Rd7 Bc5 d6 b4 Kg6 Nd5 f6 b3 f5 Nb6 Kg5 Bb7 f7+ Kh7 g8R Bd5 Rg6 Rc8 f6 Kh8 Kh6 Re8 Ng7 Re2 Nc3 b1Q Bb2 Qa1 Nb1 c1Q Bc3 Qc2 Ba5 Qa3 Rg2 Qc8 Rg6 Qa6 Rg2 Qac4 f8Q+ Bg8 Qe7 Be6 f7 Bd5 Rhg1 h1N Qe4 Ng3 Rh1 h2 f8R+ Bg8 Rf3 Nh5 Rfg3 Nf6 Qc6 Bd5 Rg5 Na6 R5g3 Rc8 a8Q Nb8 Qa6 Qd4 Rhg1 h1N Rg6 Ng3 Rh1 Qdc4
bRK4R/4BQ1Q/NP2Q2Q/nk2rp2/5p2/1n1r2rq/n4N1n/q2n1Bb1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 d5 Kd3 Kd7 e4 f5 c4 h5 g4 h3 b6 Kc6 g5 b3 e5 h2 e6 h4 g6 h3 e7 b2 g7 Bb7 c5 Ra5 Nf3 Ba8 Be3 Nh6 g8Q Ng4 Ne1 Kb5 e8Q+ Nc6 Nd2 b1N Qgf7 Rg8 Nb3 Nd2 Qh7 Qh4 Rg1 h1R Qef7 Nh2 Qdh5 Rg3 Q5h6 Ra3 Rd1 Na5 c6 Bc5 c7 Qg4 c8Q Qh5 Kc2+ d3+ Kc3 Qh4 Qce6 d4+ Kb2 Qg4 Rg2 Rg1 Bf2 Re3 Bh4 Re5 Be7 Qf3 Rg6 Rg3 Rg8 Qg2 Rh8 Qh1 Na1 Ndb3 Nac2 Qf3 Nb4 Qh1 Bg2 d2 Na6 d3 Bf1 Bg1 Rc1 Qf3 Rcc8 Qe3 Rb8 d1N+ Kb1 Nc3+ Kb2 Bc6 Nc2 Qf3 Ne3 Ba8 Nd1 Na2 Nf2 Qg4 Bg2 d2 Kc2 Nf3 Kd3 h2 Bh3 d1N Bf1 h1Q Bb4 Nc6 Be7 Ka5 Kc4 Nh2 Qg5 Qh3 Qgh6 Re4+ Kd5 Re5+ Kd6 Rd3+ Kc7 Kb5 Rbg8 Nca5 Rf8 Qd5 Rb8 Qd4 Kc8 Qa1 Bg2 Rg3 Bf1+ Nc4 Qff6 Nd2 Qff8 Rad3 Qfg7 Nb3 Qgf7 Nca5
B2B4/1K1q1p1B/nR1Qbq2/2rB3R/Nbq5/1pP2b2/nQ2r1k1/3N1bb1 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 hxg5 Qf6 Nd2 Qe7 Nb1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 b5 g4 h5 e3 h4 g6 h3 g7 d3 g5 h2 g6 f3 Nh3 d2 Ng5 f2 Ne6 a2 Qh5 d1B Qh6 b4 Bh3 f1B Bg4 b3 Nc3 Qf6 Bf3 Ne7 g8Q Nec6 g7 Na6 Nc5 Ncb4 N5a4 Ke6 Qf4 Rh5 Qh8 Rc5 g8B d6 Bb2 Bde2 Re1 a1B Bh7 Na2 Nd1 Be7 Ba3 Bd4 Bb4 Bd7 Ba5 Re8 Bd8 Bc8 c3 Bf8 Qg8 Bd7 Qg2 Bc8 Rg1 h1Q Qh6 Qh3 Rh1 Qg4+ Qf4 Re7 Rh5 Qgh4 Qf2 Bd7 Bh1 Bg4 Qb2 Bc8 Re2 d5+ Kd3 Re8 e4 Bg1 e5 d4 Ke4 d3 Rg2 Bge2 Rg6 d2 Rgh6 Ra5 Rg6 Bb4 Bg2 Rc5 Bh1 Kd7 e6+ Kc6 e7 Be6 Bf3 Rg8 Rgh6 Rg2 Rg6 Rf2 Bh1 B2g4 Qh6 Rg2 e8B+ Kd6 Bc6 Re2+ Kd3 Bf3 Ba8 Bfg4 Bhd5 Bf3 Nf2 d1Q+ Qhd2 Qc1 Nd1 Qg4 Qh6 Qcg5 Qf8+ Ke5 Rgh6 Kf4 Qd6+ Qfe5 Rf6+ Kg3 Rg6 Kg2 Rf6 Rb5 Rg6 Qh3 Kc4 Qf6 Rgh6 Rb8 Rg6 Rc8+ Kb5 Rc5+ Kb6 Qgg4 Kb7 Qhh4 Rgh6 Qc4 Rg6+ Qhg4 Rgg5 Ra5 Bde4 Bd7 Rb5 Qge6 Rb6 Rc5 Bc6 Qee7 Bd5 Be6+ Qc7 Qe8 Qd6 Qd7+
2r2n2/bNkr4/1rb4r/p2rq1r1/p1RRQ1P1/rBRK2Q1/2R4B/2n1N3 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 cxb4 h4 bxa4 c4 e5 h5 exf4 h6 d5 cxd5 gxh6 Rh4 h5 Rh1 h4 e4 Kd7 Ke2 h5 d4 f5 g4 a5 d6 f3+ Kd2 f2 e5 h3 d5 h4 Ne2 b3 Nf4 h2 Bg2 f1R Ke3 h3 Kd3 b2 Bd2 Qe8 Be3 Ra7 Nc3 b1R Qd2 Nf6 Nh5 f4 Ra3 f3 Nf4 f2 Nb5 Bb7 Rc3 Bc6 Qe1 Nh5 Kc2 Qg6+ Nd3 Qg7 Bf4 Ng3 e6+ Kd8 d7 Ne2 Kd2 Bc5 Nd6 Rb3 Bf3 Nc1 Rc4 Ra6 e7+ Kc7 e8Q Ra3 d8R Ba7 Q8e4 Rb6 Bd1 Nd7 Nb7+ Qe5 Bb3 Rg1 Rf8 f1R Bg3 Rg8 Rf2 Rc8 Q1e3 Nf8 d6+ Kd7 Re2 Rf7 Bf4 Rg3 Ne1 Re7 Rf1 h1R Rf3 h2 Qf2 Rf1 Rfc3 h1R Qfe3 Rh6 Rh2 Ke6 d7 Reh7 Qg1 Rd3+ Kc2 Rd6 d8R Rf3 Bg3 Rf5 Rf2 Ke7 Bh2 Rg5 Qg3 Rd3 Rd6 Ke8 Rd5 Rd7 Rg2 Re3 Rd1 Red3 Re2 R3d5 Rdd4 Rdh7 Kd2 Kd7 Ke3 Re7 Rec2 Kc7 Kd2 Red7 Ke3 Na2 Kd3 Nc1+
Bk1Nb3/q3q1rb/3rR1r1/3NBn1n/5Q1p/1nnQ1PR1/1QpbQK2/8 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 dxc4 Rh3 f5 Rh1 b5 axb5 axb4 Qf3 fxe4 Qg4 Bf5 Qd1 Bc8 d4 Kd7 g4 h5 b6 e5 d5 c5 d6 h3 b7 e3 g5 h4 g6 h2 g7 b3 Be2 e4 Bh5 e2 Ra7 c3 Ra1 c2 Ra6 b2 Bf4 c1N Ra1 c4 Qd4 c3 Na3 b1N Nc2 Qc7 Bh6 Ra6 Na3 c2 Qe3 Ne7 g8Q Rh7 Qc4 Nb3 Qf4 Rg7 Nh3 Nf5 Rg1 h1B Ng5 Nc3 Nb1 Qc5 Bf7 Qa7 Ne6 Be7 Ra5 Bg5 Rg3 Bf3 Ra2 Bh5 f3 Rb6 Kf2 e1R Ra3 Rd1 Ra6 Rg1 Bg8 Be8 Nd8 Rd1 Bd5 e3+ Kg2 e2 Kf2 Rg1 Be4 Rg6 Bg7 Bh6 Be5 Rg7 Rh3 R1g6 Rg3 e1Q+ Kg2 Nc6 b8Q Nb4 Ba8 Nbd5 Qe2 Rc6 Qbb4 Nf6 Qa3 Nh5 Qb2 Bb7 Rb6 Kc8 Ra6 Na2 Nc3 Kb8 d7+ Rcd6 Nd5 Qb4 Rb6 Nc3 Kf2 Bg5 Qfe4 Bd2 Qf4 Qc4 Ne6 Qc6 d8Q+ Qc8 Qd7 Qd8 Qdb5 Qe7 Nd8 Bf7 Qbd3 Bg8 Qde3 Bh7 Ra6 Bc6 Qd3 Qac7 Qee2 Be8 Rc6 Rd7 Rf6 Rd6 Re6 Qa7+
rnrBq1R1/1q4Nk/1b1QQ1r1/nN2q3/rnpP2b1/6p1/Q4RBK/1Q6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f3 b4 c3 g4 Nd7 e4 f5 d4 Kf7 g5 Kg7 g6 h5 e5 c5 e6 a5 b6 c4 b5 c2 e7 f4 e8Q a4 b7 a3 b8Q a2 b6 h3 b7 h2 Ba3 c1N Qc2 h4 Qd2 h3 Qb4 Ngf6 Nc3 Nb3 Qa4 Bc5 Nge2 Na5 Ng3 Nd5 Rg1 h1Q Nh5+ Kh6 g7 h2 Bh3 Kh7 Raf1 a1R Qb3 Ba7 Be7 Ra4 Qd6 Rf8 b8Q Rh8 Q8b4 Bb6 Qf7 Nb8 Qa2 Qg8 Qbb3 Nb4 Nb5 Bf5 Qff6 Qf7 Rg4 Rc8 Qbb1 Qe8 Rg6 Bd7 Bd8 Bf5 Qfe6 Qg2+ Ke1 Qg5 Kf2 Qf6 Rg2 Qe5 Rgg1 h1R Rg6 Rh2+ Kg1 Rg2+ Kh1 Rg5 Bg2 Rg3 Kh2 Rg4 Qee7 Bd7 Qh4 Rg5 Qg3 Bg4 Rf6+ Rg6 g8Q+ Kh6 Qge6 Kh7 Bh1 Qe4 Bg2 f2 Rf8 Qb7 Re1 f1Q Ng7 Qff3 Rf1 Qe3 Rf2 Qe5 Rg8 fxg3+
R2qq2k/3Q4/2Prn3/b2prb2/1NpQ2Bq/3b1KQB/2Nb4/n1RQ1r2 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 c4 Bb7 c5 Ba6 d4 Bc8 d5 Qe7 d6 Qf6 Be3 cxd6 c6 Qd8 Bc5 dxc5 Kf2 h5 b4 a5 e4 d5 g4 f5 g5 Kf7 b6 Kg7 b5 a4 g6 h3 b7 a3 e5 h4 b6 f3 e6 h2 e7 h3 e8Q c4 Ne2 a2 Qc1 f4 Qe6 Bb4 Nd4 Nf6 Qce1 Ne8 Q1e2 Rh5 Qc2 Re5 Qef5 Nd7 b8Q Bd2 b7 Kh8 Rg1 h1Q Rg5 h2 Nb5 Nc7 Qa7 Ne6 b8Q Ndc5 N1c3 Nb3 Rc1 a1B Na2 Bac3 Qd1 Ba5 Bh3 Na1 Qd4 Ra7 Rg2 Rd7 Na3 Rd6 Nb4 Bd7 Rg1 Qe8 Nac2 Bc8 Kf1 f2 Qf7 Qe4 Qd7 h1Q Bg4 Qh4 g7+ Kg8 Rg3 Qhd8 Ra3 Kh7 g8B+ Kh8 Qbc7 Qe1+ Kg2 f1B+ Kf3 Qeh4 Bf7 Bd3 Bh3 Bb6 Ra8 Ba5 Qe7 Bd7 Bh5 Bc8 Qg5 Bd7 Qg3 Bc8 Kf2 f3 B5g4 Bd7 Kg1 f2+ Kg2 f1R Qb7 Nc5 Qc8 B7f5 Qd7 Rh1 Kf2 Ne6 Kf3 Rf1+
n6K/B5bp/r2RQ2b/1p3q2/2QP1r2/R4rrN/n1NN1qbk/B2n2N1 w - - 0 1 legal: proof: b4 d5 h4 a5 c4 axb4 cxd5 g5 f4 gxh4 e3 e5 a3 exf4 Bd3 Nf6 Bc4 Ng8 Ba2 b3 Qh5 bxa2 Qe2 Ra4 Qd1 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 c5+ Ke4 b5 g4 c4 a4 h3 g5 c3 g6 c2 a5 f3 a6 h2 a7 f2 g7 f1R Qe1 Nd7 Na3 Qg5 Bb2 c1N Nc2 Nh6 g8Q f5+ Kd4 f4 e4 f3 e5+ Ke7 e6 Kf6 d3 Kf5 d6 Kg4 e7 f2 e8N Kg3 Ng7 Qf5 Qee6 Nb6 d7 Ng4 d8B Bb7 Nh5+ Kg2 Bg5 Ne3 Nf4+ Kg3 Nfh3 Bg2 Qgf7 Nd1 Be3 Rg8 Qc4 Bh6 Qfe6 Raf8 a8N Rf6 Nc7 Na8 Na6 Rff8 Nc5 Rf7 Rb1 a1B Nb3 Na2 Nd2 Ra7 Bc3 Ra6 Rb3 Rg5 Ra3 Rg4+ Qe4 Rf4 Bb2 Rf3 Bc3 Bb2 Qee6 Bc1 Ba1 Bb2+ Rc3 Ba3 Rb3 Baf8 Ra3 Qg6 Ke5 Rf4 Ngf3 Qf7 Rg1 h1R Ba7 Rh2 Rh1 Rg1 d4 f1Q Ra5 Qf2 Ra3 Rf1 Nfg1+ Rf3 Nf4 Qd7 Kf6 Rh3 Rh2 Qd5 Kf7 Qf5+ Kg8 Rh4 Kh8 Rg4 Rh5 Rg7 Nfh3 Kh2 Rh4 Rgg3 Rh5 Re1 Rg5 Re4 Rg7 Reg4 Rd7 Rgf4 Rd6 Bfg7+
rQN3RR/b1pBpR2/Pb1n3R/2qN4/1Q3nb1/K1nkB3/1br1r3/7n w - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a5 Qc2 axb4 Qb3 Ra5 Qd1 Ra8 e4 fxe4 g4 h5 d3 exd3 Bg2 hxg4 Bh3 Rh5 Bf1 Rh8 Kd2 Kf7 a4 Kg6 h4 Kf5 f4 Ke4 h5 b5 d6 g5 a5 b3 Kc3 d2 Kb4 b2 d7 g3 f5 g4 a6 g2 f6 g3 h6 Bg7 h7 Nc6+ Kb3 b4 f7 Nh6 f8Q Ne5 Qf2 Ng6 Rh5 Nf5 Ne2 g1B Qf4+ Kd3 Rg5 g2 Na3 b1R+ Ka2 Bb6 Qe1 g1B Bh3 d1N Nc3 Nf2 Nab5 b3+ Ka3 b2 Rh5 Nh1 Rh6 Nd6 Be3 Rc1 Qf8 Rc2 Nd5 Nf4 Na7 Rg8 h8R b1N+ Ka4 Qe8 Qb4 Qh5 d8R Nc3+ Ka3 Bg4 Nc8 Qe5 Rf1 Qf5 Nf6 Qc5 Nd5 Be5 Rf2 Rg6 Qg8 Re6 Rf8 Bg7 Rg2 Ba7 Rf7 Re5 Bf2 Ree2 Be3 Nce4 Rg3 Ba1 Qe8 Nc3 Rg2 Bh5 Bd7 Bf2 Rgg8 Bg4 Qf8 Qb5 Bd2 Bfb6 Be3 Qc5 Qd8 Nde4 Nd6 Ba5 Qb8 B5b6 Nc8 Nd6 Ba4 Nde4 Be8 Nd6 Bd7 Bb2+
Q5b1/1B6/BnnN1n1k/1R5n/qbR2PQK/3pr2b/1qBp3b/2BN1r2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 f4 Kf7 Kf2 Kg7 g4 h5 c4 e5 g5 d5 g6 h3 Kg3 e3 b6 e2 b7 e1B+ Kh2 e4 c5 h4 c6 b3 c7 e3 Qf3 b2 Bd2 d3 Ra7 e2 Bc3+ d4 Bg2 d2 Ra1 Qf6 Ra4 d3 Na3 b1N Re4 Bb4 Qg4 Nc6 b8Q Kh6 Bb2 Nc3 g7 Na4 Qb7 Nb6 Bc1 Qb2 Nc4 Nf6 g8B Ra1 Be6 Re8 Bf7 Bf5 Rd4 Re3 c8B Be6 Bg6 Bg8 Be8 Bf2 Bed7 e1Q Qa8 Qd1 Ne2 Qa4 Nd6 Rb1 Rc4 Bg3+ Kg1 Ra1 Ba6 h2+ Kf1 h3 Nc3 Rb1 Nd1 Ra1 Rg1 h1B Bd5 Bh2 Kf2 Rb1 Bdc8 Bf3 Bcb7 Bg2 Re1 Rg3 Re5 Re3 Bf3 Qaa1 Nc3 Bg1+ Kg3 h2 Kh4 h1N Rb5 Bh2 Bd1 Ng3 Bb3 Qa4 Bc2 Qba3 Bb2 Rf1 Nd1 Bh3 Bc1 Ngh5 Re4 Qa1 Rc4 Qb2
BRr1Q3/3R2b1/2q2b2/p2RrN2/1R1Kn3/1r2nnnP/1r3q1p/1QN1B1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Na3 h3 Nf3 h2 Nb1 exf6 Ng1 f5 Ra2 f4 Ra3 Na6 Ra1 Nb8 e3 h5 Qg4 h4 Bd3 h3 Qd1 Ba6 Ne2 Bc4 Rf1 h1N Rf2 h2 Nec3 Be6 Ne2 Bh3 gxh3 Ba3 Ng3 Bc5 Ne2 Bf8 Kd2 Ke7 c4 Kd6 b4 Ke5 b5 f5 e4 a5 c5 d5 c6 a3 c7 a2 c8Q f3 b6 f4 b7 Nf6 Qf1 Qc7 Qd8 Qc6 Ng3 Rh5 Ba3 Nbd7 b8R Bg7 Bc4 d3 Kc3 d2 Qe1 d1N+ Kd3 d4 Bd5 Ne3 Ne2 Ng3 Rb3 Rc8 Rf1 f2 Bc1 f3 Bd2 Rg5 Nc1 Kf4 e5 Nfe4 e6 Re5 Rg1 f1R e7 f2 e8R Kf3 Na3 Bf6 Rh1 Kg2 Nc4 Rg1 Rab1 a1B Rb7 f1R R1b6 Rf3 Nd6 Rgf1 Rb3 R1f2 R3b4 Bg7 Bc3 Rb2 Qd1 Bf6 Be1 Bg7 Rf1 Bf6 Rf2+ Kg1 Rd2 Re7 Rb8 Bg7 Qa4 Ra2 Qb5 Qa6 Rb6 Rf1 Ra4 Nd1 Nf5 Rf3+ Ne3 Bb2 Bc6 Ne5+ Kc2 d3+ Kb3 Re6 Rb8 Bd4 Bb7 Qc6 Nf5 Re3 Qbb6 Nf3 Re7 Bdf6 Ba8 Re5 Qe8 Rc2 Rd7 Ra2 Rc2 d2+ Rc3 Rc2 Rad4 Rd3 R4d5+ Ne3 Qb7 Rd4 Rc4 d1Q Bb4 Qe2 Be1 Qf2 Qb6 Re2 Ra4 Nc5+ Kc3 Rb4 Qb5 Rb1 Qd3 Rb5 Qb1 Reb2 Rc4 Nce4+ Kd3 Nh4 Kd4 R5b3 Rcb4 Nf3#
rB3R2/b1BN4/Q1p5/nb6/1B1RbN2/1rQPn1q1/Kpq4k/b1B1r2r w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxg4 b4 d5 exd5 h5 c5 axb4 c6 h4 Qc2 h3 Bg2 hxg2 Nf3 g1Q+ Ke2 Qg2 Ng1 Qe4+ Kf1 Qe2+ Kg2 Qd1 Qa4 Nxc6 Qc2 Nb8 f4 Kf7 Kf2 Kf6 Ke3 e5 Kd3 Kf5 Kc4+ e4 Kb3 b5 a4 g5 h4 g3 a5 Kg4 d6 e3 h5 e2 f5 e1R d7 g2 a6 Kg3 h6 g4 f6 Bg7 f7 Ne7 f8B Nbc6 a7 Ba6 h7 Na5+ Ka2 b3+ Ka3 c6 Nf3 g1R Qc5 b2 Ne5 b4+ Ka2 Qb8 d8B Nf5 Nc3 Ne3 Bc7 Qc2 Nd5 Bb5 Rh4 Rh1 Nf4 Rg8 h8B b3+ Ka3 b1B Qc3 Bf6 Bb4 Rd8 Ra2 Rd3 Nd7 Bd4 Bhe5 Qg8 Qc5 Ba1 Qc3 b2 Bb8 Qg6 Bec7 Qg5 Rh8 Qe5 Rf8 Kh2 Bcd6 g3 Bbc7 Rc8 a8Q g2 Qa6 Ra8 Bb8 Qg7 Be5 g1B Bec7 Qg3 Qb3 Qc5 Qc3 Nac4+ Kb3 Qf5 Ra4 Na5+ Ka3 Bc2 Ka2 Qfg6 Qc5 Rb3 Qc3 Be4 d3 Qh5 Be7 Qe2 Rd4 Qc2 Bb4 Nd5 Rc4 Ba7 Rd4 Ne3
Q2R1Q2/1q3Qr1/5R2/p1KN1n1b/2nPB3/q1n3bQ/2NpbbB1/b1k4q w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 e3 bxa4 h5 d5 h6 d3 Nc3 d2+ Ke2 gxh6 Nb1 h5 Rh2 h4 Rh3 Bf5 Rh1 Bc8 Kd3 a5 b3 d4 Ba3 f6 Bb2 Ra7 Kc4 d3 Be5 Rd7 Kc3 Rd4 exd4 fxe5 Kc4 Kd7 f4 Kc6 g4 h5 f5 e4 f6 e5 f7 h3 b4 h2 c3 a3 g5 a2 g6 h4 g7 h3 Qg4 d1N Qg3 e3 Qg2+ e4 Qd2 e2 Qe1 d2 Bg2 Qb6 Qf2 e1Q Na3 Rh7 Qe3 Bg4 Nc2 Bh5 Qg3 Bd6 f8Q Nh6 g8Q Nf5 Qff7 Nd7 Qe3 Rg7 Qa8+ Qb7 Ne2 Bg3 b5+ Kb6 Qf3 e3 Nf4 e2 Rf1 h1B Rb1 a1B Rb4 Kc7 b6+ Kd6 Nd5 h2 Qg4 Bf2 Qh3 Ne5+ Kb5 Bg3 c4 Bf2 Be4 B1f3 Rb2 h1Q Qaf8+ Qe7 b7 Nc3+ Kb6 Qb1 b8Q+ Kd7 c5 e1B Qa8 Be2 c6+ Kd6 c7 Nc4+ Ka6 Qa2 c8B Qa3 Rb8 Bg3 Rf3 Bef2 Be6 Nfe3 Rf6 Nf5 Qa7 Kc6 Rd8 Qeb4 Qb8 Qbb3 Ka7 Qbb4 Qa8+ Kb5 Kb7 Ka4+ Kc6 Kb3 Bc8 Qb8 Bb7 Kb2 Bg2 Qb3 Kc5 Kc1 Ndb4 Qa4 Bbe4 Qb7 Nd5 Qa3+
n1N1q3/p1r1Qq2/3n3n/1Q1bP1rq/n6p/k1NKrQ1Q/1RB2B2/1n1R4 w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 a4 b5 g3 bxa4 Be3 c5 Bd2 cxd4 Bc1 Bh6 Rh2 g4 Rh1 Bg5 hxg5 fxg3 Kd2 Ke7 b4 Kd6 c4 h5 e4 f5 b5 Kc5 g6 Kb4 c5 d5 e5 d3 g7 g2 c6 f4 b6 f3 c7 f2 b7 d4 Bb2 g3 Na3 Be6 c8Q Na6 Ra2 Qe8 Qc7 Bd5 Qb1 Rc8 Qc6 Rc7 Rh4 Nh6 Nb5 a3 Be2 f1Q g8Q Qff7 Nf3 g1R b8Q g2 Ra1 a2 Re4 h4 Qbc2 Re1 Qbb7 g1Q Qg4 Rg8 Qg3 Rg5 Rc1 a1N Qf2 Qg4 Bd1 Qgh5 Ng1 Re3 Qb1 Nc2 Qf5 Na3 Nd6+ Nb5 Ne2 Reg3 Bc2 Re3 Ba1+ Ka3 Nc8 Nd6 Rf4 Rd7 Qe6 Nc7 Rf2 Na8 Qh3 Re7 Q1b5 Rc7 Kd1 d2 Rh2 Bc4 Qcf3 Bd5 Nc3 Qhg6 Bb3 Qh5 Kc2 d1N Kd2 d3 Bc2 Nb2 Rd1 Na4 Rf2 Rc5 Qe7 Rc6 Ne2 Rc5 Bd4 Rc7 Bb6 Nc5 Kc3 d2+ Kd4 Na4 Nc3 Re2 Kd3 Re4 Rb1 d1N Rb2 Re1 Rd2 Re4 Bf2 Re2 Ne4 Ndc3 Rd1 Nb1 Nc3 Re3+
k1q3r1/5PR1/1B2rqn1/1pQ1RNNQ/bnn1K1B1/n3R3/2p3r1/1q4Rr w - - 0 1 legal: proof: b4 a5 h4 b5 e4 g5 a4 gxh4 c4 f5 Ne2 fxe4 Ng1 Bh6 c5 Be3 c6 axb4 a5 Bb6 axb6 dxc6 Qg4 c5 Qd1 c4 Ke2 Kd7 Ke3 Kc6 d4 Kb7 f4 e5 g4 h5 d5 c5 f5 c3 d6 c2 f6 b3 g5 h3 d7 b2 g6 c4 g7 c3 f7 h2 Bd2 c1Q Nf3 h4 Ng5 h3 Nf3 Qf6 d8R Na6 Bc4 Ne7 g8R Nb4 Bf1 Bf5 Rgf8 Ra2 Bg2 Ng6 Qc2 Rg8 Rg1 h1Q Nh4 h2 Qd1 Bg4 Qc2 Bd1 Re1 Qhf1 Bf3 h1R Rfe8 Qh3 Re2 Qc8 Nf5 Kb8 Bg4 Ka8 Na3 b1N Nc4 Na3 Ncd6 Qb1 b7+ Ka7 Qc1 Ba4 Be1 Rd2 Bf2 c2 Qd1 Kb8 Re1 Ka7 Bg1 Rg2 b8Q+ Ka6 Qa8+ Kb6 Qc6+ Ka7 Re2 Kb8 Qc5 Ka8 Kd2 e3+ Kc3 e4+ Re5 Qh4 Kd4 Qf6 Re1 e2 Bf2 e3 Ne4 Bb3 Ng5 Ba4 Rg1 e1R Re8 e2 Ke4 Rf1 Be3 e1N Qf3 Rh6 Qh3 Ned3 Qh5 Nb2 Bd4 Qa2 Re1 Qb1 Re3 Nbc4 Rd8 Rgh8 Rg8 Rd1 Rg7 Rg8 Qc7 Rf1 Bb6 Rd1 Qc5 Rd6 Qh3 Re6 Qf3 Rh1 Qh3 Rc6 Qh5 Re6
4nb2/Q1nb1ppq/3P2k1/b1r2pbN/1B1RN1K1/Nb4Q1/2r1R3/Nn3B2 w - - 0 1 legal: proof: e4 b5 b4 h5 a4 d5 g3 dxe4 g4 hxg4 axb5 c5 Bc4 cxb4 Be2 Nf6 Bf1 Ng8 Ke2 a5 d4 e6 h4 e3 c4 a4 b6 g3 Kf3 a3 b7 g2 d5 a2 h5 b3 h6 b2 c5 e2 h7 e1B c6 Ke7 c7 Kf6 Qb3 Bfb4 Rh2 Kg6 Na3 b1B Bd2 Na6 b8Q Bc2 Ne2 g1N+ Kg4 Bd7 c8N Nc7 Rd1 a1B Qa7 Nf3 Nd6 Rc8 Ne4 Bf6 Nc1 Bf8 d6 Bg5 Bb4 Nd2 Qg3 Nb1 Rd4 Bb3 f3 Qe7 Re2 Qf6 Bc5 Ba5 Bb4 Bba4 Nb3 Qe7 Na1 Nf6+ Kh3 Nfe8 Kg4 Rg8 f4 Bb3 h8N+ Kh7 Ng6 Qf6 Kh5 Qf5 Nh4 Qg6+ Kg4 Qh6 Ng2 Kg6 Ne3 Qh7 Nd5 Nb5 Rdd2 Rc5 Rd4 Nbc7 Ndf6 Rh8 Re1 Qg8 Re3 Rh2 Nh5 Rhc2 Re2 Qh7 f5+ exf5+
Qr2n1n1/nPQR1bBR/1bN4p/K2n1r2/3Q4/p1N3nk/1q2p2B/1Q1r4 w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 a4 cxd4 c3 g5 Bc4 gxh4 Bb3 b5 axb5 d3 Bc2 dxc2 Kd2 Kf7 g4 Kf6 f4 e5 b4 a5 g5+ Kf5 b6 d5 b5 h3 b7 h2 b6 h6 g6 d4 c4 a4 c5 a3 c6 e3+ Kd3 e4+ Kc4 e2 Kb5 Kg4 g7 d3 c7 e3 f5 d2 f6 Qd4 f7 Be6 c8Q Nc6 b8Q Bc5 f8B Na7+ Ka6 Qb2 Qbc7 Rb8 Q8b7 Bf7 Nf3 e1N Rf1 h1N Nd4+ e2 Nc6 Ng3 Nc3 Ng2 Ka5 Nh4 Qa8 Rh7 b7 Kh3 Qe1 d1N Bf4 Ne3 Rd1 c1R Rd7 Ra1 Qb1 Nhf5 Rfd1 Nd6 Rd2 Nge4 Bh2 Ne8 Re7 Ng3 Rdd7 Nb5 Qa7 Nd5 Qab6 Na7 Qb4 Ngf6 g8Q Rg7 Qbf4 Rg5 Bg7 Rf5 Qf8 Ng8 Qd4 Bg6 Bh8 Bh5 Rh7 Bg6 Bg7 Bf7 Qbe4 Rd1 Qb1 Rc8 Qb8 Rd8 Qa8 Rc8 Qd6 Rb8 Qc7 Bb6+
br1Bk3/2n3bR/N2Kq3/r6N/Pn2pB1R/1Q2Rppr/5b1R/1n4Qn w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g3 axb4 g4 hxg4 f4 e6 f5 exf5 e4 Ne7 e5 Ng8 Bg2 Bd6 Bf3 Bf8 Be4 fxe4 Kf2 b5 Kg3 g5 h4 c5 a4 f5 d4 c4 h5 b3 h6 b2 d6 c3 h7 b4 e6 c2 d5 b3 e7 Na6 Bf4 c1N Ra3 Nc7 Rh2 Qd7 Ne2 Bg7 Qg1 Nf6 Nbc3 b1R Na2 b2 Nb4 Bb7 Na6 Na2 Re3 Qe6 Rh4 Nb4 d7+ Kf7 d8B Ke8 d6 Nh5+ Kf2 Rb8 Ng3 Ba8 Ke2 Rc1 Kf2 b1N d7+ Kf7 e8R Rc5 Kg2 Ra5 Re7+ Kf8 Bd6 f4 Be5 Nf6 Nh5 g3 Rh2 Ng4 Rh4 Rg8 h8R f3+ Kh3 g2 Kg3 Nf2 Bf4 g4 Rh6 Bf6 Reh7 Rg6 Be5 Bg7 Kf4 g3 Rh2 Nh1 Rh4 Qb6 Kf5 Bd5 Bf4 Rf6+ Ke5 Ba8+ Nc5 Qa6 Rh2 Qc4 Rh4 Rf5+ Kd6 Qg8 Na6 Rfb5 Qd1 g1B Qb3 Bf2 Rh2 Ba1 Ng7 Qc4 Be7+ Kf7 d8Q Nd3 Kd7 Nb4 Qh8 Rh5 Bd8 Nc3 Kd6 Rh3 Rh4 Bb2 R7h6 Ba1 Nh5 Bb2 Qg7+ Ke8 Rh7 Ba1 Qd1 Qb3 Qg1 Nb1 Qb2 Qc4 Qc2 Bg7 Qb3 Qe6+
1q1b4/6N1/bp1B1bQR/2r2NK1/5BQr/bP1NNq1p/pn2k3/Rn1n4 w - - 0 1 illegal: No possible last move, all moves rejected
R2rb3/pK2P3/R5Rp/bR1nnN2/B3Q1Q1/1p1nNrn1/kB6/qqr5 w - - 0 1 legal: proof: b4 d5 a4 b5 h4 g5 f4 gxh4 c4 e5 cxd5 exf4 a5 Bxb4 a6 Bf8 Kf2 b4 Ke1 b3 Nf3 Bxa6 Ng1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 c5 g5 f3 d6 f5+ Kd5 f4 e4 f2 d7 h3 e5 c4 g6 c3 g7 f3 e6 h2 Ne2 c2 Na3 h6 Ng3 Qa5+ Bb5 f1Q d8R f2 Nf5 Nd7 Kc6 Ngf6 g8R Nd5 Bb2 c1N Ba4 Nd3 Qg4 Qb1 Rg6 f1N Nc4 Ng3 Nce3 Be7 Rc1 h1R Rc5 Rf8 Re8 Bd8 e7 Rc1 Ra2 N5f4 d5 Ba6 d6 Bb5+ Kb7 N7e5 d7 Rf6 Qf3 Nd5 Rh8 Bc7 d8Q Be8 Qd7 Rd8 Qe4+ Nc4 Nd6 Rf3 Qdg4 Bb6 Ndf5 Bc7 Ba3+ Kc3 Rb5 Nce5 Nc4 Bb6 Bb2+ Kc2 Ra3 Qe1 Rf8 Qa1 Nce3+ Kb1 Rff6 Bc7 Rc6 Bb6 Rc8 Ba5 Ra8 Rc4 Rbb6 Bc3 Bd7 Bb4 Raa6 Ba5 Rb4 Ka2 Ba4 Qeb1 Rb5 Rc1
5B2/r3bk1n/2qpR3/4Rb1p/R1Nr1RP1/6Q1/1BQp1K1r/1rb1Nb1n w - - 0 1 illegal: No possible last move, all moves rejected
k3qBnr/br2R1rn/1ppp2r1/Q2n4/1B1P4/1R2R2b/N2R1KnN/1Q6 w - - 0 1 legal: proof: g4 g5 b4 h5 e4 a5 f4 axb4 c4 bxc3 Be2 f5 exf5 gxf4 g5 Ra3 Bf3 Ra8 Bg4 hxg4 h4 e5 d4 f3 a4 e4 h5 g3 f6 f2+ Ke2 f1N a5 c2 g6 e3 a6 c6 h6 g2 g7 Bc5 h7 d6 f7+ Kd7 f8B Kc7 a7 Bh3 Nc3 Nd7 Nf3 g1R Rh2 Qe8 Na2 Rg6 Ba3 c1R Rb1 Ndf6 Bb4 Rb8 a8Q Ba7 Rb3 b6 Rf2 Rc5 Qb1 Rcg5 Nh2 Rb7 Kf3 Rg1 Rd2 e2 Kf2 e1N Re3 Ng2 Rb3 Bb8 Qa5 Ba7 Re3 Kb8 Rb3 Nh6 g8R Nfe3 Rg7 Ned5 Re7 Ka8 Ree3 Rhg8 h8R Nh7 Re7 R8g7 Ree3 Ng8 Re7 Nhf6 Rh5 Nh7 Rg5 Re1 Rgg3 Re4 Rge3 Rh4 Nc1 Nhf6 Na2 Rh8 R3e5 Nh7 Re1 Bf5 R1e3 Bh3
K3n1k1/p4rq1/RBr5/1qPBQnb1/np1N3N/pQ6/1Q3n1Q/1q2R1n1 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 h5 bxa4 h6 gxh6 Nf3 h5 Ng1 h4 b4 c5 c4 cxb4 c5 Ba6 d3 Bc4 dxc4 Be7 Qd3 Bd6 Qd1 Bf8 Kf2 h5 Kf3 f5 g4 Kf7 e4 d5 e5 h3 c6 a3 c5 h2 c7 h4 c8Q h3 g5 d4 Qd2 d3 Nc3 Qf6 Qf2 d2 Qe2 d1Q Ne4 Be7 Ng3 Nd7 Bd2 Qg7 Qc7 Nb6 Bg2 Nf6 g6+ Kg8 e6 Rh7 Qb8+ Bd8 e7 Ne8 Qd6 Qc2 Re1 Qb1 Be3 Rc8 Qb2 Rc7 N3e2 Na4 Nd4 Rc6 Qb8 Qe5 Bf2 Rf7 Bg3 Qh8 g7 Qh7 Ke2 f3+ Ke3 f2 Bd5 f1Q Ngf3 Qb5 Nh4 f4+ Kf3 Qh6 Re6 Qg5 Rhe1 h1N Qc7 h2 Qb8 Qd1+ Ke4 f3 Bc7 f2 Bb6 f1N Rd6 Qg1 Ke5 Qdd3 Ke6 Nfg3 Kd7 Ne2 Re6 Nc7 Kc8 Nf2 Kb7 Ne8 Ka8 h1N Qh2 Nhg3 Rd6 Nf5 Rf6 Qb1 Rg6 Ned6 e8Q+ Kh7 Qee5 Ne8 Rf6 Qg6 Re6 Ng1 Rd6 Bg5 g8Q+ Kh6 Rd7 Qg7 Rd6+ Rf6 Qf7 Kh7 Qfe6 Ne7 Qeh3 Rf7 Qhb3 Nf5 Ba5 Rcc7 Ra6 Rc6 Bb6 Kg8
r1R3B1/p1RpR1n1/bbB2N1Q/R1q4b/P1bq2Np/2Q2nK1/q7/1b4k1 w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 b4 b5 h5 c5 Bf4 cxb4 Be3 Na6 Bc1 Rb8 Rh4 Rb6 Rh1 Rg6 hxg6 f5 Bd2 fxg4 Be3 Nc7 Bc1 Na6 a4 Ke7 c4 Kd6 e4 Ke5 g7 h5 f3 b3 Kf2 b2 c5 b4 c6 b3 c7 g3+ Kg2 h4 Bd2 d3 f4+ Kd4 e5 h3+ Kf3 h2 e6 g2 f5 Nb8 f6 Ne7 f7 Nbc6 Be1 d2 Qe2 d1B Bh4 Ba6 Nd2 b1Q Ne4 b2 Kg3 Qa2 Qc4+ Ke3 Rb1 Nd4 Nf6 Qc8 Nh3 g1Q+ Bg2 Be2 Rf1 b1B Rf5 Qd1 Bd5 Nf3 Nf2 Bf1 Be4 Qd4 Ra5 Bfd3 Rc1 Nf5+ Kh3 Bb4 f8Q Bc5 e7 Bb6 e8R Ke2 Rc2+ Kf1 Re7 Kg1 N2g4 Rg8 Qb4 Be2 Rc6 Bec4 Qc3 Rh8 Qe8 Rf8 g8B Ng7 Qg6 Re8 Kg3 Rd8 Be6 Rh8 Qh6 Qf8 Rf7 Qfc5 Re7 Ra8 c8R h1B Ne5 Nh2 Bg8 Bf3 R6c7 Bh5 Bc6 Nf3 Neg4 gxh4+
1r4N1/2KQ3B/2p2R2/knP4n/2Qr1nn1/b2p3N/prqR3Q/q3qB1Q w - - 0 1 legal: proof: f4 b5 e4 g5 g4 e5 a4 bxa4 d4 f6 f5 exd4 Bf4 gxf4 h3 Ba6 e5 Be2 g5 Bg4 hxg4 fxe5 Qd2 e4 Qd3 Be7 Qd1 Bf8 Kf2 d5 b4 Kd7 c4 Kc6 g6 Kb6 g5 a5 f6 h5 b5 e3+ Kf3 e2 f7 e1Q g7 a3 g6 a4 Nd2 d3 Rc1 c6 Rc3 a2 Ra3 a1Q Rh3 d4 Qb3 h4 Rg3 h3 Qc2 h2 Nh3 h1N Ne4 d2 Rg2 d1R Rd2 Nf2 Nf6 Ka5 b6 Na6 b7 Rb8 Qd3 Nh6 g8Q Nhg4 g7 Nc7 Rb3 Be7 f8Q Ba3 c5 Nb5 Qgc4 Qd7 g8B Qh7 Qf5 Nd3 Qd7 Rb1 Qfe7 Rb2 Qe4 Qg6 Rc3 Rh4 Bh7 Qf5 Rcc2 Qg6 Rf2 Qf5 Ng8 Qg6 Kg2 f3+ Kg3 Nf4 Rd2 Qf5 Qed5 Qc2 Qh5 d3 Qh6 Bb4 Qh5 a3 Qh6 Rf8 b8Q a2 Qbd6 Ba3 Qe5 Ng6 Qh8 Rb8 Qh5 Nf8 Kf4 Ne6+ Kf5 Nf4 Qe5 Nd5 Ke6 Nf4+ Ke7 Ne2 Qh2 Nf4+ Rfe2 f2 Re6 Qec1 Rf6 Qe1+ Be2 f1N Qh1 Nd4 Kd6 Ng3 Qe5 Ngh5 Bf1 Nfe2 Qeh2 Nef4 Qc8 Nb5+ Kd7 Nc3 Kc7 Nb5+ Kd8 Nf2 Re2 Nd5 Rd2 Rd4 Kd7 Ng4 Kd8 Rb7 Qd7 Ndf4 Kc8 Nd6+ Kd8 Rb8+ Kc7 Nb5+
N7/R1b1b3/Rb1qK3/1bqR4/rknBRP1p/2bBN2Q/np1bp3/6Q1 w - - 0 1 legal: proof: g4 b5 h4 f5 b4 d5 f4 Qd6 c4 dxc4 h5 a6 h6 Qxh6 Bb2 Qh2 Ba3 Ra7 Bc1 Rb7 Na3 Rb6 Nb1 Rf6 e3 a5 e4 axb4 Qb3 fxe4 Qd1 Rf5 gxf5 Ba6 Bd3 Bb7 Bf1 Bc8 a4 Kd7 d4 Kc6 a5 g5 d5+ Kc5 a6 h5 a7 e5 a8R c3 d6 b3 d7 g4 d8R c2 f6 h4 f7 b2 Bd2 c1B R1a6 g3 Ra2 g2 Ke2 e3 Kd3 b4 Ke4 b3 Rd6 e2 Rda6 e1B Nf3 g1B Nd4 Nd7 Kf5 e4 Re6 e3 Ne2 Ne7+ Kg5 Qf2 Rg6 Ba6 Rh2 Nc6 Kf5 Bb5 Ke6 Nb4 Rh1 Nb6 Bg2 Nc4 Ra1 Na2 Rf6 Be7 Na3 b1Q f8Q b2 Bf1 Qd3 Re8 Qd8 Bc3 Bcd2 Bd4+ Kb4 Ng3 c5 Nf5 Bc3 Bd3 e2 Ne3 Rh5 Qg8 Rd5 Rf5 Rd7 Qg2 Ra7 Rd5 Ra4 Qh3 Bed2 Bh8 Be5 Bf6 Bc7 Bd4 Bc3 Qc1 Qg2 Qf1 Qg5 Qc1 Bf2 Qg1 Na5 Ng2 c4 Bh8 Nc1 Re5 Bf6 Qgh2 Ba7 Re4 Qc5 Re7 Bd6 Bc2 Bde5 Rd7 Be7 Rhd1 Beb8 Rb7 Bbd6 Rd5 Bc7 Nb1 Ra2 Nd2 Ra3 Qg1 Ra2 Ne3 Ra3 Rd6 Ra2 Ra6 Ra4 Rb1 Na2 Rd1 Bd4 Bf6 c3 Ndc4 Bde5 Nb6+ Nc4 Na8 Bab6 Bb1 c2 Rd5 c1B Rba7 Bd2 Bd3 Bec3 Bd4 Qdd6+
bBnbr2q/1br3B1/B1p1R1QN/pN4Rr/bb1K4/3PB3/Q1p5/5r1k w - - 0 1 legal: proof: f4 d5 c4 dxc4 h4 b5 a4 bxa4 h5 e5 d3 exf4 h6 Nc6 e3 Nd4 exd4 gxh6 Bd2 h5 Bc1 h4 Kd2 Ke7 Kc3 Kf6 b4 Kf5 d5 a5 d6 h5 d7 f3 g3 Kg4 b5 f5 b6 a3 b7 a2 b8B h3 Be2 f4 Kd4 c3 Bf1 c2 Kc3 h4 Nd2 h2 Be2 h3 Nb3 Bb4+ Kd4 Rh5 Be3 Ne7 Qb1 Bb7 Qb2 Qc8 Re1 a1B d8B Bc6 Bf1 f2 Bg2 f1R Ne2 f3 Rg1 h1B Nc3 f2 Qa2 Ba4 Bb7 h2 Ba6 Kh3 g4 Bb7 g5 h1B g6 Kh2 g7 Bhc6 Rg2+ Kh1 g8Q Qh3 Qg6 Nc8 Rg5 Ra7 Re2 Re1 Bf6 f1R Bh8 Ba8 Bg7 Bcb7 Bc1 c6 Re6 Bb2 Be3 B2a3 Nb5 Be7 Ke5 Bd8 N3d4 Bb4 Nf5 Re2 Kd4 Ree1 Bf2 Re5 Nh6 Qh2 Rd6 Re8 Be3 Qe5+ Kc4 Qf6 Re6 Qf8 Kd4 Qg8 Na3 Qh8 Nb5 Nb6 Rf6 Bc8 Bg1 Rc7 Re6 Bcb7 Be3 Nc8
1r3qBN/2bq2rr/pk3r2/2N2nrB/B5BP/RpQ4p/n1r2R2/5K1Q w - - 0 1 illegal: No proof kernel
3r4/p1RNQrK1/1q2R3/bpRpb3/Bn3b1n/b2NQP2/1B2R1p1/5n1k w - - 0 1 legal: proof: b4 f5 d4 h5 g4 hxg4 e4 fxe4 a4 c5 a5 cxd4 a6 Qb6 Bc4 Qb5 Bd3 b6 Bf1 Bb7 axb7 Qxb4+ Bd2 Qb3 Bc1 Qb2 Ke2 Kf7 h4 Kf6 f3 Kf5 h5 d5 h6 g5 h7 e5 Bh3 d3+ Ke3 d2 c4 Na6 b8R Nh6 c5 Nb4 Bg2 g3 c6 g4 Bh3 g2 Re8 Rd8 Qc2 d1N+ Kd2 Kf4 c7 Kg3 c8R Nf5 Ra6 Nh4 Nc3 Ne3 Rc7 Nf1+ Ke2 e3 Qd2 e4 Na4 Rg8 h8Q Rg6 Qh7 Rf6 Qe7 b5 Nb6 Qd4 Nd7 Qb6 Bb2 Bh6 Rh2 Bf4 Ra1 Be5 Rac1 Bf4 R1c5 Be5 Kd1 e2+ Kc1 e1B Ne2+ Kf2 Nf4+ Kg1 Nd3 g3 Bf5 e3 Bh7 e2 Qe3+ Bf2 Be4 e1B Kb1 Na6 Kc2 Ba5 Bg6 Bf4 Bh7 Nb4+ Kc3 Nf5 Rh6 Nh4 Kd4 Kh1 Be4 g1B Bf5 Rf7 Re6 g2 Bh7 Bgh2 Bf5 B4g3 Bg6 Rf4+ Ke5 Be1 Bf5 Bd2 Kf6 Bc1 Be5 Bb2 Kg7 Ba3 Bh7 Rf6 Bb2 Rh6 Ne1 Rf6 Bc2 Be5 Ba4 Bhf4 Nd3 Rc8 Rc2 Rb8 Rec8 Ra8 Re2 Rb8 Rc5 Ra8 R8c6 Rd8 Rc7 Rf7+
N1b4n/p1RPR2R/kb1p4/N1nB4/2r1bp2/5rQ1/2pnQ1b1/1BRrK3 w - - 0 1 illegal: No possible last move
8/1pq2nQ1/K1Br2Np/1Q2N1P1/1Bbnbb1R/pb2R1N1/p4p1p/N5k1 w - - 0 1 illegal: Other
n1B2b2/B2BRn2/KQn1Nrb1/1q1b1b2/1b2R2r/2qq1Q2/1bP1r3/Nk1B4 w - - 0 1 illegal: No possible last move, all moves rejected
2R1qQr1/1R1N3b/B5N1/rP2Nr2/n3K1Qr/r1Bbn1N1/4n2k/q2r1qb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 g4 Ke5 e4 d5 b4 h5 c4 f5 c5 a5 c6 a3 c7 h3 g5 f3 b5 f2 g6 f4 g7 a4 Qd2 f3 Bb2 h4 Qc1 h2 Bc3 h3 Nd2 Kf4 e5 Kg3 e6 a2 e7 a3 e8Q Bf5+ Qe4 Ne7 c8N Nbc6 g8N Ra5 Qb2 Qe8 Nh6 Rg8 Rd1 a1R Nd6 a2 Bg2 f1B+ Kc2 d3+ Kb3 d4 Kc4 f2 Re1 Nc8 Kd5 Nb6+ Kc5 Na4+ Kd5 Bg7 Re2 Bh7 Ndf3 d2 Qa3 d3 Bb2 Bd4 Nb7 d1N Nf7 d2 Qf8 Ba7 Nc5 Nd4 Re3 Be2 Qf5 f1R Nh4+ Rf3 Re7 Bb6 Qh5 Rf5+ Ne5 Bf1 Ngf3 Bd3 Ng5 Ne2 Re1 h1Q Ng6 h2 Rf7 Qf1 Qg4+ Kf2 Re7 Kg1 Nge4 h1R Ng3 Rh4 Ra7 Kh2 Nd7 Bg1 Bd4 Ndb2 Rc1 d1R Rc8 Nc4 Bc3 Ne3+ Kd6 Rh3 Bb7 Rh4 Ba6 Bc4+ Kc6 Rab1 Rb7 a1Q Bd4 Rb3 Bc3 Bd3 Kd6 Ra3 Kc6 Nc2 Kd5 Bc4+ Ke4 Ne3 Qd6 Rh3 Qf6 Rh4 Qf8 Bd3#
nR1b1rbr/R2Pq1kb/rnr1n3/5Q2/4nRq1/N2R3N/4K1B1/1r2Bn1Q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 g4 Kf7 e4 h5 e5 b5 d5 c3 g5 c4 e6+ Kg7 e7 f3 e8Q b3 a5 f2+ Ke2 b4 g6 c2 a6 b2 a7 h3 d6 h2 Ra3 h4 Nc3 b1R Bg2 f1N Bf4 c1R Be5+ Nf6 Nh3 b3 Bd4 f4 Be3 f3+ Ke1 b2 Ra4 f2+ Ke2 Nd5 Ng5 h3 Qe6 Nd7 Nf3 Qe7 Ne5 N7b6 Qd2 Nc7 Nb5 c3 Qc4 c2 Qh4 Be6 d7 Bg8 Rg1 h1N Qh5 h2 Ng4 Nhg3+ Kd3 h1N Na3 Ne2 Qd1 Nd4 Qf5 Nhg3 Bd2 Nde6 Rf4 Ne4 Qf3 Qb4 Qh3 Be7 Be1 Bd8 Ke2 Qe7 Rh1 Rc8 Qf3 Nca8 Rh3 Rc6 Rg3 Rd1 Rh3 c1Q Rg3 Nac7 a8R Rdd6 Ra7 Nca8 Rh3 Qc3 Rg3 Qb4 Rh3 Nh2 Rg3 f1R Nf2 Qa4 Nh3 Qd4 Q3h5 Qg1 Rd3 Rf3 Bf1 Qg4 Bg2 Nf1 Ng1 Ra1 Qh1 b1B Nh3 Bc2 Re3 Rdd1 Rd3 Rdb1 Nb5 Ra6 Na3 Kh6 g7 Bh7 g8R Bb3 Rf8 Kg7 Nf2 N6g5 Nh3 Bbg8 Re8 Ne6 Rf8 Bc7 Rc8 Bd8 Rb8 N6g5 Qa5 Qh4 Rg4 Rf8 Rf4 Ne6 Qf5 Qg4+
2QNBBb1/1N1n1R2/n1bP3b/5n2/krnq1bQ1/5nn1/K3n1R1/B1r2bB1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 a4 Kd7 h4 Kc6 d4 g5 Kd2 e5 Kc2 b5 Kb2 e3 f4 c3+ Ka2 c2 h5 b3+ Kb2 g3 a5 e2 f5 e1N h6 e4 h7 e3 a6 g2 a7 g4 f6 g3 f7 b4 Rh4 e2 d5+ Kb5 Be3 c1N Bb6 c5 Rh6 c4 Re6 Nf6 Qd2 Bd7 Bc5 Nc2 Qg5 e1N Bb6 Ne2 Bc7 Na3 Nd2 Bh6 f8B Nec2 Qf5 Ncd4 Bc5 Bc6 Ba5 Nfd7 Qh5 Ka4 Bab6 Na6 Qf3 Rc8 a8Q Nf5 Rd1 c3+ Ka1 c2 Re4 c1B Qg4 b2+ Ka2 Nc4 Nb3 Bcf4 Nf3 g1N Nfd4 g2 Re7 Nf3 Rf7 g1N Rd2 Neg3 Na5 N1e2 Ne6 Qh4 Bf8 b1B+ Ka1 b3 d6 Bd3 Bg1 b2+ Ka2 Qf6 Nb7 Qd4 Ned8 Rg8 h8B Rb8 Na5 Rb4 Qc8 Rg5 Nab7 Rh5 Bg2 Rh1 Bh2 Rc1 Bh1 Neg1 Rg2 Bf1 Bf6 N1e2 Bg1 Qa7 Bfd4 b1B+ Ka1 Bc2+ Ka2 B2e4 Ba1 Qd4 Rh7 Bcd5 Rf2 Bg8 Bg2 Nde5 Rf7 Ne1 Bh1 Bd5 Be4 N1f3 Rg2 Be6 Bd5 Bd7 Be6 Bb5 Bd7 Bc6 Be8 Nd7
1Rb4B/N1k1rr1q/3bq1b1/2BqR1r1/Kb4bn/NB2Prn1/B2Q4/5Qn1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 a4 d5 c4 Kd7 Kc2 g5 Kb3 b5 h4 d3 e3 f3 h5 g3 c5 d4 c6+ Kc7 a5 g4 a6 f2 h6 f4 a7 g2 h7 d2 Nh3 g1N Be2 f1R Bc4 d3 Qc2 d1B Be6 f3 Na3 f2 Bd7 g3 Bd2 g2 Bc1 d2 Nb1 Qf6 Ba3 Ne7 Ng5 Bg4 Qc1 d1Q+ Qc2 Na6 Be6 Ng6 Ra2 Qd5+ Qc4 Nh4 Rc2 Rg8 h8B Nc5+ Ka2 Ne4 Kb3 Ng3 Nf3 Rg5 Rb2 Bd6 Bg8 Qfe6 Nd4 Rb8 a8Q Rb7 Nf3 Bf8 Ne5 Bc5 Qa7 Bf8 Qd4 Bd6 Kc2 b3+ Kc3 Ra7 Bc5 Be7 Na3 b4+ Kd3 Bd6 Rb1 b2 Kc2 Rb7 Qd2 b3+ Kc3 Ra7 Kb4 Rb7+ Ka4 Be7 Ra1 b1B Qcc1 Bh7 Rb1 b2 Rh3 Bg6 Rh2 Nhf5 Rh5 Nh4 Bf7 Re1 Qc4 f1R Bg8 Rf3 Qf1 Re2 Bf7 Ref2 Bg8 Kb8 Bf7 Rd7 c7+ Kb7 Nc6 Bd6 Bb6 Re7 Na7 Bb4 Bg8 Rff7 Bc5 R2f3 Nc6 Bd7 c8B+ Kc7 Bb7 Bc8 Na7 Nh3 Ba6 g1B Bc4 Bh2 Bb3 Ng1 Rc1 b1Q Rd1 Qa1 Rb1 Qg7 Ba2 Ba5 Rb8 Bb4 Bb3 Ngf5 Ba2 Bd6 Bb3 Ng3 Ba2 Re5 Bb3 Qh7 Rf5 Re4 Re5 Ref4 Ba2 R4f5 Bb3 Rg7 Nc2 Qf6 Bf7 Rg5 Na3 Qe4 Bc2 Qa8 Bc4 Rgf7 Ba2 Qd5 Bcb3 Qfe6
1k6/r1q1bQ1K/2R3b1/q2b2N1/BN1rqnn1/2QPrrQ1/1BQR1n2/2r1q3 w - - 0 1 illegal: No possible last move, all moves rejected
3Q2r1/R1Kbn2k/N3Q1nn/1bBb1r2/4bqRr/2P2BN1/3RR1r1/qq4b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 d5 a4 h5 g4 f5 e4 Kf7 c3 Kg6 e5 d3 g5 b3 a5 b2 e6 b4 e7 d2 e8Q+ Kh7 a6 h3 a7 h4 Qc6 b3 Ra3 h2 Qc4 d4 Qde2 d1R Ra2 h3 Qcd3 Nc6 Qde3 d3 Qe4 d2 Q2d3 Qc7 Ne2 Bd7 Qe6 Nge7 Qe5 Ng6 Ng3 Nce7 Be2 Rg1 Ra5 d1N Qee4 Nf2 Qd6 Ng4 Qeb4 Rg2 Re5 Nh6 Nd2 b1B Qe6 b2 Rd1 h1Q Qbd6 h2 Nde4 Qg1 Qd4 h1B Be3 Ba2 Rd3 b1Q Rd2 Bd5 Bf2 Rc8 a8R Bg7 Ra6 Rcg8 Ra7 Qa1 Qdb6 Qgb1 Bc5 Qd6 Qd8 Qdb8 Qd6 Bf6 Re6 Bd4 Re5 Bg1 Qe6 B5c6 Bf2 Bb5 Nc5 Bbc6+ Re4 Bd5 Na6 Qd6 Bd1 Qdb4 Ke2 f3+ Ke3 Qd6 Kd4 f4 Ree2 Qdb8 Be3 f2 Kc5 f1B Bd4 f3 Be3 Q8b7 Kd6 f2 Bc5 Q7b4 Kc7 Q4e4 Bc2 Qh4 Be4 Qh2 Bf3 Be4 Re3 Bfb5 Ree2 f1R Bh5 Rf5 Bf3 Nf4 g6+ Kg7 Qe8 Bd5 Qe3 Nf7 Qd8 Rf2 Nf1 Re8 Qe4 Rh4 Qe6 Nh6 Bh5 Bhe4 Bf3 Kh8 g7+ Kh7 g8R Rg2 Rg4 Nfg6+ Kb6 Qf4 Ng3 Ne5 Kc7 Rg8 Bb4 N5g6+ Bd6 Re5 Bc5 Rf5+
Rn6/n2bq2r/KN2qn1k/3PN2n/QN2R1Q1/1n1r2q1/2B1bb2/2r1B1rN w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 Kd2 Kf7 g4 Kg7 e4 b5 e5 h5 e6 f3 g5 f2 e7 c3+ Kd3 c2 e8Q f4 a5 b3 d5 f3 g6 c4+ Kd4 h3 a6 h2 a7 b2 Qde2 c3 Bh3 f1Q Be3 c1R Bg5 c2 Q8e4 h4 Bg4 f2 Be6 h3 Qc4 b4 Qe1 b3 Bf4 Bd7 Qa4 Qg2 Kc4 f1B+ Ne2 Qe7 Qf2 Rh7 Qb5 Nf6 Qa6 Nc6 Kb5 Qg3 Nd2 b1Q Qd4 b2 Bf5 Re8 Bb8 Kh6 a8N Rc8 Rg1 h1R g7 h2 Nf3 Qe6 Qg4 Bc5 Qa5 Bf2 Ka6 Rd1 Bd6 c1N Ne5 Qe4 Bb4 b1N Nb6 Na3 Be1 Rd3 Qa4 Nb3 Bg6 Nb5 g8N+ Kg7 Ne7 Nba7 Rg2 Rg1 Ra2 h1N Ra1 Qgf3 Ng3 Kh6 Ra2 Qee3 Re2 Qg5 Re4 Be2 Bf5 Nd8 Bg6 Rc1 N7c6 Qff4 Nb4 Ndc6 Nf3 Qfd6 Ne5 Qde7 Rh2+ Kg7 Rh5 Qh4 Rg5 Kh6 Bf5 Qh2 Rg8 Qh4 Ra8 Qg5 Nf1 Ng3 Bg6 Ngh5 Ng3 Qe3 Nh1 Qg3 Rc4 Rdd1 Bc2 Rd3 Re4 Nb8+
Rn1bb1r1/QR5K/5N2/Q1Pbr3/3Q1qnb/bnNBB2r/3q1Q1q/q1k5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ra5 Kd3 Ke7 Ke4 Kd6 h4 Kc5 Kf5 Kc4+ Ke4 d5+ Ke5 b5 a4 g5 e4+ d3 c3 f5 h5 b3 h6 g3 h7 d4 Rh6 f3 Rh2 g2 Ne2 g1B Ng3 b2 Be3 g4 Rf2 f4 Nh5 g3 Rg2 f2 Qf3 Kb3 c4 Kc2 Bd2 Nh6 Be2 f1Q Bb4 d2 Ra2 d1R Qd3+ Kc1 Be1 Qf2 Na3 b1N Bg4 f3 Bc3 b4+ Kf4 b3 e5 b2 e6 Bd7 e7 Nd2 e8Q b1Q Nf6 Rg8 Qde2 d3 Bf5 Ng4 Qh5 Be8 Bd4 Qa1 Nb5 Bb4 Rh2 g2 Nc3 Be7 Qf7 Re5 a5 Qh4 a6 f2 a7 f1Q+ Qf3 Bf2 a8Q g1B Qad5 Qh5 Ra8 Ba3 Qa5 Be1 Ba7 Bb6 Rg2 Bc7 Be3 Qh3 c5 Bh4 Rh2 Qd7 Be4 Bd8 Bf5 Qd5 Qfa7 Qf2 Be4 Rh1 Bg6 Qhf1 Rg2 Rh3 Be4 Nh6 Rg7 Ng4 Rb7 Q2g1 Bg6 Qd4+ Be4 Qe1 Qf2 Qb4 Bd4 Nb3 Bg6 d2 Bd3 Re6 Kf5 d1B Be3+ Qd2 h8Q Qh1 Qh6 Bf3 Qf4 Qh2 Qe5 Qd4 Qe4 Qdd6 Qd4 Bd5 Rf7 Rh8 Kg6 Rg8+ Kh7 Qdf4 Rb7 Re5
qn1b2k1/1r6/3R1Q2/P1b1rBN1/1b1Rq3/Nb3N2/1QnrnKnb/2B1Nq2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 Qa5 c4 Kf7 a4 g5 h4 d5 h5 b5 f5 e5 f6 b3+ Qd2 g3 h6 d3 c5 g4 c6 e3 h7 b4 c7 e2 Qf4 g2 Qc4 b2 Nh3 g1B Qb3 g3 Na3 b1R Qd1 d4 Be3 g2 Nc2 e4 Bf2 b3+ Nb4 b2 Be3 Bh2 Ra2 g1N Bd2 Ne7 Bg5 d2+ Kf2 e1B+ Kg2 e3 Bh4 d3 Qc1 d1Q Qd2 e2 Bg5 Be6 c8N Nf5 Nc2 Bh4 Bf4 e1B Nb6 Nd4 Nc4 Bc5 Ra1 Re8 h8N+ Kf8 f7 Bd8 Ng5 Qc1 Qe2 d2 Nf3 d1N Qd2 Ra6 Bd3 Rd6 Bf5 Nge2 N4a3 Qa8 a5 Bc4 Rg1 Re5 Kf1 Rd7 Rg4 Rb7 Rg6 Bb3 Rd6 Kg7 Qc3 Bd2 Bg5 Ne3+ Kf2 Qh1 Nce1 Rd1 Qc2 b1Q Qb2 Qe4 Rc1 Rb5 Rc4 Ndc2 Rcd4 Bdb4 Bf4 Ng2 Bc1 Bf4 Rg6+ Kh7 f8Q Rb7 Nf7 Rd2 Qe7 Bh2 Rd6+ Kg7 N7g5+ Kg8 Qf6 Qf1+
3Q4/1b3nR1/1K1bn2P/4q3/q1N1Nb1n/Q2r2nB/bQrBr1b1/1QRq2k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 c4 d5 a4 g5 h4 f5 c5 f3 e3 f4 c6 b3 c7 d3 a5 f2 a6 d2 a7 d4 h5 g3 Kb6 b2 Ba6 f1N Qg4 d1R Nh3 g2 Bd2 g1B Ra2 d3 Be1 d2 Bb5 Qd4+ Ka5 Nh6 Bg3 Bh2 Qe6+ Kf3 e4 Kg2 e5 g4 Bd3 b5 Ra1 b4 Qc6+ f3 e6 b3 e7 Nf7 e8Q Nd7 h6 Nc5 Nc3 b1Q Na4 b2 Kb6 Qc2 Qe7 b1B Bg6 Bb7 c8Q Ba2 Qee8 Bd6 Qe5 Re8 Qg5 Re2 Qgd8 Qe5 Nf2 Ne6 Ne4 f2 Bf4 g3 Nb2 Rc1 Rb1 d1Q Qb5 Qb3 Qc3 Rcc2 Bc1 Rc8 Qcb4 R8c3 a8Q Rd3 Qaa3 Qa4 Be3 Nd2 Bg5 f1B Nc4 Nf3 Bd2 Nh4 Qbc3 Rd4 Bf5 Rd3 Nf6 Kf2 Rg1 g2 Rc1 Bf4 Qb1 Re1 Rh1 g1N Qcb2 Ne2 Rg1 Bh3 Rg6 Ng3 Rg7 Kg1 Ne4 Bg2 Bh3 Re2
1R1n1qr1/qP1nR3/2Q4N/R2bq3/7k/1Bb1r1Rb/nBrQq3/KnN2q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 Kf6 c4 Kg5 Kc2 h5 Kb2 f5 g4 a5 e4 d5 e5 d3 e6 a3+ Ka2 d2 b5 a4 b6 d4 c5 h3 c6 d3 b7 h4 e7 f3 e8Q h2 c7 h3 Qg6+ Kh4 g5 f4 Qf5 f2 g6 f3 g7 Nf6 g8R Nc6 Qc5 Bg7 Qe1 d1Q Qce3 d2 Nc3 Nd7 Ne4 Bc3 Qc5 Qf8 Rb1 Qe2 Rb4 d1N+ Kb1 Nd8 Bf4 a2+ Kc1 a1Q+ Rb1 a3 Qc6 a2 Rg3 Ra3 Bd6 Rg8 Be5 Rb3 Bg2 f1Q Ng5 f2 Bd5 Rb2 Nf7 Rd2 Bd6 Rd3 Qd2 Rf3 Kc2 Re3 Kb3 Qb2+ Ka4 a1Q+ Ba3 Qb6 Nh6 Qd4+ Kb3 Qe5 Bb2 Qa7 Rg2 Bb4+ Kc2 Nc3 Rg3 Na2 Re1 Bc3 Kb1 Qg2 Ba3 f1N Bb2 Qgf3 Ka1 Q3f7 Qc2 Nd2 Bb3 Qff1 Qd3 Nb1 Qd2 Qef3 Ne2 Qfh5 Rhg1 h1R Nc1 h2 Rg5 Qhe2 R1g3 Rg1 Rf5 h1B Rfg5 Bd5 Rf5 Nc5 Rfg5 Bd7 c8R Rg2 Rb8 Bh3 Rf5 Qe4 Re5 Nd7 Re7 Qe5 Rd1 Q1f4 Rf1 Q4f6 Rf5 Rh2 Rfg5 Qff1 R5g4+ Kh5 Qc2 Qed1 Ra4 Qde1 Qd3 Rc2 Qd2 Qee2 Ra5 Kh4
B1b1k3/Brbr4/2Q4P/1B1QbR1b/2r4K/5nNb/bn2r1NR/B2r1nq1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 g5 h4 b5 f4 e5 Kf2 d5 Kg3 d3 c4 e3 c5 d2 a5 d4 f5 e2 a6 e1B+ Kh2 g3+ Kh3 e4 c6 d3 h5 g2 h6 b3 c7 b2 a7 b4 Nc3 b1B Rh2 e3 Qc2 d1N Ra4 e2 Rh1 b3 Qd2 b2 Qf4 d2 Na2 g4+ Kh2 g3+ Kh3 Nf6 Rc4 Nd5 Qf2 Nc6 Rf4 Rh7 Nf3 g1R Kg4 g2 Ne5 Nd4 Nc6 Rd7 f6 Bg7 Nab4 Rb8 a8B Bf5+ Kh4 b1B Bb2 N5e3 Qg3 Rb7 Ne7 Ba2 Ba1 Nb2 Nbd5 d1B Rh2 Bh3 Rf5 Ba5 Qg5 e1R Nf4 Bh5 Bb5 Nf1 f7+ Kf8 Rd5 Be5 Nf5 Re2 Ng3 Qf6 Rc5 Qb6 Qg8+ Ke7 f8B+ Ke8 Qd5 Rh1 Be7 g1R Bd6 Rgg2 Bf8 Rgf2 Ng2 Rf3 Be7 Rc3 Bg5 Rc4 Be3 Rec2 Rc6 Re2 Rf6 Nd2 Rf5 Rd1 Bg5 Nf1 Be7 Qc6 Bc5 Qg6 Ba7 Bb6 Rf2 Qb1 Rf5 Qc1 Qd6 Qe3 Qd5 Qg1 Rh1 Rb8 Rh2 Bb7 c8Q+ Bd8+ Rf6 Ba6 Qcc5 Bc8 Qdc6 Bdc7 Rf5 Rb7 Q5d5 Nf3+
2qRr1B1/RP1r1qk1/1bnRqqb1/3K2Br/r5N1/3R1n1q/2Q5/1Q1N1q1r w - - 0 1 illegal: No possible last move, all moves rejected
5bBQ/B4qnb/2B2r2/nb1b1Pk1/bNbn3R/Qr1n1rK1/R7/1q2NB2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Kf6 g4 h5 c4 e5 a4 b5 a5 d5 a6 b3 c5 d3 a7 e3+ Kf3 e4+ Kg2 e2 c6 e1N+ Kh3 b4 c7 e3 Nc3 b2 Qb3 b1B Ra6+ Nc6 Ra1 d4 Ba3 d2 Bg2 d1R Qd5 d3 Nge2 d2 Qb5 b3 Bd5 b2 Bf3 Nh6 Qc5 Rb8 a8B Bh7 Qd6+ Be6 c8B b1Q Qc5 Qd5 Rg1 Nc2 Bab7 Rf1 Ra2 d1B Qb6 Na5 Qb2 Nd4 Qc1 Nhf5 Ba6 Ng7 f5 Ba4 Nf4 e2 Nd3 e1N Bc5 Rb3 Qa3 Kg5 Rh1 Qd7 Ba8 Bc4 Bc6 Qf7 Ba7 Rf3+ Kh2 h3 Be6 h4 Nd5 Bcb5 N5b4 Rg8 Nf4 Bc4 Ng2 Nd3 Ne1 Bab5 Kg1 h2+ Kg2 Nh5 Bed5 Rg6 Be6 Ng7 Bed5 Kf4 g5 Rf6 g6 Kg5 Be6 Qb7 Bg8 Qf7 Rf1 h1B+ Kh2 Rg3 Rf4 h3 Rh4 Ba4 Bab5 Bhd5 Ba6 Rf3 Bab5 Rf2+ Kg3 h2 Ba6 Ne8 g7 h1B Ba8 Bdc6 Bb5 Bd7 Bg2 Rf4 Bf1 Bf3 Bc6 Bfd5 Ba8 Bdb5 Bc6 Qh5 Be6 Rf2 g8Q+ Ng7 Qh8 Qg6 Bg8 Qf7 Bb6 Rf4 Ba7 Rf3+
3RnR1Q/1n1qq2q/2R2n1r/4PbBr/1RqqN1k1/Kb6/2Bb2n1/1Q1N2q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb2 d5 a4 h5 a5 b5 e3 h3 g3 d3 a6 f3 c5 d2 a7 h2 e4+ Kg4 c6 f5 e5 h4 c7 d4 Nh3 d3 Qa4 d1Q Nc3 f4 Ne4 f2 Nd6 f3 Nf5 d2 Qa5 b3 Be2 f1N Ne7 b4 Rb1 Na6 Nd5 Rh5 Qb6 Qd7 Qb5 Bh6 Bd3 f2 Qb7 Nc5 Qb6 Nb7 Ne7 Nf6 Nc6 Ne3 Bb5 f1Q Ba6 Ng2 Ng5 h3 Ne4 Qc4 Rf1 h1N Qg1 h2 Na5 Ne8 Rf8 Nf2 Bb5 h1B Ba4 Qe7 Qf1 Bf5 c8R Rb8 Rc6 Rd8 a8R Rd6 Qg1 Bg5 Qf1 Rdh6 Rd8 Bf4 Qd3 Qg1 Qf1 d1Q Qe1 Bd2 Qf1 Kh3 g4 Qd7 g5 Ng4 g6 Ngf6 g7 Kg4 Qd3 Qgc5 Qf1 Qce7 g8Q+ Qg7 Qh8 Qge7 Qd3 Qg1 Qc3 Qcd4 Nc4 Qf1 Ka1 b2+ Ka2 Qfd3 Bc2 Qe2 Ned6 b3+ Ka3 Qed3 Qb4 Q3c3 Ra1 b1Q Nb2 Qcc4 Nd1 b2 Ra2 Qa1 Ne4 b1Q Bd3 Qb6 Bc2 Qad4 Rb2 Qbc5 Rb3 Qh7 Rb2 Qce7 Rb3 Be1 Bg5 Bd2 Nb2 Qbg1 Nd1 Qee6 Qb6 Qee7+ Rb4 Nh4 Nd6 Bd5 Ne4 Ng2 Qb5 Qe2 Qd3 Ba2 Qb3 Qec4 Qb1 Bb3
4Q2n/2nN1NBB/bKqbQ1r1/B1R5/bn5q/2rq4/bB1kb2P/2Rn2q1 w - - 0 1 illegal: No proof kernel
B2br2R/3q4/kr2n2B/b2b1N2/R1b1b3/1nBN2n1/K2PQn1r/B3q1Qr w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 a4 Kd7 h4 Kc6 f4 Kb6 a5+ Ka6 f5 b5 h5 c5 h6 e5 f6 g5 f7 e3 h7 e4 Ba3 b3 Qe2 g3 Kd1 c3 Kc1 g2 Bb4 c2 Kb2 c1R Qe1 e2 Rh2 e3 Ka3 g4 Rh5 b2 Nc3 b1B Rh1 g3 Ne4 c4 Rh5 c3 Nf2 c2 Rh2 Nf6 Kb2 Qd7 Ra2 Nc6 Bd6 b4 Ngh3 g1B Bf4 g2 Qd1 b3 Be5 Bb4 f8B Nh5 Bfd6 Rb8 Bg7 Ng3 Nh1 Nd8 Bge5 Rb6 Ra3 Bb7 Bd4 Bd5 Nf4 Ba2 Bf8 Ne6 Nd3 e1Q Bc3 e2 Bh6 Bgc5 Rh4 g1N Ra4 Nh3 Bg2 Be7 Rh5 Re8 h8B Nf2 Be4 Bc4 Ba8 Bd8 B8g7 Ra1 Qb1 c1N Rh4 Ka7 a6 Ba5 Ka3 b2 Rh2 Nf1 Ng3 Nb3 Nf5 Ng3 Qd1 b1B Bge5 Qh1 Qg1 e1R Rh4 Re2 Bf6 Rb7 Bfe5 Kb6 a7 Ka6 Bh8 Bc2 Rh3 Rc1 Ba1 Rb6 Bhc3 Bd5 Rh5 Nbd4 Rh4 Bac4 Rh5 Nb3 Ka2 Rf1 Qh2 Rd6 Bhg7 Nfe4 Nc1 Re3 Qe2 Ref3 Bc6 Re1 Rh8 Rf2 Bf8 Qg1 Bh6 Rh2 Bb7+ Kb6 Bc6 Qf2 Bb7 Reh1 Bc6 Qe1 a8Q Nf2 Bb7 Bg2 Bf3 Kb5 Qd5+ Ka6 Qdd3 Qf1 Ba8 Bd5 Qd1 Qe2 Qg1 Qe1 Qe2 Bce4 Nd3 Rb6
n7/1k1brq2/5NNr/3n1B1K/1q2Q1n1/1P2bBqR/Qr1qB1rB/nn5R w - - 0 1 illegal: No possible last move, all moves rejected
N2q2rR/kb3RBK/4NNBn/q3q1r1/1Q1Pqbb1/rQ4q1/8/Nnr3b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb6 a4 f5+ Ke5 c5 g4 h5 e4 h3 g5 b3 g6 c3 g7 c4 a5+ Ka7 a6 b5 d3 h4 Ra3 b2 Be3+ Bc5 Qb3 b4 Qd1 f3 Ra1 b3 Nd2 b1R Be2 b2 Bf2 c2 Ra4 c1R Ra2 f4 Nb3 c3 Qe1 c2 Nd2 h2 Bd1 h3 Qe3 Bg4 Qe2 Nh6 g8Q Nd7+ Kd5 Nb6+ Ke5 Na4 Nb3 Nc3 Bd4 f2 Nf3 f1Q Qe1 Qg1 Na1 Qg3 Qb3 Rg8 Ng5 Bb6 Rf1 h1B Ne6 h2 Qd2 f3+ Qf4 Qd6+ Kf6 f2 e5 Bb7 Bf3 h1Q Be4 Rg5 Bg6 Qhh4 Kg7 Rg8+ Kh7 Qc5 Qf8 Qa5 Qfb4 Qh5 Rh1 f1Q Rh2 Bc5 Rf2 Qe2 Rf7 Qd8 Ra5 Bb6 Rc5 Qe4 Rc8 Qed5 Rb8 Qa5 Q3c4 Qf8 Rc8 Qh1 Qa4 Qhd5 Nc7 Qdb5 Bf5 R8g6 e6 Qd5 Be5 Bg1 e7 Kb6 e8N Qe7 Bf6 Qee5 a7 Qd7 a8N+ Ka7 d4 Qde7 Nb3 Ra1 Qab4 b1Q Ne6 Ra3 Na1 Q7c7 Qcb3 Qcd6 Ne8c7 Qdd5 Rh8 Rg8 Ne8 Qdd8 Nac7 Qb2 Bg7 Nb1 Bg6 Qa2 Qd3 Q2d5 Na8 Qde4 Qe3 Rd1 Qeb3 c1B Nf6 Bf4 Qb5 Re1 Q5b4 Rc1
2bb3b/1n1Q3B/3rN1n1/2RN4/Pb1q2NQ/nq2Nk2/1Rq1r1n1/Bb3Kq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 c4 Ke7 a4 Ke6 e4 Ke5 h4 f5 c5 g5 h5 b5 h6 d5 h7 b3 c6 f3 c7 b4 Ra2 g3 Qc2 f2+ Ke2 d3+ Kf3 d4 Kg2 b2 Ra1 b3 Ra2 g4 Ne2 f4 Qc6 d2 Qc3 d1Q Rh4 f3+ Kh1 g2+ Kh2 g1B+ Kh1 g3 Na3 b1B Qb4 b2 Qe1 d3 Qc3+ Qd4 Ra1 d2 Rf4 Nc6 Bh3 f1N Rf6 f2 Kg2 Nd8 Qd3 Nb7 Ra6 Bb4 Rb6 Ne7 Nf4 Re8 Ne6 Qc2 Bf5 d1Q Rc6 Qh5 Ra2 Ra6 Qd1 Qb3 Nc2 Ng6 Ne3 Re7 Rc4 Rd6 Bd2 Bh2 Bc3 Nd2 Rc6 Nc4 Kf1 Na3 Qg4 Bg1 h8N Qh2 Qh4 Bd7 c8Q g2+ Ke2 f1N Rc5+ Qd5 Qe8 Bc8 Qd7 Bf2 Qd8 g1B Qd7 Nf8 Bh7 Ng6 Nf5 Be3+ Ke1 Bg5 Ne3 Kf6 Nf7 Qb3 Nh6 Qbc2 Nd5+ Ke5 Nf5 Re8 Nfe3 Bd8 Ng2 Qb3 Ke2 Ne3 Ke1 Nec2+ Kf1 Ne1 Nge3 Ng2 Ra1 Bc2 Rd1 b1Q Ba1 Q1b2 Rd2 Bb1 Rdc2 Q2c3 Ra2 Qcc2 Rb2 Qdd2 Ng5 Kd4 e5+ Kd3 e6 Bf2 Ng4 Bd4 e7 Bh8 Ne6 Ke4 Nde3 Qdc3 Nf2+ Kf3 Nfg4 Rg8 e8N Qd4 Nef6 Re8 Nfd5 Re7 Ng7 Re5 Ne6 Re4 Nd1 Re2 N1e3 Qg1+
r5Q1/1q2r1Rb/2r1n1q1/3bRPn1/bNNr4/2q1bBK1/2r1Q2B/1k2qQQ1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Ke6 g4 Kd5 a4 b5 g5 h5 c3 e5 a5 b3 g6 d3 a6 Kc4 a7 d5 g7 d4 Ra3 e3+ Kf3 h3 Bg2 b4 Qd2 e2 Bb2 e1R Qe2 h4 Ra6 e4+ Kf2 e3+ Kf3 h2 Ra4 h3 Ra2 Qa5 Qd1 e2 Qc2 d2 Qf5 d1B Qg4 Kd3 c4 Kc2 c5 d3 c6 d2 c7 Nc6 Qh5 Nd4+ Kf2 Nh6 g8Q Nf7 Ba3+ b2 Qh4 b3 Qh6 Bc5 Qhh7+ Bf5 c8Q Ne6+ Kf3 Nfg5+ Kg3 Qc3+ Bf3 Be3 Qe7 Rh6 Qcf8 Bh7 Bd6 Kc1 Na3 b1R Qeg7 b2 Nc4 Ba4 f5 d1R Qfe7 Rd4 Qee8 Ra1 Qb5 Rc8 a8Q b1Q Qe4 Qbb4 Qa6 Qb7 Rb2 Ra8 Rb5 Ra2 Re5 Rc2 Qd3 Kb1 Qd2 Rec1 Qd1 Qc6 Qf1 e1Q+ Qf2 Rcd1 Bd5 Bb5 Qgb7 Rd8 Nb6 Rb4 Nf3 Rd7 Nd4 Ra4 Re4 Rh4 Rg1 h1B Kh2 Ng7 Qbb8 Rh6 Qbb7 Nf7 Bf4 Rdd2 Re5 Re7 Bg2 Qd6 Nc6 Rdd4 Nb4 Bd7 Qc4 Ra8 Qff1 Ba4 Qce2 Rhe6 Bc6 Be4 Rg6 Ng5 Bd5 Qdc6 Nc4 Qe8 Bg3 Rea6 Bc6 N7e6 Rg7 Bh1 Bg2 Qg6 Qe4 Rad6 Q4g4 Rb6 Bf2 Rbd6 Bg1 Rb6 Qg3 Rba6 Qgf2 Rb6 Kg3 h2 Bd5 Bf3 Be4 h1Q Bb7 Bfc6 Bh2 Qd5 Qg1 Qd7 Qgf1 Be4 Bd5 Qb7 Qg1 Rc6 Qgf1 Bd3 Bf3 Be4 Qg1 Bd5 Qgf1 Qd1 Q2g1 Qde1+
2n1bbbb/r1q4q/k1PB2BN/3BQ1R1/1R2nQ1n/2nq2B1/2rn4/3KNq2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 c4 d5 a4 Kd7 h4 Kc6 e4 Kb6 e5 f5 a5+ Ka6 e6 b5 h5 g5 h6 b3 e7 b4 e8Q g3 c5+ d3 c6 g4 h7 b2 Qa4 f3 Nd2 b1N Qe4 f2+ Kd1 g2 Nh3 g1N Nb3 f4 Qd4 f3 Be2 f1B Rh2 f2 Ng5 g3 Qe4 g2 Qa3 d4 Qg4 Ne7 Qg3 Bd7 Qa4 Ra7 Rh6 Be8 Nd2 b3 Re6 b2 Qd6 Nf3 Nf7 g1B Re5 Nc8 Rg5 Nh4 Nf3 Qc7 Ne1 Nd7 Bf4 Nd2 Bg3 Nf6 Qe5 Nfe4 Nh6 b1N Bf3 Nbc3+ Kc1 Bg2 Rb1 f1Q Rb4 Bh3 Bh5 Be6 Bg6 Rg8 h8B Qf5 Bh5 Qfh7 Bg6 Bb3 Bf6 Rh8 Be7 Bg8 Bd6 Be3 Qf6 Bf4 Qa1 Be5 Qf2 Ndb1 Qf4 d2+ Kc2 Beg7 Qa2 Bf6 Qe6 B6g7 Qee5 d1Q+ Kb2 Qf3 Kc2 d3+ Kc1 d2+ Kc2 Ne2 Kd1 Qf1 Nf5 Ng2 Kc2 Bf6 Rd4 Qhg7 Rb4 Rh2 Nh6 Ra8 Nf3 Qh7 Ne1 Ka7 a6 Nh4 Rc4 Kb6 a7 Bh8 Ra4 N2c3 Rd4 Rb8 a8B Rb7 Ra4 Ra7 Bb7 Rf2 Ba6 Rg2 Bb5 Rh2 Rc4 Ka5 Ba4+ Ka6 Rb4 Rf2 Bb3 Rg2 Qf2 Rh2 Bd5 d1Q+ Kb2 Qf3 Kc1 Q3d3 Qff4 Ra2 Qff6 Nbd2 Qff4 Ne2+ Kd1 Rb2 Rb8 Rc2 Rb4 N2c3+
Bn1q1KN1/1qb1QPR1/3N1n2/rb1k1rnr/1R6/Qnb2r2/3BQn1Q/b7 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Ke6 f4 h5 a4 d5 c4 b5 g5 d3+ Ke3 b3 Kd4 d2 Kc5 b2 a5 d4 a6 b4 a7 d3 g6 h3 g7 h2 Qe1 d1N Qc3 b3 Qd2 h4 Nf3 h3 Qc3 d2 Rg1 h1R Rg3 e3 Ra5 e2 Ng1 e1B Nf3 h2 Ra4 Nf2 Nh4 d1N Rb4 Bd7 Nd2 b1N Ne4 b2 Qc2 Rh5+ Nf5 Bc3 Bd2 Nf6 Bg2 Nh3 Nd6 Ng5 Nh6 Rf1 Ng8 h1R f5+ Ke5 Bd5 Nf2 Qd1 R1h4 Qe2+ Re4 Bc6 Re3 Be4 Bb5 Rg2 Ne8 f6 Rf3 f7 Nf6 Rg4 Na3 Rg1 b1Q Rg2 Nc2 Rg3 Nd4 Rg1 Nbc6 Rg3 Rb8 a8Q Ba1 Qa3 Ra8 Rg4 Ra5 Rg1 Nb8 Ba8+ Re3 Rg3 Kf4 Rg2 e5 Rg1 e4 Rg2 Nfh7 Kd5 Qb2 c5 Nb3 c6 Be7 c7 Bf6 c8Q Bc3 Be1 Rf3 Qc5 Ne6+ Rg5 Nc1 Qc7 Nh3 Qa7 R3f2 Qd1 Be8+ Rb5 e3 Ne7 e2 g8Q Kf3 Qdd4 Nf6+ Ke5+ Bc6 Qe8 Qb4 Ng8 Nb3 Bd2 e1B Nf5 Qbe7 Rg7 Qb4 Qc5 Neg5 Rb7 Bd7 Kd6 Qb5 Qde5 Bc6+ Rd7 Qb7 Qh2 Bb5 Qce5 Re2 Qec5 Re5 Qcf2+ Ke4 Qfg2+ Rf3 Qe2+ Re3 Qf8 Bh4 Qe8 Bg3 Qe6 Qb6+ Ke7 Nf2 Kf8 Qd8+ Qe8 Bf4 Rc7 Bg3 Rc4+ Kd5 Rh4 Rf3 Rb4 Qc7 Qe7 Qb6 Nd6 Ref5 Ne4 Qd6 Qb2 Qd7 Qa3 Bc7 Nd6 Qd8+
2q2b2/r1nQ2Bk/2n3qB/1R3n1N/1B1r3R/b2r1N1q/P1QK2b1/b3rB1q w - - 0 1 illegal: No possible last move, all moves rejected
2B2nb1/3NBn2/1b3qP1/1n4r1/1r3Bq1/n1N1q1Qq/B2kbr2/1Rr2QRK w - - 0 1 illegal: No possible last move, all moves rejected
1qB1nq2/1Q1r2Pq/3bbB1K/1b4r1/2nr3R/1n4kb/4BNrq/QN3R1B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 f5 g4 b5 c4 d5 e4 d3 a4 d4 a5 b3 c5 b4 a6 d2 c6 h3 c7 b2 g5 b3 a7 d3 g6 f3 g7 Kf4 e5 f2 e6 h2 e7 Nd7 e8B Ne5 Bh3 f1B Qc2 Be6 c8Q Nc4 Ra5 Nf6+ Kh6 Kg3 Ra2 d1R Bd2 f4 Qc6 f3 Bh5 f2 Qc3 Bd6 Ra5 Ne8 Bf5 Bh3 Qc7 f1B Na3 b1Q Re5 b2 Be3 d2 Rb5 Qf6+ Bfg6 Qf8 Qf7 Rd8 a8B Rd7 Qc1 Bd3 Nf3 Rg1 Rb7 d1R Nd4 Rg2 Rf1 h1Q Nb3 Qh2 Rb4 Be2 Bf5 Rd4 Nc5 Bd3 Kg5 Be2 Bhf3 h5 Nd3 h4 Nf2 Rh5+ Kg6 Rg5+ Kh6 Qc2 Bad5 Qb3 Qa1 b1N Ra4 Bd3 Be2 Nbd2 Nb1 Qb8 Bdf3 Nb3 Bc1 Nca5 Bb2 Bb5 Bd5 Nc4 Rb4 Rdg4 Bf6 Rd4 Bc6 Rg1 Bh1 Rg2 Bfg4 Rd8 Kh7 Bd5 Bd1 Nb6 Qd7 Re4 Bge2 Qg1 Qf7 Bhd7 Bg4 h3 Qg6 h2 Bde2 Bf7 Rd4 Nc4 Bf5 Bd5 Qf7 Bc8 Qb7 Bf7 Rd5 Reg4 Re5 Rd4 Re4 Bcd7 Bg6 Bg4 Bf5 Bd5 Bc8 Rd7 Rf4 Bde6 Nd3 Rf2 Be4 Qg2 Bd5 Qe4+ Kh6 Bh3 Rh4 h1Q Bc6 Qh2 Bd5 Qf5 Bh1 Rg2 Nf2 Qh7+
7k/PB1q4/1BQ2b1r/2r1NR1b/2QN1Qnb/2q1qqnR/3nQ3/1n2Krb1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 d5 a4 b5 e4 f5 c4 Kf7 e5 g5 h5 Kg7 c5 d3 e6 d2+ Ke2 d4 c6 d3+ Kf2 f3 c7 g3+ Ke3 b3 a5 f4+ Ke4 b4 e7 f2 Kf3 b2 e8Q b3 a6 g4+ Kg2 Rh6 a7 Qf6 Qd7+ Ne7 Qd8 Nd7 Ra2 Ne5 Ra1 Nf5 Rh4 f3+ Kh1 g2+ Kh2 g3+ Kh3 Be7 Rb4 Ng4 Nc3 b1N Nce2 b2 Qd4 Kh8 Qb6 Qc3 Qb8 Bh4 Qc2 d1Q Nd4 d2 Ba6 f1R Rb5 f2 Bb7 Qdf3 Ra3 d1Q Qe2 Qfe3 Ngf3 g1B Kg2 Nd2 Ne5 b1N Rab3 Bf6 Ba3 Bh2 Bc5 Bg1 Ra3 Qa4 Ra5 Qd7 Bb6 Bh2 Ba6 Bg1 Qb7 Rc1 Qc6 Rb8 Bb7 f1Q+ Kh1 Qff4 Kg2 Bf2 Rb3 Be1 Rd5 Qef3+ Kg1 g2 Rdb5 Rg6 h6 Ng3 h7 Rh6 Rd5 Qa1 Rdb5 Rc5 Re3 Qc3 Rd3 Qd8 Ra5 Bd7 c8Q Be8 Qf5 Qg5 Qf4 Bh5 Re3 Qd7 Qc4 Rf8 Qe2 Qfd5 Rd3 Nh1 Rh3 Bh4 Qc4 Ng3 Qe2 Nh2 Kf2 g1B+ Ke1 Qdf3 Nd3 Rc4 Rf5 Rc5 Ne5 Ng4 Qfe4 Qge3 Qf4 Kg7 Nd3 Rf7 h8Q+ Kg6 Qd8 Kg7 Qdc7 Kh8 Ne5 Rc4 Qa4 Be7 Qcc6 Qg2 Qf2 Rc5 Rf4 Rf5 Qc4 Bef6 Re4 Rf3 Rf4 Qh1 Rf5 Rf4 Qfg2 Rf3 Qe4 Rf2 Qgf3 Qg2 Qff4 Qgf3 Qc6 Rf1#
4N2R/b2Nbqrr/3n4/1nq1Bb2/N1B1P2k/n2nRr2/2QKpq1n/2Q2N2 w - - 0 1 illegal: No proof kernel
rrb1bn2/qnq1N3/n1nkr3/2n1b1R1/3p1PB1/4B2Q/Q3N1RB/1K2Bq2 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 d5 f4 Kd7 h4 a5 b4 g5 c4 e5 Kc2 a3 h5 d3+ Kd2 e3+ Kc3 e2 h6 e1N c5 g3 h7 g2 b5 d4+ Kd2 e4 c6+ Kd6 b6 a4 b7 a2 c7 g4 Rh4 a3 Rh5 g3 Rh6+ Nf6 Ne2 g1Q Qc2 g2 Qc3 e3+ Kd1 d2 Rh3 Bg7 Qc2 Nd3 Rh2 Nc5 Qc4 Nba6 Kc2 Nfd7 b8B Be5 Nbc3 Nf8 Nd5 Nb7 Ne7 Qh1 Ba7 g1N Rg2 Nf3 Bb6 Qh3 Rb1 a1Q Ba5 a2 Rb5 Rg8 h8B d1B+ Kd3 Qh1 Bf6 Ba4 Be1 Qg1 Rc5 Be8 Kc2 Qd7 Bfh4 Rh8 Ng3 e2 Be3 Rb8 Qb3 Rh6 Qb1 Re6 Kc1 Qc3+ Qc2 a1N Kb1 Nb3 Rb5 Qc5 Qa2 Qa7 Rc5 Qd8 Ra5 N3c5 Rb5 Bcd7 c8Q Qc7 Ra5 Rg6 Rb5 Bg4 Qf5 Rg8 Qh5 Bc8 Qg4 Bg7 Qh3 Ne5 Ra5 Nc6 Rb5 Nb3 Rg5 Rh8 B1f2 Qh1 Bg1 N3c5 Bh2 e1R+ Bc1 Nfd7 Be2 Qf1 Bg4 Re6 Ne2 Nf8 Be1 Be5 Be3 Ra8 Bg3 Bf7 Rf2 Ng6 Bh2 Bd7 Bf5 Rhb8 Bg4 Bfe8 Rg2 Bc8 Rh5 Nf8 Rf5 Ne4 Rg5 Nec5
1Qr1b1n1/3rB1nn/1KqB1q1k/3p2qb/Rb2n2N/rR1nPN2/4Q1B1/6B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 a5 Kc4 d5+ Kb5 f5 c4 Kf7 h4 Kg7 b4 f3 c5 d3 e3 f4 h5 a3 c6 a2 c7 f2 Qa4 d2 Nc3 d1B Nh3 g3 Bg2 f1N Be4 f3 Bb1 f2 Bd2 g2 Rg1 g4 Qa3 a4 Qc1 g3 Nf4 a3 Ne6+ Kh6 Bh7 Na6 Qb2 Ra7 Nd4 Qg5 Be4 Bd7+ Kb6 Be8 c8Q Nc5 b5 Rd7 Nce2 Nd3 Bb4 Nd2 Nf3 f1N Nf4 Be7 Rh1 g1N Bd6 g2 Qb8 Nh3 Ng6 g1Q Ngh4 Ng3 Rb1 a1Q Rh2 Nb3 Qe2 Nbc5 Rb3 a2 Rg2 Nf5 Rg4 Qd4 Bh2 Qf1 Bg1 a1R Rf4 Qa4 Rg4 Kg7 Rf4 Ra3 h6+ Kf8 h7 Kg7 Rg4 Kh6 Rf4 Ng7 Rg4 Nf6 Rf4 Rf8 h8B Ng8 Rg4 Nf5 Ba1 Ng7 Bf6 Bd6 Be7 Qa8 Nd2 Qff6 Bg2 Ne4 Ndf3 Qa4 Kc6 Qa6+ b6 Qc8+ Kb5 Bb4 b7 Nec5 Qa7 Bf7 b8B Qge5 Rg5 Bd2 Rg4 Ng5 Qf1 Nh7 Nh2 Qeg5 Ra4 Bdh5 Bbd6 Ne4 N2f3 Bb4 Qb8 Qc7 Qe1 Rc8 Qe2 Be8 Ka6 Qcc3 Kb6 Qc6#
n5BQ/1bn2b2/4Q1P1/2R1pr2/r4qkB/B3R3/1b3nrb/BNqbNK1q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Ke6 a4 b5 d4 c5 a5 h5 a6 h3 a7 b3 g5 Kf5 d5 e5 g6 h4 d6 b2 d7 c3 Ne2 e3 Bd2 c2 Ng1 c1Q Ra6 h2 Nc3 b1B Rd6 c4 Nd5 b4 Nc7 c3 Rb6 b3 Re6 e2 Rf6+ Kg4 f5 h3 Kf2 b2 Ne8 c2 Rc6 Qf6 d8B Nd7 Be1 Ba2 Bc3 b1B Bd4 Ne7 Be3 Bf7 Qd6 e1R Nc7 Rh5 Bd4 Bb7 Nd5 Nb6 Nc3 Ned5 Rc5 Nc7 Bc4 Rd1 Nf3 Rg1 Ne1 Rg2+ Kf1 Bh6 Nd1 Be3 Qe6 Bg1 Ba1 Qh4 f6+ Rf5+ Nf3 Qhg5 Be7 Qcf4 Nc3 c1B Bd8 Ba2 Nb1 Bb3 Be7 Bd1 Bd8 Bf2 Ne1 Bb2 Rg1 h1N Ba2 Bg8 f7 h2 f8B Bf7 Bd5 Qh6 Bh4 Qc1 Bfe7 Qhf4 Bd6 Rg3 Rg2 Bg1+ Rf2 Rg2 Rf3 Nf2 Re3 h1Q Bf8 Re8 a8Q Re7 Qb8 Nba8 Qbc8 Rd7 Bd6 Re7 Qh8 Rd7 Bf8 Rd6 Bfe7 Ra6 Qc6 Ra2 Rb5 Be8 Bg8 Ra6 Ba3 Ra4 Qe6 Bf7 Rc5 Bh2#
1b1k2n1/NQ1r4/qR1nb1p1/Nq1Bbn2/n3BQ2/3R1q1n/2B4P/r1r1B2K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 Kg2 f5 c4 b5 e4 b3 a4 d3 e5 b4 e6 f3+ Kg3 d2 a5 g6 e7 f4+ Kf2 b2 c5 d4 a6 d3 a7 b3 c6 Rh7 c7 Qd6 Qc2 d1N+ Ke1 g3 Qf2 g2 Qd4 f2+ Kd2 f3 Na3 b1R Qg7 b2 Be2 f1Q Qh8 f2 Nc4 Bg7 Ra3 Ne3 Nf3 g1B Nd4 Be5 Bf3 Nc6 Be4 Nd8 Qf6 Nf7 Nb5 Nf5 Na5 Be6 c8B Qb6 Bcb7 Qa6 Bbd5 N7d6 Qg5 Qg2 Qf4 Qf3 Rb3 Kd7 e8B+ Kd8 Ra3 Rc8 a8Q f1Q Qb7 Ra1 Na7 Rd7 Rb3 Bf2 Rb6 Bg3 Rg1 Qh5 Bf7 Qff3 Bb3 Rc6 Bc2 Qg5 Re1 Rc3 Re2 b1N+ Kd1 Qgh5 Bd2 Rcc7 Be1 Nc3+ Kd2 Na4 Re3 Rc5 Bb1 Rc1 Bc2 Qf2+ Re2 Qc5 Re3 Qcb5 Rf3 Nfh6 Ke3 d2 Qf5 Bgf4+ Kf2 d1N+ Kg2 Nf2 Rd3 Nh3 Qg4 Nhf5 Kh1 Nc4 Qf3 Bb8 Qg3 Bfe5 Qg4 Ncd6 Qf4 Ba2 Bfd5 Qd1 Bc6 Be6 Bcd5 Qf3+
2k2K1r/Bb3QBq/B1rQP2b/2q1n2p/1BbN1R2/2N2r2/1R1n1b2/2qn2b1 w - - 0 1 illegal: No possible last move
n5rb/q1nN1Bp1/2rqQq1r/8/bB1k2K1/5B1q/PRRn3q/Q1B1Nb2 w - - 0 1 illegal: Other
r2qBnr1/K4p2/Q2R4/4BN2/1Qn1P2r/1Rrn1bbq/BBk2N1r/1q4b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Kc5 h4 d5 c4 b5 h5 g5 h6 b3 a5 Kb4 a6 g3+ Kf3 b2 h7 d3 c5 g2 a7 d4 c6 g4+ Kf2 d2 c7 d3 Rh2 g3+ Kf3 Nf6 Qc2 d1N Rh5 d2 Rf5 Nf2 Rg5 d1R Rg6 Nfd7 Ke2 f3+ Ke3 Rd2 Rga6 Nc6 Qd3 Nce5 Kd4 Nc4 Nc3 Kb3 Nge2 b1Q Rd6 g1R Bb2 g2 Ng3 b4 Nf5 Bg7+ Kd5 Be5 Kc6 Bg3 Qd4 Nd3 Ra3+ Kc2 Nd1 f2 Rb3 Nf8 Qb6 Rg8 h8B Rh1 Bhe5 g1B Qb8 Be6 Kb7 Rh4 c8B Bd7 Bh3 f1Q Nf2 Re2 Bg4 Qh3 Ka6 Ba4 Bd7 Re3 Be8 Rf3 Ra3 b3 Qb4 Re3 Nh6 Rf3 Be6 Bd7 Bd5 Bg4 Nf5 Re3 Be6 Bf3 Bd5 Ne1 Kb7 Rc3 Ka6 Nd3 Kb7 Rc8 a8Q Rb8+ Ka7 Rc8 Bc1 b2 Rb3 Rb8 Qc6 Rc8 Qa6 Ra8+ Kb7 Qa2 Be6 b1R Ba3 Rf1 Bb2 Qb1 Bd5 B1h2 Be6 Rh1 Bd5 Bg1 Be6 Rc8 Ka7 Rh2 Ra3 Na5 Ba2 Nc4 Rb3 Ra8+
2r1Rb1B/N1n2p1n/1nP4n/K1RR3q/2b2r1R/Q4r2/nQ1N2qb/3k2qB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Kd6 e4 Kc5 c4 g5 h4 d5 e5 b5 a5 g3 h5 g4 e6 d3 e7 Kd4 e8R f3 a6 f2 h6 b3 a7 g2 c5 g3 h7 b4 c6 b2 Ra6 b3 Re1 Be6 Re3 Qg5 Rh2 Nd7 Rh1 Nh6 Ra3 Rc8 a8Q Nb6 Nc3 b1Q Qb7 b2 Nh3 g1B Qb8 g2 Qe1 Bh2 Ra5 g1N Qd1 Qg2 Ng5 Nh3 Be2 f1R Na4 Rf3 Ne4 Ng5 Qb3 Rg8 h8R Nh7 Nf2 Rg4 Rc5 Rgf4 Re5 Qa1 Ne4 b1N+ Ke1 Nc3 Kd2 Na2 Nac3 Qb1 Bb2 Qa1 Qa3 Qag1 Ra5 Kc4 Nb5 d4 Na7 Bd5 Re8 Be6 Rg8 Bd5 Rg5 Be6 Qad6 Kb3 Rac5 Bc4 Rgd5 Qg3 Bf1 Q3g2+ Ke1 Kc2 Nd2 Nb4 Qe7 Na6 Bc3 Nc7 Qe3 Nba8 Qb4 Nb6 Qf2 Bg3 Rh4 Bh2 Qa3 Bb5 Nc4+ d2+ Ke2 d1N Bb2 Rd3 Nd2+ Bc4 Ke1 Rdf3 Bc3 d3 Bh8 Qg8 Qg2 Nc3 Qe2 Qd4 Bg2 Na2 Bh1 Qg2 Ne4+ Kb1 Kd2 Qdg1 Qf2 Nb4 Kc3 d2+ Qe3 d1Q Qb3+ Ka1 Nd2 Qde2 Qd3 Na2+ Kc2+ Qe5 Qb4 Bb5 Kb3 Bc4+ Ka3 Nc3 Qb5 Qh5 Kb4 Kb2 Ka5+ Kc1 Qb2+ Kd1 Qe3 Na2 Qd3 Qe2 Qda3 Qeg2
5Q2/1nPNR2K/4b1Qn/1p2b3/5rq1/1bn3N1/nk1n3q/RrqQBBrQ w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kh5 Kc4 g4 d5 a4 b5 e4+ d3 g5 f5 e5 h3 a5 b3 c3 b2 e6 h2 e7 f3 e8Q f2 g6 f4 a6 f3 a7 d4 g7 Be6 Nh3 Nc6 Ra3 Qc8 Bg5 Nd8 Bh4 Bd6 Qe1 Nh6 g8Q Nb7 Be7 Be5 Qg5 Rg8 Qf6 Rg1 Ra5 Kb3 c4 d2 c5 d1B c6 d3 c7 d2 Bd3 f1N Qef8 f2+ Qe2 Qd7 Qg8 Rf8 Nc3 b1N a8Q Kb2 Nf4 Bdb3 Ncd5 Nc3 Qd1 Na2 Qfg6 Rf7 Ne2 Rf4 Bh4 Qg7 Qe1 d1N Nf6 Ndc3 Qgf8 Nd2 Qd1 f1Q Nd7 Qg2 Ng3 Qf1 Qf3 Qc1 Qd1 Nf7 Qad8 Rgf1 Bg5 Bed5 Qg8 Nb4 Qh6 Qc2 Qe7 Bd6 Qf3 Rb1 Ra1 Qc1 Nf5 Nba2 Re1 h1R+ Bh4 Rg1 Qd1 Qg2 Re6 Be5 Qef8 Qh3 Re7 Be6 Qh8 Qg2 Q6f6 h6 Qg5 Qg4+ Kg6 h5 Be1 h4 Ng3 h3 Bf1 h2 Qhh6 h1Q Kh7 Qg2 Qh1 Nh6 Qg6 Qh2
q1k2rBN/1RpnQnq1/b6R/R1r1b1Q1/1rP3K1/2b5/r2NB1q1/1R2rn2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 Ke2 Kd7 h4 g5 a4 b5 f4 e5 d4 g2 c4 e3 h5 g3 Kf3 b3 f5 g4+ Ke4 e2 a5 e1B a6 b4 h6 b2 d5 b3 h7 Bc3 f6 Bg7 Kf5 e4 a7 e3 d6 e2 f7 e1R f8Q Ba6 Bd3 Kc8 Bc2 Bge5 Ne2 g1Q Qe7 g2 Bd3 g3 Kg4 Nd7 Nd2 b1R Nf4 b2 Be2 Qe8 Ra5 Nh6+ Kh4 Qd8 Ng6 Rf8 h8R Nf7 Kg4 Qf2 R8h2 g1Q Nh8 g2 Qc1 Qf6 Rh6 Qg7+ Qg5 Qf1 Qc2 g1N Qe4 Nf3 Qe3 Ra1 Qc5 Rb8 a8B b1R Bd5 R8b5 Qe3 R1b4 Rg1 Bg3 Qe7 Ra2 Rgh1 Rc5 Be6 Qg2 Bd5 Nb6 d7+ Kb8 Be6 Kb7 Rg1 Qa8 d8R Nd7 Rgh1 Rea1 Rb1 Nh2+ Kh5 Nf1 Kg4 Nb8 Rd6 Nd7 Rb6+ Kc8 Rb7 Bge5+ Kh4 Nd6 Bg8 Nf7 Kh5 Qh2+ Kg4 Qf2 Rb3 Re1 Rb1 Qg2+
B1n3N1/3N2Q1/n1bP1Q1b/R2K1bNr/r2n2p1/1RNq2B1/bbr5/2b1b1k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 Kd4 a5 b5 d3 g5 a6 f5 e5 c5 a7 f3 e6 c3 e7 f4 e8N c4 h5 c2 h6 c3 h7 b3 Ba3 c1B Ng7 b2 Qe2 g3+ Ke1 g4 Rh4 f2+ Kd1 g2 Kc2 b4 Kb3 f3 Qd1 Ke3 Kc4 c2 d4 b3 d5 Bf5 Ra2 Na6 Rh2 Ne7 Rh4 Nc8 Nh3 g1B Ne8 Bh6 Nc3 b1N Bb4 b2 Ne2 Nc3 Ng5 b1B Nf6 Nb5 Bg2 f1R Ra5 Kf2 Nc3 Nd4 Rh3 Bb2 Bd6 c1B Ng8 Ba2+ Qb3 Bh2 Bg3+ Kg1 Bh1 f2 d6 Qe8 Bf3 Qe3 Kd5 Qd3 Bg2 Re1 Bh1 f1B Bg2 Bb1 Qb7 Re2 Qg7 Rc2 Qf6 Rb8 a8N Rb4 Bh1 Ra4 Nb6 Be2 Nd7 Bf1 Be5 Bg3 Bf3 Be1 Bg3 Be2 Nce4 Qd1 Bh2+ Kf1 Ke5 Ba2 Bh1 Bf8 Rb3 Bb5 Bg3 Qd3 Nc3 Kg1 Ba8 Bh6 Kd5 Bg7 Nh6 Rg8 h8Q Bf8 Nge4 Rg5 Ng8 Bh6 Qhg7 Rh5 Ng5 Bc6+
3Q2BB/KbN1bbq1/3rp3/b1n1r3/R5Q1/q3bPrN/bbnN4/R2Nk3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kg6 c4 Kf5 a4 Kf4 h5 d5 c5 g5 a5 b5 c6 e6 a6 b3 c7 b2 h6 g3 f3 b4 a7 b3 h7 e3+ Kd3 g4 Nc3 b1B+ Qc2 g2 Nd1 Kg3 Rh6 e2 Rf6 e1B Ra2 b2 Bd2 Qd7 Ra6 Ne7 Rg6 Ba2 Be3 b1B Ra4 Nec6 Be2 Rg8 h8N Ba5 Bc1 Bb7 c8N Na6 Rb4 Qg7 Rb5 Ncb4+ Kd2 d3 Ke3 d2 Qc4 Be7 Bd3 Nc5 Nb6 Raf8 a8Q Rf5 Rg5 Re5+ Kd4 Bc2 Bh7 Bg6 Qd8 Bf7 Nh3 g1B+ Ndf2 Bh2 Na8 d1Q+ Bd2 Qe1 Bc3 Qc1 Nd1 Qa3 Ng6 Kg2 Nc7 g3 Rg4 Bg1+ Nhf2 Bh2 Nf4+ Kg1 Rb6 g2 Ra6 Bg3 Ne2+ Kf1 Ne4 Bf4 Rh4 Bc1 Nd2+ Ke1 Ng1 Bb2 Nh3 g1B+ Nhf2 Bh2 Nh3 Bf4 Ra8 Qh8 Ra6 Rg3 Bg8 Bfg5 Qd3 Qg7 Qf5 Ne4 Qg4 Nc2+ Kd3 d4 Ra7 Bb1 Kc4 Nc5 Kb5 d3 Ra6 Be3 Ra7 Bb4 Kb6 Ba2 Ra4 Ba5+ Ka7 Rd5 Bf6 Re5 Rh5 Qf8 Bh8 Qg7 Nf1 d2 Rf5 Bbc3 Rff4 Ba1 Rfb4 Bad4 Rb1 Bdc3 Ra1 Bb2 Ndf2+ d1R Nd2 Rg5 Nb1 Rd2 Nd1 Rd6 Nd2 Re5
3B1nR1/B4b2/1rr1B1QQ/2R1nPn1/2bbK3/nr1B4/N2qp2n/2bN1bk1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 e2 a7 e1N+ Kd2 Ke4 c4 d5 c5 d3 h6 b3 h7 b2 c6 g4 c7 d4 Rh5 b4 Qa4 b3 Rh2 g2 Na3 b1N+ Kd1 d2 Ke2 d1B+ Kf2 b2 Kg3 Nd7 Qb3 d3 Nb5 d2 Na3 Ba6 c8Q Ne7 Nc4 Ng6 Qa3 Rb8 Qc7 Rb3+ Kf2 Nf3 Rh1 Ng5 Qac5 Bh6 Nf3 g1B+ Kg3 Ngf8 Ne3 Bde2 Ra2 d1B Q7b6 Na3 Qg6 b1R Qcd6 Bec4 Ne1 Qa5 Rh4 Qd2 Nc2 Bde2 Qdf6 Bf7 Nb4 Bac4 a8B+ Kd4 Qc6 e4 Kf4 g3 Rg4 g2 Rc2 Ne5 Na2 Rb6 Bb7 R1b3 Bc8 Bf2 Rc3 g1N Be6 N1f3 Rg3 Rg8 h8B Nh2 Bf6 Bed3 Bd8 Rg7 Qh7 Rg6 Bb2 Rf6 Qg6 Be2 Rc2+ Kd3 Bd4 Bg1 Bg2 Bf1 Qd6 Rc6 Ba7+ Ke2 Bf3+ Kf2 Be2 Rc5 Qa6 Rc6 Bd3 Rcb6 Bc8 Rfc6 Be6 Bb5 Rc5 Bc4 Rg4 Qa5 Nd5 e3 Ndc3 e2 Rg3 Ngf3+ Ke4 Bc1 Qh6 Qb4 Rg8 Qa5 Nb5 Qe1 Nbc3 Qd2 Bg5 Kg2 Nd1 Bd4 Bd8+ Kh1 Qb7 Be8 Qbg7 Bf7 Bg5 Kg2 Qgg6 Kg1 Bd8+ Ng5+
rb1r1rRr/3q2nk/4P2n/3n1N2/1KN5/QbnQrb1N/B1RBp3/2n3N1 w - - 0 1 illegal: No proof kernel
2R1BrRb/4B3/3B4/Q2Knb2/nq3q2/1qNPr1p1/1r1rn1Br/Q3rNk1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kd6 e4 Kc5 a4 Kd4 e5 g5 h5 b5 e6 f5 e7 c5 e8B g3+ Kf3 b3 h6 g2 h7 b2 a5 c3 d3 c4 a6 c2 a7 c3 Bg6 b4 Rh6 g4+ Kf2 f3 Ra6 f4 Ra5 b3 Be8 g3+ Ke1 f2+ Ke2 Qd6 Kf3 Qb4 Bf7 Bg7 Rh1 Nd7 Rf5 Ngf6 Bd5 Nc5 Re5 Bf5 Rh2 Na4 Na3 b1R Bb7 b2 Nh3 g1R Ng5 Rg2 Be4 Nd7 Be2 Rae8 a8Q Bf6 Bd2 c1N Qa5 c2 Nc4 Re6 Bf1 Ne2 Rc5 c1Q Ne3 Qc2 Qe1 Qcb3 Bc6 Rd1 Rh3 b1R Ne4 Rb2 Nc3 Rh2 Bg2 Rf8 Nf1 Bh8 Rh5 Re5 Rg5 Re6 Bc1 Rdd2 Rg8 Re5 Bd5 Re4 Bf7 Re7 Be8 Re6 Ne3 Re7 Rc8 f1R+ Qf2 Re1 Qg1 Bg6 Nf1+ Re3+ Kg4 f3 Qh1 Bf7 Kf5 f2 Qg1 Ne5 Qh1 Rb1 Ba3 Rbb2 Qg1 Q4c4 Be7 Qcb4 Nd5 Bg6+ Ke6 Bg7 h8B Bf6 Bg7 Bh7 Bh6 Bh8 Bhg5 Bg6 Bd6 Be4 Ke7 Bf5 Nc3 Rh5 Nh2 f1Q Bf6 Qf4 Nf1 Rh2 Qh1 Be4 Bh4 Nc6+ Kd7 Ne5+ Kc7 Bg6 Bhe7 Bf5 Bb5 Ra1 Be8 Re4 Ne3 Rab1 Qc1 Ra1 Nf1 Rab1 Qc2 Re1 Qb1 Rh3 Nh2 Ke3 Nf1+ Kf2 Qd1 Rh2 Qa1 Ng6 Kc6 Re3 Bh3 Kg1 Bg2 Q3a3 Kd5 Ne5 Rc5 Qa2+ Rc4 Qaa3 Rc8 Qab3+
3b2R1/k2n2qQ/4R2N/b2B2N1/K3p1Q1/brnqb2b/BN2P2r/N3r1qb w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 Kd2 e5 f4 b5 c4 g5 Kc2 d5 Kb3 Kd7 a4 Kc6 h4 Kb7 f5 g2 h5 d3 h6 g3 h7 d2 f6 d4 a5 d3 c5 g4 a6+ Ka7 c6 Qe7 c7 Nd7 f7 Rb8 Qe1 d1Q+ Kb2 d2 Ra5 b3 Ra4 b4 Nh3 g1B Bg2 Bb6 Bb7 g2 Rh2 g1B Na3 g3 Nf2 g2 Bd5 Ngf6 Rh6 Ne4 Nd3 Nc3 Re6 Ba5 Nc2 Bgb6 Na1 g1B Qh4 Bge3 Qe4 Bb7 c8Q Qg1 Qc7 d1B Qg4 Bc2 Ra2 Qf6 Ra4 Be7 f8N Qg7 Ra3 Bd8 Ra2 Bbc5 Ra3 Rg8 h8N Bb1 Nf7 Rh8 Ra4 Rh2 Nh7 Bc2 Nhg5 Bf8 Nc1 Bf5 Nd3 Bd6 Nh6 Bdc5 Qe4 Bh3 Qc8 Bc6 Qh7 Bf8 Bc4 Bh1 Bd5 Bfe7 Qc4 Rb5 Qg4 e4 Bc4 Rf5 Bd5 Rf1 Ra2 Re1 Bc4 Kb8 a7+ Kb7 a8B+ Ka7 Ra3 Nd1+ Kb1 b2 Kc2 b1R Qf3 Bf2 Ba2 Qf8 B8d5 Bfb6 Rc3 Bec5 Ngf7 b3+ Kd2 b2 Kc2 Bd6 Kb3 Ba3 Ka4 Bf2 Rg6 Bfb6 Rcc6 Be3 Rg8 Qfg7 Ng5 Nc3+ Kb3 Rbd1 Qg4 Rc1 Re6 b1Q+ Nb2 Qd3 Nc4 Nb1+ Ka4 Rc3 Nb2 Rb3 Qh4 Qd2 Qf4 Qd3 Qg4 Nc3+
1nKRB1r1/nr2Nn2/qRR1RB2/3r2QN/Pq2nnb1/kn1Q4/3p4/b1b5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 h4 Kc5 c4 d5 e4 f5 e5 b5 h5 g5 h6 d3 h7 d4 e6 f3 Kg3 d2 e7 f4+ Kf2 d3 e8R b3 Bb2 Kb4 c5 Bg7 c6 Qb6+ Bd4 b2 c7 Ra5 Ne2 g3+ Kg1 g2 Kh2 g1N Re7 g4 Nc1 f2 Re3 f3 Kg3 Nh6 Kf4 g3 Qe2 d1N Re7 g2 Kg5 Rg8 h8R Nf7+ Kf4 Qa6 Qe5 Bg4 c8Q Nc3 Qe4 Nge2+ Ke3 g1B Re6 Nf4 Ne2 Kb3 Ng3 b4 Qf8 Nb5 Nc3 b1Q Qd8 Qb2 Re1 Ka3 Bf6 b3 Rb6 Qb1 Qf5 b2 Ke4 Bh6 Bh3 f1N Qg5 Bd4 Nd5 f2 Ne7 Be5 Nh5 Nd2+ Ke3 Nb3 Ke4 f1N Qd7 d2+ Qd3 Bg7 Rc1 Bf8 Rcc6 Bg7 Rh2 Bc3 Re2 Ng3+ Ke3 Ne4 Re1 Bd1 Bd7 Bg4 Re2 Qd1 Re1 b1R Be8 Bb2 Re2 Qc2 Re1 Bc1 Re2 Qc3 Re1 Ne6 Re2 Nf8 Kf4 Qb4 Re1 Nfd6 Ke5 Nf7+ Kd5 Ng6 Re2 Bf3 Ke6 Bg4+ Nf5 Nbd6 Re3 Rd5 Re2 Nf4+ Ke7 Ne5 Kd8 Nef7+ Kc7 Nc3 Re6 Nce4 Bd8 Ba1 Bf6 Rb2 Ne7 Rc2 Rb7 Nb5+ Kc8 Rcc5 Qg7 Rd7 Qh6 Rcd5 Qg5 Qaa5 Rbb6 Rb7 Bd4 Qa7 Bf6 Qa6 Rc4 Nf2 Rcc6 Rg7 Bd7 Ne4 Rd8 Rg8 Be8 Na7#
1bN3q1/qk1b3b/1r1n1R2/1b1K1bpB/b1P1RN2/1qB3Q1/3B1n2/Qr2r2B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc6 a4 g5 a5 b5 c3 f5 h5 b3 e5 g3+ Kf3 b4 a6 d3 a7 g2 e6 b2 h6 d2 e7 d4 e8B+ Kb7 h7 d3 Qa4 d1Q+ Be2 d2 Qa2 b3 Bf7 Na6 Rh4 Rb8 Be6 Nh6 Qa3 Ng4 Bc4 Bd7 Rh1 Bd6 Qa5 Qg8 Rh2 Nc7 Rh6 Ne8 Bb5 Nf2 Nh3 g1Q Na3 b1R Ba4 b2 Qc5 Qdb3 Rf6 d1B Bd2 Bc7 Qe7 Nd6 Nb5 Re8 Qe5 Bb8 Na3 Re6 Nc4 Bc2 Ra3 Re1 Ra1 b1B Nb6 Bd3 Nc8 Bbc2 Qc5 Rb1 Bd1 Re1 Qa3 B3b5 Re6 Bcd3 Re4 Bbc6 Bb5 Bc2 Bd3 Ba4 a8Q+ Kc7 Ra2 Nh1 Bf1 Nb7 Re8 Qb5 Ne7 Bab3 Q8a6 Qa7 Qf6 Ba4 Nc8 Qbb6 Qe5+ Kc6 Qe3 Qbb3 Bc1 Bd3 Rf2 Bdb5 c4 Kc7 Kg2 f3+ Kh2 f4 Qa1 Kc6 Bg2 Kc7 Rf1 f2 Bh5 f3 Bd2 Kc6+ Re5 Kc7 Qf4 Kc6 Qg3 Kc7 Rg1 f1B Re7+ Kc6 Re3 Bd3 Rf1 Be4 Re2 f2 Bgf3 Nd6 Kg2 Kb7 Re3 Nf5 Re2 Qf8 Re3 Rg8 h8B Rg6 Bhc3 Qg8 Re2 Rc6 Re3 Bd3 Bd5 Nd6 Kf3 Bh7 Re2 Nf5 Ke4 Nd6+ Ke5 Bg6 Bdf3 Bh7 Re4 Rb6 Kd4 Nf7 Kd5 Nd6+ Re6 Red1 Re1 f1B Nf4 Nf2 Bh1 Bfd3 Re5 Bdf5 Re4 Qe8 Rg6 Re1 Rf6 Qg8+
2r1n3/Q1BQ1Q1n/q1RrQB2/Kpb1Nn1b/nn6/2r2q1R/1P1kqn2/N7 w - - 0 1 illegal: No proof kernel
4nBn1/b1q1B1R1/2rnQ1P1/k2N1q1n/3nR3/1brn2N1/4BpBq/K1rQ4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 d4 Kc6 Kd2 Kb6 Kc2 c5 Kb2 f5 e4 h5 g4 c3+ Ka2 f3 d5 c2 d6 h3 d7 c4 g5 b3+ Kb2 f4 e5 h4 e6 h2 g6 f2 e7 h3 e8B f3 Bf7 Ka5 Na3 b5 Bf4 c1N Be6 b4 Qe2 c3+ Kb1 b2 Bc4 Na6 Nc2 Qc7 d8B Nd3 Bg2 f1N Bh4 f2 Be7 Ng3 Bb3 Be6 Bd8 Nf5 Qe1 Bc5 Bd6 Rc8 Qd1 Ba7 Bf6 Nd4 Ne3 c2+ Ka2 b1N Bfe5 c1R Be7 Nd2 Bg7 Ne4 Bgf8 Nd6 Ne2 Rh7 Rg1 h1N Nd5 h2 Bc4 Ng3 Re1 Nh5 Ng3 h1Q Re4 Qh2 Rb1 b3+ Ka1 Rf7 Bb5 Rf3 Bc4 Ne1 Be2 Rc6 Rb2 Rfc3 Rd2 Bf7 Rd3 Be6 Rf3 Nd3 Rf7 Ne8 Rg7 Nac5 Rf7 Nb7 Rg7 Ka6 a5 b2+ Ka2 Kb5 a6 Nbd6 Kb1 Ka5 Ka2 Bb6 a7 Bf7 a8Q+ Ba7 Qb7 Rc1 Qbb3 b1Q+ Ka3 Be6 Qc4 Qb5 Ka2 Rc3 Ka1 Bf7 Nb6 Qe5 Qe6 Qf5 Qf6 Bb3 Nd5 Rb8 Qe5 Rb5 Qe6 Rbc5 Rf4 Rc2 Rh4 R5c3 Re4 Rc1+
rrr2q2/2B2PR1/qb6/nBkrB2r/1pB1r1R1/5nQ1/3Qn3/1b1KbNN1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 g5 h4 b5 f4 e5 c4 Ke7 h5 Kd6 f5 e3 f6 e4 f7 g3 h6 g4 a5 g2 h7 e2 a6 b3 a7 d3 Be3 g3 Bh6 b2 Na3 b1R Kd2 e1R Rh5 e3+ Kc3 e2 Kd2 Ne7 Be3 Ng6 Qc1 Nf4 Bf2 Nc6 Rc5 Na5 Nh3 g1N Re5 g2 Bg3 Nf3+ Ke3 g1R Nc2 d2 Rg5 d1Q Rg7 Kc5 Ra4 d5 Qd2 Rh1 Ng1 d4+ Kf2 d3 Ne3 Rg8 h8B Bf5 Bh2 Rc8 a8B Bd6 Bd5 Bc7 Bc6 Qf8 Be8 Bb6 Rb4 Nh5 Bc7 Nf4 Bd7 Qa4 Be6 Kc6 c5 Rh5 Rd4 b4 Bc4 Ra1 Re4 Qb5 Rd4 Qa6 Re4 Ne6 Reg4 Ned4 Bb5+ Kb7 c6+ Ka7 Qc2 d2 Qb2 d1R Qa2 Rd3 Qd2 Ne6 Bc4 Rd5 Bb5 Bb1 Bc4 Rc1 Bb5 e1B+ Ke2 Rcc5 Kd1 Ned4 Bfc4 Ne2 Nf1 Re8 Bd6 Re7 c7 Re4 c8Q Rc6 Qe6 Rc8 Qe5 Kb7 Bb3 Rb8 Qf4 Qd8 Bd7 Qd3 Bda4 Nc4 R7g5 Qe7 Bf6 Rgc8 Qg3 Qf8 Bc7 Ra3 Bd7 Raa8 Bfe5 Na5 Rg7 Qa6 Ba2 Nf4 Bb5 Ne2 Bd3 Kc6 Bb5+ Kc5 Bb3 Red4 B3c4 Re4
1RKn3r/q1prNP2/1n1kb3/B3r2Q/q4NB1/1b3r2/R2b1Qr1/2n1rN1N w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 e5 f4 b5 g4 h5 d4 b3 a4 b2 d5 c3 a5 h3 d6 h2 g5 c2 a6 h4 f5 h3 a7 b4 f6 b3 g6 Ne7 f7 Nec6 g7 Qh4 g8Q Bh6+ Qg5 Nd8 Bd2 c1N Na3 b1Q Bg2 b2 Qe1 Qa2 Nc4 b1B Bf3 Bc2 Ba5 Bb3 Ne2 Qa4 Rg1 h1R Ng3 Rh2 Ra2 Rg2 Nd2 h2 Ndf1 h1R Qf2 Rh3 Nh1 Kc6 d7 Kd6 Kd2 e3+ Kc3 e2 Qh5 Be3 Bg4 e1R Qhf5 e4 Qh5 Ndc6 d8N Rf3 Ne6 Nd7 Nf4 Rb8 a8N Nd8 Nb6 Bd2+ Kb2 e3 Nbd5 e2 Ne7 Qd4+ Ka3 Qb6 Nfg3 Qa7 Nf1 Bd5+ Ka4 Nb6+ Kb5 Bb3 Rb2 Bce6 Rc2 Rc8 Ra2 Qb8 Ka6 Rd1 Nhg3 e1R Rh1 Re5 Rh3 Rde1 Nh1 Nc6 Rh2 Rcd8 Rh3 Rd7 Rg3 Qf8 Kb7 Nd8+ Kb8 Rd3 Re3 Qg8 Re4 Rf3 Rb4 Qgg5 Nfd5 Qe3 Nf4 Nc4 Kc8 Qa7 Bf5 Qg4 Rb8 Qh4 Nfd5 Qe4 Nf4 Qc6 Bh3 Qa4 Bg4 Nb6+
4r3/N5Rr/3Qn2Q/2B1r1R1/1b1q1n1q/2Rqk1Pq/RKqNp3/3br1rB w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kf6 Kc2 Kf5 f4 h5 a4 e5 c5 d5 g3 b5 c6 e3 c7 Ke4 a5 b3+ Kb2 h3 a6 e2 f5 e1R f6 d3 a7 d4 f7 b4 Nd2+ Ke3 Ngf3 h4 Be2 h2 Ra3 h3 Ra5 e4 Ng5 Rh7 Ngf3 Nc6 Qc2 Qh4 Ka1 b2+ Kb1 Nf6 Rf5 Nd5 Bf1 Nd8 Qc4 Ne6 Ng1 Ndf4 Ka2 b1R Nb3+ d2 Qc6 d3 Bb2 d1Q Bh8 d2 Na5 Ba6 c8R Be2 Qc1 Qa4+ Qa3+ Rb3 Rg5 d1Q Rcc5 Qd4 Bg2 Re8 a8R Bd1 Nf3 Rd3 Kb1 b3 Nd2 b2 Rc3 Bb4 f8Q Rg1 Rg7 Re1 Rf1 h1Q Nc6 h2 Na7 Qh3 Ka2 b1R Rf2 Qf1 Bh1 Rc1 Kb2 Qe2 Bg2 h1Q Rg5 Qh4 Qh6 Q1h3 Bh1 Qd8 Rac8 Rg1 Re5 Kd4 Qa1 e3 Qa3 Bc2 R8c7 Rce1 Nc4 Bf8 Ka2 Bd1+ Kb1 Qf3 Ra2 e2 Kb2 Re3 Nd2 Re4 Qe7 Qd3 Rg5+ Ke3 Be5 Qd5 Bd6 Qdd4 Qd8 Re5 Rcg7 Be7 Qb6 Bd8 Qa6 Ba5 Bc5 Bb4 Qd6 Qc2+
q1k2r2/5Q1b/Kb5R/n2qrnBR/r3pr1P/1nNr2BN/3Q2n1/n3B2B w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 h4 g5 d4 b5 a4 e5 f4 c5 d5 e3 f5 b3 f6 e4 a5 b4 f7 c3 d6 b2 a6 b3 a7 c4 Nd2 b1Q Ba3 g3 Bb4 b2 Bc5 g4 Qe1 g2 Ngf3 g1R Ra4 g3 Bb4 g2 Nb3 c2 Qc3 c1N+ Ke1 e2 Kd2 e1N Qf6 c3+ Ke3 c2 Kd4 Qa1 Kc5 b1R Kb5 Nh6 Ra6 Nc6 Nbd4 Rb3 Ne2 Nf5 Ng5 Rd3 Nh3 Nb3 Nc3 c1N Ba5 Bh6 f8B Be3 Rh2 Bb6 Qf7+ Qe7 Be2 Rf1 Bf3 g1R Rf2 Rg5 Bh1 Ng2 Rb2 Kd8 d7 Qe6 Bd6 Rf8 Bg3 Rf4 Rc2 Kc7 Ra2 Kb7 d8B+ Bd7 Bb4 Kc8 R2a5 Qa2 Bf6 Na1 Bfe7 Ncb3 Bd8 Rb8 a8Q Be8 Qaa7 Ra8 Bf6 Rh5 Bg5 Qd6 Qd5 Bg6 Qaf7 Bh7 Qd4 Ra7 Qf2 Ra8 Qd2 Qd4 Bc5 Qd6 Bcf2 Qb8 Be1 Qb7 Ra4 Nca5 Rd4 Ra7 Rd5 Qa8 Rc5+ Rc7 Re5 Rc4 Rd5 Ra4 Re5 Be3 Rh6 Ba7 Ka6 Bb6+ Qa7 Qa3 Rb5 Qd6 Rd5 Qd8 Rb5 Qad5 Qf7 Qe8 Rc5+ Qec6 Rb5 Qa8+ Qa7 Ne7 Bf6 Qd7 Rg5 Qdd5 Rf5 Rg5 Re5 Rgg8 Reh5 Re8 Bg5 Rgf8 Rf6 Nf5 Rfh6 Qb8 Qg7 Re5 Qf7 Qba8+
qbk1B1BB/2r3nq/N4rbn/3P2R1/Nn2p2b/1n1n2Kb/3Q4/2QbR2B w - - 0 1 illegal: No possible last move
3B1q2/QpPQ1BK1/2Qb2b1/1b1rN3/3b1Q1r/3q1n2/nRR1nb2/1nNn3k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Ke5 h4 d5 c4 g5 a5 f5 a6 f3 Kg3 f4+ Kh2 f2 a7 f3 Kg3 b3 c5 d3 h5 d4 c6 b2 c7 d2 h6 d3 h7 Bd6 Qb3 d1N Be3 d2 Bc4 f1Q Nc3 b1N Bc5 f2 Nb5 Bf5 Ne2 Ne7 Ned4 Qf8 Nc3 Ng6 Qc2 Nf4 Ra3 Bg6 Nce2 Nc6 Nc1 Rd8 a8Q Ndc3 Qa7 d1N Rb3 Na2 Bf7 Qc4 Rc3 f1B Rh2 Qd5 Qd2 Bb5 Rc2 Qc4 Rb2 Qd3+ Qe3 Rd7 Rhc2 Rd8 Nde2 Nd4 Ng1 Nf3 Ba3 Kf6 e5+ Kf5 e6 Rd7 Qeb6 Ke4 e7 Rd8 Bb4 Rd7 Bc3 Rd8 Bf6 Ne2+ Kg2 g3 Kh3 g2 e8Q+ Kf4 Qd7 Ke4 Qbc6+ Kf4 Rc5 Ke3 Kg4 Kf2 Rcc2+ Kf1 Nh3 g1B Nf4 Bd4 Be7 Kg1 Bf6 Qc4 Nfd3 Kh1 Ne5 Qd3 Be7 Bf5+ Kh5 g4 Bf6 g3 Bg5 g2 Bf6 Qe7 Kh6 g1B Kg7 Bg6 Bg5 Bgf2 Bh4 Rhf8 h8Q Rfe8 Qh6 Rh8 Qf4 Rh5 Bf6 Rdh8 Nc4 Rd5 Ne5 Rh4 Bg5 Qe8 Bd8 Qf8+
6bR/1QBQq2r/2KbBbnq/Nn2B3/B3Rr2/1bq1rrpN/2P5/bk6 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 f4 Kd5 a4 Kc4 a5 g5 h5 e5 f5 d5 f6 b5 f7 g3 h6 g2 a6 e3 Kf3+ d3 a7 b3 h7 b2 Rh2 b4 Rh1 g4+ Kg3 d4 Bd2 e2 Bf4 e1B+ Kh2 e4 Qc1 b3 Bg3 e3 Be5 e2 Bc7 d2 Nf3 g1B+ Kg2 d1R Ra5 g3 Rf5 d3 Qg5 d2 Rh2 Be6 Nh4 Nc6 Kf3 Qe7 Ke4 Re8 a8B Bd4 Qf4 Na7 Qd6 Bf6 Qa6+ Nb5 Nc3 b1Q Bd6 b2 Bc6 Qc1 Qb7 b1B Rf4 Ba2 Na4 Bb3 Nb6+ Kc3 Ng2 Kb2 Nc4+ Kb1 Bc7 Bf2 Rfh4 B2d4 Nf4 Ba1 Bh3 Rf1 Na5 d1R Bd7 Bec4+ Bhe6 Rd3 Nh3 e1Q+ Re2 Rdf3 Re3 Bh6 f8Q Qc3 Qg7 Bf4 Rh5 Bd6 Rh4 Nd4 Ba4 Nb5 Re2 Qh6 Qf7 Qd8 Qd7 Ne7 Rh2 Ng6 Rh1 Rhf8 h8B Qe7 Rh2 Rf7 Bg7 Bg5 Be5 Bf6 Re2 Qhf8 Rh8 Qh6 Rd2 Rh7 Rd4 Be2 Rc4 Rf4+ Kd5 R1f3 Kc6 Bf1 Kb6 Bd3 Re4 Bdc4 Bg4 Bf7 Be6 Bg8 Bf5 Rd8 Qdc8 Ba3 Be6 Rdd3 Qd7 Bc5+ Kc6 Rde3 Bd5 Bb4+ Bc4 Bc5 Be6 Bd6+
4K3/1B5n/6Rq/knrN1NBb/n3qQQ1/1R1bnP2/R1p1n2b/2qqr2R w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 e5+ Kh5 c5 d4 b3 g4 h3 a4 h2 f3 c3 d5 c4 g5 b2 g6 c2 g7 e3 d6 c3 d7 e2 Nh3 e1Q Nd2 b1B Ra2 e4 Be2 e3 Bb2 c1Q Rg1 h1Q Nf1 Bd3 Rg2 c2 Rg3 Na6 Ba1 Bd6 Ra3 Nc7 Rg4 Nf6+ Kg5 h5 g8R h4 Bc3 Ra5+ Be5 Rc5 Rb3+ Nb5 Rb1 Ka5 Nf4 h3 Rg1 h2 Rg6 Re8 Nd5 Nh7+ Kh5 Qe7 Bf6 Qe4 d8Q+ b6 Qc7 Bg4+ Kh6 Bh5 Ng3 Re6 Bf1 e2+ Kg7 Qed2 Kf7 e1N Qd7 Qh6 Nf5 Ng2 Bg5 Ne3 Rb3 Re8 Bh3 Re5 Re1 Qg1 Qe2 h1N Qh2 Ng3 Rd1 Ne2 Qf4 Qe1 Qe6 Qed2 Rh1 Qdd1 Ke8 Bc7 Nfe7 Bd6 Qeg4 Re6 Qf6 Bh2 Qff4 Nbd4 Bf1 b5 Bh3 b4 Bf1 Ka6 a5 Kb5 a6 Ka5 a7 Nb5 Rc3 b3 a8R+ Na7 Bh3 b2 Rb3 b1N Bf1 Nbc3 Bh3 Na4 Bf1 Nd4 Be2 Ba6 Bb5 Ne2 Bc6 Bd3 Bb7 Rb6 Ra3 Rb1 Rb3 Qc4 Nf5 Ra1 Rb8 Nb5 Rb2 Qb4 Ra2 Qe4+ Nfe7 Nbd4 Qe5 Qa3 Ba6 Qf1 Rb3 Nb5 Nf5 Rd1 Bb7 Qc1 Kd7 Qe1 Qef4 Qed2 Kd8 Re1 Kd7 Qdd1 Kd8 Qb4 Ke8 Qe4+
N1R1N1Kb/2n2b2/rb4Q1/4b1nn/q1Qq4/BpnB3n/2N1R1P1/2rq2Nk w - - 0 1 illegal: No possible last move, all moves rejected
R1r2N2/bQ1b1r2/qr1RBnb1/Qb1qB1r1/1N1bpN2/n1N1k3/P1K2n2/8 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 c4 Kf5 g3 e5 c5 h5 c6 b5 c7 d5 Qe2 d3 Qe3 h3 Kd1 d4 Kd2 h4 Na3 h2 Qe2 e3+ Kd1 Ke4 g4 h3 g5 d2 g6 b3 g7 b2 f5 b1B f6 b4 f7 b3 Nc2 b2 Qf2 Bd7 c8Q Ra7 Qf6 Na6 Ne2 Qa5 Qb8 Nc7 Qfb6 Bc5 f8N Qa6 Qa5 Nb5 Ne6 Na3 Qd6 Nf6 Ng1 Rc8 g8N Rac7 Nf4 Ba7 Bc4 Rc5 Ke2 d1R Qe7 Rf1 Ne1 d3+ Kd1 d2 Ke2 d1N Ned3 Nf2 Bd2 Bc2 Bc3 b1R Qg7 Rb6 Nb4 Bca4 Ne7 Bab5 Neg6 Rd5 Nf3 Rdc5 Rg1 h1Q Nf8 h2 Nd4 Qg2 Qe7 h1B Rd1 Qg8 Rg4 Qd5 Rg8 Bg2 Qg7 Bgh3 Rd3 Bhf5 Rd2 Bg6 Qf7 Bh3 Qb7 Bhd7 Bb2 R5c7 Ba1 Rg1 Rh8 Rg4 Ke1 Rg2 Nde2 Rg5 Nc3+ Kf3 Rd4 e2 Kd2 e1B+ Kc1 e4 Bb2 Qf7 Be6 Ke3 Rd6 Qg8 Bf5 Qd5 Be6 Nc4 Kc2 Bd2 Nb1 Bc3 Ba1 Bd4 Bc3 Bc5 Be5 Bd4 Nc3 Bde8 Nh7 Rf7 Rf8 Bed7 Rg8 Rcc6 Ra8 Rc8 Nf8 Na3+
n3b2n/2B1K2n/b3B3/2RQn2b/k1P4q/N3N1R1/3bN1rp/1r1qnNQq w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 f5 Kf3 h5 a4 d5 e4 Kd7 g4 Kc6 e5 b5 e6 b3 c3 b2 e7 h3 e8N h4 g5 b4 a5 b3 g6 h2 a6 h3 a7 d3 g7 Kb5 Qd2 d4 Ra4 Nf6 g8Q Bb4 Qe2 Nbd7 Ra1 Rb8 a8N Ne5+ Kf2 f3 Kg3 f2 Kf4 Nh7 Na3+ Ka4 c4 b1N Nac7 b2 Ne6 d2 N8g7 d1B Be3 d3 Nf8 d2 Nd7 Nc3 Qd5 b1B Bd4 Ba6 Ra2 Ne4 Ra1 Nd6 Bb2 Rg8 Qb7 Qh4+ Qg4 Ndf7 Bc1 Nh8 Bd3 f1N Nh5 Ne3 Ndf6 Nc2 Ne2 Ne1 Rg1 h1Q Nhg3 h2 Nd5 Rg5 Nf1 Rg7 Ke3 f4+ Kd4 f3 Rg3 f2 Bf5 Bbc2 Bc8 Bg6 Be6 Be8 Nde3 Ba5 Qd5 Rb1 Kc5 Bc3 Nd4 Rg6 Qg5 Bh5 Kd6 d1Q Ne2 Bd2 Ra2 Rg7 Rb2 Rg8 Rb5 Rg7 Rc5 Rg8 Rh3 Rg6 Qg1 Rg2 Nfg3 f1N Bb2 Nd7 Be5 Nb6 Bf4 Na8 Be5 Qd4 Ke7 Qf4 Bc7 Qe4 Ng4 Ne3 Nf1 Qd4 Rg3 Qf4 Nh6 Ng4 Nf5 Ne5 N5e3 Qh4+
bNqq2n1/r3B1Nq/2q2NR1/bKnQ1B2/1PQ4b/k1q1p1n1/1r5R/4nN2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 e5 g4 Ke7 c4 Kd6 f4 Kc5 g5 Kb4 c5 d5 c6 a5 g6 h5 f5 e3 Kd3 a3 c7 a2 f6 h3 f7 h2 g7 e2 b3 e1N+ Kd2 d3 Qc2 e4 Qd1 h4 Nh3 d4 Qg4 e3+ Kd1 d2 Ke2 a4 Qg2 a3 Rg1 h1Q Qg3 Be7 f8N Nd7 Qe5 Nc5 Ng6 Bb7 c8Q Qc6 Bb2 Ra7 Nhf4 h3 Qd5 h2 Ne6 h1N Ne5 Ba8 Bh3 Bh4 Bf5 Qdd7 Qa6 Qdc8 Rg6 Rh6 Nd7 d1Q+ Kf1 d3 Bf6 d2 Nb8 Qg4 Be7 d1Q Nd2 Qh5 Rb1 a1B Rb2 a2 Qac4+ Ka3 b4 Rh7 Rc2 Be5 Rb2 a1Q Rc2 Nh6 g8N Bc7 Ng7 Ba5 Nf6 Ng8 Rb2 Rh8 Rc2 Qh7 Rb2 Qc2 Ke2 Qc3 Nf1 Qa2 Kd1 Ng3 Rh2 Qe5 Kc1 Qec7 Kd1 Q7d8 Kc1 Qb2+ Kd1 Qe5 Kc1 Nf3 Kc2 Qec7 Kc3 Ne1 Kd4 Nb7 Nd2 Q6e6 Ngh5 Qhf7 Qc2 Bg5 Rh4 Rh6 Rh3 Qh7 Ng7 Qa6 Rh1 Rh2 Nf1 Bh4 Qc5 Rg2 Rh2 Rb2 Kc3 Qad6 Kc4 Qe5 Kb5 Qc3 Qcd4 Nc5 Q4c4 Qc6+
5n1r/QQ2KRbk/1Qbb1n1q/BQ3Rb1/NP1qp2n/3B3q/3Nb3/r2n4 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Kg6 c4 d5 f4 e5 b4 a5 c5 h5 f5+ Kh7 f6 d3 Kc3 h3 c6 h4 c7 e3 f7 e2 g5 e1N Bf4 d4+ Kc4 a3 Nd2 a4 Rb1 e4 Rb3 a2 Qb1 a1B Qc2 a3 Qc1 h2 Ne2 a2 Qa3 h3 Nb1 d2 Nec3 d1B Na4 d3 Nd2 Nd7 Kd5 Nf3 Ke6 Bb7 c8Q Ngf6 Bc7 Nh4 Ba5 Bd6 f8Q Be2 Qe8 Bc6 Qb7 Bd4 Rc3 a1B Rc5 Be3 Rf5 Bae5 Rg1 h1Q Rg3 h2 Rgf3 Qb6 Qa1 Qd4 g6+ Kh6 g7 Bg5 g8Q Nf8+ Kf7 Qg2 Qd8 h1Q Qdb6 Qgh3 Qa2 Ra6 Qc4 Q1h2 Qcb5 Qf4 Nb1 d2 Qg7+ Kh5 Rf2 d1N Nd2 Ra8 Qg8 Kh6 Rf3 N8h7 Qgb8 Nf8 Q8a7 Kh7 Rf2 Bh6 Rf3 Bg7 Rf2 Qh6 R2f3 Bf4 Rf2 Bf3 Bd3 Bg5 Rf1 Be2 R1f3 Bc7 Ke7 Bh2 Qab8 Ra6 Q8a7 Bd6+ Kf7 Qg2 Re5 Qh2 Nc5 Bc7 Ke7 Ne8+ Rf6 Be3 Rf7 Nf6 Rf5 Be5 Q6c7 Qh3 Bb6 Ra3 Ba5 Bg5 Qcb6 Ra1 Na4 Bd6+
k2B4/r1Q1qq2/4Nb2/5rNB/rprq1B1P/1bBQ1bb1/Rn2b3/1R2n1K1 w - - 0 1 illegal: No proof kernel
R4r1R/qr3b1N/qr1N1QQ1/2KbN1n1/Prqp2B1/4n1b1/4NBk1/4q1r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 e4 Kg5 g4 b5 a4 d5 e5 h5 e6 f5 c5 d3 e7 b3 e8Q d2 c6 b2 c7 f3 Ke3 f4+ Kd4 h3 Qb3 Kh4 g5 Kg3 g6 d1Q+ Qd3 h2 g7 h4 Bd2 b4 Nc3 b1R Qh7 h3 Ra3 b3 Qe5 b2 Qc2 f2 Qe8 f3 Qe2 Ra6 Qe7 Nd7 Qd3 Ne5 Be1 Ng4 Qd2 N8f6 g8N Nh7 Qb4 Qe7 Nh6 Rb6 Nf7 Be6 c8N Ng5 Ra2 Qa7 Bb5 Bd6 Qa5 Kg2 Bc6 Ne3 Ne5 Bf7 Qd3 f1Q Bd7 f2 Bg4 Rf8 Nge2 Bb8 Kc5 d4 Qaa6 Qd2 Nf3 Bg3 Ne4 Qd1 Ne5 Qc1+ Bc3 Qfe1 Ncd6 f1Q Nf6 Qc2 Nh7 Qf6 Rf1 h1R Ra3 h2 Qg6 Rg1 Rf5 h1B Rb3 Nh3 Rh5 Ng5 Rb5 Qd3 Ra5 Qe6 Rh3 Rb7+ Qb6 Qda6 Bd2 Ra1 Bc3 b1R Qf6 Rb4 Rh6 Qf2 Be1 Rab1 Qg6 Qf1 Bf2 Qe1 Qf6 Kf1 Qg6 Bd5 Rh4 Kg2 Rh1 Qb8 Qd8 R4b6 Qdf6 R1b4 Rh4 Qd3 Ra7 Qa6 Ra8 Qba7 Rh3 Bc6 Rh4 Nf3 Ng5 Qa2 Rh6 Bcd5 Rh8 Qb3 Nh7 Ng5 Bh5 Qa2 Bg4 Q2c4+
Nn2N3/1k4br/b1n4R/1r1n1N1P/q1p2b2/1q2b1r1/1N1Kn1BB/1R1QQ2n w - - 0 1 illegal: No possible last move, all moves rejected
K2rBq2/R2qk3/1qr1q2n/nQ1r1Q1p/1bP5/1bN4Q/N1Rb1b2/Q2qB3 w - - 0 1 illegal: No possible last move
1rq4N/R5q1/b4rr1/2bBrP2/qQN1bB1n/4QB1K/q1Bq2Rp/1n5k w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 c4 Kf7 a4 Kg6 f4 Kf5 Kf2 b5 a5 e5 c5 d5 c6 h5 c7 e3+ Kf3 d3 g3 h3 a6 h4 a7 d4 Ra6 d2 Ra3 b3 Ra2 e2 Nc3 e1Q Nd5 d3 Bg2 h2 Bb2 b4 Ra5 h3 Bc1 b2 Rb5 b1Q Qc2 d1Q+ Qe2 d2 Nf6 b3 Ne4 b2 Rb6 Ba6 c8Q+ Nd7 Rb3 Rb8 a8B Rh6 Rb7 Nf6 Nc5 e4+ Ke3 Qa4 Qc7 d1Q Bf3 Ne5 Ra7 Q1d7 Ne6 Ng6 Ng5 Q8c8 Qd6 Qba2 Qb4 b1R Bd5 Nh4 Nf7 Rg6 Nh8 Qed2+ Kf2 e3+ Kf1 Ne4 g4+ Kf6 g5+ Kf5 Bb3 Bc5 Bc2 Qg7 Qd3 Rf6 g6 Rb3 Qe2 Rd3 Qe1 Nc3 Qe2 Nb1 Qe1 Ke6 f5+ Ke5 Qf2 Rdd6+ Qe2 Qe7 g7 Rde6 g8B Qg7 Qd3 Rd6 Bc4 Kf4 Bcd5+ Kg3 Bfd1 Qh7 Nf3 Qg7 Ne5 Rg6 Nc4 Rdb6 Bg2 Rbf6 Rg1 h1B Bd5+ Kh2 Be2 Bf3 Rg2+ Kh1 Qdb3 Be4 Bf3 h2 Qd3 Qcd7 Qd4 e2+ Kf2 Qd1 Bf4 e1R Qe3 Qe8 Bg4 Qc8 Kg3 Qd2 Kh3 Re2 Bf3 Bd3 Qf2 Re5 Qe3 Be4
2n1Qr2/N1r1b2r/2n4Q/N3P3/1rq5/Q1RqKbk1/q1Rpn1r1/QBB2q2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 g4 Ke6 a4 Ke5 e4 d5 c4 f5 g5 h5 a5 b5 c5 h3 a6 f3 c6 h4 c7 h2 g6 f4 a7 d3 g7 b3 Ne2 d4 Bd2 b4 Ng3 b2 Ne2 h3 Nbc3 b1R Ra3 b3 Nc1 b2 N1a2 Ne7 g8Q Nbc6 Rb3 Rh7 Qe1 Bb7 Ra3 Nc8 Qg1 Be7 Be3 d2 Na4 d1R N4c3 d3 Nd5 d2 Nab4 Rdc1 Nc3 Qd3 Qg6 Rb8 Rg1 h1R a8Q h2 Nb5 Rc3 Rg4 Rg1 Qh6 h1Q Rg3 Qh4 Ra2 Rc4 Ba7 Rbc1 Qe3 b1Q Rc2 Qa2 Bc5 Rb1 Be2 Rb2 Na7 Rg2+ Kf1 f2 Rh3 Nd6 c8Q Qg4 Qd7 Rf8 Qde8 Nc8 Qf3 Qe6 Qg3 Rc3 Qe3 Qec4 Rg3 Qdd4 Bd3 Rbb3 Ke2 f1N+ Kf3 Rb2 Rh3 Ng3 Qe1 Ne2 Qa1 Rgg7 Rg3 Qd8 Kf2 f3 Ke3 f2 Rf3 Qd6 Rh3 Rg2 Rf3 Qg6 Bd6+ Ke6 e5 f1Q Bc5 Nb8 Nbc6 Rb4 Na5 Nc6 Rb2 Rc1 Bb1 Rc2 Rg3 Kf5 Rh3 Kg4 Bd6 Rb5 Ba3 Rc1 Rc2 Rb4 Rc3 Rc2 Bc1 Qd6 Rh4+ Kg3 Rf4 Nd8 Rh4 Bf3 Rd4 Nc6 Rdd3 Rcb2 Rc2 Rb7 Rdc3 Rc7 Qb7 Qdd5 Qb3 Qd7 Qa4 Rb4 Qa3 Qdd3+
1b3k1r/q2R1b2/1q6/Q2pPK2/nn3qnR/1n2B3/R1rq1N1Q/1n2NrRB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 d5 g4 h5 e4 f5 a4 b3 c4 b2 c5 d3 a5 h3 g5 h2 c6 d2 c7 h4 e5 h3 a6 b4 g6 b3 g7 Nf6 g8R Be6 c8Q Ng4 a7 Nc6 Rg7 Bd6 Qb7 Rc8 a8R Bb8 Be2 Bf7 Qb5 Kf8 R8a5 Qb6 Rg6 Nb4 R1a2 Rc2 Qf1 d1Q Rd6 Qd2 Nc3 b1N Qc5 b2 Na4 Nc3 Ra8 b1N Nb2 Na4 Qa5 Qa7 Bd1 Qb6 Rd7 Qa7 Ne2 Qb6 Rg1 h1R Qe1 h2 Nd3 Qa7 Qg3 Qb6 Re1 Rf1+ Nf2 h1Q+ Qg2 Qhh6 Qh2 Qa7 Ng1 Qhb6 Re4 Qe1 Be3 Qd2 Kg2 f3+ Kg3 Na6 Kf4 Nb4 Kg5 f4 Kf5 Rh6 Nd3 f2 Ne1 f3 Nh3 Rh8 Rf4 Rh1 Ra1 f1Q Nf2 Qc4 Be2 Rg1 Bd3 Rf1 Be4 Qcd4 Nd1 f2 Bh1 Rg1 Re4 f1N Ra2 Qf2+ Rf4 Nfd2 Ra1 Qf1 Nf2 Nb3 Re4 Qd2 Rd4 Nf6 Rh4 Ng4 Ra2 Qc4 Ra1 Rf1 Ra2 Qac7 Ra6 Qba7 Rg6 Qcb6 Rg7 Nf6 Rg2 Ng4 Rg1 Qf4+
k1b1n1R1/NR4r1/1qbN1B1K/P5qB/b2QqR2/q1p2rb1/Rr6/1bQ2n2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 e4 b5 a4 Kb7 d4 c5 g4 f5 e5 h5 e6 c3 g5 h3 d5 h2 d6 c4 d7 b3 a5 b4 g6 h4 e7 c2 e8Q c3 g7 b2 Nd2 b1B Ra3 h3 Qe3 b3 Ra2 b2 Be2 Nc6 Qd3 Rh7 Nb3 Nce7 Qe1 Rb8 Bd2 c1Q Be3 Ka8 Ra4 Nf6 g8R Ned5 Bc5 Rg7 Re4 Ne3 Bd1 Bd6 Rge8 Nf1 R8e7 Ne8 Ne2 Rb4 Rg1 h1B+ Rg2 h2 Nd2 Be5 Rf7 Qg5 d8R Bc2 Be3 b1B Nc4 Ba4 Nd6 Qa3 Bd4 Rb5 Rb7 Rb2 Nf7 Bd6 Bf6 Be5 Qd4 Bb8 Kf2 f3 Nd6 f4 Qed2 Bc7 Qc1 Bb8 Qdd2 Bc7 Nd4 Bb8 Nc6 Bc7 Ke1 f2+ Ke2 Bb8 Na7 Bc7 Qdc2 f3+ Kd3 Bb8 Rf4 Bc7 Ke4 Bb8 Rg1 Bg2 Qd3 h1Q Ndb5 Be5 Nd6 Qhh4 Rh1 Qhg4 Rh2 Qe6 Nc4 Qb6 Nd6 Bh1 Rf5 Bg3 Rf4 Ne3 Rg2 f1R Rc2 Bg2 Qd4 f2+ Bf3 Bh3 Bh5 Bhd7 Kf3 Bdc6+ Re4 Nc7 Rg8 Ne8 Re2 Rh1 Rc2 f1Q+ Rf2 Qe1 Rd2 Bcb5 Rf4 Nf1 Re2 Rh3 Rg2 Rb3 Ra2 Bc6+ Qd5 Bcb5 Bf7 Rh2 Qd4 Rbb2 Bg6 Qd2 Bf7 Qc2 Bg6 Rd2 Bf7 Rd3+ Ke4 Qh6 Bh5 Bc6+ Ke5 Rd7 Kf5 Rf3+ Kg4 Qe4 Nf7 Qhf8 Kg5 Qfc5+ Kh6 Rc7 Nd6 Rg7 Rf7 Qcb5 Rb7 Qg5+
n1nBQN1N/4qq1B/knR1pR2/2r2r1P/4N2b/1qrKN3/3nQ1n1/1b5r w - - 0 1 illegal: No possible last move, all moves rejected
q1r3Qq/1q3n1K/br1Pn1Q1/4QB2/2Rn1N1Q/1rp1b3/1n1kq1nB/2R1N3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 Kd4 e4 f5 a4 b5 g4 c5 g5 b3 g6 f3 g7 b4 a5 b2 d3 b3 a6 f2 a7 f4 e5 h3 e6 c3 e7 c2 e8Q h2 Bg2 f1Q Qde1 c4 Qa5 c3 Bf3 Qf6 Bb7 f3 Qe2 f2 Qf3 Qe2 Ba6 f1N Nh3 Nh6 g8Q Nf7 Nf4 Bc5 Ng2 Ne3 Nf4 Nd7 Qe8 Nf8 Qc6 Ne6 Re1 h1Q+ Nh3 Ng2 Qb7 Rb8 Qa8 Rb6 Na3 b1R Bf4 c1N Bh2 b2 Qc6 Nb3 Qg4+ Ke3 a8Q Kd2 Rc1 Be3 Nc2 Nbd4 Ra4 h6 Bb5 Ba6 Rc4 Rc8 Ba4 Rb3 Ne1 Rb6 Bc2 Rb3 Qcf3 Rb6 Qg6 Rb3 Kg4 h5+ Kg3 Ngf4 Qfg4 Rb6 Qb8 Nf3 d4 Rd8 d5 Nfd4 d6 Qc6 Qag5 Qa8 Bg1 Rf8 Qh7 Re8 Qf3 h4+ Kg4 Rh8 Qe5 Rf8 Ng5 h3 Bf5 h2 Qh4 h1Q Bh2 Rh8 Qf8 Rg8 Qg7 Re8 Qg8 Rc8 Qhh7 Qhg2+ Kh4 Qh1 Qg4 Qhb7 Qhg6 Ng2+ Kh5 Ra1 Bb1 Ra3 Nh3 Rab3 Bf5 b1N Nf4 Ned8 Rb4 N8e6 Ra4 Na3 Rb4 Qd3 Qh4 Nc4 Ra4 Nb2 Rc4 Nh8 Kh6 Nf7+ Kh7 Qf1 Qhg4 Qe2 Qh4 Qh8+
2BRbBR1/5rBK/r1rP1Q2/2p3b1/1NbN4/Q1q2q1b/2qb1B2/n3rkn1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 a4 g5+ Kg3 Ke5 h4 Kd4 f4 c5 f5 e5 d3 e3 a5 e2 f6 e1Q+ Kg2 e4 a6 c3 f7 b3 a7 c2 h5 e3 h6 b2 h7 g3 Kf3 g4+ Kf4 e2 Rh4 g2 Nh3 g1Q Ra4+ b4 Na3 b1B Nc4 g3 Bg2 b3 Rh6 b2 Re6 Qe3+ Kf5 Ba2 Kg6 b1B Rc6 Bh6 f8B Na6 Nf4 Nb4 Ne5 Qc3 Be4 e1R Qh5 g2 Qg5 g1R Bf5 Bc4 Bd7 Rgf1 Bd6 Nf6 Raa6 Ng4 Nd5 Rf7 Qf6 Bg5 Bf8 Nh2 Rd6 Qf3 Bf4 c1B Bg3 Nc2 Nb4+ Ke3 d4 Ke2 d5 Qe7 Nec6 Kf1 Bf2 Bcd2 Nd4 Qee2 Bg4 Bba2 Rd8 Na1 d6 Bd7 Rb6 Be8 Bc8 Be6 Rb8 Bac4 Bg7 Rg8 h8B Bh3 Kh7 Rgf8 Ndc6 Rc7 Nd4 Rc6 Bh6 Rf7+ B8g7 Ra6 Rb7 Rb8 a8Q Rc6 Qa3 Ra8 Rb8 Raa6 Kg8 Qed3 Bf8 Qdc2 Bhg7 Qg3 Ra8 Nf3 Kh8 Ng1 Rb8 Q2b2 Kh7 Qbc2+ Bf5 Re6 Rdc8 Q3b3 Be7 Bd7 Rg8 Be8 Rd8 Qbc3 Bf8 Re4 Bd7 Qgf3 Bc8 Re1+
N3qr1R/1r1N4/Kp1N1b2/qBN1qqr1/2qQQ2n/2nr3P/bBkb4/6R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 c4 g5 a4 f5 h3 d5 a5 b3 c5 b2 e3 g3 c6 g2 a6 b6 c7 f3 a7 d3 Qe1 g4 Bd2 f2 Qc1 d4 Qc5 g3 Ra3 f4 Qb4 f3 Rb3 Nf6 Rc3 Qe8+ Rc6 Be6 c8N Ba2 Qb3 Nd5 Bc3 d2 Ne7 d1R Qc2+ d3 Ng8 Bb4 Rh2 Nd7 Nh6 Nf8 Be5 Ng6 Qc3 d2 Qa3 Rh7 Bg7 Nc3+ Ka6 Nh4 Bb5 f1Q Qa4 f2 Nf3 g1R Rh1 g2 Ne5 Qc4 Rc8 f1Q Nd7 Kd3 e4 Qf5 e5 Be7 e6 Bf6 Qb4 Kc2 e7 Rb8 a8N Rh8 Nc5 Rb7 Nd7 Rf8 Nf7 Rgf1 Ng5 g1B Ne4 Be3 Nec5 Rg1 Rd8 Rg5 Rg1 Rf1 Rc8 d1Q Nd2 b1Q Nde4 Qdd4 Nd6 Rf3 Rd8 Qde5 Bh8 Qce6 Qd4 Bd2 Rc8 Rd3 Rd8 Qeg6 e8Q Qc4 Rb8 Qbb4 Rc8 Qg3 Qee4 Qge5 Rd8 Rf7 Rg8 Rf8 Bg7 Qgf7 Rh8 Qfe8 Bh6 Rg7 Rg3 Be1 Bc1 Bd2 Bb2 Rg5 Rg1 Qa5+
kr5n/2r3PN/1qb2R2/1Bq1B1b1/3R3n/1R3pK1/qbNQ4/Q1bqnRb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 e4 Kc6 b4 Kb7 d4 c5 g4 h5 d5 f5 b5 a5 e5 h3 g5 a3 g6 h4 b6 a2 g7 a4 e6 h2 e7 f3 e8Q f4 d6 c3 d7 c2 Qe3 a3 Qed4 c4 Nh3 c3 Ng1 h3 Qc4 Ra7 Qcd3 Ka8 Qd6 Bb7 Qh6 Nc6 Bc4 Nce7 Bd3 Nf5 Bf1 Bc5+ Qd4 Nge7 Qd6 Ng6 Qe6 Bc6 Qe4 Rc7 Qe8 Nfh4 Bb2 c1B Qee3 c2 Ke1 f2+ Ke2 f3+ Kd3 Qe7 Qf6 Rb8 d8R Nh8 Rd4 Qe6 Qe1 Bg5 Qd2 c1B Be2 f1N b7+ Ka7 Qe5 Ne3 Bc3 Nc2 Bb2 Be8 Ke4 Ne1 Bb5 Qb6 Qf6 Bc6+ Ke5 Rd8 b8R Rf8 Rb7+ Ka8 Bc3 Rb8 Bb2 N4g6+ Kf5 Nh4+ Kg4 Be7 Kg3 Bc5 Re4 Bce3 Be5 Qc5 Rd4 Qb6 Ne2 Bg1 Nbc3 Qc5 Rb1 a1Q Ne4 a2 Rb3 Qb2 Rb6 a1B Rdb4 Qa3 Nd4 Qa2 Nc2 Bab2 Rd4 B1e3 Rf1 h1Q Qd6 h2 Nf6 Bg1 Nh7 Ba1 Kg4 Bab2 Qf6 Qg2+ Bg3 Qf2 Be5 Qe3 Kg3 h1Q Qg6 Bd7 Rf6 Bc6 Qgd3 Qb6 Q3e2 Qc3 Qh2 Qcc5 Qc3 Ba3 Qa1 Bab2 Qd2 Qh2+ Kg4 Qe2 Kg3 Qd1
r1R1Q1qk/3Pb3/1bKp1nR1/1rR2Q2/B7/1bNnB2r/N2nqbb1/1n5R w - - 0 1 illegal: No proof kernel
bN2nb1K/r2p1qR1/N4Rrk/1bP2Rnb/B2r1B1r/1n1rQR2/q7/2Q5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 h5 Kf3 b5 Ke4 f5+ Ke5 Kf7 g4 Kg6 c4 d3 e4 d2 a4 b3 g5 b2 a5 b4 c5 f3 a6 h3 a7 h2 Qe1 d1B Qd2 f2 Qe2 f4 Qc2 h4 Nd2 b1R Qa2 b3 Nh3 b2 Bb5 f1B Nb3 f3 Bd2 f2 Bf4 Bb7 Na5 Rh6 Qa3 Bh5 Nc6 Na6 Nb8 Qa5 Ba4 Bb5 Rf1 h1R Qe3 Nc7 Qc1 Kg7 g6 Ne8 Ng5 h3 Ra3 h2 Rf3 Ngf6 Kf5 Qa6 e5 Ne4 e6 Rg1 e7 h1R Ke5 Rg4 Kf5 Rhh4 Ne6+ Kh8 g7+ Kh7 g8R Rhg6 Nc7 Ng5 Rg7+ Kh6 Ke5 Ra1 Kf5 b1N Ke5 Qa5 Nca6 Nd2 Kf5 Nb3 Ke5 Nc7 e8Q Ra3 Kf5 Qd2 Qe3 Qa2 Ke5 Rd6 Kf5 Rd4 Kf6 Rg1 Rd1 f1Q Rd2 Rc4 Rd5 Rd4 Rf5 Nd2 Rg8 Rad3 Rg7 Nb3 Nc6 Rb8 a8R Rg2 Ra7 Ra8 Ncb8 B7c6 Rb7 Ra7 Rb6 Ne8+ Ke5 Qfe2 Qh1 Qa3 Rff7 Qb4 Rg8 Qed2 Rf5 Qa2 Qhc1 Qc4 Rg6+ Kh7 Rg8 Ba8 Rd6 Nh3 Re6 Nc7 Kf6 Rg6+ Kf7 Qb4 Ref6 Ne8 Rg5 Kh6 Rg7 Qc3 Kg8 Qc4+ Kh8 Qf7 Rgf5+ Ng5
1kb1NQQB/rbNp3P/BR6/r1r5/q3b2K/7n/n2b2n1/N2rqRNb w - - 0 1 illegal: No possible last move
n1b1rQBK/5N1n/1p6/4B1n1/bRQ2nRQ/b1b2N1r/bP2Q3/k1n1b1q1 w - - 0 1 legal: proof: f4 e5 d4 exf4 a4 h5 g4 hxg4 a5 c5 a6 cxd4 Qd3 Qa5+ Qd2 Qxa6 Qd1 Qa2 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Kd5 h4 g5 h5 a5 e3 a4 h6 f3 h7 a3 c3 f4 Qd2 b6 Qf2 g3 Qc2 g2 Rh3 g4 Qe2 f2 Qd2 g3 Ne2 g1B Rh4 g2 Qd1 f3 Qd2 Na6 Qc2 Nc7 Ng3 Nf6 Be2 f1B Nh5 f2 Nd2 Qb1 Rh2 a2 Nb3 Ba3 Ng3 d6 Kd2 d3 e4+ Kc4 Ke3 d5 Kf4 d4 Kg5 Re8 h8Q Nh7+ Kg6 Ra4 Kg7 Na8 Bf3 d2 e5 d1N e6 d3 e7 d2 Bb7 Ne3 Ne4 d1B Nd4 Nd5 Rh4 Nf4 Ng5 Ra5 Qe4 Ba4 Ndf3+ Kb3 Nf7 Bc4 Bd5 f1N Qe2 Nd2 Rg4 Bf2 Be6 Bd5 c4 g1B c5 Ne4 c6 Be1 c7 Neg5 Be3 Bc3+ Bd4 Bf2 Be5 Qg1 Qf8 Rc5 Kh8 Bfe1 Rd1 a1N Rd4 Ka2 Rb4 Rc4 Qf2 Rc6 Qh4 Bc4 Bd5 Rh6 Be6 Nb3 Bd5 Bf5 c8Q Nc1 Be6 Bcb3 Qc4 Ka1 Bd5 Ba2 Be6 Rc8 e8Q Rd8 Qeb5 Re8 Qe2 Rh5 Qbc4 Rh6 Nd8 Rh5 Bg8 Bc8 Nf7 Rh6 Qhf2 Rh1 Qh4 Rh3
2RnkBN1/3Nq2n/4bb1K/Qrqbq2r/2rnQ1Qb/2R3p1/nQ4P1/7B w - - 0 1 illegal: Other
2QnQ3/bnBRR1r1/4q3/4brN1/2BPKr2/b5q1/bpnN3k/R1R2nq1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 e4 Ke5 g4 h5 a4 f5 a5 b5 g5 c5 a6 h3 d3 b3 a7 b2 g6 h4 g7 h2 Bh3 b4 Bd2 c3 Qb3 c4 Ne2 c2 Qa2 c1B Rg1 h1Q+ Rg2 b3 Qa5+ Bc5 Ra2 c3 Qb4 c2 Qa4 Na6 Be3 Nh6 g8R Qe8 Na3 b1N Nd4 Nf7 Ndb5 Qh2 R8g3 Rf8 Ra1 Bb2 Nc7 c1B Rg6 Qe6 Qc6 Nd8 Rc2 Qg3+ Ke2 f3+ Kd1 f2 Ke2 f1R Qb5 f4 Qa4 Rf5 Bg2 h3 Rg7 h2 Qe8 h1Q Rd7 Qg1 Rc4 Rb8 a8Q Ba7 Bb6 Rb7 Ba5 Rf3 Bf1 Nc5 Qb8 Bc3 Bb6 B1b2 Qa8 Bb4 Rc1 Bd4 Ba5 b2 Qb8 Nc3+ Kd2 Nd5+ Ke2 Ne3 Nb1 Ba3 Nd2 Nc2 Qa8 Kf6 e5+ Kg5 Bb6 Kg4 Ba5 Qf6 e6 Be5 e7 Qe6 d4 Kh4 Bg2 Rf1 Bd5 Kh3 Bc4 Kh2 Qb8 Rb4 Bb6 Ncb7 Qa8 f3+ Kd3 f2+ Ke4 Rb5 Ba5 Rg5 Bb6 Rg7 Ba5 Qf7 Ne6 Qg8 Ng5 Qe6 Bc7 Rd5 Rd6 Bd7 Qc8 Bb5 Be2 Bc4 Rd7 Ba2 Bd3 Rd1 Bc4 f1N Qg8 Rb5 e8R Ra5 Ree7 Rb5 Nb3 Rd2 Qf7 Rf2 Nd2 Rf5 Qg6 Rb3 Qf7 Rbf3 Qe8 R3f4#
bb4NN/1qn5/rrB2qq1/N1QnpPr1/3b4/6BQ/4R1K1/rkNbRn2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Ke6 g4 Kd5 a4 b5 g5 h5 c3 e5 a5 b3 g6 d3 a6 Kc4 a7 d5 g7 d4 Ra3 e3+ Kf3 h3 Kg3 e2 Ra4+ b4 Qe1 d2 Na3+ Kd3 c4 d1B c5 h4+ Kh2 b2 c6 b1R c7 b3 Ra6 b2 Rd6 Nf6 g8Q Na6 Bd2 Rh5 Re6 Rg5 Qf2 Nd5 Rh6 Qf6 Nc4 Kc2 Qh8 e1B Nd6 d3 Nf7 Bb7 c8N Nac7 Rh5 Bd6 Bg2 Bc6 Bc3+ d2 Qc5 Bf2 Ne7 Bd4 Ne2 Ra1 f5 b1R Qh6 Rb6 Re1 Kb1 Nc1 Raa6 Kh1 h2 Ng8 Bb7 Nh8 Ra1 Bh3 Raa6 Bg4 Ra1 Kg2 h1N Qh7 Ng3 Be2 Raa6 Bb5 Qg6 Bc6 Nf1+ Kh1 h3 Qh6 Rb8 a8N h2 Rh3 Ra1 Rhe3 Rba6 Nb6 Ba8 Nc4 Rbb6 Qh3 Qf6 Na5 Qg6 Qg3 Qf6 Kg2 h1Q+ Kf2 Qh7 Kg2 Qhg6 Re4 Ba4 R1e2 d1Q Be1 Qb3 Qg4 Qb2 Bg3 Bd1 Qh3 Qb5 Bb7 Qd7 Bc6 Qc8 Re1 Qb7 R1e2 Ne6 Re1 Bb8 R4e2 Nec7
N1N4b/N1rnbr2/4q1pN/Q1QRqb2/5q1K/8/1bnRqnP1/r1kBB3 w - - 0 1 illegal: No possible last move
rnb1N2B/3r1QnB/5bpB/2R3n1/1rb1qk1b/qRNB4/5P1K/1r1q1Q2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 c4 Kf6 h4 Ke5 h5 b5 c5 d5 c6 b3 h6 g3 c7 g2 a5 e3 h7 g6 a6 d3 a7 d4 Ra5 b2 Qg4 d2+ Ke2 d1B+ Ke1 e2 Qh3 d3 Ra3 b4 Nc3 b1R Qh4 b3 Nb5 b2 Qg4 Qd6 Nc3 Nh6 Bd2 Bb3+ Nd1 Nf5 Qc4 Ng7 Qf7 Bc4 Nh3 g1N Rb3 Qa3 Nf4 Nh3 Nd5 Ng5 Nf6 e6 Rh3 Be7 Rh5 Rd8 h8B Rd7 Ne8 Ke4 Bf4 e5 Bc1 Bf6 Nc3+ Kf3 Qe7 e4 Qf7 N5e6 Rc5 Ng5 Kd2 Kg4 Ke3 e1B Bd2 Bd8 Bc1 d2 Bd3 d1Q Bd2 Kh4 Kf4 e3 Bc1 Kh5 Kg3 e2 Kh2 Kg4 Bf4 Bd2 Be3 e1Q Bf4 B8a6 c8B Qe4 Bb7 Bf6 Bd5 Bc8 Be3 Nh3 Bh6 Ng5 Be6+ Kf4 Bd5 Ra1 Be6 b1R Bd5 Na6 Be6 Rb8 a8Q Rb4 Qc6 Nb8 Qa8 Qee1 Qh1 Qe4 Qf1 Be3 Qf8 Bd4 Bf7 Be7 Bg8+ Bdf6 Qf7 Qac1 Qh1 Ra8 Qf1 Qa3 Bh7 Bd6 Rd5 Kf3+ Kh1 Bg3 Rc5 Bh4 Kh2 Kf4
2Q1K1N1/1n1r1p1R/Q1b5/1qN3br/b2Pnq1b/q2BkN1n/1B2qN2/3r2R1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 g4 c5 e4 b5 a4 h3 d4 h2 a5 h4 a6 h3 a7 c3 Qa4 b3 Ra3 b2 Qa5 c2 Bd2 c1Q Qb4 c4 Nc3 b1Q Ra1 Qe8+ Qe7+ Nf6 Kd6 b4 e5 b3 e6 b2 Na4 c3 Bb5 c2 Bf1 Na6 Bb5 Rh5 Ne2 Nc5 Be1 f3 Rf1 h1N Bb4 h2 Rg1 f2 Bc3 f1Q Bd3 Nb7+ Kc7 Bd7 Nc5 Qh3 Qd8 Be7 Qc8 Nf2 Ra5 Rb8 a8Q h1B Qa6 N6e4 Ra2 Bf6 e7 Ba4 Ra3 Qb5 e8N Qa2 Nd6 b1R Bb2 Qf4 Rc3 c1B Rb3 Kg6 g5 Qhf3 Ra3 Nh3 Rc3 Qa3 Rb3 Kh7 g6+ Kh6 g7 Bh4 Rc3 Bg2 g8N+ Kg5 Rc2 Bd2 Rcc1 Q3e3 Rh1 Ra1 Ng1 Qe2 Re1 Rd1 Nf3+ Kg6 Rh2 Ra8 Rg1 Ra7 Ne1 Kg5 Rhh1 Qf6 Nf3+ Kf4 Rh2 Ke3 Rhh1 Ng3 Nde4 Qf5 Nf2 Ne4 Qc6 Qf4+ Kd7 Na5+ Ke8 Rd7 Q6a6 Nb7 Kf8 Ba5 Ke8 Bad8 Rh2 Bh1 Rhg2 Bde7 Rg7 Beg5 Rh7 Nd2 Ne1 Bc6 Nf3 Ne4
b2RB1k1/Rq1Prn1p/4b3/4R3/K3n2q/2b1rN1Q/3QR1qN/B1nr1qn1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 b5 g4 f5 a4 Kf7 d4 c5 Kd2 h3 Kc2 f3 e5 h2 g5 c3 Kb3 f4 a5 c4+ Ka2 f2 d5 f3 a6 c2 a7 c3 Kb3 Nh6 g6+ Kg8 g7 Qh4 e6 Na6 e7 Be6 e8Q Nf7 Bb2 c1N+ Kc2 Nc5 d6 Ne2 d7 Ne4 Qd4 b3+ Kd1 b4 Ra2 Rb8 Ba1 b2 a8R b3 Qe7 Re8 Qa3 Bb4 Ra7 Re7 Nd2 b1B Bh3 b2 Nf1 Bd3 Bg4 b1R+ Qc1 Bb5 Kc2 Bc6 Qcd2 Rd1 Bh5 Ba8 Qd6 Ba5 Qg3 Bb4 Qh3 Ba5 Ne3 f1Q Ng4 f2 Nf3 Qg2 Re1 h1Q Ngh2 Ng1 Re2 Bb4 R2a5 f1Q Rd5 Ba5 Kb3 c2 Ka4 c1N Re5 Bc3 Bg6 Qgf2 Bh5 Qhg2 Bg6 Qb6 Bh5 Qb7 Bg6 Nd8 Be8 Nf7 Qc2 Ba2 Ra6 Nd2+ R5e4 Re5 Ra7 Re6 Rb4 Re3 Re4 Bc4 Re5 Ne4 Qd2 Nd8 Bg6 Be6 Bf5 Kf7 Bg4 Re8 g8R Re7 Bh5+ Kf6 Rf8+ Kg7 Bf7 Nc6 Rb8 Nd8 Be8 Nf7 Rd8 Kg8
QQnr1n2/2pQN3/2P1BQ1r/Kr5N/b1qq4/k4B1R/3n1nbr/b2R1q2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 d4 Kd7 Kd2 Kd6 a4 e5 h4 b5 c4 g5 f4 b3 Kc3 e3 Kb4 e4 a5 b2 a6 g2 a7 e2 f5 e1Q+ Nd2 b1R+ Ka5 b4 d5 Kc5 d6 e3 h5 e2 h6 b3 f6 b2 h7 g3 d7 g4 f7 Ne7 Nh3 g1N Ka4 g2 Qc2 g3 Qd1 Bb7 Qc2 Nc8 Qd1 Qh4 d8Q Bg7 Qd3 Nf3 Qd8 g1N Ra2 g2 Ra3 Nd7 Qf6 Nf8 Nf4 Nh3 Ka5 g1Q Ng6 Qgd4 Ne7 Nf2 Bh3 Qf1 Be6 e1R Qa4 Re2 Qd7 Rb8 a8B Bc6 Rh3 Ba4 Ra1 Rd1 Rc1 b1B Bc6 Be4 Bb7 Qg1 Nf1 Nd2 Ng3 Qf1 Nh5 Bg2 Ra1 Rb1 Bf3 R1b4 Rd1 R4b5+ Ka6 Kb4 c5 Ka3 c6 Rg8 h8Q Qc4 Qg6 Ba1 Qgf6 Rg6 Qg8 Rh6 Qgh8 Nh7 f8Q Qhd4 Qfd8 Na7 Q8c8 Nf8 Qb7 Rd8 Qa8 Nc8 Qg8 Re4 Qgh8 Rh4 Qg8 Rb1+ Ka5 Rb3 Qgg5 Rb4 Qb5 Rb2 Qbb8 Rb4 Rg3 Rh2 Rh3 Rb5+
2N1B3/1br1n3/K2Pb2k/N1R1nrpb/r2QbB2/3n2b1/B1bQq3/rB5R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 f5 Ke2 Kf7 a4 Kg6 h4 b5 d4 c5 h5+ Kh6 e5 g5 e6 c3 Kd3 c2 a5 f3 d5 b3 a6 b2 e7 f4 e8B g3 a7 f2 Qd2 g2 Kc3 c4 Ra4 f3 Qe3 b4+ Kd4 c3 Kc4 b3 Kb5 Ne7 Ne2 g1R Ng3 Nbc6 Rhh4 Be6 Bd3 f1B Rhb4 f2 Ne2 Ne5 Nf4 Be2 Na3 b1B Nc4 f1B Ra1 b2 Ng6 Bg2 Na5 Rh1 Bd2 c1R Ka6 Bc2 Rc4 b1B Rc5 Rcf1 Bc1 Rf5 Qd2 Rh7 d6 Bg7 Bc4 Rh4 Bd3 Ra4 Bc4 Bed1 Bd5 Bce4 Ba2 Bbc2 Bb1 Qb8 Ba2 Qb2 Rb1 Rc8 a8B Rc7 Ra1 Bh8 B8d5 Rhf7 Bb1 Rf1 Bda2 R7f5 Nf4 Bf6 Nd5 Rg1 Nb6 Bb7+ Ka7 Bge4 Nc8 Rh1 Bc6 Qb5 Be8 Qe2 Kb6 Ng4 Ka7 Be5 Kb6 Bg3 Ka7 Kh7 h6 Ne5 Kb6 Kg8 h7+ Kg7 Qd3 Kh6 Bf4 Bcb3 Qd2 c2 Ka7 c1N Kb6 Ncd3 Ka7 Bg8 h8Q+ Bh7 Kb6 Be6 Qf6+ Bg6 Ka7 Bc2 Kb6 Nf3 Qd4 Bh5 Kb5 Rc1 Kb6 Nfe5 Kb5 Bbd5 Ka6 Bb7+ Ka7 Bd1 Bc2 Bbd5+ Ka6 Bc6 Rb1 Ba8 Rb8 Ra1 Rb1 Bac6 Rc1 Bcd5 Bcb1 Bc2 Rh1 Bb7+
3bK1nQ/n1Q4b/r2p3B/3Bq1NQ/RbbP1N2/1r2rbb1/5knn/R1Q5 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 Kh5 Ke4 g4 b5 a4 f5 d4 c5 a5 c4 g5 f3 g6 c2 a6 b4 g7 f2 e3 c3 a7 b3 Qe2 b2 Ra3 h3 Bd2 c1B Qc4 h2 Qa4 f4 Ra2 c2 Qb5 f3 Qe2 Nc6 Ra4 Qa5+ Qb5 Bb4 Kg5 h5 Kg6 h4 Kf7 h3 Ra2 d6 Be1 Be6+ Kg6 Bc4 Qg5 Qe5 Bg2 f1N Ne2 Kd3 e4 f2 Qf4 Ne3 Ra4 f1N Nbc3 b1R Bd2 Rb3 Rg1 Re8 a8Q h1B Qa5 h2 Qc7 Na7 Bf3 Re6+ Kf7 Ng2 Qg5 Rh7 Qh5 Rh8 Bh6 Bg5 Nf4+ Ke3 Kf8 Be7+ Ke8 c1B Qg5 Kf2 Qh5 Qg5 e5 Be3 Bd5 Bd8+ Kf7 Re8 e6 Qe5 e7 Bd2 Qd1 Be1 Qc1 Rh7 Bg5 Rh3 Bh6 Re3 Ne4+ Kf3 Qb6 Bg3 Ng5+ Kf2 Qc7 Rf8+ Kg6 Rf7 e8Q Rd7 Qb6 Rb7 Qc7 Rb6 Kf7 Ra6 Kf8 Nh4 Qef7 Bf3 Qh5 h1B Kf7 Nh2 Kf8 Ne7 g8Q Ng2 Ke8 Be4 Qh8 Bf5 Qc3 Bh7 Rga1 Ng8+ Kf8 Ne1 Qc1 Bf3 Kf7 Ng2 Kf8 Ne7 Ke8 Ng8+
2kr3B/n1P2RQ1/r1b2RK1/4r1N1/r1nRn2b/1pq1rN2/3bn2Q/1r3B1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 f5 c4 b5 a4 g5 h5 f3 Kg3 f2 e5 b3 h6 b4 a5 f4+ Kh2 g3+ Kh3 g2 Kg4 f3 Kf5 g4 a6 d3 c5 g3 a7 d2 h7 d4 Ra5 b2 Bb5+ Nc6 Bc4 f1R Bd3 b3 Ne2 g1N Rh2 g2 Kg6 f2 Nf4 Nf6 Ra4 Qc7 Bc2 d3 Ne2 Bh6 Rhh4 Rd8 h8Q Re1 Nbc3 b1R Ne4 f1R Nd4 Rf4 Nf3 Ne2 Bb2 g1B Neg5 Bb7 e6+ Kc8 e7 Bf2 e8R Ne4 Rh1 Bh4 Rf8 Re8 Qc1 d1R Rd4 d2 Rf6 Qa5 Qg8 Qc3 Qg7 Re6 Bd3 Re5 Rf7 Rf6+ Kh7 Rd6 Qc2 Rd8 Ba6 Rdc1 Bc4 d1N Kg6 Ne3 Bb5 Nc4 Rf6 Ng1 Qh2 Re3 Ba1 Ne2 Rf7 Rb8 a8R Na7 c6 Rg1 c7 Rg4 Bb2 Rd6+ Rf6 Ra6 Ba1 Bc6 Rf7 Kb7 Rf6 Rh8 Raf8 Rf4 R8f7 Kc8 Bb2 Rd8 Qg8 Bf8 Qg7 Ba3 Ba1 Bc1 Bb2 Bd2 Ba1 Ncd6 Bd3 Nc4 Bb2 Nc1 Bf1 Ne2 Rdd7 Rd5 Ba3 Nf2 Bf8 Rde5 Qh6 Nd6 Bg7 Rd4 Bh8 Rda4 Qg7 Nc4 Rd4 Ne4
1Rnb1r2/7q/b2qBb1N/2rq1Q2/2RR4/1NQ2qqp/3nPk1B/Rq4bK w - - 0 1 illegal: No possible last move, all moves rejected
2R2Q1r/1nN2NRb/5b1q/1b2BQ2/p3b1bK/2rN1NB1/P1nnk3/1n1r2r1 w - - 0 1 illegal: No possible last move
B2knr1q/2r4Q/rq3RN1/2b2KpB/Q2r3N/N1rb1qP1/4R2N/3nr1q1 w - - 0 1 illegal: No possible last move
4NB1q/K2QR1n1/1r1RB3/Q1rpq3/rR4q1/rbr1rR1P/1b5k/4n1qN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Ke6 e4 Ke5 a4 b5 a5 f5 h3 g5 c5 g3+ Ke2 b3 Kd3 f3 a6 b4 Kc4 g4 Kb5 d3 c6 b2 c7 f4 Kb6 f2 a7 g2 Ne2 g1R Ra4 f3 Nec3 g3 Ne2 d2 Rh2 b3 Ra1 g2 Qe1 d1Q Nd2 b1Q Ra6 b2 Ra4 Nc6 Ra3 Rh5 Ra6 Nb4 Ra4 Nd3 Nf4 Nf6 Rb4 Qa1 Qe2 b1R Rb3 Ba3 Rb4 Ne1 Qa6 Ne8 Ne6 Ng7 Bc4 Qh8 Nf1 Bb2 Ng3 f1R Nh1 f2 Bh6 Qg4 Qa2 Bb7 c8Q Bd5 Nc7 Rc1 Qa5 Rc3 Ne8 d6 Bb5 Bb3 Bd7+ d5 Bf5 Rh4 Qd7 Rac8 a8R R8c5 Be6 Re3 Ng3 Rh1 Ka7 g1Q Rd8 Rec3 Bc1 Re3 Bd2 Kf4 Rg2 Rh2 Nh1 Rh6 Rg3 Rc3 Bf5 Rb6 Be6 Rc5 Bc3 Rg2 Bf6 Rec3 Re3 Rg3 Be7 Rf3 Rd3 Re3 e5+ Kf3 Bf8 Kg2 Rc8 Kh2 Rc6 Nf3 Rd6 Rb1 Bg8 f1R e6 Ne1 e7 Rff3 Be6 Rf4 Rdd4 Rff3 Rf4 Rg3 Rf3 Rd1 Nc7 Rd4 e8R Rde4 Re7 Rf4 Rb5 Ra4 Ne8 Qb1 Qb7 Qbe4 Rb4 Qe5 Qc7 Bc4 Qd7 Rca3 Nf6 Bb3 Ne8 Rec3 Rff4 Rgd3 Rf3 Re3
2QBn1b1/rQ1n4/bRKNN2b/PB1nrR2/r1rp4/1B1bB3/6k1/n2b2q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 h6 b3 c5 d3 h7 b4 c6 d2 c7 g3+ Kf3 b2 Ba6 g4+ Ke2 d4 Kd3 f3 Kc4 Kf4 Kb5 f2 e5 f1B+ Kb6 g2 e6 Kg3 e7 b3 e8B f4 Rh5 f3 Nh3 g1R Qe2 d1B Bd7 f2 Qe4 Ra7 Qe6 Bd3 Rh4 f1B Nd2 b1N Bc6 b2 Qf6 Bh6 Be8 Na3 Ba4 b1N Qf8 Be6 Bc8 Kg2 Rh5 g3 Bb5 Nc3 Kc5 Nf6 Qe7 Ne8 Rb1 Bg8 Ng5 Nc2 Nc4 Nd5 Ne6 Nd7+ Kc6 Na1 Nd6 Rh1 Re5 Rh5 Rf5 Bfe2 Qg7 Qg5 Be3 Qg4 Bb7 Rg5 c8Q Bf1 Rf7 Re5 Rf5 Qg5 Ba4 Ba6 Rb6 Bfe2 Bb5 Bd3 Bd2 Qe3 Ba8 Qg1 Be3 Bf7 Bb7 Rf8 h8B Bg8 Rh5 Rf2 Rf5 Ra2 Qf7 Ra4 Bf6 Kh2 Bd8 g2 Qe7 Qf2 Bd2 g1R Be3 Kg2 Qh7 Re1 Ba8 Qg1 Qf7 Nc5 Qfb7 Nd7 Qbc7 Re2 Q7b8 N7f6 Kc5 Rf2 Bac6 Rc2+ Bc4 Nh5 Qbb7 Nhf6 Bb5 Nd7+ Kc6 Nc5 Ba2 Rcc4 Bb3 Nd7+
2n2k2/1bb3N1/BQnNrp1K/2R1qr1N/1rN3Q1/2R1n2n/1B3rPq/4r1r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 b5 e4 h5 a4 d3 c4 f6 e5 h3 a5 d4 c5 h2 e6 h4 Kg4 d2 c6 d3 c7 b3 a6 h3 a7 f3 Ra3 b4 Kf5 b2 Kg6 b3 e7 f2 Qf3 d1R Ra2 d2 Qh5 Qd5 Qe2 Nc6 Ra4 Qe5 Ra1 Bb7 c8N Re1 Ra3 d1N Qh5 Ne3 Qh4 Rh5 Ra4 Rf5 Bc4 f1R Ra5 R1f2 Nd2 b1R Ne2 b2 Ba6 Bh6 Qa4 Bf4 Nc4 Rb8 Rf1 h1Q a8Q h2 Ng3 Ra1 Nh5 b1R Kg7 Rb4 Bb2 Qg1 Qa7 h1N Rd5 Qh2 Rc5 Rad1 Kh7 Kf7 e8N Nge7 Rg1 Kf8 Nc8d6 Nc8 Qb6 Bg3 Kh6 Ra8 Nf7 Rd6 Ng7 Re6 Qd1 Ra7 Qg4 Ra8 Bb5 Raa1 Rf1 R2f4 Rg1 Nf2 Ba6 Nh3 Nfd6 Rf2 Rf1 Ree2 Rb1 Re1 Rc1 Rg1 Rc2 Rae1 Rc3 Qd5 Nde8 Bc7 Ned6 Qde5
1rQbn1Nq/B2r1RP1/qR2Bnkb/2b1q2b/b6Q/4p2B/3b1N2/K2B1q2 w - - 0 1 illegal: No proof kernel
nb2b2b/rBr2np1/R1P2Nb1/5bN1/1rr1bk2/2QR1q2/1R1R1Q2/BK5q w - - 0 1 illegal: Other
B1q1q1r1/1nP5/2n2pq1/1k3BN1/2R2Q2/RrQ2qrb/KB3rBN/1qb4q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 e4 d5 g4 Kd7 a4 Kc6 c4 h5 Kc2 h3 Kb3 h2 a5 f6 g5 h4 a6 d3 c5 d4 g6 f3 a7 d2 g7 h3 e5 d3 e6 f2 e7 Na6 Qe2 d1R Ra4 d2 Nf3 Qe8 Qd3 Rb8 Bg2 f1R Ka2 b3+ Ka1 b2+ Ka2 b4 Qa3 Rf2 a8Q+ Kb5 c6 Nc5 c7 Rg1 Qc3 d1Q Ra6 b3+ Ka3 Qdd8 Qa7 Nb7 Nbd2 b1Q Bb2 Qbg6 Nf1 Be6 Qad4 Qc8 Ng5 Bg4 Bc1 b2 Qf4 b1Q Bb2 Bd7 Kb3 Bf5 Ra3 Bg4 Bf3 Rg3 Bg2 Bf5 Rg1 h1Q Nh2 Bd7 Rc1 Qd1+ Rc2 Qf3 Nf1 h2 Rc1 h1Q Nh2 Qed8 e8B Ne7 g8B Nc6 Bd5 Bh3 Bd7 Rg8 Bf5 Qde8 Bde4 Bc5 Bd5 Be3 Rc2 Qbg1 Ka2 Qgd1 Qe1 Qd3 Rc4 Bc1 Qc3 Qb1+ Kb3 Nd6 Ne4 Nd8 Rc5+ Kb6 Ba8 Nc6 Ng5 Rb7 Ra4 Rb8 Rac4 Ka6+ Ka3 Rb4 Ra5+ Kb6 Ra4 Nb7 Ra6+ Kb5 Ra4 Qbe4 Ka2 Rb3 Ra3 Qb1+
qr1RB2r/1PR1K2p/3Q4/N4N1n/b4Bn1/3n2n1/kBrnq1Bb/3nr1Q1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 f4 Ke6 g4 Kd5 b4 Kc4 f5 e5 b5 d5 c3 a5 g5 a3 b6 h3 b7 a4 g6 h2 f6 d3+ Ke3 a2 f7 d4+ Kd2 a3 g7 e3+ Ke1 e2 Kf2 e1R Kg3 e4 Kf4 e3 Ke5 e2 Nf3 d2 Ng1 d3 Bg2 Nf6 g8Q Bd7 Qg5 Ba4 Ke6 Bd6 f8B Nh5 Bg7 Nd7 Nf3 Rb8 Nd4 Ne5 Nf5 Ng4 Bb2 Qa5 Be5 Qa8 Bf4 Bc7 Rf1 h1N Ke7 N1g3 Qf6 Be5 Qc1 Kb3 c4 d1Q c5 d2 c6 Qc2 c7 d1N c8B Qc4 Qd6 Qe4 Nc3 Qc2 Rb1 a1R Nb5 a2 Na3 Qd3 Qcc5 Qd2 Rc1 Rb1 Bg5 a1N Bd7 Ka2 Be8 Nb3 Bf4 Ra1 Rc4 Rc1 Qg1 Rc2 Rc7 Qe3 Rf3 Nd2 Nc4 Ngf1 Bh6 Bh2+ Qe6 Nfg3 Bf4 Rf1 Qe5 e1N Na5 Qf2 Rd3 Qe2 Rd6 Nd3 Rd8 Nge3 Qd4 Re1 Qd6 Ng4+
R2rbN1q/2Bq1k2/2nr3Q/q1brQ3/1R5b/rBKPN3/p3Q1qb/2Q1n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 e4 h5 g4 f5 b4 a5 e5 c5 e6 a3 e7 a2 b5 h3 g5 c3 g6 f3 g7 c4 b6 f2+ Ke2 h2 d3 c2 Kd2 f4 b7 a4 Qe1 c3+ Ke2 a3 Qd2 f3+ Ke3 h4 Nh3 Na6 b8Q Kf7 Be2 f1R Qd6 f2 Kd4 Bd7 Qb6 Be8+ Qd6 Nb4 Bg4 Qd7 Ng1 h3 Bb2 c1B Qg5 c2 Qa5 Bg5 Qa7 c1B Qc7 Nc2+ Kc3 Bcf4 Qe5 Ne1 Nd2 Bh4 Bd1 Ra6 Rb1 a1R Nc4 Rd6 Ne2 Bfg3 Rg1 h1Q Bb3 h2 Nf4 Qa8 Ng6 h1Q Ne3+ Qad5 Qc5 Bh2 Rg4 Rg1 Ra4 f1Q Ra8 Rg5 Qc4 Rf5 Qcf4 Qfg2 Qh6 a2 Ba3 Rg5 Rb2 Rb1 Bc5 Rh5 Bb6 Rg5 Bc7 Rc1+ Bc2 Qa5+ Rb4 Rf5 Qg3 Rb1 Bb3+ Rfd5 Qg4 Nf6 Qd1 Ng4 Qe2 Ne5 g8Q+ Kf6 Qc2 Nc6 Qgg7+ Ke6 Qe5+ Kf7 Qe2 Rc1+ Kb2 Rc3 Qd2 Bg7 Nf8 Bgf6 Qc2 Bf2 Qc1 B6h4 Ba4 Ra3 Bb3 Bfg1+ Kc3 Rg8 Nf5 Bc5 Ne3 Rh8 Qe4 Bg1 Qg4 Bg3 Ne6 Qh4 Qb1 B1h2 Qe2 Qf6+ Kd2 Bh4 Qb2 Rf8 Qc1 Qh8 Bd1 Qd8 Ba4 Bd7 e8Q+ Kg8 Bb3 Qe7 Qeh5 Rd8 Nf8 Be8 Qe5 Qd7 Kc3 Kf7
3b2nr/N2B1qQ1/k1Bq1Bbn/1R1rq3/1r1n4/1PQ3NR/B1rp2nK/6q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 a5 c4 f5 g4 h5 Kg2 d5 e4 Kd7 c5 Kc6 b3 Kb7 e5 d3 e6 f3+ Kh2 f2 g5 a3 e7 d4 e8Q a2 c6+ Ka6 g6 a4 c7 h3 g7 h4 Qee1 f4 Nf3 a3 Nbd2 Qd6 Ne4 Nc6 Qdd2 Bf5 Be2 f1N+ Kg1 h2+ Kg2 h3+ Kf2 Ne3 Nh4 f3 Bb2 Rc8 Bc3 Bg6 Qdc1 Ng2 Ng3 Be7 Qcd1 Bd8 Rf1 h1R Nhf5 h2 Ne7 Rg1 Rc1 a1Q Qc2 h1Q Qb2 Ne5 Nc6 a2 Na7 Nf7 Rc2 Rb8 c8B+ Rb7 Rc1 Nfh6 Bd7 Rb4 Bd1 d2 Bc2 d1R Bb1 d3 Bf6 Qh5 Rc5 Qhe5 Qec3 d2 Re1 Rc1 Rb5 Rc2 Re3 Rh1 Bc6 Rh5 Kg1 Rg5 Bd7 f2+ Kh2 f1Q Bc6 Qc4 Rd3 Qf7 Rf3 Ne7 g8B Rf5 Bh7 Neg8 Bd7 Rc1 Be4 Rc2 Bec6 Qd1 Re3 a1N Rd3 Rc1 Re3 Nc2 Rf3 Nd4 Rd3 Rg5 Rf3 Bh5 Bb1 Rc2 Ba2 Bg6 Qe3 Ne2 Be7 Qec5 Qg7 Bh5 Bf6 Nd4 Qc3 Bg6 Re3 Re5 Nh5 Qcd5 Rh3 Qe4 Be6 Rd5+ Ng3 Qee5 Bed7 Qg1+
3Rr1n1/1q2B1N1/1Nkn1q1q/4Q1RK/n3q3/1p2P2B/r3NN1Q/bb2nrr1 w - - 0 1 illegal: No possible last move, all moves rejected
3nbb1Q/1Q6/1q1n1Kn1/3b4/R1Pr1bp1/1q1BkrrB/1n2N1B1/B2r1RN1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 a5 g5 h5 b5 a6 b3 h6 b2 h7 f3 Kg3 f2 a7 b4 Nd2 b1N Rh4 d3 Rh5 Kd4 e5 b3 e6 f4+ Kg2 b2 e7 f3+ Kg3 Na3 e8B b1Q Nh3 Ne7 Bg2 f1B Bb5 f2 Rh6 Qb6 Rg6 Bd7 Qa4 Qb3 Nf4 Rg8 h8Q+ Ke3 Rc6 d4 Qh7 Ng6 Ne6 Be8 Bf3 Bg2 Qb4 f1R Be2 Bd5 Rc5 Nc6 Nf3+ d2 Bd3 Rd8 Bb2 d1N a8B Rf2 Bc3 Nb2 Rf1 Rd7 Qg7 Nd8 Ng1 Rd6 Ba6 Nb5 Qh8 Rf6 Bc8 Rf3+ Kh2 g3+ Kh3 g2+ Kg4 Rd7 Nf4 Nd6 Nfe2 Rgg7 Ra5 Rg8 Bc2 d3 Ra4 d2 Bd3 d1R Bg7 Qa6 Qb7 Qab6 Nh3 g1B Kh5 Bf2 Nhg1 Bg3 Bf6 Re7 Bh3 Re4 Bg7 Rd4 Be5 g4 Kg5 Bf4+ Kf6 Rg3 Qe7 Bdf7 Bag2 Bd5 Qb7 Rg7 Qb8 Ra7 Qb7 Ra6 Rb4 Raa1 Ra4 Ra3 Qc6 Re4 Bb1 Q3b5 Nd4 Nd3 Qb7 Ra2 Ra6 Qb3 Ra4 Rf2 Nde2 Rff3 Ba1 Nb2 Bd3 Rd4
knRb1r1q/r2BNBn1/1b1q1B1N/Qn4K1/Q1pR1qP1/4Bq2/2bbn3/8 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 b5 d4 Kb7 g4 c5 a4 h5 a5 e5+ Ke3 b3 f4 b2 f5 b4 f6 h3 f7 h2 d5 h4 d6 b3 d7 c3 Bd3 c2 Ne2 c4 Ng3 h3 Qe2 Nh6 Nf1 Bc5+ Kd2 e3+ Ke1 e4 f8Q Bb6 Nc3 b1Q Qd1 e2 Kd2 e1B+ Ke2 e3 Kf3 b2 Kf4 e2 Qe7 Nf5 Qg5 Ra7 a6+ Ka8 Ng3 Ng7 Bf5 Rf8 Be3 c1N Nd5 Bea5 Ne7 e1B Qa4 Bed2 Rd1 h1Q Qh5 h2 Kg5 Qc7 d8B Qbe4 Bd7 b1N Ngf5 Nc3 Nh6 Qhf3 Rb1 h1Q Rb3 Rb7 a7 Qd6 Rb5 Qhh2 Rc5 Nb5 Rc6 Ne2 Rc5 Be1 Rd4 Bed2 Rc6 Qh7 Rc7 Qh8 Rc5 Rc7 Rc6 Kb7 a8B+ Ka7 Rc5 Qhg3 Bd5 Qgf4+ Kh4 Bb7 Bf7 Be4 Qd5 Rb7 Rc8 Bc2 Qc5 Ka8 Qcb4 Qh2+ Kg5 Ra7 Qba3 Bc7 Qc3 Bab6 Qca5 Qhf2 Neg8 Qf1 Bf6 Bd8 Ne7 Q1f2 Rd3 Qfh2 Rd4 Qhf4+
2n2q2/1q1R2r1/Rnk2P2/RR2n3/bb1r1BQ1/1q1Bq2r/Nnp4r/NKQ5 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kd7 Kd2 h5 Kc2 c5 a4 e5 g4 b5 f4 e3 d5 c3 a5 e2 d6 e1Q a6 c4 g5 h3 f5 h4 a7 h2 f6 h3 g6 e4 g7 e3 Bb2 e2 Qc1 Rh7 Ba3 Ne7 g8Q Kc6 d7 Rg7 Qd1 b3+ Kc1 b4 Nf3 c2 Rg1 h1R Rg5 h2 Kb2 c1N Nc3 Nd3+ Kb1 b2 Kc2 Ne5 Na2 c3 Kb3 b1Q+ Ka4 b3 Rf5 b2 Kb3 Qe4 Rg5 b1Q+ Bb2 Qe3 Qc2 Qed1 Qh7 e1N Qg6 N1d3 Ne1 Qe8 d8R Nbd7 Rh5 Nb6 Qg4 Bd7 Rg5 Qdf3 Qc1 Nec8 Nc2 Bb4 Be2 Rb8 a8R Qf8 Ra6 Rd1 Rf5 h1R Rh5 Be8 Rd7 Rh3 Bf1 Rd2 Ra5 Rdh2 Rg5 Nec4 Rgb5 Nde5 Bd3 Rb7 Qh1 Qd1 Bc1 Nb2 Bd2 Qb1 Qc1 Qd1 Rd8 Rbe7 Rd7 Re6 Ra6 Rd6 Raa5 Rd4 Ra6 Qee2 Bf4 Qe3 Rd8 Qh1 Rd6+ Kb7 Rc5 Ba5 Nab4 N2a4+ Ka3 Qd5 Ra2 Qc6 Na1 Kc7 Rcd5 Qb7 Rb2 Qc2 Ka2 Qd1 Kb1 Bb5 Ra2 Nb2 Ra3 Qb3 Na2 Bb4 Rd7+ Kc6 R3a5 Ba4 Rdb5 c2+
2N2nb1/K4QQ1/b4p2/1BBR3n/1B1q1n2/1qn1rPr1/1b1qNk2/B2q2Rb w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 g5 e5 g6 hxg6 d5 g5 Qd2 g4 Qd4 exd4 Kd2 Ke7 e4 Kf6 h4 Ke5 a4 Kf4 h5 c5 a5 b5 h6 g5 a6 b3 h7 b4 e5 b2 e6 d3 a7 g3 d6 c3+ Ke1+ d2+ Ke2 c4 e7 g4 e8Q b3 d7 g2 Qe7 c2 Ra3 g3 Ra1 c3 Kd3 Ba6+ Kd4 Bg7+ Kc5 Nf6 Qe6 Nh5 Qc6 Qg8 d8B Nd7+ Kd6 Nf8 Bb6 Re8 Kc7 Re3 Kb8 d1N Nd2 b1B a8Q b2 Ne4 Ba2 Ka7 b1B Nf3 g1N Bg2 Nh3 Bb2 c1Q Qg6 c2 Qd5 Qd2 Nd6 c1Q Nd4 Nc3 Ba3 Be4 Bf1 g2 Bb4 g1Q Ne2+ Kf3 Nc8 Qcd1 B6c5 N3f4 Qh6 Qg4 Rg1 Qd7+ Qb7 Q7d4 Qg6 Bb3 Ra5 Bf6 Qf5 Qg3 Qfd5 Rg8 h8B Qh3 Qf5 Rg3 Qg5 Be5 Bf6 Qe6 Qg7 Ba2 Qd7 Qeb3 Qe8 Bd6 Be5 f6 Qef7 Nh7 Bb6 Qdc4 Qd5 Nf8 Ba3 Nb1 Nc1 Qbc2 Ba1 Be5 Bb4 Bb2 Bd3 Bb3 Ne2 Qd4 Rc5 Ba2 Bb5 Nc3 Qdg8 Bf7 Rd5 Qb3 B6c5 Be6 Qc7 Bf7 Qg7 Bg8 Qcf7 Bf5 Qh7 Bh3 Qhg6 Bg2 Qgg7 Bh1 Qh8 Kg4 Qhg7+ Kh3 f3 Kh2 Re1 Kg2 Rg1+ Kf2
R2KBbB1/B1pB1n1Q/1b1P2r1/N3nb2/6qq/2r3R1/2nrr1n1/2kbN1Q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Kd5 a4 Kd4 g4 b5 e4 h5 g5 b3 g6 b4 e5 b2 e6 b3 e7 c3 e8Q h3 a5 h4 a6 h2 a7 h3 g7 c2 d3 Nf6 g8B Ne4 Bh7 Qg5 Nd2 Kc3 d4 b1B d5 b2 d6 Rg8 Qd7 Rg6 Bd3 Nc6 Bg8 Ne5+ Ke2 f3+ Kf1 f4 Ra4 f2 Ke2 f1R Ndf3 Qg4 Ba2 Ng5 Qd8 Bf5 Bb5 Re1+ Kf2 Re4 Be3 c1B Qf1 Kc2 Nd2 f3 Nb3 Rd4 Qd7 Re8 a8B Rd2+ Be2 Ree6 Ba7 Re7 Ke3 f2 Bc6 Re8 Qe1 f1N+ Kf2 Re7 Nf3 Ne3 Rg1 h1R Rg3 h2 Qg1 Ng2 Na5 Re8 Bc4 Ba2 Qf7 b1N Bd7 Bb3 Qh7 Na3 Ne1+ Kb1 Bf7 Bd1 Bg8 Nc2 Raa3 Bb2 Ra2 Kc1 Ra4 Rd4 Beb5 Re7 Bbc6 Ba3 Be8 Bc5 Bcd7 Ree6 Rb4 Re7 Rb8 Bb6 Ra8 Qe4 Rf3 Rd2+ Kg3 Qe2 Qf2 Rf1 Qg1 h1Q Re3 Rf4 Rf3 Rc4 Re3 Rc3 Rd3 Nh4 Kf4 Qh5 Rg3 Nc6 Rg2 Ree2 Rg3 Ne5 Bc6 Bc8 Bcd7 Ng2+ Kf5 Q1h4 Nc6 Rg7 Kf6 Q4g4 Na5 Qhh4 Ba4 Be6 Bad7 Bf5 Ba2 Rg8 Bb3 Bh6 Ke7 Rg6 Bg8 Bf8+ Kd8 Ngf7+
2n3qR/1Qq3N1/3q1rkN/2qn4/2n1N1b1/N1p1p1QK/P1B4B/b1qrb1R1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 d4 e5 f4 b5 Kf2 h5 Kg2 c5 f5 b3 d5 h3+ Kh2 b4 f6 e3 g5 b2 d6 h4 d7 e2 Qa4 e1B Qa7 b3 Bg2 e4 Qa4 c3 Be3 c2 Qd4 c1Q Nd2 b1N Nc4 b2 Bf3 Ne7 Qd2 Kg6 f7 Bg7 f8Q Na3 Bd1 b1Q Bb3 Qbc2 Qg8 Qc7+ Bf4 e3 d8N Bg4 Nd6 c4 N8b7 Ra6 Ne8 Rf6 Ne2 Nd5 Na5 Nc6 Qb4 Nce7 Qb7 Nc8 Bd6 Qd3 Ng3 Qd4 Bf4 Qdc5 Ne4 Qd1 Bc2 Qd2+ Kg1 h2+ Kf1 Qdb4 Kg2 Qbb6 Rg1 Qbd6 Rd1 Rh6 Rd2 Rh7 Rf2 h3+ Kg3 Kf5 g6 h1Q Be5+ Qf3+ Kh2 Bh8 g7 Kg6 Rfg2 Qf2 Rh1 Qh4 Rgg1 Qg5 Bf4 Bc3 Kg3 h2 Be5 Ba1 Bf4 c3 Nc4 Rh3+ Kg2 Rf3 Be5 Rf1 Bg3 Rd1 Bf4 Nb1 Na3 Nd2 Be5 Nc4 Bf4 Bh5+ Kh3 Bf3 Qf8 Be2 g8N Bh5 Nh6 Bg4+ Kg3 Bg7 Qh8 Bf8 Ng7 Be7 Qg8 Bd8 Rg2 Be7 Rhg1 h1Q Rh2 Qf5 Rh3 Qfe6 Kh4 Bd8 Bh2 Qe8 Qe6 Qg8 Qe5 Qg2 Qf4 Qd2 Kg3 Qc1 Kg2 Rf8 Qg3 Bg5 Rh4 Rf6 Rh5 Be2 Kh3 Bf3 Ng4 Bh4 Rh8 Be2 Qf3 Be1 Qg3 Bf3 Nh6+ Bg4+
3B1bR1/qQ2r1R1/RQn1b3/3Bnn1k/r1q2pNq/Pp2r3/n2R1Nn1/6K1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 e4 f5 c4 Kf7 g4 Kg6 a3 b5 e5 h5 e6 b3 c5 f3 c6 b4 c7 d3 g5 d4 e7 b2 e8R d2 Bb5 d3 Re4 b3 Nh3 f4 Ba6 Nd7 Bc4 Ne7 Rhe1 Ne5 Bb5 Ra4 Rb4 Qd7 Nc3 b1N Ne4 Nc3 Qc2 d1R Be3 d2 Ba7 Na2 Re3 N7c6 Rd4 Rh7 Bc4 Re1 Qc1 Re7 Rc3 Re3 Kg1 d1N Nhf2 h3 Bb6 h4 Rd2 Kh5 g6 Qd4 g7 Be6 c8Q h2+ Kh1 Qc5 Ng4 f2 Bd8 Qa7 g8R f1N Bd5 Ng3+ Kg2 Nf5 Nef2 h3+ Kf1 Rg3 Qb7 h1Q+ Ke2 Qf3+ Kf1 h2 Re3 Rh3 Qc5 Qe4 Qcb6 Qc4+ Ree2 Re3 Kg2 Ndc3 Rg1 h1Q+ Kf1 Qh4 Rg2 Ne4 Kg1 Neg3 Re1 Nf1 Rc1 Qe2 Rc5 Qc4 Ra5 Rh3 Ra6 N1e3 Nh6 Rf3 R2g7 Ng2 Nhg4 Re3
1n3Q2/1qNB2b1/4n3/n2r3B/1Qnp1npK/3PRr2/2rN1bq1/1b1RN1kN w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 Kf2 Ke7 a4 Ke6 e4 Ke5 h4 Kd4 c4 f5 e5 b5 e6 d5 a5 g5 e7 f3 Kg3 b3 e8Q f2 c5 b4 c6 f4+ Kg2 f3+ Kg3 Nh6 a6 Qe7 h5 Bg7 c7 Nf5+ Kh2 g3+ Kh3 g2 h6 Rg8 Nc3 b1R a7 b2 h7 b3 h8N Rc1 Bb5 f1Q Kg4 b1N Qh5 b2 Ra5 f2 Qf7 Rc2 Rh2 Na3 Ra6 b1N Ra4+ Nc4 Qf8 Na3 Nh3 g1B Ne4 Qg2+ Kh5 f1N d3 Ke3 Nd2 d4 Nf2 Na5 Nf7 N3c4 Qb1 Be6 c8B Qeb7 Nh1 Bf2 Bcd7 N1g3+ Kg4 Ke2 Rh3 Nh5+ Rg3 Nf4 Qbb4 Bd5 Ne5 Bf7 Nef3 Bd5 Nb3 Kf1 Ne1 Kg1 Nd2 Be6 Ra1 Bf7 Qc8 Rd8 Be8 Rd5 Rd1 Bh8 Qc3 Na3 Ba6 Re5 Bc4 Nbc6 Bd7 Ng7 Bb5 Ba2 Bf5 Rd5 Qb4 Bb1 Bg6 Nge6 Bh5 N3c4 Qg8 Rc8 a8N Nb8 Nc7 Bf6 Qg7 Rg8 Qgf8 Rg6 Ba4 Bg7 Bd7 Rh6 Bg6 Rh3 Bh5 Be5 Kf5 g4 Rf3 Rg3 Re3 Ng7+ Kg5 Nge6+ Kh4 Bh8 Qb6 Bg7 Qbb4 Rf3+
1n5k/3b4/Qq2Br2/b2K1qNB/1p2B1nP/1Q4Rr/pb1nq2N/B2nn1R1 w - - 0 1 illegal: No proof kernel
nN2q3/1Nb2nbB/2B5/1QK1R1Pq/Qp3n2/B2b3p/r1bB1k2/rrb3R1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 Kg4 c5 Kg3 a5 b5 f5 h5 c6 e5 c7 d5 a6 e3 Kd3 e2 f6 e1B f7 e4+ Ke2 e3 Kd3 h3 a7 h4 Ra6 e2 Qc2 h2 Qb3 h3 Rc6 Na6 Bg5 Kf2 g4 Bd2 Rc3 e1B Be2 Bc1 Bf3 Bf5+ Be4 Qe8 c8Q Nh6 Na3 Nc7 Qb7 Bg7 f8B Nf7 Qc4 b3 Bc5 b2 Bf4 b1R Rb3 Ba5 g5 Rh6 Bb4 Ra6 Nf3 Bh7 Rd1 h1N Ne5 Ng3 Nd7 Ne2 Bfd2 Bg6 Nb8 Nf4+ Kc2 Bh7 Rg1 Bg6 Rb2 d3+ Kb3 d4 Qcc6 Bb6 Nc4 Ra2 Ba3 b4 Nd6 Bh7 Kc4 Ba5 Bc3+ d2 Qbb5 d3 Nb7 Bb6 Rb3 d1Q Bd2 Qh5 Qa4 Ba5 Kc5 Bf5 Qcb5 Bg6 Bc3 d2 Bc2 d1B Bd2 Be2 Re3 Bed3 Re5 Bgf5 Bb3 Bfe4 Bd5 Bc2 Bc6 Bed3 Be4 Ncd5 Bg6 Bc7 Bh7 Nb6 Na6 Rd8 a8B Rd7 Nb8 Re7 Rf5 Re1 Re5 Rba1 Nd8 Rd1 Bc6 Na8 Nb7 Bb2 Rd5 Rdb1 Re5 Bc1
2k1Kbnr/2q5/2R1RbBq/R2b1p1P/b1p2n2/5qQN/3bnN2/B2rR2Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 c5 a4 b5 e4 f5 d4 g5 e5 g3+ Kf3 g2 h5 b3 d5 c3 d6 b4 a5 b2 a6 b3 a7 c2 Ra2 c4 Ra5 g4+ Kf2 g3+ Kf3 Qc7 Qe1 Na6 Nc3 b1B Bb2 c1B Nd1 Nc5 Nh3 g1B Ndf2 g2 Ba1 b2 e6+ Kd8 d7 Bd2 Be2 Bc2 Bd1 b1Q Qe3 Rb8 a8Q Ba4 Bc2 Bh2 Re1 Qc1 Be4 Bg3 Bd5 Rb1 Qc3 Nd3 Qc6 Ke7 d8R Bb7 Rd6 Bh4 Qb3 Ba8 Qcb7 Bf6 Rc6 Kd8 e7+ Kd7 e8R g1N+ Kg2 Rh6 Bf7 Rh8 Bg6 Ne2 Ree6 Kd8 Kh2 Kd7 Qc3 f3+ Qe5 Kd8 Qg3 Ndf4 Qg2 Nd4 Kg3 Kd7 Qb3 Kc8 Qh1 Bb7 Rca6 Bd5 Rac6 Qb2 Qe3 Qb6 Qe5 Rd1 Qd6 B6g7 Kh4 Nde2 Kg5 Qe3 Nd3 f2 Qa3 f1Q Ndf2 Bb2 Qc3 Ne7 Kf6 Qb6 Kf7 Ng8+ Ke8 Qa6 Qd3 Bf6 Qe3 Qg2 Qg3 Qf3 Re3 Qb6 Re6 Qbe3 Re4 Nd3 Re5 Qh6 Re6 Ndf4
2B3Q1/B5NN/K1n1Q1n1/R1pr3q/4Bpbb/1b3RbB/2P1bn1q/1rk3r1 w - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 g4 Kd7 d4 Kc6 Kd2 Kd5 Kd3 c5 a4 b5 g5 h5 a5 e5 a6 f5 g6 e4+ Kd2 f2 g7 f4 a7 h3 Ra6 b3 Kc3 b4+ Kd2 h4 Bb2 e3+ Kd3 h2 Na3 h3 Qe1 e2 Bc1 b2 Ra4 b1B Be3 b3 Nb5 b2 Nf3 Qe8 Nd6 Rh5 Nf5 Ba2 Bd2 b1R Ra5 Ne7 Ng5 Nbc6 Nh7 Bb3 g8B+ Qf7 Bc3 Ng6 Ng7 Bg4 Bd2 Re8 a8B Be7 Bb7 Bf6 Bc8 Bh4 Bg2+ Re4 Rf1 h1Q Bc3 h2 Bh3 Qg2 Bb4 h1N Bd2 Kd6 d5 Ke5 d6 Qh2 d7 Rd4+ Kc3 Ke4 d8Q Rdd5 Qf8 Qe8 Bf7 Bg3 Qg8 Rhg5 Bfe6 Kf3 Bf5 Qf7 Be3 Qe8 Bd4 Bh4 Bf6 Ke3 Bd8 Bg3 Be4 Bh4 Rg1 f1B Bb6 Nf2 Ba7 Bg3 Qf7 Qh8 Qg8 Bh4 Nf6 Qh5 Nh7 Ba4 Kc4 Bb3+ Kb5 Bg3 Qb4 e1B+ Qc4 Kd2 Ka6 Bfe2 Rf1 Kc1 Qe6 Nh1 Rf3 Bh4 Qe8 Beg3 Qg8 Nf2 Qe6 Rd1 Qg8 Rg1 Qe6 Rd5 Qg8 Rd3 Qce6 Rd5+
3QN1n1/k1B3bq/b2n1NPn/1r1p1NK1/1qqq2Nr/3R4/b1Bq1Rp1/Q7 w - - 0 1 illegal: No proof kernel
2q4r/5rN1/1bpB3R/1n1k2pN/2n1qq1B/Q3rn1b/1Q4P1/K1Rn1BnB w - - 0 1 illegal: Other
1Br1Nn1Q/1bq4n/qrp3P1/kq2bN2/3p1r2/4R2B/BQ2rn1B/2R1r1K1 w - - 0 1 illegal: No possible last move, all moves rejected
QK3Bb1/3q2Bn/1pRN1qR1/1b3rQr/1k4n1/p2B2bn/2P1qn2/1BnN4 w - - 0 1 illegal: No proof kernel
3n1bBn/k1r5/1p1B4/4B3/1r2pNQb/B2R3b/qQrP1q1K/q1bNR1b1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 a4 Kd7 f4 Kc6 Kf2 Kb6 Kg2 e5 h4 g5 h5 c5 h6 c3 h7 c2 f5 b3 f6 b2 f7 c4 a5+ Ka7 a6 c3 Be2 g3 Na3 b1R Bf3 b6 Rh2 e3 Rh3 e2 Be4 e1B Rh4 g4 Bf3 e4 Nh3 Qd5 Bb2 c1Q Rh6 c2 Be2 Ne7 Bc4 Ng6 Nf4 Nc6 Rh3 Nd8 Kg1 g2 Kh2 Rg8 h8B Bh4 Bhe5 Nh8 Rd3 Rg7 Bb3 Bd7 Nc4 Rc8 Ba3 Rc6 Ba2 Rb4 Ne3 Qb2 Qb1 c1B Nd1 Rc2 Bb3 Qa2 Qb2 Qc5 Be6 Qf2 Bc4 Bc5 f8B Bf5 Bg8 Rc7 Bfg7 Bf8 Bd6 Bg6 Bge5 g3+ Kh3 g1Q Rb1 Ka8 a7 g2 Ra1 Qgf1 Kh2 Bf5 Rb1 Bh3 Ra1 Kb7 Rb1 Ka6 a8Q+ Ra7 Qd5 Rac7 Qe6 Kb7 Qg4 Ka7 Rd4 Qa6 Rd3 Qa1 Qc8 Qc4 Qg4 Qca2 Ne3 Nhf7 Qd4 Bb2 Re1 Nh8 Nd1 Bc1 Qb2 g1B+
Bb2qn1n/2QB1R2/P2p2pr/RKnr3b/7b/N2b2Q1/k2qqb1B/2B1N3 w - - 0 1 illegal: No possible last move, all moves rejected
1K5q/RB1bN2p/QP3pq1/1nn2rN1/4Qbr1/q2Bnq1R/1B1B2k1/6bq w - - 0 1 illegal: No possible last move
1r1BQK2/5Bp1/6Rr/3q2qb/5pN1/R2Q1r2/qqqbRNkP/1nn1R1n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Bd2 f3 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 b5 a4 f2 c3 d3 a5 g3 a6 g2 e3 b3 a7 b2 Qc2 b4 Na3 b1Q Be2 f1R+ Nf3 b3 Qc1 b2 Ra2 Bb4 Nc4 Na6 Ne5 Rb8 a8R Rh6 Nc6 Nf6 Qc2 Ne4 Ne5 Nac5 R8a3 Nb3 Rg1 Rf2 Re1 g1N Bd1 Nc1 c4+ Kd6 c5+ Kd5 c6 Nc3 c7 d6+ Kf4 Bg4 c8R f5 Rc6 Bh5 Be2 Qa5 Kg5 Ke4 Bd1 Qc5 Ng4 d5 Nfe5 f4 Qb3 Na4 Bc3 d2 Nd3 Qa5 Bf6 Nc3 Be2 d1Q Bd8 Qa1 Bf1 Kf3 e4 b1Q e5 d4 Kf5 Qd2 Rg6 Qe2 Rc2 Qaa2 Ke6 Qbb2 Kf7 Nb1 e6 Qg5 e7 Qe4 Be2+ Kg2 e8Q Rf3 Ndf2 d3 Qc4 Ba5 Kf8 d2 Qd5 d1Q Bc4 Qdd4 Rce2 Qec2 Qd6 Bb4 Bf7 Bd2 Qdd7 Qde4 Qd3 Qed5
k3qrB1/4Q1p1/1RPpbr1q/2R2q2/K1r2bn1/b1NRqQ2/qN1n4/4BR2 w - - 0 1 illegal: No possible last move, all moves rejected
3n1KR1/qB3P1B/1p1Q1B2/b2q2N1/2Q5/rB1qk2b/1p1brbbn/N4R1r w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 g4 Kf6 c4 Ke5 a4 Kf4 a5 h5 g5 d5 a6 e5 a7 b6 g6 b3 c5 h3 c6 b2 f3 d3 Kc3+ e3 g7 h2 c7 d2 Qc2 d1Q Ba6 e4 Qg2 d4+ Kc4 h4 Ra4 d3 Bb5 d2 Ra2 h3 Na3 e2 Nc2 e1B Na1 e3 Ba4 e2 Qg3+ Ke3 Bb3 Qe7 Kd5 Bf2 Qd6 e1B f4 Nc6 f5 Nd8 f6 Nh6 g8B Ng4 f7 Bh6 Bh7 Re8 Nf3 Bd7 Rf1 h1R c8Q h2 Ra4 Qe2 Ng5 Qd3+ Rd4 Ke2 Ne6 d1Q Bf4 Qb5+ Qcc5 Qdd3 Be5 Bc3 Bf6 Bhd2 Ng5 Qa5 Nh3 Kf3 Qb5 Bc8 Qbc5 Qc7 Qb5 Re2 Qbc5 Ke3 Qb5 Rb8 a8B Bb4 Bc6 Ra8 Qbc5 Qb8 Bb7 Ra6 Qb5 Qa7 Qbc5 Ne6 Kc6 Nd8+ Kc7 Bd7 Qc4 Qd5 Rf4 Ra3 Rd4 Nh6 Rg4 Ba5 Rg8 Bg4 Ng5 Bh3 Ne6 Ng4 Kd7 Rg1 Ke8 h1B Ke7 Nh2 Kf8 B1g2 Ng5 Rh1
b2r4/bbB1Ppb1/Q1nnbp2/1q1R1B2/N5K1/4Nq1Q/nq6/kB2B1Rr w - - 0 1 legal: proof: f4 c5 b4 h5 g4 hxg4 d4 cxd4 f5 a5 f6 axb4 Bf4 exf6 Bg5 Ra6 Bc1 Ra8 Kf2 Ke7 Kg3 Kd6 e4 Ke5 a4 b5 c4 d5 h4 g5 a5 b3 c5 d3 a6 Kd4 c6 d2 a7 b2 e5 b4 h5 b3 e6 Nh6 c7 Qd7 e7 Nc6 Ra6 Bg7 Qe1 d1Q Qe6 Bb7 c8Q Nf5+ Kf2 g3+ Kg2 g4 h6 Nd6 Na3 Kc3 h7 b1B Nc4 d4 Qc7 b2 Bf4 d3 Ra5 d2 Qc8 Bf5 Ne3 b1Q Rd5 Kb2 Bd3 Ka1 Ne2 Qb2 Rg1 Qe8 Qcd7 Rd8 Bb1 Qdb3 a8B d1B Be5 Bdc2 Nc3 Bce4+ Kf1 Q3a3 Na4 g2+ Ke1 g3 Bc3 Bc2 Ke2 Bb3+ Kf3 Be4+ Kg4 Ba2 Rh1 g1N Be1 Ne2 Rg1 g2 Qc8 Nc3 Qed7 Rg8 h8B Bc4 Qf5 Na2 Qf1 Qac3 Qcf5 Bb3 Qa6 Qd3 Qh7 Qb5 Qh3 Qd7+ Kf4 Qf5+ Kg3 Qf3+ Kh4 Bf8 Bg7 Rh8+ Bh6 Rh7 Bf2 Bg7 Be1 Qff1 Kg4 Qff2 Rh1 g1B Bf4 Qg2+ Bfg3 Bf2 Rg1 Rh5 Nf1 Ba7 Ne3 Qgf2 Ba5 Qff1 Bge1 Rh7 Bc7 Qfd3 Qg3 Rh1 Qh4 Qf1 Qh3 Qf3+ Kh4 Ne5 Rc5 Bbc6 Bb7 Bbd5 Bc8 Ba8 Be6 Bdb7 Rd5 Nc6 Bg4 Bf5 Kh5 Bb6 Kh4 Be6 Bgf5 Qfe2 Kg3 Ba7 Kh4 Qf1 Kg4 Qf3+
2Bn2K1/3bpB1B/1QNqQ1R1/1r6/R1n1r2B/nPnq1p2/n1bb3k/r1N5 w - - 0 1 illegal: No proof kernel
1n2B3/1Np3P1/2b4R/5RB1/2Kpqnrr/q2B2Q1/1nn2qQ1/BNknb2b w - - 0 1 illegal: No proof kernel
N1R4K/1p3b1b/1Bq1q2R/2n1R3/4n1BP/RqQN1r1p/2Q1r1bb/b4r1k w - - 0 1 illegal: No proof kernel
1kq3R1/np1B4/pr4Nb/4bn2/1b2bB2/nRQqB1r1/QB1b3P/5KNq w - - 0 1 illegal: No proof kernel
1nrr4/p1r5/R5Qb/1qkr1Q1r/1r2K2P/r2p3b/2NB1R1Q/N2B1nnQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 e4 Kd6 c4 f5 h4 g5 b4 a3 b5 d3 e5+ Kc5 e6 d5 e7 g3+ Kf3 g2 e8Q d2 b6 g4+ Ke2 a2 Kd3 f3 b7 g3 Be2 f2 Qe5 f1R Bb2 f4 Qe8 d4 Qd7 f3 Qg4 f2 Bf3 Nh6 Qh5+ Qd5 Qf5 Ng4 Bc3 Nh2 Ne2 g1N Qg6 g2 Nc1 Bh3 Na3 Rh5 Nc2 Bh6 Be2 Qd7 Ke4 Qb5 Qe1 d1R Bd2 Nd7 Bg4 Rc8 b8Q Rd5 Qe5 Nb8 Qef5 d3 Qe2 Rfe1 Bf3 Nf1 Rh2 Ne3 Bg4 f1R Qef3 Re2 Qf2 Rde1 Qg3 Ref2 Bd1 Rf3 Qge5 Rg3 Qb2 Rg5 Qb1 Rh5 Qe5 Rf6 Nb3+ Kc6 c5 Rfd6 Qc1 Rf1 Qb1 Rf7 Qef5 Rfc7 Qe5 Kb7 c6+ Kb6 Qf4 Nf1 Qff5 Rb7 c7 Rc6 Qe5 Rcd8 c8Q Rc7 Qcf5 Rcc8 Nbd4 Kc5 Qeg3 R6c7 Qgf4 Ne2 Qc1 g1R Rf2 Rg2 Qh2 Ng1 Nb3+ Kc4 Rb1 a1R Rb2 Rb1 Nba1 Kc5 Ra2 Rb3 Ra6 Ra3 Qe8 Rgg7 Qeg6 Rb7 Qh1 Rgc7 Qb2 Qd7 Qbe5 Rbb3 Qeg3 Qb5 Qgh2 Rb4+
nK2r1Qb/pQ6/2N2RBb/1bb3bp/1P3b1B/3Bb1N1/1rR5/q1nkn2B w - - 0 1 illegal: No proof kernel
4K1N1/n2qb1b1/1n1k3q/N4qB1/br2rRq1/p2B1r1Q/2NP2pQ/n2R2N1 w - - 0 1 illegal: No possible last move, all moves rejected
1q4nr/1nB3k1/B1nQ4/2R2b1b/B1B1Kn2/p1p1bN2/q2P1QN1/Rrrq4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 Kf3 f5 b4 Kf7 e4 a5 g4 c5 e5 h3 e6+ Kg7 b5 h2 b6 h4 e7 a3 e8B h3 g5 a4 b7 a2 g6 a3 Ne2 c3 Qb3 c4 Qb4 c2 Bg2 Nc6 b8Q Bc5 Bf7 Be3 Rf1 h1R Qc7 h2 Re1 Rb8 Nbc3 Rb6 Bb2 c1N Rd1 Nd3 Rdb1 Nc5 Bc1 Nb7 Bb2 Rc1 Qbd6 h1Q Nd4 Qd1+ Nce2 Be6 Bh1 Qb8 Be8+ Bf7 Bc3 Rb2 Ba5 c3 Qb6 Rb5 Kg2 f3+ Kg3 f2 Kf3 f4 Ke4 f1B Nf3 Rb2 Qbc5 Bg2 Bc7 Bh3 Bg2 Rb6 Rb5 Bg4 Ra5 Rbb1 Bf1 Bfe6 Qf5 Bh5 Rc5 Bc8 Nfg1 f3 Nf4 f2 Ng2 Bd7 Ba6 f1N Qf2 Bc8 Nf3 Ng3+ Kd5 Ne2 Ke4 Nf4 Bd7 Ne5 Ba4 Nc6 B4b5 Nh6 Ba4 Ncd8 Ke5 Kg8 g7 Nc6+ Ke4 Kf7 g8B+ Kg7 Bgc4 Ng8 Rd5 Rb2 Rb1 a1Q Rc5 Qa2 Ra1 Rbb1 Nh2 Bd7 Nf3 Bf5+
4n2r/1k2Nqq1/Rr1bR1BN/4nR2/QbR1p2P/pq2Kn2/4Q2r/B1r4b w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 d5 f4 Kd7 h4 Kc7 b4 a5 c4 g5 b5 e5 b6+ Kb7 f5 a3 c5 e3 f6 g3 f7 a4 Bd2 g2 Kf3 d3 Qe1 a2 Ne2 g1N+ Kg3 a3 Qc1 g4 Bc3 d2 Qd1 d4 Bg2+ Qd5 Bb2 d3 Nd4 e2 Kf2 e1B+ Ke3 g3 Be4 g2 Qe2 d1R Bg6 d2 Nc3 Nc6 Rb1 a1R Nf5 Bd6 f8R Nf3 Nh6 Rc1 Rf5 Ra2 Ba1 Qf7 Nd5 d1Q Ne7 Bb4 Re1 Nf6 Rb3 Rb8 Rb2 Ka8 b7+ Ka7 Rc2 Ne8 Rc4 g1Q+ Qf2 Ra8 b8R Bb7 Rd8 Qg4 Qe2 Rb8 Rc8 Ba8 Rd8 Ka6 Rd7 Rb6 Ra7+ Kb5 Ra6 Qb3+ Qd3 Rh2 Re2 Nb8 c6 Nd7 c7 Qg3 c8Q Be4 Bh7 Qgg7 Qa8 Bb7 Bg6 Bd5 Nc8 Bb7 Rg4+ Kc6 Ne7+ Kc7 Re1 Be4 Qc6+ Kb8 Qa4 Kb7 Re2 Nd4 Rgf4 Bh1 Re1 Nf3 Rc4 Qa2 Qe2 e4 Rd1 Qb1 Rdd5 Qa2 Rde5 Qb2 Re6 Nde5 Qd3 Qc2 Qe2 Qb3+
q2r3B/5RbQ/1q1Nb3/1qn1N1rP/1Bb1BR1n/1BK1n2Q/r1ppk3/4r3 w - - 0 1 illegal: No proof kernel
1rNb1K1q/1BQq4/1N1Rr3/Bn2BkPn/4p1pQ/2nr3b/R7/Bq2bb2 w - - 0 1 illegal: No proof kernel
k1B5/n1q1r3/1B1N1R1p/q1nR1bpK/b5Q1/rq2bP2/3QbR1N/n3r2R w - - 0 1 illegal: No proof kernel
k1Nr1R1K/2rQ3B/qbbpn3/q2q1Q1P/QnN2Qp1/5Rr1/1b6/B1n1b3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 b5 h4 e5 c4 g5 f4 e3+ Kd3 d6 Ke4 Kd7 Kf5 Kc6+ Kg6 Kb7 a4 b3 a5 b4 h5 e4 c5 d3 f5 g3 f6 b2 f7 d2 Rh3 e2 Rh1 e1B Qg4 d1Q Qf4 e3 Ra4 b3 Bd2 g2 Nh3 g1B Qe4+ Nc6 Qg4 e2 Nf4 Rh7 Rh3 Nb4 Rf3 Bd7 Nd5 Nf6 Ne7 Bc6 Qf5 g4 Na3 b1Q Bc3 b2 Nc8 Qa1 Nc4 Bg7 f8Q b1R a6+ Kb8 Kf7 Nfd5 Kg8 Nf4 a7+ Kb7 Ra2 Rb3 Rd2 Qa3 Ba1 Qda5 Rd4 Ne6 Rdf4 Qd5 Bg2 Rb8 a8Q+ Kc7 Qa6 Bb2 Bf1 Rg7+ Kh8 Ra8 Q8f6 Kb8 Qb5+ Rb7 Qa4 Rc3 Qf7 Rc7 Qd7 Bd4+ Qe5 Kb7 Rf8 Rb8 Bg2 Ka8 Bh1 Bdf2 Qf4 Bg1 Re3 Qa6 Be4 Bgf2 Rf3 Be3 Ne7 Rd8 Nc8 Bg1 Bh7 Be3 Qb3 Q3a5 Qa3 B1f2 Qa4 e1N Qa3 Ned3 Qa4 Bb7 c6 Bb6 Qdf7 Be1 Q7f5 Rf7 c7 Bc6 Ne7 Nc1 c8Q+ Ka7 Qd7+ Ka8 Nc8 Rg7 Qe8 Rc7 Qd7 Rc2+ Qd4 Rg2 Qde5 Rg3 Qd4 Ba3 Qdf4 Bb2+
B1r5/R1Qbr2b/Pn4Nq/qB6/Bkp1pq2/q3Q1r1/n1R5/BKb2n1N w - - 0 1 illegal: No proof kernel
2N1Qrb1/1q1BrPN1/B1p2K2/BbQ5/2r5/r1RR1n1B/n2p2qq/nk2b3 w - - 0 1 illegal: No proof kernel
8/2RqpkNr/B1n2PnB/3Rn3/1Q2b3/1R1qRN2/1q2bp1r/b1Kbr2Q w - - 0 1 illegal: No proof kernel
1qRnQ3/qpB1QN1B/r1n5/q7/1p3Pk1/1bR2r2/bnr1r1K1/b3N1BB w - - 0 1 illegal: No possible last move, all moves rejected
2b4Q/p2qn2P/rN3qb1/1q4r1/6Bp/1R1B2b1/4nkBn/qQBKR1Nr w - - 0 1 illegal: No proof kernel
3b3r/rnBbb2Q/R2R4/1n4b1/n1BBp1bb/k1P3pN/2BN3q/1QK2r2 w - - 0 1 illegal: No proof kernel
1Q1BrkNn/B1RB3b/1P1Rnb2/n4qp1/r1B2n2/p1n5/3b1nK1/Q1N1r3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 g5 h4 d5 e4 f5 c4 a5 b4 f3 b5 d3 b6 g3+ Ke3 d2 c5 g2 Kf2 a3 h5 f4 h6 a2 e5 d4 e6 a4 c6 d3 c7 a3 h7 Nd7 e7 Nc5 Rh5 Qd5 Rh4 Nh6 Qb3 d1N+ Ke1 f2+ Kd2 f3 Qc2 Ne6 Nc3 Nf7 Rc4 Ra4 Ne4 Qf5 Qb2 Nc3 Ke3 d2 Ne2 g1N Rb1 Bb7 c8B a1B Rc7 Nh3 Qa2 Rg8 h8B Nhf4 Bf6 Nh8 Bd7+ Kf7 Rb4 Bc8 Rd4 d1N+ Kd2 Bg7 Rd6 Re8 Bb2 Ba6 Nc1 Bd3 Be2 f1N+ Ke1 Bc2 Bc4 Nfe3 Be5 Bf8 Nf6 Nf2 Ng8 Bg7 Qb1 Bf6 Qa2 Nf1 Qb1 Nd2 Qa2 Nb3 Kf1 Na5 Kg1 Rf8 e8Q+ Kg7 Qd8 Re8 Qb8 Kf8 Kh2 Ncd5 Bbd4 Bc3 Qa1 Bd2 Bb2 Nc3 Kg3 Bg7 Bf6 Bb1 Bd8 Bf6 Kh2 Qd5 Kg1 Bh7 Kh2 Qf5 Kg3 Ncd1 Be5 Nc3 Kh2 Nfd1 Kg1 f2+ Kh1 f1R+ Kh2 Nfg6 Kg2 Nf2 Ra7 Ncd1 Rd3 Nc3 Qa8 Ncd1 Bb8 Bdc3 Rd6 Bd2 Rc7 Nc3 Ba7 Re1 Qb8 Ngf4+
b1bbkN2/1r4n1/3n1R1r/B1Pb2qN/3bp2p/N4nn1/N1R1QKn1/1Q1B4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 h5 g4 e5 a4 d5 c4 b5 a5 h3 c5 h4 g5 e3 f5 e2 f6 d3 a6 d4 a7 h2 g6 d2+ Kf2 e1B+ Ke2 b3 g7 d3+ Kf3 b4 Kg2 b2 Nc3 b1N Qc2 d1B Qb3 d2 Ra2 Nc6 Qa3 b3 Bb2 Nce7 Bc1 b2 Ba6 Bb3 Nge2 d1N Kf3 Rh6 Rg1 h1N Qb4 Nf5 Rf1 Nge7 g8N Bg7 Bd2 Nd6 Nd4 Ne3 Be2 Ng2 Bd1 Nef5 Nc2 Nhg3 Na3 Rb8 a8Q Rb7 Qa6 Bd5+ Qe4 Bf2 Qe2 Bd4 Be1 Bf8 Rf2 Be7 f7+ Kd7 f8N+ Ke8 Bd2 Ng7 Nf6+ Kf7 Nh5 Ke8 Be3 Bg5 Rf1 Nd2+ Kf2 b1B Rc2 Nf3 Na2 Qf6 Q4d3 Qg6 Qe4 Bd8 Qf5 Qg5 Qfd3 Bb2 Bd2 e4 Ba5 Bc6 Nc1 Ba2 Qb5 Bd5 Na2 Rb8 Qb3 Ba8 Qb6 Be5 Qb3 Rb7 Qb1 Nfe1 Kg1 Bb2 Rf6 Nf3+ Kf2 Bd4+
bkn1bBN1/bB1rQ3/1r2n1R1/NR2r3/npP1r1p1/1N2q1nK/r7/3NQ3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 Kg2 Kd7 a4 Kc7 h4 g5 e4 b5 c4 f5 e5 b3 a5 b2 h5 g3 e6 d3 e7 f3+ Kh3 d4 e8Q f4+ Qe6 g2 h6 d2 a6 d3 h7 f2 a7 f3 Qb3 d1N Kg4 d2 Nc3 b1R Kh3 Qd3 Kg4 Na6 Qc2 Nb2 Na2 d1R Ne2 g1R+ Kh3 Bd7 Nec3 Ne7 Qe2 Rg4 Nb4 Nc8 Nc6 Na4 Qe1 Bc5 Qe7 Qe3 Bg2 f1N Na5 Ng3 Ba3 f2 Bb7 Re8 h8N Rb2 Nf7 f1B+ Bg2 Ra2 Nh6 Rb8 Ng8 Rb6 a8N+ Kb8 Nc7 Re4+ Ne6 Nc7 Rb1 Bc6 Nd4 Ne6 Ndb3 Rd7 Nd1 Bd3 Nc1 Ba8 Ncb3 Re5 Bb7 Bg6 Rf1 Bh5 Rf6 Bf7 Qd8 Ree7 Rg6 Be8 Bb2 Re4 Bg7 Re5 Bf8 b4 Ra1 Rf7 Qe7 Rf4 Rc1 Bd4 Rc2 Rfe4 Re2 Rbb5 Rd2 Ba7 Rd5 Rb6 Rb5 g4+
Bnn2Q1R/b7/1r1r2B1/Bk4Kp/1p3N2/1rP3r1/1Q1b1rR1/qNnn1b1B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 f4 d5 a4 Kd7 g4 Kc6 a5 e5 f5 b5 f6 e3 Kf3 h3 a6 h2 c3 d3 g5 e4+ Kf4 d4 a7 d2 f7 b3 g6 d3 g7 b4 Nf3 b2 Qc2 d1R Ra3 e2 Ra2 e1B Qg2 d2 Ra1 e3 Na3 b1R Nb5 e2 Ra5 Ne7 g8B Bh3 Bh7 Nc8 Qf2 Rg8 Ng5 Bc5 f8Q Rb3 Rg1 h1R Na3 Rh2 Ne6 Rg3 Bg6 Qd5 Ra4 Qh1 Nb1 Kb5 Bg2 Bb6 Bf3 Bf1 Kf5 Bd4 Nf4 Be3 Qg2 B1f2 Ra6 e1N Rd6 Nd3 Rd8 Be1 Qe2 Rf2 Rg2 Nd7 Bb7 Rb8 a8B Ba7 Be4 Rb6 Re8 Re3 Kg5 Qg1 Qf7 Nb8 Rh8 Qh1 Bed5 Ree6 Qf8 Red6 Bb2 Rc1 Bdb7 Rc2 Bc1 d1N Be3 Bd2 Bd4 Ra2 Bf6 Rf3 Bd8 Rab2 Qf2 Nc1 Bbe4 Rb7 Ba5 Rbb6 Rg4 Rh3 Bf3 Qg1 Bh1 Rg3 Qg2 Be3 Qh2 Rf2 Qg2 Bd2 Qh2 Rgd3 Rg2 Rg3+ Kh4 Re2 Bf7 Ne3 Be6 Nd3 Bf7 Qf2 Bg6 Qe1 Rg1 Bc1 Nd2 Qd1 Qf2 Qe1 Rg2 Qd1 Qe1 Rf2 Qe2 Qe1 Nb1 Qd1 Qb2 Bd2 Na3+ Ka4 Qe7 Qa1 Nb1 Nc1 Qd8 Nd1 Qf8 Rgf3 Kg5 Kb5 Rg1 Rfd3 Rg2 Rg3+
2r3nR/Q3r2B/1r1nQ1Bb/p1B1K2p/1rNN1b1R/nb5q/b3P3/4Bk1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 c4 d5+ Ke5 a5 g4 f5 g5 h5 b3 f3 g6 f4 g7 d3 Na3 d4 Nc2 f2 Ra2 d2 Nh3 d3 Qe1 d1N Qc3 d2 Bg2 f1R Nd4 f3 Nf2 a3 Rb2 h3 Nb5 h2 Qd3 a2 Na7 a1B Qb1 Be6 Nc6 Na6 Qa2 Nc3 Ng4 d1B Nd4 f2 Be3 Nb4 Be4 Rb8 Bg6 Qc8 Rb1 Nc2 b4+ Kb6 b5 Kc5 b6 Nb5 b7 Nca3 Bd2 Nd6 Be1 Bb3 Ne3 Bc3 Qa1 Bd2 Rc1 Kb4 c5 Ba2 c6 Beb3 c7 Qh3 c8Q Rh7 Rg1 h1B Qe6 Rc8 Rg4 Rg1 b8B f1R Rh4 Rf6 Bc7 Rg4 Bb6 Rgf4 Qb1 Rg4 Rd1 Kc3 Bc5 Rgf4 Qe4 Rg4 Qa8 Rgf4 Ndf5 Rb4 Nc4 Kc2 Rb1 Be3 Rb2+ Kd1 Nd4 Bh6 Rc2 Be7 Qa7 Bd8 Bc3 Bc7 Rd2+ Ke1 Rc2+ Kf2 Be1+ Kf1 Rc3 Ne7 g8B Rhf7 B8h7 Ng8 Rc1 Re7 Rb1 Rff8 Rb2 Rcb8 Rc2 R8b6 Rc3 Rc8 Rf3+ Kg2 Rf8 Bb8 Re8 Kf1 Rd8 Nf6 Rh8 Ng8 Nf3 Bc7 Nd4 Ne4+ Kd5 Bg3 Bf5 Bgf4 Bfg6 Be3 Ke5 Nd6 Bc2 Beg5 Bcg6 Bf4+
2rb3k/2r1Nrrb/4KB1p/3BbPB1/3N1pBq/4Q3/2bb3n/2R1nRnQ w - - 0 1 illegal: No proof kernel
r1N1bR2/B3K1q1/3QnRp1/r2rp3/1B1B4/1bb1bPQN/bnB5/4r1nk w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 h4 c5 d4 e5+ Ke3 Kf5 a4 g3 f3 g6 d5 b3 h5 c3 d6 b2 a5 g2 a6 c4 h6 c2 a7 b4 d7 c3 h7 b3 Qd2 Na6 Rh4 Qe7 d8B Qg7 Nh3 g1N Bg5 Ne7 Qe1 Bd7 Qd1 Be8 Qd8 Nc5 Qd6 Na4 Be2 Nc6 Na3 b1B Nc4 b2 Bd3 Nd4 Nb6 Ne6 Nc8 Ba2 Be7 b1B Bb2 c1R Bc2 Rg8 h8B Rd1 Bd8 Rd5 Bb6 Bb3 Ra3 Rb8 a8Q B1a2 Qa5 Ra8 Ba7 Be7 Ba1 Nb2 Qac5 Bd8 Ra6 Ba5 Qd4 Bb4 Qd2 Rf8 Qg2 Rf7 Rc6 Rb7 Rh6 Rbb5 Qg3 Ra5 Rb6 Qe7 Bf6 Qg7 Bb1 c2 Be7 Bc3 Rh8 Rd2 Ra6 c1B Bc2 Rd3+ Kf2 e3+ Kg2 e2 Rf8+ Qf6 Rc6 e1R Rb6 Na4 Kh2 Be3 Bb2 Bb4 Bd4 Bc3 Qb8 Nd8 Qf2 Bd7 Kg3 Rd1 Bb4 Re1 Bdc5 Be8 Rc6 Qf7 Kh4 Nb2 Re6 Bd7 Qd6 Be8 Ng5 Kf4 Qg2 Bed4 Nh3+ Ke3 Kg5 Qg7 Qg4 Ke2 Qh4 Kf1 Qg3 Bf2 Bcb6 Rdd5 Bd4 Be3+ Qf4 Qh6+ Kf6 Kg2 Ke7 Kh1 Ref6 Ne6 Qg3 Qg7+
5b2/2nq1bB1/k2bPbBq/1p3Nr1/rrR1BQ1B/3Kb1np/2R5/N1b1Q3 w - - 0 1 illegal: No proof kernel
3r4/Rb1N4/2PK2k1/qNR2q1b/Qpbr1Bn1/1Q2Nb2/4bp1N/2b2Bnr w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 d5 g4 h5 e4 f5 a4 Kf7 c4 h3 e5 b3 a5 h4 c5 h2 g5 d3 a6 d4 c6 h3 e6+ Kg6 e7 b4 e8N b2 a7 d2 Nd6 d3 Qc2 d1B+ Ne2 d2 Qc3 Nd7 Bg2 Ne5+ Kf2 f3 Ke3 f4+ Ke4 f2 Kd5 f1B Qb3 f3 Ra5 f2 Nd4 Rh4 Nf5 Bb7 Qa4 Bh5 Rc5 d1B Ne3 Nf3 Nd2 Ng1 Nf3 Qa5 Nb5 Bh6 Kd6 Bc4 Bf1 b1Q Bd2 Re8 a8N Bde2 Nb6 Qf5 Nd7 Nf6 Bc1 Ng4 Bd2 Kg7 g6 Rd8 Bc1 Bg5 Bd2 Kh6 g7 Kg6 Bc1 Bh6 g8Q+ Bg7 Qh8 Bb2 Qc3 Ba3 Bd2 Bb2 Qcb3 Bc1 Ng5 Nf3 Rg1 h1B Rg3 Ng1 Nf3 Bg2 Nh2 Be4 Rf3 Bed5 Rf4 Bdf3 Re4 Nf6 Re7 Rd4+ Nd5 Ng4 Bf4 Bd1 Rf7 Bde2 Rh7 Rg8 Nb8 Ba8 Ra7 Bb7 Nd7 Nf6 Ng4 h2 Qb2 h1R Qbb3 Rd8 Nh2 Re4 Ne3 Ng4 Bg5 Rf4 Bh6 Re4 Bf4 Rd4+
1bB4Q/R2KQ2N/bP4kb/2qrp3/p1r3b1/2qbb3/q1nB2Q1/2N1Q1nR w - - 0 1 illegal: No possible last move
B2b1b1r/4Nr2/1PpN4/q2b4/b2bR1qN/1R2npQ1/1BnQb3/K1N1rk2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Ke6 d4 Kd5 Kd2 Ke4 Kc2 f5 Kb2 a5 g5 h5 e3 f3 g6 f4 b5 f2 b6 c3+ Ka2 h3 d5 h2 g7 h4 d6 a3 d7 a4 Nf3 c2 Bd2 c1B Ne5 h3 Ng4 Ne7 g8Q Na6 Bg2+ Kd3 e4 f1B e5 Be2 e6 Ra7 Re1 h1B Qg7 h2 Ne3 Nd5 Qg8 Qh4 d8N Bd7 e7 Qg4 Nf5 Ne3 Nc3 Nb4+ Kb1 Nbc2 Ba8 Bd5 e8N h1R Nfd6 f3 Na2 Bb2 Ng7 Bf6 Nc6 Bd8 Ngf5 Rg1 Nc3 a2+ Kb2 Rb7 Nce7 Rgh1 Rc1 a1B+ Kb1 a3 Na2 Be5 Nh4 Ba4 Qg5 c6 Qf4 Bd4 Qg3 Nf1 Bc3+ Ke3 Bb2 Rc7 Qf4+ Kf2 Qdd2 Nfe3 Rcd1 Rf1 Nc1 Ra7 Qb4 Rg1 Rd3 Rd7 Qd2 Rb7 Nef5 Rf7 Rb3 Rf1 Ne7 Rh1 Rd1 Re1 Qg3+ Kf1 Qc3 Bf6 Rd4 B6g7 Re4 Bd4 Ba1 a2+ Kb2 Bc5 Qd2 Bd4+ Rc3 Nb4 Ka3 Bab5 Bb2 a1Q+ Na2 Qc1 Rb3 Qc3 Nc1 Nbc2+ Ka2 Qa5+ Kb1 Ba4 Ka2 Nb4+ Ka1 Nbc2+
4QKrR/5bpb/n2NpqR1/P2k1B2/2bbNrbR/3n2R1/2n4B/r1Q1n3 w - - 0 1 illegal: No possible last move
R2K3n/3nP1n1/b5QR/bnBrqrN1/2R1B1k1/1q2pp1b/N7/1nRn3Q w - - 0 1 illegal: No proof kernel
BB1k1nb1/nbrp2p1/r1Q1bb2/b1K3B1/1R2Qq2/3N4/r2B2PR/1N2q1b1 w - - 0 1 illegal: No possible last move, all moves rejected
Q2R1bn1/3pp1R1/2bB1P2/q3N1bb/1nBr3N/4b3/Nnk3n1/r1r1QNK1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 c4 Ke6 f4 Kf5 Kf2 g5 h4 b5 h5 b3 a5 d3 h6 b4 c5 e3+ Kg2 Ke4 a6 b2 f5 d2 a7 b3 c6 e2 f6 Kd3 h7 g3 c7 g4 Ra2 Na6 Ra3 Nb4 Rh6 Bb7+ Nf3 Bc6 c8Q Qa5 Kg1 g2 Qe1 d1N Ra1 Kc2 Nbd2 b1B Rg6 b2 Ne5 Ba2 Qd8 b1R Ba3 Rc1 Rg7 Bf7 Rb1 Nb2 Qc8 Na2 Bd6 Nb4 Ra1 Bh5 Qa6 Rc8 a8N Rc7 Rb1 Ra7 Nb6 Ra8 Nd5 Ra7 Qh4 e1N Nc3 Ra8 Bc4 Ra7 Kf2 g1B+ Kf1 g3 Na2 Bb6 Qc8 Bc7 Qa8 g2+ Kg1 Bb6+ Qf2 Be3 Ra1 Bg5 Qe2 Ned3+ Qe1 Nf4 Nf1 Bb5 Kh2 g1B+ Kh1 Be3 Kh2 Bd2 Kg1 Bc6 Rb1 Ng2 Ra1 Nh6 Rb1 Rg8 h8N Bdf4 Nhg6 Rh8 Ra1 Ng8 Nh4 Rh6 Nc3 Rg6 Ra4 Bd2 Na2 Bge3+ Kh1 Rg4 Ra3 Bg5 Kg1 Rd4 Rb3 Nd5 Rb8 Nb4 Rd8 Bde3+ Kh2 Qb5 Nc3 Raa1 Na2 Qa5 Kh1 Bd2 Kg1 Bde3+
q3KQ2/1PbQ1rp1/1RBn1b1B/b4b1r/N2Q3b/n2pQ3/k3NrR1/3b3q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 e4 d5+ Ke5 f5 h4 a5 c4 f3 h5 f4 b3 g3 c5 a3 h6 f2 h7 g2 c6 f3 c7 a4 Qd3 a2 Rh2 a3 Rh3 Be7 Qe2 d3 Bb2 d2 Rh2 d1B Rh6 d4 Rc6 d3 Ra6 Nd7+ Ke6 Nb6+ Kf7 Nc4 e5 Ra7 e6 Bh4 e7 Bf5 e8Q Ne7 Qe3 Nc8 Ne2 g1B Bg2 f1R Qd4 f2 Qee3 Bh2 Nbc3 Qd5+ Re6 Qa8 Na4 Be5 Rb1 a1B Rg6 a2 Bc1 Bc3 Bc6 a1B Rg2 Rb7 Bd2 Ka3 b4 Ka2 b5 Ba5 b6 Na3 Rb5 Re1 Rb4 f1Q Rb1 Ra7 b7 Qh1 Rb5 Rf1 Rb6 Rf2 Bc1 Re8 h8Q Re7+ Kf8 Rf7+ Ke8 Beg3 Qf8 Ra6 Qde4 Baf6 Q3d4 Bd6 Bh6 Bf4 Rb3 Rb6 Qee3 Rb5 Rb1 Nb6+ c8Q Bc7 Qcd8 Nc8 Rb4 Bh7 Q8d7 Rh5 Rb1 Bf5 Rb6 Nd6#
2r4b/Pr2r1Q1/n5p1/4NBkr/Kn2rR1b/Bp1R2q1/3N1qbr/Q2N2N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Kf6 a4 b5 h4 d5 c4 g6 Kc2 b3+ Kb2 g3 h5 f3 h6 d3 c5 b4 c6 g2 c7 d4 a5 f2 a6 d2 h7 d3 e5+ Kg5 e6 f5 a7 f4 e7 f3 e8N Bb7 c8N Nf6 Ra2 Na6 Ra3 Bg7 Rh4 Nd5+ Nc3 Qd6 Ne2 g1B Ne7 Qg3 Rc4 Rc8 Bh3 f1R Be6 f2 Re4 Re1 Re3 f1Q Re4 Bf2 Kb1 b2 Ka2 b1R Ng1 Bf6 Rh4 Re4 Rf4 Qe2 Qe1 d1R+ Bb2 d2 Kb3 B2d4 Ka4 Qef2 Nc6 Bde5 Qf1 Rde1 Nd6 d1R Bf5 Rd2 Nd1 Bc3 Nc4 Re7 Ra1 R1e4 Ba3 Rbb2 N6e5 b3 Rh4 Ndb4 Rf4 Rdd7 Nd2 Bd5 Rc1 Rb7 Rc2 Bd4 Rc3 Qff3 Rd3 Re3 Ng4 Kh5 Nc4 Bh4 Nc3 Kg5 Qa1 Rh2 Nd2 Qff2 Nd1 Bg7 Ne5 Bg2 Qb2 Re4 Qa1 Rhe8 h8Q Bf6 Qg7 Rh8 Qf7 Rh5 Qf8 Bh8 Qf6+ Kh6 Qg7+ Kg5
2bb1q2/k1n3b1/n7/n1nR1NKB/B1p1rQPB/2qrBpb1/2b1R3/4Q2N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 d4 Kb6 e4 c5 b4 f5 g4 a5 e5 h5 e6 c3 e7 c4 e8B a3 d5 a4 d6 c2 d7 h3 b5 a2 Bf7 h4 Qe2 a3 Qd2 h2 Bh3 Qf6 d8Q+ Ka7 Qe1 Bg7 Qf1 Qc3+ Qdd3 Nf6 Nd2 Rd8 Rb1 a1B Bh5 a2 Bg6 Nd5 Bb2 c1B Bf7 Nc7 Bg6 Nba6 Bg2 h3 Nb3 Be3 Qe4 Bb6+ Qe3 Rd3 Ne2 Be5 Rg1 h1N Ng3 h2 Qe1 Nf2 Bh5 h1B Bc1 Ne4 Nd4 Nec5 Rb2 Rb8 Rc2 Rb7 Re2 Bb2 Rf1 a1N Rff2 Bd6 Rd2 Nab3 Rfe2 Na5 Rd1 Nd5 Rdd2 Bd8 b6+ Ka8 Rd1 Re7 b7+ Ka7 Bd2 Ndc7 b8B+ Kb6 Kf2 f3 Qf4 Kb7 Be3 Ba1 Qg5 f4 Ndf5 Qc1 Rdd2 Bg7 Ba7 Qc3 Bb6 Nd7 Bbd4 Ka8 Bf6 Ndc5 Qh6 Ka7 Bh4 Bde5 Rd1 Rdd7 Rd5 Rd6 Kg1 f2+ Kh2 f1Q Kh3 Qf2 Be4 Rdd7 Bc2 Be4 Ba4 Bc2 Nh1 f3 Bc1 Bg3 Qf4 Qfd4 Bd2 Qf6 Be3 Qf8 Bf6 Bh2 Kh4 Bg3+ Kg5 Rd6 Kg6 Rdd7 Bh4 Rd6+ Kg5 Rdd7 Re5 Rd3 Rd5 Re4+
1n1RQq1n/b2B4/q2qq3/1rNb1qRp/1Q1B3N/2rn4/P1k1p2n/2B1B1K1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 f4 Kd7 Kf2 Kd6 d4 Kd5 g4 e5 f5 c5 f6 h5 g5 b5 f7 h3 g6 e3+ Kf3 c3 g7 b3 Nd2 h2 Kg2 e2 Nh3 e1Q Nb1 Ke4 d5 b2 d6 c4 d7 c2 Bg5 c1Q Be2 c3 Bc4 b4 Qb3 c2 Qc3 b3 Be3 Ra3 Be6 Bc5 f8B Bb7 Bf7 Nh6 g8Q Qcd1 Nf4 c1N Bd4 Ba7 Qc5 Nd3 Qc3 Bd5 Rg1 h1N Be8 Ng3 Bf2 Nf1 Qe6 Nf7 Bb6 Nh2 Bd4 Rh6 Qd2 Nh8 Qb4 Qc8 d8B Qa6 Qg8 Rb6 Bh4 Rb5 Ng6 Qe3 Bf2 Qh6 Nh4 Qhe6 Kh1 Qf1 Bg3 Qff6 Bg7 Qf8 Be1 Qad6 Bd7 Qa6 Bdc3+ Ke3+ Rg2 e4 Nd2 b1Q Kg1 b2 Nb3 Qd1 Nc5 b1Q Bb2 Rc3 Rg5 Ke2 Bf6 e3 Bd4 Qd2 Bc1 Kd1 Qf7 e2 Qg6 Kc2 Qe8 Qb3 Rb1 Qc4 Rb3 Qef5 Ra3 Qae6 Ra6 Qd1 Rc6 Qd2 Rc8 Qdf4 Rd8 Q4d6 Ne4 Qcc6 Nc5 Qa6
n1k1N1r1/1r1b3N/4RN2/2N1K2p/n1bPb1Qr/1b1q4/3pB1QB/r1bq1R2 w - - 0 1 illegal: No proof kernel
4rb2/1B5n/R1b2NR1/5pq1/qrQrN1n1/2R1p1nk/K1PnR2B/Q1r2n2 w - - 0 1 illegal: No proof kernel
Q2bB3/1r3R1n/K2B1nPN/3q4/1p1QBrpR/nBNn1bq1/q2q2n1/2k5 w - - 0 1 illegal: No proof kernel
1N5N/Qqb1Qb2/2n1pB2/qn2r3/1QbQ1p2/B6b/2rRnPk1/nK1b3R w - - 0 1 legal: proof: h4 c5 e4 a5 b4 d5 h5 dxe4 h6 a4 Be2 cxb4 Bc4 gxh6 Rh4 h5 Bb3 axb3 Rh1 h4 d4 Kd7 Kd2 Kd6 g4 Kd5 a4 b5 g5 f5 a5 h5 c3 h3 g6 h4 g7 f4 a6 b2 Kc2 h2 a7 h3 Ra4 e3 c4+ Ke4 d5 e2 d6 e1N+ Kd2 b3 d7 b4 c5 Rh5 c6 Nc2 c7 Na6 Na3 b1N+ Ke2 b2 Be3 Nc3+ Kd2 b1Q Nf3 Ne2 Bd4 b3 Nc4 b2 Ra5 Re5 Rc5 Na1 Bc3 e6 Qe1 Bd6 Nh4 Ne7 g8Q Nc6 Ng6 Kf3 Qf8 Kg2 Rd5 Bb7 c8Q Qa5 d8B Nc7 Nh8 Nb5 Nb6 Ba6 Nd7 Bc7 Qb7 Rc8 a8Q Qe4 Rd6 b1B Qb6 Bc2 Bh4 Bd1 Qd4 Qh7 Qe7 Qf7 Rf1 h1B Qaa7 h2 Bf6 Bb8 Qe3 Nc7 Qac5 Nd8 Qe4+ Kh3 Qa7 Bf3 Qee3 h1B Qf8 Bg2 Bb4 Bd3 Qg7 Nb5 Qeb6 Rc3 Ba3 Bh5 Qh7 Bc4 Rh1+ Kg4 Rd3 Bh3 Qd4 Nc6 Qg7+ Bg6 Qh7 Bd6 Nb8 Qb7 Qg7 Bc7 Qe7 Bdb3 Qb1 Bd1 Qbb4 Rc1 Rc3 Bf7 Rc2 Kf3 Ra2 Rc3 Rc2 Ng1 Kc1 Kg2 Kb1 Ne2 Rd2 Rc2
NqR5/2rB3Q/3pbN1K/1bB2R2/r3R2b/nPq5/bpr1QRn1/k3rb2 w - - 0 1 illegal: No proof kernel
4R1r1/qr2BK1n/2P4B/1np2pbq/1N3r2/kB1Q3B/q1R3r1/q1rbQ2N w - - 0 1 illegal: No proof kernel
8/B1R1K1p1/1b1RN2b/nQn2b1B/rQ3N1n/Pn4pN/2kb1rq1/q1Nb4 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kg6 c4 Kf5 f4 d5 h5 e5 a3 b5 h6 e3+ Kd3 b3 c5 e4+ Ke2 g3 h7 b4 c6 b2 c7 d3+ Ke1 b3 Qf3 e2 Kd2 e1B+ Ke3 d2 Kd4 d1N Nc3 b1N Na2 b2 Rh2 e3 Rh6 e2 Bg2 Ndc3 Rh1 Ra4+ Nb4 Ne7 Kc5 d4 Qb7 d3 Bd5 d2 Nd3 d1B Bf3 Nbc6 Qb5 Nd2 Rh6 b1Q Qb4 Qe8 Kd6 Nb3 Be3 Nca5 Ba7 Bd2 Ra2 Be6 c8Q Qa1 Qcb7 Qa8 Nc1 Rg8 h8N Ng6+ Qe7 Nh4 Rc2 Bc8 Bh5 Qg2 Qc4 Be6 Qb5+ Ke4 f5 Bg5 f6 e1B f7 Bed2 Rf6 Bge3 Nh3 Bh6 Bb8 Kd4 Ng6 Beg4 Re6 Ne4+ Kd7 Ke3 Qeb4 Bc5 Ba7 Bb6 Ke7 Rf8 Rd6 Bd7 Rc7 Nec5 Rf6 Bc3 Re6+ Kd2 Rf6 Kc2 Rd6 Rg8 f8N Bcd2 Ne6 Rf8 Neg5 B7g4 Ne6 Rf2 Ngf4 Bf5
r1rrn1bR/3k2p1/r3qpQn/7n/2qn2N1/NBRPQ3/1R3n2/3KbRB1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 c5 h4 b5 e4 c3 d3 f6 a5 b3 h5 c2 h6 c4 e5 b4 h7 c3 a6 g3 a7 b2 e6 b3 e7 g2 Ra4 f3 Bf4 c1Q Be5 c2 Bd6 f2+ Ke2 Na6 Rhh4 Kd7 e8R Qe7+ Rhe4 Nc7 Nh3 Nh6 Ra6 Qe6 Na3 b1R Nf4 b2 Bc5 Ra1 Qd2 b1N Qe3 Nd2 Nd5 Nf3 Rc6 Bb7 Rc8 Ne8 Rb8 Ra2 Bb6 Bb4 Rf4 Be1 Rc3 Ba6 Bd4 Bc4 Rb2 Rg8 h8R Bb3 Nb5 Ra6 Na3 Rd8 a8Q Rf8 Qe4 Ba2 Rf5 Qf4 Bb6 c1R Qe3 Qc4 Qb8 Rc2+ Kd1 g1N Bh3 f1N Qg3 Nd4 Qg6 Ng3 Rf1 Nh5 Bc7 Qc6 Bg2 Rda8 Qf2 Qed6 Rcb3 Nh3 Ne3 Qcd5 Bb8 Rc8 Rc3 Nc7 Ng4 Rfd8 Qe3 Ne8 Bc7 Q6c5 Bh2 Qf5 Bh1 Bg8 Bd5 Qe6 Bb3 Qcc4 Bg1 Nf2+
1bR5/qPr1rbNN/1r6/qB4QQ/p1N5/1Rr2pB1/N1K2nbn/2b1kb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 Kd6 c4 Ke5 e4 a5 g4 h5 g5 d5 c5 f5 b5 a3 g6 d3 g7 Kd4 e5 a2 b6 a4 c6 h3 c7 f3 b7 h4 e6 h2 e7 h3 e8Q f2 Nc3 f4 Qdh5 f3 Qe1 Ra6 Kd1 d2 Nce2+ Kd3 Qg4 d4 Qe6 Nf6 g8N Bd6 Ne7 Ne4 Qg4 Nc6 Qg5 Rb6 Qg6 Be6 c8N Re8 Qf6 Ne5 Qh4 Bf7 Rb1 a1B Nd5 Bb2 Qh5 Re7 Ndc3 Ng4 Qh6 Bb8 Bg2 f1B Qg3 Qd5 Nd6 Qa5 Qg6 Ke3 Qf5 Nef2+ Kc2 Ba3 Bb2 d1R Na2 Rd3 Qh5 Qa7 Bc3 Bc1 Be1 Ra3 Rb3+ d3+ Kb1 Rc7 Nf4 Re7 Ne6 Rc7 Rb2 d2 Ng7 Rac3 Rb3 d1Q Nc4+ Kd3 Qf4 Qd2 Qfe5 Qg5 Qf4 Qga5 Qfg5 Ne4 Bg3 Nef2 Ne2 Re7 Nd4 Rc7 Rg1 h1R Nde6 Ke2 Nf8 h2 Nh7 Ke1 Bh3 Nh6 Bf5 Ng4 Bd3 Re7 Rg2 Rg1 Be2 h1B Rh2 Bhg2 Rh1 Rd3 Kc2 Rc7 Rh4 Nh2 Rd4 Re3 Rd8 Ree7 Rc8 Bh3 Bh4 Rg4 Bg3 Bhg2 Bd3 Rd4 Bf5 Rde4 Bd7 Re3 Bb5 Rc3+
n2b1q1q/1p5p/1Q6/BQr1N3/NqNKbRn1/R2N1Pbk/1rB3b1/2b2q2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Ke6 a4 d5 c4 e3 Kd3 b3 a5 b2 c5 e2 g5 Kf5 c6 Kg4 c7 e5 g6 h3 g7 h2 a6 e4+ Kc2 d3+ Kc3 d4+ Kc4 d2 a7 e3 Na3 b1Q Nf3 e1B Qe2 d1Q Qb2 e2 Nc2 d3 Ncd4 d2 Qb3 Nd7 Bg2 Nh6 Bf1 Ba3 Nc6 Qf8 Qb5 Nb6+ Kd4 Bf5 c8N Be4 Nd6 Qb4+ Nc4 Qda4 Ra2 d1Q+ Bd2 Bc1 Ra3 Rg8 Bg2 Rc8 Rf1 h1B Nfe5+ Kh4 a8N Ng4 Bf3 Bg2 Nd3 Kh3 Nce5 Rc5 Bc3 Qac2 Bd2 Qcb2+ Bc3 Nd5 Nb6 Nc7 Na4 Na8 Qb6 Bed2 Qb5 e1B Be2 Qdb3 Bd1 Bg5 Bc2 Bd8 Qb6 Qa1 Qb5 Qbb1 Qb6 Rh8 g8Q Qab2 Qd5 Rg8 Qdc6 Rg5 Qcb5 Rg6 f3 Bg3 Re1 Q1a1 Bd1 Qe2 Bc2 Qf1 Re3 Bd5 Re4 Rg5 Rf4 Be4 Q5c6 Rb5 Ng6 Rgc5 Nge5 Qa5 Qd5 Rb2 Be1 Qb5 Ba5 Qb3 Qd7 Qb4 Qdb5 Qa2 Ng6 Qh8+ Nge5 Qbe1 Ne3 Qf7 Nc4 Qff8 Qc7 Qd2 Qcb6 Qb4
3RK3/1n1n2Q1/1qQ3r1/1rb4b/pBqqp1k1/3P1N2/QR1Q2b1/nBNb2n1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 Kg5 b4 h5 g4 a5 f3 c5 b5 c3 b6 h3 d3 c2 b7 a3 Nd2 a4 Qe2 a2 Bb2 c1N Ba3 h4 Rb1 a1N Qf2 c4 Qh2 c3 Be2 c2 Rb4 Ra5 Qf2 h2 Rb2 h3 Bb4 Nd7 b8Q Rb5 Qb6 Ne7 Qc6 Rg8 Bd1 Rg6 Nb3 Ne2 Nc1 Bb7 Qe1 Nc8 Qd2 Nd6 f4+ Kh4 g5 Kg4 Nf3 Ng1 f5 Qb6+ Qc5 Bd5 f6 Bb3 f7 Be7 f8Q Nb7 Qg7 Bf7 Nb3 c1Q Bc2 Bf8 Bb1 Qc4 Nc1 Be8 Qd4 Bc5 Qh6 Rg8 Qc6 Bh5 Qc3 Rg6 Qd2 Ne2 Re1 h1B Rf1 h2 Rf2 Rg8 g6 Ng1 g7 Bg2 Rf1 h1B Re1 Re8 Rf1 Re6 g8Q+ Rg6 Re1 Qc3 Qa2 Qc4 Re2 Bf1 Rh2 Be2 Rh3 Bg2 Rh4+ Kg3 Rf4 Bd1 Rf8 Kg4 Rg8 Kf5 Rd8 Rf6 Kf2 e3+ Kg3 e2 Kh4 e4 Q4c3 Rd6 Qg7 e1Q+ Qf2 Qec3 Qd2 Ke6 Kg5 Qd4 Kh6 Kf5+ Kh7 Qc2 Kg8 Rg6 Kf7 Qcc4+ Ke8 Kg4
7n/bq3nnB/R1r2Qb1/3B3p/pQ4b1/Bqr2bK1/1R1q1PN1/1N1nB1k1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 c4 Kf7 b4 Ke6 g4 Ke5 g5 a5 c5 d5 g6 h5 c6 a3 c7 a4 b5 d3 b6 e3 g7 Ke4 b7 e5 Be2 a2 Rh2 h3 Rh1 h2 Kf1 d2 Kg2 d4 Nf3 d3 Qe1 d1N Rg1 h1B+ Kg3 d2 Ba6 e2 Nh4 Nh6 g8Q Nd7 b8B Nf5+ Kh3 Rh6 Bb7+ Rc6 Qg3 Bc5 Rg2 Ng7 Qb3 Qe7 Rg5 Ba7 Na3 Bf3 Qg1 e1N Qc3 Ng2 Bb2 Nf4+ Kg3 Ng6 Nc4 Nh8 Rb1 a1Q Qa5 Qaa3 Qh1 Qb3 Rg6 Kd3 Ng2 Ke2 Bd4 e4 Qh4 Kf1 Qb4 e3 Qf6 e2 Rb2 e1Q Bc3 Ne5 Na3 Nef7 Nb1 Bf5 c8B Kg1 Bd6 Q1e2 Rh6 Bg6 Bf5 Rac8 Be4 Qc7 Bd5 Qd3 Ba6 Qd4 Bd3 Qb7 Bf5 Ne3 Bf8 d1B Be1 Qd2 Bd3 Bde2 B3e4 Nd1 Bd3 Bf5 Bc5 B5g4 Bh7 Bd3 Qe6 Re8 Qa5 Rd6 Ba3 Rc8 Qb4 Rc3 Qf5 Ra6 Rb6 Bc2 Qf6 Bg6 Re6 Ra5 Rd6 Rac5 Ra6 Rc6
krb1NN2/1b2q1K1/N4BnQ/2q2p2/2B1rnrr/R1n4N/4QpP1/R1b1b3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 h5 Ke5 b5 a4 Kb7 d4 f5 e4 c5 d5 c3 d6 c2 a5 b3 d7 b4 Bc4 b2 Ke6 f3 Kf7 b3 e5 h3 e6 h2 e7 f2 e8Q h4 Ne2 h3 Nbc3 b1N Bb5 c4 Nd5 b2 Qe3 c3 Qe8 Nf6 Bh6 c1B Be3 c2 Nec3 Rh4 Qd4 Nc6 Ne4 Bb4 Bc4 Be1 Ra3 Nc3 Ng5 b1B Nc7 Ne7 Qd2 Ng6 Na6 Nh5 Bd4 Rb8 Qee2 Nhf4 Bf6 Ka8 Kg7 Rg4 Rf1 Qe8 d8N h1R Nde6 h2 Nf8 Ba2 Nh3 Qe7+ Bf7 Bd5 Qde3 Nd3 Qh6 Ndf4 Rg1 Bdb7 Rf1 Bb2 Rg1 c1Q Rf1 Qc5 Bc4 Q1e3 Rg1 Bd2 Rga1 Re1 Nb4 h1R a6 Bbc1 a7 Rd1 Na6 Be1 Ng1 Rhh4 Nh3 Rd4 Qf3 Bd5 Qe2 Kb7 a8N Re4 N8c7 Ka7 Bb5 Bdb7 Ne8 Ka8 Bc4 Qed4 Bd3 Qd8 Bc4 Qde7+
1KB1r3/b1rRnB1N/Q3n1BN/2pq4/Qnp1n1b1/4Rr1b/P3b3/q1B1k3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 f5 e4 b5 g5 h3 g6 b3 d4+ Kb4 g7 h2 d5 b2 d6 f3 d7 f2 Na3 Kc3 Kd5 b1B e5 b4 e6 b3 e7 b2 e8B h4 Ke6 f4 Qd6 f3 Bf4 h3 Ke5 Rh7 Bf7 Bf5 Bg5 b1Q Be7 Nc6+ Kd5 Kd2 Bg2 f1R Nc2 f2 Bh5 Bg4 Bg6 Nd4 Qa6 Ne6 Ne3 Ke1 Ba3 Bc5 Kc6 Bb6 Nf5 Qd1 Nh6 Ne7+ Kb5 c5 g8B Rg7 Bc1 Qd5 B8f7 Qh8 d8Q Rh7 Rb1 Qa1 Qd6 Bd7+ Qc6 Re8 Rb3 Rg7 Ne2 Rh7 Rg1 h1N Nf4 h2 Nh5 Ng3 Bh3 h1N Nf6 Ne4 Re3+ Be2 Bg8 Rf7 Nh7 Rf3 Rg4 Rg1 Rh4 f1B B8f7 Nhf2 Qa4 Nd3 Ka6 Rh1 Kb7 Nb4 Bg4 Bc8+ Kb8 Bh3 Qcb5 Rg1 Qba6 Rgg3 Bg8 Rf7 B4f5 Rg7 B8f7 Rf3 Rg4 Nd2 Rd4 Ne4 Rd2 Nf4 B7e6 Qd6+ Ka8 Ned5 Ng8 Rc7 Kb8 Ne7 Bef7 Qc6 Rd6 Qd5 Nh6 Qd1 Bd7 Qd5 Bb5 Bcg4+ Rd8 Qdd4 Bd7 Qd5 Bc8 Ne6 Rd7 Ba7+
2N3rq/2Q2rN1/2n2bqq/1Pk1NRqr/b1pN1Qp1/3b3n/B1RB2K1/6b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 c3 b4 g3+ Kg2 Kd7 e4 Kc6 h4 f5 d4 g5 h5 a5 e5 f3+ Kh3 a3 h6 c2 h7 g2 e6 g4+ Kh2 f2 e7 f4 e8Q+ Bd7 Nh3 f3 Bb2 c1Q Ra2 a4 Bc3 Bg7 Ng1 Nf6 Qd2 Nh5 Qf7 Nf4 Bc4 f1B Rc2 a2 Na3 Bd3 Nb5 a1Q Ne2 f2 Nd6 a3 Rf1 g1B+ Kg3 Qe8 d5+ Kb6 Bb3 Ba4 b5 Nh3 Kg2 c5 Qh6 a2 Qhf6 Rf8 h8N Nc6 Qf5 Qce3 Ng6 Qac1 Qf3 c4 Qc7+ Kc5 Qg3 Rd8 Nc8 Rg8 d6 a1Q d7 Q8e6 Ba2 Qh6 Ba5 Rdf8 d8N Rf5 Bc3 Qcf4 Bd2 Rh5 Qh2 Qae5 Nd4 Qfg5 Qg3 Qe5f6 Ne5 Qh8 Qf3 Qfh6 Qe3 Qeg6 N8e6+ Kd5 Nf7 Be5 Ng7 Kc5 Qg3 Bd6 Ne5 Be7 Re1 f1R Qe3 Rff8 Rf1 Bf6 Rf5 Rf7 Qf2 Bb3 Qf4 Ba4
nN1N1B2/2rb1RKB/Q4p2/qB1Q2Br/n4b2/1pnq4/Rqq1P1b1/3b3k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Ke6 h4 Ke5 c4 d5 a5 b5 a6 g5 a7 g3+ Kf3 f6 h5 g2 c5 d3 c6 b3 c7 b4 h6 g4+ Kf2 d2 h7 f3 Ke3 b2 Qb3 d1N+ Kd3 d4 Be3 g3 Bg5 f2 Qa2 b3 Qa6 Nd7 Qa3 Nc3 Be3 Bh6 Qa4 Ne7 Nh3 g1Q Nd2 g2 Ng5 Ned5 Ra2 N5b6 Ne6 Bf4 Qa6 Nba4 Ne4 Ndb6 N4c5 Bd7 c8B Kf5 Bb7 Kg4 Be4 Rc8 a8Q Kg3 Qd5 Rc7 Rh5 Qc8 Nd8 Na8 Rg5+ Kh2 Rg7 Kh1 Rf7 b1Q+ Kc4 Bh2 Bg5 d3 Kd4 d2 Bd3 d1B Bb5 Re8 h8B Qb2 Bg7 Rh8 Bf8 Rh5 Kc4 Bf4 Kd4 Bh3 Nd7 Bf5 Nb8 Bd7 Bd3 Qh2 Bh7 Qh4 Kd3 Qh3+ Kd4 Nb1+ Ke4 g1Q Qdc6 Qhc3 Bh3 f1B Qd5 Qb6 Be6 Qa7 Kf5+ Bg2 Kg6 Qd3+ Kg7 Nbc3 Bef5 Qb6 Be4 Qa5 Beg6 Qdc2 Bd3 Qb7 Bc4 Qd3 Bb5 Qc6 Kg8 Qcc4 Kh8 Qdc2 Kg7 Q4d3
q2n4/bQ1rrr2/4p2k/Bb1b2n1/2N2bR1/N1P5/1RR1B1pn/Kq2nR1Q w - - 0 1 illegal: No possible last move, all moves rejected
5q1n/BnBn2q1/B1p1pQ1K/1r2RNQN/Bb3rq1/1b1RP2q/3rk3/3n4 w - - 0 1 illegal: No possible last move, all moves rejected
3Qbn2/1N1nr2r/rPR3N1/2QR1pBk/1n2B1p1/Q1b5/3Qqrq1/1K1n2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g3 e4 g5 c4 a5 Kc2 f5 h4 Kf7 b4 Kg6 e5 d5 e6 g2 e7 f3 c5 f2 b5 g4 b6 d3+ Kb2 a3+ Ka2 d4 c6 d2 c7 a4 Qe1 d1Q Ne2 d3 Nec3 d2 Rh2 g1B Bg2 f1R Nd5 Ra7 Nbc3 Bd7 c8Q Bg7 Ne4 Nf6 Nd6 Nh7 Be4 Nf8 h5+ Kh6 e8Q Bf6 Qe6 Be8 Qe5 Qc7 Qb2 Qcc2 Rh3 Qf3 Qc4 Qg2 Rc3 Rf2 Nf4 d1N Ng6+ Qd2 Qb5 Rf7 Qee2 Nbd7 Rc6 Bc3 Nb7 Qe3 Kb1 a2+ Kc2 a3 Q2b4 Nb2 Q5c5 Kg5 Rb1 a1R Bd2 a2 Rd1 Rh6 Bc1 Rh8 Rd5 Nd1 Qba5 Bd2 Qe1 Qe2 Qa8 Rg7 Qd8+ Re7 h6 Rg8 h7 Rg7 h8Q Rh7 Qhc3 Kh5 Qb2 Bc3+ Bd2 Rb1 Qb3 Rb2+ Kc1 a1N Bg5 Ra2 Kb1 Ra6 Qba3 Nc2 Qd2 Nb4
n1r5/N4kNR/1PNb3p/n7/2n1r2q/q2pn1N1/qQ1bR3/1KbBQbB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 d5 b4 f5 e4 a5 g4 h3 c4 f3 Kc2 f2 e5 h6 c5 a3 c6 a4 g5 f4 c7 d3+ Kc3 h2 b5 f3 e6 d4+ Kd2 a2 e7 a3 b6 Nf6 g6 Ba6 c8N Nc6 g7 Nd5 g8N Kf7 Nf6 Qd6 Nh3 Na5 Rg1 h1Q Rg3 Nc7 Na7 Rc8 Nb5 Na8 Nf4 Qh4 Be2 f1Q Ng8 f2 Re3 Qfh3 Qe1 f1N+ Kd1 Nd2 N1c3 Ndc4 Ne4 d2 Kc2 d1N Nh5 Qb4 Bd2 Qb3+ Kc1 Rh7 Na7 Rg7 Bb4 Rg4 Neg3 Re4 Ng7 Bb5 Bc5 Ba6 Rc3 Nde3 Bd1 Bb5 Rb1 a1B Rb2 a2 Re2 Ba6 Rd3 Bc3 Qd2 a1B Qb2 Bd2+ Kb1 Qd7 Rc3 Qda4 Rc2 Qaa3 Rc1 d3 Bd4 Bb7 Rc3 Nd6 Rc7 Ndc4 Bc5 Nc2 Bg1 N2e3 Nf6 Bc6 Nd5 Bd7 Nb4 Bh3 Rb7 Bf1 e8Q+ Kg8 Qe5 Bd6 Ne8 Kf8 Rh7 Bc1 Ng7 Kf7 Qb5 Qba4 Qd2 Bc3 Qe1 B3d2 Qe5 Q3b3+ Qb2 Qaa3 Nbc6 Qba2+
6B1/Rq1qb3/1P4p1/nnqqRrkr/K1b5/1pN1Nbb1/6Q1/Q1B1RR1n w - - 0 1 illegal: No proof kernel
4QN1n/1qR1BqrB/1p3bQ1/1r2R1b1/3P2b1/3pnQK1/r2knN2/n5Qr w - - 0 1 illegal: No proof kernel
k7/1q3N1q/p2BB2N/1Pb1r1Kb/1r3pnR/n1r2Q1B/Rn1rQ3/q3qB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 b4 d5 c4 Kd7 g4 Kc7 e4 Kb7 e5 h5 b5 f3 c5 f2 e6 d3 Ke3 d4+ Kf4 a3 e7 a2 e8Q d2 g5 h3 g6 h2 g7 a6 Qc2 d1R Qee2 d3 Qe3 h4 Nh3 d2 Ng1 h3 Nf3 Rh5 Qcb3 Nf6 g8B Qa5 Qa3 Ng4 Bd5+ Nc6 Bfc4 f1R Bg8 Nce5 Bce6 Nc4 Qab3 Na3 c6+ Kb8 Qf2 Bc5 Nd4 Qb6 Qff3 Qb7 Qe3 Rfe1 Nc3 Rh4 Qef2 Re5 Ne4 Ra7 c7+ Ka8 Q3e2 Bd7 c8B Be8 Nd6 Bh5 Qg3 Qh7 Kg5 Rc7 Nf7 Rc6 Rf1 h1Q Rf4 h2 Qgf3 Qe1 Bb2 h1Q Bc3 Rh2 Bb4 Rb1 Re4 d1N Bcd7 Ba7 Bd6 Rb4 Bc4 Nb2 Rf4 Nf6 Rh4 f4+ Nf5 Ng4 Bd3 Bc5 Bc4 Re3 N5h6 Re7 Qee4 Re8 Bf1 Rd2 Qee2 Re6 Nd8 Ree4 Bge6 Re3 Ndf7 Ree4 Rc1 a1Q Rc2 Re3 Qff2 Q1e4 Qff3 Rc7 Bc8 Qb7 Bcd7 Rc3 Bc8 Re7 Bcd7 Na4 Ra2 Nb2 Bc8 Ne5 Beh3 Ng4 Bd7 Ree4 Be6 Re5+
r2R4/1nN2B1p/Pbb1QqR1/6Nr/kb1B2B1/2q1bK1Q/q5p1/4qnBr w - - 0 1 illegal: No possible last move
1k1N2BR/2b1B1P1/2q1pRq1/p1n2q1Q/1q2N1N1/2rrr2K/2Q1N1b1/n5bb w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 h5 f4 d5 Kf2 Kd7 Kg2 Kc7 c4 a5 b4 a3 g5 e3 b5 e6 f5 d3 c5 d2 c6 e2 f6 e1Q f7 d4 g6 d3 g7 h3+ Kh2 h4 Bb2 a2 Qc2 d1R Nc3 d2 Qb1 Qg5 Qc2 Qf5 Qb1 Bb7 Bc4 Nh6 Bd5 Na6 b6+ Kb8 Bb3 Nc5 Nce2 Bd6+ Be5 Bc7 Nf3 Rc1 f8N d1Q Bc2 Qb4 Ng5 Qdd3 Ne4 Re1 Ng6 Rd8 Qd1 Rc8 Ng1 Re3 Qh5 Ra7 Rd1 a1B Ne2 Bd4 Rdf1 Ra6 Bd6 Ng4+ Kg1 h2+ Kg2 Ba8 b7 Rb6 Rf3 h3+ Kg3 Rd8 Ne5 Rc8 Be7 Qg6 N4c3 Qdf5 Ne4 Rd3 Kh4 Ne3 Ng4 Rb5 Bb1 Nc2 Rff1 Na1 Rf2 Qe5 Rf6 Bg1 Bc2 Qef5 Bb1 Ka7 b8N Re3 Bc2 Rd8 Bb1 Rdd3 Bc2 Na6 Bb1 Rc5 Bc2 Rcc3 Bb1 Bb6 c7 Nc5 c8Q Bb7 Qc6 Bc7 Qa4 Ba8 Nc6+ Kb7 Nd8+ Kb8 N4g3 Bf3 Qc2 Bf2 Rd1 Bg1 Ne4 h1Q Rd2 h2 Kh3 Rd7 Rd5 Qfg5 Rdf5 Rdd3 Rf8 Qf4 R5f6 Qff5 Rh8 Bf2 Ba2 Qc1 Bd5 h1B Bc6 Bg1 Be8 Bf4 Bf7 Bc7 Qb2 Qc2 Bg8 Qa4 Qd2 Qc6 Qc2 Bfg2+
2B1N1k1/2N2p1r/KnbbB3/2qrn3/1NN2Pq1/3RRp2/Qnr3n1/4bQ1r w - - 0 1 illegal: No extended proof kernel
q1QK1BBq/4p2b/1b3k2/1n2qr2/1N2b1B1/Nn2pQR1/1R2bP2/r2r1B1r w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 b5 c4 d5 a4 h5 g5 d3+ Ke3 h3 Kd4 e3 Kc5 d2 a5 d4 g6+ Kf6 a6 b3 a7 b2 g7 b4 Qf3+ Bf5 Qe2 d1R Qf3 d3 Be2 h4 Qg2 d2 Ra2 b3 Qf3 h2 Nh3 Rh5 Ra5 Nh6 g8B Nc6 Be6 Nd4 Bf1 Nf7 Ra4 Bg7 Na3 b1Q Rb4 b2 Nf4 h3 Nd3 Qh8 Kb6 Nd6 Kc7 Qa1 c5 b1B c6 Nb3 Bg8 Qe5 Rg1 h1R Rg3 h2 Bb2 Bc2 Rb8 Nb5+ Kd8 Rg5 Nb4 Be4 c7 Rh5 Qg4 Bh7 c8Q Rf5 Qf3 Re1 Nc6 d1B Nb4 Be2 Bd4 Ra1 Rb7 Rb8 a8B Rd1 Ra7 Rb6 Rb7 Rc6 Rb8 Rcc1 Bd5 Ra1 Be6 Rg1 Rb7 h1Q Rb8 Rf4 Bg4 Rf5 Rb7 Qg2 Rc7 Rh1 Rc2 B4d3 Rb2 Bc2 Qf4 Qa8 Qf3 Be4 Nd3 Kg6 Nc1 Qc5 Nd3 Bf6 Be5 Kg7 Bf4 Bd4 Bh6+ Kf6 Bf8 Qe5 Nb4 Bb6+
2n2bKb/N1Pr1q2/1q2n3/1bQ1Q3/R3pq1k/1bR5/1n1rR1pB/Rn1N3B w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 e5 c4 b5 a4 g5 f5 d5 h5 g3 h6 g2 h7 d3+ Ke3 g4 a5 Kg5 f6 d4+ Kd2 b3 a6 g3 a7 b4 c5 b2 f7 e3+ Ke1 d2+ Ke2 d3+ Kf3 e2 Ke4 e1B c6 b3 c7 Qd5+ Ke3 e4 Rh2 Ba6 Ra5 Nd7 Ra1 Bb5 Ne2 Rd8 a8R Nc5 Nec3 Ne7 Na3 b1Q Ra4 b2 Qc2 Nc8 Nd1 Ne6 Qc5 g1Q+ Rf2 Kh5 Bg2 Qh2 Re2 Kh4 Bh1 Qc4 Qe5 g2 Qc5 Rg8 Qe5 Rg7 h8R+ Rh7 Rg8 Qb3 Rg3 Q1a2 Rf3 b1N Bb2 Qb4 Bc3 Qa5 Bb4 Rd4 Bd6 Qb6 Rg3 Nc5 Kf4 Ne6+ Kf5 Rd5 Rge3 Qf4+ Kg6 Bf2 Nb2 d1B Rf3 d2 Rc3 Bb3 Nd1 Bg7 f8Q Bd4 Qff5 Bf8 Kf6 Rd7 Kg6 Bg7 Kh7 Bh6+ Kg8 Bf8 Bb4 R5d6 Qc5 Bh8 Qfe5 B5c4 Nb5 Rd4 Nb2 d1N Na7 Rd2 Ba3 Bb5 Bb4 Ne3 Nd1 Nc4 Ba3 R2d4 Bc1 Nb2 Be3 Rd2 Bg1 Bc2 Bh2 Qd5 Qed4 Bb3 Qg7 Qh5 Qge5 Qhf7+
2bn3r/r1p3qq/3kN1R1/3q3p/2qQ2NK/P3NrR1/2bbrQ2/BB2n1N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 d4 f5 g4 b5 e4 h5 g5 c3 e5 b3 e6+ Kd6 g6 h3 d5 f3 Kg3 b4 a3 f2 e7 f4+ Kh4 b2 g7 c2 Bc4 f1Q Ba6 f3 Qd2 f2 Kg3 h2 e8Q b3 Bb7 Qg5+ Kf3 Nh6 g8N Nc6 Nf6 Ra7 Qee1 Qc4 Nc3 b1Q Nd1 f1R+ Qef2 b2 Qd4 Qg7 Ne3 Nd8 Nfg4 Nhf7 Kg3 Ne5 Kh4 Nd3 Bd2 c1R Bc3 Rce1 Ba6 Kd7 d6 Re2 Bb5+ Ke6 d7 Ne1 Ba4 Qbg6 Bc2 Bb4 Bb1 Q6h7 Ra2 Nb7 d8N+ Ke7 Bc2 b1B Ne6 Nd8 Ba1 Bd2 Bf5 Bd3 Rb2 Bc2 Rb6 Bd1 Bb1 Bc2 Nd5+ Kd7 Rb3 Kd6 Rg3 Qf5 Nde3+ Qfd5 Qg2 Rf3 Qf2 Qh7 Nh3 Qg7 Rhg1 h1Q R1g2 Qf1 Ng1 Qh7 Nh6 Qc3 Rg6 Qc4 R2g3 Qg2 Nhg4 Qh2+ Rh3 Qe5 Rg3 Qeg7
nr3k2/2p1r3/1p1n1r1q/1q4b1/NK2Qb2/1NQ1RR2/b2Pb3/N1BN1Bnn w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 h5 a4 f5 g4 h3 a5 c3 g5 h4 e5 c2 a6 f3 a7 h2 g6 h3 g7 b3 e6 f2+ Ke2 f4 e7 b2 Nc3 b1B Ra3 f3+ Ke3 Qd6 Ra2 Nh6 g8N Nf5+ Ke4 Rh7 Ra4 Qh6 Kd5 Nd7 Kc4 Ba2+ Kb4 Nd6 Qe1 Nb6 Qe3 Rb8 a8Q Bg4 Ba6 f1R Ra3 f2 Nd1 Be2 Nf3 Rg7 Rg1 h1N Ne1 h2 Qc3 Ng3 Nf6+ Kf7 e8N h1N Nd5 Be7 Bc4 Bg5 Nef6 Kf8 Ne4 Re7 Nc5 Bf4 Qa4 Na8 Nb3 b6 Rg2 Bg5 Rh2 Bf4 Rh4 Bg5 Re4 Bf4 Re3 Bg5 Bb2 c1B Nc2 Bf4 Nf6 Bg5 Ne4 Bf4 Nec5 Bg5 Ba1 Bb2 Qc6 Bf4 Qe4 Bg5 Na4 Bf4 Qcd3 Bf6 Bb2 B6g5 Qc3 Bg4 Qee5 Ne2 Qe4 Ng1 Nca1 Be2 Rf3 Re1 Bc1 f1Q Be6 Rf7 Bh3 Rf6 Re3 Qf3 Bf1 Qfh5 Qed4 Bg4 Rf3 Re7 Qe4 Qe8 Re3 Be2 Rf3 Kf7 Qcd4 Bb5 Na5 Be2 Rae3 Qc6 N5b3 Kf8 Qc3 Qb5+
1Q2B1b1/1PBBpqQ1/3b1nr1/pn4kN/2n4q/nr1RRK2/5bB1/qq3N2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 f4 Kg6 g4 d5 b4 a5 c4 h5 b5 e3 f5+ Kg5 b6 d3+ Kf3 a3 f6 h3 f7 h4 c5 a2 b7 h2 c6 d4 c7 d2 Na3 e2 Kf2 e1B+ Kf3 h3 Ke2 d3+ Ke3 Na6 Kf3 Nb4 Qc2 Be6 c8B Bg7 f8Q Be5 Ne2 Nf6 Qf7 Bf2 Qh7 Qf8 Qc7 Ra6 Nb1 Nc2 Bd7 Bd6 Qb8 Bg8 Nf4 d1N Bg2 d2 Nh5 Nb2 Re1 h1Q Re3 d1N Nd2 h2 Nf1 Qf7 Bd2 Nc3 Rd1 a1Q Qg7+ Kh4 g5 Na3 g6 Ncb5 Bb4 Nbc4 Rdd3 Kg5 Bc5 Qg1 Bb6 h1Q Bc7 Rh6 Qh8 Qhh2 g7 Qh4 Be8 Rb6 Bd7 Bh7 g8B Rg6 Qg7 Qgh1 Nfg3 Qhb1 Nf1 Nc3 Be8 Rb3 Bd7 Ncb5 Be8 Qf8 Be6 Bg8 B6d7 Qf7
r3N1R1/1pq1b1p1/k1r3qr/3b4/1n3nNB/NBN3QK/qqb3P1/1R1Q2b1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 h4 fxe4 b5 Qc7 b6 Qh2 h5 axb6 h6 b5 Bc4 b4 Bd3 Qxh6 Bf1 Qh2 c4 Kd8 f4 Kc7 Kf2 Kb6 a4 e5 a5+ Ka6 c5+ d3 c6 h5 f5 d5 c7 d4 f6 e3+ Kf3 b3 f7 h4 Qc2 b2 Qf2 e2 Na3 e1R Bg5 b1Q Qe3 e4+ Kf2 h3 Qc1 e3+ Kf3 e2 Ra2 d2 Be3 d1B Qb2 d3 Qd2 Nc6 Bf2 Nf6 Bh4 Be6 c8Q Qb2 Qc7 Bc2 Qg3 Be7 f8N Nb4 Ng6 Nh5 Ne5 Nf4 Ng4 Rc1 Qd1 e1B Ne2 Rh6 Nc3 Bf2 Ra1 Bg1 Rb1 Bc4 Be2 d2 Bf1 Ka7 a6 Be6 Bc4 Bd5+ Ne4 Kb6 a7 Ka5 Bb3 Ka6 Ne5 Qa2 Kg4 Qb2 Nc3 Qa2 Qde1 d1Q+ Qe2+ Qd3 Qd1 Rf8 a8N Qh7 Nb6 Ra8 Nbc4 Qd3 Nd6 Qd4 Ne2 Qdb2 Ne8 Bce4 Nd7 Rcc6 Ndf6 Bc2 Nc3 Nh5 Qgf3 Qc7 Qg3 h2 Kh3 Bd4 Rf1 Bg1 Ng4 h1Q+ Qh2 Rcd6 Rf8 Rc6 Rg8 Nf4+ Kg3 Bb6 Qh3 Qe1+ Kh2 Qe4 Qe3 Qg6 Qg3 Ne6 Kh3 Bbc5 Rh8 Bg1 Rg8 Nf4+
q1qR2KR/1pQPR2q/pN1rnq1B/n1r1b1N1/Rr3b2/6Q1/4kb2/1B5b w - - 0 1 illegal: No proof kernel
n1kb1q1Q/pq2b1KN/2Nrr1Q1/2r1N1N1/4n3/1qBb4/1p2qPR1/1B2R2b w - - 0 1 illegal: No proof kernel
1NN5/p4qkn/1R2q2r/3qnBpK/2Q3Pb/1QnbR3/Bn1rqbB1/1B6 w - - 0 1 illegal: Other
3Nq1b1/2kN1Rb1/1r3b2/Bnn1nK1P/1r1r2p1/1RBQrb2/2pB1Q2/3B2n1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 e5 f4 c5 a4 b5 d4 g5 h4 b3 d5 c3 a5 c2 d6 c4 f5 b4 f6 g3 f7 g4 h5 b2 a6 c3 a7 b3 Qe1 g2 Nf3 g1N Qh4 Bg7 f8B Nh6 Nh2 Nf5+ Kf2 e3+ Kg2 e4 Qf2 e2 Na3 b1R Be3 c1N Bh6 e1R Bd3 e3 Nc2 e2 Ra3 b2 Bd2 Na6 Nf3 Bb7 Nb4 c2 Rb3 Nc5 Nc6 Rb8 a8Q Nd4 Kg3 Nb5 Kf4 Qe8 Nd8 Rg8 Be4 N1d3+ Kf5 Ne5 Qa3 Kc8 d7+ Kc7 Bd5 Bc6 Be7 Rb6 Bf6 Red1 Bc4 e1B Be2 Rf8 Rh2 Rf7 Rh1 Re7 Rh3 Nf7 Rh1 Re3 Bfc3 Ba8 Ne5 Bf3 Qa4 Bf6 Qc4 Bg7 Qd3 Bf6 Nec6 Ne5 Nb8 Bg7 Qh2 Bh4 Qf2 Bhf6 Rh2 Re1 Bd1 Re4 Rg2 Rd4 Rg3 Bh1 Rf3 Re3 Rf4 Bf3 Re4 Ng6 Re7 Ne5 Rf7 Ra1 Qe4 b1B Qd3 Ra5 Ndc6 Ba2 d8B+ Kd6 Nd7 Ra4 Bb2 Rb4 Bbc3 Rb7 Ba5 Rb6 Nd8 Kc7 Rb1 Bc4 Rb3 Bcd5 Rf8 Bg8 Rf7 Bh6 Bc1 Bf8 B1d2 B8g7
rBB2Nn1/5bnp/n1p1r3/PRK4B/k1nr3R/2r1bQ1q/4b3/B1QbN3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ne7 d4 Kd7 a4 Kc6 g4 f5 e4 b5 a5 c3 g5 c2 e5 f3 Ke3 f2 e6 f4+ Ke4 b3 g6 b4 g7 f3 g8B b2 Bd3 f1N Bh6 c1R Bf7 b3 Qe1 h3 Be3 h2 Ne2 f2 Bg5 Ng3+ Ke5 f1B Bf5 Kb5 d5 c6 Kd4 Nh5 d6 Ng7 d7 Rc3 Na3+ Ka4 Rb1 Na6 Nc2 Qc7 Bh3 Qg3 Bf4 Qf3 Bb8 Qh5 Rd1 b1B Nf4 b2 Ng6 Ba2 Rb1 Bd3 Qf2 Bb3 Ne1 Bd1 Qf3 Bb5 Rg1 h1R Rg4 Bbe2 Re4 Qf5 Be8 Rg1 Rh4 Rg5 Bf7 Rh5 Bg4 Rh6 Bh5 Qh3 d8B Rb3 Bg4 Bd7 Bdc7 Be8 Be5 Ra3 Nf4 Re3 Bfh5 Bf7 Ng6 Ra3 Rc1 b1N Rc5 Nd2 Rb5 Nc4 Bf6 Nc8 e7 Re3 e8Q Ne7 Bc8 Ra3 Ke4 Rd3 Ba1 Rc3 Ne5 Rg6 Kd4 Rh6 Qd8 Re6 Nd7 Ng8 Ne5 Nh6 Qg5 Ba3 Qgf4 Bc1 Nd7 Rd8 Q4e3 Ng8 Qg5 Nb4 Kc5 Bd2 Nf8 Rd4 Qg6 Bc1 Qb1 Be3 Qc1 Na6+
R2N1rq1/1KBP4/1RQR2N1/1brq3n/nqR3pQ/p2Bb1p1/3k3n/2b3r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 h4 Kd6 e4 Ke5 b4 Kd4 d3 a5 e5 c5 e6 f5 b5 g5 b6 a3 h5 a2 b7 f3 e7 g3+ Ke1 a4 Kd2 a3 e8Q c3+ Kc2 f4 Kb3 c2 h6 g4 h7 f2 Be2 f1Q Nd2 f3 Nh3 f2 Ng5 Qd5+ Nc4 Nf6 Bf4 c1B Bc7 Nbd7 b8R Ba6 Ka4 Kc3 Ka5 Bh6 d4 Qe1 Ne6 f1N Bd3 Bhe3 Ne5 Nh5 Rb6 Nh2 Nd8 Rc8 Ng6 Rf8 h8R Bb5 Qf3 c4 Qf6 Kd2 Qh4 Qg8 d5 c3 d6 Nc5 Qc6 c2 d7 Na4 Rb1 a1R Rb4 Qd1 Rc4 Qf3 Rf1 Qfd5 Rf6 Rb1 Rd6 Ra1 Bb8 Rc7 Qb7 Rc5 Qc6 Bb2 Bc7 c1Q Rb8 Qe1 Rb7 Nc3 Kb6 Bc1 Ka7 Na4 Rb6 Qd1 Ka8 Qb3 Kb7 Qb4 Ne7 Qgf7 Bf5 Re8 Ne6 Bb2 Bd3 Rg1 Ng6 Bc1 Rg8 Re7 Rb8 Qg8 Ra8 Rf7 Nd8 Rf8
n2k4/3rbb1p/4Q3/1B1q1K1n/2bR1Nnp/2Qbr2Q/QN2p1Pr/3RB1b1 w - - 0 1 illegal: No possible last move
kn2b3/2p1rp2/1nP2nB1/1qb1b2N/2Rnp1QB/2R5/N1K1Qr1n/2QQ2r1 w - - 0 1 legal: proof: f4 h5 e4 a5 g4 hxg4 b4 axb4 e5 d6 Ne2 dxe5 Ng1 exf4 Bh3 f3 Bg2 Qd5 Bf1 Qd8 h4 Kd7 d4 Kc6 Kd2 g5 a4 b5 c4 Kb7 c5 e5 h5 e4 a5 f2 d5 g3 h6 g4 d6 b3 d7 b4 h7 b2 Bh3 f1N+ Kc2 b3+ Kc3 g2 Bg5 g3 Qg4 Nh2 Kd2 Nf6 Ne2 g1B Ra4 g2 Nf4 Bd4 Nc3 b1R Na2 g1N Bh4 b2 Kc2 Ngf3 Rc4 Be5 Nh5 Qe8 d8Q Rg1 Qd1 b1N a6+ Ka7 Qc1 Qb5 c6 Nbd2 Qd1 Rg8 h8Q Bc5 Qh6 Bd7 Rc3 Nc4 Qhc1 Re8 Qe2 Kb6 a7 Re7 Qcd1 Be8 Qc1 Nbd7 Qcd1 Rd8 a8Q Nb8 Qa3 Rdd7 Qb2 Ka7 Qbc1 Nb6 Rc4 Ka8 Rc3 Re1 Rg1 Rf1 Rg3 Rf2 Rc4 Ng5 Rgc3 Ngf3 Qgg1 Rd3 Bf5 Re3 Qg4 Nd4+ Kd2 Rg3 Bg6 Ndf3+ Kc2 Rgg2 Qd4 Rg1 Qdd1 Nd4+
q1nq2B1/1NbQ2BQ/k2q2R1/3q2Rb/r4r2/pQ5K/3P1p1p/b1qnQN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 b4 Kc6 e4 Kb7 g4 c5 Kg2 a5 g5 h5 b5 f5 b6 f3+ Kh3 c3 e5 c4 e6 f4 g6 a3 g7 f2 Ra2 c2 Rh2 f3 Bg2 f1Q Qe1 c3 Qd1 a4 Bb2 c1Q Qc2 Nh6 g8Q Qc4 Qd3 c2 Bf1 f2 Qf7+ Ka6 b7 Nc6 b8Q Bd6 Rh1 Bc7 Qg7 Nf5 e7 Na7 e8Q Rf8 Qdg3 Ne3+ Q7g4 Rf4 Nf3 Nd1 Rg1 Qd6 Ra1 a2 Qe1 a3 Nc3 Qcd3 Nb5 Q3d5 Rb1 a1B Qd7 Bb7 Qgg7 Nc8 Bf6 Qb2 Rg4 c1Q Rg6 Qbd4 Qh7 Bc6 Bg7 Q4f6 Rg5 Qd8 Bc4 Ra7 Qdf5 Be8 Qd7 Qa8 Bg8 Bg6 Kh2 h3 Kg3 h2 Kh3 h1Q+ Nh2 Qhb7 Nf1 h4 Rb3 Qbc6 Rbg3 Bh5 Rg2 Qdd5 Nd6 Q6c5 Nb7 Qcd6 Kh2 h3 Rg6 Kb6 R2g5 Raa4 Kg3 h2 Kh3 Rad4 Nc5+ Ka5 Qb3 Ra4 Nb7+ Ka6
B2nq1q1/4nbR1/4nK2/NQ1R1p2/2pQ2p1/r1Bnb1Qq/r1k1PQ1N/2n5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kc6 a4 Kd5 d4 g5 h5 f5 a5 c5 h6 b5 h7 g3+ Kf3 g2 a6 b3 a7 b4 Qc2 b2 Nh3 g1Q Ra4 b3 Ra2 c3 Ra1 Kc4 d5 Ne7 d6 Qe8 d7 Bh6 d8Q Be6 Qd7 Nbc6 Bd2 Bf7 Be3 Nd8 Qcd2 c2 Nf2 c1N Ra5 Nd3 Qe1 Rg8 Nd2+ Kc3 h8Q+ Kc2 Nc4 b1N Qd5 b2 Bd4 Nc3 Ng4 b1N Nh2 Ne4 Qf2 Nbc3 Bg2 Na2 Bc3 Nac1 Qhd4 Rg6 Rb5 Ra6 Na5 c4 Qb7 Nec5 Qb6 Nd7 Rd5 Nf8 Qb5 Nfe6 Qg3 Rc8 a8Q Rcc6 Nb3 Ra3 Qaa7 Rca6 Qdf2 Ra2 Qad4 R6a3 Na5 Bg7 Qde3 Bd4 Qe4 Be3 Qd4 Qf1 Rg1 Qd1 Bh1 Qe1 Kg2 f3+ Kh3 Qd2 Rd1 g4+ Kh4 Nef4 Kg5 Nfe6+ Kf6 Qg8 Qe1 f2 Bf3 f1Q Qef2 Qh3 Rd7 Qe1 Ba8 Qh1 Rb7 Qc6 Rc7 Qce8 Rd7 Nc8 Rc7 Bh5 Rg7 Ne7 Qde5 Nb2 Rd5 Nbd3 Qd4 Bf7
kq4r1/1r2bqBn/1Q2br1R/2q1P2B/1rr5/Kp1N2R1/np2N1pQ/1N1N4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 Kc6 a4 g5 c4 b5 Kc2 Kb7 Kb2 f5 h5 f3 h6 b3 c5 f2 e5 d3 h7 d4 a5 b4 Na3 f4 Nb5 f3 Nh3 g3 Bd2 g4 Bf4 d2 Qe1 d1R Qc3 g2 Ng1 g3 Rh6 d3 Ra3 d2 Be2 f1Q Qd4 f2 Bh5 Nc6 Nc3 Rb8 a6+ Ka8 a7 Rc1 Nb1 d1R Ne2 g1Q Bg5 g2 Bf6 Qe8 Bg7 Rc4 Qd8 Nf6 Qb6 Rg8 h8N Rb7 Ng6 Bh3 Ngf4 Rdd4 Nd3 Be7 Bf8 Be6 Bg7 Nd8 c6 Nh7 c7 Nc6 c8N Rf4 Nd6 Qb8 Ne4 Rf6 Ka1 b2+ Ka2 Rf4 N4c3 Rh4 Ra5 Rhe4 Rc5 b3+ Ka3 Nb4 Nd1 Rf4 Rc6 Na2+ Rd6 Rh4 Rg6 Rb4 Rg3 Rhc4 Rc6 Qe1 Rd6 f1R Rc6 Qef2 Rd6 Bd5 Rh6 Be6 Qd4 Qf7 Qh4 Qc5 Qh1 Rd7 Qh2 Kb7 a8Q+ Kc8 Bg6 Rf6 Qa5 Kb7 Qb6+ Ka8 Bh5 Rb7
n2k3r/KQN1r1bQ/3N4/1p3n1n/1nNn3q/r2p2PB/2bBR2p/1N1q1R2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 e4 f5 c4 d5 a4 h5 e5 d3 g3 h3 e6 d4 a5 d2 e7 h2 c5 h4 c6 b3 a6 h3 c7 b2 a7 f3 Bd3 f4 Nc3 b1R Qb3 d1Q Bc4 Bg7 Qa2 Nc6 Qb3 Bf5 c8Q Bc2 Bb2 Nf6 Qc7 Nh5 Ra2 Ra1 Qa4 Rb8 a8N Rb7 Qb6 Kd7 e8N Qh4 Nac7 Kd8 Bc1 Ra7 Rb2 Ra3 Nd6 Rb7 Nge2 Ra7 Rf1 h1N+ Kg1 Nf2 Nce4 Rb7 Be6 Nd3 Nc4 Ndb4 Kf2 h2 N2c3 d3 Nb1 Nd4 Bd2 Ra7 Ned6 Rb7 Re1 Ra7 Bh3 Rb7 Kf1 f2 Kg2 f1N Kf2 f3 Qaa7 Ne3 Rf1 Nef5 Qc6 Ne7 Ke3 f2 Qe4 Nc8 Qh7 Nb6 Qa6 Ra7 Qb7 Na8 Ra2 Nbc6 Rb2 Qg5+ Ke4 Qh4+ Kd5 Nb4+ Kc5 R7a4 Rh1 f1N Rg1 Ne3 Rf1 Ra5 Qf3 Ndf5 Bc3 Ba4 Nce8 Nh6 Re2 Ra7 Bd2 Re7 Qb7 Nec2 Nc7 Nd4 Nd5 Nc7 Kb6 Nhf5 Ka7 Na8 Nc7 Bc2+
b6R/Nk1nQ3/R4p2/B3NK2/pqQP2p1/Qb1b3B/3b1b2/rq1nqrQ1 w - - 0 1 illegal: No possible last move, all moves rejected
b2nr2K/3B1qQQ/3kp1Bq/3Pn1R1/2B1qBpn/pR1nNn2/1N1r1b2/8 w - - 0 1 illegal: No proof kernel
q1k1B3/Qq1bb3/2np1Br1/p2QpPqq/2B2R2/1rBr4/3q2NK/3nRN2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 h5 Kf2 e5 c4 d6 g4 Kd7 Kg2 d3 b4 a3 g5 h3+ Kh2 d2 c5 h4 b5 a2 g6 e3 g7 e2 f5 e1Q b6 Qg5 b7 Nh6 g8B Be7 Bfc4 Nc6 Bb2 Rb8 Bgf7 Rg8 Bc3 Rg6 Nf3 a5 Qb3 d1R Rf1 Rd3 Be8+ Kc7 Qd1 Bd7 Nbd2 Qe4 Rb1 a1Q Ne1 Qa2 Ng2 Qeg4 Rc1 Q4h5 Rf4 Kd8 Nf1 Qd2 Qb3 Kc7 Re1 Ng4+ Kh1 Ne3 Kh2 Nd1 Qb5 Ra8 b8B+ Kc8 Bc7 Rb8 Bd8 Rb7 Qb6 Rb8 Qa7 Rb3 Kh1 Nd4 c6 h2 c7 Nc6 Qc5 Rb8 Qd4 Rb3 Qa7 Nb4 Ree4 Bf8 Bf6 Be7 Re2 Rg3 Ne1 Rd3 Qf2 Kb7 Rg4 Qb2 Re3 Qd2 Kg2 h3+ Kg3 h1Q c8Q+ Kb6 Qc5+ Kb7 Qg2+ Kb8 Qa7+ Kc8 Qe4 h2 Qed4 Qa8 Qe4 h1Q Qed4 Qhb7 Ng2 Qh1 Qd5 Rd4 Re4 Nc6 Re1 Qg1 Kh3 Qgf2 Kh2 Qfe2 Re4 Rd3 Rf4 Qeh5+
3K3k/Q1n1R1bq/3pp1n1/PB1bq3/r1N2n1r/Qp1BN1B1/1B4b1/1b1R1b2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Kg7 g4 h5 c4 b5 a4 e6 g5 d3+ Ke3 d2 Kd4 h3 Ke5 h2 g6 e3 f5 h4 c5 e2 c6 e1Q+ Ne2 h3 c7 b3 Bb2 b4 Na3 Qdh4 Qc1 d1N Nc4 Ne3 Nc3 Bb7 c8B Qh7 Nd1 Ng2+ Nde3 Ne7 Bd3 Bd5 Ba6 Nf4 Bb5 Na6 Kd6+ Qc3 Qg1 Nc7 f6+ Kg8 Rb1 Bg7 Rd1 Bg2 Qf2 Bf1 Rg1 h1B f7+ Kf8 Qf3 h2 Qb7 Qe1 Qa7 Bd5 Rg4 h1B a5 Rc8 Rg3 Bhg2 Rg5 Bd4 Rg4 Kg7 f8B+ Kg8 g7 Neg6 Be7 Rf8 Bh4 Rd8 Ba3 b2 Bg3 b1B Bb2 b3 Rg5 Rc8 Rf5 Rb8 Rf7 Rb7 Re7 Rb8 Ba6 Rb4 Bb5 Ra4 Re8+ Nf8 Ke7 d6 Kd8 Bf6+ Re7 N8g6 Qc5 Qc3 Qb4 Qe5 Qa3 Qh3 Nf5 Rh4 Nfe3 Kh7 g8Q+ Kh6 Qf7 Bg7 Qe8 Kh7 Qc6 Kg8 Qcc5 Kh8 Qa7 Qhf5 Q7c5 Qh5 Qa7 Qh7
1RnR2n1/b7/nNp1r1rk/1n2q1q1/RKB2QR1/1BQ3p1/b1rn2Pp/2N5 w - - 0 1 illegal: No proof kernel
r1nq1RN1/5r2/1p4B1/1q1n1NBb/QqpRRbr1/2k1P1q1/4RKp1/3q3Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 d4 Kd7 a4 Ke6 h4 Kd5 a5 f5 a6 g5 h5 c5 e3 g3 h6 g2 h7 f3 a7 g4 Ba3 g3 Bc1 f4 Ba3 f2+ Ke2 b3 Qd2 b2 Qc3 f3+ Kd1 b6 Qb3 Nc6 Rh2 Bh6 Qa4 c3 Bd3 Nce7 Bg6 Bf4 Nd2 Nf6 Ne4 Rg8 h8R Bg4 Ne2 c2+ Kd2 Rg7 Rf8 f1Q Re1 c1R Rh4 g1Q Bb4 Kc4 d5 b1Q d6 f2 d7 Bf3 Nd4 Rf7 Nf5 Nc8 Re2 Nd5 Nf6 Bh5 Ng8 Qh3 Rg4 f1Q Bc3+ Qb4 Rh4 Qe8 d8R Qb5 Rg4 Qh4 Rde8 Qd8 Re5 Rb8 a8Q Qgg2 Qc6 Ra8 Re7 Qff3 Re6 Rc2+ Ke1 Kd3 Ree8 c4 Re4 Rd2 Rh4 Qh2 Bf6 g2 Bg5 Kc3 Rd4 Qg4 Kf2 Qh1 Re4 Rd4 Qd7 Qhb1 Qd1 Qh3 Qh1 Qd1 Qa7 Qh2 Qa4 Bb8 Ree8 Rg4 Re4 Bf4 Ra2 Rg3 Re7 Be5 Rd4 Rg4 Re2 Bf4 Ree4 Qg3+
rr2Rrq1/1QqB4/pr3B1R/2b2b2/1R2Nn1n/q2Q1Kp1/NR1P2p1/r6k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 h4 Ke6 b4 Kd5 e3 Ke4 b5 g5 h5 f5 b6 c5 b7 c3 h6 c4 h7 f3 Rh4 c2 Bg2 a6 Ba3 c1Q Qf1 f4 Bb2 c3 Rh3 a3 Rh5 a2 Qe1 c2 Bh3 g3+ Kf1 f2 Kg2 f1R Qe2 f3+ Kh1 g4 Rh4 f2 Kg2 Ne7 Nf3 Nd5 Bf6 Nc6 b8Q Nce7 Qb7 Bf5 Qeb5 Rg8 h8R Qa3 R8h6 c1Q Qb3 Qcc7 Nc3+ Kd3 e4 Ng6 e5 Rb1 e6 f1R Ng5 Bc5 e7 Qdb8 Nce4+ Ke2 e8R Rf8 Qc2 Rb6 Rb1 a1R Rb2 Rfb1 Qd3+ Ke1 Be7 Qbd8 Nc3 Ndf4+ Kh1 Qd5+ Nge4 Qg8 Na2 g2+ Kh2 Qab3 Kg3 Qa3 Qe3+ Kf1 Qd3+ Kg1 Bd8 Kh1 Bf6 Bd6 Kf2 g3+ Kf3 Nh5 Rf4 Bc5 Bh4 Bd7 Bf5 Bc8 Rg4 Nhf4 Bd7 Rg1 Bb5 Bf5 Bd7 Rgb1 Ng5 Nh3 Rgb4 Nhf4 Ne4 Qf7 Qc6 Be7 Rb5 Rb7 R2b3 Rbb8 Qb7 Bc5 Rb6 Qg8 R6b5 Rc1 Rb6 Rc4 Rb2 Rd4 R6b3 Rd6 Rb4 Rb6 Bf6+ Nh4+
r1N2Q2/nQBR1P1B/1r3q2/1kbb3R/2pp2N1/n1b2B1B/Kr2r1p1/1r2q3 w - - 0 1 illegal: No possible last move, all moves rejected
1N2rQn1/1bN2P2/K3p2N/n5N1/q3qb2/q4ppB/1qkBn1R1/Rr1q3Q w - - 0 1 illegal: No proof kernel
q4B1R/2p3N1/k2r2p1/p2Bb3/rbqbr3/R1Qb1nK1/1QP2nR1/R2N2b1 w - - 0 1 legal: proof: f4 h5 e4 b5 a4 bxa4 g4 hxg4 e5 d6 Ba6 dxe5 Be2 exf4 Bf1 f3 Kf2 Kd7 h4 Kc6 b4 Kb6 d4 f5 b5 e5 h5 e4 d5 f4 h6 a3 d6 a2 h7 g3+ Ke1 g2 Kf2 e3+ Ke1 e2 Kf2 g6 d7 Bc5+ Be3 Bd4 Rh3 Ba6 Qd3 Nf6 Qc4 Ne4+ Ke1 Nf2 Qb3 Re8 h8R Nc6 Nc3 Re4 Nd1 Ne5 Qc3 Kb7 b6 Bd3 Rg3 Ka6 Nh3 g1B b7 Qf8 d8R Qa3 Rb1 a1B Bg2 Bb2 Rde8 Rd8 b8Q Rd6 Ng5 Qa2 Nh7 Qd5 Nf6 Qa8 Nh5 Ba1 Kd2 e1B+ Kc1 Nfg4 Rh7 Bb6 Bc5 Ra4 Qc4+ Ka5 Qc8 Be4 Rg8 f2 Bh1 f1Q Qe8 f3 Ng7 f2 Qb8 Rd5 Bf8 Rd6 Rgh8 a6 Qd4 Qc4 Rh2 f1R Ra3 Bd3 Bd5 Rf4 Rg2 Nf3 Qe5 Bac3 Rba1 Re4 Qb7 Bbc5 Qb2 Bg3 Qf6 B3b4 Qfd4 Be5 Qdc3 Nh4 Kd2 Bcd4 Re2 Kb5 Ke1 a5 Kf1 Nf3 Kg2 Ka6 Kh3 Bf6 Rg2 Nf2+ Kg3 Bfe5+
q1Qq4/pnRBb2k/q1r3Rp/RKN5/5P2/qnq3p1/RBr4Q/1b4bN w - - 0 1 illegal: No possible last move
1N2b1BQ/2R4N/1b4rb/Pbn3B1/3bR1n1/1p4r1/pq1K1bpN/kbQ3N1 w - - 0 1 illegal: No proof kernel
1q5b/1Q1b1nN1/1B1R2R1/2K1k1n1/1b1Np1qP/pNn4p/3r3n/1r1QrB1N w - - 0 1 illegal: No proof kernel
2r2N1b/3rRqqb/1n1q1N1K/1n3N1p/R4QQ1/1P1bNq2/1p2n1p1/4k1BB w - - 0 1 illegal: No proof kernel
2QB2bq/4RBK1/1q3r2/r1n1q1kp/1Qp2R2/2N1q1r1/p2PRN1b/3n2nR w - - 0 1 illegal: No possible last move
4Q1n1/b2R1rk1/1qNrnn2/1Q2p2B/2bB1qpr/1RR2rNR/PK1p4/5q2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 b5 c4 g5 Kc2 e5 f4 d5 h5 g3 c5 b3+ Kb2 d3 c6 d4 c7 b4 f5 e3 f6 d2 h6 e2 h7 e1Q Nf3 g2 Qe2 d1R Nc3 g1N Qd2 g4 Ne4 d3 Nc5 Qe4 Rh5 Ra3 Na4 Nd7 Rh3 Ne2 Nc5 Nd4 Qe2 Qf4 Be3 Ba6 c8R Ne6 Rb1 Qb6 Bd4 Bc4 Ne4 Bc5 Ng3 d2 Bg2 Rf1 Rc7 Kf8 f7 Ndf6 Rd7 Kg7 Rc1 Ra7 Rc3 Rc7 Qd3 Rf2 Bf1 Rc6 Qb1 Rd6 Bd3 Rf1 Bg6 Rf2 Be3 Rf1 Nd4 Rf3 Nc6 Bd4 Qd3 Bc5 Kb1 b2 Bh5 Bd4 Kc2 b1R Qf1 Ra1 Kb2 b3 Qe2 Raf1 f8R+ Kh6 Rb8 R1f2 Ka3 b2 Qf1 b1Q Qd3 Ba6 Qb5 Qf1 Kb2 Bc5 Qb3 Bc4 Bd4 Qc7 Qa4 Ba7 Rbb3 Qb6 Qa6 Ne7 Qb7 Kg7 Qb8 Rf8 Qb7 Rf7 Qa6 Neg8 Qb5 Rh2 h8Q+ Kf8 Qh7 Rh1 Qb1 Kg7 Qf5 Nc5 Qe6 Rh2 Qe7 Ne6 Qe8 Rg2 Rh1 Re2 Ne4 Rh2 Ng3 Rh4 Rh2 Qd3 Rh3 Qf1
2nN1qrk/1n3b1r/bK2QP2/1pB1qpNr/5N2/2R5/n1pQBN2/3rR1b1 w - - 0 1 illegal: No proof kernel
qQQ1B2N/K1bBRr1b/1r2qp1N/p4Qn1/2k3n1/Pb3q2/Q2p3q/n3R3 w - - 0 1 legal: proof: f4 b5 g4 e5 c4 bxc4 d4 exd4 f5 h6 Bg5 g6 Be7 gxf5 g5 f4 g6 Bg7 Bh4 Bf8 Bg5 hxg5 Kf2 Ke7 b4 Kd6 e4 a5 h4 c5 g7 f3 h5 c3 a3 d3 Ke3 f2 b5 d2 e5+ Kd5 h6 c2 b6 c1Q e6 c4 b7 f6 e7 c3 e8Q c2 h7 g4 Nf3 g3 Qe1 d1B+ Kd3 g2 Q1e3 g1Q Rh6 Ra6 Be2 f1Q Qd2 Qh2 Nd4 Rb6 Qg6 Bd6 Nf5 Na6 b8Q Nc7 Nc3+ Kc5 Rh3 Nh6 g8B Ng4 Nb5 Ne6 Re3 Ng5 Bf7 Bc7 Re7 d5 Nh6 d4 Nd6 Rf8 Be8 Rf7 h8Q Qff2 Qe4 Bf5 Bf1 Bg6 Bh3 Bh7 Rb1 Qfg2 Qf5+ Qd5 Qe2 Qcf4 Qg8 Qd7 Qe6 Qc6 Qec8 Qa8 Rc1 Rf8 Ndf7 Qf3+ Re3 Qde5 Nh8 Rf7 Ra1 Kd6 Kc4 c1N Re1 d3 Ra2 Nb3 Rae2 d2 Re4 Qeg3 Re7 Na1 Kd4 Qe5+ Kc4 Qee2+ Kd4 Rf8 Qb3 Rf7 Qa2 Qee3+ Kc4 Rc6+ Kb5 Bb3 Qfb1 Kd5 Qg6 Ne5 Bhd7 Ng4 Qf5+ Kd4 Qab1 Qe6 Qa2 Rc1 Ng8 Rb1 Nh6 Bd6 Kb6 Bf4+ Bc6 Kc4 Bd7 Bg3 Be8 Bd6 Bcd7+ Qac6+ Ka7 Bc7 Qb2 Bd1 Qbe5 Rb6 Qb2 Bb3 Qa2 Qa8+
B1q2Nn1/R1nN3q/2pK2BR/n1rpQ1p1/6rP/k1B4Q/2B3br/1nb3b1 w - - 0 1 illegal: No proof kernel
1b3q1r/3qn1b1/1pb1k3/nR1p3p/2NR1Q2/1q2BBKR/n1N1P3/Qr3b1R w - - 0 1 illegal: No proof kernel
b1k1b3/2n1n3/p1Qq4/Rrb2pN1/RQ1B1rnN/1pPB4/7N/nKNr3q w - - 0 1 illegal: No proof kernel
2kB4/bR1qB2p/1r1Q2Nr/2nK1p1p/R1nrN1n1/3b2qP/q2N3n/Q3N3 w - - 0 1 illegal: No possible last move
1R1b1bqq/3r2pk/3NN3/1n3r1b/1nrR1Bn1/1pQ2Rp1/P2R4/1Q2KB1r w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 Kf7 c4 Kg6 h4 b5 c5 d5 h5+ Kh7 f5 e5 h6 d3 f6 b3 f7 d2+ Kf2 b2 c6 e3+ Ke2 g3 c7 e4 Nc3 b1R Bb2 b4 Rh3 d4 Qb3 d1R Bg2 Nc6 Qa3 b3 Nd5 Rbc1 Qa6 Nf6 Qb5 Ng4 Qd3 Ra5 Rh2 Rc4 Nh3 Nb4 Ne7 Rf5 Nf4 Bd7 c8R Be8 Qc3 Rh1 Bf1 d3+ Kd1 d2 Bc1 Qd5 Ke2 d1N Ke1 e2 Rb8 Qe6 Nc8 Qd5 Qc2 Nc3 Nd6 Nb5 Qb1 Rg8 Ne6 Qa8 Kd2 e1B+ Ke2 Bc3 Bf4 Bf6 Ke1 e3 Rd2 e2 Rd4 Bd8 Rd2 Bfe7 f8R Bh5 Rf7 Re8 Rf6 Bf8 Rf7 Kg6 h7 Re7 h8Q Rd7 Qg8 Bfe7 Qe8 Bf8 Qe7 Kh7 Qf6 Qd5 Qc3 Qa8 Qbc2 Qd5 Rad1 Qa8 Rd4 Qd5 R1d2 Qa8 Nc7 Qd5 Qb1 Qe6 Re7 Qg8 Re3 Qh8 Ne6 Qg8 Rd1 Qh8 Rf3 Qg8 Kd2 e1Q+ Kc1 Qf7 Nc7 Qee8 Kd2 Bfe7 Ke1 Qh8 Ne6 Qfg8 R1d2 Bf8
2Bnr1qq/4p2k/Q1Q5/qppqRN2/B2Br3/3n1N2/R1P1bb1n/3K1bB1 w - - 0 1 illegal: No possible last move
1b1r1q1r/r1NP1N1B/4q1b1/pnQ3B1/2p1Q3/2p1KR2/kb1NNn2/2nn1R2 w - - 0 1 illegal: No possible last move, all moves rejected
NR2B1Q1/2Qpn2b/2P1n2B/1Q1N4/2r1R1r1/Q1p2r1k/q1q1pbr1/q3n2K w - - 0 1 illegal: No proof kernel
3k1nBq/1pq4R/5b1q/3p2r1/2nN1KP1/Qb1p3b/RB2N2Q/rr1N1b1N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 f5 c4 h5 a4 b3 e4 h3 a5 h2 c5 h4 e5 b2 e6 h3 e7 Bg7 c6 Nh6 a6 Nf7 a7 Qc7 g3 Rh5 Nc3 b1R Nge2 Bf6 Qc2 Rg5 Nd1 Nd6 Bb2 Nd7 Ra2 Nf8 g4 d3 Bg2 Bd7 Qd2 Nc4 Qc2 Qe5 c7 Ba4 c8N Qc7 Nd6+ Kd7 e8N Kd8 Nb5 Bb3 Rg1 h1Q Nbd4 h2 Nd6 Be7 Ne4 Bf6 Kf2 f3 N4g3 f4 Rf1 Rc8 a8Q Rb8 Qa3 Ra8 Rg1 Ra4 Kf1 f2 Be4 Qf3 Rg2 Qe3 Bh7 h1Q+ Rg1 Qe8 Bg8 Qh6 Kg2 f1B+ Kf3 Bh3 Rh1 Qeh5 Rh2 Qh8 Nh1 Q5h6 Kf2 f3 Qd2 Qc6 Kg3 f2 Kf4 f1B Qc2 Bhg2 Rh4 Bh3 Rh5 Q6g7 Rh7 Qh6 Qd2 Qc7+ Qd6+ Qd7 Nc1 Qh4 Ra3 Re5 Qh2 Rg5 Nce2 Qh6 Qc5 Rb4 Ra7 Ra4 Qb4 Raa1 Ra2 Qe7 Qa3 Qc7+
2NrnQ1B/rpR1p3/1Nb3n1/nPb4b/3N1KRq/4p2q/7N/kqB1q2Q w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 d5 gxh4 d6 a4 Ba6 cxd6 Bd3 d5 Bc4 d4 Bb3 axb3 Ke2 Kf7 f4 Ke6 c4 d5 g4 h5 a4 h3 c5 h4 b5 e3 Kf3 b2 a5 d3 a6 h2 a7 d2 g5 d4 c6 Kd5 f5 Kc4 c7 h3 g6 d3 f6 Nc6 f7 Nf6 g7 Qd4 g8Q Bg4+ Kg3 Bh5 c8N Bg7 Qe8 Ne5 Qd8 Ne8 Nc3 b1Q Qc2 d1N f8B d2 Qd3+ Kb3 Nb6 Nb2 Qf1 d1Q Ra4 Nbc4 Nf3 Na5 Nc8 Qe2 Rg1 h1Q Rc4 h2 Rc7 Bf6 Bg7 Qe1+ Qf2 Qc4 Ne2 Ka2 Ned4+ Ka1 Kf4 Qe6 Qg2 Qh3 Qf1 Rf8 Rg4 Qeh4 Qf2 Qe1 Qg1 h1B Nh2 Bc6 Bh8 Rg8 Qd5 Bg7 Qf2 Bf6 Nd6 Rd8 a8N Bg7 Nb6 Ra8 Qh1 Ra7 Ne4 Nd6 Nf5 Nd7 Qff1 Bb2 Nd4 Rd8 Qff3 Ne8 Nd6 Ba3 Ndc8 Bc5 Qff1 Qa2 Kf5 Ne5 Qf4 Qb2 Qh6 Qc2+ Kf4 Qb1 Qf8 Ng6#
k2q1n1R/rpprR1pR/2n2K2/1b2N1rQ/b2BN2q/8/2RQ1b1P/1qb2B2 w - - 0 1 illegal: Other
4R1BK/p3RrN1/Q4qb1/4NN2/2npp1n1/1qP2QB1/1k2r1n1/nb2b1qN w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 b4 Ke5 g5 h5 f3 d5 b5 h3 g6 h2 g7 h4 b6 h3 b7 d3+ Ke3 a3 Nc3 a2 Nb5 d2 Bc4 Nf6 g8Q Bf5 Qg6 Nc6 b8N Rh7 Nd6 Na5 Ne2 Rf7 Re1 h1B Ng3 h2 Re2 Bg2 Nh1 e6 Qh6 Bg6 Nf5 Bb4 Rb1 Bc3 Rb7 a1N Re7 Qd6 Qf1 d1Q Qf2 Be1 c3 Qb3 Qf1 Bh3 Qf8 Bg4 Qc8 B4h5 Qa6 Bh7 Re8 B5g6 Bd2 Bh4 Be1 d4+ Kd2 e3+ Kd3 Ng4 Nd7+ Kf4 Ne5 Qe7 Bd5 Qf6 Bf2 Nc4 Bg3+ Kg5 Re1 e2 Ke4 Rb8 Re7 Re8 f4+ Kh5 Rd1 e1N Qf3 Ng2 Re1 Rg7 Nd3 e5 Bg8 Rf7 Kd5 Qg7 Ke6 Qf8 Nhf2 h1Q Re3 Qg1 Nh1 Qb5 Nd6 Qb2 f5 Kg5 f6 Qb3 Nf5 Qh6 Bh2 Be1 Bg3 Rg7 f7 Qh4 f8N Rf7 Nf4 Qh6 Nd7 Qg7 Nh5 Qh8 Nd6 Qf6+ Kd5 Bb1 Nf5 Bg6 Nhg7 e4 Ne5 Rb8 Re2 Rb4 Rb2 Ra4 Re8 Ra2 Rf2 Re2 Re7 Nh4 Rh2 Ng2 Rh3 Qfb6 Rh8 Qd8+ Ke6 Qdb6+ Kd7 Qf6 Ke8 Nce3 Bh7 Nc4 Rf8 Rf2 Re6 Rc7+ Rf7 Re2 Kf8 Rb7 Kg8 Rd7 Rf8 Rf7 Qd3 Nce3 Rfe8 Nc4 Bh4+ Kf4 Kh8 Qb6 Qh3 Qb4 R6e7 Qb3 Nfg3 Ke3 Nf5+ Kd2 Bg8 Kc1 Qf3 Kc2 Bg3 Kb2
2q5/p5kn/PQ3q1p/Nq2B1b1/KBRrr1bn/3N1B2/R2pb3/bQr1B3 w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 Kd2 Kf7 Kc3 c5 Kb3 d5 f4 e5 a4 c4+ Kc3 h6 g4 d4+ Kd2 e3+ Ke1 e2 Kd2 e1R b4 e4 f5 h3 g5 h2 a5 Qf6 g6+ Kg7 b5 Be7 b6 Nd7 a6 Nf8 b7 Nh7 b8B Bd8 Ra2 Ne7 Qb3 Re8 Bg2 Be6 Ba3 Rc1 Ne2 Bc8 Rd1 h1Q Bf3 Qh5 Qb6 Qhg5+ Nf4 e3+ Ke1 e2 Kd2 Qh5 Bb4 Qhg5 Be5 c3+ Ke1 c2 Kd2 Bd7 Na3 Rc8 Ba5 Rc4 Bc3 Ra4 Nc4 Bb5 Na5 Qh5 Ke1 d2+ Kf2 Ra1 Nc4 c1Q Bc6 d3 Ke3 Kh8 Kd4 Qg7 Kc5 Rb1 Rg1 d1B Bb8 e1B Na5 Rab4 Rg4 Ra1 Ba8 Bd7 Bf3 Be2 Bc7 Be6 Bd6 Rc4+ Kb5 Bc8 Bcb4 Bc3 Ka4 d2 f6 Nf5 f7 Rb1 f8B Ba1 Bfe7 Be6 Bf6 Nh4 Bc3 Qd4 g7+ Kg8 Bb2 Kf7 Nd3 Qb5+ Ka3 Bd7 Bg3 Qd6 Rd4 Re4 g8Q+ Kf6 Bf2 Be6 Qg3 Bg4 Qg1 Kg7 Qd1 Qf4 Be1 Bg5 Qb3 Qf6 Qc2 Qd5 Ka4 Qc5 Qb3 Qc3 Qc2 Rc1 Qb1 Qce5 Rd6 Qe8+ Rc6 Qce5 Bd4 Qc8 Rc5 Qd5 Be5 Rcd4 Rc4 Qb5+
1Q1b1b1N/Q2KN3/N3ppRn/bN6/1r1bbqpn/B3B2R/1rn2bP1/1k6 w - - 0 1 illegal: No proof kernel
q1bk4/n1q2R2/Q1n1r2N/p2K2q1/2Q1NRBR/B2p2b1/2q2Pp1/1q1r1q1R w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 g5 b4 e5 h4 d5 c4 d3+ Ke3 g3 h5 d4+ Kd2 a3 h6 e3+ Ke1 g2 b5 e2 Kd2 a2 b6 e4 h7 g4 c5 g3 b7 Ne7 c6 Qc7 Qa4 Kd8 Ba3 e3+ Kc1 e1Q+ Kb2 d2 Kb3 d1Q+ Kc4 e2 Nh3 g1Q Qa6 d3 Nc3 Qc2 Ng5 Qeb1 Bh3 e1Q Bg4 Qef1 Kd4 Bh6 Nce4 Re8 h8R g2 Rh4 Qbc1 Rb1 a1Q+ Rb2 Qa2 Rb4 Qg8 Qc4 a5 Rh7 Ra6 Rf7 Bg7+ Kc5 Be5 Rb1 Bg3 Ra1 Ng6 Kd5 Ne5 Rb1 Re6 Rf4 Rb6 Nf7+ Ke8 Ra1 Rb1 Nh6 Kd8 Rf7 Qcg5 Qa6 Nbd7 b8R Rd1 Rb7 Nb8 Rf4 Qgh7 Ra7 Qb7 Rb1 Qa8 Rc1 Qhb7 Qc4 Qbb1 Rb7 Qh2 c7+ Ke8 Qa6 Nbc6 Qc4 Na7 Qa6 Bd7 c8Q+ Qd8 Bf3 Qe1 Rf7 Qec3 Qb8 Re1 Rf5 Qh1 Bg4 Bc8+ Qbd6 Qg5 Qdc6+ Kd8 Rbf7 Qg1 Rf4 Qh1 Qb5 Rg1 Qcb7 Qc7 Qc4 Re1 Nf5 Nec6 Qba6 Re2 Re1 Rd2 Rd1 Qe1 Rc1 Qe2 Rf1 Rd1 Rfh1 Qg6 Nh6 Qf1 Bb4 Qf6 Ba3 Qg5+
2R2nbB/1B4RQ/prQPN2q/Q1b1rn1r/2Kr3k/2b3bp/3Q2p1/5N1r w - - 0 1 illegal: No proof kernel
BQ3bQ1/1qP1b1n1/1Q5p/1rnn1n1k/K2p2rp/N1QRB1R1/1N3b1n/7b w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Kg6 c4 d5 Kc2 b5 Kb3 e5 g4 d3 f4 d4 g5 d2 a5 h6 a6 e3 c5 e2 a7 e1B c6 e4 c7 e3 Bg2 e2 f5+ Kh5 g6 Bf2 f6 Nd7 f7 Nc5+ Kc2 b3+ Kb2 b4 g7 Ne7 g8Q Nf5 Be4 Bb7 Rh3 Qd5 Rd3 Ng7 Nf3 e1B Bh7 Rb8 a8Q Bc6 Ra5 Rb5 Qc2 d1N+ Ka1 Ne3 Kb2 Nef5 Ne5 Bd2 Ra4 Bg5 Ra3 Bge7 Qb8 Ba8 Qc3 Qb7 Ka1 b2+ Ka2 Nb3 Be3 Nc5 Ra7 b3+ Ka3 Qc8 Ra5 Bh1 Nc4 Qb7 Ra4 Ng3 Be4 N3f5 Ra6 Rh7 Rg6 Rh8 Nbd2 Rh7 Rg3 b1N+ Kb2 Rh8 Na3 Rh7 Ndc4 Nd2 Qa7 Nf1 Qb6 Nh2 Bc6 Qa6 Ba8 Qb7 Ka1 b2+ Ka2 b1N Nb2 Nce6 Qb4 Nc3+ Kb3 Nd5 Ka4 Ne8 Qd2 Rg7 Qc3 Rg4 Qc4 Bc5 Qc3 Bfe7 f8Q N8g7 Qc8 Bf8 Qd8 Bce7 Qb8 Nc5+
r6n/1Qp1q1b1/1B2bRnp/r2NB1k1/1QbpK2N/3P2bR/b4bQq/7Q w - - 0 1 legal: proof: e4 b5 h4 f5 b4 fxe4 c4 g5 Bd3 gxh4 Bc2 a6 Ba4 bxc4 b5 Nc6 b6 Nb8 Bb5 axb5 Ke2 Kf7 Ke3 Kf6 f4 d5 g4 e5 a4 h6 f5 h3 a5 b4 a6 b3 b7 h2 a7 c3 d3 b2 Ra3 d4+ Ke2 c2 Rb3 e3 Kf3 e2 Qf1 e1B Rb4 Bf2 Bf4 c1Q Rb6+ Be6 Nc3 b1B Ke4 Nc6 b8Q Nce7 Nf3 Qb2 Nh4 Bg7 Qg2 Qd6 Qb7 Ng6 Bg3 Qc5 Nd5+ Kg5 f6 Ba2 f7 N8e7 f8B Rg8 Ra6 Nh8 Rc6 Qca3 Qb4 Neg6 Bc5 Rgf8 Bb6 Rf5 Qf1 Bd7 Rf6 Be6 Qa5 Qe7 Qb4 Rb8 a8Q Qc2 Qb7 Ra8 Rg1 h1B+ Qg2 Qd2 Qf3 Qb2 Re1 Bg2 Re3 Bh3 Qh1 Bf7 Nf4 Bfc4 Bh2 Bg3 Nd5 Qg2+ Rf3 Bf2 Bg3 Qh2 Re3 Nf4 Kf3 Bf8 Rd6 Nf7 Nc3 Nh8 Rd8 Kf6 g5+ Kg7 g6 Kf6 g7 Rh5 Rc8 Bhe6 g8Q Rf5 Qg4 Nfg6+ Bf4 Bg7 Qgg2 Rh5 Ke4 Rg5 Rh3 Rh5 Kf3 e4+ Ke2 e3 Kf3 e2 Ke4 Rha5 Rf8+ Nf7 Bg3 Kg5 Nd5 Nfh8 Be5+ Bg3 Rf1 e1B Rf6 Bf2
R3B3/Q4n1k/rN2K1rn/R1R3p1/2p3r1/2p2BP1/1bbr1bnR/1n1q1N1Q w - - 0 1 illegal: No extended proof kernel
NK1nn3/Rbn4B/1B3k2/1Q1p2bb/pNNn2R1/1qrNpr2/1r2P3/4Q2b w - - 0 1 legal: proof: g4 c5 h4 b5 a4 bxa4 d4 cxd4 g5 f6 Rh3 fxg5 Rh2 gxh4 Rh1 h3 Kd2 Kf7 Kd3 g5 Kc4 h5 Kd5 e5 f4 a5 b4 e4 c4 h2 b5 g4 f5 d3 b6 d2 f6 h4 c5 g3 c6 g2 c7 h3 b7 a3 Nc3 a2 Nf3 g1R Ke5 d5 Nb5 e3 Qc2 d1N Qc3 Rg3 Ne1 Rf3 Bd2 Be7 Rg1 h1B Bg2 h2 Na3 Qe8 Qc5 Qb5 Nd3 Qb3 Nc4 Nc3 Qb5 Kg6 f7 Nf6 f8Q Ne8 Bh3+ Bg5 Qfb4 Kg7 Bd7 Nc6+ Ke6 Rg8 b8N Bb7 Na6 Rb8 c8N Nd8+ Ke5 Bg2 Bf5 h1B Bh7 Bh3 Rg3 Bg4 N8b6 Bh5 Rg4 Rh8 Na8 a4 Rf1 a1N Q4a5 Ne6 Nab4 Nc2 Rf2 Ncd4 Rfg2 Nf6 Kd6 Nd8 Kc7 Rg8 Be1 Kf7 Bg3 Rg6 Bd6 Kg7 Bc5 Ne8+ Kd7 Rc6 Bb6 Kf6 R2g3 Bf4 Rg7 Bg5 Rg4 Nc7 Re7 Ne4 Rg7 Nd6 Re7 Ba6 Rg7 Nde8 Re7 Rb7 Kc8 Ra7+ Kb8 Bb7 Na6 Rc5 Qe1 Rc6 Nab4 Ra5 Nd6 Rc2 Nc4 Rb2 Qa6 Rc5 Qb5 Nce6 Nd6 Rc3 Nc4 Ba6 Rb7 N6c7 Ra7 Bb7
K2r1r1N/B1Rbb3/1B1n1bQp/2Qn4/B3p2q/2r2B2/3nPp1k/2Nn1Rr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxf4 c4 axb4 h5 d5 h6 dxc4 Ba3 b5 Nc3 Ra6 Nb1 Rxh6 Bc1 Rh2 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 c3 a4 c5+ Kd3 Ke5+ Kc2 h6 Kb3 c2 g4 c4+ Kb2 f3 a5 Kf4 d4+ Kg3 d5 e5 d6 f2 g5 e4 a6 b3 Kc3 f4 Kd4 f3 Kd5 b2 a7 c3 a8Q b4 d7 b3 g6 Rh3 g7 Be7 Qa5 Na6 Kc6 Nc7 Qc5 Nb5 Bg2 f1R Ra7 Nf6 g8B Nd6 Be3 c1R Nd2 b1N Rc7 b2 Bb3 c2 Ba4 Nd5 Nb3 Nbc3 Bd4 f2 Nf3 b1N Ne5 Rf8 Bf3 Rg1 Nf7 Nd2 Nh8 Rb1 Qf1 Nd1 Nc1 Rb8 Be3 Bf6 Qe1 Qe7 d8B Bg4 Rc8 Bf5 Bb6 Bg4 Rc7 Rbd8 Nd3 c1B Ba7 Nb5 Kb7 Ba3 Nc1 Bd7 Bb6 Nd6+ Ka7 Rg2 Rf1 Kh2 Bd4 Rg1 Be3 Nb3 Qea5 Nd2 Qa6 Bg7 Bd4 Qh4 Be3 Bf6 Bd4 Nc8+ Ka8 Bb4 Bg2 Re3 Bf3 Rc3 Ba7 Be7 Qg6 Bf6 Qb5 Bd6 Bdb6 Bde7 Qc5 Nd6+
bB1N2RN/1r2q1QQ/3qq1n1/2p1bRNb/2B1N1p1/1P2b3/2q4p/rn3K1k w - - 0 1 illegal: No proof kernel
8/1r2BQ2/q2B2bN/1bp1b1rn/bp1N1q2/KnPR1rN1/3N1p1R/1Qrk4 w - - 0 1 illegal: No possible last move, all moves rejected
1q3k2/4R1r1/1nbbQqpQ/B3R3/1N4br/P1rr1n2/1bB1p2p/N1K2B1B w - - 0 1 illegal: No possible last move
1b1bq2b/2R2N1k/3nnnp1/2QPqnRr/N1p3K1/3pR1B1/1Q4b1/2R3rB w - - 0 1 illegal: No proof kernel
1r1b2Bn/1b5B/1k3rp1/pq2B1p1/2b1N3/B3PnR1/1br1Q1R1/qQN1rK2 w - - 0 1 illegal: No possible last move, all moves rejected
1Bk4r/qnb2RR1/1p1bn2N/QQ2RB2/1ppRK1N1/1r1n4/n3P3/b3qb2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 a4 f5 h4 g5 d4 c5 d5 b6 a5 g3+ Kf3 c3 h5 c4 h6 c2 d6 g2 a6 g4+ Kf2 f3 Ke3 f4+ Ke4 f2 a7 g3 h7 f3 Rh5 Qe7+ Kd4 Na6 Rb5 Nc7 Rd5 Nh6 Qe1 Nf7 Nd2 Nd8 Qd1 Nce6+ Ke4 Nb7 Nh3 g1B Nb3 g2 Re5 Bh2 Bf4 g1B Qd5 c1N Nd4 Nd3 Nf5 Qg7 Bg2 f1N Nh6 Bd4 Nf2 Ne3 Bh3 Nd1 Nfg4 f2 Qb5+ Kd8 d7 f1Q Ra3 Bd6 Rb3 Kc7 d8R Ba1 Rf8 Qe1 Rf7+ Bd7 Rb1 Rag8 a8Q Bg3 Qaa6 Kc8 Qaa5 Rd8 Rb2 Bh2 Rd2 Nc3+ Kf3 Na2 Ke4 Ndc1 Rd4 Nd3 Nf2 Rde8 Bf5 Re7 Nfg4 Bc6+ Ke3 Bg2 Bg3 Bf1 Ke4 Rhe8 h8R Bc7 Rh7 Rh8 Rf6 Ree8 Bf4 Qe7 Rff7 Reg8 Nf2 Rg3 Rhg7 Bd6 Nfg4 Qc7 Bg5 Qb8 Bd8 Qa7 Bc7 Rf3 Bb8 Bc7 Red5 Bhd6 Rc5 Nb2 Rcd5 Rb3 Re5 Nd3
b1r4N/3q3B/1pNq1pK1/R6r/1Q1qpqNb/P1n4k/R2BnQ1r/1r5N w - - 0 1 illegal: No proof kernel
R3nQ1b/1bB5/P1R5/1p3NB1/2B1rQB1/3N2K1/r1brrpp1/kqqb3n w - - 0 1 illegal: No possible last move
4qN1R/3q1B1p/b1k4b/KN3B2/2pR1BBb/1qPrnq2/3p1Qb1/Q1r3n1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 d5 f5 d6 fxe4 Qd3 exd6 Qe2 d5 Qd1 d4 Kd2 b5 g4 c5 a4 d5 f4 Kd7 a5 h3 g5 b3 c3 b2 g6 h2 a6 d3 a7 e3+ Ke1 d4 f5 c4 f6 b4 f7 e2 Kd2 b3 g7 Qe8 Ra6 Nh6 g8B Nf5 Rc6 Ba6 Bg2 Ne3 Rc8 Bh6 f8Q Nc6 Na3 b1B Bf3 b2 Nh3 Ne5 Nf4 Rb8 Rg1 h1Q a8B Qhh5 Bfe4 Qf3 Bf7 Bc2 Rg6 b1Q Rg4 Qb3 Ne6 Rg8 Rf4 Rg1 Bf5 Rb5 Bg4 Rd5 Nb5 Rd6 Be4 Rd5 Ra8 Kc6 Bef5 Rd8 Bb2 e1B+ Kc1 Bh4 Ba3 Re1 Bd6 Rh1 Qg1 Bd1 Bc7 Be2 Qa3 Bf1 Nf8 Bg2 Qa1 Rd7 Kd2 Rd8 Qf2 Rc1 Rb8 Ng6 Re4 Nf4 Be5 Ne2 Bf4 Rh1 Ra8 Ng1 Kc1 Rd5 Qab2 d2+ Kb1 d3 Rd4 Qa4 Qa1 d1Q+ Kb2 d2 Rd8 Qd7 Re8 Qde2 Rb8 Qc2+ Ka3 Rd6 Kb4 Qb3+ Ka5 Rd5 Re4 Rd3 Ra8 Nf1 Rd4 Qee8 Rd8 Ne3 Ne6 Qee7 Rh8 Qee8 Nf8 Ne2 Bh3 Rc1 Bhg4 Ng1
3R4/Nq1p1bq1/np4rk/2n1Pnb1/4KQ1r/Bq1N1B1B/n1q1p1QR/7B w - - 0 1 illegal: No possible last move
3qR2q/BB3rnB/R2Q4/b2q2Np/1pprp3/1Bn1b2b/1K1Q2P1/1n3kN1 w - - 0 1 illegal: No proof kernel
1N2B2N/QN1QR3/qP3k1p/2bp3R/1p2q1Kn/rbNp2n1/b2q4/2rrB3 w - - 0 1 illegal: No proof kernel
1N5Q/b1N1qB1p/4n3/3N1N1r/KR1pBbRn/3Qpbq1/k2P2p1/1q1n2r1 w - - 0 1 illegal: No proof kernel
K4b2/B1BP3p/3B1k1n/R1b1N2b/3p1NQ1/pnr1rR2/1p1nB3/1q1Qr1q1 w - - 0 1 illegal: No proof kernel
Nn1K1r2/1p1QB1qr/N1p2R2/1kPRq3/Nn1b4/p1B4q/N1bpn1b1/6Q1 w - - 0 1 illegal: No proof kernel
K1Bk4/QpqpN2b/3p2bB/3P2nr/Bp1Rn3/nq1q1RQ1/5B1b/5N1r w - - 0 1 illegal: Other
2r1n3/2Q2nN1/K1R1p1b1/Q3P1r1/2r1k1nB/RBbq1p1R/1pn2p1N/5R1n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Nc3 gxf6 Nb1 f5 Ba3 f4 Bb2 Rh7 Bc1 Rh8 Kd2 f5 Kd3 Kf7 Kc4 Kf6 Kb5 Ke5 a4 d5 h4 g3 c4 b3 e4 d3 a5 d4 c5 d2 a6 g2 a7 f3 h5 f2 h6 f4 h7 b2 c6 d3 c7 Na6 Rh2 Bf5 c8Q e6 Ra3 Nh6 Qdc2 d1N Qd7 d2 Rh4 Ne3 Qc4 d1N Rh5 Rc8 a8R Neg4 Nd2 b1N Rh1 Bb4 Nh3 Nf7 Qa2 Bc3 Bc4 Bg6 Bb3 Rc4 Rc8 Nc7+ Kb6 Rg8 h8R Ne8+ Qc7+ Kd4 e5 Rf8 Ra7 Na3 Nf1 Ke4 Nh2 Nc2 Ra3 Qd3 Rf1 g1R Qd8 f3 Ra5 Ng7 Bg5 Nde3 Nf4 Ngh6 Ba4 Nhf5 Nh5 Ng3 Rc6 Nh1 Qc7 Rc8 Ra8 Ne8 Ng7 Rg3 Rh3 Rg1 Bh4 Rg5 Ra5 Ng4 Ka7 b5 Ka6 b4 Qa1 b3 Qa2 b2 Bb3 Nef6 Qa4 Nd5 Qb5 Ndf6 Ra3 Ne8 Qa4 Kd5 Qaa5+ Ke4
rq4b1/3R1rpK/3b1RQ1/4bBNR/k2b1pp1/Bbr3R1/2Pp1nQn/6N1 w - - 0 1 illegal: No possible last move
6Rn/1pBpn1P1/nb2BBpk/3B4/Nr1p4/bqQ5/4KR1N/b2bQr1b w - - 0 1 illegal: Other
r1nR4/2Qbr1QK/r1pn1N1R/1b1nBbb1/2pp2p1/1P3q1N/k3B3/3R3R w - - 0 1 illegal: No proof kernel
1Qb3bn/3nr1NP/2bp2pr/B2k1p2/3n1rB1/3p1NK1/1Rq2B2/1B1Rb1Q1 w - - 0 1 illegal: No proof kernel
k4bqq/4K1b1/B3Q1Bb/1pnN1R1N/1pB1pP2/2R1p1n1/b1r1r1b1/Q5B1 w - - 0 1 illegal: No possible last move
1Q6/1RbqB2r/RppNr2r/p3R1R1/1P2n3/rQ1q2Kb/BNp3n1/3r2k1 w - - 0 1 illegal: No possible last move
1bqRn2R/1k3qpn/q5Rp/2Q1r2B/2Np2p1/2N3rq/Rq2b1P1/4QK1B w - - 0 1 illegal: Other
3Brb2/1n1Br3/B3KpR1/q1kpnN1P/7p/n1NRb3/bQQB1p2/n3q3 w - - 0 1 illegal: No possible last move, all moves rejected
4rn2/1k2BBb1/4p3/2r1bPp1/Qq2p1r1/1p1b1R2/QRN1nqN1/1NK1bN2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 h4 Kd7 f4 Kc6 d4 b5 Kd2 g5 a4 e6 h5 c3+ Kc2 g3 d5+ Kb7 a5 c5 d6 g2 f5 c4 h6 Bg7 h7 Nc6 d7 Qb6 d8Q Nf6 Ba3 b3+ Kc1 b4 Be2 c2 Bh5 Nd4 Bf7 Re8 h8N Nd7 Ng6 Nf8 Nf3 g1R Rh2 Rg4 Nf4 Qc5 Ne1 b2+ Kd2 Ra6 Nfg2 Ne2 Qd5+ Rc6 Ra2 Qb6 Rh3 Qf2 Rf3 c1B+ Kc2 c3 a6+ Kc7 a7 Ba6 a8N+ Kb7 Nb6 Bd2 Qa5 Rc5 Nc4 Bb5 Nce3 Bd3+ Kb3 c2 Nf1 c1B Nc2 Be1 Qa4 Bf4 Qd2 Bf6 Nd4 Bc4+ Kc2 Bd3+ Kd1 b3 Nc2 B4e5 Qda5 Rcc8 Be7 Bg7 Qa3 Rc5 Q5a4 Nc1 Nc3 b1Q Rb2 Qa1 Qa2 Ne2+ Nb1 Bc7 Qa5 Bce5 Q2a4 Qa3 Qd2 Ng3 Qda5 Qb4 Kc1 Rd5 Qa2 Rc5 Q5a4 Ne2+
2q1q1Q1/B2bKnR1/kP1R2Nb/1ppB2N1/rQb3p1/1rp1b1r1/n4Q2/6Q1 w - - 0 1 illegal: No possible last move
7n/3BnqbP/1RQQ1p1B/1b3BK1/1rp1p1RN/3r1q2/3rpq1B/Nq1k4 w - - 0 1 illegal: No possible last move
3q1q2/Qb2RQpn/3K1Q2/p5nN/1r2R1PQ/4bBp1/Nr2p1b1/k1B2nb1 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 e5 h5 e6 h4 Qe2 fxe6 Qd2 e5 Qe3 e4 Qg3 hxg3 Kd2 Kf7 b4 Kf6 h4 Ke5 c4 a5 b5 d5 c5 a3 c6 d3 Ke3 d4+ Kd2 e3+ Kd1 d2 Kc2 d1B+ Kd3 a2 Kc4 d3 Kc5 e2 h5 e1B f3 d2 c7 Nh6 b6 Nd7+ Kc6 Kd4 b7 e5 b8Q e4 f4 e3 f5 Nf6 Nc3 Bf2 Be2 Nh7 f6 Nf7 h6 Bc5 Qa7 Nfg5 f7 Rb8 f8Q Rb2 Nh3 Bg1 Bf3 e2 Qf7 Bb3 Nf4 d1N Nh5 Ne3 Rh2 Bbe6 Rf2 Nf1 Rb1 a1Q Na2 Ba6 c8Q Kc4 Qcc7 Kb3 Qf6 Be3 Qcf7 Qf8 Kc7 Bd5 Kd7 Bb7 Kc7 Qa8 Kd7 Kc2 Kd6 Rb4 Rb3 Qd4 Rc3+ Kb1 Rc4 Qd3 Re4 Rb8 Re7 Qd4 Re4 Ka1 Re7 Nf8 h7 Rb2 h8Q Nfh7 Bh1 Qd3 Rf4 Qf5 Qd8 Bg2 Rfe4 Qc8 Qd7 Qf8 Qd8 Bh3 Bf3 Bg2 Nb4 Bd5 Na2 Rb4 Qde8 Bb7 Qd8 Ne6 Qh4 Neg5 Qdb6 Qac8 Qd4 Qa8 Qdf6 Qad8+
1NrkrRR1/2Nb1Pr1/2B1r2p/1Q1p3R/Rqp2B2/1pnn2bb/5q2/2Q3K1 w - - 0 1 illegal: No proof kernel
R5bR/1Bb2p1q/BpQ2Q2/3n2Q1/pkqbpn2/1N3P1r/4n3/1NQKr2n w - - 0 1 illegal: No possible last move, all moves rejected
1n6/3rPppn/b3bq1p/2Rb1N1B/1BB1RKnb/1p3Q1Q/krBq4/7N w - - 0 1 illegal: No proof kernel
2B2N2/3PRqB1/n4r1p/2Q1nk1p/q1qpb3/R2r1p2/1b2N2n/R1Rn2QK w - - 0 1 illegal: No proof kernel
k4BrK/P1bbB2n/4nQB1/2Bpp3/q2q3p/2Q1np1q/2rN4/1R3RnN w - - 0 1 illegal: No proof kernel
1nk4q/p2np3/RB2N2b/p3r2n/b2qBP1N/3Kp1R1/nr1NN3/3bQQ2 w - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 d4 cxd4 a5 g5 a6 gxh4 Rh2 bxa6 Rh1 a5 Kd2 h5 b4 d5 g4 Kd7 f4 d3 c4 d4 g5 h3 c5 h4 b5 h2 b6 h3 b7 Qb6 c6+ Kc7 g6 Rh4 g7 Rh5 Bg2 Bd7 Qe1 Re5 Ra3 Nf6 g8Q Bh6 Ne2 Be8 Qe6 Nfd7 Qf1 Kd8 Rg1 h1Q Rb3 Qc5 Rb6 h2 Ra6 Qc4 Bf3 Qd5 Rg3 Qc4 Ke1 d2+ Kf2 d1B Nd2 d3 Ke3 Qa4 Bb2 Qb4 Bd4 Qc4 Qeh3 Qb4 Qe1 Qb2 Qhf1 Qg1+ Qff2 h1N Bc5 Qh2 Qff1 Qb6 Kd4 e3 Be4 Qh4 Kc4 Qf6 Kc3 Qh8 Bd4 Bf7 Bc5 Bfb3 Kd4 Ba4 c7+ Ke8 c8N Kd8 Nd6 Kc7 N2c4 d2 Kd3 Qb2 Nf5 Qb4 Rh3 Ng3 Nh4 Nh5 Rf3 Nc6 b8N Kc8 Rg3 Qb2 Rb6 Qa1 Na6 Rb8 Nc7 Rb7 Qh1 Ncb8 Ra6 Rb2 Qg2 Bdb3 Bd4 d1N Qgf1 Nc3 Ne6 Bd1 Nd2 Na2 Bb6 Qc1 Ng6 Qc5 Nh4 Qd4+
5bR1/K3B1n1/2P1Qr2/nbrbpq2/R1p1b1N1/b5pN/R1Bbk1p1/3R3Q w - - 0 1 illegal: No proof kernel
2bnQ2N/1k1n4/1pNr2nB/b6B/1nQn3p/n1q4R/1pp1BRKP/2B4r w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 g5 e5 g6 exd4 Be3 fxg6 Bf4 g5 Bc1 g4 a4 Kd7 e4 Kc6 f4 h5 Kf2 g5 f5 h4 f6 d3 a5 g3+ Kg2 g4 e5 c3 f7 b6 a6 b3 e6 d2 e7 c2 e8Q+ Nd7 a7 b2 Nh3 Kb7 Qde1 d1N Be3 c1N Bc5 Rh6 Qd2 Na2 Qde1 Nb4 Nd2 Qf6 Be7 c5 Nf4 c4 Qe3 c3 Nh3 c2 Qe2 Ne3+ Kg1 g2 Ra3 Qc3 Nf3 Nc4 Nd4 Rd6 Nf4 Nh6 Bg5 Bg7 f8B Nf7 Rb3 Na3 Qc4 Nd8 Ng6 Be5 Kf2 g1N Be2 g3+ Kg2 Nf3 Nc6 Nd4 Bc1 Bf4 Rg1 Bd2 Rf1 Be1 Bfh6 Bd2 Kg1 g2 Nh8 Be1 Rf8 Bd2 Kf2 g1N Kg2 Ngf3 Rf5 Nfe5 Rf2 Ng6 Bh5 Rb8 a8B+ Kc7 Bb7 Ra8 Ba6 Ra7 Bb5 Kb7 Qd5 Ra4 Bbe2 Ra5 Qc4 Re5 Bd1 Re1 Bdg4 Rh1 Be2 Qe3 Rc3 Qe5 Rh3 Qe3 Qe7 Qc3 Qe8 Na2 Nb4 Qb3 Nd3 Ba5 Nb4 Qc3 Nc6 Nb4
3N3R/Kr2pnBp/1Rp2R2/N5r1/BP3rkr/3Q1p1b/rb1nQ3/3Rrq2 w - - 0 1 illegal: No proof kernel
1Rn5/rKb2Q1Q/4b1P1/1kB1np1N/r2pp1B1/R2RN1R1/1n1p2bq/2b3n1 w - - 0 1 illegal: No proof kernel
3KQ1rN/1nrp4/2R5/B2B2rn/r1nqN1Rb/1pp2b1N/p2P3Q/N2n1k2 w - - 0 1 illegal: No proof kernel
1n1b2K1/5Bpr/p2QPB2/1QR2N1R/2bp1p2/1Q5b/2nq2p1/1r1kNQrn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 f5 b5 a6 b6 f3 b7 f2 h5 d6 h6 g3 h7 g2 Na3 f4 Rh5 d3 Bb2 Ke3 Kd5 d2 c4 Be7 c5 Qf8 c6 Nh6 c7 Ra7 Rc1 Bf5 c8Q Bg4 Qe8 Bh3 Qb5 Ra8 Nf3 Bd8 Nh4 Nf5 Ke6 d5 Bf6 Qb4 Kf7 d4 Rc5 Ng3 Qb1 d1R Nc2+ Kd2 e4 a3 e5 a2 Bc4 a1N Ne1 f1B Nf5 Rc1 Qb3 Nh1 Be6 Nc2 Bc4 Nc6 b8Q Kd1 Qd6 Qd2 Bd5 Nb8 Be6 Rg8 h8Q Bc4 Qh6 Rh8 Bd5 Rh7 Kg8 Qb4 Bf7 Qd2 e6 Ra7 Qg6 Rb7 Qgg3 Bd5 Qf1 Bc4 Qa4 Rcb1 Qga3 R7b3 Qb5 Rd3 Qab3 Rf3 Qg1 Rf1 Qf2 Rg1 Qe2+ Kc1 Qf1 Kd1
B1R5/1n3KBr/2pBb1B1/Q5N1/2rnN1np/Q1b1qp1P/1p1prqR1/2k5 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 f4 axb4 d5 g5 Ba3 gxf4 Qd4 e5 Bc1 exd4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 a4 b5 g4 h5 e4 d3 h3 c3 g5 Kc4 a5 Kb3 d6 Kc2 a6 c6 g6 b3 d7 d2 Ke6 b2 a7 h4 g7 f3 e5 f2 Ra3 f4 Ra2 b4 Bc4 f1Q Nf3 b3 Kf7 Qb6 d8B Nf6 g8Q Qff2 e6 Qbe3 e7 Bg7 e8Q Nbd7 Qef8 Rh7 Rh2 Ng4 Qa3 Nc5 Bc7 Nb7 Ng5 f3 Rg2 Kd1 Qd8 c2 Bd6 Be6+ Ke8 Bh8 Bd3 Bc3 Bg6 Rc8 a8B Rcc7 Bd3 Rcf7 Bg6 Rf4 Qe7 Rd4 Qa5 Re4 Ra4 Re5 Rf4 Re4 Rf8 Rc4 Na3 b1N Nb5 Na3 Bb2 c1R Rg8 Nc2 Kf8 Bh8 Bg7 b2 Ke8 Rb1 Nc3+ Kc1 Nce4 Nd4 Kf8 Kc2 Ke8 Re1 Qf8 Kc1 Ke7 Bd7 Kf7 Re2 Qe7 Bf5 Rc8 Be6+ Kf8 Kd1 Bf6 Re1 Bde5 Kc1 Qea3 Re2 Bd6 Nc2 Bd4 Be5 Bc3 Bg3 Bg7 Be5 Ke8 Bc3 Ke7 Nd4 Kf8 Bd7 Kf7 Be6+
kBb1Q1n1/2r3BK/q1p1Q3/2rpn3/1p2qpp1/R1Q2NP1/3nRQ2/br5N w - - 0 1 illegal: No proof kernel
1Q1QKB1b/1R4p1/2r2N1n/N3p2B/2Bp1pbb/q1k3P1/Br5p/2n1nRq1 w - - 0 1 illegal: Other
2qn4/R1P1B2r/BB1ppp2/2rb1QK1/2r1BQ2/q4p1R/kb1N1p2/N1qn4 w - - 0 1 illegal: No possible last move, all moves rejected
RQ1b1qnn/pp4K1/k1b2Q2/2pBR3/p1rr4/N1np1rN1/R2P4/5BRq w - - 0 1 illegal: No proof kernel
1b3b1k/1p1B1r1N/Q6P/RnpbbK2/p2NN3/B3r3/2bNp2p/R1n1q2Q w - - 0 1 illegal: No proof kernel
4bq1k/7r/1b1bN1RQ/BPpr3p/7p/nbKNpr1B/p1NN2Q1/4n2R w - - 0 1 illegal: No proof kernel
B2k1r1Q/2R1rp2/K2B3N/1bPnq3/1Rp2b2/1ppn1N1n/n1Q2p2/N1N2r2 w - - 0 1 illegal: No proof kernel
rK5n/1pQbR3/q2n3k/N1p2Rrb/1P3b2/1pQ3Qp/1BNbpQB1/7q w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 g5 c5 gxh4 c6 a4 Qb3 axb3 Nh3 dxc6 Ng1 c5 Be2 c4 Bd3 Qd4 Bf1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 h5 a4 e3 d4 e6 f4 c3 g4 c2 a5 h3 f5+ Kg7 a6 h2 f6+ Kh6 a7 h4 g5+ Kh7 f7 h3 d5 e2 d6 e1B d7 Nf6 Na3 Rg8 Nf3 Bd2 g6+ Kh6 g7 Qa5 d8Q Bd7 Bb2 c1Q Qc7 Ne8 Nc4 Qa6 Ne1 Nd6 Na5 Qd1 Rg1 h1B Rg5 Bf3 Rf5 Bh5 Bg2 Be7 f8Q Beg5 Nc2 Qh1 Re1 Bgf4+ Kf6 e5 Ke7 e4 Kd8 e3 Re2 Rh8 Re1 Rh7 g8Q+ Rg7 Qf6+ Rg6 Qc3 Rg5 Qf7 Bc8 Qg8 Nd7 Re2 Nf8 Re1 Rb8 a8Q Ng6 Qa7 Ra8 Qab6 Nc4 Qbf6 Ra7 Re2 Bd7 Qff7 Ba4 Kc8 Bd7+ Kb8 Nd6 Qff6 Rg3 Qh4 Rg5 Qf2 Nh8 Re5 Rf5 Qgg3 Rg5 Re1 e2 Re7 Bde3 Rd1 Bc1 Rd5 Bcd2 Rf5 Ra8#
2rB1bkq/1n3Rn1/1rb3Np/N1p2p1p/1P1Q3p/Q1K1p3/1NNn1q2/RB6 w - - 0 1 illegal: Other
r3Br2/npnB3q/1R1p1bR1/1Qr2r2/4p1P1/p1Bp1p1Q/4bB1N/2Nk2K1 w - - 0 1 illegal: No proof kernel
1K1N1Nr1/1bn2b1b/5Nb1/3n2qB/n3rQ2/RrR1QP2/R4b1n/4Qnk1 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Bd2 fxe4 Bb4 axb4 a5 b6 axb6 Ra6 Ra5 Ra7 Ra1 Ra8 Ke2 Kf7 g4 Kf6 c4 Kg5 c5 Kf4 b7 e5 b6 d5 g5 h5 g6 e3 Kd3 e2 c6 e1N+ Kd2 e4 g7 e3+ Ke2 b3 c7 b2 Qd2 h3 Rh2 h4 Ra3 d3+ Kd1 d4 Nf3 Bf5 c8Q Bh7 Rb3 Qg5 Rc3 Nf6 g8R Nd5 Rc7 Bc5 Rgg7 Na6 b8Q Rg8 Qe2 d2 Ne5 Nf3 Rce7 Nac7 b7 Ra3 Nf7 Rb3 Nc3 b1B Qe8 Bbg6 Qe1 Kg4 Ke2 d1N Nd8 Nb2 Ref7 Na4 Ne4 Bb6 Rf6 Ba7 Rc6 d3+ Kd1 d2 Kc2 d1N Rc3 e2 Kd3 Kf4 Kc4 Bc5 Rg2 h2 Nf6 h1B Rh2 h3 Qe3+ Kf5 Rg2 h2 Rd7 Bb6 Rd6 Ba7 Ra6 Bd4 Rg3 Bg2 Ra7 h1B Ra5 Bh3 Bg2 Nh2 Bf3 Bf7 Bh5 Be4 f3 Ke5 Rg2 B3f5 Ra8 B5g6 Ra6 Nf1 Rh2 Nf2 Ra7 Ng4 Ra5 Nc5 Ra3 Na4 Rg2 Ba7 Rf2 Ngh2 Rg2 Nab6+ Kc5 Na4+ Kc6 Bb6 Kd7 Bc5 Kc8 Bd4 Qb1 e1R Rga2 Re2 Qe1 Kf5 Q3d2 Bf2 Qa7 Re3 b8N Kf4 Nbd7 Kg3 Nf8 Kg2 Qb8 Re2 Qe3 Kg1 Qb4 Ne7+ Kb8 Bb7 Qbf4 Ned5 Qc5 Re5 Qce3 Re4
1Rqn1N2/1qr2BR1/r1Bn1k2/2r5/4n2b/3qnb2/Qn1Q1PB1/rQK3R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 h5 cxd4 g4 h6 Bf4 Rh7 Bg3 Rh8 Bh4 Ba6 Nd2 Bb7 Ndf3 gxh4 g5 Ba6 g6 Bc8 Ng5 hxg5 Kd2 a5 c4 e5 b4 Ke7 c5 d5 h6 d3 h7 d4 g7 g4 c6 h3 b6 e3+ Kc1 h2 b5 g3 b7 d2+ Kb2 d3 b6 g2 c7 e4 Rc1 a4 Be2 a3+ Kb1 a2+ Kb2 a1R Bh5 e2 Qc2 e1N Bd1 e3 Qc4 e2 Qa4 Ra6 Nh3 g1Q Qc4 Nc2 Qf4 e1R Bh5 d1N+ Kb3 d2 Qb4+ Kf6 Bf7 Bg4 c8B Nde3 Kb2 Nf5 Bd7 Be7 Nf4 Bf3 Ne6 Qg6 Bc6 Nce3 Nf8 Nd6 Rg1 h1Q Qa4 Qe8 Qa2 Qd3 Rg2 Re2 Rcg1 Qc8 Bfd5 Ree1 Rg4 Rec1 Be4 Nh6 g8B Nhf5 Bf7 Rc5 Rg7 Ng3 Bed5 Rg8 h8Q Nge4 Qh3 Rh8 Qd7 Rh7 Qd8 Nd7 b8R Ne5 b7 Qg2 Bg6 Nef7 Qda5 Nd8 Bgf7 Kf5 Qc3 Bh4 Qc1 Kf6 Qe1 Nc3 Qeb1 d1N+ Kc1 Qh1 Qd2 Nb2 Be4 R1a4 Qa2 Qg2 Ra8 R4a5 b8Q Qh1 Qbb3 Qg2 Qb1 Ra1 Rb8 Qh1 Bf5 Qg2 Bh3 Nce4+ Qbc2 Qb7 Qc4 Qg4 Bg2 Qgc8 Qcc2 Rhh5 Qc4 Rhe5 Qcc2 Re7 Qc4 Rc7 Qcc2 Nbc4 Qa2 Nb2+
N1q3bn/BK1kN2b/3r2R1/5n2/rb5Q/1Qb3n1/1BP3n1/bnnBQN2 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 f5 Kd3 a5 Kc4 g5 Kd5 f4 e4 f3 h4 a4 e5 a3 b6 g4 b5 f2 h5 d3 h6 d2 b7 a2 e6 a1B e7 Ra4 h7 Nc6 b8B Nh6 b6 Nf7 b7 Nd4 Na3 Nf5 Qe1 d1N Bg5 Nde3+ Kc5 d5 Kc6 d4 Rh6 d3 Bf6 d2 Ba7 d1N b8Q Nc3 Qc7 Nb1 Bc4 f1B Rh4 Bd3 Qf1 Be6 Qe1 Qc8 Ne2 g1B Nc3 g2 Rh6 g3 Rg6 Bh2 Bd5 g1N Bf3 g2 Nd5 Bhe5 Bd1 Ne2 Nc4 g1N Nd2 Ng2 Nf1 Neg3 Bg7 Rg8 h8Q Bec3 Qh4 Nh8 Kb6 N1e2 Qb8 Kd7 e8N Bf7 Nec7 Nc1 Na8 Bfb4 Ne7 Rd8 Bf6 Bg8 Qb7+ Ke8 Qd5 Be4 Qb3 Rd4 Bg7 Kd7 Bf6 Bh7 Be5 Bd5 Bg7 Bdg8 Bf6 Qf8 Kb7 Rd6 Bg7 Bd2 Bb2 Bdc3 Bb8 Qe8 Ba7 Qc8+
1Bq2B1k/1b1q3b/r3QR1r/3QrqB1/3P2N1/R3R1b1/Q3rnK1/nn3n2 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 g3 h6 Bg2 h5 Bf3 Qg5 Nc3 Qd8 Ne4 Qd6 Nf2 gxf3 g4 Qd7 g5 Qd8 Ng4 hxg4 Kf1 c5 b4 a5 e4 f5 h4 Kf7 d4 Kg7 e5 c3 e6 c4 b6 c2 e7 c3 e8Q a4 h5 f2 b5 a3 g6 a2 b7 g3 b6 g2+ Ke2 f1B+ Kf3 Nd7 b8R Ne7 b7 Bd3 Rh2 Nf6 Kf2 f3 Qe1 f4 Qe6 Qd7 Bd2 c1Q Qc6 c2 Qa6 Rh6 Nh3 g1R Qa5 Re1 Qc3 Ned5 Qb3 Kh8 Qe3 Ra6 Qe6 Nc3 Qbd5 Re5 Rg2 Be7 Rg3 Nb1 Bb4 Bd8 Bf8 Bc7 Ra8 Bd6 b8B Bb7 Ra7 Nc3 Rb1 a1N Rb6 Qb1 Ra8 c1Q Ra7 Qbb5 Qa2 Nb1 g7+ Kh7 Ra8 Qcc8 Kg1 Bf5 Nf2 Ne4 Ng4 f2+ Kg2 f1R Re3 Re1 Qed5 Bc7 Rf6 Nf2 Ra7 Re2 Ra8 Rc6 Raa3 Bc2 Qe6 Qd3 Qad5 Qf5 Qa2 Ra6+ Qed5 Rg6 h6 f3+ Kg3 Re4+ Qe5 Nd3 Rd6 Qff7 Qed5 Kg8 Kh3 Re7 Rde6 Bg3 Rc6 Re5 Rd6 Qfe6 h7+ Kf7 h8B Kg8 Re4 f2 Kg2 Rh6 Rb6 Re1 Re2 f1N Re3 Nf2 Rd6 Bh7 Rc6 Kf7 g8Q+ Ke8 Bf6 Qf5 Bg5 Re2 Qe4 Bh4 Qgc4 Bg3 Re6+ Kf7 Rb6+ Ree6 Qcd5 Kg8 Rc6 Kh8 Rd6 Re5 Rf6 Ree6 Qee5 Re8 Qd6 Re4 Q6e6 Re5
Qrbk2B1/nqrb1q2/r5rR/Q3b3/Q3n1B1/1Nn5/BP4N1/nbK1N3 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 g5 b5 axb5 f3 Ra6 h6 Rf6 gxf6 g6 f5 Bg5 hxg5 Bg2 f4 Bh3 Rh7 Bf1 Rh8 Kd2 a5 h4 d5 e4 f5 c4 d3 c5 g4 c6 a4 h5 g3 b6 a3 g7 d4 b7 g2 c7 f2 h6 a2 e5 a1N h7 f3 e6 f4 e7 Nc6 b8Q Ra6 Nh3 g1R Qbb3 Qd7 Qb7 Nf6 g8N Bg7 Rh2 Rg6 Rg2 Ne4+ Kc1 Be5 Qb5 Na7 Nh6 Rf8 Be2 f1Q h8Q f2 Na3 f3 Rh2 Qg2 Qb6 f1B Qa5 f2 Bg4 Qe6 Qb3 Qf7 Nc2 Rfg8 Nf4 d2+ Kd1 Bd7 c8B Bd3 Qba4 f1B Ne1 Bb1 Nf5 Bfb5 Bb7 Bc8 Bd5 Bbd7 Ba2 Qh1 Ng2 Rf8 Ke2 d1R Rh6 d3+ Ke3 d2 Nd4 Rc1 Nb3 d1N+ Ke2 Ng5 Kd2 Rc7 Qg8 Nc3 Kc1 Qc4 Qgd5 Nge4 Qdc6 Qd5 Qa8 Qh5 Qd4 Qb7 Qda4 Kf7 e8B+ Ke7 Bf7 Kd8 Bc4 Qf5 Bg8 Qf7 Q5b5 Re8 Qba5 Ree6 Qb6 Qb8 Qba5 Reb6 Qb7 Qa8 Qb8 Qc6 Qa8 Rb8 Bf3 Qcd5 Bg4 Qb7
n1R3K1/rN4r1/BQQ1r1Q1/2Bb4/b1R1q1n1/4n3/P1Rr2bp/B2kq2r w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 axb4 e5 cxd4 e6 fxe6 Ke2 e5 Ke1 e4 g4 Nf6 h4 Nd5 f5 Nc6 Nc3 Ne5 Nce2 Nc6 Nf4 gxf4 g5 Nf6 g6 Nb8 Nh3 Bh6 Ng1 Bg5 hxg5 Ng8 Ke2 b5 c4 h5 g7 Kf7 g6+ Kf6 c5 Ke5 c6 d5 f6 b3 f7 e3 Kd3 e2 f8B e1R c7 b4 Bg2 h4 Qf3 h3 Bd2 b2 Ne2 b1R Nc3 h2 Rf1 b3 Nd1 b2 Qh3 f3 Bh6 f2 Bh1 Bd7 c8Q Na6 Qh4 Ra7 Be4 Nc7 Bg2 Nf6 g8R Rh7 g7 Qe8 Qd8 Ng4 Rh1 f1B+ Kc2 d3+ Kc3 d2 Qf2 d4+ Kb3 d3 Kc4 Ba4 Qb6 Na8 Bb7 Bg2 Ba6 Ke4 Qc8 Kf3 Kd5 e5 Nf2 Ke2+ Ne4 d1R Bc5 Rd2 Qcc6 Kd1 Rg1 Qg6 Rc8 Qe8 g8Q Rhg7 Rf1 Rc1 Rf8 b1B Rf2 Bbc2 Kd6 Bcb3 Bhe3 Bc4 Bed4 Bd5 Rb1 Ree2 Ba1 Re3 Rb4 Qg6+ Nf6 e4 Rc4 Ree2 Qe6 e3 Nd7 Qe4 Qg6 Re1 Nf8 e2 Ne6 Rh1 Nd8 e1Q Nb7 Rcc2 Rf3 Re2 Rh3 d2 Rhc3 Bf7 Kd7 Be6+ Ke8 Bd5+ Kf8 Rb2 Qbc7 Rb6 Rc2 Rf2+ Qcf6 Re6 Qc6 Ke2 R2c3 d1N Rc1 Nde3 R1c2+ Kd1 Qb6 Rge7 Kg8 Rd2 Qc6 Rd7 Qb2 Rh7 Qbb6 Rg7+
3Qr1Q1/2bQ2Nn/1NR4q/3q3P/q1rn3B/3K2BB/kqnp1q2/1Nr1b3 w - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 d4 cxd4 f5 b6 f6 exf6 Bg5 f5 Nd2 f4 Nb1 f5 Bh6 f3 Bc1 f4 a4 Bb7 Ra3 h6 Rc3 Be4 Rc5 h5 Rg5 Bf5 gxf5 Nc6 Rg3 Nb8 Rg4 hxg4 Kd2 Kf7 c4 d5 e4 g5 h4 d3 f6 Ke6 c5 f2 h5 g3 a5 b5 a6 g4 f7 b3 e5 b2 c6 d4 c7 Kd5 c8Q g2 e6 f3 e7 g3 e8N b4 a7 b3 Qb7+ Kc4 Qe2 Bd6 f8B Nc6 Rh2 Nf6 Qe1 Bc7 Qe7 Nh7 Rh3 Rc8 a8Q Qd5 Ne2 g1Q Nf6 g2 Bh6 Rhe8 Nbc3 b1R Qaa3 b2 Kd1 d2 Kc2 d1N Qba7 d3+ Kd2 Nd4 Q3a6+ Kb3 Qad6 Ne3 Ng3 Nec2 Qed7 Qh2 Be3 g1B Nf5 Qf4 Qa8 Qh6 Bf4 Ra1 Rh1 b1Q Bh3 f1Q Ng7 Qb2 Nb1 f2 Q6e6 Bh2 Qg8 Bg3 Rg1 Bh4 Rg6 Bg3 Qb8+ Ka2 Qb6 Qh1 Qb8 Qc4 Nd5 f1Q Rc6 Qa4 Nb6+ Qd5 Bg5 Re4 Qa8 Rce8 Qad8 Rf4 Bh4 Be1+ Kd1 Rfe4 Bf4 d2 Be5 Qf2 Beg3 Ne6 Bf4 Rc4 Bfg3 Qf7 Ke2 Ned4+ Kd3 Qf2 Na3 Rd1 Nb1 Rc1
1R2QBk1/1N2KR1r/4q2p/1r1B3n/1P2n1b1/Qbq1Qn2/q3Brq1/3R2q1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 b5 Nd2 bxa4 Nb3 Bh6 g6 Bg5 Nd2 e4 Ndf3 exf3 hxg5 Qb6 Bh3 Qf6 Bf1 Qd8 Kd2 Kf8 Kd3 f5 Kc4 d5+ Kc5 a5 c4 d3 b4 a3 e4 h6 e5 a4 e6 a2 Be3 d4 Bc1 a3 Be3 d2 Bh3 f2 Qc2 f1Q Qb2 d1Q Qb1 f3 Bg4 f2 Be2 f4 Nh3 f3 Nf4 d3 Qc1 d2 Rg1 Nc6 Nd3 Nf6 e7+ Kg8 g7 Qe8 Kd6 Nh5 c5 Ne5 c6 Bg4 c7 Rh7 c8Q Rb8 Nc5 Qg2 Rf1 Rb5 Qa6 Qc2 Qa5 d1B Nb7 Qc3 Bc5 Bb3 Qe3 Qc8 Rae1 a1Q Rd1 a2 Qa6 Qb1 Qa3 a1Q e8R+ Kf7 Rh8 Qba2 g8B+ Kg7 Bd5 Qe6+ Kc7 Q1b1 Rb8 Qbg6 Kd8 Kg8 Bf8 Qg7 Rg1 f1N g6 Nfg3 Rgf1 Ne4 Rf2 Qgf7 Rff1 f2 g7 Nf3 Rd2 Qfg6 Rdd1 Kf7 g8Q+ Kf6 Qh8+ Kf7 Bc5 Qg1 Qe8+ Kg7 Bf8+ Kg8 Rfe1 Qg2 Rh1 f1R Rh4 Bf5 Rf4 Bg4 Rf5 Rf2 Rf7 Qef5 Ke7 Qfe5+ Be6 Qeh2 B6c4 Qhg1 Bd5 Qe6+
1r5n/7R/1NrnBP1b/1n1N2Q1/1q1bR3/Q1Q3b1/RNpK3k/2qn2qn w - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 g4 axb4 Nf3 f5 Ng1 fxe4 f4 h6 f5 Qd6 Bb2 Ra4 Bf6 Ra7 Bg5 hxg5 f6 Bf5 gxf5 Qd8 Nh3 Ra3 Ng1 Ra8 h4 Kd7 d4 Kd6 a4 e5 f7 b5 f6 c5 h5 c3 h6 g4 a5 g5 a6 c4 h7 c2 d5 c1Q a7 b3 Ra4 e3 Bd3 g3 Ne2 b4 Nbc3 g2 Ra1 g1B Rh5 g4 Be4 g3 Rh2 b2 Bb1 b3 Be4 b1N Nf4 e2 Rh5 g2 Ra2 b2 Ra6+ Nc6 Ra2 Bh6 f8R Na3 Rh3 b1N Bf3 e4 Rh2 Ke5 d6 Qb6 d7 Bd4 d8N Rc8 a8Q Na5 Qc6 Qb4 Bg4 Ne7 Rd2 Ng6 Rd3 Nb7 Bd7 Nd6 Rf7 Nab5 Nd5 g1N Rh4 Nh3 Ne6 Nf2 Nc5 Nh1 Be6 Rhd8 Rb7 Nh8 Nb6 Rb8 Rdh3 Rdc8 Nca4 Rc7 Rg3 Rcc8 Rh2 Kf4 Rg4+ Kf3 Rf4+ Kg3 Nb2 Rc7 Ra7 Rcc8 Qa8 Rc6 Rh3+ Kg2 Ra2 Kg1 Qa3 Kg2 Rd3 Kg1 Rd2 Kh2 Ncd5 c3 Rg4 c2 Rf4 Ng6 h8Q N1c3 Qc8 Nh8 Qc7 Qa1 Qc1 Nd1 Qc3 Qb1 Qg7 Qa1 Rd3 Qb1 Kd2 e1B+ Ke2 e3 Re4 Bg3 Qg5 Bge5 Ke1 e2 Kd2 Bg3 Rf3 Kg2 Rff4 Kg1 Rh4 e1Q+ Kd3 Qf1+ Kd2 Kg2 Rh5 Qg1 Rh3 Bf8 Rh7 Bh6 N2c4 Qa1 Qa3 Kh2 Nb2 Qc1+
K1kNb3/br2R3/2b1Pprb/2nRQ3/3q4/3n2r1/1bbB1Q1B/2Bn2QR w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Bh3 g5 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Nc6 Be6 Nb8 Bg4 hxg4 Kf2 a5 h4 d5 b4 Kd7 e4 a4 c4 d3 b6 d2 h5 a3 g6 a2 b5 d4 b7 d3 c5 Rh6 b6 Ne7 g7 Rg6 g8R Bg7 h6 Ra7 h7 Nd5 h8Q Na6 b8B Ndb4 e5 Rb7 Re8 Bh6 Nh3 f6 Qg1 d1B Ng5 d2 Nf7 Bc2 e6+ Kc6 Qg7 Bd7 Re7 Be8 Be5 Qd6 Bc3 Qe5 Rb1 a1B Rh5 Qd6 Rd5 Bb2 Qe1 Qe5 Qe3 Qd4 Nd8+ Kb5 c6+ Nc5 c7 Ka6 c8Q d1N+ Kf1 f2 Kg2 f1R Qe5 g3 B3d2 Rh1 Kf3 g2 Qcb8 g1B Qa7+ Kb5 Qg8 Nd3 Qg7 Rh4 Qg8 Rhg4 Ra1 Rc7 b7 Rg2 Qa2 Kb6 b8B Be3 Nc6 Kb7 Nd8+ Kc8 Rb1 Nd7 Qa7 Rb7 Qg7 Qc5 Ke4 f3 Bc7 Qd6 Qad4 Bg1 Qf2 R2g3 Bb8 Nc3+ Kd4 N7c5 Ra1 Nd1+ Kc4 Rd7 Kb5 Rc7+ Ka5 Qd7 Kb6 Qa4 Nb7 Qd4 Ka7 Bc6 Ka8 Rd7 Qg2 f2 Bc7 f1B Qf2 Bg2 Rb1 B6a4 Nd8 Bh1 Bd6 Rb7 Qh8 Nc3 Qf1 Bg7 Qe4 Qe5 Rd4 Nd7 Qh2 Bh6 Qff5 Bge3 Qff2 R3g4 Qhg2 Qc5 Bh2 Rg3 Qe5 Qb4 Rd6 Ba7 Ra1 N7c5 Rd4 Ba3 Bb2 Be8 Rd1 Qc4 Bbc1 Bb2 Qgf1 Bhc6 Rd5 Qd4 Q1g2 Qe4 Rh1 Qd4 Qgg1 Nd1
2Kqn2b/br2B1R1/B6k/2n1b1r1/q3R3/2p1QPQ1/b1b2Q1B/bR4Nb w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 d5 e4 dxc4 b5 f5 Nc3 fxe4 Na2 b6 Nb4 axb4 a5 Qd4 axb6 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 h5 d4 c5 g4 b3 f3 c3 g5 c4 b7 c2 b6 b2 d5 b1B d6 h3 d7 h2 Be2 h4 Qd2 c3 Ra2 h3 Qe1 Rh7 Ra7 Na6 b8Q Bg7 b7 Ba2 Bd3 Nc5 Ra4 Ra5 Qf2 Nf6 Qg3 Bh8 Rd4 Ne8 Ba3 c1B+ Kf2 Bb2 Ke3 Ba1 Qd6+ Kh5 g6 Kh6 b8B Bb7 Ke2 e3 Qe6 Be4 Ba6 Bc2 Re4 Rg7 Qf2 Rb5 Qg4 Rb7 Qgg3 Rg8 Rf4 e4 g7 Na4 Be7 Nc5 Kf1 e2+ Ke1 Rf8 g8R Rf5 Rg7 Rh5 Qe3 Rg5 Kf2 e1B+ Ke2 Bf2 Be5 Qb6 d8Q Qc7 Qdd4 Qd8 Qc1 e3 Qf1 Be1 Qff2 Bd2 Re4 Bc1 Ke1 e2 Qfe3 Bd2+ Kf2 e1B+ Ke2 Bc1 Qef2 Ba3 Ke3 Bb4 Kf4 Ba5 Qb4 Bb6 Qbd4 Ba7 Qde3 Bd2 Ne2 Be1 Rf1 h1Q Ng1 Bd2 Rb1 h2 B5d6 Qg2 Bb8 h1B Bbd6 Qf1 Bc7 Qb5 Be5 Rg4+ Kf5+ Kh5 Bf4 Qa4 Bb8 Nb3 Ke6 Rg5 Bc7 Kh6 Qd4 Qa5 Qgg2 Kh5 Bh2 Bf4 Qgg3 Qa4 Qdd2 Kh6 Qde3 Qa8 Qed2 Be5 Qde3 Rb5 Kd7 Qd5+ Bd6 Rb7+ Kc8 Nc5 Be7 Qd8+
BrN3bq/4K2P/4r3/qr6/b1kNNQ2/1r3Rpr/Qr3rn1/3nQ1BB w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 Kd3 Ke7 Kc4 Kd6 h4 b5+ Kd3 Kc5 Ke4 d5+ Ke5 g5 e4 b3 c4 g3 f5 d3 a5 g2 h5 b4 a6 g4 f6 b2 f7 b3 f8Q+ Ne7 Kf6 d4 a7 g3 e5 d2 e6 d3 h6 Nc6 Qe2 d1R Nc3 b1R Bf4 d2 Qe8 b2 Nh3 g1R Na2 Ng6+ e7 Re1 Qd7 d1B Rh2 Nce5 Bg5 Nd3 Nf4 Rb8 a8B Nh4 Bg2 f1R Qa4 f2 Nc3 Qa5 e8Q Be6 Bh1 Rg2 Ke7 Bg8 Ne4+ Kd4 Qa2 Ba4 c5 Rb3 c6 Kc4 Qg4 Re2 c7 Rfe1 c8N f1Q Qgh5 Nf2 Qf3 Nd1 Ne6 Rgf2 Qff8 Qh3 Be3 Ng2 Qf4 Rd2 Bb6 Rd5 Nd4 Rb5 Qff8 Qh5 Rh4 Re3 Rf4 Ree2 Rf3 Rh7+ Kd8 Qe5 Qf4 Qh8 Nc5 Re6 Ne4 Rb7 h7 Rb8 Kd7 Rc1 Qe7 b1R Kd8 Rbb2 Qe8 Rg6 Ke7 Re6+ Kd7 Qe1 Nc2 Ree5 Qd8 Rf1 Bd4 Ra1 Qa5 Re6 Be3 Qb4 Nd4 Nc3 Kd8 Rae1 Bf2 Rh6 Ng5 Ree6 Ne4 Nd1 Bg1 Rff2 Kd7 Rh3 Kd8 Rd6+ Ke7 Qe1 Qad2 Ra6 Qde3 Qa5 Qe1 Re6+
3K2Nk/3b1Q2/R3b1n1/Rnb1r2r/6n1/1Q4pb/1nPRB1nN/1q2NQr1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 a5 Kd3 d5 b4 g5 h4 f5 e4 Kf7 h5 Kg7 b6 a4 b5 f4 b7 g2 b6 g3 e5 a3 e6 g4 e7 a2 e8Q f3 Nd2 f2 Ngf3 g1N Rc1 a1N Qee2 g2 Ne1 g3 Nef3 Nc6 b8Q Nge7 b7 Nb3 Qe4 Ng6 Ra1 Nh3 Qde2 g1R Qf5 Qb6 Qff4 Be6 Ne1 Bc5 Rh2 Ra5 Ndf3 Re8 h6+ Kh8 h7 Rb5 Bg2 f1B Ra5 Bd7 Bh1 Bg2 Qf1 Nce5+ Ke2 Ng4+ Kd3 Be6 Qf7 Bd7 Qd6 Re7 b8N Re5 Nc6 Qb8 Ne7 Rh5 Ng8 Qb7 Ke2 d3+ Kd1 d2 Ke2 d1N Kd3 d4 Kc4 d3 Qde6 d2 Qe3 Na1 Qb3 Nhf4 Ra6 Bh3 Rg2 Nd3 Nh2 Ndf4 Re2 Qb8 Bf3 Ng2 Re5 Ra5 Kd5 Nb2 Be2 d1B Rg5 Be6+ Kc6 Qb5+ Kc7 Qb4 Qd3 Nb3 Kd8 Nd4 Qb3 Nb5 Rd5 Qd2 Rdd6 Qc1 Rd2 Qb1 Q7f3 Kg7 h8R Re5 Rh4 Rh5 Qf7+ Kh8 Bc4 Bf3 Bd3 Bc6 Be2 N4e5 Rhd4 Bcd7 Ra4 Ng4 Ra3 Ra4 Ra2 Re4 R2a5 Ree5
1nn4B/3PR3/q1r2Q2/p1b1r1bQ/N1b2R2/1nb3Q1/k1b3Kr/3nNN1R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 Kd7 d4 Ke6 b4 f5 h4 g5 e5 Kd5 b6 a5 h5 c5 e6 f4 b7 f3 b5 g4 h6 c3 b6 Kc4 d5 f2+ Ke2 f1B+ Ke3 c2 h7 Kb3 d6 c4 e7 c3 e8Q Bh6+ Ke4 Bc4 Rh5 Bf5+ Ke5 Qc8 d7 Bg5 Qf3 Ne7 Bb2 c1R Ra4 Bc2 Rh1 Ra6 Qf6 Re1+ Kd4 Re5 Nf3 g1N Qh5 g2 Ne1 g3 Rb4+ Ka2 Nd2 Nh3 Nf1 Nf2 Ba1 Rd8 h8R g1B Re8 g2 Bb2 Qc6 Ba1 Nc8 Re7 Rh8 Bb2 Be4 Ba1 c2 Bb2 Bh4 Ke3 c1N Kf4 Bg5+ Kg3 Bc2 Bc3 Be2 Rf4 Nd1 Ba1 Bd4 Bb2 g1B Kh3 Qa4 Kg2 Qb5 Bc3 Nc6 b8N Bc4 b7 Nb3 Bb2 Rb6 Na6 Bc3 Nc5 Nb8 Na4 Qa6 Ba1 Bc5 Bb2 Nc6 b8Q Rh7 Qbd6 Nb8 Qd3 Rh8 Qg3 Rc6 Qhh2 Rf5 Qd6 B3b4 Qe6 Rh3 Bh8 Re5 Qf6 Rh4 Qhh3 Bc3 Qhg4 Rh3 Qh5 Rh2+
rN6/1N5Q/2pBbq2/2Q2P2/1bn2QBB/1qkN1Kb1/q1b1b3/R2qrn2 w - - 0 1 illegal: No possible last move
R2RqN2/4kN1q/bQ1pbrQ1/3b4/1b1nqN1P/Br6/2R3Q1/r1r1nK2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 b4 g5 h4 f5 e4 a5 c4 f4 c5 d3 c6 f3 c7 a4 b6 f2+ Kd2 f1B Ke1 a3 e5 a2 b5 g4 e6 Ke7 b7 Nf6 b6 Ra3 Bg5 Rb3 Nd2 Nc6 b8R Nd4 b7 Rh6 Qc1 Qe8 Rb1 a1R Ne2 g1Q Rh2 g2 Nc4 g3 Qd2 Qh1 Nf4 g1R Rd1 g2 Ne5 Rg6 Bh6 Nh7 Ra8 Rf6 b8Q Ng5 Nf7 Ngf3+ Kf2 Be2 Qb6 Ne1 Qb2 Ba6 c8Q d2 Qcc2 Bf3 Qg6 Bd5 Bg7 Rf5 Be5 Rf6 Qa2 Nb5 Bb2 Rf1+ Ke2 g1Q Ba3+ Qc5 Qac2 Rg1 Qce4 Nd4+ Kf2 Qd6 Qeg2 Qb4 Rc1 d1B Rc2 Bg4 Rh3 Qh2 Rd3 Nef3 Rdd2 Rgc1 Rd3 Ne1 Kf1 Rbb1 Ng5 Rb3 Nh7 Bg7 Nf8 Qh1+ Qg1 Qe4 Qg2 Qd6 Qg5 Qh7 Qg6 Qb4 Qb7 Nb5 Rg3 Bh6 Rgc3 Qef7 Rcc8 Kd6 e7 Bge6 e8N+ Ke7 Nd6 Qe8 Rd8 Qe4 Qb6 Bg5 Nf7+ d6 Rf2 Nd4+ Nd3 Bf4 Re2 Bd2+ Nf4 Bab7 Rf2 Bb4 Rc2 Ba6+
QqQ1K3/rbRRb1q1/3r4/rrbPkB2/7q/2p2n1r/QBBr4/2R2N2 w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 h5 Nc3 f5 Ng1 f4 Ne4 Nc6 Nf2 Nd4 Bg2 Qd5 Bf1 Nf5 gxf5 Qd8 Ng4 hxg4 Kf2 Kd7 d4 Kd6 a4 b5 e4 g5 h4 c5 h5 g3+ Ke1 g4 Kd2 c3+ Kd3 g2 f6 f2 d5 b3 f7 f3 h6 c2 a5 c4+ Kd4 b2 h7 b1R a6 g3 a7 b4 Bd3 f1R Qd2 f2 Rh2 b3 Qe3 c3 Rh1 b2 Ne2 g1B Qd2 g2 Ng3 Rd1 Nf1 Be7 f8R Bb7 Rf7 Nf6 Ra5 Ra1 Rc5 b1Q Bb2 c1R Bc2 Nd7 Rc7 Ra5 Kc4 Rb8 a8Q Ke5 Qe2 Ra7 Kb5 Rd2 Qc4 Re1 Qa2 Re3 Rg7 Rh3 Rf7 Rg8 h8Q+ Rg7 Qe8 Rg6 Rg7 Rd6 Rf7 Kd4 e5 Qe1 e6 Ne5 Qd7 Nf3 Qc8 Ke5 Bf5 Qe4 Rh7 Qh4 Rg7 Bg5 e7 Bf6 e8B Be7 Beg6 Qg8 Ng3 f1R Rd7 Rb1 Nf1 Bc5 Bc2 g1Q Bgf5 Ra1 Rc7 Bf8 Rgd7 Q1g5 Ne3 Q5g7 Rc1 Be7 Nf1 Qd8 Qa6 Qdh8 Qe8 Nh2 Rd8 Nf3 Qa4 Ra2 Qc4 R2a4 Qa2 Re6 Rd6 Ba6+ Kc6 Rb5 Kd7 Raa5 Qeb8 Qhf8 Qbb7 Qb8 Qc8 Bb7 Ke8 Rg6 Rdd7 Rd6
1RrnK3/1n1pB1rr/3b3r/n1NPn1R1/5QNk/2r2Qb1/R2Q4/1r2Nb2 w - - 0 1 legal: proof: f4 a5 b4 axb4 g4 e5 c3 bxc3 Bh3 exf4 Bg2 Ba3 Bf1 Bf8 Bh3 h5 Bf1 f5 Qa4 f3 Bh3 f4 Qc2 Qg5 Qd1 Qf5 gxf5 Kd8 Bg4 hxg4 Qa4 Ke7 Qd1 Ke8 Kf2 Kf7 e4 Kf6 h4 c5 d4 b5 a4 g5 h5 c4 h6 c2 h7 c3 d5 g3+ Kf1 f2 Ke2 f1N Kd3 b4 Kd4 f3 a5 g2 a6 g4 a7 f2 Ne2 g1N Nd2 Kg5 Ke5 b3 f6 g3 f7 b2 Ra6 b1R Rhh6 g2 Nd4 Ng3 Rh1 f1R Qf3 Nf5 N4b3 Ngh6 Ra2 Ba6 Nc5 Nd6 Ba3 c1B Rh4 c2 Rg4+ Kh5 Kf6 Nc6 e5 Nb7 e6 Bd6 f8Q Nca5 e7 Rc8 a8R Nf7 e8N Nfd8 Rg5+ Kh4 Rb8 Bg3 Bb4 Ba3 Ke7 c1R Nf6 Rc3 Ng4 Rfc1 Q3f4 Nf3 Ke8 Ne5 Qf3 g1R Qf4 Bf1 Nf3+ Kh3 Ne1 Kh4 Qd2 Rh1 Qf4 Rg8 Qf3 Rg6 h8Q+ Rh6 Q8f4 R1c2 Qhf8 Rg2 Qd2 Rh7 Q8f4 Rh3 Ne4 Rh6 Bf8 Bd6 Be7 Rh7 Rg8+ Kh5 Rg7 Bh2 Ngf2+ Rg4 Nc5 Bg3 Qfd3 Rg6 Ng4 Rh2 Qdf3 Rh4 Rf7 Rgg7 Rf5+ Kg6 Rf8 R4h6 Rf6+ Kh5 Rg6 Rcc1 Rg5+ Kh4 Qf6 Rc2 Q6f4 Rc3
2q1n1b1/8/1kb2rBB/Np3p2/2b4B/1bRP2N1/QNrQK2b/rn3n1Q w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Ra2 exf4 Ra3 bxa3 e4 Kd7 g4 f5 d6 Kc6 g5 h5 e5 b5 a5 h3 e6 a2 g6 a1N e7 f3 e8N h4 d7 h2 g7 h3 a6 f2+ Ke2 Nf6 g8Q Ne4 a7 Bd6 Bg2 f1B+ Ke3 Na6 Qdg4 Nb3 Bf3 Kb6 Ba3 c5 Qg2 c4 Q2g7 c3 Qg2 c2 Ne2 c1R Bh5 Rc2 Bc1 Ng3 Bg6 Nc7 Nbc3 Rh6 Nd1 Be5 Nd6 Ne8 Rg1 h1B Nb7 h2 Nb2 Qc7 d8B Be6 Be7 Qc8 Na5 Bc7 Qf2 Bhd5 Bh4 h1B Rg2 Bc4 d3 Nd2 Qe1 Nb1 Qd2 Bf7 Rg1 Bfg2 Kf2 Nf1 Ng3 Bc6 Ke2 Bhd5 Rg2 Rb8 a8Q Be5 Qh7 Bg8 Rf2 Rb7 Rf4 Bb3 Rc4 Ra7 Rc3 Bdc4 Qf7 Bd6 Qd5 Bc7 Qh1 Bf4 Nb7 Ra1 Qa2 Bc7 Na5 Be5 Bf7 Rd6 Bg6 Rf6 Nh5 Bh2 Ng3 Bb7 Ke1 Rf8 Qe2 Kc7 Bh6 Bc6 Qd2 Kb6 Ke2 Rf6
3n3k/5n2/1Nb1Pr2/2q1QNp1/1RR1RBQ1/pN1K4/1Qr1r2n/1bb3nn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 f5 h4 Kf7 c4 a5 b4 d5 e4 g5 e5 Kg7 b6 d3 c5 a4 b7 d4 h5 f4 c6 f3 c7 f2 b5 f1N+ Ke1 d2+ Ke2 d3+ Kf3 Bf5 c8N Qb6 e6 Nc6 b8R Nh6 Nh3 g1R Ne7 g2 Nf4 Qc5 b6 Nd8 b7 Nhf7 Rh4 Rh6 Nfd5 Rf6 h6+ Kh8 h7 a3 Qa4 d1N Nb6 d2 Ke2 Bg7 Re4 Nh2 Kd3 Re1 Rc8 g1N b8Q Re2 Qe5 Bg6 Nf5 Ra7 Ra2 Rc7 Rb2 Rc6 Qc4 Rc7 Rb4 Nf2+ Kc2 Nh1 Kd3 d1B Nd2 Ba4 Nb3 Bc6 Bf4 Bf8 Qcd4 Bd6 Qb2 Re1 Qg2 Re2 Qb2 Be5 Qg4 Bd6 Ra8 Be5 Raa4 Bd4 Rc4 Be3 Rab4 Bc1 Ne3 Be8 Rd4 Bh5 Re5 Qc4+ Ke4 Kg7 Rc5 Qb5 Re5 Rc3 Rdc4 Bg6+ Kd4 Bb1 Re4 Rcc2 Kd3 Nd6 Ned5 Qc5 Ne7 Bc6 Nf5+ Kg6 Ne3 N6f7 h8Q Rf5 Qhc3 Kh7 Qe5 Rf6 Nf5 Kh8
3r4/2p1kb2/3Rnn1b/n1bPrR1p/4N1B1/2Q5/bqQ3B1/brQK1B1R w - - 0 1 legal: proof: g4 e5 a4 b5 axb5 d5 c4 dxc4 f4 exf4 g5 h6 b3 Bb4 g6 Bf8 h4 Nd7 h5 Ne7 Nc3 Ng8 Ne4 Nb8 Ba3 Bb7 Be7 Ba6 Bg5 Bc8 Ng3 Ba6 Nf5 hxg5 h6 Bb7 h7 Bc8 Nh6 gxh6 e4 a5 d4 f5 g7 h5 d5 a4 e5 g4 b6 g3 b7 a3 e6 a2 e7 c3 b4 g2 b5 f3 b6 c2 Rb1 a1B Bc4 c1B Qb3 f4 Qc3 f2+ Kd1 f1B Nh3 g1N Nf2 f3 Ne4 f2 Qc2 Nf6 g8B Nc6 b8R Bch6 b7 Ne2 Be6 Ned4 Rb6 Na5 Bh3 Be6 Rd6 Bf7 Bg2 Ne6 Qc1 Rg8 h8Q Rg5 Be2 Qc8 Bg4 Re5 Qc2 Qd8 Rc8 Bb5 b8Q Bc4 Qbb1 Ba2 Qbc1 Rb8 Qg7 Rb1 Ra8 Qb8 Raa6 Qb2 Rac6 Nh7 Rc3 Nf6 Rf3 Nb7 Rf5 Na5 Rc6 Kd7 e8B+ Ke7 Rd6 f1R+ Ke2 Nb3 Bb5 Na5 Bd3 Rf3 Kd1 Re3 Bdf1 Rb3 Qg5 Rb8 Qe3 Rd8 Qe1 Be3 Qg3 Bc5 Qgc3 Bh6
nNr5/1pn5/3b1kqB/1n4p1/R1nN2Pr/1b5n/BbrQ1KQ1/1QN2B2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g4 h5 a3 h4 Ra2 bxa3 Rc2 Rh6 Rc3 Rh8 Rg3 hxg3 h4 Ke7 e4 f5 d4 g5 h5 c5 h6 c4 h7 f3 e5 g2 e6 c3 d6+ Kf6 d7 f2+ Ke2 c2 e7 f4 e8B f3+ Ke3 a2 d5 a1B d6 Ne7 Qd5 Nbc6 Qb5 Nd4 Bf7 Qb6 d8N Bb2 Bd5 Be6 d7 Rc8 Ne2 g1N Nd2 Nh3 Ba2 Bb3 Nc6 Qa6 Qb4 Nb5 Ned4 Qb6 Nb8 Nd5+ Ke4 Be7 d8Q Ndc7 Ke3 Na8 Qd7 Bd6 Rh2 Ba1 Ba3 c1R Rg2 Bb2 Qc6 Bg8 Nb3 Rc2 Nc1 Bb3 Qd5 Qc6 Qd2 Qe8+ Qe4 Qg6 Qed3 Rhg8 h8Q+ Rg7 Qh4 Rh7 Qg3 Rh4 Bb4 Ng1 Be2 f1N+ Kf2 Ne3 Bf1 Nd5 Rh2 Ndc7 Qg2 Be5 Bf8 Bd6 Bh6 Nh3+ Ke3 Rc4 Qb1 f2 Be2 f1N+ Kf3 Nf4 Kf2 Ne3 Bf1 Rc2 Rh3 Nc4 Rd3 Ba4 Ra3 Bb3 Ra4 Nh3+
b1r1nqBQ/1Qn1p1N1/4Nr2/1K2pn1r/4R2Q/1P2RR1n/1n4kq/3N3b w - - 0 1 legal: proof: d4 b5 a4 bxa4 e4 c5 f4 cxd4 g3 f6 e5 fxe5 Be3 g6 Bf2 Bh6 f5 Bf4 gxf4 h6 Bh4 Kf7 Bf6 Ke8 Bg5 hxg5 Ke2 Kf7 Kd3 Kf6 Kc4 d5+ Kb4 a5+ Kc5 d3 c4 d4 h4 g4 h5 d2 h6 a3 b3 g5 h7 g3 Bg2 a4 Qg4 d1N Bf3 d3 Nd2 a2 Nf1 a3 Rh3 g2 Be2 d2 Rh4 Nb2 Qh5 d1B Rh3 g4 Rb1 a1R Re3 g3 Nf3 g1N Kb5 g2 c5 a2 c6 Qf8 c7 Bb7 c8Q Na6 Nd4 Nh3 Bc4 g1Q Ne6 Qh2 Ng7 Bdf3 Rbe1 Bh1 Qb8 Bbf3 Qb7 Rc8 Re4 Rb1 Ne3 a1N Nd1 Nc2 R1e3 Bfg2 Kb6 Nc7 Qh4+ Ng5 Bf7 Nd4 Kc5 Rc1+ Kb4 Rc6 Ka5 Nh6 Bg8 Nde6 Kb4 Ne8 Kb5 Nd8 Bc4 Ne6 Bd5 Kf7 f6 Kg6 f7 Rd6 f5+ Kf6 Qf4 Nh3 Qf2 Kg5 f6 Nf5 Bc4 Qg8 f8N Ra6 f7 N6c7+ Kb4 Rf6 Nfe6+ Kg6 f8R Kh6 Nf4 Kg5 Kc5 Kg4 Nfe6+ Nf4 Rf7 Qf8 Kb6 Bf3 Kc6 Kh3 Qh4+ Kg2 Kc5 Rg8 h8Q Nh3 Q8h7 Na6+ Kb5 Rh8 Qg8 Rh5 Qh8 Nac7+ Kb4 Rhh6 Qc6 Nd5+ Kb5 Rfg6 Nc7 Re6 Rd4 Ng3 Rff4 Be4 Rff3 Ref6 Qa8 Rh5 Qa6 Ndf4 Bg8 Nf5 Nce6 Ba8 Rde4 Nd5 Qb7 Ndc7+
Q4rK1/p4rBr/b1BQb1k1/1B2nq2/r5pb/4N3/4nQNP/qrR1N3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 Kd3 g5 c4 f5 e4 Kf7 b4 g3 b6 g2 c5 f3 c6 g4 b5 f4 c7 f2 e5 f3 b7 Rh4 b6 Rh7 e6+ Kf6 e7 Nh6 e8B Nd7 b8Q Nf5 b7 Ng3 Bb2 Ne2 Na3 Be7 Nh3 g1R Qd2 Rg3 Bg2 f1R Nc2 f2+ Bf3 Kf5 Rc1 Bh4 Nf4 Qg5 Ne1 Qh5 Nfg2 Ne5+ Kc2 d3+ Kb3 d4 Bfc6 Bd7 c8N Be6+ Kb4 Rh3 Qd6 Rb8 Kc5 Rf3 Qe3 d2 Nb6 d1R Nd5 d3 Bb5 d2 Bec6 Rg1 Bc3 f1Q Qf2 Kg6 Nde3 Rff7 Bd4 Qf5 Bc3 Rg8 b8Q Rgf8 Qa8 Rb8 Rc2 Ra1 Rc1 d1B Bb2 Ra4 Ba1 Kg5 Bd4 Bc8 Kd5 Ba6 Bb2 Qf3+ Ke6 Kg6 N3c2 Qa3 Nce3 Qa1 Bc3 Nc4 Bg7 Bb3 Bd5 Ne5 Rc8 Bc4 Rf8 Rf6+ Ke7 Bb3 Bdc6 Be6 Rd8 Rf7+ Ke8 Rfb7 Kf8 Rf7+ Kg8 Qa3 Nd3 Qaa1 Rf8 Qfb1 Nde1 Qf5 Nd3 Rb1 Rc1 Qe4 Nde1 Qd3 Qd7 Qf5 Qd6 Rbxf8+
Q4Q2/4K1B1/2BNbr2/3q3q/1b2r1n1/r2n1PN1/2p1BQRp/knq1q2N w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 d5 e4 dxc4 b5 f5 Ra3 fxe4 Rb3 b6 Rb4 axb4 a5 Na6 axb6 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 Kd5 Kf4 Kd4 Kg5 h5 g4 e5+ Kg6 e3 Kf7 h3 b7 b3 b6 e4 f3 e2 d3 e1Q g5 e3 g6 h2 g7 b2 Be2 c3 Qc2 h4 Nd2 b1N Bb2 h3 Ne4 c4 Nf2 Nf6 g8B Nbd7 b8Q Nc5 b7 Ra3 Qa8 Ng4 b8Q Rh6 Bh7 Rha6 Be4 Qd5+ Ke8 Rh6 Qf4 Bd6 Qf8 Be6 Ba1 Rf6 Qa2 Bc7 Ke7 Ba5 Qd2 Bb4 Bb2 Qf5 Bc6 Qh5 Bd1 Qd5 Ne2+ Ke5 Rg1 h1Q Ng3 Kd4 Rg2 e2 Bc1 c2 Bb2+ c3 Ba1 Qhg1 Nfh1 c1Q Qc2 h2 Qa2 Ke3 d4 Kd3 Bb2 Qh5 d5 Qd4 d6 Qdd5 d7 c2 d8N Kd2 Nf7 Nd3+ Nd6 Ngf2 Bd4 Ng4 Be3+ Kc3 Bh6 Qf4 Qc4+ Kb2 Qc5 Ka1 Bg7 Qc1 Qb6 Qg1 Qc5 e1R Qf2 Re4 Be2 Qge1
q3QrK1/nn2bBQ1/2r1q2p/1r1bNR1b/1q3R2/Q4r2/NP1Nk1p1/R7 w - - 0 1 illegal: No possible last move
BqN1r1b1/n1BK1b1n/3r1pk1/5pN1/5nNB/qP2n3/2b4Q/1Q3QqR w - - 0 1 legal: proof: d4 c5 f4 cxd4 h4 b5 a4 bxa4 f5 e6 g3 exf5 h5 Be7 Ra3 Bh4 gxh4 h6 Rg3 Na6 Rg2 Nb8 Rg5 hxg5 Kf2 d5 Kf3 a5 e4 d3 c4 g4+ Kf4 g5+ Ke5 d2 b3 a3 c5 a2 c6 a1N h6 d4 h5 d3 c7 a4 h7 a3 h6 a2 Be2 g3 Bh5 g2 Bb2 g4 Ba3 g3 Bf3 Nf6 Qe1 d1B Bb4 d2 Ba5 Nc2 Nc3 a1Q Nh3 g1Q Ng5 g2 Qf1 Be6 c8N Qa3 Bc7 Ra6 Nd5 Rd6 Ne3 Bd5 Ng4 Ne3 Rh5 Rf8 h8Q Bc2 h7 d1B Rh1 Be6 Qg8 Be2 h8B Nh7 Bf6 B2c4 Qg6 Bed5 Qh5 Rg8 Qh2 Nc6+ Kf4 Kf8 e5 Na7 e6 Qe8 Be7+ Kg7 Ke5 Kg6 Bf6 Qb5 e7 Qb8 e8Q Rf8 Qb5 Re8+ Be7 Be6 Ba8 Bcd5 Qb1 Bc4 Nh3 Bcd5 Bh4 f6+ Kd4 Bg8 Ng5 Qgc1 Qe2 g1N Qc4 Nh3 Qf1 Qa1+ Kc5 Nf4 Qff2 Qg1 Qff1 Bc4 Bb6 Rd4 Bc7 Bcd5 Kd6 Qa3+ Kd7 Bdf7+ Bd5 Ra4 Bf3 Ra6 Ba8 Rd6+
N2nq1q1/1kn2p1P/2N1qrr1/Br4b1/1nrR3K/4QR1Q/2p3b1/2Q1N2R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 Kd7 h4 c5 b4 Kc7 d4 a5 b6+ Kb7 h5 g5 d5 g4 b5 a4 h6 c3 d6 a3 e5 a2 h7 c2 e6 c4 d7 c3 e7 Nc6 e8Q Ra6 Qd2 Be7 Rh5 Nf6 Na3 Nd5 Nf3 Bg5 Nc4 Nc7 Qee3 Qe8 d8R g1Q+ Ke2 g2 Rd4 g3 Ne1 Qh2 Kf3 g1R Rh3 g2 Bb2 Qe6 Qc1 Qhe5 Rh1 Qe4+ Kg3 Nd8 Ba3 Q4c6 Bb4 Qce8 Ba5 Rg8 Rb1 a1N Rb3 Rg6 Ra3 Bd7 Rb3 Bc6 Ra3 Kb8 b7 Rb6 Rb3 Rf6 Ra3 Ka7 b8N Bf3 Nc6+ Kb7 Qb1 c1R Qc2 Rd1 Qcc1 Nc2 Rb3 Nb4 Ra3 Ra6 Nb6 c2 Na8 Rb6 Rc3 Rd3 Ra3 Rc3 Rb3 Ra6 b6 Rc4 Rc3 Rf5 Rcd3 Rb5 Rc3 Bh6 Kh4 Rf1 Ra3 g1Q Rd3 Bg2 Qh3 Rf6 Rf3 Bf1 Qe3 Qgg8 Qc1 Bg2 Qe3 Ra7 Qc1 Ka6 b7 Rg6 b8Q Bg5+ Kg3 Rab7 Qc8 Rb6 Qd7 Rb5 Qe7 R7b6 Qc5 Kb7 Qe5 Rf6 Qee3 Rbf5 Kg4 Rg6 Kg3 Rbb5 Kg4 Rff6+ Kh5 Bf4+ Kh4 Bg5+
N4QNQ/R1R1R1B1/2K2N1q/q3n3/P1Qqpb2/5q2/p2rn1nk/3qb2b w - - 0 1 illegal: No proof kernel
3bQqnQ/n2p2b1/3k3p/N5NP/2Rqqb1b/2B4B/2b1bQ2/K1N1rB2 w - - 0 1 legal: proof: d4 b5 c4 e5 f4 f5 a4 Bd6 e4 Be7 g4 Bf8 g5 exd4 Ra3 a6 Re3 Ra7 b4 Rb7 Re2 Rb6 e5 bxc4 b5 axb5 Re4 fxe4 f5 Rf6 gxf6 c3 h4 g5 a5 c5 h5 c2 Kd2 b4 e6 e3+ Kd3 c4+ Ke2 h6 a6 b3 a7 d3+ Ke1 d2+ Ke2 b2 a8B c3 Kd3 g4 f7+ Ke7 f6+ Kd6 e7 g3 e8Q e2 Na3 b1Q Qe1 d1B Bh3 g2 Bb2 Nc6 Qf2 e1B Ne2 g1Q Nc1 Bg7 f8N Na7 Bag2 Ba6+ Kd4 Qb8 Nh7 Bae2 Ng5 Qc8 Bf1 Qa8 Qfe3 Bh4 Qf2 Qd8 Rh2 Qe7 Rg2 Qf8 Rg4 Rh7 Na2 c1B Nc4+ Kc7 Na5 c2 Kc3 Bf4 Ba1 Kd6 Nc1 Qb7 Bb2 Qe4 Kb3 Rh8 Ka2 Rh7 f7 Rh8 Qh2 Qgd4 Ka1 Rh7 Qf2 Rh8 Na2 c1B Bc3 Ba3 Nc1 Bc2 Qg2 Bc5 Qf3 Bb6 Qf2 Qfe7 f8Q Bd8 Qf5 Qf8 Qh7 Bgf6 Qg7 Rh7 Qh8 Re7 Rg3 Bg7 Rd3 Qdd5 Rd4 Re6 Rb4 Qdd4 Rc4 Rg6 Nf3 Rg1 Ng5 Rh1 Bfg2 Rd1 Bf1 Re1
6QB/k3B1qN/pr2b1N1/Nr1b1Q1p/1rrQ4/2bq3P/1n5b/B1R1bK2 w - - 0 1 legal: proof: d4 c5 e4 d5 a4 b5 Bc4 bxa4 Ba6 Nd7 Bf1 Ndf6 Bh6 cxd4 Bc1 d3 Kd2 d4 Ke1 Nd5 exd5 Qd7 Bg5 Qc7 Bc1 Qd8 f4 f5 b4 g6 Be2 Bh6 Bf3 Bf8 Be4 Kf7 Ra3 Ke8 Rc3 Rb8 Rc6 Ra8 Re6 Bg7 Re5 fxe4 f5 Bh6 f6 Bf8 Rf5 gxf5 c4 Kd7 g4 Kc7 h3 Kb8 g5 h5 d6 e5 b5 f4 c5 a6 g6 e3 d7 d2+ Ke2 a3 c6 f3+ Kf1 d3 b6 f2 f7 a2 g7 a1Q b7 e2+ Kg2 e1B c7+ Ka7 b8N f1B+ Kf3 e4+ Ke3 Bg2 Na3 Rh6 Nc4 Ne7 g8Q Ng6 Ne2 Ne5 Nc3 Bd6 Qdg4 d1R f8B d2 Ke2 e3 Nd5 Nd3 Na5 Bh2 Qd4+ Rb6 Bb2 Rc1 Bg7 d1R Ne7 Bc3 Bh8 Bd5 Ng6 Rb1 Re1 Rdc1 Kf1 Rc2 Qe4 Rb4 Rc1 Rb5 Qd4+ Rb6 Ba3 Rb5 Be7 Rcb2 Bef6 R2b4 Bfg7 Nb2 Be5 Qe7 d8B Qa3 Nd7 Qg7 Nf6 Bce6 Nh7 Rc8 Be7 e2+ Kf2 e1B+ Kf1 Rb8 c8Q Rc4 Qcf8 Qd6 Qf5 Rbb4 Qdf4 R6b5 Qd4+ R8b6 Rc2 Nd3 Qdf2 Bb2 Bf4 Qde5 Rc1 Qe3 Be5 Ba1 Bb2 Qd2 Qd4 Qd1 Ba3 Bac3 Bb2 Qc2 Ba1 Nb2 Ne5 Qd2 Ng6 Qd3+
N1b1bN1N/5b2/2p1n2R/4b2b/pP3q1B/3k4/K1RnRrQb/n1Q1n2Q w - - 0 1 legal: proof: c4 a5 g4 e5 h4 g5 a4 d5 f4 dxc4 h5 b5 Bg2 bxa4 Bb7 Ra6 Bf3 gxf4 g5 Rg6 hxg6 e4 Rh6 exf3 Rh5 Nf6 Rh1 Ng8 b4 Ke7 e4 Ke6 d4 f5 Kd2 h5 Kc2 f2 Kb2 f1N g7 a3+ Ka2 a4 d5+ Ke5 d6 h4 g6 f3 d7 h3 Qb3 Kd4 e5 h2 e6 f2 e7 c3 e8Q c2 Qbf7 f4 Be3+ Kd3 Ne2 c1B Qfe6 f3 Nd2 Qg5 d8Q+ Nd7 Q6e7 Bb2 Qe6 Bd6 Rc1 Nf8 Rc5 Nh6 g8N Nf7 g7 Qf4 Qh3 Ne5 Qg2 Ne6 Nf6 Rf8 Nc4 Nd2 g8R f1B Qc6 f2 Nb6 Nef3 Nfd7 Bbe5 Qdg5 Ne1 Na8 Rf7 Rh8 Rf8 Rg1 h1B Rh6 Rf5 Rc2 Rf8 Nc3 Be2 Nb5 f1B Bf2 Bh5 Bh4 Bf7 Qh5 Be2 Rf1 Be8 Rf2 Rf5 Qc5 c6 Nf8 Bb8 Nd6 Bf3 Qhg6 Bh5 Qh7 Bc7 Re2 Bhf7 Qf1 Bf3 Qg2 B3h5 Qh8 Qf1 Qcg1 Rf2 Q1h1 Bh2 Qb2 Bb8 Qc1 Bc7 Ka1 a2 Kb2 a1N Ka2 Bfg6 Nf7 Bce5 Nh8 Bgf7 Qg5 Rg2 Qg7 Qf4 Qg5 Rf2 Qg7 Qe3 Qgg2 Qf4
r4nn1/2BK2rr/Pb4Qb/R7/R2N4/3qB1Q1/pp2pnq1/kB2R1rQ w - - 0 1 illegal: No possible last move
2n2qB1/4QR1P/1r5n/BQ1p4/1p3Q2/BnR1qp1r/2bN1Rb1/q1n2K1k w - - 0 1 illegal: No possible last move
3N1N1n/Qq2QPB1/1nb3r1/Bb1B1NRr/1Q1qpk2/p7/b1p5/1nK1b3 w - - 0 1 legal: proof: b4 d5 a4 b5 h4 g5 e4 gxh4 c3 f5 Ra3 fxe4 c4 dxc4 Rb3 cxb3 axb5 Ba6 Nc3 Bb7 Nb1 Bc8 d4 Kd7 Kd2 Ke6 f4 Kf5 b6 c5 b7 a5 b5 e5 d5 h5 b6 c4 d6 a4 d7 a3 Nc3 h3 Na4 b2 Qe2 h2 Nc5 h4 Ne6 h3 Nf3 Ne7 Rg1 h1B g3 b1B Bg2 h2 Bb2 c3+ Kc1 e3 g4+ Ke4 f5 c2 g5 Ng6 f6 Ra6 f7 Bb4 Qf2 e2 Nf8 e1N Nh4+ Nf3 Nf5 Rh5 Bd4 Qf6 d8N Nd7 b8Q Nh8 g6 Ba2 g7 Kf4 g8Q Be1 b7 Nb6 Qg7 Qh4 Qf6 Bd7 Qe7 Bb5 Qbd6 Qf6 b8B Qh4 Bc7 Qg4 Qfh4 Nd2 Qdd7 Nb1 Bd5 Be4 Qb4 h1Q Qhe7 Qg7 Rg5 Qg2 Bc4 Bec6 Bd5 Qf6 Bb8 Qd6 Qa7 Qf3 Bc3+ e4 Ba1 Qb3 Bg7 Qe5 Nd6 Qd4 Bc7 Nd7 Ba5 Nb6 Be6 Qbd5 Nf5 Qd7 Bc4 Qb7 Bd5 Na4 Bf6 Bd7 Bg7 Rg6 Qf6 Bdc6 Qfe7 Nb6
5B1Q/1q1p1rN1/3bB1k1/pP3rbn/3K1b1B/qQpR3R/n3Rn2/1b5Q w - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 g4 h5 Nc3 b5 axb5 hxg4 Bd2 dxc3 Be3 Na6 Bc1 Nb8 Kf2 g5 b4 a5 e4 f5 h4 Kf7 h5 g3+ Ke2 g4 Kd3 g2 e5 f3 c5 f4 h6 f2 e6+ Kg6 b6 g3 h7 f3 b5 Na6 b7 Nb4+ Kc4 Nh6 b8Q Ng4 c6 Bd6 c7 Bb7 c8Q Qe7 Nh3 g1B Bf4 g2 Kd4 Bh2 Ng5 g1B Qb3 Be4 Qc6 Na2 Bg3 Bb1 Bc4 Rf8 h8B Rf7 Bh4 Bhf4 Rh3 Ra6 Bg7 f1N+ Bf2 Qf8 e7 Ng3 e8R Nh5 Re2 Bgh2 Bh4 f2 Qg2 f1Q Be6 Qf3 Qh1 Qb7 Bh6 Qe7 Qh8 Nf2 Bf8 Rc6 Rd3 Rc5 Rh3 Rcf5 Rd3 Bc2 Rad1 Bb1 Rh3 Bc1 Rdd3 Bhg3 Nh7 Bd2 Nf6 Bg5 Ne8 Bdf4 Ng7 Qa3 Rf3 Bd6 Rd3 B3f4
n1qKB1N1/5b1q/Q3bpPp/r1R2N2/1q1Rr1k1/4b2N/2b1R2p/3QbQ2 w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 gxh4 b4 a5 g5 axb4 g6 Bh3 f5 Bg2 Bb2 Bh3 Be5 Nd7 Bh2 e5 Bf4 exf4 g7 Ne5 Qc1 Ng6 fxg6 Be6 Qd1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 d4 c5 e4 b3 a4 f3 d5 c3 a5 h3 a6 h6 a7 f2 d6 f6+ Kd5 h2 Kc6 c2 d7 c1Q e5 b2 e6 c4 e7 c3 e8N b4 Ra2 c2 Qe2 b3 Ra3 Qe7 d8Q Be6 Nc3 b1B Ra4 b2 Nd6 Rh7 Bg2 f1B Nf5 Qb4 Kc7 Ne7 g8R Nc8+ Qd7 Re7 Bc6 Nb6 Nd5 Bh3 Qa6 Bf7 Qf1 Re4 Nde7 Kh5 Rg7 Kg4 Ng8 Bc5 Qd6 Bf2 Be8 Be1 Qdd3 Qd1 Ra5 c1B Rc5 Bc2 Qd8 Qe2 Qd1 b1Q Rh7 Be3 Rh8 Bg2 Nh3 Qc1 Rh7 Be6 Re7 Bf3 Rd7 Qa6 Rd4 Qc8+ Kd6 Qcd2 Ke7 Qg2 Rg1 Qg3 Rg2 Be2 Qc1 B2c4 Re2 Ba2 Qd1 Bf7+ Kf8 Bae6 Ke7 Qgc7+ Rd7 Rb8 a8Q Rb7 Qa6 Na8 Qc6 Rb5 Qa6 Qc6 Rd5 Q8b7+ Kd8 Ra5 Rb5 Qcc5 Rd4 Qf8 Rc5 Qg7 Qa7 Qh7 Qa6 Qc8+
5nB1/n2bQ2r/1KP4B/3nQNNn/1b2p1q1/p6N/R1pq1nQ1/2k3Bq w - - 0 1 legal: proof: e4 b5 b4 c5 h4 cxb4 a4 g5 e5 gxh4 e6 b3 Ne2 fxe6 Ng1 e5 Bd3 e4 Be2 Nf6 Bf1 Ng8 c4 d5 c5 a5 Ra2 b4 Rc2 Ra7 Rc3 Rb7 Rc4 Rb5 axb5 dxc4 Ke2 Kd7 Ke3 Ke6 g4 Ke5 g5 h5 b6 c3 c6 a4 b7 c2 g6 h3 d3 h4 f3 h2 g7 a3 Be2 b2 Qf1 h3 Nc3 b1N Qf2 b3 Qg2 Nf6 g8N b2 Nh6 Nbd7 Nf5 Rh7 b8Q+ Qc7 Bd2 Nh5 Be1 e6 Bf2 Bb4 Bf1 Nf8 f4+ Kf6 Kd4 e5+ Kd5 e3 d4 Qg7 Bc4 Qg4 Ne4+ Kg6 Ng5 e4 Bb3 e2 Qe5 e1Q Kc4 Qed1 Kb5 Nc3+ Kb6 b1N d5 Qd2 d6 Nb5 d7 Na7 d8Q Nc3 Bg8 Be6 Qe7 Bd7 Ng3 Kh6 Be3 Kg6 f5+ Kh6 f6 Nd5+ Kb7 Kg6 f7 Kh6 N1e2 Kg6 Ra1 h1N Bg1 h2 Ra2 Nf2 Nf4+ Kh6 Nfh3 h1Q Qc5 Ne6 f8B+ Kg6 Bh6 Nf8 Qb8 Kf6 Qd8+ Ke5 Qb5 Kd4 Qe7 Kc3 Nf5 Kb3 Qa5 Kc3 Qc7 Kd3 Qce5 Ke2 Ka6 Kd1 Kb7 Kc1 Ka6 Ne3 Kb6 Nd5+
1bRr2Qb/B2pr2r/BB2pNnK/3P2nn/1p2Q2N/5n1k/1QN5/bb6 w - - 0 1 legal: proof: f4 f5 a4 h5 c4 a6 b4 c6 g4 hxg4 e4 Qa5 b5 axb5 e5 bxc4 Ra3 Qc7 Re3 c3 Re4 fxe4 f5 Qd6 Be2 Ra7 Bf1 Qf6 exf6 Ra8 Kf2 Kf7 Ke3 g5 d4 b5 h4 g3 h5 g4 Kf4 g2 Kg5 b4 h6 c2 d5 c5 h7 e3 a5 e2 a6 e1R a7 c4 Nh3 g1N Nd2 c3 Be2 g3 Nc4 g2 Qd2 Ba6 Nb2 Nc6 Qf4 Bd3 Nf2 Rd8 a8Q Bg7 Ng4 Ne5 Be3 c1B Qe4 c2 Nc4 Ng6 Na3 Bb2 Bb6 c1B+ Kh5 Bch6 Nc2 Nf3 Qa3 Ba1 Qb2 g1N Rh3 Kf8 f7 Bf4 Nf6 Bb8 Bf1 Ng5 Re3 Ba6 Rc3 N1f3 Rc8 Bc4 Be2 Ba2 Ba6 Bb1 Ba7 e6 Bb6 Ke7 f8B+ Kf7 Ba7 Rf1 Bfc5 Rg1 Bcb6 Ke7 Ng4 Bge5 f6+ Kd6 f7 Nf6+ Kh6 Nh5 f8N Ke7 Nge3 Kf6 Ng2 Rh1 Qe3 Kf5 Nh4+ Kg4 Qe2 Kh3 Qe4 Rg8 h8Q Rg7 Qg8 Re7 Nh7 Bh8 Nf6 Re1 Qc4 Re5 Qe4 Rf5 Ng4 Rff7 Nf6 Rh7+
1Q3Q1R/5KBr/br1N2R1/p5b1/2Pp1Qq1/2qb4/ppN1b2R/1kq2Nn1 w - - 0 1 legal: proof: f4 b5 h4 e5 b4 exf4 a4 bxa4 h5 c6 h6 gxh6 Kf2 h5 Ke1 h4 d4 Qg5 e3 Qg4 b5 Qg5 b6 Na6 Bb5 cxb5 c4 Nc5 dxc5 Qd8 Ke2 Ke7 Kd3 Ke6 Ke4 f5+ Kd4 a5 g4 h5 g5 d5 b7 b4 b8R f3 e4 b3 e5 h3 g6 a3 g7 f4 c6 Kf5 c7 f2 e6 f1B e7 a2 e8Q b2 Qc6 h2 Qca4 f3 Ne2 f2 Qdb3 h4 Nbc3 h3 Qb7 Nh6 g8Q Nf7 Qa6 Qd7 Nd1 Ne5 Rg1 h1Q Rb6 h2 Rh6 Qf3 Qa3 h1Q Rh2 Rh7 Q6d6 Rb8 Bh6 Be7 Bg7 Rb6 Rg6 Ba6 c8N Bg5 Ng3+ Kf4 Qh8 Bd3 Nf1 Qdg4 Nde3 Qhg1 Kc5 Ke4 Nc2 d4 Qb8 Qe3 Qf8 Nf3 Qc3 Be2 Qd2 Qc3 Qdf4+ Kd3 Kd5 Qh1 Nd6 Qhg1 Nd2 Qc1 Nf1 Ng1 Rb1 Qg3 Ke6 Qh4 Nfe3 f1B Kf7 Qg4 Ra1 Bg2 Nf1 Be4 Nfe3 Q1d2 Rf1 Qc1 Rf3 Kd2 Rfh3 Bd3 Rh5 Qe1 R5h3 Kc1 Nf1+ Kb1 Rg2 Qc1 Rh1 Rh3 Rf2 Rg3 Rh8 Rh3 Rh2 Rh7
4n1bq/2nR1pB1/1K1QnR1r/P1N3kB/n2Q1p1p/4b1p1/1B2n2Q/3R2n1 w - - 0 1 illegal: No proof kernel
b6N/1QbqkN1q/B2r1Rn1/2p4N/1p2p3/3Rp1KP/r1Qp2n1/rQ5R w - - 0 1 legal: proof: c4 h5 d4 c5 e4 f5 g4 fxe4 b4 Na6 b5 Nb8 b6 axb6 gxh5 Nc6 Ba3 cxd4 c5 Nb8 c6 Ra6 Bd6 Ra8 Bc5 bxc5 a4 d5 f4 e5 Kf2 g5 f5 b5 h3 e3+ Kg3 d3 a5 d4 a6 b4 f6 e4 f7+ Ke7 h6 g4 a7 d2 h7 d3 c7 Na6 Ra5 Qd7 Kg2 g3 Ne2 Bb7 c8Q Nc7 Nbc3 Nd5 Qc2 d1Q Nf4 d2 Ba6 Qh5 Ra3 Qh4 Nh5 Nf4+ Kf1 Bg7 f8R Be5 Rf6 Ng2 Nb5 Bc7 Rd3 Bc6 Qb7 Rd8 Qb6 Ba8 Qb7 Ne1 Qd1 g2+ Kg1 Qe8 Qa4 Nh6 Nd6 Nf7 Kh2 g1R Ng7 Ne5 Bc4 Ng2 Ne6 Ra1 Qc2 Ng6 Ng7 Rg8 h8N Qh7 Nh5 Qa4 Qc8 Bd5 a8Q Ne5 Ndf7 Rd6 Qg4 Bb7 Qgd1 Ng6 Qdb1 Qd7 Kg3 Re8 Qa6 Ra8 Qb6 R8a5 Ba6 Ba8 Qb7 R5a2
kq1Q4/bbQNNp2/6Q1/2P2B2/BN1nn2B/1RnKp1b1/1p1pbp2/r7 w - - 0 1 legal: proof: d4 g5 b4 a5 d5 axb4 d6 cxd6 Nh3 d5 Ng1 d4 f4 gxf4 e4 b5 Bc4 d5 Bf1 d3 Qg4 d4 Qf3 Ra6 Qe2 Rd6 Qd1 Rd5 exd5 h5 g4 Nd7 a4 Bb7 g5 Ba6 Ra2 Nb8 Rb2 Bc8 Rb3 Nh6 Rc3 Na6 Rc6 Ng8 Re6 Nb8 Re2 Nf6 Rg2 Ng8 Rg4 hxg4 Kd2 Kd7 h4 Kc7 c4 Kb7 g6 e5 a5 g3 h5 b3 c5 e4 h6 g2 d6 b2 g7 b4 a6+ Ka8 h7 f3 d7 b3 a7 f2 Qc2 Bd6 Nc3 b1B Rh3 b2 Na2 Nf6 g8N Bg3 Ne7 Bb7 Nb4 Nc6 Nf3 g1B Ne5 Qb8 d8Q B1h2 Qc7 Ba2 Bg2 Bc4 Nd7 Rc8 h8Q Bca6 Kd1 d2 Qhd8 Bc4 Qb1 Be2+ Kc2 d1N Bg5 Nc3 Bh4 d3+ Kd2 Nd4 Bf3 Be5 Bg4 Bhg3 Bf5 Bd6 Qa5 Rc6 Qac7 Ra6 Qg1 Bge5 Qg6 Ra1 Qcc8 Bc7 Ke3 Bb6 Qcc7 Na2 Rf3 Bg3 Kd2 Nc1 Kc3 d2 Rd3 e3 Kc4 Bh5 Rb3 Nce2 Kd3 Ne4 Qf8 Bc6 Qfd8 N2c3 Qe5 Kb7 a8B+ Ka7 Bb7 Bf3 Bc8 Ka8 Qec7 Ba7 Ba6 Bd1 Bb5 Bb7 Ba4 Be2+
4b1k1/q4q1p/1BrnN2P/QQQ1K1b1/q2r1rbb/3N1bR1/3n4/nBB4N w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 f4 g5 f5 a5 Ra3 axb4 Rf3 Qb6 Rf2 Qd8 Rf4 gxf4 Kf2 Kf7 c4 d5 h4 e5 g4 b5 a5 d3 h5 d4 c5 b3 f6 b4 g5 d2 a6 e3+ Kf3 e4+ Kg2 b2 h6 e2 a7 e1R c6 b3 c7 f3+ Kg3 d3 Kf4 f2 Rh5 e3 Rh1 e2 Ke5 Nd7+ Kd5 Be7 Rh4 Nc5+ Ke5 Bg4 c8Q Qb6 Qc2 d1Q Nd2 b1N Kd4 b2 Nc4 d2 Ke5 Nb3 Qc6 Rd8 a8N Rd4 Qb5 Na1 Nc7 Qa7 g6+ Kf8 f7 Bg5 Bg2 f1Q Rh3 Ne7 Be4 Nf5 Rg3 Nd6 Nh3 Rg8 Qc3 Qda4 Qca5 d1B Nf2 Nd2 Nh1 b1B Nb2 Qf2 Bc2 Rf1 Nd3 e1B Qc5 Ba2 Bb1 Bdf3 Qab5 Bae6 Qa5 Bd7 g7+ Ke7 f8B+ Kf7 Qcb5 Be8 Ne6 Rh8 Be7 Kg8 Bd8 Qf7 Bb6 Qg1 Rh3 Beh4 Rg3 Qf2 Bb2 Rc1 Ba3 Rc6 Bc1 Qa7 Qc5 Kf7 Qab5 Rf8 Qa5 Kg8 Qcb5 Rff4 Qc5 Kf7 g8Q+ Ke7 Qh8 Kf7 Qf6+ Kg8 Qe7 Ndb3 Qb7 Qfa2 Qba6 Nd2 Q6b5 Qf7 Qac3 Qaa7 Qca5 Qa4
R4Q2/KQ1pN2N/3b3q/3P1Rn1/1brnb3/1r1R1q2/1b2BQqk/4rnnN w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 Kf2 Ke7 c4 Kd6 h4 Ke5 e4 f5 a4 b5 a5 g5 d3 f3 Ke3 b3 h5 b4 h6 f4+ Kd2 g3 h7 g4 c5 g2 a6 f2 c6 f3 Ke3 g3 a7 Qb6+ Kd2 Kf4 e5 Nh6 c7 Bb7 c8R Nc6 e6 Rb8 a8Q Nd4 e7 Nf7 e8N Bd6 Rc4 Ng5 Rh3 Be4 Nc7 Rhc8 Nc3 b1Q h8Q b2 Qd5 b3 Qe8 Qa2 Be2 b1R+ Qc2 f1Q Qb7 b2 Nd1 f2 Nf3 g1B Kc3 g2 Rc5 Bh2 Rd5 g1B Qf8+ Kg4 Rf5 Bhe5 Qd2 Qa8 Kc4 Qg2 Qe3 f1N Qf2 Bgh2 Ra7 Bb4 Ra3 Qh6 Ra4 Nc6 Kb5 Bec3 Kb6 Bhd6 Ra3 Nd4 Nd5 Rc4 Ne7 Rc1 Ra4 b1N Ra7 Nbd2 Ra4 Nb5 d4 Bb2 d5 Nd4 Ra2 Qa3 Ra1 Qb3 Ra8 Qe3 Ka7 Qf4 Ng1+ N2f3 Rg3+ Kh4 Nh3 Ng1 Rd3+ Qfg3 Ne3 Qf3 Ng4 Re1 Nf6 Qg2 Nh7 Qf3 Qe3 Qgg2 Nf2 Kg3 Nh1+ Kh2 Qf2 Ba5 Qa6 Rb3 Qb7 Bab4
2nr1Br1/2b3R1/p3QqR1/Q4nb1/6qk/K3p2b/r1r1PN2/Q1rqB1RB w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Nd2 h4 Ne4 fxg6 Kd2 g5 Ke1 g4 Ng3 hxg3 Kd2 Kf7 c4 Kg6 Kc2 Kh5 f4 e5 h4 d5 b4 g5 Kb2 g2 c5 g3 b5 a6 b6 g4 c6 d3 c7 a3+ Kb3 d2 b7 e4 f5 d4 f6 e3 f7 a2 Qc2 d1R Rb1 a1B Qb2 d3 Qd2 Nd7 b8Q Qf6 Qb5+ Be5 Qc5 Nh6 Rb2 Nb6 Qc6 Be7 f8B Rb8 Nf3 g1R Qa5 d2 Ne1 g2 Nd3 g3 Qe6 Rg8 Nf2 Nf5 Rb1 Bd7 c8R Bc7 Ka2 Bed8 Ka3 Rb7 Ra8 Nc8 Ra7 Rb2 Rb7 Rc2 R1b6 Be7+ Rd6 Bed8 Bb2 Rdc1 Be5 d1Q Bc3 Rb2 Be1 Rcc2 Nh3 Kg4 h5 Kh4 h6 Be7 h7 Rh8 Rh2 Rh1 Ra7 g1R Bg2 Bed8 Bf3 Rg8 Rf2 g2 Be4 Rf1 Rb6 g1Q Rg2+ Rf2 Rg3 Rf4 Nf2 Rf3 Rg6 Qg4 Rab7 Rg1 Rd6 Rf4 Bh1 Rd4 Rg5 Qh6 Rg6 Bg5 h8Q Rdd2 Qhc3 Qg7 Rd4 Qf6 Rf4 Rd3 Rf3 Rf1 Rg3 Rd5 Rg1 Rd3 Qeb6 Be6 Qbb3 Rd8 Qa2 Bd7 Qe6 Bc6 Qd2 Bd6+ Rb4 Bg2 Qc1 Qdd4 Qa1 Bh3 Bd2 Rfc1 Be1 Bg3 Rb3 Qd1 Rb7 Be5 Rd7 Bc7 Rdg7 Ra2+
Q6B/2qQ4/N1bq1QrR/1r1pRrr1/n2r4/n1qPb1k1/N3p3/2N2RKb w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 Na3 b3 Bb5 c6 Nb1 cxb5 Rh2 b4 Rh3 Ra6 Rh1 Ra8 Kf1 Kf7 a4 Kg6 f4 Kf5 c4 b5 c5 e5 g3 d5 d3 h5 a5 b2 a6 b3 c6 b4 c7 h3 a7 h2 Qd2 Kg4 f5 e3 f6 e2+ Kf2 e1Q+ Kg2 e4 f7 e3 Ra4 h4 Qc3 e2 Bd2 Bd7 c8N Qc7 Bh6 Bc6 Nd2 b1R Qa1 b2 Be3 Nd7 Bf2 Ne5 Ra6 b3 Nd6 Rh6 Ne8 Bc5 f8R Be3 Nh3 Nc4 Ng5 Rg6 Nge4 Ne7 Nc3 Na3 Rf5 Nc8 Na2 Nb6 Rf1 h1R Re5 Na4 Bg1 Qd6 Nc7 Rf8 a8Q Rf5 Qc8 Rd1 Qd7 b1R Rb6 b2 Nb3 Qc3 Nbc1 Re1 Na6 Qc7 Bf2 Rh2+ Kg1 h3 Qd8 Kf3 g4 Kf4 g5 Rg2+ Kh1 Rg4 Qd7 Kf3 Kh2 Rd4 Kg1 h2+ Kh1 Rg8 g6 Rd1 Bg1+ Kg3 g7 Rg5 N2b4 Rf8 g8Q Rf5 Nba2 Qd6 Qa8 Rg6 Rb8 Re1 Rh8 Rfg5 Rff8 Rf1 Rh6 Rff5 Nb3 Rd1 Nbc1 b1Q Qb2 Qa1 Qb6 Qc2 Qbd8 Qac3 Qf6 Kg4 Kg2 h1B+ Kh2 Rf1 Rf7 Rff4 Bf2 Rb4 Kg1 Rfd4 Rf8 Rb5 Rf7 Bf4 Be3 Kg3 Bd2 Qa5 Bc3 Qac7 Qfh8 Rc4 Re8 Re5 Rf6 Bd2 Rf1 Ref5 Qf8 Rcb4 Bh8 Rd4 Qf6 Qc3 Re5 Be3+
Rrb1nR1K/3pn1N1/3PN3/p5b1/1k1r2rQ/bq2n2r/3NQB1R/rQ2r3 w - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 b5 f4 bxa4 b5 e5 b6 exf4 e3 c6 Bb5 cxb5 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kh5 a5 c4 f5 d4+ Kb4 g4 f3 e4 f2 c5 f1R g5 h3 b7 f4 e5 a3 d5 a2 e6 f3 g6 f2 g7 h2 c6 Nf6+ Kh6 Re1 e7 f1N e8N Ne3 c7 Rg8 Nf3 Nc6 b8Q Ne7 Rg1 h1R+ Nh4 Rh3 Rf1 Ra6 Qe2 Rd6 Kg5 h5 Ng2 h4 Kh6 Rg3 Rh1 h3 Nf4 h2 Nd2 Rg2 Bb2 Rg4 Rc1 a1B Bd4 Bb2 Ne6 Ba3 Rc2 Ra1 Rf1 Bc1 Rf2 h1R+ Rh2 Re1 Rc6 Rg3 Ra6 Rf3 Ra8 Rh3+ Qh5 Ka3 Bb6 b4 Qh4 b3 Ba7 b2 Qb5 b1R Qe2 Ne4 Kh7 Rb8 Bb6 Kb4 Bd4 Bb7 c8Q Qb6 Qc2 Bc8 Qa2 Qb5 Bb6 Qa4 Qb1+ Qb3 Ba7 Rc6 Bb6 Rc4 d6 Rd4 Ba7 Ba3 Bb6 N7d5 Ba7 Be7 Bb6 Bg5 Ba7 Rf8 g8R Rf4 Kh8 Nef6 Rf8 Rg4 N8g7 Ne8 Bb6 Ne7 Ba7 Rdf4 Bd4 Nf1 Bg1 Ne3 Bf2 Rd4
5Qqr/2r2Q2/1B1KNbBq/rQp5/3Nq1nq/BqP1n3/2bq1pk1/2N4R w - - 0 1 legal: proof: b4 d5 a4 a5 e4 dxe4 g4 axb4 f4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 Ke2 Kd7 h4 Ke6 d4 Kf5 d5 b5 d6 e5 d7 c5 a5 g3 a6 Kg4 c3 f5 a7 b3 h5 b4 h6 f3+ Ke3 f4+ Kd2 b2 h7 e3+ Kd3 e4+ Kc4 e2 Kd5 e1R g6 e3 g7 b3 Qe2 g2 Rh4+ Kg3 Nh3 g1Q Nf2 Nh6 g8Q+ Bg7 Nd3 f2 Bh3 f1Q Nf2 f3 Rf4 Nc6 Qf8 Qh4 d8B Bf6 Ng4 f2 Bb6 Ne7+ Kd6 Nd5 Qe7 Bf5 Qf7 Bc2 Nh2 Ng4 Qb5 e2 Nd2 b1Q Nhf3 b2 Nb3 Nde3 Nfd4 Qa2 Bg2 b1Q Be4 Qfh3 Bg6 Kg2 Ba3 Qd1 Re4 Qd2 Nc1 Qb3 Re5 Rac8 a8N Rc7 Rh5 Rf1 Rh6 e1Q Rh5 Qee2 Rh6 Qed3 Rh5 Qe4 Rh6 Rhc8 h8Q Qhh1 Qhg7 Rh8 Qgf8 Q1h3 Nd3 Ra1 Nc1 Ra7 Rh7 Qh6 Nc7 Q3h4 Ne6 Rc7 Bb2 Ra5 Ba3 Qg7 Rh5 Qg8 Rf5 Qh6 Rh5 Qgd1 Rh4 Qdf3 Rh1 Qfh3 Ne2 Q3h5 Nc1 Qh4
2qn1R2/1np1Q2R/1B2K3/2pNb2r/3QN3/2P2brQ/Rnkn4/rb3Nrn w - - 0 1 illegal: No possible last move
2N3bK/2pQ1b2/2b2qRR/1kn1rNb1/2n5/1rb2RrQ/p1PrB2Q/2q4N w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 f4 b5 b3 bxa4 Bb2 h6 Bf6 gxf4 g5 Na6 g6 Nb8 Bg5 hxg5 Ke2 Kd7 h4 Kc6 d4 f5 d5+ Kb5 b4 a5 d6 e5 g7 g4 h5 e3 Kd3 f3 h6 a3 h7 f4 Ke4+ e2 d7 f2 Kf5 f3 Kg6 a4 Rh4 a2 Rh1 e4 Qc1 g3 Kf7 a3 Rh6 g2 Qf4 e3 Qh2 Na6 Kg6 Nf6 g8N Nd5 Qe5 Rb8 Rh1 Be7 Kg7 Bg5 Nh3 g1R Qf4 Rg3 Ne7 Nb6 Nf5 Nc5 Nd2 Bb7 Nc4 e1Q Be2 f1B Nf2 Bc6 Rh6 Qc1 Nh1 f2 Qe5 Rf8 h8Q Qf6+ Kh7 Bh3 d8Q f1B Qd7 Rfd8 Rb1 a1B Rb3 a2 Ncd6+ Ka4 b5 Bc3 Rg6 Nc4 b6 Bhg2 b7 Bd5 Qf4 Bf7 Nc8 Ka5 Ra3+ Kb5 Qh4 Bg2 Qh3 Bgd5 Ra6 Ra8 Ra3 Ra6 b8R+ Rb6 Rba8 Rb7 R8a6 Rb8 Bg4 e2 Bf3 e1R Be2 Bb2 Rf3 Bc3 Qg7 Bg8+ Kh8 Bdf7 Qd2 Rd5 Qf4 Red1 Qfh4 Re5 Qh2 Bcd5 Q4h3 Rd2 Rd6 Bc6 Re6 Ka4 Rd6 Rb3 Rh6 Qd8 Rdg6 Kb5 Qh7 Be6 Qe7 Bef7 Qd7 Qf6+
1q3KNr/Bk1bQb2/1q1Q1p1Q/2q5/3R1q2/1p2n3/rPR1rn2/bN2Rb1N w - - 0 1 illegal: Other
B1QKNk2/n1bnr3/Q1q2p1q/4B1N1/bp1rBP2/4Q3/q1rb2Nb/R4r2 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 g5 c5 g6 c4 Ra3 hxg6 Kd2 g5 Ke1 g4 Rd3 cxd3 Kd2 d5 e4 g5 h4 b5 c4 g3 f4 f6 c5 b3 h5 b4 e5 b2 h6 g4 a5 g2 a6 g3 c6 Qc7 a7 Bd7 h7 Ne7 e6 Nc8 Nc3 b1Q e7 Qa2+ Ke1 d2+ Ke2 d3+ Kf3 d4 Nge2 g1B Ke4 g2 Ng3 Bh2 Qe1 d1Q Qe2 g1B Bg2 d2 Nd5 d3 Bb2 Be3 Be5 Qc1 Rf1 d1R Qf2 Rg8 h8Q Bd2 Qe3 Rg7 Qh5+ Rf7 Qhe2 Qcb1 Rg1 Rf1 Bh1 Qd6 c7 Ba4 Kf5 Qc6 Ne4 Nd7 Ng5 Rb8 a8B Na7 Bf3 Rc8 Be4 Qe1 Rh1 Qh4 Kg6 Qh6+ Kf5 Rd8 c8Q Rc1 Rd1 Rc2 Ra1 Rg7 Nf3 Kf7 e8N Bd6 Ng5+ Kf8 Ke6 Bc7+ Nd6 Bc3 Qf1 d2 Qfa6 Qb5 Ne8 d1R Bg6 Bd2 Be4 Bb6 Kd6 Rf1 Ke6 Re7+ Kd6 Bc5+ Kc7 Qbc4 Qb3 Qc3 Ne3 Qc4 Ng2 Bb6+ Kb7 Bc7 Qe3 Qc5 Qb8 Nb6 Qc3 Qh7 Qe3 Rd4 Qd8 Nd7 Qb8 Nb5 Kc8 Qh6 Qbb7 Qc6 Qb8 Bd6+ Kd8 Na7 Qbc8 Bc7+
1n1b4/2QqQB2/pR2R1nk/rpb3q1/3n1B2/2Q2R1K/rPb3B1/3nrr1N w - - 0 1 illegal: No proof kernel
b1Q5/pbb2k1n/6N1/2nR1K2/2B3Qp/NbpR3P/nqRr1Q2/1br1Nq2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 f5 b5 f6 bxa4 b3 exf6 Ra3 f5 Ra1 f4 Ba3 g4 Bc5 g3 Bf2 Be7 Qc2 gxf2+ Kd1 Bb4 Kc1 Bc5 Qd1 Bf8 Kc2 h5 d4 c5 g4 f5 e4 a3 d5 f3 g5 a2 d6 h4 b4 c3 Kd3 f4 g6 c4+ Kd4 c2 Ke5 c1N h3 Bb7 b5 Nf6 b6 Nbd7+ Ke6 Nh7 e5 Rc8 g7 Nc5+ Kf5 Kf7 d7 Bd6 g8N Bc7 Ne7 Qf8 d8R Qg7 Be2 f1B Ng6 f2 Rh2 f3 Rd3 Rhd8 Na3 Bg2 Qa4 Ba8 b7 f1B b8Q f2 Qb6 Bgb7 Nf3 Rd6 Rb1 a1Q Rb5 Na2 Ne1 Qb2 Qd1 Qf8 Ra5 Bfg2 Bf1 Rdd8 Qg4 Bgd5 Be2 f1B Qf6+ Ke8 e6 Rd6 e7 Bg8 Rg3 Rd2 Rd3 Bfg2 Bf1 Bgf3 Rf2 Bd1 Re2 Bc2 Rg2 Bb1 Be2 Nd7 Rd5 Nc5 Rh2 c3 Rg2 Rd8 Bf1 Rd1 Rc2 Rc1 Be2 Qg7 Qfd4 Kf7 Qf2 Qh6 Bf1 Qe3 Be2 Qg3 Bf1 Qg2 Be2 Qf1 e8Q+ Kg7 Qe6 Bf7 Qc8 Kg8 Rd6 Bb3 R3d5 Kf7 Bc4 Re8 Rd8 Re2 R8d6 Rd2 Rd3+ Kg7 R6d5 Kf7
N1Bbn1b1/n4bQp/N3rB2/4b1pQ/Q3p1P1/N1kq1rnR/2B5/q1K2b2 w - - 0 1 illegal: No proof kernel
k3N1qn/B5p1/R1q3b1/1n1q1bPQ/B2rb1p1/bbQ3KQ/3B2pr/6NN w - - 0 1 illegal: No proof kernel
Rq3B2/1bQQ1K2/1Q1qnpp1/rn2B3/4pP2/q1q4B/3N2rk/3nbRRb w - - 0 1 legal: proof: g4 c5 e4 a5 b4 h5 e5 hxg4 e6 c4 Nc3 axb4 Ne4 dxe6 Nc5 e5 Nb3 cxb3 Bc4 e4 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 b5 Kg5 Ke5 c4 e3 a4 g6 h4 g3 a5 e2 f3 e1Q d3 g2 c5 b2 a6 b1N c6 b3 c7 b4 a7 b2 h5 b3 h6 Qc3 h7 f6+ Kh4 Nc6 Ra4 Na3 Rg4 b1Q Bb2 Nh6 Kg3 Bb7 c8Q Nd4 Qc7+ Qd6 f4+ Kf5 Ba1 e5 Nf3 b2 Nd2 g1Q+ Bg2 Qf1 Bh3 Ne6 Qb3 Qfd1 Qbb6 Qa4 Rf1 Nb5 Kf2 Qaa3 d4 Be7 Rgg1+ Ng4+ Ke2 Rhb8 h8B Bh1 d5 e4 Bg2 Nf2 Bg7 Kg4 Bf8 Kg3 Bh3+ Kh2 Qd7 Nd1 Qbc7 Qdb4 d6 Rc8 Qb6 Rc5 Qdc7 Rg5 d7 Qd6 d8Q Rg4 Qdd7 Rg2+ Rf2 Rb8 a8R Rb7 Qcc6 Ra7 Qcc7 Ra5 Qcb8 Qbc1 Q8c7 b1B Bb2 Qcb4 Bc3 Ba2 Be5 Ndc3+ Ke3 Bd5 Rff1 Bb7 Qcc8 Qb8 Qcc7 Qd6 Qcd8 Ng7 Q8c7 Qca1 Nc4 Qc6 Qg4 Bb4 Qgd7 Nd6 Kd4 Nd1+ Nb2 Qac1 Nc4 Be1 Nd2 Q1c2 Qb5 Qa6 Qbc6 Nb5+ Kd5 Nf5 Ke6 Nfd4+ Kf7 Ne6 Qc5 Qd6 Q5b6 Qcc3
KNRq1r2/NQ1bp3/1qbp1nB1/3rQ3/Qp1P1R1r/1q1qb3/1n1k4/2N4R w - - 0 1 legal: proof: h4 c5 e4 a5 b4 f5 h5 fxe4 h6 c4 Bb2 axb4 Nh3 c3 Qc1 cxb2 Ng1 gxh6 Qd1 h5 Bb5 h4 Be2 Bh6 Bf1 Bf8 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kd5 Kf4 c4 h5 a4 b5 d4 b3 g4 e3 a5 e2 c5 e1Q c6 h3 c7 b4 a6 d6 g5 h2 a7 h4 g6 h3 g7 Qc3 Bd3 Rh7 Bg6 Nd7 Na3 b1Q Nb5 b2 Qa4 Qbd3 Rf1 Nc5 Kc6 Nf6 g8Q b1Q Qe6 Rh4 Ne2+ Kf3 Qe5 Bd7+ Kb6 Bh6 Nc1 Rc8 a8R Be3 Ka7 Qbb3 Rb8 Rh5 Ka8 Qcc4 Na7 Qa6 Qa5 Qb6 Qa4 Kg2 f4 Rg5 Qa3 Na4 f5 Nb2 Qa4 Rh5 Rf4 Rg5 Rhf1 h1R Rd1 h2 Re1 Ng8 f6 Rh5 f7 Nf6 f8N Rh4 Re4 Kf3 Rg4 Rg1 Rd1 Rg2 Rh1 Rc2 Re4 Rc5 Rg4 Rd5 Re4 Qe8 Rg4 Rd8 c8Q Kf2 Qc7 Rc8 Qb7 Qed8 Na2 Ke2 Nc1+ Kd2 Rf4 Bb5 Nd7 Bc6 Rg1 h1B Rgf1 Be4 Rh1 Bf5 Ne2 Qg8 Nc1 Rf8 Rc8 Qh8 Nb8 Bfd7 Rf3 Rf7 Rff1 Qhd8 Rf4 Rf8
1R4qR/Q1K2N2/1q1Q1p2/1Rp1n1qq/n4N2/1pPbkb1r/2rN4/1BbQ2r1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 e4 dxe4 g5 h6 f5 g6 Bb2 gxf5 g6 f4 Bf6 Ra4 Bh4 Ra8 Bg5 hxg5 Ke2 Kd7 d4 Kd6 a4 Kd5 h4 c5 g7 e5 a5 b5 c3 f6 a6 e3 Kd3 f3 h5 g4 h6 b3 h7 b2 a7 b4 Ne2 f2 Bh3 f1Q Na3 b1B+ Nc2 g3 Ra5 b3 Rb5 g2 Rb4 g1R Rb7 Bg4 Rb5 Bf3 Rh2 Nh6 g8R Nf7 Bd7 Bh6 Bc8 Nd7 Rg5 Nb6 Rg8 Na4 Bf5 Qg2 Bg6 Qg5 Rh5 Qa5 Rgb8 Qa6 Rh1 Ba2 Na3 Bb1+ Qc2 Qh5 Nc4 Bf4 Nd2 Qg5 Ng3 e2 Nh5 e1Q Rh2 Qeh4 Be4+ Kd6 Kc4 Qhg3 Bg6 e4 d5 Ke5 d6 e3 d7 e2 d8Q e1Q Qd1 Qe2+ Bd3 Be3 Nf4 Qg8 Qb6 Q3g5 Rh1 Qh2 Bg6 Qhh5 Qc6 Bf5 Qb6 B5g4 Bb1 Bf5 Rh4 B5e4 Qd6+ Kf5 Rf8 Re8 a8Q Re5 Qa7 Re6 Nf1 Bc1 Rb8 Bc2 Rh3 Ke4 Nd2+ Ke3 Rh1 Bf5 Rh2 Re4+ Kd5 Ne5+ Qf7 Qf8 Qa7 Bg6 Ke6 Qg8+ Ke7 Rd4 Rh1 Bd3 Rh2 Nf7 Kd7 Ne5+ Kc7 Re4 Nh3 Rh4 Nf4 Rh3 Rh1 Qe6 Rh2 Re8 h8N Qeg8 Nf7 Rd8 Qe7 Rd5 Qd6 Rd4 Ne2 Rdg4 Nf4 R4g2 Ne4 Rc2 Rh1 Rhg3 Rh4 Rh3 Nd2 Qhg4 Rh6 Q4h5 Rh8 Qb6+
4n1RB/2kp2N1/qp2n3/1r2q1Rb/q2P2NR/bQ3p1N/1Q1Kb2r/1q2r1Q1 w - - 0 1 legal: proof: h4 c5 f4 g5 b4 gxh4 f5 cxb4 f6 a5 e3 a4 Ba6 exf6 Bd3 f5 Bc4 f4 Bb3 axb3 g4 h5 d4 f5 a4 b6 c4 h3 a5 h4 c5 h2 g5 h3 g6 b2 c6 b3 g7 f3 c7 f2+ Kd2 f1Q e4 f4 a6 f3 a7 Qa6 e5 Nf6 g8Q Nc6 e6 Qe7 Ra4 Nd8 Na3 b1Q Qc2 b2 Ra5 Rh5 Qd3 Rb5 Qb3 Qd6 e7 Ne6 Nc2 Qe5 Qg4 Qa1 Qg5 b1B Ne3 Bg6 Ng4 Qa4 Qb2 Rb8 a8Q Bh5 Qd5 Bb7 Qdb3 Be4 Qh6 Bd3 Qg7 Rd8 c8R Be2 Ra8 Rb8 Kc2 Rd8 Bg5 Rb8 Kd2 Rc8 Ra7 Rc1 Rc7 Re1 Rc6 Nd5 Bf6 Ndc7 Qg5 Kf7 e8N Ba3 Ng7 Ne8 Qge3 Kf8 Rc8 Kf7 Bd8 Kf8 Bc7 Ke7 Bd8+ Kd6 Bf6 N8c7 Rg8 Ne8 Nf5+ Kc6 Bh8 Kc7 Ng7 Bd3 Ne2 Bc4 Nf4 Be2 Rf1 h1Q Qg1 h2 Nh3 Qg2 Rf2 Qf1 Rg2 h1R Rh2 Be7 Nf4 Ba3 Rh4 Rh2 Nh3 Qg2 Ngf2 Qg6 Ng4 Rb4 Rb5 Qb1 Rd5 Qee4 Re5 Rb5 Rg5 Qe5
B5q1/Qp2k1bK/6n1/Q2Rbrp1/rbr1QNP1/1B2bN2/2N1pB2/r4bn1 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 g4 f5 Ba3 fxe4 Bc1 h5 Ra3 h4 Rg3 hxg3 Ke2 c5 Ke3 g5 d4 e5 f4 b3 h4 c3 d5 g2 f5 b2 a5 c4 a6 c2 d6 c3 f6 Nd7 h5 Bg7 a7 Ne7 h6 Rf8 h7 Ng6 Na3 b1R h8Q Ra1 Bd2 c1B Nc2 Bb2 Qe2 Kf7 Nf3 g1B+ Qf2 Ke6 f7 Ra4 Nb4 c2 Qh7 c1R Be1 Rc4 Nc2 Ra1 Be2 Qe8 Bd1 Raa4 Ke2 e3 Kd3 e2 Rh2 Bd4 Ke4 Bc3+ Qd4 Be3 Bf2 e1B Rh3 Ba1 Rh6 Bb4 Rh3 Nb8 d7 Ke7 Kf5 e4 Rg3 Nc6 Qb6 Rh8 f8N Be5 Ne6 Qg8 Qh1 Ra1 Qe1 Rh1 Nf4 Rf1 Rg2 Bed2 Qe2 e3 Qd3 Bc1 Qe4 e2 Rg3 Be3 Qbd4 Na5 Qb6 Nb3 Rh3 Nd2 Rh6 Nh8 Rd6 Ng6 Rd5 Ra4 Ncd4 Ra1 Bb3 Ra4 Nc2 Rfa1 Nfd4 Nf3 Qa6 Ng1 Nf3 Rb8 a8B Kf8 Ne6+ Kf7 d8Q Bd7 Qdb6 Ke7 Qba7 Bc6 Qa5 Rc8 Nf4 Rd8 Rd3 Rd5 Rd4 Rdc5 Rd5 Qh7 Rd2 Qg8 Qd5 Bc7 Nh4 Ne5 Qd3 Bf3 Qe4 Bg2 Nf3 Bf1 Qc6 Nf7+ Kg6 Rf5 Qe4+ Bce5 Rd5 Nh8+ Kh5 Bf6 Kh6 Ng6 Nd3 Qf7 Nf4 Bg7+ Kh7 Qg8+
knqK1b1R/2BnR3/N1bp2rb/n4R1p/B1bP1p2/2Q5/2n2B2/3Qbr1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 b5 c5 Nc3 e5 Nd5 exf4 Nb4 cxb4 Kf2 f5 Kf3 h5 e4 a5 c4 b3 g4 h3 e5 h2 d3 a3 g5 d6 e6 a2 e7 Kd7 e8R Kc7 c5 Kb7 g6 a4 b6 b2 g7 b1N Re2 a3 Be3 Qe7 Bf2 Nf6 g8Q Nfd7 Nh3 Rh6 Qg2 Rg6 Ng5 Qf7 Rg1 h1B Re7 Ra4 c6+ Ka8 c7 Ba6 c8Q Bc4 Ne4 Nd2+ Ke2 f3+ Ke3 f4+ Kd4 Ra7 Nc5 Nb3+ Ke4 Ra4 Na6 Na5 Qh2 Rb4 Rg5 Rb1 Rf5 Rc1 Rb1 a1B Qh4 Be5 d4 a2 Be2 Bg2 Qhh1 a1B Bf1 Bc3 b7+ Ka7 Bd3 Beg7 Bc2 Be1 Ba4 Bh6 Qc6 Ba2 Qc3 Bc4 Rc5 Qh7 Kf5 Qg7 Rc8 Qh7 Rb5 Qg7 Bh4 f2 Rd8 f1N Bf2 Bc6 Rd5 Rg5+ Ke6 Ne3 Rc8 Nc2 Rce8 Be2 Rf5 Rg1 Rc8 Qg2 Kf7 Bc4+ Ke8 Rf1 Kd8 Ra1 Qcd2 Ra3 Qb4 Rg3 Qc3 Rg6 Nb4 Na6 b8B+ Ka8 Bc7+ Nab8 Na6 Qd5 Bb6 Qb5 Bc7 Qb7 Ke8 Bfg7 Re4 Nb3 Ke7 Na5 Rh8 Bf8+ Kd8 Bf7 Ree5 Bc4 Re7 Qc8+
R2R3B/QK1Q4/1R1nn1n1/1p2Q1r1/pP1N1r2/bq1bnb2/1pNb4/3q1kN1 w - - 0 1 illegal: No proof kernel
2rBkbn1/r7/2q3N1/N3b1p1/pQb4K/PnrpqB2/2b4B/Q2r1QRN w - - 0 1 illegal: No possible last move, all moves rejected
3Nn1Q1/1bpq2Q1/p2BRR1n/1R1NQ3/4nb1n/1K2Nkq1/Pr1rpq2/2q5 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 h5 Nc3 h4 Be2 h3 Bf1 fxg6 Bg2 hxg2 Nb1 g5 Qf3 g4 Qe2 Bd7 Qd1 Bc8 d4 Kf7 Kd2 Ke6 Kc2 Kf5 h4 e5 f4 g5 b4 g3 d5 a6 h5 c3 d6 e3 d7 Ke4 h6 g4 b5 e2 b6 e1Q h7 Nh6 f5 Bb7 f6 Qf2+ Bd2 Bd6 Nf3 g1Q f7 g2 f8R g3 Kb3 c2 Rf6 c1Q Rf7 Qe7 d8Q Nd7 Nd4 Nf6 Qf1 Qd7 Nc2 Kf3 Ne3 e4 Qg8 Rd8 Bb4 Bf4 Qe1 Ne8 Nc3 Qh2 Qg7 g1N Rf6 g2 Bd6 Ne2 Ncd5 g1N Rb1 Qhg3 Qa5 Rg8 h8N Nc3 Nf7 Rf8 Rh5 Rh8 Re5 Rh7 Nf5 e3 Ree6 Ne4 Qc3 Rh8 Qe5 e2 Nfe3 Rg8 Qh7 Rg4 Qh8 Nh3 Rb2 Nhg5 Qg7 Rh4 Rc2 Rh1 Rc5 Rd1 Ra5 Rd2 Rb5 Rc2 Bb4 N4d6 Ba3 Ndf5 Bd6 Rb8 Nd8 Ne4 Ng2 Nh4 Nge3 Bc6 b7 Rc8 b8Q Bb7 Nc6 Rd8 Bc5 Qc8 Be7 Rd6 Nd8 Qd7 Qa8 Rd2 Qc8 Rc6 Bd6 Rcc2 Qg8 Qdg7 Qd7 Qh7 Qe7 Qhg7 Qef8 Qd7 Qfg7 Rb2+
r5r1/1Q1BppN1/2B3pn/2b1K3/n1n1Rn1k/pQB2r2/3N1Pbq/3Qn1N1 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 a4 bxa4 e5 hxg4 b5 d6 Ra3 dxe5 Rb3 e4 Rb4 cxb4 Ke2 a5 Ke3 g3 Kf4 a3 c4 a2 d4 a1R h4 g6 c5 g2 d5 b3 b6 e3 d6 a4 h5 e2 h6 e1N h7 b2 b7 Nh6 c6 Bh3 c7 Nd7 b8Q Bg7 c8B Nb6 d7+ Kf8 Nc3 b1N Bb7 Nd2 Bd3 Ra3 Ne4 Rg8 h8Q Bd4 Bc6 Bc5 Qb2 Ndc4 Qbb3 Kg7 Nd2 Kf6 Qb7 Qc7+ Ke4 Kg5 d8N Kh4 Bb2 Qh2 Ne6 Be3 Ng7 Bc5 Qa2 Rc3 Qab3 a3 Be2 Rd3 Bc3 Na4 Bg4 Rg3 Bgd7 Rf3 Ne2 g1N Kd5 Bf1 Ke4 Nh3 Ng1 Nd6+ Kd5 Nf4+ Ke5 Nc2 Nh3 Bg2 Re1 Raf8 Re3 Ra8 Re4 Ne1 Ng1 Nc4+
r3b1kr/4p2R/N1b4p/3nB2P/2bQ1p1R/QR1Br2Q/K1p3n1/B1q1b2n w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Nc3 d5 Nce2 dxc4 Nf4 gxf4 h4 Kf7 d4 c5 Kd2 b5 Kc2 h6 Kb1 e3 a4 b3 g4 e2 d5 e1R h5 b2 a5 b4 d6 c3 a6 c2+ Ka2 c4 d7 c3 a7 Nf6 g5 Ba6 g6+ Kg8 g7 Qc7 d8Q Ne4 f6 Nd7 Qc8 Ng3 Qd4 Nb6 Qh3 Re3 Ne2 Nd5 Rb1 Qc8 Rh2 Nh1 Ng3 Bb5 Bd2 Bc6 Bd3 Qc7 Ne4 b3+ Ka3 c1N Nc5 Qc8 Na6 Qc7 Be2 Nd3 f7+ Kh7 g8R Bg7 f8B Ne1 Bb5 Ng2 Bc1 Bf6 Bg7 Bh4 Be5 Be1 Rb8 Be8 Bd3+ Kg8 Bd2 Bf2 Rg1 b1B Rb5 b2 Rb3 Bc2 Ka2 Be1 Bc1 Bd1 Bd2 Bf3 Bc1 Rd8 a8Q Be4 Qaa7 Ra8 Qac5 Bf3 Qa3 Qc5 Bd2 c2 Bb4 Qa5 Bbd6 Qd2 Bg7 Qc1 Bde5 Nh4 Rg6 Ng2 Rf6 Be4 Rf7 Bf3 Qe6 Be4 Rh4 Bf3 Qh3 b1B+ Ka1 Qd2 Bgf6 Ba2 Rh7 Be4 Rb7 Bc4 Rb3 Qc1+ Ka2 Bcb5 Qda4 Bf3 Ba1 Bbc6 Bfe5 Be2 Qd4 Bf1 Bf5 Bfb5 Bd3 Bc4
1r1QNqr1/1Nn5/1NQbB3/RQ1pp3/1n1P4/K1B2bb1/1p2p3/n2kBq1b w - - 0 1 legal: proof: e4 a5 b4 axb4 a4 h5 g4 hxg4 e5 c5 e6 c4 Ra2 fxe6 Ra3 e5 Rg3 e4 Rb3 cxb3 f4 Kf7 c4 Kg6 h4 Kf5 d4 g5 Kd2 e5 c5 b5 a5 d5 a6 e3+ Kd3 b2 Kc2 Ke4 Kb3 e2 c6 g3 a7 g4 c7 g2 h5 g3 f5 Ne7 f6 Nec6 f7 Bd6 f8B Bg4 c8Q Bf3 h6 Na6 h7 Rb8 a8N Rg8 h8Q Nc7 Nd2+ Kd3 Nb6 b1B Nh3 g1B Ng5 g2 Nf7 Bh2 Bb2 g1Q Bh3 Bg3 Be6 Qf1 Ne4+ Ke3 Nf6 Bbe4 Qa1 Kd2 Qa5 Kd1 Ne8 Qe7 Bh6 Qf8 Rh3 Bh1 Bc3 Bef3 Kb2 b3 Nd8 Nb4 Ka3 b2 Nb7 Nca6 Qc6 Nc7 Bhd2 b1N+ Kb2 Na3 Be1 Nac2 Qa6 Na1 Ka3 Qg2 Qf6 Qf1 Qd8 Na2+ Kb2 b4 Qab5 b3 Rh7 Nb4 Ka3 Bg4 Rf7 Bh5 Rf3 Bg4 Re3 Bgf3 Rd3+ Kc2 Rd2+ Kc1 Ra2 b2 Ka4 Nac2 Kb3 Kd1 Ra5 Na1+ Ka4 Kc1 Ka3 Kd1
2K2r1k/b7/1Nbqp2B/2p1rp2/1rqp1N2/3rN1R1/R2QnP1Q/nR2Qb2 w - - 0 1 illegal: No proof kernel
K1n2R2/4p1p1/Bp4q1/r1r1k1b1/1B1N1RQB/3qnQRn/p1bb1nP1/7Q w - - 0 1 illegal: Other
3N3n/QpR3R1/NPpkn3/b1q4q/n1R2rpB/1Qbbr3/2pp2KQ/6N1 w - - 0 1 illegal: No proof kernel
3r4/bN3rBR/K2BBb1N/3b2r1/k2r3Q/2BpP2q/1rn1N2q/4B1r1 w - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 b5 c4 e5 a5 exf4 a6 Qc7 cxb5 c4 b4 c3 b6 Nc6 b5 Qd8 Ra5 Nxa5 d5 Nb7 d6 Bxd6 axb7 Bf8 b8B h5 g4 d5 b7 Kd7 e3 f5 Ke2 a5 Kd3 a4 g5 h3 g6 c2 b6 Kc6 g7 Kb5 Qf3 d4 Qd5+ Bc5 Bd6 h2 b8B f3 b7 a3 Be7 f4 Qa2 h4 Bg2 h3 Bf1 f2 Qa1 f3 Bf4 a2 b8B Ka4 Kc4 d3 Bd2 c1R+ Bc3 Nh6 g8N Qc7 Bfg5 Ra5 Ne2 Ba7+ Bc5 Be6+ Kd4 Nf5+ Ke4 Nd4 Nd2 Rb1 Bg2 f1R Nc4 f2 Bf8 Nc2 Bfg7 Rb2 Nd6 Rg1 Nb7 f1R Qe1 a1B Qh4 Rf7 Nh6 Rd8 Bf3 Qc8 Bg4 Bd5+ Ke5 Rab5 Be6+ R5b4 B5f6 Rd4 Bd6 Rg6 Be1 Qd7 Rf1 h1R Rf2 h2 Rf3 Rhg1 Rh3 h1Q Rh2 Bg2 Rh3 Re4+ Kd5 Qh2 Bd4 Reg4+ Kc4 Be4 Bdc3 R6g5 Ba5 Rb1 Bad2 Bf6 Bc3 Rb2 Rg3 Bb8 Rh3 Bd5+ Kc5 Kb3 Kb6 Ba7+ Ka6 Rd4 Qg4 Ka4 Rh5 Rh1 Qh4 Rf1 Ng4 Rg1 Rh7 Qc8 Nh6 Qd7 Bh3 Qf5 Bg4 Qf1 Be6 Qfh3
B1N2q2/2PpRn2/K3qB2/2n1r1Rq/BQB3nk/1q2b3/3rr3/R2B2n1 w - - 0 1 illegal: No possible last move
2N1RR2/2bRpn2/1N4nq/3K1p2/2P2q1r/r2QB2r/qN3RR1/kb2r3 w - - 0 1 legal: proof: d4 a5 b4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 Ba6 Na3 Bb7 Nb1 Bc8 e4 axb4 e5 Nf6 e6 fxe6 Ba3 Ng8 Bb2 Rh7 Bc1 Rh8 f4 Rh6 f5 Qc7 f6 Rh8 Bh3 Qd8 Bf5 exf5 Ke2 Kf7 Kd3 Ke6 Kc4 Ke5 h4 g5 b6 d5+ Kc5 d3 c4 b3 b7 b2 h6 g4 f7 g3 h7 d4 h5 d2 h6 g2 Nc3 b1Q Na2 d3 Ne2 g1Q+ Nd4 Qf2 Qf1 d1R Bd2 Ra3 Ba5 d2 Rg1 Bg7 f8R Qf4 Rg2 Nc6 b8N Bb7 Nc3 Qa2 Na4 Re1 Bb6 d1R Nb2 Rdd3 Rd1 Rh3 Nb5 Qdd2 Nd7+ Ke4 Re8 Ne5 Na7 Ng6 Nc8 Be5 Ba7 Ke3 Ndb6 Be4 Rf8 Qc1 Rd7 Bb1 Kd5 Bc7 Rf2 Re2 Re8 Kd2 Qd1+ Kc3 Qd3+ Kb4 Rf8 Re1 Re8 Qfe3 N6a4 Rf3 Bb6 Qa1 Qe2 Kb3 Qd2 Ka2 Qd3 Nf8 Bd4 Qed2 Nab6 Ng6 Nd6 Qg5 Bc5 Qcf4 Be3 Qgh4 Ndc8 Nf6+ Kc6 Ne4 Kd5 Ng5 Na7 Ne5 Nac8 Ngf7 Rg8 Rh3 Rg3 Rg8 h8R Rg4 h7 Ng6 Rgg2 Qhh6 Re8 Rgh4 h8R Bd8 Rhf8 Bc7 N2a4+ Qb2 Rd6 Ka1 Rd7 Qb3 Nb2 Qa2
qn3B1q/7n/p3B1rK/k2B4/B1BrR2P/3r1R2/n1RpQ1b1/1qrN4 w - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 b6 c5 b7 cxd4 b4 a6 g4 hxg4 c4 Bc5 b5 Rh6 Nc3 Ba7 b6 dxc3 bxa7 Rh8 Kf2 g5 h4 f5 e4 d5 e5 Kd7 e6+ Kc6 e7 Kb6 e8B g3+ Kf3 g4+ Ke2 c2 Ra5 g2 Kf2 g3+ Kf3 d4 Ba4 d3 Rc5 d2 Qe2 Nf6 Qe3 Nh7 Rc7+ Ka5 Nh3 g1R c5 g2 Bb2 c1N c6 Na2 Bc4 Rc1 Qe2 g1R Nf2 Rg6 Rh3 Qf6 Ba1 Rd8 Nd1 Qh8 Bg7 Rd4 Bf8 Be6 Re7 Bd5+ Re4 Rd3+ Ne3 Rd4 c7 Bc6 c8B Bd5 Kf2 f3 Be6 f4 Nd1 Rd3 Kf1 f2 Rf3 Ng5 Kg2 Nh7+ Kh3 f1Q+ Qg2 Qh1+ Qh2 Rf6 Kg4 Rg6+ Kh5 Rd4 Qe2 Qg2 Rd3 f3 Rb3 f2 Rf3 Nd7 b8R f1Q Rb7 Rd8 a8B Nb8 Rb2 Bc6 Bb7 Rd3 Rc2 R8d4 Rg4 Be4 Bbd5 Qgh1 Rfg3 Bg2 Re4 Qf7 Rf3 Qb7 Be8 Qb1 Ba4 Qh3 Bg8 Qc8 Bge6 Rg8 Kh6 Qc6 Bab5 Qa8 Ba4 Rg6+
1b1RN1B1/3KR1Pn/8/2n1Q1nb/2N3R1/1q2rr1k/rN1RRb2/q2q1bn1 w - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Bd2 gxh4 Bc3 b5 axb5 dxc3 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kf3 d5 g4 h5 b4 a5 e4 d4 e5 d3 b6 a4 c5 c2 c6 c1N b5 d2 g5 a3 c7 a2 g6 h3 g7 h4 b7 h2 b6 h3 Na3 Na6 b8R Qd5+ Kf2 f3 Kg3 f2 Kf4 Bc5 b7 Ne2+ Kg5 f4 Nb1 f3 Bg2 f1R Qe1 d1Q Kg4 f2 Nc3 Q5b3 Nf3 Ng1 Na4 Nf6+ Kg5 Ra7 Nb2 Re8 Nd2 Nh7+ Kg6 Bd4 Ndc4 Nc5 Rc1 a1B Rc2 Ra3 Rd2 Ra2 Be4 Bd7 c8R Re7 Rf8 Be8+ Rf7 Be3 Rbd8 Bf4 Na4 Bd4 b8R Bg3 Nab2 Qa1 Kh6 Be3+ Rf4 Bh5 Rb7 Re8 Bg2 Bd4 Rg4 Kf5 e6 Bb8 e7 Qad1 Rg6 Qa1 Re6 Kg4 Bd5 Nf3 Rc7 Nfg5 Rb7 Kh4 Rg1 h1Q Ra7 h2 Rg4+ Kh3 Re5 Qhf3 Bg8 Qfd1 Re6 h1N Ree4 Ng3 Re3 Rf8 e8N Rg1 Rae7 Rf3 R3e4 Rg2 Qe3 f1B Qc3 Bf2 Qe5 Ne2 Re3 Ng1 Ree2 Rc3 Re6 Bg6 Re7 Bc2 Kh5 Rgg3 Kh6 Rgd3 Kg6 Bb1 Kf5 Bc2 Qc7 Rf3+ Ke5 Bg6 Kd6 Rce3 Kc6 Nce4 Kd7 Bh5 Qe5 Nc5+
N1K1b2Q/q6B/1N1rB2n/NN5k/Rq3q2/2P1b3/2b1r2B/bbNq1qq1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a4 Nc6 Ra3 h6 Rc3 Nce7 Rc5 h5 Rg5 Nf5 gxf5 Ke7 Rg6 Ke8 Rg4 hxg4 Kd2 Kf7 Kd3 d5 e4 g5 h4 b5 f6 Kg6 e5 g3 f7 g4 e6 b3 a5 g2 a6 g3 a7 b2 e7 f2 e8N f3 Ne2 g1B Na3 b1B Nc7 b4 Nab5 g2 Bf4 b3 Nc1 b2 Bh2 Bg7 f8N+ Kh5 Nd7 Rh6 Nb6 Bd7 Qe1 Be8 Qc3 Rc8 a8B Qe7 Bb7 Rc6 Nca8 Rd6 Bc6 Be5 Bd7 Nh6 Be6 Qa7 Be2 Rcd8 Qc8 f1Q Qb8 Kg6 h5+ Kg5 Qc8 Be3 Qb8 g1Q Qc8 Nf7 h6 f2 h7 Nh6 h8N R8d7 Qc3 Re7 Ng6 Bh8 Ne5 Bf6 Na2 Qc1 Qc8 f1Q Nc6 Qf4 Bf1 Kh5 Na5 Qe1 Nc1 Qb4 Bg8 Bh8 Bh7 Be5 Qd8 Ree6 Qf6 Re7 Qh8 Bf6 Ke2 d3+ Kd1 d2 Ke2 d4 Kd3 Bf2 Ne2 Ba2 Bf5 b1Q Bh7 d1B Bh3 Qgg5 Rg1 Re4 Be6 Qbc1 Rg3 Bb1 Re3 Qg1 Rf3 Qbd2+ Kc4 Re3 Kc5 d3 Rg3 Ba1 Rg2 Qde1 c3 Qb2 Nc1 d2 Na3 Qef1 Nb5 Qff7 Rg8 Bdc2 Rg4 d1Q Rb4 Qf4 Ra4 Rd7 Kc6 Qbb4 Nb7 Rd6+ Kc7 Re1 Kc8 Be3 Na5 Re2
1q3nq1/K2NP3/1N1k1NbQ/1R2nB2/Nb2Bb2/q3r2n/3p2rN/4b1Bb w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 a5 Kc4 f5 Kc5 g5 h4 d5 e4 d3 c4 d4 h5 g4 e5 a4 b6 f4 h6 f3 b7 f2 h7 d2 b5 a3 b6 d3 e6 a2 Qb3 a1Q Qb5 d1N Nc3 d2 Qc6 Nf6 Rh5 Rg8 h8N Nh7 Bd3 f1B Na4 Nf2 Nf3 g1B Nf7 g2 N7e5 g3 Be4 Bd3 Bb2 Bh2 Ng4 g1Q Bd4 g2 Nf6 Bf4 Nh2 Nh3 Rg5 Qgb1 Bg1 Qba2 Kb5 Nd7 b8N Ne5 Nbd7 Bb7 Rh5 Bc2 c5 Qb8 Rf5 Ra6 Rh5 Ba8 b7 Rb6+ Ka5 Rb3 Ka6 Re3 Nb6 Qa3 Rf5 Rgg3 Rg5 Qd1 Rh5 Qg4 Rf5 Qg8 Rh5 Qd8 b8N Qe8 N8d7 Qb8 Qc8 Bb1 c6 Kd6 c7 Be7 Qe8 Nf8 c8B Rg5 Qg6 Rg4 Bf2 g1B Qh6 Rg2 Rg5 Rc3 Bd4 Bf2 Rh5 Be1 Bg1 Re3 Rg5 Ng4 Rc5 Ne5 Rb5 Bd8 e7 Bd5 Na8 Ba5 N8b6 Bd3 Bf5 Bb4 Bb7 B3e4 Ba8 Bf7 Bd5 Bg6 Bb7 Rg4 Bd5 Bh1 Bde4 Qc8+ Ka7 Rg2 Nc5 Qe8 Ncd7 Qb8+
2KB4/BB3b2/5N1N/qP1n1br1/rkrr3B/2rr1n2/1p4B1/1q1NRbQ1 w - - 0 1 illegal: No possible last move
Rr1q3B/nRqk2p1/2R2b1N/4q1bq/B1R2nr1/B7/5P1K/qqb2Q1R w - - 0 1 legal: proof: e4 a5 d4 c5 g4 cxd4 b4 axb4 e5 b6 e6 fxe6 Nc3 e5 Nb1 e4 Bh3 Bb7 Nd2 Bd5 Ndf3 Be6 Bf1 Bf5 gxf5 h6 Ne5 h5 Ng4 hxg4 a4 d5 h4 e5 c4 b5 h5 b3 h6 d3 h7 d2+ Ke2 b2 a5 b1Q a6 e3 c5 g3 Kf3 g2 Kg3 e2 c6 e1Q c7 e4 c8R e3 f6 d4 f7+ Kd7 a7 e2 Kh2 d3 Rc6 b4 Ra2 b3 Rac2 b2 Ra6 Ba3 f8R Qc7+ Rf4 Nf6 Nh3 g1B+ Kg3 Bh2+ Kg2 Qa1 Rf5 b1Q Rb5 Bf4 Raa5 Bg5 Rh2 Nd5 Kh1 Nf4 Ra6 Nc6 Rb7 Rab8 a8R Na7 Rac6 Bae7 R2c5 Bef6 Ba3 Rhd8 Qc1 d1Q h8B d2 Rc4 Re8 Kg1 Re4 Rh1 Qe5 Kh2 Rd4 Bg2 Qf1 Rg1 e1B Rh1 Qh5 Bf3 Qfd3 Bd1 Qa1 Ba4 d1Q Qb1 Bd2 Qc1 Q1b3 Qg1 Bc1 Qf1 Bh4 Ng5 Qbb1 Nf7 Bhg5+ Kg1 Ng2 Nh6 Rg4 Bc5 Qdd5 Ba3 Nf4+ Qg2 Qhe8 Kh2 Qd8 Qh3 Qf7 Qf1 Qh5+
n1Br2n1/n4Pnq/Q2p2R1/2qq4/3qRR1R/rq1B3K/b7/R1Bk2bN w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Nc3 fxe4 Nd5 b6 Nb4 axb4 a5 Na6 axb6 Nb8 g4 Kf7 c4 Kf6 f4 h5 Kf2 e5 Kg2 d3 f5 e3 c5 Kg5 f6 Kf4 b7 e4 f7 b3 g5 h3+ Kh2 d2 c6 h4 g6 e2 g7 Ke3 b6 e1N c7 b2 Qg4 b1N Bc4 Bc5 Ne2 Ra3 Bb5 Nc2 Ng3 Nc6 b8R Nc3 b7 Nd5 Rd1 Na7 Bd3 Nd4 Qg6 Ne6 Bb1 Nb6 Ra2 Na8 Nh1 Ke2 Qg5 e3 Kg1 h2+ Kg2 h3+ Kg3 d6 Nf2 h1Q Bb2 h2 Bc1 Qf6 Ra1 Qd4 Rf1 Qhd5 Nh1 d1Q Rf4 Q1b3 Bd3+ Kd1 Qd8 Bd7 c8B e2 Qa5 e1Q+ Kg4 Qee4 Qa6 Qh7 Kg3 Bb6 Rh4 Q5c5 Kh3 Nf6 g8R Ng7+ Kg2 Bb5 Kh3 Bc4 Re8 Rf8 Re4 Ng8 Rf4 Nc7 Ra8 Rd8 b8R Bd5 Rb7 Bc4 Rab8 Na8 Re7 Bd5 Re6 Bc4 Rb7 Bd5 Rbe7 Bc4 Rg6 Bd5 Ng3 h1Q+ Kg4 Qhe4 Nh1 Bc4 Kh3 Qed5 Bb7 Qbb5 Bc8 Ba2 Ree4 Qbb3 Rf5 Ba5 Rf2 Bd2 Rf3 Be3 Rff4 Bg1
1B1NRbbR/2n2K1b/rn1r2P1/1QRp4/1r1N3k/2pbR3/6R1/N4nbq w - - 0 1 illegal: No possible last move
qb2b2r/N1nKBbr1/r4pn1/R4B1p/1B2B2P/1k2q3/2NQ1B2/1N1b1b2 w - - 0 1 illegal: No possible last move
3R4/r3bRb1/p2qBN1B/p1bn2q1/nBkP2n1/Q3rn2/2KRR3/5n1R w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 dxc4 a5 b6 Qb3 bxa5 Qc2 Be6 Qd1 Bc8 Nc3 h5 Nd5 f5 Ne3 f3 Nc2 f4 Ne3 Bf5 gxf5 Kd7 Ng4 hxg4 Nh3 Ke7 Ng1 Ke8 e4 Ke7 h4 Kd6 b4 g5 h5 c5 d3 g3 Kd2 a6 f6 g2 h6 g4 b5 g3 b6 c3+ Kc2 f2 b7 c4 f7 Kc5 e5 f3 e6 Nd7 b8B Bg7 f8R Ngf6 h7 Nb6 e7 Qd6 e8R Na4 Bc7 Ng4 Qe2 Ra7 Kd1 c2+ Kd2 Kd4 Ba3 c1B+ Kc2 c3 Rf7 Bg5 Nh3 g1N Nf4 g2 Nh5 Be7 Ra2 Rf8 Rd8 Re8 Qe3+ Kd5 Be2 f1N h8R f2 Bb4 Nf3 d4 g1Q Bd1 Kc4 Nf6 Qgg3 Qc1 Qg2 Qa3 Nfe3+ Kb1 f1N Re2 Qgg3 R8h2 Nd5 Kc2 Qge5 Rd2 Qf4 Rhe2 Qg5 Kb1 c2+ Kc1 Qb6 Bf4 Qd6 Be3 Nab6 Kb2 c1B+ Kc2 Na4 Bf4 Qge5 Bh6 Qg5 Kb1 Bb2 Bc2 Bc1 Bf5 Bb2 Be6 Bc1 Kc2 Bb2 Qa1 Ba3 Bc3 Bb4 Qa3 Bc5 Bb4 Bef8 Bd7 Re3 Be6 Be7
2nn1bb1/N1rp4/P2RR1nQ/qrR2N1B/b1p1nN2/1nR3RK/8/4kq2 w - - 0 1 legal: proof: c4 c5 h4 g5 e4 f5 exf5 gxh4 b4 Qc7 b5 Qd8 b6 axb6 d4 Nc6 Ba3 cxd4 c5 Nb8 c6 Na6 Bb4 Nb8 Bc5 bxc5 g4 Kf7 f4 Kf6 Kf2 h5 Kg2 e5 a4 b5 c7 c4 a5 h3+ Kg3 b4 a6 h2 Nh3 d3 Nc3 h4+ Kg2 e4 Ra4 d2 Nb5 e3 Qe1 d1B Ra3 e2 Ng1 h3+ Kg3 b3 Nc3 b2 Qd2 b1N Nf3 e1N Nb5 Ra7 Rc3 Rh5 Nh4 Nf3 Be2 Nc6 Re1 Bb7 c8R h1Q Qc1 h2 Kh3 Nfe5 g5+ Kf7 f6 Ke6 g6 Kd5 f5 Ke4 f7 Qa5 g7 Nd8 f6 Ne7 g8R Nd2 Rg2 Qf1 Rc5 Nb3 Qh6 Bc2 Rd1 h1N Rd6 N5g6 Bd1 Rd5 Nf5 Nc8 Bh5 Ng3 Re6+ Re5 Rd6 Ba8 Re6 Rc7 Na7 Bd5 Rd6 Be7 f8N Bg8 Ne6 Bf8 f7 Bd1 Nf4 Rd5 Rcc6 Rb5 Rc5 Na1 Rcd5 Ba4 Rc5 Nb3 Qh7 Bh6 f8R Bg7 Rff6 Bh6 Nh4 Bf8 Rde6+ Kd4 Qg7 Ne4 Qh6 Qf3+ Rg3 Qd3 Bf3 Ke3 Nf5+ Kd2 Bh5 Ke1 Rd6 Qf3 Rfe6 Qf1+
2bk2N1/3rR1qB/3N2n1/brqpb2r/4p1B1/4n3/NnB2PB1/bB1Q3K w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 axb4 h5 c5 dxc5 g5 Bc4 Ra4 Bf1 Ra8 a4 h6 g4 Ra7 Rh4 gxh4 g5 Qc7 g6 Qd8 Bg5 hxg5 Ra3 Rh6 Rh3 Ra8 Rh1 Rh8 c4 b5 c6 e5 h6 d5 a5 e3 c7 e4 c5 h3 c6 g4 h7 h2 g7 b3 a6 e2 a7 g3 Nh3 b4 Nd2 b2 Bg2 b1R Rf1 h1Q Rg1 b3 Nc4 b2 Nf4 Qd7 Nd3 Ne7 g8B Ng6 Nc1 Na6 Na2 Bg7 Nd6+ Ke7 Nc1 Qhh3 Na2 Nc5 Rh1 Rb8 a8B Na4 Bb7 Bd4 Ba6 Rb7 Bd3 Qhf5 Rh3 Qf8 Bc2 Rb5 Rh4 Ra1 Rg4 b1N Rf4 Nd2 Rf7+ Ke6 Bb1 Nf1 Re7+ Kf6 Bc2 Ne3 Bb1 Nb2 Bc2 Ba6 c8B Qc7 Bce6 Bc8 Bg4 Qg7 Bb1 Qa7 c7 Qc5 Bc2 Rc1 Bb1 Rc3 Bd7 Rcb3 Be8 Rb7 Ba4 R3b5 Bac2 Be5 Kd2 e1B+ Ke2 Ng4 Kf1 Ne3+ Kg1 Ba5 Bh3 g2 Bg4 Bf5 c8B Rd7 Ba6 Bd4 Kh2 g1B+ Kh1 Bh2 Bc8 Rb3 Ba6 Bdc3 Bf1 Rb5 Bg2 Bhe5 Be6 Rf8 h8N Rfd8 Nhf7 Rh8+ Nh6 Rh7 Bg8 Be6 Be2 Bh3 Nhf5 Rh5 Bh7 Bcd4 Bg4 Bdc3 Re8 Bcd4 Nh6 Bdc3 Rf8+ Ke7 Rf7+ Kd8 Ng8 Nd3 Re7 Ba1 B4f3 Nb2 Be2 Rc7 Kg1 Bc8 Bg4 Bh2+ Kh1 Rd7 Bf5 Be5+ Bfh3 Rf5 Bg4 Rh5+
2N1nb2/1b2rB2/NqQB4/2p2b1b/P1K1N3/2R3B1/r4p2/N1nqrkqN w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 f4 e5 Qb3 exf4 Ra2 g3 Ra3 g2 Qd1 Nf6 Rc3 Ng8 Rg3 fxg3 e4 Ke7 Ke2 Kf6 Kd3 Kg5 h4+ Kf4 e5 g5 e6 f5 e7 c5 e8N b5 h5 g4 d6 b3 h6 b2 d7 b4 h7 b3 Rh3 Bb7 Kc4 Ra7 Ne2+ Kf3 d4 Kf2 d5 g1Q d6 g2 Qd5 f4 Na3 b1B Ng3 b2 Nf6 f3 Bf4 Qb6 d8N Nd7 Ne6 Bg6 Qc6 b1B Nc7 Bbf5 Na6 Bh5 Nc2 Qh1 Bd3 g1R Na1 Re1 Nfe4+ Kg1 Bb1 Ngf6 Ba2 Ne8 Bb3 Rg8 h8N f2 Ng6 Ne5+ Kd5 Rh8 d7 Nd3 d8B Nc1 Ne7 Rh6 Nc8 Rd6+ Kc4 Rd2 Bb8 Ra2 Be7 Qf3 Bc7 Qd1 Nh1 g3 Bed6 g2 Rc3 Kf1 Bg3 g1Q Bcd6 Qc7 Kb5 Qd8 Bf7 Qb6+ Kc4 Ba8 Ra3 Re7 Rc3 Bb7
R4B2/7P/nbnrq1RB/pbNB1RBn/2n5/p1q1rK1B/q1k3r1/7Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Ke7 e4 Kf6 d4 g5 b4 a5 h4 c5 h5 a3 d6 f3 d7 g3+ Ke3 g2 h6 f2 e5+ Kf5 e6 c4 e7 g4 e8B c3 d5 c2 h7 g3 b5 Bc5+ Qd4 Qe7+ Kf3 Ba6 d8B Qe6 d6 Bb6 d7 Ne7 Bg5 c1Q Rh2 Qc3+ Qe3 Nec6 Rh4 Rg8 Nh3 g1R Rh6 g2 Bde7 f6 Bc4 f1N d8B Ng3 Nd2 Re1 Bd7 g1Q Ne4 Qh2 Bd5 Nh5 Rg6 Qa2 Nf4 Ra7 Bc8 Rd7 Ng2 Rd6 Bh6 Ke5 Rc1 f5 Bef8 f4 Nc5+ Kf5 Qd3+ Ke5 Ne3 Rg7 Rf6 Rg2 Qb1 Kd4 Rf5 Qg6 Na4 Qe6 Qa1 Kd3 Bdg5 Ree2 Rh1 Re1 Rh3 Kd2 Rg3 Kd3 Nc5+ Kd2 Kg4 f3 Qb1 f2 Kf3 f1N Rg4 Bd8 b6 Bb5 b7 Na6 b8R Bb6 Qe4 Kc1 Ra8 Kd2 Rg3 Kc1 Qh4 Kb2 Qh1 Nd2+ Kg4 Nc4 Kf3 Qa1 Bge7 Kc1 Rg6 Qa2 Beg5 Qe8 Re5 Kd2 Bg4 Qe6 Bh3 Qb4 Ng4+ Kc2 Rf5 Qc3+ Ne3+ Rxe3+
Q3N1R1/B3pb2/1pq3B1/rn3rn1/2r2B2/B1qb4/PrB1N1k1/N3K1nb w - - 0 1 legal: proof: d4 a5 e4 c5 f4 cxd4 b4 axb4 g3 f5 Bg2 fxe4 Bh3 Qc7 Bf1 Qd8 Nd2 g6 Rb1 Bg7 Rb3 Be5 f5 Bf4 gxf4 h6 Rg3 h5 Rg4 hxg4 c4 Kf7 h4 Kf6 h5 d5 h6 g5 h7 g3 c5 e3 c6 g4 c7 b6 Ba6 b3 Ndf3 b2 Kf1 b1B Qd3 g2+ Ke1 g3 Ng5 e2 Qe4 d3 Bb7 d4 Bb2 Qd7 Rh5 Ra5 Ba1 Nc6 N5f3 Na7 Bb2 Nh6 Nd2 Nf7 Ba3 Rf8 Nb3 Nb5 Na1 Qc6 Rg5 Be6 Rg8 Ng5 c8B Bf7 Be6 Rc8 Bb3 Rc7 Bc2 Rc8 Nf3 g1N h8N g2 Ba6 Qe8 Qa8 Rc4 Bc8 Qc6 Bd7 Bd5 Be8 Be4 Bg6 d2+ Kf2 d1R Nf7 e1R Nd6 d3 Nd4 d2 Ne2 Rc1 Nc3 Re3 Ne2 d1B Ke1 Rb3 Rd8 Kg7 f6+ Kh6 f7 Rb2 f5 Rc5 f6 Rf5 Rg8 Bd3 Bb3 Rc4 Ne8 Be4 Ba4 Bbd3 Bc2 Bd5 Nd4 Bh5 Ne2 Nh7 f8B+ Kg5 f7 Kh4 Bg7 Kh3 f8B Ng5 Be5 Bhf3 Bd4 Bf7 Be5 Nh7 Bfg7 Ng5 Nd4 Ne2 Bb8 Bfe4 Ba7 Bed5 Kd2 g1Q Be5 Qe1+ Ke3 Bg2 Bf4 Qc3 Kf2 Ng1 Ne2 Bh1 Kf1 Qg7 Ke1 Kg2 Qb8 Qgf6 Qa8 Qc3+
NbKnn3/BRP2B1p/1r2R1n1/1b1r3p/2rQ1b2/q1B1n1k1/1R6/B1q2B2 w - - 0 1 legal: proof: c4 c5 d4 cxd4 a4 e5 f4 exf4 h4 b5 axb5 g6 h5 gxh5 Nc3 dxc3 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kd4 Kf5 b4 Kg4 Ke5 a5 e4+ f3 b6 f5 b7 c2 c5 a4 g3 d4 b5 d3 b6 f4 c6 d2 Ne2 f2 Rb1 f3 Nd4 a3 Bb2 c1B Ne6 a2 Bc3 a1Q Rb2 Qa3 Nc7 Ra4 Na8 Bd7 c7 Bb5 Ke6 Nf6 e5 Nc6 b8B Rc4 b7 Ne8 Ba7 Qg5 Kd7 Bc5 b8B Nd8+ Kc8 Be3 Qa4 d1R e6 Rd5 e7 Bc5 Qd1 Bf4 Qd4 Rf8 Bb6 Rf6 B8a7 Rh6 Bba5 Rb6 Rh2 Qh6 Rb3 Qg5 Ba1 Qh6 B5c3 Qc6 Bd3 f1N Rhb2 Nd2 Bf1 f2 Rb4 Kf3 g4 Kg3 g5 Nf3 g6 Ne5 g7 Qh6 g8B Ng6 Bf7 Qg5 Be2 f1N R4b3 Ne3 Bd3 Ng7 e8R Qh6 Re6 Ne8 Rb1 Qc1 R3b2 Qf8 Bf1 Qd6 Qd2 Bd4 Qd3 Qa3 Qd2 Bc5 Qd4 Ra6 Re2 Bc6 Rb7 Bb5 Rb2 Rc6 Bb6 Rcd6 Bba5 Ba7 Bb6 Bb8 Ba7 Rb6
rR2qrBr/1p4qb/2B3nn/2BB1NN1/1n2Qp1B/1P2K3/1bqN4/1n1k4 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 d4 cxd4 b3 gxh4 Nd2 a5 Rb1 a4 Rb2 a3 Bc4 axb2 a4 Qc7 Bf1 Qd8 Ke2 Kf7 g4 Kf6 f4 b1N c4 d5 c5 e5 c6 h5 a5 d3+ Kf2 h3 a6 d4 a7 h4 c7 h2 Qe1 h3 Bg2 Na6 Bd5 Nh6 Qe4 Nb4 Ne2 Qe8 Ng3 Be7 Rf1 h1Q Bc6 Bd7 c8B h2 Ba3 Rf8 g5+ Kg7 g6 Kf6 g7 Qg1+ Kf3 h1R g8B Bd6 Bgd5 Be6 Rd1 Bg8 Bce6 Bh7 Bg8 Bc5 Ngf1 Qg7 Ne3 Na6 Bc1 Ba3 Rf1 Bb2 Rf2 Rd8 a8N Nb4 Nc7 Ra8 Ne6 Rh4 Ng5 Rh1 Ndf1 d2 Rh2 d1N Nd2 d3 Rg2 Ke7 f6+ Kd6 f5 Kc5 f7 Nf2 f6 Nh3 Nf5 Nf4 Ke3 Rh4 Ndf3 d2 Rh2 d1Q Nd2 Qe7 Rh3 Ng6 Rg3 Rfe8 f8Q Qc2 f7 Reb8 Qe8 Rd8 f8B Rdc8 Qf7 Rh5 Nd6 Qe8 Qff4 Rd8 Ngf3 Rf5 Ng5 Rf7 Be7 Rf8 Nf5+ Rd6 Rh3 Qef7 Rf3 Bc3 Qg3 Rfc8 Ba3 Qd3+ Kf2 Bb2 Ne3 Qe6 Bf7 Rh8 Bf6 Rdd8 Bg8 Qc8 Nf7 Qc3 Qc2 Kd4 Bh4 Na2 Ng5 Qd3 Be7 Nb4 Rf8 Qc4 Qf5 Kc3 Qe4 Qd3 Nf5 Kc2 Qge3 Kd1 Bc5 Qc2 Q3f4 Re8 Ke3 Qd8 Rf6 Qc8 Rd6 Rf8 Rd8 Qe6 Rc8 Qe8 Rb8 exf4+
4R2b/1RPr2n1/1NB5/kr2pr1n/5b2/1b1b3q/1p3N1K/NrRQ1rRR w - - 0 1 illegal: No possible last move
1R5B/NrN3N1/N4n1Q/2q1n3/p1b1bpR1/k2rP3/3n1R1K/n2r1Nrb w - - 0 1 legal: proof: f4 e5 g4 b5 a4 bxa4 d4 f5 g5 c5 Bh3 cxd4 Bg4 Be7 Bh3 exf4 Bg4 Bf6 gxf6 h5 Ra2 hxg4 Ra3 Nh6 Ra1 Ng8 Kf2 a5 Kg2 d5 b4 Kd7 h4 Kd6 c4 g5 h5 f3+ Kg3 a3 f7 f2 f8N f1B h6 a4 b5 Kc5 b6 Kb4 c5 f4+ Kh2 a2 e3 d3 h7 d2 b7 d4 c6 d3 c7 Nc6 b8R+ Bb7 c8N Qb6 Nh3 g3+ Kg1 g4 Ne6 g2 Bb2 Qc5 Ng7 Ra7 Kh2 g1R Ng5 Nf6 Ne4 Rd8 h8N Ne5 Ng6 Bg2 Qc2 d1R Nf8 d2 Nfe6 Rd3 Nc7 Bf3 Nb6 Ba8 Nc8+ Rb7 Na7 g3+ Kh3 g2 Kh2 Qf8 Nc5 Be4 Qc1 Qd6 N5a6+ Kb3 Bd4 Qd5 Qc6 Qc5 Nc3 Kb2 Ne2+ Ka3 Rc1 a1N Rc2 Rdf1 Bc3 d1B Ng3 Be2 Qd6 Rfd1 Nf1 Bh5 Qf8 Bf7 Rf2 Bfd5 Qh8 Bc4 Qh6 Rc1 Nd2 Rgd1 Re1 g1N Nf1 Rcb1 Ree2 Bh1 Rg2 Rbc1 Ref2 Ngf3+ Kh3 Nd2 Kh2 Rcb1 Rg4 Rbc1 Ng3 Rg1 Nf1 Rd1 Qh7 Rb4 Bd4 Ng8 Nge8 Nc6 Bg7 Nf6 Qh6 Ne5 Bh8 Bae4 Ng7 Rb7
r1k3K1/2N2N2/np2R2b/1N1qQ1NR/n3Nrnp/2r5/n5bP/1b3BrR w - - 0 1 legal: proof: b4 d5 b5 Bf5 b6 Bc8 a4 Qd6 a5 Qd8 a6 cxb6 axb7 Bf5 Ra3 Bd7 Ra1 Bc8 f4 g5 Bb2 gxf4 e4 dxe4 Qe2 f3 Kd1 Be6 Bd4 Bc8 Bf2 e3 Kc1 exf2 Qe1 Nf6 Qd1 Ng8 Kb2 Kd7 Kc3 e5 Kc4 a5 Kd5 h5 c4 f5 d4 h4 g4 a4 c5 f4 g5 a3 g6 e4 g7 a2 Qd2 e3 Qc2 e2 Qb2 e1N Nd2 Na6 Ne4 Nc2 Re1 a1N Nh3 Nb3 Nhg5 Nh6 g8R Ncb4+ Ke5 Na2 b8N+ Kc7 d5 Bf5 c6 Nbc5 d6+ Kc8 c7 Na4 Qb5 Rh7 Rh8 Ng4+ Kd5 Re7 Rh5 Bh6 Qe8 Rh7 Qe5 Bg6 Ke6 Rd7 Nd2 Bb1 Nde4 Rh7 Re2 Rh8 Kf7 Re8 Bg2 f1B Re3 f2 d7+ Kb7 c8N f3 Bh3 Bg2 Na7 f1R Nb5 f2 Re2 Rg1 Re1 Bf8 Kg8 f1R Re2 Rf4 Re3 Qe7 d8N+ Kc8 Ndf7 Qd8 Re1 Qd5 Re2 Bf3 Bf1 Bg2 Re3 Re6 Re1 Rc6 Re2 N6b4 Na6 Bh6 Nac7 Rc1 Rc2 Na6 Rc6 Rc2 Re6 Rc3
Rrqk4/Qp2n1np/N1R2P2/1r1Nb3/1N3KR1/3rr3/1b2bBq1/2R2bR1 w - - 0 1 legal: proof: c4 f5 b4 a5 h4 axb4 e4 fxe4 a3 d5 cxd5 g5 Bc4 gxh4 Ba2 b3 Qe2 bxa2 Qh5+ Kd7 Qd1 Ke8 Ke2 e5 Ke3 c5 f4 c4 d4 c3 g4 h3 f5 c2 g5 h2 d6 Qd7 a4 Qb5 d7+ Ke7 d8R Nf6 a5 Bg7 a6 Nh5 a7 Qd5 g6 Nc6 Nc3 Rb8 Rd6 Rd8 a8R Be6 Bd2 c1Q Nh3 Bf7 Rg1 h1B Nb5 Bg2 Qe2 Bf1 Nc7 Rd7 Rb1 a1B Qa6 Bb2 Nf4 Qc2 Qa3 Qdc4 Bb4 Qg2 Qa7 Qc5 Na6 B7c4 Bd2 Ke8 Rf6 Ne7 Be1 Qc8 Rc1 Rd5 Bh4 Rb5 Rc6 Bf6 g7 Bcd3 g8N Ng7 d5 Bc4 d6 Bcd3 Bf2 Bc4 Kd2 e3+ Ke1 e2 Kd2 e1R Nd3 e4 Ndb4 Rd1+ Ke3 Bfe5 d7+ Kf7 d8R Rd4 Rdd6 Ke8 Rg6 Kd8 Nf6 Rd7 Rg4 Bcd3 Kd2 e3+ Kd1 e2+ Kd2 Rd4 Nfd5 e1R f6 Ree4 Kd1 Bde2+ Kc2 Rc4+ Kd2 Red4+ Ke3 Rd1 Rb6 Rf4 Rbc6 Rf3+ Ke4 Rdd3 Be3 Bec3 Bf2 Rfe3+ Kf4 Be5+
2N1b3/1RnR1P1n/N2QNB1n/Kq2b1bk/6p1/5R2/prq1rp2/1R3rR1 w - - 0 1 legal: proof: g4 f5 f4 h5 d4 c5 a4 cxd4 e4 fxe4 Be2 hxg4 Bf3 b5 axb5 exf3 Kd2 Kf7 b4 Kg6 h4 e5 c4 a5 b6 d5 b5 d3 Kc3 e4 f5+ Kh5 c5 g5 c6 d2 b7 e3 c7 f2 f6 e2 b6 e1N f7 a4 Rh2 d4+ Kc4 a3 Kb5 d3 Ra2 Be7 Rh1 Nh6 Bb2 Nf3 Ne2 g3 Nbc3 g4 Na4 g2 Bf6 g1B Nc5 Qd5 Nd4 Na6 b8R Bd7+ Ka5 Be8 c8N Bh2 b7 Ng5 Ne6 Be5 Rg1 Nh7 Rc2 a2 Rc3 Qd7 Rb3 Nc7+ Na6 Rg8 Rb1 Ra7 Ra8 Rf8 b8R Rb7 Ra7 Rb2 Rb6 Rh8 Rab7 Rg8 Rd6 Qc6 Rd7 Qc4 Qf3 d1R Qd5 d2 Qd6 Rf1 Ng7+ Kg6 Ne6 d1Q h5+ Kf5 Bh8 Bg5 Bf6 Qdc2 Nd8 Rh8 Ne6 Ng8 h6 Kg6 Nb6 Kh5 Nc8 Nf8 h7 Nh6 Rb8 Rg8 h8R Nh7 Rb3 Rg6 Rf3 Q4b3 Bd8 Rf6 Rg8 Rf4 Bf6 Re4 Rf8 Re2 Rh8 Na8 Rb7 Nc7 Rg8 Bb5 Rd8 Be8 Rd7 Qb5+
2B5/R1n3NK/Qq1RRPb1/N1Rb1nr1/rp3Np1/1b1p2n1/1k4q1/5bR1 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd3 f4 Nb1 h6 Qd1 Bd6 Be3 f2+ Kd2 f3 Bg5 Bf4+ gxf4 hxg5 f5 Kf7 Kd3 Kf8 Kd2 Ke8 Kd3 Ke7 Ke4 Kf6 a4 b5 c4 d3 h4 d2 h5 d6 h6 g6 h7 g4 a5 b3 c5 g3 a6 b2 a7 g5 c6 g4 c7 b4 Na3 g2 Qa4 d1B Qa6 Bd7 c8R Bb3 Rc5 Ne7 Nh3 g1Q Nc4 Qb6 Nf4 Rg8 h8R Be6 Na5 Qg2 Re1 Rg5 Rd8 Bec4 e3 b1B+ Bd3 f1B Rg1 Bf7 Re2 B1a2 Bb5 Bh5 Bd7 Bg6 Bc8 d5+ Kd3 Ke5 e4 f2 f6 Nbc6 Rd6 Nd4 Ke3 Nb5 Kd3 Rb8 a8R Nc7 Ra7 Ra8 Kd2 Kd4 e5 Bbc2 e6 Nf5 e7 Be4 e8N Bb3 Ng7 Bf3 Ree6 Be4 Rb5 Bf3 Kc1 Kc3 Kb1 d4 Rc5+ Bbc4 Kc1 Bd5 Kd1 Kb2 Kd2 Ka2 Kc2 d3+ Kd2 Nd4 Ke3 Kb2 Ne2 Ba2 Kf4 Nf5 Ke5 Bac4 Nf4 Bb3 Nb7 Bf7 Qa4 Be2 Raa5 f1N Qb5 N1g3 Ra3 Ra5 Qc4 Rb5 Ra7 Ra5 Qa6 Ra4 Na5 Bf1 Ng6 Rh5 Kf4 Rh2 Kg5 Rh1 Nf4 Bg6 Ngh5 Nd4 Kh6 Rh2 Kg7 Ndf5+ Kg8 Rh1 Ng7 Rh6 Rc4 Rh5 Rc5 Rg5 Kh8 Be8 Kh7 Bg6+
2rbk1N1/N2R1q1n/2QPq3/2b3q1/6q1/N2p3b/1Bpn2p1/rNB2NKB w - - 0 1 legal: proof: f4 d5 d4 h5 b4 e5 a4 exf4 g4 hxg4 Ra3 b6 Rd3 b5 c4 dxc4 axb5 cxd3 Kf2 c5 e4 a5 h4 f5 b6 g5 e5 a4 h5 g3+ Kg2 a3 b5 f3+ Kh3 g2 Kh2 a2 d5 a1B h6 f2 e6 c4 b7 g4 e7 f4 b6 c3 h7 c2 Ne2 f3 Ng3 Na6 b8N Nf6 b7 Nc5 Nd7 Nce4 b8N Nd2 Ne5 Qd7 Qe1 Qe6 Qe4 Bc3 d6 Ra1 Nc4 Bb4 Be2 f1Q Nca3 f2 Nc6 Qd1 Bf3 f1Q Na7 Bh6 Rg1 Bg5 Qc6+ Bd7 Bd5 Rg8 h8B Nh7 Rh1 Qff7 Bhb2 Bf6 Nf1 Rh8 Kg3 g1Q+ Bg2 Qc5 Kh2 Qg5 Kg1 g3 Rh4 Qdg4 Bh1 g2 Rh5 Qh6 Rb5 Qhg5 Rb7 Rf8 Qb6 Bc8 Rd7 Ba5 Qc5 Bfc3 Qd5 Bcb4 Qc6 Bd8 Qc4 Qef6 N7b5 Qh3 N5c3 Bda5 Ng3 Qhh4 Rc7 Bh3 Ncb5 Qhg4 Na7 Q6e6 Nf1 Rh8 Rc6 Kd7 e8N Kd8 Nf6 Rf8 Ng8 Kd7 Qb5 Rc8 Rc7+ Kd8 Qd5 Ke8 Rd7 Bd8 Qc6 Bc5+
4bR1N/1Q1rp1p1/1Br2P1R/3bR3/1pR1r3/rN1nbr2/2K1Nk1q/1q5R w - - 0 1 illegal: Other
2b3q1/4bB2/B1P1r3/kr1n1R2/pq1BK2N/R4p1B/r1Q1pBqb/R4q2 w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 f5 e5 Qe2 e4 Qd2 Bg7 Qd1 Bf8 g4 Qc7 h4 Bh6 h5 Nc6 Nc3 Bf8 Nd5 Ne5 Nf4 gxf4 g5 Ng6 hxg6 Qd8 Kd2 e5 b4 a5 c4 h5 b5 d5 f6 Kd7 f7 Kc7 c5 a3 c6 Kb6 g7 a2 g6 f3 Rh4 d3 Ke3 d2 Ba3 d4+ Kf2 d3 Ke3 Ne7 g8B Nd5+ Kf2 e3+ Kg3 e2 g7 e1Q+ Kh2 e4 Bh3 e3 Qc2 d1R Bb2 e2 Ra4 d2 Ra3 Be7 f8R h4 Rf5 Rh6 Bf7 Re6 g8B Rb1 Be5 d1Q Bd4+ Bc5 Bh7 Qg8 Bhg6 Qb4 Bf2 Ka7 b6+ Ka6 b7 Be7 b8B Qf1 Be5 Rb2 Bh8 a4 Bhd4 Ka5 Rf4 Rb8 Bd3 Rb6 Ba6 Rb8 Rf5 Rb5 Bg4 h3 Kg3 h2 Nh3 h1Q Nf4 Qhg1+ Ng2 Qh1 Rd1 a1B Nh4 Ra2 Rb1 Nf6 Kf4 Qhg2 Bh3 Bc3 Ra1 Bb2 Re5 Nd5+ Ke4 Bc1 Nf5 Bf4 Nh4 Rd6 Rh5 Bh2 Rf5 Re6+
5BN1/2b4p/1P1B1Qqp/4b1p1/1rrq1Rp1/4n2N/2b2KBB/knN2Br1 w - - 0 1 illegal: No proof kernel
nQ3R2/Nqb3nN/B3nR2/1Rpp4/R1r4k/Pp2R2p/1N1rq3/3b1Kn1 w - - 0 1 legal: proof: c4 c5 h4 g5 e4 f5 exf5 gxh4 b4 Qc7 b5 Qd8 b6 axb6 d4 Nc6 Ba3 cxd4 c5 Nb8 c6 Na6 Bb4 Nb8 Bc5 bxc5 f4 Kf7 g4 Kf6 c7 b5 a3 e5 Qb3 h5 Rh3 d5 Qd1 d3 Nc3 b4 Rf3 e4 Qb1 h3 Nd1 h4 Ne2 h2 Nf2 h1N Nc3 e3 Ncd1 b3 Nc3 e2 Qa2 Bd6 Re3 Qe7 Nfd1 Ra4 Nb5 Ng3 Na7 Nh6 Nb2 d2+ Kf2 e1N Ba6 Nc2 Rf1 Be6 c8R Nd7 Rb8 d1Q Rb5 Nb6 Kg2 Na8 g5+ Kf7 f6 Kg6 f5+ Kh5 f7 Rc4 f8R Ne2 f6 Nf5 f7 Ng7 g6 Bc7 Rf2 Bg4 Rf6 Ng1 Kf2 Qd2+ Kf1 Nd4 Qa1 h3 Qe1 Bd1 Qg3 Rg8 Qe5+ Ngf5 g7 Kh4 Qd6 Qh2 Qd8 Ne6 Qb8 Rh8 g8R Nfg7 Nc8 Rd4 Na7 Rh5 Rh8 Rd2 Rhh6 Qd7 Rhg6 Rg5 Rf4+ Rg4 Ra4 Rb4 Rf6 Re4 Rg8 Rc4 f8N Qc8 Nh7 Qb7 Rgf8 Qe2+
2Rn1br1/3NkbR1/N2pN3/p2n4/NQ2b1P1/pr1RqpN1/8/K2bB1q1 w - - 0 1 legal: proof: a4 c5 h4 b5 d4 cxd4 f4 bxa4 c3 e5 e3 exf4 Bd3 g5 Bc2 d3 hxg5 dxc2 Kd2 a5 b4 f5 g4 h5 g6 f3 g7 a3 b5 d6 e4 h4 c4 f4 c5 h3 c6 h2 b6 f2 c7 f1B e5 f3 e6 Nf6 g8N Bh3 e7 Rh7 b7 Nc6 b8N Ba6 Ne2 Bb7 Qe1 Bg7 Ng3 Bf1 Na6 Be2 Nc3 Rh5 Rb1 Rb5 Rb3 Bd1 Na4 Qd7 Re3 Rb4 Kd3 Rc8 Qc3 Rb3 Rhe1 h1B Bd2 Kf7 e8N c1Q R1e2 Kf8 Be1 Bg2 Re7 Qg5 R2e3 Bf1+ Kd2 Qd8 Kc1 Bc4 Qb4 Qc5 Rd7 Qe7 Rd3 Qe6 Re7 Qg1 Rd7 Rd8 c8R Qe4 Nec7 Qee3+ Qd2 Re8 Re7 Nd8 Rd7 Rc3+ Kb1 Rb3+ Ka1 Be4 Qb4 Be6 Re7 Nd5+ Nf6 Bh6 Rh7 Bf7 Nd7+ Ke7 Ne6 Rg8 Rdc3 Qgf2 Rd3 Bf8 Rg7 Qg1
N3B1N1/Br1P3n/3KB3/kBq5/4pnQp/1b1Nn3/1bp1p1rR/nB2q3 w - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 e4 dxc4 h4 f5 Ra2 fxe4 Ra3 g5 hxg5 bxa3 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Ke5 h5 f4 c5 d4 e3 g4 c3 a5+ Kc6 g6 b5 g7 a2 f5 a1N a6 Kb6 a7 b4 d5 e2 d6 c2 d7 b3 g5 h4 f6 c4 f7 b2 g6 Na6 Rh2 Nf6 g8B Nb4 g7 Nh7 Nf3 Bb7 Nc3 b1Q Be3+ Ka5 Na4 Bd5 Nb6 Qc8 Ne1 Qc5 Nd3 Rb8 a8B Rb7 Bg1 e6 Bf2 Be7 f8N Bg5 Ng6 Bc1 Bf7 Rg8 Ne7 Bb2+ Bd4 Qc1 Bg6 Qd2 Be8 Qe1 Kf4 e5+ Kf5 Be4+ Ke6 Nd5 Bf2 Ne3 Bg1 Rf8 g8B Rf2 Bgf7 Rg2 Ng8 Bc6 Bg6 Ba4 Bf5 Ra7 Bd5 Bb3 Na8 Rb7 Bfg6 Qd4 Kd6 Qdc3 Bc6 c1N Bb5 Qc2 Qd2+ c3 Bf5 Nd5 Qg5 Ne3 Be6 e4 Qg4 Ba4 Ba2 Bb3 Bf2 Ba4 Bb1 Bb3 Nc5 Nd3 Bg1 Nf4 Nd3 Rg3 Bh3 Rg2 Bf2 Nd1 Ba7 Ne3 Qg7 Qcc1 Be6 c2 Qg6 Qcd2 Qg7 Qc3 Qg4 Qc5+
4q2B/3p4/2Nbb1bn/1Bq2N1q/NN1Pn1k1/1p1Krpn1/1p4RB/N6Q w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 a4 gxh4 Kf2 a5 Ke1 axb4 Ra3 b3 Ra2 Ra5 Ra1 Ra8 Nh3 c5 Na3 b5 Rg1 c4 Ra2 b4 Rh1 Ra5 Ng1 Rb5 axb5 c3 Rb2 cxb2 Nb1 Qf6 Nh3 Qb6 Ng1 Qd8 g4 Ke7 e4 Kf6 Ke2 Kg5 c4 h5 b6 f5 e5 h3 e6 h4 e7 f3+ Kd3 f2 e8N f4 c5 f3 c6 h2 c7 h3 b7 Bg7 Nd6 Qf8 Nc3 Qd8 Na2 Bf8 Nf5 Bd6 Ne2 Nh6 Ned4 b1B+ Nc2 Re8 Rg1 h1Q Bb2 h2 Rg2 Na6 b8B Qg1 Bh8 Bb7 c8N h1Q Nb6 b2 Na4 b3 Nb4 Qh5 Qe1 Kf4 g5 Bd5 g6 Be6 g7 Re7 g8N Qde8 Be2 f1N Qd1 Qa7 Bc7 Ng3 Qh1 Qc5 Bb8 Rf7 Nge7 Kg4 Nec6 Re7 Bf1 Nc7 Be2 Nb5 Bc7 Nc3 Bb8 Ba2 Na1 Ne4 Ba7 Qe5 Bg1 Qa5 Bh2 Bb1+ Ke3 Qc5+ d4 Bf7 Bb5 Bd3 Qc1 Bdc4 Qh1 Bg6 Nac2 Re5 Na1 Be6 Kd3 Ng5 Nd5 Re1 Ndb4 Ne4 Qf1 Re2 Qh1 Re3+
1k2N2b/2Rb4/r2nR2Q/PKN3N1/2rr3p/2rp4/bpNN1rp1/1R1Bq3 w - - 0 1 illegal: No possible last move
1RB3n1/1b3Kr1/1k2B1rN/n1p1NBPq/r3qN2/Q7/rB1p1pp1/q5B1 w - - 0 1 illegal: No possible last move, all moves rejected
1nR2BbN/1N3qR1/4b3/r1nnbN1r/3pnr2/nk1P1RrQ/2N3NK/7r w - - 0 1 legal: proof: h4 c5 f4 g5 b4 gxh4 f5 cxb4 f6 a5 e3 a4 Ba6 exf6 Bd3 f5 Bc4 f4 Bb3 axb3 Kf1 Ke7 g4 Kd6 Kg2 Kc5 c4 f5 a4 d5 a5 b5 d3 h5 g5 d4 a6 f3+ Kh2 f2 e4 f1R g6 f4 a7 b2 g7 h3 e5 b3 e6 Kb4 c5 f3 c6 h4 c7 f2 e7 Rh5 e8N Qd5 Bg5 Bd6+ Bf4 Ne7 g8N Be6 c8N Be5 Nd2 b1B Qf3 b2 Nb6 Ba2 Ngf6 b1R Ndc4 Kb3 Ng8 b4 Ng7 Rbe1 Rd1 Re3 Nc8 Qb7 Nf5 Nd5 Qg3 Qf7 Ne2 Rf3 Be3 Rg1 Rd2 Rf4 Nge7 f1R Qf3 Rg3 Ng6 Rd1 Rg1 Rf1 Kh1 h2 N8d6 Re4 Qg2 Ka4 Na5 b3 Nb5 b2 Nge7 Bd7 Bg5 b1N Qh3 Ne3 Ng6 Qb3 Nb7 Rgf3 Nb5d6 Na3 Na5 Qb7 Nc6 Bg8 Bf6 Kb3 Nb4 Bde6 Qg4 Qf7 Be7 Nd5 Bf8 Ree3 Kg2 h1N Nef4 Ng3 Rf2 Rd1 Nh8 h3+ Kh2 Re4 Nc2 Rf1 Rgg2 Rfe1 Rf1 Rfe3 Kg1 h2+ Kf2 h1N+ Kg1 Rb1 Qh3 Nf2 Kh2 Rf3 Nfg6 Ref4 Ngh4 Nge4 Rg5 Rg3 Rg7 Nc5 Ng2 Nfe4 Rf2 Nc6 Rf3 Rb8 a8R Rb5 Nb7 Ra5 Rd8 Nb8 Rc8 Rh1+
2Nb1k1q/q1n2B1b/2B1r1Q1/1n5p/2bB2B1/1Nq1nr1P/K1R1qB2/1N1q3n w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 f4 g5 f5 a5 Ra3 axb4 Rf3 Qb6 Rf2 Qd8 Rf4 gxf4 Kd2 e5 g4 h5 c4 b5 Kc2 d5 Kb2 d3 c5 d4 h3 f3 g5 d2 a5 f2 f6 e3 a6 b3 g6 e4 a7 d3 c6 e2 c7 e1Q g7 b4 Nc3 e3 Qc2 d1N+ Ka1 d2 Be2 f1Q Bd3 b2+ Ka2 b1N Nb5 e2 Qc5 b3+ Ka1 b2+ Ka2 Na6 Qb4 Na3 Be4 b1B+ Kb3 Nh6 g8B Ng4 Qd6 Ngf2 Nc3 Be7 Rh2 Nh1 Bf3 Qef2 Bb2 e1Q Nge2 Rh6 Nd4 Bh7 Bg4 Qee3 Bd5 Be6 c8N Nb5 Ka2 Nac7 Nb1 Kf7 Qa6 Qh8 Bc4 Ke8 f7+ Kf8 Qb6 Bd8 Bc3 Kg7 f8B+ Kf7 Bfb4 Kg8 Ba5 Kf8 Qc6 Rf6 Bb6 Rf3 Nb3 Q1e1 Be5 Qc3 Bf6 Rb8 a8B Qfg1 Be3 Rb6 Qe4 Qef1 Qg6 Rc6 Bb6 Qgd4 Bh4 Ne3 Be1 d1Q Rc2 Bf7 Bf2 Qfe2 Ba7 Rcf6 Bc6 Qb6 B4d5 Qb8 Bd4 Bfg8 Be4 Bc4 Bed5 Qb6 Bg8 Re6 Bf7 Qa7+
4k3/Kp2n1Q1/1B5r/1R3qN1/NqnR1Rqb/1b2b2N/1PNrnNn1/nb6 w - - 0 1 illegal: No proof kernel
4B3/q1K2B1b/p4pb1/1RBN4/P1kNqrB1/n3b1q1/1qrq1Q1B/1rN1n3 w - - 0 1 legal: proof: f4 e5 d4 exd4 b4 g5 g4 b5 c4 bxc4 a4 gxf4 g5 h5 Ra3 Bb7 Rg3 Bc8 Rg4 hxg4 Kf2 Ke7 e4 Ke6 h4 c5 h5 d5 g6 a6 b5 f3 Kg3 f6 Kf4 c3 h6 d3 g7 d4 b6 c2 h7 f2 b7 c4 e5 Kd5 e6 d2 e7 c3 e8B g3 Bh3 f1R+ Qf3+ Kc4 Ke4 d1B Qf2 g2 Ba3 c1Q Bg6 c2 Bgf5 d3 Qe1 d2 Qg3 Ne7 g8B+ Nd5 Bb2 Nd7 b8B Bh5 Qf2 d1Q Bfe6 Bh6 Bhf5 Be3 Ba1 Nb6 Bh3 Qb2 Bd7 c1Q Bh2 Rb8 Nf3 g1Q Bf7 Qg3 Bde8 Qcd2 Nd4 Q1e2 Nc3 Bg6+ Bf5 Be6 Na2 Nf4 Nc1 Nd3 Rg1 Rg8 h8N Ne1 Rg2 Bh7 Ng6 Rb7 Rg1 Qa8 Ne7 Rg7 Nd5 Rg6 Bg8 Bf7 Bg4 Rb8 Bed7 Be8 Bf7 Rc8 Kf5 Rh6+ Ke6 Rh4 Bgh5 Rf4 Kd6 Qed3 Bhg4 Qe4 Rg2 Rc5 Bc6 Rh1 Kc7 Rg1 Bg8 Beg6 Bf7 Rb5 Bce8 Rb3 Bf3 Rc3 Bg4 Rf1 Rg1 Rc2 Rg2 Kc5 Rg1 Nc4 Rg2 Na3 Rg1 Qa2 Bc3 Kc4 Bb4 Qb2 Bc5 Ng2 Na2 Rb1 Nc1 Qdb4 Rd1 Ne1 Rd3 Qd2 Rb3 Qgg2 Rb7 Qg3 Rb5 Qa7+
R2RN3/5k2/1b2pr1r/b1NBpn2/1Nrn1N1R/4r3/n1N1Pq2/K3rrQb w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 d5 hxg4 d6 f6 Ba3 cxd6 Bc1 d5 Bf4 d4 Be5 fxe5 Kd2 g5 Kc1 b5 Kb2 d5 h4 e6 f4 d3 a4 d2 c4 b3 c5 d4 a5 d3 f5 g3 h5 b4 c6 g4 a6 g2 c7 g3 f6 Qd4+ Nc3 Ne7 h6 Bb7 c8N Kf7 a7 Nf5 h7 Nc6 Qc2 d1R Rh6 d2 Nh3 g1R Ra6 g2 Nf4 Qf2 Rh3 Re1 Qc1 d1R Nb5 Rd4 Nb6 Rc4 Rh5 Ncd4 Kb1 b2 Rh4 Re8 Ka2 b1R a8N Rb3 Nbd5 Re3 Na3 b3+ Ka1 Bb4 Nc2 Ref8 Nac7 Ba5 Ndb4 Bd5 Ra8 b2+ Ka2 b1N Ne8 Nc3+ Ka1 Rh1 Rd8 g1B Bg2 Bc6 Bd5 Na2 Qd1 Nc1 Ra8 Rhg8 h8R Rg6 Rg8 Rf1 Rd8 Rh6 Qe1 Qh2 Qg3 Bf2 Qg1 Re1 Qg5 Rhf1 Qg1 Qg3 Ng7 Nb5 Nfd3 Kg6 Ra8 Ree4 f7 Bfb6 Nc5 Re3 Bg2 Qf2 Rh8 Rg8 f8N+ Kf7 Ng6 Nbd4 Nf4 Bb7 Ngh5 Be4 Nf6 Rgg6 Rhd8 Bc6 Ne8 Rf6 Bh3 Bh1 Bg2 Nc6 Be4 Ncd4 Bd5 Na2+
rkqB3N/3pB2r/3K3n/1b1bpr2/3P2qr/2R1B1R1/1Q1rr1n1/b2BB1R1 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 a4 bxa4 b5 hxg4 Nc3 f5 Na2 fxe4 Nb4 cxb4 Ke2 g5 Ke3 a5 Kd4 g3 Kd5 g2 f4 e3 h4 g4 c4 a3 b6 a4 d3 g3 c5 e2 b7 e1R h5 a2 h6 a3 f5 b3 h7 b2 f6 b1B c6 Na6 b8B Nc5 c7 Bb7+ Kd4 Bg7 c8R Re2 Rh2 Bd5 Rc6 Qc8 Qe1 Kd8 Nh3 g1Q+ Qf2 g2 Bg3 Nh6 Be3 Ne6+ Ke5 Nf4 Ng5 Bc2 Rh5 Ba4 Rh3 Bb5 Rc3 e6 Rac1 a1R Kd6 Raa2 f7 Rad2 f8B a2 Rd1 a1R Nf7+ Ke8 Be7 R1a4 Rb1 Rf8 Nh8 Rf5 Bgh4 Bd4 Rg3 e5 Rc6 Ba1 Rc3 Qh2 Rd1 g1R Qg2 Re4 d4 Rh1 Rdc1 Qg1 Qf2 Re1 Be2 Ng2 Bd1 Ree2 Bd8 Qh2 Bhe7 Qh5 Ba5 Reh4 Rb1 Rd3 Bb4 Qg4 Ba5 Ree1 Qb2 Rd2 Bad8 Ng8 Bb3 Ree2 Rg1 Rhh5 Bd1 R1h4 Ba5 Rd3 Rc4 Rh6+ Ng6 R6h5 Be1 Rdd2 Rc3 Rh6 h8B R6h5 Bf8 Rh7 Bf6 Nh6 Nh8 Qc4 B6g7 Kd8 Bf6+ Kc8 Bd8 Kb8 Bfe7 Qc8
1rB3bB/1RnKB1n1/1qn2R1B/2b1n3/1p1B2N1/1P6/QR3bpr/qb3k1q w - - 0 1 legal: proof: g4 d5 e4 a5 c4 dxc4 b3 h5 e5 hxg4 e6 a4 Nc3 a3 Na4 fxe6 Nb6 e5 Na4 e4 Nb2 axb2 Ke2 Kd7 Ke3 Kd6 Kd4 b1B a4 e5+ Kc3 Kc5 h4 b5 f4 g5 d3 e3 a5 b4+ Kb2 Kd4 a6 c5 a7 g3 h5 g4 h6 g2 h7 e2 f5 e1Q f6 e4 f7 g3 Ra6 c3+ Ka1 c4 Rah6 c2 Kb2 e3 Nh3 g1B Rh2 e2 Rf6 Bc5 f8B Na6 Bfh6 Be6 Nf2 Qb6 Qd2 Ne7 Bh3 Nf5 Ng4 Rab8 a8R Ng7 Ra7 Bf2 Rb7 Qh1 Rg2 e1Q Rh2 Rhf8 h8B Bg8 Qe2 Nc7 Bce3+ Kd5 d4 Ke4 d5 c1N Qd2 Ne2 d6 Nd4 d7 Nc6 d8B Rf7 Bd4 c3+ Ka1 c2 Kb2 Rd7 Be7 c1N Rg2 Rd5 Rh2 Rh5 Rg2 Ba2 Kc2 Nd3 Rh2 Nde5 Rg2 Rf5 Rh2 Kf3 Rg2 Ng6 Kd3 Qa1 Qb2 Bb1+ Qc2 Nce6 Kc4 Nge5+ Kd5 Rf4 Qb2 Rf5 Qa3 Ke2 Qa2+ Kf1 Bc1 Rf3 Bh6 Be1 Rd2+ g2 Rb2 Bf2 Bc3 Bce3 Kd6 Nc7 Bd4 Rf5 Bf4 Rh5 Bh6 Rh4 Nh2+ Ke1 Bc8 Rh3 Ng4 Rh2 Rf4 Kf1 Rf6 Ng6 Bc3 Bd4 Kd7 Bc5 Bd4 Nge5+
B1R2b2/3r2nB/1r2R2B/1q6/BbBQKp2/1b1pnP1r/1R1N1bnr/n1k5 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Na3 d3 Nb5 hxg6 Bd2 g5 Nd4 exd4 Bc1 g4 Kd2 Ke7 h4 Kd6 c4 Kc5 e4 d5 a4 g5 e5 b5 a5 f5 f3 b3 h5 Kb4 h6 f4 h7 b2 a6 b1R e6 g3 a7 g4 e7 g2 e8B g3 c5 Qa5 c6 Na6 c7 Be6 c8B Rb2+ Qc2 Nh6 Bg6 Nf5 Rh2 Nc5 Rh4 Ng7 Rh6 Nb3+ Kd1 d2 Ke2 d1N Kd3 Ne3 Nh3 g1B Ng5 g2 Bb7 Rd8 a8B Bf2 Qc6 g1B Be2 Rd7 Bf7 Ng2 Ra2 Na1 Ne4 Kb3 Qc8 b4 Nd6 Qb5+ Nc4 Be1 Qd8 Bgf2 Bd1+ Rc2 Bb2 Bd2 Ke2 d3+ Kf1 d4 Be4 Bd5 Re6 Bde1 Ba3 d2 Ke2 Kc3 Qb6 b3 Be7 b2 Bg5 b1R Bh6 Rcb2 Ba4 d1N+ Bec2 Bd2 Bcg6 Rc2 Rb2 Nde3 Bd3 Bde1+ Nd2 Bb3 Bc4 Kb4 Kd3 Ka3 Ke4 d3 Nf1 Beb4 Qd4 Rcc1 Nd2 Rh1 Bg6 Rh3 Bcd5 Rbh1 Bc4 R1h2 Rb1 Rg8 h8R Ka2 Bh7 Ka3 Re1 Ka2 Re2 Ka3 Qa7 Kb2 Qd4+ Kc1 Rg6 Bfd6 Re6 Rb8 Rc8 Rb6 Nb1 Ng4 Rb2 N4e3 Nd2 Bf8
5B1B/r3n1rp/NRp1n1nP/1b2k1B1/Qp3q1n/1b2b1BN/2N1K3/1nr2B2 w - - 0 1 illegal: No possible last move
n4nr1/RN1N4/4kN1p/1pbr1qR1/5Kb1/n4B1R/RP1r1Qrp/3rq1R1 w - - 0 1 illegal: No proof kernel
5N1R/n1p1q1nK/N2p3Q/1p1r4/k2q2N1/1n2q1R1/b1RPB1q1/r2Nb1Nq w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 g5 h4 gxh4 b5 Bg7 c5 Bf8 Bb2 b6 Bd4 bxc5 b6 c4 b7 Bh6 Bf2 Bf8 Bb6 axb6 Kf2 h5 Kf3 f5 a4 d6 g4 Kd7 e4 Kc6 a5 Kb5 g5 h3 e5 h4 a6 h2 a7 h3 e6 Ne7 g6 Nbc6 b8R Rh5 Bg2 c3 g7 c2 g8N c1N Nh6 Nb3 Na3+ Ka4 Ra2 b5 Rc2 Bg7 Qb1 Bf6 Bf1 Bh4 Be2 Be1 Nc4 Qh8 Ne3 Qd4 Qb2 Bd7 Qc3 Be8 Nd1 Bf7 Rg8 Rg5 Qe3 Rh5 Bd3 Rg5 Ne2 Rh5 Rhg1 h1Q+ R1g2 h2 Rh8 Qg1 Ng4 h1Q Bc4 Rg8 a8N Na7 Bd3 Qh4 Bc4 Qgh1 Ng1 Rb8 Bf1 Rb6 Be2 Ra6 Qf2 Qhf6 Qh4 Qfe5 Qf6 Qh4 Rg3 Qee3+ Kg2 Rg5 Qg7 Qh7 Qh6 f3+ Kh3 f2 Kh4 f1Q Nb6+ Ka3 Ra8 f4 Nd7 f3 Rh8 f2 Nb8 Ra4 Na6 Rd5 Nh3 Bg8 Ng1 Nf5+ Kh5 Qg2 e7 f1Q e8N Qhe7 Kg6 Ng7 Nef6 Qh1 Nh7 Qfg2 Nf8 Be6 Nc5 Kb4 Kh7 Ra1 Na6+ Ka4 Rc1 Rc5 Rc3 Bc4 Rc2 Rd5 Ne5 Na5 Ng4 Ba2 Bc4 Nb3 Bd3 Qh5 Be2 Qhh1
k2KnBq1/5b2/rb2qpB1/R1Rr3q/1R1p1pr1/3PBR2/N1r5/1R1n1Qb1 w - - 0 1 illegal: No possible last move
k1n2bN1/1q2qK1b/1q1Q2r1/N3bN2/5p1r/2p1BrN1/1NPp1b2/RB2B2n w - - 0 1 illegal: No possible last move, all moves rejected
2Q2rbR/1n2K1Rp/1pb1pNN1/1nN3B1/3q1q2/1Rb2r1k/5RnP/2nR3r w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 c5 Bd3 cxd4 Bc4 g6 Be6 fxe4 f5 Nc6 f6 Nb8 Bf5 gxf5 Kd2 Kf7 g4 Kg6 a4 Kg5 c4 Kh4 f7 d5 g5 f4 a5 d3 g6 d4 a6 e3+ Ke1 e2 Kd2 e1N g7 b3 c5 b2 c6 b6 c7 f3 a7 f2 Ra5 f1Q Qe2 Ng2 Qd1 Nd7 Ra4 Ngf6 g8N Nh5 Ra6 Bb7 c8R Nc5 Ne2 Ng3 Rc7 Bg7 f8R Bc6 Ra4 Nb7 Ra3 Kh3 Nbc3 b1B Rb3 Ba2 Qc2 Rc8 a8R Qf4+ Kd1 d2 Nf6 Rg8 Nce4 Qd7 Rf7 Rcf8 Nc5 Rh8 Qc3 Qd5 Kc2 d1R Qc4 d3+ Kc3 d2 Kb4 Rf1 Re8 Rf3 Rd1 Rhg8 Rec8 Qdd4 Rd7 Bd5 Kb5 Bh8 Rg7 Be4 Rf1 d1N Rf2 Bd5 Bd2 Be4 Rd5 Nc3+ Kc6 Nb5 Kd7 N5d6 Qc1 Nb5 Rd6 Bc6+ Ke6 Qh4 Bg5 Qhf4 Nc3 Ne2 Ncd5 Na7 Qc4 Nc1 Qa6 Nb5 Rb8 Na5 Qc8 Nb7 Nc3 Qa4 Rd1 Qad4 Ne2 Rd8 Ng3 Rgf8 Nf5 Rd5 Nce4 Rc5 Nh4 Rcc3 Ra8 Rce3 Ng6 Re1 Rb8 Rh1 Nc5 Bd5+ Kd7 Bg8+ Nd5 e6 Ke7 Bb1 Ra8 Be4 Nf6 Bc6 Rf7 Qa1 Nd5 Rd8 Qd7 Qaa4 Qc7 Bc3 Rg7 Bf7 Nf6 Qad4 Rb8 Rd6 Rh8 Bg8 Qb8 Rd8 Qc8 Rf8
K2Q1n2/2B1N3/pb1nB1n1/N1pn4/1p2BBB1/bn5R/1P2rkb1/1bq1N2r w - - 0 1 illegal: No proof kernel
1N2Nn2/b1qrBrp1/1kB3nB/2p4b/1pB3K1/QPB2N2/1R5r/qb2r1b1 w - - 0 1 illegal: No possible last move
1R3nrq/2n1bN2/qRN1bp2/2R1NR2/K2pr2r/4p1pR/k1B1P3/2r2Q1r w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h6 Bg5 g6 Bf6 gxf5 g5 f4 g6 Ra3 Bh4 Ra8 Bg5 hxg5 Kd2 e5 c4 Ke7 Kc2 Kd6 Kb3 Kc5 a4 b5 h4 d5 a5 g4 h5 d3 a6 e4 a7 d2 g7 d4 h6 e3 h7 g3 Nh3 f6 Nc3 f3 Qc2 d1Q Ra3 f2 Bg2 f1R Nd5 Qa1 Nhf4 Na6 Ne7 Be6 Qb1 Nc7 Nc6 Ne7 g8R Ng6 Ra6 Be7 Be4 Nf8 Ng6 Rf4 Bc2 Re4 Rb6 Qa6 Nge5 Rb8 a8R Rc8 Kb2 b3 Rab8 b4 Rg5 Rg8 h8N Qe8 Kc1 b2+ Kd1 b3 Nhf7 Rh8 Rh3 Rhh4 Qc1 b1R Rf5 Ra1 Qb1 Qd8 Kc1 Qe8 Kb2 Rd8 Qf1 Rc1 Na5 Rc8 Ka3 b2 Kb3 b1R+ Ka3 Qb7 Nac6 Qd8 Ka4 Qe8 Nd6 Qh5 Ndf7 Qh8 Qf2 Rh1 Qf1 Rc1 Nfd8 Kd6 c5+ Kd5 Ndf7 Re8 Na5 Qa6 c6 Nb5 c7 Kc5 c8R+ Nc7 R8b7 Nh7 Rcb8 Rf8 Rb3 Rg8 R7b6 Nf8 Ra3 Qc8 Nac6 Qb7 Nd7+ Kc4 Rab3 Qc8 R3b5 Qb7 Ra5 Qa6 Nde5+ Kc3 Bb3 Kb2 Bd1+ Ka2 Bc2 Qd3 Rc5 Qa6+
bn1r4/rRB1N1N1/1Kpqp1n1/1q1Npp2/3n4/5P1N/5BBn/Q1Nkb1q1 w - - 0 1 legal: proof: b4 b5 e4 g5 h4 gxh4 a4 d6 e5 dxe5 c4 bxc4 b5 a5 Ra3 Bh3 Rb3 Bc8 Rb4 axb4 Ke2 Kd7 Ke3 Kd6 d4 Kd5 g4 h5 g5 f5 g6 c3 g7 b3 b6 h3 b7 b2 f3 h4 a5 h2 a6 c6 a7 h3 Nd2 b1Q Bg2 c2 Kd3 Qd6 Nb3 Rh7 Be3 c1N+ Kc3 Rh8 Bf2 Ne2+ Kd2 Kc4 d5 Nd4 Nc1 Kb4 Ke3 Qb2 Kd3 Ka3 Kc4 Qbb4+ Kd3 Kb2 Qe1 Qa5 Kc4 Kc2 Qc3+ Kd1 Qa1 Qdd8 d6 Qb5+ Kc3 Qc7 d7 Qd6 d8N Rh7 Ne6 Rh8 Nf4 e6 Nh5 Ne7 g8N Ng6 Ne7 Bh6 Ng7 Rd8 Bg3 Bf4 Be1 Bg3 Bf2 Na6 b8B Bb7 Bc7 Nb8 Be3 Qb1 Kc4 Be1 Bf2 Qb6 Nge2 Qb2 Rg1 h1Q Nf4 h2 Rf1 Qg1 Nh3 Qd7 Kc5 h1N Nb3+ Qb1 Nc1 Qd3 Kb6 Qd6 Bh4 Qc4 Rf2 Qcf1 Rb2 Nf2 Rb1 Ng4 Bf2 Nh2 Rb5 Na6 Rb4 Rab8 a8N Qb5+ Ka7 Rd7 Nb6 Rbd8 Nbd5 Ba8 Rb3 Nb8 Rb4 Qd3 Rb7 Qb5 Ba5 Na6 Rc7 Rb8 Bb6 Rdd8 Ba5 Rb6 Rb7 Nb8 Rd7 Qc4 Rb7 Rb4 Bc7 Ra4+ Kb6 Ra7 Qb2 Qcf1 Qa1 Qb5+
N1B5/kNn1pb2/1r1pN1pr/n2BN1n1/1B1qp1n1/K3P1pn/2Q1R3/N5b1 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 c5 g5 cxd4 Ra3 h6 Re3 hxg5 Re6 g4 Re4 fxe4 Kd2 b5 h4 g6 c4 g3 Kc2 d3+ Kb2 d6 f4 Kd7 h5 Kc7 h6 Kb7 h7 d2 a5 b3 f5 b4 a6+ Ka7 f6 Qb6 c5 Nh6 c6 Bg7 c7 Ng4 Na3 Be6 c8B Bf7 Qc2 Nc6 Nf3 Na5 Rh2 Rb8 Ne5 Bh6 Rf2 Be3 Rg2 Bg1 e3 Qc5 Bc4 Rb6 Bd5 Qc4 Re2 d1N+ Kb1 b2 Bd2 Qc5 Ka2 b1N Bc3 Ndf2 Bd2 Rd8 h8N b3+ Kb2 Nh3 Bb4 Be8 f7 Nc3 f8N Qd4 Ne6 Bf7 Qd2 Rf8 Nc2 Nb5+ Qc3 Rd8 Na1 Nc7 Ka3 b2 Qc2 b1N+ Ka2 Nd2 Ka3 Bg8 Nhf7 Re8 Nfd8 Bf7 Nb7 Rh8 Nd3 Rh6 Ne5 Rc6 Bc3 Nf3 Bb4 Kb6 a7 Nfg5 a8N+ Ka7 Bd7 Ra6 Bc8 Rb6
1n1R1bq1/Bp2kp2/3rb2r/r1p1p1nN/4b3/1KR1P2N/1NRN2pp/2N4Q w - - 0 1 illegal: No proof kernel
1n3r1b/n2Bp2Q/2p1Pp2/Nr1N4/rq3p2/p7/p1b3KR/BBqk1BBN w - - 0 1 illegal: No proof kernel
2K1N3/n1b1pqR1/4pB2/NkN1nB1Q/1n1r4/pP5b/1p1Q2N1/qq4N1 w - - 0 1 legal: proof: c4 a5 e4 g5 a4 d5 cxd5 b5 h4 bxa4 b3 gxh4 e5 a3 e6 fxe6 Ra2 a4 Rb2 Ra6 Bxa6 axb2 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 c5 d4 h5 f4 h3 g4 a3 d6 Kc6 f5 h2 d5+ Kb6 d7 h4 f6 h3 f7 c4 Kd4 c3 d6 c2 g5 Rh5 g6 Rc5 g7 Qe8 d8Q+ Kc6 d7 Rf5 Bg5 c1N Qh5 Nf6 g8N Re5 Nc3 Rb5 Nd1 Nd5 Bd3 Ba6 Bf6 Bg7 f8N Qf7 Ne3 Nb4 Bf5 Ncd3 Ng2 Ne5 Qa5 Rb7 Qd5+ Kb6 d8N Rd7 Nb7 Bf1 Na5 Ka6 Kc5 N8c6 Qdd1 Rd4 Qd2 Bh6 Nd7 Bf4 Bg5 Bg3 Ngf6 Bf4 Ne8 Bg3 Nf3 Bf4 Rg1 h1Q Bf6 h2 Ne3 Bh3 Rg7 Qa1 Ng2 h1Q Ng1 Ka7 Ne2 Qhb1 Ng1 Ka8 Kb6 Bh2 Kc7 Ka7 Nh4 Ka6 Nc5+ Kb5 Kc8 Ng6 Na6 Bc7 Nc5 Nge5 Ng2 Na7+
8/q2q1KRB/3B1BR1/q1nbQ1Nr/6qP/1B2qb2/1Bb1k1n1/2Qn2rn w - - 0 1 illegal: No possible last move
3q2kq/Q1bq3r/2N4R/1Rn3B1/1K2RQn1/b5bP/3R1N1b/1b1Rbqr1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 f5 c4 Kf7 b4 g5 e4 a5 h3 d5 e5 f4 b6 d3 Kc3 a4 b7 f3 c5 g4 c6 f2 b5 f1Q b6 d2 c7 a3 Ra2 d4+ Kb3 d3 Kc3 Bf5 c8R Rh7 Rb2 a2 Kb3 a1B Rh2 Na6 b8R Nh6 e6+ Kg8 b7 Ba3 e7 Nc5+ Kc3 Ra7 Qc2 d1Q Rc7 d2 Ne2 g1B Rf2 g2 Qa4 g3 Rc6 Bh2 Qf4 g1B Nd4 Ng4 Rh6 g2 Nc6 Bg3 Rf3 Qde2 Rd3 d1Q Nd2 B1f2 Ne4 g1B Rdd6 Qa4 Rd1 Be1+ Bd2 B1h2 Nf2 Bb1 e8R+ Kg7 Re4 Kg8 Ne5 Qd7 Nc6 Ne6 Kb3 Rg7 Ra2 Be5 Be3 Bc7 Rad2 Nc5+ Kc3 Bc1 Kb4 Ra1 Qe5 Qa6 Bg5 Rh7 Qf4 Qa8 Rc8 Na4 b8Q Nc5 Qa7 Bb2 Rb8 Ba3+ Kc3 Q8e8 Rb5 Qad8 Qd6 Qe5+ Qd4 Qh8 Qf6 Ne5 Qf4 Ng4+ Ne5 Qh1 Rbb6 Bc2 Rb5 Qg2 Rdb1 Qh1 Nd3 Bef2 Kc4 Qg2 Rh1 Re1 Nc6 Bb1 Rg1 Re3 Rgd1 Re1 Nde5 Rf1 Nd3 Be1 Nf2 Rh1 Nb4 Rg1 Nc6 Bb2 Kb4 Qf1 Nb8 Bc1 Nc6 Ba3+
bbb4b/P2nkrR1/b2Rn3/1B3bR1/3QRrb1/n1q2BR1/4K2Q/2Nb4 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 g3 Nc3 exf6 Nb1 f5 Qb3 f4 Qa4+ Nc6 Qd1 Nb8 Bb2 h5 Bd4 Qd6 Bf2 Qd7 Qa4 gxf2+ Kd1 Ne7 g4 Ng8 Kc1 Nc6 Qc2 Nb8 Qd1 Qd8 g5 Qf6 Na3 Qf5 Nc4 Qd7 Ne5 Qd8 Ng4 hxg4 e4 b5 d4 f5 Kd2 c5 h4 c4 a4 c3+ Ke2 b3 e5 c2 e6 c1N+ Kd2 g3 d6 b4 d5 b2 g6 b1B h5 f3 h6 f4 e7 b3 h7 b2 g7 g2 a5 Nd3 a6 Qc7 a7 Nc5 Ra5 Be4 Bc4 b1B Qc1 f1B Be2 f2 Ra4 f3 Nh3 g1B Ba6 Bh2 Qc2 Ne6 Be2 Nh6 g8R Nd7 Qd1 Nf7 Rg5 Nfe5 Nf4 Bg7 Rhg1 Rf8 h8Q Bh3 R1g3 f1B Nd3 f2 Bf3 Be2 Nc1 f1B Qh7 Bef5 Re4 Rf7 Ke3 Bea6 Qd4 Bfg2 Kf2 Nc4 Ke2 Bhg4 Qh5 Bg1 Qh2 Bh8 Rg7 Bc2 Rg5 Ndf8 Rg7 Kd7 e8B+ Kd8 d7 Ke7 d8R Na3+ Bb5 Nd7 Rdg8 Qc3 Rg5 Be3 R8g7 Bf4 Rh7 Bb8 d6+ Kf8 Rhg7 Bd1+ Kf2 Ne5 d7 Ke7 d8R Nd7 Bd3 Bd6 Ke3 Rb8 Kf2 Rb4 Bb5 Bb8 Rf8 Bf1 Rd8 Bd3 Ke3 Bc4+ Kf2 Bd5 Kf1 Ba8 Kf2 Bc2 Ke2 Bd1+ Kf1 Rb2 Bg2 Nf6 Rd6 Nd7 Bh1 Qc4+ Ke1 Rf2 Bg2 Rf4 Bf3 Qc3+ Kf2 Bc2 Ke2 Bd1+
2b1N1Kq/2R1bQ2/2B2N1b/1n1bk3/2b1Nr2/2b4P/qQR1q3/1N1nnn1N w - - 0 1 illegal: No possible last move
2N4r/r1Q2q1N/n1q1rrnN/1P1nqn1k/3bQ1RN/4N3/1q2K1nB/5B2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 b4 h5 Ra3 f4 Rc3 Ba6 Rc6 Bb5 Rg6 Bd3 Rg5 Bf5 gxf5 Qc7 Rg2 Qd8 Rg4 hxg4 c4 Kf7 e4 g5 h4 d5 b5 a5 h5 a3 f6 g3 e5 a4 c5 f2+ Kd2 d3 h6 Kg6 c6 g4 c7 f3 c8N a2 f7 a1Q h7 g2 e6 g3 e7 d4 e8N a3 Na7 a2 Na3 Qb6 Ng7 Na6 Nc8 Nh6 Qb3 Ra7 Ne8 Qc6 Be2 f1Q Qb4 f2 Qe7 Nf5 Qe5 Bg7 f8Q Qb2+ Nc2 a1Q Nf3 g1N Qa3 g2 Nh2 Nh3 Nf6 g1R Qa5 Nf4 Nfg4 Kh5 Qe8+ Ng6 Qe4 Rg3 Qc7 Re3 Rg1 Bf6 Qf3 Re6 Qe4 Bg7 Nf3 Be5 Ne1 Bg7 Kd1 d2 Nce3 Be5 Bc4 Bf6 Nh6 Bg7 Bd5 Qfc4 Rg3 f1R Rg4 Qcb3+ Ke2 d1N+ Bd2 Be5 N1g2 Nc3+ Kd3 Q3a2 Bc4 Nd5 Ke2 Bg7 Nh4 Rf3 Nc2 Bf6 Bf4 d3+ Kd2 Qe5 Bh2 Q1b2 Ke1 d2+ Ke2 d1N Bd3 Rg8 h8N N1e3 N8f7 Ng2 Ng5 Rh8 Bc4 Qaa3 Nh7 Qe7 Kd1 Qf7 Ne3 Be7 Bf1 Bc5 Nc2 Bd4 Ke2 Nfe7 Qe3 Rff6 Qe4 Qb1 Ne3 Nf5 Ng5 Qb3 Nh7 Qb2+
1Nn1qrN1/5Qq1/Nr1r4/KRn3pr/2q3R1/6r1/1b1P1BbQ/k2nN2N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 b4 Kd7 h4 Kd6 e4 c5 e5+ Kd5 h5 g5 e6 a5 e7 f5 e8Q a4 h6 a3 h7 c3 b6 Kc4 b5 a2 b7 f4 b6 f3 Rh5 c2 Qc6 Kb3 Nh3 f2+ Ke2 f1N Qe1 g1R Nf2 g2 Na3 c4 Nb5 c3 Qh6 Ba3 Rb1+ Bb2 Rh4 a1Q Na3 Ka2 Nh1 Ne3 Qf2 Na6 b8N Qe8 Kd3 Nd1 Kc4 Ne7 b7 Nc5 Kb4 Bh3 Na6 Nc8 b8N Re1 Rd4 g1R Rg4 Re6 Qf7 Rg3 Ka5 Bg2 Qh2 Rf8 h8N Ra7 Ra4 Rd7 Ng6 Rd6 Ne7 Rb6 Rc4 Rf6 Ng8 Rfd6 Nb5 Ba3 Bb2 c1R Nd4 c2 Bc3 Bb2 Nf3 Ba3 Rbb4 Bb2 Rb3 Rb1 Bf6 c1Q Rg4 Qc4 Rb5 Rc1 Bd4 Rc3 Qg1 Rh3 Qf2 Rh5 Ne1 Rg3 Q2f4 Bc1 Be3 Qg7 Bf2 Ka1 Qe5+ Bb2 Qef4 Rgh3 Qh2 Rg3
q2NnbK1/1n1p3b/1bR1B1b1/2r3k1/BPq1B3/3rRQ2/4r1b1/2n1B1BQ w - - 0 1 illegal: No possible last move
4nb2/Q4r2/rrk1N1nb/R7/1Qbb3q/3B1np1/QQqB2Pq/K2R1Q2 w - - 0 1 legal: proof: c4 e5 f4 exf4 h4 c5 d4 cxd4 a4 b5 Nc3 dxc3 axb5 Qg5 h5 Qxh5 Qa4 Qh6 Qd1 Qh2 b4 h5 e4 a5 c5 f5 b6 g5 b5 d5 e5 Kd7 b7 h4 b6 a4 e6+ Kc6 e7 g4 e8Q+ Nd7 b8Q h3 b7 c2 Kd2 a3 Kc3 d4+ Kb3 g3 Ka2 d3 Rb1 d2 Qde1 d1Q Be3 c1B Bd3 f3 Bc2 f4 Bd3 f2 Rb5 f1R Kb1 f3 Ne2 a2+ Ka1 f2 Bb1 Qc2 Rb2 Ra6 Qa7 Ne7 b8Q Rh6 Bd2 Ng6 Qee5 Nf6 Nf4 Ne8 Rb5 Be6 Ra5 Bc4 Qeb2 Rh5 Q2b4 Qa4 Bf5 Be2 Nd5 Qg1 Bc2 h2 Bc3 Bch6 Nc7 Kd7 Bd2 Bd3 Kb2 a1B+ Kb1 Qc6 Qa4 Bd4 Qbb4 Rd5 Qc1 Rd6 Qa2 Qa4 Qbb2 Rdb6 Ka1 Bc4 Bd3 Qc2 Qcb1 Rd1 Qc1 f1N Qcb1 Re1 Qc1 Re7 Ne6+ Kc6 Qcb1 Kd5 Qe1 Rf7 Qd1 Bb3 c6+ Kd6 c7 Kd7 Be3 Nd2 c8Q+ Kd6 Qdb1 Nf3 Qcc3 Bc4 Qcb4+ Kc6 Qc1 Qgf2 Re1 Qg1 Bd2 h1Q Qd1 Qh5 Qe2 Qg5 Qf1 Qh4 Rd1 Qgh2
1rQ2q1Q/4N1rB/2q5/1Q1n2P1/1b1BR2p/qbnRn3/1n5K/b1k2rQQ w - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Nc3 b5 axb5 gxh4 Qb3 dxc3 Qc2 Qa5 Qd1 Qd8 Kf2 Ke7 b4 Kf6 g4 Ke5 Kg2 Ke4 c5 a5 c6 d5 g5 f5 b6 h5 e3 c2 c7 h3+ Kh2 f3 b7 f2 b5 a4 b6 h4 Ne2 f4 Ra2 f3 Bb2 c1Q Bc3 a3 Ng1 d4 Qe1 d3 Be2 f1R Qd2 f2 Nf3 Nd7 b8Q Rh7 b7 Nb6 Be5 Ne7 Qd1 d2 Nd4 Be6 c8Q Bb3 Nc6 Nbd5 Qa7 Nc3 b8Q Rg7 Bd4 Ned5 Qb5 Bb4 Ne7 Rb8 Bh5 Qf8 Bg6+ Qf5 Ra1 a2 Bh7 Qa3 Qb1+ Kf3 e4 d1N e5 Qf8 e6 Nb2 Qe1 Kf4 Rd1 a1B Rd2 Kf3 Qc1 Kf4 Rd1+ Kf3 Rd3+ Ke2 Rg1 Nb6 Rg4 Nbd5 Qf4 Ke1 Qa8 Ke2 Qg3 Ke1 Qg1 Ke2 Rf3+ Kd2 Rd3+ Kc1 Re4 Rd1 Kh1 f1N Qac6 Nfe3 Kh2 Re1 Rf4 Rf1 Ng6 Nf6 e7 Rb6 e8Q Qf7 Qh8 Qf8 Kh1 h2 Ne7 Rb8 Q6b7 Nf5 Kg2 Ne3+ Kh3 Qe8 Qbg2 h1Q+ Q2h2 Qb7 Qhh1 Qf8 Re4 Nfd5 Kh2 Qc6
1NQ1N1rN/P1KqQn2/1r1Rb3/1p3n1n/1B6/2Brb1rb/1N1N4/3nn2k w - - 0 1 illegal: No possible last move
2RR1b2/rbQR1p1P/2B1n2K/1Q2q2R/5nb1/1N1nq1b1/b1r2kBn/6R1 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 g5 Ra6 f3 Bf4 f2+ Kd2 Bg7 Nc3 Bf8 Ra1 gxf4 Ne4 h6 g5 h5 Nf6+ Ke7 Ng4 hxg4 Qb1 Ke8 Qc1 Na6 Qd1 Nb8 c4 Ke7 h4 Ke6 b4 Ke5 e4 a5 c5 d5 b6 f3 b7 Kf4 g6 Kg3 g7 a4 c6 d3 Ke3 d4+ Kd2 a3 h5 a2 e5 Qe8 h6 Na6 b8R Bb7 c7 Ra7 c8Q Nc5 b5 Ne6 h7 Nf6 g8R Nd5 b6 Ndf4 Bg2 f1B Qa4 f2 Rb1 a1B Qc7 Bc3+ Kd1 d2 Rd8 Bc4 Rh5 f1N Qb5 Ba2 Rd7 Nh2 Ne2+ Kf2 Nc1 g3 Nb3 Bb2 Kc2 d1N Kd2 d3 Ra1 Bba3 Rc1 Nb2 Rg1 Bfd6 Rf8 Qb8 Rfd8 Bf8 Rc8 Bad6 Rcd8 Nc5 e6 Rg8 e7 Nce6 Kc3 d2 e8B d1B Kd2 Bg4 Rc8 Nbd3 Rcd8 Ba6 b7 Rg5 Rc8 Rc5 Rcd8 Qc8 b8R Bb7 Qcb6 Qc7 Rbc8 Qb8 Qc7 Rc4 Be4 g2 Bf3 Kg3 Ke3 Rc1 Bd5 Rc2 Ke4 Kf2 Bc6 Bd1 Kf5 Bg4+ Kf6 Nd4 Kg5 Be5 Rh1 g1Q Bg2 Qc1 Rg1 Qe3 Qca5 Qd6 Qc7 Nde6+ Kh4 Ng7 Kg5 Qe7+ Kh6 Bd6 Na5 Q7e5 Nb3 Bde7 Rd6 Bh4 Bec6 Bg3 R6d7 Nge6+
BrN2N1k/b2Pn1r1/n2BKr1B/1pq5/7R/1QB4B/2r2q2/n3nQbr w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 a3 f4 a4 Bf5 gxf5 Qc8 Ra3 Qd7 Rd3 Qd8 Rd6 h6 Rg6 h5 Rg4 hxg4 Kf2 Kf7 e4 b5 d4 c5 h4 g5 f6 c3 a5 c2 h5 g3+ Ke1 g4 Kd2 c4 d5 f2 a6 f3 Ke3 c3 Kd4 b3 Ke5 b2 h6 g2 d6 g3 a7 Ne7 h7 Qc7 Be3 c1R Na3 b1N Nc4 c2 Ne2 g1B Nf4 g2 Nb6 Na6 Rh4 Nd2 Nc8 Rb8 a8B Nb3 Ne6 Na1 Bh6 Qc5+ Qd5 Rg8 h8B Rg7 d7 Kg8 f7+ Kh7 Kf6 Re1 e5 c1R Qb3 Rc2 Nf4 Rd1 e6 Rd6 Ng6 Rc6 Bd3 f1R Bf5 f2 Bh3 Re1 Qd3 f1Q+ Qf5 Qe2 Qf1 Nd5+ Kf5 Qd2 e7 Qdf2+ Rf4 Rb1 e8Q Rf6+ Ke5 Be7 f8B Bd8 Re4 Bb6 Qe6 Ba7 Bd6 Ne7+ Qd5 Rd1 Rh4 Bh2+ Ke4 g1N Qdc4 Nf3 Qb3 Rg8 B8g7 Ne1 Bh8 Bg1 B8g7 Rf5 Bc3 Rg7 Nf8+ Kh8 Bb7 Nd5 Ba8 Rf6 Ke5 Ne7+ Ke4 Ng2 Qd3 Bh2 Qe2 Rh1 Qd1 Nd5 Qf1 Bg1 Ke5 Ne1 Rh5 Rf4 Ke6 Ne7 Rh4 Rf6+
bRb5/1N2nrr1/2N5/3b1QB1/KR1R1RQ1/1Rq3n1/P1qpr2r/2nk3n w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 h4 Ke7 e4 Kf6 c4 f1B Kc2 g5 Kb3 d5 c5 b5 e5+ Kf5 h5 Ke4 f5 f2 h6 d3 h7 d2 f6 Ke3 f7 d4 f8Q d3 c6 g3 e6 g2 c7 g4 e7 g3 e8R+ Ne7 Nh3 g1N Na3 g2 Nb1 Na6 Qf5 Ne2 Rf8 g1R Rf6 Nc5+ Kb2 b3 Rh2 b4 Re6+ Ne4 Rf6 Rg7 Rg2 Qd4+ Nc3 N4g3 Rg1 Bg2 Rf8 f1R Ng5 Bd5 Ne6 Re1 Nc5 Ra7 Nb7 Qe5 Kb1 b2 Nb5 Qc3 Nd4 Rf7 Rh1 Rg7 Rh3 Rf7 Nf3 Kf2 Qa4 d1N Bg5 Nc1 Ne5+ Ke2 Nc6 d2 Rh4 Rg7 Rd4 Nf2 Rf7 Nfh1 Rf6 Qe3 Kc2 b1B+ Kb2 b3 Ka3 Bc2 Rb1 Qc3 Rb4 b2+ Rb3 Bd7 c8R Kd1 Rb8 Bce4 Rff8 Bc8 Rd8 Rf8 h8R Rff7 Rh4 Re2 Rf4 Rh7 Rd6 Rhh2 Rd8 Bde6 Rd4 B6d5 Qg4 Rg7 Qa5 Bg2 Ka4 Bgf3 Ra1 b1Q Rbb4 Qbb2 Rb1 Qbc2+ R1b3 Nef5 Nd6 Raf7 Qb5 Ne7 Qd3 Bb7 Qdf5 Ba8 Nb7 Be6 Kb5 Bfd5 Ka4 Bc8
brRrBN1k/1P2pb2/4nq2/2q3Q1/r1br2Nq/6K1/B1nB1Q1B/4q2B w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 Bd2 e5 Bc1 e4 g4 Nh6 h4 Na6 b4 Qa5 f5 Nf7 Ra3 Nh6 Rf3 Ng8 Rf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Bb5 Qc7 Bf1 Qd8 Kf2 Kf8 c4 Kg7 b5 h5 c5 d5 c6 a5 c7 e3+ Kg2 f3+ Kh3 a3 b6 a4 Nc3 h4 Na2 f2 Qf3 e2 Qe4 e1Q Bb5 f1B+ Qg2 d3 Bb2+ d4 Nc3 d2 Be8 d1B Nf3 d3 Nd2 a2 Ne2+ Qd4 Nc4 a1R Ne3 d2 Rh2 a3 Nf4 a2 Ng4 Bc4 Qf2 Bb7 c8B Nh6 f6+ Kg8 g7 Nc6 Ba3 Nb4 Ne6 Nf5 Nf8 Nc2 Bd6 Qc5 Be5 Bbd5 Bb7 Bf7 Bh1 Rb8 Rg2 Bf3 Bh2 Ba8 b7 d1R Rg3 Rd2 Rc3 Nfd4 Kg2 h3+ Kg3 Be2 Rc4 Ne6 Rc3 Qf5 Rc8 Qc5 Nd7 Bg6 f7+ Kh7 f8B Rd4 Kh4 Bf7 Kg3 Bc4 g8B+ Kg6 Bg1 h2 Bg7 Rd6 Bc3 Rd4 Nf8+ Kg7 g6 Qe3+ Bf3 h1Q Bd2 Qe1 Bg2 Qh7 Bh1 Qh4+ Kg2 Rb1 Bh2 Rb4 Kf3 Qf6+ Kg3 Ra4 Bg5 Qeb4 Bd2 a1Q Ne3 Kh6 g7 Qe1 Ng4+ Kh5 Bh7 Ba6 g8Q Rd7 Ng6 Na3 Ne3 Rd3 Bb5 Kh6 Bd7 Qe4 Bc6 Bc4 Bd7 Rd4 Bb5 Qed5 Bd7 Qdg5+ Ng4+ Kh5 Qg7 Rd8 Nf8 Qgh6 Bb1 Nc2 Qg8 Qh7 Be8 Qhe4 Ne3 Kh6 Ba2 Qh7 Qg4 Qhh8 Qh5+ Kg7 Ng4 Qh7 Qh6+ Kh8 Qg5 Qh4+
2Bn2B1/2r1Qn2/4r1PB/r2Bkn2/1pb2R1N/3n2br/2rK4/q1r1B1QN w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Ra2 exf4 Ra3 bxa3 g4 Kd7 e4 Kd6 d4 h5 a5 c5 a6 b5 a7 f5 g5 b4 g6 a2 Bc4 a1R Ba2 c4 Ke2 h3 Qe1 f3+ Ke3 f2 Nc3 f1R Nge2 f4+ Kd2 f3 Ke3 h2 Kd2 h4 Nb1 c3+ Kd1 c2+ Kd2 h3 Kd3 f2 Nd2 Rh7 Nf3 Nh6 Kd2 Ba6 Nh4 Nc6 Ng3 Rc8 a8B Qa5 Rg1 Rg7 Nh1 Nd8 Rg4 Bc4 Rf4 Rgc7 Qd1 Nhf7 e5+ Ke7 e6 Kd6 e7 Re1 e8B f1R Bd7 Re6 Qg4 Bg7 Bb7 Be5 Qg1 Rf3 Ba8 Rc3 Bac6 Ra8 Bc8 Rb1 Rf1 Bg3 Rf4 Ra6 Bb3 Qa1 Ba8 Ra5 Bab7 Ke7 d6+ Kf8 d7 Ke7 d5 Kd6 Ba2 Ke5 d6 Rbb3 Bd5 Rb1 Bb2 c1N Ba3 Nd3 Bc1 Nc6 d8B Rbb3 Be7 Ncd8 d7 Rb1 Nf2 h1R Bf8 h2 Bh6 Nc6 d8Q Rbb3 Qe7 Ncd8 Qf1 Rg1 Qg2 h1N Bb2 Rc1 Qg1 Rba3 Bb3 Bh2 Ba2 Ng3 Nh1 Nf5 Bb3 Nc5 Rd4 Rh3 Bc3 Bg3 Ba2 Nd3 Rf4+ Nd4 Ke3 Rb3 Be1 Nf5+ Kd2 Rbc3 Qg5 Rf6 Bde6 Nd6 Bf7 Bb5 Bg8 Re6 Bd5 N6f7 Qe7 Ba6 Bf3 Bc4 Bd5 R3c2#
1q3Q2/kq2N3/1q1b2N1/2N1BBn1/1r2q1Nq/1p2R2n/r4P1K/2nQn1Nn w - - 0 1 legal: proof: b4 a5 g4 axb4 a4 c5 d4 cxd4 g5 f5 g6 b6 Ra3 Bb7 Re3 Bf3 Re4 hxg6 exf3 fxe4 f4 g5 f5 g4 h4 g5 c4 e5 h5 d5 c5 Kd7 c6+ Kc7 h6 b3 a5 b2 a6 b5 f6 Kb6 f7 e3 a7 e4 c7 b4 c8Q g3 h7 e2 Be3 g4 Qf5 g2 Qg6+ Nc6 Qf6 g3 Nc3 b1Q Rh2 Bd6 f8N Nge7 Bh6 d3 Qh4 d4 Be3 Nf5 Bd2 Na5 Qf4 Qh4 Qh6 Nb3 Qf6 Nc1 Nh3 g1N Qe6 g2 Nb5 Ng3 Qg8 Nh1 Ng6 b3 Ng5 Nh3 Nc3 g1Q Ne5 Qg2 Bf4 Qf3 Qg7 Rhb8 h8N Ka6 Bg2 Rb4 Qf8 Qfg3 Ne6 Qg7 Nf3 Qb7 Nd5 Qb6 Ne7 Kb7 Kd2 e1N Ng1 Ka6 Be5 Qb8 Qe2 e3+ Kd1 Qb6 Be4 Nf3 Bf5 Nfg5 Ke1 Qc2 Qf1 e2 Nhg6 Qc8 Rg2 Qcb8 Rg3 Q6b7 Re3 Qb6 Kd2 e1N Qe2 Q6b7 Nc5+ Kb6 Kd1 d2 Qg4 Na2 Ke2 d1Q+ Kf1 d3 Qh5 d2 Qf3 Qb1 Qd1 Nef3 Kg2 Ne1+ Kh2 Nc1 Ne4 Ka6 Nf6 Q1e4 Ng4 Qb6 Qc2 d1Q Qd2 Qe8 Qd4 Qdf3 Qd1 Rb8 a8N Ka7 Nc7 Ra8 Ne6 Qeb8 Nc5 Qeb7 Na4 Qfe4 Nc5 Qd7 Ne6 Kb7 Rg3 Ra2 Nc5+ Ka7 Re3 Qdb7
1RBN3k/b2p4/K2Qb2q/nNqq1Nb1/3Pb3/5Nb1/2n4Q/NnnRr3 w - - 0 1 legal: proof: f4 a5 b4 axb4 g4 e5 c3 bxc3 Qc2 exf4 Qd1 f3 Qa4 b5 Ba3 f5 Be7 f4 Bg5 h6 Qc2 hxg5 Qd1 Ra6 Qc2 Rf6 Qd1 Rf5 gxf5 Ba3 Qb3 Bd6 Qd1 Bf8 a4 Kf7 e4 c5 h4 f2+ Ke2 g4 Kd3 g5 h5 Kg7 a5 b4 Kc4 g3 Kb5 c2 a6 c1N e5 f3 e6 b3 d3 b2 a7 g2 a8Q c4 e7 c3 Qe4 g4 Ne2 g1Q Nd2 b1N Qc2 g3 Qb2 g2 Qc6 Nf6 Qd6 c2 Nb3 Bb7 Nc3 Ng4 Ra8 Ne3 Na1 Nc6 Rb8 Na5 e8N+ Kg8 f6 Be4 Be2 f1Q h6 f2 Ng7 Qd1 Ka6 f1B f7+ Kh7 Qa2 Qh4 Nf5 Bg7 Qb2 Be5 Nb5 Re8 f8N+ Kh8 h7 Qh6 Ne6 Qd2 Ned4 Bg3 Qa2 Qf2 Nf3 g1B Ka7 Bh3 Ka6 Nec4 Bf1 Qc5 Be2 B1f2 Rd1 Nca3 Bf1 Qdg5 Bg2 Qd5 Bh1 Ba7 d4 Ncb3 Qb2 c1B Qh2 Qe7 Bg2 Bg5 Bf1 Qee5 Bc4 Qc5 Bd5 Nc2 Bb7 Nc1 Bc8 Qcd5 N5h4 Kg7 h8N Be6 Nf7 Qc5 Nd8 Qed5 Qd2 Kh8 Qe2 Rf8 Qh2 Rf4 Nf5 Rh4 Qe2 Rh1 Qh2 Re1
rQ2R1b1/1R1nRbbr/2b3kp/8/n3pn2/r3q1P1/2BRB2Q/1NRbK3 w - - 0 1 legal: proof: h4 f5 a4 e5 e4 g5 d4 exd4 e5 b5 axb5 gxh4 Ra6 c5 Ke2 c4 Nd2 c3 Ne4 fxe4 Bd2 cxd2 Ra4 Bc5 Ra1 Bf8 b4 Kf7 f4 d5 c4 a5 f5 a4 c5 h3 c6 a3 b6 h2 b7 h6 g3 a2 b5 Ne7 f6 Ng6 b6 Nd7 b8Q Bb7 c7 Bc6 c8B Rh7 b7 Qb6 Rc1 a1R Qc2 d1N Ke1 d3 Ne2 d4 Nc3 R1a3 Nb1 Nf4 e6+ Kg6 e7 Nc3 e8R Na4 f7 Bg7 f8R Qb3 Rg1 h1B Be2 Bf3 Re7 Bh5 Rfe8 Qb6 Rg2 d2+ Kf1 d1B Ke1 d3 Rh2 Ndc5 Be6 Nd7 Bb3 Qe3 Qd2 Kf5 Bc2 Bf7 Qa5+ Kf6 Qh5 Bg8 Qh3 Kg6 Rg2 Bf7 Qh2 Bg8 Qd8 Bf7 b8R Bg8 Rb7 d2+ Kf1 Bf7 Qb8 Bg8 Bcd3 Bdb3 Bc2 d1B Ke1 Qb6 Bf1 Qc5 Rd2 Bbf7 Be2 Qe3
1nbN3N/R3p1p1/Q7/1rbP2B1/2NBr2r/N2kb1bN/KQ1n1b2/2qn4 w - - 0 1 illegal: No proof kernel forced: wxDB
b3q3/1n1bB1q1/2Q2R1q/3P1Bb1/q3rBRn/B3pN1q/kBpKQ3/4r3 w - - 0 1 illegal: No possible last move, all moves rejected
2b2Rn1/1NB3r1/nPK2r1R/1n5R/2kbqQ2/1q3Q2/nR1p2Bp/1R2b2n w - - 0 1 illegal: No possible last move
2QR2Br/1rb3BK/1Rqb1b1R/7N/1RQ1p1qq/kPq1r3/np6/3n1R2 w - - 0 1 illegal: No possible last move
BbK2N1q/R1Q1b2b/n5b1/N1p1q1r1/3N1N1N/qp3Rr1/2Q2P1n/5r1k w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Bb2 fxe4 Ba3 bxa3 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 Kg5 g4 c5 d4 h5 d6 e3 a5 b4 a6 e2 a7 e1R+ Kd5 Kf4 g5 e5 d7 a2 Ke6 e4 g6 e3 g7 h3 d5 h4 d6 e2 Qc2 b3 Nc3 h2 Na4 h3 Qh7 Qa5 Bg2 Nh6 g8Q Be7 Nb6 Ng4 Qd8 Rf1 Nf3 Rg8 Nc4 e1B Qb6 Bc3 Qc2 Be5 Qc6 Bb7 d8N Rg7 Qc8 Be4 d7 Qa4 Rg1 h1B Nc6 h2 d8N Qb4 Qb7 Qe1 Ncd4 B5d6 Rb1 a1Q Rd1 Qb2 Ra1 Qe3 Ra6 Qa3 Na5 Bc7 N8c6 Bcd6 Nce5 Qe2 Nd7 Rg8 Rc6 Na6 Rc7 Rg7 Qb6 Rag8 a8N Qe3 Ra7 Bb8 Nf8 Bf5+ Kd5 Qe5+ Kc6 Bd3 Kb7 Ke4 Ng5+ Kf4 Bc6 Bhe4 Nc7 h1Q Rg3 Qh8 Ngf3 Nh2 Nh4 Bh7 Kc8 Rg6 Re3 Rg3 Ba8 R8g5 Nce6+ Kg4 Qb7 Kh3 Qc7 Bdf5 Rf3 Bfg6 Nhf5 Kg2 Nh4+ Kg1 Nf4 Kh1
bq3nrb/N3pN2/1n2q1P1/B7/N4R2/1rN2N1k/1R1pbQr1/2n1rQK1 w - - 0 1 illegal: No possible last move, all moves rejected
4rb1r/3k4/rRRrN3/1b3pqr/3R2B1/1QRKnPB1/1RQp1b2/2r3n1 w - - 0 1 legal: proof: d4 b5 b4 c5 h4 cxd4 a4 bxa4 h5 a3 h6 gxh6 Nc3 h5 Nd5 h4 Nxe7 Nxe7 b5 Ng8 Kd2 a5 g4 d5 e4 h5 c4 f5 c5 a4 e5 d3 c6 a2 c7 d4 f3 a3 g5 h3 b6 h2 g6 h4 e6 h3 b7 Bd7 c8Q Ne7 g7 Nd5 g8R Nc6 b8R Ne3 Rab1 a1B e7 a2 Ke1 d2+ Ke2 Bc3 Bg2 a1R Kd3 R1a6 Qb3 d1R+ Bd2 Ba5 Rb2 Bb6 Ne2 Bc5 Rg1 h1R Nf4 h2 Bh3 Rc1 R1g4 Rhd1 Ne6 h1R Rf4 Ba7 Bg4 R1h5 Rb6 Rb8 Ke2 Ra8 Rg6 d3+ Kf2 Rb8 Be1 Nd4 Qcc2 Ne2 Rd4 Bb5 Rc6 Ng1 Rc3 Kf7 e8R Qg5 Rec8 Ke7 R8c6 Re8 R6c4 Rd6 Rc6 Ra1 Rh6 Rdc1 Rf6 Ra6 Rg6 Nd1+ Kf1 Kd7 Bg3 Ne3+ Kf2 d2 Rh6 Ba4 Rf6 Nh3+ Ke2 Ng1+ Kd3 Bb5+ R6c4 Ra8 Nc7 Ng2 Rd5 Bf2 Rd4 Rd5 Rb6 Ne3 Ne6 Rd8 Be5 Rd6 Bg3 Ba4 Rc8 Re8 R8c6 Bb5+
2r1BnnN/2Q2BQ1/3r2p1/1KNnB3/2nr2b1/q1B1R2B/1P2n2p/1bk2r2 w - - 0 1 legal: proof: h4 f5 a4 b5 d4 bxa4 g4 c5 h5 cxd4 h6 e5 Ra2 e4 Ra3 fxg4 Re3 g6 Rd3 Bg7 hxg7 exd3 Kd2 Ke7 c4 Kd6 f4 Kc5 e4 Kb4 f5 a5 e5 d5 e6 h5 f6 g3 e7 h4 e8B h3 c5 h2 f7 a3 f8B g2 c6+ Qd6 c7 a4 Bd7 a2 Bf5 a1N Bh3 a3 Bd7 a2 Ba4 Nb3+ Ke1 a1R Bd7 d2+ Ke2 d3+ Ke3 d4+ Ke4 R8a6 Qh5 d1N Bf4 d2 Kd3 Na5 Nf3 Kb3 Ne5 g1N Nf7 Nc3 Qe5 d1B Bfh3 Nge2 Be8 Nd7 Re1 Qa3 Bb4 Nd5 Nc3 Rd6 Ne4 Nc4 Bc3 Nf8 Nc5+ Ka2 Bg3 Bg4 c8Q Kb1 Qc7 Kc1 Qf6 Rb1 Be5 Ra1 Rg1 Rb1 Rg3 Bb3 Re3 Ba2 Ke4 d3 Qfe7 d2 Kd3 Rh5 Nh8 Rf5 Qf7 Rf1 Qf6 Nge7 g8B d1R+ Ke4 Rd2 Bgf7 Ng8 Qg7 Rc2 Kd3 Ra1 Qa5 Bb1 Qd8 Qb3 Qa5 Ra4 Qc7 Qa3 Ne6 Ng1 Kd4 Rb4 Kc5 Ra4+ Kb5 Ne2 Rf3 Rd2 Nc5 Ra8 Rd3 Rc8 Re3 Rd4
1K1R4/6PR/1R1rb3/2Q2B1b/nr1R3b/p1Q1rkNB/1pb4r/1nqR1r2 w - - 0 1 legal: proof: b4 a5 h4 d5 f4 g5 a4 gxh4 c4 e5 cxd5 exf4 Ba3 b6 b5 Nd7 Bb4 Nb8 Na3 Nc6 Nc4 axb4 a5 Nb8 a6 Qe7 Na5 bxa5 Rb1 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 d4 c5 b6 f5 g3 h5 a7 c4 d6 h3 b7 h2 d5 f4 d7 a4 d6 b3 Kd5 c3 e5 h4 e6 c2 e7 c1R e8R h3 Ne2 b2 Qd3 a3 Bg2 f2 Qg6+ Qg5+ Ke6 f1R Nc3 f3 Re7 f2 Qf7 Rfe1+ Ne2 f1R Qf2 Rcd1 Rh7 Qc1 Qc5 Na6 b8R Be7 Rb6 Rb8 a8B Nf6 Bae4 Nd5 Bd3 Bh4 Bf5+ Kg5 g4 Nc3 Ke7 Nb1 d8Q Be6 d7 Rd6 Ng3 Kf4+ g5 Re3 Qdc7 Rb7 Rg1 h1B d8R h2 Bgh3 Be4 Qc3 Rb8 Q7c5 h1B Rg2 Bd3 Rd2 Bc2 Rd4+ Bhe4 Nh5+ Kf3 Ng3 Bg8 Ke8 Bd1 g6 Bec2+ Qe5 Be2 g7 Nc5 Qe7 Na4 Qe5 Rf6 Kd7 Rd6+ Kc7 Be6 Qec5 Bed1 Rc6 Rb4 Rb6 Kf2 Kb7 Bh5 Kb8 Kf3 Qd2 Bg6 Rc8 Qe1 Rh5 Be7 Qdc3 Nd2 Rd8 Rh6 Rc1 Nb1 Rhh4 Qd2 Rd1 Qc1 Bg2+ Kf2 Rhg4 Rh2 Bh3 Kf3 Rh4 Be8 Rh8 Bh5 Rh7 Bh4
1q1R2nK/B5p1/4Qn2/1Q1p3R/Rn2br1P/r1Rr4/1N2N3/knrbR2r w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 Kd3 Ke7 Ke4 Ke6 a4 f1N c4 b5 a5 d6 a6 b3 a7 b4 c5 f2 c6 b2 c7 b3 Qd3 g3 Qb5 d3 Na3 b1N Be3 g2 Nc4 d2 Nb2 d1R f5+ Kf6 Kf4 d5 h4 Ng3 Ra4 f1R+ Kg4 Ba6 c8R Ke5 f6 Nh5 Kg5 Nc6 Kg6 Rd3 f7 Rc1 f8R Nb4 Rc3 Qb8 Rd8 Nhf6 Bc5 Rh5 e4 Rf5 Ne2 Rf4 Re1 g1R+ Kf7 Rh1 Kg6 Ne8 Kh7 Nef6+ Kh8 Bc8 Be3 Bg4 Bd4+ Ke6 e5 Bf3 Ng3 Bd1 Ne2 Kf5 e6 Ke4 Bb6 Ke5 e7 Ke4 Rc5 Ke3 e8Q+ Kd2 Nc3 Kc2 Qe6 Na3 Ne2+ Kb1 Rc3 Ka1 Nc4 b2 Bc5 b1B Nb2 Rg3 Bd4 Be4 Bf2 Rd3 Be3 Qc7 Bf2 Rc8 a8R Qb8 Bb6 Rc6 Ba7 Ra6 Rf8 Nh7 Rf5 Nhf6 Rh5 Na2 Rac4 Nb1 Rb4 Ra3 Ra4 Qe8 Rd8 Nb4 Qg4 Qe5 Qe6 Qb8
3R1b2/1Q2q3/2q1N2b/KBN1qPQ1/2N1b1qq/n1pn1p2/r1N2R1n/1k5N w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Nd4 b5 Nf3 h6 Ng1 f3 Bb2 f4 Bf6 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 a4 Ke7 e4 Kd6 h4 Ke5 h5 Kd4 e5 c5 e6 g4 d3 g5 Kd2 c3+ Kc2 g3 Kb3 g2 e7 g4 e8Q f2 h6 c4+ Ka2 c2 h7 c1Q a5 g3 a6 f3 a7 Qh4 a8N Na6 Qde2 Bb7 Q8e6 Nh6 Qc6 Ng4 Qh6 Be4 Rh2 Nc5 Nh3 g1Q Nb6 g2 Na3 Kc3 d4 Nd3 d5 Qf4 d6 Qe5 Nc2 b3+ Ka3 b2 Re1 b1Q Rd1 b4+ Ka4 Kb2 d7 c3 d8N b3 Ne6 Ka2 Qhe3 b2 Nc5 Rg8 Rd2 Qe1 h8N b1N Nf7 Na3 Nc4 Kb1 Nd8 Rg6 Qg5 Ra6+ Na5 Bh6 Nde6 Ra7 Qee3 Ra6 Be2 f1Q Nf2 Bf8 Nh1 Bh6 Rh3 Nh2 Qd4 Qff2 Qd5 Qg4 Bf1 Qfh4 Rf2 Qe3 Be2 Qgc1 Bf1 g1B Qb7+ Qb2 Rg3 Qb6 Rgg2 Qe1 Rd2 Be3 Rgf2 Bf8 Be2 Nb4 Rd6 Qc6+ Bb5 Nd3 Rd8 Ra7 Qa6 Bf4 Nc4 Qe2 Ka5 Qe3 Qg7 Bh6 Qg8 Qeg5 Qg6 Qe7 Qg5 Rd7 Qb7 Rd4 Nb6 Rb4 Nc4 Rb2 Qb8 Ra2 Qa7 Qd4 Qb7 Qe5
4R1R1/1b3Q1N/RQp2bn1/PRp1qB2/2Rb2b1/q3NnK1/q7/1r1nk2b w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 a5 c4 axb4 c5 d6 Bb2 dxc5 Ba3 Be6 Bc1 Bc8 Nf3 b5 Nh4 f5 Nf3 h6 Ng1 f3 Bb2 f4 Bf6 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 Kd7 h4 Kc6 e4 g4 a4 g5 d4 b3 e5 Kd5 h5 Ke4 e6 b2 f6 g3+ Ke1 Ke3 e7 b4 e8R+ Be7 a5 g2 d5 b3 d6 g4 d7 g3 h6 c6 f7 Qc7 d8Q Nd7 f8R Qe5 h7 Bb7 Bc4 Bf6 Qc7 Ne7 Rh5 Ng6 Qd5 f2+ Kd1 f1N Ke1 f3 Be2 f2+ Kd1 Rg8 Nc3 b1B h8R b2 Rh3 Be4 Nf3 g1Q Qb3 g2 Rc1 b1Q Qcb6 Qa2 Ng5+ Bf3 R3h4 Bg4 Nh7 Qh2 Qc4 g1B Qf7 Qg3 Rb1 Qh3 Bf3 Kd3 Rb5 Ne3+ Kc1 f1B Nd5 Rg7 Rfg8 Nd1 Ne3 Bg2 Be4+ Ke2 Bf5 Ke1 Ra8 Bh1 Ra6 Be2 Rc4 Bg4 Nd5 Bd4 Ne3 Qd6 Re8 Nde5 Rhf8 Nf3 Rg8 Nb2 Kc2 Nd1+ Kd3 Qdh2 Ke4 Qhb2 Nf8 Qh8 Nh7 Qba3 Qe6 Rc7 Qf7 Rc8 Qd5 Rb8 Qf7 Ne7 Kf4 Ng6+ Kg3 Qg7 Qfc7 Qe7 Qf4 Qe5 Be6 Ba1 Rbb4 Bc8 Qc7 Bh8 Rb3 Rb4 Qb6 Bd4 Bd7 Bb7 Bc8 Qd5 Qf7 Bhf6 Bf5 Qe6 Rd3 Rb1 Rb3 Qd5 Rb5 Qe5+
2BRBb2/Kbb1p2b/1bP4k/7q/1Qr1p2B/3B1b1r/B2NNb1n/6qQ w - - 0 1 illegal: No possible last move, all moves rejected
4qR2/k1BN1b2/1Rr5/1qP4p/K1bb1pQN/Nnr1Q3/r7/1rNrbN2 w - - 0 1 illegal: No possible last move
1Q1n1nqR/3Q1PB1/1qn5/r2q4/Bk1p1b1p/N4R2/Q1n4K/nr2q1QQ w - - 0 1 legal: proof: f4 g5 g4 f5 d4 c5 e4 cxd4 Nc3 b6 Nce2 fxe4 f5 Ba6 Nf4 gxf4 b4 Be2 g5 a5 h3 Bg4 hxg4 axb4 Kf2 e5 Kg2 Ke7 c4 Kd6 a4 Kc5 f6 h5 f7 d5 g6 e3 g7 e4 a5 b3 g5 f3+ Kh2 d3 a6 h4 a7 d2 g6 b2 Ra5+ b5 Bg2 b1N Ne2 f2 Qc2 d1Q Ng3 f1N+ Kg1 e2 Bh6 e1Q Bf3 e3 Ra3 e2 Ne4+ Kb4 c5 Nfd2+ Kg2 Nb3 c6 N1d2 c7 Na1 c8Q Nc4 Qc7 Ne7 g8Q Nbc6 g7 N4e5 Nc3 N7g6 Rf1 Bd6 Rf2 Nf8 Kh2 d4 Qb2+ Qb3 Qa2 Qd5 Qd7 Qb6 Nb1 Nd8 Bh5 Nec6+ Rf4 Rb8 a8Q Rb7 Bg4 Ra7 Rc3 Ra5 Na3 Bb8 Rg3 Bc7 Rff3 Bf4 Bf5 Qb8 Bc2 Qb6 Qb8 Qg1+ Kh3 e1N Ba4 Nec2 Qh7 Qe1 g8Q Qe8 Qgg4 Rg8 Qe4 Rg6 Rf2 Re6 Qh1 Re1 Rg1 Rb1 Qd1 Qe1 Rg8 Qg1 Rh8 Qg8 Nc4 Kc3 Qc1 b4 Bg7 b3 Na3 b2 Rf3+ Kb4 Qe3 Rg1 Qf2 b1Q Qe3 Rd1 Qeg1 Qc1 Kg2 Qd2+ Kh3 Qe1 Kg2 Rb1 Kh3 Bc1 Kh2 Bf4+
1K4R1/4RR2/1pk1PqB1/1q2n1Rr/4rb1N/r1q1n1R1/Qp2Q1r1/3nN1n1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h6 Qd3 b6 Be3 Bb7 Nb1 Be4 Bg5 f4 Qd1 Bf5 gxf5 hxg5 Kd2 d5 Kd3 Kd7 a4 g4 h4 g5 c4 b3 e4 f2 e5 f3 e6+ Kc7 f6 g3 a5 g4 h5 b2 c5 g2 f7 g3 a6 Bh6 f8R Nf6 c6 Ne4 a7 Qc8 Rh3 Nd7 Rf7 Nd6 Ra5 Nf5 Na3 Bg5 Be2 f1Q Nc2 f2 Nf3 g1R Nh4 g2 Ne1 Kd6 c7 Rh7 Rf8 Ne3 h6 Rh8 h7 Bh6 Kd2 d3 Kc3 Bg5 Qc2 d4+ Kb4 d2 Kb5 d3 Bh5 d1R Bg6 d2+ Qc4 Ra1 Rg3 d1N Rff3 Ra2 Rf6 Qd3 Rf7 Qe8 c8R f1Q Rc7 Qf6 Ka6 Qdc3 Kb7 Ra4 Qa6 Re4 Qe2 Bh6 Rh5 Ne5 Rce7 Qb5 Rf5 Rh1 Rh5 Rh2 Rf5 g1N Rh5 Rag8 a8Q Rg2 Qa2 Bf4 Rhg5 Kc5 Ka7 Ra8+ Kb7 Ra3 Kc7 Rg8 h8R Rg7 Rhe8 Rh7 Rg8 Rh5 Kb8 Kc6
2rq2N1/p2q3b/N2kB3/4r1QR/1qB5/bBrn1n1p/2Bp1Q1P/1b2B1K1 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 bxa4 f5 a3 b5 g6 Ra2 gxf5 Rb2 e5 Rb4 f4 Rxd4 exd4 Kf2 Ke7 g4 d5 c4 h5 e4 f5 c5 f3 b6 f4 b7 d3 e5 h4 g5 d2 c6 d4 c7 h3 e6 d3 g6 a2 g7 a1R Nc3 Bd7 c8B Nf6 g8B Kd6 e7 Nc6 e8B Nd4 Qe1 d1Q Nge2 Nh5 Bb3 Ra5 Na4 Bf5 Nc5 Bh7 Na6 Re5 Bce6 Rc8 Ng3 Rc3 Bd2 Qb1 Bc2 Qb4 Rg1 Qd7 Qc1 Qd8 Be1 d2 Bfc4 Qd7 Kf1 f2 B8f7 Nf3 Qa1 Be7 Qa5 Rc8 b8Q+ Qc7 Qa8 Qd7 Qe4 Bf8 Qe3 Be7 Ke2 f1B+ Kf2 Bfd3 Qd8 Bf8 Qg5 Be7 Bd1 Bb1 Bc2 Nf6 Nh5 Ne4+ Kf1 Nf2 Nf6 Nd3 Qf2 Kc6 Qe3 Qbd6 Rg4 Q7c7 B4b3 Qcd8 Nc7 Nd4 Rh4 Q6d7 Ng8 Ba3 Kg1 f3 Na6 Kd6 Bf5 f2+ Kh1 R8c5 Rh5 Rc8 Bfd5 Nf3 Bfe6 f1Q+ Qeg1 Qf2 Q1g3 Qe3 Qf2 Qeb6 Bdc4 Nh4 Kg1 Qbb5 Bf7 Qb4 Bfe6 Nf3+
8/2b1r1Q1/pK1R2rQ/4r1r1/3pPQRN/4bQ2/bkn1Q1pn/1B3Bqr w - - 0 1 legal: proof: g4 f5 a4 e5 d4 exd4 e4 d3 g5 c5 g6 b5 axb5 f4 Be3 fxe3 Nc3 d2+ Ke2 hxg6 Kd3 g5 Nce2 g4 Nd4 cxd4 Ke2 Bc5 Ra2 Bb4 Ra1 Bf8 Kd3 Kf7 Kc4 Kf6 h4 Ke5 b4 d5+ Kd3 g5 c4 a6 c5 g3 b6 g2 f3 g4 c6 g3 h5 e2 b5 e1R c7 Ra7 b7 Nh6 b6 Bd6 Qe2 Re8 Rd1 Qg5 Rh4 Be6 c8B Ng4 h6 Nh2 h7 Nc6 b8Q Rae7 Qb7 Bb8 Rg4 Rg8 Qa7 Rg6 b7 Bg8 Be6 Bf7 Nh3 g1B Nf4 Be3 Ng2 Bg8 Nh4 g2 Kc2 d3+ Kb3 Nd4+ Kb4 Nc2+ Ka5 Qf6 h8Q Qg7 Rb1 d1R Qh6 d2 Rb6 Kd4 f4 Kc3 f5 Qd4 Rd6 Kb2 f6 Rc1 f7 d1R f8Q Rd3 Qc5 Rc3 Qcc8 Rc5+ Kb6 Ra1 Qff4 Raa5 Qff3 Qd1 Qd7 d4 Ba2 Rce5 Bb1 Ba2 Qc8 Reg5 Qg8 Rae5 Qgg7 Qd2 Qc4 Qf2 Qce2 Qg1 Rc6 Bd6 b8Q Rc1 Qbf8 Bb8 Q8f4 Qh1 Rd6 Rd1 Qd3 Rc1 Be2 Qe1 Qd2 Qf2 Bd3 Rh1 Bf1 Qg1 Qde2 Bc7+
1N3b1N/1nk1rnnr/Q1N5/r5p1/3R2qP/pN5N/3r1B1p/Q1R1bKb1 w - - 0 1 illegal: No proof kernel
Kb3q1Q/R5Q1/n2bB3/1ppn1NQ1/k2N1q2/Pq1R3b/q1r1pQq1/4Q3 w - - 0 1 legal: proof: c4 a5 g4 b5 f4 f5 e4 fxe4 f5 h6 b4 axb4 g5 d5 Bb2 dxc4 Be5 Ra4 Bf4 Ra6 Be3 Rf6 gxf6 Bb7 Bf4 Bc8 Bg5 hxg5 Ke2 Kd7 Ke3 Kc6 h4 e5 d4 g4 f7 g5 h5 g3 f6 b3 d5+ Kb6 h6 Ka5 d6 c5 d7 g4 h7 b2 a3 g2 Rh2 c3 Rh5 c2 Qd2+ Ka4 Bd3 c1Q Nf3 g3 Nd4 Na6 Bc4 Bd6 f8Q Ne7 Qg7 Qf8 d8Q Bh3 f7 Qf1 Qf2 g1B Nd2 b1Q N2b3 g2 Be6 Qa2 Nf5 Bh2 Rd1 g1Q Rd3 Qgg2 Nbd4 Qd1 Qg5 Qdb3 Qe8 Rg8 h8Q Rg6 Rh7 Bb8 Nc2 Nd5+ Ke2 e3 Qg7 Qh8 f8Q e4 Qff6 Rh6 Qa1 Rh5 Qe1 Bhd6 Qef8 Qg8 Qh8 Rh6 Ra7 Rg6 Qfg7 Qf8 Kd1 e2+ Kd2 Nf6 Ke3 Rh6 Qef1 e1Q+ Q1e2 Qeb4 Ncd4 Ne8 Qee1 Nc7 Qe5 Rh7 Kf4 e3 Qgg7 Qg3+ Ke4 Nd5 Qef4 e2 Qfg5 Rh4+ Qff4 Qbd2 Nc6 Bg4 Qff2 Nb4 Qeg1 Rh1 Ncd4 Bh3 Qa1 Rc1 Qb1 Rc4 Qbe1 Nc2 Kd5 Qdf4 Kc6 Nb4+ Kb7 Rc2 Ka8 Nd5 Q7e7 Qh2 Qeg7 Qg2
Nq3Q2/1b2K1B1/Q1rP3r/QQ1R1B1Q/1q3N2/r4pq1/1p3np1/k1b1r1r1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Nh3 f4 Ng1 dxc6 Na3 c5 Nb1 c4 a4 Nc6 Ra3 h6 Re3+ Nce7 Re5 h5 Rg5 Nf5 gxf5 Nh6 Rg2 Ng8 Rg4 hxg4 Kf2 Kf7 d4 Kf6 e4 b5 h4 c5 a5 g5 h5 b3 d5 Ke5 h6 g3+ Ke1 b4 Kd2 Kd4 a6 g4 f6 b2 e5 b3 d6 g2 e6 f2 h7 g3 e7 f3 e8Q Bb7 f7 Qb8 a7 Nf6 Rh3 Ng4 Nc3 b1Q Bd3 f1Q Rh5 Nf2 Nh3 g1R Bb2 g2 Qde1 Bh6+ Nf4 Bg5 Bf5 Qe4 Na4+ c3+ Kc1 c4 f8Q Qe5 Qc6 Qc5 Qce8 Qb4 Qb5 Qe2 Nb6 Qe5 Ba3 c2 Kb2 c1R Qe2 Rg8 h8Q Rg6 Qa6 Qg7 Qee8 Rce1 Qeb5 Rh6 Qh7 Qc5 Bb4 c3+ Ka3 c2 Ka4 c1R Bc3+ Ke3 Ba1 Qg8 Bg7 Kd2 Ka5 b2 Qg6 Be7 Rg5 Rc2 Qh5 Kc1 Ka4 Kb1 Ka5 Ka1 Ka4 Qbc7 Qaa5 Rd8 a8Q Qb8 Q8a6 Rc3 Na8 Rc8 Bh7 Rc6 Rd5 Bg5 Bb1 Qca7 Bf5 Ra3+ Kb4 Rb6 Kc4 Rc6+ Qc5 Qb6 Kd4 Ref1 Ke5 Qb4 Qcb5 Rd1 Ng6 Bf4+ Kf6 Bc1 Ke7 Rdf1 Nf4 Rd1 Bc3 Qg3 Bg7 Rde1+
b3nRnq/q4pB1/1bb4r/1Q2nQ1q/1b1K2Q1/3PR1p1/N1p4k/QN1Q4 w - - 0 1 illegal: No possible last move, all moves rejected
b1nn1R2/4PnKp/R3q2N/ppk5/4rQ2/3q1Q2/1B1b1Rqn/R2R1bN1 w - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 b5 f4 bxa4 b5 e5 b6 exf4 e3 c6 d4 a5 c4 d6 c5 Ra7 Bb5 cxb5 d5 Rc7 Ne2 Na6 Ng1 Rc6 dxc6 Qc7 Qe2 Qd7 Qd1 Qd8 Kd2 Ke7 Kc3 f5 Kd4 a3 g4 d5 Ke5 d4 b7 f3 b8Q h3 e4 f2 g5 f1N g6 a2 c7 d3 g7 f4 c6 d2 Qc2 d1N Qc4 h2 Be3 f3 Qc2 f2 Qe2 Bb7 c8R Nc5 c7 Qd3 Nd2 Nc3 Nc4 Nh6 g8R Ne6 Qf3 Nd8 Rg6 Ba8 Nd6 Nd5 Bd4 Nb6 Bb2 Nhf7+ Kf5 Kd7 Kf6 Kc6 e5+ Kc5 e6 Bh6 Nf5 Bd2 Nh6 Re8 Kg7 Re7 Rd1 a1Q Rf6 Qa2 Rg6 Nb7 Rf8 Nbd8 Rg2 Qad5 c8R+ Qc6 Rc7 Nc8 Ra7 Qce4 Ra6 Qee3 Nh3 Qee4 Rhg1 h1Q Qbf4 Nh2 Rge1 f1B Rf2 Qed5 Ng1 Qd6 Ra1 Qb6 Red1 Qg2+ Q3g4 Rc7 e7 Qe6 Qgg3 Rd7 Qf3 Rd4 Qf4 Re4 Qf3 Qgh3 Qgf4 Qg2+
BKN4Q/2p2pbB/6n1/2rQ1q2/1pPr1n1B/4rR1N/k2nr2n/B2B1n2 w - - 0 1 legal: proof: a4 a5 f4 g5 Kf2 gxf4 e4 d5 g4 dxe4 b4 axb4 h3 Bf5 Ra3 Be6 Rf3 Bd7 g5 Bg4 hxg4 e3+ Ke2 Qd5 Rf2 Qd8 Kf3 exf2 Ke4 f3 Kf4 Qd7 Ke3 Qd8 Ke4 Kd7 Ke5 Kc6 c4 Kc5 a5 b5 a6 h5 g6 b3 d4+ Kb4 g7 b2 g5 h4 a7 h3 d5 h2 d6 Qd7 g6 Rh5+ Bg5 Nf6 g8Q Bg7 Bh3 f1N Qd3 f2 Qe4 Kb3 Qh8 b4 Nd2+ Ka2 Bg4 b1N Bd1 Qf5+ Kd4 e5+ Kc5 Nbd7+ Kc6 Nd5 Kb7 Rg8 a8B Rd8 Bf6 Nf8 d7 Nf4 Qd5 e4 Nh3 e3 Ba1 e2 Ne4 e1R Nd6 Re3 Nc8 Nbd2 Kb8 Rg5 Rg1 h1R Rg3 Nh2 Rf3 Rde8 d8B f1N Bdf6 R8e4 Be7 Rd4 Bd8 Rg2 Bg5 Rge2 Bh4 Be5 g7 N8g6 g8B Bg7 Bh7 Rg1 Qc5 Rg5 Qc6 Qg4 Qe6 Rc5 Qd5 Qf5
1b1B4/2N1Kb2/1r1q2Qr/r3n2P/4b2B/prRbBp2/k2pB1N1/B2q3Q w - - 0 1 illegal: No proof kernel
1rRBb3/3B1q1b/1KN3B1/2p4q/2bBR1p1/nnpQn1Q1/1b1P4/4B1nk w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 b5 Na3 h5 Ng1 f5 Nc2 f4 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Bd6 Ng4 hxg4 Qa4 Bc5 Qd1 Bf8 Kf2 Kf7 e4 Kf6 a4 Kg5 f6 Kh4 f7 g5 a5 c3 a6 b3 a7 b4 a8Q b2 e5 b1B e6 b3 e7 b2 e8B Nh6 Bfb5 Na6 Qd5 Ba3 f8B Nf5 Ne2 Kh3 Bc5 Bd7 Qd3 Ne3 Bg6 Be8 Re1 Qd5 Nd4 c6 Bb6 Nc5 Bd8 Nb3 Re2 Bc2 Qg1 b1N Ra2 Bb2 Ra8 Na3 Rc8 Nec4 Re4 Ne3 Bc4 Qb5 Be6 Qf5 Bd7 g3+ Ke1 f2+ Ke2 g4 Qe1 Kg2 h4 Qe5 h5 Rg8 h6 Qh5 h7 Kh2 h8B g2 Bhf6 f1B+ Kf2 g1N Bh4 Kh1 Bg3 Nf5 Qee3 f3 Qf4 Nh6 Ke3 f2 Qc7 Be2 Qb8 f1Q Be1 Qf7 Qg3 Rh8 Nf5 Na5 Kd4 Bf1 Kc5 Nb3+ Kb6 Rg8 Qd4 Bc4 Ne7 Nf5 Qdd3 Rf8 Bc7 Ne3 Be5 Nb1 Bd4 c5 Nc6 Ba1 Ba3 Bb2 Bb4 Na3 Ba5 Qh2 Bh7 Nb5 Kb7 Bb1 Rd8 Bc2 Re6 Qh6 Qf1 Qhh5 Re7 Bf5 Qd3 Na3 Re4 Bg6 Bc7 Rh8 Kb6 Rf8 Bf5 Bd7 Ra8 Rc8 Bd8 Be8 Bd7 Bf5 Ra7 Ra8 Rc7 Qf8 Rc8 Qg7 Bg8 Bh7 Bf7 Qg8 Bg6 Qe6 Qd6 Qf7 Qg3 Rb8+
1N1BK1BQ/qp2BR1n/1N4Qr/2B5/2pqq1p1/1bP4q/1B1n3n/2nk2b1 w - - 0 1 legal: proof: f4 f5 g4 a5 b4 axb4 e4 Ra5 e5 d6 Be2 dxe5 Bd3 exf4 Ba6 f3 Bf1 f4 a4 Rf5 gxf5 Bd7 Ra3 Be6 Rc3 Bc8 Rc6 h6 Rg6 h5 Rg4 hxg4 Kf2 g3+ Ke1 Kd7 d4 Kd6 Kd2 Kd5 Kd3 c5 h4 e5 c3 g5 a5 f2 f6 g4 f7 b3 h5 f3 a6 g2 h6 b2 h7 Nc6 a7 Qd7 a8Q Nf6 Nd2 b1N Bb2 Na5 Nc4 Nd2 Qb1 Nab3 Ne2 g1Q Ke3 e4 Kf4 e3 Kg5 Qa4 Kg6 Qa7 Rh3 Bg7 f8B Be6 Be7 Nc1 Bg2 f1N Qf8 Bc8 Kf7 Nh2 Qg6 Bf5 Qg8 Ke4 d5 Kd3 d6 Kc2 d7 f2 d8B f1Q Bd5 Kd1 Nd4 e2 Rf3 e1Q Nc6 Bc2 Nb6 c4 Nb8 Qh3 Qe8 Bb3 Rf4 Rg8 h8B Qe4 Bc5 Bh6 Bg7 Bg5 Bgf8 Rh8 Bfe7 Rh6 Qh8 Nh7 Ke8 Qgd4 Bg8 Bh4 Rf8 Bf2 Rf7 Bg1
2BBq3/1b3nbp/5n2/4b1N1/1BR1pBRr/p1r5/BQpnPK2/4Q1rk w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 g5 Qc2 gxf4 Qd1 f3 h4 Qd6 d3 f2+ Kd2 Qh2 Na3 Qxh4 Nc2 Qh2 Ne1 fxe1R Kc3 Be6 Kc2 Bc8 Kd2 Kd7 Ke3 Ke6 b4 Ke5 g4 c5 b6 f5 b5 a5 b7 a4 g5 f4+ Kf3 a3 b6 c3 g6 c4 g7 c2 Bb2+ c3 Rc1 Nd7 Ra1 c1B Nh3 Ra4 Ng5 Qh5+ Kg2 f3+ Kf2 Kf4 b8B+ e5 d4 c2 b7 Qe8 d5 Ndf6 d6 Nh6 g8B Nf7 d7 Bg7 Bc3 Bb2 Bh3 Rg1 d8B Re4 Bd6 Rd4 b8Q Bb7 Qf1 Rc4 Bc8 Ra4 Ke1 Kg3 Rh4 Rb4 Rc4 Kh2 Bd2 Kh1 Bf4 Ra4 Bb4 f2+ Kd2 Bd4 Qe1 f1N+ Kd3 Bc3 Rc1 Nd2 Ke3 e4 Ra1 Ra6 Kf2 Be5 Rb1 Re6 Rb3 Rd6 Rg3 Rd3 Rg4 Rh3 Qa7 Rh4 Qd4 Nh6 Bge6 Rf8 Qb2 Rf7 Rd4 Rc7 Ba2 Rc3 Rc4 Nf7
N3n3/Q1pkn2b/Bb3p2/B1q4B/r2p1r1n/1rpq3R/1Q5P/K2BR1B1 w - - 0 1 legal: proof: g4 d5 d4 b5 c4 dxc4 a4 g5 axb5 e5 f4 exd4 Nd2 gxf4 Ndf3 h6 g5 h5 Ne5 Qf6 Ng4 hxg4 Ra4 Qe7 Ra1 Qd8 Kd2 a5 Kc2 g3 Kb1 a4 b4 f6 e4 f3 g6 g2 b6 f2 g7 a3 e5 Bc5 e6 Qd7 b5 Bb4 b7 Kd8 b6 Qf7 e7+ Kd7 Qc2 Rh5 Be3 Na6 b8Q Qf8 b7 Rf5 Qa7 Ba5 b8B Bb6 Ne2 g1N Qb2 Nf3 Nc3 Rf4 Na4 Nc5 Bd3 Ba6 Re1 f1Q Bg1 Ne6 Bc2 Bc8 Bd1 Nh4 Ka2 Qd3 e8B+ Ke7 Beh5 c3 Re3 Kd7 Rh3 Ne7 g8B Ng7 Bc4 Ne8 Ba6 Bb7 Rc1 Be4 Ka1 Bg6 Rc2 Bh7 Re2 Qd2 Re1 Qd3 Qb7 Ra7 Qa8 Rb7 Ba7 Ba5 Bc5 Rb3 Qa7 Bb6 Bd6 Nc6 Bb4 Qc5 Ba5 Ne7 Qf2 Qd6 Qe2 Qc5 Qb2 Qe3 Qb7 Qd3 Ka2 Ba7 Nb6+ Kd8 Na8 Bb6 Qa7 Kd7 Re4 Qf1 Kb1 a2+ Kc1 a1R+ Kc2 Nhg6 Re1 Ra4 Kb1 Nh4+ Bg6 Rc4 Ka1 Qd3 Bgh5 Ra4+
r1N2q1Q/Bk2B3/2rq2PN/1p6/1N3bpp/1N1qpbqn/N7/1n3RQK w - - 0 1 legal: proof: e4 h5 h4 a5 b4 axb4 c4 d5 cxd5 f5 a4 fxe4 g4 Rh6 Be2 Rh8 g5 g6 Bg4 hxg4 h5 Na6 Ra3 Nc5 h6 Nd7 Rah3 Nb8 Rh5 gxh5 Kf1 Kd7 Kg2 b5 d4 c5 f4 Kc7 a5 e5 d6+ Kb7 d7 e3 f5 c4 d5 h4 h7 e4 f6 b3 d6 c3 g6 c2 f7 b2 Nd2 b1Q Ne2 Nf6 Nc3 e2 Nb3 e1Q Be3 c1Q Ba7 e3 Rf1 Bh6 f8B Na6 Kh1 Ne4 Be7 Qf8 Na2 Qd3 d8Q Nac5 d7 Rg8 h8N Ne6 Nf7 Bf4 Nh6 Nc3 Qe8 Qcd2 d8N+ Kc7 a6 Qg3 Qc1 Ng5 Nc6 Nh3 Ncb4 Bd7 Qe1 Nb1 Qf2 Qd6 Qg2 Q2d3 Qg1 Qff6 Qf8 Be6 Qg7 Rgc8 Qh8 Bf5 Bd4 Qf7 a7 Kb7 Bb6 Qf8 Bc5 Rab8 a8N Rc6 Nb6 Ra8 Nc8 Be6 Na1 Bb3 Ba7 Bd1 Nb3 Bf3+
3kqn2/2r5/3N3p/Q2pQQ1n/QR1qppR1/r2n1Pn1/B3QK1b/3N3q w - - 0 1 illegal: No possible last move
2N1n3/KBp1qRR1/2Q2B1q/P4BB1/Brb2p2/1qp4b/qb2k1pn/2Q5 w - - 0 1 legal: proof: f4 a5 c4 e5 d4 h5 e4 b5 g4 hxg4 f5 Ra6 b4 axb4 Na3 Rb6 Nc2 Rf6 d5 Re6 Nd4 exd4 e5 d6 c5 dxc5 fxe6 c4 Kd2 Ke7 a4 g5 h4 f5 h5 c3+ Kd3 f4 a5 g3 h6 g4 h7 g2 Rh3 g3 Rh6 b3 Nf3 g1Q Bh3 b2 Be3 b4 Kc4 b1B Kb5 b3 Qc1 d3 Nd4 b2 Rf6 d2 Bf5 d1Q Ra2 Qh2 d6+ Ke8 d7+ Ke7 Bf2 Nh6 Be1 Rg8 h8Q Ng4 Qh6 g2 Bh4 Qh3 Bg5 Nh2 Ra4 Qd2 Rc4 Qe8 Rc6 Ba2 Qg6 Qh6 Rc5 Qf7 d8B+ Ke8 e7 Nd7 Kc6 b1Q Nb5 Bc4 Na7 Qda2 Rb5 Qbb3 Rb8 B8a6 Nc8 Be6 Rb6 Bac4 Kb7 Rh8 Ka7 Rg8 Be4 Bh3 Bb7 Rh8 Rf5 Nf6 Rb5 Kd7 e8B+ Ke6 Rb6+ Bd6 Ba4 Rf8 Rc6 Kd5 e6+ Kd4 e7 Kd3 e8B Ba3 Bd7 Ne8 Bdf6 Bb2 Re6 Bb5 Re7 Bc4 Be6 Qfh7 Rf7 Ke2 Rg7 Nd6 Qe8 Rh8 Qc6 Ne8 Rc5 Qe4 Bf5 Qe7 Rd5 Rf8 Rd7 Rg8 Rf7 Rg6 Be5 Re6 Bef6 Re5 Rg7 Rb5 Rf7 Rb4 Rg7 Qe6 Rdf7 Qe7
6b1/2n3pb/3NBp1p/2K2prQ/Q1B2B2/qpq1P1R1/2k3nB/r1nN3B w - - 0 1 illegal: No proof kernel
QQn1Bb2/BppB1bP1/3rbn2/2p2pq1/7R/2kN2RK/B2p2b1/4B2n w - - 0 1 legal: proof: f4 g5 e4 a5 d4 d6 h4 gxh4 b4 axb4 c4 Bf5 c5 Bc8 d5 Ra6 Nc3 Rb6 f5 dxc5 Nce2 e5 Nd4 exd4 e5 Re6 fxe6 Bd6 Kf2 Be7 Ke1 Bf8 Kf2 Ke7 a4 f5 g4 h5 Kg2 b3 d6+ Ke8 e7 Kd7 e8B+ Ke6 d7 Kd5 e6 d3 a5 Kc4 g5 b2 a6 b1B e7 Ba2 g6 Kc3 g7 Kc4 a7 Rh7 a8Q Rh6 Nf3 Rh7 Ne5+ Kc3 Kh3 Rh6 Rb1 Rd6 Bd2+ Kd4 Rb5 Nf6 Ba5 Bf7 Bb6 Nc6 Ba7 Kc3 Qb8 d2 Qa4 Ng4 Nd3 Nf6 Kh2 h3 Rb3+ Kc2 Kg3 h2 Kh3 h4 Bg2 Nd4 Bd5 Nc6 Rb6+ Kc3 Ba2 Nd5 Rg1 h1B Rg3 Nf6 Rb4 Be4 Bb6 Bh1 Qaa8 Bf3 Ba7 Bg2+ Kh2 h3 Rh4 Bb3 Bh5 Bf7 e8B Qe7 d8B Qe3 Bd1 Qg5 Ba4 Ne7 Bac6 Bce6 Bcd7 Nc8 Be7 Rd5 Bd6 Rd4 Bf4 Rd5 Be3 Rd6 Bf2 Bed5 Be1 Bde6 Kg1 h2+ Kf2 h1N+ Kg1 Be4 Kh2 Bc6 Kh3 Bg2+
2bB3Q/P2Q2Nn/pKN2pn1/4q1N1/k5pn/p2r1B1p/3N1rnR/2r1N3 w - - 0 1 illegal: No proof kernel
1Q5Q/2p1k1BN/2qrn2N/Kn2b2q/N1Pr1Rq1/N2r3R/Nr2br2/2q2q2 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 axb6 Ng1 b5 Qf3 b4 Qe2 Nc6 Qd1 Nb8 h4 g5 d4 b5 Kd2 e5 f4 b3 Kc3 g3 a4 e3 a5 e2 a6 e1R a7 e4 h5 b4+ Kc4 e3 Kb5 e2 c4 b2 f5 g4 d5 b3 d6 Na6 d7+ Ke7 h6 Nf6 h7 Qe8 Nd2 b1R Nf1 b2 Qd2 Ne4 Rh3 Qh5 d8N Nd6+ Ka4 Bg7 Ra2 Rd1 Qc3 e1R Qb3 Rd4 Nd2 Re2 Nf7 Nb5 Qc2 Nc5+ Ka5 Be5 Qb3 Rf2 Qb4 Rhd8 h8Q R8d6 Nh6 Ne6 Ne2 g1Q Nc3 g2 Qb3 Rb8 a8N g3 Nb6 Qf1 Nba4 g1Q Qb4 Ra1 Ndb1 g2 Na3 b1Q Bb2 Qbc1 Qb3 Qh1 f6+ Kd7 f7 g1Q f8N+ Ke7 Nh7 Qgg4 Qb4 Qc6 Qb3 Rb1 Ra1 Bd7 Na2 Rd8 Bc3 Rbb2 Rb1 Na7 Qb8 Nb5 Ra1 Qd2 Re1 Qc1 Re4 Be8 Rf4 Bg6 Rff3 Bd3 Rf4 Be2 Rff3 Bg3 Rf4 Rd3 Bg7 Bh2 Rf5 Be5 Rff3 R6d4 Rf4 R8d6
1nK5/kr6/3R2R1/1Rr2bn1/b4rR1/Q3p1n1/1qrNPqq1/NQRBb1q1 w - - 0 1 illegal: No possible last move
q7/n1B3Rr/R4Q2/p2krRr1/P1Nnn2R/2K1b1N1/3R1r1Q/1qbb1q1b w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 g5 d6 Bd3 dxe5 Bf5 e4 Bg4 hxg4 a4 Kd7 h4 Kd6 b4 e5 d4 a5 Kd2 f5 b5 c5 h5 f3 g6 e3+ Kc3 f2 d5 f1B g7 e4 b6 f4 b7 e2 h6 e1R h7 g3 Bb2 f3 Kd2 c3+ Kc2 f2 Rh2 e3 Rg2 e2 Kd3 c2 Kd2 c1N Kc2 c4 Ra3 c3 Nd2 Nc6 b8R Bg4 Nh3 Na7 Rb5 Nf6 g8R Nb3 Qa1 Ne4 Nf4 Bh6 Nh5 Be3 Rg7 Nd4+ Kd3 Rf8 h8Q c2 Ra2 c1B Rh2 g2 Ng3 g1R Rh4 Ke5 d6+ Ke6 d7 Bg2 Rbg5 f1Q Nc4 Rf2 Rf5 Bh1 Bc3 Rb8 Rd2 Rb7 Qh5 Qb8 d8R Qa8 Bb4 Rd7 Bd6 Rgg2 Be5 Kd5 Rc8 Re7 Bc7+ Re5 Rb8 Rd1 Rb6 e1Q+ Ne2 Bf3 Ra6 Rg5 Qh7 Ba3 Qb2 Ra1 Qb6 Bc1 Qf6 Rb1 Qh8 Rb8 Qh7 Rh8 Qhh6 Rh7 Qh5 Qg1 Ng3 Bd1 Qe2 Rf1 Qh2 Rf2 Rc2 Qb4 Rd2 Qb1+ Rc2 Nd6 Kc3 Qf1 Rd2 Ne4+
1k1brb1n/n3N1rR/1qbnN1b1/5Qp1/rn1B4/1B6/r1N1KqP1/1Q3N1N w - - 0 1 illegal: No proof kernel
n1K1b2b/Q2qkrn1/p1B1B2B/1Qq2R1B/1r5N/P5nb/B1n2qb1/2q1N3 w - - 0 1 legal: proof: d4 g5 f4 gxf4 b4 c5 g4 cxb4 g5 e5 a3 exd4 Ra2 h5 Rb2 Bg7 Rb3 Bh6 Rg3 Bf8 Rg4 hxg4 Kf2 d5 h4 f5 c4 b5 e4 f3 Kg3 b3 Kf4 d3 Ke5 f2 c5 d4 g6 b4 g7 g3 h5 b2 c6 a6 c7 d2 h6 g2 h7 f4 Nf3 g1Q Bb5+ Ke7 Rh4 f1B Rh6 b3 Rf6 d3 Rf5 Qd7 Nh2 f3 Nc3 b1B Na2 f2 Qe2 d1N Bd2 b2 Nb4 Nh6 g8B Ne3 Qf3 Ra7 Qg3 Nc2 Bgc4 Bg2 Qe3 f1N Nf3 Ng3 Bc6 Qf2 Nh4 Rb7 Bc1 d2 Ba2 d1Q Qa7 Qdg1 Nd3 Rb4 Ne1 Rg8 h8Q Rg7 Qg8 Rh7 Qc4 Rf7 Qb5 Bg7+ Rf6 Nhf5 Bh6 Qe8 Kd5 Bh8 Ke5 Ng7 Rf5 Bd7 c8B Qd8 Kd5 Bh3 e5 Qc7 e6 Be8 Bf4 Nd7 Be3 Qb7 Bh6 Nb6+ Ke5 Na8 B8d7 Kf8 Kd6 Qc8 Bf3 Qd8 Bh5 Qe7+ Kc6 Qfc5+ Kb7 Qgf2 Kb8 Bg2 Bc6 Qd7 Bg4 Ke7 Bh5 Kd6 e7 Bh3 Be6 Ba2 Bcd5 b1Q Bc6 Bc4 Bcd5 Bcf1 Bb3 Qc1 Ba2 Qd8+ Kb7 Bd7 e8B Ke7 Bf3 Bfg2 Bc6 Rf6 Bh5 Be8 Bac4 Qdd2 Ba2 Rf7 Kc8+ Qd7+
BR6/pb2Rrk1/R3b1n1/PQ1bNqRr/3q2q1/1Q6/rpnb2N1/1b3KR1 w - - 0 1 legal: proof: f4 c5 g4 g5 b4 cxb4 e4 d5 Bb2 dxe4 Bf6 gxf4 g5 h6 g6 Bg4 Bh4 Bc8 Bg5 hxg5 a4 f5 h4 e5 c4 b5 d4 b3 c5 f3 c6 b4 a5 f2+ Ke2 g4 h5 f4 h6 e3 c7 g3 h7 b2 d5 f3+ Kd3 e2 d6 e1R g7 Kf7 d7 e4+ Kd2 g2 Ra3 b3 Qc1 e3+ Kd3 e2 Qd1 Na6 Ra4 Nb4+ Kd2 Bb7 c8R Ne7 g8R Ng6 Rh2 Nc2 Rg4 Bb4+ Nc3 b1B Rh6 b2 Rb8 Qg5+ Kd3 Qf5+ Kd2 Bd5 d8Q Bb7 Re8 Kg7 Qd5 Rf8 h8R Rf7 Qb5 Bd5 Nh3 g1Q Rg5 Qgg4 Bg2 f1B Ng1 f2 Re7 Bb7 Bh1 Bh3 Nf3 f1B Ne5 Bfg2 Rhe8 Bgd5 Rg8+ Kf6 Rg7 Rg1 Be4 e1Q+ Kd3 Rh1 Ne2 Bd2 Nf4 Qf2 Ng2 Qc5 Qf3 Qd4+ Ke2 Rc1 Rbe8 Rc8 Rgg8 Rc3 Rb8 Rh1 Rg7 Rh2 Kf1 Ra3 Rgg8 Bf4 Qfb3 Ra2 Rgc8 Kg7 Rc6 Qg3 Ra6 Bd2+ Bf3 Bg4 Rh3 Qgf4 Rg3 Qf4e4 Nf4 Rh7 Rg1 Rh5 Ng2 Bh3 Nd7 Qef4 Ne5 Q4g4 Q3d3 Qf6 Rbe8 Bc4 Rc6 Qge4 Ree6 Bc8 R6e7 Bhe6 Ra6 Qff5 Qb3 Qeg4 Rh8 Bf4 Ba8 Bcd5 Qdb5 Bcb7 Rb8 Bd2+
Q3K3/1B1pb1N1/2B2pb1/B2b2k1/1B2bq1b/B1N4R/1b1Pr1rQ/4nqnr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 b5 e6 Ra3 exf5 Rb3 f4 Rb4 cxb4 Kf2 Ke7 h4 Kf6 c4 a5 e4 g5 c5 a3 c6 a4 b6 b3 c7 b2 h5 g3+ Kf3 a2 Kg4 a1B b7 a3 h6 a2 Kh5 f3 h7 g2 Na3 b1B Rh4 f2 Nc2 g4 Bc4 f1B Ba6 g3 Qe1 Be7 Bc4 Bd3 Nb4 Nc6 b8B Nd4 Qe2 Qf8 Nh3 g1B Ba3 g2 Ng5 Nh6 Ne6 Ng4 Ng7 Ne3 Rh3 Nec2 Bd5 Ne1 Bc6 Bb7 c8B Ndf3 Bc7 Bb2 Ba5 a1Q Na2 Bf2 Nc3 g1R B5b4 Rg8 h8B Bh4 Qh2 Rh1 Kh6 Rb8 Kh7 Ba8 B8b7 Kg5 Ba5 Re8 B3b4 Kg4 Kh6 Ng1 e5 Bg6 e6 Bbe4 Ba3 Bc5 e7 Qd1 B3b4 Qe2 Ba3 Qf1 B5b4 Rc8 e8Q Bce7 Qd8 Bd5 Qa5 Re8 Ne4 Bh7 Bc3 Nd3 Ba4 Qf3 Bc8 Bab7 Qa8 Bbc6 Ba5 Bd6 Bb7 Ne1 Bb5 Re7 Ba4 Qb8 Ne6 f6 Bb5 Bb3 Nc3 Qf1 Bg7 Bb4 Bf8 Qbf4+ Ng5 Bf3 B5c6 Re2 Be7 Bbd5 Bf8 Qc7 Ne6 Bfe4 Bc5 Rg5 Ng7 Qcf4 Be7 Bd6 Bf8 Be5 Bfb4 Bd6 Ne8 Bhg6 Kg7 Bc7 Kf8 Bd8 Nc7 Kf5 Ne8 Rgg2 Ng7+ Kg5 Rf3 Bgf5 Ke8 Be7 Rh3 Bg6+
2R1b1Nq/3N1n1N/1bN1BbnQ/B1b2bn1/1p5N/1Pp1k1KQ/n3rr2/5q2 w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 Bh3 d5 Bf1 dxc4 b3 hxg4 Nc3 a5 Rb1 a4 Rb2 a3 Nb5 axb2 a4 Qd6 Nc3 Qd8 Kf2 Kd7 d4 Kd6 h4 b1B e4 g5 d5 Kc5 a5 b5 e5 f5 a6 f3 e6 g3+ Ke1 b4 d6 f2+ Ke2 f4 Kf3 g2 h5 g4+ Ke2 g3 Kf3 Nc6 e7 Bg7 e8N Ne5+ Ke2 f3+ Ke3 Ng6 a7 Bbf5 h6 Bcd7 h7 Bf6 Rh3 Nh6 Qd2 Nf7 Bd3 f1Q Nd5 f2 Kf3 Kd4 Ne7 c5 Qh6 c3 Bg5 c4 Ng8 c2 Rh2 c3 Bc4 c1N Be6 Rc8 a8N Na2 Nb6 Rc5 Bf4 Re5 Qh3 Ba4 d7 Re2 Bc7 Qc8 d8N Bd7 Ng7 Be8 Nd7 Qb8 Ba5 Qe5 Ne7 Rf8 h8Q Qb8 Q3h6 Qc8 Nh3 g1B Rh1 g2 Kg3 Ke4 Ng5+ Ke3 Ndc6 Bd3 Rh5 Qa1 Bd8 f1N+ Kg4 Bd4 Kh3 Nfe5 Nd5+ Kf2 Na5 Ng3 N5f6 Ne4 Bb6 Bf7 Nf5 Qf1 Rh4 Qd8 Qh5 Qc8 Q8h6 Qd8 Ng8 Qf6 Nge7 Be8 Nh7 Qh8 Ng8 Rf6 Nc4 Nf7 Ba5 Neg5+ Kg4 Bb6 Nce5 Bh2 Nc6 Be5 Nce7 Nf3 Kh3 Bb1 Rc4 g1B+ Kg4 N3g5 Qh3 Bed4 Nh4 Rf4+ Kh5 Bf5 Rc8 Bdc5 Nc6 Bh2 Qg4 Ke3 Qh3+ Bg3 Ndb8 Rff2 Nd7 Bb1 Kg4 Be4 Qg2 Be5 Qh1 Bf6 Kg3 Bd3 Qh3 Bf5
3NbQ2/4Qq1Q/1Qr3bK/Qp1qRB2/1R3q2/bb1r1kb1/1P2pq1B/nn6 w - - 0 1 illegal: No proof kernel
1n1k1Nb1/1Q1b1b2/prpR1Nq1/2P1r1b1/R3N1N1/1r1nB1Q1/N7/nq1K2n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 d4 e5 b4 f5 c4 a3 h4 a2 c5 g3 g6 e3 d5 e2 h5 e4 h6 c6 g7 a6 b5 f3 h7 f2+ Kd2 e1R d6 f1B b6 e3+ Kc2 f4 b7 f3 Rh2 f2 Nh3 e2 Qd4 g2 Be3 g1N Qf4 Qf6 d7+ Kd8 Qg4 Be7 Nc3 Nh6 g8N Nf7 Qg3 Ne5 Ng5 Qg6+ Nge4 Nd3 Rh6 Bg5 Ngf6 Rb1 Kd2 Re8 h8N e1Q+ Kc2 Rb6 Nf7+ Ke7 d8N Qb1+ Kd2 Bd7 Ne6 Bg2 Nf8 f1B Ne5 Kd8 Neg4 Re5 Nd6 Bd5 Nde4 Nc1 Kd1 Bf7 Rh2 B1c4 Rd2 Bg8 Rd3 Bcf7 Rd6 Qb2 Rb1 a1N Na2 Qb5 Rb4 Nd3 Ra4 Qb1+ Bc1 Rb3 Qg2 Ra7 Qf3 Rb2 Qg3 Rb3 Re6 Bc8 Rd6+ Nd7 b8Q Rab7 Qa7 R7b4 Qb7 Rb6 Re6 Nb8 Rd6+ Bd7 Nh6 Qb2 Nhg4 Qh6 Bd2 Qg6 Be3 Qb1+
2r4N/n3br1k/Bp1Q3q/2NK1N1b/r2q3R/bP1qr3/NNQBnp2/1b6 w - - 0 1 illegal: No possible last move, all moves rejected
K1r1Rr2/3Q1b1N/n1B1p2q/1rRn1R1n/kb1n1pR1/b2p1nR1/4NP2/7Q w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 Be3 d6 d5 dxe5 Bd4 cxd4 Qg4 e4 Qh5 Bf5 Qd1 Bc8 Kd2 Kd7 a4 b5 c4 h5 g4 f5 c5 f4 d6 Kc6 g5 d3 g6 h3 a5 h4 a6 e3+ Ke1 b3 g7 e2 Kd2 e1B+ Kc1 h2 Kb2 h3 Ka3 b2 d7 b4+ Ka4 b3 a7 Nf6 g8R Nd5 Nc3 b1R Qf3 b2 Ne4 Qb6 d8Q Be6 Ne2 Na6 Rg3 Rc8 a8R Bf7 Ng5 Bb4 Rhg1 h1N Bg2 h2 Nh7 Ba3 Rg4 Ng3 Bh1 Nf5 R1g3 Nd4 Qg2 Qb7 Ka5 e6 Qf1 Bd6 Be4 Qe7 Qh1 Qg5 Qe7 Rcf8 Re8 Qh6 Bg2 Re1 Ra2 b1N Rb2 Nd2 Rb5 Rb1 Qd8 N2f3 Qc8+ Ndc7 Qd7+ Kd5 Kb6 Kc4 Ka7 Nd5 c6 Bdb4 c7 Kb3 c8R Ka4 Ka8 Rb2 Qf1 h1N Rcc5 Rb1 Rh3 Ng3 Qh1 Nh5 Rhg3 Nc3 Rcg5 Nd5 Rf5 Ba5 Rc5+ Rb5 Qd6 B5b4 Qd8 Ng5 Be4 Ngf3 Qd7 Ne7 Bb7 Nd5 Bc6 Rfg8 Rc8 Re8 Rb8 Rhf8 Ka7 Rc8 Ka8 Rc7 Re8 Rc8+
4Kq2/1bQ1nR2/pq1b4/P4n1k/r1qQp3/Q1Q3b1/nN1Q1rBp/B4Nn1 w - - 0 1 legal: proof: b4 d5 c4 b5 a4 bxc4 e4 dxe4 h4 f5 h5 f4 h6 gxh6 Ra3 h5 Rf3 h4 Re3 fxe3 Ke2 Kf7 d4 Kg6 g4 h5 f4 c5 d5 e5 f5+ Kg5 f6 c3 d6 h3 f7 h4 b5 h2 b6 h3 b7 c2 d7 c4 Nd2 c3 Bb2 c1Q Bg2 c2 Nc4 Nh6 Qd4 Bd6 f8Q Nf5 Ba1 Qb6 Nb2 Nc6 d8Q+ Nce7 b8Q Bb7 Qbc7 a6 a5 Rh4 Qdc3 Kg6 g5 Kh5 Qdd7 Rc8 Qf6 Rf8 Nf3 Rf4 Rg1 h1Q g6 h2 g7 Rf7 g8Q Rg4 Nc4 Qa3 Rb1 Qhc1 Nfd2 Qac5 Qfg7 Q1a3 Nb2 Qc4+ Nd3 Rf8 Nf1 Rf7 Q8f8 c1N+ Kd1 e2+ Kd2 e1N Nb2 Na2 Qf6 Nd4 Ke3 Nef3 Rd1 Qac5 Rd2 Ng1 Rf2 Nec6 Q6d8 Ne7 Qa4 Rf5 Qg7 Rf8 Rf7 Rh4 Qaa3 Ndf5+ Kd2 e3+ Kc2 Qcb3+ Kd3 e2 Qdd7 e1B Qg4+ Kh6 Qd4 Kh5 Qdd8 Rf4 Qdd7 Bg3 Qdd8 Nc6 Qdd7 Rf2 Ke4 Qcb4 Qdd8 Q3a4 Kd5 Nce7+ Ke6 e4 Qdd7 Rc8 Qdd8 Q4c5 Qdd2 Qac4+ Kd7 Q5b4 Qb8 Rc5 Qbc7 Rb5 Qdd4 Qb4c5 Qdd2 Rb4 Ke8 Ra4 Qdd7 Bde5 Q7d4 Qcd6 Qdc1 Qf6 Qf4 Bd6 Qfe3 Qh6 Qed2 Qf8+
2RR2N1/3bKb2/4p1B1/p3PN2/3bnbQQ/N2br1N1/nr1q1p2/4kNrr w - - 0 1 legal: proof: f4 b5 g4 c5 a4 bxa4 d4 cxd4 f5 h6 Bg5 g6 Bf6 gxf5 g5 f4 g6 Nc6 Bh4 Nb8 Bg5 hxg5 Kd2 d5 Kd3 Kd7 e4 Kc6 h4 Kb5 b4 f5 c3 a5 e5 e6 g7 a3 h5 f3 h6 g4 h7 a2 Qc1 f4 Qd1 f2 Rh3 g3 Rh5 g2 Rh1 f3 Ne2 g1R Ng3 Bd7 Nd2 Na6 Rc1 Nf6 g8N a1B Rh4 Ne4 c4+ Kb6 b5 Kc5 b6 Kb4 c5 Bh6 b7 Rb8 c6 Bf4 Be2 f1B c7 f2 c8N Rh1 Nd6 Bc3 Nb5 Bb2 Kc2 d3+ Kb1 d4 Ka2 Ba1 Bh5 Be2 Ndf1 d2 Rc5 d3 Rc8 Bd4 Na3 Qg5 Rd8 Kc3 Bg6 Rh3 Qa4 d1R Rg4 d2 Rh4 Ra8 b8N Bd3 Nc6 Rb8 Nce7 Rdb1 Rh6 d1B Nef5 Bh5 Qd1 R8b7 Qg4 Rc1 Nh1 Re3 Nhg3 B3b5 Rc8+ Kd3 Kb3 Nb4 Nge7 Rg8 h8Q Na2 Qf6 Rb8 Rh8 Rg7 Rhd8 Rb6 Nh2 Rh1 Ng8 Qh6 Qfh4 Kd2+ Rc3 Ke1 Nhf1 Ba4+ Kc4 Rb2 Bh7 Bf7 Bg6 Bc8 Rc2 Bb3+ Kb5 Bc4+ Kc6 Bd3 Kc7 Bd7 Rc6 Ng5 Kd6 Ne4+ Ke7 Rh7 Rcc8 Rg1 Qf6 Qg5 Rf8 Rhh1 Rfd8 Qh6 Qfh4 Qh5 Qgg5 Qd1 Qgg4 Qd2
NN3bb1/pN6/pK2QRb1/1p1q1r1r/rb1QBrkn/8/P3R3/1nr1NN2 w - - 0 1 illegal: Other
6k1/3b1q2/1NrQ2qR/1prRp1qb/1NQ2p2/nQq1bPQ1/bn5B/3QK3 w - - 0 1 legal: proof: h4 c5 e4 a5 b4 d5 h5 dxe4 h6 a4 Be2 cxb4 Bc4 gxh6 Rh4 h5 Bb3 axb3 Rh1 h4 c4 h5 g4 b5 d4 f5 a4 Kf7 d5 e5 g5 f4 a5 b2 c5 h3 c6 h2 c7 e3 a6 h4 a7 e2 d6 b3 d7 h3 Ra4 Rh6 Nc3 b1B Be3 b2 Bb6 Ne7 g6+ Kg8 g7 Nf5 Ra1 Nc6 Qc1 Nfd4 Qc2 Bc5 Ra4 Ba2 Qd1 b1Q Nf3 Qg6 Nd2 Na5 Nd5 Qdg5 Nb4 Nc4 Ra3 Rb8 a8Q Nb2 Qg2 Qf7 Rf3 Rc6 Qg3 Qgg6 Nc4 Nc2+ Kd2 Na3 Ke1 Bd4 Rd3 Be3 Rd5 Ra8 Bd4 Raa6 Nb6 Rc5 Rg1 h1Q d8Q+ Kh7 Qf8 h2 Qd6 Qg2 Rh1 Bd7 c8Q Qg5 Qcc7 Kg8 Qcc6 Qe4 Qcc7 Qeg6 Qcc6 Rc3 Qc4 Rc2 Na4 Rc6 Nb6 Bg4 Qb3 R2c5 f3 Bh5 Rg1 h1B Rf1 Bc1 Bg1 Be3 Bh2 Bg2 Rh1 Bh3 Qc4 Bd7 Qcb3 Kh7 g8Q+ Kh6 Qa8 Kg7 Qaa4 Kh7 Qc4 Kg8 Qab3 Qge6 Bg1 Bg6 Rh6 Bh5 Bh2 Qeg6 Qe6 Bc1 Qd6 Bd2+ Kf2 e1Q+ Kg2 Qe3 Kf1 Qc3 Ke2 Be3 Kf1 Qcc2 Ke1 Qc3+
qNBQ1q2/br3n1Q/4RRqq/3R1Kpp/2p5/1R1n2RP/N1b2k2/rn2n3 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 g5 e5 d5 f6 Ba3 fxg5 Bb2 g4 Bd4 exd4 Kd2 Kf7 e4 Kg6 f4 Kh5 a4 Kh4 e5 h5 a5 c5 e6 b5 h3 Kg3 d6 d3 Ke3 d2 Ke4 c3 d7 c2 a6 c1Q a7 c4 f5 b3 e7 b4 e8R b2 f6 b3 f7 Bc5 f8Q Nc6 Rh2 Rh7 Be2 Nh6 Qff1 Nf7 Qf6 Nce5 Re6 Qf8 d8R Nd3 Qc2 d1Q Nc3 b1Q Nf3 b2 Nd4 Qh1+ Kf5 Qh6 Na2 g5 Rd5 Qg2 Qd8 Kf2 Nc6 g3 Rh1 Bd7 Nb8 Ba4 Rg1 Bb6 Qc3 Bc2 Qh8 Qh1 Qg8 g2 Bg4 Rg7 Qh7 Bd4 Rge1 g1N Rf6 Nf3 Re7 Nfe1 Ree6 Qd1 Rc1 Qd2 Rd1 b1N Rb5 Qdb4 Rb7 Qbd6 Rb3 Ng2 Rg1 Nge1 Rg3 Qdd5+ Re5 Qe8 Nc3 Qd6 Rg6 Qhc6 Rd5 Qg8 Ke4 Nh8 Bc8 Qdf8 Rd6 Rc7 Rg6 Nf7 Kf5 Qa4 Rf6 Rb7 Nd7 Rab8 a8R Qa2 Raa6 Ra8 Rae6 Qa7 Re8 Qb8 Ree3 Ra1 Ree6 Ba7 Na2 Qa8 Nb8 Qgg6+
2QQ3b/Rq2nR1p/rB3p1N/Qb1Q4/3p3P/2Kb1bp1/1nNQ1rb1/1kr5 w - - 0 1 illegal: No possible last move, all moves rejected
kn5n/2K3R1/1RpB1b2/4rQNp/bq1q1rQP/1ppB3B/3n3B/1Bn3n1 w - - 0 1 legal: proof: f4 d5 b4 a5 c4 dxc4 f5 axb4 f6 e5 Na3 e4 Nb5 gxf6 Nd4 f5 Ndf3 exf3 Qc2 f4 Qa4+ Ke7 Qd1 Ke8 Kf2 Kd7 e4 Kc6 a4 b5 g4 Kb7 h4 h5 d4 f5 a5 c3 a6+ Ka7 e5 b3 d5 b2 d6 b1Q d7 b4 e6 b3 g5 Qe4 e7 Bg7 e8B Ne7 g6 Rf8 Bd3 Qb4 Ba3 Bf6 g7 Ng6 g8B Nh8 Nh3 Bb7 Qc2 Bc6 Bh7 Ba4 Rhg1 c6 Rg7 Rf7 Ra2 Re7 Ng5 Re5 Kg1 f2+ Kh2 f3 Kg3 Qdb6 Bf7 Qe3 d8B Qed4 Bc7 f1N+ Kh3 f4 Be6 Qbc4 Bad6 f2 Kg2 Qcc5 Kf3 Ng3 Bh3 f1N Qg2 Ne2 Qg4 Qb5 Bb1 Qbb4 Bhd3 Nfg3 Ra1 Bb5 Ra5 Ba4 Rb5 Nc1 Rb6 Nd7 Qf5 Rf8 Bb8+ Ka8 a7 Nge2 Ra6 Kb7 a8Q+ Kc8 Rb6 Ng1+ Kg2 f3+ Kg3 f2 Qa5 Qdc5 Qg4 Qcd4 Qd5 Rf7 Qde4 f1N+ Kf4 Nd2 Bbc7 Ree7 Kf5 Nb8 Qef4 Rd7 Ke6 Rf8 Qff5 Rdf7 Ra6 Kb7 Rb6+ Ka8 Bh2 Rd7 Bce5 Rd5 Bd6 Na6 Kd7 Nb8+ Kc7 Re5 Qc8 Be7 Qce6 Rf4 Qef5 Bf6
n1bR1rB1/4bRnr/2Qq3q/1Q1p2Np/2pP1p2/1R4K1/Rn4nN/R5bk w - - 0 1 illegal: No possible last move, all moves rejected
1Qn1qn2/2rkN3/Q1pNq2Q/1rR3pn/q1BQ1B2/3p2Pb/1bp3QK/q7 w - - 0 1 illegal: No proof kernel
kn3N2/ppq1r3/4p1Np/2N1bbQ1/1KbBP2N/3NRRr1/qn4bQ/1r6 w - - 0 1 illegal: No proof kernel
1r1QnKN1/1N5Q/3Rbq1p/2b1r1p1/p4N2/nqnpRn1P/2bN1N2/2kB4 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 cxd4 g5 bxa4 g6 e5 Be3 d3 Bd4 exd4 Bh3 fxg6 Kf1 g5 Kg2 g4 Kg3 d2 Bf1 Nh6 Kg2 Ng8 e4 Kf7 Kg3 Kg6 Kf4 d5 Ke5 Kg5 f4+ Kh6 b4 g5 c4 a5 b5 d3 f5 d4 b6 a3 c5 g3 f6 g2 c6 a4 f7 a2 c7 Ba3 f8N Na6 b7 Nb4 b8Q Nf6 Qa7 Rb8 Be2 Be6 c8N Ne8 Nd6 Nd5 Ng6 Bc5 Nh3 g1N Ngf4 Nc3 Nb7 Kg7 Bg4 h6 Nf2 Rg8 h3 Kh7 Qb3 d1Q Qd5 Qb3 Bd1 d2 Qd6 Qdb6 Qd8 Rg7 Rh2 Re7 Rg2 Qc6 Rg3 d3 Re3 Bd5+ Kf5 Nf3 e5 Qa6 e6 Bc4 Be2 d1B Nd2 Bc2 Re1 a1N Bd1 Qab6 Re4 Qd6 R1e3 Bd5 Rd4 Kg7 Kg4 Kf6 Kh5 Bc4 Rd5 Qa6 Rd6 Kf5 Nde4 Ke5 Kg6 Bd5 Nd2+ Kd4 Nde4 Kc4 Nd2+ Kb4 Qa8 Ka3 Qa7 Rc7 e7 Kb2 Kh7 Be6 Kg6 Kc1 Kh7 Ng7 e8N Re7 Nf6 Ne8+ Kh8 Bd7 Ng8 Re5 Kh7 Be6 Kh8 Nc7 Kg7 Ne8+ Kf8 Qab6 Qd7 Qd8 Qa5 Qf6+ Qf7 Bb1 Qd8 Nc2 Re2 Na3 Re3 Qh8 Qf5 Bc2 Qh7 Qf6+
Q3bq2/2pQ4/KRr4r/1pR1n2B/Bb6/n1Np2Bp/1Pr1B1kq/Bb2r3 w - - 0 1 illegal: Other
Q2R2Qn/R2B1pRr/3p2n1/Kbp1bbn1/2qk3r/5R2/Rp1P2q1/1nB2N2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 Na3 bxc4 b5 e5 Nc2 exf4 Nb4 axb4 g4 Ke7 a4 Kd6 e4 Kc5 g5 h5 g6 b3 b6 h3 a5 f3 e5 h2 a6 f2+ Ke2 c3 Kd3 h4 g7 d6 b7 h3 e6 c2 Kc3 Nc6 b8R Rh4 a7 Ne5 e7 Bf5 e8R Qc8 Rb6 Ne7 g8Q N7g6 Nf3 Bg7 Bc4 f1B Bb2 c1N Rg1 h1N Rg5 h2 Qf8 Ng3 Qg8 h1Q Rd8 Nh8 Bb5 Qg2 Bd7 Bb5 Ra2 c6 Qh1 Neg6+ Ne5 Rb8 a8R Kd5 R2a7 Ne4+ Kb4 Ne2 Ka5 N2c3 Ng4 Be5 Nh2 Kd4 Bc1 b2 Nf1 Nb1 Rg3 Ng5 Rf3 Bbd3 Rb3 Bb5 Ra3 c5 Ra1 Qc6 Ra2 Rc8 Rb8 Qd5 Rba8 Qc4 Rb8 Ba4 Rbb3 Bb5 Rg3 Qg1 Qa8 Qg2 Rbf3 Ne4 Kb6 Nf8 Rg7 Ng5 Qh7 Nfg6 Rdg8 Re8 Rf8 Re6 Rb8 Nf8 Rd8 Reh6 Qg8 Rh7 Ka5 Nfg6
8/2pprQ1B/rBB1Bpp1/1B1rnPR1/R4n1q/2Q1pb1k/6Nb/bK5n w - - 0 1 illegal: No proof kernel
r3n2k/1Kp2Qq1/1R4p1/R2Rp1b1/2Rn3b/2Pn1R1N/NprB1rp1/1b4Q1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 axb6 Ng1 b5 Qf3 b4 Qe2 Nc6 Qd1 Nb8 Ke2 Kf7 Ke3 b5 h4 e5 d4 g3 a4 b3 f4 b2 h5 g6 h6 b4 f5 b3 h7 Kg7 a5 Qe7 f6+ Kf7 a6 Bd7 a7 Qa3 d5 Bg4 d6 Be7 d7 Bf5 d8R Nc6 Rh3 Nd4 Nc3 b1R Rd5 b2 Bd2 Rc1 Qg4 Qd6 Ra6 Qd7 Rb6 Rf1 Na2 Rf2 c3 Kf8 f7 Kg7 f8R Bg5+ Qf4 Nf6 Rh4 Ne8 Nh3 g1B Rff6 g2 Rg4 Rd8 a8R Bh2 Ra7 Bg3 Raa5 B3h4 Rf8 Rg8 Rff6 Kh8 Rf8 Be7 Qh2 Bef6 Qg1 Qg7 Rf4 Be7 Rff6 Ra8 Rfc6 Rf8 Rf3 Rf7 Rc4 Beg5+ Rf4 Qg8 Rd7 Rf1 Rb3 Kg7 Rb6 Rc1 h8Q+ Kf8 Qf6 Qg7 Rd8 Kg8 Qe6 Kh8 Qd7 Rf6 Qf7 Nc2+ Ke2 e3 Kf3 e2 Rd7 Nd4+ Ke3 Bg4 Ke4 e1N Kd5 Bf5 Kc5 Bd3 Rd5 Bb1 Rf2 Rc2 Rf1 Ne6+ Kc6 Nd3 Kb7 Nd4 Rf2 Rf3 Rf1 Re3 Rff6 Re2 Rf3 Rf2
4kbB1/1B1q4/3b2RP/1K1bn1bB/p1N2n2/1br1N3/q3n2Q/B1Q1N3 w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 g4 h5 a4 hxg4 Ra3 a5 Rc3 bxa4 Rxc7 a3 b5 Ra6 bxa6 Bb7 Rc8 Bxc8 h4 g5 d4 f5 Kd2 a4 Kd3 g3 Kc4 a2 e4 a1B h5 g4 h6 g2 e5 f3 d6 f4 d7+ Ke7 d5 f2 e6 g3 a7 f3 a8B Qc7+ Kb5 Be5 d8N Nd7 d6+ Ke8 e7 Bb7 Nc6 Ngf6 Nb4 Nh5 Na3 Nf4 Bc4 f1Q Nd5 f2 Nf3 g1B Bb2 g2 Qc1 Qe2 Ne1 f1B Ba1 Qa2 Ne3 Bd5 Bb7 Bf6 Rh3 Bh2 Rg3 g1N Rg6 Nge2 Bb3 Ne5 Nac4 Bg5 d7+ Kf7 d8Q Qd7+ Kb4 Bh3 Qc7 Bhe6 Ka5 Rh7 e8B+ Ke7 Bf7 Rg7 Bg8 Ke8 Bd1 Rh7 Nb6 Bb3 Nbc4 Bd5 Kb6 Re7 Ka6 Re6+ Ka5 Rc6 Kb5 Ng1 Bh5 Nge2 N3c2 Bg1 Qd6 Bc5 N2e3 Bb4 Qe6+ Bbe7 Qh3 Bd6 Qh2 Qc7 Nb6 Rc3 Nbc4 Qd7+
Nq1k4/1r4r1/1R1N1n2/2B2b2/bb4bP/N3rB1b/3Qr2q/1Q1K1QbN w - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 Nh3 c5 Ng1 cxd4 g4 hxg4 b4 a5 b6 Qf6 b5 Qg5 Ra4 Qd8 Rb4 Na6 bxa6 axb4 h4 f5 c4 d5 e4 g5 b7 b3 b8Q g3 e5 d3 e6 g4 a7 d2+ Ke2 d4 c5 g2 c6 d3+ Kf2 b2 e7 f3 c7 g3+ Ke3 f2 Qc2 d1B Kd2 f4 Ne2 g1R Qc5 f3 Na3 b1R Qcb4 g2 Qc5 Bf5 c8N Rb7 Qcc7 Ba4 Qg3 Nf6 Qg5 Qc7 Nb5 Qh2 Ng3 Kd7 Be2 f1B Ba3 f2 Qh6 Rh7 Bg4 Rg7 Ncd6 Be2 Qf4 Re1 Bf3 f1B Bc5 g1B Na3 B1h3 Qb4 Bed1+ Kc1 Re3 Qd2 Rc7 Qb3 Rb7 Qb1 Re8 a8N Be2 Bg2 Beg4 Bf3 Bf2 Re1 Bg1 Nh1 Re2 Qdc2 d2+ Kd1 Rb3 Qcc1 Reb8 Rf1 R8b7 Qcc2 Rbe3 Rf2 Ke6 e8Q+ Be7 Qg6 Kd7 Qf7 Kd8 Rg2 Bh5 Rg4 Bf8 Rb4 Bh5g4 Rb6 Be7 Nc8 Bd6 Bd4 Bc5 Nd6 Bb4 Bc5 Rc7 Qfb3 Ba5 Rb5 Rf2 Qbd3 Rce7 Qf1 Rfe2 Rb3 Ref7 Qd3 Bc3 Kc2 Ba5 Kb2 d1Q+ Qd2 Rc7 Rb7 Qb3+ Kc1 Rce7 Qfe1 Qb6 Qf1 Qc7 Rb6 Bb4 Qd4 Qb8 Qd2 Rb3 Kd1 Rb7 Qdc1 Rbe3+ Qcc2 Bc6 Qd2 Ba4+
br1k4/bn6/1nQB1K2/b1q1R1B1/1QRQ1q2/Rqn5/q1n3P1/QN4b1 w - - 0 1 legal: proof: a4 a5 f4 b5 axb5 e5 h4 exf4 d4 g5 e3 c5 c3 cxd4 Na3 g4 Nc2 d3 Be2 dxc2 Bf3 gxf3 Qd2 Ra6 Qd5 Rg6 Qd1 Rg5 hxg5 Be7 Kd2 Ba3 Ke1 Bf8 Kf2 h5 b4 d5 g6 f5 g7 h4 b6 d4 e4 d3 b5 a4 b7 d2 e5 a3 e6 h3 b6 h2 c4 a2 e7 Na6 b8B Qd3 c5 Qb3 c6 Nc5 c7 Nf6 g8R Nb7 Qe1 d1N+ Kf1 f2 Ke2 f1N Bd2 c1B Nf3 Nfe3 Rb1 a1B Qg3 Bd4 Rg6 Nc2 Be3 Bd2 Qe1 Ba5 Rc1 Nd5 Rg5 N1c3+ Kd3 Kd7 Rf1 h1Q Nd2 f3 Nb1 f4 Re5 f2 Qd2 f3 Bg5 Qg1 e8Q+ Kd6 Qg6+ Kd7 Qf6 Bfc5 Qdf4 Be3 Qd4 Qa2 Rfe1 f1Q+ Re2 Qd1+ Rd2 Nd8 b7 f2 Qa6 Ba7 Qf6 Ne2 Ke4 Nc3+ Kf5 f1Q+ Rf2 Qfc4 Rf3 Qh2 Rh3 Bg1 Qa6 Qc5 Qf1 Na4 Ra3 Nb6 Qe1 Rg8 Qec3 Re8 Qa1 Qf4+ Kg6 Qd3+ Kg7 Qdb3 Kg6 Ne3 Rc4 Nc2 Kg7 Kc6 Kg6 Nc3 Kg7 Bg4 Kg6 Bf3 c8Q+ Kb5 Bc7 Kc6 b8Q Rf8 Qa6 Nb7 Bd6 Kd7 Qb5+ Bc6 Qa8 Rb8 Qb4 Bf3 Kg7 Nd8 Qae4 Kc8 Qg6 Ba8 Qge4 Nb7 Kg6 Qe3 Kf6 Kd8 Qc6 Qf4+
1RQQ1rN1/Kb3qqr/Q3qq2/rN5r/1b1Q3B/N1RP1k2/r7/5b1b w - - 0 1 legal: proof: c4 a5 f4 d5 a4 dxc4 b4 axb4 f5 b5 f6 b3 Ra3 b4 Nh3 Nc6 Ra1 exf6 Ng1 f5 Ra2 f4 Ra3 Bc5 Ra1 Bf8 g4 h5 Na3 f5 Nh3 f3 Nb1 f4 Ng1 Nh6 Bh3 Nf5 gxf5 Nd4 Bg4 Nb5 axb5 hxg4 Kf2 Kf7 h4 Kf6 e4 Ke5 b6 c5 f6 g5 h5 b2 h6 c3 h7 c2 f7 g3+ Ke1 f2+ Ke2 f1B+ Kf3 c4 b7 g2 b8N g4+ Kf2 f3 Ke3 f2 Rh3 g3 Ra4 c3 Ne2 g1Q Nd4 b3 Qg4 g2 Rb4 Bb7 Rf3 Ra5 Qc8 Qf6 Na3 b1B Ndb5 b2 Qc6 Ba2 Qa6 b1Q Rh3 Rg8 h8Q Qb3 Bb2 Bd6 f8Q c1R Qd8 Rf8 Rg3 Ra1 Nd7+ Ke6 e5 Kf5 Kd4 Kf4 Qc8 c2 Rc3 c1R d3 Kf3 Qg7 Qff7 Nf6 Qbe6 Ng8 Bad5 Rbb3 Rc2 Bc1 Be4 Bg5 Bb4 Bh4 Rca2 Qd8 Qh2 Qh8 g1Q Qc8 Qhf4 Rb2 Qh3 e6 Qgg7+ Kc4 Qf7f6 e7 Re1 e8Q Qff7+ Qae6 Q4f6 Qed8 Bec6 Rb1 Re5 Kd4 Bd5 Qa6 Qhe6 Qh7 Kg2 Qcc7 Be7 Qcc8 Be2 Bg3 f1R Nc7 Bbc6 Qh4 Rh1 Rb8 Bb7 Ncb5 Bf1 Qf4 Rh7 Bh4 Bd6 Qe3 Reh5+ Qe5 Bc7 Kc5 Bd6+ Kb6 Bb4+ Ka7 Bf3 Qed4 Bfe4 Bg5 Kg3 Bh4+ Kf4 Q4d7 Bh1 Qd4+ Kf3
rBq1q3/1KR4R/1QQ1N1Qr/7N/qrb2p1n/3q2R1/b4qPR/k6n w - - 0 1 legal: proof: f4 a5 b4 b5 bxa5 g5 a4 c5 h4 gxh4 d4 cxd4 e3 e5 a6 exf4 a7 Bd6 a5 Bc7 Bc4 Bb6 axb6 Kf8 Bd5 Ke8 Bc6 Nxc6 b7 Nb8 Bb2 f3 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kf4 Kd5 c3 Kc4 Ke5 h5 Kd6 d3 e4 f4 e5 f2 e6 f1B e7 h3 e8R h2 Qc2 b4 Ra6 h4 Ra2 b3 Ba1 b2 Re1 h3 Re7 d2 Qf5 Kb3 c4 d1Q+ Qd5 Na6 b8Q+ Nb4 Nc3 b1R Rd2 Nh6 Qbb7 Rb8 a8Q Qe8 Kc7 Nf5 Qd4 d5 c5 Be6 c6 Rh6 Qc5 d4 Qbb5 d3 Rh7 Nh4 Qaa5 Ra8 Qg5 Be2 Rc2 d2 Na4 Ka3 Bc3 Nd3 Be5 Nf2 Qab6 Rb4 Rc3+ Ka2 Qg6 Ka1 Kb7 Ba2 c7 Bec4 Nc5 Qa4 c8R d1Q Q5c6 Qe1 Ne2 Qed1 Re1 h1Q Bb8 Qf1 Ng3 h2 Rcc7 Qg1 Ree3 Qg4 Nh5 h1Q Rb3 Qhh3 Re1+ Qd1 Rg3 Qhd7 Ne6 Qdd8 Re4 Q1d3 Rh3 Qe1 Rh2 Nh1 Re3 Qf2 Rg3 Qc8+
bQ3q1n/nQP4r/K2N3k/4nqRp/2QrNbBR/3n3r/3R4/1q2Q3 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 cxd4 Bb2 f5 exf5 axb4 Ba3 b5 axb5 bxa3 Kd2 Kf7 Kd3 Kg7 Kc4 e5 f4 h5 g4 h3 b6 d5+ Kb5 h2 c4 a2 g5 e4 g6 e3 f6+ Kh6 b7 d3 c5 e2 f5 e1N f7 d2 g7 d4 c6 d3 c7 Nf3 f6 Ra3 Kb6 Ne5 Nh3 Ne7 g8R N7g6 Be2 Bd6 Qe1 d1R Nf2 d2 Ne4 Rh7 Bg4 Nh8 Rg5 Qf8 Nbc3 Nbc6 b8Q Bb7 Nb5 Ba8 Qb7 Rh3 Ka6 Na7 Rb1 a1N Rb2 Nb3 Rc2 Nc1 Ra2 Bc5 Nbd6 Ncd3 Rc2 Be3 Rb2 Qg7 f8Q Bf4 Qg8 Qe7 Qc4 Qf8 Rg1 h1Q f7 Qf3 Rh1 Rb1 Rc2 d1Q Rd2 Rb4 Rhh2 Qb1 Rh1 Qg8 f8Q+ Qg7 Qfb8 Qf8 Qcc1 Rd4 Qc4 Bg3 Rhh2 Q3f5 Rh1 Bf4 Rhh2 Rg3 Rh4 Rh3
1nn1N3/N1Qrq1B1/KnQ5/bp1nBkr1/2np2Rr/8/Q5NP/6Nb w - - 0 1 illegal: No possible last move
2n5/1RqnPQ1Q/Q1N2n1K/1B1pb3/2rb2NB/2N4k/2N2p2/1nr1n1n1 w - - 0 1 legal: proof: d4 c5 h4 cxd4 f4 e5 b3 exf4 a4 b5 axb5 g5 Ra5 gxh4 Ra6 Qc7 Ra1 Qd8 c4 a5 b6 a4 Ra3 Ba6 Ra2 a3 Rc2 Bb5 Rc3 Ba4 bxa4 dxc3 Kf2 Ke7 Kf3 Ke6 Kg4 h5+ Kh3 Kf5 c5 d5 g3 a2 b7 a1B a5 f3 a6 f2 a7 c2 c6 Bc5 c7 Nf6 c8N Be5 e3 Nbd7 b8Q Qc7 Qb7 Bcd4 Bb5 f1N Na3 Nd2 Ne2 Nb1 g4+ Kg5 Bd2 c1N Ne7 Nd3 Nc3 Ne1 Nc2 Rac8 a8Q Rhe8 Nc6 Re6 Nd8 Rc6 Qaa6 Rc4 e4+ Bf4 Ne3 Bfe5 Qc2 Kf4 g5 Kf3 g6 Kf4 Kh2 h3 g7 h4 g8N Kf3+ Kg1 Kg3 Nh6 h2+ Kf1 h3 Ke2 Kh4 Nc6 Kg3 Rf1 h1N Nhg4 h2 Qd3 Kh4 Nc2 Nf2 Be3 Nh3 Bf2+ Bg3 e5 h1N e6 Ng1+ Kd1 Kh3 Qh7+ Nh5 Kc1 Bge5 Bh4 f5 Qf7 f4 e7 Na3 Kd2 f3 Qbb6 f2 Qc5 Ng2 Rb1 N1g3 Qd6 Nf5 Qh6 Ne1 Qhh7 Nd6 Rb3 Bh8 Rb4 Bde5 Ke3 Nhf6 Rb3 Bd4+ Kf4 Nb1 Kg5 Nfe8 Qh6 Bhe5 Qhh7 Nef6 Kh6 Rd8 Ba4 Nc8 Rb7 Rg8 Bb5 Rg7 Nge3 Rg3 Ng4 Rd3 Nge3 Rd1 Ng4 Rc1
2rB1K1B/N2q1R1n/1b1N3r/4np1B/7r/Q2q2B1/pNnPQr2/k6r w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 exf4 c4 g5 h4 gxh4 b4 b5 a3 Ba6 Ra2 Bc8 Rb2 Ba6 Rb3 bxc4 a4 Bb5 axb5 cxb3 Kf2 Kd7 Kf3 Kd6 Kg4 h5+ Kf5 c5 g4 a5 g5 b2 b6 h3 g6 h4 b5 a4 b7 c4 b6 Kc5 d6 Kb4 d7 a3 g7 h2 Qh5 Kb3 Qe2 Ka2 Qg4 c3 Bg2 f3 Nh3 c2 Rf1 h1R Nf2 h3 Nd1 f2 Nbc3+ Ka1 Bf3 b1N Nb5 h2 Nd6 a2 Nb2 Nc6 b8N Rh6 b7 Nf6 g8Q Ne5 Nc6 Rc8 b8B Nh7 Na7 Na3 Qh3 f6 Ke6 Qc7 d8B Qd7+ Kd5 Rh4 Qge6 Bh6 Bh5 Be3 Qeg4 Bd4 Qe2 Bb6 Rg1 f1Q Rg7 f5 Rf7 Rcc4 Qb3 Rcf4 Qb4 Rf2 Qc5 Qc7 Ke6 Qh3 Qa5 Qd3 Qc5 Qc8+ Ke7 Ng4 Nbc4 Rd1 Nb7 Rh3 Bg6 Rh6 Bh5 Rg1 Qb4 h1R Qd6 Rh4 Bb2+ Kb1 Bg7 c1R Nb2 Ka1 Bh8 Rgh1 Qc5 Rc2 Bg3 Ne5 Nd6 Rc3 Ke8 Nc2 Qa3 Qb7 Bf3 Rc8 Bh5 Nf6+ Kf8 Nh7+ Kg7 Qd7 Kg8 Nf6+ Kf8 Nh7+
nNrN3b/4PBN1/3bBKp1/1bq3p1/b1n1Q3/3B1N2/Q7/b1knbR2 w - - 0 1 legal: proof: b4 b5 f4 e5 c4 a5 a4 axb4 c5 f5 Ba3 bxa3 g3 h6 fxe5 f4 c6 dxc6 g4 c5 Ra2 c4 Rc2 Qe7 Rc3 Qd8 Rg3 Ra6 Rg2 Rf6 Rg3 Rf5 gxf5 Ba6 Rg2 Bc8 Rg5 hxg5 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 h4 Kb4 d4 c5 d5 c3 f6 c2 d6 Kb3 f7 Kb2 d7 c1B Kf5 a2 e4 a1B h5 f3 a5 b4 h6 c4 e6 f2 e5 c3 e7 b3 e8B c2 a6 Be7 f8N Qb6 e6 Qc5+ Qd5 Nf6 d8N Ng4 a7 Ne5 a8B Bd7 h7 Ba4 Bd3 f1B Ne2 Nbd7 Bf7 Bd6 e7 Nc4 Ng3 Bd2 Nh5 Be1 Nd2 c1B Nf3 Ndb6 Nd7 g6+ Kf6 Be2 Bc6 Na8 Ng7 Bcd2 Rf1 Kc1+ Qd4 b2 Bcd5 b1N Bde6 Nc3 Nb8 Nd1 Qe5 Re8 h8Q Bdc3 Qh2 Rh8 Ndc6 Rc8 Nd8 Bcb2 Qd4 Ne5 Qe4 Bbc3 Ba6 Beb5 Qa2 Nc4+ Nd4 Ncb2 Nh5 Bb3 Kg7 Be8 Bb5 Ba4 Bd3 Bcd2 Nf3 Beb5 Be8 Nc4+ Kf7 Bh8 Ng7 Bb4 Kf6 Ba5 B8f7 Bac3+ Qe5 Ba1 Qd4 Nc3 Qe4 Nd1+
k2n4/p1n1nrQn/K1p1RPQ1/4Nq2/N4B2/3Bn1Q1/4nQ1r/N3b1r1 w - - 0 1 legal: proof: b4 b5 e4 d5 h4 dxe4 a4 bxa4 c4 g5 c5 gxh4 c6 Na6 Ra3 f5 Rb3 axb3 Qf3 Bb7 cxb7 f4 b8Q c6 Qc8 Rb8 Qd1 Rb5 Qa8 f3 Qxf3 Rd5 Qd1 Rc5 Ke2 Kd7 g4 Kc7 d4 e5 f4 h5 g5 b2 g6 e3 Kd3 h3 g7 h4 f5 e2 d5 e1N+ Ke4 h2 b5 h3 Bd3 Ne7 g8Q Qc8 Qg7 Nc2 Na3 b1N Bd2 Ne3 Nc2 Na3 Qe2 Nac4 Qf2 Na5 Nf3 Nb7 Na1 Nd8 Re1 h1N d6+ Kb6 d7 h2 Qg6 Nc7 f6 Rc2 Bc1 Rh7 Bd2 Rf7 Qb7+ Kc5 b6 Ra2 Bf1 Ng3+ Kd3 h1R Kc3 e4 Bd3 Rg1 Ne5 Ne2+ Kb3 Rb2+ Ka4 Bh6 Ka5 Bg5 Qa6 Bh4 b7 Kd6 Qc4 Rc2 Qe6+ Kc5 Qeg4 Rb2 Ka4 Kb6 b8N Kb7 Ka5 Rc2 Na6 Ka8 Nc5 Ra2+ Na4 Rb2 Qfg2 Bf2 Q4g3 Rc2 Rd1 Be1 Q2f2 Nc4+ Kb4 Nc3 Qh7 e3 Qff5 e2 Be4 Nb7 Qfg6 Ra2 Bf4 Ne3 Rd6 Bd2 d8Q e1N Qhg7 Nf3 Qd7 Nd8 Ka5 Be1 Qdg4 Ng5 Bd3 Rag2 Qf2 Qf5 Re6 Nh7 Qh3 Rh2 Qhg3 Nc7d5 Ka6 Ne2 Bc4 Nf8 Bb5 Nh7 Bd3 Nc7#
bBr2NQ1/1R1pRR2/1q3n2/r3p2p/1n1k3P/Q2N3b/4qnN1/K2n2R1 w - - 0 1 legal: proof: b4 a5 a4 b5 g4 f5 Bh3 fxg4 Bg2 c5 axb5 cxb4 Be4 a4 Bb7 Na6 Bg2 Nb8 d4 e6 c4 Nc6 c5 Na7 Bd5 Nc6 Bb3 axb3 Kf1 Nb8 e4 Ra2 c6 Bc5 dxc5 Re2 Ra2 Rxe4 Ra1 Re2 f4 Ke7 h4 Kf6 c7 h5 b6 g5 f5 Ke5 c6 g3 f6 b2 f7 b3 f8N g4 b7 Qe8 Nh3 Rh2 Ke1 g2 Kd2 g1Q+ Kc3 g3 Nd2 b1N+ Kb2 g2 Nf4 Na6 b8R Qb6 Rg1 Nb4 Qf3 Bb7 c8R Nf6 c7 Kd4 Ne4 Nc3 Nf2 Ba8 N2d3 Nd1+ Kb1 b2 Rb7 Qe7 Re8 Rh1 Rf1 g1N c8Q Nh3 Ng2 Nhf2 Bf4 Rh3 Bc7 Rg3 Qd8 Rg5 Bb8 Ra5 Rg1 e5 Qh3 Qh7 Re7 Qe4 Qe8 Qe3 Qg6 Qe1 Qg8 Qe2 Ra3 Na6 Ka2 b1B+ Ka1 Ba2 Qhg3 Be6 Ra2 Nb4 Qe3+ Kc3 Qc1+ Kd4 Qa3 Bh3 Rc2 Rh7 Rc8 Rg7 Rf7 Rg4 Re8 Rg3 Ree7 Re3 Ndf4 Rc3 Nd3 Rc8
QR5K/1p3QQ1/bN2r2R/2p2rP1/1b5p/b2qq1nk/1nNb3B/2NQ4 w - - 0 1 legal: proof: h4 a5 e4 d5 c4 f5 cxd5 g5 exf5 gxh4 b4 axb4 a3 bxa3 g3 h3 Bg2 hxg2 Ke2 Kf7 Kf3 Kf6 Kf4 h5 d4 c5 d6 a2 d5 e6 g4 Qe7 d7 Nh6 d8Q Bd7 d6 Ra6 Qe8 Qh7 Ne2 g1Q Na3 Bb5 d7 Nc6 Nc2 Na5 d8Q+ Be7 f3 Nc4 Qa8 e5+ Ke4 Nb2 Bf4 Rd6 Nc1 Ba6 Bh2 Kg5 f4+ Kh4 Qf7 Re6 g5 Bf6 Kd5 e4 Qg7 Bc3 f6 e3 f7 e2 f8N e1B f5 Qg3 f6 Nf5 f7 Qe3 Nd7 Ng3 f8Q Bed2 Nb6 Kh3 Qff6 Bb4 Qff7 Re5+ Kd6 Rf5 Kd7 Rc8 Kd6 Rc6+ Kd7 Qg1 Ke8 Qe3+ Kf8 Qg6 Kg8 Re6 Kh8 h4 Rf1 Ba3 Rf4 Bab4 Rd4 Ba3 Rd8 Bab4 Rb1 a1B Rg8 Rf3 Rb8 Qgd3 Qh5 Rf5 Qhf7 Nc4 Rb2 Ba3 Rb5 Bac3 Rb4 Nb2 Rf4 Rd5 Rf6 Rf5 Rh6 Bcb4
Bqq2rKb/2r2pQR/Q4Rb1/1pN2B2/3p1b2/3RrBq1/3P1R2/1k3n2 w - - 0 1 legal: proof: b4 e5 a4 b5 axb5 Qg5 f4 exf4 b6 Qe7 b7 Nc6 b8R Nd4 b5 Qd8 b6 Nc6 b7 Nb4 Bb2 Na6 Bc3 Bc5 Bd4 Bf8 g4 g5 h4 Nb4 Bb6 cxb6 Na3 Nd5 h5 Nde7 Nb5 Ng6 hxg6 Bb4 Nc3 Bf8 Nd5 f3 Nf4 gxf4 g5 Bc5 Rh5 Bd6 Rh1 Bf8 Kf2 Ke7 e4 Ke6 c4 Ke5 c5 Kd4 e5 d5 c6 h5 c7 a5 e6 b5 e7 a4 e8B a3 g7 a2 g6 h4 Bg2 Kd3 Rh2 h3 Rh1 h2 Ne2 Nf6 g8R Ra3 g7 Nh5 Nc3 Bd6 Bc6 Bf5 c8B Ng3 Ne4 Nf1 Qa4 Bg6 Qa6 Kc2 Nc5 Re3 Bf5+ Kb2 Rc1 a1B Rc3 Qc8 Rd3 Kb1 Re8 Bf6 g8Q d4 Qg7 Bfe5 Re6 Rd8 Rf6 Bc7 Rg1 h1R Ra8 Rhh8 b8Q Rd7 Rh1 Rhd8 Rh7 Bcd6 Ra7 Re7 Ba8 Rc7 Qbb6 Qb8 Qc6 Qc8 Qe8 Qb8 Qef8 Qc8 Kg1 f2+ Kh1 Qb8 Bgf3 Qc8 Kg2 Qb8 Bfc6 f3+ Kh3 Bf4 Kg4 Bde5 Kh4 Qc8 Rb7 Ng3 Re6 f1Q Rb6 f2 Qe8 Re1 Qf6 Ra7 Nd7 Qg1 Qf8 f1Q Nc5 Bh6 Re8 Qe2 Bf3 Qeh2+ Kg4 Bg7 Kg5 Bh8 Ree6 Bd6 Re2 Nf1+ Rg2 Qe5 Kh6 Re3 Rf2 Qgg3 Rc6 Be7 Re6 Qeb8 Qe5 Rc7 Rd6 Bhf6 Re6 Bg5+ Kg7 Bf4 Kg8 Bf6 Rd6 Bh8 Qg7 Re1 Re6 Re3 Rf6 Rxf8+
N2q4/KQ3Rnp/bP5k/BpB3q1/3r1b1q/nQN1q1p1/1N3N2/1Q2b3 w - - 0 1 legal: proof: h4 d5 c4 g5 cxd5 e6 a4 a6 b4 g4 a5 Ra7 f4 Ra8 f5 exf5 b5 f4 g3 fxg3 b6 Nh6 Bh3 Rg8 Bg2 Rg5 Be4 Ng8 Bd3 Qd6 Bb5+ axb5 a6 Qf6 a7 Qd8 Ra6 bxa6 hxg5 a5 Rh2 Bd6 Rh5 Bf8 Rh1 Bg7 Rh2 Bb7 Rh4 Qf6 Nf3 Na6 Qa4 Kd8 Rh5 Ne7 Qb4 Kd7 Qc5 Rh8 Qg1 Ng8 Rh1 Bc8 Kd1 Bf8 Qf1 Ke8 Ng1 Nb4 Qf4 Na6 Qa4 Qd6 Ke1 Nb8 Qd1 Qd8 a8N c5 e4 f5 d4 Kf7 Kd2 Kg6 Kc3 a4 d6 f4 d5 c4 Kb4 f3 Ka5 g2 e5 c3 e6 a3 e7 g3 e8N f2 d7 f1Q d6 a2 Bd2 a1B Nh3 g1Q Nf2 c2 Nc3 Bh6 Qb1 Qd1 Rh2 Qf6 d8B Ne7 d7 Na6 Nd6 Nf5 Be7 c1Q d8Q Nb4 Qd7 Rd8 Nc4 Ba6 Qb7 Rd4 Nb2 Nc2 Bc5 Ng7 Rg2 Kh5 g6 Na3 Rh2+ Qh4 Rh1 Qge1 Rf1 Qe3 Be1 Ne6 g7 Bf4 g8Q Ng7 Qb3 Kh6 Qe7 Bc8 Qb7 Qcd2 Ka6 Qdh5 Ka7 Q5g5 Qf3 Ba6 Qb7 Qd8 Nd5 Qc1 Ba5 Qcd2 Nbd3 Bc3 Nb2 Bb4 Nc3 Qc1 Nce4 Be1 Nc3 Bc7 Nh1 Qeg5 Rf7 Qce3 Nf2 Bf4
7Q/p2Rr1p1/2BbQpqB/1N5q/B7/3kqB1b/q4Pr1/KR2q1qQ w - - 0 1 legal: proof: b4 d5 d4 c5 a4 cxb4 e4 dxe4 c4 b5 c5 bxa4 c6 Na6 g4 f6 g5 Kf7 g6+ Ke6 Nd2 Nc5 dxc5 Nh6 Ndf3 Nf7 gxf7 h6 Ne5 h5 Ng4 hxg4 h4 Kf5 h5 e5 c7 e3 h6 Ke4 c6 b3 h7 b2 Ne2 b1Q Nd4 e2 Kd2 g3 Kc3 g2 Nb5 g1Q Bh6 Bd6 f8Q a3 Qg8 a2 Qe6 Qe8 Rh3 Qh5 Rd3 Bd7 c8B e1Q+ Rd2 Qd3+ Kb2 Qee3 Bb7 Rae8 Rb1 Re7 Ka1 Qc2 Be2 Bc8 Qg8 Bh3 Qe6 Qgg6 Rd5 Qcd2 c7 Qe1 c8B Qeg1 Kb2 a1Q+ Kc2 Qhg5 Bd7 Q5h5 Bg4 Qa4+ Kb2 Qc2+ Ka1 Qcd2 Rc5+ Kd3 Bbc6 e4 Bf3 Qd4+ Rb2 e3 Kb1 e2 Be3 Q1g4 Nc7 Bf4 Bb7 Rc8 h8Q Ree8 Rd5 Re7 Ba4 Bg3 Rd8 Bd6 Bh6 Qe3 Nb5 Rc5 Ka1 Rg5 Qh1 e1Q+ Rb1 Qgg1 Bbc6 Rg2 Rd7 Qa2+
2N1bB2/b3b1R1/2BB1q1P/1rB3Q1/kr2R1q1/p7/qqbpK1pQ/Q7 w - - 0 1 legal: proof: b4 e5 d4 c5 a4 cxd4 f4 exf4 c4 Na6 a5 Nc7 a6 bxa6 b5 a5 b6 a4 g4 f5 Kf2 f3 Nc3 f4 Ne4 Ne7 Ke1 Nb5 cxb5 Nf5 gxf5 h6 Nf2 h5 Ng4 hxg4 e4 d5 h4 Kd7 h5 g5 b7 a5 b8Q d3 f6 f2+ Kd2 g3 h6 a3 f7 a2 e5 g2 b6 Kc6 b7 Kb5 e6 f3 e7 d4 e8Q+ Qd7 Ne2 g1B Bg2 f1Q Qh2 g4 b8B f2 Qe1 a4 Bf3 g3 Bb7 g2 Bd6 a3 Qd1 Ra5 Nf4 Be7 Qdh5+ Ka4 f8B Rb5 Nd5 Qg4 Nf4 Bd7 Rb1 a1Q Qg5 Qa2+ Rb2 Rg8 Nd5 Rh8 Qf7 Be8 Qff6 Rh7 Bc5 Rf7 Qh8 Rf4 Bc6 Re4 Rc2 Rf4 Bb2 Qfb1 Ba1 f1Q Nb6+ Kb3 Bc3 Qbb2 Nc8 Ka4 B3b4 Re4 Bd6 Qf6 Bbc5 Be3+ Ke1 Bg1+ Re2 d2+ Kd1 Be3 Rf1 Bg1 Rf3 Rf4 Re6 Bf2 Ke2 d1B+ Kd3 Re4 Rg3 Bc2+ Kd2 d3 Re5 Rb4 Re4 Be3+ Ke1 Qgf4 Rg4 d2+ Ke2 Qg6 Qhf6 Qfe5 Qf1 Qef6 Qa1 Qgf5 Rg3 Qg4+ Rf3 Qab3 Qg6 Qfc3 Bb6 Qf5 Rg3 Q3a2 Qf6 Qce5 Rg7 Qff4 Qg5 Qef6 Ba5 Ba7 Bb6 Q4f5 Bbc5 Qg4+
r2Qb2n/1r1B3k/3RpB1n/pnn4p/3N1Q2/1P1b1pb1/2R1Q1Q1/K6B w - - 0 1 legal: proof: e4 b5 h4 g5 d4 gxh4 a4 c6 d5 cxd5 axb5 dxe4 Qf3 e3 Qh5 Nf6 Qd1 Ng8 c4 d5 f4 e6 f5 Ke7 f6+ Kd7 Na3 Qe7 fxe7 Kd6 c5+ Ke5 Nc4+ dxc4 Nh3 Kf5 Ng1 Kf6 e8B Kg7 g4 h5 c6 f5 b3 a5 g5 h3 g6 h2 c7 c3 b6 c2 b7 e2 Kd2 e1N Kc3 f4 Kb2 Na6 b8Q Bd6 Qd3 Ng2 Ra2 Nh4 Bg2 Rh7 Ka1 Nc5 Qe2 Ba6 c8Q Bd3 Qd8 Nh6 Nf3 Be5+ Bb2 c1N Rg1 h1B Rd1 Kg8 g7 Ng6 Qbc7 Nh8 Nd4 Bd6 Bb7 Bc6 Qcb8 Bcb5 Bh1 f3 Qbc7 Bh2 Qf4 Bg3 Bc3 Bc6 Rc2 Na2 Bb2 Nc3 Rdd2 Nf5 Rd1 Nb5 Bd7+ Kf7 Rdd2 Kg6 g8Q+ Rg7 Bc3 Nh6 Bb4 Ne4 Be7 Nc5 Bh4 Bf5 Bf6 Bd3 Qgf8 Kh7 Qg4 Bh4 Qgg2 Bg3 Rd1 Bce4 Qd6 Bg6 Qf4 Be8 Nf5 Be4 Rd6 Bd3 Nd4 Re7 Bc8 Rc7 Bd7 Rb7
N4nQB/1kbpK2n/8/1b1p4/3n3R/1PpB1q1p/n3RpBB/1n3R1Q w - - 0 1 legal: proof: d4 a5 h4 g5 b4 gxh4 a4 e6 d5 exd5 Ba3 b5 Nc3 bxa4 Bb2 Ra6 Nb1 Rc6 Bc1 Rc3 f4 h5 e4 Rc5 e5 Rc3 f5 Rb3 Nd2 Rh6 cxb3 a3 Nc4 Rb6 Nb2 Re6 fxe6 axb2 Kf2 c5 Ke3 f5 Kf4 c4 g4 c3 g5 a4 e7 a3 b5 a2 g6 Ba6 Kg5 f4 g7 f3 b6 f2 b7 Nf6 g8R Bb5 Ne2 Na6 b8B Nc7 Be3 Nh7+ Kg6 Qc8 Nd4 Ne6 Bg2 Qc4 Bg5 Qe2 Bf6 Qf3 Rb1 a1N Bh8 Nc2 Rh3 Ba6 Nb5 Nb4 Qg1 Na2 Rf1 b1N Bd6 Qf4 Re3 Qf3 Re2 Nb4 Rg7 Na2 Rf7 Bh6 Rf4 Bg5 Rfe4 Bf4 Kf5 Nef8 Nc7+ Kf7 Rc4 Bb5 Na8 Ke8 Bb8 Kf7 e8B+ Ke7 e6 Kd8 Rd4 Kc8 e7 Kb7 Rb4 Be3+ Rf4 Bb6 Bg6 Ba5 Bd6 Bc7 Ke5 h3 Rg4 h2 Bd3 h1N e8Q Ne6 Qg8 Ng3 Qh1 h4 Ra4 h3 Rh4 Bb6 Bc7 Nef8 Kd6 Ba5 Ke7 Nf5+ Ke8 Bb6 Bh2 Nd4 Ke7 Bc7
2QBr3/2RQr2r/3bq1bR/4Nr2/rQ1K1PQ1/r3n3/2B1n1b1/n1k1r2B w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Nc3 fxe4 Nd5 b6 Nb4 axb4 a5 Na6 axb6 Nb8 Ke2 Kf7 f4 Kg6 c4 Kf5 g3 d5 c5 e5 b7 h5 c6 e3 Kd3 h3 c7 h4 b6 e4+ Kc2 b3+ Kb2 h2 Bg2 e2 Bd2 e1R Bc1 d3 Kc3 h3 Ra2 d2 Bb2 d4+ Kc4 e3 Ra6 e2 Bc6 d3 Qb1 d1R Bf6 b2 Bd5 Qe8 Bg5 Ne7 Nf3 Nd7 b8Q Nc6 b7 Bd6 Ra1 Nc5 Nd2 Qe6 Ra5 Nd4 Rb5 Ra3 Ra5 Re8 Ne4 d2 Bd8 Ncb3 Qd3 b1R Rc5 Na1 Ng5+ Kg4 Qg6 Rb5 Qa7 Rba5 b8Q R5a4+ Qb4 Bd7 Ne4+ Kf3 c8Q Ke3 g4 Re7 g5 Be8 Qg7 Bg6 Qad7 Rb1 Qg8 d1N Rc7 Rb2 Nd2 Rba2 Rg1 h1R Nf3 h2 Ne5 Ra5 Rg4 Rb5 Rh4 Re8 Qc5 Kd2 Qb4+ Kc1 Rh6 Ra4 Qgg7 Ne3+ Kc3 R2a3+ Bb3 Be4 g6 Re7 Qg8 Bf5 g7 Bg6 Ng4 Rf5 Ne5 Nb5+ Kd3+ Nc3 Kd4 Reg1 Qf8 e1R g8B Rg3 Bc2 Ne2+ Ke4 Rh3 Qg7 Rhf1 Bf7 Rff3 Qg8 h1B Qg7 Bg2 Qg8 Qf6 Bd5 Qe6 Ba8 Bf7 Qg4 Bg6 Rh8 Rhh7 Bd5 Ng1 Kd4 Re8 Bde4 Rhe7 Rh2 Rh3 Rh1 Rhh7 Rh6 Bf1 Bh1 Bh3 Qg3 Bg2 Qg4 Ne2+
2r1q3/rN1N2P1/q1R1b2K/3b1b1q/Qb4kB/N1n1nb2/1Qb1bB1B/7N w - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 a3 h5 Bh3 g6 g5 b5 Bg4 hxg4 a4 f3 axb5 Rh7 Ra6 Rh4 Rf6 Rh8 Rf5 gxf5 Be3 f4 Bd2 Rh3 Bc1 Rh8 Kf2 Ke7 h4 Ke6 e4 f5 c4 a5 c5 d5 b6 a4 g6 a3 b7 d3 b5 g3+ Ke1 d4 Kd2 a2 e5 a1Q h5 f2 g7 f1B b6 f3 h6 g2 c6 f2 c7 f4 h7 Kf5 e6 f3 e7 Be2 e8N f1B Qb3 f2 Qc2 Ra7 Qb3 Nf6 Nd6+ Kg4 Qa3 Nd5 Qa4 Bf5 c8N Nd7 b8B Nc3 b7 Nf6 Nb6 Qe8 Nh3 g1Q Nd7 Bg2 Na3 f1B Bb2 Rg8 h8Q Nfd5 Qh6 Be7 Qf6 Ne3 Bc7 Bf8 b8B Qf2 Nb7 Bd5 Bg3 Bb4 Bh4 Bde6 Be5 Bg2 Rc1 Bgd5 Bh2 Qf4 Rc2 Qa2 Bf2 Qd6 Ba1 Qde7 Qe5 Q7f7 Bh4 Qc4 Rc1 Qa6 Nf2+ Kh5 Nh1 Kg4 Ke1 d2+ Kf2 d1B Qb8 Na2 Rc6 d3 Bd4 d2 Qe5 Nc3 Qf6 Kh5 Kg3 Bdc2 Kf4 d1B Bc5 Bef3 Bb6 Bde2 Bc5 Nc4 Bcf2 Ne3 Qd4 Qee7 Qd2 Rc8 Qc1 Qee8 Qb2 Qfg8 Ke5 Kg4 Kf6 Kh3 Kg5 Qgf7 Kh6 Kg4 Bfg3 Qfg8 Be1 Qgf7 Bef2 Qh5#
rR4Bn/1Q3bk1/Qb3n2/1q1P1Q2/2nr2bB/2rRBK2/b1bN4/1r1rQ3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 Kf2 c5 d4 f5 e4 Kf7 g4 h5 d5 h3 b7 b3 g5 c3 g6+ Kg7 e5 h2 b6 c4 e6 b2 e7 b1B e8Q h4 Qb3 h3 Ra2 c2 Qe4 c3 Ba6 f3 Bd3 f4 Qe5+ Nf6 Qe2 Nc6 b8Q Qe8 b7 Bc5+ Be3 c1R Qbb2 c2 Bc4 Bb6 Qd4 Ne7 Qdd1 Rh4 Bc5 Qb5 Qee5 Be6 Rb2 Ba2 Rb4 Rb1 Qe4 c1R Bd3 Rc3 Qde1 Bf7 Qf5 Rd1 Be3 Rb1 Kf1 f2 Ke2 f1N Nf3 Nd2 Rd4 Nc4 Nd2 Rg4 Kf3 Rd1 Rf1 h1R Qd6 h2 b8B Rh4 Qdd7 Rg1 Qb7 Rhg4 Rf2 h1B+ Rg2 Rh4 Bc7 Rg4 Bd8 Rb1 Be4 Rh4 Rd3 Rg4 Kf2 f3 Rh2 Bg2 Rh8 Bh3 Rf8 Rh4 Qa6 Rf1+ Kg3 f2 Kf3 Rg1 Rh8 f1B Re8 Neg8 Be7 Nh6 Rb8 Rhg4 Qb7 Nfg8 Bh4 Nf6 Qf4 Rd1 Bf5 Rh1 Be6 Rb1 Qg5 Rd4 Qa6 Bf5 Qg4 Bh3 Qe4 Be8 Bg8 Nf7 Qf4 Nh8 Qc7+ Bf7 Qcb7 Qb3 Bef2 Kh6 g7 Qb5 Be3+ Kg6 Qf2 Rhc1 Qe1 Rd1 Bh7+ Kh5 g8Q B5g6 Qf8 Bgf5 Bg8 Kg6 Qd6 Kg7 Qe5 Rg4 Rd4 Bc2 Rd3 Rd4 Qf5 Bg4+
4q2b/1B2NQB1/3N1r2/r6Q/KN2n1bb/P3nqR1/4q1bb/1k1N1Bbn w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 fxg3 Qc2 axb4 Qb3 Nf6 Qd1 Ng8 a3 h5 Ra2 h4 Rb2 g2 Rb3 Rh7 Rf3 Rh8 Rg3 hxg3 h4 Kd7 d4 Kd6 Kd2 g5 Kc2 f5 Kb3 b5 e4 c5 h5 f4 h6 f3 h7 f2 Rh4 g4 Bd2 c4+ Kb2 c3+ Kb3 c2 Be3 c1Q Nf3 g1B Qd3 g2 Rh1 g3 Bh6 Qe8 Nc3 Qe1 Ne5 Nd7 Bc1 Nc5+ Kc2 b3+ Kb2 b4 Qe2 Be7 Qd1 Ra5 Na4 Nh6 Rh4 Rf8 h8Q Ng4 Nc3 Rb5 Qg8 Bh2 Rh6+ Rf6 Qf7 g1B Rg6 g2 Bh6 Ne3 Nd3 Bg4 Bg7 Be5 Qf3 Bgh2 Nd1 g1B Qh3 Bd8 Qh5 Qe2+ Ka1 b2+ Ka2 Na6 Kb3 b1B Ka4 b3 Nb4 b2 Rg5 Ba2 Rg6 b1Q Rg5 Be7 Rg6 Kc7 d6+ Kb6 d5 Kc5 d7 Kd4 d8N Qbd3 d6 Bd5 d7 Qf3 Nb7 Qde2 d8N Bc6 Bg2 f1N Nd6 Ng3 Bf1 Nh1 Rg5 Rf5 Rg6 Bh4 Rg5 Bf6 e5 Ba8 e6 Bfe5 e7 Rf6 Nf2 Kc3 Ndc6 Kb2 Nd1+ Kb1 Rg6 Qc8 e8B Bb7 Bd7 Qe8 Bc8 Ba8 Nd4 Bd5 Bb7 Be4 Kb3 Nc5+ Kc3 Bc8 Nf5 Qh3 Bf8 Rd6 Ne7 Bh8 Bg7 Bg2 Ndf5 Rf6 Nd6 Qhf3 Rg3 Ne4+ Kb3 Bg4 Ka4 Ra5+
1nr1R3/qb2Nr1k/4Nq1n/1Qr1nq1N/QKPr2Bn/3R4/2n5/2QQ1b2 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd3 f4 Nb1 h6 Qd1 Bd6 Be3 f2+ Kd2 f3 Bg5 Bf4+ gxf4 hxg5 f5 Kf7 Kd3 Kf8 Kd2 Ke8 a4 Kf7 c4 d5 e4 b5 h4 g4 f6 Kg6 a5 b3 a6 g3 e5 g2 f7 b4 f8Q b2 a7 b3 h5+ Kh7 h6 g5 e6 d3 Kc3 g4 e7 d2 e8N g3 Ra4 d4+ Kb4 d3 Kc3 Qf6+ Kb4 Bb7 Be2 f1B Qe1 d1R Nc3 b1N Ra5 b2 Kc5 f2 Nh3 g1N Bg4 d2 Kb4 g2 Qd6 Na3 Rd5 Nf3 Rd3 g1Q Nf4 Ne5 Nh5 b1N Neg7 Nc2+ Ka5 Rc1 Ne6 d1R Nd5 Nd2 Ne7 Ndf3 Qb6 Rd2 Qb5 Nh4 Qd1 Rb1 Rhh3 Qf5 Rd8 Rd4 Re8 Rb2 Ka4 Ra2+ Kb3 Ra5 Rd3 Qf6 Qa6 Rc5 Qb5 Bh3 Qc1 f1Q Qd1 Q1f5 Qc1 Na3 Kb4 Bf1 Qd1 Nbd7 Qc1 Rac8 a8Q Nb8 Qaa4 R8c7 Nd5 Rf7 Qcd1 Kg6 h7 Nh6 Qc1 Rhf8 h8Q Qe3 Re7 Rd8 Re8 Rdc8 Qf8 Qg1 Qd6 Kh7 Ne7 Nc2+ Kc3 Na1 Kb4 Qgf2 Qdd7 Qa2 Qad1 Qa8 Qba4 Qa7 Qdb5 Nc2+
2n5/QB4N1/KRQ1Q1Nq/bQ2n3/2P1n1b1/n2R2rb/r1r2Nq1/rrk5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Ke4 h4 Ke3 b6 f5 Kb5 a5 c4 g5 b7 d5 h5 a4 h6 f4 h7 a3 Rh3 a2 Bg2 f3 Qf1 f2 Be4 d3 Qc1+ d2 Qe1 f1N Nc3 d1N Rc1 a1R Bf3 d4 Bg2 d3 Ne4 d2 Rh4 R8a2 Rh6 Ne7 Rh2 Nf2 Rd1 Qd6 Bf3 g2 Ng3 Qh6 Bd5 Nd7 b8Q Ne4 Nh5 g3 Bb7 g4 Qc7 Ne5 Nh3 g1R Ng7 g2 Qc6 g3 Nf2 Bh3 Rb1 Rg8 h8N d1B Ng6 Nfd2 Kb6 Rh1 b5 g1Q Rb4 g2 Rb2 Ba4 Ka6 Nc8 b6 Nb1 Qa5 Bg4 Qab5 Bb4 Rb3+ Kd2 Rhh3 Kc1 Rhd3 Ba5 e3 Ned2 e4 Rh2 Qe6 Na3 Qec6 Nf7 e5 Ne4 e6 Ne5 e7 Qh1 e8Q g1R Qee6 Qg2 Ba8 Bh3 b7 Rf1 Rb2 Bd1 b8Q Bdg4 Qa7 Rf8 Rdb3 Qg3 Qbb7 Rf3 Nh1 Rc2 Rd3 Qg2 Nf2 Rg3 Qb3 Re1 Bb7 Rh1 Qba4 Re1 Rb6 Rg1 Rdb3 Kd2 Qab5 Rgb1 Rd3+ Kc1
3kq3/N1b1n1nR/1n1B1nPQ/3bRrb1/1r2Q1K1/2b4R/Q3nBQ1/4q2r w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Bh3 g5 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Nc6 Be6 Nb8 Bg4 hxg4 Kf2 d5 e4 f5 c4 a5 b4 d3 h4 g3+ Kf1 f2 Kg2 f1N Kf3 d2 g6 a4 h5 a3 e5 d4 c5 d3 h6 a2 e6 g2 b6 Be7 h7 Bb7+ c6 Ne3 b5 Nd7 Qe1 d1N Ba3 d2 Nh3 g1B Qf1 Bh2 Qg2 Ndf6 Ng5 Ra4 Bd6 Nc3 Nf7 d1N Ne5 Ncd5 c7 Rb4 c8R N1c3 Rc7 Ne2 Rae1 a1B Nc6 Bc3 Na7 Qd7 Bc5 Kd8 Bd6 Bg3 Rh3 Qe8 Bc5 Ba8 b7 Bh2 b8B Nb6+ Rb7 Bg3 Bbd6 Bh2 Kf2 f3 Bd4 f4 Rc7 Nbd5 b6 Nf5 b7 Ng7 B4c5 Nb6 b8Q+ Nc8 Qb6 Bd5 Qa6 Nb6 Qa2 Bg3+ Kf1 f2 Rb7 Nc1 Re5 Ne2 Bd4 Ne4 B4c5 Bg5 Be3 Ne7 Bd4 Rg8 h8Q Rf8 Qh6 Rf5 Be3 Nf6 Rc7 Nec8 Rf7 Ne7 Bec5 Ngh5 Rh7 Bh2 Qf3 Ng7 Kg2 f1R Bf2 Re1 Qe4 Rh1 Kf3 Nfg8 Kg4 f3 Bd4 f2 Qg2 Bhf4 B4c5 f1Q Be3 Nec8 Bf2 Qe1 e7+ Kd7 Re4 Qf8 Bdc5 Kc7 e8Q Nf6+ Kf3 Qh8 Qe5+ Kd8 Qd4 Nfh5 Kg4 Bc7 Re5 Qe8 Qde4 Ne7 Bd6 Nf6#
q2BN3/1k1b1rP1/1bb1r2q/1N1Bn2r/R1q4Q/2Q1nb2/1qQN1bQK/8 w - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 b4 exf4 Ra3 b5 axb5 cxd4 c4 Qa5 Rb3 Qd8 Rc3 dxc3 Kf2 h5 g4 d5 Kg2 Kd7 e4 Kc7 e5 a5 b6+ Kb7 e6 f5 e7 c2 e8N a4 c5 d4 b5 f3+ Kh2 h3 g5 a3 g6 h4 g7 d3 Be3 c1Q Bg5 f2 Qa4 a2 Qd4 a1B Qg4 f4 Qe2 d2 Qc4 d1B Nf3 Ne7 Nc7 Rh5 Bh6 Nd7 Nd5 Ra6 Nbd2 Ne5 Bg2 f1Q Qc3 Bd7 Bg5 Qa8 Nd4 f3 Nc7 Nd5 Ne8 f2 Bd8 Qc4 Bf3 f1R c6+ Kc8 c7 Kb7 Rg1 Qb2 Rg4 Bc5 Re4 Ne3 Rf4+ Bc6 Bd5 Bg4 Qc2 Bd7 Re4 Rf7 Rg4 Qb8 c8Q+ Ka8 b7+ Ka7 Qc7 Qa8 Qa5 Bb6 Qac3 Kb8 Kh1 h2 Rf4 Nd1 Kg2 h1B+ Kh2 h3 Rg4 Bf3 Rh4 Ra3 Rg4 Bc5 Rf4 Ka7 b6+ Ka6 b8Q Ne3 b7 Bb6 Nb5 Ra4 Kg3 h2 Qc8 h1Q b8Q+ Qb7 Qcc7 Qa8 Rh4 Qhc1 Kh2 Ra5 Qd6 Rh6 Qdb4 Re6 Q8d6 Kb7 Re4 Ree7 Qg6 Re6 Qg2 Qh1+ Kg3 Qh6 Qe7 Qbb3 Qh4 Bb2 Qb4 B2d4 Qbc3 Qb2 Kh2 Nf5 Re1 Bf2 Ra1 Ne3 Ra4 Ra6 Rb4 Ra1 Ra4 Rg1 Qgh3 Rg5 Qg2 Rh5
7b/n1RQ1BR1/K3rN1k/nrb1n1q1/1nb2Q1B/1P1bRn1n/Q7/b4Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 f5 Kd3 Kf7 Kc4 Kg6 h4 d5+ Kb3 a5 Ka4 f4 e4 d3 c4 d4 b3 f3 e5 f2 e6 d2 e7 d3 e8Q+ Kh6 c5 g5 b6 g4 Kb5 a4 c6 a3 c7 a2 b7 Be6 c8R Nd7 b8Q Bc5 h5 Ne7 Bb2 Ne5 Nf3 g1N Ne1 g2 Qb7 g3 Qbf3 N7c6 Qc2 d1N Rh2 d2 Rc7 Qg5 Qg4 Ra6 Bd4 Nb2 Nd3 d1N Qd7 Ngf3 Qf4 g1B Rh3 g2 Nb4 Nbc4 Nd5 N4a5 Bc4 f1B Nf6 Bd3 Bf2 Rg8 Rc1 a1B Bh4 Bgd4 Qa2 g1N Rc3 Rg6 Rg3 Nh3 Rg2 Ra7 Rg4 Rb7+ Ka6 Rb5 Bd5 Be2 Re3 Nc3 Rg3 Bf5 Bf7 Bfd3 Rg4 Nd5 Rg3 Nde7 Rg4 Na7 Rg3 Kg7 Rg1 Ne7c6 h6+ Kf8 h7 Kg7 Rg4 Kh6 Rg3 Bc4 Rg1 Bed3 Rg4 Rg7 h8Q+ Rh7 Qhc8 Rh8 Qdf5 Re8 Qcd7 Re6 Rg2 Be2 Qfb1 Bed3 Qf1 Ng6 Ne4 Bh8 Nf6 Nge5 Qe4 Qh5 Rg7 Qg5 Qf4 Nb4#
4qqR1/bRr2n2/2r2k2/r1b1n1b1/1q1Nn1rP/1bNQ4/1R1NQNB1/3K4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 e4 Ke7 b4 d5 c4 g5 h4 f5 b6 a5 b7 f4 c5 g2 c6 d3 b5 d2+ Ke2 a4 c7 g3 e5 d4 b6 d3+ Kf3 g4+ Ke4 a3 e6 a2 Be2 f3 Ke3 f2 Qb3 d1R Nh3 g1Q Qc3 f1Q+ Nf2 g2 Qa3+ Kf6 e7 d2 e8Q g3 Bg4 Bc5+ Kf3 Nc6 b8N Rc1 b7 d1N Qe4 Nh6 Bh3 Rh7 Qed3 Nf7 Qab3 Nc3 Rh2 Qe8 Qb6 Ne4 Qba6 Be6 c8N Bb3 Nd6 Rc2 Qac4 Ra5 Nd2 Rg7 Rb1 a1B Nb5 Nce5+ Kf4 Bb2 Nc3 Bc1 Nc6 Qh1 b8R g1R Qb5 g2 Nd4 Rg4+ Ke3 Ba7 Na2 Rc7 Nc3 Qe1+ Qe2 Rf1 Rb2 g1B Rg2 Qf8 Qd3 Qh2 Rb6+ Rc6 Ne6 Qf4+ Kd4 Rcc5 Na4 Nc4 Nb1 Qb4 Rb7 Qh2 Rg3 Rd1 Bg2 Rg7 Rg4 Bh6 Nd2 Qhb8 Rg5 Qbe8 Rg3 Bh2 Nh1 Rc1 Rg4 Bd6 Nf2 Rh7 Rg8 Rg7 Qg3 Bhf4 Kd3 Rc7 Nd4 Rg4 Qh3 Bg5 Qhe3 Ra6 Qh3 Ra1 Nc3 Rac6 Qhe3 Bdc5 Qh3 Ba2 Kc2 Nce5 Qg3 Be6 Qgd3 Ra5 Kd1 Bb3+
2r3NN/Kr2qB2/Q4qQr/1BN2q2/1q1P1kb1/n1BbR2n/n5n1/N5b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 f5 d3 h5 b6 c5 g5 a5 g6 f3 Ke3 f4+ Kd2 f2 Kc3 h3 b5 h4 b7 h2 b6 a4 g7 a3 Ra2 f3 Bg2 f1B Bh3 f2 Bd7 h3 Rc2 a2 Qf3 a1Q+ Bb2 Ra6 Rc1 Rh6 Bc6 Nd7 b8N Ne7 g8N Ng6 b7 Nb6 Rc2 Nf4 Ne2 Ng2 Na3 Qg5 Rg1 h1Q Qf7 h2 Nf4 Bg4 Re2 Qb1 Ba4 Qf6 Nc2 Bd6 Na1 Qe1+ Kc2+ c3 Kb3 Nc4 Qg7 Rc6 Na6 Na3 b8Q Bc7 Qb4 Bb6 Qb5 Re6 Qc6 c4+ Kb4 Bd4 Ka5 c2+ Rd2 c3 Re2 c1N Qh7 Ba7 Ng6+ Kd4 e5 Na2 Qc8 Kd5 Nh8 c2+ Rd2 c1R Qg6 Be3 d4 Bd3 Rf1 Qe2 Re1 f1Q Bd7 Rd6 e6 Q1f5 e7 Bf2 e8B Qee7 Re4 Qe1 Re3 h1N Bf7+ Re6 Ba4 Bg1 Qa8+ Rc6 Nc5 Nf2 Qa6 Rc8 Bd7 Qb1 Bc3 Nh3 Rc2 Qb3 Rb2 Qc4 Rb7 Qb3 Bfe8 Rd6 Bb5 Rdc6 Qb6 Qb4+ Ka6 Rd6 Ka7 Rdc6 Ncb3 Rd6 Qa6 Rb6 Rg3 Ke4 Re3+ Kf4 Bf7 Bd1 Nc5 Bf3 Ncb3 Bg4 Nc5 Rxb7+
2RKb1Qr/5Rq1/qN6/qP1Q1nB1/b2R2n1/Q3b3/1r3rqQ/1kb1B2n w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Bh3 g5 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Nc6 Be6 Nb8 Bg4 hxg4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 f5 g6 d5+ Kb3 a5 Ka4 f2 c4 f1R b6 g3 Kb5 g2 e3 f3 c5 d3 b7 f2 g7 d2 c6 Kd3 c7 a4 Kb6 f4 h5 f3 e4 a3 e5 d4 h6 a2 e6 Nd7+ Kc6 Ne5+ Kb6 Rb8 h7 Nh6 g8R Neg4 e7 Nf5 e8Q Bd7 Qe5 Be8 Qd5 Bh6 Ne2 g1B Qa4 d1N Qa3+ Kc2 Bg5 d3 Nf4 d2 Rh4 Qd7 Rb1 a1Q c8Q+ Qc3 Rf8 Qg7 Rb2+ Kc1 Rc2+ Kb1 Rf7 Qa1 Kc7 Qac3+ Kd8 Qc5 Bf6 Qa5+ Rcc7 Bg5 Ng6 Be3 Nf8 Bh2 Be7 Be5 Bg5 Bb2 Nd7 Bc1 Bf4 Rg1 Nb6 f1Q Rc2 f2 Bg5 Qfa6 b5 f1Q Rc5 Ndf2 Rcc7 Ra8 b8Q d1B Qce6 Qh3 Rc8 Nh1 Qh2 Qg2 Qg6 Rf8 h8B Ba4 Qh7 Rb8 Qg8 Rd1 Rb7 Rd2 Rf7 Qh6 Bhf6 Rb2 Bc3 Qg7 Bd2 Ngf2 Rd4 Ng4 Qgh7 Rh8 Qg8 Rb7 Be1 Rc7 Qe6 Rcc2 Qd5 Rf2
b1R4Q/1R6/P2K1NrN/1r3qb1/N1Rb4/5qk1/1r2nrNn/B3nbqQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 h4 Ke7 e4 Kd6 Ke2 Ke5 Ke3 c5 a4 f5 h5 b5 h6 g5 d6 c4 d7 f4+ Kf3 b3 d3 b4 a5 b2 h7 b3 a6 c3 Na3 b1Q Nh3 g1B Qe1 g4+ Ke2 f3+ Kf1 f2 Kg2 b2 Nf4 c2 Ne6 Nc6 Rh4 Rb8 Nc5 Nf6 Na4 Bh6 Ra2 Qa5 d8N Rf8 h8Q Qc3 Qd1 Bd2 d4+ Kf4 e5 Rb5 d5 Nb4 d6 Nd3 e6 Bd7 e7 f1B+ Kh1 Bf2 e8N g2+ Kh2 g1R Nf7 Ne1 Nc4 Bd4 Nh6 Bc6 d7 Ba8 d8R Qf3 Rc8 B2e3 Bd2 c1N Bc3 Ne2 Qc1 Bd2 Ne3 Qf5 Qa1 b1R Rb2 Rf7 Rb4 Rb2 Ng2+ Ke4 Rbc4 Bg5 R4c7 Rf8 Rb7 Rf7 Nf4 Ke3 Ng2+ Kf2 Qc1 Qg6 Qa1 g3+ Kh3 Ng4 Nf6 Nh2 Qb1 R2b3 Ba1 Rb2 Re4 Qgf5+ Rg4 Bf4 Kh4 Bg5+ Kh5 Qe5 Kg6 Rf8 Kg7 Qef5 Rh4 Rg8+ Kf7 Rg6 Ke7 Rh1 Nf4 g2 Kd6 g1Q Ng2 Kg3 Re4 Ng4 Rf4 Rh4 Re4 Nh2 Qd1 Rf4 Qb1 Bb6 Rec4 Bd4 Qe4 Q3g4 Nh4 Rf2 Qh1 Qff3 Ng2 Qgf5
2kN2nb/2nnPNKb/1q1r1n2/N1B4r/NBQr4/3QB3/5r2/br2R2r w - - 0 1 illegal: No possible last move
bb2b1Q1/3P3b/B2n1n1Q/BnN1kN2/K4Nr1/R3b1qq/1Nbr4/2B3n1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Ra3 exf4 Rb3 b6 Rb4 axb4 a5 Nf6 axb6 Ng8 e4 Kd7 d4 Ke6 Kd2 f5 Kc2 h5 g4 c5 d5+ Ke5 b7 c3 Kb3 f3 b6 h3 d6 f2 g5 h4 g6 h2 g7 c2 Qh5 c4+ Kb2 b3 Be3 c1N Bg2 f1N Nd2 c3+ Kb1 b2 Kc2 b1B+ Kd1 c2+ Ke1 h3 Bg5 f4 Nb3 f3 Nc5 Bf5 Na4 Nd2 Qh7 Nc4 Ne2 Qc7 Bf1 Na6 b8N Nf6 b7 Rg8 Nf4 Ne2 Qh6 c1B Kd1 f2 Nb2 Ng1 d7 Bd6 Be2 f1B Bd3 Ba2 Kc2 Bh7 Kc3 Bb1 Kb3 Be2 Ka4 Bh5 Be2 Be8 Bd3 Kd4 e5 Be3 e6 Ke5 e7 Bc2+ Kb5 Nc5 Na6 Ne6 Nc5 Ra2 b8B Nd4+ Kb4 Nb5 Bf1 Qc6 Bc7 Qf3 Ba5 Bb8 Bd3 Ncd6 Be2 Rf8 g8Q Qg3 Bf1 Rf7 Bd3 Rg7 Bf1 Bf7 e8N Rg6 Ng7 Be8 Nf5 Rg7 Bh4 Rg4 Bc4 Ne2 Rd1 h1Q Ra1 h2 Bg5 Ng1 Be2 Qhf3 Bf1 h1B Be2 Ra3 Bd3 Rb3+ Ka4 Qf1 Ra3 Ba8 Be4 Qfh3 Bb7 Bb1 Ba6 Rd3 Bd2 Rd5 Bc1 Rd2 Bh4 Nh5 Bd8 Nf6 Ba5 Bc2+
n6n/1b1R3q/4rr2/1Nr1RPRb/2B1q1n1/bQB3k1/3K2n1/1BQRrb2 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Nc3 fxe4 Nd5 b6 Nb4 axb4 a5 Na6 axb6 Nb8 g4 Kf7 f4 Ke6 c4 h5 b7 d5 b6 d3 f5+ Ke5 g5 e3 g6 Kf4 c5 e5 g7 d2+ Ke2 b3 c6 b2 c7 b1Q Ra6 e4 Ba3 h3 Bb4 h2 Qe1 d1R Qd2 h4 Ra7 h3 Ba5 d4 Qb2 Na6 b8Q Ne7 g8R Rh6 b7 Qd7 Qb6 Rf6 Rg2 Rc1 Rg8 Ng6 Qc5 Nh8 Rg6 Qh7 Qc3 Ba3 Qc6 Rc5 Rh6 Kg3 Rh5 Qd3+ Ke1 e2 Qb5 Qc2 Qc6 d3 Nf3 Bd7 c8B+ Nc7 Qe6 Bb5 Bc3 Qa4 Ra5 Ra6 Qa7 Na8 Qd5 Rae6 Kd2 e1N b8R Ng2 Qb3 Qb4 Rg1 h1N Nd4 h2 Bb7 Nf2 Rd8 h1B Rg5+ Ng4 Rd7 Ba6 Nb5 e3+ Kd1 e2+ Kd2 e1R Be4 Qd4 Qc7+ Qe5 Bf3 Bb7 Bd1 Ba6 Bc2 Bb7 Qc6 Qe4 Bb1 Re3 Kd1 d2 Bfd3 Re1+ Kc2 d1B+ Kd2 Bf3 Bc4 Re3 Rd1 Re1 Qb2 Be2 Qd5 Bf1 Qc1 Nh4 Qd3+ Bf3 Qdc2 Ng2 Qb3 Rc7 Nd6 Rc8 Re5 Rc5 Nb5 B3e2 Rh5 Nf2 Rh4 Bh5 Rg4+ Kh2 Rg8 Ng4 Rg5 Kg3
b3n3/q1P2N2/qQ3rQ1/1q6/k2qrr1q/B3rR2/QqKnR1NN/5Q1r w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 e4 f1R c4 d5 a4 Kd7 h4 Kc6 a5 b5 h5 g5 a6 d3 f5 d4 e5 b3 e6 f2 e7 b4 e8N b2 f6 g3 f7 g2 f8Q b3 a7 g4 c5 Kb5 h6 g3 c6 Nd7 h7 Ne5 c7 Nf6 Nf3 g1R Na3+ Ka4 Ng7 b1Q Qg8 g2 Nh2 Qb2+ Qc2 Ne8 Qe6 Rf8 h8Q Bb7 Qhh6 Rf4 Qh7 Qh4 Nf3 Bd5 Rh3 Rh1 Rg3 g1Q Ne1 Nc4+ Kd1 d2 Qhf5 Rc8 Qb6 Ba8 Ra2 Rh3 Rc3 Re3 Ne6 Rd8 Ng5 Rb8 Qbc5 Rb4 Nf3 Rfe4 Qb1 Rb6 Nh2 Rf6 Qe6 Ref3 Qg5 Qa1 Qgg4 Kb4 Qh5 b2 Qg6 Bd5 Qc2 b1Q a8Q R3f4 Qaa6 Ba8 Qg7 Qg2 Nf3 Rh1 Qgf7 f1Q Nh2 Qgg5 Qg7 Qc5 Qh7 Qa7 Rf3 Qg2 Qec6 Qgg5 Qd3 Qb5 Qg6 Qb3+ Rc2 Q3a4 Qab6 Q4a6 Qf1 Ka4 Qd5 Qc3 Rb2 Qcb4 Ng2 Re3 Kc2 d1Q+ Kb1 d3 Qdg8 Ree4 Q8f7 d2 Qfg8 Na5 Nc4 Nb3 Nd6 Qde2 Qc4 d1R Nf7 Rd3 Qce6 Qd1 Re2 Rde3 Qc4 Qd2 Ba3 Qd4 Kc2 Nd2 Qa2 Qbb2+
Rr2rQBK/4rQ2/2nPn2n/3qk1BQ/1n1Nq3/1nr5/1Qn5/qb2N1N1 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 f5 b5 e5 b6 exf4 g3 f3 Qb3 f4 Kd1 f2 Kc2 axb6 Kb2 b5 Qd1 b4 Kc2 Qd3+ Kb2 Qd7 Kc2 Qd8 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4 gxf4 hxg4 e4 Kf7 d4 Ke6 h4 c5 a5 b5 a6 g5 a7 g3 h5 g2 e5 g4 h6 b3+ Kc3 b4+ Kb2 c3+ Ka1 g3 h7 c4 Qe2 c2 Kb2 c3+ Ka1 b2+ Ka2 b3+ Ka3 Nc6 Qc4+ Qd5 Nd2 Rb8 a8N b1Q Nc7+ Kf5 e6 b2 e7 Qa1+ Qa2 b1Q e8Q Nh6 Bc4 f1R Nb5 f2 Ndf3 Re1 Qh5+ Ke4 f5 f1N f6 Bf5 f7 Ne3 Rh2 Rhe8 f8Q Bg6 Bd2 c1N h8Q c2 Qhf6 Bh7 Q6f7 Nd3 Bc1 Re2 Ne1 Ndb4 Bd2 c1N Ka4 Qc3 Qb2 Nec2 Bg5 Qe3 Bb3 Qa1+ Ba2 Nb3 Rh1 Qd6 d5 Bg6 Nd4 Ke5 Rh4 Qe4 Rf4 Qe6 d6 Q6d5 Rf3 Bh7 Rc3 Bf5 Rc5 Re3 Ra5 Rc3 Ra8 Ne3 Nh3 g1N Ka3 Ne2 Ng1 g2 Ka4 Nf4 Ka3 Rbc8 Ka4 Qe6 Kb5 Nec2 Kb6 Rb8+ Kc7 Nd2 Bb3 Q6d5 Bc4 Ne6+ Kd7 Rec8 Bh4 Nb3 Bg5 Ned8+ Ke8 Rc7 Q8g8 Re7+ Kf8 Bh7 Kg7 Ne6+ Kh8 Ree8 Nge2 g1R Qgf8 Rf1 Ng1 Rff3 Q7g8 Rf7 Qgg6 Rfb7 Qf7 Rbe7 Ba6 Nf4 Bc8 Ne3 Qfg6 Qh1 Qgg8 Bb1 Be6 Nec2 Qh7 Qhf3 Bg8 Qfe4 Q7f7 Ne6
6b1/1nb1BB2/k1nb2r1/5b2/1B1P1b1B/nK1r4/rR3Rn1/Q1N1bQnR w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 f5 Nc3 f4 Ne4 Qd7 Neg5 Qf5 gxf5 h6 Ng1 hxg5 Bb2 g4 Ba3 Ra7 Bc1 Ra8 a4 Kd8 d4 b5 Kd2 g5 Kc2 c5 e4 Kc7 h4 Kb7 e5 g3 e6 b3+ Kc3 g2 a5 b4+ Kb2 f2 h5 g4 f6 f3 f7 g3 h6 c3+ Kb1 c2+ Kb2 c4 e7 Ka6 e8R Ne7 h7 Nd7 Rh4 Rg8 h8B Nc6 Ne2 g1N Ra4 g2 Rh2 c3+ Ka1 b2+ Ka2 b1N Qd2 b3+ Ka1 b2+ Ka2 Nc5 Bg7 Nb7 Rh8 Bf5 Qg5 Na3 Re6 b1B+ Kb3 Bd6 Bf8 Rg6 Rb4 Bc7 Bf4 c1B Rf6 c2 Bg3 B1f4 Be7 c1B f8B Bcd2 Bh4 Be1 Nc1+ Bbd3 Be2 f1N Rh7 f2 Bh5 Bfd6 Qf4 Ne3 Rff7 f1R Qf3 Ka7 a6 Bde4 Qe2 Rf3 Qf1 Bd3 Rh8 Bb5 Rf6 Kb6 a7 Ka6 Rh6 Bbd3 Rb5 Bf4 Bb4 Bde4 Bfe7 Bd5+ Qc4 Bg8 Rf7 Nh3 Qf1 g1B Rh8 Bgh2 Rh7 Re6 Rf6 Ng1 Bf7 Bd3 Rhh5 Ng2 Rhh6 Rg3 Rhh5 Bfd6 Rf2 Rgg6 Rh8 Bf5 Rh7 Bhf4 Rh8 Rf8 Rh7 Re2 a8Q+ Na7 Rh6 Ra2 Rh5 Re8 Rc5+ Nc4 Bg3 Rd2 Bf8 Ree2 Be7 Kb6 Rh1 Nc6 Qa1 Na3 Bgh4 Ka6 Rc3 Rd1 Rd3 Ra2 Rdd2+ Kb6 Rde2 Ka6 Rb2+ Rd3+
3nk3/2b1rq1Q/q2bN2n/b7/4q2K/qn1BQPB1/1Qn2b2/RNQB1b2 w - - 0 1 legal: proof: a4 a5 d4 c5 g4 cxd4 b4 axb4 Ra3 b5 Re3 h5 Re6 hxg4 f3 Ra6 Re5 Rf6 e3 Rf4 exf4 f5 Re4 fxe4 Kf2 d5 Kg3 g5 h4 e5 c4 d3 a5 d2 h5 d4 a6 b3 c5 b4 a7 b2 a8B e3 h6 d3 h7 e2 f5 e1B+ Kg2 b3 c6 e4 f6 e3 c7 e2 Nc3 b1N Qc2 d1Q Bb7 g3 Qb2 g4 Rh6 d2 Rh5 Qd6 Rc5 Nh6 Bd5 Nc6 Nh3 Ba6 c8Q+ Nd8 Qa2 b2 Qa3 Qb3 Be4 d1Q Bd5 Qd3 Qa1 Nd2 Bc4 b1Q Ra5 Qda3 Nf4 Bd6 Ne6 Qg6 Qb2 Qbe4 Ra4 Qb6 Ra5 Qf7 Nb1 Nb3 Bd3 Bb5 Qcc2 Qa6 Bf4 Rf8 Ra4 Ba5 h8Q Bdc7 Qh7 e1N+ Kh1 g2+ Kh2 g1B+ Kg3 Bc4 Kh4 g3 Bfe2 g2 Bd1 Bc5 Qcc1 g1B Qe3 B5d6 Qec1 Qec6 Bg3 Nc2 Qe3 Bf2 Qbc1 Qb2 Ra1 Qa3 Qb2 Rg8 Qbc1 Rg7 Qb2 Qg6 Qec1 Re7 f7+ Kd7 f8Q Qce4+ Qff4 Ke8 Qe3 Qf7 Qec1 Qeb7 Qfe3 Bb5 Bg6 Bf1 Bd3 Qe4+
1q3N2/2k1NNB1/Q1B1r1RK/r2r4/4Q1b1/Q1rnqq1b/4Ppr1/n1b2N2 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 f5 c4 g5 h4 d5 c5 Kd7 h5 a5 h6 a4 c6+ Kc7 h7 d3 Ke3 g4 Kf4 a3 Rh6 a2 Rg6 a1Q Re6 d2 Nh3 g1Q Ba3 d4 Rf6 g2 Kg5 d3 Bb2 g3 Kg6 f4 Ng5 f3 Kh5 Qe3 Rh6 g1R Qe1 d1R Bg2 d2 Bg7 f2 Be4 g2 Bd5 Qaf6 Nf7 Ra5 Rg6 Na6 Be4 Nc5 b6+ Kb8 b7 Nh6 b5 Nf5 Bf3 Kc7 b8N Nd3 Nd7 Ba3 Nf8 Nd4 Qf1 Rg8 h8Q Bc1 Qh6 Nc2 Qf4+ Qdd6 Kh6 Bh3 Qe1 Na1 b6+ Kb8 b7 Kc7 b8N Qde5 Nh7 Re8 Nf8 Re6 Bd5 Rf1 Be4 g1R Bf3 Kc8 c7 Rg2 Nc6 Qb2 Bd5 Qb8 Be4 Kb7 c8Q+ Kb6 Ne7 Rh1 Qg5 Qff3 Qa6+ Kc7 Bc6 Rhg1 Qf1 Rg3 Qe1 R1g2 Qh1 Rf1 Bc3 d1B Nd2 Ba4 Bg7 Rd1 Nf1 Bg4 Qh4 Bb3 Qh1 Bd5 Qh3 Be4 Qh1 Bef5 Qh4 Bh3 Qd4 Bfg4 Qe4 Nf4 Qc5 Rd5 Qcb4 Nd3+ Kh7 Qef4 Nh2 Nc5 Nd6 Qb3 Qa3 Q3b6 Nf7 Rc3 Nf1 Nd3 Nh8 Qf3 Nf7 Nf4 Kh6 Qd4 Qad3 Qde3 Qa6 Nd3+
1qK1bbb1/R6b/1BR1Nrrr/R1b1N3/1Q1n4/2P3k1/p1nR2N1/1n3Q1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 a5 h4 d5+ Kb3 g5 Ka4 f5 e4 g4 b6 d3 Kb5 f4 h5 f3 b7 d4 c3 d2 h6 Kf4 e5 d3 e6 f2 e7 f1N e8N a4 h7 a3 Nc7 a2 Kb6 Bf5 b5 Nh6 Nf3 g1B+ Nd4 g2 Rh4 Na6 b8R Nb4 Kb7 Kg3 b6 Qd6 Nc6 Ra6 Qe2 d1B Rc8 d2 Ne6 Bb3 Ne5 d1B Rc6 Nd2 Qf1 Bc5 Na3 g1Q Kc8 Nb1 b7 Qh1 b8Q Nc2 Be3 Be4 Qbb5 Nf5 Qb4 Nfd4 Rh5 Bg6 Nac4 Be8 Rf5 Be2 Bg1 Bd3 Ne3 Rb6 Ng2 Be4 Nef4 Bg8 Rg5 Rb7 Be3 Rf7 Ne6 Rf6 Rg7 Kh3 Ra7 g3 Ne1+ g2 Bg1 Nba3 Rd1 Nb1 Rd2 Kg3 Be3 g1R Ra5 Rg2 Ra7 Rh2 Ng2 Rhh6 Ra5 Bgf7 Ra7 Rg8 h8R Rgg6 Ra5 Bg8 Rh7 Rg5 Rha7 Beh7 Bg1 Rgg6 Nd7 Nb5 Ne5 Bb6 Bc5 Nbd4 Re7 Bc7 Ba7 Bb6 Rb7 Bc5 Bb6 Be7 Rd7 Bf8 Rda7 Qb8+
5RBr/nbn1kNq1/1QB2n2/2rRq1B1/3n2n1/p7/KR2P2b/bR1Q2q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 d5 h4 a5 b4 g5 c4 f5 Kc2 a4 Kb1 f4 b6 g4 b5 d3 c5 f3 b7 f2 c6 a3 b6 d4 h5 d2 c7 d3 h6 Qd6 h7 Ke7 Rh4 Nf6 Rh2 Na6 b8R Bg7 b7 Qe5 Qe1 d1Q Rh4 d2 Nh3 g1Q Bg2 f1N Ra2 Ne3 Bc6 g2 Bf3 g3 Ra1 Neg4 Rh5 Qa7 Qh1 g1B Ng5 g2 Ka2 Bh2 Nf7 g1N Bc6 Nf3 Rb1 Qdg1 Rb2 d1N Bg5 Nd4 Rb1 Bf5 c8B Be4 Be6 Nc7 Rb2 Rc8 h8R Bg2 Rb1 Bf3 Rf8 Nc3+ Ka1 N3b5 Ka2 Qg2 Qd1 Qg1 Rd8 Bh1 Rd5 Rh8 Rf8 Rc8 b8Q Qb7 Qa7 Bg2 Qb6 Na7 Rdb5 Bh1 Bcd7 Qbg2 R5b2 Qgg3 Bb5 Bb7 Bd5 Na6 Be6 Rc5 Bc6 Nc7 Bf5 Qd3 Bh7 Qg6 Bg8 Bh6 Bd2 Qg7 Bc1 Bd2 Rf5 Bc3 Bg5 Qf4 Rd5 Qe5 Rb5 Ba1 R5b4 Ba6 R4b2 Bb7
n2Kn3/r2N1bQ1/1B1R2r1/Rn4b1/Q1q2R1p/6PN/b2rQr2/3q1Qrk w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 b4 a6 h4 gxh4 e3 Bg7 b6 Bb7 b5 Bc8 b7 Bh6 b6 Bf8 Bb5 axb5 Kd2 h3 Kd3 Ke7 Ke4 Kf6 Kd5 Kf5 c4 h5 c5 h2 g3 h4 c6 b4 c7 b3 Ra6 f3 e4+ Kg4 e5 f5 e6 d3 e7 f4 Kd6 d2 Qc2 d1N Qg2 f2 Nh3 f1R Ra1 f3 Qd2 b2 Qc2 f2 Ra5 Kf3 Rc5 Kg2 Qb3 Nf6 Qb5 Rh6 Bd2 Ra7 Qe2 Na6 b8Q Nc3 b7 Rg6 Qd3 Bh6 e8Q Bg5 Na3 b1B Be3 Ba2 Ra5 Rd1 Re1 f1R Nc4 h1R Nb6 Rhg1 Bc5 Kh2 Re4 Kh1 Rf4 Rf2 Qg8 Qe8 Qg7 Qg8 Ke7 d5 Qf1 Be6 c8R d4 Nd7 d3 Rc6 d2 Qe5 Nc7 b8Q Na8 Qb3 Nb5 Qa4 Beb3 Qee2 Ne8+ Rcf6 Qd5 Be3 Qc6 Bb6 Bf7 Kd8 Qc4 Qe6 Rc1 Qee1 d1Q Qe5 Rcc2 Qee2 Bh6 Re6 Rd2 Rd6 Bg5+
rb2rR2/B1QK1nbk/1Q6/5Nq1/rP2q3/3r1QR1/qN2p1n1/1N1Qb2r w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 f4 hxg4 e4 b5 f5 bxa4 Bc4 Ba6 Ba2 Bd3 Be6 fxe6 f6 e5 Nd2 Bc4 Nb1 Be6 Nd2 Bf5 exf5 e4 Nb1 Rh4 Ra2 Rh5 Ra1 Rh8 Kf2 Kf7 Kg3 d5 Kf4 g5+ Ke5 a5 b4 g3 h4 e3 c4 e2 c5 e1B c6 d3 c7 a3 c8Q d4 h5 g2 h6 a4 h7 a2 Rh4 g4 Bb2 g3 Qc5 d2 Qa5 d3 Qb6 a3 Qb3+ Qd5+ Kf4 d1R Kg5 e5 Nh3 g1B Nc3 e4 Qc5 g2 Nf2 d2 Rh3 e3 Qb6 e2 Nb1 Ne7 Bd4 Nbc6 Rg3 Bg7 Nd3 Ng6 Nb2 Rhe8 h8Q Nh4 Qh7 Nd8 Qd3 Kf8 f7 Qe4 Qc2 Rc1 Qd1 Bh2 Bf2 g1Q Be3 Ke7 f8N Kf7 f6 Ng2 Ne6 Rc3 Bf2 Rd3 Nd4 Kf8 Nf5 Nf7+ Kg6 Ra4 Rg4 Bc7 Rg3 Bb8 Qh2 Kg8 Be3 Nh6 f7+ Kh8 Kg5 Kh7 f8Q Ra8 Qf7 Ra4 Qh3 Ra8 Qfc7 Ra4 Qb3 d1R Qg4 Rc1 Qf3 Ra8 Qd1 Ra4 Nc3 Ra8 Rb1 a1Q Bf2 Qa2 Ra1 Kg8 Nb1 Nf7+ Kg6 Rc5 Bd4 Rca5 Bc5 Ra4 Bf2 Bh6 Kf6+ Kh7 Nc3 Qec4 Qc1 Qe4 Qh5 Qac4 Rh3 a2 Qa6 Nf4 Ba7 Bf2 Ne7 Rd4 Qab6 Nh8 Qe1 Qgg8 Rg3 Rd3 Qd2 Qb3 Rf1 a1R Qg4 Rc1 Nb1 Qa2 Qdc2 Re1 Qd1 Ng2 Qgf4 Bg1 Rff3 Bf2 Qg4 Qgd5 Rf4 Qd8 Qf3 Rh1 Rf5 Be1 Rf4 Qc6+ Ke5 Qb7 Rf8 Nf7+ Kf6 Bg7+ Kf5 Rb3 Ke6 Qd2 Qa5 Qc1 Kd7 Qe4 Nf5 Qg5 Qab6 Rd3+
2R1NRq1/2Q1r3/1qn2R1K/1q2Q1r1/1p2B2P/nbb2QN1/2rnn3/R2nk3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Bb2 exf5 Bf6 f4 Bh4 Qd7 Bf2 Qd8 Bg3 fxg3 e4 Ke7 Ke2 Kd6 Ke3 Ke5 a4 b5 h4 g5 a5 f5 d6 c5 a6 g2 a7 g3 d7 c4 d3 b3 Qe2 b4 Rh3 g4 Rh1 f4+ Kd2 Kd4 e5 b2 e6 c3+ Kd1 f3 e7 f2 e8Q c2+ Kd2 c1N Na3 b1N+ Kc2 Nb3 Qe1 N3d2 Nh3 g1Q Q1e2 g2 Ng5 g3 Qf3 Qb6 Ne4 Bg7 Nc4 Nh6 Ncd6 Nf5 d8Q Be6 Qc7 Na3+ Kd1 Ba2 Ke2 Ne3 Qee7 Rg8 Ne8 Nc6 Qg5 Rc8 a8R Nd1 Qgf4 Rd8 Rc8 Rd7 Rh3 Re7 Rh2 Kd5 d4 Kc4 d5 Bc3 d6 Rg5 d7 Kb3 d8R Kc2 Rd6 Bg8 Rf6 Bb3 Ra2+ Kc1 Kd3 Rc5 Qfe5 Rc4 Be2 f1Q Rh3 Qb5 Rh1 Qgb6 Rf8 Qff2 Rf1 g1N Rf6 g2 Ng3 Qb8 Rf8 Qfb6 Ra1+ Nab1 Rf2 Qa8 Bf1 Ne2 Rf6 g1R Bg2 Ne3 Rf8 Kd1 Rf6 Ke1 Rf8 Ndf1 Rf6 Rc5+ Ke4 Nd1 Kf5 Nfd2 Kg6 Na3 Kh6 Rc4 Bh3 Rg2 Bf5 Rg4 Be4 Rg5 Rf8 Rh2 Qd3 Qab8 R2f6 Qa8 Rd8 Qc8 Qf3 Qe6 Ra8 Qg8 Rc8 Ndc4 Rb8 Ng1 Qb7 Rc2 Qbc7 Nd2 Rc8 Ne2
n7/n1qr3b/3NB1q1/5b2/P1q1rk1N/bR1Qb3/Q1BQp1Q1/bKn2N2 w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 g5 a4 f5 e4 Qd7 g4 fxe4 f5 h6 Ra3 Qb5 Rf3 Qd7 Rf4 Qd6 Bb2 Qd8 Bf6 gxf4 g5 Bd7 g6 Bc8 Bg5 hxg5 h4 Kd7 d4 Kd6 Kd2 e5 Kc2 c5 g7 b5 h5 c4 f6 b3+ Kb2 e3 h6 f3 f7 b4 h7 f2 Qd2 e4 Qc3 g4 Rh2 g3 Rh4 g2 Rh5 Na6 Nd2 Nc7 Rg5 Ra7 Nb1 Na8 Kc1 b2+ Kc2 Ne7 g8B Nc6 Qa3 c3 Be2 f1Q Nf3 g1B Bd1 Qc4 Nh4 e2 Nd2 e1B Qa2 e3 Rg3 b1B+ Kc1 b3 Nf1 Be7 f8Q c2 Qf3 e2 Qg2 Bc3 Bf7 Re8 h8N Rc7 Bg8 Ba1 Nf7+ Kd7 d6 Ke6 d7 Na7 d5+ Kf6 d6 b2+ Kd2 c1N Rh3 Rb7 Rb3 Qb6 d8Q Bh7 d7 b1Q Rb4 Qbc6 Rb3 Qg6 Qa5 Q6c5 d8Q Bf5 Qd3 Rd7 Qc3+ Bd4 Kc2 Qc7 Kb1 Ba3 Bc2 Re4 Qcd2 Be3 Nd6 Ke5 Be6 Kf4
1NR1Q2r/2N2R2/1Nn5/3N2n1/P1b3KQ/n1qr3B/Qpr2b1b/2bkq1b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Bb2 exf5 Bf6 f4 Bh4 Qd7 Bf2 Qd8 Bg3 fxg3 e4 Ke7 Ke2 Kd6 d4 b5 h4 c5 a4 g5 h5 f5 h6 b3 h7 g2 Qd3 b2 Nf3 g1R Nfd2 g3 Kf3 g2 Rh6+ Nf6 Na3 b1N Kg3 c4 Kf3 b4 Ra2 b3 Rh5 g4+ Kg3 c3 Qe3 f4+ Kh4 g3 Nc2 f3 Qe2 f2 Nb4 c2 Rf5 c1B Rc2 Be6 Rc8 Qc7 Qc4 b2 Qa2 Na3 e5+ Kd7 d6 Nc6 d5 Ne4 Kh5 Ng5 Nc4 Ra5 Kh4 Rc5 Kg4 Bf7 Rf3 Rh1 Rf6 g1B Bh3 f1Q Rf2 g2 Rf3 Rg8 h8Q Bf2 Qh4 g1B Rf6 Bg7 Rf5 Rd8 e6+ Ke8 e7 Kd7 e8N Be5 Rf3 Qe1 Rf4 Qa5 Nc7 Bg8 Rf3 Beh2 Rf7+ Qe7 Ne3 Rc2 Nc4 Qc5 Rf4 Qce3 Rf7 Qc3 Rg7 Na7 Bf1 Bhf4 Qg3 Rh8 Qh4 Re2 Bh3 Bfh2 Rh7 Rd2 Rg7 Bh7 Rf7 Bd3 Nca6 Nc6 Nb8+ Ke8 Nb6 Bc4 Rg7 Qe1 d7+ Kf8 Rf7+ Kg8 d6 Rc2 Rf4 Kg7 Rf6 Rde8 d8N Re3 d7 Rd3 Rf7+ Kg6 Ne6 Rf8 d8Q Rh8 Re7 Kf6 Qg8 Ke5 Nc7+ Kd4 Rf7 Ke3 N4d5+ Kd2 Qe8 Kd1
4N3/2r2Q2/NB4q1/KP1n2b1/rn2QN2/2Nq3b/pq1B1bbn/R2Bbk2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 Ke4 b6 f5 b5 a5 b7 d5 e3 g5 h5 f3 c5 f4 c6 g3 c7 g4 h6 g2 h7 d3 Kc3 g3 Ba3 d4+ Kc4 a4 Bd6 d2 Kb4 f2 Be7 f3 Nh3 g1B Ra3 d3 Qc2 d1Q Qc5 g2 Rb3 d2 Rh2 a3 Rd3 a2 Bg5 Be7 Bf6 Ra3 Rd7 Qe2 Bg5 d1Q Rh1 Qe8 Nf4 Qg6 Rd6 Qdc2 Qa7 Qed3 Be2 f1B Bd1 Bh3 c8Q f2 Qe8 Nf6 Qf7 Rg8 h8B Rc8 Qa4 Na6+ Ka5+ Nb4 b8N Qb2 Na6 Nd5 Bd4 Rc7 Bb6 Bd8 Bh6 Bg5 Rd8 Bh2 Ra8 g1B Ra7 Bfg2 Nc3+ Ke5 e4 f1N Ra8 Bg3 Ra7 Bc5 Ra8 Kd4 e5 Ke3 e6 Kf2 e7 Nh2 e8N Qdd2 Bg4 Qdd3 Ra1 Be3 Bd1 Kf1 Ra7 Be1 Ra8 Rb3 Ra7 B3f2 Ra8 Nc2 Qe4 Ncb4 Rd8 Ne3 Rd4 Ned5 Rc4 Nc2 Rb4 Ra3+ Ra4 Ncb4 Nfe2 Bh4 Bd2 Bg5 Nf4 Rxa4+
nb2qRQK/qbqb1R2/2QQQ2n/Np4Rn/4B3/5BPn/3r4/k2rn3 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 g3 Nc3 exf6 Nb1 f5 Qb3 f4 Qa4+ Nc6 Qd1 Nb8 Bb2 h5 Bd4 h4 Bf2 Rh5 Qc1 gxf2+ Kd1 Nh6 Qc2 Ng8 Kc1 Rh6 Qd1 Rh8 Nc3 Qd7 Ne4 Qd8 Ng3 Ra6 Nf5 Ra8 g3 h3 Ne3 Qd6 Ng2 hxg2 Qc2 Qd7 Qd1 Qd8 Kb2 Kd7 h4 Kd6 a4 Kc5 d4+ Kc4 a5 c5 d6 f5 d7 b5 h5 b3 h6 f3 d5 f4 a6 Qc7 d8Q Nd7 h7 Bb7 d6 Nh6 a7 Nf6 d7 Nh5 Rh3 Bd6 Qf8 Rd8 Kb1 Kc3 a8B b2 e4 c4 Bd3 f1Q e5 f2 e6 f3 e7 Qe1 e8Q f1Q Qf5 f2 Nf3 Qg1 Nd4 f1B Nc6 Qa7 Na5 g1N Be4 Bf4 Rh4 Bh3 Qfe6 Bd6 Ka2 b1N Rg4 Na3 Rg5 Rf8 h8R Rf1 Q8g6 Bf5 Bf3 Nh3 Rf8 Qee3 Qdd5 Rd1 Qc6 Bf4 Qeg8 Qe8 Qg6e6 Kc2 Rb1 c3 Rf7 Rd2 Rf1 Nc4 Rf2 Kc1+ Kb3 c2 Kc3 Kb1 Rf8 c1N Rf7 Rc8 d8Q Nb6 Qdd6 Nd3 Kd4 Rd8 Rf8 Bg4 Rf1+ Ne1+ Ke4 Be3 Ke5 Ka1 Be4 Rd1 R1f7 Bf2 Qe7 Bd7 Qe6 N5f4 Kf6 Nh5+ Kg6 Be3 Kh7 Bf4 Qde7 Bdc8 Qb4 R8d2 Kh8 Bd7 Qbc5 Qcc8 Bf3 Bb8 Q5d6 Qc7 Qc2 Bbc8 Bae4 Na8 Qcc6 Bb7
B2B1QQN/Rr5b/2n2Q1p/K1n2Rq1/2R1rr1q/2qP2r1/1k3bn1/R4r2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 g4 Ke7 e4 Kd6 b7 Ke5 d3 Kd4 Kd2 c5 b6 f5 e5 b3 g5 h6 e6 h3 g6 b2 g7 b1R e7 h2 e8R f3 Re1 c3+ Kc2 f4 Re3 c4 Ra5 f2 Ra4 f3 Re7 Nf6 g8Q Na6 b8R Nh5 b7 Bf5 Re3 Nf4 Nh3 Nc5 Bb2 Qg5 Rc8 Ng2 b8Q Bh7 Bc1 Rb7 Qf7 Rg8 Rg1 h1Q Be2 f1R Ra5 f2 Nf4 Qhh4 Rf3 Re1 Ra6 f1R Ng6 Raa7 Ra3 Ra4 Rf5 Rab4 Bf3 Re4 Ra7 Bd6 Ra1 Bg3 Ra7 Bf2 Nh8 Rg6 Bd2 Ra4 Qg8 Rf4 Kc1 c2 Ba5 Rab4 Kd2 c1N Rc7 Na2 Qbf8 c3+ Kc2 Rc4 Qa1 Ra4 Re7 Rc4 Bd8 Rcb4 Re1 Rc4 Rc1 Nb4+ Kb1 Re4 Qa6 c2+ Kb2 Rf4 Ka3 Kc3 Ra1 Rce4 Qc6 Ne3 Rg4 Ng2 Qa6 Ne6 Ka4 c1Q Qad6 Nc5+ Ka5 Kb2 Qe5+ Qc3 Qef6 Re3 Be4 Rgg7 Bc6 Rg3 Bf3 Rge7 Bc6 Ree4 Bd5 Rbe7 Ba8 Rb7 Qe5 Ree3 Qgf7 Rff3 Rc4 Rf4 Q7g8 Ree4 Qef6 Nc6#
1Qb2N1K/1b6/1p1nB3/k1N3rr/n1r2r2/2n2q1P/1QB1r2B/Q1Q2qRq w - - 0 1 illegal: No possible last move, all moves rejected
1rk2rBQ/1pq2P1Q/3R4/4Br2/1q1q1n2/RQ1nKN2/qqR5/nb1Q1b2 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e3 axb4 Nc3 e6 Ne4 fxe4 g5 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Bg2 g4 Bh3 Qg5 Bf1 Qd8 Kd2 d5 h4 Kd7 a4 g5 c4 g3 f6 e5 h5 b3 f7 g4 f8Q b2 h6 b1B h7 e3+ Ke2 d3+ Ke1 g2 f5 e2 Kf2 e1N f6 d4 a5 e4 a6 d2 a7 d3 c5 g3+ Ke3 Nc2+ Kf4 e3 f7 e2 Qe1 d1R Bd2 Na6 Rh4 Nf6 Ba5 d2 Bb6 Nab4 Rg4 Rb8 Qh6 Rf8 a8Q Nfd5+ Kf3 Qe7 Ra2 Na1 h8Q Rc1 Qa7 d1Q Bc7 Qc2 Qab6 Qc4 Ra4 Qa2 Ra3 Qf6+ Bf4 Qfb2 Rg6 Rc4 Qd1 e1Q Bd6 Rg4 Q6g7 Rg5 Bd3 Nf4 Be5 Qec3 Rh6 Qcc2 Be4+ Nbd3 Qb3 Kd8 c6 Bh3 Bh7 Rf5 c7+ Kd7 Ne2 g1Q c8R g2 Nd4 Qe1 Bg8 g1Q Qgh7 Bf1 Rg6 Qb4 Rd6+ Ke7 Ke4 Qcc5 Kf3 Qca5 Rc2 Qc7 Rf6 Kd7 Rd6+ Kc8 Ke4 Q4c3 Nf3 Qf2 Qc4 Qfc5 Qb3 Q5b4+ Ke3 Qcd4+
3NNNb1/rnr1bQq1/1rRR4/1N3p2/k4r2/1n2rB1R/1rb1P3/2rQ1K2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 h4 d5 c4 Kd7 b4 g5 c5 f5 b6 Kc6 h5 Kb5 h6 a5 b7 d3 c6 a4 c7 g2 h7 d4 Qc1 d2+ Kf2 d1B Qd2 a3 Rh3 a2 Ra3 d3 Nh3 g1R Ke1 g3 Qf4 g4 Rb3 g2 Qd4 g3 Nf2 Nh6 Rc3 Ra7 Qg4 Nf7 Qe4 Na6 b8Q+ Ka4 b5+ Qd4 b6 Nc5 b7 Nd6 Qd5 Qg7 Ne4 Be7 Qe6 Nb3 Qf7 Bc2 Nf6 Be6 c8R Re8 h8N Ra6 Na3 Rb6 Rb1 a1R Rd1 Rh1 R8c5 g1R Qd8 g2 b8N Rh4 Nbd7 Rf4 Nf8 Nb7 Nb5 Rb1 Qd7 Rb2 Rc6 Rc8 Qd5 Rc7 Ne8 Rh1 Qd6 g1R Qd8 Rhh4 Qd7 Rgg4 Bg2 Rh7 Bf3 d2+ Kf1 Re4 Rd3 Rgf4 Rdd6 Bd5 Rh6 Bc4 Rh3 Re3 Rch6 Bh4 Rc6 N7c5 Qg8 Ra7 Nfg6 Nb7 Nf8 Qg4 Qd4 Rc7 Nf7 Be7 Nd8 Qg6 Qd6 Be6 Qg7 Bg8 Qf7 Qg4 Re1 d1R Qd7 Rc1 Rd1 Bb4 Qd2 Bd6 Qe1 Be7 Rdd6 Qg3 Qd1 Qg7
2qN2Bb/1bBPnb1K/1N2Bn2/2R5/b1b2rr1/1p1QN3/1kbQ3B/r5b1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Ra2 exf4 Ra3 bxa3 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 b5 g5 h5 a5 f5+ Ke5 c5 g6 h3 d6 a2 d5 a1B+ Nc3 h4 a6 h2 g7 h3 d7 f3 d6 f4 Kf5 f2 Kg6 f3 a7 b4 Bf4 b3 Qb1 Ne7+ Kf6 Rh4 Qa2 Bb7 Bg3 Rf4+ Kg5 Qc8 d8B Nd7 Kh6 Nf6 e4+ Kd4 d7 c4 Bd3 f1B e5 f2 Nd5 c3 e6 c2 Bf5 c1R Qd2+ Bd3 Bc7 f1B Ne3 Rc4 Bg4 Bc6 Bf5 Ba4 Ne2+ Kc5 Nd4 Bc2 Qd3 Kb4 Nc6+ Ka3 Nd8 Kb2 Bg4 Be2 Rc1 h1B Bh2 Bb7 Bf5 Rb4 Qd2 Bc4 Bg4 Rb8 a8N Bbd5 Nb6 Ra8 Kg5 Ra7 g8B Bg7 Bf5 Bh8 Kh6 Ra8 Rg1 Bb7 Rg5 Ra6 Bg4 Ra5 Rc5 Bbd5 Bg3 h2 Qd3 h1B Bh2 Bb7 Bf5 Bhd5 Qd2 Ng6 e7 Bf7 e8Q Ne7 Be6 Rg4 Ned5 Bf1 Qd4+ Ka2 Qc3 Ng6 Rc6 Bab5 Qd2 Rbf4 Rc5 Bd4 Bf5 Bfc4 Qee2 Kb2 Be6 Ra1 Qed3 Bg1 Ne3 Ne7 Rf5 Ne4 Rc5 Ba4 Kh7 Nf6+
r1q1rqbb/1RKNB1kq/1B4r1/3Q1b2/1P2B3/2R1n1n1/2Rp3B/2n1b2Q w - - 0 1 illegal: No possible last move
rq1B3N/1N2K2n/r1q2n2/2Q5/pb1Q4/n1b1bQRR/3P2qr/k1nN2Q1 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 h5 Qb3 f5 Qd1 f3 Bg2 f4 Bh3 Bf5 gxf5 Qd7 Bg4 hxg4 Nc3 Qd6 Nb1 Qd8 Kf2 Kf7 h4 g5 b4 c5 e4 a5 f6 Ke6 h5 g3+ Ke1 a3 b5 a2 e5 Kd5 b6 f2+ Ke2 f1N Kf3 g4+ Ke2 g2 h6 f3+ Kf2 c3 b7 Kc4 h7 c2 e6 Kb3 f7 a4 e7 c4 e8N c3 Rh3 Nf6 Rg3 Bb4 f8Q Nbd7 b8Q Ne3 Ne2 g1R Qa7 Nc4 Ba3 Qb8 Qfc5 Nf8 Nd6 Re1 Nf4 Re6 Qg1 c1Q Qf7 c2 Nb7 Rc6 Rh3 Rca6 Kg3 f2 Kh4+ g3 Kg5 f1Q Nc3 g2 Ng6 Qe2 Nd1+ Qf3 Qh2 g1B Bb2 Bf2 Qg1 Qfg3+ Kf5 Be3 Be5 Qh2 Bc7 Qg2 Bd8 Ka3 Rb1 a1B Rb3+ Ka2 Qfd5 Bac3 Qf3 Ka1 Rg3 Rg8 h8Q Na3 Qh4 Rh8 Qhd4 Rh7 Nh8 Rh2 Rh3 N8h7 Rg3 Ra5 Ke6 R5a6+ Kf7 Qb2 Ke7 c1N Rh3 Qc2 Qff4 Bb2 Qcd6 Bf2 Rbg3 Be3 Qf3 Qc6 Q6c5 B2c3
2Kq4/1n3kr1/QbbB4/3b2BP/qbN5/BR1Nn2N/n1Np3r/q1r1Q3 w - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 a3 h5 Bh3 g6 g5 b5 Bg4 hxg4 a4 f3 axb5 Rh7 Ra6 Rh4 Rf6 Rh8 Rf5 gxf5 Be3 f4 Bd2 Rh3 Bc1 Rh8 Kf2 a5 h4 d5 e4 f5 c4 a4 c5 d3 c6 a3 c7 d2 g6 a2 e5 a1Q g7 d4 b6 d3 b5 Nd7 h5 Nc5 e6 Nf6 g8N Bb7 c8Q Nd5 e7 Bc6 b7 Rh7 b8B Nb7 b6 Rg7 Qe1 d1Q Bd6 Nb4 Nh3 Na2 Nh6 Qa4 Bca3 d2 Qce6 Rc8 Nf7 Bd5 Ne5 Rc1 Nd3 g3+ Kf1 g2+ Kf2 Bc6 Qh6 Kf7 e8N Bd5 Be7 Bc6 Bg5 Bd5 Qc6 Bb4 Qb5 Bc6 Qa6 Bd5 Nc7 Bc6 Nb5 Bd5 Nd4 g1B+ Kf1 f2 Ke2 f1R Nc2 Be3 Rg1 Bec5 Rg3 Rh1 Re3 f3+ Kf2 Qb5 Kg3 f4+ Kg4 f2 Kf5 f1N Rg3 Rh2 Re3 Na5 b7 f3 b8B f2 Bd6 Nb7 Rf3 Bb6 Rg3 Kg8 Rf3 Bc6+ Ke6 Ne3 Rg3 f1B Rf3 Be8 Rg3 Bg2 Rf3 Qa8 Rg3 Qa5 Rf3 Bf7+ Kd7 Qa7 Kc8 Bd5 Nc3 Qa4 Nd1 Qd4 Rg3 Kf7 N1b2 Bc6 Nc4 Bgd5 Qb5 Q7a5 Qa6 Qa1 Ndf4 Nd1 Rb3 Ne3 Nd3 Qc5 Bg3 Qe7 Bd6 Qd8+
7K/1NRR1b2/q1rQ2Q1/b2b1PNp/1Q1N1q1B/5nnr/1Qn5/2q1r1rk w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 h4 gxh4 b4 a6 b6 Bg7 b7 Nh6 b5 Bf8 b6 Ng8 Bb5 axb5 Kd2 Kf7 f4 Kf6 c4 Kf5 c5 d5 g3 e5 c6 d3 Kc3 e3 g4+ Ke4 g5 d2 c7 e2 f5 e1R g6 h3 g7 d4+ Kb3 h2 Na3 d3 Kc3 b4+ Kc4 b3 Bb2 Qd4+ Kb5 Nd7 Kc6 Ra6 b8Q Ngf6 g8Q Bb4 Ne2 Kf3 Rg1 h1B Bc1 e4 Qa8 e3 Qg6 b2 Qb8 b1Q Nf4+ e2 Ne6 Ne4 Nc2 Ba5 Ng5+ Kf2 Ra4 Qba1 Rc4 Ng3+ Rg2+ Kf1 Qb7 Qe5 Nd4 Qf4 Kd5 Ne5 Ba3 h6 Be7 Nf3 Qa4 d1N Qb4 d2 Rc1 Bd7 c8N Be8 Ke6 Bf7+ Kf6 Ne3 Kg7 d1R Rc7 Nc2 Nd6 Rb1 Rh2 Kg1 Qc6 Bg2 b7 Qa3 Qcc5 Rc6 b8Q Qd3 Qb2 Qa6 Q8b4 Rbd1 Rh4 Rc1 Rg4 Kh1 Nb7 Rg1 Rd7 e1Q Qcd6 Qef1 Rc7 Re1 Bd8 Qc1 Re4 Qf2 Ree7 Qfd2 Red7 Qf4 Bf6 h5 Qdc5 Rhe8 Qd6 R8e3 Kh8 Bf1 Nh7 B1c4 Bh4 Bcd5 Ng5 R3e2 Nde6 Rh2 Nd4 Rh3
4B3/R2B1q2/1prN4/4rnNk/2rq2b1/1BPb2Qq/nqnbNK1Q/1N6 w - - 0 1 legal: proof: b4 c5 d4 cxd4 e4 g5 f4 f5 exf5 a5 f6 axb4 a3 Qc7 f5 Qd8 g4 h6 a4 Rh7 Bf4 Rh8 Ra3 Kf7 Rg3 gxf4 g5 Ke8 g6 Ra5 Rg4 Ra8 Rg5 hxg5 h4 e5 h5 d5 a5 g4 g7 Kf7 c3 f3 h6 d3 h7 b6 a6 b3 a7 e4 Bh3 e3 Qc2 f2+ Kf1 b2 Nd2 b1Q+ Kg2 f1Q+ Kg3 d4 Ngf3 e2 Qb2 e1N Qc2 Qd7 Qc1 Ba6 Ne4 d2 Qa3 d1R Qc1 d3 Qf4 d2 Ng1 Qb2 Ne2 Bd3 Qh6 Ne7 g8B+ Ke8 Bd5 Nbc6 Bb3 Rc8 a8B Nb4 Bc6 Nec2 Qf4 Bh6 f7+ Kf8 Qe3 Kg7 f8N Re1 Ne6+ Kf7 f6 Kg6 f7 d1B f8Q Qf7 N6g5 Nf5+ Kf2 Na2 Qg3 Kh5 Nd2 Qde6 Bd7 Rc6 Qfd6 Rhc8 h8N Rc4 Nb1 R8c6 Be8 Qc8 Qh2 g3+ Kf3 g2 Kf2 Qe6 Qdg3 g1Q+ Kf3 Qfg6 Nhf7 Qd4 Nd6 Qgf7 Rf1 Qc8 Kg2 Qd7 Rf4 Qc8 Re4 Qd7 Re7 Qc8 Ra7 Qe6 Nf3 Bd2 Ng5 Qh6 Ng1 Re3 Kf2 Bg4 Ne2 Kg6 Bg2 Qh3 Bd5 Kh6 Be6 Kh5 B6d7 Re5+
r4n1k/1K1Q4/Np4P1/1rqBr2n/1q1R4/4bb1B/1R1b1BB1/nb1R1qQ1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Na3 exf4 Qb3 bxa3 Qc2 Qf6 Qd1 Qd8 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 Kf7 g4 Kg7 d4 c4 e4 f3 a5 h3 d6 h4 Kd5 h2 g5 f4 a6 h3 g6 b6 e5 f2 a7 f3 e6 a2 e7 c3 e8B c2 d7 Qh4 d8Q Nd7 Kc6 Bb4 d5 Bd2 d6 Nf8 d7 Rh5 Kc7 Qb4 Rb1 a1N Bg2 f1R Ne2 f2 Nd4 Re5 Rb2 Nf6 Nb3 Kh8 Nc5 Nh5 Na6 Bb7 Qc8 Be4 d8R Bf3 Rg1 h1Q Bd7 h2 Bdh3 Rfe1 Rd3 f1Q Qd7 Rb5 Rd4 Ree5 Qe1 Be4 Qf2 Bf5 Kb7 Qfc4 Bd5 Qcc5 Rd1 Qf1 Qg1 h1B Bdg2 Be3 Bd2 c1B Be1 Bcd2 Bf2 Rc8 a8B Bb1 Ka7 Rce8 Bad5 Ra8+ Kb7 Qe2 Bf1 Bf3 Bfg2 Qf1
n2k1qb1/1Qq1nRR1/5B2/P2N1r1N/1b4Q1/K4r2/2r1rpN1/2QrN1rr w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 a4 b5 e4 g5 d4 c5 Kd2 f5 Kc2 c4 Kb2 c3+ Ka2 c2 h4 f4 h5 g4 e5 b3+ Kb2 b4 h6 f3 e6 f2 a5 Bg7 d6 Na6 h7 Nc7 e7 Be6 Bg5 c1R Nf3 g1R Qe1 g2 Bf6 g3 d5 Ra6 Rh5 Rh1 Nc3 g1R Rf5 g2 Qd2 Ra7 Ne1 Na8 Qd4 Kd7 e8N Qc7 Qg4 Ne7 Rf4 Rf8 h8Q Rf7 Qh7 Kd8 d7 Rh5 Ra3 Rgh1 Ra4 Bh8 Ng7 Rf5 Nh5 g1R Qh6 Rf8 Rf3 Rd1 Qc1 Bg8 Ra1 Rd3 Rf4 Rf3 Ra4 Re5 Rf5 Re8 Rg5 Rb7 Rg7 Ref5 Rf7 Qc8 Be5 Ng6 Qa1 Rc7 Qd1 Qb8 Bg7 Re2+ Qd2 Rc6 Qh4+ Kc7 d8N+ Kc8 d6 Qb6 Nd5 Qc7 Ne6 Rcc3 Nef4 Rc2+ Ka1 b2+ Ka2 b3+ Ka3 b1Q Nfg2 b2+ Qc3 Rcd2 Rg4 Qe4 Rg5 b1R Qg4 Qe8 Bd4 Ne7 Be5 Bf6 Rgg7 Rbd1 Qe3 Bg5 Bf6 Qf8 Qc3 Be3 Qc1 Bd4+ Kb4 Bc3+ Ka3 Qc4 d7+ Kd8 Qa1 Rc2 Qc1 Qc8 Nde3 Kc7 d8Q+ Kb7 Qd5+ Kc7 Qc6+ Kd8 Qb7 Qc7 Nd5 Bb4+
r2bK1nk/rqqNq2n/q4R2/3nbq2/R1pQ1P2/4QB1Q/4R3/1NQ3q1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 a5 g5 axb4 Bb2 h6 Be5 hxg5 f3 Bg4 f4 Bf3 exf3 f6 Kf2 fxe5 Ke1 e4 Ke2 Kf7 Ke3 c5 h4 b5 a4 e5 d4 c3 h5 c4 h6 g4 f5 g5 d5 b3 f4 b4 h7 Kg7 a5 c2 a6 c1B+ Nd2 b2 d6 b1Q a7 b3 d7 g3 Qh5 g4 Rh4 g2 Qe8 g3 Ra2 b2 Rh3 Na6 Rh5 Qc7 d8Q Nb4 Ne2 g1N Nc3 g2 Rh2 Nh3 Nd5 Ng5 Be2 Be7 Nf6 g1Q+ Rf2 Qa1 Ra4 b1Q Bf3 Bb2 Qd4 Bd8 Nd7 Qh1 Re2 Nd5+ Kf2 e3+ Kg3 Bc3 Kg4 Qhg1+ Kh5 Qbb7 Nb1 Bb2 Qd1 e4 Qc1 Be5 Qe6 Qa3 Qb6 Qad6 Qd4 Qda6 f6+ Kf7 Rea2 e2 Qde3 e1Q Re2 Qea5 Qd4 Rb8 a8Q e3 Qaa7 Ra8 Qac5 Ra7 Q5a3 Ke6 Kg6 Qac5 f7 Qe7 Re1 e2 f8R Qg4 Qae3 Qh3 Rh1 e1Q Rh2 Qg1 Re2 Qf5+ Kh5 Nh6 Rf7 Re8 h8Q Ng8 Qh7 Qh3+ Kg6 Qhg4 Qh3 Qf5+ Kh5 Rf8 Rh7 Re8 Rh6+ Kf7 Rf6+ Kg7 Qdd1 Kh8 Qdd4 Qfe6 Kg6+ Nh7+ Qg3 Qa3 Qg4 Qf5+ Kf7 Be7 Qg2 Rea8 Qh3 Bd8 Ke8 Qe7#
5Q1Q/QbPkr1r1/4qn1N/2R1rr2/3KR3/N6p/rr1QNbB1/1n3bq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Ra5 b7 Qb6 c7 Qe6 b6 Nc6 b8N Rh7 b7 Nb4+ Kd2 d3 Kc3 d4+ Kb2 d2 Ne2 d3 Kc3 Nd5+ Kd4 Nc3 Nc6 Kd7 b8Q Nf6 g8Q Rg7 Ba3 Re5 Qc1 d1R Nd2 Re1 Nd8 Nb1 Qc3 Bb7 Nc4 d2 Bg2 f1R Qh8 d1Q+ Qd2 f2 Qa7 Qc1 Rg1 h1R Bc5 Rh2 Na3 Qd1 Bd5 Qc1 Rg4 Rg2 Re4 Rh2 Qb4 Qg5 Nf7 Qg1 Nc1 Re2 Nh6 Rb2 Bb6 Re1 Qc3 f1B+ Qe3 Rhf2 Qd2 Re3 Ne2 Rff5 e8Q+ Kd6 Qh5 Kd7 Qf7+ Be7 Qff8 Bb4 Qd3 Be1 Qd2 Nc3 Rb1 a1R Rc1 Nb1 Rc5 Raa2 Rg4 Rf7 Bg2 Re7 Re4 Rg3+ Qe3 Rgg7 Qf2 Qh2 Qf4 Qh1 Qd2 Qg1+ Kd3 Qc6 Rc2 Re8 Bf2 R8e7 Kd4 Qe6 Rc5 Bxf2+
kr1nnr2/qq1Q1b2/NQqP2b1/1q3b2/K2B4/N5N1/Q2b1p2/1RbQ2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 g4 c5 b4 Kc7 d4 Kb7 Kd2 f5 Kc2 a5 d5 h5 g5 f3 d6 f2 b6 h3 g6 h2 b5 a4 e5 a3 g7 h4 e6 h3 e7 f4 e8N a2 Nf3 c3 Kb3 c2 Nfd2 f3 Be2 f1Q Rg1 h1B Nc7 h2 Bb2 c1Q Ne4 c4+ Kb4 c3 Nbd2 c2 Ng3 f2 Nge4 Bf5 Bf6 Nc6+ Kb3 Qb8 Bc4 Nd8 Bd4 Nf6 g8Q Ne8 Rb1 a1Q Na6 Bh6 Ng3 Bhe4 Kb4 Qab2+ Ka4 h1B Bd3 Be3 Nc4 Bd2 Na3 Qa7 Qa2 Rf8 Be2 Bg6 Bd3 Bef5 Bc4 Rb8 Be2 Kc8 b7+ Kd7 b6 Kc6 Bc4 Bd5 Bd3 Bdf7 Be2 Qc3 Bc4 Qf3 Bd3 Ra8 b8Q Qb2 b7 c1B Bc4 Qbb6 Be2 Qc7 Qc8 Rb8 Bb2 Kb6 Bb5 Qfc6 Qd7 Ra8 b8Q+ Qc7b7 Qbc8 Rb8 Bf6 Qbc7 Bh8 Qab7 Bc3 Ka7 Bd4+ Qc7b6 Qdc7 Ka8 Q8d7 Q6a7 Qb6 Qfxb5+
q1QqkN2/6Pn/6r1/RqrNK3/r7/B2Q1bbQ/pQ1qNqn1/R1r5 w - - 0 1 legal: proof: a4 c5 d4 cxd4 h4 e5 f4 exf4 h5 b5 e3 d3 axb5 g6 c3 gxh5 Be2 h4 Bf3 Be7 Bd5 Bb4 Bb3 Bf8 Bc2 dxc2 Kd2 d5 Kd3 f5 Kd4 h5 b4 a5 g4 f3 e4 f2 g5 f1Q g6 h3 e5 f4 b6 f3 e6 f2 b5 h2 e7 a4 g7 a3 c4 h4 c5 a2 b7 h3 c6 Nh6 b6 Ra4+ Ke5 d4 c7 d3 Nf3 d2 Rg1 h1R Rg2 h2 Rg4 Qb5+ Kf6 f1Q Rf4 Bg4 c8Q Nf5 Ng1 Nh4 Rf5 Rh5 Nc3 Qf2 Nge2 Rg1 Nd5 h1Q Ke5 Ng2 Ba3 c1R Qb3 d1Q Qh3 Qd2 Qd3 Na6 b8Q Bf3 b7 Nc5 Rg5 Ne4 Qh3 Nf6 Qbc8 Ra7 b8N Nh7 Nd7 Ra4 Rf5 Rg5 Qcc3 Rg6 Qb2 Rgf1 Rf6 Rfe1 Ra6 Rc5 Ra5 Rec1 Qbc2 Bh5 Qb2 Nf4 Kf5 Kf7 Qhe3 Qhh2 Qh3 Qa8 Qhf3 Qhh4 Qh1 Bf3 Qh3 Ng2 e8Q+ Kg8 Qd8 Kf7 Qc7 Qhd8 Qc8 Bd6 Nf8 Bg3 Qdc3 Ke8 Qd3 Nf4 Ke5 Ng2+
2K5/4k1qB/3b2R1/nQrB1r1b/Bnb3q1/3R3p/1NR1bnQP/3q1Bq1 w - - 0 1 legal: proof: d4 b5 b4 c5 e4 f6 a4 cxb4 axb5 e5 Be3 exd4 Bd2 Bc5 Bc1 Bf8 f4 Kf7 e5 Ke8 e6 Bb7 Nd2 Bc8 Nc4 g5 Ne5 fxe5 f5 Bg7 Bd2 Bf8 Bf4 gxf4 Kd2 a5 Kd3 h5 Kc4 d5+ Kb3 f3 Ka4 b3 c4 d3 g4 f2 c5 h4 b6 e4 Kb5 b2 e7 b1B g5 e3 g6 e2 f6 e1Q g7 a4 b7 d4 c6 h3 c7 d2 Kb6 a3 Bg2 f1B Nf3 a2 Qa4+ Qd7 Qc6 d1N Rg1 d3 Nd2 Be2 Bf1 Na6 b8Q Nb4 Qg2 Nf2 Nc4 d2 Nb2 Bg6 Rd1 Qg4 f7+ Kd7 e8B+ Ke7 Bd7 a1Q Ba4 Bca6 c8B Bac4 Kc7 Bh5 Qb5 Ra5 Bb7 Rh7 Rc1 d1Q Bd5 Rh6 Kb8 Rf6 Rc2 Rf5 Kc8 Qc3 Qa6 Rc5+ Qc6 Nh6 g8B Qcg7 Bh7 Qac1 Kb8 Ng8 Qb5 Kd8 Kb7 Ne7 Kb8 Nec6+ Kb7 Be7 f8R+ Kd7 Re8 Bf8 Re3 Bd6 Rd3 Ke8+ Kc8 Ke7 Qh1 Q4d4 Rg6 Qg4 Qg1 Qcg5 Qh1 Qg1 Qf3 Q5g4 Qg2 Na5+
4Q3/1B2n1B1/2Rb1N1q/2Qr2nB/1nQP1p2/n5bb/B1N2k1K/q1br2q1 w - - 0 1 illegal: No possible last move
RnRN4/2nb1r2/R1q3Q1/B1Q2n2/b1p1BBqq/7r/1kPK4/q2nR1b1 w - - 0 1 legal: proof: g4 b5 a4 h5 axb5 hxg4 f4 g3 e4 d6 e5 dxe5 Nc3 exf4 Ne4 g2 Ng3 fxg3 h4 Kd7 b4 Kd6 d4 Kd5 b6 a5 b5 c5 h5 e5 h6 f5 b7 g5 b6 e4 h7 a4 Rh4 e3 Rh5 f4 Qd3 e2 Ra2 f3 Be3 f2+ Kd2 e1N Qa6 a3 Qa7 Nh6 Bf4 Nf5 Ra1 a2 Qa5 g4 Qa7 Nd3 Bh6 Kc4 d5 Qh4 d6 Bd7 Rd1 a1Q Nh3 g1Q Bg5 g2 Qa5 g3 Bf6 Qh1 Bd8 g1Q Nf4 g2 Ne6 Ra7 Re1 Bg7 Be2 f1B Bf3 Nf4 Be4 Bd4 Rh6 Nd5 Rg6 Ba4 d7 Nc7 Bg5 Be2 d8B Bg4 Bf4 Bf2 Qa6+ Kb4 Qa5+ Ka3 Rf6 c4 Qc5+ Kb2 Rh6 Nd7 b8Q Rb7 Qc8 Nb8 Qd6 Ra7 b7 Bb6 Qd3 Qd4 Rg6 g1N Rf6 Nh3 Rg6 Re8 h8R Nf2 Rf6 Nd1 Rfh6 Nca6 Qc5 Nc7 Rf6 Qdg1 Qg3 Bh3 Qg6 Qgg4 Rg8 Re7 Rgf8 Rh7 Rh8 Nc6 b8R Rb7 Rc8 Nb8 Ng5 Ba7 Ra6 Rb3 Ne6 Rf7 Qd5 Bg1 Qc5 Na8 Ba5 Nc7 Nd8 Qhf3 Bd3 Qc6 Rf8 Bg2 Be4 Rh3 Bd3 Bd5 Be4 Be6 Nb7 Ne8 Rd8 Nd7 Rda8 Nc7 Rfc8 Nb8 Nd8 Bd7
Q4n2/R1Rb2q1/1k1K2BQ/n2nq1p1/b1r2B1q/2bBrR2/R1q2P2/4nN2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 e4 fxe4 h5 b5 g4 Na6 axb5 Nb8 g5 Qc7 h6 Qd8 Nd2 Nc6 Ndf3 gxh6 g6 Nb8 Ng5 hxg5 Ke2 a5 c4 e5 b4 h5 c5 d5 c6 e3 Kf3 d3 g7 e2 b6 e1Q b5 e4+ Kg3 a4 b7 a3 b6 d4 c7 Kd7 Qb3 Kc6 Rh4 a2 Nf3 d2 Rg4 d1B Ng1 e3 Qd3 e2 Bh3 h4+ Kf3 Ra4 Ke4 Rc4 Ke5 Bb4 Qb3 d3 Nf3 d2 Bg2 h3 Bf1 h2 Rf4 h1Q Nh2 Qf8 Qh3 Ne7 g8B Nd5 Bf7 Nd7+ Ke6 Qh6+ Bg6 Qg7 b8R Bc3 b7 Kb6 Kd6 Nf8 Ra8 Ba4 Ra7 Bcd7 c8R d1Q Rc7 Qc2 Rf5 Rhh4 Be3+ Rhd4 Qh6 Qhe4 Bc1 Qh4 Rf3 Re4 Bf4 Re5 Bh3 Re7 Nf1 Re8 Bhf5 Re7 Rc1 a1N Rd1 Nb3 Ra1 Na5 Ra2 Qed2 Be4 Qdd4 Bef5 e1N Be4 Bac6 Bd3 Re3 b8Q+ Bb7 Qe8 Bbc6 Qc8 Ba4 Qa8 Qde5+
3QQ3/5B1b/1K1n1Bqb/N2qn1p1/N1RPk3/N4bq1/rnn1Nr2/1Bq5 w - - 0 1 legal: proof: b4 d5 a4 b5 g4 h5 f4 hxg4 c3 g3 f5 g2 c4 dxc4 axb5 e6 Ra6 exf5 Ra3 f4 Rg3 fxg3 h4 Kd7 d4 Ke6 Kd2 Kd5 Ke3 a5 b6 f5 h5 c5 b7 f4+ Kd2 f3 Kc3 a4 e3 f2 h6 a3 b5 a2 b6 a1N h7 Nc6 b8Q Ne5 b7 Ke4 Ne2 g1Q Qe1 g2 Na3 Qd5 Qd6 g6 b8N Nh6 Nc6 Bg4 Na5 Nc2 Qd8 Nf5 Rh5 Rg8 h8N Bf3 Nf7 Bh6 Rh1 Nd6 Ng5+ Kf5 Rh3 Rf8 Ne6 Ke4 Rh5 Qh2 Rf5 g1Q Rf7 Bh5 Rc7 Qhg3 Bh3 f1B Bf5+ Kf3 e4 Ra6 N2f4 Bd3 Ne2 g5 Bf4 Bg4 Rc6 Q1h2 Bg6 Qh5 Bh7 Qg6 Rc7 Nc6 Be5 Ke3 Bh8 Bf3 e5 Ke4 Bf6 Ra7 Ng7 Rf7 e6 Ne5 e7 Ra8 e8B Ra7 Ne6 Ra8 Kb2 c3+ Kb1 c4 Ka2 Na1 Rc5 c2 Kb2 c1N Kc3 Rf8 Kb4 c3 Bf7 Bb1 Rc4 Ncd3+ Ka4 Nb2+ Kb4 c2 Nc5+ Ke3 Na4 c1Q Bh8 Ke4 Bf6 Qb7+ Kc5 Qd5+ Kb6 Nc2 Rc6 Ra7 Rc4 Kf5 Bg7 Nb4 Ng1 Bfe4 Nb7 Ng4 Be6+ Kf4 Nac5 Qf7 Nb5 Ra3 Na5 Ra2 Na4 Qf6 Beg8 Bg2 Qee7 Ne5 Na3 Ke3 Qee8 Qfe6 Ka7 Rf2 Kb6 Bf3 Ne2 Qf6 Bf5 Bc2 Bf7 Qfe6 Bg4 Bh7 Bf5 Qg6 Bb1 Nc2 Bf6 Ke4
1q4K1/B1q5/b1n4B/k1bQpn2/4Brb1/B2N2qQ/R1nP2n1/r1b2RQ1 w - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 g5 c4 dxc4 Nc3 h6 Nd5 gxf4 g5 h5 Nf6+ Kf7 Ng4 hxg4 Ra6 Ke8 Ra5 Kd7 Ra1 Ke8 Kf2 Kd7 b4 a5 h4 e5 g6 c5 g7 Kc7 h5 Kb6 h6 c3 h7 c2 Bb2 c1B Bd3 g3+ Kg2 c4 Ba3 a4 Nh3 e3 Kf3 c3 Ke4 e2 Bb1 e1N Ra2 f3 Nf4 c2 Nd3 f2 Rf1 Ne7 g8Q g2 Qd5 g1Q Qg4 Nbc6 Qh3 Rg8 h8B Bg4 Bg7 Qb8 Bh6 Rh8 Nf4 Ng2 Nd3 Kb7 b6 Ka6 b5+ Ka5 b7 Nf5 b6+ Bc5 Bg7 Rf8 Bh6 Qc8 b8B Qh2 b7 Qg3 Rg1 f1B Ba7 Qb8 Rh1 Bfe2 Rf1 Rf7 Qb3 Rf6 Kd5 Rf8 Ke6 Rf7 Bb2 a3 Qd5 Rf8 Nf4 Ba6 Nd3 Rg8 Kf7 Rg6 Ra1 a2 Ba3 Rd6 Qc4 Rd4 Qd5 Qd8 b8Q Rf4 Qbb3 Qb8 Qd4 Bb2 Qbd5 c1Q Qg1 Qc2 Kg6 Bc1 Kh7 Qc4 Nf2 Qcc3 Be4 Qc4 Nd3 Qc2 Rb1 a1N Rb2 Qc4 Ra2 Nc2 Qg8 Qf7+ Kh8 Qe7 Qd8+ Qec7 Kg8 Bc8 Qd7 Ba6+ Kf7 N2d4 Rc2 Ne6 Bb2 Ka4 Bb6 Bc8 Kg8 Ned4 Qd5 Ra5 Ba7 Ra6 Rc3 Nc2 Ra3+ Kb5 Ra1 Ra2 Ba3 Ka5 Rb1 Ra1 Rb2 Nfd4 Ra2 Nf5 Qdd4 Bb7+ Qd8 Bc8 Qd5 Ba6+
nQq1Q1b1/1qR4Q/q1rkB3/3P4/1pB2r1B/nNN1Kb1n/3rq3/2r2Q2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 f5 b5 e5 b6 exf4 g3 f3 Qb3 f4 Kd1 f2 Kc2 axb6 Kb2 b5 Qd1 b4 Kc2 Qd3+ Kb2 Qd7 Kc2 Qd8 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4 gxf4 hxg4 e4 Kd7 d4 c5 Kd2 g5 h4 b5 e5 c3+ Ke3 b3 a5 c4 f5 c2 f6 b4 a6 g3 f7 b2 f8Q g4 h5 c3 h6 g2 h7 g3 d5 Nh6 a7 Ng4+ Kd4 Na6 Qg8 Ne3 e6+ Kd6 e7 Nc7 e8B Bg4 Bd7 Qc8 Be6 Nc4 Qe1 Na3 Bh6 c1R Rh5 c2 Qg5 Rf8 h8Q Rf4+ Kd3 Qb7 Bd7 Rc8 Rh1 Na8 Nd2 b1B Qh5 Rc6 Ne2 g1N Qg7 g2 Qe8 Nh3 Qh7 g1R Bg5 Rg2 Nc3 Rh2 Be2 f1Q Ke3 f2 Bc4 Bf3 Nb3 Qg2 Bg4 f1Q Be6 Qg4 Bh4 Rd2 Bg8 Qgc8 Be6 Qa6 Qe2 Qcb7 Rg1 Qd1 Rg7 Qe1 Rc7 Qf1 Qe4 Qg2 Q2d3 Qe2+ Kd4 Re1 Na2 c1Q Rc8 Nc7 a8Q Qh2 Qb8 Rb6 Bb5 Qcc6 Nc3 Rc1 Ke3 Bc2 Qa7 Na8 Bc4 Qcc7 Qe2 Rc6 Qf1 Qd8 Rc7 Qdc8 Q4g6 Qg2 Qgf7 Bh7 Qb8 Bg8 Qh7 Qe2+
2RR1b1b/Kn2q1N1/3n1Bp1/BPr1B1Q1/R3b1q1/rR2b1q1/2Q2nn1/6k1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 d4 cxd4 f5 g6 f6 Qb6 Nh3 Qc7 Ng1 Qd8 g4 Qb6 g5 Kf7 Bh3 Ke8 Bf5 Qa5+ Nc3 Qd8 Nd5 Nc6 Nf4 gxf5 g6 Nb8 g7 Nc6 Ng6 hxg6 Qd3 Nb8 Qd2 Bb7 Qd1 Bc8 Ke2 Kf7 b4 Ke6 c4 Ke5 h4 a5 h5 d5 b6 f4 f7 f3+ Kd2 Kf4 b7 Kg3 c5 Kg2 c6 e5 c7 d3 Kc3 e3 b5 e2 h6 e1Q+ Kb3 d2 Ka4 d4 h7 d3 Qe2+ f2 Nf3 d1N Qe3 f1N Ra3 e4 Qb6 d2 Qd6 e3 Rc3 e2 Rh5 Qe7 Rd5 Nd7 b8R Qg3 Rf5 e1B Bb2 Nfe3 Qe5 Bb7 c8R Bf2 Rf4 Be4 Ng5 Kg1 Rb3 Ng2 Ne6 Nh6 g8Q Be3 Qg5 Nf2 Ng7 d1Q Bf6 Nf5 Rd8 Nd6 Rbc8 Nb7 Be5 Nf6 Rh4 Ne8 Bf6 Qed7 Rf4 Ned6 Rh4 Be7 f8B Q1g4 Qc4 Rg8 h8B Ra7 Ka3 a4 Kb4 a3 Qc2 a2 Be5 a1B Bf6 Nc5 Be5 Rc7 Ka5 Ncb7+ Ka6 Rc5 Ka7 Bb2 Ne8 Bc3 Bhf6 Qde6 B8g7 Bf8 Bh8 Ba1 Ng7 Qe7 Bc3 Bb2 Ba5 Ba1 Ne8 Rg7 Be5 Rf7 Bhg7 Rf3 Bgf6 Bed4 Ng7 Rfc3 Rb4 Ra3 Rb3 Be3 Ne6 Qe2 Bf4 Ng4 Bc3 Bd5 Bg7 Bf6 Be5 Nf2 Ra4 Qef3 Bh6 Bh8 Bhg7 Qfg4 Bgf6 Bf3 Ng7 Be4
4Q2q/5q2/3Q1prN/Nn1RP1N1/2R2n2/b1bn2q1/1bn3N1/k1qQ1KrB w - - 0 1 illegal: No possible last move, all moves rejected
b1rbBnN1/KqQq4/2p5/N5Rq/n1QbB1Q1/5r2/r5PB/r1qk2B1 w - - 0 1 illegal: No possible last move
rB2Qq2/r1Br1qp1/5R2/BbP1Nq1k/1K1bN3/1b6/B2rqQ1n/5Q1n w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 a5 h4 d5 c4 f5 e4 Kf7 h5 f4 h6 Kg6 h7 f3 b6 f2 b5 a4 e5 a3 b7 d3 Kc3 a2 b6 a1R e6 d2 e7 d4+ Kb4 d3 Qe2 d1Q Qe3 d2 Qf3 Nf6 Qc6 Nd7 b8B R1a7 b7 Nc5 Bd6 Nd3+ Kc3 Ng4 b8B Ba6 Bbc7 Bb5 Nf3 g1Q Nd4 g2 Qc5 Qe2 Nc6 d1B Nd2 Nh2 Ne5+ Kh5 Ne4 Bb3 Bd2 Qd7 e8Q+ Qf7 Be1 Be7 Qe3 Bf6 c5 Rd8 Bb8 Rdd7 Bdc7 Rf8 Qe6 Rfd8 Qa6 Ra8 Bb6 Rda7 B6c7 Rd7 Qa1 Nf4 Kb4 Nh3 Ng4 Bd4 Ne5 Qd1 Bc4 f1Q Qf4 Qde2 Qf2 Qf8 Bc3 Qb1 Be6 Qgf1 Bd5 g1R Bg8 Rg6 h8Q+ Rh6 Rg1 Qbd3 Rg6 Qdf3 Bd5 Q3f5 Rf6 Qf7 Qe8 Rh7 Qf4 Nf2 Qe3 Nh1 Qf2 Rh6 Bd2 Rg6 Be6 Rg2 Be1 Bc2 Ba2 Bb3 Bd2 Rg3 Qd1 Rd3 Bc3 Rd2 Qb1 Q1h3 Qbf1 Qhf3 Ra6 Q5g6 Ka3 Qfc4 B3a5 Qf8 Rf6 Qcf7 Kb4 Qf5
1k6/5Pn1/rN2QQR1/1B1N1R2/bq1n1bq1/qpK1Qnr1/2RQ1q2/n5b1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Bb2 fxe4 Ba3 bxa3 d4 Kd7 Kd2 h5 g4 e5 f4 c5 d6 b5 a5 c4 d5 h3 f5 a2 a6 h2 a7 e3+ Kc3 e4 f6 e2 g5 e1Q+ Kc2 h4 g6 c3 g7 h3 f7 e3 Qh5 e2 Qg6 b4 Na3 b3+ Kd3 c2 Rd1 a1N Nb5 c1B Na3 Qb6 Nc2 Qeb4 Rd2 Nc6 Ne3 Nh6 g8R Nf5 Nc4 Ng7 Rc2 Qf2 Nb6+ Kd8 d7 Kc7 Qe6 Bf4 Qe3 Bc5 d8Q+ Kb7 d6 Nd4 Qde8 Bd7 Q8e6 Ba4 d7 Rh7 d8Q e1N+ Ke4 Qa3 Qdf6 Nef3 Kd3 Rh6 Ne2 Rg6 Qd2 Rg3 Kc3 Kc7 Rg1 h1Q Rd8 h2 Rd5 Qhg2 Rf5 h1Q Qee3 Bg5 Nf4 Qh4 Bb5 Kb7 Nfd5 Bf4 Rh1 Qg4 Rh6 Q2h3 Rg6 Qhh4 Qfe6 Rh8 Nb4 Rh6 a8Q+ Kc7 Qae4 Kb8 N4d5 Qe7 Rgg5 Rf6 Rg6 Qf8 Qe7 Rc6 Q4e6 Rd6 Na8 Ra6 Q7f6 Ba7 Nab6 Qfb4+ Kd3 Qe1 Nc8 Bc5 Q3e4 Nc6 Ncb6 Bg1 Qee2 Ncd4 Qe2e3 Qe7 Kc4 Qf2 Kc3 Qeb4+
Q1Q1RK2/4pnQQ/4nB2/1Bn3nb/1qP1qB2/r1b5/2rN2r1/1r1k1qR1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 Nd2 gxf4 Ndf3 h6 g5 h5 Ne5 Ba6 Ng4 hxg4 Rb1 Bb7 Ra1 Bc8 Kd2 Kf7 h4 Kg6 b4 Kh5 c4 a5 g6 d5 b6 f3 b7 g3 b5 Kg4 b6 g2 h5 a4 g7 d3 Ke3 d4+ Kd2 a3 h6 e3+ Ke1 e2 Kd2 e1N h7 a2 Qc2 f2 Qb2 Qd5 Qb5 Nc6 b8B Nf3+ Kd1 d2 Ke2 d1R b7 d3+ Ke3 d2 Qa6 Ng5 Bd3 f1Q Bg3 Nd8 b8Q Nde6 Bb2 Rb1 Bf4 d1Q Nf3 g1R Bf6 Rg2 Bg6 Qa4 Be8 Nh6 g8Q Qb4 Bb5 Nf7 Nd2 Bg7 Rg1 Bd7 Qa3 Be8 Qc8 Ra5 Qc3 Ra3 Qf8 Rg8 h8Q Qf5 Qh7 Qc2 Qcd3 Rh8 Qe4 Rh2 Qea8 Bh8 Bb2 Bc3 Qh7 Nh6 Qfg8 Bh5 Qgg7 Nf7 Nb3 Be1 Bf6 Bc3 Nd2 Rc1 Rb1 a1N Rb2 Nb3 Rb1 Nc5 Rb3 Be5 Rd3 Bc3 Rd8 Rb1 Re8 Qg6 Bd6 Nh8 Ba4 Rg3+ Nf3 Rc2 Bf4 Rgg2 Bb5 Qf5 Nd2 Nf8 Ne4 Bd2+ Kd4 Kf3 Nf2+ Ke2 Ne4 Qg6 Kd5 Bc3 Nd2 Kd1 Rd8 Nb3 Kc6 Nfe6 Kd7 Nhf7 Ke8 Ned4 Kf8 Nc5 Re8 Qd3 Qab8 Qe4 Qa8 Nde6+
2n4r/2P1KnrN/2r1pN1Q/1bkbBr2/q2q1R2/1q6/B1n1BB1n/2QQ4 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 f5 a4 fxe4 d4 h5 Ra3 c5 Rg3 cxd4 Rg4 e6 f5 Bd6 g3 Bf4 gxf4 hxg4 Kf2 Ke7 Kg3 Kd6 h4 g5 c4 b5 f6 b3 f5 b4 h5 b2 f7 b3 f8B+ Ne7 f6 e3 a5 e2 a6 e1N f7 d3 h6 d2 h7 Nc2 a7 Ba6 Ne2 Nc6 Rh3 Ne5 Ng1 Bb5 Be2 Rc8 a8B Rc6 Na3 b1B Bb2 Kc5 Bc3 d5 Nf3 d4 Rh4 Ba2 Nb1 b2 Qc1 d1R Nbd2 b1Q Ne4+ Kb6 Be1 d3 Nf6 d2 Bg7 Qb3 f8Q Nc8 Bf2+ Qd4 Qd6 Nf7 Qd5 Rf1 c5+ Ka5 Qd7 Kb4 Qd6 d1Q Qd5 Re8 h8Q Qa4 Qh5 Rh8 Qh6 Q1d3 Qd7 Bd5 Bb7 Qdb3 Ba6 Rd6 c6 Kc5 c7 Rc6 Bc4 Qbb4 Ba2 Qbb3 Kh2 g3+ Kh3 g2 Rf4 g4+ Kh4 g1N Ng5 g3 Ngh7 g2 Qd8 Nfd6 Kg5 Nf3+ Kg6 Nh2 Qd7 Ne4 Kf7 g1R Qd8 Rg5 Qd7 Rfg1 Qd8 Rf5 Qd7 Nb6 Ke7 Nd6 Qd8 Nf7 Qd7 Bf1 Be2 Rg4 Ng8 Rg1 Be5 Rg2 Ngf6 Rg7 Qd8 Nc8+ Kd7 Qde3 Bh5 Be4 Bf3 Bb5 Be2 Nb6+ Ke7 Bf3 Qdd1 Bd5 Re4 Qed4 Rf4 Nc8+
1b1k1n1R/N1p1b3/4R3/q2n1b2/1rrP2N1/3rQ1NB/3QbKn1/2QnQ2q w - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 h5 b3 hxg4 f5 e6 Ba3 exf5 Be7 b6 a4 b5 Bh4 f4 Bg3 fxg3 axb5 Qg5 Ra2 Qf6 Ra1 Qd8 e4 g5 h4 a5 d3 f5 e5 g2 e6 g3 b6 g4 e7 c3 h5 f4 b7 f3 b4 c2 b5 c1R b6 f2+ Ke2 a4 h6 a3 h7 a2 Nc3 Nf6 Ke3 Nd5+ Ke2 Nd7 b8N Ra3 Nf3 g1B b7 g2 Qa4 g3 Nb5 Rc4 Rb1 a1N Nc6 Nc2 b8Q Nce3 Ncd4 Nd1 Na7 Rg8 h8Q Rg4 Rh4 Rb4 Nf5 Rgc4 Ne5 Rab3 Kf3 Rbc3 Be2 f1B Qc6 Bb6 Ra1 g1Q Ng4 g2 Ng3 Qh1 Ra6 Ra3 Qc3 Bc5 Nb5 Ba7 Qbb6 Bb8 Na7 Rab3 d4 Ra3 Qe3 Rd3 Nh5 g1N+ Kg3 Bg7 Qa5 Nf3 Qa2 Ne1 Qd2 Ng2 Rb6 Nb2 Kf2 Bf6 Ng3 Bg5 Qc5 Nf8 Rh8 Bf5 Re6 Qd6 Bf3 Qa6 Be4 Qa5 Bf3 Ngf4 Bg2 Be2 Bh3 Kd7 Nb5 Kc8 e8Q+ Bd8 Qee7 Ng2 Qh4 Be7 Na7+ Kd8 Qc6 Rc1 Qcc3 Rc2 Qhg5 Rc1 Qe1 Rc2 Qcd2 Rcc4 Qdc1 Nb6 Q3d2 Nd5 Qge3 Nd1+
3N1B2/1bpKbPr1/1Rq2k2/3Qb1b1/1Qq1q3/n1rn3N/5N1B/1nQN1n2 w - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ne2 g6 Ng1 g5 g4 h6 b4 Kd7 f5 Ke8 Be2 Qd4 Ra3 Qd8 Rf3 h5 Rf4 gxf4 g5 Kf7 Bf3 Ke8 Bg4 hxg4 Kf2 Kf7 d4 e5 h4 a5 g6+ Kf6 d5 c3 g7 g3+ Ke2 a4 b6 e3 Kd3 f3 Kc4 c2 Kb5 g2 d6 f2 h5 f1N h6 e2 b7 e1N d7 a3 h7 e4 Qd5 e3 Rh2 e2 Bf4 c1B Nh3 g1Q Nc3 a2 Nd1 Nc6 b8Q a1B Rh1 Ne5 Bh2 N5d3 Kc6 Qg5 b5 Be7 b6 Nc2 b7 e1Q Qa7 Bf4 b8Q Na3 Qac5 Bae5 Qbb4 Qe4 Qc1 Qe8 Rg1 Qf7 d8N Bb7+ Kd7 Ra5 Rg2 Rc5 Rb2 Rc3 Rb1 Qg1 Rb2 Qc5 Rb1 Nd2 Rb3 Nh6 g8N+ Kg7 Rb2 Bfg5 Nf6 Rg8 Ng4 Ndb1 Ngf2 Ng4 f6+ Kg6 h8B Rg7 Rb3 Ne3 Rb2 Qg8 f7 Nf1 Rb3 Qh7 Rb2 Qec4 Rb3 Qhh4 Rb2 Qhe4 Rb3 Rh7 Bg7 Kf5 Bf8 Rg7 Qa4 Kf6 Rb5 Ng3 Qb4 Nf1 Rb6+ Qc6+
2n1q2b/PqKNn3/rNb2b1N/4r1bn/p4BRq/Q1Bk2B1/2q5/1Q2B3 w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 h5 g4 hxg4 a3 a5 b5 d5 cxd5 Ra6 Qc2 Ra7 Qd1 Ra8 a4 Qg5 b6 Qe5 Bg2 Qe7 Be4 Nh6 Bd3 Qa3 Ba6 Qb2 Ra2 Qe5 Rb2 Ng8 Rb4 axb4 a5 Qc3 Bb5+ Qc6 a6 Qd7 Bd3 Qd6 a7 Qd8 Ba6 bxa6 Kf2 Ke7 e4 Kd6 h4 Ke5 b7 Kd4 h5 c5 h6 g5 d6 f5 d3 a5 h7 c4 d7 g3+ Kf3 c3 e5 c2 e6 g4+ Ke2 g2 e7 f3+ Kd2 f2 e8Q f1N+ Ke2 f4 Rh2 g3 Kf3 a4 Qg6 b3 Ba3 c1B Qe1 b2 Qge8 Bg7 Nc3 b1Q Q8e7 Bf6 Bd6 Nc6 b8B Bb7 Rh4 Qe8 d8N Qc2 Nf7 Be3 Kg4 f3 Nd5 f2 Qb1 Beg5 Nb6 Kc3 d4 Kd3 Qf8 Nce7 d5 Bc6 Nf3 g1Q Bf4 g2 d6 Qh1 d7 g1B d8B Nc8 Kf5 Nge7+ Ke6 Ng3 Nh6 f1Q Rg4 Qh4 Bbc7 Rg8 h8B Nh5 Bb8 Rg6 Ne5+ Ke2 Bd6 Qf3 Ned7 Kd3 Bb4 Bgd4 Be1 Rb8 Bdc7 Qg2 Nc4 Rb5 Ncb6 Ra5 Bce5 Bb5 Bfg3 Qa8 Bef4 Bc6 Qf7 Bfe5+ Qf6 Ra6 Ng8 Rh6 Bg7 Ng6+ Qe7 Rh7 Nh6 Ba1 Bf8 Bh8 Bg7 Bb2 Bge5 Rf7 Bd4 Rf5 Bde5 Qd8 Qb4 Nge7 Qa3+ Bc3 Bd6 Qe8 Bb4 Ke4 Ba5 Bcf6 Bac3 Kd3 Nc4 Nb6 Kd6 Re5 Kc7 Nbc8 Ncb6 Qb7#
4qN2/p1rr2nN/4n1Rq/5RbN/1k2P3/RNb1Q3/nQ4bB/qb3K1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 h4 Ke7 c4 Kd6 b4 g5 e3 f5 h5 f4 b6 d3 b7 d2+ Ke2 g4 b5 Kc5 b6 d5 h6 d4 h7 f3+ Kd3 f2 Ke2 f1N Qc2 d1N Ra2 d3+ Ke1 d2+ Ke2 Nc6 b8R Nh6 b7 Qe8 Ra4 Nf5 Qb3 Be7 Rh4 Nd8 Rh6 Bg5 Nh3 g1B Qb2 g2 Ra3 g3 Nf4 Ne6 Nh5 Nfg7 Rg6 Bd7 Rd8 Rc8 b8N Rc7 e4 Bb5 Rdd3 Bd4 Rf3 g1Q Rf2 Rf8 h8N g2 Nf7 Qh1 Rff3 Be5 Rf5 Nc3+ Kf2 d1B Bf4 Ba6 Bh2 Ng3 Nd2 Na2 Nb3+ Kb4 c5 Bf3 c6 Bc3 Nd7 Rh8 Nf8 Bd3 Nd8 Rd7 c7 Rh7 c8Q Bb1 Nf7 Qc1 Qa6 Qf4 Kg1 Nh1 Qae2 Qh4 Qe3 Rc7 Nf6 Qh6 Nh5 Rh8 Nh7 Rf8 Ne5 Rff7 Nd7 Re7 Bg3 Rf7 Ndf8 Rfd7 Kh2 g1Q+ Kh3 Qc1 Bh2 Bg4+ Kg2 Qd1 Qe1 Bf3+ Kf1 Qc1 Qd2 Qb2 Qee3 Qa1 Qb2 Bg2+
Qn3q1k/n3N3/Bq2R3/3q1nR1/1P1qn2K/1b1QB1B1/pqn4R/b5Rr w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 Na3 a5 Nc4 h5 Ne5 f4 Ra3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Rh6 Ng4 hxg4 Kf2 Rh3 Ke1 Rh8 Kf2 Kf7 e4 d5 b4 g5 c4 Kg7 h4 d3 e5 d4 h5 g3+ Ke1 f2+ Kd2 g2 c5 f3 c6 a3 e6 a2 e7 g4 e8R g3 c7 a4 Bb2 a3 Bc3 Nf6 Rb1 a1N Rc1 a2 Bb2 Nc2 Qe2 Ne4+ Kd1 d2 Qd3 Qd5 Nh3 g1Q Re6 g2 Nf4 Qh2 Ng6 g1Q f6+ Kg8 h6 Bg7 f7+ Kh7 Rb6 Be6 Ne7 Qg6 Be2 f1N f8B f2 c8Q Nfg3 Rg1 Nf5 Rg5 Bf7 Ra6 Qb6 Qb7 Qg2 Qa8 Bg8 Bf1 Bf7 Ke2 d1N Rb1 Qh2 Kf3 Ndc3 Kg4 Nb5 Ba3 Na7 Bc1 Be6 Be2 f1Q Be3 Qff2 Rg1 Bg8 Qa3 d3 Qb3 d2 Qd3 Bf6 Bg7 Bd4 Be5 Ba1 Bg3 Qdd4 Bf1 Bb3 Be2 Qd5 Bf1 d1Q+ Be2 Qbd4 Re6 Qc1 Bf1 Qcb2 Be2 Qhg2 Bf1 Qgf3+ Kh3 Nfd6 Kh4 Qf8 Be2 Rg8 Bf1 Kh8 h7 Q2f6 Qd2 Qb6 Ba6 Qfd4 Qd3 Rg6 Bef2 Rf6 Be3 Rf1 Rge5 Kg7 h8R Re1 Rhh5 Rd1 Rhg5+ Kh8 Ref5 Re1 Rf2 Rb1 Rh2 Rd1 Rgg2 Rh1 Rg1 Nf5+
q5Q1/2NK3Q/3Nbq2/B5rr/2b1pbBq/1Nb1kP1r/2Q3R1/qnN4b w - - 0 1 legal: proof: a4 c5 e4 h5 b4 f5 d4 fxe4 Ra3 cxd4 Rg3 a5 Rg4 Nc6 f3 Ne5 f4 Nf3+ gxf3 axb4 Be2 hxg4 Bd3 Kf7 Bf1 Ke8 Kd2 Kf7 h4 Kf6 c4 Kf5 a5 g5 a6 e5 a7 b5 c5 d5 c6 e3+ Kd3 b3 h5 b4 h6 e2 c7 e1B h7 e4+ Ke2 g3 Nh3 g2 Rg1 d3+ Ke3 b2 Kd4 b3 Be3 g4 Nd2 b1Q Nc4 b2 Nd2 g3 Qa4 Nf6 Ng5 Bd6 Qc2 Be6 c8N Qa1 Nh3 b1B+ Qb2 Ba2 Nb3 d2 Bc4 d1Q+ Nd2 Qa4 Rh1 g1Q Nb6 g2 Rh2 Qh1 Nb3 g1R Nc8 Rg5 Ng1 Bd2 Re2 Qh4 Rg2 Be5+ Kc5 d4 Qc2 d3 Ba6 Bdc3 Bd2 Nd5 Ne2 Qf6 Nec1 Rh5 Be1 d2 Bb5 d1B Kc6 Rb8 a8N Be2 Nc7 Bf1 Bd2 Rg8 h8Q Rgg5 Qg7 Rb7 Qd7 Qa8 Nd6+ Kg6 f5+ Kh6 Be2 Bf4 Ba6 Rb5+ Bb7 Rg3 Qh7+ Kg5 Na5 Bac4 Nab3 Bd4 Ba5 Nc3 Nce8 Nb1 Nc7 Bf7 Kd7 Bc3 Bc8 Rd5 Rd2 Bg2 Re2 Bh1 Rg2 Qd4 f6 Be6+ Ke7 Rc5 f7 Qf6+ Ke8 Rf5 f8Q Re5 Rd2 Rh3 Rg2+ Bg3 Qfg8+ Kf4 Nc5 Reg5 N5b3 Qg6+ Kd8 Ke3 Ke7 Bf4 Bd7 Bf7 Bg4 Qf6+ Kd7 Bfe6+
1n1q1bN1/5P2/n1B1R1rB/qb3N2/q1b5/2Qnb1n1/K2p1Qnk/2N1B2N w - - 0 1 illegal: No possible last move
K3NR2/R2pB1n1/q5BB/6q1/Q1rr3R/1qrP4/4b1Br/n1nqQqk1 w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 f3 g3 a6 b5 axb5 Qc2 bxc4 Kd1 f2 Qb3 c3 Kc2 Qf6 Kd3 Qh4 Qd1 Qg5 Kc2 Qd8 Ba3 f5 Bc1 h5 Na3 f4 Nc4 f3 Ne3 Bd6 Ng4 Bf4 gxf4 hxg4 Kb3 Ke7 Kc4 Kd6 Kb5 Kd5 e4+ Kd4 h4 c5 a4 g5 h5 g3 e5 c4 e6 c2 f5 c3 e7 g2 e8R g4 f6 g3 h6 Ne7 h7 Nbc6 f7 Na5 f8B Nb3 a5 Nf5 a6 Qg5 Kb6 Ng7 Bc4 f1Q a7 f2 Bd5 Qa6+ Kc7 f1Q Re6 b5 Rb6 b4 Ra4 Na1 Nh3 g1Q Rf6 g2 Qe1 Kd3 Bb7 b3 Be7 b2 Rf8 b1Q Ra3 Rb8 a8B Qb3 Nf2+ Kd4 Bd5 Rb4 Ne4 Rc4+ Bac6 Bb7 d3 Ba8 Bd2 c1R Bf7 c2 Rh4 Qh1 Bg6 g1R Bf4 Rg4 Nf6 Qhf3 Ne8 Qd1 Ra4 Bb7 Kb8 Ba8+ Bb5 Bf3 Bd2 Be2 Ra2 Qd5 Bh6 Qg5 Ra4 Ke3 Ra3 Qb6+ Ka8 Rgd4 Ra7 Qa6 Bc6 Rc3 Bg2 Rcc4 Qa5 Rc3 Qa4 Rcc4 Bf7 Kf2 Bg6+ Kg1 Rf5 Rf8 h8Q Rf7 Rf2 Rf3 Qg8 Rh3 Qe6 Rh2 Rf7 Rb1 Rf3 c1N Rf8 Rb2 Qe5 Rbc2 Qea5 R2c3 Q5b4 Rc2 Qe1 R2c3
5k2/PRNq2nr/3qb1nQ/1RpqQ3/1KNb4/4n1R1/3nN1Bb/Nn4b1 w - - 0 1 illegal: No possible last move, all moves rejected
3bk1N1/PQrn1qqp/3Q2R1/nb4RR/3n4/N1Nn2n1/2K2Rb1/b3B2q w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 fxe4 f5 c5 Na3 cxd4 Nb1 g6 h4 b5 g4 Ra3 f6 Rh3 g5 Rd3 Bh3 Nc6 Bf5 gxf5 g6 Nb8 Nc3 Rg3 Nb1 Rg5 hxg5 Bb7 Nd2 Ba6 Nb1 Bc8 Kd2 e5 c4 d5 a4 f4 g7 e3+ Kd3 e2 g6 e1B a5 e4+ Kc2 f3 c5 e3 a6 b3+ Kd3 f2 a7 f1N c6 b2 c7 e2 Bf4 b4 Qc2 b3 Bd6 Bc3 Rh4 e1N+ Ke2 d3+ Kd1 d2 Bc5 d4 Ne2 Nd3 Ng1 Bh3 c8R Nh6 g8Q Ng3 g7 Nd7 Nf3 Bg2 Rc6 Qe7 Qc4 Nhf5 g8N Qg7 Rg4 Be7 Rca6 Bd8 Na3 b1Q+ Qc1 b2 Qb4 Qa2 Rg5 b1B Qcb2 Qaf7 Ng1 Ba2 Qb8 Bc4 Ne2 Bb5 Kc2 d1N Qb1 N1b2 Bb4 Nc4 Qd6 Bb2 Be1 Na5 Ra2 Ba1 Nc3 Bbc6 Qbb8 Bb5 Rb6 Nc1 Qb7 d3+ Kd1 d2 Kc2 Nd3 Rb2 Nc6 Rb4 Na5 Rh4 Nc1 Rhh5 d1Q+ Kb1 Qf3 Kc2 Nd3 Rg6 Bc4 Rb5 Qf1 Rd5 Qh1 Rc5 Bb5 Rd5 Ne7 Rdg5 Nec6 Ne2 Be7 Rc5 Qff8 f7+ Kd8 Nh6 Qe8 f8R Nd4+ Kd1 Bg5 Rf2 Qef7 Nc3 Bf6 Rcg5 Rf8 Qdc6 Ke7 Qcc7 Rc8 Qd6+ Ke8 Ng8 Rc7 Kd2 Bd8 Kd1 Ndf5 Kc2 Nd4+
8/N3q2K/qbnNnkB1/N1r1qq2/5rnP/npRq1q1N/1B3B2/2Q4Q w - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 d4 cxd4 f5 b6 f6 exf6 Bg5 f5 Nd2 f4 Nb1 f5 Bh6 f3 Bc1 f4 a4 Bb7 Ra3 h6 Rc3 Be4 Rc5 h5 Rg5 Bf5 gxf5 Nc6 Rg3 Nb8 Rg4 hxg4 Kf2 Ke7 e4 d5 h4 g5 c4 g3+ Ke1 d3 Kd2 g2 a5 b5 a6 b3 c5 f2 c6 g4 e5 g3 a7 f3 Ke3 d2 Kf4 b4 Kg5 b2 Kg6 b3 c7 d4 c8Q d3 e6 Nf6 Qe1 d1Q Qec3 d2 Qc2 Rh5 Ba6 f1Q Na3 b1N Qa2 f2 Bd3 Nc6 Nb5 Na3 Nh3 g1N Qb1 g2 Bb2 Ng4 Rh2 Rb8 a8N Ne2 Na7 g1Q Nb6 Qg3 Nc4 Qe5 Na5 Rb4 Bc2 Rg5+ Kh7 Kf6 e7 Ned4 Qa1 Ne6 e8N+ Kf7 f6 Qf3 Rh1 Qa6 Rc1 d1Q Bd3 f1Q Rc3 Bc5 Bg6+ Kf8 f7 Ke7 Qb1 Bb6 Nd6 Kf6 f8B Rf4 Qa8 Qdd3 Qc1 Qee2 Bh6 Rc5 Qb7 Qe5 Qa8 Rd4 Be3 Rf4 Bf2 Qdf5 Qb7 Q1d3 Qa8 Ne7 Qe4 Nc6 Qee1 Qf8 Qh1 Qe7+
8/3Q1KB1/1R1PN2R/n1qbBbnb/5b2/Q1br1bbp/3bk2n/RB2B3 w - - 0 1 illegal: No possible last move
1rNK1n1Q/1R3rnr/3B2N1/r1r1p1Q1/1Rbnb3/2P2R1b/3Q4/k1b1Q2n w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 Bc4 Qa5 Be6 fxe6 f6 Qf5 exf5 e5 Bb2 e4 Ba3 Ra5 Bc1 Ra8 Kd2 Kf7 h4 b5 a4 g5 h5 e5 h6 d5 a5 e3+ Kd3 g3 a6 g2 a7 g4 h7 b3 Bd2 b2 Qe2 b4 Bc1 b3 Ra5 g3 Nh3 g1R Bd2 g2 Qf2 e2 Qf3 e1R Na3 b1B Rb5 b2 Nf2 Ref1 Ra5 Bh6 Rh5 Nd7 Qe2 Nf8 Qd1 Ne7 Bb4 Bc1 Rg5 Rh1 Rb5 g1N Rg8 Ba2 c3 Nf3 Bd6 b1B+ Qc2 Rh3 Rg4 Rg8 h8Q Rh7 Rb7 Be6 Ke2 Bc4+ Nd3 Rc8 a8Q Rc5 Nb5 Rf2+ Kd1 Bd7 Nf4 d3 Qaa2 d4 Ng6 d2 Qe4 Bc8 Qe1 Be4 Qc2 Rf1 Qd3 Bd7 Kc2 d1N Na7 Nf2 Nc8 Nh1 Kd1 Bde6 Qd2 d3 Qg5 d2 Rh4 Ba2 Ke2 Bac4+ Ke3 d1R+ Qd2 Nd4 Rg4 Ke8 f7+ Kd8 f6 Rf5 Rb3 Kd7 Rb7+ Kc6 Rf4 Kd5 Rh4 Nd7 f8R Rdf1 Rf7 Nf8 Rf4 Bd7 Rf3 Rf4 Rb4 Bh3 Rg7 Rf5 f7 Rf6 Bb8 Ra6 Bd6 Ne6 f8Q Raa5 Qff4 Nf8 Qfh4 Rf2 Rg3 Rf7 Rf3 Nc6 Qe1 Nd8 Rf2 Nde6 Rf3 Rfa7 Rgb7 Ng7 R7b6 Rd7 Rb7 Rf7 Rf1 Bb5 Re7 Bef5 Na7 Nd7 Rf3 Rb8 Nc8 Nf8 Rb7 Bfg4 Rb3 Kc4 Ke4 Bgd7 Ra3 Bdg4 Ra4+ Kb3 Rb4+ Ka3 Qd3 Ka2 Qdd1 Rc6 Kd5 Ka1 Qdd2 Rc4 Be7 Be6+ Kd6 Bc6 Kc7 Rcc5 Kd8 Be4 Bd6 Bc4
6r1/Q1qRK2p/B6q/3rnrn1/2bN1Qb1/n2N1P1k/QpQ2R2/1bq2R2 w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Bc4 g4 Ba6 fxe6 Bd3 e5 Bf1 e4 h4 g3 f3 Kf7 Be3 Qb6 Bf2 gxf2+ Kd2 Ra4 g4 Ra8 g5 Ke8 g6 Bh6+ Ke2 Bg5 hxg5 Qa5 Kd2 Qd8 c4 e5 a4 Ke7 g7 b5 a5 d5 c5 b3 g6 Kf6 a6 Kg5 c6 b2 c7 d3 Ke3 b4 a7 d4+ Kd2 b3 Qe1 e3+ Kd1 d2 Ke2 d1R Rh6 e4 Rh4 Nc6 Nd2 b1B Ra2 b2 Ra1 Ne5 Nc4 Bg4 c8Q Nf6 g8R Qc7 Rg7 Rf8 Qb4 Kf4 Rf7 Kg3 g7 Rg8 Qf5 Raf8 a8Q Rd3 Rh2 Rd1 Bg2 Rd3 Rd7 f1B+ Ke1 e2 Qa7 Rf7 Qc3 Rd2 Qc2 d3 Bh3 Kh4 Kf2 e1N+ Ke3 Be2 Kf4 e3 Rf2 Ne4 Bg2 Ng5 Bf1 Rd1 Qf6 d2 Qff5 Bd3 Ne2 Rff8 Nd4 e2 Na5 Rf7 Nab3 Bc4 Nc5 Rff8 Nd3 Rf6 Qc3 Nc2 Qb3 Na3 Qc2 e1Q Be2 Rgf8 g8Q Qh1 Qf7 Rg8 Qe6 Bb5 Qa2 Bc4 Bf1 Rff8 Be2 Kh3 Qf6 Bh5 Kf5 Qh2 Qf7 Bg4+ Kf6 Qf4+ Ke7 Qe3 Qf4 Rf5 Ne6 Qeb6 Nd4 Qh6 Nb3 Re1 Nd4 d1Q Nc5 Qc1 Bd3 Be6 Ba6 Bc4 Nd3 Rd1 Nb3 Qe3 Nb4 Rd5 Nd4 Qe1 Nd3 Qe3 Qa4 Bc2 Raf1 Bb1 Qc2 Qc1
5B2/1NN2P2/2RNp2b/1Q3r2/2qr2bp/b1B1QB2/q1K2nN1/1nn1qkr1 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Ra2 fxe4 Rb2 b6 Rb4 axb4 a5 Ra7 axb6 Ra8 Kd2 Kf7 c4 Ke6 f4 Kf5 b7 d5 g3 h5 b6 e3+ Kc2 Ke4 g4 e2 c5 e1B f5 d3+ Kb2 b3 c6 d4 f6 d2 c7 Ke3 g5 Kf2 f7 h3 g6 d3 g7 h2 Ne2 h4 Rg1 h1Q Nf4 Qhd5 Rg6 Na6 b8Q Bg4 c8N Nh6 g8N Qc7 b7 Nb4 Bh3 Na2 Nc3 Ra4 Nf6 Rd4 Ng2 Qcc4 Nce4+ Kf1 Nc5 Qe6 Qc2 d1Q Bd2 Nc1 Bc3 Bd2 Nd5 Qde1 Nd6 Bf4 Qe8 d2 b8B d1R Nc7 Be3 Kb1 b2 Qca4 Rh7 Kc2 b1N Qb4 Qa2+ Qb2 Qec4 Ncb7 Rg7 Re6 Rg5 Ba7 Rf5 Bc5 Ng8 Qb5 Nf6 Qb6 Beh6 Ba3 Bh5 Bg4 Ne4 Bf3 Bg4 Qb5 Nf2 Qe5 Qa6 Qe3 Q2c4 Qb5 Qa5 Ne4 Qa8 Rc6 e6 Bb4 Bc5 Ned6 Qa6 Ba5 Ba3 Bb4 Qa5 Nc8 Qa8 Bf8 Qa7 Ncd6 Qa6 Qb6 Qa2+ Qb2 Q6c4 Rc5 Qee2+ Qd2 Kg1 Rc6 Rf1 Nd8 Qe1 N8b7 Nfd3 Qg5 Kf2 Qf4 Rg1 Qe5 Kf1 Qe3 Qa1 Qb6 Nf2 Qb5 Qa2+
KQNn1r1b/3n4/1P1p1Q2/n2p1B2/5RN1/1nRrb2k/1rRN1nq1/2Rb4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 d5 c6 Be3 cxd5 Bf2 Nh6 Bh4 Ng8 Bg3 fxg3 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 h4 a5 c4 g5 b4 a4 e3 g2 b6 g3 b5 g4 h5 a3 c5 a2 h6 d6 b7 Nd7 b8Q Ne7 h7 Nc6+ Kc3 Qg5 b6 Nd8 Kb4 Ra3 Kb5 Rd3 c6 Bg7 c7 Rf8 Qa8 Bh8 Nh3 g1B Qb8 g2 Rh2 g3 Nd2 f6 Qc2 Kg4 e4 f5 e5 f4 e6 f3 e7 f2 Rc1 a1N e8R Nb3 Re3 Na5 Qb2 Kh4 Be2 f1N Bg4 Bf2 Qf6 g1R Bf5 g2 Rf3 Be3 Rf4+ Kg3 Rc3 Rh1 Rc1 g1N Nf2 Nh3 Ng4 Nf2 Rg2+ Kh3 Rc3 Bb7 c8N Bc6+ Ka6 Ba4 Ka7 Rh2 Ka8 Bd1 Rg1 Ng3 Rc2 Ne2 Re1 Nd4 Rg1 Bf3 Rgc1 Ndb3 Rc3 Rh1 R1c2 Rb1 Rc1 Rb2 R1c2 Bg7 Rc1 Bd1 h8R+ Qh6 Rg8 Bh8 R1c2 Qg5 Rg7 Ndc5 Rc7 Nd7 Rc1 Qg7 R3c2 Qg5 R7c3 Qg6 Be6 Qe4 Bf5 Qg2
q1R3B1/nQbbBB2/3b4/K3Q1B1/b3pPr1/1q2q2Q/1bpN1k2/Rrn5 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 d5 e4 dxc4 b5 f5 Nc3 fxe4 Na2 b6 Nb4 axb4 a5 Qd4 axb6 Qd8 g4 Kd7 d4 Kd6 Kd2 Kd5 g5 c5 f3 e5 g6 h5 g7 b3 Kc3 b2 b7 b1Q b6 e3 Ra5 e2 Rb5 e1B+ Bd2 h3 Qc2 h4 Qa2 h2 Qc2 h3 Rb4 Na6 b8Q Qg5 b7 Qe3+ Bd3 Ne7 Qa7 Rg8 b8B Bg3 Bc7 Nc6 Be1 Rb8 Bd2 Bd6 Rb7 Bd7 Qb3 Nab4 Qa8 Na7 Qc2 Qd1 Qb3 Na2+ Kb2 Ba4 Ka3 Nc1 Bg6 Bd7 Qd3 c3 Bd8 c2 Be7 c4+ Rb4+ Rb7 Bh5 c3 Bf7+ Kc6 d5+ Kc5 Ra4 Rb1 Qb7 Bf4 Qf5 Bg3 Ra5+ Kd4+ Rc5 Bb8 d6 Ba4 Qf6 Kd3 Ne2 Bf4 Rg1 h1Q d7 h2 Ng3 Qg2 Re1 h1B Ne4 Bh2 Rg1 Ke2 d8Q Bd7 Rc8 Bd6+ Nc5 Kf2 Qe6 Bb8 Qa5 Ne2 Be8 c1B+ Qb2 Qh6 Kb4 Ra1 Qba3 Bb2 Qab6 Qc2 Rb1 Nc1 Ka5 Qd3 Qf6 c2 Bf7 Ba4 Qf4 Qd5 Qc3 Qb3 Qg4 Qf4 Qh3 Qe4 Qb5 Qg3 Qa6 Qa8 Qb7 Bg2 Bh6 Bf1 Bd2 Bfb5 Bf4 Bd7 Ne4+ Ke2 Nd2 e4 Bh6 Kf2 Qf6 Qg5+ Qff5 Bhd6 Qe5 Qge3 f4 Rh8 Bhg5 Rh4 g8B Rg4 Qb6 Ke2 Qa6+ Kf2 Qb7 Bba3 Rb2 Rb1 Ra2 Bb2 Ra1 Bbc7+
1BK2n1b/1n2B2r/1qR1B1N1/1bN2rrQ/r1P1N2b/2p3p1/1k1r2Nq/3Q4 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 hxg4 c4 e5 Ra2 exf4 Rc2 cxb4 axb5 d5 Rc3 d4 Bb2 dxc3 Ba3 Bd6 Bc1 Bf8 Kf2 Kd7 e4 Kd6 d4 g5 h4 f5 b6 a5 h5 f3 Kg3 f2 b7 f4+ Kh2 b3 d5 Kc5 h6 Kb4 e5 b2 e6 a4 d6 a3 h7 a2 e7 a1Q e8Q g3+ Kg2 g4 d7 Qa2 Qd3 Kb3 Qd6 Ra4 Qd2 Qb6 d8B Nc6 b8N Nf6 Qd6 Nd7 Nf3 Bg7 Be3 Ba6 Qh5 Bb5 Be7 Nd8 Na6 Nb7 Nh4 Nf8 Nc5+ Kc2 Nd2 b1R Rh2 Kb2 Nde4 Rd1 Rh1 Rg8 h8N Rd2 N8g6 Bh8 Bd4 Rg7 Be5 Rh7 Be2 f1R Qd7 Ka3 Bb8 Kb2 Qd4 Rb1 Qg1 Rc1 Qd1 Rcc2 Rg1 Rd5 Rf1 Rcd2 Rf3 Re5 Rd3 Rf5 Rd6 Rg5 Rc6 f3+ Kg1 g2 Kh2 g1B+ Kg3 f2 Kf4 g3 Ng2 Bf6 Bg4 Bh8 Be6 f1R+ Qdf3 Bf2 Qd1 Bfd4+ Nf2 Bhf6 Ke4 Rg4+ Kd5 Bh4 Nfe4 Rg5+ Ne5 Na5 Kd6 Rff5 Ng6 Bh8+ Bd5 Qa6 Kc7 Nb7 Kc8 Qb6 Be6 Qa1 Qde2 Qh1 Qd1 Qh2
2R3bq/5B1R/5kN1/1Bb3qp/bQ3r2/pP1r1BnQ/R3nBqb/K3b3 w - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 b5 axb5 g5 Nc3 gxh4 Ra6 dxc3 Ra2 Qb6 Ra1 Qd8 f4 Kf7 g4 a5 f5 d5 f6 e5 b6 h5 g5 a4 c5 a3 c6 c2 Kd2 h3 Kc3 e3 b7 e4 c7 e2 Qe1 e3 Rh2 d4+ Kb3 d3 Ka2 d2 Rb1 d1B Bg2 Nc6 b8Q Ra4 Ka1 Nd4 Nf3 Be6 c8B Nh6 Qb3 Bc5 Qeb4 e1B Ba6 e2 Nh4 Nhf5 Be3 c1Q Ng6 Bg3 Bf3 e1B Bb5 Ne2 Bf2 Qcd2 Rg2 h2 Qe3 h1Q b3 Bh2 Rb2 Nfg3 Ra2 Bc2 Qd3 Bd7 Qf5 Bd3 Qh3 Bc4 Rg1 Qg2 Rf1 Kg8 f7+ Kg7 f8R Bg8 Re8 Qb8 Rc8 Bc6 Qa5 Rf4 Qb4 Qd8 Rg1 Bd2 Rd1 Be1 Rd7+ Qe7 Ne5 Qa8 g6 Kf6 g7 Rh7 Ng6 Rh8 Bd3 Ba4 Bb5 Qd8 Ra7 Qdd5 Rb7 Qg5 Ra7 Bf7 Rb7 Rd8 g8B Rd3 Rd7 Bd5 Rh7 Bc4 Bf7 Qb8 Rc7 Qh8 Rc8 Be6 Bfe8 Bg8 Bf7 Be7 Bfc4 Bd6 Bf7 Bc5
K4B1R/3k3B/r1Nr1q2/Pb6/1p5Q/2bQNqN1/npq3n1/qqb1N1Q1 w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 f4 e5 Qb3 exf4 Ra2 g3 Ra3 g2 Qd1 Nf6 Rc3 Ng8 Rg3 fxg3 h4 b5 d4 c5 Kd2 f5 Ke3 g5 a5 g4 d6 c4 d5 f4+ Ke4 b3 e3 c3 h5 f3 h6 b2 h7 f2 Nf3 g1Q Bh3 f1Q Nbd2 g2 Nc4 g3 Bf5 c2 Ne1 Qgf2 d7+ Ke7 Bg6 g1Q d6+ Ke6 Rh6 Qdf6 d8Q g2 d7 Na6 Bd2 c1B Bb4 Bg7 Bf8 Ne7 Qd4 Rg8 h8Q Qd2 Bh7 Ng6 Qd3 Nb4 Qb6+ Nc6 Qc5 Nf4 Qg5 Ba6 Qc5 Nd4 d8N+ Kd7 Nc6 b4 Qg5 Rb8 Qc5 Ng6 Kd5 Rb6 e4 Nh4 e5 Nb3 Ne3 Qc2 Qcd4 Bb5 e6+ Ke8 e7 Kd7 e8N Q1f3+ Q4e4 Qh1 Nd6 g1Q Ndf5 Ng2 Ng3 Qgf1 Be7 Rd8 Bf8 Qhg1 Qd4 Qfd3 Qg8 Qdd1 Qd3 Qb1 Rh4 Qdc2 Rh5 Bd2 Rh4 Nc1 Rh2 Na2 Rh6 Qff1 Qh4 Q1f3+ Be4 Qfc3 Nh5 Re8 Nd4 Qa1 Rh8 Bf6 Qgg5 Ree6 Qgg4 Qcc1 N1c2 Ne1 Qg8 Qh2 Qg1 Qcb1 Ng3 Rec6 Na3 Qhe2 Nac2 Ng2 Ne1 Re6 Bg7 Bc1 Bf8 Qff1 Bh7 Qcc2 Ndf5 Bc3 Ne7 Red6+ Kc5 Rb7 Nc6 Qg4 Rg8 Qf6 Rh8 Ra7 Kb6 Ra6+ Kb7 Qgf3 Kb8 Rb6+ Ka8 Ra6+
4B3/r1QQ2b1/5K2/pPq2R2/1N3R1p/1nRqNn2/r2bkn1Q/rn1n2R1 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Ra3 g4 Ra2 exf6 Ra3 f5 Ra1 f4 Be3 g3 Kd2 Qf6 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Qd8 Kd3 Ke7 Ke4 Ke6 c4 f5+ Kf3 Ke5 b4 h5 e4 a5 c5 d5 b5 a3 c6 d3 c7 Kd4 c8Q a2 g6 d2 e5 Qe7 g5 Bh6 e6 Qc5 g7 Nf6 g8Q Ng4 g6 Nh2+ Kg2 Ke3 Kh3 d4 Kh4 d3 e7 f3 g7 f4 Qc4 Ra7 g8R Na6 Bh3 f1R Bd7 f2 Qdc2 d1N Nd2 f3 Nh3 Ke2 Rc1 a1B Rg4 Bag7 Be8 Rg1 Qc6 f1Q Rf4 f2 Qd7 Rg2 Q4c3 Rf8 Nc4+ d2 Rg1 Rg8 Ng5 Rh8 Ne3 Nf3+ Kh3 h4 Nf7 Rg8 Ne5 Rh2+ Kg4 Qh3+ Kh5 f1N Kg6 Nf2 Nd3 Rf8 Qa4 d1N Nb4 N1d2 Qac2 Rf5 Qe5 Qf1 Qcc3 Nb1 Qec7 Rd5 Qc2+ Rd2 Qb2 Rh1 Qbe5 Rb2 Rc3 Ra2 Rf5 Bg5 Qh2 Qh3 Bf7 Qg3 e8R Qgd6+ Re6 Qd3 Be8 Bf4 Rf6 Bfh6 Nf1 Bd2 Rf7 Qe5 Rf6 Nc5 Ne3 Nb3 Kf7 Qed6 Rf4 Qc5 R6f5 Nb2 Rg6 Rc1 Rg1 Nd1 Kg6 Na3 Kf7 Rca1 Kg6 Nb1 Kf7 Bh6 Kf6 Bg7+
3n1q1b/2B1n3/pNN3nQ/n2rP1b1/r1n1Rp2/4N2Q/1Qq3BN/2Kb2k1 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 h4 Kf6 e4 Ke5 c4 Kf4 e5 d5 b6 f5 b7 g5 b5 d3 c5 d4 h5 g4 h6 Ne7 b6 Bg7 h7 Nbc6 b8N Qf8 b7 Nd8 Nf3 g1N c6 g2 c7 Kg3 Rh6 Kf2 Na6 g3 b8N Nh3 Rg6 g1Q Bg2 Qh2 Bf1 g2 Rh6 g1B Rf6 Nf4 Rb6 Nfg6 Qb3 f4 Nb4 Bg4 Kd1 d2 Kc2 d1N c8Q Nb2 Nd5 Nc4 Nc6 Na5 Bd2 d3+ Kc1 Rg8 Qa2 Bh8 Nbc3 Qg2 Nh2 Bd1 Na4 Qe4 Bb4+ d2+ Kb2 Rg7 Bg2 Qef5 Ne3 Qc2+ Ka1 Rf7 Qh3 Rf6 Bc5 Rd6 Qb2 Rd3 Rb4 Rd5 Nf3 Bh2 Bd6 Bg3 Re4 Bh4 Nh2 Kg1 Bc7 Bg5 Ka2 a6 Nb6 Rb8 Nc8 Rb4 Nb6 Bg7 h8Q B7f6 Q8h6 Bh8 Ka1 Ra4+ Qa3 Bg4 Qa2 d1N Qa3 Nb2 Qa2 Qc5 Kb1 Nbc4 Qb2 Bh5 Kc1 Bd1 Nf5 Qf2 Ne3 Qc2+
4nr2/qnRN3p/Rp1Q1P1k/B1Q5/2Qq1bb1/n4Br1/2B3b1/2nn1K1B w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 g4 Kg7 f4 e5 a4 c5 g5 h3 d6 b3 f5 b6 g6 b2 a5 e3 d5 e4 a6 c4 a7 h2 d7 c3 d6 e2 Qa4 c2 Bd2 c1N Bg2 Na6 Nc3 b1B Bf3 Nc5 Qc4 Nb7 Nd5 Nf6 Nf4 Rg8 Ba5 Kh6 g7 Ne8 f6 Be7 Kf2 e1N Ng2 e3+ Kf1 Nc2 Ra3 Qc7 d8Q Bg4 d7 Bd6 Qc8 Bf4 d8Q Qe7 Rc3 Na3 Q8c5 Bbf5 Qdd6 Qe4 Rc2 Qd4 Rc3 Rf8 g8B Rc8 a8B e2+ Ke1 Be6 Bf7 Bh3 Bg6 Beg4 Bc2 Rc7 Qce6 Re7 Qec4 Re3 Kf2 e1N Kf1 Rd3 Be2 Rg3 Nf3 Ned3 Ne5 Nb2 Nd7 Nd1 Rg1 h1Q Bf3 Qh2 Rh1 Bf5 Rg1 Bhg4 Rh1 Qh5 Rh4 Bh3 Rg4 Qf7 Rg7 Nb5 Ra3 Bfg4 Ne5 Nec7 Be1 Ndc3 Bfd1 Nd8 Ra6 Nb1 Ba5 Ne8 Bae4 Qb7 Rc7 Qa7 Nd7 N5c3 Be2 Nd1 Bc6 Be6 Bd5 Nb7 Bde4 Bhf5 Nh4 Na3 Bh1 Bh3+ Ng2 Beg4 Bf3 Bxg2+
rnr5/rRpR3Q/3q2b1/Q2pr1q1/B4B2/N3n2Q/2Qq2P1/k1r2bRK w - - 0 1 legal: proof: d4 a5 c4 g5 h4 gxh4 b4 axb4 c5 e6 c6 dxc6 Bb2 c5 Bc1 c4 e4 Kd7 f4 Qf6 e5 Nh6 d5 Kd8 d6 Ke8 Nc3 Bg7 Nd5 exd5 e6 Ng8 Ne2 Qe7 Ng1 Be5 fxe5 Qd8 Kf2 b5 a4 h5 e7 Kd7 e8R Kc6 a5 Kc5 a6 f5 a7 c3 e6 f4 d7 h3 e7 h2 Bb2 f3 Ra3 h4 Rf8 b3 e8Q Kb4 Rf5 c2 Ne2 c1R Re5 h3 Ra6 Qg5 d8Q Ne7 Nf4 Nf5 Rg1 h1Q Qf7 h2 Rc6 Ne3 Qff6 Bf5 Re8 Bg6 Be5 Ka3 Qc8 Ka2 Re7 b2 Rb6 b1R Qf7 b4 Qh7 b3 Rd7 b2 Nd3 Ra1 Rb7 b1Q Bf4 Qb6 Ne1 Qd6 Nc2 Re8 Ba6 Re5 Bb5 Kb1 Qch8 Ra4 Na3+ Ka1 Qh3 Ra5 Ba4 Ra6 Ke1 f2+ Ke2 f1B+ Kf2 Nc6 Qg8 Rc8 a8Q Nb8 Qb3 Ra7 Qgh7 Rc5 Rb4 Rca5 Qc2 R5a6 Qb7 Ra8 Qb5 R6a7 Qa5 Qd8 Kg3 Q8e7 Nb1 Ba6 Rc1 Qd1 Rb7 Qd2 Rd1 h1R Na3+ Qc1 Re1 Rf1 Kh2 Qg5 Re2 Rd1 Re1 Qd2 Kh1 Rc1 Rg1 Bf1
1qqq3B/b1p1K3/2Q1BQ2/R1pbN1q1/4Q1B1/Pq2nr2/1b5k/B2n1Rr1 w - - 0 1 legal: proof: c4 a5 g4 f5 f4 g5 e4 d6 b4 axb4 c5 dxc5 Nc3 Nd7 Nd5 Nb8 Ne3 h5 exf5 gxf4 g5 Nd7 Ng4 hxg4 Ba6 Nb8 Bc4 Bd7 Bf1 Bc8 Ke2 Kf7 h4 b5 d4 e5 Kd3 g3 Ke4 f3 f6 Kg6 f7 Kh5 a3 Kg4 d5 b3 h5 b2 h6 b1Q+ Bd3 g2 d6 Kg3 Kd5 e4 d7 b4 Ke6 f2 g6 f1Q h7 b3 g7 b2 Nf3 g1Q Ne1 e3 Nc2 e2 Nd4 e1B Bg5 Qh3+ Bf5 Ne7 g8B Bb7 Nb5 Na6 Nd6 Bg7 f8Q Nb4 Qb3+ Nd3 Qd1 Nf2 Nf7 Ba5 Qa4 Nd1 Qe4 Nd5 Qb4 Bb6 Bg4 Ba7 Bf6 N5e3 Ne5 Qgg2 Rg1 Kh2 Qe4 Qh6 Ra2 Qc8 Qe8 Qg5 Rf1 Bd5+ Ke7 Rb8 d8Q Rb3 Bf7 Rg8 h8B Qd3 Ra1 b1Q Bfe6 Qb5 Qc6 Qbb8 Ra2 Rd3 Rc2 Q1b3 Rc4 Qg3 Ra4 Qg1 Kf7 Qg2 Ra5 Qga2 Ng6 Qg2 Ba1 Bb2 Ne5 Qf5+ Qf6 Rd2 Ke7 Rf2 Bh5 Rf3 Qd7 Qgg6 Qg7 Qh7 Qf7 Rg1 Qc6 Qhg8 Bg4 Qfg5+ Qf6 Qgd8+
1Q1Bn3/1B1N2bB/K1rq4/Qr1rb1P1/n2RB1r1/p3q2N/k2pn3/2qN4 w - - 0 1 legal: proof: f4 b5 d4 g5 g4 gxf4 a4 e5 b4 e4 Ra3 bxa4 Re3 Ba6 Rf3 exf3 d5 Bd3 d6 Bf5 g5 Bg4 h3 cxd6 hxg4 d5 Rh4 d4 Rh5 Bc5 Rh1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 a5 Kb5 Kd5 g6 h5 e3 f5 c3 h4 g5 h3 g7 d3 Qd2 h2 Qd1 d2 Ba3 f2 Qe1 d1R Bc1 a3 Bh3 f1R Bd2 a4 Qe2 a2 Na3 a1B Bc1 f3 Bd2 f4 Nc2 f2 Bg2+ f3 Be1 a3 Nh3 Nf6 g8N Rh4 Qd2+ Rd4 Rg1 Ra6 Bh1 d6 Rg4 Nbd7 Rf4 Bg7 e4+ Ke6 e5 Kd5 e6 Rc6 e7 Nb6 Rg4 Ne8 Ka6 Kc4 b5 Kb3 c4 d5 c5 Ka2 Qa5 Qd6 Ne3 Re4 Bc3 d4 Nf6 d3 Nd7 d2 Bd4 Rb1 Bf6 Be5 Nd1 Rg1 Rh4 f1Q Rg4 Re1 Rd4 f2 Be4 h1Q Bh7 Qf3 Be4 Rc7 c6 Rg4 Bh7 Rc8 c7 Qe3 Be4 Rd8 c8B Rc1 Bh7 Rc6 Bb7 Qc4 Be4 f1N Bh7 Qc1 Be4 Na8+ b6 Ng3 Bh7 Ne2 Be4 Rc5 Bh7 Rb5 Bbe4 Qdc5 b7 Nb6 b8Q Rc8 Bb7 Rc6 Be4 Nd6 e8B Qb4 Bh5 Ne8 Bd8 Qd6 Bh7 Rf1 B5g6 Rff4 Rb4 Rd4 Be4 Rdd5 Rd4 Na4+
rr5N/4q3/3qB2N/q2nP2b/n2p4/QQr1p1kn/RQ2Q1rb/2KRR3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 e4 b5 axb5 g5 Bd2 gxh4 Be3 dxe3 b4 Ke7 g4 Kf6 c4 Ke5 c5 f5 g5 d5 c6 h5 b6 a5 g6 f3 b7 Kf4 b5 a4 g7 a3 c7 a2 b6 d4 Nd2 h3 Bb5 h2 Nh3+ Kg3 Nf4 f2+ Ke2 f1R Nh3 f4 Nf2 h4 Ba6 f3+ Kd3 h3 Kc2 Nf6 g8R+ Bg4 c8Q Bd6 Rb1 a1Q Qe2 Nd5 Qc3 Qe7 Qc5 Rg1 Rd1 Nd7 b8Q Qa5 b7 N7b6 Kc1 Na4 Qa3 Rg2 Rhe1 h1R Nc4 h2 Ne5 Rf1 Rg7 h1N Ng6 Bh5 Ng4 Nf2 Bc4 Nh3 Nh6 f2 Ba2 Bf4 e5 Rh1 Qg8 f1Q b8Q Qf3 Qe6 Qf2 Qb7 Rhb8 Qbb2 Qf3 Nh8+ Qg4 Qbb4 Qg6 Qbb2 Rf1 Rf7 Rff2 Qeb6 Qgd6 Q6b3 Rf1 Rf8 Rh1 Rc8 Rf1 Rc2 Rff2 Qeb5 Rd2 Qe2 Rd3 Qb7 Nb4 Be6 Nd5 Rcd2 Kh4 Q2b3 Bh2 Ra2 Kg3 Q7b4 Nf2 Qbb2 Nh3 Q4b3 Rc3+
2B1k2r/n4b1R/1Q2N2n/1b1P1p1R/2rpR1r1/Q1q5/2qbn3/n2QNR1K w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 c4 d6 c5 dxc5 d4 Qg5 d5 Qe7 Be3 Qd8 Bd4 cxd4 Kf2 c5 e4 h5 b4 f5 g4 a5 Kg2 a4 g5 a3 g6 c4 e5 f3+ Kh2 f2 b6 a2 b5 c3 b7 h3 b6 h4 e6 c2 e7 c1Q g7 Nh6 g8Q Be6 Nc3 Ra4 Qg2 Qc7+ Qg3 Qc2 Ba6 f1B+ Nce2 Nc6 Nf3 Na7 Ne1 Rc4 b8Q+ Qc8 b7 Bf7 Rc1 a1N Qa3 Rg8 Qc7 Rg4 b8R Bg7 Ra8 Bf6 Rb8 Bg5 Rb7 Bd2 Nf4 Be2 Rf1 Qc3 Kh1 h2 Qca5 Qc6 Qb6 Qa4 Qad6 Qac2 Ne6 Bd3 Qg3 Be2 Rc7 Bd3 Bc8 Be2 Kg2 h1N Kh2 h3 Qgd6 Q3b2 Qa3 Ng3 Kg1 h2+ Kg2 Nh5+ Kh1 Qbc3 Rb1 Nf4 Rb3 Qb4 Rh3 Qbc3 Rh5 Bd3 Rd7 Ne2 Rh4 Rc5 Qb5 Bg8 Nf8 Nf7 Qb6 Bb5 Rh8 Rc4 Rh4 Re4 Kg2 h1R Rh2 Rh4 Rh3 Rh8 Rh5 Rh4 Rb7 Rf4 Kh1 Nh6 Rc7 Kf7 e8R+ Bd7 Re5 Rg4 Ne6 Ke8 Re4 Bb5 Rh7 Bf7
Bk1r3Q/1nrn1R2/R3br2/PB2Q2q/1b2R1pq/p2B2B1/3Kb2N/r1q5 w - - 0 1 illegal: No possible last move
1rbNB1q1/1R1Bb2p/3NnNQP/k1r5/q1r1Qn1Q/8/p4K2/1N1n2nb w - - 0 1 legal: proof: f4 f5 b4 c5 a4 b5 e4 fxe4 f5 g5 Bb2 cxb4 Be5 d5 Bf4 d4 axb5 gxf4 Ra3 Qa5 Rf3 Qd8 Re3 dxe3 c4 Kd7 g4 Kc7 d4 Kb6 h4 e5 c5+ Ka5 f6 f3 c6 b3 b6 f2+ Ke2 b2 c7 Na6 f7 Be7 f8N Rb8 b7 Nc5 h5 Nf6 d5 Ne6 h6 Nh5 Qc1 Nhf4+ Kd1 e2+ Kd2 e1R d6 a6 Qc6 Rc1 Ke3 Rc5 Nd7 Qg8 Bb5 f1B g5 Bg2 g6 Bf3 Rh2 Bh1 g7 Rc4 Kf2 e3+ Kf1 e4 Nh3 e2+ Kf2 e1N Nf6 Nc2 d7 Ne3 d8N Rc5 Ng5 Nd1+ Kg3 e3 Qe4 e2 Be8 e1N Ngf7 Nf3 Nd6 Ng1 Rf2 Qf8 g8Q Qf7 Qgg6 Qg8 Rf3 Rc4 Rb3 Rc5 Nd2 b1Q Rb6 Qa2 Nb1 Qa4 Rb3 Ra8 b8Q Rc4 Qa7 Rb8 Qad4 Rb5 Rb2 Rbc5 Rb7 Nfe2+ Kg4 Qf7 Qgf5 Qc6 Qef4 Ka4 Qde4 a5 Qg6 Bd7 c8B Qf8 Qh2 N2f4 Kg3 Qg7 Qf2 Rf8 Qfe1 Qg8 N8f7 Qb5 Qf2 Kb4 Qh2 a4 Qh3 a3 Qh4 Ne3 Kf2 a2 Ne5 Ka5 Bf7 Rd8 Be8 Qa4 Nef7 Nd1+ Kf1 Ng5 Ke1 Bh3 Bg4 Rb8 Nd8 Bf1 Bf5 Be2 Bh3 Bg4 Kf1 Bc8 Bhd7 Nge6 Ke1 Ne3 Kf2 Nd1+
Q3n2k/N3p3/1qQ1rN1b/R1P1Q3/r6n/B5Np/b2n1b1q/KBbQ1q2 w - - 0 1 legal: proof: e4 c5 a4 g5 h4 gxh4 b4 f5 Ra3 fxe4 d4 b5 axb5 cxd4 c4 Bb7 Rd3 Bc8 Rc3 dxc3 f4 Kf7 g4 Kg7 f5 h5 b6 a5 g5 d5 b7 d4 c5 a4 g6 d3 b5 h3 b6 h2 Bg5 h4 Qb3 c2 Kd2 c1B+ Kc3 a3 Qa4 e3 Ne2 d2 Qc6 d1Q Ng3 h3 Bd3 a2 Na3 a1N Bb1 e2 Nb5 Be6 Na7 Rh6 f6+ Kh8 f7 Nd7 b8Q Ne5 b7 Nb3 Qbd6 Nd2 b8Q e1B Bf4 Bg7 f8Q Nef3+ Qe5 Qc7 Qfd8 Nh4 Qb3 Qe2 Qd1 Qf1 Qdd5 Nf6 Qa2 Bf8 g7+ Kg8 Rg1 h1Q Kc2 Kh7 g8N Ne8 Nf6+ Kh8 Be3 Bf7 Bd4 Qd8 Bb2 Qh2 Ba3 Qb6 Rg2 Rg6 Re2 Bh6 Re4 Nd6 Ra4 Ne8 Ra5 Bf2 Qad5 Bg8 Q5f3 Ba2 Qg2 Rd8 Qa8 Rg4 Qgc6 Rd6 Kc3 Re6 Kc2 Ra4 Kc3 Nb3 Kc2 Bce3 Kb2 Nd2+ Ka1 Ndf3 Qab7 Bc1 Qa8 Nd2
B2q4/KN1pRBb1/7N/1Q1Qrr1Q/Qqq3Br/2n2nnP/2n2p2/3b1k2 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 axb5 e5 g4 exf4 d4 cxd4 Ra6 f3 Bf4 gxf4 g5 Qc7 Rf6 Qd8 g6 h6 Rf5 Qf6 Rc5 Qd8 Rg5 hxg5 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 e4+ Kg4 e5 f5 b6 a5 Kb5 d3 c4 d2 e6 a4 b7 a3 c5 a2 c6 a1N h3+ Kg3 c7 Kf2 Kb6 g4 b5 g3 g7 g2 e7 Nc6 b8Q Bb7 e8Q Nh6 g8B Bg7 Rh2 Ra5 Qa7 Nc2 Nc3 Ne5 Nge2 Bd5 Qg6 Bb3 Ng3 Ba4 Rh1 g1Q Be2 Qe1 Bf7 Kg2 Qg4 f2 Nce4 f1R Qh5 f3 Nc5 f4 Nb7 f2 Bg4 f3 Nf5 Qe4 Qa6 Qb4 Ka7 Re1 c8B f1Q b6 Qfc4 Rh2+ Kf1 Re2 f2 Re4 Nf3 Re7 Rd5 Qb5 Re5 Qd5 Bb3 Qa1 d1N Qa2 Nc3 Qa4 Ng8 Nh6 Nf6 Na5 R1e3 b7 Nfe4 b8Q Ng3 Qbb5 Rf5 Bb7 Ree5 Ba8 Rh7 Nb7 Rh8 Ng8 Rh7 Qg6 Rh4 Nh6 Ncd4 Qg5 Bd1 Qh5 Nc2
4q3/2rpkr1P/Rp1N3q/7Q/N1Q3nb/4NrbN/RQB1q2b/Kn4b1 w - - 0 1 legal: proof: d4 a5 g4 c5 f4 cxd4 e4 f5 b4 fxe4 f5 axb4 Bf4 h6 Bg5 hxg5 Bd3 b6 Bf1 Ba6 f6 Bc4 Bg2 Be6 Bf1 Bf5 gxf5 Rh7 Nc3 Rh3 Nb1 Rh8 Kd2 e5 Kc1 e3 Kb2 g4 c4 g5 a4 e2 h4 e1R c5 g3 h5 e4 a5 d3 a6 g4 h6 b3 c6 e3 a7 d2 h7 e2 c7 g2 c8N g3 Rh3 Nc6 Rh2 Be7 Rh5 Na5 Rh2 Nh6 Qc2 d1Q Qc1 Rf8 Qc4 Rf7 Nh3 g1B Nc3 g2 Na4 Ng4 Nd6+ Kf8 Ra2 Rc8 a8N Qe8 Nc7 Bd8 Nd5 Rc7 Rh1 Bh2 Ne3 g1B Bg2 Rf1 Be4 e1B Bc2 Qe2 Ka1 Rg7 f7 Bdh4 Be4 Ke7 Bc2 Rf3 f8Q+ Kd8 f6 Rf7 Qh6 Beg3 Qh5 b2+ Kb1 B1f2 Rd1 Bfg1 Rd5 Nb3 Ra5 Re7 Ra6 Rf7 Ra1 Nd2+ Ka2 Rg7 f7 Nb1 f8Q Rgf7 Qh8 Ke7 Kb3 Na3 Ra2 b1Q+ Kc3 Qbf1 Kb2 Nb1 Ka1 Qc1 Qb2 Qcd2 Nf1 Qf4 Ne3 Qh6
4R1RK/1PQN2pq/NR1rq3/b5r1/3k4/r1r5/pn2qn1B/1Q1n1RQb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Kf6 Ke4 a5 h4 a4 b4 d3 c4 d2 h5 a3 c5 a2 c6 Bb7 b6 Na6 b5 Nb4 h6 Qc8 h7 Ra3 Nf3 g1Q Ne5 g2 Nc3 Nh6 Na4 Qh2 Qg1 d1N Bf4 Nd3 Rb1 N3b2 Nc5 Ng4 Na6 Bb4 e3 Rd8 h8R Ba5 Rg8 Qh7+ Kd5 d6 e4 Ngf2 Bh2 Ba8 b7 Qe6+ Kd4 d5 b8Q Rf8 b6 Rc8 c7 Bc6 Kc5 d4 b7 d3 Nd7+ Ke7 Kd4 f5 e5 f4 Qa7 f3 Qb6 d2 Qb5 Ra8 c8Q Rc3 Qc7 Kf7 Qbf1 Kg6 Qe1 Kf5 Qef1 Nh3 Qb5 f2 Qbb6 f1Q Qb4 Qe8 e6 Qe2 e7 Nhf2 Qb3 Qeg6 e8R Qge6 Qbb6 Nbd3 Rb4 N3b2 Qb5+ Bd5 Qd3+ Be4 Rb6 Ra7 Qb1 Ra8 Qe1 g1R Qf1 Rg5 Qg2 Rf3 Rf1 Rc8 Qg1 Ra3 Qbc1 Bd5 Kc5 Ke4 Qc2+ Ke3 Qb1 Qee4 Kd6 Kd4 Qd8 Q4g4 Qc7 Be4 Ke7 Bh1+ Kf8 Qge6 Qcg3 Rc4 Qc7 Rcc3 Qc1 Kd3 Rh8 Ne3 Qa1 d1R Qc1 Qc6 Qb1+ Kc4 Kf7 Rdd5 Rhf8 Ned1 Rh8 Kd4 Rhf8 Qhe4 Kg8 Qce6+ Kh8 Rd6 Rg8 Qh7+
1bk2nN1/1n2n2P/pQ2nr2/BR2q1pn/2B1Nn1r/2Q1K3/b1BQ2Q1/5r2 w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 f5 h4 d5 e4 Kd7 c4 g5 h5 d3 h6 d4 b6 f4 b7 a6 c5 f3 e5 f2 b5 Qf6 b6 Bd6 Nc3 Ne7 Nh3 g1N Bg2 Ne2 Ne4 Nf4 Bf1 Ne6 Nf4 g2 Nh5 g1N c6+ Kd8 Ba3 Ne2 Bb4 Nd7 b8Q Ndf8 b7 N2f4 c7+ Kd7 Be2 Qf5 Ba5 f1N+ Kc1 Qf6 Qd2 Ng3 Rg1 Ra7 Qa8 Qf5 b8Q Rb7 Bc3 Rb6 Ba5 Bb7 Bd1 Bd5 Bc2 Ba2 c8B+ Kd8 Nhf6 Ngh5 Ng8 Qf6 Qba7 Bb8 Qc6 Rh7 Qcc3 Qh8 Qg2 d2+ Kd1 Qf6 Bd7 Qf5 Bb5 Rh8 Bc4 Kc8 Re1 Rc6 Qb6 Rh7 B2b3 Qf6 Kc2 d1N Kd2 d3 Bc2 Nb2 Ke3 d2 Rb1 Na4 Rb5 d1R Qgd2 Rf1 Qg2 Nec5 e6 Nb7 Qgd2 Nac5 Qg2 Neg6 e7 Qe5 Qgd2 Nce6 e8Q+ Nbd8 Qf7 Nb7 Qf5 Ne7 Qh3 Rf7 h7 Rf6 Qhg2 Rd6 Qdf2 Rdd1 Qe2 Rh1 Qef2 Rh4 Qfd2 Rf1
Qb1n2r1/2nk1n2/q3b3/Q4q2/p2K2Q1/BR2RrP1/B1nN2pR/n3n2Q w - - 0 1 legal: proof: d4 e5 f4 exf4 h4 g5 a4 gxh4 Nd2 b5 axb5 c5 Ne4 cxd4 Ng3 Bd6 Nh5 Bf8 g3 f3 Nf4 Ba3 Ng2 fxg2 Bg5 Be7 Bc1 Bf8 Kf2 f5 b4 d5 e4 h5 c4 a5 e5 a4 b6 f4 e6 f3 c5 d3 Ke3 d4+ Ke4 h3 b7 h4 c6 d2 b5 d3 c7 h2 b6 f2 e7 h3 Rb1 Kd7 e8R Nc6 b8Q Qg5 b7 Nd8 Rb5 Bd6 Rf8 Nh6 Rb2 Nhf7 Qb3 d1N Ne2 d2 Nf4 Nc3+ Ke3 d1N+ Kd3 Ne3 Re8 Rg8 Re6 Ncd5 Rb1 Nc2 Ng6 Na1 Qb4 Qf5+ Kd4 Ra5 Ba6 f1Q Nh4 Rb5 Qd2 Rb3 Bc4 Rf3 Ba2 Qa6 Qa8 Bf4 b8Q Bd6 Rg1 h1N Ba3 h2 Re3 Nf2 Rh1 Nd3 Qa5 Ne1 Qbb6 Bf4 Qh6 Bd6 Rbb3 Bf4 Rg1 h1N Qh7 Nf2 Rh1 Nfd3 Rh2 N3b4 Qh6 Rf1 Nf3 Bd6 Nd2 Rf3 Ne4 Ke8 Qh5 Be6 c8Q Bb8 Nd2 Nc7 Qg4 Ke7 Qcb7 Ke8 Qc6+ Ke7 Qc1 Kd7 Qd1 Ned3 Qg1 Ne1 Qh1 Nbc2+
RK1kq3/RQ6/R1PN1r2/1Q6/2nBB1bB/4br1b/2qbn1pp/2bbR3 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 h4 fxe4 Nc3 g5 Nce2 gxh4 g4 Nf6 Ng3 hxg3 Rh6 Ng8 Rh2 Bh6 Rh1 Bf8 Kd2 h5 f4 e5 c4 d5 b4 a5 f5 g2 c5 a4 c6 a3 b6 a2 f6 e3+ Kd3 e2 b7 e1B g5 e4+ Kc2 d3+ Kb3 h4 g6 d4 Kc4 h3 Kb5 h2 g7 d2 Bc4 d3 Nh3 e3 Qb3 d1B Bb2 e2 Ng5 d2 Bd3 Nd7 b8Q Nb6 Qb7 Rh6 Be4 Ra3 Bd4 Bf2 Re1 Be3 Nf7 Ne7 g8R Ned5 Rg7 Bh3 Qb1 Qa8 Nd6+ Kd8 f7 Nc4 Qd3 Be7 f8B Rf6 Kc5 Nc3 b5 Qa4 b6 Qc2 Rf7 Rb3 Bh6 Bf8 Bg5 Bh6 Bh4 Ra3 Qa6 Bhf4 Ra7 Bg5 b7 Rb3 Rb1 a1B Qb5 Bb2 Rba1 Bc1 b8R+ Bc8 Rb6 Bh3 Rba6 Bgf4 Qb7 Bh6 Rh1 e1Q R1a2 Qe2 Re1 Bhg5 Ra1 Qh5 Qf1 Bdg4 R1a3 d1B Qe2 Na5 Qeb5 Qe8 Kb6 Ne2 Ra2 Bed2 Ra1 Bge3 Ra8+ Bc8 Ka7 Nc4 Kb8 Bcg4 R1a4 Bg5 R6a7 Rbf3 R4a6 Bge3
2R5/1R3NQb/rpn2rP1/Q2K4/Br1b4/4p1nn/4BknQ/rnRq3R w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Bd7 Bb2 Bc8 Na3 Kd7 Be5 Ke8 Bf4 h6 Nc2 gxf4 g5 h5 Ne3 Nc6 Ng4 hxg4 Qc1 Nb8 Qc2 Kf7 Qd1 Ke8 Kf2 Kd7 a4 Kd6 h4 Kc5 f6 Kd4 a5 c5 d6 e5 h5 e3+ Kg2 f3+ Kg3 c4 h6 f2 d7 c3 a6 e4 Kf4 b6 d3 b3 h7 e2 f7 e1N a7 c2 Be2 c1R Qd2 g3 Qa5 b2 Nh3 Bc5 f8Q b1N Qg7+ Nf6 g6 g2 Ng5 g1N Kf5 Ke3 Ke6 f1R d4 Nh3 d5 Ng2 d6 Kf2 Nf7 Nh5 Kd5 Rf8 h8Q e3 Qhh6 Rc4 Qhh7 Nc6 Qhh6 Qe7 d8R Ng3 Rd7 Rb4 Rb7 Bd4 d7 Qf6 d8R Qf3+ Kd6 Be6 Rc8 Qf5 Qh5 Qc2 Qhe5 Qd1 Qh5 Nc3 Rc1 Nb1 Qhh7 Ng1 Qh2 Nh3 Ng5 Bg8 Nf7 Bh7 Kd5 Rb8 a8B Rg1 Rbc7 Rf1 Bb7 Ra8 Bba6 Re1 Bab5 Ra6 Rb7 Rf1 Ba4 Rg1 Nd6 Rf6 Nf7 Re1 Bd3 Re2 Bc4 Ra2 Be2 Ra1
3bk1nN/b1nq3p/B2nB3/3RQbr1/p1n3b1/r1R4K/2P1Q3/4nBRR w - - 0 1 illegal: No possible last move, all moves rejected
nNQR4/2NN1K2/nnbk3b/1q1r4/P3pr1R/N1RQp1r1/b3n3/2r1B3 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 gxf4 g4 d5 cxd5 h5 g5 f5 Bh3 fxe4 Bg4 hxg4 Kf2 Kd7 d4 e5 a4 c5 h4 b5 g6 c4 d6 e3+ Ke2 g3 Kf3 c3 Kg4 g2 Kf5 f3 g7 f2 Kg6 f1R d5 b3 h5 e4 h6 b2 h7 b4 Qb3 c2 Nh3 g1N Qc3 b3 Nd2 b1B Nf2 b2 Ng4 Rf5 Qd3 Ba2 Nb1 Bb7 Rh4 Qb6 Na3 b1N Bd2 c1R Be1 Nf6 g8Q Bh6 Kf7 Bc6 Qf8 Rg8 h8R Ne8+ Nf6+ Kd8 d7 Kc7 d8N Rg3 Qg8 Na6 Ne6+ Kd6 Nc7 Nd2 Qg4 Rg5 Qc8 Ne2 Nd7 R5g4 Rb1 Qa5 Rb3 Nc4 Rc3 Rb8 Rf8 Rb5 Rg8 Nb6 Rh8 Ng7 Rd8 Ne6 Nf8+ Ke5 d6 Rd5 d7 Qb4 Re8 Qc5 d8N Qb5 Nd7+ Kd6 Rh8 Ba8 Nc6 Bb7 Na8 Nec7 Ncb8 Bc6 Rf8 Nc4 Nab6 Na8 Rd8 Rd4 Nd5 Ncb6 Qc4 Rdd1 Nc7 Rd5 Qd3 Rf4+
b4N2/B1r1B2b/n1p2r1k/4r3/3Qbn2/1q2pB1B/2Q1nb1P/1rR1R1RK w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 g5 e4 b5 axb5 Qd3 g4 h6 Nc3 Qf3 Nd5 Qxe4+ Ne3 gxf4 g5 Qd3 Ng4 h5 Qa4 hxg4 Kd1 Qe3 Kc2 Qe2 Qb3 Qe6 Qf3 Qe1 Qd1 Qe2 b4 e5 g6 a5 g7 f5 b6 Kf7 b5 Kg6 b7 g3 b6 a4 Bh3 c3 Ra3 e4 Bg4 f3 Bh5+ Kh6 Bg4 f4 Bf5 f2 Nf3 f1B Qe1 g2 Bd7 g1N Ne5 f3 Ra1 f2 Ba3 Nf6 g8B Qe3 Kd1 Nd5 d4 Bd3 Rc1 f1B Bh3 Bc5 Qd2 Ne2 Ke1 c2 Rg1 Bg2 Nd7 Ndf4 d5 Na6 b8B Bb7 Ba7 Rf8 d6 Rf6 Nf8 Ba8 d7 c6 d8R Rh7 b7 Rc7 b8Q Bh1 Bb4 a3 Kf1 a2 Bd5 a1R Re8 Rb1 Qb6 Qg3 Qd1 Bf2 Be7 Qf3 Qd4 e3 Rd8 Bh7 Be4 Qg3 Bf3 Qg8 Q1d2 Qa2 Re1 c1R Qc2 Rb5 Rb8 Re5 Rb1 Rd1 Rc1 Qe6 Bfg4 B1e4 Bf3 Nh5 Kg2 Nhf4+ Kh1 Qd5 Ra1 Rb1 Rc1 Qb3 Rce1 Rb2 Rac1 Rb1
n4kBb/1Rn3p1/1r3nB1/pRnrQb1P/B1b5/2K4R/1QN2r1q/3B2b1 w - - 0 1 illegal: Other
q2nq1Rn/Bb6/2Qnb3/2R2b2/N1nNpNPK/3p3r/R2r1Nbk/4Q3 w - - 0 1 legal: proof: f4 a5 e4 c5 d4 cxd4 b4 axb4 f5 g6 e5 Bh6 e6 Bf4 g4 Bg3+ hxg3 fxe6 f6 e5 Bc4 e4 Be6 Kf8 Bf5 gxf5 Ne2 Kf7 Ng1 Ke8 Kf2 Kf7 a4 Kg6 c4 h5 a5 d5 a6 b5 g5 e5 g4 h4 f7 h3 Kg3 e3 f8Q b3 c5 d3 c6 b2 a7 d2 c7 e2 Qa3 e1Q+ Kf3 b4 Qc2 d1N Nc3 b1N Qe2 b3 Na4 f4 Nb2 d4 Qf8 h2 Qf2 Nd2+ Kg2 f3+ Kg3 Nc3 Nh3 Ne7 Rb1 Be6 c8N Nbc6 Ng1 Nc4 Nd3 b2 Bf4 Nb5 Ne2 Nbd6 Rc1 b1B Be3 Rh6 Rf1 h1B Nb6 Qa5 Qh8 Qe8 Qe1 f2 Nd5 Rd8 a8N Rh2 Rg1 f1B Nf2 Bfg2 Nab6 Qa8 Na4 Bbf5 Qh3 Rd7 Kh4 Nd8 Rf1 d3 Ba7 Rb7 Ra1 Rb2 Ra2 Rc2 Nd4 Rd2 Ndc3 Bb7 Nce2 e4 Rg1 Bg2 Nf4+ Kf7 g6+ Kf6 g7 Ke5 g8R Ng6+ Kg5 Nh8 Qh6 Rh3 Rh1 Re3 Rh5 Rh3 Qg6 Qf8 Qe8 Qf7 Qd7 Qe8 Qc6 Bg6 Nd5 Bh7 Ne7 Rf3 Kh4+ Kf4 Rc5 Bhf5 Nb3 Rg3 Ng6+ Kf3 Nf4 Rh3+ Kg5 Kg3 Nd4 Rd1 Rc2 Kh2 Ra2 Rf3 Kh4 Rd2 Kg5 Re3 Kh4 Rh3+
N4Q1n/1q6/K1n1Rb2/3R1q2/2P2qN1/3pq1Q1/n2pRrnN/BRrk1b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 h4 g5 b6 a5 Kb5 d5 c4 f5 e3 d3 b7 a4 h5 d2 h6 Kd3 h7 g4 e4 d4 e5 a3 e6 a2 e7 f4 e8N f3 Na3 f2 Rh2 f1Q Bb2 Qf4 Nb1 Be7 Qe2+ Kc2 Rh1 d3 Nf6 Nh6 Nh3 g1N Ba3 g2 Qf3 g3 Nf2 Qdc7 Rh2 Bh3 N6g4 Rf8 h8Q Nc6 b8R Nf7 Bb2 Bf6 Rb6 Qb7 Nc3 Ne2 Rb1 a1Q Nd5 g1N Nc7 g2 Qg3 Nf3 Qh6 Qa3 Ba1 g1Q Qg7 Rae8 Na8 Ne1 Rg2 Qb3 Nh2 Nc1 Nfg4 Kd1 Re2 Nh8 Qf7 Qd7 Ka6 Bf1 b5 Qdf5 Qe7 Qge3 Qg7 Ne7 Re6 Nc6 b6 Ng2 b7 Rf7 b8R Ree7 Rb2 Na2 Rd8 Qbb8 Rd5 Rb7 Rc2 Rb1 Rb2 Rc1 Qf8 Qbc7 Rb6 Qb7+ Kb5 Qfb8 Re7 Bg7 Qc7 Qfe6 Qg3 Rf2 Re8 Qf5 Re6 Nd4+ Ka5 Bf6 Rbb5 Qbf4 Rb1 Qb2 Ka6 Nc6 Ne5 Qb4 Neg4 Qb7+
1B4Qq/1R6/q5rr/k1Kb2nN/2ppQ2N/5B1n/b1qPb1B1/Qb1B2q1 w - - 0 1 legal: proof: f4 a5 b4 axb4 g3 f5 c3 bxc3 Qb3 e5 Kd1 exf4 Kc2 f3 Kd3 f2 Qd1 Be7 Kc2 Bf8 a4 h5 Ra2 f4 Rb2 f3 Rb4 Bd6 Rg4 Bf4 gxf4 hxg4 Kb3 g5 Kc4 c5 e4 d5+ Kb5 Kd7 h4 Kc7 a5 d4 h5 c2 e5 g3 f5 g4 a6 g2 e6 g3 f6 Nc6 h6 Ne5 a7 Nf7 e7 Be6 e8B Ng5 h7 Bd5 f7 Ne7 f8Q Ng6 Rh4 Nf4 Nh3 g1Q Qf6 g2 Bb2 c1Q Qg6 Qc2 Qe4 b6 Be2 f1B Bc6 f2 Ba3 c4 Bh5 Bd3 Nc3 f1B Qa1 Bfe2 Nd1 Rc8 Kb4 b5 a8B Kb6 Ne3 Qe1 Nf5 g1Q Bcb7 Rc6 Bg4 Rg8 h8Q Rgg6 Rh7 Qf6 Qc8 Qh4 Qg8 Qh8 Rd7 Q4h6 Nh4 Rce6 Bc6 Ka6 Kc5 b4 Rb7 b3 Bf3 b2 Ba4 b1B Bg2 Ka5 Bb3 Qc3 Bd1 Ba2 Bf3 Bdb1 Bg2 Nh5 Nf4 Qc2 Bf3 Nf6 Nh5 Nfh7 Bg2 Nh3 Bf3 N7g5 Bb4+ Ka6 Ba5 Rd6 Bc7 Rb6 Bb8 Ka5 Ba7 Q6g7 Bb8 Qf6 Rh7 Rd6 Bc6 Qe6 Rb7 Rh6 Bg2 Qc8 Bf3 Rdg6 Bg2 Qe6 Bd7 Qef6 Bg4 Qe6 B4f3 Qa6
1Q1Q3q/n2r2rB/kpqb1p2/nb1qQ3/1R2b1qQ/6R1/N3RKP1/4bB2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 e5 d5 cxd5 f6 f4 Nc6 f5 Nb8 Bb2 Na6 e6 Nb8 Be5 fxe5 f6 Nc6 Nc3 Nb8 Ne4 Qd6 f7+ Kd8 Nf6 exf6 Qb1 Ke7 Qd1 Qd8 a4 Kd6 d4 c5 a5 Kc7 a6 Kb6 d6 h5 a7 b3 d5 e4 d7 b2 d6 b1B e7 e3 e8Q e2 Ra3 h3 Qd5 h2 Rg3 h4 Qde4 c4 Nf3 c3 Qf5 h3 Rg1 h1Q Qfe4 h2 Q8e5 c2 Qb4+ Ka6 Rg5 c1Q+ Kf2 b6 Nd4 Rh7 Rf5 Ne7 Rf4 Qc6 Nb3 Be4 Nc1 Rg7 Na2 Bb7 Rg4 Nc8 Rg3 Bd3 Qg4 Bb5 Qh4 Be7 f8Q e1B+ Ke3 Rg8 Qe8 Rg7 Qeh8 Qg8 d8R Qgd5 d7 Bf8 Re8 Bd6 d8Q Rd7 Be2 Rg7 Rf1 Qg1+ Rf2 h1Q Bf1 Qh3 Qf8 Qgh2 Rf4 Qg4 Rb4 Qh1 Qhg5 Qh8 Qh4 Nd7 Qg8 Nc5 Re7 Rb8 a8B Nb3 Re6 Na5 Qgf8 Bc3 Kf2 Na7 Qfe8 Rc8 Qg8 Rcc7 Qb8 Rcd7 Qgd8 Qcc4 Re8 Qf7 Re7 Be4 Bd5 Qfh5 Bg8 Qc6 Bh7 Qf7 Qf5 Qfd5 Re5 Bb1 Re2 Be4 Qe5 Be1+
k1rKbN2/B4p1n/1r3Br1/pb1n2qP/n1B2q1Q/r7/1R1QBQ2/N3n3 w - - 0 1 legal: proof: h4 b5 d4 e5 b4 c5 a4 bxa4 f4 exf4 h5 cxd4 g3 Be7 Ra3 Bh4 gxh4 h6 Rg3 Na6 Rg2 Nb8 Rg5 hxg5 Kd2 a5 Kd3 d5 e4 Kd7 c4 Kc7 b5 Kb7 e5 f3 e6 a3 c5 g4 b6 g5 h6 f2 e7 g3 e8B g4 h7 g2 h5 a2 Bf4 a1R Bg5 g3 Be2 f1B Be3 Bd7 Rh3 Ne7 Rh2 Ra6 c6+ Ka8 Nh3 g1N c7 g2 c8Q Nf3 Qc5 g1R Qd2 Rg6 Nf4 Ra2 Ne6 Ra3+ Qcc3 Ba4 Bb5 Nd7 Nf8 Nf6 Bc4 Be8 Qb2 Qc7 Nd2 Qf4 Nb3 Qg5 Na1 Ne1+ Kd2 Rhg8 h8B Nh7 Bf6 d3 Rg2 d4 b7+ Kb8 Qcb4 Rb6 Qd6+ Ka7 Qf4 Nd5 Qh4 Qf4 Rf2 Bh3 Rh2 Bhd7 Qc2 Bb5 b8Q+ Ka6 Qd6 Kb7 Qd7+ Ka8 Qf5 Qg5 Qff2 Qf4 Kc1 d2+ Kb2 d1Q Qd2 d3 Bc5 Rd6 Ba7 Rb6 Rg2 Ra4 Rh2 Qc1+ Kb3 Qg5 Qc3 d2 Rg2 d1N Qd2 Nb2 Rh2 Qb1 Rg2 Ne3 Kc3 Rh8 Kd4 Nd5 Kc5 Qe4 Rh2 Ra3 Rg2 Rb8 Kd6 Na4 Rh2 Nb4 Kc7 Rb6 Kd8 Qef4 Rh3 Nd5 Rb3 Rhg8 Rb2 Rh6 Be7 Rhc6 Bf6 Rg6 Ne6 Rc5 Nf8 Rc8+
1N1RR1r1/1Pn1qRb1/K7/Qn2Q2R/1B3B1q/1bQb1k2/1rpb2p1/2n4n w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 g3 h6 Bg2 h5 Bf3 Qg5 Nc3 Qd8 Ne4 Qd6 Nf2 gxf3 g4 Qd7 g5 Qd8 Ng4 hxg4 h4 Ke7 d4 Ke6 Kd2 Kd5 Kc3 Ke4 b4 a5 e3 f5 h5 c5 d5 a4 d6 g3 b6 f2 b7 f1B g6 f3 b5 a3 h6 f2 d7 f4 h7 f3 b6 a2 g7 g2 Qe2 Na6 b8Q Qe7 d8R Nf6 g8Q Ne8 b7 Bh6 Rh2 Nec7 Qe8 Rg8 h8B Be6 Qc2+ Bd3 Qa7 f1N Rh5 f2 Ne2 Kf3 e4 Ng3 e5 f1Q Bf4 Qf2 Rf1 a1B+ Qb2 Bf7 e6 Nh1 Bg7 Bg5 Bf8 Bh6 Qb6 Ra7 Qa5 Nb5+ Kd2 Nac7 Qbc3 Qg5 e7 Ra6 Qd7 Rb6 e8R Qe7 Qe6 Bb2 Qf5 Bg7 Qfe5 Bc1+ Kd1 Bd2 Nd4+ Kg4 Nc6 Qfh4 Nb8 Bd5 Qcd4 c3 Rf2 c4 Qc5 Bb1 Ke2 c2 Qce3 c3 Kd3 Bb3 Rf1 Ba4 Kc4 c1N Rf2 Bh7 Rf3 c2 Q3c3 Qa3 Bb4 Bb3+ Kc5 Bg6 Bg5 Be4 Rf7 Bd3 Bf4 Kf3 Qa6 Rd6 Qa5 Rd5+ Kb6 Rd4 Bc5 Rb4 Bd6 Bc4 Be7 Rb2 Bb4 Bb3 Bf8 Na8+ Ka6 Qc5 Be7 Qc7 Ba3 Qce7 Bb4 Nac7+
1q1b1B1n/rNr1R1Bq/1QQ3p1/N1Q5/qB4p1/n4Pn1/2qr4/1k1Bq1K1 w - - 0 1 legal: proof: a4 a5 d4 f5 e4 fxe4 b4 axb4 Ra3 c5 Rg3 cxd4 Rg5 b6 Rg6 Ba6 Rg4 h5 f3 Be2 f4 Bf3 gxf3 hxg4 Kf2 Kf7 h4 Kf6 c4 e5 h5 d5 a5 b5 h6 b3 a6 g6 a7 d3 c5 b4 f5 b2 c6 d4 h7 e3+ Kg2 d2 c7 d3 c8Q e4 Kh2 Ke5 f6 Kd4 f7 e2 Kg2 e1Q Qa6 e3 Qc6 b3 Qc8 e2 Rh5 Be7 f8B Nc6 Qf5 Qb8 Qf6+ Ne5 Kh2 Bd8 Bg2 Ne7 Qc2 d1Q Nc3 b1Q Ba3 d2 Ne4 b2 Bf1 Nf5 Nc5 Ng3 Qb6 Nf7 Re5 Rg8 h8B Rg7 Qc1 Qbc2 Re7 Kc3 Nb7 b1N Bb4+ Kd3 Kg2 Na3 Kh2 Qa4 Qcc5 Qdc2 Kg2 Rh7 Bhg7 Qeb1 Kf2 d1R Kg2 Qc7 Kf2 Rc8 a8Q Nh8 Kg2 Rd2 Kf2 Qad7 Qa4 Qb8 Qac6 Rc7 Kg2 Qc4 Kf2 Kc2 Kg2 e1Q+ Ne2 Qa1 Kg1 Kb1 Nc1 Qb2 Nb3 Qbc2 N3a5 Qg8 Qe4 Qa4 Qec6 Qee6 Be2 Qee4 Bd4 Rf7 Bd1 Qh7 Bdg7 Qe5 Nd6 Ra7 Ndb7 Qe2 Re4 Rc7 Re7 Qe1+
NR6/1bb2nr1/3P2R1/1n1bpB2/1k1B2nQ/1q2R3/p2R1nn1/1BKQq1q1 w - - 0 1 legal: proof: g4 a5 e4 d5 h4 g5 c4 dxc4 f4 f5 h5 Ra6 Nc3 Rb6 Nce2 fxe4 f5 Rg6 Nf4 gxf4 hxg6 b5 a4 bxa4 g5 Qd7 Rh3 Qd4 Rh1 Qd8 d4 Kd7 Kd2 Kc6 b4 Kb5 g7 c5 g6 h5 f6 e5 d5 e3+ Kc2 h4 f7 e2 Bb2 e1N+ Kb1 h3 Qf3 a3 Qe4 a2+ Kc1 f3 Bc3 f2 Bg2 f1N Qe3 a4 Nf3 h2 Qd2 a3 Qd4 Ne3 Rb1 a1Q Ng1 a2 Qf4 Rh7 Qh4 Nh6 g8B Nc6 g7 Qb6 Ne2 Nd4 Nf4 Neg4 Bh3 Bb7 Ne6 Bd6 f8Q Bc7 d6 Ng2 Rd1 h1B Qf1 Nf7 Rd2 Ka4 Bb2 c3 b5 c4 Qd1+ c2 Bc3 Bd5 Bb2 Qb8 b6 Nb5 Bd4 Qc3 Ra1 Kb4 b7 Qb3 Rb1 Qa7 b8R Qc5 Rb2 Qa7 Rd3 Qa5 Re3 Qa7 Kd2 c1N Rc2 Nd3 Rb2 Ngf2 Bf5 Ng4 Rc2 Ndf2 Kc1 c3 Rd2 Bb6 Bb1 c2 Nc7 Ba5 Na8 Bc7 Rb7 Qc5 Rb8 Qcc3 Rdd3 Qe1 Rd2 Nd8 Be6 Nf7 g8R Rg7 Bf5 Qd3 Kb2 c1Q+ Ka1 Qc5 Kb2 Qb6 Kc1 Qb3 Qe7 Bb7 Qh4 Nh3 Rbd8 Rg6 Rb8 Ngf4 Ree2 Bhd5 Bb2 Qbg1 Re3 Nhf2 Bd4 Ng2 Rg7 Rh6 Rgg8 Rh7 Rg6 Rg7
b2n4/2R1PNQ1/1r6/n3nqK1/Q1nkp3/4NpnQ/Nqq1rNR1/3B3r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 h5 dxe4 h6 c5 Rh3 gxh6 Rh4 h5 Rh1 h4 f4 e5 Rh3 c4 Ra3 e3 Rb3 e4 Ba3 Bd6 Bb2 Be5 fxe5 Bd7 Rd3 c3 Rd6 cxb2 Rf6 Kf8 Rf3 Bc8 Rh3 Ke7 Rh1 Ke8 Ke2 Ke7 d4 Ke6 g4 Kd5 a4 f5 c3 b5 a5 h5 g5 b3 e6 f4 g6 b4 g7 h3 e7 f3+ Ke1 e2 Kf2 e1N Ke3 h4 Kf4 h2 a6 h3 a7 Qf8+ Kg5 Nh6 Be2 Nc6 Ra2 Rb8 a8N Rb6 g8Q+ Be6 Qf7 Nd3 Qg7 Na5 Nc7+ Kc4 Qc2 Bd5 Bd1 Ba8 d5 Ne5 d6 Qf7 d7 Qf5+ Kh4 Rhb8 d8N Nhf7 Nd5 Kc5 c4 Kd4 Nbc3 b1N c5 b2 c6 b3 c7 Nd2 c8Q b1Q Qe6 b2 Ne3 Ndc4 Qa4 Qc2 Qeh6 b1Q Qh5 Qcb3 Rg2 Q3b2 Na2 Q1c2 Qhg4 Nd6 Qh5 Ndb7 Nf7 Nd8 Ne2+ Kc5 Nec1 Kd4 Nd3 Rc8 Re1 h1N Nf2 h2 Qhg4 Rc7 Qh3 Ng3 Re2 h1R Rd2+ Kc5 Rd7 Rcc6 Rb7 Rd6 Rd7 Rd2 Ra7 Kd4 Rc7 Qe6 Kg5 Re2 Nc3 Qc8 Na2 Qf5+
2b2qQb/qN2P3/1Q4rq/q1NQ1bp1/5KB1/1q2n1B1/Rr1r2p1/Q3B2k w - - 0 1 illegal: No possible last move, all moves rejected
2B1r3/2p5/b1QQPKN1/bqB2rRq/1b6/4rbRR/n4bpR/B4qk1 w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 h5 Nc3 f5 Ng1 f4 Ne4 Nc6 Nf2 Nd4 Bg2 Qd5 Bf1 Nf5 gxf5 Qd8 Ng4 hxg4 Kf2 Kd7 h4 Kc6 a4 Kd5 e4+ Kd4 d3 g5 h5 b5 f6 b3 e5 g3+ Ke1 f2+ Ke2 b2 Kf3 b1B e6 g4+ Ke2 b4 f7 g2 h6 g3 Kf3 c3 Kg4 c2 Kf5 f3 a5 b3 h7 b2 a6 Nf6 a7 Qe8 Ra6 Ne4 Ra3 Nc3 Rh3 Ba6 Kf6 Bb4 f8B Na2 Rc3 Rd8 a8Q Qh5 Qc6 Re8 Bg7 Rhg8 h8R Ba5 Bf4 c1B Bd6 Ke3 Ne2 g1B Nf4 g2 Ng6 Bd2 d4+ Bbd3 d5 b1Q Ba3 Qb5 d6 Bb4 Rc5 Be4 d7 Ba5 d8R Bdb4 Bd3 f1R Rg5 Kf2 Rgg3 Re1 Rd5 Re3 Rdg5 Bd5 Be2 Be4 Qdd6 Ref8+ Ke7 Rf5 Ba1 Bd5 Bd3 Rc8 Be4 Kf1 Rh2 Bf2 Bd3+ Kg1 Be2 Rfe5 Kf6 Re8 Rhh3 Bfe1 Rh6 f2 Bf3 f1Q Rh2 Qg4 R6h3 Bf2 Be2 Bf3 Bd3 Bbe1 Bc5 Beb4 Bc4 Qh5 Be2 Qa4 Bd3 Bc8 Ba6 Qab5 Bb7 Rd5 Ba8 Ba6 Bb7 Rde5 Bc8 Rf5+
5nqr/rN4n1/Brp5/1p2q1kq/1qN5/B2QN1P1/4q2Q/Q1QKb1qR w - - 0 1 illegal: No possible last move, all moves rejected
3BQ2b/1k5n/b1r5/2QbRrbb/1B1PrNB1/4b1np/1p2Q2b/Q5NK w - - 0 1 legal: proof: c4 f5 b4 d5 f4 dxc4 e4 fxe4 b5 g5 f5 a6 a3 axb5 Qb3 b4 Qa4+ Nd7 Qd1 Nb8 g4 Be6 h4 Nf6 a4 Qd3 h5 Qd6 Ra3 Qb6 Rf3 Bc8 Rf4 gxf4 g5 Qa6 Qc2 Ng8 Qd1 Qg6 hxg6 Ra5 Rh4 Ra7 Rh1 Ra8 Kf2 Kd8 Kg2 b5 d4 e5 f6 h5 g7 c5 a5 Kc7 a6 h4 g6 b3 a7 b2 f7 c3 Qh5 e3 Ne2 h3+ Kh2 e4 Qh7 b4 Bd2 c4 Na3 b1B Ng1 e2 Qh5 e1R Qe2 f3 Qg2 e3 Qe2 b3 Qg2 f2 Qe4 b2 Nc2 e2 Nf3 Rh6 Qd3 Nc6 Na1 c2 Qc3 c1B Ne5 Nb4 Be3 Ba2 Nb3 Bg4 Nc5 Nf6 g8Q Bh5 g7 Nbd5 Qa3 c3 Qh7 c2 g8Q Bg7 Qe4 Bh8 f8B Nh7 Ne6+ Kb7 Bb4 Rf8 Nf4 Rf5 Nf3 Rc6 Qge8 Bb3 Bed2 Ne3 Ng1 Bd5 Bg2 f1B a8Q+ Kc7 Q8a5+ Kb7 Bdc3 Bd2 Qa1 c1B Q4e6 Nc4 Qe5 Be3 Qc5 Nd2 Ba5 Ne4 Bf3 Ng3 Ne6 Bg5 Bcb4 Bce3 Qe4 Rb1 Bb6 e1B Bd8 Ba6 Bg4 B1d2 Qec2 Re1 Nf4 Bc1 Qe2 Bcd2 Ba3 Ba5 Bb4 Bc7 Nf3 Bb8 Rf1 Bd6 Ng1 Bde5 Rf3 Nf1+ Kh1 Bd6 Ng2 Bc7 Rf4 Bb8 Re4 Bh2 Re5 Bc1 Qd3 Re4 Nf4 Be3 Qe2 Ng3+
2B5/1rqnqRB1/2q1rQ2/kq1pb3/2R2r1P/1B2p2Q/Br2KnN1/1qQ5 w - - 0 1 illegal: No possible last move, all moves rejected
6q1/8/Q1R2Q1B/Pr1Qr1n1/n2p3n/1B1p3r/nK1k2Bq/n2bNQrR w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 g3 cxd4 Nf3 e5 Ng1 exf4 Kd2 f3 Bb2 f2 Ba3 h5 Nc3 f5 Bc1 f4 Nd5 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 c4 Kf7 Kc2 Ke6 e4 b5 h4 d5 a4 g5 f5+ Ke5 a5 b3+ Kb1 d3 h5 Kd4 c5 Kc3 h6 b2 h7 b4 f6 g3 e5 g4 e6 d4 e7 g2 e8Q g3 f7 Ne7 f8Q Nd7 c6 Nf5 c7 Nb6 Qb5 Nh4 Qd5 Bg4 c8B Na4 Qff7 Qg8 Ka2 b1N Bd7 Re8 Qb7 Re5 Nh3 g1N Bc6 g2 Nf4 Nh3 Bd5 g1R Ng6 Ng5 Be2 f1Q Qe6 f2 Qea6 Qg2 Bf1 Qh2 Bg2 f1N Bb3 Ne3 Nf4 Nc2 Qf1 Bf3 Qd5 Bd1 Bb2+ Kd2 Ba3 Nc5 Kb2 Nc3 Rb1 Na2 Rc1 Na1 Rc4 Nd7 Rc6 Nb6 Ba4 b3 Bf8 Qh3 Bh6 Qg3 Bf3 Qh2 Ng2 Re6 Ne1 Re5 Ka3 b2 Bg2 b1R Bb3 Rc1 Kb2 Rc5 Qa7 Rb5 Qb7 Qb8 Qa6 Na4+ Ka3 Rf8 h8Q Rf3 Qf8 Rh3 Q8f6 Nb6 Kb2 Qc8 Qe7 Qg8 Qef6 Na4+
5b1r/3rnQ1b/rk2N3/p3Q3/3p2Q1/b3rP1q/B1K1Nq1N/NrR2b1R w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 e5 bxa4 Be3 h6 Bg5 hxg5 f3 Nc6 e6 Ne5 f4 Nf3+ gxf3 fxe6 Qe2 e5 Qd1 e4 Kd2 e5 c4 a5 h4 d5 b4 Kd7 f5 Kc6 h5 e3+ Kd3 e2 h6 e1R b5+ Kb6 f6 g4 f7 g5 h7 g3 Nd2 g2 Qb1 e4+ Kc2 e3 Kd3 g4 Ra3 e2 Qd1 g3 Qb3 Ne7 Kc2 Rb1 Ra1 e1R Ne2 g1B Qa2 g2 Nb3 Rbd1 Rc1 a3 Na1 Ba6 Qb3 a2 c5+ Ka7 c6 Qc8 c7 Qh3 c8Q Kb6 Qg4 d3+ Kb2 d2 Kc2 Bc5 Qbc4 Bg7 f8N g1Q Ne6 Bf8 Qcf4 Qf2 Qf7 Rg8 h8N Ba3 Ng6 Rh8 Ne5 Ra7 Ng3 Re3 Bc4 Rd7 Ne2 d4 Qgh5 Rg1 Ng4 Rg2 Nh2 Rg6 Qg4 d1B+ Kd2 Bc2 Bb3 Kb7 b6 Rgh6 Bc4 Bh7 Bb3 Rg6 Kc2 Kc6 b7 Kb6 Bd5 Bc4 Nb3 a1R b8Q+ Ka6 Qe5 Rb1 Na1 Kb6 Kd1 Bb5 Ba2 Ba6 Nc3 Bf1 Ne2 Ra7 Kc2 Ra6 Qef4 Rg5+ Qe4 Rd5 Qef5 Rd7 Qfe4 Nf5 Qe5 Ne7+
r2QBBkb/Bn1n4/3bbbPR/2pQ4/1B1b3K/2Q1q1R1/n2p1nqN/8 w - - 0 1 legal: proof: d4 a5 c4 d5 g4 dxc4 b4 axb4 g5 e5 g6 fxg6 d5 g5 Qd3 g4 Qd2 Qe7 Qd1 Qd8 h4 g5 Qa4+ b5 Nd2 g3 Ndf3 g4 Nd4 exd4 Qd1 Ra6 Qa4 Rg6 Qd1 Rg5 hxg5 Ke7 Bd2 Kd7 Bc1 Ke8 f4 Kf7 a4 h5 e4 c5 d6 c3 d7 c2 a5 g2 Kf2 g3+ Kf3 h4 Kg4 h3 f5 d3 f6 b3 a6 b4 e5 d2 a7 h2 a8Q b2 Qa5 b1N Qe1 b3 Qa2 Qe8 Qe3 Ne7 g6+ Kg8 e6 b2 d8B Nec6 Qg5 Na5 Qgd5 Nd7 Qd6 Nb7 Qb3 Nc3 Qdd5 b1Q Bb6 Na2 Nf3 g1B Bb5 g2 Ba3 c1B Bb4 Bd6 Ba7 Bd4 Qc3 g1B Kg5 Qe4 f7+ Kg7 f8B+ Kg8 Ba4 Bb2 Rc1 Bgf2 Rcg1 Qe3+ Kg4 Bh4 Rg3 Bhf6 e7+ Qf7 e8Q Qfe6+ Qf5 Qd5 Qd8 Qc6 Ng5 Qg2 Nf3 Nb6 Be8 Be6 Ba5 Nd7 Bb4 Bf7 Qd5 Ba1 Rf1 h1N Nh2 Be6+ Rf5 Bf7 Rh5 Be6+ Qf5 Bb2 Rh6 Nf2+ Kh5 Ba1 Qd5 Qe1 Qb8 Bh4 Qc2 Bg7 Be7 Bad4 Qc3 Qe3 Qc7 Bge5 Bf7+ Kg7 Qc8 Rd8 Be8 Kg8 Bf8 Bh8 Qc7 Rc8 Qa5 Bh4f6 Qd8 Bfg7 Kh4 Ra8 Qc8 Bge5 Qd8 Bef6+
1N3Q2/Kr3Nq1/BQ1p3N/2pQ2qR/RP4nr/3q2Q1/qnk3n1/q3b1n1 w - - 0 1 illegal: No possible last move, all moves rejected
1n1bBQ2/qnQ3pq/R1bB1p2/3Q1qr1/R2n1q2/6Pn/n2N2Q1/k1B3K1 w - - 0 1 legal: proof: b4 a5 d4 h5 f4 c5 a4 cxd4 f5 b5 f6 h4 g3 h3 Na3 exf6 Bg2 f5 Bf1 f4 Nc4 Ra6 Ne3 Rd6 Ng2 hxg2 Be3 Rd5 Bd2 axb4 Bc1 b3 Kd2 b4 Ke1 Rb5 axb5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Ke7 e4 Kd6 h4 Ke5 c4 d5 b6 f6 c5 f3 c6 b2 h5 b1Q h6 d3 h7 Kd4 b7 Kc3 c7 b3 e5 d2 e6 b2 e7 d4 e8Q d3 Qda4 d1N+ Ke1 Qd4 Qd8 Be7 Rh3 Bd7 c8Q+ Bc6 Rh2 Qa7 Qb6 Nh6 Bf4 Nf2+ Qd1 Nf5 Bg5 Nd6 Be2 Bd8 Qd7 Re8 h8Q Re5 Bf4 Rg5 Qdh3 Qc2 Ra4 b1Q Qc7 Kb2 Ra6 Qc4 Bd2 Qf4 Qf8 Qc2 Bc1+ Kb1 Rb6+ Ka1 Qd2 Qb1 Qe6 Qf5 Rh4 Qh7 Rg4 Qb5 Bd1 Qbf5 Ba4 Qf4 Ra6 Qff5 Ne2 g1N Nd4 Ne2 Kf1 Qf4 Qc2 d2 Qd5 d1N Qd2 Ndc3 Nb3+ Kb1 Bb5 Nd4 Kg1 Na2 Qe2 Qff5 Nd2+ Ka1 Qf1 Nd7 b8B Nb7 Qce5 Qf4 Bd6 Nb8 Qg2 Ne4 Rh4 f2+ Kh1 f1Q+ Kh2 Q1f3 Kg1 Nf2 Qee7 Nb3 Qc7 Qff5 Rha4 Nd4 Be2 Qe3 Bh5 Qef4 Be8 Nh3+
1r1Rbb2/rQ1p1P1q/4Q2B/k3q1b1/2BbN2Q/4Nr2/K1r1pb2/1n3NQ1 w - - 0 1 legal: proof: f4 c5 e4 f5 d4 cxd4 g4 fxe4 a4 h5 b4 a5 f5 axb4 g5 Nc6 Ra3 Ne5 Rg3 Ng4 Rg2 N4f6 Rg4 hxg4 gxf6 Qa5 Ne2 Qb6 Ng1 Qd8 Kd2 g5 h4 Bh6 c4 b5 Kc2 e5 Kb2 g3 a5 g4 c5 b3 h5 g2 c6 g3 a6 e3 a7 e4 c7 d3 Qe1 d2 Qf2 d1R Bd3 b4 Ba6 Bb7 c8N Bd5 Nb6 Rf1 Nf3 g1B Nc3 g2 Rh3 Ne7 Nba4 Qb8 f7+ Kd8 f8Q+ Kc7 f6 Bf7 Bd2 Nd5 Qe7 Rc8 Nd1 e2 Ne3 e1B Nd1 e3 Bd3 e2 Ba6 Nc3 Bg5 Bd2 Nc5 Kb6 Qe5 Ka5 Qe6 Qe5 Nh2 Bf4 Qd4 Rf3 Nf1 Bd2 Qdg4 Bf2 Rh2 Bg7 h6 Bd4 h7 g1B h8Q Bgf2 Qg1 Rc6 Rh7 Bd2e3 Bh6 Bg5 Nde3 Rc7 Bb5 Rac8 a8Q+ Ra7 Qe4 Rb8 Qc8 Bh5 Kc1 b2+ Kc2 b1R Rh8 Rc1+ Kb2 b3 Rd8 Be8 f7 Bf8 Ka3 b2 Bc4 b1Q Qh4 Qh7 Qb7 Nb1+ Ka2 Rc3 Ne4 Rc2+
1B2r3/1Q1q2QR/2bqQ3/1b1q1p2/3RPq1N/2rbQ3/3Np2r/2nN1Kbk w - - 0 1 illegal: No possible last move, all moves rejected
n1N3B1/3r2Q1/1R1RK1n1/2rpnq1r/3rR1n1/3q1Nbp/2QqNkP1/2N5 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nd2 exf6 Nb1 f5 Qd2 f4 Qd3 Qe7 Qd1 Qd8 h3 b6 Bd2 f3 Rh2 Bb7 Bf4 gxf4 Rh1 f2+ Kd2 Bc6 Qc1 Bf3 Qd1 Bg4 hxg4 Ra4 Kd3 Ra6 Kd2 Ra8 Kd3 Ke7 Kc4 Ke6 a4 Ke5 e4 f5 c3 h5 g5 d3 a5 b5+ Kb3 f3 c4 Kf4 e5 Kg3 c5 h4 a6 f4 c6 h3 e6 d2 a7 Ne7 g6 Rh5 c7 Na6 c8R Nc7 g7 Ng6 g8Q Bd6 Bd3 f1N e7 f2 e8N f3 Rb8 Ne3 Rb7 f1N Nc3 f2 Rc1 Ng4 Be2 N4e5 Qf7 Ne3 Qc2 f1Q Nf3 d1R Nf6 N3g4 Na2 Rd4 Nd5 Rc8 a8N Kf2 Nab6 Na8 Ndc3 Rc5 Rd1 Qe1 Qh7 Qd2 Nc8 Qf8 Rhg1 Qf5 Nc1 Bc7 Rb6 d6 Kb2 b3 Rge1 b4 Bc4 Bb8 Bg8 d5 Qg7 Qd3 N3e2 Qf5 Rd6 Bc7 Ka1 b2+ Ka2 Bb8 Kb3 b1Q+ Ka4 b3+ Ka3 Qdf4 Rd3 b2 Rb3 Qd2 Rbb6 Rc7 Kb3 Rd7 Ka3 Nc4+ Ka4 Nce5+ Kb5 Bc7 Kc5 Bb8 Qb3 Qbd3 Qc2 b1R Neg1 Bc7 Re4 Bd8 Nge2 Bh4 Rf6 Bg3 Rfe6 Rb7 Kd6 Rb5 Rf6 Qfg5 Ke6 Rc5 Rf7 Rbc7 Rd7 Ra7 Rdd6 Rd7 Qh8 Qgf4 Qg7 Qf5#
b7/R3Qq2/1b3bBn/1p1PB1q1/bR1Rn1qB/nrp2K2/Q6N/Rq4k1 w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 b5 Na3 h5 Ng1 f5 Nc2 f4 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Bd6 Ng4 hxg4 Qa4 Bc5 Qd1 Bf8 Kf2 Kd7 a4 Kc6 e4 Kc5 h4 Kd4 d3 g5 e5 c5 h5 c3 a5 c4 e6 g3+ Ke1 g4 h6 g2 Kf2 b3 f6 c2 a6 g3+ Ke1 f2+ Ke2 f3+ Kd2 b2 a7 Nd7 a8Q Bg7 f7 Nc5 f8R Bf6 e7 Bf5 h7 Nh6 Nh3 g1Q e8R g2 Be2 f1B Rf7 f2 Rfa7 Qe7 Rh2 Qf7 Qe1 Rg8 h8B Rg3 Rh1 Be4 Bd1 Be2 Ng5 f1Q Rh4 Qf5 Re6 Qg4 Rd6+ Bd5 Rdd7 Qh1 Qg8 g1B Bg7 Bf3 Qe7 b1N+ Ke1 Bg2 Ba3 Ne4 Nf3+ Ke3 d4 c1Q Nh2 Rh3 Bd6 Na3 Bg3 Bf3 Kf1 Qd2 Bc2 Bd1 Rd6 Ba8 Be5 Nf2 Bg6 Ne4 Bg3 Ba4 Rd8 Qh5 Rf4 Qg5 Bh4 Qc2 Rg4 Qf3+ Ke1 Bf2+ Kf1 Qff5 Kg2 Ke2 Rd6 Rb3 Rd5 c3 Bh8 Qgc1 Rf4 Ke1 Kf3 Q2b1 Rdd7 Bg5 Be5 Bf6 Rdc7 Qd2 Rc4 Qg5 d5 Qd4 Rb4 Qc4 Qgd8 Qc8 Qa5 Qcg8 Ng4 Kf1 Nh2+ Kg1 Qa6 Bb6 Rg4+ Ng3 Rgd4 Ne4 Qc8 Ba5 Qc4 Bb6 Qe2 Qc8 Qa2 Qcg4+
rkB1K3/2r3B1/3N1pP1/2n3Qq/q1q1rQnb/2N3N1/3pR1n1/2Nn1q1Q w - - 0 1 illegal: No possible last move
2qrn3/KnBk2N1/2rpp2n/B1B1n3/N1P4r/Q4b1Q/4B3/1NR1rq1q w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 f5 a4 fxe4 d4 h5 Ra3 c5 Rg3 cxd4 Rg4 e6 f5 Bd6 g3 Bf4 gxf4 hxg4 Kf2 g5 c4 b5 h4 e3+ Ke2 b3 Kd3 e2 f6 e1R h5 g3 a5 b4 f5 b2 a6 g2 h6 b3 h7 g4 a7 g3 Rh3 Na6 Qf3 Bb7 Rh1 Nc7 Bf4 Nh6 Ne2 g1Q Bd6 g2 Nf4 Qc8 Be2 Qf1 Nh5 g1N Qh3 Bf3 f7+ Kd8 f8N Ne8 f6 Rb8 a8Q Rb6 f7 Rc6 Bc7+ Ke7 Nd2 b1N Ng7 Na3 Nb1 Nb5 Qa3+ Nbd6 Ba5 Rg8 h8B b2 Nh5 Rg3 Be5 Rg4 Ng7 Rh4 Bh2 Bh5 Bg3 Nf3 Rg1 Rc5 Be5 Nb7 Bec7 Bg4 Ke4 d3 Rh1 Ne5 Kd4 d2 Rg1 Nbd6 Rh1 Rc6 Rg1 Ra6 Kc5 Bf3 Rh1 d1Q Rg1 Ra8 Kb6 Rb8+ Ka7 Rb6 Nh7 Rc6 Ng5 Qd5 Ne4 Rd1 Qb3 Nb7 Nc5 Re1 Qa3 d6 Na4 Kd7 f8B Qd1 Be7 Qd5 Bg5 Qd1 Be3 Qd5 Nbc3 b1R Bc5 Rb2 Bd3 Rg2 Be2 Rg5 Nb1 Rf5 Rg4 Rf8 Re4 Rh8 Re3 Qd1 Rc3 Qh1 Rc1 Qd3 Bd1 Qdf1 Be2 Nf6 B7b6 Rd8 Bc7 Ne8
1b1qB1NR/1q1q4/Rp3Q1P/4rB2/1rK3Rb/p1BR4/4nr2/2kbrQb1 w - - 0 1 legal: proof: f4 e5 g4 exf4 d4 h5 b4 hxg4 c4 b6 a4 Bb7 c5 Ne7 b5 Bc8 a5 Nbc6 d5 Ng8 dxc6 Rh6 Nc3 Rh8 Nd5 bxa5 b6 a4 b7 Qe7 Nb6 cxb6 Qd3 Qg5 Qd1 Qd8 Kd2 Ke7 Kd3 Ke6 b8Q Kf5 h4 d5 e3 g5 h5 a5 c7 g3 h6 d4 c6 a3 Ra2 f3 Qa7 g4 Rb2 a2 Bg2 a1R Rf2 a4 Bb2 a3 e4+ Kf4 e5 f5 e6 Ne7 Qf1 Ng6 e7 Re1 e8R Bd6 Qb8 Ra4 Rc2 f2 Be4 g2 Re2 g3 Bf3 Rb4 R8e6 Re8 R6e3 Re5 Kd2 d3 Kc3 d2 Qa7 d1Q Bh5 Qa4 Nf3 g1B Nh4 g2 Rg3 Be7 Qb8 Bh2 Ree3 g1B Rd3 Ke4 Rg2 f4 Nf5 f3 Rg4+ Nf4 Be8 Bh4 Ne7 Qa8 Qa7 Qb7 Ng8 Be6 c8B Bb3 c7 Bd1 Bcd7 B2g3 c8R B3h2 Rd5 Ke3 Ra5 B2g3 Rh3 B3h2 Qg2 f1Q Bf5 Qb5 Ra6 Q5d7 Qf1 B2g3 Ba1 f2 Qb8 Rbb5 Qc7 Ne2+ Kc4 Kd2 Qd6+ Kc1 Qf6 Bf4 Rd3 Rb2 Qg2 f1R Rb8 Rb1 Bc3 Rf2 Qh3 Re3 Rc8 Bb8 Qf1 Re5 Rc7 Qd6 Rh7 Q6d7 Rh8 Rb4+
3N1Q2/1p1qr3/2n1B2n/1rb2p1P/1r1R3N/k1qq3q/1r1R2NN/K2R1Qn1 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 g5 a5 Bd2 axb4 Be3 Qf6 Bc1 Qd8 g6 d6 Bb2 h6 Bc3 f6 Bd2 Ke7 Be3 Be6 Bf2 Ke8 Bh4 Bf7 gxf7+ Kd7 Bg5 hxg5 Kd2 Kc6 Kc1 Kb5 Kb2 Ka4 e4 b3 c4 g4 h4 g5 h5 f5 c5 d3 c6 d5 e5 d4 c7 g3 c8N g4 a3 f3 e6 d2 e7 d3 e8N f2 Rh2 g2 Nc7 g3 Nf3 g1N Na7 g2 Ne6 Rh7 Nh4 Qc7 Nf4 Bc5 f8Q Nh6 Nc6 Ra5 Nd8 Rb5 Qe1 d1R Nd2 Re7 Ndf3 d2 Bc4 f1Q Be6 Qd3 Qf1 Nc6 Rb1 Rc1 Ka1 Rc2 Re1 Rb2 Rd1 Ka5 a4 Kb4 a5 Ka3 a6 Qcd7 a7 Qc3 Rb1 d1Q Rc1 Q1d3 Rd1 Rb4 a8R+ Ra4 Qf6 Nh3 Ra6 g1Q Qf2 Qg3 Qh8 Ng1 Qf1 Qh3 Rhd2 Ra5 Nh2 Rc2+ Kb1 b2 Qf8 Ra4 Rb6 Ra5 Rb4 Rb5 Re4 Qh8 Nfg2 Rc4+ Rc2 Rcb4 Rg4 Qhc3 Rd4 Ka4 Ka2 b1R Rcd2 Rb2+ Ka1 Ka3
5Qnn/3k4/rRRrq1r1/2nRp1pn/1R2Q1Nb/2P2N1K/2B3nr/5Q1n w - - 0 1 illegal: No possible last move
2k5/1r3Rr1/2K1N3/4NBBp/p1N3b1/rrrB1QPQ/nn3bn1/1rB1n3 w - - 0 1 legal: proof: a4 c5 f4 g5 d4 gxf4 b4 cxd4 g3 b5 Nh3 bxa4 Ng1 e5 Ra2 Qg5 h3 Qg4 Ra3 e4 Rf3 exf3 hxg4 Bh6 Bb2 Bg7 Bc1 Bf8 Kf2 Kd8 c4 a5 e4 f5 c5 h5 b5 d5 b6 d3 g5 d2 c6 d4 g6 a3 b7 a2 e5 a1N e6 d3 g7 Nh6 g8Q Na6 b8B Rh7 Nc3 Rg7 Qh7 Nb4 Rh3 Na2 Na4 Nc2 Bg2 Bc5+ Kf1 f2 Nf3 Ng4 Nh2 Ne1 Qf3 d1R Rh4 d2 Ke2 f1R Nb6 Bf2 Nc4 Ne3 Ng4 a4 Qg6 Raa7 Nge5 Rab7 Qgg4 Bd7 c7+ Kc8 Bh1 N3g2 e7 Be6 e8N Bd7 Ba3 Ra1 Qh3 d1N Bc1 Nb2 Rg4 Rg1 Rg6 Rb3 Rf6 Rc3 Rf7 Rb3 Qd3 f3+ Kd2 f4 Qf1 Rg5 Ng7 Bg4 Ne6 Rg7 Qe2 Bc5 Qd3 f2 Qf3 f1R Ba7 Bf2 Be3 Nc2 Ke2 Rd1 Bed2 Nce1 Be3 Rd7 Bed2 Ne3 Bg2 Rdd3 Bf1 N3g2 Be3 Rdc3 Kd2 Rb1 Bd3 Rh1 Qd1 f3 Bg5 Bg1 Qe2 f2 Qf3 f1R Ke2 Nh4 Kd2 Rf2+ Ke3 Nhg2+ Kd4 Re2+ Kd5 Bf2 Kc6 Rec2 Qd1 Ra3 Qe2 Rcb3 Qf3 Rcc3 Kd5 Kb7 c8B+ Kb8 Bd7 Rg1 Kc6 Rf1 Be8 Kc8 Bf5 Rh1 Bd3 Rh2 Bd7+ Kb8 Rf4 Rb7 Be3 Rcb3 Bc2 Rh1 Nc7 Rc1 Bd3 Rcc3 Rf7 Nc2 B7f5 Rb1 Ne6 Nce1 Bc1 Kc8
K2k1qb1/R2p4/r4R1Q/nn2pN2/rp1q2BN/4r3/PN3RbN/qb5Q w - - 0 1 legal: proof: d4 a5 e4 c5 f4 cxd4 b4 axb4 g3 f5 Bg2 fxe4 Bh3 Qc7 Bf1 Qd8 Be3 e6 f5 h6 Bc1 Bd6 Bg5 Bf4 gxf4 hxg5 Ke2 b5 h4 e3 Kd3 g6 c4 e2 h5 e1Q h6 g4 c5 b3 c6 e5 f6 g3 f5 b2 h7 g5 f7+ Ke7 f8N g2 c7 b4 Kc4 g4 Kc5 g3 Kb6 d3 f6+ Ke8 Be2 d2 Nc3 b1B Ng6 Na6 Rh3 Ne7 Bg4 Bb7 Nf3 g1R Ngh4 g2 Nh2 Nc6 Na4 Na5 f7+ Ke7 Qf3 d1B f8R Bb3 Rf6 Bg8 Nb2 Qf8 c8N+ Kd8 Nd6 Nc7 Ndf5 Nb5 Qe4 Qd2 Ra3 Re1 Qf4 Qc3 Qh6 Re3 Ra4 g1Q Ra3 Nb3 Ra7 Bg2 Ka6 Na5 Kb6 Bd3 Rf1 Qd4+ Ka6 Bc2 Rf4 Qa1 Rf2 Nc6 Kb7 Bb1 Ra5 Ra6 Ra3 Na5+ Kb8 Rc6 Ka8 Nc4 Ra7 Na5 Qf4 Ra6+ Qe4 Be6 Qf3 Rg8 h8Q Rg6 Qh6 Bg8 Rf7 Rgc6 Rf6 Rcc3 Qe4 Ra3 Qc6 Ra4 Qd5 Bh3 Qh1 Bg2+
3qN3/P3p2k/bRrr1Qn1/3b1n2/BQ2p2B/nqB1q3/p1Q1N2Q/5bK1 w - - 0 1 illegal: No proof kernel
b2r2nQ/k1N2Q2/1rq4R/1p2p1BP/r1r1N3/1Q2n1RR/p2K4/r2R2bn w - - 0 1 legal: proof: c4 f5 b4 a5 g4 axb4 e4 fxe4 a3 d5 cxd5 h5 Bc4 hxg4 Ba2 b3 Qf3 bxa2 Qb3 Ra7 Qd1 Ra8 h4 Kd7 f4 c5 d4 Kc7 f5 Kb6 f6 g5 h5 e5 f7 g3 a4 c4 a5+ Ka7 d6 b5 d5 g4 a6 g2 d7 e3 d6 c3 Ba3 g3 Bc5+ Qb6 d8Q c2 d7 c1R Be7 e2 Nd2 Qc6 Bg5 Bb7 Ngf3 g1N Rh3 g2 Ne4 Rc4 Nd4 Bc5 Rg3 Nh3 f8Q g1R+ Kd2 e1R Qf7 Nf2 Ne6 Nh1 Qb3 Rh6 Rh3 Rg4 Rd1 Bg1 Nc7 Rg6 Qde8 Re6 d8R Nd7 Rg3 Ndf6 Rdd3 Rd8 Rh3 Nd5 Rdg3 Ba8 Qef8 Kb6 a7 Red6 Q8g7 Ra4 Qh8 Rh6 Nf2 Rgc4 Ne4 Ne3+ Qd7 Bb7 a8R Rf6 Rb8 Ka7 Qd5 Ba8 Rb6 Qc5 Rd6 Rg6 Qf7 Rh6 Rd3 Rb6 Rd6 Qc6 Rb1 Re8 Rh6 Rf1 Rb2 Ra1 Rb1 Rc8 Rd1 Rd8+
2b1n3/N1r1q1Nr/2Qb1pN1/b2BR3/p2Pn1B1/5Bb1/rp3bBQ/4k2K w - - 0 1 legal: proof: b4 a5 g4 e5 f4 h5 fxe5 hxg4 c4 d5 a4 dxc4 Ba3 Na6 Ra2 Nb8 b5 b6 Bb4 axb4 a5 b3 a6 Qd6 Ra4 Qd8 Ra5 bxa5 Kf2 Kd7 Kg2 Ke6 h4 Kd5 e4+ Kd4 e6 g5 e7 c5 e8B c3 a7 g3 e5 c4 e6 b2 h5 c2 b6 c1B h6 c3 e7 c2 b7 g4 h7 Nf6 Nc3 Nbd7 b8Q Ne4 Nh3 Ndf6 Bc6 Ne8 Qf3 f6 Nf4 Qd6 d3 Bd2 Nh5 c1R Ng7 Qd8 Kg1 g2 Rh5 Bf4 Rc5 Bg3 Re5 Qd6 Bd5 Qd8 Na4 Rc7 Nb6 Kc3 d4+ Kd2 Qc3+ Kd1 Qc6 Ke1 Be2 Qd6 Bf3 Qb4 Ne6 Bh6 Ng7 Bd2 Rh5 Bd6 Re5 Qc5 Kh2 g1B+ Kh1 g3 Bg2 Bf2 Bf3 Rf8 h8N Rf7 Ng6 g2+ Kh2 g1B+ Kh1 Bh3 Nc8 Bg3 Bg4 Rf8 Bf3 Rh8 Bg4 Rh7 Bf3 Rb7 Qbc7 B1f2 Bg4 Rab8 a8B a4 Na7 Ba5 Bf3 Rb3 Bb7 Ra3 Bc8 Rb7 Bcg4 Ra2 Qb8 Nc7 e8B Qa3 Bed7 Ne8 Bg2 Qb4 B4f3 Rc7 Bdg4 Qa3 Bh5 Bc8 Bg4 Bh4 B4f3 Qc5 Bhg4 Bhg3+ B2h3 Bf8 Qb3 Bg1 Qc2 Qa3 Qh2 B1f2 Bhg2 Qd6 Qc2 Qd7 Qc4 Bd6 Qc6 Qe7
3bnNn1/N3krR1/1p2br2/5qpQ/3Qb1bn/1P3R1K/B1Rp4/3b2RN w - - 0 1 illegal: No possible last move
2KN3b/2r3N1/p2PR3/QBrnn1R1/3pQb2/n2p1Qrr/q3Q1rk/6N1 w - - 0 1 illegal: No possible last move, all moves rejected
2bR2bQ/NQ2N2p/4QR2/Nbp3np/1Br1n2r/2nqK1P1/3n1n2/k1N5 w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 d5 h4 dxc4 h5 a5 e3 axb4 h6 g6 Be2 Bg7 Bh5 gxh5 hxg7 Kd7 Bb2 Ke7 Bc1 Ke8 Kf2 Kd7 d4 Ke6 a4 Kd5 a5 f5 a6 b5 g3 f3 a7 f4 Rh4 c3 e4+ Kc4 d5 b3 d6 c2 d7 b2 e5 Kb3 e6 b4 e7 Nc6 e8Q Nf6 g8N Ne4+ Kf1 f2 Ke2 f1N Qd6 f3+ Kd3 f2 Qf4 Nfd2 Qg6 f1B+ Ke3 Nd4 Rg4 Ne6 Qff6 N6g5 Na3 b1N Ne2 Nbc3 Rf4 c5 Ne7 Rf8 Rb1+ Ka2 Nc4 b3 Ba3 c1N Bb4 b2 Na5 Nd3 Rd1 b1B Nc1+ Ka1 Qh8 Ndf2 Qe6 Bb5 Rf6 Rb8 a8Q Ba2 Qb7 Ra8 Rh6 Rf4 Rg6 Rh4 Rf6 Qe8 d8N Qd7 Ndc6 Bb3 Nc4 Ra4 Na7 Qd8 Na5 Bd5 Ba3 Rc4 Bb4 Qd7 Qe5 Bg8 Qe6 Nb3 Rd4 Nbd2 Rd3 Qd5 Rd4 Qf5 Rd6 Qd5 Rd8 Qd3+
1rr1nNB1/R1n1pp1p/3N4/7N/1nn1qnr1/b6k/Q1Q1BPb1/K2N3B w - - 0 1 legal: proof: e4 a5 a4 d5 h4 dxe4 h5 b5 axb5 g6 Ra2 gxh5 Ra1 h4 b4 c5 b6 c4 b5 c3 Bb2 cxb2 Ra4 Qc7 Rd4 Qd8 Rb4 axb4 g4 Kd7 d4 Ke6 Kd2 h3 c4 b3 Kc3 e3 c5 e2 d5+ Ke5 b7 Kf4 c6 e1R g5 h2 b6 Bd7 c7 Nc6 b8Q Re2 c8B+ Kg4 b7 Nf6 d6 Bh6 g6 Nb4 g7 Ne8 Qc2 Re4 Qa7 Bc1 Nh3 Rb8 Nf4 Qb6 Nh5 Qe3+ Bd3 Kh3 Qa2 Rg4 Re1 Bc6 d7 h1N d8N Rf8 g8B Qe4 Be2 Ng3 Bd7 Rc8 b8N Bb7+ Bc6 Ba8 Nf6 Nh5 Nb7 Nf4 Nd6 Bb7 Na3 Ba8 Nac4 Bb7 Rd1 Ba8 Ne3 Bb7 Rd4 b1N+ Kc4 b2 Kb3 Nc3 Nd1 b1N Nbd7 Ba3 Nh5 Nb5 Rd2 Qf5 Bh1 Nbc7 Rd5 Qe4 Ra5 Rb8 Ra7 Nd2+ Kc3 Nc4 Kb3 Ng7 Kc3 Rfc8 Nf8 Nb2 Kd2 Bd5 Kc1 Nc4+ Kb1 Nge8 Ka1 Qe6 Ra6 Bg2 Ra7 Qe4
1K5k/2pb1Q2/R2p3P/2rRb1Nr/2Q1Q3/3n4/nB1b1qpQ/R1B2bbr w - - 0 1 legal: proof: d4 d5 f4 g5 a4 gxf4 c4 dxc4 d5 b5 axb5 Bg7 Kf2 Bh6 Ke1 Bf8 g4 h5 g5 Be6 d6 Bf5 Bh3 Be6 Nc3 Bc8 Bg4 hxg4 Ne4 Bh6 d7+ Kf8 Nd6 exd6 Ra4 Ke7 Ra1 Bf8 Kf2 f5 e4 Kf7 b4 Kg7 h4 a5 b6 f3 Ke3 f2 Kd4 f1B Kd5 g3 e5 f4 g6 g2 b5 c3 h5 a4 e6 c2 e7 a3 e8Q a2 b7 f3 b6 f2 Nh3 Ra6 Qe4 Nh6 Qdd4+ Qf6 d8B Ng4 Qc4 Nc6 b8R Bd7 b7 Nge5 Ng5 Nd3 Ra8 Be7 b8Q Ra5+ Qbb5 Rh6 Qbc5 Kh8 Ra6 Qf8 Rh4 Bf6 Be7 Bd4 g7+ Kg8 Bb2 c1B Rf4 Bde3 Rf5 Bcd2 Bef6 Bd4 Bc1 Be5 Q5b5 Bh2 Bfb2 Bg1 Qe5 Rh7 Qh2 Rh8 Qe4 Ncb4+ Kd4 Qf7 Qc4 Rc5 Re5 Be2 Rd5 f1R+ Qe3 Qf2 Ke4 Rh6 Qf3 Rg6 h6 Re6+ Kf5 Re5+ Kf6 Rf5+ Ke7 Re1 Kd8 Bf1 Qfe4 Re5 Nh7 Rh5 Ng5 Be8 Kc8 Bd7+ Kb8 Rd1 Rb1 a1B Ba3 Bf6 Ra1 Be5 Bab2 Na2 Qg3 Be2 Ba3 Bh2 Bab2 Rh1 Qgf4 Bg1 Qh2 Bf1 Nh3 Kf7 g8Q+ Ke7 Qe6+ Kf8 Qe7+ Kg8 Ng5 Kh8 Qe6 Qe1 Qf7 Qf2
1rkb2R1/1N4rB/1Rp1rnB1/3n2P1/q1p3Rb/n1b5/Q1pQ2RB/n4K2 w - - 0 1 illegal: No proof kernel
2N1NR1r/1R3n1q/pb1bB2Q/R1nK1rp1/6P1/p7/3n1NQb/k2Nn1r1 w - - 0 1 legal: proof: e4 c5 b4 f5 a4 fxe4 d4 cxd4 b5 a6 a5 Nc6 Bd3 Na7 Bc4 b6 Bf1 bxa5 b6 a4 g4 h5 b7 h4 bxc8Q d6 Bf4 Rb8 Bg3 hxg3 Qb7 Rc8 Qa8 Rc6 Kd2 Kd7 h4 Ke6 c4 Ke5 h5 g5 c5 e3+ Kd3 g2 Kc4 d5+ Kd3 e2 f3 e1B h6 a3 h7 Qd7 Rh3 Nb5 Qe8 Nh6 Rh4 Bf2 Rh1 Nc3 Qb3 Na4 Nh3 g1B Qc2 Nf7 Nc3 Bh2 Rb1 Rf6 c6 Rf5 c7 e6 c8N Bd6 Qf8 Nc5+ Ke2 Qc7 Rb7 d3+ Kd2 Kd4 f4 e5 Qh6 e4 Nd1 Bfg1 Nhf2 Qe7 Qb2+ Kc4 Rb5 d4 Ra5 Qd7 Qb7 Qc7 Qa8 Kb3 Be2 Ka2 Qb7 Rd5 f5 Ka1 f6 Rf5 Qc6 Ne5 f7 e3+ Ke1 Qd7 f8R Nf7 Qg2 d2+ Kf1 Qc7 Bc4 d3 Be6 Qd7 Qb7 e2+ Kg2 Rd5 Kf3 e1N+ Ke3 Rf5 Kd4 Qe7 Qg2 Qd7 Nc3 d1R Kc4 Rb1 Ncd1 d2 Kd4 Bhf4 Rh3 Bfh2 Rb3 Qa7 Rb7 Rc1 Nc3 d1N Kc4 Nb2+ Kd4 Ne5 Nd1 Nbc4 Kd5 Nd2 Qe4 Rg8 h8N Rb1 Nf7 Rh8 Qg2 Rc1 Rb4 Qe7 Rb7 Rb1 Nd8 Qh7 Nf7 Nce4 Nh3 Bb6 Nhf2 Rc1 Bd7 Nc5 Be6 Bb8 Nfd6 Nf7+ Kd4 B8c7 Ne8 Bcd6 Nd3 Rf1 Kd5 Rg1 N3f2 Rc3 Nc7 Rf3 Ne8 Rf5+
1B1kN1n1/4pb2/QKBp1rb1/r3pB2/3Q2b1/1b1NPBn1/3qn3/5rRN w - - 0 1 legal: proof: h4 a5 b4 axb4 d4 c5 h5 cxd4 a3 b3 h6 gxh6 Bd2 h5 Bc1 h4 Nf3 b5 Bf4 b2 Be5 f6 Ng1 b4 Bf4 b3 Bc1 Bh6 Ra2 Bf4 Ra1 Bd6 Ra2 Bb4+ axb4 Nc6 Ra5 Nb8 Re5 fxe5 Kd2 h5 Kd3 h3 Kc4 d3 Kc5 h2 f4 d2 c4 h4 g4 h3 g5 Bb7 b5 Rh7 g6 Nf6 b6 Ra2 e3 Nc6 f5 Rh5 g7 Na5 g8B Ba8 b7 Nc6 b8Q Nd5 f6 Rh4 f7+ Kf8 Ne2 Rh8 Qb5 Nd4 Rg1 h1B Bg2 h2 Ng3 Nf6 Nc3 b1R Qa6 b2 Nb5 Rba1 Bf3 b1B Ba3 Ne2 Nd6 Bd5 Ne8 Rh6 Bb4 Bg2 Nh1 Bh3 Bh7 Bhe6 Bhe4 Bg4 Kb5 Rg6 c5 Ng8 c6 Rf6 c7 d6 Bc5 Ra5+ Kb6 Bde6 Qa4 d1B Qd4 Bdb3 Bc6 Qa8 c8B Bg6 B8d7 Rf1 Bc8 Bed5 Bf5 Bdc4 Kc7 Be6 Ba7 Bed5 Kb6 Qc8 Nf2 h1N Bb8 Nhg3 Nh1 Be6 Ba8 Qc3 Bac6 Bed5 Nc7 Kg7 f8N Kf7 Nfe6 Qd2 Ne8 Bdc4 Nc5 Be6 Nd3 Bec4 B5e4 Ke6 Ba8 Kd7 Bac6+ Kd8 Bf5 Bcf7
n1Q3nR/B6b/1b3NN1/q1QN2np/k1Br4/1pBp1n1B/2qP3n/1K5r w - - 0 1 illegal: No possible last move
k2rQNnQ/rq1Q1p2/1n2p1NB/1b5r/3qp1NN/r1PR2r1/2B5/b3K3 w - - 0 1 legal: proof: e4 b5 a4 h5 f4 g6 f5 gxf5 axb5 Nh6 d4 Ng8 g4 c6 b4 f4 d5 cxd5 g5 dxe4 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 h4 d5 b6 Kd7 b7 Kc6 h5 a5 g6 a4 g7 a3 h6 a2 h7 a1R Qe2 d4 Na3 e6 Nc4 g3 Nf3 d3 Qd1 g2 Rh3 g1R Ne3 R1a7 Ng4 Qd4 Nh4 f3 Bh6 Nd7 b8N+ Kb7 b5 Nb6 Nd7 Rg3 c3 Ba3 Nf8 Bb2 Be2 Bd7 Qa4 Rd8 Bd1 Ba1 Bc2 Ka8 Nfg6 Qd5 Qd4 Qb7 Qd6 Nc8 b6 Bb5 Qd7 d2+ Kd1 Nf6 g8Q f2 Qge8 Ng8 Nf8 Rg2 Rf3 Rg3 Rd3 f1R+ Ke2 Rf5 Nfg6 Rd5 Kf1 d1Q+ Kf2 Qf3+ Ke1 Rh5 Nf8 Qf6 Nfg6 Qc7 Nf8 Qd4 b7+ Kb8 Nfg6 Nb6 Nf8 Ra3 Nfg6 Ka7 b8N Qb7 Qc6 Nf6 Qg8 Rf8 Nd7 Ra8 Qgc8 Rf8 h8Q Ng8 Q8c7 Rfb8 Ndf8 Rd8 Qe7 Kb8 Qce8 R8a7 Q7d7 Ka8
1kbN2K1/rqb1b1r1/1rn1n3/2RRpr1N/N1Q5/P1Q2B2/1p1Q3p/2N4q w - - 0 1 legal: proof: h4 f5 e4 fxe4 c4 d5 cxd5 a5 d3 g5 b4 axb4 Be3 gxh4 Na3 b3 Rc1 b2 Rc2 b1Q Bd4 Qc1 Ba1 Qxa1 Kd2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 h5 Kg6 b5 Kf7 e5 g4 h3 f4 c4 f5 c3 d4 h2 d6+ Kb7 d5 h4 f6 b4 d7 e3 d6 h3 g5 b3 g6 e2 g7 e1B Qc1 b2 Nb1 Ra7 a3 Qa5 d8Q Rh7 d7 Nc6 Bg2 Qa6 Bf3 Ne7 Ne2 Nf5 Kg8 Be7 f7 Kb8 f8N Qb7 Ng6 Nfd4 Ngf4 Ne6 Nh5 Rh6 Rd2 c2 Rd5 Ba5 Nbc3 Bc7 Na4 Rf6 Qd2 c1R Qc3 Rg1 Nc1 Rf5 Rc5 Rgg5 Rd1 h1R Rdd5 h2 Qb3 Rhg1 Qc3 Bcd6 Qda5 Rg6 d8N Bc7 Qd2 R1g2 Qac3 Rgf6 Kh7 Rfg6 g8Q R2g4 Kh8 Rb4 Qf7 Rb6 Qg8 Rg3 Qg4 Qb1 Qgc4 Qe4 Kh7 Qe1 Kh8 Qh1 Kh7 Rg7+ Kh8 Rgf7 Kg8 Rg7+
n3Q1K1/2Q2B2/1qRR2N1/qbp3q1/4N1Q1/3P2r1/pQ1p1b2/Rb2rnbk w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 h5 f4 exf4 g4 hxg4 d3 d5 Be3 dxc4 Bd2 c3 Kf2 cxd2 h4 Ke7 b4 Kd6 e4 Ke5 h5 f5 b6 a5 h6 g5 b5 a4 h7 f3 Ke3 f4+ Kf2 a3 b7 a2 b6 Nd7 b8R Ba6 b7 Nh6 Qc2 Nb6 Be2 g3+ Kf1 g2+ Kf2 g4 Rh2 Rg8 Rh5+ Nf5 Rh6 Ne3 Rh2 Bc5 h8Q+ Rg7 Na3 Bb5 Qb3 Bd4 Qh6 c5 Qb2 Ra4 Nh3 Na8 Rhh1 Ra6 Qg6 Qa5 Rh2 Re6 Ng5 Re8 Rh6 Ree7 Kg1 f2+ Kh2 f3 Kg3 f1B Kh4 Kf4 Kh5 Kg3 e5 Kh2 e6 g1Q Nc4 f2 Ne5 g3 Rd8 g2 b8Q Kh1 Qc7 Rg8 Bg4 Be2 Qg7 Ree8 e7 Bd1 Rd5 Bc2 Be6 Bb1 Bf7 f1Q Kg6+ Qh2 Kh7 g1B Qg6 Qf6 Qh5 Qfb6 Rc6 Nf1 Rdd6 Bdf2 Qh4 Rd8 Qh3 Rd7 e8Q Re7 Qh5 Rg6 Kh8 Qh4 Kh7 Rge6 Ng6 Re1 Kg8 R7e3 Ne4 Rg3 Qg4 Qg5
1Q2Rn2/2rk4/RpN4r/2pb3q/3QBb2/p1Q2b2/bK2BnBP/Q3qr2 w - - 0 1 legal: proof: f4 d5 g4 h5 a4 hxg4 c4 e5 cxd5 exf4 a5 b6 a6 Rh6 Na3 Rh7 Nb1 Rh8 b4 Qd6 b5 Nc6 Ba3 Qd8 Bb4 Nb8 Ba5 Bf5 Nc3 Bd7 Na4 bxa5 b6 Be6 b7 Bc8 Nb6 axb6 e4 c5 d4 g5 Kd2 f5 Kc1 g3 a7 f3 e5 a4 e6 g4 d6 f4 d5 f2 e7 g2 Qb3 f3 Qa3 g3 Kb1 Nh6 Qb2 Bg4 Ne2 g1R Qc3 g2 Kb2 Kd7 Nd4 Qe8 Rd1 Qh5 Be2 f1B Nc6 f2 Rd3 Bf3 Re3 Na6 b8Q Nc7 Re4 Bg7 Rb4 Bf8 Rb5 Ne6 Ra5 Ng4 Ra6 Rh7 Qe3 Rh6 Qc3 Bg7 Qh8 Rf8 a8B Be5 Qg7 Bf4 e8B+ Kc8 Bg6 Rf7 Bc2 Nf8 Be4 Rb7 Qgd4 Rc7 Qd1 Kd7 Qa1 Rc8 Bd1 Bc4 Be2 Rd1 Re1 f1B Bb7 g1Q Ba8 Ba2 Bb7 Ke8 d7+ Kf7 d8Q Rc7 d6 Ke6 d7 Nf2 Qc8 B1g2 Qb8 Bh1 d8Q Rc1 Rd1 Qe1 Qdd4 Bhg2 Rd3 Bh1 Re3 Rd1 Bd5+ Kd7 Re8 Rc1 Bf7+ Bfd5 Bg6 Bf3 Ba8 Qd2+ Bc2 Rf1 Bb7 Qd1 Be4 Qe1 Bc8+ Kd6 Bh3 Nh7 Qcb4 Nf8 Bg2 Kd7 Qbc3 a3+
q1Q3NB/3bqKP1/b1r5/BBR5/1rnp1p2/1k1Bq2Q/pN1b4/1Nb1n3 w - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 b4 exf4 Ra3 b5 axb5 cxd4 c4 Qa5 Rb3 Qd8 Rc3 dxc3 Kf2 Ke7 Kf3 Ke6 Kg4 h5+ Kf3 f5 g4 a5 e4 d5 c5 a4 g5 c2 e5 a3 c6 d4 b6 Kd5 b5 a2 b7 h3 b6 h4 g6 h2 c7 h3 e6 Nc6 b8N Na5 b7 Bh6 e7 Nf6 e8B Ng4 Be3 c1B Bd3 Nc4 Nd7 Qe7 b8B Nf2 Qb3 Ra6 Bd2 Rc6 Ne2 Ba6 Rg1 h1B+ Rg2 h2 c8Q Rh7 Be5 Bg5 Ba5 Rf7 Bc2 Nd3 Bh8 Bd2 g7 Ne1+ Kf2 f3 Kg3 f2 Bd3 f1Q Nf6+ Kc5 Nec3 Qfe2 Nd1 Q2e5+ Kh3 Qe3+ Rg3 Bd5 Ng8 Be6 Nb2 Bd7 Rf3 Bh6 Kg3 Rf6 Kh4 h1Q+ Rh3 Kd5 Kh5 Rb6 Qc3 Rfc6 Rh2 Qhe4 Rg2 Rb4 Rg5 Rc7 Kg6 Kc5 Qc2 Qa8 Rh5 Bc1 Qh2 Bg5 Qh3 Kb5 Nd1 Ka4 Nb2+ Kb3 Qg2 Qe2 Qh3 Bgd2 Rg5 f4 Rc5 Bg4 Bc6 Bd7 Bb5 Q7e3 Kf7 Rc6 Bb6 Q2f3 Bc7 Qfe4 Ba5 Qe7+
1b2r2q/1kN1B1Pb/3K2p1/1N1R2N1/Qp2rn2/1pQR1bn1/4n2R/Nq4n1 w - - 0 1 legal: proof: c4 a5 h4 e5 f4 d5 b4 axb4 cxd5 exf4 g4 Ra5 h5 Ra7 g5 Ra8 Bg2 g6 Be4 gxh5 g6 h4 g7 Bf5 Bc2 Bc8 Bg6 fxg6 Kf2 Kd7 Kf3 b5 Ke4 c5 Ke5 Kc7 e4 h5 d4 c4 a4 c3 d6+ Kb7 d7 b3 a5 c2 d5 h3 d6 h2 Na3 h4 Bd2 c1N Qf3 b4 Nc2 h3 Ne2 Ne7 Ned4 Nd5 Nb5 Ne2 Rad1 Rh4 Na1 Ng1 Qc3 f3 Bg5 f2 Be7 f1Q Rd3 Nc6+ Ke6 Qb1 e5 Re4 a6+ Kb8 a7+ Kb7 Bh4 Rb8 a8N Qe8+ Be7 Nf4+ Kf6 Nd4 d8R Bf5 d7 Nde2 Nac7 Be6 Rd5 Bf7 e6 Bg8 Rd3 Bh7 Rd5 Rd4 Ke5 Re4+ Kd6 Qf7 Re8 Qg8 Rc8 Qh8 d8N+ Kb6 Nf7 Kb7 Rd8 Rc8 Rd7 Re8 Ng5 Qc2 Kc5 Qb1 Bd6 Be7 Rd3 Bf6 Be7 Bd4+ Kd6 Ba7 Rd8 Bb8 Kc5 Qf1 R8d5 Qb1 Kd6 Nf3 Rg1 h1N Rg2 Nhg3 Rh2 Nfg1 Bf6 Rf8 e7 Rg8 e8Q Rf8 Rf2 h2 Be7 h1B Rh2 Bf3 Qec6+ Kc8 Qa8 Re8 Qa4 Kb7
2NR2Bb/1nqQqpp1/3q4/3b1QBn/1R3P1K/2n1R1B1/1p3R1q/rr4k1 w - - 0 1 illegal: Other
1qqQ4/4pP2/nN5r/K1krR2r/5B2/1Qb2pp1/Bb1rR2q/Qn1Q3R w - - 0 1 legal: proof: e4 d5 f4 a5 c4 dxc4 b4 axb4 Nh3 g5 Ng1 gxf4 Bd3 f3 Be2 Bh3 Bf1 Bc8 g4 f5 Nc3 f4 g5 h5 Nd5 Bg4 Ne3 Bc8 Ng4 Bf5 exf5 hxg4 d4 Kd7 Kd2 Kd6 a4 c5 h4 b5 f6 f2 h5 c3+ Kc2 f3 Kb3 g3 a5 c2 f7 c4+ Kb2 b3 Kc3 b2 Kb4 c3 h6 Ra6 g6 Qc8 h7 Bg7 d5 Nf6 Ra2 b1Q+ Rb2 Qa2 Nh3 Ne4 Nf4 Nd2 Bc4 f1R Bb3 Rc6 a6 Rf2 a7 Nb1 a8Q Rd2 Qa4 Na6+ Ka5 Kc5 d6 b4 d7 Rb6 Bd5 b3 d8Q Be5 g7 Rh6 Be6 Rd5 Bd2 c1R g8R Rc2 Rg5 Rh5 Bc1 Rcd2 Rc2 b2 Rf5 Na3 Qb3 b1Q Rb2 c2 Rg5 Rg8 h8Q Rg6 Qg7 Bd4 Re5 Rgh6 Qf6 Rdh2 Be3 c1B Re2 Bb2 Rf2 Ba1 Qa4 Qbb8 Rg5 Re5 Nd5 Rg6 Nb6 Nb1 Bf4 Rgh6 Rd2 Qb2 Ba2 Rd5 Qab3 Re2 Rd3 Reh2 Re3 Qf2 Qe5 Qg1 Re1 Rd2 Re2 Qh2 Qf6 Bg1 Qfb2 Bd4 Rge5 Bc3+ Ka4 Na3 Qbc1 Bb2 Qa1 Bd4 Ka5 Nb1 R5e4 Bf6 R4e3 Bfd4 Re5 Bdc3+
bkqq1n2/R2p2Q1/5N2/2Q1Rnr1/r1b2K2/q2p1p2/1NP1Qr1Q/RB4q1 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd3 f4 Nb1 h6 Qd1 Bd6 Be3 f2+ Kd2 f3 Bg5 Bf4+ gxf4 hxg5 f5 Kf7 Kd3 Kf8 Kd2 Ke8 e4 Ke7 h4 Kd6 a4 Kc7 h5 b5 f6 b3 h6 b4 a5 g4 a6 g5 f7 b2 f8Q b3 h7 g3 a7 g2 e5 g4 e6 g3 e7 Nh6 e8R Bb7 Bc4 f1B Nc3 b1Q Qg7 b2 Nge2 g1R Ra2 g2 Ng3 Na6 Nge4 Nc5 Be6 Nf5 Nf6 Qa1 Na4 b1Q Bg8 Qab2 Re5 Ne6 Qe1 Bb5 Qe2 d3 Ra3 Nf8 Ba2 Rf1 Rg1 Rf2 Rf1 Nh6 Ke3 g1Q Kf4 Nf5 Re1 Bc4 Rd1 Rc8 a8Q Q2a1 Qa7 Ra8 Qc5+ Kb8 Re1 Bbd5 Rd1 Qb7 Nb2 Qbc8 Ra6 Ra7 Re1 Ba8 Rf1 Rb7 Ra7 Rb4 Rb1 Ra4 Rc1 Qe1 Rd1 Qb4 Rg1 Qf1 Rh1 Qg2 Ra1 Qa3 Bb1 Qg1 Qg6 Rg8 h8Q Qcc7 Qh2 Qcc8 Qgh6 Rg6 Qg7 Rg5
1Q1K1N2/2QpB1k1/B1B2nP1/4n3/1bn1Np2/6QB/rRb1rq1p/1qn1b3 w - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 b4 exf4 Ra3 b5 axb5 cxd4 c4 Qa5 Rb3 Qd8 Rc3 dxc3 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 Kf7 g4 f3 e4 h3 g5 a4 c5 h4 g6+ Kg7 c6 a3 c7 f4 b6 a2 b5 a1N b7 c2 b6 f2 Nc3 h2 Qf3 h3 Nge2 Bc5 Qg3 Qh4 Nd4 Bb4 Ne6+ Kh6 Ba3 c1B Nf8 Bd2 Kd5 Be7 e5 Nb3 e6 Be1 Ne4 B7b4 e7 Kg7 e8B Nc1 Bf7 Nc6 b8Q Ba6 c8B Bd3 b7 Ne5 Qc7 Bc2 b8Q Ra6 Rg1 h1Q Rg2 h2 Be6 Ra8 Bb5 f1N Bh3 Nd2 Bc6 Ndc4 Ba6 Qg1 Qf3 Qhf2 Qg3 Ba5 Be7 Bab4 Bab5 Ra2 Ba6 Qf3 Re2 Qgf2 Rd2 Qb3 Re2 Qb1 Rd2 Bd3 Rb2 Bc2 Bc5 Na5 Kd6 Nf6 Ke7 Nac4 Kd8 Rh5 Be7 Rg5 Qc3 Rg3 Qd3 Re3 Qa3 Re2 Qc3 Ra4 Qg3 Ra2
3b1Q2/N1p4p/3nBN1P/2n2B1K/3R2B1/q1QrnBqq/1q4p1/1b1N1r1k w - - 0 1 legal: proof: d4 a5 c4 f5 g4 fxg4 b4 d5 bxa5 dxc4 d5 e6 Be3 e5 Bd4 exd4 a4 Kd7 h4 Kd6 e4 Ke5 Ke2 Kf4 d6 g5 d7 b5 a6 g3 e5 g2 h5 b4 a5 b3 e6 b2 a7 g4 a6 g3 h6 c3 e7 c2 e8B c1Q Nc3 b1Q Qb3 Bg7 Bh5 Bf6 Ra4 Qa1 Bg4 Bg5 Nf3 g1Q Ne5 g2 Rh3 Qh2 Nd1 Qaa3 Qc3 Nf6 f3 Qde7 d8N Bf5 Nc6 Ne4 Nd7 Qg7 Nf6 Nd7 Rc4 Rad8 a8B Ndc5 Na7 Rhg8 Bd5 Rgf8 Be6 Nd6 Kf2 Qg8 Bd3 Qcb2+ Bc2 Be4 Ra4 d3 Rd4 d2 Bd3 Ke5 Bb1 Bg6 Bbf5 Rd7 Nd5 Bd8 Nf6 Qg1+ Kg3 Qh2+ Kh4 Qg7 Be4 Kf4 Bd3+ Be4 Kh5 Qg8 Nc8 Qg7 a7 Rff7 a8B Rf8 Nf2 d1N Na7 Ne3 Nd1 Rff7 Bdc4 Qg8 Bef5 Rf8 Bce6 Qg7 Rh4 Kg3 f4 Bb1 Baf3 Qh1 Bh3 Kh2 Bhg4+ Kg1 Rh3 Qh2 B5e4 Kh1 f5 Ba2 Ne8 Bb1 f6 Qg8 f7 Qg7 Be4f5 Qe5 Nf6 Qg3 Ng8 Nb5 Rb4 Rd3 Nf6 Nd6 Rd4 Re8 Bed5 Re4 f8Q Rf4 Be2 Rf2 Bef3 Rf1 Bde6 Qhxh3+
2B2B2/1P6/b3B3/1Qbqn2K/Nqpk4/pRpq2rb/n6Q/2rR1RqR w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Ne4 g2 Ng3 hxg3 Qa4 Qf6 Qd1 Qd8 d4 Kd7 e4 Ke6 Ke2 a5 Kf3 g5 Kg4 c5 h4 c3 b4 a4 e5 Kd5+ e6 a3 h5 Nd7 b6 Ne7 h6 Rg8 b5 Nc6 b7 Nb4 b8R Ne5+ Kh5 g4 b6 Ba6 h7 Na2 Ne2 g1Q h8Q g2 e7 g3 e8B Qe3 Qd3 g1Q Bh3 g2 Qb5 Rg3 Bed7 Qe1 Bc8 Qd3 Bh6 g1Q Bhe6+ Ke4 Rb1 Qd5 b7 Bd6 Rb3 Qeb1 Bf8 f5 Nc1 f4 Qh6 c4 Qh8 Qc5 d5 f3 Qh6 Be7 d6 f2 d7 f1B d8R Bh3 Rd7 Qdd5 Nd3 Qb4 Nc5+ Kd4 Na4 Qd3 Qd2 Bc5 Qh2 Rg2 Rf7 Rc2 Rf1 Rc1 Bcd7 Qgg2 Rd8 Qg1 Bc8 Rb8 Rd7 Ra8 Rd1 Rb8 Rf7 Ra8 Rff1 Rb8 Bcd7 Rd8 Bc8 Rd6 Bf7 Rg6 Bfe6 Rg3
1r1R4/1PqB1nqK/k1rN1N1n/1b1QR2Q/pQ2r1p1/2qb3p/8/1q4RQ w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 e5 Nd2 fxg6 Nb1 g5 Ra2 g4 Ra3 Bc5 Ra1 Bf8 h4 e4 Bd2 e3 Bh3 exd2+ Kf1 Na6 Kg2 Nf6 Kh2 Nb8 Bf1 Ng8 Kg3 Ne7 Kg2 Ng8 Nf3 g5 Kg1 g3 Kg2 g4 Ng1 Bb4 Nf3 Be7 Ng1 Bg5 hxg5 Qa5 Rh5 Qb6 Rh1 Qd8 c4 h5 f4 a5 b4 d5 e4 Kd7 c5 Kc7 g6 Kb7 e5 h4 f5 a3 g7 d3 c6+ Kb6 f6 d4 c7 a2 f7 a4 f8Q Nc6 b5 Nh6 g8Q Ba6 c8R Kb7 e6 Ne5 e7 Ka7 e8Q Qc7 Na3 Nef7 Rd8 Rb8 b6+ Kb7 Qb1 d1R Nc4 d2 Nf3 d3 Ng5 Re1 Ne4 d1B Qfb4 d2 Rg1 Be2 Nf6 Bb5 Nd6+ Ka6 b7 d1Q Qe5 Qd2 Qh5 Rc1 Q1e4 Rc3 Re1 a1Q Qed5 Rc5 Qh7 Qdc3 Qhb1 Bed3 Re5 Rc6 Qd1 Bg6 Bd3 Bh7 Bf5 Re8 Bd7 h3+ Kh1 g2+ Kh2 Qe1 Re2 Rc3 Rf1 Qa2 Ne4 Qb3 Re3 Qd2 Kg3 g1Q+ Kf4 Qbb2 Qb1 Ne5 Kg5 Nef7+ Kf6 Re5 Kg7 Rc6 Qd1 Bf5 Qf3 Qdd4 Qh1 Qbc3 Rfe1 Qf1 Rg3 Bg6 Re2 Qb1 Rg1 Qcc1 Ree1 Qg5 Nf6 Qc3 Ref1 Re8 Rf5 Re2 Re5 Bgd3+ Qg6 Re1 Kh7 Re4 Qh5 Qg7+
2N1k3/PNnRb3/Bp3Q1K/r6p/p1qn3Q/7n/bB4q1/NNr2bnB w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 a5 Bd6 Ra3 Bf8 Ra4 bxa4 Kf2 c5 Kf3 f5 g4 h5 d4 h3 e4 c4 a6 b6 a7 h2 g5 c3 e5 c2 g6 Bc5 e6 Bd6 g7 Ba3 e7 Nf6 g8B Nc6 d6 Nd5 Ba6 Qc7 Qf1 Be6 Ne2 Rc8 Bb2 c1N Qh3 Rd8 Rd1 h1N Qh4 Nf2 Bh7 Nh3 d7+ Kf7 e8N Be7 Rd3 Qb7 Rd1 Nc7 d5 Rg8 d6 Rg1 Rd2 Ba2 Nd4 Ne2 Nc2 Rc1 Na1 Rc8 d8Q Neg1+ Kg2 f3+ Kg3 f2 d7 f1Q Nd6+ Ke6 Qf8 Qc4 d8N+ Kd7 Qff6 Nd4 Bg8 Qh1 Bd5 Qe4 N8b7 f4+ Kh2 f3 Kg3 Rf8 Nc8 f2 Rd1 Qee2 Bh1 f1B Rd2 Ke8 Rd3 Nf2 Kf4 Rg8 Rd2 Rg5 Rd1 Ra5 Rd2 Bc5 Kg5 Be7+ Kh6 Nfh3 Rd1 Qg2 Rd3 Nc2 Rd7 Nd4
nNk1b1r1/2r1Rn1B/1BQ3B1/2Rn1p2/2qRp1Kb/2Q1p1Pn/2b3b1/7B w - - 0 1 legal: proof: e4 g5 d4 a5 b4 axb4 g3 h5 d5 h4 d6 h3 e5 cxd6 Nc3 dxe5 Nd5 e4 Nf4 e3 Ng2 hxg2 f4 Nf6 fxg5 Ng8 Ke2 d5 Kf3 Kd7 h4 e5 c4 b5 a4 b3 h5 b4 c5 d4 h6 b2 h7 b1N a5 d3 g6 d2 g7 b3 a6 b2 a7 Na6 Kg4 Qc7 Qf3 d1B Ne2 g1N Bd2 Be7 Nd4 Nh3 Ba5 Nc3 Bb6 b1B Bd3 Bbc2 Bg6 Nd5 Ra4 Bh4 Nc6 Bb7 Rd4 Rc8 a8B f6 Nb8+ Kd8 c6 Ba4 Re1 Bdc2 Rc1 Bb5 Qe4 Bba4 Qd3 Bb5 Qc3 Nh6+ Kf3 Rg8 h8R Nf7 Kg4 Nc5 Rh7 Nd7 Rc4 Bba4 Rd1 Bb5 Rdd4 Bba4 Ba7 N7b6 Rc5 Ba6 Bb7 Na8 Bb6 Bad3 Bh5 Be4 Bg6 Re8 g8B Bg2 Rg7 Bb5 B8h7 Rg8 Ba6 Bba4 Be2 e4 Bf3 Bf1 Bh1 Bg2 Ba7 Qe7 Bb6+ Rc7 Rd1 Kc8 Rd4 Ra7 c7 Be8 Rcc4 Qb4 Rc5 Nd8 Rd7 Nf7 Re7 Qc4 Na6 Kb7 Rb5 Kc6 c8Q+ Kd6 Rc5 Rd7 Qb7 Rc7 Re6+ Kd7 Nb8+ Kd8 Qc6 Kc8 Re7 f5+
2nQ1R1Q/N4n2/2qR1BQr/n7/N1p5/p2r1N1n/qbK2Pp1/n1N2k1r w - - 0 1 legal: proof: e4 b5 c4 d5 a4 bxa4 g4 dxc4 e5 h5 Bg2 Bf5 Bf3 f6 gxf5 fxe5 Be2 e4 Bg4 hxg4 h4 Kf7 b4 Kf6 d4 e5 Kd2 c5 d5 g5 d6 a5 b5 a3 h5 e3+ Kc3 a4 d7 g3 h6 g4 b6 Kg5 f6 Kf4 h7 g2 f7 a2 b7 a3 Rh2 g3 Nd2 e2 Qf1 e1N Rh6 e4 Ra6 e3 Bb2 e2 Ngf3 g1N Nb3 g2 Nh4 Qc7 d8N Nc6 b8N Nd3 Re1 a1Q Kc2 c3 Rb6 c4 Nd2 Nh3 Rb4 Qa2 Nb7 Bg7 Nb3 Nde5 f8Q+ Nf7 Nd4 Na5 Nhf3 Ne7 Rb6 Qc6 Nc5 Nc8 Na4 Ra7 Rd1 e1R Qd3 Rd7 Qd8 Rh1 Nb3 Be5 Qg6 Rd3 Na6 Bf6 Nc7 Bg7 Rb8 Be5 Kc1 c2 Nb5 Bc3 Na7 Bd4 Ng5 Bg7 Bf6 Kg4 Ne6+ Kf3 Ng5+ Ke2 Nf3 Ne7 Ne1 Nc8 Rd2+ Kf1 Nf3 Re8 h8Q Re5 Re2 Rh5 Re6 Rh6 Rd6 Rc3 Kd2 c1N+ Kd1 Re3 Nbd4 Ncb3 Ne2 Rc3 Nc1 Re3 Be7 Bd4 Bf6 Bb2 Kc2 Rd3 Qc7 Ne7 Rf8 Nc8 Qd8 Na1#
2kb2Bq/Qn2qbb1/1Kb4q/4R1B1/1PQR4/n1R2N1R/b1p2prp/5Q2 w - - 0 1 illegal: No possible last move
qk3bRn/2n1r3/pn2pN2/n2p4/1qRR1b1P/NQ6/3N2b1/NK1BQ2n w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 f5 e4 fxe4 f4 b5 f5 bxa4 Be3 h6 Bg5 hxg5 f6 a6 Kf2 Ra7 Ke1 Rb7 Kf2 Rb5 Ke1 Rf5 gxf5 Rh4 Kd2 Rh7 Ke1 Rh8 Kd2 d5 Kc1 Kd7 c4 Kc7 h4 d3 b4 g4 c5 g5 f7 e3 f6 g3 b5 g2 c6 g4 Nc3 d2+ Kc2 g3 Qb1 d1N Ra2 e2 Ra3 e1Q Na2 Bh3 Nf3 g1N Nc1 g2 Nd2 e6 Be2 Nf3 Rd3 g1B Rd4 a3 Ncb3 a2 Na1 Nd7 b6+ Kb8 b7 Nf2 Bd1 Nfe5 Qc1 Rh7 c7+ Ka7 b8N Nb6 Nd7 Ng6 c8N+ Ka8 Rh2 Nh1 Nd6 Be3 Nb5 Bg2 Na3 Bf4 Qb2 Rg7 Qb3 Nh8 Rh3 Ka7 Rc3 Qa8 Rcc4 Rh7 Ne5 Kb8 Ng4 Ne7 Kb2 Nf5 Kc1 Ng7 Kc2 Bc5 f8R+ Ne8 Rg8 Bf8 f7 Nc7 Nf6 Rg7 Nde4 Qb4 Nd2 Rh7 Ne8 B8d6 f8Q Re7 Qf6 Bc5 Qe5 Bd6 Kb2 Bc5 Qe1 Bcd6 N1c2 a1N Kb1 Bc5 Qb2 Nb3 Na1 Na5 Qb3 Rg7 Nf6+ Bf8 Qe2 Rh7 Qe1 Re7
bq1kN3/Q1pbqBQ1/B1b1rNp1/1N4qQ/b1K5/pn3n2/2PR4/2b3N1 w - - 0 1 legal: proof: e4 b5 d4 e5 a4 bxa4 f4 exd4 e5 a5 e6 Ra7 Kf2 Rb7 Ke2 Qg5 Ke1 Qd8 g4 g5 Be3 Rb5 Bc1 Re5+ fxe5 Nh6 Be3 Ng8 Bf4 gxf4 b4 Ne7 g5 Nd5 g6 Nf6 g7 Ng8 Ra3 Nc6 Rg3 Nb8 Rg6 hxg6 Kd2 f5 Kd3 d5 h4 a3 b5 a4 h5 f3 e7 f2 b6 f4 h6 a2 h7 a1Q b7 a3 Qh5 f3 Qg4 Bd7 Nh3 Qb2 Nf4 Nh6 g8Q Nf7 Rh6 Ng5 Nh5 Na6 b8N Nc5+ Kd2 d3 Qa4 d4 Qb4 Nb3+ Kd1 d2 Ba6 f1B Qa5 f2 Nc6 Bb5 Qg7 f1B Nc3 Bg2 Na7 Nf3 Ne2 Ba4 Ng1 Bdc6 Ke2 d3+ Ke3 d1B Nb5 d2 Qb6 Bh3 Qa7 Bhd7 Kd3 Qc1 Kc3 Qb8 Kc4 Rg8 h8Q Be2+ Kc3 d1Q Kb4 Bf1 Rh7 Bg2 Kc4 Qg5 Rh6 Bg4 Rh7 Kd7 e8N+ Kd8 e6 Qd6 Nhf6 Qe7 Rh2 B4h3 Qh5 Bh1 Qf7 Bh6 Qg7 Rf8 Nh7 Rf5 Nhf6 Re5 Rg2 Qg3 Rh2 Bc1 Rg2 Qg5 Re2 Rd5 Rd2 Rd6 Qg4 Ba8 Qh4 Nfd4 Qh5 Rb6 Ned6 Qf8 Nf5 Bhe4 Nfd6 Nf3 Ng4 Qff6 e7+ Kd7 e8B+ Kd8 Bf7 Qe7 Nf6 Bd7 Nde8 Re6 Bg8 Beb7 Bf7 Bc6
2K3Nb/p1b1nn1b/1r3N1b/5QQp/b1k1pP2/4B3/R2b1q1N/1N1BQ1b1 w - - 0 1 legal: proof: e4 d5 h4 f5 f4 b5 c4 dxc4 a4 bxa4 b4 Na6 h5 g6 Ra3 g5 Rf3 g4 g3 gxf3 g4 fxe4 g5 Rb8 Bb2 Rb6 Bc1 Rg6 hxg6 Bf5 Rh6 Be6 Rh1 Bc8 Kf2 Kd7 Kg3 Ke6 Kg4 Kd5+ Kh4 e5 d4 h5 g7 c5 b5 e3 b6 f2 b7 c3 b8N e2 Nd2 e1B Nh3 a3 Qf3+ e4 Qd1 a2 Bd3 a1B Be2 f1B+ Nf2 c4 Nb1 c2 Rh2 c3 Nd7 Rh6 Be3 Qb6 g6 c1B Kg5 c2 Kf5 Nc5 Ng4 Ba5 Qe1 Bcd2 Bd1 Ne6 Ndf6+ Kc4 d5 c1B d6 Ng5+ d7 Nf7 Rf2 Bd4 Nh2 Bcb2 Re2 Qc5+ Ke6 Ne7 g8N Bc7 g7 Rg6 Rg2 Bd3 Rf2 Bc2 Rg2 Ba4 Re2 Bb7 d8Q Bbc6 Qc8 Be8 Nh6 Bbc3 g8Q Ba1 Qg7 Bab2 Ng8 Bbc3 Qh7 Bh6 Qd8 Qb6+ Qd6 Qb2 Qe5 Bdb6 Qg5 B3e5 Bc5 Qd4 Rg2 Qf2 Be3 Qh4 Bc5 Be3 Ra2 Nd6 Bd4 Bd2 Bf2 Rg7 Qhf5 Bg6 Nd5 Bh7 Bg3 Bg1 Bf2 Nf7 Bb6 Qf2 Be3 Kb5 Kd7 Rg6 Bd4 Rc6 Be3 Bh8 Ndf6+ Kb4 Nd5+ Kc4 Ndf6 Ng6 Kc8 Ra6 Ne7 Rb6 Neg8 Ne7+
6N1/k2B3r/q7/R3Q1rp/3Nq1pK/B2qbQb1/rpPB3B/2n2brN w - - 0 1 legal: proof: g4 a5 a4 c5 d4 g5 b4 axb4 h4 gxh4 e4 f5 g5 d5 Ra3 Nc6 Rg3 Na5 Rg4 fxg4 Rh2 Nc4 Rh3 Ne3 Rh2 cxd4 Rh3 d3 Rh2 d4 Rh1 Nd5 exd5 Bd7 Ba3 Be6 Bc1 Bc8 f4 Kd7 Kf2 Kc7 g6 Kb8 a5 h5 a6 e5 d6 b5 f5 b3 f6 h3 Kg3 b2 d7 b4 g7 e4 f7 h2 Bf4+ Bd6 f8B b3 Nf3 d2 Na3 b1R Ng5 d3 Nf7 b2 Rg1 h1Q Qe2 d1Q Be5 d2 Qf3 e3 Be7 e2 Bf4 Nh6 g8N Qb6 d8B Ka7 Bg2 Rh7 Ng5 Nf7 Nh3 e1B+ Nf2 Ne5 Bc7 Nd3 Bf1 Nc1 Bb5 Qe2 Bd7 d1R Qe4 Bc3 Qe5 Rd5 Bd2 Qhe4 Nh1 Bd4 Kh4 Be3 Rf1 Q2d3 Rf5 Bdc5 Bed6 Bf4 Bf8 Qe6 Bcd6 Bce3 Nb5+ Kb6 a7 Ba6 Nd4 Bb5 Bfe7 Kb7 Bc7 Qa6 Ba3 Ra1 Nh6 Ra2 Rg5 Rg8 Rf5 Rg5 Ng8 Bc4 Bcd6 Kb6 a8Q Ra5 Qf8 Ka7 Bc7 Ra1 Be7 R5a2 Ba3 Qc3 Qff6 Bf1 Qc6 Qcc4 Bcd6 Qed3 Qf3 Qcc6 Bc7 Qce4 Qf2 Bh3 Qe6 Ne2 Nf3 Bh2 Ra5 Rg1 Nd4 Nc1 Qf3 Bf1 Bg3 Bg2 Qe5 Bf1 Bf2 Bhf4 Bg3 Qa8 Bh2 Qe8 Qf5 Qee4 Qe5 Bg3+
2N2B2/1q1QqnN1/rq4P1/3p3b/1kb1B2b/2pq2B1/1p1NQ3/RN1K1r1r w - - 0 1 illegal: No possible last move, all moves rejected
1R1q2b1/2rnb1Pn/n1Q5/kpN1N1n1/q2q4/3RR1p1/1p1R4/1QKB1bN1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Qd3 fxg6 Qd2 g5 Qd1 g4 h4 e4 Bd2 e3 Bh3 exd2+ Kf1 Nf6 Kg2 Be7 Kg3 Bf8 Bf1 Ng8 Kh2 Ne7 Kg2 Ng8 Rh2 g5 Na3 b5 Rh1 g3 Nb1 g4 Qc1 Ra6 Qe1 Rg6 Qd1 Rg5 hxg5 Qe7 Nh3 Qf6 Ng1 Qd8 a4 d5 c4 Kd7 e4 Kc7 f4 Kb6 g6 h5 e5 h4 g7 d3 c5+ Ka5 f5 d4 f6 Be7 f7 Na6 f8N Nf6 c6 Nh7 c7 Be6 c8R Bg8 Be2 h3+ Kf1 h2 e6 g2+ Kf2 b3 Nc3 g3+ Kf3 Qb6 Ng6 Qd8 Qc1 d1N Ne4 d2 Qb1 d3 Rb8 Ne3 Ra2 d1B Ne5 d2 Nc5 Ng4 Kf4 Ngf6 Ke3 Bc2 Bd1 Bd3 Rc2 Nd7 Rc3 Bf6 e7 Bf1 e8R Bh4 Rd3 Be7 Bc2 d1N+ Kd2 Nf2 Kc1 Ne4 Bd1 Neg5 Rd2 Bf6 Re6 Be7 Red6 Qf8 R6d3 Qd8 Nh3 g1Q Re3 Kb4 a5 Qf2 Rg1 h1Q Rdd3 Qb7 Rg2 Qa7 Ng1 Qa2 Rgd2 Qa4 Ne4 Qd4 Nc5 Nc7 a6 Ka5 a7 Na6 a8Q Bc4 Rf2 Re8 Rdd2 Bg8 Rdd3 Rf8 Qc6 Rf6 Qg2 Rc6 Rfd2 Rc7 Qc6 b2+
1R5b/3QK1Pn/1pRQ4/3p2kq/B2N1p1q/1R3n1b/Q1b1n1q1/2RNrq2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 f4 gxf4 g4 a5 g5 axb4 Ba3 e5 Kd2 Ra6 Bc1 f3 h5 Rg6 hxg6 f2 Kd3 Na6 Bf4 exf4 Kd2 Nb8 Kd3 Ke7 Ke4 f5+ Kd5 h5 e4 d3 c4 d2 a4 b3 g7 b2 a5 f3 c5 h4 g6 Kf6 a6 f4 e5+ Kg5 a7 h3 a8R h2 e6 b6 e7 Nf6+ Kd6 Nh7 g8Q Bg7 e8Q Nc6 Bb5 f1N Qa2 f2 Ba4 Ng3 Nc3 b1B Nge2 f1Q Rb8 Bc2 Nd4 Ne5 c6 Ne2 c7 Nf3 Rc1 Rf8 Rb1 Bh8 g7 Rf7 Qee6 Re7 Rb3 Qg2 Rf1 h1Q Re1 Qh5 Qh3 Ba6 c8R Re4 Rc6 Bc8 Qe6 Qf6 Rg1 Qfh6 Ke7 d5 Qdb1 Bd7 Rc1 d1Q Qbb2 Qh4 Qba3 Q6h5 Qd6 Qdf1 Nd1 Re3 Qee5+ Bdf5 Qee6 Bh3 Qd7 Nc3 Qd6 Re1 Qd7 Ne2 Qdd6 Nh2 Qed7 Nf3
1kr2n2/2rnP3/pnr4R/1qbQ1q2/1Q2NNq1/1NNpQB2/2pR4/5K1n w - - 0 1 legal: proof: c4 b5 h4 e5 a4 bxa4 h5 d5 h6 dxc4 Nc3 gxh6 Nb1 h5 Rh3 h4 Rh2 Bh3 Rh1 Bc8 e4 Nf6 d4 Be7 d5 Bg4 Be3 Ba3 Bd4 exd4 f3 Bf5 e5 Be4 fxe4 Ng8 Bd3 Bd6 Bf1 Bf8 g4 Kd7 b4 Kc8 e6 h5 e7 c5 e8Q f5 g5 a3 b5 c3 e5 h3 e6 c4 d6 d3 g6 h2 b6 c2 g7 c1R Qg6 f4 Qf6 a2 Qg5 c3 Qf6 a6 Nd2 f3 Qg6 h4 Qf5 h3 Qf4 Rh6 Rb1 a1N Qd4 Nf6 g8N Nd5 Bg2 f2+ Kf1 Nb3 Qe3 Qd7 Bf3 Qb5 Rb2 Nd4 Nb3 Nd7 b7+ Kb8 Rd2 N5b6 Ne2 Rc2 Nf6 Ra7 Rg1 h1N Rg6 h2 Ne4 Rh8 Rh6 Be7 Qc1 Rc8 Qa3 Rc6 Qc5 Rc1+ Kg2 Bf8 Qd5 Be7 Kh3 f1Q+ Bg2 Rc8 Nbc5 Na8 Rc2 Qb1 Rg6 Nf2+ Kg3 h1Q Rh6 Qh3+ Kf4 Nf6 d7 Kc7 d8N Nd7 Rd2 Qg1 Bf3 Nh1 Qf5 Qb6 Nb3 Bb4 e7 Qgg6 Qf2 Qhg4+ Ke3 Ne6+ Qc5+ Qc6 Qd5 Q6f5 Qg1 Nef8 Ne6+ Kb8 N6f4 Kc7 Qb5 Bd6 Qb4 Qcb5 b8Q+ Kc6 Qe1 Nab6 Qa8+ Kc7 Qd5 Kb8 Qg1 Rac7 Qe1 Ng3 Kf2 Nh1+ Kf1 Rb1 Nbd4 Rb3 Qf2 c2 Qe3 Rbc3 Nb3 R3c6 N2c3 Bc5
1R2R2Q/1r1qp2q/rqQ1n3/B2R2PK/1Q5n/3pqN1k/3QB1p1/1r1b3n w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 a5 f5 axb4 e3 d5 f6 d3 Nh3 d2+ Ke2 gxf6 Ng1 f5 Bb2 f4 Ba3 Be6 Bc1 Bc8 g4 h6 Nc3 d4 Ne4 d3+ Kf2 Bg7 Ng5 Bd4 exd4 Bd7 Ne4 Bc8 g5 h5 Nf6+ Kf8 Ng4 Ke8 Kf3 hxg4+ Kg2 Rh5 Kf2 Rh8 a4 Kd7 c4 Ke6 h4 Kf5 h5 b5 d5 f3 Kg3 b3 Kh4 g3 h6 b2 c5 b1Q c6 g2 d6 b4 a5 f2 c7 b3 h7 b2 d7 Na6 Qe1 d1N Kh5 Nc5 a6 Ne6 a7 Nh6 Be2 f1Q Qd2 Qf3+ Kh4 Nf2 Ra6 Qe3 Rh2 Nh1 Bf3 Rb8 a8R Rb7 Kh5 Rg8 h8Q Rg6 R8a7 Kf4 Bc6 Kg3 Ra8 f5 Rb8 f4 Nf3 Nf5 Ra5 Nh4 Rd5 Qe8 d8Q Qd7 Qd4 Rf6 Qh8 Rg6 Ng1 f3 Q4b4 f2 Nf3 f1Q Ba4 Qff2 Bd1 Qe4 Be2 Qfe3 Qd1 Rf6 Bd2 Rg6 Qc2 Qbg1 Bc3 b1R Qd2 Qb6 Qg8 Qge3 Qh8 Nf5 Rh4 Rf6 Rf4 Nh4 Rff5 Rg6 Rf8 Kh3 Re8 Qf5 Qbb2 Rf6 Ba5 Qfe4 Qh6 Qh7 Qa3 Qd8 Qab4 Bd7 c8Q Ba4 Qc7 Bd1 Qc6 Qd7 Qcc3 Qa7 Qcc4 Qh8 Qe4 Nd8 Qg6 Ra6 Qgb6 Ne6 Qc6 Qab6 Qh7 Qg7 Qh8 Qh7+
kbb5/rp5K/q3Rr2/nq1pp1Q1/PRr2b2/3q1R2/Nq3Q1N/2NR3B w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 g4 fxe4 f4 a5 f5 axb4 Bg5 h6 Bc1 Nc6 g5 Ne5 Bf4 Ng4 Be3 N4f6 gxf6 Qc7 Bf4 Qd8 Bg5 hxg5 Kf2 d5 Kg3 Kd7 Kg4 Kc7 a4 Kb8 h4 e5 c4 e3 f7 b3 h5 b2 c5 e2 h6 e1R Kh5 d3 Kg6 d2 h7 g4 f6 g3 c6 g2 Qc1 d1Q Qe3 Qb6 Nc3 Bd6 f8R Ra7 c7+ Ka8 f7 Qb5 Nf3 g1B Rh6 Bh2 Bg2 Bf4 Na2 Rf1 Nh2 b1Q+ Be4 Qbc1 Bh1 Qcb2 Qg3 Qdb3 Qg5 Rf2 Rd1 Q3d3+ Kh5 Qa6 Re6 Ne7 Nc1 g6+ Kh6 Nc6 Na2 Rg8 h8N Na5 Kh7 Qab5 Qh6 g5+ Ng6 g4 Qh5 Be3 Qg5 Rf5 Nf4 g3 Ne2 g2 Nec1 g1Q Rfe8 Bf4 f8Q Qa6 Qff6 Qc5 Rf8 Qcb5 Rf7 Bd7 c8R+ Bb8 Rc4 Rc8 Rb4 Rc5 Qe7 Rc3 Qc5 Bc8 Qf2 Rf6+ Kg7 Rg6+ Kh7 Rc4 Rf5 Be3 Rf3 Bf4 Kh8 Rh6+ Kg7 Rg6+ Kh7 Rf6+
3N2r1/2kn4/5q2/1p2N2N/2p1PQnQ/bnn2bnN/3RRp1B/1bKn1R2 w - - 0 1 illegal: No possible last move
r3Q1r1/p1Kbr1N1/3Q2Nk/1Q1R2pP/2rQ4/5N2/r1nB2Rp/1b3rbq w - - 0 1 illegal: No proof kernel
Bbr2rBB/q1b1N3/2b5/1b2K3/2P2pN1/p2R2nq/QQ1p3N/Bb2b1k1 w - - 0 1 illegal: No possible last move, all moves rejected
1k3b2/1N4BR/1p5q/1BQqK2n/rrQpP2n/n7/Np1rQ1r1/Q3B2n w - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 d4 cxd4 f5 b6 f6 exf6 Bg5 f5 Nd2 f4 Nb1 f5 Bh6 f3 Bc1 f4 a4 Bb7 Ra3 h6 Rc3 Be4 Rc5 h5 Rg5 Bf5 gxf5 Nc6 Rg3 Nb8 Rg4 hxg4 Kd2 g5 Kd3 d5 h4 Kd7 c4 Kc7 h5 f2 h6 b3 f6 g3 c5 f3 f7 g2 c6 g4 e3 g3 h7 b2 a5 Na6 Rh3 Kb8 Bd2 Nf6 Qe1 Nc7 a6 Nh5 Nc3 Nb5 Na2 Na3 Ne2 g1N Nec1 g2 Qe2 Qd6 Rh1 Qh6 Be1 Rg8 h8B Rg4 Bg7 Re4 Kd2 d3 Kc3 d2 Nb3 d1R Na5 Rb4 e4 Rd2 Nb7 Ra7 Qd1 Ra8 Bb5 f1N Qe2 f2 Rh4 Nf3 c7+ Kc8 a7 g1R Rh1 Nfg3 Rh4 f1Q Rh3 Rb8 a8Q Rg2 Qa4 Nh1 Qad1 Bd6 Qa1 Nh4 Rh2 Be7 Rh3 Qf5 f8Q+ Bd8 Qc5 Ra8 Rh2 Be7 Qcc4 Bf8 Rh3 Rc2+ Kd4 Raa4 Rh2 Qd7 Ke5 d4 Qc5 Qdc6 Qcc4 Rd2 Rh3 Kd7 c8Q+ Ke7 Qc2 Qh8 Bg3 Nf6 Nd6 Qd5+ Kf4 Nf3 Q8c5 Kd8 Qc2c4 Qh7 Rh5 Nh4 Be1 Qg6 Rh7 Qgh5 Bc6 Kc7 Nb7 Kb8 Be8 Qc6 Bd7 Qh6+ Ke5 Nh5 Be8 Qhg6 Bd7 Qf7 Be8 Qh6 Bb5 Qd5+
Qr1r1R2/b2R2p1/n5b1/1p3rQ1/NB1Qn1rp/2b1QP1k/2K1b2n/R6N w - - 0 1 illegal: No proof kernel
Qnb1N2k/1q6/1pp3pN/1Nb3R1/rrqnQ1Q1/3P2pK/B1R4r/3n3Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Bb2 exf5 Bf6 f4 Bh4 Qd7 Bf2 Qd8 Bg3 fxg3 a4 f5 e4 Kf7 h4 g6 d6 Kg7 d7 b6 e5 b3 a5 b2 e6 c6 h5 g2 Kf2 f4 h6+ Kh7 a6 f3 Kg3 f2 a7 Nf6 e7 Kg8 e8N Ba3 h7+ Kf8 Rh5 Nd5 Ne2 g1N Nbc3 b1R Nd4 Nf4 Bc4 f1Q d3 Nf3 Rg5 Nh3 Ra2 Rb4 Nf5 Nd4 Nh6 Qe7 d8Q Nf2 Nb5 Qb7 Qd5 Qg1+ Kh4 g3 Qg4 Qc1 Rc2 Nd1 Ba2 Qf4 Qg2 Qff7 Q2e4 Qc4 Ned6 Kg7 Kh3 Rf8 Ne8+ Kh8 Qd5 Rf4 Qg2 Ra4 Qe4 Bc5 Qe1 Nd7 Qe4 Rb8 a8Q Rb4 Qa3 Ra8 Qa7 Rf2 Qb8 Ra6 Qa8 Raa4 Ng8 Nb3 Kh4 Rd2 Nec7 Kg7 h8Q+ Kf8 Ne8 Nb8 Qhh5 Nd4 Nh6 Rf2 Qh3 Rd2 Q5g4 Re2 Qhh1 Rf2 Nec7 Kg7 Kh3 Kh8 Ne8 Rh2+
2RB1r2/b1q5/P3B2k/1N5p/1pB1pnq1/2Kb1qQn/3Rp1r1/n4RQB w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 g4 Kf7 a4 Kg6 f4 b5 d4 e5 Kd2 h5 d5 e3+ Kc2 b3+ Kc3 e2 d6 e4 a5 b2 d7 Ba6 Nf3 Ne7 Bg2 Rg8 Ne1 Nbc6 Nd3 Ne5 Qg1 Nf3 Na3 b1Q Ra2 c5 Rb2 Qc7 d8Q Bh6 Qd7 Raf8 f5+ Kh7 Bf4 Qf1 Qd6 Ng6 f6 Qf2 Bc1 Nf4 f7 Qf1 Rd2 b4+ Kb2 b3 g6+ Kg7 Nb4 Ng5 Kc3 b2 Nb5 Ngh3 g5 Qf3+ Qd3 Qg4 Qg3 b1Q Bb2 Qf1 Bc1 Rb8 f8R Qf2 Rc8 Qff3+ Qe3 Rf8 Rf1 Rb7 Bh1 Rb6 Kc2 c3 Qeg1 Rc6 Kb3 c2+ Kc4 Rcf6 Bb2 c1N Bd4 Nfd3 Kc3 Nb3 Bf2 Na1 Be3 Kh8 g7+ Kh7 g8B+ Kg7 g6 Bf4 Bd4 Kh6 g7 Rg6 Be6 Be5 g8B Ndf4+ Kb2 Bd6 Bf6 Rg5 Bd8 Be5+ Nc3 Bd3 a6 Qc6 Q3f2 Bb8 Bc4 Ba7 Qe1 Qh4 Nb5 Rg2 Qg3 Qhg4 Bge6 Qc7 Kc3 cxb4+
1r6/2rb2pr/1p6/1RnN1Pp1/1b3Rp1/Q1bRK3/2qQ1Qn1/2QqN1Bk w - - 0 1 legal: proof: d4 e5 c4 f5 g4 fxg4 b4 a5 Bg2 axb4 Be4 exd4 Bd3 d5 Bg6+ hxg6 cxd5 g5 Kd2 Kf7 f4 Kg6 h4 Kf5 a4 Ke4 h5 c5 d6 d3 h6 b3 d7 c4 f5 b2 a5 b6 h7 Bb4+ Nc3+ Kf4 e4 Kg3 e5 Kg2 e6 b1R a6 Qf6 d8Q Rb2+ Ke3 d2 e7 Ra7 e8Q Rc7 a7 Ne7 a8Q+ Qc6 Ra4 Bd7 Nf3 Ng6 Nd5 c3 Ra5 c2 Rf1 Nh4 Rb5 Bc3 Qa3 Na6 Ne1+ Kh2 Qee7 Nc5 Rf4 Kh1 Qe6 Re8 h8R Rb3 Qe2 d1Q Qf2 Rb1 Bd2 c1B Qc8 Rg8 Qd6 B1b2 Rh5 Bb4 Bc3 Rc1 Bd4 Rh8 Rh6 Rh7 Re6 Rb7 Re8 Rb8 Rd8 Ne4 Qcc7 Qcc2 Qcc3 Ba1 Qcd2 Bac3 Qc5 Ra1 Qac1 Ra7 Qf8 Ba5 Qfa3 Rc7 Bc5 Bab4 Ne7 Bc8 Rd3 Bd7 Bd4 Nc5 Nd5 Bc8 Qa7 Be6 Qaa3 Bd7 Be5 Ng6 Rfd4 Ra7 Bh2 Rc7 Rf4 Nh4 Bg1 Ng2+
8/1br2p1n/q2BQ2p/rn4b1/N3RBQB/K1B3P1/p3q1pk/2RQ1r1q w - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 f5 h4 f6 h3 Kf2 exf6 Ke1 f5 Qd3 f4 Qd2 Bd6 Qd1 Bf8 g3 Qg5 Bg2 hxg2 h4 Qh6 h5 Qd6 h6 Qc6 h7 Ba6 Nc3 Qe6 Nd5 Qe7 Ne3 Qd8 Ng4 Bc8 Nh6 gxh6 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb3 Kg4 e4+ f3 c5 a5 b6 d5 b7 d3 e5 d2 e6 d4 e7 d3 e8Q a4+ Ka3 Ra5 b4 Qf6 b5 Nc6 b8B Na7 b6 Be7 b7 Qa6 Bd6 Nf6 b8B Bb7 Ne2 f2 c6 f1R c7 Rf8 h8B Nh7 Bcb2 Bg5 Rc1 Rg8 Rg1 Kh3 c8Q+ Kh2 Bbc3 Rg6 Bf4 Rc6 Bbd6 Rc7 Bhf6 Nb5+ Kb4 a3 Qg4 a2 Qee6 Rf2 Re1 Rf3 Nd4 Rf1 Nb3 Bc6 Re4 Bb7 Qdf3 d1Q Nc5 d2 Na4 Qe2 Bfe7 Na7 Ka3 d1Q Qd3 Rf3 Bef6 Qh1 Qd1 Rf1 Be3 Bf4 Bh4 Bg5 Bef4 Nb5+
1bBQ2Bk/4P2n/1Nqp1b2/p1B3R1/1K4Qp/2nQnq1p/4r2r/Q4Nr1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 g5 a4 b5 h4 bxa4 f4 gxh4 g5 e5 g6 Nc6 g7 Bb7 f5 Nb8 Ra3 Bd5 Rf3 Be4 Rf4 exf4 Bg2 Bf3 Bh3 Bh5 Bf1 Bg6 fxg6 Bc5 Bh3 Be7 Bf1 Bf8 Kd2 h5 e4 f5 c4 h3 e5 a6 e6 a3 c5 d3 Kc3 f3 c6 d2 c7 a2 c8B a1B+ Kc4 f2 b5 f4 b6 f3 b7 Nf6 g8Q Ne4 g7 Qb6 Qe1 d1N Nd2 Bf6 Ne2 Qc6+ Kb3 Nec3 Rg1 Ne3 Bg2 f1Q Qh7 f2 Nc4 Bd6 Ng3 Qe2 Bf1 Qef3 Qd3 Ke7 g8Q Rh6 Qgg6 Kf8 Qgf5 Kg7 Ba3 Kh8 Bc5 Rh7 Be2 Re7 Qg4 f1R Qgg6 h4 Kb4 Rf2 Qa1 Rh2 Qg4 Bc7 Bf1 d6 Nb6 Nd7 b8Q Nf8 Be2 Ra7 Nf1 Nh7 Bd1 Ra8 Bb3 Ra7 Qa8 Bb8 Rg2 Rg7 Rg3 Raf7 e7 Rg5 Rg1 Rfg7 Bg8 Re5 Qe6 Rgg2 Qd7 Re2 Rg5 Rd5 Qg4 Rd4+ Qc4 Rd1 Qd3 Rc1 Qb7 Rd1 Qbd7 Rde1 Qd8 Rc1 Ng3 Rg1 Nf1 a5+
1qR1N3/p3r2n/p3b3/1pb4b/1R1p1QBQ/B1Q1BK2/P2q1rn1/2Qrk3 w - - 0 1 legal: proof: e4 e5 d4 exd4 h4 g5 b4 gxh4 b5 f5 Nc3 c6 exf5 cxb5 Na4 Qb6 Nc5 Qd8 Na6 bxa6 Ke2 Kf7 c4 Kf6 f4 d5 g4 h5 c5 d3+ Kf2 d2 c6 h3 c7 d4 Nf3 h2 Bh3 h4 Ne5 Nc6 Kf3 Nce7 Rb1 Rh7 Nc4 Ng6 Nd6 Re7 Rb4 Be6 c8Q Qc7 Rg1 Qb8 Qc3 h1Q+ Rg2 Qh2 g5+ Kg7 Re2 Nf6 Bg4 h3 Ne8+ Kf7 Qg1 d1B Be3 Nh7 f6 Qf2+ Ke4 h2 f5 h1R Rc2 Nf4 g6+ Kg8 g7 Kf7 Qh2 Qd2 Qh3 Ng2 Qh4 Rc7 Rc1 Bc5 Rc2 Re7 Rc1 Bdb3 Kf3 Rd1 Rc2 Kg8 Rc1 Bf7 Rc2 Bbe6 Rc1 Bh5 Rc2 Nf8 f7+ Kh7 f6 Kg6 Rc1 Nh7 f8Q Rb7 f7 Rd7 Qd6 Re7 Bg1 Kh6 Qc6 Kg6 g8Q+ Kh6 Qf8+ Kg6 Qe1 Kg5 Qee4 Kh4 Be3 Qh2 Qh6 Rc8 f8B Qb8 Qe5 Rd8 Qce4 Rd5 Q5f4 Re5 Qb1 Re4 Rc2 Re5 Qc1 Re4 Bg1 Re2 Be3 Bd6 Qb1 Rc7 Rb3 Bb4 Bd6 Re7 Qca1 Ba3 Rc8 Bb4 Qfe4 Ba3 Qc3 Bb4 Qbc1 Ba5 Ba3 Bb6 Rb4 Bc5 Qf8 Bhf7 Bh5+ Kh3 Bg6 Kh2 Bf5 Bh5+ Qg4 Kh1 Bg5 Kg1 Be3+ Kf1 Qf6 Bg6 Qf4 Ke1 Bg4 Bh5 Qh4+ Rf2+
qN2RK2/1n3n1r/2Pbr3/p1pb3Q/1Q2r1p1/2B2bk1/1pB3B1/3Q1QRr w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 g4 e5 c4 exf4 Nc3 h5 gxh5 d6 Ne4 cxb4 c5 Qg5 c6 Qd8 Nc5 dxc5 Kf2 Ke7 Kf3 Ke6 Ke4 g5 d4 a5 h4 f3 d5+ Kf6 h6 a3 h7 b3 d6 g4 Kd5 Kf5 h5 f2 d7 b2 h6 a2 Bg2 f1B Bd2 f6 Bc3 Kf4 Ke6 f5 Kf7 Bd6 e4 Nf6 e5 Ne4 e6 Kg3 e7 f4 e8B Be2 Qf1 f3 Re1 f2 Nf3 a1R Rg1 Ra4 Ne5 Bf3 Kg7 Ra7 Bg6 Re8 h8Q Re6 h7 Ba6 Qg8 Bc4 h8Q Bd5 Qh5 Qc8 Bh7 Qb7 Qc8 Qa8 Qb7 Rc4 d8Q Nd7 Qb4 Rc7 Ng6 Ne5+ Kg8 Rd4 Nf8 Nf7 Nd7 Ra7 Nb8 Rc4 Qd3 f1R Qf6 Rd7 Qd1 Bf4 Qfd4 Ne5 Qc1 Rh6+ Kf8 Nd6 Rh1 Nb7 Be4 Rdh7 Bc2 Nf7 Re8 Re6 Qd3 Rce4 Qcd1 Rf2 Re1 Rf1 Q3e2 Rh1 Rg1 Bc7 Qef1 Bd6+
b1qrQ3/Q2Q1Nkp/2rrB1N1/1B2pp2/2p1Bb2/5bP1/2K1nb2/2Qn2R1 w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 e4 a5 h4 axb4 hxg5 f6 e5 Bh3 Ra2 Bd7 e6 Bc8 f4 Nh6 f5 Ng8 g6 Bg7 Bb2 Bf8 Be5 Qd6 Ra3 Qd8 Rf3 fxe5 f6 Bg7 f7+ Kf8 Rf6 exf6 Qh5 Ke7 Qd1 Bf8 d4 b5 Kd2 c5 d5 f5 g7 Kf6 g3 c3+ Kc1 c2 e7 c4 e8B b3 d6 b2+ Kd2 c1B+ Kc3 b4+ Kc2 Bf4 a5 Nh6 g8B Kg7 a6 Bb7 a7 Ng4 d7 Nc6 Bg2 Rc8 a8Q Bc5 Qa7 Nf2 Be4 Ba8 Na3 b1R Qc1 Nd1 Ne2 Bf2 Nb5 Ra1 Nd6 Ra6 Rg1 b3+ Kb1 b2 Kc2 Qc7 d8Q Qd7 Qe7 Rc7 Qe6 Qc8 Qd7 Rb6 Nd4 Ra6 Nf3 Rb6 Nh4 Nd4+ Kb1 Ne2 Kc2 Rcc6 Ng6 Kh6 Nb7 Rd6 Nd8 Rbc6 f8Q+ Kg5 Bgf7 Kf6 Qfe7+ Kg7 Be6+ Kh6 Nf7+ Kg7 Qdb7 Rf8 B8d7 Rd8 Qe8 Ndc3 Qb5 b1B+ Kb2 Bc2 Qd5 Bd1 Qdd2 Rb6+ Bb5 Rbc6 Qd3 Nd4 Qdd2 Bf3 Qd3 Nde2 Kc2 Nd1 Qdd4 Bh1 Qad7 Bg2 Q4a7 Bf3
n3RN2/bp4k1/1p1QR3/PN2nrN1/3B2p1/RQ2b1pr/r1nRqn2/6K1 w - - 0 1 legal: proof: d4 f5 e4 fxe4 b4 c5 b5 cxd4 b6 axb6 g4 h5 f4 d6 f5 Ra3 f6 Be6 Be2 Bf5 gxf5 Ra8 Bg4 hxg4 Kf1 Kf7 a4 g5 c4 e5 h4 e3 c5 g3 h5 e4 c6 e2+ Kg2 e1N+ Kf1 g4 c7 e3 c8Q d5 h6 d3 h7 d2 Ra3 d4 Qc3 d3 Qc8 Nd7 Qc6 Nc2 Qc5 e2+ Kg2 e1B Nc3 Qe8 Rh2 Bf2 Nb5 Ne5 Nf3 Ne7 Bb2 Nd5 Qd6 Be3 Bd4 Nc7 Qb1 d1R a5 d2 Qb3+ Qe6 Rh6 Ra1 Rh2 Be7 Ng5+ Kf8 f7 d1N Kf1 Ra2 Rd2 Kg7 f8R Nf2 Rf6 Raf8 Kg1 Na8 Rh6 Qc4 Re6 Qe2 f6+ Kh6 f7+ Kg7 Qc5 Bd6 Qcd5 Bb8 Qd6 Rc8 f8N Rc5 Qc3 Ba7 Qb3 Rg8 h8R Rd5 Rhh6 Rh8 Re8 Rc5 Rhe6 Rh3 Ba1 Rc7 Bb2 Rf7 Bd4 Rf5
2Rn2r1/3bB1N1/1Np1b1p1/Q3Pn2/q2N1QnN/3kp1QB/K4nqp/6r1 w - - 0 1 illegal: No possible last move
Q1N2b2/1n4p1/1Bb3Pr/b1R1r1RB/4Kp1k/1p3n2/BR5p/b2Q1qqB w - - 0 1 legal: proof: b4 e5 f4 exf4 h4 d5 c4 a5 cxd5 axb4 a4 Qe7 Na3 bxa3 h5 Qf6 h6 Qxh6 Nf3 Qh5 Ng1 Qh2 Kf2 Ke7 Kf3 Kf6 d4 Kg5 g4 c5 e4 b5 d6 f5 a5 h5 d5 b4 e5 a2 e6 h4 e7 c4 e8B c3 a6 c2 a7 h3 d7 Nc6 d8Q+ Be7 d6 Bb7 d7 Rh6 Rb1 a1B Bh5 Nf6 Bc4 Nh7 Ba2 b3 Be3 c1B Ne2 Bd2 Nd4 Qg1 Rb2 h2 Nb5 Kh4 g5 Ba5 Bb6 Bf8 Nd6 Rb8 Qe8 Rd8 g6 Ba8 Nc8 Ng5+ Ke2 f3+ Kd3 Bb7 a8B f2 Qe4+ f4 Qef3 Ne6 Ke4 f1Q Qg2 Ned4 Qgf3 Qg5 Rg1 Qc5 Qh1 Nf3 Rgg2 Qcg1 Rg5 Ba6 Rc5 Bb5 Bb7 Ncd4 Rg5 Ne6 Bd5 Bc6 Qg2 Re8 d8R Re7 Re8 Rd7 Re7 Nd8 Ree5 Ba4 Bc6 Nb7 Rc5 Rd3 Qge2 Rd8 Qa6 Rd5 Qa8 Bb5 Bd7 Bc6 Bh3 Qb5 Bg2 Qbf1 Bh1 Re5+
1N2Bq1Q/4p3/Qr6/n1Kn1kP1/p2R1p1r/QQb1p2N/B2Nr3/1q3br1 w - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 e4 fxe4 f5 h4 Bf4 b6 a4 gxf4 g4 c5 Ra3 cxd4 Rg3 b5 axb5 hxg3 Ke2 Kf7 h4 Kf6 c4 d5 h5 a5 c5 g2 h6 a4 g5+ Ke5 h7 e3 Kd3 Nc6 f6 Qb6 f7 Kf5 Nh3 g1R Qb3 Qa7 b6 Qa6+ b5 Kg4 b7 Bg7 b8Q Nf6 f8Q Kf5 Nd2 Na5 Qd6 Rb8 c6 Qa8 c7 Rb6 Qda3 Ba6 Qf7 Qf8 c8B+ Re6 Bb7 Rb6 Bc6 Rg2 Be8 Re2 Kc2 d3+ Kc3 d4+ Kb4 Re6 Bg2 Rb6 Qfc4 Nd5+ Kc5 Bf6 Rd1 Bg7 Nb1 d2 Bf3 d3 Bfh5 Bc3 Bhf7 Rg8 h8Q Rg7 Bg8 Rh7 Bgf7 Rh4 Bg8 Re6 b6 Reh6 b7 Rb6 b8N Bb5 Rc1 d1R Nd2 Rg1 Ra1 Bc6 Qa6 Bb5 Nf1 d2 Rb1 d1Q Nd2 Qf1 Rc1 Bg7 Rc4 Bc3 Rd4 Qb1 Qbb4 Nf6 Ba2 Nd5 Qbb3 Rf2 Qab2 Bf1 Q2a3 Re2
8/4p1K1/B4Qpq/3r1pQb/1r3P2/Q1B1k1B1/2nrqpRn/N2b1RrQ w - - 0 1 illegal: No possible last move
kq1R4/n1BRqNq1/1r6/b1NK2QN/q2P1np1/2Q5/p1pN1p2/r3nR2 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 h5 Qb3 f5 Qd1 f3 Bg2 f4 Bh3 Bf5 gxf5 Qd7 Bg4 hxg4 Nc3 Qd6 Nb1 Qd8 Kf2 Kd7 d4 Kc8 b4 Kb7 e4 a5 h4 c5 e5 g5 e6 g3+ Ke1 g2 Kf2 a3 b5 c3 h5 a2 h6 c2 f6 a4 e7 c4 e8N a3 b6 c3 h7 Ne7 f7 Nbc6 Rh5 Qb8 Ne2 Na7 Nd2 Ng6 Nc7 Bb4 f8Q Ba5 Qf5 g1N Ng3 g4 Rb1 a1Q Qg5 Rc8 Ne6 Rc6 h8N Qa2 Bb2 c1Q Qe1 c2 Nf7 Qb3 Rh2 Qa4 Bc3 Qb2 Rh8 Qbb4 Nh5 Qe7 Rd8 Rd6 Bb4 Rc6 Qe3 Rd6 Qc3 Rc6 Kf1 f2 Bd6 Nf3 Ke2 Ne1 Bc7 f3+ Ke3 f1Q Ke4 Nf4 Rd7 f2 Rc1 Qd3+ Ke5 Qh7 Ra1 Ka6 b7 Qg7+ Ke4 Rb6 Rd1 Qbd8 b8R Qde8 Rbd8 Kb7 Rd5 Qeh8 R8d7 Qb8 Rd8 Nc8 R5d7 Raa6 Rc1 Na7 Rd1 Ka8 Ra1 a2 Rd1 Rb1 Rc1 Nh3 Kd5 Ra1 Nc5 Rb6 Rb1 Nf3 Rh1 Ne1 Rf1 Nf4+
3Rb2b/1B5k/QNBbqp2/b5qB/1r2n3/qRr1BQ2/pP1p1pKQ/8 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 Qd3 bxa4 Qd2 Ne7 Qd1 Ng8 g6 h5 Nd2 f6 Nc4 Ke7 Ne5 Nc6 Ng4 hxg4 Kf2 Ne5 Ke1 Nf7 gxf7 Ba6 Be3 Bb7 Bc1 Bc8 Kf2 g5 c4 a5 e4 d5 h4 f3 e5 a3 e6 a4 h5 a2 h6 g3+ Ke1 a3 c5 g4 c6 g2 Kf2 d3 c7 d2 h7 d4 Qa4 d1Q Rh6 d3 Rh4 g3+ Ke3 Qd2+ Ke4 Rb8 Qb5 Qd7 Qd5 Bg7 Nh3 Kf8 Qd4 g1B Rb1 a1Q Qf2 g2 Nf4 Nh6 Rh3 Bh2 Nd5 g1B Bg2 Qg5 Be3 Ng4 Nb6 Bd6 Rd1 Ba6 c8B Bb5 Bb7 d2 Re1 Rg8 h8Q Qe8 Qhh4 Bh8 e7+ Kg7 f8Q+ Kg6 Rc1 Qd7 Qhg3 Qe6+ Qe5 Rg7 Rc8 Be8 Rd8 Rf7 Rg3 Kh7 Qf1 Qaa2 Qa6 Qab3 Bc6 a2 Bh1 Rg7 Qf7 Qa3 Qh5+ Nh6 Qg4 Nf5 Bg2 f2 Kf3 Bh2 Bh1 Bb4 Kg2 Nd6 Qf3 Ba5 Bb7 Ne4 Qd6 Bc6 e8B Rc7 Bh5 Be8 Qdf4 Rc3 Qh4 Qgc5 Rh3 Be5 Rg3 Bc7 Qh2 Bd6 Qf4 Rc8 Bd4 Rc1 Rb3 Qg5+ Kf3 R8c4 Be3 Nc5 Qg4 Rf4+ Kg3 Rcc4 Bhc6 Rc3 Kg2 Rb4 Qgg3 Ne4 Qg4 Qc5 Qf3 Qg5+
b7/n1bq3N/2p1r1kN/4QRr1/RPp5/2pQ1N2/Npqb3K/2R1qb1B w - - 0 1 illegal: No proof kernel
2B1q3/1prRQ2p/b3n3/2QR1R1p/q4nBQ/b7/1Pn2p1b/KQN2kn1 w - - 0 1 illegal: No proof kernel
1b1Q1B1K/2Nr2N1/p1p4p/3n1nbr/b1Q1nr1p/3P3R/1k4NR/2Rb1R2 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 g4 exf4 h4 b5 h5 bxa4 g5 g6 h6 Bg4 Bh3 Bf5 Bg4 Qd3 Bh5 gxh5 g6 Qf3 g7 Nf6 g8N Bc8 Rh2 Qg4 Rh1 Qg7 hxg7 Bd6 Na3 Bb4 Nb1 Bf8 Kf2 Kd7 Kf3 Kc6 e4 Kc5 b4+ Kd4 d3 c3 b5 h4 e5 a6 e6 a3 b6 a2 b7 c2 e7 Nbd7 e8R Nd5 Kg4 f5+ Kh5 f3 Kh6 f2 b8R f1R Ba3 c1B+ Qd2 f4 Rb5 f3 Nc3 f2 Rab1 a1N R5b2 Bd6 Rh3 Ra7 Qg5 Nc2 Rf8 Nc5 Ne7 Nce3 g8Q Ne4 Kg7 Bd7 Ra2 Bd2 Rc1 Ba4 Rf7 c6 Nf5+ Ke5 Bc5 Rd7 Nb5 Bc7 Bf8 Bb8 Rc3 Bc1 Nc7 Bd2 Qd8 Bc1 Ng3 Kd4 Nh5 Bd2 Rcc2 Bc1 Ra1 Bd2 Rca2 Kc3 Nf3 Bc1 Ne1 Kb3 Ra3+ Kb2 Ng2 Bd2 Rc3 Bc1 Re7 Bd2 Rcc1 Nf5+ Kf7 Bg5 Ng7 Rg1 Rh2 f1B Rh3 Be2 Rf1 h6 Rac1 Bed1 Kg6 Nde3 Qc4 Nd5 Rf7 Rg8 Kh7 Rh1 Rh2 Rg1 Rf3 Rf1 Rfh3 Rf3 Nh5 Rg6 Ng7 Rf4 Kg8 Bf6 Kh8 Rg5 Rc3 Rh5 Rc1 Bg5 Rf6 Nfg3 Rf5 Rg4 Rf4 Nf5 Rf1 Rf4
1QB2B2/K2R3r/1p4Q1/qb1pQ2r/2pr1n2/2kN1n2/n2prN1P/4n1QB w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 c4 d5 a4 e5 c5 Bd6 cxd6 exd4 e5 f5 Ra2 Qf6 Re2 Qd8 Re4 fxe4 Kd2 Kf7 f4 Ke6 a5 g5 a6 c5 d7 b3 a7 b2 Kc2 e3 Kb3 e2 Ka4 e1N Kb5 c4 Ne2 d3 Nd2 g3 Ne4 g2 Rg1 g4 Nf2 b1R+ Bb2 d2 Nc1 g3 Ncd3 Kf5 e6 Rh5 e7 Nc6 e8Q Nb4 Bg7 Nf6 Bf8 Na2+ Kc5 Rb8 a8B b6+ Kc6 Ba6 Qg6+ Ke6 Be2 Rb7 Bf3 Ra1 Rf1 g1R Bh1 g2 Qc1 Ra7 Bb7 Qa8 d8Q Bb5+ Kc7 Rb1 Qb8 Rb3 Kc8 Rc3 Ba6 Rah7 Bb7 Qa6 Qc7 Qa4 Kb8 Qa5 Ba6 Ra3 Ka7 Rc3 Nb2 Re3 Nbd3 Re2 Qa1 Rhe5 Qd4 R5e4 Qa1 Rh5 Qb8 Rd4 f5+ Kd7 Qc1 Kc6 Qe5 Rh7+ Qf7 Nh5 f6 Nf4 Qa1 Rh5 Qg6 Nc2 Re1 Rf1 Qd1 g1N Qb1 Nf3 f7+ Ne6 Qa1 Rg1 Rf1 Nce1 Qc1 Rgg5 Qd1 Rh7 Qb1 Qc3 Bc8 Rgh5 Qc1 Ba4 Rg1 Kb5 Rg5 Nf4 Qa1 Neg2 Qg1 Nge1 Rf5 Qa3 Rf6 Ka5 Rd6 Bb5 Rd7 Qc3 Bd6 Ka4 f8Q Kb3 Qfh8 Qb4 Bf8 Kc3 Qb8 Qc5 Qhf6 Qb4 Qfe5 Qa5+
k4rrN/3qBR2/nQ3Q2/pQbb1p2/2P3np/N4np1/QB1p2K1/r4N2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 Ne7 b4 Bh6 Bg2 Nd5 Rh4 gxh4 g5 Bg7 g6 Bf8 g7 Ne7 Be4 Ng8 Bg6 hxg6 Ra3 Nh6 Rh3 Ng8 Rh2 Ne7 Rh1 Ng8 Kf1 d5 e4 Kd7 e5 Kc7 h6 Kb7 h7 a5 b6 f3 e6 d3 b5 f6 e7 g5 e8Q f2 Bb2 d4 Qf3+ Qd5 Kg2 f1N Na3 g4 Ne2 d2 Ng3 Nh2 Rf1 Nh6 g8Q d1R c3 Qc6 Qa2 d3 c4 Rg8 h8N d2 Rf2 Rh1 Nf1 Na6 Qd8 Kb8 b7 g3 Qb6 N6g4 Qa7+ Kc7 b8Q+ Kd8 b6 Bc5 Ne3 Ra1 Nf1 Qd6 Qbb7 Be6 Qbc6 Qd3 b7 Qd7 b8B Bd5 Qb5 Kc8 Bd6 Rb8 Qab6 Ra8 Re2 f5 Re7 Rb8 Rf7 Ra8 Qe4 Nf3 Be7 Rb8 Qd4 Ra8 Qe6 Kc7 Qdf6 Raf8 Qa4 Kb7 Qb5+ Ka7 Qeb6+ Ka8
n2QR2q/bkNr1n2/pb1RrN1Q/1p2QR2/P2ppp1q/b6K/8/B5R1 w - - 0 1 legal: proof: e4 h5 d4 c5 g4 hxg4 b4 cxb4 e5 e6 d5 exd5 f4 b6 e6 Qe7 f5 Kd8 Bg2 Kc7 Be4 dxe4 Kf1 Ba6+ Ke1 Qd8 e7 Bc4 Qd4 Kc6 Qd1 Be6 fxe6 Rh7 Bf4 Rh4 Bc1 Rh8 Kf2 d5 Kg3 f5 e8R g5 a4 b5 c4 b3 h4 b2 h5 a6 c5 Kb7 e7 Nh6 Nf3 Qc8 Nc3 b1Q Bb2 Nf7 h6 Rh7 Nd4 Nd7 Rh5 Nb6 Ne6 f4+ Kg2 g3 Nc7 g4 Rf5 Rg7 h7 Qd8 Qd4 Qe1 h8Q Ra7 Rb1 Rg6 Ba1 Na8 Qde5 Re6 Qh6 Qc8 Rd8 Qf2+ Kh1 g2+ Kh2 g3+ Kh3 g1B e8R g2 Rd6 Qe1 Rc1 Bd4 Rd1 g1B Rc1 Qd8 Rd1 Qf6 Rc1 Qh8 c6+ Kb6 Rb1 Rb7 Rd1 Ka7 Rc1 Bb6 Rb1 Bgc5 Rd1 d4 N3d5 Qf2 Rg1 Qe1 Nf6 Qf2 Ncd5 Rd7 c7 Qe1 c8Q Qh4+ Kg2 Be7 Qd8 Kb7 Nc7 Ba7 Rd1 Bcb6 Rg1 Qe1 Kh3 Qf2 Rd5 Ba3 Rd6 Qh4+
q4B2/1r2Q3/prpr1n2/Kb1Bp1k1/b3QN2/1PpRNq2/B1pN4/n3N3 w - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 g5 c5 gxh4 c6 bxc6 Na3 c5 Nb1 c4 a3 d5 Ke2 Bg7 Nh3 Bc3 Ng1 Ba5 Ke1 Bb4 axb4 d4 Ra3 Nd7 Rf3 Nb8 Rc3 dxc3 g4 Kf7 d4 Kf6 f4 h5 g5+ Kf5 g6 e5 g7 h3 d5 h4 b5 c2 Kd2 c6 Kc3 e3 Kb4 e2 d6 e1R d7 h2 b6 a6 b7 h3 Nf3 c3 Bc4 Re4 Qd4 Ne7 g8B Rh5 Ne1 Ra7 Bgd5 Rh6 Nd2 Rd6 Ba2 Ng8 Rf1 h1B Rf3 h2 Rd3 Qe8 d8N Nd7 b8N Nc5 Ne6 Rb7+ Ka5 Nf6 Nd7 Bf3 Nb6 h1Q Nbc4 Be2 Ne3+ Kg6 Qa4 Reb4 f5+ Kh5 Nf4+ Kg5 Bac4 Be6 Ba2 R4b6 Qe4 Ng4 f6 Qf3 f7 Qa8 f8Q Nf6 Qe7 Nb3+ Ka4 Na1 b3 Bh3 Ka5 Bhf1 Rd4 Bc4 Ba3 Bb5 Rd3 Ba4 Qc7 Re6 Bf8 Rd6 Qe7 Be2 Rd4 Bc4 Rd3 Bcb5
RB1R1n2/3P2Q1/rQ6/pQ1p1p1n/1pKbp2N/q2Bk3/5r1Q/Bqb3n1 w - - 0 1 illegal: No possible last move, all moves rejected
7N/1p4Q1/NnQKnN2/3r3N/3pq1pp/3kr1Q1/P1R1bRp1/1q1qr1B1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Bh3 e4 Bg2 fxg6 Bh3 g5 Bf1 g4 h4 g5 Bg2 g3 Bh3 Bh6 Bf5 g4 Bg6+ Ke7 Bf5 Bg5 hxg5 Kf8 Be6 Ke7 Bc4 Ke8 Bd3 exd3 Kd2 Kf7 e4 Ke6 f4 h5 c4 d5 c5 g2 c6 h4 g6 b3 g7 b2 c7 Kf6 e5+ Kf5 e6 Ke4 e7 Nf6 e8N Nh5 g8Q Qd7 f5 Qe6 f6 Na6 f7 Nf4 f8N Qf5 Qb3 Qe5 Nc3+ Kf5 Nh3 b1Q Nf6 Nb8 Qg7 Rg8 Nb5 Ra5 Ng6 Re8 Rf1 Qe4 Rf2 Nd7 Nh8 Nb6 Bb2 Be6 c8Q Ke5 Nc7 Bg8 Ba3 Ne6 Na6 Rc5 Bb2 Rc1 Nf4 Re1 N4h5 Re3 Qc1 Re7 Kd1 d2 Ba3 Bf7 Bc5 Be8 Qc3 Bb5 Qd3 Qb4 Kc2 d1R Rb1 Rd7 Rb3 Rde1 Rc3 Qb1+ Kd2 Rd8 Rc2 Rd6 Qda3 d3 Kc3 Bc4 Qb3 d2+ Kb4 d1Q Qd7 Nf4 Qg7 Be2+ Bd4+ Kf5 Kc5 Rd8 Be5 d4 Qba3 Rc8+ Kd6 Rc5 Qb3 Qf3 Qc3 Ne6 Bh2 Ra5 Bg1 Rd5+ Ke7 Ke5 Qc6 Kf5 Qa3 Ke5 Qad6+ Kf5 Qg3 Qf4 Nd7 Ke4 Ndf6+ Kd3 Qf3 Rf5 Qg3 Qe4 Kd6 Rd5+
N3b3/1r6/p1pnn1qr/6BB/n1pQK1R1/r3PQB1/1N2pQp1/rk1B4 w - - 0 1 illegal: No proof kernel
QN1bq1n1/N1p1P2p/pq2bK2/pqR2QQ1/k1p3p1/r2Rr3/Q7/1B5R w - - 0 1 legal: proof: d4 d5 c4 dxc4 g4 e5 a4 f5 a5 fxg4 Bh6 b6 Bc1 bxa5 d5 g5 h3 g3 Bf4 Nd7 Be3 Ndf6 Bd4 exd4 h4 g4 Na3 Ne4 Nb1 Ng5 hxg5 Qd7 Nh3 Qd6 Ng1 Qd8 Kd2 Kd7 e4 g2 f4 d3 Kc3 a6 Kd4 d2 Ke5 Ne7 b4 Rb8 g6 Bb7 d6 Kc6 d7 Kb5 f5 Bg7+ f6 Rc8 Ne2 g1Q Rh5 Re8 Qb3 d1Q Na3+ Kb6 b5 Bh8 g7 Rf8 g8Q Qe8 d8R Qh1 Qg5 Bg7 Rd3 Ra8 Nd4 Rd8 Qa2 Rf7 Nc6 Qb1 Nb8 Kc5 b6 Kb4 Nb5 Qh3 Na7 Bd5 b7 Be6 Bg2 Qb3 Rh1 Nf5 Bf1 Bh8 Be2 Rg7 f7 Nh6 Kf6 Qe3 e5 Qb6 f8Q+ Rd6 Bd1 Qb2 Bc2 Re7+ Qfg7 Qb3 Bb1 Qba4 Qf5 Qab5 Nd7 Rd4 b8Q Rf4 Qa8 Rf3 Nb8 Rg3 Rd5 Ra3 R5h3 Ka4 Rc5 Rd7 Rf3 Rd1 Rd3 Re1 Kg5 Re3 Qgg6 Bd7 e6 Be5 Qg8 Bd6 Kf6 Be7+ Kg7 Bd8 e7 Be6 Kf6 Qec6 Qgg6 Qe8 Qgg5 Ng8+
bQ2KN2/6Q1/2p4p/1b3qp1/1BB1pB2/QpR1Prb1/RB1kn1p1/1b4n1 w - - 0 1 legal: proof: g4 d5 c4 dxc4 h4 b5 b4 cxb3 h5 a5 Na3 g5 Nc2 f6 Nb4 axb4 Rh2 Ra6 Rh3 f5 Rh1 Rg6 hxg6 fxg4 f4 Kd7 Kf2 Kd6 Ke3 Kd5 d4 Kc4 Ke4 Kc3 Ke5 c6 a4 e6 a5 h6 f5 b2 g7 b1B d5 g3 e3 b3 f6 b4 f7 b2 a6 b3 d6 g2 a7 Bb7 a8Q Ne7 Kf6 e5 g8Q e4 d7 Na6 Qg7 Qa5 d8B Qc5 Ra2 Bd3 Nf3 b1B Nh4 Nb8 Bc7 Ng6 Bf4 Bb5 Qa3 Bd6 f8B Ba8 Bc4 Nd7+ Kf7+ Nde5+ Ke8 Bb8 Qd8 Bc7 Qh7 Nf3 Qb8 Ng1 Bb2+ Kd2 Qg7 Rh7 Be7 Qf5 Bf8 Nf3 Rf1 Ng1 Rc1 Bd6 Rc3 Be5 Qgb7 Rf7 Bb4 Rf6 Qg7 Bc7 Bfd6 Nf4 Ng6 Nfe2 Bh2 Bg3 Nf8 Be1 Be5 Bg3 Bed6 Qd5 Be5 Rf3 Bf4 Qf5
1Q2N3/Nn1b1r1n/rn1n1R2/2B2N1p/1Rq1R1RP/2q5/1K1b2Qq/1b1kn1r1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 g5 f5 a5 e3 axb4 f6 g4 Bb5 exf6 Bc4 f5 Be2 f4 Bf3 gxf3 Kd2 Ke7 h4 Kd6 a4 Ke5 c4 Ke4 Kc2 f5 g4 h5 c5 d5 c6 b5 c7 b3+ Kb2 d3 a5 d2 a6 Kd3 a7 f2 g5 f1R e4 b4 e5 f3 e6 f4 g6 f2 g7 f3 e7 d4 e8N Nd7 Nc3 Ngf6 g8Q Nh7 Qe6 Rg8 Qd5 Nc5 Nce2 Bh6 Qb7 Qf6 Rh3 Bd7 Qb8 Nb7 Kb1 b2 Qe1 d1Q c8R Qd2 Ka2 b1N+ Bb2 Nc3+ Kb3 Ne4 Rd8 Ned6 Ka2 Kc2 Rd1 d3 Ng3 b3+ Ka1 Qfc3 Rb1 Rf8 Rh1 Rf7 N1e2 Rg1 Rh2 f1N Rf2 Ne3 Qf1 Nec4 Nf5 Nb6 Qg2 Bf4 Rff1 f2 Rc8 Bh6 Rc4 Bf4 Rfe1 f1Q Rd4 Bh6 Rg4 Qff4 Rf1 Qfc4 Rff4 Bg5 Re4 Qf4 Rf1 d2 Rb1 d1N Ned4+ Kd3 Nb5 Nf2 Rf1 Kd2 Kb1 Bh6 Ba3 b2 Bb4 Qh2 Bc5 Qe2 Rb4 Nd3 Rge4 Ne1 Rff4 Qf3 Rg4 Kd1 Ka2 b1B+ Ka1 Qc4 Kb2 Ba2 Qd8 Rb8 a8R Bb1 Ra6 Ra8 Na7 Bd2 Qb8 Na4+ Ka1 Nb5 Rf6 N5d6 Nc8 Ra6 Na7 Nb6+ Kb2 Qfc3+
1r1RQ3/Q1n3K1/1pRQ4/R1q5/1N2rq1Q/1rb1kb2/1Pr1q1nB/b1n1r2N w - - 0 1 illegal: No proof kernel
K2Q1b2/1Np2Rb1/NrNbRn1r/b4n1B/k1q5/3b4/2PnRr1q/5qQR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 Ke2 Kd7 Ke3 Kc6 h4 g5 d4 e5 a4 b5 f4 b3 a5 b2 a6 b4 a7 g2 f5 b3 h5 g3 f6 g4 f7 Bf5 h6 Ne7 h7 Nd7 Bc4 Nf6 Bd5+ Kb5 Ne2 g1B+ Kd2 g2 Kc3 e3 Qd2 e4 Ra6 g3 Qe1 Bh2 Re6 g1Q Nd2 Ka4 Kc4 b1R Kc5 b2 Nb3 g2 Qg3 Bg7 f8R Qf1 Rf7 g1Q Qg5 Qgf2 Qg1 Qg8 Bc4 Q2g2 d5 Rf8 Ned4 e2 d6 e1B a8Q+ Ba5 d7 e3 d8N e2 Nb7 e1B Qd8 Bd3 Nc6 Nf5 Bd5 Bf4 Bf3 Qh2 Be2 Beg3 Bh5 Bfh6 Re2 Rd1 Re6 b1N Re2 Nd2 Re6 Qh4 Rh2 Rb1 Rhe2 Ne8 Kd5 Qh2 Kc5 Bd6+ Kd5 Ka3 N3c5 Rb3 Na6 Ka4 Nd4 Nf6+ Kc6 Bb6 Na5 Rb4 Kb7 Rb5 Kb8 Rb2 Nb7 Ba5 Ka8 Rb6 Rd7 Rf7 Nc6 Bgf8 Rde7 Qg4 Rd7 Bhg7 Rde7 Rg8 h8R Qc4 Rh7 Rh8 Bg6 Qhg2 Rh1 Rh6 Bh5 Qh2 Rd7 Re7 R6e4 Re5 Rf7 Rd5 Re5 Rd4 R5e3 Rf4 Re6 Rf2
k7/2q2nBR/1pRq1n2/2Q1rQNR/b1B2r2/1K1n1Rr1/QP1rr3/r2rb3 w - - 0 1 illegal: No possible last move, all moves rejected
N2b3n/1b1BN2Q/k1N5/n7/qn1K3p/1nrRr2P/qrrnR2q/2NQ2R1 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Na3 g4 Be3 g3 Bf2 gxf2+ Kd2 exf6 Nb1 f5 Qe1 f4 Qc1 Bh6 Qd1 Bf8 Kd3 b5 c4 h5 e4 f5 g4 d5 a4 Kd7 a5 Kc7 c5 Kb7 e5 h4 e6 f3 g5 b3 e7 b4 e8R f4 h3 b2 g6 b3 c6+ Ka6 g7 Ne7 g8Q Qd6 c7 Ng6 Qc1 Nc6 Re4 Bb7 c8N Be7 Na7 Rc8 Re6 Nb4+ Kd2+ d3 Re5 d4 Nb5 Rc3 Bg2 f1R N5a3 f2 Bc6 f3 Qd1 Bd8 Rh5 Re1 Rc5 Re3 Rf5 Qh2 Ne2 f1N+ Ke1 Nd2 Rh5 Rh6 Ra2 Nh8 Be8 Rhc6 Bd7 Nc4 Nc2 f2+ Kf1 d2 Rd5 d3 Ncd4 Rc2 Nbc3 b1Q Rd6 b2 Rg1 Qa1 Qh7 b1N Rb2 Qa2 Nd5 Rc3 Nc1 Rc2 Qe1 d1Q Ne7 d2 Rd5 Rb6 Ndc6 Qg4 Rd6 d1R Rd3 Rdd2 Qd1 Rc3 Rd4 Rdc2 Rd3 Kb5 a6 Na5 a7 Ka6 a8N Qgc4 Qdh5 Qcb3 Qd1 Qba4 Nc8 Qf4 N8e7 Nd2+ Kg2 Ndb3 Kf1 Re6 Kg2 Qh2+ Kf3 f1N Qd2 Rf6+ Ke4 Rf3 Qd1 Re3+ Kf5 Rg2 Re2 Nfd2 Kf6 Rg4 Kf5 Rgc4 Kf6 Rc2 Kf5 R4c3 Kf6 Rg3 Ke5 Re3+ Kf5 Nd5 Qh6 Nc5 Qg6 Rbb3 Qh7 Nb4 Kf6 Rbb2 Kf5 Rg3 Ke5 Re3+ Kd4 Ncb3+
K1k3b1/7n/1q5r/nbpb2r1/q1P1R1NQ/BnQ1B2b/Q3r3/N2BQnb1 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 dxe4 g4 axb4 f4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 Ke2 Kd7 d4 f5 h4 e5 h5 b5 d5 f3+ Ke3 f4+ Kd2 b3 Kc3 g3 d6 b4+ Kc4 e3 Kb5 g2 g6 b2 c3 f2 h6 b3 h7 e2 g7 e1N a5 f3 a6 e4 a7 e3 Qc2 e2 Bf4 Nd3 Be5 e1R Ne2 g1Q Na3 b1B Bf4 b2 Nc1 Nf6 g8Q Qg4 Rh4 Nc6 Nc4 Ba2 Nb3 b1B Na1 Nc1 Be2 f1B Bd1 f2 Qd2 Re8 Qe1 Be4 Qg5 Ba6+ Kc5 Bh3 Ne3 f1N Qh5 Rg8 h8Q Kc8 Qe5 Rb8 a8Q Bb5 Qh6 Bac4 Qa2 Na5 Qh8 c6 Qe7 Rb6 d7+ Kb7 Bd6 Nh7 Qd4 Qb8 d8B+ Kc8 Qee5 Ra6 Bb6 Rg5 Ba7 Bg8 Be7 Qg3 c4 Bed5 Qee4 Qg2 Qdc3 Qc2 Rf4 Rb6 Qh4 Qb3 Ng4 Qa4 Qee1 Qb7 Bd6 Re2 Re4 Bg7 Be7 Bd4+ Kd6 Ra6 Bb6 Bg1 Be3 Ncb3 Bf8 Qa7 Be7 Kb7 Kd7 Rb6 Ba3 c5+ Kd8 Rc6 Kd7 Rh6+ Kd8 Kc6 Kc8 Qa6+ Kb8 Kd7 Nc2 Qg6 Ka7 Kc8 Na1 Bdf7 Ka8 Qb6 Qcd2 Be6 Qc3 Bd5+
4Qq2/K2rbN2/2k5/B2q1pnq/1Qn5/b1NNqP1R/2B1b2Q/Nn2qn1r w - - 0 1 illegal: No possible last move
Q3bkn1/6Rr/4K2Q/b1bBp1BR/r2rR1nq/2R5/q3Pbr1/bQq2N2 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Nd2 h4 Ne4 fxg6 Ba3 g5 Ng3 hxg3 Bc1 g4 Kd2 d5 Kd3 e5 f4 g5 h4 b5 a4 g2 c4 b3 a5 g3 c5 g4 h5 b2 h6 b1R f5 b4 h7 b3 a6 b2 a7 Bd7 c6 Bb4 c7 Kf8 c8Q Ba5 f6 Be8 f7 Qh4 Qb7 Nd7 Ra4 Ndf6 Nf3 g1B Nh2 g2 Ra3 g3 Be3 Ng4 Qc1 Bf2 Qd1 g1B Qc8 g2 Qa6 Rc1 Rc3 b1Q+ Qc2 Qa2 Bg5 Rb1 Qd1 Rb4 Qb1 Ra4 Qc6 Rd8 a8R Rd6 Ra6 Rg6 Qa8 Rg7 Rf6 Rg6 Rf4 Rg7 Qb2 Rg6 Re4 Rg7 Kd2 d3 Qc2 Bc5 Qb2 Bgf2 Rg1 d4 Qc2 Ne7 Qb2 Rhg8 h8R Rh7 Qc2 Qd5 Qb1 Qa2+ Kc1 d2+ Kd1 Qd5 Kc2 Qa2+ Kd3 d1Q+ Bd2 Rg7 Rh5 Qc1 Bg5 Rh7 Rh1 g1B Bg2 Be3 Nf1 Bgf2 Rg1 Bd2 Rf4 Rg6 Ke4 Ng8 Kf5 d3 Bd5 Bde1 Rg2 d2 Re4 d1R Rg1 Rgg7 Ke6 Bfd4 Rcg3 Ba1 Rc3 Rdd4 Rg2 N8h6 Rgg3 Bf2 Rg2 Rg8 Rgg3 Kg7 f8Q+ Kg6 Rc2 Ne3 Bd8+ Qg5 Rf3 Qh4 Rc3 Rgg7 Rh3 Rg8 Qf4 Kg7 Qg5+ Kf8 Rg3 Rgg7 Bf6 Ng8 Qf4 Rg5 Rg2 Rf5 Rg7 Rg5 Bd8+ Rf5 Qh6 Rg5 Bf6 Rg2 Bg5 Ng4
NkrR2rB/N1R2nq1/1np3bb/1R1n1K2/q1N2R2/Q1P5/q3Q2q/1r2q2r w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 axb6 Ng1 b5 Qf3 b4 Qe2 Nc6 Qd1 Nb8 Ke2 Kd7 Ke3 b5 Kf4 g5+ Ke5 b3 d4 b4 h4 g3 a4 b2 f4 g4 f5 b3 f6 c6 h5 Kc7 h6 e3 a5 e2 a6 e1N a7 Nd3+ Ke4 e5 f7 Nf4 h7 Nh6 c3 Nd5 Bf4 Rg8 h8N Qh4 Qe2 Nd7 Nd2 b1R Ngf3 g1Q Nc4 g2 Ng5 g3 Ra5 b2 Rb5 Qgh2 Ng6 g1Q Ne7 N7b6 Ne6+ Kb7 Nc7 Bg4 Be3 g2 Nc8 Bh5+ Bf4 Bg7 f8R Nf7 Kf5 e4 Be5 Bh6 Bh8 Qge1 Rf1 g1Q Rf4 e3 Re8 Rb8 Na8 Qg7 Ree4 Qef2 Re6 Rh1 Re7+ Nc7 d5 b1R d6 Qfg2 d7 Nd5 Qb2 e2 Qa2 e1Q Qe2 Qgf2 d8R+ Ka6 Qe3 Qa2 Rc7 Qhg4+ Ke4 Qgd1 Kf5 Qda4 Qe2 Qb4 Re7 Nd7 Nab6 Kb7 a8Q+ Kc7 Qa3 Qa4 Na7 Rc8 Qd2 Kb8 Na8+ N7b6 Qe2 Ra1 Red7 Rb1 Rc7 Bg6+
2b1R2r/n1n1p3/2kq1r2/nN3N2/1Q1rq1Qr/4PB1b/1R4n1/1Nb1RNKn w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 h4 g5 a4 d5 c4 Kd7 f4 b5 f5 g2 Kf2 d3 a5 g3+ Ke3 d2 c5 b3 f6 d4+ Kf3 b2 h5 d3 a6 g4+ Ke3 b4 f7 b3 a7 Kc6 h6 Qd6 h7 Nf6 Qc2 d1N+ Kd2 Ne8 Ke1 Bh6 f8N Nc7 Nd7 Bc1 e3 d2+ Ke2 Nf2 Nf8 d1R Rh6 Rd4 Qd2 Nh1 Na3 b1Q Ne6 b2 Nf3 g1R Rh2 g2 Ng7 g3 Nf5 Qe4 Qb4 b1B Nd2 Ba2 Nab1 Bae6 Ke1 Rf8 h8R Rf6 Re8 Bed7 Ng7 Bh3 Ke2 Nba6 Ke1 Nb5 Nf5 Nac7 Ke2 Rb8 a8N Na7 Ke1 Nf2 Ke2 Rh1 Ke1 g1N Bg2 Ne2+ Nf1 Nf4 Bf3 Ng2+ Ke2 Ne6 Nc7 Ra8 Nb5 Nc7 Ra3 Nd1 Rd3 Nb2 Rd1 Nc4 Re1 Na5 Rd1 Nh4 Re1 g2 Kf2 g1N Rg2 Ne2 Rh2 Kd5 c6 Ng3 Rg2 Rh2 Kg1 Nh1 Rf2 Ng2 Rb2 Na6 c7 Kc6 Ng7 Bce6 c8Q+ Nc7 Nf5 Bd7 Rh8 Rb8 Qg8 Rd8 Qg3 Bc8 Qg4 Rg8 Qf4 Rg4 Re8 Rh4 Qg3 Bg4 Qh3 Rh8 Qh5 Rh4 Qg5 Bh3 Qf4 Na8 Qg4 Nc7
bRbr2K1/1pR4n/q2q1nB1/q1Q3Bq/4BRr1/qPQ2N2/rR1b4/1r3k2 w - - 0 1 illegal: Other
b1Bn4/1r1prR1Q/3n4/k1q2Bq1/2q1nBBR/2bPn2Q/r1Nr2b1/3Q2K1 w - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 h5 e5 h6 exf4 Nc3 c4 Nb5 gxh6 Nd4 h5 Nb3 cxb3 Rh3 h4 Rh2 Qf6 Rh1 Qd8 Kf2 f5 c4 h5 e4 b5 g4 b2 a4 b1R e5 f3 e6 h3 c5 b3 g5 h4 e7 f4 a5 h2 a6 b4 g6 h3 g7 b2 c6 b3 c7 Bb7 c8B Nf6 g8B Rh7 a7 Nc6 Ba6 Bg7 Ra3 Ne4+ Kf1 f2 Be2 Nd6 Ra6 Bc3 Ra4 Qa5 Bf3 Qg5 Ra2 Nd8 Bg4 Bg2+ Ke2 f1N Kf2 f3 Qc2 Ne3 Kg3 f2 Ra1 f1Q Ra2 Qc4 Kf2 Ra1 d3 b1R Bd2 b2 Ra5 Ra2 Nf3 Rg7 Rf1 h1Q Bh7 h2 Nd4 Rb8 a8Q Rd1 Ra7 b1N Qf3 Rb7 Bhf5 Rf7 Bc1 Nd2 Qh3 Qc5 Ra4 N2e4+ Ke2 Rd2+ Ke1 Rc7 Qd1 Rb7 Nc2 Qg1 Rc4 h1B Rb4 Qc4 Qh7 Rg7 Ra4 Kf7 e8Q+ Kf6 Rb4 Re7 Qeh5 Ke5 Qh3 Kd5 Ra4 Kc6 Rb4 Nd5 Ra4 Qgc5 Rf4 Bf3 Kf1 Ne3+ Kg1 Bfg2 Rf3 Kb6 Rb4+ Ka5 Rf2 Re2 Bd2 Nf1 Bf4 Rd2 Bg6 Nf6 B4h5 Q4d5 Be5 Rb6 Qe2 Ne3 Rh4 Qdc4 Qd1 Bd5+ Bg4 Ba8 Rf3 Nfe4 Rf7 Rb8 Bf5 Bg2 Bf4 Rb7
1k1nN3/q1Rp2NK/2n2N1Q/R1rbQq2/2R5/2N1bq1q/2BPb1nn/4r1r1 w - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 h5 e5 h6 exf4 Rh3 c4 Bb2 c3 Na3 cxb2 Rh1 gxh6 Nb1 h5 Rh2 h4 Rh3 Qa5 Rh1 Qd8 Kf2 f5 Kf3 b5 e4 h5 a4 h3 g4 h4 c4 h2 e5 b3 c5 b4 a5 h3 e6 Ba6 c6 Qf6 g5 Kd8 e7+ Kc8 e8N Nh6 c7 Be2+ Kf2 f3 Ke3 f2 Kf4 Nc6 g6 Nf7 a6 Bc5 g7 Be3+ Kg3 Rg8 a7 Nfd8 Na3 b1R Qe1 b2 Ra2 b3 Nf3 f4+ Kg4 Rd1 Kh5 b1Q Rg1 h1B Bg2 f1N Ra1 b2 Nb5 h2 Ra5 Qa2 Nc3 b1Q Qh4 Qff5+ Kh6 Qb7 Ng5 Re1 Be4 f3 Bc2 f2 Rg4 Bd5 Rc4 h1Q Qh2 Rb8 a8Q Qab3 Qa7 Qhf3 Qd4 Qa7 Qde5 Rb5 Qh1 Kb7 c8R Rc5 Rc7+ Kb8 Qh3 Nh2 Qh4 Bd4 Ne6 f1N Qh3 Ne3 Qh5 Q5h3 Kh7 Qb5 Qh4 Ng2 Qh6 Rf8 g8N Be3 Ngf6 Rg8 Rg4 Rg6 N6g7 Qd3 Rc4 Qdf5 Rd4 Nf4 Rc4 Rgg1+ Kh8 Qg5 Kh7 Ng2 Be4 Qgf4 Bc2 Qff5+
3R1BNQ/pb1Bqb2/P2rr1B1/KQ3nn1/Nbr3b1/b2B2kr/1b4N1/7n w - - 0 1 legal: proof: f4 e5 d4 exd4 b4 g5 g4 b5 c4 bxc4 a4 gxf4 g5 h5 Ra3 Bb7 Rg3 Bc8 Rg4 hxg4 Kd2 Ke7 e4 Ke6 h4 Ke5 b5 d5 a5 c5 b6 f5 h5 g3 g6 c3+ Kd3 c2 g7 g2 b7 f3 a6 c4+ Kd2 Kf4 e5 d3 Kc3+ d2 e6 f2 e7 d4+ Kb4 c3 h6 d3 h7 Nd7 b8N Bb7 Be2 f1B Ka4 Kg3 e8B f4 Rh5 f3 Rf5 f2 Na3 Nc5+ Kb4 Ne4+ Ka4 Qe7 Bf3 Nh6 g8B Ng5 Rc5 Nf5 Nh3 g1B Qe2 d1R Nb5 d2 Ba3 c1B Rd5 c2 Ka5 Bb2 Nf4 c1R Nc6 Rc4 Bg6 Re8 Bg4 Bg2 Bh3 f1N Rd8 Bd5 Ng2 Bc5 Nc3 Bf7 Na4 Nh2 Rd7 Ng4 Rd8 Nf2 Qh5 Nh1 Bb4 Ne3 Bd7 Nf5 Ba3 Qe2 Bb4 Re6 Ne7 Qe5 Nd5 Qd6 Nf6 Qe7 Qe2 Rb1 Ba3 d1B Qf1 Rbc1 Bb4 Rd4 Qb5 Rcc4 Ba3 Rdd6 Bb4 Be8 B8f7 Bg4 Ng8 Ne3 Bd3 Nf5 Bh5 Bf7 Bg6 Ba3 Rc8 Bg7 Rd8 Bgb2 Nh6 Rg8 h8Q Rg7 Ng8 Rh7 Bc3 Rh2 Bg7 Rh3 Bf8 Bcb4+
1nb1n1Qr/3Q2b1/4RrR1/Q1r3b1/N1k1qprR/2qbbB2/4bP2/2RKB3 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Na3 d3 Nb5 hxg6 Bd2 g5 Nd4 exd4 Bc1 g4 e4 Ke7 a4 Kd6 c4 Kc5 h4 d5 h5 g5 a5 f5 h6 b5 e5 d2+ Ke2 g3 h7 b3 a6 g2 a7 g4 e6 b4 e7 b2 e8Q b1Q Qf7 b3 Ra2 b2 Ra1 d3+ Ke3 d4+ Kf4 g3 Kf3 Qc7 Rh2 Bg7 Qe1 d1R Rh1 d2 Ke2 d3+ Kf3 Nf6 Qg6 Ne8 Nh3 g1B Nf4 g2 Rh6 Bh2 Ra6 g1B Ne2 Bf4 Nc3 Bgh2 Qf7 Be3 Be2 Bhf4 Rae6 Bg5 Qd7 f4 Rhg6 Rf8 h8Q Rf6 Na4+ Kb4 c5 Kc4 c6 Qe5 c7 Qc3 Qeh1 Rg1 Q1h5 d1R Qg8 Rg4 Bd2 Rc1 Be1 Qbc2 Bd1 d2 Ke2 b1B Qh1 Qe4 Qh5 B5h6 Qa5 Bg5 Nc5 Nc6 Na4 Rb8 a8R Bc2 Kf1 Bd3+ Be2 d1B Ra6 Bb7 c8R Bb3 Rc7 Bc8 Rb6 Ba2 Rb1 Rc2 Rc1 Ra8 Rb7 Nb8 Rbb6 Bb1 Rh6 Ba2 Rh4 Bb1 Bd2 Ba2 Ke1 Bb1 Bf3 Bf1 Rd1 Rc1 Rbd6 Bbd3 Ra6 Rb1 Rc1 Rb5 Kd1 Rc5 Rab6 Rh6 Be1 Rh8 Rbd6 Ra6 Rd5 Rb6 Rg6 Rf6 Rd6+ Qd5 Re6 Qc6 Qdc7 Qe4 Qd7 Bfe2+
1QN1R1rn/r2Q4/k3N2r/p1nqNb2/1bN2R2/P2BQq2/nnK5/1r2r1r1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 c4 h5 b3 hxg4 c5 f5 c6 f4 Ba3 bxc6 Bb2 c5 Bf6 c4 Bh4 Na6 Bg3 fxg3 Qf3 Nb8 Qe2 Qd3 Qd1 Qd8 h4 Kd7 d4 Kc6 Kd2 Kb6 f4 g5 f5 e5 d5 a5 a3 c5 f6 e3+ Kc1 e2 d6 e1R d7 e4 b4 g2 h5 g3 b5 c3 h6 g4 f7 c2 h7 c4 Kb2 c1Q+ Ka2 c3 Kb3 e3 Rh4 e2 Qd2 c2 Nc3 Ne7 Rh1 Qd1 Nb1 c1N+ Kc3 Na6 Qe3+ Nc5 Nd2 Ng6 Rh4 Ra7 Ngf3 g1R Ne5 g2 Ndc4+ Kb7 b6 g3 Rb1 Ka6 b7 Na2+ Kb2 Rh1 b8Q g1R Rf4 Rg8 h8N g2 Rc1 Be7 f8N Rh6 Nhf7 Nh8 Nfd6 Qd5 Ra1 Qf3 Ne6 Rgh1 Rd1 g1R Kc2 Bf8 Rdd4 Rb1 Rde4 e1N+ Kd2 Ned3 Kc2 Qg5 d8Q Nb2 Bd3 Rge1 Qd7 Rhg1 Nef7 Qd5 Nfe5 Bb7 Nc8 Bc6 Qf7 Be8 Qd7 Bg6 Rf7 Bh7 Ref4 Bf5 Re7 Ne4 Re8 Bb4 Rh4 Nc5 Re4 Rgf1 Rf4 Rfg1
2Q1KrQ1/1r1B2pN/1Bn5/3n1r2/2b1N1bb/1qR1N2n/r1Q3P1/r2nkbN1 w - - 0 1 illegal: No proof kernel
1b4BR/3n1B2/b1qqqkNK/QbB3p1/7N/2pn2Nr/nNP1rn2/2Q1n3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 a4 hxg4 e5 f5 e6 f4 Ra3 dxe6 Be2 e5 Bf1 e4 Rg3 fxg3 Ke2 Kf7 Ke3 g5 d4 b5 f4 e5 h4 c5 f5 b3 d5 g2 a5 b2 a6 c4 h5 g3 h6 b4 h7 b3 d6 Nf6 a7 Ba6 d7 Bd6 Nd2 b1N Rh6 b2 Be2 Nc3 Rh4 b1B Nb3 Na2 Rh1 c3 Nc5 Re8 Bd3 Ng4+ Ke2 e3 Kf3 e2 h8N+ Kg7 Na4 Nf2 Be3 Kf6 Bc5 e1Q Bf1 Nd3 Kg4 e4 Kh5 e3 Ng6 e2 Qc1 Qc7 Nh4 Qc6 d8Q+ Re7 Bb6 Nd7 Nb2 Bb8 Bc5 Qd2 Rh3 e1N Ne2 g1N Qa5 g2 Ng3 Re2 Kh6 Qe3 Rh2 Nh3 Rh1 g1Q Bg2 Qe8 Bd5 Qec8 Bg8 Qd4 Rh2 Qdd6 Bf7 Ke5+ f6 Nhf2 Bg8 Qe8 Rh1 Qee6 Rh2 Bc7 Bf7 Rb8 a8B Rb4 Bb7 Bb8 Bc8 Rbe4 Rh1 R4e3 Bb7 Qb5 Bd5 Qbc6 Bg8 Qh3 Bdf7 Qhe6 Bg6 Bb5 f7 Kf6 f8N Ba6 B6f7 Bb5 Nf1 Rh3 Ng6 Nab4 Rg1 Ba2 Rg4 Bac4 Ng3 Na2 Re4 Qed5 Re8 Qe4 Bh7 Qee6 Rh8 Ba6 Bhg8 Bcb5
1r2Nr1b/k2NnbBp/2q2RQ1/1n6/pn1N2R1/PQ1KR1qb/3Rn2r/3n4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxe4 h5 bxc4 h6 f5 Be2 f4 Qc2 f3 Kd1 gxh6 Qb3 fxe2+ Kc2 h5 Kc3 h4 Qd1 Bb7 Kc2 Bc8 f4 Kd7 d4 Kc6 g4 Kb6 b4 e1R d5 a5 b5 c5 g5 e5 a3 c3 g6 c4 g7 a4 f5 h3 f6 h2 d6 e3 d7 e2 f7 e4 Qd6+ Nc6 Ra2 e3 Qd3 Qh4 d8N Ka7 Qe4 Bh3 Nf3 Qg3 Ne5 Rb8 Ne6 Nge7 g8Q Bg7 Nd2 Nb4+ Kb1 c2+ Kb2 Rg1 Kc3 e1N f8R e2+ Qf3 Ned3 Rf6 e1N Nd4 Rg2 Bb2 c1N Ne4 Nec2 Nd7 Nf2 Re1 h1B Nd6 Rh2 Re3 Ne2+ Kd2 B1g2 Ne8 Nd1 Qf7 Bh1 Qg6 Rf8 Qd5 Bh8 b6+ Ka6 b7+ Ka7 Qb5 Bd5 Bc3 Bf7 Bb2 Nbd5 Qb3 c3+ Kd3 Nc7 Ba1 Nb5 Bb2 Rc8 b8R Rd8 Rbb6 Ra8 Rbc6 Rb8 Rc4 Nb4+ Ke4 Nbd5 Kd3 c2 Ba1 c1Q Rd2 Nb4+ Ke4 Rb7 Ne6 Nb2 Rf2 Nd1 Bg7 Na2 Rf6 Rb6 Kd3 Rb8 Rg4 Qc6 Nd4 Nb4+
2Kb2k1/1Q1Qpb2/nR1nn1B1/3QP3/1Bb4r/2r2b2/1pN1Nr2/3qNbQq w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 h5 d6 h4 Ra2 cxd6 Ra3 d5 Rd3 d4 Rg3 hxg3 Kd2 Kf7 Kd3 b5 Ke4 d5+ Ke5 g5 h4 d3 f4 d2 e4 g2 c4 b3 c5 d4 a5 b2 f5 g3 c6 d3 a6 b4 a7 b3 c7 g4 f6 Ba6 c8Q Nh6 h5 Nf5 h6 Kg8 Ke6 Bg7 Nf3 g1N Qd7 g2 Rh5 g3 Nc3 b1B Bb2 Bc4+ Nd5 Nh3 Ng5 g1Q Bc3 b2 Bb4 g2 Nf3 Qh1 Ne1 g1R e5 Bba2 Rg5 Na6 Rg6 Rc8 a8Q Nd6 Qab7 Rg2 Be2 Rc6 Bh5 Rf2 Qg4 d1B Qg1 d2 h7+ Kf8 f7 Bh6 Rf6 Bf3 Bg6 Kg7 f8N d1B Bf5+ Bg2 Ng6 Be3 Nf4 Bb6 Bg6 Bdf3 Ne2 Bf1 Rf8 Bd3 Rf6 Rc4 Ne3 Rc3+ Qd5 Bdc4 Qb7 Ne8 N3c2 Nf4+ Kf5 Ba5 Rb6 Qd6 Qd7 Ne6 Q5b7 Qd1 Qbd5 Rg8 h8Q+ Kf8 Qh4 Rh8 Qhe4 Rh4 Q5b7 N8c7 Qed5 Nb5 Rc6 Bd8 Rb6 Ng5 Qc5 Kg8 Qcd5+ Nf7 Ke6 Nbd6 Qa4 Ng5+ Kd7+ Ne6 Qac6 Ne8 Kc8 Bab3 Qcd6 Ba2 Qdc7 Nd6+ Kd7 Bb5+ Qdc6 Nf4 Qcc8 Bd3 Qb5 Bf7 Q5d5 Ne6 Qcc7 Ne8 Kc8 Bc4 Qcd7 Nd6+
R1q3N1/Qp2r3/pR1bkrb1/n2Rq3/r1Nn3Q/KP5b/B3q3/b3Q1Qb w - - 0 1 illegal: No proof kernel
k2B4/1pn2pn1/rq1rRQ1r/2KB2Q1/2NR1bn1/1Qr1rq1R/5PR1/6bb w - - 0 1 illegal: No possible last move, all moves rejected
Qnr3nq/n1b5/kNqR1Kp1/1N5b/n1Q1rNBp/2N3P1/RqbR3r/8 w - - 0 1 illegal: No possible last move
1Rb4q/nbQn1k2/4q1r1/2B2pKb/p1Qn1N2/N1b2BB1/4rP2/rq1BN3 w - - 0 1 legal: proof: h4 e5 b4 g5 a4 gxh4 d4 b5 d5 bxa4 d6 e4 Ra2 cxd6 Ra1 d5 Ra3 d4 Rd3 exd3 Kd2 f5 e4 h5 c4 a5 g4 d5 b5 a3 b6 h3 b7 a2 c5 a1N e5 h4 e6 a4 e7 h2 g5 h3 g6 Ra6 c6 Nb3+ Ke1 d2+ Ke2 d3+ Kf3 d4 Kf4 Qd7 g7 Kf7 e8N Ne7 c7 Rg6 Na3 Nec6 Qe1 d1Q Qc3 d2 Bg2 d3 Bf3 Bb4 Nf6 Na7 Qc4+ Qe6 Nh5 Nd7 b8B Re8 Bb2 Qe1 Bd4 d1R Bc5 Ra1 Bd1 d2 Nf3 Qg1 Ne1 Bc3 Bf3 Nd4 Bd1 Ba6 c8Q Bb7 Qc6 Bc8 Qc7 Qf1 Bf3 d1B Rg1 h1Q Rg2 Rh6 Kg5 h2 Nf4 Qd3 Rg3 Qb1 Rh3 Rf6 Rh8 Re7 Bg4 Qa8 Bf3 h1B g8B+ Ke8 Be4 Bh5 Bf3 Bg2 Bd1 Bgb7 Bf3 Qd6 Bd1 Re2 Bd5+ Ke7 Bf3 Rh6 Bb6 Qe6 Bc5+ Kf7 Qc6 Rf6 Be5 Ba6 Qc7 Bcb7 Rb8 Bc8 Nfg2 Bab7 Bg3 Rg6+ Kh4 Bd5 Rb2 Ba6 Nf4 Qh8 Rb3 Bc8 Rb8 Rf6 Kg5 Bdb7 Qb6 Rh6 Qc7 Rg6+
1r6/2Nnbrkp/QN2b3/1B2p3/rN6/1qQ2q2/Q1qQP1nB/r2b1nKR w - - 0 1 legal: proof: b4 c5 a4 f5 g4 g5 h4 gxh4 d4 cxd4 g5 a5 Ra3 axb4 Rg3 Bg7 Rg2 Bf8 Rg4 fxg4 c4 Kf7 f4 e5 Kf2 b5 c5 d5 c6 g3+ Kg2 b3 g6+ Kg7 f5 b2 c7 d3 a5 h3+ Kf3 d2 a6 b4 a7 g2 Kf2 d4 Nc3 b1N Ba3 h2 Nd5 b3 Nf3 g1R Qe1 d1B Nb4 b2 Bh3 d3 Qd2 Nf6 Nd4 Nd5 Nb5 Be6 c8N Qf6 Nc7 Ne3 Nb6 Nd7 Qc3 Rb8 a8Q d2 Qa6 Rg4 Bg2 Bc5 Bc6 Be7 Bb5 Ng2 Kf1 Rhf8 Kf2 Kh6 g7 Rf7 g8Q Qg6 f6 Qc2 Nc6 Re4 Bc5 Ra4 Nb4 Qb3 Kf1 Qc2 Bf2 Qb3 Bg3 Qc2 Rg1 h1Q Qd8 Qh5 Rh1 Kg6 Kg1 Qf3 Qc5 Nc3 Qd4 b1Q Bh2 Nd5 Qc3 Qbb3 Qg8+ Kh6 Qd8 Nde3 Qg8 Rg7 f7 Nf1 f8Q Kg6 Qf5+ Kh6 Qd8 Rf7 Qf4+ Kg7 Qfc4 Qbb2 Qa2 Qbb1 Qc5 Qbb3 Qc3 Nc5 Nc6 Qce4 Qc1 Bc2 Qa5 d1R Qdd2 Nd7 Qa6 Re1 Qcb2 Ra1 Nb4 Bd1 Qbc3 Qec2
1rrBr3/1R1Q2qk/2BQr3/Nnp2r1p/K1bB4/1R1n1qRP/2R5/1b3rb1 w - - 0 1 legal: proof: f4 d5 b4 a5 c4 dxc4 f5 axb4 f6 e5 Na3 e4 Nb5 gxf6 Nd4 f5 Ndf3 exf3 Qc2 f4 Qa4+ Ke7 Qd1 Ke8 e4 h5 g4 f5 a4 Kf7 d4 Kg6 Kd2 b5 Kc2 c3 Kb3 c2 g5 f2 d5 f3 d6 f4 h3 Ra6 e5 Nd7 e6 Nh6 a5 Qe7 Rh2 Ne5 d7 Nd3 d8B Nf7 Bb2 c1R Rg2 Kh7 Qe1 Nd6 Rb1 Qg7 Be2 f1Q e7 f2 e8Q f3 Bd4 c6 Qe5 Be6+ Qd5 Be7 Qd2 Re8 Qd1 Rb6 a6 Bf6 a7 Rc3+ Ka2 b3+ Ka3 b4+ Ka4 b2 a8R b3 Rb8 Nb5 Qd7 Bc4 Rb7 Be7 Qd2 Bc5 Qf4 Qd1 Qfd6 f1R Rh2 f2 Nf3 Rc2 Nd2 Rc3 Bg4 Qf3 Be6 Rcc1 Bd5 Rc2 Rg2 Rcc1 Rg3 Rc3 Rc1 b1B Rc2 b2 Nb3 Ra6+ Na5 Rb6 Ra7 Rb8 Rc7 Rfe1 Ra7 f1R Rb7 R1e6 g6+ Kh6 Be5 Bg1 Bd4 c5 Bc6 Rc8 Rd2 Rcc1 Rc2 Rce1 Qd5 R1e5 Q5d6 Qh8 g7 Kh7 g8R+ Qg7 Rf8 Rg5 Rf4 Rf5 Re4 Bba2 Ree2 b1R Rc3 Rb2 Rec2 Bb1 Rb3 Na7 Ra3 Rb6 Rb3 Nb5 Rc7 Rbb8 Ra7 Qe3 Rb7 Qf3
Qbq3N1/2r2bk1/B2nb3/pR2N2Q/1bqQnQ2/P1R1K2p/2r2bb1/2R3q1 w - - 0 1 illegal: No possible last move, all moves rejected
5r2/Bqn4N/1r2n1p1/bkp1Qb1r/nn4r1/B1Q3P1/1Q3nBb/K2NQR2 w - - 0 1 legal: proof: b4 e5 c4 h5 a4 a5 f4 exf4 c5 axb4 c6 h4 g3 h3 Ra3 dxc6 Rf3 c5 Rf2 c4 Rg2 hxg2 h4 Kd7 d4 Kc6 Kd2 b5 Kc2 f5 Kb2 g6 e4 f3 e5 c3+ Ka2 b3+ Ka1 c2 a5 f2 a6 b2+ Ka2 b4 h5 f4 a7 f3 h6 Nd7 h7 Ne7 e6 b3+ Ka3 Nc5 Nh3 g1B Rh2 Qd7 Nd2 b1R Bg2 f1N d5+ Kb5 d6 f2 Qg4 b2 Ka2 Nc6 e7 Ne6 e8Q Ne3 Nc4 f1R Qd4 Nd5 Qe5 Rf4 Ne3 Rg4 Rh1 Bh2 Ng5 Bh6 Rf1 Nb4+ Ka3 c5 Nd1 Rb8 a8Q Ndc7 Qf3 Rb6 Qe1 Rf8 h8Q Qc6 d7 Qb7 Nh7 Bd2 Qb3 Ra1+ Qa2 b1N+ Kb2 Nc3 d8B+ Bd7 Qb1 Ra8 Qd4 Na4+ Ka1 Bc3+ Bb2 c1N Qa2 Bd2 Ba3 Ncd3 Qab2 Nf2 Qdc3 Rf5 Qeh8 Rh5 Qhe5 Rb8 Be7 Rf8 Bd6 Nd5 Bb8 Ndc7 Qf5 Ng7 Qfe5 Bf5 Ba7 Nge6 Qbc1 Nbd5 Q3b2+ Bb4 Qbc3 Ba5 Q1b2+ Nb4
4nq1b/p3bp2/RN2qB1R/5R2/3Q1QB1/P3n1nb/R1b1b2b/1B2Krkr w - - 0 1 legal: proof: f4 b5 g4 g5 c4 gxf4 d4 bxc4 Nc3 e5 Ne4 exd4 g5 h6 Nf2 h5 Ng4 hxg4 e4 Ke7 h4 Ke6 b4 Ke5 b5 c5 h5 d5 g6 g3 b6 d3 a3 Kd4 h6 f3 b7 f2+ Kd2 g2 h7 Bh3 e5 Ne7 g7 Nd7 g8Q Rb8 e6 Nf5 e7 Nf6 e8B Ne3 Ba4 Be7 Bd7 Ne8 Bb2+ c3+ Kc1 d2+ Kb1 c4 Qf3 d1B Kc1 Bc2 Bd3 f1N Ba4 Ng3 Bb5 Qc8 Rh2 Qe6 Be2 Rd8 Bd1 Kd3 b8R d4 Ne2 g1B Rg2 Bh2 Qg7 Rd5 Bc6 Rf5 Rb6 Rf4 Bb5 Rf6 Qfg4 Rf1 Nf4+ Ke4 Q7g5 d3 Ra2 Kd4 Q4h4 Ke4 Re2 Kf3 Re1+ Kf2 Ra6 Kg1 Bg4 Ba4 Qg7 c2 Kd2 Bb3 Qd4 c1B+ Kc3 d2 Nd5 d1B Nb6 Bf3 Qh6 Ba4 Qhf4 Be2 Bc6 Bb3 Be4 Bc2 Ba1 Bb2+ Kd2 Ba4 Bb1 Bc2 Qdd6 Bg7 Bf6 c3+ Kc1 Rg8 h8R Rf8 Rh5 Rh8 Rf5 Rh4 Qdd4 Bh8 Qfd6 Be4 Qf4 c2 Kd2 B4d3 Rd1 Rh6 Kc3 Rh4 Rd2 c1Q+ Rdc2 Qb2+ Kd2 Qbb3 Rc6 Bc2 Be5 Qh6 Rd6 Qf8 Rh6 Qe6 Bg7 Kg2 Bf6 Rh1 Bh5 Kg1 Ke1 Rg4 Qb8 Re4 Bg4 Rf4 Qbd6 Rf3 Q6f4 Rf1+
1bNQ1b1n/1K2QQ2/2r5/8/1pNbNQ2/pr4rR/Pb2b1nr/B2qR1qk w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 cxb6 Ng1 b5 Ba3 b4 Bb2 Nd7 Bc1 Nb8 Ke2 b3 Ke3 Kd7 Kd4 Ke6+ Kc5 Ke5 h4 Kf4 c4 e5+ Kb5 a5 d4+ e3 c5 g5 c6 e4 d5 b2 d6 g3 h5 g4 d7 a4 h6 a3 h7 Be7 f3 Nh6 c7 Na6 Kb6 Nc5 Bd2 Ne6 Qf1 Nf7 Qc1 Ra6+ Kb5 Rc6 Nc3 b1R+ Ka5 b5 Rh3 b4 Na4 Ba6 Nc5 Rb3 Qb1 Bd3 Bc3 e2 Be1 e3 Bd2 e1B Bc3 e2 Rh4 Bd2 Qf1 e1B Rb1 Bc1 Ba1 Be2 Rh2 Ke3 f4 Bb2 f5 Nf4 Nf3 g1R f6 g2 Ne4 g3 Ne5 Bf2 Nc4+ Kf3 Qc1 Ba7 Qd2 Bb8 Re1 Rg8 h8Q Rh1 Qc1 g1B Qh7 g2 Rh3+ Rg3 Qg6 Bb6+ Ka6 g1Q c8N Kg2 Kb7 Nh8 f7 Rh2 f8Q Kh1 Qgf7 Ng2 Qcf4 Be3 Q8e8 Bf8 Qee6 Qe7 Qee5 Qd6 d8Q Qd1 Qee7 Bed4
5b2/qQ2K3/2b1npb1/R1Q2B1R/1nRNn1q1/rp3PN1/Q1r1Rn2/3k1bn1 w - - 0 1 legal: proof: d4 a5 Kd2 c5 h4 cxd4 b4 axb4 h5 e5 h6 e4 Na3 e3+ Kd3 gxh6 Nb1 h5 Bd2 exd2 Rh3 h4 Rh2 Nc6 Rh1 Nb8 Kc4 Ke7 Kc5 Ke6+ Kc4 Ke5 a4 Ke4 g4 b5+ Kb3 d5 c4 h5 c5 h3 c6 h4 g5 h2 g6 d3 g7 f6 e3 h3 c7 d4 a5 Na6 Qc2 d1N Ra4 Nc5+ Ka2 b3+ Ka3 b2 Kb4 Ne6+ Qc5 d2 a6 d3 a7 Qd7 Be2 Ne7 g8R Nc6+ Ka3+ b4+ Kb3 Nc3 Kc4 d1N Rg5 b3 Na3 b1B Bg4 d2 Nc2 Nb4 Nd4 Ne2 Rh5 Rh7 Ra5 Ndc3 Rh4 Bb7 c8Q Bc6 Qb7 d1Q Rh5 Rc8 a8Q Qc7 Rh4 Qb8 Qaa6 Qa7 Rh5 Rhc7 Rh4 Ra8 Rh5 N2f4 Nge2 Rcc8 Re1 h1B Rg1 h2 Re1 Qd2 Rc1 Bg2 Bh3 h1N Bg4 Nbd5 Bh3 Qd1 Bf5+ Ke5 e4 Nh3 Rc2 Ng1 Ng3 Kf4 e5 Qg4 f3 Ke3 Rc1 Nb4 Rc2 Nf4 e6 Nf2 e7 Ne6 e8R Nce4 Rc3+ Kd2 Rc2+ Kd1 Re2 Rcb8 Rc8 Bf1 Rc7 Be8 Rc6 Rc8 Rc7 Nbd3 Kd5 Bg6 Kc6 Nb4+ Kd7 Bd3 Rb5 Bc4 Qa2 Bd5 Ra5 Qb6 Rb5 Ra3 Ra5 Qa7 Rc6 Bg7 Rc7 Bc6+ Ke7 Rd8 Nc2 Rd2 Nd4 Rc2 Qe5 Bd7 Rc4 Bc6 Qc5 Bf8+
8/2B1bn1B/bBr4p/3p2kq/Qq1bQR2/K4b1R/2NR1nBP/1r1b2nn w - - 0 1 illegal: No possible last move, all moves rejected
k2bR1K1/1n2rp1B/1r1Rpr2/Nq1RQQ1n/2Q1q1n1/4n3/b1r1PBn1/6R1 w - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 d4 axb4 Nd2 c5 Ne4 cxd4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 d5 a4 Kd7 c4 Kc7 h4 b5 c5 Kb7 g6 b3 a5 g3+ Kf3 d3 g7 b4 h5 b2 h6 b1R h7 d4 Ke4 f3 Ke5 d2 Qb3 d1N Be3 f2 Ra3 d3 Rh2 d2 Rg2 Nh6 g8R Qb6 Qc3 b3 Qc1 b2 Qc3 Be6 Qb4 Ba2 Qc4 Qb5 Nf3 Ra7 a6+ Ka8 Rg1 g2 Ra5 Ng4+ Kf5 Bg7 Nd4 Bf6 Rg6 Nc6 Nb3 Rc8 h8Q Nd8 Qg7 Bh4 Qe5 Nb7 c6 Bg5 c7 Bf6 Rh1 g1R Bh3 f1N Bf2 Bg5 Rd6 Nde3+ Ke4 Rg2 Rg1 d1N Kd4 Rg3 Bg2 Bf6 Be4 Rf3 Bh7 Ng2 Ke4 Ng3+ Kd4 Qc6 Rad5 Qb5 Na5 Nh5 Ke4 Nde3 Kd4 Rb8 c8Q Rc1 Qf5 e6 Ke4 Rc2 Kd4 Nd8 Ke4 Re7 a7 b1Q Kd4 Q5b3 Kc5 Nb7+ Kc6 Ree8 Kd7 Bh4 Qfd3 Rf6 Qdf5 Rf8 Ke7 Qb5 Qc6 Rfd8 Qc8 Rd7+ Kf8 Re7 Kg8 Nd8 Qc7 Q1b4 Qcc3 Qe4 Qc4 Rb6 Nb3 Kb7 a8R Bg5 Rb8+ Ka7 Na5 Nb7 Re8 Rc7 Rdd8 Rh6 R8d6 Bd8 Qc5 Ka8 Qb4 Rf6 Qc4 Re7
KB5k/Q2p3N/2bnBbq1/1b4Qr/3bB1r1/n1NP1N2/1BR3qp/2r1b2r w - - 0 1 legal: proof: e4 a5 b4 axb4 a4 g5 h4 gxh4 e5 c5 e6 c4 Ra3 fxe6 Qf3 e5 Rb3 cxb3 Qd1 e4 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 e5+ Kb5 b2 c4 h3 f4 e3 g4 b3 c5 h2 g5 h4 f5 e2 c6 e1B c7 e4 Kb6 e3 g6 h3 a5 e2 a6 Ne7 a7 Nec6 Na3 b1Q Nc4 b2 Na3 Nd4 Nc4 Bf2 Ne3 e1B Qg4 Na6 Ng2 Nc5 Bc4 Nb5 Nf4 Rh5 f6+ Kh8 f7 Bd4 Qg5 Be7 f8B Bef6 Nf3 Na3 Bd6 Qg8 Nd5 Qf5 d3 b1R+ Bb2 Rc1 Rg1 h1B Nc3 h2 Be6 Qg4 Rf1 Qg2 Rf2 Rb8 a8B Qh7 Ka7 b5 Bed5 b4 Be6 b3 Rc2 Rb4 Be4 Ba6 Ka8 Nb7 c8Q+ Qg8 Qd8 Bb5 Bb8 Qe8 Qa5 Qf7 Ba1 b2 Qa7 b1R g7+ Kg8 B6f5 Qg6 Be6+ Kh7 g8N Kh8 Bc6 Bb6 Bcd5 Rg4 Bb2 Bbd4 Be4 Bg3 Ne7 Qe2 Nh4 Re1 Bc4 Rbc1 Bf3 Bg7 Ng8 Bg2 Ba2 Rh1 Nf6 Be1 Nh7 Bgf6 Be6 Qf2 Bfd5 Be4 Nf3 Qg2 Ba2 Bec6 Bad5 Rf4 Be4 Rfh4 Qd5 Rg4 Qg5 Nd6+
kb1Qn3/1Nn1pq1Q/1p2r1BN/rQb5/1r4R1/Q1N1bRrb/K1q1P2b/8 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 Kd2 d5 Kc1 Kd7 Kb2 Kc6 c4 g5 a4 d3 f4 d2 h4 b3 h5 d4 c5 b6 f5 Kb7 h6 g2 a5 g3 f6 d3 h7 g4 f7 Nf6 Ra4 Bh6 f8Q Qe8 Ra2 Be3 Nh3 g1B Ka3 g2 Ng5 g3 Nf7 b2 Rh3 Bh2 Nh6 g1B Nc3 b1R Qa4 d1R Qb5 g2 Rf3 Qf7 Qd8 Rg8 h8Q d2 Qh7 Rg3 a6+ Ka7 c6 Ne8 c7 Rb4 Rb2 Bh3 Rb3 Bgf2 Ka2 g1B Bg2 Bf4 Bh1 B2e3 Bg2 Bd6 Rf4 Rc1 Be4 d1Q Rg4 Bec5 Bg6 Bge3 Nb1 Rcc4 Nc3 Qd3 Ra3 Re4+ Rb3 Re6 Ra3 Nd7 c8N+ Kb8 Rb3 Ndf6 a7+ Kb7 Ra3 Nd5 Rb3 Bdf4 Ra3 Ndc7 Rb3 Rb8 Nd6+ Ka8 Nb7 Qdf5 Rb1 Qd3 Rf1 Qd1 Rf3 Qc1 Qd4 Rd8 Qd1 Rd5 Qb3 Rg5 Qa3 Qc2+ Ka1 Na6 Qba5 Bcd4 Nd8 Bb8 Q5a4 Ra5 Qb5 Qd3 Ka2 Bc5 Nc6 Kb7 Nd8+ Kc7 Ka1 Qc2 a8Q Ba7 Qd5 Kb8 Nb7 Ka8 Qd1 Bb8 Qd8 Qd3 Ka2 Nac7 Qg7 Qd1 Qh7 Qc2+
6BQ/1r5R/1KQN2QN/2R1b1Rp/r2p1qqP/bb3r2/r5qQ/1b1kn1n1 w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Bd2 e4 Bf4 gxf4 Kf2 Kf7 h4 Kf6 c4 Ke5 a4 b5 g4 h5 c5 d5 g5 d3 c6 Kd4 f6 e5 g6 d2 f7 f3 g7 b3 c7 e3+ Kg3 b2 a5 e4 Kf4 e2 a6 Kd3 Ke5 b4 a7 d4 Ra5 e3 Ra6 b3 Qc1 d1Q Ra3 f2 Ra2 Nh6 g8R Nc6+ Kf4 Qd5 Ra4 Nf5 Ra5 Ng3 Nd2 b1R Ne4 b2 Nd6 Be6 c8Q Qg2 Ra2 Bb3 Qb8 Ne5 Qc6 Kd2 Nh3 e1R Rg5 Nf3 Bc4 f1Q Nf2 Ne2+ Ke4 Neg1 Kd5 Re2 Kc5 Ne1 Ng4 Qf4 Kb6 Bg7 f8Q Be5 Qf5 Rf8 Qf6 Rf2 Bd5 e2 Bg8 Rf7 Ra3 Rf3 Qf5 Ra1 Nh6 b1B Qg6 Ra2 Ra4 Nc2 Ra5 e1B Rc5 Kc1 Rh3 Bb4 Rhg3 Ba3 R3g4 Kd2 Rg3 Ne1 Qbc7 Re8 a8Q Qde2 Qad8 Kd1 Qdf6 Ra8 Qh8 Ra4 R3g4 Qfe4 Rf4 Re7 Rf7 Qf4 Rh7 Rf7 Qc8 Rfa7 Qh3 Qgg4 Qh1 Qeg2 Qh2 Rb7+
k3N1N1/q1K2N2/rr2b1bb/1r3qnq/3Npr2/2R1R1pQ/BR1nQ1P1/5b2 w - - 0 1 illegal: No possible last move
1r1kr3/KBrpr1n1/2bQbBNB/8/1RB5/qnb1p3/R1bqP3/3R1Qq1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Nd2 h4 Ne4 fxg6 Ba3 g5 Ng3 hxg3 Bc1 g4 Kd2 e5 Kd3 b5 f4 g5 c4 g2 a4 b3 h4 b2 h5 b1B+ Qc2 g3 a5 e4+ Kd2 e3+ Kd3 g4 h6 b4 a6 b3 f5 b2 a7 Na6 c5 Rb8 Kc4 d3 a8R d2 f6 d1Q h7 Qe7 c6 Qd2 c7 Qa3 Nf3 g1R Qd1 g2 Ra2 g3 Nh4 Bg7 Ng6 Bb7 Kb5 Nh6 Kb6 Nf5 c8B Bc2 f7+ Kd8 f8B b1B Bb2 Bc3 Bh6 Re8 h8Q Ng7 Qf8 Bc6+ Bb7 Nc5 Qd6 Nb3 Ra4 Bf5 Rc4 Bbc2 Rb4 Be6 Ba1 Na5 Ka7 Nb3+ Ba6 Re7 Rh5 Rh1 Rd5 g1Q Bg2 Rh3 Be4 g2 Qf1 Rf3 Bd3 Rf8 Bc4 Rfe8 Bb2 Qf2 Rd3 g1R Rd4 Rg5 Ba1 Rc5 Rd3 Ba4 Bb7 Rc7 Rd5 Qg1 Bb2 Qe1 Rd1 Bc6+ Ra4 Ba5 Bf6 Qd2 Rb4 Ba4 Rb6 Bc3 Rb4 Bc6+
1R1Kn2n/2b2p1N/2p4B/2PN1q2/4rqrk/QB1q1rNB/2bBqnQ1/6n1 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 dxe4 g4 axb4 f4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 Ke2 e5 c4 Ke7 h4 b5 d4 b3 h5 g3 h6 b4 c5 f3+ Ke3 b2 g6 Kf6 a5 Kg5 a6 g2 h7 c6 d5 f2 a7 b3 g7 Qf6 d6 Bf5 d7 Bd6 d8N Nd7 Be2 f1Q Rh3 Nf8 Qd2 Ng6 Bd1 Bc7 Rg3+ Kh4 Nc3 b1Q Ne6 b2 Nge2 g1N Bb3 Qd1 Nf8 Qd3+ Kf2 b1Q Nd5 Rb8 a8Q Rb4 Qa3 e3+ Kg2 e4 Qc2 Nf3 Bd2 Ng1 Rg5 Rd4 Ng3 e2 Qca2 e1N+ Kf2 Q3c2 Ke3 Nd3 Q2b2 Nf2 Qba2 Ne5 Kf4 Qd3 Rg6 Qd6 Re6 Ra4 Re8 Nf6 Rb8 Q1e2 Q2b2 Rg8 h8B Ne8 Nh7 Rc4 Qc2 Rc3 Qca2 e3 Q2b2 Kh3 Kg5 Ng6 Qc2 Qf3 Qca2 e2 Q2b2 e1R Qba2 Rf8 g8B Re4 Bg7 Qfe2 Bh6 Nh8 Q2b2 Ng7 Qc2 Qf4+ Kf6 Kh4 Qca2 Rfe8 Q2b2 Ra4 Qc2 Re3 Qcb2 Be4+ Ke7 Ne8 Qba2 Bg6+ Kd7 Re6 Qc2 Qdf5 Qe4 Rd4 Qg2 Rf3 Kc8 Qbd3 Kd7 Bd6 Kd8 Ree4 Qh1+ Qh3 Ra8 Ree3 Ra6 Qg4 Ng5 Qc3 Ra8 Bc2 Rb8 Qcd3 Bh7 Re5 Bf5 Bc7+ Kd7 Rdf4 Qg2 Ree4 Nh7 Qg5 Kc8 Qhg4 Bd7 Q4h5 Bh3 Rg4 Kd7 Qf4 Kc8 Be5 Kd7 Qhf5+ Kd8 Bc7#
1n4B1/qp3bq1/1Pnr2RB/k3b3/2rQnpN1/1Q3qB1/2n1Q3/rqB1KN2 w - - 0 1 legal: proof: b4 d5 a4 a5 c4 dxc4 f4 e5 g4 exf4 b5 h5 Ra2 hxg4 Rb2 Bd7 Rb3 Bc8 Rb4 axb4 h4 Kd7 e4 f5 d4 c5 d5 Kc7 a5 g5 e5 b3 a6 Kb6 a7 c3 d6 b2 h5 c2 e6 f3 h6 g3 e7 g4 e8Q c4 d7 f2+ Kd2 g2 h7 c3+ Ke2 g3 Bd2 c1R Qe6+ Ka5 Bf4 c2 Qed5 Qf6 Q5d3 Ne7 Qc4 Nec6 Rh6 Bg7 Qdd4 Rd8 Nh3 g1Q h8B g2 Nd2 b1N Bg3 Na3 Qb3 f4 Rg6 Qh1 b6 g1Q Qe4 Qa1 Qd4 Be5 Bg7 Qa2 Bh6 Qd5 Bg2 f1N Nf2 Ra1 Bh1 c1Q Ng4 Nc2 Be4 Qa4 Bd3 Qb1 Bc4 Qdh1 Bg8 Qa3 Bf8 Qa4 Ba3 Qh5 Bc1 Qaa2 Nf3 Nd2 Nfh2 Ne4 Nf1 Qg2+ Kd1 Qh8 Nfh2 Qg7 Nf1 Re8 d8B Re6 Bg5 Rd6 Bh6 Be6 Nfh2 Bf7 Nf1 Qh3 Ke2 Na6 Kd1 Rc8 a8Q Rc7 Qc8 Nab8 Qce6 Qg2 Qec4 Qf3+ Qe2 Ne7 Re6 Rc4 Rg6 Nec6 Qe3 Kb5 Qed3 Qa7 Qb3+ N2b4 Ke1 Ka6 Qdc3 Ka5 Qd4 Nc2+
3q2k1/r3nn2/2RN4/r2n1b1B/pQK1N1qR/Pn2bN1b/R1N2p2/3qqQ2 w - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 b5 b3 bxc4 Bb2 h6 Bf6 gxf4 g5 Nd7 g6 Nb8 Bg5 hxg5 Ke2 f5 d4 a5 h4 e5 d5 c5 b4 g4 h5 a4 b5 f3+ Kd2 f2 Kc3 f4 g7 Kf7 d6 e3 h6 g3 a3 g2 h7 f3 d7 e2 b6 e1Q+ Nd2 e4 b7 e3 Rb1 e2 Rb6 Nh6 g8N Ra5 Rb4 Nc6 b8Q Ne7 Qb3 Qd1 Qh2 e1Q Bd3 f1B Bb1 f2 Ne2 g1Q Rb6 Bh3 Qb4 Qg4 Nf6 Rg8 h8R Rg7 Bf5 Rh7 Ne4 Rg7 Rh7 Kg8 Bg6 Nf7 Rh5 Rh7 Qg1 Bh6 Nd4 Be3 Rh4 Rg7 Qf1 Rh7 Kb2 c3+ Ka2 c2 Kb2 c1N Kc3 c4 Bh5 Rg7 Rc6 Nd3 Nc2 Nf4 Rg1 Qb6 d8N Bf5 Nb7 Qd8 Nbd6 Rh7 Qb8 Rg7 Kb4 c3 Kc4 Nfd5 Nf3 Rh7 Qb4 Rg7 Na1 c2 Rh1 c1N Nc2 Rh7 Nfd4 Nh8 Qd2 Neg6 Ne8 Nb3 Qg2 Rha7 N8d6 Qa1 Nf3 Nge7 Qb4 Qeb1 Rc1 Nf7 Qf1 Qbb2 Rb1 Qc1 Rb2 Qe1 Ra2 Qad1
r3bb2/n3Rrk1/KpNr4/2B2p1Q/1P5q/1b3q2/1bN1QR1Q/3rnQqN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 e5 d5 exf4 d6 a4 Bg2 cxd6 Be4 d5 Bf5 d4 Be6 Ne7 Bd5 Ng8 Bb3 axb3 Kd2 d5 Kd3 g5 h4 f5 c4 Kf7 e4 b6 a4 f3 h5 f2 h6 f1Q+ Qe2 g3 e5 g4 h7 b2 e6+ Kg7 e7 g2 e8Q g3 a5 Bd7 c5 Nc6 a6 Qf3+ Be3 Na7 c6 Nh6 c7 Ng4 c8N Qh4 Na3 b1B+ Nc2 Ba2 Rf1 Bb3 Nh3 g1B Qh5 g2 Nf2 Nh2 Ne7 Be8 Nc6 Rg8 Ne4 Bf2 Ng3 g1Q Re1 Rh8 Rf1 Be1 Rf2 Bc3 Qf1 Bb2 Qe2 Qgg2 Re1 Qg1 Nh1 Rg8 Kd2 d3 Bc5 d4 Qf1 Kf6 h8Q+ Rg7 Q8h7 Rf7 Re7 Qfg2 Qhe2 Qf3 Qh5 Kg7 Qh3 Ng4 Qh2 Ne3 Qf1 Ng2 Qe2 Nb5 a7 Ne1 Qf1 Rc8 a8Q Na7 Qb7 Ra8 Qa6 Qe3+ Kd1 d2 Qac4 Qeh3 Ke2 d1R Qd3 Qhg2 Qa6 d3+ Ke3 d2 Qae2 Nf3 Kd3 Ba4 Re4 Ne1+ Kc4 Qf3 Ne5 Nc8 Nc6 Bb3+ Kb5 Na7+ Ka6 Rb1 Re5 d1R Re4 Rd6 Re7 Rbd1
1Rb4b/Rn3Kqq/2Q1N2b/1p2rN1n/1q1RN3/qP1p1kn1/B1R4n/Qr6 w - - 0 1 illegal: No possible last move, all moves rejected
2R2RQ1/qp2R1bK/Q3r3/1pR1r1N1/3k2bB/1Pn1b1nb/q1B1r2r/3q3Q w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 e5 g5 exf4 g6 a6 Na3 hxg6 Qd3 g5 Qd1 g4 Nb5 axb5 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 d5 c4 f5 b3 g5 a5 g3+ Kf3 g2 a6 d3 a7 d2 h5 d4 e5 d3 e6 g4+ Kf2 f3 Kg3 f4+ Kh2 g3+ Kh3 f2 Kg4 f3 Kf5 Na6 Kg6 Nf6 h6 Ne4 h7 Nb4 e7 Bg4 e8Q Kd4 c5 Qa5 c6 Qa2 c7 Bg7 c8R Nd5 Rb1 Ndc3 Qc2 d1R Rb2 d2 Rh5 Re1 Bd3 f1R Nh3 d1Q Rhc5 g1Q Qg8 g2 Ng5 f2 Qb1 Re2 Bc2 Ng3 Rf8 Rd8 a8Q Rd5 Qa6 Rfe1 Bf4 f1B Bc7 Nh1 Bg3 Rde5 Bh4 Ng3 Qa1 Qe3 Rb1 g1B Rc1 Qdd2 Rf7 Bfh3 Re7 Rh2 Qb1 Ree2 Rf1 Qd1 Rf8 Qdd2 Qf1 Qd1 Qf3 Qf2 Qh1 Qe3 Qge6 Rg8 h8R Bf2 Rfc8 Re8 Rf8 Bg1 Kh7 Qf2 Rec7 Re7 Qg8 R7e6 Qb6 Qa7 Re7 Qg2 Qa5 Be3 Qb6 Qc6 Qa5 Qca6 Qb6 Qa5 Qa6 Qa2
1bQb1k2/n3N2R/4RNB1/qQ1b1p1R/rpn4K/N5q1/1P1q1R2/b1rr2q1 w - - 0 1 illegal: No proof kernel
1b5q/3q1b2/Qn1Br2N/pNnN1Qb1/2r1R1Rn/Pr1p4/1R2K3/Rbk2r2 w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Rb1 f3 Bg2 fxg2 Ra1 hxg6 Nb1 g5 Qb3 g4 Qc2 Nf6 Qd1 Ng8 h4 d3 f4 Ke7 b4 Ke6 e4 g5 b5 a5 a3 c5 h5 d5 h6 g3 e5 Kf5 h7 Ke4 b6 d4 e6 g4 f5 d2+ Ke2 c3 e7 c4 e8N c2 b7 c3 f6 Bd6 f7 Ra6 f8R Ne7 Rf7 Bf5 Ra2 Nd7 b8Q Nc8 Bb2 c1R Rg7 c2 Qb5 Bb8 Qa4 Re6 Nh3 g1R Qb5 g2 Rg8 g3 Rg7 Ncb6 Qb3 Nc5 Qc4 Qd7 Qe1 Bg6 Nf4 Bf7 Qf1 d1B+ Ke1 Ke3 Nc3 Rg8 Rh2 Rh1 h8R g1Q Nd6 g2 R2h4 Qh2 Qa6 g1N Ncb5 Qh3 Rg2 Rg3 Rg8 Qh2 Rd2 Be2+ Rd1 Bd3 Ra1 Rf3 Rg2 Rg3 Rg4 Qh8 Rd2 Bc4 Rf2 Ba2 Rg2 Bb1 Nf5+ Ke4 Nh6 Nf3+ Kf2 Nh4 Re1+ Re3 Re2 Rg1 Nd5+ Kd3 Re1+ Kd2 Rh2 Rc3 Ree4 Rgg3 Rg2 Rc4 Rh2 Re1 Bc1+ Kd1 Bf4 c1B Be5 Rb3 Bd6 Bg5 Rhg2 Kc2 Rh2 Ree3 Rhg2 Rf3+ Ke1+ Kc1 Rb2 Rf5 Qf2 Rf4 Ke2 Rff3 Qg1+ Rf1 Qf2 Nb7 Qf3 Nc5 Qf5 d3+
5qk1/q1pBn1rN/1n3Q2/p1Q4n/2Pb3R/rR4rb/Kb2NNQ1/nQr5 w - - 0 1 illegal: No possible last move, all moves rejected
1q1K3Q/nB4Rp/7b/2B5/q2pqrbR/n1N3QP/2k1bb2/R1nrBB1q w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 Nc3 f5 Nd5 fxe4 f5 axb4 Nf4 gxf4 Kf2 Kf7 c4 Kf6 a4 Ke5 g4 b5 c5 d5 c6 f3 Kg3 f2 Kh4 e3 Kg5 Ke4 h3 e5+ f6 e2 a5 e1B c7 b3 a6 b2 a7 b1N Bc4 f1B Ba3 b4 Bb5 b3 Bd7 d3 Bc5 d2 Qc1 Kd3 Bd6 d1Q Bc5 b2 Ra6 d4 Rb6 e4 Qe3+ Kc2 Qg3 e3 Ne2 Nc6 Nc3 Nge7 f7 e2 Kf6 Bh6 f8B Ne5 g5 Nd3 g6 Bf2 g7 e1Q g8R Nc1 Bb5 Be2 Rg7 Bcg4 c8B Na3 Bb7 b1Q Rf1 Rb8 a8Q Nc8+ Kf7 Qd5+ Ke8 Qh1 Kd8 Rg8 Rf6 Qb3 Rf4 Na7+ Bc8 Rb6 Bb7 Rf6 Re4 Rf4 Rg1 Bef3 Bf1 Be2 Qb8 Qa4 Qe5 Qd3 Qe8 Qda6 Bfe7 Rgf8 Bh4 R8f6 Qh8 Q6b5 Re5 Rc6 Rh5 Qbb3 Bg5 Re6 Rh4 Re3 Bge7 Rd3 Bb4 Rd1 Bec5 Ba6 Ne4 Qee3 Be1 Bae2 Nc3 Qee4 Bg2 Na2 Ba6 Rf6 Bd2 Rf4 Re1 Qbb5 Bf1 Rc1 Rd1 Rb1 Be1 Qb8+ Bc8 Rb5 Ra1 Rb1 Rg8 Rd1 Rg7 Qbe5 Ba6 Nc1 Bb7 Qb8+
1rR2r2/bnnN3K/1Rp3r1/1Nq4b/bNb4k/1qR5/p1PB1R2/Q1qQq3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 Kf2 f5 d4 Kf7 b4 Kg6 h4 Kh5 b5 a5 b6 e5 g6 c6 b7 a3 g7 f3 Ke3 a4 d5 g3 d6 g2 d7 a2 Nd2 a3 Nh3 g1R Nb1 f4+ Kd2 e3+ Kd3 e2 Ke4 e1Q+ Kf5 e4 Qd3 e3 Nf2 e2 Nd1 f2 Bb2 f1B Bf6 f3 Bb2 f2 Nbc3 Bc5 Rb1 a1Q Rh2 a2 Nd5 Qb4 Bc1 e1Q N1c3 Nf6 g8R Ne8 Rg3 Qde7 Nb5 Na6 b8N Ba7 Bd2 Qb3 Nb4 Nac7 Qd4 Rg8 Rc3 Bc4 Qe5 f1B Rf2 Ba6 d8Q Bfe2 Nd7 Qc5 Rb2 Nd6+ Kf6+ Kg4 h5 Re8 Kg7 Rf8 h6 Nb7 h7 Qac1 h8R Rb8 Kh7 Bf3 Qd4+ Kh5 Q8f6 Rg6 Rg8 Bg4 Qf3 Kh4 Qd1 Bd3 Qh8 Bc4 Qg7 Bh5 Rb1 Rf5 Rc8 Rf8 Nd6 Nd5 Re3 Bce2 Nd3 Qbb5 Qa1 Nc7 Ref3 Qbc4 Rb6 Bb5 Nb4 Qb3 Rc3 Ba4 Nb5 Bc4
r5Q1/3qb1p1/1q1r4/R2Q1bk1/nRK1Bnb1/b1B1nBq1/4p1PN/1nB3Q1 w - - 0 1 illegal: No proof kernel
R1RN4/rn4n1/R6r/1K5p/1bp2nnr/NB1q1Qn1/2P2RQQ/k1rn3b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 e5 g5 e6 gxh4 Ba3 f4 Bb2 dxe6 Bd4 e5 Bc5 e4 Be3 fxe3 Ke2 Kf7 g4 Ke6 a4 Kd5 f4 Kc4 d4 b5 f5 h5 f6 e5 d5 c5 a5 b3 d6 b2 a6 h3 a7 b4 d7 h2 f7 b3 g5 Rh6 g6 Nf6 g7 Ne8 g8Q Bb7 Qd2 Na6 Qa5 Ng7 Nc3 b1R Ra3 b2 Bh3 Rc1 Qc7 b1N Nd1 Nc3+ Ke1 e2 Kd2 e1N Qc6 Ng2 Qh7 Nf4 Ne2 e3+ Ke1 e4 Rf1 h1N Rf2 Ng3 Nd4 e2 Kd2 e1N Ne6 Neg2 Nb2+ Kb4 Nc4 Ne3 Ra2 Ncd1 Na3 Ng4 Qh8 Be7 f8Q Bd6 Qhg8 c4 Qc7 Nc5 Qff7 Qc8 d8R Qd7 Rc8 Bc6 Nd8 Nb7 Qd5 Ka4 Qd3 Qf5 Qf3 e3+ Ke1 e2 Kd2 e1R Qgd5 Nb2 Kc3 Rh1 Qg2 Qg6 Qdf3 Nd1+ Kd4 Bb4 Qe5 Nf6 Bd7 Ng4 Ra1 Rh4 Qee2 Ka5 Qh2 Be4 Ba4 Bd5 Bb3 Qf5 Qfe3 Bh1 Q3f3 Qg6 Ba2 Ka4 Qfg2 Qh7 Qef3 Nfe6+ Kd5 Qd3+ Kc6 Nf4+ Ne6 Ba5 Bb3+ Kb4 Ra2 Kc3 Kb5 Bb4 Ra1 Kb2 Nd8 Qe2 Nb1 Qe4 Ra6 Qd3 Na3 Ka1 Rc5 Rc8 a8R Rc7 Rcc6 Na5 Rc5 Ra7 Rcc8 Nb7
2bK4/2p1R1Rn/4R3/N2Bn3/4rp2/1bpQqrb1/1k2qPQq/r1nBB2B w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 h4 axb4 d5 g5 Nc3 gxh4 Nb5 e5 Nd4 exd4 Kd2 Ke7 a4 Kf6 g4 Ke5 e4 f5 a5 b5 d6 h5 g5 h3 d7 d3 Ke3 d2 a6 h4 g6 b3 g7 b4 a7 h2 Bh3 b2 Ra3 b1Q Kf3 Kd4 Kf4 b3 e5 Kc3 e6 Bd6+ Ke3 Qa2 e7 Nf6 g8B Nh7 e8R Bg3 Qf1 d1B Nf3 f4+ Ke4 Nc6 Kf5 Ne5 Ke6 Qe2 Ra6 b2 Bg4 b1R Nd2 h3 Qg2 Bb3 Rg1 h1N Re7 h2 Rc6 Qe3 Bd1 Qe8 Rd6 Rb8 a8B Ra1 Ba3 Rb5 Bb4+ Kb2 Ba5 Rb4 Ra6 Bb7 d8Q Bc8+ Qd7 Qh5 Rc6 Qhe2 Bb7 Ba2 Nb3 Ra4 Bd2 c3 Be1 Re4 Bf7 Rg8 Rb6 Rg4 Bd5 Rh4 Na5+ Bb3 Bh5 Rh3 Bf3 Bh4 Rc6 Ng3 Ra6 h1Q Rd6 Nd3+ Kf7 Qh2 Ke8 Ne5 Rde6 Qc4 Kd8 Ne2 Qd6 Nc1 Qa6 Qce2 Qd3 Qd4 Qg3 Qa7 Bh1 Qae3 Qg2 Rf3 Qh3 Rb1 Rg7 Ra1 Qg2 Bg3
5b2/1p1b2pB/B2qQ2n/N2rn1BK/1p1kr1PB/3rR2b/3R1nQ1/q3q2Q w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 b4 fxe4 d5 axb4 d6 h4 Nc3 cxd6 Nce2 d5 Ng3 hxg3 Ke2 d4 Kd2 Rh7 Ke1 Rh8 h4 Kf7 a4 Ke6 f4 Kd5 c4+ Kc5 a5 e5 a6 d5 f5 g2 Kf2 e3+ Kg3 e2 a7 e1N h5 e4 f6 e3 Kh4 d3 h6 d2 h7 d4 Kh5 e2 f7 d3 Nf3 g1R Ra2 Qb6 Ne5 Ne7 Qc2 d1Q Bg5 d2 Nc6 Rg3 Rh3 Rd3 Re3 Nf5 Na5 Kd4 c5 Qd6 c6 Nh6 c7 Bd7 c8B Qa1 Bh4 Rg8 h8Q d1B Qc6 Bc2 Qg2 Nc6 Qh7 Bd1 Rd2 Ne5 Qg6 B1a4 Qe6 Bab5 Qh1 Rb8 a8Q Bbc6 Qa6 Bg2 Qc6 Bh3 Qcf3 Ra8 Qfg2 Ra6 Bg5 Rb6 Bh4 Rb5 Bg5 Rd5 Bh4 Be7 Bg5 Re8 f8B N1f3 Bh4 e1Q Be2 Ng1 Bg5 Bd8 Bfe7 Bc7 Bf1 Bd8 Bef6 Be7 Bh4 Bf8 Bd8 Ne2 Bdg5 Nc3 Be2 Nd1 Bf1 Ba4 Bd7 Re7 Be8 Bd7 Bg6 Nf2 Bh7 Re8 Rb2 Ra3 Ba6 Rd3 Rd2 Nef7 Qf5 Re4 Qe6 Ne5
n4q1k/K4RnB/3p2n1/1r1rQ1NR/b2P1Q2/3nnR2/pr1pbbQ1/2N2R2 w - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 f5 b5 d3 bxa4 f6 c4 Ra2 c3 Bd2 cxd2+ Kf2 exf6 Ra3 f5 Ra1 f4 b4 a5 c4 h5 e4 f5 g4 Kf7 e5 Kg7 c5 a3 g5 f3 Ke3 a4 Kd4 a2 b5 f2 e6 f4 g6 h3 e7 f3 e8R h2 b6 h4 b7 a3 c6 h3 c7 Bc5+ Kc4 d6 Kb5 Bd7+ Kc4 Ba4 c8R Rh5 Rc7+ Kh8 Rc6 Nd7 b8Q Rd5 Rc7 Ra5 Ne2 Rb5 Bg2 f1N Nc1 f2 Re3 Qf8 Qe1 Ne7 Be4 Ng3 Qa8 f1N Nc3 Ngf5 Rf3 Bf2 d4 Ng7 Qe8 Rb2 Qf7 Rdb5 Rb1 a1R Qf4 a2 Bd3 Rd5 Qee5 Rbb5 Ne4 Nb6+ Kc3 Ne3 Ng5 Na8 Bf5 Nc8 Rf7 Ne7 Rf1 h1N Rb2 Rb7 Rb5 h2 Kb4 Rb1+ Ka5 Rb2 Ka6 Rb8 Ra5 R8b5 Bd3 Be1 Bc2 Nf2 Ka7 h1B Be4 Kg8 Bb1 Nd3 Bc2 Bf2 Bb1 Ngf5 g7 Ng6 Ne4 Kh7 Ng5+ Kh6 g8Q Ng7 Rg3 Bf3 Bc2 Be2 Rf3 Nc5 Bf5 Nh4 Bh7 Ng6 Qg4 Nd3 Qg2 Rb8 Qh8 R8b5 Qf4 Nh5 Qhf6 Ng7 Q6e5 Ne6 Re7 R5b3 Qef5 Re5 Nf7+ Kg7 Q5e4 Rg5 Rf5 Rb5 Rd7 Rg3 Rh5 Rgg5 Qd5 Rf5 Ng5+ Kh8 Rf7 Ng7 Qe6 Rfc5 Qee5 Rd5
4QN1K/bp1bN1Rq/1P1k1nQ1/n1p3n1/3rR3/1n1Bq3/pn1Q2r1/2Q2Nb1 w - - 0 1 illegal: No possible last move, all moves rejected
bR4K1/R1nQ3R/2p1N3/r1bnN1pb/k2q1rRb/3n1bP1/1B2p2Q/4qN2 w - - 0 1 legal: proof: e4 d5 b4 h5 c4 dxc4 g3 f5 b5 fxe4 b6 h4 Bg2 h3 Ba3 hxg2 Bc1 axb6 Ba3 b5 Bc1 b4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Ke5 b3 h4 c3 d4 c2 f4 e3 f5 e2 h5 e1Q+ Be3 c1N a3 b2 h6 c6 d5 Nf6 d6 Nd5 f6 Na6 f7 Nac7 h7 Ra5 Nf3 g1B Nbd2 b1B d7 Bg6 Nf1 Bh5 a4+ Kb4 Kf5 b5 Ne5 Bb7 Bd4 Nd3 Bb2 Ba8 Qe2 Ba7 Qh2 Bc5 Rb1 Bf3 Kg6 e6 Rd1 Bfe7 f8N Bh4 Kf7 Rg8 h8R g5 Rh7 Rg6 Rg1 Rf6+ Kg8 Rf4 Rd2 Qf6 d8Q Kb3 Re2 b4 Qd7 Qd8 Re4 Qf6 Neg6 e5 Ne6 Bh5 Rc4 e4 Ne5 e3 Re4 e2 Rd4 Rb5 a5 Ka4 a6 Ra5 a7 Bf3 Nc4 b3 Rh1 Rf5 Rg4 Qd4 Ne5 Rf4 Bc1 Bb7 a8R b2 Ra7 b1B Bb2 Ba8 Rg1 Bc2 Nd2 Qef2 Rb1 Qe1 Nf1 Nf2 Ba3 Bg6 Rb8 Nd3 Bb2 Bh5
b2b3Q/1kr1b1np/1n2rq2/p2p4/Qb1bB2Q/Q1NP1n1q/7B/K2NR1N1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 e5 gxh4 b5 f6 Ra2 fxe5 Rb2 e4 Rb4 cxb4 f4 e5 c4 a5 g4 d5 b6 Kd7 c5 Kc6 g5 e3 g6 e2 g7 h3 d3 e4 Kd2 e1B+ Kc2 a3 f5 a2 Kb2 a1B+ Ka2 h2 f6 e3 b7 e2 f7 b3+ Ka3 b2 Ka2 Bb4 Nc3 e1B Bh3 b1N Bf4 Nh6 g8Q Be7 f8Q B1h4 Qg5 Nd7 b8Q Bb7 Bg2 Ra6 Be4 Ba8 Qb3 Ra7 Nd1 Nb6 Qg3 Bhg5 Qh4 Nf5 Qe8+ Rd7 Qa3 Bd4 Qe5 Rg8 Qh8 Kb7 Bg3 Rd6 Qea4 Nd2 Bf4 Ng7 c6+ Kc8 c7 Nf3 Bg3 Kb7 c8N Re6 Na7 Rf8 Bd6 Rf7 Nb5 Qf8 Kb1 Bd8 Bg3 Rc7 Nbc3 Bge7 Ka1 Qf5 Ne2 Qf8 Re1 h1Q Ng1 Qh3 Bh2 Qf6
2B2K2/qp2n1qq/1q2r3/q2Rp2N/QP2Qn2/rp1QNb2/4b1N1/2b2QBk w - - 0 1 legal: proof: b4 c5 d4 cxd4 e4 g5 h4 gxh4 a3 f5 Ra2 fxe4 Rb2 a5 Rb3 a4 Bd2 axb3 a4 Qa5 Bc1 Qd8 Ke2 Kf7 c4 Ke6 f4 Kf5 g3 Kg4 a5 d5 a6 h5 f5 e5 c5 h3 a7 h2 c6 e3 Kd3+ e2 f6 h4 c7 h3 f7 Bh6 f8Q Ne7 Qg8+ Ng6 Nc3 Nc6 Be3 Ne7 Qh7 Re8 Nf3 e1Q Bg1 Qf2 Qc2 Bf4 Nh4 Bc1 Ng2 Kf3 Nd1 Bg4 c8Q Qa5 Nde3 Bh5 g4 Kg3 g5 Bf3 Ng4 Qb6 Q2c3 Qa2 Q8c4 Qa3 Be3 Qaa5 Rg1 h1Q Be2 h2 Rd1 Qa4 Bg1 Qaa5 Qf7 Kh3 N4e3 Kg3 Qf4+ Kh3 Qe4 Kg3 Nh4 Qg2 Qc2 Qf2 Nhg2 h1Q Qb1 Qh7 Qa6 Nf8 g6 Ne6 g7 Kh3 g8N Qg3 Qa1 Qgg7 Nf6 Kg3 Bf2+ Kh2 Bg1+ Kh1 Qc4 Bb2 Nh5 Nf4+ Kd2 d3 Bf1 Bc1+ Kc3 d2 Qcd3 d4+ Kc4 Rad8 a8Q Rb8 Qa6 Ra8 Qa4 Be2 Nh4+ Bf3 Bh3 Ra7 Qf1 d3 Nhg2 Raa8 Bc8 Ra7 Re1 d1B Q6b5 Bde2 Rd1 Ra8 Qd7 d2+ Qdd3 Qbf6 Qb5 Qfa6 Kc5 Qa7+ Kd6 Q5b6+ Kd7 Qaa5 Qa4 Qba7 Re1 d1Q Kd6 Qc2 Rd1 Qcc5+ Kd7 Qcb6 Rd2 Rf8 Rd1 Rf6 Ke8 Re6 Rd2 Qg4 Kf8 Qg5 Rd1 Qgg7+ Ke8 Qd4 Qa6 Qc7 Qa3 Qab8 Qb5 Qdc5 Rd5 Q7b6 Qbd3 Ra6 Qa5 Q8a7 Qab5 Ra3 Qa4 Qg4 Kf8 Qca5 Ng7 Qg5 Nh5 Qgg7+
5bq1/b1kpQN1B/2nb1R1Q/5q2/n7/p2K2Qq/b1pP1B1R/r1r1R1Qb w - - 0 1 illegal: No proof kernel
BR2n1Kn/4Q2r/rpNN1pn1/2r5/2Qn3b/3q2p1/bQ2b1PB/q1N3Nk w - - 0 1 illegal: No proof kernel
2N3q1/q2k2pK/1Qq1r3/NQ1b1pr1/5P1B/nq1r3b/N2Rp2b/R3Nn1R w - - 0 1 legal: proof: e4 h5 b4 d5 g4 dxe4 c3 hxg4 b5 c5 b6 c4 Bd3 axb6 Bc2 b5 Bb3 cxb3 Qe2 b4 Qf3 Rh6 Qd1 Rh8 Ke2 e5 Ke3 b5 a4 b2 d4 b3 h4 g3 a5 b4 f3 g2 d5 Na6 h5 Kd7 d6 Nf6 h6 Nd5+ Kd2 e3+ Kd3 e2 Ke4 e1R+ Kf5 e4 h7 e3 c4 Nac7 c5 Nb5 a6 Na3 Nc3 b1Q+ Qc2 b2 a7 b3 Qd3 Qc2 Na2 b1B f4 b2 Nf3 g1Q Bd2 e2 Ba5 Rd1 Be1 f6 Bg3 Ne3+ Kg6 Nf1 Ne1 Rb8 a8Q Rb5 Qa5 Qe3 Nc1 Ba2 Qb6 b1Q Bh4 Bd5 Na2 Rg8 h8R Qbb3 Kh7 Qcc1 Qe4 Rd3 Qb4 Be7 Qa4 Re8 Rg8 Bf8 Qc4 Re6 c6+ Ke8 c7 Kd7 Qa4 Qc6 Qaa6 Ra5 Qbb5 Qa7 Qab6 Bb7 c8N Bg2 Qc4 Rg5 Qcb5 f5 Rh8 Be7 Re8 Bf6 Rf8 Bd4 Rf6 Qf8 Rf7+ Ke8 Rd7 Bh3 Rd8+ Kf7 d7 Bg1 Re8 Bh2 d8N+ Kf6 Re7 Ba8 Nb7 Qd8 Rd7 Qf8 Rd4 Kf7 Qc7+ Ke8 Qcb6 Qf7 Na5 Bb7 Nd6+ Kd7 Nc8+ Rd6 Rc4 Re6 Qa4 Qcb5 Rc2 Bd5 Rd2 Qc6 Qab5 Qg8+
rnR1bb1q/2nnQb2/1B3N2/1kN2R1N/p6p/3rp2b/1KQ1P1R1/Nr5q w - - 0 1 legal: proof: g4 b5 d4 g5 a4 bxa4 h4 gxh4 d5 f5 g5 c6 Bh3 cxd5 Bg4 fxg4 Bd2 d4 Bf4 Kf7 Bc1 Ke8 Kd2 h5 f4 a5 c4 e5 Kc2 d5 b4 Kd7 b5 d3+ Kc3 d4+ Kb2 a3+ Kb3 a2 f5 e4 c5 e3 f6 g3 b6 Kc6 g6 d2 g7 d3 f7 a4+ Kb2 h3 b7 h2 Na3 g2 Nc2 h4 Nh3 g1Q Nf4 Kb5 c6 Bh3 c7 Nf6 c8R Nfd7 g8N Qe1 Rf1 h1B Rg1 Bc6 Rg2 Qh1 Nf6 Rh5 Rb1 Rd5 Na1 Qe8 Qc2 d1B N4h5 d2 Ne4 Rd3 Nc5 Bh6 f8Q Bg7+ Qc3 Bb3 Qe7 Bf8 Qc2 d1R Bd2 Bf7 Ba5 Re1 Nab3 a1N Bb6 Rg1 Rf1 Qd8 Na5 Nb3 Rf5 Nd4 Nab3 Ne6 Na1 Nc7 Qe8 Nba6 b8N Qf6+ Qe5 Qh8 Qg7 Bcd5 Qe5 Be8 Qg7 Bdf7 Qf6 Ne5 Nbd7 Nb8 Qe7 Re1 Ndf6 Ned7 Qd8 Rf1 Qe7 Rb1+
2b1qbRb/1r1q3p/3p2Nq/1R2N1k1/1rBr1nn1/2NQp3/2NRP2q/1Q4K1 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 gxh4 d4 axb4 g5 c5 g6 cxd4 Be3 f6 Bg5 fxg5 c4 e5 f4 Ke7 Kf2 Kf6 a4 b5 c5 g4 f5 e4 c6 g3+ Kg2 b3 c7 b4 a5 d3 a6 d2 a7 b2 g7 b3 Qc1 d1Q Qf4 Ne7 g8R Nbc6 Ra2 Ng6 Qe3 Qe8 Qf2 Rb8 a8Q Rb7 Qe1 Kg5 f6 Ne5 f7 Ng4 Na3 b1Q Rd2 b2 Qa6 Qbc1 Qd3 b1R Nc2 R1b4 Rh2 h3+ Kh1 Qb2 Bg2 Qg7 Bf3 e3 Bd5 Nf4 Bc4 Qg6 Rf2 h2 Qf1 Kh4 Rg2 Qh6 Nf3+ Kh5 Ne5 Kh4 Rg6 Rg8 Rc6 Kg5 Rc5 Rg6 Rg1 Rd6 Rb5 Rd4 Rg2 d6 Qg1 Qa1 Qb1 Qa4 Rg1 Nh5 Kg2 h1Q+ Kf1 Qh2 Rg2 Bf5 c8N Nf4 Ne7 Bc8 Nd5 Qd7 Nc3 Qe8 Rd5 Qab5 Rg1 Qbd7 Rb5 g2+ Ke1 Bg7 f8N Bh8 Nfg6 Bg7 Rh1 g1B Kf1 Bf2 Rg1 Bh8 Rg2 Bh4 Rf2 Nh5 Rf8 Nf4 Rg8 Kh5 Ra5 Be7 Rc5 Kg5 Rb5 Q2h4 Kg1 Bf8 Na1 Q4h5 Nc2 Qh2+
r1n1R3/1qRr1p2/b1Qn4/2qB3p/2bpNk2/bq1P4/1QNq1N2/2N1KnQ1 w - - 0 1 illegal: No possible last move, all moves rejected
2K2R2/b1N1B1n1/N2r3q/4NR2/bp1bQq1R/1Pp2r1p/kqn1R1b1/6Qr w - - 0 1 illegal: No extended proof kernel
1bNk1b2/3qNr2/2Q1nr1R/pK2QNp1/PN1rb1pn/1n6/Q2qrRB1/8 w - - 0 1 legal: proof: g4 d5 e4 dxe4 c4 h5 b3 hxg4 c5 f5 c6 f4 Ba3 bxc6 Bb2 c5 Bf6 c4 Bh4 Na6 Bg3 fxg3 Qf3 Nb8 Qe2 Qd3 Qd1 Qd8 Ke2 c5 f4 g5 d4 a5 a4 e5 h4 e3 b4 c3 Kd3 e4+ Kc4 g2 d5 c2 b5 c1B f5 e2 h5 e1Q h6 e3 d6 e2 b6 Be6+ Kb5 c4 b7 c3 h7 c2 d7+ Ke7 f6+ Kf7 Rh6 Bf4 Qd2 c1N Ra2 Ra7 Nc3 Nb3 Nd5 Nc6 b8Q Bf5 Nb4 Be4 Qb7 Nge7 Nf3 g1R Nh4 Ng6 Nf5 Bb8 Bg2 Nh4 Qc7 Qe7 d8N+ Ke8 Nb7 Nd8 Qc6+ Qd7 Rc2 Rg8 h8Q Ne6 Nbd6+ Kd8 f7 Rg6 Qe5 Rf6 Nc8 Rc7 Qdd5 Qd2 Qc4 e1R Rb2 Qf4 Rf2 Re2 Qc2 Rd1 Qa2 Be7 f8N Rd4 Ng6 Bf8 Nge7 Qd2 Qa3 Qd6 Qa2 Rd7 Ned5 Rdf7 Nde7 Qd7
qR2r2r/NQ1B2pR/q3nB1R/nqb2bP1/1pB3n1/1QR4K/5kp1/1r3q2 w - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 d4 axb4 Nc3 c5 Ne4 cxd4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 Ke7 Kg2 Kd6 h4 Ke5 a4 Ke4 c4 d5 c5 f5 e3 b5 c6 d3 a5 g3 c7 d2 a6 b3 h5 b4 h6 d4 a7 f3+ Kh3 f2 h7 g2 Qe2 d1Q Qc2+ d3 Rh2 f4+ Kh4 b2 Ne2 Kf3 e4 b1R e5 d2 e6 Bc5 e7 Nh6 e8R Nc6 Bb2 Nf7 Bf6 Bf5 c8B Na5 Nc3 Qe2 Qb3 d1N Ra3 Qa6 Bd7 Ne3 Bc4 f1Q Nb5 Kf2 Re6 Rb8 a8Q f3 Qb7 Ng4 Kh3 Qg8 Rb6 Re8 Na7 Nd8 Rc6 Qd5 Rc8 Ne6 Rb8 Ke1 Rh1 f2 Rh2 Qe2 Rh1+ f1Q Rh2 Rhg8 h8R Kf2 Rh7 Qee4 Qa4 Rh8 Rc3 Qdc6 Qb3 Qcb5 Qb6 Qfd3+ Kh4 Qa8 Qb7 Qe2 Rhh3 Kf1 Kg3 Ke1 R3h6 Qf1 Kh3 Kf2
1bN1Q3/p2QqB2/3nn2K/2b2QpR/1n2b1pQ/6q1/r1k3PB/2qNr1Nb w - - 0 1 illegal: No proof kernel
1bN5/1bR2nrn/5p2/4N1b1/QQ1q1Pq1/QQn1R2p/p1Kqr2B/2n2N1k w - - 0 1 illegal: No possible last move, all moves rejected
1N1N1nqQ/2br3R/p2r1pB1/2pq1nN1/Prb3q1/K2k4/R1R5/R2q1b1Q w - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 b5 b3 bxc4 Bb2 h6 Bf6 gxf4 g5 Nd7 g6 Nb8 Bg5 hxg5 h4 Kd7 d4 Kd6 Kd2 Kd5 Kc1 c5 Kb2 e5 a4 a6 h5 c3+ Ka2 e3 b4 Ke4 h6 c2 b5 c1R b6 g4 h7 g3 d5 f6 d6 e2 g7 e1Q b7 f3 d7 f2 Bb5 f1B Rh5 g2 Rh1 Bd6 Ne2 g1Q Nf4 Ra7 Rh6 Bc7 Qh5 Qe2+ Kb3 Rc4 Qh2 Ne7 g8R Nf5 Ka3 Rb4 Ne6 Qeg4 Qh1+ Ke3 Bd3 e4 Rgg6 Qg8 d8Q Q1g2 Nd2 Nd7 b8N Nf8 Rh2 Bb7 Qc8 Bd5 Nd8 Bc4 Nf3 Qd2 Bc2 Qdd5 Ng5 Kd4 Bb1 e3 Rha2 e2 Rh6 e1Q Rhh2 Qed1 Bd3 Ne3 Bg6 Nf5 Rhc2 Kd3 Rcb2 Qge6 Rc2 Rg8 h8R Rg7 Rh6 Qg8 Rh4 Rd7 Rh7 Rd6 Qd7 Ba5 Qg7 Rad7 Qh8 Bc7
1Bq1RQ2/1npb1q2/Q2nQ1pN/1n1B1R1K/2Q1r3/5rP1/nr1bBp2/1k1q4 w - - 0 1 illegal: No possible last move, all moves rejected
1qrQ1K2/3n2Rp/1Qb1q1NR/1rpq1Rpn/3r1B1b/4n2R/6P1/1N2Nkq1 w - - 0 1 illegal: No proof kernel
kb5Q/4R2b/r1pqqR1p/1pr1QNR1/B3n1b1/1q2BR2/1P2n1n1/Kn5Q w - - 0 1 illegal: No proof kernel
K2k1bR1/p3bB2/b1bpqQq1/R1r5/P1NB1p2/1QQ1B3/3r2r1/1n2Bn1n w - - 0 1 legal: proof: f4 b5 g4 g5 c4 gxf4 d4 bxc4 Nc3 e5 Ne4 exd4 g5 h6 Nf2 h5 Ng4 hxg4 Kd2 f5 b4 c5 e4 d3 Kc3 f3 h4 d2 g6 f2 h5 g3 e5 g2 h6 Qb6 g7 Ba6 h7 Ne7 g8Q Kd8 e6 Nbc6 b5 Nb4 Qg7 Rg8 h8B Nc2 Qf6 Na3 Nf3 g1Q Ne5 Qg6 Qb3 d1B Be3 Bf3 Rg1 Bc6 Bg2 f1N Bd5 Qb7 b6 Qc8 b7 f4 b8B Rg7 Bd6 Nb1+ Kb2 Rg8 a3 c3+ Ka2 c4 Bb4 c2 Be1 c3 Nc4 Kc7 Rg2 Nf5 e7 c1R e8Q c2 Bf7 Rd1 Qee5+ d6 Rg3 c1B Qec3 Qe6 Rg5 Rd8 a4 N5g3 Ra5 Bb2 Bg7 Nbd2 Rc1 Ba1 Ka3 Nb1+ Kb4 Nh1 Rc2 Be7 Rg2 Rd2 Rgg5 Rc8 Bh8 Bf3 Rg1 Kd8 Rgg5 Bab7 Kb5 Bbc6+ Ka6 Be2 Qc1 Be5 Qcc3 Bd3 Qf5 Bg7 Qff6 Bf8 Bg7 Bd7 Kb7 Rc5 Ka8 Be8 Ne5 Ba6 Nc4 Rh8 Rg2 Rh2 Rg5 Rhg2 Bh8 Qh6 Rg8 Bd7 Qg5 Qh5 Bhd4 Qhg6 Qf6 Bc6+
nQ6/bR1q1N1b/p5Rr/2NK4/1Q1RQ1np/P3pqBQ/1r1qk3/n1bq4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxe4 h5 bxc4 h6 f5 Be2 f4 Qc2 f3 Kd1 gxh6 Qb3 fxe2+ Kc2 h5 Kc3 h4 Qd1 Bb7 Kc2 Bc8 f4 Kf7 Kc3 Ke6 b4 Kd5 g4 e1N d4 h5 b5 c5 f5 e5 b6 e3 f6 Ke4 a3 a6 g5 h3 b7 h4 d5 e2 d6 h2 f7 Rh6 g6 Nf6 g7 Bf5 g8R Qd7 Ra2 Ng4 Bg5 Bh7 Qd2 Nc2 Bf4 e1Q Rb2 Qd1 Bg3 Na1 Qc2+ Ke3 Nd2 e4 Nh3 Ke2 Ng5 e3 Qe4 Ra7 Rf1 h1Q Rf4 Qf3 Rg6 Be7 f8Q Bd8 Rb4 Bb6 Qc8 Ra8 Nf7 Ba7 Kb2 c3+ Ka2 c2 Nb3 c4 Nc5 Qe8 d7 c1Q d8Q c3 Qde7 Nd7 b8Q c2 Rb7 Qcd2 Qb4 Qd8 Rd4 Nb6 Qe4 Qe8 Qcf5 Qd7 Kb2 Nf2 Qh3 Ng4 Qd6 Re8 Qb8 Na8 Ka2 Re6 Kb2 Rb6 Ka2 Q2e1 Kb2 Qef2 Kc3 c1B Kc4 Qfe1 Rdd6 Qed2 Rd4 Qe7 Kd5 Qe8 Qa4 Rb2 Qb4 Qd7+
3B3R/KBQ2Rpb/q1B1q1r1/nrkNbr2/3n2q1/1B2pq2/Q1p3P1/4Q2b w - - 0 1 illegal: No possible last move
R6n/p1rQK1pB/rk5B/1bq2Q1q/1qQ3bN/npn3n1/1b2Q1P1/N5N1 w - - 0 1 illegal: No possible last move, all moves rejected
1Qb5/1qpNQQrp/1Rq2prk/1q3Q2/1rB4N/B1n1N3/bnP5/K1bq4 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 e4 e5 h4 exf4 e5 g5 Ra3 gxh4 Re3 Kd7 Re2 Ke8 Re4 dxe4 d4 b5 Kd2 e3+ Kd3 b3 Kc3 b2 g4 h3 d5 h2 g5 f3 e6 f2 e7 e2 g6 e1R a5 b4+ Kb3 f6 Ka2 b3+ Ka3 Na6 g7 Kf7 d6 Kg6 d7 Nb4 a6 Rb8 a7 Nd3 a8N Rb4 Nc3 b1Q Nb6 Nb2 Bc4 f1Q Ncd5 Re6 Ne3 Kh6 e8Q Ne7 g8Q Nd5 Qe2 Re7 Qgf7 Nc3 Qf3 Rg8 Qf5 Rg6 Nf3 Bg7 Rg1 h1Q Nh4 Qc6 Qeg8 Qe8 d8Q Qd1 Nd7 Qb7 Rg4 Qb5 Re4 Bf8 Re6 Bg7 Nc5 Qec6 Nd7 Qbb7 Qff8 Rf7 Qfe7 Bf8 Qde8 Rfg7 Q7f7 Bd6 Qee7 Bf4 Qh8 Qdf3 Qhe8 Qcb5 Rb6 Qfc6 Bd2 Qd1 Bc1 Nd3 Q8d8 b2 Qdf8 b1B Bb2 Ba2 Bc1 Ne5 Qfd8 Bb3 Kb2 Nd3+ Ka1 Ba2 Qde8 Qdf3 Ba3 Nb2 Nf1 Bc1 Ne3 Qd1 Q8d8 Qa7 Qdg8 Bb7 Qa8 Bc8 Qb8 Qab7
3RN1Q1/5rp1/Rbb2p2/1pbr2Pb/1K1b1k1q/5nN1/1nQR3N/1Bq1b1R1 w - - 0 1 illegal: No possible last move, all moves rejected
1b4n1/BBk1nq2/7n/1p2Kpn1/1pBbRrR1/3b1P1n/RrQR4/b3N1Q1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Na3 d3 Nb5 hxg6 Bd2 g5 Nd4 exd4 Bc1 g4 Kd2 f5 a4 d5 c4 Kd7 h4 g5 e4 g3 h5 g2 f3 g4 h6 g3 c5 Nc6 h7 Qe8 e5 Bd6 a5 Nce7 c6+ Kc7 a6 Qf7 Nh3 g1B e6 g2 Ke1 d2+ Ke2 b5 Kd3 Bb7 Qe2 d1N a7 Nc3 Bh6 Ne4 Be3 Ng5 Rd1 Bgh2 Qf2 g1B Qc2 Bde5 Nf2 Rd8 a8R Bg7 Kd2 d3 Ra2 Ba1 Ba7 d4 Be2 Bg3 Rh4 B3h2 Rg4 Bg3 Kc1 d2+ Kb1 Rd5 Nd3 Be3 Ne1 d3 Bf1 Rd4 Be2 Rf4 Bf1 Kc8 c7 Be4 Be2 Kb7 Bf1 Bc5 c8B+ Kc7 Bb7 Bh2 Qb2 Bd4 Qc2+ Nc6 e7 Bg3 Rc1 d1N e8R d2 Bc4 Bd3 Re4 Nf2 Rd1 Nfh3 Ra5 Nh6 Ra2 Re8 h8Q Ne7 Qg7 Neg8 Rc1 d1N Qg6 Nb2 Rd1 Na4 Rd2 Nb6 Qg7 Nc8 Kc1 Bc5 Qd4 Rd8 Qg1 Nce7 Kd1 Bf1 Kc1 Rd3 Kb1 Rb3+ Kc1 Rb2 Kd1 Bg2 Ke2 Bd4 Kd3 Bf1+ Rde2 Be5 Ke3 Bh2 Reg2 Bd3 Rd2 Bd6 Kd4 Bc5+ Ke5 Bf2 Bd4 Be3 Bc3 Ba7 Bd4 Bg3 Be3 Bf2 Bc5 Bb8 Ba7 Bd4+
r2n4/2pp2bR/B4K2/R1P2nB1/2Brpq1b/r3Qb2/r2b1BRN/3Q1r1k w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f5 Nc3 e6 e5 exd5 Ne4 fxe4 Qe2 d4 Qd3 Rh4 Qd1 Rh8 Kd2 Ke7 a4 Ke6 h4 Kf5 f4 g5 c4 b5 h5 b3 a5 b4 h6 d3 Ke3 g3 Kd4 b2 h7 b1R e6 d2 a6 g4 a7 g2 e7 b3 e8B g3 c5 b2 Ne2 Kg4 Ke5 Kf3 f5 g1B f6 g2 f7 Be3 Rh6 g1B Rh5 Qf6+ Kd5 Ba6 Ra5 Bg7 f8B Bgf2 Rh2 Bh4 Ng3+ Be2 Bf7 Ra1 Bd6 b1R Rg2 Nc6 Be7 Qf4 Bg5 Nh6 Bb2 Rhg8 h8R Rgb8 Bd4 Nd8 Rh7 Ra2 Be6 R8b3 Bg8 Bg1 Bf2 Nf5 Bf7 Rba3 Be6 Rab8 a8Q Rba1 Qa6 Ra8 Qd6 Bh2 Qc1 Bd1 Ba6 Be2 Nf1 d1R+ Qd2 Rac1 Bg8 Rc4 Qh6 Rb1 Qd1 B2g3 Bd4 Be1 Bf2 Bd2 Rh2 Kg4 Rg2+ Kh3 Nh2 Bf3 Bf6 Qe3 Ke5 Rd4 Bgc4 Qg5 Qe2 Qg4 Qhe3 Rf1 Qe1 Bf8 Bg5 Qf4+ Kf6 Bh6 Qd1 Bf8 Rg4 Bh6 Bg3 Kg2 Bf2+ Kh1 Rg2 Bg7+
3K4/RNqp4/p4QQB/nN1Nr1n1/1brR3b/P2QQ1n1/k1p1nbb1/7b w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Rb1 f3 Bg2 fxg2 Ra1 hxg6 Nb1 g5 Qb3 g4 Qc2 Nf6 Qd1 Ng8 Kd2 Ke7 e4 Kd6 f4 Kc5 h4 Kb4 h5 g5 b3 c5 f5 c3+ Kd3 g3 h6 g4 h7 c2 f6 Qc7 e5 c4+ Ke4 c3 Kd5 d3 e6 d2 f7 Nh6 e7 Nf5 e8N Nc6 Na3 Na5 Qf1 d1B Ne2 g1B Bh6 c1B Nb5 g2 Nf4 c2 Ned6 g3 Rh4 Bf2 Nb7 g1N Qd3 g2 Qe3 Bd6 f8Q Ng3 Qf7 Nf3 Qg6 Re8 h8Q g1N Qhf6 N1e2 Rg4 Be7 Qed3 Ba3 Rh4 Qc3 Qe3 Bd8 Kd6 Re5 Qgd3 Ng5 Qfg6 Bb6 Rg4 Bc5+ Kc7 Bc1 Kd8 Bb2 N5d6 Ka3 Nd5 Bb4 Rd4 Bc1 Nb5+ Kb2 a3 a6 Rb1+ Ka2 Qf6 Ng1 Qdg6 Bf3 Qgd3 Bh1 Qfg6 Bd6 b4 N1e2 Rb3 Qc5 Rc3 Qa7 Rc7 Bc5 N7d6 Qb8 Ra7 Bd2 Nb7 Bde1 N5d6 Bg2 b5 Bcb4 b6 Bh1 Nb5 Qd6 Nc5 Rb8 b7 Ra8 b8Q Bb7 Ne7 Bbg2 Nd5 Qc6 Qc8 Rb8 Qf6 Rb7 Qdg6 Rc7 Nb7 Qb6 Qed3 Rc4+ Qc7 Qc6 Qb6 Qc5 Qbe6 Qc7+ Ke8 Re3 N7d6 Nf5 Qd8 Bg3 Nb7 Bh4 Qdf6 Bef2 Qee5 Nfg3 Qee7 Qc5 Kd8 Qc6 Qee5 Qc5 Qef4 Re5 Qfe3 Qc7+
BN2rk2/2b2bn1/4b1pQ/R1Rnp1Q1/2r2N2/3rPq1n/K2np2R/NN2r3 w - - 0 1 illegal: No extended proof kernel
1r1B3Q/RBN3pb/1B4nb/B3R3/1Knp2QQ/r3bpn1/1q1P3r/nk5r w - - 0 1 illegal: No proof kernel
bk1N1rQ1/3b1Q2/p1Rnnb2/r1Q3N1/Bn1q1p2/1K1q1P2/3R1bp1/Q2n1N2 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 cxd4 g5 bxa4 g6 e5 Bg5 e4 Bd2 e3 Bh3 hxg6 Kf1 exd2 Kg2 g5 Kg3 g4 Bf1 Bc5 Kg2 Bf8 c4 d5 e4 Kd7 h4 Kc7 b4 f5 c5 g5 h5 g3 Kf3 f4 Ke2 g4 Kd3 g2 Kc2 d3+ Kc3 a3 c6 d4+ Kb3 g3 h6 a2 e5 Be7 h7 Nd7 b5 Kb8 b6 Nf8 b7 Bd7 e6 Bf6 e7 Ne6 e8Q Nh6 Qf7 Nf5 Nh3 g1B Ng5 g2 Rh6 Rf8 h8N Nd6 f3 Bf2 Qe1 d1N Nd2 Ne3 Rc1 a1Q Rc2 Nd5 Rb2 Qa6 Qa1 Nb4 Be2 Qdb6 Nf1 d2 Bb5 d1N Rd2 d3 Ba4 Qd4 Qe7 Qab6 Nhf7 Qb5 Nd8 Qf5 Qf7 Qg6 Rb2 d2 Rc2 Ne3 Rb2 d1B+ Rc2 Be2 Rd2 Qf5 Rg6 Bd3 Rh6 Nd1 Rg6 a6 Rh6 Be4 c7+ Ka7 c8Q Rb8 Qc4 Rc8 Rg6 Rc5 Qcc3 Ra5 Rh6 Kb6 b8Q+ Bb7 Qbc8 Ka7 Q8c5+ Ka8 Q3c4 Kb8 Qg8 Ba8 Q4d5 Nc7 Qdf7 Qfd3+ Qac3 Nc4 Nge6 Bh8 Ng5 Bg7 Rc6 Nd6 Nh3 Ne6 Ng5 Qb5 Qb2 Bf6 Qa1 Qbd3+
1Nr2nNn/4QN1b/1p1b4/5R2/Q1pqbrb1/BpP1r2K/3rqBB1/3k1N2 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 dxe4 g4 axb4 f4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 Kf2 Kd7 Kg2 Kc6 h4 Kd5 d4 e5 c3 c5 g6 f5 h5 e3 a5 Ke4 h6 b6 a6 f3+ Kg3 b3 g7 e2 h7 e1Q+ Kh2 f2 d5 c4 a7 f4 d6 g3+ Kg2 Nh6 g8Q Bg4 d7 Bd6 Be2 Nf7 Rh4 f1B+ Kh1 g2+ Kh2 f3 Qf8 f2 Bb2 Ke3 Bf3 Qe2 Qe7 Rf8 Nd2 Nh8 Nh3 g1R Bg2 e4+ Nf4 Bf3 Kh3 Rf7 Nh5 Rf4 Nf6 Rh1+ Kg3 Rh2 Ba3 Kd3 Qa1 Kc2 Rh3 e3 Rh5 Be4 Qa2+ Kd1 Rf5 Bf3 Ng8 Be4 Bh1 Bfg2 Nf1 Bgf3 Bg2 Bh5 Qf6 Bhf3 Qe5 Qf6 d8N Nd7 Qe7 Rc8 a8N Nf8 Nf7 Qe5 Nc7 Qd4 Nd2 f1B Na6 Qed3 Nb8 e2 Bb4 e1R Qa4 Re3 Ba3 B1e2 Nf1 Qc2 Bh1 Rf2 Bg2 B2d3 Kh2 Qe2 Kh3 Nhg6 h8B Bc2 Bg7 Nh8 Rg5 Bh7 Rf5 Bce4 Be5 Qc2 Bf6 Rd2 Bh4 Qcd3 Be1 Qe2 Bf2 Bg4+
2b2b2/N1p1p1b1/4rR2/kBK1RbQ1/1N1pP3/2Q3NN/1rqrq1rn/1R4n1 w - - 0 1 illegal: No proof kernel
K2nbB2/bb2p2R/2kpNp2/q1p2PQ1/6rR/1rr3RQ/2N1n1RQ/2r2n2 w - - 0 1 illegal: No proof kernel
1B6/b1p3r1/nBPNQ1Q1/Q3p2Q/b1BpRb2/1n2r1r1/p1q1N1b1/1k1nK3 w - - 0 1 legal: proof: b4 e5 e4 b5 a4 bxa4 h4 g5 d4 gxh4 Ra3 f6 Re3 exd4 e5 Be7 e6 Bf8 Re5 fxe5 g4 Ke7 c4 Kd6 f4 h5 g5 a5 e7 h3 e8Q d3 c5+ Kd5 b5 Kc4 g6 d5 f5 h4 b6 a3 g7 h2 b7 a2 f6 a1B f7 a4 Bg5 a3 Bg2 d2+ Kf1 Kd3 Bf4 a2 Qe1 Kc2 Qe2 h3 Qf2 Na6 b8B Bd7 Bg3 Ne7 g8Q Nc6 Ba7 Nd4 Bh4 Ba4 c6 Rh7 Qe2 Nb3 Bb8 Bh6 f8Q Rg7 Bf2 Bd4 Qge6 Ba7 Nc3 Bf4 Q2h5 d1N Ne4 Kb1 Bb6 d4 Qfe7 Qd6 Ke1 Qc5 Ne2 Qc2 Qa3 Rg3 Rg1 h1R Bf1 h2 Nd6 Rg7 Rg5 Rg1 Q8g6 h1B Rg4 Rg3 Qb4 Bg2 Qa5 Be3 Re4 Bf4 Qb4 Re3 Qa5 Rg8 Qgf5 Rg5 Qfg6 Rc3 Nc1 Rf3 Bc4 Re3+ Ne2 Rgg3 Bc5 Bb6 Ba7 Rg8 Bb8 Ba7 Bb6 Rg7
5qr1/3Qpbr1/2Q2pbN/Bnn3pn/1Q2p1r1/b3N1P1/1K1RQ3/NB2b1k1 w - - 0 1 illegal: No possible last move
2br2Q1/2r1rpnn/p2p1Q2/rkB1RP1b/N2Q2nb/7B/4qpK1/N1N1Q3 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 f4 b5 h4 gxh4 f5 bxa4 Ra3 e6 Rf3 e5 Rf4 exf4 Kf2 h5 c4 f3 g4 a3 e4 d6 e5 Kd7 b5 a2 g5 a1R c5 d3 b6 Kc6 b7 d2 e6 a6 g6 h3 g7 h2 e7 h4 e8N h3 Ba3 Nd7 b8Q Ne5 Nc3 Qe7 Nc7 Ra7 Ne6 Nf6 g8Q Rc7 Qbb1 Nh7 Na4 Ng4+ Kg3 f2 Ne2 Bh6 Nc1 Bg5 Qb2 Qe8 Qe1 d1B Qd4 Bf3 Bg2 Kb5 c6 Ra2 Rg1 h1R Nec5 h2 Bh3 Qe2 N5b3 Ra1 Qg6 Rd8 Bc5 Ra3 Qgf6 Bh4+ Kf4 Re7 c7 Ra2 Rg3 Rf1 Rg1 h1N Na1 Ng3 Rh1 Nh6 Rg1 Bh5 Rh1 Ng4 Rg1 Qc4 Kf3 Qe2+ Kg2 Ra3 Nb2 Ra5 Na4 Ne4 Rh1 Neg5 Rg1 Ne6 Rh1 Bd7 c8Q Ng7 Rg1 Rh8 Qg8 Bc8 Qed2 Rd1 Re1 Rc7 Q2c3 Rd3 Qd2 Re3 Qd1 Ree7 Q1d2 Qd3 Re5 Qe2 Qe1 Ne8 Qgg6 Ng7 Qgg5 Rd8 Qgg6 Ne6 Qg8 Ng7
qQKb3k/4QbnB/N2B1Rrb/B3prR1/r2B2pp/qp4P1/1b2Q3/5n2 w - - 0 1 illegal: No proof kernel
1R1nBrnb/1RBK1n2/2BQp1Qn/1N3b1p/pQ1p1B2/q2P3k/q7/3r1b2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 b5 gxh4 Nc3 f5 Nd5 fxe4 Nb4 cxb4 Ke2 Kf7 Ke3 Ke6 Kf4 a5 c4 h5 g4 d5 c5 e3 c6 e2 c7 e1N g5 d4 g6 b3 b6 b2 b7 b1B g7 a3 Qa4 a2 Bg2 h3 Qb4 h2 Bc6 Bd3 Rb1 a1Q Ne2 Qa3 Nc3 Bf1 d3 Nf3 Nb5 Ng5 f3 Bd7 c8B Nf7 Ke4 Kf6 Kd5 Kf5 f4 Kg4 f5 Kh3 f6 Bf5+ B8d7 a4 Rg1 h1N Bf4 Nf2 Qd6 Rh6 Be8 Rg6 Rg2 Ng4 Rgb2 N4h6 Rb3 Nh8 f7 e6+ Ke5 Be7 f8Q Rg1 Qb4 Bh4 Qfd6 Qg5 R3b2 Qg2 Rb3 Qga2 R3b2 Na6 b8B Nc5 Bc7 Nb7 Rb3 Nd8 R1b2 Nf6 g8Q Rh1 Qg6 Nfg8 Qf8 Rb8 Kd6 Bf6 Kd7 Nh8f7 Qfd6 Bh8 Qc4 Qa1 Na7 Be2 Qcc5 Rc8 Rb8 Q1a2 R2b7 Rd1 Nb5 Bf1 Qc4 Qc3 Qcb4 Qca3 Be4 Nc6 Bf3 Ng5 Bf7 Rf8 Be8 Nd8 Bc6 Ngf7
3b2b1/1kN1q3/1r1QB2K/1rQ2p2/n1rrRq2/npn2B2/pP4Rp/3Q2BQ w - - 0 1 illegal: No proof kernel
Rn2KRb1/b2B4/bBN1nQ1p/1q3r1k/1p4p1/rr1Bp2B/1Pr5/Qq5R w - - 0 1 illegal: No proof kernel
2n2q1r/R1R1R3/1b1ppkp1/3r4/BN4b1/1K1qp1QQ/n1rq2PQ/qQB5 w - - 0 1 illegal: No proof kernel
k2rbNBB/B1qQ1q1R/p7/1p2Qp1K/4np2/B1rN4/Pn6/n1nQ1bb1 w - - 0 1 illegal: No possible last move, all moves rejected
n7/r1B5/kp3pN1/Nn1Q3n/n1rQnpqp/1P3RR1/bN1nR3/bN1K4 w - - 0 1 illegal: No extended proof kernel
BrQ1b1n1/Q1B3pr/BN4R1/b1p3pr/1b1np3/B2RR1b1/2q1P3/r2K1k2 w - - 0 1 illegal: No possible last move
4QKR1/1R1rp2N/b1k1PppB/2r2qb1/5qpr/Q1Bp3n/Bn5R/3n1R2 w - - 0 1 illegal: No proof kernel
1rn2rQ1/p1NQNKpp/5Q2/bq4p1/q1Rn1Bb1/1n1RR1P1/1pQ5/6kb w - - 0 1 illegal: No proof kernel
7Q/1Kp1p1pr/1b1NRQ2/pqpn4/n1BNPq2/1b2nQBQ/4B3/kr2q3 w - - 0 1 illegal: Other
Bn1B4/1KrQ4/Rnp2pQ1/5qrN/1p1pB2r/2B3p1/N3QbPk/4rb1n w - - 0 1 illegal: No proof kernel
1n2b2b/1B2Br1Q/1k2rRNp/2bb1NQ1/QN1r2p1/3Nnq2/2p1ppP1/2K5 w - - 0 1 illegal: No proof kernel
2k4b/1n1rn1R1/qR2bpQ1/4B1Nr/n1p2B1p/3pr1np/BQPB4/3QK3 w - - 0 1 illegal: No proof kernel
k4b2/qppN1Qn1/p4Bp1/nQR3Q1/3r4/rNR1N1Q1/rKPp4/1b1b1r2 w - - 0 1 illegal: No proof kernel
B3qB2/1PbR4/Bkq1b3/1N2r1n1/3rbn1B/BN1bK2q/NR6/3q2r1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 Qc2 d5 cxd5 b5 Qc5 bxa4 Qxa5 a3 b5 Bf5 Qa6 Bg4 Qc8 Bxc8 Kf2 Kd7 e4 h5 d4 c5 g4 Kc7 e5 f5 e6 h3 g5 c4 g6 h4 d6+ Kb6 e7 a2 e8B c3 d5 f3 d7 h2 g7 h3 d6 c2 Bd3 f4 Beg6 Ne7 g8N Ra5 Bb2 c1R Na3 Rh4 Nf6 Na6 Ng8 Nd5 Nf6 Nc5 Bge4 Qe8 Rb1 a1Q Ne2 Rg1 Nd4 Ne6 Nb3 Ng5 Bc1 Be7 Rb2 Bd8 Bc4 Bc7 d8B Bf5 d7 Be6 Be7 Qb1 d8B Qc2+ Be2 Qcc6 Bf8 Rhg4 Bf1 Rh4 Ke1 f2+ Kd2 f3 Be2 Nf4 Ke3 f1B Nd5+ Kb7 b6 f2 Bb5 Bd3 Nb4 f1Q Na2 Qd1 Bc4 Re5 Nb5 Rg2 Rf1 h1B Rff2 h2 Rfd2 Rg1 Bf6 Bc2 Rd7 Bd3 B6e7 Bf3 Ba3 h1Q Bd2 Ka6 Be1 Qh3 Bf2 Rd5 Bg3 Rh5 Bh4 Rd4 Bed5 Qc5 Ba8 Qc6 b7 Kb6 Bf2 Bfe4+ Bg3 Nf3 Bh4 Rc5 Na7 Rh5 Ba6 Re5 Nb5 Ng5+
2kn4/1rpb1Qnn/B5K1/2R1Rq2/rR1rPNbr/RN2Rn2/8/b1R5 w - - 0 1 illegal: No possible last move
3B3b/1Rr1q2R/NKBr1b2/5P1r/n1p5/rB1B4/b2Npb2/k1r1BR2 w - - 0 1 legal: proof: b4 a5 h4 f5 e4 fxe4 c4 g5 a4 gxh4 b5 d5 b6 Nc6 Qb3 Nb4 Qxb4 axb4 a5 d4 c5 d3 c6 bxc6 a6 c5 Bxd3 c4 Be2 Bd7 Bf1 Bc8 Ke2 Kd7 Ke3 Ke6 g4 Ke5 b7 c5 b8R h5 d3 h3 a7 h4 g5 h2 g6 h3 g7 c3 f3 b3 Ra3 b2 Rbb3 c2 Rb6 Rh5 Rba6 Nf6 g8B Bg7 Nc3 b1R Nd5 Nd7 Rb3 Bh8 Rb8 Rb7 Ra2 Rc7 Bd2 c1B Nb4 Bb2 Kf2 Kd4 f4 e5 f5 e3+ Ke2 e4 Be1 Qe7 Bf7 Ba1 Rd2 Kc3 Rd1+ Kb2 d4 Bb7 Bg8 Bd5 Nf3 Ba2 Bb3 c4 d5 Nc5 d6 Rh6 d7 Rd6 d8B Bf6 Rg1 h1R Na6 h2 Rg7 Rg1 Rb6 h1R Rh7 Rh5 Nd2 Rgh1 Rc1 Bh8 Rb7 Rg1 Kd1 Rgh1 Bd3 Bf6 Nf3 e2+ Kd2 Rf1 Ke3 Bh8 Bh4 e1B Nd2 Bg3 Re1 Rh1 Rf1 Bf2+ Kf4 e3 Kf3 Bg1 Be1 e2 Kf4 Bf2 Kf3 Rb8 a8B Rg1 Rb5 Rbc8 Bc6 Ra8 Rb7 Ra7 Nb8 Ra3 Na6 Kc1 Kf4 Baf6 Kf3 Kb2 Kf4 Ne6+ Ke4 Ka1 Bb5 Rb6 Kd5 Nc5 Bc6 Rg6 Bbc2 Rb1 Bb3 Rc1 Be8 Rd7+ Kc6 Rc7+ Kb5 B6d4 Bc6 Rd6 Kb6 Bdg7 Nb1 Bf6 Nd2 Na4+
1q1Qn1q1/B4k2/BPpn1n2/1NR1pB2/KB2r2r/5B2/r6n/r3RnB1 w - - 0 1 legal: proof: h4 b5 a4 bxa4 c4 g5 e3 gxh4 Qf3 d5 Qd1 dxc4 f4 e5 d4 Bd6 d5 Be6 f5 Bc5 fxe6 Bd4 exd4 Qg5 Qf3 Qe7 Qd1 Qd8 Kd2 a5 Kc2 f5 g4 h5 b4 h3 g5 h4 g6 c3 e7 c6 g7 a3 Kb3 h2 b5 a2 d6 c2 b6 f4 d7+ Kf7 d5 h3 d6 a4+ Ka3 f3 Be3 c1R Ba6 f2 Kb4 f1N Qd3 a3 Nc3 Nf6 Ka4 Ne8 Nge2 Re1 Rc1 a1R Na2 Rh4+ Nd4 Qc8 d8B Nd7 Bc7 Ndf6 d7 Qb8 Bg1 Ree4 d8B Ra7 Nb4 a2 Rc5 Rb1 Nb5 Rb2 Qd4 a1Q+ Na2 Qc1 Bd6 Qg5 B8c7 Ra8 Rc4 Qg6 Bb4 Qh7 Rc5 Qg8 Qd8 Ra7 Bf2 Ra8 Rg1 h1N Bd4 Nh2 Re1 Ng3 Bg1 Nf5 Bd6 Qc8 Bb8 Nfd6 Ba7 Qb8 Bc8 Nhg4 Bf5 h2 Rc2 h1N Rc5 Qh8 g8B+ Kg7 Rc4 Nh2 Rc5 Ng3 Bc4 Qg8 Be2 Ngf1 Bf3 Nc7 e8B Kf8 Beg6+ Nce8 Bc8 Kg7 Bh7 Kf7 Ba6 Qh8 Ka3 Nc7 Bf5 Nde8 Nac3 Qg8 Bac8 Nd6 Bb7 Rf2 Kb3 Qc8 Bb8 Ra1 Na2 Nce8 Ba6 Rb2+ Ka4 Qb7 Ba7 Qa8 Bb7 Qb8 Ba6 Rbxa2+
5kr1/R2Pq3/2pn1p2/1RK3bb/4RR2/Bq2NRN1/2p1qB1b/3n1Nq1 w - - 0 1 legal: proof: c4 a5 f4 e5 a4 exf4 b4 b5 axb5 d5 b6 dxc4 b5 Bh3 Qb3 Bc8 g4 h5 g5 f6 g6 Kd7 Qb4 axb4 Bg2 Kd6 Bf3 Kd7 Bg4+ hxg4 Nc3 Ra3 Nb1 Re3 Nf3 Re7 Ng1 Rf7 gxf7 Bd6 Nf3 Bc5 Ng1 Bf8 Kf2 Ke7 d4 g5 h4 f3 Ke3 c6 d5 g3 Kd4 c3 e4 b3 h5 b2 d6+ Kd7 e5 c2 b7 f2 b6 f1Q h6 g2 h7 g4 Rh3 g3 Ne2 g1B+ Be3 g2 Bf2 Bh2 Kc5 g1Q Rf3 Bg3 Nd2 b1Q Ra7 Bh4 Ng3 Qe7 e6+ Kd8 Rf4 Qd3 Ndf1 Bg5 Rf3 Bfh6 f8B Ke8 Rf4 Qbb3 Rf3 Qc7 e7 Qe2 Rf4 Kf7 e8N Qce7 Nc7 Bg4 Nd5 Bh5 Re4 Bf4 Nde3 Be5 Rf4 Bg5 Re4 Nh6 Rf4 Qee6 d7 Rg8 h8R Nf5 Rf3 Nd6 Rh6 Bg6 Rh4 Bh5 Re4 Bef4 Kd4 Na6 b8R Nc7 b7 Be5+ Kc5 Ncb5 Rba8 Qe7 b8R Nc3 Rb5 Bef4 Raa4 Nd1 R8a7 Qd8 Be7 Be5 Ref4 Kg7 Rae4 Qf8 Bd8 Qe7 Ba5 Kf7 Bb4 Kf8 Ba3 Qh1 Ngf5 Kf7 Rg4 Bh2 N5g3 Kf8 Rgf4 Qg1
B1R2bb1/1Rrn1KB1/1B3b2/1n1QrB2/3b1Pq1/Nbr1k1B1/4Bq2/3rn3 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Nc3 fxe4 Nd5 b6 Nb4 axb4 a5 Na6 axb6 Nb8 Kd2 Kf7 c4 Kg6 f4 Kf5 b7 h5 b6 d5 c5 e5 c6 e3+ Kd3 e2 g3 e1B c7 b3 Qc2 b2 Be3 b1B Nf3 e4+ Ke2 h3 Qc6 d3+ Kd1 d2 Ke2 d1R Nd2 h2 Qc3 h4 Ra7 h3 Bc5 e3 Kf3 e2 Qd4 Na6 b8B Bf2 b7 e1B Qb2 d4 Be7 d3 Rg1 h1R Qc1 h2 Bh4 Qd4 Nc4 d2 Na3 Rh7 Qc4 Nf6 Be2 Be6 c8B Nd7 Be5 Nc7 b8B Nb5 Rb7 Ra5 Qd5 Qb6 Ba7 Bd4 Rg2 Rc1 Rg1 d1Q Rf1 Qc5 Bb6 Bec3 Re1 Re7 Rg1 Bf7 Bg7+ Re5 Rg2 Ra7 Rf2 Re1 Rg2 h1N g4+ Kg6 g5 Kf5 g6 Nf2 Bg3 Nd3 Rf2 Bb2 Rh2 Rc3 Rh8 Rh1 Bh6 Bg8 g7 Bh7 g8B Ba2 Bg7 Bb3 Rb8 Rc7 Rb7 Kg6 Kg4 Ne1 Be6 Rf1 Kh4 Rg1 Bg8 Kf5 Kh5 Ba1 Qf7+ Ke4+ Qf5+ Ke3 Bd5 Bg8 Kg6 Bh7+ Kf7 Bb2 Bf1 Qg4 Be2 Ng2 Qe6 Rd1 Bc6 Ne1 Qd5 Kd2 Ra7 Ke3 Ba8 Ba1 Rb7 Qc4 Bf3 Qf1 Be2 Qf2 Bh6 Nb8+ Kf6 Rcd3 Ba7 Bb4 Bb6 Re4+ Qe5 Bdc5 Be6 Nd7+ Kf7 Bb2 Qd5 Bf6 Ke8 Re5 Bg7 Rc3 Kf7 Bd4 Rc8 Bf8 Bf5 Bg8+
nnq4b/r2r3b/q1R3rk/n6B/Rq1b2qR/1p3P2/1R2N2R/1N2KN1B w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 b4 g5 b5 g4 b6 g3 Be2 axb6 Bc4 b5 Bf1 b4 f3 h6 Qe2 Ra4 Qf2 gxf2+ Kd1 Nf6 g4 Ra8 g5 Bg7 g6 Bf8 Bb2 Ng8 Bf6 Ra6 Bh4 Ra8 Bg5 hxg5 d4 e5 h4 c5 a4 b5 g7 Kf7 d6 Kg6 d7 c4 h5+ Kh6 a5 g4 a6 b3 a7 b4 d5 e3 d6 e4 Ra4 g3 Ne2 c3 Na3 b2 Bg2 b1Q+ Nc1 c2+ Ke2 Ne7 g8B Bg7 Bc4 Nd5 Nb3 c1N+ Kd1 e2+ Kd2 f1Q Na5 e1R Rh4 Nb6 Bh1 g2 Bf7 g1Q N5c4 Rg8 Ne3 Qa6 Nf1 Qg4 Be8 Qc7 d8R Bh8 d7 Rg6 Bf7 Bb7 Rc8 Re2+ Kd1 e3 d8N Rd2+ Ke1 e2 Ne6 Be4 Nf4 Rd7 Be8 Qd8 Rc6 Qdc8 Bf7 Qb2 Nb1 Nb3 Ra2 Qba3 Rb2 Na5 Rh2 b3 Rh4 Kg5 h6 Qa4 h7 Qb4+ Nc3 Bd4 h8R Bf5 Rh2 Bc2 R8h4 Be4 Kd2 e1B+ Kd1 Bd3 Nb1 Bec3 Ne2 Bh8 Be8 Bcd4 Bf7 Rgd6 Bh5 Bh7 Rc3 Kh6 Ke1 Nbc6 Nc1 Rg6 Ne2 Rb8 a8R Rbb7 Ra7 Nb8 Ra8 Qd3 Ra6 Na8 Rc6 Qa6 Rc4 Qa3 Ra4 Ra7 Rc6 Qb4+
1r4BK/2r2b1q/1RNr1Bq1/p4n2/6Nq/nRq2nb1/NPRNk1N1/5b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 a5 c4 f5+ Kd3 Ke5 e4 d5 b6 f3 b7 h3 g5 f4 c5 h4 g6 h2 c6 f2 c7 f3 g7 h3 Nd2 Kf4 e5 Qd6 e6 Ra7 e7 Be6 c8R Na6 b8N Bf7 e8N Rc7 Nc6 Nh6 g8N Nf5 Qe1 Qg6 Ne5 Bd6 Be2 f1B Ra2 f2 Nef3 Kg4 Ra1 Bg3 Ne7 Kf4 Nc6 Kg4 Kc2 d3+ Kc3 Nb4 Ra3 Nc2 Rb3 Na3 Nh4+ Kf4 Nf6 Ke3 Rcb8 Rd8 R8b6 Rb8 Nb1+ d2 Ngf3 Qg7 Rg1 h1Q Rg2 h2 Qd1 Qg6 Bc4 Qg1 Qc2 h1Q Rh2 Bh3 Rg2 f1N Rh2 Qh5 Ng2+ Kf2 Qd3 d1Q Bg5 Qe1+ Nfd2 Qh4 Qe4 d4+ Kd3 Qh5 Nc3 Qh4 Na2 Qh5 Nf3 Nd2 Ng4+ Kf1 Bf6 Qc1 Ng5 Nf3 Qe7 Qd2+ Ke4+ d3 Bd5 Ke2 Qd7 Be6 Qh7 Bf7 Be6 Qc3 Kd5 d2 Ne4 d1R+ Nd2 Be8 Bg8 Qh4 Ke6 Qh5 Bd4 Bf7+ Kf6 N5h4 Kg7 Nf5+ Kh8 Qh4 Nf2 Qh5 Nh4 Bf1 Ng2 Qh4 Bf6 Qh5 Nde4 Rd6 Nd2 Qh4 Rh3 Qh5 Rh4 Qh3 Rc4 Q3h4 Ng4 Qd3 Rc2 Qc3 R6b4 Qb6 Ne7 Qbc6 Rb6 Qe4 Nc6 Qe6 Be5 Qeg6 Bf6 Qhxh7#
2bN2KB/4r3/Rqb1r2r/1N1R1R1q/nrB5/2P1nRR1/B1pq2r1/k3q3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 f5 bxc4 b5 e6 Qa4 exf5 Qb3 f4 Bb2 c3 Qc4 c2 Qb4 axb4 Kf2 c1R Nc3 c5 Nb1 c4 Kf3 c3 Ke4 c2 Kd4 Bg7+ Kd3 Bc3 dxc3 Qb6 Kd2 Qd8 g4 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 a4 Kb3 e4 h5 b6 d5+ Ke5 f5 a5 f3 g5 d4 a6 h3 b7 f4 g6 f2 g7 h2 a7 h4 Ba6 f1Q Ba3 d3 Ra2 f3 Ne2 f2 Bb2 d2 Nf4 d1Q Ne6 h3 Ra5 Qb6 Rd5 Ka2 Nd8 b3 Bc4 Qd2 Na3 Re1 Nb5 Na6 b8R Rh6 Bc1 Nc5 Rg1 h1B Rg3 Nf6 g8B h2 Rb7 Re3 Rf7 Na4 Rf3 Rb8 a8R Rb7 Ra6 Ka1 Ba3 b2 Bf8 b1R Bg7 Qfe2 Bh8 f1R Rg7 Qf2 Rgg3 Rg1 Be6 Re2 Kf5 Qf1 e5 Re7 Ba2 Ng4 Bc4 Rh5+ Kg6 Rb4 Ba2 Rgg2 Rf5 Re8 Kg7 Re7+ Kg8 Rh6 Bf7 Qfc1 e6 Ne3 Rf3 Qce1 Rdf5 Rc7 e7 Rcc6 e8R Rce6 Bc4 Re4 Bg6 Rgf2 Ree5 Ng2 Bgf7 R2e3 Rc5 Re7 Bf1 Ree2 Bd5 R2e6 Ba2 Ne3 R3f4 Bc6 Bfc4 h1Q Rcd5 Qh5 Rff3 Rg2
1n2R1N1/k3b1RB/q1nq4/1r1bn3/p2R1r1B/R3BqNP/r1R3r1/3K2n1 w - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 c4 f5 e4 a5 b4 d5 e5 Kd7 c5 Kc7 c6 Kb6 h3 g5 e6 d3 e7 g4 e8R f4 c7 f3 Ra3 d2+ Kd1 d4 Ra4 f2 Re3 Be6 c8R Bd5 Rb3 Ne7 Ke2 d1R Rba3 Rh5 Nc3 Qd6 Be3 Ka7 Ne4 Nec6 Nf6 Be7 Ng8 Rf5 Rh2 Rb1 Re8 Rf4 Kd2 Rb3 Bd3 f1Q Ne2 g1N Bh7 g2 Ng3 Nf3+ Kc2 Qc4+ Kd1 g1N Rc2 Nfe5 b6+ Kb7 b5 d3 Rf8 d2 Rf7 Rb2 Rb4 a4 Rg7 Ra2 Nf1 Qd3 Rd4 Ra5 Ng3 Ka8 b7+ Ka7 Ne4 g3 b6+ Ka6 Nh6 g2 Ng8 Rb5 Ng3 Nbd7 b8R Qc4 b7 Ka7 Rc8 Ndb8 Bd3 Rbb2 Rf8 Qa6 Re8 Rb5 Bh7 Ne2 Bf2 g1R+ Be1 Rg2 Bf2 Ng1 Be3 Nbd7 b8B+ Ka8 Bc7+ Ka7 Ba5 Ndb8 Bd8 Rab2 Rg4 Bf8 Bh4 Ra2 Rg7+ Be7 Rb2 Ra1+ Kc2 d1Q+ Kc3 Nf7 Rc2 Qf3 Kd3 Nfe5+ Kc3 Ne2+ Kd2 Ra2 Kd1 Ng1+
2R1B3/2n2R2/kPN4R/p2R1bnQ/bK3bR1/R2N2rq/q1rn2n1/3bq3 w - - 0 1 illegal: No possible last move
1r2rnr1/2B5/B3R3/NnqNPK1n/n5n1/1rR1Rp2/1k1rb2q/1NR3R1 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Qf4 f2+ Kd1 Bd6 Qg5 f4 Nb1 f3 Qg4 Bf4 gxf4 hxg4 Kd2 Ke7 Kd3 Kf6 Ke4 g5 a4 b5 h4 d5+ Kd3 b3 e4 b2 c4 g3 c5 g4 h5 g2 a5 g3 f5 Ke5 a6 b4 a7 b3 f6 Nd7 c6 Qa5 c7 Nf8 h6 Qc5 h7 Nh6 f7 Ba6+ Kd2 d3 c8N Kd4 e5 Rb8 a8R Ng4 Nh3 g1Q Rh2 g2 Rh1 Qh2 Ra3 g1R Na7 Bb5 Nc3 b1R Nf4 b2 Nc6+ Kc4 R8a5 d4 Nfd5 Rg2 Ra1 Kb3 Rg1 Rg8 h8R Re8 Rh6 Bc4 Kd1 d2 Re6 Ba6 Be2 f1N Bb5 Ng3 Bf1 Nh7 f8R Nh5 Rf4 Bd3 Re4 Nf8 Re3 Re2 R1a4 Ba6 Rc4 Rg2 Rb5+ Ka3 Kc2 d1N+ Kd3 Rd2+ Ke4 d3 Ra5+ Kb3 Ra1 Kc2 Na2+ Nc3+ Kf5 Kb3 Be2 Na4 Bf1 Rf2 Nac3 d2 Be2 d1N Na5+ Kc2 Bd2 Bb5 Na2+ Ndc3 Be1 Rg2 Bh4 Ba6 Bd8 Bb5 Bf1 Rd2 Bc7 Ba6 Rd4 Bc4 Rdd3 Nb5 Ra3 Be2 Nac3 Re1 Rb3 b1R Rba3 Rb4 Rc1+ Kb2 Nb1 Red1 Rac3 Rb3 Nf4 Rdd8 Nd5 Rc8 Nf6 Rd2 Nd5 Bd1 Bd3 Be2 Bc4 Rb8 Bd3 Na7 Ba6 Nb5
7q/rB2B2B/Br3N1b/2PR1K1b/3r2rk/Bp2Nnq1/qQBq3q/3b4 w - - 0 1 legal: proof: d4 g5 f4 a5 h4 c6 a4 f6 g4 Na6 b4 axb4 e4 Nb8 d5 cxd5 h5 Nc6 Ra3 Ne5 Rf3 d4 f5 Ng6 Rf4 gxf4 e5 fxe5 hxg6 e4 g5 Qa5 Kd2 Qb6 Ke1 Qd8 Ke2 h5 c4 b5 g7 Kf7 c5 d5 a5 e5 a6 d3+ Kd2 b3 a7 d4 g6+ Kf6 Be2 Kg5 f6 b2 f7 b4 Qa4 h4 Qa2 f3 Nc3 b1Q Nd1 h3 Qa3 h2 Qc3 b3 Ne3 f2 Bf3 f1R Qa1 Nh6 g8B Qa2+ Bb2 Bg4 g7 Kh4 Qc1 Bh5 Nc4 Nf5 Qa1 Rh6 Qb1 Rb6 Be2 Rf4 Ne3 Rg4 Ke1 d2+ Kf2 d1R Nh3 d3 Ng5 d2 Ba6 Nd4 Bh7 Nf3 g8B Bh6 f8B Qc8 Re1 h1Q Ba3 Qb8 Rg1 Qh2+ Rg2 Qd8 Qb2 Qf6 Be7 Qh8 Nc2 e3+ Ke2 Rb1 Kd3 d1B Rd2 e2 Ne3 e1Q Be6 Qeg1 Bef5 Qgg3 Be4 Rc1 Beg6 Rcc4 Ne4+ Kh3 Nf6 Rcd4+ Kc3 Kh4 Bc2 e4 Rd3 Rad8 a8B R8d7 Rd2 Ra7 B8b7 Ra4 Rd5 Rab4 Nf1 e3 Kd3 e2 Ne3 e1Q Rd4 Bf4 Ke4 Qed2 Kf5 Bh6 Rd5 Rbd4
1Bn5/4RRKb/2nbB3/p1bP3q/4rnB1/B1b1N1kn/3BRNnn/5n2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 c5 exf4 c6 f3 Ra2 dxc6 Ra3 c5 Ra1 c4 Ra2 a5 Qc2 h5 Ra1 f4 Qf5 Ra6 Qg5 Rf6 Qh4 Rf5 gxf5 Qd7 Qh3 Qd8 Qg4 hxg4 Kf2 Kf7 e4 Kf6 h4 Ke5 b4 c5 h5 g5 f6 a3 d3 g3+ Ke1 c3 h6 a2 f7 c2 Kd2 c4 Kc3 g4 b5 g2 h7 f2 b6 f3 b7 g3 Ne2 g1B Na3 g2 Nf4 Qd5 Nh3 Ne7 Rh2 Nbc6 Be2 f1N Bd2 c1N Nc2 f2 Ne3 Bf5 Bg4 Nc8 b8B+ Bd6 f8R Qc5 Rf7 Re8 Rb1 a1B+ Rb2 Qd5 Rh1 Nh2 h8B+ Ke6 e5 f1N d4 Nd3 Nf2 Ne1 Bf6 Qf3 Bg5 Qh3 Be7 Qh5 Nc2 Kd5 e6 Bh7 Bf8 Ne5 e7 Nc6 Be2 Ke6 d5+ Ke5 Bf3 N6a7 Ne3 Nc6 Nfd1 Bf2 Bg4 g1N Be6 Ng2 Bg4 Rd8 e8B Nh3 Bed7 Re8 Bde6 Ke4 Re7 Kf4 Rf7+ Kg3 Be7 Nb4 Kd4 c3 Ra2 Bg1 Nf2 c2+ Rb2 c1N Bf8 Bb1 Re7 Ncd3 Ke4 Qh4 Kf5 Qh5+ Kf6 Ndf4 Kg7 Nc6 Rf7 Bh7 Be7 Bc7 Ba3 Bd6 Bd7 Re4 Bde6 Rd4 Rbb7 Bc3 Rbe7 Bcb4 Nd3 Bf2 Rg1 Be1 Nf2 Bbc5 Rh1 Nf3 Rh2 Re4 Bdc1 Beb4 Bd2 Bc3+ Kf8 Ne2 Nfd1 Nge1 Rf2 Nef4 Re2 Neg2 Nf2 B3b4 Kg7 N3h2 Rf8 Bc3+ Rf6 Rd4 Rff7 Re4+
1b2rN1N/1n2q2b/B1b4p/N7/1q1b2k1/BR1NB3/b1Pb2r1/q2K1RqN w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Qg4 e4 Qf3 Nf6 Qd1 Ng8 g4 Nf6 h4 Nd5 Qd2 Na6 Qf4 gxf4 g5 Nc5 g6 Nf6 Bd3 Ne6 Bf1 Ng5 hxg5 Ng8 a4 b5 a5 d5 g7 Kd7 g6 e5 f6 Ke6 a6 Kf5 f7 f3 a7 e3 Ne2 h6 Kd1 e4 Ba3 b3 Nd2 b2 Bg2 b1Q+ Bc1 b4 Rf1 f2 Bf3 b3 Nc3 d3 Rg1 f1B Bg2 b2 Ra5 e2+ Ke1 Bd7 Nb3 d2+ Kf2 d1Q Rh1 e1B+ Ke3 Bd3 Ne2 Bd6 f8B Bc6 Rf1+ Kg4 Ng3 Bb8 Ba3 Qe7 Nh1 Bc3 Rb5 Nf6 g8N Ne8 g7 Nd6 Na5 Nb7 Rb3 d4+ Kf2 Qa1 Be3 Qb4 Ne7 b1B g8N Ba2 Ng6 Qe2+ Kg1 Rh7 Nh8 Rg7 Ne7 Rg5 Nd5 Rg7 Bec1 e3 Nf4 Bh7 Nd3 Qe1 Bd2 e2 Be3 Qh4 Be4 Qhe7 Kf2 e1B+ Ke2 Bed2 Bd5 Rg8 Bc4 Rg5 Ba6 Rg8 Nc1 d3+ Kd1 Bd4 Bg5 Bh2 Be3 Rae8 a8N Bb8 Nc7 Be1 Rf7 d2 Ne6 Rg5 Nf8 Rg8 Ke2 Rg6 Nd3 d1Q+ Kf1 Qdc1 Ke2 Bd2 Rf3 Qg1 Rf1 Kh3 Rbb1 Rg2+ Kd1 Bc1 Rb2 Kg4 Rb3 Bd2+
nbRrnbBN/1bnk1K2/nQ1b2P1/NR1N4/N1b5/2p2Nr1/1n5n/6N1 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Qe2 d5 Qd1 dxc4 g4 Nh6 h4 Nd7 h5 Ng8 Bb2 Nb8 Be5 Qd6 Bf4 gxf4 g5 Qg6 hxg6 Be6 Qg4 Bd7 Qd1 Bc8 Kf2 h5 d4 b5 a4 c5 d5 e5 a5 e3+ Kf3 b3 Ke4 b4 g7 c3 g6 f3 d6 e2 Kd5 e1N a6 e4 a7 e3 f6 e2 f7+ Kd7 Qc2 b2 Rh4 c4 Ra2 f2 Qe4 c2 Ra6 c1B Rh3 c3 Qd3 h4 Re3 b3 Ra5 h3 Ra6 h2 Rf3 h1B Qc4 Rh3 Nd2 b1N Ra5 b2 Nb3 Bf4 Qc5 Nd2 Qb6 b1N Rb5 Na6 Na5 Nc4 Bg2 Rb8 a8N f1N Re3 Bg3 Re8 Nd3 Bf3 e1B Be4 Nh6 g8N Nf5 Ne7 Nh2 Bg2 Ndb2 Bf3 Bh6 Rg8 Ng7 f8N+ Ke8 Be4 Nba3 Ne6+ Kd7 Nd4 Ne8 Ndf3 Bf8 Bb1 Bg2 Ba2 Bf1 Rh8 Bgf2 Rg8 Rg3 Rh8 Bc5 Bb3 Ne3+ Ke5 Bb7 Bg8 Rd8 Nd5 Nec4+ Kf5 Ng7+ Kf6 Ne8+ Kf7 Bb4 Nac7 Bd2 Ne6 Bf4 Nc5+ Kc8 Qa7 Nb6 Na4 Na8 Qb6 Bc4 d7+ Kb8 Rc5 Nb5 Rh5 B4d6 Rh8 Nbc7 Rb5 Rc8 d8N Bbc5 Ne6 Rd8 Neg5 Kc8 Rh4 Bf1 Rc4 Ba3 Rcc5 Bc4 Rc6 Kd7 Rcc5 Ne6 Rc8 Bb8 Nb4 Bd3 Nd5 N8g7 Kf6 Bc4 Nf7 Bad6 Nh8 Ne8+ Kf7 Ne6c7
B4nk1/1q5q/b1prrq1B/b1b3rR/4B1p1/2n1R1K1/R2B1P2/nNBN4 w - - 0 1 legal: proof: c4 d5 g4 dxc4 e4 f5 h4 fxe4 a4 b5 axb5 g6 h5 gxh5 g5 Qd4 Qe2 Qd8 Qg4 hxg4 b4 Kf7 d4 e5 d5 h5 b6 a5 b7 e3 b5 e4 b6 c3 d6 c2 d7 e2 Nh3 a4 Be3 h4 Na3 c6 Nb1 a3 Ra2 Rh6 Bc1 Rd6 Nf4 h3 Nd5 h2 Ndc3 Ne7 g6+ Kg8 g7 Ra5 Nd1 Nd5 Bg2 Qc7 d8B Nc3 Bdg5 Nd7 b8R Qb7 Bh6 Rg5 Bd2 c1Q Ra8 Qc7 b7 Qb2 b8B Ba6 Ba7 Qcb8 Bae3 Q8b7 Re8 Qa1 Re5 Be7 Bc1 Nf8 Bed2 Qab2 Rd5 Qa1 Rd3 Qab2 Re3 Qa1 Rf1 h1Q Bf3 Qh5 Rh1 Qf7 Rh5 Qf5 Rc2 a2 Bh1 Qab2 Bg2 a1N Bf3 Q2b4 Ra2 Qd4 Bh1 Qdf6 Bg2 Kh7 g8B+ Kh8 Be6 Qh7 Bf5 Kg8 Bd7 Bd8 Bf5 Bb6 Bc8 Bc5 Bb2 Qbg7 Bb7 Qc7 Ba8 Qb7 Bdc1 Re6 Kd2 e1R Ba3 Rh1 Bb4 Rh3 Ke1 Rf3 Bh1 Rff5 Bf3 Rd5 Ba5 Rd3 Kf1 Rdd5+ Kg2 Rdd6 Ree2 e3 Be4 Re7 Re1 e2 Kg3 Ree6 Bb4 Na4 Bbd2 Nc3 Reh1 e1B R1h3 Bb4 Kh2 Ba3 Re3 Bc5 Kg3 Nd5 Bc3 Bd2 B3b2 Bc3 Bd2 Ba5 Bbc1 Nc3
5knB/r1q2N1P/4K3/n1pNbp2/Q3Nb2/1b2n3/N2Nr1Bb/q1b2RN1 w - - 0 1 legal: proof: b4 d5 a4 b5 g4 h5 f4 hxg4 c3 g3 f5 g2 c4 dxc4 axb5 e6 Ra6 exf5 Ra3 f4 Rg3 fxg3 Nh3 g1Q e4 f5 Ke2 g5 Kf3 a5 d4 c5 e5 g4+ Kf4 g2 e6 g3 Ke5 c3 d5 a4 b6 a3 e7 a2 b7 a1N b5 c2 b6 Ra2 d6 Nb3 d7+ Kf7 e8N Qg5 d8N+ Ke7 Nc7 Ra3 Nd2 Na1 Bb2 Be6 Nf7 Ra7 Qg4 Rh5 Qa4 Bh6 Bc3 Ba2 Bd4 Kf8 Nd5 Qf2 Ke6 g1B Bh8 g2 Qb3 Nc6 b8N Qgg3 b7 Qd4 Qa4 Rg5 Na6 c1B b8N Nc2 Nb4 Bb3 Na2 Bf2 Rg1 Na5 Rh1 g1B Nd7+ Ke8 Nf6+ Kf8 Nfe4 Qc7 Qa3 Qa1 Qa4 Rg3 Bg2 Bg5 Be5 Bd4 Bh8 B1e3 Rg1 Be5 Rf1 Rf3 Ng1 Rf2 h4 Re2 h5 Bh4 h6 B3f4 h7 Ne3 Qa3 Bhg3 Qa4 Bh2
B4B1q/q3NBpk/2r4q/N1K2nR1/b5r1/pP3nqN/1N3Nrn/4R1b1 w - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 Kd2 a5 Kd3 d5 c4 f5 e4 Kf7 h4 Kg6 c5 f4 b6 f3 b7 f2 e5 a4 c6 a3 h5+ Kh7 e6 Nh6 e7 Nf5 e8N Nd7 b8N Ra6 h6 Bc5 b3 Rb6 Nh3 g1R c7 g2 Bf4 Qg5 Nc6 Qg3+ Be3 Bb7 Be2 f1N c8B Nh2 Na5 Bc6 Nc3 Ba4 Nd6 Rd8 Bh5 Ne5+ Kc2 Nef3 Kd3 Re8 Re1 Re4 Bf7 Rh4 Nce4 Rg4 Kc2 d3+ Kc3 d2 Nef2 d1Q Ndc4 Qb1 Nb2 d4+ Kc4 d3+ Bd4 d2 Bb7 d1Q Ba8 Qdc1+ Kd5 Be7 Bc5 Qcf4 Bb4 Bc5 Re5 Bd4 Bf8 Qbc1 Re1 Qb8 Re5 Rd1 Rf1 g1Q Rfe1 Qcf4 Kc4 Rd2 Rb5 Qa7 Kb4 Qh1 Kc4 N5h4 Rg5 Nf5 Kd5 Bc3+ Kc5 Re2 Nfd1 Rg2 Ndf2 Bd4+ Kd5 Qd6+ Kc4 Kh8 Nfd3 Rb7 Nhf4 Bg1 Nf2 Qg6 Kd5 Rb6 Kc4 Nf1 Kc5 Qhh4 Nh3 N1h2 Bfd5 Qe6 Bc4 Kg8 h7+ Kf7 h8N+ Kg8 Ng6 Qh8 Ne7+ Kh7 Bcd5 Qh6 Bf7 Rc6+
NNqn1BbN/1P2b3/1QN1Rr2/3kb1r1/1q1n3N/2p1R1b1/K2p3q/2N1n3 w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 hxg4 Kf2 exf4 Ke1 c6 c4 Qg5 d4 Qe7 c5 Qd8 d5 cxd5 Bg2 Rh7 Be4 Rh6 Bd3 Rh8 Bc4 dxc4 Kd2 Ke7 Kc3 Ke6 h4 d5 b4 g5 Kb2 f5 e4 a5 e5 g3 h5 a4 b6 a3+ Ka2 g2 b5 f3 c6 f4 h6 d4 c7 d3 h7 g4 b7 d2 b6 g3 Nh3 g1Q Qf1 g2 Nc3 f2 Rb1 f3 Nd5 Nc6 b8N Nge7 b7 Rg8 h8N Ra6 Nb4 Qh2 Qe1 g1B Ka1 f1Q Qg3 a2 Ba3 f2 Qb3 Nf5 Re1 Rg5 Nd3 Kd5 e6 Nfd4 e7 Be6 e8N Bg8 c8N Be7 Na7 Qc8 Nc1 Nd8 Re3 Rf6 Qb6 Qd3 Kb2 a1B+ Ka2 f1N Nac6 Bf2 Ng1 Qc3 Nf3 Qb4 Nh4 Bg3 Re6 Ne3 Re1 Nec2 R1e3 Qb5 Bd6 Qb4 Bc5 Bb2 Bd6 Ne1 Bc5 c3 Bd6 Ba3 Nc7+ Kc4 Na8 Kd5 Bc5 Bed6 R6e4 Bdf4 Re6 Be5 Bd6 Qa5 Bf8 Be7+ Kb1 Qb5+ Ka2 Qb4
knb1N1R1/3p3B/n1pb1rB1/3B2B1/1K1Q1B2/PB1rn1n1/4qn1n/2r2N2 w - - 0 1 legal: proof: b4 e5 h4 a5 f4 exf4 d4 g5 b5 gxh4 a3 c6 d5 Na6 Ra2 Nc7 Rb2 Na6 Rb4 axb4 d6 Nc7 c4 b6 c5 bxc5 dxc7 Ba6 Kf2 Bb7 Ke1 Bc8 Kd2 Ra4 e4 f5 g4 h5 b6 b3 Kc3 b2 b7 c4 b8B h3 e5 f3 e6 f2 e7 f4 g5 f3 g6 h2 g7 h4 Bd2 h3 Bh6 Nf6 g8B Ne4+ Kc2 c3 Kb3 c2 Bg7 c1N+ Kc2 Rh6 Bb3 Nc5 Kc3 Na2+ Kd2 Rf6 Nc3 b1R Qe1 Rd4+ Bd3 Nb4 Nb5 f1N+ Kc3 f2 Qe5 Nba6 Nf3 Rc1+ Bdc2 Rdd6 Rg1 h1N Nd2 h2 Bh6 Rd5 Rg8 Nhg3 Qe4 h1N Bg5 Nh2 Qc4 f1N Qg4 Ne3 Nf1 Nf2 Qa4 Rd2 Qd4 Neg4 Kc4 Re1 Bf5 Rd3 Bh7 Rc1+ Bc2 Kf7 e8B+ Ke6 Beg6 Qe8 Nd6 Be7 Be4 Qh5 Beg6 Bf8 Bd2 Qe5 Ne8 Qe2 Bg5 Rd2+ Kc3 Ne3 Ba7 Rdd1 Bb6 Nb8 Kb4 Rd3 Bb3+ Ke7 Bd5 Bb7 c8B Ba6 Ng7 Kd6 Bd8 Bb7 Be7+ Kc7 Ne8+ Kb6 Bd6 Ka7 Bdf4 Bd6 Bb3 Ba8 Ba6 Bb7 Bb5 Ka8 B5c4 Bc8 Bd5 Nca6+
3R2Rn/3NN3/kBB2q1b/2BbrP1N/B4B1r/2p3p1/5nnb/Kn2b2b w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 e4 gxh4 a4 f5 Qb3 fxe4 Qg3 b5 axb5 hxg3 Kd1 Kd7 Kc2 a5 f4 c5 b4 Kc7 Kb2 Kb6 d4 e5 f5 h5 g5 c3+ Ka2 c2 g6 c4 d5 a4 d6 c3 g7 h4 d7 a3 Rh2 e3 Bc4 e4 Nf3 h3 Bd5 e2 Ne1 e3 Bc6 Bc5 Nf3 e1B Ne5 e2 Ng6 Na6 Nd2 Nh6 g8B Bg1 Bb3 Bb7 Ne4 Nc5 Nf6 Nd3 Bf4 c1B Ba4 Nf7 Ne7 Nf2 Nh5 Ra5 Kb1 Ka7 b6+ Ka6 Rg2 Qf8 d8B h2 Bdc7 Ba8 b7 h1B b8B Re5 Ba7 Bh2 Bcb6 Rh6 Ra2 Nh8 Ka1 Qf6 Rd2 Rh7 Rd8 Be3 Rg8 Bc1 Bd7 Bd5 Bdc6 Rh6 Ng7 Rh4 Nh5 Bed2 Rg1 e1N Rf1 Ng2 Rd1 Be1 Bc5 Be3 b5+ Ka5 b6 Ka6 b7 Bc1 Bab6 Be3 Kb1 a2+ Kc2 a1N+ Kb1 Nc2 Rd3 Na3+ Ka1 Ba2 Rdd8 Nb1 Bd7 Bd5 b8N+ Kb7 Bdb5 B3d2 Nd7 Be3 Bc6+ Ka6 Bh6 Bd4 Bc1 Be3 Bd2 Bg5 Bf4 Bh6
3K4/bR4n1/2qnB1qr/NpN5/2nr1P2/1qN1p2B/1Nn1B1q1/kb1N2R1 w - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 Qa4 fxe4 Qb3 d5 cxd5 g5 Qd1 g4 f4 h6 Qf3 gxf3 g4 Bg7 g5 Ra6 g6 Bf8 Bb2 Ra3 Bf6 Ra8 Bg5 hxg5 Kf2 Kd7 Ke3 Kd6 Kd4 b5 h4 c5+ Ke3 e5 d4 c4 a4 f2 g7 g4 h5 g3 a5 c3 a6 b3 h6 b2 a7 c2 h7 c1Q+ Nd2 b1Q Be2 g2 Nh3 Nf6 g8B g1Q Be6 Qg2 Rg1 Nc6 Ra2 Rb8 a8B Nh5 Ra7 Qdg5 Rf7 Qb4 Rb7 Qcc4 Nb1 Qbb3+ Nc3 Ne7 Rc7 Ng7 Rb7 Rg8 h8N Qc6 Ng6 Rh8 Nh4 Qg6 Nf3 Rh4 Ne1 Rh6 Nd3 Bd7 Nb2 Rd8 Ng5 Nc8 Nh3 Ke7 d6+ Kf6 Bg8 Bf5 d7 Bc5 Bd5 Nd6 Be6 Rb8 d8N Ba7 B6c4 Rc8 Ne6 Rd8 Nc5 Rd7 Be6 Rd8 d5 Rd7 Kd2 f1N+ Ke1 e3 Nf2 Be4 Nfd1 Bb1 Bh3 e4 Be6 Nc8 d6 Nd2 Bh3 Rd8 d7 Nd6 Be6 N2c4 Bh3 Re8 d8N Re5 Be6 Rd5 Bh3 Rd4 Be6 Qc8 Nc6 Qce8 Na5 Qc6 B2g4 e2 Bh3 Qh1 Kf2 e1N Ke2 Nc2 Kf2 Qf7 Kg3 e3 Kg4 Qfe8 Rb6 Ke7 Kg5 Qhg2+ Beg4 Qcd7 Bf3 Qc6 Ne6 Kd7 Nc5+ Kc7 Be2 Qe6 Rb8 Qee4 Re8 Kb6 Re6 Qd3 Rg6 Qde4 Kf6 Qf5+ Ke7 Qd3 Rf6 Qg6 Ncd3 Ka6 Kd8 Kb6 Rf7 Ka6 Bc8+ Kb6 N3f2 Kc5 Bce6 Kb4 Nfe4 Ka3 Re7 Q6g3 Nc5 Qg6 Nd5 Ka2 N5c3+ Ka1 Rf7 Q2e4 Rb7 Qeg2
1N2nK1B/B4rR1/R2N1p2/4krRb/1nR1r2n/1p1RrP2/3Nqn2/3rq3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 b5 d5 b6 g6 e3 d3 Be2 d4 Bf3 d2+ Ke2 Bg7 Bd5 axb6 Bc4 b5 Kf3 b4 Bf1 d3 Qe2 Bd4 exd4 g5 Ke3 g4 f3 g3 Qf2 h5 Kf4 gxf2 g4 Ra7 Kg3 Nf6 g5 Ng8 Bh3 Ra6 Kg2 Ra8 Bg4 hxg4 Kg3 Kd7 Kf4 Ke6 c4 d1Q a4 f1R h4 b5 c5 d2 a5 g3 c6 g2 a6 Qa5 g6 Re1 Kg5 Rh7 a7 Na6 h5 Nf6 c7 Ne8 g7 f6+ Kg6 Qa2 Ne2 g1N g8R Nh3 h6 Nf2 Ba3 Rf7 h7 Kd6 h8B e5 d5 e4 Kh6 e3 Rh4 Bg4 Nd4 e2 Nc6 Bh5 Nb8 Qc1 Rg2 Qc3 Rhg4 d1R c8R Rd4 Rc4 Re4 Rg6 Qad2+ R2g5 Rd1 Bc1 e1N Ra3 Qe2 Be3 Ng2 Bd4 Qce1 Nd2 Nh4 Rac3 Ke7 d6+ Ke6 d7 Kd6 Ra3 Ke6 d8N+ Kd6 Nb1 Rd3 Nd2 Rde3 Nb7+ Ke6 Nc6 Rd8 a8R Rd5 Bb6 Rf5 Nb8 Ke5 Rac3 b3 Rg8 b4 Nd6 b2 Rd3 Nac7 Ra6 b1R Ba7 b3 R8g6 Rd1 Rg8 Ng7 Kh7 Nge8+ R8g7 Nd5 Kg8 Re7 Kf8 Nb4 Rdd4 Rb7 Rd3 Rf7+
3b3R/pB3kn1/N4q1B/K1pRr1qq/1BN2rBr/3B1bq1/1b3P1r/1N6 w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 f5 e4 fxe4 a4 b5 h5 bxa4 g5 Qd4 g6 Nd7 Qf3 Ne5 Qe3 Qd8 Qh6 gxh6 g7 Ng6 hxg6 h5 Rh3 h4 Rh2 Qd4 Rh1 Qd8 b4 e5 d4 h5 Kd2 c5 Kc3 e3 d5 e2 b5 e1Q+ Nd2 a3 b6 a2 b7 e4 b8N h3 d6 e3 Bb2 h2 Bd3 e2 Ba3 h4 Rb1 a1B+ Bb2 h3 Nf3 Ne7 g8B Qg1 g7 e1R Ne4 Qg3 Na6 Bg4 Rd1 Nf5 Ned2 Rh4 Nb1 Qf6+ Ne5 Bf3 Bd5 Be7 g8B Ng7 Bge6 Bd8 d7+ Kf8 Kc2 c3 Kb3 c2 Bg4 c1Q Ka4 Qcg5 Nc4 Re5 Bc3 Bb2 Bb7 Kf7 Bb4 Rc8 Rd2 Rc6 Kb5 Rd6 Ka4 Rd4 Rdd1 Rf4 Kb5 Ba5 d8B Bb6 Be7 Bc7 Bf8 Bd8 Rhe1 h1R Re3 Nh5 Bh6 h2 Ka4 Ng7 Rd2 Rd5 Re8 Re5 Rh8 Rd1 Bh7 h1Q Rd5 Rdd4 Bd3 Rh2 Bgc8 Rfh4 Bg4 Rf4 Kb5 Qe1 Ka4 Qe4 Kb5 Qeg6 Ka4 Q6h5 Kb5 Be7 Ka5 Bd8+
2N2bKb/3B2BB/n2BR1p1/n1b1pn1N/b1Bn1B2/1n1n1k2/1q1r1P2/6Q1 w - - 0 1 legal: proof: b4 a5 g4 axb4 e4 f5 d4 fxe4 a4 h5 d5 Ra5 d6 Rf5 gxf5 b5 Ra3 cxd6 Re3 d5 Rg3 d4 Rg4 hxg4 Ke2 Kf7 h4 Kf6 c4 Ke5 c5 d5 c6 e3 Kd3 Kf4 h5 b3 a5 g6 h6 b4 a6 g3 f6 g2 c7 b2 a7 b3 a8B Bd7 c8B Qb6 f7 Ba4 h7 Nh6 Be6 Na6 Qh5 Nf5 Na3 b1N Nc4 b2 Qe2 Nc3 Qh5 b1N Be2 Nb5 Bc8 Nd2 Nf3 g1B Nfe5 Bh2 Qh3 Nb3 Nd7 Bg3 Bf1 Kf3 Qh2 e2 Nf6 e1B Nd6 Bb4 Bd7 Bc5 Qg1 Be5 Nh5 Rg8 Bb7 Bh8 Nc8 e5 Bf4 Ne3 Bbc6 Nc4 Be6 Qb8 Bcd7 Nca5 Rh4 Rg7 Rg4 Qb7 Rg5 Rg8 Rf5 Qb8 Rf6 Qb6 Kc2 d3+ Kb2 d2 Bc4 N5d4 Kc3 d1N+ Kd3 Bfg7 f8B Ne3 Bd6 Rd8 Bg8 Nef5 Re6 Bf8 Kc3 Bf6 h8B Qb4+ Kd3 Qa3 Bg7 Qb2 Bgh6 Bh8 Bg7 Ndc6 Qb1 d4 Bh7 Kg2 Ke4 d3 Kd5 d2 Bg8 Ncd4 Bh7 Kf3 Qg1 d1N Re8 Nc2 Ke6 Ncd4+ Kf7 Nde3 Nf6 Nd5 Nh5 Ndb4 Kg8 Nd3 Na7 Rb8 Re6 Rb4 Bcb5 Rc4 Nc8 Rc2 Bc4 Rd2
1q6/1Rpbpb1N/2r2bb1/5R2/n1r2nRp/NP2RRB1/1k1r1b1R/3K1Q2 w - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 g5 h4 gxh4 Ke2 a5 Nh3 a4 Ng1 a3 Ke1 a2 Na3 Bh3 Bd3 Bc8 Bb1 axb1B f4 Kf7 g4 Ke6 d4 Kd5 b6 h5 b7 h3 b3 e3 g5 c3 g6 h4 f5 e2 f6 c2 f7 h2 g7 Bd7 Ra2 Nf6 g8R Ra6 Bh6 c1R Rg4 Bg7 f8R Rc4 Nh3 Rac6 Ng5 Nh5 Nh7 Bf6 Bf4 Na6 b8R Bg6 Rb7 Qb8 Rf1 h1B Bg3 Nc5 Rf3 Na4 Kd2 Bg2 Qf1 e1B+ Kd1 Nf4 Rf7 Bh1 Rh2 Bf2 Rf8 Ke4 d5 Kd4 d6 Bg2 Rf7 Rd8 Re3 Bd5 Rf3 Bg7 Rf5 Bf6 Re3 Bc8 d7 Bdf7 Re4+ Kc3 Re3+ Kb2 Rf3 Rh8 d8R Bce6 Rdd3 Rd8 Re3 Rdd4 Rf3 Bd7 Re3 Rc2 Rf3 Rdc4 Rde3 Rd2+
rk6/3prp1R/RK3QRN/5Rpb/b7/2r2RnN/qRBbbP2/4nn2 w - - 0 1 legal: proof: b4 c5 a4 b5 d4 cxb4 axb5 e5 Qd2 exd4 Qd3 Qb6 Qd1 Qd8 g4 Qb6 g5 Qa5 h4 Qd8 h5 Ne7 h6 gxh6 g6 Ng8 Bg5 hxg5 Kd2 a5 Kd3 h5 Kc4 h4 e4 d3 c3 a4 g7 d2 e5 a3 b6 b3 Kb5 h3 e6 b2 b7 a2 c4 h2 c5 Qa5+ Kc4 Kd8 e7+ Kc7 e8R Ne7 g8R Nf5 c6 Ng3 Nc3 b1B Nh3 Na6 b8R Nb4 Qf3 d1B Qf6 Nd3 Re3 Bh5 Ne4 Bb4 Rf3 Bd2 Nd6 Bc2 Rb2 Ba4 Nf5 Ne1 Rg6 Re8 Bd3 Re7 Nh6 Nf1 Bc2 Ba6+ Kd4 Kc8 c7 Be2 Rf5 Qa6 Kc5 Qc4+ Kb6 Qd5 Rg1 h1N Rg3 Qc4 Rgf3 Nhg3 Rd1 a1R Rdb1 Ra3 Ra1 Rc3 Raa2 Bb3 Ra6 Bd3 Ka5 Kb7 c8R Be2 Rh8 Kc7 Rh7 Kb8 Kb6 Ba4 Ra2 Qd5 Rb2 Qa2
k2rb3/B1p2RqR/1B5P/pn1r1rBB/7r/1b1BpN2/1n1q4/1n1NK1R1 w - - 0 1 legal: proof: f4 b5 c4 d5 a4 dxc4 f5 bxa4 f6 gxf6 e3 f5 Qe2 f4 Qh5 Bd7 Qd1 Bc8 g4 h5 d4 Qd6 g5 Qd5 Qg4 Qd8 d5 hxg4 Nc3 Bg7 Nb1 Bd4 exd4 Qd6 Nf3 Qd7 Ng1 Qd8 b4 Kd7 h4 e5 g6 a5 d6 Kc6 g7 Kb7 d7 f5 b5 g3 h5 f3 d5 g2 b6 a3 d6 f4 Rh4 e4 Kd2 a2 Bd3 e3+ Kd1 c3 Bd2 c2+ Ke1 Nf6 g8B Ne4 Bf7 Nc6 Bb5 c1N Na3 f2+ Kd1 f1R+ Be1 f3 Nb1 f2 Nc3 Nd2 h6 Na7 Rf4 Nd3 Bh5 Rb8 Ke2 Ka8 Bc4 Nb5 b7+ Ka7 Rd1 a1Q Rf6 Ra8 b8B+ Kb7 Ba7 Nb1 Bd2 Rf8 Rc1 Rd1 Nf3 g1R Rf5 Rg6 Rf4 Rh1 Rg1 Rh4 Nd1 Rg5 Bb4 Rb8 Bbc5 Ka8 Rf5 Qd4 Rf4 Nb2 Bcb6 Bb7 Rf6 f1B+ Ke1 Bc6 Rf5 Qe7 d8B Be8 d7 Rf7 Rf4 Rd5 Be2 Qf8 Bg5 Qd3 d8R Qg8 Rd7 Rd8 Rf5 Qd4 Re5 Rf5 Rh7 Qg7 Re7 Qd3 Rf7 Qc2 Bc4 Bd3 Bb3 Bc4 Ba4 Qg2 Bc2 Bb3 Bd3 Qd2+
bN1NQ2r/2n5/2nPRB2/b1p2R2/1pK5/r1R2n2/1RR2rpn/q2k1r1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 h4 Ke7 e4 Kd6 Ke2 Kc5 Kd3 b5 a4 f5 d6 g5 a5 g4 a6 b3 e5 Kb4 a7 c5 h5 f4 d7 f3 h6 f2 e6 f1R h7 b2 e7 Nc6 e8R Qf6 d8R Rf4 Ra3 Qe7 Qe2 Nf6 Nc3 b1N Rd5 Bh6 Nh3 g1R Rf5 g2 Na4 g3 Nb6 Rf2 Nf4 Rgf1 Ne6 g1N Nd8 g2 Rc3 Qe5 Bb2 Na3 Nd7 Nf3 Re6 Bb7 Nb8 Ng4 Rc2 Qg7 Bf6 Kb3 Qe5 Ngh2 Qe1 Rf8 h8R b4 Qe5 Bg5 Rh3 Nb5 Qe3 Rh8 Qe4 Ka3 Kc4 Nc7 d4 Ka4 d5 Bh4 Bg5 Qa1 d6 Ka3 Bf6 Bg5 Rc3+ Kb2 Rc2+ Kb1 Rb2+ Kc1 Qe3+ Kd1 Qe4 Nfd4 Rc3 Ndf3 Na6 Rb8 a8R Rh3 Ra7 Ba8 Rbc2 Rc8 Nb8 Bh4 Raa2 Bg5 Nf7 Rch8 Rab2 Rg3 Be5 Bd8 Bf6 Ne8 Qe5 Ba5 Nd8 Nc7 Qe4 Na7 Qc6 Rgh3 Qd7 Nc6 Qe8 Ng5 Rcf3 Rg3 R3f4 Rd3 Rf3 Ra3 Rfc3 Ngf3
NQ2r1R1/7b/2N1rRqp/BR4b1/1qr2RKp/2k2PR1/2b4p/rnb4R w - - 0 1 illegal: No proof kernel
1R3b2/BB1B2kP/4p1n1/1n3rpb/nbN2B2/pK6/1r1NpB2/1R1Rrq2 w - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 g4 b5 axb5 h5 Qd3 hxg4 Qc3 dxc3 Kd1 Kf7 Kc2 d5 b4 a5 f4 g5 h4 d4 c5 a4 f5 a3 f6 g3 h5 d3+ Kb3 g2 h6 e3 b6 d2 h7 d1N b7 c2 c6 e2 b5 Nc3 b6 Bg4 c7 e6 c8B Bh5 Nf3 g1R Bd7 Ne7 Bf4 c1B Bg2 Ra5 Nbd2 Nb5 Nc4 Bd2 Rd1 Bb4 Nfd2 Na6 b8R Re1 b7 Qb6 Rf1 Qg1 Rb1 Kg6 f7 Kg7 Bh1 Ng6 Bf3 Rc1 Rd1 Qf1 Be4 Nc3 Bh1 Rf5 Be4 Nc7 Bh1 Bfc5 Bd5 N7b5 f8B+ Kf6 Bg2 Na4 Bg7+ Kf7 Bd4 Bf8 Bf2 Kg7 Rc8 Bfc5 b8B Rd8 Ba7 Bf8 Rb8 Rc8 Bb7 Rc6 Ne4 Rb6 Rd3 Re1 Rdd1 Rc6 Ned2 Rcc5 Nb6 Rc2 Nbc4 Rb2+
3r4/3k1B2/1RrpNq2/b1RPp1nK/Np1pqb1n/8/2RQ3R/RR3n1b w - - 0 1 legal: proof: b4 c5 h4 a5 e4 g5 d4 gxh4 d5 f5 exf5 axb4 a3 bxa3 Be3 Bg7 Bd4 cxd4 Kd2 Bh6+ Ke1 Bf8 Ke2 b5 Kf3 e5 Kg4 a2 c4 h6 f4 d6 c5 b4 c6 h3 c7 h2 Bd3 Be7 Nc3 Ra6 Nf3 Nd7 f6 Nf8+ f5 Rc6 f7+ Kd7 f6 Ne6 f8R Ng5 f7 h5+ Kh4 Ba6 c8R Nh6 Bg6 Bd3 g4 Be4 Qd2 Bf6 Rhc1 h1N Na4 Ng3 Rcb1 Nf1 Rg8 Qe7 f8R Qe6 Rb8 Bd8 Bf7 Ba5 Rb6 Qf6 Rg6 Rg8 Rc8 Rd8 Rg8 Rc5 Rh8 Rc6 Ne1 Bh1 Ng2 Ne4+ g5 Nf5+ Kh3 h4 Kg4 h3 g6 h2 g7 Ng5 g8R Nh4 Nf4 Bg2 Ne6 h1Q Kh5 Be4 Rd1 Qg2 Rab1 a1B Rdc1 Bb2 Rc5 Bc1 Rg7 Qh1 Rhh7 Ngf3 Rg1 Ng5 Rc2 Qh3 Rh1 Qhf5 Rh2 Bh1 Ra1 Rc3 Rc5 Qe4 Rg7 Ngf3 Rg1 Ng5 Qe2 Bf4 Qd2 Ne3 Rgb1 Nf1 Rcb5 Rcc8 Rbc5 Rc6
4N1r1/3p1Q1N/p2nB1rp/1R3b2/qNq1bK1N/Prn3p1/3B4/b4NNk w - - 0 1 legal: proof: g4 e5 h4 g5 b4 gxh4 d4 f5 a3 c5 bxc5 exd4 e4 fxe4 Ra2 Qe7 Rb2 Qf6 Rb3 Qd8 Rg3 hxg3 Kd2 Ke7 f4 Kf6 c4 b5 f5 Kg5 f6 Kf4 f7 h6 g5 d3 g6 e3+ Ke1 d2+ Ke2 a6 c6 b4 c7 b3 g7 b2 c5 Nc6 Bh3 Rb8 Be6 Na5 c6 Nc4 Rh5 Ne7 g8N Nd5 Nf6 Rg8 Qb3 Bg7 f8N Nd6 N8h7 Bb7 c8N Qc7 Na7 Nc3+ Kd3 d1R+ Nd2 e2 Ne8 e1Q Rb5 Qc8 c7 b1B+ Qc2 Qe5 Nc6 Qh5 Nb4 Qh4 Ra5 Re1 Nf1+ Re3+ Kd2 Be4 Rb5 Rb6 Qa2 Bf5 Qc4+ Bbe4 Qb3 Na4 Qd5 Rb3 Ke2+ Kg4 Bd2 Ba1 Qc4 Nc3+ Ke3 Qb7 c8N Qc6 Qd5 Qc4 Ne7 Rc6 Ng6 Rb6 Ne2 Kh3 Ng1+ Kg2 Nef6 Qc8 Ne8 Kh1 Qc4 Qg4 Nh4 Qc6 Qd5 Qe2+ Kf4 Qec4 Rc5 Qa4 Rb5 Bh3 Qh5 Bhf5 Qf7 Nb7 Bd5 Rbg6 Be6 Nd6
1r6/2r4N/NRB1np1p/2bN1kpN/5N1b/r1np1b2/3PB2K/1RbB1b2 w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 b5 a4 bxa4 b5 Qf6 c5 Qb6 cxb6 Bc5 Bb2 Bd6 Bc1 Bf8 h4 h6 g4 Ne7 g5 Nf5 h5 Ne7 Bb2 Ba6 Bf6 Bb7 g6 Ng8 Bg5 Bc8 Qb3 Nf6 Qh3 hxg5 h6 Ng8 h7 Ba3 Qh5 Bf8 Qh6 gxh6 Kf2 Ke7 Kg2 Ke6 e4 d5 e5 c5 b7 a5 b6 f6 g7 c4 Ra3 c3 Ra1 d4 Rh4 a3 Be2 c2 Nf3 c1B Ng1 f3+ Kh2 a4 Nh3 f2 Nc3 f1B Nf4+ Kf5 e6 d3 e7 a2 e8B a3 Ncd5 Nd7 b8N Ra7 b7 Ne7 g8B Nc5 Rb1 a1B Nh5 a2 Nd7 Ne6 b8N Bb7 Rhb4 Bd4 Na6 a1R Rb6 Bf2 Bgf7 Rg8 h8N Ra3 Ng6 Bh4 Ngf4 Bc6 Bd1 Rc7 Be2 Ng6 Bd1 Bc5 Nf8 Ne7 Nh7 Rh8 Bd7 Rb8 Be2 Ba8 Ba4 Bb7 Bad1 Bc6 Be8 Ba8 Ndb4 Bf3 Bd7 Nd5 Bc6 Nc3 Nbd5 Rd8 R6b2 Rh8 Rb6 Rb8
2N2q1N/B1q1rB1B/1R2bk1n/3r4/p1B1n1b1/P1r1NbR1/1b5B/K4rrq w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 d5 gxf4 g5 e6 Qb3 exd5 Qf3 d4 Qg4 hxg4 Kd2 Ke7 Kc2 d5 h4 f5 b4 c5 Kb2 a5 e4 f3 e5 d3 b5 d4 b6 f2 b7 c3+ Ka3 d2 g6 d1B e6 c2 Kb2 f4 h5 d3 g7 c4 a3 a4 h6 f3 h7 c3+ Ka2 g3 Rh3 d2 Rh2 g2 Ba6 f1Q Rh6 f2 Nf3 g1R Rh1 Nd7 b8B Kf6 e7 Nc5 e8B Nh6 g8B Be6+ Bc4 Qc7 Nh4 Ra5 Ng6 Bdg4 Bef7 d1B Rh3 Bdf3 Rg3 Ne4 Bf4 c1R Nd2 c2 Ne7 Rd5 Nc8 Re1 Bd6 c1Q Ba7 Re3 Bf4 Rc3 Rb1 Bc5 Ka1 Be3 Rh3 Qce1 Bh2 Qd1 Rg3 Bf4 Nb3 Bc1 Nd2 Qde1 Rb6 Qd1 Bh5 Qde1 Bgf7 Re8 h8N Re7 Bhg6 Qg2 Ka2 f1R Ka1 Qef2 Bf5 Qh1 Bh7 Rd1 Nf1 Qfc5 Ne3 Rdf1 Rb2 Q5d6 Rb3 Qdd8 Rb1 Qf8 Rb6 Bb2+
Bb1r1N2/4rkb1/pnN5/2K1qqrr/P5bB/n2RN1Nn/b4R2/5RNq w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 e6 dxe6 g5 e5 Qe2 e4 Qg4 hxg4 Kf2 c5 b4 e5 a4 f5 h4 g3+ Ke2 g2 d4 e3 h5 c3 Kd3 a6 Kc4 c2 b5 f3 d5 e4 b6 e2 g6 e1N d6 e3 g7 f4 h6 e2 h7 f2 d7+ Kf7 b7 f3 Rh5 Qe8 d8R Nf6 g8N Bg4 Bg5 c1Q+ Nc3 Nd5 Rh1 Nf4 Bf6 Nc2 Bd4 e1R Nf6 Bg7 Nfd5 Nd7 b8N Nb6+ Kb3 c4+ Ka2 Na3 Nce2 c3 Kb3 c2 Kb4 Nh3 Rh2 Qe5 Bb2 Qh6 Kc5 c1B Ng3 Bf4 Bc4 f1B Nc6 f2 Bc3 Re3 Be1 Rb8 Bb3 Bc4 Bc2 f1Q Be4 Qhh5 Bf2 Qd3 Rf1 Ba2 Rd6 Rhd8 Bf3 Qdf5 h8N+ Kg8 Ng6 Kf7 Be1 Rh8 Be4 Rbd8 Nf8 Qh4 Bf2 Rh5 Bf3 Qef6 Rd7+ Re7 Be4 Be5 Ne3 Q6e6 Rd3 Bb8+ Bd5 Qe5 Nf3 g1R Be1 Nf4 Rhf2 Rg2 Ng1 Qh1 Bc3 Qf5 Bf6 Nh3 Bh4 Be2 Ne4 Rgg5 Ng3 Bg4 Na7 Bbe5 Ba8 Qef6 Nc6 Bb8+ Kb4 Nd5+ Kc5 Qc3+ Nc4 Qe5 Ne3 Nb6+
bR3b2/7k/bq1RB3/2qn1qnp/R1B2nrN/1N2r1r1/r2n3P/1KBR2R1 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nc3 g4 Qd3 exf6 Qh3 f5 Qf3 gxf3 Nb1 f4 Kd1 d5 a4 h5 e4 b5 c4 f5 Kc2 Kf7 g4 Kg7 g5 b3+ Kb2 b4 e5 f2 a5 d3 a6 d2 e6 d1B g6 d4 e7 f3 e8R d3 a7 f4 c5 d2 c6 Qa5 c7 Ba6 c8R Nf6 Ra3 Ne4 Be2 f1Q Re5 f2 Re6 f3 Ra1 Nd7 Ree8 Ndf6 Re5 Nh7 Rc4 Nhg5 Re8 Qc5 Nh3 Rg8 Rb8 Bc2 Na3 d1R Nf4 Rd3 Rg1 Re3 Rc3 Kh6 g7 Kh7 Rd3 Qh3 Rg4 f1R Rg3 f2 Ng2 Rg1 Rc3 f1N Rb5 Qhf5 Rf3 Nfg3 Bc4 Ne2 Rf1 Nf4 Nh4 Rg4 Nb1 Bd1 Rba5 Bf3 Nd2 Bg2 Kb1 b2 Rd1 Rgg3 Ka2 b1N Ra4 b3+ Kb2 Rg4 Rd3 Nbc3 Rd6 Ncd5 Kb1 b2 Nb3 Rb8 a8B Bf3 Bb7 Ra8 Rg1 Rg3 Bc8 Ra7 Kc2 Bg2 Be6 b1Q+ Kd1 Qb2 Rb1 Qbf6 Kc2 Qd8 Rba1 Qdb6 Kb1 Bc8 Rb4 Ra2 Ra4 Ba6 Rd1 Rh8 g8R Bh1 Rg6 Rg8 Rd8 Rg7 Rb8 Nc7 Rg1 Bg2 Bf7 Nge6 Bb2 Nd2+ Kc1 Ba8 Ba3 Ne4 Bb2 Nd4 Rd6 Nf3 Be6 R7g4 Kc2 Nfg5 Rad1 Ncd5 Kb1 Bc6 Ba3 Ba8 Bc1 Nd2+
2N1R1q1/NK6/N2Brrpn/1R2qBn1/k1B3P1/3B2bq/3n2qn/r3Bb1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 f5 cxd4 f6 h4 Qd2 exf6 Qc3 f5 Qf3 f4 Qg3 hxg3 Kd2 d5 Kd3 Kd7 a4 Kc6 e4 b5 c4 f5 h4 g2 h5 g6 h6 f3 c5 f2 e5 b3 a5 f4 a6 b2 e6 b4 h7 Kb5 a7 b3 e7 f3 e8N Bd6 c6 Nd7 c7 Nc5+ Kd2+ d3 Ke3 d4+ Kd2 Nh6 Ra6 Bg3 Ne2 g1Q Nf4 Qg2 Ne6 Rf8 h8B Rf6 Rb6+ Ka4 Na3 b1R Nb5 b2 Ned6 Ba6 c8B Qg8 Nec7 Ra1 Bf5 Ne6 Nc8 Ng5 Rb8 b1Q Ba3 Qbb3 Rh5 Qbd5 Bg7 Qe5 Bd6 Re1 Be2 f1Q Bgf8 f2 Bb4 Qh3 Bfd6 Qfg2 Bc3 Nhf7 Rh8 Nh6 Rb6 Rh1 Ba5 Rb8 a8B Rb7 Nba7 f1N+ Kc1 d2+ Kc2 d1R Be1 Re6 Rb5 Nd2 Kd3 Rb6 Bd5 Ra1 Bc4 Rf6 Be7 Rbe6 Bd6 Qh7 Re8 Qg8 Bd5 Nf1 Kc4 d3 Kc5 d2 Kc6 d1N Bde4 Nc3 Bc4 Nh2 Kb6 Nb1 Bed3 Bb7 Na6 Nd2 Kc7 Bf3 Kb6 Be2 Kc7 Bf1 Kb6 Nhf3 Kb7 Nh2+
2nn4/rq5n/1kn1n3/bNRbrp1N/1b1p1NRq/B2N1PR1/4q1B1/3N1K2 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Bd2 e4 Be3 hxg6 Qd3 exd3 Bf4 g5 Bc1 g4 h4 d5 e4 Kd7 c4 Kc7 a4 g5 f3 f5 h5 b5 c5 b3 a5 b2 c6 g3 e5 d2+ Ke2 d1N h6 d3+ Ke1 g4 a6 d2+ Ke2 g2 a7 g3 h7 b4 e6 b3 e7 Nf6 e8N+ Kb6 c7 Bb4 Rh5 Nc3+ Kd3 d1Q+ Nd2 b1Q+ Ke3 b2 Rg5 Nc6 Nd6 Be6 c8R Na2 Rg6 Re8 h8N Nh7 N2e4 Qh4 Nb5 Nd8 Nh3 g1N Nhf2 g2 Rc7 Nh3 Nd3 g1B+ Nef2 Nf4 Rg4 Qdc2 Rc5 Qe2+ Kd4 Bf7 Bg2 Re5 Ng6 Ba5 Rg3 Nb4 Ra4 Nfe6+ Kc3 Bg8 Ngf4 Nbc6+ Rb4 Bf7 Nd1 Bf2 Nh5 Be1+ Kb3 Bd2 Rbg4 d4 Kc4 Bdb4 Nf2 Qa1 Nd1 b1N Ba3 Nc3 Rh3 Rb8 Rhg3 Qab2 a8N+ Kb7 Rg7 Na4 Nac7 Ra8 Nd5 Ra7 Ndf4 Kb6 R7g5 Nc3 Rg7 Nd5 R7g4 Nde7 Bh3 Qh2 Bg2 Nc8 Ne1 Rd5 Kd3 Qb1+ Ke2 Re5+ Kf1 Qb2 Ned3 Qb3 Bh3 Qe2+ Kg1 Qd5 Bf1 Qd7 Bg2 Qb7 Bc1 Nc7 Bb2 Bd5 Ba3 Qe3+ Kf1 Nce6 Bb2 Qe4 Ba3 Qe2+
bN3b2/rq1r2k1/n1b2Rp1/1R6/n1B4q/K1N1BnP1/RRqp3B/2b2Rq1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Kd2 h3 Ke1 exf6 Qd3 f5 Qf3 f4 Qg2 hxg2 Kd2 d5 a4 f5 h4 Kf7 e4 b5 c4 g6 Kc2 f3 Kb3 d3 h5 d4 h6 d2 c5 d1Q+ Ka2 f2 h7 b3+ Ka3 d3 a5 f4 a6 b4+ Kb2 f3 c6 Qh4 a7 Bb7 c7 Bc6 c8R Nh6 e5 Ng4 e6+ Kg7 e7 Nh2 e8R Na6 Ne2 g1B Bh3 f1Q Re5 f2 Rb8 Nf3 Be3 d2 Ra2 Qc2+ Ka1 Qe1 Nd4 f1B Reb5 Bg2 Be6 Bf2 Rb2 Qg1 R8b6 Rd8 a8R Rd7 Ra7 Ba8 Nc6 Rg8 Bf4 Bd4 Bc4 Rh8 Nb8 Rg8 Bf1 Bf6 Nc3 Be5 Rb1 b2+ Ka2 Rh8 Rd6 b3+ Ka3 Bd4 Be3 Bf6 Rd1 b1Q Bc4 b2 Rf1 Ne5 Rab7 Bf3 Na4 Rf7 Rb3 Qg2 Be2 Bc6 Rfg1 Qf2 Rc1 Nf3 Rhf1 Qg1 Bc4 Rc7 R7b6 Ra7 R6b4 Bd4 Rf6 Rg8 Rce1 Be7 Rd1 Rd8 Rc1 Qf5 Rc2 Rd6 Rb6 Bf8 R6b4 Qc8 Rb5 Rdd7+ R3b4 Qgh1 Bg1 Qb7 Bh2 Qg1 h8B+ Kh7 Rff5 Qc1 Bg7 Bf6 Bh6 b1N+ Kb3 Bb2 Be3 Nc3 Rf6 Ba3 Ra2 Bb2 Be2 Kg7 Bc4 Nd5 Nc3 Nb6 Bc5 Na4 Bd4 Ba1 Be3 Qc2+ Ka3 N6c5 Rb3 Bb2+ Kb4 Bc1 Rbb2 Qh3 Ka3 Qh4 Bf2 Na6+ Bc5 Nb4 Be3 Na6+
1bRK1n2/2pQ2B1/2n3r1/1qr1rNBb/2P1B1k1/1p1B2nR/3b2B1/1B1qrn2 w - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 d4 axb4 Nd2 e5 Ne4 exd4 g5 h6 Nf2 h5 Ng4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 d5 h4 f3 a4 f2 c4 d3 e3 d2 a5 b3 g6 b2 a6 b1Q+ Qb3 d1R a7 d4 g7 d3 h5 g3 h6 g2 h7 d2 e4+ Kg4 e5 f5 e6 f4 e7 f3 e8B Ne7 g8B Nec6 Bg6 Bb4 Rh6 Re1 Qa2 d1R B6f7 Re5+ Bd5 Nd7 Bg5 Bd2+ Qb3 Nf8 Bd3 f1N Ne2 g1B Rh3 f2 Nd4 Ng3 Nf5 f1N Bf7 b6 Bg6 Rg8 h8B Rde1 Bg7 Bd7 Ka6 b5 Kb7 b4 B5e4 Be8 Qa4 b3 Ra3 Qd5 Ra2 Rd8 a8B Qd1 Qb5 Rd6 Kc8 Ba7 Bb7 Bb8 Ra8 Bf7 Bh7 Rg6 Bg2 Nb4 Qd7 Qb5 Bbe4 Rc6 Kd8 Rcc5 Bb1 Bh5 Bed3 Ba7 Rc8 Bb8 Bh8 Rg6 Bg7 Be3 Bg8 Bc1 B8d5 Bd2 B5e4 Nc6+
1q3r1R/1r1NK2q/2k5/1rp2RB1/1RB1b1R1/1n1rb1B1/n1PNp3/nb2R2n w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Ng1 axb6 Qf3 b5 Qh3 b4 Qg3 hxg3 Ke2 Kd7 Ke3 c5 Kf4 e5+ Kf5 b5 a4 g5 f4 b3 d4 e3 h4 e4 a5 b4 h5 g2 a6 b2 a7 g3 d5 b3 d6 g4 h6 e2 h7 e1R Ra3 e3 Ke5 e2 f5 Nh6 f6 Na6 f7 Nb4 Nf3 g1Q Nh4 g2 Ng6 g3 Be3 Na2 Bg5 Bb7 Rh4 Rb8 a8R Ng4+ Kf5 Qh1 R8a4 g1N Rc4 g2 Bf4 Kc6 Ke6 Rd1 d7 Nf2 Bg3 Nf3 Rh6 g1N Bd6 Rd3 Bg3 Nd2 Rhh4 Bh6 f8R Ngf3 Rf5 Be3 Bg2 Rf8 h8R Qc8 Rhd4 Qh7 Rb4 Nh1 Rg4 Ba8 Raa4 Rb7 Ra7 Qb8 d8B Rb5 Bg5 Bb7 Bh3 Ba8 Raf7 Nd4+ Ke7 Bb7 Rf1 Ba8 Re1 Bb7 Na3 b1R Nc4 b2 Nge5+ Kc7 Bh2 N4b3 Bg3 Be4 Nd7+ Kc6 Bg2 Na1 Bf3 Ndb3 Nd2 Bd5 Be4 Rb7 Bf5 Be4 Be6 Rd1 Bc4 b1B Ke6 Na5 Rf5 Rb3 Ra4 R3b5 Rb4 N5b3 Bd3 Qg7 Bc4 Qg6+ Ke7 Qg8 Nf1 Rd3 Nd2 Qh7+
kn5r/2rR2b1/2bK3p/3B1NrR/3qb1bq/1qB2Rnq/3pBB1P/2B3N1 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 g5 e5 g6 fxg6 d5 g5 Qd3 g4 Qd4 exd4 Kd2 Kd7 a4 b5 f4 c5 e4 Kc7 a5 Kb7 f5 g5 f6 h6 d6 d3 Ke3 b3 d7 b4 f7 d2 e5 b2 Ke4 c3 Kd5 b3 e6 g3 e7 c4 e8B g2 Nh3 g1Q Na3 b1B Be2 c2 Nf2 b2 Bd1 g4 Ke6 c3 Nb5 g3 Nd4 g2 Ke5 Ra7 a6+ Ka8 Nh3 Nf6 Be2 Nh5 Ra5 Ng3 Nf5 Bg7+ Kd6 Rc7 f8B Qh4 Bf7 Qgd4+ Bd5+ Bb7 d8B g1R a7 Bc6 Bfe7 Ba2 Rc5 b1B Bf6 Bc4 Bde7 Ba6 Ra5 Bc8 Bd8 Rg2 Rf1 Be6 Rf3 Rg1 Ne7 Bg4 Nf5 Rg2 Ng1 Qh3 Ba3 c1Q Bb2 Qc2 Bc1 Qb3 Be5 c2 Bh4 Nh1 Bf2 Ng3 Rb5 Qda4 Bc3 Qd4 B1b2 c1Q Rc5 Qcd1 Bc1 Be4 Ra5 Kb7 a8R Qbc4 Rc5 Qdb3 Ra6 Qca4 Rb6+ Ka8 Rb7 Qe3 Rcb5 Qad4 Rc5 Qg5 Rcb5 Qgh4 Rc5 Rcc8 Rd7 Rc7 Ne3 Be6 Rb5 Nh5 Rc5 Qda4 Bdc4 Rg6 Re5 Ng3 Rh5 Rg5 Bd5 Bg4 Nf5 Qd4
1qN2Nbb/1qR2n1r/rrr2p2/2k2qRR/3pKR2/1n2p3/1r1R1PBN/4B3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 dxe6 d5 e5 Qd3 e4 Qd4 cxd4 Kd2 Kd7 a4 Kd6 g4 h5 c4 e5 a5 b5 a6 f6 a7 e3+ Kd3 e2 g5 e1Q g6 h3 g7 h4 Nc3 h2 Ra4 b3 Bg5 b4 Bd2 h3 Be2 b2 Bd1 b1R Ra3 b3 Nce2 b2 Nf4 Na6 Ne6 Nh6 g8R Rh7 Bf3 Nf7 Bg2 Bg7 Nf8 Bh8 Nf3 Kc5 d6 Be6 d7 Qb8 d8R Rc1 Rg3 b1R Rd7 Rb2 Rg5 Qd1 Ke4 Qc2+ Rd3 Qb1 Re1 h1R Nh2 Rc3 Rb7 Qc2 Re3 Rhb1 Be1 Rb6 Rf3 R1b2 Rf4 Bd5+ Kf5 e4 Re7 e3 Rc7+ Rc6 Rh5 Rcb3 Rg5 Rb6 Rh5 Qd1 Rd2 Qf3 Rg5 Nd8 Rh5 Bg8 Rg5 Nf7 Rh5 Kb4 c5 Qg4+ Ke4 Kc4 Nf1 h2 Rg5 h1Q Nh2 Nb4 Rh5 Nc2 Rg5 Na1 Rh5 Rd6 c6 Nb3 Rg5 Kb4 Rh5 Qf1 Rg5 Qb5 Rh5 Qb7 Rg5 Rc8 a8R Qh3 Ra6 Ra8 Ra5 Raa6 Rc8 Qb8 c7 Qbd7 Rh5 Rdc6 Rag5 Kc4 Re8 Kb4 c8N Qdb7 Re7 Qf3+ Kf5 Kc5 Rc7 Qh3+ Ke4+ Qf5+
2qq4/2B3N1/1rBp1b1R/3PB1N1/N3npKp/1b6/r1br1qk1/RNnNr3 w - - 0 1 legal: proof: b4 e5 f4 exf4 h4 c5 a4 b5 c3 bxa4 b5 g5 Qb3 gxh4 Qb4 cxb4 Kf2 Ke7 Kf3 Kd6 d4 Kd5 g4 f5 b6 h5 b7 a5 g5 h3 e3 a3 g6 d6 g7 a2 Bb5 h4 Bd3 a4 Bf1 h2 Nh3 b3 Ng1 b2 Be2 a3 Bd2 Be6 Nh3 Nd7 b8B Nc5 Re1 h1R Bc7 Rh2 Nf2 Be7 Bb5 Nf6 g8N Nd3 Nh6 Ne4 Nd1 Nc1 Nf7 Bf6 Ng5 Ra6 Ba4 Rb6 Rf1 Re8 Bc6+ Kc4 Be1 Kd3 c4 Rd2 c5 Bb3 d5 Re5 Bg3 Re8 Nbc3 b1B Re1 B1c2 Nb1 Nc3 e4 Kd4 e5 Ne4 Re2 Re7 Kg2 f3+ Kh3 f2 e6 f1Q+ Rg2 Re8 e7 Qf2 Be5+ Kd3 Rg1 f4 Kg4 Ke2 Rg3 Kf1 Rg2 Rh8 e8N Rg8 Ng7 Re8 Ba4 Re6 c6 Qc8 Bb8 Qd8 c7 Re7 Rg3 Re6 Re3 Kg2 c8N Re7 Bc6 Ra7 Bc7 Ra4 Nbc3 Ra7 Rb1 a1Q Re2 Qb2 Ra1 a2 Nb1 Qc3 Re1 Rb4 Nb6 Qcc5 Na4 Rb6 Bb8 Re7 Bc7 Qc4 Bd4 Qa6 Be5 Qac8+ Kh5 Re6 Kg4 Ng3 Bb2 Bc3 Re2 Re7+ Re6 Be5 Bd7 Bc3 Rh6 Bf6 Bc3 Re1 Be5 Qa8 Bc6 Ne4 Nbc3 Qab8 Rb1 a1R Rb2 Bd3 Rb1 Raa2 Ra1 Bdc2 Nb1 Qbc8+
Br5k/2Kq1B2/B5np/1Q3Np1/2n2B2/1n1b1R1r/rbp3Pq/1Br1qBN1 w - - 0 1 illegal: Other
2B5/qp1Q4/1BR2br1/q1Rpbp1R/1R1n1kb1/R1nrr3/R2P1K2/2N1n2n w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Na3 c4 Nb5 hxg6 Nd4 g5 Nb3 cxb3 Ba3 g4 Bb2 Bd6 Bc1 Bf8 e4 Ke7 c4 Ke6 a4 Ke5 h4 d5 c5 g5 a5 g3 c6 g2 c7 f3 h5 f2+ Ke2 b2 h6 b1R a6 g4 h7 b3 a7 g3 Ra3 b2 Rh5+ Kf4 e5 Bg4+ Nf3 g1Q c8R f5 e6 g2 e7 Bg7 e8R Na6 Rc6 Qa5 Rg6 Nb4 Rc6 Nd3 Re5 Re8 a8R Bf6 Re3 Re4 Qa4 Ne7 Ra7 Rc8 h8R Rg8 Qb5 Rg7 Rhc8 Ne1 Rc5 Re6 Qd7 Rg6 R8c6 Ra1 Re5 b1N Bb2 Ra2 Ba1 Rb2 Ree3 Rb3 Bd4 Rd3 Raa6 Be5 Rab6 Bf6 Ra2 Re4 Rb4 Re5 Kd1 Re6 Be2 f1N Ne5 Qf2 Reh3 g1B Rg3 Bh2 Rgh3 Rf3 Bb5 Ng3 Ba4 Qe3 Bb5 Qea3 Ba4 Qa7 Bb5 Q3a5 Nd3+ Ke4 Nc1 Kf4 Ba4 Ree3 Bb5 Nc8 Ba4 Nd6 Bb5 Rd3 Ba4 Nb5 Bf2+ Ne4 Ke2 Rfe3+ Kf1 Nd4 Bg1 Nec3 Kf2 Ne2 Qc8 Re5 Kf1 Rc3 Rcb5 Ke4 Rcc4 Bf4 Be3 Rb3 Rf3 Ng3+ Kf2 Re6 Rcc2 Ke5 Rc3 Nc6 Bb6 Nd4 Rc7 Ke4 Rbc5 Bd6 Rd3 Kf4 Bd7 Re3 R7c6 Bde5 Qc7 Rc3 Bc8 Ra3 Rdc3 Rb3 Qd7 Ra3 Rcc2 Rad3 Ra3 Nc3 Rca2 Nh1+
KB3qq1/rN1r1kp1/3R4/1Bp1p3/bn2Rq2/N2pR1br/3nP2B/4Rn1R w - - 0 1 illegal: No possible last move, all moves rejected
K1qk1n2/1R1bRpRp/pRr1Rr2/4q1nr/PR2B3/2b2bp1/2r4N/5Q1N w - - 0 1 illegal: No proof kernel
1BB1q1B1/3RnRN1/ppb5/2n2bn1/1p1K2r1/RbN2B2/PbB3qp/5rk1 w - - 0 1 legal: proof: e4 c5 d4 f5 h4 e5 b4 exd4 e5 cxb4 Qd3 g5 Qe3 gxh4 Qe4 fxe4 Ke2 Kf7 g4 Ke6 c4 d5 f4 h5 c5 e3 Kd3 h3 g5 Kf5 g6 Kg4 c6 Kg3 e6 Kf2 g7 a6 f5 e2 f6 e1N+ Kd2 h2 f7 d3 c7 h4 e7 b6 e8B h3 Ba4 d4 Bb5 Bf5 c8B Qe8 Ne2 Ne7 g8B Nf3+ Kd1 d2 Bd3 Nd7 Kc2 Ng5 Kb3 d1B+ Kc4 Nc5 Ng3 Bg7 f8R Ba4 Nc3 Bc6 Bc2 d3 Nh5 d2 Bg2 d1B Rf7 Bf6 Rg1 h1Q Bf4 h2 Bf3 Qg2 Ng7 Rh4 Rc1 Bd4 Bb8 Rg4 Rb1 Ra7 Rb3 Ra8 Re1 Bf6+ Re4 Kg1 Ra3 Bd4 Re5 Ra7 Rd5 Rd7 Ne4 Bb2 Rd2 Rd6 Rd4 Rf6 Nc3 Nce4 Rd7 Nc5+ Bce4 Bb3+ Kd4 Rg3 Bc2 Rg4+ Ke3 Bfe4 Kd4 Rff4 Be2 Rf1 Bf3 Bf5+
B2r4/N2q1b1q/Rr2N1pp/K2N2nP/1Rp5/n1B3bp/Nb2p3/N2R2nk w - - 0 1 illegal: No proof kernel
1R2K2b/rp3p1R/1NR1N3/n2B4/rk2qp1p/3RRq2/1P1pb1b1/1r2nRQ1 w - - 0 1 illegal: No proof kernel
5bkn/pN2r3/3QbR1p/1RbRKpqP/3R1rRp/n2p4/1p3B2/3r2NR w - - 0 1 illegal: No proof kernel
r2N3N/B3n2N/P3Bq2/b3r1r1/1r1KB1N1/qR6/2p1b1p1/rR1Rr1k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Bh3 exf4 Bg2 Na6 Bf1 Nb8 d4 hxg4 a4 c5 Qb3 c4 Qg3 Na6 Qa3 Nc5 dxc5 bxa3 Kd2 Ke7 Kc3 Kf6 h4 Ke5 e4 b5 d6 g5 d7 f5 c6 g3 c7 f3 h5 f4 a5 f2 h6 b4+ Kc2 Kd4 a6 b3+ Kd2 f3 e5 b2 e6 g4 e7 a2 e8R c3+ Kc2 g2 h7 g3 Be2 f1Q Bc4 f2 Re2 Bb4 Nh3 g1R Bd5 Ne7 Re3 Ba5 Ng5 Qh3 Na3 b1R Be4 f1R Nc4 Re1 Ne5 Re8 h8N Rb4 Rb1 a1R Ng4 Bb7 c8B Bc6 Bd5 Bb5 Nh7 Be2 Be4 Qb6 d8N Qf6 Rf3 Rg2 Bf4 Rgg1 Bb8 Rg2 Be6 Rgg1 Rf4 Rg2 Ne5 Ke3 Rh4 Kf2 Ba7+ Rd4 Kb3 c2 Rh5 Rgg1 Ng4+ Kf1 Re5 Rb4+ Kc3 g2+ Kd2 Rg8 Rb5 Qa3 Rb3 Rg5 Ke3 Rad1 Rb6 Rdd5 Rd6 Rde5 Rd1 Rbb5 Kd4 Rbb8 Rhh3 Rh1 Rbb1 Kg1 Rbc1 Rb1 Rc3 Ra1 Rb1 Rh3 Rcb3 Rc3 Ndf7 Rc7 Nd8 Rb7 B6f5 Rbb5 Be6 Rb4+
nbr2qR1/kn4B1/5qbB/N2K1nb1/PR3p1B/N1N4B/2q2n2/1r2n2R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Qc2 exf6 Qb2 f5 Qa3 f4 Qg3 fxg3 a4 Kd7 e4 b5 Ke2 g5 Ke3 c5 d4 Kc7 h4 Kb6 e5 f5 d6 f4+ Ke4 g4 d5 b3 d7 c4 d6 b2 h5 c3 e6 c2 e7 b4 e8R b3 h6 Be7 h7 Bg5 Ke5 Ka7 Rh2 Na6 Ne2 g1B Nd4 g2 Rh5 g3 Rh6 Rb8 Rf6 Ne7 Ke4 Nc7 Ba6 Nf5 Na3 b1Q Rg6 b2 Bd3 Qf6 d8B Na8 Bd2 c1N d7 Qc2 Re6 b1Q Rg8 Nb3 Bc3 Nc5+ Kd5 Nb7 Bf1 Qb4 Rb6 Qbf8 Ne2 Be3 Rab1 g1N Bh3 g2 R6b4 Nf3 Rh1 g1N Ba1 Ne1 Nc3 Bb6 Be7 Bc7 d8N Bd7 Bb2 Be8 Nc6+ Ka6 Bd8 Bg6 Na5 Ka7 Ba1 Qa6 Bf6 Rc8 Bg7 Qaf6 Bh6 Bb8 Ne2 Qa6 Bf6 Qb6 Nc3 Qa6 Bg2 Nh3 Bfg7 Nf2 Bh3 Be7 Bf6 Bd8 Bh4 Bg5 Rg7 Rg8 h8B Qb6 Rh7 Qbf6 B8g7 Rc6 Rh8 Rb6 Rd4 Rb1 Rc4 Q8e7 Rb4 Rc8 Rg8 Qef8
3qB2R/2R1r1k1/Kb1P1b1q/B1n1pRN1/n3Br1N/2bq3N/3b2r1/5Bb1 w - - 0 1 illegal: No possible last move
1n4K1/4NBN1/1brbnBn1/Rn4p1/b1PnR2N/1kq3q1/r4b2/B4B1R w - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 Kd2 Na6 Kd3 Ke7 Ke4 Kd6 Kf5 Kd5 b4 Kc4 e4+ d3 h4 d5+ Ke5 f5 c3 g5 h5 f4 h6 d4 b6 f3 h7 f2 b7 Kb3 b8R d2 b5 d1Q b6 d3 c4 d2 b7 Qc2 Rh4 d1N Ra2 Ne7 Kf6 Qdd3 Kf7 Nc3 e5 Bd7 Be2 f1N e6 Nd2 Rh5 Nde4 Nf3 g1B Rd8 g2 b8N Bb6 Na3 g1B Re8 Bgf2 Bb2 Nec5 Nc6 Nb8 Bf1 a5 Nb5 a4 Nd6 a3 Nf5 Ra4 Ra1 a2 Rh1 Qd6 Ng7 Qg3 Nh4 Qd2 Re1 a1N Re5 Nc2 Ba1 Ra2 Re4 Nd4 Rd8 Nba6 Ra8 Nb8 Ra5 Qc2 Ne5 Ba4 Nc6 Ned5 e7 Ncb5 e8B Qcc3 Nhf5 Nf4 Nh4 Bd6 Ne7 Bdc7 Bd7 Rd8 Be6 Rd6 Kg8 Rc6 Bf7 Nce6 h8B Kc2 Ne8 Kb3 Bf6 Ng6 Ng7 Bd6
n2nn1K1/R2B3n/1b1nn1rR/n2nbRR1/pkNB2P1/N3q3/3N4/4Bb2 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 e5 f3 b5 Nd2 bxa4 Nb1 g5 Qd2 e4 Qe3 Ra6 Qf4 gxf4 Rh2 Rg6 Rh1 Rg5 hxg5 exf3 Kd2 a3 Kd3 Ke7 Ke4 Kd6 Kf5 Kc5 c4 h5 e4 d5+ Ke5 f5 g6 a4 g7 a2 b3 h4 Bg2 f2 Bf3 f1N Be3 h3 Bd1 f3 Bf4 d3 Bg5 d4 Bf6 d2 Bh4 h2 Bg3 f4 Bc2 d1N Nd2 d3 Nb1 d2 Ne2 f2 Ng1 f3 Nc3 Nb2 Bh4 d1N Nd5 Nde3 Nb6 Nf5 Nd7+ Kb4 Ke6 Nd4+ Kf7 Ng3 e5 f1N c5 f2 c6 Nh5 c7 Bc5 e6 Ne3 e7 f1N e8N Nec4 Ne5 Ngf6 g8R Rh6 Nd6 Ng7 Ngf3 Ba6 c8R Qb6 Rc7 Nbc6 Bf5 Nh7 Bd7 N4a5 Nb5 Nde6 Nd2 Nbc4 Na3 Ne8 Ra7 Nfe3 Rg5 Nd5 Kg8 Ncd8 Raf1 a1B Be1 Bb2 Rf6 Bf2 Rf1 h1N Rfg6 Bc5 Rff5 Nf2 Rgf6 Ne4 Rfg6 Kc3 b4 Ne4d6 b5 Kb4 Rgf6 Be3 Rfg6 Qd4 b6 Bc3 b7 Ncb6 Rgf6 Bf1 Nec4 Na8 Rfg6 Qe4 Rgf6 Bb6 b8B Nc8 Bbg3 Ncd6 Bgf2 Be5 Bd4 Qe3 Rf7 Nhf8 Rh7 Rf6 Rh3 Nh7 Rh6 Rg6+
2n2b1k/4n3/1n1b3N/BBb1RBN1/2rqpB1p/r4nq1/4PR2/1RN1n2K w - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 f5 a4 fxg4 Qd3 a5 Qa3 axb4 h3 bxa3 Rh2 g5 Rg2 g3 Nd2 g4 Ne4 b6 Nd2 Bb7 Rh2 g2 Rh1 g3 Nb1 Bf3 Bd2 Na6 Bc1 Bg4 hxg4 Nb8 c4 Kf7 f4 Kg7 f5 e5 a5 h5 c5 d5 c6 a2 c7 b5 c8R e4 g5 d3 g6 d2+ Kd1 b4 a6 d4 a7 h4 Rc5 b3 Rh3 b2 Nc3 b1Q Rc8 Ne7 Rc7 Qd3 Nf3 g1B Rc5 g2 Re5 Nbc6 Rh2 Nc8 Rb1 a1B Na2 N6e7 Ng5 Qg3 f6+ Kg8 g7 Rh5 Kc2 d1N Kd2 Nf2 Ke1 d3 Bf4 Qd4 Nc1 Bb2 Nf3 Kh7 g8N Kh8 f7 Ba3 Nh6 Rf5 Ng5 Bd6 Be3 Rf3 Bf4 Rb8 a8B Rb4 Bb7 Rc4 Ba6 Bc5 Rh1 Bh2 Bb5 g1N Bh3 d2+ Kf1 Ra3 Bf5 Nf3 Rg1 d1N Rg2 Nd3 Rf2 Bg7 f8B Nde1 Be8 Nc3 Bb5 Ng8 Bd6 Nd5 Bc7 Bgf8 Bd8 Nge7 Ba5 Ndb6 Nh3 Qg6 Ng5 Nc2 Kg2 Nce1+ Kh1 Qg7 Nh3 Qg3 Ng5 Bg1 Rg2 Bd6 Rh2 Qd3 Rg2 Bgc5 Rf2 Qd4
R2b3R/R2r1b1n/1Np4r/1P1Br1p1/1Nn3bq/1kq5/3b1NB1/b1B2B1K w - - 0 1 legal: proof: c4 g5 f4 d5 h4 dxc4 a4 b5 axb5 Ba6 f5 Bc8 f6 exf6 g4 Ba3 Qc2 Be7 Qg6 gxh4 g5 Bb4 Qf5 Be7 g6 Bf8 Qg5 fxg5 Kf2 Ke7 Kg2 Ke6 d4 Kd5 b4 f5 b6 a5 e3 h5 b5 f4 b7 f3+ Kh2 c3 g7 h3 Bb2 f2 Bd3 f1B Ba3 h4 Nf3 c2 Bf5 Kc4 d5 c1B d6 c6 d7 a4 e4 Rh7 e5 Nf6 e6 Qa5 d8N Bd2 g8B Qc3 e7+ Be6 e8B Bf7 Ne6 Kb3 Bc1 a3 Bd3 a2 Na3 Be7 Ne1 Bd8 Nf8 Nbd7 b8R Ne5 Nd7 Nc4 Nac2 Ra7 Kg1 Rh6 Nb4 Nh7 Nb6 Rd7 Ra8 Re6 Be4 Re5 Ned3 Bg2 Bf3 Bf1 Bg2 h2+ Kf2 h3 Kg3 Bd5 Bh5 Be6 Be2 Bf7 Rg1 h1R Kf3 Be8 Bd5 h2 Kg3 Bf7 Kf3 Be3 Nf2 Bd2+ Bd3 Be2+ Kg3 Bg4 Re1 Bh3 Re4 Rf1 Rh4 h1Q Rh5 Rd1 Ra7 Qe1 Kh2 Qe4 Bdf1 Qh4 Kh1 Rde1 Rh6 Re6 Rg6 R1e5 Rg8 Rh6 Rh8 Qb2 Rb1 a1B Ra8 Kc3 Ra7 Qc2 Rb2 Qd3 Rba2 Kb3 Ra8 Qc3 R2a7 Bg4+
NRq5/1BR1p3/BK1nn3/3RnNBb/2pnbPr1/B1b4n/3r4/2b2Nk1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 Qb3 dxc4 axb5 f5 b6 fxe4 b5 Qd7 Qa4 Qd8 Qb4 axb4 d4 c3 Ke2 Kf7 Ke3 Kf6 g4 Kg5 b7 h5 d5 c5 f3 h3 d6 Kh4 g5 Kg3 g6 b3 f4 c2 d7 b2 b6 c4 Kd4 Kf2 Kc5 h4 g7 e3 Na3 b1B Nf3 h2 Nd2 e2 Bg2 e1N Bd5 h3 Nb5 Ra2 Bb2 c1B Be4 Na6+ Kc6 Nc2 b8B Nh6 g8B Nf7 b7 Rh4 B8e5 Bg7 b8R Nd6 Bgd5 Nc7 Rd1 h1N Nf1 h2 Nd4 Kg1 Bf6 Nf2 Rd2 h1N Bg5 Qg8 d8N Bg4 Nf5 Nd3 Kb6 Bh5 Ne6 Qc8 Bc6 Bh8 Bb5 Bc3 Ba8 Ne5 Rd5 Nf2 Bac6 Na6 Nc7 Rg4 Na8 Nc7 Rd4 Ra3 Rd5 Ne6 Ra2 Rb3 Ra7 Nh3 Ba3 Rb2 Rc7 Ncd4 Bb7 Rd2 B5a6 Be4
7n/b1p2BrB/n2BN1N1/rbrN1K2/6P1/R2Rpk2/r1rR1q1q/4rB2 w - - 0 1 legal: proof: c4 a5 e4 f5 d4 g5 b4 axb4 h4 gxh4 Qf3 d5 cxd5 e5 Qg4 exd4 e5 Nf6 Qf4 Ng8 Qe4 fxe4 Ke2 Kf7 f4 Kg6 g4 h5 a4 b5 a5 e3 Kd3 b3 Ke4 b4 f5+ Kg5 e6 d3 f6 h3 a6 d2 a7 d1R f7 b2 d6 b3 e7 h2 e8B h4 d7 h3 Bd3 Qf6 d8R Na6 Nd2 b1R Ra3 b2 Ra2 Re1 Bdb5 Rh7 Ra4 Bc5 f8N Rg7 Bbd7 Nh6 Nb3 Nf7 Bf5 Ra1 Nd4 b1R Nge2 Bd7 Ng6 Bb5 Ba3 Ra2 Nef4 Rbb2 Nd5 Nh8 Bf7 Rc2 Rg1 h1R Rg2 h2 Rd2 Bb6 Bd6 Rhf1 Ra3 h1Q+ Rg2 Qh2 Rd2 Rc5 Rdd3 Rff2 Ne6+ Kh6 Rd7 Rfc2 Rd2 Qfh4 Rd8 Q4f2 Rdd3 Rb8 a8B Ba7 Bb7 Ra8 Rd2 Be8 Bc6 Bd7 Bb5 Bc6 Bf1 Bb5 Ngf4 Rcb2 Bh7 Rbc2 Nf8 Kg5 N8e6+ Kh4 Kf5 Kg3 Rdd3 Kf3 Ng6 Ba4 Rb8 Bd7 Rb1 Ba4 Rbd1 Bb5 R1d2 Re8 Nd8 Re4 Ne6 Ra4 Bg3 Ra5 Be5 Rcb2 Bd6 Rbc2
1q3B2/1p3K2/6NR/b4B2/1nPnN1p1/rrnN1B2/1Rn1Br2/kqRrb3 w - - 0 1 legal: proof: d4 a5 g4 h5 b4 hxg4 e4 axb4 f3 d5 Bd3 e5 Bf1 exd4 Qd3 Bf5 e5 Be4 Qa6 d3 fxe4 d4 Qd6 cxd6 Kf2 Kd7 Kg3 Kc6 Kf4 Kb5 Kf5 Ka4 h4 g5 c4 g3 h5 d5 h6 g2 e6 b3 a3 d2 e7 d1R e8B+ Nc6 e5 b2 e6 Kb3 h7 d3 a4 d2 a5 g4 e7 d4 a6 d3 a7 Nf6 Ra5 Qb8 Kg5 Nd4 Ra4 Nd5 Ra6 f5 Kg6 f4 Nh3 g1B Rf6 Ka2 Bd7 f3 e8B f2 Kf7 Ka1 Nc3 b1Q Rh6 Nb4 Be2 f1R+ Bf5 Bf2 Nf4 Be1 Ne4 Rf2 Bc6 Bc5 R1h2 Bb6 Ba3 Ba5 Rg2 Re8 h8N Re5 Nhg6 Rb5 Bfd7 Nbc2 Rgh2 Rb3 Bf5 Nb4 Rg2 Rc1 Rg1 d1N Rf1 d2 Nd3 Ne3 Rfh1 Na2 Bf8 d1N Rg1 Nec2 Rg2 Qd8 Rgh2 Nab4 Rg2 Rc8 a8R Nc3 Ra6 Ra8 Rb6 Nba2 Rg1 Rd1 Bd5 Qb8 Rb4 Ra3 Rb2 Nab4 Nd6 Rb3 Ne4 Rd2 Be7 Bb6 Nf6 Raa3 Bdf3 Bc7 Bf8 Ba5 Ndf4 Rd3 Ne4 Bd2 Rd1 Be1 Rc1 Rd2 Nd3 Rd1
1B3b1b/3b1Kb1/7p/NN3prR/k2PnBB1/6Rn/2qB1qnq/4Rn1N w - - 0 1 legal: proof: e4 b5 f4 d5 a4 bxa4 c4 dxc4 e5 g6 e6 fxe6 f5 e5 f6 e4 h4 a5 g4 Nd7 g5 Kf7 Qf3 Nb8 Qf5 gxf5 h5 Ke8 Kf2 Nh6 Ke2 Rg8 Kf2 Rg6 hxg6 Ng8 Ke1 Ba6 Be2 Qd6 Kf1 Kd7 Rh3 Bg7 Ra2 Nh6 Rh4 Nc6 Bf3 Rh8 Bg2 Bc8 Ra3 Ke8 Ra1 Nb8 Ke1 Ng8 Bf1 Bf8 Rh1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Ke5 c5 b4 h6 f7 a3 d3 a2 g7 a4 g6 a3 Rh5 e3 Bg2 e2 Bb2 e1N Bb7 c3 Bd5 c4 Bb7 c2 Bg2 c1Q Nh3 c3 Ng5 c2 Rh1 Na6 Nh3 Nc5 Bd4 Nb3 Nf2 Nd2 Be3 Nf6 g8N Bd7 g7 Nfe4 Bh3 Ka4 b5 Ng2 b6 Nf1 b7 Qc7+ Kd5 e5 b8B Qb2 Bd2 c1N Bg4 Qbc2 Rh5 Ne2 Nh1 Ng1 Ne7 Nh3 g8R Rh7 Nc6 Rg7 Na5 Rg5 Be3 Neg3 Bc1 e4 Bf4 e3 Rg7 e2 Nc3+ Kb4 Rd1 e1Q Nb5 Qef2 Re1 a1B Rg6 a2 Rg7 Be7 f8B Ka4 Rg8 Ba3 Bb4 Ne4 Bbd2 Bh8 Rg6 a1B Rg7 Be8 Ke6 Bd7+ Kf7 Bf8 Rg6 Bag7 d4 Ba3 Rc6 Baf8 Rc3 Qd3 Rb3 Qdg3 Rd3 Qh2 Rg3 Qc2
1bb1BKrr/B1R1p2p/RnB2BNq/2N1Pk2/2N3n1/7p/3q3R/5rbq w - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 f4 a4 e4 d6 c4 a3 b4 g4 f5 a2 b6 d3 c5 g3 b5 g2 b7 d2 b6 Ra3 e5+ Kg5 f6 Kf5 f7 Bg7 f8N Kg5 c6 Qe8 c7 Kf5 Ne6 Qb5+ Nc5 Qa5 Rh2 Bf6 Bb5 Bg5 Qb3 d1Q+ Nd2 Nd7 b8B Qa6 b7 Be3 Ne2 g1B Ba7 Nh6 b8R Ng4 Rb7 Nb6+ Kc6 d5 Nf4 d4 Nc4 d3 Ng6 Bd4 Bg5 d2 Bf6 Qf1 Qg3 d1Q Qg2 Qde2 Qd5 Qfd1 Qg8 Rg3 Ba4 Qed2 Bb5 Be6 c8B Qf3+ Kc7 Qh1 Bcd7 Bdf2 Be8 Bc8 Bbc6 Be3 Rc1 a1R Rc2 Rf1 Ra2 Bd4 Kd8 Rg2 Rc7 Bdf2+ Nd3 Bc5 Ra4 Bd6 Nc5 Rg3 Rd7 Bb8 Ra5 Qh6 Rc7 Qb5 Ra6 Qb2 Bb5 Qa2 Bec6 Qad2+ Ke8 Ne3 Kf7 Rg4 Be8 Rg5 Bbc6 Ng4 Nf4 Rg7+ Kf8 Qd4 Ng6 Qdf4 Nb3 Qd2 Nc5 Rgxg8+
N4RK1/BrP2r2/bRp3bB/2N1qk2/4pn2/3N1n2/prBnr3/RB1b4 w - - 0 1 legal: proof: h4 c5 e4 g5 b4 gxh4 e5 cxb4 e6 b5 a3 b3 Qg4 b2 Qe2 fxe6 Qf3 e5 Qd1 e4 c4 b4 c5 b3 c6 Bg7 c7 Be5 Qc2 Bd6 Qc6 Bb4 axb4 dxc6 Ke2 Kd7 Ke3 Ke6 Kf4 h5 Kg5 a5 Kg6 a4 Kg7 a3 f4 e3 g4 a2 d4 h3 g5 h2 d5+ Kf5 b5 e5 g6 h4 d6 h3 d7 e2 b6 e1R b7 Re2 Nd2 b1B Ngf3 b2 Nc4 Qg5 d8N Ra7 Nb6 Nf6 Ne6 Nbd7 b8B Nd5 Na8 Rf8 Ne1 Rf7+ Kg8 Ba6 g7 Rb7 Ba7 Qf6 Rg1 h1R Nc5 h2 Ned3 Bc2 Be3 b1N Bg2 Nd2 Rgb1 Rf1 Rb6 h1B Bf3 Bd1 Be4+ Kg4 f5 Rff2 Bg5 Nf4 Bh6 Qd6 f6 Qd5 Bh7 Be4 Ne6 Bg6 Nec5 Re7+ f7 Kf5 Rbb1 Qd6 f8R+ Rf7 Rb4 Nb6 Rbb1 Nbc4 Rb6 Qe6 Kh8 Nf3 g8B Rf6 Bf7 Ncd2 Kg8 Qe8 Bd5 Rf7 Be4+ Kf6 Na4 Bh5 Nb4 Re3 Nd3 Nb1 Nc1 Rb2 Bef5 Nbd2 Bd3 Re2 Nc5 Qe6 Bhf5 Bg6 Bb1 Qe8 Bfc2 e4 N1d3 Kf5 Nd7 Qe6 N7c5 Qe5
2n4q/1pB1RB1N/4r3/r2R4/nRp2P2/1N1p1Kqb/1k2NbRr/4Brr1 w - - 0 1 legal: proof: c4 c5 b4 f5 d4 g5 h4 gxh4 e4 cxd4 Qb3 a6 exf5 Qc7 c5 Qd8 b5 axb5 Qc4 bxc4 Ke2 Kf7 g4 Kf6 a4 Ke5 f6 h5 f7 d5 g5 d3+ Kf3 Kd4 g6 e5 a5 e4+ Kf4 e3 c6 h3 a6 d2 a7 d1R g7 h2 c7 h4 Ra5 e2 Bg2 e1Q Kf3 h3 Bf4 Bc5 f8B Nd7 Nd2 Kc3 Nb3 d4 Ne2+ Kb2 Rg1 Ne7 g8N h1R Nf6 d3 Nh7 h2 Bg7+ Bd4 Rd5 Re8 Bd2 Nc5 Be5 Bf5 c8R Bh3 Rc7 Nc8 Re7 Na4 Bc7 Ra1 Ng3 Qe5 Ne2 Rf1 Be1 Qdd6 Rb5 Qh8 Rb4 Rb8 a8R Qg3+ Ke4 Bb6 f4 Bf2 Ra5 Ra8 Rd5 Ra6 Bf3 Ra5 Rg2 Rhg1 Bh5 h1R Bg6 Rh2 Bf7 Qg5 Kf3 Qh4 Red7 Re6 Re7 Qg3+
8/1N1k2bq/1Bb1rbB1/n1R1Pr2/Rpr3p1/2N1N1q1/B3p1Bn/4RbK1 w - - 0 1 legal: proof: g4 e5 f4 a5 e4 h5 b4 axb4 d3 hxg4 Qf3 c6 Qe3 c5 d4 cxd4 fxe5 dxe3 c4 g5 a4 f5 h4 d5 h5 b5 e6 d4 a5 f4 a6 d3 a7 b3 c5 f3 e7 f2+ Kd1 d2 Ke2 d1R h6 b2 h7 b4 c6 g3 c7 g2 Ra4 Rd5 Nd2 b1Q Rh5 Bd7 c8N Bg7 Nc4 Bc6 N8d6+ Kd7 Nb7 Rf5 e5 Nh6 Rh1 Re8 h8R Ng4 Bb2 Qa5 Bd4 Nh2 Bb6 g4 Rg8 Qd5 Rf8 Rc8 Rf6 Qg8 Rg6 Qb3 e8B+ Ke7 Rh6 Qh7 Bg6 Kd7 Rh3 Re8 Rf3 Re6 Rf4 Ke7 Rd4 Qa3 Rd5 Bf6 Rc5 Kd7 Nf3 g1B Bg2 Qc3 Nfd2 f1B+ Ke1 e2 Ne3 Qb3 Ne4 Bg7 Nc3 Bf2+ Kd2 Bh4 Bd5 Bg5 Ke1 Qa3 Ba2 B5f6 Rg1 Bb5 Rh1 Nc6 Rg1 Rh8 a8B Rc8 Rh1 Na5 Rg1 Rh5 Kf2 Bc6 Rh1 Rg5 Kg1 Rf5 Nd8 Bb5 Bg2 Bc6 Nb7 Qb3 Ncd5 Qd3 Nc3 Rc7 Ned1 Qg3 Ne3 Rc8 Rb5 Bf3 Rd5+ Rd6 Rb5 Rc4 Rc5 Re6 Ncd5 Qgh4 Nc3 Qh3 Kf2 Bc6+ Bf3 Bg2 Re1 Q3h4+ Kg1 Bf1 Bg2 Qg3
KR2n1Rr/2b4R/1BB1qNN1/qp2Pr2/b5b1/2BpN3/q3pk1N/2qn4 w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 h5 g4 e5 gxh5 a5 f4 axb4 Qd2 exf4 Qe3 dxe3 Ke2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 Kd4 a4 f5 c4 g5 h4 d5 e5 f3 a5 f2 c5 b3 a6 f4 c6 g4 a7 g3 Ra3 Rh6 c7 f3 Ra2 g2 Nd2 b2 Nb1 Qf6 Na3 b1Q+ Rb2 Bg4 c8R Qa2 Nc4 Ne7 Bd2 Nf5 Bc3+ Ke4 Be2 Bd6 Kb6 f1Q Rg8 f2 Nf3 g1Q Rh3 d4 Nh2 Kf4 Bf3 Na6 Bc6 Rf8 a8N Qe6 Ka7 Qfb1 Nc7 f1B Ne8 Nc7+ Kb8 Rh7 h6 d3 h5 Bfe2 Rh4 Kg3 Rb5 Qgc1 Rb6 Rd7 h7 Kf2 h8B Qb4 h6 Bd1 h7 Ba4 Bf6 Re7 h8N Rh7 Rh3 e2 Ng6 Rh8 Bd8 Ne3 Rh7 Rf5 Nf6 Ne8+ Ka8 Nd1 Ne3 Bb8 Ra6 b5 Rb6 Bd6 Rbb7 Bb8 Bb6 Bc7 Rb8 Qa5+
1b1N1n1q/N1b3b1/nNp2R2/p1pqBbK1/1B3rR1/4r2q/3PR3/NB5k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 d6 Ra5 dxc5 Ra1 g3 Qb3 g2 Qg3 fxg3 b4 Kd7 h4 Ke6 e4 Ke5 Ke2 Kf4 b6 f5 b7 a5 e5 g5 b5 g4 e6 c6 h5 Qb6 e7 Rh7 e8R Na6 b8N Bg7 h6 Nf6 Nc3 Qd8 b6 Nd7 b7 Nf8 Ba3 Qd5 Nf3 g1B Nd7 g2 Nb5 Kg3 b8B+ f4 Nb6 Bh2 Na7 g1B Be5 Bf5 Nd4 Rc8 Re7 Re8 Nb3 Rh8 h7 Bd4 Bd6 Bde5 Bb4 f3+ Ke3 f2 Bd3 Kg2 Rhf1 g3 Ra4 Rg8 Bb8 Bc7 Na1 Rh8 Re6 Rg8 Re1 f1Q h8N Kh1 Bb1 g2 Re2 Bhe5 Rf6 g1Q+ Rf2 Qfg2 Nf7 Q1h2 Nd8 Qh8 Re2 Bed6+ Be4 Re5 Kf4 Qf3+ Kg5 Re7 Bd3 Re3 Bb1 Qfh3 Nac8 Nd7 Na7 Rf8 Ba3 Rf7 Rg4 Nf8 Bb4 Bh2 Ne6 Bd8 Be5 Bc7 Nd8 Bb8 Bd4 Bhc7 Be5 Be4 Re6 Rf4 Rf6 Bf5
nb2R3/1K2P3/pnB1Bb2/p2nq1R1/N2n1Nbb/B3pq2/5rRB/4k2N w - - 0 1 legal: proof: e4 c5 a4 d5 g4 dxe4 b4 h5 a5 hxg4 a6 bxa6 b5 a5 f4 e5 Bh3 e3 Bg2 a6 Bf1 e4 Qe2 Rh5 Qc4 Re5 Qb4 cxb4 fxe5 Ra7 Ra3 Re7 Ra2 Re6 Ra3 Rh6 Ra1 Rh8 Ke2 Ke7 c4 Ke6 h4 Kf5 d4 Kf4 e6 Kg3 h5 g5 h6 f5 e7 f4 h7 b3 d5 f3+ Kd1 Kf2 d6 g3 b6 g2 c5 g4 b7 g3 d7 b2 Kc2 e2 Kb3 e1B Kc4 e3 Kd5 Bg7 c6 Nf6+ Kc5 Nd5 c7 Rf8 h8N Nb6 Bb5 Na8 Rh7 Bf6 Ne2 g1B Rh5 g2 Ra2 Bh2 Ng6 g1N Ng3 Ne2 Bc6 Nd4 Nc3 Qe8 d8B Bg4 c8B Nd7+ Kd5 Rf7 b8R Qh8 Na4 Ndb6+ Kd6 Rf8 Bc7 Qg7 Nf4 Qg5 Ra3 b1N Be6 Nc3 Re8 Ncd5 Nh1+ Kf1 Bb2 f2 Ra2 Qe5+ Kc5 Bg3 Ba3 Bgh4 Rb2 Bc3 Ra2 Ke1 Rg5 f1Q Rg2 Qf3 Ne2 Qef5 Bh2 Be5 Nf4 Bb8 Bb5 Qe5 Bbd7 Nb5 Kc6 Nd4+ Kb7 Qf1 Nh5 Rf2 Bc6 Qe2 Nf4 Qf3 Bg1 Ba1 Bh2 Qf5 Nh3 Nb3 Ng1 Bf6 Nh3 Nd4 Nf4 Qe5
1nN3R1/3r4/1N1nr2B/B1Rn1pN1/2P1p1r1/pqb4p/b2b3R/K1N1kB2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 f4 b5 axb5 g6 e4 Qc7 Qg4 fxe4 f5 Qe5 f6 Qh5 Qf5 gxf5 Kd2 Qxh4 Kd1 Qh3 Ke1 Qh2 Kd1 Kf7 g4 Kg6 b4 d5 f7 e5 b6 h5 c3 a5 b5 e3 g5 h4 b7 Kh5 g6 Kg4 g7 Kg3 b6 Kf2 Kc2 h3 Kb2 e2 Na3 e1B Bg5 d3 Rb1 e4 Rd1 d2 Nb5 a4 Nd4 a3+ Kb1 Rh4 Nb3 d4 Nf3 d3 Ka1 Nf6 g8R Bb4 f8N Ne8 Ng6 Nd6 Bh6 Qg3 Ng5 Rg4 Ne7 Ra6 Rc1 Be6 Nc8 d1N Rc2+ d2 Nc1 Ba2 Rh2+ Qg2 c4 Nc3 Rb2 Nd5 Rb1 Bc5 Rb5 d1R Ra5 Bcb4 Rc5 Nd7 b8N Bed2 b7 Ke1 Bd3 Qf3 Bf1 Nf8 Nd7 Qb3 Ndb6 Nd7 Na4 Rb6 b8B Rc6 Bc7 Nb8 Na7 Nf7 Nc8 Re6 Bd8 Nd6 Ba5 Nb7 Rh1 Nb6 Re5 Bf4 Bf8 Rd7 Rc5 Nd6 Bh6 Nd5 Rh2 Bfd2 Nab6 Bbc3+
B2N1b1B/1q5B/pR1pPK2/p1nR4/p3R1N1/1rqq1rq1/3N4/2q1Nb1k w - - 0 1 illegal: No possible last move
r1b1R2N/3prp2/1q1R2nn/NqnK4/R2P2b1/N3BNBB/1b2k3/b1b1n3 w - - 0 1 legal: proof: g4 c5 f4 h5 b4 hxg4 f5 cxb4 f6 a5 c3 a4 Qb3 axb3 Bb2 exf6 Ba3 f5 Bc1 f4 Kf2 Ke7 e4 Ke6 a4 Ke5 h4 g5 h5 b5 c4 Kd4 a5 f3 c5 g3+ Ke1 g2 Kf2 b2 e5 g4 c6 b3 d3 b4 a6 g3+ Ke1 f2+ Kd2 Qb6 a7 Ne7 c7 Na6 h6 Bg7 h7 Nc5 e6 Re8 h8B Ng6 Ra2 Re7 Nh3 g1B Ke2 g2 Na3 b1B Kf3 b2 Ng5 b3 Rh6 Bc2 Bd2 b1N Be3+ Kc3 Ra1 b2 Ra2 Bd4 Be5 Bh2 Ra1 g1B Bh3 f1N Bg3 Bf2 Ra2 Be1 Ra1 Bd2 Ra2 Bc1 Ra1 Nb3 Ke4 Nc5+ Kd5 Nbd2 Nf3 b1Q Ra2 Q1b5 Ra1 Rb8 a8N Bd1 Ra2 Bg1 Ra1 Nh2 Ra2 Q6a6 Nb6 Ra8 Nbc4 Qab6 Na5 Ng4 Ra1 Nh4 Rf6 Ng6 Ra2 Nh6 Ra1 Re8 e7 Be2 Rd6 Bf6 Ne5 Nf3 Ra2 Ne1 Nf3 Kb4 Ra1 Bfb2 Ra2 Kc3 d4 Kd3 Ra1 Bf2 Ra2 Ng2 Ra1 Be1 Ra2 Bec3 Ra1 Ba6 c8N Ne1 Ra2 Bd1 Ra1 Ke2 Ra2 Rf8 e8R Rh8 Ne7 Bc8 Nc2 Ba1 Ra4 B3b2 Na3 Bc2 Bgf4 Bf5 Bh2 Bg4 Bg3 Ne5 Ng6 Rg8 Rd8 Re8 Nh8 Re7 Re8 Ng6
3b4/p1Br2NR/1b2pKpr/P2R1R2/kpbN4/5qrn/1n1r1B2/4NrRB w - - 0 1 legal: proof: e4 c5 b4 cxb4 g4 h5 e5 hxg4 e6 f5 Nh3 g3 Qg4 fxg4 Ng1 dxe6 Ba6 e5 Bf1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 b5 Kg5 g6 h4 e3 c4 g2 a4 g3 d4 e2 f4 e1B d5+ Kc5 d6 b3 h5 Kb4 d7 b2 a5 Nf6 c5 e6 f5 Bg7 c6 Ng4+ f6 Nf2 h6 Na6 h7 Qf8 d8R Nc5 f7 Na4 c7 Ba6 c8N Bd4 Ne2 g1R Bf4 g2 Rd5 Bb6 Kf6 Nh3 Na3 b1R Nd4 Rd1 Ne7 Re8 Nef5 Re7 Ng7 Rd2 Bc7 Nb2 Be2 Rf1+ Bf3 Qa8 f8R g1R Rc1 Bf2 Nac2+ Ka4 Ne1 b4 Rh2 Qb7 Bh1 Rg3 Rf7 Bg1+ Rf2 Bc4 Rff5 Rc8 h8B Bh2 Rd7 Qf3 Rd5 Rb8 Nh5 Rbe8 Rh7 Rg8 Bg7 Rh8 Bh6 Bg1 Be3 Bh2 Bf2 Bg1 Rg7 Rh6 Rh7 Bh2 Ng7 Bg1 Bf4 Bd8 Bc7 Rg4 Bfg3 Be3 Bf2 Rg3 Nb3 Bc5 Nd4 Bb6 Nd3 Re1 Rb1 Ree2 Rf1 Re1 Rg1 Rf1 Ne1 Rd7+
q1rr4/2PR4/3RRbR1/2qn1qB1/1B2n3/b3nbKB/r1kb4/QbB3N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 e4 Ke7 h4 Kd6 c4 Ke5 b4 f5 b6 d5 b7 g5 b5 a5 h5 g4 c5 f4 c6 d3 c7 Kd4 e5 Kc3 b6 d2+ Ke2 f3+ Ke3 f2 Kf4 d4 e6 a4 e7 a3 e8R d3 h6 a2 h7 Ba3 Nf3 g1Q Re1 g2 Rh3 g3 Rh1 Ne7 Ng5 Nd5+ Kf3 Bf5 Re3 Na6 b8R Nc5 b7 Ne4 Qe2 d1R Rb1 a1B Qe1+ Kc2 Rh6 d2 Rbb6 Bf6 Rd6 Qf8 Rd7 Qh1 Rg6 g1B+ Bg2 f1N Nh3 Rg8 h8B Bf2 Rd3 Nfe3 Re8 Rd8 Qf1 Be1 Ng1 Qh7 Bh3 g2 b8B Rc8 Ne2 g1Q Re6 Qc5 Ba7 Rgd8 Rdd6 Qc6 Bg7 Qa8 Bc5 Qg5 Bh6 Qd7 Bb2 Ra1 Bc1 d1B Bb4 Bd2 Qh1 Qg1 Bg5 Ra2 Rd4 Ng4 Rd3 Qc5 Kg2 Qh7 Ng1 Nge3+ Kh2 Bf3 Rd4 Nec3 Kg3 Bd3 Rg8 Qf5 Rg6 Kb3 Rd7 Bb1 Rdd6 Kc2 Rd7 Ne7 R4d6 N7d5 Qg2 Ncd1 Qf1 Nf2 Qe1 Ned1 Qe5 N1e3 Qa1 Ne4+
1Q2NN1n/b1rR2B1/N2b2b1/4Pq1k/1B2B1bq/2BK2bb/1r6/q2n1b1N w - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 g5 e4 d5 h4 a5 c4 f5 b6 Kf7 e5 Kg6 b5 a4 b7 g4 b6 a3 c5 d3 c6 f4 c7 a2 Ne2 a1Q Na3 g1B Nd4 f3 Bb2 f2 Qe2 g2 Qe4+ Kh5 Ndb5 d4 Be2 f1B Nc4 Ra7 Qf3 Ne7 Qe3 Nd7 b8N Nd5 b7 Nc3 Na6 Bf2 b8B g1Q Nbd6 Nd1 Ne8 Bd6 Bf3 Bg3 Bc3 Nf8 Nb2 Ng6 Be4 Qf2+ Qe2 Bd7 c8N Qf5 Nb6 Rc7 Qe1 Be6 Nd7 Rh6 Nf8 Nh8 Ba7 Bf7 Rh2 Bg6 Bc5 Rhh7 Re2 Rb7 B5b4 Rhc7 Nc4 Bh3 Ne3 Qe7 Nf1 Qh7 Ba5 Rb1 Qf2 Rb2+ Ke1 Kh6 h5 Bh4 Nf6 g3 Qf3 g2+ Qg3 g1B Qf2 Bc5 Rd2 Ne3+ Rd1 d2+ Ke2 Ba3 Ng3 Kg5 Nh1 Bg3 Rf1 Bc5 Bab4 d1B+ Kd3 Bdg4 Rd1 Qe7 Ne8 Qd8 Rd2 Nd1 Kc4 Be2+ Rd3 Bef1 Qe2 Kh6 Rd2 Qh4 Rd3 Kg5 h6 Nf7 h7 Nh8 Bb7 Be3 Qf2 Kh5 Be4 Qc8 Qf6 Qf5 Qd8 Ba7+ Kd5 Bg5 Qb8 Be7 Rd2 Bec5 Rd3 Nf2 Rd1 d3 Kc4 d2+ Kd5 Nf7 h8B Be7 Bg7 Nh8 Re1 d1B Re2 Rc6 Rd2 Bdg4 Rd1 Bec5 Rd3 Nd1 Kc4 Bfg2 Rd5 Rc7 Rd7 Bd6+ Kd3 Bf1#
3q1Q2/1Nr5/2n3bb/K1N2R2/R1Rqq1R1/1q6/NkN1bnP1/1nrr1b1B w - - 0 1 illegal: Other
Nkn1rKn1/n6R/b1BR2q1/4B1pq/1B5n/1R1b4/Q3PR2/1Bq1bnq1 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Nb1 f5 Nc3 b5 Nd5 f4 Ne3 Ra6 Nd5 Rf6 Ne3 Rf5 gxf5 Na6 Ng4 hxg4 Bb2 Nb8 Ba3 Bd6 Bc1 Bf8 Kd2 d5 Kd3 Kd7 c4 Kc7 a4 g5 h4 g3 c5 g2 h5 b3 a5 b2 c6 b1B+ Qc2 f2 h6 f3 h7 b4 f6 b3 f7 b2 a6 Nd7 a7 Qe8 a8B Kb8 Bd2 Nb6 Ra6 Bb4 f8R Qh5 Nh3 g1N Bg2 f1N Nf4 f2 Be4 Nf3 Ne6 Nh4 Nc7 Bc3 Rf6 Bb7 Ra3 Nc8 Rb3 Ba5 Bb4 Ba6+ Nb5 Bc7 Rd6 Ba5 Bc5 Be1 Bb4 Ng3 Rh2 f1N Rf2 Na7 Bg6 Ngf5 c7+ Kc8 Bc6 Nfe7 Bce8 Kb7 Bd7 Ka8 c8R+ Kb7 Rc7+ Kb8 Be4 Nec8 Bdf5 Nge7 Bh1 Re8 h8B Ng8 Bfe4 Ba2 Rh7 b1Q Be5 Qc1 Bhg2 Bb1 Rf3 Qf4 Rf2 Qf5 Bh3 Qf6 Bd7 Qfg6 Bc6 Ba2 Rb1 Bb3 Qa2 Bc4+ Kc2 Bd3+ Kb3 Bc2+ Ka3 d3 Nc7 d2 Rb3 d1Q Na8 d4 Ka4 d3 Ka5 Nce7 Kb6 d2 Kc5 Nec8 Kd5 Bcd3 Bf5 Bdb5 Bd3 Qa1 Bb1 d1Q+ Kc5 Bd3 Kd5 Rf8 Kc5 Qc1+ Kd5 Qg7 Ke6 Qgg6+ Kd7 Rf7+ Ke8 Re7+ Kf8 Qd4 Rff6 Qg1 Rf2 Re8+
kbNR1B2/1n4q1/2R1NNb1/rN2K2n/1b3rrq/2p1Rq1p/5P1R/qQ6 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Bd3 g6 Bf1 g5 b4 gxh4 b6 a6 b7 Kf7 b5 Ke8 b6 Ra7 Be2 Qd5 Bg4 Ra8 Be6 Qd8 Bd7+ Kf7 Bb5 axb5 Qe2 Ke8 Qf3 Qd5 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 h5 d4 e5+ Ke3 b4 g4 c3 g5 b3 g6 b2 g7 c2 Qe2 h3 Qf3 h4 Ra3 h2 Ra1 h3 Qd1 Bd6 Ra4 Bf5 Ra2 Rh4 Qd3 Nf6 g8N Nh5 Qd1 Na6 b8R Bg6 b7 Nc5 Nc3 b1Q Bd2 c1R Ra3 Rg4 Ra7 Qh4 Rc8 Qa1 Ra3 Ra5 b8N+ Kb7 d5 Ka8 Nf3 Nb7 Nd4 c5 Nbc6+ Bb8 d6 c4 d7 Rf4 Qc2 Rg1 d8R Rgg4 Ncb5 Qb2 Ne6 Qc3+ Ke2 e3 Nf6 e4 Qb1 Qa1 Bb4 Qb2+ Ke1 e2 Re3 Qa1 Kd2 e1Q+ Kc2 Qg1 Nca7 Qg2 Bf8 Qf3 Rf1 h1Q Rc6 Qhg2 Rh1 Qg1 Rh2 Qgg2 Red3 e3 Nc8 e2 Kd2 e1B+ Kc2 Rf5 Ra3 Bb4 Re3 c3 Kd3 Nf4+ Kd4 Nh5+ Ne4 Rf7 Kd5 Qgg3 Kd4 Qc7 Kd5 Rff4 Kd4 Nd6 Ke5 Qg7+ Nf6 Nb7+
KQBB4/nB1q3P/1rp3nR/n5bR/1b3pb1/Nq6/k2rR2q/n4RB1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Ne4 g2 Ng3 hxg3 Qa4 Qf6 Qd1 Qd8 d4 Kd7 Kd2 Kd6 Ke3 Kd5 h4 f5 b4 a5 b6 g5 b7 c3 b5 Kc4 h5 g4 b6 a4 h6 a3 h7 c6 d5 a2 d6 c2 d7 Kb3 Kd4 f4 e4 Qe7 d8B Bh6 e5 Qd7+ Kc5 Ra6 e6 Bg5 Ne2 g1Q+ Be3 g2 e7 g3 e8B Qh2 Nc3 g1B Nb1 g2 Qd6 c1N Na3 Ne7 Be2 Qg3 Rh6 Ng6 Bf7+ Kb2 Be6 Qf3 Bf2 Qb3 Be3 Bf2 Bb5 Be1 Bg1 Re8 Bg4 Re2 Qc7 Ra4 Ba6 Rb4 Bf5 Bc3 Qe5 Rd2 Bh3 Ne2 Rf1 a1N Qe8 Nd4 Qe5 Qg7 Kd6 Nd7 Kc7 Qe7 b8R Ka2 b7 Rb6 Ra8 Bb4 b8R Qg7 Bb7 Nc5+ Bd7 Qgf7 Ra5 Qf5 Rba8 Nb5+ Kb8 Na7 Qh8 Qfd3 Bh3 Bg4 Qe5 Bf3 Bc8 Qd7 Qc7 Bg4 Qd6 Na4 Re5 Nb2 Re2 Nc4 Qe5 Nb5 Ra5 Na7 Rd5 Na5 Ka8 Bc3 Qb8 Bb4 Bh2 g1Q Rc5 Qgg3 Bg1 Qh2 Rce5 Bge7 Reh5 Bg5
1r1k4/R2rNB2/N2B3r/5Nn1/1Pp5/nqrr2B1/1p1Br1Qb/q4NrK w - - 0 1 illegal: No possible last move, all moves rejected
4n1RK/1qb2q2/N3PB2/Nq6/1q1B2rN/NQp3rb/BBqpr2k/1q6 w - - 0 1 legal: proof: e4 a5 b4 b5 a4 e5 d4 exd4 h4 f5 c4 g5 e5 gxh4 Ra3 Nc6 Re3 Na7 Re4 fxe4 Nc3 axb4 Nb1 b3 Bf4 b4 Bc1 Nb5 cxb5 Qf6 Rh2 Qg5 Rh1 Qd8 Kd2 Kf7 f4 Ke6 g4 d5 a5 h5 a6 c5 b6 e3+ Kd3 c4+ Ke2 d3+ Kf3 e2 b7 e1Q b8B d2 g5 Kf5 a7 h3 g6 h4 g7 h2 Be2 d4 Na3 d3 Bd6 b2 Qa4 d1Q Qb5 b1Q Be7 h3 Bb2 b3 Bf6 Qe8 Qa4 Rb8 a8N Qb4 Nc7 c3 Na6 d2 Kg3 Qh5 Bc4 Bd6 Nf3 Qf7 Rg1 h1R Nh4+ Ke4 f5 h2 Rg2 Qdc2 Kg4 Re1 Kg5 h1Q Qb5 Re2 e6 Bb7 Bd4 Nf6 g8N Ne8 f6 Bc7 Ne7 Rg8+ Kh6 Kf4 Nc6 Rg4 Na5 Ra8 Rg1 Bg2 Qb6 Kg3 Bd5 Qg8 f7 Kh2 f8B Bh3 Be7 Qf7 Bef6 Qf1 Bc4 Qb7 Qb5 Qff5 Qa4 Qfb5 Bd5 Rf4 Rg7 Rfe4 Kh7 Rg4+ Kh8 Ra7 Rg8 Rg3 Ba1 b2 Ba2 b1Q Qb3 Ra8 Bb2 Rd8 Bb6 Rd4 Bc5 Rde4 Bcd4 Reg4
1r2B1NB/3Nbn2/K4rr1/n7/P1kq1NRp/3nrQpB/1nq4B/1Nr5 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 c5 g5 cxd4 g6 e4 Ra2 fxg6 Rb2 g5 Bh3 g4 Bg2 Nf6 Bf1 Ng8 h3 g5 Qd2 g3 Rh2 b6 Kd1 g2 Rb3 g4 Ke1 g3 Qd1 Bb7 Rd3 exd3 Rh1 Be4 Bd2 Bf3 Bc1 Bg4 hxg4 Qg5 Nf3 Qe7 Ng1 Qd8 Kd2 Kf7 c4 Ke6 f4 h5 e4 d5 g5 h4 e5 b3 g6 b5 c5 b4 c6 b2 c7 b3 c8N Rh6 g7 Be7 Nh3 g1R Be2 Rf6 Qe1 Nh6 g8N Nf7 Bf1 Nc6 Qf2 Rb8 Qf3 Na5 Bg2 Re1 Rf1 Re3 Nb6 Qc8 Nd7 Qc7 Nc3 b1R Bb2 Rc1 Nb1 Rc6 Ba1 b2 Rc1 Qd8 Rc4 Rd6 Kd1 d2 Kc2 d3+ Kc3 d1R Rb4 Kf5 e6 d2+ Kd4 Rh1 Kc5 d1N Bf1 d4 Bg2 Ra8 Kb5 d3 Re4 d2 Rd4 Bf8 e7 Ke6 e8B Nf2 Rc4 Rc6 f5+ Kd6 Rg4 d1N Nf4 Be7 Bf1 Nd3 Bh3 Rg6 f6 Rb8+ Nb6 Rc1 Ka6 Kc5 Nd7+ Kb4 Qg2 Kc4 Qf3 Nd6 f7 Rf1 f8B Nf7+ Ndf6 Qd4 Bg7 Rf2 Bh8 Bd6 Nd7 Rf1 Nc3 b1Q Bb2 Qc2 Nb1 Rf2 Bc3 N1b2 Be1 Rfe2 Bf2 Ree6 Be3 Ref6 Bg1 Re3 Bh2 Be7+
n1r2q1K/2pBQ3/1B1br3/R1b3N1/P2B1R1R/1rR1q3/1kpr1q2/1q3B1b w - - 0 1 illegal: No possible last move, all moves rejected
6R1/1B2Knrr/n1B1R3/n1Pp4/1Nq1bB2/1kbQ2RR/4qpp1/r3b1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 a5 h4 f5 b4 g5 e4 g4 h5 d6 e5 a4 b6 a3 b7 f4 h6 f3 b5 d3 b6 d2 h7 a2 Ne2 g1B Rh3 g2 Nc3 g3 Nd5 Na6 b8R Bd4 b7 g1R Nb4 f2 Bg2 Qh4 c3 Bd7 Re8+ Be7 b8B Nh6 Rg8 Nf7 Bb7 Bc6 Rg7 g2 Rgg3 Be4 Qc2 d1Q Bf4 Rg8 h8R Qe2+ Qd3 Rh1 Re1 Rg7 Rg8 a1N Kb5 d5 Kc6 Nb3 c4 Bc3 c5 Bd8 Bd6 Ba5 Bc7 Kf5 e6 Qhg4 e7 Ke6 Rhh8 Rhh7 e8B Kf5 Kd7 Ra7 Qc2 Qc4 Ree3 Qge2 Ke7 Be1 Bec6 Ra8 Na2 Bac3 Qd3 Na5 Nb4 Ra7 Rg6 Ra8 Re6 Ra7 Bh2 Ra8 Rg3 Ra7 Rd6 Ke5 Bg1 Ra8 Qc2 Kd4 Re6 Qcd3 Bd6 Kc4 Bf4 Qd4 Qd2 Kb3 Qd3 Qc4 Rc8 Rh2 Rhh3 Rh1 Rc7 Rh8 Rc8 Rhh7 Rg8 Bd2 Bh2 Ra1 Bg1 Be1
kBQr2n1/3rN1P1/1K1Bp3/BRnq1b2/N1b4N/3r4/2Bpp1qN/1r3r2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 a5 e3 axb4 h5 d5 h6 d3 Ba3 d4 Bb2 d2+ Ke2 gxh6 Ba3 h5 Bc1 h4 a4 f5 Ra3 Bg7 Rc3 Nc6 Rc4 d3+ Kf3 Ba1 Re4 Bd4 exd4 fxe4+ Ke3 Nb8 c4 e6 Qc2 d1R f4 Kd7 g4 Kc7 a5 h5 g5 b5 f5 Kb7 c5 b3 a6+ Ka7 c6 b2 f6 b4 f7 h3 f8B h4 d5 b3 Kd4 e3 Kc5 h2 d6 h3 g6 Qe7 g7 Qc7 d7 Ne7 d8B Qg3 Nd2 b1B c7 b2 Ngf3 Nd7+ Kb5 Bb7 c8N+ Kb8 Qc5 Bd5 Nh4 Ra7 Ndf3 Bc4+ Ka5 Rc7 a7+ Kb7 a8N e2 Nab6 d2 Bg2 Bf5 Na4 Ka8 Rf1 h1Q Rg1 b1R Bb2 h2 Be5 Rb2 Re1 Ra1 Rb1 Rb3 Qc6+ Rcb7 Bb8 Nc5 Qc7 Rc3 Rb5 Rb1 Qd7 Rg8 Qe8 Rd7 Bdc7 Nd5 Bfd6 Nf6 Ne7 Qh3 Qc8 Rgd8 Bb6 Ng8 Bb6c7 Qg3 Bb6 Qe5 Bb6c7 Qf1 Bb6 h1R Nh2+ Qd5 Be4 Qg2 Bc2 Rd3 Bb6c7 Nb3+ Ka6 Rhg1 Ba5 Nc5+ Kb6 Rgf1
1RKq1k2/rR1r2b1/1Bn3Qr/P2NR1qr/ppn1Np2/1R3b1N/N7/1q6 w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 h4 exf4 Nc3 gxh4 Nb1 a6 a4 Qg5 b4 Qf6 a5 Qd8 b5 axb5 e3 Ke7 Bd3 Kd7 Bc2 Ke8 Ba4 bxa4 Kf2 b5 Kf3 c5 Ke4 h5 Ke5 f5 g4 h3 d4 b4 g5 f3 e4 f2 d6 f1Q g6 f4 d5 h2 d7+ Ke7 g7 c4 d6+ Kf7 Nh3 h4 Be3 c3 Qc2 Ne7 g8N Ra6 Bb6 Qc1 Ra3 Qd2 Rb3 Rh7 Nf6 Qe2 Re1 h1R Nd5 Qb5 Re3 Kg7 Ke6 Bb7 e5 Nc8 Re2 Kg8 Qg6+ Bg7 Re1 c2 Nbc3 c1R Na2 Nc6 Re4 Rc5 Ree3 Qf8 d8R Ra7 d7 Nd6 Rb8 Nc4 d8R Rh2 Rdc8 Qd8 Rc7 Kf8 Re2 Ba8 Rcb7 Rh1 Kf5 Rh6 e6 Rd1 Re5 Rd3 Ng5 h3 e7+ Kg8 Ke6 h2 e8N h1Q Nef6+ Kf8 Nh3 Qb1 Ndc3 Rcd5 Nfe4 Rd7 Nd5 Rd2 Bd4 Rh2 Bb6 Qc5 Nc7 Qcg1 Nd5 Qg5 Ne7 Rg2 Nf6 Rg4 Rc7 Rd1 Rd7 Rgh4 Rc7 Bb7 Rd7 Bc8 Ne4 Nd2 Kd6 R4h5 Ke6 Ba6 Rc7 Be2 Rcb7 Qe8 Kd6 Nc4+ Kc7 Rd6 Nd5 Bf3 Re3 Nd8 Rc3 Rd7+ Kc8 Qee7 Ra3 Nc6 Rb3 Qd8+
2NnKR2/BN1p4/p1P2q2/1Q3RbR/Np2r1q1/NR2q3/qrr5/k3n2q w - - 0 1 legal: proof: f4 b5 h4 e5 b4 exf4 a4 bxa4 h5 c6 h6 gxh6 Kf2 h5 Ke1 h4 c4 Qb6 b5 Qc7 e3 Qe5 b6 Qf6 c5 Qd8 Bb5 cxb5 d3 Bb7 Bd2 Bd5 Bc1 Bc4 dxc4 Bg7 Nd2 Bh6 Nb1 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 f5 g4 h5 c6 a6 g5 f3 g6 b4 c5 h3 g7 h4 b7 a3 e4 f4 c7 a2 c8N f2 e5 f1Q Nc3 f3 Nd5 h2 Nc3 f2 Nf3 h3 Nb1 Qe2 Qd2 f1R Qe3 Nc6+ Ke4 Nh6 b8N Ng4 g8R Rf2 Nc3 Bh6 Rg6+ Qf6 Rg5 Nd8 Rb1 a1Q Na4 Qaa2 Rb3 Re8 Rf5 Bg5 Nc6 Qd1 Qf4 Rb2 Nd2 Ne3 Nb1 Qg4 Na3 Nc2 Be3 Ne1 Na5 Ra7 Kd4 Rc7 Nb7 Rc6 Kc4 Rc7 Bd4 Rc6 Qf1 Rc7 Rg1 h1Q Rg3 h2 Rh3 Re7 Rh5 Qhg1 Qd3 h1Q Qe2 Kf7 e6+ Kg7 Qd3 Qe3 Qe2 Re8 e7 Ne6 Qf1 Qhg1 Kd5 Qh1+ Kd6 Kf7 Re5 Kg7 Qb5 Kg6 Re4 Kf5 Re5+ Kf4 Rf5+ Ke4 Rh2 Qc1 Bg1 Qe3 Rh5 Kd4 Bf2 Rf8 e8R Rf7 Rf8 Re7 Nc3 Re8 Qb6 Kd3 Na4+ Kd2 Qb5 Kc1 Nc2 Kb1 Na3+ Ka1 Bg1 Qh8 Bf2 Nf4 Bg1 Re4 Bf2 Ne6 Bg1 Bf4+ Ke7 Bg5+ Ke8 Qf6 Bf2 Rc6 Bg1 Rd6 c6 Rdd2 Bf2 Rdc2 Bg1 Qd3 Bd4 Qe3 Ba7 Nd8+
nR3QN1/1R3r1b/q6P/2n1qN2/4kn2/1R1r1p2/K1pBrrpN/1N2q1R1 w - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Bg2 f5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qb3 Ra5 Kc2 Bf4 gxf4 Qe7 Kb2 Ra6 Qd1 Ra8 Kc2 Qd8 Kb2 Kd7 a4 Ke6 d4 Kd5 h4 f1Q f5 b5 e3 c5 f6 g5 f7 c3+ Ka2 g3 f8N g2 h5 c2 a5 g4 h6 c4 a6 c3 a7 g3 Qe2 b3+ Ka3 b2 Rh5+ Ke4 d5 b4+ Kb3 Nf6 d6 Qc7 d7 Nd5 d8N Bf5 Nh7 Na6 Nc6 Rhd8 Ne5 Nf4 Ka2 Rd3 Bd2 Rf8 a8R Rf7 Ng4 Qe5 Nh2 Nc7 Ra3 Na8 Rb3 c1Q Qf2 c2 Ne2 g1R Nd4 g2 Qg3 Qcd1 Qg8 Qde1 Qf8 Qfe2 Rg5 Rf1 Rg7 Bg6 Nf5 Rf2 Na3 Q2f1 Rc1 b1R Rd1 Rc1 Nb1 Qee2 Re1 Qh1 Rf1 Re1 Rg1 Qf1 Nd4 Ree2 Nf5 Rf6 Ra7 Rf7 Rb7 Qe1 Ng4 Qh5 Nh2 Qe6 Kb2 Qa6 Nf6+ Ke5 e4 Bh7 Ng8 Qg5 Ra3 b3 Ka1 b2+ Ka2 Ke6 e5 Kd5 e6 Ke4 e7 Qgf6 e8R+ Qe7 Ra5 Qe5 Na3 b1N Rab5 Ne6 Rb3 Nc5 Reb8 Nc3+ Kb2 Nd5+ Ka2 Qad6 Nb1 Nf4 Qd8 Qde6 Qf8 Qa6+
R1r1RB2/1pr1Q3/B1rq2p1/r4r2/n1pP2KR/3k1nb1/N2B1p1R/4Bb2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Nc3 exf6 Ne4 f5 Ng3 f4 Ba3 fxg3 Bb2 Ra4 Bc1 Ra8 e4 Ke7 Ke2 Kd6 Kf3 Kc5 h4 Kd4 a4 c5 d6 f5 d3 b3 a5 g6 d7 f4 e5 b2 a6 b1R e6 Ne7 a7 Na6 h5 Nf5 e7 Rb6 e8R Nh4+ Kg4 f3 h6 f2 h7 Bd6 Qb3 Rc6 Qa3 Nf3 Bd2 Rf8 Rh5 Rf5 h8B+ Qf6 d8B Bd7 Re3 Rac8 a8R Be5 Rh3 Qd6 Bg7 Be6 Be1 Bc4 Bda5 Bb5 Rh2 R8c7 Nh3 g1R Bf8 g2 Bad2 Bg3 Ree8 Rh1 Ng5 g1R Ne4 Bc4 Rg2 Rh8 Nc3 Rgh1 Qb4 R1h5 Ra4 Rg8 Na2 Rgh8 Be7 Rhf8 Rh2 Rg8 Reb8 Rgc8 Bf8 Re5 Qb5 Rhf5 Kh3 Rce8 Rc8 Nb4 Rcb8 Nd5 Rb4 Nc3 Qb6 Rg7 Qd8 Rgc7 Qe7 Na4 Be2 Rd8 Bf1 Rdd7 Re8 Rd8 Be2 Rdc8 Bf1 Kd5 Be2 Ba6 Rh4 Bb5 Kg4 Kd4 Ba5 Ke3 d4 Bc4 Bd1 Bf1 Be2 Ke4 Bb5 c4 Bad2 Kd3 Ba6 Ra5
B1Nq1n2/R4NP1/1NK2p1p/b4p2/rn1Rr1q1/R1Rp4/2N2b1n/1k3nQ1 w - - 0 1 legal: proof: d4 a5 f4 d5 b4 axb4 c4 dxc4 d5 e5 f5 g6 Be3 gxf5 Bg5 Bc5 Bc1 Bf8 g4 Ke7 g5 Bh6 h3 Bf8 Be3 Ke8 Bd4 exd4 Nd2 Bd7 Rc1 Ba4 Rb1 Bc2 Ra1 Be4 Nb1 Bg2 Nd2 Bf3 Nb1 Bg4 hxg4 Bc5 Rh4 Be7 Rh1 Bf8 Kf2 Ke7 Kf3 Kd6 a4 Ke5 e4 b5 g6 c5 a5 f6 g5 c3 g7 d3 g6 Kd4 d6 c4 e5 c2 a6 c1N d7 b3 a7 b2 e6 c3 e7 b4 e8N c2 Bg2 b3 Qd2 Bc5 Na3 b1Q Qe3+ Kc3 Nd6 Kb2 Nc8 Na2 Nh3 c1B Nc2 Bd2 Ng5 Qg1 Nf7 Nb4 Ra3 Nh6 g8R Ng4 g7 h6 Qg5 Qd4 Rc1 Bc3 Qe3 Nh2+ Kf2 Qe4 Qd4 Qh4+ Ke3 Qg4 Re8 Rf8 Re7 Re8 Be4 Bb6 Qc5 Be1 Kd4 Bf2+ Kc4 Ba5 Kb5 Qc7 d8R Nd7 Bh1 Nf8 Rd4 Qd8 Rc7 Re4 Qb6 Rb8 a8N Rb7 Rc3 Ra7 Rca1 Ra6 R1a2+ Kb1 Qa7 b2 Nab6 Kc1 Bg2 b1N Kc5 Nd2 Bf3 Re1 Ba8 Kb1 Kb5 Nd5 Kc6 Re4 Qb8 Ndf1 Qg3 Bb4 Qg1 Ra4 Ra1+ Kb2 Re1 Ba5 Re3 Kb1 Re2 Rf4 Re7 Re4 Ra7 Nb4+
1RRb1r1r/5rQB/3R3n/N3rnqb/Np1b1n2/1PNK1R2/1N1br1k1/7r w - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 f5 cxd4 b3 a5 f6 a4 Nh3 a3 Bb2 axb2 Ng1 exf6 Nc3 f5 Nb1 f4 Kd2 Ke7 c4 Kd6 a4 Ke5 e4 d5 h4 g5 c5 b5 c6 f5 c7 d3 h5 g3 a5 d4 a6 g2 a7 g4 h6 f3 h7 Kf4 e5 Kg3 e6 b4 e7 f4 e8R f2 Nc3 b1N+ Kc1 d2+ Kc2 d3+ Kb2 f3 Ra2 Nc6 Qe2 d1R Ra3 d2 Kc2 Re1 Qa6 d1R Qb6 Bh6 Bc4 f1R Re5 f2 Rf5 Rd5 Ba6 Qg5 Nf3 g1B Bd3 Nce7 Qf6 Re2+ Nd2 Rde5 Rf3+ Kg2 Qg7 g3 Ra6 Bg4 c8N Bh5 Rd6 Nf5 Ne7 Rf8 a8N Rfe1 Rh3 f1R Nb6 Bd4 Nba4 Rff2 Nc6 Rh1 Na5 Rf7 Nd1 Nc3 Ndb2 Nd5 Rh4 Bb6 Rc4 Nf4 Rc8 Bd8 Be4 Kh2 Rb8 g2 Bd3 g1B Be4 Ne6 Kd3 Kg2 Nb1 Rf1 Nbc3 Be3 Qf6 Bd2 Rc8 Bg7 Qg6 Bgf6 Qg7 Ngh6 Rb8 Rc5 Rc8 Bd4 Rb8 Re5 Rc8 Rhf8 h8R Rh2 Rb8 Rfh1 Rg8 Ng3 Bg6 Ngf5 Bh7 Nf4+ Kc2 Rfe8 Rdb6 Bg4 Nc5 Bf6 Bg6 Rc8 Re8 Ng8 Rd6 Rh8 Bh7 Ngh6 N5a4 Bh5 Red8 Rff8 Re8 Rc7 Red8 Rcf7 Rdc8 Nd5 Kd3 Be7 Na2 Bd8 N2c3 Nf4+
r6r/2k1N2p/q1N1q1Q1/R1n2b1R/qq4RP/3b1nKr/pb1n1B2/2N2N1R w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 f5 b5 e3 bxa4 f6 g4 Bb5 exf6 Bd3 f5 Be2 f4 Bf3 gxf3 Kf2 a5 h4 d5 c4 Kd7 g4 f5 b4 d3 e4 d4 g5 d2 g6 a3 b5 a2 c5 a4 b6 a3 g7 d3 b7 Qf6 e5 Nh6 g8N Ng4+ Kf1 f2 Kg2 f1B+ Kf3 Na6 b8N+ Kc7 c6 Nc5 e6 Ne5+ Kf2 f3 e7 f4 e8R Qe6 Bb2 Bg7 Qe2 d1Q Rd8 d2 Re8 Qdb3 Qe4 d1Q Qc2 Bd3 Ne2 Qb4 Nd2 Bf6 Qb1 Qda4 Bd4 Qa6 Nf1 Bg7 Kg1 f2+ Kh2 f3 Nc1 Bd7 Kg3 Qaa4 Nh2 f1R Ne7 f2 Rg8 Nf3 Qc2 Re1 Nf1 Re2 Be3 Bb2 Rg4 Bb5 Qg6 Bd3 Nd2 f1Q Bd4 Rh2 Bf2 Qfd1 Nf1 Qa6 Qe4 Qda4 Qg6 Kb6 c7 Kb7 Rb1 a1N c8R a2 Nbc6 Nab3 Rf8 Bc8 Rf5 Nbd2 Rd5 Kc7 Rh5 Ba1 Rb3 Bb2 Ra3 Qf6 Re4 Bf5 Rc4 Qe6 Rg4 Qab3 Ra5 Q3a3 Rc4 Qaa4 Rg4 Rh3+
bn3N2/2p5/RRr1Q1n1/3q3k/qNP2p1r/3R1bnB/RN3bNn/n4n1K w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 e4 dxe4 g5 h6 f5 g6 Bb2 gxf5 g6 f4 Bf6 Ra4 Bh4 Ra8 Bg5 hxg5 Kf2 f5 Kg2 e5 h4 b5 d4 e3 c4 e4 a4 f3+ Kh2 f2 d5 e2 h5 e1N h6 b3 d6 f4 a5 b4 g7 Kf7 d7 Kg6 h7 b2 a6 e3 a7 b3 Ra2 e2 Qd6+ Kh5 Ra3 g4 Bh3 Nc2 Qd1 f1N+ Kg2 e1N+ Kf2 Bb7 Ra6 Na1 Qd6 Nf3 Kg2 g3 Nc3 b1B Na4 b2 Qe6 Ne7 g8N N3h2+ Nf3 Ng6 Ne7 B1e4 Nd5 b1Q Nb2 Qa2 Nb4 Qa4 Rb6 Qg5 d8R Bc5 Rd3 Qd5 Rg1 Bd4 Kh1 Bf2 Rg2 Bc6 Ne1 Bf3 Qe3 Rf8 h8N Rf6 Qe2 Bb7 Qe4 Rc6 Qe6 Na6 Nf7 Rh8 a8R Nb8 Raa6 Ba8 Ne5 Kg5 Qg8 Rh4 Nd7 Kh5 Qe6 Be3 Nd1 Bd4 Nf8 Be3 Nec2 Bd4 Nce3 Bc5 Kg1 Bd4 Ra2 g2 Kf2 g1N Nb2 Bc3 Ng2 Ne2 Qg8 Bh8 Qe6 Neg3 Kg1 Bc3 Nd1 Be1 Nb2 Ne2+ Kh1 Bg3 Qf7 Bf2 Qe6 Neg3#
2brN1q1/1Kp1N1B1/1RP1BN2/B1qB4/1n3rqr/1pn5/1q1Q2q1/1N2brk1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 a4 hxg4 e5 f5 e6 f4 Ra3 dxe6 Be2 e5 Bf1 e4 Rg3 fxg3 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 g5 Kb5 Kd5 f4 Kd4 h4 e3 c4 e4 a5 e2 d3 e1R h5 g2 a6 g3 c5 g4 c6 e3 f5 e2 h6 b3 h7 b2 a7 Bd7 f6 Na6 f7 Bb4 f8N Ne7 Nh3 g1Q Bg2 Rf1 Bd5 e1R Nf4 g2 Bd2 g3 N8g6 Qg8 Nh5 Rd8 a8B Re4 Nf6 Ref4 Qc2 b6 Bb7 Qe3 Qd1 g1Q Bc8 g2 Be1 Qgf2 Qd2 g1Q Rh3 Qfg2 Rf3 Nf5 Ne7 Ng3 Rf2 Ne4 Rf3 Be8 Bce6 Bd7 Rh3 Bc3 Rh1 Nb4 Rh2 Na2 Ka6 b5 Kb7 b4 Rh4 b3 Rh5 Q8g4 Rh4 Rhe8 h8B Nb4 Bg7 Rh8 Rh5 Na2 Re5 Rh4 Rh5 Ba5 Re5 Nec3 Re4+ Kc5 Rb4 Qeg3 Rb6 Kd4 Qd1 Ke3 d4 Nb4 Qc2 Ne4 Qd2+ Kf3 Bc4 Qe3 d5 Nc3 d6 Qc5 Bcd5+ Ne4 Qc2 Ke3 Bd2+ Kf2 Be1+ Kg1 Qd2 Be8 d7 Nc3 Bf8 Qg8 Bh6 Q3g4 Bg7 Rc8 d8N Bd7 Nf7 Rd8 Na3 b1Q Nd6 Qc2 Nb1 Qb2 Nde8 Nb5 Qd1 Nd3 Bc3 Bb4 Be5 Bd2 Bc3 Be1 Ba5 Nb4 Qc2 Nc3 Qd2 Bc8+
3r3q/pQ3p2/1n2rNkB/K5N1/bNb1bB1r/PnbB3B/1b5N/qR1r4 w - - 0 1 legal: proof: c4 e5 f4 b5 g4 bxc4 b4 g5 d4 exd4 Nd2 gxf4 g5 h5 Rb1 Nh6 Rb3 Ng8 Rg3 Nc6 Rg2 Nb8 Rg4 hxg4 h4 d5 e4 c5 e5 g3 g6 g2 h5 f3 b5 c3 h6 c2 a3 c4 b6 c3 e6 f2+ Ke2 d3+ Ke3 d4+ Ke4 Bb4 b7 Ke7 h7 Kf6 e7 Na6 e8B Ne7 b8B Nd5 g7 Kg6 g8N Bb7 Qe1 Nc5+ Ke5 Nb6 Ngf3 g1R Bh3 f1B Nh2 Nb3 Bb5 Be4 Ndf3 d2 Ng5 d1R Nf6 d3 Qe2 d2 Qg2 Re1 Bd3 d1B Bf4 c1Q Be3 Bf5 Qb7 c2 Bd6 Rc8 Bf8 Qb1 Bh6 Be4 Bd2 Qg8 Bf4 Bc3+ Kd6 Re8 Kc7 c1B Kd6 Qa1 Kc7 Bf5 Kc6 Be4+ Kb5 Re6 Ka6 Rg4 Kb5 Qg7 Rg1 Rd8 h8N+ Kf5 Rh1 B1b2 Ng6 Qh8 Ne5 Bc2 Ka6 Rd1 Nc6 Kg6 Nb4 Rh4 Kb5 Nd2 Ka5 Ba4 Bc2 Bc4 Bd3 Nf3 Rg1 Nd4 Re1 Rd2 Rc1 Rd1 Rb1 Nb3#
nbn5/1r5p/1Q2R1nP/N1R2n1b/2B2B2/2KB1qB1/RqR1q2p/1kbq2r1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 h5 axb4 Nd2 f5 Ndf3 fxe4 Nh4 gxh4 Kd2 Kf7 f4 Ke6 c4 Kf5 a4 d5 g3 b5 a5 e5 a6 b3 a7 b2 c5 b1Q c6 b4 c7 e3+ Ke2 Ke4 g4 b3 h6 b2 g5 h3 g6 h2 f5 d3+ Ke1 d2+ Ke2 d4 f6 Qc2 f7 b1Q g7 Qf6 Ra6 Bd6 f8B Nd7 Nh3 Nb6 Ra1 Rb8 a8B+ Rb7 Ra2 Ne7 Ra6 Rg8 Qe1 d1N+ Qd2 d3+ Ke1 e2 Ra1 Ne3 Nf4 N3f5 Ng6 Qb5 Qa5 d2+ Kf2 Kd3 Ra2 d1Q Qa6 e4 Bf4 e3+ Kf3 Kc3 Ne5 e1B+ Be2 Qcb2 Ke4 Kc2 Bc4 e2 Nc6 Bd2 Re1 Kb1 Na5 Bc1 Qa7 Bd7 c8R Be8 Rc5 Nec8 Bg3 Bc7 Bfd6 Bh5 Bdf4 Bb8 Qa6 Ra7 Bb7 Na8 Qb6 Qf7 Bbd5 Rb7 Bd3+ Qbc2 Bc4 Qf6 Rf1 e1N Rf2 Ng2 Re2 Qf8 Kd5 Ngh4 Re6 Ng6 Ke4 Rh8 g8R Qf6 Rg7 Rg8 Rgc7 Ngh4 Be1 Rg1 Beg3 Ng6 Be5 Ne3 Kd4 Qff3 Bef4 Qdf1 Be2 Qcd1+ Kc3 Q1g2 Rc2 Nf5+ Bed3 Qge2 R7c6 Rg7 Rc7 Rd7 Ra7 Rg7 Nb3 Rd7 Raa2 Rb7 Na5 Qb2+
K1r3rQ/b4RbB/1q2bN2/R2pk1b1/3q1n1q/2q3Bp/1B1P4/BRR2nr1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 b5 gxh4 Nc3 f5 Nd5 fxe4 Nb4 cxb4 Ke2 Kf7 Ke3 Ke6 Kd4 a5 Kc5 d5 g4 h5 f4 h3 c4 h4 g5 a3 f5+ Ke5 f6 e3 b6 h2 f7 a2 b7 b3 g6 h3 g7 b2 Qe2 b1Q Bg2 a4 Bf3 a3 Be4 Na6+ Kc6 Nh6 g8R Be6 b8B+ Nc7 c5 Ng4 Qb5 e2 Kb7 e1B c6 Bg7 f8B Ne3 Qb6 Nf1 Bg2 Bh4 Qb4 Bg5 Ne2 Qb2 Rg1 h1R Bf3 Qc3 Bb2 Qd4 Rb1 a1Q Nf4 a2 Qc3 Qd6 Rg4 Rg1 Nh5 Qc5 Rf4 Qa5 Ba7 Rc8 Nf6 Qc5 Be4 Qd6 Rd1 Qc1 Bf5 a1B Bb8 Qc2 Rb1 Qd8 Qa5 Qcc3 Qa8 Qd6 Bh7 Qd8 Bc1 Bb2 Rf2 Ba3 Rf4 Bd6 Bb2 Bg4 Ba1 Ke6 Qa6 Qc2 Be4 Bh4 Rf3 Bh2 Ra3 Qd6 Ra2 Re8 Qa8 Qcc4 Rc2 Bf5 Rcc1 Qcc3 Bg2 Bg4 Nh7 Kf5 Rb5 e5 Ra5 e4 Nf6 e3 Be4+ Ke6 Bb1 e2 Bh7 e1Q Be7 Bg5 Rb1 Qh4 Rf8 Qce3 Rf7 Be5 Bg8 Kf5 Bf8 Ne6 c7 Qea3 c8R Bg3 Rcc1 Qac3 Bc7 Q6c5 Qb8 Qb6+ Ka8 Bd6 Qc8 Kf4 Bd8 Bb8 Bc7+ Kf5 Bg3 Rd8 Qc5 Nf4 Qc8+ Ke5 Bh7 Be6 Ba3 Rde8 B3b2 Rhf8 Qc5 Rc8 Qe7 Rfe8 Qf8 Red8 Qh8 Re8 Rd7 Rg8 Rf7 Ba7#
3RB2b/1n2pp2/1qnN4/2p2BN1/bNr4r/B1B5/1nN1kPnK/2n1qbQ1 w - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 g5 h4 gxh4 a4 a5 b5 d5 Ra2 dxe4 Rb2 Ra7 Rb3 Ra8 Rb4 axb4 d4 Kd7 g4 Kd6 g5 Kd5 a5 h5 g6 c5 b6 c3 b7 h3 a6 h4 a7 c2 g7 b3 Qd2 e3 Ne2 Kc4 d5 b2 d6 h2 d7 h3 Rg1 h1Q Nd4+ e2 Nc3 b1N Na2 h2 Qd1 Nc6 b8B Nc3 Nb4 Ba6 Bh3 Rh4 Bf5 Na4 Be5 Nf6 g8N Bg7 Nh6 Ne4 Ba3 c1N Ndc2 Bh8 Bc3 Qb6 d8N Nd6 Ne6 Nb7 Ng5 Nb2 Rf1 Rd8 a8B Rdd4 Rg1 Qe4 Rg3 h1B Rd3 Qe5 Rd2 Rde4 Rd8 Rd4 Ng8 Bg2 Nf6 Bb5 Ne8 Ba4 Nd6+ Kb3 Qd3 Bf1 Qg3 Rc4 Qh2 Qe4 Qg1 Qh1 Kd2 e1N Ke3 Ng2+ Kf3 Ne3+ Kg3 Qe4 Bd7 Ng2 Be8 Qe1 Be5 Rhd4 Kh2 Kc3 Bg7 Kd2 Bf6 Rd3 Be5 Ke2 Bc3 Nba5 Bb7 Rdd4 Bc8 Nb7 Bf5 Rh4+
1B1r1b2/3NrNb1/k1q1Br1B/4p3/1pnNP3/b2q3N/1nRq3p/1K1B2Qb w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 f4 h6 gxh6 Ra2 h5 Ra3 h4 Re3 fxe3 g4 Kd7 d4 Kc6 f4 Kb6 g5 c5 d5 h5 a5+ Ka6 g6 b5 f5 h3 f6 b3 d6 e2 Kd2 e1B+ Ke2 b2 g7 h2 d7 h4 f7 c3 Kd3 c4+ Kc2 h3 Na3 b4 Qh5 b1Q+ Kd1 c2+ Ke2 c3 Kd3 Rh7 Bd2 c1B+ Nc2 Nf6 g8N Ng4 Qc5 Nc6 Qd4 Ba3 Bh6 Ne3 Nf6 Nc4 Be2 e5 Qc5 Bd2 Bd1 Qc7 d8N Bg4 Qe3 Bf3 Nd7 Bg7 f8B Qb7 Ne6 Rd8 Bd6 Bg2 Ng5 Nb2+ Ke2 Qa8 Nd4 c2 Nf7 c1Q Bb8 Qcc2 Qg3 Bg5+ Ke1 Be7 Qg5 Qa2 Qg4 Qcb1 Kd2 Qd3+ Kc1 Bef8 Qg6 Qd5 Qg4 Qd2+ Kb1 Qb3 Nge2 Qbc3 Nf4 Qf3 Rf1 h1R Rf2 h2 Nh3 Rf1 Qg6 Bh1 Qg1 Qfc3 Re2 Qdd3+ Rc2 Rf6 Ne2 Kb5 a6 Na5 a7 Qac6 a8B Nac4 Nd4+ Ka6 Bb7+ Ka5 Bc8 Qcd2 Nc5 Kb6 Bf5 Ka5 Nd7 Ka6 Be6 Bh8 Nfg5 Re7 Nf7 Bhg7
RrNbR3/b7/nNkrQ3/K1nr3B/2b1p2p/1R1nN2p/3RPNqq/2b5 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 axb4 c4 d5 Bb2 dxc4 Bg7 f6 Bh6 gxh4 g5 Bf5 g6 Bc8 Bg5 fxg5 d4 Kd7 Kd2 e5 f4 h5 a4 c5 a5 b5 d5 h3 f5 c3+ Kc2 b3+ Kd3 b4 Kc4 e4 Kb5 g4 a6 c4 g7 g3 f6 h4 f7 b2 a7 c2 d6 c1B Nd2 b1R Ra2 g2 Qc2 c3 Ngf3 g1B Qd3 c2 Nh2 b3 Nc4 b2 Bg2 Qg5+ Qd5 Nf6 g8N Rh6 Ka5 Na6 Bf3 Rb8 a8R Qg2 Bh5 Be7 Ng4 Ba7 Qe6+ Kc6 f8N Nd7 Nf2 Ndc5 Nd7 Bd8+ Ndb6 Ra1 Rf1 b1Q Ne3 Qb2 Rd1 Qe5 Ra3 Qeh2 Rd2 Rb1 Rb3 Rg6 Qf5 Be6 d7 Bc4 Qe5 Rd6 Ne7+ Kc7 Nec8 Kc6 Qe6 Rb2 Rb4 Rb3 Rb5 Rd3 Rb3 Rd5 Qf7 Bf6 d8R Be7 Re8 Bd8 Bf3 Bb2 Bg4 c1N Bh5 N1d3 Qe6 Bc1
2b2R2/1K1N2b1/3brnpB/1NqkrpN1/2r5/1Bnbq1Np/1B3p1P/3BQ3 w - - 0 1 illegal: No possible last move
2KbB3/2p1q2r/3pNR2/rQ3npp/2PBR1n1/3BnBRb/1q5q/k5qR w - - 0 1 legal: proof: g4 a5 h4 g5 b4 axb4 d4 e5 Nd2 exd4 Ne4 gxh4 g5 f6 g6 Nc6 Ng5 fxg5 Bf4 Nb8 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 b5 Kd5 h5 c4 d6 e4 d3 f4 b3 a4 h3 f5 b2 g7 b1Q a5 h2 a6 b4 a7 d2 Nh3 b3 Ra3 b2 Nf4 Qe7 Ne6 Qc2 Bd3 Nh6 g8R Nd7 Kc6 Ke5 f6 b1Q f7 Qcb2 Qa4 d1N Be3 Rh7 Rg7 Nf5 Qb5+ Nc5 Bf2 Nde3 Rg6 Q1c1 Rf6 Qg1 Rb3 Bg7 f8R Bh8 Re8 Bg7 Nf8 Kd4 e5 Ne4 e6 Bd7+ Kb7 Bh8 Bh4 Nf2 Bg3 Nfg4 Bf2 Rd8 a8B Bg7 Rb4 Kc3 Ra4 Bc8+ Kb8 Bh8 Bf3 Bd7+ Kb7 Ra8 Ra2 Ra5 Ra3+ Qb3 Kb8 Kb2 Kb7 Qb4 Rb3+ Ka1 Rc3 Qd8 e7 Qb2 Ne6 Bg7 Rg8 Bf8 e8B Be7 Rgg6 Bc8+ Kb8 Qd7 Rg7 Bd8 Re7 Nf1 Bd4 N1e3 Nf8 Qe6 Rb3 Qf7 Re4 Qe7 Ne6 Qd1 Rg1 h1Q Re1 Qh2 Rh1 Bb7 Rc3 Bd5 Kc8 Qdg1 Rc2 Ba8 Rg2 Bc6 Qb7 Ba4 Rg3 Bd1 Qd5 Be2 Qc6 Bf1 Qb5 Bh3
RnrBn1B1/1q5p/3b1br1/2N3RR/prp1Q3/2B2rRP/3p1K2/Bq3b1k w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 dxc4 d5 f5 Na3 fxg4 Nb5 e5 Nd4 exd4 f4 Kf7 e4 Kg6 b4 Kh5 f5 Kh4 e5 c5 b5 a5 b6 g5 e6 a3 e7 c3 e8R c2 h3 Kg3 b7 a2 f6 d3 d6 d2+ Ke2 a4 f7 Qd7 Bg2 Nf6 Re5 Ne8 Rb1 a1B Bb2 c1R Qc2 Rf1 Bd5 Rf3 Qe4 Kg2 Bc3 g3 Rb5 g4 Rh5 Ra5 Rb3 Rb5 Bc4 Qc7 d7 Bd6 d8B Rb4 f8R Bd7 Bg8 Bb5+ Kd1 Bd3 Ne2 c4 Nc1 Bf1 Rg1+ Kh2 Rg2+ Kh1 Nd3 Qb6 Nc5 Qa7 Re2 g2 Rff5 g1R Rfg5 g3 Re3 Nc6 b8B g2 Rb2 Qb7 Rb1 Rf6 Reg3 Rf3 Bbc7 Bb2 Bdf6 Nb8 Bcd8 Ba3 Ba1 Bb2 Bg7 Bc3 Rb3 Bf6 Rd3 Bfe7 Bgc3 Bf6 Rd4 Bde5 Rd7 Bf4 Rc7 Bd6 Rc8 Qb6 Bf7 Na6 Rf5 Nec7 Rg8 Qb7 Ra8 Nb8 Rg7 Rg8 Be7 Rc8 Bd8 Ne8 Bg8 Bd3+ Qe1 Rgf1 Re5 g1Q Rg4 Bg6 Ke2 Rg3 Qb1 Rff3 Qc2 Qb1 Ref5 Rd3 Kf2 Rde3 Rf3 Bd3 Rg6 Bf1 Qe4 Rg4 Rg7 Rf4 Rg2 Rg4 Rff5 Rg7 Rfg5 Rg6 R2g3+ Rf3+
2B5/1p1bp3/2q1NR1r/kP2nK2/NNn1p1R1/1R1q1pbQ/5rp1/1RN2b1q w - - 0 1 illegal: No proof kernel
1Qn1nr2/2RBNR1B/p1pnRb1R/1pB1b1qb/4K3/rP6/n3p1p1/3k1B2 w - - 0 1 illegal: No proof kernel
4R3/3RN1nB/1N2R1n1/3R1nrB/1PKnq3/1p5b/R1pnrp1k/2R4n w - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 b4 g5 h4 gxh4 a3 Nc6 b5 Nb8 d3 a5 Qa4 b6 Qc2 Bb4+ Bd2 a4 Qb3 axb3 Bc3 Bd6 Ba5 Bb4+ axb4 bxa5 Kd2 Ke7 Kc3 Kf6 g4 Kg5 e4 h5 d4 c5 b6 f5 e5 f3 e6 Kf4 e7 Kg3 e8B a4 g5 h3 d6 f2 g6 a3 d5 f4 g7 h4 b7 h2 d7 h3 d6 f3 Kc4 a2 Kd3 c4+ Kd4 c3 Kc5 Nc6 b8R Nge7 g8R+ Ng6 Bc4 f1N Rb6 f2 Nd2 Ra5+ Bb5 Qe7 d8R Qe4 d7 Ne7 Re6 Nf5 Nc4 Ng7 Nf3 Nd2 Rhc1 h1N Nh4 Kh2 Nb6 Ng3 Nf5 Rh7 Ne7 N3f5 Bf7 Rh5 Rh8 Rg5 Rhe8 Ra8 Bd3 Ra6 Rab1 a1N Rb2 Nc2 Ra2 Ncd4 Bc2 Nb1 Bd3 c2 Kc4 Ra7 Be2 Ra5 Bg8 Re5 Bh7 Nd2+ Kc3 Kg2 Bg4 h2 Bh5 N2f3 Kc4 h1N Rg8 Kh3 Rde8 Kg2 d8R Kh2 Rd5 Bd7 Rd8 Bc8 R8d7 Nd2+ Kc3 Ba6 Re8 Bf1 Ra3 Bh3 Ra2 Qf4 Kd3 Re2 Kc3 Qh4 Kd3 Qe4+ Kc3 Nb1+ Kc4 Nd2+
1k4r1/1NRb1p2/rrpp4/b2b1b2/NR1R1q1R/2Rb1BP1/1bB4K/5R2 w - - 0 1 legal: proof: d4 b5 c4 e5 b4 a5 f4 exf4 d5 Nc6 d6 Nd4 Kd2 axb4 Ke1 b3 Bb2 b4 Bc1 Nb5 cxb5 Qe7 Qd3 Qg5 Qd1 Qd8 g3 f3 Qd3 g5 Be3 h5 Qd1 h4 Bd2 c6 Bc1 f2+ Kd2 h3 Qe1 Nf6 Kd1 Nd5 Bf4 Nc7 dxc7 gxf4 Qd2 Rh7 Qd5 Rh8 Qg2 hxg2 a4 f3 h4 b2 e4 b3 b6 d6 h5 Kd7 a5 Qg5 b7 Qd5+ Nd2 b1B b8R b2 h6 Rh7 a6 Bd3 e5 b1B e6+ Ke7 a7 Bc4 Ne2 g1B Ra3 B8a6 c8R Qb5 Nc3 Qb6 Nde4 Qc5 Na4 Qb6 Bg2 f1B Ke1 Qb5 Nec5 Bd5 Nb7 Rg7 h7 Qc4 h8R Rg8 Rc3 Bb6 R8h4 Bfd3 Rf1 Ba5 Kf2 Bg7 Kg1 f2+ Kh2 Qf4 Bh1 Bf5 Bf3 Bbd3 Rc7+ Kf6 e7 Ke6 Ra1 f1R e8B Rb1 Bd7+ Ke7 Bg2 Rb4 Rf1 Rb6 Bf3 Bd4 Nd8 Bc8 Nb7 Bfe4 Bf5+ Bd7 Rc4 Bb2 Rc3 Qe3 Bh7 Bf5 Rd4 Qf4 Bg6 Rg7 Rh8 Rgg8 Rh4 Rab8 a8R Ra6 Nbc5 Rb4 Rb8 Rb3 Rbb4 Kd8 Ra7 Kc8 Nb7 Kb8 Bh7 Bh3 Bf5 Be2 B5e4 Bhf5 Bc2 Bed3 Nd8+ Rb6 Rc7 Ra3 Nb7 Rb3 Re4 Ra6 Rbd4 Rbb6 Rb4 Qg4 Red4 Qf4
q1R1b1kB/KbrBnN2/1Br4p/1pb4B/8/3nB1B1/N2qnRP1/1r5q w - - 0 1 illegal: No possible last move
1r1k3r/1b1B4/1b3qnB/2PbNp2/BrBRB1pn/K1rB2rR/N2n4/8 w - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 a5 f5 axb4 Nd2 e6 Nb1 exf5 g4 g5 h4 Qb6 hxg5 Qc7 g6 Qd8 g5 Ke7 Qd2 Ke8 Qf4 Ra6 Qh4 Ra8 Qg4 fxg4 Kd2 h5 e4 d5 c4 b5 Kc2 f5 Kb2 b3 a4 d3 g7 h4 a5 d2 g6 d1R e5 d4 a6 h3 e6 d3 a7 d2 e7 h2 Be2 b4 Nc3 Nd7 Ra3 Rb8 a8B Bb7 Na4 Ne5 Ra2 Nf3 Bf1 Nh4 Bd3 Kd7 Nf3 Rg1 Nc3 d1R Ra3 Rg3 Bh6 Rc1 Rd1 h1B Na2 Rc3 e8B+ Kc8 Ne5 Ne7 g8B Bhd5 g7 Neg6 Bgf7 Qf6 g8B Bc5 Be6+ Kd8 Ba4 Be3 Bed7 Bb6 Kb1 b2 c5 Rb3 Kc2 b1N Rd2 Rc3+ Kb2 b3 Bf7 Bg2 Rd1 Nd2 Bfc4 Bc8 Bae4 Bb7 Rh1 Bf3 Rh3 Bh1 Bab5 Bf3 Ra4 Bg2 Ka3 b2+ Bb3 b1R Rd4 Bh1 Bbc4 Rb2 Bec6 Bd5 Ba4 Rc1 Bbc2 Rb4 Bb1 Rgg1 Be4 Rg3+ Bbd3 Rc3+
2q1B3/4Pbq1/3b1b2/N1n1q2N/b2RN2B/N2Rr2p/p3nn1K/N1N2k1n w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 e5 f4 exf4 g5 b5 Be3 bxa4 Bc1 g6 Qd2 f3 Qf4 Ra6 Qf5 gxf5 h5 Rg6 hxg6 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 g7 d5 g6 f5 e5 h5 e6 a3 b3 h4 Ra2 d3 b4+ Kd4 c5 h3 c6 a4 b5 d2 b6 d1Q c7 Bd6 b7 Nf6 g8N Nbd7 b8N Nc5 Ne7 Re8 Ra1 a2 g7 a3 Ne2+ Kd3 Kg1 d4 g8N f2+ Kh2 f3+ Bf4 Nfe4 Na6 Qe1 Bg2 f1Q Nbc3 f2 Be5 f4 Bh8 f3+ Be5 Kd2 Nb8 d3 Nb5 Bd7 c8N Ng3 Nc1 Ne2 Rb1 a1B Nbc6 a2 Bg3 Bf6 Ncd4 Bc6 Na3 Ba4 Ra1 Qd7 Nec6 Qg7 Rb1 Ke3 Rb2 d2 Na5 d1N Rb3+ Qc3 Rg1 Qe1 Ndc2+ Kd2 Bh1 f1B Na1 f2 Bc6 Bg2 Rb4 Bd5 Rd4+ Ke3 Rg2 Re7 Be8 f1N+ Kh1 Kf3 Bh4 Nfg3+ Kh2 Nh1+ Rg3+ Kf2 Na1b3 Bg5 Nf6 Kf1 Nh5 Bf6 Na1 Qc2 Nb7 Ndf2 Na5 Rb7 e7 Rb3 Rb4 Bf7 Rd4 Bb8 Nd6 Re3 Ne4 Bd6 Nc3 Qf5 Ne4 Qc3 Rc4 Qce5 Rd4 Nf4 Rf3 Qc8 Rg3 Re2 Rc3 Re3 Rcd3 Ne2+
2B2rbR/RN4rr/1K6/1b3B2/bPr1pk1b/1prB3p/BBBN3n/3n4 w - - 0 1 illegal: No proof kernel
rB4rq/nrBRb1nB/pB3Bq1/PN2N2n/2b3rK/4B3/3n4/3Rrn1k w - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 f5 Nc3 f4 Qf3 hxg6 Qd3 g5 Qg3 fxg3 Nb1 g4 f4 Kd7 d4 Ke6 a4 Kd5 h4 g5 b4 c5 a5 e5 h5 c3 b5 g2 Kf2 e3+ Kg3 Ke4 h6 a6 h7 e2 b6 e1R f5 c2 f6 c4 d5 c3 d6 Ne7 d7 Nf5+ Kh2 g3+ Kh3 Be7 f7 Rg8 f8B Nc6 h8B Ng7 b7 Na7 Be3 c1R b8B c2 Ne2 Kf3 Bd2 g1R Nec3 g2 Be3 e4 Nd5 g4+ Kh2 g3+ Kh3 Qe8 Nbc3 Rb1 Bd3 c1N Nc7 Nb3 Ra4 Nd2 Bh6 e3 Bg5 e2 Rb4 Nf1 Rg4 Rb7 d8B Be6 Bh7 Bc4 Nd1 Ne3 Bf6 Ref1 Nd5 Qh5+ Bh4 e1N Nf2 Bc5 Bd3 Ne6 Bc3 Qh8 Bdf6 Ng7 Bh7 Nd3 Bhg5 Nf4+ Kh4 Nfh5 Bfd6 Bb4 Bdc7 Be7 Rd4 Rc1 Rh3 Rce1 Rd1 Nf1 Bd3 Rh1 Ng4 g1N Ne5+ Kg2 Bd4 Rh2 Nc3 Kh1 Nb5 g2 Bh7 Nf3+ Kg4 N3d2 Rd3 Rh3 Bdb6 Rg3+ Kh4 g1Q Rd7 Qg2 Bh6 Qe4+ Bf4 Qg6 Bfe3 Rg4+
5N2/2r5/R1bqrqr1/1k2qR1r/N1Rb1N1P/3p1n2/R1B3bB/1KqN4 w - - 0 1 legal: proof: g4 b5 d4 c5 b4 cxd4 a4 a5 f4 e5 Qd2 exf4 axb5 h5 b6 hxg4 b5 Na6 Qb4 axb4 bxa6 Rh7 Be3 Rh6 Bc1 Rh8 Kd2 f5 h4 d5 e4 Kd7 c4 Kc6 Kc2 g5 e5 b3+ Kb2 g3 b7 g4 b8R g2 c5 f3 e6 f4 e7 g3 e8R f2 a7 d3 Ra2 d4 Be3 f3 Re5 d2 Nc3 d1Q Na4 d3 Ra1 Bd7 Rh2 Rh5 Ra3 Qe1 Bd2 Nf6 Rf5 Qe5+ Kb1 b2 Ne2 g1Q Bb4 g2 Nac3 Nh7 Nd1 Ng5 Nf4 Bg7 Rc8+ Kb5 Be2 f1B c6 f2 c7 Nf3 Bd6 Bc6 Ra6 Rb8 a8N Rb7 Nb6 Qf6 Rh3 Qh2 Nd7 g1R Nf8 Rg6 Rg3 Bh3 Rg2 f1R Rf2 Re1 Rg2 Nd4 Bf3 Qg3 Bd5 Qh2 Bb3 Nf3 Bc2 Bh8 Bc5 Bg7 Bg1 Qg3 Rd2 Bg2 Bh2 Re2 Rca8 Re3 c8N Rc7 Nb6 Re4 Na4 Re2 Nd5 Qed6 Re8 Re6 Rc8 Qge5 Rf2 Bh6 Re2 Be3 Nf4 Bc5 Re4 Be3 Rc4 Bd4 Rca8 Qfe7 Rb8+ Bb7 Rc5+ Kb4 Ka2 Q7f6 Rc4+ Kb5 Rb6+ Ka5 Rbc6 Ba8 Rb3 Bb7 Ra3 Kb5 Ra6 Bc6 Kb3 Bg1 Ra2 b1Q+ Nab2 Qc1 Na4 Nd4+ Kc3 Qd2+ Kb2 Nf3+ Kb1 Bd4 Nf2 Qe3 Nd1 Qc1+
3NR3/N2Rq1br/R6p/2n1R3/2pnn1rK/1nBr1N1N/6Pr/1kq2B2 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 h4 gxh4 b4 a5 b6 Be7 b5 Ba3 Qb3 Bf8 Qb4 Ba6 bxa6 axb4 Kf2 Ke7 e4 Ke6 d4 c5 a7 f5 d5+ Ke5 b7 Kd4 e5 b3 d6 b2 d7 h3 e6 h6 e7 c3 e8N c4 Ra3 f3 Kg3 c2 Bg5 c1N Bf4 f2 Ra2 h2 Nc3 b1R Rb2 Rh7 Nh3 Bg7 Nf6 Ne2+ Kh4 Kd3 Na2 Rd1 Bd2 f4 Ba5 f3 Rb3+ Kc2 Nc3 Qe7 d8N Na6 b8R Nc5 Nc6 Nd4 R3b5 Rd3 Rg1 h1R Re8 Rh2 Nd8 Rb8 a8R Rc8 Be2 f1N Ra6 Nd2 Rd1 f2 Bf1 N2b3 Bb4 Ra8 Rba5 Kb2 Nb5 Rc8 Rd2+ Kb1 Bc3 Rb8 Na7 Rb5 Ra3 Ra5 Re2 Rb5 Re5 Ra5 Rd6 Rb5 Rd7 Ra5 Be2 f1Q Ra4 Rb5 Ra6 Qc1 Bf1 Ra5 Rg5 Rb5 Ng4 Nf6 Ne5 Nfe4 Nf3 Rb6 Kh5 Rg6 Re5 Rg5+ Kh4 Rg4+
R2nnq1B/2RrP1p1/n1rN1q2/1n6/3R4/K2NNpBk/1Rqr3r/2N5 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 a5 b4 axb4 e5 d3 Qf3 e6 Qd5 exd5 e6 d4 g3 h5 Bh3 f5 Bg4 b6 Kd1 Bb7 Kd2 Bd6 Ke1 Be5 fxe5 f4 Bd1 Bc6 g4 Be4 Bf3 Bf5 gxf5 Kf8 Be2 Ke8 Bg4 hxg4 Kd2 Ke7 h4 d5 a4 f3 c4 b5 a5 b3 a6 b4 h5 b2 h6 b3 c5 g3 c6 g2 c7 Qf8 c8R Nf6 a7 Ne8 h7 Na6 Rc4 Rc8 a8R Rc6 Nc3 b1N+ Kd1 d2 Rh4 b2 Kc2 d1R Kb3 d3 Rh2 d2 Raa4 d4 Nge2 g1N Rc5 d3 Rd4 Qf6 Rg2 Na3 Nd5+ Kf8 e7+ Kf7 Rc3 Nh3 Ne3 b1Q+ Bb2 Qa1 Nc1 Ng5 Ka4 Qd6 f6 Kg6 f7 Kh5 f8N Ne6 Ng6 Nd8 Nf4+ Kh4 e6 Nb5+ Ba3 Qc5 Kb3 Qf5 Bd6 Qf8 Bb8 Rf1 Bc7 d1R Rb2 d2 Nfd3+ Kh3 Bg3 Rf2 Rcc4 Rh1 Rc3 d1Q+ Rcc2 Rg8 h8B Qe2 Rc5 Rfh2 Rcc2 Rd1 Rc3 Rd2 Rcc4 Nec7 e8N Qf2 Nd6 Ne8 e7 Qg2 Be1 Qg6 Rc5 Qb1 Bg3 Qc2+ Ka2 Qgf6 Rcc4 Rc7 Rc6 Rd7 Rc7 Nb7 Ne5 Q8f7+ Ndc4 Ned6 Rc6 Rc8 Ned3 Ne8 Rc5 Qf8 Nd6 Nd8 Rc6 Rb8 Rc8 Rb6 Rc7 Qc6 Kb3 Qc5 Ka2 Rc6 Kb3 Qc2+ Ka2 Nc3+ Ka3 Nb5+
1N1R2b1/2Kp2R1/b1Pn2BB/4R3/qB1rrq1p/1N2q1B1/2n1p3/3k2qR w - - 0 1 legal: proof: b4 b5 a4 g5 d4 c5 h4 gxh4 a5 cxd4 a6 e6 e4 Bc5 bxc5 f5 Qd2 fxe4 Qa5 b4 Qb6 axb6 cxb6 Qc7 b7 Qa5 a7 Qd8 Kd2 Ke7 c4 Kd6 f4 Kc5 g4 h5 f5 e3+ Kd3 h3 Ke4 h4 Ke5 b3 g5 Kb4 Kd6 d3 c5 h2 f6 e5 c6 d2 f7 d1Q+ Nd2 Kc3 f8B Kc2 g6 b2 g7 b1B Be7 e4 Nf3 e2 Bb2 e1Q Bc4 e3 Bb5 Na6 b8B Ba2 Ng5 Nf6 g8R Qf8 Ne6 Nb4 Nc5 Ne4+ Kc7 Nd6 Bc1 Ba6 Ndb3 Qf4 Rg7 Re8 Rb1 Qdd4 Bd3+ Kd1 Bg6 Nc2 Bf8 Re4 Ra1 Bb1 Ra5 Ba2 Bd2 e2 Bb4 Qde3 Rb5 Q1g1 Ra5 Bb5 Na6 Bc4 Re5 Bd3 Nbc5 Bg8 Nb3 Rd4 Rf7 Re4 Bh6 Bb5 Rg7 Rd4 Kb6 Bbc4 Bc7 Re8 Nb8 Ba6 a8R Re6 Ra5 Ree4 Rb5 Nf5 Be5 Nd6 Kc7 Qff2 Bg3 Qf7 Bge1 Qff4 Re5 Qgg4 Rf1 h1Q Bg3+ Ne1 Rg1 Qh2 Rh1 Qhg1 Re8 Nc2 Rd8 Bb5 Ra5 Ba6 Rg5 Qgf5 Rh5 Qb5 Re5 Qa4
B1Rq4/1bN1b2b/p2bP2b/3N1p2/B2K2b1/N3rqpB/r3kNBR/8 w - - 0 1 legal: proof: b4 h5 d4 b5 a4 c6 g4 hxg4 c4 bxa4 b5 c5 Qd2 Rh6 Qb4 cxb4 c5 Rh8 f4 e5 e4 Qa5 c6 Rh5 Be3 Na6 Bf2 Nc5 dxc5 Qc7 Bd4 exd4 e5 Rh8 e6 Qd8 Kf2 Ne7 Ke2 Ng6 Ke1 Ne5 fxe5 Qb6 Ra2 Qa5 Ra1 Qd8 Kf2 Ke7 h4 d5 h5 g5 c7 g3+ Ke2 b3 Kd3 a3 h6 a2 c6 g4 b6 g2 b7 b2 b8N g3 h7 Bb7 c8B Bh6 c7 Re8 Nd2 b1B+ Ke2 d3+ Kf3 f6 Nh3 g1B h8N Bc5 Nc4 d2 Rh2 Bh7 Na3 Bd6 Rc1 a1B Bg2 d4+ Ke2 Bc3 Na6 Bcb4 Nf2 Bbc5 Bd7 Bb4 Bdc6 d3+ Kf3 Bbc5 c8B f5 Bh3 Bb4 Nc7 Bbc5 Be4 Bb4 Bd7 Bbc5 Ba4 d1Q+ Kg2 Qb3 Kf3 d2+ Ke2 Qd1+ Kd3 Qf3+ Kc4 Bb4 Kd4 d1B Bec6 Qf4+ Be4 Bg4 Rc5 Qf3 Bd5 Kf8 Ng6+ Kg7 Nf4 Re7 Be4 Re8 Nfd5 Kg6 e7 Kg5 Nf6 Kf4 Rc1 Rg8 e8B Rg7 Beb5 Re7 Bbf1 Re6 Bd5 Be7 Bfg2 Bbd6 Kc4 Ke3 Kc3 Ke2+ Kd4 a6 Bdc6 Rb8 Nfd5 Bc8 Rc4 Rb2 Ba8 Bb7 Rc5 Ra2 Rc1 Bb4 Rc4 Rc6 e6 Bbd6 Ncb5 Rb6 Rc8 Rc6 Nbc7 Rc3 Bh1 Rb3 B1g2 Re3
2n2rbN/1B1qb1R1/4R2B/3N2q1/k1pB2bB/2r1N1r1/1q1Nb1nP/4K1b1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 e5 f4 exf4 b5 d5 Qb3 dxc4 Qb4 axb4 a5 b6 axb6 Qd7 Nc3 Qe7 Nb1 Qd8 d4 Kd7 e4 g5 e5 f5 d5 c5 b7 g3 b6 f3 d6 Kc6 e6 Kb5 d7 b3 e7 f4 e8N g2 Ra2 b2 Be3 f2+ Ke2 c3 Bd2 g4 Be3 g3 Na3+ Ka4 Kd1 b1Q+ Ke2 c2 Bd2 c1Q Be3 Nf6 Bd2 Nd5 Ra1 Rh3 Nf6 Qbb2 Nf3 g1R Bg2 Nc6 b8B Na7 b7 Be7 Be5 Qe8 d8B Bg4 b8N Qd7 Bd4 Nc8 Nc6 c4 Ne5 Rb8 Bf1 g2 Ng6 Be6 Nh8 Bg8 Rb1 Ra8 Nc2 Rb8 Ng5 Rc3 Nge4 Ra8 Ne3 Rb8 Kf3 Ra8 Be2 f1B Kf2 f3 Bd3 Nf4 Nfd5 Be2 Ra1+ Kb3 Ra6 Rb8 Re6 Ka4 Be1 Bd1+ Nd2 Ra8 Be4 Rb8 Kg3 f2 Bc7 f1B Kf2 Bfe2 Bf3 Ng6 Bf4 Ra8 Bh6 Nf4 Be4 Bg4 Nc7 Bde2 Bb7 Qcc2 Ncd5 Qg6 Kg3 Qg5 Bf2 Rgc1 Rg1 Rd3 Be1 Rcc3 Kf2 Bd1 Rh1 g1B+ Kf1 Rb8 Bh4 Bde2+ Ke1 Ra8 Ng2 Rg3 Nge3 Rb8 Nf5 Be3 Rg1 Ra8 Rg2 Bg1 Nfe3 Ra5 Bdg7 Rh3 Ra6 Bh5 Ng6 Qgf5 Nf6 Qfb5 Rg5 Rg3 Re6 Bhg4 Nh8 Qf5 Rg6 Re5 Nfd5 Qg5 Bf6 Rf5 Bd4 Rf8 Rg7 Ng2+
R2qB2b/r1R1nb1P/2b2KNn/NRB5/8/R4pn1/nNn4N/knbr4 w - - 0 1 illegal: No possible last move
3Rr2N/N2bn3/1q6/Rp2BPn1/R3N1r1/3B2r1/Kr2rn1r/1nkn1NR1 w - - 0 1 illegal: No possible last move, all moves rejected
rn1nB3/1q2RBp1/3q1RNn/3b2K1/1p4Bq/R5r1/PBn1R3/1r2b1Nk w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 Qd3 h6 Qg3 exf4 gxf5 h5 Qg4 hxg4 Kf2 Kf7 c4 Kf6 h4 Ke5 e4 b5 h5 d5 h6 f3 Kg3 b3 h7 b2 c5 f2 c6 d3 c7 d4 f6 d2 Kh4 Kf4 e5 g3 e6 d3 e7 g2 e8B Bb4 Bg6 Be6 c8B Nh6 Be2 f1N Beh5 Ne3 Na3 b1R Bd1 Bd5 Bh3 Nc2 Nc4 Ra3 Kh5 Kg3 Bdg4 d1Q f7 d2 f8R Qf3 Bb2 d1Q Ne5 Be1 Rf6 b4 Bf7 Qd6 Rh2 Qd4 Kg5 Ra8 Bd7 Qh4+ Kg6 Rc8 h8R Rc3 Bhg4 Re3 Bde8 Rd3 Nh3 g1N Re2 Qg2 Rf8 Nf3 Ng1 Kh2 Rg8 Nfd4 Rh8 Qg3 Kg5 Ndc6 Ng6 Nd8 Re7 Kh1 Rg8 Nf5 Rh8+ Q3h2 Rh3 Nh6 Rhe3 Rb3 Re2 Qe4 Ra7 Qee7 Ra3 Qb7 Re7 Rd1 Rc1 Rdd3 Rd1 Rg3 Rd2 Qh3 Rde2 Qh2 Ba1 Rb1 Bb2 Qh4+
2nB2Kn/p1Rb2n1/R3bRn1/1b4B1/1k2NqRp/1p4r1/1n2P3/1BNBb3 w - - 0 1 legal: proof: b4 e5 f4 exf4 h4 c5 a4 b5 h5 bxa4 d3 g6 b5 gxh5 Ba3 h4 Bb2 Nc6 Bc1 Nb8 c4 Ke7 d4 Qb6 d5 Qd8 d6+ Ke8 Qd2 Na6 Qb4 cxb4 c5 Rb8 Bd2 Rb7 Bc1 Rc7 dxc7 Bg7 Nc3 Bh6 Nb1 Bf8 Kd2 Ke7 Kd3 f5 Kd4 d5 Ke5 h5 g4 b3 c6 f3 b6 h3 g5 d4 b7 a3 b8B f4 g6 f2 g7 d3 Bd2 h2 Nc3 h4 Nb1 f3 Bb4+ Qd6+ Ke4 a2 Bd2 Qf4+ Kd5 Nh6 g8R Nb4+ Kc5 Bd7 c8R Nd5 c7 Nb6 Rg6 Rg8 Rg7+ Nf7 Be3 d2 Rg5 d1N Bc1 Nb2 Rg4 Nh8 Bh3 f1N Nc3 f2 Nf3 Ng3 Ne4 f1B Ne5 Nh5 Nd3 Ng7 Rhg1 Bg2 Rf1 h1B Bd2 Bf3 Nc1 Ke6+ Kd4 Bb4 Be3 Be1 Bd2 Qg3 Bg5 Bfg2 Rff8 Qf4 Kc5 Ke5 Rf6 Bf1 Bg2 Be6 Kc6 Kd4 Bf3 Kc4 Bg2 Qe3 Kd6 Qf4+ Ke7 Kb4 Bf3 Bh3 Bg2 Ne8 Bf3 Rg6 Kf8 Ng7 Bg2 Bd7 Kg8 Bb5 Nc5 Bd7 Be4 B1g2 Bd3 Bgc6 Bc2 Bb5 Bd1 Be6+ Rf7 Bed7 Ne4 Be6 Rf8 Nc8 Bd8 Bed7 Rf6 Be6+ R8f7 Bed7 Rg1 Bhe6 Rg4 Nd6 c8B Rg5 Ba6 Nc8 Be5 Rg6 Bd4 Rg5 Be3 Rg6 Rb1 a1N Bb7 Nc2 Ra1 Rg5 Ra6 Nd4 Bd5 Ndf5 Bc4 Bg3 Bd3 Be1 Bb1 Nfe7+ Kf8 Neg6+ Kg8 Rc5 Bd2+ Rc3 Be3 Qb8 Bf4 Rg3 Bg5 Bf5 Re7 Qf4 Ref7 Be8 Rb7 Bed7 Rc7 Bfe6+
3nB1NK/Bp3b1q/1N1Rp2B/Rpb1p3/1n6/nB1q4/1RPbr1kr/5R2 w - - 0 1 legal: proof: d4 h5 g4 c5 f4 cxd4 b4 g5 e4 a6 e5 f6 b5 axb5 fxg5 fxe5 g6 Na6 g5 Nb8 Qg4 hxg4 Kf2 g3+ Kf3 d3 Kg4 d2 Kf5 d1Q a4 g2 h4 Qd5 h5 Qd4 h6 Qe3 g7 Kf7 h7 Nf6 g8R Nc6 a5 Rb8 a6 Bh6 a7 Qc7 a8R Nd5 Rd8 Ndb4 Nh3 g1B g6+ Kg7 Bg2 d5+ Rd7 d4 Nc3 d3 Na4 d2 Rb1 d1N Rb2 Re8 Ng5 Rf8+ Nf7 Nc3 Ra5 Nb1 Bh3 Qb3 Be3 Na3 Ba7 Bc5 Rf1 Bd2 Nb6 Qd3+ Ke6 Ra8 Nh6 Rf2 Bf5 Re2 h8B+ Kf8 Bf6 Rb8 Bg5 Kg7 Be4 Ra8 Bf4 Rb8 Kf5 Ra8 Kg5 Rb8 Rd6 Be6 Bd5 Rh8 Bb3 Nd8 Kh5 Kf6 g7 Qd7 g8B Qc7 Bf7 Rh7 Rd7 Rh8 Be8 Bg8 Ra6 e6 Rd6 Qg7 Ra5 Bf7+ Kh4 Kg6 Kg4 Rh7 Ng8 Rhh2 Bh6 Qh7 Rd7 Rhf2 Kh4 Kf5 Rd6 Ke4 Kg4 Re3 Kg5 Kf3 Kf6 Re1 Na4 Re2 Nb6 Qhe4 Kg7 Kg3 Ne7 Rh2 Kh8 Kg2 Ng8 Qh7#
1q2R2n/rb2N1N1/bRB2p1B/1nbr1Pq1/2K2k2/nn1n4/N3n1Bq/2N4B w - - 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 e5 Qd3 e4 Bf4 exd3 Bc1 gxh6 Bf4 h5 Bc1 h4 Kd2 Ke7 g4 Kd6 e4 Ke5 c4 d5 a4 b5 a5 h5 g5 h3 a6 h2 f3 b3 c5 b2 g6 b4 a7 h4 c6 b3 c7 h3 g7 Ne7 g8N Kf4 e5 Rh5 e6 Ba6 c8B Ng6 e7 Nh8 e8N Bc5 Na3 b1Q Bf5 b2 Bg4 Nc6 Ra2 Qg5 Bf5 f6 Ra1 Na5 Bg6 Nb3+ Kd1+ d2 Ng7 Re8 a8B Re7 Bb5 Ra7 Ke2 d3+ Kf1 d4 Bd5 Qh6 Nc2 Qg5 Ne3 d1N Bbc6 Nc3 Bge4 Nb5 Nc2+ d2 Ne7 d3 Ra4 Qh4 Rb4 Qg5 Ne3 d1N Nc2+ d2 Ke2 Ndc3+ Kd3 Ne2 Kc4 Kg3 f4 d1N Bd2 Nf2 Bg2 Nd3 Bde4 Qa1 Be3 b1N Bc1 Qb2 f5 Rh7 Bef3 Qe5 Be3 Qb8 Bd2 Rd7 Bfe4 Rd5 Bef3 Qg6 Bh6 Qg5 Be4 Kf4 Bef3 N3d4 Rb2 Nb3 Nb4 Rd7 Bfe4 Rd5 Na2 N1c3 Nf3 Nb1 Re1 h1Q Nd4 h2 Bef3 Qg1 Be4 h1B Bef3 Na1 Nb3 Qh2 Nbc1 Nb3 Bf1 Bg2 Be4 Bf3 Bg2 Bh5 Bh1 Bf7 Bhg2 Be6 Bh1 Bec8 Beg2 Bcb7 Nc8 Ng3 Re8 Ne2 Ne7 Ba8 Rd2 Na1 Rb2 Nc7+ Rb5 Nb3 Ng8 Bc8 Rb7 Nb5 Rb6 Ba6 Ne6+ Ke3 Bf3 Ra7 Ne7 B8b7 Ng7 Kf4 Bfg2 N1a3+
Rbr1rN1B/N3bbnK/B7/4qqrn/1bNR4/1p5r/RP6/N1Rq1k1b w - - 0 1 illegal: No proof kernel
2k4n/1r1bRN1r/1nN4n/6pN/1bK2B1n/1rRrrRnB/1Rn2qP1/1N6 w - - 0 1 illegal: No proof kernel
2Bq2KB/1RRRb2R/p4B2/2N5/1Br1N3/1qbq2n1/Pbk2p1r/r2bn1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 e6 dxe6 g5 e5 Qe2 e4 Qg4 hxg4 Kf2 Kd7 b4 Kd6 d4 Kd5 h4 e5 b5 f5 g6 c5 g7 c3 h5 c2 b6 f3 Ke3 a6 b7 f4+ Kd2 f2 Kc3 c4 h6 f3 h7 e3 Rh3 Ke4 d5 e2 d6 e1R d7 g3 Ne2 g2 Bh6 c1B Be3 g1N Bh6 Nc6 b8R Nge7 g8R Nb4 Rgg3 Nd3 Bg7 Nf5 Nd4 Bb2+ Kc2 c3 Kb3 c2 Kc4 c1Q+ Nc3+ Ke3 Kd5 Kd2 Ke6 e4 Kf7 e3 Rb4 e2 Bf6 Qc2 Rg7 Ng3 Rb7 Qb3+ Ne6 Kc2 Rd1 Rb8 Bg2 f1Q Ne4 f2 Bf3 Ra8 Bg4 Rb8 Bc3 Ra8 Rc7 Bb7 Rh4 Rc8 Bb4+ Bc6 Rb7 Ba4 Rh2 Rc4 N6c5 Qh3 Rc7 Rf1 Rb1 e1B Be6 Qg5 d8B Bec3 Bc8 Ne1 Bf6 Qd2 Rd1 Qd8 Rdd7 Qf5 Rh5 Qf3 Rb7 Qd3 Rdc7 Nef3 Rd5 Ra1 Rdd7 Ne1 Rg4 Rg8 h8B Rg5 Rh4 Rh5 Rh1 Rh2 Kg8 Bc6 Nd2 Bf3 Nde4 Bh5 Nd2 Bd1 Nde4 Rg2 Rh3 Rh2 Rhh7 Be7+
2RN3b/NN1rr3/K2R2p1/q5P1/2B2kBB/r2r1pr1/2rq2Bn/1n1N1bq1 w - - 0 1 illegal: No possible last move, all moves rejected
2K1n2k/1N6/NBb1n1B1/2r1R2p/1rpBnNbb/5r2/6rP/n1rRBNq1 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Qe2 d5 Qf2 dxc4 Qf4 gxf4 Kf2 Kf7 a4 Kg7 d4 b5 g4 e5 a5 c5 a6 h5 a7 b3 d5 c3 d6 e3+ Kf3 e2 Ke4 e1N Kd5 e4 d7 b2 Ke6 b4 g5 c4 g6 b3 Be3 c2 Ra4 c1R Ra5 f3 Bb6 f2 Ra1 e3 Na3 b1N Bd3 f1R Nh3 e2 Nf4 b2 Nb5 Nd2 Bd4+ Nf6 Nd6 b1B Ra5 Ne4 Nb7 Nc2 Re5 Rf3 Rd1 Ne8 f6+ Kg8 g7 Na1 Bc2 e1R f7+ Kh7 g8N Qg5 Bd3 Na6 Nh6 Qg1 Ng4 Rg8 Ne3 Rb8 a8N Rg2 Nc7 Be7 f8B Kh8 Nf1 Bh4 Bb4 Ree3 Be1 Nac5+ Kf7 Ne6 d8B Bd7 Na6 Bc6 B8b6 Rc8 Bc2 Rb3 Bd3 Rb4 Bc2 N4f6 Bg6 Bf5 Ke7 Bg4 Bdc5 Bd5 Bd4 Ne4+ Kd7 Rc6 Bh7 Rc5 Bg6 Bc6+ Kc8 Kg7 Rd3 Kg8 Rd1 Kh8
Rn2bb2/8/2rR1pR1/NBB2p2/1rBr4/3RKPb1/qnB1n2p/1n1n2kN w - - 0 1 legal: proof: c4 a5 b4 axb4 h4 d5 h5 dxc4 h6 e6 Qc2 gxh6 Qe4 h5 Qd5 h4 Qf5 exf5 e4 Kd7 Ke2 Kc6 d4 b5 g4 h5 a4 h3 a5 b3 e5 Kd5 f3 c5 a6 h2 g5 b2 g6 c3 e6 f6 e7 c4 e8B c2 a7 h4 g7 c3 Na3 b1N Bg5 c1N+ Kf2 h3 Nc2 b4 Ke3 b3 Beb5 b2 Ne1 c2 Bfd3 Rh4 Ra2 Ne2 Ra5 c1B+ Kf2 Nh6 g8B+ Nf7 Bc2 Bf4 Ra6 Bd7 Nd3 Qa5 Ne5 Be8 Nc4 Qa2 Na5 Bg3+ Ke3 Rg4 Re6 Ne5 Bf4 Nd3 Bd6 Nbc3 Bc5 b1N Bf7 Nb2 Bg8 Nc1 Ne2 Rh4 Rd1 h1R Rd3 h2 Bf7 Rd1 Bg8 Bc7 Ng3 N1e2 Nh1 Bg3 Bf7 Nc6 Bg8 Rc8 a8R Nb8 Re4+ Bf7 Rg4 Rc6 Bh7 Be8 Rg6 Ke6 d5+ Ke5 d6 Rb4 d7 Rd2 Rd6 Rdd4 d8R Na3 Bcd3 Ncd1+ Kd2 Kf4 Bg8 Nec3 Bgc4 Nab1+ Kc1 Ke3 Bc2 Bh4 Ng3 Kf2 Nh1+ Ke1 R8d7 Bg3 Rd8 Re4 Rd3 Kf1 R8d5 Rd4 Rd6 Na3 Kd2 Kg1 Ba6 Ne2 Bab5 Ndc3 Ke3 Nab1 Rg8 Rc7 Rg7 Rc6 Rg6 Ncd1+
4N2n/Bb1q2np/2rp1r2/1nB1bN1N/3P2k1/KbBn4/3bR1p1/R1nN1B2 w - - 0 1 illegal: No proof kernel
1RNb1k1N/1rpp1p2/1r1q3N/1B2r3/b2P3B/B1b3nb/n1RK3N/r1B4b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 b5 f5 bxc4 b5 e6 Qc2 exf5 Qc3 f4 Qb4 axb4 d4 g5 e4 f3 a4 f2+ Kd2 g3 h4 b3 a5 g4 e5 b2 a6 g2 a7 g3 h5 Rh6 b6 Bb7 e6 Qe7 Ra2 Nf6 Na3 b1B Rc2 Na6 Nf3 g1R Nh2 Rb8 a8N g2 Be2 Bc6 b7 f1B Nb6 Ba4 Nc8 Qd6 Bd3 Rg6 h6 Nh5 h7 Be7 h8B Kf8 Bf6 Ng3 Bh4 Nb4 Be2 Bd8 e7+ Kg8 e8N Kf8 Nf6 Na2 Ng8 c3+ Ke1 Re6 Nc4 Re4 Nh6 Re5 Rb2 c2 Kd2 Ra8 b8B Ra7 Rb6 Rb7 Rc6 Rb6 Ba7 Rb7 Bc5 Rb6 B5a3 Rb7 Bcb2 c1B+ Ke1 Be4 Bd3 Reb5 Ne5 R5b6 Rc2 Bd5 Bb5 Bf3 Bc3 Bb2 Bd2 Bc6 Bc1 Bd5 N2g4 Be4 Rh3 Rh1 Kd1 g1R Kd2 Bf3 Rh2 Bh3 Re2 Re1 Nh2 Be4 Re3 Rhg1 Rb3 Bh1 Rb4 Ke8 Ng6 Re5 Nh8 Kf8 Rbc4 Bb3 Ra4 Rf1 Ra8 Ba4 Rb8 Rg1 Kd3 Rge1 Be3 Rb1 Bc1 Ra1 Kd2 Bc3+
R5qR/4BrBb/1bn2B1r/3kN3/1n1r1R1b/p1q1p1b1/P1p1RNp1/6KB w - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 f5 Nc3 f4 Qf3 hxg6 Qd3 g5 Qg3 fxg3 Nb1 g4 b4 Kf7 h4 Ke6 d4 a5 f4 g5 b5 c5 b6 g2 Kf2 e3+ Kg3 e2 Kh2 e1B h5 a4 f5+ Kd5 h6 e5 h7 c3 f6 c2 b7 a3 f7 e4 Ba6 c4 Be3 c1Q Bd2 c3 Be3 Be7 f8R Nf6 Bd2 Ra7 Nh3 g1R Nf2 Nc6 b8R Bf5 Bb7 c2 Ra8 Qb2 Ba5 Qc3 Nd2 Rf1 Nf3 g3+ Kg2 g4 Bb4 Ra4 Ne5 Qc8 Rf7 Qg8 Rc1 Bd8 Be7 e3 Rd1 Bb6 Rd2 Bd3 Re2 Bg6 Nfd3 Rf3 Kg1 g2 Rh3 Bh4 Nf2 Rf5 Rff8 Rc4 Rf3 Bg3 Rf4 Bh4 Kh2 g1B+ Kh1 Bh2 Rfc8 B2g3 Kg1 Nh5 Re8 Rf7 Bf6 Kd6 d5 Rd4 Rf8 Kc5 d6 Kd5 d7 Bf5 d8B Bg6 Rf5 Nf4 Bde7 Nd3 Rf4 Nb4 Bc8 Bd8 Bf5 Bb6 Be4+ Ke6 Bg2 Be4 Bf3 Kd5 Bh1 Qg6 Nc4 Bh2+ Kf1 g3 Ne5 Bg1 Nfd3 Bf2 Rfb8 Be1 Kg1 g2 Re8 Beg3 Nf2 Rhf8 h8B Qg4 Bhg7 Rh8 Bgf8 Rh6 Reb8 Qc8 B8g7 Qh8 Rc8 Qh7 Rh8 Qg8 Nf3 Bg6 Ne5 Bh7
bN3N2/Rp4Qr/1r1PbB2/N4Nr1/4k1N1/5rQp/q3q2K/2n1n2Q w - - 0 1 illegal: Other
2B1nn2/1R1QRbK1/2RrP1n1/1r3rbq/2R1qR2/7Q/3r1n1r/nk1N3Q w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 g5 Ra6 f3 Bf4 f2+ Kd2 Bg7 Nc3 Bf8 Ra1 gxf4 Ne4 h6 g5 h5 Nf6+ Ke7 Ng4 hxg4 Qb1 Ke8 Qc1 Na6 Qd1 Nb8 Kd3 Ke7 Ke4 Ke6 h4 d5+ Kd3 Ke5 b4 f5 e4 a5 c4 g3 g6 g2 b6 a4 h5 a3 b5 f3 h6 a2 g7 f4 h7 Be7 c5 Nf6 g8Q Ne8 b7 Bg5 b6 Nd7 b8R Ra6 b7 Qa5 c6 Nf8 c7 Rd6 Qa4 Be6 c8Q Bf7 Ne2 g1N Qac6 Nh3 Rb1 a1N Bg2 f1Q Qd8 f2 Qcc8 f3 Rc1 Qfe1 Nc3 f1R Nd1 f2 Qdd7 Rg1 Ra8 f1R b8R Rf5 Ra6 Kf4 e5 Rf1 Rc3 Qe4+ Kd2 d3 Rc6 d4 Rb7 Rf3 Rf1 Qb5 e6 Qa5 Qa8 Rb5 Kc1 Rf2 R3c4 Rf3 Qg7 Rf2 Qh6 Ke5+ Ne3 Nf4 Qh3 N4g6 Kd1 Rf5 Rf4 d2 Ke2 d1R Bh1 Qb1 Kf3 d3 Kg4 Rd2 Kh5 Qe1 Nd1 Qe4 Rc1 Kd4 Bf3 Rg8 h8R Rh2 Be2 d2 Rh7 Rg7 Bf3 Kd3 R1c4 Rg8 Nc3 Kc2 Nd1+ Kb1 Bg2 Bh4+ Kh6 Rh8 Qa7 Rg8 Qg1 Be7 Qh1 Rg7 Nb2+ d1N Bf1 Nf2 Nd1 Nh4 Bg2 Rg3 Bf1 Rgd3 Be2 Rd2 Bf3 Bg6 Bg2 Bf6 Re7 Bf7 Bf3 Nc7 Be2 Bg5+ Kg7 Nhg6 Ra4 Rbb2 Ba6 Rbb5 Rd4 Qa3 Rdc4 Qaf3 Rb8 Qfe2 Bc8 Qh5 Rb7 Ne8+
2q3r1/K1QRQRR1/r5q1/2qnp2r/b7/r1Q1rRP1/2r4b/nkN2R1B w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 g5 e4 b5 axb5 f5 Bd3 fxe4 f5 h6 Bf4 gxf4 Bf1 h5 Nc3 h4 g3 h3 Nd5 Ba6 Ne3 Bc8 Ng2 hxg2 Kd2 Kf7 b4 Kf6 c4 Ke5 h4 a5 f6 d5 b6 d3 Kc3 f3 b5 a4 Kb4 Kd4 b7 e5+ c5 d2 f7 f2 h5 e3 h6 e2 b6 Kd3 Kb5 a3 c6 a2 c7 d4 h7 Ne7 Qc1 d1Q Qe3+ Kc2 Rh3 e1R Rh5 d3 Rh6 d2 Qa3 Bd7+ Kc5 Qh5 c8Q d1R Bb5 f1R Qc6 Rd2 Qe6 Nbc6 b8Q Qg6 b7 Nd4 Bc6 Rf6 Rh5 Rde2 Rf5 Nb3+ Kb5 Bh6 f8R Be3 Rb1 Rf2 Ne2 g1Q Rf4 a1R Rf7 Ba7 Ka6 Ra2 Qed6 Na1 Bh1 Ba4 Rf3 Rh2 Qe3 Ra3 Rd1 Qf2 Qc7+ Kb2 b8R+ Ka2 Rb7 Nd5 Rdb1 Qd7 Qcb6 Rag8 Qc3 Qc8 Qbc5 Bb6 Qe7 Qd4 Rc1 Qb4 Qc6 Bg1 Rb1 Rf2 Ka7 Bh2 Rd7 Qc4 Qcc5 Rb6 Qc7 Qc5 Rd1 Rg2 Nc1+ Kb1 Qc4 Ree3 Qc3 Rc2 Re1 Rg7 Ref1 Re8 h8R Rh7 Rg8 Rh5 Rgg7 Rd8 Bg2 Rg8 Bh1 Ra6#
k7/P6b/2RbB3/Q1b1rb2/1rpbnnR1/RR3Q2/1Nqb2Qq/5KqR w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Bd7 Bb2 Bc8 Na3 Kd7 Be5 Ke8 Bf4 h6 Nc2 gxf4 g5 h5 Ne3 Nc6 Ng4 hxg4 Qc1 Nb8 Qc2 Kf7 Qd1 Ke8 d4 Kd7 a4 b5 h4 e5 h5 c5 h6 Kc7 d6+ Kb7 f6 c4 g6 e3 d7 b3 f7 b2 d5 b1B g7 e2 h7 b4 a5 g3 d6 f3 Rh6 e4 Rh1 g2 Qa4 f2+ Kd2 e1B+ Ke2 e3 Nh3 g1B Qb3 Qh4 d8R Bcf5 d7 Nf6 g8R Ne4 Qd3 b3 Rg2 b2 Qd2 Bd6 f8R Nc6 Rde8 Ne5 d8Q Rb8 a6+ Ka8 a7 Ng6 Qd1 Bd2 Nf4 Qh2 Ra3 B2b4 Re6 Bbc5 Rff6 Re8 Qa5 Rb4 h8Q Bd4 Nd3 Nf4+ Kf3 e2 Qg8 e1B Rg4 Bc2 Bh3 b1Q Nb2 Bd2 Re5 Bd3 Rb5 Qc2 Qe2 f1Q+ Qf2 B6e5 Rc6 Qfc1 Qd5 Bc5 Qg2 Bed6 Qf7 Re5 Qh5 Ra4 Rbb3 Bgd4 Qf7 Rb4 Qd5 Nf6 Qe4 Bh7 Qe3 Bdf5 Kf2 Ng6 Ke2 Ne4 Qg3 Qcg1 Qf3 Qe3+ Kf1 Nf4 Rh4 Bfg6 Be6 Bf5 Rg4 Qeg1+
Nk5B/q4bB1/1n2qr2/1BBQbB1p/8/1PQ2Q1n/Kbnnq3/1rbR4 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 g6 h6 Qa5+ Bd2 Qb6 Bc1 Qd8 g4 Ba3 g5 Qf6 Rh5 Qd8 Nc3 Be7 Ne4 Bf8 Ng3 Bg7 Rh1 Bf8 Nh5 Qf6 Ra6 gxh5 g6 Qg5 g7 Qd8 Rg6 hxg6 Kd2 f5 c4 d5 Kc2 Kd7 Kb1 Kc7 e4 a5 b3 d3 h7 d4 e5 f3 c5 f4 e6 f2 e7 a4 e8B g5 c6 d2 Bd3 f1N Be4 f3 Rh2 f2 Rh3 g4 Qe2 d1N Bd2 d3 Qe3 g3 Qd4 a3 Bf4+ Bd6 Bf7 d2 Bf3 g2 Be4 a2+ Ka1 Nfe3 Bd3 f1Q Bfc4 Nf6 g8Q Nf2+ Bb1 d1Q Qc3 Qd5 Ne2 g1B Rh1 Nbd7 b6+ Kb8 b7 Qe7 Bb5 Nb6 Nd4 N6e4 Bh6 Qe2 Bg7 Nd2 Bf5 Be5 Ne6 Nh3 Nc7 Qde6 Qf8 Ra5 Na8 Nc2+ Kb2 Bgh2 Rd1 Bhf4 Qd4 Rg8 h8B Ra6 Qf6 Bd7 Qc3 Be8 c7+ Ka7 c8Q Bf7 Qc6 Kb8 Qd5 a1B+ Kc1 Bg5 Qcf3 Bad4 Qc3 Ra1+ Kb2 Rb1+ Ka2 Rc8 Qcf3 Bb2 Qc3 Rc6 Qcf3 Ka7 b8B+ Kb7 Bc7 Qc5 Bd8 Kb8 Be7 Bh6 Bef8 Qce7 Qc3 Qa7+ Ba3 Nf1 Qcf3 Bhc1 Qc3 Nd2 Qcf3 Bd6 Q6c3 Be5 Qd8+ Qc8 Qdd4 Rf6 Qdd5 Qe7 Bb4 Qce6 Bc5 Qa7+
b2q3Q/R4b2/bQ3rqR/1N1pk1P1/K2RB3/QR2r1r1/r1Rn2qn/6b1 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 g5 Ra6 f3 Bf4 f2+ Kd2 Bg7 Nc3 Bf8 Ra1 gxf4 Ne4 h6 g5 h5 Nf6+ Ke7 Ng4 hxg4 Qb1 Ke8 Qc1 Na6 Qd1 Nb8 e4 Ke7 b4 Ke6 h4 f5 c4 a5 Kc2 d5 Kb3 g3 b6 f3 h5 a4+ Ka3 d3 b7 d2 h6 g2 h7 f4 e5 Na6 b8R Bb7 c5 Nf6 b5 Ng4 b6 Nh2 Qe2 d1B Nh3 g1R Rb1 Rg3 Bg2 f1Q Ng1 f2+ Qe3 Bh5 Ra1 f3 Ne2 Bf7 Nc3 Be7 Qc1 Re8 h8Q Qe2 Qe3 f1B Nb5 f2 Be4 Ra7 Rd1 Ba8 b7 Bf6 c6 Nc5 c7 Nb3 c8R Nd2 Kb4 a3 Rc2 a2 Qa3 Ra6 Ra1 Qh5 Rd1 Rd6 Ka4 Qg6 Ra1 Bd3 Rad1 f1Q Ra1 Ng4 Rh6 Nh2 Rd1 Qg2 Ra1 Ke7 e6 Bd4 Rd1 Be2 Ra1 Bg1 Rd1 Ndf1 Rd4 a1R Qe5 Kf8 e7+ Kg8 Qf6 Nd2 Rbc8 Bf1 b8R Ra2 R8c7 Rb6 Qf2 Rf6 Ra7 Kg7 Nc7 Ba6 Rb3 Bg8 Qe3 Kf7 Nb5 Ke6 Qf2 Ke5 Qe3 Ref8 e8Q+ Re6 Qf2 Rf6 Qf8 Bf7 Qh8 Be8 Rdc4 Bf7 Qb6 Rc6 Rcb4 Rcc3 Rd4 Rce3
Kq2b2n/1QQ1p3/2QBpB1n/Rq3bb1/4NQb1/2P5/BQ2br2/1r1k2n1 w - - 0 1 illegal: No possible last move, all moves rejected
R3nnr1/bbQ4B/1q1Q3B/n3PKQ1/N4B1p/1Qq3r1/Q2p1rq1/2k1r3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 h6 b4 Ne7 Rh4 Ng8 Nd2 Qa5 Ndf3 Qc7 Rh1 Qd8 Nh4 Bc5 Ra3 Bf8 Rg3 gxh4 g5 Nc6 g6 Nb8 Rg5 hxg5 Kd2 Ke7 Kd3 Kf6 Ke4 a5 c4 d5+ Kf3 Kf5 e3 d3 g7 a4 h6 d2 c5 g4+ Kg2 Ke4 h7 f5 c6 f3+ Kh2 d4 b6 f2 b5 d3 b7 g3+ Kh3 f4+ Qg4 d1R b6 d2 c7 g2 Ba3 Nd7 b8B Bc5 b7 Ba7 Be7 a3 Qg5 f3 Kg4 a2 Bd6 a1Q Ne2 Kd3 e4 Kc2 Kf5 g1R Bf4 Rg3 Nc3 Kc1 Na4 Qc3 Bd3 Ngf6 g8Q f1N Qb3 Rg8 h8Q f2 e5 Rf8 Qhg8 Ne8+ Qgf7 Rg8 Qa2 Re1 Qfb3 Bd4 Ba7 Nf8+ Qe6 Be3 b8Q Bb7 c8Q Qb6 Qeb3 Bc5 Qd6 Bd4 Qcc6 Ne3+ Ke4 Nc4+ Kf5 f1Q Qcc7 Qg2 Be4 Qc6 Rh3 Bf2 Bae3 Na5 Qgh6 Rb8 Bg5 Ne6 Nc5 Bg1 Qb4 N8g7+ Kg6 Qb3 Bf2 Rf3 Bg3 Rbf8 Qh5 Qa3 Bh6 Nc4 Qg5 R8f4 Bf5 Nf8+ Kf6 Rg4 Bf4 Qca6 Bh7 Ne8+ Kf5 Be3 Qdf6 Rf2 Qfd6 Qa7 Rf3 Rg3 Qb5 Bd4 Rb3 Q3a5 Ra3 Qc3 Qbb3 Be3 Ra6 Na5 Na4 Qd4 Ra7 Qb4 Ra8 Ba7 Qa6 Qd4 Qad6 Qb6
3B4/7q/2r1NBBQ/qB3n1Q/1pn4n/prQR2rn/1PB2b2/k1nK3q w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 f5 b4 f6 Ba6 Be3 Bb5 axb5 exf6 Bh6 f5 Bc1 f4 g4 g5 Nc3 f3 Nd5 h6 Nf4 gxf4 Ra6 Ke7 Rg6 Ke8 Rg5 Qc8 Rh5 Qd8 Rh4 h5 g5 Qb6 Rg4 hxg4 Qd2 Qf6 Qd1 Qd8 c4 Ke7 e4 Kd6 h4 Kc5 b6 d5 b7 f5 e5 a5 h5 f2+ Ke2 f3+ Kd2 g3 g6 a4 e6 g2 e7 a3 e8Q f4 g7 d3 h6 d4 h7 Ra6 Rh3 Nh6 g8B Nf5 Rh2 Nh4 Qb3 Qa5 Nh3 g1N Bg2 f1N+ Kd1 d2 Bh1 f2 Qc2 f3 Qc8+ Nc6 b8Q Ng3 Nf4 f1N Nd5 f2 Qg4 Ngf5 Qg6 Ne5 Qa8 N1g3 Bg2 Nh3 Bf1 Rc6 Bf7 Ne2 Qc3 Rg8 Qh5 Rg3 h8B Bh6 Bf6 Be3 Kc2 d1R Qa6 Rd3 Nc7 Rf3 Bg6 Rg3 Bd2 Nc1 Be2 f1Q Ne6+ Kd6 c5+ Kd5 Rh1 Bf2 Bdg5 Nc4 Bd8 Qg1 Bgf6 Qh2 Rd1 Rdf3 Rd2 d3+ Kd1 Re3 Rc2 d2 Bd3 Rd6 c6 Ref3 c7 Rc6 c8B Qh1+ Bf1 Ke4 Qe3+ Kd5 Qe1 Rb3 Rc3 Qh2 Bd3 Qh1 Bc2 Qe4 Nd4 Qe7 Rd3 Qh7 Qa8 Kc5 Ne6+ Kb5 Ba6+ Ka4 Bb1 Rc3 Qa7 Kb3 Bc2+ Ka2 Bb5 Rb3 Qg7 Ka1 Qgh6 Na2 Ke2+ d1Q+ Kf1 Qb1 Ke2 Qc1 Qed2 Qg1 Qc3 Qg2 Kd1 Nc1 Qe5 Qd5 Qc3 Qh1+
R2qN1QK/5b2/2Q5/2b2Np1/1BQ1pq2/1N1p1rPN/3r2qq/1N1k1nbq w - - 0 1 legal: proof: b4 a5 f4 axb4 a4 c5 d4 cxd4 g3 h5 Nd2 h4 Ra3 h3 Rc3 Qb6 Rf3 Qd8 e3 f5 Bc4 d5 Rf2 d3 Rg2 hxg2 e4 d4 Be6 Nd7 Bd5 Ndf6 Be6 Nd5 exd5 Ra7 Bf7+ Kd7 Bh5 Ra8 Bf3 Ke8 Be4 fxe4 Kf2 Kf7 h4 Kf6 c4 Kf5 c5 b5 h5 e5 a5 g5 d6 e3+ Kf3 b3 h6 e2 d7 e1B a6 b2 c6 b1Q h7 b4 a7 b3 c7 b2 Qc2 Nh6 Qc4 Ng4 Nh3 Qa2 Nb1 g1Q Bd2 Bf2 Bb4 Ba6 c8N Qf6 d8N d2 Nb7 Qh2 Na5 Bc5 Nb3 Rf8 h8Q Bg1 Qhg8 Ne3 Qgd5 Nf1 Qc6 Rb8 a8N d3 Nc7 Qd8 Ne8 Qa4 Qc3 Bc4 Qd4 Bf7 Ncd6+ Kg6 Ke4 Kh5 Kf5 d1Q Qc3 Qdd2 Qc4 e4 Ke5 Kg4 f5 Kf3 f6 Ke2 Nf5 Qg2 Rh2 Qa2 Rh1 Kd1 Rh2 Bh5 f7 Qf4+ Ke6 Qd5+ Kf6 Qd8+ Kg7 Ra8 Na3 b1Q Rh1 Qbc1 Nb1 Qae2 Kh7 Ra2 Kg7 Rd2 Kh7 Rg8 f8Q Bf7 Qg7 Rf8 Qg8 Qb2 Rh2 Qh1 Rf2 Qc2 Rf3 Qeh2 Kg7 Rg2 Kh8 Qe2 Rf2 Qef3 Ra2 Rd2 Ra4 Qfg2 Ra8 Bg6 Qb6 Qe5+ Nfg7 Rf3 Qc6 Qf4 Nf5 Bf7
1NR5/Nq5Q/r5PN/2BN1NK1/2r1n3/pbpq1b2/3nkN2/1N1b1qb1 w - - 0 1 legal: proof: f4 a5 b4 d5 h4 b5 a4 e5 axb5 exf4 c4 g5 cxd5 gxh4 e3 a4 b6 Bg7 b7 Bxa1 b5 Bg7 b6 Bf8 Bb5+ Ke7 Be8 Kxe8 Ke2 Kd7 Kf3 Kd6 g4 Ke5 d3 f5 d6 h5 g5 c5 g6 h3 d7 c4 e4 Kd4 e5 a3 e6 h2 e7 c3 e8N h4 Nd2 h3 Nc7 Bc5 Nd5 Nf6 Qf1 Nc6 b8N Ra6 b7 Na5 Nb1 Ne4 Qe1 Nb3 Qh4 Qe7 d8N Be6 Nf7 Rc8 Nd6 Ba7 Qh7 Rc4 Nd7 Qf7 b8N Bb6 N7f6 Qb7 Ng4 Nbd2+ Ke2 Bc5 Nh6 f3+ Ke1 f2+ Ke2 Nf1 Kf3 f4 Bd2 Bg8 Kg4 f3 Bc1 Nfd2 Ndf5+ Ke5 Kh4 f1Q Kh5 f2 d4+ Ke6 Kg4 Qd3 Kh4 f1Q Kh5 Nf3 Bg5 Ba7 Be7 Nfd2 Bc5 Bb6 Nf6 Bf7 d5+ Ke5 d6 Kf4 d7 Bg8 d8N Be6 Ne2+ Kf3 Nf4 Ba7 N4d5 Ke2 Ndc6 Bf7 Rg1 h1B Rg5 h2 Nfg4 Bf3 Kh4 h1B Nf2 Bb6 Na7 Bh5 Be7 Be3 Bc5 B1f3 Rg4 Be8 Rg5 Ba4 Rg4 Bb3 Rf4 Nf6 Re4 Bhg4 Re8 Nfe4 Rc8 Ke1 Nd1 Bg1 Nf2 Bfd1 Qg7 Ke2 Qh7 Bh3 Kh5 Bg2 Kg4 Bf3+ Kf4 Nd6+ Kg5 N6e4+
1B2b2k/nB1n4/b1Q1K1R1/P1p1qB2/2N1Bbrq/b1p5/4b1rB/4B1bB w - - 0 1 illegal: No proof kernel
3q1rr1/3N2n1/R5nQ/Qb1n1q2/bQ1N1N1P/K3kr2/1n3b1Q/Rr1Q4 w - - 0 1 legal: proof: f4 a5 b4 d5 g4 e5 a4 exf4 c4 h5 cxd5 hxg4 e3 b5 axb5 a4 b6 a3 Ba6 Bxa6 b5 a2 Ba3 Bc8 Be7 Qd7 Bd8 Qxd8 h4 Kd7 d4 Kd6 Kd2 c5 Kc1 f5 Kb2 g5 b7 g3 b6 g4 e4 f3 Nc3 f4 Qd2 g2 Qc2 f2 Qd1 f1B Qf3 c4 Rb1 a1R Qg3 Nf6 Qe3 f3 Rc1 f2 Re1 g3 Na4 Ra3 Nc5 Rg8 Ne2 g1N Ra1 g2 Nd3 Na6 b8Q+ Nc7 b7 Ne8 Ndf4 Nh3 Rh2 g1R e5+ Kd7 e6+ Kd6 e7 Ng7 e8Q Bd7 Qc1 Rf3 Qe4 c3+ Kb3 Ba4+ Ka3 c2+ Qce3 Kd7+ d6 c1N d5 Nd3 Qb4 Nb2 Nd4 Bfb5 Rg2 Be7 Rg6 Rb1 Rf6 f1Q Re6 Ke8 d7+ Kf7 Ra6 Bc5 d6 Nd5 Qc7 Kf6 b8N Bb6 Qc2 Rf8 Qh2 Qd3+ Qc3 Qf5 Qb4 Bd3 Qc1 Ke5 Qd1 Ke4 Qdd2 Qc8 d8Q Qc7 Qd1 Ke3 d7 Bdb5 Qf6 Ba7 d8Q Qcd7 Nd3 Nhf4 Qda5 Ng6 Nf4 Qc7 Qfd6 Rg8 Nd7 Raf8 Qf6 Qd8 Qg5 Bb8 Qh6 Be5 Nde2 Bc3 Nd4 Be1 Qc7 Bg3 Qca5 Bf2
b1RK1r2/1p1n2q1/1R6/3P1nb1/bQ2n1Nb/Q2Nq1qN/R3N3/n1N2k2 w - - 0 1 illegal: Other
2R2B2/rqQq4/k1p2nQq/P4npn/3RRn2/5BRr/6bb/2R1QK2 w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 f5 gxf5 b3 Nf3 h6 Ng5 hxg5 e4 b2 e5 g4 e6 Bxe6 cxd5 Bc8 Na3 Rh5 Nc4 Rh8 Nd6+ Kd7 Ne8 Kxe8 d4 Kd7 f4 b1Q h4 e5 h5 b5 f6 g5 d6 Kc6 d5+ Kb7 a5 e4 h6 e3 d7 e2 f7 b4 h7 g3 f5 g2 d6 g1N f6 b3 Ra2 b2 Bh3 Qg6 Ra4 b1Q Ba3 Nc6 Re4 Ra7 Bg2 Qh6 Bf3 Nh3 Rf1 Bg7 f8Q Nf4 f7 Ka6 Qe8 Nh5 f8R Nd4 Qg6 Qb7 Rfe8 Qe7 d8R Be5 d7+ Ngf6 Re3 Qf7 Bf8 Bh2 R8e4 Nf5 Kf2 e1N Rc3 Rg8 h8R Ng2 Qe1 Ngf4 Rc1 Rg7 Rg1 Rh7 Kf1 c6 Rg3 Qe6 Re8 Qd6 d8Q Be6 Qc8 Bd5 Qc7 Qd7 Rd4 Be4 Bd1 Bh1 Bf3 Re7 Rg8 Re2 Ree4 Rg2 Rg4 Rg3 Rh8 Rh3 Rg3 Ne6 Rg8 Nef4 Bc5 Ng4 Rc8 Ngf6 Bf8 Bg2+
2R1RKb1/2pRBR2/knN2b1b/q1Q2rbR/3p2Q1/1r4PR/2pb4/4r3 w - - 0 1 illegal: No possible last move
5q2/1q1R4/1p6/QB1RR1pB/pQ2K1R1/1q1qn2p/bRBq1bP1/k3n3 w - - 0 1 legal: proof: d4 g5 h4 c5 a4 cxd4 h5 b6 a5 Bh6 a6 Bg7 Bd2 Bf8 Ba5 bxa5 Ra3 Nc6 Ra4 Rb8 Ra1 Rb6 Nf3 Nb8 Ng1 Rg6 hxg6 Bh6 Rh3 Bg7 Rh1 Bf8 e4 h5 b4 d5 b5 d3 b6 f6 b7 d4 Nd2 f5 Nc4 Qd5 Nf3 Qd8 Nb6 axb6 Nd2 Rh7 Rg1 Rf7 Rh1 Rf6 Rb1 Rd6 Ra1 Rd5 exd5 Nc6 Ne4 fxe4 Qf3 Nb8 Qe2 Nh6 Qd1 Ng8 Kd2 Kd7 c4 Kd6 f4 Kc5 a7 Kb4 a8R e5 g7 a4 c5 e3+ Ke1 Kc3 c6 Kb2 f5 e4 f6 h4 c7 e2 Kf2 e3+ Kf3 e1Q f7 d2 d6 d3 d7 e2 Ra5 Na6 b8R Nh6 g8B Bc5 f8Q Nf5 Bh7 Bf2 Ke4 Nb4 Rb7 Ne3 Re5 Nbc2 Rb1+ Ka2 Qe7 Qf8 d8R Be6 c8B h3 Rb4 Bc4 Bg4 Be6 Qc1 d1Q Rdd5 Qed2 Rbd7 Ne1 Qcc5 Qb3 Bh5 Ka1 Qed6 Qdd1 Qe7 d2 Qa5 Qc1 Rc4 d1Q Qeb4 Qdd2 Rcd4 Qc6 Bf5 Qb7 Bfg6 N1c2 Bf5 e1Q Bb5 Qeb1 Rc1 Ne1+ Rc2 Qbd1 Rb2 Qb1+ Rd3 Qbc1 Bfg4 N3c2 Rg3 Ne3 Bd1 Qcc3 Rg4 Qa2 Bc2 Bg8 Bc6 Qaa3 R5d6 Ba2 Rdd5 Qab3 Bb5 Qcd3+
2k1n3/2bp1R2/1n1r1QQ1/q2bNK2/1nN4q/Q3R2r/2brRPQ1/3r1Qr1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 h5 cxd4 g4 Qc7 Bc4 Qd6 Bf7+ Kd8 Bg6 Qh2 Bf4 Qg2 Bg3 Qh2 Bh4 gxh4 g5 Qc7 Bf5 Ke8 g6 Qb6 g7 Qd8 Bg6+ hxg6 Kd2 e5 b4 a5 c4 e3+ Kd3 e4+ Ke2 h3 c5 g5 c6 a4 c7 h2 b6 a3 b5 g4 h6 d3+ Ke1 d2+ Ke2 g3 h7 g2 b7 a2 b6 Nc6 b8Q Bd6 b7 Nb4 Qa7 Nf6 b8R Nbd5 Qb7 Ra6 Qa7 Bb7 c8Q Bc7 Nc3 Nb6 Qc1 d1R Nf3 g1R Na4 Bd5 g8Q+ Ke7 Qg6 Ne8 Rb1 a1Q Nb2 Qa5 Qcb7 Rd4 Qf1 Rd2+ Ke1 e2 Ne5 Bb3 Nbc4 Bc2 Rb4 Nc8 Ra8 Rad6 Rb3 Nb6 Qc6 Rg2 Rg1 h1B Re3 Rg3 Qcb7 Rg8 h8Q Rh3 Rgg3 Bg2 Rgf3 Bh1 Qgh5 Rg1 Qg6 Qc5 Ng4 R2d5 Qaa6 Bd3 Kd2 e1R Nge5 Rd1+ Kc3 Qb5 Re1 e3 Qc6 e2 Qa2 Bc2 Ra3 R5d2 Rb3 Qc8 Qa3 Kd8 Qce4 Qa4 Qeg4 Qa7 Qg3 Qaa6 Rf7 Bf3 Qgg2 Bd5+ Qd3 Qa5+ Kd4 Bb8 Qh6 Kc7 Qhg7 Qd8 Qh6 Qg5 Qf6 Kc8 Rc3 Bc7 Rb3 Be6+ Ke4 Qh5 Kf4 Bd5 Qdg6 Qh7 Re3 Qh8 Q2e4 Qh4+ Kf5 Ra1 Rd1 e1N Rc1 Nd3 Rce1 Rb1 R1e2 Rbd1 Qeg2 Nb4+
r1N1B1br/1B4qQ/1bn1r2B/1p3R2/r2PQ3/B2n1nr1/k5BB/3Kb1r1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 g5 a3 a5 Bb2 axb4 Bc1 g4 a4 h6 Ra3 h5 Rf3 Qd7 Nc3 Qd8 Ne4 Bd7 Nf2 gxf3 g4 Bf5 g5 Bc8 Ng4 hxg4 e4 Kd7 h4 Kd6 d3 Kc5 a5 b5 g6 f5 e5 g3 g7 g2 a6 b3 e6 Kb4 e7 c5 e8B b2 a7 Ka3 h5 f2+ Kd2 c4 d6 c3+ Ke2 f3+ Ke3 f4+ Ke4 c2 d7 Qg5 d8B Be6 h6 Nd7 h7 Ne7 g8Q Qg7 Qe2 Ka2 Qd1 b1R Rh5 Ne5 Ne2 g1B Bg2 f1R Ng3 f2 Ba3 c1N Qe1 f3 Ke3 Ra1 Kd2 N7c6 Nf5 Bb4+ Kd1 Ba5 Bf6 Bb6 d4 Ncd3+ Kd2 Bf7 Qe4 Rfe1 Bg5 f1R Nd6 f2 Bh6 Nf3+ Kc2 Bh2 Rf5 Rg1 Nc8 Bc4 Qf7 f1R Qfe7 Bg3 Qd7 Rb8 a8B Bg8 Bb7 Ra8 Qc7 Re3 Qce7 Be1 Q7h4 Rb1 Qh5 Rb4 Kd1 Rf2 Qh2 Rfe2 Qh3 Bf7 Qh2 Rba4 Qc7 Rf8 h8B Bg8 Qce7 Nh4 Qc7 Rg3 Qce7 Nf3 Qc7 Qe5 Qh7 Qc7 Be5 Qg7 Bb8 Re3 Qg4 Re6 Qe4 Bf7 Be5 Rh8 Bc7 Bg8 Bcf4 Rh3 Bh2 Rg3
1N2K1bn/B1kp1P2/1Nrbr1r1/3q4/1nB2r1r/2BN3b/1Q3N2/NbQ4n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 h4 h6 b4 Bb7 g4 Bc8 Ra3 Qb6 Rf3 Qd8 Rf4 gxf4 g5 h5 Rh3 Qb6 Rg3 Qd8 Rg4 hxg4 Kd2 a5 c4 e5 g6 g3 g7 e3+ Kd3 e2 Ke4 e1R+ Kd5 f3 f6 e4 c5 a4 h5 g2 c6 d3 b6 d2 c7 f2 b5 e3 h6 a3 h7 a2 b7 a1R b6 e2 Ba3 Na6 b8Q Ne7+ Kd6 Bb7 g8N Be4 c8N Ng6+ Nge7 Nb4 b7 Ra4 Qc1 d1B Qa7 Bb3 b8N Bg8 Qb2 Qa5 Qc5 Kd8 Nd2 Rac1 Nb3 Bb1 Nh3 g1R Na1 Rg4 Nb6 Rf4 Bg2 f1B Nf2 Rh4 Bb7 Bh3 Ba6 Rg1 Qcc3 e1N Bc4 Ned3 Qcd2 Rce1 Qbc1 Re2 Bb2 Qg5 Bd4 Ra6 Qdb2 Rf4 Ne4 Nf2 Be3 Nh1 Nf2 Ke8 Kc7 Rg3 Nec6 Qd5 Ne5 Bd6+ Kc8 Rgg4 Ned3 Rh4 Bc5 Re6 Bd4 Bf7 Bc5 Rg8 h8B Rg7 Be3 Bg8 Bc5 Rgh7 Bd4 R7h6 f7+ Ke7 Bhe5 Nh8 Be3 Rhg6 Bc3 Bc5 Bed4 Kd6 Kd8 Re2 Na4 Rc6 Nb6 Ree6 Be3 Ref6 Ke8 Kc7 Na4 Bf8 Ba7 Bd6 Nb6 Re6#
1k2bn2/q2QQrq1/4n2q/2p1bR2/Qb4P1/5R1b/RB2rR2/Kn2nBR1 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 g5 c4 b5 axb5 d5 Nc3 dxc4 Qa4 h5 Qd1 h4 Nh3 f3 Nf4 gxf4 Ne4 Bg7 Ng3 hxg3 Ra6 Bh6 Ra1 Bf8 h4 Kd7 b4 f5 d4 a5 Kd2 g2 Kc2 g1N Kb1 a4 e4 a3 b6 f2 e5 c3 b7 f3 b5 f4 h5 a2+ Kc2 Ra7 b6 Bb4 d5 c5 h6 Qe7 d6 Na6 b8R Nf6 b7 Qg7 h7 Nc7 Bc4 f1Q Rh4 f2 Bd2 f3 Bf4 Re8 h8R Ne6 Rf8 Nh7 Rf5 Nhf8 Bc1 Qe2+ Qd2 f1B Rh2 f2 Bb2 Nf3 Ra8 Bh3 b8R f1N Rf2 Ne1+ Kc1 Kd8 d7 Kc7 R5f3 c2 d8Q+ Kc6 Q8g5 Kc7 Qe7+ Bd7 Rb1 a1Q Bd3 Rb7 Ra2 Qe3 Rba8 Qeh6 Be2 Ng3 Bf1 Ne4 R8a3 Nc3 Rf5 Kb8 Qf4 Ne4 Raf3 Nd2 Qc4 Bc6 Qd7 Re7 Qa6 Rf7 Qa4 Ra7 Qe7 Be8 Qad7 Ra3 Qa4 Re3 Qed7 Ng5 e6 Re2 e7 Nge6 Bf6 Qe5 Rba1 Qd5 Kb2 Qb7 Rb1 c1B+ Ka1 Bca3 Bb2 Bc3 Rc1 Nb1 Rd1 Bab4 Rc1 Rf6 Rd1 Qa7 Rc1 Bf7 e8Q+ Nd8 Qc2 Ng2 Qca4 Be5 Qee7 Nde6 Re1 Be8 Rd1 Re1 Bb5 Rf7 Rc1 Re4 Rg1 Ne1 Bf1 Re2
2R1BB2/Q3R1n1/1pnp4/2k1P1KR/rq1bR1nn/4QbR1/1Q2rn2/3rb3 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 g5 d4 c5 b4 cxd4 Nd2 axb4 Nh3 h6 Nf4 gxf4 Ne4 h5 g5 Qc7 Nf2 Qd8 Ng4 hxg4 Kd2 Ke7 c4 f5 a4 b3 e4 d3 h4 g3 e6 Kd6 a5 b2 e5+ Kc5 g6 b1R g7 b6 a6 g2 a7 g1B e7 f3 e8R f2 Ke3 d2 Kf4 Nf6 g8R Ng4 h5 Qe7 h6 Nc6 h7 Bb7 Qf3 d1N Be2 f1N Rh3 Nd2 Rh5 Bd4 Qe3 Ndf2 Ra4 Nf3 Rgg5 Rg8 h8Q Nh4 Bf3 Qd6 Re7 Rg6 Bb2 Rd1 Rb4 Rg8 Ba3 Rg7 Rg6 Rg8 Kg5 f4 Bd5 f3 Bf7 Rg7 Be8 Rf7 Qd2 Rf4 Qg8 Re4 Qb2 Re2 Qh8 Ne3 Qh6 Nef5 Qb3 Ng7 Qb2 Rb8 a8Q Rc8 Qa7 Ra8 Qb8 Ra4 Qa7 Ne4+ Kg4 f2 Qe3 f1N Kf4 Nf2 Rg3 Nh2 Kg5 Nb8 Qec1 Bf3 Qe3 Kc6 c5 Nhg4 Rc4 Kd5 c6 Qb4 c7 Nc6 Rf7 Bfc5 c8R Bc3 Re7 Be1 Re4 Bd4 Qa5+ Qb5 Bc5 Qb4 Qa7 Kc4 Re6 Kd5 Bf8 d6 Re7 Kc5
1b2B1Q1/1B4qn/2p1pn2/nP3Qb1/qR2R3/1bbK1rR1/R4B1k/2R1b1r1 w - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ne2 g6 Ng1 g5 g4 Bd7 f5 Be6 Nc3 Bc8 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Bh6 Nf2 Bf8 Ng4 hxg4 Ke2 Kf7 h4 a5 b4 f3+ Ke3 a4 d4 c3 d5 g3 b6 f2 f6 Kg6 h5+ Kf5 f7 c2 b7 c6 b5 g2 h6 g1Q d6 a3 h7 a2 d7 Ra3+ Kd4 e3 g6 Kf4 g7 Kg3 Qd3 Qa5 d8Q Qa4+ Qc4 e2 Be3 c1B Qd5 e1B Bh3 f1N Qf5 Nf6 g8B Nbd7 b8R Nd2 Ra8 Bg7 f8R Nb3+ Kd3 Na5+ Qb3 Qg2 Rb1 a1B Bf7 Be5 Rg8 Nf8 Be8 Bb8 Bg4 Qb2 Bf2+ Kg2 Rh4 Bg5 Rc1 Be6 Bh3+ Kh2 Rb4 Ra1 Qa2 Bb3 Ra6 B7h6 Rg6 Bgd2 Rg3 Bc3 Re4 Rg8 h8R Bg5 Rhh4 N8h7 Rb4 Rf8 Rhe4 Bd1 Qg8 Bb3 Qfg6 Rb1 Bc8 e6 Ra8 Nd7 Bb7 Rf3+ Be3 Qba1 Qf5 Ndf6 Ra7 Rb2 Ra6 Rg2 Ra7 Rg1 Ra8 Rf4 Bf2 Rf3+ Ke2 Bb2 Bg6 Nd7 Bd4 Nc4 Re5 Qa5 Be8 Q5a2 Raa4 Na5 Re4 Qa3 Bf2 Bh8 Rbd4 Qc3 Rab4 Qa4 Rd2 Qf6 Rb2 Qf8 Ra2 Bhc3 Rbd4 Ndf6 Rb4 Rf4 Ke3 Qg7 Kd3 Rf3+
nk2q2K/n2p1QQ1/1qnP1Q2/1R3r1b/1N5r/pb1n1Q2/2B3rQ/n1N3Q1 w - - 0 1 legal: proof: d4 e5 b4 f5 d5 Nc6 Bb2 Be7 Bd4 exd4 b5 Nb8 a3 Bb4+ axb4 Qe7 Qc1 Qg5 Qd1 Qd8 e4 g5 h4 gxh4 c4 b6 e5 Nf6 c5 bxc5 Ra2 Ng8 Re2 Kf8 Re3 Ke8 Re4 fxe4 Kd2 h5 f4 a5 g4 d3 Ke3 d2 e6 c4 Kd4 c5+ Ke5 e3 b6 h3 g5 h2 f5 e2 d6 e1Q+ Ne2 a4 b5 h4 b7 h3 g6 a3 b6 c3 e7 c2 g7 c1N f6 c4 Bg2 c3 Qc2 d1N Rg1 h1R Be4 h2 Rg6 Rg1 Bc6 h1B Rg3 Bd5 Rg5 Nb3 Ba4 Na6 b8Q Rg2 b7 Qb6 Qa7 Na1 b8Q Bb3 Qbb7 Rh4 Qf3 Bb7 Rh5 Be4 Nc1 Bg6+ Qce2 c2 Nc3 Nc7 N3a2 Nc3 Nb4 N3b5 Rg5 Qc6 Qg1 Bh5 Kf5 Na7 Qd2 Bg4+ Kg6 Qb6 Rb5 Bh5+ Kh7 Rc8 Qh6 Na8 Kh8 Rc5 Qh2 Rf5 Qhe3 Kf7 Qeg1 Ke6 e8Q+ Ne7 Qd8 Nec6 f7 Qe2 f8Q Qe4 Nca2 c1N Qg5 Nd3 Nc1 Qee3 Qfd8 Kf7 Qdf6+ Ke8 Qgh6 Qe7 g8Q+ Qf8 Qf7+ Kd8 Qhf6+ Kc8 Q7g7 Qe8 Q8f8 Bg8 Q8f7 Kb8 Bc2 Qe1 Qf7g6 Bb3 Qg6f7 Qe8+
K4b2/1QQ1N1nQ/Q2Bq3/pbr3qQ/n5bp/k3n1Rn/1r4QP/2B4q w - - 0 1 legal: proof: b4 b5 d4 f5 a4 e5 axb5 exd4 Ra4 c5 Ra3 c4 Rd3 cxd3 f4 g6 e4 Qc7 e5 Qa5 Nc3 Qd8 Nd5 Qe7 Be2 Qd8 Bf3 g5 Be4 fxe4 f5 Qb6 Nf4 gxf4 Qf3 Qf6 Qd1 Qd8 Kd2 Ke7 c4 h5 g4 d5 c5 a5 c6 f3 f6+ Ke6 b6 h4 g5 f2 f7 f1B b7 Rh6 b5 Ne7 g6 Nf5 g7 Rh5 g8Q Nd7 b8Q Ng7 b6 Nc5 c7 Na4 Qb7 Rb8 Ne2 Qg5+ Nf4+ Ke7 e6 Kd6 e7 Kc5 e8Q Kb4 Qe5 Bg4 c8Q Bfe2 Qh7 e3+ Ke1 Bf1 Qf3 e2 Kf2 d2 Qg2 d1Q Rg1 d3 Ke3 e1Q+ Kd4 d2 Ng6 Bb5 Ne7 Qee2 Qec7 Qe6 Qa6 Qf3 b7 d1N Q8d7 Nf2 Qe8 Rc8 b8Q Nh3 Qbb7 Rb8 Qf2 Qh1 Rg3 Nb6 Qb2+ Ka4 Kc5 d4+ Qd5 d3 Qg2 d2 Qec8 d1N Q8b7 Nb2 Qdf5 N6c4 Qfe5 Nd6 Kb6 Ndf5+ Ka7 Ne3 Qef5 Ka3 Qfg6 Rd8 Qf5 Rd2 Ka8 Qgf6 Qfg6 Rc5 Qgh5 Qg5 Nf5 Be7 f8B Bd6 Ne7 Rf2 Bd2 Na4 Bc1+ Rb2 Nc8 Bf4 Bd6 Be5 Ne7 Bc3 Q7h6 Bb4 Qh7 Ng1 Nc6 Nh3 Bf4 Rc3 Be5 Bf8 Ne7 Rc2 Bd6+ Rc5
Qr3Q2/6r1/2nN1p2/Nq2b3/B3q1PN/2N3RK/nr1kpNN1/2rnq2b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 g5 Qd2 gxh4 Qd3 Nh6 Qd1 Ng8 f4 Na6 b4 Nc5 e5 Bh6 Ra3 Nb7 Re3 Bf8 Re4 fxe4 f5 Na5 f6 Nc6 Be3 Kf7 Bg5 Ke6 f7 Nb8 Bf6 exf6 Qg4+ Ke7 Qh5 Qa5 Qd1 Qd8 Kf2 Ke6 c4 Kf5 g4+ Kf4 Kg2 Ke3 e6 a5 e7 h5 e8Q d5 c5 a4 c6 d3 c7 a3 b6 a2 b7 a1R b5 h3+ Kh2 h4 b6 d4 Qc1+ d2 Qe5 d3 Qd6 R8a7 Qd5 Bd6+ Qe5 Ne7 f8N Qd7 Ne2 Na6 b8N Ra2 b7 Nb4 Na6 Rb2 b8N Nec6 Ng6 Na2 Rg1 Bb7 c8N Re8 Qc4 d1R Qf7 d2 Nef4 Rc1 Qed5 Be5 Qf8 d1N+ Rg2 Ba8 Nc5 Qb7 Bc4 Qb5 Nc3 Rg7 Nd6 Rc8 Qdg8 Rd8 Be2 Kd2 Nd3 e3 Rg3 Re8 Bf3 e2 Ng2 Bb7 Nf2 Rd8 Nd7 Rb8 Nc5 Ba8 Bd5 Bb7 Bb3 Ba8 Kh1 h2 Ba4 Bb7 N2f4 Ba8 Kg2 Bb7 Qh8 Ba8 Ncb7 h3+ Kf3 h1Q+ Ng2 h2 Nh4 Qe1 Na5 Rb6 Qhg8 Bb7 Qa8 h1Q Qgf8 Qh2 Ng6 Qh7 N6h4 Qhd3+ Ne3 Qd4 Kg2 Qe4+ Kh3 Bc8 Qe8 Rb8 Neg2 Be6 Qc8 Bd5 Qf8 Qb1 Ne3 Bh1 Neg2 Qe4
6Q1/2Bp4/K1kr2N1/q2Nq1NN/6N1/1rp1nbn1/r1QPRqN1/3n1nb1 w - - 0 1 legal: proof: e4 b5 c4 g5 b4 f5 exf5 a6 h4 gxh4 Be2 Bg7 Bf3 Bf8 Bc6 bxc4 b5 Bb7 b6 Bc8 Bb5 axb5 Ke2 h5 a4 e5 g4 c5 f4 b4 a5 c3 Kd3 c4+ Kc2 h3 g5 e4 b7 h2 a6 e3 g6 h4 a7 h3 g7 e2 f6 e1Q f5 Qe5 f7+ Ke7 f6+ Kd6 Ba3 Nc6 b8N Rh6 Ra2 Qb6 Ra1 Nce7 Nf3 Nd5 Ng5 Nge7 g8N Qf2 Re1 h1N Nc6 h2 Re2 Nf5 Bb2 Nfg3 Ra5 Bg7 f8N Bb7 f7 Nf1 Nf6 Nhg3 Ng6 h1N f8N Bh8 Nh4 b3+ Kc1 c2 Nfg6 Kc7 Nc3 Nde3 Nh5 Kd6 Ng2 Bf6 Nce7 Bf3 Ned5 Kc6 Nce4 Bd8 Bd4 Bb6 Kb2 c3+ Ka3 c1Q+ Kb4 b2 Nef6 b1R+ Ka4 Rb2 Ng4 Rb3 Bc5 Qb2 Bd6 Bc5 Bc7 Bd4 N6f4 Rd6 Qc2 Bc5 Rb5 Qc1 Ka5 Bb6+ Ka6 Qa3+ Ra5 Ngf5 Qd3 Nhg3 Qb1 Nd1 Ng6 N5e3 Qc2 Rb8 Ng7 Rb2 Nh5 Ra2 a8Q+ Rb7 Qc8 Bc5 Qb1 Rb3 Qc2 Nef5 N6f4 Qe1 Qg8 Bg1 Qc8 N5e3 Ng6 Qf2 Qg8 Qxa5+
K1Nq1k1r/P1q2rn1/1N1pr3/1q1R4/3bbR1p/3nNQN1/1n2r3/4RNQ1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 g5 h5 cxd4 g4 Nh6 Bc4 Qc7 Bf7+ Kd8 Bg6 Qa5 Bf4 Qb6 Bg3 Ng8 Bh4 gxh4 g5 Qc7 Be8 Qa5 g6 Qb6 g7 Qc7 Bg6 hxg6 Nc3 Ke8 Nb1 Qd8 Ke2 e5 Kf3 b5 Ke4 g5 Kd5 g4 f4 d6 a4 e4 c4 d3 f6 e3 a5 b3 a6 b4 h6 d2 f7+ Ke7 a7 g3 h7 b2 c5 e2 f5 e1Q c6 g2 c7 b3 Ra4 Nc6 Ne2 g1R Rf4 Nh6 Ng3 Ne5 g8Q Nd3 Kc6 Qe5 Qf3 d1N Nd2 b1Q Ndf1 Bg7 f8N b2 Nd7 Qa5 Nb6 Rg2 Nc4 Re2 Nce3 Bd4 Qg7+ Ke8 f6 Bf5 Kb7 Rc8 Qg5 Kf8 f7 Bg6 Rg1 Nf5 Qgg4 Ra8 c8N Ng7 Qg5 Qc1 Qc5 b1R+ Qb6 Rg8 h8R Qb5 Rh5 N1b2 Rd5 Be4 Rh1 Nh5 Rg1 Rg6 Rh1 Re6 Rg1 Kg7 f8N Kg8 Nd7 Ng7 Nh2 Qc3 Re1 Rd1 Nhf1 Rdd2 Nc5 Rf2 Na4 Rde2 Nef5 Kf8 N5e3+ Qf6 Ne7 Re8 Nc8 Qc7+ Ka8 Rd8 Qb7 Rde8 Nb6 Rd8 Qg2 Rde8 Qg1 Rf3 Rg4 Qfd8 Qc6 Rf7 Rf4 Rh6 Qc3 Rh8 Qb3 Re6 Qd1 Rg2 Qf3 Re2
1Rr1nn1B/p3R2Q/4n1Br/r1Bpq3/3q3B/P1k2b2/Q5BK/nb2q1Q1 w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 g5 f4 b5 e4 bxc4 e5 h6 e6 Bd6 Nh3 Be5 fxe5 Ba6 Nf4 Bc8 Nd2 gxf4 Ne4 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Kf2 Ke7 Kg2 c5 h4 f5 b4 d5 h5 g3 g6 d3 g7 d2 h6 f3+ Kg1 c3 b5 f4 b6 f2+ Kg2 c4 h7 f3+ Kh3 c2 b7 c3 Bd3 f1R Rg1 g2 Be4 f2 Qf3 d1B Qg4 Qe8 Bf5 Nf6 g8Q Bf3 Bf4 c1N Rb1 c2 Bg6 Nbd7 b8B Ne2 Kh2 c1N Be3 Nd4 Be4 Nf8 a3 Ncb3 Rh1 Rc1 Re1 f1Q Bc7 Na1 Rb8 Qc4 Bb6 Qf1 Bg5 Rc5 Bh4 Ra5 Re3 Qe1 Bc5+ Kd8 e7+ Kc7 e6 Kc6 Q8g6 Ba6 Qg3 Bd3 Qf2 Bc2 Qg1 Bb1 Qg7 Qh5 Re2 Ne8 Qg6 Rg8 h8B Qf5 Qh7 Rg6 Re3 Rh6 Re2 Qb4 Re3 Qb6 Re2 Kb5 Re3 Kc4 Re2 Nc7 e8B Kc3 Bg6 Ne8 e7 Qbf6 Re1 Nde6 Re2 Qd4 Re1 Nf6 e8Q Qg5 Qb5 Ne8 Qe2 Qgf6 Qa2 Qe7 Rb5 Rc8 Rb8 Qg5 Re2 Qge5+ Kh3 N6c7 Rb7 Bh5 Qh1 g1Q Rb8 Qf4 Bg2 Qe1 Re7 Bf3 Qg1 Qf5+ Kh2 Nce6 Qgf2 Qff6 Qg1 Qfe5+
3nN1Bb/1r2QrN1/1k1q4/1P2Br2/b1nNnr2/K1N3p1/3rN1Qp/3Q1n2 w - - 0 1 illegal: No possible last move
5k2/K1Q2PqR/5bb1/2pQRn2/2nrrr2/2QpR1b1/1nRN1r2/N4R1b w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 Ra2 gxh4 Ra6 Bh6 Ra1 Bf8 c4 Nc6 d5 Bb7 b6 Bh6 Be3 Bg7 Bd4 cxd4 c5 Ba6 Bb5 Nb8 c6 Bc8 c7 Bf8 Bc6 dxc6 Ke2 h5 f4 e5 g4 a5 b4 e3 Kd3 e4+ Kc4 h3 d6 c5 Kb5 h2 g5 a4 g6 h4 f5 a3 b7 e2 Kb6 e1N f6 a2 b5 e3 g7 e2 Qd2 h3 Qc2 Rh4 Qc3 Qe7 Nf3 Bf5 Rf1 h1B Nbd2 h2 Rc1 a1B Rc2 Nc6 Nb3 Na5 Nfd2 Rd8 c8R Nh6 g8Q Qg7 b8R Bg6 Qd5 Nd3 Rc7 e1R Ka7 Nc4 b6 Rf4 b7 Nf5 Rf7 Bb2 Na1 Ree4 Rc8 Be7 b8R Bc1 Rc6 Ndb2 Rb3 Rd7+ Rc7 Bd8 Re7+ Kf8 Re5 d3 Rb4 Rf7 d7 Rd4 Rb6 Re7 Re3 Ree4 Re6 Be7 Re5 Rf2 f7 Bf6 Rc6 Ref4 Rce6 Rfe4 Rh3 Rff4 Rh7 Rf2 Nb1 Bf4 Nd2 Bg3 Re7 Bf3 R7e6 h1R Re7 Rf4 Re3 Rhh4 R7e6 Bh1 R6e5 Ncd6 d8Q+ Ne8 Q8d7 Ned6 Qc7 Ndc4 Re6 Rfe4 Re5 Rhf4
N2n4/3N1Nq1/rKNP2B1/1b1B2bp/2qrp1Qr/3k2BQ/r1nN4/q2q4 w - - 0 1 legal: proof: g4 b5 a4 d5 axb5 f5 b4 g6 e4 fxe4 h4 Bh6 c4 dxc4 g5 Be6 h5 Bg7 h6 Bf8 Rh5 Bh3 Ra6 gxh5 g6 Bg4 g7 Bc8 Rg6 hxg6 Ke2 Kf7 Ke3 Ke6 d4 Kd5 f4 c5 h7 a5 f5 e5 b6 a4 f6 a3 b7 g5 b5 a2 f7 a1Q b6 c3 Bd3 g4 Nd2 c4 Ngf3 g3 Qe2 g2 Qd1 g1Q+ Ke2 c2 Nb1 e3 Nfd2 c3 Bf5 e4 Na3 Nh6 g8B Ra6 Qf1 Be7 f8Q+ Nf7 Nac4 Qg7 Bg6 Bd7 Qh3 Nc6 b8N Bg5 b7 Nb4 Nc6 Ra2 Ba3 c1R b8N Nc2 Bd6 Rh1 Bg3 Ra6 Qg4 Rh4 Qa3 Qc8 Qb3 Be8 Qa3 Qe6 Nd7 Nd8 B8f7 Rf8 Bg8 Rf1 h8N Rd1 Nf7 Qd6 Nb2 Qc7 Na4 Qc8 Nf1 Kc4 d5 Rd4 d6 Nb4 B6h7 c2 Bg6 c1R Qc3+ Kd5 Nd2 Rc2 Qf3 Ra2 Nab6+ Ke6 Qd3 Nc2 Na8 Kd5 Qg4 Qc7 Nce5 Qc4 Nc6 Ne1 Kf1 e2+ Kf2 Be7 Ke3 Nc2+ Kf4 e1Q Qf1 Qec1 Qh3 Ne1 Ke3 Qd1 Nf6+ Kc5 Nd7+ Kb5 Nh8 Bf6 Bd5 Be7 Nf7 Nc2+ Kf4 Bg5+ Kf5 Qg8 Ke5 Qg7+ Nf6 Rd3+ Nd4+ Kc5 Nf1 Nb7 Nd2 Kb4 Ke6 Bb5 Nc6+ Kc3 Kd7 Rd4 Kc7 Nd8 Nd7 R6a3 Kb6 Kd3 Qf5 Ra5 Qfg4 Ra6+
B1r3qN/1b1bQq2/1pBb1B2/1P3q2/rnn3qK/6p1/Qb2BB1k/2R2B2 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 f4 exf4 b5 g5 Qb3 g4 Qb4 axb4 a4 h6 Ra3 h5 Rf3 Ra5 Nc3 Ra8 Nd1 Ra5 Nf2 gxf3 g4 Ra7 g5 Ra8 Ng4 hxg4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 g6 c4 h5 b6 g7 b3 h6 b2 h7 b1Q a5 c3 a6 c2 a7 Nc6 Be2 Nb4 Bf1 Ne7 g8B Bd7 Be3 c1B Nh3 Bb2 Ng5 Ng6 Rg1 Rc8 a8B Ne5 Be2 Qa1 Rc1 Qa4 Bf1 Nc4 e5+ Kc7 e6 Bd6 Bf7 Qg8 e7 Qd1 e8B g3+ Kg1 f2+ Kg2 f3+ Kh3 f4+ Kh4 Qa4 Be2 f1B Bf2 Bg2 Bf1 Kd8 Bh5 Ke7 Nf7 Kf6 Bg4 Kg6 Bh5+ Kf5 Bg4+ Ke4 Bh5 Be5 d6+ Kf5 d5 Bh1 Bd4 f2 Bhe2 f3 Bc5 Bc6 d7 Bd6 d8Q Bd7 Qe7 Kf4 Bh3 f1Q Bg1 Qf2 Bhf1 Qc5 Bd4 f2 Bf6 Qc2 Bd4 Qf5 Bf6 Qd4 Qe6 Bb8 d6 Bb7 Qd5 Bdc6 d7 Bd6 d8Q Bd7 Qe7 Qde4 Bg2 f1Q Bd4 Qff3 Bgf1 Qee6 Bf6 Ke3 Qd2+ Kf2 Qd5 Kg1 Qd2 Bd4 Qa2 Bb2 Bd4+ Kh2 Be3 Qgg6 Bf2 Rf8 h8B Qg8 Bc3 Qeg6 Nh8 Q6h7+ Bh5 Qhf7 Bf6 Rfe8 Qd8 Re3 Qe7 Ra3 Bg4 Ra6 Bgh3 Ra4 Bhg2 Q3d3 Bd5 Qdf3 Bc6 Q3g4+
3B4/1np1q1Q1/2BQ1r2/Q2NB3/n4b1K/P1rn1p2/n1bqN2k/bB3B1b w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 g5 a3 a5 Bb2 axb4 Bc1 g4 Ra2 h5 Rc2 Ra7 Rc3 Ra8 Rf3 gxf3 h4 Qd7 g4 Qe7 g5 Qd6 Rh2 Qe7 Rg2 Qd8 Rg4 hxg4 Kf2 Ke7 e4 Kd6 d4 b5 h5 f5 g6 b3 g7 g3+ Ke1 b2 h6 f2+ Ke2 f3+ Ke3 b4 Kf4 b3 h7 g2 Kg3 f4+ Kh2 Nc6 Qd3 Na5 Qc3 Bb7 Kh3 Ra6 Qc4 Ne7 g8B Nec6 Bd3 f1B Qa4 f2 Kg4 Qe7 Be3 Nb4 Kh5 Bg7 Nh3 g1B Nc3 b1N Ne2 Nc3 Bb1 b2 Bf7 Rb8 h8Q Nca2 Qh7 f3 Nhf4 Bh2 Qg6+ Bf6 Qg7 Bg2 Be8 f1Q Bb5 Qc1 Bc6 Nb3 Qa5 Nd3 Bd2 Bh1 Bc3 Qd2 Bb5 Bc6 e5+ Kd7 e6+ Kd6 Kg4 Nbc5 Bc4 Nb7 Bb5 Qf8 e7 Rd8 e8B Qe7 Bc4 Ba4 Bc6 Be5 Kh3 Rf8 Kg4 Rf6 Kh4 Bb3 Ng2 Rb6 Ne3 Bc2 B4b5 Bhf4 Ba6 Qf7 Bc4 Rb3 Ba6 Ke7 d6+ Ke6 d7 Qe7 Nd5 Kf5 d8Q Ke4 Qd6 Kf5 Bab5 Ke4 Nb4+ Ke3 d5 Kf2 Qf7 Kg2 Qg7+ Kh2 Ba6 Bd4 Bc4 Bc5 Be5 Rc3 Qe6 Nf2 d6 Nd3 d7 Bd4 d8B Ba4 Bc2 b1N Qd6 Bb3 Nd5 Ba4 Bd1 Bc2 Ba6 Rb3 Bc4 Ba1 B4b5 Nbc3 Ba6 Bb1 Bc2 Na4 Bc4 Ne1 Bf5 Rc3 Bcd3 Bc2 Bh3 Bd1 Bb1 Bc2 Bf1 Nd3
1rq5/2pq1R2/R1QPbN1k/4R1Rp/1qr5/nN2n2q/R7/bb1b1KNQ w - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 e5 b3 exf4 a4 b5 axb5 h5 Ba3 h4 Bb2 Bb7 Bc1 Bc8 g5 g6 Bh3 Bd6 Bg4 Qf6 Ba3 Ne7 Bh5 Ng8 Bc5 Qc3 Bf2 Qd3 Bg3 hxg3 h4 Bc5 Bg4 Qd8 h5 Be7 h6 Bf8 Bh5 gxh5 d4 f5 e4 Kf7 d5 Kg6 b4 a5 d6 g2 e5 c3 h7 f3 e6 a4 b6 f4 b7 a3 b5 f2+ Ke2 f1B+ Ke1 c2 e7 c1Q e8N a2 b6 f3 Rh3 Qc3+ Kf2 Be6 Qd4 Nf6 Na3 Nd5 Nc2 Bd3 Rf1 a1Q Qe5 Nd7 b8Q Nf4 b7 Qab2 Rh1 Qbb4 Na1 Qc8 Nb3 Bb1 Qc5 Ra4 Qc6 Nb6 Qa8 Nc4 b8R Na3 Rb5 Bg7 Rh2 Qd3 Rf5 Ba1 Re5 Qd7 Nf6 Rb8 h8R Qa6 Re8 Qac8 Rf8 Kg7 g6 Kh6 Kg3 f2 g7 Nc4 g8R Na3 Rfe1 f1B Kf2 Be2 Rgg5 Bd1 R1e2 Qbb7 Rh1 Rc4 Rf7 Qb4 Ra2 Qc3 Ne2 Qh3 Rf1 g1Q+ Ke1 Qa7 Ng1 Qd4 Rff2 Qf3 Kf1 Ng2 Qab7 Qh3 Rfb2 Nc2 Ra6 Na3 Ra2 Qd2 Qe4 Qdc3 Qbc6 Qb4 Qh4 Qhc3 Qh2 Qh3 Qh1 Ne3+
1bB1qBn1/P3bKNp/3b1Br1/Q2rp3/n2n3B/Q1qb4/B2N2nk/2N5 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 h4 axb4 d5 g5 hxg5 e5 Rh3 Qe7 Rh1 Qd8 a4 f6 g4 Qe7 e4 Nc6 Ra3 Nb8 Rd3 Qd7 Rd4 Qd8 Rh3 Ra6 Re3 exd4 e5 Ra7 e6 Ra8 Re5 fxe5 Kd2 Ke7 f4 c5 f5 b5 a5 b3 g6 Kf6 d6 Kg5 e7 Kh4 e8B Kg3 f6 b2 a6 d3 Kc3 b4+ Kd2 c3+ Ke3 d2 Ke4 c4 Kd5 c2 d7 c3 Ke6 b3 a7 Nc6 g7 Kh2 g5 Be7 f7 Ba6 f8B Bd3 g6 Nd4+ Kf7 Qa5 Qg4 d1N d8B Ne3 Qc8 Ng2 Bg5 c1B Qc5 c2 Ne2 Qc3 Nd2 b1N Qa5 Bca3 Bh4 c1B Bd7 b2 Bc8 Bad6 Bf6 Bc7 Bh4 Bed6 Bdf6 Rb8 Qa3 Rb5 Qa5 Rd5 Qa3 Ne7 g8N Bb8 Nh6 Ng8 g7 Be7 Nf5 Bed6 Nc4 Bd2 Nc1 Bg5 Bd8 Bge7 Nd2 Qc5 Be2 Nc3 Bd1 b1Q Bb3 Qb5 Ba2 Qc2 Bf6 Na4 Bh4 Nf6 g8Q Qc3 Qg6 Rg8 Ng7 Qd7 Qg4 Qdc6 Qd7 Qa8 Qb5 Qac6 Qa5 Qb5 Ne8 Rg6 Ng7 Ng8 Bf6 Bc5 Bh4 Bed6 Bdf6 Be7 Qa6 Bcd6 Qa5 Qe8+
rb2Nrr1/nBB3r1/q1Q1n2p/2PB1B2/8/Qb5q/p1pK1r1B/RB3k2 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 h4 bxa4 b5 Qa5 Na3 Qd8 Rb1 e5 hxg5 exf4 Rb4 cxb4 c5 Kd7 Nc4 dxc4 Qb3 Ke7 Qd1 Ke8 d4 Ke7 e4 Ke6 g4 a5 g6 f5 b6 f3 d5+ Ke5 g5 f2+ Ke2 h6 g7 a3 d6 c3 b7 b3 g6 a2 d7 a1Q Qd2 a4 Rh4 f4 Nh3 b2 Qd3 b1R Ng5 c2 Bg2 f1R Kd2 a3 Rh1 f3 Nh7 Kf4 e5 Kg3 e6 Kf2 e7 Nf6 e8B Bd6 g8B Nd5 g7 Nc7 Nf6 Ne6 Bg6 Nc6 b8Q Rb7 Ne8 Na7 Bf5 Qh4 d8B Qh3 Bc7 Bh2 Bf7 Rg8 Qd7 Qa2 Qc6 Qc4 Bb2 Qa6 Bbe5 Bd7 Qd8 Bc8 Qd3 Bd7 Qce4 Ba4 Qc6 Bb3 Qc3 Nf4 Bd5 Ne6 Bb8 Rf7 Bec7 Rg1 Qb2 Rgf8 g8B Rg7 Bf1 R1g5 Bg2 Bg3 Bf7 Rgg8 Ra1 R5g7 Kc1 Kg1 Qa2 f2 Kd2+ f1R Bge4 Bh4 Bh2+ Kf2 Bbc7 Bg3 Qb2 Ba4 Ba2 Bb3 Bb1 a2 Qa3 Bd6 Ba5 Bb8 Bac7 Re1 Bd5 Kf1 Bh5 Re5 Bhf3 Re1 Qd6 Re5 Bb7 Re3 Bfd5 Rf3 Qc6 Rf2+
2b1R1Q1/nk2r2p/3pR2q/1q3Pq1/2RBR3/1RBK2pq/3qB3/2br2nQ w - - 0 1 illegal: No possible last move, all moves rejected
3k4/1qq1q3/b1Bpnr1r/2B1Q1R1/n1QN1QK1/1pnPQ3/pq4b1/5Q1Q w - - 0 1 legal: proof: f4 b5 b4 e5 a4 exf4 g3 bxa4 b5 c5 Ra3 Bd6 Rb3 Bf8 Rb4 cxb4 Bg2 f5 Kf2 f3 Ke3 f2 Kd3 f4 Nc3 f3 Ne4 Bd6 Bf1 Bf4 gxf4 h6 Ng5 hxg5 Bb2 g4 Ba3 Qb6 Bc1 Qd8 Ke3 g5 c4 a5 h4 d6 b6 a3 c5 a2 f5 a1Q h5 b3 d3 g3 h6 a4 b7 g4 Kf4 a3 e4 g2 c6 a2 c7 g3 f6 Qb2 h7 Na6 b8Q Ne7 e5 Nc6 e6 Nc5 e7 Nd4 Qa7 Ba6 c8Q Nde6+ Kg4 Na4 Qc4 Qc7 Ne2 g1Q Rh5 g2 Nd4 Qh1 Rg5 g1N Be3 Ne2 Bg2 f1B f7+ Kd7 f8Q f2 Qac5 Nec3 Qf4 Raf8 Qce5 Rf6 Bc6+ Kc8 Qa1 Bg2 Qb1 f1Q e8Q+ Nd8 Bg1 Qe1 Q8e7 Qe3 Qbf1 Qe1 Qee3 Ne6 Qg7 Kd8 Bf2 Rhf8 h8Q Rh6 Qhh7 Rf5 Qge5 Rff6 Qhe4 Rhg6 Bg1 Qhh7 Qe4f3 Rh6 Qh3 Qb7 Qh1 Qhc7 Qee2 Bd5 Qef5 Qa7 Nc2 Ng7 Bc5 Qab7 Nd4 Bg2 Qed2 Qe6 Qde3 Qee7 Q5e5 Ne6
n2b1qQq/K3Pq2/2b1Rp2/Np2p3/Qn2rQ2/N2R2R1/6rQ/krr1Q3 w - - 0 1 legal: proof: f4 h5 g4 a5 gxh5 e5 b4 exf4 e4 axb4 e5 c5 e6 c4 e7 c3 Bb2 cxb2 Bg2 Ra7 Bd5 Ra8 Be6 dxe6 Kf2 Kd7 Ke2 Ra5 Ke1 Ra8 Kf2 Kd6 h4 Kd5 c4+ Kd4 a4 g5 c5 b5 h6 b3 h7 f3 c6 f6 c7 g4 a5 Nh6 h5 Nd7 a6 Nb6 a7 Bd7 c8Q Nf5 h6 Rg8 h8Q Bc6 h7 Bh6 Qc7 Qf8 Na3 b1Q Qe1 b2 Rh3 Ne3 Rg3 Ned5 Ne2+ Kd3 Ra2 Nb4 Nd4 Bf4 Nb3 Qc1 Qce5 b1R Na5 Qc4 Qg5 Rc8 a8Q Bc7 Qf4 Bd8 Ra1 Rg5 Qg8 Re5 h8Q Re4 Qh2 Qd5 Qa6 Na8 Ra2 Kd4 d3 Qh5 Re2 Qh8 Re3 Rd1 Re2 Rd2 Qa7+ Kc3 d4 Kb2 d5 Ka2 d6 Qf7 Nb1 Ka1 d7 Qf8 Qa6 Rb2 Na3+ Rb1 Rd2 Rc7 Rd6 e5 Re6 Rd4 Ke3 f2 Qa7 Re4+ Kd2 f1R Kc3 Rf2 Qd4 Rc8 Qdd1 Rg2 Qa4 Bc7 d8R Qf7 Rf3 g3 Rdd3 Bd8 Rfe3 Ra2 Rf3 g2 Rg3 g1Q Rgf3 Qgg7 Rg3 Rd1 Kb3 Rg2 Kc3 Qgf8 Kb3 Nc2 Kc3 Nd4 Kb4 Nc2+ Kc5 Nb4 Qfg5 Rb1 Qf4 Nc7 Kb6 Na8+ Ka7 Be8 Qgg5 Rcc1 Qg8 Bc6
Rb3Q1b/N1pk4/r1q2RpR/1Q1p2n1/1qR1nK2/N2P1br1/1p2r3/1N4R1 w - - 0 1 legal: proof: e4 f5 exf5 a5 b4 axb4 f4 g5 f6 Ra4 c3 bxc3 f5 Ra8 g4 Nc6 Bc4 Ra7 Ba3 Ra5 Bd6 Bg7 Bf4 gxf4 g5 Ra7 g6 Bf8 g7 Nb8 Be2 Ra8 Bf3 Nh6 Bh5+ Nf7 Bg6 hxg6 Qc2 Nh6 Qd1 Ng8 Kf2 d5 Kf3 b5 h4 e5 a4 e4+ Kg4 b4 h5 e3 a5 f3 h6 b3 f7+ Kd7 f6 b2 d3 c2 h7 c1Q a6 f2 a7 f1R Nd2 e2 Ngf3 e1B Ra4 Qe7 Nc4 Rf2 Rg1 Bc3 Nfd2 Na6 Na3 Re2 Ndb1 Nc5 Rc4 Ne4 Qb3 Qb4 Kf3 Qc2 Kf4 Bc5 f8Q Ng5 f7 Nf6 g8N Nfe4 Ne7 B3d4 Nc6 Bb6 Qc5 Re8 f8R Bh8 Qf2 Re3 Rf6 Rg3 Nd4 Re6 Ndb5 Bd4 Qa4 Ra6 Qf3 Rb8 a8R Ba7 Qb3 Rbb6 Qf1 Bb8 Na7 Re6 Qf2 Re8 Qc5 Re5 Qf8 Ree6 Rd4 Qc6 Rc4 Nc3 Qa4 Re2 Qb5 Nce4 Rf5 Bf6 h8R Bc3 Rh6 Bh8 Qf7+ Kd8 Rf6 Bg4 Qg7 Bf3 Qf8+ Kd7
3b2N1/1k3nn1/2p1nP1r/2q3Qr/nK2RQ2/QN1rRbn1/6qR/5N1R w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 d5 cxd5 f5 e4 fxe4 Ba3 b5 axb5 a4 Bb2 a3 b6 a2 Bf6 Nxf6 b5 Ng8 Be2 Bb7 Bg4 Ba6 Bc8 Bxc8 d4 Kd7 Kd2 e5 Kc3 h5 g4 e3 f4 c6 f5 e4 g5 h3 g6 h2 d6 h4 d5 h3 g7 e2 b7 e1Q+ Kc4 e3 f6 e2 b6 Be7 Qd2 Qc1+ Qc3 e1N Ne2 Rh6 Nd4 Ng2 Kb3 Ra3+ Kc4 Ne3+ Kb4 Nf5 Qe1 Rd3 Nb3 Qf8 Qc3 Qd2 Re1 h1R Re4 Qg2 N1d2 h2 Nf1 Bd8 Qd2 Rh5 Qg5 Ngh6 g8N Nf7 Rae1 a1N R1e3 Qe7 Qf4 Ke8 Qg5 Nd7 b8R Ng7 b7 Nf8 Ra8 Kd7 b8Q Qe5 Ra2 Nfe6 Qa8 Qf5 Qa3 Ba6 Qf4 Kc8 d7+ Kb7 d6 Bc4 Rae2 Bd5 Ra2 Rg1 Rb2 h1N Rd2 Ng3 Ra2 Qf3 Rh2 Qg2 Qg5 Rh1 Qf4 Be7 d8R Rh6 Re8 Bd8 Qg5 Qff2 d7 Qfg1 Reh4 Bf3 Rh5 Nd4 R8e4 Nde6 Nd4 Nb3 R5h4 Nc1 Nb3 Nce2 Rh5 Nc3 Qf4 Bc7 d8Q Na4 Qd5 Bd8 Qdg5 Qb2 Rf2 Rh3 Rh2 Qbg2 Rh4 Q1f2 Rg4 R3h5 Rgh4 Qc2 Rh1 Qc1 R4h2 Qc5+
Q3K2n/b5B1/B6p/N2rQr1B/1k3ppN/1qnb4/1QbQ2P1/3r2Nn w - - 0 1 legal: proof: b4 b5 c4 a5 a4 e5 axb5 d5 f4 exf4 cxd5 a4 h3 Bxh3 b6 Bd7 Rh3 Bxh3 Ra3 Bc8 Rc3 a3 b5 Ke7 Re3+ Kd7 Re8 Kxe8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 g5 e4 f5 d4+ Kb4 b7 c5 b6 h6 d6 f3 d5 c4 d7 f4 Ke6 g4 Kf7 c3 e5 c2 d6 a2 e6 a1R e7 f2 e8B R8a5 Na3 Nc6 b8Q Nce7 b7 Nf6 Nc4 Rd5 Qc7 Ng6 Ne5 Ne4 Ba6 f1B Bb2 c1N Qd2+ Nc3 Nef3 Nd3 Nh4 Nf2 b8Q+ Bb5 Qcb7 Qb6 d8N Bd3 d7 Rd1 Qe5 Nh1 Qa8 Qe3 Nb7 Bc5 d8Q Bcf5 Qdf6 Ba7 Na5 Rg8 Qg7 Nh8+ Ke7 Bc2 Bh5 Bfd3 Qf6 Rg5 Ke8 Rf5 Qg7 Ka4 Qgb7 Ne4 Bd4 Nc3 Qb2 Qg3 Qe7 Qe3 Bg7 Qb6 Qee1 Qb3 Qe5 Kb4
2k2q1B/qpp5/B4r1q/pRpR4/P1Rr3Q/2q2Bb1/n1qQ2K1/1Q1B4 w - - 0 1 legal: proof: c4 e5 b4 a5 f4 exf4 c5 d6 Ba3 dxc5 Bc1 Be6 Nh3 Bc4 Ng1 Ba6 b5 Qd5 Ba3 Qd3 Bc1 Qd8 bxa6 g5 a7 g4 axb8Q h6 Nf3 h5 Na3 gxf3 g4 Bd6 g5 Rh7 Nc2 Bf8 Ne3 Rh8 Ng4 hxg4 Kf2 Kd7 e4 f5 h4 Ne7 a4 Rg8 d4 Rg6 h5 Qc8 e5 Raa6 d5 Raf6 d6 Nd5 h6 Nc3 h7 Na2 h8Q g3+ Kg1 g2 e6+ Kd8 d7 f2+ Kh2 f3 Ba6 f1Q Bb2 f2 Rc1 f4 Qh4 f3 Rc4 Qe1 Qb1 Rf4 Bh8 Rgf6 g6 f1Q g7 f2 g8B Bd6 Bf7 Qe3 Bh5 Qc3 Bf3 Qfc1 Kh3 g1Q Rh2 Qgd1 Kg2 Ke7 d8R Qdc2 Rh3 Be5 Rd5 Rd4 Rh1 Ke8 e7 Bg3 Re1 Qd8 Qc8 Qh6 Qd7+ Kf7 Rg1 Qa8 e8B+ Kf8 Qd8 Qa7 Bc6+ Kf7 Bd1 Ke6 Rh1 Rg6 Qdg5 Rf6 Qd2 Ke7 Rf5 Kd8 Bcf3 Kd7 Rd5+ Kc8 Re1 Qg5 Re6 Qh6 Rb6 Nb4 Kh3 Na2 Rb5 f1Q+ Qg2 Qfd3 Qd2 Qf5+ Kg2 Qff4 Bh5 Qd6 Bhf3 Qdf8
1Q1rK1b1/4b2n/3N1BQ1/2r2B2/PbbNbr1r/2k1B1N1/1q3rq1/n2B1Q2 w - - 0 1 legal: proof: g4 a5 a4 d5 c4 g5 cxd5 e5 f4 gxf4 h4 h5 b4 axb4 g5 e4 Rh3 Nh6 Rf3 Ng8 Raa3 Be6 Rg3 Bc8 Rg4 hxg4 Rf3 exf3 Kf2 Ke7 e4 Kd6 d4 c5 h5 f5 h6 b5 h7 c4 g6 g3+ Ke1 f2+ Kd2 g2 g7 b3 Kc3 f3 Kb4 b2 Ne2 g1B Qd3 c3 Qd1 f4 Bg2 f1B Na3 b1B Nc2 f2 Qe1 f3 Be3 Nf6 g8Q Be6 Bh3 Ra7 Qc1 Nc6+ Kb3 b4 Kc4 b3 Kb5 b2 Qf7 Qa8 Qe1 Be7 Bf5 Nb4 Qg6 Bg8 Qc1 Rd7 e5+ Kc7 e6 Kd6 Kb6 Bh2 Ng3 Bc4 Qe1 f1R Qe2 Rf2 Qf1 Bf8 e7 Bg1 e8B Be7 Na1 c2 Nb3 c1R Bf7 Be4 B7e6 b1R Bg4 Nc2 Bef5 Na1 Bh5 Be6 Bhg4 Rf8 h8B Nh7 Bf6 Bg8 Bh5 Rh2 Bhg4 f2 Bd1 Qb8+ Ka5 Kc7 d6+ Kb7 d5 Rb2 Kb4 Ka6+ Kc5 Rh4 Nd4 Ka5 Kc6 Kb4 Qg7 Kc3 Qg6 Ra7 d7 Rf7 d8Q Rd7 Qc8 Re2 Qf8 Qb2 Qb8 Rec2 Qe2 f1Q Qf2 Qg2 Qf1 Rd8 Kc7 Bf2 d6 Be1 d7 Rdf8 d8N Rf2 Nb7 Rd8 Nd6 Rd7+ Kc8 Rcc2 Bfg5 Rff4 Bf6 Rcf2 Qh5 Rg7 Qh6 Rg5 Qg6 Bd2 Be6 Ra5 Bf5 Rc5+ Qc7 Kb4 Qc6 Rb7 Qc7 Bc3 Kd7 Ra7 Ke8 Rb7 Qc8 Rd7 Nc2+ Kb3 Qd8 Bb4 Nd4+ Kc3 Qb8 Rd8+
n3b2R/nrb5/R1Q1RRn1/r1B5/3b3q/1rqB2b1/kbP1QnB1/5QK1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 f5 Bh6 Nh3 Bf8 Nf4 h6 Nd2 gxf4 Nf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 Kf2 a5 b4 d5 h4 Kd7 h5 Kd6 b6 e5 f6 d3 b5 Kc5 f7 Kb4 b7 e3+ Kg1 e2 b6 e1B g6 d4 h6 g3 g7 f3 h7 a4 Be3 g2 Bf4 f2+ Kh2 g1B+ Kg2 e4 Ra2 a3 Qe2 d2 Qd1 d3 Be3 Bd6 f8Q Ne7 g8B Nd7 b8Q Ng6 b7 Nb6 Qa1 d1N Qf4 d2 Rh3 Bd7 Qg4 Qh4 Bd5 Nc3 Bd3 f1R Qg5 d1N Qc8 Rf3 b8R Ra5 Qc7 Nb5 Bf2 e3 Be6 e2 Qc8 Be8 Bg4 Na7 Qd7 Bc7 Qh5 Rf7 Rd8 Na8 Bf3 Rhf8 Be3 Beg3 h8R e1Q Qc6 Nf2 Rd6 Qc3 Qf1 Rd7 Ra1 a2 Rf6 Ka3 Bc5+ Kb2 Re1 a1B Ree6 Ka2 Bfe4 Bb2 Qhe2 Rff7 Rh1 Rd4 Bf3 Rb4 Rh3 Qf4 R3h6 Rb3 Bd5 Qh4 Bf3 Nh3 Kh1 Bd4 Bg2 Nf2+ Kg1 Rg7 Qce4 Nf4 Ra6 Ng6 Qc6 Bd8 Re6 Rgb7 Rf6 Bdc7 Re6 Nf8 Rhf6 Ng6
1bbnQNkr/2r3N1/1n1B1n2/1n4q1/BQ1B4/1n2N1p1/6PN/q3QqKn w - - 0 1 legal: proof: b4 e5 h4 g5 f4 gxf4 d4 h5 Rh3 c5 Rg3 cxd4 Rg4 hxg4 a4 b5 Ra3 e4 Rf3 exf3 axb5 Rh5 Kd2 Rh6 Ke1 Rh8 Kf2 f5 e4 Kf7 c4 d5 b6 a5 c5 a4 b7 d3 e5 a3 h5 a2 b5 a1N c6 d4 c7 g3+ Ke1 f2+ Kd2 f3 b6 f4 h6 Qg5 h7 Nf6 Nc3 Nc6 b8Q Ra7 b7 Nd8 Ba3 Bd6 Qe1 Nb3+ Kd1 d2 e6+ Kg7 Bb5 f1Q e7 f2 Ba4 f3 Nd5 Qa6 e8Q f1Q Ne3 f2 Nf3 Bf4 Bd6 Qaa5 Kc2 d1N Nh2 Qae5 Nc4 Nc3 Ne3 Nb5 Kd1 Bf5 c8N d3 Ne7 d2 Ng8 Bc8 Nh6 Qg1 Ke2 d1N Ba3 f1N Bd6 Rg8 h8N Qa1 Ng6 Rh8 Nf8 Nf2 Nhf5+ Kg8 Ng7 Nfd2 Be5 Qh1 Bd4 Nc4 Qd6 Qg1 b8B Nb6 Qdb4 Nh1 Bd6 Be5 Qf2 Qgb1 Qfe1 Rc7 Kf1 Re7 B6c5 Bb8 Kg1 Rc7 Be7 Qbf5 Bd6 Qf1+
1n1N3b/qRbr1Q2/n4p1N/1bPr3n/kn2K3/4NN2/p1R1q2Q/3Rq2Q w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 Kd3 f1N h4 a5 b4 d5 e4 Kd7 c4 f6 e5 a4 c5 a3 b6 Kc6 b7 Kb5 h5 g3 e6 a2 g6 f3 e7 f2 e8R g2 h6 Bd7 h7 Qb6 g7 Qa7 Qb3 Ne7 g8Q Ng3 Qc2 f1Q+ Qe2 Na6 b8Q+ Ka4 b5 Bg7 b6 Qe1 b7 Nc6 Re5 Nh5 Qc7 Rd8 Rh2 Ncb8 Nf3 g1B Na3 Bb5+ Nc4 Rd7 Qf7 Rhd8 Qg2 Bh8 Rd1 Be3 Qh3 Bf4 Re7 Bg3 Qc6 Be5 Rhd2 Bc7 Qh2 Qe2+ Kc2 Qe1 Ne3 d3+ Kc3 Qe2 Rc2 d2 Kd4 Qe1 Qh1 Qe2 Qd6 Qe1 Qdh2 Qe2 Rb1 d1N Rbc1 Nf2 Rd1 Bg7 h8N Nd3 Qg8 Qe1 Nf7 Bh8 Nh6 Ndb4 Qf7 Qf1 Kc3 d4+ Kd2 d3 Kc3 Nd5+ Kd4 Ndb4+ Ke4 Rd5 Rd7 d2 Re7 Qe1 Rd7 Qe2 Re7 Nd7 b8N Qe1 Nc6 Ndb8 Rd7 Qe2 Re7 R8d7 Nd8 Qe1 Re6 Qe2 Rb6 Qe1 Rb7 Qe2 Rdc1 d1Q Ra1 Qg1 Rd1 Qge1
1B5r/3K2pb/rBBN2r1/1P3Q2/k2bQB2/r2p2N1/2qb2Q1/nN1b1bn1 w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 hxg4 h4 cxd4 b4 e5 Ra3 e4 Rd3 f6 Rhh3 f5 Rhf3 Ke7 Rf4 exd3 e4 Kf7 e5 Ke8 Re4 fxe4 Kd2 a5 c4 d5 f4 Kd7 f5 a4 h5 a3 c5 g3 f6 g2 h6 a2 f7 a1R h7 e3+ Ke1 e2 Kd2 Nc6 b6 R8a3 b7 Na5 b8B Kc6 e6 Kb5 c6 Nf6 e7 Ng4 e8Q Nh2 Nf3 g1R Ng5 Bf5 Bg2 Bc5 f8B Qc8 Qf1 Ka4 b5 Bb6 c7 e1B+ Kd1 d2 Ke2 Bc2 Bc5 d3+ Ke3 d1B Kf4 d2 Ke5 d4 Kd6 Nf3 Ne4 Be2 Ng3 d1B Bf4 Bd2 Qe4 Nb3 Qf5 Ba7 Bb6 Bc4 Qe1 Bf1 Qee4 R1a2 Bh1 Na1 Ke7 Rg2 Kd6 Ng1 Kc6 Qf8 c8N Qc5+ Kd7 Bcd3 Nd6 Qc2 Nh5 Rg6 Ng3 Rf8 h8Q Rc8 Qhh3 Rh8 Qeg2 Be4 Qhg4 d3 Bd8 Bd4 Bb6 Bd5 Qge4 Bc4 Qge2 Bg8 Bf3 Bh7 Qg2 Nh3 Qe3 Ng1 Bc6 Kb3 Qee4 Ra6 Qfe6+ Ka4 Q6f5 Ra3
2nn2NR/rN2b3/b1k1PRn1/2b1n3/1QN1Kb1p/2QR1Q1r/1q3p2/1r1Q4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 Bd6 Be3 Be7 Bg2 Qc7 Bf2 Bb7 Be4 Bd6 Bg6 Qd8 Bh4 gxh4 g5 Ba3 Be4 Bd6 g6 Bc8 g7 Bf8 Bg6 hxg6 Kf2 f5 Kf3 a5 b4 d5 e4 Kd7 c4 g5 c5 a4 h6 g4+ Kf2 d3 h7 d4 e5 g3+ Kf3 a3 b6 g2 b5 d2 b7 a2 b6 d3 e6+ Kc6 Na3 Ne7 g8Q Ra7 Nh3 g1B Qb1 d1R Ng5 d2 Qd3 Qd4 Qc3 Rb1 Qa5 d1N Qc3 Nb2 Qc1 Ng6 Qg7 Na4 Rh3 Be7 Ne4 Rg8 h8R Qb2 Nf6 Rd8 Qe3 Rd3 Nc4 Ra3 Qc3 Be3 Qf7 Bd2 Ke2 f3+ Kd3 f4 Ke4 f2 Ng8 f1N Rd3 f3 Qf5 Nh2 Qd5+ Kb5 c6+ Bc5 c7 Bf4 Qh5 Nc6 b8Q Nd8 b7 Kc6 Qa8 Ng4 b8Q+ Bb7 c8N f2 N8d6 N4e5 Qd1 Nb6 Rf3 Nc8 Rd3 Rc1 Rb1 a1B Rf3 Qd2 Rb3 Qb2 Rd3 Rb1 Rf3 Bh2 Rf6 Bf4 Qcc1 Qa2 Rd3 Bc3 Qe3 Qb2 Qed2 Rb3 Q2c1 B3b4 Qc3 Raa1 Qa3 Ba6 Nb7 Be7 Qa8 Bbc5 Qab4 Rba3 Qh5 Rh1 Qg4 Rab1 Qd1 Ra2 Qg1 Rh3 Qd1 Bb5 Qaa3 Raa1 Qab3 Ra7 Qf3 Ba6 Q3a4+ Bb5 Qad1 Ba6
b1r2KQN/2Q2N1b/2q2rp1/4r3/2P2k1N/R4qn1/2p1RQR1/b2rnQb1 w - - 0 1 illegal: No possible last move, all moves rejected
6n1/b1K1RqQ1/2PQ4/2b1nRQp/4RBn1/2Bq2rB/p5bb/1k1nrR2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 fxe4 h5 g6 h6 Bb7 Nh3 Ba6 Ng1 Bc8 g4 Bg7 g5 Na6 Ne2 Nb8 Nf4 Bf8 Nh5 Ba6 Nd2 Bc8 Nf3 Qc7 Ne5 gxh5 g6 Qb6 g7 Qd8 Ng6 hxg6 Ke2 Kf7 c4 Ke6 b4 Ke5 c5 a5 c6 d5 b6 e3 Kf3 a4 b7 e2 h7 e1B b5 g5 b6 a3 Qc2 a2 Be2 g4+ Kg3 d3 Bh6 Ke4 Rh4 e5 Qb2 d2 Bf1 d1N Qc1 d4 Qa3 d3 Be2 d2 Qc5 Nd7 b8Q Ra3+ Qc3 Bc5 b7 Ne3 Qd6 d1N b8R Qf6 Ra8 Qf7 Bf1 Ba6 Bh3 Bf1 Rb8 Bg2 Rb7 Ba7 Qcc5 Bb4 f4 Rd3 Qa5 Bbc5 f5 Ra3 f6 Rc3 Qe6 Kd3 Qd6+ Kc2 Bf4 e4 Qb5 Ne5 Re7 Nf2 Rf1 Nfd1 Qa5 Kb1 Qad8 Rc2 Q8d7 Re2 Qf5 Re1 Qg5 Qf8 f7 Qe8 f8R Qf7 Kh2 g3+ Kg1 Qc4 Rf5 Qd3 Rg4 Bf3 Rh4 g2 Kh2 g1B+ Kg3 Bg2 Rg4 Nh6 Rh4 Rg8 h8B N3g4+ Rf3 e3 Rf1 Rb8 g8Q Rb3 Q8g7 e2+ Be3 Nf6 Re4 Nfg4 Kf4 Ng8 Q7h6 Nc4 Bc3 Nce5 Qhg7 Ra3 Rff7 Rb3 Kf5 Ra3 Ke6 Bh2 Bf4 Qd2 Bb4 Rg3 Bc3 Qd4 Bfd2 Qd3 Rh1 Rf1 Rf6 Rf2 Rf1 e1Q Rff4 Re2 Rf8 Ng6 Kd7 Qf2 Kc7 Re1 Be3 Qf6 Bf4 N6e5 Rff7 Qg6 Rf5 Qf7
1Nn2Q2/n3b1Kp/1b3B2/kBq5/rqr1r1pP/3B4/1q1N2Nr/q1N1Q1Q1 w - - 0 1 legal: proof: d4 d5 b4 c5 e4 a5 g4 axb4 g5 f5 a3 Be6 Qd2 cxd4 Qd1 d3 Nc3 d4 Nb1 Bd5 exd5 Ra7 Qf3 Ra5 Qd1 Ra8 h4 g6 f4 Nf6 a4 Qb6 Rh3 Qd8 Rg3 Ng8 Rg4 Qb6 Ra3 Qd8 Rc3 Qd7 Rc6 Qd8 Re6 Nd7 Re5 fxg4 f5 Nb8 f6 Qb6 Rf5 gxf5 Qd2 Qd6 Qd1 Qd8 Kf2 Kd7 Kg3 Kc7 Kf4 Kb6 Ke5 f4 c4 f3 c5+ Ka5 d6 b5 f7 b3 c6 d2 c7 d3 c8B b4 g6 f2 g7 b2 d7 b3 Kf5 e5 Nc3 b1Q Bb7 e4 Nd5 e3 Nf4 e2 Bc8 e1B Bb2 Ne7+ Kf6 Nbc6 g8N Qb6 d8N Qc5 Ba6 Nc8 Nge2 Be7+ Kg7 N6a7 Nf6 Re8 f8Q Qa2 Qc1 d1Q Ng2 d2 Bb5 Qaa3 Ba1 b2 Ne4 b1Q Bf6 Qab4 Bd3 Q1b2 Nc6+ Kb6 Nb8 Ka5 Qc3 Qda1 Nc1 d1R Qe5 Bc3 Nd2 Bd4 Qe1 Be3 Bfe2 f1R Bb5 Rf4 Bed3 Rc4 Qg1 Bd8 Qe7 Bf2 Qee1 Ree4 Bd4 Kb6 Bf6 Be7 a5+ Kb7 a6+ Kb6 Qe2 Rf1 Qe1 Ka5 Qh2 Rh1 Qhg1 Nc6 a7 Rh2 Bf1 Qf5 Be2 Bb6 Bd3 Qfc5 Na6 Rb8 a8Q Rb7 Qb8 N6a7 Qf4 Rd7 Nb8 Rdd4 Qff1 Q4c3 Qf3 Ra4 Qf4 Rdc4 Qd6 Q3d4 Qd8 Qbb4 Qf8 Qdb2
1N1K3b/qNb1np2/1q2Q1Nq/b3QP2/r4r2/p7/B1B1Nq2/nQ1bkB2 w - - 0 1 illegal: No possible last move, all moves rejected
N1b3bq/r5N1/3n2Q1/bN2pN2/Q3R1KP/3QRb2/1np1nk1p/rq2R3 w - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 Qa4 fxe4 Qb3 d5 cxd5 g5 Qd1 g4 d3 h6 Bf4 h5 h3 Nd7 Bh2 Nb8 Be2 g3 Bf3 gxh2 g4 Ra6 g5 Ra8 Bg4 hxg4 Ke2 Kd7 a4 Kd6 f4 Kc5 d6 Kd4 g6 c5 g7 b5 f5 e5 f6 c4 a5 c3 f7 b3 h4 b4 a6 e3 a7 b2 d7 g3 Kf3 e2 Na3 e1Q Ra2 b1B Rf2 b3 Rf1 b2 Qb3 g2 Kg4 Ke3 d4 Be4 d5 b1B d6 Ba2 Nb5 Qb1 Ne2 g1N Ng3 Ne2 Qa4 c2 Rf4 Nc6 Re1 Nge7 g8Q Nb4 Qg6 Beb7 Rd4 Nf5 Re4+ Kf2 Re3 Be7 f8N Nd3 Ne6 Nb2 Ng7 Bg8 Re4 Qf8 d8Q Rh7 d7 Bb4 Re3 Nd6 N3f5 Ba5 Re4 Rb8 a8N Bc6 Qde8 Rb6 d8R Ra6 Qef7 Qe8 Qfc4 Bcd5 Qd3 Qf8 Nh5 Rha7 Rd7 Qh6 Nhg7 Qh7 Rc7 Qh8 Rc3 Bb6 Qb3 Ra1 Qa4 Bc6 Rcc4 Ba5 Re3 Bg2 Rce4 Bf3+
n2nb1R1/4B2Q/1B2R3/1K2r2q/1Qp1Rr1p/QBp1B1P1/1b2k2p/1rnq4 w - - 0 1 illegal: No possible last move
2n3b1/pkq4n/1p1R2p1/1rR4r/K5P1/RQnb1pN1/3Q4/nNN1rRQ1 w - - 0 1 legal: proof: h4 e5 c4 b6 a4 g6 b4 Nf6 f4 exf4 h5 Bg7 h6 Ng8 hxg7 d5 e3 Bh3 c5 Bc8 Bc4 dxc4 b5 Ba6 Ba3 Bc8 a5 bxa5 b6 a4 b7 Qd5 Bb4 Qg5 Ba5 Qd8 Bb6 cxb6 g4 Kd7 d4 Kc7 Kd2 h5 Kc2 f5 d5 c3 c6 f3 e4 h4 e5 h3 e6 a3 Kb3 a2 e7 f2 e8R f1B Re3 c2 Ne2 c1N+ Kb4 h2 Qd2 f4 Rc3 f3 Ka4 Ne7 g8Q Be6 Rc5 Nd7 d6+ Kb8 Qf7 Nf6 d7 Qc7 d8R+ Nc8 Rd6 Rh5 Ng3 Ba6 Rf1 h1R Qg8 Bd3 Qf7 Bef5 Qb3 Be6 Ne2 Bg8 Ng3 Qd8 Ne2 Kc7 b8N Rg1 Nd7 Nh7 Ng3 Ne2 Ne5 Kb8 c7+ Kb7 Rf2 Re1 Rf1 Ba6 Nd3 Nc3+ Kb4 Qd7 Nc1 Bd3 Ka3 Ne7 Kb4 Rf8 Ka3 Rff5 Kb4 Ka6 c8Q+ Qb7 Qe8 Nc8 Qee3 Qc7 Qg1 Nd5+ Ka4 Kb7 Nc3 Rfg5 Rb1 a1N Rb2 Ndf6 Ra2 Ne4 Nb1 Re5 Ra3 Ref5 Rc4 Rb5 Rc5 Nc3+
2n4B/1qr1BR2/p2b4/2p4R/qq1pk3/2P3QK/B3qp1n/1rQR1QRq w - - 0 1 legal: proof: d4 e5 a4 exd4 e4 b5 g4 bxa4 Ne2 g5 Nf4 Ba6 f3 Bc4 Nd2 Bd5 e5 Be4 fxe4 h6 Nc4 gxf4 g5 h5 Ne3 Qc8 Ng4 hxg4 Kd2 Qd8 Ke2 Nf6 Ke1 Ng8 Kf2 Ke7 Kg2 Ke6 h4 d5 b4 c5 h5 f5 h6 a3 h7 f3+ Kg3 f2 g6 f4+ Kh2 g3+ Kh3 a2 b5 f3 g7 d3 c3 a6 b6 d4 b7 g2 Kh2 g1Q+ Kh3 d2 Bc4+ Qd5 Qc2 d1Q Bg5 Ra7 Be7 Nc6 b8Q Rc7 Qc1 Nh6 g8R f1Q+ Rg2 Rg8 h8B f2 Rb1 a1Q Ba2 Qfe1 Rhh2 Qh1 Rg1 Q1b3 Qb5 Rg2 Qf1 Qab2 Ra1 Qee2 Rb1 Kf7 e6+ Kg6 e5 Kf5 Bef6 Rgg7 e7 Qdc4 e8R Rc8 e6 Ng8 e7 Na7 Kh4 Qba4 Qd2 Rb8 Rd1 Nc8 Qc1 Nh6 Rd8 Rh7 e8Q Bd6 Qee3 Rc7 Qg3 Ng4 Rf8 Ke4 Rf7 Qb1 Rh3 Nh2 Be7 Rb3 Kg5 Qcb5 Rh5 Qb7 Kh4 Qbb2 Kh3 Qba3 Rff5 Q3b4 Rf7 Rb1
nK2kNn1/2P1bq2/2Nb3R/2nR1R1r/RR3N2/1p2bB1r/3R4/1n2q1nb w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 f6 exf6 axb4 g4 h6 f5 Ra5 Bf4 Ra8 Qe2 Rh7 Qg2 gxf4 g5 Rh8 g6 Ra7 Qg4 Ra8 Qg5 hxg5 Ke2 b5 Kf3 d5 h4 e5 a4 d3 c4 d2 c5 d1Q+ Ne2 d4 Ke4 g4 g7 b3 a5 b2 c6 g3 h5 d3 c7 f3 a6 d2 a7 b4 h6 b3 h7 f2 Nc1 g2 Nc3 g1B Rh6 b1N N1e2 Bd6 Kd5 e4 Bg2 f1N Ra5 e3 Na2 Qe7 Nf4 e2 Nb4 e1B Nc6 Nh2 Bf3 Be3 Rc5 Bb7 f7+ Kd7 f8R Bh4 f6 Na6 f7 Qe1 Rb5 d1N Rb4 Nb2 Rh5 Rb8 a8R Nc5 Raa4 Nc4 Rf5 Rd8 Re8 Qf8 Ree5 Qe7 f8N+ Ke8 Rg5 Ra8 Ref5 Ra5 Rg2 Qd7 Rf2 Bhe7 Rd2 Nh6 g8R Rb5 Rg7 Ng8 Rgg5 Ra5 Bd1 Nf3 Rh5 Ng1 Bf3 Bc8 Na7 Qe6+ Kc6 Qf7 Rfd5 Nb6 Rhe5 Bg4 Rf5 Ne4 Kb7 Nc5+ Kb8 Na8 Be2 Bf3 Nc6 Bh1 Bf3 Ne6 R5d3 Re5 Rdd4 Nc5 Rd5 Nh6 Rf6 Rh5 Rff5 Rg8 h8R Rg3 Rh7 Ng8 Rh6 Rgh3
1K1q1B2/R3q1p1/1pB2kPn/pbq5/3q2Rq/6RB/R2Qn1R1/br4Rr w - - 0 1 legal: proof: b4 d5 a4 e5 f4 exf4 g4 h5 c4 b6 cxd5 Bd7 a5 Be6 b5 Bc8 g5 Ke7 Nh3 Rh6 Nf2 Kd7 Ng4 hxg4 Qa4 Rh7 a6 Ke8 Qa5 Rh8 Nc3 bxa5 b6 Rh6 b7 Rh3 Na4 Rh8 Nb6 axb6 Kf2 Ke7 h4 f5 d4 c5 e4 g3+ Kf3 c4 d6+ Kf7 a7 g2 d5 g1Q e5 c3 e6+ Kg6 h5+ Kh7 g6+ Kh6 e7 Kg5 e8R c2 h6 Bd7 h7 Be7 Ba3 c1Q Bh3 Kf6 Ra2 Ba4 d7 Qce1 d6 Qd4 Rg1 Nc6 b8R Bb5 Rb7 Rc8 a8B Nh6 Ra7 Qh4 Bc5 Nb8 Ba3 Rc1 Bc6 Rb1 Bb4 Na6 Bc5 Nb4 Rag2 Nd3 Ba3 Qa8 d8Q Nc1 d7 Ne2 Rf8+ Ke6 Rf7 Bf6 Bf8 Qc5 Rg3 Ba1 Qg5 Qb7 d8R Qbe7 Rd2 Qd8 Ra2 Qce7 Kf2 f3 Ke3 f2 Kf3 Ke5 Qd2 f4 Rf5+ Ke6 Rfg5+ Kf6 R5g4 Qc5 Ke4 f1Q R3g2 f3 Rg3 f2 R1g2 Rg8 h8R Qd1 Rg1 f1Q R1g2 Qc7 Rh7 Q5e7+ Kd5 Rh8 Rg1 Qfe1 R3g2 Qe3 R4g3 Qc8 Kd6 Qcg4 Kc7 Qc5 Kb8 Qgd4 Qc1 Qeb4 Qd2 Qe7 Rg4 Qbc5 R4g3 Nf5 Rh5 Nh6 Rhg5 Qdd8+ Bc8 Qda4 R5g4 Qad4 Rc2 Nf5 Rf4 Qg5 Ra2 Rh1 Rh4 Nh6 Re4 Q8d5 Bh3 Qh4 Reg4 Qdd8#
3QK3/1PbN2qk/Npr3nr/2Bb2r1/2b5/N3Q2Q/5q2/rQr3RN w - - 0 1 legal: proof: b4 d5 h4 f5 e4 g5 exf5 gxh4 c4 b6 cxd5 Nc6 b5 Na5 a4 Nb7 a5 a6 Bd3 axb5 a6 b4 axb7 Rxa1 Qc2 b3 Qd1 Ra8 Bb5+ Kf7 Be8+ Kxe8 Ke2 Kf7 Kd3 Kg7 Kd4 c5+ Ke5 h5 d4 e6 f4 c4 g4 c3 f6+ Kh7 f7 h3 g5 c2 g6+ Kh6 d6 h2 d7 h4 g7 b2 f5+ Qg5 d8N h3 d5 Ra3 d6 Ra8 d7 Ra1 Be3 Ne7 Kd6 e5 g8Q e4 Na3 b1R f6 Rb5 Ne6 Rf5 Bd4 e3 d8Q e2 Nc5 e1Q Na6 Qf2 Qb1 Be6 Ne2 Rc5 Re1 c1R Rg1 h1B Ng3 h2 Qc8 Bg7 Qgd8 Rg8 f8N Bc4 Kd7 Bhd5 Ke8 Rc6 Bc5 h1R Qg4 Rh3 Nh1 Bh8 Qg2 Rg6 Nd7 Kh7 Qh2 Rh6 Qh3 Qgg3 Qb8 Qgg2 f7 Be5 Qe3 Bh2 Qbe5 Bg3 Qh5 Bc7 Qhh3 Qg5 f8Q Qe5 Qf6 Qeb2 Qa2 Rg5 Qb1+ Ng6 Qd8 Qg7
1b2B3/kr1Q1bK1/nbb1B2n/qB1QBN2/P1b5/pp4pQ/3Q4/1R4q1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 b5 d5 Ra2 e5 f4 exf4 Rb2 Ra6 Na3 b6 bxa6 d4 Rb4 axb4 c3 bxa3 cxd4 b5 d5 Ke7 Qb3 Kd7 Qd1 Ke8 Kf2 Kd7 d4 g5 e4 f5 h4 c5 d6 Kc6 h5 Kb6 h6 f3 Kg3 f2 a7 b4 a8B c4 e5 c3 e6 b3 h7 c2 d7 Bc5 e7 Na6 e8B Bb7 d5 Bc6 d6 Nh6 Bb5 f1B Nf3 Ka7 Qd5 Bc4 Nh4 Qa5 d8Q Bb6 Bf4 c1B d7 Rg8 h8Q Rg7 Qd2 Bf7 Be5 Bb2 Rb1 f4+ Kh2 g3+ Kh3 g2 Nf5 g4+ Kh4 Rh7 Kg5 g1Q Kf6 f3 Qc8 f2 d8Q f1B Q8d5 g3 Qcd7+ Nc7 Bb7 Bc4 Bc8 Bc1 Qg7 Bb2 Qg4 B2d4 Qh5 Be3 Qh3 Bf4 Qd8 Na6 Be6 Bh5 Qc8 Rb7 Qcd7 Bg6 Kg7 Bf7 Bf6 Bfc7 Be5 Bb8
Q4N1R/1n1qk3/R1qr1qrb/8/Q1b2Q1R/2qP1r2/1qRn2bb/Q1B3K1 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 g3 h6 Bg2 h5 Bf3 Qg5 Nc3 Qd8 Ne4 Qd6 Nf2 gxf3 g4 Qd7 g5 Qd8 Ng4 hxg4 Kf1 f5 e4 a5 b4 c5 h4 g3 d3 g2+ Kf2 c3 h5 a4 h6 c4 e5 a3 h7 a2 g6 c2 b6 c3 e6 Nd7 e7 Ba6 g7 Ngf6 g8Q Ne4+ Ke1 f2+ Ke2 f1B+ Kf3 Nd2+ Kf2 f3 b5 f4 b7 Nc5 b8Q Nb7 b6 Bc4 Rh5 Ra6 Qg5 Bh6 Qf5 Rg8 Bb2 c1Q h8R c2 Bd4 Qb2 Qd5 c1Q Qc7 Qd7 Nh3 Qcc2 Rc1 a1Q Be3 Qcc3 Ng5 Qaa4 Qa5 Qac6 Nh7 Kf7 e8R Rg6 Reg8 Ke7 Qda4 Rd6 Kg1 f2+ Kh2 f3 Rc2 Rg6 Qf4 g1B+ Kh1 Rd6 Ra8 Bh2 Nf8 Bg3 Rh4 Bh3 Qa1 Rg6 Q5a4 f1R+ Bg1 Rf2 Bh2 Bg2+ Kg1 Ra5 Ra6 Rd5 Qb8 Rdd6 Qa8 Re2 Rg4 Re3 Rh4 Be1 Bf4 f2+ Kh2 f1Q Bg5+ Qff6 Kg1 Nc5 b7 Bg3 b8Q Rf3 Be3 Nb7 Bf4 Nb1 Bc1 Nd2 Qc7 Rd5 Qf4 Rd4 Q4a3+ Rd6 Qa4 Bh2+
1kbr1B2/r2QN1n1/Qr1P3b/1rr1nb2/5qrR/1N6/1NQ2Qb1/2N2Kn1 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 g5 Bh3 gxf4 g5 e5 c4 dxc4 Bg4 hxg4 Ra3 e4 Rf3 exf3 axb5 Bf5 Na3 Be6 Nb1 Bc8 d4 Kd7 e4 f5 h4 c5 b6 a5 g6 c3 b7 Kc7 b5 f2+ Kf1 g3 h5 c2 h6 a4 h7 c4 e5 a3 d5 c3 e6 a2 e7 a1R e8Q g2+ Ke2 f1R g7 f3+ Ke3 f2 Ke2 f4 Qe1 f3+ Ke3 R8a4 Ne2 g1N Ba3 c1R Nd2 c2 Rh4 Nc6 b8N Rcb1 Nc1 Rg4 Ndb3 Qf6 Nd7 Nge7 g8N Ne5 Ndc5 Kb8 b6 Nf5+ Kd2 Qf7 b7 Ng7 Qd7 Qf4+ Qe3 Re1 N5d3 f1B Ne7 f2 Nb2 Bg2 Bb4 Rg8 h8Q f1B Qh6 Ra7 Qa6 Bd3 Ba3 Bf5 Bb4 Qf3 Qf2 Ree4 Bc5 Rb4 Ke1 Rb6 Bb4 Qf4 Ba3 Nh5 Bb4 Bh6 Bc5 Bge4 Kf1 Rf8 d6 Ng7 Bd4 Rd8 Be3 Qh2 Bg5 Qf4 Bf6 Ne6 Bg7 Bf3 Bf8 Ng7 Qd4 Rb5 Qf2 Bg2+ Ke1 Bg6 Nc4 B6e4 Na1 Bf5 Rh5 R1b4 Rh4 Ra5 Nd3 Bh1 Kf1 c1R+ Ne1 Rc2 Nd3 Rbb2 Nc1 Rd5 Qdc6 Rb3 Nb2 Rb6 Nab3 Rdb5 Qe4 Rcc5 Qc2 Bf3 Qa1 Ra3 Qa2 Ka7 b8Q+ Ka6 Qc7 Bg2+ Ke1 Raa5 Qc6 Ka7 Qd7+ Kb8 Qa4 Bgb7 Kf1 Ra7 Qa6 Bg2+
Rn1R1Rr1/pPQ1b1k1/q2Q4/4r3/1bb4b/2Q1bnBb/R7/KQ1b1q1N w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 e4 g6 g5 h6 Be2 h5 Bg4 hxg4 axb5 Qb6 Nd2 Qd8 Ndf3 Nc6 Nh4 fxe4 f5 Nb8 f6 Rh5 Nf5 gxf5 Nf3 Rh4 Ng1 Rh8 Kd2 Kf7 c4 e5 Kc2 d5 Kb1 e3 h4 e4 b4 f4 h5 g3 c5 e2 b6 e1B b5 d3 h6 g2 b7 d2 c6 e3 b6 e2 h7 d4 c7 f3 Qc2 d1B Ra5 f2 Ra2 f1Q Nh3 g1B Nf2 d3 Bf4 d2 Ka1 Qd3 Qb1 Nh6 Bg3 Rg8 h8Q Bh3 c8Q Be7 Qc7 Bb3 g6+ Kf8 f7 d1B Qhb2 B1b4 Qbc3 e1B Rh2 Qb5 Nh1 Nf5 Rhd2 Qa6 Rd4 Kg7 f8R Be3 Rdd8+ Nd4 Qd6 Nc6 b8Q Bc4 Qbc7 Rc8 b7 Nb8 Bf4 Bh4 Bh2 Kh6 Bg3 Nf3 g7+ Bhf6 Qcb6 Rc5 Qbc7 Re5 Qdd3 Rh8 g8R Bh4 Qdd6+ Bhe6 Rg5 Rg8 Rh5+ Kg7 Rh8 Nc6 Ra8 Bh3 Rfd8 Re8 Rf8 Nb8 Rf5 Rh8 Rff8 Rg8
bB1B2Bn/2n3QQ/Q1nNr3/2Rp2p1/qp2q3/5QrP/k4q1b/4rB1K w - - 0 1 legal: proof: b4 c5 d4 cxd4 e4 g5 f4 f5 exf5 a5 f6 axb4 a3 Qc7 f5 Qd8 g4 h6 a4 Ra6 Nc3 Qa5 Nce2 Qd8 Nf4 Ra8 Ra3 Qc7 Rg3 gxf4 g5 Qb6 g6 Qd8 Rg5 hxg5 Kf2 b5 Kg2 d5 c4 Kd7 c5 Kc6 g7 e5 h3 d3 a5 b3 a6 b2 f7 b1N f6 e4 a7 d2 Qe1 d1Q Bd2 e3 Qe2 f3+ Kh2 b4 Bc3 f2 Ba1 Qa4 Bd4 Qe7 Be5 Na3 Nf3 Nh6 g8B Nb5 Nd2 Nc7 Qf3 e2 Ne4 Kb5 c6 Bb7 Nd6+ Kc5 Rg1 e1R Kh1 Rh7 Bh2 Qe4 Bg3 Bg7 f8B Nf7 Be7 Nh8 f7 Be5 f8Q Rh6 Qg7 Re6 Bd8 Bf4 Bh4 Bh2 Bg3 Ne8 c7 Nc6 c8Q Nc7 Qcd7 Rc8 Qdf7 Ba8 Qh7 Kd4 Qfg7+ Kc5 Ba6 f1Q Be5 Qf2 Bf1 Kb6 Rg4 Ka5 Bg3 Qec2 Rc4 Qe4 Be7 Rf8 Bd8 Rf4 Rc1 Rg4 Be5 Rg3 Rc5+ Qb5 Bf4 Ka4 Be5 Qbd3 Bf4 Ka3 Be5 Ka2 Bf4 Bb7 a8Q+ Qa3 Qa6 Qa4 Ne8 Na8 Bb8 Nc7 Nd6 Ba8
bR1N1q2/R1K2n2/8/B1qB2n1/5nP1/Rq3bR1/2r2Br1/Bkb1r1Rq w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 e5 axb5 exf4 b6 d5 cxd5 a4 b5 a3 Qa4 Rxa4 Nc3 Ra7 Ne4 Ra8 Nd6+ Kd7 Ne8 Kxe8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 Kb3 d4 Kc2 g4 c5 b7 f5 b6 h5 d6 h3 d7 f3 d5 f2 d6 a2 Bc4 f1Q Bb2 h4 Ba3 h2 Re1 a1R Bd5 c4 Re2+ Kb1 Nf3 f4 Ke6 h3 e5 c3 Bc6 c2 Re1+ c1N Ng1 f3 Kd5 f2 e6 Na6 b8B Bb7 e7 Nc5 e8R Qc7 d8R Ne6 d7 Qb5+ Bc5 f1Q Ne2 Bh6 Re7 Qf8 Reg1 R8a2 Nf4 Rc2 Rg3 Ng5 Rhg1 Qb2 Bf2 h1B+ Rf3 h2 Ne6 Qc8 Kd6 Qb3 Rfg3 Bf3 Bd5 Bc6 b7 h1Q Bba7 Raa2 b8R Rh7 Bad4 Rab2 R1g2 Nd3 Bh8 Ra2 Ba1 Nf4 Ra8 Rf7 Ra3 Rf5 Re8 Re5 d8B Re1 Ba5 Rab2 Nd8 Qcf5 Be6 Qc5+ Kc7 Ra2 Rg1 Rab2 Bd4 Rg2 Rf7 Rbc2 Bd5 Bg7 Re6 Nh6 Bf2 Bb2 Re4 Bc1 Rb4 Bb2 Rb8 Bc1 Rh7 Nhf7 Kc8 Nh8 Ra7 Nhf7 Kc7 Ba8+
2q4b/3nRb2/N2R3N/2r3q1/8/r2RPqRr/1rBNKRrr/2k2Nr1 w - - 0 1 legal: proof: d4 a5 b4 b5 f4 e5 a4 exf4 axb5 c5 b6 cxd4 b5 Qf6 Qd2 Qe7 Qb4 Qd8 g4 axb4 Ba3 f5 Nh3 f3 Kd2 h6 Ke1 Nc6 Bc1 Nce7 Bg5 f4 Ng1 Nf5 gxf5 hxg5 c4 Kf7 h4 Kf6 h5 Ke5 e3 Ke4 b7 d5 b8N b3 b6 d3 f6 d4 b7 f2+ Kd1 f3 c5 b2 h6 d2 f7 g4 h7 g5 c6 g3 c7 g4 Rh6 g2 Rc6 g3 Na6 Bg7 f8N Nf6 b8R Nd7 Ra2 Qg5 Ne2 Kd3 Ng6 g1R Ra4 g2 Na3 b1R+ Rc1 Rb2 Nh4 Rh1 Ng6 g1R Nh4 Rh2 Rb6 Rgg2 Rd6 Bb7 c8R Bd5 Nc4 Bf7 Rd8 Rc8 Ra5 Rc5 Rg8 Be5 Rgg6 Ra8 Nf5 Bh8 Ra2 Ra7 Nb8 Ra3 Rca1 Rh3 Neg3+ Kc3 Bd3 Rgh2 Nc6 Rg2 Nb4 Rgh2 Nc2 f1R+ Ne1 f2 Rge6 Rb6 Nh1 Rh4 Rc6 Bf6 h8R Rd5 Rh5 Bh8 Nhg3 Rdb5 Rh7 Rg1 Re7 f1Q Rd6 Rgg2 Rb1 Qff4 Nc2 Rb7 Nb4 Qf3+ Be2 Qc6 Bd3 Rc5 Na6 Rh5 Rb6 Rh6 Rd5 Qc8 Rbd6 R6h4 Rhh6 Rbb5 Rhf6 R4h3 Nh6 Rb6 Rf3 Rb7 Ra1 Rb2 Rdf5 Kb3 Rc1 Ka2 Rc3 Ka1 Bc2 Ka2 Rf2 Ka1 Ke2 d1R Rf3 Rdg1 Kd2 d3 Nf1 Ka2 Kd1 d2 Rcd3 Ka1 Rg3 Ka2 Ke2 Ka1 Kf3 d1Q+ Ke4 Qe2 Ncd2 Ka2 Rb3 Qf3+ Kd3 Rb1 Rc3 Kb2 Rb3+ Kc1 Rc3 Qfc6 Ke2 Rb2 Rcd3 Qf3+
NkNn4/1r2b3/K1Rq1q2/1nQP3N/1r6/1N1rN3/qr1R1npq/2Q3N1 w - - 0 1 legal: proof: c4 a5 f4 e5 a4 exf4 b4 b5 axb5 d5 b6 dxc4 b5 Qe7 Ra2 Qg5 Ra1 Qd8 g4 h5 Bg2 f5 Bh3 f3 Ba3 f4 Bb4 Bf5 gxf5 axb4 Bg4 hxg4 d4 Kd7 Kd2 Kc8 h4 g5 e4 c5 d5 b3 Kc3 b2 f6 f2 e5 f1Q e6 g3 h5 g2 f7 f3 e7 f2 e8N g4 h6 g3 h7 Nf6 Ra5 Qd6 Qe1 Ng4 Nd2 b1R Ra6 Qe2 Qc1 f1Q Nf6 Ra7 Rh2 Rb2 Nb3 Nc6 b7+ Kb8 Nh5 Nd8 Rc6 Be7 f8Q Rg8 h8N Nf2 Nf7 Rg4 Ne5 Re4 Nh3 g1Q Ng4 Ra3 Rg2 Qh2 Ne3 Rd4 Ng1 Ra4 Qh6 Rb4 Qc2 Qa1 Qc1 Qf3 Qh7 Qff6 Qhc2 Ka7 b8N Qa2 Nd7 Ka8 Nb6+ Kb8 Na8 Rd1+ Nd4 Rd2 Qf1 Rd1 b6 Rdb1 Kd2 c3+ Ke2 c4 b7 Rd1 Nb3 Rd4 Qc1 Rd3 Q2d2 c2 Qc3 Qf5 Qd4 c3 Qc5 Qff6 Qc4 Ka7 b8N Kb7 Nd7 Ka7 Ndc5 Kb8 Na4 Rb7 Qc5 Rb4 Qd2 c1R N4b6 c2 Nc8 Rcb1 Qc1 Rb7 Nd4 R2b4 Nb3 Rb2 Ke1 Nd1 Rd2 g2 Ke2 Nc3+ Ke1 Nb5 Ke2 Qg6 Nd4 Ra3 Nb3 Qgf6 Kd3 Nd4 Qd1 c1N+ Kc3 Nd3 Qc1 R4b6 Kc4 Nf2 Kc3 Nb5+ Kb4 Rc2 Na1 Rd3 Nb3 Na3+ Ka5 Rb4 Ka6 Rb2 Qb6 Nb5+ Qa5 Na3 Qac5 Nb5+
NQ1q4/3r1b2/2ppkqp1/R5bP/4pn1R/3R1N2/R2Kpr2/1qRQ3R w - - 0 1 legal: proof: b4 h5 e4 f5 g4 hxg4 c4 fxe4 a4 b5 axb5 Nh6 b6 Na6 b5 Ng8 b7 Nb8 b6 Rh4 Ne2 Rh7 Ng1 Rh8 Bd3 Nc6 Bc2 Nb8 Ba4 Nc6 Bb5 Nd4 Bc6 Nb5 cxb5 Rh7 Ra4 Rh5 Ra1 Rh8 d4 Kf7 d5 Qe8 d6 Qd8 Bf4 dxc6 d7 Rh4 Be5 Rh8 Bd6 cxd6 b8R e5 f4 a5 h4 a4 b7 e3 h5 g6 f5 e2 f6 g3 b6 e4 Nd2 a3 Ngf3 a2 Nc4 g2 Rc1 g1Q+ Kd2 Ra4 Ra8 a1Q b8R Ke6 b7 Qf2 f7 Be7 f8R Ra7 Rf4 Nf6 Nb6 Nd5 Rg4 Rf8 Rgh4 Ra6 Ra7 Qb1 Na8 Ra1 Ra3 Nf4 Ra2 Bg5 Ra5 Qc5 Ra2 Qf5 Ra5 Qff6 Ra2 Qde7 d8R Rf7 Rh8 Qd8 Rf8 Rd7 Rf7 Qfe7 Rf5 Qef8 Rd5 Qff6 Raa5 Ra3 Rd3 Ra1 Nb6 Ra3 Rba8 Ra1 b8Q Ba6 Ra7 Bc4 Na8 Ra3 Rdd5 Re3 Rd3 Ba2 Ne5 Rf3 R7a6 Rf2 Nf3 Ke7 Ra7 Bf7 Ra2 Ke6 R7a6 Qfh8 R6a5 Qhf6
n1Br3N/1nNP2KB/1q4n1/1N4rQ/nNq5/b3BB1N/4br2/k1n2qq1 w - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 h4 g5 c4 dxc4 f4 gxf4 b4 e6 g5 e5 Ra3 e4 Rf3 exf3 Rh3 Ne7 Rg3 Ng8 Rg4 hxg4 Kf2 Ke7 e4 Ke6 d4 f5 b6 a5 e5 Kd5 g6 c5 b5 a4 b7 c3 g7 a3 e6 g3+ Ke1 g2 Kf2 a2 b6 a1N h5 c4 h6 c2 e7 c3 e8B Ne7 h7 Ng6 Qd3 Nb3 Qe2 Rg8 h8N Ba3 Bb2 c1N Nh3 g1Q+ Ke1 f2+ Kd1 f3 Kc2 f4 Ba1 Bg4 Bg2 f1Q Bd7 Na6 b8N Na5 b7 Qb6 Nc6 Nc7 b8N Ncb3 Kd3 c2 Na6 Nb7 Bc8 c1N+ Kc3 N3c5 Ncb4+ Kd6 d5 f2 Kd4 f3 Nc3 Na4+ Ke4 Bh5 Qb5 Qc4+ Kf5 f1R Kf6 f2 Bf3 Rd8 Kf7 Ke5 g8B Kd4 Kg7 Ra7 d6 Na8 Nc7 Ra5 Qe8 Rg5 d7 Bg4 Bh7 Bh5 Nba2 Kd3 N3b5 Kc2 Qf7 Kb1 Bd4 Bg4 Be3 Ka1 Nb4 Bh5 Bh1 Be2 Qf5 Re1 Bd5 f1Q Bf3 Rd1 Qg4 Rd6 Qh5 Rf6 Be4 Rf2 Bc6 Qfg2 Bf3 Q2f1
B2kr3/2bnr1q1/nBK2bB1/P1pB1R2/3Q3R/Rbn2B2/2rr1n2/5R1q w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 dxc4 b4 axb4 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Ra5 Nf2 Ra8 Ng4 hxg4 Kf2 f5 e4 c5 h4 b5 a4 g3+ Kf3 b3 d4 c3 e6 b4 h5 b2 d5 b1Q e5 g2 d6 g1N+ Kf2 c2 h6 f3 Ke3 b3 g6 b2 h7 f4+ Ke4 f2 Kd5 f3 g7 Na6 e7 Qc7 a5 Nh3 Ra2 Ra7 Be2 f1R Bg5 c1B Qd4 f2 Ra3 Rd1 Rf1 Bf4 Bf3 Rd2 Bh4 Bf5 Bg3 Kd7 e8B+ Kd8 d7 Bc2 e6 Be7 Bg6 Bf6 Bge4 Qe5+ Kc6 Bb3 Bd5 Qbe4 Bh4 b1N Bg5 Nh6 g8B Nc3 Bf7 Re8 h8R Rb7 Bg6 Nf7 Rh4 Bg3 Bf4 Qg5 Bb8 Bc7 Ba7 Qh6 Bb6 Qg7 Bfh5 Qh1 Bhf3 Nfg5 Bge4 Nh7 Bg6 Nf8 Bge4 Ke7 d8R Ra7 Rd6 Nd7 Bg6 Kd8 e7+ Kc8 Re6 Rb7 Re5 Rc2 Rc1 f1R Rf5 Rd1 Rca1 Rdd2 Rf1 Rf8 e8B Kd8 Bef7 Re8 Bg8 Nf2 Bge6 Nf8 Bc8 Ra7 Bb7 Nd7 Ba8 Rb7 Ba7 Rb4 Bb6 Rc4 Qd3 Rce4 Qd4 R4e7
k5qR/nrP2b2/1p6/rR1Q2KR/1N4Rp/2bN2n1/b2R2qq/n3N1rN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 g5 h5 cxd4 g4 Nh6 Bc4 Qc7 Bf7+ Kd8 Bg6 Qa5 Bf4 Qb6 Bg3 Ng8 Bh4 gxh4 g5 Qc7 Be8 Qa5 g6 Qb6 g7 Qc7 Bg6 hxg6 Nc3 Ke8 Nb1 Qd8 Ke2 d5 Kf3 Kd7 Kf4 Kc7 c4 e5+ Kg4 e4 f4 d3 a4 b3 a5 b2 h6 g5 c5 d4 a6 b6 a7 Kb7 h7 e3 Ne2 d2 Ra5 d3 Rb5 Ne7 g8R Bg7 Rh2 Nbc6 Na3 b1B Nc2 Ba2 Ng3 e2 Nh1 e1N Kh5 g4 f6 g3 f7 g2 f8R g1Q f5 Be5 f6 Bce6 f7 Nf5 Rg4 Bc3 Re8 Beb3 Re5 Qg8 f8N Ng3+ Kh6 Qf1 Rh5 Bc4 Qf3 d1Q Ng6 d2 Ne5 Qde2 Nd3 d1R Qg2 Be6 Qd5 Qh3 Rf2 Qh2 Rg2 Qe4 Rf2 Qeg2 Rd2 Qf7 Kg5 Rhb8 h8R Rc1 Nd4 Nc2 Nf3 Rg1 Nfe1 Na1 Nc2 Rd8 Nce1 Rab8 a8N Qg8+ Kh6 Ka7 Nc7 Rb7 Na6 Ra8 Nab4 Kb8 Rg6 Ra6 Rg4 Na7 c6 Ra5 c7+ Ka8 Nf3 Qb8 Kg5 Bf7 Nfe1 Qg8+
rnRrbB1B/bR2Rp2/p1P1K1n1/4b1B1/n1B1B1k1/2n5/5R2/qN2b1b1 w - - 0 1 illegal: Other
2brN2N/1B1PN3/1r3R2/7k/2Rr2p1/rNnb4/2npNqn1/bKRn1R2 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 c5 g4 h5 d4 hxg4 d5 d6 Qd4 Rh5 Bd2 Rh4 Bb4 cxd4 c5 Rh5 c6 Rh8 Bc5 dxc5 Kd2 g5 Kc2 a5 b4 f5 h4 Kf7 e4 Kg6 c7 c4 b6 a4 d6 a3 d7 a2 b7 c3 e5 d3+ Kc1 g3 e6 f3 e7 c2 e8R f4 b5 d2+ Kb2 c1N b6 g2 Nc3 g4 Re1 f2 Ne4 f3 Nd6 Ra4 Nf5 Nc6 b8N Nb4 b7 Bg7+ Nd4 Qf8 Re7 Nc2 Re8 Ne7 Ba6 f1B Nc6 f2 b8R Ne2 Bb7 Kh5 Rc1 Nf4 Ne2 Ned5 Re4 g1R Ne7 Nc3 Nb3 a1R Rc4 Ng2 Ra8 Be5 Ra6 R1a3 Rf6 Rb4 Nf5 Qc5 Nd6 Rd8 Ne8 Qe3 Nd4 Bd3 Ne2 Re1 Rg1 Rb6 Rf1 Nd1+ Kb1 Ba1 Rg1 f1N Rh1 Ng3 Rg1 Bg6 Rgf1 Kh6 h5 Qf2 Rd6 Kg5 h6 Ne4 h7 Kh5 h8N Bf5 Rf6 Bg6 Ng1 Re3 Ne2 Rd3 Ba8 Rd4 Bc6 Bb7 c8N Bh7 Ne7 Bc8 Nc7 Nd6 Bd5 Nb5 Ne8 Bd3 Bb7 Nbc3+
r2Nb2R/4Rp2/1K1q1N2/1QR1Nqb1/1b2nb2/R4PbN/q2p3k/2qnR3 w - - 0 1 legal: proof: c4 b5 g4 a5 h4 e5 d4 Be7 h5 Bf8 d5 Ra6 Bg2 Ra7 b4 axb4 Be4 Ra3 Bg6 hxg6 Bb2 d6 Bd4 exd4 c5 Rh3 h6 Rh5 gxh5 dxc5 Rh3 c4 Rh4 Bf5 Rh1 Bc8 Kd2 Ke7 a4 Kd6 e4 Ke5 a5 Kf4 h7 c5 a6 b3 a7 b2 a8N c3+ Kd3 c4+ Ke2 d3+ Ke1 g5 d6 b4 e5 b3 e6 g4 e7 g5 e8N g3 d7 g2 h6 g4 f3 Kg3 Nac7 c2 Kd2 c1Q+ Ke1 c3 Na3 b1Q Nh3 g1B Nf6 b2 Ra2 c2 Nfd5 Be3 Na8 Ne7 Nac7 Nf5 Kf1 Bg5 Ne6 Bb4 Nf6 Na6 Nc4 Nc5 Ra3 Ne4 Ne5 Qa2 Kg1 b1Q Qf1 Qf8 d8R Bd7 Re8 Qd6 Nd8 Ne3 Re7 Nd1 Qe2 Rf8 h8R Be8 h7 Rg8 Qe3 Bf4 Qc5 Rf8 Kf1 Bg5 Rg1+ Kh2 Qb5 g3 Rg8 Bf4 Rg5 Rg8 h8R Rf8 Rc3 g2+ Ke1 Rg8 Rf1 g1B Rgh5 d2+ Ke2 Bf2 Re1 B2g3 Rb3 Bc5 Ra3 Bce3 Nc4 Rf8 Rc5 Bg5 Ne5 Bef4 Qc4 Qb5 Qd3 Qbd7 Qd5 Qf5 Kd3 Qcb1 Kd4 c1B Rac3 Ba3 Rb3 Bb4 Ra3 Qab2+ Kc4 Rg8 Qc6 Q1a2+ Kb5 Qc1 Kb6 Qd3 Qb5 Qd6+ Ka7 Bc6 Kb6 Rf8 Nb7 Ra8 Nd8 Be8+
3Nb2b/1Krb2B1/NNB2Br1/kp1p4/4qP2/4q1qb/Bn2np1Q/1N3N2 w - - 0 1 legal: proof: d4 e5 f4 a5 b4 axb4 g4 h5 gxh5 c5 a3 cxd4 Bg2 e4 Bh3 Nf6 Bf1 Ng8 h4 f5 a4 Qf6 Ra3 Qd8 Rf3 Rh7 e3 Rh8 Rh2 Rh6 Re2 exf3 e4 Rh7 e5 Rh8 Re4 fxe4 Kd2 g5 c4 b5 a5 d5 h6 Kd7 e6+ Kc6 h7 b3 a6 Kb6 c5+ Ka5 e7 g4 e8N d3 Ke3 f2 Kd4 e3 a7 d2 c6 g3 c7 e2 h5 e1Q h6 g2 Bc4 b2 Nf3 g1Q Ne5 Nd7 Ng4 Ngf6 Bb3 Nb6 Ba2 Qg3 Nh2 Bd7 c8N Na4 Nb6 Qde7 Qh5 d1B Nf1 Rc8 a8B Bg7 Qh2 Bh5 Bc6 Rg8 Nc7 Bhe8 Na6 Bh8 Be3 Qa3 Ke5 Qd3 Kd6 Nh5 Bd4 Qde4 Bg7 Q1e3 Bf6 Rg5 Bg7 Rg6+ Bf6 Ra8 Kc7 Rc8+ Kb7 Bh3 Nc3 b1B Bg7 Bc2 Nb1 Nb2 Bf6 Bg7 h8N Bd3 Nf7 Bh8 h7 Be2 Nc5 Beg4 Nd8 Bgd7 Bg7 Qg5 Na6 Ng3 Bd4 Ne2 Bf6 Bg7 h8B Qgg3 Bd4 Be5 Bg7 Bf6 Bh6 Bg7 Bf6 Bh8 Bhg7 Rc7+
1R4r1/B1b5/r4QP1/Q2qb1bk/B1r3bn/1r4Bp/2RQb2Q/1Bb1K3 w - - 0 1 legal: proof: e4 c5 b4 f5 d4 cxd4 a3 fxe4 Qd2 a5 Qd1 Nc6 a4 b5 axb5 a4 Be2 Na5 Bc4 Ba6 Bf1 Bc8 bxa5 g5 h4 Ba6 h5 Bb7 Nd2 Bc6 Ndf3 Bb7 Nh4 Bc8 g4 h6 Ngf3 gxh4 g5 Qb6 g6 Qd8 Ng5 hxg5 c4 e5 f4 d5 f5 a3 a6 g4 a7 d3 f6 d4 c5 a2 b6 d2+ Kf2 g3+ Ke2 e3 f7+ Ke7 b7 Kf6 b8B Kg5 c6 h3 c7 d3+ Kf3 e2 h6 e1B h7 e4+ Ke3 g2 Qe2 d1R Qf2 g1B Rb1 a1B Bb2 d2 Ke2 e3 Qf3 Be7 f8Q Nh6 Q3f6+ Kh5 Qd6 Bh2 Be5 Rg8 h8Q Rc1 Qhf6 Nf5 Bg3 Nh4 Qc3 Bd7 c8B Bg5 Qff6 Bf2 Bg2 d1B+ Kf1 B7g4 Qcd2 Be1 Be4 Be5 Bd7 Rc4 Ba4 Bdf3 Qc7 Qd5 Rb4 Bf2 Bb1 Bfg1 Qa5 e2+ Ke1 B1e3 Rb2 B3f4 Rc2 Bc7 Qdd4 Bc1 Qdd2 Bc8 Rf1 Bfg4 Rf3 Ba6 Rb3 Be5 Bc7 Rab8 a8Q Rb6 Rbb2 Rb3 Bb8 Bb5 Ba7 Bc7 Kf2 e1R Qb8 Re6 Kf1 Be5 Ke1 Ra6 Qbd6 Bg1 Qh2 Bb6 Qdb4 Bbc7 Qbd2 Rcc6 Ra2 Bbe2 Rab2 Rbc3 Rb6 R6c4 Rb8 Rb3
2Qn2n1/rq2P2Q/3R2Q1/q1R5/qq2p3/Q1pBkbBr/K1p2R2/b6R w - - 0 1 legal: proof: c4 d5 a4 dxc4 b4 e5 g4 h5 gxh5 b5 axb5 a5 Qa4 axb4 Qc2 Qd7 Qd1 Qd8 e4 f6 d4 Bh3 d5 Bd7 Nd2 Bc8 Ne2 f5 Nd4 exd4 e5 Qh4 Ne4 fxe4 Bg2 Qf6 Bf1 Qd8 Kd2 Kf7 Kc2 g5 Kb2 c5 f4 d3 h4 b3 f5 d2 h6 g4 b6 g3 h7 g2 b7 g1Q d6 Qg2 h5 Ra3 e6+ Kf6 d7 Ke5 f6 Kf4 f7 Qa5 d8R Qc7 e7 Nc6 b8Q Ra7 h6 Qg5 Qh5 Bg4 Qc8 Qb7 Rd6 Nd8 Qg6 Bg7+ Kb1 b2 f8R+ Bf6 Ra5 Bd1 Ka2 b1Q+ Ka3 Q1b5 Ka2 Qb4 Qh3 Qf5 Qa3 Ba1 Bd3 Bg4 Bb2 d1Q Be5+ Ke3 Bg3 Qda4 Rf7 Kd2 Rb5 Qe5 Rff1 Bf3 Rf2+ Ke3 Rbb6 c3 Rbc6 c2 Rc7 Nf6 Rc8 Rf8 h8Q c4 h7 c3 Qhg7 Qea5 Rc5 Rh8 Q7f7 Q7b6 Qe6 Qb7 Qc8 Rg8 h8Q Rg7 Qh2 Ng8 Qh8 Rh7 Qhg7 Rh2 Q7h7 Rh3
R4r2/5N1q/2Q1n3/p4b2/1N1RNqP1/k1nnb2q/1nnQRrR1/1n2N1K1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 g3 h5 Qd3 h4 Kd2 f3 Bg2 h3 Kd1 hxg2 Bf4 gxf4 Kc1 f2 Qd1 Qc7 Kd2 Qd8 h4 Ke7 b4 Kd6 c4 f1Q e4 f5 g4 a5 b6 f3 b7 f4 b5 Kc5 b6 Kb4 h5 d5 h6 f2 e5 f3 c5 d3 Ke3 d2 e6 d4+ Kf4 d3 Kg3 Qf6 Kh2 Ne7 c6 Nd7 b8N Nf5 e7 Nc5 e8R Nd4 c7 Bf5 c8Q Nde6 h7 Bh6 b7 Rf8 h8N Be3 Qc2 d1N Qe2 d2 Nd7 Nd3 Na3 N1b2 Qc6 d1N Ra2 Nc3 Nc5 Nb1 Nf7 Qg6 Ne4 Qh7+ Nh6 Ra7 b8R+ Rb7 Rbd8 Rbf7 Ra8 Qc1 Re7 f1Q Nc2+ Kb3 Ra4 f2 Nf3 g1N Qd2 Ne2 Rg1 Nec3 Rd4 Ka2 Nb4+ Ka3 Rg2 Rf6 Ne1 Qh1+ Kg3 f1N+ Kf3 Qh5 Nf7 Qh3+ Rg3 Bg5 Ree8 Ne3 Re7 Nc2 Ree8 Q3h5 Kg2 Qh3+ Kg1 Be3+ Qf2 Bg6 Rg2 Rf3 Re7 Bf5 Ree8 Bd2 Qe2 Rf2 Re7 Bg5 Qd2 Be3 Qc5 Nd8 Ng3 Bg5 Qe3 Qg6 Qc6 Qgh7 Qf4 Bh6 Re2 Ne6 Ne4 Qce3 Qg5 Qeg3 Qc1 Be3 Qd2 Qf4
6R1/1q3q1Q/1QR2Q2/NnN1n2N/1k1prnbN/1b1P1n1r/5K1r/4rQ1n w - - 0 1 illegal: No possible last move, all moves rejected
q7/1pbNNknq/2nQr3/2QB3b/1Kb2PN1/3B4/3rnnBb/B1b1N3 w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 g5 h4 gxh4 b4 axb4 d6 e5 e4 f6 g4 Ra4 d5 Ra6 a4 Ra8 Rh3 Be7 Rd3 Bf8 Rd4 exd4 e5 f5 Ra3 Nc6 Re3 Nb8 Re4 fxe4 Kd2 h5 f4 c5 e6 d3 e7 h3 a5 e3+ Ke1 c4 g5 d2+ Ke2 h4 d7+ Kf7 a6 b3 d6 h2 a7 h1Q Nf3 b2 Na3 b1N Nh2 h3 Qe1 c3 Kd3 d1B Kc4 e2 Kb4 c2 Bg2 Nc3 Qg1 e1B Qc5 Rh6 Bb2 c1B Nc2 Bh5 Ng4 h2 Ba1 Bg3 Ne1 Qe8 d8Q Be6 d7 Bc4 Qdb6 Nf6 Qbd6 Ne2 d8N+ Kg8 g6 Nc6+ Ka4 Rc8 a8N Rb8 Ne6 Rd8 g7 Kf7 Nd4 Rd7 Nb6 Qa8+ Qa5 Rd8 Nf5 Ne8 Nd7 Re6 g8B+ Kg6 Qa7 Ng7 Bh7+ Kf7 Bd5 Qe4 Qa5 h1N Bg6+ Kg8 e8B Bh2 Qa7 Nf2 Ne7+ Kh8 Bh7 Qg6 Bf7 Qh6 Bd3 Qh7 Nf5 Be7 Bg2 Bf6 Ne7 Be5 Qb4 Bc7 Qd6 Rh6 Bfd5 Re6 Nf5 Kg8 Ne7+ Kf7 Qa5 Ncd4 Kb4 Nc6+ Kc5 Rc8 Bf5 Ncd4 Bb1 Bb5 Qc6 Bd8 Kb4 Ba6 Qcb6 Rc2 Qc7 Bc4 Qac5 Rd2 Q7d6 Bc7 Bd3 Nc6+
1Q1nn1b1/q4n2/RP3RQ1/1Kbrp1Q1/2R1N1b1/5n2/3Nr2b/1Rq1Qq1k w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 f5 h6 Bf4 gxf4 g5 h5 Bh3 Qc7 Bg4 hxg4 Kf1 Qb6 Ke1 Qd8 Kd2 Kf7 h4 a5 c4 d5 b4 e5 g6+ Kf6 g7 f3 b6 a4 b7 e3+ Kd3 e2 h5 Kg5 b5 Kf4 h6 Kg3 h7 Kg2 f6 e1N+ Kd2 f2 c5 f1Q f7 g3 b6 d3 Kc3 d2 Kb4 d4 Ra2 a3 Nh3 d3 Ng5 Nf6 g8Q Bg4 Qg7 Qd7 Nf3 Ra5 Rh5 Nc6+ Kc4 Nd8 b8Q Qa7 c6 Rd5 c7 Ne8 c8Q Bc5 Rg5 Kh1 f8R g2 Qcc7 g1B Qcc8 Bh2 Qg6 Be6 Rc2 a2 Kb5 a1Q Rc4 Bg8 Nc3 Qc1 Qe2 d1B Qcf5 d2 Ne4 Qaa3 Rf6 Qa7 Qf2 Be2 Qh4 d1N Nfd2 Nf3 Qe1 Ne3 Rg2 Ng4 Qfg5 Nh6 Rg3 Ng1 Ra3 Bg4 Ra6 Nf3 Nb3 Bf7 Nbd2 Rf8 h8R Bg8 Rh7 Nhf7 Rh3 Bh7 Rg3 Rh8 Rg2 Bg8 Re2 Rh6 Re3 Rh3 Rb3 Rg3 Rb2 Rg2 Rb1 Re2
1n1n3K/R1pN3r/R1bQqQ2/rR2n1q1/3N4/R1NbP1k1/2N4b/b1qq4 w - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 b5 axb5 g5 b3 h5 Qc2 e6 Kd1 e5 f4 gxf4 g5 Bb4 Bb2 Ba3 Kc1 f3 Bh3 f2 Bg4 hxg4 Qd1 Be7 Bd4 Bb4 Be3 Bf8 Bf4 exf4 Kc2 Kd7 Kc3 Ke6 h4 Ke5 d4+ Kf5 h5 f1B e3 a5 h6 a4 h7 f3 g6 g3 b6 Kg4 b7 f5 g7 a3 d5 f4 Kd4 c3 Ke5 a2 d6 g2 b4 c2 d7 c1N b5 Ra6 b6 Bd3 Nc3 Kg3 Rh6 f2 Nf3 g1Q Nd4 f1Q Nc2 Ne7 Kf6 Qe8 d8N f3 Nc6 f2 N6d4 Nec6 g8R+ Bg4 Rhg6 Bd6 Kg7 Ra5 Rf6 Qe6 Rh6 Nd7 b8R Nd8 b7 Bf3 Ra8 Bfe4 b8N Bc6 Ra7 Qe2 Rh5 f1Q Rb5 Qh5 Qd2 Qfd1 Rf8 Bf4 Rf6 Qg5+ Rg6 Ne5 Nd7 Nb3 Nb8 Nc5 Nd7 Qc1 Qd1 Na6 Qd2 Re8 h8Q Nb8 Qf8 Qgf1 Qf6 Re7+ Kh8 Qfd1 Qh2+ Kg4 Qh6 Bh2 Qhf8 Rf7 Qd6 Kh4 Rab1 a1B R1b3 Re7 Ra3 Kg3 Qf7 Bf3 Qd5 Qeg4 Rga6 Qe6 Qd6 Bc6 Qf6 Rh7#
2n3Q1/N1n2P2/pr2QbB1/1bKq1Qb1/2NB1r1b/N3N2n/k1rp4/2Q2b2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 h4 h6 b4 Bb7 g4 Bc8 Ra3 Qb6 Rf3 Qd8 Rf4 gxf4 g5 h5 Rh3 Qb6 Rg3 Qd8 Rg4 hxg4 Kf2 Kf7 c4 d5 c5 e5 f6 Ke6 c6 g3+ Ke2 g2 b6 e3 Kd3 f3 c7 e4+ Kc2 f2 Kb3 d3 b7 d4 Kc4 e2 h5 e1B b5 d2 g6 d3 h6 e3 b6 e2 g7 Na6 b8Q Ne7 g8N Bg7 h7 Bd7 c8N Nc7 f7 a6 b7 Bb5+ Kb4 Kd5 Na7 Bf6 Bb2 Nc8 Nf3 g1N Nh6 Nh3 Qc1 d1R+ Nfd2 Rg8 h8Q Rg4+ Bd4 Rf4 Qg8 Qd7 Qc2 Rc1 Ng4 Qf5 Qc3 Rc2 Nc4 Bd2 Nba3 e1B Qg6 Qe5 Qf5 Bc1 Be2 f1B Qd2 Beh4 Qe3 d2 Bd3 Bfg5 Qe1 Bb2 Qc1 Ne7 Qg8 Nc8 b8Q Ba1 Qb6 Rb8 Qbg6 Rb6 Bf2 Bb2 Ne3+ Kd4 Qge6 Qd5 Qg4 Ba1 Bg6 Bb2 Qgf5 Ba1 Ka5 Kc3 Bg1 Kb3 Bf2 Ka2 Kb4 Qg2 Kc5 Bg7 Ng4 Bh8 Bd4 Bhf6 Ne3 Qd5+
RrR3K1/5r1N/5qr1/b2QQQN1/1k1PRRp1/2n1Q1r1/3rp3/1qn1q2b w - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ne2 g6 Ng1 g5 g4 Nf6 b3 Ng8 Bh3 Bd7 Bb2 Bc8 f5 h6 Be5 h5 Bf4 gxf4 g5 Bg7 Bg4 hxg4 Kf1 Bh6 Ke1 Bf8 Ke2 Kd7 h4 Kd6 f6 Kc5 d4+ Kb4 f7 a5 b6 c5 g6 e5 b7 a4 h5 a3 g7 a2 h6 c3 h7 c2 Qf1 c1Q Qd1 c4 Qc2 c3 Rh2 e3 Kd3 f3 Ke4 e2 Rg2 e1Q+ Re2 f2 Nh3 f1R Ng5 Ne7 g8Q Nd7 Nd2 Qb1 Ndf3 Nd5 Kf5 e4 Kg6 e3 b8R+ Bb7 Qf5 c2 Rc8 Bh6 f8Q+ Nc5 Kf7 c1R Qe7 Rc3 Rf2 e2 Qe3 Qb6 Re8 Rc2 Re4 Nd3 Qd8 Nc3 Qdd5 Rhb8 h8R Rd2 Rc8 Ra6 Kg8 Qf6 Nh7 Nc1 Nfg5 Rg1 Rff4 Rg3 Qfe6 Ba8 Qef5 Ra7 Re6 Rf7 Ree4 Ka3 b4 Ka4 b5 Kb4 b6 Bf8 b7 Be7 Qc6 Bd8 Qce6 Ba5 Qfd5 Qb3 Rb1 a1R Qef5 Ra3 Ra1 Qb1 Ra2 Rh3 Rce8 Rh6 Rd8 Rc8 b8Q+ Bb7 Qc7 Rb8 Rc8 Bc6 Ree8 Bb7 Qce5 Ba8 Qdd7 Bh1 Qdd5 Rb3 Re7 Bb6 Ra8 Ba5 Ree8 Nd3 Qf2 Na4 Qc7 Nc1 Ree4 Rg3 Qce5 Nc3 Qe3 Rg6+
4Q3/1Pr3Qr/QK4q1/p1Bk1qB1/2Rprqbn/1B4Q1/1nb4b/BR5q w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Kd2 Ke7 Kd3 Kd6 Kc4 a5 b4 f5 h4 d3 e4 f2 b6 g3 Kb5 d2 c4 f3 b7 g2 g6 g1Q h5 f4 g7 Qg6 h6 Rh7 Ra4 Qdg5+ Kb6 Ne7 g8Q Ra7 b5 Na6 b8B+ Rc7 Ba7 Nc5 Qb3 d1B Qg7 Q5f5 e5+ Ke6 Bd2 Nd3 c5+ d5 c6 Nb2 Bc4 Bc2 Rb1 f1R Qd3 f2 Qg3 f3 Bg5 Rh1 Bb3 f1Q Rh4 f2 Rc4 Rh8 h7 Rh4 Qc3 Qh1 Qg3 Rg8 h8B f1Q Be3 Re4 Bg5 Rd7 c7 Q1f4 Qh7 Rg7 Qh6 Ba6 c8Q Rh7 Qg7 Bb7 Qa8 Bc8 Qb7 Rc7 Qa6 Kd7+ e6+ Kd6 Qg8 Bh6 Bc3 d4 Qg7 Nd1 Ba1 Nb2 Qd3 Kd5 Qg3 Nc6 e7 Ne5+ Qf6 Be6 e8Q Nf3 Qg7 Nh4 Bb8 Rf7 Bd6 Re7 Bc5 Rc7 Qgf7 Bf8 Qg8 Bd6 Qg7 Rc8 Ka7 Rc6 b6 Rc7+ b7 Qff3 Qe1 Bh2 Kb6 Q5f4 Qg3 Qfh5 Qge7 Bg4+ Qf6 Qgf5 Qg7 Qhg6+
3r1Q2/1b1brN1P/1r1Rq1NQ/4qRb1/1b1p1npR/4R3/3r2NK/2n2k1N w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 e4 Ke7 Ke2 Kd6 Kf1 Kc5 Kg2 Kc4 b4 f1R h4 a5 g6 f5 h5 d5 e5 f3+ Kh2 f4 b6 d3 b7 f2 e6 f3 e7 d2 e8R a4 g7 a3 b5 a2 h6 Qe7 b6 Nd7 b8Q Re1 h7 f1B b7 f2 Nh3 Ne5 Nc3 Nf6 g8N Nd3 Ne4 Bg2 Nh6 f1Q Qc1 d1R Nf7 Qe6 Nf4 Rd2 Ng3 Nh5 c3 Bf3+ Ng2 Bb4 Qf4+ d4 b8R Qfe2 Rb5 Rb8 Rf5 Bd7 Rb1 Be7 Rb6 a1B Rd6 Bb7 Qh6 Bf6 Qa3 Nc1 Qc5+ Kd3 c4 Bb2 Qa3+ Bc3 c5 Be7 c6 Nf4 c7 Bg5 c8N Q2e5 Ne7 Rg8 Qc5 Bb4 Ng6 Rh8 Re7 Rhc8 Re8 Rc6 Re7 Rb6 Qc8 Ree2 Qcf8 Ra8 Re1 Re3 Nh1 Rd8 Rf1 Ke2 Rf3 Bb5 Rh3 Kf1 Rh4 B5c6 Rc7 Bd7 Rc3 Re8 Ra3 Re7 Rb3 Rc3 Ra3 Rc8 Re3 Rd8
3qb1b1/B2P4/qnpB1b2/1b1nQ1Q1/5R1r/1Kn1rRRR/3nB2p/2k2B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 dxc4 h5 exf4 g4 h6 Nf3 Kd7 Nh4 Ke8 Nc3 Be6 Ne4 gxh4 g5 Bd7 g6 Bc8 Ng5 hxg5 d4 Ke7 Kd2 Kd6 Kc2 Kd5 b4 Ke4 d5 a5 e3 f5 b6 f3 g7 g4 d6 c6 b5 h3 h6 f2 b7 h2 h7 c3 b6 a4 Be2 f1B Rg1 g3 Ba6 a3 Qh5 f4 Kb3 c2 Qb5 f3 Qe2 f2 Rg2 a2 Kb4 Nd7 b8R Ngf6 g8Q Nd5+ Kb3 Be7 b7 N7b6 Qg5 Bd7 Ba3 Be8 d7 Bf6 Bd6 c1Q Qb2 Bb5 Qbe5+ Kd3 e4 f1B Rf2 g2 Rf4 Kd2 Rc8 g1N b8B Nb4 Ba7 Ne2 Rb8 Nc3 Rb7 Rg8 h8R N4d5 Rh3 Rh8 Rb1 Rh4 Rb2+ Kd1 Rg2 Qa1 Rgg3 Kc1 Rgf3 Bbd3 Rhg3 Bh3 Bb5 Be6 Rh3 Bb1 Bf1 Bd3 Rhg3 Bg8 Rb8 Nba4 Rb4 Ba6 Rd4 Bb5 Rdd3 Nab6 Rh3 Qc8 Rfg3 Rb8 Rdf3 Qa6 Qef5 Qc8 e5 Qd8 e6 Rc8 e7 Ra8 Bab8 Ra4 Ba7 Re4 Qe6 Re3 Qee5 Qb1+ Ka3 Qd3 Kb3 a1N+ Ka3 Bg6 e8B Nb3 Bf7 Nd2 Be6 Nc7 Bc4 Be8 Be2 Qd5 Bcd3 Qa2+ Kb4 Qa6 Bf1 Ndb1 Bde2 N7d5+ Kb3 Nd2#
NQ5q/1q2rp1n/1N3P1B/4rQbq/BqKQQ1nN/k2p1q2/n7/2N1q3 w - - 0 1 legal: proof: d4 d5 b4 c5 e4 a5 f4 axb4 f5 g5 a3 Be6 Bf4 cxd4 Bc1 d3 Be2 d4 Bf1 Bd5 exd5 Ra7 Be2 Ra4 Bf1 Ra8 a4 Na6 Bb2 Qb8 Qh5 Qg3+ Kd2 Qe5 Be2 Nh6 Na3 Qc7 Rf1 Nb8 Rf4 Ng8 Bc1 Kd7 Nb1 Ra7 Ke1 Qd8 Bf1 Ra8 Qd1 Ke8 g4 h6 h4 gxf4 g5 h5 Rh3 Rh7 Rg3 Rh8 Rg4 hxg4 Kd2 Kd7 c4 Kd6 a5 Kc5 h5 b5 g6 e5 h6 e4 g7 f3 f6 e3+ Ke1 b3 a6 Kb4 d6 e2 Kd2 g3 a7 b2 d7 f2 c5 g2 c6 Na6 h7 Nh6 g8N Ng4 Nc3 b1Q Nh3 g1N c7 Bh6+ Ng5 Nh3 Ne7 Re8 Nf5 Re5 c8Q Qh8 Bg2 f1Q d8Q Qf3 Nh4 Qb2+ Qc2 Ka3 Qf5 b4 Na2 b3 Qd5 Rae8 a8N Nb4 Nb6 R8e7 Qfe4 Nf4 Ne6 Bg5 Nc7 Ne6+ Qe3 Nf8 Nca8 Nf2 Qe4 Ng4 Nc3 Na2 Bh3 Qg8 h8Q Nh7 Bg2 Qg7 Qb8 Qh8 Bh3 Kb4 Q3f4 Qb1 Qd1 b2 Qf1 Ka3 Qfe3 Nh6 Bd7 Ng4 Ba4 Qc2+ Ke1 Qb3 Kd2 Qb4 Qh3 Nh2 Qhf5 Qh5 Ke1 d2+ Kf2 d3 Q3d4 d1Q Bd2 Nc1 Na2 b1Q Bf4 Qh1 Ke3 Qg2 Qc4 e1Q+ Kd4 Qgf3 Bd2 Q4b3 Qcd5 Q3b2+ Kc4 Ng4 Qdd4 Qb5+ Kc3 Qd7 Kc4 Qb7 Bf4 Ne2 Nc1 Nc3 Be3 Na2 Ng6 Bh4 Bh6 Bg5 Nh4 Qbb4#
K2k1b2/3b3b/4rq1N/RNNqp3/3NPR1b/1b1p4/2R1R1Qr/q2Q1bn1 w - - 0 1 legal: proof: f4 e5 g4 a5 b4 axb4 d4 h5 d5 g5 Be3 Nc6 Bh3 gxf4 g5 Nd4 Bf5 c5 Bg4 Ne6 dxe6 hxg4 Bd4 cxd4 Kf2 f5 a4 d5 h4 b5 c4 b3 a5 g3+ Kf3 b2 e7 b4 a6 g2 c5 b3 c6 d3 a7 d2 g6 d4 g7 Rh6 h5 Nf6 g8N Ne4 c7 Re6 h6 Qd5 h7 Bd7 Na3 b1B h8R b2 Nb5 Rd8 a8Q Nc3+ Kf2 f3 c8R f4 R1h4 Bd3 Nh6 b1Q Ra5 Bh7 e3 d3 Ne2 Qc1 Ned4 Ne2 Rc2 Ng1 Rg8 Rb8 Rgg4 Qa1 Rh2 Bc8 Rgh4 Kd7 e8N Kd8 Qb7 Bd7 Nf6 Rc8 Ne4 Rc3 Qb1 d1B Nc5 Ra3 Re2 Bb3 Qd1 Ra2 Ke1 Bc2 Kd2 f2 e4 f3 Rf4 Rb2 Kc3 Bb3 Kb4 f1Q Qa6 f2 Qc6 Re7 Qg6 Re6 Rc2 Ne2 Qg7 g1B Qg2 Ra2 Rh3 Bh2 Re3 Ng1 Ree2 Rb2 Ra4 Bg3 Ka5 Bh4 Ra2 Re7 Ka6 Re6+ Ka7 Qe1 Nhf5 f1B Ra5 Qg3 Nh6 Qg6 Rc4 Rd2 Rc2 Qg7 Re3 Rf2 Ree2 Qf6 Kb8 Rf3 Ka7 Rh3 Kb8 Rh2 Ka7 Rc6 Ka8 Re6+
nNRn2q1/Q4bp1/q1R3Q1/3p1Pr1/k1p5/rR1b1QR1/2nbQq1N/6K1 w - - 0 1 illegal: No possible last move, all moves rejected
2Bq1NKQ/p1k2B1p/7B/1Q3nq1/r1b1r2P/1n5Q/p3N3/bBQrn2q w - - 0 1 legal: proof: g4 b5 b4 d5 a4 bxa4 h4 g5 f4 c5 bxc5 f5 e4 fxe4 f5 d4 Rh3 Bd7 Re3 Bc8 Raa3 Nc6 Rf3 Nb8 Rae3 dxe3 Rf4 gxf4 Ke2 Kd7 c4 e5 d4 a3 d5 a2 f6 Qa5 g5 Qa6 f7 Qd6 g6 Qe6 g7 Bb7 c6+ Kc7 c5 Qf6 Nf3 Ne7 g8B Nf5 Nc3 Na6 Ng5 Bg7 f8Q Rb8 Bf7 Qd8 Qe8 Bc8 Bd2 Rb4 Qc1 Ra4 Bh3 Be6 d6+ Kb8 d7 Kc7 Bg4 Bd5 Bgh5 Bb3 Bhg6 f3+ Kf1 e2+ Kf2 e1N Ne2 Bc4 Ne6+ Kb8 Nf8 Kc7 Bh6 e3+ Kg1 e4 Kh2 f2 Kh3 f1R Kg4 Ba1 Kh5 Kb8 c7+ Kb7 c8B+ Kc7 c6 Nc5 Qe7 Nb3 Qc5 Rg8 Qb5 Rg7 Be6 Re7 Bef7 Rh1 Ng1 e2 Kg5 Nfd4 Kf6 e3 Bb1 Re4+ Kg7 Nf5+ Kg8 Nd3 Qa3 e1Q Ne2 Qd2 Qb2 Rd1 Qc1 Kd6 c7 Ne1 Bb7 Qa5 c8Q Qg5+ Bg7 Qc7 d8Q+ Qd7 Qe8 Qdd8 Qce6+ Kc7 Bc8 Ng3 Qh3 Nf5 Ng3 Qgf6 Bh6 e2 Qe6 Qg5+ Qg6 Ng2 Qg7 e1Q Ne2 Qf1 Ba6 Ne1 Bc8 Qgd2 Qgb2 Qh1 Qh8 Q2g5+
RB3k2/B7/pB2R3/1r3bQK/1n2p3/r1P1b1pB/bnqq1R1q/1q1R3Q w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 f5 Bh6 Nh3 Bf8 Nf4 h6 Nd2 gxf4 Nf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 Kf2 d5 h4 e5 b4 e3+ Kg2 e2 f6 e1Q b6 f3+ Kh2 e4 h5 f2 Kg3 d3 Kh4 d4 c3 d2 b5 d3 g6 g3 b7 Nh6 b6 Nf7 h6 Nd6 g7 Qe2 g8Q Na6 b8R Bf5 h7 Nc4 b7 Nb2 Bg2 f1Q Bh3 Qh2 Kh5 Nb4 Qg5 Bh6 f7+ Kf8 Ra6 Qe1 Qf3 d1B Re6 Bb3 Be3 d2 Bb6 Qb1 Rd1 Ba2 Qh1 Rg8 h8B Qc2 Qh4 Be3 Bhd4 Rg4 Qg5 Qb1 Re1 d1Q Rc8 Qdc2 b8B Rf4 Rc1 Rf1 Rd1 a6 B6a7 Re1 Bdb6 Rg1 Bf4 Rb8 Be5 Rb7 Ra8 Rg2 Beb8 Rd2 Rg6 Rd5 Rh6 Ra5 Re6 Qdd2 Qh4 Kg7 f8R Ra3 Qf4 Rd7 Rff6 Rd5 Qe5 Rb5 Qc5 Bh7 Rf2 Bf5 Qe7+ Kg8 Qg5+ Kf8
bn3k1b/1r1pq1R1/5NQ1/1rn1N1Q1/PN1RR1p1/2qb2bp/2N1K2R/5r2 w - - 0 1 illegal: No possible last move, all moves rejected
n4Q2/pp5k/q4q1N/P3N1r1/1bR2Rr1/1K3q1N/rNR1Q1rp/3nrR2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 f3 c5 Ke2 cxb4 Kf2 Qc7 Ke1 Qd8 Ke2 e5 Na3 e3 Rb1 e4 Ra1 Bf5 Nb1 Bg6 Ke1 e2 Kf2 e3+ Kg3 Be4 fxe4 Qb6 Kf3 Qd8 h4 g5 h5 Qc8 Bb2 Qc4 Bf6 Qc3 Kg4 Nc6 Kf5 Nd4+ Ke5 Bc5 Kd5 Nc6 Bd8 Qe5+ Kc4 Qf6 Kb3 Nb8 Be7 Qb6 Kb2 Qd8 Kc1 Bd6 Bf6 Bf8 Be5 Nc6 Bg3 Nb8 Bh4 gxh4 g4 Qg5 Bh3 Qd8 g5 Qd4 g6 Bh6 Bf5 Bf8 g7 Qd8 Bg6 hxg6 Kb2 e1Q c4 f5 d4 Kf7 a4 h3 e5 b3 c5 g5 h6 Kg6 h7 f4 e6 h2 e7 e2 e8R g4 a5 g3 c6 f3 d5 f2 d6 f1Q d7 g2 c7 Ne7 c8N Qef2 g8N Nf5 Ra2 e1R+ Re2 Ne3 Nd6 Qf3 Ra4 Na6 Nd2 Nc7 Nh3 g1R Nf7 Rg2 Nc4 Qh4 d8Q Qhf6+ Nfe5+ Kg7 Ne7 Rg8 h8R Rb8 Rg1 Na8 Rc2 Qd3 Qe2 Nd1+ Ka3 b2+ Ka2 b1R Nb2 Rc1 Rf1 Qda6 Rhh4 Rb1 Rhe4 Kh7 Rac4 R8g4 Ng8 Bb4 Nh6 Rc1 Qd6 Rbg8 Qf8 R8g5 Rf4 Rb1 Nbd3 Ra1+ Kb3 Bc3 Nb2 Ra2 Rc5 Bb4+ R5c3 Q3c6 Rcc4 Qf3+
NK6/2rp2bQ/1p1pknQ1/3Rq1p1/6n1/1b2P1N1/1RQ2N1q/rn1rQ1N1 w - - 0 1 legal: proof: d4 a5 f4 e5 fxe5 Nf6 b4 axb4 d5 Ng8 d6 cxd6 g4 Qc7 g5 Qb6 g6 Qd8 Bh3 Ra7 Bg5 Ra8 Bf6 gxf6 g7 f5 Bg2 f4 Be4 Qe7 Bf5 Qd8 Bg6 hxg6 Kd2 Ke7 Kd3 f5 Kc4 b3 Kb5 b2 h4 b6 c4 f3 a4 f2 h5 f1N c5 f4 e3 f3 c6 g5 e6 f2 c7 Nh6 g8Q Qe8 a5 Ra7 a6 Ng4 h6 Nd2 h7 f1R Ra2 Qh5 Qe1 Nf2 Nc3 b1Q+ Rb2 Qf3 Nce2 Qbe4 Qg6 Qg2 Ng3 Bb7 c8Q Bg7 Qc2 Rc8 h8Q Rc7 Qhh7 Ng4 Rh2 Ra8 a7 Bd5 Rh1 Nc6 Ka6 Qf5 Rh4 Nf6 Rd4 Bb3 Rd5 Rd8 a8N Qe5 Nh1 Nb1 Nf2 Rcc8 Kb7 Qgh2 Qee2 Rd1 Qe1 Nd4 Ka7 Nf5 Kb7 Rf8 Ka7 Rf7 Kb7 Rc7+ Kb8 Ke8 e7 Nh6 Qge4 Rf8 Qef5 Kf7+ e8N Ke7 Qfg6 Rf7 Qf1 Nhg4 Qe1 Ne4 Nf6 Ke6 Nh5+ Nef6 Qgd3 Ne8 Ng3 Rf5 Qb4 Nef6 Qe1 Rf4 Qdg6 Ra4 N1e2 Ra3 Ng1 Ra1
2K4Q/P1R3n1/2N1pN2/rr2r1b1/2ppb2q/N3R3/Q1R2p1n/R2qr1Nk w - - 0 1 illegal: No proof kernel
1N3N2/3QQpQr/8/Pq2p2R/4k3/1q1Rn1Rn/1pp1R1qp/br3bQK w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 Ba3 bxc4 b5 e5 Bb4 axb4 fxe5 Ra7 Na3 Ra4 Nb1 Ra8 e6 Bd6 Nf3 Kf8 e7+ Kg7 e8R Nh6 Ng1 Ng8 e4 Nh6 e5 Bb7 e6 Bd5 e7 Ng8 Bd3 Bb7 Bf5 Bc8 Be6 dxe6 Kf1 Kg6 g4 h5 Kg2 c5 a4 b3 d4 h3+ Kf3 h2 Kg2 c3 b6 h4 b7 c2 g5 Kf5 d5 c1Q g6 c4 g7 h3+ Kf2 c3 a5 c2 Na3 Rh7 Nc4 Nh6 g8Q Qd2+ Ne2 Be5 d6 Ke4 d7 Nc6 b8Q Ba6 Ra3 Nf5 Qb6 Qb8 d8R Ba1 Qg7 Ne3 Ne5 Nb4 Rd3 Nbd5 Ng6 Nf4 Nf8 b2 Qd8 Qb3 Qd7 Rd8 Qdg1 Qdb4 Nd4 Qb5 Nc6 e5 Nb8 Qc6 Rd2 Bf1 Re2 Qcb5 Kg3 Q3b4 Rd3 Qb3 Qc6+ Rd5 Qd7 Rd4 Rd8 Rd6 Rc3 Rd1 e8Q Re1 Qee7 Rb1 Qf2 Qc6 Rd3 Qcb5 Rg1 h1Q Re8 Qf3+ Kh2 Rd1 Rg3 Rb1 Qg1 Qf2+ Kh1 h2 Rc8 Nh3 Rc6 Q3a4 Rh6 Qab3 Rh5 Qg2+
r1R2b1K/RB2nB2/1p1p1k2/qbB2p2/2Q3q1/1p1P1p2/2rp1r2/R2Q1B1R w - - 0 1 legal: proof: g4 a5 b4 axb4 f4 h5 g5 c5 d3 e5 Nd2 c4 Nh3 c3 Nf2 f6 Ng4 hxg4 Kf2 cxd2 Bb2 Na6 Ba3 Nc7 Bc1 Nd5 Rb1 f5 Ra1 Ndf6 gxf6 exf4 e4 Kf7 c4 g5 h4 b6 a4 d6 h5 g3+ Kf3 b3 e5 g2 a5 g1R c5 Rg2 a6 Rh2 a7 Ke6 c6 Bh6 c7 Qf8 f7 Qd8 f8R Ke7 e6 Rg2 Rf7+ Ke8 e7 Rh2 Ba3 Bd7 c8R Rh7 Bc5 Bf8 h6 Bb5 Rg7 Kd7 e8B+ Ke6 Rd7 Rf7 h7 Ne7 h8Q Rfh7 Qg8+ Kf6 Qc4 Qc7 Be3 Qc5 Bf7 Qa3 Rdc7 Qa5 Bc5 Rh8 Rd8 Rc8 a8B Rg2 Bb7 Ra8 Bf2 Rh7 Rdc8 g4+ Ke2 f3+ Ke3 g3 Kf4 Rh8 Bc5 Rf2 Rd7 g2 Rdc7 Kg7 Kg5 Rg8 Kh5 Kf6 Rd7 Rg7 Kh6 g1Q Rdc7 Rg4+ Kh7 Re4 Kh8 Qg4 Ba6 Rf4 Ra7 Rd4 Bb7 Re4 Qa4 Rc4 Qb4 Rc1 Qc4 Rc2
2q1Nqr1/KBn1n1B1/2rp3q/3QPQnr/2bQ4/1Q1Q1Q2/n1n4k/5B2 w - - 0 1 legal: proof: e4 h5 g4 e5 b4 b5 d4 exd4 f4 g5 h4 Rh7 a4 Bb7 e5 Bc8 Nc3 Bc5 Nce2 Rh8 Rh3 Bd6 e6 Be5 Rg3 c6 fxe5 c5 Nf4 gxf4 axb5 c4 g5 Qc7 Raa3 Qd8 Rg4 hxg4 Rd3 cxd3 Kf2 Ke7 c4 a5 b6 f5 g6 f3 b5 f4 c5 g3+ Ke1 g2 Kd2 a4 h5 d6 g7 a3 h6 f2 h7 f3 c6 a2 c7 a1N b7 Nc2 b6 Na6 Ne2 g1N b8Q Nh3 b7 Ng5 Qa7 Bd7 b8Q Bb5 c8Q+ Nc7 Qab6 Bc4 Ng3 Qf8 Qcb7 Qc8 Ne4 Ra6 Nf6 Ra8 Bg2 f1R Ne8 f2 Qbf3 Rg1 Qc5 f1Q Qb3 Ra6 Qde2 Qf2 Bf1 Rc6 Qf5 Qh4 Qef3 Qh6 Qcd5 Rh1 Qde4 Rh5 Qee3 Nf6 g8Q Nfd5 Qgg6 Rg8 h8Q Kd8 Qhf6+ Ne7 Qd5 Qf8 Qff3 Qh6 Qf6f5 Qf8 Kd1 d2 Qed3 Qh6 Ke2 d1N Q5g4 Qf8 Q6f5 Nc3+ Kd2 Na2 Ke2 Nh7 Bh6 Ng5 Kd2 Rb6 Bg7 Rc6 Qde3 d3 Qgd4 Nc1 Kc3 d2 Qed3 d1Q Be2 Qh1 Bf1 Na3 Kb4 Na2+ Ka5 Nc2 Q5f4 Ng6 e7+ Kd7 Q5e4 Ke6 Qfd2 Rc5+ Kb6 Rc6+ Ka7 Qh3 Nf6 Qh2 e8B Ne7 Bg6 Qh4 Ne8 Qhf4 Q2f2 Q4f6 Bh7 Qh6 Qed5+ Kd7 Qa5 Ke6 Be4 Rb6 Bb7 Rc6 Qf3e2 Nf3 Qd3c3 Kf5 Qad5 Kg5 Qdd3 Kf4 Qcb2 Kg4 Qee3 Ng5 Qff5+ Kh4 Qee2 Nf3 Qed1 Kg3 Qbd4 Kh2 Q1e2+ Kh1 Qee4 Kh2 Qeg4 Ng5 Qff3 Qce6 Qgf5 Qc8
k1K1Q1bB/1n1N4/1r2rq2/p4Bbn/P4n1Q/2B1q2B/prQ1B1p1/3q2B1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 g5 Ra2 b5 Ra3 b4 b3 bxa3 b4 Bb7 Kf2 Ba6 Ke1 Bc8 h4 h5 Rh3 g4 Rf3 Bf5 Nc3 Bc8 Ne4 Ba6 Nf2 gxf3 g4 Bb7 g5 Bc8 Ng4 hxg4 Kf2 Kd7 e4 c5 d4 Kc7 b5 Kb7 d6 a5 h5 f5 d5 a2 h6 c4 h7 c3 e5 c2 e6 Ne7 d7 Nec6 g6 Ra6 e7 Bh6 e8B Ne5 b6 Nbc6 d6 Bg5 g7 Ka8 g8B Ng6 Bd2 c1Q Be2 Qf6 d8B Be6 d7 Bb3 Be7 Nd8 Bc5 Nb7 Be6 Bd5 B8f7 Rb8 h8B Bb3 d8Q g3+ Kf1 g2+ Kf2 Bd5 Bc3 Qd2 Qc2 Qe3+ Ke1 f2+ Kd1 f1N Nf3 Qf2 Ne5 f3 Nd7 f4 Bh3 Qe3 Bfe6 f2 Bef5 f3 Qe7 Bb3 Qh7 Bf7 Qh4 Ng3 B5d4 Nf4 Bc5 Qee5 Kd2 f1R B5d4 Qc5 Ke3 Ngh5 Ke4 Re1 Bg1 f2 Ne5 Ne6 Nd7 Qe3+ Kd5 f1Q Kc6 Nef4+ Kc7 Rb1 Bc4 Re8 Be2 Re6 Kc8 Qd1 Bb5 Bg8 Be2 Nc5 b7+ Ka7 Bf3 Rab6 Bf3g4 R1b2 b8Q+ Ka6 Qe5 Ka7 Be2 Nb7 Qee4 Ka8 Qe5 Red6 Qe8 Re6
q1Nr3n/1pQ2bNQ/kP2Q1bK/Nn6/rb3r2/N2Q1Q2/3n1q2/1q5R w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 gxh4 b5 f5 exf5 d4 Ba3 d3 Bb4 axb4 Na3 b3 cxd3 b2 d4 bxa1Q d5 Qb1 Bd3 Qb4 Bb1 Qxb1 Ke2 Kd7 Kf3 e5 Kg4 c5 Kh5 Kc7 f4 Kb6 d4 c4 g4 h3 d6 c3 d7 h2 g5 e4 f6 h6 a5+ Ka7 a6 c2 f7 c1Q f5 e3 d5 e2 d6 e1R f6 Qd2 g6 Qf2 g7 Nc6 Nh3 Nd4 Ng5 Re4 Qd3 Rf4 Ne6 Ne7 g8Q Ng6 Qh7 Rg8 Ng7 Nh8 Rg1 Qe8 d8N h1N d7 Bb4 Nc6+ Kb6 a7 Qf8 d8N Be6 Ne7 Ka5 b6 Nb5 Rf1 Ka6 Ndc6 Qd8 f8Q Bf7+ Qhg6 Qb8 Qc8 Rd8 Qg4 Qc8 Na5 Qb8 Nc8 Ng3+ Kh4 h5 Kg5 h4 Kh6 h3 Rh1 h2 Qe6 Nf1 Qh7 Bg6 f7 Nd2 f8Q Bf7 Qfe7 Bg6 Qc7 Bf7 Rg1 h1B Rf1 Bf3 Rh1 B3h5 Qcc4 Qe5 Qc7 Bhg6 Qf3 Qeb2 Qd3 Q2a2 Qf3 Rb8 a8Q+ Na7 Nc2 Rd3 Nd6 Rd8 Nac4 Ra3 Nb2 Ka5 Nc8 Kb5 Nc4 Nc6 Qa7 Qaa1 Qa8 Ra2 Qaa3 Nd4 Qad3 Ra8 Qcd6 Qa7 Qc7 Qb8 Qed6 Ra4 N2a3+ Ka6 Qe6 Qa8 Na5+ Nb5
1k3rn1/pqq2Q2/2rb1P2/r1n1Q3/2b2q2/1QBB1QQ1/4n1R1/nBBK4 w - - 0 1 legal: proof: c4 b5 e4 c5 b4 f5 a4 fxe4 axb5 d5 cxd5 Bd7 b6 Be6 b5 Nc6 Ra4 Nb8 Rb4 Bc8 f4 cxb4 g4 g5 f5 Ba6 Nc3 Bc8 Nce2 h6 Nf4 gxf4 Nh3 h5 g5 Nc6 Nf2 Nb8 Ng4 hxg4 d4 Kd7 h4 e5 h5 g3 d6 e3 h6 e2 h7 f3 b7 e4 b6 g2 d5 g1N g6 b3 g7 b2 Rh2 b1Q Rg2 Qc7 Qb3 Na6 b8Q Nc5 b7 f2+ Kd2 e1N Kd1 e3 Bd3 Kd8 d7 Ne2 f6 Qb2 Bb1 f1R Bd3 Qf4 Qe5 Bd6 b8Q Rf3 Q8b7 Nc2 Qb8 Na1 Bb1 Ne7 g8B Rg3 Bf7 Rg5 Bfg6 Rf8 h8Q Ng8 Qh3 Qc3 Q8b7 Qa5 Bgd3 Qc7 Qc6 Ba6 Qg3 Rc8 Qa8 Bc4 Qc6 Qa5 Qa8 Kc7 d8B+ Kd7 Bb6 Rc6 Bc7 Qb5 Ba5 Qb7 Bc3 Kc7 Qae8 Rf5 Qf7+ Kb8 Qf3 Bc7 d6 Rh5 d7 Bd6 d8Q+ Rc8 Qdd7 Qf5 Rg4 Qh7 Rg7 Ne4 Qd4 Rc6 Qe5 Ng1 Qh2 Ra5 Qd5 Nc5 Rg2 Qf7 Qf1 e2+ Kd2 Qe7 Qg3 Qd8 Q7f7 Qc7 Ke3 e1Q+ Qe2 Qbb6 Qde5 Qf1 Kd2 Qf4+ Kd1 Qbb7 Qef3 Ne2
2K2nB1/p1Bb4/N1nQBp2/2r5/r1r4B/1bq1nn1B/2P1q3/2B1B1kB w - - 0 1 legal: proof: e4 h5 g4 e5 b4 b5 d4 exd4 f4 g5 h4 Rh7 a4 Bb7 e5 Bc8 Nc3 Bc5 Nce2 Rh8 Rh3 Bd6 e6 Be5 Rg3 c6 fxe5 c5 Nf4 gxf4 axb5 c4 g5 Qc7 Raa3 Qd8 Rg4 hxg4 Rd3 cxd3 Kd2 Ke7 h5 d5 g6 f6 g7 g3 b6 f3 b5 f2 b7 g2 h6 Bd7 h7 Qc7 b6 Nc6 b8B Be8 Ne2 g1N Bh3 f1B b7 Qa5+ Nc3 Qc5 Bc7 Rc8 Ke1 d2+ Kf2 d3+ Kg3 d4 Kg4 Nf3 Na2 Qc3 Kf5 Bg2 b8B Bf1 Qe1 d1R Nb4 d2 Na6 Bc4 Qg3 d3 Ba5 Rf1 Bbc7 d1Q Bg5 d2 Bh4 Qe2 Qf4 d1N Qg3 Qb2 Be1 Bb3 Qf4 Bh5 Qd4 Qc3 Qd6+ Ke8 e7 Kf7 Qd2 Rh1 e8B+ Ke7 Bd7 Be8 e6 Ne3+ Ke4 Rg1 Qd5 Rg5 Qe5 Nh6 g8B Nhf5 Kf4 N5d4 Qd5 Kf8 e7+ Kg7 Bde6 Kh6 Qd6 Kh5 Ke4 Rc5 Kf4 Bf7 e8B Bg6 B8d7 Be8 Bg2 Rc4 Bh1 Rc5 Bh3 Ne6+ Ke4 Nf8 Bde6 Ng6 Bgf7 Rg8 h8B Rg7 Bg8 Nf8 Kf4 Rgg5 Bg7 Rc4+ Qd4 Rgc5 Bh6 Ra4 Ke4 Rcc4 Bhf4 Ng2+ Kd5 Ne3+ Kd6 Rc5 Bd2 Rcc4 Bfg3 Rc5 Bge1 Rcc4 Bhf2 Kg5 Qb6 Kf4 Bc1 Ncd4 Bb8 R8c5 Qd8 Nc6 Kc7 Qed2 Bh4 Qf2 Bg5+ Kg3 Bh4+ Kh2 Kc8+ Kg1 Qd6 Qe2 Bc7 Bd7+
1N3R2/1N1p4/4b1RB/r2Pb1NK/p1n1Q3/3q2p1/Pr4b1/2k1bBrB w - - 0 1 legal: proof: g4 h5 b4 b5 f4 g5 h4 gxf4 e4 c5 bxc5 f5 c4 bxc4 exf5 e6 Na3 exf5 Nb1 Na6 Ke2 Nc7 Kf2 Ne6 Ke1 Ng5 hxg5 hxg4 Ke2 Ke7 d4 Ke6 g6 Kd5 c6 Ke4 c7 a5 g7 f3+ Kf2 f4 Qb3 g3+ Ke1 f2+ Ke2 c3 Qb8 c2 Qb5 f3+ Kd2 a4 Qh5 Ne7 g8N Qe8 Qg6+ Nf5 Nh3 Ba6 c8B Bd6 Na3 Bc4 Ne7 Be5 Nc6 Be6 Nc4 Ra5 Bb7 Rh4 Qh7 Qg6 Ng5+ Kf4 Rh2 Ne3 Nb8 Rh6 Rh1 Rh2 Nd6 Rg2 Rh6 Qe4 Be2 f1R Rg6 f2 Bd3 Rd1+ Ke2 Rdg1 Bd5 Qf5 Nb7 Rh2 Bd2 c1B Bh1 Rhg2 d5 f1B+ Ke1 Ba3 Rc1 Rf2 Rc8 Bg2+ Bf1 Qd3 Bc1 Rb2 Rf8+ Qf5 Bd2 Bb4 Ke2 Bbc3 Nf7 Ke4 Ng5+ Kd4 Qe7 Nc4 Qe8 Rb3 Bf4 Be1 Bc1 Kc3 Bf4 Bh3 Kf3 Qd3+ Be3 Kb2 Qe7 Bf7 Qe8 Bg2+ Kg4 Kc2 Kh5 Rb2 Qe6 Kd1 Qf5 Be6 Qe4 Rc2 Nh7 Re2 Bh6 Rb2 Ng5 Kc1
k3B2R/r2BN3/nR1P4/b3n2B/b2p2Q1/6nN/pKbp1P2/3Nn2n w - - 0 1 legal: proof: b4 c5 a4 f5 h4 g5 e4 gxh4 c4 b5 axb5 cxb4 Bd3 fxe4 Be2 Nf6 Bf1 Ng8 d3 d5 Qe2 d4 Qd1 Qd5 cxd5 a6 Bb2 a5 Bc3 e3 Bd2 exd2+ Ke2 Ra7 Na3 Rc7 Nb1 Rc4 dxc4 Bg4+ Kd3 Be6 Ke2 Bc8 Kd3 Kd8 Kc2 Kc7 g4 Kb7 c5 e5 g5 h5 c6+ Ka8 c7 b3+ Kb2 a4 b6 e4 g6 e3 g7 h3 Bd3 e2 Bh7 e1N Ra3 h2 Ka1 h4 Bg6 h3 Nc3 Na6 Be8 Nf6 g8B Bd7 c8B Bb4 d6 Ba5 Bgf7 Ng4 Kb2 Ne5 Qg4 Rh7 Nd1 Bb5 Bh5 Ra7 Ra2 Bc6 Bcd7 a3+ Kb1 Ba4 b7+ Kb8 Rc2 b2 Ka2 b1B+ Ka1 a2 Rc6 Ra8 Kb2 Ka7 b8N Bbc2 Ne3 Kb7 Nd1 Ra7 Rb6+ Ka8 Nc6 Bg6 Ne7 Bb1 Nf3 Bbc2 Rg1 h1N Ng5 h2 Nh3 Ng3 Rg2 Ne4 Rg3 h1N Rf3 Nc6 Rf8 Neg3 Rh8 Ne5
n2r2BQ/qRB1np2/1RK1PP2/7q/3k4/1nb1R1rN/1nb2NNq/n7 w - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 a4 Qg5 axb5 Qd8 h4 exd4 c4 g5 b6 gxh4 Na3 axb6 Nb1 b5 Qb3 bxc4 Qd3 Ba6 Qd1 Bc8 Kd2 Ke7 e4 Kf6 g4 Ke5 g5 d5 c6 h5 c7 h3 f3 c3+ Kd3 h2 g6 h4 g7 h3 Bg5 c2 Ra3 Ne7 g8R Nd7 Bg2 Nb6 Nc3 Qd7 Nce2 Bg7 Nf4 Ra7 Qd2 Na8 Qc3 Ra6 Re8 Rg6 Ra6 Qa4 Bh4 Bf5 c8N Rg3 Rb6 Qa7 Nd6 Bh7 Reb8 Rd8 R8b7 Bh8 Bf1 Bf6 Ng2 c1N+ Kd2 Bf5 Bd3 Nb3+ Ke2 Bg7 Bc2 Bf6 Qc8 d3+ Ke3 d2 Kd3 d4 Kc4 d1Q Kb5 d3 f4+ Kd4 e5 d2 e6 Qh5 Ne4 d1N Nf2 Nb2 Bg5 Bg6 f5 Na1 Bb1 Be5 f6 Bc2 Bh6 Nc4 Bf4 Nd2 Qc6 Ndb3 Qe8 Kd5 Qf8 Bc3 Qh8 Kd4+ Bg5 Bd1 Bh7 Bc2 Bg8 Ke5 Ne2 Kd5 Rg1 h1N Re1 h2 Nef4+ Kd4 N4h3 Be4 Nd3 Nf2 Re3 Nd1 Ndf2 Bf5 Bf4 h1Q Bc7 Qh2 Ng5 Nb2 Ngh3 Nc8 Kc6 Bb1 Qh7 Bc2 Qh8 Ne7+
3BrQN1/k4nbb/P5n1/2N2RnN/5brq/1B4P1/p1R3bR/1nn4K w - - 0 1 legal: proof: e4 a5 b4 axb4 d4 d5 h4 f5 a4 g5 exf5 gxh4 Qf3 c6 Qa3 bxa3 c4 c5 cxd5 cxd4 f4 Kd7 Kf2 Kc7 f6 Kb6 f5 e5 d6 h5 d7 a2 g3 e4 Kg2 h3+ Kh2 d3 a5+ Ka7 a6 b5 f7 d2 f6 d1N Bh6 e3 Bg7 h4 Nc3 e2 Nd5 e1B Rb1 b4 Rc1 b3 Bd3 b2 Be4 b1N Rc2 Nh6 Rc3 Rg8 Rb3 Bd2 Bd3 Bf4 Rb5 Nb2 Bg6 Nc6 Bc2 Nd3 Bb3 Ne7 Ne2 Nc1 Rc5 Ng6 Rc2 Bb7 Ne7 Bg2 Bh8 Bg7 f8Q Nf7 Kg1 Be4 Rh2 Bd3 Kh1 Rc8 Nf5 Qe7 Nh6 Re8 d8N Bf5 Rf2 h2 Ne6 Qb4 Nc5 Qd4 Kg2 h1N Kg1 Qa4 Rh2 Nf2 Kg2 Ne4 Kh1 Bb8 Nf4 h3 Nh5 Neg5 Ne6 Qh4 Nc5 Nd8 f7 Bf4 Qd6 Bd3 f8R Bf5 Rf6 Ndf7 Qf8 Bd3 Rhe2 h2 Rf5 Bge5 Bf6 Rg7 Kg2 h1B+ Kg1 Rg8 Rh2 Bg2 Bd8 Bg7 Qd6 Re4 Qf6 Rge8 Ng8 Be5 Qd6 Rg4 Qf8 Bf4 Re5 Ngh8 Rd5 Bh7 Rf5 Bf1 Kh1 Ng6 Rc3 Bh3 Rcc2 Bg2+
bR2B3/1qQ5/R1P1bB1k/1R1NPrbr/2pK1b1N/7r/q2q1Nr1/6q1 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a3 a5 Qa4 axb4 Qd1 bxa3 Nh3 c5 Ng1 b5 Qc2 b4 Qa4 Nc6 Qd1 Na7 d3 Nb5 cxb5 c4 d4 Nf6 Kf2 Ne4+ Ke1 Nc5 dxc5 Qb6 Bd2 Qa5 Bc1 Qd8 Kf2 h5 g4 d5 e4 f5 g5 Kf7 g6+ Kg7 b6 a2 b7 b3 b8R h3 Qf3 h4 Bg2 h2 Be3 d4 Qg3 f3 Qh3 b2 Bf1 d3 Rb7+ Qc7 Bg2 f4 Rb3 d2 Nc3 b1Q Qe6 d1Q Bf1 h3 Rb4 Be7 Rb5 Kh6 Qa6 Bg5 g7+ Be6 Qb6 Rag8 Bd3 Qb7 Bd4 Qd2+ Be2 Qb3 Nd1 Qbb2 Rb1 a1B Bf6 Qa2 Qc7 Bb2 e5 Bc1 R1b4 Rh7 Ra4 Rhh8 Ra6 Rh7 Kf1 f2 Nf3 Rhh8 Rg1 h1B Nh4 h2 Bh5 Bhd5 Bg6 h1R Be8 Rh3 Rg3 Rh7 Rf3 Bc6 Kg2 f1R+ Nf2 Qc8 Rb8 Ba8 c6 Qb7 Rb3 Rhh8 Rb5 Rh7 Ng6 Rh5 Nh4 f3+ Kg3 Rhh8 Nd1 f2 Kf3 Qb4 Ke4 Bcf4 Kd4 Qba5 Nb2 Qd2+ Nd3 Rg1 Raa5 f1Q Ra3 Rf8 Ra6 Qde1 Nf2 Rg2 Rb3 Qg1 Rb5 Rf7 g8N+ Kh7 Ne7 Kh6 Kc5 Qed2 Nd5 Rhh7 Bh8 Rf5 Bf6 Rh8 Rab6 Rg8 Be7 Bf6 Ra6 R8g3 Bd8 B6g5 Bf6 Qda5 Kd4 Rh3 Ne7 Qae1 Nd5 Qed2+
3kq3/p7/n2P1q2/nnr1Q3/N1pr1bRR/5qr1/P1B1Nr2/2KBB2R w - - 0 1 legal: proof: f4 b5 c4 c5 b4 g5 h4 gxh4 e4 d6 e5 bxc4 exd6 e5 d4 exf4 b5 Ba6 bxa6 Nxa6 d5 Nb8 Kd2 h5 g4 f5 g5 c3+ Kc2 h3 g6 h2 g7 c4 Bb2 f3 Qd4 f2 Bh3 f1Q Na3 f4 Be6 f3 Rb1 h4 Re1 f2 Ba1 h3 Ne2 Nf6 g8B Bh6 Nf4 Ne4 Ng6 Bf4 Qd3 Na6 Rd1 Rc8 Qd4 Rc5 Bh7 Rg8 Nb5 Qe2+ Kb1 f1R Bg4 Qf6 d7+ Kd8 Qe5 Rf2 Rdg1 c2+ Kb2 Qe3 Bd1 Nd6 Nc3 Nb5 Na4 c1N+ Kb1 Rd2 Rg4 Nb3 Bc3 Na5 Bb4 Rf2 Be1 Rd2 Kc1 Qe4 Rf1 h1R Rh4 Rhh2 Rh1 Rhf2 Rg4 Be3 Nf4 h2 Ne2 Bf4 Rh4 Qf3 Bhc2 Rg3 Qe4 Kc7 d8R Qh5 Rb8 Qe8 d6+ Kd7 Rb7+ Kc8 Qe5 Kd8 Rf1 h1Q Rg7 Qg2 Rfh1 Qf3 Rgg4 Rd4+
3r1n2/n2p4/2b2PN1/KPpr1Rq1/2nR2B1/k1pR1n1N/7B/1Qbn1B2 w - - 0 1 legal: proof: e4 a5 b4 e5 d4 exd4 h4 g5 c4 gxh4 c5 f5 exf5 b6 b5 bxc5 a3 c4 Qb3 a4 Qxa4 c3 Qc2 Rxa3 Qd1 Ra8 g4 Ke7 f4 Kd6 f6 Kc5 g5 Kb4 f5 h5 f7 c5 g6 d3 g7 d2+ Ke2 h3 Kd3 h2 Nh3 h4 Ra7 Nf6 g8B Nc6 Ra5 Bh6 f8R Na7 Na3 Bb7 Qc2 d1N Be3 Nb2+ Ke2 Bc6 Nc4 Nh7 Bf4 Qg5 Be6 Rd8 Ne5 Nc4 Kd3 Rg8 Rf7 Nf8 Ng6 Rh8 Rg1 h1N Bh2 Ng3 Qd1 Rg8 Kc2 Ne4 Rg3 Ned2 Rd3 Nf3 Qe1 Rh8 Ra1 Rh7 Rad1 Ka3 Rd4 Rg7 R1d3 Rh7 Rf6 Re7 Qb1 Ree8 Bf7 Re5 Be6 Rd5 Rf7 Re5 f6 Rd5 Re7 Nce5 Bg4 Nc4 Nf2 h3 Re5 Nb2 Rf5 Nc4 Bb8 h2 Nh3 h1N Bh2 Nf2 Qe1 Ka2 Qe4 Ka1 Kb3 Nd1 Ka4 Kb2 Qe1 Qh4 Qe4 Bc1 Qe1 Qg5 Qe4 Nd6 Ka5 Kb3 Rd2 Ka3 Qb1 Nh4 R2d3 Nf3 Kb6 Nc4+ Ka6 Ncd2 Ka5 Nc4+
1b5N/B1QRpb2/pb4bn/5RN1/R7/pqr3PP/KNk5/2nrB1r1 w - - 0 1 illegal: No possible last move
2q5/3qnpr1/rBP3Nk/K3p1q1/1P2r2p/pB4Qn/qR3B2/R1N2N2 w - - 0 1 legal: proof: h4 b5 a4 bxa4 d4 g5 d5 gxh4 d6 cxd6 e3 d5 Nh3 d4 Ng1 d3 Nc3 d5 Nb1 d4 f4 e5 f5 d2+ Ke2 d3+ Kf2 Be6 fxe6 Be7 Qg4 Bc5 Qd1 Bd4 exd4 Qd7 Qh5 Qe7 Qd1 Qd8 Ke3 Kf8 c4 Kg7 g4 h5 b4 a5 g5 a3 g6 h3 c5 a4 d5 h2 c6 a2 e7 a3 e8Q h4 d6 Ra7 d7 Rh6 Qa4 d1R Ne2 d2 Kd3 Rc7 Kc4 Qg5 Kb5 Ra7 d8B Re1 Bb6 d1Q Nd2 Nd7 Qa6 Ndf6 Ka5 Ne7 Qb8 Rh7 Qg8+ Kh6 g7 Ne4 Bg2 Qc2 Nf1 Qd3 Bce3 Qd7 Nc1 Nf2 Bd5 Nh3 Bf2 Re4 Bb3 Qc8 Rg1 h1Q Rg2 Qg1 Rh2 Q1g4 Bfe3 Nd5 Rb1 a1Q Rhb2 Qa2 Bf2 Q5f4 Ra1 Qd2 Qf8 Qgd7 g8N+ Kg6 Qe7 Rg7 Qg5+ Kh7 Qg1 Qg5 Ne7 Kh6 Ng6 Ne7 Qg3 Rxa6+
3qQ3/1qqB4/Br1P3q/5PR1/5nb1/2kb3R/nR2rrBN/N1n2bKq w - - 0 1 illegal: No possible last move
1r2R3/n3QRb1/PB4N1/1RqbbrPK/1nN5/4N1nk/3B4/qrbbq3 w - - 0 1 legal: proof: b4 d5 h4 a5 c4 axb4 cxd5 g5 f4 gxh4 e3 e5 a3 exf4 Bd3 Nf6 Bc4 Ng8 Ba2 b3 Qh5 bxa2 Qe2 Ra4 Qd1 Ra8 Ke2 Kd7 Kf3 c5 Kg4 f5+ Kh5 b5 d4 h3 g4 c4 g5 h2 e4 f3 e5 c3 d6 Ke6 a4 b4 a5 c2 d7 b3 a6 b2 Be3 c1B Bf2 f4 d5+ Kf5 e6 Qa5 d8N Nc6 d6 Qc5 d7 Nge7 Qe2 Bg7 Nf7 Nb4 d8B Nec6 e7 Rf8 e8R Na7 Re3 Rb8 Kh4 h5 Nd2 b1R Be1 f2 Ne4 f1Q Ne5 f3 Rd3 f2 Bd2 Qe1 Qd1 f1N+ Nf2 Ng3 Re3 Ne2 Nc4 Kf4 Qb3 Bg4 Nf3 Rf5 Rf1 h1B Nfe5 Bd5 Bb6 Bgf3 Qa4 Bg4 Qd7 Bgf3 Kh3 h4 Qe7 Bh5 Nd1+ Bhf3 Kh2 h3 Ng6+ Kg4 Rb3 Rb2 Rb1 a1B Re3 Rb3 Qd7 Baf6 Re8 Rb2 Qe7 Be5+ Nf4 Rb3 Nde3+ Kh4 Ra1 Rb1 Ra5 Ng1 Rb5 Bd1 Rf2 Ne2 Rf3 Ng1 Kh1 h2 Kg2 Bf7 Rf1 Ne2 Kf3 Bg8 Ke4 Kg3 Ng6 Kh3 Rf4 Bf7 Kf3 h1Q+ Ng2 Kh2 Kg4 Bd5 Kh5 Kh3 Nge3 Qhg1 Ng2 Qgd4 Nge3 Qa1 Re4 Rf3 Rf4 Rf1 Rf6 Rf5 Rf7 Ng3#
2n1n3/5r2/krP2NB1/Pn1r1N2/b1NR1r2/1Q3rbK/q2R3r/1R1B1q1r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 a4 h5 f4 d5 Kf2 Kd7 g4 Kc6 Kg2 Kb6 c4 e5 g5 b3 g6 b2 g7 d3 f6 h3+ Kg3 d4 c5+ Ka6 a5 b5 f7 h2 f5 d2 f6 d3 Bg2 h4+ Kf3 h3 Kg3 e4 Qb3 d1N Qd5 b4 Qh5 d2 Kh4 e3 Ne2 b3 Qh7 Nd7 Qh5 Rh7 Ng3 e2 Qh6 e1R Ne4 Rg1 Ra2 Bd6 f8R Bg3+ Kg4 Nc3 f7+ Nb6+ Qe6 d1R Ra3 Qd5 Ra2 Nb5 Re8 Bd7 Na3 b1R f8N b2 Bf3 Rg2 Nd6 Nc8 Rd8 Rd3 Bh6 Rf1 Nac4 b1R Bd1 Rdf3 Bf4 Rbb2 Rg1 h1Q Nf5+ Bc6 Be5 h2 Nd7 Rb8 Ra4 Rbd2 Nf6 Rb6 Ra2 Rdd3 Rd2 R1f2 Re1 Qf1 Qf7 Qe6 Rd4 h1R Bf4 Na3 Bd6 Ba4 c6 Nb5 Be5 Qe7 Qe6 Qa3 Bd6 Qa2 Bb8 Nge7 g8B Rf7 Bh7 Ncd6 Bg6 Ne8 Bc7 Nc8 Bd6 Rhg1 Kh3 Rf4 Bb8 Rdf3 Qe3 Re2 Qb3 Re5 Bc2 Rc5 Rb1 Rd5 Bd1 Bf2+ Ng3 Re4 Bf4 Rh1+ Kg4 Rgh2 Nf5 Bh4 Kh5 Rg2 Bh2 Bg3 Kg5 Ree5 Kg4 Re4+ Kh3 Rg4 Bh5 Rgf4 Bg6 Rgxh2#
1n4B1/1r1rR1r1/3bN2n/2B2r1K/P3nb2/1nqk3P/1qR2bBR/NnQ5 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 h5 c4 hxg4 Qa4 b5 Qc2 b3 Qd3 b4 Qd2 Ba6 Qd1 Bb5 cxb5 Rh4 Kd2 Rh3 Ke1 Rh8 Kf2 Ke7 a4 Kf6 e4 Ke5 b6 d5 h3 f5 b7 g5 Rh2 g3+ Kf3 g4+ Ke2 d3+ Kd2 Kd4 e5 b2 e6 g2 e7 f3 e8B b3 Ra2 f4 Be2 g3 Qe1 f2 Bg6 f1N+ Kd1 f3 Rh1 f2 Bf4 d2 Bh7 Qa5 Be4 Nh6 Na3 b1N B2f3 b2 Ke2 d1R Bh5 Bd6 Kf3 Nfd2+ Ke2 f1R Ra1 Qc3 Bg4 Rg8 Bh5 Nb3 Rh2 Rg7 Bf7 Ra7 Ra2 Rd3 Bg5 Rf5 Be7 N1d2 Bg8 b1N Bf3 Ne4 Qc1 Qb2+ Nc2+ Kc3 Qf1 d4 Qc1 Rd1 Bf8 d3+ Ke3 d2 Na1+ Kb4 Ne2 g1B+ Rf2 g2 Nd4 Bh2 Ne6 g1B Bg2 Bf4+ Kf3 Re7 Re2 Bf2 Re3 Qc3 Rc2 Rg7 Be7 Kc4 Bf8 Nc6 b8R Rab7 Rd8 Nb8 Rc8+ Bc7 Bc5 Bcd6 Rc6 Rf1 Rc7 d1Q+ Re2 Qd4 Rc2 Qf6 Re7 Rd1 Rd3 B2e3 Rdd2 Qd4 Bh1 Qe5 Rh2 Kd3 Bg2 Bf2 Ng5 Nf7 Kg4 Nh6+ Kh5 Qb2 Re6 Qec3 Re8 Rff7 Ne6 Rfd7 Re7 Rg1 Bf3 R1g6 Bh1 Rf6 Bg2 Rf5+
2n2rB1/rN1nPQB1/R3R1b1/1R2bq2/N2r2n1/k2BP1b1/1q1K4/1qrq4 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 dxc4 h5 e5 fxe5 g6 Rh4 gxh5 Rh1 h4 d4 Ke7 g4 b5 a4 h5 g5 c5 e6 Kd6 g6 f5 g7 f4 e3 c3 a5 c4 d5 Kc5 a6 b3 d6 Kb4 d7 c2 a7 h3 Qd4 f3 Qd3 f2+ Ke2 b2 Rh2 c3 Ra6 h4 Qf5 Qa5 d8R Nd7 Nd2 b1Q Nc4 Bd6 Qf6 Qb2 Qf8 Ne7 g8Q Bg3 Nb6 Ka3 Qh7 b4 Qfg8 b3 Na4 Qf5 Qg4 Rf8 Rh1 h2 Qg5 h3 Qgh5 Bb7 Rb8 Nc8 e7 Be4 Bd2 c1B Nf3 c2 Nd4 Rd8 Rg1 h1N Bc3 h2 Ne6 Bd2 Bf6 Bc3 Bg7 Bce5 Kd2 Rf8 Bc4 f1R Nec5 Nf2 Bg8 h1R Qd1 Rh4 Rb5 Ng4 Nb7 Bd3 Qf3 Rc1 Qd1 Qf3 Rg2 Bg6 Rf2 Qe4 Rff6 Qf5 Rfb6 Qa1 Rd6 b2 Re6 b1Q Qh5 Qf3 Qf5 Qab2 Qf7 Qf5 Nbc5 Rb8 a8B Rb6 Bg2 Rb7 Be4 Ra7 Nb7 Nh2 Bd3 Rd4 Bh8 Ng4 Bg7 cxd1Q#
1r2Rb2/1q1P1b2/n1r1r1B1/PN2b1br/5q1R/1Kn2kb1/5Bb1/2NRB2Q w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 h5 b4 axb4 g4 hxg4 e3 e5 Be2 exf4 Bf1 fxe3 d4 Kd7 h4 Kd6 a4 f5 a5 b5 h5 g5 h6 c5 h7 b3 Nd2 b2 Ne2 b1R Bg2 c4 Nf4 b4 Bf1 b3 Ng2 b2 Rh3 f4 Nh4 e2 Qb3 g3 Ndf3 g2 Kd2 e1R Kc3 g1B Nd2 f3 Ra3 g4 Qd1 f2 Nhf3 g3 Bd3 f1B Kb4 c3 Rh5 c2 Ba6 g2 Bb7 Qf6 Nh4 Qf4 Kb3 Re6 Nhf3 Na6 Ra1 Ne7 Rh4 Bh2 Bc6 g1B Be8 Bg2 Bg6 Bf2 Qh1 Rg8 h8B Bfg3 Bf6 Rh8 Bg7 Rh5 Bh8 Kc7 d6+ Kc6 d7 Nd5 d8R Nc3 Re8 Kd5 Be5 Bd7 Bb8 Bb5 Ba7 Rc8 Bc5 Rcc6 Bb6 Kd6 d5 Be2 Nd4 Ke5 d6 Bc4+ Ka3 Bcd5 N2b3 Bc4 Bd2 c1B Be1 Bcd5 Nf5 Ke4 Bbf2 Bd2 Nc1 Kf3 Ne3 Bc4 Nd1 Qf7 Rd8 Be5 Rg4 Na2 Rc8 Re8 Nd3 Bhg3 Nc3 Bg5 Rh4 Qf4 Rd8 Re7 d7 Bf7 Re8 Ree6+ Nc5 N2b4 Nb3 Nd5+ Ka2 Rd1 Rc1 Rd4 Ra1 Rb4 Rd1 Rbb6 Nc1 Rb8 Bc5 b1Q+ Ka3 Re7 Bcf2 Qb7 Nb5 Ree6+ Kb3 Nc3
1rQRb3/1nPnb2N/2b5/kBNr4/2rbK1Pn/5q1n/1rr4B/BR2R3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 e3 dxe3 h5 b5 axb5 g6 Bc4 gxh5 Bf1 h4 Ke2 h5 Kd3 a5 g4 f5 b4 d5 c4 Kd7 b6 Kc6 c5 Kb5 c6 d4 b7 f3 c7 h3 Ne2 f4 Qe1 f2 Qd2 h4 Bb2 f3 Qc2 h2 Ra2 h3 Qb3 a4 Ra3 Qd5 Nc1 e2 Ba1 e1N+ Kd2+ d3 Ke3 Ne7 Bg7 Nd7 b8B Nf5+ Kf4 Nh4 Ra1 a3 Bg2 f1R Qc2 f2 Bb2 a2 Ba3 d2 Qb2 d1R Be4 Be7 Bf3 Ra4 Nb3 Nd3+ Ke3 Bb7 N1d2 Bc6 Rb1 a1B Ne4 N3c5 Nf6 Nb7 Ba7 Rb8 Nh7 Rg1 Qh8 f1B Kf4 Rg2 Bg1 Rc2 Nc5 Bd4 Bb2 Bd3 Qd8 Bg6 Qc8 Be8 Ba1 Kb6 b5 Rac4 Bg2 Ka5 b6 Rb2 Bf1 Rdc1 Bf2 R1c2 Bg3 Qg2 Rg1 h1N Bh2 Nf2 Bd3 Qh1 Rge1 Qg2 Bg1 h2 Be2 h1R Bh2 Rcb4 Ba6 Rbc4 Bb5 Bh8+ Ke3 Nh3 Kd3 Rf1 Ke3 Rf5 Kd3 Nd8 b7 Rd5+ Ke3 Bd4+ Kd3 Ra8 b8R Qg3+ Ke4 Nb7 Qd8 Nf8 Rc8 Rb8 Qd7 Qb3 Rd8 Qc3 Qc8 Nd7 Ba6 Qa3 Bb5 Qf3#
rK2bbB1/1R3n2/2k3q1/Rq4Qr/5r2/1NBbP1NP/rq1rq3/3BNr2 w - - 0 1 legal: proof: d4 e5 f4 exf4 b4 g5 h4 gxh4 b5 c5 b6 cxd4 e3 h3 Bb2 h2 Bc1 axb6 Kf2 b5 Ke1 b4 Kd2 h5 Bb5 h4 Ne2 h3 Na3 Na6 Ke1 Nc5 Rf1 h1B Nb1 h2 Rf2 Ne4 Ba6 Ng5 Bd3 Nh3 gxh3 Be4 Kd2 Bf3 Ke1 Bh1 Kd2 b5 a4 f5 c4 d5 a5 Kd7 a6 b3 a7 f3 c5 b4 Qc2 b2 Ra5 b3 Qc4 f4 Qc3 Qg5 Qc4 Nh6 Bf5+ Kc6 Kd3 Bd7 Ra3 Nf7 Ng3 Be8 Ra5 Rh5 Na3 b1Q+ Nc2 b2 Bd2 Qg6 Bc3 Bg2 Rf1 h1R Rg1 Qc1 Ne1 f2 Qb4 f1R Qb5+ Kc7 c6 f3 Be4 f2 Bf5 Kd6 c7 Rh2 c8B b1R Bd7 Rb4 Be6 Qb2 Be4 Bf3 Bg4 Bg2 Bd1 Bf3 Qc5+ Kd7 Qe7+ Kc6 Qh4 Bg4 Qg5 Bf5 Rh1 Rd8 a8N Ra4 Nb6 Ra8 Rg1 Ra2 Nd7 Rg2 Ne2 Rg4 Nc5 Rf4 Nb3 Bfd7 Bc2 Bf5 Kd2 d3 Ng3 Qa1 Bf3 Qb2 Bg4 Be4 Be6 d4 Rg2 Nd8 Bg8 Nf7 Kd1 d2 Ke2 d1R Rg1 Bf5 Rh1 Rg4 Kf3 Rd2 Bd1 d3 Rg1 Rc2 Rg2 d2 Rg1 Rga4 Rh1 Be4+ Kf4 Bd3+ Ne4 Nd6 Ke5 Rc4 Ng3 Rf4 Be2 d1Q Bg4 Qdb1 Bd1 Rd2 Rh2 Rg1 Rg2 f1Q Rf2 Rg4 Rf7 Qe2 Rb7 Rf4 Nc5 Rh1 Re7 Qb3 Rb7 Qa4 Nb3 Qb2 Ng2 Qh7 Ne1 Qb5+ Ke6 Bg7 Ke7 Rhf1 Ke6 Qg6+ Ke7 Ra6 Kd8 Nf7+ Kc8 Bf8 Kb8 Ra8+
k1Nr1r2/3Rbr2/1P1n2B1/B2b4/2r2R1r/1rNPp2n/1Q1r1R2/K2qbB2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 dxc4 Rh3 f5 Rh1 b5 axb5 axb4 Qf3 fxe4 Qg4 Bf5 Qd1 Bc8 f4 Kd7 g4 h5 b6 Kc6 f5 Kb7 g5 e5 f6 c5 g6 h3 f7 e3 g7 e4 Na3 c3 Nc4 c2 Ra4 e2 Bg2 h2 Na3 c4 Nb1 c3 Bf3 h4 Bh5 h3 Ba3 c1R Ra5 c2 Bb2 b3 Na3 Nd7 Rb5 Ne7 g8B Nf6 Bc3 b2 Rg5 b1R Bb2 Ne8 Ra5 Nd6 Rd5 Be6 Bc3 Rb3 Nc4 Ng6 Ba5 Nf4 Bg6 Be7 f8R Rh4 Rd3 Bd5 Rf5 Rcb1 Qc1 R1b2 B8f7 Ra2 Qb2 Rh8 Rf3 Rf8 Rf2 Rc8 Be8 Ka8 Bb5 Qd7 Rf7 Rcd8 Ba6 Ne6 R7f4 Ng5 d3 c1R+ Kd2 Qa4 Bc8 Rcc3 Bg4 e1B+ Kd1 e3 Ne2 Rc2 Nc3 Rf7 Rg1 h1R Be2 h2 Bf1 Nh3 Rg3 Rd2+ Kc1 Rg1 Kb1 h1R Rg5 Rg4 Rh5 Raa3 Rh7 Rh4 Rg7 Rhh8 Rh7 Rhf8 Rg7 Rb4 Rh7 Rab3 Rg7 Nb5 Nd6 Rc4 Nc8 Nd6 Rh7 Qd7 Ka1 Qg4 Rh5 Ng1 Re5 Rh4 Ree4 Nh3 Re6 Ne4 Rd6 Qh5 Rd7 Nd6 Qa2 Qg4 Qb2 Qd1+
1brb2qB/r1P1n3/q4qP1/RRBn1Q2/2B2N1N/1nNp4/rk6/2b1r2K w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 h4 g5 a4 gxh4 Bc4 b5 Bf1 b3 Bd3 b4 Be2 Ba6 Bf1 Bb5 axb5 Bh6 Nd2 Bg7 Nb1 Bf8 c4 Kf7 f4 Kf6 Kf2 d5 g4 e5 Kg2 h5 b6 h3+ Kh2 d3 c5 e3 b7 e2 c6 e1B f5 h4 Nf3 d2 Nc3 b2 Kg1 b1N Rh2 b3 Qc2 d1R Ra6 d4 Qf2 b2 Nd2 e4 g5+ Ke5 f6 e3 g6 d3 f7 Kd4 Qf3 e2 Qg2 Qf6 Ra1 Bh6 f8N Na6 b8B Bg3 Nd7 e1B Bf4 Nb4 Ra4 Ne7 Nce4 Rhc8 Qh1 Ra7 Ra6 Nbd5 Bg5 Bb8 c7 Bg3 Rf2 Re1 Qf3 h2+ Kh1 Be5 Nb6 Re2 Ng3 Kc3 Nde4+ Kb3 Qf4 Nd2 Qf5 b1R Bb2 Rbe1 Ra5 Kc2 Rb5 Nb3 Be3 Bef4 Nc3 Bhg5 Bc5 Bc1 Rf4 Rd2 Ra4 Rf2 Nce4 Kb1 Be5 Ra2 Nc3+ Ka1 Raa5 Kb2 Nd7 Qa6 Bh8 Qf6 Nh5 Qa6 Ne5 Bf6 Kg2 h1Q+ Kf2 h3 Nf3 h2 Bh3 Bfg5 Nf4 Qf1+ Kg3 h1Q Nh4 Qe4 Kh2 Qee6 Bg2 Qg8 Be4 Ne3 Bd5 Qf3 Bc4 N3d5 Qd7 Nc6 Qf5 Bd8 Nh3 Nce7 Nf4 Qh5 Kg2 Qg5+ Kh2 Qgf6 Kg2 Re2+ Kh1 Re1+
2qq4/p3Pk2/1PN2n1B/1n2B1BN/7r/qq1q1qr1/1q1N4/b1Kb1RRQ w - - 0 1 illegal: No possible last move, all moves rejected
1q6/Qr1N2b1/r1Kb2bk/1B1N3N/r2BRP1p/3Pr1r1/5Rnq/2n3Rr w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 dxc4 Rh3 f5 Rh1 b5 axb5 axb4 Qf3 fxe4 Qg4 Bf5 Qd1 Bc8 Ke2 Kf7 Ke3 Kg7 f4 h5 g4 e5 g5 c5 b6 b3 g6 c3 d3 h3 b7 c4 Qg4 h4 Qf5 b2 Qe6 c2 Qc6 c3 Qf6+ Kh6 Qf5 h2 g7 Nd7 b8N Ra5 Bd2 c1B Ra2 c2 Bg2 Ne7 g8R Nc5 Bf1 Nb3 Na3 b1R Nh3 Bb2 Nf2 c1R Nc2 Nd5+ Ke2 e3 Kf3 e4+ Ke2 Bbg7 Ra4 Bd6 Bg2 Rg1 Qf7 Bf5 Nb4 Bg6 Nd7 Qb8 Bc3 Rh7 Qe7 Ra1 Bd4 Ra3 Bh3 Rg3 Rg1 h1Q Rg2 Qg1 Nh1 Qh2 Rf2 Ra1 Be6 Ra3 Bf7 Ra1 Be8 Nc1+ Kd1 e2+ Kc2 Ne3+ Kc3 e1R Nd5 Ng2 Kc4 e3 Rb4 Rf3 Ng3 e2 Nh5 Rh1 Qe3 e1R Qe7 Bc7 Qf7 R5a4 Kc5 Rg3 Kc6 Ree3 Qe7 Ra5 Qc5 R1a4 Qa7 Na2 Be5 Bd6 Re4 Nc1 Bd4 Bf6 Rg7 Bfe5 Rg8 Bg7 Re5 Bgf8 Nc5 Be4 Bg6 Rb7 Be8 Rh3 Rg3 Ne1 Rg1 Bf5 Re4 Bg7 Bd7 Ng2 Bc8 Rd7 Ba6 Rb7 Bb5 Rhg3 Nd7 Bh7 Nc3 Bg6 Nd5 Ra6+
1b5R/2rR2n1/2P1Bn1K/3P4/nB2R3/1NQqr2b/1nNpb2b/2N2rkn w - - 0 1 legal: proof: d4 b5 h4 d5 f4 c5 a4 g5 axb5 gxh4 e4 dxe4 d5 e5 Qd3 exf4 Qd4 cxd4 Kf2 Kd7 b4 Kd6 g4 Ke5 c4 f5 b6 h5 b5 a5 g5 d3 g6 Kd4 g7 e3+ Kf3 d2 b7 h3 b6 h2 c5 e2 c6 e1N+ Kf2 a4 Bd3 a3 Bb5 a2 Nc3 h4 Nd1 h3 Ke2 f3+ Kf2 f4 Bc4 Qe8 Bf1 Bd6 Bb5 Rh7 Ne3 Qe4 Nc4 Nf6 g8N Na6 b8Q Qd3 b7 Rc7 Qa7+ Nc5 Qa5 Na4 b8R Bd7 Rf8 Re8 Nh6 Re3 Rh8 Ke4 Rb1 a1B Ba3 Bae5 Ne2 Bf5 Rf1 h1B Nc1 h2 Qb4 Bh3 Qc3 B1g2 Rg1 Bf1 Rg7 Be2 Bb4 h1N+ Kg1 f2+ Kh2 Kf3 Rd7 f1R Nf5 Kf2 Nd4 Rb7 Na3 Bb8 Ba6 Rc7 Ndb3 Bd6 Bc8 f3+ Qe5 Qf5 Ra1 Nd3 Nc2 Ndb2 Ra3 Qd3 Ra2 Nc3 Ra5 Nca4 Rc5 Ng3 Rc4 Ngh5 Rg4 Ng7 Re4 Rg1 Qg3+ Kf1 Qe5 Rh1+ Kg3 f2+ Kf4 Kg1 Kg5 f1N Qc3 Bh2 Kh6 Ng3 Bf8 Kf2 Bb4 Rf1 Rf7 Kg2 Be6 Kg1 Rd7 Nh1
2R1NQB1/7q/Rq3n2/b2n1RNn/2BrnnP1/Kr5r/1p1k1B1P/4b1r1 w - - 0 1 illegal: No possible last move, all moves rejected
1N4R1/rn2P3/Q1qr1r2/1nbn1kr1/1N2qb2/1R4B1/pP1Kn3/4nBNR w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 h3 fxg3 Qd3 g5 Qd2 g4 Qd1 g2 Nc3 g3 Nb1 Bb7 Rh2 Bf3 Rh1 Bg4 hxg4 Qe7 Rh2 Qg5 Rh1 Qd8 e4 Ke7 c4 Ke6 g5 d5 c5 h5 g6 f5 e5 a5 c6 a3 c7 a2 c8N f4 g7 d3 Qd2 a4 Ne2 g1N Nd6 d4 Qa5 h4 Nb5 g2 Na7 d2+ Kd1 a3 Qc7 h3 Qc2 h2 Qc5 f3 Qc8+ Nd7 Qb7 f2 Qe4 Qc8 Nec3 Bd6 Bb5 f1R+ Qe1 Ne2 Bc6 g1B Ba4 Ngf6 g8R Kf5 e6 Rh5 e7 Be5 Kc2 d1R Nc6 d3+ Kb3 d2 Kc2 Rg5 Ne4 Bc5 Nb4 Qc6 Nbc3 Nd5 Nf6 Ra7 Bb5 Rf3 Rg1 h1Q Qf1 Rf2 Rb1 a1N+ Kd3 a2 Rg3 Nc2 Ra1 Nf8 Nd7 Ne6 Nb8 Nd8 Rh3 Nb7 Re3 Ng3 Ne2 Qf3 Ng1 Ne1+ Kc4 Ne2 Kb3 Ng2 Kc2 Qe4+ Rd3 Re1 Bc4 d1N Bf4 N1c3 Kd2 Nb5 Rb3 Rb1 Bh2 Ne1 Bg3 Rc1 Bd3 Rc4 Rb1 Rd4 Ra3 Nef4+ Kd1 Ne3+ Kc1 Nc7 Be2 Rd6 Bg4+ Kf6 Rb3 Ned5 Qa6 Nc2 Nf3 Ne2+ Kd2 Nb5 Rh1 Ne1 Ng1 Rff5 Bf3 Ke6 Bg2 Rf6 Bf1 Kf5 Rf8 Kg4 Rfh8 Kf5 Rg8 Bf4+
5N2/pN4rP/2K2P1n/1B1nBQbB/1R2r1nR/q3rn1N/2bq4/2k1nr2 w - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 g4 b5 axb5 h5 Qd3 hxg4 Qc3 dxc3 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kd5 e5 b4 g5 h4 c2 f4 e3 c5 e2 c6 e1R c7 e4 b6 g3 h5 g4 b5 e3 b7 e2 h6 g2 h7 g3 b6 Na6 b8Q Nh6 b7 Be7 Ba3 c1Q Nc3 Rg8 Rh5+ Bg5 Bb2 Nb4+ Kc5 d5 Ra6 d4 Rh2 d3 Nh3 g1N Ba1 g2 Rh1 d2 Ra3 d1N Rb3 Nd5 Kc6 Nf2 Rb4 Qa3 Nb5 Rg7 Be5 Nf3 Nd6+ Kg4 Rh2 Bf5 Qc8 g1R b8N Kg3 Rh1 Nfg4 Nd7 Bc2 Nf8 Rb8 Qf5 Rb7 c8B Rbe7 Bg2 Rgf1 Ba6 Re8 Nb7 Ree7 Bd6 Re4 Bb5 Re3 Be5 Qda5 Ng1 Kf2 Rh4 Re4 Bh1 Ke3 Nh3 Kd2 Bg2 Kc1 Bh1 Rd1 Bg2 e1N Bh1 Nfh2 Bf3 Rd3 Bd1 Rde3 Bde2 Nf2 Bh5 Nhf3 Qg4 Nc3 f5 Nd5 f6 Qd8 Qd7 Nfg4 Qf5 Qda5 Ra4 Q5c3+ Rc4 Qd4 Rb4 Qd2
3qN1r1/2P4R/2rnb3/BbRpN1b1/n1nr2P1/k1n2q2/B1K3B1/rQ4N1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 Ke7 e4 Kd6 c4 Kc5 g4 f5 e5 h5 b6 d5 e6 d3 b7 h3 e7 b3 e8B Kb4 c5 h4 c6 b2 c7 h2 Bb5 f3 Ra7 f2 Qe1 h3 Qe6 f4 Nf3 Be7 Ng1 f3 Kd1 d2 Bd7 Nh6 Qc6 Rg8 Ra3 Bg5 Be2 f1B Rd3 f2 Ra3 Na6 b8N Nf7 Rc3 Nd6 Na3 b1N Nb5 Nc5 Bc4 Na4 Kc2 d1R Be3 Ra6 Qb6 Rd4 Bf5 Be6 Be4 Be2 Bd2 f1N Be1 Nfd2 Ba2 N2c4 Bg2 Bf1 Qb7 Rc6 Nd7 Be2 Ne5 Bf1 Rd3+ Nbc3 Rd1 Be2 Rc1 Bf1 Na7+ Ka3 Nc8 Na5 Qb1 Bb5 Ne7 Nac4 Nf5 Ne2 Ba5 Nec3 Ne2 Rd1 Ng7 Rd4 Rhg1 h1Q Ne8 h2 Rge1 Qf1 Ng1 h1R Re3 Rf4 Rh3 Rd4 Rh7 Qf3 Nh3 Nde4 Qa1 Nd1 Kb1 Nce3 Rc5 Nc4 Kc2 Ndc3 Qd1 Re1 Ng1 Ned6 Qa1 Re3 Qe1 Red3 Qf1 Rd1 Qe1 Ra1 Qc1+ Nab2 Qb1 Nba4
1B1q2b1/b1P5/q2pK2k/3R1P1q/3Q1Nbr/rNq4r/N3Rb2/1nn1BR2 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 h4 gxh4 b4 a6 b6 Bg7 b7 Nh6 b5 Bf8 b6 Ng8 Bb5 axb5 Kd2 Kf7 g4 Kg6 f4 e5 c4 h5 c5 b4 g5 h3 c6 h4 c7 e3+ Kd3 h2 Ke4 b3 Kd5 b2 Qa4 d3 Nd2 b1B Qd1 h3 Bb2 e4 Qa4 e2 Bg7 e1Q Nc4 d2 Qa2 d1Q+ Ke5 e3 Qf2 e2 Ra4 Nf6 Rb4 Bc5 Ne3 Rh4 Rd4 Qc3 Nd5 e1B Nb4 Qdd3 Na2 Ra3 Ne2 Ne4 Rf1 Na6 b8B h1R b7 h2 Kd5 Kh5 g6 d6 Bh6 Bc2 g7 Nd2 g8R Ba7 Re8 Nb1 Bg5 Rh3 Bh4 Nc5 Qe3 Bg4 f5 Bf2 Qe4 Qa6 Nf4+ Kh6 Qd3 Ba4 Re2 Nb3 Ke6 Nc1 Rd5 Be8 Qd4 Bg6 Bg3 Bg1 Be1 Bh7 Qe4 Bgf2 Qd4 Bc5 Ba7 Bb6 b8N Rh4 Nc6 Bc5 Bb8 Ba7 Re4 Rh5 Ne2 Rg1 Ncb4 h1Q Nc6 Rg3 Nf4 Qhh4 Ree5 Rh3 Re2 Qhg5 Na5 R5h4 Nb3 Qh5 Qd2 Rg3 Qd1 Rgh3 Qd4 Bg8#
2q4N/2p4R/1qn1B1P1/1nbq2r1/1B2R2Q/NK1Rbqn1/1P1rn3/1B1rk3 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g3 fxg3 h3 g2 Ra2 g5 Ra1 g4 Na3 g3 Nb1 Bg4 hxg4 Bc5 Na3 Bb4 Nb1 Bf8 d4 Kd7 Kd2 Kc6 Kc2 Kd5 g5 Ke4 e3 f5 g6 a5 d5 h5 d6 a3 d7 h4 Qe2 a4 Nf3 g1Q Ne5 f4 Nf3 g2 Qf2 h3 Rh2 c3 Ra2 Nf6 Bc4 Rh5 Qf1 Rg5 Qd1 Nc6 Ne5 f3 Nd3 f2 Bb3 f1N Bc4 Nd5 Bb3 Ng3 Ra1 a2 Rh1 a3 Ba4 h2 Ne5 Bc5 Bd2 Qc8 Kb3 c2 d8R c1B Qe1 Nc3 Nf7 Kf3 e4 Nb5 Bb4 B1e3 e5 Qf2 e6 g1N e7 N1e2 e8B Qf1 Qd2 Kf2 Rd3 Qfh3 Re1 h1Q Nh8 Qhd7 Qc1 Qf3 Qc4 Qdd5 Bf7 Ra5 Be6 Ra6 Nd2 Rb6 Rad1 a1R Nb1 a2 Na3 Ra6 R1d2 Rd1 Rh1 a1Q Rh7 Kf1 Rd4 Qc1 Re4 Ke1 Rd3+ Qd2 Ka2 Qc3 Bc2 Rd2 Bb1 Qcd4 Kb3 Ra4 Bc2 Qdf6 Nb1 Ra1 Na3 Rd1 Bb1 Nb8 Bf7 Qb6 Be6 Qdd7 Qd4 Nc6 Qf6 Qd4 Qf4 Qdd8 Qh4 Qd5+
4bKN1/P1rP4/1Bb2p2/1b1q1krq/n3N1r1/1b1Q4/n2q2RB/BR2r1R1 w - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 f4 exf4 g3 d5 h5 dxc4 Bh3 Bc5 Bf5 Be7 Bg6 Bh4 gxh4 hxg6 Kf2 Kd7 Kf3 Ke6 Kg4 c5 e4 b5 d4 g5 a4 c3 h6 b3 Kh5 b2 h7 b4 e5 c4 d5+ Kf5 d6 g4 a5 g5 e6 b3 e7 c2 e8R g3 a6 f3 a7 g2 Qd4 c3 Re6 f2 Rg6 f1B Nh3 g1R Rh6 f6 Bf4 c1R Bd2 g4 Bg5 g3 Bd2 c2 Nf4 g2 Rg6 Nd7 Nd5 Bb7 Nbc3 b1B Ne4 b2 Qd3 Nb6 Bc3 Ne7 Kh6 Re1 Kg7 c1Q h5 Rc8 h6 Ba2 Rb1 Qd2 d7 Qe8 Be5 Na4 Rh2 Rf8 h8B Nc6 h7 Rc7 Rg3 Qh5 Ne7+ Ke6 Bd4 Bb3 Ng8 Kf5 Rg4 Re8 Rg6 Re7+ Kf8 Nb4 Bg7 Bc6 h8B Na2 Bh6 Rg7 Bf4 Be2 Rg4 Rg5 Bg7 Bf1 Bh6 Be2 Rd1 b1B Ba1 B1c2 Rb1 Bf7 Qg3 Beb5 Qd3 Bcb3 Rh1 Be8 Bh2 Rgf1 Rg3 g1Q Rg2 Qd4 Rhg1 Rg4 Be3 Qd5 Bc5 Rff4 Be3 Rg5 Bb6 Rfg4
1K4N1/1qR1Brk1/1Q5R/1pR5/n1n3bP/b3B1Nb/nqP1q1q1/q4Bb1 w - - 0 1 legal: proof: b4 a5 g4 b5 f4 h5 d4 hxg4 a4 e5 Qd2 exf4 Qd1 Ra6 d5 axb4 a5 Rb6 d6 cxd6 axb6 d5 Ra5 d4 Ra6 Ke7 Ra1 Ke8 Kf2 d5 h4 f5 e4 Kf7 b7 g5 e5 b3 e6+ Kg7 e7 g3+ Kf3 g4+ Ke2 g2 Kd3 g3 e8R f3 Nh3 g1B Bg5 f2 Bd2 f4 Re3 f3 Be2 f1N Ng5 g2 Ra3 b2 Ra7 f2 Bc3 Na6 b8B+ Qd7 Be1 Rh7 Bf3 Ne7 Re6 Qb7 Rd6 Bg4 Nd2 b1Q Nf7 Ne3 Nf1 Nc6 Bb4 Qb2 Be2 Nc4 Ng3 f1B Rh6 Bc5 Bd2 Ba3 Qe1 Rh8 Be3 Rf8 Ne5 Rf7 Qf2 Nd6 Ng6 Ncb4+ Kd2 d3 Rh3 d4 Ne7 Nc5 Ng8 Na2 Bc7 Nc8 Bd8 Na4 Bdg5 Nd6 Be7 Qa6 Rc7 Qc8 Qf5 Qb7 Qc5 Nc4+ Kd1 Bh2 Qb6 g1Q Ke1 Bg2+ Bf1 Qh1 Rc5 Bg1 Rc7 Bd7 Rc5 d2+ Ke2 Bg4+ Kd3 d1Q+ Bd2 Qda1 Be3 Bd5 Rc7 Bde6 Rc5 Qc8 Rc7 Qh2 Ke4 d3 Rc5 Bef5+ Kd5 d2 Rc7 d1Q+ Kc6 Qcd7+ Kb7 Qde2 Kb8 Qh1 Rh2 Qdc6 Rf2 Qhg2 Rf3 Bd7 Rf5 Bh3 Re5 Bdg4 Rc5 Qb7+
2rQ4/RNbNN1Kp/q1R2P2/1B5r/5kn1/1n6/Pqq1r2q/qr2n1BR w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 h4 g5 c4 gxh4 Bh6 b5 Be3 b3 Bc1 b4 Qg4 Ba6 Qd1 Bb5 cxb5 Ra3 Ke2 Ra5 Ke1 Ra8 Kd2 Kf7 f4 Kg6 g4 e5 b6 d5 b7 d3 Ke3 d2 f5+ Kg5 f6 d4+ Kf2 d3 Ke3 b2 Ne2 h3 Rh2 b3 Qe1 d1Q Ng1 d2 Rg2 h2 Ne2 h1Q Na3 b1R Qf2 b2 Rg3 Qc8 Nf4 Nd7 b8N Nc5 Bb5 Ra5 Nc4 Qh2 Nd5 Nb3 Ne7 Qc2 Nd6 d1Q Nd7 Nh6 Qd2 Qa6 Nb7 Qf1 Rg1 Rg8 Rh1 Qfg2 Nc6 Bd6 Ne7 Bc7 Qd5 Rc8 Bd2 Rf1 Rc1 b1Q Qd3 Qcb2 Rc6 Q1a1 Bb4 Rc1 Bc5 Qgc2 Bd4 Rb1 Qd1 Kh4 g5 Kg3 Qd2 Kg4 g6 Kg5 g7 Kg4 Nd5 Kg5 g8R+ Kf5 Rg2 Ng4+ Ke2 e3 Kf3 e2 Bg1 e1R Re2 Ne3 Ne7+ Kg5 Qd6 Ng4 Re4 Re2 Ra4 Qh5 Kg3 e4 Ra3 e3 Kf3 Qcc3 Ke4 Qbc2+ Kd5 Q3b2 Ke6 Qh2 Qd2 Kf4 Kf7 Nh6+ Kg7 Ng4 Bd3 Rh5 Bb5 Rg2 Qd5 e2 Qg8 e1N Qd8 Re2 Ra5 Qb6 Ra7 Qa6
1n2Q2r/1kb4R/Nrb2r1B/2Pp4/B2K2rR/r2R1nb1/4PNb1/2Nn1b2 w - - 0 1 illegal: No possible last move
b1nb2r1/2rRB1Rp/N2B1b2/2Nk1r2/rPN3Q1/5R2/p1rP4/q2nKn2 w - - 0 1 legal: proof: f4 d5 h4 g5 c4 dxc4 b4 gxh4 e3 e5 Bd3 exf4 Bc2 b5 a4 Bf5 axb5 Bc8 Bb3 cxb3 g4 Ke7 b6 Kd6 g5 f5 b7 a5 e4 c5 e5+ Kd5 e6 c4 e7 f3 e8N b2 g6 f2+ Kf1 h3 g7 f4 Ra3 h2 Rb3 c3 Qc2 a4 Qd1 a3 Nh3 c2 Qe2 a2 Rg1 h1R Na3 b1R Qd1 Rb2 Rg3 Nc6 b8B Bb7 Qe1 Nh6 g8R Nf5 Qe3 Ra4 Bd6 Ba8 Nc4 Qf6 R3g5 Ne7 Ne5 Nc8 Nc4 Be7 Qe2 Bd8 Rf8 Rg8 Qg4 Qe5 Rg7 Ne3+ Ke2 f1N Ng5 f3+ Ke1 Nd1+ Ne4 Qd4 Nc5 f2+ Ke2 Rh5 Rf3 Rf5 Rg2 Rf7 Rg1 Rc7 Rd7 Rb3 Rgg3 Qa1 Bb2 c1B Bf6 Rb2 Bfe7 Rc2 Rg1 Bb2 Rg2 Rca7 Rg1 Bf6 Nc7+ Kc6 N7a6 Rc7 Rgg3 Kd5 Rg2 Nh2 Rg1 f1R Rg2 Rf2+ Ke1 Nf1 Qf4 Qc1 Rg7 Qb1 Qg4 Qa1 Rc3 Rf4 Rf3 Rf5
1Qn1R1K1/1rB2p2/N1n3p1/rRqBP1b1/1r2b3/Pr6/qnN1r2k/1R3B2 w - - 0 1 legal: proof: f4 a5 d4 b5 b4 axb4 g4 c5 f5 h5 f6 hxg4 Qd2 exf6 Qd3 b3 Nd2 c4 Bb2 f5 Ngf3 b4 Bc1 Bd6 Ng1 Be5 dxe5 b2 Qb3 cxb3 Nb1 Ke7 Bg2 Kf8 Bf1 Ke8 Kf2 Ke7 Ke3 Ke6 Kf4 d5 h4 g6 c4 d4 e4 d3 h5 d2 h6 d1N c5 g3 c6 g2 c7 Qf8 Kg5 f4 a3 f3 h7 f2 Be2 f1Q Bd2 Ra5 Bc3 Ne7 Rh4 Nbc6 Rh5 Qf2 Bf1 Bb7 Nf3 g1B Ne1 Nc8 Nc2 Q8c5 Kh6 Re8 Nd2 b1R Kg7 b2 h8Q b3 Qf8 Qh2 Kg8 Be3 Bd4 Bh6 Be3 Bg5 Bf4 Ne3 Bg3 Nc4 Bf4 Re7 Bg3 Re1 Rb1 Re2 Qe8 N8d6 Qb8 Nc8 Nb4 Qg2 Na6 Qgf2 Nf3 Rd7 Rc1 b1R Ne1 b2 Nc2 Rd3 Bh2 Rb3 Rd1 Ra1 Bf4 b1R Bg3 R1b2 Rb1 Rb4 Bf4 R2b3 Bg3 Nb2 Bh2 Ke7 e6 Kf6 e7 Ba8 e8R Ra2 Bd6 Qh2 e5+ Kf5 Rh8 Kg4 Rh4+ Kg3 Re4 Rb6 Rb4 Rb7 Rb5 Qhf2 Kg7 Kh2 Kg8 N8a7 c8B Rb4 Be6 Nc8 Bd5 Ra1 Rc1 Rb1 Bh1 Qg2 Bc7 Qgd5 Rd1 Qa2 Re1 Na4 Bf3 R1b3 Rb1 Nb2 Bd5 Nd4 Ne3 Rb6 Bc4 Be4 Nc2 Rb7 Bd5 Nc6
1Rrq4/Nqn2kBP/N1P3p1/2B2rbp/Qq2b3/3BN1Rn/1q4br/3K4 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 h4 Bc5 g5 Bf8 g6 hxg6 h5 Be7 Nf3 Ba3 Ng1 Bf8 h6 Ba3 Qd3 Bd6 Qf5 Bf8 Qh5 gxh5 b4 f5 c4 a5 e4 d5 h7 a4 c5 f3 e5 f4 b6 d3 e6 d2+ Kd1 f2 b5 d4 c6 g6 b7 f3 e7 a3 b6 a2 Bb5 f1R+ Kc2 d1Q+ Kb2 d3 Rh4 f2 Nf3 d2 Nd4 Na6 b8B Qe1 Kc2 Bf5+ Bd3 Bh6 b7 Be4 Bb2 Nf6 Rh3 Nc7 Nb5 Nfd5 N1c3 Kf7 Ba7 Nf4 b8N Bg5 Rb1 a1Q Rg3 Nh3 Bc5 Ra2 Nd5 Qc8 Ne3 Qb7 Na7 Rg8 Na6 Rc8 Kc3 d1Q+ Kc4 Na8 Bg7 Nc7 Rb6 Qdd2 Kb3 Qd4 Rb4 Qd8 Rb5 Rg1 Rb4 f1B Rb6 Ra5 Rb5 Qb4+ Kc2 Qec3+ Kd1 Rh1 Rb6 Rh2 Rb5 Bfg2 Rb6 Ke6 e8Q+ Qe7 Qd7+ Kf7 Qd4 Qd8 Rb5 Qbb2 Qa4 Qcb4 Rb6 Qa8 Rb8 Qab7 Bcf8 Rd5 Bc5 Rf5
2q5/5P2/BB1K4/2QbbRN1/rN1NRp1k/r1P1n1q1/n1p5/1n2qRrr w - - 0 1 illegal: No proof kernel
4kN1r/1pqq1p1P/bRP5/1nBBr1RK/q3rn2/N2N4/b2R3Q/r3n3 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nd2 exf6 Nb1 f5 Qd2 f4 Qd3 Qe7 Qd1 Qd8 h4 gxh4 g3 h3 Qd2 h2 Qd3 Qf6 Qd1 Qd8 Nh3 h5 Rg1 h4 Rh1 Be7 Ng1 h3 Nc3 Rh7 Nb1 Bh4 gxh4 Rh8 Kf2 d5 Kf3 d3 e4 d4 c4 b3 a4 b2 h5 d2 h6 d3 e5 Qb6 c5 Bf5 a5 Nd7 h7 Ngf6 e6 Nd5 a6 Qc7 e7 Be6 Qc2 d1Q+ Ne2 d2 Rg1 h1R a7 h2 Na3 b1N Rg5 Nbc3 Ra2 Nb5 Bg2 Re1 Bb2 h1Q Bd4 Qh4 Bh1 Rd8 a8R Rc8 Ra6 Ne5+ Kg2 Ra8 Rb6 Ra4 Nc1 Nf3 Nd3 Re5 Bg1 Rae4 Rb2 Kd7 e8N Ke7 c6 Ne1+ Kf1 f3 Ng7 Qg4 Kf2 Nf4 Ra2 Qf5 Kg3 f2 Kh4 f1B Bc5+ Kd8 Rb2 Ba2 Ne6+ Ke8 Nf8 Qfd7 Bf3 Qa1 Bh1 d1R Qh2 Rc1 Rd2 Qad4 Bg2 Qa4 Bf3 Rd4 Bd5 Ra1 Qg3 Rde4 Qh2 Na7 Nc1 Ba6 Nd3 Qe7 Kg4 Nb5 Kh4 Qed8 Kg4 Qdd7+ Kh4 Nfg2+ Kh5 Nf4+
nBrN1nR1/p2B3r/R2N2B1/3k2b1/3p1n2/K1PqQr2/4P1Rn/1b1n3r w - - 0 1 legal: proof: d4 e5 f4 exf4 a4 c5 h4 cxd4 h5 b5 axb5 d3 h6 gxh6 c3 h5 Qb3 h4 Qc2 dxc2 Kd2 Ke7 g4 Ke6 b4 h5 b6 d5 b5 f5 b7 h3 b6 f3 g5 f4 g6 h2 g7 h4 Bb2 c1N Kc2 h3 Ra4 f2 Ra6 f3 Ra3 Be7 Ra6 Rh7 Ba3 Nf6 Kb2 Nbd7 b8Q Ne8 Bd6 Bg5 b7 Nf8 Na3 Nc7 Nc4 Nd3+ Ka3 Nf4 Bg2 f1R g8B+ Rf7 Bh7 f2 Bb1 Rh7 Nf3 Bd7 Rg1 h1R Nfe5 h2 Bd3 Ba4 Nf7 Bc2 Bde4 Bb1 Bg6 Qd7 Qd8 Rc8 b8R Na8 Qb6 d4 Bh3+ Kd5 Rg2 Qf5 Nd8 Qd3 Bd7 N8e6 Rb7 Nf8 Bb8 Rhg1 Bg4 h1N Qb4 Rd1 Rf7 f1N Rg7 Nh2 Bd7 Nf2 Rg8 Rdf1 Qe7 Nd1 Nd6 Rf3 Qe3 Rh1
6N1/p2qn3/Qr1krRKP/2R2Bb1/1p1Pn1B1/7r/2rNNn2/B2n1br1 w - - 0 1 legal: proof: b4 d5 a4 b5 g4 h5 c4 hxg4 cxd5 e5 f4 exf4 a5 Bxb4 a6 Bf8 Qb3 b4 Qc2 Bxa6 Qd1 Bc8 Kf2 Kd7 d4 f5 e4 g5 h4 c5 d6 g3+ Kf3 c4 h5 g4+ Kg2 c3 e5 c2 Bd3 f3+ Kf1 f4 Qe2 f2 Kg2 f1R Qf2 Nc6 Rh3 Nf6 Ra6 Be7 Qe1 Rb8 Ne2 Rb6 Bb2 c1R Ba1 Ne4 Nd2 Rc2 h6 Re8 Ra5 Ba6 Rc5 Rf3 Qf1 Bg5 Rh1 Ke6 d7 Ne7 Rh5 Qc8 d8N+ Kd7 e6+ Kd6 Nc6 Qd7 Rf5 Re3 Rf6 f3+ Kh1 g2+ Kh2 g3+ Kh3 g1N+ Kg4 Rc4 Bb1 f2 Bc2 g2 Bd3 Bh4 Rc5 Bg5 Kh5 Nh3 Bb1 g1R Bc2 Nc3 Bf5 Nd1 Bg4 Rc2 Bf5 Nd5 Ne7 Rb3 Ng8 Ne7 Qg2 f1N Qb7 Bd3 Qa6 Nhf2 Bg4 Nc6 Bf5 Ng3+ Kg6 Nge4 Bg4 Bb5 Bf5 Rh3 e7+ Kc7 Nc3 Bf1 Ne2 Rd8 e8B Rc8 Bf7 Re8 B7e6 Kd6 Bg4 Re7 Bef5+ Re6 Qa4 Rhh1 Qb5 Rh3 Qa6 Ne7+
3bR1Qr/1N1b4/Bn4Pp/K3B3/rr2q3/1P1Nbp1n/Rn4k1/r1R1bN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Ke7 Kd2 Kd6 Kc3 Kd5 g4 Ke4 e3 c5 g5 f5 b3 a5 d5 h3 d6 a4 g6 h6 d7 a3 b6 f3 b7 a2 Be2 h2 Nh3 f2 Ba3 f1R Qd6 f4 Qa6 Qe7 d8N Nc6 b8Q Bd7 Qac8 Nf6 Qb6 Na5 Qbb7+ Nd5+ Kb2 c3+ Kc2 c4 Qa7 Nb6 Bd3+ Kf3 e4 Kg2 e5 f3 e6 Re1 Qca6 Re4 Re1 h1N Bc1 Nf2 Nd2 Bg7 Q6b7 Bf6 Qbb8 Qb4 Nb7 Bd8 e7 Rf4 Ng1 Nh3 e8R Qe7 Qa6 Qe4 Bb2 Rg4 Rac1 a1R Nf1 Rh4 Ne2 Rf4 Kd1 c2+ Kd2 Ra3 Ra1 c1B+ Kc3 Be3 Kb4 c3+ Qc4 c2 Be5 c1B Ra2 Bb2 Nc1 Rg4 Qd4 Nac4 Be2 R8a7 Nd3 Bbc1 Qc8 Nb2 Qcc4 Bf2 Qg8 Bce3 Rc1 Be1+ Kc5 Be6 Kb5 R7a4 Qb4 Rf4 Qa5 Bd7+ Ka6 Rb4 Qa4 Rf6 Ka5 Rd6 Nf2 Rd2 Ba6 Rd1 Rc5 Rc1 Nd3 Ra1 Rc1 Raxa4+
3BR1Kr/r1b2P1r/7b/Q1n2P1N/bnprBB2/3RqR2/p3k3/4qN1b w - - 0 1 illegal: No possible last move
K3b1nN/pr2rp2/N2RR3/n4r1n/B1B5/Prk1q1q1/1NP5/1Rn3bQ w - - 0 1 legal: proof: f4 h5 g4 hxg4 e4 c5 e5 c4 e6 dxe6 f5 c3 bxc3 exf5 c4 Nf6 c5 Ng8 Bb2 f4 Bd4 Qd5 Bf2 Qd8 Bg3 fxg3 Ke2 Kd7 Ke3 Ke6 Ke4 b5 h4 g5 d4 g2 a3 b4 c6 g3 h5 b3 c7 b2 h6 g4 h7 Bd7 c8B Qc7 Nh3 g1Q Qd3 g2 Qc3 g3 Qc5 Nc6 Nd2 b1R Qb4 Na5 Bca6 Be8 Qb5 Rb8 Qb2 Rb7 Qc1 R1b3 d5+ Kf6 d6 e5 Kd5 e4 d7 e3 d8R e2 Nf2 e1R Bfb5 Re7 Nd3 Qe3 Rd1 g1N Nc4 g2 Nc5 Qcg3 Ba4 Nh3 Re1 g1N Nb2 Ne2 Rb1 Nhf4+ Kd6 Kf5 Bc4 Nh5+ Kd5 Bg7 Na6 Bd4 Rd6 Bc5 Qd1 Nc1 Re2 Qeg5 Qh1 Bg1 Ree6 Qh6 Rg6 Kf4 Rgf6+ Ke3 Rg6 Kd2 Rge6 Qhe3 Nb8 Nh6 Na6 Rg8 h8N Rg4 Rd7 Rf4 Kd6 R7b4 Kc7+ Kc3 Kc8 Ng8 Rdd6 Bb5 Kb8 Rf5 Ka8 Be8 Nc5 Rb6 Na6 Rbb7
2RN4/K1b2n1n/nBNN2n1/P2r2B1/pQ2pb2/2b1R1Pn/2k2b2/q2b3R w - - 0 1 illegal: No proof kernel
6n1/K3q1B1/2QPn2R/p3n1R1/2q1RqNB/pk1n1P1N/3r1n1q/1bb4B w - - 0 1 legal: proof: a4 a5 e4 d5 c4 dxc4 h4 g5 f3 gxh4 Kf2 b5 Ke1 Ra6 e5 Rf6 e6 bxa4 g3 Rf4 gxf4 fxe6 Bh3 e5 Bf1 e4 Kf2 Kf7 Ke3 Ke6 b4 Kd5 d4 c5 b5 e5 b6 h5 f5 a3 b7 h3 f6 h4 f7 h2 Nd2 c3 Nc4 c2 Bh3 Nd7 b8R Bh6+ Kf2 e3+ Ke2 e4 f8B Ne5 Rb6 Bf5 Rc6 Qe7 Bf1 h3 Nd2 c4 Rf6 c3 Bb2 c1Q Bg7 c2 Nc4 Bf4 Ke1 e2 Kf2 e1N Rg6 Ng2 Rg5 e3+ Ke2 Rh4 Qe1 Rh6 Qc3 Rd6 Bf6 Ne1 Ra2 N1d3 Bg2 Nc5 Ba1 Be4 Rb2 Ne6 Rb4 Qb1 Bg7 c1Q Qc2 Bh7 Bc3 Qb3 Be1 Rd8 Bh4 Rd7 Qc3 Bb1 Qc2 Kc6 d5+ Kc5 Ra4 Kd4 Qg6 Kc3 Qe8 Qbb4 Qc8 Kb3 Qc6 Nd3 Ne5 Qcc4 Ng4 Ne5+ Kd1 Qb8 Ke1 e2 Kf2 e1N Rb4+ Kc3 Ra4 Bc1 Rb4 Bb2 Ke3 Nd3 Ra4 Qcc5+ Rd4 Qc4 Re4 Qbb4 Ne2+ Kb3 Nf4 Rb7 d6 Rb8 Rg1 h1Q Re1 h2 Nh3 Rb5 Re2 Rd5 Rd2 Qhc1 Bh1 Q1c2 Rg2 Qa4 Rh5 Rd4 Rh6 Bc1+ Rd2 Kb2 Nf6 Nf8 Bg2 h1N Rg4 Qc3 Rg5 Rc4 Ng4 Qcb3 Ng1 Ne6 Nh3 Ng3 Bh1 Ne4 Bg3 Qc3 Bf2 Kb3 Bh4 Bb2 Rd1 Qh2 Re1 Qcb4 Re2 Rc2 Re1 Rd2 Re2 Nef4 Re1 Bc1 Re2 Nc4+ Kd4 Nef2 Re3 Ne6+ Kd5 Qb8 Re1 Qbf8 Re4 Nd8 Kd4 Qff6+ Kd5 Qff4 Kd4 Nce5+ Kd5 Nb2+ Kc5 Ne6+ Kb6 Nbd3 Ka6 Qc4+ Kb6 Qef6 Ka7 Qe7+
2n5/1K5k/2r3pr/q5qB/q1BP1qn1/rr3Pb1/pN1RRQ1R/1N2N2n w - - 0 1 legal: proof: f4 b5 c4 d5 a4 bxa4 e3 dxc4 Bd3 e5 Na3 exf4 Nb1 f3 Kf1 f2 Ke2 Bb4 Nh3 Ba3 Ng1 Bf8 b3 f1N Be4 f5 Kf2 h6 Bb2 f4 Bd3 f3 Bf6 Bb7 Bg5 hxg5 Ke1 f2+ Ke2 Bf3+ gxf3 Rh5 Be4 Rh7 Bd3 Rh8 h4 Kf7 e4 Kg6 b4 a5 h5+ Kh7 h6 c5 e5+ g6 e6 c3 e7 a3 e8B a2 b5 a4 b6 a3 b7 c2 Bc6 c1Q Be8 g4 Nh3 g3 Rh2 g2 Bc4 g1Q d4 Bd6 Kd3 Qa5 Ke4 Qf4+ Kd5 Nd7 Kc6 Ngf6 b8R Ng4 Rb2 Ng3 Qd2 f1R Kb7 Nh1 Qf2 Nb6 Rd2 Nc8 Bd7 Rd1 Re2 Rd3 Bf5 Qgc1 Rd2 Qg5 Nf4 Bc7 Ng2 Bg3 Ne1 Rb3+ Bb5 c4 Re2 Ne3 Bg4 c3 Bh5 c2 Rd2 Ng4 Re2 Nb6 Bc4 Qcf4 Rd2 c1R Re2 Rhc8 Rd2 Rc6 Re2 Kh8 h7 Kg7 h8N Kh7 Nf7 Nc8+ Bb5 R1c5 Ne5 Rd5 Rd2 Rd8 Nc4 Rh8 Nb2 Qa4 Nc3 Ra5 Rad1 a1Q Nb1 a2 Re2 Ra8 Nbd3 Qc3 Nb2 Qca5 Rd3 Kg7 Rd1 Rh6 Rd3 Kh7 Rdd2 Ra3 Bc4 Raa6 Bb5 Rcc3 Bd3 Rac6 Bc4 Rcb3+
3BqnN1/n1r5/1Bn1p2Q/3qkP1q/5q2/prR3RN/1Pbr2B1/2K1n1R1 w - - 0 1 legal: proof: c4 c5 d4 cxd4 h4 g5 e4 gxh4 a3 f5 c5 fxe4 c6 Bh6 c7 b5 Qa4 Bb7 c8Q bxa4 Qc2 Bc8 Qd1 Bf4 Qd2 Bd6 Qd1 Bb4+ axb4 Ba6 Be3 Bb7 Bc1 Bc8 Kd2 Kf7 f4 Ke6 g4 a5 g5 h5 g6 d5 b5 e3+ Kc2 a3 b6 a4 g7 e2 b7 e1N+ Kd2 d3 Nh3 d4 Nf2 h3 Rh2 a2 Na3 h4 Qh5 Ra7 Kd1 d2 Rh1 h2 Rg1 h1Q Qg6+ Nf6 g8R h3 Nc4 h2 Nd3 a3 Nf2 Nc6 b8B Qhd5 Be5 h1Q Qg7 Qe8 Bg2 Rh3 Bf3 Rc7 Ne3 Nd7 Rg3 Nf8 Rb1 a1Q Bg2 Qh2 Ke2 d1R Nf5 d3+ Ke3 d2 Nh6 Qaa2 Bd4 Qdh5 Bb6 Qad5 Rh8 Ba6 Ng8 Bd3 f5+ Kd6 Qh6+ e6 Rh7 Bc2 Rd7+ Ke5 Rd8 Rh4 Nh3 Rb4 Rc8 Rb5 Rg4 Qf4+ Ke2 Nf3 Rg3 Rb3 Ra1 Rh1 Rb1 d1N Bd2 Rh2 Bda5 Rb7 Bd8 Rc7 Bb6 Nc3+ Kf2 Nb4 Rg1 Nb5 Kf1 Na7 Ke2 Re7 Rc3 Nbc6 Qg6 Rc7 Qh6 Bd3+ Kd1 Ne1+ Bf3 Re2 Bg2 Rd2+ Kc1 Bc2
1R6/1rN2p2/1Q1br1RB/nr1P1K2/2n5/k2n1q1B/qn2NpPq/1r1R2B1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 a4 g5 h4 gxh4 Qc2 b5 Nf3 b3 Ng1 b4 Qd1 Bb7 Nc3 Bc6 Nb1 Bb5 axb5 Qd5 Nh3 Qd7 Ng1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d3 h5 b6 c3 b7 b2 e3 f3 Be2 c2 Ra7 b3 d4+ Kb4 d5 c5 Ra3 c4 Nh3 c3 Rg1 f2 Kf4 Nc6 b8B Ra5 e4 Rb5 e5 Rh6 e6 Ne5 e7 Qa5 e8R Re6 Ba7 Bd6 Bg4 Ne7 Rb8 N7c6 Rc8 Nc4+ Kg5 Rb7 Nf4 h3 Re1 h2 Bb8 h1Q Rd8 h4 Re5 h3 Be3 c1N Bf5 c2 Ra1 h2 Qd4 Qa2 Bh3 Qd1 Na3 h1Q Kf5 b1R Ne2 b2 Nb5 Nd3 Bh6 c1N Nc7 Qh2 Qb6+ Ka3 Re3 N6a5 Rg3 Ncb3 Rdg8 Nbc5 R3g6 Na4 Rh8 Rc1 Rd8 b1R Rf8 Rb2 Rh8 Qb3 Rc8 Rf1 Rd1 Qc3 Re8 Rb5 Bg4 Nb4 Rd4 Rb1 Rd1 Qg1 Bh3 Nab2 Na8 Bc5 Bh2 Bd6 Nc7 Qh1 Bg1 Qh2 Rh8 Qcg3 Rhg8 N4d3 Rb8 Qf3+
1nRr4/q1pQp1k1/2B5/1r2Rqb1/2r3q1/4RP1b/1NKP2N1/1rb1Bb1N w - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 c5 axb4 c6 g5 Ba6 dxc6 Bd3 c5 Bf1 c4 h4 gxh4 a3 b5 Nh3 b3 Ng1 Nc6 a4 b4 Rh3 Na7 Rh1 Nb5 axb5 Ra4 Qc2 Ra3 Qd1 Ra8 g4 Kf7 g5 h5 g6+ Kg7 b6 c3 b7 c2 b8N b2 f3 e3 Ra2 b3 Ra5 h3 Bg2 h2 Nc3 b1R Nc6 h4 Nd4 h3 Bb2 c1B Nc2 e2 Ne3 Rb8 Ra3 Qd4 Bf1 Nf6 Ng2 Qa7 Na4 Rb5 Be5 b2 Bg3 Nd7 Re3 Nb8 Qc2 Rg8 Qc6 Bg4 Qd7 Bf5 Kf2 e1R Ne2 Be6 Rg1 h1Q Bh4 h2 Ng3 Bf5 Bc4 Be6 Bd5 Bh3 Bc6 Re2+ Kf1 Rh8 Re5 Re3 Kf2 Rg8 Re1 Re4+ Re3 Qg1+ Ke2 h1B Kd3 Rh8 Nf4 B1g2 Kc2 Bf1 Nh1 Qg4 Ng2 Kg8 Nb6 Bh6 g7 Bg5 Na4 Kh7 Be1 Rd8 g8R Kh6 Re8 Kg7 Nb6 Ra1 Nc4 b1Q+ Kd1 Qd3 Nb2 Rb1 Rf8 Qd5 Kc2 Qde6 Rh8 Qef5 Qe6 Rd7 Rc8 Rd8 Qd7 Rc4+
1n2RN2/pR2P3/2bK2bP/1RNr4/5B2/q3rq1B/q2q2rp/b1kB1Q1r w - - 0 1 illegal: No possible last move, all moves rejected
2Q5/4N1Br/K1pr1B2/1PqNqrRn/1bR1q1N1/1p3p2/b2n3P/kB5n w - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 h5 a4 bxa4 g4 hxg4 f4 e5 Qc2 exf4 Qb3 axb3 d4 Kd7 Kd2 Kd6 Kc3 f5 Kc4 g5 Kb5 a5 e4 f3 Bd2 c6+ Ka4 f4 b5 f2 Bg2 f1R Ne2 g3 Bh3 g2 Be1 g1N Bc3 g4 Ra3 g3 Ra1 g2 Nd2 Nf6 Rc1 Na6 Bb2 Nf3 Nb1 g1Q Rc4 Rh7 Nec3 Qe8 Bf5 Nd2 Ba1 Qe3 Rg1 Nh5 Rg5 Nb4 Bg6 Nd3 e5+ Ke7 e6 Kd6 e7 Bf5 Bb2 Rd8 Ba1 Nf2 Bb2 Kc7 d6+ Kb6 d5 Qc5 d7 Nh1 d6 Bc2 Bf5 Qg6 Bd3 Qe4 e8N Rf3 Nf6 Rf2 Na3 Bb1 Ng4 Ba2 Nc2 Be7 Nb4 Rf3 Ka3 a4 Bb1 Ka5 Nd5 Bf8 Bg7 Rf2 Kb2 a3+ Kc3 Ka4 Ne7 f3 Re5 Rg2 Rg5 Rg1 Nc8 Rd1 Ne7 Rb8 d8B Rb7 Nc8 Rf7 d7 Rf5 Ne7 Nf1 Ng8 Rd6 Bdf6 Nd2 d8Q Be7 Bc2 Bb1 Qf8 a2 Nd5+ Ka3 Qd8 Qf4 Qc8 a1Q+ Kd3 Ba2 Bb1 Bf8 Ne7 Qae5 Bc2 Qee4+ Kc3 Bb1 Bd3 Ka2 Bc2 Ka1 Bd3 Qg1 Kb4+ Qfe5 Ka5 Qc5 Ka6 Ba2 Ng8 Be7 Bb1 Bd8 Nge7 Ba5 Rd4 Bc3 Rc4 Bb4
4N3/RNqPb1p1/1nbr1q1Q/b1BB3q/1Np1nrBp/K6P/3k4/3nR3 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 f4 exf4 b4 a5 g3 fxg3 Bb2 axb4 Ba3 Ba6 Bc1 Bc8 d4 Ke7 Kd2 Kf6 Kc2 Kf5 Kb2 Ke4 d5 c5 e3 h5 h3 f5 b6 f4 b7 f3 d6 f2 Qa4 h4 Bd2 g2 Bc1 b3 Qa6 c3+ Ka3 b2 Be2 f1Q Nf3 g1Q Ne1 c2 Bg4 c4 Nd3 Qff6 Nb4 Nd7 b8N Qd1 Re1 Qc7 N8c6 Bb7 Nd8 Nb6 d7 Bc6 Nb7 Be7 Ra2 Rh6 Nc3+ Ke5 e4 Kd4 e5 Rf8 Bd2 c1B e6 Rf7 Bf4 Bd2 Bd6 Rg6 Ne4 b1N+ Kb2 Nc3 Ka3 Qe2 Raa1 Ke3 Bc5+ Qd4 Nf6 Nd1 Ne8 Nf6 Ra2 Ne4 Ra1 Rf4 Ra2 Bg5 e7 Rgf6 Ned6 Re6 e8B Be7 Bf7 Rg6 Ne8 Rd6 Bd5 Bc3 Ra1 Kd2 Qa4 Qf6 Qb3 Ng5 Qb1 Qee5 Qh7 Ne4 Qh6 Qh5 Nd3 Ba5 Ka2 Ndc3+ Kb2 Bb4 Ra7 Ba5 Nb4 Nd1+ Ka2 Ng5 Ka3 Ne4
5K2/rr4bQ/B6p/2r2bRB/n5pR/N1rqbnPN/P1Bpk2r/3R4 w - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 e5 c4 exf4 Kd2 a5 Ke1 axb4 Na3 b3 h4 g5 Be3 g4 Rc1 b2 Rc3 Qg5 Bc1 bxc1B hxg5 Bb2 Qb3 Ba1 Qa4 Bb2 Qd1 Ba1 Kf2 Ke7 e4 Ke6 g6 Ke5 g3 b5 c5 f5 c6 d5 g7 b4 c7 b3 Rc4 d3 Nb5 d2 Qf3 d1R Rh5 b2 Rc6 b1R Rc4 d4 Bg2 d3 Na3 d2 Bf1 Nh6 g8R Na6 Ra4 Bc5+ Kg2 Rb7 Rd4 Nf7 Rh4 Raa7 Rg6 Ng5 Rc4 Be3 Nh3 Nc5 Rc1 Kd4 e5 Na4 e6 h6 Qf2 Nf3 Ba6 Rh1 e7 Rh2+ Kf1 Be6 Ke2 Rc8 e8B Ke4 Rg5 Bg7 Ra1 Kd4 Bh5 Kc3 Nb1+ Kc2 Qg2 Kc1 Kd3 Kd1 Qf2 Bd7 Qg2 Ke1 Kc4 Kd1 Nf2+ Ke2 Kd5+ Ke1 Qh3 Nd4 Nd3+ Ke2 Kd6 f3 Ke7 f2 Na3 f1R Qg2+ Rf2 Qg1 Rf1 Qh1 Rc1 Qe4 Rc3 Rf1 f4 Kf7 f3 Rd1 f2 Qh7 f1Q+ Nf2+ Kf3 Nh3 Bf5 Bd3 Qe2 Bc2 Qd3 Ke7 Ke2 Kf7 Rf8+ Ke7 Rf7+ Ke8 Rb5 c8B Nf3 Ba6 Rfd7 Bb3 Rdb7 Bc2 Bgd4 Kf8 Rbc5 Bc4 Bf6 Ba6 Bg7+
1N1Knr2/B3RP2/1N2R2p/r2br1Pk/6pn/bB1b2QB/1p3Nb1/4b1q1 w - - 0 1 legal: proof: c4 a5 g4 f5 h4 d5 b4 axb4 d4 g5 Qd2 gxh4 Qg5 e5 cxd5 exd4 Qf4 Ra3 g5 Ra8 Qg4 fxg4 Kd2 Kf7 Kd3 Kg6 Ke4 b5 Ke5 c5 a4 h6 e4 h3 f4 c4 d6 d3 d7 b3 Ke6 c3 e5 d2 f5+ Kh5 a5 d1R f6 b4 f7 c2 a6 h2 a7 b2 Nc3 b1B Na4 b3 Bh3 b2 Be3 c1B Nb6 Nc6 Ra6 Ba3 Bd4 Rb8 a8Q Nce7 Qf3 Ra8 Qg3 Bb7 Be3 Qc7 d8N Bd3 Nc6 Re1 Nb8 Qc5 Kd7 Bd5 e6 Bd2 Kd8 Nf5 e7 Nf6+ e8B Nh4 Ra7 Rg8 Re7 Ra5 Bd4 Re5 Re6 Rg7 Ba4 Ne8 Bb3 Be1 Re7 Bg2 N6d7 Bc3 Be3 Bd5 Bf1 Rf5 Nh3 Rg8 Bg2 Rf8 Re1 h1B Bg1 Rh8 R1e6 Re5 Bd4 Bd2 Bf2 Qc1 Ba7 Qg1 Nb6 Be1 Nf2 Rf8 Bh3 Bhg2
r5q1/1rR1b3/BQ6/2pK1bNB/B1Pp1p1k/3Pr3/2bn1n1n/2R1R1rN w - - 0 1 legal: proof: f4 a5 h4 g5 a4 gxh4 b4 e5 Ba3 exf4 Bb2 axb4 Ba3 b5 axb5 bxa3 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 f5+ Kd4 h5 e4 d5 c4 c5+ Ke5 f3 b6 h3 b7 f2 Qf3 d4 Be2 f1B Nc3 h4 Nd1 f4 Nf2 h2 Re1 h3 Qb3 a2 Qb6 Kh4 g5 a1R g6 Nf6 g7 Rh7 g8B Bf5 Bh5 Be7 Be6 Bd3 Bc8 Bc2 d3 Qg8 Rc1 Rf7 Re1 Ng4+ Kd5 Nd7 b8R R1a6 Rb7 Nde5 Rc7 Nf3 e5 Nd2 e6 R6a7 Ba6 Rb7 Rc1 Rff8 Re1 Rfe8 Nf3+ Kg3 Ng5 Kh4 Rhf1 h1R Rc1 h2 Rfe1 Rf1 Qa5 h1N Qb6 Ng3 Nh1 Rg1 Qd6 Ngf1 Qb6 Qg7 Qc6 Nf2 Qb6 Bd6 e7 Nh2 Re3 Qg8+ Re6 Rf8 e8B Be7 Ba4 Rf7 Ree1 Rf6+ Nf7 Re6 Ng5 Re3+
1nrBNbK1/b1n2rB1/1nkP4/Bbpp2Rb/3R3R/8/1p1P4/1r1NQ2q w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d6 e6 fxe6 c5 Bd7 Bg2 Bc8 Bd5 exd5 cxd6 Ra6 Ne2 Ra5 Ng1 Ra8 Ke2 Kd7 Ke3 b5 Kf4 g5+ Ke5 g3 f4 g2 h4 b3 a4 g4 a5 b2 f5 g3 a6 b4 f6 b3 a7 Rh7 f7 Kc6 h5 Bd7 h6 Nf6 Rh4 Ne8 Nh3 g1B Nc3 b1B Ng5 g2 Ne6 Bg6 Bb2 Bh5 Ng7 e6 Ba3 b2 Bb4 Bb6 Qe2 g1N Qe1 Ne2 Nd1 Nc3 Ba5 Na4 Ra3 Bf2 Rg3 Nb6 Rg5 Qc8 Rd4 Qa6 Rh4 Qf1 Rd4 Qh1 Rh4 Rh8 h7 Rg8 h8B Bg1 Nf5 Rg7 Rd4 Rh7 Bf6 Bf2 Bd8 Be3 Ng7 Bg1 Kf4 e5+ Kg3 e4 Kf4 e3 Ke5 e2 Rh4 Kb7 Rd4 Bb5 Ke6 c6 Rh4 Nc7+ Kf6 Nba6 Ne8 Rc8 a8R Nb8 Rd4 Na4 Rh4 Ba7 Rd4 c5 Rh4 Bh6 f8B Kc6 Bg7 Nb6 Ke7 Bc4 Kf8 Bb5 Qf2 e1R Kg8 Rg1 Qe1 Rf1 Be5 Rd7 Bh8 Bf8 Bg7 Nba6 Rb8 Rdf7 Rb7 Nb8 Rd4 Ne6 Re7 Nc7 Ree4 R1f3 Reg4 Ra3 Rgf4 Ra1 Rh4 Rb1
bN2RR1n/B1q3bR/2P2P1r/Qrr3K1/1r3r1n/pN1q2kB/B5pp/8 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 g4 g5 e4 gxh4 Qd3 fxe4 Qg3 b5 axb5 hxg3 Ke2 Kf7 f4 Ke6 b4 d5 c4 a5 f5+ Ke5 g5 h5 c5 g2 f6 d3+ Ke3 h4 g6 d2 g7 d1R b6 d4+ Ke2 a4 b7 e3 Kf3 h3 b5 h2 b6 e2 c6 e1R Na3 d3 Ne2 d2 Ng3 Re4 Nh5 Ra5 Ng3 Rb4 Rb1 Qc7 Be2 Rab5 Ne4 Rh6 Re1 Nd7 b8R Bb7 Kg4 Ba8 Nc2 a3 b7 e6 Re8 Ne7 b8Q Nf5 g8B Bg7 Kg5 Nf8 Na1 Ng6 Rf8 Nh8 Bg4 Rc5 Re2 Rf1 Qb5 d1Q Nb3 Qd3 Bh3 Rf4 Qa5 Rbb5 Be3 Rb4 Nc3 Rcb5 Na2 Ke4 Nd4 e5 Nb3 Kf3 Ba7 e4 Rbe1 e3 Rb1 Ra4 Nb4 Kg3 Na6 Rab4 Nb8 Rc5 Ree1 e2 Rbd1 Qf3 Rd7 Qd3 Re7 Rbb5 Ree8 Rfb4 Rd1 e1R Bf7 Ree4 Re1 Rf4 R1e7 Ng6 Bd5 Bh8 Rh7 Bg7 Nd2 Nh8 Ba2 Qb1 Nb3 Qf1 Rf7 Qd3 Rff8 Nh4+
2kn1NN1/r7/pRP1p3/2pqrNKn/b1b2PBq/Br1B1R2/1r4Q1/r7 w - - 0 1 legal: proof: h4 c5 e4 g5 b4 gxh4 e5 cxb4 e6 b5 a3 b3 Qg4 b2 Qe2 fxe6 Qf3 e5 Qd1 e4 c4 b4 c5 d6 c6 b3 Qg4 Bg7 Qf5 Bc3 Qc5 Bb4 axb4 dxc5 Ke2 h5 Ke3 h3 Kf4 h2 d4 a6 g4 h4 d5 h3 b5 e3 g5 e2 d6 e1R d7+ Kf8 g6 Nf6 b6 Nh5+ Kg5 Ra7 Nd2 b1B f4 b2 b7 Bc2 Rb1 Ba4 g7+ Kf7 Ngf3 Re5+ Kg4 Ke6 g8B+ Kd6 Bd3 Kc7 Rf1 h1Q Ne4 h2 Be6 Rg8+ Kh4 Rg2 Nd4 Rc2 Nf6 Qd5 Nf5 h1R+ Kg5 Rch2 Ra1 b1R Rf3 Rb3 Ba3 Rhb2 Rb1 Qh8 d8N Nd7 Ng8 Nf8 Bd7 Rd1 Ne6+ Kb8 Rc1 Rf1 Rc4 Ra1 Rb4 Qh7 Rb6 Qh8 Ng7 Kc7 b8Q+ Kd8 Qa8 Ne6+ Kg4 Kc7 Kh4 Nd8 Kg5 Nb7 Be6 Bd7 Qe8 Nd8 Qg6 Be8 Bd7 Bf7 Bc8 Qd6 Bd7 Bc4 Bc8 Qd5 Bd7 Nb7 Ne6+ Kb8 Nf8 e6 Be8 Kc8 Qg7 Ng3 Bh5 Nd8 Bg4 Qh3 Qh7 Qh2 Qh3 Nh5 Qg2 Qh4+
3N2kn/BQ1q1rb1/1bPb3r/1p3n2/2B3P1/1p2pNqq/2N3q1/K2RB1R1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f3 g5 Be2 g3 Kf1 b6 Bd2 g4 Ke1 g2 Bc1 g3 Bb5 Ba6 Bf1 Bc4 Ba3 Be6 Bc1 Bg4 fxg4 Rh6 Nd2 Rh7 Nb1 Rh8 Kd2 Kf7 c4 d5 Kc2 e5 Kb2 b5 a4 d3 h4 d4 c5 b3 a5 d2 a6 d3 h5 e3 h6 e2 c6 e1B h7 e4 a7 Nd7 Na3 Bd6 Qe2 d1Q Bd2 Nf8 Bg5 d2 Bf6 Ng6 Rh3 Qc7 Rh5 N8e7 Bh4 Raf8 a8N Nf5 Qe3 Qf3 Nc2 d1Q Qa7 Kg7 Rg5 Rf7 Bc4 Qde2 Kb1 Bc3 Qb7 Qd7 Nc7 Qfe3 Nf3 g1B Rh5 g2 Be1 Kf8 Rh2 Bg7 Rh1 Bf2 Rg1 Q2d3 Ne5 Qg3 Nf3 Bb6 Ne6+ Ke8 Rh1 g1Q Nd8 Q1g2 Rf1 Kf8 Rg1 Rg8 h8B e3 Nd4 Qdf1 Kb2 Q2h3 Rd1 Qfg2 Ka1 Bh6 Bf6 Rh8 Be7+ Kg8 Nf3 Bg7+ Bf6 Rh6 Bd4 Bgf8 Bc5 Nh8 Bd4 Ba5 Ba7 Bb6 Rd2 Bg7+ Rd4 Bgf8 Rd1 Bg7+
1n4R1/1rb3n1/p1p5/b3nBQP/BRqnqN1r/B3P3/r1p2KR1/k1N5 w - - 0 1 legal: proof: b4 d5 a4 b5 f4 bxa4 c4 dxc4 g4 h5 b5 hxg4 b6 e5 Ba3 exf4 Bb2 Qd6 Bc1 Qd8 b7 a6 bxc8B Nc6 Ba3 Na7 Bb7 c6 Bc1 Rb8 Ba8 Rb5 Ba3 Ra5 Bc1 Rc5 d4 Kd7 h4 Kd6 e3 Kd5 Nd2 g5 Bh3 f5 Kf1 g3 Ba3 f3 Bb4 f4 Qb1 c3 Ba5 a3 Rh2 g2+ Ke1 c2 Qd1 g4 Ra2 g3 Bb4 f2+ Ke2 f1N Nc4 f3+ Ke1 f2+ Ke2 Qe8 Bc3 Nf6 Qd2 Nd7 Ba5 Qe4 Bc7 Nb5 Bd6 Nb8 Ra1 a2 Rb1 a1R Qa5 Ra2 Bb7 Be7 Rb2 Bd8 Bf5 Rh7 Nh3 g1B h5 g2 Ne5 Rc4 Bbc8 Rb7 Nd3 Ng3+ Kd2 f1Q Nc1 Bc7 Ba3 Bf2 Rb4 g1N Bcd7 N3e2 Bc8 Nf4 Rg2 Ne6 Bd7 Ng7 Nf4+ Kd6 d5 Kc5 d6 Bg3 Qa4 Nd4 Bde6 Ba5 d7 Bh2 d8R Qfd3+ Ke1 Ngf3+ Kf2 Ne5 Rb1+ Rcb4 Rg8 Qc4 Qb3 Kb5 Qd3 Ka4 Qd1 Rb3 Qg4 R3b5 Bc5 Rb4 Qg5 Ka3 Bd6 Qc3 Bb3 Qc4 Ra1 Kb2 Ba4 Ra3 Ra2+ Kb1 Rb2+ Ka1 Bf8 Ra2 Bc5 R4b5 Ba3 Rb4 Nh3 Nf7 Rb3 Bhc7 Nf4 Ne5 Rd3 Rb1 Rb3 Rbb2 Rb4 Rb1 Ncd3 Rh1 Nc1 Rh4
N1r2b2/1Q1p1N1B/2Pb1R2/1pnr1K2/3q1B2/1BrPpn1r/rk2N1rR/8 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 Na3 gxh4 Bc4 b6 Bf1 Ba6 Nb1 Bc4 a4 b3 Rh2 Bb5 axb5 c6 Rh3 cxb5 Rh1 b4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 c4 h5 c5 e5+ Kf5 b2 f4 b3 g5 h3 g6 b5 g7 e3 d3 e4 c6 e2 Qe1 e3 Ra6 h2 Nh3 h4 Ra3 Na6 Qd1 e1B Rg1 h1R Nc3 b1R Ng5 b2 Ra2 h3 Be2 h2 Nf7 Qb6 Rf1 Nf6 g8B Ne4 Bh7 Bg3 Bd2 Ng5 Be1 Nf3 Qa4+ Nb4 Rf2 Rc1 Qa7 b1R Bd1 Na6 Bb3 Nc5 Qb7 Rb2 Rf1 Rg2 Rd2 Bh4 Bg3 Bhe7 Rff2 Ra2 Rde2 Ne6 Rb2 Bd6 Ne2+ Kc5 Rd2 Kb4 Kf6 Bh6 f5 Ka3 Ne5 Rgg1 Rd1 Nfd4 Rdf1 Kb2 Kg6 Bg7 f6 Rc3 f7 Rc8 f8N Qa7 Rf6 Nf3 Nf7 Qd4 Rf2 Nc5 Ne6 Bh6 Nc7 Bhf8 Rf1 Rg2 Na8 Nd2 Ra1 Rf1 Rc1 Rf5 Rd1 Nf3 Rh1 Rf2 Bf4 Rd5 Rg1 h1R Rg2 Rh3 Rh2 Ne5+ Kg5 Rg2+ Kf5 Nf3+
bb1Br2N/1p1BP2N/3P1pQ1/1R4b1/4Bb1q/k2KR1bb/p5N1/1n4nr w - - 0 1 illegal: Other
3nn1rb/2q2B2/1B5k/1NPrpR1p/Qr1n4/2K1p3/2BPNnb1/1r1N3R w - - 0 1 legal: proof: h4 c5 c4 d5 a4 f5 e4 fxe4 b4 g5 Qf3 gxh4 Qd3 b5 axb5 cxb4 c5 Qa5 Qb3 Qd8 Qc4 dxc4 g4 Kf7 f4 Kg7 g5 h5 f5 e5 g6 a5 b6 c3 f6+ Kh6 f7 b3 g7 c2 b7 b2 Nh3 e3 Bb5 a4 Rf1 a3 Nf2 h3 Ke2 h2 Ba4 h1N Nd1 a2 Rf5 Qc7 Kd3 Nc6 b8Q Nd8 Na3 b1R Qb5 Rb4 Kc3 Bb7 Bb2 c1N Bc2 Bg2 Qa4 Nf6 g8B Bg7 f8N Ne8 Ng6 Nb3 Nf4 Nf2 Bf7 Rg8 Ne2 Nd4 Nb5 Bh8 Rb1 a1R Ba3 Rb2 Bb4 Rc8 Ba5 Rb4 Rc1 Rab1 Bb6 Ra8 Nb2 Ra6 Rh1 Ra7 Nd1 Ra6 Ba7 Rd6 Bb6 Rd5
2b1BbN1/2p1P3/R7/pb1k2q1/Pq2Rrr1/B1p1B3/2bq2n1/KQ1NR2b w - - 0 1 legal: proof: h4 e5 f4 b5 e4 d5 d4 exd4 c4 bxc4 h5 d3 h6 gxh6 Qb3 h5 Qa4+ Nd7 Qd1 Ne5 fxe5 dxe4 Bh6 h4 Bd2 Qd7 Bc1 Qd8 Kd2 Kd7 Kc3 Ke6 g4 f5 a4 h5 b4 a5 Kb2 d2 b5 c3+ Ka2 e3 g5 h3 b6 h2 b7 h4 b8B f4 g6 h3 g7 f3 Qc2 d1B Bb5 f2 Be8 f1B Ba3 e2 Ba7 e1Q Be3 Bb5 Nd2 Ne7 g8R Rh4 Rg6+ Kd5 e6 Nf5 Qb1 Bc2 Ne4 Qg5 e7 Rf4 Ra6 Qd2 Nf6+ Ke5 Ng4+ Kd5 Nh6 Nh4 Ng8 Rb8 Qb2 Rb7 Re1 Ng2 Qb1 Rb6 Ka1 Rg6 Nf3 Rg7 Ne5 Rg6 Rhg1 h1Q Nd3 h2 Nb2 Rg7 Rgf1 Qg1 Rf3 h1B Nd1 Qh4 Rf2 Rgg4 Rfe2 Qg5 Ba7 Qb6 Re4 Qd6 Be3 Qb4
bRn1Bn2/Qp3R2/p7/Nb2Pq1k/q2Rb3/P1b3r1/3Np2b/K1N2q1B w - - 0 1 illegal: Other
1Qrq2b1/2Rrr3/3BNq2/2b2BP1/q2p2np/3K1Pp1/1R2B1b1/2R2Nrk w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 h4 fxe4 Kd2 a5 Ke1 axb4 Bh6 g5 Qc1 g4 Bg5 Na6 Qd1 Nc7 Bc1 Ne6 g3 b5 Be3 Ng5 hxg5 Ra3 Bf4 Rxg3 Bc1 Rg2 Ke2 Kf7 c4 Ke6 a4 Kf5 a5 e5 c5 d5 c6 h5 a6 g3 c7 Kg4 a7 e3 a8R e4 R1a5 d3+ Ke1+ e2 Kd2 b3 Rh2 d4 Ra1 h4 Qe1 b4 Rb8 b2 Rb6 b3 Rd6 Nf6 Rh3 Be6 Rb6 Bc5 Rb5 Bg8 Na3 b1B Nc2 b2 Nf3 Rg1 c8B+ Kf4 Bd7 Ng4 Ne3 Bba2 Ra5 b1Q Rh2 Bad5 Ra7 Qbb6 Nf5 Qbf6 Ng7 Ba8 Qd1 e1R Qb3 Rh7 Ba3 Rc1 Be2 Rc4 Rf1 e3+ Ke1 Be4 Nd2 Bg2 Bf5 Rc2 Rc7 Rc3 Ne8 Rd7 Ng7 Rc2 Kd1 Rc3 Re1 Rc4 Nf1 d2 Qb8 Rc2 Bed3 Kf3 Ne6 Rc3 Bb4 Rc4 Bc3 e2+ Kc2 Bb4 Rb1 e1R Rc1 Rc6 Bc4 Bc5 Kd3 d1Q+ Bd2 Qa4 Bf4 Ra6 Bd6 Ra8 Nf4 Ree7 Ne6 Bh1 Rh3 Kg2 f3 Kf2 Rh2+ Bg2 Qb7 Rc8 Qb8 Rh1 Bb3 Kg1 Bd1 Bh3 Rb2 Bg2 Ne3 Kh2 Be2 Rg1 Nf1+ Kh1
3RBR2/1qqb2pb/2k1NPN1/1nb2Qp1/1q2K1p1/3r3r/Pr1bN3/B4B2 w - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 a5 g5 axb4 Nd2 f6 Nb1 fxg5 e3 h5 Bd2 d5 Qf3 d3 Qg4 hxg4 Bc1 d4 e4 Na6 Bh3 Nc7 Bf1 Nd5 exd5 Qb6 Bb2 Qc7 Bc1 Qd8 Kd2 Kd7 c4 b5 f4 e5 h4 b3 c5 b4 f5 b2 f6 b3 h5 e4 d6 Nh6 Ne2 Qc7 Rh4 Nf5 h6 Kc6 d7 Rb8 d8Q Bd7 h7 Nd6 Nf4 Nb5 Nc3 b1B Qc8 b2 Ne6 Bc2 Rh3 b1Q Ne2 Qb3 Bb2 Qb4+ Bc3 Bd6 Rd1 e3+ Kc1 Rb7 Ba1 Bb1 Qe8 Be7 Qg6 Bf8 Qf5 Rb6 Ng1 e2 Rd2 e1B Ne2 Bg3 Kd1 Bf4 Ke1 B8d6 Kf2 Bc2 Rd1 d2 Ra3 Be4 Ra8 d3 Rd8 Bf8 Rc1 d1Q Rb1 Bg3+ Ke3 Qdb3 Rd1 Bfd6 Rf8 Be1 Rd2 Q3a4 Rd1 Qa6 Rd2 Qab7 Rd1 Rg8 h8N d2 Ng6 Be7 Bb2 Rh8 Ba1 Bd5 Kd3 Bc4+ Ke4 Rh3 Rc1 d1R Rc2 Qa6 Rd2 Rb8 Rd5 Rdd3 Rd4 Bd2 Rd5 Kb7 c6+ Kb6 Rd6 Qab7 Rd4 Bc5 Rd5 Qg3 c7 Kc6 c8B Qgc7 Rd4 Be8 Rd8 Bd7 Ne6f4 Be8 Be6 Bd7 Bf7 Bb3+ Bd4 Bc4 Be8 Bg8 Ne6 Bh7 Nh4 Ra8 Ng6 Raa3 Ng3 Rab3 Ne2 Qba5 Ba1 Rb2 Nc1 Qa3 Ne2 Qb4+
B6K/RP1bb3/1PBn2n1/1NN4p/1pp2q2/2nrBN2/2bn2R1/1q1k1q1Q w - - 0 1 illegal: No proof kernel
7N/Pp1nB2K/q1q5/NRBBrq1n/3p3R/P3krnQ/1pr4R/3nb3 w - - 0 1 legal: proof: g4 c5 d4 cxd4 f4 a5 c3 h5 e3 hxg4 Qa4 e5 Be2 exf4 Qb4 d6 Bd1 Bd7 b3 Ba4 bxa4 axb4 a5 g3 a6 Qh4 Ke2 Qe7 Ke1 Qd8 Ke2 Kd7 Kd3 Kc6 Ke4 Kc5 Kf5 g5 h4 f3 c4 d3 a7 b3 a3 d5 h5 b2 e4 Kd4 c5 g4 h6 f2 e5 f1R+ Bf4 d2 c6 g2 h7 g3 e6 Rf3 c7 Nf6 c8Q Qb6 e7 Qa6 e8R Bb4 Kg5 Nbd7 Kh6 Nh5+ Bd6 f5 Re5 f4 Rh4 Re8 Nh3 g1Q h8B g2 Kh7 Qgf1 Be7 g1Q Bb3 d1N Ng5 Qh1 Nf7 Be1 Nd2 Kd3 Bhf6 d4 Rb5 Ke3 Bc5 Re5 Bd5 Rb8 Qh8 Rc8 Nb3 Qfh3 Na5 Qf5+ Kh6 Qg2 Rb1 Qgc2 Rc1 Qa4 Rc2 Rc6 Rch2 Rc7 Bd6 Rc2 Bfe7 Qc4 Qc8 Qcc6 Nh8 Rh3 Qg8 f3 Qg2 f2 Qf1 Rf3 Qh3 Qg5+ Kh7 f1N Bb4 Nfg3 Bbc5 Qf5+
1rrBKR2/nrn3p1/B6k/P3bb1B/p1R5/1Q3P2/1p1nn3/Nnn2N1N w - - 0 1 legal: proof: e4 f5 d4 fxe4 g4 c5 Bg5 cxd4 Bc1 h5 b4 hxg4 Qf3 a5 Qd1 a4 a3 Nc6 Bh3 Qa5 bxa5 Nb4 Bg2 Na2 Bf1 Rh3 Kd2 Rxa3 Ke2 Rh3 Ke1 Rh8 Kd2 Kf7 c4 Kg6 h4 b5 h5+ Kh6 c5 e5 c6 d5 c7 b4 Qb3 d3 Ke3 d2 Nf3 d1N+ Ke2+ e3 Kd3 d4 Kc4 e4 Kb5 d3 Kc6 g3 Nd4 d2 Bb2 g2 Ba6 g1N Bf1 e2 Ba3 e1R Rh4 e3 Nc2 e2 Rc4 Bf5 c8B Nc1 Ba6 Nf6 Bh3 Ra7 Bg4 Rb7 Bb2 Nd5 Bf6 N1c3 Bd8 d1N Nd2 Rg8 Nf1 Nb1 Ra3 Rh8 Na1 Nd1c3 Ra2 Nc7 f3 N3b5 Rac2 Bd6 Rf4 Nd2 Rcc4 Be4+ Kd7 Be5 Rf7 Na7 Rf8 Bf5+ Ke7 Rd1 Kf7 e1N Ke7 Kg5 h6 Nc2 h7 Na3 Bh5 Kh6 Kf7 Rg8 h8N Nab1 Ng6 Nge2 Nf4 Rh8 Nd3 Re1 Qb2 b3 Nf2 Rd1 Qa2 b2 Nh1 Rg8 Nfg3 Rg1 Nf1 Rg6 Ke7 Rgb6 Qb3 Rb8 Kf7 R6b7 Re8 Rf8+ Ke7 Rf6 Rf8 Rfb6 Kf7 Rc8 Ke7 Rbb8 Kf7 R6b7 Ke7 Nd5+ Ke8 Nc7+
2r3q1/b4BKp/1r4pB/2P2B1b/b2Np1nQ/2r1pN1R/1N2RPn1/kn6 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e3 b5 axb5 dxe3 Qd2 g6 Qd1 g5 g4 Qc7 h4 gxh4 g5 Bg7 g6 Bf8 g7 Qb6 Qh5 Qd8 Qg6 fxg6 Ke2 Kf7 Kd3 Ke6 Kd4 a5 c4 d5 b4 a4 b6 a3 b7 h3 b5 a2 b6 h2 Be2 Ra6 Nc3 Nd7 b8N Nc5 b7 Ne4 Bd2 Ngf6 Nb1 Ng4 Bc3 Rb6 Bf1 Bd7 Na3 Nd2 Nb1 Ba4 Na3 Nb1 Kc5 d4 g8B+ Ke5 Bh3 Bg7 Bd5 Qg8 Bf7 e6 Bb4 d3 Nc6+ Ke4 Kd6 e5 Ke6 d2 b8Q Kd3 Bc3 d1B Nf3 e4 Qd8+ Bd4 Qh4 Bc5 Re1 h1R Bg7 Be2 Bf8 Kc3 Bh6 Bd4 Ke7 Kb2 Ke6 Nh2 Bf5 Ng4 Nd2 Bf3 Re2 Rc1 Ke7 Rc3 c5 Be5 Nd4 Bb8 Re1 Be2 N2f3 Ba7 Rh1 Qg7 Rh3 Rc8 Be6 Qg8 Bf5 Nd2 Rg1 a1N Re1 Nb1 Nc4+ Ka2 Rh2 Bed1 Re2+ Nc2 Rh3 Ka1 Nb2 Ne1 Bb3 Qh8 Kf7 Ng2 Ba2 Qd8 Kg7 Rc4 Nd2 Ne5 Re1 Rc3 Bf7 Bh5 N2f3 Ng4 Re2 Qg8+
2k5/2n1b1N1/1rpbp1RR/1n1B3K/1Pq5/p1B1p2n/QPB1R2N/3rq1q1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 f5 h5 fxe4 h6 Be6 Qa4 bxa4 Nh3 gxh6 Nc3 h5 Nb1 h4 Ng1 dxc4 Rh3 Bg4 Rh2 Bd1 Rh1 Bb3 axb3 Bh6 Be2 Bg7 Bf1 Bf8 Ke2 Kd7 d4 a5 g4 h5 f4 c6 f5 h3 b4 a3 g5 h4 f6 a2 f7 a4 d5 e6 g6 c3 d6 h2 g7 a3 Nh3 c2 Be3 c1B Bd4 Bg5 Nd2 e3 Kf3 Kc8 Kg4 Na6 Bg2 Nh6+ Kh5 Bge7 g8B Nf5+ Bh7 Nc7 Nf3 Rb8 Rae1 a1Q Bc3 Rb6 Nf4 h3 Re2 Nd4 Rg1 h1Q Nh2 Ndb5 Bd5 Qc1 Rg6 Qhg1 Rh6 Rg8 Bc2 Rg2 Rg6 Qce1 Rh6 Rf2 Rg6 Rf1 d7+ Kb7 Rh6 Bd6 Rg6 Bfe7 f8R Qa8 Rf7 Qa6 Rff6 Kb8 d8Q+ Kb7 Ng4 h2 Rh6 h1N Nh2 Nf2 Rfg6 Nh3 Qd7 Be5 Qd6 Kb8 Qc5 Kc8 Qc4 B5d6 Qa2 Bc5 Ng2 Bcd6 Nh4 Qa4 Nf5 Qb3 Ng7 Qc4 Ba4 Qc1 Bc2 Rd1 Bh1 Qd2 Bd5 Qde1
2n3B1/1pNp1qK1/1q6/2bN2bP/1P2B1qp/p2n4/1R1NRb1R/1rQr2k1 w - - 0 1 illegal: No proof kernel forced: wxLB
b1r1K2n/q4BB1/1N4p1/1p3rrb/Pn3Pn1/6Nk/Q1npB2p/1RRR4 w - - 0 1 legal: proof: f4 a5 e4 f5 h4 fxe4 d4 c5 b4 axb4 h5 cxd4 h6 e6 g3 Bd6 f5 Bf4 gxf4 Qh4+ Kd2 Qxh6 Ke1 Qh2 a4 Kf7 c4 Kf6 c5 h5 c6 d5 c7 b5 Bd2 b3 Bh3 b2 Qc1 d3 Qc4 e5 Bb4 g6 Ba5 d2+ Kf1 d1N Qe2 e3 Qc2 d4 Bb6 e2+ Ke1 e4 Kd2 e1R+ Ne2 h4 Rg1 e3+ Kd3 Na6 Ke4 d3 Kd5 d2 Kc6 Nf2 Rf1 Ng4 Qc5 N8h6 Qc2 Nb4+ Kd6 Qf2 Na3 b1B Qa2 Rf8 Ng3 e2 Nc4 Be4 Rb1 Bc6 Rh1 Rg1 Bf1 e1N Be2 h3 Ba7 h2 Nb6 B8d7 c8B Nec2 Bb7 Bg2 Bd5 Rac8 Bf7 Ba8 Bb8 Rg2 Rhd1 Bdc6 Bc7 Bf3 Kd7 Rg1 Nc4 Qa7 Nb6 Kg7 f6+ Kh7 Bb3 Nf7 Ke7 Nh8 f7 Kh6 Bd5 Rfd8 f8R Rd6 Be6 Rd5 Bf7 Rf5 Rd8 Rg2 Ke8 Rg1 Be5 Rg2 Nh1 Kh5 Ng3+ Kh4 Bf6+ Kh3 Bg7 Nh6 Bf1 Bh5 Be2 Rc3 Rd3 Ng4 Rbc1 Rc6 Rb3 Rcc5 Nf1+ Rg3 Rbb1 Rgc3 Ng3 Rg5 Bf3 Rcf5 Be2 Rc8+
2bnB3/3P4/2p1r3/r2BB2R/Q2K1pb1/1b2r1p1/1p1qkbPn/RNRN4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 axb4 f5 d5 cxd5 e6 Qb3 exf5 Qf3 f4 Qg3 hxg3 a4 Kd7 d4 Kd6 Kd2 h5 Kd3 b5 e4 f5 a5 h4 a6 h3 a7 h2 Ra5 f3 Nh3 b3 Ra1 b2 Nd2 b1B+ Kc3 f2 Rg1 h1R Ra5 b4+ Kc4 b3 Be2 f1B Ra1 f4 Bb2 Nh6 Nf2 Ng4 Nd1 Bc2 Nb1 Nc6 Kc3 R8h4 Bf3 Be2 Re1 Nh2 e5+ Ke7 e6 Kd6 e7 Rh6 e8B Re6 Be4 Bg4 Bf3 Qd7 Re5 Bg7 Rh5 Nd8 Kc4 c6 Kc3 Rb8 a8Q Rb5 Qa4 Rhe1 Kc4 Ra5 Bc3 Kc7 d6+ Kb6 d5 b2 Be5 Bb3+ Kd4 Re3 Be4 Qe7 d7 Qd6 Qc4 Qb4 d6 Qe1 Qc2 Kb5 Bd5 Kb4 Qe4 Qd2+ Qd3 Nb7 d8R Bf8 Rd7 Nd8 Rdh7 Rf3 d7 Bc5+ Ke4 Bf2 Qa6 Bc4 Qa8 Kb3 Qa6 Kc2 Qb5 Bb3 Qa4 Nf1 Rh1 Nh2 Rh5 Rd3 Re1 Rf3 Re3 Kc1 Rd3 Re3+ Kd4 Qe2 Rc3+ Qc2 Na3+ Kd2 Nb1+ Ke2 Rc4 Qh7 Rc1 Qe7 Rc3 Qb4+ Rc4 Qe1 Rc1 Qd2+
3K2N1/1q2B2r/Bp1bNP1q/3pr1Qr/b6B/2pP1qNR/n1Rbp3/k7 w - - 0 1 legal: proof: b4 g5 a4 f5 e4 fxe4 c4 b6 h4 gxh4 a5 Nc6 a6 Ne5 c5 bxc5 b5 c4 b6 Nc6 Ne2 Na5 Ng1 Nb7 axb7 axb6 Qf3 c3 Qg4 Rb8 Qd1 Ra8 Ke2 Kf7 Ke3 Ke6 Kd4 c5+ Kc4 Ke5 Kb5 Kd4 b8B e5 g4 h5 f4 d5 Kc6 h3 d3 e3 g5 e2 f5 e1B f6 c2 g6 h4 g7 h2 Nd2 Kc3 Ba3 c1Q Rb1 c4 Bg2 e4 Qg4 e3 Qe2 h3 Qd1 e2 Ba7 Bd7+ Kb7 Rh7 Be7 Ba4 Nf1 Bd2 Bb8 Qd7+ Bc7 Re8 Nf3 Rh5 Ng5 Rh7 Ra1 Kb2 Ne6 c3 Ra2+ Kb1 Rc2 Ka1 Ng3 Rh5 Ba3 Bd6 Qg1 Ne7 g8N Nc6 Be4 Qf7 Bf5 Nb4 Qe3 Qg7 Qg5 Na2 Bb4 Re7 Kc8 Qf1 Kd8 Qc1 Nf4 Re5 Bc8 Qh7 Bb8 Qb7 Ne6 Rh7 Rf1 h1R Rf3 h2 Bc5 Qa7 Ba6 Qb7 Bc7 Re1 Bf2 h1Q Re3 Qf3 Bb8 Bc5 Bd6 Reh1 Be7 Bd6 Ne4 R1h6 Bh4 Rh5 Ng3 Qcf1 Nh1 Qf4 Rh3 Q1f3 Ng3 Q4e3 Qf5 Qg5 Qg4 Qg6 Qg5 Qh6
RQ2B2K/p1N2p2/8/PqR1n2n/kPb1RB2/qn1N1rp1/Nb1p1p2/4r3 w - - 0 1 legal: proof: d4 h5 c4 e5 f4 exf4 g4 b6 c5 bxc5 gxh5 cxd4 Kd2 d3 Kc3 dxe2 Kc2 Qf6 Kd2 Qd8 Kd3 e1Q Kd4 d5 a4 Kd7 b4 Kc6 h4 g5 h6 f3 h5 f2 a5 g4 h7 Nd7 h6 Qde8 Nc3 Ngf6 Nf3 Ba6 Na2 Bc4 Ng5 Kb5 Ne6 Bg7 Bf4 Ne5 Rh4 Nh5 Rc1 g3 Bg2 Rc8 Bh3 Rf8 h8N c6 Qf3 Ka4 h7 Qd7 Rc3 Rfe8 Nc7 Qc1 Ng6 Qa3 h8R Re6 Qd3 Rce8 Rf8 Rf6 Rc1 Re7 Ra8 Qe8 Bf1 Qb8 Qf5 Qb5 Qc8 Ree6 Rc3 Re8 Qb8 c5+ Ke3 d4+ Ke4 d3 Bh3 d2 Bd7 Rc6 Kf5 Rf6+ Kg5 Bh8 Kh6 Re7 Kh7 Rf5 Bh6 Rf3 Be8 Nd3 Qb6 Be6 Bd7 c4 Nf4 Bd4 Rc1 c3 Qb8 c2 Be8 Bb2 Rg4 Bd5 Bg5 Ree3 Bh6 Ne5 Nd3 Be6 Kh8 Re1 Re4 Bb3 Bf4 Be6 Rb1 c1N Ra1 Nb3 Rc1 Bd5 Rc5 Bc4
1nB5/pp2q1QR/bp4R1/3pNp2/4rqqP/3r2bb/1B1B1Pk1/2RK2N1 w - - 0 1 legal: proof: b4 e5 d4 exd4 g4 h5 c4 hxg4 c5 Qh4 c6 Qh6 b5 Qe6 b6 cxb6 c7 Qb3 cxb8B Qxa2 h4 Ke7 e4 Kf6 e5+ Kf5 e6 Ke4 e7 g5 e8R+ Qe6 Ra5 g3 Ke2 d3+ Ke1 g4 Bc7 g2 Re7 d2+ Ke2 g3 Bb2 Nf6 Nh3 g1Q Na3 g2 Bb8 Qh2 Bd4 g1Q Bc7 Qf4 Qb3 d1B+ Ke1 Qgg4 Be3 Kf3 Nc4 Be2 Rg5 d5 Bb8 Rg8 Qb2 Nd7 Be5 Nb8 Rg6 f6 Rf7 Bd6 Rh7 Qe7 Bd2 Bd3 Be2+ Kg2 Ng1 Bd7 Bd4 Be6 Ne5 Ba6 Bd1 Rc8 Ba4 Rc3 Bd7 Rd3 B4c3 Qgg5 Ke2 Bh3 Kd1 f5 Bc8 Qgg3 Qb3 Qgg5 Bb2 Bc7 Qc3 Qfg4+ Nef3 Bg3 Qh8 Q5f4 Qg7 Nc6 Be6 Re8 Bc8 Qgg5 Ne5 Nb8 Re6 Qg6 Rd6 Qgg5 Rg6 Qgg4+ Ke1 Qc4 Ne2 Bh2 Nf7 Qf8 Rf1 Ree3 Ne5 Bg3 Rh1 Qe7 Rf1 Rf3 Ng1 Qcb4 Ke2 Qbf4 Rc1 Rd4+ Ke1 Re4+ Kd1 Rd3+
1R2Rb1N/p3B1Pk/2p2B1N/P2rQNpK/2r1rbb1/3Bb2p/p2q4/6n1 w - - 0 1 legal: proof: e4 b5 c4 d5 a4 dxc4 h4 g5 a5 f5 h5 fxe4 Be2 Nc6 Bf1 Ne5 Qa4 Ng6 hxg6 bxa4 Ke2 e5 f4 h5 b4 h4 d4 c3 g7 Kf7 f5 c6 d5 h3 b5 e3 Kf3 e4+ Kg4 c2 d6 e2 b6 e1B b7 e3 b8Q a3 d7 a2 f6 Kg6 f7 e2 Qe5 Ba3 f8B Rh6 Nf3 Bd2 Nc3 e1R Rb1 Ne7 Nd5 Kh7 Nd4 Nf5 Rb8 Be3 Ne7 Ng3 Nef5 Ne2 Be7 Ng1 Bb2 c1B Bd3 Bf4 g3 Bce3 Ba1 Rd6 Kh5 Rc1 g4 Rd5 Rh2 Rc4 Re2 Ba6 Re1 Bb5 Bc3 Ba4 Re2 Qh8 d8N Bd1 Nf7 Qd8 Nh8 Qd6 Bb2 Qb4 Ba1 Qd2 Bb2 Bf2 Re4 B2e3 Nh6 Bb4 Ndf5 Ba3 Rb5 Re8 Rb8 Bb4 Bf6 Bf8 Ba3 Rdd4 Bae7 Red8 Qc7 R8d5 Re6 Re4 Qe5 Ba4 Bd8 Bb3 Re8 Bd1 Bde7 Bxg4+
2B1RB2/2B5/pb1Pb3/1p1p1R1n/2P1p1nb/1KRb4/pq5k/N3QqrN w - - 0 1 illegal: No proof kernel
3Q1qb1/R1BPR1n1/1n3r2/3r4/bk2BP1q/bB1b1n1N/K1q3b1/N2bR1b1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb2 b5 g4 e5 a4 h5 f4 c3+ Ka2 h3 g5 h4 d5 b3+ Ka3 b2 g6 b4+ Ka2 b3+ Ka3 h2 g7 e3 a5 e2 a6 e1Q a7 c4 Qf3 Kc5 d6 c2 Qg4 e4 Qh3 c3 Be2 e3 Bd3 e2 Be4 Rh6 Qf3 h3 Bb7 Be6 Bd2 c1Q Qe4 c2 Bd5 Nd7 Qf3 Ngf6 g8R Ne8 Rg6 Qeh4 Qh5 e1N Rf6 Nf3 Rf7 Ng7 Qg6 Nb6 Rd7 Bg8 Qe6 Rf6 Bc4 Qe7 Bf1 Rd8 a8B Qd1 Be1 c1B Bd5 Be3 Bf2 Qc2 Nd2 b1B Ba8 b2 Bc4 Ba2 Qe4 b1B Qd3 Bb3 Be4 Ba4 Bb3 Qf7 Re7 Qe8 Ne2 Qf7 Rd1 h1B Re1 h2 Ng1 Bg2 Nh3 h1B Bg1 Qd1 Kb2 Kb4 Qd5 Bc2 Ka2 Bd3 Qa8 Rd7 Qd8 Bc5 Bd4 Qc1 Be5 Bg1 Rb1 Qc2+ Rb2 Rc7 d7 Rc5 Bc7 Rg5 Ka1 Rd5 Ra2 Bgf1 Ra3 Bfe2 Ra2 Bd1 Ra3 Qc6 Kb2 Bg2 Ka2 Bab5 Ra7 Ba4 Bc2 Qc5 Nb3 Qg6 Na1 Qf7 Re5 Be7 Re6 Qf8 Bb3 Qc4 Re5 Bec5 Re7 Qc1 Be5 Qc2+ Bb2 Kb5 Bg6 Ba3 Be4 Qc5 Be5 Kb4 Bc7 Qc2+
4rR1q/1q1N1Pbn/rn5R/R1BP2b1/bb1N4/2q1n3/2Bk1r1b/1KN2bQ1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kd7 Kd2 Kc6 Kc2 Kb5 g4 c5 f4 e5 a3 h5 g5 h3 g6 h4 f5 b3+ Kb2 e3 d5 e4 f6 e2 f7 e1B g7 h2 a4+ Kb4 a5 b5 a6 h3 a7 e3 Ra5 c3+ Ka1 b2+ Ka2 c4 Qd2 e2 Ra3 Nf6 g8R Bg7 Ra6 Nh7 Rh6 Bd7 Re8 Qc8 Na3 b1B+ Ka1 Bd3 Rd8 Re8 Qe3 c2+ Bb2 c1B Bf6 c3 Bg5 c2+ Rf6 Kc3 Qe4 b4 Rf5 b3 Qg4 b2+ Ka2 Bf4 Qh5 c1B Bh4 Kd2 Qg4 Ba4 Be7 Nd7 Re5 Nb6 Re6 Qc3 Rh6 b1R Bc5 Rb2+ Ka1 Bg5 Nb5 Bg3 Rb8 e1N Qd4 Ng2 Ne2 Ne3 Rc8 Rc2+ Kb1 Ba3 Nc1 Bb4 Be2 Bc7 Bd1 Bd6 Qg4 Bf1 Nd4 Bb8 Rg1 h1Q Qg3 Ra2 Bc2 h2 Qg4 Qf3 Rh1 Qf4 Qg1 Qc7 Rd8 Qb7 Rc8 Re7 Re8 Bg3 Rf8 Rae8 a8N Re6 Nc7 Rf6 Na6 Rf2 Nb8 Bd6 Nd7 Ra3 Qg4 Bc7 Rg1 h1Q Rg3 Qh3 Rf3 Bh2 Qg1 Bc6 Rf4 Ra6 Rff6 Ba4 Re6 Nc8 Rb6 Qh4 Rb5 Nb6 Ra5 Nf6 Rg6 Qh8 Rh6 Nh7
2R5/rqq1P3/1BNnn3/N4n2/2P3n1/2r1rQ2/KRbbn1Bk/nRbqN3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb2 g5 a4 b5 h4 d5 e3 f3 h5 d3 a5 g3 a6 Kg4 e4 f5 e5 d2 h6 f4 e6 g2 a7 Kg3 e7 d4 h7 b3 Qe1+ f2 Qe3+ f3 Rh2 d1Q Nd2 d3 Be2 f1N Nb1 b4 Qe4 g4 Rh5 d2 Qe3 Na6 Qd3 Bf5 Rh1 Bh6 Qe3 Qc7 Qe4 f2 Nh3 g1N Ra3 Ne3 Ng5 f1R Ra2 Nc5 Na3 Rf3 Bd3 Ne6 Nf7 Nc2 Qe2 Re3 Nb1 Nf6 Na3 Na1 Kb1 b2 Qf1 Ne2 Rg1+ Kh2 Be4 g3 Qf3 g2 Nb5 Ng4 Re1 g1B Na3 Rc3 Nc2 Bge3 Ne5 Rhd8 h8N Rdd3 Ra3 Bef4 Ra2 Re3 Nhf7 Bg6 Ra5 Bf5 Ka2 b1N Ra6 Na3 Rb6 Nb5 Nd8 Nd6 Nb7 Bfg5 Na5 b3+ Ka3 b2+ Ka2 Bg6 Nec6 Bf5 Bd5 Bf4 Rf1 Bh7 Ne1 Bc2 Rb3 b1Q+ Ka3 Rb8 a8R Rb7 Rc8 Ra7 Bb2 Qdc1 Rg1 d1N Be4 Qd2 Bc1 Qd5 Bd2 Qc1+ Ka2 Qb5 Bd5 Qbb7 Rb2 Red3 Qe4 Rh3 Nd3 Rg3 Be3 Rf3 Bb6 Nde3 Rd1 Nef5 Ne1 Qd2 Rc1 Qd1 Rcb1 Bc1 Qe3 Rh3 Bg2 Bg5 Qe4 Bgd2 Qd5 Rhd3 Qf3 Re3
1bnq1R1N/1bbq3n/kB1N3Q/2q1q2R/2P5/1nNbr1b1/rR1q2P1/1K5B w - - 0 1 illegal: Other
RrrNB3/2B3bK/1Pbb1r1q/1n2Qnk1/1b2n3/b1BRP3/N3nnN1/7q w - - 0 1 illegal: No possible last move, all moves rejected
br1k3K/1rr5/1nQqnR2/bR1nq3/5B1b/N1bPbqRB/1B3PN1/1q6 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 g5 Ke3 c5 h4 e5 a4 b5 d3 g3 a5 c3 a6 g2 a7 g4 h5 b3 h6 g3 h7 b4 Ra2 c4 Rd2 c2 Re2 c3 Rd2 b2 Rh3 b3 Re2 Bb4 Nf3 g1N Bg2 Ba5 Nd4 Qd6 Bh1 g2 Nf3 Kd8 Rh4 Bb7 Qd2 Nd7 Rh6 Rb8 a8R Nb6 Rh4 Ne7 Ng5 Nh3 Nf3 g1Q Rg4 Nf4 Qe1 Ne6 Nbd2 b1R Rf4 b2 Qf1 Qg2 Ra7 Ba8 Rf6 Rg8 h8B Rg7 Nc4 Rh7 Bd2 c1B Qd1 c2 Nh4 Rg7 Re1 Qg4 Qf3 Ned5+ Ke2 e3 Ng2 e4 Na3 Rh7 Rg1 Rc7 Ra6 Bc3 Ra5 Qf5 Rb5 Qff4 Be1 B1d2 Bg7 c1B Bh6 Qf5 Bg5 Ba5 Bf4 Bdb4 Bc3 Rbb7 Kd1 e2+ Kc2 e1B Kb3 e3 Kc2 Ne7 Qc6 e2 Bd4 Be3 Kb3 Nbd5 Kc4 Bec3 Bde5 e1Q Bd4 Rd1 Bde5 b1Q Bd4 Ba1 Bb2 Bc3 Rh6 Qh3 Nh4 Bf6 Bbe5 Nc8 Bg2 Beb6 Rc5 Qf3 Bh3 Rd2 Rg3 Rb2 Ng2 Bh4 Rhg6 Ng5 Kd4 Rb8 Bg7 Qee7 Re6 Qdd7 Ke5 Qdd6+ Kf5 Ba7 Kg6 R2b7 Rb5 Be3 Bd4 Ncb6 Rf6 Qee5 Bc3 Ne7+ Kg7 Ned5+ Kh8 Ne6 Bd4 Bb2 Bc3 Bbc1 Bd4 Bcd2 Bb2 Bdc3
7R/bq3rn1/1R3Brn/k2b3B/2RK1bP1/2nQ1P2/3q1rNq/1Nn1nq1B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 c4 d5 a4 Kd7 g4 Kc6 a5 e5 a6 Kb6 a7 d3+ Ke3 d4+ Kd2 e3+ Ke1 e4 f3 h3 Qa4 h4 Qc2 d2+ Ke2 d1N Ra2 d3+ Ke1 b3 Qh2 b2 Qe2 h2 Nd2 b1R Nb3 h3 Rb2 Nd7 Qg2 d2+ Ke2 Ndf6 Qf2 Nh5 Qh4 Rh7 Qf6+ Bd6 Qe5 Nh6 Qg5 Be6 Qg8 Nf2 Qf7 d1N Rc2 Nc3+ Ke1 e2 Kd2 e1N Ke3 Nfd3 Na1 Rb2 c5+ Ka5 c6 b5 c7 b4 c8B b3 Qg8 Rf7 Qg6 Bd5 Ne2 Ng7 Bf5 Bf4+ Kd4 e3 Bg2 Rc8 Rf1 Rc6 a8R+ Ra6 Qh7 h1Q Bg6 h2 Bh5 Qd7 Rb8 Rg6 Rb6 Ra2 Ba3 b2 Be7 b1Q Bf6 Nc1 Rf2 Qg1 Bh1 Qf1 Rg2 Qb7 Rf2 Qb2 Nb3+ Ka4 Nd2 Ka5 Bg2 h1Q Nb1 Qh2 Bh1 Bc7 Nf4 e2 Ng2 Bf4 Rd2 Qc2 Rd3 Qb2 Re3 Qc2 Re8 Qb2 Rh8 Qd2+ Kc5 Ned3+ Kd4 e1B Re2 Beg3 Re4 Ne1+ Kc5 Bb8 Rd4 Bgf4 Rc4 Qb2 Kd4 Ba7 Qg8 Qb4 Qd8 Rf2 Qd7 Qb2 Qf5 Qc2 Qd3 Qd2
1k1K1Nb1/1N5Q/B1rr1N2/3B1q2/2rP3P/n2n1n1R/2rB1bbn/2nR2qq w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 g5 a4 f5 e4 b5 e5 c5 a5 Kc7 a6 c3 d3 b3 a7 b4 e6 f3 Ke3 c2 e7 c4 e8B c3 Bd2 c1R Ba4 g3 Bb5 c2 Be1 f2 Be2 f1B Nf3 b2 Bf2 b3 Ba6 g2 Be1 g1Q+ Bf2 f4+ Ke4 g4 Ke5 g3 Bd4 g2 Nh2 f3 Nc3 b1N Ra3 f2 Bb7 b2 Qd2 Bc5 Ra6 Nh6 Qe3 Be6 Bc6 Qd7 Kf6 Na3 Qh3 b1R Bcf3 Nc6 Be4 Rac8 a8N+ Kb8 Nb5 Rb4 Qf5 Rhe8 Qh7 Bg8 Nb6 Ne5 Ng4 Rc4 Rh3 Rc6+ Nd6 Nhf7 Ra5 Nf3 Bc3 N7e5 Bd5 Qh1 Bd2 g1Q Ra4 Be3 d4 Nd3 Rb4 Re7 Rb1 Bg2 Ra1 f1N Rb1 Rc7 Nb7 N1h2 Bf1 Bf2 Be2 Re1 Rd1 c1N Bf1 Qb5 Be2 Re8 Bf1 R1e2 Nd7+ Ka7 Nf8 R7c6+ Ne6 Rec8 Ke7 Kb8 Nf6 Rc2 Kd7 R6c4+ Ke7 R8c6 Kd7 Qc5 Nf8 Ree6 Kd8 Ra4 Bc4 Qf5 Ba6 Rac4 Be2 Nfe1 Bh5 Nef3 Bf7 Re5 Bd5 Re3 Na5 Ree6 Nb7 Red6+
qBbQq1bB/1nbNnr2/2R2rPb/2qB4/3Nn3/R1q3k1/1P3r2/1KRq4 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 f4 Kg6 g4 a5 c4 e5 Kc2 h5 g5 Kf5 c5 d5 g6 e3 c6 h3 c7 e2 Bd2 Kg4 f5 d3+ Kc1 e4 f6 a3 f7 e3 Qa4+ d4 Bc3 e1B Nf3 h2 Bh3+ Kg3 Qc2 a2 Rf1 h1Q Bf5 h4 Qe2 a4 Qc2 d2+ Kd1 h3 Qd3 e2+ Kc2 d1N Rf2 a3 Bd7 h2 Bh3 Rh7 Kc1 Ne7 Qe4 d3 Qe3 d2+ Kc2 Qe8 Qh6 Ra6 Bf5 Nbc6 Ba5 Qg1 Qe3 h1B Bb4 Bh6 f8B Nc3 Bg7 Ne4 Qd4 Na5 Qd8 Nb7 Nd4 Rf6 Bh8 Rhf7 Be6 d1R Bd5 Rd2+ Kc1 Bg2 Nc3 Bh1 Rb1 a1Q Na4 a2 Rf1 Bf2 Rd1 e1Q Nc5 Qe3 Nd7 Qc3+ Nc2 Bd4 Bd6+ Be5 Re1 Qgc5 Re3+ Bf3 Rd3 Q3a5 Rb3 Qac3 Ra3 Bg4 Nb6 Bce6 c8R Bgf5 Bb8 Bc7 Nd7 Rf2+ Kd1 Bh3 Rc1 Qb1 Nd4 a1Q Rb3 Qa8 Ra3 Bcf4 Rc6 Bc7 Ne5 Bc8 Nd7 Be6 Ra2 Rh7 Ra3 Qa2 Ra1 Bg8 Rb1 Rc2 Ra1 Qab3 Rc1 Rcf2+ Rc2 Kf4 Kc1 Rhf7 Kb1 Kg3 Rc1 Qd1
Bq1n1n2/1NnR4/1K1PnB1R/b1NqP2r/5kB1/bN1b3r/Q4q2/rq4n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 e4 Ke6 d4 c5 a4 h5 g4 f5 g5 b5 g6 f3 Ke3 f4+ Kf2 c3 d5+ Ke5 g7 b3 a5 h3 a6 h2 a7 h4 Ba3 b2 Ra2 c2 Bc4 c1B Ne2 b4 Re1 h1N+ Kg1 h3 Qc2 h2+ Kf1 b3 Rd1 f2 Bd3 c4 Kg2 f1N Kf3 c3 Rd2 Nhg3 Bc5 h1R Bf2 R8h3 Nd4 Ne2+ Bg3 Nd7 Nf5 Bb4 Nd4 Ng1+ Kf2 Ne3 Nb5 Nh6 g8N Nf7 Nd4 Nf8 Be2 Ba5 Bd1 Ba6 Na3 b1Q Bg4 b2 Nf6 Bd3 Bh4 f3 Nb3 Kf4 e5 Qd7 Nb5 Nd8 Ne4 Qd6 Qd1 c2 Bf6 Rh5 Qf1 R1h3 Qg2 Qb8 Ra1 Qa2 Nec5 b1Q Nd6 Ba3 Ndb7 c1N d6 Nce2 Rc2 Nd5 Rb2 Qc8 Rc2 Rb8 a8B Nd4 Rd2 N4e6 Rc2 Ne2 Rc1 Ndc7 Rh1 Qac2 Ra2 Qc4 Rb2 Qd5 Rc2 Rg3 Rh4 Rh3 Rc1 Rf5 Rh6 Rfh5 Rh1 Ng1 Rh7 Rg3 Rh4 Rh3 Rd7 Rg5 Rh6 Rgh5 Bg7 Kg5 Ke3 f2+ Bf3+ Kf5 Bf6 f1Q Qa2 Bb6 Kd2 Kf4 Kc3 Qf2 Bg4 Bb2+ Kb4 Ba5+ Ka4 Bc1 Na1 Ba3 Nab3 Bc3 N7a5 Rb6 Nab7 Qb8 Rg7 Rb4+ Ka5 Ra4+ Kb6 Bab4 Qe2 Ra1 Qa2 Ba3 Rd7 Ba5+
1B1n2b1/1B1nq2b/R1P5/1P4k1/2bb1r2/N1nrq3/1rRnQRbq/1N2KN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 b4 Ke7 g4 Kf6 e4 d5 c4 h5 c5 a5 c6 h3 e5+ Kg5 e6 f5 b5 h2 e7 a3 e8R a2 Qe2 a4 Qf2 h4 Re3 d3 Qg3 d2+ Ke2 d1N Ke1 f3 Na3 f2+ Ke2 f4 Bb2 h3 Be5 d4 Bd6 f3+ Kd2 d3 Qe5+ Bf5 Qg3 Qe7 Rc1 a1N Nb1 a3 Re4 a2 Rc2 Rh4 Re3 Nh6 Rc4 Bg7 Bc5 Nf7 Bb6 Nc3 Qc7 Bd4 Ba7 Nd8 Ne2 Bh7 Na3 Nd7 Bb8 Ra6 Rg1 h1B Ng3 h2 Bh3 f1B Re2 Bfg2 Ke1 Nb3 Nf1 Nd2 Qd6 Ra4 Qe6 Rb4 Rf2 Rb2 Qe2 Qe3 Ra4 Bg8 Ra6 a1Q+ Nb1 Qa2 Na3 Qb3 Ra5 Qbe6 Ra6 Kg6 g5 Rf4 Bg4 Qe7 Be6 Kh5 g6 Kg5 Bg4 Bh3 g7 B1g2 Bf5 h1Q Bg4 Bh7 g8N Qh2 Nf6 Bg8 Be6 Bf5 Nd5 Bfh7 Rh1 Ne5 Bc8 Nd7 Rg1 Kg4 Ng3 Ndb1 Bb7 Kg5 Rff1 Na4 Nc3 f2+ Kd1 d2 Re1 B2d5 Rg2 Bc4 Rh1 f1B Rf2 Bg2 Re1 Nac5 Nf1 Ne4 Qd3 Qeg3 Ke2 Qgh3 Rc1 d1R+ Rc2 Rd2+ Ke1 Qe3+ Qe2 Rd3 Ra7 Nbd2 Ncb1 Nc3 Ra5 Q3e5 Ra6 Qe3
1qN2n1R/1n3krR/P1B1N1qQ/q3Rb1r/4bbbn/8/1n1P1B2/1Nr2K1n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 f5 g4 h5 e4 c5 a5 b5 e5 b3 e6 c3 g5 c4 g6 b4 e7 c2 a6 f3 g7 h3 Bd3 c3 Bb5+ Nd7 Bb2 c1R Ba3 f4 Bc6 h2 Kf1 f2 Bb2 h4 Ba4 c2 Bf6 b2 Be5 h3 Bc7 b3 Ne2 Kf7 e8R Rh5 Rg1 h1B Re4 h2 Re5 Ra7 Re6 Nc5 Rg3 Be4 Ra3 h1N Re3 Ne7 g8N Ng6 Rd3 Bd6 Ra1 Nb7 Nd4 Nf8 Re5 Bcf5 Na3 b1Q Ne2 b2 Bb8 Qa5 Ng1 Bc7 Ke2 f1N Rh3 Ne3 Ne7 Ng2 Kf1 f3 Bc6 f2 Ne2 Nh4 Nd4 Bd6 Ne6 Bc7 Rb5 Bf4 Nc8 Bg4 Re5 Bgf5 Ke2 f1B+ Ke1 Be2 Bd6 Ng3 Bc5 Beg4 Bf2 Nh1 Rh2 Qa2 Rh3 b1Q Kf1 Qab2 Rh2 Qbb6 Qe1 Q1b4 Nb1 Qd6 Ra3 Qbc7 Rah3 Qb8 Nc7 Qg6 Ne6 Bd1 Qe3 Bdg4+ Be1 Rd1 Qb6 c1N Qe3 Nd3 Qb6 Bg3 Qe3 Rc1 Qh6 Bd1 Bf2 Bf4 Rf3 Nb2 Rd3 Nc5 Rd8 Rc7 Rh3 Nb7 Rd7+ Kf6 Rh7 Rg7 Rd3 Kf7 Rd8 Nd7 Rg8 Nf8 Rgh8 Bdg4+
rN1B4/2Q1qPkN/2R5/Rb2Pnn1/4r1q1/2Kbr1qB/RB2q2b/r1q1n3 w - - 0 1 illegal: No proof kernel
Q1N1NRr1/5P1b/1K1P3b/Br1Bq3/1Rq5/2r2Rn1/2Nrn3/b1k1nnqr w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Ke3 Kc5 a4 b5 f4 h5 g4 h3 f5 b3 d4+ Kb4 g5 c5 g6 h2 f6 c3 d5 c4 a5 b2 a6 h4 g7 h3 d6 c2 a7 Kb3 f7 c3 Qg4 b4 Qh4 Qc7 Qf6 Nc6 Qf3 Bf5 Ne2 Nge7 g8N Rh5 Bd2 c1B Rg1 Kc2 Rg2 h1N Nh6 b3 Rg7 h2 Nf4 Nd4 Qg3 Ne2 Qg2 Bh7 Qg3 Qc4 Rg8 Bg7 Qg1 Nhg3 Ra4 h1R Bg2 Nef5+ Kf2 e3+ Kf3 e4+ Kg4 Nf1 Rf8 N5g3 Rb4 Rc5 Nd5 Kd1 Be1 c2 Na3 b1R Nf5 Ba1 Nf6 b2 Ne8 Bd2 Bf3 c1R Ne7 Rc3 Qg2 Kc1 Nc2 Rb8 a8R Rh2 Ra3 Ra8 Rh8 Rd8 Ng7 Rg8 Nc8 Nd4 Ra2 Rh1 Kf4 e2+ Ne3 Rc2 Nf5 Rd8 Rg8 Rc7 Rh8 Nh2 Ke5 Nhf1 Ng4 Kd1 Qh2 e3 Ba8 Rbc1 Rb5 b1Q Qg2 Nh2 Ra3 Qb2 Qd5 Nhf1 Rb7 Qb6 Nf6 Ra2 Qa5 Rcc2 Rb8 Kc1 Bd5 Rf8 Qa8 Qa7 Bf2 e1Q Ne8 e2 Ne3 Rab2 Rd3 Rb3 Bg1 Rbc3 Rb4 Ra2 Nd1 Bh6 Ne3 Rd2 Nc2 Ne6 Rg8 Nf4 Bb6 Rc6 Ba5 Qg1 Rg4 Rh8 Rg8 Rc7 Rf8 Rg8 Kf6 Rc6 Ke7 Rc5 Kd7 Qef2 Na3 Qe3 Nc2 Qe5 Re3 e1N Rf3 Nfe2 Kd8 Nd4 Kd7 Nc6 Kc7 Nd4+ Kb7 Nde2 Kb6 Rb5+
bqnr1b1r/P2KN2B/3BN1P1/5rq1/Q1b1RR1R/4qn1n/2n1qB2/1k1n4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 h5 c5 b5 c6 d5 g3 e5 a5 e3 Kf3 b3 a6 h3 a7 d3 c7 b2 Ra6 d2 Be2 h2 Nh3 b4 Qf1 d1Q Ra5 h4 Na3 b1Q Nc4 e4+ Kg2 b3 Ra4 b2 Ne5 d4 Ra1 d3 Qf3 d2 Ng4 Ba6 c8R Bc4 Re1 h1B+ Kh2 Nc6 Bf1 e2 Ra4 e3 Ne5 Nd4 Ng5 h3 Ng6 Nc2 Qc6 Ne7 Ne6 Qa5 Rb8 Nc8 Rbb4 Qd8 Qa6 Ke4 f5 Kd3 g4 Qg5 Kg3 h2 f6 Rb8 f7 Ba8 Qc6 h1N+ Kf3 Kc3 Ne7 Nf2 Bg2 Nh3 Ke4 Rb5 Rf1 e1N Rf4 e2 Bf3 Qh6 g5 Rf5 Bh5 Nf3 Bg6 Qe1 Bh7 d1N g6 Qg5 Be3 Qc1 Bf2 b1Q Rh4 Qb3 Rf4 Kb2 Rh4 Bg7 f8B Kb1 Rf4 Qf1 Rh4 Nce3 Rf4 e1R Rh4 Qe2 Rf4 Ne5 Kd4 Qcb2+ Kc5 Nc2 Qd7 Qbe3+ Qd4 Nb6 Kd6 Nf3 Rh4 Nc8+ Kd7 Ba2 Rc4 Qb8 Qg4 Bh6 Rf4 B2d5 Rae4 Bc4 Nc6 Bg7 Bd6 Bf8 Ne7 Ncd4 Re5 Ba6 Nc6 Qc1 Ng7 Nc2 Ra4 Qd3 Qc4 Qca3 Qb5+ Qab3 Raf4 Re4 Re8 Qe2 Qa4 Qbe3 Re7 Bc4 Re8 Re6 Re7 Ref6 Re5 Re6 Ree4 Re8 Ne7 Q3d3 Ne6 Qd4 Qa5 Qde3 Qa4 Rd8+
2b1QK2/2Bn1n1b/kb5n/N1rb1NN1/3b1n2/qr1PnP2/2Bn2rR/1RB5 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 e5+ Kg6 c5 Kf7 g5 a4 e3 h4 b3 a5+ Ka6 f3 b5 h5 e2 h6 e1N h7 g3 Bg2 b2 Nc3 b1B Bf1 g2 Rh5 b4 Ra3 b3 Ne4 g4 Nc3 e4 Nh3 g1R Nd5 g3 Re5 g2 Rg5 b2 Rc3 e3 Rd3 e2 Re5 c3 Ree3 c2 Ndf4 c4 Rc3 Qd3 Re5 Ba2 Nd5 b1B Ke8 Nd7 Rf5 Bg7 Re5 Rb8 Nf6 Rb3 Rg5 Nh6+ Ng8 Bd4 Rh5 Bb6 Ke7 Qd6+ Ke8 Qa3 Ng5 Nd3 Qe1 N3e5 Rh2 Nef7 Rd3 c3 Rd5 Rb2 Rb5 Bd5 Rb4 Rb3 Ke7 Ng4 Nh6 Rd8 Nf5 Ngh6 h8B Rf8 Bb2 c1N Be5 c2 Bc7 Nd3 Bc1 Bd4 Ne6 Rg8 Ng5 Rg6 Ke8 Rc6 Rb7 Rc5 Rb5 Ka7 a6 Nf4 Rb8 Rh1 Rb5 g1B Ke7 Bgf2 Rb6 Rg1 Bh3 Nde5 Kf8 Rg2 Bg4 Bfe3 Bh5 Bf2 Bg6 Bg1 Qf1 e1N Qb5 Bge3 Qe8 Bg1 Bb2 c1N Rb4 Ncd3 Bc1 Nb2 Rb6 Nbc4 Rb5 Ka8 a7 Nc2 Rb4 N2e3 Rb6 Rc3 Rb3 Bbe4 Rb1 Rb3 Bh7 Kb7 a8N Ka6 Nb6 Nf1 Bg6 Nce3 Nc4 Bf2 Na5 Bg1 d3 Nd2 Bh7 Bf2 Bg8 Bg1 Ne7 Bh7 Nf5 Nh8 Be6 N8f7 Bd7 Bf2 Ba4 Nd7+ Ke7 Rb8 Qg8 Rcb5+ Rb4 Bg7 Bd8 Nc2 Bc7 Bc5+ Ke8 Ne3 Rb1 Bgd4 Bc2 Rb3 Qh8 R8b5 Qe5 Bb6 Qe7 Nf6+ Kf8 Rc5 Qe8 Nd7+
2N2rb1/KRn2b1N/rr2P1BQ/R3nr2/bNP1k3/5bb1/2qrn3/1RB1r3 w - - 0 1 illegal: No possible last move
r1n1Nr2/n2b4/RPb3k1/6B1/1Pnn2bq/2RNb2b/2BBn2K/nr1QR3 w - - 0 1 illegal: Other
1q3bb1/2kqnqQn/q2r3P/1r5R/PNB2B1n/R2q2R1/q3N1n1/n1N4K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 Kg2 g5 h4 f5 a4 d5 e4 Kd7 c4 f3+ Kh2 g3+ Kh3 d3 c5 g2 Kh2 d2 e5 d4 c6+ Kc7 h5 f2 h6 g4 e6 b3 e7 d3 e8R b2 Re3 b4 Nc3 b1Q Rf3 g3+ Kh3 b3 Nce2 b2 Rf4 Ra6 Ra2 Be6 Rh4 f4+ Rg4 f3 Ra1 Qa2 Nc3 b1Q Qb3 d1Q Qb4 d2 Nce2 Qdd3 Qa3 Ne7 Rh2 Bg8 Rd4 Nd7 Re4 Nf6 Rg4 Qb8 Rg6 Nh7 Qc5 Ra5 Qc3 Rb5 Rf6 Qdb3 Nf4 d1N Qc5 Ne3 Nfe2 Nc2 Rg6 Qf7 Qc3 Qd7+ Rg4 Qd3 Qg7 Qd7 Rb1 Na1 Rb3 Qd3 Be3 Qd7 Nc1 Qd3 Nge2 g1Q Rg6 g2 Rg5 Qh1 Ra3 g1N+ Kg3 Qd7 Rg2 Qhh5 Rd5 Qhf5 Kh2 Qe4 Rg3 Qd3 Bh3 f1Q Kh1 f2 Rh5 Qde6 Bg5 Qed7 Be6 Nf3+ Rg1 Nh2 Bc4 Nf3 Be3 Nh4 Bf4+ Kb6 c7 Kc6 c8N Kb7 Nd6+ Kc7 Nd4 Qfe2 Nc6 f1N Nb4 Ne3 Rg3 Neg2 Ne4+ Q3d6 Bd2 Qed3 Nc3 Qa6 N3e2 Nf6 Qg4 Rh7 Qd4 Rg7 Bg5 Nh7 Qf6 Rg6 Qg7 Rc6 Bf4+ Rd6
n3Rr2/3KRPP1/1bn2bn1/1b1Q2RN/1Bb4N/bBq4b/2r1b1B1/b4rk1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 a4 c5 g5 b5 d3 h5 f3 e3 g6 h3 a5 e5+ Kg3 c3 f4 e4 a6 e2 g7 e1B+ Kh2 b3 f5 e3 a7 e2 f6 b2 f7 c2 Ra4+ c4 Ra3 h4 Ra1 b4 Ra5 c3 Rc5 b3 Rf5 Rh5 Rg5 Qa5 Rg2 Be7 Rg5 Bf2 Bg2 e1B Bb7 Nc6 Qd2 Bf6 Rg2 Nge7 Rg5 Ng6 Re5 Rf5 Na3 b1B Qg5 b2 Qd2 Ba2 Qg5 b1N Qg2 Bc4 Re7 Nd2 Nb1 B8e6 Qf3 Rf8 Qd5+ Ke3 Ba3 c1R a8B c2 d4 Qc3 Nf3 Be2 Bc8 Nc4 Nbd2 Nb6 Ne4 Bd7 Bab7 Na8 Rg1 Bb5 Bb4 Bc4 Kh1 h2 Kg2 h1B+ Kh3 Bg2+ Kg4 h3 Nh4 Be8 Be6 h2 Ng3 h1B Nh5 Bf3+ Kh3 Bfe2 Rg5 Bg1 Rd7 Bd2 Re7 Bg2+ Kg3 Rf3+ Kg4 Kf2 Bf5 Kf1 Be6 Bf4 Kf5 Kf2 Bd7 B4e5+ Ke6 Rf5 Bdc8 Bh3 Bd7 Nb8 Ba4 Beb5 Bb3 Nc6 Kd7 Kf1 Qf3+ Bf2 d5 Bd4 d6 Bde5 Qd5 Bb6 Ng3+ Kg1 Nh5+ Qg3 Ke6 Bb2 d7 Ba1 Ng2 Qc3 d8R Rb1 Rb8 c1B Rbe8 Rb2 Kd7 Rc2 Nh4+ Bhg4 Nf4 Ba3 Nh5 Nd4+ Bc6 Rf3+ Qe6 Rf5 Ng3 Bh3 Qd6 Ba6 Bg2 Nc6 Nh5 Bab5 Qd5 Rf1+
2n4b/q2n1K1P/7B/qrnr1P1q/N3B1qr/4Rb2/RRnQ1qk1/2rB3N w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1N a5 g3 h5 d3 h6 g2 a6 g4 a7 d2 Ra3 d4 Ra1 e3 Qc2+ d3 Ra3 Ke4 f5 d1N Bb2 e2 Ra5 g3 Ba3 Nc3 Rh5 Bg7 Qd1 d2 Qc1 d1Q+ Kb2 b3 Rg5 b4 Ra6 Nc2 Ra4 e1Q Bc4 Qf2 Qd2 Ne7 Qd6 Qg4 Qd1 Bb7 c8B Qa5 Nh3 g1Q Be2 g2 Qd2 Nd7 Bd1 Rd8 h7 Bh8 Rh5 Bd5 Ba6 Nc8 Bb7 Rb8 Bc6 Rb5 a8R Qfa7 Rh6 Qgf2 Rb8 g1Q Ba8 Bc6 Rd6 Qg5 Rd3 Q1g4 Rb6 Ne5 Rb8 Rdd5 Bb7 Nd7 Ba8 Ke5 Re3+ Ne4 Nc3 Bb7 Ng1 Kf4 Ne2+ Ke5 Ng3 Kf4 Nh1 Nec5 Kb1 b2 Ka2 b1R Bc1 Bc6 Ra3 Rb3 Na4 Rc3 Kb2 b3 Ra2 Rb4 Rb5 Rbd4 Rb8 Rcc4 Bb7 Rb4 Kc3 b2 Ba8 b1R Rb5 Rd6 Bb7 Bf3 Be4 Rh6 Rb6 Rh4 Rb5 R4b2+ Rb4 Rd5+ Kc4 Nb8 Rb7 Rb5 Rb6 Rd8 Rb7 Nbd7 Kd5 Ra1 Bb2 Rb1 Bg7 Rc1 Bh6 Qf1 Nf2 Kg3 Nh1+ Kh3 Rb6 Qf2 Rb8 Kg2 Rb7 Na6+ Ke6 Nac5+ Kf7 Re8 Rb8 Re5 Rb6 Rd5 Rc6 Rb7 Rb6 Rb8 Rb1 Rb5 Rbb2 Q5h5#
N1n1nn2/5N1K/1bbr3n/3Rqn2/nRPB4/Rr1BnPk1/1N3bn1/1Q2q3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Ke6 g4 Ke5 c4 Kf4 f3 h5 a5 d5 a6 b5 g5 e5 a7 h3 g6 h2 g7 b3 Nh3+ Kg3 Bg2 b4 Ra3 e3+ Kd3 e4+ Ke2 h4 Ng1 d3+ Kf1 h3 Bb2 e2+ Ke1 d4 Kd2 e1B+ Kc1 e3 Ra5 e2 Ra1 Qc7 Nd2 Rh6 Ra2 Nf6 g8N Bb7 Kb1 Bf2 Bc1 e1N Ra5 b2 Nb3 d2 Nc5 d3 Qa4 d1Q Ra6 d2 Bf1 Bc6 Qa1 Qe5 Nd3 B8c5 Ra3 Ng2 Ra2 Qde1 Kc2 b1N Rb2 d1N Bg5 b3+ Kc1 Nd2 Qb1 Bb6 Ne7 Ne8 Be3 Ne4 Bd4 N4d6 Nd5 Nc8 Nc7 Nd7 Rd2 b2+ Kc2 Rb8 a8R Nf8 Ra3 Rd6 Na8 Qb5 Re2 Qd5 Re5 Qde4 Rd5 Qe5 Nf4 Nde3+ Kd3 Qh5 Ke4 Qg5 Qd1 b1N Nd3 Qh5 Nb2 Qe5+ Kd3 Nc3 Qb1 Na4 Be2 Ba7 Bf1 Rb4 Be2 Bb6 Bf1 Qh8 Ke4 Rb3 Bd3 Nc2+ Kf5 Nce3+ Kg5 Qg7+ Bg6 Qf6+ Kh6 Qe5 Ne2+ Kh4 Nf4 Kg3 Rf1 h1N Ne6 h2 Be4 Kh3 Bc2 Ng3 Bd3 h1N Rg1 Ne4 Rf1 N4f6 Nd8 Ng3 Nf7 Ngf5+ Kg5 Ne6+ Kg6 Nfg4 Kh7 Kg3 Rh1 Nec5 Rh6 Nd7 Re6 Ngh6 Re7 Ndc5 Rb7 Ne6 Rb8 Bc5 Rb5 Bb6 Rb4 Nf8#
7n/B1r1N3/rqnb1q2/QP3bRb/r2R1bNb/2RBbPBk/8/2bK3b w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 b4 Kf7 c4 Ke6 h4 Kf5 b5 d5 h5 e5 h6 g5 h7 a5 c5 d3 c6 d4 c7 d2+ Ke2 a3 Bg2 a2 Bh3 e3 Rh2 e4 Rg2 d3+ Kf1 a4 Qb3 d1B Ke1 d2+ Kf1 a3 Rh2 e2+ Kg2 e1B Kf1 e3 Qa4 e2+ Kg2 Nc6 Rh1 Ra6 Qa5 Nh6 Nf3 Bd6 Rf1 Qf6 Ng1 Nf7 Qa4 Bb7 c8R Bc2 Qb4 d1B Qa5 Bd2 Qc3 e1B Qb3 B2f4 Qc3 Rd8 h8B Rd7 Qa5 Rc7 Bg7 Nh8 Nc3 Ba8 Rb1 a1B Nf3 a2 Nh2 Bb2 Rg1 a1R Kf1 Ra4 Be3 Bc1 Rb4 Bb1 Bg2 g3 Ba7 Bh5 Nd5 g4 Ke2 Kg5 Bh6+ Kh4 Rd4 Bf5 Bf1 g2 Kd1 g3+ Ng4 Kh3 Ne7 Bb7 Bd3 Ba8 Rf1 g1Q Bg5 g2 Bh4 Qh1 Rg8 g1B Bg3 Qe4 Rg5 Qe3 Rd5 Qb6 Rd4 Bed2 Re1 Bde3 Re2 Bh2 Rc2 Bb7 Rg8 Bg5 Rc3 Bh4 Rg5 Nb8 Be2 Bh1 f3 Nc6 Bc4 Bdf4 Bd3 Bd6 Bf2 Bhe5 Bg3 B5f4
qNR5/1q1Nn3/bN2K2B/n1PBQnrr/1r3q1b/2bk4/bPnB2R1/4q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Ke5 Kc4 Ke4 h4 a5 c3 d5+ Kb5 g5 h5 f3 h6 g3 e3 g4 c4 f4 h7 a3 c5 d3 Qc2 a4 Qc3 d2 Qb3 d1Q Qa2 g2 Rh4 f2 Kb4 d4 Kc4 f3 Qb3 a2 Nh3 g1B Qa3 d3 Bg2 f1Q Bh1 d2+ Kb4 Ne7 Bg2 Qd7 Qb3 a3 Qg8 Bf2 Qe6+ Kd3 e4 g3 e5 Bg7 Ng5 Qde1 Ne4 d1B+ Bd2 Bb3 Rg4 Ba6 Nf6 Bbc4 Bh1 g2 Nc3 g1R Rg2 Bh4 Ncd5 f2 Nb6 Qb7 Nd7 Bb3 Rd1 a1N Qf6 a2 e6 Ra7 Qe5 Bgf6 Rg7 Rg3 Bd5 Rg5 Rg8 Bbc4 Rc8 Ra8 Rc1 Bg7 Rc2 Nbc6+ Ka3 Na5 Kb4 Bf6 Nb8 Bb3 Rc4 Bg7 Rg4 Ra7 Rg2 Bbc4 Qc7 Bd4 Qe5 Bc3+ Ka3 Nc2+ Ka4 Rhg8 h8B Rh5 Bg7 Ra8 Bgh6 Rgg5 Qh8 a1N Qg7 Ba2 Qe5 Ne3 Ka3 Nac2+ Ka4 Ng8 e7 Qh1 e8N f1Q Nf6 Ne7 Nfd7 Ra7 Rh2 N3f5 Re2 Qa8 Rg2 Bb7 Kb5 Qf4 Na4 Ba6+ Kb6 Bb7 Kc7 Ba6+ Kd8 Rb7 Nab6 Qh3 Ke8 Qhf3 Kf7 Q3e4 Ke6 Qef3 Na4 Rb4 Nab6 Q3e4 Bb3 Qeb7 Bd5 Qg4 Nc6 Qc4 Ncb8 Qf4
1nbB3q/bb1qP1Q1/2qr1b2/3knq1r/nP2nR2/2B3R1/5R2/1N1K1rNB w - - 0 1 illegal: No possible last move, all moves rejected
3n4/5k1B/qqNB1rr1/1r6/1bPnpB1n/1bKnq1P1/R2N2b1/1Q3nNR w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 b5 f4 e5 c4 d5 a4 h5 a5 b3 g3 d3 f5 d4 f6 b4 a6 b2 a7 h3 Na3 b1R Bb2 h2 Ra2 b3 Qe2 h4 Qg2 h3 Nc2 Ne7 Ra5 Rg8 Na1 Bb7 Nf3 Qc8 Ne1 Ng6 Rc5 Kf7 Nac2 Nh4 Na1 Rg6 Nf3 Nc6 Rb5 Nd8 Qf2 Bb4+ Bc3 b2 Rg1 h1N Rd5 h2 Qe1 Nf2 Bg2 h1Q Rf1 Qg1 Qd1 e3+ Ke1 e2 Kd2 e1N Nb3 Nc2 Ra5 Bd5 Bh3 Qa6 Bf5 Rc8 a8N Rc6 Nb6 Be4 Ne1 Bg2 Nf3 e4 Nc8 Rb6 Na7 Rb5 Bd7 Rc1 Nc6 b1Q Ra2 Qb2 Bf5 Qba3 Nh2 Qb6 Qe2 Qaa6 Nf3 Re1 Qd1 Re2+ Kc1 d2+ Kb2 d3 Be5 Nd4 Qb1 d1B+ Nbd2 Bb3 Bf4 Re3 Rd1 Qe1 Ng1 Rf3 Rc1 Qe3 Re1 Rg4 Bh7 Rg6 Nf1 d2 Rc1 Ke6 f7 Kf6 f8B Kf7 B8d6 d1N+ Ka1 Nd3 Nd2 N1f2 Rf1 Ng4 Rd1 Nh2 Rc1 Nf2 Kb2 Nf1 Rd1 Bc5 Re1 Nd3+ Kc3 Rf2 Bg5 Rf5 Bgf4 Rff6 Ngf3 Nh2 Rh1 Nf1 Ng1 Bb4+
B1N3Qr/4B1Bq/3K3R/3bp1qN/qqnb1n2/Pk1n3R/qPb5/2R3rr w - - 0 1 illegal: No possible last move
n4r1n/Q2B1b2/1b1qP3/1q1N2K1/bNB1PN1r/4pkBR/1b4b1/2Rnr1q1 w - - 0 1 illegal: Other
1k4rb/q1R1bB2/2Kpb1Pn/n2rr1B1/N2R4/2N2QRP/N2n2q1/b3bq2 w - - 0 1 illegal: No proof kernel
2n2q2/1R3b1n/BPbr4/1N1R1Kq1/2q1BPp1/rn1q1qBr/k5Nb/5R1Q w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 c4 Ke6 b4 d5 h4 a5 f3 g5 c5 g3 c6 e3 Kd3 a3 c7 a4 h5 e2 h6 e1Q b5 a2 b6 g2 h7 a3 Nh3 g1Q Bd2 Nf6 Qa4 Bd7 c8B Qe2+ Kc2 d3+ Kc3 d4+ Kc4 Nc6 Qa5 Na7 Be3 d2+ Kc5 d1B Nf2 d3 Kd4 d2 Bb7 Bc6+ Kc3 Nc8 Qa6 Kd5 Bf4 e5 Rh3 e4 Rh1 e3 Bc7 Bd6 Nd3 Bh2 f4 Qf3 Nf2 e2+ Nd3 e1R Qa4 Qf8 Bd8 Re6 Bg2 g4 Ba6 Qf1 Be7 Be2 Qd1 Rd6 Kc2 Ra7 Ne1 Bc4 Nc3+ Kd4 Qb1 Bf7 Nb5+ Kc4 Bd8 Q1e2 Rf1 Qe5 Bh1 Qg5 Ng2 Ra8 Qd1 Ra7 Rb1 a1Q Rb3 a2 Rd3 Qae5 Rd5 Qe6 Be7 Rdd7 Bc5 Rd6 Bf2 Kb4 Bg3 a1N+ Kb2 Nb3 Kc2 Rg8 h8R Nh7 Qb1 Rg6 Rg8 Rh6 Rg7 Rh3 Qe1 Bfe8 Rb7 Bf7 Nd4 Ka3 Nb5+ Ka2 Qe4 Qd1+ Kd3 Qc2+ Ke3 Qd7 Qf3 Qc5+ Kd3 d1Q+ Ke4 Qc4+ Nd4 Qgd8 Ke5 Qdd3 Nb5 Ra8 Qd1 Qf3 Qc1 Q7e7+ Kf5 Qee2 Ne1 Qfd3+ Be4 Qef3 Ng2 Qh4 Qe3 Ra7 Qg1 Qhh6 Qh1 Qg6+ Ke5 Qg5+ Bf5 Qgh6 Be4 Ra8 Kf5 Nd2 Na3 Nb3 Bb5 Ra4 Ba6 Qhg7 Nb5 Ra3 Rd1 Qh6 Rf1 Qg5#
rn5N/Bn4rQ/Ppq1b1rR/1P2b1B1/3N1B2/3k1bqn/1RN5/q1Kbb3 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 g5 cxd4 g6 a4 Ba6 hxg6 Bd3 g5 Bc4 g4 Bb3 axb3 Kd2 Kf7 a4 Kf6 h4 Ke5 c4 d5 c5 g5 f3 e3+ Ke1 e2 Kd2 e1Q+ Kd3 b6 h5 g3 h6 g4 b5 g2 a5 b2 Kc2 g3 h7 d3+ Kb3 Kd4 c6 e5 a6 e4 c7 d2 Kc2 e3 f4 e2 f5 Nh6 f6 Bd6 f7 Qe8 f8B Be5 Bg7 Rg8 h8B Nf7 Rh7 Nd6 Na3 Nb7 Bh6 Rg6 Ra2 Be6 c8N Qc6+ Kb1 Ke4 Nf3 g1R Bg5 g2 Nc2 d4 Rh6 d3 Nfd4 Qg3 Ne7 e1B Qh5 d1B Bcf4 d2 Qh2 Rg7 Ng6 Bf3 Qh5 d1B Qh2 Re7 Bhf6 Rg7 Nh8 Rg6 Be7 Kd3 Bd6 Rf1 Bc7 g1N Qh1 Nh3 Qh2 Nd7 Bb8 Rg1 Ba7 Nb8 Ra4 Nf2 Rb4 Rg7 Qh5 Nh3 Qf7 Rg6 Qh7 Bf5 Ka2 b1Q+ Ka3 Qc1+ Ka2 Qa3+ Kb1 Be6 Rb2 Qa4 Kc1 Qa1+ Rb1 Qh4 Bf6 Rg4 Nf5 Rg7 Nd4+ R4g6 B6g5 Qa2 Rb4 Qg3 Rb2 Qa1+
BRN1k1bb/nPrb2rn/5p1K/RNP1q1N1/Q1B3b1/r7/3b1b1b/5nB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 c4 a5 h4 d5 e4 d3 b4 d4 b5 a3 e5 a4 e6 f3 c5 a2 h5 f2 e7 a3 h6 g3 h7 g2 b6 g4 Qe1 g3 Rh2 Nf6 Nf3 g1B Qd1 g2 Qe2 Rg8 h8N Bd7 Qe1 Ra7 Nh4 Nh7 N4g6 Rc7 Nh4 Bh6+ Qe3 Rg7 N4g6 Nc6 Qf4 Qb8 Nc3 Na7 Nb5 Bg5 Rb1 a1R Be2 a2 Bf3 f1B Ba8 Bf2 b7 g1B Rb3 Nf6 Ra3 Nh7 Ra5 Bh6 Rh5 Bh2 Rg5 Bg2 Qg4 Bh1 Qd1 Bd5 Qa4 f6 Nf7 B5e6 Kd1 d2 Ke2 d1N Kf3 d3 Be3 d2 Rg2 Bc4 Ng5 Bg8 Bd4 Ne3 Rg1 Nf5 Kg4 Ne3+ Kh5 d1B+ Rg4 Nf1 Be3 Be1 Bd4 Bd2 Bg1 Bdb3 Rd4 Bbe6 Rd6 Rf7 Rd4 Bg7 Rg4 Bh8 Kh6 Rg7 Re4 Bg4 Re1 Bdf5 Rd1 Kd7 e8B+ Kd8 Bc6 Bd7 Bd5 Ke8 Bb3 Qd8 Re1+ Qe7 Bc4 Qe5 Re3 Rd1 Re4 a1B Ne7 Bd4 Nc8 Bf2 Rd4 Ra1 Rd6 Kd8 Rc6 Ra3 Re6 Bc6 Re8+ Kd7 Ne7 Nf8 Rb8 Nh7 Nc8 Ke8 Bb3 Bcd7 Ba2 Bhf4 Bc4 Bh2
bbRB2q1/2nrq3/r1r2N2/1K1n1P1r/N1r3P1/p2rQ2R/1R1rBq2/5Bk1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 c4 Ke5 b4 a5 c5 d5 f3 h5 b5 a3 b6 a2 c6 d3+ Ke3 d2 c7 d4+ Ke2 Kf4 b7 Kg3 f4 e5 f5 h3 Nf3 d3+ Ke3 h2 Nh4 a4 Qb3 d1R Qc2 a3 Qb2 d2 Nf3 h4 Qb5 h3 Qb2 Na6 b8R Nf6 Ne1 Nd5+ Ke2 e3 Kd3 Kf2 Kc4 e4 Qe5 e2 Qe7 e3 Qf6 Rh7 Qh8 Rd7 Qg8 Bd6 Qg7 Bb7 c8B Nac7 Qf8 Ra6 Qg7 Qg8 Ng2 e1Q Ra8 e2 Rg1 h1R Qc3 h2 Ne3 Be5 Rb8 Ba8 Rg3 Bf4 Rf3+ Kg1 Rb2 Qf2 Rh3 e1Q Qd4 Be5 Nc3 Bg3 Rab1 a1R Na4 Ra2 Rb8 Rc2+ Qc3 Be5 R1b2 Bg3 Bb7 Be5 Rc8 Bf4 Ng2 Qe7 Bc6 Bd6 Nf4 Be5 Nh5 Bf4 Kd3 Bd6 Qd4 Rc4 Bb5 Bg3 Nf6 Bf4 Rb1 Bg3 Bb2 Rdc1 Bc3 d1R+ Bd2 Rcc6 Rb2 R1c4 Qe3 Ne8 Ra2 Bb8 Rb2 Nec7 Be2 Ra1 Bb4 Ra2 Bd2 Kg2 Ba5 Rd1+ Rd2 h1R Bb6 Ne6 Bd8 Nec7 Bf1+ Kg1 Be2 Rdc1 Rb2 Rcd6 Bf1 Rcc6 Kd4 R1c3 Bbe2 R3c4+ Kd3 Rh2 Rf3 Rh7 Rh3 Rh5 Ne8 Rc1 Rb1 Rac2 Rb3 R6c3+ Kd4 Rdc6 Rb2 Rb3 Nf6 Rcd6 Nc3 Rd2+ Kc4 Re6 Rc2 Red6 Na4 Rbd3 Kc5 Ne8 Kb5 Rdc6 Ra2 R1c4 Rb2 Nec7+
3q1nnn/BB3bq1/4N1rQ/2nP1pPK/R3RB2/4b2k/rnb3nN/3n1R2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 a5 e4 h5+ Kf3 c5 d4 a3 g4 c3 b4 c2 g5 c4 e5 Kf5 b5 c3 d5 h3 b6 a2 e6 h2 e7 h4 e8R a4 b7 a3 Ne2 h3 Bb2 c1N Re3 c2 Rg1 h1N Re6 h2 Rg6 Rh6 Rc6 Be6 Nec3 Nf2 Rc8 h1B+ Bg2 Bc5 Nb5 Be3 Bc3 Ncd3 Re1 c1N Qc2 Rg6 Re2 Nd1 Bh8 Nd7 b8B Nf8 Rd2 Ne2 Qc5 N3b2 Rc7 f6 Qc4 Bf7 Rd4 Ra7 Nd2 Ra4 Rc1 a1N Qc3 a2 Ba7 Nb3 Qc6 a1Q Nf1 Ra2 Re4 Nc5 Qa6 Ng3 Ra4 Nge4 Nh2 Nd6 Re7 Bf2 Ke2 Be3 Bf1 Be4 Nc7 Bc2 Ne6 f3+ Ke1 f2+ Ke2 Qe8 Kf3 Qd8 Bb5 f1N Bc6 Bf4 Re8 Nfe3 Bb7 Ng2 Re7 Be3 Bg7 Nf2 Rf1 Nfd1 Bh8 Be8 Bg7 Nf7 Qc6 Nh8 Kg3+ Ke5 Kg4 Bf7 Kh5 Ne4 Bh6 f5 Qa6 Nc5 Qb6 Nc4 Bg7+ Ke4 Bc3 Qb2 Bd2 Qg7 Bb4 Ncb2 Be1+ Kd3 Bg3 Ke2 Bf4 Ne1 Rh1 Kf2 Rf1+ Kg2 Re8 Kh3 Qd6 Nh7 Qf8 Ng2 Re7 Qe5 Qh6 Qf6 Ng7 Qd4 Re4 Nf8 Ne6 Qg7
2q2R2/1BP2bq1/qr3rP1/2K1b1Q1/1qnB1q1p/k1bB4/qR2N2R/q1n1N3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc6 g4 Kc5 f5 b5 f6 e5 a5 e3 Kd3 e4+ Ke2 h3 f7 d3+ Ke1 h4 g5 e2 Kf2 e1B+ Ke3 d2 g6 d4+ Ke2 d3+ Ke3 h2 a6 b3 a7 Kb4 c5 b2 c6 Ne7 c7 Nf5+ Kf4 e3 Ke4 e2 Ra5 Na6 Nf3 Bd6 Kd5 Be6+ Kc6 Be5 f8R Bf7 Ng5 Nd6 Ra2 Nc4 Rg8 Rb8 a8B Nc5 Nh7 Nb3 Rg7 Rf8 Ra7 Qc8 Na3 b1Q Nf6 Qb2 Rg1 h1Q+ Bg2 Qh2 Bd5 Qf4 Be4 Qa1 Bb2 Nc1 Qc2 d1Q Bd4 Bc3 Bb7 e1Q Rg2 d2 Rh2 Qde2 Nh5 d1Q Rg8 Q1f1 Qd3 Qea2 Qd2 Qde2 Qe3 Qeb2 Bd3 Kb3 Nc2 b4 Ng3 Qe2 Ba6 Rb6+ Kc5 Qef1 Ne1 Ka3 Rb7 b3 Bb1 Rd8 Qd2 Rdd6 Rf8 Rf6 Rb8 Qg2 Bc2 Qa8 Bb7 Qa6 Bce4 Qc2 Qg2 b2 Bd3 b1Q Ne2 Qcd2 Qg1 Qh6 Qe3 Qg7 Qg5 Qf4 Ba8 Rbe6 Rb2 Rd6 Bb7 Rb6 Rd2 Qbb3 Rb2 Qb4+
3Rb3/2P1n2b/N2rBB1R/2p1b1N1/n3n1QK/Rn2r3/2nk1PN1/2b1r1bq w - - 0 1 illegal: No proof kernel
bN3q2/8/r2k2Bb/1n2qR2/Pp2n1R1/bqr1NP2/1RQbrB1B/1b3bK1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 d5 c4 Kd7 h4 e5 f3 g5 Kf2 b5 h5 g3+ Kg2 d3 c5 b3 h6 d2 c6+ Kd6 h7 d4 c7 g4 Nc3 d3 Nce2 b2 Rb1 e3 Nh3 e4 Rg1 Nc6 Ra1 b1B Ra3 Bh6 Nd4 e2 Rb3 e1Q Qc2 d1Q Rc3 d2 Nf4 e3 Bc4 e2 Ra3 Qf8 Rb3 Na7 Bd5 Nf6 Nfe6 Ne4 Qc4 Bb7 Rb2 Qb3 c8R d1B Kh1 g2+ Kh2 g3+ Kh3 b4 Be3 Nb5 Rc5 Ra6 Nc7 Ba8 Nc2 Qec3 Bf2 e1B Ne3 Bd2 Qd3 Qe5 Qc2 Be2 Bf7 Bf1 Bg6 Rg8 h8B Rg7 Ne6 Rc7 Nd8 Rc8 Nc6 Bc1 Ra2 Ba3 Nb8 Re8 Rb2 Rc8 Rh1 Rcc6 Rh2 g1R+ Rg2 Rc8 Bf6 Rc7 Bg5 Rc8 Bf4 Rh1+ Kg4 Rh2 Rg1 g2 B4g3 Rh5 Bh2 Rf5 Kh3 Rf6 Rc7 Re6 Rf7 Rc3 Rf5 Re7 Bhg3 Re8 Kh2 Re7 Rh1 Re8 Kg1 Re7 Rh4 Re8 Kh2 g1B+ Kh1 Bh2 Rg4 Re6 Bf4 Bg3 Kg1 Bh4 Bh2 B4g5 Ng2 Bd2 Bf4 Re3 Bh2 Re2 Ne3 Re7 Bh4 Rc7 Bf2 Rc3
1q4B1/b1n5/N1k2b1b/4B2P/1Q2Pnpr/q3N1BR/2rnbb1N/q1b1R2K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 Kg2 g5 b4 a5 e4 c5 h4 f5 d4 f3+ Kh2 f2 b5 c3 b6 f4 b7 f3 d5 a3 d6 c4 Bh3 f1Q Qd3 a4 Qd2 c2 Qb4 f2 Qc5 c3 Qa5 a2 Ne2 a3 Ng3 Bh6 Qa6 Ne7 Rg1 Qd3 Bf1 Nd5 Qa7 Nf4 Kh1 Na6 b8B+ Kc6 d7 Nc7 Nh5 g3 Ng7 g4 Bd2 c1B Qa5 c2 Nf5 Ba6 Be1 Be3 Qb4 c1B Nd2 Ba7 Nf3 Qb3 Ne3 Be2 Rb1 a1B Nh2 a2 Bc3 Qf8 Be5 Qa3 Rb3 B1d4 Rd3 a1Q d8N+ Kd7 Bg2 f1N Nc6 Nd2 Re1 Rh7 Bf1 Rh8 Bd6 Bf6 Be5+ Qd6 Qb1 Rc8 Nb4 Rh8 Na6 Kc6 Qb4 g2+ Kg1 Ne8 Bc7 Rc8 Bb8 Nc7 Rb3 Bd1 Bc4 Be2 Bg8 Qd8 Nf3 Qf8 Kh2 g1B+ Kh1 Rh7 Nh2 Bf2 Rd3 Rd7 Rb3 Rd3 h5 Qd6 Ng2 Rh3 Rg3 Qf8 Ne3 Rh4 Rh3 Rd8 Nhf1 Rd4 Nh2 Rc4 Ng2 Rc2 Ne3 Ncd5 Bbd6 Qb8 Bc7 Ng2 Bg3 Ngf4 Be5 Nc7
b1Nqn1b1/3nR3/4B1qN/3K1bP1/5P1k/2Bb1p2/1b3qbr/QB1Rrr1N w - - 0 1 illegal: No possible last move
Br2n3/3q2N1/4N1b1/p3K2P/qR2b2k/1RQnb1bq/1B1P1rb1/R1bB3r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 e4 Kf6 h4 g5 b4 a5 h5 c5 b5 a3 b6 c3 b7 c2 Bd3 g3+ Kf3 g4+ Ke2 Kg5 e5 f5 e6 a2 e7 c4 e8B g2 Bb5 g3 Kf3 c3 Qf1 Ne7 Bb2 c1R Rh2 c2 Ba4 Na6 b8R Nd5 Ba3 Nac7 Qd1 Bd6 Ba6 Ne8 Bf1 Qd7 Rb7 Rf8 Ne2 g1B Rh1 g2 Bb4 Be3 Bc3 g1Q Bh3 Rb8 Bh8 Qh2 Bb3 Kh4 Rc7 Bb7 Bg2 Qh3+ Ng3 Rf7 Ke2 f3+ Kd3 f2 Nc3 f1B+ Nce2 f4 Ke4 f3 Rc3 f2 Nf4 Bc7 Bf3 Bg2 Ne6 f1B Rg1 Rb1 Qc1 Nf4+ Bd5 Be2 Rb3 Bc6 Qa3 c1B Bb2 Bd1 Rf1 Bc2+ Rd3 Ne2 Rf2 Bd6 Qb4 Ba8 Bb7 Rf8 Kd5+ Rf4 Rb3 Bg6 Qc3 Rf6 Ne4 Bh2+ Nd6 Bg3 Bc6 Rf4 Ke5 Bb7 Bg4 Rf8+ Rf4 Rf7 Ba3 Bb2 Bcf3 Rg1 Rb1 Bc1 Bb2 a1Q Be4 Qa3 Ra1 Qaa4 Bc6 Rh1 Bcf3 Be1 Rfb4 Ba8 Bc6 Rf3 Bb7 Nf4 Bc6 Rff1 Bd1 Bg3 Bb7 Rf2 Bbf3 Nc7 Ne8 Bd5 N8g7 Ne8 Bfe2 Ba8 Bc4 Baf3 Bd5 Bfe4 Ba8 Nd3#
2knqr1b/4P1pn/2n5/2n2R2/n1P1Bn2/B3rb2/Q1NN2r1/KN1b1qRR w - - 0 1 illegal: Other
1n2B1Rr/1N1p2r1/r6B/Qq3qB1/1R1P1rr1/1N2R1r1/n2P2q1/1kbn1bK1 w - - 0 1 illegal: Other
R1b2q1R/2npqN1P/q2P1N2/2r1qR2/B3n1N1/3qbKr1/1r1B1b1Q/1k3q2 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 Kf2 Ke7 a4 Kd6 d4 Kd5 h4 Kc4 a5 b5 a6 f5 h5 g5 d5 c5 d6 g3+ Kg2 b4 h6 g4 a7 b3 h7 c2 Rh4 f3+ Kh1 f4 Qe1 g2+ Kh2 b2 e4+ Kb3 e5 c4 e6 f2 e7 g3+ Kh3 f3 Kg4 c3 e8N Na6 Qe3 Rb8 a8R Qe7 Qe1 Nf6+ Kf4 Rg8 Bb5 f1Q Bc6 f2 Nf3 g1B Bd2 c1R Na3 b1Q Be3 Kb2 Qd2+ c2 Ne1 g2 Qd5 Nc7 Qf3 Ne4 Nf6 Qa6 Ba4 f1Q Rh5 Bf2 Bd2 g1Q Ng2 Qh2+ Qg3 Bh6+ Kf3 Bhe3 Rf5 Rg5 Qh3 Qhe5 Qh2 Rb7 Rb8 Qfd3 Ra8 Qa2 Rb8 Qg8 Ra8 Rb8 Rb1+ Ka2 Nc4 Qgf8 Rb7 Rg1 Rb4 c1Q Rb6 Qc5 Ne5 Qcf1 Nf7 Qce5 Rc6 Rb2 Rc3 Ba7+ Ne3 Kb1 Ra3 Qdd5 Neg4 Bae3 Rb3 Qdd3 Rbb8 Qec3 Rf4 Rc5 Rf5 Qcd4 Qf4 Qde5 Qh2 Bb7 Rd8 Bc8 Re8 Qh6 Rg8 Qhf8 Rh8 Rg3+
3Bq1R1/n1p1b3/QBqqb3/N3RP2/nr2qr2/P2q3K/2kqnNB1/2r3N1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kd7 f4 Ke6 Kf2 Kf5 d5 h5 d6 b5 g3 e5 Kg2 e3 g4+ Ke4 g5 e2 g6 e1Q f5 h3+ Kh2 h4 g7 c3 d7 b3 a3 b2 Qh5 b4 Qh6 c2 Qb6 b3 Bg2+ Kd3 Ra2 e4 Nf3 e3 Qb4 e2 Bd2 c1N Qb5+ Kc2 Ba5 Nc6 Qb8 Be7 Nc3 Nf6 g8N Nd5 Rf1 Na7 Bb6 Qd2 Rh1 e1Q Na4 Ne2 Nh6 Ndc3 Qb7 Rb8 Nc5 Na4 Ra1 b1Q Ne4 b2 Bd4 Rg8 Nc5 Rg4 Ng8 Rf4 Qa6 Rb4 Ng1 Qbd1 Nf6 b1R Ng4 Rc1 Nb3 Qf1 Qa5 Qe8 d8B Be6 Bb6 Qd6 Nf2 Q1d2 Qa6 Qfd1 Nf3 Q2d3 Re1 Q1d2 Kh1 h2 Na5 Rcb1 Ng1 Rd1 Bh3 Rc1 Kg2 h1Q+ Kf1 Bg5 Bg2 h3 Rb1 h2 Rb3 Q3d4 Rg3 Be7 Rg8 Q4c3 Bc6 Qhf3 Bb7 Qfe3 Kg2 Qed3 Bf3 Qcc6 Kh3 Nec3 Re5 h1Q+ Kg3 Qh4+ Kg2 Qg4+ Kh2 Ne2 Bh1 Ng3 Bg2 Qgf3 Kh3 Qfe4 Bh1 Ne2+ Bf3 Qdc4 Bg2 Qcd3+
Kb1rRr2/2k1rnq1/r2Nq1nQ/3PBPNr/7p/1Nnn4/B1R3b1/R1n5 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 b5 Kd4 e5+ Kd5 h5 f4 c5 g4 c3 d4 e3 a4 c4 g5 e2 a5 e1R a6 b3 f5 h3 a7 b2 g6 e4 g7 e3 Ra5 h2 Na3 b1R Nh3 e2 Bh6 b4 Qc2 b3 Qd3 b2 Qe4 c2 Bf4 c1N Nb5 c3 Bh6 c2 Nf2 Qg5 Qf4 Bb7+ Kc4 Nc6 Kd5 Bd6 Nd3 Bb8 Ra2 Ra1 Nd6 b1N Nc5+ Kc7 Nb3 Nd3 Bg2 c1N Rc2 h4 Qd2 Qg3 Bf4 Nh6 g8N Ra6 Nf6 Nf7 Be5 Rh5 Qh6 Qg7 Nh7 Rd1 Ng5 e1Q Rg1 h1R Bf1 Rh3 Be2 Re3 Rh1 Nb2 Bc4 Ne7+ Kc5 Bg2 d5 Ng6 Rg1 Nbd3+ Kb5 Rc6 Rh1 Nc3+ Ka5 Rc5+ Ka6 Re2 Nd4 Rdd2 Ba2 Re3 Nb3 Re4 Bg3 Re7 Rf1 Qe6 Be5 Re2 Rg1 Re8 Re1 Rf8 Rf1 Kd8 Kb7 Rc6 Re1 Ra6 Rd1 Bc7 Rg1 Rc8 a8R Kd7 Rh1 Rcd8 Rc8 Bb8 Rg1 Rde8 Rd1 Re7 Re8 Re4 Re1 Rc4 Rd1 Rc8 Rh1 Rd8 Rf1 Rc6 Ka8 Kc7 Rg1 N1e2 Rb1 Nec1 Ra1 Ra6#
Nr5q/1rKRb3/pP1B4/qq2R1N1/1b3k1n/b2Q4/Pq2b2n/1b1BBq1N w - - 0 1 illegal: No possible last move, all moves rejected
K1nq4/5p1B/N3Rr1N/rRq1n1b1/2kN1P2/R3rbQB/b1r1P2b/5rb1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Be3 d3 Bd4 exd4 Bh3 hxg6 Kf1 g5 Kg2 g4 Kg3 d2 Bf1 Qf6 Kg2 Qd8 h4 Ke7 c4 Kd6 f4 Kc5 a4 g5 a5 b5 h5 d5 h6 d3 a6 d4 a7 b3 h7 b4 Kf2 b2 Kg2 g3 Kf3 g4+ Ke4 g2 Qa4 d1Q Rh4 g3 Qa3 d2 Qb3 d3 Ra3 Bb7+ Ke5 Nc6+ Ke4 Nge7 Rh6 Qc2 Rg6 d1R Re6 Rc1 Nf3 g1B Nh4 g2 Nf5 Nc8 Nh6 Bh2 Nd2 b1B Nf3 g1B Nd4 Ba2 Bh3 d2+ Qd3 Rg8 h8R d1R Rh7 Qc3 Qg3 b3 Rg7 b2 Rg5+ Kb4 c5 Ne5+ c6 b1R Bf5 Bc5 Bh7 Rb3 Rf5 Bd6 Kd5 Rf1 Rh5 Rc2 Rf5 Rb8 a8N Rg6 Nc7 Ra8 Rg5 Qe3 Na6+ Kc3 Rf5 Rf6 Rg5 Bc7+ Kc5 Ba5 c7 Bf3 Rh5 Bb4+ Kb5 Be7+ Ka5 Nb6 c8B Kc4 Rg5 Ng6 Rb5 Ne5 Rd6 Qf2 Bh3 Re3 Re6 Rb8 Nc5 Nc8+ Ka6 Rb7 Bg6 Rc7 Bh7 Rc6+ Kb7 Ra6+ Kb8 Ra5 Na6 Rf5 Qg4 Bg5 Qh4 Rf6 Qg3 Re4 Ka8 Qe3 Ndf5 Qc5 Nd4 Re3+
rr2RR1n/1q1Pn1r1/3nRN1q/N3Q1nK/1kr1n3/2r1bpN1/1P4BB/3b4 w - - 0 1 illegal: No possible last move, all moves rejected
1R4n1/N1P5/n4p2/Q3bq2/1B1k1rq1/1r1Nb2b/1KPBb1Bq/1RRq1bq1 w - - 0 1 illegal: Other
8/nbr5/knr1R2N/2B1Qqn1/q1p2n1r/1R6/1PP1KNqr/2BrB1bN w - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 g5 bxa4 g6 f5 Nf3 f4 Ng5 f3 Bg2 fxg2 Nf3 hxg6 Ng1 g5 Ra2 g4 Ra3 Rh3 Ra1 Rh8 f4 Kd7 d4 Kc6 h4 Kb5 h5 a5 d5 g5 h6 c5 d6 e5 h7 g3 f5 g4 d7 c4 f6 a3 f7 a2 Bd2 e3 Bc1 a4 Qd2 e4 Kd1 a3 Qd6 e2+ Kd2 e1N Nh3 g1Q Qd5+ Ka6 Qe5 g2 Ke2 e3 Qe7 g3 Kd1 e2+ Kd2 Bb7 Qe3 Nc6 Nf2 Qc8 d8N Nge7 Qh6 Nd5 Qh3 Na7 Nd1 Bc5 f8B Nb6 Qg4 Qf5 Rh3 Rc8 Qf4 Rc7 Nf7 Nf3+ Kc3 e1N Rh4 Ng5 Kd2 Nd3 Qe5 Nf4 Nf2 Qh2 Rh3 g1R Rh6 g2 Re6 Rh1 Nh6 g1R Nc3 Qg2 Ne2 Rh4 Ng3 Rf1 Nh1 Rd1+ Kc3 Be3 Bc5 Rhc8 h8B Rc6 Nd3 Bg1 Ndf2 R8c7 Bg7 Rd2 Bgf8 Re2 Kd4 Rd2+ Ke3 Rd1 Bb4 Rh2 Be1 Rh4 Rb1 a1Q Bc5 Qa2 Ra1 Qb3+ Qc3 Qa4 Qh8 a2 Qe5 Ng6 Ke2 Rh2 Bf4 Rd4 Rd1 a1R Bc1 Rdh4 Rd3 Rb1 Rb3 Ra1 Bf4 Rd1 Bc1 Nf4+
1n1B3Q/2r4n/bk4q1/1r5P/RN1Kq1B1/2r3b1/1nP1Nbpr/N3BrRb w - - 0 1 illegal: No possible last move
1q2NN1k/qRqB4/2n5/2PB2rb/1n1b2qr/3p2n1/KRP2q1R/3nBQb1 w - - 0 1 illegal: Other
RbnNQ3/3qbRBr/3rN3/RP2K3/1b2P3/1q3q1B/b1pB2b1/2nk1nq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 g4 Kb4 d4 a5 d5 c5 g5 h5 e3 f5+ Ke5 a3 e4 a4 b3 a2 d6 h3 d7 f3 g6 f2 g7 h2 Be3 c3 Nf3 c2 Qd3 c1Q Bd2+ Qc3+ Ke6 a3 Nh4 f4 Bg2 f1B Kf5 f3 Bc1 f2 Qg3 c4 Qg5 Rh7 Qd2 Ne7+ Kf4 Ra6 g8R Nbc6 Bf3 Nd4 Qc2 Ne2+ Kg5 Rd6 Rg1 h1Q Bf4 Nc1 Be2 Bg2 Bd1 f1N Nf3 h4 Nd4 h3 Bg4 h2 Nd2 Qe8 d8B Be6 Kf6 Nc8 Bh6 Be7+ Ke5 Qd7 Bh3 Qd3 Bf8 c3 N2f3 Bc4 Qf2 c2 Ne6 Kc3 b4 Kb2 b5 Qb3 Qa7 Kc3 Nfg5 Kd2 Bb6 Kd1 Nd8 Bd5 Ba5 Bf7 Rb1 a1B+ Rb2 a2 Bg7 Bc4 Bd2 Bd5 Qd4 Be6 Rb1 Bc3 Ra1 Bb4 Rf8 Bd5 Nge6 Bc4 Rf7 Bd5 Rb1 a1B Qc3 Bb2 Ra1 B2a3 Qc6 Bb2+ Kf4 Bd4 Ra4 Ba7 Ra5 Bb8 Kf5 Qf3+ Ke5 Ba2 Qa8 Qb3 Qc6 Bf3 Rg6 Qg1 Rgf6 h1Q Rf8 Qda7 Qe8 Qd7 R8f7 Bg2 Rf3 Qa4 Ra3 Qb3 R3a4 Qf2 Ra8 Qff3 R4a5 Qg1
1R3r2/6B1/N2q1P2/3bQp1R/q1bBrrBn/5rrq/R3nP1q/1Nk1K1b1 w - - 0 1 illegal: Other
2b2r1r/1Rb3bN/2B1PpQ1/BR6/2n5/1q2bq1N/2R1P1n1/qk1KbrqN w - - 0 1 illegal: Other
1N2N1r1/r4q1q/3P4/RRQrK3/n6B/r4bnk/rqNp1P1q/b2BBb2 w - - 0 1 illegal: No proof kernel
k2b2R1/n5Q1/BqrPK1n1/2bqn2P/2b1n2N/B1Rq4/1Bn2rp1/2R1b1N1 w - - 0 1 illegal: No possible last move, all moves rejected
NR2K2n/4b3/qqP2bpb/1N3BNR/3rr1bB/R1nn3Q/P1rk2b1/2r5 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Ke6 f4 Kf5 h4 d5 h5 b5 h6 e5 c5 g3 h7 e3 Kd3 e2 c6 e1B Rh3 g2 Ne2 g1B Rh6 g6 Bd2 e4+ Kc2 b3+ Kb2 d3 Kc3 d4+ Kb2 e3 Qc2 Ke4 f5 b4 f6 Ra4 f7 Na6 Rh2 Bh6 f8N Nc5 Qc3 Bh3 Nc1 e2 Rh1 Qa8 Bg5 d2 Be3 d1B Rh2 d3 Rh1 d2 Bd4 Bh4 Nd3 e1R Bf6 Ke3 Ne6 Qa6 Nc7 Bg2 Na3 Bg4 Na8 d1R Rb1 Rc1 Nb5 B4g5 Be7 Bf6 Rh5 Red1 Ne5+ Nd3+ Ka1 Bh2 Nf7 Bd6 Ng5 Rd2 Be2 Rdc2 Bf3 Bc5 Be4 Bd6 Bd8 Bde7 Bf5 Ke2 Qe5+ Kd2 Qd4 Rc3 Qd7 R1c2 Rf1 b2+ Kb1 Rc4 Rf3 Rd4 Qc8 Bhf8 Re3 Nh6 Qd7 B8g7 Rf3 Rf8 h8R Nf7 Rg3 Bh6 Rf3 Nf2 Ra3 Nd3 Rg8 Nh8 Qe6 Nc5 Qb3 Re8 Qh3 Nd3 Rf8 Bc5 Rg8 Ree4 Be7 Ra5 Rb8 Ra4 Bd6 Rdc4 Bg3 Bce7 Bf2 Rcd4 Bh4 Ra5 Na7 Rad5 Nb5 Rdc5 Nd6 R2c4 Rc3 Ke2 Kc2 b1N Kb3 Kd1 Bg3 Kd2 Bh4 Nf2 Re3 Rc1 Rf3 R5c2 Rc3 Qc8 Ka4 b3+ Kb5 b2 Kb6 Nd3 Ra3 Qa6+ Kc7 Nc3 Kd7 b1Q Ke8 Qbb7 Nb5 Qbb6
1NB1N1n1/2n3bK/qqp1Q2R/bkr1RP2/1B4q1/2r2B2/b2P2q1/1b1nNb2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 h5 Kg5 e5+ Kg6 b5 a4 e3 f4 h3 g4 b3 f5 h2 a5 c3 g5 e4 a6 h4 a7 e2 Ra4 e1B Ba3 c2 Bc1 b2 Ra5 h3 Qf3 b4 Rd5 e3 Qg3 e2 Ra5 b3 Qe3 Na6 Na3 b1B Qd3 b2 Qb3 Bf2 Nc4 e1Q Qb4 Qe4 Bd3 Qg4 Rb5 Ba2 Ra5 b1B Qe7 Bb6 Bb2 c1Q Ba3 Qf1 Bb4 Bg7 Re5 Ba5 Nf3 Bd7 Qe8 Rc8 Nd6 Kb6 a8B Bb5 Qe6 Bbc4 Rg1 h1N Ne1 h2 Bf3 Nf2 Rh1 Rh3 Ne8+ Qd6 Bde4 Nd1 Bb7 Rg3 Kh7 Qe2 Re4 Kb5 g6 Qb6 Re3 Qg2 Re4 Bf1 Re2 Rd8 Bc8 c6 Re3 Rd5 Re5 Bf6 g7 Rc5 Qd5 Nc7 Qe6 Nh6 g8N Bg7 Ngf6 Ng8 Nd7 Qe2 Bg2 Rc3 Bf3 Qeg2 Nb8 Qa6 Rg1 Qf2 Rg2 h1Q+ Rh2 Qhg2 Rh4 Rd5 Rh3 Qfb6 Rh6 Rdc5
2k2r2/3r1BBP/rBqn1N2/p1qrN1QK/6nb/1R3Nn1/rbb1n2P/2R5 w - - 0 1 illegal: Other
1B5n/b1rbKP1R/5n1q/nB2N2b/2pQ3r/Nbqb2R1/2nBkNP1/2r5 w - - 0 1 illegal: No proof kernel
nb1q1Q1q/4P1b1/1qrNB3/4r3/bB1Rq2b/3P2kB/r3RpN1/n1R3Kb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 e4 Kd6 a4 Ke5 g4 c5 a5 h5 a6 b5 a7 f5 g5 h3 g6 h2 g7 h4 Kg2 f3+ Kf2 Kf4 e5 c3 e6 c4 e7 b3 Qc2 b4 Bb2 h3 Bd3 Nh6 g8B Nd7 Na3 Nb6 Qc1 c2 Be2 c3 Nb1 Ng4+ Kf1 f2 Qe1 c1B Ra3 c2 Bg7 b2 Nc3 b1Q Na4 b3 Bb2 Rh5 Nf3 Kg3 Nd4 f4 Nc3 Bd7 Ba6 Ba4 Bb5 Re5 Nd1 Ne3+ Ke2 Bg7 Ba1 b2 Rf1 h1Q Bd7 h2 Nb5 Qe4 d3 h1B Rc3 Rc8 a8R Rc6 Rc8 Na8 Rc4 Bd2 Rb4 c1B Nd6 Nc2+ Ne3 Qa2 Rc7 b1Q Bc3 Qaa1 Rd4 Qb6 Bb4 Qb2 Ba2 Na1 Bh3 Qc3 Qd1 Be1 Qb3 Ba3 Qg8 Bc1 Bb3 Bb2 Qf8 f3+ Kd1 Bc1 Ng2 Bf4 Rg1 f1R Rc8 Bb5 Bbe6 Rf2 Rf1 Ra2 Rf2 Qb2 Re2 Bf2 Rc7 Ba4+ Bb3 Bg1 Ke1 Bh2 Kf1 Bg5 Bbe6 Bh4 Re1 Qd2 Rc8 Qh6 Re2 Qh8 Rc7 Bg1 Rc8 Be3 Rc7 Bf4 Kg1 Rb5 Ra7 Rc3 Nc8 Bb8 Nd6 Re5 Ra5 Rc7 Rc5 Rc6 Rc1 f2+
nNR1n3/1b2Pbn1/NQ1r3b/2P1pB2/q5rB/nbb2R2/2B2r2/1N1K2kq w - - 0 1 illegal: No proof kernel
1b2bB1n/4p3/KNBNP3/nr3NP1/3n4/BRq2r2/bRQ2bq1/b2n1r1k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 Qb3 dxc4 Qf3 g5 Qg3 gxf4 g5 Qd5 Qg2 Qd8 Qg4 hxg4 a4 Kd7 h4 Kd6 d4 Kd5 Kd2 Ke4 a5 f5 d5 c5 a6 b5 e3 b3 Kc3 b2 h5 f3 h6 f2 a7 f4 d6 g3 h7 b4+ Kc2 f3 d7 g2 Be2 f1Q Rh6 f2 Rh5 b3+ Kc3 Nc6 Ra4 Nh6 Rh1 Qa5+ Rb4 Nd4 d8N Rb8 Ne6 Nf7 Nd8 Rb5 Nh3 g1B Nb7 Bg7 a8Q Rf8 h8B Qg2 Bf1 Kf3 e4 Bd7 e5 Be8 Na3 b1B e6 b2 Qc8 Ba2 Bd3 b1N+ Kb2 f1R+ Nc2 Bf2 Ne3 Nc3 Rh2 Be5 Nf4 Bb8 Be5 Nh8 Nfd5 Rf4 Nb6 Nd1+ Ka1 c3 Be4+ Kg3 Bc6 c4 Rb3 c2 Nd6 c3 Bg7 Rf3 Ba3 c1B Bf8 c2 Qc7 Bd2 Qc8 c1N Qc7 Bfe1 Nef5+ Kf2 Qc8 Kg1 Qc7 Bf4 Qc8 Bf2 Qc7 Ne3 Kb2 Be5 Qc8 Qb4 Qc7 Bf6 Qc8 Qc5 Qc7 Qe5 Kc3 Nd1+ Kc4 Qeg3 Rh4 Qe5 Re4 Kh1 Re2 Rc5+ Kb4 Rb5+ Ka4 Qc5 Reb2 Qc3 Qc8 Rb4+ Ka5 Rb5+ Ka6 Be5 Rb4 Ncb3 Qc7 Na5 R4b3 Qd2 Bd7 Qb4 Qc2 Qc3 Bc6 Qc5 Qe4 Nc2 Rb1 Ba1 R1b2 Nd4 Qc2 Qc3
B2K3b/1Pr2b2/2bnqb1P/1Rpr3n/8/2q2kNR/nqQ2Nq1/1b1NB2R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 e4 Ke6 b4 Ke5 h4 g5 h5 a5 d3 c5 b5 f5 h6 g3+ Kf3 c3 b6 g4+ Ke2 g2 Qe1 a3 Qd1 f3+ Ke3 f2 Qa4 c2 Bd2 c1N Qd1 a2 Qa4 g3 Rh2 f4+ Kf3 Bd7 Qb5 a4 Ba5 a3 Ne2 g1Q Nd4 g2 Ne2 Nf6 Nbc3 Nc6 Qc4 Qc8 Nb1 Ne7 Rh1 Bg7 Bd2 Nh5 Nbc3 Bf6 Rb1 a1B Ng3 a2 Nd1 Qh2 Qc2 g1Q Be1 Rh7 Bg2 f1B Rb5 Nf5 Kg4 Bc6 Bf3 Bh8 Kg5 Nd6 Bg2 Kd4 e5 f3 e6 f2 e7 Qe6 e8N Rd8 Nf6 Rc7 Ng4 Bc3 Bd5 a1Q Bf3 Bh3 Bd5 f1B Ngf2 Bfg2 Be4 Be8 Ba8 Na2 b7 Kd5 d4 Bf5 Rb3 Bf3 Rb5 Qhg2 Rh3 Bf7 Rh1 Qb2 Rh3 Kc4 d5 Kd4 Rh1 Q1f1 Rh3 Qc4 Rh1 Nc8 d6 Bc6 d7 Nd6 Rh3 Ke5 Rh1 Bd4 Rh3 Qcc3 Rh1 Rb8 d8R Bd3 Re8 Rd8 Rf8 Bg8 Rf4 Bf7 Rfh4 Bdg6 R4h3 Bf5 Qd2 Bb1 Qc1 Nf5 Qd2 Rd5 Qc2 Nd6 Rb6 Qc8 Rb3 Be6 Kg6 Kf4 Rb5 Bf7+ Kh7 Bfe8+ Kg8 Kf3 Kf8 Qg4 R3h2 Bf7 Rh3 Rc8+ Ke7 Rc7+ Kd8 Qe6 Qg6 Bde5 Qc2 Bef6+
bb1Nn1Bq/1pqb1qN1/q5rk/2n2PRr/3P1B2/5K2/1rbq2N1/R4Q1R w - - 0 1 illegal: Other
1q4r1/Pq1npR1q/4KR2/3NN1P1/2b1n1nn/b1Br1Bn1/1Q1B1q2/r1N3k1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 a4 Kf5 f4 d5 g3 h5 c5 b5 c6 h3 c7 b3 a5 b4 a6 h2 Ba3 e3+ Kd3 e2 Nd2 Kg4 f5 h4 f6 h3 f7 b2 Qc2 b1N Qc5 e1Q Ndf3 b3 Nd2 b2 Qc1 Bg7 f8B Nd7 Qc2 Ngf6 Ndf3 Qf2 Qa4 Rg8 Bc5 Nd2 Qc4 b1Q+ Qc2 Nde4 Ra3 Qb7 Qd1 Bh6 Ra5 Bc1 Ba7 Ba3 Ne2 Qe8 Rg1 h1N Bg7 h2 Qc1 Qf8 Rg2 Kh3 g4 Nhg3 g5 h1Q Ne5 Ng4 Qb2 Qe8 Rg1+ Kh2 Bg2 Qef8 Rb1 Q8f4 Nc1 Kg1 Bf3 Qh7 Bc5 Qf8 Bb4 Ra7 Bd2 Qd8 Kc2 d3+ Kd1 d4 Ra1 Ra8 a7 Qf8 Ra6 Qe8 Be3 d2 Kc2 d1N+ Bd2 Nde3+ Kd3 Ng2 Kc4 d3 Rf6 Nh4 Rf7 Bc5 Ra4 Ba3 Ra6 Rb8 Raf6 Qd8 Bf4 d2 Be3 d1R Bd2 Qa6+ Kd5 Rb3 Bh8 Qb7+ Ke6 Rd3 Bg7 Qb5 Bh8 Ba6 c8N Qb7 Nb6 Qdb8 Nd5 Bc4 Rh6 Qh2 Nb3 Q8a8 Nc6 Qa6 Bhc3 Qb8 Rhf6 Ra1 Nc1 Qab7 Ne5 Qf2
bb1R2bN/p3kqb1/qrbn2n1/2r1r3/1n1B2r1/1NK1PBQ1/RP2BN2/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 h4 g5 c4 d5 e3 d3 h5 g3 h6 d4 h7 f3 c5 f4 c6 g4 c7 g2 Qe1 a3 Qg3 a2 Qe1 g3 Nc3 f2 Nd5 f3 Rh6 Na6 Nf4 Qd6 Rb1 a1R Rg6 Bg7 Nfh3 Nb4 Rf6 Be6 c8B Ne7 Rf5 Ra6 Rf4 Ng6 Rh4 Bg8 Rg4 Ke7 Rh4 Rb6 Be2 f1N+ Kd1 d2 Ra1 f2 Be6 Rc8 Ra3 Rc5 Nf3 g1R Bd3 g2 Bc2 Ng3 Rf4 f1Q Bd7 Ne4 Rf8 Qf6 Bc6 Qf7 Ra5 Qa6 Ra2 Nd6 Bd3 Re5 Ke2 d1B+ Kd2 Ba4 Be2 d3 Kc3 d2 Qg3 d1B Bd2 Bdc2 Rb8 Be4 Nf2 Bd5 Ba8 Bac6 Nd4 Be4 Nb3 Rc1+ Kd4 g1B Rd8 Rcc5 Bc3 Bh2 Bb7 Bd7 Bc6 Bh1 Bcf3 Bc6 Bc4 Nc2+ Kd3 Nb4+ Kd2 Bg2 Bd4 Bh1 Kc3 Ba8 Bh5 Bhc6 Bf3 Red5 Na5 Qe6 Qg4 Nc8 Nb7 Bb8 Na5 Re5 Qg3 Nd6 Nb3 Bf7 Kd2 Rf8 h8N Bg8 Kc3 Rf4 Nd2 Rg4 Nb3 Rcb5 Bf1 Qf7 B1e2 Rbc5+
2nK4/p3R1q1/N5R1/qb1B1bQN/Pbn2B1R/r3nNn1/3bP3/r1b2kr1 w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 h5 c4 hxg4 c5 b6 Qd3 bxc5 Qd2 cxd4 Qd1 d3 Kd2 Ke7 Kc3 Kd6 Kb4 Ke5+ Kb5 Kd4 b4 f5 h4 g5 a3 d5 h5 c5 h6 g3 h7 f3 Qa4 g2 Rh6 f4 Rc6 c4 Qc2 f2 Qd1 g4 Bb2+ Ke3 Nc3 d4 Rb6 g3 Nf3 g1B Qc2 g2 Ka5 d2 b5 d1R Qg6 d3 Qh6 d2 Ne4 c3 Qh2 c2 Neg5 c1B Qh3 Nd7 Nd4+ f3 Ne4 Ne7 Rb1 Ne5 Ba1 Bf5 Qg3 Nc4+ Ka6 Nc8 Kb7 Bb4 Rg6 Qa5 b6 Re1 Kc7 d1B Rb2 Ba4 Nf6 Bb5 a4 Bh2 Nh5 g1Q Bh3 f1N Bg2 Bcd2 Qf4+ Kf2 Rc2 Ng3 Qg5 Rg8 h8R Rb8 Rh7 Rc1 Re7 Rb1 Bb2 Ra1 Bc1 Ke1 Rc3 f2 Bd5 f1N Nf3+ Kf2 Rd3 Nfe3 Rd4 Kf1 Rh4 Rg7 Kd8 Rb7 Be4 Rc7 b7 Rd7+ Ke8 Rd3+ Bc6 Rc3 b8N Rca3 Na6 Qg2 Nc7 Bg1 Kd8 Bf2 Bd5 Bfe1 Bb2 Bc1 Be5 Bed2 Bf4 Qh3 Rb6 Qg4 Na6 Rg6 Bb8 Qd4 Bf4 Qg7 Qh6 Rg4 Qg5 Ne4 Bc7 Rg1 Rg6 N8b6 Bd6 Ng3 Bf4 Nc8+
8/1rPrrn1N/rrk3nR/3r1Q2/Pn1B4/qN3RBK/p1N1B2n/1b2b1r1 w - - 0 1 illegal: No proof kernel
q1b5/1rB1RN1r/1p2nr2/1P2r1P1/b2n1k1b/1r5R/1N1N2B1/Qbr2bKB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 d4 c5 b5 cxd4 Qd3 e5 Qa3 exf4 Qb4 axb4 Kf2 Ke7 g4 Ke6 e4 Ke5 a4 d5 c4 h5 a5 f5 c5 b6 c6 d3 c7 d2 a6 d1R a7 d4 Nd2 b3 Rh2 b2 Rh3 b1B Rh2 d3 Ra3 h3 Nb3 f3 Bg2 h4 Rh1 d2 Rh2 f4 Ra4 Rh7 Na5 Be7 Rb4 Nh6 Rc4 Nf5 Rd4 Nd7 Ba3 Re1 Rh1 d1B Rd3 h2 Bc1 h3 Re3 Rb8 a8B Rb7 Bb2+ Nd4 Nc4+ Kf6 e5+ Kg5 e6 Nc5 Bc1 Ba4 Nb2 Re2+ Kf1 f2 Re4 Bf6 e7 Nce6 e8Q Re3 Qe7 Rb3 Qa3 Qh8 Qa1 Qf8 Ne2 Qa3 Nc3 Bd8 Rg1 h1R Re2 h2 Ne4+ Kh4 Nd2 Kg3 Re4 Bh4 g5 Kg4 Re3 Kf5 Rh3 Qf8 Bf3 Qe8 Kg2 f1R Bd5 Rff3 Re1 Rhf1 Re4 h1R Bc6 Re1 Re3 Ng7 Re7 Re5 Bd5 Nge6 Bc6 Bd7 c8N Kg4 Nd6 Bc8 Nf7 Rhf1 Nh8 Rfc3 Kh2 f3 Nf7 f2 Bg2 Kf4 Bh1 Rf3 Bg2 Rd1 Bh1 f1B Kg1 Rd7 Be4 Rf2 Beg2 Rb7 Nbc4 Rff3 Ba3 Rc1 Bd6 Bd7 Nb2 Qa8 Bb8 Bc8 Bc7 Kg4 Bb8 Rf6 Bc7 Kf4
r1n1BrK1/Bn2R3/4b1N1/3n1rbk/3qbn1q/8/PP1r2p1/Q1NRqR1N w - - 0 1 illegal: No proof kernel
q1B1q3/rQ6/2b2K2/r1R1Nb1r/1rn1n3/1NBRbP2/nq2PpRN/3n3k w - - 0 1 illegal: No proof kernel
qqnbr1N1/6Br/2Nk1rR1/1Q3q2/P1r2q2/2bb1P2/1K2BpNn/1R3R1n w - - 0 1 illegal: No proof kernel
2bnrB2/rR2B1q1/2nr1b2/1Kq1P2B/Nb5b/1pN1r1nq/5P1R/k2N3Q w - - 0 1 illegal: No proof kernel
1r1q4/B5k1/1nQ2RNp/K1P3NP/2Nq1b2/2qb2rr/1n2B1nr/Rnb2B2 w - - 0 1 legal: proof: e4 f5 g4 fxg4 d4 a5 b4 axb4 d5 c6 Qf3 cxd5 Qd3 dxe4 Qd1 e3 a4 Kf7 h4 e5 c4 g5 f4 b5 a5 d5 f5 d4 a6 b3 c5 g3 f6 d3 a7 g4 Ra5 b4 Nc3 e4 Rh2 e2 Kd2 e1B+ Ke3 b2 Nge2 b1R Bb2 b3 Qc1 d2 Na4 d1N+ Kf4 g2 Ke5 g1Q Nd4 e3 Bd3 e2 Qc3 g3 Nf5 g2 Qd4 Nd7+ Kd5 Bg3 Kc4 e1Q Kb5 Ne7 Be2 Bh6 Nc3 Bgf4 Ra1 Ng6 Qd6 Nb6 Ne4 Qd4 Ne3 g1R Nc4 Rg3 Rf2 Qec3 Qc6 Rb8 a8B Bf5 Ng5+ Kf8 f7 Bd3 Bb7 Kg7 f8N Rh3 Bc1 b2 Ba6 Rg8 h5 Nh4 Ng6 Ng2 Be3 Rc1 Rf3 b1N Bg1 Rc2 Bh2 Bc1 Rf6 Nb2 Bg3 Nh4 Bf1 Rch2 Bd6 Ng2 Be5 Ra8 Bb8 Bf4 Ba7 Rb8 Bc8 Bc1 Bg4 Bf4 Bge2 Bc1 Nf7 Bhf4 Ng5 h6 Ka6 Re8 Kb5 Ree3 Ka6 Reg3 Kb5 Qb3+ Ka5 Qbc3+
3n1K2/1R2R1Q1/1R1nr1p1/2b2b1r/q1b4q/1B2qBnk/NBPP2rn/1b1N4 w - - 0 1 illegal: No proof kernel
1b4nr/1q1rN3/NB2P2B/1qN1q1RB/1Qb1R2q/3r2pP/2n3rn/bK4k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 d4 Kd6 Kd2 Kd5 Kc2 Ke4 a5 f5 d5 g5 d6 b5 d7 c5 h3 c3 e3 f3 a6 f4 a7 g3 Ra3 c4 Ra6 g2 Na3 b3+ Kb1 c2+ Kb2 c3+ Ka1 f2 Qe1 b4 Qd2 g4 Nf3 g1R Nc4 g3 Qe1 b2+ Ka2 b1R Rf6 Bg7 Bd2 c1B Rd6 c2 Rb6 Qh4 d8B Ba1 Bg5 Na6 Qd1 Rg2 Bf6 Rb3 Qe2 Rd3 Nfe5 f3 Rb5 Be6 Ng6 Rad8 a8N R8d7 Bd8 Bcb2 Bc1 Be5 Ne7 Bb8 Rg5 Bf7 Bd2 c1Q Nc7 Qc3 Qe1 b3+ Kb1 b2 Ne5 Nb4 Na6 Bc4 Be2 f1Q Bb6 f2 Bh5 Nc2 Bc1 Qa5 Qb4 Qb5 Rg1 Qe2 Re1 f1N Bd2 Nh2 Bc1 Rd1 Nd3 Qe5 Nf4 Qf3 Ne6 Kd3 Re2 Qb7 e4 Rd2 Nec5+ Kd4 Rf2 Ke3 Rf4 Rd3 Rfg4 Kf2 Rf4+ Kg1 Rfg4 Qc3 e5 Rd7 e6 Qe5 Re4 R2d3 Bd2 Qf6 Rgg4 R3d6 Qb3 Rc7 Ka2 Qe5 Bh6 Rcd7 Rg7 Nd4 Rg5 b1Q+ Ka3 Rd5 Qa4 Qb5 Qb4 Be2 Ka2 Bc4+ Kb1 Nc2 Bf3 Rdd2 Bh5 R2d3
3K2B1/1R1b2bN/NrqkPb2/r2qr2N/3Q3B/q1p1r1P1/n1Bn1qR1/2n5 w - - 0 1 illegal: No possible last move, all moves rejected
r2b4/rNb1n2k/B1Q1P1qP/3Kn2p/3b1R1q/1B1q4/nBr2rN1/Nb5R w - - 0 1 illegal: No proof kernel
2n2b2/Rq1n1r2/1r2p3/2b1r1Q1/2nPq3/1BNb1N1k/P6B/bKqBnN1R w - - 0 1 illegal: No possible last move
3bB2B/1q1rk3/RqPrn3/N6b/1q1Pqn1r/K2rb1Q1/1p1NR1N1/4nR2 w - - 0 1 illegal: No possible last move
n1nb2Bb/8/PP3RK1/r4nQ1/Nb6/R1pn1r1N/3NbB1r/Rq2qq1k w - - 0 1 illegal: No proof kernel
bq4q1/kbr2P1b/q2Q1NR1/3Br3/3K1N2/2Pn1r2/q1np1n1B/R1b1R1B1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 d5 f4 Kd7 h4 Kc7 a4 Kb6 c3 g5 a5+ Ka7 h5 e5 f5 b5 a6 b3 f6 g3 h6 e3+ Kd3 b2 h7 e4+ Kc2 e2 f7 e1N+ Kb3 g4 Be3 g2 Nh3 g1Q Bc4 g3 Qc2 b4 Ra4 g2 Bd3 Nc6 Ng5 Bb7 Qd1 Nh6 Ra1 Nc2 Bf4 e3 Bf1 d3 Ra4 d4 Kc4 e2 Ne4 e1R Rh2 d2 Bc7 b3 Rh1 d3 Nd6 Ne5+ Kb5 Nhg4 Ra3 Rc8 Nc4 Bh6 Ra1 Nf2 Kc5 Re4 Be2 Qf1 Ne3 g1Q Nd5 Qgg8 Bf3 Rf4 Be4 Rf3 Nf4 Ba8 Bd5 Qe2 Qc1 d1B Nd2 b1Q Qa3 b2 Ne4 Qa2 Re1 b1B Nf6 Qf1 Ng2 Bc1 Nf4 d2 Qb4 Na3 Kd4 Ned3 Qe7 Ba4 Qd6 B4c6 Bb8+ Kb6 a7 Rc7 Qf8 Bab7 a8R Qc8 Ra5 Ba8 Rc5 Bcb7 Ba7+ Ka6 Qe7 Qb8 Qd6+ Rc6 Bb6 Rc8 Bc7+ Ka7 Rc6 Re8 Rb6 Re5 Rc6 Qgg1 Rb6 Rc8 h8B Qg8 Bg7 Nc5 Bh6 Bh7 Bg5 Qa6 Bh4 Nd1 Bf2 Nd3 Bg1 N1f2 Qe6 Nh3 Ng2 Qh8 Ng8 Rh5+ Qe5 Nhf2 Rg6 Qg7 Nf6 Qg8 Qe6 Rhf5 Bch2 Rc7 Qd6 Re5 Nf4 Nc2#
R2RN1B1/nr1N1p2/qPK2b2/R1n1BN2/qQnb4/7b/3rPr2/1q3rkn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 b4 d5 c4 h5 g4 a5 c5 h3 g5 a3 c6 h4 g6 h2 g7 a4 c7 h3 Ra2 d3 Qc2 d4 Ra1 f3 Qc4 a2 Bf4 d2 Kb6 d1R b5 f2 Qb3 d3 Qc4+ Qd4+ Qc5 d2 Bg3 Ke3 Bh4 a3 Bg3 Na6 Nf3 Rb8+ Kc6 Nh6 g8R Nf5 b6 Rb7 Bh4 Bg7 Qc2 Nc5 Bd8 Bf6 Ne5 Qa4+ Kd5 Nd6 Nd7 Nb5 Bg2 f1R Be4 Kf2 Qc4 Rh6 Rhg1 h1N R1g5 h2 Nc3 Bd4 Qb4 Rf6 Re5 Rf4 Rh8 Kg1 Bh7 R4f2 Ne4 Qa6 Nd6 Qa4 Nf8 Bh3 c8N Qa6 Kc6 Qa4 Rc1 a1B Ne7 a2 Nef5 Bac3 Bf6 a1Q Bg7 Qa6 Nd7 Q1a4 Ree8 Bf6 Rb1 Bcd4 Ref8 Rc1 Rd8 d1N Rhf8 Nb2 Bg8 Rc2 Ra1 Nc4 Ra8 Rd2 Rfd8 Be7 Be5 Bf6 Ne8 Ng3 Nf8 h1Q+ Rd5 Qe4 Nd7 Qb1 Ra3 Nh1 Ra2 Qab3 Ra5 Qa3 Nb8 Qab3 Rd8 Qa4 Nd7 Na7+
3qR3/1BnbP2k/2pb4/Rb1r3N/5B1n/3Pqr2/1R1r1QrN/2KNn1bq w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 h5 g4 f5 e4 Kf7 g5 Kg6 a5 b5 a6 h3 a7 c3 e5 c6 e6 h2 Na3 c2 Bg2 h4 Nb1 h3 Ba3 c1B Ke2 b3 Nc3 b4 Nf3 b2 Qf1 b1R Kd1 b3 Ne2 b2 Ng3 Bd7 Qd3 Rh5 Nf1 Na6 Qc4 Ne7 Ra2 Kh7 Qb3 Ng6 Qb8 Nc7 Ne1 f3 Qb5 f2 Nf3 f4 Qb8 Bd6 e7 Nh4 Ne3 f1B Qb6 Bb5 d3 Rb8 Re1 h1Q a8R h2 Bh3 Qg1 Bb4 h1Q R2a5 Ra1 Nh2 b1N Bd2 f3 Qc5 f2 g6+ Kg7 Kc2 f1R Re2 Rf3 Nd1 Rd5 Bf4 Nd2 Qf2 Kh8 g7+ Kh7 g8N Ra2+ Kc3 Bb2+ Kc2 Bd4+ Kc1 Qg5 Be6 Qe5 Bg4 Qe3 Nf6+ Kg7 Nh5+ Kh7 R5a7 Rb6 Be6 Rba6 Rc8 R6a4 Ra5 Ba7 Bg3 Rg4 Bf4 Rg2 Bh3 Nc4+ Rd2 Na3 Rb8 Nc2 Ra8 Be8 Bc8 Bd7 Bb7 Ne1 Rc8 Qe2 Rb2 Bac5 Rb1 Rd2 Rb2 Qe5 Qe2 Bg1 Qf2 Qe3 Rb8 Qg8 Re8 Qf7 Rg8 Qe8 Rf8 Qc8 Re8 Qd8
1bR5/2BbKn2/1rN2NbN/1k1n1B1n/2bPn1r1/1nP1Qr2/Rp2qB2/1n6 w - - 0 1 illegal: No proof kernel
1BbNN1n1/1Qr1b3/qr1r1P2/3p2R1/B1r3b1/K3R2r/2nPbn1B/1k1rR3 w - - 0 1 legal: proof: g4 c5 e4 a5 b4 h5 e5 hxg4 e6 c4 Ke2 axb4 Ke1 fxe6 Qe2 e5 Qe3 e4 Qb3 cxb3 Kd1 Kf7 c4 Kg6 a4 Kf5 f4 b5 h4 g5 c5 e5 c6 d5 h5 g3 c7 b2 Kc2 g2 Kb3 e3 h6 Ke4 h7 e2 f5 Kd3 f6 e4 a5 e3 a6 g4 a7 g3 Rh4 Nc6 Nf3 g1R Ra5 g2 Rh3 Qd6 Ng5 Ne5 Rh4 Qa6 Rf4 Be7 Rc4 Ng4 Rc6 Nf2 Na3 b1B Kb2 b3 Rb6 b4 Re6 Rb8 a8R Rb6 Rb8 Rd6 Nf7 Bc2 Rb7 Bd1 Nd8 Rh1 Nb5 g1R Ra4 Rh3 Ra1 Rg4 Re5 Rgh4 Rg5 Rc4 Rb6 Bg4 c8Q Rc7 Qb7 Rc4 Bg2 e1N Bf1+ e2 Nc7 Nc2 Ne8 Rc7 Rc6 Rh4 Bh3 e1R Rc5 Bge2 Bd7 Rc4 Ba4 Bg4 Rb1 Bde2 Rc6 Rd1 Ra1 Rdd7 Re6 Rd6 Re3+ Kd4 Kb1 b2 Ka2 b1B+ Kb3 Bc8 Ba3 Beg4 Kb2 b3 Bb4 Ne1 Ka3 b2 Ba5 Bd3 Bb4 b1R Ba5 Rcd7 Bc7 Rbb6 Bb8 Rdc7 Rc1 Bde2 Ra1 Nh6 Rb1 Rg8 h8B Nc2+ Ka2 Rf8 Bg7 Rh8 Bf8 Ng8 Rc1 Na1 Ka3 Rh4 Re4+ Kd3 Rb1 Rh3 Rb3+ Kc2 Rbe3+ Kb1 Bh6 Bd3 Re1 Bf3 R4e3 Bfe2 Rg6 Beg4 Bf4 Bf1 Rg5 Bfe2 Bh2 Nc2#
K2r2N1/3q1rRN/Bb3r2/n4kbr/nqrPN2R/2B1Rp2/1Qb2P1b/6r1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 Ke2 Kd7 Ke3 Ke6 g4 h5 d4 b5 a4 c5 g5 f5 g6 f4+ Ke2 e3 Kd3 c2 Ke4 b4 g7 c4 a5 b3 a6 h3 a7 f3 Rh2 h4 Bd2 c1B Qe1 b2 Be2 c3 Ra5 c2 Rg2 h2 Bb5 h1R Bb4 h3 Qf1 h2 Ba4 e2 Ra6+ Nc6 Bc3 e1B Nh3 Nf6+ Kd3 Rh5 Kc4 Bg5 Kb5 c1R g8N Nd7 Rb6 Rg1 Rb7 h1R Ka6 Na5 Nf6 Nb6 Bb5 Qd7 Qe2+ Kf5 Nd5 e5 Bb4 e4 Bc4 e3 Nd2 b1R Rg4 Bd6 Bc3 Bb8 Ne4 Na4 Qb2 e2 Bd3 Rh7 Rh4 Rf7 Ndf6 Ra1 Bd2 Rc4 Bc3 Bed2 Ng8 e1Q Be2 Bd8 Nhg5 Bb6 Nh7 Bg5 Rg4 Rh5 Rh4 Qe8 Bf1 Be6 Re7 Qd7 Bd3 Rf6 Rg7 Bf7 Be2 Bg6 Bf1 B8c7 Bd3 Rd8 a8R Bb8 Ra7 Qc6 Rae7 Qd7 Bf1 Rf7 Nd2 Rc1 Re3 Rc6 Ne4 Rcf6 Bd2 Rc4 Bc3 Qb1 Qc2 Qb4 Qb2 Nb3 Bd3 B8c7 Kb7 Bb8+ Ka8 Na5 Be2 Rc5 Qd2 Ke6 Ba6 Rc4 Nd6+ Be4+ Nb7 Kf5 Qb2 Bd3 Nc5 Bc2 Ne4 Bh2+
1b1Q4/1BbqbNn1/1n1N1R1b/br2pn1K/4RP1B/2Rb1n1P/q5r1/5k1B w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 d4 Ke6 a4 Kd5 f3 b5 a5 g5 a6 c5 a7 e5 h3 b3 Qd2 b2 Ra3 b4 Re3 b3 Na3 b1N Kf2 g3+ Kg2 g4 Bd3 c3 Be2 b2 Qd1 c2 Qd3 c4 Bd1 c3 Ne2 Bf5 Qa6 Qd7 Rg1 Nf6 Qc8 Nh5 Qe8 Ng7 Nc4 Nd2 Qc8 b1Q Rd3 e3 Rh1 Qa2 Rf1 Be7 Qa6 Rg8 Ng1 e2 Qh6 e1B Ba3 c1B Qh4 c2 Rb3 Bd3 Kh1 g2+ Kh2 Nc6 Bc5 Rab8 a8B Ba3 Nd6 c1B Bb7 Nc4 Rc3 Bh6 f4 Bd8 Nf3 Nb6 Ng5 Bc7 Ngf7 g1N+ Bc2 Bd2 Kg3 Nf3 Qd8 Bb4 Re1 Ba5 Rc4 Bdb4 Rc3 Ba3 Re4 B3b4 Kf2 g3+ Ke3 g2 Bd1 Nd2 Bf3 Ba3 Kf2 g1B+ Kg3 B3b4 Bh1 Nf3 Nc4 Ba3 Be7 Bad6 Bh4 Be7 Ncd6 Be3 Nf5 Bg1 Kg4 Be3 Rb3 Kc4 d5+ Ncd4 d6 Bf2 Rb1 Kc3 Rb3+ Kd2 Rc3 Be3 Ng5 Ke2 Nf7 Qb5 d7 Kf1 N5d6 Ndf5 Qe8 Bg1 d8R Bd4 Qd7 Qc6 Qc8 Qd7 Rf8 Bc5 Nb5 B5d6 Qd8 Ne8+ Kh5 Rg2 Bc6 Rb7 Bd5 Bb8 Bc6 Bdc7 Nbd6 Nc4 Bd5 Rb5 Bb7 Nb6 Ng5 Qd5 Rf6 Qa2 Ngf7 Neg7#
1rqN1k2/b3R3/2Bbn3/PN4R1/N1b2Pr1/bbK1rbq1/4pB1Q/R2r3n w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e5 h4 d5 a4 b5 c4 g5 f4 b3 a5 b4 c5 d3 c6 g3 h5 d4 h6 g2 h7 b2 c7 b3 Rh5 g4 Qf3 e3+ Kd1 g3 Bd2 e4 Qe2 Ne7 Rh2 Bg4 c8N Rg8 h8R Na6 R8h3 Nf5 Bc1 d2 Rh4 Ba3 R2h3 Kf8 Rh7 Rb8 R3h4 Nc5 Rh8 Ne6 R4h5 Bf3 Nc3 b1R Rg5 b2 Kc2 d1R Na2 d3+ Kc3 d2 Ne7 Qc8+ Qc4 e2 Nb4 e1B Rh3 e3 Ne2 g1B Rh1 g2 Rh4 Ng3 Nf5 Nh1 Nd6 Bgf2 Rh8 g1Q Nb5 Qg3 Rh7 Rg7 Bg2 Bg1 Re5 Rg4 Nc6 Bef2 Rc5 Re1 Re7 d1B Qb4 Bb3 Nd8 Bc4 Bd2 Rbd1 Rg5 b1B Qb2 Bba2 Qc2 Bab3 Qh7 Rf1 Be1 Bd6 Qh2 Ba3 Nc1 e2 Nd3 Bfc5 Nb2 Bd6 Na4 Ba7 Bf2 Rd4 Rc7 Rfd1 Re7 Re4 Bh3 Rh4 Bf5 Re5 Be4 Rg4 Bc6 Re3+
qQNKRR2/q4r2/4n1P1/B2P2n1/2n1pbB1/4k3/N2n1nR1/bb1nB1rb w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 a4 e5+ Kh5 b5 f4 c5 g4 e3 f5 c3 a5 h3 g5 e2 g6 e1Q d3 h2 f6 c2 Kg5 h5 a6 b3 a7 h4 Bb2+ Ke3 d4 c1N d5 c4 Bg2 c3 Nf3 c2 Bf1 h3 Ra6 b4 Rc6 Ne2 Bc3 c1B Nh4 b2 Rb6 b3 Qc2 Qf2 Ba5 Nh6 Qc7 Na6 Nd2 b1N Qb7 b2 Qf7 Nc5 Qc7 Ne6+ Kh5 Bg7 f7 Rh7 f8B Na3 Nb1 Nc3 Bfb4 Nd1 Be1 Nc4 Rg1 h1B Qb8 h2 Nc3 b1N Rg2 Nbd2 Na2 Nf7+ Kg4 e4 Be2 Ba1 Bf3 Qg1 Kf5 Ba6 Bg4 Nfg5 Rc6 Qe8 Rc8 Bb5 Rd8 Ba4 Rc8 Bc2 Rd8 Qa4 Re8 Bb1 Rf8 Ndb2 Kf6 Nd1+ Qe5 Rc8 a8R Qc6 Rb8 Qa8 Qb2 Rc5 Rbe8 Rb7 Nf3 Rh7 Ne5 Rcc7 Nd7 Rh3 Ke7 Rg3 Rb8 Qf2 Ke8 Ra7 Nb6 Rf7 Rd8 Qg1 Nc8 Qf2 Rg1 Rg2 Qb8 Rg3 Rf1 Rg1 Qb2 Kf4 Ne7 Bg2 Bh5 h1N Bg4 Ndf3 Nc8 Qfa7 Rf2 Be3 Re2 Nfd2 Rf2+ Bf3 Rh2 Nhf2 Qb6 Be5 Qb8 Bh1 Rg2 Bd4 Rd7 Ke3 Re7 Bc7 Kd7 Bf4+ Ke8 Ng7+ Kd8 Ba1 Ree8 N7e6+
5r2/rnqR4/2Rp3P/1n2bRn1/4nKBB/1bqkP1rN/nr3nQ1/N5N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kf6 h4 Kf5 a4 Ke4 c5 f5 a5 g5 e3 b5 a6 f3 Kg3 f2 a7 d3 c6 b3 h5 b4 h6 d2 c7 d6 Na3 b2 Ne2 b1N Rh4 f4+ Kh2 f3 Kg3 b3 Bg2 f1R Ra2 b2 Nc4 Nc3 Rh2 b1N Rh1 Rf2 Rc2 Nc6 Ba3 Kd3 Bf1 Nb5 Qc1 d1N Qb2 Na5 Rh3 Bg7 Rc1 Nf6 Rh1 Rf8 Rh3 Be6 c8N Nb7 Na5 Qc7 Nc4 Nb1c3 Na5 Bb3 Rh5 Na2 Rc6 Rh2 Nb6 f2 Bg2 f1Q Ng1 Nf2 Bb4 Qe1 Bf3 Qc3 Nd5 Nd1 Qa1 Rb2 Qc1 Nf2 Qf1+ Kd2 Qg2 Kd3 Nc4 Bh8 Na3 Bg7 Nc2 N6e4+ Kh2 Bd4 Na1 Be5+ Nf4+ Kd2 Qf1 g3+ Kg2 g4 Rf5 Qh7 Nfh3 Qc7 Ne2 Kd3 Qg1 Rad8 a8R Rd7 Rd8 Rh7 Qh1 Rhf7 Rd7 Re7 Kg1 g2 Qh2 Rh7 Qg3 Rhf7 Kh2 g1N Kg2 Rg7 Qh2 g3 Bg4 Nf3 Neg1 Nfg5 Ba5 Nh7 Kf3 g2 Bb6 Bd4 Kf4 Nhg5 Nf3 g1R Qg2 Qb8 Bd8 Qc7 Qh1 Rg3 Qg2 Rgg8 Be7 Ra8 Bf6 Ra7 Nfg1 Rf8 Bd8 Nf7 Bh4 Nfg5 Nc2 Bh8 Na1 Be5#
2bR1Q2/nNp2nrR/b2rr1b1/b7/k1B3nN/nqnP2B1/P4NK1/1B2r3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 e4 Kc6 g4 Kb5 e5 f5 e6 h5 e7 b3 e8B+ Nc6 g5 h3 g6 f3 g7 h4 Bf7 h2 Bh5 b2 Bg2 f4 Bg6 c3 Be4 c2 Qe2+ Qd3 Nh3 Nh6 g8N Nf7 Bg6 Bb4 Qe7 Qb3 Qe3 Rh7 Qe4 Ba5 Qd5+ Ka4 Qd7 b5 Qf5 b4 Rd1 h1R Nh6 Ra6 Qd5 Re1 Qe5 Na7 Qc5 Ree6 Qd6 Rg7 Ng1 h3 Bf5 h2 Bg6 h1B Na3 b1N Nb5 Nc3 Qf8 Rad6 Bf1 Bg2 Ba3 c1R Bc4 Bh1 Kf1 f2 Nf5 Be4 Nh3 Bb1 Kg2 f1N Nh4 Nh2 Rh1 Rce1 Nf2 Ng4 Bh7 Bg6 Rd1 Rd5 Nd6 f3+ Kg3 Rd4 Nb7 Rdd6 Bb2 Nb1 Be5 Nc3 Nh3 f2 Kg2 Bd7 Bg3 f1B+ Kg1 Bfd3+ Kg2 Bc8 Nf2 Be2 Bd5 Ba6 Bc4 Qa3 Rh3 b3 Rh1 b2 Rh2 Bh5 Bb1 Bg6 d3 Rh1 Re1 Qb3 Re4 Re1 Rd4 Rb6 Rd8 Rbd6 Bc2 b1N Rh1 Na3 Bb1 Nh8 Nf5 Ncb5 Rh7 Nf7 Nh4 Nc3
Rn1r4/Kp2B2b/Bn1P3N/1Qq2b1b/RR2r3/nnk2NqP/3Nnn2/2b5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 a4 Kc6 e4 Kc5 d3 Kd4 h3 c5 e5 g5 e6 f5 e7 f3 e8R c3 a5 f4 a6 b3 a7 c2 Re6 g3+ Ke1 g2 Kd2 f2 Re3 b2 Rh2 f3 Ra3 g4 Nc3 g3 Be2 f1B Re5 b1N+ Ke1 c4 Nd5 c3 Nb4 Qg5 Rb3 Nf6 Ra5 Nd5 Ba3 c1N Ra4 Nb6 Nd5+ Bb4 Qc2 Rh4 Ne3 Re4 Ng4 Qc5 Nh6 Bf5 Qb2 f2+ Kd1 Bh7 Kc2 Bf5 Bd1 Be2 Nf3+ Kd5 d4 Kc4 d5 g1Q Rh1 g2 Rh2 Nd3 Rh1 Bf1 Be2 Qh2 Rg1 Qg3 Rh1 g1N Rh2 Qg7 Rg2 Qe5 Rg8 Qg3 Rd8 Bg2 Re8 f1B Rf8 N8d7 Rg8 Rd8 a8N Bh1 Rf8 Bfg2 Bf1 Ne2 Rg8 Nc8 Rh8 Nf2 Nb6+ Kb5 Nc4 Nb8 Ncd2 Nb6 Ne1 Bf3 Rf8 Nd1 Kd3 Bh5+ Nef3 c2 Qe5 Nd4 Rb2 Nb3 Be2 Ba5 Bb4 Na3 Re8 Qc7 Be7 Qc5 d6 Bc3 Rb1 Bb2 Qd5 Bc1 Qc4+ Kc6 Qb5+ Kd5 Bf1 Nd4 Rbb4 Bh7 Rc4 Nf2+ Kc3 Ne2+ Kb3 N6d7 Rab4 Bf5 Ka4 Nb6+ Ka5 Bg2 Ra4 Bh1 Rcb4 Bh7 Ng1 B1f3 Rf8 Bfg4 Ngf3 Bgf5 Ne1 Nf4 Nb1 Na6 Bh4 Nd7 Be2 Ra8 Rb8 Be3 Be7 c1N Nf3 Bd2 Bd3 Nfe2 Rf8 Nd4 Rb8 Nce2 Rh8 Bc1 Nbd2 Rc8 Rd8 Rc7 Ra8 Rc8 Ng5 Rd8 Bc4+ Ke5 Ngf3+ Kf4 Bd3 Ke3 Bc4 Nab8 Bd3 Qc4 Qc6 Qc2 Ba6 Qc5+ Rb5 Kd3 Qd5 Qc4 Rbb4 Kc3 Qe5 Nf8 Kb6 Nfd7+ Ka7 Nb6 Qd5 Nb3 Qb5 Qc5
Rb1r2r1/N1bbK2k/1Bb4n/2N3b1/7N/2pPb1Qq/R1PR1n2/B3rbb1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 axb6 Ng1 b5 Qf3 b4 Qe2 Nc6 Qd1 Nb8 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 c5 h4 e3 a4 c4 f4 e2 h5+ Kh7 h6 e1B a5 g5 f5 g3 a6 b3 a7 g4 f6 c3 f7 b2 Ra3 b4 Rb3 Na6 Qe2 Qd7 Nf3 g1B Ra3 g2 Rh4 g3 Ra2 b3 Rh1 Qh3 Qe3 Nb4 Qg5 Bd7 Rh2 Be3 Qf6 g1B Qa6 g2 Qa4 Rd8 a8N Nd3+ Kd5 e5 Qf4 e4 Ra7 Nf2 Qh4 Bf4 Ra2 e3 Qg3 e2 Nh4 B8d6 f8R Bb8 Na3 b1B Nb5 b2 Nb6 Bfc7 Na4 Bf4 Ra3 Ba2+ Kc5 b1B d3 Bae6 Bb2 Bba2 Ba1 Bad5 Ra2 B5c6 Na7 Bed2 Re8 e1R Rf8 Bfc7 Re8 Bg4 Rf8 Bb5 Kd5 Be2 Nc5 Bdf4 Re8 Ng4 Rf8 Bdc6+ Ke6 Bge3 Kf7 g1B Rg2 Bf1 Rd2 N8f6 Ke7 Rg8 Re8 Nf2 Rf8 Kh8 h7 N6g4 Re8 Kg7 h8B+ Kh7 Bd4 Nh6 Na4 Rd6 Bb6 Rd5 Rc8 Rdd8 Nc5 Bd7 Qh2 Bbc6 Qg2 Bce5 Qg3 Bbc7 Ra8 Bb8 Ra4 Bec7 Ra2 Bg5+
1B1q4/R1rbkrnR/1r4nq/Bqp5/P2br1n1/NqP2n1K/3N4/2Q1BR2 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 axb6 Ng1 b5 Qf3 b4 Qe2 Nc6 Qd1 Nb8 d4 e5 h4 c5 f4 g5 Kf2 b5 Kg3 e3 a4 e2 c3 e1R f5 e4 d5 e3 d6 e2 d7+ Ke7 h5 b3 h6 b4 h7 b2 Bf4 b3 Qd3 Ra6 Qd5 Nh6 Be5 Bg7 Qd1 Rf1 Bf4 e1R Nh3 g1N Rh2 Nc6 Qc1 Nf3 Be3 Bd4 Rc2 Nce5 Bf2 Ng6 Re2+ Nfe5 Ng1 Rb6 Rd2 Re4 Na3 b1Q Nf3 b2 Kg2 g3 Nh2 Neg4 Kh3 g2 Re2 g1Q Be1 Qh1 Rd2 Qc2 Rd3 b1Q Rd1 Rg8 h8R Rg7 Rh7 Qb5 Rd2 Qcb3 f6+ Kd6 f7 Nf5 f8B+ Rge7 Bh4 Ng7 Be1 Rf2 Rb1 Rf7 Rf2 Ke6 Rf1 Kd6 Kg3 Ke6 Nf3 Qh6 Nd2 Nh2 Rb2 g4 Kg2 g3 Rb1 Ng4 Rb2 Qe8 d8B Rc7 Bd6 Bd7 Be5 Rcc6 Bdc7 Ke7 Bb8 Qd8 Bec7 Nh4+ Kh3 g2 Rb1 g1N+ Kg3 Rb7 Ba5 Ngf3 Kh3 Rbc7 Rb2 Rb6 Rb1 Qd1 Rb4 Bf2 Rd4 Qdb3 Rd5 Bd4 Rd6 Rbb7 Ra6 Rb6 Ra7 Ng6+
2bB4/3R1rRn/3r2KP/bqB5/k3p1N1/3b1Bn1/nq2nQP1/Rr1rbN2 w - - 0 1 illegal: No proof kernel
2b2k2/BP1B1N2/2Q3q1/1Br2N1n/1n1PRbpq/1qRK1N2/brn3q1/n2b4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 c5 Kd2 a5 h4 f5 e4 g5 b4 c3+ Kc2 c4 e5 g3 b5 g2 h5 f3 e6 a3 h6 f4 h7 a4 e7 a2 b6 g4 b7 f2 Nh3 g1Q Ba3 f3 Bg2 f1B Rh2 f2 Qc1 Bh6 Qb2 Nc6 Ng5 Nb4+ Kc1 c2 Kd2 c3+ Ke3 c1Q+ Ke4 c2 Rh1 Ra5 Bh3 Qd1 Nf3 c1Q Nfd2 Qb3 Nf3 Qg2 Qe2 Bf4 Qc2 Rc5 Nd2 Qcb1 Nc4 Be2 Rc1 f1B Ne3 Bd1 Nf5 Kf7 e8B+ Kf8 Bd7 Qh4 Qd3 Bfe2 Rc3 Bf1 Qc2 Bc4 Bb2 a3 Bc1 Bb8 Bf4 Nf6+ Ke3 Bf7 Qe4 Bc7 Qc6 Nh5 Be5 Bb8 Bc7 Q1c2 Bb6 Bc7 Rb1 a1N Ba7 a2 Rb2 Qb1 Re2 Nac2+ Ke4 a1N Ree3 Qh1 Bf1 Qg2 Bb5 Bf4 Re1 Rg8 h8N Rg6 Ree3 Bc4 Nf7 Rf6 Qc7 Ra6 Re2 Ra2 Qc6 Rb2 Re1 Q1a2 Ree3 Qa6 Re1 Qba3 Re2 Ba2 Ree3 Qb3 Re1 Nd5 Kd3 Qb6 Re4 Qa6 Qc7 Qg6 Qc6 Ndb4#
7B/nPq4k/B2QN1qr/b7/nPbqn1N1/3p1R1K/N3qB1n/rbR1b3 w - - 0 1 illegal: Other
r5Nq/1PbK2RN/qq2bP1n/q5r1/n1B1nb2/1QRnb3/p1Bk3B/1R6 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 Kc4 b5 e5 c3 d5 f5 h5 f6 a5 b6 h3 g5 h4 g6 e3 Kf3+ d3 g7 d4 Ke4 e2 b7 e1N Bg2 d2 Nf3 h2 Ba3 d3 Qc1 d1N Be7 d2 Qc2 h3 Ng1 a3 Bd6 a4 Qc1 a2 Qb2 a3 Bf3 Rh5 Qc1 Be6 Qb2 Qa5 Be2+ Nd3 Bg4 Rg5 Nf3 Na6 Bb4 Bc5 Nh4 Nh6 g8B Be3 Rg1 h1Q+ Nf3 h2 Bd6 Qb6 Rg3 Qe1 Bf5 h1Q Bc7 Qhf1 Qc2 N1b2 Qb3+ Kc5 c4 d1Q Rg1 Qea5 Nc3 Na4 Rb1 a1B Nd5 a2 Ne7 Qh3 Bf7 Qdf1 Ng8 Bf4 Rg3 Bd4 B5g6 Bde3 Bf5 Rh5 Rg7 Qh4 Ng5 Qe2 Nh7 Rg5 Bg4 Qf1 Bd1 Qh2 Qb2 Qh4 Bb3 Kb4 c5 Qe2 Qa3+ Kc3 c6 Kd2 Bc2 Ne1 Bh5 Nf7 Bd1 Bg3+ Bg4 Qf1 Nh6 Bc5 Nf8 Qh5 Ng8 Qh8 Bc2 Nh6 Bgd1 Qfb5 Bb3 Nd3 Bdc2 Bd4 Nh7 N6c5+ Kf3 Qb5a6 Bb8 Ne4 c7 Nd6 c8R Bg1 Rc3 e4+ Kg2 e3 Kf3 e2 Bc4 e1B Qb3 Be3 Bc7 Nb5 Ke4 Be5 Bd6 B1g3 Bb8 Bg4 Kd5 Nd6+ Qb5 Ne4 Bd6 Bf3 Ke6 Bg4+ Ke7 Be6 Qb3 Bd5 Kd7 Bh2 Ba3 Bc7 Bd6 Bf7 Bg3 Bd5 Bf2 Bhf4 Bg1 Bf7 Bh2 Be6+
4n2b/PBqq3p/Rr4n1/4n3/1q1Pb2B/n3bNK1/1qR1QbN1/kNRr4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 a4 Kd6 e4 Ke5 g4 Kd4 g5 f5 d3 b5 a5 c5 g6 h3 a6 h2 e5 b3 a7 f3 e6 c3 g7 c4 e7 b2 e8N c2 Be2 f4 Na3 Kc3 Be3 c1B Nf6 b1N Bf1 Kb2 Nh5 b4 Be2 b3 Nb5 c3 Qe1 c2 Qd1 Na3 Bd2 Bf5 Nd6 Na6 Ba5 Be4 Nb5 Qd7 Qd2 Nc7 Bb4 Rb8 Qe3 Rb6 Nd6 Ne8 Ba5 Ne7 g8R Bg7 Nf7 Ng6 Qc5 Be3+ Kf1 c1B Qe7 f2 Nf3 Bc5 Kg2 f1N Ng3 Nd2 Nf1 Bg1 Ng5 Ndc4 Qb4 Bce3 Ne6 Nce5 Qe1 Qc7 Rf8 Rg8 d4 Bh8 Rc1 Ka2 Bd1 b2 Rc2 Ka1 Qe2 b1Q Be1 Qb2 Bh4 Qb4 Kh3 Qd7 Rf6 Rf8 Ne1 f3 Kg3 f2 Nd2 f1Q Nb1 Rg8 Ng2 Qf2+ Kh3 Qc7 Ng5 Qf5+ Kg3 Qfd7 Rfc6 Rf8 Rd6 Rf1 Nf3 Qb2 Rd5 Qb4 Ra5 Qb2 Ra6 Re1 Rc5 Rf1 Ba4 Rd1 Rc2 Rc1 Qb5 Re1 Nf4 Bgf2+ Kg2 Rc1 Qd3 Re1 Bc6 Rc1 Rf1 Bg1 Bb7 Re1 Kg3 Qb4 Rc1 h1Q Rf2 Rd1 Rg2 Qd5 Qb5 Qdb3 Rgc2 Qb2 Bf6 Qh5 Ng2 Qf5 Qe2 Qfd7 Bh4 Bgf2+
3Nn3/q1b2b1K/n1rQBn2/R7/2n1n2N/B2PpN1r/1Pb1BpR1/k1q2q2 w - - 0 1 illegal: No proof kernel
r6b/1n5b/2NRqr2/1b2bB2/2pb1rP1/1p2BnP1/n1QK2q1/k2N1BNR w - - 0 1 illegal: Other
2bnKBb1/1qR3NB/2r3Bk/2Rr2q1/p1p2q2/3PnR2/qbPN4/1rQq4 w - - 0 1 legal: proof: f4 g5 e4 b5 a4 bxa4 h4 gxh4 e5 d6 Qe2 dxe5 Qh5 exf4 Qd1 f3 Ra3 h5 Kf2 f5 Ke3 Kf7 Kf4 Kg6 Ke5 c5 b4 a5 g4 h3 b5 h2 d3 h4 b6 f2 b7 h3 g5 f4 Qd2 f3 Qd1 Nh6 Bg2 f1Q Qd2 f2 Bd5 Bg7+ Ke4 e5 Qe2 Nc6 Rb3 a3 Rc3 c4 Bb2 a2 Rb3 a1Q Qe3 a4 Nf3 Ra5 Rb5 Nf5 Nd4 Qa2 Ne6 Rh6 Ba3 Qe2 Bc5 f1Q Bf8 Qff2 Rg1 h1B+ Rg2 h2 b8R Kh5 g6 Qg5 R8b7 Nd8 Rc7 Bh8 Ba8 Qff4+ Kd5 e4 Rf2 Bb2 g7 Qeg4 Qd2 e3+ Kc5 e2 g8B e1R Be4 Qgf3 Bh7 Ne3+ Bef5 Rf6 Ng7+ Kh6 Qd1 Rd6 Nd2 Qb7 Qa1 Be4 Rf3 Bd5 Bfg6 h1Q Qb1 Rc1 Qa1 Qd1 Qb1 Bc3 Qb2 Rb1 Qc1 Ra7 Ra5 Bb2 Rb5 Re6 Ra5 Re5 Kd6 Bg8 Rac5 Rf5+ Re5 Rf6+ Ke7 Ra5 Ke8 Rd6 Rd5 Raa6 Rf5 Rac6 Rc5 Rd5
RB1R1n2/1Qqr4/Bb4qq/4p3/2NNqr1r/b1PR4/P2p4/nbq1Nk1K w - - 0 1 illegal: No possible last move
1R1Qn3/5rrn/b1KN1qP1/2N1P3/4rpp1/r1qBk1B1/1B4R1/Rqr1bb2 w - - 0 1 illegal: No proof kernel
1nr5/K1nBbqBN/2r1bp2/N1q2b1P/P1R3QN/3R2R1/1kp2rb1/n1b5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 a4 Ke5 e4 Kd4 h5 c5 e5 b5 d3 g5 e6 g3+ Kf3 f6 e7 b3 e8N c3 Rh2 c4 Rh3 g2 Ng7 c2 Nd2 Kc3 Ke4 g4 d4+ g3 d5 f3 d6 b4 Kd5 f2 Kc5 b2 Qe2 b1N Ne6 b3 Qe4 b2 Qh4 Qc7+ Kb5 Ra6 d7 Rc6 d8R Qf7 Rh2 Be7 Nc5 Be6 Rd5 Na3+ Ka5 b1B Ngf3 g1R Qg4 g2 Rh4 Rh1 Nb7 g1Q Be2 f1B Ng5 Rh2 Ndf3 Rf2 Nh7 Bg2 Bh6 c1B Bg7 Bbf5 Rd3+ Kb2 Rh3 c3 Rg3 Nc2 Nh4 Na3 Bf1 Nc2 Ra3 Na1 Be2 c2 Rac3 Bd6 Rc4 Ne7 Kb5 Nd5 Na5 Be7 Bd1 Rcc8 Bf3 Nc7+ Kb6 Rhd8 Ka7 Rd6 Bb7 Rc6 Ba6 Rb6 Bb5 Rd6 Be8 Rc6 Bd7 Qe1 Rf4 Qe5 Rc4 Qc5+
2QRn3/4Br1q/3bp1B1/1R2NP2/bR1nKb1b/1p3r1q/1NP2k1B/2q2b1n w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 f4 Ke6 a4 Kd5 h4 g5 h5 b5 a5 d3 Ke3 d2 f5 e6 h6 b3 h7 g3 a6 b4 a7 g4 Kf4 Kd4 Bd3 d5 Bc4 e3 Na3 b2 Qe2 b1Q Qg2 d1N Bd2 e2 Nh3 e1B Ra2 b3 Ra1 Nf2 Bd3 Qh4 Rg1 Nf6 Nc4 Bd7 Ne3 Nc6 Ra5 Ne8 Rf1 Nh1 Rf2 Qc1 Ng1 Qh3 Ra2 Bd6+ Kg5 Rf8 Nd1 Rd8 a8R Rf7 Qh2 g2 Rf3 g3 Bb5 Ke4 h8B d4 R2a3 d3 Be5 Nd4 R3a5 Qh7 Bdf4 d2 Nb2 d1B Bf6 Be2 Be7 Bf1 Rc3 Bf2 Nf3 g1Q Rc4 g2 Rb4 Bh4+ Kg4 Bc6 Ne5 Qge3 Qg1 Bd7 Bh2 Qeh6 Be2 Ba4 Rab5 Rc8 Qf2 Rc3 Rd8 g1B Qg2+ Ke3 Qb7 Rd3 Qc8 Kf2 Bd1 Re3 Be2 Qh5+ Kf4 Rf3+ Ke4 Qg4+ Bf4 Qh3 Bh2 Kg2 Bd1 Be3 Be2 Bf4 Bd1 Rc3 Bh5 Rf3 Bg6 Kf2
1bq1nRNq/r2B1R1Q/1b1PN2n/2B1nb2/2P3n1/1rp3K1/Nr2B2p/k3n3 w - - 0 1 illegal: No proof kernel
2q2R1b/N2bR2n/bP3pp1/1Q2BPNr/8/Bqn1Rrn1/1K1kn1n1/3Br3 w - - 0 1 legal: proof: e4 h5 d4 b5 a4 bxa4 g4 hxg4 d5 c6 Ke2 cxd5 Kd2 dxe4 Ke1 e3 b4 a5 f4 e5 h4 Ke7 c4 Ke6 h5 Kf5 b5 Ke4 f5 d5 c5 e2 Kd2 e1R Kc2 d4 b6 a3 h6 d3+ Kc3 g3 c6 g2 c7 f6 h7 g6 Qb3 a4 Bb2 Ke3 Nd2 a2 Rh2 e4 Qd5 a3 Qa5 Ne7 Nb3 d2 Nc5 d1B Qa7 Be2 Nd7 Bg7 Rc1 a1N Rb1 a2 Rh4 Bea6 Be2 Nc2 Rh5 a1Q Kb3 Qa4+ Kc3 Nd4 Ne5 Nd7 Ba1 Nd5+ Kb2 Kd2 Bd1 e3 Rh3 e2 Nc6 Nc3 Re3 Nf8 Nh3 g1N Ng5 Bd7 c8R Qc7 Rd8 Qc8 Qb8 Ra7 Qe5 Rc7 Na7 Rc6 Qb5 Re6 Rg3 Re3 Re8 Rf3 Re7 Nb3 Rh3 Nc5 Rc1 N5e4 Rg3 Ref1 Rh3 e1N Rg3 Ng2 Rh3 Rg8 h8B Nge2 Rg3 Re1 Rh3 Bh6 Bg7 Nh7 Bf8 Bg7 Rg3 Rh8 Rh3 Nb1 Rc3 N4g3 Rce3 Qac4 Rh4 Qd5 Rhe4 Qe6 Rf7 Nbc3 Ba3 Nf8 Re7 Rh5 Re8 Qg8 R4e7 Nh7 Rd8 Bh8 Rf8 Nd5 Ka2 Qf7 Be5 Ndc3+ Kb2 Qb3+
3bR1N1/q2r1R1b/Pkr1Bp2/1qNbnp1b/1q1BN1Q1/1B1n3n/bK4P1/8 w - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 f5 g5 f6 gxh4 Nh3 exf6 Ng1 f5 Kd2 d5 c4 Kd7 Kc2 Kc6 e4 b5 a4 h3 c5 b3+ Kb2 h2 e5 d3 e6 b4 a5 d2 e7 d4 e8B+ Nd7 a6 d3 Nc3 Ne7 Nh3 Qa5 Nf4 Ra7 Rg1 h1Q Nce2 Qh4 Ra3 Nd5 Kb1 b2 Rc3 Be7 Ne6 Bd8 Qa4+ Qb5 Qa2 d1N Nf8 d2 Kc2 b1B+ Kb3 Nb2 Rh3 Nf4 Rc3 d1B+ Rc2 Nh3 Bh6 Bb7 Bg7 Nd3 Nc3 Bh5 Re2 Qf4 Qa4 Ba2+ Kc2 Qc7 Ne4 b3+ Kc3 b2 Bd4 b1B Ne6 Rg8 Qd1 Rg6 Re1 Ba8 Qg4 Qcb6 Be2 Rc7 Bd1 Qa7 Rgf1 Rb7 N6g5 Kc7 c6 N7e5 Nc5 Kb6 Re4 Rd7 c7 B8d5 Bb3 Rc6 c8N+ Ka5 Rc1 Ndf4 Ne7 Nc4 Re6 Ng1 Rf6 Bg6 Rc2 Kb6 Rf2 Bc2 Qf3 h5 Rf1 h4 Rc1 h3 Ba4 Bd1 Ng8 Bh7 Bc2 Be2 Re1 Bd1 Re7 Ne5 Ne4 Be2 Rfe6 f6 Bf7 Bd1 Qg3 Bh5 Qg5 Ka5 Qg4 Kb6 Bb3 Qb4+ Kb2 Qb5 Re8 Qb4 Ng5 Qb5 R6e7 h2 Be6 Ngh3 Rf7 Nfd3+ Kc3 h1Q Bd1 Qa4 Ne4 Qb5 Ba4 Qg1 Kc2 Qe1 Bb3 Ndf2 Kb2 Qeb4 Kc1 Nfd3+ Kc2 Ne1+ Kb2 N1d3+
nk4rq/4RnbP/RN2N3/1qB2Bb1/K3QPrn/2qnpR1b/6pn/6N1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 d5 h4 Kd7 f4 Kc7 c4 e5 Kc2 b5 Kb3 g5 a4 d3 c5 e3 a5 e4 h5 d4 c6 e2 h6 e1B a6 g3 h7 g2 a7 e3 Ne2 g1N Ra6 g4 Rh2 g3 Ra1 d2 Rh3 d3 Ra2 g2 Na3 Na6 Nc4 Bg7 Rb2 Nf3 Ra2 Nh2 Nd4 Bh4 Ra1 Bg5 Nd6 Nh6 Rb1 Rg8 Qc2 d1N Ra1 d2 Nf3 Nf2 Ra4 d1Q Nh4 Qe1 Nc4 Nf7 Qc3 Nd3 Rf3 Bh3 Ba3 Qc8 Qd4 Qc3+ Ka2 Rb8 Qe4 Qf8 Nb6 b3+ Kb1 b2 Ka2 b1N Bc5 Re8 a8N+ Kb8 Nc7 b4 Ne6 Nc7 Ra6 Nd2 Be2 b3+ Ka3 b2+ Ka4 b1Q Bd1 Qbb2 Bc2 Na8 Bb1 Rd8 Bc2 Rd5 c7+ Kb7 c8R Qe8+ Rc6 Kb8 Bb1 Qf8 Rc7 Re5 Rf1 Ndf3 Re7 Rf5 Rf2 Rf6 Rf1 Rg6 Bc2 B5h6 Rf2 Rg4 Rf1 Bg5 Rf2 Nf3e5 Nf3 Ng6 Ng1 Nh4 Rf3 Bd4 Nd8 Qg7 Ne6 Qh8 Qd5 Bg7 Qc4 Nf2 Bf5 Nd3 Qe4 Qb5+
nR4N1/1r1K1p1P/1Rn2rb1/BB5p/1Nb3Nr/bPk4b/q4b1n/3Q1Bq1 w - - 0 1 illegal: No proof kernel
2bN1B1r/RQ2PBp1/K1n1r1pP/nR2q2R/1Nn2k2/1b5q/3nqn2/1N4b1 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 g5 a5 g6 axb4 Bh3 hxg6 Bg2 Ra6 Bf1 Ra8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 d5 a4 f5 h4 b3 e4 d3 c4 b2 c5 d4 h5 d2 a5 f3 c6 f4 h6 d3 a6 f2 c7 f3 a7 Qe7 Be2 f1Q Na3 b1N Qa4 d1N Rh3 f2 Bb2+ Kf4 Qb3 d2 e5 Nc6 e6 Na5 Bc4 Qe2 Nc2 f1Q Rh5 Nf2 Ba3 d1B Nf3 Nd2 Rb1 Qh3 Nb4 Qe8+ Kb6 Ne7 Rb2 Rb8 a8R Nec6 Ra7 Bc5+ Kb5 b6 Rb1 Rb7 Ka6 b5 Bd5 Ndc4 Nd2 Bb6 Rb2 Qe5 Nb1 Qe7 Nc2 Qe8 Bf8 b4 e7 Qed7 Qa4 b3 Bf7 Qdg4 Nb4 Qge2 Qb5 Bd4 Qb6 Rb8+ Qb7 Bc5 Rd2 b2 Rd5 Bd4 Rb5 Bb3 Nd2 Ng4 Nb1 Bg1 Nd2 Nf2 Nb1 Bd7 c8N Bg4 Na3 b1N Nd6 Nbd2 Nb1 Bf5 Bd5 Rd8 Nf7 Rd6 Nd8 Bc8 Bf7 Re6
R4bn1/3Npqn1/2pbPr1n/1q4rB/1N2b2R/B2nPK2/1r3nQ1/1kBR4 w - - 0 1 illegal: Other
nr3RN1/2nPbBnb/k2qn3/2q1qRK1/4R1Br/2p1QN2/pPb2B2/6n1 w - - 0 1 illegal: No possible last move
5bBB/bR1P1b1R/b4q2/PQ1rR3/p2NKNnp/r3q1kr/1q1bB3/1n6 w - - 0 1 illegal: No proof kernel
Rqq5/n1PNK3/r4p1n/qPBqB3/br1N1q2/1Nb2p2/RQr2kB1/7n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 a3 c5 d2 c6 f3 e4+ Kf4 c7 Ke3 h5 a2 e5 g3 e6 g2 h6 f6 h7 a4 e7 a3 Kd6 g4 Bb2 g3 Rh3 Nc6 Qc2 d1N Bc4 Ra4 Bf7 Na7 Bg6 Nh6 Qe4+ Kf2 Ne2 g1Q Rh4 g2 Nbc3 Qh2+ Qe5 g1Q Be4 Qf4 Nd4 Qg8 Bd3 Bb7 Nb3 Qc8 Be2 Bc6 Bf1 Ra6 Nd5 Ba4+ Nb6 Qb8 Rb1 a1Q b5 a2 Bg2 Qgg4 Rh2 Qgf5 Kc5 d5 Kd6 d4 Rc1 Rg8 h8B d3 Bg7 d2 Rc6 Qfc8 Nd7 Rh8 Ke6 Rg8 e8N Bb4 Nd6 Bc3 Bf8 Rg4 Nf5 Rh4 Rd6 Rc6 Be7 Rc4 Ra6 Rb4 Rh1 Rh2 Nfd4 Kg3 Qe2 Nc6 Ra8 Nf2 Qe4 d1Q Rf1 Nh1 Qc2 Bd2 Rf2 Na7 Nc6 Be1 Bd4 Bc3 Qe2 Qdd2 Nba5 Bd1 Bh3 Rb2 Be5 Rb4 Bc5 Qd5+ Ke7 Bc2 Nd4 Bb3 Qd1 Rg2 Rb2 Rc2 Qc1 Kf2 Bf1 Qb1 Bg2 a1R Nb7 Ra6 Na5 Qa2 Qa1 Qa3 Ra2 Qa4 Qb2 Qa3 Nc4 Qa5 Nd2 Ba4 N2b3 Qd2 Ne2+ Qe3 Ned4 Qf4
3RN1rR/1PnpP2q/1k6/q2q1b2/1r2p3/2K1bQq1/N2N1n2/nRB1qB1r w - - 0 1 illegal: No proof kernel
4r1n1/P4B2/1BrpR1Kb/rbrQ3R/P1b1pr2/7B/Nk2qq2/1Nn2nN1 w - - 0 1 illegal: Other
nnnN1NKr/P3Pn1B/1rbqn1RN/1Q6/1pp1qR1b/3r3k/3R4/1q4B1 w - - 0 1 illegal: No possible last move
3BBnr1/1r2R3/1b2B2r/Q1p1bP2/1n3k1P/1N1r1qRp/2rN3K/rr1b1R2 w - - 0 1 illegal: No proof kernel
BrNNkbr1/4N1Pr/1rn1b1n1/2rR4/3p4/1pqR1b1B/2P3rQ/BK4r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 d5 a4 b5 e4 h5 g4 f5 e5 f3 e6 d3 a5 f2 e7 b3 g5 d4 g6 h3 a6 b2 g7 f4 a7 b4 Nf3 h4 Ra4 h2 Rg1 h1R Nh2 f3 Ra3 h3 Qe2 Qa5 Qe3 Be6 Rg2 Rg1 Rb3 Nc6 Qf4 Rb8 Rg5 Rg2 Ng4 h2 a8B h1R Nc3 b1R Ne5 R1h7 Nf7 Qa3 Kd1 d2 Nd8 Qa1 Nd5 Qc3 Qh2 Rb6 Ra3 b3 Ra5 Ra1 Rc5 Ra5 Bb2 Rb8 Rc4 Rc5 Ba1 Rb6 Bd3 Rb8 Bf5 Rb6 Bh3 Rb8 Re5 f1R+ Re1 Rff2 Re3 Re2 Rb4 f2 Rd3 Re5 Rc4 Rcb5 Rc5 R5b6 Ne3 Rd5 Nf5 Re5 Ra5 Rc5 Rb5 Nh6 Ra5 Nf7 Rb5 Nfe5 Ra5 Kd7 e8N Rg8 Ned6 Ng6 Nc8 Ke8 Nfe7 Qb2 Ke2 d1B+ Kd2 Qc3+ Kc1 f1R Kb1 Rfg1 Rb5 Rc4 Rg5 Rc5 Rd5 Bf3+
1b1rNRB1/4N1b1/1P2r1nR/K1q2q2/1nr1p1bq/3pRn2/3P4/2QnNk1B w - - 0 1 illegal: No possible last move, all moves rejected
2R1b3/1n1BP2p/BR2qPq1/bb6/6Qp/Brr2Rnn/4kN1N/Krn3q1 w - - 0 1 illegal: No proof kernel
R1K2bk1/R1p1B1q1/rnPr4/3q1p1B/q1r2P1N/1Br4R/3bn2N/n3Q2b w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 a4 gxh4 b5 a6 Qg4 axb5 Qh5 bxa4 Qd1 a3 Ke2 b5 Ke3 h5 Kf4 f5 Ke5 Kf7 d4 b4 f4 e3 g4 e2 c4 e1R+ Be3 b3 g5 b2 c5 h3 d5 a2 d6 h4 d7 h2 Qa4 h3 Qc6 Nf6 g6+ Kg8 Ke6 Rh6 g7 Qe8 Qb5 Bb7 d8R Nh5+ Ke5 Nd7+ Kd4 e5+ Kc4 e4 Rc8 Raa6 Bd4 e3 Qb4 e2 Kb5 Ng3 Ra8 Rc1 Bf6 e1B Nd2 b1Q Be2 Rc3 Bh5 Ne2 Be7 Qb2 Ngf3 Rhd6 Nf1 Bd2 Nh4 Bd5 Ra7 Qa8 c6 Be4 Rg1 h1Q Rg3 h2 Re3 Qg2 Rh3 h1R Nh2 Rd1 Rc1 Rc4 Ra1 Qd4 Qc3 Rc1 Qg3 Qd8 Qe1 R1c3 Ra8 Qg5 Ra7 Bh1 Ra8 Kh7 g8B+ Kh8 Be6 Qgg7 Bef7 Rca4 Bb3 Rac4 Rb1 a1N Rb2 Raa4 Ra2 Kg8 Ra3 Rb4+ Ka6 Ra4+ Kb7 Ra6 Ra2 Qd5 Ra5 Qe8 Ra2 Qef7 Kc8 Qb5 Ra5 Qa4 Rb5 Qe6 Rb7 Qd5 Rba7 Nb6+
Bb6/1Pnnb1Rb/BB1RNp2/2nprq1k/P2NQ3/8/2q3R1/b1rr1q1K w - - 0 1 illegal: No possible last move, all moves rejected
1n3q1N/nP4Nr/R2qP1R1/8/4B1N1/1p1rbbBQ/2kq1brp/q1n2B1K w - - 0 1 illegal: No proof kernel
Q1rb1B1B/1P1B1pqR/K6r/1p1b1q1P/2rk1N2/n1rN1n2/4bq2/R5Rn w - - 0 1 illegal: No proof kernel
bK4B1/1p1Nb1RR/QBn3N1/1rn2p1q/Pq3rn1/BP2q3/1q1R4/2kb2r1 w - - 0 1 illegal: Other
qR3n2/3bK1r1/nB2p2r/1nrr2b1/1kN3P1/2rrQp1B/RPb2N2/1R1N4 w - - 0 1 illegal: No possible last move
3bB3/1b4b1/1P5b/pBqbPR1b/3R1B1n/3NRnQK/1p1Nr2q/2bk2r1 w - - 0 1 illegal: No proof kernel
4r1nn/pB2krp1/q1RN1RQ1/r1R5/2P3P1/3K4/B1Nbbr2/q1r2rrB w - - 0 1 illegal: Other
3BR1Rn/k5nr/bn1qN3/1Prb1BRp/3NP2b/b4Q2/2p1K2n/1b1B2n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Kc6 d4 Kb6 d5 a5 d6 h5 g5 c5 d7 f5 e3 a3 g6 h3 b5 a2 g7 f3 Nc3 f2+ Kd2 h2 Bh3 f1B Bb2 a4 Nce2 f4 Bg2 c3+ Ke1 a3 Qd5 c4 Qd3 f3 Qd5 c2 Qd3 c1N Qb1 f2+ Kd1 c3 Nf4 Nh6 g8B Rh7 Nd3 Ne2 B8d5 Nf7 Bb7 Ka7 Bgf3 Nf4 Bg4 Nh3 Bd5 Ba6 Ne1 Nh8 Bb7 Bd3 Ngf3 f1N Rg1 h1B Ne5 Nh2 Bc8 Bd5 e4 Bd6 Qc1 Bb1 Ke2 Be7 Rg3 Bh4 N1f3 Qe7 d8R Qd6 Qd1 Nd7 Rf8 Nb6 Bcf5 Rc8 Ng5 Rc5 Qf1 Bc2 Rc1 a1N Re8 a2 Nef3 Nb3 Ne6 a1B Nfd4 Bb1 Qf3 c2 Bc3 Bb2 Ba5 Ba3 Rcg1 Rc8 R1g2 Nc5 Rg1 Nc4 Bd8 Nb6 Qe3 Rc6 Bf3 Rc8 Rgg8 Rcc7 R1g5 Rc8 Nf4 Ne6 Qc3 Ng7 Nfe6 Rc7 B3g4 Rc6 Qf3 Rc5 Qc3 Na4 Ke3 Bda2 Bd1 Bd5 Ke2 Nb6 Qf3 Ng1+
3r2rB/3kbbr1/1n1r3p/N3P1pR/PK1Bb2r/RQ2Nbqn/2N4b/5B2 w - - 0 1 illegal: No proof kernel
r1kB4/QRN2r1B/r1N1Pq2/1nn2KRn/5Bn1/1P2rbbp/3n1p2/4rR2 w - - 0 1 illegal: No possible last move, all moves rejected
Nn1Bbb2/1rprR1pq/4BBP1/2b1Pn1k/8/3n1K1N/Rnb5/n1Qb3R w - - 0 1 illegal: No possible last move, all moves rejected
B1r3R1/PKn1nR2/2N1r3/B1B2QNr/8/p1r1rn2/2P3pR/knbbn1q1 w - - 0 1 illegal: No proof kernel
1N1R4/Q5bR/2qrRb2/1q2br1n/3p2p1/3bPk1r/3PNBnB/b1N2K1b w - - 0 1 legal: proof: f4 b5 g4 e5 b4 exf4 a4 h5 Bg2 hxg4 Bc6 bxa4 b5 Qg5 b6 Qd8 Bb5 c6 Bb2 cxb5 Ba3 Bb4 Bc1 Bf8 c4 Ke7 h4 Ke6 h5 Kf5 h6 Ke4 c5 g5 e3 f5 c6 a5 h7 d5 c7 b4 b7 a3 Kf1 g3 Rh5 a4 Ra2 f3 Rh1 g4 Qb3 f2 Nh3 g2+ Ke2 f1B+ Ke1 g1B Qc2+ Kf3 Rb2 a2 Nf4 a1B Qd3 b3 Nh5 f4 Ra2 b2 Qg6 a3 Qf7 Nh6 Qf5 Bg7 Qg6 Bd3 Qe8 Qd6 Rh4 Ra6 Nf6 Nf5 Qa4 Nd7 b8N Qc6 Ne4 Bb7 c8R Bh2 Rd8 Nf6 Nbc3 b1Q Ne2 Qbb5 N4g3 Nh5 Kf1 Baf6 Bb2 Rb6 Rh3 Nh4 Be5 d4 Qa7 Ng2 Rc2 a2 Bd6 Qe4 Rc6 a1B Bc7 Qed5 Re6 Rd6 Rh4 Re8 h8B Qdc6 Ne4 Bg3 Nc5 Ba8 Nb3 Bh2 Re4 Re5 Nc1 Rf5 Re6 Qcc4 Re5 Ne1 Qa2 Re6 Qa7 Bf8 Re8 B6e7 Nb3 Ng7 Bd8 Rd6 Rh7 Nh5 Bf6 Bg7 Rc5 Ke4 Be5 f3 Rc8 f2 Bg3 Bd5 Be5 Qcc6 Nc1 Rf3 Bf4 Rh3 Be5 Bh4 Re6 Bf4 Bg5 Bfg3 Bgf4 Bhf6 Rf8 Nf3 Kg2 f1R Rd8 Bh2 Bg5 Rf2+ Kh1 Ne1 Bh4 Rf5 Beg3+ Kf3 Bf2 Bhe5+ Kg1 Ke4 Bfg3 Bb3 Bh2 Bd1 Nf4 Bf3 Nfe2 Bh1 Bf2 Kf3 Kf1 Ng2
1nQnr1b1/K4r1k/NrBBn2B/3Ppqb1/2n3NN/4Rnp1/2P5/b2b1R2 w - - 0 1 illegal: No proof kernel
1k2qrB1/3BR1r1/2n1RbrQ/1rNp1p2/2n1Br2/b2P3P/2q1K2N/1r1bR3 w - - 0 1 illegal: No possible last move, all moves rejected
N1Q1b1k1/N2r4/r1b2Pnb/R1p1r3/1BRq2pR/1bB1bPn1/r1B5/2n1K3 w - - 0 1 illegal: Other
1B3Bn1/N4N1b/4p3/1Bbp2PR/bP2kbrn/1bK4n/r2Rr3/q3rQN1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 f4 Kg6 g4 a5 c4 h5 b4 d5 g5 Kf5 c5 h3 c6 h2 c7 e6 Ra3 d3 Rb3 h4 Nf3 a3 Kc3 d2 Bg2 h3 Qf1 d1B Qa6 a2 Qa7 a1R Qb6 e3 Qb5 a4 Kd3 e2 Bd2 e1R Bc3 a3 Qc5 a2 Bg7 Nd7 Rf1 h1B Qd6 h2 Be5 Qf6 Qa6 Rh4 Qb5 Bc5 Rf2 Nf8 Nc3 Rg4 Ne2 Bd7 c8N Ng6 Bf1 Nh4 Kc3 Ke4 Neg1 Re2 f5 Bc2 Rb2 Rae1 Na7 Bb3 Rd2 Qg7 Qa6 Bda4 f6 Bg2 f7 h1N f8B a1B+ Rb2 Bh3 Rh2 Nf2 Rh1 Bg2 Rh2 Nh3 Rh1 Rf2 Bb5 Bf1 Rh2 Bd3 Rh1 Rfe2 Rh2 Qh6 Bb8 Qh8+ Ne5 Kf4 Qb7 Bh7 Qf7+ Ke4 Qf6 Bc2 Nf7 Bab3 Nc6 Ra2 Na7 Ba4 Ne5 Qg7 Qf1 Bcb3 Rh1 Qb7 Nf7 Qa8 Rh2 Ng2 Qf6 Nhf4 Nd8 Qc6 Rh5 Nh4 Nf7 Nh3 Qf2 Qd6 Qf1 Re3+ Kd2 Qe5 Nd8 Qh8 Rc2 Be5 Nf7 Bf4 Rb2 Qe5 Rc2 Qa1 Rb2 R3e2+ Kc3 Qd1 Rd2 Qa1+
3n2Nk/3K1rR1/br1p2P1/2R1bq2/1NQ1pn1B/br1B2P1/7n/1brBN2r w - - 0 1 illegal: Other
1BbNRb2/bn1n4/1qpr2r1/n2Q1pNK/3r4/1nn5/kPP1BB2/1R3Rr1 w - - 0 1 legal: proof: f4 g5 e4 b5 a4 bxa4 h4 gxh4 e5 d6 Qe2 dxe5 Qh5 exf4 Qd1 f3 Kf2 Kd7 g4 Kc6 d4 Kd5 g5 e5 g6 f5 g7 a5 Rh2 h5 Rg2 e4 Na3 h3 Kg3 f2 Ne2 h2 Qd3 h1R Ng1 e3 Qd1 h4+ Kf4 e2 Nh3 e1B Rh2 c6 Qg4 Rh6 Bb5 f1R+ Nf2 h3 Nc4 a3 Ba4 a2 Qg3 Rg6 Qd3 Qb6 Nd6 Nf6 g8R Nfd7 Nf7 Na6 Qc3 Rfg1 Bd2 Nac5 Ng5 Nb7 Nd1 Bf2 Rc1 a1N Rb1 Nb3 Bb5 a4 Be2 a3 Ne6 a2 Be1 a1N Qd2 N3a5 Nd8 N1b3 Rg2 Rd6 Kg5 h2 Kh5 Ke4 d5 Bd4 R2g7 Rgg6 Bf2 Rhg1 Rh8 h1N Nc3+ Ke5 Qd3 Kf4 Ne4 Ra6 Ng5 Ng3+ Kh4 Ne4 Kh5 Nc3 Rf1 Rde6 d6 Bc5 Qd5 Bd4 Bh4+ Ke3 Bf2+ Kd2 Re7 Ra7 Re8 Re4 Be1+ Kc1 Bf2+ Nd1 Rh6 Kb1 Rh8 Ka2 Rg8 Nb8 d7 Nc3 Rg7 Bdc5 Rge7 Rd4 Re4 Na6 Rh4 Nb8 Rh1 Rg3 Rb1 Rg2 Rhf1 Rg1 Ndf7 Rd6 d8B Nd7 Bc7 Qa6 Nh7 Nb6 Re5 Nd8 Bb5 Rdg6 Bd6 Rd7 Be2 Ndb7 Bb8 Rdd6 Re8 Nd7 Nhg5 Ba7 Nd8 Qb6
1R1r1R2/b2BbN2/BP2P1kp/p3BRn1/3Nnn2/6n1/1n1qQrb1/1b1r2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 d5 b4 f5 g4 Kf7 c4 a5 e4 d3 g5 h3 b5 d4 e5 h2 c5 a3 c6 a2 c7 h6 Be3 d2 Bg2 f3 Bf1 f4 Be2 d3 Qc2 d1R Qd2 Na6 Bd4 Bf5 c8B Be7 e6+ Kg6 Qc1 d2 Qb2 Nb4 Bd3 Nd5 Bc3 Ngf6 Ne2 Nh7 Nd4 Rf8 Re1 h1B Bf1 Bg2 Na3 Bb1 Kg1 f2+ Kh2 f3 b6 Nf4 Bfa6 f1N+ Kg1 Ng3 Bd7 Ne4 Nc4 Rb8 Nd6 f2+ Kh2 f1N+ Kg1 Nfg3 Nf7 Ra8 Rf1 Rc8 Bdb5 Qd5 Bd7 Rcd8 Qb5 Bc2 Rb1 a1B Qe2 Qa2 Rb2 Bb1 Rb5 Bb2 Rd5 Bba3 Re5 Bad6 Rf5 Bb8 Ba1 Ba7 Bb2 Kg7 g6 Nhg5 Ba1 Rc1 Bc3 d1N Rf3 Qd2 Rf1 Kg8 g7 Kh7 Ba1 Nb2 g8R Rc3 Rh8+ Kg6 Rf3 Rd3 Rf1 Rfe8 Rf8 Rf3 Rc1 Rf2 Rc8 Qb4 Rb8 Qd2 Bc6 Rd5 Bd7 Rd8 Nc2 Nc4 Be5 Nb2 Nd4 Rc5 Qb5 Rc1+ Qf1 Rd1 Qe1 Nf1 Qe2 Nfg3+
7B/5n1N/pb1q1r2/QnPr1bR1/1Pprb2B/1B1k1nn1/2N2r1R/K2r2R1 w - - 0 1 illegal: No proof kernel
1N6/bb5p/2P1n3/bNBn1q1R/Qr1prP1R/2r1r1K1/1b2BB2/n1kN1b2 w - - 0 1 illegal: No possible last move, all moves rejected
2r3N1/1qnP2n1/nBbk1p1p/1r5P/1N2Br1N/1n3KbR/n4nQ1/2R1Rq2 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Ke2 Kd7 h4 c5 a4 b5 g4 e5 d4 h6 g5 b4 g6 e3 d5 b3 a5 e4 a6 b2 d6 f6 a7 c2 g7 f3+ Ke1 e2 Kf2 e1N h5 c4 Be2 c3 Qd4 e3+ Kg3 f2 Qd5 f1Q Qd4 Ne7 g8R Qc7 Kg4 Nd3 Nh3 Nf2+ Kg3 Na6 Rg6 Rb8 a8N Qb7 Bd3 e2 Bf4 e1R Ng1 c1N Qd5 c2 Qg2 Re4 Rh3 Na2 Nf3 c1N Nc3 b1N Be3 Nb3 Nd5 Na3 Bb6 Nb5 Rc1 Nbc7 Nh4 Rg4+ Kf3 Nf5 Be4 Ng7 Ne7 Ke6 Re1 Bd7 Ng8 Bc6 d7 Bd6 Rg5 Bh2 Rc5 Bg3 Rc2 Kd6 Rcc1 Nd5 Nc7 Rc8 Ne6 Ndc7 Nd4 Rb8 Nc2 Rc8 Ne7 Rhe8 Ng8 Re5 Nb4 Reg5 Rh2 Rb5 Rh3 Rf4+
3K1r1n/1bBp4/P1pP1BNr/n2b4/1n1bB1Rq/1nR4r/Q5Rb/1n1N3k w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 Kf2 Ke7 d4 Ke6 h4 Kd5 a4 Ke4 a5 f5 d5 g5 e3 b5 a6 f3 Kg3 f4+ Kh2 g3+ Kh3 b4 Kg4 g2 d6 f2 h5 c2 h6 b3 h7 b2 Rh3 f3 Bd2 c1N Qb3 Nf6+ Kg3 g4 Kh4 g3 Kg5 Nc6 Qb7 Nd5+ Kg6 Qh4 Kf7 Ndb4 Ke8 Nb3 Bc3 Bg7+ Kf7 Bd4 Ne2 g1B Nf4 g2 Ra2 Bh2 Ng6 g1N Bg2 f1R Qb5 Ne2 Qa4 Nf4 Be1 Nbd3 Ba5 Ndb4 Bh1 Bb7 Nc3+ Kf5 e4+ Kg4 e5 b1N e6 f2 Bb6 Nca5 e7 c6 Be4 Rh1 e8R f1B Bc7 Bc4+ Re6 Bd5 Nd1 Rae8 Rc3 Rd8 Rc4 Kh3 Rg2 Rde8 Qa2 Rc8 Rg5 Rcf8+ Ke7 Rf6 Rg2 Rf1 Nf8 Ng6+ Kd8 Rf7+ Re7 R1f6 Re5 Rf3+ Reg5 Rg3 Rc3 Re3 Rg4 Rg3 Bc2 Kg2 Bd3+ Kh1 Be4+ Rgf3 Rg2 Rg8 h8B Rh3 Be5 Rh8 Bf6 Rh6 R5g4 Nh8 Ng6 Rf8+
N1NR2rB/pR6/5pb1/n4B1Q/rb1R1K1n/rb2PP2/2n1n1b1/q4Bbk w - - 0 1 legal: proof: d4 b5 b4 c5 h4 cxb4 a4 bxa4 h5 e5 h6 exd4 Rh2 gxh6 Rh4 h5 Rh1 h4 Kd2 Ke7 c4 Ke6 g4 Ke5 f3 Kf4 g5 Kg3 c5 h5 g6 d5 g7 a3 c6 f6 c7 d3 Ke3 a2 Nh3 b3 Nf2 b2 Qe1 d2 Bg2 d1N+ Kd4 h3 Qg1 h4 Nd2 b1N Nc4 h2 Nb2 h3 Na4 Ne7 g8R+ Ng6 Ba3 Nbc3 Qe1 Bb4 Nb2 Nc6+ Kd3 d4 Qf1 Na5 Nc4 Rh4 Qg1 Bf5+ Kd2 d3 c8B Qd4 Nb2 Ne3 Na4 Nc2 Rb1 a1B Nb6 Re4 Re8 Nh4 Rd8 Bg6 Bf5 Qe5 Rd4 Rg8 Na8 Bb2 Qe1 Rg4 Rg1 h1R Ne4+ Kh2 Bf1 Rf4 Rg3 Rg1 Rg4 Kh1 Nd6 h2 Nc8 Re4 Rg2 Re3 Rg5 Rg4 Rh5 Ba1 Bc1 Bb2 Rh8 B2a3 Rb2 Bc5 Rb7 Bab4 Qg3 Rf4 Qg4 Bb6 Qh5 Rg4 Ba3 Rge4 Kc1 d2+ Kb2 d1B Kc1 Qe8 Kd2 Qa4 Bc1 Qa1 Ba3 Kg1 Bc1 h1B Ba3 Bg2 Bc1 Rg7 Rhd8 Rg8 Ba3 Be7 Bd6 Kh1 Bf4 Bb4 Bh6 Ne1 Bg7 Bb3 Bh8 Nc2 Ne7 Bc7 Nc8 Bh2 R8d6 Rf4 R6d5 Bg1 Rd8 Re6 e3 Ra6 Kd3 Ne2 R4d6 Rc4 Rd4 Nc6 Ke4 Ra3 Re8 Na5 Rd8 Bc5 Bg7 Rca4 Bh8 Nc3+ Kf4 Bb4 Kg3 Ne2+ Kg4 Nc3 Kf4 Ne2+
1Q5R/3b2r1/5BR1/n4b1q/2B2KPP/1p1q1q1B/rb1N1b1p/bqnNk2N w - - 0 1 illegal: No proof kernel
3kq1r1/2qN2B1/2rr4/2q3q1/QqNp1pb1/PRNKR1nn/1PB3rR/2b5 w - - 0 1 illegal: No proof kernel
RN4nb/2K1B2q/4n1n1/p2br2B/1b1p3Q/3RPn1b/N1Pq2r1/bk3N1R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 f5 h4 d5 b4 a5 h5 g5 h6 f3 h7 f2 Rh6 a3 Ra6 f4 Qd3 a2 Qg6 d3 Bg2 Kd4 Rd6 f1N Ra6 d2 Rc6 d1B Qe8 g3 Bd2 f3 Rg6 g4 Bh1 f2 Rg7 g2 Be1 g3 Ra7 Nc6 Qg6 Nce7 Nd2 Kc3 Rb1 a1B Nc4+ Nd2 Ne3 f1Q Qe8 Qf7 Qd7 Ng6 Qe7 Bh3 Kc6 Qf5 Rc1 Kb2 b5 Ne4 b6 Ng5 b7 Ne6 Qh4 Bb4 b8N Qdg5 Nf1 Qd2 Kb6 d4 e3 Bf3 Ra6 Bd5 Ne2 g1N Rd1 g2 Nc1 Nf3 Na2 g1B Bg3 Qh5 Bd6 Bh2 Be7 Be5 Bg2 Ra7 Bh1 Rc7 Ra8 Rc5 Bg2 Qe2 Rd3 Qd2 Bh1 Kb1 Bg2 Nf6 Bh1 Rg8 h8R Qh7 Bg2 Nh2 Be4 Nf3 Bf5 Rg7 Bg4 Ng8 Bh5 Nh6 Rd8 Rg8 Rf8 Bh8 Rf5 Rg7 Rg5 Ng8 Rg1 Bc6 Rh1 Re5 Rh2 Bd5 Rh1 Bb3 Kb7 Bd5+ Kc8 Ngf4 Kd7 Rg2 Kc8 Ng6 Kd7 Neg5+ Kc7 Ne6+
2Qb1R1q/1nBq3n/qR1NrP2/1p1b4/6p1/1Bn1qkNn/P1RqN3/1r3K2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 Kf7 h4 Kf6 c4 Kf5 c5 g5 h5 d5 h6 b5 c6 e5 h7 g3 c7 g2 Qd2 Kg4 f5 d3 Qe3 d2+ Ke2 d1N Qd3 b3 Qc2 e3 Rh6 d4 Rh5 b2 Rh6 d3+ Ke1 e4 Rg6 d2+ Ke2 Nf6 Qc3 Na6 Rg7 Bb7 c8R Be7 Qa3 Bd5 Qd3 Nc5 Rg6 Nb7 Rc3 Ra6 Rc2 Re6 Na3 b1Q Qc3 Rf8 h8N Nh7 Nh3 Qc8 Nf4 Qb2 Qb3 Bd8 Nf7 Qh8 Qc4 Kg3 Qc5 g4 Nd6 Qc6 Bb2 Qa6 Be5 Rf7 Qc8 Rc7 Rb2 Rc1 Nac4 Rb1 Rc2 g1Q f6 Nf2 Rg8 d1N Nd2 Nh3 Rf8 Qh2+ Ke1 e2 Rc6 Qg1 Rb6 Qc5 Bg2 Qc7 Bf3 Qd7 Nf1+ Kh4 Ng3 Nc3+ Kd2 e3+ Kd3 e1Q Nfe2 Rb3 Rc1 Rb1 Rc2 Qc1 Be4 Qb2 Bg6 Kg5 Bf7 Qb4 Ng1 e2 Bg8 e1Q N1e2 Qb3 Ke3 Ng1 Bf7 Qd2+ Kf2 Kh4 Nc4 Kg5 Bc7 Kh4 Nd6 Qba3 Rc1 Nh3+ Kf1 Kg5 Bg6 Qc5 Bc2 Qcd4 Bb3 Q4e3 Nd4 Kf4 Nde2+ Kf3 Ndf5 Nd1 Nd6 Qb4 Rc4 Qbd2 Rc2 Nc3+
1Bn1N2b/2q1Qrb1/1R2p3/1r1q1PKn/8/2BP1bR1/b1B2rp1/3rNNkr w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 a4 Kd4 h4 b5 h5 g5+ Kg3 c5 f4 c3 a5 c4 d3 c2 f5 c3 h6 e6 a6 e3 h7 b3 a7 b4 Ra3 b2 Nd2 b1R Ra5 b3 Ne4 b2 Qe2 Bg7 Rh3 Ne7 Qh2 e2 Rb5 e1B+ Nf2 Bb7 Bf4 c1Q Rb6 c2 Rb5 Bf3 Be2 Bc3 Be5+ Ke3 Qg2 Qd5 Bd6 Rf8 h8B Nc8 Qh2 Nd7 Rb7 Rf7 Bf1 Nf6 Be2 Rb8 Rb4 Rb5 a8N Ra1 Qg2 b1B Ne4 Ba2 Bb8 Bd4 Nd2 Nh5+ Kh2 Rb1 Nc7 Rb2 Rg3 Bde5 Qh1 Kf2 Nf1 Qf4 Rb3 c1R Ne8 Rd1 Rb4 Bd4 Rb3 Qc7 Rb4 Re1 Bd1 Rd2 Bc2 Red1 Ne2 Ba1 Nf4 Baf6 Ng2 Ba1 Nd6 Bab2 Ne1 Bbd4 Rg1 g3+ Kh3 g4+ Kh4 g2 Kg5 g3 Qh4 Bb2 Ne8 Re2 Rh1 g1R Rh3 Rh1 Rb3 Kg1 Qb4 g2 Rg3 Bg4 Qe7 Rf2 Rb4 Bf3 Rb3 Bf8 Bc3 Bg7 Rb4 Rc5 Rb7 Rb5 Rb6 Bh8 Ba5 Bbd4 Bc3 Bdg7
2N2R2/Nnr5/B2P1P1q/1nr2qk1/3Nb2r/pK2r1b1/RpRBb2b/6Qb w - - 0 1 illegal: No proof kernel
1Bb2bn1/b1n1bqn1/P1pqNQ2/5N2/1Bk1Bp2/2r1nn1P/3R4/2Rr2RK w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 Kg2 Kc6 d4 Kb5 e4 g5 e5 f5 a3 f3+ Kf2 f4 h3 b3 d5 g3+ Ke1 g2 Kf2 c6 e6 g4 e7 g3+ Ke1 f2+ Ke2 c3 e8R b2 d6 c2 a4+ Kc4 d7 b5 a5 b4 Rh2 b3 Ra3 Na6 Ra1 Nc7 Bd2 c1B Nc3 b1N Rh1 b2 Nb5 Na3 Bb4 b1Q Qd6 Ne6 Nc7 Qh7 Nf3 g1B Nh4 g2 Nf5 Ng7 Qf6 Nb5 Ne6 Nc7 a6 Rb8 Ra2 Ba3 Rd2 Rb5 Re7 Rc5 Rf7 Qe7 d8B Qd6 Re7 Qg6 Rd7 Qf7 Kf3+ Kb3 Be2 f1N Bd3 Ne3 Be4 Rc3 Rc2 Bf2 Rg1 Kc4 Rcc1 Rh5 Nh6 Ra5 Nf5 Rd5 Be7 Rd1 Bd8 Nce8 Bc7 Be7 Bb8 Nc7 Ba5 Bc5 Bb4 Ba7 Rd8 Bh4 Rd7 Bf8 Rd8 Qe5 Rd2 Qd6 Re1 Bg5 Kf2 Bh4+ Kg1 Bg5 Kh2 g1N Kh1 Nf3 Rg1 Bh4 Qe5 Bd8 Qf6 Bde7
1K2N1k1/1Rb2nP1/6bn/1r1QrRp1/np2R1Pq/B4bq1/bbn3N1/5BB1 w - - 0 1 illegal: Other
r1k1KB2/1R2qp1b/1b1p1P1N/2n1bq1Q/4rn1B/P4N1n/B4NR1/n1bn4 w - - 0 1 legal: proof: d4 e5 g4 exd4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 f4 c5 Kf2 g5 Kg3 b5 h4 b4 e4 d6 f5 Kd7 h5 d3 a3 c2 h6 b3 e5 d2 h7 b2 Qf3 d1N Rh5 c4 Rh6 c3 Qe3 Nf6 Qe2 Qc7 Nf3 Bg7 Rh2 Re8 h8B Na6 Nbd2 b1Q Ne4 Nd5 Nf2 Nf4 Rg2 Nc5 e6+ Kd8 Bb2 Be5 Bg7 c1N Bf8 c2 e7+ Kd7 Bc3 N1b3 Be1 c1B f6 Qc2 Rb1 Na1 Rb5 Ba6 Rb7 Kc8 Qb5 Qh7 Bc4 Qf5 Qa5 Bb5 Ba2 Bd3 Qb5 Ra4 Qa5 Re4 Qb5 Rd8 e8N Bc2 Ng7 Bb1 Kh2 g3+ Kg1 g4 Kh1 Qg5 Nf5 Re8 Nh6 Qf5 Rg1 g2+ Kh2 Bc2 Kg3 Bb1 Kh4 g3 Qe2 Qe6 Kg5 Bd3 Ng8 Qf5+ Kh6 Rd8 Kg7 Re8 Rf1 g1N Nh6 Ngh3 Rg1 Bb1 Rg2 Bd3 Rh2 g2 Kg8 g1B Rg2 Qh5 Nh2 Qf5 Qh5 Kd7 Nf3 Ra8 Nh1 Kc8 Bh4 Nd7 Kg7 Bb6 Nf2 Nc5 Be7 Re3 Kf8 Re4 Ke8 Qfd7+ Kf8 Rc4 Bg3 Bh7 Bh4 Qf5 Ke8 Re4 Bf8 Qe7+
1rbnQBK1/3P1BN1/R1Nb3b/4n2B/3n3p/nr1P3k/2R2p2/1q1qnb1N w - - 0 1 illegal: Other
kN2q3/Nn1P2n1/1bK2BQq/1Br2r2/1p2q1pn/1RP2R2/4q1B1/qn2Nb2 w - - 0 1 illegal: No proof kernel
rbK2r2/rrpBPb2/2qQ2RB/1N6/1Nn2q2/1R1npR1b/B2b2P1/1b1k4 w - - 0 1 illegal: No proof kernel
NKb2q2/RpqQb2k/b2qBnRB/8/3BPq2/bR1r2r1/1pn4P/N2q4 w - - 0 1 illegal: No possible last move, all moves rejected
5R2/P1nB2QK/1q3qR1/4B1Nq/1p1r4/qBb1knPp/2br2b1/bb3R1N w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Ke6 f4 Kf5 a4 e5 g3 h5 c5 d5 c6 b5 c7 h3 a5 e3 Kf3 b3 a6 h4 a7 e2 Rh2 e1Q Qd2 b2 Bc4 b4 Ra5 d3 Ne2 d4 Rd5 Nd7 Rd6 Bg7 Re6 Qf1+ Rf2 h2 Qc2 h3 Qc3 d2 Ra6 d1Q Ra5 d3 Ba2 h1Q+ Ke3 d2 Qb3 Ne7 Ng1 Qg4 Na3 b1B Qg8 d1B Bb3 Bdc2 Ra6 e4 Bb2 Rh4 Nf3 Bb7 Rg6 Ne5 Ng5 Nf3 Nb5 Qfg1 Nc3 Nd5+ Ke2 e3 Nce4 Qhh2 Be5 Qf6 Qh8 Rd8 c8B+ Rd7 Qh6 Qhh1 Rf1 Nc7 Qh7 Bh8 Qg7 Ba8 Rf2 Qc1 Rf1 Qa3 Nf2 Qg1 Nh1 Bd5 Nf7 Ke4 f5 Rd6 Bd7 Nh2+ Ke1 e2 Kd2 Qb6 Bda4 Qe7 f6 Qee6 Bd7 Bb7+ Ke1 Ke3 Ng5 Bg2 f7 Qf6 f8R Rd2 Bf4+ Kd4 Kf2 Nf3 Bd6 Rd1 Bf4 e1B+ Ke2 Bc3 Be5+ Kc5 Ke3 Rd2 Rh6 Qge6 Rg6 Rhd4 Nf7 Qg4 Ng5 Ba1 Qh6 Qff5 Bg7 Rd5 Rd6 Qh5 Qg6 Qe6+ Kf4 Qf7+ Rf6 Kd4 Qh7 Rd6 Qg8 Kd3 Kf5 Qe7 Re6 Qg4+ Kg6 Qd8 Ref6 Ke3+ Kh6 Qe7 Rg6 R6d5 Kh7 Qee6 Be5 Qec6 Bd6 Bhc3 Qg7 R5d4 Be5 Qce6 Kh8 Qf6 Kh7 Qh5+
3n3B/pqr1pnnR/3Rb3/Qr4B1/K2b4/2Pqn1k1/NPB3b1/2Nbb2R w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Kf6 f4 d5 g5+ Kf5 g6 h5 c3 h3 Kc2 h4 g7 h2 Nf3 Kg4 f5 h3 f6 d3+ Kd2 e3+ Ke1 a3 f7 a2 Qe2 d4 Kd1 d2 Kc2 d1B+ Kd3 Rh5 Kc4 d3 Kb4 d2 Qc4+ Kg3 Ng5 e2 Qe4 e1B Ba6 Nh6 g8R Qd3 Qf5 Bg7 f8B Be6 Nf3 Nf7 Rh8 Bd4 Ne5 Nc6+ Ka3 Rb8 Bg7 Rb7 Rh7 Rc7 Bh8 Ncd8 Nc6 Rg5 Qa5 Rb5 Bc8 Bf3 Bd7 d1B Nd2 Bg2 Rb1 a1N Nb4 Nc2+ Ka4 Ne3+ Nb3 Nf1 Bg5 Ne3 Rg1 h1N Na2 h2 Bc6 Nf2 Be4 Nh3 Rh1 Nf4 Bg6 Nh5 Bf5 Qd2 Bc2 Ng7 Rc1 Qd3 Ra1 Bdg4 Rd1 B4f3 Rd2 Be2 Nbc1 Bd1 Rg1 h1Q Rf1 Qh5 Rh1 Qf3 Qb4 Qde4 R1h6 Bf6 Rd6 Bd4 Qa5 Qd3 Rh1 Qb7
3r1q1N/7k/2q2b1r/1Br1P3/pKbQrn2/qp2NR2/1NP3Rb/b3Bn1R w - - 0 1 illegal: No proof kernel
2BK2k1/Q3r3/1b2Pbr1/P2q2q1/1B1n1R2/1RnnpN2/pN3BNq/1b1n2q1 w - - 0 1 illegal: No possible last move
3Rr3/1qB2qq1/4pbQ1/n2bp3/Rrr1nPNB/Rrn5/KnP3k1/N2B4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 d5 f6 e5 fxe5 d6 cxd6 Qd2 d5 Qd1 d4 Kd2 Kf7 h4 Ke6 a4 Kf5 f4 Ke4 a5 d5 a6 g5 h5 b5 h6 g3 a7 d3 h7 e6 Ne2 Kf3 Rh3 b3 Kc3 b2 Kb3 d4 Qd2 g4 Ra6 b4 Ra4 Qf6 Qd1 d2 Ra6 d3 Qe1 d1N Rc6 d2 Na3 b1Q+ Bb2 Nc3 Nc4 d1N Na3 Be7 Ra6 Nc6 Nc1 Bb7 Rh6 g2 Ne2 g1R Ra4 g3 Nc4 g2 Ne3 Rc8 a8R Qf7 Ng4 Nf6 Nc1 Rhe8 h8B Nfe4 Bf6 Rh1 Rh2 g1Q Bh4 Bf6 Rd2 Rh3 Be2+ Kg2 Rd8 Rf3 Ra3 Rd3 R8a4 Ba8 Kc4 b3 Ba1 b2 Nb3 Rg3 Qd2 Rh3 Qd3 Na5+ Kb4 Nc5 Qg6 N5e4 Rd7 Bd5 Rd8 Ne3 Bd1 Nec4 Bg5 Rf3 Bh4 Qga7 Be2 Qbg1 Bd1 b1R Bb2 Qac7 Bc1 Qga7 Bd2 Nb2 Na1 Qg7 Be3 Qcf7 Bb6 Rc6 Bc7 Qa8 Rb3 Qb7+ Ka3 Rc4 Rb6 Nd3 Ra6 Rbb4 Ra7 Nb2 Raa8 Nb5+ Ka2 Rfb3 Ra3 Nc6 R8a4 Na5 Bb8 Qh6 Bd6 Qhg7 Bc7 Nbc3#
K3R1q1/1NB4N/1p1q1q1R/rk5b/2n3p1/rbr2B1P/1bP1QrnB/6Nb w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 f4 d5 a4 Kd7 f5 Kc6 a5 Kb5 h3 g5 a6 b3 a7 e3 Kd3 e2 f6 e1R f7 b2 Rh2 e4+ Kd2+ d3 Kc3 g3 Kd4 b6 Qd2 g2 Qf4 e3 Ra3 e2 Qf3 d2 Qe3 d1B Ra2 Ba3 f8B Nh6 Bd2 Nc6+ Kd3 d4 Ke4 d3 Nc3+ Ka6 Be7 b1B Qf2 Bb7 Bc1 d2 Qf3 Na5+ Nd5 Nc4 Bd6 Ng4 Bc7 Nge3 Bb2 Bc6 Bbe5 Qf6 Qh5 Rac8 a8N Rhf8 Rb2 Bb7 Rb5 Ba2 Rh1 Bc1 Bh2 Bb3 Rc5 Bb2 Rc6 Qf2 Rh6 Qf6 Nf3 g1Q Bg2 Rf1 Qe8 e1R Qe7 Qf2 Ng1 Bh5 Bf3 d1Q Qe8 Qg7 Qe7 Rf6 Qe8 Rc6 Nf6 Qd6 Nh7 Ra1 Qe6 Ng2 Qe5 Qdf8 Kd5 g4 Qe2 Ra3 Bce5 Ka5 Nc7 Ra8 Nb5 Ka6 Bc7 Qg3 Nd6 Rf2 Rg6 Ra7 Rh6 Ba8 Nb7 Rc5+ Ke6 Qgf6+ Kd7 Q8f7+ Kc8 Qgd6 Kb8 Rca5 Nd8 Bd5 Nb7 Qg8+ Nd8 Rb7+ Ka8 Bc6 Bb8 Re7+ Nb7 Re6 Qd3 Re3 Qe2 Qgf7 Bc7 Rc3 Be5 Q7g6 Bh2 Qg8+ Qe8 Bd5 Be2 Ba4 Nf3 Bdc6 Re1 Ne3 Ng1 Bh1 Bf3 Ng2 Re3 Bb3 Re2 Qgf7 Qe3 Qfd5 Qd2 Qdg5 Re8 Qg8 Qe2 Kb5+
1rN3N1/Qn3b1r/Rp4k1/b1rb1N1n/1r3P1p/nR3q2/q1PB2Kn/1BB5 w - - 0 1 illegal: No possible last move, all moves rejected
brN1k3/2b5/qpR1q3/1P1bQ2r/B2Rnq2/2P1R1BK/q1pr2N1/rB3n2 w - - 0 1 illegal: No proof kernel
4qq2/1kB2n2/1pRP1Nb1/2RK4/pb2Q1P1/1NrBB3/q1r1r2n/3qbbR1 w - - 0 1 illegal: No proof kernel
r3nnkB/1NRB4/Pb1q4/2np2nb/bB3Q2/3NR3/2Pp2rb/K2R1rq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 a4 d5 e4 b5 h4 f5 a5 Kf7 a6 f3 e5 f2 h5 b3 h6 b4 h7 b2 Rh2 d3 Rh1 g3 Nc3 b1Q Bg2 f1R Rh6 g4 Rh1 f4 Ra2 b3 Rh4 b2 Rh5 f3 Rh1 f2 Nb5 Bd6 Kc3 d2 Ra3 Nd7 Ra5 Nf8 Nf3 Bd7 Nc7 Nf6 Qe1 Ba4 Ne6 Ne8 Nc5 Rg8 Bh3 g2 h8B g1N Rb5 g3 Nb7 g2 Bd7 Nh3 Rc5 g1B Qe3 Rg2 e6+ Kg8 e7 Ng5 Ne1 Bdh2 Nd3 Qb8 Qf4 Qd6 Rc7 Qa1 Kd4 b1N+ Bb2 Nc3 Ba3 Qd1 Bc5 Nce4 Bb4 Nc5 Kc3 Re1 Kb2 f1B Ka2 Be2 Kb2 Bh5 Ka2 Nf6 e8R Rf1 Re1 Qg4 Ka1 Ne8 Rd1 Nce4 Re1 Bb6 Rg1 Nc5 Rd1 Re2 Rg3 Rg2 Re3 Qg3 Bb2 Qf2 Bh8 Qg1
1q1r1NK1/N5Bb/PkqpRbBr/R3bn2/1b4R1/2P3rB/4p3/1q1nr2Q w - - 0 1 illegal: No possible last move
Rb2q3/q1Nk2P1/1BbrR1B1/BKn1q3/3r2p1/Qn2pnN1/2nq1P2/1R3r2 w - - 0 1 illegal: No proof kernel
q1r1nnR1/3R1KPp/1k4Nq/rq4Bb/Q5q1/br3NpN/1R1P4/3b2bB w - - 0 1 illegal: No proof kernel
Kqbn2r1/N1bN2p1/3B1Q2/kNP3B1/q1b1r3/Rn3rP1/4rpR1/3Rbq2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 f5 b5 g3 bxa4 f6 h4 Nd2 h3 Bg2 hxg2 Nb1 exf6 Bd2 f5 Bc1 f4 Kd2 f5 Kd3 d5 c4 Kd7 h4 Kc6 e4 Kb6 b4 a5 e5 f3 b5 f2 h5 f1Q+ Qe2 f4 h6 a3 e6 a2 e7 f3 e8N f2 h7 a4 c5+ Ka5 b6 a3 b7 Qb6 Nh3 g1R Rh2 Nc6 b8B Nge7 Nc7 Nf5 Nb5 Rg8 h8R Nd8 Ba7 Bd6 Bh6 Bc7 Kc2 d3+ Kb3 d4 Kc4 d2 Kd5 d1R Qe7 d3 Qd6 d2 N1c3 Nd4 Ng5 Re1 Nge4 d1B Bb8 Re2 Rg2 Nb3 Bg5 Rf8 Qh6 Rf3 Na7 Rh1 Rb1 a1Q Qf6 a2 Ncb5 Rh4 Rg8 Bc2 Rd1 Bd3 Re8 Qc1 Rf8 a1B Rg8 Qf4 Rf8 Bce5 Bd6 Bac3 Re8 Be1 Re7 Qd2 Rd7 Qb4 Ra1+ Qa4 Ra3 Nf7 Rd8 Ba6 Rd7 Rg8 Rd8 Bc8 Rd7 Qb8 Kc6 Bc4 Rd8 Qa8+ Kc7 Qc6+ Kb8 Qb6+ Ka8 Bf4 Qd4 Be5 Nf6 Rhe4 Nd7 Bf4 Qf6 Be5 Be7 Bb8 Bd6 Bc7 Re8 Nd8 Re5 Rc3 Rd5 Rf3 Rd1 Qb8+
2q1bk2/1r3PNq/P2NQ3/R2B1np1/r3nN2/1b1r1Knp/1n1b3B/1B4Rr w - - 0 1 illegal: No proof kernel
R3qbNq/q2pr1k1/P7/nR1rr2P/Kp1n2r1/n1R2Q2/4BBN1/1b2N1n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 a4 b5 h4 f5 e4 Kf7 c4 f3 Kc2 f4 Kb3 d3 e5 d2 a5 g3 h5 g4 e6+ Kg7 a6 g2 e7 g3 e8R f2 c5 f3 c6 Bb7 c7 Nc6 c8N Nge7 Bc4 f1R Qe2 d1R Bb2+ Nd4+ Ka2 f2 Be6 b3+ Ka3 b4+ Ka4 Be4 Bc4 Rh7 Bf7 Nc6 Nd2 Rfe1 Ra3 f1Q Ndf3 Na5 Bc4 Bb1 Nh4 Qf7 Qf3 Re5 Be2 Qg6 Ba1 b2 Rc3 Qdf6 Rd8 Qe8 Ne7 Rc8 Ng8 Rc4 Ra8 Rd3 Nh3 g1Q Ng5 g2 Rh3 Qe3 Rg3 g1N Ng2 Qfd8 Rg4 Qc8 Rf4 Qb8 Rf5 Qa7 Ne4 Qh6 Nf2 Nb5 Qe3 Rec5 Bd1 Bc2+ Rb3 Kh8 Rf4 Re7 Rf5 Kg7 Be2 Qh8 Qf3 Rg4 Re5 b1N Bd4 Rd2 Nd3 N1a3 Nde1 Bb1 Bf2 Rd6 Rc3 Nd4 Ree3 Rf5 Re5 Rde6 Rec5 Rd5 Rb5 Ree5
1RbR1N1n/1qPrR3/2r5/kbb5/3qq1b1/1q1Q2NP/1p3BNp/2KB2nr w - - 0 1 illegal: No possible last move, all moves rejected
4q2k/Npb1R1n1/nqbRK3/N5Q1/Brn2r1r/6pP/N1nPRB2/b5r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 e4 Kf7 a4 g5 e5 Kg7 a5 c5 a6 c3 h3 f3 Kg3 f4+ Kf2 b3 a7 g3+ Ke1 c4 e6 b2 e7 g2 Kf2 c2 e8R g4 Ra6 g3+ Ke1 f2+ Ke2 f3+ Ke3 c3 Ke4 Bd7 Kd5 Qb6 Bd3 f1N Ne2 g1R Ra4 f2 Rd8 Ne3+ Ke5 f1N Bh7 Nh6 Re4 Nhf5 Rh2 Na6 Na3 b1R Nc4 Rb4 Bb2 c1Q Na5 c2 Nc3 Bc6 Rd6 Nc4+ Ke6 N1e3 Qh5 Qe1 Re2 c1B Qh4 Rb8 a8N Nc2 Nc7 Rd8 Ba1 Bb2 N7b5 Rd7 Bg6 Rf7 Qg5 Rh4 Na7 Kh8 Na2 Bfg7 Bh7 Bbe5 Bd4 Bf4 Bf2 Ba1 Bg6 Rf8 Be8 Bfe5 Rd3 Bc7 Rd6 Ng7+ Ke7 Bd5 Ba4 Rff4 Kd7 Nf5 Re7 Bf3 R2e5 Bc6+ Ke6 Qe2 Re4 Qh5 Re1 Qe8 Re2 Ng7+
1qq1B1N1/1p2qr2/b1Rp3r/1k1qb1Q1/1N1n2B1/1NPK2n1/1P2n1r1/1Br3R1 w - - 0 1 illegal: No proof kernel
2nk4/1p1n4/P4N1r/KR1pbRb1/2Q1Brbq/4qR1q/3PN2B/r2bBr2 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 e4 f5 h4 c5 a4 d5 e5 g5 h5 c4 a5 c2 e6 g3 e7 c3 h6 g2 h7 f3 a6 f4 Ra5 g4 Rc5 f2+ Ke2 g3 Kd3 f3 Rh2 Nd7 Qe1 Bh6 Rb5 Bg5 Ne2 g1Q Qd1 g2 Rh3 Qh2 Qe1 g1Q Bg2 f1R Qh4 f2 Bb2 c1B Be4 c2 Bf6 Bb2 Rf3 c1R Nbc3 Qh3 Be5 Ra1 Bh2 Qgg3 Kc2 Qb6 Kb3 Qe3 Kb4 Rb8 Qf4 Qgh4 Qc7 Ra8 Qc4 Rb8 Nb1 Be5 Nbc3 Nh6 Bg3 Nf7 Rf5 Rf8 h8B Nd6 Bf6 Rh8 Bh2 Rh6 Rf3 Rg1 Rf5 f1B Rf3 Bg2 Rf5 Raf1 Ka4 Bf3 Ka5 Bd4 Bfe5 Bg4 Beg3 Be5 Be1 Rh1 Nd4 Bd1 Rf3 Nf8 Nde2 Bg4 Rf5 Nc8 Rf3 Kd7 e8R Rhg1 Re6 Kd8 Ref6 Nd7 R6f5 Bb3 Nf4 Ncb6 Rf7 Rf2 Rg3 Ke8 Nce2 Rf3 Bf2 Ra1+ Kb4 Rc8 Be1 Bd1 Nh5 Rf1 Rgf3 Rcc6 R7f4 Nc8 Rf6 Kd8 R6f4 Ba4 Rf7 Rcf6 Ka5 Rf4 Rf5 Ra3 Nf6 Bd1+ Qa4 Ra1 Qa2 Ba4 Qc4 Bd1+
1bN4n/1p1b2PB/1rb2Rq1/2Bq2Rq/1qN1PB2/bkp2QN1/7r/1rn4K w - - 0 1 illegal: No possible last move, all moves rejected
R1b2b2/P1r1n3/1rp3Nr/b1qnP3/q1BR3b/3NK2n/1p2N1kB/BQ4n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 a4 Kf5 d4 Ke4 a5 b5 e3 g5 h5 f5 a6 c3 h6 f3 d5 b3 h7 c6 a7 b4 d6 c2 d7 b2 Qd2 g3+ Ke1 f2+ Ke2 b3 Bh3 f1N Bg4 f4 Ra2 g2 Ra5 f3+ Kf2 Qb6 d8B Na6 Bc7 Nc5 Be6 g4 Bc4 g3+ Ke1 f2+ Ke2 Ne6 Nh3 g1B Qe1 g2 Ra2 Ne7 Qd2 Qc5 Ba5 Ng5 Nf4 Nh3 Bb6 Bh2 Qe1 Bg3 Ra6 Bh4 Bc7 Rb8 Ra1 Rb7 Nd3 Rb6 Bd2 c1B Bc3 Bd2 Bh2 Rb7 Bf6 Rc7 Ra4 Ba5 Qb4 Rg8 h8N Rg6 Bg7 Rh6 Ng6 g1N+ Kd1 Kf3 e4 Nd5 Nc3 Ne7 Ne2 Ne3+ Kd2 b1R Ba1 f1Q e5 N3d5 Nb2 Nc3 Nd3 Kg2 Qb5 Qf3 Rb4 Qfd5 Qb7 Qb5 Ke3 Qa4 Qb5 Nf3 Rf1 Nfg1 Rf4 Qd6 Rd4 Qc5 Qb7 Rb2 Rb5 Qcb4 Rbd5 Qc5 Rd8 Ncd5+ Ke4 Be6 Ra8 Bc8 Qb4 Ra2 Qe1 b2 Qb1 Ra3 Bf4 Rb3 Bh2 Nc3+ Ke3 Rb8 Bf7 Rb6 Bc4 Ncd5+
4b3/p1q2P1N/nq1qBNb1/4pQR1/1qR4b/r1R1Br1n/K5PN/3r1b1k w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 f4 Kg6 b4 Kf5 c4 h5 Kc2 e5 Kb2 d5 c5 d3 b5 d4 b6 e3 c6 h3 b7 a3+ Kb3 e2 c7 Kg4 f5 Kg3 f6 e1Q f7 a2 Qd2 h4 Nc3 h2 Be2 h3 Nf3 Bd7 c8R Na6 b8N Nf6 Nb1 Be8 Nc3 Be7 Nc6 Ng4 Qh6 d2 Nb8 d1B+ Kb2 d3 Qh5 d2 Rc4 Qc7 Rd4 Bh4 Nc6 Rb8+ Rb4 Nf2 Rb3 Bc2 Rb4 d1B Rb5 Bg6 Bd3 Be2 Nd8 Bf1 Bf5 Qd1 Qh7 Qdd6 Rb3 Rb6 Rb1 a1R Be3 Rb5 Re1 Rd1 Ka2 Rb8 Ra3 Rb3 Ne6 Qcb6 Neg5 Qdb4 Rg1 h1Q Be6 h2 Nd5 Nh3 Qh5 Rh6 Nh7 Q4d6 Qf5 Rh5 Qd3 Rf5 Ndf6 Rf4 Qf5 Qbb4 Nd4 Rf3 Ra4 Qbb6 Rc4 Ng5 Qd3 Be2 Qd2 Rf4 Rc2 Rc1 Rc5 Nh3 Qc2 Qb4 Rgf1 Qg1 Nf3 h1Q Bd2 B2b5 Rc8 Qgb6 Re3 Rcb1 Rf2 Qc1 Qe4 Qcc4 Rc3 Rd1 Be3 Qcc6 Qc2 Bf1 Qe4 Qcb7 R8c4 Qb6c7 Rd2 Qb7b6 Rdd4 Q4b5 Qf5 Qbb4 Nfg5 Kh2 Nf3+ Kh1 Nh2 Rf3 Rg4 Qbb8 Rg3 Q8b6 Rg5 Ra3+
Nr1R3b/4b3/4RnB1/1n2n1P1/1r1P2nN/n2pbb2/3p1B1q/RnKQ2Nk w - - 0 1 illegal: No possible last move, all moves rejected
4Nnn1/n1PQR2N/3K1bBn/1nr5/5BB1/P1pRq3/2p1R1bb/1n1r1k1b w - - 0 1 illegal: No proof kernel
N1bR1bN1/PN1b1qkB/1rBp4/3P1Rbb/7r/n2K1p1n/1b4r1/Q2r3R w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 h4 b5 e4 f5 Ke2 Kf7 a4 g5 c4 d6 d4 b3 c5 g3 c6 b4 c7 g4 h5 f3+ Ke3 g2 a5 f2 h6 f4+ Ke2 f3+ Kd2 g3 e5 Na6 h7 Kg7 e6 Qe7 d5 Nh6 Ra2 Nf7 Ra3 Ng5 Rh4 Qf7 e7 Nh3 Ne2 g1B e8B g2 Nbc3 b1B Ra1 b2 Nd4 b3 Bc6 Bg6 Ne4 b1R Nf6 b2 Rh5 Nb4 a6 Nc2 a7 Na3 Bd3 f1B Nb3 Bd4 Na5 g1B Rf5 Bh5 Ng8 Bd7 Be4 Ba6 c8N Bf6 Bd3 Bgd4 Nb6 Bac8 Nb7 Bh4 Be4 Bg5+ Kd3 Rc1 Qh1 b1R Qg1 Rb8 Na8 Rb6 Qe1 Be5 Qc3 Rc2 Rh1 Rc1 Qa1 Bb2 Ne7 Rg8 h8R Rf1 Rf4 Rb4 Bh7 Rg1 Rf5 Rh4 Na5 Rb6 Nb7 Rg2 Rd1 Kh6 Rh1 Rg6 Ng8+ Kg7 Re1 Re6 Rh1 Re1 Nf6 Be7 Rd8 Bf8 Ng8 Rd1+
4rQ2/1k3K2/1qN1BRpp/4b1bn/P3bq1q/BPp2RB1/n3N2n/2rr2N1 w - - 0 1 illegal: No proof kernel
2r4B/1RQ1p3/2Knn2n/1Rqr1Bb1/1N3BbR/1qNpPbPr/1kp5/7q w - - 0 1 illegal: No proof kernel
r2R4/qp2RBb1/kp3RNP/Bq1Pnr2/5BK1/3rp3/2q1bNn1/1n1Q2b1 w - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 d5 b4 dxc4 b5 h5 b6 hxg4 Bh3 axb6 Bg2 Ra4 Bf1 Ra8 Ke2 Kd7 h4 Kc6 a4 e5 f4 g5 d4 c3 a5 Kb5 h5 c5 d5 g3 f5 g4 f6 g2 f7 c4 h6 c2 a6 e3 a7 g3 Kf3 e2 Ra4 e1N+ Ke2 c3 Qd4 e4 Ra2 e3 Ra1 Nc6 Rh3 Bg4+ Nf3 g1Q Rh2 g2 Qd1 Ne5 Rh1 Qb8 Nd2 Bg7 f8B Nf6 Ra4 Ne4 Bd6 Rf8 Rc4 Rf4 Rc7 Ka6 Re7 Rf5 Bca3 c1R Bab4 c2 Ba5 Bh5 Rh4 Qh2 Rf4 g1B+ Bg2 Qh1 Bh3 Ng2 Bg4 Qh2 Nh4 Nf3 Ng6 Ra1 Be5 c1Q Bd6 Qb2 Bh3 Rg5 Be6 Rf5 Bf7 Ra3 Bc7 Rd3 Be5 Rg5 Rf6 Rf5 Bc7 Qb5 Bf4 Nd6 Ne4 Nc4 Nf2 Na3 Be5 Nb1 Bd6 Qf4 Be5 Qfa4 Bf4 Qc7 Ng4 Rf8 Nf2 Qb8 a8R+ Qa7 Rd8 Qe4 Rdd7 Ra8 Rdd6 Qec4 Rd8 Qc2+ Bd2 Nh2+ Ng4 Nf1 Kf3 Nh2+ Kg3 Qcc4 Ba5 Qc2 Nf2 Be2 Kh3 Nf3 Kg4 Ne5+
rn2BRq1/1pP1NNqB/1b1K1P2/1N1p1r2/3n1Qb1/4rRqn/b2B3p/6k1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 g4 Kd5 a4 e5 g5 h5 c3 b3 f5 h3 f6 h4 a5 e3 Kf3 b2 a6 h2 a7 e4+ Kf4 e2 g6 e1Q g7 d3 c4+ Kd4 c5 d5 c6 h3 c7 e3 Bg2 d2 Na3 b1B Qh5 d1Q Bf3 e2 Qg4 Bc5 Qg5 Bg4 Bd2 Ne7 g8B Rh5 Bh7 Nf5 Nb5+ Kd3 Ke5 Ba2 Ke6 Bb6 Qf4 Qg3 Rb1 Qb3 Rf1 Qg8+ Ke5 e1R+ Be4+ Kc4 Nf3 Re3 Ng5 Nd4 Kd6 Qc2 Bf3 Qcg6 Nf7 Kd3 Bd1 Rf5 Ba4 Ke2 Rf3 Q6g7 Rg1 h1N Ra1 Nbc6 Rg1 Rb8 a8N Nf2 Rg2 Kf1 Rh2 Ba5 Nb6 Kg1 Nc8 Bb6 Ne7 Ra8 Na7 Nb8 Be8 Nd1 Re2 h2 Nb5 Ree5 Ree3 Nf2 Ra3 Re3 Ra4 Nd7 Ra6 Nh3 Ra5 Rd8 Ra8 Nb8+ Bd7 Na6 Rb8 Re8 Nc6 R8e5 Rf8 Re8 Ne7 Ra8 Be8 Nb8
n1BBq3/p3b2P/4RpnQ/B1NPRpNR/1q5b/r1krq3/K5b1/1n1r4 w - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e6 f5 exf5 g6 hxg6 Nf3 g5 Ng1 g4 b4 Kd7 e4 Ke6 d4 g5 Kd2 c5 Kc3 f6 Kb2 a3+ Ka2 g3 h4 g2 b5 g4 e5 Kd5 b6 g3 h5 c3 e6 c4 b7 c2 h6 c3 h7 Nd7 b8B Nb6 e7 Bb7 e8R Be7 Rf8 Qe8 Nh3 g1Q Nf2 g2 Be2 Qe1 Kb3 g1Q Bc7 a2 Bb2 c1R Qc2 Rd8 Be5 Na8 Nd2 Rd1 Nh3 Qe3 Qc1 c2+ Bc3 Bc6 Rb1 a1N+ Ka2 Nb3 Ne4 Nd2 Rb6 Nb1 Ba5 Qb4 Nc5 Rb8 Qd2 c1B Bc7 Rd8 Bf3+ Kc4 Ng5 Rd7 Qh2 Kc3 Qh6 Bd2 Bg2 Be1 Rh5 Bh4 Bd8 Bb7 Bf1 Bg2 Re6 Qf7 Ba6 Bd6 Bac7 Qb6 Re8 Ne7 Bb7 Ng6 Be7 Rf8 Rd8 Qg8 Ba6 Rf7 Bc8 Qe8 Re5 Qb8 Bb6 Rb7 Bc7 Rb3 Ba5+ Qb4 Rd7 Nc7 Re6 Na8 Bed8 Bf8 Rd5 Rd7 Rde5 Be7 Nh3 Rd6 Ng5 Rc6 Na6 Rc4 d5 Rcd4 Nc5 R4d2+ Ka1 Rd3 Ka2 Ra3#
1r1b1N1r/2BR4/1bb4b/2P2pNn/4Ppr1/1k1B3p/1b1KRq1n/1R1q1N1Q w - - 0 1 illegal: No possible last move, all moves rejected
QR2n3/1Bk2b2/1qn1n1pn/1pR1q2N/q1r1B2K/b3rP1p/RP1B4/2n4N w - - 0 1 illegal: No proof kernel
2RQ1BkN/r4n2/b2prRrp/1PpR2bn/P1BN4/nn1n3B/q7/1q1K4 w - - 0 1 illegal: No proof kernel
4n2K/1bBB3N/1Qp3Pp/1r1rP1B1/2pq1N1b/1n2b1RN/1b5k/b1Rn2q1 w - - 0 1 illegal: No proof kernel
1n4N1/r7/PkPRbpQB/RN3bnK/b3B1qN/2p1q3/1p1rbb2/6Rq w - - 0 1 illegal: No possible last move, all moves rejected
1bqBb2k/bb6/p3nb2/P1R2r1p/pn1N3R/1NP3K1/4Q1n1/rNB3Rq w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 g5 e5 gxh4 a5 f6 Bc4 fxe5 Bb3 e4 Ba4 bxa4 g4 Kf7 b4 Kg7 f4 d5 Kf2 e5 f5 d3 b5 a6 c3 h3 g5 d4 b6 h2 g6 e3+ Kg2 d2 b7 e2 Kf2 e1B+ Kf3 d3 Na3 e4+ Kg4 e3 Kf3 e2 Nb1 Bd6 Ba3 Nc6 b8B Nge7 Ba7 Bb8 Kg4 Nd4 Bd6 Bb7 Ra2 Qc8 Bg3 Nd5 Bh4 Nb4 Bd8 Bf2 Ra1 e1B Ne2 Ne6 Be3 h6 Qc2 d1N Nd4 d2 f6+ Kg8 Rg1 h1Q g7 Bh4 Qb2 Bef2 f7+ Kh7 g8N Bf6 Nb3 Kg7 Bg5 Bfa7 f8R Kh7 Bf4 Ne3+ Kg3 d1B Ne7 Ng2 Nc6 Bh5 Qe2 Be8 Ncd4 h5 Ra2 Kg7 Rd2 Rg8 Rf7+ Kh8+ Rg7 Be4 Rg4 Bb7 Rd3 Rf8 Rh4 Rf7 Re3 Re7 Re5 Rd7 Nf3 Rd1 Nfd4 Re1 Rc5 Rc1 Na3 Ra1 Nb1 Be7 Nc6 Bf7 Bfc7 Qd7 Bf4 Bbd6 Bb6 Rf8 Rg4 Bdb8 Rh4 Qc8 Ncd4 Be8 Bbc7 Rf5 Bc1 Ngf4 Bb6 Bf6 Bd8 Ng2+
2RrN1k1/b2r2PR/r7/1BNr4/2p2KP1/2n2bpn/QRpB1q1b/Br2q3 w - - 0 1 illegal: Other
N1N1rrK1/nk4P1/R1R2q1B/3P4/q2pBNb1/bp4Q1/2pbqn2/1R1b2b1 w - - 0 1 illegal: No possible last move, all moves rejected
r1n3N1/b2np3/q1R1PNBP/B2pp3/k2q3R/4qNK1/bbR1Q3/1r2bb2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 e5 c5 e6 cxd4 Qe2 f6 Qe5 fxe5 c4 b5 a4 d5 f4 g5 Kf2 g3+ Kf3 g2 h4 d3 c5 d2 a5 d1Q+ Ne2 g1B c6 g4+ Kg2 g3 c7 b3 a6 b4 f5 b2 f6 b3 a7 Qd6 h5 Nc6 Ra6 Qd4 Ra2 Ba6 c8N Bf2 f7+ Kd8 Nf4 Kc7 Rg1 Nf6 Bd2 Be1 Rh1 Bh6 f8Q Nd7 Nb6 Qa3 Qf6 Rhb8 Ba5 Kd6 Rh3 Kc5 Nd2 b1Q Rh4 b2 Bd3 Qc1 Bg6 Kb5 Nf3 b1B Rc2 Qce3 Qf7 Bg5 h6 Ba2 Nh5 Qad3 Kh3 g2 Nf6 g1B Ng8 Qa3 Qf4 Rb7 Qe4 Rbb8 Nc4 Ka4 Nd6 Rb1 Ne8 Bf1+ Kg4 Bf4 Qd3 Bgf2 Qe2 Qad3 Nef6 Qa6 Rh2 Qec3 Rh4 Bc1+ Be4 Qde3 Bd3 Bb2 Bg6 Rf8 a8R Na7 Rc8 Qcd4+ Be4 Bg1 R8c5 Ra8 Rc6 Bb4 Kg3 Nc8 Bg6 Bf2+ Kh2 Bc5 Rc7 Be1 Rc6 Beb4 Kg3 Ba7 Rc7 B4c3 Rc6 Be1+
7B/3p1nbR/2nB3r/1Ppn2p1/2k2N2/Qn1q2Kb/P1N1B1R1/rn1r1q1N w - - 0 1 illegal: No proof kernel
2Bq4/1pb2nrB/bN4Pq/3nr2p/r2q1R1R/pQ1q2K1/q2k3P/R4BN1 w - - 0 1 illegal: No proof kernel
b4R1r/1pb1n1q1/pRBP1nBN/1q5p/q5q1/1k2P1Q1/2N1r2K/b3BRq1 w - - 0 1 illegal: Other
n1qQ3R/P1n2b2/2p1Nn2/PRB1KB1B/k3Npp1/bq4r1/n2n2R1/b6r w - - 0 1 illegal: Other
N1rn2NB/pq3B1Q/1qq1R1nP/5B2/p3b3/r4Kb1/1pn4P/Nq1Rq1k1 w - - 0 1 illegal: Other
1k1r1n2/p6p/1prPK1R1/q1bN2Qb/PR1R3q/4Nr2/q3rB1n/r1BB4 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 cxb4 h5 d5 h6 dxc4 Rh3 gxh6 Rh2 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc7 Kf4 e5+ Ke3 h3 g4 h2 f4 b3 a4 b6 d4 b2 f5 c3 g5 c2 f6 Bc5 g6 Nd7 g7 Kb8 f7 Nh6 g8R Qh4 Rg6 Rd8 Nc3 b1Q f8B Qa2 Nd5 Ba6 Nf3 Be2 Ne1 Bh5 Rhg1 h1R Ng2 Rh2 Rb1 Ng4+ Ke2 e3 Kd3 e2 Ke4 e1Q+ Kf5 e4 Nge3 Qa5 Be2 Rg2 Qd2 Nh2 Bd1 Re2 Be7 Rf8+ Ke6 Rf5 Rb4 Rf3 Nf1 e3 R1g4 Ref2 Bd8 e2 Qg5 e1R+ Ne3 Rfe2 Re4 Kb7 Bc7 Rd8 Bg3 Ka8 Bf2 Kb8 Ba3 c1R Bb2 Rc3 Bc1 Qb1 Ne7 Rg1 d5 Qa2 Red4 Rc4 d6 Rcc2+ Nd5 Rc3 Ba3 Rf1 Bc2 Ra1 Bc1 Rc4 Rf4 Bd4 Rg4 Rc6 Bd1 Bc5 Rgd4 Nf8+
n2R4/4n3/1rk3B1/1R5Q/bP2p1K1/bq1bppn1/qPN4B/rNBrN2r w - - 0 1 illegal: Other
bB1N2n1/Qq2rn2/n4Pq1/2b2kb1/q1R1R2P/2B1pB2/1NKpr1pb/2R5 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 f4 Ke6 h4 a5 b4 g5 c4 d5 c5 d3 c6 d4 b5 g3 b6 g2 b7 e3+ Ke1 g4 c7 e2 Kd2 e1N Ra2 a3 Ra1 a2 Qc2 g3 Qb3+ Kf5 Qa4 e5 Kd1 e4 Kd2 e3+ Kd1 d2 Qc2+ Nd3 Qc3 a4 Qc5+ Ne5 Ba6 a3 Bc4 Rh7 Kc2 d3+ Kc3 d1Q Qa5 Bc5 Bd5 Qg4 Nd2 Qg6 Qa7 Qd7 Bb2 Re7 Nc4 Nf7 Nh3 g1B Bf3 g2 Ng5 Bh2 Ne6 Na6 b8B Bb7 c8R d2 Raf1 a1B Nd8 a2 Kc2 Qd5 Bg7 Bf6 Nb2 Bg5 Bc3 a1Q Rb1 Qd7 Rhc1 Bd5 Rc6 Qb7 Re6 Bc6 Re4 Qa3 Ra1 Qab4 Ra4 Qa3 Rac4 Qa4+ Kb1 Bd5 Bc7 Rc8 Bd6 Rc6 Bb8 Rf6 Rf1 Rb6 Bd4 Qc8 Bc3 Ba8 Rd1 Rb3 Kc2 Qb7 Ra1 Ra3+ Kd3 Ra2 Rd1 Ra1 Rg1 Re1 Rh1 Qa2 Kc2 Re2 Rc1 Qa1 Red4 Kf6+ f5 Re5 Re4 Qa4+ Kb1 Ke7 f6+ Kd7 Nc6 Ke6 Nd8+ Kf5 Nc6 Qa5 Nd8 Re7 Kc2 Qa4+
1B1bqbn1/1Nq5/2b1p2r/NN1q2p1/2p1rQ1R/3R1nK1/Pn2P3/R1bBk3 w - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Nc3 h4 Qb3 dxc6 Qa3 c5 Nb1 c4 Qg3 hxg3 f4 Kd7 h4 Ke6 d4 Kf5 h5 Ke4 d5 g5 d6 c5 h6 b5 d7 c3 h7 c2 f5 g2 Kf2 e6 f6 b3 f7 b4 Bf4 c1B Bd6 g3+ Ke1 Ke3 Nh3 g1N Be5 b2 Na3 b1Q Bg2 b3 Kf1 Kd2 Bb2 Qg6 Bd4 b2 Bc6 b1Q Kg2 Qbd3 Nb5 Na6 Be5 Nf3 Nf4 Nb4 Bb8 Qc7 d8N Ra4 Rh3 Bd7 Nd5 Ke1 Ne7 Qd5 Nb7 Nd3 Rh4 Rb4 Rd4 Nb2 Rd3 Re4 Kh3 Bh6 f8Q c4 Qf4 g2 Kg3 Be8 Bd7 g1B Nc6 Bf8 Nca5 Be3 Nc3 Ba7 Ba4 Bc6 Bd1 Bd4 Nb5 Bf6 Rd2 Bd8 Rd3 Nf6 Na7 Qe8 Nb5 Rg8 h8R Rg6 Rh7 Ng8 Rh4 Rh6
1R3Bk1/4Q3/2Bprb2/1p1b3P/qq4b1/2P1Bq2/R1n1prNR/NqnK2n1 w - - 0 1 illegal: No possible last move, all moves rejected
Rn1N4/2N1KN1k/B2p1pr1/3Q4/2PBb3/p1B2Prb/n2R1n1q/b2rn1q1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxb4 a4 bxa4 g5 e5 g6 exd4 Qd3 hxg6 Qd2 g5 Qd1 g4 Kd2 g5 Kd3 a5 Kc4 g3 Kd5 d6 e4 b3 c4 d3 h4 g4 e5 g2 h5 b2 f3 g3 e6 a3 h6 a2 e7 a4 h7 d2 Rh4 a3 Rh3 Bg7 Bd3 Nh6 Bc2 Ng4 Rh5 Rg8 h8B Nf2 Ne2 g1N Nf4 g2 Nc3 b1B Ne6 Ne2 Bf5 g1Q Bb2 Nc1 Ne4 Bc3 Rh2 Rg6 Bd4 f6 Rh8+ Kf7 e8N Qb6 Bh3 Qh2 N8c7 Bd3 Rb1 a1N Nd8+ Kg7 Ng5 Na2 Ngf7 Nc2 Rc1 Ne1 Rc2 Qa7 Bd7 Qb6 Ke6 Be4 Ke7 Ra5 Rg8+ Kh7 Bb5 Bh3 Ba6 Rag5 Rf8 Rg3 Re8 Ba5 Bbc3 Qc5 Qa1 d1R Rd2 Qg5 Qb2 Bb6 Qb5 Ba7 Qd5 Bc5 Ba5 Bb4 Rg8 Bc3 Bb4 Ba1 Bbc3 Nd7 Nc6 Qe3 Ra8 Nb8 Ncd8 Ng4 Ne5 Qeg1 Nef7 Nf2
3br1qN/1r2n2k/1nP1r1R1/n2pR3/1Npq1n2/2B2qQp/R3bPB1/B3K3 w - - 0 1 illegal: No proof kernel
3N1qn1/r2q1b2/2P3p1/qNpp1B2/PB1Nbb2/1R3nrr/5Kq1/1QR2B1k w - - 0 1 illegal: No possible last move, all moves rejected
b2n1qr1/1k6/n1pB1R1R/1BP3P1/2Np1bR1/2Npn3/K2q3q/QBqr2b1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 d5 f5 d6 fxe4 Qd3 exd6 Qe2 d5 Qd1 d4 Kd2 d5 g4 Kd7 c4 Kc6 Kc2 b5 Kb2 h5 a4 b3 f4 b4 f5 d3 f6 e3 f7 d4 c5 e2 g5 e1B a5 h3 a6 h2 a7 h4 Nh3 Nh6 Bd2 Bb7 Ra3 Bd6 f8R Bf4 Ra5 Nf7 Rb5 Na6 Nf2 h3 Re8 Rg8 Re5 Qf8 Re3 Nd8 Ng4 Bf2 Nc3 Bg1 Ka1 b2+ Ka2 b1N Be2 Na3 Qb1 Nc2 Re4 Rb8 Bf3 Ba8 Qa1 Rb7 Ne3 b3+ Kb1 b2 Nc4 Rb6 Bd1 Kb7 Ra5 Rh6 Ka2 Rh4 Be3 Rg4 Bf2 Rg2 Bg3 Rd2 Bh5 Rd1 Be8 Ne1 Bb5 b1Q+ Ka3 Qc1+ Ka2 Nc2 Ra3 Be5 Rg4 Qd2 Ra4 Bf4 Ra3 Bfe3 Bd6 Bf4 Ra4 Bge3 Rf1 h1Q Ra3 h2 Rf3 Nb8 Ra6 Bg1 Rh3 Qhg2 Rh6 h1Q Rf6 Qgh2 Rb6+ Kc8 Rc6 Na6 Rb6 Bf3 a8B Bg2 Bd5 Bf3 Bf7 Ba8 Rb7 c6 Re7 Qg3 Ree6 Kb7 Rh6 Qgh4 Ref6 Q4h2 Kb3 Qe4 Ne5 Rc1 Kb2 Rf1 Ba2 Qee1 Bb1 Qec1+ Ka2 Rd1 Nc4 Ne3+
3Q1B1b/r1n3B1/1PR2R2/q5p1/2N2B1k/ppnr3b/PKnqbN2/r3R1n1 w - - 0 1 illegal: No possible last move, all moves rejected
b1R3Q1/3q1bR1/1PNr2BN/qP1kpnp1/3q1n2/rR2p3/r2B2Nq/2b2K2 w - - 0 1 illegal: Other
R1qN3B/1b4q1/1P1PR2p/Nq2R3/3rpB2/4Qnbn/n1Brp2b/2K2n1k w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kd7 Kd2 Kc6 g4 Kd5 f4 c5 b4 a5 f5 e5 b5 h3 b6 a3 g5 a2 f6 c3+ Kc2 a4 g6 c4 g7 a3 f7 h6 Qe1 e3 Qh4 e2 Qe7 Ke4 d5 h2 Qb4 Qd7 Nh3 Kf3 Qc5 e4 Be3 Nf6 g8R Ra4 Bg5 Nc6 Qd4 Bb7 Rg1 h1N Rg4 Ng3 Rg7 Nfh5 Bh4 Nf4 R7g6 Ne5 Qd1 Bd6 f8B Qb5 Bg7 Rd8 Kc1 c2 Ng5+ Kf2 Nf7 Kg1 Bgf6 Kh1 Qd4 Nf3 Qe3 Nh3 Nd2 Bf4 Bhg5 Rd7 Rb1 a1B Bh8 a2 Re6 Bae5 Nd8 a1Q Nb3 Bb8 Rh4 Qg7 Rh5 Bfc7 Bf4 Rb4 Rhe5 Rd6 Kb2 c1N Ra1 c3+ Kc2 Rd4 Ra8 Na2 Kb1 c2+ Kb2 Nhg1 Bh3 Nf1 Bf5 Rd2 Bg6 Nh3 Bf7 Rc6 Bg8 Rc4 Bf7 Rcd4 Be8 Qd3 Na5 Qa6 Ba4 c1Q+ Kb3 Qcc4+ Ka3 Qab5 Bc2 Nb4 Kb2 Bd6 Kc1 Qc8 Rh5 Bdc7 Bg5 Bh2 Bf4 Bg3 Rhe5 Qbc4 Rf5 Bf2 Bg5 Bh2 d6 Bfg3 Rfe5 Qb5 Bf4 Na2#
1bn1r2K/Q5q1/1p1r1N1N/1qn3B1/2qRbpP1/P2Rr1b1/NpB2B2/k6q w - - 0 1 illegal: No possible last move
rNR1b2n/5n1n/P1rN1Q2/3p3b/NP1B2kB/q4pq1/n3p3/qBb1R2K w - - 0 1 illegal: No proof kernel
2nN1K1b/rrrR1R2/pN4b1/4q3/1Bn3np/5N2/PPQ1nbpq/3BB2k w - - 0 1 legal: proof: g4 d5 h4 b5 e4 dxe4 c4 bxc4 g5 f6 Qe2 fxg5 Qf3 gxh4 Qd1 h3 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 e5+ Kh5 g5 f4 c5 d4 g4 f5 h2 f6 g3 f7 e3 Qa4 Ke4 d5 e2 d6 e1B d7 a6 Nf3 Nc6 Bd2 Na5 Qb5 c3 Bh3 c2 Bg5 c1N Nh4 c4 Nf3 c3 Bg4 c2 Nd4 Bg7 f8B Ne7 Be2 Bf2 Rg1 h1N Na3 Ra7 Bh4 Nc4 Qb6 Qc7 d8N Bf5 N8c6 Nc8 Kg5 h5 Nb4 Rh7 Qh6 Bg6 Bg4 Bh8 Nf3 Ne2 Rgf1 c1R Nc6 g2 Be7 Ke3 Bb4 e4 Nd8 Qh2 Rb1 Rhd7 Qh7 Rdb7 Kh6 Kf4 Rd1 e3 Rd7 Rc2 Rf1 Rc3 Bhe7 Kg3 Bec5 Rc2 Be1 h4 Bcb4 Nc3 Nb5 e2 Nc7 Rc1 Nd5 Rc2 Bd2 e1Q Nb6 Qe5 Be1 Ne2 Bh5 Na5 Bg4 Rcc7 Bh5 Nc4 Bg4 Bf7 Qc2 Bh5 Kh7 Bg6+ Kg8 Nc1 Nc6 Qh3 Nfd4 Kh2 Na4 Bg1 Nd8 Nf2 Kf8 Kh1 Bd1 Ng4 Nb6 Ne2 Rff7 Qhh2 Nf3 Bf2
r1n4q/3Q2Bb/pb2pqn1/r3Rqn1/n4PN1/p2P4/B1k2bR1/1N1N1BK1 w - - 0 1 illegal: No possible last move, all moves rejected
2N1k3/3n3P/PB2bp1R/2bb1Qrq/B2N1p2/nRnq2p1/1r2B3/KN1r1b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 e4 d5 h4 b5 c4 g3 Kc2 d3+ Kb2 g4 a4 f6 c5 b3 c6 d2 c7 d4 h5 b4 h6 g2 h7 g3 a5 d3 e5 Nd7 a6 Rb8 e6 Ne7 Ra2 Rg8 Ra3 Rg5 Ra1 Nd5 e7 Nc3 Nf3 g1R Qe2 d1B Na3 d2 Qd3 Be2 Qd4 d1Q Be3 Rb7 Bg2 Bf1 Qe4 Rb6 Nd4 Qh5 Re1 Bb7 c8N Bd5 Rb1 Rb8 Kc1 b2+ Kc2 Rb5 Bf3 Rb7 Be2 b3+ Kd3 Rb5 Qf5 Be6 Nf3 Rb7 Bb6 Bd5 Nd4 Be6 Rc1 b1N Rh2 b2 Kc2 Qg6 Rh6 Qh5 Rd1 Rh1 Rd3 Rb8 Nc4 Na3+ Kb3 b1B Kb2 Rg1 Ka1 Ba2 Nd2 Bad5 Nb1 Na4 Ba5 Rb2 Rb3 Nc3 Bb6 Bfg2 Nb5 Rd1 Nd4 Bf1 Bc4 Qc7 Be2 Qc4 Bd8 Qd3 Bb6 Kf7 e8B+ Kg7 Qg4 Bc5 Qh3 Kf8 Qf5 Nb8 Bb5 Nd7 Ba4 Ke8
r3B1k1/1Rn4p/p2Q3P/N3B1qp/3q3N/rbN2K1R/1P1q1bB1/1nr2qb1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 e5 g6 h5 f6 h6 fxe5 Qg4 e4 Qh5 gxh5 Ke2 Kf7 g4 d5 f4 e5 c4 e3 c5 e4 f5 d3+ Ke1 d4 g5 e2 Kf2 e1B+ Kg2 e3 f6 a3 c6 e2 c7 d2 Nf3 d1Q Ng1 a2 Kf3 d3 Na3 d2 Nb1 Bf2 Rh2 B8c5 Bg2 Be6 c8N Bb3 Ne7 Qf1 Nc3 d1Q Nc6 Ne7 g6+ Kg8 g7 Nd5 Bf4 Na6 Rh3 Qd4 Na5 e1Q Be5 Qed2 Re1 a1R Re3 Kf7 g8B+ Kf8 f7 Ra3 Re4 Nac7 Re2 a6 Re4 Qa4 Rb4 Q8g5 Rb7 Qd7 Ke4 Rc8 Nf3 Bg1 Nh4 Bcf2 Nb5 Nc3+ Kf3 Nb1 Nc3 Qa4 Rb6 Qad4 Rb7 Ke7 f8Q+ Kd7 Qc5 Ke8 Qc6+ Kf8 Bf7 Ra8 Be8 Rg8 Bd7 Rg6 Qd6+ Kg8 Be8 Re6 Bf6 Re1 Be5 Rc1
3K1qbr/1NB1nbP1/n3p3/3PRBp1/1r3qQB/NR3prn/5b2/2R3bk w - - 0 1 illegal: No proof kernel
KN1brB2/1B1qrP1B/PQ1nN2n/p3k1b1/bb6/8/3nNpp1/R1q1qR2 w - - 0 1 illegal: No proof kernel
B2nq1N1/3kP2r/2R5/bn1r1p1r/bn2NR2/PQBq2K1/2R1pBp1/1r3b2 w - - 0 1 illegal: No proof kernel
1K1b4/rN2p2q/r1P2Q1R/1p2r2r/Bn1k2NR/1PR2bpN/B3q2b/n6n w - - 0 1 legal: proof: g4 c5 e4 h5 d4 hxg4 b3 cxd4 e5 a5 e6 a4 Ke2 a3 Bb2 axb2 Ke1 fxe6 Ke2 e5 Ke1 e4 Kd2 Kf7 h4 Ke6 a4 Ke5 c4 g5 a5 d5 h5 g3 a6 g2 h6 d3 Kc3 g4 Kb4 g3 Kb5 d4 f3 e3 h7 e2 a7 e1R c5 d2 c6 d3 f4+ Kd4 f5 Bh6 f6 Bg4 f7 Nf6 f8N Bf4 Qf3 d1Q Nd7 d2 Nc5 Qg8 Kb6 Ne4 Nc3 b1N Nh3 g1B Nd5 Bh2 Ne3 Na6 Bb5 Nf2 Ba4 Na3 Rc1 Qe2 Rc3 Bd6 Qf8 Bf3 Ng4 d1R Qf5 Ra1 Qe6 Rf8 a8B Nb4 Ka7 Bc7 Qf7 b6 Bb7 Nac2 Bc8 Bd8 Kb8 Ra2 Qe6 Na1 Nb7 Rf5 Qf7 Ra5 Bf5 Ra6 Bb1 Ra3 Ba2 Ra7 Bb5 R3a6 Ba4 b5 Qf5 Qec4 Qe6 Re5 Qf6 Qg6 Rf1 Qe2 Rh1 Re8 h8R Qh7 Rg8 Rf8 Rg6 Rg8 Rh6 Rh8 Rf1 Nh1 Rh4 Be4 Rf5 Bf3 Rfh5 Rg8 Rh6 Rg5 Rc2 Rf5 Rc3 Rh5
b3bR2/qr2pq2/pb1n4/1BP2R2/2NpPKn1/2q2N1r/Q1Bb2kB/R2n4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 Qd3 cxd4 Qf3 g5 Qh3 gxf4 g5 Rh7 Qg3 Rh8 Qg4 hxg4 Kf2 d5 c4 Kd7 e4 Kd6 h4 Ke5 b4 f5 g6 d3 b5 d2 g7 d1N+ Kg2 a3 h5 f3+ Kg3 f2 h6 f4+ Kh2 a6 b6 f3 Kg3 a2 h7 Bb7 Bd2 Nh6 g8B Nf7 Nh3 Nc6 Rh2 Qb8 Ng5 Qa7 Bg2 f1Q Bh1 f2 Be1 Rb8 Bb4 Ba8 b7 Nd6 Ba3 Bh6 Rh5 Kd4 Bg2 Ke3 Nd2 Ne5 Ngf3 Bg5 Rc1 a1Q Bc5+ Qd4 Ra1 Bh6 Bb4 Qc3 Rf5 Ke2 Be6 Be3 Bd7 Bb6 c5 d4 Kf4 g3 Ba4 Ng4 Bh3 g2 Bc2 g1B Nc4 Nh2 Ba3 Ng4 Bc1 Bh2+ Kg5 Be5 Bf4 Bg7 Bh2 Bh6+ Kh4 Bd2 Kg3 Rbc8 b8Q Rc7 Qg8 Rb7 Na3 Ke3 Qa2 Qfc4 Bf1 Qf7 Be2 f1B Bb5 Bd3 Nc4+ Ke2 Ne3 Bc4 Kf4 Kf2 Rb1 Bd5 Rc1 Bc6 Ra1 Rg8 h8R Be8 Bc4 Rg6 Rf8 Rh6 Be2 Rh3 Bb5 Be1 Nc4 Kf1 Rg8 Kg2 Rf8 Bd2+
nRn5/2bPn2R/2qppN2/p1Q4B/1rbNB1rN/k1nR4/4P3/2K1qqb1 w - - 0 1 illegal: No possible last move, all moves rejected
1N1b1b1R/2P2q1R/1b1n2RN/p6b/4nB1P/qrk3p1/r1p1Q2N/2K2Brn w - - 0 1 illegal: No proof kernel
1r4N1/1qpr4/2R1R1n1/q1bRP1Nb/k1P1QB2/npn2Kq1/pr2N3/5B1r w - - 0 1 illegal: No possible last move
4nRN1/1qp1bRrB/k1b1P3/npKNq3/3n4/1R1P4/1BQ1r1pb/2r2Nr1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 e4 Kc6 a4 Kb6 h4 f5 e5 g5 h5 b3 a5+ Ka6 e6 b2 d3 c3 h6 f3 Ke3 f4+ Ke4 f2 h7 g3 Qa4 g2 Qd7 f3 Kd5 c2 Qd6+ Nc6 Bd2 c1N Ra2 g4 Kc4 g3 Ra3 Nb3 Ne2 g1B Qc5 Bh2 Nf4 Nbd4 Rb3 Qg5 Bh3 f1R Bf5 f2 Nd5 g2 Bc3 Rc1 Rf1 Nf6 Nd2 Rg8 h8N b1Q Nf7 Ne8 Nh6 Rg7 Ng8 Bd7 Be4 Be7 Bh7 Nb8 Kb4 Bc6 Ba1 Qe5 Bb2 Bd8 Qc2 Be7+ Kc4 b6 Re1 Ra7 Nf1 Ra8 Re4 Ra7 Rf4 Ra8 Nd2 f1R Rf7 Rg1 Nf1 Nd7 Kc3 Nc5 Kb4 Nb7+ Kc4 Ka7 a6 Na5+ Kc3 Kb8 a7+ Kb7 Ba1 Ka6 Bb2 Nd6 Kb4 Rf8 Rf2 Rf4 Rf3 Re4 Rf7 Re2 a8R+ Kb7 Rd8 Ka6 Rff8 Ne8+ Rd6 b5 Kc5 Qa2 Rf7 Qa4 Rf8 Nf3 Rf7 Qae4 Rf8 Nd4 Rf7 Bh4 Rd8 Bf6 Rc8 Qf3 Rd8 Be7+ Rd6 Qfe4 Rf8 Bh4 Rd7 Bb7 Rdf7 Bg5 Kb4 Bf6 Nde7 Qc6 Nd5 Qb6 Qd2 Bc6 Qc2 Qb7 Kc5 Be7+
Bb4q1/r1pb2Q1/b1Pb4/N1n4p/rR6/1Kp2q2/1N1R1P1n/1qBrRN1k w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 c5 f6 Qc2 fxe5 Qd3 e4 Qc4 dxc4 Kd1 Kd7 Kc2 Kc6 g4 Kd5 d4 h5 a4 e5 a5 b5 c6 e3 g5 Ke4 a6 h3 g6 h2 d5 c3 d6 e2 a7 e1B d7 b3+ Kd1 b4 g7 b2 Kc2 b3+ Kd1 Ba6 Bc4 Nh6 g8N Bd6 Ra5 Ng4 Rc5 Bd2 Rb5 Be3 Ne2 Kf3 Ne7 Kg2 Rb6 e4 Rb7 Qg8 d8Q Nd7 Nf5 Nf8 Qg5 Ne6 Na3 b1Q Qg7 b2 Re1 h1Q Nfg3 Nh2 Rb4 Bb6 Bd3 e3 Nd4 Bbc5 Bf1+ Kg1 Nb3 Qf3+ Be2+ Kg2 Nf1+ Kh1 Nd4 Qbf5 Nb3 b1B Na5 Ba2 N3c4 Qb1 Nb2 B2c4 Rb6 Bc8 Nb3 Bd7 Na5 Ba6 Rb4 Rf8 a8R Rf4 Qg3 Ba7 Rd8 Bb8 Qg7 Re4 Rb6 Ra4 Rb4 Qa2 Kc2 Qa1 Bd1 e2 Kb3 Qb1 Bc2 Qg2 Bd3 Qf3 Rd1 e1R Re8 Bac8 Rd2 Rd1 Ba6 Bb7 Nc4 Bbc8 Bb7 Ra7 Ba8 Ba6 Ne5 Rh6 Re7 Rg6 Nc4 Rg4 Na5 Rh4 Rf7 Rd4 Rf5 Rf4 Re5 Rh4 Re1 Rc4 Rb5 Ra4 Rb4 Nc5#
1nR3RB/r1pbpNq1/4B1Pn/qk1p1r2/1B1bP1R1/6n1/4bQ2/1rb1N2K w - - 0 1 illegal: No proof kernel
1N5b/1P1n3R/b4rbR/q2q4/p2RN3/Kbp1Br2/P1Qpn1r1/3Bk1qB w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 Kd2 Ke7 Kc3 Kd6 Kb4 Kd5+ Ka4 Kc4 e4 h5 b4 d5 g4 c5 g5 a5 g6 f5 e5 d4 b5 h3 g7 h2 b6 h4 b7 h3 e6 f3 e7 f4 e8B f2 Qe1 f3 Qe5 Nc6 Qe7 Nf6 g8R Rh6 Bg2 f1B Nd2+ Kc3 Qf7 f2 Qe6 c4 Be4 Bg7 Bf5 Bh8 Ka3 a4 Qe3 Qa5 Be4 Bf5 Qe1 Nd7 Qd1 Rf6 Bd5 Be2 Bdf7 f1R Bd5 Rc8 Bef7 Bg6 Rb1 Re8 Rb2 Re4 Rg7 Rg4 Ngf3 Rg3 Rg1 h1Q Rb4 h2 Rg2 Qg1 Rh7 h1Q Qe1 Kc2 Ne5 c3 Qf2 Kd1 Qf5 Ke1 Rgh2 Qf3 Bg8 Qh5 Bg2 Rff3 Bh1 Rg2 Bb3 Qg5 Qe4 Qf5 R2h3 Qe6 R3h6 Qed5 Qf4 Bf1 Ne4 Be2 Bd1 Bf1 Be3 Be2 Qf5 d2 Ng3 Ba6 Bb3 d1B Qe4 Ncb8 Nc6 d3 Qf5 d2 Rg4 Bde2 Bd1 Bec4 Qc2 Bb3 Rc4 Rf7 Ne4 R7f6 Ne7 Nc6 Rb4 Nce5 Rd4 Nd3 Nc6 Nc1 Nb8 Ne2
3N1rNN/1pn1R1n1/1B1b1K2/1Brpp3/P1qqrnk1/q1QP1R1b/2n5/1B6 w - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 c4 gxh4 b5 a6 Qc2 axb5 Qb3 bxc4 Qd1 c3 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 a4 h5 f4 e5+ Kd5 c5 g3 e3 d3 c4 Qf3 e2 Rh2 e1N Be3 h3 Ne2 c2 Nbc3 c1Q Bg2 h4 Bb6 Qa3 Ne4 c3 Nf6 Nc2 Rf1 Nh6 Ng8 Bd6 Rf2 Na6 g4+ Kg6 g5 Kf5 Rh1 h2 g6 h3 g7 Qc7 Qe4+ Kg4 Qc4 Nf5 Rf3 Rh4 Nd4 Qcc5+ Ke4 Nc7 Nc6 Ra5 Rg1 h1Q Nd8 h2 Rc1 Qhg1 Qd4 Ne7 f5 h1R f6 Nf5 f7 Qc4 f8N Rc5 Ng6 Rh8 Rcf1 R1h4 Rc1 Na1 Rcf1 c2 R1f2 c1N Rc2 R8h7 Nh8 Ne2 Rc1 Nc2 Rcf1 Qa6 Qc3 Nf4 Bh1 R7h6 R1f2 Re6 Rh2 Rh7 Rh6 Re8 Re6 Rh4 Re7 Nfd4 Bg2 Qc4 Bh1 Kh5 Bg2 Nde6+ Kf5 Qgd4 Kf6 Kg4 Rf1 Rh3 Bc6 Re3 Rf3 Re2 Bb5 Re4 Nh6+ Kh5 g8B Ng7 Nf5 Kg4 Be6 Qcb4 Ba2 Qbb3 Bb1 Qbc4 Rf7 Bf8 Ne7 d5 Ng8 Bd6 Rf8 Kh4 Rf7 Bh3 Rd7 Kg4 Re7 Rf8+
n1n1r1k1/1pB3p1/5R2/p1qNb3/1bNr2bN/3RK3/P2PRb1q/3rQqB1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 cxb6 Ng1 b5 Ba3 b4 Bb2 Nd7 Bc1 Nb8 Ke2 Kf7 h4 a5 c4 e5 f4 g3 f5 b3 h5 e3 h6 b2 f6 e4 c5 Qc7 c6 Bg4+ Nf3 g1Q h7 g2 Rh4 Na6 Rh3 Qgh2 Rh6 Re8 Qe1 Bb4 Na3 b1R Nc4 Ne7 Bb2 Rd1 Be5 Nc8 Bf4 Qe7 c7 Qc5 Rb1 Rd8 Rb3 Rhe8 Rd3 Rd4 h8N+ Kf8 Ng6+ Kg8 Bg3 g1B+ Bf2 Ne7 c8R Nc7 Nf4 Na8 Rc7 Nc8 Nd5 Qg2 Rf7 Bh2 Re7 Be5 Rg6 Qh2 f7+ Kh8 f8B Kg8 Ra6 Qh4 Kf1 e2+ Kg1 e3 Rf6 Qh8 Nh4 Qh6 Ree6 Qf4 Bd6 Qh6 Qf1 e1B Bc7 e2 Kg2 Qh7 Bg1 B1g3 Re7 e1Q Ree6 Bf5 Kf3 Qh6 Qe2 Qf1+ Qf2 Qh5+ Ke3 Bg4 Qe1 Qh8 Rf2 Qh7 Ref6 Qh5 Re2 Qh7 Nf5 Qh2 Nh4 Bf2+
2bn4/P1Qq1PN1/6bB/r1n1p1rp/kqpB2B1/2b1n1rR/2Rr4/N3R2K w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Qg4 c3 d4 b5 a4 h5 f4 e5 Kf2 c5 a5 b3 a6 b2 d5 h3 g3 c4 f5 Kd7 d6 Kc6 f6 e3+ Kf3 e2 f7 e1N+ Kf2 c2 d7 b4 Qf5 Kb5 g4 b3 g5 h2 g6 Bb4 g7 Ng2 Nh3 Ne7 g8R Nec6 Nd2 b1B Nf4 b2 Be2 Bc3 Nb3 Qe8 d8B Nd7 Rg6 Rg8 Bb6 Nd8 Bd4 Nc5 Ne6 Qe7 Bd2 c1R Bh6 Ne3 Rg2 Rg5 Bg4 Rg1 Ng7 Qa7 Qf3 Bg6 Re1 b1Q Na1 Qd7 Qb7+ Ka4 Qc7 Qb4 Kf3 Ra7 Rc2 Rg3+ Kf2 Rb7 a7 Rb5 Rhf1 Ra5 Rg1 Rg2+ Kf3 Re2 Rg3 h1R Rh3 Rd2 Kg3 Rd1 Kf2 Rg1 Kf3 Rg3+ Kf2 Ng2 Kg1 Ne3+ Kh1 Rd2
2NBb3/p1R1R1nQ/1NP2k2/3p3K/Rq1rnb1p/3P1rB1/Bq1bqq2/5n2 w - - 0 1 illegal: No possible last move
1R1N2br/rn1Bp2R/3P1p2/q4Br1/1B1P1kr1/NpnK4/3Rbbr1/1r1Q4 w - - 0 1 illegal: Other
2n2r1r/1RrN2bk/1n1RB1n1/Kp2B3/1PQR4/1p1N2pr/1P2Nq2/n4b1n w - - 0 1 illegal: Other
1Qb2bK1/RnB2R2/1N3rR1/p2p1P2/PNn1r1Br/3pn2r/r2k4/n1N1q3 w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 Kd2 Kf7 Kc3 Kf6 Kc4 Kf5 Kd5 c5 b4 h5 f4 e5 b5 c4 g3 c3 a3 c2 b6 h3 b7 e3 Qe2 h2 Ra2 e4 Qg2 e2 Bb2 e1N Ra1 c1N Qf2 h4 Nf3 e3 Qd2 h3 Be2 Nc6 b8N Na5 Na6 Qh4 Be5 Nh6 Rf1 h1R Bc7 h2 Nb4 Ng2 Ng1 Ng4 Nc3 Nb7 Na4 Nb3 Qb2 Rh6 Nb6 Ne5 Rf3 Nc4 g4+ Kg6 g5 Kf5 g6 Qe1 g7 Rf6 Bd1 e2 g8R a6 Ra2 Na1 Rg6 d6 Rh3 Ra7 Rh7 Ra8 Rf7 Nge3+ Kc6 Ke4 f5 Qc3 Qb1 e1R Bg4 Ra7 Ne2 d5+ Bd6 Ra8 Nc1 Re2 Kc7 Qe1 Bf4 Kd4 Bd6 Kc3 Bf4 Nbd6 Kd8 Nb7+ Ke8 Ra7 Bc7 a5 a4 Rf2 Ra3+ Kd2 Rb3 Ra6 Rh7 Re6+ Kf7 Re4 Kg8 Re2 Rf7 Rg2 Na8 Rf6 Nb6 Rg3 Ra3 Rh3 Rc3 Rf1 Qb3 h1R Qb1 Rf2 Qb3 Ne5 Rc6 R1h2 Rd6 Rh4 Rdd7 N5c4 Qb2+ Nec2 Qe5 N2e3 Qe8 R2h3 Rde7 Bd7 Qb8 Bc8 Bh5 Nc5 Bd6 Kc3 Bg4 Ra2 Ra7 Nb7 Bc7 Kd2
1R1NK1n1/r1Rn1r2/6p1/q1bQ2pN/k1P2p1b/2P2n2/B4n1N/Bbb3Bn w - - 0 1 illegal: Other
rk4rN/2NR1rr1/2pBKPq1/B2Q1nb1/2R2r2/nn6/R1bPBpp1/n7 w - - 0 1 illegal: No proof kernel
k1n5/1qpRN3/4bnPb/1n3B2/4p1B1/1pBNr2R/3rbPQN/1bnnK3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kd7 a4 Kc6 g4 e5 a5 h5 a6 b5 g5 h3 g6 h4 a7 Kb7 d5 h2 d6 b3 d7 b2 Nf3 e3 Bh3 b4 Ng1 b3 Qf3+ e4 Qf6 e2 Bd2 c3 Ra3 c2 Qf5 c1N Bg5 Nf6 Bf1 h3 Nf3 Bh6 Bd2 Nc6 Ra5 Nd4 Re5 Nb5 Rg1 h1B Qg5 h2 Nc3 b1B Na2 Bg2 Rd5 h1N Qg4 Ng3 Bc3 Nf5 Nb4 Nfd6 Nh2 Bf3 Rh1 Rb8 Qg3 Ka8 Bh3 Qe7 d8N Be6 Ndc6 Rbd8 Rd4 Nc8 Nd3 Qb4 Bf5 Rd7 Qg2 Rhd8 Nf4 Rd6 Rd2 Rd3 Ne7 Re3 Rd7 Bg4 Nd3 Bh5 Kd2 e1N Bg4 Nc2 Bf5 Kb7 a8B+ Ka7 Bb7 Be2 Ba6 Ka8 Bg4 Qd6 Bf5 Qd5 Bg4 Qb7 Bf5 Nca3 Ke1 Nc4 Bg4 Nb2 Bf5 Nba7 Bc4 Nb5 Bg4 Bg8 Bce6 Nd1 Bef5 Bf7 Nf3 Be6 Rh3 Bf8 Nh2 Bh6 Rd4 Rd6 Rd5 Ra6 Rd4 Ra2 Rd7 Rd2
q2n2R1/RPp1N2P/3bB1rB/p1k1n1r1/2nqn2n/3n4/p1N1BN2/1b4QK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 Kg2 Kd6 h4 a5 b4 f5 e4 g5 d4 c3 h5 c2 b5 f3+ Kh2 a3 d5 a2 b6 f4 b7 f2 h6 f3 e5+ Kc5 d6 Bf5 d7 Bd6 h7 Ra6 Bd3 f1Q Bc4 f2 Bb3 Nc6 Qd3 Qa8 d8N Qd1 Qf1 g3+ Kg2 g4 e6 Qd4 e7 Nf6 e8B Rg8 Ba4 Ne4 Nh3 Rg5 Qg1 f1N Nf2 Nfd2 Bd7 Nc4 Be6 Bg6 Bd2 c1N Bd1 Nd3 Na3 Bf5 Be2 Rb6 Nf7 Nd8 Ne5 Rc6 Rh5 Ra6 Kh1 g2+ Kh2 Bg6 Rh6 Rb6 Nc2 g3+ Kh3 Ra6 Nc6 Rb6 Ne7 Ra6 Qc1 g1N+ Kg2 Nf3 Qg1 Nfe5 Kh1 Bf5 Rg6 Rc6 Rg8 Bg6 Rb1 g2+ Kh2 Bf5 Rb6 Bg6 Ra6 Bf5 Qf1 g1N Kh1 Ngf3 Qg1 Nh4 Ra7 Nf6 Ng6 Be7 Be1 Rg3 Bd5 Nb4 Na1 Bb1 Bd2 Ne4 Bh6 Nbd3 Nc2 Rg5 Bf7 Rf6 Be6 Bd6 Ne7 Rfg6
1R1BRn1Q/1pK4B/1n2b1Pp/p1bN3P/B5b1/2N1r3/2b2N1k/nn1rq2b w - - 0 1 legal: proof: d4 e5 f4 exd4 a4 g5 b4 gxf4 b5 c6 Nh3 cxb5 Ng1 bxa4 Be3 a3 Bd2 Nc6 Bc1 Nb8 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kf3 Ke5 h4 d5 c4 a5 g4 h6 e4 d3 c5 d4 g5 a2 c6 d2 c7 d3 h5 Nd7 g6 Nb6 Rh4 Qe8 Qe2 d1B Na3 d2 Nb5 Nf6 Nc3 Bc2 Nh3 d1B Nf2 Be6 c8N Nh7 Ne7 Rd8 Ned5 Bc5 Bd2 Nf8 Rc1 a1N Rg4 Kd4 e5 Rh7 Bh3 Re7 Rg1 Rdd7 Re1 Rd6 Kg2 f3+ Kg3 Rdd7 Bg5 Rd8 Kf4 Rd6 Ng4 f2 Qa6 f1B Qa8 Bg2 Nf2 Bg4 Qd8 Bd7 e6 Bh1 Bf1 Bc8 Bb5 Bd7 Ba4 Bc8 Nfe4 Kd3 Ke5 f4 Nf2+ Kd2 Bh4 f3 Bb3 Qa4 Re3 Qb4 Ba4 Re8 e7 Bce6 Qc8 Qb1 Rf1 Qe1 Bg5 Red8 e8B R6d7 Bf7 Re8 Bd8 Ree7 Nd3 f2 Bg8 Rd6 Bh7 Re8 Rg1 f1N Nf2 Re7 Nf6 Rd3 Nfd5 Rd7 Re4 Re3 Rg3 Rd6 Rf3 Rd7 Rf7 Rd6 Rg7 Rd7 Rg8 Rd6 Nb5 Ke2 Nbc3+ Kf3 Qa8 Kg3 Qb8 Kh2 Rh8 Rd7 Rg8 Re7 Rh8 Bd4+ Kd6 Nd2 Rg8 Re8 Kc7 Bc5 Be7 Nfd7 Nf4 Bf7 Qc8 Rd3 Nfd5 Nb1 Qd8 Rd1 Bg5 Nb8 Qf6 Re5 Qh8 N8d7 Rb8 Nf8 Bd8 Re6 Rc4 Re2 Re4 Re3 Re8 Bfe6
1N2B1Rr/1nb1nbKN/1k1B1Qb1/r2B1P1P/2np4/Rnp3r1/2q3p1/2N3b1 w - - 0 1 illegal: No proof kernel
n3b1kb/2BrQ3/4P2p/2BN1pr1/b1rR1RBP/1Nn1q1K1/5pR1/2rn2b1 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 c5 axb4 c6 g5 Nc3 g4 Nb1 dxc6 Qc2 c5 Qd3 c4 Qf3 gxf3 Kf2 c5 e4 b5 h4 f5 a4 Kf7 d4 h6 g4 c3 d5 c4 a5 c2 e5 c3 d6 b3 g5 b2 a6 b4 d7 b3 a7 Qe7 d8B Nd7 Bh3 Rh7 Bg2 Bg7 Be3 c1R Bc5 c2 Ra2 Bh8 Ba5 Ngf6 g6+ Kg8 g7 Nb6 Bab4 Bd7 Be3 Nfd5 Bd4 Be8 Nh3 Ne3 Rh2 Rc8 a8Q Rc4 Qd8 Na8 Nd2 b1B Bb6 b2 Ra4 Qe6 Nb3 Nd1+ Ke1 Qe7 B4c5 f2+ Ke2 f1R Bc7 Qg5 Qe7 Rg1 Kf3 Ba2 Bf1 b1N Rd2 Nbc3 Rd4 Rg2 Be2 Rg4 Na1 Bb3 Rb4 Bba4 Nb3 Nb2 Kf2 f3 Nf4 Rg3 Nd5 Nbd1+ Kf1 f2 Bg4 Qe3 Rf4 Rf3 Kg2 Rg3+ Kh2 Rg1 Bh3 Rg5 Bg4 Rb1 Rd4 c1B Kg2 Qd3 Kh2 Bf4+ Kg2 Bh2 Rf4 Re4 Rd4 Qe2 Kh3 Bg1 Kg3 Rc1 Qd6 Kf7 g8R Qd2 Rg6 Rg7 e6+ Kg8 Qe7 Qe2 Rd3 Rc4 Rdd4 Qe3+ Kg2 Qd2 Qd8 Rh5 Bf3 Ne4 Kh3 Qe2 Rg2 Nec3 Bg4 Rhg5 Kg3 Rd7 Qe7 Qe3+
4Bn2/Rb2n2q/rpR1n3/1Np3r1/1n1BPb2/1bR3QP/k5pb/r3KB1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 d4 Kd7 a4 Ke6 a5 Kd5 a6 g5 a7 c5 h3 f5 e3 g3 Qh5 g2 Bb2 f3 Bc1 c3 Ba6 g4 Na3 b3 Rb1 b6 Bd2 b2 Qg5 g3 Qh6 f2+ Ke2 f1N Qh4 f4 Qe7 f3+ Ke1 f2+ Kd1 c2+ Ke2 c1N+ Kd1 Nd3 Nc4 Rh5 Rh2 Bb7 Qh4 Rg5 Rc1 b1R Bc3 Ne7 Nd6 Nd2 Ne2 g1B Nb5 Kc4 d5+ Kb3 d6 f1B e4 Nb4 d7 Qc7 d8R Bh6 Ke1 Ka2 Bd4 Ra1 Rd6 Nb3 Rc6 Nd7 Rf2 g2 Ng3+ Be2 Rf7 Bh2 Nh1 Bd1 Qg3 Nf8 Rc3 Qd7 Nd6 Qf5 Bf1 Qg6 Nb5 Qh7 Be3 Nd4 Bf2 Nde6 Bd4 Rf5 Rg7 Bf4 Rf7 Rc8 a8B Rg5 Rg7 Ba6 Bb7 Ra8 Bc8 Ra7 Bd7 Bb7 Be8 Ra6 Rf7 Neg6 Rfc7 Ne7 Rd7 Bc8 Ra7 Bb7 Kf2 Ba4 Ke2 Bd1+ Ke1 Bb3+
N1q1bq2/4rB2/Qn1B4/4p2R/nN1p2P1/b1n3BN/K1Rp1Pnb/2bkr3 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 c4 Kg6 Kc2 Kf5 b4 d5 Kb2 h5 b5 a5 g3 d3 c5 e3 b6 Ke4 c6 d2 c7 e2 g4 Kd3 b7 a3+ Kb3 a4+ Ka2 h3 Nf3 h4 Ng5 h2 Qe1 Kc2 Nc3 h3 Nf3 Bd7 c8N Rh7 Nd6 Na6 b8B Nc5 Bg2 Nf6 Qg1 e1N Ndb5 Qc8 Bc7 Be8 Bd8 Nfd7 Nd6 Nb6 Bf1 Ng2 Ncb5 Kd1 Kb1 a2+ Kb2 a3+ Kc3 Nca4+ Kb3 e6 Ng5 Re7 Rb1 a1B Nde4 a2 Nf6 Bb2 Nc7 a1B Ka2 d4 Nfd5 Ba3 Nb4 B1b2 Ra1 e5 Rb1 Bh6 Ra1 Ra7 Na8 Rac7 Rb1 Rc3 Ra1 Re3 Bc4+ Re1 Bd5 Re6 Qf1 Re7 Nh7 Be3 Qa6 Bf4 Ng5 Bg3 Bf7 Bf4 Rg1 h1Q Rf1 h2 Nh3 Nh4 Rg1 Qf3 Rh1 Ng2 Rb1 Ba1 Rb3 B1b2 Rc3 Bg3 Rc2 Bf4 Rg1 h1N Rf1 Ng3 Rh1 Ne4 Rh2 Re6 Bh4 Re7 Rh1 Bh2 Bg3 Ba1 Bb2 Qf6 Bc3 Bc1 Bb2 Qd6 Ba3 Bab2 Nc6 Qh6 Bd6 Ba3 Nb4 Qf8 Nf4 Bg1 Rh5 Bh2 Nh3 Nec3+
5K1N/1R6/1Bq5/2PBq1Q1/1n1qr1nn/1NrpPRbp/RB2b2p/qn5k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 c4 Kg3 b4 a5 b5 d5 c5 h5 e3 f5 b6 f3 b7 f4 Qd2 d3 Nh3 a3 Ra2 a4 Rb2 a2 Rh2 a1Q Qe2 d4 Qe1+ f2 Ng1 h3 Rc2 h4 Rb2 a3 Rb5 d2 Be2 d1N Nc3 d3 Qf1 f3 Rb1 a2 Rb2 Bd6+ Kd5 Ra3 Nb1 Nh6 Nd2 Re8 Nb3 Na6 b8B Bg4 Bc7 Re4 Bb6 Nf5 Kc6 Qh8 Kd7 Qe5 Rb1 Bb8 Bb2 Nc3 Qc1 f1N Bd1 f2 Nf3 Qf4 Ne5 Nb4 Ke8 Be2 Kf8 Bc7 Ng6 Qe5 Nh8 Qd4 Rh1 Nh2 Rf1 Ng4 Bc2 Kh2 g3 Ngh6 g4 Bg3 g5 Ng4 g6 Kg2 g7 h2 g8R h3 Rg7 Nh4 Rb7 Qe5 Qd2 Qd4 Rbd1 Nb1 Qc3 Qe5 Rd2 Qd4 Qc4 Qe5 Qd5 Qd4 Na5 Rc3 Qg5 Qe5 Bb3 Qd4 Re1 f1Q+ Bf7 Qe5 Nb3 Qff6 Rf1 Qc6 Rf3 Kh1 Bd5 Qd4 Ba3 Qb2 Rc2 a1Q Rd2 Qc1 Ra2 Qf1 Bb2 Qe5 Rf6 Qff4 Rf5 Qd4 Rff7 Qfc7 Rf3 Qce5
r1N5/2NQqbRn/nqb1b3/P2pRqbk/7p/BB1q4/rR1P2p1/6KN w - - 0 1 illegal: No proof kernel
1bnKn1R1/NB6/3k4/pP1bNR1q/1qr4Q/p1n4P/1p1bbBnr/3N1R2 w - - 0 1 illegal: No proof kernel
2rqb3/4q3/1R2RpBn/qn1Q1K2/3PR1p1/NnrPN3/1np3q1/B2Bk1b1 w - - 0 1 illegal: Other
3k1q2/8/1rPpR1Qr/2p2bnq/K1NBpbR1/rr2P3/BNqB4/4nq1R w - - 0 1 illegal: No possible last move
knR4K/Br1b4/rnpNnB2/Q2b1R2/pR1n2q1/1PbqN3/4B1pP/2b5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 d4 Kc6 e4 Kb7 e5 a5 e6 g5 b3 f5 e7 f3 Ke3 g3 e8R g4 Kf4 a3 Ke5 f4 d5 c3 d6 a4 d7 c6 Bc4 c2 Qe1 a2 Qe3 f2 Bb5 f1B Nc3 f3 Bd2 c1B Kf5 f2 Kg6 g2 Ne4 g3 Qe2 Nf6 Re6 Rh7 Bf4 Ra6 Nh3 g1N Qd2 g2 Be3 Ne2 Nd6+ Ka8 Re4 Bg7 Qa5 Nd5 Ba7 Qh4 d8B Nb6 Nf4 Nd4 Nd5 Ne6 Ne3 Bc4 Re1 f1Q Bf6 Bd5 Rb4 Bd7 Be2 Qg4+ Kf7 Qff5 Kg8 Qd3 Rb1 a1N Rf1 Qg5 Rf5 Nc2 Rb2 Ncd4 Rd2 Qh4 Rd1 Bh8 Rdf1 Rf7 R1f3 Qhe4 Rh3 Bg7 Rh8 Qg4 Kh7 Be8 Rg8 Rb7 Rf8 Bd7 Rc8 Bh6 Kh8 Bf4 Nc2 Bfd2 Ne3 Bc3
B3q2b/2rn1r1B/q1pQ3r/2P2bk1/p1N1n1r1/R1R5/Pp2b1RN/b1K3B1 w - - 0 1 legal: proof: g4 e5 f4 exf4 b4 h5 b5 hxg4 b6 cxb6 c3 b5 Qa4 b4 Qc6 dxc6 Kd1 Ke7 e4 Kf6 h4 b5 d4 a5 c4 g5 c5 b3 d5 b2 d6 f3 d7 g3 h5 g2 h6 b4 h7 f2 Rh4 b3 Ne2 g1B Bd2 g4 Ng3 Ra7 Nc3 b1Q+ Bc1 Qd3+ Bd2 Rc7 Na4 Qe8 Rc1 Qa6 Nb2 Bg7 d8Q+ Kg6 e5 f5 e6 f4 e7 f3 Be3 Nf6 Qd6 Bf5 Rc4 Nd7 Kc1 Bh2 Bh3 f1B Bg1 f2 Rc3 Be2 Nf1 g3 Ra4 g2 Nc4 Kg5 Ra3 Be5 Nh2 a4 Bg4 Ne4 Bh3 Rf8 h8R Rf6 Rg8 Rg6 Bg4 Bh8 Bh3 Beg7 Bg4 Rh6 Bh3 Qb8 e8B Qba8 Bg6 Qe8 Bh7 f1R+ Kb2 Rf4 Kc1 Rg4 Bf2 g1R+ Bf1 R1g3 Bg1 Rf4 Bh3 Bg6 Be6 Rf7 Bf5 Rg4 Be6 Ndf6 Bc8 Nd7 Bb7 Bf5 Ba8 Qec8 Re8 Bd4 Re5 Qe8 Rd5 Bde5 Rdd3 Beg7 Rg3 Be5 Rg2 Bd4 Rc2 Ba1 Rc3 b2+
6qN/1N1b1qpR/2pBn1Bn/qq3P1K/3bN1Pn/6Q1/1R1n1p1R/1rk3r1 w - - 0 1 illegal: No proof kernel
1Q3r2/2Pp4/1bbpnpr1/7q/2BNrR1r/2kP2n1/Bb1R1qR1/B2bN1K1 w - - 0 1 legal: proof: g4 a5 b4 axb4 f4 e5 c3 exf4 Qa4 h5 Qc6 hxg4 Qd6 cxd6 Kf2 Ke7 h4 Ke6 a4 Kd5 d3 g5 c4+ Kd4 e4 b5 e5 g3+ Kg2 f3+ Kh3 b3 a5 b2 e6 g2 Kh2 g4 h5 g3+ Kh3 f2 e7 b4 e8R b3 h6 Na6 h7 Nf6 c5 Nh5 c6 Nc7 a6 Ne6 c7 Bb7 a7 Qg5 Na3 b1B Ra2 b2 Rh2 Bc2 Nf3+ Kc3 Nd4 g1R Rg2 Bd1 Nac2 b1R Ne1 Bc6 Rd2 Bg7 Rf8 Rb4 Be2 f1Q Bf3 Be5 Bd5 Qf2 Ba2 Rd8 a8B f6 Re8 Rf8 h8Q Ra4 Re7 Rde8 Bb7 Qg6 Ba6 Qh6 B6c4 Qg5 Rh2 g2 Qg8 Ng3 Bb2+ Kb4 Ba1 Qg6 Nf5 Bb2 Nd4 Kc3 Rg7 Qf7 Rg4 Qh5+ Rh4 Rf1 Qh8 g1B Rg2 Re7 Qg8 Rg7 Qh8 Rg6 Qg8 Qe3 Qh8 Rf4 Qg8 Bf2 Kh2 Re4 Qh8 Rf7 Qd8 Rf8 Qb8 Qf4 Nb3 Bb6 Nd4 Ra5 Kg1 Rag5 Rdf2 Rg4 Rhh2 Qff5 Rf4 Rh4 Rd2 Qc5 Rhg2 Qcf5 Rg4 Qf3 Rf4 Qf2+
B4N1q/RP2Nb2/2Pr4/r2p1bB1/1kp1nQ2/2qn2r1/bb5p/1B1r1KRN w - - 0 1 illegal: No proof kernel
5b1Q/1pN2R1n/1pbbpP2/B1r4P/nn5q/K1k5/1NB4B/Rnr1bR1q w - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 d5 b4 dxc4 b5 h5 b6 hxg4 Bh3 axb6 Bg2 Ra4 Bf1 Ra8 f4 Kf7 d4 Ke6 Kd2 Kd5 Kc2 c5 Kb2 g5 a4 e6 h4 g3 a5 c3+ Ka3 e3 f5 c2 a6 g2 a7 e2 h5 Kc4 d5 g4 d6 g3 d7 Nf6 Nh3 g1Q Nd2+ Kc3 Qe1 g2 Ra2 c4+ Ka4 Nh7 Ng5 Na6 Nf7 Nb4 Qd1 e1B Ka3 Qh4 d8B Bd7 f6 Rc8 a8R Rc5 Bc7 Bc6 Bd3 Qgh2 Bb8 g1N Ra1 Ne2 Rf1 Qh1 Bh2 Rg8 Nd6 Rg1 Ne8 Bd6 Nf3 Bf8 Bcf4 c1N Nc7 Nb3 Ne5 Nd2 Bc2 Bh6 Be4 Kd4 Qa4 c3 Ra2 c2 Ra6 Bf2 Bfg3 Nc3 Ra8 Nf3 Nc4 c1B+ Nb2 Bcf4 Bc2 Bd6 Raa1 Bg7 Qa5 Nba2 Rf8 Na4 Rfe1 Rf1 Rf7 Bh6 Re5 Rc1 Qa8 Bg7 Qh8 Bgf8 Bf4 Bg3 Bd2 Be1 Bb4 Nd2 Ba5 Nb4 Rf5 Kc3 Rf1 Nb1+
BR3n2/1pr1b3/p1nqQP2/2RnRnbN/kbN1q1P1/4B2b/1r4pK/2B5 w - - 0 1 illegal: No proof kernel
2n5/1pNR2qp/1r4B1/p1Q1Bn2/1b1PK2N/kn1n2P1/3R1bqr/2N2Rbb w - - 0 1 illegal: No possible last move, all moves rejected
1K1B3r/p3P1p1/Bq2p1kn/1b1Q2q1/1Rnn1bNb/N3R2r/2R1b2P/2nN4 w - - 0 1 illegal: No possible last move
Q7/1B1bB3/r1q5/3P1r2/n2q1kpb/pPb1Rp1n/qn1B1pK1/N1R2RN1 w - - 0 1 illegal: No possible last move, all moves rejected
1q2Br1r/5Q1r/qpn2p1R/2PBR2q/3bP2B/Kn2p3/1n1Np1N1/N4bk1 w - - 0 1 illegal: No proof kernel
r7/B5N1/kpRrP1Rq/2n2q2/1b1Nb1QN/qBP1p3/nppb2K1/B1r5 w - - 0 1 illegal: No proof kernel
2K2brQ/pNN2p2/1B1B1P2/4R3/1bn3b1/pPRp4/qq4qr/1kr1NB1n w - - 0 1 legal: proof: e4 h5 d4 b5 a4 bxa4 g4 hxg4 d5 c6 Ke2 cxd5 Kd2 dxe4 Ke1 e3 Ke2 g5 Kd3 e5 Kc4 Ke7 Kb5 Ke6 f4 Kf5 h4 Ke4 c4 d5 c5 a3 b3 d4 f5 g3 c6 g2 c7 g4 h5 e2 f6 e1Q h6 g3 h7 Nc6 Nh3 g1Q Ra2 g2 Qd2 Na5 Rc2 Bg4 Ka6 Ne7 c8N Qef2 Qh6 Nc4 Kb7 Nf5 Nf4 Ng3 Rc3 Qa2 Rh5 Nh1 Be3 d3 Bc5 Qdd4 Nd6+ Ke3 Bb6 e4 Nd2 Qh2 Rb5 g1R Re5 Qg2 Nf3 Rg8 Ne1 Kd2 h8B e3+ Kc7 e2 Bg7 Re8 Nb7 Kd1 Nf3 e1B Nd5 Qdf2 Qh5 Qfb2 Qh8 Re6 Kc8 Re7+ Rf5 Re2 Nc7 Rc2 Bh6 Bd2 Bg5 Kc1 Bf4 Kb1 Ne1 Rc1 Be2 Rf1 Bd6 Rf3 Bf1 Rh3 Rc2 Bb4 Rc3 Bd1 Rg5 Rh2 Re5 Bg4+
q2Q4/pp1qbbPR/2b1B2N/1n3PK1/N1r2r2/BRp2r2/1pR2n1k/4N1n1 w - - 0 1 illegal: No proof kernel
2rQ3R/4RB2/1bqnN1b1/b2pnpb1/nbP1k1pr/1K6/2Pp3N/1N1BB3 w - - 0 1 illegal: Other
1b1R3r/2B2Q1r/r4N1K/RP2P2b/ppqNr1p1/1B2p3/3b1nN1/nr3B1k w - - 0 1 illegal: No possible last move, all moves rejected
1bb4R/nqk2P2/n6N/bn1rp3/p3B1pB/R1pQr3/1B1P1n1n/1R4KN w - - 0 1 legal: proof: e4 b5 c4 d5 g4 dxc4 a4 bxa4 e5 h5 e6 hxg4 Be2 fxe6 Bd3 e5 Bf1 e4 f4 Kd7 Kf2 c5 h4 e5 b4 a5 h5 g5 b5 e3+ Kg2 a3 b6 a4 b7 g3 f5 a2 h6 g4 f6 c3 h7 e2 f7 c4 Ba3 c2 Bb4 c1N Ba5 c3 Nh3 e1N+ Kg1 g2 Nf4 Ne7 Ba6 Ncd3 Bb6 Nf2 Qf3 Qc7 Bd3 Na6 b8B Nc6 Be4 Bd6 Nh5 Qb7 Bd8 Na7 Na3 Bb4 Bh4 Ba5 Rb1 a1N Nc2 Nb3 Ng3 Nd4 Ne3 Ndb5 Bd6 Rd8 Bf8 Kc7 h8R Rd3 Nef5 Re3 Ba3 Rb8 Qe2 Ra8 Qd3 Rb8 Kh2 Ra8 Rg1 Rb8 Nh1 Nf3+ Kg3 Ra8 Nh6 Rb8 Rgd1 g1B Kg2 Nh2 Bb2 Bf5 Rbc1 Rd8 Ra1 Bc8 Rdb1 Rd5 Ra3 Nc6 Bg3 Nd1 Bf5 Re1 Ng8 Ba7 Nh6 Bb8 Bh4 Nf2 Be4 Re3 Kg1 Nca7
B3B2r/3rp1p1/1N2q2R/1b2nP1R/K1Nb1kP1/1nNnr1pp/1Qr5/2r1R3 w - - 0 1 illegal: Other
3n3r/3pRP1B/3rR1q1/3nrNn1/2rQ3p/3PBb2/N1Kb2pp/B2rN2k w - - 0 1 illegal: No proof kernel
2Q1b1Kr/p1pnPr2/1qnR4/RPB1N3/2b5/1B3Rbb/pNNpk1b1/2n5 w - - 0 1 illegal: No proof kernel
3q1NR1/1br1p1PB/r2bQNn1/1K3ppp/rB1R4/3R2b1/n1r1P3/B1k4n w - - 0 1 illegal: No proof kernel
1br2R2/pNr1RK1q/p2NPP1B/5p1B/2n1br2/n5kn/2pB1brN/4Q3 w - - 0 1 illegal: No proof kernel
rq1B1RRr/pP1QbN2/BN3k2/5nR1/2pb1p1r/n2pn2b/1KN1P3/4b3 w - - 0 1 illegal: No proof kernel
6r1/n2b2B1/1pb1R1K1/2N2P1Q/nb2p2r/1Pp5/Nbp2Nq1/RB1b1kqR w - - 0 1 legal: proof: h4 d5 e4 f5 c4 fxe4 b3 dxc4 h5 a5 h6 a4 Rh5 a3 Rh1 gxh6 Qf3 h5 Qc3 h4 Qb2 axb2 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 c5 a4 h5 g4 e5+ Kg6 b6 a5 h3 a6 e3 d3 c3 g5 h4 a7 e2 f5 e1B Na3 b1Q Rh2 c4 Re2 h2 Bg2 h1B Bd5 h3 Kf7 h2 g6 Nd7 g7 Qg5 Be4 Rh4 Bb2 Bf3 Nh3 h1B Nf2 Ne7 g8Q Bg7 Qh7 Nc5 Qh5 Na4 Re3 Rb8 a8R Qg2 Ra7 Qc1 Nb1 Bg4 Rh3 Nc6 Re7 Be6+ Kg6 Bd7 Re6 Rg8 Rh2 Ke3 d4 Ke2 d5 Kf1 d6 Na7 Rh3 Bb5 d7 Bc6 d8N Bd7 Nb7 Qe3 Nd1 Qeg1 Nc5 Bd2 Bc2 Be1 Nf2 Bd2 Na3+ Be1 Bb1 c2 Rh2 Bb4 Rh3 Q2h2 Nb5 Bhc6 Bc3 Qhg2 Rh1 e4 Be5 Bh6+ Bg7 Bc1 Nc3 Bb2 Na2 c3 Kg5 B2a3 Kf6 Bb2 Kg6 Bd1+
1b2NN2/Pk2q3/1B2b1B1/R1Rq1p2/N2r1pp1/r1qp1nq1/P2qQ1KR/n7 w - - 0 1 illegal: Other
N1qk2B1/2r3Q1/R2qb1R1/1P1qrpN1/p5NB/2r1p3/1Bp1P3/n1n1rKb1 w - - 0 1 illegal: No possible last move, all moves rejected
1bqB4/3N1Bq1/4np1k/P6r/2K2pPQ/2nR1NR1/BNp4p/r1b2brb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 h5 g4 c5 e4 b5 Ke2 h3 d4 c3 Kd3 c2 d5 h4 d6 b3 e5 b2 e6 c4+ Kc3 b4+ Kd4 c3 e7 h2 Bd2 c1B Bb5+ Nc6+ Kc4 b3 Be1 c2 Kc3 h3 Qd5 f6 Ra3 Ba6 Nd2 b1Q Ngf3 b2 Kc4 Qc8 Qg5 Kf7 d7 Rh5 Rg1 h1B Rd3 h2 Qh4 Kg6 d8N Kh6 e8B Nge7 Nb7 Nd5 Rg3 Nd8+ Nc5 Ne6 Bf7 Bd6 Bf2 Bc7 Nd7 Nc3 Bb6 Qa1 Ba5 b1R Bb6 Qa3 Ba5 Qaf8 Bb6 Qg7 a5 Bb8+ Bc7 Qch8 Bd8 Ra1 Nb3 Ra7 Nbc5 Rb7 Na4 Rb6 Nb2 Rd6 Re3 Rd1 Rd3 Re1 Qh3 Rg1 Qh4 Bb7 Ba6 Bg2 Bb5 Bf1 Ba4 Qhf8 Bb3 Bc6 Ba2 Be4 Ng5 Bh1 Nf3 Qc5+ Kb3 Qc7 Kb4 Qb7+ Kc4 Qc8+
RN1r4/6b1/pNB1Q1qP/b2qpN2/P1n2k1n/KB3p1b/p7/r2BRq1q w - - 0 1 illegal: No proof kernel
1K1R1r2/nN1Bbkr1/pb3pN1/2NbB2b/p2q3p/1PqB3Q/4P2R/n6q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 Kf3 c5 Ke4 f3 Ke5 f6+ Ke4 f2 d4 c3 g4 a6 g5 c4 g6 c2 b3 c3 g7 h3 d5 h2 d6 h4 Kd5 Nc6 d7+ Kf7 Qd3 Na7 Bh3 f1Q Nf3 Ne7+ Kd6 Rh7 Bf4 c1Q Be5 c2 Nbd2 Qg2 Rd1 h1B Ne4 Qd2 Rab1 c1B Nc5 Qc3 Ra1 Be3 g8B+ Kg7 Bc4 Nec6+ Kd5 Qb6 d8N Bg4 Ndb7 Bh5 Bd7 Nd4 Qf5 Rd8 Qh3 Be7 Bd3 Rf8 Rd2 Qh2 Rf1 Nc2 Rf2 Qg1 Rh2 Kf7 Rd1 Qbb4 Rd2 Rg7 Rd1 Bd8 Kd6 Be7+ Kc7 Na1 Rd2 Qbd4 Rd1 Bd8+ Kb8 Qg2 Ne1 Qgd5 Ng2 Bf2 Nf4 Be7+ Kc7 Qg2 Ng6 Qf1 Rd2 Bd5 Rd1 Qh1 Rd2 Nc8 Kb8 Na7+ Bc8 Qdc4 Nd7 Bb6 Ndc5 Q4d4 Bc2 Bc4 Bf5 Qg4 Rd8 Qgg1 Bd3 Qgd4 Bd7 Bd5
Rr2k3/1B1q4/p2pP3/1b4n1/1b1q1b2/4pRBP/NQ1pNR1q/1r1N1nbK w - - 0 1 illegal: No possible last move
2br2Rn/3nnNBp/1kqb2P1/4N2r/b1RnP3/2pp1Q1B/K1p3q1/1BR5 w - - 0 1 illegal: No proof kernel
b3n3/6p1/B1p2R2/1bpQ2BR/rrr2P2/kpqBNP2/n2R1b2/3qb1KN w - - 0 1 illegal: Other
b2b1kN1/3r1p1q/5Q2/N3Rr1N/qp1n1B2/p2P1Bp1/1B1q1b1P/1R3nqK w - - 0 1 illegal: No possible last move
1Q5B/qNP5/nb2PRp1/N1rk2n1/prNn4/3B4/pB4bp/n1Kbq1R1 w - - 0 1 illegal: No proof kernel
n3R2n/Nrp1B1rp/P3PN1b/pb1NQ3/BqRB2q1/1p6/k1q2K2/bb6 w - - 0 1 illegal: No proof kernel
r2K4/1Pb1Bbn1/k2N1Q2/rN2qp2/2BPp2q/2RNR2p/b1p2n2/3Br2r w - - 0 1 illegal: No proof kernel
3N1Br1/Np2bP2/1PK3R1/1p2Q1p1/2n3r1/nb1R1p1b/1n1b1BqR/2kq1B2 w - - 0 1 illegal: Other
NnN2n2/n2p4/1NBK3b/1nPn1k2/n1p1r2p/1b2p1B1/P1rRB3/QR1q4 w - - 0 1 illegal: No proof kernel
8/b3NBPn/rn1bN1N1/2pP1R2/bqR1b2r/2pk1rQ1/2p1pB2/KB3r2 w - - 0 1 illegal: No proof kernel
R2N1Bq1/RR1P2Q1/bn5P/br2n1b1/4pp2/nn3k2/p1r2p1K/BB2b2N w - - 0 1 illegal: No proof kernel
2b2NNb/1Pb2bR1/B1nrq2p/RRpQP3/1B4p1/K3p2n/3r2r1/3N1k1r w - - 0 1 illegal: No proof kernel
1Rrq1K2/r7/3N1Np1/pRB1b1Pn/1p5p/1q2n1pP/1Qbk1b1B/q5RB w - - 0 1 illegal: No possible last move, all moves rejected
4n1Rb/2BNK2N/BP1nB3/2prb1pb/1pRp2NP/2q1rp1k/2Q4q/6n1 w - - 0 1 illegal: No proof kernel
1B6/1r3p1R/rBNpRBq1/NkP5/1q3P1Q/2p3nK/4n1pp/rb1N2bn w - - 0 1 illegal: No proof kernel
3q2B1/1Rq1p1R1/1nbqprpQ/n1k1b3/1N3p2/2KBp3/1PN3Pr/4NR1r w - - 0 1 illegal: No possible last move
2r4Q/1Ppp1pb1/1B6/1k1b1N2/2Rq1p1n/1Pq1rB1q/1nRp3K/b1BNR3 w - - 0 1 illegal: Other
6rk/1p4q1/1R1bPpp1/BRp1Qb2/q1P1rB1n/K3N1N1/1n2N1p1/3n1Bb1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 d4 Qc2 exf6 Nh3 f5 Qc3 dxc3 Ng1 f4 Kd1 c5 Kc2 f3 Kb3 c2 a4 g3 e4 f2 h4 g6 d4 g2 h5 Nc6 e5 Nh6 d5 Nf5 d6 Qe7 h6 Nh4 a5 Rg8 h7 Bf5 Bf4 c1B h8Q Be3 a6 f6 d7+ Kf7 d8B Qd7 a7 Bd6 Ba5 Rae8 Qh5 Kg7 a8N Qf7 Ka4 b3 Nd2 b2 Nb6 b1Q Nd5 Qc2+ Ka3 Nb4 Rb1 Nd3 Ne4 Nb2 Ng3 Qd7 Qg5 Kh8 N1e2 Qg7 Rh3 Nd3 Rb6 Nb2 Nh5 Bd4 Rhb3 Re6 Nhg3 Re7 Nc1 Ree8 R3b5 Re6 Bd3 f1N Nce2 Bg1 Ne3 Ree8 Nd5 Ne3 e6 Ned1 Ne3 Rd8 Qg4 Bc7 Qf3 Rd4 Qd5 Re4 Qe5 Bb8 Nc1 Bc7 Bf1 Bd6 Nce2 Qa4#
rB1Rq1k1/1nbRB3/b4Pp1/2n1p1p1/2P3Qp/3n1N1N/pNBn1K2/n2r4 w - - 0 1 illegal: No proof kernel
1Nk2r2/1bq2nK1/RB3np1/pr1Br3/2pbpQ1b/1R1P2N1/p2PN3/1B3r2 w - - 0 1 illegal: Other
n1n1QNK1/2R3R1/k3prn1/Np1pR3/rBB1qn2/b1pP2P1/1p2bN2/b7 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 b5 e6 Ra3 c5 Rc3 c6 Rc2 Bd3 fxe6 Bc4 e5 Bf1 e4 Bc4 Nxc6 Bf1 Nb8 Ke2 c5 Ke3 d5 Kf4 Kd7 Ke5 Kc6 f4 Kb6 a4 h5 d3 e3 g3 e2 a5+ Ka6 f5 e1B f6 h3 f7 h2 Qe2 b3 Ba3 h4 Bb4 c4 Bc5 h3 Ra4 Rh4 Nf3 Qe8 Qg2 Rf2 Be2 Bg4 Bb4 Bc3+ Nd4 Ba1 Nd2 b2 N4b3 c3 Bd1 Rf6 Ne4 Be2 Re1 h1N Nf2 h2 Qe4 e6 Qg6 Ne7 Bc2 Nc8 Ra2 Be7 f8N Qd7 Qe8 Bc5 Bb1 Qh7 Ra4 Rg4 Ba2 Qh4 Nd2 Rd4 Bc4 Qg4 Nb3 Qf3 Ne4 Nf2 Ra2 Nh3 Nf2 h1N Ra4 Ka7 a6 Nf4 Na5 Kb6 a7 Na6 a8R Nc7 Rb8+ Ka6 Rb7 Na8 Rc7 Qg2 Nd1 Nf2 Rg7 N2h3 Nf2 Rh6 Ra2 Ng6+ Kf6 Rg4 Kf7 Qe4 Kg8 Nhf4 Nc6+ Kb6 Raa7 Bd6 Rac7 Ka6 Ba5 Ba3 Bb4 Rh5 Na5 Rf5 Rh1 Rf7 Rh5 Rf6 Re5 Ng2 Bd6 Qf3 Ba2 Ra4 Bc4 N2f4 Bb4 Qe4
Rr2N2R/4K1n1/r2PB1pb/1p1pR2q/1prb1B2/1bk1Np2/B2n1b1P/5Q2 w - - 0 1 illegal: No proof kernel
3rq2B/2P3n1/3p3b/2QB1pn1/bRK1RN2/1pP5/rpbk1pB1/Nn1N3b w - - 0 1 illegal: Other
1r1q4/Nq1n2n1/1b1NpRp1/k1p2b2/1pB1BQ1R/K2nn2R/2P1rPBp/8 w - - 0 1 illegal: No possible last move, all moves rejected
3BB2N/4q3/1nRPpqnK/k6r/p3R1N1/pp1p1qN1/PqR2Q2/1r4bb w - - 0 1 illegal: No proof kernel
2RNN3/p2b4/2P1r1p1/B6P/n1R3R1/1b1b1pnK/p1qb1rpB/k1q2Q1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 Kg2 Kd6 b4 Ke5 h4 f5 c4 d5 e4 f3+ Kh2 f4 b5 g6 c5 d3 b6 Kd4 b7 a3 h5 a2 c6 f2 e5 g3+ Kg2 d2 e6 Nf6 e7 Nbd7 b8B Nb6 e8R Bd7 Re3 Bh6 Bd6 Na4 Be7 Re8 Nc3 Ne4 Bb4 Re6 Nh3 Qg5 Ba5 Rf8 Rg1 Rf7 Qe1 d1B Bc4 Rff6 Qf1 Bb3 Be2 Rf5 Bf3 Rf8 Rd3+ Kc4 Bd2 d4 Nb5 Rff6 Re3+ d3 Nd6+ Kd4 Bdb4 d2 Ne8 d1Q Rc1 Qc2 Bd6 Qgc5 Ng5 Qa3 Rb1 Qac1 Kh3 Rf5 Bh1 g2 Nf7 Ng3 Nd8 Rff6 Re5 Rf7 Rb5 Rff6 Rb4+ Kc3 Ra1 Kb2 Bb8 f3 Rg4 Re2 Bbc7 Bd2 Rb1+ Ka3 Rb2 Rfe6 Bf4 Bc4 Rb8 Bb3 Ra8 Kb2 Rc8 Ka1 Bb8 Nf5 Bh2 Ng3 Qd1 f1B Qe1 R2e5 Qd1 Be2 Re1 Bd3 Ree4 Rc5 Rc4 Rce5 Qe1 Re2 Qf1 Rf2
1R2n2r/7B/4p1P1/p3p2p/r2PqNQR/1p2NRpn/2n1KB1k/Nq4bb w - - 0 1 illegal: No proof kernel
RN1rnQ2/pR2pbpn/p3N2r/1q1q2bP/3N1p2/2p1P3/2n2R1K/Bk2B3 w - - 0 1 illegal: Other
1r2N1b1/KpPn1RBp/1Q2pBk1/3R2p1/2P4b/1Br2nq1/1p1rNp2/4rN2 w - - 0 1 illegal: Other
1NQ3B1/1b5P/2B5/bKpbkqP1/R7/1R3p1B/1n2p1Q1/rqn2b1N w - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 a6 axb5 axb5 c6 b4 c4 g5 c7 d6 c5 Ra4 c6 Ra3 Qc2 Ra8 Qc5 dxc5 e4 h6 d4 Ra7 g4 Ra6 d5 h5 Bf4 h4 Bg3 hxg3 f4 gxf4 d6 Ra2 Ne2 Rd2 Ng1 Rd5 exd5 Ba6 Bh3 Bb7 Bf1 Bc8 Ke2 e5 Kd3 f5 Kc4 Kf7 h4 Kf6 d7 e4 g5+ Ke5 d6 g2 h5 b3 h6 b2 h7 e3 Na3 b1B Rh3 e2 Rh4 f3 Nc2 f2 Rh3 f4 Rb3 Nh6 Kb5 Bg7 Nd4 Nf7 Nh3 g1Q Bg2 f1B Ra4 Ba2 Nf2 Na6 Nh1 Bb7 c8B Nb4 c7 Qf6 d8Q Qf5 d7 Nd3 Bc6 Nc1 Qg8 Bf6 d8Q f3 Be6 Be7 Qd7 Bd8 c8B Ba5 Qf8 Rg8 Qh6 Rg6 Qh3 Rf6 Qg2 Rh6 Rb2 Bd5 Rb3 Rh4 Qe8 Re4 B8d7 Re3 Qd8 Rd3 Qc8 Rd1 Nc2 Re1 Nb4 Rd1 Na6 Re1 Rf4 Rd1 Nb8 Nd6+ Ka4 Re1 Bg8 Nc4 Kb5 Nb2 Rh4 Na2 Bde6 Ra1 Ra4 Nc1 Bed7 Qe3 Bde6 Qee4 Bed7 Qb1 Bde6 Qfe4 Bh3 Qf5
qrRR3b/1qp1Kq1k/1B5P/1bQ1Q3/3p1q1B/3P1N2/np1bN3/4R3 w - - 0 1 legal: proof: a4 b5 g4 e5 c4 a5 e3 h5 c5 hxg4 axb5 e4 b4 Na6 bxa6 Rb8 Bc4 axb4 Be2 Rb6 f3 exf3 cxb6 fxe2 Kf2 Rh4 Ra3 Rh6 Ra1 Rh8 Kg3 e1B+ Kf4 f5 Ke5 Kf7 h4 Kg6 d3 d5 a7 b3 a8Q b2 e4 d4 h5+ Kh7 b7 g5 b8B g3 h6 g2 Qf3 g4 Qa2 f4 Rh2 g3 Qe2 f3 Nc3 f2 Qd5 f1Q Qc5 Ne7 Rh1 Nd5 Nf3 g1Q Ba7 g2 Bg5 Qe3 Bb6 g1Q Bh4 Bd7 Ra8 Bd2 Rc8 Bb5 Ke6 Nb4 e5 Qf4 Qe3 Qg7 Ne2 Qfg2 Rf1 Be7 Re1 Bf6 Qe4+ Q7g6 Qed5 Qgf5+ Kf7 Qh1 e6 Na2 e7 Rg8 e8R Bh8+ Bf6 Qg2 Qe5 Qd5+ Ke7 Qa8 Red8 Rf8 Nfg1 Qgb7 Bh4 Qg6 Nf3 Rg8 Re8 Qgf7+ Kd8 Qg4 Rb8 Qff5 Ke7 Qgf4 Rf8 Rg6 Rg8 Rd6 Rbe8 Rd8 Rgf8 Rb8 Rc8 Qg6 Rfd8 Qgf7#
2NRn3/N1Bb3k/2q1B3/2bRP1b1/2qr1bNK/nqr5/1Q1P1nq1/6Q1 w - - 0 1 legal: proof: g4 a5 a4 d5 c4 g5 h4 gxh4 cxd5 b5 b4 axb4 f4 e6 f5 exf5 axb5 fxg4 Ra6 g3 Ra7 Be7 Ra1 Bf8 e4 c5 d6 h5 e5 f5 d7+ Kf7 b6 Kg7 b7 b3 Ra2 h3 Rb2 c4 Qg4+ Qg5 d8N h2 Bg2 c3 Bc6 c2 Bd7 g2 Kf2 h4 Qd1 f4 Nc6 f3 Be8 h3 Bg6 Na6 b8Q Nb4 Qf1 Bd7 Qa7 Rc8 Qe2 Rh4 Qc7 Nf6 Na7 Ne8 Ra2 b2 Nb5 Rd4 Bf7 Kh7 Qb8 Rc3 Qe1 Bh6 N1a3 b1Q Nd6 Qb3 Be6 Qg7 Bb2 c1B Nc8 Nc2 Nb5 Na3 Nba7 Qf6 Kg3 f2+ Qe3 f1Q Nf3 Qfc4 Qg1 Bf4+ Kg4 Qg7+ Kh4 Qg6 Qd1 g1B Ba1 Bge3 Qg1 Qg2 Rc2 Rcd3 Bc3 Bb2 Ba5 Rc3 Bc7 Bh6+ Bg4 Bef4 Be6 Ba1 Ne1 Bb2 Nd3 Qgc6 Nf2 Bc1 Qf1 Qg2 Rg1 h1N Ng4 Nf2 Rh1 h2 Qg1 Nb5 Qb6 Ba3 Ra2 Baf8 Ra5 Na3 Rd5 Bc5 Qb8 Qc2 Qb2 Q2b3 Qe1 Ne4 Qg3 Nf2 Ra1 h1Q+ Qh2 Qc1 Qg1 Nb1 Ra4 Na3 Rb4 Qcc2 Rb8 Qg6 Ne7 Qgc2 Rd8 Qce4 Nec8 Qg6 Bf7 Qc6 Be6 Bhg5+
Q3rq2/Q2R1P1B/Rrq2N2/R1qrN2b/r4B2/2n2P2/1K3br1/3k1bb1 w - - 0 1 legal: proof: e4 g5 h4 gxh4 b4 a5 d4 f5 a4 fxe4 f3 b5 axb5 axb4 d5 Nc6 d6 Nd4 f4 Nf3+ gxf3 cxd6 Qd3 d5 Qd1 d4 Kd2 Kf7 c4 Kg6 Kc2 Kf5 b6 e5 b7 h5 b8R d5 c5 h3 c6 e3 c7 d3+ Kb3 e4 Qc2 d2 Na3 d1B Bc4 d4 Rb6 e2 Rh2 e1Q Ba6 d3 Rd2 e3 Ne2 h4 Nc4 h2 Re6 h1Q Ra3 h3 Ra1 h2 Ra2 Qhg1 Nc3 h1R Rb2 e2 Rh6 Ne7 Ra2 Rh2 Rh4 Nd5 Kb2 b3 Kb1 b2 Ne5 Rg2 Nd7 Qc5 Bb5 Ra4 Nb6 Be7 Na8 Re8 Rh6 Bf6 Rh7 Bd4 Rd7 Bg1 Nb6 Qeh4 Bc4 e1B Ne4 Be2 Nf6 Bef2 Qc3 Qh8 Qa5 Qh6 Qa7 Bf1 Re2 d2 Re6 d1R Bd3+ Re4 Nc4 Nc3+ Kc2 b1R Rea6 Rb6 R2a5 Qe7 Ne5 Qef8 Be3 Rd2+ Kc1 Qg6 Bb1 Rd5 Kc2 Ra4 Bc1 Bb7 c8Q Bc6 Qca8 Bcb5 Ng8 Qgc6 Kb2+ Ke6 Bh7 Bbd3+ Rb5 Bg6 Nf6 Kf5 Rb7 Ke6 f5+ Kd6 Bf4 Bf7 Nfd7 Bh5 f6 Ke6 f7 Kd6 Ng6+ Ke6 Nf6 Kf5 Bg3 Kg5 Rd7 Kf5 Bd6 Kg5 Ne5 Kf4 Kc1 Ke3 Rba5 Ke2 Bb8 Nb5+ Kb2 Kd1 Nc4 Rg6 Bf4 Rg2 Ne5 Nc3+
6b1/1nn1rRqr/Q1q3pB/2n4K/Nk1N1R1R/1rb5/2BP2PQ/r1r5 w - - 0 1 illegal: No possible last move
N3KR1r/2Pr4/1QQ3b1/1bq1k2P/2pn4/1B1Q3N/3br2b/qn2R1Bn w - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 h5 g4 hxg4 c4 dxc4 Qb3 c5 bxc5 a5 Qb4 axb4 Be2 Rxa4 Bf1 Ra8 Ke2 Kd7 Ke3 g5 Ke4 e5 Kd5 b3 h4 e4 f4 g3 d4 g4 f6 g2 f7 b2 f5 g3 f6 e3 h5 b4 Bd3 e2 Be3 e1B Nc3 b1B Nh3 g1R Bc2 g2 Nb5 b3 Nc7 b2 Bb3 Ra7 Na8 Bd6 f8Q Nh6 f7 Nf5 Qh6 Bd2 f8Q Bh2 Qff6 Ng3 Qb6 Re1 Bg1 Qf6 c6+ Ke7 Kc5 Ke6 d5+ Ke5 d6 Rd7 c7 Re2 Qg6 Bd3 Rf1 b1N Qc6 Qg7 Rf8 Ba6 Qh6 Bg6 Qb6 Re7 d7 Bb5 d8Q Nc6 Qd3 Nd4 Qc6 Rd7 Kb6 Qe7 Kb7 Qc5 Kc8 Rg7 Kd8 Re7 Be3 Reh7 Re1 g1Q Bf2 Rf7 Ke8 Nh1 Be3 Qf1 Bg1 Qf6 Qd7 Qa6 Qc6 Qa1 Qhe3+ Be4 Qh6 Rd7 Qb6 Bh7 Qhc6 Bg6+
RRBr2bQ/b1k3BN/5nb1/2Pr1NQb/1r4nK/1r1p3P/5Q2/2q2b2 w - - 0 1 legal: proof: f4 h5 b4 c5 e4 b5 a4 e5 g4 hxg4 d4 cxd4 axb5 a5 Bd2 exf4 Bc1 f5 exf5 axb4 Kf2 g5 c4 d5 f6 Kd7 b6 d3 b7 d2 f7 f3 Kg3 f2 h3 b3 Ra5 b2 Ra2 d4 Ra7 Rh4 Ra1 Nc6 b8Q Nf6 Qf4 Qc7 Ra3 Bc5 f8Q Ne5 Ne2 Ba7 Nbc3 b1B Qh8 Bg6 Ra1 d3 Qc2 d1B Bg2 f1B Qg8 Rb8 Bd2 Rb3 Qc1 Kd6 Qg7 Be6 Nd5 Bg8 Bc3 Qc5 Nd4 Qa3 Qc2 Qc1 Qcf2 Rh8 Ne7 Kc7 c5 Bde2 Bb7 Rh5 Bc8 Rh4 Kh2 g3+ Kg1 g2 Kh2 g1R Nf3 g4 Ng5 Rg3 Nh7 Re3 Qh8 g3+ Kg1 g2 Kh2 g1R Nf5 Rhg4 Qg5 Rgb4 Ra6 Bg4 Rb6 Ree4 Rb8 B4h5 Ra8 Rgg4 Rb8 Rh4 Kg3 Red4 Ba1 Rhf4 Bb2 Neg4 Kh4 Rd5 Rh2 Nd7 Bg7 Rfe4 Rg2 Re8 Rg3 Rd8 Re3 Bb6 Re6 Ba7 Ra6 Ndf6 Ra2 Bb6 Raa8 Ba7
1nKR1b2/1r1r2n1/1pp1Qb1R/1B1B1NnQ/6b1/5R2/1PN2q1P/1r1b3k w - - 0 1 legal: proof: g4 d5 d4 h5 a4 hxg4 e4 a5 Bd2 f5 Qf3 e5 Bb4 axb4 Qa3 bxa3 exf5 exd4 c4 Qh4 cxd5 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 f4 g5 f6 g3 f7 d3 d6 d2 f5 d1B f6 a2 a5 g4 d7 g2 Ke6 g3 a6 Ne7 a7 Nf5 Na3 Rh7 Nf3+ Kh3 Bb5 g1N Nd4 Kg2 Nac2 Nh3 Rf1 b6 Rc1 a1R Rf3 Be2 Re1 Bd1 Re4 Kg1 Rh4 g2 Rh5 Kh1 Rh6 Ne3 Nf5 g1B Rg6 Rb1 Rh6 Be7 f8Q Ng5+ Ke5 Bf2 f7 Bh4 Qh8 Qf8 d8R Ba3 Kf6 Qc5 f8Q Rd7 Qf7 Bb4 Nd6 Nf5 Qe6 Ng7 Nf5 Qf2 Qhe8 Bf8 Qh5 Na6 Ke5 Rb8 a8B Rb7 Kf6 Nb8 Ke5 Ra7 Be4 c6 Bd5 Re7 Kd6 Rab7 Rd7 Nh7 Rd8 Bf6 Ncd4 Bd7 Nc2 Ng5 Qe1+ Qf1 Nfd4 Bh3 Nf5 Bg4 Qe6 Qf2 Qh3 Nd7 Qh5 Rb8 Kc7 Rb7+ Kc8 Nb8 Nce3 Rf7 Nc2 Rfd7
1B3b2/r2R2rB/k4Nb1/2r2qB1/Pr1pQpr1/2n1q3/2N3Pb/2R1Q2K w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Nd2 d5 Nb1 d4 hxg5 d5 e4 d3 c3 Nc6 Ne2 bxc3 Ng1 d4 Rh4 Nb4 Rh1 Nd5 exd5 Qf6 Qh5 Qb6 Qd1 Qd8 Kf2 Kd7 a4 Kc7 d6+ Kb6 d7 f5 g6 h5 g7 d2 Ra3 c2 Rah3 h4 Rd3 f3 Rh3 Ne7 g8Q Nd5 Nc3 Ra7 Qf7 Rh7 Qh5 Qg5 d8B+ Ka6 Be7 b5 Bc5 b4 Rh1 h3 Rh2 b3 Be7 b2 Na2 b1R Qg4 Rg7 Qe1 d1R Bd6 Rb4 Bb8 Nc3 Ne2 Qe3+ Kg3 Be6 Nf4 Bf7 Nh5 Bg6 Nf6 f2+ Qf3 Rd2 Rh1 Re2 Rd1 h2 Bd2 c1B Kh3 Qe8 Bg5 Bf4 Rc1 Qe4 Qg4 Qd3+ Qf3 Rc2 Be2 Bg3 Qe4 f1Q Bg4 f4 Be6 Qd2 Bg8 Qfd3 Bh7 Q2e3 Qf1 Ne2 Qe1 Rc8 Rc7 Nc3 Rd7 Qb5 Nc1 Qd5 Nb3 Rc5 Na1 Qe5 Nc2 Qd5 Rf1 h1R+ Kg4 Bh2 Rg1 Qc1 Kf3 Qf5 Kf2 Bg3+ Kf1 Rh4 Rh1 Rg4 Kg1 Bf2+ Kh2 Qe3 Rg1 Bg3+ Kh1 Qe5 Qa1 Bh2 Rc1 Ne2 Qc3 Qf5 Qe1 Nc3
Q2bK3/B1rb2Q1/p4qNP/NRnp1bBP/1n2RB2/8/n1q2k2/3b2n1 w - - 0 1 legal: proof: g4 b5 h4 c5 c4 e5 cxb5 c4 f4 exf4 g5 c3 h5 a6 Bh3 Nh6 Bf5 Ng8 Bg6 hxg6 a3 Rh6 gxh6 Bxa3 d4 Bf8 d5 Qa5 d6 Bxd6 Ra2 Ke7 Qc2 Nc6 Qd2 Nf6 Qd1 Bb7 Nd2 Rh8 Nc4 Ng8 Qd3 Bc8 Na3 Ke8 Ra1 Nb8 Nb1 Qd8 Qd1 Bf8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 e4 d5+ Kf3 f5 b4 c2 b6 g5 b7 g4+ Ke2 g5 Kd3 g3 b5 g4 b6 g2 Ra2 g3 Qe2 f3 Qf2 f4 Ra5 Rh7 Nd2 Bf5 Rh4 Rc7 Rh2 Ne7 Rb5 Nec6 Nh3 g1N Qg2 f2 Nb3 f3 Nf4 Be7 Na5 Nd7 b8B f1B+ Kc3 f2 b7 Qf8 Rh4 Nc5 Ba7 Be2 b8B f1B Bd2 c1N Ng6+ Ke6 e5 Qf6 Rf4 Bd8 Re4 Nb4 Kd4 Bd1 Bg5 Bd3 Qb2 g2 Qc3 Bfg4 Qb2 Kf5 Qa1 Qc6 e6 Nca2 e7 Bh3 e8Q Qf6+ Re5+ Kg4 Qg8 Qf3 Re4+ Kg3 Ke5 Bd7 Kd6 Kf2 Qag7 Qe2 Re3 B3f5 Re4 Qc2 Q8h8 Nh3 Qhg8 g1Q Qe8 Bde6 Qc6 Qf1 Qa8 Re7 Bc7 Ng1 Bcb8 Rb7 Bc7 Bd7 Bcb8 Bc7+ Ke7 Bb6 Kf8 Bd8 Bbf4 Rc7 Kf7 Qe1 Kf8 Qec3 Kf7 Bde6+ Kf8 Qf6+ Ke8 Bd7+
1n6/k1b2Ppq/npB1B3/1n1bK3/Pr2N1Q1/4qp2/2RRnr1Q/1N4B1 w - - 0 1 legal: proof: d4 d5 b4 a5 g4 axb4 c4 h5 gxh5 e5 cxd5 c5 Qc2 cxd4 Qb3 Ra3 Qd1 Ra8 a4 f6 e4 Qb6 f4 Qd8 Qg4 Nd7 f5 Nb8 Qf4 Bc5 Ra2 Be7 Re2 exf4 e5 Bd6 e6 Bf8 Re5 fxe5 Kd2 b6 Kd3 b3 Ke4 b2 h4 d3 e7 Kd7 e8B+ Kc7 f6 Kb7 h6 d2 h7 d1N h5 Ne7 d6 Nec6 h6 Nc3+ Kd3 Ka7 d7 Bd6 Bh3 Bb7 Rh2 Na6 Rc2 Ncb8 Ne2 e4+ Kd4 e3 Ng3 e2 Be3 e1Q Ne4 Bc7 Be6 Bd5 Bg1 f3 f7 Qdh4 d8R Ne2+ Ke3 Qh5 Bc6 Re8 h8Q Qg6 Na3 b1N h7 Nbc3 Nb1 Nb5 Qf8 Qf5 h8Q Qh7 Qd6 Re7 Qg3 Rd7 Qg4 Rd6 Bed7 Rf6 Be6 Rf4 Nf2 Rb4 Ne4 Nd7 Kd3 Rc8 Ke3 Ndb8 Rd6 Ng3+ Kf4 Qe3+ Ke5 Ne2 Qg8 Qg6 Qh7 Rh8 Qh1 Rh2 Qhg2 Qh7 Q2g3 Bd8 Q3f4 Rf2 Qh2 Ba2 Rd1 Bd5 Rdd2 Bc7+
2b5/4pr1q/1Kp2P2/1qQ1pq2/1QrPNBk1/2B3r1/1b2R1Rn/1N2bQ2 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 b5 c4 d5 a4 dxc4 e5 f6 a6 fxe5 a7 Bd7 a5 Bc8 a6 Nc6 Bd3 Na5 Be4 Nb7 axb7 Bh3 Bf5 Bg4 Bc8 Bxc8 Ke2 Kf7 Ke3 Kf6 b8B Kg5 g4 h5 d4 b4 f3 b3 Ra2 b2 Ne2 c3 Nd2 b1Q Rc2 h3 Re1 h4 Ra2 c2 Ke4 h2 Ng3 h1Q Re2 h3 Qf1 Qe8 Kd5 h2 Kc5 Nh6 f4+ Kh4 f5 Rg8 g5 Ng4 f6 Bh6 g6 Qa4 g7 c6 Bc7 Rf8 g8Q Rf7 Nb3 Bd2 Ba5 Be1 Bf4 c1B Kb6 Qf5 Nd2 Bb2 Nb1 Qhe4 Bc3 h1R Qd8 Nh2 Qd6 Kg4 Qb4 Rg1 Qc5 Qd3 Ne4 Qh3 Qb4 Qhh7 Qc5 Rg3 Rg2 Bc1 Rae2 Bb2 Qb4 Bb7 Qc5 Rb8 a8Q Bc8+ Qb7 Ra8 Qb5 Ra5 Qb4 Rc5 Qa7 Rc4 Qaa5 Qg8 Qab5 Qgh7 Q5c5 Qb5+
3qq2k/q3p1Np/4b1Pn/b5pQ/2bRN2n/2PN1K1b/2RQ1B2/3r2B1 w - - 0 1 legal: proof: d4 b5 e4 c5 b4 cxd4 a4 f5 axb5 fxe4 b6 a6 b7 Ra7 b5 Ra8 h4 g5 h5 Ra7 b6 Ra8 Bb5 axb5 Nc3 Ra7 Nb1 Ra3 g4 Qc7 Kf1 Rh3 Be3 Qg3 Bc1 Qg2+ Ke1 Rf3 Qe2 Rf6 Qd1 Rg6 hxg6 Qxg4 Qf3 Qg3 Qd1 Qg2 Ke2 d5 Bf4 e3 Nh3 b4 Rh2 b3 Ra7 d3+ Ke1 d2+ Ke2 b2 Rh1 d4 Bh2 Nh6 Nf4 Nc6 b8N Bg7 b7 O-O Nd7 Kh8 b8B Ne5 Rc7 Qc6 Nh5 Nf3 Ne5 Qe8 Nd3 Be6 Nc3 b1B Bg1 Bba2 Ba7 Nh4 f4 Bac4 f5 Be5 Rc6 Bc7 f6 Ba5 f7 Rg8 f8Q Bh3 Qc1 d1B+ Ke1 e2 Kf2 Bce6 Ne4 Bc4 c3 Bdb3 Qf3 Ba2 Kg3 e1Q+ Bf2 Qd1 Rd6 Qda4 Qd2 Bce6 Qfd1 Bac4 Ng7 Rf8 Bg1 Rf1 Qh5 Rd1 Rh2 Qa1 Qe3 Qa2 Rc2 Qa3 Qd2 Qa1 Ne1 d3 Baf2 Qaa4 Rd5 Qad7 Rd4 Qa7 Qf4 d2 Nd3 Re1 Qe3 d1Q Qd2 Qa1 Qc1 Rd1 Qd2 Qaa4 Qf4 Qd8 Qd2 N4f5+ Kf3 Qae8 Ke2 Nh4 Ke3 N4f5+ Kf3 Nh4+
b1K1q3/Pp3BRq/q2pR2q/5R1Q/3kr1N1/1p1N4/rb3P1Q/rq4B1 w - - 0 1 illegal: Other
Kr2B3/2BP4/1BpbNq2/nb3Q1n/1NRq1Rpb/4k1Pp/4p3/3bQ3 w - - 0 1 legal: proof: h4 b5 c4 f5 a4 Bb7 axb5 Bc8 e4 fxe4 c5 Nh6 c6 dxc6 Qc2 Ng8 Qa4 Bg4 Qd1 Bc8 b4 cxb5 Ra2 a5 Ba3 axb4 Ra1 g5 Bb2 g4 Bc1 Ra6 Ke2 Rg6 Ke1 Rg5 hxg5 Ba6 Rh6 Bb7 Rh1 Bc8 Ke2 Kf7 Ke3 Ke6 d4 Kf5 f4 e5 d5 h5 d6 b3 g6 b4 g7 b2 Nc3 b1Q Qe1 h4 Na2 b3 Nh3 b2 Bb5 Nc6 Rf1 Bd7 Nb4 Nf6 g8Q Rh7 Ra4 Qa1 Qf7 b1B Ng5 h3 Ne6 Na5 Bb2 Qe7 Bd4 Bc2 Bb6 Bd1 Rf2 Qb2 Rc2 Qd8 Rc4 Bc6 Qd7 Nh5 Qc8 Be7 g3 Bh4 Qd7 Qf6 Qf7 Rh8 Qd7 Rb8 Qc8 Rb7 Qf8 Bd5 Be8 c6 d7 Qa1 Kd2 e3+ Kd3 e2 Ke3 e4 Bc7 Qb1 Qc5 Qf7 Kd4 e3 Qf8 Qa2 Kc5 Qf6 Bb6 Qd2 Bc7 Ra7 Kb6 Qd4+ Qc5 Ke4 f5 Rb7+ Ka6 Rb6+ Ka7 Rb7+ Ka8 Kf3 Qb5 Be4 Bb6 Bd3 Qc5 Qg7 f6 Qe7 f7 Qef6 Rc3 Bb5 f8B Ke4 Bd6 Kf3 Qg1 e1B Rc4 e2 Bdc7 Ke4 Qf1 Ke3 Qcf5 Bd2 Qh1 Bc1 Qe1 Ba3 Nd3 Bd6 Rab4 Qc5 Rf4 Qcd4 Rc4 Qf7 Nb4 Qg6 Na6 Qf6 Nb4 Rb8+
2Qb2K1/n5nq/1qn1B3/1Br5/5q1k/6NP/rRn1bPQb/1NBR2rn w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 c5 d4 cxd4 Kd2 f5 Ke1 b5 axb5 fxe4 Bh6 axb4 Bd2 Rh4 Bc1 Rh8 Kd2 Kf7 c4 Kg6 b6 Kh5 c5 d5 h3 g5 c6 e5 b7 e3+ Kd3 e2 c7 e1R Rh2 e4+ Kd2 e3+ Kd3 b3 Qe2 b2 Ra7 Kh4 Ra4 g3 Nc3 b1Q+ Qc2 g4 Ne4 e2 Ra1 g2 Ra5 g3 Ra3 Be7 Bb2 Nh6 Ra5 Nc6 b8Q Nf5 Ra1 Ba6+ Qb5 Rh5 c8B Qb6 Ra3 Bd8 Ra2 Ng7 Kd2 d3 Kc3 d2 Bd7 d1N+ Kd3 d4 Kc4 d3 Nd2 Rc5+ Kb3 Nc3 Nc4 d2 Rh1 d1Q Nd2 Qdc1 Be6 Rd1 Qg6 e1N Ne2 g1B Qf5 g2 Ng3 Qd3 Nb1 Qf4 Bc1 Nc2 Rb2 Bh2 Qe4 g1N Qg2 Re1 Qb4 Qde4 Bb5 Qh7 Qc4 Nge2 Rg1 Ne4 Rh1 Rg1 Qc3 Na7 Qc4 Rh5 Qc8 Ned4+ Kc4 Rg5 Bd5 Ndc6 Be6 Rg6 Kd5 Rh6 Ba4 Be2 Bb5 Rh5+ Bf5 Ne8 Ke6 Ng7+ Kf7 Rg5 Nh5 Ng3 Kf8 Qg6 Kg8 Qh6 Be6 Rc5 Bb3 Rf1 Rg1 Nh1 Be6 Qg6 Ng3 Qh5 Be3 Rc1 Rd1 Qhh6 Rd6 Rg1 Bc1 Qh5 Rd1 Qhh6 Bf7 Qh7+ Kf8 N2d4 Qd7 Nc8 Qe6 Ra5 Qd7 N8a7 Qc8 Qh5 Kg8 Nc2 Bd5 Ra2 Be6 Qh7+
5r2/1qq1Rr1Q/P4kBN/3b3R/5Pnb/2K2nQb/1BN2rR1/r2q1nr1 w - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 h4 g5 b4 axb4 Bd2 gxh4 Bc1 d5 cxd5 c5 Qc2 cxd4 Qa4+ Kf7 Qd1 Ke8 Kd2 Kf7 f4 b5 a4 e5 g4 h5 g5 h3 d6 b3 d7 h2 a5 h4 a6 d3 Ba3 e3+ Kc3 h3 Ne2 b4+ Kb2 e4 Qd2 Nf6 Rg1 h1N Qc1 d2 Qc5 h2 Qd6 Nc6 Qd4 Rh7 Nc1 e2 Qd3 e1R Bh3 e3 Ne2 Ng3 Qf5 h1B Qg4 Rf1 Nd4 e2 Nc2 e1R Ne3 Rf2 Nf1 Ne5 Nh2 Bd5 Rg2 Qc7 d8R Nf3 Re8 Be7 g6+ Kg7 Rh8 Rg1 Qg5 Rb8 Bf5 Nf1 Qg3 d1R+ Bc2 Bh3 Ng4 Rf8 Ra2 Rh5 Ra1 Rf5 Rh5 Bd8 Nh6 Ng4 Ra2 R5f7 Ra1 Bg5 Ra2 Kf6 g7 Bh4 g8Q Re1 Qh7 Rc1 Ka1 Rd1 Bg6 Re1 Rc2 Rd1 Rc4 b2+ Ka2 Rc1 Kb3 Rd1 Nc3 Re1 Ne2 Ra1 Kc2 b3+ Kc3 b1Q Nd4 b2 Nc2 Qd1 Rc6+ Qd6 Rc7 b1Q Re7 Qb7 Bb2 Qdc7+
2k1b1Q1/2n5/R1rb3B/K1P1qb2/2BQ2bb/qPR1r1N1/n6b/1B1b2Nq w - - 0 1 legal: proof: d4 c5 Bd2 cxd4 Qc1 e5 Qd1 b5 Bg5 b4 Bc1 b3 axb3 Bc5 Bd2 Ba3 Bc1 Bf8 f4 exf4 Nf3 a5 Ng1 a4 g4 h5 Qd2 hxg4 Qd3 a3 Qd1 axb2 Kd2 d5 c4 Kd7 e4 g5 h4 f5 e5 d3 Kc3 g3 h5 f3 c5 g4 Kb4 d2 h6 g2 h7 f2 Nf3 g1B Nh4 f4 Rh3 f3 Rh1 d4 Be2 f1Q Qc2 d1Q Qg6 f2 Qd3 g3 Nd2 b1B Ne4 g2 Qb5+ Nc6+ Kc4 d3 Bh5 d2+ Be2 Qe7 Qa4 Bh2 Kb5 g1B Ng3 Nf6 Qc4 Nd5 Bd3 Ra6 Nf3 Ncb4 Nf5 Rc6 Ka5 Nc7 Ka4 Qg2 Ra3 Na2 Qg8 Qf6 Bc4 Bd6 Be2 Qc2 Bc4 Bg3 Rh3 d1B Be3 B1h2 Ng1 Qc1 Bg5 Qe7 Be3 Qe8 e6+ Kd8 Bf4 Qh1 e7+ Kd7 Bd2 Qh5 e8B+ Kd8 Nh6 Bcg4 Nf5 Kc8 Bf4 Qg5 Be3 Qf6 Bg5 Qe5 Bg6+ Ne8 Kb5 Bbc2 Ra6 Qa3 Qf7 Rf8 Qg8 Bh4 Rc3 Rf7 Ng3 Rf3 Bh6 Re3 Qd5 Be4 Qd4 Bec2 h8Q Bd3 Bh7 Bg6 Qg8 f1B Ra5 Bfd3 Ra6 B6h5 Be4 B3c2 Bed5 Bcg6 Be4 B6f5 Bb1 Qc1 Bf8 Nc7+ Ka5 Be8 Bh6 Qa3#
K1r1NRQ1/n3r3/1qkN2n1/4P3/2n1r1b1/QRrBqPb1/qB1r1B2/4q3 w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 a4 gxh4 g5 c5 g6 b5 axb5 c4 Qd3 cxd3 Rh3 fxg6 Rh2 g5 Rh1 g4 Kd2 h5 e4 d5 c4 Kd7 b4 a5 f3 a4 c5 g3 b6 h3 b7 h4 b5 h2 b6 h3 Ra3 g2 Ra1 a3 Ne2 g1Q Ng3 a2 Bg2 Ra4 Nc3 Qe3+ Kd1 d2 Kc2 d1N Kb3 d3 Rg1 h1Q Nb1 d4 Nf5 h2 Bf1 d2+ Bd3 Rh7 Ng7 Ne7 Ne8 Ng6 Bb2 Kc6 Na3 Bg4 Nb5 Re7 Rb1 a1Q Nbd6 Qg2 Re1 h1R e5 Rhh7 Rh1 Bh6 Rh4 Ra3+ Kb4 Rc3 Rh5 Qf1 Rf5 Bf4 Rf7 Qa2 Rf8 Qf7 Ka5 Bg3 Nf5 Qfe1 Nfd6 Kd7 Kb5 Nc6 Ka6 Na7 b8B Qa2+ Kb7 Rhg7 Ka8 Kc6 b7 Qb6 Bc7 Rh7 b8Q Rhf7 Bc4 d3 Bd8 Rc7 Bh4 Rf4 Qc8 Re4 Qa6 Re7 Qa3 Rc7 Ba1 Nb2 Ba6 Nc4 Rb3 d1R Bb2 d2 Bb5+ Kd5 c6 Rb1 Ba6 d1R Bb5 Re7 c7 Rbc1 c8Q Rd2 Ba6 R1c2 Qe6+ Kc6 Qg8 Bh2 Bf2 Bg3 Nf7 Rdd7 Nfd6 Rd2 Nf7 Rc7 Nfd6 Na5 Bf1 Nc4 Bd3 Rc8+
2qb1q2/1qR3qN/1N1bKP1r/4Q1Q1/2Br2B1/1PqN2bb/k2r1R2/2n4n w - - 0 1 legal: proof: d4 a5 h4 c5 e4 cxd4 h5 f5 h6 fxe4 b3 a4 Bd3 a3 Bf1 gxh6 Bb2 axb2 a4 b5 axb5 h5 Qd2 h4 Qd3 Ra6 Qd1 Ra8 Kd2 h5 f4 e5 c4 Ke7 g4 Kd6 b6 Kc5 f5 Kb4 c5 d5 b7 e3+ Kd3 h3 g5 e4+ Kc2 e2 f6 e1B g6 h4 g7 h2 c6 h3 c7 e3 Kd3 e2 Ra3 Nc6 b8N Bg3 Ra5 e1B Qh5 Bfd6 Qe5 Nh6 g8Q Nf5 Be2 Qf8 Ra6 Rh6 Qe4 Ne5+ Kc2 Nd3 Qg5 Nc1 Qf3 d3+ Kd1 d4 Qgf4 d2 Kc2 d1R Ra1 Ra2 Nd2 Ka3 Q3g4 d3+ Kc3 b1Q Kc4 Qc2+ Kd5 Qc3 Ne4 d2 Nf3 Qg7 Rf1 h1Q Bc4 h2 Qgg5 Qg2 Qh5 h1Q Qe5 Qgh3 Nfg5 Bef2 Nh7 Bb6 Qg5 Bd7 c8B Bd8 Rb1 Rc2 B8a6 Ka2 Bc8 Qg4 Rf2 Qf8 Qh5 Qgg7 Qg5 Qh3 Nc5 Qg4 B4a6 Qgb4 Bc4 Qb7+ Nc6 Rb2 Na4 Qd3+ Qd4 Bge5 Nb6 Ng3 Ba6 Bh3 Na8 Nh1 Bg4 Bg3 Nb6 Ne2 Rc1 Qf5+ Qe5 Qfc8 Rc3 Nc1 Bb5 Re1 Rc5 Re4 Bc4 Rc2 Nd7 Rd4+ Ke6 Qca8 Nb6 Qa5 Bb5 d1Q Rc3 Rcd2 Nb4+ Ka1 Ba6 Qc2 Nd3 Ka2 Rc8 Qcc7 Bc4 Qcb8 Rc5 Qc3 Rc7 Q8c8+
1R1RN1nN/3nQnQ1/K1P4b/B7/1P1Rnr2/1qq1n1q1/1q1r4/1k3brB w - - 0 1 legal: proof: d4 b5 d5 e5 a3 b4 axb4 c6 Bd2 cxd5 Bc1 d4 h4 g5 f4 gxh4 b3 exf4 Ra3 a5 Ra2 a4 Ra1 axb3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 g4 d5 c4 h5 e3 f5 g5 h3 c5 d3 c6 d2 g6 h4 g7 d4 Qh5 d1N Nf3 b2 Ne5 h2 Bh3 f3 Nf7 Kd3 e4 Kc2 e5 f4 e6 d3 e7 d2 e8Q f2 Bf1 f3 Ra7 h3 Rc7 Ne3 Ng5 d1Q Qh4 Q8d2 Ne6 Ng4 Nc3 b1Q Qg5 Ba6+ Ka5 Ne5 Rc8 Nbd7 Ne4 Rh4 N6c5 Qb2 Na4 Rf4 Rd8 Kb1 Qee7 Qdc3 Nb6 Qdb3 Nf6 Nf7 Bg2 f1R Ne8 f2 Nc4 Rg1 Be3 f1N Bb6 Ne3 Ne5 Rb8 Qgf6 Bf1 Ng6 Rb7 Bc7 Rb5+ Ka6 Rd5+ Kb7 Rd2 Nh8 Ngh6 g8R Bg7 Rf8 Ng8 Bf3 Bh6 Qg7 Rg5 Rg1 h1Q Rg4 h2 Bg2 Qg1 Ba5 h1N Ka7 Nf2 Bh1 Qg3 Rh4 Rc4 Rd4 Ne4 Ka6 Qf2 Nd6 Rg1 Rb8 Qf4 Rfd8 Qg3 Ne8 Rc5+ Ka7 Rf5 Kb7 Rf4 Ka7 Re2 Ka6 Rd2+
3bq1qb/2NP2r1/1PN2q1k/2Rr1Q2/n1rB2R1/Q2q1nr1/2B3R1/1r3n1K w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g3 fxg3 h3 g2 Ra2 g5 Ra1 g4 Na3 g3 Nb1 Bg4 hxg4 Bc5 Na3 Bb4 Nb1 Bf8 d4 f5 e4 Kf7 b4 Kg6 d5 a5 d6 c5 d7 h5 g5 h4 b5 c3 b6 a3 e5 a2 e6 c2 e7 a4 e8R f4 Re7 h3 Re6+ Nf6 Re5 c4 Qf3 c3 Ne2 g1Q Na3 h2 Rd5 g2 Rd6 Nc6 Rd5 Be7 Rb5 Rh3 Qg4 f3 Ra5 Ne5 Qc4 Qe8 Rd5 Bd8 Ng3 f2+ Ke2 Nf3+ Be3 c1Q Rd2 c2 Nb5 a3 Qb3 Nd5 Nc7 Ra5 Nf5 Qb1 Nd4 c1R Nc6 Rc4 Rc2 Kg7 g6 Rg3 Qd3 Qb5 Rac1 a1B Qf5 a2 Rd2 Be5 Bd4 Kh6 g7 a1Q g8Q Nc3+ Ke3 Qa6 Bd3 Na4 Bc2 Rd5 Qgf8+ Bg7+ Kf4 f1N Qa3 Bh8 Re2 Qc3 Rf2 Qd3 Re2 Qf2 Rg1 Qa8 Re4 Rg7 Re2 Bg5+ Kg4 Bd8+ Kh3 Qg8 Re4 Qb8 Rg4 Qa8 Rh1 g1R Rg2 Qb8 Rg4 Rg2 Rg1 Rcc5 Rf4 Be7 Qa2 Ng3 Qf7 Nh4 Qa3 Qbe8 Bd1 Bd8 Rg4 Qf4 Rc3 Nf3 Bc2 Qfe5 Qf5 Qf6 Re1 Rg1 Re2 h1R+ Rh2 Rb1 Rc4 Rhd1 Re2 Rh1+ Kg2 Nf1 Rd2 Rh3 Rf2 Rcb5 Rc5 Rg3+ Kh1 R5b4 Rg2 Rc4
3N2Rb/1q1rB1qN/1n1b4/4RQQ1/P3r2Q/2K2bP1/qnq2nBr/1b1k4 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 b4 axb4 h4 gxh4 e3 e5 Ba3 exf4 Bc1 fxe3 a4 Ke7 d4 Kd6 g3 f5 Qc2 c5 Qa2 h5 Ba6 b5 Bb2 c4 Nd2 e2 Qa3 c3 Ra2 h3 Ra1 h2 Qa2 f4 Ngf3 h4 Rb1 b3 Ba1 b2 Nb3 c2 Kd2 e1R Rg1 h1N Ne5 c1B+ Kd3 f3 Kc2 f2 Nd2 f1Q Nd3 h3 Ne5 b4 Nef3 h2 Qc4 b3+ Kc3 Ra7 Qd3 Qc7+ Kb4 Qe2 Bb7 Nf2 Ba8 h1Q Qc2 Nd1 Qg6+ Nf6 Bb7 Rh2 Ng5 Nd7 Ne6 Nb6 Nd8 Bg4 Qf5 Qg7 Nf3 Ne4 Ng5 Bf3 Nh7 Nef2 Rf1 Bf4 Rc1 b1B Rc8 Nb2 Kc3 Be5 Bc6 Rd1 Re1 Re7 Rb8 Qg8 Ra8 Bh8 Rc8 Qg7 Ba8 Qef1 Re5 Rd7 Rb8 Re1 Bc6 Re4 Ba8 Nbd3 Bb2 Qe2 Ba3+ Kc7 Be7 b2 Nb7 Qg2 d6+ Kc6 Re8 Ba2 Rd8 b1Q Re8 Nb2 Rd8 Rc7 d7 Qbh1 Rb8 Bb1 d8Q Rd7 Nd6+ Rb7 d5+ Kc5 Rc8+ Rc7 Rb8 Rd7 Nf7+ Rd6 Bh4 Rd7 Qdg5 Bd6 Rg8 Nc8 Nd8 Nb6 Kb3 Kd4 Bb7 Bb8 d6 Kd3 Ba8 Qc1 Bb7 Qc7 Bd5 Qb7 Bc6 Rf7 d7 Bd6 Bd5 Qef1 Bc6 Ke2 Kc3 Ke1 Qgg6 Qfa6 Be7 Kd1 Qgg5 Qb5 Ne6 Qd5 d8Q Qa2 Qh4 Nc8 Qa5 Nb6 Nd8 Qf1 Qc5 Qe2 Qe3 Qd7 Qeg5 Qb7 Bf6 Rc7 Be7 Rd7 Bb5 Qf1 Bd3 Nh1 Bb5 Qf2 Bf1 Qe2 Bh3 Nf2 Bg2 Qc2#
1N1Bnb2/2r5/q2q1Q2/bN1PqRb1/1Q1q1nPr/1bq2R2/1KB3k1/4Bq2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 b6 f5 b5 h5 b7 c5 b6 a5 d3 a4 Kd2 h3 Kc2 f3 Ne2 f2 Rh2 c3 Ra3 f4 Rg2 c4 Rg1 h4 Bd2 h2 Rh1 h3 Nd4 f3 Bc1 Nf6 Be2 f1Q Nd2 Kf4 e5 Kg3 e6 f2 e7 Nh5 e8Q Nd7 b8Q+ Nf4 b7 Kg2 N4f3 Ra7 d4 Rh4 Ng1 Nf6 Qe1 Qd6 Qd7 Ne8 Qg7 Be6 Kb1 c2+ Ka1 c3 Nb1 Bb3 Bd1 Qfa6 d5 f1Q Bd2 c1B Ne2 c2 Nd4 Qg1 Bb4 Bd2 Qf6 c1B Nc6 Qd4+ Nc3 Q4e5 Rf1 h1Q Kb1 h2 Bc2 Qg1 Rf3 h1Q Nb5 Qgd4 Ba5 Qf1 Bd8 Ba5 Qc3 Be3+ Kb2 Qfd1 Ra1 Q1d2 Raf1 a3+ Ka1 a2 Kb2 Qde7 Qbd6 Q7e6 b8B Rc7 Qb4 Q6d6 Ba7 Ne6 Nb8 Bg5 Rf5 Nf4 Rf3 Q4f2 Ka3 Qg1 Bf2 Qf1 Be1 Qed4 Qb2 a1Q+ Qa2 Qac3 Qb2 Qce3 Qc3 Qee5 Kb2 Q2xc3+
2Kb4/r2n4/rqQ1nP2/RBn2Q1B/1kr1N2P/R1r2N2/1n1Qq1n1/b6n w - - 0 1 legal: proof: d4 a5 g4 c5 f4 cxd4 e4 f5 b4 fxe4 f5 axb4 Bf4 h6 Bg5 hxg5 Bd3 b6 Bf1 Ba6 f6 Bc4 Bg2 Be6 Bf1 Bf5 gxf5 Rh7 Nc3 Rh3 Nb1 Rh8 Kf2 e5 Kg3 d5 Kg4 Kd7 a4 Kc6 c4 Kc5 h4 d3 f7 d4 a5 e3 a6 e2 a7 e1Q Nf3 e4 Qe2 b3 Rg1 d2 Rg2 d1N Rh2 b5 Qg2 b4 Ra6 b2 Rf6 e3 Bd3 b3 Qh3 e2 Qf1 Rh6 Qf2 Nd7 Rd6 Be7 f8Q Qb6 Qe8 Kb4 c5 Ngf6+ Kg3 g4 Kf4 g5+ Kg3 Ne4+ Kg2 g3 Kh3 g4+ Kg2 Bd8 c6 Nec5 Bc2 d3 c7 d2 Qfe3 Nf2 c8B d1N Re6 Nh1 Nc3 b1R Rh3 b2 Re5 Rc1 Qg6 b1R Ba4 Nb2 Ne4 Rc3 Bc6 Rbc1 Bb5 Rc4 Qh5 R1c3 Qd2 Re6 f6 Qd1 Qf5 e1N+ Kg1 g2 Kh2 g1N Bca6 Ne2 Bb7 Rb8 a8Q Nd4 Bc8 Re7 Qc6 Nde6 Rd5 Ra8 Bca6 Nf2 Kg3 Qe2 Bb7 Ra6 Bc8 Ng7 Kf4 g3 Kg5 g2 Kg6 Re8 Kf7 g1B Rg3 Re5 Bb7 Nge6 Ke8 Nh1 Bc8 Ndf8 Bd7 Bd4 Rh3 Bc7 Ke7 Ra7 Be8 Nfd7 Bh5 Ng2 Qdf4 Rca3 Ng1 Nca4 Ba6 Rb3 Rd3 Nd1 Nf3 Ba1 Rc3 Ndb2 Qd2 Bd8+ Kd6 Rc5 Bc4 Rca5 Rc5 R5a6 Ra5 Rc5 Bb5 Ka3 Rc4 Re3 Rc3+ Kb4 Ra3+ Rec3 Qfg5 Rc4 Qgd5 Nac5 Qf5 Bc7+ Ke7 Bf4 Ke8 Nc7+ Kd8 N7e6+ Kc8 Bc7 Qff4 Bd8 Qe5 Nca4 Qf5 Nac5
4BR1N/nq2Q2K/n5q1/3N1qbB/P2Pqrr1/1BQ2q1r/n1q1qR2/3k4 w - - 0 1 illegal: No possible last move, all moves rejected
1Nn3B1/3nN3/K2nq2P/3b2n1/qbRnR2P/2Q3B1/Q4qkn/r3qn1R w - - 0 1 legal: proof: d4 a5 h4 b5 f4 c5 b4 cxd4 g3 axb4 Qd3 e5 Qg6 exf4 Qg5 h6 g4 hxg5 Bb2 Rh5 gxh5 Ra6 Ba3 Rh6 Bc1 Rh8 Kd2 Ke7 Kd3 Kd6 a4 Kd5 c3 f5 a5 b3 a6 f3 h6 f2 e3 b2 a7 g4 a8Q+ Bb7 Qa6 g5 Ra4 f4 Rb4 g3 Qa3 g4 Nh3 g2 Ng1 g3 Qa8 f3 Ne2 g1Q Rh2 g2 Rc4 b4 Qa3 b3 Qa6 Ne7 Qa2 Qb6 Nd2 b1Q+ Qc2 b2 Rb4 Nc8 Ne4 Qe6 Rc4 Bb4 Bd2 Qe1 Nd6 b1N Qb2 Na3 Qa1 Nb5 Ne4 Nbd6 Rh1 Qh2 Qb2 g1N N4g3 Nh3 Qa2 Ng5 e4+ Ke5 Be3 Bd5 Nf5 Rh7 Bg2 f1N Ne7 f2 Bf3 Qg2 Bd2 Nh2 Bf4+ Kf6 Bh5 f1N Bg3 Qgf2 Bf7 Rh8 Bg8 Rh7 Kc2 d3+ Kb3 d2 Ka4 d1N Nd4 Nde3 Ndc6 Rh8 Rc5 Nef5 c4 Na6 Nb8 Nd4 Rc7 Rh7 c5 Rg7 Ng6 Rh7 e5+ Kf5 c6 Kg4 Ne7 Kf3 Rb7 Rh8 c7 Kg2 Rb6 Rh7 Rc6 Rf7 Rc4 Rf3 Qa1 Rb3 Qa3 Rb1 Qa2 Ra1 Ng6 Qg4 e6 Qge2 e7 Qe6 Nc6 Nb8 e8R N6f5 Nge7 d6 Qa3 Nd7 Nb8 Bb7 Nec6 d5 Qa2 Nfd6 Ne7 N4f5 Rc6 d4 Rc2 d3 Rc4 Ndf7 Kb5 d2 Bh7 d1Q Bg8 Bc6+ Ka6 Qdc2 Qa3 Nd4 Qa2 Ncb6 c8Q Bd5 Qc5 Nd6 Qca5 Nbc8 Q5a3 Qcf5 Qc3 Qff6 Nec6 Qg4 Re4 Qfe6 Ne7 Qgd1 Qb3 Qdc2 Qc3 Qa4+
3b4/1bq2b2/2nrQ1q1/rb5N/P1B1p2Q/KPQbrkB1/n7/qR1N2R1 w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 h5 d5 cxd5 g6 Nf3 gxh5 Ng1 h4 b3 a4 Qc2 a3 Qc3 Be6 Qb2 Bc8 Ke2 axb2 a4 b5 Ra3 b4 Ke1 bxa3 Kd1 Kf7 Kc2 Kf6 g4 Kg5 d4+ e3 d6 Kf4 d5 e5 f3 c5 g5 h5 g6 c4 g7 h3 d7 h2 d6 a2 Kc3 a1Q Kb4 h4 Nd2 b1B Bg2 h3 Ba3 c3 Nf1 e2 Bb2 e1R Ng3 c2 Bc3 c1Q Bf1 Qe8 d8Q Be6 Qd7 Re3 Bc4 Be7 Be1 Nf6 g8R Bf7 Qe6 Bd8 d7 Bd3 Bf2 Rh6 Rg7 Bc7 d8Q Ne4 Qd4 Rg6 Qc3 Bd8 Be1 Ra5 N1e2+ Kg5 Rg1 h1B f4+ Kh4 f5 Kg4 f6+ Kf3 Rh7 h2 Nh5 Bg2 Rg7 h1B Bg3 Qc6 Re1 Bf1 Rg8 Qc2 Rb1 Qc7 Rg7 Bg8 f7 Rh6 f8Q+ Bf7 Qd5 Rd6 Qh8 Bhg2 Qe6 Bh1 Qd4 Nc3 Qh4 Na2+ Ka3 Nc6 Nc3 Bhg2 Nd1 Bfe2 Ba6 Bb5 Rg4 Qg6 Rg5 Bed3 Rg4 e4 Qc3 Bgf1 Rg5 Nb8 Rg4 Bc6 Bc4 Bb7 Be1 Nc6 Rg1 Bfe2 Bg3 Bf1 Bd5 Bb5 Bc4 Bd3
1r2rnQ1/P1Kbq1R1/BBn1n2Q/5Rp1/P4bn1/b1N5/1kqN1Q2/3nr3 w - - 0 1 illegal: No possible last move
2nbRbBR/1P6/q2BP3/5KbB/1bN3r1/1r2pQn1/r3QNq1/k4nq1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 h5 bxa4 h6 gxh6 Rh4 h5 Rh1 h4 Kd2 e5 f3 d3 Kc3 e4 Bh6 Bb7 Bd2 e3 Bc1 Be4 fxe4 dxe2 Kd4 Ke7 Ke5 e1B b4 a5 g4 f5 c4 d5 g5 h5 b5 f4 g6 d4 g7 h3 b6 d3 b7 d2 c5 a3 c6 h2 c7 a2 c8Q f3 Qb3 d1Q Qb2 f2 Bb5 f1N Ba6 h4 Qb4+ Q8d6+ Kf5 h3 e5 a4 e6 a3 Qa5 Bb4 Kg6 Nd7 Nc3 Nc5 Kg5 Ne4+ Kf5 Neg3+ Kg6 Rh4 Qh5 Rg4+ Kh7 Kf6 Bc4 Qa6 Qhe8 Ke5 Qc7+ Kd4 Qcb8 Ne7 g8B Nc8 Nd5 Qe2 Qa4 Qg2 Nb6 Kc3 Be2 Ra7 Bd2+ Kb2 Qb5 Ra8 Rc1 a1B Qf4 a2 Qf3 Ra7 Rc5 Kb1 Rh5 Bf6 Nc4 Bg5 Kg6 a1B Rh8 Baf6 Bc3 Ra8 Be5 Bd8 Bd6 Ka1 Bd1 Nh5 Kf5 Ra7 Ne2 Qg1 Nc3 Nhg3+ Ke5 Ra8 Ne4 Qg2 Rg1 h1Q Nf2 h2 Be2 Qh3 Rg2 Qg1 Bd1 h1R Rh2 Ne2 Kf5 Qhg2 R2h7 Rh5 Re7 Neg3+ Ke5 Qc6 Re8 Ra2 Be2 Qa6 Bd1 Ne4 Kf5 Rh1 Qd5 Rh2 Qd2 Rb2 Qc2 Rb3 Qce2 Neg3+ Ke5 Nh1 Qe1 Bg7+ Kf5 Rgh4 Qc6 Qg3 Ne4 Ra2 Nf2 Bf8 Qd5 Q3g2 Bh5+ Rb1 Qc6 Rg4 Qe2 Rb3 Qcf3 Nhg3+
r2b3b/1pB1Q1RB/1Q6/nNP1q2B/r2nP3/1bq3r1/4r3/kqn1RKN1 w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 hxg5 Qf6 Nd2 Qe7 Nb1 Qd8 c4 Ra4 e4 Ke7 g4 Ke6 g6 Ke5 g7 d5 c5 h5 g5 f5 g6 a2 Qf3 h4 Qb3 h3 Bg2 f3 Qb5 f4 Qc4 d3 Qc3+ d4 Qc4 f2+ Kf1 d2 Bb2 d1N Bc1 h2 Ke2 f1R Qc2 f3+ Kd3 f2 Ke2 d3+ Kf3 Kd4 Qb3 d2 Ke2 Nb2 Bf3 d1R Bg4 Qf6 Bf3 Be6 Qb6 Nc6 Bh6 Rd3 Qa5 Be7 Bh5 Bb3 Na3 Rg3 Qb6 Kc3 Nc4 Na5 Bg5 Nh6 g8Q Nf5 Qge6 Ra8 g7 Bd8 g8B Nd3 Bf3 Qh8 Rb1 a1B Nd6 Kc2 Rc1+ Kb2 Rd1 Qh5 Bf4 Re1+ Kd2 f1Q Nb5 Nd6 Qe7 Nf5 Bc7 Re3 Be2 Ka2 Bg4 Qf3 Rf1 Bh8 Nh3 Rg2+ Rf2 Nd4 Bh7 Qe5 Bh5 Rg6 Rhf1 h1Q Rg2 Re1 Rgg1 Qfg3 Rf7 Ka1 Rg7 Rg4 Rg2 Re3 Re2 Qb1 Re1 Nc1 Ng1 Qh3 Re2 Rg2 Ke1 Rc3 Kf1 Rc2 Qed6 Qc3 Qe7 Rg3 Re1 Re2
2b1q3/Q2PP2Q/n2Rn3/1rnb2R1/2rB4/1pBn1Kn1/2NB4/1b1N1kqn w - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Bg2 f5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qb3 Ra5 Kc2 Bf4 gxf4 Qe7 Kb2 Ra6 Qd1 Ra8 Kc2 Qd8 h4 Kf7 d4 Kg6 Kd2 Kf5 Ke3 f1B a4 c5 a5 g5 a6 b5 h5 c3 h6 c4 d5 b3 d6 b2 a7 f2 d7 g3 h7 Kg4 f5 g2 f6 Kg3 f7 b4 f8B g4 Qd3 b3 Qd4 c2 Nc3 b1B Qe4 Qe8 Ra5 Ne7 Rh4 Ng6 Rah5 Na6 Bc5 Nf8 Nd5 c3 Rh1 Ne6 Nf6 Rb8 a8Q Rb5 Nf3 g1N Ne1 Bg2 Bb4 Nh3 Bd2 c1N Nd5 c2 Nc3 Nd3 Qa7 c1N Nd1 Ndc5 Rg5 N1d3 Nc2 Rf8 h8B Rf4 Qh7 Bd5 Re1 Kg2 Bbc3 Rc4 Bhd4 g3 Rf1 Rb7 Rh1 Rb5 Rh2+ Kf1 Rh1+ Ng1 Rh6 g2 Rf6 Nh3 Rfg6 Ne4 Kf3 N4c5+ e4 g1Q Rh6 Nhf4 Rf6 Ne2 Rfg6 Ng3 Rf6 Nh1 Rfg6 Nef4 Rd6 Be6 e5 Bf7 e6 Bg8 e7 Bd5+ Ke3 Nfe6 Rh5 Kg2 Ke2 f1N Re5 Nhf2 Rh5 Ng3+ Ke3 Kf1 Rg5 Nfe4+ Kf3 Nh1 B2e3 Rb6 Bf4 Rb5 Bfd2 Neg3+
1b4kn/Br1Qr3/2bpRr2/Rq2N1Nb/1Q6/1QK3Br/P1q2rnP/2b5 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 c5 b4 cxd4 Bh3 axb4 exf5 gxf4 g5 h5 Bg4 hxg4 Kd2 Kf7 c4 b5 c5 e5 c6 b3 f6 e4 c7 e3+ Kd3 e2 Be3 e1R Qc1 f3 Bd2 b4 Qb2 f2 Qc3 f1R Ne2 b2 Bf4 d6 Ng3 b3 Bc1 Rh3 Kd2 d3 Qe5 Nc6 Qa5 Bh6 Qe5 Nd4 Nf5 g3 Nc3 b1R Qf4 g2 Ne7 g1B Ba3 b2 Bc5 Ne6 Nc6 Qd7 Ba7 Ne7 g6+ Kg8 g7 Ng6 Ne5 Nh8 Ne4 Rf2+ Kc3 Bb7 Ng5 Qb5 Qb4 Rf8 c8Q Bc6 Qd8 Nf4 Qd7 Rbd1 Rb1 Ng2 Rc1 b1Q Rc2 Re4 Rb2 Rde1 Rb3 Ref4 Ra3 Rf7 Ra5 d2+ Ngf3 Re7 f7+ Kh7 f8B d1B Qd4 Rf6 Qb4 Ref7 Be7 Kg8 Bd8 Be3 Ng5 Bh5 Bdb6 Bc1+ Be3 Bhf3 Bf4 Bh5+ Bg3 Re7 Qc7 Ref1 Qb7 Rb2 Qd7 Bb6 Rg1 R1f2 Re1 Bd8 Nc4 Bc7 Re6 Bb8 Ne5 Qf1 Qh4 Rb7 Qb4 Qb5 Ne4 Kh7 g8Q+ Kh6 Ng5 Qh7 Qgd8 Kg7 Qb6 Kg8 Qb3 Qf5 Qc5 Qg6 Qcb4 Qc2+
4q1kq/2n5/2pNRB1Q/1qn3B1/3r4/1NPnb1Q1/K1Pnb1n1/1Q1qR2r w - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 g5 e5 g6 exf4 Nf3 c4 Bg2 c3 dxc3 hxg6 Ng1 g5 Bd5 g4 Bc6 bxc6 Kd2 g5 a4 f5 e4 Kf7 h4 d5 e5 b3 h5 d4 a5 g3 h6 g2 h7 d3 a6 b2 a7 f3 Ra2 g4 Qe1 f2 Qe3 f1N+ Kd1 f4 Qb6 f3 Ne2 g1N Ra5 g3 Na3 b1N Bh6 g2 Kc1 d2+ Kb2 d1Q Qb7+ Ne7 Bf4 f2 Kb3 Bg4 Rh2 Nh3 Ra4 g1Q Ka2 Na6 Nc4 Qe8 Bg5 Nc5 Rh1 Ne3 Nd4 f1Q Nb3 Rd8 a8Q Nd2 Qab8 Ng2 e6+ Kg7 Qb5 Rd4 Qg3 Nhf4 Nd6 Ned5 e7 Qh2 Ra7 Qfe2 Re1 Nc7 Ra4 Nfd3 Ra8 Qc8 e8Q Qh6 Qee3 Qe8 Qe6 Qf1 Rd8 Be2 Qeh3 Be7 Qh5 Kf8 Qb6 Qg7 Qh6 Bf6 Qb8 Be5 Rd7 Bf4 Re7 Be3 Re6 Qf5 Qb4 Qd5 Qa3 Qc4 Qc1 Qb5 Qb1 Rg8 Qh1 Qh8 Qhh2 Rg6 Qh1 Rf6 Qhh2 Rf1 Qh6+ Qg7 h8B Rh1 Re4 Kg8 Re6 Qh7 Bhf6 Qh8
3krQK1/1Rn1R1qP/1N3bbp/1r1r2bq/r2bP3/N7/2N3QB/1B2bn2 w - - 0 1 illegal: No possible last move
nk1b3n/1Bb1b1p1/1NK5/3N2Qb/PnbrQ3/1Nr5/R1R1P1q1/2nBq3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 fxe5 h5 g4 hxg4 Bf4 f5 Bg3 f4 Qd2 fxg3 Qd3 Ra5 Qd1 Ra8 Kd2 b5 Kd3 d5 h4 Kd7 c4 Kc7 a4 b3 e6 b4 e7 b2 e8B g2 c5 g3 h5 b3 h6 Be6 h7 Ne7 c6 Ng6 Rh6 Be7 Bf7 Nd7 Qd2 Nb6 Rh5 Kb8 Na3 b1B+ Qc2 b2 Nf3 g1B Nd2 g2 Ndc4 Bh2 Nd6 g1B Ndc4 Bc7 Kd2 d3 Kc3 d4+ Kb3 d2 Bh3 d1Q Bf1 d3 Bg2 d2 Rb5 Qd5 Rc5 Rd8 Kb4 Nh8 Kb5 Qe1 Qe4 d1N Ra2 Nf2 Nc2 Nd3 Nd4 Nc1 Ne3 Bg4 Bg8 Bh5 Nb3 Qg5 Bf7 Rd4 Nd5 Bd3+ Rc4 b1N Bf3 Ng6 h8Q+ Bcd8 Bg2 Bh2 Qh6 Nh8 Be6 Qg4 Qg5 Bhc7 Bf3 Qg2 Bg8 Bf6 Kc5 Ra6 Rcc2 Na8 Bf7 Nc3 Be6 Bg3 Bf5 Bc4 c7+ Kb7 c8N Kb8 Bh7 Bgc7 Ncb6 Bfe7+ Kc6 Ra5 Bg4 Rb5 Bc8 Rb4 Bb7 Rd3 Ne3 Nd5 Bg8 Rc3 Bf7 Nf4 Ned5 Nfd3 Bg6 Nf2 Qee3 Nfd3 Rd2 Nf4 Bc2 Nfd3 Bd1 Ba6+ Kd7 Re4 Rdc2 Bc4 Kc6 Rd4 Qe4 Nb4+
2k4r/r2N3r/n5Qp/RB1B2b1/1B1Kn1Q1/r1b1PP2/4bRb1/2Nn1qq1 w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 a4 gxh4 g5 c5 g6 b5 axb5 c4 Qd3 cxd3 Rh3 fxg6 Rh2 g5 Rh1 g4 Kd2 a5 b4 d5 c4 Kd7 e3 a4 c5 g3 f3 h3 b6 g2 b5 h2 b7 a3 b6 a2 Na3 Na6 b8Q Bh6 b7 Nf6 Nb1 Ra7 Qa8 Bg5 Ne2 g1Q b8Q h6 Qb4 Ne4+ Ke1 Qc7 Na3 d2+ Kd1 Qf4 Kc2 d1N Nc4 d3+ Kb3 d4 c6+ Kc7 Bd2 Bh3 Qg8 Bg2 Qg6 Kc8 c7 Qf7 Be1 d2 Nc1 d3 Qa4 Qd7 Ne5 Qh3 Kc4 Rh7 Nd7 Rh8 Rb1 a1B Rb5 Bc3 Be2 Qf1 Rf5 Qg4 Ra5 Qg3 Rg1 h1R Qb4 Rh2 Rh1 Rh4 Rh2 Rf4 Kd5 Rf7 Qd4 Rfh7 Qb4 Bh1 Rf2 Qgg1 Kc4 Bg2 Qa4 Kb7 c8B+ Kc7 Bb7 Kd8 Bc6 Kc8 Qg7 Nb2+ Kd5 d1B Qg6 d2 Beb5 Be2 Qc4 d1R+ Bd2 Bd4 Bb4 Bc3+ Qd4 Rd3 Ke5 Nd1 Bd5 Bd2 Qc4+ Nec5 Qce4 Ra3 Qg4 Ne4 Kd4 Bc3+
b1q1rq2/pQ2n3/2N1n3/b1qNPn2/3nK1B1/4Rr2/2P1Q2r/2qR1BkB w - - 0 1 legal: proof: d4 e5 f4 exf4 h4 c5 a4 cxd4 b3 b5 Rh2 bxa4 Bb2 g5 hxg5 a3 Rh1 axb2 Kd2 Ke7 Kd3 Ke6 g4 Ke5 e4 d5 g6 f5 g5 h5 b4 h4 g7 f3 b5 Kf4 b6 Kg3 b7 Kf2 e5 h3 g6 f4 Ra5 h2 Be2 Nc6 b8Q Nge7 g8B Bb7 g7 Qc8 Bh7 Nd8 g8B Ne6 Nc3 b1Q Ra2 Qb5+ Kd2 d3 Rb2 d4 Bg6 Qbc5 Kc1 d2+ Kb1 d3 Qc1 d1Q B6f7 d2 Bh7 Kg2 Rb6 f2 Bfh5 f1Q Nd5 f3 Rb5 f2 Kb2 Qde1 Nf3 d1N+ Kb3 Nc3 Qd2 Qc1 Bg4 Bc6 Ra5 Nb5 Be4 Rh6 Bc4 Nbd4+ Kc3 Rh7 Qe3 Bh6 Qe2 Bd2+ Kd3 Rh6 Ra2 Ba5 Qb5 Rb8 Ra3 Ba8 Qb7 Rf6 Bef5 Rf8 Ke4 Re8 Qc7 Rb3 Qb7 Rd3 Nd2 Rf3 Nb3 Qfe1 Bh7 Qeb4 Rd1 h1R Bhf5 Rh2 Bd3 Bc7 Na5 Bb6 Nc6 Ba5 Rb3 Qba3 Bb5 Qab4 Re3 Qba3 Qd3 f1N Qd2+ Kg1 Qe2 Rg3 Bf3 Rgh3 Bh1 Rf3 Bg4 Qab4 Rb3 Qba3 Rdd3 Ne3 Rd1+ Be1 Ba6 N3f5 Re3 Qab4 Qd2 Qba3 Bf1 Qab4 Qe2 Qba3 Nb8 Ba5 Nc6 Ng8 Nc7 Qf8 Nd5 Nge7 Bhg2 Qb4 Bh1 Qc5
1nR2bbb/Br2bkq1/3Pb3/QbB1K3/P3N2r/RQ2r2r/2n1p3/B3N3 w - - 0 1 illegal: No possible last move, all moves rejected
2nQr1q1/1rP1P1r1/R3Q3/1rb5/1knKRn2/3b4/rN1n1Bpr/B1NB4 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 Ke7 e4 Kd6 c4 Kc5 h4 g5 h5 f5 b6 d5 e5 f3 e6 d3 Ke3 g3 b7 d4+ Kd2 f2 h6 b3 h7 b2 Qc2 f4 Qb3 f3 Rh3 g4 Nc3 b1R Rh2 g2 Na2 g3 Be2 f1R Bb2 f2 Bg4 Nd7 b8Q Ngf6 Nc1 Bd6 e7 Nb6 Na2 Qg8 Qc3 Nh5 Rh4 Ba6 Bc8 Nf4 Nf3 g1R Be6 Nc8 Bc1 Rb5 Bg4 g2 Ne1 Rh1 Bh5 Rh2 Qb3 Ra7 Bd1 Rab7 Bb2 Rfh1 Nc1 Rf1 Qc2 Kb4 c5 Rfh1 c6 Rf1 c7 Rfh1 Nf3 f1N+ Ke1 d2+ Kf2 d3 Bd4 Rh3 Ne1 Rg3 Ra5 Rh2 Qa2 Rg4 Qe6 Rg7 Bc2 d1R Kf3 d2 Ke4 Rbg5 Bf2 Bd3+ Kd4 Re5 Ra6 Reb5 Nb3 Rb1 Nc1 Ra1 Bd1 Ra2 Rg4 Nh3 Re4 Nf4 Bb3 d1N Qa8 Na7 Qd8 Nb2 Bd1 Nd2 Qh6 Qf7 Qe6 Re8 h8B Qg6 Nf3 Nc8 Ne5 Qf7 Nc4 Qf8 Qh3 Qg8 Qe6 Na4 Nb2 Nab6 Bh5 Nbc4 Bd1 Rgg5 Be5 Rg7 Na4 Na5 Ke3+ Ka3 Ba1 Nac4+ Kd4 Kb4 Nb2 Bc5#
krBbr1rB/4nR2/PQr3p1/1N2N2r/4QrbR/4r1K1/1q1P3N/r1n5 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 h5 b4 axb4 g4 hxg4 e3 e5 Be2 exf4 Bf1 fxe3 a4 Kd7 h4 c5 h5 Kc7 h6 b5 h7 Kb7 d6 f5 d7 g3 a5 f4 Nf3 c4 Qb3 c3 Rh4 g2 Ng5 g1R Na3 f3 Nb1 f2+ Ke2 c2 Kf3 e2 Ne4 e1R Ng5 Ne7 Qd3 b3 Qd4 b4 Kf4 b2 Bb5 f1R+ Nf3 b3 Qd5+ Nbc6 Qc5 Ne5 Rh3 Qb6 d8Q Bg4 Qdd6 Re8 a6+ Ka8 Qe6 Re3 Na3 b1R Bb2 c1R Bd7 g6 Bc8 Rh1 Nb5 Rg8 h8N Nd3+ Kg3 Rc4 Nf7 Nc1 Qb4 Rc6 Bf6 b2 Ne5 Qd4 Ra4 Ra1 Rh4 b1R Bh8 Qb2 Qe4 Bg7 Rh7 Bf6 Rf7 Rh5 Qd6 Rf2 Qd8 Bg5 Qb6 Rf1 Kg2 Bh4 Nh2 Rf4 Rb4 Nd5 Rc4 Bd8 Rd4 Ne7 Ra4 Re2+ Kg3 Re3+ Qf3 Bd7 Nc3 Rd4 Qc7 Qa3 Rc4 Rb7 Qb6 Rb8 Nb5 Qb2 Ra4 Rf4 Rc4 Rf6 Rg4 Rf4 Rh4 Ree4 Qd3 Bg4 Qc2 Re2 Qe4 Re3+
1qR1b3/4B1QB/2P1n3/4qrrN/1rR2Pr1/Qp6/1rN1n1kq/1KnR2r1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 e5 axb4 e6 fxe6 Bb2 e5 Bc1 e4 a3 gxh4 Bf4 b5 Bg5 b3 Bc1 b2 Be2 b4 Qd3 b3 Qd1 Bh6 Bf1 Bf4 Rh3 Bd6 Rh1 Bb4+ axb4 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 Kf7 f4 Ke6 c4 Kf5 g3 h5 b5 e5 b6 d5 c5 e3+ Kd3 e4+ Ke2 Kg4 b7 h3 c6 h4 Qd2 h2 Kd1 h3 Ra6 d3 Ra3 e2+ Ke1 d4 Ra5 Ne7 Ra4 Rg8 Rc4 Nf5 Rc2 Na6 b8Q Rg5 Qc3 d2+ Kf2 e1N Ke2 d1R Qe3 d3+ Kf2 d2 Ke2 Nd4+ Kf2 Nc5 Rc3 Nce6 Rc4 Bd7 Qd6 Qb8 Bg2 Ne2 Qb6 Ra2 Ke3 Nd3 Qa7 Be8 Na3 b1R Nc2 Rf5 Ba3 Ndc1 Qdc5 Re1 Qc7 d1R Qg7+ Rg5 Qa5 Rd5 Be7 Rf5 Kd2 Rba1 Qc5 Ra4 Qa3 Rb4 Bf1 Ra2 Bg2 N2d4 Kc3 e3 Ne2 Rg1 Be4 Rg2 Rg1 h1Q Rd1 h2 Bd3 Kf3 g4 Qg1 Ng3 h1R Nh5 e2 Kd2 Qh2 Kc3 Rf6 Bh7 Rff5 Kd2 Rhg1 Kc3 Rg6 g5 Rg4 Kd2 Kg2 Kc3 Ra1 Kb2 Ra2+ Kb1 e1Q Bf8 Qee5 Be7 Rgf6 g6 Rfg5 Qh6 Rf8 g7 Rff5 g8R Nde2 Qg7 Bd7 Rd8 Be8 Rc8 Rb2+
Nqn5/2qB1q2/1B4Q1/Np1rNQ1K/3PRbbn/1b3b1P/R3bk2/5qq1 w - - 0 1 illegal: No possible last move
qQ4b1/8/N1P1qbpQ/qq6/2QRB2q/rnR3bP/1kn3BN/b3b2K w - - 0 1 legal: proof: d4 a5 g4 b5 e4 c5 b4 axb4 f4 cxd4 g5 h6 f5 f6 Be3 Ra3 Bf4 hxg5 Be5 fxe5 f6 Rf3 Qc1 Rf4 Qd1 Rf5 exf5 e4 Kf2 Kf7 Kg2 e5 c4 d5 a4 e3 c5 g6 h3 e4 a5 e2 a6 e1B a7 g4 a8B g3 c6 b3 Ra2 d3 Qh5 b4 Rf2 d2 Na3 d1Q Ne2 d4 Qh6 e3 Qh5 d3 Nb1 b2 Qg4 d2 Ng1 b3 Be2 Qa5 Rf1 Na6 Rf2 Be7 Qh4 Nh6 Rh2 Nc5 Na3 b1Q Bf3 b2 Nc2 e2 Kh1 Be6 Be4 Qba2 Nd4 b1Q Ngf3 g2+ Kg1 Qbb5 Rf1 Qda1 Nb3 d1Q Nfd2 Ng4 Bb7 Bg3 Nf3 e1B Ba6 Ra8 Rh1 Qde2 Nh2 Qec4 Rf3 Ne3 Qh6 Nc2 Rc3 Qd3 Qh4 Qdd8 Qf4 Qh8 Qf1 Qh4 Qc4 Nd3 Nc5 Nc1 Ng4 Nb3 Nh2 Kf8 f7 Kg7 Qa4 Kf6 f8Q+ Ke5 f6 Bd5 f7 Bf6 Qh6 Be6 f8Q Bg8 Qc4 Ra7 Qe2 Kd4 Qb8 Ra8 Rd3+ Kc4 Rd4+ Kc3 Qf1 Kb2 Qc4 Qb7 Bb5 Q1b1 Na6 Qf7 Qf1 Qe6 Be2 Q2a4 B2f3 Q4b5 Qc4 Qba1 Nf1 Bgf2+ Kh2 g1B+ Kg2 Bg3 Nh2 Be3 Rg1 B3d2 Kh1 Bc3 Bg2 Q1a3 Rf1 Qf8 Rf3 Ra7 Qb7 Qa8 Qb8 Qab6 Qd8 Ka1 Nc5 Ra3 Na6 Q6a5 Qb8 Kb1 Re3 Ba1 Rc3 Kb2
1Q2q3/2b2q2/qn2R3/2k1rRBb/p1rRQ2q/2r4P/N3PK1b/r1B3rN w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 Ra3 b5 Ra1 bxa4 Nh3 h5 Ra2 f5 Bg2 f3 Ng1 f4 Bh3 Nc6 Ra3 Nce7 Ra1 Nf5 gxf5 Rh7 Bg4 hxg4 Ra2 Rh3 Ra1 Rh8 c4 Ke7 b4 Kd6 b5 a5 b6 g5 b7 d3 b8R d2+ Kf1 f2 f6 a3 h3 a2 f7 a4 Nf3 g3 Nh2 g4 Qe1 d1Q Bb2 Qh4 Bd4 Rh5 Rg1 Qd3 Nf3 Re5 Rb7 Ne7 Qd2 Nd5 Qc3 Nb6 Kg2 f1Q+ Kh1 g2+ Kh2 Qfd1 Rh1 g1R Ng5 f3 Be3 f2 Qc2 f1Q Bc1 Kc5 Nc3 d5 Re7 d4 Re6 Bd6 f8B Qf7 Bh6 Bc7 Rb1 a1R Na2 Qe3 Qe4 d3 Rb4 Rg3 Re1 d2 Rf1 Rf3 Kg2 g3 Rf2 Qc2 Kf1 g2+ Kg1 Qed3 Rf1 Rg3 Rf5 d1R+ Kf2 Rh1 Nh7 Qcd1 Nf6 Rg1 Nh5 Bb7 Bhd2 Rc8 Bg5 Rg4+ Ng3 Q1b3 Qf3 Qe8 Qf4 Bf3 Qe4 Qhh8 Nh1 Rg3 Qg4 Qh4 Qe4 Bh5 Qc6+ Kd4 c5+ Qbc4 Qf3 Qb3 c6 Kc5 Qe4 Qa6 Rd4 Qbc4 Re7 Qcf7 Re6 Rd8 Rd2 Rd4 Rd3 Rc4 Rd4 Bb8 c7 Re3+ Ng3 Rec3 c8Q+ Bc7 Qd8 Re1 Qb8 g1B+ Kg2 Bh2 Kf2 Qg4 Nh1 Rg1 Qea8 Qf4+ Qf3 Qg4 Qe4 Qh4+
3RK2r/2q2QBQ/2k5/2N1P1nB/3r1R2/qr3Prq/1bbpN1qN/2r3b1 w - - 0 1 illegal: No possible last move
5qnB/2k2pPn/1rq1Bq1N/3QPn1n/4N2Q/2q4b/R1r3Q1/K2Rqr2 w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 h5 c4 b5 Kc2 d5 Kb2 Kd7 e4 d3 a4 g2 e5 d4 a5 b3 c5 d2 c6+ Kc7 g6 d3 a6 b4 a7 g3 Qf3 d1Q Qf2 h4 Qd2 h3 Na3 h2 Qf2 d2 Ne2 g1Q Qe1 g2 Nd4 Qf6 Nf3 Qd4+ Kb1 g1Q Nh4 b2 Bc4 Qa4 Qe3 d1N Ba6 Rh6 Qe2 Ne3 Nc4 Nd7 Nd6 Nf5 Ne4 Qc3 Ra2 Qgc5 Rd1 h1N Bg5 Nf8 Qg2 Nhg3 Bc4 Nh7 Be6 Rb8 a8Q Nh5 Qa5+ Rb6 Qb5 Qf8 Qd5 Q6d8 Bf6 Qb5 Bg7 Qf6 Bh8 Qbc5 g7 Rg6 Qh3 Rg2 Qf3 Rc2 Qf1 Ba6 Qf3 Bf1 Qh1 Bh3 Qg2 Nd6 Nf5 Qb5 Nh6 Nf5 Rd3 Kb8 Qc4 Qd2 c7+ Kb7 Qb3 Qc3 Rd2 Qd7 Rd4 Kc6 c8Q+ Qc7 Qe8+ Kb7 Qea4 Q7c6 Nd6+ Kc7 Ra1 Bg4 Qbd5 Bh3 Ka2 b3+ Ka3 b1Q Ra2 Q6d8 Rd2 Qf6 Qh4 Qb8 Ne4 b2+ Qb3 Qh1 Rd3 b1R Rd8 Re1 Rd1 Qd2 Qd5 Qd4 Rb2 Qf8+ Ka2 Qdc3 Kb1 Qf1 Ka1 Qe2 Qh2 Rf1 Qg2 Qg3 Ra2 Qee1 Qdd2 Qga3 Qd5 Qac3+
7B/3p1n1Q/K7/1RbqP3/2q1qr1q/2k2qP1/2Nr2BR/bb1rQRNb w - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 Nc3 g5 Qd3 g2 Qd2 g4 Qd3 g3 Nb5 Na6 Nf3 g1B Na3 g2 Nb1 Nc5 Qd2 Ne4 Qd1 Ng3 hxg3 Qg5 Ba3 Qh4 Bc1 Qd8 Kd2 Ke7 Kd3 Kf6 Kc4 h5 Kb5 h4 a4 b3 e4 b2 c4 d3 c5 h3 c6 d2 c7 h2 a5 Bg7 a6 Bc5 a7 g1R Nd4 Ke5 Qe2 d1Q Qe1 f5 Bh3 f4 Ne2 f3 Bg4 f2 Be6 f1Q Qb4 Nh6 Ra5 Rf8 Bg8 Qh4 Bd2 Nf7 Bc1 Qd5 Na3 b1Q Bd2 b6 Bg5 Bb7 c8R Rg2 Rg1 h1Q Nc2 Rf2 Rb8 Qf3 Ra2 Bc6+ Ka6 b5 Qd2 b4 Qe1 b3 Rb5 b2 Be7 Rae8 a8Q Rh2 Bd8 Re6 Rh1 Rd6 Ng1 Rd2 Rh2 Rd1 Ra1 Qfc4 Bh7 Bh8 Bf5 Bg7 Bh3 Bf6 Bg2 Bh8 Ne3 Kd4 Bf6+ Kd3 Nc2 Rd2 Nd4 Kc3 Bg7 Qbd3 Nc2+ Q3d4 Qd8 b1B Qe7 Q4e5 Bh6 Qef4 Bg5 Bhd4 e5 Q4e4 Bf6 Ng5 Bh8 Rf4 Qh7 Nf7 Bh3 Kd3 Ra2 Ba1 Rf2 Kc3 Rf1 Qe6 Rb2 Rd4 Bg2 Q6d5 Qf2 Rd1 Qe1+ R4d2 Qh6 Qg6 Na3 Qf2 Bh3 Qdd6 Qe2 Rc2 Qe1+ Qdd2 Qh7 Bh1+ Bf6 Qge4 Bh8 Qff3 Ra2 Kd4 Rb2 Qdd3 Ra2 Re2 Rd2 Kc3 Nc2 Re3 Rg2+ Qd2 Rh2 Re2 Bg2 Rf2 Qe2 Qdd5 Qe1+ Rfd2
3nb2q/P1NnK3/4R2n/b2N2Q1/p4RrP/R4B1Q/Bbqkbq2/5n1n w - - 0 1 illegal: No proof kernel
k1r1n1r1/rR3b1R/1nn5/QN2P1P1/q1rrB1BK/2Q5/3Rr1pr/3N1n2 w - - 0 1 illegal: No possible last move, all moves rejected
RN2Q3/2k1K3/B3qQq1/bBNqPr2/P5pn/2n2Q2/q3bn2/nR1n3n w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 b5 Qd2 f5 Qd1 h6 Bg5 hxg5 Nb1 f4 Qd3 Ra6 Qd2 Rf6 Qd1 Rf5 gxf5 Bb7 Qc1 Ba6 Qd1 Bc8 Kf2 d5 e4 Kd7 h4 b3 c4 b2 a4 b4 h5 g4 e5 g5 c5 b3 f6 d3 f7 d4 h6 d2 h7 d3 c6+ Kc7 Rh2 Nh6 Rh3 Bb4 f8Q Ba6 Na3 b1Q Nc2 b2 Qe7+ Nd7 Qe1 Rf8 h8Q Nf5 Be2 d1N+ Kf1 f2 Kg2 f1N Ne3 g3 Kf3 g2 Kg4 d2 Qhf6 f3 Bc4 f2 Bb5 Nh4 Qe2 Qa2 Qe8 b1N Nf5 Nc5 Nd4 Nb3 Ngf3 Ng3 Ne1 f1Q Qef3 g1Q Nd3 Qd5 Nc5 Nbc3 Rb1 Nh1+ Kh5 g4 Kg5 Ndf2 Rh2 d1N Rh3 Nf5 Rh8 Qd3 Kg6 Nh4+ Kg7 Kb6 c7+ Qe6 c8B Na1 Bb7 Qg2 Nc6 Kc7 Nb8 Ba5 Bc8 Rf7+ Kg8 Qdd5 Bb7 Qf1 Bc8 Qfd3 Bb7 Rh7+ Kf8 Qg6 Rg8 Rh5 Bc8 Bb7 Rh8 Ba8 Bca6 Rf5 Rg8 Qdd7 Rh8 Bd5 Rg8 Bc4 Rh8 Qed5 Rg8 Q7c6 Ke7 Be2 Nbd7 Bf1 Qef7 Bb4 Ra8 Be2 Qe8 Ba5 Nb8 Qce6+
rqk5/q3b3/nn1n2Rn/B2PBPQN/2rR1N2/2r4r/p4KQ1/2nnQ3 w - - 0 1 legal: proof: c4 d5 a4 dxc4 e4 f5 a5 fxe4 a6 bxa6 Ra3 a5 Ra1 a4 f4 h5 g4 Qd5 f5 Be6 f6 Bf5 gxf5 Qd4 Be2 Qd8 Bg4 hxg4 h4 Kd7 b4 e5 d4 c5 d5 a5 f7 g5 h5 e3 h6 e2 b5 g3 b6 e4 h7 g4 b7 a3 Qd3 a2 Qc3 a4 Qa3 c3 Nf3 c4 Bg5 c2 Nh4 c1R+ Kd2 e1R Qb2 g2 Qd4 g1N Na3 g3 Be7 g2 Nc2 e3+ Kc3 a3 Qf6 e2 Kd2 c3+ Ke3 Nh3 Rf1 g1N Ng2 Nh6 Rb1 a1Q Qd4 Nf3 Qg4 Nd4 Nb4 c2 Nf4 Na6 b8Q Nf2 Rg1 Nb5 Nbd3 Nd6 Qb2 Kc8 Nh5 Nd1+ Kf3 Qe8 Bd8 Be7 f8Q a2 Qbf6 Qd4 Qg2 Qa7 Ndf4 Qb5 Ra1 Qbb8 Qe8 Rf1+ Kg3 e1N Qg5 Nf3 Rb1 Ne5 Rb4 Re1 Rd4 Nd7 Kf3 Re4 Ba5+ Bd8 Qe5 Be7 Kg3 Nb6 Kf3 Nb2 Kf2 Re3 Qee4 Rc3 Qe1 Nd1+ Ke2 Rd8 h8B Rd7 Kf1 Rdc7 Be5 R7c4 Qf3 Ra1 Rg3 c1N Qg2 Rb1 Kg1 Rbb3 Rg4 Nb2 Kf2 Rh3 Qh4 Rbg3 Rg6 Rgc3 Qhg5 Nd1+
2K1q3/p3qn2/2n2nB1/qRbn4/Bb2bPBR/8/N4rP1/2qQbkNQ w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 g5 a4 c5 f3 cxd4 a5 g4 a6 g3 Ra5 bxa6 Ra3 a5 Be3 a4 Bf2 gxf2+ Kd2 Na6 Ra1 Rb8 Qc1 Rb5 Qd1 Rg5 hxg5 Bg7 Be2 Bh6 Bf1 Bf8 b4 Kf7 c4 Ke6 g6 Kf5 b5 Kf4 b6 Kg3 c5 e5 c6 h5 g7 d5 c7 a3 b7 h4 b8Q a2 Nc3 h3 Qc1 h2 Qc2 d3 Ke3 d4+ Kd2 e3+ Kd1 d2 Ke2 d1N Kd3 e4+ Kc4 e2 Kb5 e1B Kc6 e3 Qbb1 e2 Qf5 d3 Nh3 d2 Qf7 Bf5 Kb7 Be4+ Nd5 Nb2 c8B d1N Ng1 Qe8 Qd7 Ne3 Qa4 Nbc4 Qbb5 Bc5 Rc1 a1Q Rc2 Nf6 g8B Nb8 Qb6 Ne5 Qb1 Nbc6 Rb2 Nf7 Bh7 Beb4 Bg4 e1B Bb5 f1Q Qad1 Rf8 Bg6 Qa5 Nc3 Qe2 Na2 Kf2 Ba4 Ned5 Qbc1 Kf1 Qb1 Ba3 Rb5 Bab4 Qa1 Rh8 Qac1 Rh3 f4 Rf3 Qb1 Rf2 Qbc1 Qe7+ Kc8 Qed8+ Kb7 Bd3 Bc2 Qee8 Ba4 Be4 Qdc2 Qd6 Q1b2 Bed2 Nf3+ Ke2 Qbc1 Nfd8+ Kc8 Qde7 Rd1 h1Q Q2b1 Qh2 Rh1 Qg1 Rh4 Qd1 Qa1 Qc2 Qh1 Be1 Ng1+ Kf1 Qd4 Qc1 Qd1 Nf7#
rn2q1k1/R5r1/n2q1BN1/1Rp2R2/1Q2n1bP/n2Q4/qBpPb2N/K4n2 w - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Bg2 f5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qb3 Ra5 Kc2 Bf4 gxf4 Qe7 Kb2 Ra6 Qd1 Ra8 Kc2 Qd8 Kb2 Kf7 a4 f1B h4 g5 e4 c5 f5 b5 a5 f2 e5 g3 a6 c3+ Ka2 c2 a7 g2 f6 b3+ Kb2 b4 Ne2 g1Q Qe1 g4 Ng3 Be2 Qf1 Qh2 Ra5 Ne7 e6+ Kg8 Na3 Qe8 Ka1 Nec6 e7 Rh7 Nc4 Rg7 Rb5 Na6 Bb2 Ncb8 Ne5 Bd7 Qh3 f1N Ng6 Bf5 Rg1 Bc8 Rg2 Bd7 Rf2 Bf5 Nh1 Qd6 Qd3 g3 Rf3 g2 Ng3 Bg4 Rf5 g1N f7+ Kh7 f8B Nh3 Bf6 Kg8 Bb2 Ng5 Bf6 Rh7 B8g7 Ne4 Bh8 Rg7 Bb2 Qf7 e8Q+ Qff8 Qe5 Qfe7 Qf4 Qe8 Bf6 b2+ Ka2 b1N Ka1 Ne3 Nf1 b3 Nh2 Nf1 Bb2 Na3 Bf6 Nc3 Qb4 Ne4 Bb2 Nc6 Bf6 b2+ Ka2 Rb8 a8R Rc8 Ra7 Ra8 Kb3 b1Q+ Bb2 Qe1 Ka2 Ncb8 Bf6 Qeg3 Kb2 Qde6 Ka1 Qgd6 Bb2 Rb7 Bhc3 Rg7 Bf6 Qa2+
k1b2NBK/8/r1PN1NR1/2bQ2q1/r1B2p1n/r3rp1Q/2P3n1/1q2q1Rr w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 a5 b4 axb4 a4 c5 dxc5 g5 Bb2 gxh4 Ba3 bxa3 Kd2 f5 Kc3 h5 Kd4 d5 Ke5 Kd7 e4 Kc6 g4 b5 g5 Kb7 a5 a2 g6 b4 g7 h3 Qd4 b3 Nd2 b2 Qa4 b1Q Bd3 h4 Nb3 h2 Nf3 h3 Nfd2 f3 Qa3 d4 Qb2 f4 Nc4 Ne7 Kf6 Nbc6 g8B Ne5 Rg1 h1Q Rg6 Ra6+ Nd6+ Ka8 Bdc4 d3 Nd4 d2 Ne6 Nd3 e5 d1R c6 h2 Qd4 Rc1 Qd5 Nf5+ Kf7 Be7 Nf8 Nh4 Kg7 Qe1 e6 h1R Qg5 Rh5 Qd5 Re5 Kh8 Bg5 e7 Re3 e8N Be7 Nf6 Rd1 Nf5 Bc5 Nd6 Rd2 Nh5 Qg5 Nf6 Qb7 Rb1 a1R Rd1 Ra3 Rc1 Ra7 a6 Qb1 Rd1 Rde2 Rc1 Re4 Rd1 R2e3 Rc1 Qeb4 Rg1 Ne1 Be2 Kb8 Bf1 Qd2 Be2 Rea4 Bf1 Ra8 a7+ Kc7 Bc4 Neg2 Ng4 Qde1 Nf6 Rb8 Qe4 Rb6 Qd5 Bf5 a8Q Rba6 Qc8+ Kb6 Qd8+ Ka7 Qc8 Bh3 Qg4 Ka8 Qg3 Be6 Qh3 Bc8
K4nkN/1p1P4/1Bq1nq2/2rQ1rq1/1NP1p2R/4R1r1/2bQ4/Bb1Bq2q w - - 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 f5 Na3 gxh6 Nb1 h5 Bf4 h4 Bd2 Ra5 Bc1 Ra8 g4 fxg4 e3 d5 Bb2 d3 Bc1 d4 Bh3 d2+ Kf1 d3 Kg2 Ra3 Qe2 Bg7 Qd1 Bd4 exd4 Qd7 Kh2 Ra4 Bf1 Qd8 Kg2 Ra8 c4 Kf8 a4 e5 f4 h5 d5 h3+ Kg3 h2 d6 b3 a5 b2 f5 Ra6 f6 Ne7 f7 Rc6 a6 Nd7 a7 Ng6 a8Q Qg5 Na3 b1B Nh3 Nf4 Qa5 Rc5 Bb2 Ne6 Be2 h4+ Kf2 Rh7 Nf4 g3+ Ke3 g2 Nc2 g1R Nb4 h3 Ra3 Rh5 Ba1 Rg3+ Ke4 Kg7 f8B+ Kg8 Ng6 Qf6 Qc2 d1Q Qd2 Qg1 Nh8 Rf5 Bd1 Bc2 Bh6 Ndf8 Be3 Bd7 Qd8 Be8 d7 Bg6 Qc7 Qe1 Qc6 Qg5 Qd5 Qf1 Rg1 h1Q+ Rg2 h2 Bed4 Rgf3 Rg4 Qhg2 Rh4 h1Q Qe1 d2+ Rd3 Ba4 Re3 Bh7 Qe2 Rg3+ Kd3 Bc2+ Kc3 Rb5 Bb6 Bb1 Kb3 Rc5 Ka4 Qe1 Bb3 d1Q Qed2 Qdf3 Bd1 Rc7 Ka5 Qff4 Bbd4 Rc5+ Kb6 Qf6 Ka7 Q4g5 Ka8 Bg6 Qd6 Qc6 Qd5 e4 Be5 Bh5 Bc7 Be2 Bd8 Bed3 Bb6 Bdc2
6r1/q1b1k3/N1Q4r/r1n3nQ/1R1Q1NK1/2B1PBpP/bbR2q1p/1b5q w - - 0 1 legal: proof: d4 e5 f4 exf4 g4 h5 a4 hxg4 d5 b5 axb5 g3 h3 c6 Qd4 cxd5 Qf2 d4 Qh2 gxh2 Kf2 a5 Kf3 g5 b4 f5 c4 d5 c5 d3 b6 g4+ Kg2 g3 Kf3 a4 c6 d4 b7 a3 e3 d2 b5 d1Q+ Ne2 a2 c7 d3 b6 d2 Bb2 Nf6 Na3 Nh7 Nc4 Qe7 Rg1 Nd7 b8Q Rg8 b7 Nc5 Na5 Ng5+ Kg2 f3+ Kh1 f2 Kg2 f4 Qa7 Bf5 Bc3 Bb1 c8Q+ Kf7 b8Q f3+ Kh1 Qe1 Bg2 d1Q Qe5 f1B Nb7 f2 Nf4 Bc4 Qc6 f1R Bf3 Qf2 Qd4 Qc7 Qa5 Bd6 Qab5 Ke7 Qa5 Bg6 Rc1 a1B Rc2 Bb2 Qab5 Ba2 Qe2 Na6 Nc5 Qa7 Qeb5 Bc7 Qa5 Nb4 Na6 Nd3 Qf5 Bh7 Qg4 Qa1 Qh5 Rd1 Rf1 Nc5 Re1 Rd3 Rb1 Bg6 Qda4 Rd6 Qd4 Bc1 Rb4 Bb2+ Rc1 Bgb1 Rc2 Qe1+ Kg2 Rh6 Qcg6 Rab8 Qc6 Rb5 Be4 Ra5 Bd5 Nh7 Kf3 Ng5+ Kg4 Qg1 Bf3 Qf2 Rd2 Bh7 Re2 Qh1 Rd2 Bhb1 Re2 Bf7 Rc2 Bfa2
5B2/1rnb3b/Nn3q2/B1nkrbR1/P3rK1P/3q2p1/3NN1pQ/QR4r1 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 h4 Kf7 c4 Ke6 a4 f1N+ Kd3 d5 e4 g5 c5 b5 e5 g3 c6 g4 c7 g2 Be3 b3 Rh2 g3 Qe1 b4 Rh1 b2 Rh3 f2 Qc1 b3 Ne2 Rh5 Qe1 Na6 Nec3 Ne7 Bc1 Bd7 c8N Ra7 Rh2 Nd2 Qh1 f1R Ra2 Nc4 Ne2 Rg1 Nb6 Rb7 Nd2 b1B+ Rc2 b2 Na8 Nb6 Rh3 Qh8 Qh2 Qf6 f5+ Kf7 Nc3 Nc5+ Ke2 d3+ Kf3 d4 Nc7 Re1 Kf4 Re3 Ne2 Rg5 Rc3 Rh5 Na6 Ned5+ Kg4 Nc7 e6+ Ke7 Kf4 Kd6 e7 Kd5 e8Q Bc2 Qh8 b1B Rb3 Rg5 Rb5 Rh5 Nf3 d2 Bb2 d1Q Nd2 d3 Bc3 Rg5 Ba5 Rh5 Qg1 Rg5 Rh1 Rh5 Qh2 Qf1+ Nf3 d2 Rg1 d1R Rh1 Qb2 f6 Bh7 f7 Bbf5 f8B Qf6 Rg1 Rc1 Qg7 Qd1 Nd2 Qc2 Rf1 Qd3 Rb1 Rg5 Rf3 Rg1 Rff1 Qh6 Qa1 Qf6 Rfc1 Rg7 Rc4 Rge7 Re4 Re8 Re7 Re5 Rg7 Re3 Rg4 R8e5 Rg5 R3e4+
2Q4b/4bR1n/qNn1Bn1r/kNQ2P2/4r3/BP3pqp/2Kn1bq1/2R2N2 w - - 0 1 legal: proof: d4 b5 h4 f5 f4 g5 e4 gxh4 a4 bxa4 d5 e5 d6 cxd6 Bd3 d5 Rh3 d4 Bf1 Ba6 Rh2 Bd3 Rh1 exf4 Qd2 f3 Qe2 f4 Qd1 Bc4 Bd2 Be6 Bc1 Bf5 exf5 Qg5 Rh2 Qf6 Rh1 Qd8 Kd2 a5 c4 d5 g4 Kd7 c5 Kc7 b3 h5 g5 h3 g6 f2 c6 Kb6 c7 h4 c8Q d3 g7 a3 Qg4 a4 Qd1 f3 Qc4 a2 Qd4+ Ka5 Rh2 a3 Qe5 Qb6 Qe6 d4 Qc4 Qa6 Qc8 Nf6 g8N Nh7 Bg2 f1N+ Ke1 d2+ Kf2 d3 Rh1 h2 Qc6 h3 Bb2 Be7 Qdc2 d1N+ Ke1 Nde3 Nc3 Nd2 Nb5 Ng4 Kd1 Ngf6 Qc8 Nc6 Qc5 Ra7 Rc1 a1B Ne2 a2 Rg1 h1Q Ba3 Bd4 Ng3 a1B Bf1 Bf2 Be2 Rd7 Nf1 Rd4 Rg7 Re4 Rf7 Qg2 Qa7 Nb1 Qc5 d2 Kc2 Bad4 Bc4 Qg3 Be6 Ba1 Kd3 d1Q+ Nd2 Qe1 Kc2 Qh1 Nf1 Be5 Ne3 Qhg2 Nf1 Ne8 Nf6 Nd2 Nd7 Nef6 Rf8 Rg8 Rf7 Rg6 Nb6 Rh6 Na8 Nd5 Nb6 Bh8 Qd4 Ndf6 Qc3+ Rb4 Qc5 Re4
k4B2/N1nKN1Q1/1rRnp2p/b1nr4/1n2rQ1q/1Pb2B2/Rq2Q2P/4q3 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 a4 bxa3 Qf3 b5 Bg2 b4 Qe2 b3 Qd1 b2 Bh3 Be6 Bf1 Bb3 cxb3 Qd4 Be2 Qd6 Bf1 Qd8 Ke2 Kd7 Ke3 Kc8 Kf4 Kb7 Kf5 c5 Ke6 g5 f4 c4 d4 c3 f5 e3 d5 h6 f6 a2 f7 g3 d6 g4 d7 g2 Qe1 c2 Qd2 g3 Nc3 b1Q Ba3 c1N Qd4 e2 Qc5 e1B Qg5 Bg7 f8Q Ra4 Nb5 Na6 Qgf6 Ba5 Be2 Re4+ Qe5 Nd3 Na7 Ndc5+ Kf5 e6+ Kg6 Ka8 Kf7 Qb2 Qe7 Nc7 Bf3 Nf6 Qf4 Nfe8 Ne2 g1R Nd4 g2 Nf5 Rd1 Rf1 Rd2 Rfc1 g1Q Qf8 Bd4 Qg7 Qe1 Ne7 Bdc3 Rc2 Rd5 Rac1 Qb8 d8Q a1N Qd7 Qd8 Qb5 Rh7 Qe2 Rh8 Rd2 Nc2 Bb4 Rh7 Ba3 Nb4 Rcc2 Rd7 Rd6 Rh8 Rc6 Rd5 Rd2 Qbb1 Ra2 Qb2 Ng8 Qdh4 Kf8 Rg5 Ke7 Nd6 Kd8 Rh7 Ne7 Rh5 Qb5 Rd5 Qe2 Na4 Kd7 Rh8 Qb5 Rb8 Qe2 Rb6 Qeg2 Nba6 Qe2 Nb7+ Bd6 Nb4 Ng8 Rg5 Bf8 Nd6 Ne7 Rge5 Qf2 Rd5 Qe2 Nc5+
N1bbR1nq/k7/pnq1Q1nN/2KQR3/5Bb1/1pn2P2/1Brq1P2/5B1r w - - 0 1 legal: proof: d4 b5 b4 c5 h4 cxd4 a4 bxa4 h5 f5 h6 f4 Qd2 f3 exf3 gxh6 Qg5 h5 Qd5 h4 Qb3 axb3 Ke2 d5 Kd3 Kd7 c4 Kc6 g4 Kb7 b5 e5 g5 h5 b6 h3 c5 e4+ Kd2 a6 g6 d3 Kc3 e3 Kd4 h4 g7 d2 Bc4 d1B Be2 h2 Bb2 h3 Ba3 Be7 Nd2 Nd7 Bc1 Bc2 Bf1 e2 Ba3 e1N Nc4 Ng2 Ra2 Nf4 Ne2 Bf5 Ng3 Bg4 Re2 Ng6 c6+ Kb8 b7 Nb6 c7+ Ka7 Rg1 h1Q Re5 h2 Nf5 Bf6 Kc5 d4 Bc1 d3 Bb2 d2 Nh6 d1N Rg3 Nc3 b8B+ Kb7 Rh3 Qd2 Rhh5 Rh7 Re8 Bd8 Rhe5 Qg2 Rd5 h1Q Rde5 Nf6 g8Q Qh5 Qf8 Ng8 Qf5 Qh4 Qh5 Qf6 Qf5 Qh3 Qd3 Ra7 Qd5+ Qc6+ Kb4 Bce6 c8Q+ Ka8 Qcd7 Rc7 Q7d6 Bc8 Q6e6 Nd7 Nb6+ Kb7 Na8 Nb6 Ba3 Qh4 Bb2 Qf6 Nf7 Rh1 Nh6 Qh8 Ba7 Nc4 Be3 Nb6 Bf4 Ka7 Bh3 Rc1 Bf1 Rh7 Rf5 Rc2 Re5 Qd7 Kc5 Qb7 Nf7 Rh1 Nh6 Qc6+
1KbB4/6rP/NQ1rp3/N3R1R1/2q4k/2b3n1/Prpb2rB/2nqqN1Q w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 gxf4 g4 d5 cxd5 h5 g5 f5 Bh3 fxe4 Bg4 hxg4 Kf2 Kf7 h4 Kg6 d4 Kh5 g6 c5 g7 b5 d6 e3+ Kg2 b3 d5 c4 d7 f3+ Kg3 b4 Kf4 g3 Ke5 b2 d6 b3 Ne2 g2 Nd2 b1Q Re1 g1R Nf1 c3 Qd5 e6 Nh2 c2 Qc6 b2 Nc3 f2 Na4 f1Q Qh1 e2 Bf4 Ra6 Nc5 Nh6 g8N Nf5 Ne7 Rg2 Nc6 Rh7 Na5 Rhg7 Bg3 Qc7 d8Q Qd1 Rc1 Qc6 d7 b1R Qb6 Rb2 d8B Qb5 Bf4 Qc4 Rb1 Qf2 Nf1 Ng3 Ra1 Kg4 h5 Qg1 h6 Nc6+ Kf6 Nb4 Ke5 Be7 h7 Bg5 Rc1 Nd3+ Kd6 Bf6 Ra1 Bc3 Kc6 Rg5 Kc7 Rg7+ Kb8 Nc1 Rb1 Raa7 Ra1 Rad7 Na6 Rd6 Be5 Nf5 Bh2 Ng3 Nd2 Qf2 Rg1 e1B Nf1 Bed2 Rb1 Rb4 Rb2 Qfe1 Rb3 Bf6 Re3 Rb2 Re5 Kh4 Rg5 Re2 Rg2 Be5 Rf2 Bec3 Rff5 Rf2 Re5 Rg2
B7/5B1p/1N1Q3b/2nQrPn1/N2NrRr1/K4p1q/Pb6/k1rqqR1n w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 d4 fxe4 f4 c5 f5 cxd4 Be3 g5 Bf4 gxf4 h3 b6 g5 Ba6 Na3 Be2 Nb1 Bg4 hxg4 Ra4 Kf2 Ra3 Ke1 Ra8 Kd2 Kf7 Kc1 d5 Kb2 e5 c4 e3 g6+ Kf6 c5 b3 g7 d3 c6 e2 c7 e1Q c8N e4 g5+ Ke5 g6 Kd4 Qe2 d2 Rh3 d1N+ Kc1 b5 Qh2 e3 Bc4 f3 Rh5 b4 Nh3 b2+ Kc2 e2 Kb3 Nd7 Ne7 Nc5+ Kc2 Ra5 Na3 b1R Qc7 Nf6 g8B Nfe4 g7 Ndf2 Qh2 Rc1+ Kb2 b3 Bf7 Rg8 Bb5 Ng5 Bfe8 Nh1 Nc4 Qb8 Qg2 Qbg3 Ng1 Qh3 Bbc6 Rb5 Ka3 Kc3 Qf1 b2 Bf7 b1R Nb2 d4 Nc8 d3 Nb6 d2 Rh4 d1Q Ba8 Rb4 Rg4 Re4 N2a4+ Kc2 Qg2 Rb5 Qg3 Ra5 Rb1 Rb5 Qd6 Ra5 Rb4 Rb5 Rd4 Kb1 Rf4 Ka1 Rb4 Qeh4 Rb2 e1B Ne2 Bc3 Nd4 Qhe1 Rh2 Rb2 Rg2 Rbe2 Rg1 Re5 Rf1 R2e4 Ne2 Rh8 g8Q Bh6 Qgd8 Rg8 Q8d7 Nge6 Qb7 Rg4 Nd4 Ng5 Qbd5 Bb2+
K4B2/r2Nn1pR/Qb2r2q/3Q2RP/3B1kN1/2n1b2q/1q3pbP/qnQ5 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 f5 g4 a5 e4 fxe4 Be2 axb4 Bf3 h5 gxh5 exf3 Kd2 Kf7 Kd3 Ke6 Ke4 d5+ Kd3 Kf5 c4 b5 a4 e5 a5 f2 c5 b3 a6 b4 c6 b2 a7 e4+ Kd2 d3 Ke3 d2 Kd4 e3 c7 e2 Ra4 e1B Ra3 b3 Ra5 Nf6 Nf3 Ne4 Ra1 Qd6 Ra6 Qh6 Na3 b1N Rg1 b2 Nc2 Bb7 Ne5 Nec3 Nd7 Rh7 Rd6 Nc6+ Kc5 d4 Kb6 d3 c8Q Ne7 Rg5+ Ke4 f5 Kf4 f6 Bg2 Ne3 Rh8 Qc2 d1Q f7 d2 Qb3 Qg4 Qd5 d1Q Kb7 Qh3 Ng4+ Bd2 Qc5 Re8 a8Q Be3 Qa6 Ra8 Qc8 Ra7+ Kb8 Qa4 Rdg6 Qa1 Bd2 Nd1 Qc1 Ndc3 Be1 Nc8 Bd2 Bc5 f8B Ne7 Rd6 Bb6 Be1 Na4 Bc3 Rh7 Bd4 Nac3 Re5 Qg6 Rg5 Rh6 Re6 Qh7 Rc6 Re6 Rd6 Re4 Rdg6 Re6 Rh6 Qg6 Rh7 Qh6 Qdc4 Nd2 Qc6 b1Q Qcb5 Qbb2 Qd5 Rc7 Ka8 Ndb1 Nc5 Rb7 Nd7 Ra7+
5q2/R4p2/NbbQ2PP/1k1r2B1/1r4Kn/2B1rp1n/2QB2b1/nN1qR2b w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 g5 Bc1 f3 Qd2 h6 Qf4 gxf4 g5 h5 Bh3 Ba6 Bf5 Bc8 Bg4 hxg4 Kf2 d5 h4 Bd7 b4 Rh5 e4 a5 c4 a4 e5 a3 c5 a2 g6 Ra3 b6 Qc8 e6 Nc6 b7 Na5 b8B Ba4 c6 Bc5 c7 Rf5 e7 Re5 b5 Rd3 b6 Kd7 b7 Kc6 Be3 Re4 h5 Nh6 Rh3 Nb3 Bd2 Qf8 Bc3 Bb6 Ba5 Nf5 h6 Ree3 Be1 Nh4 Ne2 g3+ Kg1 f2+ Kh1 f1B Nec3 g2+ Kh2 g1N Ne4 Bg2 Nc5 Rd2 Rf3 Nh3 Rf1 Rd1 Ba5 Bh1 Bb4 d3 Re1 d2 Ba5 f3 Kg3 d4 Kg4 Bb5 Bb4 Bf1 Ba5 d3 c8Q+ Kb5 Be5 Bfg2 b8B Rc1 Bb2 Rc4+ Bf4 Rd4 e8Q+ Rd7 Bh8 d1R Qe6 d2 Bg5 Rd5 Qd6 Rc1 Qf5 Rc4+ Qe4 Ra4 Bb2 Rad4 Bc1 Rc4 Bc3 Rb4 Na3+ Ka5 Qe5 d1B B1d2 Be2 Qd6 Bb5 Nd7 Bc6 Nb8 Nf4 Qc2 Ka4 Rab1 a1Q Rb2 Qc1 Ra2 Qd1 Nb1+ Kb5 Ra7 Na1 Na6 Nh3+
nKB1r1b1/2r1p2k/2r3Rq/2QN1n1b/3NP1P1/Q1b4p/1r3Rn1/RB3q2 w - - 0 1 legal: proof: b4 b5 d4 g5 h4 c5 f4 gxf4 a4 cxd4 h5 a5 Ba3 Ra6 axb5 Rd6 b6 Rh6 b5 Rxh5 Bd6 Rh2 Bb4 axb4 Kd2 f5 Kd3 Kf7 Kc4 Kg7 Kd5 h5 c4 d3 e4 h4 c5 d2 b7 b3 b6 b2 g3 f3 c6 f2 c7 h3 Bd3 f1Q Ke5 d5 Na3 b1R Qc1 d1N Ne2 f4 Ba6 f3 Ra2 d4 Ng1 f2 Rc2 d3 Rc6 d2 Bd3 Nh6 Nb5 Rb2 Qc5 Nf5 Nf3 Na6 b8R Be6 c8B Kh7 b7 Nde3 Nc7 d1B Nd5 Ng2 Nd4 Qb6 Bb1 Bh5 g4 Bg8 Rg6 Nc7 Ra8 Rc2 Ra1 Na8 b8Q Rc4 Qa3 Rc6 Qc7 Bh6 Qcd6 Bd2 Qdc5 Bc3 Rg1 Qfb5 Rc1 f1R Rc2 Rc1 Rf2 Rc7 Rg5 Qh6 Rg6 Bf7 Qa6 Qf1 Qaa3 Be8 Ke6 Bb5 Nf4 Re8 Nd5 Rc6+ Kd7 Bc4 Nb4 Bg8 Nd5 Rb6 Qab4 Ra6 Qa3 Ra7+ Kc6 Ra6+ Kb7 Rc6 Ka7 Rc7+ Kb8 Ba5 Rfa2 Ne1 Qb6 R1c6 Qbc5 Bc3 Rd2 Re2 Rc2 Ng2 Rd2 Re3 Rf2 Re2 Nb3 Ra2 Nd4 Rb2+
5n1q/Q1Pp4/n3R1Bk/B1bR4/1N5p/1P1b1rqq/1NN2r1r/K2Qnq2 w - - 0 1 legal: proof: d4 c5 Bd2 cxd4 Qc1 e5 Qd1 b5 Bg5 b4 Bc1 b3 axb3 Bc5 Bd2 Ba3 Bc1 Bf8 f4 exf4 Nf3 a5 Ng1 a4 h4 g5 Kd2 gxh4 Ke1 a3 Ra2 axb2 Ra4 Ra7 Ra1 Ra8 Kd2 f5 c4 Kf7 Kc2 Kg6 g4 h5 e4 d3+ Kc3 d2 g5 f3 c5 f2 c6 f4 c7 f3 e5 h3 e6 h2 e7 Na6 e8N Bc5 Ra5 Ne7 Na3 b1Q Nc4 Qd3+ Kb2 h4 Ka2 Rf8 Nf6 Bb7 Be2 f1R Nd5 f2 Nb2 Qg3 Ka1 Rf3 Nb4 Qh8 Bd3+ Be4 Ne2 Kg7 g6 Kh6 g7 Ng6 g8Q Nf8 Bc2 Bd3 Nd4 Re8 Rg1 h1Q Qd5 Re7 Qb7 Re2 Qa7 Qhh3 Rg2 Rh1 Bb1 f1N Ndc2 Ref2 Rg1 Ne3 Re1 Ng2 Re6+ Kg7 Rb5 Ne1 Ra5 Rhh2 Rb5 Be7 Rd5 Bc5 Ne3 Bb5 Bg6 Bc4 Nec2 Bd3 Qe2 d1Q Qf1 Qe2 Bd2 Qe4 Qe2 Qef5 Qd1 Qf6 Nc6 Qf7 Ba5 Kh6 N6b4 Qff5 Na3 Qf1 Nac2 Q5h3
Kn2NkNn/1P6/R1Qnr1P1/1qB3p1/1Q2nb2/2b1Bp1R/b5r1/1qq2Q2 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 g5 b5 axb5 f3 Qd3 h6 Bh3 g6 Bf5 gxf5 g6 f4 Qf5 Nf6 Qh5 Ng8 Qg5 hxg5 Kd2 a5 Kd3 d5 b4 f5 e4 a4 c4 f2 h4 f1N e5 f3 c5 f2 c6 f4 c7 a3 h5 a2 e6 f3 b6 Ra5 e7 Nd7 h6 Ra4 b5 Ra6 b7 Nd2 b8Q f1Q+ Ne2 Ne4 h7 Nh6 b6 Nf7 Be3 Qc1 Nd2 Ned6 Nc3 Bg7 b7 Be5 Nce4 Bf4 Rh3 Rc6 Qa8 Nb8 Qa3 Be6 Nc4 Qd7 Qc3 Rb6 Qb4 Qb5 c8Q+ Nd8 Qcc5 N8f7 Qe1 Rc6 Qcb4 Rb6 Rb1 a1B Qf1 Bc3 Ra1 Rc6 Ra7 Ra6 Ra8 Ra2 Ra4 Rg2 Ra6 Rf8 h8B Rg8 Bg7 Nh8 Bf8 Rg7 Nf2 Rf7 Ng4 Rf6 Nh6 Bf7 Qe2 Re6 Ng8 Qf1 Kc2 d3+ Kb3 d4 Qd1 Qh1 Qf1 d2 Ka3 d1N Kb3 Qf5 Ka4 Qd3 Ka5 Nf2 Kb6 Nfe4 Ka7 Qe2 Qb6 d3 Qb4 d2 Ka8 d1Q Rh4 Qb1 Rh3 Nb5 Nd6+ Kd7 Ne8 Nbd6 Bg7 Qb5 Bgd4 Qc1 Bc5 Qb1 Qf2 Qhc1 Qg1 Rf6 Qf1 Ba2 Ng7 Re6 e8Q+ Kc7 Qc6+ Kd8 Nf6 Ke7 Nge8 Kf8 Ng8 Bd5 Ka7 Bc4 Ka8 Ba2
1Nq4k/PNQK4/2r1p2r/Np2q1b1/1R1n2q1/r1n2Q2/4nP2/Rr2b1BB w - - 0 1 legal: proof: c4 a5 e4 f5 h4 fxe4 d4 c5 b4 cxd4 c5 g5 c6 gxh4 Qc2 b6 Qd1 Bb7 cxb7 axb4 Ke2 Kf7 g4 Kg7 a4 d5 g5 h5 a5 b5 a6 h3 g6 b3 Qd3 h2 Bg5 b2 Be3 h4 Qc2 d3+ Kd2 e6 Kc3 d2 Kd4 d1N Ke5 d4 Ra5 h3 Qc8 d3 Qc6 d2 Bb6 e3 Nf3 e2 Qc7+ Ne7 Ng5 e1B Ra1 Nc3 Na3 d1Q Nf7 b1R Nc4 Nf5 Bg2 Ng3 Na5 Qg4 Nd6+ Be7 a7 Rh6 Rf1 Kh8 Bh1 Qc8 Ra4 Rb3 Rb4 Nge2 Be3 Bh4 Bf4 Ra3 Rg1 Bg5 Rf1 Na6 b8N Nc5 Ndb7 Nb3 Kd6 Nbd4 g7+ Kg8 Bd5 h1Q Bh2 Qhe4 Bg1 h2 Bc6 h1R Bd5 Qf8+ Kd7 Qe5 Bc6 Bed2 Ra1 Be1 Na6 Rc8 Nb8 R1h3 Bd5 Rd3 Bh1 Rd1 Qd8 Rc6 Qc7 Kf7 g8Q+ Kf6 Ra2 Rb1 Ra1 Qfc5 Qgc8 Kg7 Qf8+ Kh7 Qf4 Kh8 Qe3 Qf8 Qf3 Qc8+
1bbn1n2/1b6/pQ1P1Bn1/3b4/R2PkBQ1/N1rR1p1K/7q/nn1r1NN1 w - - 0 1 legal: proof: h4 b5 f4 d5 c4 g5 cxd5 gxh4 a4 e5 e3 exf4 Bc4 bxa4 b4 Nf6 Ba2 Ng8 Bb3 axb3 Kf2 Kd7 d4 Kd6 g4 c5 Kg2 h5 g5 f5 b5 h3+ Kh2 f3 b6 h4 e4 f4 b7 c4 g6 f2 g7 c3 Ne2 f1N+ Kg1 h2+ Kg2 h3+ Kf3 b2 Qb3 a6 Ra4 c2 Bd2 c1N Qb5 Qc7 Be1 Nd7 Kg4 Ne7 g8Q Nd2 b8B Na2 Qg5 Nb3 Nec3 Nb4 Rg1 h1B Bh4 h2 Rd1 Ng6 Na3 b1N Qb6+ Nc6 Kh3 Na1 Qg4 Bf3 Rd3 h1B Ne2 Rh5 Qa7 Nd8 Ng1 Bh6 Qb7 Ndf8 Qb3 Rf5 Bf6 Ra7 Qb5 Rb7 Qa5 Rb3 Qb5 Rc3 Qb6+ Kd7 e5 Bg5 Qb7 Be4 e6+ Kd6 e7 Bh4 Nc2 Bg3 Ne3 Re5 Qb3 Bef3 Nf1 Re1 Qb2 Rd1 Qb7 Be4 Qa7 Bef5 Qb7 Bfe6 Qa7 Be4 Qb7 f3 e8N+ Kd7 Qb3 Qe5 Nc7 Kd6 Bg5 Bb7 Bf4 Bec8 Nb5+ Ke7 Na3 Kf6 Qb6+ Qd6 Qd7 Bh2 Be5+ Kg5 Bg7 Be5 Bf6+ Kf4 Kh2 Qc7 Qh3 Qh7 Qh4+ Kf5+ Kh3 Bg3 Bf4 Qh5 Bh6 Bb8 d6 Bed5 Bf4 Qh7 Kg3 Ke4 Qg4 Qd7 Kh2 Qb5 Kg3 Qb2 Kh3 Qh2+
1N1n1n1r/K1nppb1r/1qB2rk1/2r5/1n3RBQ/1r4Q1/1PPR4/1Nb1N3 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Kd2 a5 h4 a4 g7 Kf7 b6 f3 h5 f2 h6 g4 b7 e3+ Kd3 g3 Kc4 e2 Kb5 e1N h7 d3 Be2 f1R Nh3 g2 Nd2 g1R Bf3 a3 Rb1 a2 Bg4 a1R Rh2 Nc6 b8Q Rg3 Rf2+ Nf6 g8B+ Kg6 Qc1 R1a5+ Kc4 Bb7 Be2 Qb6 Bg4 Nd8 Bd5 Bh6 Bc6 Rc5+ Kd4 Re3 Qg3 Qb5 Ng5 Ra6 Re2 Rh1 Ngf3 Bf4 Ra1 Rh2 Nb1 d2 Qd1 Rb3 Ra4 Nd3 Qh1 d1N Ne1 Bc1 Rd2 Ne3 Rc4 Rh6 Qhh4 Ned5 Ra4 Nc7 Rc4 Re8 Ra4 Nb4 h8N+ Kg7 Nf7 Nh7 Ne5 Rh8 Bh1 Nf8 Nc6 Rhh5 Nb8 Bd5 Bhf3 Bf7 Bb7 Rf6 Bc6 Nbd5 Rc4 Kg6 Rb4 R5h7 Ra4 Rcc3 Rc4 Qa4 Kc5 Nb4 Kb6 Qb5+ Ka7 Nca6 Qg1 Nc7 Rf4 Rc5 Qgg3 Qb6+
b1Nr2Bb/1kP2RN1/3p2Kq/4B3/1r6/p3bnBr/1r1Q2PR/Q2rn1b1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 f4 g5 e4 fxe4 h5 b5 axb5 Qc7 h6 Qd6 Rh5 gxf4 Rh4 Qxh6 Rh1 Qh2 Ke2 Kd8 c4 Kc7 b4 h5 c5 a5 b6+ Kb7 b5 e5 Nd2 e3 Kd3 a4 Ke4 a3 Kf5 h4 Rb1 d6+ Kg6 d3 Rb4 e4 Nh3 e2 Bb2 e1B Rg1 e3 Ra4 e2 Ra5 f3 Ba1 f2 Qb1 Nd7 Bb2 Ne7+ Kg5 Rb8 Qa1 Ng6 Nf4 h3 Nh5 Nf4 Be5 Bg7 Nc4 d2 Rh1 Nd3 Kg6 d1R Ra4 Bf6 Ng7 Bd2 Ra8 Qf4 Rh2 e1B Be2 f1R Bg4 Bc1 Be6 Qh4 Bg8 Rf2 Ra4 Bh6 Rb4 Be3 c6+ Ka8 c7 Bb7 Rb3 Rb2 Rc3 Bd5 b7+ Ka7 Nb6 B1f2 Rc4 Ne1 Rf4 Bg1 Rf3 Rd8 b8B+ Kb7 Ba7 Bc6 Nc8 Qh6+ Kf7 Rd4 b6 Rdb4 Rf4 Ka6 Rf1 Ba8 b7 Rh7 b8Q Rh8 Bg3 Ne5+ Ke6 Rh7 Bd4 N5f3 Kf7 Rh8 Bde5 Rh7 Rh1 h2 Rf2 Rh4 Qb3 Rb4 Qc3 Kb7 Qd2 Rh8 Ne6 Bg7 Rf1 Rh7 Rf2 Bh8+ Ng7 Qf4+ Kg6 Rh3 Rf1 Qh6+ Kf5 Ng5 Be6 Nc2 Rf3 Bgf2 Rf4 Nf3 Bg8 R4b3 Re1 h1R Rg1 Rb4 Re1 Qh4 Kg6 Rg1 Rf7 Rf1 Re2 Rd1 Re1 Qf4 Rf1 Nce1 Rh1 Bg1 Rh2 Qh6+
3r3b/R5n1/KPb1Nrn1/qn1BBN1n/1P1R4/r1r1pb2/3Q2pQ/5k1N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 b4 Kf6 f4 Kf5 h4 g5 c4 e5 h5 a5 c5 d5 c6 a4 b6 d3 Kc3 e3 c7 Ke4 h6 a3 f5 a2 f6 g3 h7 d2 f7 g2 Qa4 d1N+ Kb3 d4 Kc4 g4 Kb5 d3 Na3 g3 Qa6 e2 Rh6 e1N Rc6 d2 Re6 Ke3 Ne2 Kf2 Qa5 g1R Bg2 e4 Rb1 a1R Rh6 e3 Rh2 Qd7+ Bc6+ g2 Rb3 Nf3 Rb1 Bg7 f8Q Bb7 c8Q Rf1 Nc2 Ra3 Qfe8 Ne7 Rh4 Ne5 Qh5 N5g6 Bb2 Rc3 Ncd4 Nf5 Ra1 Rd8 Ne6 Bh8 Rd4 Ng7 Qh2 Ke1 Ng3 Rf6 Nh1 Kf1 Qcc7 Qe8 Qc8 Nd7 Bd5 Ra7 Qa8 Ra6 Qa2 Raa3 Qa5 Bc6+ Ka6 Rf5 Qb1 Nf6 Qc1 Nfh5 Qc2 Rf6 Ra2 Nf2 Ba1 d1B Qd2 Bf3 Bb2 Nf5 Ba1 Nd1 Bb2 Bg7 h8N Qd7 Nf7 Bh8 Nh6 Nfg7 Nc5 Rc1 Nf5 Nc3 Ne6 Nb5 Rf4 Rc4 Be5 Rcc3 Be4 Qd3 Bd5 Qc2 Rd4 Qa4 Rc2 Rd3 Rcc4 Rdc3 Rc5 Bd7 Rc7 Bc6 Ra7 Qxa5+
2N1K2k/3Qp2n/R1qr1rQ1/3b1NP1/2B2q2/Pq2p2B/6nq/Rr1b1Br1 w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Ba6 fxe6 Be2 e5 Bf1 e4 f4 Nc6 g4 Bh6 h4 Na7 f5 Nf6 Bf4 gxf4 g5 Nc6 g6 Bg5 hxg5 Nb8 Ke2 Ng8 Kd2 Qa5 Ke1 Qd8 Kf2 Kf8 c4 Kg7 c5 h5 c6 b5 c7 d5 a3 e3+ Kf3 h4 Kg4 f3 Bc4 h3 Bf1 b3 Ne2 b4 Qc1 d3 Qc2 b2 Bg2 f2 Rh2 f1Q Nec3 d4 Nd5 b3 Bh1 d2 Bf3 d1Q Nb4 d3 Qd2 Nc6 Nd5 Nd4 Nb6 Nc2 Be2 Qe8 Nc3 b1R Ne4 b2 Ng3 Be6 c8B Ne1 Qc2 Bd5 f6+ Kf8 f7 Kg7 Qa4 d2 Qd7 Rh6 f8Q+ Kh8 Qf7 Ng2 Nf5 Qb3 Qfe6 Qf2 Bf1 Ra6 Rh1 h2 g7+ Kh7 Qf7 Rd6 Kh5 Qf8 Qf6 Rc1 Qf7 b1R Qfe6 Qf4 Qf6 Qe8+ Qf7 Nh6 g8B+ Kh8 Qg6 Ng4 Bf7 d1B Be6 Ra5 Bca6 Qc8 Bac4 Qc6 Nc8 Rc5 Qf7 Nf6+ Kg6 Nh7 Qfe8+ Nf8+ Kf7 Rb5 Qed8 Rb8 Ke8 Nh7 Qb6 Ra8 Nh4 Ra6 Bh3 Rf6 Nf5 Rd6 Qd4+ Rf6 Qe4 Rd6 Qe6 Rb6 Qg6 Rf6 Bfe2 Rd6 Rf1 h1Q Rf2 Rf6 Bf1 Qhh2 Rc2 Qa8 Rd2 Rbd6 Rc2 Qc6 Rb2 Qa2 Rb6 Qb3 Ra6 B1f3 Bfd3 Rg1 Bf1 Bd1
1q1n2q1/N1Qp3P/qR3bp1/1B2K3/4N1r1/1nP2kr1/n3b2B/nqQR2R1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 e3 f5+ Kd5 f3 b6 b3 c3 f4 e4 d3 b7 f2 h3 b2 e5 d2 e6 f3 h4+ Kf4 e7 g3 e8R g2 h5 Ne7+ Kd4 Nbc6+ Kd3 Ra4 h6 Rg8 h7 Nd5 Na3 b1Q+ Nc2 Be7 Ra3 Bf6 Be2 f1Q Re3 f2 Qe1 d1N Re6+ N1e3 Nf3 g1Q b8Q+ Kg4 Qc7 Ndb4+ Ke4 Na2+ Bc4 Ba6 Nd2 Qdb8 Rb3 Nd8 Rbb6 Qe2 Red6 f1N Rd4 Qg3 Rg1 Bb5 Rd3 Ba6 Na3 Nc2+ Kd5 Na1 Ne4 Nd2 Bb5 Ndb3 Rd1 Kf3 Bf4 Qg4 Bh2 Qf1 Bc6 Be2 Nb5 Rb4 Na7 Qg6 Nd6 Rg4 Ne4 Qf7+ Kd6 Qc4 Qd2 Qa6 Bb5 Qg2 Kd5 Re8 Ng3 Re3 Ne4 g6 Qc1 Qh3 Re6 Qh6 Rb6 Qg7 Kd6 Qg8 Rge1 Kg2 Rh1 Reg3 Rhe1 Qe8 Rg1+ Kf3 Kd5 Qg8+ Kd6 Be7+ Ke5 Bf6+
4rQN1/qNpBbq1r/1P3bR1/1r1R3P/K3Q1B1/5n1n/p6k/q2R1rq1 w - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 Kf2 e5 Ke1 exf4 b3 f5 Ba3 f3 Be7 h6 Bf6 f4 Bg5 Bf5 gxf5 hxg5 d4 Kf7 Kd2 Kf6 Kc3 a5 e4 a3 h4 g4 b4 g5 d5 Ke5 h5 a4 f6 g3 f7 f2 d6 g4 b5 f3 Kb4 Kf4 b6 c3 e5 g2 e6 Kg3 e7 c2 e8B c1R Kb5 a2 d7 Nc6 Qe1 Nge7 Qc3 Ne5 Qb4 N7g6 Rh4 Nf4 Qc5 Nh3 Qc4 Be7 f8Q Rh7 Na3 Rb1+ Qb3 Kh2 Qb4 g3 Ne2 g1B Rd4 g2 Nc4 a3 Nf4 Qc8 Be2 f1Q d8R f2 Rd2 Rb2 Re1 a1R R2d6 a2 Na5 Qb7 Bc6 Rd1 R8d7 Re8 Ka4 Qb8 Qe4 Rb5 Rg6 Ra1 Rb1 Qc1 Bf3 f1Q Bg4 Bd4 Nb7 g1Q Nd5 Qf7 Nf6 Nf3 Ng8 Bdf6 Rd5 Qc3 Bcd7 Qe5 Rb3 Rf1 Rb1 Qa1 Rbd1 Qa7+
R7/Bq1bB1nq/1P1QN2P/N3Q3/2pRN1k1/qqb5/p4qr1/qr1K2b1 w - - 0 1 illegal: No possible last move
3qq1Nn/p2R2Qb/k5r1/2K1R2B/Npr1b3/B1r2P1P/rb1r1Qr1/1Q6 w - - 0 1 illegal: No possible last move, all moves rejected
2b5/2B2N1Q/Kn1N4/1p3PqR/k4Pqr/2b1Q2N/qq1B2pq/2b1b1Rr w - - 0 1 legal: proof: d4 h5 b4 c5 g4 cxd4 f4 Nc6 Bh3 Ne5 b5 Ng6 b6 axb6 e3 b5 f5 Nf4 exf4 hxg4 Bf1 b4 Bc4 Rh6 Bd5 Rh8 Be6 fxe6 Ke2 d5 Kd3 Kd7 c4 Kc6 a4 g5 h4 e5 c5 g3 h5 g4 a5 Kb5 a6 b3 a7 b2 c6 g2 c7 e4+ Kd2 e5 h6 e3+ Kd3 g3 h7 e2 Rh5 e1B Ra2 e4+ Ke2 d3+ Ke3 d2 Kd4 e3 Ra1 e2 Rh4 Qg5 Rh6 Ba3 Rf6 Ne7 Nh3 g1Q+ Kc3 g2 Rh6 Qh2 Rh5 d4+ Kb3 d3 Nc3+ Ka5 Kc4 b1Q Nb5 Nd5 Qb3 d1Q Nd6 d2 Nf7 Qb2 Qe3 Ka4 Rb1 b6 Ra1 Rb8 Rb1 Rb7 a8Q+ Ra7 Qb7 Qdc2+ Qc3 d1Q Bd2 Ra5 Ra1 Qcb1 Qe3 Rb5 Qg1 Rb3 Qe3 Q1a2 Rc1 Qe5 Rb1 Bc1 Ra1 Qb2 Rb1 Rf8 h8B b5+ Kc5 Rg8 Be5 Nb6 Ra1 Rh8 Bd6 Be6 c8N Ra3 Bc7 Rh7 Ba5 Bc3 Ncd6 e1B Kc6 Rh6 Qa7 Rb3 Kb7 Qdg4 Ka6 Bc8+ Qb7 Rb4 Rb1 Rd4 Bb4 Rd1 Ra1 Bf2 Ba5 Rh1 Rb1 B1d2 Rg1 Bc1 Bb4 Bfe1 Ba5 Bg7 Bd2 Bc3 Nh8 Qc2 Bb8 Ka3 Rh4 Be6 Qh7 Ka4 Nhf7 Qcb3 Bc7 Qbb2 Rh5 Qf6 Rg5 Rh4 Rh5 Qfg5 Rh6 Bd7 Rh5 Bc8+
2n2R2/k4pn1/4B1q1/2K5/PN1pq2q/n2q1P2/RnQ1q1N1/rbr2BQN w - - 0 1 legal: proof: c4 g5 b4 e5 d4 exd4 c5 g4 b5 g3 b6 axb6 Na3 bxc5 Nb1 c4 Qd3 c3 Qd2 Ra5 Qd1 Ra8 h4 Bh6 f3 Ra4 Be3 Ke7 Bf2 Bg5 hxg5 Qf8 g6 Rb4 Qd3 gxf2+ Kd1 Ke8 g4 Rb6 g5 Ra6 Kc1 Ra8 Qd2 Qe7 Qd1 Qd8 Kc2 d5 Kd3 Kd7 e4 Kc6 e5 Kb6 g7 c5 g6 h5 a3 c4+ Ke2 h4 e6 d3+ Ke3 h3 Kd4 h2 e7 d2 e8B c2 Be2 f1Q Nh3 c1Q Bb5 c3 Bc6 c2 Ng5 Nh6 g8N Bf5 g7 Ka7 Rg1 h1Q Beb5 Qe2 Rg2 Nd7 Nh3 Nb6 Rg3 Nc8 Bd3 b5 Bb7 b4 Ne7 b3 g8Q b2 Nf4 Qh4 Nc3 Qb1 Na2 c1Q Qc2 Qce1 Kc5 d1N Ng2 d4 Qg6 Qg8 Bd5 Qh7 Qg7 Qg6 Be6 Qhe4 Rh3 Q1h4 Nb4 Rd8 Rh1 Rd7 Ra2 Rc7+ Kb5 Rc3 Bdc4 Q4d3 Kc5 Be4 Rg1 Nf5 Qg8 Ng7 Nf5 Nb6 Re1 Nc8 Ng3 Bf5 Nh1 Qde4 Qd2 Qbd3 Qc2 b1N Rg1 Nb2 a4 Ra3 Qd8 Rb8 Qg5 Rc3 Qe3 Na3 Rb1 Rb7 Qg1 Re7 Qb3 Rc1 Qc2 Rc7+ Nc6+ Kb7 Raa1 Qc3 Qf1 Rd1 Qd2 Qef4 Qde1 Qec2 Qe3 Nb6 Qd2 Qfe3 Kd6 Nd3 Rb4 Nb2 Ra2 Ra1 Qg1 Qb1 Bf1 Qe2 Rb5 Qcc4 Nb4 Ka7 Rc5 Qb5 Rd5 Rc1 Rc5 Bd3 Rc8 Qbf5 Rb8 Qfe4 Rf8 Bc2 Kc5 Nc8 Qc3 Bd3 Qc4 Qbc2 Qc3 Qcd1 Qc4 Bb1 Qc2 Qdd3
1n1qnRq1/Q7/1qk1bB2/4bp2/Pnb4r/3NBNp1/1K1R2QP/1bNn4 w - - 0 1 legal: proof: g4 c5 f4 e5 d4 cxd4 b4 h5 g5 a5 Be3 axb4 Bc1 b5 Bh3 f6 Bg4 hxg4 Ba3 Ra6 Bb2 f5 Bc1 Rf6 gxf6 exf4 Kd2 d5 e4 Kd7 c4 g5 Kc2 g3 a4 d3+ Kb2 g2 e5 d4 f7 b3 e6+ Kc6 c5 f3 e7 g4 e8N d2 Qf1 d1N+ Ka3 d3 Nd6 b2 Ne8 f2 Nd6 d2 Nb7 Bd6 f8B Nc3 Ne2 g1Q Qg2+ Nd5 Bg7 f1B Ra2 d1N Be3 Be6 Nd2 b1Q Nc1 Nc3 Bf6 Bc4 Nf3 Be5 Rc2 g3 Rd2 Qf2 Rg1 Rh4 Re1 Nb4 Ree2 Qe4 Kb2 Qg4 Re1 N4a6 Ree2 b4 Re1 b3 Rd1 Kc7 c6 Nb4 Nc5 Kb6 c7 Kc6 N5d3 Qg5 Ka3 b2 Re1 b1B c8Q+ Qc7 Qf8 Qd8 Qf7 Qg4 Kb2 Qg6 Bh8 Nf6 Qa7 Ne8 Bf6 Qg8 Bd4 Qb6 Re4 Qa5 Be3 Qd8 Rd4 Qg1 Rd7 Qf2 Rf7 Qg1 Rf8 Qf2 Beg5 Qfb6 Be3 Nd1+
Q6Q/R6n/q2qK1P1/1pNRR2n/bk5q/r3b1Pp/B3q2b/N1n2Bb1 w - - 0 1 illegal: No possible last move, all moves rejected
R1qb1NbK/1N2n2n/1p1QR1B1/3q3p/5nP1/1P4Q1/B3n1qb/rb2Nk2 w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 d5 gxh4 d6 cxd6 Qd3 d5 Qd1 d4 a4 b6 a5 Ba3 a6 Bf8 c4 Ke7 Bd2 Ke8 Bc3 dxc3 Ra2 Nc6 Qa4 Rb8 Qd1 Rb7 axb7 a5 Ra1 Nb8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 Ke3 c5 Kf2 e4 f5 e5 d5 b3 d4 e6 h3 c6 a4 e7 c2 e8Q c1N c7 f3 Qe6 a3 Qc2+ Ne2 Qd1 a2 Qc2 d3 Qh6 f4 Qg7 h2 Qf6 d2 Qcg6 d1Q Qfg5 Q1d5 Bg2 Be6 c8B Nf6+ Kh4 h5 Nd2 Nh7 Re1 a1B Nc4 Bd6 Na5 Bg8 Bf5 Nc6 b8N Ne7 Bb1 Qc8 Nd7 Bf6 Ba2 Bc7 Bf1 Bd8 Nf8 Be5 Nb7 Bec7 Rc1 Bb8 Rc6 Ke1 Re6 f2 Qc2 f3 Qc5 Bbc7 Bg2 f1Q Qge3 f2 Be4 Qg2 Qg3 Nf4 Nf3+ Ke2 Rd1 f1B Qd6 h1N Ne1 Bb8 Ra1 Bbc7 Qh2 Ng3 Bg6+ Kf2 Qh3 Bd3 Qh2 Nge2 Qh3 Nf6 Qe3+ Kf1 Qg3 Bf5 Kg5 Nh7+ Kh6 Bb1 Qd7 Bd6 Kg7 Bc5 Qd6 Bg1 Qb4 Bh2 Qd6 Bf7 Nd7 Re8 Nf8 Bg8 Kh8 Nf5 Rf6 Re3 Re6 Ne7 Bf7 Rc3 Bg6 Rc1 Qh4 Qcc6 Qg3 Bc2 Bb1 Qc8 Ra8 Bd3 Ba2 Ra1 Bb1 Be4 Ba2 Bb1
qrqB1Qn1/n3p2N/1n3Q1P/Kb4qR/p7/1qn3QN/kr1PRB1r/8 w - - 0 1 legal: proof: c4 b5 f4 h5 e4 f5 a4 bxa4 c5 fxe4 Be2 g6 Bg4 hxg4 g3 Bh6 f5 Bf4 c6 dxc6 gxf4 c5 Qe2 c4 Qf3 Qd5 Qd1 Qd8 b4 Kd7 h4 Kc6 h5 Kb5 f6 a5 f5 c5 f7 a3 f8B c3 f6 Kc4 f7 g5 b5 g3 b6 g2 b7 e3 Ra2 e2 Ra1 c2 Rh4+ Kb3 Rf4 g4 Rf6 g3 Nf3 g1N Ra2 g2 Ng5 c4 Rf1 c3 Nh3 a4 Bb2 Nc6 Bh6 Rb8 f8Q Na7 Rf2 Bd7 Ra1 a2 Bf4 Bb5 Bc7 Qd3 Rf5 Nf3+ Kf2 g1N Bd8 Ne5 Qf1 Nd7 Ke1 Nb6 h6 c1R+ Kf2 c2 Nc3 Rd1 Ne4 c1Q Rh5 Qc8 Nf6 Qdf5+ Ke3 e1Q+ Kd4 Qg5 Qf2 Qee6 Nh7 Qec6 Rb1 a1Q Q2f6 Ka2 Bc3 Rf1 Re1 Qd1 Re2 Rf2 Bb4 Rh2 Bc5 Qb1 Kc3 Qc2+ Kb4 Qb3+ Ka5 Qe4 Re1 Ne2 Bf2 Nc3 Re2 Ra8 b8Q Qf3 Qc7 Rb8 Bc5 Qa8 Bf2 Rb7 Bh4 Be8+ Ka6 Qa3 Rf2 Qcb8 Qcf4 Nc4 Ba5 Rb2 Q8g7 Qab3 Re2 Bc6 Bc7 Nb6 Bf2 Bb5+ Ka5 Qd8 Qg3 Qe8 Qff3 Nf6 Qff4 Qeb8 Qe5 Rd8 Qf8 Ng8 Qef6 Rc8 Bd8 Qbb7 Qgf4 Rb8 Qg3 Qc8
B1nrn1qq/1P6/RN2bRn1/1bb1q1P1/p5B1/n2Nb3/4R2p/1k1K1QQ1 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 e5 f4 exf4 g5 b5 Be3 bxa4 Kd2 f3 Bf4 f2 Be5 Ra6 Bf6 gxf6 h5 f5 Ra2 f4 Ra1 Rg6 hxg6 Bc5 Na3 Be7 Nb1 Bf8 b4 Ke7 e4 Kd6 c4 Ke5 g7 f5 b5 h5 b6 d5 c5 h4 c6 h3 c7 a3 Qc1 a4 Bd3 f1Q Qc4 a2 Rh2 f3 Rf2 h2 Qb3 f4 Nh3 Nf6 g8Q Bc5 Re2 f2 Na3 f3 Qb1 Be6 c8B Nbd7 Qb4 Ne8 Ng1 Qh3 Bb1 f1N+ Kc2 d3+ Kd1 d2 Qf8 d4 Qf7 f2 Ba6 Ng3 Nc2 f1B Qa3 Nf8 Rf2 Nf5 Re2 Ne7 Qe3 Nfg6 Bb7 Nc8 Ba8 Rf8 b7 Qh8 Nh3 Qc7 Rg2 Bb5 Qf1 Qcg7 Qee1 Qgg8 Nf2 Kf4 Na3 Qe5 Kc2 d1N Nc4 Nb2 Nb6 Nc4 Kd1 d3 Bc2 Qeh8 e5 d2 Bf5 Na3 Bg4 Be3 Rc1 a1B Rc6 Bad4 Nd3+ Ke4 Rf2 Bc5 Rf6 Kd4 Qg3 Kc3 Qgg1 Kb3 Rd6 Ka2 Rc6 Kb1 Rd6 Bec4 e6 Bd5 e7 Be6 Qf5 Nc7 Qff1 Rd8 Rf3 Qe5 e8R Qeh8 Re7 Ne8 Rf6 Bf4 Nd5 Bed7 Ra6 Bf5 Re3 Be6 Ke2+ d1Q+ Kf2 Ka1 Nb6 Qe1+ Kf3 Ka2 Re5 Qc3 Ke2 Qa1 Re4 Qe5 Kd1 Kb1 Re2 Bfe3
Qb5b/1N2rB2/KPB5/R3bnbp/1P1Q1N1B/nbr3n1/pk6/2R2b1n w - - 0 1 legal: proof: e4 c5 a4 f5 d4 fxe4 b4 cxd4 h4 b5 h5 bxa4 h6 Qa5 c4 Qb5 cxb5 gxh6 Rh3 h5 Rh1 h4 Kd2 Kf7 f4 Kf6 g4 a5 f5 Ke5 f6 d5 f7 h5 b6 a3 g5 a4 g6 d3 Kc3 a2 g7 a3 Be2 h3 Qd2 d4+ Kc4 h2 Kb5 e3 Qe1 d2 Nc3 d1N Nb1 d3 Nh3 Kd4 Ng5 e5 Rf1 h1N Nh3 d2 Rf3 e4 Rf1 Ne7 g8B Ba6+ Ka5 Ng3 Nc3 Nf2 Bh7 d1B Nf4 Nd7 Bb5 e2 Bc4 e3 Ng6 Nef5 Rg1 Rc8 Nf4 Bd6 f8Q Nfh1 Bf7 Bb8 Ne4 Rc3 Nc5 Ne5 Qf1 e1B Ng6 e2 Na4 Bd2 Nc5 e1B Be8 Bg5 Nb7 Bb3 Bg8 Rh7 Bc6 Re7 Bf7 Be2 Qg2 Nc4+ Ka6 Bf1 Qh8+ Kd3 Qf3+ Kc2 Nf4 Be5 Be3 Kb2 Bf2 Bb8 Rc1 a1B Qd4 a2 Qfd5 Bd2 Qd8 Be5 Qa8 Bb8 Rg2 Bf6 Be1 Bfe5 Re2 Bh8 Re5 Be3 Ra5 Na3+ Ne2 Bg5 Bf2 Bh3 Nf4 Bf1+ Bc4 Ne4 Qd2+ Rc2 Qd8 Kc3 Bh4 Neg3 Rb1 Rc1 Qd7 Kc2 Qd8 Bae5 Qd4 Rd1 Ra1 Rd3 Bf7 Rc3+ Ne2 Nc4 Rc1+ Kb2 Nf4 Na3+
1qb1r1Q1/5r1R/n3pn1K/1rQ1Np2/p5n1/1q1bB1k1/RNRPPb2/B7 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 g5 b3 cxb3 g4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 Kd7 h4 Kd6 g6 Ke5 b6 f5 b7 a5 h5 c5 h6 b2 h7 a4 g7 c4 Na3 b1B Nh3 g3+ Kf3 e6 Ng1 c3 Qc2 g2 Qd3 c2 Qa6 Ra7 Qc6 Nf6 g8Q Bc5 Rh4 Na6 b8R Rf7 Rb2 Bf2 Raa2 Qb6 Rh2 Qb8 Qc5+ Nd5 Nh3 g1Q Ng5 Qd1 Nc4+ Kf6 Qe8 Kg6 Qd8 Re8 h8B Nf6 Rh5 Rfe7 Rh7 Rf7 Kg2 f3+ Kh3 Bd7 Bg7 Bc8 Bh6 Kh5 Qf8 Bd4 Qc5 f2 Nf3 f1N Nfe5 Nh2 Kg3 Bf2+ Kf4 Ref8 Qe8 Kh4 Qd8 Kh3 Kg5 Re8 Kg6 Kg3 Be3 Qh1 Kh6 Qd5 Rb5 Qdb7 Bb2 c1R Ba1 Bd3 Rbb2 Rb1 Rc2 Rb5 Nb2 Qd5 Nd7 Qb3 Ne5 Ree7 Qf8 Re8 Qg8+ Nhg4+
n1r5/2k3P1/RpB1bp1B/B3bQ2/3N1Q2/3qn1qq/P1p2KnR/1Nb3r1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 b4 axb4 h4 gxh4 e3 e5 Ba3 exf4 Bc1 fxe3 d4 Kd7 g4 h5 d6 c5 g5 h3 g6 f6 g7 e2 d5 b6 Bb2 c4 Bd4 b3 Qc1 b2 Qd2 h2 Qh6 c3 Nf3 c2 Ng1 h4 Qd2 h3 Qf4 Na6 Qe3 Ne7 Be5 Nc7 Qg3 Ng6 Qe3 Nh4 Qf4 Ng2+ Kf2 Ra3 Bd4 Rg3 Bc3 Na8 Nf3 Rg4 Rg1 h1Q Ba5 h2 Nd4 Qc7 Qf5+ Kd8 d7 Bd6 Qf4 Be5 Qf5 Qc3 Qf4 Kc7 d8Q+ Kb7 d6 Be6 d7 Qd3 Qe8 Kc7 Qh5 Rc8 Qhf5 Rg5 Nd2 b1Q d8B+ Kd7 Be7 Qbb3 Nb1 Kc7 Ba3 Rg4 Bc1 Qbc3 Be3 e1B+ Kf3 Bd2 Kf2 Rg6 Be2 Rg5 Bf3 Bc1 Bc6 Qb3 Qg3 Rg4 Bh6 Qa3 Re1 Rg5 Re3 Qg1+ Kf3 h1N Qgg4 Nf2 Qgf4 Ng4 Kg3 Qdf1 Rc3 Qd6 Ra3 Qh1 Ra4 Qa6 Ra3 N4e3+ Kf2 Rg3 Be1 Qb5 Ra6 Qd3 Ba5 Qh3 Nc3 Bd2 Rh1 Bc1 Nb1 Qb4 Nd2 Ne1 Rh2 Rg1 Nb1 N1g2 Nd2 Qd6 Qh4 Bf4 Nb1 Qe5 Qfg4 Qg5 Qf5 Be5 Qhf4 Qgg3+
1qb5/qN2R1pQ/Kb1p2n1/Q2r3p/1rR2P1n/3k2PB/2N1b1q1/n1Q1B3 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 h4 fxe4 h5 b5 axb5 Qc7 h6 Qf4 Na3 Qxh6 Nb1 Qh2 Kd2 Kf7 b4 Kg6 f4 Kf5 c4 e5 c5 a5 b6 h5 c6 e3+ Kd3 e2 Kc4 Ke4 Kb5 e1Q c7 d3 b7 a4 g3 d2 Bc4 a3 Ne2 a2 Be6 Ne7 Nec3+ Kd3 Bh3 e4 Na3 e3 Nc2 e2 Ne4 Ng6 Nd6 Nc6 b8Q Ra4 Qb6 Nce5 Nb7 Qg2 Qa5 Nh4 Ka6 Neg6 b5 Rb4 b6 Bc5 Rf1 Qef2 Re1 Qff3 Bb2 d6 Qc1 d1B Bc3 Re8 Rb1 a1N Rb3 Rb5 Rb4 Re5 Rc4 Rd5 Bd2 Rb4 Qb1 Be6 c8Q Bd4 Qg8 Bc8 Qc1 Be3 Qh7 Bg1 Rf1 e1Q Rf2 Qe6 Re2 Qg8 Re7 Be2 Be1 Be6 Nd8 Bc8+ b7 Ba7 Ne3 Bb6 Nc2 Be6 b8Q Bc8+ Nb7 Qd8 Na3 Qc7 Qa7 Qb8 Nc2 Qe4 Rd7 Qe8 Rdc7 Qd8 Re7 Qa8 Bd2 Qc7 Bc3 Qcb8 Be1 Qaxa7#
2N4b/6r1/r1p2q2/k1N1B1b1/n1pP4/BKpQ1bbb/nR2P1r1/2RQ3R w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 d4 Kd7 Kd2 Kc6 Kc2 Kb5 h4 g5 e6 f5 e7 g3 e8Q+ c6 h5 c3 h6 b3+ Kd3 b2 Kc2 f4 h7 f3 a3 f2 Qf7 g2 Qe7 g4 Nf3 g1B Qf7 g3 Qf4 g2 Qe4 Bh3 Qf4 Nf6 Qdd2 Rg8 h8B Na6 Qf5+ Nc5 Qd1 Nd5 Ng5 Bh2 Nd2 g1B Nge4 Bg3 Be5 Qf6 Bg2 f1R Nc4 Rf2 Nb6 Bg7 Nc8 Bh8 a4+ Kb4 a5 b5 a6 Rg7 Bf3 Rg2 a7 Be3 Bh5 Bg5 Bf7 Rb8 a8R Rb6 R8a3 Na4 Nc5 Ra6 R3a2 Ka5 Kb3 b1B Ba3 Nb4 Rb2 Be4 Bc4 Na2 Rc1 Bf3 Qfd3 bxc4+
1R1nb1rk/pn1Pp1nN/1P2B3/3b1pK1/1rR2R2/1q2rQ2/3N2Q1/3n1n1B w - - 0 1 legal: proof: f4 b5 e4 d5 h4 f6 a4 bxa4 c4 dxc4 g4 Qd7 g5 Qd4 f5 Qd8 b3 Kd7 e5 Qe8 Bb2 Qd8 g6 fxe5 f6 e4 f7 Nh6 Kf2 Ng8 Bf6 gxf6 Ke2 Bh6 Ke1 Bg5 hxg5 Bb7 Nc3 Ba6 Nb1 Bc8 Ke2 Ke6 Ke3 h5 Kf4 c5 f8R f5 d4 a3 g7 e3 b4 e2 b5 e1R g6 h4 b6 h3 Rf7 a2 Qd3 h2 Ne2 c3 Bh3 c4 Nd2 c2 Rf8 c1N Rf1 h1B Nb3 c3 Qb5 c2 Rf2 Bd5 Bf1 Nf6 Nd2 Bd7 Rf3 Be8 Ne4 Nd3+ Kg5 c1N Qb3 Rh4 Ng1 Nh5 Be2 Nc5 Nd2 Nc6 Rf4 Nb7 Bf3 Nd3 Nh3 Nb2 Rc1 a1N Rc4 Nd1 Bh1 Nc2 Qf3 Nce3 Rh8 Nf1 g8B+ Bf7 g7 Re3 Kh6 Kf6 Ng5 Be8 Be6 Qc8 g8Q Ncd8 Bf7 Bdc6 d5 Qe6 d6 Bd5 d7 Rg4 Rc8 Ng7 Rcc4 Qd6 Be6 Qa3 Qh7 Qb3 Qg6+ Ke5 Nh7 Rc8 Rcd4 Rc4 Qg5 Rb4 Rc4 Rg3 Nf8 Rg1 Qgg2 Kf6 Nh7+ Ke5 Rc6 Nh5 Rc3 Bg6 Rc2 Nc6 Rc8 Be8 Qg6 Ncd8 Qgg4 Rg2 Qgh3 Rg1 Rb8 Rg8 Ng5 Kf6 Qhg2 Bf7 Rc7 Be8 Rcc4 Ng7 Bf7 Nge6 Kh5 Kg7 Nh7+ Kh8 Kh4 Ng7 Kg5 Nh2 Be6 Nf1
3Q1N1b/RRN2np1/1b4pP/n4rBp/PKn1nr2/3q1kBb/3Q4/B2r4 w - - 0 1 illegal: Other
Bnr1R3/1p1k1pN1/7b/p6P/nQ1PbK2/QrRr2n1/1b4NQ/1qB4n w - - 0 1 illegal: No possible last move
3K1q1r/r7/1RQ2Bn1/2B2p1P/2bpRpQ1/bN6/2N1r2P/nbN1rq1k w - - 0 1 illegal: No possible last move, all moves rejected
3Q1r2/1Qr5/2nBqqk1/pp1r3p/nP2R1b1/4B1r1/Q1PKR3/q2N2bN w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 g5 a5 gxh4 a6 Bxa6 Bd3 f5 exf5 Bc8 Bc4 Nf6 Bg8 Nxg8 f4 Kf7 b4 e5 g4 h5 f6 d5 g5 a5 f5 h3 Kd2 e4 Bb2 e3+ Kc1 h2 Ba3 e2 Qe1 d3 Qf2 d4 Qg2 Ne7 Nh3 Nd5 Re1 h1Q Kd2 Ra7 Bc1 Bc5 Nf2 Nb6 Nc3 Rf8 Ncd1 Rc7 Qb7 Nc6 Ra3 Qg1 Nh1 Na4 Rb3 Qf1 Rc3 Qd5 Rc4 Qe6 g6+ Ke8 g7 Kf7 Qa6 Qf3 Qb7 Bd7 Rg1 e1R Rg2 Rg1 Re2 Rg3 g8Q+ Ke8 f7+ Ke7 Nb2 Kf6 Nd1 Qf4+ Ke1 Qh6 Be3 d2+ Kf2 d3 Re4 Rb8 f8B Qh8 Bd6 Rf8 Nb2 Bb6 Kf1 d1R+ Kf2 Rd2 Ke1 Qh6 Nd1 Qg6 Bh6 Bg1 Bhf4 Qg5 Be3 Qf4 Qf7+ Kg5 f6 Bc8 Qe7 Kg6 f7 Qh6 Qh4 Qf6 Qf4 Bg4 Qe5 Qe6 Qa1 Qg7 Qa2 Qgf6 Rg2 Rf2 Rh2 Rf5 Kd2 Rd5 Rg2 Rg8 f8Q Rh8 Qd8 Rf8 Kc1 d2+ Kb1 Qc3 Re2 Qcf6 Nc3 Nb6 Kb2 d1Q Kb3 Qc1 Nd1 Qf1 Kc3 Qff6+ Rd4 Qa1+ Kd2 Rg5 Rc4 Na4 Re4 Rd5+
3Bq2K/1Q1Bqpb1/2rR4/n4b1P/pq2N1Rp/PknnR3/2r1Qq2/6N1 w - - 0 1 legal: proof: c4 d5 f4 e5 b3 exf4 b4 c5 bxc5 dxc4 g4 h6 g5 hxg5 h3 Ke7 h4 Ke8 h5 Ne7 Qb3 Ng8 Qg3 Qd7 Qg4 Qd8 Qh4 gxh4 Kf2 Kd7 Kf3 Ke6 Ke4 b5 d4 a5 a3 g5 c6 a4 e3 f3 c7 f2 Bd2 c3 Rh2 b4 Ra2 g4 Ne2 b3 Ng1 g3 Bb5 f1Q Rg2 c2 Nc3 c1N d5+ Kd6 Be1 Kc5 Ke5 b2 d6 b1Q d7 Nf6 e4 Nd5 Rae2 Rh6 Re3 Qe2 Kf5 Nd3 e5 Rha6 e6 Qe8 d8R Qb4 Bd7 Kc4 e7 Nc6 Ne4 Nc3 Kf6 Kb3 Bd2 Rb6 Bc1 Ra5 Bb2 Rc5 Ba1 Ba6 c8Q Na5+ Qc6 Bc4 Bb2 Be6 Qb7 Rbc6 Ba1 Nd1 Be5 Rc2 Bc7 Nc3 Bb6 Bh6 Bc7 Bf4 Kg7 Bh6+ Kh7 Bf8 Kh8 Bh3 Bc8 Bf5 Rd6 Qf2 Bd8 Qe1 Bd7 Qe2 Rf2 g2 Rf4 Qf2 Ne2 g1Q Rg4 Qgf1 Ng1 Q1e2 Bc7 Qa8 e8Q Qc8 Qe5 Qe8 Bd8 Qee1 Rh3 Qee3 Rf3 Qg5 Re3 Qge7 Qeb5 Nc1 Qf1 Nd3 Qe2 Bg7+
n7/R1rb1p1P/Nq1k2r1/N2p2R1/pb1rQPr1/3BR1bq/Q7/KB4n1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a4 bxa4 g5 a3 g6 hxg6 b5 g5 Bf4 e5 Bxe5 g4 Bd6 Nc6 Bb8 Nxb8 Kd2 Ke7 Kc1 a5 c4 g5 h4 d5 f4 a2 Kb2 d3 e4 g3 h5 d2 b6 g2 c5 g4 h6 g3 c6 Rh7 b7 Qc7 e5 Rg7 e6 Na6 b8Q Nf6 h7 Kd6 e7 Ne4 e8R Ng5 Nc3 Ra7 Qe1 d1R Qe4 Rg6 Nf3 g1R Qa8 g2 Nd4 Bd7 Nb3 Qb6 c7 Rd4 c8B Rc7 Bd3 Nf3 Rh5 Be7 Bb1 Bh4 Re7 Bg3 Na4 Rg4 Bd3 Rg6 Re1 a1B+ Ka2 Bb2 Nac5 Bc3 Re3 Bb4 Qa7 Rg4 Rg5 a4 Na5 Rf1 Bb1 g1Q Ka1 Qg2 Qb7 Ng1 Qa7 Nb8 Ba6 Qh3 Bd3 Na6 Qb7 Rf2 Qb8 Rg2 Qh8 Rc4 Qb2 Rd4 Qe2 Rb7 Qb2 Nc7 Na6 Na8 Qa2 Rc7 Re8 Rgc2 Rb8 R2c6 Rb7 Rc8 Ra7 R6c7 Qh1 Rg8 Qe4 Rg6
1n4r1/N3p2r/1n1qNBQ1/PbB1rr1R/Rq5p/1P3Qb1/1p4nK/2k1B3 w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 h5 d5 cxd5 g6 Nf3 gxh5 Ng1 h4 b3 a4 Qc2 a3 Qb2 axb2 a4 b6 a5 Bf5 Bb5+ Bd7 Ba4 b5 Ke2 bxa4 Ke1 Bc8 Kf1 Kf7 d4 Kf6 g4 c5 Kg2 h5 f4 c4 d6 h3+ Kg3 e3 f5 Kg5 f6 h2 d7 h4+ Kg2 Kf4 f7 c3 d5 a3 g5 c2 d6 a2 g6 Nf6 g7 Rh7 g8Q Ba6 Qg6 Bb5 Bd2 c1Q Nc3 Bg7 f8B Qe1 Nf3 Nd5 Ng5 Nb6 Rg1 Bd4 Bg7 h1R Bf6 Rh3 Rf1+ Rf3 Kh2 Qc7 d8Q Qc5 d7 Qd6 Rc1 a1R Qf8 Ra4 d8B Rc4 Qfg7 Rc5 Ra1 Re5 Qf8 Bc5 Rg1 Rf1 Ne6+ Kf3 Kh1 e2 Ra4 Be3 Kh2 Bf2 Bf4 Qed2 Rg5 e1N Rh5 Ng2 Bg3 Ke3 Bc7 Qb4 Bd6 Qd5 Qff7 Kd2 Bc5 Kc1 Qf8 Qd6 Qff7 Be3 Be1 Rff5 Qf8 Bf2 Qff7 Bf1 Nb5 Be2 Na7 Bb5 Nc8 Nc6 Na7 Rg8 Qe8 Nb8 Qc6 Rf7 Qe4 Rh7 Qf3 Bg3+
Nb1R1qn1/P1q1R1n1/pNB5/1N2b3/2pn1p2/2Q2K2/1Pr3r1/Q3qkBq w - - 0 1 illegal: No proof kernel
7b/2k1nq1b/1b1pQ2r/b2bR2Q/n2K1P1N/3b1N1N/pP1Rp3/B2r3B w - - 0 1 illegal: Other
1Q2b1R1/3nKP2/5pQn/6Pp/1b2bp2/R3Q1b1/B1N1Nb2/1b1Bqrrk w - - 0 1 illegal: No proof kernel
1rrqbQ1B/1k2qn2/3np3/1n2nBn1/3RR1N1/q4P2/1P1pp1R1/2N1KQ2 w - - 0 1 legal: proof: c4 c5 d4 cxd4 h4 g5 e4 gxh4 a3 f5 c5 fxe4 c6 Bh6 c7 b5 Qa4 Bb7 c8Q bxa4 Qc2 Bc8 Qd1 Bf4 Qd2 Bd6 Qd1 Bb4+ axb4 Ba6 Be3 Bb7 Bc1 Bc8 g4 a5 f3 d5 b5 Kd7 g5 Kc7 g6 h5 b6+ Kb7 g7 e6 Bg5 e3 Bb5 e2 Kd2 h3 Bh6 h4 Bg5 h2 Qe1 d3 Qg3 a3 Qf4 d4 Qe3 a2 Bf4 a4 Bg3 a3 Qe4+ Nc6 Qf4 Rb8 Qf6 Nh6 g8R Bd7 Qf8 Be8 Ba4 Nf7 Nh3 Nce5 Nf4 h3 Re1 h1N Ng6 h2 Nc3 Nf2 Bc2 h1N Red1 Ne4+ Ke1 Neg5 Rac1 a1Q Na2 Nf2 Qd6 Nd7 Ne5 Nfe4 Ng4 Nde5 Bb1 Rc8 Rc4 Rb8 Nc1 a2 Qf8 Ned6 Qh6 Rc8 Qh1 Rb8 Qf1 d2+ Kf2 Qe7 Bf5 Qb1 Rb4 a1Q Rg7 Qa3 Bf4 Nc6 Be5 Qbd3 Rg6 Rf8 Bh8 Nce5 Rc4 Qdc3 Ra4 Qcc7 Rg7 Qcd8 Rb4 Kc6 b7 Rc8 b8Q d3 Rd4 Rg8 Rh7 Rf8 Rh4 Rg8 Ne3 Rf8 Rhe4 Rg8 Ng4 Rf8 Re1 d1N+ Kg3 Nc3 Kf2 Ncb5 Rd1 Rg8 Ke1 Ndc4 Qd6+ Kb7 Qc5 Qf6 Qf8 Qfe7 Nf6 Ncd6 Ng4 Rb8 Qg7 Ka8 Kd2 Bd7 Qh1 Qc7 Rg1 Kb7 Rg2 Rgc8 Qf1 Be8 Ke1 Qcd8 Qf8 d2+
1R1B2B1/Q3n2Q/rPbR2N1/1q3kN1/1PK4n/1r3pqR/n2r2pp/1n3n2 w - - 0 1 illegal: No proof kernel
2b2b2/r4pB1/1r1PRPp1/1r3r2/3N3B/3p1bnK/q2rQQ2/1RqQ2Nk w - - 0 1 legal: proof: g4 a5 b4 axb4 d4 c5 g5 cxd4 a3 d3 Bg2 d2+ Kf1 h6 Bh3 hxg5 Kg2 g4 Kg3 Nf6 Bf1 Ng8 Kg2 Qc7 Nf3 Qb6 Ng1 Qd8 e3 d5 Bc4 Nc6 Ba2 b3 Kf1 bxa2 e4 d4 Nc3 Nb4 Nb1 Nd5 exd5 Qb6 Ne2 Qc7 Ng1 Qd8 Kg2 Kd7 h4 Kd6 c4 Ke5 f4+ Ke4 f5 b5 c5 e5 a4 g3 f6 b4 a5 d3 a6 g6 c6 b3 h5 b2 a7 Rb8 a8Q Qa5 h6 Ne7 d6 Nf5 h7 Rb6 Kh3 g2 Na3 b1R Bb2 Ng3+ Kh4 Qa6 Bd4 R1b5 Ne2 Kf3 c7+ e4 Bf2 g1R Qa7 Kg2 Rb1 a1R Nc2 e3 Ncd4 Rf1 Ng1 e2 Rh3 e1Q Qe2 Be6 c8Q d1B Qc1 Qa2 Qcc2 Bc8 Qca4 Ne4 Re3 Ng3 Re6 Kh1 Kh3 Qed2 Be1 Qc1 Qac2 Rff5 Bf2 Rg8 h8B Rb2 Qb3 Rd2 Bg7 Rbb5 Qe4+ Bf3 Qd1 Rb6 Qee2 Rbb5 Be3 Rb6 Bg5 Rh8+ Bh4 Rhh5 Qc7 Rfb5 Qcc2 Rhf5 Qc5 Qd5 Qcc2 Ra7 Qf2 Qc4 Qde2 Qd5 Qcd1 Qa2
3b4/RBbp1P2/Q2bB2N/1R1n1b2/1P1n1b1k/pq6/K2Bpq1N/2rQ3n w - - 0 1 legal: proof: d4 b5 e4 f5 g4 fxe4 h4 g5 a4 bxa4 d5 a5 d6 h5 Be3 cxd6 Rh3 d5 Rh1 d4 Bd2 Ra6 Bc1 Rg6 Nf3 hxg4 Ng1 g3 Qe2 g4 Qd1 Rg5 hxg5 Rh3 Be2 Rh7 Bf1 Rh8 Kd2 Kf7 f4 Kg6 c4 e5 Kc2 a3 Kb3 d3 c5 e3 c6 a4+ Ka2 g2 b4 e2 c7 e1B Qd2 e4 Qd1 e3 Qd2 e2 Nf3 g1B Rh7 g3 Rg7+ Kh5 f5 g2 f6 Nc6 g6 Bd6 Qc2 d2 Ng5 d1N Ne6 Ba6 c8Q Beg3 Qc3 Nf2 Qb7 B1h2 Qc4 g1Q Ng5 Nh1 Qd3 Bgf4 Bg2 Nge7 Qd1 Kh4 Nf7 Qf2 Bd2 Nd4 Nh6 Bd3 Qa6 Bf5 Bb7 Nd5 Rh7 Qe8 g7 Qee3 g8B Qc3 Bf7 Rc8 Be6 Qh3 f7 Rc1 Rg7 Bc7 Rg2 Bfd6 Rg5 Bhf4 Be1 Qf3 Nd2 Qh3 Nf1 Qhg3 Rb1 Qd3 Nh2 Qb3+ Ka1 a2 Bd2 Qd3 Kb2 a1B+ Ka2 Qh3 Rb2 a3 Rc2 Qhe3 Rc5 Bb2 Rg8 Bc3 Ra8 Bd8 Ra7 B6c7 Be1 Bd2 Rb5 Bfd6 N2g4 Qd3 Nh2 B2f4 Bd2 Qb3+
q6k/Pb3Rb1/3rqr1p/1r2r3/1pn1K1pP/4NQrB/4b1N1/NRB2Q2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 Qd3 Nc6 Qd2 Nce7 Qd3 exf4 Qd1 f3 Nc3 f4 Nb1 Nf5 gxf5 Ra6 Kd2 Ra3 Ke1 Ra8 Kf2 Kf7 e4 d5 a4 g5 h4 Kg7 c4 b5 c5 b3 c6 h6 a5 b2 c7 g4 a6 b4 e5 d3 e6 d4 e7 d2 e8Q d3 Ra5 Ne7 Nh3 Nc6 Qc2 d1R Qe6 d2 Qcc4 Ne5 Rb5 Bb7 Na3 b1Q c8N Qb3 f6+ Kh7 f7 Bg7 Qcc6 Nc4 f8Q Rb8 Qff7 Rf8 a7 Kh8 Ne7 Qc8 Qff5 Rf6 Qee5 Rd6 Bg2 Rg1 Nc2 d1R Na1 R1d5 Qff6 Qd8 Nf5 Qe8 Bf1 Rg3 Ne3 Qe6 Qa6 Qa4 Rc5 Qae8 Rc7 Qc6 Rf7 Qce8 Ke1 f2+ Ke2 Qf8 Bg2 f1B+ Kf2 f3 Nf4 Qfc8 Bh3 Be2 Nfg2 Qc6 Ba3 Qce8 Rb1 Q8c8 Bc1 Qg8 Kg1 f2+ Kh2 f1R Qf3 Nb2 Qd3 Nc4 Qd1 Rf2 Qf1 Qge8 Qfe4 Rf6 Qef3 Bc8 Kg1 Rbb5 Kf2 Bb7 Nec2 Na3 Ke3 Qa8 Ke4 Nc4 Nce3 Rxe5#
2BRN3/P1R2p1K/1R1n1q2/3kN2p/4r1pr/r1Pq1QnQ/2bBn2n/5n2 w - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Ke4 b5 a4 d5+ Kf4 g2 e4 b3 a5 d3 g6 b2 a6 b4 c3 b3 e5 d2 g7 d4 Ra2 d3 Na3 b1N Nc4 b2 Ra4 Nh6 g8R Qf6+ Ke4 Nf5 Ne2 g1N Nd6 Na3 Rc4 b1N Rd8 Nc6 Kf4 Ncd4 Rc7 Ngf3 Ng1 Nh2 Nf3 Kd5 e6 Nab5 e7 h5 Qe2 d1Q e8Q Nd2 Q8e3 Re8 Qg2 Re5 Ne8+ Nbd6 Qg3 Qc2 Qe2 Re3 Ne5 Bd7 Rg1 Ba4 Qh4 Rh3 Qg3 Rh4 Qh3 Qd1 Qee3 Bc2 Qef3+ Ne4 Be3 d2 Bb5 Qe2 Rb1 d1R Bd7 Qd3 Bd2 Re1 Bc8 Re2 Rb6 Re3 Qe2 Neg3 Qf2 Ngf1 Qfg3 Qe6 Kg5 Re4 Qf4 N5g3 Qf3 Qf5+ Kh6 Qf6+ Kh7 Nde2 a7 Rb8 Ra6 Rb3 Rb6 Ra3
5qr1/qp3n1Q/2P3R1/2N2nr1/pr1qq2p/2PBN1BK/4nR1Q/k5bQ w - - 0 1 legal: proof: b4 e5 f4 exf4 a4 g5 h4 gxh4 d3 d6 a5 Be6 b5 Bc4 b6 cxb6 dxc4 bxa5 Na3 a4 Nb1 a3 Kf2 Kd7 g4 Ke6 Kg2 Ke5 e4 a5 c5 h5 c6 f5 g5 h3+ Kh2 h4 g6 a2 g7 d5 Qe2 Kd4 e5 f3 e6 f4 e7 f2 e8Q f3 Q8e7 Nh6 g8Q Nd7 Qa6 Ne5 Qef7 Bc5 Qfg6 Nf5 Bg2 f1Q Q8g7 f2 Ba3 Rg8 Qc7 Nf7 Qe6 Rg5 Nd2 Kc3 Be4 d4 Qh6 d3 Ngf3 Qd4 Rg1 Rag8 Nc4 d2 Nfe5 d1R Ne3 Rb1 Bd3 Rb4 Nd7 a4 Re1 a1Q Re2 Qfb1 Rg4 f1Q Qh7 Qaa2 Rd2 Qac4 Qa7 Qa6 Rf2 Qbe1 Qab8 Qa7 Bc1 Bb6 Nc5 Qee2 Bd2+ Kb2 c3 Ka1 Be1 Qf3 Qg3 Qfd5 Qg1 Q5e4 Rb2 Qff3 Rf2 Qff4+ Rg3 Qfd6 Qh1 Qf8 Kg1 h2+ Kf1 Qe6 Kg2 Qee7 Kh3 Qee4 Qg1 h1N Rgg2 Qe6 Qbh2 Nhg3 Qgh1 Ne2 Rg4 Qee4 Rg1 Rh5 Rg6 Rg5 Rf1 Kb2 Bg3 Ka2 Rf2 Kb2 Qf3 Ka1 Qfh1+ Ka2 Ng2 Qc8 Rf4 Qdd5 Nb3 Bg1 Nc5 Qdd4 Rf2 Qf8 Ne3 Ka1
nQN1qbK1/1P3qnQ/N3R3/1R2p1k1/qq6/p6P/2brB1qp/1q2BN2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 h4 g5 a4 gxh4 f4 b5 e5 bxa4 e6 h3 Qe2 h2 Qd1 fxe6 Bd3 e5 Be2 e4 Ba6 h5 Bd2 Rh7 Bb7 a5 Na3 Ra6 Bc1 h4 Nh3 Rh8 Nb1 Rah6 Rf1 h1Q Ng1 h3 Rf3 h2 Ba6 Qc7 Be2 Rh3 gxh3 Qd8 Kd2 Kf7 b4 Kf6 c4 e5 b5 d5 b6 d3 Ke3 d2 f5 a3 c5 a2 b7 a4 c6 a3 c7 Ne7 Qf1 d1Q Nc3 Qb3 Rb1 a1Q Bd2 Qe8 Be1 Kg5 f6 Bf5 c8N Qg2 f7 Na6 Qf2 Bg6 Rf6 Nc7 Re6 Na8 Qf3 Qba2 Rb5 Q1b1 Na4 Qc4 Nc5 d4+ Kd2 d3 Ke3 d2 Na6 d1Q Qf5+ Kh6 Nf3 Qda4 Nd2 Qca2 Qf2 Kg5 Nf1 Rh4 Qg1 Rf4 Qh1 Rf2 Qg1 Ng8 Qh1 Nf6 Qg1 Nh5 Qh1 Bd6 f8Q Ng7 Qh8 Qd5 Qh7 Bf8 Qg1 Rf7 Qf2 Rd7 Qf7 Rd8 Qc7 Qdd7 Qd6 Qdf7 Qb8 Rd2 Bd1 Rf2 Be2 Bf5 Kd2 e3+ Kc3 Qad1 Kc4 Bc2 Bh5 Rd2 Be2 Rd6 Kc5 Rd2+ Re7 Qa1 Bd3 Qg8 Kd6 Qdg4 Bf2 e2 Bg3 e1Q Bf2 Qee4 Be1 Re2 Bc4 Qb1 Bd3 Qgb3 Bc4 Nf5+ Ke6 Qbf3 Bd3 Qa4 Bc4 Rd2 Be2 Qec6+ Kf7 Ng7+ Kg8 Qe8 Re6 Qgb4 Rc6 Qf6 Re6 Qff7+
1R1R4/Q1p1r1r1/1Pp5/3n4/1nkp1P1b/1rB2r1N/3B1QBK/2rrbbN1 w - - 0 1 legal: proof: c4 e5 g4 g5 h4 b5 a4 bxa4 d4 f5 c5 fxg4 d5 g3 c6 dxc6 Qd2 g4 Qd4 Qg5 hxg5 exd4 e4 Kd7 f4 Kd6 b4 h5 g6 a5 b5 Kc5 b6 g2 Kf2 a3 Kg3 a2 d6 a4 d7 a3 d8B h4+ Kh2 h3 g7 Na6 e5 Ne7 g8Q Nd5 e6 Rh7 e7 Nab4 e8Q Ba6 Bb5 Re7 Ne2 g1B+ Kg3 h2 Bd2 Bf2+ Kg2 g3 Nbc3 Be1 Nd1 Bh6 Ng1 Bg5 Bf1 Bh4 Nf2 Bd3 Qgg6 Kc4 Nfh3 Ra5 Qg4 Rb5 Qf3 Be2 Qf2 Bd3 Rb1 a1R Rb3 a2 Ra3 Rd1 Ra8 a1R Rb8 Rac1 Qf8 Re8 Be7 Be2 Bc5 Re7 Qc8 Rc3 Qb7 Rf3 Qa7 Rc1 Ng5 Bd3 Kh3 Be2 Bg2 Bf1 Bd6 Ra5 Bc5 Raa3 Bd6 Rab3 Rd8 Na2 B6b4 Rd1 Bbc3 Nab4 Rb8 Rc1 Ne4 Bg5 Ne2 Bf6 Kg4 Bg5 Bh3 g2 Rg1 Bf6 Ng5 h1R Ng3 Bd3 Ne2 Rh2 Rh1 g1R+ Bg2 Rhh7 Rh5 Rhg7 Rhh8 Rf1 Ng1 Be2 Rhd8 Bd3 Qe2 Bg3 Kh3 Rfd1 Qf1 Be1+ Kh2 Be2 N5h3 Bfh4 Qf2 Bf1
rqr3Qn/b1QB1P1p/nN5k/nK5r/pR4B1/R1q5/1rQ2pPn/6N1 w - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 b5 a4 bxa4 d5 g5 h3 Ba6 f5 Be2 d6 Bg4 Bf4 gxf4 hxg4 cxd6 Kd2 d5 Ke1 d4 Kd2 Kf7 c4 Kg7 b4 e5 c5 d5 c6 a5 g5 d3 Kc3 d4+ Kc4 a3 c7 e3 c8B a2 b5 d2 b6 f3 g6 e4 b7 d3 Ne2 f2 Rh5 a4 Be6 Ne7 Nbc3 Na6 Rc1 a1N b8Q Nb3 Nb5 Na5+ Kc3 Qd6 Qb6 Qb8 Rg5 Kh6 g7 Ng6 g8Q Bc5 Qbd8 Ba7 Ng1 e2 f6 e1Q f7 e3 Rb1 e2 Qc2 Qc1 Bg4 d1R Ra1 e1N Ra3 d2 Qc7 Nf3 Nd6 Nh2 Nc8 Qcb2+ Kd3 Rb1 Rb5 Qg7 Rb4 Rb2 Nb6 d1R+ Ke2 Re1+ Kd3 Re5 Kc3 Qf6 Bb5 Qf3+ Kd4 Rh5 Bbd7 Qh3 Bgf5 Qc3+ Kd5 Nc4 Kc6 Na5+ Kb5 Nf4 Qg4 Ng6 Qgg3 Re8 Qg4 Nh8 Qg8 Rh4 Bfe6 Rc8 Bg4 Rh5+
1Q2Nk2/1Bp3qb/q1pn1p1N/R1n1nn1P/K2Q4/N1B3P1/1b2rb2/2R1b3 w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 a5 b4 axb4 c5 h5 c6 dxc6 Kd2 hxg4 Ke1 g3 Bg5 g2 Bh6 Bg4 Bc1 Bc8 Nf3 g1B Qa4 g6 Qd1 g5 Na3 b5 Qa4 g4 Qc2 g3 Nb1 g2 Qd1 Ra3 Nfd2 Rg3 fxg3 Na6 Nf3 Nb8 Kd2 f6 Kc2 d3+ Kb3 d2 h4 Qe7 e4 Nh6 a4 Na6 e5 Nc5+ Kb2 b3 Ka3 b4+ Kb2 Nf5 a5 Bd4+ Nc3 g1B e6 Nd6 a6 Bgf2 a7 Qg7 e7 Bf5 h5 Bh7 a8Q+ Kf7 Qc2 d1N+ Kb1 b2 Ka2 b1N e8N Kg8 Qca4 Na3 Nb5 Nac4 Nh2 Bb2 Qb8 Nde3 Bd2 Ne5 Na3 Nef5 Ng4 Be1 Ba6 b3+ Kb1 Be7 Bc3 Kf8 Bb7 Bf2 Nh2 Nf3 Re1 Nd3 Bd4 Nb5 Rc1 Bc3 Nc2 b2 Ka2 Ba3 Kb3 b1Q+ Kc4 Bab2 Kb3 Bce1 Bc3 Nbd6 Qd4 Kf7 Ng4 Nc5+ Kb4 Rg8 Nh6+ Ke7 Ka5 Qa2+ Kb4 Qa8 Ra5 Qa6 Na3 Rh8 Rc2 Rf8 Rc1 Rf7 Qa8 Kf8 Qb8 Re7 Qa8 Re2 Qb8 Ne6 Kb3 Ne5 Ka4 Nc5+
K1NNqN2/1RB1R1n1/qpr1r1Pb/2n5/3B2pQ/1P2Q1p1/5b1p/n1b2k2 w - - 0 1 legal: proof: c4 a5 g4 d5 h4 g5 d4 f5 h5 a4 b3 a3 Qd2 Bd7 Qb2 axb2 Bg2 dxc4 d5 Be6 d6 Bf7 Bf3 fxg4 Bd5 Bg6 hxg6 e6 Be3 exd5 Bd2 Ne7 Bc1 Ng8 Kd2 Kd7 Kc3 Ke6 Kb4 Kf5 Kc5 Ke4 a4 h5 f4 h4 f5 c3 a5 h3 f6 d4 f7 g3 e3 Kd3 e4 h2 e5 b6+ Kd5 c5 d7 c4 e6 c2 e7 c3 e8Q g4 a6 Bc5 f8N Nh6 a7 Nf5 Na3 b1Q Qe6 Na6 Kc6 Qa2 Kb7 Qe8 d8B Rc8 a8Q Rc6 Nb5 Ng7 Bb2 c1B Nf3 c2 Re1 Bh6 Nd6 c1B Ne5+ Kd2 Qac8 d3 Ka8 Bf2 Bd4 Qa5 Nef7 Nc5+ Qa6 Qa3 Qa7 Qa6 Nc8 Rh7 Re3 Kd1 Re4 d2 Bc7 Rh8 Nd8 Rg8 Be3 Ke1 Bd4+ Kf1 Qe7 d1N Qh4 Ne3 Re7 Nc2 Ra5 Qb5 Qb7 Qe2 Ra7 Na1 Qa6 Rh8 Qd3 Rg8 Qe3 Qd3 Nfe6 Rf8 Rb7 Rf6 Nf8 Rfe6 Na7 Qe2 Nc8 Qa6+
4bb2/1R3Pp1/1p1q1prQ/q1Q1r1N1/B1N1p3/2qn1QPK/k2B4/3b2Rn w - - 0 1 legal: proof: c4 h5 b4 d5 cxd5 a5 g3 axb4 Qc2 h4 Qe4 h3 Qf3 Ra7 Qg2 Ra8 e4 hxg2 f4 f6 e5 fxe5 f5 e4 f6 Qd7 Kf2 Qd6 Ke1 Qd8 a4 Qd6 f7+ Kd7 Ra3 Qf6 Rf3 Qd6 Rf6 exf6 Be2 Qe7 Bf1 Qd8 Kf2 Kd6 d4 c5 h4 b3 a5 c4 a6 c3 h5 b6 a7 c2 h6 b2 h7 Bd7 Bd2 c1Q Na3 b1B Nh3 Qe7 Rg1 Bc2 Bb5 Bd1 Ng5 Na6 Ba4 Re8 a8R Qc3 Ra7 Nh6 Rc7 Nc5 Rb7 Rg8 h8Q Ng4+ Ke1 Nf2 Qh6 Bc2 Ke2 Ncd3 Ke3 Qe5 Ke2 Nh1 Nc4+ Ke7 Ke3 Rh8 Ke2 Qa5 Ke3 Bd1 d6+ Kd8 d5 Qec3 Rf1 Re7 Rg1 Be8 d7 Re5 Qh5 Ke7 Qf3 Nc1+ Kf4 Rh6 Kg4 Rg6 Kh3 Nd3 Nh7 Qa7 d6+ Ke6 d8Q Kd5 d7 Qaa5 Ng5 Kc5 Qc7+ Kb4 Nb2 Ka3 d8Q Ka2 Qc5 Qcb4 Nc4 Qc3 Rf1 g1Q Qdd6 Qe3 Rg1 Qa3 Qdd4 Qe1 Qde3 Q3c3 Qef4 Qe3 Qh4 Qed4 Qh6 Qd6
2K5/4nrr1/k5bB/Bb2b2R/Np1PnRNp/qP1Q4/Rp4np/5Q1n w - - 0 1 legal: proof: f4 d5 h4 c5 c4 g5 cxd5 gxh4 e3 a5 b3 e5 Ne2 exf4 Na3 c4 Nc2 a4 Ng1 c3 Na3 c2 Nb5 a3 Qh5 Ke7 Qe5+ Kd7 Qb2 axb2 Be2 Ke8 Bd1 cxd1B Na3 Bc2 Nf3 Bg6 Ng1 Bb1 Ke2 Kd7 Kf3 Kc7 g4 Kb6 d4 h5 g5 f5 d6 h3 g6 h2 e4 Be6 e5 Bc8 e6 Qd7 g7 Bc2 e7 Bb1 e8Q Qe7 d7 Ka6 d8B b5 Qg6+ Nf6 g8R Ra7 Nc2 Nc6 a4 Bd7 a5 Bg7 Ne2 Ne4 Ra2 Rh7 Rf8 Qa3 Ne3 b4 Ng4 Be5 Nc3 Rg7 Na4 Bd3 Qf7 Ne7 Be3 Bb1 Qc4+ Bb5 Qd3 Nc6 Bd2 Raf7 Bc7 Ne7 Qf1 Ka7 a6 B1d3 Ba5 h4 Rh8 Bb1 Rh5 Bc2 Qd3 Bb1 Rf1 Bc2 Kg2 f3+ Kh3 f2 Bg5 f4 Bh6 Kb8 a7+ Kb7 Nb6 f3 a8Q+ Kc7 Qh8 Kb7 Na4 Ka6 Qf8 Bb1 Re1 f1N Re3 f2 Rf3 Rf6 Rf4 Ne3 Qf7 f1N Qfc4 Nfd2 Qc1 Rf5 Qcf1 Rff7 Qc3 Ng2 Nf6 Ng5+ Kg4 Bh7 Qcd3 Ng6 Kf5 Nh3 Ke6 Ne7 Ng4 Bg6 Re4 Nf2 Rf4 Bf6 Kd6 Nh1 Kc7 Ne4 Kd8 Bc4 Kd7 Bb5+ Kc7 Be5+ Kd8 Nf5 Kc8 Ne7+
Q1Kn2qN/n1B5/1R1NPr1n/1pR3pR/BQpk4/3p1bn1/7P/1b1q3r w - - 0 1 legal: proof: c4 c5 b4 e5 d4 h5 g4 hxg4 f4 exf4 b5 a6 Ba3 axb5 Bc1 bxc4 Be3 c3 Bd2 c4 Bc1 Bc5 dxc5 Rh3 Qd3 Rh6 Qd1 Rh8 Kf2 Ke7 e4 Kf6 a4 Ke5 c6 d5 a5 b5 c7 g5 a6 f5 a7 f3 Ke3 f2 Qd3 g3 Ra3 c2 Be2 f1B Qd2 g2 Nc3 Rh6 Nh3 g1N Nf4 Nh3 Bd1 Bd3 Rf1 Bb7 c8R Rf6 Rc5 Nc6 Rb3 Nh6 Ng6+ Ke6 e5 d4+ Kf3 f4 Nh8 Qg8 Ne4 Kf5 Bb2 c1Q Qb4 Bb1 Nd6+ Ke6 Bc2 Qd1+ Ke4 f3 Rf2 Raf8 a8Q Nf4 Rd3 Re8 Ba4 Rd8 Re2 f2 Re3 f1N Rh3 Rd7 Rh5 Rdf7 Bc2 Rd7 Re3 d3 Ba4 Rdf7 Ba3 Na7+ Kd4 Bf3 Bc1 Ng3 Re1 Nd5 Bf4 Nc7 Re2 Ke7 Re4 Ne6+ Kd5 Nd8 e6 Rf8 Rc6 R8f7 Rb6 Nac6 Kc5 Rf5+ Re5 Kf6 Rb7 Rf8 Kb6 Rf7 Rd5 Re5 Rb8 Re1 Rc5 Rf8 Kc7 Rh1 Kc8 Rf7 Nb7 Rf8 Be5+ Kf5 Bc7+ Ke4 Nd6+ Kd4 Rb7 Rf6 Rb6 Na7+
bQN1Qb1b/K3Rbpk/1b2n3/1P6/Br4p1/2n1qp1q/1P3BpN/B4R2 w - - 0 1 illegal: Other
5QQ1/bBpr2B1/1Rb2PNB/k3r1r1/1qpKp1n1/5R1r/2pNP3/3q3r w - - 0 1 legal: proof: g4 g5 b4 f5 h4 fxg4 b5 a6 Bg2 axb5 Bh3 g3 Bf1 g4 c4 bxc4 Rh2 d5 Qb3 d4 Nf3 Nd7 Ng1 Ne5 Rh1 Nf7 Qc3 Ng5 hxg5 dxc3 d4 Kd7 a4 Kc6 f4 Kb6 g6 e5 g7 h5 f5 c2 Kd2 g2 Kc3 h4 f6 h3 d5 e4 d6 g3 d7 h2 Bg5 Bc5 Bh6 Ra5 Nf3 g1R Bh3 g2 Nh4 Rd1 Ra3 g1R Ng6 Rg5 Nd2 Qf8 d8B Bd7 Rg1 h1R Be7 Bc6 Bc8 Ka6 Rb3 Ba7 Rf1 Rae5 Rf3 Ka5 Rb6 Rh7 Ba3 Qb4+ Kd4 Rh3 Bc1 Rdh1 Ba3 Ne7 g8Q Nd5 Bg7 Ne3 Bc1 Ng4 Ba3 Qb1 Baf8 Qd1 Bh6 Rf7 Bfg7 Bb8 Rb4 b5 Bb7 Rfe7 Rb2 b4 Qf8 b3 Rb1 Kb4 a5 b2 a6 Ka5 a7 Rf7 a8Q+ Ba7+ Kc3 Rfe7 Qg8 Rd7 Qaf8 Kb6 Ra1 b1Q Ra6+ Kb5 Rb6+ Ka4 Nf4 Ka5 Ng6 Bd5 Kd4 Qb4 Qe7 Bc6+ Qd6 Bd5 Qdf8 Bc6+
3k4/NqR2nQ1/5q1Q/Rq1P2p1/Rnp5/B2n2B1/pNn1K1pP/r1b2r2 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 h5 Qb3 f5 Qd1 f3 Bg2 f4 Bh3 Bf5 gxf5 Qd7 Bg4 hxg4 Nc3 Qd6 Nb1 Qd8 e4 a5 d4 g5 b4 c5 d5 g3 e5 f2+ Kd2 f1Q f6 c3+ Kc2 f3 b5 f2 e6 g2 e7 a3 b6 a2 b7 a4 Nh3 a3 Nf4 Qd7 Qd4 Qfb5 Kd1 c4 Ke2 c2 Nd3 Nh6 Nb2 Nf7 Nc3 Nc6 b8B Nb4 Bg3 Qdb7 Rd1 Kd7 e8R f1N Re7+ Kd8 Qe5 Ne3 Rc7 Bc5 Qd4 Rf8 Qh4 Bd6 Qh6 Bf4 Rd2 Q5a6 Nb5 Qac6 Rb1 a1Q Na7 Qcb5 Rd3 a2 Ra3 Rb8 Nd3 Qb2 Ra5 Qd4 Ba3 c1N+ Ke1 Qdb6 Nb2 Ncd3+ Ke2 Nec2 Ra4 Bc1 Ra5 Nfe5 f7 Qf6 Ra4 Re8 f8Q Nf7+ Kd1 Rc8 Qfg7 Re5 Ra5 Rf5 Ke2 Rf1 Re7 Rc6 Rc7 Ra6 Na4 Rb6 Rb3 Nf2 Nb2 Re6+ Re3 Nfd3 Ra4 Re5 Ra5 Ref5 Re6 Rd1 Rea6 Rff1 Ra4 Bf4 R6a5 Ra1 Qhh7 Bd2 Qhh6 Bc1
Q1b3nn/1B1r1R2/3nk1r1/rPq1p1QR/2Np4/3pQ3/q1NnpP2/2B4K w - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 b4 g5 d4 cxd4 Bc4 gxh4 Bf1 b5 c3 bxa4 b5 Bh6 Rh3 Bf4 Rh2 Bd6 Rh1 Bb4 cxb4 Ba6 Qc2 Bb7 Qd1 Bc8 g4 Kf7 g5 a5 b6 e5 b5 d5 b7 h5 g6+ Ke6 g7 e3 Ne2 a3 Rh3 a4 Nd2 a2 Rb1 a1Q Qb3 a3 Nc4 a2 Na5 d3 Qa4 d4 Qc2 Qf8 Nc4 Nc6 b8Q Ra5 Nc3 Rh6 Bb2 Nce7 Qd1 Ng6 Qe2 Qc5 Rf3 h3 Qd1 h2 Qc1 h1R Nd5 h4 Nb4 h3 Qa8 h2 Nc2 Nh8 Rf7 Rg6 Qd2 Rhg1 Bc1 h1N Qe2 R1g4 Bg2 Ng3 Bb7 Ne4 Kf1 Nd6 Qf3 Rh4 Qg3 e2+ Kg2 Rhg4 Kh1 Qb2 Qh3 a1N Qe3 Nb3 Ra1 Nd2 Rb1 Nh6 g8Q Rg7 Qd8 R4g6 Qdg5 Ng8 Ra1 Ra7 Ra6 Qa2 Rb6 Ra5 Rc6 Rf6 Rcc7 Rgg6 Rh7 Rg7 Rf7 Rfg6 Rh5 Rh7 Rf4 Re7 Rf7 Rd7
RR1B1N2/1N4nq/1qbrP2q/3pkr1Q/3p1nK1/3q1pN1/3pPQ2/3B3r w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 d5 c5 d6 c4 Kd2 Bg7 Ke1 Be5 Qd3 cxd3 fxe5 exd6 Bd2 d5 Bc1 d4 Kf2 Ke7 Kf3 Ke6 a4 h5 g4 f5 c4 d5 c5 b5 g5 h3 g6 b3 c6 h2 g7 b2 a5 h4 a6 b4 a7 h3 c7 f4 Nc3 b1Q Ne4 b3 Ng3 b2 Kg4 Rh6 Nf3 Na6 Nh4 f3 Ng6 Bd7 c8N Bc6 Bg5 d2 Nd6 Qb6 Bd8 Nc5 Nb7 Qd3 Ra6 Rb8 a8Q b1Q Ra2 Ne7 g8Q+ Kd7 Qa3 Ne6 Qf7 Ng7 Qc3 Rh5 Ra8 Rf5 Qc1 Rc8 Qe1 Qbc2 Qe8+ Ke6 Qf2 Rc7 Bg2 Rd7 Rb1 h1R Rb5 h2 Bh3 Rd6 Qh8 Qe3 Qh5 Qh6 Rb3 Qd3 Rb4 Kf7 e6+ Kf6 Nf8 Ke5 Qe8 Qh7 Na5 Qb3 Qg2 Qb5 Qf2 Rc1 Qg6 Rf7 Kg5 h1Q Bf5 Q1h6+ Kg4 Rh1 Bc2 Rf5 Bd1 Q5d3 Rbb8 Qb6 Qh5 Ng6 Nb7 Nf4
1b5r/nP1Q4/1BBN2qN/QR3pq1/1Kqr1p2/r2b3k/3Ppp2/4R1rB w - - 0 1 illegal: No possible last move, all moves rejected
q3RrNB/1p1q2pP/1B5p/2n1N1pq/1R3bP1/n1n1kq2/1Q5Q/1N1r1K2 w - - 0 1 illegal: No possible last move
2Rqr3/P2p3q/N4p1R/ppQN1k1r/Q5bb/K4b2/6BP/bNnr3B w - - 0 1 illegal: No proof kernel
3R3b/P1k4r/b1p2B1N/7B/5nrK/2p1Rp1P/bN1Nrnpb/3Qb1Q1 w - - 0 1 legal: proof: f4 b5 e4 d5 g4 h5 b4 hxg4 d4 a5 c4 dxc4 f5 axb4 d5 Ra3 e5 Qd6 exd6 Rf3 Nd2 Rxf5 Nb1 Rf2 a4 Kd8 d7 f5 a5 e5 h3 g5 a6 f4 a7 f3 Bf4 b3 Bh2 c3 Qc1 e4 Qc2 b4 Na3 e3 Rd1 e2 Bg3 b2 Bg2 b1B Qf5 b3 Be5 b2 Bf1 c6 Qg6 g3 Nc4 g4 Nd2 Rh7 Bf6+ Kc7 d8N Na6 Nf7 Nb4 Nh6 Ba2 Qg5 b1R d6+ Kb6 d7 Ne7 Qg8 Bg7 d8Q+ Kb7 Qd4 Ng6 Qgd5 Rh2 Q4c5 g2 Kf2 Rb2 Kg3 Nf4 Kh4 e1B+ Qf2 g3 Bd3 Kc7 Ne2 g1B Nc1 Rb1 Bg6 Bh8 Nd3 Ba6 Nb2 Nbd3 Bh5 Rg2 Qfd4 Bh2 Rf1 Rc1 Qg1 Re2 Rf2 Rc2 Qd4 Re4 Re2 Nf2 Re3 g2 Qa4 Bf7 Ndc4 Bg8 Rd8 Re2 Nd2 Ba2 Qd1 Ree7 Bg6 Reg7 Bh5 Rg4+
n1RbQK2/Q1r2b2/N2p2pB/q1PQr1P1/4p1p1/7q/1bB2kp1/2R2nN1 w - - 0 1 legal: proof: e4 f5 g4 b5 d4 c6 d5 cxd5 a4 dxe4 axb5 e3 b4 h5 g5 f4 Qg4 hxg4 Ra6 Kf7 Rh6 Ke8 Rh3 Ba6 Rf3 Bc8 Rg3 fxg3 Ke2 Kf7 Kd3 Ke6 Ke4 a5 c4 d6 f4 e2 h4 e1B b6 a4 c5 g2 h5 g6 h6 a3 b7 a2 h7 a1Q f5+ Kf7 Kd5 e5 b5 e4 f6 Qa3 b6 Bd7 Bb2 Na6 b8Q Bg7 b7 Ba5 Bd3 Ra7 Qa8 Be8 b8Q Nh6 Bc2 Qh3 Nc3 Nf5 Na2 Ng3 Nb4 Rc7 Qba7 Nf1 Q8b7 Rf8 h8Q Rg8 Kc4 Ke6 f7 Kf5 Kd5 Kf4 Ke6 Ke3 f8R Bf6 Qd5 Kf2 Ba1 Rgg7 Qg8 Rgf7 Bb2 Bh8 Bg7 Rf5 Bh6 Bb2 Qf7 Qa8 Qd7 Bf7+ Ke7 Bb6 Rc8 Re5+ Kf8 Qc6 Ba4 Qb5 Bc2 Qa5 Qe7 Rd7 Qd8 Nc7 Qe8 Na8 Na6 Bd8 Nf3 Ng3 Rc1 Nf1 Ng1 Rc7
2BK4/3PNk1q/R1p1n3/2B1nNb1/1N2n1Q1/1nrprbp1/p1P3p1/R2Q4 w - - 0 1 legal: proof: d4 d5 e4 dxe4 g4 b5 f4 e5 a4 exf4 axb5 h5 Qf3 hxg4 Qd3 exd3 Kf2 g5 h4 a5 b4 f5 b6 a4 d5 g3+ Kf3 c6 d6 g2 b7 a3 h5 Bg7 b5 Be5 b6 Qc7 h6 Qh7 Nc3 Kf7 Na2 Na6 b8Q Ne7 b7 Bf6 Ne2 Re8 Ng3 Nc5 Nb4 Ne6 Be3 Ng6 Bc5 a2 Rh5 Bd7 Qc8 Ra3 b8Q Rc3 Qa7 Be7 Qa3 Bf6 Qc1 Bd8 Qd1 g4+ Kf2 f3 Ke3 f4+ Ke4 f2 Kf5 f3 Be2 Qg8 h7 f1N Rh4 f2 h8N+ Kg7 Rh5 Ne5 Ng6 Kf7 Ne7 Nd2 Rh8 f1N Bf3 Kf8 Kf6 Nb3 Nf5 g3 Bg4 Nfd2 Bh3 Nf4 Rh7 Be6 Rh5 Bd5 Qe6 Bf3 Qc4 Ne2 Qg4 Qh7 Ke6 Ne4 Rh4 Nc4 Kd7 Kf7 Rh5 Ned4 Rg5 Rh8 Rg8 Ne6 Re8 Ba5 Ra8 Bd8 Ra6 Rg8 Ned5 Bg5 Nde7 Rg6 Kc8 Rf6 Kd7 Ne5+ Kc8 Nf8 Kd8 Re6 Ng7 Neg6 Qh5 Ned2 Qh4 Re5 Bc8 Re3 d7 Ne5 Nf5 Ne4 Qg4 Ne6#
8/q3K1b1/1r2Br1k/b1B1N1pP/1pprQ1R1/pQpbQP2/R1r1n3/N7 w - - 0 1 legal: proof: e4 f5 c4 fxe4 g4 h5 c5 hxg4 c6 dxc6 Qc2 c5 Qd1 c4 a4 b5 Qf3 b4 Qd1 Nc6 b3 Qd4 Be2 Qb2 Bd3 Nd4 Bf1 Nb5 axb5 Qxb3 Nc3 Qa2 Nb1 Qb2 b6 c3 Ke2 Kf7 Ke3 Kg6 Kd4 c5+ Ke5 a5 h4 e3 d4 c4 f3 g3 d5 a4 h5+ Kh6 d6 g5 b7 a3 b8Q e2 d7 e1R+ Be3 g2 Ke6 Nf6 Qd2 Ne4 Bc5 Ng3+ Be3 Re2 Qe1 Bg7 Qe5 Rd8 Ra2 Rb8 Nh3 g1B Nf2 Qb3 Qd2 Qa4 Nd3 Qa7 Rh4 Bh2 Qb2 Rc2 Nd2 Bb7 Qf4 Be4 Bh3 Rb7 Kf7 e5 Be6 Bh7 Qd4 e4 Ke7 Rf8 Qc5 Rf6 Nb3 Rb5 Bg1 e3 Na1 e2 Rg4 e1R Qb3 Ne2 Be3 Bg1 Ne5 Rd1 Qc6 Bf5 Qb7 Bg6 d8Q Rd6 Qb6 Bd3 Qd4 Rdd5 Qf4 Rd6 Bb6 Bc5 Qe3 Rd4+ Ke8 Bd6 Bc5 Bc7 Qbe4 Rb8+ Ke7 Ba5+ Bd7 Qa8 Bf5 Rbb6 Be6 Qa7+
1r1Rqn2/1q6/3rrrB1/1PKN4/2RN1b2/1P5Q/2b1qrn1/BrnkrRQ1 w - - 0 1 illegal: Other
1N1QB3/4bnbn/1P1q2k1/2qrq1B1/1R1Q1n2/7q/qRqP2QK/1N1brq2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 b4 a5 e4 f5 g4 Kf7 Kg2 c5 g5 a3 b5 a4 b6 a2 e5 c3 e6+ Kg6 e7 f3+ Kh3 f4+ Kh2 h3 Bb5 c2 Qe2 h4 Na3 f2 Qe1 f1Q Bb2 c1N Bg7 c4 Rb1 a1Q Bh6 c3 Nf3 c2 Rg1 Qa2 Rb3 Qc4 Qf2 Nf6 Bd7 Ne2 Be6 c1Q Rc3 Qd6 Qg3 Ra5 Nb5 a3 Rg2 Nbd7 Qg4 Ne5 e8Q+ Nf7 Qd7 Qcc5 Qe7 Nh7 Qg3 Qcc2 Qb7 Be7 Rb3 Re8 Nfd4 f3 Qa6 f2 Nc6 f1Q Nc3 Nf4 Nb8 Bb7 Bd7 Bf3 Ba4 Bd1 Rb2 Qce5 Rf2 Rd5 Nb1 Qb5 Qg2 Qbc5 Kh1 h2 Qc4 Qa1 Qd4 a2 Rb4 Qab2 Rf3 a1B Rfb3 Qa2 Bb5 Bc3 Rb2 Qee4 Qd3 Bg7 Qd4 Qee5 Nd7 Ra8 Nb8 Ra3 Be8 Re3 Qg1 Ne6 Kg2 Re1 Kh3 h1Q+ Qh2 Qhe4 Qg2 Nf4+ Kh2 h3 Nc3 Q4f5 Nb1 Kh5 g6 Qfd3 Bg5 Qf1 Qh1 Bh8 g7 Kg6 g8Q+ Bg7 Kg3 h2 Qg2 h1Q Qh8 Qfe2 Qf8 Qhf1 Kh2 Qg4 Bd7 Nh8 Qd8 Nf7 Be8 Qh3+
2Rb1Bb1/3P1B1K/2BbbP1Q/1NRQ1r2/1N2rr1b/q6b/1b1nknq1/7q w - - 0 1 illegal: No possible last move
nR1rq2n/1rQRb1KP/3q4/4Nk2/qB3bn1/3r3P/qN2bqq1/1BQ2R2 w - - 0 1 illegal: Other
1kbK1B1b/1q3q2/1Q3Qr1/2n2NRB/nPP2nrR/1q2nNrr/2Q5/1n5r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 Kd7 g4 Kc7 e4 f5 b4 a5 g5 h3 e5 h2 e6 f3 g6 f2 e7 a3 e8Q f4 g7 f3 Ne2 h4 Rg1 h1R Qe6 a4 Qb3 h3 Qg4 h2 Qg2 a2 Qg4 a3 Qh4 Qe8 Nec3 Nf6 g8Q Nh5 Rg6 Ra6 Nd1 Nd7 Ne3 Nc5+ Kd2 d3 Kc3 d4+ Kd2 Nf4 Qh5 Bg7 Rg4 Rg6 Nf5 Qf7 Qb2 Kb8 Qg5 Rh3 Qh5 Bh8 Be2 f1N+ Ke1 d2+ Kf2 d1Q Qgh7 d3 Q5h6 d2 Qbg7 Ne3 Qf6 Qb3 Rg5 d1R Nd2 Rdg1 Bb2 Rg4 Bd4 Na4 Bc5 Rhg1 Bf8 R1g3 Rh1 a1N Qb6+ Qb7 Q6g7 a2 Qgf6 Nac2 Bd1 Na3 Be2 Ned5 Bd1 Ndc3 Ke3 a1Q Kd4 f2 Ke5 f1N Kd6 Nab1 Nf3 Nc5 Be2 Qa7 Bd1 Bd7 Ke7 N3a4 Kd8 Ne3 Ne1 Rgh4 Bh5 Rhg4 Nf3 Be6 Qhe7 Bd7 Qe4 Bc8 Qc2 Rg2 Rd1 h1R Rd4 R4g3 Qbe6 Qf7 Qb6+ Qab7 Re4 Nfd3 Rh4 Nf4 Ng7 Rg4 Nf5 R2g3
3nr1q1/1nb1P3/QNN1rrBb/3r4/B1Rb1R1Q/2q1Prb1/n1b5/BK2k3 w - - 0 1 illegal: Other
2N1B2R/QK1QP3/P3n3/nn1b3b/3n1brb/B1r1N2k/N6q/nR1r1qb1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 b5 a4 g5 c4 f3 h4 b3 a5 d3 h5 g3 e4+ Kg4 h6 f5 h7 d2 e5 g2 c5 b2 c6 b4 e6 f4 e7 b3 c7 Nf6+ Kc5 d5 Kb6 d4 a6 d3 Rh3 Bh6 Ne2 f2 Re3 f3 Re4+ Kh3 Rd4 g4 Ra5 g3 Rb5 Nh5 Ra5 Nf4 Na3 b1N Rd6 b2 Rg6 Nc3 Re5 b1N Rc6 Be6 Nc4 Na3 Qa4 d1B Nb2 d2 Nd4 Nc2 Bb5 f1N Re3 f2 Re4 Qd6 c8N Bd5 Re6 Na1 Kb7 Ne3 Nb3 Nec2 Bc4 Rg8 h8Q f1Q Qe5 Bh5 Nb6 d1R Qd4 Rg4 Bb5 Bg5 Rh6 Ne6 Qc5 Bh4 N2c4 Ncd4 Ne3 Qdf4 Rh7 Q4f2 Rh8 Q2g1 Ba3 Qh2 Nc8 Ra7+ Kb6 Rc7 Na7 Rc8 Rd6 Rc7 Be8 Rc8 Qd7 Rc7 Rc6 Ncb5 Nc1 Rc8 Qb4 Rc7 Rc2 Rc3 Na2 Nbc6 Rb2 g1B Rb1 Bf2 Qc4 g2 Qc5 g1B Nc8 Bfg3 Kb7 Bf4 Qa7 Na5+
1q3k2/qnn1r2R/4qb1r/3B1Q1b/1N1BqRN1/2b1PP2/r3QK2/2nQr2r w - - 0 1 illegal: No proof kernel
nb2q1q1/1BQ5/3b1n1R/r1N1b3/2rRrb2/B1QP1qk1/K1bQPN2/3r3n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 h4 Kd6 h5 Ke5 h6 g5 h7 b5 a5 f5 a6 c5 a7 b3 Ra5 b4 Ra1 c3 Bg2 g3 Bb7 f3 Ra2 Kf4 Ra4 g4 Bb2 f2+ Kf1 c2 Bg2 c1R Bf3 c4 Ra2 c3 Ra5 c2 Ba3 b2 Rh5 b3 Nc3 b1Q Be7 b2 Nb5 Na6 Bh1 Qa2 Be4 b1R Rh6 Qe8 Bd8 Nf6 Rh1 Qg8 Rh4 Nc7 Ra1 Bd6 Kg2 f1Q+ Kh1 g2+ Kh2 Qf3 Rh6 g3+ Kh3 Bd7 Nc3 Ba4 d3 Rb4 Rb1 Rc4 Rb4 Bb3 Qe1 Rd1 Be7 c1B Na4 Bc2 Bb7 Bb2 Kh4 Bbe5 Nc5 Re4 Kh3 Rc8 Rd4 Na8 Na4 Rc4 Nc5 Kg5 Qa5 f4 Qd2 Kf5 Kh4 Bb8 Nh3 g1B Nf2 g2 Bd6 Bh2 Be7 g1B Bd6 Nc7 a8Q Bg3+ Kh3 B1h2 Qaa5 Na8 Qd8 Qe3 Bf8 f3 Qc7 Bd6 Be7 Bge5 Bf8 Bhf4 Be7 Qd5 Bf8 Rg8 h8Q Rg5 Kh4 Qg8 Be7 Ra1 Kh3 Ra5 Qg7 Rg3+ Kh2 Rh3+ Kg1 Rg3+ Kf1 Rg6 Nh3 Kg4 Ke1 Kg3 Bf8 Bb1 Kd1 f2 Qh8 f1N Nf2 Bc2+ Kc1 Qf3 Kb2 Rg5 Be7 Ra1 Bf8 Rd1 Ka2 Be7 Rh7 Kg2 Rh5 Nd7 Na6 B5f6 Rh1 Ng3 Rh6 Nh1 Rd6 Kg3 Qg7 Ba1 Qb2 Nf6 Qbb4 Bae5 Qbc3 Bd4 Rd7 Rb5 Rd6 Bde5 Rd4 Bd8 Be7 Ra5+ Ba3 Be7 Nc5 B7d6
4k3/1q1b1bbb/n2B2B1/2nq3n/R1Q1b1rN/1RPBr3/r1K1Pn1q/2N1Q3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 g4 h5 a4 f5 c3 d5 g5 f3 g6 h3 a5 h2 g7 d3 a6 f4 a7 b3 Ra4 f2 Ra5 b4 Bh3 f1R Qe1 h4 Rc5 d4 Rg5 b2 Kd1 f3 Rh5 d2 Rd5 b3 Rh5 f2 Na3 b1B Bf5 h3 Bh7 b2 Bf5 Nf6 g8Q Bd7 Qg3 Be4 Qe3 b1B Bb2 Bg7 Qh6 Na6 Qh7 Rg8 Rg5 Nh5 Ba1 Qc8 Rg2 Qb7 Rg5 Ba2 Nc2 Bf7 Nf3 Bd3 Rhg1 h1B R5g2 h2 Rg4 Bg2 Nb4 h1Q Rf4 Qh2 Nh4 Bge4 Bg6 Bb1 Rg5 Rh1 Qh6 f1N Bb2 Nfg3 Rb5 Rf1 Qh7 Rf3 Ba3 Rd3 Na2 Re3 Bd6 Bbd3 Bf5 Bb1 Rb3 Bbd3 Bh3 Bb1 Qh8 Bh7 Bg2 Ne4 Nc1 Nec5 Be4 Bd3 Bg6 B3f5 Nd3 Be4 Kc2 d1N Rg4 Nf2 Rf4 Bg2 Nc1 Bgc6 Bd3 Bce4 Rg4 Bf8 Rf4 Rg4 Qf6 Bg7 Qe6+ Kd8 Qd5 Ke8 Qc4 Bf3 Bg6 d3+ Kb1 d2 Kc2 Rb8 a8B d1Q+ Kb1 Qdd5 Kc2 Qc8 Bc6 Ra8 Bb5 Bg2 Qd4 Ra7 Bbd3 Qcb7 Qc4 Bh1 Qb5 Bf3 Ra4 Be4 Qc4 Nc7 Rab4 Ra1 Ra4 N7a6 Rb2 Ra3 Rb3 Ra2+
2rn1rN1/1P6/q1Nr4/1PQ3R1/3KQ3/1qrbQ1nB/1q1Bbbq1/r2Rnk2 w - - 0 1 illegal: Other
6b1/3nR1KQ/nRB1P2B/k1rP2Rb/2r2Nb1/3rn1Q1/1n1qnnb1/1N2b3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb6 Ke5 f5 g4 h5 d4 c5 e4 f3 a4 f4 g5 f2 g6 f3 g7 b3 Nh3 b2 Rg1 c3 Rg2 c2 Be3 c1N Rg3 c4 Rg2 c3 Rg4 c2 Bd2 Ra5+ Bb5 f1R Rg3 f2 Qe1 Bg4 Bf4 Na6 Rg1 Nf6 g8R Ne2 Qd1 c1N Nc3 b1B Qb3 Rd1 Rg2 f1N Bh2 Bb4 Na2 Nd7+ Kd5 Be1 e5 Bh7 e6 Ne3+ Kd6 Rd3 Rg6 Bg8 Nf4 h3 Rg3 h4 Nc3 Rh6 Bg1 h2 Rb1 h1B Rg5 h3 Bc6+ Rb5 Rb2 h2 Nb1 Ka5 d5 Rh4 Qa3 Rc5 Rb6 Bg2 Rf3 Qa8 Ke7 h1N Rg3 Qb8 Rg7 Bh5 R3g5 Nf2 Rf7 Qc7 Ke8 Bg4 Re7 Qe5 Qb3 Qb2 Qc3+ Qb4 Qh8 Qd2 Qh7 Nf6+ Kf8 Nd7+ Kg7 Bh5 Rb3 b5 Rb2 b4 Bh2 b3 Bg3 Kb4 a5 Na2 Bh2 Nac3 Bg3 Ncd1 Bh2 Nc7 a6 Ka5 a7 Na6 a8Q Bg4 Qb8 Bh5 Nh3 Rhc4 Qg3 Bg4 Nf4 Bh5 Rc2 b2 Rc3 Bg4 Rb3 Bh5 Rb6 Bg4 Nc3 b1B Bg1 Bc2 Nb1 Nb2 Bh2 Ra3 Bg1 Bg6 Bh2 Rd3 Bg1 Nc2 Bh2 B6h5 Bg1 Nh1 Be3 Nf2 Rf5 Ne4 Ng6 Bh1 Bh6 Nf2 Rg5 Ne3 Nf4 Bg2
b1n3bK/1r1kB2P/b5Pb/n2B1b1R/n1n2Nr1/1nQ1QN1b/1N5q/1R5r w - - 0 1 illegal: No proof kernel
1rQ1bKn1/rb1NP1Br/rn2q1Q1/6bR/k3n2n/1n4R1/2Nn2Pr/3BN3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 Kd7 Kg4 Kc6+ Kh5 Kb5 e4+ d3 e5 f5 a3 f3 c3 h3 e6 b3 e7 b2 Bd2 f4 Be3 h2 Bf2 d4 Kg5 h5 Kg6 h4 Kf7 h3 Ra2 Qd5+ Ke8 Ra6 Be3 f2 Bc1 f3 Qc2 Nd7 Ra1 Nb6 Qd2 Qe6 c4+ Ka4 c5 Bh6 c6 Rh7 c7 Bg5 Qc3 d2 Qe3 d1B Ne2 d3 Qe5 d2 Rg1 h1N Qg7 h2 Nf4 Ng3 Qc3 h1R Qf6 Ne4 Qh6 Rh2 Be2 f1N Kf8 f2 Nd3 Ne3 Rh1 f1N Qg6 Nf5 Ne1 Nh4 Ra2 Bd7 c8Q Be8 Bh5 Bb3 Bf3 Bd5 Bd1+ Ka5 a4 Bdc6 Bh5 d1R Ra3 Rd7 Rg3 Nfd2 Bd1 Nb3 Na3 b1N Bb2 N1d2 Bg7 Kb4 a5 Ka4 Be2 Nbc4 Bf3 b5 Nac2 b4 Bg4 Nb6 Bd1 Ra8 a6 Bb7 a7 Rb8 a8N Rd6 Nc7 Ra8 Rf1 Ra7 Rf5 Na8 Bh6 Na1 Re5 b3 Rc5 b2 Rcc3 b1R Rge3 Nhf3 Na6 Bbc6 Bg7 Rb8 Rcd3 Nab3 Nc5+ Ka5 Rc3 Bb7 Nd7 Rda6 Red3 Ka4 Rc6 Nh4 Rc5 Bh6 Rh5 Bg5 Rg3 Nb6
4q2r/3qqqQb/4q3/b1K1rb1Q/RR1B2BQ/2PP4/2qbNN2/nqn2k2 w - - 0 1 illegal: No possible last move
b5B1/b2b2Qr/q2k3n/rP4R1/Rr2Q1Nr/3K1qP1/2nN1r1r/BQ2r1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 f5 c4 h5 e4 d5 g3 a5 b5 d3 e5 a3 c5 a2 e6 f3 c6 f2 c7 f4 Bg2 f1R Bh3 f3 Ba3+ Qd6 Qa4 d4 Bc1 f2 Rh2 Re1 Qd1 f1R Ne2 a4 Rg2 a3 Ng1 Rf2+ Qe2 Na6 Nf3 Rh7 Bg4 h3 Bb2 h2 Rg1 h1B Bf5 h4 Ne5 h3 Nc4 h2 Ne5 Nh6 Ng4 Nb4 Bc3 Qa6 Nf6 Nc2 Ng4 Kd6 e7 Bd7 c8Q Ra7 e8Q Ba8 Qe3 h1R Bb2 Rhh2 Rg2 Rc7 Qg5 Rc4 Nf6 Rb4 Nc3 Rh4 Rd1 a1R Ng4 a2 Nb1 Reh1 Qb7 R1h2 Qe4 Be7 Rgg1 Bd8 Rge1 Bb6 Be6 Ba7 Rc1 Qb7 Qg7 Qa6 Kd1 d2 Bg8 Rf6 Qf2 Rf3 Ke2 d1R Rf1 Re1+ Kd2 Rf7 Kd3 Rf6 Qg1 Rff2 Nd2 Rb3+ Kc4 d3 Rd1 Rb4+ Kc3 Rfe2 Rf5 Ref2 Nf1 d2 Kd3 Rb1 Rc5 a1B Rg5 Ra4 Rc1 d1Q+ Nd2 Ra5 Bc3 Rb3 Qf1 Bb2 Ra1 Rb4 Ra4 Ba3 Ba1 Bb2 Qfg2 Bbd4 Qgf3 Be3 Qff7 Qf3 Qb3 Rfg2 Qb1 Bg1+ Ne3 Qh5 Ng4 Rf2 Qg2 Qf7 Qe4 Qf3+
Br2n2N/4PN2/1R3nnB/q2n2RN/1Q5q/2r1nP2/Qr3b2/nrk1nK1b w - - 0 1 illegal: No proof kernel
6b1/1n1R1b1Q/n1b2k1r/qQ4rn/Qn4q1/b1P1BNnB/2b2PK1/1NbR4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 a4 h5 c3 b5 g5 e5 g6+ Kf6 g7 d5 a5 h3 a6 e3 a7 b3 Nd2 e4 Qg4 h4 Ke2 b2 Ra6+ Be6 Ke1 b1N Be2 h2 Kf1 h3 Ngf3 d3 Qh5 b4 Ne5 b3 Bd1 e2+ Ke1 b2 Nf1 d4 Rd6 Qa5 Nd2 Rh6 Ndc4 Na3 Nc6 b1B Nd8 Nb5 Bb2 Bc2 Ne3 Na6 Rg1 h1B Qd5 h2 Rc6 Ba3 Nf1 Nd6 Rc8 Nb7 Qc5 Bf7 Kd2 e1B+ Kc1 e3 Nc6 e2 Ne5 Bc6 Nd2 h1N Nef3 Ng3 Rc7 Re8 a8Q Re5 Qd5 Rg5 Nb1 Bb3 Bc2 Bc4 Ba4 d2+ Kc2 Ba2 Kd3 d1B Rd7 Bd2 Qb5 Bc1 Qe8 Bad5 Bb3 Bde6 Bd5 Bb3 Rd1 Bf5+ Qe4 Bh7 Be6 Bc2+ Kc4 d3 Kd4 e1N Bh3 d2 Ke3 Nd3 Qea4 Ndb4 Kf4 Ne7 g8Q Nef5 Qh8+ Ng7 Ke3 Bhg8 Qh7 N3f5+ Ke2 Nh5 Kf1 Nfg3+ Kg2 Bcg6 Rh1 d1Q Rg1 Be3 Bc1 Bc2 Rf1 Qd4 Rd1 Bf4 Be3 Qc4 Bb6 Bfc1 Be3 Qg4
2QBqq1b/k1rq1N1N/1Rr5/3bqr1P/1n1q2R1/n2N1r2/PK2r1Qq/5B2 w - - 0 1 illegal: No possible last move
3r1Qbq/R1RNn2r/1q1n2qb/1Q1PrN1B/1Kr3q1/P3r2r/3Q3B/1kq5 w - - 0 1 illegal: No possible last move, all moves rejected
q1K2n1q/6Bk/r4q2/n3RR1r/b5QN/2n1rqbB/qn1PN1P1/3q1QR1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 f5 e4 Kf7 a4 Kg6 e5 c5 e6 b5 a5 b3 a6 c3 e7 c4 e8Q+ Kh7 a7 h3 Ba3 b2 Qb3 c2 Qc6 c1R Be2 h4 Qe3 c3 Qd5 h2 Qdd3 h3 Bd6 b4 Qdd4 b3 Qe6 c2 Qee4 Nd7 Ra6 Re1 Qe6 c1N Na3 b1Q Qc5 b2 Qc6 Qa2 Rb6 b1N Qe5 Ne7 Nc4 Nd3 Qce4 Nc3 Bd1 Nc6 Bc5 Na5 Qb7 Nb2 Bd4 Bd6 Qbe4 Nf8 Rb5 Bd7 Ne2 Be8 Rg1 h1Q Rc5 h2 Qf6 Ba4 Re5 Qc8 Ne3 Qa6 Kf2 f3 Kg3 f2 Kf4 f1Q+ Kg5 Qc6 Qg4 f4 Nf5 f3 Nh4 f2 Kf5 Bb8 Bb3 Qc8+ Be6 Bd6 Nf4 Re3 Ne2 Qb7 Bc8 Bb8 Qa6 Qd1 Kf6 Qf3+ Ke7 f1Q Kd8 Qda1 Rf5 Bg3 Bg7 Qad1 Re5 Qf6+ Kc7 Q1f3 Qb5 Rb8 a8R Rb6 Be6 Ra6 Kc8 Qda1 Ra7 Qd1 Rf7 Qda1 Rc1 Qd1 Qbc4 h1Q Qcf4 Qe7 Rff5 Qf6 Bd7 Kg8 Rb1 Rh5 Rc1 Kh7 Qc4 Qdb3 Rg1 Qad1 Qd3 Qg8 Qb5 Qh8 Qbc4 Qh3 Qcf4 Qfd5 Qf1 Qa8+ Kc7 Bc2 Rf4 Nb7 Qe6 Qhf5 Rf2 Qa7 Kc8 Ba4 Qc4 Qe4 Bh3 Na5 Rff5 Qf3 Qg4 Qaa8+
r1r1n3/1bq1q2B/1k2B1R1/1r1RBKq1/Qq1N1b2/1N3r2/1Q1PP2r/nr3n2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 b5 g4 f5+ Ke5 h5 a4 h3 a5 b3 g5 b2 a6 f3 g6 f2 a7 c3 g7 b4 Ra4 f4 Ra1 h4 Qb3 h2 Ke4 h3 Ra5 f3 Rb5 c2 Rd5 Nd7 Qa2 b3 Rc5+ Kb6 Ra5 c5 Kf5 c4 Ke6 c3 Na3 b1Q Rf5 b2 Nb5 Bb7 Qa4 Rh5 Qf4 Nc5+ Ke5 Nf6 g8B Qe7+ Be6 Bh6 Rg5 Nb3 Na3 Na1 Kf5 Ne8 Bg2 f1R Kg4 f2 Rg6 Rb5 Qb4 Be3 Nf3 Bf4 Rg1 h1Q Nd4 h2 Bc6 Qd5 Nb3 Qe5 Be4 h1R Rg5 Qd5 Bh7 Rh2 Qa4 Qdc5 Rd5 Qb4 Rg3 Qa2 Kf5 b1R Bb2 c1Q Rg1 c2 Be5 Qab2 Rg6 Q2d4 Na5 Qe3 Qb3 Q3c5 Qb2 Qcc7 Nb3 Qd1 Rd7 c1R Rd5 Rc6 Nc2 Qc1 Ncd4 Qcc5 Nf3 Qe3 Nfd4 Rc3 Bh8 Rfc1 Bf6 f1N Be5 Qg1 Qc2 Rf3 Qb2 Rc8 a8Q Qgg5+ Ke4 Rcc5 Qa4 Ra5 Qc1 Raa8 Qb2 Qg2 Kf5 Rb5 Bf6 Qg3 Be5 Qgg5+
q2n1b1k/N5Rr/5n1n/4q1QB/n1NR1P1b/1b6/2K1Prb1/BQn1qRn1 w - - 0 1 illegal: No proof kernel
1Q2nq2/nn2b3/N1N1B1k1/nr2bN1n/2P1RPb1/3bQ3/1Bq1qR2/K1r3n1 w - - 0 1 illegal: No possible last move, all moves rejected
1B3r2/q2Kbb1b/3bB1nr/r4NR1/P2P1b2/2q2n2/1Q1R2nN/2nQ1Rbk w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kd5 d4 Ke4 e3 f5 h5 g5 h6 c5 h7 b5 Qe1 b3 Qa5 c3 Qa7 b2 Ke2 b4 Qc7 c2 Nf3 c4 Qd6 b3 Qa6 c3 Qd6 g3 Bd2 c1B Ne5 g2 Nd3 g1B Ra2 g4 Rh4 g3 Qf6 g2 Ne1 c2 Na3 b1B Rh6 b2 Qg6 Ra5 Nb5 Qb6 Rh4 Nc6 Bc3 Bh2 Qh5 g1B Ra1 Be7 Rg4 Be6 Rg5 Bf7 Bh3 Ne5 Nf3 Qa7 Bb4 Bd2 Bd6 c1N+ Kd1 Bb4 Bb8 Bbd6 Kd2 Bc2 Kc3 b1Q Ra2 Qa1+ Rb2 Bg3 Nh2 f3 Bg4 f4 Be6 f2 Qd1 Nf3 Kc4 Bb1 Rd2 f1N Rc2 Nh6 Rd2 Rf8 h8R Nf5 Rh6 N5h4 Rf6 Ng6 Nc7 Rd8 Nd5 Rh8 Rff5 Rh6 Rf6 Ra6 Kb5 Ra5+ Kc6 Bd3 Nb6 Qc3+ Nc4 Ne1 Rff5 f3 Rf6 f2 Rff5 Bc7 Kd7 Bgf4 Rg2 Bfg5 Re2 Be8+ Kc8 Nf4 Bf7 Bf8 Rc2 Bf6 Rgg5 Nd2 Bg8 Bg6 Kd7 f1R Rb2 Bh7 Ra2 Ng6 Rf3 Bb1 Nd6+ Kd3 Rc2 Ba2 Rf2 Bd5 e4 Ke3 e5 Bfd8 Rf7 Bf6 e6 Kf2 e7 Ba2 Rf5+ Kg2 e8Q Kh1 Qee2 Ng2 Rg5 Be5 Qb5 Be7 Qb2 Rf5 Rg7 Rf8 Rf7 Bc4 Rf1 Nf3 Nf5 Bf4 Rd2 Bb3 Bd5 Ba2 Bc6 Bag8 Bd5 Bf7 Be6 Bcd6+
6bn/1b3BP1/2KBr1Bq/6nq/3b1b2/2Prq1Qb/k2n1bR1/N1QnRN2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 a4 Kd5 g4 Kc4 c3 e5 f5 b5 g5 h5 g6 d5 g7 b3 a5 b4 f6 e3 Kf3+ e2 a6 d3 f7 e1B a7 d4 Ke4 b2 Nh3 b3 Qd2 Qe7 Qc2 Bd2 Be2 Na6 Nf2 h3 Ng4 h4 Nf6 h2 Bg4 h3 Bf3 Rh6 Qd1 Nc7 Qf1 Ne6 Nd7 Bf4 Ra3 Ng5+ Kf5 e4 Qe2 e3 Rf1 h1Q Re1 h2 Rd1 Re6 Qc2 d2 Ra5 d3 Be4 e2 Bb7 e1B Ra1 Bf2 Rf1 d1Q Rg1 d2 Rg2 Qh5 Bf3 d1N Nc5 Bb7 Bd2 Rd8 a8B Rd3 Qc1 Qe8 Bg4 B8d6 f8Q Bde5 Be2 Bed4 Qd6 Qh6 Bh5 Ne7+ Kg4 Bd5 Bf7 Ng6 Kf5 Nh8 Qc7 Bb7 Be3 Bc8 Be4 Qe1 Bd2 Qe3 Be1 h1B Nd2+ Kb5 Qd6 b1N Nf1 b2 Nb3 Nd2 Rb1 Ka4 Na1 Bb7 Qb8 Ka3 Qc7 Bh4 Bg3 Ka2 Bh2 Bf2 Qb8 Bc7 Bd6 Bd5 Ba3 Bh2 Qg3 Qb5 Bd6 Qa5 Qf3 Bf4 Qg3 Bb7+ Kg4 Qd5 Beg6 Qdf3+ Kf5 Qfh5 Rh2 Bhd5 Rg2 Re5+ Kf6 Be6 Ke7 Re4 Be8 Bg8+ Kd7 Re6 Kc7 Be4 Bef7 Bf5 Qc2 Bh3 Kc6 Ndf3 Qe2 Nd2 Rc1 b1B Qe1 Bc2 Rb1 Nb2 Qc1 Nd1 Rb5 Bb3 Re5 Bd5+ Kc7 Qef3 Re1 Qe3 Kd7 Bb7 Kc7 Ba6 Kc6 Bb7+
4q2b/2P5/N2nqrn1/1bKB2Pk/2b3R1/qB4q1/Rq1Br1Q1/nn1qQ2N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 c4 f5 e4 Kf7 g4 Kg6 a4 d5 a5 h5 c5 f3 e5 f4 e6 b3 e7 h3 c6 h2 g5 b4 c7 d3 a6 d2 a7 h4 Qe1 d1Q Ra4 h3 Ba6 d4 Be2 d3 Nc3 b2 Bd2 b1N Qf1 b3 Ra2 b2 Qg2 Bd7 Qg4 Bg7 Qe6+ Kh5 Bf1 Nf6 Nd5 Qe8 Be2 Bb5 Bc1 d2 Bf1 Qa4 Ne3 d1Q Qe4 Nbd7 Qb4 Qa3 Qe1 Nf8 Qa5 Rh6 Qc3 Ng6 Qa5 Bh8 Bg2 Qdd7 Nd1 Ne4+ Ke1 Nd6 Kf2 Qe6 Qe1 Nd2 Ne3 b1N Ne2 Nb3 Bd2 Na1 Rf1 h1Q Nc2 Qh2 Rg1 Bc4 Nb4 Qg3+ Kf1 h2 Na6 f2 Bd5 Rb8 a8Q h1Q Qc6 Qhe4 Qb7 Qb5 e8B Qbb2 Ba4 Re8 Bb3 Q4e5 Bg2 Qb5 Bd5 Re7 Qa8 Qe8 Qc6 Qd3 Kg2 f1B+ Kf2 f3 Rg4 Bb5 Qc2 Qdc3 Qe4 Qce5 Ke3 f2 Ng1 Bfd3 Nh3 f1Q Nf2 Bdc4 Nh1 Qh2 Qe2 Qd1 Qg2 Nh4 Qe5 Rf6 Qee4 Ng6 Qe5 Qbc2 Kd4 Qg3 Qe1 Qcc1 Nb4 Qcb2+ Kc5 Q6c8 Qeg1 Re2 Qe1 Qa4 Na6 Qce6 Qf3 Qa5 Qg2 Qaa3+
R1N3r1/Pb5n/3R3b/2q2B1N/k2r2rb/1bQ5/PKqbnQr1/2qQBb2 w - - 0 1 illegal: Other
3bn3/3R3B/r3N3/b3Q3/nq3rR1/KbBnq1q1/2Pq1k1P/b1NQnBb1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 g4 f5 b4 fxe4 g5 a5 g6 axb4 Ke2 hxg6 Kd2 g5 Ke1 g4 Kd2 Kf7 f4 Kf6 a4 Kf5 a5 e5 a6 g5 a7 d5 Ra4 b5 Qe2 e3+ Kd1 Ke4 f5 d3 f6 d4 f7 g3 Nf3 d2 Ra2 g4 Qg2 b3 Rg1 b4 Ra6 b2 Rh6 b3 Be2 Qg5 Bc4 Nf6 Qf2 g2 Rh5 g3 Ne1 Be6 Rf1 g1B Nf3 g2 Rh6 Nc6 Rg6 Nb4 Ne1 Nd3 Ba6 Be7 f8Q Qg3 Qb8 Bd8 Qe2 Rf8 Qb6 Ne8 Qb4 Rf4 Na3 b1Q Qg4 b2 Qb6 Bb3 Ke2 d1N Bd2 Qc1 Qge6 b1Q Rg7 N1b2 Nb5 Na4 Nc7 Bf2 Rg6 g1B Qbd6 Qbb2 Rg7 Qc3 Rf7 Qb4 Bc3 Qca3 Kd1 e2+ Kd2 Ba2 Rd7 Bb3 Ng2 Kf3 Qf6 e1N Ne6 e4 Qfe5 e3+ Kd1 Rc8 a8B+ Rc6 Bc4 e2+ Kd2 Ndb2 Kc1 d3 Kb1 d2 Bb7 Rd4 Ngf4 Nbd3 Bc8 Ra6 Bb7+ Kg4 Be4 Qe3 Bh7 Kf3 Nh5 Rf4 Ng3 Nc1 Qdd4 d1Q Qd2 Ncd3+ Qc1 Qdd2 Qd1 Kg2 Bb5 Nf3 Bc4 e1B Ne2 Bfh4 Nc1 Ba5 Bb5 Bhd8 Bc4 Beh4 Bb5 Nfe1 Rf3 Rg4 Rg3+ Kf2 Bc4 Rf4 Rg4 Bhf6 Bb5 Qbe4 Bc4 Qg2 Bb5 Qb4 Ka1 Bd5 Bc4 Qgg3 Ka2 Qbb6 Ka3 Qbd4 Bb5 Bb3 Bc4 Kf1 Qg5 Kf2 Bb2 Ndc5 Bf1 Ncd3 Qg7 Qb6 Qh8 Bfc3 Qe5 Bd4 Bc3 Qb7 Bb4 Ba1 Bc3 Qb4+
2n2b2/1Q6/BB2bn2/N1r1Rqbr/nB6/PPRK3r/Q1N2r2/qbb2k1n w - - 0 1 illegal: No possible last move
Kb1q1qNN/7Q/q2rNQ2/Pr2bP2/k1B1r2R/n2nRrb1/4b1qB/b7 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 Kd7 f4 Kc6 c4 g5 a5 b5 c5 d3+ Ke3 g3 f5 d4+ Kd2 e3+ Ke1 g4 h5 g2 h6 g3 h7 b3 Bd2 b2 Ra4 b4 Ra3 Kb5 c6 e4 c7 e2 Rb3 Ka4 Rh6 Bg7 Be3 Ne7 Kd2 Nbc6 Qc1 e1B+ Kd1 d2 Ke2 d1R Bf4 d3+ Ke3 d2 Rf6 Na7 Na3 b1Q Qc4 Ng6 Be5 Qf8 Kd4 e3 Kd5 e2 Bd6 Nf4+ Kc5 Nb5 Kc6 Nd3 Qd5 Ba6 Be7 Re8 Nc2 Na3 Bc5 Re4 Nh3 g1Q c8N g2 Rf7 Be5 Ng5 B1g3 Be3 e1B Qd6 Rg8 Rc3 b3 h8Q b2 Bf4 Qh2 Rb7 g1B Qdf6 Qg2 Ne7 Ba7 Nd4 Bab8 Qh7 Qa1 Nde6 b1R Rc7 Rb5 Nf7 Bef2 Nh8 Bfd4 Be2 Rf1 Rb3 Rg6 Ng8 d1Q Rg7 Rh6 Rg4 Rf3 Rh4 Qdf1 Rc3 Qad1 Rb3 Ba1 Rc3 Nc1 Bc4 Qdd8 Re3 Nd3 Ng6 Rb1 Nh8 Bb5+ Kb7 Ba6+ Ka8 Rb5 Qfe7 Rf6 Nc7 Re6 Qf6 Rd6 Ne6 Rbb6 Qg5 Nf2 Bd3 Bh2 Bb1 Qc4 Bd3 Qcc8 Bb1 Be2 Qf6 Nd3 Ba2 Rb5 Bc4 Qa6+ Qa7 Bg1 Bg3 Bf2 Bh2 Qac8 Qag7 Bfg3 Qh7 Qa6+
nrb4R/b2N2K1/1b1r2PR/1q2QN1B/2nrQ2P/2rB4/n4n1b/B1n2qk1 w - - 0 1 illegal: No proof kernel
1r2K3/1BB1RNQ1/1P1q2qr/2bb1N1R/2nP3b/1kq1r3/2r2nb1/r3QQ1q w - - 0 1 illegal: No possible last move, all moves rejected
Kbr4k/B1N1Pq2/1b3NBb/1n1R1r2/2r2Qbr/2nP3Q/3Rqb2/nn4N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 e4 g5 a4 f5 d3 Kf7 h5 Kg7 e5 b3 a5 g3+ Kf3 c3 e6 b2 a6 b4 a7 b3 e7 g4+ Ke2 g2 Kf2 c4 Qd2 f3 Ke3 c2 Qe1 f4+ Ke4 g3 Nd2 b1R Qe2 b2 Nb3 c3 Qe3 f2 Be2 f1Q Ra4 f3 Rh4 f2 Rd4 Nc6 Bf3 Bg4 Qf4 Rc8 a8Q Na7 Rh2 Nb5 Nc5 Qe8 Kd5 Qf7+ Ne6+ Kh7 Bd2 c1N h6 c2 Qc7 Nf6+ Kc6 Ne4 Kb7 Nb3 Be3 c1B Ne2 g1B Rd6 g2 Ba7 Na1 Qab8 Qe1 Rd5 f1R Ka8 Bce3 Qg3 Bf4 Qh3 Bb6 Ng1 Rbc1 Nc5 b1N Ne6 Bf5 Bh5 Bg4 Bg6+ Kg8 Rf5 R1c4 Rd5 R8c6 Qe5 Nec3 Qg5 Bb8 Qgh4 Rc8 Nc7 Bd1 h7+ Kg7 Qe4 Rf5 Qf4 Bg4 Bh5 Rg8 h8N Qe3 Ng6 Rh8 Ne5 Kg8 Bg6 Rh4 Qhf3 Kh8 Nd7 Bh6 Nf6 Qee6 Qh3 Qe5 Nf3 g1B Rd2 Bgf2 Ng1 Qe2
3Q1RNk/1rBP2b1/r2rBK2/n2NPb1q/1nb4B/1br5/1RQ3q1/1n1n3r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 d4 f5 e4 Kf7 a4 g5 h5 Kg7 a5 g3+ Kf3 c3 d5 c4 e5 c2 d6 c3 a6 g2 a7 b3 Rh3 b2 Ra2 b4 Rh2 b3 Rh4 g4+ Kf2 g3+ Kf3 Be6 d7 Nc6 Qe2 Nge7 Qd1 Na5 Bd3 Nec6 Nd2 b1N Bc4 b2 Ne4 Qg5 Bd5 Nb4 Qd3 Rh6 Qa6 Kh8 Bb7 Bb3 Ra3 Rd6 h6 Qh5+ Rg4 Rb8 h7 Bh6 Bd2 c1R a8Q c2 Ne2 g1Q Bc3 g2 Qc4 Re1 Qc5 c1R Bd5 Red1 Bd4 Ra6 Nf6 Rc3+ Be3 Rd4 Be6 Rdd6 Ng8 Rb7 Qd8 Qgh2 Ra2 g1R Qc4 Rh1 Qd3 Qg1 Bb6 Qgh2 Bc7 Q2h3+ Kf2 f3 Nf4 Qg2+ Ke3 f2 Rg5 f1B Nd5 Be2 Kf4 Bf1 Qc2 Bd3 Ke3 f4+ Kd4 f3 Rf5 f2 Rf8 Bdc4 Kc5 f1N Kd4 Qg1+ Ke4 Qh4+ Kf5 Qh5+ Kf6 Qg2 Qe8 Ne3 Qc8 Nd2 Qd8 b1B Rb2 Nd1 Qc1 Bf5 Qc2 Qgf3 Ke7 Kg7 h8B+ Kh7 Bf6 Qg2 Bh4 Nb1 Kf6 Kh8 Qa8 Qh2 Qb8 Qg2 Qd8 Bg7+
3RKb1Q/5PBn/BkrnP3/1n2Q1b1/4N1Nb/2R4q/b4Rn1/qq1r2qr w - - 0 1 illegal: No proof kernel
N1r4n/1Rn1B1rQ/3nbq1N/2PB1r1P/1nbRr3/3Bb2k/4n1b1/1n2Q1K1 w - - 0 1 illegal: No possible last move
1BR3BN/qq5r/3nQ1b1/q1rRn3/1BQ1rn2/1PNp4/KP1qqbk1/4b3 w - - 0 1 illegal: Other
2b2b2/2b3B1/1NqR1Br1/2B3rK/pP1q2N1/Pr2n2R/4n1Q1/kn2qnQn w - - 0 1 illegal: No possible last move, all moves rejected
1Bbr1qn1/2nRn2k/2q1BqNb/Pr2Qr2/5P2/bQ1R2R1/2r2r1p/1N1K4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Kg6 c4 b5 a4 d5 g5 h5 c5 e5 a5 e3 c6 e2 c7 e4 Qc2 h3 Qc4 h4 Nc3 h2 Qa2 h3 Na4 b3 Nb6 d3 Qd2 b2 Rb1 b4 Qd1 d2+ Kf2 e1R Bg2 e3+ Kf3 e2 Nd7 b3 Kf2 d4 Ra1 b1Q Ba3 d3 Bf3 b2 Bd6 Nc6 Nc5 Nce7 Ra3 Kh7 Na6 Qa1 Bh5 b1R Nb8 Bh6 Bg4 Qf6 Be6 Rb5 Nf3 Qdf8 Qb3 d1R Nd2 Rc1 Nb1 d2 Nd7 Rc2 Ne5 d1N+ Kf3 Nc3 Ng6 Rec1 Rd1 e1B Rd2 Ncd5 Ke2 h1Q Be5 Bd7 c8Q h2 Qcc3 Bc8 Bb8 Nc7 Qcb2 Qc6 Qe5 Rcc5 Rd8 Bb4 Rd7 R1c2+ Kd1 R5c4 Qa2 Ra6 Rad3 Rf2 Qb3 Rcc2 Bd5 Q8f7 Qe6 Qe5 Qf6 Qce6 Qf5 Nf6 Qe4 Q5f5 Nh4 Ba3 Qe5 Rd8 Bc4 Qf8 g6+ Kh8 g7+ Kh7 g8R Rc6 Qd5 Rcc5 Rgg3 Ng8 Ng6 Q5f6 Qh5 Qa6 Be6 Qc6 Qe2 Rg5 Qe5 Rf5
3k1q2/5Q2/q1B2qp1/rR3nRq/b1r2rb1/Bq2QBPP/1n5N/K1N3bn w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Kd2 h3 Ke1 exf6 Qd3 f5 Qf3 f4 Qg2 hxg2 Kd2 f5 c4 b5 Kc2 d5 Kb2 b3 a4 g6 e4 b4 h3 f3 c5 d3 c6 d2 c7 d1Q e5 f2 e6 f4 e7 f3 a5 d4 a6 d3 a7 d2 Nc3 Nd7 Ba6 f1Q Nb5 f2 Rb1 Ndf6 Nc3 Bg4 c8B Ne4 Nce2 Rh4 Be6 Nh6 Nd4 Nf5 Ngf3 g1R Bb7 Qa6 Rh2 f1Q Rg2 Nf2 Ne2 Nh1 Rf2 Rc8 a8Q Rc4 Qb8 Bh6 Nfd4 Be3 Bbc8 Rg2 Rf4 Bg1 Bg8 Rh5 Qe5 Rf2 Re4 Rf4 Bd5 Qf6 Ka1 b2+ Ka2 Qf8 Bcb7 Qc8 Nf3 b3+ Ka3 Qe6 Nh2 Qef6 Qc3 Kd7 Bbc6+ Kc7 Qe3 Kc8 Ra1 b1B Re5 b2 Bf3 Bc2 Ka2 Ba4 e8Q+ Kc7 Qe6 Kd8 Qf7 Qb3+ Kb1 d1N Ra3 Qb5 Rb3 Qa6 Rbb5 Qe1 Ka2 Qea5 Bd2 Rg5 Nc1 Rh5 Bb4 b1Q+ Ka3 Qd3+ Ka2 Nb2 Ka1 Qb3 Ba3 Qc7 Qe6 Qh7 Qf7 Rg5 Rec5 Qh5 Qf2 Nd6 Ra5 Re5 Qe3 Re6 Rg5 Nf5 Rc5 Re7 Ra5 Rb7 Re5 Rb5 Rc5 Ra5 Rd5+ Nd6 Rb5 Nf5
6qn/1bnQn1bn/1Q1QPP1k/1q2r2r/4rN2/n2R2pN/Rb3K2/1B2B2q w - - 0 1 illegal: No possible last move, all moves rejected
4Q3/1N1b1q2/rP1b3n/5k2/4qp2/2q1qqBn/QRBNP1bK/rn1RB1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 Kg2 Ke6 c4 d5 h4 a5 b4 f5 h5 g5 b5 d3 h6 d2 h7 f3+ Kh2 d4 c5 d3 c6 f2 b6 g3+ Kh3 g4+ Kg2 a3 c7 f4 Rh2 a2 Kh1 a4 Ba3 Nd7 Rh5 g2+ Kh2 g3+ Kh3 Qe7 Rg5 Ne5 Bb4 a3 Nc3 Bd7 c8Q Nh6 Nb1 Ra6 Qc3 Nf3 Qg7 Rg8 h8B Qf7 Qc2 d1Q Ra5 d2 Qd4 Bd6 Nc3 Qb1 Rb5 d1Q Bf6 Nd2 Nf3 g1Q Bh4 g2 Bg3 Qe1 Qa4 Qe4 Rd1 a1Q Qe3 Nb1 Nd2 a2 Qc2 Rg6 Na4 Qc3 Nc5+ Kf5 Qb2 a1R Qa2 Qf3 Qe8 Qcc4 Bc3 Qce4 Rb2 Rg5 Ndb3 Qd2 Nb7 Qdd3 Be1 Qc3 Nd2 Qfe3 Kh4 Qh1+ Bh2 g1N Bg2 Nh3 Bg3 f1B Bf3 Qfc4 Bh5 Qhf3 Bg6+ Kf6 Bf5 Qf7 Bg6 Bg2 Bh7 Qa4 Bc2 Qae4 Qf8 Bf1 Bh2 Nf2 Qe8 Rg1 Bg3 Kf5 Rb4 Nd3 Rb3 Bg2 Rb2 Bh1 Kh3 Nf2+ Kh2 Nh3 Qa4 Bg2 Qa5+ Qcc5 Qa2 Qcc3
2r1bq2/2Q1Rn1B/pq1N1r1B/2Q1qPr1/Bb1K4/qR1n2q1/4b1Pk/n2N4 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 b4 Ke6 f4 Kf5 c4 Kg4 c5 Kg3 b5 h5 c6 d5 f5 e5 b6 a6 c7 e3 Kd3 a3 b7 e4+ Kc2 h3 Kb3 h4 Bb2 h2 Nd2 d3 Kc3 a2 Qc1 e2 Ngf3 e1Q Ne5 e3 Nf3 h3 Kd4 e2 Ng5 Bd7 c8B Bb4 Nh7 Qf8 Bc3 Be8 Ke5 d4 Nf6 Nh6 Qc2 Nf7+ Ke4 Nd7 b8Q+ Nde5 Bb2 Rh6 Nb3 d2 Qc1 d1B Qcc7 d3 Qbb7 d2 Qc5 Nd3 Nd5 Rf6 Rb1 a1N Bd7 Rc8 Na5 Qf2 Be6 e1Q+ Ne3 Be2 Bc1 d1Q Kd4 Qb3 Nc4 Qa3 Nd6 Qf3 Rg1 h1Q Nd1 Kh2 Qbc7 Qfg3 Bh6 Qef2+ Kc4 Qfe3 Bd7 Qe6+ Kd4 Bh5 Be2 Bf3 Re1 Qg1+ Be3 Bh5 Rb3 Bg4 Bf3 Q1f2 Bd5 Be2 Ba4 Qg1 Kc4 Q1f2 Bh6 Qfe3 Q5a5 Qb6 Qac5 Qee3 Ne4 Bh5 Bf4 Nh8 Bg8 Nf7 Re2 Kg1 Ndf2 h2 Bh6 h1R Nd1 Bf3 Reb2 Rh5 Bh7 Kh2 Nd6 Rg5 Re2 Qee5 Re4 Be2 Re3 Qee7 Kd4 Qd7 Re7 Qdc6 Nb7 Qe6 Nd6 Qee5+
1n1NR2b/nNb2P1k/1BB1P1qr/5n1b/K1Q1n1nq/2r1Nr2/q3p3/R4Q2 w - - 0 1 illegal: No proof kernel
2n2bqR/1BQP4/Kq1N2rN/pQP2B2/1r1r4/nnB1nbk1/2b3n1/2q3R1 w - - 0 1 illegal: No possible last move, all moves rejected
1Rqr4/1Q4P1/nN4QK/2q1R1q1/b2B1q1N/1B1P1p2/1qb1n2q/bq2kB1r w - - 0 1 illegal: No possible last move, all moves rejected
K1qQ1R1B/brPQqp2/6N1/knnb1N2/P1B2n2/1nn5/R3n3/rrBn4 w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 e5 b4 exf4 b5 h5 b6 hxg4 Bd2 axb6 Be3 b5 Bc1 b4 Kd2 d5 Kd3 Kd7 e4 Kc6 c4 Kb6 h4 g5 a3 f3 h5 f2 h6 g3 h7 b3 c5+ Ka5 e5 b5 c6 g2 e6 b2 e7 b4 e8Q g4 Nf3 g1Q Qc2 b3 Rh3 g3 Qd7 g2 Qc4 Qe7 Rh1 Na6 Qe8 Nf6 Be2 f1N Rh5 Be6 Rg5 Nh5 Nh4 Nd2 Bg4 Nc5+ Ke2 Rb8 a4 Rb7 Nc3 b1R Nb5 b2 Nd6 Ndb3 Kf3 d3 Ng6 d2 Nf5 d1N Qf4 d4 Qfb8 d3 Bd2+ Nc3 Ra3 Qc1 Qd7 Nf4 Ra2 g1N+ Ke3 Qc2 Bc1 d2 Be2 Nb5 Bc4 Nge2 Kf3 Rg8 h8B d1N Qbe8 Ra1 Rg1 b1N Qed8+ Rc7 Rh1 Nb1c3 Rh7 Bh6 Rg7 Re8 Rg8 Bg7 Rf8 Be5 Qb8 Rb7 Qbc8 Bb8 c7 Qh4 Qcd8 Qe1 Kg4 Bd5 Kg5 Re3 Kf6 Rh3 Ke7 Rh1 Q8e8 Qd3 Kd8 Qh3 Kc8 Qeh4 Qed8 Qe7 Bb2 Ne3 Ba3 Rhb1 Bc1 Ned1 Qe6 Ncd3 Ne3 Rb6 Qf5 Rc6 Kb7 Ndc5+ Ka8 Qg4 Qfd7 Rb6+ Qc6 Qc8 Nf5 Rb7 Qcd7 Ba7+
R4B2/PnrRb1B1/3Prrp1/3r3Q/4r1bK/bBQ1rr2/1n1N4/q1N3qk w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 a4 Ke6 d4 Kd5 h4 Ke4 h5 f5 h6 c5 d5 b5 h7 g6 a5 g3+ Kg2 b3 Kh3 c3 e3 b2 d6 b4 a6 c4 a7 f3 Bg2 b3 Qd2 c2 Rh2 c3 Ra2 Nh6 Na3 b1R Qe2 b2 Qf2 Nd7 Qe2 f4 Bd2 c1R Bh1 c2 Qa6 g2 Ra1 f2 Qf1 f3 Ra2 Nf7 Kg3 Nb6 Rh3 Na4 Nb5 Qa5 Bc3 Nd8 Qd1 f1R Na3 f2 Nc4 Rb8 Qd2 Rb4 Ne2 Rfd1 Ra3 f1R Rb3 Ra1 Rh6 b1R Kh4 Kf3 Be5 Rg8 h8B Nb2 Rh7 Ra3 Bf4 Kf2 Bh6 g1Q Bd5 Rba4 Rb8 Nb7 Bf7 Kg2 Ra8 Kh1 e4 Rf6 e5 Raf3 Qd5 Rb4 e6 Qa1 e7 Bg4 e8Q Rg7 Be6 Rc7 Qec6 Rd3 Qa5 Re1 Rd7 Be7 Qh5 Rbd1 Nc1 Rdb3 Bd5 Ree6 Bf8 Rbe3 Bhg7 Rdd3 Nd2 Rbe4 Bb3 Rd5 Nd3 c1B Qc5 Na4 Qc3 Ba3 Nc1 Nb2
r5r1/n1nn2n1/1B4NP/1BRb2pk/P4bNq/4n2K/Nr5Q/1bbRbQ2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 Kg6 f4 e5 Kf2 d5 Kg3 b5 c4 b3 c5 b2 c6 e3 c7 e2 f5+ Kh5 f6 e1R f7 g5 Ra2 d3 Qc2 d4 Rh3 b4 Qd1 e4 Rh1 e3 Kh2 e2 Bg2 d2 Nc3 b1N Kg3 d3 Bf1 b3 Ra3 b2 Kg2 g3 Rh2 Nh6 Nd5 Bd6 f8N Rg8 Ne6 Nd7 Ra2 Na3 Qb3 b1B Nd4 d1N Qc2 d2 Ne7 Nc3 Rh1 d1N Ngf3 Ne3+ Kh3 g2 Nb5 g1B Nh2 Ncd5 Ng4 Bf4 Ng6 Nhf5 Nc3 Bb7 c8Q Nb5 Qc4 Ng7 Ra3 Bc6 Na2 Qb6 Rc3 Ndc7 Qf7 Qa7 Rc5 Bd5 Bd2 Qb6 Ba5 Na7 Qb2 Qf6 Bb6 Rc1 Qf8 e1B Qh2 Rc2 Bb5 Rb2 Qf7 Bgf2 Rf1 Bd2 Rd1 Qd4 Qf5 Bc1 Qd3 Be1 Qf1 Qd2 N4e5 Kh6 h5 Qf2 Ng4+ Kh7 h6 Ngf5 Nh4 Ng7 Nf5 Kg6 Ne7+ Kh5 Ng6 Qh4+
brRb3R/2q3n1/Bn1N3q/3q1rQ1/2R1bBPQ/kb1N1r1b/P3p3/1b4K1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 c4 b5 f4 e5 Kf2 Ke7 g3 Kd6 f5 Kc5 f6 d5 f7 h5 Qd3 b3 Bf4 Kb4 c5 b2 c6 e3+ Kg2 e2 c7 e1R Rh2 h3+ Kh1 h4 Be3 e4 Bf4 e3 Qh7 d3 Nc3 b1B Nge2 d4 Bg5 d2 Qg6 d1B Na4 d3 Qb6 d2 Bf4 Rh5 Nac3 Nh6 Qg6 Bb3 Nd4 d1Q Rf2 h2 Qc2 e2 Nc6+ Ka3 Ne5 b4 Qf5 Nd7 Nd5 Be4+ Rf3 Rb8 Kg2 h1Q+ Kf2 h3 Nd3 h2 Nf6 Nb6 Rc1 Be7 Qg5 Bh3 c8R Nf5 f8Q Qc7 g4 Bd8 Qh8 Ng7 Ne8 Ba8 Bg2 Rf1+ Ke3 Be4 Nd6 Rf2 Rg3 Ba8 Bb7 Rf3+ Ke4 Qd2 Rc4 Qhc1 Kd4 h1B Ba6 Qdd1 Rg2 Be4 Rh2 Qdd2 Qf6 Rf5 Qhh4 Ba8 Be5 Qh6 Qfg5 Qd1 Bg3 Rf2 Ke3 Bhe4 Bf4 Rf1 Nc5 Qd5 Nd3 Rf2 Kd2 Rf3 Ke1 Ba4 Rh1 b3 Rh2 b2 Rh1 Rg3 Kf2 Rf3+ Kg1 b1B Qf2 Bf1 Rh5 Bh3 Qfh4 Qf6 Rh6 Bb3 Rh8 Qh6
4kqqr/1Q2b3/5r1q/b1bPB2R/2brb1P1/2BBR3/QN1Kp1n1/1n1N3b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 c5 f4 b5 a4 h5 d4 e5 a5 b3 f5 b4 d5 b2 f6 h3 a6 e3 a7 e4 Ra3 e2 Rd3 b3 Nf3 h2 Nh4 c3 Bg2 c2 Rg1 h1R Bf3 c4 Qd2 c3 Rd4 Ba6 Rb4 Bc5 Qd3 Nh6 Qb5+ Nd7 Ng2 h4 Qd3 h3 Ra4 h2 Nh4 Bc4 Be3 c1B Bg2 c2 Ra2 Nb6 Rf1 Nf5 Bf4 Ne3 Nd2 b1B Rg1 B1a3 Qc3 b2 Nf5 Rb8 Qb3 c1Q+ Qd1 Rc8 a8Q Rc6 Qb7 Qe7 Ra1 Qf8 Be5 Bbd3 Bc3 b1Q Bf1 Be7 Ra2 Bac5 Rg3 Qb4 Ra3 Qg8 Rh3 Rg1 Rh5 h1B Nd4 Rg2 Nb5 Rf2 Be5 Rf4 Rb3 Qba3 Nc3 Qa8 Na4 Qd8 Nb1 Qd6 Rc3 Qa3 Qc2 Ng2+ Kd2 e1B+ Kd1 e3 Qa2 Bg6 Bd3 Be4 Nb2 e2+ Kc1 Qa6 Rb3 Ba5 Nc3 Qa8 Ncd1 Qde6 Bc3 Qf8 Kd2 Qh6 Qa4 Qg8 Qa2 Qc8 Ra3 Qgf8 Rb3 Qe6 Ra3 Qeg8 Rb3 Nc8 Ra3 Nd6 Rb3 Nb5 f7+ Kd8 Ra3 Rcf6 Rb3 Qfg7 f8B Ke8 Ra3 Q7f7 Bg7 Qff8 Rb3 Na3 Rb6 Bf3 Re6 Rd4+ Re3 Be4 Na4 Rf3 Be5 Rf6 Nab2 Nb1+
1r6/r3rq1N/p2r3R/Q2P2qn/P3k1Br/1B5r/1QKb2bN/qNn1b2R w - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 b5 b3 bxc4 Bb2 h6 Bf6 gxf4 g5 Nd7 g6 Nb8 Bg5 hxg5 h4 Kd7 d4 Kc6 Kd2 Kd5 a4 c5 h5 f5 b4 e5 h6 c3+ Kc2 c4 b5 e3 g7 e2 h7 e1B b6 a6 b7 f3 Be2 e4 Ra3 f2 Nf3 f1Q Qc1 f4 Nbd2 g4 Nb3 g3 Rg1 e3 Nfd2 f3 Na5 g2 Nb1 f2 Rh1 g1R Rh6 Bh3 Bd1 e2 Rb3 Nd7 b8N Rh1 Rh4 Bb4 Qa3 Ra7 Qa1 Ngf6 Qa2 Nh5 Qb2 Nc5 Kc1 c2 Nac6 Qg5+ Nd2 Bg2 Nd7 Rh3 Rd3 Rb8 h8Q Qg1 Qe8 f1Q g8B+ Qf7 Nce5 Qf1 Nf3 Ba5 Qa1 Nb3+ Kb2 c1R Qd8 Bb4 Nb1 Bbd2 Nh2 Rc3 Re3 Rd3 Kc2 c3 Re6 Nc1 Rh6 Qh1 Qb2 Qg1 Ng4 Ke4 d5 Rd4 Nf8 Rc4 Nh7 Rc6 Qa5 Rd6 Na3 Qgf1 Kb1 Qh1 Bb3 c2+ Ka1 Nd3 Nb1 c1R Ka2 Rc4 Nh2+ Qff4 Ka1 Nc1 Be6 Qg1 Bg4 Qf7 Na3 Rd4 Kb1 Rdb4 Kc2 Qd4 Qb1 Qa1 Qb2 Ke3 Rg6 Rg3 Nf3 Bf2 Bh3 e1R Nb1 Re2 Bd7 Bfe1 Rh1 Rh4 Bg4 Rgh3 Rh6 Kf4 Nh2 Ree7 Nf3 Ke3 Nh2 Ke4
rq1BK1R1/3P2B1/1Nb5/p1bb2bn/r2PBrnk/3Q4/4RNq1/1Q1n2bb w - - 0 1 illegal: Other
1qRq1qn1/2P4q/5BbQ/R2rN3/4n3/pP1B1Q2/1N2r2q/1qbKbrkN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 e4 Ke7 c4 Kd6 g4 Kc5 b3 h5 e5 a5 g5 f5 g6 d5 e6 h3 g7 f3 e7 h2 e8N h4 Nc3 a3 Bh3 a4 Kd2 f4 Nd6 a2 Nf7 a3 Ne5 f2 Bb2 f1R Nef3 d3 Nd4 f3 Nb1 f2 Nc2 d4 Bd7 h3 Qg4 Ra5 Qe2 Na6 Bg4 Bf5 Nf3 Qb8 Qe6 Bg6 Rg1 h1Q Rg2 h2 Nb4 Bd6 Bc3 Bg3 Nd5 Rh4 Bh3 Re4 Qg4 Qg1 Nb4 h1Q Qe6 Qgh2 Bf5 Qh7 Ne5 Q1h2 Bb2 Bh4 Nc3 Rb5 Re1 a1B Kc1 d2+ Kd1 Re2 Rg5 Ra5 Bd3 Rb5 Nca2 Bg3 Bc3 Bb2 Qf5 Bc1 Qf3 Ra5 Ba1 Rb5 Nc3 Ra5 Kc2 Bh4 Nd1 Bg3 Nb2 d1Q+ Kb1 Qd2 Rd1 Qf4 Rd2 Qff8 Kc2 Nc7 Rf5 Ne8 Rg5 Nef6 Rf5 Nh6 g8Q Ne4 Qg7 Ng8 Qh6 Qfd8 Nd5 Bh4 Nf4 Rb5 Nh5 Qf8 Ng3 Ra5 Kb1 Rb5 Bc2 d3 Nh1 Kd4 c5 Qfd8 c6 Rd5 Rd1 d2 c7 Bg3 Re1 d1Q Bd3 Qc2+ Ka2 Qc5 Kb1 Qcf8 Rg5 Rg1 Rd1 f1Q Rd2 Be1 Kc2 Qff2 Kd1 Rf1 Rc2 Qfg1 Rc5 Qhe7 Ra5 Qh7 Qf5 Ke3 Ra8 Qb6 Rc8 Qb8 Qf3+ Kd4 Nf7 Rd7 Qh4 Bb4+ Qe1 Qgf2 Ra5 Rd5 Na4+ Bc3 Bb2 Qfh4 Ba1 Qhf6 Qh5 Ke3 Qh6+ Kf3 Bb2 Kg2 Ba1 Rff5 Qg3+ Kf1 Qgh3+ Kg1 Q3h5 Rff2 Qf3 Be1 Bb2 Qc6 Bf6 Rf1 Nb2 Qc4 Ne5 Qd4 Nbc4 Qa1 Nb2 Qb1
1q1rq3/nqP1B1nN/R4bP1/rNRQ1Q2/7K/2p2n2/1kb1B2n/n1n1R2b w - - 0 1 illegal: No proof kernel
1qr5/RpB3n1/q3bPNn/1bPbB1Kr/B1r2Q1N/Q7/q4b2/2R2bbk w - - 0 1 illegal: No possible last move
1r3nR1/pr1q2q1/3NBPP1/1Q1KRQ2/nq2rb2/Bbk4b/2Nr2Rr/r7 w - - 0 1 illegal: No possible last move
q7/4Kn2/1BBNnb1N/4rqk1/qqb1Prp1/2RrP1qr/r1QB4/4RQ2 w - - 0 1 illegal: Other
2B1nN1k/B1r1rn1B/6R1/1K3Nq1/1P6/1Q1pbr2/b1QPrq1r/b1b1R2b w - - 0 1 legal: proof: b4 e5 h4 b5 a4 bxa4 f4 exf4 h5 c5 h6 c4 c3 gxh6 Na3 h5 Nb1 h4 Qb3 cxb3 e4 h5 Ke2 a5 Kd3 d5 g4 f5 c4 Kf7 e5 Kg7 c5 b2 g5 a3 e6 a2 g6 d4 Kc4 d3 e7 a4 e8Q a3 c6 h3 c7 h4 Qb5 h2 Nh3 f3 Qc5 f4 Ng1 f2 Qa7 f3 Qa5 h3 Ne2 Be6+ Kb5 Qg5+ Ka4 Ra7 c8B Rh7 Bb7 Na6 Ng3 Nh6 Bc6 Nc7 Bb7 Bc5 Nh5+ Kh8 Bg2 f1R Nc3 b1R Ne2 f2 Rg1 h1B Ng7 h2 Bge4 Ne8 Kb5 Be3+ Nf5 Nf7 Bc8 Rc7 Qa4 Rg7 Bb2 Rbe1 Rc1 a1B Bd4 a2 Ba7 Bb2 Nf4 a1B Qc2 Re2 Re1 Ba2 Ne6 Bc1 Nf8 Bg2 Be6 h1R Bd7 Rh2 Bc8 Bh1 Rg3 Rg1 Rg4 f1Q Rg3 Nh6 Rg2 Rge7 g7+ Kg8 Rg4 Qf2 Rg3 Rf1 Rg1 Kf7 g8Q+ Kf6 Qgb3 Nf7 Ne6 Kg6 Rg2 Kh7 Nf8+ Kh8 Rg1 Qgh4 Rg6 Qg5 Rg7 Qf6 Nh4 Q2f4 Bh7 Q6g5+ Nf5 Qfg3 Rg6 Rf3 Qc6 Q3h4 Qcc2 Qf2
Q1n1bqk1/5n1n/P1N1bq2/1P2n1r1/KRN1b2B/2QR4/5pB1/2nbbQr1 w - - 0 1 illegal: No proof kernel
q3K3/3n1pQ1/B1n4b/Bbq1BnRP/1N1q2RN/q6k/1PrQ3n/n1r4q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 d4 Ke6 e4 g5 h4 a5 h5 c5 e5 Kf5 e6 f3 Kg3 a3 d5 a4 d6 f2 d7 c3 e7 c4 e8Q c2 Be2 f1N+ Kf2 g3+ Kf3 a2 Nc3 a3 Qd4 g4+ Kg2 Ba6 Rh4 Nh6 Qg7 Nc6 Nf3 Bb5 Rh2 Rc8 Na4 c3 Be3 c1N Rb1 a1N Rh1 a2 Bf2 c2 Qe3 Nh2 Ne5 Nd3 Rbg1 c1Q Ng6 Nde5 Qd2 Qc5 Nc3 Qe8 d8B Nd7 Be3 Rc7 Bf6 Qa8 Nd5 Qca3 Bb6 Qc5 Qh7 Bg7 Nb4 Rhc8 Be5 Bf8 Qd1 Kg5 Qd6 Nf5 Ba5 Bh6 Qg7 Qd4 Rf1 Qc5 Rhg1 Qd4 Rf4 Qc5 Nf8+ Kh4 Qd2 Qd4 Kh1 Kh3 Ng6 Nd8+ Re4 Rc1 Nh4 R8c2 Bd3 Nc6 Bc4 Ba4 Ba6 Bb5 Rf4 Nb3 Re4 a1Q Rf4 Nd6 Rf5 Qa3 Rg5 Nf5 Re1 Bf1 Re4 Na1 Rf4 Qc5 Rd4 g2+ Kg1 Bb5+ Kf2 Ba4 Ke2 g3 Rdg4 Nb3 Kd3 g1Q Ke4 g2 Kf4 Na1 Ke4 Qh1 Kf4 Qcf8 Ke4 Bb5 Kd5 Nfe7+ Kd6 g1Q Bf4 Qfd8 Bg3 Qdb6 Be5 Qbc5+ Kc7 Ncb8+ Kd8 Qgd4 Ke8 Nf5 Bd6 Nc6+ Bb8 Qb7 Be5 Qa8+
2B1b1R1/1Qr3bK/n7/q1b4q/nB3NQ1/1Ppbb1n1/n1Pkq1rR/4NB2 w - - 0 1 illegal: No possible last move
1rNNq3/8/2qb4/1BqR1r2/Pq1r2rp/1P4Bn/n2nQ1Kr/k2b1QRN w - - 0 1 illegal: No possible last move
2rR2Nr/r7/bn2R2Q/Qqq2BB1/P1Q2qp1/Pn1q1k2/7b/1KNr2qb w - - 0 1 illegal: Other
qBq3Q1/1q1Nk1N1/n1b3b1/3nPnK1/1nrb1Qp1/5B2/1Q1r1PR1/2b1n1R1 w - - 0 1 illegal: No proof kernel
1qN1b1rr/bk3rNn/3Q4/rnqp1n2/1R5P/b5Br/2Q1P3/1R1K1BnN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 c4 g5 h4 f5 a4 b5 c5 d5 a5 Kd7 a6 Kc6 a7 g3 Qa4 b3 Qa5 g4 Qa6+ Qb6 Nh3 d3 Ng5 b4 Ra3 d2+ Kd1 b2 Rf3 g2 Rg1 b3 Rh1 g1B Bg2 g3 Qd3 Nd7 Nh7 Ne7 Rh2 Nf6 Qc4 Bd7 Bh1 g2 Rf2 f3 Qb4 f4 Na3 b1N Ng5 b2 Nb5 Nf5 Nf7 Nh7 Nbd6 Be8 Ng5 Na3 Nge4 b1Q Ng3 Nb5 Qc4 Kc7 c6 Qc5 Qc2 Qbb4 Rf1 f2 Rh3 f3 Ba3 Rb8 a8Q Qb2 Re1 f1R Qa6 f2 Bb4 Rd8 Bc3 Ra8 Be5 Kb8 Qa3 Ra5 c7+ Ka7 c8N+ Ka8 Nf7 Kb7 Nh6 Be7 Bf4 Qe5 Qb4 Qb8 Bc7 Bd6 Qf4 Be7 Qd6 Qe3 Qe6 Nfd6 Nhf5 Bf8 Qh6 Nf7 Bf4 Ba3 Qd6 Nh6 Be5 Rg8 Ng7 Rf8 Qb3 Qea7 Kc2 d1R Ne6 Rd3 Rb1 Rh8 Bf4 Re3 Kd2 Re1 Qc2 f1R Be5 Rff8 Rb4 Ra1 Ng7 Raf1 Rb1 R1f2 Kd1 R2f7 Bf4 Bf2 Be5 g1N Bg2 Nf5 Nh1 Rg3 Bf1 Rfg8 Bf4 Rc3 Rg3 Re3 Rg4 Rh3 Bg3 Qb6 Rd4 Q6c7 Rg4 Ba7 Rgb4 Qc5
2Kn1r1N/2b3nn/nR2bB1B/1bP1n2q/q2k3b/3rpQ2/3qP2B/1QR3N1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bd2 h3 Bg2 hxg2 Bg5 fxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 h4 g5 c4 b3 a4 b2 c5 d3 h5 d4 a5 d2 h6 g3 h7 d3 a6 g4 a7 Nf6 Nc3 b1Q+ Qb3 d1N f3 d2 Nd5 Qf5 Qa3 Ne3 Qa2 d1Q Qa5 Qh5 Ba3 Nf5 Rc1 Ng7 Ne3 Q8d2 Qb6 e6 Qa6 Be7 Qa5 Rd8 Kb6 Rd4 Kc7 b5 Bb2 b4 Rh4 b3 Ba1 b2 Qb4 b1B Bb2 Bd3 Nh3 g1N Qa3 g2 Ng5 g3 Qb3 Nh3 Nd5 g1N Nf4 g2 Qc2 Bda6 Ng6+ Kd5 f4 e5 f5 e4 Qd3 e3 Nh8 Qa4 Qb1 Rd3 Rb4 Nf4 Be5 Nf3 Nh3 g1B Rb6 Bh2 Ng1 Bb5 Bd6 Bcd7 Kb7 Kd4 Kc7 Ng4 f6 Ng5 f7 Na6+ Kb7 Rd8 a8Q Nfe6 Bf4 Bg3 Bd6 Bh4 Bh2 Rg8 Qf8 Ne5 Qa8 Bd8 f8B Nf5 Bg7 Bc7 Bh6 Nfg7 Qf8 Bc4 Qf7 Bdb5 Qf3 Nd8+ Kc8 Rf8 Ng6 Nf5 h8B Nh7 Bf6 Ng7 Nh8 Be6+
2KN3Q/1BN5/bn6/2P3nq/5PbR/Rrb2bpn/1Qq3k1/BRr1nrn1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 a5 e5 a6 e3 Kd3 e2 h5 e1N+ Kd2 Ke4 h6 g3 a7 d3 h7 g4 Rh5 g2 Ra5 g3 Rh4 b3 Kc3 d4+ Kb4 d2 Rh3 b2 Qh5 d1B Ra1 d3 Na3 b1Q+ Bb2 d2 Qh6 Nd3+ Kc3 b4+ Kc4 b3 Kb5 Bf3 Bd4 d1B Ne2 g1N Qb6 b2 Qd6 Nh6 Rh1 Qc2 Qb6 b1R+ Ka5 Ba6 Bb2 Qh4 Bc1 Nf7 Nd4 Ng5 Qd8 Rb3 Nc6 Bg7 Rb1 Nd7 Qb8 Qh5 Bg2 Nf2 Rh4 Nfh3 Bb2 Ke3 Qb6 Kf2 Nd8 e4 Nb5 e3 Ba1 e2 Nc7 e1N Qb7 Re8 h8Q Bc3+ Qb4 Rb8 a8R Re4 Ra7 Rc4 Bh1 Bg4 Bb7 Bdf3 Ra8 Kf1 Ra7 Kg2 Ra8 Ne5 Kb6 Nd7+ Ka7 Rd4 Qa3 Rd1 Qb2 Rc1 Bc6 R8b4 Bb7 Nf8 Kb8 Nd7+ Kc8 Rd4 Qf6 Rd2 Qg7 Rf2 Qh8 Rf1 Ra7 Bc4 Ra4 Ba6 Ra3 Nb6+
2r1QNN1/2brB2r/n3Q2r/Pb1P3R/8/1nrb1p1n/KnBq4/2N1Rq1k w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Ke7 Kd2 Ke6 Kc2 Kf5 Kb2 Ke4 g4 h5 a4 f5 g5 b5 e3 c5 g6 f3 a5 b3 g7 b4 Ne2 f4 Rh2 h3 Rf2 h4 Qe1 h2 Qd1 h1R Ra2 c3+ Ka1 c2 Ra3 c4 Bg2 c3 Bh3 b2+ Ka2 Ra7 Kb3 Bd7 Qd2 Ne7 g8Q Na6 Qg2 Ng6 Qg3 Bb5 Bg4 h3 Rf1 h2 Bc8 f2 Qh3 Bd6 Bg4 Rd7 Qh5 Bc7 Re1 f1Q Ka2 f3 Rb3 Nf4 Na3 b1R Nc4 Nh3 Ba3 Rc1 Nb6 Qg5 d5 Rc8 Rb1 Ke5 e4 b3+ Ka1 b2+ Ka2 Qf2 Bf5 Qf1 Qd1 Qe3 Be7 Qd2 Nf4 Kd4 Ne2+ Ke3 e5 Kf2 e6 Kg2 Ra1 Rf8 Qe8 b1B+ Kb3 Rg8 Ra4 Rh8 Rh4 Rh6 Bg6 Rg1 Be4 h1R Rh5 Rh2 Bf5 Kh1 Bh7 Rg7 Be4 Rd8 Nd7 Rc8 Nf8 Rgh7 Bf5 Rg2 Ka3 Rgg7 Bg6 Ba2 Bd3 Bac4 Bg6 Bd3 Ka2 Rb1 Nc1 Rb3 Qe2 Rf7 Bd6 Rd7 e7 Rf7 Qe6 Rfh7 Ne2 c1N+ Ka1 Bdc4 Bc2 Nd3 Ka2 Nb2 Nc1 Bd3 Qd8 Rb4 e8N Rc4 Nf6 Rc6 Ng8 Rc5 Bb1 c2 Be7 Rc3 Qe8 Qf2 Ne2 c1N+ Ka1 Qh4 Bc2 Nb3+ Ka2 Qf4 Nc1 Qd2
b1QR4/qN4b1/1nqQR2q/p1q1P1r1/2B1krb1/Rn1bB3/P3b3/n1K1N3 w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 Kd2 Ke7 g4 Kf6 b4 Ke5 e4 h5 g5 a5 b5 f5 b6 d5 b7 c5 g6 d4 g7 c4 Ne2 h3 Qa4 h4 Bb2 c3+ Kd1 h2 Nc1 h3 Ne2 d2 Qb5+ Qd5 Qc4 f3 Qb3 f4 Bc1 f2 Rg1 h1Q Ng3 f3 Be2 f1N Qa3 f2 Bh5 h2 Qc5 c2+ Ke2 d1B+ Kd3 Nh6 g8R Ng4 Na3 Nge3 Qb4 Nd2 Nf1 Bcg4 Ng3 f1B+ Ne2 Nb3 Qa4 Qc5 Nb5 Nd7 Bd2 c1Q Nd6 Bg7 b8Q Nb6 Qd7 Nc2 Bf7 Rh5 Rd8 Rg5 Qbc8 Ra6 Rb1 Nca1 Bc4 Qg2 Qdc6 h1B Nb7 Qh2 Rg2 Qh6 Be3 Ra7 Rg3 Bhf3 Nd6 Rf7 Nb7 Rf4 Qg6 Qc6 Rh3 Qa3 Rg3 Qac5 Rb2 Nc1+ Kd2 d3 Nd4 Bde2 Nc2 Bh1 Ne1 Ncb3+ Kc3 d2 Rb1 d1Q Kb2 Nd4 Rh3 Qda4 Kc1 Qd7 Rb3 Qac6 Ra3 Qdc7 Rh2 Bd3 Re2 Qb8 Qf7 Qa7 Qfd7 Bhf3 Rd2 B1e2 Rd1 Kf6 e5+ Kg6 Re8 Bfe4 Re6+ Kf5 Qdd8 Bh1 Rd2 Ke4 Qd6 Ndb3+ Kb2 Qd7 Nd8 Bb1 Qdb8 Kf5 Rd3 Ba8 Nb7 Qdc7 Rd8 Q7c6 Qbc7 Ke4 Qd6 Nd2 Kc1 Bc2 Ree8 Bcd3 Re6 Ndb3+
4BR1r/R1bb4/2NqQPNk/K1n2q1r/nn6/1N2rrpP/qn3Q2/2n3B1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 a4 Kg6 c4 e5 f4 d5 h3 b5 a5 g3 a6 g2 c5 b3 a7 b4 f5+ Kh6 c6 g5 f6 b2 c7 b3 Ra5 g4 Be2 d3 Kc3+ d2 Rh2 g3 Ba6 e3 Qg4 d1N+ Kd3 d4 Kc4 e4 Kb5 d3 Nd2 b1Q Nf1 d2 Rh1 b2 Qe6 e2 Qe8 e1R Qe7 e3 Bb7 e2 Ra4 Nc3+ Ka5 Nd7 Nf3 g1R Ka6 Nc5+ Kb6 Qf5 Bc6 b1Q+ Rb4 Qd6 Qe6 Qa2 Nh4 N3a4+ Ka5 Bd7 c8N Ne7 Ng6 Nd5 Rb8 Nb4 Nce7 Rh7 Bb2 d1N Nd2 Rgf1 Nb3 Rf3 Bd4 Ndb2 Bg1 Rh8 Bb5 Rh7 Nc6 Be7 Rb6 Rah8 a8Q Bd8 Qa6 Bc7 Qa7 Bb8 Ra6 Ra1 Qb6 e1N Ra7 Ned3 Rh2 Rc1 Re2 Rc3 Re4 Nc1 Rg4 Ne4 Qf2 Nec5 Rd4 Rce3 Rd1 Ne2 Ra1 Nc1 Ra8 Ba7 Rf8 Bb8 Rb1 Nc3+ Kb6 Be8 Qg8 Kg5 Qe6 Qa4 Ra1 Rh5 Ra2 Kh6 Ra3 Qd1 Nce5 Qa8 Bd7 Qd6+ Nc6 Qa4 Na1 Qb3 Ra7 N3a4+ Ka5 Qa2 Nb3 Bf7 Qe5 Be6 Be8 Bd7 Qe6 Bc7+
brQ1Kn2/3b4/BQR2p2/n2b1RP1/nbN4r/4Nq2/2PBk1N1/2rrqr2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 a4 b5 g4 d5+ Kd3 Ke5 e4 b3 a5 b4 a6 b2 a7 f3 g5 b3 Ra3 f2 Rh3 f6 Bg2 f1R Ra4 Ne7 Rb4 Qe8 Rb7 Nec6 Re7+ Be6 Be3 Na5 Bh1 Nd7 Nc3 b1R Na4 b2 Nc3 Rc1 Rg3 b1N Rf7 h3 Rf3 h4 Bd2 h2 Nh3 Rb8 a8Q Bb4 Nf4 h3 Ng2 Nf8 Rc7 Rh4 Rc6 Qe7 Qe1 Qb7 Nd1 Nc3 Rf4 Na4 Qf2 Qe7 Nde3 Qe8 Ke2 d3+ Kf3 Kd4 Rf5 Qe7 e5 Qb7 Be1 d2 Qa6 d1R Bd2 Qe7 Qc8 Qe8 Kg3 Ke4 Qg1 d4 Qf2 d3 Qg1 Ba2 e6 Qh5 e7 Be6 e8N Qe2 Be1 d2 Nd6+ Kd4 Ndc4 Qd3 Nf4 Qb3 Bd5 h1B Ng2 h2 Bf3 Kc3 Be2 Kd4 Ne5 Qa3 Ba6 Qd3 Nc4 Qe2 Nf4 Bhd5 Nfg2 h1B Qf2 Rb1 Qg1 Rdc1 Qf2 d1Q Qg1 Qdd3 Bd2 Rcd1 Qf2 Rbc1 Qg1 Qe1+ Qf2 Rh3+ Kg4 Qa3 Qh4 Qd3 Kh5+ Qe4 Kh6 Rh2 Qh3 Qf3 Kg7 Ke4 Qg3 Rh4 Qh2 Qf4 Qg1 Kf3 Ng4 Ke2 Qb6 Qf3 Ng4e3 Bd7 Rc7 Ba8 Kf7 Be6+ Ke8 Bad5 Ng4 Ba8 Rc6 Qf4 N2e3 Bhd5 Ng2 Qf3 Ng4e3 Bd7+
3BK3/2br2Q1/1q1qprbN/N1knRrR1/P1B4q/2Qq4/1P2b2N/q2n3r w - - 0 1 illegal: No proof kernel
Qn1R4/5Nk1/N2pnb2/4B2b/bq2q2n/4rRK1/Bn1P1P1n/Qbr2Q1r w - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 c4 gxh4 b5 a6 Qc2 axb5 Qb3 bxc4 Qd1 c3 a4 Kf7 g4 e5 a5 b5 a6 h5 g5 c5 a7 h3 g6+ Kg7 Bb2 d6 Ne2 c4 Ng1 e3 Be2 b4 Bc1 h2 Ra6 c2 Ra2 e4 Rb2 c3 Nh3 h4 Bh5 b3 Ng5 h3 Rg1 h1Q Be2 h2 Bh5 Ne7 Nf3 Nd5 Na3 Qa5 Ke2 Bd7 Ng5 Nc7 Re1 Ne6 Nf7 Be7 Rg1 Bf6 Rb1 b2 Ne5 Qb4 Nec4 Ba4 Ra1 b1B Bb2 c1R Rg3 c2 Nb5 Qg2 Qg1 h1B Rf3 Qg4 Qe1 Qf5 Kf1 e2+ Kg1 e3 Kh2 Bg2 Qf1 e1N Be5 e2 Kg3 Qe4 Nc7 Rh7 Bg4 Rh1 Na6 Bh3 Bh5 Ng2 Raa3 e1N Rac3 Kg8 g7 Bg4 Bf7+ Kh7 Rce3 Nh4 g8Q+ Kh6 Qd8 Kg7 Qa5 Bh5 Rb3 Neg2 Bg8 Ne3 Rc3 Ng4 Bf7 Bd7 Qa1 Nh2 Rb3 Ba4 Rbe3 Nd7 Rb3 Re8 a8Q Nb8 Rb2 Qa3 Rb7 Qb4 Rd7 Rd1 Rd8 c1N Bb2 Re7 Ne5 Nd3 Bg8 Re1 Nf7 Rc1 Be5 Nb2 Ng5 Nc7 Ba2 Ne6 Nf7 Rec7 Bd5 R7c3 Ba2 Re3
4q2r/R2q3B/n1rpNBPq/k3n1N1/2q2bRb/2qnQP2/2Q2RnK/5b2 w - - 0 1 illegal: No possible last move
1nBb2qN/2b3rr/2P2b2/Q3qn2/R3R2b/QQ2B2k/b1KqpPN1/5n1n w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 c4 Kf5 a4 e5 c5 d5 a5 g5 a6 b5 h5 b3 c6 b4 a7 d3 h6 e3+ Ke1 g3 h7 b2 Rh3 d4 Ra3 e4 Qe2 g4 Kd1 d2 Qe1 g2 Ra1 e2+ Kc2 d1N Bf4 b3+ Kd2 d3 Na3 b1N+ Kc1 e3 Ra2 g3 Ra1 Kg4 Rh5 Bg7 Qc3 e1B Rh3 e2 Bh6 Nd2 Qc5 Bf6 Qc2 Be6 Rh2 Ne7 Nb1 Ne4 Qc5 Ba5 Qc2 Ne3 Qa2 N7f5 Qa4 Qg8 Bg7 Bad8 Nc3 d2+ Kb1 b2 Nh3 g1B Nd5 g2 Qa3 Neg3 Ng5 Nh1 Nf4 Bc4 Rh6 Bh2 Nf7 g1B Ng2 Bhc7 Qb3 Bg3 Ra4 Bgh4 Bf8 Bh2 Bc5 Bhc7 Rh5 Nd1 Be3 Kh3 Kc2 Be6 Qa3 Ba2 Re4 Qg3 Rg5 Qe5 Rgg4 Rg8 h8Q Rg7 Qg8 Rh7 Nh8 Rg7 Bb6+ Nde3+ Kd3 Rh7 Qgb3 Rg7 Bd4 b1Q+ Kc3 d1Q Rgf4 Nd7 Rg4 Rc8 a8Q Nb8 Q8a5 Qbd3+ Kb2 Qc4 Rgf4 Qg8 Kc3 Qc1+ Kd3 Ng4 Be3 Nh2 Ra4 Bb6 Rfb4 Rcc7 Re4 Qe1 Kc2 Rcf7 Qbb5 Bbc7 Qbd3 Rh7 Qdb3 Rfg7 Kd3 Nh6 Nf4+ Kg4 Kc2 Qb4 Bg2 Nf1 Bh3+ Kg5 Be6 Nf5 Bc8 Kg4 Ng2+ Kh3 Nf7 Qbd6 Nh8 Qd2+
nnqnk1q1/1qR2q2/2PbB1B1/Q7/Kbbr1B1r/2bQ1N2/pR5P/2q1N3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 b4 a5 e4 g5 c4 f5 Kc2 d3+ Kc3 f3 b5 d4+ Kb2 a3+ Kb3 a2 e5 g3 c5 f2 b6 g2 b7 g4 c6 d2 e6 a4+ Kb2 a3+ Kb3 f4 e7 d3 Nh3 g1Q Be2 f1Q Nf2 f3 Nc3 g3 Kb4 g2 Kb3 Nh6 Nb5 Nf7 Kb4 Be6 Ng4 f2 Nc3 Qc8 Ne5 Ra4+ Kb5 Nd8 Nb1 Rhh4 Bg4 Rd4 Bh3 Bc4+ Ka5 Qe2 Bf5 f1Q Be4 Qf7 Nf3 Qef1 Qa4 d1Q Ne1 d2 Bf5 Qb3 Be6 d1N Nd2 Ne3 Ndf3 Nd5 Bf4 Nc7 Qb4 Qb1 Ka4 Na8 Qa5 Qc1 Rb1 a1B Rb3 a2 Rb2 Qgf2 Rg1 Qg8 Nc2 Qd3 Nce1 Qdh7 Rf1 Qhf7 Rg1 Qfg3 Rf1 g1B Rff2 Nd7 b8Q Q3g7 Qb3 Nb8 Qd3 Q7h7 Rb7 Bc3 Rfb2 Be3 Rc7 Bed2 Bh6 Bb4 Bf4 Bdc3 Rd7 Qff5 Rb7 Qc5 Rd7 Qb6 Rc7 Qbb7 Bd7+ Kf7 e8B+ Ke7 Bg6 Qhf7 Bg4+ Ke8 Be6 Bfd6
7N/n3Rr1B/Q1pN1nb1/P1r1P1bk/7q/b4r1Q/KB2B1Rn/r2r1qb1 w - - 0 1 illegal: No proof kernel
n5n1/q4Qr1/1p1q2r1/BR1bqNPK/3q2B1/4B1R1/q1kbP2n/1N2Qrr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kd6 a4 Kd5 d4 h5 g4 f5 g5 c5 a5 b6 a6 h3 a7 h2 Ra6 h4 Be3 c3 Qd2 Kc4 d5 Kb3 d6 c2 d7 c1Q Ra1 h3 Na3 c4 Qe1 c3 Nb1 c2 Ra4 Qb2 Qc1 Rh7 Bc5 Bb7+ Kf2 f3 Kg3 f4+ Kg4 f2 Nc3 f3 Ra6 Bd5 Be7 Rg7 Nb1 Qe5 Ra2 Na6 Bc5 Nc7 Bg2 f1N Kh5 f2 Qf4 c1R Ra5 Kc2 Nf3 b3 Kh4 b2 Bd4 Bb4 Be3 Bd2 Rg1 h1Q Kh5 Nh2 Qf7 f1R Rb5 Qde7 d8B Q7d6 Be7 Rg6 Nc3 b1Q Nh4 Qa2 Nb1 Rf8 Bf6 Na8 Bf3 Rce1 Rg3 Qg1 Nf5 Rc8 Rb3 Rc7 Bg4 Rb7 Rb5 Re7 Qe6 Reg7 Qf7 Qf2 Be7 Rg1 Bf6 Ref1 Be7 Qff4 Bf6 Qfd4 Be7 Qde6 Bb4 Q6d6 Ba5 Nf3 Rb3 h2 Rb5 h1Q+ Nh4 Nc7 a8Q Nh2 Nf5 Qhe4 Qd8 Na8 Qdf6 Q4f4 Qd8 Qc7 Qd6 Qa7 Qb4 Bc1 Qe1 Bd2 Rh3 Qd6 Rg3 Qfe5
1R3nQ1/1r2bn1P/1Qq1n3/N6B/1q1Rp1P1/B1r4q/Nn1R3b/1K1bk1nq w - - 0 1 illegal: No proof kernel
2B2Q2/3rn1P1/4bb1n/p2r3k/qb2Rq1B/1rqPr2Q/2N3Rb/Q1b1N1K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 e4 c5 g4 f5 b4 Kf7 g5 Kg6 e5 a5 e6 a3 b5 f3 b6 h3 b7 h4 d3 h2 e7 h3 Qc2 a2 Bd2 f4 Na3 c3 Nb1 c4 Qb3 c2 Qb6+ Be6 Qb2 c1B Qe5 c3 Qd6 c2 Bb4 Qe8 Nc3 Ra7 Ba3 Rh5 Be2 Nh6 Nb1 Qa4 Qc5 Nc6 b8Q Rd7 Kf1 f2 Qc4 Bd2 Qbb4 c1B Qcb3 Be1 Qd6 Bb4 Bg4 Be1 Ke2 f1R Nf3 Bg3 Rg1 h1Q Rg2 h2 Ne1 Rf3 Qd4 Qg1 Qh8 h1R Qd1 Qc5 Bb4 R1h4 Na3 Qc3 Nac2 Re3+ Kf1 f3 Kg1 Rh2 Rb1 a1B Ba3 R2h4 Rb4 Rh2 Re4 f2+ Kf1 R2h4 Bh3 Rf4 e8Q+ Rff7 Qf3 Bb4 Qef8 Ne7 Qg4 Rg7 Qh4 Rh7 Bg4 Rf7 Qh3 Rf5 Bb2 Rfd5 Qe5 Rh4 Bf5+ Kh5 g6 Qc4 Bd4 Qc3 g7 Bab2 Bb6 Ba1 Bd8 Bab2 Rg1 Ba1 Kg2 f1Q+ Kh1 Qf4 Rg2 Qca3 Qb2 Q3b3 Qa3 Bf6 Qa1 Qc3 Kg1 Qfe5 Bc7 Qed4 Bf4 Qe5 Bg5 Qb8 Qh2 Qf4 Bh3 Rg4 Bh4 Rgg5 Bf5 Rb5 Bh3 Rgd5 Bf5 Rb6 Qh3 Ra7 Nd4 Bg8 Be6 Bc5 Rh2 Rb3 Bf5 Bb4 Bc8 Be6 Ndc2 Rad7 Rg2 Bh2+
nq2B3/qQ2nbPn/2p2r2/4R1RQ/kb1N3N/2BQ2Kb/1qrqP1q1/4n3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 d4 Kc6 a4 b5 g4 f5 a5 h5 g5 c3 a6 b3 g6 f3 g7 h3 a7 h4 Ra2 f4 Rh2 c2 Ba3 c1N Rg2 b4 d5+ Kb5 d6 h2 d7 h1B Rh2 c6 Rd2 h3 Rc2 b2 Rd2 b3 Rg2 h2 Qc2 Bb4 Qc4+ Ka4 Qd4 Rh6 Qd5 Na6 Rd1 Ne7 Rg6 Nc7 Nd2 b1Q Qg5 b2 Bh3 Nd3+ Kf1 f2 Ndf3 Ne1 Nd2 Bd5 Nc4 h1N Rd6 Bf7 R6d5 Rf6 Nd2 Qa2 Ndf3 b1Q R1d2 Qab2 Re5 Q1c2 Rd6 Qd2 Nd4 Rb8 Qf5 Na8 Rdd5 Rb5 Qh5 Rc5 Ngf3 Rc2 Nh4 Qc7 d8Q Qb8 Bg2 Bh3 Rb5 Nf3 Qd5 Ng5 Qdf3 Nh7 Qd3 Bhe6 Be4 Bg4 Kg2 f1Q+ Kh2 f3 Bg6 f2 Rd5 Qfa1 Rc5 f1Q Rb5 Qbc1 Bb2 Nf2 Bc3 Bh3 Kg3 Qcb2 Rd5 Bfe6 Be8 Bf7 Qe4 Nd3 Qe3 Ne1 Qd3 Qaa2 Rc5 Qd5 Rb5 Qd7 Rc5 Nb6 a8Q+ Qda7 Qb7 Na8 Rb5 Nc7 Rg5 Na8+ Rbe5 Qg2+
1BrN4/nnb1N1P1/1P1bQ1R1/5p2/rB2Bqq1/1R1q2bQ/b4bKr/3kr3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 e4 Kc6 b4 Kb5 d4 c5 g4 a5 d5 f5 e5 h5 e6 f3 d6 h3 d7 h2 g5 a3 g6 a4 g7 h4 e7 h3 e8Q a2 Qee1 a3 Qb3 Bd6 Nd2 Nf6 Ne4 Ra4 Bh6 Nc6 Be3 Na7 Rc1 a1B Ng3 a2 Rc2 Bae5 Bf4 a1B Qec3 Ne8 Qb1 Qg5 d8B Qg4 Bh6 Be6 Ne4 Bg3+ Ke3 f2 Qe5 Bd4+ Kd2 Bd5 Bd3 f1Q Ne2 Bdf2 Rg1 h1R Rc3 h2 Be3 Bc7 Qd1 Nd6 Ng5 Nb7 Be7 Rc8 Ne6 Qfh3 Rg2 Re1 Nd8 h1R Rb3 Bg8 Be4 c3+ Kd3 c2 Bf4 c1B Qe6 Ba3 Qd2 Bf7 Qe3 c4+ Kd4 c3 Bed6 c2 Nc3+ Ka6 Nd5 Kb5 Ne7 c1Q Rg1 Qf1 Ke5 Qd3 Qf3 Kb6 b5 Ka5 b6 Bg8 Qg2 Bb4 Qh3 Kb5 Qd7+ Kc4 Rg2 Bd5 Qe6 Bbc5 Rb4+ Kc3 Rb3+ Kc2 Rg1 Bh4 Bd2 Kd1 Bb4 Qge2 Rg6 Qg4 Ra3 Ba2 Rc3 Qge2 Rb3 Qcc4 Kf4 Qh5 Be5 B5d6 Qe3 Qh6+ Kf3 Bhg3 Kg2 Qg5 Bf4 Qg4 Be5 Qc1 Qh6 Qcd2 Qh3 Qdf4 Ng8 Bf8 Nf7 Bd8 Bb8 Bc7 Nd8 Bfd6 Ne7 Rh2+
2n3n1/b3bP1r/2bbbQ2/2Q1RRK1/3qPrN1/4N2B/3BNp1n/kr3nq1 w - - 0 1 illegal: No proof kernel
1r2r2r/K3qP2/P1QnR2b/Q6b/qrqrqnk1/1N6/p1B1R3/B1NB2n1 w - - 0 1 illegal: No proof kernel
n1b3bn/4bPqP/NRr2q2/2pQ1B1N/4qQKR/2k5/Qqn1r3/B1b1b3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 h4 Ke6 a4 Ke5 f4+ Kd4 f5 c5 f6 e5 f7 b5 a5 g5 d3 g3 a6 c3 a7 e3 Kf3 c2 h5 g2 h6 e2 Nh3 g1Q Nf4 e1B Ng6 e4+ Ke2 e3 Kf3 b3 Qd2 b2 Ra3 e2 Qd1 b4 Ne7 b3 Nc3 b1Q Ncd5 b2 Ng6 g4+ Kf4 g3 Nb4 g2 Rh2 Na6 Ra4 Be7 Rh4 Kc3 d4 Qh1 d5 g1Q d6 Nc7 d7 Qa1 Qd6 b1B Bg2 Qb2 Be4 Rh7 Be3 c1B Bf5 Rb8 a8Q Rb6 Qg2 Na8 Kg4 Rc6 Qf4 Qb6 d8Q Bd3 Qgg3 Qe4 Qd5 Qd8 Ra5 Qd6 Na6 Qf6 Rb5 Rg7 Kh5 Bb1 Qgf2 Bd3 Ne5 Rg2 Nd7 Rh2 Rb4 Qgg7 Bd4+ Kc2 Qa2 Qfe6 Qg5 Bf8 Qfe3 Qh1 Qa3 Bed2 Qeg3 e1N Rb5 Ne7 Bg6 Qb4 Qc7 Re2 Ba1 Qbb2 Bh7 Ng6 Rb6 Nh8 Qa2 Be7 Nf6 Kc3 Qgd5 Nc2 Qf4 Be1 Bg6 Bf5 Bh7 Bh3 Be4 Bf5 Bd3 Bh7 Bf5 Bg8 h7 Qh6+ Kg4 Qhe4 Nh5 Qef6 Be6 Qf8 Bf5 Q8g7+
Bbqrq3/q3Prq1/Q6R/3p2B1/q1r4Q/2b1nRKb/r2P3N/1nkNR3 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 Ke7 a4 Kf6 g4 Ke5 e4 Kd4 e5 b5 e6 c5 g5 f5 a5 h5 a6 d5 a7 b4 g6 h3 g7 b3 Bd3 h2 Qe1 h4 Ra5 b2 Bb5 c4 Ra6 Kd3 Qf1+ Kc2 Nf3 h3 Qg1 Ne7 g8R Nd7 Ra2 Ne5 Rg5 Qe8 Nh4 f3 Bc6 f4 Bb7 Nf5 Rg3 Ne3 Bc6 Bd6 e7 Bb8 Ke1 f2+ Ke2 f1R Rg7 Rd1 Kf2 f3 Kg3 f2 Bb5 f1R Ra3 Rf7 Rg4 Rdf1 Ba6 R1f4 Rb3 Qa4 Nf3 Rd8 Qe1 Be6 Rg1 h1Q Rb7 h2 Rb5 Qg2+ Kh4 h1Q+ Kg5 Qh8 Rg3 Bh3 Bc8 Qe8 Nh2 Rd4 Kh5 Rdf4 Rf3 Qg7 Rg6 Rg4 Qg3 Kd1 Nf1 c2 Bb7 c3 Qh4 N5c4 Nh2 Na3 Rh6 Rb4 Rbb6 Rc4 Rbe6 Nb5 Na3 b1Q Bb2 c1B Nc2 Na3 Ba1 Bb2 Bc6 Ng2 Ne3+ Kc1 Nd1 c2 Re1 Qa2 Bb7 B2e5 Bd4 Qa1 Be3 Nb1 Bf4 Ne3 Bg5 Bc3 Bc6 Bg3 Bb7 Rac8 a8Q Bb8 Qa6 R8c5 Ba8 Ra5 Qf4 Q1a3 Kh4 Qc5 Kg3 Qa7 Ref1 Qb3 Qfd6 Ra2 Qf4 Qba4 Re1 Rc5 Rc6 Ba1 Nf2+ Kb2 Re6 c1Q Rf6 Qc3 Nd1+ Kc1 Rg6 Qcc4 Rd6 Bc3 Qh4 Rc7 Rh6 Qg4+ Kf2 Qc8 Kg3 Rc4+
1bn4q/Bk1qP3/4bb1Q/1nqp2rn/6b1/RK3R2/rPq1N1B1/b2N1R1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 a5 h4 f5 c4 g5 Kc2 d5 e4 Kd7 h5 Kc7 c5 g3 c6 d3+ Kc3 a3 h6 a2 h7 g2 e5 d2 e6 g4 Rh3 g3 Qf3 d1B Qg4 a4 Rh5 f3 Bh6 f4 Nd2 f2 Qh3 a3 Nc4 f3 Rc1 a1Q Be3 a2 Na5 Bg7+ Re5 Bf6 Bh6 Ne7 Nb3 Qd7 Bf8 Qb1 Nc5 a1B Nb7 Ra2 Kb4 Qc2 Be2 f1Q Nd6 f2 Rf5 Rg8 h8Q Rg5 Bf3 Be2 Be4 Bg4 Ne2 g1Q Q3h6 Qh3 Bg2 f1N Nb5+ Kb6 c7 Kb7 Nbc3 Nbc6+ Kb5 Qhh1 Rf3 Nd4+ Kb4 Nb5 Nd1 Qh5 Q8h7 Qhe8 Bg7 Qh8 Qh1 Qb6 Q7h6 Qf2 Ra3 Qcc5+ Kb3 Qf5 Be4 g2 Bf3 g1B Bg2 Ng3 Rb1 Nc6 e7 Nh5 Rc1 Qff2 Rc3 Qff5 Rf3 Nca7 Rf1 Bh2 Rf3 Bc3 Bd4 Qe4 Bg1 Bf6 Rf1 Qde8 Be3 Bce6 c8R Qd7 Rf8 Bb8 Bg1 Nc8 Be3 Bg7 R8f3 Bf6 Bg1 Qcd6 Bb6 Qc5 Ba7 Qec2+
1B1N1n1b/3P1rB1/3q2r1/Q2Bn3/1Q2rRqp/2N1rb2/Kb1b1P2/2n2kbR w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc3+ e3 b4 Kf4 Kb2 e5 b5 h5 b6 c5 g5 a5 b7 a3+ Ka2 c3 d5 h3 d6 h4 g6 a4 g7 e4 Bd2 h2 Qe2 c2 Qd1 c1B Bb4 c4 Qb3 e2 Be1 c3 Bd2+ e3 Qb2 e1R Qc2 Nf6 g8Q Ra6 Qe6 Ng4 Qd3 c2 Qd7 Ne5 Qg7 Nbd7 b8B Rh7 Qb3 Bb7 Bd3 Bf3 Ba5 e2 Bg6 Bd2 Qgg8 Rf7 Nc3 c1N+ Kb1 a2+ Kb2 a3+ Kc2 Qe7 Rb1 a1B Bd8 a2 Ba7 Bb2 Bb8 a1B Be4 Qg5 Bf6 Qg4 Qd5 Bg7 Qd4 Nf8 d7 Bh8 Bg7 Rg6 Qa4 Qe6 Qb5 Qd6 Nh3+ Kg4 Ng5 Kf4 Rf1 h1Q Bd5 Qg1 Qa5 Kg4 Ne6 Kh3 Qb4 Qg4 Nd8 Kh2 Rh1+ Kg2 Rh2+ Kg1 Qh7 Kf1 Qh5 Bf4 Rh3 Bh2 Qg5 Bg1 Rh1 Rd1 Qh5 e1R Qf5 Rd4 Qg5 Na2 Kb3 Re4 Rd1 Bc1 Rd4 Bd2 Rc4 R4e3 Rf4 Nc1+ Ka3 Nb3 Qf5 Bb2+ Ka2 R1e2 Qd3 Re4 Qa6 Re3 Qab5 Re4 Q5a4 R2e3 Qaa5 Nc1+
1Q2r3/BPrk4/n1Rq1Rq1/3q1b1Q/1rq2NNP/1b1qn2B/1b1p2K1/1N1b4 w - - 0 1 illegal: No possible last move
rN1r3Q/P1b3rr/NBnn1qb1/1kr1P2R/N2b2q1/3K2n1/2BR2pQ/1n6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 a4 Kd7 e4 Kc6 h4 g5 c4 f5 h5 b5 a5 g3 a6 f3 h6 f2 h7 f4 a7 b3 e5 b2 c5 g4 Bg2 f1R Rh5 f3 Rh6+ Bd6 Rh5 d3 Rh3 d4 Qe1 b4 Qf2 b3 Qe3 Ne7 Qe2 Nf5 Rh6 Qf6 Rg6 Kb5 c6 f2 Nh3 Rg1 c7 f1N+ Kd1 Nc6 Qc2 d2 Ke2 d1R Ng5 Be6 c8Q Bc7 Ne4 Bf7 Be3 Rc1 Qf8 Nd6 Ra2 Rg8 Qh6 Rgd8 Rg5 Bh5 Qd2 Rc4 Nc5 d3+ Kd1 Rc3 Na6 Rh1 Qf2 d2 Bb6 Rc5 Be4 Rh4 Qh2 g2 Ke2 g1B Qg7 Bd4 Qg8 Bf7 Bg6 Rh6 Rh5 g3 Qf8 d1R Qe8 Rd3 Bf5 g2 Nc3+ Kc4 Qf8 b1Q Na4 Kb5 Rc2 b2 Rd2 Rf3 Bc2 Rg3 Qg7 Rg4 Kd3 Qd1 Qg8 b1N h8N Ng3 Qg7 Nb8 Ng6 Rh7 Nf8 Nc6 Qh8 Rgg7 Nd7 Qg4 Ndb8 Bg6+
4q1nq/P4R1r/2P1bb2/1Rn3n1/1nQ1NB1k/1BBq2b1/4N1pn/1Q2K1rq w - - 0 1 illegal: No possible last move
K3B3/pP4bR/k3q3/5NnQ/Nn1Brrn1/1bR3rr/P1q1RQq1/r3n3 w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 Kd2 h5 Kc3 c5 Kc4 d5+ Kb5 Kd7 g4 Kc7 e4 Kb7 b4 f5 g5 c4 g6 c3 g7 c2 e5 f3 e6 h3 e7 f4 e8Q d2 Qe5 f2 Qe6 f3 Qf6 h2 Qh4 d4 Na3 d3 Qe1 d1N Bf4 c1N Bg3 d2 Be5 Qd6 Qg4 h4 Bd4 h3 Qf5 Qe6 Qf4 Nc3+ Ka5 d1Q b5 Rh4 b6 Nd3 Bg2 f1R Qee3 Na6 Qd2 Ne1 Qe5 Ne4 Nc4 f2 Qe3 Nf6 g8R Nb4 Rc1 Qc2 Ne2 Bg7 Nc3 Ng4 Re8 Rg1 Qf5 f1R Na4 Rf4 Qh5 Bd7 Re7 Re8 Qf2 Rg8 Bf1 Ng5 Ne3 Re8 Bb5 Rg3 Nf5 Rh8 Rg1 h1Q Rg2 h2 Rf7 Qf1 Re7 h1R Rf7 Qb1 Rc3 Qc2 Rh2 Qg2 Re7 Qd6 Re2 Be6 Be8 Bb3 Kb5 Qe6 Kc5 Ka6 b7 Qee4 Kd6 Rf1 Kc7 Qe6 Kb8 Rhh3 Rh1 Rf8 Ka8 Re4 Nd6 Rff4 Nf5 Rd3 Qg6 Rhg3 Rh7 Rh1 Qh6 Rd1 Qh4 Ra1 Qh5 Rhh3
1b1K3R/pP1q1k2/2q2nr1/b2P1B2/4nRQ1/2nqn1BN/2N1b1rn/4QRb1 w - - 0 1 illegal: No possible last move
1QK1n2b/1PrR3r/4RQ2/b2rB1nN/1k3bPb/N1pBbr2/1b4b1/1q4N1 w - - 0 1 illegal: No possible last move, all moves rejected
2NRQ2n/p2PQrPn/N4n2/B1n3qr/rrr4b/5B2/1k1KR1br/1N3r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 d4 Ke6 b4 Kd5 g5 f5 g6 h5 b5 c5 b6 h3 b7 h4 e3 c3 g7 c4 Na3 h2 Nh3 f3 Nc2 a3 Qd3 a2 Qd2 f4 Qd1 f2+ Ke2 Qg5 Rg1 h1R Qd3 f3+ Kd1 Nc6 b8Q Nf6 Rg4 Nh7 Qh2 Nd8 Qc7 Bb7 Ne1 c2+ Kd2 Rh2 Qf4 Nf7 Be2 f1R Rg2 f2 Qg6 Be7 Nd3 Rab8 Ng1 h3 Qc7 Bf6 Rb1 a1R Qe7 Ra4 Nf3 Bc6 Nc5 Rbb4 Bb2 c1N Bc3 Nd3 Na6 Nc5 Rd1 Rf8 Qh5 Nh8 Qg6 Rfh1 Qge8 f1R Rf2 Rf7 Rg2 Rb6 Ba5 Rbb4 Rf2 Qg3 Rg2 Bh4 Rf2 Qe5 Rg2 Ke4 d5 Ba8 d6 c3+ Kc2 Bc6 Nd2+ Kd5 e4+ Kd4 Bh5 Qg5 e5 Bd5 Kc1 c2 e6 Kc3 Re2 Bg2 Bg4 R1f4 Bf3 Rc4 d7 Ne4 Rde1 Nef6 Rf1 Qg6 Rfe1 Rf1 Nb1+ Kb3 Kd2 c1N Bc7 Ka2 Ba5 Nd3 Rc1 Kb2 Rc3 Rg4 Rc8 Rgc4 Rd8 Nc5 Qd6 Bf2 e7 Rhh1 Qf8 h2 e8N Bg3 Qde7 Qg5+ Qe3 Rhg1 Qg8 h1R Nd6 Rh5 Nc8 Rgh1 Qf8 R1h2 Qe8 Qf5 Q3e4 Bh4 Q4e7 Qg5+
2bkb1BR/1Qb3R1/N5n1/n5K1/2nqbB1n/2QP1pN1/r1bn1P2/1R1r3n w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 Ke2 f5 Ke3 c5 Kf4 h5 a4 b5 g4 e5+ Ke3 h3 d3 c4 a5 h4 g5 f4+ Ke2 c2 a6 e3 Kf3 h2 a7 e2 g6 e1N+ Ke4 c3 g7 h3 Nf3 b4 Ng5 b3 Bd2 c1N Nf3 b2 Qa4+ Nd7 Kf5 e4 Nh4 e3 Qd4 e2 Ra3 c2 Nc3 b1B Qe3+ Ne7+ Kg4 Nf3 g8Q e1N Ng2 Nb3 Qc4 c1N Qb4 Nb6+ Qe6 Qd4 Qb5+ Kd8 Qa4 Na5 Qb5 Ne2 Qe5 Ng3 Nh4 Nbc4 Bg2 Ng6 Nb5 Bc2 Nf5 Nfh4 Qf7 Nef3 Nc7 Bd6 Na6 Bc7 Rb1 h1B Be3 Nfd2 Kg5 h2 Bd5 Re8 Qh7 Bg2 Bg8 Nh1 Ng3 Bc6 Rab3 Re6 Rb7 Be8 Qc5 Rc6 Qa3 Rb6 Qc3 Rb2 Qf7 Rb8 a8R Ra2 Rba7 Rbb2 Qe6 Ra1 Qb6 Rba2 Qb8 Be5 Rg7 Bc7 Rb3 Rd1 Qb7 Bb6 Rb1 Bc7 Nf1 Ng3 Rb8 h1B Ra8 Be4 Rb8 f3 Bf4 Nh1 Ng3 Bd5 Qcb3 Bd7 Nf5 Ke8 Qc3 Be4 Ng3 Bb5 Bf7+ Ke7 Rb3 Bcf5 Rh8 Bc8 Bg8+ Kd8 Rb1 Be8
Q3RBnq/3qb1b1/2bR1b2/2r2k1r/rnP4Q/1N1rQPK1/1q1p4/4N1nB w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 c4 Kf6 a4 b5 f3 h5 Kf2 d5 a5 e5 a6 d3 a7 h3 g5+ Kf5 g6 b3 g7 d2 Be2 b4 Ra5 d4 Rc5 e3+ Kg3 d3 Bf1 b2 Qa4 d1R Qc6 h2 Ne2 b3 Nbc3 b1N Ng1 h4+ Kh3 b2 Nge2 Qd7 Rg1 h1R+ Kg2 h3+ Kg3 h2 Na2 Nc3 Qd5 b1Q Qb7 Rh5 Nb4 Nc6 Qb5 Bb7 Na6 Nb4 Nc7 Qb2 Ne6 Be7 Rg2 Bc6 N2f4 e2 Rd5 e1B+ Rf2 Bd2 Ng2 Bdg5 Qb6 Bgf6 Rd6 e4 Re2 e3 Nc5 Rc8 Re1 e2 a8Q Rg1 Bh6 h1Q Nb3 Ra1 Qaa7 Ra4 Qd4 Rd8 Qh4 Rc8 Ra1 e1B+ Qf2 Bd2 Re1 Be3 Qd2 Bed4 Re4 Rd8 Qe3 d2 Ree6 Bf8 Re8 B8e7 Kf2 Ne2 Ne1 Rgg5 Bg2 Qh3 Bh1 Ng1 Qg4+ Kg6 Qf4 Rc5 Qh4 Qf1+ Kg3 Kf5 Nc2 Qfa1 Ne1 Bde5+ Bf4 Nh6 g8Q Bc3 Qh8 Ng8 Bh6 Bcd4 Bf8 Bg7 Nc1 Bdf6 Nb3 Qb7 Re6 Rd3 Rd6 Qd7 Qhh6 Rcd5 Qa7 Rb5 Qhe3 Rc5 Qa8 Bh8 Na5 Qc3 Kf2 Bg5 Bg7 Qab2 Bf8 Qg7 Nb3 Bgf6 Qg3 Qh7 Qh4 Bhg7 Kg3 Qh8
4qrBB/1Q3N1n/1nnQ3K/RNp2qP1/Q1P1br1r/5R2/q4br1/1b3k1b w - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 Kf2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Ke4 a4 b5 c4 f5 d4 h5 g4 e5+ Kg6 h3 g5 f4 d5 h2 a5 h4 d6 b3 d7 b4 a6 b2 a7 h3 Qd2 f2 Bg2+ f3 Ra4 f1Q Qe1+ Kd3 Ra2 f2 Ra3+ b3 Qb4 e4 Qa4 e3 Bd2 e2 Bc3 e1Q Ba5 Nf6 Ne2 Qd2 Bd5 Rh4 Qb4 Bc5 Qb7 Nc6 Qb8 Bb7 Ra4 Rg4 Ra2 Qe8+ Bf7 Nh7 Na3 b1N Ra1 b2 Kg7 Nc3 d8Q+ Nd5 Bg8 b1B Qd7 Qa2 Qdc8 Nb6 Nc3 Ke3 Ncb5 Ke2 Rg1 h1B Kh6 h2 Nd6 Bhe4 Rg3 h1R+ Rh3 Rhg1 Bc3 R1g2 Bh8 Ke1 Qd8 Qd3 Re3+ Kf1 Rf3 Qd5 Qbc8 Qf5 Nf7 Nd4 Qdd7 Bd3 Kh5 Kg1 Re3 f1R Bf6 Qe7 Nc2 Re2 Qd6 Bh1 Bg7 Bde4 Qh6 Qb3 Qd6 Rff4 Qb7 Kf1 Bh8 Reg2 Na3 Rf8 a8Q Qe8 Nb5 c6 Ra3 Qa2 Rh3 Ne6 Rhc3 Nd8 Kh6 Bf2 Rf3 c5 Qa5 Nc6 Qb4 Ke2 Ra5 Kf1 Qa4 Rh4+
Q1Rn1q2/2BKr3/B1N2p2/P1bRN2n/1R3P1Q/1n1n2rq/2q1r3/1bq2bk1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 a4 Kd4 g4 b5 a5 c5 g5 h5 d3 e3 g6 e5+ Kf3 h3 g7 e4+ Kf4 e2 f3 e1R Qe2 h2 Qf2+ e3 Qc2 c4 Nh3 b4 Qb3 h4 Bg2 c2 Nc3 e2 Ra2 Nc6 Nb1 c3 Qe6 b3 Kf5 b2 f4 Ra6 Rf1 h1Q Bd5 Nf6 g8R Qh2 Bc4 Bc5 Ng5 h3 Nd2 Rh4 Rf3 b1B Ra4 Rg4 Bb2 c1N Rb4 Nh5 Rf8 f6 Nf7 Qe7 Nd8 Nb3 Re3 Qg2 Re5 h2 Rh8 Bb7 Qg8 h1Q Qg5 Qd6 Qh4 Qhh3 Rhe8 Qf8 Ke6 Qe4 Nf3+ Ke3 d4 c2 d5 c1N d6 Rg3+ Qg4 Kf2 d7 Rb6 Ba6 Qc2 Rg5 Nd3 Be5 Ba8 Bc7 Kg2 Rf5 Kf2 Qh4 Kf1 Nd4 Kg1 Nf7 Bb7 d8Q Ba8 Qb8 Bb7 Rc8 Nd8+ Kd7 Bg2 Qa8 Re6 Rb6 Bf1 Rg5 Rc1 Rb7 e1Q Rb4 Rd1 Rf5 Rd2 Rd5 Qec1 Nc6 Rde2 Nfe5 Re7#
2Kr4/1r6/1b2P3/bRn1qQN1/2QN3B/nRp1rnq1/BRP2qb1/nr2k3 w - - 0 1 legal: proof: g4 e5 h4 a5 d4 exd4 b4 axb4 g5 f6 Bb2 fxg5 Ba3 gxh4 Bc1 h3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 f4 b5 e4+ d3 a4 g5 f5 c5 a5 d5 a6 h5 a7 g4 f6 d4 f7 b3 Qe2 b2 Rh2 g3 Bf4 g2 Nd2+ Kc3 Bg5 b1N Qe1 c4 Qf2 h4 Be2 b4 Nb3 d2 Bf4 d1R Bh6 d3 Qf5 d2 Qf6 Qd5+ Kf4+ Qe5+ Ke3 Rh7 Ra2 Na6 Na1 b3 Qc6 b2 Qd5 Bb7 Kf3 Re8 Kg4 Nf6+ Kf3 Na3 a8R b1N Rh1 h2 Bd3 h3 Bf4 Nc5 Qd8 Nfd7 Kg4 Nb3 Ra4 Ndc5 Nf3 g1B Qh4 Rd8 Be3 Re1 Bg5 d1Q Rb4 Re3 Rb2 N1d2 Rb5 Qf1 Be7 Rg7+ Ng5 Nf3 Bf6 Bd6 f8Q Kd2 Be7 c3 Qf5 Bf2 Bc4 Bc7 Bd5 Qd3 Rhb1 h1Q Be6 h2 Bd5 Nc1 Nb3+ Ke1 Nd4 Ba5 Ba2 Qhf1 R2b3 h1R R1b2 Bc6 Bf6 Rb7 Be7 Qh8 e5 Bd5 e6 Qe5 Kh5 Qg1 Kg6 Qgg3 Kf7 Qf1 Qhe4 Bg1 Qd3 Qff2 Qc4 Nh2 Qf6 Bg2 Qf4 Nf3 Qf5 Rd5 Ke8 Rdd7 R3b4 N1b3 Bf6 Na1 R4b3 Rdc7 Kd8 Rd7+ Kc8 Rd5 Ne2 Rd1 Nd4 Rh8+ Bd8 Rb1 Ne4 Re8 Ng5 Nd3 Qb4 Re2 Qc4 Qf1 Nc6 Bgb6 Nd4 Nc5 Ne4 Rh8 Qf6 Re3 Qf5 Rh4 Bf6 Qff2 Be7 Rh7 Bh4 Rhd7 Ng5 Rd8#
1bn4N/QQ2b2B/RNqnPb1q/1r1rP1p1/q6k/r2n1RRr/5B2/3b2K1 w - - 0 1 illegal: Other
n1k2n1N/1rn3rB/q1q1p3/1qQRB3/qrb3r1/1N1PRK2/bP5b/3R2Q1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 g4 c5 f4 h5 g5 a5 d3 c3 f5 h3 g6 e3 g7 h4 f6 c2 f7 c4 Nf3 a3 Qd2 a2 Nc3 a4 Ne4 h2 Bg2 a3 Nd6 h3 Nf5 c3 N5d4 e6 Nb5 Ra7 Qd1 Qa5 Qd2 Nf6 g8Q Rh7 Qe1 Rb7 Na7 Ne8 Qg6 Na6 Bf1 Qb5 Qf2 Nec7 Bg2 Bd6 f8R Rg7 Rb1 a1Q Qh7 a2 Re1 h1R Re8 h2 Qh3 Na8 Nh4 Rg1 Bd5 h1B Qf6 Bh2 Bd2 c1R Qd4 c2 Qf3 N6c7 Qfe4 R1g4 Qg6 Bf3+ Kf1 e2+ Kf2 Be4 Rd1 e1N Bc3 Nf3 Nc6 Ng5 Na5 Nh7 Qc5 Nf8 Nb3 Bf3 Be5 Rb4 Rh1 Rg1 Re1 c1Q Re3 Rgg4 Be4 Qcc4 Bf5 Bd5 Rd1 Qc6 Qg5 Q4b5 Ng6 Bc4 Re7+ Kd8 Ke2 Bd7 Be4 Kc8 Nh8 Be8 Rd7 Bg6 Bf3 Be4 Rd6 Bed5 Be4 Rf4 Qg1 Rfg4 Rf1 Qd1+ Kf2 a1Q Bh7 Qa2 Rfe1 Qda1 Rd1 Qaa6 Rd7 Re4 Kf3 Q1a4 Nd4 Ba2 Nb3 Bc4 Rd5 Reg4
5K1B/3b3Q/RPn2b2/1nN3PQ/4pnN1/1q3rkq/b1R1Br1r/2qrn1N1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 e3+ Kd3 Kf7 Kc4 Ke6 Kc5 Kf5 c4 Kf4 b4 h5 g4 a5 b5 d5 b6 e5+ Kb5 h3 g5 h2 c5 h4 f3 a3 c6 a4 c7 h3 Be2 a2 Qc2 a3 Bf1 d3 Qd1 d4 Be2 d2 Qf1 d1N Qg2 d3 Bd2 Bg7 Kc5 Nc6 Bc3 d2 Bc4 e2 Bd3 Nge7 Qf1 Kg3 f4 Qg8 Kd6 Ng6 f5 Nf4 f6 Rh5 Bd4 Nc3 f7 d1Q f8Q Bd7 Qe8 Qe1 c8N Nb5+ Kc5 Rh4 Nc3 Ra5 Rc1 a1R Ne7 a2 Ng6 Ra3 Na4 Qf7 Bc4 Rf3 Bc3 Rf2 Nf3 Rb1 Qh8 Rb3 Qh7 a1R Rc2 Qd2 Qc1 Rab1 Re1 h1B Qd1 h2 Ng1 Bd5 Bd4 e4 Ne5 h1Q Rf1 e1N Qdh5 Neg2 Be2 Rbf3 Ng4 Bh8 Rfc1 Ne1 Ra2 Qb2 Rc2 Rd1 Ra3 Ba2 Bf6 Nbd4 Kd6 Qfb3 Nc5 Qc1 Ra6 Qg2 Bg7 Rh2 Be5 Qh3 Bf6 Na5 Ke7 Nac6+ Kf8 Nb5 Bd4 Bf6 Ba1 Bd8 Bh8 Bf6
8/q1N2kqr/P1R2b1B/KN1b3n/2rq1B2/nR1rp3/QPb1Q3/1n1q1B1r w - - 0 1 illegal: No proof kernel
2K2n1k/Bqn4P/BP1Q2Rb/q2rbR1r/1r1Nr2n/q7/2Np4/3n1QQb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 Kf7 Kd5 Kg7 h4 a5 c4 f3 e4 f2 b4 a3 e5 a2 b5 g3 h5 g4 c5 f4 c6 f3 c7 a4 e6 g2 e7 d3 Kd6 a3 Qd2 g3 Be2 f1R Nc3 f2 Qb2 d2 Rh3 d1N Rh4 Re1 Bf1 Re4 Bd2 Nf6 Rf4 Ra5 Nd5 Na6 Ne2 g1Q Qe5 g2 Ne3 Bb7 c8Q Nc7 Nc4 Qh1 Qa8 g1N Ng3 Nf3 Qd5 Nh7 Qf5 Nh4 h6+ Kg8 Rb1 a1Q Qa7 a2 Be3 Ra4 Qfc5 Rb4 Rf5 Qg2 Be2 f1R Na3 Qc3 Rc1 a1B Nc2 Qa3 Bc4+ Bd5 Ne2 Rf2 Ned4 Rd2 Qa6 Qa8 Qab6 Q8a5 Bd3 Bg7 e8Q+ Nf8 Qf7+ Kh7 Qa6 Bc3 Qe6 Bb7 Ke7 d5 Kd8 Qg6 Qeb6 Qc6 Qd6 Bb2 Rb1 Be5 Qbc5 Bc1 Bg1 Ba8 Kc8 Kg8 Ra1 Rh7 Be2 Kh8 Rb1 Rd3 Rb3 Rd2 Rg3 Rd3 Rg6 Be3 Ne6 d4 Qcb6 Rd2 Bf1 d3 Ned4 Rg2 Bf2 d2 Qbc5 Rd7 h7 Rg5 Nf3 Rec4 Qe7 Qe4 Bg1 Rd3 Qed6 Rh5 Qcd4 Qd5 Qg4 B3f4 Ba7 Bh6 b6 Qdb5 Qg1 Be4 Qe6 Qc6 Qd6 Rd5 Qb5 Rcd4 Qe2 Rdc4 Qeg2 Rcd4 Ba6 Rdc4 Q2f1 Rcd4 Nh2 Bh1 Nf3 Re4 Nfd4 Qb7+
rQnb3q/1rbbNk1p/3rRq1n/2R4P/B1Qn4/2PbN2N/q5q1/3KB3 w - - 0 1 legal: proof: e4 f5 g4 fxg4 d4 a5 b4 axb4 d5 c6 Qf3 cxd5 Qd3 dxe4 Qd1 e3 a4 g5 f4 b5 h4 d5 c3 e5 a5 e4 a6 d4 h5 b3 f5 e2 f6 g3 a7 g2 Ra4 d3 Rh4 g4 Nd2 b2 Ra2 b1Q Ra4 b4 Qc2 b3 Ra5 g3 Rd5 b2 Rh3 Be7 Ndf3 Nd7 Nh4 Qa2 Bd2 b1B Ng6 Nb6 Rh1 Nh6 Qd1 Kf7 Rh4 Bd7 Nf8 Nc8 Nf3 g1N Nh2 g2 Rc5 Bd6 Qc1 Bc7 Ng4 Bc2 Ne3 Nf3+ Kf2 e1R Ng6 Nd4 Ne7 Rd1 Be1 d2 Bb5 Bd3 Ba4 Rg8 Rg4 Rg7 Rg6 Qh8 Qa3 Bd8 Qb4 Bc7 N7d5 Bd8 Nf4 Bc7 Nh3 Bd8 Kg3 g1Q+ Kf4 Qg2 Qc4+ Ke8 f7+ Kf8 Ng4 e3 Re6 e2 Ke3 Bc7 Ra6 Ke7 f8N Bd8 Re6+ Kf7 Ng6 Bc7 Bf2 e1B Bh4 Beg3 Ne7 Bge5 Be1 Bd8 Bc6 Bec7 Ba4 Rb8 a8Q Rg8 Qb5 Rb7 Qb8 Rg6 Ngf2 Rc1 Ree5 Qa3 Bc2 Rd1 Ng4 Rd6 Re6 Ra1 Qc4 Qb2 Bb3 Ra8 Bd1 Qa2 Ba4 Qe4+ Kf2 Qg6 Ne3 d1Q+ Bd2 Qdc2 Ke1 Qcb2 Kd1 Qgf6 Be1 Qg2
1B1B1b2/KN3q1p/4k2P/P1rq3r/2n4n/2Bq1Qn1/rbb2R2/rN2q1RQ w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 d5 Bd3 dxc4 Be2 g6 Bg4 fxe4 f5 Ra7 f6 Ra8 Bf5 gxf5 Ke2 Kd7 Ke3 c5 a4 e5 d4 b5 g4 c3 h4 b3 h5 b4 g5 c2 g6 f4+ Ke2 c4 f7 b2 h6 e3 d5 c3 Kd3 e4+ Kc4 f3 Kb5 e2 d6 e1Q g7 e3 Rh2 e2 Nd2 b1R Nc4 b3 Rh1 f2 Na5 f1N Bf4 c1Q Be5 c2 Qd3 b2 Bh2 Ng3 Qb3 Nc6 Ra3 Nge7 g8Q Ng6 Kc5 Ra1 Nb7 b1Q Nf3 Na5 Nd2 Nh4 Ra2 Nc4 Rg1 Ke6 Qf3 Qf6 Qg5 Qcd1 Qgh5 c1B Rb2 Qbc2 Nb1 Qcd3 Kc6 Rg8 d7 Rg5 d8B Qe7 Rc2 Bb2 a5 Ra2 Qh1 Qf6 Q5f3 Rh5 Rd2 Ra6+ Kc7 Rc6+ Kb8 Rcc5 Ka7 Qd5 Rc2 Q1d3 Rd2 Bd7 Rc2 Ba4 Rd2 Be7 f8B Bc2 Bg7 Qf7 Bf6 Bf8 Bc3 Nf1 Bb8 Ng3 Bg7 Qc1 Bc3 e1R Rf2 Qcd2 Na3 Rea1 Nb1 Qe1
N2qBn1b/Q2P1r2/2Pp2r1/NkB1q2n/2bR1R2/1br3Q1/2n2Kb1/r1Q3q1 w - - 0 1 illegal: No proof kernel
1qB4r/1NP1QP1R/k4bn1/7p/5R2/rN4Qq/br3qb1/nQ1KqnBb w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 b5 a4 d5 c4 Kd7 f4 Kc7 g5 Kb7 c5 h5 g6 e5 f5 d3 a5 e3 f6 h3 c6+ Ka6 g7 e2 c7 h2 f7 b3 Ra4 b4 Na3 d4 Bg5 d2+ Kf2 d3 Be3 e1Q+ Kf3 e4+ Kg2 b2 Qc2 d1Q Qc3 b1B Bc5 b3 Nc4 b2 Bb6 e3 Ne2 d2 Kf3 Be7 Qf6 Nd7 Qe5 Nc5 Bh3 Qb3 Nd4 d1N Rg1 Ba2 Nd6 b1R Nb7 Bf6 Qe7 h1B+ Rg2 Qbc3 Nb3 Rb2 Rf4 Bd7 Bf5 Qb8 Ba7 Bb5 Bc8 Bd3 Bb6 e2 Ba7 Ne3 Bb6 Kb5 a6 Nf1 a7 Qed2 Kf2 Be4 Rg6 Qdc2 Rh6 Ka6 Rh7 Qh3 Ke1 Bd5 Bf5 Bdg2 Bc8 Nh6 g8Q Nf5 Qg3 Nh4 Nd2 Nb3 Bg1 Na1 Nb3 Ng6 Bd7 Qf8 Bg4 Re8 Bc8 Qc5 a8Q+ Qa7 Qd8 Re3 Qb8 Qfc5 Qe7 Rd3 N3a5 Ra3 Nb3 Kb6 Qa8 Qb8 Qa4 Qe3 Qab4+ Ka6 Qbe4 Nh2 Qc2 Qf2+ Kd2 Nf1+ Kc1 Ra4 Qb1 Ra3 Qbe4 Qba7 Qc2 e1Q+ Qd1 Qe5 Qc2 Qe4 Kd1 Qb8 Qb1 Qee1+
rQ2b2k/1PNp4/2qn4/q1q2n1r/2nRnqN1/Qr1P1R1R/K3b3/2B1B1b1 w - - 0 1 legal: proof: f4 b5 g4 e5 b4 exf4 a4 h5 Bg2 hxg4 Bc6 bxa4 b5 Qg5 b6 Qd8 Bb5 c6 Bb2 cxb5 Ba3 Bb4 Bc1 Bf8 h4 f5 e4 Kf7 c4 g5 h5 Kg7 e5 a5 e6 g3 e7 a3 e8Q a2 c5 b4 c6 a4 c7 g4 Qde2 g2 Kd1 g3 Kc2 a3 Kb3 f3 Bb2+ Qf6 Rh2 f2 Bc1 f1Q Q2e5 f4 Nf3 g1Q Qd8 g2 Ne1 f3 Qd6 f2 Nc3 Nc6 Rh4 Nh6 Rh2 Ba6 c8R Ne5 b7 Nef7 Rh4 Nf5 Bb2 Be2 Rd1 a1N+ Ka2 b3+ Kb1 a2+ Kc1 Nc2 Ba1 Na3 Rh3 Nc4 Qa3 Qc6 Bb2 Bc5 Nd3 N7d6 h6+ Kh7 Ne5 a1Q+ Nb1 Bh5 Ng4 Be8 d3 Qa2 Nc3 Kg8 h7+ Kg7 Qa7 Qa5 Kb1 Be3 Ba3 b2 Ka2 b1N Nd5 Nbd2 Nc7 N2e4 Rb1 Qc1 Rb4 f1B Qb8 Be2 Qe7+ Nf7 Qc5 N7d6 Ra4 Qcf1 Bc1 Qf4 Qa3 Ba7 Rb4 Qgc5 Ra4 g1R Rd8 Nb6 Rd4 Nbc4 Rf3 Rh1 Rc8 Rh5 Rh3 Rf8 h8B+ Kg8 Bg7 Rf6 Bf8 Rg6 Be7 Kh8 Bh4 Rf6 Be1 Qcb4 Rd5 Bg1 Rd4 Re6 Rd8 Re5 Rf3 Rb5 Rh3 Qbc5 Rf3 Kg7 Rh3 Rb3 Rf3 Bg6 Rh8 Be8 Rh6 Rg5 Rh4 Rh5 Rhh3 Kh8
n2rqb2/kpRBQ1Rn/5n2/5KQ1/1P2qN1B/1qQb4/n2r1r1P/2qb2N1 w - - 0 1 illegal: No possible last move, all moves rejected
Q1rB1rr1/2PQNRN1/n1b2P1K/2kb1n1p/4R1B1/n1n5/B5nr/b1n2q2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 f4 Kd7 a4 Kd6 g4 e5 c4 h5 f5 b5 a5 d3 Ke3 b3 g5 b2 a6 b4 g6 d2 a7 d4+ Ke2 e3 Kf3 h3 g7 e2 Ke4 e1N Bg2 h2 Nc3 b1N Nh3 b3 Nd5 d3 Ndf4 b2 Nf2 Na3 N2h3 b1B Rg1 h1R Qa4 d1R Bf1 d2+ Ke3 e4 Ng6 Na6 Kf4 e3 Rg2 e2 Rg4 Be4 Ne7 Bcb7 Kg5 Nd3 Qd7+ Kc5 Nf4 e1N Bh3 Rc8 a8Q Nh6 g8B Bec6 Ra2 Rh2 Ne6+ Kb4 Rf4 Bg7 Bg4 Ng2 Re4 Ba1 Ng7 Qf8 c5+ Kb5 Rc2 Rg1 Ba2 d1N Rf2 Nc3 Bf4 Rf1 Bc7 Rg8 Bd8 Nc1 Rff4 Qf7 Rf3 Qc4 Kg6 Kb4 Kh7 Bd5 c6 Kc5 c7 Bbc6 Kg6 Nf7 Rff4 Nd6 Kh6 Qe2 Re6 Qe1 Rf6 Rf3 Rf7 Qf1 Re4 Rg3 f6 Rf8 Bd1 Rg5 Ngf5 Rg7 Bg4 Rgg8 Ng7 Nf5+
1N1NQRrR/PB1b2n1/n1rb4/k7/1bpq2r1/PBn2rBn/r4r2/5K1Q w - - 0 1 illegal: Other
Q1n1k3/3rbqqn/2Q1rnq1/1n2n1PB/R3n3/4R3/b2R2pP/3qBKNN w - - 0 1 illegal: No possible last move, all moves rejected
1n1r1RN1/1R5q/2pq2k1/KnQ1bR1b/1nQP3P/2B3NB/qrqnq3/1q6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 g5 d4 b5 Kd2 f5 h4 Kf7 e4 f3 e5 g3 e6+ Kg6 a5 c3+ Kc2 f2 Kb3 f4 e7 c6 e8R c2 a6 g4 a7 g2 Ba3 c1Q Re2 f3 Re1 g3 Rh3 Bg4 Ra2 Qd6 Re3 Bg7 Rh1 Ne7 Rd2 Bh5 Re1 Be5 Rh3 Rd8 Be2 f1Q Rd3 f2 Rf3 Nd5 Bc4 Qe2 Bb2 f1N Nd2 Qa1 Ne4 Nd2+ Kc2 Qa5 Bc3 b3+ Kb2 b4 Rf8 Qac7 Qc2 Qb7 Ref1 Qh7 Nf3 g1N Nh2 g2 R1f5 Qh6 Ng4 Qh7 Ka1 b2+ Ka2 Qe1 Bb5 Ne2 Nh6 g1Q Ng8 Qg2 Ng3 Qd1 Qd3 Qc2 Qc4 Qf1 Qc5 b3+ Ka3 b1Q Ka4 b2+ Ka5 Nb4 Ba6 Qf2 Bc8 Qbe1 Rh1 b1Q Rf1 Qed1 R5f7 Qde1 Bh3 Qg2 R1f5 Qef2 Ba1 Nc3 Rb7 Nb5 Bc3 Qe2 Qc4 Nd7 Qc5 Rab8 a8Q Qgd5 Qa6 Qdb3 Ra7 Rb6 Rb7 Nb8 Qa7 Q3b2 Qc4 Qbb3 Rd7 Rb7 Qac5 Rb6 Rb7 Q3b2 Qb3 Q2a2+ Qa3 Na7 Nh6 Nd3 Qa4 Rb2 Ng8 Nb5 Rf1 Na3 Qac4 Nb4 R1f5 Nb5+
4BrQ1/r5rn/1bp1rP2/2n1RR2/1Qn2Bnn/bK2q2P/1NBb2bN/4k3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 Kf7 d4 Ke6 Kd2 Kd5 Kc2 b5 a4 e5 a5 g5 h3 e3 f5 Ke4 f6 c3 d5 e2 a6 e1B d6 g3 a7 g2 d7 g4 Ra2 g3 Qh5 b3+ Kd1 c2+ Ke2 b4 Rh2 b2 Na3 b1N Be3 c1N+ Kd1 b3 Nf3 g1N Rhc2 g2 Bg5 b2 Bb5 Qe7 d8Q Nd7 Bh6 Bd2 Qg5 Bb7 Qc8 Nd3 Nc4 Na3 Qh5 b1R+ Rc1 Rb4 Be3 Nh6 Nh4 Nf3 Rb2 g1B Ba4 Ng4 Nb6 Nc4 Ng6 Nh4 Kc2 Kf3 Qg5 Ke2 Bf4 e4 Ne5 e3 Qg8 Bg2 Qb7 Rh7 Nf3 Rg7 Bb5 Ra4 Rf1 Qe8 Kb3 Ba3 Rc2 Nf8 Nh2 Nh7 Ra2 Rc8 a8B Ra7 Na4 Rd8 Rf2+ Ke1 Nb2 e2 Qb8 Qe6 Be4 Rf8 Be8 c6 Qb4 Qe7 Rf3 Bb6 Bf5 Qc5 Re3 Qd4 Re5 Qe3 Bfg6 Kf2 Ra1 e1R Rc1 Re2 Rc3 Ke1 Rc2 Nd6 Rcc5 Nc4 Rb5 Qg3 Rf5 Re6 Rbe5+ Qe3 Bh5 Ngf2 Bd1 Ng4 Bc2 Nc5+
q1NQ2r1/1rRR1B1b/1p3KB1/nr6/1N5N/1P3qk1/nbrQ1rP1/2q1r2q w - - 0 1 illegal: No possible last move
1N3Knn/2q5/1pP5/kN3QB1/B1b1n1br/R2P3r/2nN1Qnr/1Rbb2r1 w - - 0 1 illegal: No proof kernel
1b1rbn1k/r7/P1BQRb2/RPp5/1Bb4K/3qb1rN/1nbQ4/rNR3q1 w - - 0 1 illegal: No proof kernel
q3N3/3Q2br/p1b3qk/3NPR1N/1qqR3K/qr2n1rP/2BQ3r/2nq2B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 d5 e4 f5 b4 Kf7 c4 Kg6 e5 f3 Kg3 f2 h3 f4+ Kg2 a6 b5 a3 b6 a2 b7 f3+ Kg3 d3 c5 d4 c6 d2 c7 d3 Nc3 Nd7 b8N Nc5 Qb3 d1R Bh6 d2 Nce2 Nd3 Rh2 Bb7 c8Q Ne7 Be3 Nc1 Qc5 Nd5 Qd4 Rh7 Qda4 Bc6 Bf4 Ne3 Nd7 Rb8 Qbc4 Rb3 Qab5 Qa8 Rb1 a1Q Qg8 Qa3 Bg2 f1Q Bh1 f2 Qgd5 Qe1 Nc3 f1Q+ Rf2 Qc4 Nge2 Kh5 Qd4 g5 Nf6+ Kh6 Be4 Bg7 Bc2 Qf1 Qbb6 Qcb4 Qb7 Re1 Ncd5 d1Q Ng1 Qfe2 Qd2 Qec4 Ne8 Re2 Rf1 Rf2 Qd7 Rh2 Ne2 Rh1 Kf2 g3+ Kf3 g2 Bh2 g4+ Kg3 g1R+ Kh4 g3+ Nef4 Rg2 Bg1 Rhh2 Ra1 Rf2 Ra2 g2 Ra1 Rf3 Rb1 Ng4 Nh5+ Rfe3 Rf4 Rg3 Rd4+ Ne3 Bf2 g1Q Rb2 Qgf1 Bg1 Qf7 Rb1 Qg6 Ra1 Nd3 Rc1 Qf3 Rf1 Qd1 Rf5 Nc1
2nq3Q/2b4P/r2n3k/b2NRnpP/n1B1R1R1/6b1/Q1br1BN1/Knr2r2 w - - 0 1 illegal: Other
Q2q2QK/2b1nq1P/N3Bq2/Pk3q1N/1pqn4/1bQ2bq1/3r1rRB/1R3b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc6 c4 g5 a4 b5 h5 f5 a5 d3 h6 d4 c5 g3+ Kf3 d2 e5 d3 e6 g2 e7 g4+ Kf2 f3 Kg3 f4+ Kh4 f2 Kh5 g3 Kg6 f3 h7 b3 Qe1 d1Q Bb2 b4 Qd2 Qc2 Bc1 b2 Rh4 Be6 Nh3 g1Q Qg5 g2 Rg4 d2+ Re4 d1B Na3 b1Q Qd2 Bb3 Nf4 Qc4 Nb5 Qbd3 Be2 f1B Nh5 f2 Bg4 Bf3 e8Q+ Q3d7 Be6 Bd6 Qe1 Ne7+ Kg7 Rf8 Re2 Bc7 Qc3 Qh1 Bb2 Qhh4 Rb1 g1Q+ Qg6 Qgg3 Rc2 Ng8+ Kh8 Ne7+ Qg8 Qhe4 Bc1 Qf5 Bf4 Q7e8 Rd2 Qef7 Bd6 Bd3 Be5 f1Q Rg2 Qff2 Bf4 Bf1 Bd6 Qgg6 Bh2 Qgg3 Nd6 Qb2 Ne4 Kb5 c6 Ra6 Nc5 Ra7 Qg7 Qbf6 Na6 Be5 c7 Nbc6 c8Q Bc7 Rd1 Nd4 Qa8 Rb7 Rc1 Rb6 Rb1 Rd6 Nb8 Ndc6 Na6 Rd2 Rc1 Nd4 Rb1 Qfh4 Qf6 Qhg5 Qg7 Qgf6 Ra1 Re8 Rf2 Q6g5 Nc5 Nc2 Bc8 Nc6 Qc3 Ree2 Be6 Ne7 Rb1 Nd4 Rg2 Rf2 Na6 Qgf6+
1brn4/Q1n1r2p/2BQ2rr/3Bn2K/P3qR2/1b1N4/1PbNr1n1/BRbk4 w - - 0 1 illegal: Other
1n5n/1P1qr3/3nrN2/1p2rQ2/RP6/KbN1nNq1/1rBnQb2/RBkn4 w - - 0 1 illegal: Other
2r3r1/rp1b1q1N/2Qq1P2/4rq1k/4BPRN/n1qr1R1K/n6B/3rbBQ1 w - - 0 1 illegal: Other
b1qNb1rB/q1B1n3/1r1Q3R/1rR5/5b2/1K3p1q/PQP2Nqr/2b2knB w - - 0 1 illegal: No possible last move, all moves rejected
1r5R/n1QQ4/3b1BK1/QBNnR2q/Pq1b1Pp1/r1q1qk2/1N4b1/n5bn w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 h5 g5 c5 d5 c6 e5 a3 b3 c7 b2 h6 d3+ Ke3 d4+ Kd2 g3 h7 e3+ Ke1 Ke4 Qh5 e2 Kd2 e1N Rh4 b4 Qh6 g2 Qf6 b3 Ne2 g1B Nec3+ Kf3 Qd6 e4 Qe6 e3+ Kd1 e2+ Kd2 Bb7 c8Q Bd6 Na2 Nc6 Rh5 Qf6 Nac3 Nge7 Qeg8 Nd5 Qge6 Nc2 Qb8 e1B+ Kd1 d2 Na4 Na7 Nbc3 b1Q Qd7 b2 Ne4 Bef2 Qbc7 Rhb8 h8Q g4 Ra2 Na1 Bb5 Qd3 Qhd8 b1Q Nec5 Qe3 Rh8 Qb4 Nb2 Qf5 Qa5 Qh5 Q8c7 Ba6 Bc6 Bf1 Ba4 Bg2 Bb5 Nb3 Kc2 d1Q+ Kb1 Qde1 Kc2 Qg5 Bd2 Qh5 Bc3 Q1d2+ Kb1 d3 Bf6 Qdc3 a4 d2 Ra1 d1N Ra3 Na1 Rb3 Qbd4 Rb4 Qdd2 Re4 Rb7 Re5 Rab8 Ba6 Rb3 Bb5 Qde1 Nb7 Qb6 Nc5 Qb4 Kc1 Ra3 Kb1 Bd4 Kc1 Nb3+ Kc2 Qg3 Kd3 Nf2+ Kc2 Nh1 Kd3 Qgh3 Qb7 Bdf2 Ne6 Kg3 Qbc8 Qc6 Qcc7 Qc1 Nc5 Be3 Na6 Bd4 Nc5 Na1+ Nb3 Bf1+ Ke4 Qcc3 Nc5 Kf2 Rg5 Qhe3+ Kf5 Qh6 Rh5 Kf3 Rg5 Qh4 Kg6 Bg2 Re5 Qh5+
1r1q1NrB/2k3Br/2p3n1/PbP1Rn2/7q/2b2Q1n/Nn1qQ1NK/3Rq2r w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 axb6 Ng1 b5 Qf3 b4 Qe2 Nc6 Qd1 Nb8 h4 Kd7 c4 b5 d4 g5 a4 e5 f4 g3 a5 g4 d5 c6 c5 b3 h5 b2 h6 b4 h7 b3 f5 e3 d6 e2 f6 e4 f7 Ba6 Bf4 Bb5 Qc2 Ne7 Qc4 Bg7 f8Q Nf5 Ra3 Bc3+ Nd2 b1N Bh6 b2 Ra2 Na3 Qa4 b1R+ Qd1 Nc4 Rh4 Nb2 Nh3 g1N Bg7 g2 Ra4 g3 Nf4 Nh3 Rd4 Kc8 d7+ Kc7 Rh6 Qh4 d8N Nd7 Qe8 Nf8 Re6 Rb8 Re5 Ng6 Qe6 Rg8 h8B Ra1 Qc4 Ra4 Qd3 Rc4 Qf3 g1R+ Qf1 Rh1 Ng2 Rb4 Rd3 Rd4 Qc2 Rd7 Ne6+ Kb7 Nf8 Kc7 Rd4 Re7 Qd3 Rf7 Qf3 Qd8 Nf4 g2 Rd6 g1Q Ng2 Qh2 Rdd5 Bd4 Nb3 Bc3+ Rd2 Qf4 Nc1 Re7 Na2 Qh6 Bf6 Rh7 Bfg7 Qhh4+ Qg3 Nhf4 Kf2 e3+ Kf3 e1Q Qe2 Nh3 Rd1 Qed2 Qgf2 Qhe7 Kg4 Qf6 Qef3 e2 Qf1 Nd4 Kg3 e1Q+ Q1f2 Rg1 Kh2 Nf5 Q2e3 Qfh4 Qee2 Rh1#
3kn1rb/5Q1P/1b2n2q/2r1NB1B/1Q5R/qb1p2rN/nb1PnR1B/1r5K w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 Kf2 c5 Kg2 b5 e4 f5 a4 g5 h4 d5 e5 b4 h5 c4 a5 g3 a6 f3+ Kh3 f2 Kg2 c2 h6 g4 h7 d4 a7 b3 e6 f4 e7 d3 Nc3 b2 Nge2 b1R Qe1 Be6 Nd5 c3 Rh4 f3+ Kh1 g2+ Kh2 g1N Ndf4 g3+ Kh1 g2+ Kh2 Qa5 Rh6 Bb3 Nh3 Na6 Rh5 Nf6 Rg5 Nc5 Bb2 c1B Rg3 c2 Be5 Rc8 a8Q Ne6 Rg7 Rg8 Nc3 Bb2 Nd1 c1N Qa7 Nge2 Ne3 g1B+ Kh1 Qa3 Nc4 Rc5 Rg4 Bg7 Bh2 Na2 Rh4 Bh8 Ne5 Rg3 Bg2 f1Q Qa5 f2 Qb4 Rg8 Be4 Rg3 Bf5 Rg8 Ng5 Qh3 Qf1 Qe3 Nh3 Qh6 Nc4 Kd7 e8B+ Kd8 Bh5 Ne8 Ne5 Rg3 Qc1 f1R Qcc4 Rg8 Qf4 Rf3 Qfc4 N6g7 Qe6 Rg3 Qf7 Rd1 Rc1 Ne6 Rcc4 Rb1 Rcf4 Rb5 Rf3 Bb6+ Rf1 Nec1 Rf3 Rc5 Rf2 Ne2+
1r1n1bRq/1QN1BPn1/3QRK2/P7/1qn1bp2/4q1N1/rkN1r3/1B3rnq w - - 0 1 illegal: No proof kernel
r6R/BQrn1PK1/P3B2p/3nq1n1/7N/2N2Qr1/rRqNb2k/2q1b1qn w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 a4 Kh5 f4 Kg4 a5 Kg3 c5 b5 a6 e5 c6 d5 c7 d3+ Ke3 h6 f5 d2 f6 b3 f7 b4 Rh2 d4+ Ke2 d3+ Ke3 b2 Nh3 b3 Ra3 Ne7 Nf2 h3 Rh1 h2 Nh3 Qd6 Nc3 b1R Qc2 d1R Ra2 b2 Qb3 d2 Qb5 Ra1 Qe2 b1Q Qh5 Nd7 Rg1 h1N Nf4 Rg8 Rb2 Qc2 Ng6 Ra2 Qf3+ Kh2 Nh4 Rg3 Bc4 Bg7 Be6 Nd5+ Ke2 Bb7 c8Q e3 Qb8 Bc6 Qb7 e4 Re1 Qe5 Rg1 Rh3 g4 Rg3 g5 Bf8 g6 Bb4 g7 Rf1 g8N d1N+ Bd2 Ndf2 Qf4 Nh3 Qf3 Rc1 Nf6 Ng5 Rd1 Qa4 Be1 Bb5+ Rd3 Ba5 Bf2 Bb4 Ne8 Ba5 Nd6 Qb3 Nc4 Qc2+ Nd2 Bb4 Nd1 Bc4 Ke1 e2 Ba7 Qb1 Rc3 Bd3 Rc8 Rc7 Rd8 Qc2 Nc3 Qa4 Nc4 Qd4 Kd2 Qg1 Rh8 Ba5 Nb6 Bb5 Nc4 e3+ Kd3 Qc2+ Kd4 e1Q Nd1 Bd2 Nc3 Qec1 Qe4 e2+ Qe3 N7f6 Ke5 e1Q Qe4 Nd7+ Kf5 Nf2 Kg6 Nh1 Kg7 Qee3 Qd3 Be1 Nd2 Qe4 Qe3 Be2 Qf3 Qe5+
3r1Kb1/k1NPBBn1/br3r1Q/5rn1/1nR2pq1/4b1Q1/1P2nq1b/BN4R1 w - - 0 1 illegal: Other
q2b1r2/nBP1r3/b2QQ3/2n2rB1/6NP/3R1pKb/2qqqRb1/1kN1rQ2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 c4 g5 a4 b5 c5 f5 a5 d5 c6 f3 c7 g3+ Ke1 b3 a6 b2 a7 b4 Bd2 f4 Be2 g4 Ra2 f2+ Kf1 b3 Kg2 d3 Bc1 Kd4 e5 d2 e6 Rh7 e7 Nc6 e8Q Be7 Bc4 Ba6 Ra1 Nf6 Ra2 Ne4 Ra3 Nc5 Nc3 b1Q Qh5 b2 Qa4 d1Q Qa5 Qe2 Bd2 Qc2 Rb3 b1B Rh3 f1B+ Kh1 g2+ Kh2 f3 Qb5 Qc8 Na4 Bd8 Qb8 Re7 Kg3 Qb7 Kf4 g3 Rh2 Qc8 Nh3 g1R Qg4 Bg2 Qg6 Re1 Qb6 Rb8 a8Q Na7 Qbc6 Rb5 Qab7 Qa8 Nf2 Ra5 Bc1 Qcd2+ Re3 Bf5 Qbb5 Bfh3 Nb2 Qc2 Bd3 Kc3 Qge6 d4 Be4+ d3 Qcd6 Qcd2 Bb7 Kc2 Qbc4+ Kb1 Ng4 Qc2 Qb5 d2 Rd3 d1Q Be3 Qdd2 Qbc4 Bh1 Rf2 g2 Kg3 Rb5 Bg5 g1R+ Kh2 B1g2 Kg3 Qcd1 Re3 Q1c2 Nd3 Na4 Nc1 Rf5 Ra3 Nc5 Rd3 Qb2 Rd4 Qe5+ Bf4 Qa3 Kh2 Qb3 Nh6 Bh1 Qf1 Qbc2 Rd3 Rg8 Ng4 B1g2 Kg3 Qee2 Bg5 Rgf8
1Q1n1n1k/R1P5/3R1bR1/5K1N/r1pnr3/q1qr4/NbbB2BP/1nr1b1Q1 w - - 0 1 illegal: No proof kernel
2bq1K1N/q6B/1q5R/brP3P1/nQQ2pnq/1b1p2BR/2B1kr1N/1q2n3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 h5 e4+ f3 a4 b5 a5 f5 e5 f4 a6 h3 a7 h2 g3 d3 e6 h4 e7 b3 Kd6 b2 Qe1 b4 Qe4 h3 Qe3 f2 Qc5 d2 Nc3 d1B Qb5 b1Q Ra2 b3 Qb4 b2 Ra3 Bb3 Ra4 Nf6 Ra5 Na6 Be3 Nc5 Rb5 Rh5 Bd3 f1Q Rb6 Qf2 Nf3 Na4 Bc2 Rb5 Nd5 Qa2 Bd2 b1Q Be1 Qaa1 Rc6 Qfb6 c5 Bg7 e8Q Qaa2 Rg1 h1Q Qg8 h2 Ne7 Rb8 a8B Qa3 Ke5 d5 Ng6 d4 Qgc4 Rb7 Nh8 Ra7 Nd2 Ra6 Nf1 Kf3 g4 Qaa2 Qd5+ Ke2 g5 Qa3 Re6 Ng4+ Kf5+ Be5 Kg6 Qaa2 Rf6 Bc7 Kg7 Nc3 Qa3 Qb8 Ng3+ Ke3 Rh6 Rd6 Qb4 Qaa7 Be4 Na4 Qf7 Ba5 Bc2 Qbb6 Bae4 Re6 Bg6 Kf3 Rg2 Re2 Nf1 Rd2 Bh4 Rf2 Rg3+ Ke2 Bge4 d3 Bh7 Ne3 Rf3 Ng2 Rg3 Ne1 Rf3 Qg1 Rg3 Qg2 Rf3 Qg4 Rh3 Qh5 Bg3 Qg4 R6h5 Qh4 Rh6 h1N Nh2 Rf1 Bf5 Nf2 Bh7 Qd5 Kf8 Ng4 Qg8 Rf2 Qf7 Qdd7 Qfc4 Qdd8#
Kb1B4/1b1Bn2k/2b1n1q1/1Pq2rP1/1Qb2p1p/bRN1QQrR/2N5/3qr3 w - - 0 1 illegal: No possible last move, all moves rejected
Q4NB1/B3b2r/q1b1qq1p/1R1q3q/6kb/r1p2nP1/P1RNr2B/1nK2Q2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 d4 Ke6 Kd2 f5 e5 b5 g3 c5 Nf3 b3 Na3 c3+ Kd3 b2 Kc2 b1R Nc4 b4 Bg2 b3+ Kd3 c2 Kd2 h6 Na5 h3 Ba3 c1B+ Ke1 b2 Bb4 h2 Nc4 Nc6 Qb3 Rh7 Kd1 Bb7 Nb6+ c4 Qa3 c3 Kc2 Qd5 Rf1 h1Q Ba5 Be7 Nh2 f3 Nd7 f2 Bb6 f4 Qa6 Kf5 e6 f3 Ba7 Bcg5 Nf8 Bh4 Rc1 Ne5 Nf1 Nf6 Nd2 Kg4 Qf1 Ne4 Kd1 Bc6 Kc2 Beg5 e7 Bf6 e8Q Be7 Qb8 Qe6 d5 Qh3 Nc4 Nd2 d6 Qh1 d7 Qh2 Bb6 Ra3 d8B Qh3 Ba7 Qh1 Qg1 f1Q Qa8 f2 Bd5 Nef3 Bdb6 Qfe2 Qd1 f1Q Bg1 Q2e5 Qe2 Qh5 Bh2 Qf2 Qf1 Qd4 Re1 Qdf6 Re5 Re1 Rc1 Nb1 Nd2 Re2 Rf5 Ng5 Bb3 Qhd5 Kd1 Nf3 Rc2 Qd3 Rb5 Qdd5 Bc4 Qe3 Ne6 Qde5 Nb3 Nbd2 Nf8 Qed6 Bg8 Qdd5 Rb6 Qee6 Rc1 b1Q Rb8 Qbf5 Rc2 Qb5 Kc1 Nb1 Nd2 Qa6 Rb5 Qfd5
6bk/1n6/Rq1Q2PN/1qrbq3/3r1B1R/Pb1b1p1K/nb1QrBBp/5N2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 e4 b5 g4 f5 Kg2 Kf7 d4 Kg7 a3 c5 e5 h3+ Kh2 c3 g5 f3 g6 h4 e6 f2 d5 b3 d6 f4 e7 c2 e8Q c4 d7 b4 Be3 c1Q Qh5 c3 Ba7 c2 Qa5 b2 Qc5 b3 Qe1 Qb6 d8B Nc6 Be2 f1Q Bh5 Nf6 Qg3 Qfb5 Nc3 b1B Qf3 b2 Na4 Qe1 Qcd5 c1R Qfd1 Ba2 Qe5 b1B Qb2 Rc5 Qbc2 Bb3 Qcd3 Nd5 Q1e2 Ndb4 Bf3 Bce6 Bg5 Rd8 Qd6 Na5 Bg2 Bg8 Nb2 Nb7 Nd3 Na2 Nf2 Bd3 Qd2 Qe5 Re1 Rh6 Rf1 Kh8 Ne2 Bg7 Ng4 Rh7 Ng3 Bf6 Qa5 Re7 Qd2 Ree8 Nh6 Bg7 Qb8 Rd4 Qd6 Bf6 Rc1 Re7 Nf1 Re6 Kg1 h2+ Kf2 h3 Kf3 Ba4 Kg4 Bb3 Rc4 Re8 Ra4 Bg7 Ra6 Bf6 Rg1 h1B Kh4 h2 Kh3 Qe2 Be4 Re6 Rg4 Qe3+ Bf3 Qe5 Bc6 Bhd5 Rh4 B5c4 Bg2 f3 Bf4 Bd5 Bg3 Qf4 Bf2 Re2 Bb8 Qe3 Qd7 Bg7 Bf4 Qe5 Qd6 Qf6 Qc3 Ra4 Bg1 Qg5 Qd2 Bb2 Bd4+ Qe5 Bf2 Rd4
n4RB1/knK5/4Bp2/6q1/Pqbr1rn1/3nb1P1/bQN1pBn1/QR3Nq1 w - - 0 1 illegal: No proof kernel
1nbr4/q3q3/r3P3/R3B1kp/1QrN2q1/p1R1n1PQ/RNK3B1/1nn1bn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 Kf6 c4 d5 e4 h5 g3 a5 e5+ Kg5 b5 f5 e6 f3 c5 a3 c6 f4 c7 a4 b6 d3 b7 d4 Qe2 f2 Qe1 a2 Be2 f1R Kd1 a3 Bd2 h3 Nc3 h2 Na4 Ra6 Nc5 Ne7 Bg4 Nd5 Ba5 f3 Bh3 f2 Rb1 a1N Bb6 d2 Nd3 Nb3 Bg2 Ne3+ Ke2 d1N Nb2 Nc1+ Kd2 d3 Ne2 Qe7 Bd4 Nc3 Be5 Bg7 Rg1 h1Q Nd4 Rd8 Ra1 Qh3 Ra2 Qg4 Rh1 Bh6 Rh4 Rh1 Qd1 Rh3 Qh1 f1N+ Ke1 Nb1 Qh2 Nd7 b8Q Bg7 Qb4 Nb8 Qg1 Rh1 Qh2 Bf8 Qh3 Rh2 Bd5 Rc2 Ba8 Rc4 Bg2 Bd7 c8R d2+ Kf2 d1Q Rc5 Nd5 Ra5 Qa4 Ke1 Bc8 Nf5 Nde3 Nd4 Qf3 Rf4 Qg4 Rf3 Nf5 Rc3 Qad7 Bf3 Qa7 Kd1 Bg7 Kc2 Bf6 Bc7 Be5 Bc6 Bf4 Be4 Bd2 Be5 Be1 Bg2 N5e3+
2Qrn2q/BQ3K1r/2Rqp1Nb/Q2rp3/4PN2/n1P3kn/1Rq3n1/5Bnb w - - 0 1 legal: proof: d4 a5 b4 axb4 h4 g5 d5 gxh4 d6 f6 Qd5 cxd6 Qf3 d5 Qe3 d4 Qe5 fxe5 Kd2 Kf7 Kd3 Kg6 Kc4 Kf5 Kd5 Kg4 f4 h5 a4 b5 a5 b3 e3 h3 c3 h4 a6 b2 a7 d3 g3 b4 f5 e6+ Ke4 b3 f6 d2 f7 d1R Nf3 h2 Bc4 h3 Ba6 Rd5 Ng5 Bh6 f8Q Rh7 Nd2 b1N Qe7 b2 Bf1 Bb7 Ra6 Nc6 Ndf3 Na3 Nh4 Nd4 Rc6 Nf3 Ng6 Ng1 Qc5 Qb8 Qa5 Qd6 Bd2 Rf8 a8Q Rd8 Q8a7 Ba8 Be1 Bb7 Bf2 Ba8 Qb7 b1Q+ Bd3 Qb2 Bf1 Qc1 Nf3 Qb2 Nd4 Nf6+ Kd3 Ne8 Ke4 Nc4 Ne2 Na3 Nef4 Qc2+ Bd3 Nf3 Rb1 h1N Rb2 h2 Bg1 Qd2 Bf2 Ng1 Bf1 Qe2 Ng2 Kh3 g4 Qd1 g5 Qc2+ Bd3 Ne2 Bg1 Nf2+ Kf3 h1Q Bc4 Nf4 Bf1 Ne2 Nh8 Qh2 Nf4+ Kh4 g6 Nh3 Qc8 Bb7 g7 Ba8 g8Q Bb7 Nd3 Ba8 Qf7 Bb7 Ke4 Kg3 Ng6 Rc5 Ne7 Qb8 Ra2 Rg7 Rb2 Bg5 Rb6 Nhf4 Rb2 Qh8 Qb5 Rh7 Qa5 Nh3 Ng6 Bh6 Qg7 Qc1 Ndf4 d5+ Kd3 d4 Rc7 Bh1 e4 Rcd5 Rc6 Qb4 Be3 Neg1 Qgb7 Qb1+ Kd2 d3 Ba7 Qc2+ Ke3 d2 Be2 Qd6 Bf1 Nf3 Ke2 Ne1 Ke3 Ng2+ Ke2 Kh2 Kf3 Ng1+ Kg4 d1N Kh5 Qb4 Nh4 Kg3 Kg6 Qc5 Bb5 Nf2 Bf1 Bg7 Kf7 Nfh3 Nhg6 Qb4 Qba6 Qd6 Qab7 Bh6#
nnq5/q1n5/N3pBp1/1R2b1P1/1QNnnRQ1/3bb3/NPk4K/1qBr2r1 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 h5 Be2 f5 Bf3 fxe4 Bg4 hxg4 Kf1 Kf7 Kg2 Ke6 f4 Kd5 h4 Kc4 f5 a5 f6 d5 c3 e6 h5 g6 f7 d3 h6 a3 h7 g3 Nf3 a4 Re1 a2 Kh1 g2+ Kg1 a3 Nh2 e3 Nf3 e2 Nh2 d2 Qc2 d1N Qd2 Kb3 c4 d4 c5 d3 c6 Nf2 c7 Bg7 f8Q Nf6 Qd6 Ba6 c8N N2e4 Qg3 Nfd7 Qh4 Be5 Qh5 Nb6 Qf4 d2 Qf7 d1N Ng4 Ne3 Qf6 Bd3 Na7 Ned5 Qf4 Kc2 Rd1 e1Q+ Kh2 Qc8 Nc3 Rd8 h8B Nc7 Bf6 Rd7 Rb1 a1N Nab5 Nb3 Na2 Nd4 Ra1 Qa5 Rf1 Qa7 Qh4 Rd6 Qfg3 Rd5 Rf4 Rd6 Qe1 Rd7 Qb4 g1B+ Kh3 Be3 Kh2 Qab7 Qh3 Ra6 Qh4 Qa7 Qh5 Nba8 Qh3 Bd6 Ne5 Ra5 Nc4 Be5 Qg4 Rd5 Nbd6 Ra6 Nb7 Rdd6 Nc3 a2 Nc5 Ra3 Na6 Rd7 Rb1 a1Q Na2 Ra5 Nc3 Qa2 Ra1 Qb1 Ra3 Rad5 Na2 R5d6 Ra5 Rh7+ Kg2 Rh1 Rb5 Rg1+ Kh2 Be2 Nc3 Nb3 Qg2 Rdd1 Na2 Nd4 Qg4 Bd3
1q2r1b1/8/1R1P3Q/k2qb2N/2B1r3/bpPpnr1K/2nrqR1B/Q4NrN w - - 0 1 illegal: No proof kernel
1Nn1NRRq/r1n1rBn1/1Q1Pn2p/1n2b1kp/Q3br2/1P4N1/3K2b1/B2q4 w - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 dxc4 f5 g6 h5 gxh5 f6 exf6 Rh2 f5 Rh1 f4 d4 Ke7 g4 Kf6 e4 c5 e5+ Kg5 b3 a5 d5 f5 d6 c3 e6 h6 e7 c2 e8N a3 Qe2 a4 Qf3 c4 Qh3 c3 Qe3 a2 Nd2 a3 Bd3 Ra7 Bb5 Bb7 Ba4 Ne7 Nf1 Na6 Nh2 Be4 Ne2 Rh7 Nc7 Bg7 Qd3 Be5 Ng1 Qh8 Bc6 Nc8 Ne8 Rhe7 Ng7 Nc7 Bd2 c1Q+ Ke2 c2 Be8 Qb1 Be1 c1N+ Kd2 f3 Qc4 f2 Nf1 f4 Ne2 f3 Bf7 Nd3 Rg1 Nf4 Nfg3 f1R Qa4 f2 Ne8 Nfe6 Nd4 Ng7 Nc6 Qc1+ Ke2 Qb1 Bc3 Qc2+ Ke3 Qd1 Rb1 a1N Nb8 a2 Rc1 Qf3+ Kd2 Nc2 Ba1 Nd4 Rc3 Qh1 Rf3 Nde6 Rf4 Rc1 Rf6 f1B Rf4 Bfg2 Rf3 Kh4 g5 Rf1 g6 Kg5 Rf6 Nf5 g7 Rf4 g8Q+ Nfg7 Bd4 a1N Bc3 Nc2 Ba1 Na3 Qh7 Bb2 Qf5+ Kh4 Qfa5 Nab5 Qb6 Bd4 Rg6 Be5 Rf1 Nf5 Rg8 Nfg7 Rf2 Kg5 Bg6 Rg4 Rff8 Rf4 Bf7 Qd1+
2Qr2N1/QbQbN1b1/1n1p4/3q3n/2nB2k1/1B1b1r2/P1R2Ppq/2Kq1R1b w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kf6 c4 Kf5 c5 b5 c6 g5 h5 e5 c7 g3 h6 g2 h7 d3 Qb3 g4 Qc4 b3 Rh2 e3+ Kd1 g3 Qc2 b2 Nf3 g1Q Ng5 e4 Rh5 d2 Rh6 b4 Qa4 e2+ Kc2 e1N+ Kd1 e3 Ne6 b3 Nc3 b1B Qa5+ Kg4 Qa4+ Be4 Rb1 b2 Ng7 Ng2 Qc4 Qh2 Qd3 e2+ Kc2 d1B+ Kd2 Ne3 Qd4 Ba4 Rh5 Bb7 c8Q Nf6 Ne8 Bg7 Qcc4 Rf8 Rc5 Nh5 h8Q Rf3 Nd5 d6 Ra1 b1B Ne7 Bd3 Bb2 Qa5+ Kc1 Bd7 Rc8 Qb5 Qa7 Qd5 Qc7 Nc4 Bc3 Bdf5 Qg8 Nd7 Bd4 Ndb6 Qf8 Bd7 Nf6+ Kh4 Nfg8 Kg4 Qcd8 Rb8 Rc6 Ra8 Qc7 Rd8 Rc5 Na5 Rc2 e1Q+ Kb2 Qe2 Kc1 Nac4 Qe8 Bdf5 Qed7 Be6 Qdc8 Bd7 Rb1 Rf4 Ra1 Bh1 Bg2 Rff8 Be4 g2 Rb1 Qa5 Bd5 Rf3 Bf7 Ne5 Bc4 Qd5 Bb3 Nec4 Ra1 Na5 Kb1 Qee5 Kb2 Qe2 Rf1 Nac4+ Kc1 Qd1+
Q5K1/NN1RR1r1/Bpr4B/2rP3n/P2k2r1/1qr3Q1/b3np2/bb3qnB w - - 0 1 illegal: No possible last move, all moves rejected
2KNN1Q1/2nnq2P/1q2BqRQ/6p1/R2B1Pbb/2bkr1r1/4nq1p/Bq6 w - - 0 1 illegal: No proof kernel
5nB1/1n1bN2P/nR2P1n1/6Bq/Q1KN1bQp/Bn1r1R2/qbrk2p1/6r1 w - - 0 1 illegal: No proof kernel
1bb2K1Q/3nQp2/1r3br1/kNBR1rN1/2Pq1P2/3bB3/p1n5/2n1RNbq w - - 0 1 legal: proof: d4 h5 g4 hxg4 a4 e5 d5 b5 e3 bxa4 d6 e4 Bd3 exd3 Nh3 cxd6 Ng1 d5 Qe2 d4 Qd2 Na6 Qd1 Nb8 Kd2 a5 b4 g5 f4 d5 c4 Kd7 h4 Kc7 h5 Kb6 b5 a3 e4 a2 h6 a4 e5 a3 e6 g3 h7 g2 e7 g4 e8Q g3 Qg4 Nh6 Rh3 Bd6 Qgg8 Nc6 Nf3 g1R Rh5 g2 Qe4 Ng4 Qe5 Ne3 Nh4 Rb8 Qgg5 Nc2 Qgf6 Ka5 Qfg5 Rb6 Nf3 Bb8 Qe6 Ne5 Qee7 Rg8 h8B Rgg6 Qef6 Re1 Qg7 g1B Qe7 Re3 Ng5 Rh3 Kd1 d2 Ke2 d1N Be3 Nf2 Nd2 Nfd3 Re1 a1B Nf1 a2 Qg8 Rg3 Bf6 Qd7 Qh8 Nc1+ Kd2 d3 Bg7 d4 Bf8 Rbf6 b6 Rf5 b7 Bb2 Re2 Rb6 Re1 Bd6 b8N Qc6 Qg8 Qh1 Na6 Bb8 Nc7 Rg4 Nb5 Rg2+ Kd1 d2 Qh8 Rg3 Ne6 Rg6 Ng5 Ncd3 Ke2 d1B+ Kd2 Bf3 Rh7 Be4 Rh5 Ba3 Ke2 Nc1+ Kd2 d3 Kc3 Nb4 Kd4 d2 Kc5 d1Q Rh2 Bb2 Rd2 Nc2 Rd5 Nc6 Qh5 Bf6 Qh8 Ba7 Kd6 Qd4 Bf2 Bd3 Be3 Ba6 Kd7 Bb8 Ke8 Bc8 Qe4 Qf3 Bc5 Qh1 Qe7 Ne5 Kf8 Nd7+
Q4Nr1/q4p2/1P2q1RP/5Kbk/1nq1R2B/r7/prb2n1Q/NBnN2nn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 a5 Kd3 d5 h4 g5 b4 f3 e4 a3 c4 f2 b5 a2 e5 a4 b6 g3 e6 g4 h5 g2 e7 g3 h6 a3 c5 Nf6 c6 Nh5 c7 Qd6 Nd2 Na6 Nb3 Qe6 Be2 f1Q Qe1 Nb4+ Kd2 d3 Rb1 a1Q Qd1 d4 Rh4 Rg8 Nh3 g1N Qe1 g2 Qd1 Ng3 Bh5 N1e2 Nc5 g1N Qc2 Nh1 Nf2 Ra7 Bb2 Nc1 Nb3 Bd7 c8N Ba4 Bg6 Bg7 Nd1 Bf6 Bc3 Bg5+ Rf4 Qa2 Na1 Ra8 Qb2 Bc2 Bh7 Qac4 Be4 a2 Bg6 Ra3 Bf5 Bh4 Re4 Kd7 Bh7 Qff5 Bg6 Qa5 Bf5 Qa7 Bg6 Kc6 e8Q+ Kd5 Ne7+ Kd6 Qa8 Bg5+ Rf4 Ke5 Bh7 Bh4 Re4+ Kf6 Ng6 Kg5 Nf8 Kh5 Bf5 Nc6 Bb4 Bd8 Bd6 Nb4 Bg3 Be7 Bh4 Bd8 Ke1 Bg5 Kf1 d2+ Kg2 d3 Qe5 Ra6 Qh2 Ra4 Rb3 Ra3 Rc3 Qca6 Rc6 Qac4 Nb2 d1N Rd6 Qee7 Rg6 Ndf2 Nd1 d2 Re2 Bb3 Bb1 Qee6 Re1 Bc2 Re4 Ngh3 Nc3 d1R Kf3 Be7 Ke3 Ng1 Kf4 Rd3 Nd1 Rdb3 Nd7 Rb2 Nf8 Qec6 Ke5 Bg5 Kf5 Q6e6+
K5Qq/3bp1nq/1pR1n2k/br4R1/1rb1bbrB/5PR1/Pq4BN/4N1Q1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 g4 h5 g5 d5 c5 d3 Ke3 b3 Kd4 b2 c6 d2 Kc5 h3 c7 e3 Kb6 h4 Qa4 d1B Qa5 d4 Qb5 d3 Rh2 d2 Na3 b1Q Rg2 h2 Bc4 h1Q Bb3 e2 Qd5 e1B Qb5 h3 Bd5 h2 Bc4 Rh4 Qb4 Nh6 Nb5 Bd7 Bd3+ Nf5 Rg3 Nc6 Qc5 Nd4 Be4 Bh6 Nf3 Bb3 Na3 d1R Nc2 Rb8 Ka7 Bc4 c8R Ne6 Rc6 Ba5 Nce1 Rg4 Be3 Kg7 g6 Rd5 Bg5 Qb2 Bh4 Bf4 Rd1 Kh6 g7 Qh8 g8Q Re5 Rd5 Ng7 Qe3 Rh5 Rg5 Qh7 Ng2 Qha1 Nge1 h1B Nh2 Bf3 Bd5 Be4 Qb6 Bb1 Bg2 Be4 Rb5 Rd5 f3 Rd4 Rg5 Rd5 Qe3 Rb5 Rd6 b6 Rc6 Rf8 Qc5 Rf5 Qg1 Rb4 Ka8 Rfb5 Rd5 Qe5 Rdc5 Qab2 Rd5 Qh5 Rg5 Qh8 Qf1 Qg6 Qg1 Qgh7
RRQ2K2/q1B1p2P/4r1q1/Q3nB2/P1q4k/1n1brp1n/q2NNb2/1R2b1q1 w - - 0 1 illegal: No proof kernel
1Qq5/1r1pr2K/1pB3q1/R1BP4/1n2nPq1/r2nN2R/4kbQq/Q2b1Nq1 w - - 0 1 illegal: No possible last move
N1K5/B1PNR3/3knpR1/rbb2rbr/7b/QqQq1P2/p2Bb1n1/1R1q4 w - - 0 1 legal: proof: d4 h5 g4 hxg4 a4 e5 d5 b5 e3 bxa4 d6 e4 Bd3 exd3 Nh3 cxd6 Ng1 d5 Qe2 d4 Qd2 Na6 Qd1 Nb8 Kd2 Ke7 b4 g5 h4 a5 c4 d5 f3 a3 c5 g3 e4 a4 b5 g2 b6 f6 e5 g4 h5 a2 h6 g3 e6 a3 b7 Ra5 c6 Nd7 b8B Nc5 h7 Bh6+ Bf4 Bd7 c7 Bg5 Bb2 Bb5 Qb3 Nh6 Nh3 g1B Qc3 g2 Nf2 Ng4 Rh6 Ne3 Ng4 Bf2 Rg6 g1B Ne5 Bfh4 Nd7 Ng2 Bc1 Qg8 Be3 Kd6 e7 Ne6 e8R Bgf2 Re7 Bg1 Kd1 d2 Kc2 d3+ Kb3 d1B+ Kb4 d4 Nd2 Be2 Rb1 a1R Bf2 a2 Be3 Qb8 Bf2 Rg8 h8Q Rg7 Qf8 Rh7 Nb6 Rh5 Nb3 d2 Nc5 d1Q Na8 d3 Nd7 d2 Be3 Qc2 Ba7 d1Q Bd2 Qd3 Qg8 Nd4 Qgb3 Ne6 Qa3 Qg8 Rb3 Rc1 Rb1 Bc4 Bae3 Rf5 Ba7 Bc5+ Ka5 Qf7 Ndb6 Bb5 Nd7 Bb4+ Kb6 Bc5+ Kb7 Rc2 Qcb3 Rc4 Kb8 Ra4 Qc3 Ra5 Kb7 Nf8 Kb8 Qfb3 Kc8 Ne6
3brQ2/N1p1P1bN/3BpRRq/1n3brr/b1qn4/1Q1P1B2/4B3/1Kq1kb2 w - - 0 1 illegal: No proof kernel
1R1rK3/bPN1p2n/1q5Q/2Nq1P1Q/1Q1p1B1R/3bnr2/r1k1nn2/n4B1q w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 f4 Kg6 g4 d5 b4 a5 c4 h5 b5 e3 Kf3 h3 b6 h4 b7 e2 c5 e1N+ Kf2 d3 Ke3 d2 Kd4 h2 Ke5 a3 c6 h3 g5 a4 c7 a2 Nc3 a3 Qe2 d1N Rb1 a1R Rb2 a2 Qg2 Nf6 Qc2+ Bf5 c8Q Bh6 Qd7 Ne3 Nf3 Ra3 Nd2 Bd3 Ke6 Nc6 Rb4 Nh7 Qb3 Qb6 Qd6 Nd4+ Kd7+ Kf5 g6 Ne2 g7 Rb8 Rg1 h1Q g8Q h2 Nb5 Qf3 Qd8 h1Q Qe8 Bg7 Qc3 Bd4 Nb3 Ke4 f5 Rba8 Qh5 Rd8+ Ke6 Qfg2 Kf7 Qf3 Ra4 Qfg2 Ra8 Bc5 Qdh2 d4 Qb4 Bb1 Q2h3 Nc4 Na5 Nd3 Bd2 Qa7 Qh6 Nf2 Qh2 Kd3 Rb8 Qf3 Bf4 Qd5+ Qe6 Qa6 Nb3 Ba7 Qh5 Qb6 Rg4 Bc2 Nc7 Bb1 Qa4 Kc3 Qa5+ Kb2 Nc5 Rf3 Qe1 Ne3 Rh4 Bd3 Qa5 Kc2 Qb4 Rb1 N5a6 a1N Nc5 Rd7 Ke8 Rb2 Qeg6 Ra2 Qgh6 Rd8+
N1b1b2r/pq5R/1b1NR1B1/n1BkP3/1r4b1/Q3QN1p/2n2qP1/b1K1qr2 w - - 0 1 illegal: No possible last move, all moves rejected
KBb3qN/pr1Q3P/1nnq4/3N2p1/1bBb1NPR/b1r2QbR/3n4/2k3q1 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 e5 h5 e6 h4 Qe2 fxe6 Qd2 e5 Qe3 e4 Qg3 hxg3 Ke2 Kf7 h4 Kf6 c4 Ke5 b4 g5 h5 d5 f3 d3+ Ke3 d4+ Kd2 Kf4 c5 e5 b5 e3+ Ke1 e4 b6 d2+ Ke2 d1N c6 g2 c7 a3 b7 a2 h6 Rh7 Rh4 Nc6 b8Q Ba3 Qb7 Nb2 Nc3 Nf6 Bd2 Re7 h7 Na4 Rh3 Qg8 Nd5+ Ke5 Rc1 a1B Rh4 Bc3 Nh3 g1Q Nhf4 Bcb4 Rc3 d3+ Ke1 Kd4 Kd1 Bf5 c8Q e2+ Ke1 Rb8 Qcd7 Rc8 Bc1 Bc5 Kd2 Bb6 Rb3 Kc4 Bb2 Bd4 Bc3 Rf7 Ba5 Rg7 Bc7 Be6 Bb8 e1B+ Kd1 Bg3 Kd2 Bdb2 Nh3 Rf7 f4 Bd4 f5 Re7 Nhf4 e3+ Kd1 Ne4 f6 Bf5 f7 Nd2 f8N Rc7 N8g6 Rg7 Qe7 Bc8 Nh8 Rf7 Qd7 Rg7 Rb2 e2+ Kc1 e1B Kd1 Nb1 Rbh2 Beb4 R2h3 Kb3 Qa8 d2 Ke2 Kb2 Kd3 d1Q+ Kc4 Kc1 Kb5 Rb7+ Ka6 Nd2 Be2 Re7 Bc4 Re3 Bc7 Rb5+ Qb7 Nf1 Nb6 Be5 Nfg6 Qd6 Bb8 Rc3 Nf4 Nd8 Qc6 Nd2 Qf3 Nc6 Nbd5 Be6 Qc7 Bd4 Qf7 Rc5 Kb7 Bc8+ Ka8 Rb5 Qe8 Rb7 Qd7 Nb6+
1QQr3B/p4PK1/1R1r1q2/1q4B1/Rb4bN/P1q2bp1/Nqr1n2n/2Bqk3 w - - 0 1 illegal: No possible last move, all moves rejected
4q1bb/1bBn2R1/4B1K1/Q1rbNP2/p3Nb2/k3bP2/2r1n1Rp/b2Nn2Q w - - 0 1 illegal: Other
Br3bnk/n1r5/3Nq1rB/1r1p2P1/2rr2RP/1Q3K1R/n1bNQQp1/5r2 w - - 0 1 illegal: No proof kernel
1b4n1/P1r3R1/q1k3rb/np1rRbr1/p1N1Nrr1/3B4/1PN1Q3/BK3Q1r w - - 0 1 illegal: Other
1bb1q3/1R2brrN/1K1RBq1k/1nN1b3/2pP1r1q/p4Q1P/BQ4n1/2B3n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 g5 b4 f5 e4 Kf7 d3 Kg7 b5 a5 e5 c5 b6 a3 b7 c3 h3 a2 e6 f3 Ke3 g3 e7 c4 e8B c2 Ba4 g2 Na3 f2 Nb5 f4+ Ke4 g4 Nc3 f3 Rh2 g3 Bc6 a4 Ba3 c1Q Nge2 g1B Rh1 g2 Rh2 Na6 b8Q Qh4+ Kd5 Ra7 Bb5 Rf7 Kc6 Rh7 Rh1 Qe3 Qb6 Nh6 Nf4 Be7 Bc1 a3 Rb1 a1B Ng6 Bh2 Nf8 g1N Na4 Bae5 Nc5 Ng4 d4 Bhg3 Bd3 f1Q Qb8 f2 Kb6 Qe4 Bd7 Nc7 Be6 Nb5 Qf3 Ne3 Rb3 Bgf4 Bb1 Kh6 Ba2 Rhg7 Nh7 Ng2 Rb4 Qg6 Ra4 Qgf6 Ra6 Qe1 Qbb7 f1R Rh2 Ne3 Rb2 Bh2 Qg2 Rf5 Qbf3 Rf4 Rb3 Bb8 Qb2 Ng2 Kc6 Nc7 Rd3 Bd6 Bd7 Qe8 Rb3 Bg3 Rb7 Nb5 Kb6 Bh2 Be6 Be7 Ka5 Bg3 Rd6 Bh2 Ng5 Re4 Kb6 Be5 Nh7+ Rf4
1qqN3R/qrQ1rB1r/1bn2nR1/b1P2Qnn/p4KR1/2BP1N1b/4k1p1/8 w - - 0 1 illegal: No proof kernel
r1n1Q1nK/knr1B3/r4Rb1/2p2Q2/B1Rb1q2/qP3bR1/N3pPq1/1r3N2 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb7 Kg5 c5 g4 e5+ Kh5 a5 d4 h3 d5 a3 d6 e3 g5 e4 g6 h2 g7 c3 d7 e2 Qe1 c2 Bg2 a4 Bd2 c1N Bf1 a2 Bc3 a3 Nh3 e3 Bd2 Nb3 Qc1 e1R Qc2 e2 Qc4 Ka7 Bb4 Qf6 d8Q Na5 b3 Nd7 Nc3 Nb6 Rc1 a1R Nf4 a2 Nfd5 Qf4 Qe4 Nb7 Ba5 Bf5 Bh3 Nc8 Qde8 h6 Qf3 Rh7 Bd8 Bd6 Bg2 Be5 Be7 Bd4 Ne3 Bd3 Rc2 Reb1 Nf1 Be4 Rg1 h1B Bh3 Bd3 Rg3 Bg2 Qe4 Bf3+ Kg6 h5 Bd7 h4 Ba4 h3 Qf5 h2 Kf7 h1Q Kf8 Nf6 g8R Qg2 R8g6 Ng8 Rf6 Rg7 Qg4 Bg6 Qf5 Rd1 Rc1 Rb1 Rc2 a1Q Na2 Qb2 Rc4 Qa3 Bd8 Rd7 Be7 Rc7 Kg7 Rd3 Kh8 Re3 Rb4 Re6 Rc4 Ra6
5N1k/bQ2Kbn1/1nBR4/1PqP2pB/4brQq/q6n/p1r2B2/2Rrb2N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 c5 e4 a5 h4 f5 b4 Kf7 d4 f3 Kg3 c3 Kf4 f2 Ke5 g3 d5 a3 h5 a2 b5 f4 h6 c2 h7 f3 Bg5 c1Q Qe1 c4 Qd2 a4 Bg2 f1B Qe2 a3 Bf6 f2 Bg5 c3 Qb2 c2 Rh2 Bb4 Ne2 Nd7+ Kf5 Be1 e5 Nh6+ Ke4 Rf8 h8Q Nb6 Be3 Qh4+ Nf4 g5 Qb4 Nf5 Nc3 Ng7 Bf3 g2 Nd1 g1N Qh7 Nh3 e6+ Kf6 e7 Be6 e8B Bf7 Bc5 Rc8 Bc6 Bg2 Kd4 f1R Nf2 Bh1 Bh5 Be4 Nh1 Rc7 Ng6 Rcc8 Rb1 a1Q+ Qb2 Qa2 Qb4 Qb3 Qa4 a2 Ra1 Qca3 Rc1 Qbg3 Qc4 Qd6 Qe2 Rf4 Qg4 Rfe8 Nf8 Rc7 Rb1 c1B Rc2 Bcd2 Rbc1 Re5 Rc4 Ref5 Ra4 Rf1 Ra8 R5f4 Rd8 Rc8 Bb4 Qc7 Kc5 Qca7 Kd6 Be3 Ba8 Rc2 Bc5 Bb4 Rd7 Rd1 Bc6 Be1 Rd8 Bg1 Rd7 Qc3 Bf2 Qaa3+ Kc7 Qcc5 Kd8 Bfg6 Rd6+ Kf7 Qh6 Kg8 Ke7 Bf7 Qhe6 Kh8 Qd7 Qhg3 Qc8 Qh4 Qb7 Nd7 Nh7 Qcc3 Bg3 Ba7 Nf8 Qcc5 Bf2 Nb6
N2q4/4nQrQ/b2QBR1p/1qbrn1q1/1Rb2pP1/nq4B1/3PK3/2kr1N2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 a4 Kd6 g4 Ke5 a5 Kd4 a6 c5 e5 b5 a7 f5 e6 h6 e7 f3 e8Q f2+ Ke2 h3 Qe6 h2 Qg6 b3 Ba3 f4 Bh3 f1B+ Kf2 b2 Qc1 c3 Qg5 Kd3 Nf3 b4 Qe5 c2 Nd4 b3 Kf3 c4 Qc7 c3 Bc5 Ba6 Bg2 Nc6 Kf2 Rh7 Qe1 c1Q Qee5 c2 Bd5 Qd1 Nc3 c1R Nde2 Kc2 Nb5 b1N Qf7 b2 Nc7 Nge7 Qd6 Rg7 Be6 Ne5 Ng3 Bfc4 Nf1 Na3 Rb1 Rb8 a8Q Rb5 Qb7 Ra5 Ra1 b1Q Na8 Qb5 Qe4+ Kb2 Qh7 Qdb3 Rg1 h1Q Bb6 Nd3+ Ke2 Rd1 Bf2 Qh4 Bg3 Qhg5 Ra2+ Kc1 Rb2 Qa2 Rb4 Qb3 Rh1 Qbb6 Rh5 Rd5 Qff5 Qb5 Qf7 Qg6 Rf5 Qg5 Qc5 Ng6 Qd4 Bc5 Rf6 Ne7 Qe5 Ba7 Qb8 Bc5 Qd6 Ne5+
Q2r1B2/1b3n2/bb1qBPpp/q3r1rP/NNn1Q1n1/1Rb2B2/6KR/2k2q2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 f4 Kd7 Kf2 Kd6 a4 Kc5 d4+ Kb4 h4 b5 h5 c5 d5 e5 a5 h6 a6 c2 a7 Kb3 f5 c4 d6 g3+ Kg2 g6 d7 e3 Na3 e2 Qd2 e1B Qd6 b4 Rh2 e4 Qc5 e3 Nb5 c3 Qc6 e2 Qc7 Bc5 Qe5 Bb7+ Qe4 Nf6 Qf3 Bb6 Ra5 Ng4 f6 Nc6 Ba3 c1Q Qe3 Kc2 Kf3 g2 Qf2 b3 Kg3 b2 Nc7 b1B Nh3 g1R+ Kf3 Re8 Qe3 Re5 Rb5 Na5+ Nd5 Nc4 Rb3 Qb8 d8Q Qd6 Qf8 Rd8 a8B Qd2 Bb4 Kc1 Qe4 Bd3 Ng5 c2 Ne6 Rg2 Bc5 Qa5 Nb4 Bc3 Qe8 Rg1 Bh3 e1Q Qf8 Qc7 Be7 Qd6 Nc5 Bf1 Na4 Bd3 Rf2 Qf1 Qg8 Nce3 Qh8 Bda6 Bf8 Nc4 Qg8 Nge3 Bc8 Rgg5 Be6 Ng4 Qh8 Kd1 Kg3 c1N Ra2 Nd3 Rh2 Qf4+ Kg2 Kc1 Nc5 Ref5 Na4 Nde5 Be7 Nf7 Qe8 Bc8 Bf8 Re5 Bad5 Bcb7 Bc6 Rd7 Qa8 Rd8 Qe2 Qfd2 Bf3 Qd1 Qe4 Qf1+
1b2rQB1/k3N2b/r1R1PRrq/pR2nKp1/3Pq3/Q2n2r1/5BnN/b5q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 e4 Kc6 b4 Kb6 h4 f5 d4 a5 e5 c5 h5 a3 h6 a2 h7 g3+ Kf3 g2 b5 c3 Ne2 g1R Qd3 c4 Bg2 c2 Nec3 Qd5+ Qe4 Nh6 Bb2 c1N Bh3 Ka7 Bg4 Nc6 Ba3 Nd3 Bh3 Rg6 Be7 Ng4 Ba3 Bd6 Bb4 Re8 h8Q Bb8 Rf1 Ne3 Nd2 Ng2 Rac1 a1B Qf8 Qe6 Nd5 c3 Bd6 c2 Qe3 Bb7 Ne7 Qd5+ Ke2 Qe4 Nf3 Bc8 Nh2 f3+ Kd2 f4 Be6 f2 Bg8 Bf5 e6 f3 Bg3 Nce5 b6+ Ka6 b7 Ka7 Rg1 f1Q Bf2 Rg3 Rh1 Qg1 Rf1 Bh7 Rc1 Bd6 b8R g5 Rb5 Bb8 Ng4 Qh2 Rhf1 Qh4 Nh2 Qh6 Rcd1 c1R Rde1 Rc3 Rc1 Rc7 Rc6 Rd7 Ng6 Rg7 Ne7 Nde1 Qa3 N1d3 Rfc1 Rg6 R1c5 Nf7 Rf5 Nfe5 Rf7 Nc5 Rf6 Ncd3 Be3 f2 Kc2 f1Q Bf2 Qg1 Kd2 Nf3+ Kc2 Nb2+ Kc3 Nd3+ Kc4 Qe2 Kd5 Qc2 Ke4 Nfe5 Kf5 Qe2 Rc4 Ka6 Rd5 Kb6 Rc2 Ra6 Rc6+ Ka7 Rb5 Qe4+
r1BbnN1K/1Rr1n3/1B1P1q2/pbP1prk1/6q1/4q1R1/2nQQ1nb/1N4R1 w - - 0 1 illegal: No proof kernel
RB1N2r1/1K1b2Q1/pP1qBPr1/2k1b1N1/2p4b/4rBRq/Q2n4/1b1n1n1q w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 e5 f4 h5 g4 h3 b4 c3 d4 a6 d5 h4 b5 a3 f5 c2 g5 h2 g6 c4 f6 h3 g7 a2 b6 Bd7 Qh5 Rh6 Bd3 Nc6 Nf3 Nd4 Bb2 c1Q+ Nfd2 Nb5 Bc3 Qa3 Qf7 Ne7 g8B Kc5 d6 Nd5+ Ke2 e3 Kf3 e2 Ke4 e1B Be2 Ne3 Nf3 Rg6 Ng5 Bh4 Bf3 Nf1 Qg7 Qc8 Rg1 h1B Nd2 h2 Re1 a1N Be6 Nb3 Nf7 Bg2 Rd1 h1Q Nd8 Bh3 Rg3 Bg2 Kf5 e4 Be5 e3 Ke4 e2 Bf4 Rb8 Ke5 e1R+ Ne4+ Kb4 Kd5 Re3 Rd3 Nbd2 Ng5 Bh3 Rd4 Bf5 Be5 Bb1 Rd3 Be8 d7 Bd6 Bf4 Bc7 Kc6 Nc3 Rd5 Ra8 Re5 Qb8 Rd5 Be5 Rc5 Qd6+ Kb7 Nd1 Rc8 Ba1 Be5 Qdd3 Bb8 Qd6 Nc6+ Kb5 d8Q Kc5 Qde7 Be5 Nd8+ Kb5 Qc7 Bd7 Qc6+ Kb4 Qe4 Qb3 Qc2 Qc3 Qa2 Qcd3 Nc6+ Kc5 Rf8 Qf5 Nd8 Qfh3 Ba7 Kd4 Ndf7 Re8 Rh8 Re7 Ra8 Re8 Nd8 Kc5 Bb8 Rg8
Rq2b1R1/1B3kPn/b4N1b/n3PN2/p1np3Q/1Rq1b3/rBr1qQrK/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 f5 g4 d5 Kg2 a5 b4 h5 e4 d3 c4 a3 e5 f3+ Kh2 f2 b5 d2 g5 h3 c5 a2 b6 f4 b7 f3 c6 h4 c7 Bh6 g6 Bd7 c8R Nc6 b8Q Nf6 g7 Nh7 Rc7 Kf7 Qe2 d1N Qe3 Nb2 Qc5 Nc4 Be2 f1Q Be3 f2 Qb3 Qb8 Nf3 Rc8 Bd3 Qe2 Qba3 f1B+ Bf2 d4 Nbd2 Be3 Rb1 a1B Ra7 Bc3 Ne4 Bcd2 Rb3 Bc1 Ra6 Be8 Qb2 Bh6 Nf6 Bce3 Be4 Ra7 Rab6 Ra6 R6b5 a4 Qb6 N6a5 Qd8 Rd6 Bb7 Rcc6 Nd7 Rg6 Rb6 Rg4 Ra6 Rg3 Ra8 Rc7 Rg1 Rc8 Nf6 Rg2+ Kh1 h2 Be1 Rc7 Bc3 Qd2 Qa2 Nb2 Qd6 Ba6 Rc1 Rf2 Bc8 Beb5 Ng4 Re2 Nf2 Rc5 Kg2 h1R Qd8 h3+ Kg3 h2 Ne4 Rc7 Bb7 Rg1+ Kh3 Rg6 Nh4 Qd3 Qg5 h1Q+ Kg3 Rh2 Nf5 Qhd1 Nf6 Rd2 Kh3 Q1c2 Qh4 Rgg2 Bb4 Qd1 Ba3 Rdf2 Rc6 Q3c2 Rd6 Rc3 Re6 Nbc4 Re8 Qdd2 Rg8 Be8 Bc1 Qcd1 Ba3 Rc1 Qb2 Qc3 Qd2 Ra1 Bb2 Ra2 Qe1 Rc2 Qef2 Rg6 Kh2 Qe2 Qg4 Rg5 Qh4 Rg2+
N2b4/B1r2PrB/1q3rN1/Qq1pq1R1/1Nb4P/1k3n1K/bn1n1pQR/3q4 w - - 0 1 illegal: No proof kernel
1K1NQ3/1BQ1Rp2/n1R1BPp1/r1q2Q2/1n1q1qP1/Nr1nrk2/r7/2b2bb1 w - - 0 1 illegal: No possible last move
bRN4Q/1qnP4/QNp2B2/r1prR3/1bR1P3/b4nnn/2B5/K1kr1q1q w - - 0 1 legal: proof: f4 a5 g4 e5 c4 exf4 b4 axb4 c5 h5 c6 hxg4 Na3 dxc6 Nb1 c5 d4 Kd7 Kd2 Kc6 Kc2 Kd5 Kb2 Ke4 h4 g5 a4 f5 a5 g3 d5 b3 e3 f3 a6 g4 h5 g2 a7 f2 d6 g3 h6 f4 d7 f3 h7 Ne7 Qd6 Nf5 Na3 Qh4 Rb1 Nd4 Rh3 Na6 Ka1 b2+ Ka2 b6 Be2 f1Q Qf6 f2 Bf3+ Kd3 e4 Bb7 Nc4 Kc2 Bg4 Nf3 Ra1 b1R Be3 Rd1 Ne2 g1N Qe6 g2 Rh2 Nh3 Nc1 g1B Ne2 Rg8 h8Q Rg5 Qd6 Rgd5 Bd4 Qh7 Rh1 Bh2 Qdf6 Bhd6 Nc3 Bde7 Nd6 Bc6 Nb1 Kc1 Nc8 Bb7 Qc6 Qh6 Qb5 Qc6 Rh2 Qh1 Qa5 f1N Bf6 Ng3 Rd2 Qb5 Rd4 Qbf1 Bh5 Bh6 Qb5 Bd2 Qe2 Bb4 Nd2+ Kc2 Rb1 Bd6 Rb3 Kc1 Nc4 Ba3 Rd2 b5 Bf7 Rd3 Qd8 b4 Qh8 c6 Ka1 Bc7 Bg8 Rd6 Rd5 Ba5 Re5 Nc7 Rd3 b3 Rd4 Rb8 a8R Be1 Ra7 Ba8 Rb7 Bd2 Rb4 Rb5 Bf7 Ra5 Rb8 Bf4 N4b6 Be3 Na4 Bd2 Qa6 Be1 Bc4 Rd5 Bd3 Bd2 Bc2 b2+ Ka2 Bg5 Rc4 Bh6 Kb3 b1Q+ Kc3 Qb7 Nab6 Bf4 Kb3 Bg5 Ka2 Bd2 Ka1 Bdb4
1r1q2bK/3p3n/B2r2QB/1qnk1N1R/2rnRPbr/1pq1b3/1P3N2/4N1Q1 w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 a5 c5 a6 cxd4 Kd2 Qa5+ Ke2 Qxa6+ Ke1 Qa2 Ke2 Kf7 c4 Ke6 f4 a5 g4 h5 c5 b5 g5 h3 c6 h4 g6 b4 c7 b3 g7 a4 Qd3 e3 Kf3 e2 Kg4 e1Q Kg5 a3 Kg6 h2 Qe3+ Kd5 Ba6 e5 Qg3 h3 Be2 d3 Qf2 e4 Qg3 e3 Nf3 d2 Qg2 d1R Qf2 Na6 Bf1 e2 Qb6 Qh4 Be3 e1Q Ne5 Nc5 Nc6 Nf6 g8N Rb8 Bd4 Ba6 c8Q Nh7 Bb5 Qc3 Qe8 Qd8 Re1 h1R Nh6 h2 Nd2 Bd6 Bf1 Be2 Kg7 Bg4 Qg6 Qb1 Nf3 a2 Nf5 Qbd3 Qa7 Qb5 Re4 Rf8 Rb1 a1N Ne1 Nc2 Ne5 Rc1 Qb6 Rf6 N5d3 Bf8+ Kg8 Rd6 Bg7 Nd4 Kh8 Be7+ Bf8 Bh4 Ra1 Bf2 Ra5 Be3 Be2 Rf1 Nf2 h1B Qa7 Bhf3 Qb6 Rh1 Bf1 Rh4 Qa7 Qb7 Ba6 Qb5 Qb6 Bh5 Qg1 Bf7 Qg6 Bg8 Bh6 Bd1 Qg1 Rg6 Qf6 Bg4 Qf7+ Re6 Qg6 Rd6 Ra1 Bh3 Ng2 Rg4 Qh2 Qd2 Qg3 Rc2 Rh1 Rc4 Ne1 Qc3 Rh2 Rg5 Qg4 Rh5 Qg1 Bg4 Rh1 Rh3 Rh2 Rg3 Rh4 Rh3 Rh5 Rh4
Q7/nbkp4/1bNn1rr1/1pB3rq/Q3nR1q/1N2Kq1P/RB1P3r/6Nb w - - 0 1 legal: proof: g4 c5 e4 h5 b4 hxg4 e5 cxb4 e6 a5 c3 a4 Bb5 fxe6 Bf1 e5 Bc4 e4 Bb3 axb3 Ke2 e5 f4 b5 a4 g5 a5 e3 a6 b2 f5 g3 f6 b3 a7 g2 c4 g4 c5 g3 c6 e4 c7 Bc5 Nc3 b1B Qf1 b2 Ra3 Bb7 c8N Bb6 Qf3 Nh6 Qf2 Nf7 Ra6 Nd6 Na4 Nc6 Nf3 g1R Qf1 g2 Ke1 e2 Nc3 Bd3 Ra2 b1N Nd1 Nc3 Nb2 Bc4 Ra3 Bd5 Ra6 Qe7 f7+ Kd8 f8B Kc7 Ra2 Qe5 Be7 Qh5 Nc4 Rb8 a8Q Na7 Ba3 Rh6 Bc5 Rf6 Kf2 e1R h3 e3+ Kg3 e2 Kf2 Rb1 Na5 Nce4+ Ke3 e1Q+ Qe2 Rd1 Nb3 Qeh4 Qc4 Rdf1 Qb4 Rf2 Qa4 Rg6 Bd4 Rgf1 Bf8 g1Q Ne7 Qgg4 Ng1 Rh2 Nc6 Rff6 Bc5 Rg5 Bg7 Rfg6 Bb2 Rf8 Ne2 Rff6 Rf1 Ng3 Rf5 Bh1 Ng1 Nge4 Rf4 Qf3+
2Q3rn/b1p3Nq/Pk1Bbn2/5R2/R2r1rBR/3N1npK/Pb1q1qQ1/1b6 w - - 0 1 illegal: Other
r1K2Qn1/kPnQ4/2qR4/3pR1bP/b1r5/1B1N4/NQ1Brnpq/1q4bn w - - 0 1 illegal: No possible last move
3Q4/1pq2kP1/2nb1nN1/P4Qp1/rR1r2B1/nRq2qNR/1B1b4/n2K2rb w - - 0 1 illegal: No possible last move
2N1Rb2/Ppb3nb/2K2Q1n/B1Pp1q1q/1Br3B1/6R1/n2QN1r1/4bkrq w - - 0 1 illegal: Other
1b4Q1/p1br1qrR/N3P3/p4bBQ/KP2Rq2/1n3BNn/kq5r/3r1Qn1 w - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 cxd4 a5 e5 a6 exf4 Nf3 bxa6 Ng1 a5 Kd2 Ke7 e4 Ke6 h4 f5 c4 g5 Kc2 d5 Kb3 d3 h5 g3 h6 d2 e5 d4 h7 f3 c5 Kd5 c6 g4 c7 d3 Qc2 d1R Qg2 f4 Rh3 d2 Rh1 Na6 Rh5 Nh6 Qh1 g2 Rh3 f2 Re3 g3 Qh5 f3 Nh3 g1N Bg2 f1Q Na3 Nc5+ Ka2 Qf6 b4 Bd6 Nf2 Nb3 Qg4 Nf7 Qg8 Bf5 c8Q Bc7 e6 Ng5 Qa6 N5h3 Ne4 f2 Bf3 g2 Qg3 Rag8 Nb5 Kc4 Ka3 Rg7 Ka4 Qb2 Qh2 Bb8 Ng3 Bc7 Re5 Bb8 Nc7+ Kc3 Ra3 Kc2 Qc6+ Kb1 Qb5 Qc4 Na6 Qf4 Re4 f1Q Be2 Q1f3 Ra2 Qh5 Bf3 Qf7 Qe2 Rd8 h8Q Rd7 Qd8 Rf1 Qd1 Rf2 Qf1 d1R Be3 Qd4 Re2 Qb2 Qg8 Ka2 Rd2 Ne2 Rc2 g1B Rc7 Rg2 Bc1 Bb6 Rb7 B6c7 Bd2 Qg4 Bg5 Qf4 Qhh1 Neg1 Qh2 Nf2 Qh5 Rh2 Qhh8 R7d6 Rb5 Qh4 Be7 Bg6 Rh5 Rd7 Bg5 Bf5 Qh6 Qg4 Qg6 Qf4 Rh7 Nfh3 Qh6 Qh4 Qh5 Qf4
3k1B2/NrN1b2n/Bp3r2/2QPnq2/n1Bn1rPp/3Rnb2/4nb1R/3Q3K w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 f5 e4 h5 d4 c5 g4 h3 a4 c3 e5 b6 e6 c2 a5 h4 a6 h2 Kg2 b3 a7 f3+ Kh3 c4 e7 f2 Kg2 b2 Bd2 c1N Na3 b1N Bf4 c3 Qf3 c2 Qe2 Qd5+ Qe4 Nf6 Bc4 f1R Be2 Nc3 Bc4 Nc6 Bd6 f4 Qf3 Rb8 a8Q Na4 Be5 Nd3 Qe4 c1B Rb1 f3+ Kh3 f2 Kg2 Be3 Ne2 Nh7 Bg7 Rb7 Nc3 Qf5 Rb3 Nde5 Qa5 Rg8 Bh6 Rg6 Nd5 Rf6 Qd3 Kd7 e8B+ Kd8 Qdd2 Be7 Nb5 Be6 Ndc7 Bd5+ Kh3 Be4 d5 Bf3 Qd1 B3c5 Rd3 Nd4 Rg1 h1N Kh2 Ng3 Rg2 Nge2 Na7 Rg1 Bf8 f1N+ Kh3 Rh1+ Rh2 Ne3 Beb5 Rf1 Ba6 Ng2 Qb5 Be4 Qb4 Rf4 Qa5 Bf3 Qb5 Bb4 Qc5 Ba5 Rh1 Be1 Kh2 Nc1 Kg1 Bg3 Rh2 Nce2+ Kh1 Be1 Qb1 Bf2 Qd1 Ne3+
1n5b/2n1Br1p/QP4n1/p1N1kr2/2nq2rP/RBN4n/2K3Q1/1RQb1bn1 w - - 0 1 legal: proof: e4 f5 g4 fxg4 d4 b5 a4 bxa4 d5 c6 Ra2 cxd5 Ra3 dxe4 Ra1 e3 b4 Kf7 h4 Ke6 f4 d5 c4 a5 f5+ Ke5 f6 g5 f7 e2 Kd2 e1R b5 g3 c5 g4 c6 d4 c7 g2 b6 d3 Ba3 g3 Ra2 Bh3 c8Q Bg7 f8Q Nf6 Be2 Nd5 Bf1 Re4 Qdc1 Ra7 Nc3 Nc7 Kd1 d2 Rb2 Qd4 Bc4 Rg4 Qf1 Rf8 Bd5 Bh8 Qb1 Rf5 Nge2 g1N Rh2 g2 Kc2 d1B+ Kc1 e6 Bc5 a3 Qg8 a2 Bc4 a1N Nf4 Nc2 Rb4 Na3 Ba2 Nc4 Rb2 Na8 Qc8 Nf3 Rd2 g1N Ne4 Ng5 Qa1 Raf7 Ne2 Kd5 Rb2 e5 Be7 Nc7 Nc5 e4 Bb3 e3 Nc3+ Ke5 Qa6 e2 Qa3 e1N Rb1 Ng2 Qf3 Nge3 Ra2 Ned5 Raa1 Bf1 Qg2 N5h3 Qab2 Bd3 Ra3 Ndf4 Qbd2 Bf1 Qb2 Bf3 Kc2 Ng6 Qc1 Bd1+
RbKn2n1/5P1b/3r1R1r/2N1b3/1Qpb2bq/2P1bn1Q/R2rk1p1/BB2N3 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Ng1 axb6 Qf3 b5 Qh3 b4 Qg3 hxg3 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 h4 Kd4 a4 c5 f3 b5 d3 e3 a5 c4 a6 b3 h5 g2 a7 g5+ Kg3 e5 f4 e4 h6 b2 h7 e2 f5 e1B+ Kh2 b4 f6 b3 f7 e3 Be2 Nc6 Nc3 b1R Na4 b2 Ra2 Bc3 Bd2 Rd1 Kg3 b1B Nc5 Ba1 Bb4 Rd2 Rh6 Qe7 Bf3 e2 Be4 Ke3 d4 e1N d5 Nd8 d6 Nf3 d7 Rd6 Rf6 Be5+ Rf4 Rb8 Bc3 Rb2 a8R Bfg7 Bg6 Bd4 Rf6 Qe4 Nh3 g1B Nf2 Ke2 Nfd3 Bge3 Ne1 Qe7 Ne6 Ba7 Nc5 Bb8 Bd4 Rb7 Ba1 Rb2 c3 Rbd2 Kg2 g3 Kh3 g2 Kg4 g1B Bc2 Kf2 Kf5 g4 Be4 g3 Bd3 Ne6 d8Q g2 Qa5 Bh2 Qb4 Be5 Rh6 Qh4 Rf6 Rd7 Bc2 Nd8 Be4 Ke2 Bc2 Nb7 Ke6 B5d4 Rf5 Bge5 Rf6 Nh6 Be4 Rd6+ Ke7 Nd8 Bf5 Rg8 h8Q Rg6 Ke8 Ng8 Qh6 Qg5 Qh3 Rh6 Bh7 Bg4 Bc2 Re6+ Kd7 Qh4 Kc8 Rb6+ Bf5 Bd3 Bd7 Bh7 Bf5 Re6 Bb1 Rd6+
bN1NkB2/b7/b5r1/4K1Q1/rbrnqPB1/p1r2rBP/1p2RQ1b/2nR4 w - - 0 1 illegal: No proof kernel
1k1b3N/5n1q/1b2rN1B/R4b1b/bbn3Q1/N1Qp2nq/1P1p1PBr/4RK2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 c4 e5 g4 d5 g5 Kd7 g6 Kc7 g7 h5 c5 a5 c6 a3 Qe2 a4 Rh3 a2 Be3 a3 Rf3 h3 Rf7+ Qd7 Qf3 h2 Bg5 h1B Qg2 e3 Bc4 h4 Ba6 e2 Qe4 h3 Qg6 e4 Bc1 h2 Rf6 Nh6 g8N Bf3 Qg5 h1B Qh5 Be7 Qf5 Bd8 Qh7 Nf7 Bd3 Na6 Ne7 Nc5 Rh6 Kb8 Kd2 e1B+ Kc2 Qe6 Bb5 e3 Nd2 e2 Qg7 Ra6 Nb3 Ne4 Kd3 Bea5 Rh5 e1B Rf5 Beb4 Ne2 Ng3 Qg8 Rh2 Ng6 Bh5 Nd2 Rb6 Rg5 Qh3 Nb1 B1f3 Nec3 Bd1 Ne4 Ba4 Nf6 Ra6 Nc3 Bac7 Rb1 a1Q Nh8 a2 Re5 Be6 Bh6 Bca5 Rbe1 Qb1+ Kd2 a1N Bf1 Nc2 Bg2 Ne3 Qg4 Qh7 Rg5 Bd7 Re5 Bf5 c7+ Ka7 c8Q Re6 Qc4 Kb8 Qb3 Nc4+ Kd1 d3 Nb1 d4 Na3 Bab6 Ra5 d2 Qc2 Ne4 Ke2 d3+ Kf1 Bb3 Qc1 Ba4 Qc3 Ng3+
NN2B2K/Q1n3b1/b5bB/N4r1n/3Qb2R/pr2q3/1bP1qpP1/kb2R2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 h5 e4+ d3 b5 f5 b6 d5 b7 a5 Qg4 d4 Qg6 h3 Qg5 f3 Qe3 a3 Qf2 f4 Ne2 h4 Bb2 h2 Bc3 a2 Bb2 h3 Ng1 a4 Qe1 f2 Nc3 f3 Nd5 a3 Qe3 Ra5 Be2 f1B Qd2 f2 Qc1 Be6 Qe1 Qb6 Nf3 Nf6 Bc1 Na6 b8N Nh5 Bd1 d2 Rb1 a1B Nc6 d3+ Bb2 Nc7 Rc1 Qe3 Nfd4 Rh7 Be2 d1B Nb8 Bg8 Bg4 d2 Bd7 Bf3 Ndc6 d1B Be8 Bd3 Rb1 B1e2 Qd2 Rc5 Bd4 Bb2 Rbe1 Rb5 Qa5 Rb3 Qa7 Bf1 Kf5 Rf7+ Kg6 Rf5 e5 Bfe4 e6 Bf7+ Kh7 Bfe2 Rhf1 h1Q e7 h2 Bg7 Qg1 Bh6 h1R Nb6+ Kc3 Na5 Ba6 Nbc4 B2d3 Nb6 Bdc4 Na8 Bg6+ Kh8 Qh2 Nd7 Qh4 Nb8 Qg4 Rg1 Qge2 Rgf1 Rb6 Rg1 Ba2 Rgf1 Bb1 Rg1 Rh3 Rh1 Rb3 Rh2 Rg3 Rh4 Rh3 Ba4 Rh1 e8Q Bc1 Qb5 Kb2 Qd7 Ka1 Qdd4+ Bb2 Be8 Bg7+
4k3/3R3n/1n1QK3/b2r1NN1/pqR1bQp1/2bP2n1/1P2Bnbr/2b1BR1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 a5 h4 c5 e4 f5 e5 g5 d3 c3 e6 c4 e7 c2 h5 c3 h6 f3 Kg3 f4+ Kf2 g3+ Ke1 g4 h7 a3 Be3 c1B Bc5 g2 Kf2 a4 Qe2 a2 Qc2 Bg7 Qe2 c2 Qe1 Nd7 Qe3 Bd2 Bd4 c1B Rh4 Ba5 Na3 Nb6 Nc4 Bb7 Be2 Qd6 Nh3 g1N Bc3 Be4 Ng5 Rd8 Be1 Qb4 Rh1 Rd5 Nd6+ Kd7 e8R Nf6 Rb1 a1R Re7+ Kd8 Nf5 Nh3+ Kf1 f2 Rd7+ Ke8 Rg1 Rg8 h8Q Nh7 Rg2 Bc3 Qf6 Rg6 Qd6 Rh6 Qf3 Rh4 Rg1 Rh5 Kg2 f1N Rh1 Ng3 Rf1 Rh4 Kh2 Rh6 Qe3 f3 Qef4 B1d2 Rd1 Bc1 Rd2 f2 Rc2 Bg7 Rc4 Bc3 Rh1 f1B Rg1 Nh5 Rh1 Bfg2 Rf1 Ng7 Kg3 Nf2 Qd2 Rh2 Kf4 Rd4 Ke5 Nh5 Ke6 Rd5 Qe3 Ng3 Qef4 Rb1 Rg1 Be3 Bd2 Rf1 Be1 Bed2 Rh1 Bc1 Rg1 Bh3 Rg2 Rfh1 Rg1 Bhg2 Rf1 Qa3 Qde5 Qc5 Qd6 Qb4
2Q3r1/1r1NK2n/k2n2R1/2b4P/n2PQpQB/b2N2rb/1n1p1q2/R4Bbb w - - 0 1 illegal: No proof kernel
1R4N1/2rk3r/rQ1nbqn1/3rPnp1/bQ2rb1P/bQN3p1/R2B2B1/1K6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 g5 e4 b5 d4 f5 Kd2 c5 Kc2 b3+ Kb2 c3+ Ka3 c2 Kb2 b4 h4 g3 d5 c4 e5 f3 a5 f2 d6 f4 a6 f3 a7 Na6 Bd2 c1R Ra5 c3+ Ka1 c2 Be3 b2+ Ka2 b3+ Ka3 Ne7 Bf4 Nc7 Nc3 b1B Kb2 Nb5 Ra1 Be6 Qd3 Rh7 Bg2 f1R Nd1 f2 Qc4 Ng6 Qc3 Qf6 Nh3 Kd7 Bd2 Re1 Nf4 f1N Qb4 Ne3 Ra2 Nf5 Nc3 Re4 Nfd5 Rd1 Ne7 c1B+ Ka1 Bc2 Ng8 Rc8 a8Q Rc7 Qb7 Be7 Be3 Rd5 Bd2 Bd1 Qb6 b2+ Kb1 Ba4 Qb3 Bf8 Qd4 Be7 Qdb4 Bf8 Be1 Bf4 Bd2 Kd8 d7 Nbd6 Kc2 b1R Rc1 Ra1 Rb1 Rcc5 Rbb2 Kc7 d8Q+ Kc6 Qdb6+ Kd7 Ra3 Ra2 Kc1 Rc7 Kb1 Bb5 Ra8 Ra6 Rb8 Ba4 Ra2 Nc4 Q4a5 Ba3 Qab4 Ncd6
1br2R1n/b3B2Q/1k1qP1n1/1n1B1nb1/1P1r2NN/p3QR2/pnr2R2/1b3K2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 g5 h4 d5 e4 Kd7 b4 Kc6 h5 a5 e5 f5 h6 f3 c5 d3 h7 d2+ Kf2 d4 Nh3 g3+ Kg1 d3 Qe2 d1N Qe3 f4 Ba3 d2 Ba6 g2 Qb3 g4 Bd3 f2+ Kh2 g1B+ Kg2 f1N Bc2 g3 Bd3 Nfe3+ Kf3 g2 Ke2 Bh2 Qc2 g1B Bf5 Be7 Bb2 a3 Qc4 a2 Nc3 a4 Qb3 a3 Be6 Bg5 Bf7 Nf5 Ne4 f3+ Kf1 f2 Kg2 f1R Nef2 Qd6 Nf4 Nd7 Ng6 Nf8 Ng4 Nc3 Nh4 Rf4 Rf1 d1N Rf3 Nb5 Qe3 Ngh6 Kf1 Rd4 Bd5+ Kc7 c6 Nf7 Bc1 Kb6 c7 Ng6 e6 Bb7 c8Q Nb2 Qd7 Rhc8 h8R Rc2 Rf8 Nfh8 Qh7 Rac8 Bd2 Bhf4 Rh2 Bc6 Rhf2 Bg3 Bc4 Be4 Bc1 Qd7 Bb3 Bb8 Bd5 Qd6 Bd2 R2c5 Be1 Bb1 Bc3 Rd3 Bf6 Rd4 Be7 Rc2 Nh6 Ba7 Ng4 Bh2 Re8 Qd8 Rg8 Bhb8 Rf8 Qd6
Rn1n2r1/n5r1/kn1QPR1B/1bn1QBP1/q2Bp1K1/n5b1/1p1b3q/2N3N1 w - - 0 1 illegal: No proof kernel
8/3nb1K1/1Q1p1rB1/Nb2n1RP/RP2r1r1/Bbbk1p2/1QN3r1/1n1q2bQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Kd5 h4 g5 b4 a5 c3 f3 h5 f2 e3 f4 Ra3 g3 Nd2 g4 Ra1 a3 Qe2 a4 Nh3 a2 Qe1 g2 Ng5 g1R Rh4 a3 Nh7 g3 Rh2 g2 Nc4 f3 Ng5 Rh6 Ne6 Ne7 Na5 Ng6 e4+ Ke5 c4 Ba6 Rh3 Be7 Rg3 Bb5 Qe2 Ra6 Qb2 Rd6 Be2 f1N Rg4 Nd2 Rg5+ Kf6 Bd1 Nb1 Ba4 Re1 Bc2 g1B e5+ Kf7 Nc5 Rf6 Ncb3 Re4 e6+ Kg7 Rf5 Rg4 Rg5 Rg2 Ke4 d3 c5 d2 c6 d1B c7 Rh7 Rc5 Ne5 c8Q Rh8 Nd4 Rg8 Bd3 Bb3 Nc2 Re8 Qc6 Rg8 Ne3 Kh6 Qb7 Kg5 Qb6 Rgg6 Kd4 Kf4 Bf5 R6g4 Bg6 Nf7 Rg5 Ne5 Qa6 Qc7 Qd6 Qc2 Qb6 Qd1+ Qd2 Bd8 e7 d6 e8Q Be7 Qh8 Qc2 Qe1 Nbd7 Qh4 Qe2 Qh1 Qd1+ Bd3 Rc2 Bb2 Rc4+ Kd5 Rg2 Nc2 Rg4 Nd4 Ke3 Bg6 Re4 Qg7 Kd3 Nc2 Nd2 Rc1 a1B Rb1 a2 Ba3 Bc3 Ra1 Rf4 Ke6 Nb1 Qf6 Rg4 Qf4 Rc8+ Kf5 Rh8 Qc1 Rh6 Qb2 Nd2 Rc1 a1R Rb1 Ra2 Rc1 B3a4 Ra1 Nb1 Ke6 Nc6+ Kf7 Nce5+ Kg7 Bb3 Bf5 Re6 Bg6 Rf6 Ne3 Nc4 Qf2 Qe1 Bc1 Rd2 Ra4 Qd1 Ba3 Nce5 Qfh2 Rf2 Q2g2 Rf1 Qb2 Rf2 Nc2 Rfg2
1b2n1q1/nQ2nN2/2PN1p1B/1b3Q2/n1q1R2Q/K3rPR1/pB1k4/nr2b2n w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 h5 bxa4 e3 e5 h6 e4 Bd3 exd3 Kd2 gxh6 Ke1 h5 Ra3 h4 Ra2 Bc5 Ra1 Bf8 Kd2 Ke7 c4 Kf6 g4 Kg5 b4 a5 e4 Kf4 f3 h5 g5 d5 c5 a3 e5 a2 e6 a4 g6 a3 b5 f6 g7 h3 c6 h2 b6 h4 b7 h3 e7 Na6 b8B+ Nc7 e8Q Ba6 Qee1 Bb5 Ba7 Ne7 g8Q Ne8 Qh7 Rb8 Nc3 Bh6 Rb1 a1B Bc5 a2 Ne4 Qc8 Qde2 Bc3+ Kd1+ d2 Kc2 d3+ Kb3 d4 B1a3 d1N Bcb4 d2 Ng3 d3 Qg8 Nb2 Nf5 d1N Qc2 d2 Ba5 Ne3 Bc5 d1N Bd4 Na4 Qcg2 Nc2 Q8g7 Na1+ Ka3 Bd2 Nh4 Ndc3 Q2g6 Qe6 Q7h7 Qg8 Nf5 Qc4 Qf2 Be1 Nd6 Rg8 Qh5 Rg2 Qfc2 Re2 Rb4 Re3 Qf2 Qg8 Qc5 Bg5 Qa7 Bh4 Qb7 Bg3 Qg6 Ncd5+ Qd3 Nc8 Bab6 Nde7 Bb2+ Qc4 B6d4 Na7 Bdc3 Kg5 Bd2 Qg8 Re4 Qc4 Ne2 Bf4 Rf1 h1N Nc3 h2 Nf7+ Kf5 Rg1 Bc7 Re6+ Kf4 Rg3 Be5 Qc7 Rb6 Qb7 Bb8 Ne4 Ba6 Bbc1 Rb1 Ned6 Bb5 Bb2 Nb6 Re5 Na4 Qf1 Nf2 Qh3 h1Q Qh5 Qh4 Re6 Qg4 Qh4 Nh1 Bdc3 Re5 Qf5+ Ke3 Bd2+ Ke2 Bf4 Qg8 Bh6 Re4 Re5 Kd1 Re6 Re2 Re3 Kd2 Re4+ Re3+
r1Q1bbQ1/nbr1BrN1/2pQB2R/3R4/3qr1rn/2PKp3/P3r1N1/k3q3 w - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 d4 Kd7 Kd2 Kc6 g4 Kd5 g5 f5 g6 b5 g7 e5 Bg2 Kc4 d5 h5 d6 b3 d7 b2 Ke3 b4 Nc3 b1Q Nb5 b3 Nh3 f2 Qg1 f1R Ke2 b2 Be3 e4 Nd6+ Kc3 Nc4 f4 Ne5 Bb7 Ng4 Nh6 g8Q Nf5 Qg6 Rg8 Nhf2 h3 Qa6 h2 Qb6 h4 Bc5 e3 Nd3 h3 Nh6 Rc1 Bf3 Rg4 Ne1 Nh4 Qg6 Nc6 Bb6 Na7 Bd5 f3+ Kf1 f2 Ke2 f1R Be4 Rf7 Nf5 Qf6 d8Q Qd4 Qg2 Bc6 Qg3 Be8 Bd5 Re4 Q3d6 Rg4 Rg1 h1B Qg8 h2 Be6 Bb7 Qc8 h1R Ng7 Rh2+ Ng2 c6 Bd8 Rc7 Bd5 Rf1 Be6 Rff7 Rd1 Qc1 Rd2 b1R Be7 Kb2 Rd3 Qg1 c3 Rbf1 Re1 R1f4 Rf1 Re4 Rf6 Ka1 Rh6 Qd5 Rd4 Qe1+ Kd3 Qc5 Rd5 Qb6 Nf4 Re2 Ng2 Qd4+
B2RQB1k/1n6/p2r1rR1/4nbR1/4N1qn/2pPn1b1/2K3Pb/3NQnqn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 b4 f5 e4 Kf7 b5 Kg7 e5 c5 b6 h5 d3 c3 e6 h3 b7 a3 e7 c4 e8Q h2 Qea4 a6 Qb4 f3 Bf4 h4 Bg3 c2 Kd2 c1B+ Kc3 f4 Qd2 a2 Qe3 f2 Qbc5 f3 Qc7+ Ne7 Be2 f1N Nd2 f2 Ne4 h3 Bf4 Rh6 Kc2 c3 Bg5 Rf6 Nd2 Nc6 b8R Bf5 Rb3 Qd4 Rb4 Kh8 Qd7 Ng6 Qc8 Qg4 Bd1 Nh4 Rb7 Ne5 Qe8 Rd8 Bh6 Rdd6 Rb6 Ba3 Qe1 Ne3+ Kb3 f1N Ne4 Bb4 Bf3 Ba5 Rb8 Bc7 Rd8 Bb8 Nd2 Bc7 Ba8 Bb8 Ne4 Bc7 Rb1 a1N+ Ka3 Bb8 Rb5 Nb3 Ka2 Nc5 Kb1 Nb7 Ra5 Qg8 Rd5 Be7 Bf8 Qg4 Kc1 Rh6 Rc5 Bg5 Kb1 Bf4 Rc6 Bg3 Rb6 Rd5 Rg6 Rd6 Rg5 Rhf6 Kc1 N3c4 Kc2 Bc7 Ne2 Bb8 Nf4 Bc7 Nd5 Bb8 Rg1 h1Q Ne3 h2 Nd1 Nce3+ Kc1 Nd2 Rf1 Qg1 Rf4 h1N Rf3 Nd5 Kc2 Nf1 Rg6 Bh2 Rg3 Nde3+ Kc1 Rde6 Nb2 Nc6 Rf3 Bbg3 Nd1 Rd6 Rf2 Be6 Rf5 Ne5 Rfg5 Bf5 Kb1 N3c4 Kc2 Nce3+
bn1B3b/7P/rn3qR1/3N4/B2b1Qq1/NQ3p1p/PKnNkn1r/2nn3R w - - 0 1 illegal: No proof kernel
1nNrQ1q1/5BPk/n1R1q3/n3B3/b2QN1qn/KRp1r3/1P3bp1/3Bnn2 w - - 0 1 illegal: No proof kernel
r1b5/3nbkPQ/BN3n2/3p2qb/B2Nn3/1nQPR2p/1Br2b2/rbRK4 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 g4 d5 e4 b5 a4 c5 a5 f5 a6 h5 e5 h3 a7 h4 d3 h2 g5 c2 e6 b4 e7 b3 g6 b2 g7 f3 Be2 c4 Kd2 h3 Ra3 f2 Qf1 c3+ Ke3 f4+ Kf3 Nd7 Nd2 b1B Qd1 f1B Nc4 Kf7 Ra6 Ngf6 Bb2 c1B Re6 c2 Nb6 Be3 Qd2 c1N Bd1 Bf2 Ba4 Nb3 Ne2 Rh4 Rg1 h1N Re3 Ng3 Nd4 Nge4 Qc3 Bg2+ Ke2 f3+ Kd1 Rg4 Qa5 Bf1 Qb4 Rg2 e8Q+ Kg8 Bb5 Bg3 Qc5 f2 Qc1 Ba2 Ba4 Nh7 Qg6 Qg5 Kc2 Be2 Nc6 f1R Nd4 Nhf6 Qh7+ Kf7 Qe1 Be7 Qc3 Ra1 Rc1 Bf1+ Kd1 Rc2 Qf5 Bf2 Qh7 Rb8 a8B Bb1 Bb7 Ra8 Ba6 Bg2 Qc4 Bf3+ Ne2 Bh5 Qc3 Ng4 Nd4 Ngf6+
2n4n/3QRPn1/rrr1np2/R1n3P1/1N4N1/pk2BQ2/1b2Rq2/1BKnq2b w - - 0 1 illegal: No proof kernel
1bBr1rq1/Q4p2/1R2n2Q/r4p1n/2n3rB/2kNbNP1/P2RK3/Rb2nr2 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 dxc4 f5 g5 f6 gxh4 Rh2 exf6 Rh1 f5 e4 Kd7 d4 Kc6 d5+ Kb5 d6 c5 e5 h5 d7 b3 e6 Kb4 e7 b5 e8Q b2 g3 h3 Nc3 b1R Bh6 h4 Bc1 h2 Nge2 h3 Qe6 Bd6 Qe8 Na6 Qe6 Nf6 Kf2 Qg8 d8R Nh5 Ng1 Bb8 Ne4 c3 Qe7 c2 Bh6 c1N Nd6 c4 Qd5 c3 Qe2 c2 Qb7 Nd3+ Kf3 c1B Qbe4+ Kc3 Bf8 b4 Qe6 b3 Ne8 b2 Q2e4 Nac5 Rd4 Bb7 Be7 Ne1+ Ke2 Be3 Rd8 Ra5 Rd2 Rd1 Nc7 b1N Bh4 Na3 Qd7 Ne6 Qf4 Be4 Na6 Nc4 Nf3 Bb1 Rg1 h1R Qh6 h2 Nc5 Nb2 Nd3 Nc4 Rg2 Rg1 Rb2 h1R Qa7 Rh3 Rf2 Rh2 Bg2 Rf1 Rb6 Rhh1 Ng1 Rh2 Bb7 Rh3 Bc8 Rh2 Be7 Rh4 Nf3 Rd4 Bh4 Rg4 Nb2 Rd8 Nd3 Bbf4 Kd1 Bb8 Rd2 Qg6 Ke2 Rhf8 Rb7 Qh7 Rb6 Qg8
1q2BN1B/K3p1r1/1n3b1n/1bN1r1k1/RPR5/1nq1n2p/nb1PR2Q/5Qn1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kf7 Ke3 Kf6 f4 a5 b4 c5 g4 h5 f5 h3 Qe1 h4 Bb2+ c3 Qe2 h2 Ba3 c2 Bc1 c4 Bb2+ c3 Qa6+ Kg5 f6 c1Q f7 a3 Qb7 a4 Bd3 h3 Bf1 c2 Ne2 a2 Qa6 a3 Ng3 Rh5 Ne2 Bd7 Kd4 e3 Kc5 Bb5 Be5 Nh6 Nd4 e2 Qd6 e1N Nc3 Nf3 Bh8 Bg7 f8Q Bf6 Na4 Ng1 Qg3 Qe8 Kb6 Nd7+ Kb7 Rc8 Ka7 Nb6 Nc5 Qb2 Bg2 c1N Bc6 Qc3 Qf7 Qd8 Be8 Rc6 Qc4 Re6 Qf1 Re5 Nd7 Rh4 Nf8 Qd6 Nb3 Rh5 Rb1 a1N Nc5 Nab3 Ra1 a2 Qgf2 Nf3 Rg1 h1N Qh2 Ng3 Rg2 Ngf5 Rf2 Ng1 Re2 Nd3 Rc1 a1B Rc2 Ne3 Rc1 Kh4 g5 Bb2 g6 Kg5 g7 Rh4 Ra1 Ndc1 Ra4 Rg4 g8R+ Kh4 Nfd7 Na2 Nf8 Rg2 Rg5 Rg4 Rf5 Rg7 Rf4+ Kg5 Rc4 Qb8+
4K1qk/3PNpr1/4N3/1r6/3B2bn/2prqBQn/PQr1R1R1/1bbrr1N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 c5 Kf3 h5 Ke4 b5 Ke5 f3 d4 b3 e4 f2 g4 h3 g5 c3 g6 c4 d5 c2 d6 h2 g7 h4 Qd3 b2 Qe3 h3 Qf3 c3 Nd2 b1R Nb3 b4 Qe2 Ne7 Kf6 Nd5+ Ke5 Nd7+ Kf5 Rg8 e5 Qb6 e6 Ne5 Bf4 c1R Qd2 Ng6 Na5 b3 Be2 f1R Qd4 b2 Bf3 Rfd1 Bd2 Rc2 Nb7 Ndf4 Kf6 Nh4 e7 Bg4 Qd3 Qe3 Nc5 Rd8 Ne6 Re1 Qg6 Rbd1 Qg5 b1B Qb5+ Rd7 Qb2 Rb7 Bc1 Rd3 Bd2 Rb5 Bc1 Rh8 g8N Rh7 Bd2 Bh6 Bc1 Qa7 Be3 Rg7 Bd4 Qb6 Ne2 Qc5 Rg1 h1R Rg2 h2 Ng1 Red1 Ne2 Rhe1 Ng1 h1Q Re2 Nh3 Rg2 Rcd2 Re2 Bc2 Rc1 Bb1 Rc2 Rc1 Rg2 Rdd1 Rcf2 Rc2 Re2 Bc1 Nd8 Kd7 e8Q+ Kc8 Qe4 Kd7 Ne6 Ke8 Ne7 Qb6 Qe3 Qc5 Ng5 Kf8 d7 Qa7 Qe5 Qh2 Qg3 Qb6+ Nc6 Kg8 Ke7 Kh8 Ne6 Qc5+ Ke8 Qe5 Ne7 Qe3 Bd5 Qh1 Rgf2 Qhe4 Rg2 Qh7 Bf3 Qg8+
2n2k1K/q2PpN2/b1BQ4/Pq1n1R2/Q1pQ4/1nB1br2/n1Rr2nn/q5N1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 b5 Ke3 c5 Kf4 h5 Ke5 h3 f4 e3 d4 e2 g4 e1N a4 c3 f5 c4 f6 h2 a5 c2 g5 h4 d5 h3 g6 b3 d6 b2 g7 b4 Bd3 b3 Qe2 Nc6+ Ke4 Qc7 Kf4 Na7 Ke5 Ba6 Bd2 c1N Qe4 Na2 Be2 Ng2 Kf5 Rd8 Kg6 Nc8 Na3 b1N Bc3 b2 Qd4 Qa7 Bf3 Nd2 Nb5 Nb3 Rc1 b1Q+ Rc2 Rh5 Be4 Rf5 Kh7 Rf3 Kh8 Rd7 Bc6 Kf7 Ne2 Qb2 Rb1 h1Q Rf1 h2 Rf2 Qd1 Ng1 h1N Rf1 Ke8 Rff2 Qda1 f7+ Kd8 Rf1 Nf6 g8Q Nf2 Qg3 N2g4 Rff2 Bh6 f8Q+ Ne8 Qf5 Be3 Qfd3 Nc7 Qd1 Ke8 Rf1 Rf7 Rf5 Nd5 Qgf4 Kf8 Qfe5 Rb7 d7 Nh2 Nd6 Rf6 Nf7 Rb6 Rg5 Rf3 Rf5 Qbb1 Ba4 Rf6 Qd6 Rf2 Bc6 Rd2 Rg5 Rf3 Rf5 Bf2 Qc1 Be3 Qca3 Nc5 Qa4 Qb5 Q4f6 Nb3 Qh4 Nf1 Qd4 Nh2
N1r1B1n1/r1p2Npb/3NR3/1nqPn2P/1B4kb/rn3b1R/4b2Q/3bQ1K1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 h4 Kf5 d4 b5 h5 f3 d5 b3 a5 b2 e3 b4 a6 c3 a7 g3+ Ke1 f2+ Ke2 g2 e4+ Kg4 e5 f5 e6 f4 e7 f3+ Ke3 c2 e8Q b3 Qe7 Qd6 Bd3 f1B Kf2 Qc5+ Be3 c1N Bc4 Nd7 Qf7 Be2 Ra2 Ne5 Ra5 Be7 Qe1 Bd1 Na3 b1N Qe8 b2 Rh3 Nc3 Nb5 b1B Ra6 Bh7 Nd6 Nb3 Bb5 Be6 Bc6 Nb5 Rb6 Rc8 a8N Bef5 Qf8 Be4 Be8 Bd8 Qf6 Be7 Qh6 Bf6 Bd4 Be7 Qhd2 Bh4+ Ke3 f2 Nf3 f1B Ng5 g1R Qh2 Rh1 Ngf7 Bef3 Ra6 Bf1e2 Rb6 Bg5+ Kf2 Rg1 Rc6 Rg3 Ra6 Bh4 Be3 Bg2 Kg1 Rf3 Bd4 Re3 Bc3 Bgf3 Nb6 Ra8 Bb4 Ra7 Na8 Nh6 Bc6 Rc8 Be8 Ng8 Ne4 N3d4 Re6 Rea3 Ned6 Nb3+
3nnN1b/k1p1qP2/6K1/B1pP2N1/2BQr2r/nb3r1n/2N3Rb/2rr2RQ w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 e5 d6 c5 dxc5 e6 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 e5+ Kh5 b3 a4 h3 d4 b2 g4 e3 f4 e2 a5+ Ka7 a6 e1B g5 b5 f5 b4 f6 b3 g6 h2 g7 e4 f7 e3 Bg2 e2 Bd5 Be6 Bg5 Bc3 Bh4 e1R Bc6 Qe7 Nh3 Nf6+ Kh6 Re4 Bd7 Ne8 Ba4 Nc6 Qf3 Nd8 Na3 b1N Qf4 b2 Bb5 Bb3 Nc2 Na3 Rhg1 h1R Rg2 b1R Be1 Rc1 Bc4 Rg1 Bd2 Rgd1 Ng5 Rb8 Kh5 h6 Kg6 h5 g8N h4 d5 h3 Nf6 h2 Nd7 h1N Qh2 Bh6 Nf8 Nf2 Qh1 Nh3 Be1 Be5 Ba5 Bh2 Rb1 Bg7 Ra1 Ka8 a7 Rhh4 Rb1 Bh8 Ra1 Kb7 a8Q+ Kc8 Qa7 Rb7 Qb6 Kb8 Qf6 Ka7 Qe5 Ba4 Qd4 Rb3 Rb1 Rf3 Rb4 Ra1 Rb1 Bb3 Rc1 Rd2 Rd1 Rc1 Rdg1 Rdd1
5Rbr/N3k1K1/3n4/3r4/pBbN1P2/2Qr2qb/1qQ3pP/nrR1BrbB w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 g5 b4 e5 f4 d5 c4 a5 b5 a3 c5 d3+ Ke3 d2 b6 a2 b7 g3 c6 a4 c7 g2 Qf3 d1B Qh5+ Ke7 Bd2 g4 Be1 d4+ Kf2 e3+ Kg3 e4 Kh4 d3 Kg5 e2 Kg6 e3 Nf3 g1R Nd4 d2 Bg3 e1Q Qh6 e2 Nc2 Qd4 Bh3 Na6 b8B Nb4 Nca3 Ra5 Bf2 g3 Qg5+ Nf6 Qf5 Bb3 Bf1 d1B Nc4 Qb2 Qc2 Bh3 c8Q Ne4 Nca3 Nd6 Nb5 Bg8 Bg2 Rf1 Nd4 Rd5 Rg1 Qec3 Qc6 e1R Na3 Re3 Bh1 Be2 Nab5 Rd3 Rc1 a1R Na7 Rb1 Be1 Qca3 Q6c3 g2 Bc7 Bg7 Ba5 Bf6 Rd1 Bh4 Kg7 Bf2 Q2d2 Nc2 Bb4 Na1 Qdc2 Be3 Rc1 Rf3 Rf1 Bg1 Rf2 Bf1 Rd2 Be2 Rdd1 Rf1 Rd2 Re3 Rdd1 Bc4 Rd2 Rd3 Re2+ Kd8 Re8+ Kd7 Rf8 Ke7 Q2b3 Qf2 Qcc2 Qb2 Qbc3 Qg3+
1r6/2bk2r1/r1nbn1B1/1Q2BQ1P/r3Bppb/1Pr1qq2/3RN2K/4NbR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 g5 Kg2 d5 h4 f5 c4 a5 e4 d3 h5 g3 c5 f3+ Kh3 g2 c6 f4+ Kh2 d2 c7 d4 b3 g4 e5 f2 e6 d3 e7 a3 Bb2 a2 Qc2 d1R Be5 d2 Qc5 a4 Qb6 a3 Qe3 Ra4 Ne2 g1B+ Kg2 Nh6 Bd4 Rc1 Bf6 d1R Bd4 Nf5 Rh3 Nc6 Rf3 Ba6 c8Q Rc3 Qd3 Ng7 Be3 Ne6 Qc4 Rd7 Qb7 Qb6 Qd3 Rc7 Qh7 Kd7 Bd4 Rg8 Be5 Qe3 Nd2 Bb5 Rc1 a1R Qf7 a2 Qf5 Bh2 Rh3 Bg3 Nf3 Bh4 Kh2 Bc4 Bg2 f1Q Ne1 Qff3 Qb5 Rg7 Nd4 Bf1 Ne2 Rb7 Bh1 Rb8 e8B+ Ke7 Bg6 Kd7 Rc2 Bd6 Rg3 Rb1 Qa6 a1B Rd2 Bb2 Qb6 Rba1 Rg1 Ra6 Qb4 R1a4 Qb5 Ba3 Bg2 Bc5 Bh1 Bb6 Bg2 Bc7 Bh1 Qd5 Be4 Qdd3 Bf7 Qf3 Bg6 Qde3
b1r1rBnN/4nRQR/1b4n1/1BNPp1qn/2P1QRr1/qK4k1/p3r2n/8 w - - 0 1 illegal: No proof kernel
qR1n2K1/B2Q4/4Rqb1/1bpP3p/6n1/Q1B1bnb1/N3PrBk/2nrn1N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 c5 b4 f5+ Kf3 h5 g4 h3 b5 h2 b6 c3 g5 a3 b7 a2 g6 a4 g7 c2 d5 Ke5 Nd2 a3 Qe1 Nf6 g8Q Bh6 Qg5 Rf8 Ne4 Nc6 Qgg3 Ng4 Bd2 c1N Nf6 Bd7 Rb1 a1N Ne4 a2 Rb2 Nc2 Qgf2 a1B Kg2 f3+ Kg3 Be3 Rb3 f4+ Kh3 Ra6 Rc3 Qa8 Kh4 Nd8 Kg5 Bb5 Qh4 f2 Bh3 f1Q Qeg3 Ne1 Rd3 Ra2 Ba5 Rd2 Kg6 Rd1 Kg7 Kf5+ Nc3 f3 b8B f2 Ba7 Bb2 Qg2 Kf4 Qe7 Ba1 Qge4+ Kg3 Bg2 Rf6 Na2 Be5 Qb4 Bd6 Nh3 Rf4 Rg1 h1B Qd7 Kh2 Kg8 Rf6 Qa3 Bg3 Rb3 Rf4 Bc3 Rf7 Ng5 Rf4 Bh3 Be4 Bg2 Bg6 Nh3 Rf5 Bf3 Qg2 Be4 f1N Rb4 Qh1 Bg2 Nd2 Rf1 Rf7 Rf6 Qf1 Re6 Rf2 Ng1 Ndf3 Rb1 Bc6 Rb6 Bb5 Rb8 Ng5 Bh8 Rf5 Bb2 Qf4 Qf7 Qe5 Qb7 Rf2 Qd7 Ngf3 Bc3 Qf6
1BnK3q/3b1kq1/B3N3/nP1Rpnb1/N1r1QR1N/3n2r1/p1n1rP2/Qr6 w - - 0 1 illegal: No possible last move
r3Q3/n5q1/2nQ1pr1/1B1rn3/4rN2/Kb2R2P/PRn1Nkpr/B1b3Nq w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 Kb3 d5 c5 b5 c6 f3 c7 d3 Nh3 Kd4 e5 g3 e6 f2 e7 d2 e8Q f6 Bc4 f1N Na3 g2 Nb1 g1N Nf4 g4 Ne6+ Ke3 Qc2 d4 Bd3 g3 Qf7 Nc6 Qc3 Nge7 Nf4 Qd7 Be2+ d3 Qe8 Na7 Ba3 d1R Qd2+ Kf2 Qg6 Bh6 Ng2 Ne3 Qe4 Nf3 Re1 Ne5 Bc1 Nc2 Ba3 Ne7c6 Kb2 b3 Bd6 b4 Nc3 Qg7 Nf4 Be6 c8N g2 h3 Rg8 Qg6 Rc1 Qd1 d2 Bb5 Bg5 Rb1 Bd5 Qg4 d1R Qd7 Rd2 Re4 Rh1 Re3 Rh2 Qge8 Be6 Nb6 Rd5 Nc4 Bf7 Nd2 Be6 Kc1 b2+ Kd1 b3 Nce2 Bf7 Bb4 Be6 Bc3 Bf7 Qd6 Be6 Rc1 b1Q Bd4 b2 Nf3 Qa1 Nfg1 b1R Kd2 Rb3 Rb1 Rb4 Rb2 Ra4 Kc3 Bh6 Nf3 Qh1 Kb3 Bg5 Bc3 Re4 Bd4 Qh7 Nfg1 Rg6 Rb1 Qg8 Ba1 Qg7 Rb2 Qe7 Rg3 Rd2+ Nd5 Qg7 Rc3 Rdd4 Rg3 Bc1 Re3 N2b4 Ka4 Rd1 Ndf4 Bb3+ Ka3 Rdd4 Qef8 Rd5 Qe8 Nc2+
b3B1QQ/1NK5/R1npN3/pr1Pq1b1/4R1q1/qB6/3QnP1q/nr1q1nk1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 e5 gxh4 b5 f6 Bb2 fxe5 Bc3 e4 Bb4 cxb4 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kc5 Kf4 g4 h5 c4 a5 d4 e5+ Kd5 h3 g5 e3 g6 h4 b6 a3 g7 d6 c5 b3 b7 b2 c6 a2 c7 h2 Bh3 e4 Na3 b1Q Qh5 e2 Bf5 e1Q Qh6+ Qg5 Ne2+ Kf3 Rg1 h1N Rg4 h3 Qh7 h2 Nc3 e3 Na4 e2 Qh4 Qbd1 Rf4+ Kg2 Re4 Kg1 Nb6 Nc6 b8Q Qc3 Qh6 e1Q Na4 Bb7 c8Q Be7 Nc2 Ng3 Nc5 h1Q Rc1 Qgg4 Qd2 a1N Bg6 Qh2 Be8 Nh6 g8B Ne2 Rb1 Nf5 Rb6 Qe3 Ra6 Rh5 Ke6 Bf6 Kd7 Qa3 Kc7 Bg5 Bb3 Nfg3 d5 Nf1 Qd8 Rh4 Qbc8 Rb8 Nd4 Ba8 Nde6 Rb5 Nb7 Rh3 Qb8 Rc3 Qf6 Rc1 Qh8 Rb1 Qd8 Neg3 Qg8 Qe3 Qf6 Ne2 Qfg7 Qeg3 Q7h8 Qe5
1bbN1r2/2RQr1B1/brPQ2q1/kN1KN2p/3nr1pB/3bn3/2b2R1P/1q6 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 e5 g6 e4 Bd3 exd3 Nc3 fxg6 Nb1 g5 Qe2 g4 Qd2 Be7 Qd1 Bf8 Kd2 b5 a4 d5 f4 Kd7 c4 Kc7 f5 Kb6 c5+ Ka5 f6 g5 e4 h5 f7 g3 e5 b3 e6 g4 e7 g2 e8Q b4 Qde1 b2 Na3 b1Q Q1e2 b3 Q8e7 b2 Q7e6 Nf6 Qd1 Nc6 Qee2 Rb8 Nf3 g1R Ng5 Re1 Qf2 Re4 Rf1 Rb6 Ne6 Bd6 f8B Bb8 Qg3 Qd6 Bg7 Rf8 Nd8 Qe6 Nb5 Qf5 Rf2 Qg6 Qd6 Re7 Qb3 Re4 Kd1 d2 Qe3 Re7 Ke2 d1R Qee6 d3+ Ke3 Nd4 c6 d2 Kf4 Rf1 Ke5 d1B Bg5 Be2 Bh4 Re1 Ra2 Qd1 Ra1 b1B Ra2 Bbd3 Rd2 Ka6 a5 Qb1 Rd1 Ng8 Rd2 Nh6 Ra2 Nhf5 Ra1 Rc7 Qed7 Ne3 Ra2 Bf1 Rf7 Rcb7 Raf2 Re2 Na3 Ra7 Nc4 Kb5 a6 Ka4 Na3 Ka5 Nb5 Rc7 a7 Re1 Q7e6 Re7 a8N Bfe2 Na3 Bda6 Nc7 Bed3 Qd7 Ng2+ Kd6 Re4 Kc5 Ne3 Qed6 Ndc2 Ncb5 d4 R7f3 Be2 Rf5 d3 Rf7 d2 Nc4+ Ka4 Be5 d1B Bg7 Bd3 Ne5 Ka5 R2f6 Nc4 Kd5 Nd4 Rf2 B1c2 Qf5 Re6 Rc7 Re7 Qfd7 Ne3+
qB4Qq/1N1RR1N1/q1P3rn/1r2b1P1/p1bQ1rrk/1n6/N1B2q1p/3K1r2 w - - 0 1 illegal: No possible last move, all moves rejected
5K2/4RR1b/r1Pqqb2/nBqppPQ1/bN2b1B1/3Q3N/1k1B2nq/6qr w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 h5 a5 b5 a6 d3 Ke3 Kc4 a7 d5 c3 b3 g5 b2 g6 h3 g7 h4 Qe1 Kb3 Kd4 b4 Kc5 e3 c4 h2 Ne2 h3 Na3 b1Q Ra2 d2 Bg2 d1Q Ng1 e2 Bd2 Nh6 g8B Nf5 Bf3 Qbc1 Bh5 Qd6+ Kb5 Bg7 c5 Nc6 Nc2 Ne3 Bg4 Ng2 Bh7 Na5 Ra3+ Kb2 Qg3 e1Q Qd3 b3 Nb4 Qee6 c6 Ba6+ Kb6 Bb5 Ra4 Qdc2 Ra1 Qf1 Re1 Bf6 Be4 Qc1 Bef3 Ba4 Be2 Rad8 a8Q Qcc5+ Ka6 Rd7 Qg8 Rb7 Qg5 Rb6+ Ka7 Rh7 Nf3 Qff2 Rhf1 h1B Ng1 h2 Nh3 Qg1 Rf3 Ne3 Rf2 Be4 Ka8 h1Q Bf1 Qdd7 Ree2 Ra6+ Kb8 Qhh2 Re1 Qe8+ Kc7 Qg6 Kd8 Ng2 Bfe2 Qh6 Ke8 Qg6+ Kf8 Qed6 Bh5 Qf5 Rf3 Qfe6 Bg4 Bg6 f5 Qed7 Qc4 Ka3 Qh5 Qhg3 Ng5 Rh6 Qh4 Bh7 Re3 Qh3 Bd3 b2 Qe4 b1B Bb5+ Kb2 Qh5 Qhh1 Qg6 Rh2 Nh3 Bd3 Qg5 Bdc2 Qc4 Bd3 Re6 Bdc2 R1e5 Be4 Qd3 Bh8 Rg6 Bf6 Nf4 Rh4 Rg7 Qh3 Re6 Qg3 Re5 Rh1 Rf7 Qh3 Re6 Qhh2 Nh3 Bh8 Ref6 e5+ Re7 Q7e6 Rf7 Bf6
1R1n1Qn1/4b1Nb/pb1N1n2/kn1P1QP1/1r1R1b2/6qB/n5qp/K2R1rB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Kc6 d4 Kb6 Kd2 f5 Kc3 h5 Kb2 c5 e4 f3 g5 c3+ Ka2 h3 e5 f2 d5 a6 b5 h4 e6 a3 e7 h2 e8R f4 Qe1 h3 Qd2 c2 Qd1 f3 Nc3 c4 Nge2 Bf5 Qe1 Be7 Rg1 h1Q Ne4 h2 Rg2 c3 Rg1 Ka5 b6 Bh7 b7 Qg2 Nd4 Qc7 Rf8 Qcg3 Nc5 Nc6 b8Q Nd8 Qb3 Rb8 Rf7 Rb4 Bb5 f1N Rb1 f2 Qb2 Ne3 Qb3 f1N Rf4 Nf5 Nce6 Nd2 Qe5 Nd6 Ng7 N2e4 Ka1 a2 Bd7 Nb5 Rd1 Nef6 Be3 c1B Qf5 c2 Bg1 Bd2 Rh4 c1N Qbf3 Bf4 Rb3 Nh6 Rg4 Rf8 Qf2 Nhg8 Bc8 Nc7 Nb5 Rf7 Nd6 Nb5 Kb2 a1B+ Kb1 Be3 Rgd4 Bf4 Qf3 Bc3 Bd7 Be1 Ka1 Bf2 Rb2 Na2 Qa3+ Ra4 Qc5 Rb4 Qc8 Nc6 Qf8 Nd8 Rf1 Ng4 Qc2 Ra4 Qe4 Be5 Qb1 Na3 Rb8 Nb5 Rd1 Rb4 Be6 Rf3 Qc2 Bf4 R4d2 Ba7 Rd4 N4f6 Bh3 Bb6 Qf5 Rf1
Q4Nr1/7p/1q1Qb2R/Pq1p4/1Pn1nrn1/1r1NB1bR/1N3r2/K1n1nBk1 w - - 0 1 illegal: No proof kernel
1r3nKr/5PB1/qnn2pk1/rrR1RNN1/1p1B1Q1P/1b1qb3/4nQ2/3n3B w - - 0 1 illegal: No proof kernel
bB1rBkb1/5Pnq/bRp1b2n/6N1/N5n1/bqQ1P3/Q5Bp/r3nK1R w - - 0 1 illegal: No proof kernel
2Rq2N1/1B1brp1K/q4P2/6kN/nQ2nq1r/1P5r/1bBQ1rpR/q2q1B2 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 cxd4 g5 bxa4 g6 e5 Bg5 e4 Bd2 e3 Bh3 hxg6 Kf1 exd2 Kg2 g5 Kg3 g4 Bf1 Bc5 Kg2 Bf8 e4 Ke7 Kg3 Kf6 Kf4 d5 c4 g5+ Kg3 a5 h4 a3 f4 a4 c5 a2 f5 d3 c6 a3 h5 d4 h6 Ra7 c7 Bd7 c8B Bg7 h7 Na6 b3 Nc5 Qe1 d1R Qe2 d2 Rh2 d3 Bb7 Na4 Nc3 Rc1 Qe1 d1Q Nh3 d2 Nf4 Rc2 Rc1 a1Q Bd3 Rb2 Bc2 a2 Qf2 Qf1 e5+ Ke7 e6 Kf6 e7 d1Q e8B Qc4 Kg2 g3 Kh3 g4+ Kh4 g2 Kh5 g1R Qd2 Rg3 Ne4+ Ke7 Nd6 Kf6 Nc8 Rd3 Ne7 g3+ Qe2 Rf3 Qd2 g2 Qb4 Qa6 Qd2 Qb1 Qb4 a1Q Qd2 Bc8 Bb5 Bd7 Bbd3 Ra2 Bf1 Qbb2 Qb4 Qe5 Qd2 Nh6 Qb4 Ng4 Qd2 Qed4 Qb4 Nf2 Ng8+ Ke5 Qd2 Ne4 Qb4 Bf6 Kh6 Rh3+ Nh5 Rh4 Bcd3 Rf2 Rc8 Bg5+ Kg7 Bc1 f6 Kf5 Bc2 Kg5 Ne7 Rf8 h8Q Bb2 Kh7 Q4d2 Ng8 Qf4 Qd2 Re8 Qb4 Re6 Qd2 Rd6 Qb4 Rd3 Qd2 Rdh3 Qg7+ Kf5 Qf8 Kg5 Qfb4 Be8 Bc6 Re7 Bb7 Bd7
7b/K2r1prR/Qb2nPn1/B1k1q2b/3q3P/2p5/bR1B1Nq1/NbQ1q1R1 w - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 d5 h5 d6 hxg4 Bg2 e6 Bd5 exd5 Kd2 Kd7 Ke3 Kc6 Kd4 b5 h4 g5 f4 c3 a4 b3 e4 g3 d7 g2 e5 c2 e6 g4 f5 b2 e7 g3 e8Q b4 f6 b3 a5 Bg7 a6 Rh7 a7 Qe7 d8B+ Nd7 Ne2 g1B+ Be3 c1Q Ra2 g2 Qd3 Qe1 Qf5 Bh2 Nec3 g1Q Qg6 Bh8 Qf5 Rg7 Qd3 Qg2 Qf1 Qe5+ Kd3 d4 Kc4 d3 Be7 d2 Bb4 d1Q Bg5 Ne7 Bd2 Ng6 Na3 b1B Rb2 Ba2 Ba5 Ba6+ Kb4 Be2 Ne4 Bh5 Rg1 Rd8 a8R Qa1 Qe7 Nc5 Nc2 Rd7 Nf2 Ne6 Qa6+ Kd5 Kb5 c5 Kb6 c4 Rb8 c3 Rc8 Qad1 Na1 Bf4 Qa3 Bg3 Rc2 b2 Rd8 b1B Qc1 Qg4 Rb2 Kd6 Qb7 Q4e4 Ka7 Kc5 Ra8 Q5d4 Rf8 Bc7 Qa6 Qed5 Re8 Nef8 Re5 Ne6 Rg5 Q5e5 Rf5 Bg4 Rh5 Bf3 Rh6 Bh5 Rh7 Bb6#
3KN2R/1k1np1q1/1qb3N1/1q1Bq2P/3Rq2p/R1Br4/1r1QPb1b/1bn2Q2 w - - 0 1 illegal: No proof kernel
2q2N1k/nqBP2p1/3Q4/1NnQb2K/2p1r1q1/2n1R1rn/PR2bq2/1B3B1n w - - 0 1 illegal: No possible last move, all moves rejected
4q3/2P3Rr/br1n4/kBp1Q1pN/3b1Q1K/1rb1Q2N/q1P1B1r1/1nb3bR w - - 0 1 illegal: Other
3k4/nQpN1n1q/3bbRQn/1qN2pr1/r2rP3/B1rB1N1n/2K4P/3Rr3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 d4 g5 Kd2 b5 e4 f5 a4 b3 a5 b4 d5 b2 a6 b3 d6 c3+ Kd3 f3 a7 f2 Ne2 g3 Bd2 c2 Nec3 c1N+ Kc4 g2 Ne2 g1R Kc3 g4 Be3 g3 Qc2 g2 Na3 b1R Bg5 b2 Qb3 Nd3 Kc2 Qe7 d7+ Kd8 Nf4 Ne5 Bc4 f1R Nb5 Rfe1 Nd4 Nbc6 Qb7 Nf7 Ra6 Ngh6 Nd3 Rg8 Be3 Rg5 Bc1 Rd1 Ne5 Rge1 Bd3 g1N Ndf3 Nh3 Qb6 Qb4 Qg1 Bd6 Qg4 Qa3 Qh5 Qa2 Qg6 Qe6 Rg1 Qe8 Rh1 Qg8 Rf1 Qh7 Rb6 Rb8 a8Q Na7 Qb7 Ra1 Ra6 Ra4 Rh1 Ke7 d8N Be6 Nd7 b1Q+ Kc3 Rg4 Ba3 Qb5 Kc2 Rg5 Rg1 Rb1 Rf1 Rbb4 Rc6 Rd4 Rh1 Bc4 Ne6 Ke8 Nec5 Be6 Qa6 Rb6 Qb7 Kd8 Rf1 Qa6 Rg1 Rb3 Rh1 Qb5 Rb6 Re3 Rd1 Re1 Bb2 Bf8 Qh5 Bd5 Rf6 Bd6 Ba3 Be6 Qg6 Rc3+
B3q1b1/k1pNp1q1/1b4qq/P1Q1b1q1/n1PR2Q1/r4r1R/2N3Q1/n2B1Kb1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 e4 dxe4 g5 h6 f5 g6 Bb2 gxf5 g6 f4 Bf6 Ra4 Bh4 Ra8 Bg5 hxg5 d4 Kd7 c4 Kc6 h4 Kb6 a4 f5 h5 b3 h6 e3 g7 g4 h7 e2 d5 b2 d6 f3 d7 g3 Rh4 g2 Qb3+ Ka7 Qc3 b5 Qf6 f2+ Kd2 e1B+ Ke2 b4 Nc3 b1Q Re4 b3 Qe5 b2 Rd4 f4 Qd5 f3+ Ke3 Qg6 Qf5 b1Q Nd1 Qbb6 Ra2 Nc6 Ra1 Nf6 g8B Nd5+ Kd3 Qde8 d8Q Be6 Rg4 Na5 Be2 f1Q Qd6 f2 Ra3 Nb3 Qc5 Na1 Nf3 g1B Ne3 Ba5 Rd4 Nc3 Ne5 Bg7 Nc2 Qc1 Bd1 Qcg5 Nd7 Be5 Bf7 Q6h6 Qg4 Rf8 h8Q Bd5 Bg6 Bg8 Be4 Rf6 Qg7 f1Q+ Qe2 Qfg2 Qg4 Rf4 Bc6 Qg3+ Kd2 Qg2+ Ke1 Rf3 Qg6 Qg7 Q6e4 Qh2 Qe2 Qhh6 Qeg2 Ka6 Be4 Qbg6 Bc6 Ra7 Ba8 Bb6 Rb3 Rb7 a5 Na4 Ke2 Ka7 Rbd3 Rf5 Rh3 Rf3 Ke1 Rb8 Ke2 Ra3 Kf1 Rd8 Nb8 Rd6 Nd7 Rf6+ Ke1 Rff3 Ke2 Rfe3+ Kf1 Rf3+
b1Kb4/1pr5/B1Q2Rrb/NBQq1Prk/2R1b1p1/2nNr2q/2n1N1P1/3r4 w - - 0 1 illegal: Other
q3nNn1/Qp2Pk2/1bn1r2K/b4bp1/R3R3/2B3P1/nn1b3N/qrQ2R1B w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 h4 Ba3 h3 Bc1 axb6 Qb3 b5 Qf3 b4 Qg2 hxg2 Kf2 f5 Kf3 g5 a4 c5 d4 c3 h4 b3 e4 c2 d5 c4 h5 c3 d6 b2 h6 Kf7 e5 Nf6 a5 Ne8 d7 Nc6 a6 Bb4 h7 Ba5 Na3 b1N a7 Nd2+ Kf2 f3 Nb5 f4 Nc7 Nc4 Ra4 Nb2 Bd2 c1B Ne6 c2 Bc3 Bd2 Nf8 c1N Be2 Rb8 a8Q Na2 Qa7 Ra8 Bf1 Rg8 h8R Rg6 R8h4 Re6 Qd4 Ra6 Qa7 Rb6 Bc4 Rb5 Bd5 Rb3 Ne2 Rb5 Nd4 Rb4 Rf1 Rb3 Kg1 f2+ Kh2 g1B+ Kh3 f3 Kg4 Rb5 Kh5 Rb3 Ra1 f1Q Re4 f2 Nf3 Qa6 Rc1 f1N Nh2 Ne3 Rf1+ Qf6 d8Q Ng4 Qd6 Bgb6 Qc5 Bd7 Rc1 Qd8 Rf1+ Ngf6+ Kh6 Qa8 Qa3 Nc4 Qc1 Rb1 Rd4 Nb2 Bh1 Rd6 Rh4 Bf5 e6+ Kg8 e7 Re6 Be4 Kf7 Bh1 Qc4 Bd4 Nd3 Nf3 Qc3 Re4 Qa1 Nh2 Nb2 Bc3 Ng8+
qB1r4/p2bR2B/6NR/b3Q1np/Pr1Nq1P1/n3R1KQ/2b1b3/q2q2kb w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 Kf2 Ke7 g4 Kd6 b4 Kd5 a4 Ke4 e3 h5 b5 d5 b6 f5 b7 c5 Bg2+ f3 Ba3 d2 Bf1 c4 Qc1 d1B Be2 c3 Bb4 c2 Ba3 f4 Rh2 d4 Rg2 h3 Bf1 h2 Qd2 c1Q Qe2 h1B Rg3 d3 Bg2 d2 Qe1 Nh6 Bh3 Nc6 b8Q Na5 Bf1 Bb4 Ne2 Qc2 Nd4 Bd7 Bc4 Qc8 Qf1 Rd8 Bg8 Nf7 Qh3 Nc4 Qe5+ Kd3 e4 Ba5 Ra2 Rb8 Bd6 Ng5 Rb2 Rb4 Na3 Qa8 Bb8 Qb1 Bh7 Bc2 Qg2 d1Q Qh3 Nd6 Nc4 Nb5 Ra2 Na3 Rb2 Rb6 Rb5 Rb7 Rd5 Rb4 Rd6 Qa1 Rh6 Qdb1 Ne3 Kd2 Ng2 Kd1 Kg1 f2+ Kh2 f1B Nh4 Ke1 Ng6 Be2 Re3 f3 Kg3 f2 Qc7 f1Q e5 Qf5 e6 Qd1 e7 Qfe4 e8R Bc8 Qe5 Bd7 Qh4 Kf1 Re7 Kg1 Qh2+ Kf1 Qh3+ Kg1
r3B1br/p2nKB2/1pN1n2r/1Pr2NQ1/Q1P5/3qq2R/2n1R1B1/b2k1r1n w - - 0 1 illegal: No proof kernel
2Q2bb1/4rq1n/3KBrqk/2n1B1N1/NrRPb2p/2p5/1Rq2Pb1/2QrR3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kg7 Kf4 b5 Ke5 c5 g4 h5 a4 e3 d4 h3 g5 h4 g6 h2 a5 c3 a6 b3 a7 c2 Na3 c4 Qf3 e2 Qc6 e1R+ Ne2 b4 Bb2 c1Q Ra2 c3 Qc4 Qc7+ Kd5 e5 Ng1 e4 Qa6 e3 Ba1 e2 Qb7 b2 Nc4 b1B Na3 b3 Nh3 b2 Ng5 Rd1 Nc4 e1R Bh3 Re7 Be6 Rh6 Re1 Na6 Nb6 Nc5 Na4 Rb8 a8Q Qc2 Qb3 Rb6 Qa3 Rb4 Qc6 Qb7 Kd6 h1B Qe8 Bg2 Qd8 Kf6 g7 Kg6 Qc7 Nf6 g8R+ Kh5 Rg7 Bd7 Qc8 Nh7 Rf7 Qg6 Rf5 Bbe4 Re5 b1Q Rb2 Nd3 Rc5 Qc2 Rc4 Bdc6 Rb1 Be8 Qc1 Nc5 Bb2 Bf7 Ba3 Bg8 Rb2 Qd7+ Ke5 Qde8 Kd6 Qgf7 Qd8 Rf6 Qc8 Rb5 Bb4 Kh6 Ba5 Rb3 Bc7 Rb4 Ke5 Qg6 Bd6 Bf5 Bc7 Qef7 Bb8 Bf1 Kd5 B5d3 Be5 Be4+ Kd6 Bfg2
1b6/1nR3bk/3R1rn1/1r2Q2N/P1Bnq1p1/1NK2b2/1Qq1PBbp/5rnB w - - 0 1 illegal: No proof kernel
2BK2r1/BqN4q/2B3rn/2p1bpQ1/1b1QP3/1rN2k1P/1nqR1b2/5Rqb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kc6 a4 Kd5 h3 Ke4 e3 g5 d5 b5 d6 f5 a5 b3 d7 b2 a6 b4 a7 b3 Na3 b1R Be2 c3 Bb5 g3+ Kg2 c2 Ba6 g4 Ra2 b2 Be2 f3+ Kf1 f2 Kg2 Rh6 Bc4 Nc6 Be6 Qe7 d8Q Bb7 Nc4 Rg6 Qe8 Nh6 Na5 Ne5 Nc6 Nc4 Ra3 Qh7 Rd3 Bb4 Qe7 Rag8 a8B R8g7 Nb8 c5 Na6 Bc6 Ne2 Bd5 Bd2 c1Q Rf1 Qc2 Qg5 Bc6 Nc7 Bb7 Kh1 g2+ Kh2 g1B+ Kg3 Bh2+ Kh4 g3 Bc8 g2 Kh5 Bd5 Bc6 g1B Bc1 Kf3 Rd2 Be5 Kh4 Qd3 Qa4 Qc2 Nc3 Ra1 Kh5 b1Q Kh4 Nb2 Kh5 Ba3 Qd4 Bb4 Kh4 Ra3 Kh5 Rb3 e4 Bc4 Rdd1 Ba6 Bf4 Be2 Rd2 Bd1 Re1 f1Q Bh2 Qf2 Rf1 Be2 Qgd8 Na4 B6b7 Ba3 Qh4 Rbb6 N3d5 Bf6 Bd6 Be5 Ne8 Kg2+ Qg4+ Qg3 Nc3 Bf2 Bc6 Bf3 Bb8 Qb4 Ba7 Nb2 Nc7 Qb5 Be8 Qa6 Ba4 Rb3 Bc6 Bb4 N3d5 Kh2 Nc3 Bh1 Qh4 Qg1 Qhd8 Kg2 Qf6 Rf7 Qh4 Re6 Kg5 Qb7 Qh5 Bg3 Qg6 Kf3 Qgf6 Rg7+ Qg6 Re8 Kf6 Rf8+ Ke6 Be5 Qg5 Re8+ Qe7 Rf8 Kd7 Rf6 Kd8 Rfg6 Qg5 Rg8+
3N1bqq/4QQn1/r2r3N/BP5q/3Qr1b1/1RKp1pR1/q3kPB1/1n1b3b w - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 b5 d4 bxa4 d5 c6 Kd2 cxd5 Ke2 dxe4 Ke1 e3 b4 a5 c4 h5 g4 d5 g5 Kd7 b5 Kd6 g6 Kc5 g7 e5 Rh2 f5 Ra3 e2 Kd2 Kd4 c5 e1R c6 h3 c7 e4 Rc3 a3 Bd3 e3+ Kc2 a4 Rc6 e2 Rg2 h4 Rg5 f4 Kd2 a2 Bf5 a1Q Qc2 a3 Rg3 a2 Rh6 h2 Ba3 h1B Rg2 h3 Rg5 h2 Qc1 Nd7 Qd1 Nb6 Rg2 Ra6 Be6 Nf6 g8Q Nc4+ Kc2+ Nd2 Bh3 Ne8 Rg3 Bg4 c8Q Bhf3 Nc3 h1B Bb4 Ng7 Qce6 Kc4 Na4 Nb1 Rh4 Rh6 Qe7 Rhd6 Ba5 Qd4 Rh8 a1Q Bg2 Qe5 Rh7 Qh5 Nh3 Qa8 Nc5 Qa2+ Kc1 Qd8 Ne6 d4 Qgf7 Qa8 Nd8+ Qad5 Qff6 Qg8 Ng5 Qh8 Ngf7 Qg8 Bd2 Kd3 Qfe6 Rf1 Nh6 e1Q Qd5 Qee5 Qdf7 Re1 Rh8 Re4 Ba5+ Nd2 Qa4 Nb1 Qb4 Ke2 Qc5 Qae6 Kb2 d3+ Qd4 Nf5 Rh7 Qeh8 Rg7 Qc4 Rg5 Ng7 Rc5 Qa4 Rc3 Qa1+ Kb3 Qa2+ Kb4 Kd2 Rb3 Bd1 Kc4+ Ke2 Kb4 f3 Kc4 Na3+ Kc3 Nb1+
3b4/Q1q1n1q1/Q1RB4/p1NPb2R/q1Rr2k1/r5pq/1r2r1P1/1bN1B1nK w - - 0 1 illegal: No possible last move, all moves rejected
R1r2rb1/1K4B1/4N2P/B5Q1/1q1nk1nn/n1pb3q/bRQp2rP/1B3Nb1 w - - 0 1 illegal: Other
1NB4b/3n1n1q/q2nk2P/1Qp1B1R1/Nr1bb2Q/1p2P1R1/1q6/r3bnBK w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 g5 a4 c5 h4 b5 d4 f5 d5 f3+ Kh2 c3 d6+ Ke6 a5 g3+ Kh3 f4 d7 g2 Kh2 f2 h5 g4 a6 f3 a7 c2 Ba3 c1Q Nh3 g1B+ Kg3 b3 Qe1 b4 Bb2 Qf6 d8B Nh6 Ra3 Nd7 Qd1 Bb7 Bd4 b2 Bc7 Be4 Qd3 Bg7 Nc3 b1Q Qb5 Rhb8 Na4 Nf7 h6 Qcb2 Bce5 Bh8 Rc3 b3 Nf4+ Ke7 Nd3 Qa6 Rh5 Ke6 Bh3 f1N+ Kh4 f2 Rg5 Ng3 Nb4 f1N Nc6 Rb6 Nb8 Bf2 Rf3 Be1 Bg1 Bd5 Rc3 Qh7 Rd3 Ne4+ Rg3 Ned6 e3 Be4 Qd3 Rb4 Qb5 Bc3 Rf3 Nd2 Kg3 Bd4 Kh2 Nf1+ Kh1 Ke7 Nb6 g3 Bg4 Nf6 Bc8 Nd7 Na4 Ke6 Nc6 Rb8 a8Q Rb7 Nb8 Ra7 Bh2 g2+ Kg1 Bc2 Qe4 Bb1 Qh4 Bc2 Kf2 g1B+ Kg2 Bf2 Rfg3 Be1 Kh1 Be4+ Rg2 Qb7 Bg1 Ra5 Rg3 Qa6 Rg5 Bg6 R2g3 Bf5 Nb6 Ra1 Na4 Be4+
5K2/3Q2Bq/k2nb1Bp/1Nn1b2P/rRP3q1/6r1/q2Q1pqN/2rQbRr1 w - - 0 1 legal: proof: e4 g5 f4 gxf4 b4 a5 d4 axb4 d5 c6 Qe2 cxd5 Qd2 dxe4 Qd1 e3 Ke2 d5 Kd3 Kd7 Kd4 Kc7 Ke5 Kb6 g4 f5 h4 d4 c4 e2 a4 e1B h5 f3 a5+ Ka6 g5 b5 g6 b3 g7 b2 Ra3 d3 Ra4 f2 Ra1 b4 Bh6 f4 Qd2 f3 Nh3 b3 Be3 h6 Nc3 b1Q Qb2 d2 Qa3 d1R Bd3 f1Q Be4 b2 Bg6 f2 Be8 Qd7 Qb4 Qh7 Rb1 Qg4 Nb5 Qfg2 Bd4 Be6 Rf1 Rc1 Ng5 Nf6 g8Q Bg7 Qf7 Rg8 Qd2 Ra7 Nf3 Ne4+ Qf6 Bh8 Bg6 Nd6 Qg7 Ra8 Nh2 Ra7 Ra1 b1Q Ra4 Qa2 Bb2 Rf8 Rb4 Rf3 Bc3 Rg3 Bd4 Kb7 Qd1 Na6 Bc3 Nc5 a6+ Kb6 Ba1 Ra8 a7 Ka6 Qd2 Bg8 Bd4 e6 Kf6 e5 Ke7 e4 Qf7 e3 Bg7 e2 Qe8 Be6 Kf8 Rb8 Qd1 Rb7 a8Q+ Ra7 Qad8 Ra8 Ba1 Be5 Qg5 Kb6 Bc3 Ra4 Qd7 Ka6 Bb2 B1c3 Qgd2 e1R Qd4 Re4 Ba1 Be1 Q4d2 Ree3 Bd4 Rb3 Ba1 Rbb1 Bc3 Bf4 Bh8 Be5 Bg7 Rcc3 Qb3 Rd1 Rh1 Rcc1 Qdd3 B1c3 Qd5 Rg1 Qbd1 Be1 Q5d2 Rf1 Rg1 Qb7 Rg2 Rh1 Rg1 Qg2 Rf1 Rg1
4nrN1/N1n5/R3b1rp/2kBbKP1/3qB3/3RP1Br/qq1pnQ2/Qq3r2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Kg4 b5 a4 f5+ Kh3 h6 g4 f3 c4 b3 a5 d3 g5 b2 a6 b4 e3 f2 a7 f4 Kg4 b3 Qd2 f3 Bh3 f1Q Ne2 f2 Kf4 Bg7 Qc2 d2 Rg1 d1N Be6 h3 Qd2+ Kc5 Kf5 d5 Nec3 d4 Kg6 h2 Na2 h1R Nb4 d3 Kf5 Nc3 Nd5 Ne2 Ne7 Na6 Nc3 b1Q Bb2 Qa2 Nb5 Qg2 Be5 b2 Bg3 b1Q Rd1 Nf6 Ng8 Ne8 Qb2 Rb8 a8Q Rh3 Na7 f1R+ Qf3 Be5 Qf2 Bb7 Bd5 Nac7 Qc3 Qab2 Ra6 Rh7 Rd2 Rg7 Be4 Q2a2 Qa1 Qd4 Bd5 Rg6 Be4 Kb4 c5 Bd5 c6 Bf7 Bd5 Kc5 Be4 Nb5 c7 Qh2 c8B Nbc7 Be6 Qg2 Ba8 Qgb7 Bc4 Q7b2 Be4 Rd8 Rc2 d2 Rc3 Nf6 Rb3 Rf8 Rd3 Nfe8 Bcd5 Be6+
br6/1RQrb3/1R2P1bq/k3pR2/pNr2N2/3P3B/qq1QnB2/r3bK1n w - - 0 1 illegal: No proof kernel
N3Knr1/1qb2qNb/4p3/QR1nQPkB/1Rq1P2q/r3n2r/2r4p/2BQ4 w - - 0 1 legal: proof: g4 c5 h4 a5 b4 axb4 d4 cxd4 g5 f6 Nc3 fxg5 Nb1 gxh4 Bg5 h3 Bh6 Kf7 Bc1 Ke8 Kd2 Kf7 Kd3 Kf6 Kc4 g5 Kb5 d5 a4 h5 e4 h2 c4 b3 f4 g4 c5 h4 c6 g3 c7 d3 a5 d4 a6 b2 a7 d2 Nf3 g2 Qa4 d1Q Qa5 g1R Ra4 d3 Ra1 h3 Ra4 d2 Ra3 Bf5 c8Q e6 Qc4 Qb3+ Qab4 d1N Ra4 Ne3 Ra1 Nd7 Qe2 Ne7 Nbd2 b1Q Nd4 N7d5 Bg2 Bh7 Qg4 Bd6 Nf5 Nf8 Nc4 Bc7 Ra4 b6 Kc6 b5 Qe1 b4 Qh5 Q1c2 Bf1 Rgg8 Be2 Qbb2 Ng7 b3 Rf1 h1R Qd1 h2 Rb4 Qe5 Rg1 b2 Rg5 b1Q Bg4 Rc8 a8Q Qd3 Nb6 Qc4+ Kb7 Rf1 Qa5 Rf3 Na8 Qec3 Re5 Qe1 f5 Qh4 Qf7+ Kg5 Bh5 Rg3 Qe8 Qf6 Qeb5 Rg2 Qc5 Rc2 Kc6 Rb8 Ra4 Rb3 Rb4 Ng6 Kd7 Ra3 Qd6 Nf8+ Ke8 Qbb3 Ra4 Qb7 Rb4 Nf4 Rc5 Nfd5 Rcb5 Qh3 Bf7 Bg6 Bd2 Qg4 Bc1 Rh3 Qe5 Bh7 Bg6 Qh4 Bh5 Qf7+
K1q1r1n1/6k1/3Bp3/PBbRn1P1/1Qr1N2q/3r1QqN/Np3Rb1/b2q1r2 w - - 0 1 illegal: No possible last move, all moves rejected
3R2b1/KNq2B1r/1qqP1BN1/n3BQ2/6p1/nrrR1rP1/1b4kp/Q4nq1 w - - 0 1 illegal: No possible last move, all moves rejected
R2B2qb/1r2QNBN/2Rp1B2/K2P1n2/P2q1qQ1/2b2r1r/pb1k2n1/2q4b w - - 0 1 illegal: No proof kernel
4n1Br/2R2n2/b2pNQ1q/1nbp2bP/R2NrB1k/r3N3/r1P5/1Kqn1Q2 w - - 0 1 legal: proof: f4 a5 g4 e5 d4 exf4 b4 axb4 d5 h5 d6 hxg4 Na3 cxd6 Nb1 d5 Kd2 Ke7 h4 Kf6 a4 b5 e4 g5 a5 g3 h5 b3 a6 b2 a7 f3 Na3 b1Q Ne2 g4 e5+ Kg5 e6 b4 e7 f2 e8N g2 Nc4 g1R Nb6 b3 Ng3 b2 Ra2 Ba6 Bc4 f1N+ Kc3+ Ne3 Kb3 Nh6 Qd2 Bc5 Rh2 Re1 Rf2 Kh4 Rf6 Nd1 Qf4 Re4 Be3 Qc1 Nc8 b1N Bd3 Nbc3 Bd4 Nb5 Rb6 f5 Qe5 f4 Ne7 f3 Be3 f2 Rb7 f1R Ra4 d6 Ka2 Nd7 Nc7 Qf8 Bf4 Nf6 Ne2 g3 Ne6 g2 Rc7 g1B N2d4 Qd2 Kb1 Rf3 Qf5 Ne8 Qf6+ Kh3 Nef5 Nf7 Ne3 Qh6 Qg6 Kh4 Qf5 Rb8 a8Q Rb7 Qg6 Ra7 Qg2 Bf2 Qf1 Bg3 Be5 Bf4 Qd8+ Bg5 Qf6 Rg4 Bh7 Re4 Nc4 Ra3 Ne3 Bc8 Bf4 Ra5 Rc4 Ba6 Bg8 Ra2 Rb4 R5a3 Ra4 Qc1+
1r4n1/r1kbK2N/bp1R2R1/1Pr4P/2N1Q2b/n1b1nB2/q1B2p1Q/4Nq1n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 b5 cxd4 Be3 e5 Bd2 exf4 Bb4 axb4 Kf2 d5 c4 Kd7 e4 g5 a4 f5 h4 d3 h5 b6 e5 g3+ Kf3 d2 a5 b3 c5 g2 e6+ Kc7 c6 b2 e7 g4+ Kf2 g3+ Kf3 d4 e8B d3 a6 Bg7 a7 Nh6 Rh2 Bc3 Qa4 d1B+ Be2 d2 Rh3 Nd7 Ra3 Ng4 Rb3 Nf2 Qa1 Nh1 Qa6 Nf6 Bg6 Qg8 Qa2 Ba6 Na3 b1N Nc2 Na3 Ne1 Rh7 Qb2 Rb8 a8Q Rg7 Rb4 Qa2 Rd4 Bb3 Rd8 d1N Rd6 Ne3 Rh2 Bg8 Nh3 g1B Ng5 g2 Nh7 Bf2 Rh4 g1R Rg4 Bb3 Bd1 Bh4 Qh2 Be6 Rg3 Kc8 c7 Bd7 Qe4 Rg2 Bc2 Rd2 Bf7 Rd5 Rg6 Rc5 Bd5 Rf7 Rc6 Kb7 c8N Rg7 Re6+ Kc7 Nd6 Re7 Nc4 Rg7 Rd6 Re7 Ke2 f3+ Kd3 f2 Ba8 f4 Bd5 f3 Ba8 Bd2 Kd4 f1Q Bb7 f2 Bd5 Rf7 Ke5 Bc6 Ke6 Bc3 Nd3 Rff8 Ne1 Bd7+ Ke7 Rb7 Qe6 Rfb8 Bf3 Ra7 Qe4 Ng8+
K3R3/1rBQ1QR1/P3B2P/nr4bb/1Np1q2n/r2b1nNb/1qp5/2rk3N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 Kd4 a5 b5 d3 g5 e5 c5 e6 f5 h5 c3 h6 g3+ Kf3 b3 e7 c4 e8Q b4 Nd2 g4+ Ke2 b2 Qe6 b1Q Qg6 c2 Rh3 Kc3 d4 b3 d5 b2 d6 f3+ Ke3 g2 d7 f2 Be2 f1B Rh2 f4+ Ke4 f3 Kd5 g3 Qe4 f2 Qg6 Ne7+ Kc5 Qe8 Kb6 Nbc6 d8N Nf5 Ra4 Qe4 Qg8 Be7 Qe8 Nh4 Bg4 Rh7 Be6 Bd3 Qf7 f1B Nh3 g1N Re2 g2 Nf2 Ngf3 Nh1 g1R Ra1 Bd7 Kb7 Bh3 Nf1 Bg5 Bf4 Be8 Nfg3 Qc1 Bc7 b1R+ Bb6 Kb2 Bc7 Re1 Ra4 Kc3+ Rb4 Qb2 Rg2 Rc1 a6 Re3 Re2 Rc8 Re1 Na5+ Ka7 Rb8 Nc6 Rb5 Ka8 Ne5 Qg4 Kd2 Qgf5 Nef3 Qd7 Be7 Qf7 Bg5 Re2+ Kd1 Rg2 Rd5 Rb8 Rg7 Nb4 Rb5+ Qd5 Rh7 Qd7 Bh5 Re8 Rb7 Qf5 Rf7 Qg6 Rf5 Qgf7 Rfb5 Ne2 Bd8 Rg7 Bg5 Neg3 Qb1 Re7 Qb2 Qc8 Bdf1 Re8 Ra3 Qcd7+ Bd3
R1b1r1qb/B1NK3B/p7/2pPQr2/2bB2NQ/6n1/Rb1nPq1r/3kn2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 g4 h5 b3 f5 g5 a6 g6 f3 g7 c3 Be3 h3 Rh2 h4 Qc2 f2 Qc1 f4 Qd1 f3 Bg2 f1R Qc2 a3 Bh1 f2 Qc1 c2 Rg2 a2 Bg5 h2 Rg4 h3 Bf6 Ne7 g8Q Nd7+ Kd6 Bg7 Rg2 Nf5+ Kc6 Nb6 Qf4 c1B Nc3 Bb2 Qg4 Be6 Qh4 Nc4 Qe8 Nd2 Nb5 Ng3 Nc7 Kc3 b4 Kc2 b5 Bc4 Qe5 Qg8 b6 Re8 b7 Rh6 b8B Bh8 Ba7 Rh5 Rd1 a1N Kd7 Rf5 Nf3 Rg1 Be7 f1Q Bf6 Qf2 Rb1 Rd1 Rg1 Re1 Bg2 h1B Nh2 Rf1 Ng4 h2 Bh3 Bb7 d5 h1N Rg2 Bd4 Rb2+ Kd1 Ra2 Nc2 Rg1 Ba1 Bg2 Bd4 Be4 Ne1 Rg2 Rh5 Bh7 Bb2 Rg1 Qh2 Bg7 Rff5 Rf1 Rh6 Rf3 Qf2 Rb3 Ba8 Rb8 Bb7 Ra8 Rhh5 Qd6 Rh6 Bd4 Rhh5 Qe5 Rh6 Qhf6 Rh2 Qh4 Bc8+
2qr4/1q2RBNP/2Q2p1r/Pn1QQ3/1k2n3/2bR1b2/1prB1nbN/2r3Kb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 h4 g5 c4 d5 h5 b5 h6 d3 a5 b3 e5 b2 e6 b4 e7 d4 e8Q f3 Qc2 d2 Na3 d1N+ Kg3 b1Q Kh2 d3 Bb2 d2 Bc1 b3 Bh3 f2 Ra2 f1B Bg2 Na6 Qg6 Nf2 Qh5 d1B Bb7 Kb4 c5 Bf3 c6 B1g2 c7 Bg7 Rb2 Bc3 Qg6 Nf6 Rc2 N6e4 Qe5 f6 Bd5 Bb7 c8Q Nc7 Qgf5 Nb5 Qc6 Qc8 Re2 Rd8 h7 b2 Nh3 g3+ Kg1 g4 Nf4 Qa2 Bd2 Qb3 Nh5 Ra6 Qce6 Rc6 Rh3 Bh1 Re1 g2 Nc4 Ba8 Ne3 Rc4 Kh2 g1R Ng7 Bfg2 Re2 Rc1 Nf1 g3+ Kg1 Bf3 Qb6 g2 Bf7 Rc7 Qc6 Rc2 Kh2 g1R Re1 Bfg2 Rd3 Bf3 Qfe6 Rg6 Qe6d5 Rh6+ Kg1 Rc1 Qde6 Qd5 Nh2 Qdd7 Qcd5 Rc5 Qec6 Qdb7 Bg5 Bd2 Be3 R5c2 Bf4 Bc3 Bd2 Bhg2 Qce6 Ng5 Qec6 Qbb8 Qcc7 Bf1 Qee6 Bh1 Qdf5 Baf3 Qec6 Qbb7 Re7 Nge4 Qfd5 Ng3 Qb8 Nge4 Qbe5 Bf1g2+
4n1Q1/n1b1kbKp/4N2B/r1rP1p2/6BN/1Q1RP1RN/q4nn1/r1qb3b w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 c5 Kf3 b5 Ke4 f5+ Ke5 c3 d4 c4 a4 h3 g4 b3 d5 h2 a5 b4 a6 b2 g5 c2 a7 b3 g6 f3 g7 c3 Bh6 c1Q Na3 b1R Nc2 b2 Qd4 f2 Qb4 Bd6+ Kd4 Nc6+ Kc4 Bc7 Na3 c2 Bh3 f1N Qc3 Be6 Qb3 Ke7 Nb5 Nf6 g8Q Bf7 Bg4 Ne8 Ra3 Ra1 Nd4 b1B Ndf3 Ne3+ Kd3 Rc8 a8N Ng2 e3 Na7 Kd4 Qd6 Nh3 Qa6 Rg1 h1B Nh4 Ba2 Qb1 Bb3 Qa2 Ba4 Rd3 Bb3 Qb2 Qa2 Qb1 Ba5 Ke5 Rc5 Nc7 Bb6 Ne6 Bc7+ Kd4 Ba4 Qb3 Ra5 Qg7 Rg8 Qh8 Rg6 Qg8 Rf6 Nd8 Rc6 Ne6 Rcc5 Nhg5 Ne1 Rg3 Ng2 Nh3 Qe1 Rd1 c1N Rd2 Nd3 Rd1 Nf2 Rd3 Nd6 Ke5 Qc1 Qb6 Kd7 Kf6 Bd1 Kg7 Ke7 Qb3 Ne8+
3q2Rb/rR2qrP1/2Nbn1q1/2B3pP/QNnN1pK1/5r1b/4b1Q1/r2Bk3 w - - 0 1 illegal: No possible last move
Q3n1Nb/n1n2bPK/2qR1N2/3p4/5pn1/1Q1rqPrq/4q2k/BQ1BR2b w - - 0 1 legal: proof: d4 e5 h4 exd4 c4 g5 b4 gxh4 b5 a6 Nh3 axb5 Ng1 bxc4 Be3 c3 Bd2 Bg7 Bc1 Bf8 a4 Ke7 e4 Ke6 Ke2 Ke5 Kd3 b5 g4 h5 g5 c5 g6 f5 a5 d5 a6 b4 f3 b3 a7 h3 Nd2 Kf4 e5 Kg3 e6 h2 e7 h4 e8Q c4+ Ke2 f4 Qa4 h3 Ra2 d3+ Ke1 b2 Qb4 b1N Qdb3 c2 Ra1 c3 Q3c4 Qd7 Qbb3 Na6 Qbb4 Nc7 Qc6 Bg7 Ra4 Nf6 Ra6 Rg8 Qca4 Bh8 Qab3 Na3 Be2 Nfe8 Rd6 Nab5 Bb2 c1Q+ Bd1 c2 Ba1 Qa3 Qb1 c1Q Q4b3 Qcc6 Kf1 Rb8 a8Q Na7 Q1c2 Qh7 Qcb1 Be6 Ne2+ Kh4 Kf2 Bf7 Re1 h1N+ Kf1 h2 Kg2 Nf2 Ng3 Ng4 Nde4 d2 Nf6 Rg7 Nge4 h1B+ Kg1 Kh3 Ng8 Rb4 Nef6 Rd4 Kf1 Kh2 Ke2 Re4+ Kd3 Re3+ Kd4 Qh3 Bc3 Nf2 Ba1 Rd3+ Ke5 Ng4+ Kf5 Qac5 Kg5 Qe3 Kf5 Rh7 g7 Rh6 Be2 d1Q Kg5 Qdc2 Bd1 Qce2 Kf5 Qhf1 Kg5 Rh3 Kf5 Rg3 Kg5 Ne5+ Kh6 Ng4+ Kh7 Qh3+
R4qKB/1rq2PnB/3RbbNq/1b1nR3/4b1QP/7p/rkn1Qp1n/2N5 w - - 0 1 illegal: No proof kernel
4qnr1/bBQ2P1p/NPB1Qr2/nR3n1b/nq2p3/1b5k/5b2/RK2N1Bq w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 f4 a5 c4 d5 Kc2 a3 b4 d3+ Kd2 a2 b5 e3+ Kc3 e2 Kb2 e1Q g5 Kf5 g6 e5 g7 d4 c5 d2 c6 e4 c7 d3 Qe2 d1N+ Kb3 h3 Qb2 Kg4 f5 a4+ Kc4 d2 f6 h2 f7 a3 Kb3 Nh6 Kc2 Nc3 Nh3 Be6 c8B Nf5 Bd3 Rg8 Nf4 Nd7 Ng2 Qe8 Qb3 Ra6 Bb7 Na4 Nc3 Bc5 Nd5 Ba7 Nb4 Kh3 Rb1 Rd6 b6 a1B Na6 a2 Bb5+ Bc3 Bb2 Nf8 B5c6 d1B+ Kc1 a1N Qa2 Be5 Bd4 Bg3 Rb5 Qb4 Bg1 Bc4 Ne1 Bcb3 Kb1 Rf6 Qc2 Bf2 Qa2 Rh8 g8Q Bh5 Qg5 Rg8 Qc1 Nc2 Qf4 Nce3 Qc7 Nc4 Nc2 Na5 Ne1 Bbd1+ Qb3+ Qc3 Qc4 Bb3 Qe6 Qb4 Ng2 Qd2 Ka1 Bh4 Be3 Qdd8 Rc1 h1Q Bg1 Bf2 Ne1 Qd6 Rb1 Bc2 Ka2 Qd2 Ra1 Bb3+ Kb1 Qb4
3r1r2/2k1P2q/3bQ1nb/1r1KB1N1/1N5n/qp1RR2p/N1b2Pn1/3Qnr1B w - - 0 1 illegal: No proof kernel
2q2rk1/3bP3/1b1N2Np/3PB1QR/p1rb1nr1/1n3Qr1/4B2R/n2q1BKn w - - 0 1 illegal: No possible last move
2N2brk/q3PqRn/bQnq2p1/3B3n/2r1b2B/P3p2R/q4b1N/2Q1R1K1 w - - 0 1 illegal: No proof kernel
Bbq1brn1/4PBq1/1n1RrP2/k7/1N3N2/brBpq1bK/p2Q3R/1r3Q2 w - - 0 1 illegal: No proof kernel
3b2n1/1k2P2p/n3R2Q/1B2Q3/r1bp2rK/q2PR1BN/1Nrq3r/n1nR2q1 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 f5 a4 c5 e4 d5 g4 Kd7 g5 Kc7 e5 b5 e6 h3 a5 h2 a6 c4 g6 b4 g7 b3 a7 f3 Kg3 c2 Nh3 b2 Na3 b1Q Nf4 f2 Qf3 c3 Bc4 f1N+ Kh3 Qb2 Nb1 Be7 Ba2 Qa3 Qh5 Kb7 Bc4 Na6 Qe2 Ne3 Bb2 c1R Bb5 c2 Re1 h1R+ Qh2 Qdd6 Be5 Bd8 e7 Be6 Kh4 d4 d3 Qdb4 Re2 Qd2 Nh3 f4 Nc3 f3 Nd1 f2 Nb2 f1Q Bg3 Bc4 Re1 Qg1 Qe2 Nf6 g8R Rh2 Rg6 Rg8 Qh5 Rg7 Qh6 Ng8 Re6 Rg4+ Kh5 Nd5 R1e3 Ndb4 Rb1 Re1 Rd1 c1N R3e5 Ree2 Re3 Re4 Kg5 Nc2 Kh5 Na1 Kg5 Rb8 Kh5 Rg4 a8Q+ Kc8 Qe4 Ra8 Qe5 Kb7 Rf6 Qda5 Re6 Rc2 Rf1 Qd2 Rd1 Nb8 Be8 Ra4 Bb5 Rg7 Kh4 Na6 Qef6 Rg6 Qe5 Rg4+
1B1K4/1k1rPQpb/1b1Q4/P1n2R2/q5qq/4rRp1/2q2RBb/1rN1nNr1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 e4 Kc6 h4 f5 d4 b5 a4 c3 a5 c2 h5 f3 Kg3 f2 Kf4 b3 Ke5 b2 d5+ Kb7 d6 c5 d7 b4 Ke6 c4 e5 b3 h6 f4 h7 c3 Na3 b1R Nc4 b2 Qd6 f3 Qc5 Ne7 Bg5 c1R Rh3 c2 Rh5 Na6 Nd2 Nf5 Nb3 Bd6 Ra2 Re8+ Be7 Nd4+ Kf7 Ra7 e6 Bh2 h8Q g3 Qc4 Nc5 Bf8 Qh4 Bg2 f1Q d8R Qd1 Bf1 f2 Rf5 Nf3 Ne2 Ne1 Rd3 Bd7 Bh3 f1Q Bd6 Qf3 Qh6 Qfg4 Bg2+ Bc6 Qd2 Be4 Rdf3 Bd3 Bb8 Be4 Rh5 Bh7 Qd6 Qdd4 Nd2 Qde4 Qcd3 Qa4 Qc4 Rd1 Re5 c1B Nf1 Be3 Nc1 Re7+ Kf8 Rc7 Qf4 Ra6 e7 Bf2 Qdf6 Re6 Rf5 Re3 Q4h6 Ra1 Qfg6 b1Q Qf7 Qbc2 Qhe6 Rb1 Qd6 Qab4 Ke8 Qba4+ Kd8 Ned3 Nd2 Rg1 Nf1 Ne1 Rb2+ Nb3 Qc5 Qd1+ Nd3 Re5 Qd6 Bb6 Qe8 Nc5 Nc1 Re3 Rbf2 Qdc2 Qf7 Rd7+
rB2B1K1/qQ2p2r/qNR5/QN1qP3/3R1r2/n1Brbp2/2P3b1/3qbk1n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Nc3 gxf6 Nb1 f5 Ba3 f4 Bb2 Rh7 Bc1 Rh8 Kf2 b5 e4 d5 a4 Kd7 h4 Ke6 h5 Ke5 h6 f5 a5 g3+ Kf3 d3 a6 Kd4 a7 d2 h7 b3 e5 g2 Qe2 d1R Rh4 b4 Qa6 b2 Rh3 b3 Bd3 Nh6 Rh4 Nc6 Qa2 Na5 Bc4 Bb7 Be2 Nc4 Bd2 Ng4 Qa4 Nf2 Ra2 Nh1 Bb4 Bh6 Qc6 Na3 Bb5 Rd3+ Ke2 Qc7 Nd2 b1R Ba4 b2 Bd6 Rf1 Nc4 b1Q Nb6 Qb3 Nf3+ Ke4 Qc5 g1B Qa5 d4 Be8 Be3 Ra1 Qc5 Bb8 Qbd5 Rd1 Bg5 Rh6 Bh4 Rc6 Be1 Rd2 Rg1 Rd1 Rg4 Rd2 Rh4 Rd1 Rf8 h8B Rh7 Bg7 Rf6 Bh6 Rff7 Kf1 Rf8 Kg2 Rf6 Nh2 f3+ Kh3 f2 Kh4 f1Q+ Kh5 f4 Nf3 Rf8 Kg6 Rff7 Ng1 Rf5 Ne2 Kf3 Nc3 Kf2 Rd2+ Qe2 Nb5 Kf1 Nc4 Qb6 Bg5 Qa6 Nb6 Qf2 Bh6 f3 Bf4 Bc8 Bg5 Rf4 Bh4 Rh5 Kg7 Bh3 Bg5 Bg2 Rd1 Qe4 Kg8 Rh7 Rd2 Rc3 Rd1 d3 Bh4 d2 Bg3 Qg1 Bf2 Bc5 Bd4 Rd3 Bc3 Bd4 Rb1 d1Q Rb4 Be3 Rd4 Qf2 Bd6 Rc8 a8Q Qg1 Qb7 Ra8 Rc8 Qc6 Bb8 Qd7 Qd5 Qda7 Qb7 Qh2 Rc7 Qh6 Rcc4 Qd6 Rc6 Qd5+
6nK/2Q1p2N/n2R1q1b/1pNR1qb1/r2QP3/B2Pb1rn/b3Q1nq/3B2k1 w - - 0 1 legal: proof: g4 d5 h4 a5 c4 dxc4 b4 axb4 g5 f6 Qc2 fxg5 Qb3 gxh4 Qd1 h3 f4 Kf7 Kf2 Kf6 Kg3 Kf5 Kh4 Ke4 Kh5 c5 a4 g5 a5 b5 a6 b3 e3 b2 a7 c3 f5 c4 f6 c2 f7 h2 Ra5 c3 Nf3 g4 Rg1 h1Q+ Kg5 h5 Kg6 g3 Nh4 g2 Be2 Qd4 Rf1 g1N Ra4 Be6 Rf3 Ba2 Bc4 Ne2 Bb3 Nf4+ Kg5 Rh7 Ng6 h4 Qe2 h3 Ra6 h2 Rd6 Ng2 Rf5 Rh3 Rc5 Bg7 Nf8 Bh6+ Kg6 Rg3+ Kh7 Qg1 Rf5 h1N Rfd5 Qh2 Qf1 Nf2 d3+ Kf3 e4 Qe5 Qg1 Nh3 Qd4 Qf6 Ng6 Qf4 Nf8 Rg7+ Kh8 Rg3 Nh7 Qh4 Qc4 Kf2 f8Q+ Kg1 Qf3 Qg5 Qc8 Qf5 Nd2 b1Q Qe2 Qa1 Ba3 c1B Bd1 c2+ Qc3 Qb2 Nb3 Bcg5 Qg7 c1B Nc5 Bce3 Qf6 Na6 Qe5 Nc7 Qf6 Rf8 a8Q Re8 Qa5 Ra8 Qb6 Ra4 Qc6 Na6 Qc7 Qbe5 Qg7 Qee6 Qd4 Qef6+
1q1R1B2/q3p1R1/rbK2Q1P/2nQ3p/k1Pb2BN/1r1n2n1/2Q5/br3rNb w - - 0 1 illegal: No proof kernel
r2B1b2/2QPq3/4b1Rq/B1R4q/K2N2nQ/Pn1pp1n1/q5k1/1B1N1nrb w - - 0 1 illegal: No proof kernel
2b2nbR/1NrPK1r1/b2Q1pq1/3B1qrP/1q2p1Nb/1n1Rqk2/R7/1QB5 w - - 0 1 illegal: No proof kernel
n2rqQ2/N2P1Nq1/2P1bpk1/2n1K1b1/3r2RB/1pbrBRQ1/2qbB1q1/8 w - - 0 1 illegal: No possible last move, all moves rejected
2N4r/2bp2QQ/nr2P1K1/2R1b2N/qB1npr1P/1B2nqQ1/b1R5/k4b1r w - - 0 1 illegal: No proof kernel
4Nr2/2Np1p2/2B1n1kn/b7/r2Pb1q1/2P1Q1rN/2rR1KQ1/nRbB1q1b w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 e4 b5 a4 g5 d4 g3 h4 g4 c3 f3 e5 f2+ Ke2 b3 a5 g2 e6 g3 h5 b4 h6 Qg5 a6 Qg4+ Ke3 Bb7 a7 Ke7 h7 Kf6 e7 Kg6 e8N Nh6 Rh2 Na6 Rh5 Nc7 Rh4 Ne6 Nd2 b1N Ra5 b2 Nd6 b3 Qf3 Na3 Ra6 b1R Rh1 b2 N2c4 Rc1 Ne8 b1B Nh3 g1B Qg2 Rc2 Nb6 Bb4 Be2 Ba5 Bd1 Rf8 h8Q Bc6 Qe5 f1Q+ Nf2 Be4 Nd5 Ba2 Ndc7 Bad5 Qf4 Bh2 Nh3 Bc6 Qd2 g2 Qff2 g1R Qg2 Bg3 Rb6 Bh4 Rb1 Bd8 Qdf2 Bg5+ Qf4 Bb7 Rh2 Bbd5 Qg3 Bh1 Rd2 Bde4 Qf2 Rg3+ Qf3 Rb8 a8B Rb4 Bb7 Ra4 Bc6 Qb5 Kf2 Qc4 Qe5 Bf4 Re2 Bc1 Rd2 Qf1+ Ke3 Bf5 Qe4 Rb2 Qd3 Be4 Qe2 Qg2 Qf2 Nc2+ Ke2 Qg1 Qh2 Na1 Qg2 Qf1+ Ke3 Qc4 Kf2 Rc2 Qe3 Qf1+
1n1qNQ2/1P1q2Bn/Bq4p1/3k1pr1/2bnbK1N/2RR3P/b3n1rN/Q3b3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 e4 Kd6 c4 a5 b4 f5 b5 g3 h3 g2 b6 a3 b7 f3 Qc2 f2 Kd3 g6 Bb2 a2 Be2 f1B Bc1 a4 Rh2 a3 Nc3 Rh5 Be3 Rg5 Qd1 Nf6 Bc1 Nh7 Nf3 g1N Kd2 d3 Ke3 d2 Qc2 d1B Qb2 Bc2 e5+ Kc6 e6 d5 c5 d4+ Kf4 d3 e7 d2 e8N d1Q Rg2 Be4 Nh4 Be6 Nb1 Kd5 c6 Bb4 c7 Be1 Ba6 Bc4 c8Q Bg8 Rc2 Ne2+ Ke3 Ra7 Nd2 Ra8 Rb1 a1N Rc3 a2 Nf1 Nb3 Qa1 Nbd4 Bb2 Qb3 Rc1 Qbb6 Rd3 Be6 Nh2 Ra7 Qb1 a1Q Rcc3 Qa4 Qa2 Bg8 Qa1 Qad7 Qc5+ Ke6 Qf8 Kd5 Bb5 Ra2 Ba6 Nc1 Kf4 Be6 Ba3 Rag2 Bb2 Ne2+ Ke3 Ba2 Rb3 Kc6 Bc3 Nf3+ Bd4 Bc4 Rbc3 Qb5 Bg7 Nfd4 Nd6 Kd5 Ne8 Ng3 Kf4 Qb2 Nf1 Qbb6 Nh2 Ne2+
r1N1B2B/nPr2q1K/2bP4/2r1Q1qb/1nRbR1Qr/N4p1p/B1qk2q1/8 w - - 0 1 illegal: No possible last move, all moves rejected
B1N1b1Kb/P1r3Pn/rB2k3/Q2r1n1R/q1Nq4/Q1r5/3p1bRp/bn1B4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 e5 c4 d5 f4 b5 g4 h5 c5 h3 g5 d3+ Ke3 h2 g6+ Ke6 c6 b3 a5 d4+ Kf2 b2 Kg3 d2 c7 d3 a6 b4 Bg2 b3 Ra2 h4+ Kg4 e3 Bf1 e2 Nh3 e1B Rg1 h1Q Be2 e4 Rg2 e3 Ra1 Rh7 Ng1 h3 Na3 b1R Nc4 h2 Nb6 b2 Ra5 Bg7 Rh5 Bf2 Nf3 Qd4 Kg5 Nh6 Ne5 Bd7 c8B Nf5 Qa4 d1R Qa5 Bh8 Bb7 Be8 Nc8 Rc7 g7 Nd7 Nc4 Nf6 a7 Ra1 Bef3 e2 Be3 b1N Bg4 Rb8 Ba8 e1B Be2 Rb3 Bef3 Ba4 Kg6 Bc3 Bg4 Qg1 Be2 Qe4 Bb6 Nh7 Bf3 Rd2 Bd1 Bb2 Bc6 Rc3 Ba8 Kd7 Kf7 Qc6 Kg8 Ke6 Bb7 Qe4 Ba8 Be8 Qb4 Ra6 Qa4 Ne3 Qa5 Ba1 f5+ Kd7 f6 Ke6 f7 Nf5 f8Q Qh4 Ne3 Qa4 Rgg5 Qgg4 Nc4 Qd4 Qa3 Ra2 Qf8 d2 Qa3 Rb2 Rg1 Rb5 Rg2 Rd5
1b3q1Q/p1p5/1P1r4/N1qrBn1Q/P3r3/1b1qB1BR/1n2b1N1/3kqrRK w - - 0 1 illegal: Other
1brrk3/N1qn2KB/3R3B/2NQpPR1/3PQ2n/Q1np4/2br2r1/1rr2n2 w - - 0 1 illegal: No proof kernel
r2N1B2/2Q2nQB/2b2PbN/2n1b3/2R3qK/1QP1rb1p/2p1b1br/2k1r2R w - - 0 1 illegal: No proof kernel
b1rBBb2/3pn1Q1/P2N3K/3N1r2/2nnPb2/p5R1/k3qRn1/nbBQ3n w - - 0 1 illegal: No proof kernel
2N2Nq1/BbkpP2P/4b2p/2b2KnQ/n4Rn1/n2N3n/3r1r1R/Q2B1b1n w - - 0 1 illegal: No proof kernel
1rQ3K1/nbpq3r/1pRn2Rr/2B1r1b1/r2PP1Bk/6N1/Q1N3n1/1n2r1N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 a4 h5 e4 c3 d4 h3 g4 b3 a5 h4 a6 h2 a7 b2 Qd2 b6 Be2 h3 Qc2 Be7 Bd2 Nh6 Bd1 Kh4 g5 f3 g6 f4 g7 f2 g8N f1R Bg4 f3 Ne2 f2 Qd1 c2 Ng3 c1R Qc2 Bb7 Ke6 Nf7 Ra3 Nc6 Ne2 Bg5 Nf6 Rce1 Ng1 Nd6 Bb4 Rf8 Rg3 Qd7+ Kd5 Rfe8 Nh5 Rab8 Na3 b1N a8Q Re7 Rc3 Na7+ Rc6 Re6 Bc5 Ree8 Ne2 Rg1 Qd2 f1N Nhg3 Rg2 Rg1 h1R Nc2 h2 Qa5 Rf2 Qa6 Rf7 Qc4 Rh7 Qa2 Re6 Rg2 Reh6 Ng1 Ne3+ Ke5 Rh5 Rf2 R5h6 Rf6 Ng2 Rg6 Rh5 N1e2 Rhf1 Ng1 h1R Kd5 Rf3 Ke5 Ra3 Kd5 Rbh8 Qc8 Ra4 Ke5 Bh6+ Kf6 Re5 Qd5 Be3 Qf7 Rh6 Kg7 R8h7+ Kg8 Bg5 Qa2 Rh3 Nh5 Rf3 Ng3 Rff7 Qf8 Rfe7 Qf5 Re8+ Qf8 Ra8 Qc8 Rb8
1N1b1bKn/1p3rn1/2q4r/1R3B2/bP1N1nBk/Q2nn1n1/2p2Pb1/R3Q1Q1 w - - 0 1 legal: proof: h4 d5 e4 f5 c4 fxe4 b3 dxc4 h5 a5 h6 a4 Rh5 a3 Bb2 axb2 Rh3 gxh6 Rh2 h5 Rh1 h4 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 Kg5 g4 c5 a4 h3 d4 h4 b4 c3 d5 e3 a5 h2 d6 c2 d7 c1B Ke6 c4 Kf7 e5 a6 e2 a7 e1N Qf3 c3 Qc6 e4 Bg2 c2 Bh3 e3 Bf1 e2 Qa4 h3 Qa3 Nc6 Qd3 Rh6 Ra2 Nd4 Qf5+ Kh4 g5 Qc7 g6 Ne7 d8Q Ng2 g7 e1N g8B Qc6 Ra1 Nd3 Qe6 Nf5 Be2 Ngf4 Nc3 b1N Nb5 Nd2 Bh7 Ng7 Nd4 Nc4 Bg4 Bd7 Qe1 Ne3 Bhf5 Rc8 a8Q Rc7 Qdb8 Neg6 Nge2 Nh8+ Kg8 Be8 Qa5 Rf7 Qa3 Bd2 Rg1 h1B Qd6 h2 Qg6 Bg2 Rh1 Qc4 Nc6 Bc3 Nb8 Ba4 Rg1 Bf6 Nd4 Bd8 Rh1 Bf1 Rg1 h1N Rg3 Bg2 Rf3 Ned5 Re3 Ng3 Re5 Ne3 Rb5 Rh5 Qe6 Qc5 Qg1 Rh6 Qe5 Qc6 Qe4 Nef1 Qe1 Ne3
4b1b1/rBRb1N2/2np2b1/R5Rn/1B2b1bk/prP2Qb1/1N1QP3/3bKq2 w - - 0 1 illegal: No possible last move
1q1n3R/b1n1npnR/2nk1BBQ/1nr2Q2/N3r1p1/3n2P1/1K1P1N2/1n3b1B w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 h4 Ba3 h3 Bc1 axb6 Qb3 b5 Qf3 b4 Qg2 hxg2 Kd1 Ke7 Kc2 g5 h4 c5 a4 b5 e4 f3 e5 c3 e6 f2 a5 b3+ Kd1 b4 a6 c2+ Ke2 c4 h5 g4 a7 b2 h6 b3 h7 c3 Nh3 g1N+ Ke3 Nf3 Ba6 f1N+ Ke4 Ne3 Ng1 Nd5 Kd3 Kd6 e7 Nh4 e8B Nc6 Rh2 Nge7 Bd7 Nhf5 Bb7 Ng7 Ra2 Nc7 Na3 b1N Kc4 b2 Kb3 Qe8 Rh3 Nd8 Bh1 Ba6 Bf5 Rc8 a8Q Bf1 Bg6 Rg8 Ra1 Qb5+ Ka2 Qb4 h8Q Qb8 Qh4 Rh8 Qg2 Rh5 Qf3 Re5 Qg5 Re4 Rh5 Na6 Rh3 Rc5 Rh8 Nc7 Nc4+ Ke6 Bh7 Na3 Nh3 b1N Bg6 Nab5 Bb2 Kd7 Nb6+ Kd6 Kb3 c1N+ Kc2 Nd3 Nf2 Ne5 Qff5 N5c6 Qh6 Rcc4 Kb3 c2 Bf6 c1N+ Kb2 Rc3 Ra8 Rc5 Na4 Nd3+ Ka1 Ng8 Rh7 Be7 Bb2 Bg5 Bf6 Be3 Ka2 Nge7 Ka1 Qb6 Rc8 Qb8 Ka2 Nb7 Rch8 Nbd8 Ka1 Rd5 Ka2 Ba7 Ka1 Rc5 Ka2 Nc1+ Kb2 Nd3+
2k3b1/Br3BN1/1nr2bB1/Q2rpN2/np2R1P1/Q2rbR1K/b2qnn1P/8 w - - 0 1 illegal: No proof kernel
nN1RQ3/KB3qN1/1Bnnn2r/2p1Nr2/p1bb4/6Pr/r3RP2/bk3bQ1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc6 b4 Kd5 d4 a5 b5 h5 g3 e5 b6 c5 b7 a3 Bd2 a2 Qc2 h3 Qc1 c3 Be2 c2 Qe1 c1N Bf3 Kc4 d5 Kb3 d6 Kb2 d7 h4 Bg4 h2 Be2 h3 Bb5 Nf6 Bf1 Qe7 d8N Bg7 Ba6 Nb3 Nf3 Nc6 b8Q Rh6 Qf1 Nd7 Nc3 Qf7 Ne6 Nb6 Bc4 Ba6 Rc1 a1B Be1 Nd2 Bd5 Bc4 Rg1 h1R Nf4 h2 Qc7 a4 Qa7 Rf8 Na2 Na8 Rc2+ Kb1 Qe7 Bf6 Nb4 Bh8 Qd3 Bd4+ Ke2 e3 Na6 Ne4 Qe8 Nd6 Nb8 e4 Ne6 Ba1 Rf1 Bhd4 Ne5 Rh3 Rg1 Rh6 Ng7 Rh3 Kf1 e2+ Kg2 e3 Ba5+ e1R Qf1 e2 Bb6 Qg8 Ra2 Rf5 Rd2 Qf7 Rd3 Na5 Bb7 Rc1 Qd1 e1N+ Kf1 Ng2 Ke2 Rh6 Re1 Nf4+ Kf3 Nc6 Re2 Rh3 Qg1 Rh6 Rd1 Rh3 Ree1 Bf1 Re2 Rh6 Rd3 Rc2 Rdd2 Ra2 Rd3 Nc8 Ke4 Ne6 Kd5 Rh3 Kc4 Rh6 Kb5 Nd6+ Ka6 Rh3 Qg2 Rg1 Nbd7 h1B Nb8 Rh6 Qh2 Bd5 Qh1 Rg2 Qg1 Rgh2 Rdd2 R2h3 Rd3 Na5 Ka7 Bc4 Nbc6 Nc8+ Kb8 Bdb2 Rd8 Nd6 Ka7 Bd4 Nb8 Nc6+
nn3RQ1/k3N1pK/2b5/2Nb1n2/r2P1rb1/1r1Pr2q/3b1Qp1/1nB1NBR1 w - - 0 1 illegal: Other
4R2r/p1nB1pb1/1r2n1PN/2K2B2/2bR2nk/3QQ3/rr1NbP2/n1N1b2q w - - 0 1 legal: proof: d4 b5 Kd2 c5 h4 cxd4 a4 bxa4 h5 e5 h6 e4 Na3 e3+ Kd3 gxh6 Nb1 h5 Bd2 exd2 Qc1 h4 Qe1 Bh6 Qd1 Bf8 Kc4 Ke7 b4 Kf6 g4 Kg5 e4 d5+ Kb5 h5 c4 h3 c5 a3 e5 h4 c6 d3 e6 d4 e7 h2 e8B a2 c7 h3 Qe2 d1B Kc4 d2 b5 d3 b6 Kh4 b7 Nf6 g5 Nc6 b8N Be6+ Kb5 Nd4+ Ka5 Qd5+ Bb5 Ng4 c8Q Bg7 Qe3 Be2 Kb4 d1N g6 d2 Ba6 Nc3 Nc6 d1N Na5 Rb8+ Bb5 Rb6 Qd3 Nde3 Nb3 Qg2 Qc5 Bc4 N1d2 Ne6 Re1 a1B Nd4 Ncd5+ Ka3 Qe4 Bd7 Ndc7 Rd1 Bc3 Nf5+ Kh5 Nh6+ Kh4 Ka4 Nc2 Qce3 Na1 Bg2 Qa8 Be4 Rb2 Bf5 Qd5 Nb3 Be1 Nc1 Rhb8 Ka3 R8b6 Nf3+ Kh5 Rf1 h1R Nd2 h2 Rg1 Kh4 Rg3 Rf1 Rf3 h1R Rf4 Rh2 Rd4 Qh1 Re4 Nd8 Re8 Rg1 Bb5 Ra2+ Kb4 Rg3 Kc5 Rf3 Bc6 Nde6+ Kd6 Rbb2 Ba4 Rf4 Bd7 Re4 Kc6 Re5+ Kd6 Reb5 Qb3 Ne5 Nb1 Bed3 Ng4 Be2 Rd4 Kh5 Nd2 Rh4 Qbd3 Rh3 Nh6 Ng4 Ng8 Rb6+ Bc6 Nf4 Kc5 Kg5 Bcd7 Rh8 Nh6 Kh5 Qc2 Kh4 Qcd3 Nfe6+
n5qQ/b4B2/r2n1B2/4pN1R/BppQ2qK/2br1P1R/NP1q2bn/4kr2 w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 c4 gxh4 a5 d5 a6 dxc4 Nf3 Nxa6 Ng1 Nb4 Qb3 Na2 Qc2 Nf6 Qd1 Ng8 d4 Kf7 g4 Ke6 d5+ Ke5 d6 h5 d7 a5 f3 b5 Kf2 c5 g5 b4 g6 h3 Kg3 a4 g7 h4+ Kg4 a3 Bg5 h2 Nd2 Kd4 Qc2 e5 Bh6 h3 Kh5 e3 Qb1 e2 Qd1 Kd3 Kg4 c3 Rc1 c2 Kg3 c4 Be3 Nh6 g8B Nf7 Bc5 Ra6 Bg2 e1B+ Kg4 Nc3 Rb1 c1Q Qa4 a2 Nb3 a1R Be7 Qd2 Bg5 Nd6 Rc1 Nd5 Be3 Nb6 Bf4 Na8 Ne2 Bh6 Bf7 Qg8+ Bg5 Rh7 Rg1 h1N Nc3 h2 Na2 Ke2 Bh3 Ng3 Kh4 h1Q d8Q Nf1+ Rg3 Qg2 Bf6 Nh2 Qae8 Bf5 Bg4 Be3+ Bgh5 Kf1 Nd4 Bh3 Nf5 Ba7 Qb6 Qg1 Qd4 Bg2 Qd8 Rg7 Be8 Rc7 Bhf7 Rc5 Ba4 Rd5 Qe4 Rd3 Qd4 Qd1 Qf8 Bc3 Rh3 Ke1 Rc2 Qd2 Qg7 Bh1 Qh6 Q1g7 Qh8 Bg2 Rc1+ Ke2 Rg1 Rf1 Rh1 Ke1 Kh5 Ng4 Rg3 Bb6 Rhh3 Bc5 Kh4 Nh2 Rg5 Ba7 Rh5 Qg4+
n1K1k1r1/1n2B3/1b1rqp2/bp2PB2/Q1r1R1N1/1Q2nRpb/1Q2P3/q5qN w - - 0 1 illegal: Other
3q2B1/b2Rpq2/rrrnkN1P/K1B2p1b/p2q1bQ1/N2n4/1QR1P2n/R7 w - - 0 1 illegal: No possible last move
3B2R1/3P1pKQ/2NR1P1Q/2r5/1n2Bb2/2pp1n1r/nqqq1b1r/3N1bBk w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 g5 e5 g6 hxg6 d5 g5 Qd2 g4 Qd4 exd4 Kd2 Ke7 e4 Kf6 f4 c5 h4 g5 a4 b5 f5 Ke5 h5 Kf4 d6 Kg3 h6 b3 f6 b4 a5 b2 e5 b3 e6 Ne7 h7 Nec6 e7 Bh6 e8Q Na6 Na3 b1Q Nf3 b2 Bd3 Kg2 Rd1 g3 Qe3 Bh3 Nb5 g4 Nc3 Ne5 Qg5 Rc8 Be4 Nb4 Ke2 Qa2 Be3 b1Q+ Rd2 Qc7 d7 Kh1 Qh4 Bg5 a6 Bh6 a7 g2 a8Q g1R Qh5 Rg3 Bg1 Qd1+ Kf2 Qb2 Qh4 Qdc1 Nd1 d3 Ra6 Qc6 Nd4+ Nf3 Qa7 Qa4 Rd6 Rc7 Re2 Qcd2 Qa8 Qab3 Qg8 Rc6 Qhg5 Bf1 Q8g6 c3 Qg8 c4 Q5g7 Rc5 Nc6 c2 Qg5 Qdc3 Ke3 c1N Kf4 Bg7 Rg2 Bh6 Qg6 Nca2 Qf5 Rf8 h8B Qb3c2 Bg7 Rh8 Bf8 Rh7 Be7 Q3d2+ Be3 c3 Bd8 Bf8 Qg7 Rh2 Qfh7 Rgh3 Qg5 g3 Kg4 Nh4 Kh5 Bh6 Bd4 Nd5 Qgg7 Bf4 Qg5 Ndb4 Kh6 Qa3 Re2+ g2 Bg1 Qac1 Re3 Q1b2 Rg3 Be3 Qf4 Bf2 Rg8 Nf3+ Kg7 Be3 Bf2 g1B Qfh6 Bf4 Bd4 Bf2 Be3 B2g3 Bg1 Bf2
4q1Bn/P4rN1/1bpNr1qq/pK3r2/P3B3/2k5/bpb2Q2/1nRR1QRn w - - 0 1 illegal: Other
bB1r2B1/2N3q1/1nKRP1p1/2prbpR1/3kNQ1P/R1b2n2/Q3br1b/2n5 w - - 0 1 illegal: No possible last move
q1r2n2/1kB3r1/1Pb1n2b/KQn1p2N/R2p1nbn/2Q2B1Q/1r1p2P1/2N3R1 w - - 0 1 illegal: No proof kernel
2Bb2N1/1n2Bppr/qp2b2R/1n1NbRK1/2r1bn2/1b1kPP2/6Br/4Q1Q1 w - - 0 1 legal: proof: d4 e5 g4 exd4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 a4 Ke7 h4 Kf6 a5 Ke5 h5 Ke4 e3 c5 Ke2 d5 a6 g3 h6 d3+ Ke1 d2+ Ke2 b6 h7 c4 a7 d4 Qb3 d1B+ Ke1 c2 Kd2 d3 Be2 g2 Nh3 g1B Ra3 c3+ Ke1 d2+ Kf1 Nd7 Kg2 Nh6 Kg3 Bh2+ Kg2 Nf5 Qb4+ Nd4 Nf4 Nc5 Nd5 Be7 Ra5 Be6 Bg4 Qc8 Kh3 Bd8 Ba3 c1R Ne7 c2 Kh4 Nb7 Nc3+ Kd3 Kg5 Be5 Nd5 Nb5 Rh6 Bf3 Qb1 Rh1 Qg1 d1B Bc5 Rb8 a8B c1N Bh3 Be4 f3 Be2 Bg2 Bd1 Ba3 Bb3 Bd6 Rf8 h8Q Ne2 Qe1 Nf4 Ba3 Nc5 Bb7 Rh2 Qh7 Ra8 Qg6 Rh8 Bb4 Ra7 Ba6 Qa8 Bc8 Rh7 Ba3 Nb7 Bc5 Bdc7 Ng8 Bd8+ Be7 Ra6 Qg1 Ra7 Qh5 Ra6 Qh4 Qa7 Qhe1 Qa8 Ra2 Ra4 Rc2 Qa6 Rc6 B6f5 Rcf6 Be6 Rf5 Rc4
4n1k1/2PN2B1/bbqpn2K/br4pQ/1P1R2bb/6pr/B2rNB2/nQ5R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 a5 c4 f5 h4 Kf7 e4 g3 b3 d6 e5 f3 c5 a3 h5 a2 h6 f2 h7 d3 Ke3 d2 Kf4 a4 c6 a3 c7 Qd7 Kg5 f4 Bb5 f1N Qe2 d1R Qd2 f3 Bd3 f2 Nh3 Nc6 Kh5 Ra5 Be2 Rb5 Bf3 Nd8 Qd5+ Ne6 Qd3 Be7 Nf4 Ne3 Nc3 f1B Ne4 Nc2 Nc5 Bh4 Ne2 Rd2 Bd5 Qc6 Nd7 Ba6 Bb2 Bh3 Rad1 a1B Bd4 a2 Bf2 Bd4 b4 a1B Qe4 Bb6 Ba2 Bad4 Qd3 Na1 Qb1 Rc2 Rd2 Ba5 Rd3 Bdb6 Rd4 Ke7 Kg6 Rd2 Kh5 Nf6+ Kg6 Rf8 h8B Ne8 Kh7 g5 Kh6 Kf7 Bg7 Kg8 Qf1 Rf7 Qb1 Nf8 e6 Bg4 e7 Ne6 Be3 Rf1 Bf2 Rfd1 Nf8 Nf6 e8Q Rf1 Qh5 Ne8 Nd7 Rg1 Nf8 Rg2 Nd7 Rh2 Qf1 Rh3 Qc1 Nf6 Qb1 Ne8
3NKNnq/3rbbQR/1Q6/Bn1Bbqq1/8/Q1R1pppP/1P4k1/1b1br3 w - - 0 1 illegal: No proof kernel
2bB4/1b4B1/1rn2qR1/1QK5/1P2p2P/r2BR1p1/Np1Nb1kn/b1Qqb2n w - - 0 1 illegal: No proof kernel
bb5r/B3n3/3r1b2/nK1R1np1/Q2q1P1p/P1n1R1N1/B1p2Bn1/kqQ1N3 w - - 0 1 illegal: No possible last move
1b1B2N1/3rR3/1nQ2Nb1/kn2qqpp/1qPBR3/qPp1nQ2/1q2r1B1/6K1 w - - 0 1 illegal: No proof kernel
2b1r3/1q1r4/bb2NK1p/BR3b1P/nbpQ3n/1kp3P1/RN1Q1n2/B3Bq2 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 d5 Bd3 dxc4 Be2 g6 Bg4 fxe4 f5 Ra7 f6 Ra8 Bf5 gxf5 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Ke3 Kd5 d4 b5 a4 c5 h4 c3 g3 Kc4 a5 f4+ Ke2 f3+ Ke3 f2 h5 f1B f7 h6 d5 b3 a6 b4 a7 b2 d6 b3 d7 Nf6 Qd2 Rh7 Nf3 Na6 Ra2 Qb6 d8B Qb7 Kf2 e3+ Ke1 e4 Rh2 e2 Kf2 e1B+ Ke3 Ng4+ Kf4 e3 Ra5 e2 Rb5 Bf2 Ba5 e1N Ng5 Nf3 Ne6 Nh4 Rg2 Rb8 a8Q Bg1 Re2 Nf2 Ke5 Be7 f8B Bd6+ Kf6 Rd7 Qa7 Ra8 Bc7 Rb8 Ra5 Kb4 Na3 b1B Bb6 b2 Nc4 Bf5 Rb5+ Ka4 Bc7 b1Q Bb2 Qd3 Ba1 Qdf3 Ra5+ Kb3 Nb2 Qh1 Re5 Bb5 Bd8 c4 Qad4 Bb4 Ra2 Nc5 Ba5 Na4 Bc5 Ba6 Bcb6 Qhg2 Rb5 Qf1 Q4d3 Nd1 Bf2 Ra8 Be1 Bb6 Qd6 Nf2 Q6d4 Ra7 Nd3 Re7 Nb2 Re8 Qc5 Qc6 Qce3 Rd7 Qed4 Qb7
2N1nr2/5rrb/1P1NBP1q/QQ1q3p/2R1pb1K/r2b4/2pR1rNn/5kB1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 f4 Kd7 Kf2 Kc6 g4 Kc5 b4+ Kd4 f5 h5 b5 c5 f6 e5 g5 a5 d3 e3+ Kf3 e2 b6 e1R g6 c3 g7 c4 Bf4 c2 Rh2 c1Q Rha2 a3 Rb2 h3 Kg3 h2 Qc2 h1B Qd1 a4 Qb3 c3 Raa2 c2 Kh4 Nh6 g8N Qd5 Bh2 Ke3 d4+ Kf2 Ne7 Ng4 Ng6 Rg8 Bd3 Be4 Bf1 Rg7 Ne2 Na6 Bh3 Rf1 Qb5 Bd3 Nef4 e4 Ng2 Bf5 Ne7 Bh7 Nc3 Qh6 Ra1 a2 Rb4 a3 Rd1 a1R Rc4 a2 Nc8 Bd6 Qa5 Bb8 Nb5 Nc7 Nbd6 Ne8 Bg1+ Ke2 Qb5 Nh2 Be6 Rf2 Rd2+ Kf1 Qa5 Rd1 Qb5 a1R Qa5 Qb5 d5 Ra3 Nf5 Raa7 d6 Nc7 d7 Be2 Rd3 Rb7 Rg3 Rd6 Rh3 Qd5 Rd3 Ra7 Rd2 Bd3 d8Q Ra8 Qe8 Rdd7 Na7 Rdf7 Qc6 Nb5 Qc5 Bf4 Nd6 Raf8 Nac8 Nc7 Qcb5 Ne8
N1K4B/1Q1qq1B1/qp1kqR2/2N5/1Pn1rR1r/2b1P2R/3b1npp/1b1Q2q1 w - - 0 1 illegal: No possible last move, all moves rejected
Rrrbr1N1/2Q2QN1/P5p1/r1q5/R3q1k1/pPR1b1r1/1p4B1/nb1K1nB1 w - - 0 1 illegal: No proof kernel
2Q1bKr1/RnBB2p1/1Q1p1PBr/pN6/r5rb/1nqq4/rP4k1/R4nN1 w - - 0 1 illegal: No possible last move, all moves rejected
n2qr3/3K1Pbb/4Rqn1/1QPk2NB/p2p2bq/brR1B1bN/2N2p2/3Q4 w - - 0 1 illegal: No proof kernel
nQ4Br/1b1N1p2/3qB3/1p6/2pKbP2/NQQP1k2/1bb1r1nR/r1Rq1b2 w - - 0 1 legal: proof: h4 d5 c4 dxc4 b4 a5 h5 axb4 h6 e5 d3 e4 Kd2 e3+ Kc2 gxh6 Bb2 h5 Bc3 h4 Bd2 exd2 f4 Ke7 e4 Kf6 a4 h5 g4 b5 a5 c5 a6 b3+ Kc3 b2 a7 h3 Qc2 d1Q Qa4 h2 Qa6+ Qd6 Be2 h4 Nh3 Nd7 Qb7 Nb6 Qc6 Ne7 Ng5 h3 Qd5 Nf5 Rf1 h1B Nf3 h2 Ra2 Ne3 Ne5 Bg2 Na3 b1B Nd7+ Kg6 g5 h1B e5 Kf5 g6 Bb7 g7 Re8 g8B Bg7 a8Q Bc2 Qb8 Na8 Rg1 Bf1 Qc7 Be4 Bg4+ Kg6 Bh3+ Kh5 Be6 Ng2 Qa5 Kh4 Qb4 Kg3 Qd4 Qg4 Qb3 Qd1 Rh1 Re7 Ra1 Re8 Rc1 Kf3 Rh2 Re7 Bf5 Bf6 e6 Re8 e7 Be5 Be6 Bg7 Kb2 c3+ Ka1 c4 Ka2 Rc8 e8Q Rc5 Qc8 Re5 Qc7 Bec6 Qc8 Re2 Qb8 Be4 Ka1 Bb1 Qf6 c2 Kb2 Qd2 Re1 Qd1 Kc3 c1R+ Qc2 Qc6 Kd4 Qa6 Qa2 Bc2 Qb3 Ra1 Qfe5 Qd2 Rc1 Qd1 Kc5 Bf6 Qec3 Be5 Qa5 Bb2 Qac3 Qc6+ Kd4 Qd6+
Qqq1QrnN/2R1P3/p3r1r1/1p3Q1r/2P1bK1B/r4B1p/1qn1R3/b4Nk1 w - - 0 1 illegal: No proof kernel
n4qN1/Nk1p1rqb/6pq/2n1QnN1/1bP1p3/3n3B/P1KRQrnB/6R1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 b5 f4 e5 c4 b3 h4 d3 f5 g3 h5 b4 h6 b2 f6 e3+ Ke1 d2+ Ke2 g2 Kd3 b3 h7 e2 Qc2 e1N+ Kc3 d1N+ Kd2 Nh6 Qc3 Nf2 Qb4 Nf5 Rh6 Nfd3 Na3 b1Q Kc3 b2 Rg6 Na6 Be3 Nac5 Kd2 Bb7 Nh3 g1Q Bh6 Qc1+ Ke2 b1N Nb5 Ng2 Qd2 Be4 Na7 Na3 Ng5 Nb5 f7+ Ke7 Qd1 Nc7 Rd6 Qb8 Rd4 Kd8 Qd2 Bd6 f8N Rg8 Ng6 Rf8 Qd1 Rf7 Ne7 Qb4 Qc2 Rb8 Rd5 Na8 h8Q+ Kc7 Ng8 Kb7 Rd4 Qf4 Kd1 Rbf8 Qe2 Qb6 Kc2 Qd8 Nf3 Qfh4 Be3 Qh6 Bf4 Nge3+ Kb1 Nh4 Nc8 Nc1+ Kb2 Na6 Rd2 Nd3+ Kb1 Rf5 Ng5 R8f7 Rd1 Bb4 Nf3 Qf8 Bh2 Nac5 Bh3 Qg3 Rd2 Neg2 Kc2 Qgg6 Ng5 Rf2 Kb1 Qf6 Kc2 Bh7 Na7 e4 Rad1 g6 Rg1 Nf5 Qg7 Qd4 Qf6 Qa1 Qe6 Qf6 Qe5 Qf6g7
2N5/1n1p2n1/P1K2nn1/Q3b1P1/2RpR3/rbr1qBk1/nB1Nq1qp/1Q1N4 w - - 0 1 illegal: Other
1k1q1B2/q1p2K2/rpRrqP2/4N2N/1b1N1QQb/Pb3qRB/q3n2p/1n6 w - - 0 1 illegal: No possible last move, all moves rejected
4q2b/1p1pn1Nb/2nrRrb1/1Rq3B1/4pPq1/3P2N1/1qQqBk2/Q2K2N1 w - - 0 1 illegal: Other
1bb4r/P1B2n2/2QqR2n/3nQ2p/R2p1bRb/1KP1N3/1p2q1Nk/2bB1r2 w - - 0 1 illegal: No proof kernel
8/PN1pnpbr/R2BR1n1/2N1B1R1/1Qb4k/Q1q3bp/1b5P/2qrb1rK w - - 0 1 illegal: No proof kernel
2b1B1Q1/pnrQ1b2/1BnRPrB1/3Rb3/3Pn3/b2p1Kb1/1q1Np1N1/k3q3 w - - 0 1 illegal: No proof kernel
r2Q1n2/pBr2qpr/2b4B/1nb5/1r3R2/K1Q1Ppkq/3n1NP1/R1B1Nr2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 a5 Qxh4+ Kd2 Qh2 a6 bxa6 Ke1 a5 Qd2 a4 Qd3 Bc5 Qd1 Bf8 Kd2 Ke7 c4 Kf6 Kc2 Kg5 b4 Kh4 Kb2 f5 c5 d5 c6 h5 c7 a3+ Kb3 a2 b5 d3 b6 d2 b7 d4 e3 d3 Nf3+ Kg3 Na3 h4 Nb1 h3 Ka4 Nf6 Nd4 f3 Nb5 f4 Bb2 f2 N1a3 f3 Qb1 d1N Nc3 d2 Qc2 Bd7+ Ncb5 Rh7 c8Q Bc5 Rc1 a1Q Rg1 Bc6 Qd8 Qa2 Qc3 Qf7 Nc2 Nbd7 Ne1 Ne4 Bc4 f1R Bd5 Nf8 b8B+ Nd6 Rb1 Nf2 Bc1 d1R Rb4 Ne4 Ka3 Rd4 Bc7 Nd2 Bb8 Bd7 Bb7 Bc6 Bc7 Qh1 Bb8 h2 Bc7 Rf4 Bb8 Nf5 Nd6 Nd4 Bc7 Re4 Bb8 Re7 Bc7 Rh4 Bb8 Rc7 Ne4+ Kg4 Nf2+ Kg3 Kb2 Nb5 Rf4 Rc8 Bd6 Rc7 Be7 Rh7 Bg5 Rh4 Bh6 Rg4 Ra4 Rb4+ Qb3 Rac8 Ned3 Rb8 Bg5 Rc4 Qc3 Re1 Ka2 Rbc8 Ba3 Ra8 Kb2 Re2 Ra1 Re1 Ka2 Rf1 Bc1 Qg1 Kb2 h1R Ne1 Rh7 Bh6 Qh2 Rb4 Rd4 Rc4 Qh3 Ka2 Rd5 Rf4 Rd4+ Kb2 Rc4 Ka2 Nd6 Kb2 Rb4+ Ka3 Nb5#
q4K1b/pRr1Pnpk/1q3n2/3Q3p/q1b2QNQ/Rn4q1/r5NP/B2q3B w - - 0 1 illegal: Other
3R1rR1/QrB5/5qN1/Q3PbNp/1bKn1p1b/1n3n2/2p1r2P/Nq1n2Bk w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 g5 b5 gxf4 e3 e5 b6 e4 Be2 axb6 Bg4 b5 Be2 b4 Bf3 exf3 d4 Ke7 Kd2 Ke6 g4 Kd5 a4 Ke4 g5 h5 a5 c5 d5 b5 d6 f5 a6 f2 d7 f1N+ Kc2 c3 Kb3 c2 a7 c4+ Ka2 b3+ Kb2 b4 g6 f3 g7 f2 Ne2 Kf3 e4 Kg2 e5 Na6 Qd3 Ne3 Nec3 f1N Na2 Nd2 Rd1 Nf3 Rf1 Nh6 g8N Nc5 Nd2 Qf6 Rf2+ Kh1 d8B f4 Re2 Be7 Rg2 Nhf5 Qd7 N5d4 Nc3 Rh7 Qc7 Bf5 Qa5 Rg7 Bb6 Rf8 a8Q Bd8 Q5a7 Rb7 Bc7 Be7 Rb1 Bd8 Nce4 c3+ Ka1 b2+ Ka2 Be7 Ng5 Nd1 Nb3 Bd8 Ra1 b1R Be3 c1B Ne7 c2 Ng6 Bd2 Bg1 Be7 Qa5 Be1 Q8a6 Bh4 Qa7 Rc1 Rb1 Bd6 Na1 b3+ Ka3 b2 Rg3 Ncb3+ Ka4 Bc5 Rg4 Bb6 Kb4 Bc5+ Kc4 Bb4 Rg2 Nf2 Rg3 Re1 Rd1 b1Q Rd2 Nd1 Rgg2 Ne6 Rd8 Ned4 Rd2 Rf7 Rg8 Re2 Rd3 Rf8 Rd2 Ne6 Rd8 Ned4
bb1r3n/3NB2q/1K2R3/1QPQ3p/2q1B1p1/pP4nN/1k4q1/Nn1Rrr1r w - - 0 1 illegal: No proof kernel
rq1r2N1/1r5N/1Rqb1qr1/2pR3N/n1kB3p/2P3nP/2p1b3/2BQKb1Q w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 d5 g5 dxe4 c3 b3 g6 fxg6 Ba6 g5 Bd3 g4 Bc2 bxc2 f4 Kd7 d4 Kd6 a4 Kd5 h3 g5 f5 e5 a5 b5 f6 c5 f7 h5 a6 g3 a7 g2 Ke2 b4 Bf4 e3 Qe1 h4 Bh2 e4 Qd1 b3 Ra4 b2 Rc4 g4 Qd2 g3 Nf3 g1Q Qe1 g2 Nfd2 Qf6 Qg3 Nh6 Qe1 Nf5 Bf4 Bd6 f8N Qh2 Ra4 Nd7 Qd1 Ba6+ Ke1 g1R+ Nf1 e2 Bc1 Rg6 Nbd2 b1B Rb4 Nb6 Nh7 Rhd8 Ng3 Na4 Rb6 Ba2 Nh5 B2c4 Rg1 Qhe5 Rg5 Ng3 Rf5 Rab8 a8Q+ Rb7 Nb3 Bcb5 Na5 Bd3 Nc6 Kc4 d5 Qe8 Kd2 e1R Ne7 Be2 Ng8 Qc6 Re5 Rf1 Rg5 Rf4 Ke1 e3 Re5 Bf1 Rf5 e2 Re5 Be7 d6 Rf5 d7 Bd6 Rd5 Re5 Qc8 Ree8 Qc7 Ra8 d8B Bb5 Be7 Red8 Qc8 Qf5 Beg5 Qf6 Bge3 Ba6 Bd4 Bb5 Qg4 Ba6 Qf3 Bb5 Kf2 e1Q+ Kg1 Qee7 Kf2 Qec7 Ke1 Qb8 Qh1 Kb3 Ra6 Bbe2 Rb6+ Kc4
8/1B2Q3/qnQnq3/pbb1rPr1/2R1Prk1/K6p/3Rpq1R/bN2BN1b w - - 0 1 illegal: No proof kernel
3brQ1N/R2b1nR1/2rr1R1P/2QBpp1q/2B2P1p/n2N1q2/1n1q4/k3Kn2 w - - 0 1 illegal: No proof kernel
N1qQ1RQb/8/bK2NBp1/3q2n1/n1Pr2R1/pq2q1P1/1p2kr1b/1R3rB1 w - - 0 1 illegal: No possible last move
n3R3/q1BnR3/R1r1p3/N3bP2/1n1prpb1/QN1QP1k1/nb1K2B1/3r1q2 w - - 0 1 illegal: No proof kernel
rbB3k1/4n2R/2Brpnb1/1p1N2nr/1q3N1R/1PQ2nq1/QPbB1p2/K7 w - - 0 1 illegal: Other
N5b1/4k1K1/1rbrppQ1/1R4n1/pP5b/1qB1P1nb/2n1Nq2/BQ2N1qR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 f5 cxd4 Bh3 g6 g5 gxf5 Bg4 hxg4 Ra2 f4 Ra3 Rh4 Ra1 Rh8 Kd2 a3 Kd3 a5 Ke4 d5+ Ke5 a4 b4 g3 h4 d3 c4 d2 h5 a2 h6 d4 g6 g2 e3 d3 h7 f3 c5 f2 c6 f1Q g7 Nh6 g8Q Ra6 c7 Qf2 Qg3 Nc6+ Ke4 Nf5 Rh5 Ne5 Bb2 Nf3 Qf4 Rb6 Qh2 Qd5+ Kf4 Qb3 Qc1 d1B Rg5 d2 Qh5 Ng3 Na3 Bh3 Nc2 e6 Qg4 Be7 Rb5 Bh4 Qg6 Ke7 Bc3 Be2 Qb2 Rd8 Rf1 Rd5 Ne1 Rdd6 Qbb1 a1N Qh5 Bd3 Ne2 Qa2 Rh1 Ng5+ Ke5 g1Q Qh6 Be4 Qg6 Nc2 Ba1 Qb3 h8B Bf3 Bg7 Kd7 Kf6 Ke8 Bh8 Bc6+ Kg7 Kd7 Kh6 Ke7 Bhc3 f6 Kg7 Nd4 Qgc2 d1B Qh7 Bc2 Qh5 Bh7 Qhg6 Nc2 c8N+ Kd8 Bab2 Bg8 Ba1 Rb8 Nb6 Ke7 Na8 Rb6
kBRQ4/5N1B/2qp2qp/3Rr3/b2p2r1/b1Qnq3/r4PbP/nN2BKb1 w - - 0 1 legal: proof: d4 b5 a4 bxa4 Qd3 c5 Qd1 cxd4 g4 e5 g5 e4 Qd3 exd3 g6 fxg6 Nf3 g5 Ng1 g4 c4 a5 e4 g5 b4 a3 b5 a4 e5 g3 c5 g2 b6 a2 b7 d2+ Ke2 d1B+ Ke1 g4 e6 h6 e7 a3 c6 g3 c7 Ba4 Bb5 Na6 b8B Nb4 Bf4 Ra5 Ke2 Nf6 Bd6 Nfd5 Be5 Nc2 Bf6 Rg8 Bg5 Bb7 c8Q Nf4+ Kd2 Nd3 Nh3 g1Q Ke2 g2 Qc3 Qc8 Qb4 Qc6 Bh4 Rg4 Ba6 Re5+ Kd2 Ba8 Bg5 Bb7 Be3 Qc1+ Ke2 Qg6 Re1 g1B Qc3 Bg2 Ng5 Qc6 Nd2 Qg6 Rb1 a1R Nf7 Ra2 Rb5 Na1 Rd5 Qc2 Bb7 Qb3 Rd1 Qc4 Rb1 Qcc6 Rc1 Qc8 Ba8 Rc2 Rc5 a2 Qb4 Nb3 Rc3 a1Q Rc5 Qf6 Be4 Ra2 R1c3 Qc1 Bh7 Qg6 Rd5 Na1 Qb2 Qb7 Rc7 Qbc6 Nb1 Bg7 Qd2 Bf6 Qc2 d6 Qd2 Bg5 Rc8+ Kd7 Qc2 Qc7 Qd2 Kc6 e8Q+ Kb7 Qd8 Ka8 Qb2 Q7c6 Qc2 Rf5 Bd2 Be3 Bb4 Bd2 Ba5 Bb4 Qb2 Ba3 Be1 Bf3+ Kf1 Qe3 Qc2 Re5 Qc3 Bg2+
1R1r1B1K/2q5/Q1P5/1R2n1R1/1NBpb1q1/bQr2rpr/P1n3pq/N5kn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Ke5 h4 g5 c5 d5 h5 f5 c6 b5 h6 f3 Kg3 f2 h7 b3 Bc4 f1N+ Kg2 b2 Be2 g3 Kf3 d3 Qc2 Kd4 e5 d2 e6 d1Q e7 g4+ Kf4 g2 Kg5 f4 Kg6 g3 e8R b4 Bg4 f3 Rh2 f2 Bh5 b3 Rh4+ Qg4+ Kf7 Nd7 Qe2 Ne3 Bg6 f1R+ Bf5 Ngf6 Bc2 Ba3 Rf8 Rf3 Nc3 b1R Bd3 b2 Rh5 Nc2 Bh6 Rc1 Rb1 Qc7 Rg5 Ne4+ Kg7 Nf2 Bc4 Nh1 Rd8 Ba6 Rb8 Rd8 Qf1 Ke3 h8Q d4 Qg8 Ne5+ Kh8 Bb5 Qd3+ Kf2 Nge2 Ba4 Bf8 Ra5 Nf4 Kg1 Ne6 Bb5 Nc5 Ba4 Ra1 b1Q Nb3 Rb5 Nd5 Rc5 Ba6 Rc3 Nb4 Bb5 Qe2 Bd3 Bc4 Bh7 Rb5 Re1 Qd3 Qd1 Rb1 Qh5 Qe6 Qh2 Na1 Re4 Qc8 Rh4 Qa6 Rh3 Rb2 Rf7 Rb8 Qg4 Qd1+ Ne1 Qb3 Rff3 Re2 Nc2 Re4 Rd5 Rf4 Rd8 Rff5 Nd3 Ra5 Ne5 Rab5 Be4+
4b3/K1B1N2k/np2bn1b/4r3/rQrpr1B1/qP3R1q/1pR1Pn1N/Q5N1 w - - 0 1 legal: proof: h4 c5 f4 g5 d4 cxd4 f5 gxh4 f6 a5 b3 a4 Nc3 a3 Nb1 exf6 Qd3 f5 Qc3 f4 Qb2 axb2 Kf2 d5 g4 h5 a4 f5 c4 Kf7 a5 Kg6 c5 f3 c6 b6 c7 h3 a6 f4 g5 h2 a7 h4 Na3 d3 Bd2 d4 Rd1 h3 Nb1 Bh6 Re1 Nf6 Rc1 Na6 Rc2 Be6 c8N Qd6 Ne7+ Kh7 Bb4 Rae8 a8Q d2 Qa7 d1R Nd2 Ra1 g6+ Kg7 Bg2 Ra4 Nf1 Rhf8 Ke1 f2+ Kd2 f3+ Kd3 Rc8 Bd2 Qa3 Bf4 Rcc4 Bc7 Re8 Qa8 Kh8 g7+ Kh7 Qa7 Nb8 Qa5 Na6 Qc3 Be3 Qb4 Bh6 Ne3 f1Q Ng4 f2 Bf3 Nh5 Ke4 Nf6+ Ke5 Qg2 Kd6 f1B Bc6 Qf3 Bd7 Bg2 Bc8 Qf1 Bd7 Be4 Bc8 Bg6 Bd7 Nc5 Kc6 Na6+ Kb7 Qf5 Ka7 Bgf7 Nf3 Qh5 Rd1 h1N Ng1 h2 Rf1 Qh3 Rf3 Nf2 Bc8 h1R Nh2 Rd8 Bd7 Be8 Bc8 Rd5 Bd7 Re5 Bc8 Bg5 g8Q+ Kh6 Qf8+ Kh7 Qe1 Bh6 Qa1 B6f7 Bg4 Be6 Nf5 Re4 Qb4 Re5 Nf1 Rh2 Ne7 Rg2 Nh2 Rg3 Rf4 Rge3 Rf3 R3e4
Nrn1B3/1n3QK1/PQp2n2/1q1r3R/1Pn1pb1B/q5r1/2k1pQR1/1bN4q w - - 0 1 illegal: No proof kernel
2r3B1/2n3PR/k1r2rbn/B1Kp1qN1/NQ5b/1qR2pr1/3P1n1p/Q2b2B1 w - - 0 1 legal: proof: b4 e5 f4 exf4 h4 c5 a4 b5 c3 bxa4 b5 g5 Qb3 gxh4 Qb4 cxb4 Kf2 f5 g4 a5 e4 d5 g5 Kd7 c4 Kc7 g6 Kb7 g7 h5 e5 h3 b6 h2 c5 h4 e6 f3 Ke3 b3 Kd4 h3 e7 a3 e8Q b2 Qe7+ Qd7 Qe1 f2 Qe3 f4 Qf3 a4 Qb3 a2 Qb4 a3 Nf3 Rh6 Bd3 f1R Qa5 Be7 Qa4 Rc6 Be4 Na6 Nc3 b1B Qb4 Qf5 Ng5 Nc7 Bb2 Ka6 b7 Nh6 b8B Rf2 Rc1 h1N Ba7 h2 Na4 Bd7 Rc3 Rc8 Bb6 f3 Ba5 Rg2 Bc2 Rf6 c6 Rg3 Be4 Bd8 Kc5 Nf2 Bc2 Be8 Be4 Bc2 Rc1 Qh3 Bh7 a1Q Bg8 a2 Re1 Qd1 Re4 a1R Rh4 Rc1 Ba1 Nf5 Rh7 Bg6 Bb2 Nh6 Ba3 Nb5 c7 Qf5 Bb2 Bd3 Ba1 Qb3 Bb2 Bc2 Ba1 Ra8 Bb2 Bd1 c8Q+ Ka7 Qe6 Nc7 Qe1 Ka6 Qh1 Rc2 Qg1 Rc8 Qe1 Be2 Qa1 Rc1 Rc4 Rc2 Bd4 Bd1 Rc3 Rf8 Nh3 Bh4 Ng5 Rf6 Be3 Nfg4 Bg1 Nf2 Qba3 Rc1 Qb4 Qbb1 Kd4 Nhg4 Ra3 Nh6 Re3 Rcc6 Rc3 Rb6 Kc5 Qb3 Re3 Rbd6 Rc3 Rc6+
QQ6/4N1PK/r1nq1p2/PRNp1N2/q1q4R/nr3nr1/pbBB1nk1/3b4 w - - 0 1 illegal: No proof kernel
2rB1nk1/1K1q1bP1/3P1p1Q/q4N2/1n2Q1Q1/n1pr2NB/1p3b1R/rbR3b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 b5 Ke4 c5 a4 b3 d4 c3 g4 b4 e3 b2 g5 f3 d5 f2 a5 b3 a6 c2 g6 c4 a7 f6 g7 Kf7 Ra4 c3 Qd4 h3 Ra2 h4 Ra4 h2 Qd1 h3 Qf3 Be6 Ra1 Bc5 d6 Na6 Bg2 f1Q Na3 b1N Qg4 b2 Nc4 Ne7 Ne2 Rc8 a8Q Na3 Ng3 Ng6 Qc6 Bf5+ Kd5 Qd7 e4 Bg1 e5 Kg8 e6 Nf8 Be3 c1B e7 Bb1 Bb6 Bce3 e8Q Bef2 Ne3 Nb4+ Kc5 Qa6 Qeh5 Qa4 Bd8 Rh6 Kb6 Rh7 Bc7 Qa5+ Kb7 Rh8 Qhg6 Rh5 Qce4 Rd5 Nef5 Rd3 Q6g5 Bb6 Qe8 Bgf2 Rc1 h1B Qh6 h2 Qee4 Bg1 Bf1 Bbf2 Bh3 Bf3 Rc2 h1R Rd2 Bd1 Re2 Bb3 Rc2 B1a2 Rac1 Bb1 Re2 Bf7 Rd2 Bd4 Rh2 Bdf2 Rf1 Bc2 Rg2 Bh2 Rb1 Rc1 Ra1 Bhg1 Rh2 Rcd1 Rb1 R1d2 Rf1 Rd1 Re1 Ra1 Rc1 Qe6 Bb6 Bb1 Bd8 Qd7+
1n2bB2/QrRQ1NPb/2pnP1K1/1B1p1Q1N/2R3n1/b7/p2bkqqq/2r5 w - - 0 1 illegal: No proof kernel
R1N1B1q1/Q3BRpr/K2P1BP1/2p1pr1b/1n5n/3qN1qk/2rb1r2/Q6n w - - 0 1 illegal: No possible last move
1bKB4/R5pq/bP3N1b/2NB1RP1/nb1rQ3/Q2qp1rp/n1k2r2/4q1N1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 h4 fxe4 a5 Qc7 h5 Qh2 a6 bxa6 h6 a5 Qg4 a4 Qf3 Nxh6 Qd1 Ng8 Ke2 Kf7 g4 Kf6 c4 Ke5 b4 d5 c5 h5 c6 a5 c7 h4 b5 a3 b6 e3 Kd3 e2 f3 e1B Bg2 a4 Ne2 a2 Bh3 a3 Nbc3 Ba6+ Nb5 Nf6 c8N Nbd7 Qa4 Nc5+ Kc2 d3+ Kd1 d2 Kc2 d1R Qc4 d4 f4+ Ke4 f5 e5 Bf1 Nd5 f6 Na4 Kb3 Bd2 f7 Nb4 Qc6+ Kd3 Ne7 e4 Nd5 Bh6 Bg5 e3 Bg2 Rg1 Rf1 a1B Nf6 a2 Rf5 Rd8 Bd5 Rg3 Nbc3 h3 Ka3 Kc2 Ng1 d3 Nce4+ Bc3 Qc4 d2 Nc5 d1Q Qe4+ Qd3 Bh4 Bd6 f8Q Qd2 Rh2 Bb8 Re2 Re8 Re1 Rd8 Ra1 Qe1 Qfe7 Rhf8 Qa7 Nb2 Qa8 Nd1 Ka4 Nb2+ Ka5 Na4 g5 Rf3 Bg3 Rd6 Be5 Rg3 Qa7 Rd7 Bc7 Rd6 Bd8 Rf7 Rb1 a1Q Rd1 Qb2 Ra1 Na2+ Qb4 Bb5 Qe7 Re6 Rf2+ Qdd2 Rb1 Qb3 Ra1 Nb2 Ng4 Nc1 Na4 Re4 Rf3 Rf5 Nf6 Qdf2 Qe8 Rd4 Qe4+ Bd3 Ra3 Na2 Nc5 Bd2 Rf4 Qf3 Ra4 Qh5 Rf2 Qg6 Ra3 Qh7 Rf1 Rc4 Ka6 Rd4+ Kb7 Qc3 Ra8 Na4 Qa3 Qb3 Ra7 Bb4 Rf4 Qc4 Kc8 Qb3 Rg4 Rf2 Rf4 Qbc3 Rf5 Qb3 Qf4 Bb5 Qe5 Qd3 Qe4 Ba6+
4n2N/1Kr1kpRq/1Q1N1nq1/1p1r1RPB/1PQ1Bb2/5qRp/b5qr/6b1 w - - 0 1 legal: proof: h4 d5 f4 e5 c4 dxc4 b3 exf4 h5 a5 h6 a4 Bb2 a3 Rh2 axb2 Rh5 gxh6 Rh2 h5 Rh1 h4 Kf2 c5 Kf3 b5 Ke4 h5 g4 f3 a4 h3 d4 f2 b4 h2 a5 h4 d5 h3 a6 c3 a7 c4 d6 c2 Kd5 c1R e4 c3 e5 c2 d7+ Ke7 e6 Qb6 g5 Nc6 Qd3 Kd8 Ra3 Na5 Be2 f1Q Bh5 Qg2+ Nf3 Nb7 Qc4 Bc5 Nc3 b1Q Ne4 Bg1 Nh4 Ke7 Rg3 Nd6 d8R Ne8 Rd6 Bf2 Rf1 Bg1 Rf5 h1Q Rc6 Qa6 Rb6 Rd1+ Kc6 Rd5 Nd6 c1B Ng6+ Kd8 Rf6 Bf4 Rf5 Rh6 Nh8 Ke7 Bf3 Rf6 Bh5 Rb8 a8Q Rb7 Qa7 Qf3 Qb8 Qhg2 Qa7 Qaa2 Ra6 Qac2 Qb6 Ra7 Re5 Qh7 Rf5 Rd7 Ra8 Ra7 Rb8 Ra2 Ra8 Bd7+ Kb7 Rh6 Rb8 Ngf6 Ra8 Qgf1 Rd8 Rh2 Rc8 Q1g2 Rb8 Nc7 Rg8 Nce8 Rg7 Qbc2 Re5 Qcg6 Rf5 Bc8+ Kc6 Rd1+ Qe4 Kf8 Qd5 Ng4 Qc7 Qf6 Qb6 Nc7 Ne4 Bd7+ Kb7 Ke8 e7 Be6 Qdc5 Ba2 Ka7 Rd5 Qc4 Qc6 Kb8 Rhd6 Ka7 Rd7 Kb8 Qcg6 Kb7 Rd8 Nd6+ Kd7 Qe3 Rc8 Qf2 Nf6 e8B+ Ke7 Qb6 Re5+ Bc6 Nce8 Be4 Rd5 Qf2 Rc6 Qb6 Rc7+
3rknq1/1B3p2/1qp1q1qK/1r1bpP2/1nN1nN2/2bB3P/N1R1r3/QQ4R1 w - - 0 1 illegal: No possible last move, all moves rejected
3QNqbN/B2P2P1/2R3Nb/b2rrr2/2n1q2p/R1n3np/4p3/QBK2k1n w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 Kd2 Kf6 a4 Kg5 g4 Kf4 f3 Kg3 f4 Kf2 g5 e5 a5 c5 f5 h5 d5 b5 a6 e3+ Kc2 h3 a7 c3 g6 h4 g7 e4 f6 e2 d6 e1R f7 e3 Ra3 c4 Bb2 b3+ Kc1 b4 Ba1 c2 Bc3 Nd7 Bd4 Ngf6 Bg2 Ne4 Bf6 Rh5 Bd4 Rd5 Ra5 Ng3 Be5 Nb6 Rh2 Be6 d7 Nh1 Bf3+ Kf1 Kb2 c1N Qd4 Ne2 Nc3 Neg3 Be4 Bd6 f8N Bg8 Rg2 Bc7 Ng6 Qf8 Ra3 e2 Bc2 Re8 a8Q Rd1 Bd6 Rf5 Nh8 Ree5 Bb1 Rd3 Ne4 c3+ Kc1 c2 Qb2 Rdd5 Nf6 Nc4 Bc5 Ba5 Qd4 Nd6 Nf3 b2+ Kd2 c1B+ Kc2 Bd2 Ba7 Nc4 Ne8 Bh6 Qd8 Ne4 Rg6 Neg3 Rc6 b3+ Kd3 Re7 Ne5 Re6 Ba2 b1N Neg6 b2 Kc2 Nc3 Bb1 Ne3+ Kd2 Ree5 Bd3 b1Q Qa4 Qa2+ Kc1 Qc4 Bb1 Qe4 Qd4 Na4 Qb2 Nc3 Qa1 Nc4+
b5B1/R1qp3n/nQq1B1bp/3q1NbQ/r1qBn3/4P1rp/1KP3R1/1N2k3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 a4 Ke6 g4 Ke5 a5 Ke4 g5 f5 e3 b5 a6 h6 g6 h3 g7 d3 a7 f3 Ra6 f4 Ne2 b3 Kc3 b4+ Kb2 f2 Ka1 Kf3 Ba3 d2 Rb6 b2+ Ka2 Nf6 g8Q Nh7 Rb7 Qc7 Qg6 Na6 Qf5 Rg8 Rb5 Be7 Re5 Bg5 Rc5 Bb7 Qe1 d1Q Rh2 Qd5+ Rc4 Rg7 Nbc3 b1N Nb5 b3+ Kb2 Nc3 Qb1 Ne4 Ng3 Bc6 Bd3 f1Q Nc3 Qg2 Bb4 Kf2 Bc5 f3 Ra4 Qc4 Bd4 Bb7 Qa2 Ke1 Nb1 f2 Qf3 f1Q Nf5 Q4c6 Bc4 Qfe2 Bg8 Qec4 Qh5 Qd2 Be5 Qdd5 Rg2 Rg6 Bd4 Rg7 Ka3 b2 Qb3 Rg6 Qb6 Rg7 Nc3 b1B Kb2 Ba2 Ra3 Rf8 Nb1 Ba8 Nh4 Rf4 Nf5 Bd8 Be6 Rg3 Ra5 Bg5 Ra4 Bb7 a8B Qf1 Be5 Qd1 Nc3 Nb4 Qa6 Q6d6 Bg8 Nf2 Rg1 Bf7 Bh8 Bg6 Nb1 Rc4 Bf6 Ne4 Qb6 Qe6 Ra7 Na6 Bg7 Ra4 Rg2 Qfc4 Be5 Qdd6 Bd4 Bd5 Bb7 Qde5 Bc8 Ba8 Bb7 Qa5 Bd5 Qec6 Bde6 Qad5
1b4rk/3p4/1Q1rPq1q/NB1pr1n1/N3q1Q1/1b1p1R2/1B1n1P1r/3QKb1R w - - 0 1 illegal: No proof kernel
3rbb2/3p3N/Q2p1P2/q2qR2Q/2QPb1K1/2rn1B2/3p1nB1/1kqR1Nrq w - - 0 1 illegal: No proof kernel
R2q3N/N1P2rpn/2n2B2/2R1Q3/k6P/bb1pR1qQ/q1r1p1B1/3bbn1K w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 b5 c4 e5 h4 d5 f4 Kd7 Kf2 Kc6 Kg2 e3 c5 d3 a5 e4 f5 b3 f6 b4 a6 Kb5 c6 e2 c7 e1B a7 b2 f7 b3 Ra2 d4 Ra6 g3 Qf3 e3 Qf6 e2 Ra1 d2 Qd6 d1B Be3 d3 Bg5 Nc6 Na3+ Ka4 Nh3 b1Q Nf4 b2 Nb5+ Qa2 Rc1 b1N Ng6 Be6 Bf6 Nd2 Rh3 Beb3 Qe5 Ba3 f8Q Rh5 Rc2 Rf5 Nh8 Rb8 Kg1 g2 Rc5 Rb6 a8R+ Ra6 Bg5 Nf6 Na7 Nh7 Re3 Rf7 Bf6 Rb6 Qg8 Rb4 Qge8 Rc4 Q8e6 Rc2 Qh3 Ne4 Qhf5 Ng3 Qh3 Bd2 Kf2 g1Q+ Kf3 Qh2 Bg2 Nf1 Kf2 Qf4+ Kg1 Be1 Kh1 Qg3
n1n1N3/1bP1p3/1B3rn1/2q1q1rp/1b2BQ1R/1b2KR1p/1QP2n2/1NB1k1r1 w - - 0 1 illegal: Other
1r1N2k1/q1Pp4/4pbNq/K1Br2rB/5P1r/b1RBRn2/2pQQ1b1/5nq1 w - - 0 1 illegal: No proof kernel
2nR3q/rnpnk3/2br2B1/QP1p4/R2r1B2/1Pq4R/1Kp1bb1N/r3N2Q w - - 0 1 illegal: Other
Q3RRr1/1rp1N1b1/1n1k1pP1/3rqp2/1PRrB2Q/3qq3/1K2bb1B/4Nn2 w - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 dxc4 f5 g5 f6 gxh4 Na3 exf6 Nb1 f5 g4 Ke7 b4 a5 e4 h5 d4 c3 e5 a3 g5 a4 e6 f6 d5 h3 g6 a2 Ke2 a3 Kd3 h2 Kc2 h4 Qg4 h3 Qe2 Kd6 e7 Ba6 e8R Nd7 Qg4 Be2 Re4 Nh6 Re3 Bg7 Re7 Ra7 Re4 Nb6 Bd2 Rg8 Bc1 Rb7 Qh4 Ng4 Re8 Ne3+ Kb3 c2 Nc3 Qd7 Bg2 Nf1 Nf3 Qd8 Bg5 c1Q Ne1 Qe3 Rc1 a1B Be4 a2 Rf8 Bb2 Rc2 a1Q Bf4+ Kd7 Rg1 h1R d6 h2 Be5 Ke6 d7 Qa5 Bd6 Qe5 Ka2 Ba1 Nd5 Bd4 Ne7 Bc5 Rg2 Rg1 Rc4 h1R Rf2 Rg4 Rh2 Qa8+ Kb1 Qaa3 d8Q Qad3+ Ka2 Rhg1 Qa8 Kd7 Bd5 Rd4 Be4 Rg4 Re8 Rd5 Rh1 Q5d4 Bh2 Qe5 Rf8 Kd6 Rg1 Q3f4 Rg3 Bf2 Re3 Qe6 Kb2 Qg3 Bh1 Rgd4 Re5 Qge3 Be4 Kd7 Nc8 Qd6 Ree8 Qe5 Ne7 Kd6
qNr1r1Nn/1PQ2b2/r7/2Bpq2R/nKR1NQ2/3P3B/p1p1rb2/bq2k3 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 a5 Na6 c5 Nb4 a6 Nc2+ Kf2 bxa6 Ra4 a5 Ra2 a4 Ra1 Bxc5+ Kf3 Be7 Kf2 Bf8 e4 Ke7 Ke2 Kf6 Kd3 Ke5 Kc3 c5 b4 a5 g4 f5 b5 d5 g5 h5 b6 h3 b7 f3 g6 Kf4 d3+ Kg3 e5 Kf2 g7 a3 e6 a2 e7 f4 e8Q a4 Na3 c4 Qe4 h4 Qf5 h2 Bd2 h3 Qh7 Nb4 Nb5 a3 Qa4 Ra6 Qd1 Bc5 Qb1 Nh6 g8N Be6 Na7 Nf7 Qc1 Qa8 Ne7 Rc8 Ne2 Nh8 Nf5 Bf7 Rg1 h1R Qd1 h2 Rb1 a1B+ Rb2 Na2+ Kc2 c3 Kb3 c2 Rg4 Nc3 Rg5 a2 Rh5 Na4 Bh3 Re1 Ne7 h1Q Ng3 Qh2 Qc1 Re2 Bb4 Be3 Ba3 Bb6 Qe3+ Ke1 Nac6 f2 Nb8 f1Q Kb4 f3 Ng8 f2 Ne4 Qe5 Qf4 Qg1 Rb3 f1R Rc3 Bf2 Rc4 Re8 Qhh6 Qh1 Qb6 Rg1 Qc7 Rgg6 Kb5 Rgc6 Bc5 Qf1 Kb4 Qg1 Qb6 Rcc8 Qc7 Qgg5 Qg4 Qc1 Qf4 Qb1+
4b1qB/1P2npbn/4Q2K/B3p1N1/1qq1pP2/1bNk3N/4R1rR/Q1nn2r1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 dxe4 b4 bxa4 h5 c6 b5 g6 b6 gxh5 Bc4 h4 Bb5 cxb5 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Kg5 Kc4 d4 a5 f4 h3 g4 h2 d5 b4 d6 b3 c3 b2 b7 a3 d7 a2 Nf3 a4 Qc2 a3 Kh5 Nf6+ Kg5 Rg8+ Kh4 Bg7 Kg5 Nc6 Qa4+ Kd3 Nbd2 b1Q c4 Qb4 Rg1 h1N c5 Nf2 Nb1 Nd1 Rg2 h5 Nbd2 h4 Ng1 h3 Ndf3 h2 Bb2 h1B Rh2 Nh7+ Kh5 e6 g5 Bf6 g6 Ne7 Ng5 Bf3+ Kh6 Rb8 Rc1 a1Q c6 a2 Rcc2 Qc1 c7 a1N g7 Nb3 Rce2 Qcc4 Qa1 Nc1 N1h3 Ra8 Be5 Ra2 Bd4 Qf8 d8B Bd7 c8Q Be8 Ba5 Bg4 Re1 Rf2 Re2 Rg2 Qb8 Rg1 Bb2 Qa6 Nf3 Bh4 Qc8 Bf5 Bf6 e5 Qc6 Bfd7 Qe6 Ba4 Kh5 Rh8 g8N Qac4 Bg7 Bg5 Nf6 Bb3 Nd5 Bf6 Nc3 Rg8 Bh8 R8g2 Nfg5 Qg8 Kh6 Bg7+
5NB1/qp1br3/n4n1b/2pn3Q/2BqN2K/qr1P2bQ/1P2Rp2/1Rn2Nk1 w - - 0 1 illegal: No proof kernel
N2b3Q/qp2N1N1/r5K1/bP1R2pn/b3nqb1/3q3P/1n1p1rQ1/4kBBR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 b5 cxd4 Qd2 e5 Qc3 exf4 Qb4 axb4 Kf2 Ke7 c4 Ke6 a4 Ke5 e4 g5 a5 f5 a6 d5 c5 g3+ Kf3 b3 h3 d3 c6 Kd4 c7 b2 e5 d2 e6 d1N e7 g2 e8N Bb4 a7 Nf6 Bd2 Rf8 Bc4 Ba5 Ra3 Na6 Bb4 Nc5 Rb3 Nce4 Be2 Nh5 Nc3 b1B Na2 Bc2 Bd2 Nb2 Rc3 Ba4 Be1 Bd7 c8Q Qb6 Rc5 Rf7 Bd1 Kd3 Ng7 d4 Ne2 g1B Bf2 Kd2 Nec3 d3 Nb4 Rf6 Bd4 Ke1 Qc6 d2 Be2 Raf8 a8Q Qa7 Qd5 Ra6 Nc6 Bd8 Bf1 Be3 Kg2 f3+ Kh2 f4 Ne7 f2 Qb8 Nd6 Qg2 f3 Ncd5 Ne4 Nb6 Bg4 Na8 Ba5 Rd5 Bf4+ Qg3 Bfc7 Be3 Rf4 Qh8 Bd8 Qg2 Rff6 Be2+ f1Q Bg1 Qff2 Bf1 Qfd4 Qg3+ f2 Kg2 Bf5 Kf3 Rf8 Qg2 Qe5 Nb6 Bg4+ Ke3 Qd6 Kd4 Qb4+ Ke5 Rf3 Na8 Rff6 Bc4 f1Q Be2 Rf2 Bd3 Bf3 Kf5 Qe2 Bc4 Qee3 Bf1 Qd3 Ne6 Bg4+ Kg6 Nhf6 Ng7 Qd6 Nc6 Qf4 Ne7 Nh5+
8/1p2nK2/1rB2rB1/P2pR2q/p2P1b1Q/1qQqqnbN/R1b4r/3k1NN1 w - - 0 1 illegal: No proof kernel
2NBbr2/1ppP2K1/3pqR1n/B2R4/2q2b1b/r1qn4/kP1Q3Q/1r1q2RN w - - 0 1 illegal: No proof kernel
NnQ1qq1r/P5b1/RR1qbB2/1n1p2N1/bBR5/Q2qpnr1/3PK1p1/1k6 w - - 0 1 legal: proof: g4 c5 e4 h5 b4 hxg4 e5 cxb4 e6 a5 c3 a4 Bb5 fxe6 Bf1 e5 Bc4 e4 Bb3 axb3 h4 Kf7 f4 Ke6 a4 Kd5 f5 Kc4 h5 Kd3 f6 e5 h6 g5 c4 d5 a5 b5 f7 g3 a6 g4 h7 e3 c5 e2 c6 g2 a7 g3 c7 e4 Nf3 g1N Ra2 g2 Rh6 b2 Nd4 b3 Ra1 b4 Nb5 Nf6 Ra4 Bg7 f8Q Nf3+ Kf2 Ne8 Re6 Nd6 Qf5 Qf8 Rh6 Be6 Qf1 Kc2 N1c3 b1B c8R b2 Qe1 b3 Nc7 Nb5 Ra6 Ba2 Rf6 b1Q Ba3 b2 Bb4 Bb3 Qg4 Rg8 h8B Ba4 Rg6 Qa2 Qa1 b1Q Rh6 Qc4 Qa3 Qc6 Qf5 Qcd6 Qh3 Be5 Bf6 Rg3 Rg6 Bf4 Qh8 Bh6 Qg8 Bg7 Rb6 Na6 Rh6 Rb8 Na8 Qb3 Rcc6 Rc8 Rc4 Nb8 Qf7 Re8 Qc7 Qb1 Ke3 Qf1 Qc8 e1Q+ Ne2+ Kb1 Ra6 Qc1 Nf4 Qd3+ Kf2 Qcc3 Nh3 Qce5 Rg6 Qh5 Ng5 Rd8 Rh6 Qhe8 Rb6 Qd4+ Ke2 e3 Rcc6 Qe4 Rh4 Qf5 Rhc4 Qc2 Ra6 Qe4 Rcb6 Qd4 Rc2 Qd3+ Kd1 Qeg6 Qcc3 Qff7 Qc7 Rh8 Qc8 Qd4 Ke2 Qff8 Rcc6 Qge8 Rc4 Qd3+
N1nr3N/P1b1p3/nrbBPQpR/5qBn/1R2q3/KQ1np1r1/b6k/B7 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 Bg2 cxd4 Bf3 f5 Be4 fxe4 Kd2 Kf7 a4 Kg6 h4 Kh5 c4 b5 Kc2 d5 Kb3 d3 f4 d4 e6 d2 c5 e3 f5 g6 f6 d3 c6 Qd5+ Kb2 b3 c7 b4 a5 Ra6 f7 Nf6 Ra2 Bd7 c8Q Qf5 Rh3 Bg7 Rg3 Rd8 Qc5 Bc6 f8B Bh6 Qb6 Bf4 Rh3 Bc7 Nf3 g3 Bh6 Kg4 h5 g2 Ra4 g1R Bg5 Rg3 Qg1 d1B h6 d2 h7 Be2 h8B Bc4 Rh6 Nh5 Qb5 Kh3 Ne5 B4d5 Qd1 Kh2 Nc3 Bc4 Qe1 B4d5 Nf7 d1N+ Ka1 Nf2 Ba3 Bc4 Kb2 B4d5 Qd2 Bc4 Qd4 Nd3+ Kb1 b2 Nd5 Qf1+ Kc2 b1N Nb6 Nc3 Na8 Ne4 Qbd5 Rb6 a6 Nd6 a7 Na6 Qc3 Ne1+ Kb2 b3 Qd1 Nc8 Bd6 Qf4 Ka3 b2 Rb4 Ba2 Qdb3 b1Q Bhe5 Qf3 Nh8 Qbf5 Qa1 Nd3 Qf1 Qh3 Ba1 Qe4 Qf6 Qhf5
1r1B1r2/p5b1/3NQ3/RnP2R2/pNr1NB1Q/2rb1kbK/P1q2qp1/1q2n3 w - - 0 1 legal: proof: f4 b5 g4 e5 d4 exf4 g5 c5 g6 cxd4 Bg2 hxg6 Bd5 g5 Bb3 g4 Ba4 bxa4 Kf2 Ke7 Kg2 Ke6 b4 Ke5 c4 Ke4 h4 g5 e3 d5 c5 f5 b5 g3 h5 d3 h6 d4 h7 f3+ Kh3 f2 b6 f1R b7 g4+ Kg2 d2 Ba3 d3 Rh6 f4 Rf6 f3+ Kh1 g2+ Kh2 f2 Rf7 Ne7 Bb4 Qb6 Ba3 Nbc6 b8Q Nb4 Rf6 Bg7 Qb3 d1R Rf5 d2 Qg3 Nec6 Nf3 Rb8 Bc1 Rf8 h8B Nd3 Ne1 Nd4 Qh4 Ba6 Nc2 Ne1 Nb4 g1B+ Kg3 Bd3 Qg8 Bh6 Bf6 Bg7 Bd8 Nb5 Qb3 Nf3 Kg2 Bh2 Qe6+ Bhe5 Qh3 Rde1 Qh4 d1Q Bd2 Qc2 Bc1 Bh6 Bd2 Bf4 Bc1 g3 Kh3 g2 Bd2 Nfd4 Nc3+ Kf3 e4 Re3 Rb1 Bg7 e5 Rc1 Ne4 f1Q Rb2 Bc4 Rb1 Rc3 Rb2 Bd3 Be3 Ke2 Rb1 Bg3 Bf4 Qg1 Rf6 Nc7 Na6 Qcb2 Qc4 R3c2 e6 Nf3 e7 Ne1 e8N Kf3 Qe6 Rc4 Rf5 R1c3 N8d6 Qc2 Rb5 Qgf2 Ra5 Qbb1 Nb4 Nb5
1q6/p2k1K2/1n1qnBnp/Q1B4P/RQ1p2rP/1R2nbqr/2NN1b2/5Br1 w - - 0 1 illegal: Other
Rq1Bnk2/p1bP1N1Q/2K5/2R1q1n1/1N3P1Q/1q2n2b/bBppr2q/5Br1 w - - 0 1 illegal: No proof kernel
2r1kn2/1bR1NNn1/bb1QPR2/rqBb3p/pB1QP3/1B1p4/2b2r2/4K1b1 w - - 0 1 illegal: Other
2rnKQ2/6P1/1Br3Qr/b1nk1pRb/2R2P1p/q1R2rp1/N4r1N/2Bn2r1 w - - 0 1 illegal: No proof kernel
b7/4p2P/1b3p1k/4R2r/b1bp1P1b/qBB1N1R1/Nnn3R1/rbQQ1nK1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 b5 e6 c5 Bh3 cxd4 Kf1 Ra6 Kg2 Rxe6 Kg3 Rf6 Bf1 Re6 Kg2 Re2 h4 g5 c4 d5 a4 g3 a5 b3 a6 b4 h5 g4 h6 f6 a7 Kf7 a8R Kg6 c5 d3 c6 b2 c7 b3 Nf3 d2 R1a7 Qd6 Ra6 Nd7 Rh3 Re1 Ra5 Ne5 Nh2 Be6 c8Q Nd3 f4 Qa3 Kh1 g2+ Kg1 Rh7 Qe2 d1B Nd2 b1B R5a7 b2 Qe3 Ba4 Qe2 Ba2 Nc4 b1B Be3 Nb2 Nd6 Bc4 Kf2 g1N Qa6 Nf3 Rg3 Nd4 Qc6 Nc2 Ne4 Bc8 Qd2 Bb7 Kg1 Rd1 Rc8 Ba8 Ra5 Bg7 Rg2 g3 Ng4 Rh8 Nc3 Re1 Re2 g2 Bd4 Kh5 Qd1 Kg6 Kh2 g1B+ Kg2 Be3 Na2 Rh7 Bc3 Bb6 Ne3 d4 Kf2 Rh8 Bg2 Rh1 Rb5 Rh5 h7 Nh6 Rg8 Ng4+ Kf1 Nh2+ Kg1 Nf1 Re5 Kh6 Bd5 Bf8 Rg3 Rg8 Be6 Rgg5 Re4 Ra5 Re5 Ba6 Qe4 Qd6 Ng4+ Kg7 Qe1 Be8 Nc1 Ra1 Qe3 Qa3 Reg2 Ba4 Bb3 Bc4 Qd1 Kg6 Qed2 Bh6 Ne3+ Bg5 Na2 Kh6 Q2c1 Bh4
6Q1/qrprR3/br4r1/nnBQNn2/1NP2B1P/1k3r2/1pr1pbB1/3R1K2 w - - 0 1 legal: proof: f4 h5 e4 a5 g4 hxg4 b4 axb4 e5 d6 Ne2 dxe5 Ng1 exf4 Bh3 f3 Bg2 Qd5 Bf1 Qd8 h4 Kd7 c4 Kd6 a4 Kc5 a5 e5 d3 g5 a6 b5 a7 f5 Rh3 g3 Be3+ Qd4 Bg2 b3 Qd2 f2+ Ke2 f1R Nc3 Kb4 Rh1 f4 Qd1 f3+ Kd2 g4 Rb1 e4 Na4 b2 Qe1 f2 Ke2+ Kb3 Bf4 b4 Rh2 Rh7 Qd2 Ba6 Be3 Rc1 Rh1 f1R Rh3 Ne7 Bh6 Nf5 Bf4 Rc2 Ra1 b1R Rh2 Bc5 Rh1 Nc6 Nb6 Rb8 a8Q Rb7 Ra4 Rf3 Nd5 Na5 Ra1 Rd7 Qg8 Rbb2 Rd1 Rb6 Bh3 g2 Rh2 g3 Ke1 Rf2 Nf3 g1N Ne5 Ne2 Bg2 Rf3 Rh1 Qe3 d4 Rb7 Rf1 Rb1 Rf2 Nc3+ Re2 Nb5 Qd3+ Ka4 Qd2 b3 Nb4 Rbb2 d5 Qg1+ Bf1 g2 d6 Qe3 Qd4 g1R Qdd5 Rg6 Bh3 Qd4 Bg2 Rb1 Re3 Qa1 Re2 Bf2+ Kf1 Qd4 Ree1 Qa7 Re3 b2 Ree1 Kb3 Re2 Ra1 Ree1 Rf7 d7 Ra2 d8B Rd7 Be7 e3 Bc5 Ra1 Rd4 Rd1 Re4 Rdd2 Rd1 Rdd6 Ng4 Rdb6 Re7 Rd4 Ne5 Rdd2 Qc6 Rd7 Qcd5 e2#
4q1bB/RrQ3n1/1N3QpP/b1Rb4/1pB1r2K/rpP2r1N/1b6/1n1kr2Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Ke6 h4 Ke5 e4 d5 h5 b5 c3 f5 h6 g3+ Kg2 g6 Kh3 f3 a5 b3 a6 g2 a7 f2 Bd2 d3 Be3 d4 Kg3 d2 Ra2 d3 Qc2 d1R Rh4 f4+ Kf3 d2 Rh3 Ba3 Rh1 b4 Qc1 Re1 Bd3 f1R+ Bf2 d1R Qb2 Ne7 Nd2 Nd7 Kg4 f3 Bc4 Re8 Kh4 Kf4 e5 Bb7 e6 Nb6 Ba6 Bd5 Rh2 Nf5+ Kh3 Ng7 e7 Nc4 Qc2 Bb2 Bb5 Na3 Kh4 Nb1 Bd4 f2 Nc4 Qd7 Nh3+ Kf3 Ba6 g1B Qf5+ Ke2 Qf6 Rd3 Ra5 Rf3 Nb6+ Kd1 Rc5 Rab8 a8Q Rb7 Rh1 Bh2 Qd8 Bc7 Bc4 Rg1 Qa8 f1B Qa5 Ra8 e8Q Rgg3 Qee5 Qe8 Qa1 Ra3 Qef4 Bd8 Qc7 Rfe3 Rg1 Rgf3 Rg5 Re6 Ra5 Bd3 Ra7 R6e2 Rf5 B3e4 Re5 Bg8 Rc5 Bed5 Qg5 Ne6 Bh8 Ng7 Qf6 Re4+ Kg5 Rg1+ Qg3 Kd2 Na4 Ba5 Nb6 Rd1 Qgf4+ Kc2 Qb8 Nd2 Qc7 Rh1 Qg1 Nb1 Qg2+ Kc1 Qgh2 Rhe1 Qh1 Re2 Kg4 Kd1 Kh4 Re4+
4k1bR/1nQ3bb/1pPQ3n/1Kq1p3/1B6/1rRrp1r1/1r2PB1Q/N1rN1b2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 g5 g3 gxh4 b5 f5 b6 axb6 Bg2 b5 Bc6 b4 Be4 fxe4 Kd2 h5 f4 e5 c4 d5 a4 b6 a5 d3 g4 b3 Kc3 d4+ Kb2 e3 f5 d2 a6 d3 Kc3 b2 f6 h3 a7 h2 c5 h4 Kb4 h3 g5 Bg7 c6 Na6+ Kb5 Nh6 g6 Bf5 Ra3 Qd4 Rc3 Nc5 Na3 Rg8 Nc2 Nb7 Na1 b1R+ Bb2 Rd8 a8Q Be6 Qa6 Bb3 Ba3 Rb2 Be7 Ra8 Qa2 Ra3 Qab1 Be6+ Bb4 Rab3 f7+ Kd8 f8B Ke8 Be7 Bf5 Qdc1 d1B Bh4 d2 Qd3 Bc2 Qb1 d1R Bf2 Be6 Qa2 Bd5 Qa7 Bg2 Qd2 Bf1 Qd3 Rf8 Qd2 Rf3 Qd3 Rg3 Qb8+ Qd8 Qdd6 Rd3 Qbc7 Qd7 Nf3 Qg4 Nd2 Qd4 Ne4 Bb1 Be1 Bc2 Nf2 Bb1 Nd1 Bc2 Rg1 h1B Bf2 Bd5 Rh1 Bg8 Rh2 Bf6 Rh1 h2 g7 Bb1 Rg1 h1R Rg2 Rdd2 Rh2 Bbh7 Rh3 Rd3 Rh4 Be7 Rh3 Bf8 Rh2 Be6 g8Q Bf7 Qg4 Bfg8 Qh4 Bg7 Rh3 Bg2 Rh2 Re1 Rh1 Bf1 Qh2 Rb1 Nb2 Rec1 Nd1 R1b2 Qg2 Nf5 Qf3 Bg6 Rh8 Nh6 Qg2 Bh7 Qh2 Qc5+
1QBnN1K1/6PB/2k4p/1b4bR/Q1n3n1/3r2p1/1qnpPbN1/Bbr2n1R w - - 0 1 illegal: No proof kernel
RQ2NQrk/n4p2/q1nb1R2/4N3/1B2P1pn/p2rN1rB/n3KP2/3n1br1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxb4 a4 bxa4 g5 e5 g6 exd4 Qd3 hxg6 Qd2 g5 Qd1 g4 e4 d5 c4 a5 h4 g5 c5 a3 h5 b3 c6 b2 h6 a4 h7 g3 c7 d3 Rh5 g2 Qc2 a2 Qc3 d2+ Kd1 d4 Qb3 a3 Nc3 b1N Nd5 Bh3 c8Q g4 Qa6 Qa5 Nf4 Bd6 Bb5+ Kf8 Nd5 Kg7 Qb4 Ne7 Rf5 Nc8 Bf1 Nc6 Qab6 Qa6 Nf3 g1N Nf6 N8a7 Qb8 Bg2 Ne5 Nf3 Nc4 Nh4 Ke2 d1N Bd2 Rc8 Rf3 Kh8 Ne8 Rc7 Rf6 d3+ Ke1 Rc8 Ne3 Nbc3 Rc1 a1R Qc5 Na2 Bb4 Rd8 Rc4 d2+ Ke2 Bf8 Qe7 Rd3 Rd4 Rc1 Rd8 Rcc3 Qc5 Bd6 Rc8 Bh1 Bh3 Bg2 Nc7+ Kg7 h8N Kh7 Ng6 Rb3 Nf8+ Kh8 Ne8 Rbc3 Nc4 Rg3 Nd7 Rcd3 Nde5 Ne3 Nb6 d1R Nbc4 Rf1 Rd8 Nd1 Ne3 Rg1 Qbb6 Rc8 Qbb5 Rc7 Ra8 Rc8 Qb8 Rd8 Ng7 Rg8 Ne8 Bc7 Qe7 Bd6 Qf8 Bf1+
1n1Q1N2/3P1p2/N1b5/1P1q1r1n/2b2N1b/r1kp1QR1/1b1p2RB/2b1qBbK w - - 0 1 illegal: No proof kernel
n1NnrQ2/K5Q1/R1r5/p1b2pnR/PPn1r3/B3B1Rp/4b2k/2Nb1r1q w - - 0 1 legal: proof: h4 d5 f4 b5 c4 dxc4 h5 e5 h6 exf4 e3 c3 Nf3 c2 Bc4 bxc4 Ng1 gxh6 Qg4 h5 Qd1 h4 Ke2 Ke7 b4 Kd6 d4 c5 a4 a5 g4 h5 d5 Ke5 e4 f3+ Ke3 h3 d6 h2 g5 h4 g6 h3 g7 c3 d7 c4 Qf1 f2 Ne2 Bc5+ Nd4 Na6 Ra3 Rh4 Qg1 f1B Bd2 c1R Qg2 c2 Rd3 c3 Rg1 h1N Na3 Ne7 g8R Nc7 Nb5 Nc6 Rg6 Nf2 Nd6 Be2 Rd1 Qf8 d8B Bcg4 Bg5 Re8 Nc8 Nd8 Ra6 Na8 Re1 Ra1 Bc1 f5 Ba3 c1N Rg1 c2 Bh6 Be7 Nb3 Bc5+ Rd4 Ncd3 Nc1 Bh5 Qg7+ Qf6 Rg3 Nb2 Qg6 Qc6 Qg7+ Ke6 e5 Ne4 Bg5 Bd1 Bf4 Nc4+ Kd3 Ng5 Be3 Rb1 Rf4 Kd5 e6 Bhe2+ Kc3 Ra1 e7 Qb7 Re4 Rf4 Ree6 Re4 Rh6 Qc6 Rh5 Ke6 Qf7+ Ke5 Qg7+ Qf6 Bg1 Kf4+ Kb3 Qc6 Kc3 Rh8 e8Q Rb1 Qee7 Re8 Qef8 Qd5 Rd3 Ra1 Be3+ Kg3 Kb3 Kh2 Rc3 R4e6 Rd3 Qh1 Kc3 Be7 Kd4 Re4+ Kd5 Bc5 Rb3 Nde6 Kc6 Rb1 Kb7 Ra1 Nd3 c1R Kb8 Rc2 Nc1 Nd8 Bf2 Rd2 Rg3 Rd6 Bd4 Rc6 Be3 Bc2 Na2 Rf1 Nc1 Bd6+ Ka7 Bcd1 Bb2 Be7 Ba3 Bc5+
1Rr1K2n/b3NrR1/4p1n1/3pP1nP/kN1q3n/1r3B1p/b2Q2Qb/1B2R1b1 w - - 0 1 illegal: No proof kernel
7n/1bQRr3/1pRN1Q1B/1P2b1B1/k1b5/n1r1N1PK/1npn2p1/1b1r2Nq w - - 0 1 illegal: No possible last move
QK6/1N1b1b1k/1pQ1r2n/np1Br1Pq/1NPRnrB1/1R2r3/1b1p4/4B1b1 w - - 0 1 legal: proof: e4 c5 b4 f5 h4 fxe4 d4 cxd4 b5 g5 b6 gxh4 Qd2 axb6 Qd1 b5 Kd2 Kf7 g4 Kg7 f4 d5 a4 e5 c4 h5 f5 h3 f6+ Kh7 a5 e3+ Kd3 e2 f7 e1R a6 h4 g5 b6 a7 h2 Qd2 e4+ Kc2 h3 Kb3 e3 Ra4 d3 Kc3 d4+ Kb3 e2 Ra2 Nc6 Nf3 Nh6 Na3 Qe8 Ne5 Bg7 f8Q Bd7 Rb2 Qh5 Nf7 Re8 a8B Re6 Nd6 Na5+ Kb4 Re5 Rb3 Re3 Qf6 Rhe8 Nb7 R8e5 Qa2 d2 Nc2 d1N Bd2 d3 Qc6 Nf2 Kc3 Ne4+ Kd4 Bf6 Rg1 h1B Rg4 h2 Bh3 Rf1 Bc3 e1B Nb4 Bf2 Be1 d2 Qa4 Re6+ Kd5 Bg1 Rh4 Bf3 Bg4 h1R Qa2 Bd1 Qa4 Bb2 Qa1 Nc5 Qa2 R6e5+ Kd6 Ne4+ Kc7 Rf4 Kb8 Rhh3 Rd3 Rh2 Rh3 Rhf2 Rd4 Rf6 Qa3 R2f4 Rg3 Rfe6 Qa1 Re2 Rb3 Re3 Nc5 Bc2 Qc7 Nf6 Qa3 Bg6 Bd5 Ne4 Qc6 Nb7 Qa8 Na5 Nb7 Bf7
1K3k2/1N4rP/n7/R2N2Q1/b1q1R1rb/RBBbQp1r/1Pn2p1p/2b1nn2 w - - 0 1 illegal: No proof kernel
n1q2B1n/NRpk1r1P/1p1r3b/1K3RbP/6NQ/Qb1r1pNn/B4b2/7n w - - 0 1 illegal: Other
bn4Nb/Pp4bR/3k3N/1p2rRpr/Bnn5/Q1Kbr3/4PQr1/2N2qB1 w - - 0 1 illegal: Other
R1r5/pk2B2n/b3Bb2/2nN2Q1/bbqr1rK1/p1Pp1rN1/n1P1R1Q1/7N w - - 0 1 illegal: Other
3Q1b1q/4Q3/3N1qr1/pb1RbN1n/n5Pp/1kB1PBQr/p1b5/4rrKR w - - 0 1 illegal: No possible last move, all moves rejected
6R1/Nq2B3/rrb3N1/p1n1p1n1/1b1q3R/B1k2p2/r1P1P1KQ/r2nnQ1N w - - 0 1 illegal: No possible last move
K2n1n2/qQ2N3/b3Np1P/r7/R1n2P1b/4rrQn/p1rq1p1B/kB2R2N w - - 0 1 legal: proof: f4 b5 g4 c5 a4 bxa4 d4 cxd4 g5 e5 g6 e4 Qd2 hxg6 Qa5 g5 Qc3 g4 Qf3 exf3 Kf2 Ke7 h4 Ke6 c4 a5 e4 g5 b4 d5 c5 a3 h5 g3+ Ke1 g2 Kd2 g4 Kd3 g3 e5 a4 c6 Nd7 h6 Ra5 b5 Ba6 c7 Ne7 c8Q Nc6 Rh3 Be7 Qb7 Bh4 Nc3 f6 Rh2 Re8 Nge2 g1Q Qc8 g2 Qa8 Nf8 Ne4 Qf2 Bd2 g1N Be1 Nh3 N4g3 Qd6 Rc1 Nd8 Nh1 Qc7 Rc4 Qa7 b6 Re7 b7 Rc7 Kc2 d3+ Kc3 d2 Kb4 d1N b8N d4 Nc6 Kd5 e6 d3 e7 d2 e8Q Nb2 Ned4 d1R Qe3 Rd3 Ne6 Qc2 Re2 Qd2+ Rc3 Rc8 Bg3 f2 Bh2 Rc7 Qg3 Rf3 Re1 Re7 Ned4 Ree3 Ne6 Nc4 Qb8 Ke4 Qc8 Kd5 Ne7+ Ke4 Ng7 Kd4 Bd3 a2 Qb8 a1R Bh7 Qd1 Ra3 Rc1 Bb1 Rc2 Ne6+ Ke4 Ra1 Kd3 Qb5 a3 Qb6 Ra4+ Kc5 Kc3 Ra2 Qd2 Ra1 Nb7+ Kc6 Ra5 Kc7 Nd8+ Qb7 Qc5+ Kb8 Qb6 Ra2 Qc5 Rb2 a2 Rb4 Qb6 Ra4 Kb2 Ka8 Ka1 Qg5 Qbd4 Qg3 Qa7+
2N4Q/1bn3R1/1PBb3b/k1brqq1P/1Np5/1p4p1/1Kn3r1/rQrRR1B1 w - - 0 1 illegal: No proof kernel
2knq1R1/Bq6/1P2b3/b1p2BQq/r1r2pq1/3BNn1R/4pQP1/1Nn2nK1 w - - 0 1 illegal: No proof kernel
r2K4/Qn1b3P/1pRpk1pr/B6Q/1r1nqP2/r1bB2qR/2q4R/qN2N3 w - - 0 1 illegal: No possible last move
1QB2n2/1r4pK/1n1nr3/2bQp3/bnN1Pqq1/1PN2BQ1/5Rpb/1R1b3k w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Bh6 h4 Bd2 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 Kd2 Kf7 Kd3 Kg6 Ke4 Kg5 f4+ Kh4 Kf5 a5 Kg6 e5 e4 d5 c4 d3 c5 a3 b3 d4 f5 d2 c6 a2 c7 d3 f6 a4 f7 a3 h3 g2 Be2 Kg3 h4 Ra7 h5 Nf6 h6 Nbd7 h7 Nd5 Qc1 d1B Rh2 d2 Bb5 Rb7 Be2 Qh4 Qc2 N5b6 Qc1 Bc5 Rh1 Re8 h8Q Re6+ Kf5 Nf8 Qh7 Bd7 c8B Ba4 Nh3 g1B Qc4 Kg2 Qd5 g3 Qg6 Bh2 Rf1 Qh6 Rf2+ Kh1 Ng1 g2 Nc3 Qh4 Rb1 a1Q Qc6 a2 Qg3 Qb2 Nf3 a1N Qd7 Nc2 Qd6 Nb4 Qd5 Ng6 f8Q Qc1 Qe8 Nf8 Qb5 Bc2 Qe8 d1N Nd2 Nb2 Bf3 Bd1 Nc4 Qe3 Qed8 Qe2 Qc7 Qh6 Qb8 Qhd2 Ne3 N2c4 Kg5 Nd6 Kh5 Bb5 Nc4 Qf4 Bg4 Qff3 Kg5 Ba4 Kh5 Re8 Kg5 Qf4+ Kh5 Nfd7 Kg6 Re6+ Kh7 Qef3 Qh3 Q3g3 Bf3 Qgg4 Qg3 Nf8+
1n2qnQb/5pB1/PB1r1NQ1/1N2P2b/kb2p1R1/8/2qrrpr1/1bK1R2B w - - 0 1 illegal: No proof kernel
1Kb1bR1q/4QpP1/2pbpB1n/RPk1b1n1/1r5q/q1N1q1Q1/2Br4/4N1R1 w - - 0 1 illegal: No possible last move, all moves rejected
rk2B3/4P3/1nBK4/1rQ1pRnp/1r1bn1Qq/rP1R1b2/1p3q2/3N1NBn w - - 0 1 illegal: No proof kernel
2b1n1n1/2qPq3/N2B3r/q1Q5/pKbbPpq1/1b1rkBp1/1Q2N1RR/Q7 w - - 0 1 illegal: No possible last move
KqB5/Q2P1P2/pq1r1pq1/1R1r2b1/Np1r3B/R2Q1bn1/3q2k1/1Q1r2nN w - - 0 1 illegal: No proof kernel
3K4/1Nnpr1qp/R2qn3/1N1P1b2/p1Q1Br1r/1PQq4/1br1R3/1qk2BB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 f5 gxh4 f6 c5 b3 c4 d3 c3 Qd2 exf6 Qh6 f5 Qd6 f4 Qa3 Be7 Qa2 Bf8 Qb2 cxb2 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kd4 a5 g4 a3 c4 f3 e4 f4 c5 a4 c6 f2 e5 h3 g5 Kf5 Kd5 h2 d4 f3 g6 a2 e6 Nh6 c7 Bb7+ Kc4 Ke4 Kb5 Bg7 Kb6 Qf6 c8B Na6 Ne2 Kd3 Be3 Kc2 Nec3 Re8 Nb5 Nf5 Nd2 b1Q Ne4 Re7 Ned6 Be4 Nb7 Nc7 Rg1 Bh8 g7 h1R g8Q Rh4 Rg6 Ng7 Qf7 Bf5 Rh6 Qb2 Re1 a1Q Re2+ Kd1 Qg8 Qab1 Qf7 Qe5 Qf6 Rb8 d5 Qg3 Qc3 Qf4 Bg2 f1Q Bg1 f2 Be4 Qh3 Rf6 f1R Rg6 Qhd3 Rh6 Rf7 e7 Nge6 e8Q Re7 Qc4 Bc3 Qh8 Q2a1 Rg6 Bb2 Qhc3 Ra8 Nd8 Rf2 Ba6 Rc8 Nb7 Qd6+ Qc6 Ne8 Qd4 Qd2 Qb4 Bc1 Na3 Nf8 Bb5 Qb8 Re3 Rff4 Bf1 Qdd3 Re2 Qg7 Nb5 Bb2 Qf6 Rc2 Qc4 Kc1 Qfc3 Qbe5 Rf6 Nd6 Kc7 Ne8+ Kd8 Nc7 Rc6 Qd6 Ra6 Nfe6+
8/2pNPRqp/bPKRn2Q/3p2bq/k1r1Br1r/5QB1/2rB4/qN2n2q w - - 0 1 illegal: No proof kernel
kr3qrB/1p4rq/2rB4/b1N5/3Bp1pK/Qb2RP1Q/nPRb2N1/1b4n1 w - - 0 1 illegal: No proof kernel
2Nn1Rq1/N3b2k/N2p2pr/2nP2K1/prq2BP1/1B6/b1p2Q2/QR3nqb w - - 0 1 illegal: No possible last move
bqqr3N/2Q1Br1r/p1p4k/2Qn3n/n3q2K/4p3/1PPNNp2/1BbR3R w - - 0 1 legal: proof: f4 g5 e4 b5 a4 bxa4 h4 gxh4 e5 d6 Qe2 dxe5 Qh5 exf4 Qd1 f3 Kf2 h5 g4 f5 d4 Kf7 d5 Kg7 g5 e5 d6 a3 g6 h3 Kg3 f4+ Kf2 h2 d7 e4 Bd3 c6 Qe2 a2 Na3 h4 Qf1 h3 Bb5 Rh7 Ba4 Na6 Nc4 Kh6 g7 Nc5 Rb1 a1Q Qe2 Ne7 g8Q Nd5 Qd2 Bb7 Qd4 Qc8 Bb5 Na4 Kf1 f2 Ke2 f1R d8N e3 Nd2 Bb4 Qg3 a6 Bd3 Qa2 Bc4 Qb3 Qc5 Rb8 Ra1 Ba8 Rb1 Bc3 Ra1 Qb4 Ba2 Qb3 Bb1 f3+ Kd3 Rf2 Ne2 Qbb7 Rd1 h1Q Ke4 h2 Qc7 Bb4 Ke5 Qg2 Ke4 h1N Ke5 Ng3 Nf7+ Kh5 Nh8 Kh6 Rh1+ Nh5 Rd1 Rd7 Kf5 Rh7+ Qd7 Qh1 Kg4 Qg2+ Kh4 Qg6 Qc7 Qe4+ Nf4 Qb5 Nc4 Qbb7 Bd2 Rf1 Be1 Bd2 Bf2 Bc1 Nd2 Qf8 Be1 Rd8 Bg3 Qc8 Bh2 Qee8 Ne2 Qb8 Bd6 Qe4+ Nf4 Qff5 Be7 Rf2 Rh1 Qfc8 Rd1 Rg2 Rh1 f2 Rd1 Rgg7 Rh1 Qef5 Ne2 Qe4+ Qf4+ Rg5 Ba2 Rf7 Nb3 Bd2 Rad1 Bc1 Bb1 Qf3 Qh2 Rgg7 Nd2 Rh7 Qc7 Qe4+
N1nk1BNK/qr3n1P/2p4Q/2Qn3p/b1BP2b1/4q1R1/pp5q/1R1Nb1r1 w - - 0 1 illegal: No proof kernel
1Rr1B3/1n3NNP/brpn3Q/n2K3p/1bRp4/NQq3p1/4Pr1b/2B1kq2 w - - 0 1 illegal: No possible last move, all moves rejected
kN2q1n1/1rQPb3/p1nB2bB/N6p/6b1/N1pp1nrR/3P3q/1r2QKR1 w - - 0 1 illegal: Other
5bQN/1rp3Pq/1B1p4/1P1RnQ2/N1q1qp1B/k2p1nn1/b3B3/r2r1RK1 w - - 0 1 illegal: No proof kernel
1nQ5/1pQ3pp/2n1n2q/1B1rp1Pb/q1P2b1R/1r1Q1N2/1k1Kq2B/4RN1r w - - 0 1 illegal: No possible last move
2NRn3/1p2Qpp1/P2R2bB/n1r3Qr/b5Kp/kqB2Q1N/2qr3P/n5b1 w - - 0 1 illegal: No proof kernel
rRQb3r/1R3q2/1K6/2ppb1n1/PBBR1rQ1/p4b2/2N1PbNp/bn5k w - - 0 1 illegal: No proof kernel
2B1n3/5P2/1RBrp3/N2bkp1K/q1b2p1b/3nBpP1/Qbn1r2R/1b3NQ1 w - - 0 1 illegal: No proof kernel
r1r1b3/3B1p2/1kN1P3/Np1b1P2/p1bpb3/B1Q3b1/1nRKnQ2/qQnR4 w - - 0 1 legal: proof: d4 b5 h4 e5 a4 exd4 b4 bxa4 b5 g5 b6 gxh4 Ra2 cxb6 Ra1 b5 f4 a5 g4 d5 e4 Kd7 c4 Kc6 g5 h5 e5 a3 e6 h3 c5 a4 f5 d3 g6 d2+ Ke2 h2 g7 a2 Bb2 h4 Nc3 h3 Nf3 Na6 Nh4 Bd6 Qc2 d1B+ Ke1 Bg3+ Kd2 Bd7 Nb1 Nb4 Qc1 Bb3 Na3 Be8 Qb1 Bc4 Bg2 Nf6 g8Q Nd3 Rc1 h1B Nf3 h2 Rc2 Nh5 Ne5+ Kb7 c6+ Kb6 c7 Nhf4 c8Q Qf6 Nc6 Ne2 Bc1 Nb2 Qg5 Qe5 Qe3+ d4 Bd5 Be4 Qf2 h1B Qc7+ Kc5 Qa5 Rf8 Qc3 Kb6 Nb4 Rc8 Bc6 Bed5 Bd7 Bhe4 Nc6 Qf4+ Qfe3 Qf1 Qf2 Nd3 Qbb4 Nb2 Rb1 a1N Qbb3 Nd3 Bb2 Qh1 Rd1 Qg1 Bc1 Nb2 Qa2 Rg8 Qb1 Ra8 Qff3 Nd3 Qf1 Ba2 Qf2 Qh1 Re1 Nb3+ Kd1 Rh8 Qba1 Rf8 Nb1 Rh8 Ba3 Rf8 Rf1 Nb2+ Ke1 Qg1 Nd2 Rg8 Nf3 Qh1 Na5 Qg1 Ne5 Qh1 Bc8 Bd7 Nec6 Rd8 Qd1 Be8 Bd7 Rdc8 Rg1 Nc5 Qa1 Bac4 Kd2 Ncd3 Qd1 Qg2 Rh1 Qf1 Qa1 Qb1 Rd1 Ndc1 Qa2 Qa1 Qab3 Nbd3 Qb1 Nb2
3q3b/2NbPnbP/N1rn1p2/n3p1p1/RQn4k/B3Qp2/4r1R1/1KnB1B2 w - - 0 1 illegal: No proof kernel
3RnQ2/rpK1bB1p/qn5Q/n2P1r2/1rPpN1R1/N3r1p1/4k1rQ/4B2b w - - 0 1 illegal: No proof kernel
2bb2q1/p1n2Q2/2Pr1pp1/P1R1r1pn/1b2R2b/Q3K2N/1B2r2b/3kN1RB w - - 0 1 illegal: No proof kernel
b1KQ1N2/4B2R/pP6/R4r1N/1r1qr1p1/PB1p3b/Q1p1knnn/2R2rb1 w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 h5 c4 hxg4 c5 b6 Qd3 bxc5 Qd2 cxd4 Qd1 d3 Kd2 Ke7 Kc3 Ke6 Kc4 Ke5 Kb5 Ke4 b4 g5 h4 c5 a3 d5 h5 f5 h6 a6+ Ka4 g3 h7 d4 b5 d2 e3 g4 b6 g2 Ka5 d3 Rh3 c4 Bb2 f3 Qe1 d1N Bf6 f4 Qc3 f2 Be7 f3 Ne2 g1R Bg2 f1B Qb3 c3 Nf4 c2 Rh5 Qd4 Ne6 Nf2 Qa2 Bb7 Rb5 Bh6 Nf8 Nf6 Rh5 Rg8 h8R Nbd7 Rh7 Re8 Rc5 Nd5 Nc3+ Ke5 e4 Kf4 e5 Ke3 e6 Rg5 Bh1 Ba8 Ne4 Rf5 Ng3 Nf4 Rc1 Ne5 Nh5 Ke2 Rd5 Bh3 Rb5 Qd5 Kb4 Ng2 Ra5 Qe4+ Kc5 Be3+ Kd6 Qd4+ Kc7 Re1 Bg5 Rd8 e7 Re8 Ra1 Rb1 Bh4 Rb4 Rc1 Nd1 Bf6 f2 Bg5 f1R Bh4 Nf4 Bd5 Nf3 Bb3 Nf2 Bg5 Nh2 Bh4 Rd8 e8Q Ng2 Be7 Rdd5 Kc8 Rde5 Qd8 Re4 Ba4 Nd1 Bb3 Bg1 Bc5 Nf2 Bd6 Re1 Be7 Rf1
2r1r3/1r3R1P/Q5Rb/p5Q1/n1pP1qbp/kB1pN2n/n7/N1NKB1nb w - - 0 1 illegal: No proof kernel
1b1nr3/2b1N1pQ/N1pk1rP1/4p2n/3PRB2/2rQpq1b/1B6/1r1Nn1RK w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 e5 dxc4 g5 f6 Bh3 fxe5 Bf5 e4 Bg4 hxg4 Kf1 Kd7 Kg2 b5 h4 e5 a4 g3 f4 b3 f5 b4 f6 c3 d3 b2 h5 b3 a5 c2 f7 Nf6 h6 Kd6 a6 Nh5 h7 Nc6 g6 Qf6 a7 Nd8 Bf4 c1R Nc3 b1R Nge2 b2 Nd4 c6 Re1 Bh3+ Kh1 Rb8 a8N g2+ Kh2 g1B+ Kh1 Be7 Nc7 Re8 f8B Bf2 h8Q e3 Qh7 Bh4 Qd2 Rb7 Nd1 Rc3 Rg1 Qf5 Bg5 Be1 Na6 Qf3+ Qg2 Rb8 Bf4 Rb4 Ra4 Bd2 Nf2 Rf1 Nd1 b1N Qh6 Rbb3 Qh7 Na3 Rc4 Nc2 Nf5+ Ke6 Rd4 Ne1 Re4 Bd6 d4 Bb8 Ba3 Rb1 Bb2 Rf2 Ne7 Kd6 Qh8 Rb3 Qh7 Ba5 Bc3 Bac7 Bb2 Qg3 Qf3 Rc3 Qe2 Qg4 Qd3 Qg3 Bh6 Rf6 Bf4 Qf3+
2r1n2n/3q1Rpr/bpR1Q3/1P2p1kP/1BQn1NB1/5rN1/1K2prb1/b4Q2 w - - 0 1 illegal: No possible last move, all moves rejected
qBRr4/b2p4/B1NP2pp/3R1n1b/4nKPN/bNk1p1nn/Q1r5/5r1Q w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 b4 bxc4 h5 c3 b5 a6 h6 axb5 Na3 Ra6 Nb1 Rxh6 Qf3 Rh4 Qd1 Rh2 Ke2 Kf7 Ke3 Ke6 a4 Kd5 f4 c5 d4 e5 g3 c2 a5 h6 f5 g6 a6 c4 a7 b4 a8N b3 f6 c3 f7 b2 Bb5 Nf6 Na3 b1R Ba4 Bb7 Qh5 Nc6 Qg5 Bc5 f8Q Ne7 Qh5 Ba7 Nb5 Kc4 Nac7 Qa8 Ne6 Rd2 Qb8 Rd8 Nf3 Bd5 Bb2 c1B Nh4 c2 Nc5 Bb7 Bc3 Ba3 d5 c1N Nd4 Rc2 Ncb3 Ne2 Rd1 Bc6 Rd2 Rf1 Rc1 Bb7 Bb4 Ba6 Bd6 Kc3 Bc7 Bc4 d6 Be6 Ra1 Bg4 Bb5 Bf3 Ba6 Bg4 Qg5 Bh5 g4 Ng3 Qc8 Nh1 Qb7 Nf5+ Ke2 e3 Rc1 e4 Nc6 Rf4 Bb8 Nhg3+ Kd1 Rf3 Rd5 e2+ Ke1 Re3 Kf2 Rf3+ Kg2 e1N+ Kh3 Rf1 Qd2+ Kb2 Qf2 Nd3 Kg2 e3 Kf3 Re1 Qd2 Nf2 Kf4 N6e4 Qa5 Bb4 Qa2+ Kc3 Qb5 Bbc5 Qf1 Ba3 Qh1 Rf1 Rcd1 Bc1 R1d4 Bb2 Rb4 Bc1 Rb7 Bb2 Rc7 Ba3 Rc8 Nh3+
1R1B2r1/1p1q1Q1b/2nbr1Q1/1r1B1pK1/1nb2pP1/nkp5/1P3NQ1/2rR1N2 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 a5 d5 a6 dxc4 Qa4+ Nc6 Qd1 Nb4 Nc3 Nxa6 Nb1 Nb4 Qb3 Na2 Qc2 Bf5 Qd1 Bc8 Kf2 Kd7 Kf3 Kc6 e4 Kb5 g4 Kb4 d4 c5 d5 a5 d6 h5 d7 h3 e5 a4 e6 a3 e7 h4 e8Q c3 Qe5 c4 Qc2 h2 Be2 h3 Qd5 Ra6 Qe5 Re6 Qh7 c2 Ke4 c3 Kf5 Bd6 Bc4 Ne7+ Kg5 Rg8+ Qeg7 Nc6+ Kh5 f6 Bd2 c1R Be1 Qe7 d8Q Qd7 Bd5 Ka4 Nd2 Nab4 Qg5 a2 Rb1 a1N Qf7 Nac2 Bh4 Na3 Qgg6 f5 Nc4 Kb3 Kg5 Rce1 Rd1 R1e5 Be4 Rb5 Ne3 Qc7 Bg2 Bd7 Nf1 Be8 Be4 Qd7 Qb6 Rd5 Qf2 Rb5 Qh7 Bf7 Qg2 Be8 Kh6 Bf7 Bd8 Be8 Kg5 Bf7 Qgg7 Bg6 Qh5 Bh7 Qhg6 Nd5 Q7f7 Ndb4 Ne2 Nac2 Neg3 Na3 Rg1 h1B Bd5+ Nc4 Ne4 h2 Qd2 Bg2 Nf2 h1R Ra1 Be4 Ra8 Bd3 Rb8 Be2 Nh3 Bd3 Qg2 Be2 Nf2 Bd3 Be4 Na3 Bd5+ Bc4 Nd2+ Ka2 Rd1 Rhe1 Nf1 Kb3 Rd2 Rb1 Rd1 Rc1
Q1r5/6Kn/2B2pRB/4QbR1/pPp2r2/krq3Pr/1rp2n2/Nq1RbN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 h5 b3 c5 g3 h3 d5 h2 d6 f6+ Kd5 c3 e5 a3 d7 h4 Ke6 a2 Kf7 a4 e6 f3 e7 c2 e8R f2 Bh3 f1R Qe2 c4 Qe5 Nh6+ Kg6 Qa5 d8Q Bf5+ Kh5 Ng4+ Bh6 Nf2 Nd2 Ka3 Re7 Nd7 Ne2 Rb8 Nc1 Qc3 Bg4 h3 Rb1 a1Q Rg7 Bb4 Rg6 Nf8 Bf3 Nh7 Bc6 Qab2 Qda5 Rhc8 Qa8 Qa1 Rg1 h1R Rb2 h2 Rb1 Rd1 Nf1 Rd4 Rb2 Rf4 Rb1 Qe3 Rb2 Be1 Rb1 Rd8 b4 Qec3 Nb3 Rbc8 Rd1 Qb1 Na1 Rd3 Rg2 Rg1 Rg5 h1R+ Rh2 Re3 Rh4 Rh3 Rg6 Rgh1 Rg5 Be6 Kg6 Bf5+ Kg7 Qcb2 Qeb8 Rb3 Rhg4 Qc3 Qe5 Bd3 Rg6 Qc1 Ne3 Bf5 Rd8 Bd2 Rd4 Rd1 Rd7 Be1 Nf1 Q1b2 Rd4 Rb1 R4g5 Qc1 Rd5 R1b2 Rd1 Qb1
2QQ1B2/rq2p3/1pPp1Rq1/n3P1q1/2n1p1B1/2qb2R1/q3Nb2/1kNr1N1K w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 Qe2 cxd4 Qe3 f5 Qe4 fxe4 c4 Kf7 a4 Ke6 g4 h5 f4 d6 Kf2 h3 g5 b3 c5 Kd5 g6 h4 a5 b2 a6 d3 a7 Kc4 g7 Kb3 f5 Kc2 f6 b6 f7 d2 Ra6 d1Q Bg2 h2 Nf3 h3 Ra2 Qc7 Bg5 Qc1 Bh4 Nf6 g8Q Ba6 Ng1 Qg5 Bf3 Nc6 Bg4 Bd3 Ne2 Bh6 f8N Na5 c6 Nd5 Ne6 Ne3 Nd2 Nec4 Qd8 Qb7 Rf1 h1Q N6f4 h2 Ra3 b1Q Nc1 Qa2 Nfe2 Kb2 Kg3 Qg1+ Kh3 Qd4 Kg2 Qc3 Rf6 Rg8 Nf1 Kb1 Bf2 Rf8 Be3 h1Q+ Kf2 Qhh5 Kg1 Qhg6 Kh1 Q5f5 Bd2 Be3 Qc8 Bd4 Bh6 Bf2 Bg7 Rf7 Bf8 Qfg5 Qd8 Rc8 a8Q Rc7 Qac8 Rd7 Re6 Rf3 Rf6 Re3 Neg3 Re1 Nge2 Rd1 Qa8 Qa6 Qac8 Ra7 Rb3+ Qcb2 Rc3 Qb7 Rb3 Bc2 Rd3 Qc3 Rg3 Bd3
n4R1N/pQ2p3/1nnqq3/2KpN2R/P2Bb2b/n6P/r1pQBnBk/2r5 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 c4 f5 g5 fxe4 c5 h6 Qg4 hxg5 Qe2 g4 Qc4 bxc4 Ke2 Kf7 a4 Kg6 f4 Kh5 b4 Kh4 b5 d5 f5 g5 c6 e3 b6 c3 Kd3 e2 b7 e1N+ Ke2 g3 c7 d3+ Ke3 d2 Kd4 d1N f6 g2 f7 g4 Ne2 Kh3 Bg5 g3 Nd2 Nd7 b8Q Nf2 Rg1 Bh6 f8Q Nb6 Be3 Bf5 c8B Bg5 Qe5 Nf6 Qf7 Qd6 Qfe6 Ne8 Qg8 Nc7 Ba6 Be4 Qf4 Rc8 Nc4 Bh4 Rh1 Nca8 Ne5 Qe6 Qd8 Rf8 Qc7 Nc2+ Kc5 Na3 Qg5 Rf3 Bd4 Re3 Nc1 Re2 Ncd3 Ra2 Qc6 Rc7 Ng6 Rc8 Be2 g1N Qd2 g2 Rf1 Nf3 Nde5 g1Q Nh8 Qgg6 Bac4 c2 Bb5 Rg8 Qb7 Qgf6 Bbc4 Rg1 Bb5 Ng5 Bbd3 Nf7 Bf3 Nd8 Bde2 Ng4 Rf2 Rc1 Rff1 Bd3 Be4 Nc6 Rf5 Qh6 Rh5 Qhf6 Rf1 Qh6 Rf8 Nf2 Nf3 Kg2 h3 Kh1 Ne5+ Kh2 Bh1 Be4 Bg2 Qf4 Nd3 Qb8 Ne5 Qbd6#
3n1bRK/r6b/r1Bn1N2/4k1p1/Ppp3Bp/brR4q/2Q3P1/NBQq2r1 w - - 0 1 illegal: No proof kernel
6qn/Q3nkBb/2N2Br1/2Rpr2p/3KQR1r/1p4bn/PPN1R1qp/5r2 w - - 0 1 illegal: No proof kernel
n3N2r/K4k1n/3B1p1p/4r1B1/pRbRQ3/bq1nPP1q/1pN3b1/2R3Qn w - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 b5 d4 bxa4 e3 e5 b5 exd4 b6 c6 Bb5 cxb5 Kd2 a5 Kd3 d5 g4 h6 c4 h3 g5 a3 f3 h2 g6 a4 g7 a2 b7 b4 c5 b3 c6 b2 c7 Bh3 c8Q Na6 b8B Bg2 Na3 Nc7 Qc2 Nf6 g8R Ra5 Ne2 Na8 Rd1 h1N Nb5 Nh7 Bd6 f6 Nc7+ Kf7 Rg4 Qd7 Bd2 Be7 Rf4 Qh3 Rac1 a1N Be1 Nb3 Ne8 Rb5 Bh4 Nc5+ Kd2 d3 Kc3 d2 Kd4 Ra5 Qe4 Nd3 Bg5 Rb5 Qg4 Bf8 Kc3 d4+ Kc4 Re5 Qg3 Be7 Qf2 Bf8 Qg1 Be7 Ba3 Bc5 Kb5 Bb4+ Ka6 Bd6 Re1 d1B Ka7 Bb3 Red1 Bc4 Rh4 Bf8 Bd6 Be7 Bc7 Ba3 Bd6 Ndf2 Rg4 d3 Nd4 d2 Nc2 Nd3 Qf5 Bb3 Rb4 Bd5 Qe4 Bc4 Re1 d1Q Re2 Qf1 Rd2 Qe1 Rdd1 Qc3 Rd2 Qb3 Rdd1 Ndf2 Rd4 Nd3
1nb1qBQ1/5NbN/Rp1rq3/2PnBbp1/2q4Q/1Pqpk1pN/R5K1/5r2 w - - 0 1 illegal: No extended proof kernel
2b1N1K1/5rn1/pq5B/Q1q2r2/npppB3/k2PQ1RR/PN3qq1/b4Nb1 w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 hxg4 c5 b6 Qa4 bxc5 Qd1 cxb4 Kf2 c5 h4 f5 e4 g5 h5 d5 e5 Kd7 e6+ Kc6 d3 Kb5 e7 f3 Kg3 a6 e8Q+ Nd7 h6 f4+ Kh2 g3+ Kh3 f2 Kg4 f3 Kh5 g2 Kg6 c4 Kf7 g4 h7 g3 Qb3 Nf6 Be2 f1Q Qb2 Ka4 Bf4 f2 Nd2 Qb6 Rh3 Ra7 Qbe5 Ka3 Bf3 Bg7 Ne2 g1B Be4 g2 Nc3 Nh5 Na4 Nc5+ Qc7 Bd4 Bh6 Ng7 Nb2 Na4 Re1 Rg8 h8N Bc3 Ree3 Rf8+ Ke7 d4 Reg3 Rf5 Nf7 Qe2 Kf8 f1Q Qe6 Qh5 Kg8 Qf2 Nd6 Rb7 Qc5 Rbf7 Nf1 Qg5 Qb5 Qe7 Ne8 Qec5 Nd1 Ba1 Nb2 Bh2 Qe5 g1Q Qa5 Qgg2 Qf4 Bg1 Qc1 Qe5 Qe3 Qec5
QN2R2n/K2B2bQ/p1n1n2p/2BN2q1/2prpRr1/qP3Pq1/k3b3/3Qq3 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc6 g4 Kc5 d4+ Kb4 f3 c5 g5 e5 g6 a3 g7 a2 b3 h6 d5 h3 d6 c3 d7 c2 Qe2 h2 Nd2 Ne7 g8Q Ba6 Qgg2 Ng6 Nc4 Nc6 Nb2 Ka3 Qd1 Be2 Nh3 c4 Nf4 a6 Nd5 Rg8 Qg5 Qc7 d8Q Bg7 Qf5 Nh8 Qh7 Qb8 Rb1 a1N Bh3 Ka2 Bd7 Qd6 Na4 Qa3 Re1 h1Q Nab6 Qh4 Bb2 Qg4 Bd4 Qg3 Bc5 Rc8 Qf8 Rb8 Rh1 Rd8 Rh4 c1Q+ Qd2+ Qc2 Re1 Qcb2 Qd1 Nc2+ Kd2 Qg5+ Rf4 N2d4+ Ke3 Ne6 Qe8 Ra8 Qb8 Qa1 Qa7 Rad8 Qa8 Q1b2 Be8 Qg3 Nd7 Qa5 Nb8 Qba3 Bd7 Qb5 Kd2 e3+ Kc3 Bd3 Rh1 e2 Rh5 e4+ Re5 Ned4 Re8 Ne6+ Kd2 Qba5+ Ke3 e1Q+ Qe2+ Bb2 Bf8 Nc5 Nb6 Q5a4 Bh3 Qf1 Qd1 Qa5 Bf5 Rd5 Bd7 Be2 Be7 Qh1 Bd6 Qh5 Bf8 Rd2 Nd5 Rg4 Bd6 Bg7 Be7 Qg5 Bf8 Ne5 Bd6 Rb2 Kd4 Qae1 Bf8 Nb7 Bb4 Nd8 Kc5 Ne6+ Kb6 Rd2 Ka7 Rd4 Bc5 Nc6+
1bN1r1q1/3Qn2p/n2Qqp2/R3Bb2/P1kb3K/Bp2R2p/1b1n3P/2rN2N1 w - - 0 1 legal: proof: f4 d5 b4 a5 c4 dxc4 e3 axb4 f5 g6 f6 exf6 Bd3 f5 Be2 f4 Bh5 gxh5 Kf2 Ke7 a4 Ke6 d4 Kd5 g4 b5 g5 c5 g6 f3 Kg3 c3 e4+ Kc4 d5 f6 g7 h4+ Kf4 f2 d6 f1N d7 h3 Kg4 b3 e5 b2 e6 c2 e7 b4 e8Q b3 Ra3 Bd6 Qe5 Nd2 Ra1 Ne7 g8N Na6 Qg3 Bb8 Nc3 b1Q Ba3 c1B Qd6 Bb2 Kh4 Qf5 Rc1 Qe6 Rc2 Qf8 d8B Ra7 Bb6 Rc7 Qd7 Rc6 Bc7 Qg7 Be5 Qgf7 Nh6 Re8 Nf5 Qg8 Rc1 Ne4 Q1d6 Nd2 Rf1 Rc7 Nd1 Bd4 Rf2 Kd3 Rf1 c4 Bf4 Bb7 Nf3 c3 Rf2 c2 Re1 c1B Ng1 Nc6 Ne7 Bb2 Nc8 Ne7 Bg3 Rc6 Rf5 Rc1 Re3+ Kc4 Ra5 Be4 Be5 Bf5
1rkNR3/5P2/4np2/1bBR2rb/K2rR2P/b2qn3/pb1Qp1pq/1B2Q1N1 w - - 0 1 illegal: No proof kernel
K1q2NnB/br1Rnp1P/B1RR4/P2rp1Q1/kN3p2/3Q2q1/2b1p1n1/1n2q3 w - - 0 1 illegal: No proof kernel
1Q1bB1Rq/3Pq2r/N1K3p1/QRq2kB1/Ppb1Rn2/3p2r1/1N5p/n2q3n w - - 0 1 illegal: No proof kernel
q5R1/R1bprb2/1P1KQbr1/1p1N4/2BN4/B1P2R1Q/p1p3nn/3kqn1b w - - 0 1 illegal: No proof kernel
5qk1/1r1pp1p1/1K1Rb2n/BPN1Pnbq/Np1R1n1Q/2bQ4/5B2/1Qr1n3 w - - 0 1 illegal: Other
1Q6/1rp1bKn1/bBR2N2/1NPn1k2/2p1p3/1r2R1r1/1Pp1Br2/Q2qqb1Q w - - 0 1 illegal: No proof kernel
2B4b/1bp1K1N1/k1pb1Q1Q/3N1RPB/1p1p3q/bnrPr3/q3qnQ1/2R5 w - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 c4 gxh4 b5 a5 c5 Nh6 c6 bxc6 Ba3 Ng8 Bb4 axb4 Ke2 h5 Ke3 e5 g4 d5 f4 Kd7 a4 d4+ Ke2 h3 d3 h4 f5 h2 a5 h3 b6 e3 Kf3 e4+ Kf4 e2 Ke5 e1B f6 e3 a6 e2 g5 Qe7+ Kf5 Bd2 f7 e1B a7 Qe2 b7 Na6 b8Q Nh6+ Kf6 Ng4+ Kg6 Bg7 f8Q Bg3 Kf7 Bc1 Qd2 Bb7 Qa2 B3e5 Nf3 Ba3 Nc3 Nf2 Nh4 Nc5 Nf5 Nb3 Nd5 Rh4 Qd2 Re4 Rc1 Bh8 Qh6 Re3 Rg1 h1Q Ng7 h2 Qf8 Qe4 Bh3+ Q4g4 Rgf1 h1Q Qfd6+ Kc8 Ke7 Qh2 Qdf6 Qg2 Qc2 Qh2 Bg2 Qgh4 Bf3 Ba6 Bh5 Kb7 Nc3 Kb6 Nd5+ Kb5 Qd2 Bb7 Qc2 Ka6 Qb2 Nh3 Rf5 Nf2 Qd2 Rc8 a8B Rd8 Nb6 Rd5 Qc2 Rc5 Nd5 Qf3 Qe2 Rc3 Qf1 Nh3 Qg1 Qa2 Qg2 Qfe2 Nb6 Nf2 Nd5 Bc8 Bb7+ Kb5 Ba8 Ba6 Bb7 Ka5 Bc8 Bb7 Rg1 Ka6 Rc1 Bd6+
3r1bbN/RKp4B/p1nP2Bp/3p4/P2Nqn2/RNr1Q3/1qQr4/4rk1n w - - 0 1 illegal: No proof kernel
1N2nnR1/2p1P3/1Bbrkb2/bp2p1p1/B3r1r1/r1Q3Q1/PqR1K3/3N2qN w - - 0 1 illegal: No proof kernel
RB6/qP1n2p1/4n1P1/1b1q1pkB/1QN4n/Rp1QrQ1K/1p4Nn/q2r2b1 w - - 0 1 illegal: No proof kernel
1R2Q3/1pnP2n1/b2Qq1rK/2QNp2B/rpr1RP2/kp2Nq2/2nb1n2/4B3 w - - 0 1 illegal: No possible last move, all moves rejected
4n2R/p2BqQ1r/N1RP1r1b/1Qr4r/N4pP1/7k/pBb2bp1/Kn2Qq2 w - - 0 1 illegal: No proof kernel
B2k1KNR/pqR4P/3bp2N/1brQQ3/3P1qr1/1bpq3n/6Bp/b5Bn w - - 0 1 illegal: No possible last move
3K2B1/p4rBp/2bq1Q2/3n2n1/3n1qb1/1QNNk1pR/2p1PrRP/b2Q2n1 w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 dxc4 g5 e5 g6 exd4 Nh3 fxg6 Ng1 g5 Bg2 g4 Bh3 Qd6 Bf1 Qd8 Kd2 Ke7 b4 Kd6 f4 Kd5 b5 Ke4 f5 g5 b6 c5 b7 a3 f6 d3 Kc3 g3 f7 a2 Bd2 g2 Na3 g4 Qc1 g3 Qb2 Bg4 Qb5 Na6 b8Q Nf6 Re1 a1N Qb3 Bg7 f8Q Qd6 Nb1 Nb4 Qbd8 Nac2 Bh6 d2 Rd1 Nd4 Nh3 g1N Nf4 Ke3 Bg2 Rb8 Qf7 Rf8 Bd5 Rb7 Qg6 Rc7 Bg8 Rcf7 Rf1 Bh8 Bg7 d1B Nd3 Bc2 Rf4 Ne4+ Kb2 c3+ Ka3 c4 Ka4 Bd1 Qgf6 c2 Nc3 c1Q Rf5 Bc2 Rh5 Nd5 Rh3 Ng5 Ka5 Qd2 Qd7 Qf4 Ka6 Qd1 Kb7 Qd2 Qb4 Ba4 Qb3 Bb5 Qc7 Be8 Qd7 Qd6 Kc8 Qf4 Nb1 c3 Kd8 c2 Nc3 Qd6 Qg6 Rf2 Qf6 Qf4 Qdd6 Rf7 Qd7 Qd1 Qdd6 Bc6 Qd7 N1f3 Rg1 Qd2 Rg2 Ng1 Nb1 Qb4 Nc3 Qbd6 Bh6 Ne7 Qg7 Qb4 Nc5 Ndf5 Qd1 Nd6 Nd3 Nd5 Ne4 Nb5 Qg6 Be5 Bg7 Ba1 Qf6 Nd4 Nc3 Qbd6+
2b5/p1pQ4/B2R2p1/b1pPbbnP/Q7/2Bq4/rrqN1kN1/2KBR1rn w - - 0 1 legal: proof: f4 b5 g4 e5 c4 exf4 a4 bxa4 c5 h5 c6 hxg4 Bh3 dxc6 Bf1 c5 h4 Kd7 e4 Kd6 d4 f5 Kd2 a3 b4 g3 e5+ Kd5 e6 Ke4 b5 f3 e7 g2 e8B g6 b6 f2 b7 f4 d5 a2 Ba6 f1Q Beb5 f3 Bc4 f2 Bb2 Ne7 Qc2+ Qd3+ Kc1 Ke3 Ba3 f1B Nh3 g1R Nd2 Bg7 Rb1 a1B Nb3 Nbc6 b8Q Bae5 Qh2 Nf5 Qb6 Ncd4 Rb2 Ng3 Qc6 Rb8 Qa4 Nf3 Nd2 Ng5 Nf4 Rh5 Bb3 Bfh3+ Bd1 Bhf5 Qh3 Kf2 Ra2 Rb2 Ng2 Qd7 Ra1 Q7b5 Bb4 Qb7 Ba5 Qbb3 Bc3 Rh8 Qhg4 Ra2 h5 Rf8 Rh3 Nh1 Re3 Rf6 Qd7 Rb6 Qga4 Rb7 Re1 Rb8 Bb2 Bc3 Rb1 Ba5 Bc3 Be5 Rb2 Qbc4 Rb3 Rb7 Ra3 Rbb2 Rb3 Qb5 Rb4 Qbc4 Rb6 Qb3 Rd6 Qbc2+
1n1rR1BQ/K1B3Qr/1Qq2bPp/p2r4/2pP1n2/R3rb2/1r1pk1N1/5Nr1 w - - 0 1 illegal: No proof kernel
2b1n3/2r1BP2/2kqB2p/B1p4Q/1nN1rbrP/p1Rr2QK/r2R2Np/6r1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 e5 g5 e6 g4 Qe2 fxe6 Qf3 e5 Qg3 e4 Qh3 gxh3 f4 Kd7 Kf2 e5 Kg3 a5 b4 c5 d4 h2 f5 e3 d5 c3 d6 c2 f6 e4 f7 e2 b5 e1R b6 h6 b7 e3 Nh3 a3 Nd2 e2 Nc4 a4 Bd2 c1R Ra2 Qc7 Ba5 Ra7 Rd2 a2 Nf4 a1R Kh3 a3 g4 Na6 b8Q Nf6 g5 Rcd1 g6 Rg8 g7 Kc6+ d7 Bd6 Ng2 Bf4 Qb3 Qd6 Qg3 Ra2 Qf3+ Ne4 Qh5 Rc7 Rg1 Nb4 Rh1 Rf8 g8Q Nf6 Qg3 Rg8 Rg1 Rg4 d8B Ne8 Be7 Rb1 Rh1 Red1 Rg1 e1R Be2 Rg8+ Bg4 Re4 Be6 Rg4 Rf1 Rb3 Rf3 Rd3 Re3 Rg1 Rf3 Rdd4 Rc3 Rd3
k3B3/1n1Np2n/pr1P1n1N/2R2PQp/6b1/bQr1r2R/p2r3n/3KB1qN w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kd7 f4 Kc6 b4 Kb7 g4 c5 d5 h5 b5 a3 d6 a2 b6 h3 g5 e3 g6 h2 g7 c3 Bd3 c2 Na3 c4 Qg4 e2 Nb1 c3 Qg6 Nf6 g8Q Bg4 f5 Bh6 Q8g7 Nbd7 Qf8 Nh7 Qgf7 Ndf6 Bf4 c1N Bc4 c2 Na3 Nb3 Bd2 Nc5 Q8g7 Qg8 Rc1 a6 Qgg6 Rc8 Bb5 Ka8 Qg5 Nb7 Nh3 Rc3 Qb3 Re3 Nf2 Qg7 Bc6 Rb8 Nc4 Qg8 Ne5 Bg7 Rf1 h1N Nf7 Ng3 Rh1 Nf1 Rh3 Nh2 Nh6 Bh8 Ba5 Qg7 Kd2 e1R Nh1 Qg6 Be8 Qg8 Rd1 c1R Bb4 Rcc8 Rc1 R1e2+ Kd1 Bg7 Be1 Rcc3 Rc2 Qd5+ Rd2 Qg2 Rd5 Qg1 Rc5 Nd5 Qg6 Bd4 Qg5 Ndf6 Re5 Bc5 Rd5 Ba3 Rc5 Na5 b7+ Ka7 Rd5 Rd8 b8N Ka8 Nc6 Rb8 Ne5 Rb6 Nd7 Nb7 Rc5 Rd2+
2b2K1b/2p1r3/rQpN1qQB/1n4b1/pn2rPrp/1RP5/4B1R1/2kbR2N w - - 0 1 legal: proof: e4 f5 a4 fxe4 h4 b5 h5 bxa4 Qg4 g6 Qg5 gxh5 Qc5 h4 Qc6 dxc6 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 b4 h5 Kg6 e5 Kf7 a5 g4 a3 f4 a2 d3 e3 b5 e4 g5 h3 g6 h4 b6 h2 g7 a4 b7 e2 Nd2 Kc3 d4 e1R d5 e3 d6 e2 d7 Nf6 g8R Nd5 Nc4 Ra6 Nh3 Bh6 Ba3 Bg5 Rb1 a1B Nd6 Kd2 Nf2 Nc3 Rb3 Nb5 Rg6 Bg7 c3 Rg8 Rg1 Kc2 Nh1 Bh8 Re6 Rg6 Rg2 Qf6+ Ke8 Rg7 d8Q Kd2 Bc5 Kc1 Qd7 Rg6 Qh7 Rg7 Qg6 Re7+ Kd8 Rd1 Bd4 e1R Be2 Rd3 Bc5 Rg3 Bd4 Rg4 Be5 Nd7 b8Q Nc5 Qb6 Nd3 Bd4 Nb4 Be5 Qf5 Bg7 Qf7 Bh6 Qf6 Bc4 Re4 Be2 Rd7+ Ke8 Rg7 Ng3 h1B Re7 Qe5 Re6 Re7+ Kf8 Qd4 Rh2 Bg2 Nh1 Bf3 Rg2 Qe5 Bc4 Bd1 Be2 Rc4 Bf3 Qd4 Re1 Qe5 Be2 Re4 Reg1 Qd4 Re1 Qf6+
3r1n1r/1P3QP1/n1B2N1B/bR1Nbp2/1pp1K1Rr/rq1p4/1b6/2Qbk2N w - - 0 1 illegal: No possible last move, all moves rejected
N2n2B1/1p1rRQ1r/R1Pbpb2/2r2P2/4pnrb/3Q2p1/3N4/NKB1k1qb w - - 0 1 illegal: No proof kernel
1n2QRQK/2qpBnn1/1P1b3k/4rPp1/4r1pN/1B1pQ3/3RpbNr/5b2 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Kg6 b4 a5 f4 e5 c4 a3 b5 a4 f5+ Kh5 c5 g5 c6 a2 b6 a3 c7 e3 Kd3 e2 Ke4 e1B Qb3 Ra5 Ne2 Nh6 Nd2 Bf2 Qe3 Bb4 Nf3 Nf7 Nf4+ Kh6 h5 Ba6 c8Q Qc7 Bc4 Bd6 Bb3 Bf1 Nh4 d3 Nfg2 Nd8 Rh2 Ra4+ Kd5 e4 Bd2 Rc4 Bb4 Re8 Rd1 a1N Rd2 a2 Rh1 Nc2 Rh2 Bdg3 Be7 a1R Rh3 Ra2 Rh2 Kh7 h6 Nd4 Rh1 N4e6 Rh3 Kg8 h7+ Kg7 Rh2 Bd6 h8Q+ Kf7 Qh5+ Kg7 Qf7+ Kh6 Qg8 Ng7 Rh1 Be2 Ra1 Rac2 Ra8 Bf1 Bf8 Re6 Be7 Nf7 Qce8 Nd8 Qd4 e3 Qc5 e2 Qe3 Rf4 Ng6 Rf3 N6h4 Rh3 Kd4 Rh2 Kd5 Ba3 Kd4 Rc4+ Kd5 Rd6+ Ke5 Rd5+ Kf6 Bd6 Qef7 Re4 Raa2 Nge6 Ba4 Rde5 Bb3 Nbc6 Ra8 Nb7 Rf8 Nb8 Qe8 Nf4 Qc4 Nh5+ Kf7 Nd8+ Kg8 Ng7 Kh8 Qc8 Qd5 Qc7 Qg8 Nf7+
3NN3/2R3Q1/1Q2nb2/3B1Rpp/1B4pr/1bpKPp1N/n1P3nq/q2k2rr w - - 0 1 illegal: No proof kernel
1R1Bk3/5RQQ/q1P1ppq1/4K1Nn/rBpR2b1/Np2pPr1/4n2b/n2q4 w - - 0 1 illegal: No possible last move, all moves rejected
1r1R3q/1b4qb/p1kN3P/Q3bqpn/7p/Qpp5/B1P1RB1r/K1nNR3 w - - 0 1 illegal: No proof kernel
kq1q1Q2/2Rp1Bqp/pbK3R1/2R1p1nn/4r1N1/2N1P3/3r1pP1/1b2BQr1 w - - 0 1 illegal: Other
1B4qN/1p3N1K/1P2pB1b/pk4Bp/1b1R2nr/Qb2PQ1q/qrn3pR/8 w - - 0 1 legal: proof: g4 f5 h4 d5 c4 dxc4 a4 g5 a5 gxh4 a6 Nxa6 g5 Nb4 Bh3 Na2 Bg4 fxg4 d4 Kd7 Kd2 Kc6 Ke3 h5 Kf4 a5 b4 h3 d5+ Kb5 d6 c5 d7 e6 g6 h2 g7 g3 Na3+ Ka6 b5+ Kb6 Nh3 g2 Ng5 c3 Nf7 Nf6 Kg5 c2 Kg6 c4 g8Q c3 f4 Bb4 f5 Ra6 Bg5 c1B Qf8 Ng4 f6 Rg8+ Kh7 c2 Nh8 Be3 f7 c1Q Qf1 Qb2 Rd1 Rg6 Bf6 Bh6 e3 Rg5 Rd4 Qd2 Rg1 h1Q Qf3 Qh3 Rh1 Rf5 Qe7 Rf4 f8B Qf2 Rh2 Re4 Qg7 Rf4 Bd6 Qg8+ Kg6 Qd2 Bb8 Kc5 d8B Rb6 Bg5 Bd7 Bdf6 Bc6 Nc4 Bd5 Ne5 Bb3 Re4 Rd6 b6 Kb5 Nef7 Rd4 Qg3 Rf2 Qf3 Qb2 Rf4 Qa1 Re4 Rb2 Rf4 Rc4 Rd4 Be7 Rd6 Nb4 Ba7 Rd2 Bb2 Nf6 Bb8 Rh4 Rd8 Ng4 Rd3 Qc8 Qf8 Qa2 Bbf6 Rb2 Rd4 Nc2 Kh7 Ba3 Qd6 Qe8 Qdg3 Be7 Qd6 Qf8 Qa3 Bb4 Qf2 Qd8 Qf3 Qg8+
1BKQ4/Rp1P2n1/pQ1RB1k1/1Nb5/2P3b1/1b1p1qp1/1rpN1rq1/4qnQ1 w - - 0 1 illegal: No proof kernel
1b1qk1rN/pq3bp1/1BP1p2R/QK1p1p1q/4QR2/1Nn1P2b/1r1n1B2/4B3 w - - 0 1 illegal: No proof kernel
4rb1k/1B1p1nN1/2p4p/r2bR2r/P1QBQNQ1/pK2P1rR/2pq4/4nr2 w - - 0 1 illegal: No proof kernel
5rQ1/P1RpK2b/r4p1B/1B2pB1b/2pb3n/p2PNb2/q2nRQN1/1k3b2 w - - 0 1 illegal: No proof kernel
2bQ4/pKN2R1q/4pn1b/3P1pP1/pBRQB2p/7N/1rb1rb2/1k2b1nB w - - 0 1 illegal: No proof kernel
r4nKR/b1R3bQ/r4r2/rP3NBp/1p4p1/Bp3bp1/1q2R1P1/nQN4k w - - 0 1 illegal: No proof kernel
1qn2Qb1/2n1rR2/5N1P/B2p1Q1K/pppkn3/1PR2B2/3N1p1r/b1bnR3 w - - 0 1 illegal: No proof kernel
1BrR4/2nB1Qn1/3p1p2/1Nq1rn2/KR6/QP1Np3/p2k1Pp1/1R2rbbn w - - 0 1 legal: proof: e4 h5 d4 b5 a4 bxa4 g4 hxg4 d5 c6 Ke2 cxd5 Kd2 dxe4 Ke1 e3 h4 a5 c4 e5 h5 Ke7 c5 Kf6 c6 Kf5 b3 Ke4 h6 g5 h7 e2 Kd2 e1R Kc2 a3 c7 g3 Ba6 g2 Rh5 g4 Bf4 a4 Bc1 f6 Rh1 g3 Ne2 g1N Qd2 a2 Bb5 g2 Qc3 a3 Bb2 Na6 Nf4 Bd6 Rh4 Qf8 Qc5 Nh6 Qa7 Ne2 Qb8 Ng3 Bc4 Nh1 Qb6 Nf5 Qb8 Ng7 Qa7 Rb8 Bd4 Rb5 Be6 Kf3 Kc3 e4 Bh3 e3 Nd3 Bh2 Be5 Ke2 Rb4 Bg1 Bf4 Rg8 h8Q Re5 Qh7 Rh8 Qg8 Qc5+ Qc4 Bb7 c8R Nc7 Rd8 Bf3 Bh2 Kd1 Bf4 Be2 Qa4 Bf1 Bg3 Qb6 Qf7 Rg8 Kc4 Ke2 Nc3+ Kd2 Rb1 a1N Bh2 a2 Qa3 Nc2 Nb5 Nd4 Bg3 Ndf5 Bg4 Ree8 Bd6 Re5 Bh3 Na6 Bb8 d6 Bg4 Nc7 Bh3 Ne7 Bd7 Qa7 Ra4 Re8 Kb4 Qc5+ Ka5 Nef5 Rb4 R8e7 Ka4 R7e6 Rh8 Re8 Rg8 Rc8 Re8 Rd1 Rd8 Re1
Nr4n1/N5p1/1Ppb2BB/Q2p1p2/pRP1b1rk/7q/b3RKRQ/2nr1r2 w - - 0 1 legal: proof: f4 e5 d4 exd4 g4 b5 a4 bxa4 g5 h6 Be3 hxg5 Bd2 gxf4 Bc1 f3 e4 Ke7 h4 Kf6 c4 a5 b4 d5 e5+ Kg6 e6 Kh5 b5 d3 b6 d2+ Kf2 f6 e7 c6 e8R a3 Rh2 a4 Rg2 a2 Qe1 d1B Ne2 Na6 Nbc3 Bf5 Bh6 Qd7 Rb1 a1R Nb5 Bd6 Rb4 Nc5 Ned4 Bb3 Re2 Ba2 Ne6 Rd1 Na7 Rb8 Nc7 Be4 Na8 Nb3 Qd2 Nc1 Qc3 Qg4 Qe1 Kg6 h5+ Kf5 Bg5 Qh3 h6 Kg6 h7 Kh5 Bh6 Kh4 Qc3 Ne7 Qe1 Rhe8 h8Q Ng8 Rb5 Re5 Qa5 Rg5 Rb4 Rg6 Re3 Rg5 Bd3 Rg4 Re2 Bg3+ Ke3 f2 Bb1 f1R Bd3 Bf3 Bg6 f5 Qh7 Bd6 Qh8 Rfe1 Kf2 Be4 Qc5 Qb3 Qa5 Kh3 Be3+ Nh6 Qe8 Ng8 Bh6 Kh4 Qe5 Qh3 Qh2 Rf1#
2n5/1NN1pb1k/qbr1p2B/b6p/2Q2pRp/1P1PNb2/1nB4n/K1rQ3R w - - 0 1 illegal: No possible last move
1br1B1K1/Rp1N4/q3rr1p/1n3n2/Q1R1Nr1B/1Q1p2P1/2pQ2pP/2n2b1k w - - 0 1 illegal: No proof kernel
1n1n3k/1Q1Q2qN/1bBrrR1p/2P2q1n/b1K5/pB3pNP/1p1R1p2/n3R3 w - - 0 1 legal: proof: e4 b5 b4 c5 f4 g5 a4 bxa4 b5 gxf4 Ba3 d5 Bb4 dxe4 Qh5 cxb4 Qe2 Qb6 Qd1 Qd8 Ke2 a5 g4 e5 c4 f5 d4 Kf7 h3 Kg7 b6 h6 b7 b3 d5 a3 d6 a2 d7 b2 g5 e3 Kd3 a4 g6 e2 Nf3 e1Q Qd2 a3 Ng5 f3 Qf2 e4+ Kd4 e3 Qg2 f2 Nf3 f4 Kd3 e2 Rg1 Qda5 d8Q Ne7 Nc3 Nec6 Ng5 Qf5+ Nce4 Ra6 Rd1 a1N Rd2 Bc5 Nh7 Re8 Qd7+ Kh8 Rh1 Ba7 c5 Nd8 Kc4 Rd6 Ng3 Bb6 Qf3 Qeb1 Bg2 Ree6 Re1 Qe5 Qb3 Qbf5 Bc6 f3 Qb5 Qg7 Qb4 Na6 b8R Bb7 Ra8 Nb8 Ra6 Ba8 Ba4 Be4 Bc6 Bc2 Qb5 Ba7 Qbb7 Bb6 Rb1 e1N Rc1 Ng2 Re1 Ba5 Rb6 Ba4 Ra6 Nf4 Rb6 Qe7 g7+ Kg8 Ra6 Nh5 Rb6 Kf7 g8B+ Kg7 Rb3 Kh8 Rbe3 Rg6 Re6 Bb6 Rf6 Qf8 Kc3 Qg7 Bb3 Re6 Kc4 Rd6 Rf7 Rge6 Rf8+ Qg8 Rf6 Qg7
NBQ3B1/3p2Pr/qpn3nQ/n6p/1nR2KPp/3b4/2QN1pRr/4bq1k w - - 0 1 illegal: Other
2BNq1b1/7Q/QR2pp1b/bnp1p3/pn1RrQPK/5P1p/5kN1/Br3r2 w - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 b5 c4 bxa4 c5 d6 e5 dxe5 c6 Bf5 Qe2 Bc2 Qg4 Nxc6 Qd1 Nb8 d4 Kd7 g4 Kc6 b4 Kd5 b5 Ke4 b6 h5 b7 c5 d5 a5 d6 h3 d7 h4 Bb2 h2 f3+ Ke3 Nd2 f6 Qb1 a3 Ne4 h3 Nd6 e6 Ne2 a2 Nf4 Qe8 d8Q Nh6 Qb6 Nf7 Ba6 Nc6 b8Q Nb4 Bc8 Bh6 Nb7 Nd6 Nd8 Bh7 Qa6 Bg8 Qh7 Nb5 Rd1 a1B Rd4 a4 Qbb7 Rb8 Qbg7 Rb7 Qg5 Rb6 Rg1 h1R Bc3 Bb2 Kf1 Bc1 Ba1 Bd2 Qgf5 Rh2 Rh1 Re2 Kg1 Re1+ Kh2 Rf1 Ng2+ Kf2 Qf4 Rd6 Re4 Rd3 Rd4 Re3 Rg1 Re4 Rh1 Ke2 Kg3 Bc3 Kh4 Kf2 Qhf5 Rh7 Rg1 Rb7 Qh7 Nc2 Rh1 Ba5 Rg1 Nb4 Rh1 Rb1 Rhd1 Rc1 Rd6 Rb1 R1d4 Rd7 Rb6 Rd5 Rc4 Rdd1 Rd4 Rf1
1r4br/2p1pkrp/1R4N1/2BNp3/P1QR1n1Q/1p1P1Qn1/p7/bB2Kn1q w - - 0 1 illegal: No proof kernel
r1r1Q2n/np1R2B1/ppP1P3/pb1qQ3/3NR1p1/3n2pB/k1b1K1NQ/2b5 w - - 0 1 illegal: Other
1q3n1q/2br1BN1/3ppp1r/2r2p2/p1QR1P1n/Np1PN1Q1/B1K1bR2/4k3 w - - 0 1 illegal: No possible last move, all moves rejected
1rQ2R2/Bn1pp1q1/8/qkB3PK/pPbbNpNn/2bQp2R/B5p1/2r5 w - - 0 1 illegal: No proof kernel
2rqRK1N/5rB1/pRnn4/5Q2/r1p1p1PQ/k5p1/PpbpB2Q/r3N1b1 w - - 0 1 illegal: No proof kernel
R3b1q1/1q2QBB1/B2N4/1n1r2b1/B2P2NK/n1q1r3/PR5n/kbb4b w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 c5 d5 cxd6 gxh4 Nh3 c5 Ng1 c4 Qc2 b3 Qxb3 c3 d7+ Bxd7 Qd1 Bc8 Kf2 Kd7 e4 Kd6 g4 h5 e5+ Kd5 e6 b5 e7 f5 e8B b4 g5 h3 g6 b3 g7 b2 Be3 c2 Bc1 h2 Qe2 f3 Kg3 h4+ Kh3 f4+ Bd7 f2 Bd2 c1B Qd3 f3 Qg6 Nc6 Be2 f1B+ Kg4 f2 Bc3 h3 Bd2 Ra5 Bc3 Nh6+ Kh5 Be7 Bf3+ Kc4+ Qg5 Qg8 Bd2 Na7 Bc3 Nb5 Qg2 Bd3 Bd2 f1Q Nc3 b1N Bb7 N1a3 Ne4 Qe1 Qe2 Ng4+ Bh6 Beg5 Ba6 Qc3 Nf3 Bb7 Rb1 Bc6 Re1 h1Q Rb2 h2 Qe3 Bb1 Nd6+ Kd5 Rf1 Qg2 Rg1 h1B Ne5 Nh2 Ng4 Qe4 Rg3 Qe7 Be8 Qb7 Qe7 Rh7 Rf3 Bd7 Rf8 Rh8 Nf5 Kc4 Nd6+ Kd3 Bf7 Bdc6 Ra8 Be8 Rb3 Kc2 Rb4 Bgf4 Kh4 Rh7 Bb3+ Kb2 Ba4+ Ka1 Rb2 Na7 Rb4 Rd5 Rb3 N7b5 Rb2 Qe6 g8B Qec8 Qe2 Re7 Bg7 Re3 Bf7 Qcb8 Qf1 Bh6 Qf6 Q8c8 Qe7 Qe6 Bh5 Qg8 Bf7 Bg5+
1N4BN/Pn1r1q2/3Q2rb/R1RNPq1N/4B3/n1brr3/3b3K/1q1k2r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Bg4 Qd1 Bc8 d3 c5 Kf2 c4 Ba3 c3 Ke1 gxh4 Bb2 Bd7 a4 Bb5 Ba3 Bc4 dxc4 bxa3 Kf2 Kd7 e4 Kd6 g4 Ke5 Kg2 h5 c5 b5 g5 f5 a5 a2 d6 h3+ Kh2 b4 c6 b3 g6 h4 g7 f3 a6 Kf4 d7 Ke3 c7 c2 c8N c1B a7 f2 e5 f4 Qc2 f3 Nd2 b2 Qa4 b1Q Be2 f1Q Qb4 f2 Qg4 Qf6 d8N Qf7 Qe6 Nd7 Qa6 Ne7 g8B Nc5 Ne4 Rh6 Qf6 Nd5 Ng3 Kd2 Bb5 Nc3 Qg5+ Kd1 Qg7 Nb7 Nh5 Rg6 Nc6 Bd2 Qf6 Bfh6 Nd6 Rd8 Bc4 Rd7 Bh7 Nb5 Nb4 Na3 Bg8 Qd3 Ne2+ f1R Nd4 Re1 Bb5 Qf5 Ndc6 Reg1 Nb8 Re1 Bf1 Re3 Rg1 Rd3 Nd5 Re3 Kh1 h2 Rg4 Rd3 Bg2 Re3 Be4 Rd3 Kg2 h1R Qe7 Re1 Kh2 h3 Rh4 Ree3 Qf6 Qe7 Nf7 Qee6 Nh8 Qf7 Kh1 h2 Qd6 Qe7 Rg4 Qef7 Kg2 h1R Rg3 Rhe1 Kh2 Rg1 Rg2 Bb4 Rc2 Bd2 Rc5 Qc1 Rb1 a1B Rbb5 Bac3 Ra5 Qb1
1b2nn1n/Rq4Nq/PRB2pR1/1q1P4/1BN1K3/1R5q/r1q1n3/k5rQ w - - 0 1 legal: proof: e4 g5 h4 gxh4 d4 c5 f4 e5 b4 exf4 e5 d5 exd6 a5 c3 Be6 c4 Bd5 cxd5 cxd4 Bb2 axb4 Ba3 Qb6 Bc1 Qd8 Kf2 Kd7 Kf3 b5 a4 h5 g4 f6 g5 d3 g6 h3 g7 h4 a5 d2 Ra2 h2 Na3 b3 Qe1 d1Q+ Qe2 b4 Be3 b2 Bg2 b1Q Rc2 h3 Rc1 b3 Bf2 b2 Ba7 Qh7 Rb1 Qc8 Be3 Nh6 g8R Nf7 Nc2 Qb7 Nd4 Qdc2 Rg3 Rg8 Nc6 Nh8 Rf1 b1Q Re1 Q1b5 Bf1 Rg6 Kf2 f3 Bd2 Ra7 Ke3 f2 Kf4 Bh6+ Kf3 Bf4 Qd1 Ra8 Bd3 f1N Ne7 Ne3 Ke4 Nf5 Bb4 Ng7 Nf5 Ne8 Nf3 Be5 Rhg1 h1Q Ng7 h2 Qc1 Qhg2 Ref1 Qgh3 Nd2 h1N Nc4 Ra7 Re3 Bg3 Qa1 Be5 Rb1 Ng3+ Kf3 Ne2+ Ke4 Na6 Rb3 Nac7 Rg4 Ra8 Qh1 Ne6 Reg3 Nf8 a6 Rc8 Rh4 Bf4 Rh6 Rc5 Re3 Rg1+ Rg6 Rc6 Nd2 Rc3 Nc4 Be5 Rb2 Ra3 Rf3 Ra2 Rb3 Kc8 d7+ Kc7 d8R Bg3 Rb8 Kd7 Ra8 Bb8 Ra7 Kc7 Na3 Kb6 Rf4 Qbc5 Nc4+ Kb5 Rf1 Ka4 Rfb1 Qh2 Kf3 Qcb5 Bf5 Q2h6 Bd7 Qh4 Bc6 Qh2 Rd3 Q2h3+ Ke4 Rb2 Bc3 Kb3 Bb4+ Ka2 Rd1 Qc1 Rb3 Ka1 Rd2 Ra2 Rdb2 Qa4 Ba5 Qcc3 Rb6 Qb5 Rb3 Qb2 Bb4 Qc2+
1q1b1RK1/1NnqR1NN/1B1q2r1/r1b4P/k1N2q2/P1qB4/Q2nn1b1/1q6 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 Nd2 hxg4 Nb1 d5 cxd5 c5 Qd3 cxd4 Qd2 Ra6 Qd1 Ra8 Kf2 Kd7 h4 b5 e4 f5 d6 Kc6 a3 g5 e5 g3+ Kf3 d3 d7 d2 h5 g2 e6 g4+ Kf2 g3+ Kf3 b3 e7 b4 e8N b2 Nh3 g1N+ Kg2 b3 Nf6 Be7 Nc3 b1Q Ng5 b2 Nfd5 Bb7 Qe2 d1Q Qf3 Nf6 Qe4 Rh6 Qe2 Rg6 Nf7 Ne4 Rh2 Nd2 Nc7 Na6 Qf2 Ne2 Kh3 f3 Nd6 f4 N3d5 g2 Ne6 g1B Nf6 Nc7 Kh4 Ra5 Nc4 Kb5 Ng7 Ka4 Ra2 Qb8 d8N Qd3 Ra1 Ba8 Nb7 b1Q Bb2 Qd1c2 Bd4 Bd8 Bb6 Qd6 Rg2 Qb5 Re1 Qc3 Rg5 Qf5 Nh7 Qfd7 Qg2 f2 Qh2 Rf6 Rf5 f3 Rf4 Rg6+ Rf6 Ng3 Bd3 f1Q Re7 f2 Rf8 Qb1 Qg2 f1Q Qd5 Rf6 Kg5 Bc5 Qf7 Ne2 Qe6 Rf4 Kh6 Qfc1 Kg6 Rg4+ Kf7 Rg6 Kg8 Qf1 Ne5 Qf5 Qa2 Qf4 Nc4 Rb5 Nba5 Bg2 Nb7 Ra5
1BN3k1/Q1n2bnR/1NbN3b/5q2/n2r4/3n1Pb1/n2Rr1KP/1Bqr1N2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 c5 d4 cxd4 Kd2 f5 Ke1 b5 axb5 fxe4 Bh6 axb4 Bd2 Rh4 Bc1 Rh8 c4 Kf7 b6 g5 c5 d5 c6 e5 f3 g3 c7 e3 b7 g2 Qb3 e2 Kf2 e1B+ Ke2 g4 Ra5 e4 Bh6 e3 Ra7 g3 Nh3 g1R Na3 d3+ Kd1 g2 Nf4 d2 Ke2 d1B+ Kd3 e2 Ke3 Ne7 Nc4 d4+ Ke4 d3 Qa3 b3 Ke3 d2 Qc5 b2 Bg7 b1N Ra6 Ba4 Qd5+ Be6 c8N d1N+ Ke4 Qa5 Ra7 Rh4 Qc6 Kg8 Na3 Nf5 Nc4 Nb2 Qb6 Na6 Be5 Bh6 b8N Bf2 Qe3 e1N Rh7 Ng7 Nd7 Bf7 Bb8 Nc7 N4d6 Qf5+ Kd4 Ra7 Bd3 Nc3 Bb1 Rf1 Rg1 Ned3 Rh1 Rc1 Rd1 Be1 Qg1 Bc6 Ke3 Ra2 Qf2 Nba4 Qg1 Rf2 Rd2 Rf1 Qf2 Na2 Ke2 g1Q Nh5 Rb4 Qa7 Rd4 Ndb6 Qh1 Ng3 Rg1 Nh5 Rgg4 Ng3 Rgf4 Nf1 Rfe4+ Ne3 Qg1 Rb2 Qgg5 Kf1 Bg3+ Kg2 Rd1 Nf1 Qc1 Rd2 Re2+
4NNr1/1K3nBb/1b2r1n1/N1R1q1b1/P4NqB/b1b3P1/2Q1q2R/rr4k1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 h5 e4 a5 f4 gxf4 e5 axb4 g3 h4 e6 h3 Bg2 hxg2 Ke2 fxe6 Kf2 e5 Ke1 e4 Kf2 Kd7 a4 Kd6 d4 c5 h4 b5 h5 e5 h6 b3 h7 e3+ Kf3 b2 Ke4 e2 Rh4 e1B Qe2 f3 Nc3 b1R Qd3 c4 Nh3 g1B Nf4 f2 Na2 f1Q Qb3 b4 Bd2 c3 Ne6 c2 Rh1 c1B Bh6 Nc6 Rh3 Qh4+ Bf4 Ra6 Qd1 b3 Nc3 b2 Ng7 Nd8 Qc2 Nf7 Ne2 Qg4 Rh2 Ne7 Ra3 Ba5 Rc3 Ra1 Rc5 Rg8 h8N b1R Ng6 Bc3 Ne8+ Kd7 d6 Ke6 Nh4 Ng6 d7 Ba3 d8B Bh6 Bf6 Bg5 Bg7 Bd7 Nc1 Be3 Nb3 Qfe2 Na5 Bb5 Ng2 Rb6 Nf6 Bc4 d5+ Kd6 Rc7 Rc6 Ne8+ Kc5 d6 Ba6 d7 Bb5 Rb7 Re6 d8N Bc4 Rb6 Bb3 Qd3 Bc2 Rc6+ Kb4 Ndb7 Qd2 Kd5 e4 Bf6 Nh4 Bb8 Bgf4 Bfe5 Bb6 Bg7 e3 Rc8 e2 Nc5 e1Q Bd6 Qe5+ Kc6 Qde2 Kb7 Bfc1 Qd1 Bh7 Be7 Ng6 Qc2 Bf4 Bh4 Bg5 Nc6+ Kc4 Nd7 Kd5 Na5 Kd4 Nf4 Ke3 Nf8 Kf3 Rc5 Ke3 Rh3 Kf2 Rh2+ Kg1
Q1B2kb1/N2nb3/RN5r/2b1n1n1/3r1bRq/Pbr1B3/3r3P/NnK3N1 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 Nd2 hxg4 Nb1 d5 cxd5 c5 Qd3 cxd4 Qd2 Ra6 Qd1 Ra8 Kd2 g5 e4 b5 e5 f5 d6 f3 a3 f4 e6 g3 e7 f2 Qf3 b3 Bg2 f1B Nh3 d3 Qf2 b4 Bb2 f3 Qd4 f2 Qb6 g4 Qc7 Be6 Qc6+ Nd7 Qb6 Rh6 Qc7 Rc8 Kd1 d2 Bc6 g2 Qb6 g1B Qb7 g3 Qa8 g2 Bd5 Bc4 Be4 f1N Qa4 Be3 Bb7 g1B Qa6 Bf4 Bd4 b2 Qa8 b3 Be3 Ne5 d7+ Kf7 e8N Ng3 Nf6 Ne4 Ra2 Ng5 Nd5 Nf6 Nb6 Be7 Ba6 Qh8 d8N+ Kf8 Nc6 Bg8 Na7 Nfd7 Ra1 Bf2 Rf1 Qf6 Ng1 Bce6 Qe4 Rc3 Bc8 Bef7 Qa8 Qh8 Ke2 d1R Nd2 b1R Ra2 b2 Nb3 Rd4 Na1 Bb3 Rd1 Ra4 Rd6 Rd1 Re6 b1N Rb2 Ba2 Rb4 Bb3 Re4 Rad4 Rg6 Rd5 Ra4 R1d4 Ra6 Nh7 Rg2 Qf6 Rg6 Qh4 Rg4 Ng5 Nc2 Nd3 Kd1 N3e5+ Kc1 Rdc4 Bd2 Bfc5 Be3 Ra4 Qb8 Rd2 Qa8 Rcd3 Na1 Rad4 Bf2 Rg3 Be3 Rf3 Bf2 Rfd3 Be3 Rc3+
rn2qk2/1qnr1n1q/1q2R3/3N1N1q/4KP2/1P2b1B1/1nR1QR1q/1Bq1R3 w - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 d4 cxd4 Bg5 b5 Bc1 bxa4 h5 Ba6 h6 Bc4 b4 Bb3 cxb3 gxh6 Kd2 h5 Ke1 h4 Ke2 d5 f4 e5 g4 a5 b5 h5 g5 h3 b6 a3 b7 a2 g6 a4 g7 a3 Qd2 d3+ Ke3 d4+ Kf2 h2 Bg2 h4 Nf3 e3+ Ke1 e2 Kf2 e1N Bb2 h3 Bf1 e4 Qe2 e3+ Kg3 d2 Qd3 d1Q Kg4 e2 Kf5 Rh7 Nh4 Qb6 Ke4 Bc5 Kd5 Ne7+ Ke5 Nf3+ Ke4 e1Q+ Qe2 d3 Bd4 d2 Bf2 Be3 Nf5 Ne5 Qf3 Nf7 Bg1 Nd5 Nc3 Nc7 Qf2 Qh5 Rb1 d1N Rc1 a1Q Qe2 a2 Bf2 Nb2 Rc2 Qab1 Nd5 a1Q Bg3 Qaa7 Rg1 h1Q+ Bg2 Qec1 Re1 h2 Bf3 Qa3 g8R+ Qf8 Rg6 Qh8 Re6+ Kf8 Rf1 Qg1 Rf2 h1Q Bg2 Qgh2 Bf3 Nd8 Bg2 Rd7 Bf3 Nbc6 b8R Qe8 Rb7 Nf7 Ra7 Nb8 Ra1 Q8h7 Bg2 Qa2 Bf3 Qaa7 Bg2 Qcg1 Re1 Qab7 Bf3 Q2h5 Bg2 Qh1h2 Bf3 Q5g6 Bh5 Qg5 Bg6 Qgh5 Rec1 Bd2 Nd6 Qg7 Rc5 Qhh6 Kf3 Bc3 Bb1 Qgh7 Nf5 Bd2 R5c2 Be3 Ke4 Q6h5 Rd1 Qe1 Rdc1 Qd2 Re1 Qc1
q3q3/1KR4P/BQ4B1/q2P1n1r/b2b1bb1/q3b1NR/NB3n1B/4k1nb w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 b5 f4 d5 f5 dxc4 f6 exf6 Nf3 f5 Kf2 f4 Ng1 Ra7 Ke1 Rb7 Ra3 axb4 Ra1 b3 Ra3 b4 Ra1 Rb5 axb5 Rh5 Nc3 Rh3 Nb1 Rh8 Kf2 Kd7 h4 Ke6 d4 Kd5 b6 Ke4 e3 c5 b7 g5 d5 f5 h5 b2 h6 c3 Ne2 f3 Ng1 g3+ Ke1 f4 Qa4 c4 Rh5 f2+ Ke2 g2 Rh4 c2 Qb5 b3 Na3 b1Q Qa6 g4 Qc6 b2 Qd6 c3 Qb6 g3 Rh3 Bc5 Qf6 Na6 b8B Bd4 Be5 Nc5 Nc4 Qa2 Qh4 b1Q Bg7 Nd3 Nf3 g1B Ba3 c1Q+ Nb2 g2 Be5 c2 Na4 Qb5 Nh2 Ne7 Bb2 Nf5 Qf6 Qbe8 Qb6 Qa3 Ra2 Qa1 Bd6 c1B h7 Rg8 Bb8 Rg5 Be5 Rh5 Bb8 Qad6 Ra3 Qc5 Rc3 Qa5 Rc7 Qa3 Nc3+ Ke5 e4 f3+ Kd1 Kf4 Kc2 Ke3 e5 Bd7 Be2 f1B e6 Kf2 e7 Ke1 Na2 Nf2 Ba6 Bfb5 Nf1 Bf4 Ng3 Ba4+ Qb3 Ng4 Kd3 Bge3 Kc4 g1N Qb7 f2 Qb6 Qh8 e8B f1B+ Ne2 Bg2 Ng3 Bh1 Bg6 Qhe8 Bc8 Qa8 Ba6 Qd3+ Kb4 Qa3+ Ka5 Bc8 Qc5 Nf2 Kb6 Qac6+ Ka7 Qb5 Qb6 Bd7 Kb7 Qa5 Rc3 Nh4 Bd6 Bg4 Rc7 Nf5 Ne4 Bh6 Bh2 Bhf4 Ng3 Qa8#
Br2rnk1/2BP1N2/b1Kb1n2/3n4/2rBr2n/Nn1Q1R2/PB1n3R/2b2b2 w - - 0 1 legal: proof: f4 d5 e4 h5 g4 hxg4 d4 a5 c4 dxc4 b4 axb4 e5 Qd6 exd6 e5 d5 exf4 Kd2 g5 h4 c5 h5 b5 h6 f5 d7+ Kf7 d8B f3 Ke3 c3 d6 f2 h7 c2 Bb2 c1R Bg2 f1N+ Kd3 g3 Bb6 f4 Ke4 g4 Kd5 f3 Bf6 b3 Nh3 b4 Qd2 b2 Bc7 f2 Bcd8 c4 Bh4 c3 Qd3 b3 Kc5 c2 Bhg5 Ne3 Qc4+ Nd5 Rg1 f1B Qa4 Ngf6 Bf3 g2 Qa5 g3 Nd2 b1N Be7 b2 Qa3 Bca6 Be4 Nbd7+ Kc6 Rb8 Nc4 Nd2 Bd8 b1N Bc7 Nb3 Rh1 g1R Rh2 g2 Be3 N1d2 Bd4 Rh1 Bb2 g1N Ng5+ Kg7 Bd4 Ngf3 Nf7 Nh4 Bg2 Rg8 h8B+ Kh7 Rb1 Be7 Rb2 Nf8 d7 Bd6 Rh3 Re1 Rf3 c1B Rc2 Re4 Bb2 Na1 Qd3 Nab3 Na3 Rg4 Bd4 Kg8 Bb2 Rh2 Bh1 Rhe2 Bg7 Nh5 Bgd4 Nhf6 Bg2 Ree8 Bh1 Rf4 Bg2 R2e4 Bh1 Nb1 Rh2 N1d2 Bdc3 Re1 Re3 Ra4 Bd4 Nb6 Reh3 Bb7+ Kb5 Rc4 Bg2 Bc8 Ba8 R1e4 Rf3 Nbd5+ Bdb6 Nc5 Kc6 Ba6 Ba7 Ncb3+ Bc5 Rcb4 Bcd4 Rc4+
N6b/bNN1b3/QK1P1q2/r2Rn1B1/r1P1R3/1pqr2k1/3B4/bnbNq3 w - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 cxd4 Bh3 h5 Bf1 hxg4 Bh3 f5 Bh6 d5 Bd2 d3 Bg2 d4 Bc1 Be6 Bf3 Bd5 exd5 Nd7 Bg2 Nb8 Be4 fxe4 Kd2 Kd7 h4 Kd6 c4 Ke5 a4 Kf4 h5 b5 a5 e5 f3 g5 d6 e3+ Ke1 g3 a6 e4 h6 g2 h7 d2+ Ke2 g4 a7 g3 Nc3 b3 Na2 b2 Nb4 b1Q Nc2 b4 Qe1 d1R Rh3 b3 Rh1 Ne7 Qd2 Nbc6 Ra3 Ne5 Rh6 Qb2 Qb4 Qc3 Ra6 Rd3 Qa5 Nd5 Rh5 Qf6 Ne1 Be7 Bd2 Rhb8 h8B Rb4 Rg5 Ra4 Rg8 Nb4 Rb8 Nc2 Re8 Na3 Qb6 Nb1 Ra5 Rb8 Qa6 Rb5 a8N Rc5 Rb5 Rd5 Rb6 Rda5 Rc6 Kf5 f4 Kg4 Nh3 g1B f5 g2 Rc5 Kg3 Rd5 Bh2 Nc2 g1B Ng5 Bf2 Nf7 Bhg1 Kd1 e2+ Kc1 e1B Nd8 e3 Nb7 e2 Bg5 Qb4 Kb2 Bd2 Ne3 e1B Nd1 Bh2 Bg7 Bhg1 B7h6 Bc3+ Kc1 Ba1 Bd2 Be3 Bg5 Qe6 f6 Qf5 f7 Qf6 Nb2 Qc3+ Kd1 Bf4 Ke2 Bge3 f8N B1f2 Be1 Bc1 Nd1 Bcb2 Ne6 Bfc1 Ned8 Rf3 Bed2 d3+ Kf1 Re3 Ne6 Rf3 Nec7 Ba7+ Ke1 Bb8 Rf8 Qg7 Rf4 Qf6 Re4 Qb4 Bc3 d2+ Ke2 Rd3 Nf2 Rd4 Ke3 d1Q+ Bd2 Qh1 Nd1 Qhf1 Rf4 Rd3+ Ke4 Rc3 Kd4 Qe1 Rb5 Rf3+ Kd5 Qc3 Kc5 Re3 Re4 Rd3 Kb6 Qg7 Bge3 Ng6 Nd5 Qb4 Ndc7 Bd4+ Nc5 Qc3 Bh6 Qf7 Bhg5 Bh8 Nb7 Qff6 Rc5 Ne5 Rd5 Ba7+
2b2R2/R2bBQr1/1bbP1p1N/1k2rP2/n2nn1R1/1q1r2B1/NR6/1bq2K2 w - - 0 1 legal: proof: b4 c5 e4 d5 a4 b5 axb5 cxb4 h4 dxe4 h5 a5 h6 a4 Bc4 gxh6 Nf3 h5 Bb3 axb3 Ng1 h4 c4 Kd7 d4 e5 g4 h5 f4 h3 c5 h2 d5 e3 f5 h4 b6 b2 g5 e2 g6 e4 g7 h3 b7 b3 Ra7 Nf6 g8R Nc6 Ra1 Ra7 b8B Nd4 Ra3 Qb6 Nd2 b1B Nf1 b2 Bd2 Qb3 Kf2 e1R Bg5 e3+ Kg3 e2+ Kf2 Bh6 Rg7 Rd8 Ne3 Rc7 c6+ Kd6 Qd3 Kc5 Qe4 Kb5 Ra7 Re7 c7 Re5 Nf3 Rg1 Nd2 e1N Ng4 Nd3+ Ke3 Nc5+ Kf2 Bd3 Nb1 Na4 Rg6 Bf8 Nh6 Bc5 Rg8 Bd7 c8R Bb6 Rc4 Bf1 Rf8 Be2 Bh4 Rg7 Rc2 Bc4 Rg1 h1Q Rg4 h2 Bg3 Qc1 Bd6 h1B Be7 Bd3 Qe1 Bde4 Kf1 Bef3 Rd2 Ne4 Qd1 f6 Nc3+ Kc4 Rh2 b1B Na2 Kb5 Rb2 Bc8 Rg6 Bh5 Rg4 Be8 Qe1 Rd6 Qd1 Bed7 Qe1 Rc6 d6 Rc3 Qd1 Rd3 Qe1 Nf2 Qd1 Bhc6 Qe1 Qc2 Qe4 Qc5 Qd5 Ne4 Qf7 Qc1+
K1b3br/bNN1nQR1/1Pnr4/1n5P/1Rq1k2B/4pq2/RB4Rr/2bb4 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Be2 g5 Bf3 gxf4 g5 Ba6 Be2 Bc8 Bg4 hxg4 Ke2 Kf7 c4 Kg6 b4 Kf5 h4 e5 b6 a5 b5 d5 b7 a4 h5 a3 c5 f3+ Kf2 e3+ Kg3 e4 g6 f2 g7 f1Q c6 e2 c7 e1N Qd2 a2 Qd1 d3 Nh3 d2 Nf4 d4 Ne6 d3 Bb2 Nf3 Rg1 Ra6 Nc3 Rd6 Nd5 Ne7 g8R Nbc6 b8B Nfd4 Qb3 d1B Rg7 d2 Rg2 Qc4 Nc5 e3 Nb7 Ke4 Rb1 a1B b6 Nb5 Qa2 Bb3 Qa7 d1B Qa2 Be6 c8R Bf5 Rc7 Bc8 Rd7 Qe8 Nc7 Qef7 Qa7 Rg6 Rdd2 Rd6 Ba3 Bc3 Ra2 Bd2 Bb2 Bc1 Bc3 Ba4 Rb4 Bab3 Bb2 Qf1 Nd5 Qf5 Bc7 Qf1 Bd8 Qf6 Nc7 Qf3+ Kh4 g3 Kg5 Nd5 Bdf6 Be7 Kg6 Bf8 Kf7 Be7 Rd2 g2 Rc2 g1R Rcg2 Bf8 Ke8 Rh1 Bh4 Rh2 Qb8 Bh3 Qd8 Be6 Qf6 Bg8 Qf7 Nde7 R7g6 Bg7 R6g3 Be5 Rg7 Rg6 Kd7 Ba4 Nd5 Bb8 Nc7 Rf6 Ba3 Ba7 Bb2 Nd5 Kc8 Rd6 Nd8 Bab3 Kb7 Nde7 Ka8 Bbc2 Nb7 Bd3 R2g5 Bf1 Rg1 Bh3 R1g2 Bc8
2N1K3/N1kP1r2/Qn1q3b/qPb2b2/2pR1nb1/4B1b1/1R2r3/1nqR1RB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 b4 Kd7 d4 g5 Kd2 c5 Kc3 f5 e4 a5 h4 f4 b6 f3 e5 f2 d5 f1B b7 a4 b5 g4 h5 a3 d6 a2 h6 Nf6 h7 Ra7 Qe1 Nd5+ Kd2 Be2 Nf3 g1B Nd4 g2 Nc6 g3 Nc3 Bg4 Ne4 c3+ Kd3 c2 Kc4 Qg5 Qa5 Bf2 Qa6 Qg6 Rf1 g1B Bh6 g2 Rad1 a1Q e6+ Ke8 e7 Kd7 e8R Qa5 Bg5 Bg3 Bh6 Bd4 Be3 Bfg7 Ref8 g1N R8f4 Nh3 Bg1 Rd8 h8R Nc3 Rh6 Nb1 Kd5 c1Q R4f2 c4 Rb2 Re8 Rh4 Bh5 Rg4 Bc5 Rgf4 Ra8 Na7 Bh6 Rg4 Kd8 Rgf4 Nd7 Kc6 Nb6 b8B Be6 d7 Bhg4 Nd6 Bef5 Rfd4 Re2 Bc7+ Ke7 Bd8+ Ke6 Bg5 Rf8 Kc7 Rf7 B5e3 Nf4 Kd8 Qf6+ Ke8 Qe5 Ndc8 Qd5 Ne7 Kd6 Nec8+ Kc7 Bh2 Qc6 Bg1 Qd6
2Q3n1/BR5P/1n1n1kqN/r1Kb1Bn1/3rr1r1/N1pN1r1P/5Rb1/2N2n2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 Be7 Qb3 Bh4 gxh4 axb6 Qc3 b5 Qf3 b4 Qg4 hxg4 Kf2 Ke7 d4 b5 a4 g5 e4 f5 d5 c5 a5 c3 e5 b3 e6 b4 h3 f3 Ke3 b2 d6+ Kf6 a6 c2 d7 b3 e7 g3 e8Q g2 a7 g4 h5 f4+ Kd3 f2 Kc4 f3 h6 g3 h7 Qb6 d8N Nd7 Qh5 Bb7 Be2 f1B Nc3 b1R Ra6 b2 Nd1 f2 Nf3 g1R Bd2 c1R+ Nc3 g2 Be1 Rd1 Qg4 Ra1 Nf7 b1N Ra3 Rf8 Rb3 Ra5 Na2 Nc3 a8N Nb5 Bd3 Be4 Rh2 Nd6+ Kc3 c4 Nh6 Bd5 Nc1 Rd2 Bf5 Rd4 Nc7 Re8 Bd2 Ree4 Be3 Qc6 Kb4 Nb6 Ne5 c3+ Nc4 Qe8 Na6 Qg6 Rb2 Ne7 Nc5 Rf8 N5d3 Ng8 Qg3 Rh1 Qg4 g1N Rb3 Bg2 Rb1 f1N Bf2 Ra2 Kc5 Nf3 Na3 Ng5 Rb4 Rg1 Be3 Bf3 Rf2 Rg3 Rb1 Bg2 Rb5 Nbc8 Rb7 Nb6 Qe2 Ra1 Qa2 Rf3 Qc4 Rg4 Qa6 Re8 Qa8 Ree4 Qc8 Nb5 Bf4 Ra2 Bb8 Nd6 Ba7 Ra1 Nb1 Ra6 Na3 Ra5+
1nb1k3/1BrbN3/2RQq3/1N2r1K1/2b1b2p/1NP1rB1R/2Pn1r1n/1q1N4 w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 Bb2 gxh4 Nc3 c5 Bc1 c4 Nb1 c3 Bb2 cxb2 Qc1 Bg7 Qd1 Bc3 dxc3 Qf6 Nh3 Qe7 Ng1 Qd8 Kf2 d5 Kf3 h5 a4 b5 g4 f5 e4 d4 a5 d3 e5 d2 a6 h3 a7 h4 e6 b3 g5 h2 g6 b4 e7 Nh6 g7 Qd6 g8B Qe6 Nh3 Rh7 Bg2 Ng4 Qf1 d1B+ Qe2 Rf7 Nd2 b1R Bh7 b2 Ne4 b3 Re1 h1B Ra6 Nh2+ Kf2 f3 Ke3 f2 Kf4 f1R+ Kg5 f4 Qd3 f3 Qd6 f2 Nc5 Bg4 Bb7 Bc6 Re3 B6d7 Bhe4 Bf5 Rc6 Rbe1 Bf3 b1N Rd3 b2 Nb3 Re5 Re3 Na6 Rd3 Rb8 a8N Nd2 Nb6 b1Q Nd5 Rfe1 Re3 f1B Nf2 Bc4 Nd1 Ra8 Rd3 Ra7 Re3 Rf8 Rd3 Nb8 Re3 Kf7 e8N Re2 Nec7 Rf2 Nc1 Re8 Nb5 Re7 Nb3 Ke8 Ba8 Rc7 Bb7 Qf7 Rd3 R7e6 Ne7 Re3 Rd4 R6e5 Rg4 Qd5 Rg3 Qe6 Rh3 Be4+
Rn1bN2b/R3N3/3q1r1n/1B5P/R1QrbR1n/2q4P/nBp3q1/qk3K2 w - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 g4 h5 f4 exf4 a3 bxa3 gxh5 Bg4 Bb2 Bd7 Bc1 Bc8 d4 Ke7 e4 Kd6 d5 Ke5 h3 g5 d6 c5 d7 b5 Bd3 Kd4 e5 f5 e6 a2 e7 g4 e8R g3 Re7 f3 Re6 c3 Re8 f4 Qd2 c2 Re5 f2+ Ke2 c4 Rf5 c3 Bb2 c1N+ Kf1 b4 Na3 b3 Nc4 Be7 Rg5 Nh6 Rf5 Ra4 Rc5 Bb7 Qd1 Rf8 Rc6 Rf6 Ba3 c2 Ra6 Kc3 Qf3 b2 Ra5 b1Q Ne3 Qb2 Be2 Rd4 Ra4 Be4 Rb1 a1B Qg4 Na2 Nc4 Qf8 Rc1 Bd8 Nf3 Qd6 Nh4 Kb3 Re1 Qc3 Nf5 Bb2 Bd3 Ba1 Ne7 g2+ Ke2 g1N+ Kf1 Nf3 Bb2 Nh4 Rg1 Qc5 Nd6 Q5b4 Ne8 Qd6 Ba3 Bb2 Bb5 Ba1 Re3 Bb2 Rf3 Ba1 Bb4 Kb2 Ba3+ Kb1 Qe6 Bb2 Rg5 Ba1 Rc5 Bb2 Rc7 Ba1 Rca7 Bb2 Rd3 Ba1 Qc4 Bb2 Ke2 f3+ Ke3 f1Q Rb7 f2 Qe6 Bb6 Qf7 Ka1 Bc5 Qg2 Ke2 Rf3 Qd5 Qa5 Qc4 Rd5 Ba3 Bh8 Rc7 Rf8 Rf3 Qc3 Rf4 Rd4 Bc1 Rf6 d8R Na6 Ra8 Nb8 Rca7 Bd8 Ba3 Qg1 Bc5 Kb2 Bb4 Qa1 Ba3+ Kb1 Bc1 Qcb4 Bb2 f1Q+ Ke3 Qh1 Kf2 Qc3 Ke2 Qh2+ Kf1 Qg2#
4k2B/3n2P1/K3BB2/1Q2b3/pN1Pb1N1/1b3q1r/nqRr1R1n/q2n2qB w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 h4 g5 f4 exf4 b3 cxb3 Rh2 gxh4 Rh3 Nc6 Rh1 Nb8 g4 h5 e4 c5 Ke2 a5 d4 f5 Kd3 b2 Kc4 h3 b6 h4 Kb5 c4 g5 c3 g6 f3 e5 c2 b7 h2 e6 h3 e7 f2 Qe2 f4 Ra3 f3 Bg2 f1N Rd3 f2 Qe3 Nd7 b8B Nh6 Rc3 Qb6+ Kc4 Bg7 Bd2 c1N Be5 Nf5 Qe2 Na2 Na3 b1Q Rc2 Qa1 Bg5 Qbb2 Nf3 a4 Bef6 Rb8 Ne5 Rb7 Rg1 h1Q Ng4 Nh2 Rf1 Qg1 Bh1 Rb3 Bf4 Rd3 B4e5 Rd2 Qd3 Rh7 Qb3 Bb7 Kb5 Be4 Ka6 Ne3 Qd3 Nd1 Qb5 Bf8 Bh8 Bg7 Bf6 Bd5 Rc3 Bg8 Nc2 Bb3 Nb4 Rh6 Rc2 Rh5 Re1 f1Q Re2 Qf3 Rf2 Rh6 Bh4 Be5 B4f6 Nf1 g7 h2 Bg2 h1B Bh3 Kf7 Bg2 Rh3 e8B+ Ke6 Bg6 Nh2 Bf5+ Kf7 Be6+ Ke8 Be7 Qf7 Bf6 Qf8 Bgd5 Be4 Bc6 Bf5 Bh1 Be4 Bd8 Qf4 Bf6 Qf3
2b1r2b/P1N2b1n/N1k1Pn2/brB1R3/K5N1/2B5/rb2p2N/bR1r2Qq w - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 b4 axb4 g4 hxg4 Bd3 d5 cxd5 e5 Bc2 exd4 e5 Ra6 Bd3 Ra8 Be4 fxe4 Kd2 Kd7 Kc2 c5 Kb3 g5 f4 b5 a4 d3 h4 d2 d6 g3 a5 g2 a6 c4+ Kc2 c3 Kb3 c2 f5 e3 e6+ Kc6 d7 e2 h5 g4 f6 g3 h6 Bg7 f7 Qh4 f8B Nf6 Be7 Nh7 Ra3 Re8 Ra2 Ba1 Qf1 d1R Nf3 g1B Ra5 g2 Bd2 c1B Qe1 Ba3 Nc3 Bb6 Bc5 g1B Nh2 Bd4 Nd5 Bh8 Nc7 Qe4 Rf1 Qh1 Bc3 Ra7 Rf5 Ra8 Qg1 Ra7 Ra4 Ba5 Rd5 B3b2 Ra2 Ba3 Re5 Ra8 Rc2 Ra7 Rc1 Ra8 Ka2 b3+ Kb1 b2 a7 b4 Kc2 b1B+ Kb3 Nf8 h7 Bf6 h8N Nh7 Nb5 Bg6 Nf7 Bh8 Ka4 b3 Nc7 b2 Qe3 b1R Nh6 Rb2 Qg1 Ra2 Rb1 Bf7 N6g4 Na6 Be3 Rb8 Bf2 Nb4 d8N+ Kd6 Bb6 Nd5 Nc6 Ndf6 Nb4 Rb7 Bbd4 Rb5 Nba6 Kc6 Bc5 B3b2+
1Q2rbN1/1KR3n1/1Rb5/6B1/nP1Bqq2/1Bn2q2/1P4kp/1nN1nnBn w - - 0 1 illegal: No possible last move, all moves rejected
5N1B/k1qNq1r1/5bb1/2n1Pb2/2QR1BKn/1N1b1Pbn/b3Rp2/4N1q1 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 e3 cxd4 Ba6 e5 Be2 exf4 Kd2 f3 Bd3 f2 Ba6 f1B Na3 h5 Rb1 b5 Bb7 f5 Be4 f4 Bf5 f3 Ra1 f2 Bg4 hxg4 Nb1 Ra6 Ba3 Rf6 Bc1 Rf3 gxf3 Qc7 Ba3 Qb6 Bc1 Qd8 h4 g5 a4 d5 c4 Kd7 h5 Kc7 a5 Kb7 a6+ Ka7 e4 g3 h6 g4 e5 b3 c5 b4 c6 g2 h7 d3 Ke3 d2 Kf4 b2 c7 b3 Rh3 g3 Rh6 d4 Qc2 d1Q Rc6 d3 Nd2 b1B Qb2 Bf5 Rd6 Nh6 Rf6 Nd7 Rc6 Rg8 h8B Qe7 Ra2 Bg6 Qa3 b2 Nb3 d2 Bg7 Nc5 Qa4 Bfd3 Bh8 Rg7 Qc4 Qc2 Rd6 d1Q Ne2 g1B Ned4 Nf5 Kg4 g2 Bf4 Nh4 Rd8 Qc3 Nc2 Bh2 Rd4 g1N Ne1 Bg3 c8N+ Ka8 a7 Nh3 Ng2 Qg1 Ne1 Kb7 a8N Qc2 Ra3 Ba2 Ncb6 b1B Nc7 Qc3 Ra4 Bbc2 Rb4 Ka7 Ne6 Bde4 Nd7 Bcd3 Rb6 Qa5 Rbd6 Qc7 Rc6 Rg8 Rb6 Bg7 Nef8 Bf6 Rc6 Rg7 Rcd6 Bc6 Re4 Bd5 Re2 B5e4 Rd4 Bef5#
8/1qRBRqrN/3b3K/1bq1R1r1/2PB1PQ1/k1q2r1r/bp2NnR1/7q w - - 0 1 illegal: No possible last move, all moves rejected
2n4n/6Q1/r1bbK3/B4n1P/3BP1B1/rRN2pkb/4BRN1/brrb1r2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Na3 Qg5 Nb1 axb4 Qd3 b3 Qd2 b4 Qd1 Qb5 axb5 Ba6 Qd3 Bb7 Qd1 Bc8 Kd2 Ke7 Kd3 Kd6 Ke4 g5 Kf5 f3 c4 d3 h4 d2 h5 f2 e3 g3 b6 g2 b7 g4 Ra4 g3 Qf3 d1N Rh3 b2 Ra1 b3 Ra5 Ra6 Rb5 Ne7+ Kf6 Ng6 Nc3 b1B Be2 f1R Rh2 b2 Qf5 Be4 Bf3 b1R Be2 Bc6 e4 Ne3 Qf2 Nf5 Nh3 g1R Rb6 g2 Kg5 Ke5 c5 d5 Bd3 d4 Qf3 Bd6 Qd1 Nd7 Rb3 Nb6 Be2 d3 b8B d2 Ba7 B8d7 Bb2 Ra8 Nf4 Nc8 Bb6 Nh8 Ba5 Be6 Qe1 d1B Qg3 Rh1 Qg4 g1B Rf2 R8a7 Ng2 Rc1 Rf4 Bd4 Rf2 Rb1 Bb4 Ra3 Ba5 Ra6 Ba1 Nh6 Bb2 f5 Ba1 f4 Qg3 Ba4 c6 Bh3 c7 Bc6 Qg4 f3 Qd7 Nb6 c8B Nf5 Qb7 Ng7 Bg4 Nf5 Na2 Bb2 Nc3 Nc8 Qe7+ Kd4 Kf6 Rc1 Ne1 Ke3 Ke6 Kf4 Qg7 Kg3 Ng2 Rhg1 Na2 Bbe5 Bd4 Rb1 Bc5 Ba1 Nc3 Bc2 Be3 Rfc1 Bc5 Rgf1 Bd4 Bd1
NK3N1n/1R6/BB2p3/1nP5/1n2r3/1rNQPr1b/1r2nRrb/1Nbn2k1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 h4 g5 a3 bxa3 Kd2 g3 Ke1 g4 Rh3 Qc7 Rh2 Qe5 Rh1 Qg5 hxg5 Bg7 Bb2 Bh6 Bc1 Bf8 Kd2 Kf7 Kd3 Ke6 Ke4 b5 c4 d5+ Kf4 h5 f3 b4 c5 d3 e3 d4 g6 Kd5 g7 h4 Ne2 b3 Qe1 d2 Ng1 d1N Bd2 h3 Ne2 h2 Rg1 h1R Nc1 b2 Bc3 g2 Nb3 a2 Bd2 d3 Nc1 g3 Be2 Ra4+ Bb4 d2 Bf1 Nc6 Bd3 R1h3 Bh7 Nh6 g8N Nc3 Rf1 g1R Qe2 d1N Rf2 g2 Qa6 Nf7 Bf5 Nb5 Ne2 Kc4 Ba5 Nb4 Bd7 Kd3 Nf6 R8h7 Bb6 Nh8 Ke5 R7h4 f4 Rf3 f5 Ra3 Qa8 Rb3 Nec3 Bh6 Qa3 Bf4+ Ke6 Bh2 Nfd5 Rhf4 f6 Rd4 Nd2 b1R f7 R1b2 Rb1 a1B f8N Rc4 Nc7 Rcf4 Na8 Rc4 Na2 Rh4 Rf1 Ke2 Rf2+ Ke1 Nc3 Rhf4 Rc1 Rc4 Ndb1 Rh4 Rd2 Kf1 Rcc2 Rhf4 Rd5 Re4+ Re5 Ba6 Bc8 Bb7 Kd7 e6 Rh5 Bd5 Rf5 Bc4 Rc1 Kf2 Kd8 Bf1 Ba6 Rc2 Rd5 Nd3 Kc8 N1b2 Qa2 Nb4 Re1 Nd1 Kb7 Bb2 Rd7 Bc1 Rg7 Re2 Qc2 Rd2 Qd3 Rdb2 Nh7 Rh1 Re7 g1N Nf8 Bh3 Re2+ Kf1 Rg2+ Ne2 Rc7 Rg1 Kb8 Bd6 Rh2 Rg7 Rf2+ Kg1 Na3 Bh2 Nab1 Rgg3 Rb7 Rg2+
5Nb1/b6N/2Qr4/2Rn3P/B3Bb1b/rpNR1qr1/1PKn2bp/kq3N2 w - - 0 1 illegal: No possible last move
Nq1n1Rb1/B1pB2rP/q6k/2p1P3/3B1q2/Kn1QBn2/1Rr2n1n/3N3b w - - 0 1 legal: proof: f4 a5 g4 e5 b4 axb4 c4 exf4 c5 h5 Nc3 d6 Nb1 dxc5 a3 hxg4 Bb2 b5 Nf3 b3 Ng1 b4 Bc1 b2 Qb3 Be7 Bg2 Bf6 Qd1 b3 Bh3 Bc3 Bf1 Bb4 axb4 Ra5 Bg2 Ra4 Bf1 Ra8 d4 Kf8 Kd2 g5 Kc3 Kg7 h4 f5 e4 g3 d5 g2 h5 f3 b5 f2 e5 f4 d6 f3 b6 g4 d7 g3 b7 Rh7 Qd6 Ra2 Qe6 Nf6 Qd6 Ng4 Nd2 b1N+ Kc4 b2 Kb3 Nh2 Ba6 f1Q Qd3 f2 Nh3 g1N Bb5 g2 Nc4 Ngf3 Nb6 g1N Na8 Nc6 b8B Bb7 Ba7 Qb8 Be3 Nd8 Bd4 Kh6 Ba4 Rg7 Bc6 Na3 Rb1 Nc4 Bb5 Qe2 Ba4 f1B Nf2 Nh3 Nd1 Nf2 Rg1 Bh3 Rf1 Be6 Bb5 Bg8 Ba4 Nc6 d8B Qe4 Bf6 Nd8 Bd7 Qf4 Be7 Qc8 Bf8 Be4 Be7 Qa6 Bg5+ Kh7 h6 Na5+ Kc3 Kg6 h7 Nb3 Bh6 Qg3 Bhe3 Qf4 Rc1 b1Q Rc2 Kh6 Rb2 Bed5 Qb5 Qbg6 Qd3 Qgb6 Kc2 Qb8 Kb1 Ra4 Kc2 Rc4+ Kb1 Qac8 Ka2 Rc2 Ka3 Nfd2 Rg1 Bh1 Rg5 Qcb7 Rf5 Ndf3 Rf8 Qa6+
n4b1K/qp1N3N/nr2rn1r/3N3b/2RnN3/QB3npR/4P2P/q5Bk w - - 0 1 legal: proof: g4 e5 f4 exf4 c4 h5 b4 hxg4 a4 d5 cxd5 a6 b5 axb5 Ra2 bxa4 Ra1 a3 Kf2 Ke7 d4 Kf6 d6 Kf5 d7 c5 d5 g5 d6 g3+ Kf3 a2 Ba3 c4 Nh3 g2 Bc1 g1N+ Kf2 Kg4 Kg2 f5 Qd3 c3 Kf2 f3 Ke3 f2 Kd4 f4 Ke5 c2 Ba3 c1N Qb5 f3 Qa5 Nb3 Bc5 Ra6 Nf4 Nf6 Nd5 Qb6 d8N Qa7 d7 Rh6 Nf7 Nd4 d8N Rb6 Qa3 Na6 Bg2 f1R Nc6 f2 Nbc3 Bd7 Rb1 a1Q Rb3 Be8 Ne4 Rd1 Nb8 f1N Rf3 Nd2 Nd7 Kh4 Rb3 g4 Nfg5 Bh5 Nh7 Nc4+ Kf4 Re6 Nec3 Nf5 Be4 Kh3 Kg5 Be8 Bc2 Kg2 Ne4 Bh5 Rh3 g3 Be3 Rd4 Bb3 Nb6 Bf2 Rc4 Be3 Nd4 Bf2 Nc6 Kf5 Nf3 Rc1 Na8 Bg1 Rb4 Rc4 Ne1 Kg5 Rb6 Kf5 Kh1 Kg5 Bf3 Kf5 Nd4+ Kg5 Rh5+ Kg6 Bg4 Kf7 Nef3 Kg6 Rh6+ Kf7 Bb4 Kg7 Bf8+ Kh8 Bh5
NRn4n/qBq2kP1/2Rr3b/r7/1n2q3/1p2P3/N1bpB1BB/1b2QK1b w - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 hxg5 Qf6 Nd2 Qe7 Nb1 Qd8 c4 d5 g4 f5 e3 h5 c5 b5 g6 b4 g5 h4 c6 f3 c7 a2 g7 b3 g6 f2+ Ke2 h3 Nd2 h2 Bh3 f1N Kf2 d3 Kg2 d4 Qf3 f4 Ne4 d2 Ng3 d1B Qb7 f3+ Kf2 d3 Ke1 Ne7 g8B Nd2 Nf5 Bh6 g7 Ng6 Ba3 Ne4 Bd6 f2+ Kf1 d2 Ne7 Bf5 c8B Bc2 Nd5 Qc7 Rc1 a1Q Nb6 Qa7 Ne2 Nc6 Bc4 Nb4 Bg2 Rh7 Nc3 Nh8 Bf4 Nd6 Be2 Kf7 Na2 Bb1 Qc6 Bfc2 Bb7 Rd8 Qa4 Nc8 Na8 Rd6 Qa3 Bd1 Rc6 Bdc2 Rg1 h1B Qc1 Bg5 Qd1 Rh5 Qe1 Bh6 Bh2 Rc5 Bh3 Rcd5 Rg5 Ra5 Bg2 Kf6 Bba6 Qcb6 Rb5 Qbc7 Rb8 Ke6 Bb7 Kf7 Bg4 Rd4 Ke2 Rd6 Kf3 f1Q+ Kg3 Qc4 Kf2 Bh7 Be2 Bhc2 Kf1 Qe4
2rr3B/3NKr2/7P/1r1RR3/pn1Q1nb1/1Pr1b2k/bB3p1q/bN2N2N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 Kg4 c4 f5 h4 a5 h5 g5 c5 d3 b6 d2 h6 a4 c6 f4 e4+ f3 c7 Nc6 b7 Ra5+ Kc4 d5+ Kc3 d4+ Kc4 d3 b8B Bg7 e5 Qd6 e6 Nf6 e7 Be6+ Kc3 Ba2 e8N Rb5 c8N Nb4 b3 Nfd5+ Kc4 Nf4 Qe2 d1R Qe5 d2 Rh5 Rf1 Ne7 d1B Nh3 g1B Bb2 g2 Nf5 Be3 Nh4 g1R Qd4 Rg3 Ng2 Rf8 Ne1 f2 Ng1 Rf7 Ne2 Rh1 Bc7 Rh4 Nf6+ Kh3 Nd7 g4 Ba5 Rf3 Rc5 g3 Re5 g2 Ng3 g1R Nh1 Rfg3 Bd8 Bg4 Bf6 Rh5 Rd5 Rb8 Be5 Rd8 Kb5 Qb8+ Kc5 Rf3 Bc7 Rgg3 Kd6 Rff8 Ke7 Rg5 Rd6 Rb5 Rd5 Rc8 Be5 Rfd8 Nd3 Rg1 Bf6 Rgc1 Ne1 R1c3 Kf7 Bf8 Bh8 Bg7 Ke7 Ng2 Na3 Qh2 Rd1 Rff8 Nb1 Nf4 Re5 Rf7+ Kd6 R3c4 Qb6 Na6 Bd4 Be2 Rf5 Rf6+ Ke7 Bg4 Ba1 Nb4 Rdd5 Rff8 Qa7 Bb2 Rfe5 Rc2 Qd4 Bc3 Bb2 Rc1 Ba3 Ba1 Bb2 R1c3 Qa7 Rf5 Qd4 Rf7+
Qb2rr2/R5Nk/nq1N2q1/2q2PKp/p2B2P1/bn6/r6R/r1R1RBq1 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 d5 fxe4 d6 bxa4 b5 Ba6 bxa6 cxd6 Bf4 d5 Bc1 d4 Ke2 Kf7 f4 Kg7 c4 h5 g4 d5 f5 e5 a7 d3+ Ke3 a3 c5 a2 c6 d2 c7 d4+ Kf2 e3+ Kf3 e4+ Kf4 h3 c8R h2 Qf3 d1Q Be2 d3 Bd2 Ba3 Rc4 Kh7 Nc3 Ne7 Nh3 Qg1 Rb1 a1R Nf2 Rf8 Na4 Na6 Rb8 Nc6 Be1 d2 Rd4 d1Q Rd6 Qd4 Rb1 Qc5 Bf1 e2 Rd2 e3 Rc1 Nd4 Ne4 Qdb6 Nd6 Nb3 Bf2 e1B Kg5 e2 Bd4 Bg3 Rdd1 Ra2 Re1 Rae8 a8R Be5 Nb2 a4 Nbc4 Nc7 Ra5 Na6 Qa8 Bg3 Nb7 Bb8 Ncd6 Qbb5 Nd8 Qbb6 Red1 e1Q Ne6 Qe4 Ng7 Qec6 Rd2 Qgg2 Rg1 h1R Re2 Qg3 Rgg2 Qf2 Ree1 Qg1 Rh2 Ra1 Rh4 Rh2 Rh3 Rha2 Rh2 Nc7 Ra7 Na6 Nc4 Qe6 Nd6 Qg6+
k3b1R1/2p4R/1B5r/2qp1q1Q/2Br1rN1/n2PKRnN/3rn2P/1R3b1n w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 a6 b5 axb5 Nc3 bxc4 Nb1 c3 g4 h5 a3 hxg4 Qc2 b5 Qd1 b4 Bg2 b3 Bf1 Bb4 axb4 Rh7 Ra5 Rh6 Ra1 Rh8 Kf2 f5 e4 g5 d3 d5 b5 Kd7 b6 Kc6 e5 Kb7 e6 g3+ Kf3 c2 e7 b2 e8R g2 Na3 b1N Ke2 g4 Bb2 c1N+ Kf2 f3 Bd4 g3+ Ke3 f2 Be5 f4+ Kd4 f3 Qe2 Na6 Ke3 Nc5 Nh3 g1R Rf8 g2 Bg7 Nh6 Kf4 Bd7 Nc4 Qc8 Nb2 Nf5 Be5 Na3 Nd1 Rh6 Bd4 Ng3 Ke3 Nce4 Rh8 Ra4 Rb1 Be8 Rh7 Ka8 Bc5 Qf5 b7+ Kb8 Bb6 Rd4 Qc2 Nce2 Qa2 Nc1 Be2 f1R Ndf2 Rd1 Qb2 Rgf1 Ng4 Rd2 Bd1 f2 Bb3 g1Q Bc4 Nce2 Qc2 Qg2 Rg1 Nh1 Qc1 N4g3 Qd1 Re1 Rf1 Qg1 Ba5 Ka7 b8R Rf4 Rd8 Rd4 Bb6+ Kb7 Rd6 Ka8 Rg6 Rf4 Qb3 Rc1 Rg8 Rcc2 Qc3 Rb2 Qe5 Rb4 Ba6 Rbd4 Bc4 Qf6 Qh5 Qf5 Rfe1 Nc3 Re2 f1B+ Rf2 Nce2 Re7 Bg2 Rh7 Qc1 Rf3 Bf1 Ba2 Qc6 Bc4 Qc5
8/1NNN2r1/2nPR1r1/2PRnrN1/kq3B2/2qQbp2/1n1BK2p/nq5n w - - 0 1 illegal: No possible last move, all moves rejected
2rQq3/qr4Nq/1p3BB1/1Pq5/P1p3Bn/5n1B/K2bNrR1/2rR1q1k w - - 0 1 legal: proof: c4 a5 f4 g5 d4 e5 b4 exf4 h4 gxh4 d5 c5 Qd2 d6 b5 Bf5 Qb4 axb4 Nc3 Bd7 Nb1 Bc6 dxc6 d5 Ba3 dxc4 Bb2 Qd4 Bc1 Qd8 a4 Ke7 e4 Kd6 Kd1 Ke5+ Kc2 h5 Kb2 f5 g4 b6 g5 h3 g6 b3 c7 c3+ Ka3 b2 c8Q c2 g7 c4+ Ka2 h4 Qa6 f3 Bg5 c1R Ne2 f2 Ng1 h2 Qa5 f4 Qe1 h3 Be7 f3 Qc3+ Kf4 e5 Kg3 e6 Nh6 g8B Nd7 Qe1 Rh7 Bg2 Qe8 Bc5 Nf5 e7 Bh6 Nc3 b1Q+ Ka3 Ne5 Qf1 Qb4+ Ka2 Bd2 Qd1 f1Q Be6 f2 Nd5 Nh4 Bg4 Nef3 Nf6 Rc8 Bd4 Qc5 Bc3 Qec6 e8B Rb7 Bg6 Qe8 Qb3 Qd1 Qb2 f1R Ne2+ Kf2 Rg1 h1Q Be5 h2 B2h3 Qg2 Qc3 h1Q Nh5 Qgh2 Bh8 Qb8 Bf6 Qa7 Qd3 Qh2 Qd7 Qhc7 Qd8 Qh7 Ng7 Qe1 Be6 Qd1 Rg5 Qe1 Bhg4 Kg2 Bh3+ Kh1 Rg2 Rf2 Beg4 Qf1 Rb1 Rc3 Rd1 Rc1
R2n1B1k/BR4p1/p1P1qr2/2Q3br/2N2N2/2b4q/r1r3PB/1r1bb1BK w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 h5 d3 h6 Qc7 Ra3 Qd6 Ra2 Qxh6 Ra1 Qh2 Nd2 f5 Be2 d5 Bg4 d4 Nb1 Nd7 Be2 Ndf6 Bf3 Nd5 exd5 Qh4 Be4 fxe4 Bd2 Qh6 Bc1 Qh2 Kf1 Kf7 c4 e5 f4 h5 b4 e3 d6 e4 d7 d2 d8B h4 c5 h3 f5 d3 b5 e2+ Kf2 e1B+ Kf1 e3 b6 a3 f6 a2 b7 Bg4 b8B Ne7 Bf4 Kg8 Bg5 Rh6 f7+ Kh8 Ne2 Nc6 Bf4 Rf6 Qc2 d1R Ng1 d2 Qa4 Be7 Bb6 Nd8 f8B a6 Qb4 Rc8 Na3 Bh5 Bb2 Rb1 Nc4 d1R Bd4 Rd2 Ba7 Bd1 Ne2 Qg3 Qb5 h2 Qb6 Rc2 c6 Rb8 Qb4 Qh3 Qc5 R1b2 Rc1 a1B Rb1 Ra2 Rb4 Bac3 Rb7 Rh6 Bd6 Bg5 Nf4 Rf6 B6e5 Ba5 Bc7 Bec3 Bce5 e2+ Kf2 Bab4 Re1 h1R Bc7 Rh2 Kg1 Ba5 Rf1 e1Q Bcd6 Qd2 Re1 Qdd3 Re8 Qe6 Be3 Rh5 Bf2 Bh4 Kh1 Qde3 Bg1 Bg5+ Nh3 Be1 Bdh2 Bac3 Nf4 Qf3 Rf7 Rb1 Rb7 Nf7 Rc8 Nd8 Ra8 Qfh3
8/1pbB4/2rN1q2/BKP1qQ2/4rBpb/3N1k1B/2RrqP2/br2Rn1b w - - 0 1 legal: proof: c4 c5 b4 cxb4 d4 f5 e4 fxe4 g4 a5 c5 h5 Qd2 hxg4 d5 b3 Qb4 Nc6 dxc6 axb4 Kd2 Kf7 h4 Kg6 a4 Kh5 c7 g5 a5 e5 a6 d5 a7 g3 Ra4 Kg4 h5 b2 h6 b3 Kc3 g2 Kb4 e3 h7 d4 Ra3 e4 Ra1 d3 Nf3 g1B Kb5 e2 Kb6 e1B Ra6 d2 Nd4 d1R Ra3 e3 Ne6 e2 Nf4 Bh2 Nh5 Rd2 Rg1+ Kf3 Ka5 g4 Rh1 Bf5 Rg1 Be4 Ra2 Ne7 Ra3 Nf5 Nc3 b1Q Bh3 b2 Nf4 Ne3 Ka4 Be7 c8B Bh4 Ra2 Qa1 Nd3 b1R Bd7 Qf6 Nb5 Rhe8 h8B Rac8 a8Q Rc6 Qc8 Bc7 Nd6 Qae5 Rc2 Nf1 Rh1 Rd1 Rg1 Bc3 Bf4 e1Q Rh1 Bb2 Kb5 Rd2 Bg7 Qe2 Bgh6 Ne3 Re1 Nf1 Bhg5 Rdd1 Bd2 Ba1+ Bb4 Rd2 Bf4 Re6 Qf8 Bd5 Qc8 Qb2 Qf8 Re4 Qf7 Qbe5 Qg6 Ng3 Qf5 Nf1 Nc8 Re3 Qg5 Ke4 Qg6+ Kd4 Qf5 Bh1 Qe6 Ke4 Qf5+ Kf3 Nd6 Rbd1 Bc3 Re4 Ba5 Rb1+
1Q3n2/B3PR1r/n2PB1Bq/2BN1Rqp/pq4n1/2bb3r/4kp1b/KN6 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 h4 g5 f4 exf4 b3 cxb3 Rh2 gxh4 Rh3 Nc6 Rh1 Nb8 g4 Kd7 e4 Kd6 d4 a5 Kd2 f5 Kc3 c5 Kb2 c4 d5 Ke5 b6 a4 g5 h3 d6 c3+ Ka3 b2 Ka2 f3 b7 h2 g6 c2 g7 f4 Qe2 Kd4 e5 f2 e6 f3 Nc3 b1Q+ Ka3 Qg5 e7 Nf6 g8B Bg7 Nd5 Na6 b8B Bf5 Qe6 Nd7 Qg6 Qb4+ Ka2 Bd3 Be2 f1N Be6 Ne3 Qe8 Ng4 Ba3 Nf8 Rf1 c1B Ka1 Bf4 Bd1 h6 Bc2 Rh7 Ne2+ Kc4+ Nec3 f2 Rfg1 Bg3 Ba7 Rc8 Rg2 h5 Rc1 h1Q Rgg1 Rc7 Qb8 Bh2 Rce1 Qh6 Re5 Qg2 Rf5 Qg3 Rf7 Qe5 Rg3 Qeg5 Rgf3 Rc5 R3f5 Kd4 Nf6 Ke3 Nfd5+ Kd2 Bb1 Rc4 Bc2 Rd4 Nb1+ Ke2 Bb2 Rc4 Bbd4 Rc3 Bdc5 Bc4 R5f6 Rh3 Bg6 Bd3 Bd4 Bh8 Rf5 B8e5 Bc5 Bef4 Ba7 Bd2 Bdc5 Bc3+
1N4k1/2rRnpB1/4Rq2/1B1Bbp1r/pK2P1b1/1Q1P2b1/3rB1Nb/n2n4 w - - 0 1 legal: proof: b4 d5 a4 b5 h4 g5 hxg5 e6 c4 dxc4 f4 Bxb4 a5 Bf8 a6 b4 f5 exf5 Ra5 b3 Ra4 Bxa6 Ra1 Bc8 e4 c5 g4 a5 g6 h5 g7 a4 g5 b2 g6 h4 Ra3 h3 Rd3 h2 Na3 b1N Rd4 c3 Nb5 c2 Bb2 c1B Na7 c4 Ne2 c3 Rd7 c2 Nc6 Ra7 Nf4 Rh5 Bb5 Na6 Ng2 Nc5 Nb8 Ne7 g8B Nc3 g7 Nb3 Bh7 Rc7 g8B Bg7 Bg6 Kf8 B8h7 Na1 d3 Bf4 Rg1 c1B Qb3 Nd1 Ke2 h1R Be5 Rg5 Bh5 Bg3 B7g6 Bcf4 Bd4 Bfe5 Kd2 Kg8 Be2 Rh2 Bgh5 Bb7 Rh1 Bd5 Bhf3 Bh8 Bb2 Bd6 Bg7 Rgh5 Rg1 Nc3 Rc1 Nd1 Rc6 Bde5 Re6 Bd6 Bf8 Bhe5 Bg4 Nc6 Bh6 Qf6 Bg7 Ne7 Bgf3 Ne3 Bd1 Bc4 Bc2 Nd1 Be2 Bd5 Qb4 Ba2 Bb3 Bb1 Bd5 Bc2 Ne3 Rf2 Ng2 Bh2 Qc3 Beg3 Qb3 Bde5 Kc1 Nc3 Kb2 Bd1 Ne3 Rg2 Ka3 Rf2 Kb4 Rg2 Bf1 Rd2 Ng2 Bg4 Be2 Nd1
2r5/R1qRNK1R/1r1PNrpQ/b1pBP3/1n5R/2rpn3/2k1Bq2/2b4r w - - 0 1 illegal: No possible last move, all moves rejected
1B2rn2/3N2p1/PQ6/q1b2n1R/Kp2R3/Pr1N1k1q/2R2prR/2Bb1rq1 w - - 0 1 illegal: No possible last move
3Rb1RB/Q1rP2qp/B3rbP1/3KNnp1/2q4n/4Np1r/B7/3B1rkb w - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 a5 b4 axb4 f4 Na6 f5 Nb8 f6 exf6 h4 Be7 Qc2 Bc5 Qf5 gxh4 g5 Bd6 g6 Bf8 Qg5 fxg5 Kf2 Ke7 Ke3 Kd6 Kd4 b5 e4 c5+ Kd3 Ke5 a4 Kf4 a5 Kg3 d6 Kf2 e5 f5 a6 c4+ Kd4 b3 a7 b2 e6 b4 e7 f4 e8B b3 d7 h3 d3 f3 Ke5 c3 d4 c2 d5 h2 d6 Be7 Kd5 Nc6 Ra5 Nd4 Nd2 b1R Ba6 b2 Nf1 Bf6 Ne3 Qe7 d8Q Nf5 Ba4 Ngh6 Qb6 Qg7 Ne2 Nh4 Nd4 Bd7 Rd1 h1B Nc6 Rhc8 Ne5 N6f5 Bb3 Rab8 a8B Rc7 Qa7 Be8 Bd2 c1R Bc3 Rb6 Bc6 Ra1 Ba2 b1Q Ba4 Qb4 Rd3 Rf1 Bd1 Rb1 Rb5 Rbc6 Rb8 Kg1 Rd8 Rb2 d7 Rbf2 Rd2 Rh2 Rb2 Qf4 Rbb8 Re6 Rbc8 Bf7 Rg8 Be8 Rd8 Qa4 Bb4 Rh3 Bf8 Qe7 Bg7 Qab4 Bh8 Qg7 Bae2 Qf4 Ba6 Qc4+
nb6/Q2pN1k1/1RRqqqP1/2bBBR1P/4n3/5qpr/p7/rN1K2rR w - - 0 1 illegal: No possible last move
R2R3K/1P2p1B1/1b3qk1/1rQ5/bN1PN2B/1qp2q2/b1b4p/nBBnr3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 Qb3 dxc4 axb5 f5 b6 fxe4 b5 Qd7 Qa4 Qd8 Qb4 axb4 Ke2 Kf7 Ke3 h5 Kf4 c5 Kg5 h3 g4 e3 f4 h2 b7 b3 b6 b2 d3 h4 f5 e2 f6 e1Q Ra2 h3 Ra3 c3 Rb3 c2 Be3 c1Q Rc3 c4 Na3 b1B Nc2 Qd4 Be2 Nd7 b8B Qb2 b7 Qd1 Ra3 c3 Nb4 Ba2 Bc1 Nh6 Nf3 Nf5 Bg3 Ne3 Bh4 Bg7 Nd2 Nc5 Ne4 Bf5 Bf3 Raf8 Ra8 Qbb3 Rg1 Qe2 Rd1 h1B Bg2 h2 Bh3 Ke6 f7 Qf3 Rd2 Rd8 f8B Kf7 Rd1 Be5 Bg7 Bc7 Bg2 Rhf8 Kh6 Rd5 g5 Bb6 Bf1 Bd7 Kh7 Ba4 Rd2 Nd1 g6+ Ke6 Bg2 Kf5 Bf1 Rf6 Kh8 Re6 Be2 Qf6 Bf1 Ree5 Be2 Nf2 Bd1 Bg2 Bc2 Nd1 Bb1 Re6 d4 Bf1 Rd8 Bd3 Rf2 Qc4 Rg2 Nb3 Rb2 Na1 Rb3 Bc2 Ra3 Bb5 Raa8 Bba4 Nd2 Re2 Ne4 Qd6 Bf8 Qe6 g7 Qb3 g8Q Re1 Bg7 Kg6 Qe8+ Qef7 Qc6+ Q7f6 Qc4 Ra5 Qc5 Rb5
RR3r2/P2B2n1/2bn1P2/3p1q2/1Kp2rrp/4Rb1N/1BQN1q1k/rq1R4 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 c3 c5 Ba3 Bh6 Bc1 bxc3 d3 c4 d4 Bf4 Nd2 Bd6 Nb1 Bc5 dxc5 Qa5 Ba3 Qc7 Bc1 Qd8 f4 Kf7 a4 Ke6 g4 d5 a5 h5 a6 b5 g5 Kf5 g6 e5 c6 e3 a7 c2 c7 b4 g7 b3 Ra6 b2 Rh3 e2 Kd2 Kg4 Kc3 e4 f5 e3 f6 Nh6 Qd3 e1R Re6 e2 Qd1 Rf8 Bd2 c1R+ Qc2 Na6 Rh1 Kg3 Bg2 h3 Rh2 h4 Re4 Nf5 g8R+ Ng7 Re5 Bd7 c8R Bc6 Na3 b1Q Rh1 h2 Bf1 Nc5 Rb8 Qc8 Nb5 Nb7 Nd4 Qf5 Ndf3 Nd6 Bh3 Rf1 Re3 e1Q Bg4 Qe2 Nh3 Qf2 Rh8 Rcd1 Bc1 Rd4 Bb2 Rf4 Kb4 Rg8 Rb7 Raf8 Rb8 Re1 Rf1 h1B Nd2+ Kh2 Ra8 Rc1 Rd1 Bf3 Rb8 Qa2 Ra8 Ra1 Rb8 Qb1 Ra8 Qg5 Bd7 Qf5 Rb8 Nge8 Ra8 Rgg4 Rb8 Ng7 Ra8 Rf7 Rhb8 Rf8
nB2q1n1/3nPp1p/4qBrN/1r2BrRq/4pB2/4R1P1/QNk5/n4b1K w - - 0 1 legal: proof: f4 g5 e4 b5 h4 gxh4 b4 e5 a4 bxa4 b5 Bb4 c3 d6 cxb4 exf4 e5 d5 Bd3 Qf6 Bc2 Qd8 Be4 dxe4 Kf2 Ke7 d4 Ke6 g3 Kd5 Kg2 Kc4 b6 a5 d5 c5 b7 f3+ Kh2 h3 b5 f2 e6 f1R e7 a3 d6 a4 d7 a2 b6 a3 Bb2 Ra6 Be5 Rf5 Ne2 Qe8 d8B Nd7 Qf1 Kb3 b8B c4 b7 c3 Bb6 c2 B6c7 c1N Bd4 Kc2 Qg1 Nb6 Qg2 Na8 Bf4 Rg6 Bbe5 Nd3 b8B Ba6 Re1 Nc5 Kh1 h2 Nbc3 Nd7 Nd1 Bb5 Rb1 a1Q Nb2 a2 Bf6 Bc4 Bde5 Bb5 Rbd1 Qc1 Rd6 a1N Rd5 Qb1 Qf2 Qa2 Qa7 Qb3 Qa2 Bd3 Ra5 Qe6 Nd4+ Kc3 Nf3+ Kc2 Nh4 Bf1 Rd5 Nh6 Re3 Rhg8 Qa3 Rgg5 Ra5 R8g6 Qa2 Ng8 Bh8 Rff6 Nf5 Rh5 Nh6 Rff5 Bef6 Rb5 B6e5 Rf5 Bhf6 Rfg5 Bec7 Rb4 Rf5 Rb5 Bce5 Be2 Kg2 h1Q+ Kf2 Qf3+ Kg1 Bf1 Kh2 Rg4 Rh5 R4g5 Kg1 Qe2 Kh1 Rf5 Rg5 Qh5+
1B1r2n1/1P2Nrk1/R1r3qp/4b3/r4B2/Qqp1RKP1/1n1B1npN/4q2B w - - 0 1 legal: proof: b4 a5 h4 axb4 c4 g5 Rh3 gxh4 Rc3 h3 g3 b5 c5 h2 a4 h1R Bg2 Bb7 c6 Rh5 Bh1 f5 Nf3 f4 Nh4 f3 Ng2 fxg2 cxb7 d5 e4 dxe4 Ke2 Kf7 d4 c5 f4 e5 d5 c4 a5 e3 a6 b3 f5 b2 f6 b4 d6 e4 a7 b3 d7 h6 Qf1 Bg7 Ra6 Rc5 Ra3 Qb6 d8B Nc6 Ra5 Ne5 Ra1 Nd3 Ra2 Nf2 Ra5 Rc6 Nd2 b1R Nf3 b2 Ra6 Qb3 Ba5 Kg6 f7 Be5 Qd1 Kg7 Nh2 Rd8 a8N Ra1 Qf1 b1Q Nb6 Rh7 Nc8 Ra4 Ne7 Q1c2+ Bd2 Qcb1 Rd3 c3 Bc7 Q1c2 Qc1 Qcb1 Ke1 e2 Re3 Qd3 Qa1 Qd6 Qa2 Qg6 f8B+ Kf6 Nc8 Rf7 Bfd6 Kg7 Ne7 Nd1 Rf3 Nb2 Kf2 e1N Bb8 Ned3+ Ke2 Nf2 Qa3 Bd4 Rd3 e3 Bf4 Be5 Kf3 e2 Re3 e1Q
3B4/QpP5/Bn1PR3/5q2/N1N1p1bb/1qq1KB1n/1B1p1nRr/2b1k2b w - - 0 1 legal: proof: e4 c5 h4 a5 d4 cxd4 b4 axb4 Rh3 g5 Rh1 gxh4 Bh6 f5 Bb5 Ra5 Bf1 d5 Qe2 d3 Bc1 d4 Qe3 Rd5 exd5 Nc6 Qf3 Nb8 Qe4 fxe4 Kd2 Kf7 g4 Kg6 f4 e5 c4 h5 a4 e3+ Ke1 e2 Kf2 e1B+ Kf3 b3 c5 d2 c6 d1Q+ Ne2 d3 c7 h3 a5 h4 d6 b2 g5 Kf5 a6 h2 g6 h3 a7 Bh6 a8Q Qf6 g7 Nd7 Qa5 Nc5 Nc3 b1Q Na4 Bh4 Rg1 h1N Bb2 h2 Ra3 Nf2 Rg2 h1B Nb6 Nh3 Qa7 Ne7 g8B Nd5 Nc4 Qb3 Nc3 Nb6 Bd5 Qe1 Na4 Qec3 Ke3 Rh7 Rd2 Kg4 Bf3+ Kg3 Ra2 Bg4 Re2 Bf8 f5 e4 Rh2 Qfe5 f6 Qf5 f7 Bg7 f8B Rh8 Be7 d2+ Ke2 Nd3 Bd8 Bd4 Ra1 Bc5 Re1 Bb4 Ke3 Ba3 Ree2 Rh5 Ba1 Bc1 Bb2 Rh7 Rhf2 Ng1 Nc5 Qfe5 Na5 Be7 Na4 Rh2 B3g2 Nh3 Rf5 Bh4 Rf6 Qf5 Rf2 Nc5+ Bd3 Ncd7 Re6 Ne5 Bf3 Qd5 Ke2 Qdb3 Ba6 Nd3 Ke3 Qh7 Be2 Qf7 Nc4 Qf5 Rf3+ Kg2 Bd1 Kg1 Rg3+ Kf1 Rg2 Ke1 Bf3 Ndf2+
6r1/pr2nPr1/p2B4/RP4r1/b2nRK2/2n2R1Q/n3Np2/n1qBkNR1 w - - 0 1 legal: proof: d4 e5 h4 g5 a4 gxh4 a5 c5 a6 cxd4 Rh3 bxa6 Rh2 Qc7 Rh1 Qd8 f4 exf4 e3 f3 Kd2 f2 Bb5 f5 Bd3 f4 Bf1 f3 Rh3 Bd6 Rh1 Bf4 exf4 Qb6 Rh3 Qc7 Rh1 Qd8 g4 Ke7 b4 Kd6 c4 h5 c5+ Kd5 f5 Ke4 f6 d5 f7 h3 g5 d3 g6 h4 g7 h2 c6 h3 c7 d4 Ne2 Rh5 Ng1 Nc6 Bb2 Nge7 g8R Bd7 c8R Rg5 Rf8 Qc7 Bg2 f1N+ Kc1 Ke3 Ba3 Kf2 Rce8 d2+ Kc2 d3+ Kc3 Nd4+ Kb2 Ba4 Ra2 Ne3 Qb3 Nec2 Ne2 d1N+ Kc1 Na1+ Kd2 Nc3 Rg1 h1R Rh8 h2 Rh3 Rb8 b5 Rb7 Bb4 Qc6 Ra3 Na2 Bd6 Rg7 Rg3 Qc5 Bh3 Qc6 Bg4 Qc5 Rc1 Rg1 Bh5 Rg2 Rg1 h1R Qe6 Rh4 Qh3 Rg5 Bg4 Rh8 Bh5 Rhg8 Bg4 Nc8 Re4 Ne7 Bh5 Bd1 Ra5 Ba4 Bg4 Qc7 Be6 R5g7 Bb3 Qc5 Bd1 Qc4 Rg6 Rg5 Rf6 Qc8 Rg2+ Kf1 Ke3 f2 Nd2+ Ke1 Nf1 d2 Rg1 Qc1 Rf3 Nc3 Bc2 Na2 Kf4 d1N+ Rfe3 Ndc3 Bd1 Qb2 Rf3 Qc1+
Kq1Rbq2/2pN4/3n3n/ppP2r1P/Qr1kp2b/n2Nr1N1/3B1R2/4B2N w - - 0 1 legal: proof: e4 f5 e5 b6 e6 dxe6 Bd3 e5 Be4 fxe4 d4 Ba6 a4 Kf7 d5 Nf6 d6 Ke8 a5 Bc8 a6 Ng8 Qd5 Nf6 Qd2 Ng8 Qa5 bxa5 b4 h5 g4 e6 d7+ Kf7 b5 Bd6 b6 Bf8 b7 Qe7 gxh5 Qa3 d8Q Qc5 Qd6 Ke8 Qb6 axb6 Ke2 Ke7 f4 Kd6 c4 g5 h4 e3 Kf3 g4+ Ke4 e2 a7 e1N h6 b5 h5 g3 f5 g2 h7 Ne7 f6 Nc2 f7 Rg8 h8N Nbc6 b8N Nf5 Ng6 Nh6 Nd7 Ne7 Rh2 Nef5 Nc3 Be7 f8B Na3 Nh3 g1Q Ngf4 Rg4 Rf2 Kc6 Be3 Bh4 Ne2 Qe7 Bg7 Qf8 Bd2 Bb7 Rd1 Nd6+ Ke3 e4 Kd4 e3 Ng3 e2 c5 e1R Be5 Rd8 a8Q Re3 Bh8 Rg5 Nd3 Rf5 Bf6 Qe1 Bg5 Qe2 Be1 Qg4+ Bf4 Qg6 Rdd2 Re8 Qd8 Bc8 Qg5 Re7 Qg4 Ref7 Qd1 R7f6 Qa4 e5+ Kc3 e4 Bg5 Rff3 Kd4 R6f5 Rd1 Re2 Bgd2 Rfe3 Rf3 Qe6 Nhf2 Bb7 Nfh1 Rh2 Bc3 Rb2 Rf2 Bc8 Bcd2 Qg6 Nf6 Be6 Nd7 Bf7 Nf6 Be8 Nd7 Kb7 N3e5 Rb4+ Kd5 Kc8 Kc6 Kd8 Bc3 Ke7 Nd3 Ke6 Bed2 Ndc4 Kb7 Kd5 Be1 Qb6+ Ka8 Nd6 Bcd2 Kd4 Nb2 Rd5 Nf6 Rf5 Bc1+ Ke5 Rdd2 Ndc4 Rd8 Nd6 Nd3+ Kd4 Nd7 Bg6 Bcd2 Bf7 Nf1 Be8 Nfg3 Qb8+
n1K5/3N3p/R1P2pbn/2p2nrp/6B1/n1R2B1P/kBqb3B/1rQ2bN1 w - - 0 1 legal: proof: f4 e5 a4 exf4 c3 b5 axb5 g6 Qc2 Qf6 Qf5 Qe7 Qh5 Qd8 b4 gxh5 c4 c5 Ra2 d6 Rc2 cxb4 c5 Ba6 c6 Bc8 Rc5 dxc5 Kf2 Ke7 Kf3 Ke6 Ke4 a5 g4 f6 d4 b3 d5+ Kd6 b6 a4 b7 f3 h3 f2 g5 a3 g6 a2 g7 a1N Bb2 Na6 b8B+ Nc7 Nc3 Be6 Na4 Qc8 Bg2 f1B Bf3 Qd8 Nb6 Bg2 Nd7 Bf7 Kf5 Nc2 e4 Ra1 Rh2 Bf1 e5+ Ke7 e6 Kd6 e7 Rb1 e8Q Nh6+ Kf4 Nd4 g8B Bg6 Be6 Qc8 Beg4 Rg8 Qe1 Ndf5 Rc2 Qa6 Qd1 Qe2 Rc3 Qc2 Qc1 Rg7 Ba7 Na8 Bb8+ Ke7 d6+ Ke6 Nb6 Rg8 d7 Bg7 d8R Bf8 Ba1 b2 Nd7 Rg7 Be5 Bd6 Rf8 Bc7 Rb8 Ba5 Rb6 Rg8 Ra6 Bb4 Bd1 Kd5 Bd6 Ba5 Bdf3+ Kd4 Re3 Kc4 Rc3+ Kb4 Bb8 Qf2 Ke4 Qc2+ Kd5 Rg7 Ke6 Rg8 Rc4+ Kb3 Rc3+ Ka2 Be5 Be8 Bh2 Rg5 Nb6 Bg6 Kd7 Nc7 Kc8 Na8 Qf4 Rd1 Qd2 b1N Qc1 Na3 Nd7 Re1 Bb2 Rd1 Qe3 Rb1 Qc1 Bb4 Rb3 Be1 Rc3 Bd2
k1n2q2/1p3BNb/b2br1BQ/6P1/pr2pp1R/R2PB3/r5r1/K2n1B1N w - - 0 1 legal: proof: b4 g5 h4 gxh4 f4 c5 bxc5 d6 a4 Be6 e4 Ba2 e5 dxe5 a5 exf4 a6 f3 Nc3 Nxa6 Nb1 Nb8 g4 Kd7 c4 Kc8 g5 f5 c6 a5 c7 h5 c5 e5 Rh3 f2+ Ke2 f4 Qb3 e4 Kd1 Na6 Kc2 Nb4+ Kb2 Bd6 Ba6 f1B Qe3 Nc2 Qb3 Rh6 Ne2 Qf8 Ng3 Ne3 Na3 Ne7 Nc2 Rf6 Rh1 h3 Nd4 h2 Ndf5 h4 Ng7 h3 Qd1 Bd3 Qh5 Bg8 Qh6 Re6 Ra2 Ra7 Ka1 Nd1 Bb5 Bc4 d3 Ra6 Be8 Bh7 Be3 a4 Bg6 Rb6 Ra3 Ba6 Rf1 h1R Rf2 Rg1 Rh2 Rf6 Rh1 h2 Bf7 Kd7 c8B+ Kc7 c6 Kb8 c7+ Ka8 Bf5 Rb4 c8B Rg6 Bcd7 Nc8 Bh3 Rf6 Bdf5 Rg6 Bf1 Re6 Ne2 Rg4 B5g6 Rg3 Ng1 Rg4 Nh3 Rg1 Nf2 Rg3 Rg1 h1R Rg2 Rh2 Nh1 Rg4 Rg3 Rc2 Rh3 Rgg2 Rh4 Ra2+
N7/4kb2/1nR2p2/Pp1bp1NB/b1qbN2Q/P4B1K/rrp3N1/1q2R2b w - - 0 1 illegal: No proof kernel
n5k1/3R1N2/1ppP1br1/Q3R2p/4b2B/KRr4p/1Prr4/BRr1nN1n w - - 0 1 illegal: Other
1N1qkN2/Np1p2K1/3q3r/b2b4/rP3pn1/1BB2N2/p1n1P1pR/2RQ1r2 w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 c5 d4 cxd4 Nd2 h5 Nc4 hxg4 Nb6 Qc7 Nxc8 Qc4 Rb1 Qxa4 Ra1 Qa2 Kf2 a5 h4 g5 c4 f5 c5 f3 Kg3 f2 b3 d3 h5 d2 c6 f4+ Kg2 a4 c7 g3 Kh3 a3 Kg4 g2 Kf5 g4 Kg6 g3 h6 Ra4 h7 Na6 Na7 Bb4 c8N Nf6 Nf3 g1Q Bh3 f1R Bb2 g2 Bc3 Qd4 Rc1 Ng4 Ne7 Ba5 Rh2 Qd6+ Kg7 Nb4 Nec6 Nc2 b4 Qa1 Nb8 a2 Qe1 d1B Qd2 Rf8 h8N Rf6 Ng6 Re6 Nf8 Rh6 Qe1 Qb2 Qd2 Qb3 Qd4 Qc4 Qd2 Qc8 Qd5 Qd8 Qb3 Ne5 Be6 Ng4 Bd5 Na1 Qb1 Bb3 Qd3 Bc4 Qd1 Nc2 Bg8 Bd5 Be6 Bc6 Bb3 Bd5
3k2N1/P1p1bRb1/p1b2qRR/1b2Q3/1p1P4/Br1br1p1/N3R2p/4BKn1 w - - 0 1 illegal: No proof kernel
N1QN2Nn/p4np1/b2RnPpR/b2K4/2pB2p1/kp1PN1pr/8/2rB4 w - - 0 1 illegal: No proof kernel
2n3b1/r1b1Qr2/q4n2/3P1b1k/q3rBrr/1rPBKB2/qR4Rr/N2NB3 w - - 0 1 illegal: No proof kernel
1N3qn1/RKBR2nb/1Qr2N2/r3rn1b/4qP2/P2r1B2/1N1N2q1/2r1r1bk w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 g4 Kd5 a3 h5 c3 b5 g5 e5 g6 b3 g7 b4 Nf3 b2 Rh2 e3 Kd3 e2 Rg2 e1R Be3 h3 Rg5 h2 Ra2 h1N Qc2 h4 Qg2 h3 Qg3 b3 Nh2 Nc6 Nf3 h2 Nbd2 b1Q+ Rc2 b2 Qh4 Bc5 Qf2 Ng3 Ng1 h1Q Rg4 Nf5 Be2 Qf8 Rg2 Nce7 Nc4 e4+ Kd2 d3 Qf3 Rh6 Qh5 Ra5 Nf3 Rc6 Qh6 d6 Rg6 Qg2 Bf2 Ba7 Bb6 Bd7 Re6 Be8 Bc7 Bh5 Rc1 Bg1 Rd1 Qa1 Qf6 b1B Nb2 Qa2 Qg6 Qc4 Rf6 Qb4 Rf7 Qb7 Nh4 Qba8 c4+ Kd4 c5 d5 Qd6 Qb7 Qd8 Qa8 Qb8 Bc2 Qb6 e3+ Kc1 Ke4 Nf3 d4 Nd2+ Kd5 Bg4 Qe4 Bf3 e2 Nbc4 Bb1 Kb2 Qb7 Kb3 Qba8 Nf1 d2 Nb2 d3 Kc3 Qb7 Kb3 Kd4 Kb4 Bc2 Rc1 d1R Nd2 Bb1 Rc4+ Ke3 Rd4 Kf2 Kc4 Ra8 Kb5 Rc1 Ra4 Kg3 Ra7 Kh2 Ka5 Nf6 g8N Ng7 Kb5 Nef5 Rd7 Bc2 Nh6 Ng8 Ng4+ Kg3 Nf6 Kh2 Bg4 Qg2 Bf3 Kh1 Ka5 Rf1 Kb5 e1R Ka5 Re5 Kb5 Qbb8 Ka6 Qbe8 Kb7 Rfe1 Bb8 Rd6 c6 Qee7 c7 Rc6 c8N Bb1 Ra4 Raa5 Bc7 Qb4 Ne7 Qe4 Ned5 Bc2 Nb4 Bb1 Na6 Bc2 Nf1 d2 Nb8 d1R Nd2 Bb1 Nb3 Rd3 Nd2 Rac5 Ra8 Ra5 Ra7 Ba2 Ng4 Baf7 Nf6 Bfg6 Qe3 Bh7 Qf2 Qe7 Qb6 Qf8
1nNb3R/6n1/2r1nnBb/q6R/1k3P1q/1brQ2b1/1N3rPn/Bb2KBB1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 a4 Kd7 d4 Kc6 f4 e5 d5+ Kc5 d6 h5 d7 b5 a5 h3 a6 e3 a7 e2 Ba3 e4 Rh2 c3 Qb3 h4 Qa2 c2 Kf2 c1N Rh1 e1B+ Ke3 h2 Qf7 h3 Qg7 Ne2 Ra2 Bg3 Kd2 e3+ Kd1 Rh6 Qg6 Nd4 Rb2 e2+ Kd2 e1B+ Kd1 Nf6 Be2 Ne6 Qg4 c6 Qg7 Qa5 d8B Rg6 Qh7 Bh6 Nf3 Bb7 Rf1 h1N Qg8 h2 Ne5 Nf2+ Kc1 h1N Nc4 N2g4 Kd1 Nh2 Rf3 Bh4 Qh8 Ng3 Rf2 Nf5 Bd3 Nfg7 Rf1 Beg3 Rc2 Bc8 Bc1 b3 Nc3 b4 Ra2 b2 Rh1 b1Q Qh7 b3 Ne4+ Kb4 Bf1 c5 Bb6 b2 Ned6 Bd7 Ke2 Ba4 Nc8 Bb3 Be3 Qa1 Bg1 b1B Nb2 c4 Bbd4 c3 Ra3 Qg5 Ra5 c2 Kd2 Qg4 Rh5 c1R Be5 Qa5 Bed4 Rg5 Qd3 Rg6 Be5 Qg5 Ke2 Rc2+ Kd1 Rf2+ Ke1 Qg4 Bd4 B4g5 Be5 Qh4 Bd4 Nc6 Be5 Rb8 a8B Rb7 Bd4 Nb8 Be5 Rc7 Be4 Rc3 Bd4 Nfd7 Bf5 Bd8 Bf6 Rg5 Bg6 Rgc5 Be4 Rc6 Qd4+ R3c4 Na4 Bg5 Bg6 Ng4 Rh6 Qh3 Rh8 Bh6 Qd3 Qh2 Be5 Ndf6 Ba1 Rc3 Nb2 Qhh5 Rh3 Nh2 Rh4 Qhg5 Rh5 Qh4
qQKn4/B3Rr1q/1qPN2B1/2kNn1r1/5Rnb/n1Nb2rP/5Nrr/6n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 f5 c4 g5 a5 b5 e5+ Kc5 a6 d5 e6 b3 a7 d3 e7 b2 e8N g3+ Kf3 d4 Na3 b1N Bb2 d2 Nc2 b4 Ra2 g2 Ra1 b3 Nh3 g1Q Nb4 d3 Nf2 Nd7 Qc1 d1R Nh3 d2 Bd3 g4+ Ke2 g3 Kf3 g2 Ra2 Nh6 Be5 b2 Bf6 Na3 Nd6 b1Q Bg7 Ba6 Bc2 Be7 Nc8 Ne5+ Ke2 Nhf7 Nf2 f3+ Ke3 f4+ Ke4 Bh4 Kf5 Qb6 Bf6 Nd8 Nd6 Re1 Nd5 d1R Ra1 Rd2 Nc3 Re3 Qb2 Qgd1 Bd3 Qa4 Re1 g1N h3 Rg8 Rf1 Rg2 Bc2 Rc8 a8N Qac6 Nc7 Qa8 N7d5 Rc7 Ra2 Rcg7 Be7 R7g5+ Kf6 Rh2 Bg6 Bb5 Bf8 Qe4 Ke7 Rde2 Ng4 Reg2 Nf2 Qd3 Qb1 Qf5 Re2 Qe4 Nfd1 f2 Bg7 f3 Qb4+ Kd4 c5+ Bc4 Qb3 Bd3 c6 Kc5 Ree1 Qba6 Qb8 Qb6 Bf7 Qh7 Bg6 Re4 Ke8 Reg4 Re4 R2g3 Rfe1 f1R Rf4 Rgg2 Nf2 R4g3 Re3 Nef7 Re7 Ne5 Ng4 f2 Bh6 Nec4 Kd7 Ne5+ Kc8 Rb1 Ndb5 f1N Nd6 Ne3 Nf2 N3g4 Rd4 Rf5 Be3 Rb4 Re4+ Rd4 Rf4 Rf7 Bc1 Rb4 Bd2 Rd4 Be3 Nec4 Kd7 Qba5 Nb6 Kb4 Nfd1 Rd5 Kc8 Rg5 Nf2 Qb5 Bd4 Nce5 Nbd5+ Kb3 Ba7 Qb6 Nde4 Kc4 Nd6+ Kc5
K3r2Q/b1bR3P/P1n4r/1qn1NR2/k1B1r3/2R4b/2NrrB1R/3n1bqb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc6 c4 g5 a4 b5 h5 f5 a5 d3 a6 d4 e5 f3 e6 b3 c5 d2 e7 d3 Ke3 g3 e8R b4 h6 Kb5 c6 b2 c7 f2 Ra2 g2 Nf3 g1B Ne1 b3 Kf3 f4 Ke4 f3 Ra3 g4 Bg2 f1R Ra1 f2 Nf3 g3 Qe1 d1R Re6 d2 Rh4 Qd7 Rh1 Nc6 Nh2 Bd6 Re7 Nf6+ Kd3 Ne4 Na3+ Ka4 Kc4 b1B Kd5 b2 Ng4 Nc5 Qe5 Rfe1 Rh2 Re4 Bf1 g2 Bc4 f1B Nc2+ Ba2 Qc3 b1R Ne5 Rb2 Qd4 Bb7 c8R Bf2 Rf8 g1Q Rf5 Rae8 Qc3 Ba8 Rg7 Qb7 Rd7 Bc7 Qd4 Qb5 h7 Re6 Qc3 Rh6 Rb1 Rde1 Qd4 d1N Be3 Re8 Rc1 Re2 Qc3 Bg3 Bf2 Bb8 Qd4 Ba7 Qc3 Rhh4 Kd6 Rh6+ Kc7 Bf4 Qg3 Bb7 Qg8 Bc8 Qh8 Rd2 Bd3 Bd5 Bc4 Rde2 Nb4 Rbd2 Rc3 R4e3 Nc2 Bh1 Rg7 Be6 Rd7 Re4 Rg5 Beh3 Rf5 Nd8 Kc8 Bb6 Kb8 Ba7+ Ka8 Bg3 Nd3 Bc7 Ne5 Nc6+
2qk4/P1r3B1/4Bq2/n1n2bQb/R1Nbn1NK/1RR4b/1R1Pn2b/1r2qn2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 c5 g4 h5 e4 b5 a4 f5 a5 h3 e5 c3 e6 f3 Kg3 f4+ Kh2 c4 e7 f2 g5 b3 g6 b4 g7 b2 a6 f3 Kg3 h4+ Kf4 h2 Kg5 c2 a7 h3 Ra2 b3 Ra3 c3 Ra1 Nd7 Ba6 f1N Be2 f2 Nf3 Rb8 Ra2 Rh7 Ra3 Nc5 Ra2 Nf6 g8R Nfe4+ Kf4 Be6 Nd4 Qc8 Na3 b1Q Rg3 b2 Rhg1 h1B Rf3 h2 Re3 Bf3 Bd3 h1N Qe1 Bh3 Rg3 Bh5 Rgf3 Nhg3 Nf5 Rf7 Bc4 Ne2+ Ke5 Qa1 Be6 b1B Bb2 c1N Nc4 c2 Rc3 N1b3 Ra4 c1B Nh6 Na5 Ng4 Rh7 Kf5 Rg7 Ba3 Bb2 Rb3 Be5 Rfc3 Bh2 Bb2 Rh7 Qd1 Bg7 Qc2 Rb6 Qd3 Bd4 Qe3 Bc2 Qh6 Qe1 Ba1 Nf6+ Kg5 Bf5 Kh4 Nfe4 Qg5 Rg7 Bd5 Kd7 e8R Rf7 Re7+ Kd8 Be6 Rg7 Rb7+ Re7 Rba3 Rb2 Rab3 Rb1 Qh6 Rc7 Rb2 Nfg3 R7b3 f1Q Qg6 Qf4 Qh6 Qe5 Qg5+ Qf6 Rba2 Be5 Rf3 Qe7 Bc3 Bh8 Rab2 Be5 Re3 Nf1+ Rg3 Bd6 Bg7 Qf6 Rc2 Be5 Rcb2 Qd1 Rgf3 Bd4 Rfc3 Qe1+
3NR3/1nk1n1rn/K1N2q1r/b7/2b2qBP/R1PRr1Bn/1qQ2b2/1q1q2R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 Kd3 b5 h4 g5 e4 d5 a4 Kd7 c3 g3 e5 f3 a5 f2 e6+ Kc7 e7 g2 e8R f4 a6 g4 a7 g3 Re2 f3 Qa4 b3 Nh3 g1N Re7+ Nd7 Be2 f1R Re3 b4 Ba3 f2 Bg4 g2 Re6 b2 Rf6 b3 Be7 Rh6 Rf7 Ba6+ Qc4+ Nc5+ Kd2 d3 Ke3 d4+ Kd2 Nf6 Ra2 Re1 Be6 f1Q Bg4 Re3 Be2 Qf4 Bf3 Nh7 Qa4 Nb7 Ra3 Bc4 Ng5 Nh3 Bg4 g1B Rf6 Qdd6 Nf7 Bf2 Rg1 Rd8 a8R Rd7 Rf5 Qf6 Bc5 Bd6 Nd8 Rg7 Rd5 Be7 Ba7 Bb4 Bc5 Ba5 Be7 Qf7 Bf6 Qg6 Be5+ Qd6 Rb8 Qf6 Bg3 Qdf4 Kd1 d2 Ra8 Rd3 Ke2 d1N Nd2 b1Q Nf3 b2 Ne5 Ne3 Qc2 Nf5 Nec6 Ne7 Rd6 Qa1 Rb8 b1Q Ra8 Bd5 Rb8 Re3+ Kd2 Re1+ Kd3 Qab2 Ra8 Bg8 Rd5 Re6 Kc4 d3+ Rd4 d2 Rb8 Bb4 Kb5 d1Q Ka6 Re3 Rd3 Ba5 Nf7 Nd6 Re8 Nb7 Nd8 Bc4+
3qRK2/1nr4q/BNbbb1NB/4r1nb/4Pr2/k1PB3B/4r2q/rQ2nR2 w - - 0 1 illegal: No possible last move
b4R1N/1r3b2/2PNK2P/2q2n2/3qB1qb/n1q1nn1B/1BQ2rrB/R1q4k w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 b3 a7 e2 f6 e1Q c3 g4 f7 b4 h6 b2 Qe2 g2 Na3 b1R Nh3 g1Q Bf4 g3 Qg2+ e4+ Kc2 Bb7 Be5 Nc6 Bc7 Be7 f8B Bh4 Qe2 e3 Kd3 b3 Bb4 b2 Bca5 g2 Bc5 Qc1 Nc4 Nge7 Qf2 e2 Ng5 e1Q Ne4 Rf8 Bcb6 Nf5 Ne3+ Ke5 Kc4 d5+ Kc5 d3 c4 d2 Nd6 d1N Qf3 d4 Bc7 d3 Qh5 Kf4 Kd5 Kg3 c5 d2 Bcb6 Ne5+ Ke6 Nf3 Nb5 Qd4 Nd6 Rf7 Bb4 Rg8 Bc3 Ba8 Bc7 Qgf2 Rh2 g1Q Bh3 Qfe2 Rh1 Qgf2 Rf1 Kh2 Bb8 Rg2 Qg6 Qg1 Rf2 Kh1 Qh7 Rb7 Nf7 Qb5 Be5 Qba4 Nc4 Nde3 Rf1 d1B Nh8 Bb3 Bh2 Qg4 Bce5 Qec3 Qc7 Qa3 Qc6 Qcd4 Qe4 Qcc3 Qc2 Rd1 Rf2 b1N Bg7 Rd2 Bf6 Ba4 Nd6 Qac1 Bfe5 Be8 Rf1 Rb5 Bg7 Na3 Bge5 Be4 a8B Rdf2 Bc6 Rb7 Bd5 Bd3 Be4 Bdb5 Bg7 Bbc6 Bge5 Rg7 Bf6 Ba8 c6 Rb7 Bhe5 Qdc5 Rb1 Rd2 Rb4 Q3b2 Qb3 Nd5 Bg3 N3d4+ Ke5 Nfe7 Bh2 Qbc2 Rf5 Nf3+ Ke6 Qd3 Ba1 Qdc3 Qc2 Qgd4 Rb1 Rdf2 Bb2 Ne3 Ra1 Qh5 Rg5 N7f5 Rg8 Qg4 Rf8 Bf7+
n1N2bn1/1P6/Pb4b1/rBNN1N2/1rRQ4/b1n3Rr/bnb3Kq/2B1k2b w - - 0 1 illegal: No possible last move
1bN1Q2n/2rBn2K/Bq1B3P/1R5q/1b2nn1P/k4N1n/2bRq2n/B4rq1 w - - 0 1 illegal: Other
2n3b1/3qn2R/2nbP3/n1nr2B1/Nk1q4/1r2nN1K/r2bBPb1/2B1RBQ1 w - - 0 1 illegal: No proof kernel
q3b2B/n1q3r1/2P1K1Q1/r1nRnR2/1nB3Nk/qqR5/q5RP/1rbq2N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 e4 Kg5 c4 d5 c5 f5 e5 b5 a5 b3 a6 g3+ Kf3 g2 c6 b4 a7 d3 e6 b2 e7 b3 e8R d2 Ra6 d4 Ra1 d3 Nh3+ Kh4 Re1 g1N+ Kg2 g5 Ra6 f3+ Kf2 f4 Re3 g4 Qe1 d1Q Nc3 b1R Na2 b2 Rb6 d2 Nb4 Qc7 Nd3 Bh6 Rb3 Nd7 Rb4 Nc5 Rb7 Bd7 Ne5 Qb3 Ng5 d1Q Re2 Ne7 Nd3 Nc8 Ne4 Rh7 Rb8 Be8 Rd2 Rg7 Nc3 Ne2 Rb5 Nd4 Rg1 Nc2 Ne5 Nb4 Rg2 g3+ Kg1 Bg5 Bc4 f2+ Kf1 Qa3 Ng4 Qdb3 Ke2 f1N Kf3 Ne3 Rd5 Bh6 Nf6 Ng4 Qe4 Bg5 Qg6 Ne5+ Ke2 Bh6 Ng4 Bg5 Be3 f3+ Kd2 f2 Ne2 f1Q Ng1 Qf8 Ra5 Be7 Bd4 Bg5+ Ke2 Bc1 Rb5 Rb8 a8R Na7 Ra5 Rb5 Bc3 Nf7 Kf3 Qba2 Rad8 Q2b3 Rf5 Qba2 Rdd2 Ne5+ Kf4 Q2b3 Ra6 Ra5 Rb6 Qf6 Rb8 Qfd8 Rb5 Qa8 Bd4 Ncd7 Rd5 Nc5 Bc3 Ra1 Rd3 b1Q Re3 Q1a2 Rd5 Bb2 Bd4 Rc1 Rc3 Rb1 Rg5 Bc1+ Kf5 Bf4 Kf6 Be3 Rf5 Bc1 Re2 Na4 Ke6 g2 Nh3 g1Q Rg2 Qgd1 Ng1 Rh7 Be3 Rd7 Bh6 Rf7 Bg7 Rd7 Bh8 Rh7 Rf1 Rg7 Rf5 Nc5+
1q2Bn2/2P3bk/1nRr1nNB/r4rPb/bb3R2/1N2R1Qq/2Kr1R2/r6r w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 g4 e5 c4 d5 a4 b5 a5 h5 g5 d3 a6 h3 a7 e3+ Ke1 e4 f5+ Kh7 f6 d2+ Ke2 b3 c5 d4 f7 b4 c6 b2 c7 h2 Ra2 b3 Bg2 d3+ Kf1 e2+ Kf2 e1B+ Ke3 h4 Ra6 h3 Ra4 Bg4 Ra6 Bg7 f8R Nd7 Rf4 Ngf6 Qc2 d1R Ra3 d2 Qc3 Nf8 Rf3 Bh5 Rg3 Qb8 Kd4 e3 Kd3 e2 Nf3 Rg8 Rg1 h1Q Ra6 h2 Nh4 Rh8 Na3 b1B+ Nc2 b2 Ng6 Ba2 Rb6 b1N Rc6 Bb3 Rf1 Na3 Rf4 Ba4 Bb2 Nc4 Nd4 Nb6 Nb3 Ra1 Qe5 d1R+ Kc2 Rd6 Re3 Bb4 Bf1 e1R Bb5 Qg2+ Rf2 h1R Qg3 Ref1 Bc3 Qe8 Bd4 Rad8 a8R Qh3 Ra6 Ra8 Rc4 Qd8 Be8 Qb8 Be5 Rfd1 Rcf4 R1d5 Bc3 Rf5 Bd4 Nbd5 Rb6 Ra5 Rc6 Nb6 Bc3 Rg8 Re7 Rd7 Ree6 Ng4 Rd4 Bf6 Re1 Rgg7 Ree4 Rd8 Bb2 Rgd7 Re3 Rdd5 Rdf4 R8d6 Be5 Bh8 Bg7 Nf6 Bh6 Bg7 Nh8 Rd4 Ng6 Rd2+
B1r1R1nn/P1b3rb/1rBqB1P1/2KN4/b1Rr3B/r2k3q/Qr1N4/1b2q3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 e4 Ke5 a4 d5 g4 b5 g5 h5 a5 f5 a6 b3 c5 h3 c6 b2 c7 b4 Ke2 h4 Kd3 f3 Qa4 f4 Qb5 f2 Qb6 b3 Qc6 f3 Ra2 h2 Bh3 f1Q+ Ne2 f2 Qb6 Bf5 c8B Bd6 Bd2 Nd7 Be1 Bh7 g6 Bc7 Bg4 h3 Nd2 b1R Qa7 b2 Rg1 h1Q Qb7 h2 Ra1 Qh3+ Ng3 f1R Bd1 Rf2 Kc2 d3+ Kc3 d4+ Kc4 Rf6 Rf1 Rb6 Nh5 Qf8 Qc6 Qd6 Rf8 Q1f1 Bc2 h1R Bf2 Qe1 Bh4 Rf1 Ra4 Rf7 Bd1 Rg7 Nf6 Kf4 e5 Ke3 e6 Ra7 Nde4 d2 e7 d3 Bf3 d1R e8B d2 Qd5 Ra8 Bg2 Ke2 Kd4 Ne5 Be6 Nf7 Rc4 Rc8 a7 Ra1 Nf2 b1B Bc6 Ra3 N2e4 Rcb8 Bh1 Rb2 Ba8 R8b6 Bg2 Ngh6 Rb8 Rc8 Bc6 Ng8 Bh1 Qd7 Kc5 Nh8 Ra8 Rc1 Rb8 d1B Nd2 Ba4 Qg2+ Kd3 Nd5 Qd8 Qh2 Qf6 Bg2 Rd8 Ra8 Rd6 Re8 Rd8 Bh1 Rd1 Qg2 Rc8 Nf3 Qfe5 Ba8 R2b4 Qa2 Rb2 Bg2 Qf4 Nf6 Ke3 Bh1 Rdd3 Nd2 Rd4 Bhc6 Kd3 Nd5 Qd6#
Bq4b1/bRnr1n2/2rq1rK1/1B2r1NQ/2q3qP/2Bkn1B1/P7/Nn2n2R w - - 0 1 illegal: No possible last move, all moves rejected
2K4Q/3Nqq1n/1R6/nb1P1B2/PNqn1r1r/n1qR2b1/N2B3N/r2krq2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 f5 a4 h5 g4 b5 e4 b3 d4+ Kb4 g5 c5 g6 b2 g7 f3 d5 f2 Nd2 Kc3 Rh2 b1R Qe1 Kc2 Bg2 f1Q Nb3 f4 Qg3 h3 Nd4+ Kd1 Nc2 f3 Bh6 h4 Nd4 c3 Qg6 c2 Be3 c1Q Qg5 f2 Ndf3 b4 Qe7 c4 Rh1 b3 Nd2 c3 Qb7 h2 Qb4 h3 Qc4 b2 Ngf3 c2 Nb3 Ba6 Ke6 Nc6 e5 Bd6 Bg5 Rh4 Ra3 Na5 Bd2 Bb5 Qc8 Nf6 g8N Nh7 Ne7 Ra1 Nc6 b1N Nb4 Qh8 Rg1 h1R Nh2 Bc7 Qg8 Rf8 Be4 Rff4 Rg6 Qe2 Rh6 Re1 Bf5 f1Q Rg6 Qg7 Qh8 Qc4 Rf6 Qb2 Nc1 Qbc3 Nca2 c1N Rb3 Qg6 Ke7 Bd6+ Kd8 Ne2 e6 Na3 e7 Qf7 e8N Nd4 Rg6 Qfe2 Nf6 Bc7+ Kc8 Qee7 Nd7 Be5+ Rc6 Bc7 Ng4 h2 Rb6 h1Q Nh2 Qhf1 Rb7 Qc2 Rd3 Q2c3 Rb8 Rfe4 Rb6 Bg3+ Nc5 Ndc6 Nd7 Ref4 Kc7 Nd4+ Kb8 Ndc6+ Kc8 Nd4+
r5BR/1q1Rqq2/1B1Q2PN/n3Pb1q/B4b2/1B1rq1n1/K3b1bk/rN2r3 w - - 0 1 illegal: No possible last move, all moves rejected
2Br1nrb/4bQ2/2RnP1P1/Nr3n2/1BbbkBNn/Kr1q3q/5n1B/R7 w - - 0 1 illegal: No possible last move, all moves rejected
n1b1qk2/P3b3/K1bbBPr1/N1r3B1/1B3RNR/6bb/n2r4/b2BQ1qb w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 b5 f4 g5 c4 b3 f5 d3+ Kd2 g3 Kc3 d4+ Kd2 e3+ Ke1 e2 Kd2 b2 f6 g4 a5 g2 a6 e4 c5 b4 a7 g3 c6 b3 c7 Bh3 c8B Rh6 h5 Na6 Bb7 Be7 Ra2 Nb4 Rh2 Rc8 Qe1 Rg6 h6 Rc5 h7 Kf8 h8B Qe8 Qf2 e1B+ Kd1 e3 Qf5 d2 Ke2 d1R Ba8 d3+ Kf3 d2 Ke4 e2 Na3 b1B+ Kd4 b2 Qd5 Be4 Nc2 b1B Ra4 Na2 Nf3 g1B+ Ne3 g2 Qe5 Bg3 Bd5 e1B Be6 Bc6 Be2 Bbf5 Rh1 B1h2 Nc4 Bfg4 Na5 g1Q+ Kd3 Bef2 Rf4 Bd4 Qe4 Ba1 Ne5 Bf3 Ng4 Bd7 Qe3 Bfc6 Qe5 Bd6 Ba3 Ne7 Bb4 Nd5 Bf3 Nc7 Qe1 Be7 Be2 Re5 Kc4 Na8 Bf3 Rb1 Bd1 Rb2 Bc2 d1B Ba4 Bdf3 Bd1 Qd8 Bg7+ Ke8 Qc3 Rd2 Bh6 Qc8 Bg5 Kf8 Qe3 Qe8 Qe1 Rf5 Rd4 Bgd6 Rf4 Bg3 Rh2 Bhg2 Rh4 Bh3 Nh2 Bh1 Ng4 Bcf3 Nc6 Bd5+ Kb5 Bdg2+ Ka6 Rc5 Na5 Bd5 Bf5 B5c6 Be6 Bc8+
R1N1BqB1/nb2B1NQ/n1r2b2/3qn2b/R1p1q1rn/1n6/1P2KBPk/3r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 d4 Kd7 e4 Kd6 d5 Ke5 d6 f5 d7 h5 Rh2 a5 Qb3 c5 Qa3 h3 Be3 f3 Nc3 f2+ Kd1 f4 Ra2 f3 Nd5 h4 Nf4 c3 Bb5 f1B Ke1 c4 Ba7 c2 Qe3 c1N Qa3 f2+ Kd2 Bg7 Qb3 a3 Bc5 a4 Bb4 Nd3 Rh1 h2 Kd1 h3 Bf8 Bf6 Nh5 Na6 Bb4 Bb7 Bd2 Rh6 Ne2 Ne7 Rg1 h1N Be1 h2 Nd4 Nc6 Bd2 Ng3 Nf4 h1R Be3 Be2+ Kd2 f1Q Qc2 Bh5 Nde6 Na7 Ra1 a2 Ng7 a3 Nd5 Nf5 Nb6 Nh4 Bf2 Kf4 Bc6 Ne5 Bd5 Rg6 Qb1 Rg4 Bg8 Rc8 Qc2 Rc7 Nc8 Rc6 Qd3 Qb1 Ke2 Qf8 Re1 Rf1 d8B Rg1 Rc1 Rh1 Be7 Rd1 Be3+ Kg3 Bf2+ Kh2 Qd7 Neg6 e5 Qf5 e6 Ne5 Qd3 Qf4 Qh7 Qe4+ Be3 Qd5 Rc3 Qe4 Rb3 Qd5 Rb4 Qe4 Ra4 Qd5 Rb1 a1Q Bf2 a2 Rc1 Qb1 Rc3 a1N Rca3 Nb3 Ra2 Nb5 Ra1 Nb8 Ra8 Na7 Ra4 Qg6 Bec5 Ra6 e7 Rc6 e8B Na6 Be7 Qge4+
2rn2r1/1b4k1/2nN1n1N/2B1q3/1P1bqqP1/bR5R/1n2pn1K/1B1Q1RrR w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 Kf2 h5 c4 a5 g4 d5 Kg2 e5 b3 a3 c5 a4 c6 e3 c7 e4 f5 e2 f6 e1N+ Kh2 h3 Kg3 h2 Bb5 h4+ Kh3 a2 Ba3 e3 Qe2 d3 Ba6 d4 Qf1 e2 Bb4 d2 Na3 d1R Nc4 a3 Bd2 d3 Qf3 Nc2 Qf4 Nd4 Qg5 Ndc6 Be3 d2 Bb7 Qd6 Ba6 Qf4 Rb1 a1Q Qf5 a2 Nb6 Bb7 c8R Ba3 b4 Nd8 Nf3 Rg1 Rcc1 d1N Bc5 Nb2 Rc3 Nbc6 Nd4 Rc8 Qd7+ Kg6 f7 Kg7 Bb5 Nf6 Bd3 Rg8 Nc4 Rg2 Qd5 Rg1 f8R Rg2 Rhd1 h1N Nd6 Rg3+ Kh2 Nf2 Rh1 h3 Bh7 Qe5 Rbf1 Qc1 Bb1 a1B Qb3 Qcf4 Qd1 Nc4 Rb3 Bc3 N4b5 Nb2 Nf7 Bd4 Nbd6 Qf3 Rfg1 Nh7 Rf1 Qff6 Nh6 Rd3+ Kg1 h2+ Kg2 Qfg5 Rf4 Nf6 Rf3 Qgf4 Rhg1 Nh1 Kh3 Nf2+ Kh4 h1Q+ Rh3 Qhe4 Rgh1 Re3 Rg3 Nfd3 Kh3 Nf2+ Kh2 Rc3 Kg1 Rf3 Rgh3 Rg3+ Kh2 Rg1+
1K1QB3/3q1pBB/4r3/rb2q3/Nnbb3P/R2b1rnP/1q1kB3/1R1nb1N1 w - - 0 1 illegal: Other
7b/N2bp1qn/rR1PP2Q/kb1B1n2/1qBB2Rn/K5r1/5r2/Nqn1B2n w - - 0 1 illegal: No possible last move
bQ2K1b1/1n2r3/6Bq/b2b4/2rkbnp1/3P1Rn1/b2P1bRB/2BNrNB1 w - - 0 1 illegal: Other
2q3BB/Pb4b1/B2Q4/1BNpb3/1K1PRbb1/1bn1bN2/k2r1Rn1/rr3n2 w - - 0 1 illegal: No proof kernel
1bKNqR2/1Qn5/4q3/r2Nrb2/3B1b2/pbBR1n1b/1P2P3/B1krbBb1 w - - 0 1 illegal: Other
nKq1BRbk/4R1rq/2Nn2n1/P2Q4/1N1n4/BNqrP3/3N2pn/nn2b3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 c4 Kf7 h4 b5 a4 g5 c5 Kg7 h5 d5 a5 d3 e3 b3 c6 d4 c7 b4 Qd2 f3 Kg3 f2 Ba3 b2 Nc3 b1Q Bg2 f1N+ Kf2 b3 Bb4 f4 Na2 b2 Be4 g3+ Kf3 g2 Nh3 g1N+ Kf2 f3 Bc5 g4 Bc6 Rh7 h6+ Kh8 Ba7 Bb4 Be8 Ne2 Bd7 Ne7 Qc1 d2 Qc5 d1Q Qh5 d3 Bc5 d2 Bb5 Be6 c8N Nh2 Nd6 Qc8 Qd5 Ng6 Nf5 Rg7 h7 Nd4 Kg3 f2 Ng5 Qe1 Be8 d1N Ne4 Na6 Nd2 Bg8 Bf8 Bc3 Ba3 Nc7 Nb4 Qc2 Rc1 b1N Rf1 Nb2 Rd1 Nc4 Rc1 Ne7 Kf4 Nd6 Ke5 g3 Rd1 g2 Rc1 Ne2+ Nd4 Ra7 Rd1 Na8 Rc1 Rd7 Rd1 Rf7 Ke6 Qd3 N4b3 Nd4+ Ke5 Rg7 Rc1 Bb2 Rc7 Bc3 Rb7 Rd8 Ra7 Nef5 Re7 Nh4 Rh1 f1N Rg1 Ng3 Rf1 Nge2 Rf8 Qg6 Qf7 Nc2+ Kd5 Qcg4 Kc6 Na1 Qd5 Qf7 Rb7 Ng6 Re7 Nc7 Kb6 Na8+ Ka7 Rd7+ Kb8 Nd4 Nc5 Qc1 Ncb3 Qb2 Nf3 Be1 Nfd2 Qc2 Qc5 Rc7 Ba4 Qfe6 Rf5 Qh4 Qd5 Rc3 Be8 Rd3 Rf8 Qc3 Qg5 Rf7 Qd5 Kg7 h8N Qh5 Qf3 Kh7 Qd5 Rg7 Nf7 Qh4 Nd8 Kh8 Ndc6 Qh7 Rf5 Qd7 Rf8 Qc8+
kb2brnB/3b4/2K1B3/Pn1Pp3/1QR1qR1R/brNqb3/1q1R2b1/bN6 w - - 0 1 illegal: No possible last move, all moves rejected
BQ4nB/R4pbk/rr2RP2/1b1K2b1/2r1P1nb/3r1Nr1/bB2Nq2/2B4n w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 g5 e5 g6 hxg6 d5 g5 Qd2 g4 Qd4 exd4 Kd2 c5 h4 g5 f4 b5 e4 b3 a4 b2 h5 c3+ Kd3 g3 a5 g4 f5 c4+ Kc2 g2 d6 d3+ Kd1 c2+ Kd2 b4 Ke3 c3 Kd4 d2 a6 d1N a7 g3 h6 b3 h7 Qf6+ Kc4 Bg7 d7+ Kf8 d8B Ba6+ Kd5 Nf2 Nh3 g1R Rh2 g2 Nf4 Bb5 Na3 b1R Nh5 b2 Ra2 Nd7 Bf4 c1B Bb6 c2 Bg5 Ne5 Nc4 Nh1 Bd4 Ng4 Nf4 Be3 Nd2 c1R Rh6 Rc4 Ra3 Bf2 Ra1 Bh4 Ne2 Qb6 Bdf6 Qf2 Nf3 Rd1+ Bd2 b1B Bb2 Ba2 Re6 Rb8 f6 Rb6 Ned4 Ra6 Bdc1 Rd2 Be2 Rd3 Bd1 Bg5 Ba4 Bh4 Bd2 Rb1 Bdc1 g1B Bb3 Bh2 a8Q+ Bb8 Qb7 Bf4 Qa7 Bfg5 Ba4 Bd7 Bc6 Be8 Ba8 Bd7 Bc3 Rbb6 B3b2 Bb5 Ng1 N8h6 Ne2 Rg8 Qb7 Bh8 Qc7 Rg7 Qb7 Ng8 Qa7 Rg6 Qb7 Bg7 h8B N8h6 Qc7 Kg8 Qd8+ Kh7 Qb8 Rh3 Nf3 Ng8 Nd2 Rb3 Nf3 Rd3+ Ned4 Raa3 Re5 B5h6 Ng1 Bb3 Bg5 Nh2 Bgc1 Rgg3 Re6 Ng4 Ne2 B6g5 Ra2 Ra5 Ra3 Ba2 Ra4 Rde3 Nf3 Rec3 Rb4 Raa3 Ra4 Re3 Ra7 Raa6 Bc6 Rea3 Ba8 Rd3+
n1nNrN2/1q1B3N/1R1b1n1Q/2r1p1P1/2n2K1n/rq2B1RN/P2qk3/2n4b w - - 0 1 illegal: No possible last move
1rn4B/1nP1r1BR/rR2K1P1/BnN1bp2/b7/3qnb1q/2Q4N/n3nBk1 w - - 0 1 illegal: No proof kernel
6QR/BnqRbPK1/1Nr3Nn/1B1b1R1n/nqp2R2/6n1/1Pbb4/2r2bk1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 f4 e5+ Kh5 a5 g4 c5 d3 h3 g5 a3 g6 h2 f5 e3 g7 e4 f6 c3 f7 e2 Qd2 e1Q Qh6 c4 Qa6 a4 Qb5 e3 Qa5 a2 Nd2 e2 Nb1 c2 Qb4 a3 Bh6 c1N Bf4 Be7 Bd6 Ke3 d4 Kf2 d5 Nd7 Be5 Qc7 d6 Ra6 Qc3 Ndf6+ Kg5 h5 Kg6 h4 d7 h3 d8R Rc6 Rd2 Nh6 g8R Bf5+ Kg7 Bc2 Rd5 Qd2 Rd3 e1B Rb8 Ne2 Qa5 Ng3 Qd5 Qb4 Rb7 Bd2 Nc3 Re8 Rb1 a1N Rd4 a2 Nf3 Nb3 Bg2 a1N Qd8 Na5 Rf4 N1b3 Na4 Nc5 Nb6 Na4 Ra7 Nb7 Nh4+ Ke2 Bf3+ Kf2 Ng6 Rh8 Ra5 Re8 Rhd1 h1B Rbc1 Rh8 Qg8 h2 Bc3 Bg2 Raf5 h1B Bd4+ Be3 Bc5 Bf1 Rd7 Kg1 Re1 Bg2 Bd1 Bd5 Re2 Nhg4 Rh2 Rh5 Bd4 Rg5 Rh8 Nh6 Na8 Rh5 Ba7 Rh1 Nb6 Bd2 Bg4 Rc5 Rh5 Bh3 Rd8 Kh2 Re5 Rc1 Bd7 Bf1 Ref5 Kg1 Bb5 Rc6 Rd7 Nfh5+
5qN1/r1kp4/1rbR1R2/3KB1b1/3PR3/RN1bb3/nQn1r2P/3Brbrq w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 Kf2 f5 e4 b5 d4 g5 a4 c5 e5 b4 a5 c2 e6 b3 e7 f3 Ke3 f2 a6 c4 a7 c3 Bd3 f1B Ra4 b2 Ra3 g3 Qd2 f4+ Ke4 f3 Ra2 f2 Ke5 g2 Be4 g4 Qd1 g3 Bh6 c1B Qe1 c2 Bc6 Be3 Bf4 c1R Be4 Bb7 Bg5 Bh6 Ra5 Bc6 Rd5 Bd3 Kd6 f1B Qc3 Nf6 Ne2 g1Q Nf4 g2 Nd2 b1R Ng6 Na6 Bf4 Bg5 Be5 Nb4 Bf3 Nc2 Nb3 Re1 Bd1 Re2 Qb2 Rh6 Kc5 Qb8 Rd6 Nd5 Bf6 Nc3 Be5 Qf2 Rg1 Qf8 Rf6 Qb7 Kd6 Rd8 a8R Na2 Ra3 Ra8 Kc5 Ra7 Rd6 Kf7 e8R Qa8 Rh1 g1R Ne7 Ra1 Ng8 Rg6 Rc8 Rf6 Rc7 Ke8 Rb7 Kd8 Rb6 Kc7 Rba6 Bh3 Rb6 Rge1 Rg1 Rb1 Rg4 Rff1 Re4 Rg1 Rb8 Bf1 Re8 Qf3 Ree6 Qaf8 Rf6 Qh1 Qc1 Ba4 Kd5 Bab5 Na1 Rb4 Qb2 Ba4 Nb3 Rb6 Nh6 Bab5 Ng8 Bc6+
5n1k/1N2Nb2/Nb1K2B1/3Q4/rn1p1NbB/P1Rn2qP/br1Rqnr1/6b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 c4 d5 e4 b5 e5 f5 c5 Kf7 a3 Kg7 h3 f3 Kg3 d3 c6 d4 e6 f2 e7 b3 c7 d2 Bb2 f4+ Kg2 g3 Kf3 g4+ Ke4 b4 Ke5 f3 Qe1 d1N Nd2 g2 Qe2 g3 Qa6 Bg4 c8N Qd6+ Ke4 Nf6+ Kd3 Nfd7 Kc4 Rg8 e8N+ Kh8 Bd3 f1Q Nc7 f2 Na7 Qe2 Qb7 f1B Nb1 Nf2 Ra2 Nc6 Bc1 b2 Nc3 b1B Bb2 b3 Na6 Nb4 Bc1 b2 Qf3 Qc7+ Qc6 Bc5 Nd5 Nf8 Bg5 Bb6 Nc8 Qce5 Nd6 Rg6 Nf3 g1B Nh4 g2 Nhf5 Qg3 Nfe7 Rg8 Rh2 Rg7 Ra1 Ba2+ Kb5 b1R Nf4 Bf7 Qd5 Rb2 Nb7 Ra7 Rc1 Rg8 Nb8 Ra4 Rc3 Qd1 Qd6 Qgf3 Qd5 Bc8 Nf5 Ng4 Bd8 Bf2 Rc4 g1N Bh4 Ne2 Ne7 Bg1 Qe4 Nc1 Re2 Nf2 Qd5 Rg2 Rc3 Bg4 Rd2 Qg3 Na6 Qdf3 Kc4 Be2 Kb5 Bd1 Be4 Ncd3 Bg6 Qe2 Kc4 Bb3+ Kb5 Na2 Kc6 Nab4+ Kd6 Ba2
1N2bq2/bNK1BBQ1/bnRb2Rn/2R4n/r1Rp2P1/2r2P2/2q2k2/3nn2r w - - 0 1 illegal: No possible last move, all moves rejected
n1b3B1/2b3n1/1N3n1R/K2qP1B1/3pB2N/B1Q1R3/rr1Prbbq/1nb2k2 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 e4 Ke7 a4 Kd6 h4 Kc5 h5 Kd4 e5 d5 h6 f5 h7 b5 a5 c5 a6 g5 a7 c2 Rh4 c4 Ke2 f3+ Ke1 f4 Bd3 c3 Rh3 b4 Bf5 f2+ Ke2 f1N Be4 g3 Ra4 g2 Bf5 g4 Bb2 c1B Ba1 g3 Ke1 f3 Qc2 f2+ Ke2 Na6 Bd7 Bd6 Qb3 Nc7 Ra3 Ne3 Ra5 f1B+ Ke1 Kd3 Nf3 g1Q Qa3 b3 Rc5 d4 Be6 b2 Rh6 g2 Nh4 Nf6 Bg8 Nf5 Kd1 Ng7 Ra5 Rb8 a8B Qh2 Rb5 g1B Rb3 Rb5 Qc5 Bg2 Na3 b1N Bb2 Rb4 Nc4 Bf2 Ba3 Rb6 Bb7 Na8 Qa5 Ra6 Nb6 Bc7 Qc5 Qd5 Qc4+ Ke4 Kc2 Kf4 Kd3 c2 Qc3 Kg3 Bc6 Be3 Bb7 Kf2 Bc6 Kf1 Bb7 Qe4+ Kc4 Bf2 Kb5 Qd5+ Kb4 Qf7 Be4 Qd5 Bf7 Rd8 h8B Ra7 Bg8 Rd6 Bb2 Ra2 Ba3 Rc6 Qh3 Rc5 Re3 Rb5+ Ka4 Ngh5 Bg7 Rbb2 Bf8 Ng7 Be7 Nfh5 Bg5 Nf6 Qg3 Rb3 Re2 Bb2 Rh5 c1R Rh6 Re1 Qc3 Bc1 Re3 Rbb2 Qd3+ Re2 Qc3 Qb7 Ka5 Qd5+
8/BBK1R2b/1Bbq3Q/q2pPBN1/2bb1rP1/2R1b2n/3qnnq1/3k2Nr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 g4 a5 b4 h5 b5 f5 b6 f3 b7 h3 c3 h2 Bg2 f2 Nf3 f1B Ba3 f4 Ne1 h4 Bc1 h3 Bd2 f3 Qe2 Kb3 c4 a3 c5 a4 c6 f2 c7 a2 Qe3 a3 Qf3 Bh6 Kd6 Ra4 e5 Nf6 Ba5 Ne4+ Kd5 Ng5 Kd6 Nc6 b8B Rf4 Qg3 Nd4 Bb4 Ne2 Bc3 d2 Qh4 d1Q+ Nd3 Kc2 Bd5 Qd2 Nc1 Kd1 Rg1 h1N Ba5 h2 Qg3 Nh3 Qe3 Ba6 c8B Bd3 Rg2 Bh7 Rg3 Qf6+ Kc7 Qd6+ Kb7 Bg2 Bb6 f1B B8a7 N1f2 Bf3 h1Q Nc3+ Kc2 Ne4 Kd1 Rb1 a1Q Ng5 a2 Rb5 Qg1 Rc5 Qac3 Rc7 a1B Kb8 Qcb4 Bb7 Bd4 Rf3 Qa5 Rg3 Nc3 Ne2 Bc6 Rf3 Qg2 Ng1 Bc4 Rg3 Rf7 Qf4 Ne2 Rc3 Rf5 Qh2 Rf4 Qh1 Qdc5 Qh2 d5 Re7 Qca3 Kc7 Rf3 Ne6 Bhe3 Ng5 Rf4 Bf5 Q3c5 Qg3 Qca3 Qh4 Q3b4 Qh6 Qbc5 Qf8 Qd6+ Kc8 Bg8 N5f3 Ng5 Qf6 Rh1 Qh6 Ngh3 Ng5 Qe6+ Kb8 Bh7 Kc7 Qd6+
1qnk1B1N/B2r2KB/1rqR1b2/Pq4b1/b6P/QB1bN1R1/pb3n2/1q3n2 w - - 0 1 illegal: No possible last move, all moves rejected
1Rb1b1R1/2B1rB1N/3q2P1/rrk1q2b/Rn1n3K/Nb1Q1P2/p2b2R1/5rn1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 h5 b4 d5 c4 Kd7 b5 Kd6 b6 a5 g5 e5 b7 h3 g6 e3 Qf3 a3 Qf4 h2 Qf5 h4 Qf6+ Kc5 Bd2 e2 Bc3 a4 Ra2 h3 Bb2 d3 Nd2 e4 Qe7+ Qd6 Bf6 d4 Bg7 Nh6 Qc7+ Nc6 b8R Ra5 Qe7 Nb4 Qh4 Nf5 Nb1 Rh5 Rb2 a2 Qg4 a1Q Rc2 a3 Nf3 a2 Rg1 h1B Qh4 h2 Be5 Bh6 Rg4 Bg2 Rb7 h1R Rb8 Rg5 Kd2 e1N Qh3 e3+ Kd1 d2 Ke2 Rh5 Ng5 Bc6 Na3 Be8 Nh7 Nf3 Bg2 Rf1 Bf4 Ng5 Bd5 Nf3 Bf7 Qb2 Rg2 Rb5 Rc1 Qc3 Re1 Ng1+ Kd1 Kc6 c5 Ra5 Rg4 Nd3 Rb5 Qf8 Bh2 Ba6 Bb3 Bd7 Bc7 Qd6 Rb8 Bg5 Rg8 Be8 Bf7 Qb2 Qg3 Qb5 Bd8 e2+ Kc2 Be3 Qh3 Bh6 Rg2 Be3 Rb1 e1R Rb4 Bg5 Ra4 Re7 Qe3 d1B+ Kd2 Nb4 Bb6 Bg4 f3 d3 Bd8 Nd4 Bb6 Be6 Bd8 Kd5 c6 Bf4 c7 Kc6 Kc3 d2 Qd3 d1B c8R+ Kd5 Bc7 Bb3 Rb8 Bc8 Nc2 Bh6 Na3 Rg5 Kd2 Kc6 Ke3 Bg4+ Be6 Bh5 Ke4 Qd7 Kf4 Re5+ Kg3 Bd2 Bg4 Qd6 Be6 Qbd5 Bf7 Q5e6 Rg7 Reb5+ Kh4 Kc5 Rg8 Qee5
q4k2/3n4/1qRqrPnR/3B4/1b2rb1b/K1PRpnRb/b1Nq1N2/2B2Q2 w - - 0 1 illegal: No possible last move, all moves rejected
3b2k1/1b3R1q/1nqRpP1r/1nb2PbR/1n3bQN/2N5/4B2B/RnK1r1r1 w - - 0 1 illegal: Other
b1Rq2QR/8/bB1p1B1P/PnbBqq2/4b2n/rr3r1N/5BNq/4K1qk w - - 0 1 illegal: No possible last move
K3nBB1/1Bb2NR1/2P2k2/Pb1n2n1/1rqrq1Bn/r2Qb3/4r1Rp/1r4N1 w - - 0 1 illegal: No proof kernel
1b1rr3/2K1nkn1/N1p1Rn2/Qb1r1r1n/P2N3q/qB2r1Rb/5P1B/BB6 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 e5 Ke3 b5 d4 h5 a4 b3 g4 b4 d5 c6 g5 b2 g6 b3 d6 h3 g7 c3 d7+ Kf7 Ba6 h4 Ra3 c2 Qf1 h2 Bd2 c1Q Qb5 h3 Qb4 Rh5 Qd6 Qh4 d8B Ne7 Ra1 Nd7 Ne2 Nf6 Bb7 Rf5 Rd1 h1N Qd3 h2 Qa6 Ng3 Nec3 h1N Ba5 Ngh5 Bc7 N1g3 Na3 b1B Nab5 b2 Nd4 Bd3 Qa7 b1R Ra3 Rb5 Qa5 Rd5 Na2 Bb5 Ba6 Qb2 Rd3 Qa3 Nb4 Be6 Rb1 Rad8 Bc3 Bd7 Ba1 Bc8 Kd2 e3+ Kc2 e4 Re1 e2 g8B+ Kg6 Rb3 e3 Kc3 Ng7 Be6 N3h5 Bh2 Bd7 Bg8 Be6 Bc8 Bd7 Na6 Be6 Bh7+ Kf7 Bd7 Rf4 Bc8 Bh3 Bb1 Rf3 Bcf5 Rf4 Bfc2 Rff5 Rg1 e1R Rg6 e2 Bd1 Nfe8 Re6 Nef6 Bdc2 Neg8 Bd1 Bc5 Bdc2 Ba7 Bd1 Qa2 Kb4 Ne7 Rg3 Qb2+ Bb3 Qc1 Qb6 Qa3+ Ka5 Rg1 Qc7 e1R Qb6 Re3 Qc5 Rge1 Qc3 Bb8 Kb6 Ba7+ Kc7 Re8 Rg2 Rd1 Rg3 Rdd3 Qa5 Rdd8 Ne2 R3d5 Nd4 Bb8+
2n1r3/2KN1qk1/1Pn2N2/1Q2qpn1/1r3qP1/NbB1br1N/1n6/Rqq2R1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 Kd3 h5 Ke4 d5+ Ke5 f5 g4 Kf7 c4 d3 e4 d2 b4 a3 b5 h3 c5 a2 c6 d4 c7 h2 b6 d3 Qc2 d1Q Nd2 a4 Be2 f3 Ba3 h4 Bd6 f2 Rc1 f1Q Qb2 a1R Qb5 a3 Nb1 d2 Qb2 a2 Bf3 h3 Qd4 Nf6 Bg2 Ra4 Nc3 Ne8 Qb4 Be6 c8N Qc7 Rc2 Bh6 Nd5 Be3 Rc5 Kg7 Qc4 Rb4 Bf3 Qf7 Na7 Rab1 Qa6 a1Q+ Rc3 Qb3 Nb5 d1N Na3 Rb2 Bg2 Rf2 Qb5 Qbb2 Nf6 Bb3 Nd7 Rf4 Nf3 Qbf2 Rg1 h1N Ng5 h2 Nh3 Ng3 Bc5 h1Q Bd4 Qh2 Rc1 Nb2 Bc3 Q1e1 Rb1 Qc1 Bh1 Qa2 Ra1 Qab1 Re1 Qf1 Rd1 Q1c4 Rf1 Rf3 Nf8 Nc7 Nd7 Ne6 Kd6+ Qd4+ Qd5 Ng5 Kc7 Nc6 Qb5 Rg8 e5 Qde4 e6+ Qe5+ Kb7 N3e4 e7 Nd6+ Kc7 Qf4 e8N+ Kh7 Ng7 Re8 Nh5 Kg6 Nf6 Kh6 Be1 Kg7 Bc3 Nc8+
4b2R/1bnnQB2/1PP5/r1q2K2/1rpn2r1/kNq1bb1R/N1RR1B2/4b2n w - - 0 1 illegal: No possible last move
N7/1bb2RP1/4rpB1/NK1n2nN/3n2r1/3Q1R1P/k1rBn1q1/qn1rN1b1 w - - 0 1 illegal: No proof kernel
4kB2/BR2Pqq1/1qb1N1bb/1R6/K2r2qQ/RN2r1p1/3nRrPb/1q3n2 w - - 0 1 illegal: No proof kernel
n1B1N3/Bqn1pb1k/4rq2/2B1Q1R1/5nb1/K2P1b1n/R2P2NB/1qrn2b1 w - - 0 1 illegal: Other
2Nn1n2/n1P5/b1BpN1k1/bRK4q/2n2rbr/2n1n1R1/n1P1Q3/1N2BNb1 w - - 0 1 illegal: Other
n3NbB1/nP1bn3/b1B5/rp3P2/QKbb1B2/2R2b2/2R1b2n/1kq2BNr w - - 0 1 illegal: No proof kernel
1NKN4/1pb5/rP1Q2B1/3B1P1R/1nr3bb/3k2qn/Rbnbb1R1/nbR5 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 f5 b5 fxe4 Ba3 c5 Bb4 cxd4 Bd3 axb4 Be2 Rh3 Bf1 Rh8 Kd2 Kf7 c4 Kg6 a4 Kf5 h4 d5 f4 e5 c5 g5 a5 b3 c6 b2 c7 e3+ Kd3 e2 b6 e1B h5 e4+ Ke2 g3 h6 g4 a6 g2 h7 e3 Kd3 e2 a7 g3 Ra5 Nh6 Nh3 g1B Nf2 g2 Qc1 Nc6 Rc5 Qd6 Ng4 Bd2 Rc3 e1B Rh4 Bh2 Ne5 g1N Nf7 Ng4 Rc2 Bg7 Nd8 Ne3 Rg4 Nh3 Qd1 Bh4 Na3 b1B Nb5 Rg8 h8R Nb4+ Ke2 Ke4 Rc1 Rf8 Rg2 Nec2 Rh5 Bd7 c8B Na1 Nc7 Qg6 Rf2 Qg3 Na6 Be5 Nb8 Bg4+ Rf3 Rf6 Bg2 Rc6 f5 Bh8 Bd7 Rc4 Be8 Be5 Bg6 d3+ Kf1 Bb2 Rf2+ Kd4 Bf3 Ke3 Rg2 d4 Bc6 Be1 Bd5 d2 Qa4 d1N Qc6 d3 Qd6 d2 Na6 Rb8 a8R Rbc8 Nb8 Kd4 Ra2 Kd3 Nbc6 Ra8 Nb8 Qe3 Qe7 Bc7 Qd6 Nhf2 Kg1 Ra6 Kh2 Qg5 Bgf7 Qg8 Be8 Ne3 Bg6 Be7 Kg3 d1B Ra4 Bd2 Ra2 Ne4+ Kf4 Bh4 Ra5 Bde2 Ra2 Nc3+ Ke5 Nec2 Rgg1 Qg7+ Ke6 Nd1 Rg2 Qg8+ Kd7 Nf2 Kc8 Nh3 Qe7 Qg7 Qc5 Qe5 Qd6 Qg3
b1b5/7R/1Nq2nNP/B1k1rKn1/6Pb/1brQ1p1r/R4qR1/1n1Rq1rB w - - 0 1 illegal: No proof kernel
1nq5/R2NB2r/2q3pr/bnNN1R1n/QP4b1/4bBkN/b2q1nP1/2K3r1 w - - 0 1 illegal: No possible last move
6k1/nBRPR2b/bp6/q2qP1B1/1bq2nrr/N1N1b1B1/Q1r5/1nq1B2K w - - 0 1 illegal: No possible last move
4b1B1/1KRN1rN1/1B6/2pn1r2/rRn1Pkq1/7n/nn1Pb1rn/1BQ1bB2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 a4 f5+ Kd4 b5 g4 b3 e4 c5+ Kc3 Ke5 a5 b2 g5 f3 g6 f4 g7 b4+ Kc2 f2 a6 f3 a7 h3 Ra6 c3 Kb3 h4 Ka4 h2 Kb5 b3 Rd6 c2 Ra6 h3 Re6+ Kf4 Rc6 Ne7 g8B Nd5 Ra6 Qg5 Rb6 Qg4 Nc3 b1B Be6 b2 Ka5 Rh7 Bg8 Na6 Nb5 Bd7 Rg6 Rf7 Bg2 f1N Rg5 f2 Nc3 Be7 Rg7 Be8 Na4 Bh4 Rh7 Nab4 Nf3 Nd3 Ka6 Bg3 Rg1 h1N Nb6 Nh2 Nd7 f1R Kb7 Be1 Nh4 Nhf2 Nf5 Ba2 Ng7 b1N Rh1 Na3 Bb2 c1N Bc3 Nc4 Ba5 Ndb2 Bb6 Rg1 Bf1 Rg2 Qc2 Bb3 Qc3 Na2 Qc1 Bd1 Rg1 Be2 Rh1 Rc8 a8B Rc6 Rg1 Rd6 Rh1 Rdf6 Rg1 Rf5 Rh1 Rg3 Rg1 Ra3 Rg3 Ra4 Rb3 Nf3 Rb4 h2 Rh6 h1R Rc6 Rh6 Rc7 Rg6 Kb8 Nde3 Bd5 Nh3 Kb7 Nh2 Be6 Na3 Bb3 Nd5 Bc2 Nac4 Bd3 Qf3 Bc2 Rg2 Bb1 Qg4
B1b2R1r/3nPbrp/q3nB1k/n5R1/1N2r2P/7R/1N3rnb/1Q1Rr1rK w - - 0 1 illegal: No possible last move, all moves rejected
1nN1nnr1/b2P1n2/1n4BP/bb3K2/2brR3/p3N2k/B2r3q/n1Q1B1RB w - - 0 1 illegal: No proof kernel
bR4B1/3r4/kq1Bn3/2nBQ1Kn/1bNP1n1R/p6r/3bBrPb/2rN1n2 w - - 0 1 illegal: No proof kernel
qnB1brR1/7R/Q3r3/n1N2p2/2rbRP2/K5n1/1NPbBb1n/3Rrnk1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Be3 d3 Bd4 exd4 Bh3 hxg6 Kf1 g5 Kg2 g4 Kg3 d2 Bf1 Qf6 Kg2 Qd8 a4 Ke7 e4 Kf6 h4 Ke5 a5 Kf4 a6 d5 e5 b5 h5 f5 f3 Ke3 h6 g5 a7 d3 f4 d4 h7 g3 e6 g4 e7 b3 e8B b2 Rh2 b4 Ra4 b3 Nh3 Nh6 Ra2 Bb4 Bh5 Bd7 Ng1 Be8 Ra6 Rf8 Nc3 b1N h8R b2 Nh3 Na3 Bg6 b1N Rf6 Nc4 Bh5 Na5 Kg1 g2 Ne4 Nc3 Qb1 d1R Rb6 d2 Nhg5 d3 Nh3 Re1 Qa1 d1N Rh1 d2 Nc5 Ne4 Qa4 Ng3 Rh7 Rf6 Rb5 Re6 Nf2 Kf3 Rbb7 Ne3 Rbe7 d1R Nfd3 Bd2 Nb2 Ra1 Qb5 Ra4 Qa6 Rc4 Bf7 Rg6 Re4 Re6 Kh2 Kf2 Be2 Nh5 Bg8 g3+ Kh3 g1B Bf7 Rc6 Be6 g2 Bc8 Rf6 Kh4 Nhg4 Kg5 Nh2 Nbd3+ Kg3 Nb2 Bf2 Rg1 Nef1 Rh1 Nbc6 Rg1 Rb8 a8R Rb6 Rh1 g1B Rb8 Kg2 Ra8 Bd7 Rb8 Rf8+ Kg6 Rg8+ Kf7 Be8+ Ke6 Rf8 Ra8 Nb8+ Ke5 Nd7+ Kd5 Re6 Rb8 Bh4 Ra8 Bd4 Rg1+ Kf2 Rg8 Nhg3 Ra7 Nb8+ Rad7 Kg2 Rd6 Kg1 Rdd7 Nb3 Rd6 Nd7 Kc6 Na5+ Kb5 Nb8+ Rdd7 Bb4 Ka4 Bbc3+ Ka3 Bd2 Rb7 Qd5 Rb3 Qa8 Rd3 Bc1 Rd1 Bd2 Nba4 Bf2 Nb2 Bf6 Rd7 Be5 Rh7 Bed4
Nq1BRnN1/bk6/b2QR1nK/b2bP1n1/2r3p1/P4Nqr/N5nb/b4B2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 e4 Kc6 h4 g5 d4 b5 d5+ Kb7 d6 c5 a3 f5 e5 g3+ Kf3 c3 d7 b3 h5 b4 h6 c4 h7 g2 Qd3 b2 Ra2 b3 Rh4 g4+ Kf2 f3 Ke3 f2 Kf4 c2 Qh3 c3 Nd2 b1N Bb2 c1B Bd3 f1Q+ Nf3 g1B Qh2 c2 Qf2 Qg2 Rh5 Nc3 Rh6 Bc5 Bc4 Ne7 Kg5 f4 Rd6 Qg3 Bf7 Ba7 Ne4 Bh2 Rd2 Ng6+ Kh6 Qc7 Ba1 b2 Rd6 b1B Bc4 Bb2 Bf1 c1B Qd4 Bd2 Re6 Bd3 Re8 Bc4 Qd6 Bd5 Re6 Bae3 Re8 Ra4 Re6 Ba7 d8N+ Ka8 Re8 Nd7 Ne6 Qb8 Nc7+ Kb7 Na8 Rc4 Re6 Ndf8 Re8 Nd1 Nc3 Nf2 Re6 Ne4 Re8 Rg8 h8N Ng5 Nf7 Be1 Na4 Bbd4 Rf2 Ba5 Bc3 Rg7 Be1 Ba1 Nc3 Rg8 Na2 Rh8+ Kg7 Rh3 Nh6 Bb4 Ng8 Ba5 Nh4 f3 Kh6 Rc2 Rd2 f2 Rd3 Rc1 Rc3 Rc2 Rc6 Rc4 Bb4 Bd7 Ra6 Bb5 Rc6 Ba6 Bc5 Bf7 Bb6 Be6 Bd8 Bd5 Be2 f1N Bd3 Qe1 Be2 Ne3 Bf1 Rg3 Nf3 Ng2 Qc5 Qf2 Rce6 Qe3 Qd6 Rh3+ Kg7 N2h4 Kh6 Qg1 Bd3 Qg3 Bf1 Ng2+
1n2r3/rbbRK1RB/7n/n1QPb1r1/1n2Pr1k/RbN2R2/7p/2BN2bq w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 e4 c5 a4 h5 g4 f5 d4 c3 d5 h3 a5 b3 a6 h4 a7 b2 Ra4 b4 Be3 c2 Ra3 c1B Rb3 h2 Rd3 c4 Nc3 b1R Qc2 b3 Bc5 h3 Nge2 f3 Na4 b2 Bg2 f2 Rg1 f1R Nac3 h1N Rd1 f4 Bf3 Nf2 Rg2 Be3 Rc1 Nh6 Bb6 Kh4 g5 Bb7 Ke6 Bg7 g6 Be5 g7 Nd3 g8R Nb4 Nb5 c3 Qa4 c2 R2g7 Bg1 Bh1 f3 Rf7 f2 Rgg7 Re8+ Re7 h2 Bf3 Qc7 Bg4 Qc5 Re1 c1B Nec3 Bcf4 Nd1 Qc1 Be3 Ra1 Bh3 b1B Nbc3 Bc2 Qc6 Bb3 Qc5 Bc7 Re2 Bfe5 Bf5 Qb1 Bc1 Rg8 Rgf7 Rg5 Bh7 Nd7 Re3 Re8 a8R Nb8 Nb2 Ra3 Bd2 Qd1 Qb5 Qf3 Rg7 Qh1 Qc5 Ra5 Bc1 Ra4 Ra5 Ra2 Nbd1 Ra3 Rb5 Ra7 Ra5 Re1 Rg3 f1N Ra4 Ne3 Ra3 Nc4 Re3 Rf1 Rg3 Rf4 Rf3 Rg8 Rd7 Na5 Ke7 Re8+
4QKBR/Nr3rrr/4b2r/1bp3Pn/1b2NR2/r6q/3nPBR1/1bkq1R2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 b5 a4 f5 g4 h5 a5 h3 a6 h4 a7 c3 d4+ Kc4 g5 c2 d5 Kb3 d6 f3 d7 f4 Ke6 f2 Kf7 h2 Bg2 f1R Qe1 h3 Na3 f3 Qf2 Rh7+ Ke6 Na6 Qb6 f2 Bb7 Nf6 Be3 Kb2 Nf3 c1R Bd2 b3 Ne1 b4 Nec2 Nc5+ Ke5 Nce4 Ke6 Nh5 Be1 Nd2 Rg1 h1B Qc5 h2 Qc4 Bc6 Ne3 h1R Ng4 Bb5 Rg2 Rg7 Qd3 Rc6+ Qd6 Rb6 Nf6 c6 Qb8 Rh2 Ra2+ Kc1 Ne4 b2 Ra1+ b1B Qe5 b3 Ba6 Rg6+ Kf7 b2 Qe8 Bb4 Bb7 c5 Bd5 Rh3 Kf8 Rg7 Bf7 Rh6 Bg8 Qc7 d8R Be6 Rd3 Qd8 Rf3 Qd3 Rf5 Qc2 Rf4 Qd1 Nc4 Ra3 Ne5 Rh1 Nc6 f1Q Bf2 Rd8 a8R Rdd7 Rgg4 Qh3 Rg2 Rf1 Na7 Rgh7 Ra2 Rdg7 Rc8 B1d3 Rd8 b1R Rb8 Rbb3 Ra1+ Bb1 Rfg4 Bbc4 Qc8 Kc2 Ke8 Ba2 Bg3 Bc3 Bf7 Qe1 Ke7 Rf3 Bf2 Rb7+ Qd7 Ba5 Rh8 Bb4 Kf8 Bb5 Qe8 Qeh1 Rag1 Rff6 Rf4 Bb1 Rh2 Kb2 Rgg2 Qd1 Rh1 Kc1 Rf1 Rfg6 Bg8 Rgd7 Qe7 Rgg7 Qe8 Rdf7+
1Brr1QN1/1B4K1/3bP3/1r1bRr2/1bn1Bpqn/4r3/1qP2N1k/RB2r1b1 w - - 0 1 illegal: No proof kernel
1b1n4/B3bb1r/PBBrnB2/pN6/rkP2q1N/n7/R6r/nbK1n1QR w - - 0 1 illegal: No proof kernel
1N2bnK1/NR1n1bNP/r7/2k5/1Rb1b2n/q1Bp2Pb/r4NQb/1n3Bq1 w - - 0 1 illegal: No possible last move, all moves rejected
1rb1R3/b1R1rK1n/B2NPR2/P3N2p/rqn2n1Q/2B1r3/1Rq3bn/k3b3 w - - 0 1 illegal: No possible last move, all moves rejected
1b2rbRQ/1NkBn1b1/nrP2Pb1/q3r2B/p2BN3/2q1B2n/3r4/1K4nR w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 e5 c4 a5 Kc2 d5 f4 Kd7 g4 h5 b4 a3 b5 d3+ Kd2 a2 g5 e3+ Kc3 a4 Kb2 h3 b6 h2 c5 h4 b7 d4 f5 e2 c6+ Kc7 g6 e1Q g7 h3 Qb3 d2 Bb5 d1R Be2 d3 Bh5 e4 Qd5 d2 Qc5 e3 Qa3 e2 Qc3 Ra6 Qf6 Rb6+ Kc2 Ne7 g8B Na6 Na3 Nb4+ Kb2 Qg3 Rb1 e1B Ka1 Qc3+ Rb2 Bg3 Bg6 Re1 Bc4 d1R Bh5 Re5 Be6 Rd2 Nf3 Bd7 Qh4 Be8 Bd7 Bg6 Nc4 Qa8 Qf6 Qa5 Nd6 Rg8 Qh8 Bf4 Rd1 h1N Ng5 h2 Nge4 Nf2 Rh1 Nh3 b8B+ Kd8 Nf6 Ng1 Ba7 Kc7 Nfe4 Bg7 Nf2 Re8 Nb7 Bf8 Ne4 Ne2 Re1 h1N Rf1 Nf2 Rh1 Ng1 f6 B4h6 Qg7 Nfh3 Qh8 Rd6 Be3 Rd2 Bd4 Bhg7 Be3 Qcc5 Rc2 Qc4 Kb2 a1B+ Kb1 Bd4 Rc1 Qc3 Rf1 Bc5 Rf4 Bd6 Rg4 Ra6 Bad4 Rb6 Nc5 Kd8 Rg5 Bb8 Nb7+ Kc7 Qh6 Bf5 Qh8 Bh6 Rg7 Bg6 Rg8 Bhg7 Bd1 Nf5 Bf3 Ne7 Bh5 Na6+
B1bN4/kP1B1rr1/B4qr1/3bPnbq/4qR2/1nQ3q1/2RKNr1p/1b2B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 h5 e4 f5 b4 d5 g4 Kd7 g5 Kc6 e5 Kb7 c5 a5 c6+ Ka7 g6 f3 g7 h3 c7 a3 b5 f2+ Kd2 f4 Qc2 h4 Nc3 d3 Nd1 d4 Qb2 h2 Qb4 a4 Qb2 h3 Be2 f1R Qc3 f3 Ne3 f2 Qc6 a2 Qf6 a3 Qh4 Rh6 Qf4 Qf6 Nd5 Nd7 Nb4 Rg6 Rb1 a1Q Qe4 a2 Bf3 Nc5 Nd5 Nh6 g8B Nf5 Nb6 Bh6+ Qe3 Bg5 Rb3 Qb1 Be2 a1Q Bf3 Qa3 Rb4 Rb8 Na8 Rb7 Ne2 Rg1 Bgd5 f1R Bde4 Rf2 Bc6 Rg4 Rd1 h1B Bd7 h2 Rf1 Rg1 Rb2 Rg7 Bfc6 Bd5 Rc2 Rg6 Bb2 Rgg2 Ba1 Qbb4+ Bc3 Nb3+ Kd1 Rg4 Be1 d2 Qc3 Qba4 Nb6 Qc4 Na4 Qd3 Nc5 Qe4 Ne6 Rg7 Rc1 Rf7 Nd8 Rb6 Qd3 Rg1 Kc2 Rg3 Ba8 d1B+ Kb1 Rgg2 Rc2 Rc6 Qc4 d3 Qc3 d2 b6+ Ka6 b7 Ka7 Be8 Re6 Bb5 Ree7 Bd3 Rg7 Ba6 Ref7 Rg1 Rg4 Rg3 Rg6 Rf3 Rgg7 Rf4 Rg3 Nd4 Bh5 Ne2 Bg6 Qb2 d1Q+ Qc1 Bce6 c8B Bh7 Bd7 Rg6 Nd4 Qh5 Ne2 Rgg2 Bc6 Bc8 Bd7 Qab4 Qa3 Qc3 Qb4 Qg3 Qc3 Na1 Kc1 Nb3+ Kd1 Rgg7 Bd3 Bh6 Qc7 Qgh3 Rd2 Qee3 Ba6 Ne7 Rb2 Bb1 Bdb5 Nf5 Rc2 Qe4 Qc3 R2g6 Be8 Qg3 Bd7 Nbd4 Kc1 Bg5 Kd2 Nb3+
1B1n4/bb1b4/r1Nnr3/2N3r1/b1R2QPR/p1q1pK2/q1P2b1R/kBR2n2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 f4 Ke6 b4 Kd5 g4 Kc4 f5 d5 f6 a5 b5 h5 f7 e5 b6 h3 b7 e3 Na3+ Kc3 Bd2+ Kb2 Kf3 d3 Qe2 e4+ Kf4 h2 Qg2 e2 Nb1 e1B Ke3 d4+ Kf4 h4 Ra3 h3 Qg3 Ne7 Qf2 Rh6 Kg3 Re6 Bf4 d2 Bg5 d1N Bb5 d3 Bf6+ Qd4 Bh4 d2 Re3 a3 Ba6 a2 Kf4 a1Q Qg2 a4 Qg3 a3 Qf3 Nf5 Qf1 Bf2 Rc3 Qa2 Bg3 Nd6 Bc4 Ka1 Ne2 Nc6 b8R Ra6 Rb5 Qg7 Rh5 Nd8 Nd4 Ne3 Nc6 d1R Nd2 Bd7 Rh4 Be7 Rg1 h1B f8R h2 Rfh8 Bg2 Bb3 h1B Rc4 Qc3 Rh2 Rb1 R8h4 Bf6 Qc1 Bd4 Qf1 Ba7 Qc1 Qab2 Ba2 Bf3 Qf1 Re1 Bb1 Qa2 Nb4 Re5 Nc6 Rg5 Nb3+ Kb2 Nbd4 Ka1 Ne6 Re2 Qc1 Nf1 Nc5 Re3 Qd2 Be2 Ra4 Bb5 Rc4 Ba4 Qd4 Nd2 Rc1 Nf1 Qe5 Rd3 Qf6 e3 Qf7 Rdd5 Qf8 Rde5 Qf6 Bd5 Qf7 Ne4 Kf3 Re6 Bb8 Nd6+ Re4 Bc4 Qf4 Bcb5 Rc4 Bc8 Nb4 Bbd7 Nc6 Bb7
b2b3K/qN1q1Rn1/2r3R1/q2P1Npq/1P6/1BB4p/nRqrkb1Q/5r1R w - - 0 1 illegal: No proof kernel
1qqBr2n/1k2bB2/R3RnqB/PnBnnb2/1p2pK1N/b5N1/6P1/6Qr w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 f4 b5 d4 h5 a4 e5 a5 b3 f5 b4 f6 c3 f7 b2 d5+ Kb7 d6 c5 d7 c4 Ra3 c2 Qe1 h3 Qh4 c3 Rh2 Nf6 Qf2 h4 Rb3 Na6 Qe2 Be7 f8B Nc7 Qc4 Ncd5+ Kf2 e3+ Kf3 e2 Qd4 e1N+ Ke2 e4 Nf3 Nd3 Be3 c1N+ Kd1 c2+ Kd2 Ne2 Qc4 c1B+ Kc2 Ne5 Ra3 Nef4 Rd3 Nfg6 Nc3 b1N Bc5 Ba3 Ne2 Nbc3 Kd2 Nb5 Ng3 Qc7 d8B Qb8 Qb3 Bf5 Bh6 Qc8 Rh1 h2 Qd1 h3 Nh4 Rh7 Rd4 Nh8 Bc4 Qb8 Rf1 h1Q Rf2 h2 Qg1 Ndc7 Rd6 Ncd5 Ba2 Qc8 Re6 Qb8 Qb1 Qc1+ Ke2 Qg5 Qg1 h1Q Rf1 Qg6 Rd1 Nb6 Rdd6 Nbd5 Ra6 Qh3 Rec6 Ndc7 Bf7 Ncd5 Re6 Qd6 Bc7 Re8 Bd8 Qb8 Bg5 Nb6 Ke3 Rh5 Bh6 Qhg4 Nf3 Rh3 Nh4 Rh1 Ne2 Qh3+ Kf4 Qc3 Ng3 Qc4 Bd4 Qcc8 Bc5 Nbd5#
rQ1R4/1q2R1b1/4PpK1/R2Bn1nr/1n1pN3/q1r1R2r/2kP2BN/1b3br1 w - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 h5 e5 h6 exf4 Rh3 c4 Bb2 c3 Na3 cxb2 Rh1 gxh6 Nb1 h5 Rh2 h4 Rh3 Qa5 Rh1 Qd8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Kd4 c4 d5 e4 b5 g4 b3 a4 f3 e5 f2 a5 b4 e6 h3 g5 h2 g6 f6 c5 Nc6 g7 Ne5 c6 Qe7 c7 Nh6 g8B Ba6 c8R Bg7 Bg2 Kd3 Rc7 f1N Rc6 d4 Rc8 Ne3 Rd8 Nhf7 Bh3 Ng5 Qc1 Nd5 Nc3 b1B Nge2 b2 Rd7 b3 Ne4 Qa3 Ng1 Nb4 Qc7 h6 Qd8 Kc2 Bh7 Bf1 Qb8 Rc8 Nf3 Rc3 Rg1 h1R a6 Rh2 a7 Rh1 Re7 Rh2 Kh4 h5 Rg3 Rh1 Nh2 Rg1 Re3 Rh1 Kg3 h4+ Kf4 Rg1 Bg2 h3 Nf3 h2 Kf5 h1R Ra2 Rh6 Nh2 Rh3 Bg6 Rh5 Be8 Rh1 Bc6 Rh3 Bd5 Rh5 Nf3 R1h3 Ra1 Ba2 Nh2 b1R Qe8 b2 Qb8 Ng4 Kg6 Rd1 Bh1 b1Q Bf3 Qbb2 Bg2 Bb1 Ra2 Qa6 Ra5 Qa3 Qd6 Qb7 Qb6 Rah8 a8R Re1 Rd8 Rd1 Rd6 Ra8 Rd8 Ne5+ Kf5 Be2 Qa7 Rg1 Qb8 Nef3 Kg6 Bb5 Ra4 Bf1 Ra5 Ne5+
B1bbR3/Bn3qb1/bK1pp1qN/2R1P1R1/QP4n1/b5q1/rkn3N1/4rR2 w - - 0 1 legal: proof: g4 c5 h4 b5 a4 bxa4 d4 cxd4 g5 f6 Rh3 fxg5 Rh2 gxh4 Rh1 h3 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 e4 a5 c4 h5 c5 h4 c6 a3 c7 h2 b3 h3 f3 d3 f4+ Kd4 f5 a4 f6 g4 f7 g3 Qe2 d2 Qg2 d1B Bg5 a2 Na3 Kc3 Kb6 e6 Qe2 g2 Bd2+ Kb2 Qa6 Be2 Qc4 Qe8 Qc6 Bea6 Bg5 Nh6 Be3 Ng4 Qb5 Nc6 Nc2 a3 Ne2 g1B Nf4 Nd8 Rc1 a1N Qa4 a2 Ng2 Nb7 Nh4 Ba3 f8R d6 b4 Qf7 Nd4 Nc2 Bc4 a1B Rf1 Bf2 Rhg1 h1Q Rd8 h2 Bd5 Qg2 Re8 h1Q Ndf5 Qhh2 Nh6 Qhg3 Bc5 Bd4 Bc6 Bg7 e5 Qe4 Ng2 Qeg6 Rh1 Rg8 Rh5 Rh8 Rg5 Rh7 Nf5 Rh1 Nh6 Rg1 Rf4 Re1 Rf1 Ka2 Be4 Bd4 Bf3 Kb2 Bd5 Bd7 c8R Be3 Rc7 Bf4 Bf2 Bc8 Rc5 Bd2 Rf5 Bg5 Bg1 Bh4 Rg5 Ra7 Bf2 Na5 Ba8 Nb7 Rf5 Bhf6 Rg5 Bd8+ Kc6 Qgf4 Rd5 Qg3 Qa5 Bd3 Qb5 Ra4 Ba7 Bc4 Qa5 Ba6 Rc5 Ka1 Rc4 Bc1 Rc5 Ra2 Qb5 Ba3 Qa4 Bdf6 Kb6 Kb2 Rf4 Be7 Rf1 Bd8+
BRN1b3/n1K1Bqk1/1P3r2/1pbqP3/2pb1NNN/1bR2Q1q/1b1r4/n3r3 w - - 0 1 illegal: No proof kernel
2Q4r/1B1rN1rP/1nb1qr1B/R1Br4/bKBp1n2/5P2/qpRq1b2/1k1N4 w - - 0 1 illegal: No proof kernel
1r1BKRq1/5bPn/1R1rkb2/3bp3/1qQr4/PR1N1B2/nNq1R1p1/2b3b1 w - - 0 1 illegal: No possible last move, all moves rejected
1rnb4/1Qb2pRR/4bB1p/N1k3r1/n1b2P2/N3PN2/2qr3b/n3NKBq w - - 0 1 legal: proof: c4 g5 d4 d5 b4 a5 h4 gxh4 e3 axb4 Bd3 e6 Be4 dxc4 d5 Bh6 d6 Bf8 Bd5 exd5 a4 Kd7 g4 Kc6 a5 b5 g5 d4 a6 d3 f3 b3 d7 h3 g6 b2 a7 d2+ Ke2 h6 g7 h2 Qf1 d1R Ra4 b4 Qh3 c3 Ra2 b3 Qg4 c2 Qg3 Na6 Ra5 Nc5 Qg4 Rd2+ Kf1 Be7 Qh4 Na4 Rd5 Rb8 Rd6+ Kc5 Nc3 b1B a8N b2 Rd3 Ba2 Nce2 b1N Nf4 Na3 Ng2 Bc4 Bb2 c1B Bf6 Nc2 Ne1 Na1 Qe4 Bb2 Qb7 Be5 Nb6 c6 Bh4 Qc7 d8B B8e6 Bf2 Bh4 Bf6 Ne7 g8N Nc8 Ne7 Rg8 f4 Bg3 Bh8 Rg5 Ngf3 Bf6 Rg1 h1Q Bg7 Bh2 Bh8 Be5 Bf6 Bd6 Ned5 Be7 Nc3 Bd8 Nb5 Qe5 Nh4 Qb2 Nhf3 Qc2 Na3 Kb4 Bh8 c5 Bb2 Ba2 Bh8 c4 Bf6 c3 Nbc4+ Kc5 Na5 Bc7 Rd8 Bab3 Rh8 Bbd5 Ng2 Bc4+ Ke1 Qb2 Rh7 c2 Qa8 c1B Qb7 Bb3 Kf1 Qc2 Nge1 Bb2 Nd4 Bd8 Ndf3 Be5 Nd4 Qhe4 Ndf3 Bec7 Rg4 Bbd5 Bg1 Bb3 Nd4 Qh1 Ndf3 Re5 Rg6 Rg5 Rgg7 Bbc4+
2q2nr1/1bP1N3/nb2NK1P/1Bp5/1RrR1r2/Bbr2k2/rN2N1p1/3Qq2q w - - 0 1 illegal: No proof kernel
K2b1b2/R1pq3k/2r2qr1/B1nnn3/3N2NP/1RP1B2p/r4N1n/1Qn2bN1 w - - 0 1 illegal: No proof kernel
K7/1Pbb1R1b/R2P4/Bp3r1r/2r2p2/1nnB1R2/nn1q1nkN/q1NQ1R2 w - - 0 1 illegal: No proof kernel
b2R4/q1r5/rBb1P3/5k2/N1BbpBnQ/n1Rb4/bBp3NP/1b3rbK w - - 0 1 illegal: No proof kernel
Rrbb4/3B2p1/rQR5/N1r4b/3rRqr1/r6r/2BPp1P1/kn2KnRN w - - 0 1 illegal: No proof kernel
3K2nk/1B2RQpn/n3B1bp/1r5B/b1n1P1P1/R1n3r1/n2Bq1Nb/n2N4 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 h4 cxd4 b5 Qxh4+ Kd2 Qh2 b6 axb6 Ke1 b5 Bb2 b4 Ba3 Ra6 Bc1 Ra8 Kf2 b5 Kf3 d5 c4 f5 e4 Kf7 a4 d3 g4 h6 a5 d4 c5 d2 c6 d3 c7 b3 a6 b4 a7 b2 Qe1 d1N Be3 d2 Ra2 b3 Bc5 Na6 Qe2 Ne3 Qf2 d1B+ Be2 Nc2 Qf1 Bd6 Bb4 Na1 Nd2 b1N Nh3 b2 Qf2 Nc3 Qg1 b1N Qb6 Ba4 Ra3 Na2 Qe3 Nbc3 Bb5 Bd7 c8B Be8 Qc5 Rb8 Bbd7 Rb5 a8B Kg6 Rc1 Kh7 Nf1 Bg6 Ne3 Qb2 Nf2 Qe2+ Kg2 f3+ Kh3 f4 Kh4 Bc7 Nfd1 f2 Qa7 f1N Ng2 f3 Be8 f2 Be6 Nh2 Bb7 f1N Qf2 Ne3 Qf7 Nc4 Rb1 Bf5 Kh5 Nf3 Ba5 Bh2 Rb2 Nd5 Bd2 Ndc3 Rb1 Ng5 Rb4 Nb6 Rd4 Nc4 Rd7 Ne7 Rc7 Rf8 Rd7 Ng8 Re7 Kh8 Bec8 Be6 Kg6 Bd5 Bcd7 Nh7 Kf5 Bc6+ Ke6 Qf1 Bdc8 Bd5+ Kd7 Qe2 Kd8 Bc6 Qf2 Rf3 Bh5 Rg3 Be6 Be8 Qf8 Bg6 Qf5 Qf2 Qf7 Qe2
RQ1qr1nR/2Bk1b1n/r3n1q1/5R2/2b3p1/q1Nr1p1n/PB3RP1/4NKb1 w - - 0 1 illegal: No proof kernel
2nq1b1r/2r2k1K/1qRR1p1Q/R1b1B2p/1B3r1P/1nn2P2/b3q3/Nn3R1N w - - 0 1 legal: proof: c4 d5 e4 dxe4 b4 g5 h4 g4 b5 a6 g3 axb5 Qb3 bxc4 Bh3 gxh3 Qd1 c3 Ke2 c5 Ke3 h5 Kf4 b5 Kg5 e3 a4 f6+ Kg6 e5 d4 e4 g4 c2 a5 h2 g5 c4 d5 e2 a6 e1Q f3 e3 d6 b4 a7 b3 Bb2 c1R Ra2 c3 Qd2 c2 Qd4 e2 Ba3 b2 Nd2 b1N Qf4 Be6 Nb3 Na6 Bb4 Nc7 Ra5 Nb5 Nh3 N5c3 Rf1 h1Q Na1 Ba2 Nf2 Qg1 Nh1 Qgb6 Qd2 Rc8 a8R Rc4 Rc8 Rf4 Rcc5 Qf2 Rc6 e1B Qe3+ Be7 Qd2 Qe2 d7+ Kf8 Qe3 Bf2 Qd2 Bfc5 Qe3 Qc8 d8B Qa8 Bc7 Qd8 Be5 Ke8 Qd3 Bed6 Kg7 Ne7 g6 Rg8+ Kh7 Nc8 g7 Kf7 Qe3 Bf8 Qd2 Rd1 Qc1 Rd7 Qe3 c1N Qd2 Rc4 Qh6 Rc7 Rd6 Nb3 Rc6 Bfe7 Rd6 Rf4 Rc6 Re8 g8R Rf8 Rgg1 Rg8 Rd1 Bed6 Rgf1 Bf8 Rdd6 Rh8+
R1qBqn2/3bK1bn/5p1r/NP1qnB2/1kp3r1/1q1B1R1Q/1rP5/N1B3b1 w - - 0 1 legal: proof: f4 g5 e4 b5 a4 bxa4 h4 gxh4 e5 d6 Qe2 dxe5 Qh5 exf4 Qd1 f3 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 h5 g4 a5 d4+ Kb4 d5 c5 d6 f2 d7 e5+ Kf5 a3 g5 h3 b3 e4 g6 h2 g7 a2 Na3 h4 Bg5 e3 Qg4+ c4 Qh3 e2 Nf3 e1Q Bc1 a4 Be2 f1Q Ke5 Rh6 Kd5 Nf6+ Ke5 Nh7 g8B f6+ Ke6 Bg7 Nd4 Qf3 Qf5 h3 Rb1 a1B Rg1 h1N Qe5 h2 Rg4 Nf2 Rf4 h1Q Bd3 Ng4 Nab5 a3 Na7 a2 Qe3 Ne5 Bf7 Bc3 Bfg6 a1R Bgf5 Ra2 Ra1 Rb2 Ra6 Qb7 Qh3 Qe3 Kd6 Qe8 d8B Nbd7 Rf3 Ndf8 Ra5 Bd2 Ra3 Bd7 Nac6+ Kc3 Ra4 Qc8 b4 Be1 b5 Bf2 Nb3 Bg1 Ra2 Ra3 Nca5 Kb4 Bde4 Qc3 Na1 Qb3 Bd3 Qa4 Be3 Rc3 Bc1 Qb3 Bf1 Re3 B1d3 Re4 Ra3 Rg4 Ra2 Qh5 Ke7 Qg6 Nb7 Qh5 Ra8 Qg2 Na5 Qd2 Bf1 Qd5 B1d3 Qe8#
BRq1Rq2/4QnR1/2p5/nN3rpb/1bkP1q2/2n3Pr/1BnK4/2NR1br1 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 h4 Ba3 h3 Bc1 axb6 Qb3 b5 Qf3 b4 Qg2 hxg2 a4 Ke7 e4 Kd6 d4 g5 h4 b5 a5 f5 a6 b3 e5+ Kd5 e6 f3 h5 c3 a7 f4 h6 c2 h7 f2+ Kd2 f3 e7 b2 e8R b4 Re6 b3 Na3 b1N+ Ke3 b2 Re4 Nh6 Reh4 Nf7 Ra2 Nc3 Be2 f1Q R1h2 b1N Rb2 f2 Rh5 Nc6 Rh1 Bg4 Nb5 Bb4 Bf3+ Kc4 Ne2 Na3 Kd2 g1R Rh6 Qh3 Rg6 f1B Rg7 Na5 Bc6 Rc8 a8Q Bh5 Qa7 Qf8 Ba8 c6 Qe7 Rb8 Rb1 Qhc8 Bb2 Rb7 Nc1 Rd7 Rh2 Rd5 Re2 Rf5 Re1 Qfd8 Rd1 Qf8 Nd3 Rg8 h8R c1Q+ Ke1 Qf4 Nc1 Qe5+ Kd2 Nc2 Rh6 Qeb8 Rd6 Rh8 Rd8 Bg4 Re8 Rh3 Ra1 Bh5 Ra4 Nb7 Ra7 Na5 Rb7 Qe5 Rb8 Qf4+
3r4/q1N1N1r1/ppnBn1q1/2b1K1k1/QP1RbR2/3Nn3/qN1P3b/2r2b1B w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 a5 d5 a6 dxc4 Qa4+ Nc6 Qd1 Nb4 Nc3 Nxa6 Nb1 Nb4 Qb3 Na2 Qc2 Bf5 Qd1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 b4 h5 g4 c3 e3 c4 Qe2 h3 Bg2 b6 Qf1 a6 Qd1 c2 Qf1 c3 Bb2 c1B Qf3 h2 Na3 h4 Nc2 h3 Qf1 f3 Qb5 f2 Qf1 Bb7+ Kf4 Rh7 e4 Qd7 Nd4 c2 Qd3 f1B Qg3 Nc3 Qf3 Na4 Qb3 Ne7 Nge2 Rd8 Nc3 Nc6 Nd1 Nc5 Qa4 Rg7 g5+ Kg6 e5 f5 Bc3 Bb2 e6 c1R e7 Qe8 Rg1 h1Q Nb3 h2 Be5 Kh5 Bd6 Qg6 e8N Be5+ Kf3 f4 Nb2 Kh4 Nc7 Ne6 Nc5 Kh5 Ncd3 Kh4 Kf2 f3 Ke3 f2 Bf3 Ba8 Rg4+ Kh5 Bd5 Qg1 Bg2 h1Q Rd4 Bh2 Rb1 Qh7 g6 Kg5 Ke4 Qg8 Bf3 Qhg2 Kd5 Qh3 Bh1 Qhh7 Ra1 Qf7 Ra3 Qhg8 Rc3 Qe7 Rcc4 Qd7 Nb5 Qa7 Nc7 Qg3 Rf4 Qf7 Rcd4 Qg8 Ne5 Qb3+ Ke4 Qa2 Ned3 Qf7 Be5 Bc5 Bd6 Rh7 g7 Qg6+ Kf3 Bb7 g8N Rg7 Ne7 Bh3 Rc4 f1N Rce4 Ne3 Rd4 Qf7 Ke4 Bf1 Ne5 Ba8 Ned3 Qg6+ Nf5 Na5+ Ke5 Be4 Ne7 Nc6+
2Rb1nN1/2br1p1n/6BP/qQ1NB3/R1b3q1/2q2qpK/Nn4P1/krr3N1 w - - 0 1 illegal: No proof kernel
2N4b/rr1BPrnb/1RPN2kB/q1K1b3/1RR1q2p/n6n/2q2R1p/1Qb5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 a5 e4 f5 g4 Kf7 b4 f3 c5 a3 g5 f4 c6 h3 b5 h2 e5 a4 b6 a2 e6+ Kg6 e7 h4 b7 f2 Bh3 f1Q+ Ne2 a3 Qe1 f3 Nc3 f2 Bd2 Ra7 Nb1 Qa5 Rg1 Nd7 b8R Bh6 Bf4 Ngf6 Bg3 Ne5+ Kc2 d3+ Kb3 d2 Bd7 d1N Bg4 d4 Rg2 d3 Nd2 Bf5 Bf4 Qh1 Rb7 f1R Rb1 a1B Rb4 a2 Nc3 Nf2 Nde4 d2 Nd5 Nh3 Nd6 Nc4 Rf2 Na3 Nb6 Nh5 Nbc8 Qe4 Rc1 Bd4 Rcc4 a1B Qb1 Ng7 Be3 Be5 Rb6 Qa6 Kb4 d1Q Kc5 Rd8 Bd2 Rdd7 Bf4 Rdb7 Be3 Qed3 Bf4 Be4 Bd7 Q1c2 Be3 Bf5 Bc1 Qe4 Bf4 Kh5 g6 Bab2 Be3 Bg5 Rb4 Bgf6 Bh6 Bc1 Rb6 Qa5+ Nb5 Ne8 g7 Bh7 g8R Bh8 Rg4 Ng7 Rgf4 Qac3 Nbd6 Kg6 R4f3 Qce1 Rfb3 Qed2 R3b4 Qde1 Re2 Rf7 Rf2 Qed2 Rb2 Qa5+ R2b5 Qa6 Rb4 Qa5+
1Q1Bn3/3bp3/RnNr1bb1/2B3q1/Nrpqk2K/N3P1R1/1Nbq2P1/r1n5 w - - 0 1 illegal: No possible last move, all moves rejected
1n1N3n/bBnNp1QR/1Br1b2q/RPrp1rP1/Kq6/3R3q/bR2r3/k7 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 a5 g5 e3+ Kd3 e2 c3 e1R Kc2 a3 Kb3 d3 b5 a4+ Kb4 d2 c4+ Kd4 f6 d5 f7 h3 c5 h4 c6 h2 c7 h3 Be2 a2 Qb3 d1B Bf3 a3 Be4 Ra6 Bg6 Nh6 Be4 Be6 c8R Rc6 Bf4 Qd6+ Ka4 Bg7 f8R Nf7 Ka5 Re2 Rfe8 Rf8 Qf3 Bb3 Nc3 Nh8 Na4 Rf5 Rb1 a1R Nb6 a2 Be3+ Kc3 Nd7 Bd4 Rb2 Rc1 Qh5 a1N Qh7 Bc5 Nf3 Nc2 Qg7+ Nd4 Nfe5 Ba7 Nf7 Ba2 Ka4 Qf4 Rd1 h1Q Nd8 h2 Rf8 Qg2 Rf7 h1Q Bf3 Qd6 Bg4 Qh6 Rc7 Rc5 Rc6 Qgh3 Ra6 Qf4 Ra5 Qe4 Rb4 Qb1 Rd3+ Kc2 Rbb3 Qb2 Bf2 Kb1 Bg1 Ka1 Rb4 Qc3 Rb2 Ndc6 Bd4 Nb4 Bf2 Rc6 Bb6 Qc5 Qg8 Rcc2 Rh7 N4a6 Qg7 Nc7 Ra3 Rf7 Nf8 Bc8 Rd3 Qc3 Be6 Rf5 Bd7 Qe1 Be6 R2c5 Bd7 Rd6 Bc6 Be6 Bb7 Rdc6 Nd7 Qb4+
bNK1n3/4pq2/1qr1rRp1/nq1BN1bb/1r2P3/P1BbR3/2Q4B/n3B2k w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bc1 fxg6 Qd2 g5 Qf4 g4 Qg3 hxg3 Kd2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 Kf5 h4 g6 f4 g2 c4 b3 a3 g3 e4+ Kg4 c5 b4 f5 d3 c6 b2 c7 d2 f6 d1N h5 b3 f7 Ne3+ Ke5 d5 h6 d4 h7 d3 Rh2 d2 Nf3 d1B Bd3 g1R Bb5 g2 Rh3 Ra6 Be2 Nf6 Rh4+ Kg3 Rh6 Bb7 c8Q Ne8 Nc3 b1B Bd2 b2 Bc4 Nc2 Na2 Ba8 Nb4 Qb6 Bd5 Nc6+ Ke6 Na5+ Kd7 Be2 Ne5 Rc1 Ra2 g1Q Rh3+ Kg2 Be1 Qgf2 Nbc6 Bh5 Nb8 Bh6 f8B Qf7 Bg7 Na1 Re3 Bg5 Qc2+ Kh1 Kc8 Qb5 Bf6 Re6 Bg7 Rg8 h8B Qb6 Qc4 Bd3 Qc2 b1Q Bh6 Bh4 Bf4 Q1b5 Bh2 Rb1 Bf6 Rb4 Rb2 Bg5 Rb3 Bf1 Rf3 Rf8 Rbe3 Bd3 Rf2 Qg8 Bg7 Rff6 Bh8 Qf7 Bg7 Rd6 Bh8 Rfe6 Rf6 Rc6+ Kd7 Qg8 Nf7 Nc7 Rff3 Bf1 Bhc3 Bc4 Ne5 Bd3 Rf6 Qf7 Kc8 Ne8+
B1r2n2/1Prr1k1n/NPRq4/Np2B2b/5b1K/1R1RRb2/1q3qp1/2Q3nb w - - 0 1 illegal: Other
6qR/pq1r1n2/bN1Q2Br/k2qnr1n/1pR2BP1/2b2BPK/1q2b2N/2B5 w - - 0 1 illegal: Other
2rbr1k1/B4p1n/n4n1P/1KB1RNpR/2B1q1B1/1P5b/2qn2N1/n3nn1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 a5 Kd2 c5 Kc3 f3 h4 a3 e4 a4 e5 f2 e6 a2 d5 g3 d6 a3 h5 g2 e7 Na6 h6 Nf6 Bf4 Bh3 Qe1 Rc8 Be2 f1N Nf3 g1N Nh2 Nf3 Be5 Ng5 Bg4 Ngh7 Bd4 g5 Nd2 Qb6 Rd1 a1N Nhf3 a2 Ne4 Qc6 Ng3 Nb3 Nf5 a1N N3h4 Nbd2 b3 Qe4 Ng2 Bg7 Qh4 Bf8 Re1 Rg8 Kb2 c3+ Ka3 c2 Ka4 c1N Kb5 c4 Ba7 c3 Re2 c2 Rh2 Qa8 Re5 Nd3 Bc5 c1Q Ba7 Kd7 e8B+ Kd8 d7 Qe4 Rh1 Qc2 Bc5 Ne1 Rh2 Be7 Qh5 Kc7 d8B+ Kb8 Bd7 Re8 Bdb6 Bd8 Be6 Kb7 Ba7 Kc7 Bc4 Kd7 Nd4+ Re6 Nf5 Ke8 Bcb6 Kf8 Bc5+ Kg8 Qh4 Nd3 Qe1 Re8 Qd1 Ng3 Qh1 Ne1 Nf4 Bf1 Rh5 Bh3 Ng2 Ngf1
1r2NR2/rbnN2qB/8/n1PBB1rK/BRb1b1p1/4brPp/Qb5k/2r5 w - - 0 1 illegal: No proof kernel
n1B5/k2nR2n/B2NP3/2qp3n/Rp2Pr1B/1Kb1q1Q1/3n1Nrn/3qBb2 w - - 0 1 illegal: Other
bb1r3q/r3R3/brP2n2/Pn2r1Q1/1K4BB/1RN2Nb1/r4p1p/kNnN4 w - - 0 1 illegal: No proof kernel
1rnQR3/1r3N1B/B1P5/pN1Kbnq1/pB3n2/1B1P1knr/4q3/nn1b2R1 w - - 0 1 illegal: No proof kernel
bkBR1r1K/1nR2P1p/1q1bn2b/1nB5/P1p1bR2/8/3Nq3/brRN2Qb w - - 0 1 illegal: No possible last move
q6r/1B1P1b1R/2b2R1p/4N2Q/2p2nnP/bb1rBn1R/N1b4R/K2kbq2 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 d4 Kd7 h4 Kc6 g4 Kd5 a4 e5 a5 b5 g5 c5 a6 f5 a7 c2 Kd2 f3 Kc3 h6 Kb2 f4 g6 e3 g7 Ke4 d5 b4 d6 e2 d7 e1B Rh2 f2 Qg4 b3 Na3 Nc6 Qg2+ f3 Nb5 Nge7 g8R Nd5 Qg7 Nf4 Qe7 Bb7 Bg2 Kd3 Qh7+ e4 Rg3 f1B Ne2 Ne5 Be3 f2 Nd6 Bc6 Qf7 Ng4 Bd4+ Kd2 Ra3 e3 Qg8 Kd1 Nc1 e2 Ka1 b2+ Ka2 b1B+ Ka1 Be7 Nd3 c1Q Ra6 Qe8 Qb3+ Bc2+ Qb1 Rb8 a8R Rb3 Ne5 Rd3 Be3 Bb3 Rd8 c4 Bd5 Bh3 Nb5 f1B Rc8 Bhg2 Rgh3 Ba3 Be4 Bd5 Rf6 Bf7 Bb7 Bc6 Ra8 Qd8 Rc8 Qa5 Re8 Qa8 Re7 Be8 Rh7 Bf7 Nc7 Bfg2 Na6 Bca4 Nb4 Bgc6 Na2 Bc2 Rd6 Bab3 Rg6 Bf2 Rd6 e1N Rf6 Nf3 Bb6 Ke2 Be3 Qf1 Qc1 Ne1 Qb2 Kd1 Qd4 Nf3 Qd5 Be8 Qf7 Be1 Qh5 Bf7
2rnb2R/r1p1N2b/b3BPn1/1q1b2B1/PrR5/5R1Q/kp1N4/bR2rK1n w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 d4 Ke6 f4 Kd5 a4 h5 g5 b5 f5 e5 g6 e3 g7 h3 Ke2 c3 Ke1 h4 Ba3 c2 Ne2 Kc4 d5 Kb3 d6 h2 d7 e4 Ng3 e2 Qc1 h3 Qd1 Nc6 Bb2 Qg5 d8R Nge7 g8R Ba6 Rd6 Ra7 Qc1 Bg7 Rdd8 Ng6 Qd2 c1R+ Kf2 e1N Rd7 e3+ Ke2 Nd8 Rd4 Rc4 Qc1 Nd3 Ne4 Nf2 Ke1 e2 Rg1 h1B Na3 h2 Nc3 Bd5 Rg3 h1B Rb1 Bf7 Rf4 Be8 Bh3 Bd5 Qe3 Nh1 Rgf3 Be5 f6 Bd4 Ne4+ Ka2 Nd2 b3 Bc1 b4 Nc2 b2 Be6 b3 Re4 Be5 Nd4 Rb4 Nc6 Qf5 Rd4 Qd3 Qh6 Qb5 Rc4 Bc3 Ne7 Bd4 Nf1 Be5 Bg5 Bd4 Rd1 b1B Nd2 Ba1 Qh3 b2 Rdc1 Nh4 Rd1 Bh7 Rb1 Ng6 Rf8 Ng3 Kf2 e1R Kg2 Rg8 Kf2 Nh1+ Kg2 Rg7 Rh8 Rg8 Re4 Bd7 Rf2 Nb7 Rf3 Rc8 Rg4 Nd8 Rc4 Re4 Kg1 Be8 Kf1 Re1+
1Nn1b1qB/1prN3R/R1BP1b1K/3rP3/R2p1Q1n/rb1k4/r4q2/R4rr1 w - - 0 1 illegal: No proof kernel
3rn1r1/pN1Q4/n3R3/b2q2P1/2Rr1N2/1PBrBb2/r2b2pb/BB2K1nk w - - 0 1 illegal: No proof kernel
1qQn1rBB/4K2N/1R6/kN1q4/1RprnRPb/3q3P/1pRq2n1/n2n3b w - - 0 1 illegal: No proof kernel
4r3/bQ2qB2/R4PB1/rb1Pnr2/Bn1Nrp1K/1R2q1b1/1r1p2N1/1k1bB3 w - - 0 1 illegal: No proof kernel
bR5R/1rn5/2nqnPqN/K1p3bb/n3RN2/2kB2rQ/P1p2R2/2b1n1B1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 f4 Kd7 g4 Kd6 d4 Kd5 Kd2 h5 g5 e5 f5 c5 g6 b5 f6 h3 g7 c3+ Kc2 h2 Kb3 e3 Qe2 e4 Nf3 h4 Qb2 h3 Qg2 e2 Qf2 e1B Qc2 e3 Qe2 Rh7 Nbd2 Bg4 Ng5 Bh4 Ne6 Ra3+ Kc2 b3+ Kd3 b4 Bb2 Na6 Re1 Nc7 Qf2 e2 Ne4 Qd6 Rg1 h1N Rg2 h2 Qg1 Bg5 Nf2 Ne7 g8R Nc6 Nd1 Bfh6 Rg6 Bh5 Qe3 Ng3 Rf2 h1B Rg8 Nf5 Qh3 Ng7 Rb8 c2 Bc3 b2 Rh8 b3 Bd2 b1N Be3 Nd2 Kc3 Ke4 d5 Nc4 Nf4 Nb2 Bd4 Nge6 Ne3 Rg7 Nf5 Na4+ Kc4 b2 Be3 b1Q Rb8 Qe7 d6 Qa1 d7 Qd6 Bd4 Rg3 d8R B1f3 Rh8 Rh7 Reb1 e1N R1b4 Rg7 Be3 Ke5 Be2 Qad4+ Kb3 Qe4 Bd3 Rf7 Rd2 Rh7 Bg1 Bg2 Rf2 Rd7 Nh4 Qg6 Nf5 Rg7 Nd5 Bc1 Nf4 Bg5 Nh6 Bgf3 Bc4 Kd4 Be2+ Ke3 Re4+ Kd2 Kc4 Na6 Kb5 Kc3 Rb6 Rb7 Bd3 Ncb8 Ka5 Nac7 Rb2 Rb6 Re3 Ba8 Rb4 Nd7 Ree4 Ne5 Rbd4 Rb2 Rb4 Rb1 Rbb8 Rb3 Ng4 Rb7 Nh6 Nc6+
n1n2kq1/4n2b/1N1PBN2/1qr1n1KN/1b2P2r/4B1pQ/1Rpn4/1q1RN1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 d4 f5 e4 g5 a4 g3+ Kf3 b3 h5 c3 h6 b2 d5 b4 h7 c4 a5 g2 a6 b3 a7 c2 Rh5 c3 Bd3 g4+ Ke2 g3 Kf3 Na6 Ra4 Ne7 Na3 b1N Nb5 b2 Qd2 Na3 Rc4 b1Q Qf2 Nc7 Rb4 Nc4 Ra4 Nb6 Be3 c1N Qe2 c2 Bc4 Nd3 Ra1 Kf7 Qf1 Ne5+ Ke2 Kg7 Nf3 g1Q Ne1 f3+ Kd2 f4 Qh3 f2 Nd6 f1Q Ne8+ Kf7 Nf6 f3 Ba2 Qbb5 Rd1 f2 Rg5 Rb8 a8N Bf5 Rh5 Nbc8 Nb6 Na8 Bc4 Bh6 d6+ Kf8 Be6 Rb7 Rg5 Rc7 Rh5 Rc5 Rg5 Rg8 h8N Bh7 Rf5 Rg4 Ng6+ Kg7 Rf3 Rh4 Nf4 Qg8 N4h5+ Kf8 Rf5 Qb1 Rg5 Qfb5 Rg7 N7g6 Rb7 Nge7 Rb8 Nd3 Ke2 f1N Kf3 Bf4 Rb7 Be5 Rb8 Bc3 Rb7 Bb4 Rb8 Nf2 Rb7 Ng4 Kf4 Nd2 Rb8 Qf7 Rb7 Ne5+ Kg5 Ndc4 Ra7 Nd2 Ra2 Qfe8 Rb2 Qf7 Qf5 Qfe8 Qg4 Qf7 Qh3 Qg8+
nR5b/K1r1B1k1/BR1pPN1R/r5rR/3q2n1/1n1bqr1P/p2n4/1r4NQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 a5 Kd3 f5 Kc4 Kf7 Kb5 g5 b4 g3 c4 f3 e4 a3 c5 a4 e5 a2 e6+ Kg7 h3 d3 c6 d2 c7 g2 Kb6 f2 b5 f4 Ne2 g1Q Ba3 f3 Nd4 g4 Qc2 d1R Bc4 f1N Qf5 g3 Bb3 g2 Nc3 f2 Qf4 Nh6 Rc1 a1N Qe4 Nd2 Nd5 f1R Qf3 Qe3 Qh5 g1R Bc4 Rf3 Be7 a3 Nf6 a2 Qd5 Nab3 Bf1 d6 Rc5 Rh7 Ne2 Rg5 Ng1 Ra5 Be2 Ba6 Ka7 Qc8 b6 Ng4 b7 Nd7 b8R Nb6 Qc6 Qe8 c8R Na8 Rb6 Qf7 Rcb8 Rb1 Rh2 Qg6 Rg2 Qge4 Qb7 Q4d4 Bd3 Rg6 Rh5 Rgg5 Rg3 Rf2 Qh1 Rf3 Bf1 Bd3+ Kb7 Bg6 Ba6 Bd3 Rg2 Kg6 Rf2 Bg7 Ka7 Bh8 Rf1 Rf7 Rh6+ Kg7 Rc1 Rf8 Rc5 Rc8 Re5 Rg6 Reh5 Rgg5 Bd8 Rc4 Be7 Rc7+
1n3Bqb/1q1qN2P/2b2b2/N3np1b/2P1R1r1/p1q2R2/B1Br2bk/B2Q1K2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 Ke7 h4 Kd6 b4 Ke5 e4 g5 h5 a5 b5 d5 b6 f5 h6 d3 h7 f3 b7 a3 Rh4 a2 Rh6 g3 Rh5 g4 Bh3 f2+ Kf1 d2 Qe1 Kf4 e5 d4 e6 g2+ Ke2 Kg3 e7 d1B+ Kd2 d3 e8B a4 Rh6 a3 Qe6 f1Q Bf7 Bd7 Rh4 Bf3 Rh5 Kh2 Nc3 g3 Be8 Bg7 Qe1 Nf6 Nge2 g1B Rh4 g2 Qd1 Rg8 Re4 Ng4 Nd5 Bf6 Bb2 Bgd4 Ne7 g1Q Bg2 Bc6 Nc1 Qd7 Nb3 Ne5 Na5 Rg4 Rc1 a1Q Rc3 Qb1 Ba1 Qb4 Bh1 Qh3 Bh5 Qgg2+ Ke1 Qb5 Be8 Qbd5 Bh5 Qg8 Be8 Qb2 Bh5 Qg3+ Kf1 d2 Rce3 Qf4 Rb3 Qe3 Bg2 Qec3 Be8 Na6 b8B Bh8 Bc7 Rd8 Bd6 Nb8 Bc5 Rf4 Bb4 Bh5+ Bf3 Rg4 Be2 Bf6 Bd3 Bh8 Bc2 Bf6 Qb1 d1B Qc1 Bf3 Qd1 Bh1 Bd6 Qb4 Rf3 Q2c3 Bb1 Qbb7 Ba2 Bh8 Bc5 Ng6 Bb4 Bdf6 Bd6+ Ne5 Bb4 Qdc7 Bc5 Rd2 Bb4 Bd5 Ba4 Bc6 Bc2 Qcd8 Nc8 Qde8 Bf8 Qed7 Ne7 Bg2+
2BB1bq1/1q1QNPrB/3NqP2/b5R1/b2q1k2/R1Bnb2r/1p5p/1K3nq1 w - - 0 1 illegal: Other
4b2b/3NrpkN/qP2q1b1/2NnNQB1/R2K1r2/4nRqP/qp1bB3/7b w - - 0 1 illegal: No possible last move, all moves rejected
3RnB2/1n1P4/p1P1N1q1/b3r1p1/1qk1B3/1qrRRQ1K/n5qR/2nn1N1b w - - 0 1 illegal: No proof kernel
3B1B1N/1Nrqq1K1/b3rp2/qP4b1/b3n2B/Qn2Rr1r/3k2Pp/R4q1B w - - 0 1 illegal: Other
1qn3b1/1b2Q3/3Pbr2/p1BP4/r3kq1B/RNrR1n2/n3p2n/KBB2Nb1 w - - 0 1 illegal: Other
1qb1r3/2qB4/2Np1n1p/q1nP2R1/4n1NR/B1krbr2/r3P1N1/N3qKQ1 w - - 0 1 illegal: No possible last move, all moves rejected
2Nn4/rN4P1/2qP1r1R/1r1Q1B2/2q1pp1B/bn6/RnkBq2K/r3qbB1 w - - 0 1 illegal: No proof kernel
r1N3Kr/R4P1P/Bp1N2n1/5bbk/2QB3b/2nBrq1R/2pB1qb1/1r5q w - - 0 1 illegal: No possible last move
2r1nK1n/3RPqpb/2n2b1P/2n1N3/6pb/R2qkr1R/BN6/1R1bBq1Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 d4 Kd5 a4 Ke4 h5 f5 h6 b5 d5 c5 a5 c3 a6 f3 Kg3 c2 d6 f2 e3 b3 a7 b2 d7 b4 Rh4 b3 Rh3 f4+ Kh2 f3 Kg3 c4 Qe1 c3 Be2 f1Q Ra2 f2 Rh5 Nf6 Kh4 Bb7 Kg5 Be7 Kg6 Ne8 Kf7 Nc6 Raa5 Bf6 Ra3 Rc8 a8R Rf8+ Kg6 Bh4 Rb5 Rf3 Bd2 c1N Rh5 c2 Bc4 Ne2 Rb8 Nf4+ Kf7 c1B Kf8 Qc7 d8R Qd3 Qd1 f1Q Be1 Ba6 Rd7 Ng6+ Kg8 Bf6 Rh3 Nh8 Kf8 Bb5 Bg8 Ba4 Be6 Bd2 Rb6 Bdc3 Bf7 Bh4 Nd2+ Ke5 e4 Kf4 e5 b1B e6 b2 Rb7 Bcf6 Nc4 Ke4 Qc1 Bd1 e7 Qf4 Rb8 Bbc2 Qa1 b1N Nb2 Ke3 Ba2 Nc3 Qb1 Na4 Rb4 Rg3 Nf3 Nc5 Ne5 Rf3 Rc4 Bb3 Rc1 Bg8 Qa1 Bh7 Rb1 Qc4 Ba5 Qg2 Rc1 Ba4 Rch1 Qf2 Qg1 Qcb3 Qh2 Qfe2 Rb1 Qf1 Qh1 Qe6 Bb4 Bd1 Be1 Qf7+
3b2N1/nqb1pn1k/3Q1R2/B1p1RR2/3KN3/2rP2B1/n1P1qrbr/2rbR3 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 axb6 Ng1 b5 Qf3 b4 Qe2 Nc6 Qd1 Nb8 Ke2 Kf7 Ke3 Kg6 a4 b5 f4 b3 h4 g3 f5+ Kh7 d3 g5 h5 b4 f6 b2 f7 g4 h6 b3 a5 Nc6 a6 Na7 Qd2 c6 Qe2 Bg7 f8B Be5 Rh3 Qd7 Rh2 Qb7 Nc3 b1B Ra3 b2 Rh1 Ba2 Qf2 b1N Qe2 Bc7 Nb5 Bd5 Nd4 Nc3 Nh3 g1B+ Nf2 g2 Bg7 g3 Be5 Na2 Ra5 Bg4 Nf5 Bh5 Qf1 Bd1 Kd4 e3 Bd2 e2 Qe1 Bh2 Ne4 g1R Bd6 g2 Qg3 e1Q Rc5 Qb6 Ba5 Bd8 Bb8 Qb7 Qd6 Rf1 Rb5 Nc8 a7 g1R Bbc7 Rb8 a8R Qe2 Rc5 Rg2 Ra6 Rff2 Re1 Rg1 Rb6 Na7 Rbb5 Bc4 Re5 Bd5 Nc3 Bg2 Ne4 Qa6 Rbd5 Rb3 Bb8 Qb7 Rc5 Nf6 Rcd5 Rc3 Rc5 Kg6 h7 Bg3 Nh6 Bf4 Qc7 Ne8 Ng8 Nd6 Qd7 Nf7 Qd6+ Kg7 Rf5 Rh1 Rce5 Rh2 Nh6 Rf8 h8R Bg3 Rg8+ Kh7 Rg6 Rg8 Rgf6 Rg6 Ng8 Rgh6 Qd5 Bf4 Ree6 Bfc7 Qd6 R6h5 Rf3 Rb5 Re5 Rb1 R3f5 Rc1 Qe6 Nh8 Rc5 Bb6 Bg3 Nf7 Qd6 Bbc7 Rce5 c5+
1B3rrb/q2p3N/3P1r2/1r1P1R1B/nNKq1nn1/1Q5R/BBbp2q1/5kn1 w - - 0 1 illegal: Other
4q1rb/1PN1p1bk/bQ1B4/3R1R1p/BN1q2rN/1K5P/1nr1nbr1/q6N w - - 0 1 legal: proof: e4 f5 g4 fxg4 d4 b5 a4 bxa4 d5 c6 Ra2 cxd5 Ra3 dxe4 Ra1 e3 b4 Kf7 f4 Kg6 c4 d5 h3 a5 b5 h5 f5+ Kh7 f6 g5 b6 e2 Kd2 e1B+ Kc2 g3 f7 g4 c5 g2 c6 d4 c7 d3+ Kb2 a3+ Kb3 a4+ Kc4 a2 Nd2 g3 Ndf3 d2 Kc3 a3 Ne5 Bf2 Kc4 Nd7 Nc6 Ba6+ Kb3 Bg7 c8N Ngf6 b7 Ne5 Bb5 Nd5 Ba4 Rg8 N8a7 Qe8 Nb4 Nc3 Nb5 Nd3 Ne2 g1R Nc7 g2 Ng3 Rc8 Qc2 d1Q Bf4 Bh8 Bd6 Ne2 Rc1 Qd2 Qb2 a1B Rc5 a2 Rf5 Qf4 Rh2 Qd4 Nh1 Rg4 Qb1 Rc1 Qb2 g1R Qb1 Rc2 f8N+ Kg7 Rg2 Nb2 Ng6 Kh7 Nh4 Ra8 Rg3 Rg2 Re3 Qf7+ Rd5 Rag8 Rf3 Qe8 Rff5 Nc4 Nc6 Bc3 Nb4 a1Q Qc1 Nb2 Qe3 Qa7 Qc5 Bcg7 Qb5 Qc5 Qb6 Qd4
1Nb2n2/P6R/1K2n1RB/1B3bRr/1r1b3P/Rn1pp3/Q1qN1qrr/4k1n1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 a4 e5 c4 b5 a5 d5 c5 g5 c6 e3 Kd3 e2 a6 e1R c7 e4+ Kd2 b3 a7 d3 Kc3 g3 Kd4 g4 Na3 g2 Qc2 b2 Qe2 b1B Nc4 d2 Ne5 d1Q+ Qd3 b4 Ra3 g3 Nef3 Kg4 f5 b3 f6 b2 f7 e3 Qd2 Nc6+ Kc3 d4+ Kc4 Bbf5 Kb5 b1N Qe2 d3 Kb6 Bc5+ Kb5 Qf6 f8R Rh5 Qa2 Nd8 Rh3 Qc2 Ne2 g1R Ned4 g2 Rf7 Re2 Nd2 Ne7 Rh7 Ne6 Bb2 Ng6 Nc6 Bd4 Nb8 Ngf8 Rg3+ Kf4 Rg5 Rf2 Nb3 Kf3 Ba1 Re2 Nd2+ Kf2 Bb2 Ke1 Rg6 Bb7 c8R Rh1 Rc5 g1N Ba1 Rg2 Kb6 Rhh2 Be2 Ba6 Bf3 Bc8 Bc6 Qf7 Bb5 Qf6 Nf1 Nd2 Bb2 Nb3 Nd2 Bh3 Ba1 Qf2 Bc3 Bh8 Bf6 Bf5 Bg5 Bd4 Bh6 Ba6 Nd7 Rd8 Nb8 Bc8 Rhg7 Rd5 Rh7 Re5 Ra4 Re4 Ra3 Bh8 Re5 Rb4 Rc5 Bg4 Rcg5 Bf5 Rd7 Bf6 Rh7 Bd4#
rn1b4/p1R2BPk/2r1B3/n1N1K3/B2rq3/1qnrp3/RBPn3N/2qb3Q w - - 0 1 illegal: Other
5nrK/3b1rB1/3nRBrP/1n1P2p1/R3q3/1NQ3b1/B2p1n1r/BNr1r2k w - - 0 1 illegal: No possible last move
1B1r3r/pn3kN1/nq1bR3/B1p1Kb1n/5P1N/2P3B1/1r1b1bBr/Q2n2R1 w - - 0 1 legal: proof: g4 d5 h4 b5 e4 dxe4 a4 bxa4 g5 f6 Nh3 fxg5 Ng1 gxh4 Bc4 h3 Bd3 Bd7 Bf1 Bc8 Ke2 e5 Ke3 h5 d4 c5 b4 g5 f4 h4 d5 a3 b5 g4 c3 a2 d6 h2 d7+ Kf7 b6 g3 b7 g2 Qd3 h3 Nf3 g1R Nh4 Na6 b8B Bd6 Qd1 Qb6 d8B Rg2 Bg5 Bf5 Bd3 Nf6 Qd2 Nh5 Bc7 Rad8 Qe1 Rb2 Rg1 h1R Na3 h2 Rb1 a1N Bf1 Nb3 Bg2 Na5 Nc4 Nb7 Bd2 Rb5 Bb8 Rb2 Ke2 e3 Kf3 e2 Ne3 Qb4 Qc1 e1B Bf6 Bf2 Be1 Qb6 Ra1 Bh3 Ke4 Bf5+ Kd5 e4 Ra2 Bh7 Nef5 e3 Qa1 e2 Ng7 Bf5 Ra3 Bd4 Bg3 e1B Ra4 Bdf2 Re4 Bd2 Re6 Rb5 Rb1 Rb2 Be7 Rd1 Bg5 h1N Rc1 Re1 Rd1 Re2 Rg1 Bd4 Bf6 Nf2 Be7 Nd1 Bg5 Rdf8 Bd8 Bf2 Bdc7 Qb4 Ba5 Qb6 Rf1 Rd8 Rg1 Bfe3 Bh3 Rh2 Bg2 Be7+ Ke5 Bf2 Qa4 Bf8 Qa1 Bd6+
Q3b2N/2qR2R1/1r3bp1/p1P1qPBK/1N6/3n2pk/nnRR2q1/rb3Br1 w - - 0 1 illegal: No possible last move, all moves rejected
1q1R4/4nBPp/rq2Qbpk/1n1R4/3qrb2/5NRn/PN1Kp1RB/r4b2 w - - 0 1 illegal: No possible last move
1Nq2n2/qqpn2r1/NP1bR3/1rB1P3/1R2B1Q1/k5KB/1rppn1b1/2bB4 w - - 0 1 illegal: No proof kernel
2B2Rnq/qpn1Q2n/3pqrNP/2BN3b/4rR2/2r1PpB1/4b2B/k3b1K1 w - - 0 1 illegal: No proof kernel
1B4BB/2Rr3b/nb3pP1/2N3pK/1np2nrb/7P/1rbN1q1R/QbkB4 w - - 0 1 illegal: No proof kernel
2n5/q1qN2Nr/3Rn1r1/4BP1q/k1Bp3R/Np1q1q2/pKb2PnN/2b2Q2 w - - 0 1 illegal: Other
b5r1/n2b1RqN/1nN1kb1P/Np6/1PnB3p/Q2r4/2R2q1p/Kb3BbN w - - 0 1 illegal: No proof kernel
2r2b1N/7R/1r1rB1pQ/Rb3p2/PR1r2PK/pq1r3n/qR1n2N1/b2kB3 w - - 0 1 illegal: No proof kernel
5R1q/qq2bBb1/2P1Q1Bp/p1rn1K2/2kB4/bp1nr3/3P1N1N/1b1Rb1B1 w - - 0 1 illegal: No proof kernel
q5q1/kBrN1bp1/b2N2QK/n1r2bB1/1p2Pb1P/qR3N2/2R1p3/1Nn1b3 w - - 0 1 illegal: Other
1Rb2Rn1/R1n3pK/B2Pp3/1Q1b4/1n1n1N1N/3Rr1p1/qBnq1Pr1/6bk w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 c5 Kg6 b5 a4 e3 d4 Ke4 h4 b3 a5 e6 a6 c3 h5 b2 d5 e2 h6 e1N h7 c2 a7 b4 Ra4 c4 Bh3 c3 Bf4 c1N Ra5 b3 Bh6 c2 Bd2 Ne2 Bc1 Bd6 Rh2 Na6 Rc5 Nd4 Be3 c1N Ne2 Kf3 Rb5 Nec2 Qd3 Nc7 Bf1 Na2 Rb8 Nab4 Qb5 Bg3 Rh4 Bh2 Nf4 g3 Bc1 Bg1 Rh5 Qd6 Rf5 Qd7 Rf8 Qd6 Na3 b1B Bb2 Ba2 Nc4 Qd8 Ne3 Qd6 Neg2 Qd7 Bc3 b2 Bd3 b1Q Bb2 Qd8 d6 Bd5 Rb6 Rb8 a8R Qa2 Ra7 Rb7 Rc6 Rb6 Rc3 Qg5+ Kf7 Rc6 Rca3 Rc3 Nh4+ Kg4 Bc4 Re3 Rd3 Qh6 Qb8 Qg5 Ba6 Qh6 Qb5 Qg5 Nfg2 Kh3 Nf4+ Kh2 Nf5 Qg4 Nh4 Qd1 Kg6 Kh1 Qa5 Qd2 Qb5 Nh6 Re8 Rf8 h8R Ng8 Kh7 Rf5 Rf8 Rfe5 Rd8 Re1 Rf8 R5e3 Nh3 Bh2 Nf4 Rg1 Rf7 Rg2 Rf8 Ne7 Rhg8 Bg1 Rh8 Bcb7 Rb8 Bc8 Rf8 Ng8
3b1B1n/2NNP3/2qrp3/2p1rRbn/2b1B1k1/RQqbn3/1pPB4/1b2B2K w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 e5 e6 d5 exd5 e6 d4 Qe2 Ke7 Qe3 Kf6 e7 Kg6 Qe6+ fxe6 Nc3 Kf6 Nb1 Kf7 a4 Kg6 f4 Kh5 Kf2 b5 Kg2 g5 h4 d5 a5 b3 a6 d3 a7 b4 f5 d2 f6 d1N f7 b2 Be2 d4 Nh3 b3 Bc4 g3 Rh2 g4 Ba6 d3 Bf4 d2 Bb5 Bh6 f8B Qd5+ Kg1 g2 Ra2 Ne3 Nc3 d1B Na4 b1B Bd7 b2 Ng5 Ba6 Nc5 Bd3 Nh3 B1e2 Nb7 Nc6 Ra6 Nd8 Nc5 Nf7 Bc6 Bg5 Nd7 Nf6 Ra3 Rd8 a8Q Bf1 Bb7 Qc6 Qa4 Bc4 Qb3 Bfd3 Bg3 Rh7 Be1 Nh8 Rh1 Rh6 Kh2 Rg6 Rf1 g1B+ Kg3 Rg7 Rf5 Bf2+ Kh2 Rg8 Nc5 Rd6 Nd7 Rg7 Bd2 Be1 Kg1 g3 Nf4+ Kg4 h5 g2 h6 Nh5 h7 Rg6 Nd5 Rg7 Bc1 Ba5 Bd2 Rf7 Re5 Rf4 Rf5 Re4 Ba8 Re5 Kh2 Nf7 h8B Bb6 Bf6 Nh8 B6g7 Qa4 Bh6 c5 Be1 Bd8 Nc7 Qb4 Be4 Qc3 Kg1 Kh3 Kf2 g1Q+ Kf3 Qg4+ Kf2 Qf3+ Kg1 Ng2 Kh1 Kg4 Ba8 Qc6 Bb7 Bf6 Bhd2 Bg5 Ba8 Qb5 Bd5 Ne3 Be4 Qc6
5q1N/1R2pn1Q/B1N1P1Pb/1b2n2p/q1p2n1k/1B3n2/2r1Br1n/3Rb1KB w - - 0 1 illegal: Other
1Kb1k1b1/bp4R1/bn3n2/1qp3B1/1NQqPr1n/N1p5/P3Nr2/3RNBb1 w - - 0 1 illegal: No possible last move
NQ3n2/Kr4n1/4R1P1/1pqRr2N/1kr2p1P/1b3bq1/pR6/bBnr2BR w - - 0 1 illegal: No proof kernel
N1n2r2/1N2b2N/1rR2p1B/4NP2/4B2R/1ppbP2K/k2q1rQb/qn1n3r w - - 0 1 legal: proof: d4 e5 h4 exd4 c4 g5 b4 gxh4 b5 a6 Nh3 axb5 Ng1 bxc4 Be3 c3 Bd2 Bg7 Bc1 Bf8 a4 Ke7 g4 Kd6 f4 Kc5 Kf2 Kb4 Kg2 b5 f5 h5 a5 d5 a6 c5 g5 c2 g6 Kb3 a7 f6 g7 c4 Nc3 d3 Rh3 d2 Ba3 b4 Bc1 d4 Re3 d3 Bb2 h3+ Kg3 h4+ Kh2 Nc6 Ra6 Nge7 g8N Ne5 Ra2 Nf3+ Kh1 h2 Kg2 h1R Re6 h3+ Kg3 h2 Re5 Ba6 Na4 c3 Re4 Rb8 a8N Nc8 Bg2 Be7 Nh3 Rf1 Rh4 h1R Bc1 Rf2 Ng5 Rb6 Nh6 Rf8 Qg1 d1N Nh7 d2 Ng4 Bd3 Ne5 Qd5 Ra1 Qd8 Rb1+ Ka2 Nc5 b3 Nb7 Qd7 Rc4 Qa4 Rc6 Qa3 Qh2 Qb2 Kh3 Qa1 Ba3 c1B e3 Bb2 Bd6 Ba3 Bb8 Bad6 Rc1 Ne1 Be4 Nc2 Rb1 Na3 Rc1 Rg1 Qg2 Nb1 Rc2+ Nb2 Bc7 d1Q Rc1 Qd2 Rf1 Re2 Rf4 Nd1 Rh4 Rf1 Ng6 Bh2 Bf4 Rff2 Ne5 Re1 Bh6 Rh1
1nbq1qBN/K6N/B1pp3b/1br3b1/k2B2p1/3Pq2B/P1n2RQ1/rR3n2 w - - 0 1 illegal: No proof kernel
k6n/1nn3bB/P2q1NrN/p1R4n/q4B2/3b1R1p/1q2rpNP/1K1b1NQ1 w - - 0 1 illegal: No possible last move
2R5/1r1qrQ1P/q1n1BN1p/k5B1/n2p1BNp/2PnB1b1/6bK/1b1Rqb2 w - - 0 1 illegal: No proof kernel
Bb1K1RQ1/4q1np/5N1P/1k2n1Bp/N2p4/1b1R1q1q/br1P1n2/1N3rnN w - - 0 1 legal: proof: f4 e5 h4 exf4 b4 a5 h5 axb4 c3 bxc3 h6 g6 Qa4 Ra6 Qa5 Ra8 Qh5 gxh5 Kf2 d5 Kf3 Kd7 e4 Kc6 a4 f5 g4 b5 g5 b4 g6 b3 g7 d4 a5 c2 e5 b2 e6 Qe7 a6 Nd7 a7 Ne5+ Ke2 f3+ Kf2 f4 Nc3 b1B Rh2 Ba2 Bg2 Rb8 a8N Rb2 Nb6 Nf6 g8N Ne8 Nba4 Ng7 Ne4 Kb5 Ne2 c5 Ngf6 c4 Rh3 c3 N2g3 Bb7 Rb1 Bbd5 Nh1 Bdb3 Ra1 Qb4 Rb1 Bd6 e7 Bb8 Ra1 Rf8 e8Q+ Nd7 Qe6 Qe7 Qg8 Ne5 Rg3 Rb1 Bb2 c1N Ba3 c2 Bd6 Ne2 Nec3+ Ka6 Rh3 Rb2 Rf1 c1N Nb1 Kb5 Bc7 Ng1 Bd8 Qc7 Ne8 Rf7 Bg5 Qe7 Nf6 Rf8 Re1 Rf7 Re3 Rf8 Rc3 Rf7 Rc8 Rf8 Re8 Rf7 Rf8 Ncd3+ Kf1 f2 Ba8 Nd7 Kg2 f1Q+ Kh2 Nf2 Rd3 Qfe2 Kg2 Ne5 Kh2 f3 Kg3 Qf1 Kf4 Qh3 Ng3 Nfg4 Nh1 f2 Ke4 Nc4+ Kd5 f1Q Ng3 Nf2 Nh1 Kb4 Kc6 Ne5+ Kb6 Qe2 Nd7 Qd1 Kb7 Rf5 Kc8 Kb5 Nf6 Nfg4 Rg3 Rf1 Re3 Qdf3 Rd3 Qa3 Kd8 Nf2 Qf7 Qb4 Qg8 Qe7+
2Nn1nn1/1N1K2p1/b1BQ4/RR2qp1r/R3q1P1/R1n4p/2qBPrk1/4b1r1 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 h4 cxd4 b5 Qxh4+ Kd2 Qh2 b6 axb6 Ke1 b5 Bb2 b4 Ba3 Ra6 Bc1 Ra8 Kf2 Ke7 Kf3 Kd6 Ke4 b5 Kf5 h5 c4 b3 a4 b2 g4 h4 a5 d3 a6 f3 a7 h3 Be3 d2 Ra6+ Nc6 Nc3 b1R Bg2 b4 Ra3 b3 Bh6 b2 Qf1 d1Q Ra1 f2 Be3 Rh5+ Bg5 f6 Qe1 f1N Ra2 Nd2 Bd5 Nb3 Nf3 Nc5 Na4 Ne6 Ne5 Rc1 Qc3 b1Q+ Qd3 Qb4 Ra1 Qc2 Nb6 Kc5 Bf3 d5 Nf7 d4 Nd8 Rb8 a8R Qe5+ Kg6 f5 Kf7 Rf1 Ke8 Be7 R8a7 Nf8 R1a3 Bb7 Qd2 d3 R7a4 Kd4 c5 Ba6 Be4 Rf4 Rb1 Rb7 Qd1 Ke3 Rb2 Rd7 Nb7 Nd8 c6 Kf2 c7 d2 c8R Rd6 Bd5 Qbe4 Rc5 Kg2 Bc6 Rf2 Rca5 Rd4 Nc8 Bb4+ Ne7 Bc3 Rbb5 Rb4 Bh6 Rb1 Bf4 Nde6 Nc8 Ra1 Qb1 d1N Qb4 Nd8+ Qe7 Bd2 Bh6 Nc3 Bf4 Nh7 Kd7 Rg1 Qd6 Be1 Bd2 Nf8+
2B1rq2/2k2P2/1p2bq1B/1br1R1b1/1p1B1bp1/1N2nNB1/1P3Qn1/1qr2RK1 w - - 0 1 illegal: No proof kernel
3q4/2N1p2B/1n1P1BK1/bNb1nr2/R1B2R1p/2Q4p/3BPqnr/rk1r3b w - - 0 1 legal: proof: g4 d5 h4 a5 c4 dxc4 b4 axb4 g5 f6 Qc2 fxg5 Qb3 gxh4 Qd1 h3 a4 Kd7 f4 Ke6 Kf2 Kd5 Kf3 Kd4 f5 c5 Kg4 h5+ Kg5 b5 a5 c3 f6 b3 d3 b4 f7 c4 a6 c2 a7 c3 Ba3 c1N Ra2 b2 Qb3 c2 Rh2 Nc6 Bg2 Nf6 Be4 Ne5 Bf5 Nfd7 Ra1 Bb7 Be4 Nb6 Kf5 g5 Bh1 g4 Ra2 Bg7 Qe6 b3 Nc3 b1Q f8B b2 Nd5 h4 Qc6 g3 Bb4 g2 Bd2 Rh5+ Bg5 Qa1 Nc7 b1R Ra6 Bh8 Bh6 Bg7 Qf3 Kc3 d4+ Kb2 d5 Ncd3 d6 c1R Ra4 Rd1 Qc6 Qa2 Nf3 g1B Nd4 Ne1 Ndb5 Bc5 Bd5 Ng2 Bc4 Rbc1 Qf3 Kb1 Qc3 Qd2 Rh1 Qe1 Rf1 Bc6 Rf3 Qf2 Rf4 Bf6 Bg7 Rh1 Bh6 Rh2 Bg7 Rd1 Bh8 Rc8 a8B Bf3 Bad5 Ra8 Bg8 Bb7 Bh7 Ra7 Ke6+ Be4 Bh6 Rf5 B8g7 Bg5 Bf6 Bc6 Rg4 Bd2 Rf4 Nd3 Kf7 Ne5+ Kg7 Ra8 Qd4 Ba5 Qc3 Ne3 Bhg5 Bh1 Bh6 Ng2 Bhg5 Nd3 Kg6 Ne5+ Kh6 Qg1 Rd4 Ng6 Bd2 Qf2 Rf4 Bab4 Ra3 Ne5 Ra2 Ra3 Kg7 Ba5 Kh6 Rb3 Ra4 Ra3 Kg7 Ra1 Kh6 Nc6 Kg6 Ne5+
8/2P1PR2/1pb1Rp2/1k1r1b1b/qB1B1K2/Q2pB2n/5NBN/bq1q1nnr w - - 0 1 illegal: No proof kernel
qQ1b4/n1pp2n1/R1N1br1R/B2q3B/q3P1Nn/p1Kb4/1P2Nbr1/3k3N w - - 0 1 illegal: No proof kernel
nB3n2/1p5p/PQr2kb1/2p1nqN1/K6b/q2BbNq1/1b2R2P/BRBr4 w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 f4 Kf7 d4 e5 a4 c5 a5 g5 d5 e3 f5 e2 a6 g3 f6 c2 Kd2 e1B+ Kd3 g4 Kc4 g2 Kb3 g3 d6 e4 d7 e3 Ra3 e2 Ra5 Bg7 Qd2 Qf8 d8B Ne7 Bc7 Bf5 Qd8 Bg6 Nd2 Nc8 Ra3 Nb6 Ra5 N8d7 Ka3 Rc8 Bf4 Rc6 Nh3 g1N Nf3 g2 Bfd2 Na8 Bb2 c1Q Bb4 Bh4 Bd2 e1Q Ka4 Qc3 Bd3 Qg3 Qb6 Qc8 Be3 Nf8 Ba1 Qf5 Bc1 Ke6 f7 Kf6 Nhg5 Rg8 Nd2 Nf3 Rg1 Ne5 Ndf3 Rh8 Re1 g1B Rb5 Be3 Re2 Nfd7 Rb1 Rd8 f8B Bh8 Bd6 Nf8 Bc7 Rd7 Bc2 Rd1 Bb8 Qa3+ Kb5 Kg7 Nd4 Nc4 Ngf3 Kf7 Ne6 Bb2 Bd3 Qc3 Ka4 Ne5 Neg5+ Kg7 Qa5 Kf6 Qb6 Qa3+
1rrnq2b/prk1pb2/4RPR1/5q2/2p1P1Rb/q3R2N/N1QKq1B1/2B4n w - - 0 1 legal: proof: g4 d5 h4 b5 c4 dxc4 a4 bxa4 g5 f6 Ra2 fxg5 Ra3 gxh4 Ra1 h3 b4 Kd7 e4 g5 d4 c5 f4 h5 b5 g4 d5 a3 f5 h4 b6 c3 b7 c2 d6 c4 f6 h2 Qd4 g3 Ra2 g2 Ra1 h3 Nd2 a2 Qb6 Nc6 b8R Bg7 Bd3 Qe8 Qd4 Nd8 Rb3 Rb8 Qd5 Nh6 Qg8 Nf5 Rab1 a1R Bb2 c1Q+ Ke2 Ng3+ Ke3 Bb7 Bf1 Bd5 Rb6 Qc2 Nb3 Bf7 Re1 Rb1 Nc1 Qa4 Rc6 Qa3+ Kd2 Rb7 Qh7 Rg8 Na2 Bh8 Ra6 Rb8 Bc1 R1b7 Qg7 Kc8 d7+ Kc7 Re3 Rc8 Ne2 g1B Re6 Bf2 Rg1 h1Q Nf4 h2 Nh3 Qf3 Bg2 h1Q Qg4 Qf5 Qd1 Qh2 Qc2 Nc6 d8R Nh1 Rdd3 Bh4 Rg3 Nd8 Rg6 Qhf4+ Re3 Qf1 Bf3 Rf8 R1g4 Rg8 Bg2 Rf8 Bb2 Qe2+ Kc1 Rcb8 Qd3 Qd7 Qc2 Nc6 Ng1 Rfc8 Nh3 Qa6 Ba3 Qe8 Bb2 Nd8 Ba3 Qef1+ Kd2 Q1f3 Bb2 Qa3 Bc1 Qe2+
N1Nr3q/3b3k/1bpb4/1n1pR1nb/pP4B1/b1R1r3/KB4Pb/2B1QB1n w - - 0 1 illegal: No proof kernel
kb1N2b1/1N1P3B/b1r5/rR1KB2Q/2rpr3/r2P1n2/nqp2rpR/1RR5 w - - 0 1 illegal: Other
2r1rR2/7n/2B1P2r/K1p1R2R/b1b2R1p/kN1b2p1/r1Pn1q1Q/1BN2rb1 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 gxh4 d4 axb4 g5 e5 g6 exd4 Bh6 f6 Bg5 fxg5 Kd2 Ke7 a4 Kd6 e4 Kc5 f4 h5 f5 b5 e5 d5 f6 g4 f7 d3 a5 b3 Kc3 h3 a6 d2 a7 g3 e6 b2 g7 h2 Qg4 d1B Qg5 b4+ Kb3 Na6 Ka4 b3 Na3 b1R Be2 b2 Qc1 d4 Bb5 d3 Qf4 d2 Bc4 Be2 Qe4 d1B Qb7 Qd2 Bb3 Nf6 g8R Bc4 Nb5 Qf2 Rg7 Nh7 Rg4 Bd7 Nh3 Re8 a8B Bde2 Re1 h1R Qg2 Bed3 Re3 Rbf1 Ng1 b1R Ne2 Rb2 Qh2 c6 Ra3 Ra2 Rf4 Bg7 f8R Bd4 Ka5 Rc8 R8f7 Rhe8 Re5+ Bd5 Rg5 Qf3 Nc1 Ra1 Qd2 Bg1 Nd4 Rh2 Qg2 Qf2 Ba2 Rh4 Bb1 Ra2 Rgf5 Kc4 R7f6 Nc5 Ndb3+ Ne4 Qh2 Kc3 Rg5 Kb2 Kb4 B5c4 Rf8 Nd2 Raa5 Rh3 Rae5 Rh4 Bb7 Rh3 Ba6 Rh4 Bb5 Rh3 Ba4 c5+ Ka5 Ka3 Bc6 Rh4 Be4 Ba4 Rgf5 Rg4 Ba8 h4 Bc6 Rg6 Rh5 Rh6
1N4bn/6RK/p1bbPrn1/2b2BqN/Q6p/2p2k2/N1PrRb1B/1b3Nq1 w - - 0 1 legal: proof: g4 e5 h4 b5 d4 exd4 a4 bxa4 g5 f6 Bd2 fxg5 Be3 gxh4 Bc1 h3 Kd2 Ke7 Kd3 Kd6 Ke4 h5 Kf5 Kd5 Kg6 Ke4 b4 d5 f4 c5 e3 h4 f5 c4 f6 d3 f7 h2 b5 d2 b6 a3 b7 a6 Bb2 d4 Ra2 d3 Be2 Nd7 b8N Bc5 f8N Qg5+ Kf7 Ne7 Ng6 Rd8 Qc1 d1Q Bf6 d2 Nf4 Ng6 Bd4 Ndf8 Kg8 Nh8 Bb2 Nfg6+ Kh7 Be6 Ra1 a2 Ngh3 Qdg1 Bf6 d1B Bg4 Rd2 Bf5+ Kf3 e4 c3 Nc6 Rf8 Be5 Rf6 Nb8 Be2 Nd5 Bf7 Nhf4 Bc4 Nb4 Bce6 Na3 Bb3 Rb1 a1B Nc4 Bb2 Ne3 Ba3 Nf1 Ba2 Nh5 Bd6 Ra1 Bb1 Na2 Bac5 Qb2 Q1g4 Rg1 h1B Rg2 Qg3 Rh2 Qg1 Qb5 Ne7 Bh3 g6 Nf4 Qh5+ Kg7 Qf2 Nb4 g5 Ra4 g4 Na2 g3 Bf5 g2 Rb4 g1B Qa4 Qg4+ Kh7 Bg2 Nh5 Ke2 Bf4 Qgg3 e5 Bc6 e6 Kf3 Re4 Qfg2 Re2 Bgf2 Be5 Qg1 Rg2 Qf4 Rg8 Qfg5 Bh2 Neg6 Rg7 Bg8+
Nr6/2R4r/p1BP1kr1/pR1Q1nrB/q3r1q1/4bP2/NKB1rnbp/B7 w - - 0 1 illegal: No proof kernel
q3k2n/2PN3K/1bP2b1b/R2nr1pr/6p1/bp4r1/NRrBbN2/1B2Q2N w - - 0 1 illegal: Other
4nNK1/Nrp1b1p1/1kb1B2P/b4NQ1/R3R2n/1b4b1/rp2N1Pn/1Bn3q1 w - - 0 1 illegal: No proof kernel
N5KN/5R1r/3kr1n1/bp1PqBr1/Q1p1q3/R1N4p/qNb1qBP1/r2n4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 h5 Ke4 b5 Ke5 c5 a4 f5 e4 h3 d4 h4 a5 c3 d5 b3 a6 f3 a7 h2 Ra4 b2 Rb4 h3 Na3 b1Q Rd4 f4 Be2 c2 Qd2 c4 Qd3 f2 Kf5 f1Q Kg6 f3 Kf7 f2 e5 Qg5 e6+ Kd6 e7 Nd7 Bd1 Nc5 Rf4 Bf5 Qe2 Nd3 Nf3 Qa2 Be3 c1Q Ne5 Re8 a8N Qcc2 Nb1 Nb2 Nc3 Qe4 Qc2 Qe2 Qa4 f1R Bc2 Nd1 Bf2 Rh6 Rg1 h1R Nd3 Bg7 Bb1 Rh7 Nb2 Qg3 Rf3 Qge5 Bc2 Re1 Rf1 Rc8 Rd3 Rc7 Rg3 Rh5 Re3 Bh6 Rf3 Bd2 Kf8 Rg5 e8N+ Kd7 Bd3 Ne7 Nd6 Ng6+ Kg8 Ke7 Nf7 Kd7 Nb1 Ba5 Nh8 Kd6 Bc2 Rh7 Ra3 Qh4 Nc3 Bd3 Bg3 Qhe4 Rf7 Rhf1 Bb1 Bc2 Bh4 Rf6 Bf2 Re6 Re7 Bb3 Bd3 Bc2 Rf7 Q4d4 Bf5 Qde4 Re7 Ne3 Rc7 Ra1 Rf7 Nd1
6rr/RnQb1k1q/B2pp2b/1R2r1b1/3P1PNN/3K2Np/2rB3q/1N3nb1 w - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 c4 gxh4 b5 a6 Qc2 axb5 Qb3 bxc4 Qd1 c3 Ke2 b5 d4 h5 g4 c5 a4 h3 g5 c4 g6 h2 g7 h4 f3 d6 a5 e3 a6 c2 a7 c3 Kd3 b4 Ra2 h3 Ra5 e2 Rh5 e1B Bd2 c1B Bh6 b3 Ne2 e6 Be3 b2 Rh6 c2 Ke4 Nd7 Bd2 Qc7 Ke3 Ngf6 g8N Nc5 Rg6 Nfe4 Nh6 Qh7 Ng4 Kf7 Ng3 Nb7 Ba6 Bf2+ Kd3 Bg1 Rg5 Bh6 Rb5 Bd7 Qe2 Rae8 a8N Reg8 Nc7 Bg5 Ne8 Bh6 Nc3 b1R Ng7 Ra1 Qd1 Ra5 Nb1 Bg5 N7f5 Bh6 Rb4 Re5 Rb5 Bg5 Nh4 Bh6 Bc3 Bcg5 f4 c1R Bd2 Rc2 Qc1 Rf5 Bb4 Nd2 Bc3 Nf1 Bd2 Be3 Rg1 h1Q Rg2 Bg1 Re2 Ra2 Qc7 Rc2 Ree5 Nd8 Rb7 Qh2 Ra7 Nb7 Rb5 Re5+
QRn1RBq1/1B1q1pRR/1bN5/1b1ppb1P/1K2bqr1/NP5n/rk6/q7 w - - 0 1 illegal: No proof kernel
1qk2B1N/n1p4p/p2n1R2/P2b3B/K1bQq1b1/N1N4q/Pb2r1q1/3R2rN w - - 0 1 illegal: Other
N4q1q/qPbbB3/1Np5/rB4n1/PnKR1b1N/kb1Rp1p1/6Q1/1r2Nq2 w - - 0 1 illegal: No possible last move, all moves rejected
1BQ5/BpKB4/n1R2qqr/1R2p1Nk/4Pnnb/3N1p2/P1rq3B/1n4qb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 c5 g5 c6 gxf4 Nh3 dxc6 Ng1 c5 Qc2 c4 Qa4+ Nc6 Qd1 Nb8 Kf2 e5 h4 f5 d4 Kf7 e4 Kg6 d5 c5 d6 c3 d7 c4 Qd6+ Kh5 Nf3 g3+ Ke2 c2 Ng5 g2 Nd2 g1Q Qc6 c3 Kd3 f3 Kc4 f4 Kd5 b3 Rb1 f2 Bb5 f1Q Nc4 b2 Be3 c1Q Ba7 Qdb6 d8B c2 Bc7 Na6 Bcb8 Bg4 Qc8 Rh6 Bd7 Qg6 Rh3 Bg7 Rc3 Nf6+ Kd6 Qce3 Na3 c1N Rc6 Ne2 Nc2 Qff2 Nb4 Qd2+ Nd3 Bh3 Be3 Bg2 Bea7 Nc5 Kc7 Bh1 Rc1 b1N Rb6 Rh8 Rb5 Ng4 Rc4 Bf6 Rc2 Kh6 h5 f3 Rc3 Nf4 Rc4 Be7 Rc3 Qh4 Rc1 Kg7 h6+ Kf6 h7 Kg7 Be6 Kh6 Bd7 Kh5 Rc2 Rf8 h8B Rf6 Bg7 Rd6 Nh7 Qhf6 Bh6 Re6 Ng5 Rd6 Bb6 Ra3 Rc4 Rc3 B6a7 Rc2 Nf7 Ne2 Bf4 Re6 Bh2 Nf4 Ng5 Ra6 Qd8 Rd6 Kc8 Na6 Rc6 Re6 Qg8 Bc5 Qe8 Bf2 Qg8 Bh4 Qd8 Nb4 Kc7 Rd6 Qf8 Re6 Qc5 Na6+ Kb6 Qf8 Rd6 Rf6 Re6 Qgg8 Rd6 Rh6 Re6 Qgc1 Qc8 Qg6 Rd6 Qff6 Rc6 Nc5 Kc7 Qf1 Rb2 Qg1 Rb5 Na6+
1n1n2Kq/PbB1rQ2/rBpq3N/2P1B3/4rR1p/5R1N/p1B4b/2rbk2b w - - 0 1 illegal: No proof kernel
b2B2Bn/2RQ2b1/2n4B/pbrr4/2P2p2/r1qpP1NR/2kn1p2/BNq2K2 w - - 0 1 illegal: No possible last move
2qR2b1/2r2p2/R2P3B/b1n2PQ1/1pb1q2p/pr3BR1/1nR1Nr2/1k3nNK w - - 0 1 legal: proof: e4 b5 b4 c5 h4 cxb4 a4 bxa4 e5 g5 e6 gxh4 Nc3 dxe6 Nb1 e5 Bb2 e4 Ba3 Nh6 Bc1 Ng8 d4 Kd7 c4 Kd6 f4 h5 Kf2 a5 g4 e5 Kg2 h3+ Kh2 h4 c5+ Kd5 g5 a3 c6 a2 c7 a4 g6 e3 g7 Ke4 d5 e2 d6 e1Q Be3 Ba6 c8R Be7 Be2 Nd7 Rc2 Ngf6 g8R Nh5 Rf8 Nc5 Na3 Bc4 Rcc1 Qc8 Rc2 Bd8 Rd2 Ba5 Re8 Ng3 Rc1 a1R Nb5 Ra2 Nf3 Nf1+ Kg1 h2+ Kg2 a3 Rd3 Ra7 Qd2 Rc7 Re6 Re8 Rg1 h1B+ Kh3 Rb2 Rg3 Rb3 Nbd4 Rg8 Ng1 Rg5 Qc3 Rf5 Re8 Bf3 Bd2 Bh5 Kg2 Bg6 Rc2 Bh7 Rdf3 Bg8 Rd8 Rf6 Bd1 Qe3 Qb2 Kd3 Qc1 e4 Kh1 Rf5 Rf2 Qf3+ Rfg2 e3 Nde2 Qe4 Rg5 Na4 Rg3 Nb2 Rg5 Rf6 Rb5 Rf5 Rb6 Rf6 Ra6 Rf5 Ng3 e2 Be3 e1N N3e2 Nf3 Rg5 Nd4+ Rg2 Ne6 Bd2 Rd5 f5 Nc5 Bh6 Re5 Qf4 Re6 Qg5 Rg6 Qf4 Rg3 Qg5 Rf3 Nc3 Rf2 Bf3 Qg4 Nce2 Qe4 Rc1 Nd2 Rg3 Nf1 Rd1+ Kc2 Rd2+ Kb1 Rc2 Qce6 Raa8 Qd7 Ra6 Qc8
b2r2n1/1k1q1ppR/nb1bP3/1q2q1P1/5pBK/1QNN1r2/rB2pBR1/7B w - - 0 1 illegal: No proof kernel
6BN/r1rKp2n/4QR1b/n2pp3/n1P4p/4qRPB/1qkBb1B1/r4qN1 w - - 0 1 illegal: Other
2n3b1/2bqprNB/1p5P/1r1p4/2bNrnN1/2K1P2B/kn1R3p/2qR1N1Q w - - 0 1 illegal: No proof kernel
bNbQ4/q1N1p1r1/p5P1/k2B1n1K/r1p2B1B/4Bqr1/RP3p1b/1R3q1n w - - 0 1 illegal: No proof kernel
K3Brk1/1p1p1N2/1n1bpn2/1qBN4/2P1pn1P/1B1bR1r1/4rq2/1R1Q1B1b w - - 0 1 illegal: Other
qbb5/p1p5/BNrk1pr1/4n3/qb4BP/4B2n/2Ppr1Q1/NKnBRR2 w - - 0 1 illegal: Other
nn2k3/4Bn2/4R1nN/p3R1pn/rQP2p2/rBNpP2R/b2K1q2/brR5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 b4 f5 h4 g5 h5 d5 h6 a3 b5 f3 e3 g3 b6 a2 b7 f4 c3 g2 h7 d3 Bd2 d4 Rh2 Bg7 Ne2 g1N Rh5 Be6 Rh2 Ne7 Rh6 Ng6 Qb3 f2+ Kd1 Nf3 Kc1 Nfe5 Rh4 Nf7 Bh3 f1N Rh6 Ng3 Qb4 Nh5 Ng3 a6 Be1 d2+ Kd1 Qd5 Nf5 Qg2 Bg4 Rg8 h8R Qf2 Be2 Be5 Bc4 Ra7 Kc2 d1N+ Kc1 d3 Bb3 Nb2 R8h7 Qg3 Kd2 Na4 Rh8 Nb6 R8h7 Bd7 c4 Na8 Nc3 Ba4 Rc1 a1R Rh8 Ra3 R8h7 Nf8 Rb6 Ng6 Nh6 Qf3 Bc2 Bb3 Re6+ Ne7 Rh8 Ba2 Bb3 Bd4 Rh7 Rg6 Re5 Rb6 Rh8+ Kd7 Re8 Ng6 R8e6 Ra4 Nd5 Ba1 Nc3 Nc6 b8R Qf2+ Kd1 Ra3 Rh8 Nb8 Ng4 Ng7 Rh3 Nh5 Nh6 Ra4 Ne2 Rb5 Bc3 Rb6 Kd2 Rb5 Bd4 Rbb7 Bc5 Rb5 Be7 Ke8 Qc5 Rbb4 Qa5 Ra3 Qc5 a5 Qb6 Rba4 Qb4 Rb7 Qc5 Nc6 Bd1 Qg3 Nc3 Rb1 Bb3 Nb8 Qb4 Qf2+
2Bnn3/2qpnbN1/3k2r1/b3n1p1/KPBP1b2/1RN2pRp/RQ2r2R/3n4 w - - 0 1 illegal: No proof kernel
NnN5/bbp2KP1/7r/b2QpN2/pP1Bn1r1/3nR1q1/2p1Rb2/3kNBb1 w - - 0 1 illegal: No proof kernel
N1N4b/NB1b1Rnn/1r3q2/n2nK1p1/2P2r1p/BN2Qp1P/r1k1pb2/3R4 w - - 0 1 illegal: No proof kernel
4BKQq/N2bbRnR/1n2rNr1/B1pp2k1/P2n1p2/1p1n2P1/6N1/1b1r2N1 w - - 0 1 illegal: No proof kernel
7N/RRPq1r2/1n1R1bp1/n1k1b2r/2N1pQp1/4Pnnb/2K1BpR1/2B2r2 w - - 0 1 legal: proof: f4 c5 a4 h5 g4 hxg4 d4 b5 f5 bxa4 f6 Qb6 Kd2 cxd4 Nc3 Qxf6 Nb1 Qf2 b4 d5 c4 Kd7 c5 Kc6 h3 e5 h4 f5 h5 a5 h6 f4 h7 a3 Kd3 a2 e3 f3 Ba3 g6 Qd2 e4+ Kc2 a4 Bg2 d3+ Kb2 d4 Rh5 Ra7 Qc2 d2 Bh3 d1N+ Kc1 d3 Bg2 Nc3 Rh6 d2+ Kb2 d1R Rh1 Nd7 Rh6 Qd2 Rh2 f2 Nh3 Ne2 Bf1 Ne5 Ng5 Nf3 Nf7 Bd6 b5+ Kd5 b6 Ng3 c6 Ba6 b7 Ne7 b8R Nc8 Bb5 Nb6 Bf1 Qd3 Nd2 Be7 Qc1 Bf6+ Qc3 Rd7 c7 Re1 Rd1 a1N Rb7 Nb3 Qe5+ Kc6 Ra1 Re7 Rd1 Qd7 Kc2 Bb5 Bb2 a3 Qf4 a2 Ba3 Be2 Nc4 a1B Rd5 Bae5 Rd6+ Kb5 Bb2 Rhe8 h8R Kc5 Bc1 Na5 Ra7 Rg8 Rb7 Rg7 Rg8 Rh7 Nh8 Ref7 Ra8 Rh5 Raa7 Rd1 Bh3 Bf1 Bg2 Nd2 Bf3 Bh3 Be2 Rf1 Rg2 Nf3
6r1/Q1p1n1p1/1BbN1nrr/BR6/B2bn1BP/1q3PRp/1bp1K1r1/2k3N1 w - - 0 1 illegal: No proof kernel
1b2N1q1/2n1q1N1/3P1qb1/N2n2PN/1Q2qp2/1B1pr1p1/2r2pRR/1q1kB1K1 w - - 0 1 illegal: No possible last move, all moves rejected
1n1Rb3/1b1q2r1/3qB1rR/b5NN/pRp1b1PR/k5P1/2p1KBQp/1n3n2 w - - 0 1 illegal: Other
4B2B/bb5B/2qqk3/3brrPP/npNqbR1p/6Nn/3p2pK/1QR4B w - - 0 1 illegal: No proof kernel
K2R4/r2R3R/3nnp1P/1p1qb3/PppbrB1k/N1Q2n2/R7/q2bbBN1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kf6 h4 c5 a4 b5 d4 g5 h5 g3+ Kf3 g2 d5 g4+ Kf2 Kg5 h6 f6 e5 c3 e6 c4 e7 g3+ Kf3 c2 Ke4 Na6 e8R Ra7 d6 Ne7 d7 Nc7 Qe2 Ne6 Na3 Rb7 Qf3 Nf5 Kd5 Nd6 Bb2 c1B Kc6 Bd2 Rc1 Be1 Qd1 f3 Bd3 f2 Rh2 f1Q Ne2 g1N Qb3 g2 Re7 Nf3 Rd1 g1B Be5 Bd4 Ng1 Rg8 Ra2 Kh4 Qc3 Rg4 Rg7 Re4 Rh7 Be7 Bh2 Qg8 Rdd2 Bd8 Bf4 Bc7 d8R Bd7+ Kd5 Be8 Rdd7 Bh5 Kc6 Qg5 Rd1 Qe5 Rd8 Qg2 Bf1 Qb2 Rd3 Qa1 Rdd2 Qd5+ Kd7 Nf5+ Kc8 Bce5 Rd3 Rc7+ Kb8 Rb7+ Ka8 Nd6 Rhh8 Nfg5 Rh7 Bd1 Rg3 Nf3 Rgg7 Bc2 Rc7 Bd1 Rcd7 Ra7+
2r1BN2/NQ6/r3p2p/nb3p1r/2B5/1n1pq2R/krNbq1PP/NR1K2n1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 f4 fxe4 f5 a5 f6 axb4 Bd2 Kf7 Bg5 Ke6 f7 Kd6 Bh4 Kc6 Bf6 gxf6 c4 Kc5 a4 d5 a5 b5 a6 e3 a7 d3 Na3 d4 Qe2 d2+ Kd1 h6 Qf3 b3 Ne2 Kb4 c5 e6 c6 b2 c7 Kb3 Qh3 b1N Qf3 b4 Qc6 Bd7 c8B Na6 Ra2 Ne7 Ng3 Qb6 Qd6 Nc5 Qf4 Bb5 Qd6 Nc6 Ra1 Na5 Bd3 f5 Ke2 d1R Qe7 Nc3+ Kf3 e2 Ra2 e1Q Nc2 Ne2 Qb7 Ra1 Nf1 Rg8 Bd7 Rc8 a8N Rg5 Nfe3 Rh5 Be8 Ng1+ Kf4 Bg7 f8N Qd2 Nc7 Qf2+ Qf3 Bf6 Ra3+ Kb2 Bf1 b3 Bc4 Ra2 Na1 Bg5+ Ke5 Kb1 Nec2 b2 Qb7 Bd2 Rg3 d3 Rh3 Ba4 Nb5 Ncb3 Na7 Bb5 Qc6 Ra3 Qd5 Ka2 Qb7 Ne2 Rg1 b1R Rd1 Rb2 Rb1 Ng1 Ne3 Qe2 Kf4 Nc6 Kg3 Ra6 Nec2 Qc5 Nd4 Qee5+ Kf2 Na5 Kf1 Be3 Ke1 Bd2+ Kd1 Qe3 Ndc2 Qf2 Bg6 Qce3 Be8 Qfe2#
R4b2/2Q2N2/1p5K/pPn1P2B/1B4Nq/1pRb2pN/1q1k1qrN/2bqnr2 w - - 0 1 illegal: No proof kernel
qQ1nRBr1/q1R1K2n/p1r1bNn1/b2B1p2/k3Bp1P/8/1BP2pn1/q1N5 w - - 0 1 illegal: No proof kernel
R2K3k/qq2N1p1/1n2R1p1/1P1bNp2/Pr1p1n2/bb6/1QbNN3/Br4qB w - - 0 1 illegal: No proof kernel
R2n2BQ/1q1rbPqq/1pk1np2/R2b1N2/R1qp1B2/3r4/pP5N/3K1Rb1 w - - 0 1 illegal: No proof kernel
1q3bbr/4pB2/1N1Bn1b1/4PBn1/1b1qRppP/r1nN3k/2K2Q1p/3B3R w - - 0 1 illegal: No proof kernel
3R1N1K/3p2Qr/k6n/pqPpp2P/R2B2bb/3Bnq1q/2Br1rNB/6r1 w - - 0 1 illegal: No possible last move
4kN2/2PrpbK1/QN2r2B/2RBpB2/1BnpR1qn/2r1P3/6p1/b1q1r1b1 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 d5 hxg4 d6 f6 Qd3 cxd6 Qg3 d5 Qe3 d4 Qe5 fxe5 Kd2 g5 Kd3 b5 Ke4 g3 Kf5 d5+ Kg6 d3 f4 d2 c4 d1R h4 g4 a4 d4 h5 b3 f5 b2 h6 b4 f6 b3 c5 g2 f7+ Kd7 h7 Rd2 a5 Rd3 a6 Bh6 f8B Ra7 c6+ Ke8 Bd2 Nd7 Bb4 Bc1 e3 Nh6 Ne2 g1B Ra5 g3 Nd2 b1Q Bh3 g2 Rc5 b2 Nc4 Nb6 Nf4 Qd7 Ne6 Nf5 Rh2 Rb7 a7 Rc3 a8B Qa1 Bg4 b1R Rh4 Bb2 Bg7 Rf1 Nf8 Re1 Bh3 Rg8 h8Q Qc1 Re4 Ba1 Qh6 Nh4+ Kh7 Rc7 Qe6 Ba6 Bh6 Rg6 Bg4 Rf6 Kg7 Bb5 Qd6 Qf5 Qe6 Rd7 c7 Bc6 Bb7 Bd5 Bh3 Qf3 Bf5 Qh5 Qd6 Bf7 Bd5 Re6 Qc6 Qhd1 Qa4 Qf3 Qa6 Qf4 Nb2 Nc4 Na4 Qf3 Nb6 Qg4+
1Q5B/pRNqpb2/4p1B1/3PKbnN/1bqR1rr1/1B2p3/P2b2n1/2r1B2k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 bxc4 e5 g5 e6 gxh4 Qf3 fxe6 Qe4 dxe4 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 h5 b4 c5 g4 c3 b5 c2 b6 c4 g5 e3 b7 c3 f3 h3 g6 h4 g7 h2 Nh3 Nc6 b8Q Qd7 Qb2 Nb4 Nf2 h3 Nd3 Rh4+ Kg3 Nh6 g8B Nf7 f4 Ke4 d5 Bg7 f5 Ng5 f6 Rf4 Bd2 c1Q f7 c2 f8B Bc3 Ne1 Nd3 Bg7 Bb4 Ng2 Ne1 Na3 Rb8 Rg1 h1R Bc4 h2 Bb3 Bb7 Bf6 Bc6 Bf7 Rg8 Bh8 Bb5 Be8 Be2 Qb1 Bh5 Nb5 Bf7 Nc7 Rg6 Rf1 Rg1 Qb2 h1B Rb1 Rg8 Bdc3 Rg7 Rf2 Rf1 Rd2 Rg6 Nh4 Ng2 Nf5 Rg1 Ng7 Re1 Kh2 Kf3 Nh5 Rg1 Rd3 Qf1 Be1 c1B Qe5 Bcd2 Rd4 Qc4 Qd6 Rg8 Qb6 Rg6 Qb8 Rf1 Bg3 Rc1 Be1 Ke2 Kg3 Kf1 Rb2 Kg1 Rb1 Nh4 Rb2 Be4 Rb1 Ng2 Rb2 Bg8 Bf7 Rg7 Bg6 Kh1 Rb1 Bf7 Rb2 Rf6 Rb1 Bf5 Rb2 Nh4 Kf4 Ng2+ Ke5 Bb1 Qb6 Rf4 Qb8 Bf5 Ba4 Ba3 Rb7 Bab4 Bb3 Rh7 Nf6 Rhh4 Nh5 Rhg4
b4rr1/4p1bp/rrBp4/1B2rn2/1K1PQ1np/N1N4k/1R1P3r/q1R2R1R w - - 0 1 illegal: Other
1rk1N2b/1b1pp1nb/B2b1R2/P5np/3PpR2/KR1R1B1N/3Q1b2/1b1r1q2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 c5 fxe4 Ba3 b6 b5 bxc5 Bb4 axb4 Qb3 c4 Qc2 Ra7 Qd1 Ra8 g4 c5 a4 h5 f4 h3 d4 b3 Kd2 h2 Kc3 b2 f5 Nf6 g5 Bg7 g6 Nc6 b6 Nh7 b7 Ng5 b8R Bb7 Na3 b1B Kb2 c3+ Kb3 c2 f6 c1B Qf3 Be3 Qd1 c4+ Kb2 Bf2 Nb5 c3+ Ka3 c2 Be2 Ra5 Qd2 c1B+ Qb2 Ra8 Bf3 Bf4 Nh3 Bd6+ Qb4 Qc8 f7+ Kd8 Rf1 h1B Nc7 Bg2 Ne8 Rg8 f8R Bh8 g7 Ra7 Ng1 Bh3 Rf6 Bf5 Nh3 Bh7 Rf4 Rf8 g8B Ra5 Bc4 Rc5 Bb3 Rc1 a5 Rd1 Bc4 Rg8 Ba6 Rf8 Nf6 Kc7 Ra2 Nd8 Rd2 Nde6 Rd3 Ng7 Ne8+ Kd8 Ra8 Rg8 Ra7 Qc4 Rf6 Bc6 Rb7 Kc8 Rb6+ Bb7 Rf4 Bb8 Qd2 Qb5 Rbf6 Qf5 Re1 Qb5 Rb3 Qf1 Ree3 Bd6+ Ka4 Bb8 Nd6+ Kc7 Red3 Rc8 Kb4 Kd8 Ne8 Bd6+ Kb5 Rb8 Ka4 Bc7 Kb4 Kc8 Ka3 Bd6+
3q2b1/8/N2rnrR1/N1Q2bB1/b2Bp1kp/Nr1nP2p/rN1P2pb/2R4K w - - 0 1 legal: proof: g4 a5 c4 g5 h4 gxh4 b4 axb4 g5 d5 Bh3 dxc4 Bg4 f5 Bb2 fxg4 Ba3 Bh6 Bc1 Bf8 Kf1 h3 f4 Kf7 a4 Kg6 e3 Kh5 f5 e5 g6 b5 f6 c5 g7 c3 a5 c4 a6 c2 a7 c3 f7 b3 Qe2 b2 Ra3 b4 Qd3 b3 Rh2 Nd7 Qd5 Bd6 f8B Ngf6 g8N Ne4 Ra4 Nf2 Ra6 Nc5 Qf3 Bf5 Na3 b1B Bh6 b2 Qh1 Ba2 Bf4 b1B Ne7 Rf8 Bb2 e4 Nf3 c1R+ Ne1 c2 Kg1 Bg8 Nb5 h6 Ra1 Rf6 Nc6 Ne6 Bd4 Ba2 Rb1 Bb3 Rg2 Be5 Ra1 Rb1 Qh2 Rb2 Nd3 Bd6 Rf1 c1R Rg3 Rcb1 Rc1 Ra2 Na5 Ba4 Na3 Rb3 Nb2 Nd3 Kh1 Rc8 a8N Rc6 Nc7 Kh4 Bde5 h5 Bd4 Be5 Na6 Rd6 Bh6 Bf4 Bf8 Kg5 Rg2 h4 Bh6+ Kh5 Rgg1 Bfh7 Qf2 Bh2 Qf4 Bg6 Qe5+ Bf5 Qc5 Bc6 Rgf1 Ba4 Rf4 g3 Rg4 Nc7 Rg6 Ne6 Bg5 Kg4 Rc3 Bh7 Rc2 Bg8 Rc1 g2+
4R2B/kn1r3B/Nb1N1N1q/4Q2P/pK3nb1/1b1NP2b/2p2ppr/Rr4r1 w - - 0 1 illegal: No proof kernel
1R2n2R/3P1Npb/bR4p1/1bp3Q1/NrB1rB2/bp2nr2/1Rr1P3/3K2qk w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 g5 e5 g6 exf4 Qb3 hxg6 Qa4+ Ke7 Qd1 Ke8 d4 Ke7 a4 Kf6 h4 Kf5 a5 Kg4 d5 Kg3 h5 b5 h6 f5 a6 f3 d6 c3 d7 b3 a7 b2 h7 c2 Qd6+ f4 Rh4 f2+ Kd2 b4 Qd3+ f3 Rc4 Kh2 Rg4 b3 Ra5 Nh6 Rgg5 Na6 Qf5 Rb8 a8R Ng4 Qf7 Kh1 Rab5 Ba3 Rbc5 Ne3 Rgf5 Rb4 Ra7 Re8 Bh3 f1R h8R f2 Qg8 Ree4 Rce5 c5 Ra8 Qg5 Rd5 Nc7 Qd8 Ne8 Nc3 b1B Nf3 Ba6 Ne5 Qg1 Rf6 Bb5 Na4 Ba6 Bb2 c1R Rb6 Bbd3 Rab8 Bdb5 Nf7 Rc3 Qe7 Rfc1 Qe5 f1B Be6+ Bh3 Qg5 Rf1 Rd3 Rf3 Bc1 Nf1+ Kd1 Rcc4 Rd2 Rc2 Rf8 Bg4 Bc4 Be6 Rh8+ Rh4 Nd8 Bg8 Nf7 Bh7 Qe7 Rcc3 Rb2 Rc2 Qg5 Re4 Bf4 Ne3#
2n1rN1Q/2B1PN2/3p4/Bkp3R1/npb5/2P1pp2/B3rb1B/KqRn2qb w - - 0 1 illegal: No proof kernel
q2R3Q/3p2pp/1b1p1R2/1n2rbb1/2Np1qRr/5NP1/4q1nP/k2KBBR1 w - - 0 1 legal: proof: d4 a5 e4 f6 b4 axb4 e5 fxe5 Qd2 exd4 Qh6 Nc6 Qe6 Nb8 Qd6 cxd6 a4 Kf7 c4 Ke6 f4 b5 a5 b3 c5 Kd5 c6 e5 c7 b4 g3 e4 f5 e3 a6 e2 a7 Kc4 f6 b2 f7 Kb3 Bg2 Be7 f8R Nf6 Rg8 Na6 Na3 b1Q Bf1 Qb2 Be3 Bb7 c8R Ng4 Nb1 Be4 Rf8 Bf5 Rb8 Bg5 Bh3 Nc7 Rb6 Nb5 Bf4 Ne3 Re8 Rf8 Bf1 Ng2+ Kf2 Qc8 Bd2 e1B+ Ke2 Qa6 Re6 Rae8 Re4 Re5 a8Q Rf6 Qf8 Qa8 Rb8 Rh6 Kd1 Rh4 Rd8 Qba2 Na3 Kb2 Qh8 b3 Ba5 Bb4 Rf4 Bc5 Rg4 Ba7 Be1 Bb6 Nb1 Q2a6 Nd2 Qa2 Rc1 Q2a6 Rc5 Ka1 Ngf3 b2 Rg1 b1Q+ Rc1 Ka2 Nc4 Qbe4 Rc3 Ka1 Re3 Qf4 Re4 Rd5 Re6 Re5 Rh6 Qa2 Rf6 Qe2+
Nq2q2k/Pp1R4/bn1Nrp1b/1Q1Npr2/6N1/B1B3np/p3RP2/1qb4K w - - 0 1 illegal: No proof kernel
1B1n4/R2bp2N/2pqP2N/2R2b1b/1p4p1/K2kp1Br/1Prn1b2/B1B1Q2n w - - 0 1 illegal: Other
n2bN2R/1p2b1BN/4b3/rB2Brp1/3RqP2/3QnK2/1pr1pP1p/kb1B4 w - - 0 1 illegal: Other
N7/P5bK/2pn2N1/1R1p1nbP/2k1r1pN/2pb4/1npr2Rb/Q1BBqN2 w - - 0 1 illegal: No proof kernel
1R1q3r/R4r1Q/p1R1pp1n/2Br4/PPK2N1p/Nb5r/kq4p1/2bnB1R1 w - - 0 1 illegal: No proof kernel
B6r/pPr1p1nB/4p2B/p2r2qq/k3rN2/Bb1Kb3/2P2Np1/2RQRn2 w - - 0 1 illegal: No proof kernel
4N1NN/2p4n/1N1pRQ2/R1p3Kb/pP3pP1/1nr3p1/B1qrn2k/2B1b2n w - - 0 1 illegal: No proof kernel
QBqq4/2pp3p/N1Rp2b1/kPp1pNb1/5np1/1r1P3r/1K1R4/nR2B2R w - - 0 1 illegal: No proof kernel
QB2N3/R6Q/qn5R/Qrb1P1PK/n3b3/n1R1q3/rBb2qkq/8 w - - 0 1 legal: proof: f4 g5 b4 e5 h4 gxh4 c4 exf4 a4 b5 axb5 d5 cxd5 c6 b6 a6 e3 a5 Bb5 cxb5 Nc3 Nh6 bxa5 Ng8 Na4 bxa4 Ke2 Kd7 Kf3 Kd6 g4 Ke5 g5 f5 d3 h5 e4 h3 d6 h4 d7 a3 b7 h2 a6 a2 a7 h3 Qf1 Bc5 Ne2 Qb6 d8Q Ne7 Nc3 Nd5 Qe2 Nd7 Rf1 h1B+ Qg2 h2 Nb1 Nc3 b8R Na4 Nc3 Qa6 Rb5 Ndb6 Rd1 Be6 Ba3 Bb3 Rdc1 Bc2 Nd5 Kd4 Qd7 Rhb8 e5 Rb7 Qh7 Rbb8 Rab1 a1N Ra5 Rb7 Nf6 Rbb8 Kf2 f3 Kg3 Ke3 Kh4 f4 d4 f2 d5 f1Q d6 f3 d7 f2 d8B Qfe2 Bc7 f1Q Qd5 Kf2 Ne8 Qe3 Bb2 Bhe4 Kh5 Kg2 Bd6 Rb7 Bb8 Qff2 Qa2 Bb3 Rh1 Nc2 Rbc1 Na3 Rc3 Bbc2 Rd1 Nd7 Rd6 Rb5 Rh6 Ndb6 Bc7 Rd8 a8Q Rd2 Bb8 h1Q+ Kg4 Qhg1 Kh5 Rd1 Q2d5 Ra1 Qd2 Ra2 Qd8 Qb7 Ra7 Qa6 Qdd5 Bf8 Qc5 Bd6 Qb4 Bc5 Qa5 Qh2+
b4Q2/Kp2n3/Q1bP2RN/q3qq1R/4BPpN/7q/1k1r2Qp/1b5N w - - 0 1 illegal: Other
r1BR1n1b/1KqQQ3/R1rB1P1r/rP1k2q1/1q6/nN2bR2/n7/1Bn5 w - - 0 1 illegal: No possible last move
3kr2n/2R4K/nQPqB3/7n/q1qN2b1/rR4p1/1brPbQQ1/2RB4 w - - 0 1 legal: proof: e4 f5 exf5 c5 a4 b5 axb5 Qb6 Qf3 Qa5 Qd1 Qd8 b4 d6 c4 cxb4 c5 d5 Qc2 Nh6 Qc3 Ng8 Qc4 dxc4 g4 h6 f4 Nd7 Bb2 Nb8 f6 g6 f5 g5 Be5 Qd6 Bf4 Qd8 Nc3 gxf4 Ne4 h5 g5 Kf7 Nf2 Ke8 Ng4 hxg4 Kf2 a5 h4 e5 b6 b3 b7 b2 h5 b1Q c6 f3 Ke3 g3 g6 c3 g7 a4 h6 e4 Kf4 c2 Kg5 c1R Kg6 a3 h7 e3 Bd3 a2 Rh2 e2 Bc2 e1N Bd1 f2 Nf3 f1B Nd4 Na6 b8R Rc2 Rb3 Nh6 g8B Bg7 Be6 Qd6 f7+ Kd8 f6 Re8 f8Q Be2 h8Q Ng2 f7 Nf4+ Kh7 Nh5 Rh4 Qb2 Rc1 a1Q Qfg8 Qa5 f8Q Qba2 Qf2 Q5a4 Qgf7 Bd7 Q7f3 Nf7 Q3g2 Bf6 Qg7 Nh8 Qf7 Bc8 Qb7 Qc4 Rg4 Qaa4 Rg7 Be5 Rc7 Bg7 Bg8 Bcg4 Be6 Bf6 Nf5 Bb2 Nd4 Rb8 Qa7 Rb5 Qb7 Re5 Qb6 Re3 Rb4 Ra3 Rb5 Rcc3 Rb3 Rc2
2b2n1B/QR1P1q1R/1K3n2/2rB2k1/5bNp/2r3Qq/4b2P/r1BqR1n1 w - - 0 1 legal: proof: b4 b5 e4 d5 a4 dxe4 axb5 c5 bxc5 f5 d4 a6 g4 fxg4 Na3 axb5 Nc4 Kf7 Nb2 Ke8 Nd3 exd3 Kd2 Kf7 Ke3 Kg6 f4 h5 c4 e5 c6 b4 c7 h4 c5 e4 c6 b3 d5 b2 Kd4 b1R d6 d2 Kc5 e3 f5+ Kg5 f6 e2 f7 e1Q Ra2 g3 Ba3 g2 Bc4 Qf1 Qb3 d1B Bd5 Nf6 Kb6 Qe7 Rb2 Ra5 Qg3+ Bdg4 Rb3 Rc5 Bc1+ Qe3 Rb2 Ra1 Rb5 Be7 f8B g6 Bg7 Rh5 Bh8 Rc3+ Rc5 Qef4 Rb5 Bd8 Ne2 g1Q+ Nd4 Qh3 Rb3 Qd1 Nf5 Be7 Ne3 Bd8 Re1 Nbd7+ Kb5 Nf8 d7 Be7 Kb6 Bd6 Rb2 Qf5 Rb1 Bf4 Rb2 Ba6 c8R Qe6 Rb5 Qf7 c7 Bb7 Re8 Ba6 Re7 Bc8 Qf2 Be2 Qg3+ Kh6 Rb1 g5 Rb4 g4 Rb3 Qe8 Rh7+ Kg5 Rb5 Qf7 Rb1 Bb7 c8Q Bba6 Qc7 Bc8 Qf3 g3 Qa7 g2 Ng4 g1N Qg3 Rb3+ Kc5 Rd3 Rb7 Rc3+ Kb6 Kg6 Bc4 Rc5 Bd5 Kg5
Nq6/q1n3rr/r2k1NRR/n5Qb/3P1p2/NqBbP1n1/r2R2Q1/2K5 w - - 0 1 legal: proof: f4 a5 b4 d5 bxa5 g5 a4 e5 c4 dxc4 h4 gxh4 e3 exf4 a6 b5 a7 Bh3 a5 Bc5 Bd3 Bb6 axb6 Bf5 b7 Bh3 Bf5 Bg4 Bc8 Bxc8 d4 Kd7 Kd2 f5 g4 c5 g5 h5 g6 h3 g7 b4 Qg4 f3 Ba3 c3+ Kd1 h4 Qf4 b3 Qg4 c2+ Kd2 c1R Qg2 b2 Ne2 c4 Qg3 f2 Re1 f1B Nec3 f4 Ra2 h2 Re2 h1R Qg2 h3 Bb4 h2 Bf8 Nf6 g8Q Nd5 Q8g5 Rh6 Nd1 c3+ Kd3 c2 Kd2 Ra6 Qg1 Nc7 Ra4 Nc6 b8R Na5 Bh6 Kd6 Q1g2 Bg4 Ndc3 Bh5 Na3 b1Q Nd5 Qb3 Nf6 Ra1 Rb7 Ra2 Kc1 Qb8 Rd2 Rg1 Rbb4 h1N Rc4 Ng3 Bf8+ Ke6 Bb4 Bd3+ Rd1 Rh1 Bc3 Kd6 Rc5 Rh4 Rd2 Rg4 Qg8 Rg7 Rg5 Rh7 Rg4 Q8b7 Qg7 Rg8 a8N Qb8 Rg6 Qa7 Rh6 Qbb8 Qg4 Rgg7 Rc4 Qb3 Rc5 Qab8 Rg5 Qa7 Rgg6 Qbb8 Rd1 Qb3 Qg5 Qab8 Kd2 c1Q+ Ke1 Qa7 Qh4 Qbb7 Qg5 Qcb2 Rd2 Ne2 Kd1 Qbb8 Qh3 Q2b6 Qhg2 Ng3+ Kc1 Qb3
n1KN1q2/4nq2/nB1B3Q/1N3nQp/1r6/Rb2qBnP/2P1r3/1qk2N2 w - - 0 1 legal: proof: e4 b5 b4 f5 g4 d5 a3 dxe4 a4 c5 axb5 cxb4 Ra2 fxg4 Ra3 a5 Rb3 a4 Bd3 axb3 Be2 e6 Bf1 Bc5 Nh3 Bd4 Ng1 Ba7 b6 Qh4 bxa7 Qd8 Ke2 Ke7 Ke3 Kd6 Kd4 g5 f4 h5 h3 g3 f5 g4 d3 e3 f6 g2 f7 b2 f8Q+ Ne7 Qf7 e5+ Ke4 Kc5 Qe2 b3 d4+ Kb4 d5 g3 d6 Be6 d7 Re8 Qg6 Na6 Nf3 g1Q Qh2 g2 Be2 Qf1 Qg1 Rb8 Bd1 e2 a8N e1N Nbd2 Ka3 Qb6 g1N Qf6 Ne2 Qf4 Ng3+ Ke3 e4 Kd4 e3 Ke5 e2 Kd6 Ng2 Qb5 e1Q Qh6 Nh4 Ne5 Qe3 Nc6 Qf7 Qbg5 Rb4 Nf1 Qc8 Bd2 b1N d8B Kb2 Bb6 Nc3 Bf3 Ncd5 Nd8 Ndc7 Bc1+ Kb1 Ba3 b2 Rg1 Bd5 Rg2 Qb8 Kd7 Bb3 Rd2 Kc1 Rd3 Nhf5 Rc3 Rg4 Bd6 b1Q Rd3 Rb4 Rc3 Ne6 Nc7 Qa8 Nb5 Nec7 Rd3 Qb8 Rc3 Na8 Rd3 Ba2 Ra3 Bb3 Bdc5 Qbf4 Bd6 Qf8 Qh4 Qc4 Q4g5 Qcf7 Qe6 Ng8+ Be7 Qf4 Kc8 Qd2 Bd6 Qf4 Qeh6 Re2 Qe6 Qe3 Qeh6 Nge7+
2rRn2b/N3Qb1N/qP3Rqk/5p2/1r6/QQq3qN/qP1K1p2/B5q1 w - - 0 1 illegal: Other
1N2Bk2/K3q3/P1p2p1r/qn2NPB1/3N1b1Q/1nQn1n2/5n1R/B4bn1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 c3 bxc3 Qd3 gxh4 Qd6 Nc6 Qd1 Nb8 a4 d5 e4 b5 a5 d4 Ra4 bxa4 Rh3 Ra6 Rh2 Rd6 Rh1 Rd5 exd5 Qg5 Ke2 Qf6 Ke1 Qd8 Ke2 h5 Kd3 c2 Kc4 a3 Kb5 a2 g4 a1Q f4 d3 f5 h3 d6 h2 g5 h4 g6 c6+ Kc5 d2 g7 h3 e6 Qe7 Kb6 Rh6 Be2 Nf6 g8N Ng4 Qe1 d1N Na3 Ne5 Qc3 Ba6 Nc4 Nb2 Bh5 Nbd3 Bb2 c1N Nf3 Nb3 Nd4 Nf3 Ne5 Bg7 d7+ Kf8 d8B Qaa3 Rd1 h1N Ba1 h2 Nf6 Nhf2 Rd2 h1N Rb2 Nh3 Rh2 N1f2 Nfd7+ Kg8 Bg6 Nhg1 Ka7 Bb5 Bh5 Na6 Bg6 Nc7 a6 Qa5 Nb8 Kf8 Bh5 Qeb4 Bg5 f6 Be8 Qe7 Bf4 Rh3 Bg5 Bh6 Bh4 Bf4 Bg5 Qd6 e7+ Kg7 Bg6 Rh6 e8Q Qe7 Qc8 Bc4 Be8 Kf8 Qe6 Ndc5 Qd5 Bf1 Qe4 Ncd3 Qee1 Nd1 Qg3 N1f2 Qh4 Nb5+
n3qb2/1R2n2n/1Q1b1R1p/1pP3r1/BQ4b1/2b3R1/k2NPQq1/4n1NK w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Nh3 d5 Ng1 d4 a4 g5 Ba3 bxa3 gxf5 b5 h3 g4 h4 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Bb4+ Nd2 Bc5 Nb1 Bf8 Kf2 Ke7 Kg2 Kd6 c4 Kc5 f6 Kb4 f7 d5 c5 a2 g6 f3+ Kh2 d3 a5 d4 a6 f2 g7 h6 a7 g3+ Kg2 d2 a8R d3 Na3 Bg4 Ra6 Ne7 g8Q Qe8 Nc2+ Kb3 Nf3 Nd7 Nh4 Nb6 Rg1 Na8 Qe1 d1N Qd2 Ne3+ Kh1 Ng2 Qg6 Ne1 Bh3 f1Q Na3 Rg8 Qb6 Rg5 Qf4 d2 Nc4 d1N Nf3 Nc3 Ncd2+ Kb2 Qe4 Ncd5 Qb4+ Kc2 Ra7 Nf6 Rb7 Nh7 Rb1 a1B Rd1 Bc8 Be6 Bc3 Bb3+ Kb2 Ba4+ Ka2 Rc1 Bg4 Rb1 Qf2 Rg2 Qf1+ Ng1 Re5 Rf2 Rg5 Rf6 g2+ Kh2 Ba1 Rb3 Bd4 Rg3 Bc3 Ngf3 g1B+ Kh1 Bh2+ Ng1 Bg7 Re3 Bd6 f8Q Bd4 Rg3 Bc3 Qh8 Bf8 Qg7 Ng2 Qg6 Ne1 Qf5 Bh5 Qff4 Bg4 Qf2 Qg2+
2qk1N2/q6r/R1Q1Ppb1/2Qr2K1/b3NR1P/2B1r3/Rp1q4/nr3qQ1 w - - 0 1 illegal: No possible last move
NkBR1N2/4QK2/3P4/np3r2/pp1R2r1/P5q1/2Qb1np1/3rbRNq w - - 0 1 legal: proof: f4 d5 e4 h5 c4 c5 g4 hxg4 b4 cxb4 f5 Bxf5 d3 e5 exd5 e4 Bf4 e3 Bg5 Be4 dxe4 Qb6 Bd8 Qxd8 Ke2 Kd7 Kd3 Kc7 Kd4 a5 Ke5 b5 h4 g5 h5 f5 Ke6 g3 a3 g2 c5 e2 e5 e1B c6 g4 h6 f4 h7 a4 Nc3 f3 Rh4 g3 Kf7 f2 e6 Qg5 e7 Nf6 e8Q Ne4 Qc2 Rg8 h8N Bh6 Ng6 Qe5 Bd3 Bhd2 Nf8 Rg4 Qe7+ Kc8 c7 Nc6 d6 Na5 Nd5 f1R+ Nf3 g1Q Nb6+ Kb7 Rd1 Re8 Na8 Nf2 Bf5 Qh1 Ng1 g2 Bc8+ Ka7 Rb1 Qg3 Ra1 Rg8 Rd4 Rg4 Bd7 Rb8 c8R Rb7 Rb1 Rc7 Rc1 Rc5 Rd8 Kb7 Bc8+ Kb8 Ra1 Rf5+ Ke8 Qhh2 Rb1 Qh1 Nf3 Rg1 Rb3 Rf1 Re3 Ne4 Ng1 Bf2 Rf3 Rd1 Rf4 Bfe1 Rf1 Rd5 Kf7 Nf2 Qc4 Rdg5 Qc2 Rf5+
2Kr1Q2/1P3pn1/B3qnbr/3p1R2/1q1pR2p/BQ5Q/1rP2q2/B1k2N2 w - - 0 1 legal: proof: f4 g5 b4 d5 h4 gxh4 a4 a5 e4 e5 b5 exf4 e5 Bd6 exd6 c5 d4 cxd4 Nc3 b6 Na2 Kd7 Nb4 axb4 a5 Ke8 axb6 Ra2 Kd2 Ra3 Ke1 Ra8 Ke2 Kd7 Kf3 Ke6 Kg4 Ke5+ d7 Ke4 b7 b3 b6 b2 Ne2 b1R Ba3 Ke3 Kf5 h5 g4 h3 g5 h2 g6 h4 g7 f3 Ng3 f2 Ba6 f1Q+ Ke5 Rb2 Kd6 Ne7 g8Q Qf2 Qf1 Kd2 Qh3 Ra7 Qf8 Qe8 Kc7 Nf5 d8B Rh6 Rae1 Nd7 Rhf1 h1Q Re4 Nf6 Bde7 Qhf3 Beb4+ Qc3+ Kb8 Ng7 Ba5 Qe2 Rf5 Qf2 Nf1+ Kc1 B5b4 Qc4 Bc3 Qb4 Kc7 Qc6+ Kd8 Bd7 b8Q Qe6 Qbg3 Rc7 b7 Bb5 Qf3 Rd7+ Kc8 Be2 Qd3 Bh5 Qc4 Bg6 Qb3 Qb5 Be7 Qb4 Bd6 Rb1 Ba1 Rb2 Bc5 Qb5 Ba3 Qbb6 Qa2 Qb4 Qab3 Rd8+
3qq3/NqkB1Pp1/4Q2r/R4r1B/1nP3rn/3pN1p1/2p2K2/1Qn1B1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1q2Q2Q/r1n2pB1/2nKQP2/nR1p3q/1R1pp3/R1P1b3/5Nk1/n1q2N2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 g5 h4 gxh4 e5 a5 Rh3 axb4 Rh2 Ra4 Rh1 Ra8 a4 d5 Be3 Ra6 Bc1 Rd6 exd6 Bd7 Ba6 Bb5 axb5 bxa6 b6 a5 Ke2 Kd7 Kd3 Ke6 g4 Ke5 b7 h5 g5 a4 g6 a3 f3 a2 d7 b3 g7 b2 c3 h3 Bh6 h4 Bc1 h2 Nd2 Kf4 Qe2 Kg3 f4 b1N f5 e5 f6 h3 Kc2 Nc6 Kb3 Qb8 d8Q Na3 Qe8 Nge7 g8Q+ Bg7 Ka4 Na5 Kb4 Nec6+ Kc5 Nb5 Qg4+ Kf2 Nf1 e4 Bh6 Nc7 Qge6 Kg2 Rb1 a1N Rb4 Ne7 Qh7 Nec6 Kd6 Rg8 Qh8 Rf8 Be3 Bh6 Bc1 Be3 Bd2 Bf2 Bh6 Be3 Bg7 Rg8 Nf3 Rf8 Ne5 Rg8 Nd3 Rf8 Ng3 Rg8 Rhb1 h1Q Nf1 h2 R1b3 Qg1 Nf2 h1Q Ra3 Qh5 Nh2 Qc1 Nf1 Qa7 b8R Qa8 R8b5 Qb8 Q8e7 Re8 Qd8 Re7 Qde8 Na8+ Kc5 Rc7 Kd6 Ra7+ Kc5 Nc7 Kd6 Qh4 Rb6 Qh7 R6b5 Qh5
8/8/bbB1b3/p1n1PR1n/1bkN1pN1/1pqpP1p1/5QBr/3NKQB1 w - - 0 1 legal: proof: b4 h5 d4 a5 g4 b5 gxh5 e5 a4 exd4 Ra3 Ra6 Re3+ Re6 f3 Re4 fxe4 c6 Rb3 bxa4 b5 c5 Rb4 cxb4 e3 Bb7 Nc3 Ba6 Nb1 Bc8 h4 Ke7 c4 Kd6 c5+ Ke6 c6 d5 b6 f5 c7 g5 b7 g4 h6 d3 h5 f4 h7 b3 h6 d4 Nh3 a3 Bg2 a2 Nf2 a1B Bd2 g3 Rh5 Kd6 Nc3 Bh3 c8B Qg5 Bd7 Kc5 Ng4 Kc4 Bc6 Nd7 b8N Qf6 Rf5 Bb4 Qc1 Nc5 Nd1+ Bac3 Qb1 Ba1 Qa2 Qg7 Bc3 Nf6 Qf2 Nh5 Qf1 Re8 h8Q Re6 h7 Rh6 Na6 Bb2 Nc7 B2a3 Qf2 Qf6 Nb5 d2+ Kf1 d3 Qc8 Qg7 h8Q Qd4 e5 Rh7 Bb2 Rh6 Bc1 Qa1 Nd4 Rh7 Nc3 d1B Ke1 Rh6 Bd2 Bf3+ Nd1 Bd5 Qc7 Be6 Qhd8 Ng7 Rf7 Na4 Bd7+ Bc5 Kf1 Rf6 Nh2 Bd5 Be1 Rf5 Qd2 Rh5 Qh8 Bhe6 Bf2 Bb4 Ke1 Bb7 Ng4 Ba6 Rf5 Rh7 Qc6 Rh6 Qf3 Bb6 Bg1 Rh2 Qf8 Nh5 Bc6 Be7 Qf1 Bed8 Qd6 Be7 Qdf2 Bf8 Qa3 Bd6 Qab2 Bb4+ Qbd2 Nc5 Qc3+ Qxc3+
7Q/1pn4K/nN1n1n2/1p1QBRBR/PpP4p/b5r1/rR1pn3/B3k3 w - - 0 1 legal: proof: c4 g5 h4 gxh4 b4 a6 c5 Nc6 b5 Na5 e3 Nc6 b6 cxb6 Bb5 axb5 d3 Nb8 e4 d5 Qb3 f5 Nc3 d4 Qd1 Qd5 exd5 Be6 Ne4 fxe4 Qb3 Bg4 Qc2 Bd1 Qd2 Bb3 Qd1 Bc4 dxc4 Ra3 Nh3 Ra4 Ng1 Ra8 Ke2 Kf7 g4 Kf6 f4 e5 c6 h5 d6 h3 g5+ Kf5 a3 Kg4 d7 Kg3 d8B d3+ Ke3 h2 f5 Na6 g6 Nf6 g7 Rg8 Nf3 Nc7 Rb1 h4 Bb2 Bd6 Rf1 h1N Ba1 Nf2 Rb2 Ra4 Qd2 Ra7 Qc3 d2 Qd4 Ra8 Qd5 Bf8 Ng1 Kg2 Ne2 Bd6 Nc3 Kg3 Ke2 e3 Na4 N2e4 Kd3 e2 Be7 e1N+ Ke3 Nfe8 f6 Nd3 f7 N4f6 f8B e4 Rf5 Nf4 Bd8 Bb4 Bd6 Ra7 Kd4 Kf2 Ke5 e3 Rh5 e2 Kf5 e1N Be5 Ne2 Kg6 Nd3 Kh6 Na6 c7 Ke1 c8R Nd6 Rc5 Ndf4 Be7 Ne6 Kg6 Nfe8 Bg5 Ne6c7 Kh7 Nf6+ Kg6 Rf8 g8Q Rf7 Kh6 Rg7 Qh8 Ra8 Bgf4 Rg3 Bg5 Bc3 Kg7 b4 Kg6 b5 Nb6 Rd8 Rb3 Bb2 a4 Ba3 Rb2 Re8 Bd4 Ree3 Be5 Rc3 Kg7 Ng8 Kh7 Rc2 Rb3 Ra2 Rb2 Nce8 Rc8 Nec7 Rf8 Na8 Rf3 N8c7 Rf5 Nf6+
N1q1rRnk/b1bb1Q1P/7Q/1P3qnb/BrbN4/2bB3r/4N2Q/K1b5 w - - 0 1 legal: proof: f4 b5 b4 f5 e4 g5 a4 c5 d4 cxd4 axb5 fxe4 g4 h6 f5 Rh7 Bf4 Rh8 Ra3 Nf6 Rg3 gxf4 g5 Ng8 g6 Na6 Rg4 Nb8 Rg5 hxg5 Kd2 e5 Kc1 a5 Kb2 d5 c4 f3 h4 a4 b6 d3 b5 a3+ Ka1 e3 g7 Kf7 h5 e2 f6 e1R b7 g4 c5 a2 h6 e4 c6 f2 c7 e3 Qc1 d4 Qc2 e2 Nf3 g3 Qa4 g2 Rh5 g1B Rh2 d2 Kb2 d1Q Qa3 a1B+ Ka2 d3 Qa4 d2 Qa7 Na6 b8N Nc5 Rh3 Bd7 c8Q Bc3 Rh5 Bd6 Qc7 Ne4 Na6 Ng5 Nd4 Qc8 Rh1 Ba3 Qh2 Bc1 Nc7 Kg6 f7 Kh7 f8Q Ba5 Nf5 Qc2+ Ka1 d1B Nd4 Qf5 Nc3 Rb8 Na8 Bc7 Bg2 Rf1 Be4 e1B Bd3 Bh5 Nce2 Bed2 Qf7 Rd1 Qa3 f1B Qa6 Bb4 Qae6 Rd2 Qef6 Rb2 Qfd6 Bc3 Qc6 Ne7 Qce6 Re8 g8B+ Kh8 h7 Rb6 Qh6 Rb4+ Ka2 Bf2 Rg1 Rf6 Rg4 Re6 Rf4 Re3 Rf3 Bce1 Rf4 Rh3 Ka1 Bg1 Qa2 Bed2 Bb3 Ng8 Ba4 Bge3 Qf7 Bf2 Nb3 Ba7 Rf3 Bg2 Rf4 Bd5 Nbd4 Bc4 Qfe6 Qc5 Rf8 Qf5 Qf7 Bc3+
nb4bN/k1P2q1r/nr2q3/B7/Qq4qQ/Qbqn2N1/1BnP4/BR3K2 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 b6 g5 Ra4 gxh4 Ra6 Qg5 Ra1 Qd8 c4 Qf6 b4 Qg5 e3 Qd8 b5 d6 Ra4 d5 Rb4 cxb4 c5 Qf6 Bd3 Qd8 Bc4 dxc4 g4 Kd7 b7 Kc7 c6 Kb6 e4 f5 g5 h5 g6 a5 g7 c3 e5 a4 e6 h3 e7 b3 e8Q c2 Na3 h4 Qdh5 h2 Qhf7 h3 Qe3+ Qd4 Qd7 b2 Qde6 b1Q Ke2 f3+ Kf2 f4 Qc4 Qb4 Kf1 f2 Qe4 Rh7 Qg2 Be6 Qg4 Qdc3 Qf5 Nf6 g8Q Bd6 Qfd3 Ne8 Ke2 f1B+ Kf2 f3 Qf7 Ka7 Qe2 Na6 Qh4 Bb8 Qd1 Bfc4 Ne2 Bb3 Re1 h1Q Ng3 h2 Qf8 Bg8 Nc4 a3 Ne5 a2 Bb2 c1N Ng6 a1N Nh8 Nc2 Qfe7 Qg4 Qa3 Nc7 Rg1 Nd3+ Kf1 f2 Qda1 Ndb4 Qa4 Qd5 Q1a3 h1Q Ba1 Kb6 Bb2 Qhe4 Ba1 Ba7 b8B Qde6 Bb2 Nd3 Rh1 Nd5 Be5 Bb8 c7 Kb7 b6 Qeb4 Ba1 Nac5 Bd4 Ra6 Rg1 Ka8 b7+ Ka7 Bg7 Nb6 Bf6 Qcc4 Bfb2 Na8 Kg2 Kb6 Rd1 Qcc3 Rb1 Ba7 b8B f1Q+ Kh2 Qff7 Kg1 Kb7 Kg2 Rc6 Kg1 Na6+ Kg2 Bd4 Ba7 Rd6 Bb6 Rc6 Ba5 Ba7 Re1 Rb6 Rb1 Bb8 Kg1 Ka7 Kg2 Nf4+ Kf1 Nd3+
3rb1n1/6bk/2bKn3/nr1QR3/r1Q1NbN1/2Q2Pb1/5RBP/bRnq4 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 c5 a4 cxd4 b5 f5 Bd2 fxe4 Bb4 axb4 a5 b6 axb6 Ra3 Nh3 Ra2 Ng1 Ra8 Ke2 Kf7 c4 Kg6 b7 e5 b6 d5 f3 b3 c5 e3 Kd3 b2 c6 e4+ Kc2 g3 Kb3 g2 c7 e2 Qd3 e1N Qb5 e3 Bc4 e2 Qa5 d3 Nc3 b1R+ Ka4 d2 Bb5 d1N Bc4 d4 Bd5 d3 Bf7+ Kh7 Ra2 g5 Ne4 g4 Nc5 d2 Be6 g3 Bd5 Bd7+ Bc6 Na6 c8Q Ne3 b8Q d1B+ Ka3 Be8 b7 Ba4 Qa7 Nd3 b8R+ Nc7 Qg4 e1B Nh3 g1B Bd7 g2 Nf2 Rb5 Qb7 Nc1 Qc3 Ne6 Qgc4 Bg7 Ng4 Bg3 Rf2 Raa5 Bc8 Qd1 Qbd5 Bf4 Ne4 Bc6 Rd2 Bf2 Re1 B2g3 Rf2 g1B Ree2 Nf1 Re1 Nd2 Ba6 Ndb3 Bc8 Rc5 Kb4 Be8 Ree2 Bac6 Rb5 Ra3 Rb2 Ra7 Rb1 Na5 Qa1 Nc7 Re2 Nh6 Ne3 Bg6 Qde5 Nb7 Bh3 Rd8 Ng4 Bd4 Bg2 Ne6 Rf2 Bge8 Qa5 Ba1 Qec3 Rcd5 Rc5 Ng8 Qab5 R5d7 Re5 Ra3 Qbc5 Na5 Q5d5 Rb7+ Qdb5 Nd4 Kc5 Ra4 Qd5 Ra8 Qe2 Rb5+ Kd6 Ne6 Qec4 Rd8+
1nRn2B1/2B1Pb1Q/3K4/q2PnR1b/8/1QrN1nk1/Bn1b2nr/Q1b2r2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 h5 e4 b3 g4 c5+ Kc3 Ke5 d3 b2 g5 b1N+ Kb2 f3 b7 c3+ Kb3 h3 Kc4 c2 g6 f2 g7 h4 b6 f4 Kb5 h2 Nh3 c4 Qe1 f3 Qd1 c3 Qe1 Ra3 Rg1 h1N Rg6 Nd2 Rb1 Bg4 Qe2 Nh6 g8B Bb4 Ng5 Kf4 e5 h3 d4 h2 e6 Nf7 e7 Kg3 Qc4 Bh5 Rf6 Ba5 Bd3 f1N Kc5 f2 Qa2 Ne3 Rf5 f1R Ne6 Nf2 Bc4 h1B Qa1 Nfg4 Nf4 Ng2 Nd3 Nf3 Ba2 Nge5 Bg5 c1N d5 c2 Be3 Bd2 Bf4+ Kh4 Rb4 Rc3+ Rc4 Rh7 Kb4 Kg4 Rc8 Qc7 Bh2 Nd8 Bg3 Bf7 Kb5 Nbc6 b8Q Rh2 b7 Kh3 Qa8 Nb8 Qa6 Kg4 Qg6+ Kh3 Qh7+ Kg4 Nc5 Ncd3 Bf4 Nb2 Nd3 c1B Kb4 Nbd7 b8Q Qa7 Qb5 Nb8 Qc4 Qa4+ Kc5 Qb5+ Kd6 Qa5 Be3+ Kg3 Bb6 Nf4 Qb3 Bg2 Bb1 Bh3 Ba2 Ng2 Bc7 Bg4 Qb4 Bgh5 Qa3 Bhg6 Qb3 Bh5
rb4q1/bqk1B3/R2N2Qr/4qq1Q/6q1/b3P1P1/QR1KRn1n/b2B1q2 w - - 0 1 legal: proof: f4 b5 c4 d5 a4 dxc4 f5 bxa4 h3 g5 f6 Bg4 hxg4 exf6 Rh5 f5 Rh1 f4 Nc3 f3 Nd5 Qd6 Nf4 gxf4 Qc2 Qd3 Qd1 Qd8 b4 Kd7 d4 h5 d5 c5 b5 f5 g3 a5 g5 c3 b6 h4 b7 c2 d6 h3 g6 a3 g7 c4 Qd3 a2 Qd4 f2+ Kd2 h2 Qc3 f3 Bh3 f1Q Bb2 c1B+ Kc2 a4 Bg4 f2 Qf3 a3 Nh3 c3 Qg2 Be3 Kd3 c2 Bc1 Nf6 g8Q Nc6 b8Q Rh6 Qg6 Ba7 Ng5 Ne5+ Kd2 Nd3 e3 Qe2+ Kc3 f1Q Qb1 Nf2 Bf3 f4 Bb7 f3 Ne4 N6g4 Bb2 c1B Qh3 Be7 Qhh5 Qg8 Rg1 h1Q Rg2 Nh2 Bd5 Kd8 d7 Kc7 d8R Bd6 Bb3 Qed1 Qc2 Qde2 Rb1 a1Q Rf8 a2 Rf6 Bf4 Ra6 Qed1 Ba4 Qd7 Qe2 Qg4 Bd1 Bd6 Kc2 Be5 Bd4 Ba3 Kd2 Bed6 Bh8 Qe5 Bf6 a1B Be7 Qhg1 Qb5 Qh1 Qd5 Qb5 Qde6 Qhf1 Qa2 Qb7 Rb2 Qfb5 Rg1 Qbd7 Re1 Qdf5 Kc1 Bb8 Kd2 Bdc5 Nd6 Bca7 Kc1 Ne4 Re2 f2 Kc2 f1Q Kc1 Nf2 Kd2 Qef4 Rab6 Q5e5 Ra6 Qff5
1b2b3/1N1n2P1/1kq2Nqq/r1rq1N2/KnbB1n1Q/R7/1b4P1/Q3BnQ1 w - - 0 1 legal: proof: b4 a5 h4 axb4 e4 e5 d4 exd4 a4 g5 hxg5 c5 e5 f5 Bd3 c4 Be4 fxe4 Ra3 Bg7 Rb3 Bf8 Rd3 cxd3 Kd2 d5 c4 Kd7 f4 Kc7 e6 b5 e7 h5 e8N+ Kb6 g6 e3+ Ke1 b3 f5 b4 f6 b2 f7 d2+ Ke2 d3+ Kf3 b3 g7 d4 Ke4 e2 Nh3 e1B Ng1 h4 Nc3 b1Q Qf3 d1Q Qe2 b2 Ke5 d2 Nf6 h3 Qf1 d3 Nce4 h2 Nc5 Ne7 Ng4 Rh5+ Ke4 Ra5 Ne2 Nd7 Kd4 Nc6+ Kc3 Bg3 Nb7 Rac5 Qf2 Qe8 Qg1 Bb8 Nf6 Nb4 Nd4 Bfd6 f8B Be5 Be7 Qf3 Kb3 d1B+ Ka3 Qd5 Be3 d2 Nf5 Be2 Bd4 d1N Bd6 Ne3 a5+ Ka6 Ka4 Nf1 Be7 Qd3 Bd6 b1N Bf8 Ka7 a6 Kb6 a7 Qg3 a8Q Qgg6 Be3 Ba1 Bd4 Bb2 Bd6 Qee4 Bg3 Qee6 Be1 Nc3+ Kb3 Bd3 Qa1 Ne2 Ka4 Nf4 Ne8 Ka6 Nf6 Rb5 c5 Bc4 c6 Rg5 c7 Qec6 Qe3 Rh5 Rg1 h1Q Qf2 Qh2 Qh4 Qh3 Rh1 Qe3 Rh3 Rg5 Nc5+ Kb6 Rg3 Bb7 c8Q Qee6 Ra3 Qh6 Nh5 Qeg6 Nf6 Qc7 Qe8 Ne5 Bg1 Qd2 Nd4 Bc6 Qe7 Be8 Nb7 Nd7 Qe3 Rgc5 Nf5 Qd5 Qef2 Ng3 Qf1 Qcd6 Bd4 Q6c6 Qfh1 Nf1 Qg1 Ra5+
qq1R2B1/P3kPrb/1qQ5/1r1K1R1b/6bb/1RN2rQN/1bnN3r/2b5 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 g4 fxe4 f4 a5 f5 axb4 Bg5 h6 Bc1 Nc6 g5 Ne5 Bf4 Ng4 Be3 N4f6 gxf6 Qc7 Bf4 Qd8 Bg5 hxg5 Kf2 d5 h4 e5 c4 b5 a4 e3+ Kf3 e2 a5 e1B a6 b3 a7 e4+ Ke2 b4 f7+ Ke7 h5 g4 c5 g5 h6 d3+ Ke3 g3 Kd4 d2 h7 g2 c6 b2 c7 e3 Qg4 d1Q+ Nd2 b1R Bd3 e2 Rh3 b3 Ra2 b2 Ra5 Qb3 Ba6 Bh6 f8R Nf6 Kc5 d4 Rb5 d3 Ra5 Qb8 Bc4 Bh4 Qf4 e1B Bg8 g4 Rh2 g3 Ngf3 g1Q+ Rf2 g2 Ba2 Nd5 Nd4 Ne3 Bf7 Nc2 Nb5 Be6 Nc4 d2 c8Q d1B Nd2 Bh5 Nc3 Qh1 Qa6 g1R Rb5 Rg7 Rb3 Bd7 Kc4 Qdb6 Bg8 Bf6 Rf3 Beh4 Rd8 Rf1 Qc7 b1B Qg3 Bc8 Rf4 Rf3 Kd5 Be5 Na2 Bb2 Nc3 Q8c7 Qa4 Rb8 Qc6 Rb7 Rd6 Qb8 f6+ Kf8 Rd7 B6g5 Rd6 Bcg4 Rf5 Bf4 Nf1 Bfc1 Nd2 Rbe7 Rd7 Re4 Rd6 Rb4 Rd7 Qe1 Rd8+ Qe8 Be6 Rhg8 h8N Qa8 Nf7 Rh8 Ng5 Rh6 Rd6 Qeb8 Bg8 Rh8 f7 Ke7 Nh3 Na1 Rg5 Bh7 Rf5 Nc2 Rd7+ Kf8 Nf4 Bd8 Ndb1 B7g6 Re5 Rh6 Rd6 Bh7 Rf6 B5g6 Nd2 Rh2 Rd6 B6h5 Rf5 Bh4 Rd8+ Ke7 Nh3 Rb5+
2k1rK1N/2bbr2Q/r1P4r/1n2rN1b/1nPbB1N1/QbR2R2/n1r5/7Q w - - 0 1 illegal: No possible last move, all moves rejected
R1n3r1/2BR4/nqbQ4/1rbq3Q/BR4r1/1b4K1/P4Ppn/k1BbN1b1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 d4 Kd7 h4 Kd6 h5 g5 h6 e5 h7 b5 Qd2 c5 Rh2 g3 Qf4 g4 Ke2 g2 Rh4 c4 Rh1 b3 Qf5 c3 Rh5 c2 Nh3 g1B Bf4 c1R Na3 b2 Qg5 b1B Rh4 b4 Rh6+ Be6 Qg6 g3 Qg4 g2 Bd2 b3 Rh4 b2 Qf3 e3 Qf4 Be4 Rb1 Rc4 Rh5 Na6 Bc3 Ne7 Nc2 Rb8 Ng5 Nc8 Ne1 Rg8 h8Q Rb5 Nh7 Qb6 Bd2 Bf7 Rd1 b1B Nf6 Bbc2 Ng4 Bb3 Rh1 Bh5 Bc1 Be7 Rh4 Bf3+ Kd3 e2 Ke3 Be8 Qg3 Bc6 Qh5 Bf8 Qf4 Be7 Qf8 e4 Kf4 e3 Rd3 Rcc5 Kg3 Rc4 Nc2 e1Q Qf4+ Kd7 d6 Ke6 d7 e2 d8B Qea5 Ne1 Bc5 Bc7 Qd2 Qf8 Qg5 Rd1 Kd5 Qd6+ Ke4 d5 Qd8 Bd2 Kd4 Bc1+ Kc3 Qf4 Ba3 d6 Bc5 d7 Qg5 d8R Qd5 Nd3 e1N Qd6 Be2 Re8 Nf3 Ne1 Nh2 Rf8 Ne7 Ra8 Bf3 Bd3 Nc8 Bc2 Be2 Be3 Kb2 Bc1+ Ka1 Rd3 Re4 Rd4 Bd1 Rd2 Bc4 Ba4 Bcb3 Qd8 Qf7 Rd7 Qd5 Qe7 Rc4 Qd6 Re8 Ne5 Rd8 Rd4 Rg8+ Ng4 Rc2 Rb4 Rc3+ Kh4 Rc4 Kg3 Rcxg4+
1k1b1nR1/1b5Q/1qpbrP2/2b1RK2/N5r1/2Q3Rq/1B1PN1b1/1Q2r1qn w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Bd3 g6 Bf1 g5 b4 gxh4 b6 a6 b7 Kf7 b5 Ke8 b6 Ra7 Be2 Qd5 Bg4 Ra8 Be6 Qd8 Bd7+ Kf7 Bb5 axb5 Qe2 Ke8 Qf3 Qd5 Qd1 Qd8 Ke2 Kd7 Ke3 h5 Kf4 e5+ Kf5 e3 g4 b4 f4 h3 g5 e4 g6 b3 g7 h4 Ne2 c3 Ra4 b2 Qe1 c6 Ra3 c2 Qf1 h2 Kg6 h3 f5 Ne7+ Kf6 Rh4 g8Q Rg4 Ng1 e2 Rf3 e1B Rf2 e3 Rf3 e2 Rf4 Bh4+ Qg5 e1B Ke5 Beg3 Nc3 b1R Bb2 c1Q Ke4 Ra3 Nd5 Re3+ Kd4 Re6 Qg8 Kd6 Qg6 Nd7 b8R Bf2+ Kd3 Bc5 Nc3 Qc7 Qh6 Qa7 b7 Kc7 Nge2 Qd1 Rg1 h1B Na4 h2 Rg3 Bg2 Qh7 Bf6 Re3 h1Q Qf3 Qh6 Re5 Qh3 Ke4 Qg1 Bc3 Re1 Ra8 Ng8 Ba1 Bfd6 Bd4 Bfe7 f6 Nh6 Ba1 Nf5 b8Q+ Kd8 Qb1 Kc7 Bc3 Bb7 Rg8 Nf8 Ba1 Qb6 Bb2 Rg5 Rh4 Kb8 Rg4 Ng3+ Kf4 Rg7 Qc3 Nh1 Rg3 Rg4+ Kf5 Bd8
2q2q1R/3n1PQ1/1n1r2r1/Kb1k2q1/N6P/1p5R/bB1b1QqR/B1B2qn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 fxe4 f5 d5 cxd5 g6 g4 Ra4 f6 Ra3 Bh3 Ra8 Na3 Kd7 Nc2 Ke8 Nd4 h5 Nf5 gxf5 g5 Be6 Bg4 hxg4 Rb1 Bd7 Ra1 Bc8 d4 Kf7 Kd2 e5 h4 b5 a4 c5 a5 f4 d6 Ke6 a6 g3 g6 e3+ Kd3 e2 a7 e1Q d7 e4+ Kc2 e3 Kb3 c4+ Kc2 c3 Kb3 f3 g7 f2 f7 f1Q Ra5 c2 Qd2 g2 Nh3 g1N Bb2 c1Q Ra4 e2 Ba3 Qg2 Qf4 Qef1 Ng5+ Kd5 Ne6 e1Q Qf2 Qdg5 d8B Rh6 Bb2 Nd7 Ra3 Ba6 Rh2 Rg6 Bf6 Qc8 Nc5 Qe7 Na4 Nb6 Ba1 Rb8 a8R Qec5 Be5 Nf6 g8Q Bh6 Qg7 Nfd7 Bf4 Rb7 Bc1 Q5f8 Bab2 Rc7 Ba1 Rcc6 Bcb2 Ke4 d5 Rcf6 d6 Kd5 Ka2 Re6 Rah3 b3+ Ka3 Ref6 Bc1 b2 Kb4 b1B Ka5 b4 Bcb2 b3 Rb8 Ne5 d7 Bb5 d8B Ned7 Bc1 Rd6 Bdf6 Ba2 Bfb2 Qc7 Re8 Qc8 Rd8 Qfe7 Rh8 Qef8 Bd4 Qh5 Bdc3 Bd2 Bab2 Qhg5 Ba1 Bf4 B3b2 Bd2+
n1BnkBb1/n2Rqp1b/6rb/PnRP1Q2/2K1R2q/8/1rQB2N1/n4r2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Nc3 exf6 Ne4 f5 Ng3 f4 Ba3 fxg3 Bb2 Ra4 Bc1 Ra8 a4 c5 h4 b5 e4 g5 Ke2 b3 Kd3 b4 h5 c4+ Kd4 b2 d6 b1B e5 b3 e6 b2 d7+ Ke7 h6 c3 d3 g4 h7 c2 a5 Nf6 Rh3 Nc6+ Kc4 Bh6 d4 Rg8 h8B Na7 d5 Ne8 Kd3 Rb8 Kc4 Nc7 Rh2 Na8 Bd2 c1N Qe2 Nb3 Ra3 Na1 Nf3 g1Q Rh5 g2 Be3 g3 Ne1 Qh1 Rh3 g1N Bg7 g2 Rh4 Nf3 Kc5 g1R Bh3 Nd4 Rc3 Rf1 Ng2 Ndc6 Bg4 Be4 Qc2 b1N Bd2 Rb2 Rc4 Qf8 d8R Nc3 Bh3 Bf5 Rhe4 Ncb5 Rd6 Qe8 Bg4 Qh4 Bf8+ Kf6 Rc3 Nd8 e7+ Bce6 Rcc4 Qd7 e8Q Qc7+ Qc6 Qb7 Bg7+ Ke7 Qc8 Ke8 Bf8 Bg6 Bf5 Qbe7 Bh3 Bef5 Bg4 Nb3+ Kb4 Rg7 Rc5 Na1+ Kc4 Bh7 Bd1 Bg8 Bg4 Rg5 Qe6 Bg7 Qe5 Bfh7 Bc8 Rg3 Qf5 Bh6 Rd7 Rg6
nK1n4/4q2B/1RBb2p1/3q1P1b/2nRB1Q1/2Q1b3/qr3P1k/r1RNb1r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 h5 g6 Bb2 g5 g4 Kf7 Nc3 Ra6 Nd5 Ra8 Bf6 Ra3 Nf4 Qd7 Ng6 Ra8 Be5 Ra6 Bg3 Ke8 Bh4 gxh4 g5 Qd3 Nf4 Ra3 g6 Qd8 g7 Ra8 Ng6 hxg6 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 b5 a4 e5+ Ke4 Kg5 a5 b3 h6 h3 d5 Kh4 a6 b2 d6 b1N Kd5 b4 h7 e4 d7 e3 a7 h2 Qf3 e2 Ra2 e1B Qb3 c3 Ra6 c4 Ke6 c2 Ra4 c1B Qa3 b3 Qa2 b2 Be2 Qe7+ Kd5 Na6 Kc6 Bb7+ Kb6 Bf3 d8R Nc7 Bd3 Nd2 Ra6 b1Q+ Qb2 c3 Nh3 c2 Ng1 Qa2 Ne2 Kh3 Qb4 Bh5 Kb7 Nc4 Be4 Be3 Rb6 c1R Rd4 Nh6 g8B Nf7 Nc3 Ra1 Rf1 h1Q Nd1 Kh2 Rg1 Re8 a8B Nd8+ Kb8 Qf3 Bac6 Na8 Bf7 Rg8 h8Q Rg7 Bg8 Qg2 Bb1 Qd5 Bh7 Rf7 Rf1 Rf6 Qg7 Re6 Rg1 Re4 Rf1 Rg4 Be4 Rg1 Qf6 Qed7 Qg5 Re6 Qc3 Qe7 Bd7 Rc6 Qg4 Rc5 Bc6 Rb5 Qb3 Ba5 Qc3 Rb2 Re1 Bb4 Re2 Ba5 Rc2 Bb4 Rc1 Ba5 Qd3 Be1 Qc3 Qg7 Bf3 Bc5 Bh1 Qe7 Be4 Bd6+
5B1q/n1q1b1RQ/n1NPPB1r/4b2B/p3N3/k1b3n1/1r1r2K1/1QqnQ3 w - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 Kf2 e5 Ke1 exf4 Ra3 f3 Ra2 Qd6 Ra1 Qd8 b4 f5 Bb2 f4 Bc1 Bf5 gxf5 Nh6 Ra3 Ng8 Rd3 h5 Rd6 Ke7 Rg6 Ke8 Rg4 hxg4 Kf2 Ke7 h4 Kd6 e4 a5 d4 c5 f6 g5 h5 c3 b5 c4 h6 g3+ Ke1 c2 f7 g2 Kf2 a3 d5 Kc5 b6 Kb4 d6 a4 e5 c3 h7 a2 e6 a1B b7 g4 Na3 g3+ Ke1 f2+ Ke2 f3+ Ke3 Be7 f8B Na6 Bb2 c1Q+ Qd2 Rb8 Bc4 f1N+ Kf4 f2 Kf3 Ne3 Nb1 f1N Qd4 c2 Qd3 Nd1 Ne2 g1R Bb3 g2 Bf6 Bc3 Qe3 Ng3 Nd2 Ka3 Ne4 Re1 Rf1 g1B Kg2 Bh2 Nd4 Re2+ Qf2 Qa1 Rg1 c1Q Nc6 Rd2 Bc4 Qc7 Be2 Nf5 Bf3 Bhe5 Bh5 Ng3 Qe2 Nh6 Qf2 Nhf5 Qe2 Nd4 Qf2 Rd8 b8Q Nb5 Qb6 Na7 Qb1 Rb8 Qe2 Rg8 h8Q Rg6 Qh7 Rh6 Qf2 Ne2 Qe1 Rbb2 Kf3 Qa2 Rg7 Ng3 Qf2 Qb3 Kg2 Qbb8 Qe2 Qe8 Qf2 Qf7 Qe2 Qg8 Qf2 Qh8 Qe2 Nf2 Qe1 Nd1+
2Bn1r2/1q1p4/rR2b1q1/1Q1n2B1/P4qNb/1K4R1/1R2Q1bP/B2qnrk1 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 c5 b4 cxd4 Nd2 axb4 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Ra7 Ng4 hxg4 Bb5 Ra5 Bf1 Ra8 Kd2 Kf7 a4 b5 c4 e5 Kc2 d3+ Kb3 d2 g6+ Kf6 g7 Kg5 f6 Kh4 c5 f3 f7 e4 c6 f2 c7 g3 Ne2 g2 Nf4 g1Q Ne2 e3 Kb2 b3 Qe1 b4 Nc3 e2 Ra2 Qf6 Ra1 Bb7 c8R Be7 f8B Nc6 Rb1 d1Q Qd2 e1N Bc4 Kh3 Rc7 Kg2 Bb5 Nd8 Rc6 Ra5 Qd3 f1R Ba6 Qe3 Bd2 Qg6 Nd5 Bh4 Nf6 Ne7 g8Q Qeg5 Bc3 Qf4 Qgc4 Rg8 Bg7 Rf8 Bh6 Ba8 Bc8 Ra6 Bg5 Kf2 Ka1 b2+ Ka2 b3+ Ka3 Kg2 Rg1+ Kf2 Rd6 Be4 Qc6 Nd5 Rg3 Bg2 Qe2+ Kg1 Ng4 Nb4 Ra1 b1Q Ra2 b2 Qb7 Qbe4 Qbb5 b1B Rb6 Qb7 Ba1 Bf5 Rb2 Nd5 Ka2 Be6 Ka3 Qdd2 Kb3 Qd1+
1QN2KBR/r1PN1n2/Qq3q1R/1bb1q3/1kn2p2/1Pn1r2Q/8/1brn1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 d5+ Ke5 g5 h4 f5 c4 a5 e4 a4 h5 d3 b3 g2 b6 g3 h6 d2 h7 a3 b7 g4 Qc1 d1B Qc3 a2 Qc1 d4 Na3 d3 Qb1 d2 Rh6 f4 Nf3 g1N Bd3 g2 Ng5 g3 Nf7 Kb4 c5 Nd7+ Ke6 Ne2 c6 g1Q b8Q+ Qgb6 e5 g2 Bc4 g1R Qd3 Ba6 Qh3 Ra7 Nb5 Nc3 Nbd6 Bc2 c7 Bb5 Rf1 a1Q Qb7 d1N Qa6 Bb1 Bd5 Qd4 Nc8 Nb6 Bc4 Bc5 Bd5 Ne7 Bc4 Rf8 h8R Re8 Kf6 Rh1 Kg7 Ng8 Bd5 Qf2 e6 Nc4 Ne5 Qd6 Nd7 Qe5+ Kf7 Qab2 e7 Qfd4 Rf6 Nh6+ Kg7 Nf7 Be6 Rf8 e8Q Qbf2 Qd8 Re8 Bd5 Re7 Kf8 Qh4 Rfh6 Qhf6 Be4 Qdd6 Bh7 Qb6 Bg8 Nde3 Rf3 Rc1 Rf1 Re6+ Nd6 Re7 Qb8 Ned1 Nc8 Qee6 Ne5 Qd5 Nd7 Re3+ Ne7 Bd4 Nc8 Qdd6+ Ne7 Qde5 Nc8 Bc5+
b1bNr3/n2rQ1pK/1B3QP1/1Nb4B/2PQ3R/1br4q/k1b1rnN1/3r4 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 c5 f4 cxd4 g5 e5 a4 b5 axb5 exf4 Ra3 axb4 Rg3 Bb7 Rg2 Bc8 Rg4 hxg4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ d3 h4 d5+ Ke5 f5 c3 d4 h5 b3 b6 f3 g6 f2 b7 b2 h6 g3 h7 g2 Be2 f1B Rh6 f4 Bh5 d2 Be2+ d3 Rh5 f3 Rf5 f2 Rh5 Qd7 Nh3 g1R Nf4 Ra7 Rh4 Rg2 Bh5 Nf6 Qg4 Kb3 c4 d1R Na3 b1B Be3 d2 Nb5 Ba2 Bb6 Bc5 Qf5 Rf8 h8N Re8+ Qe6 Qd3 Nf7 Qh3 Nd8 Ng4+ Kf5 Be2 e5 Nc6 b8Q f1R Qd6 Rf3 Qd4 Rd7 Qf6 Na7 e6 Rc3 e7 Bf3 Ke6 Ba8 Kf7 Re2 Ng2 Nf2 Nf4 Kb2 Ng2 Rg8 Ba5 Bb3 Bb6 Rd6 e8Q Ka2 Qee7 Re8 Qf8 Rd7+ Kg8 Rdc1 Qe7 d1B Kh7 Bdc2 Qff6 Rd1
1NKN2q1/1R1R3R/6nr/4bk2/br1P4/N3b1r1/n1pr1BP1/Qn2Q1bb w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 h4 dxc4 f4 exf4 e3 g5 Ke2 gxh4 Kf2 f3 Be2 fxe2 Kf3 Kd7 Kg4 Ke6 b4 e1R e4 a5 b6 h5+ Kf4 f5 b5 c5 e5 c3 b7 c4 d3 h3 b6 h4 Qd2 h2 Ra3 h3 Nf3 a4 Rg1 h1R Nh2 Re3 Ng4 h2 Qf2 Bc5 Rb3 a3 Nd2 a2 Qg3 a1B Rd1 c2 Rb4 Ne7 Nh6 Bd7 Bb2 c1B Qe1 c3 Qf1 c2 Nb1 Ba4 Bd4 Nbc6 Nf7 Rb8 Na3 Rg3+ Rd2 Qe8 Qg1 Rd8 b8R Rh6 b7 Qg8 Ra8 Bc3 b8N B3b2 Rb5 Nb4 Ra7 Na2 Rc7 Rd6 Rbb7 Rb6 Qf1 Rb4 Qd1 Rg1 Qf1 h1B Nd8+ Kd5 e6 Bb6 Qe2 Rd1 Qg4 Ng6+ Kg5 f4 Kf6 f3 e7 f2 e8Q f1N Qe1 Ba7 Rh7 Kd6 Kf5 Ba1 Be3 Be5 Qd4+ Qd5 Qa1 Qg8 Bf4 Bf2 Be3 Bg1 Bf2 Kd5 Re2 Nd2 d4 Bf4 Re4 Nb1 Ree7 Bce3 Ref7 Bd6 Kf6 Ke4 Ke6 Qg7 Rfc7 Rd2 Re7 Qg8+ Ref7 Rb5 Kd7 Be5 Kc8 Rb4 Rfd7 Kf5
kN1r1R2/3NR2b/1B5b/1Q1qPbRP/b1b5/Q2r1Q1q/q1bn2np/K7 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 g4 h5 f4 hxg4 Bh3 b5 axb5 exf4 Kf1 gxh3 Kf2 Nh6 Ke1 Ng8 Kd2 a5 e4 g5 b4 d5 c4 Kd7 Kc2 Kc7 Kb2 Kb7 b6 f5 b5 h2 h5 d3 e5 d4 c5 a4 Ra3 f3 Ne2 g4 Rb3 a3+ Ka1 d2 Re1 a2 Rc3 g3 Qa4 d1B Rd3 f4 Qc4 f2 Rh1 f1B Rc3 g2 Qe6 g1Q Ba3 f3 Rc4 d3 Rd4 f2 Qh3 d2 Qf3+ Nc6 Nbc3 Bc2 Kb2 Qg4 Ne4 Nf6 Rg1 Nd5 Nf6 Qh3 Rg5 Nf4 Rd7+ Kb8 b7 Ng2 Re7 Bh6 Nd4 Bfd3 Bb4 f1B Ba5 Qd5 Bc7+ Ka7 b8R Na5 Bd8+ Bd7 Bc7 Be6 Nd7 Bh7 Rd8 Kb7 b6 Bc4 Nc6 Nb3 Rdg8 Bef5 Bd8 Ka6 b7 Ra7 b8Q Ra8 Qd6 Kb7 Bb6 Ra3 Ncb8 Ka8 R8g6 Rd8 c6 d1B Rg8 Nd2 Rh8 Ba4 Rf8 Rd3 Qa3 Bcb3 c7 Bdc2 c8Q Bc4 Qcc5 Ne4 Qb5 Nd2 Kc1 a1Q+ Qb1 Qc3 Qbb4 Rd4 Qb5 Qd3 Kb2 Qb3+ Ka1 Rd3 Qbb4 Ne4 Qc5 Nd2 Qb5 Qa2+
5B2/RrB1Q1bQ/1B2bpR1/1k1r3K/2q1n1P1/1Pb1qn1R/r2b4/b3b2N w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 h5 e4 b5 axb5 f5 g3 fxe4 f5 h4 f6 h3 Nc3 Kf7 Nd5 Ke6 f7 Kd6 Bg2 hxg2 Nf6 gxf6 Ke2 Kc5 c4 e5 h4 d5 b6 a5 b3 e3 Kf3 d3 b7 a4 g4 e4+ Kf4 d4 h5 e2 h6 e1B h7 e3 Bb2 d2 Qc1 d1Q Ra2 e2 Qc2 a3 Qc1 d3 Ra1 d2 Rh6 a2 Rh3 Nc6 b8B Qd3 Rh2 Ne5 Rh3 Nf3 Bc7 Bg7 f8B+ Ne7 Bd4+ Kb4 c5 Kb5 c6 Be6 Qc3 Q1c2 Bdb6 d1R Qe5+ Qc5 Qe3 Bc3 Kg3 Nc8 Qe5 Rg8 h8Q Qe3 Qh7 Rd5 Qd6 Qc4 Qe7 Nd2+ Kh4 e1B+ Bg3 Rb8 c7 Nd6 c8R N6e4 Ne2 g1B Rd8 Rb7 Rb8 Rdd7 Kh5 Nf3 Bgc7 Rd4 Ng3 Rd5+ Be5 Bed2 Nh1 Bf2 Ra8 Bfe1 Ra7 Neg5 Bec7 Rh8 Rb1 a1B Rd1 Bc1 Rd4 Bc1d2 Rf4 Ne4+ Rf5 Rg8 Rg5 Bh8 Bh6 Rd8 Bf8 Bg7 Bc5 R8d6 Bd4 Ra6 Bdb6 Be5 Rg6 Ra2 Bd4 Bac3 Bc5 Ba1 B5b6 Bec3+
3q4/1KN1R3/nPNN1p1r/q2BRP2/Q1b4q/3q4/Q3Q2n/b1k1qrqn w - - 0 1 legal: proof: b4 c5 e4 d5 a4 b5 axb5 cxb4 h4 dxe4 h5 a5 h6 a4 Ne2 a3 Bb2 axb2 Ng1 gxh6 Be2 h5 Bf1 h4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 e5+ Kc4 b3 d4 e3 g4 h3 f5 e4 d5 Ke5 b6 Kf4 Kb5 e2 c4 Ke3 g5 e1Q g6 h2 d6 h4 g7 h3 d7 Na6 Kc6 Nh6 g8Q Ng4 c5 Qa5 Qc2 Bg7 Nc3 b1Q Nf3 b2 Bg2 Qg1 Ne5 b1Q Qa4 Kd2 Nd5 e3 Nc7 e2 Bd5 Qd3 Re1 Ra7 Qe8 Rh6+ Qe6 Qgd4 Rhf1 h1N Rf4 h2 Re4 Qh4 d8Q Qg1 Qf8 Qd8 Qg8 Bf6 Qe7 Be6 Qee8 Ra8 Kb7 Bh8 Nc6 Ba1 Re5 f6 Bg2 Bc4 Bd5 Ng3 Qh5 h1Q Qe6 Nh2 Qf3 Qdd4 Qfb3 Qhe4 Qba2+ Qc2 Qe8 Qh4 Re4 Qf2 Ne5 Rc8 Ne6 Qg1 c6 Nh1 c7 Bd3 Re3 Qd7 Qe7 Re8 Nc6 Qd8 c8N Bb5 Nc7 Bc4 Qe4 Re6 Qf3 Re4 Qh5 Rf4 Re7 Rf1 Nd6 Bb3 Rb1 Bc4 Rb3 e1Q Qe2+ Kc1 Rbe3 Qcd2 R3e5 Qd3
8/3B1n1r/p1rrbQ2/Q2Nn2B/N1RPq1Qn/1bPk1n1n/Kb6/N5b1 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 h4 g5 e4 gxh4 Ba3 d6 axb5 Nd7 b6 Nb8 b5 Na6 Bb4 cxb4 Ra3 Nb8 Re3 exf4 e5 Qd7 e6 Qd8 Re5 dxe5 d4 Ke7 Kd2 Kd6 Kc1 Kd5 Kb2 Ke4 g4 f5 g5 h5 b7 b3 c3 h3 b6 h4 e7 a6 e8B h2 g6 h3 g7 f3 Qd2 f4 Ba4 f2 Ne2 f3 Bb5 Rh7 Bd7 Nh6 g8Q Qh4 Bg4 Ba3+ Ka1 b2+ Ka2 Nd7 b8Q Nf7 Qc1 Kd3 b7 e4 Qc7 e3 b8N Nde5 Nd2 b1R Qg7 Be6+ Nb3 Bb2 Nd7 Rc8 Qb7 Rc6 Ng3+ e2 Bh5 Qe4 Rg1 h1N Qcg5 h2 Bg2 e1B Nb8 f1B Q5f6 f2 Ne2 Ng3 Qc7 h1N Bh3 Nf5 Qa5 Nh4 Nd7 Bd2 Qgg5 Be3 Nb6 Bg2 Qgf5 f1N Na4 Nd2 Qg4 Ndf3 Rc1 Bg1 Nf4+ Ke3 Nd5+ Kd3 Rc2 Nf2 Na1 Re1 Rc1 Bf1 Rb1 Be2 Qgg7 Bd1 Bf5 Nh3 Qg4 Bc1 Rb4 Bb2 Rc4 Re2 Qg8 Rg2 Qc8 Rg8 Bfg4 Rd8 Bf5 Rdd6 Qg8 Bc8 Bd7 Bc2 Qg4 Bd1 Be8 Be6 Bd7 Bb3+
r1qB1R1B/B1QP2n1/3QbR1P/br4r1/N3kbb1/5n2/3Q1p2/1bbKq3 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 g3 h6 Bg2 h5 Bf3 Qg5 Nc3 Qd8 Ne4 Qd6 Nf2 gxf3 g4 Qd7 g5 Qd8 Ng4 hxg4 h4 Ke7 d4 Ke6 e4 a5 b4 f5 h5 c5 b6 f2+ Kd2 f1B b7 c3+ Ke1 g3 g6 f3 h6 a4 b5 g2 g7 a3 b6 c4 e5 Kd5 e6 f4 e7 c2 e8Q f2+ Kd2 f3 Qd7+ Ke4 d5 a2 d6 Ne7 g8Q Bd3 Nh3 g1Q Nf4 f1B Ke1 c3 Rh4 Nf5 Rb1 a1R Qdh7 Nc6 b8B Be6 b7 R1a5 Ba7 Rb5 b8B Qc8 Qg5 Ne5 Bc7 Rg8 Bb2 c1B Nd5+ Bf4 Nb6 c2 Na4 c1B Bd8 Bde2 d7 Qe3 Qd6 Bg2 Qhe7 Ng7 Qc7 Bgh3 Qed6 Bhg4 Bc3 Bd3+ Kd1 Be7 Rh3 f2+ Rf3 Bf8 Rb2 Bb1 Rc2 Be7 Ba1 Bf6 Rc6 Be7 Qd2 Bc5 Qe7 Bb4 Qed6 Ba5 Bc3 Ne8 Ra6 Rg5 Bcd4 Nc6 Bh8 Ne5 Rc6 Ng7 Qa3 Bea2 Rf6 Bae6 Qad6 Bgf5 Rh3 Nf3 Rh5 Bg4 Rf8 Rg6 Rhf5 Rg5 R5f6 Qe1+
q2n1QnR/1bp2Bn1/n7/3b1qQ1/N2rN3/Q2P3r/2n2PRr/Kn2Nk2 w - - 0 1 legal: proof: g4 d5 b4 a5 c4 axb4 e3 dxc4 g5 e6 g6 hxg6 Qh5 g5 Na3 Bd6 Nb1 Be5 Qd1 Bf4 Bb2 f6 Be5 fxe5 exf4 e4 a4 Kf7 h4 Kg6 d3 Kf5 Kd2 b5 Kc1 c3 a5 b3 h5 e5 h6 g4 h7 g5 a6 e3 a7 b2+ Kc2 e2 Qe1 e4 Ra6 g3 Na3 Kg4 Kb1 b4 f5 e3 f6 g2 f7 c2+ Ka2 b1B+ Ka1 c1N f8Q b3 Nc4 Ba2 Na3 Bb7 Ra5 Nc6 Nh3 g1N Rd5 Nf3 Nc2 Nh4 Rd7 Nf5 Qc3 Kf3 Qfb4 e1N Qcc5 e2 Rd6 g4 Rg6 g3 Qbc3 g2 Q3b4 g1R Rf6 Rg2 Rh6 Ng7 Qbb6 Rh2 Qbb5 Qg5 Qa3 Qf5 Rg1 Rd8 a8N Rd4 Nb6 Nd8 Nf4 Rh3 Ne6 Rh2 Nc5 Rh3 Ne3 Rh2 Bh3 Nc2+ Kb2 e1Q Rg2 Ke2 Ne4 Qf1 Na4 Qh1 Bg4+ Ke1 Bh5 Rh3 Bf7 Rh2 Ng4 Kf1 Ne5 Rh3 Nf3 Rh2 Kc3 b2 Ne1 b1N+ Kb2 Nb3 Qe5 Nc5 Qf4 Nf6 Qg5 Bad5 Rh5 Na6 Rh4 Re8 h8Q Ng8 Qhh6 Re5 Qhd6 Re6 Rh8 Reh6 Qf8 R6h3 Rg4 Qhf3 Rg2 Qc8 Rh4 Qa8 Rh8 Bdc6 Ka2 Qg4 Kb2 Qf5 Ka2 Bd5+ Kb2 Ne3 Ka1 Nc2+
qn3r1n/N1B3r1/bn3n2/1pB2B2/4Rrbk/K2QQ3/N1Q2P1P/q1rn4 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 e5 b4 a5 e3 axb4 g5 e4 Ra3 Bd6 Rc3 Bf4 exf4 h6 Rc6 hxg5 Rg6 g4 Re6+ fxe6 Kd2 Ke7 c4 Kf6 Kc2 b5 Kb3 d5 a5 g5 a6 e3 a7 e2 c5 e1R c6 e5 c7 e4 f5 d3 Bb2+ d4 Nd2 g3 Bc1 e3 Qe2 g2 Qf3 e2 Ba3 g4 Qf4 g3 Qe5+ Kg5 f6+ Kh4 f7 Ba6 c8Q Rc1 f8B e1N Bg7 Nf3 Qb7 Nf6 Qe8 Ne5 Ka2 b3+ Kb2 Ng6 Nc4 d2 Qc8 d1B Ne2 g1Q Nd6 d3 Qc2 g2 Nc8 d2 Nc3 Rf8 Bd3 Nh8 Bc5 Bg4 Bf5 d1N+ Ka3 b2 Qe3 Qf1 Na2 g1R Bh6 Qd5 Bf4 b1N+ Kb4 Na3 Bc7 Nc4 Qed3 Nb6 Ka3 Qh3 Qe3 Rg3 Re1 Qf1 Qed3 Rf3 Re4 Rf4 Qe3 Rf7 Qed3 Rg7 Qe3 Nc6 Qcd3 Rb8 a8Q Qg8 Na7 Rf8 Qc2 Nb8 Qd5 Qe1 Qdd3 Qc3+ Qb3 Qa1 Qb2 Qd5 Qbc2 Qa8
2B5/7q/bnkNKQ1r/P4nqQ/2PB2Q1/2br2b1/qR1pq1b1/1Bq1N3 w - - 0 1 legal: proof: f4 a5 b4 axb4 d4 c5 e4 cxd4 a4 f5 g4 g5 Ra3 h6 Rg3 h5 exf5 gxf4 g5 Ra5 Rg2 Ra8 Rg4 hxg4 Kf2 b5 h4 d5 c4 Kd7 f6 e5 a5 b3 f7 e4 h5 f3 Kg3 f2 Kf4 b2 Ke5 g3 g6 d3 h6 d4 g7 e3 h7 b4 Be2 f1B Nf3 d2 Rh3 b3 Nh4 g2 Kf5 g1Q Qe1 d1Q Qf2 d3 Qh2 d2 Nf3 Ba6 Na3 b1Q+ Bd3 b2 Rh4 e2 Qh3 e1B Nb5 Bb4 f8Q Bg2 Rh5 Kc6 Nd6 Nh6+ Ke6 Bc3 g8B Qa2 Qf6 b1Q Qg4 Nd7 Bb2 Nb6 Rb5 Bg3 Ne1 Nf5 Ba1 Qh1 Rb2 Qbc1 Bb1 Ra7 Bf7 Rd7 Bh5 Qg8+ Bf7 Qg5 Bh5 Rhd8 h8Q Rh7 Bf7 Rh6 Bg6 Ne3 Bgf5 Qhh5 Qh7 Qhg6 Qf7 Qh7 Qfh5 Qe2 Bfe4+ Kc5 Bb7 Rd7 Bc8 Kc6 Ne4 Rd3 Nd6 Bce5 Rc2 Nf5 Bd4 Kc7 Rb2 Kc6 Bf2 Bc3+ Be3 Qf1 Bd4 Qe2+
4r2b/5KQ1/1r2rp2/2RQ2q1/N3Nk1r/P4b1P/1Bbn1Q1R/Rb1rq1n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 e4 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 b5+ Kb3 c5 d3 g5 d6 c4+ Kb2 b3 Kc3 g4 d7 b4+ Kd2 b2 Ke3 b3 a3 c3 h3 c2 Rh2 Qg5+ Ke2 Nc6 d8Q Nf6 Nc3 b1B Nd5 b2 Nb6 Bb7 Qd7 Rh4 Qd2 Bg7 Qe3 Bh8 Na4 Re8 Qf2 Re6 Qe7 Ba8 Qf8 Re8 Qg7 Nd4+ Ke1 Nf3+ Ke2 Nd2 Nf3+ Kf4 e5 g1R e6 g2 e7 g3 d4 Nh7 Kd3 f6 d5 Rd1 Kd4 g1Q d6 g2 d7 Qe1 d8R g1R Rc8 Bb7 Rc5 Rg3 Ne5+ Bf3 Nc4 Rgg4 Nd6 Rg2 Qf1 Re2 Qf2 Re6 Ne4 Ba2 Qe2 b1B Bb2 c1R Qg2 Bb3 Qf2 Rb8 e8Q Rbb6 Qeg8 Re8 Rc7 Rcc6 Qd5 Rce6 Rc6 B3c2 Kc5 R6e7 Kd6 Re5 Kd7 R5e6 Rc5 Nf8+ Kc7 Ng6 Kd7 Ne5+ Kc7 Nd3 Kd7 Nc1 Qf7 Reb8 Qe7 Ne2 Qg7 Rec6 Ke7 Ng1 Kf7 Re8 Ng3 Rd6 Ne4 Rde6
1QK2BbN/q1qrb2k/1P1b1r1r/3PNbbR/n6R/1R3Q2/Qpr5/n7 w - - 0 1 illegal: No possible last move, all moves rejected
8/3R3Q/1prP3B/nq1NQR1b/rb6/1Pnn4/2qnn1KR/qqBBk3 w - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 bxa4 Na3 e5 Nc4 exf4 Nb6 axb6 Kf2 Kd7 e4 Kd6 g4 Ke5 d3 Kd4 e5 c5 g5 h5 b3 Kc3 g6 f5 e6 f3 e7 a3 e8Q c4 d4 a2 g7 f4 d6 h3 d5 h2 d7 h4 Qe4 h3 Qg6 Bb4 d6 Ra4 Qe4 Nf6 g8R Qc7 d8B Nd5 Rb1 a1Q Qde2 Nc6 Bg5 Na5 Bh4 Bg4 Qd1 Bh5 Rg5 Rc8 Rb2 Qc5+ Be3 Rc6 Be2 Qb5 Kf1 f2 Qg2 Qc1 Bc5 Qc2 Qa1 Kd2 Qe4 c3 Ra2 Ne7 Bc4 Nd5 Qb2 Kd1 Ne2 Kd2 Rhg1 h1N Qa1 h2 Rf5 Ng3+ Kg2 f1N Bg5 h1N Qb1 Nf2 Bh6 Nd3 Qb2 Ke1 Be3 Qb1 Bc1 c2 Nc3+ Ne2 Qe7 Qa1 Qh7 Qb1 Rh1 Qa1 Rh2 f3+ Kh3 f2 Kg2 Nd2 Ra3 Nf6 Nd5 Nfe4 Qe5 N4c3 Ra2 Nc5 Bd3 Qb1 Be4 Nd3 Bf3 Qa1 Ba3 c1Q Bg4 Qc2 Bc1 Nde4 Bf3 N2g3 Bd1 Nge2 Rf7 Nd2 Rd7 Bg6 Rh5 Be8 Rg5 Bh5 Rf5 f1Q+ Kh2 Qcb2 Bg7 Ndb1 Bg5 Qf4+ Kh3 Qfc1 Be3 Nd4 Bgh6 Qbd2 Rc2 Qcb2 Kg3 Qdc1 Rg2 Qcc2 Rh2 Nde2+ Kg2 Qba2 Bc1 Nd2 Rf6 Q1b1 Rf5 Qaa1
2Nnr3/1NqPN1n1/1Prb1p1k/6Rb/b5b1/B2K3q/QQQ3Bq/b1q5 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Ra3 exf4 Rb3 b6 Rb4 axb4 a5 Nf6 axb6 Ng8 e4 c5 Ke2 h5 d4 f3+ Kd2 c3+ Kd3 b3 g4 f2 d5 h3 d6 b2 e5 c2 e6 h4 g5 f6 e7 Kf7 e8Q+ Kg7 b7 c4+ Kd2 c3+ Ke3 h2 b6 h3 g6 Bg4 d7 Kh6 g7 Ne7 g8Q Nbc6 b8N Qc7 Qb3 Nd8 Nd2 b1B Qef7 Nf5+ Kd3 Bd6 Qb5 Re8 Bb2 c1B+ Qc2 Ng7 Nc6 Rc8 Bg2 f1B+ Ne2 Ba2 Na7 Bb3 Qfd5 Ba4 Rg1 h1Q Nb3 h2 Ba3 Bb2 Na5 Ba1 Nb7 Bh5 Qbb1 Bg4 Qcb2 c2 Qda2 c1Q Q1c2 Bh5 Be4 Bg2 Nd4 Bh3 Rg5 B3g4 Ndc6 Qg2 Ne7 h1Q Bc6 Qgh2 Bg2 Qh3+ Kd4 Q1h2 Ke4 Ra8 Nc8 Ra5 Kd4 Rc5 Ke4 Rc6 Kd4 Qh4 Kd3 Q4h3+
b3q2R/1n6/2r1k3/4br1p/NB2P1Qq/Bnq3P1/1bK2N2/bQ1rQq1N w - - 0 1 illegal: No possible last move, all moves rejected
r1n1Qb2/4qK1N/1nR3nN/2RbpQ2/2b1Pb1P/1q1N4/2k2q2/2q2QBr w - - 0 1 illegal: No possible last move
Rr1R2Nq/4QR2/r3qqP1/5b2/1NQbb3/r5P1/1bKQp1k1/Bn3q1n w - - 0 1 legal: proof: d4 a5 e4 f5 b4 axb4 g3 fxe4 d5 h5 d6 h4 Be2 h3 Bg4 cxd6 Bf3 d5 Bg2 hxg2 f4 g5 fxg5 d4 Kd2 Kf7 c4 Kg6 a4 Kf5 h4 b5 a5 d5 g6 e5 a6 e3+ Kd3 e4+ Kc2 e2 c5 Kg4 a7 b3+ Kd2 e3+ Kd3 b4 h5 b2 h6 b3 h7 Nf6 c6 Na6 c7 Bg7 Rh2 Ne4 Nh3 Kf3 Ra4 g1B Qc2 e1Q Rh1 Nc3 Qd1+ Kg2 Ra1 Qf6 Na3 b1B+ Nc2 b2 Ng5 Bf5+ Ne4 Rhb8 c8R e2 h8Q Qf1 Ra2 Nb4+ Kd2 d3 Nf2 d4 Na3 Bc2 Qh6 b1Q Ne4 Qb3 Qg5 Qbe6 Bb2 Nb1+ Kc1 Bf2 Ba1 d2+ Kb2 Bg1 Qc1 d1R Rd8 Rd3 Qgd2 Bf2 Rh4 Qh1 Rf4 Qh8 Rf3 Qfe7 Qf4 Rc3 Qh6 d3 Rd7 d2 Rd4 d1Q Qhd2 Bg4 Rf7 Bf5 Rd8 Qf1 Nf6 Bce4 Ng8 Be5 Nc2 Q7f6 Qd7 Bc5 Qe7 Bg1 Qd2 Rf3+ Nd4 Nd3+ Kc2 Be3 Nc6 Bb2 Nb4 Bed4 Ra4 Nf2+ Nd3 Rb3 Ra5 Rab8 a8Q Nh1 Qc6 Ra3 Ra8 Ra6 Qc4 Bb6 Kb3 Be3+ Nb4 Bed4+ Qc3 Rd3 Kc2 Bf2 Qe1 Bfd4 Qd2 Rda3+
3Rr3/b6n/1rQPbRQ1/4QPq1/1kpK3q/1r2R3/2qb1n1N/2bNB1r1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Bd3 g6 Bf1 g5 b4 gxh4 b6 a6 b7 Kf7 b5 Ke8 b6 Ra7 Be2 Qd5 Bg4 Ra8 Be6 Qd8 Bd7+ Kf7 Bb5 axb5 Qe2 Ke8 Qf3 Qd5 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 d4 h5 g4 e5 f4 b4 g5 Kb5 d5 c5 g6 c3 g7 c4 f5 b3 Ra3 c2 Nd2 h3 Ra7 h4 Ba3 c1B Qf3 h2 Qf2 b2 Qg2 b1R Qg4 h3 Qg6 Nf6 g8R Nbd7 b8Q Ng4+ Ke2 e3 b7 e4 Qe6 Rh6 Ndf3 Bc5 Nd2 Nf8 Qf7 Qg5 Qg7 Be6 Qd6 Nf2 Ra6 Ba7 Qg6 Re8 Ndf3 Rb3 Bb4 Nh7 Rc6 Ka4 Be1 Kb5 b8Q+ Ka4 Qe5 Ka3 Qbc7 Ka4 Nd2 Kb4 Qgf7 Rf6 Ngf3 Rh6 Rf1 h1R Qg6 h2 Rf8 Rg1 Nb1+ Kb5 Rf6 h1Q Nc3+ Kb4 Rd6 Qh2 Rd8 Qhg2 Qc6 Qh2 Bd2 Qhg2 Ke1 e2 Nh2 Qf3 Nd1+ Qc3 Qg7 Rg6 Qf7 Rh6 Qg6 Rh3 Qa8 Rh6 Rf8 Nh1 Qg8 Bf7 Qb7+ Rb6 d6 Be6 Rf6 Nf2 Qgg7 Ka3 Qc6 Qc2 Qg6 Nh3 Bf4 Kb4 Bg3 Nf4 Kf2 e3+ Kf3 e1B Rf2 Bed2 Re2 Nd3 Re1 e2 Ke4 Bc8 Kd4 Be6 Rf1 e1Q Rf3 Qf2+ Re3 Qff4+ Qce4 Qfg4 Be1 Qh3 Q4d5 Nf2 Qc6 Qhh4+
3n2Rn/RqnKp1Q1/2Q3q1/3q2P1/1b2R1N1/4n1rP/Qr1Bq1Nr/b2k4 w - - 0 1 legal: proof: e4 c5 f4 a5 d4 cxd4 b4 axb4 f5 d3 f6 gxf6 Na3 f5 Nb1 f4 g4 h5 g5 d5 Be2 d4 Bf3 Be6 Bg4 Bd5 exd5 hxg4 Kf2 Kd7 a4 Kd6 c4 Ke5 d6 Ke4 a5 b5 c5 f5 d7 b3 a6 d2 a7 Kd3 c6 b2 c7 f3 Kg3 b4 Kf4 g3 Ke5 b3 Ke6 g2 c8Q f4 Ra3 f2 Qb7 f1Q Qg4 Kc2 Qd5 d1R Ra2 d3 Ra1 d2 Qd4 f3 Ra6 f2 Qe2 Bg7 Ra4 Nh6 Ra5 Nc6 Qb6 Nf7 Qh5 Rb8 a8R Qe2+ Qe3 f1N Nh3 g1B Nc3 b1Q Ra3 b2 Qe5 Ne3 R3a7 Nd5 Qf3 Bc5 Re1 Bb4 Ne4 Rh7 Qd4 Nh8 Nf4 Rh5 Ng2 Nc7+ Kf5 Rh3 Nf6 Rg3 h3 Qg8 d8Q Qd5+ Qe5 Rb7 Qg8 Nd8 Ng4 Bf6 Rf1 Re1 Rh1 d1N Bd2 Rf1 Qe6 Rf2 Re1 Bg7 Qa6 Rb8 Qa2 Rb6 Nh4 Rh2 Ng2 Ne3+ Kf4 Nc6 Rg8 Nd8 Qf6 Qa5 Qb7 Qd5 Qh6 Bf6 Qg7 Bfc3 Qc6 Rb7 Rf1 Rb5 Rf3 Kd1 Rf2 Qg6 Rf3 Nf5 Re3 b1Q Re5 Ba1 Re4 Ba5 Qb6 Rb2 Qc6 Qb3 Ke5 Ne3 Kd4 Bc3+ Kc5 Bb4+ Kb6 Nde6 Kb7 Nd8+ Kc8 Qbc4 Kd7 Qb5 Ra6 Qb7 Ra7 Qbd3+ Qd6 Qdb5+ Qc6 Qd5+
kq1r2K1/1pbn2Nn/1q2P2B/BQ5N/P2qQ1qB/7R/3n1b2/1Nnb2r1 w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 exf4 a4 d5 cxd5 h5 Bh3 f3 g5 g6 Bg4 hxg4 Ra3 Bc5 Rc3 Bf8 Rc6 Rh6 Rf6 Rh8 Rf5 gxf5 Bb2 f4 Ba3 Qe7 Bc1 Qd8 Kf2 Kd7 h4 f5 e4 c5 d4 Kc7 g6 g3+ Kf1 f2 Ke2 f1N Kf3 b3 g7 g2 e5 c4 h5 b2 h6 c3 h7 c2 Qe2 Bd6 Rh3 Nf6 g8Q Nbd7 Qe3 Kb8 Ne2 g1B Qe4 Bf2 Ng3 Bc7 Qe8 Rg8 h8B Nh7 Nh5 Rg1 d6 Qg5 Be3 c1N d5 Qg8 Bf6 Qg6 Na3 b1Q Bh4 Qb6 Nb1 Ka7 Bd2 Rb8 Ba5 Ka8 Bg5 Na2 Bh6 Nd2+ Ke2 f3+ Kd3 Nc1+ Kc3 Nc5 d7 f4 d8N Bg4 d6 Nd7 Ne6 Rd8 Neg7 Qg5 e6 Qf5 Qf7 Qd5 Qff5 Qdd4+ Kc2 Bh4 Qb5 f2 Qed5 f1Q Qe4 Qdc4+ Kb2 f3 Ka3 Qd5 Kb4 f2 Kc3 Qg2 Kb4 Ne5 d7 f1Q Kc3 Bf2 Kb4 Rh8 d8B Nd7 Bh4 Bd1 Kc3 Qh2 Kb4 Qfg2 Kc3 Nf3 Kb4 Qd2+ Kc4 Qdf4 Kd5 Nd2 Qf3 Qgg4 Qfe2 Bd8 Qe5 Qbe3 Kd6 Bb6 Ke7 Rd8 Qd4 Qc7 Qdd3 Qed4 Kf7 Qcc5 Qe4 Qb8 Qb4 Bc7 Qb5 Ndf8 Kg8 Qcd6 Qg5 Q6b6 Qb5 Nd7+
3b1rQ1/Ppq1B3/4n1Q1/1B2rN2/r1Q3rR/q2qnq1b/3K1nP1/B5Nk w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Ra2 exf4 Ra3 bxa3 d4 Kd7 e4 Kd6 a5 c5 a6 f5 a7 h5 Be2 h3 Qb3 a2 Bb5 a1R Ba6 h2 Ba3 h4 Qb4 f3 Qb5 h3 Qc4 f2+ Kd1 f1Q+ Kd2 f4 Qb5 f3 Bb2 f2 Qc4 Ra4 Kc3 Qc7 Bb5 Nc6 Qd3 c4 Nf3 Nf6 Nbd2 Rg8 Ba6 Ng4 Qc2 Be7 Ng5 Bd8 Ndf3 Ne3 Ne6 Rg4 Ng7 Be6 Kd2 Qd3+ Kc1 c3 Bb5 Rc8 Ng1 Ra8 Qb3 c2 Qc4 Bc8 Ba1 f1Q+ Kb2 Qf3 Kc1 Qa3+ Kd2 c1R Qb3 Rc5 e5+ Kd7 e6+ Kd6 e7 Be6 e8Q Bd7 Ne2 Be6 Rg1 h1N Qg6 h2 Qc4 Nf2 Rd1 h1Q Ng1 Qh7 Nf5+ Kd7 d6 Re5 d5 Rb8 Ba6 Nd4 Rf1 Bh4 Rb1 Rf8 Rb4 Bd8 Qh6 Ke8 d7+ Kf7 d6 Qg6 Qh5 Kf6 Bb5 Qh7 Qf7+ Kg5 Qg8+ Kf4 Qg6 Bg5 d8Q Be7 Ng7 Kg3 d7 Kh2 Nf5 Kh1 Qde8 Qhh3 d8B Bd7 Qef7 Ne6 Qfg8 Bg5 Be7 Qhg3 Bc5 Bd8 Bd6 Qe4 Bc5 Qgf3 Be7 Qed3+ Ke1 Nc5 Qc3 Rf4 Nh4 Bh3 Nf5 Qb1+ Kd2 Rh4 Rg4 Ne6 Qc4 Qbb3 Rg3 Rhe4 Rg4 Rf4 Rh4 Rg4 Nd6 Qb1 Nf5 Qbd3+
nQ2BbQ1/1Pn4K/R1N3b1/1r2BP2/r2N2B1/3qbQ2/1krbbp1b/1r6 w - - 0 1 legal: proof: f4 c5 e4 h5 b4 f5 d4 cxd4 a4 b5 Ra3 fxe4 g4 hxg4 Rf3 exf3 axb5 Ba6 Nc3 Bb7 Nb1 Bc8 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kd3 g5 h4 a5 c4 e5 c5 g3 c6 g4 c7 a4 h5 a3 b6 e4+ Kd2 a2 h6 a1R b5 d3 Ke3 g2 b7 d4+ Kf2 e3+ Kg3 d2 Kh4 g3 Kh5 d3 h7 e2 b6 e1B Be2 R1a5+ Kh4 Bf5 Kh5 Bg6+ Kh4 Ne7 c8B Na6 b8Q Rb5 f5 Nc7 b7 Ke5 Kg5 Kd4 Rh6 Ned5+ Kg4 Nb6 Kf4 Ra4 Na3 Kc3+ Nc4 Nba8 Bd7 Rg8 h8Q+ Rg7 Nh3 g1B Qg8 g2 Ng5 Bh2+ Kg4 g1B Be8 Rf7 Ne6 Be3 Nd4 f2 Na5 Rf6 Ba3 Rc6 Bd6 Kb2 Be5 Rc2 Nc6 Qd7 Bf3 Qd5 Qe2 d1B Kh4 d2 Bg4 Qb3 Qf3 Qc3 Bg3 Be2 Be5 Bh7 Kh5 d1R Ne7 Qa3 Ra6 Qd3 Nec6 Rb1 Qe6 Bg8 Kg6 Bf7+ Kh7 B1d2 Qed5 Bh5 Qg8 Bg6+
1B1qq3/1Rn3Nr/rr1p4/4P1Q1/Q1r1qP1b/1KNQ4/n6N/2krq1qB w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 e3 exf4 Kd2 f5 Ne2 f3 Ng1 f4 Bc4 f2 Bd3 f1R a4 h5 Be2 f3 Ba6 f2 Bd3 b6 Bb5 Bb7 Bd3 Bf3 gxf3 Rh7 Ra3 Qh4 Rc3 Qe7 Rc5 Qd8 Rg5 Rh8 Rg4 hxg4 c4 Ke7 Kc2 Kf6 h4 Ke5 a5 g5 h5 d6 c5 b3+ Kb2 b5 e4 b4 h6 g3 h7 g4 a6 g2 c6 g3 c7 Nc6 c8Q Nf6 a7 Nd5 Ba6 d3 f4+ Kd4 e5 d2 Rh6 Ke3 Nh3 g1Q Qf5 g2 Be2 Nc7 Re6 Be7 Rg6 Bh4 Qg5 Re1 Rg7 f1Q Bh5 Qb5 Nf2 Qh1 Nc3 g1Q Bg4 Qe4 Bf3 Rc8 a8N Rf1 Ka1 b2+ Ka2 b1R Qa4 b3+ Ka3 b2 Ng4+ Kd3 Bh1 d1R Nh2 Nb4 Kb3 Qbe8 Be3 Na2 Ba7 Kd2 Bb8 Kc1 Rf7 Rf3 Rd7 Rh3 Re7 Rf8 h8Q Rf7 Qhh5 Rh7 Qf3 Ra1 Qd3 b1Q+ Ka3 Qee1 Rg7 Qc2 Rd7 Qce2 Kb3 Qe4 Rf7 Ne6 Ra7 Rc4 Nc7 Rf3 Rb7 Rh3 N7d5 Nc7 Ne7 Re3 Nf5 Re2 Ka3 Rb2 Ng7 Rb5 Qdg3 Rb6 Qd3 Nb4+ Kb3 Ra2 Qd7 Raa6 Qa4 Na2+
b1Q1RQ2/1rPp2r1/k2rqB1q/1N2n1r1/8/K2bb1BQ/1P3rqR/4qB2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 a5 f3 a6 bxa6 Qd2 a5 Qd1 a4 Na3 h5 Rb1 f5 Ra1 f4 Nc4 Nc6 Ne3 Nce7 Qd3 Bb7 Qd1 Nf5 gxf5 Bc8 Ng4 hxg4 Kd2 g5 h4 a5 e4 f2 c4 g3 Kc2 a3 Kb3 g2 c5 f3 h5 a4+ Ka2 g4 e5 d3 e6 g3 h6 d2 e7 Rh7 f6 Ra7 c6 Rg7 h7 Rb7 h8Q Nh6 Rh4 Ng4 Qh7 Qb6 Rh1 Ne5 Nh3 g1Q Ba6 f1R Bc4 f2 Nf4 g2 Qg4 d1R Qhh4 Rd6 Kb1 a2+ Kc2 a3 Qgh3 Qa6 Rb1 a1Q Ne2 a2 Qh6 Qh2 Bb5 g1R Kb3 R1g5 Bf4 Qg2 Re1 Qc1 Nd4 a1Q Rh2 Q1a5 Re4 Qae1 Bg3 Qb6 Qh8 Qc4+ Ka3 Qe6 Ne2 Qe3+ Nc3 Qf4 Bc4 Qh4 Nb5 Qh6 Rh4 Rh1 Rf4 f1B Re4 Bd3 c7 Rf1 Re3 Rf2 Re2 Rb8 Re4 Bb7 Re3 Ba8 Re4 Bb1 Bf1 Rb7 Re2 Bd3 Re3 Kf7 Re2 Kg6 f7 Kf6 e8Q Be7 Qb8 Bd8 Qc8 Ke7 Nc3 Rd5 Re4 Kd6 f8B+ Kc6 Nb5 Kb6 Be7 Rd6 Qf8 Ka6 Re2 Rg4 Beh4 Bg5 Re4 Be3 Bf6 Nf7 Re5 R4g5 Re4 Qe8 Re6 Ne5 Re7 Qf7 Re8 Qe6
Q1b1n2N/P1q4b/3R1BrP/r1k1N1Q1/1q6/1pK1bq2/1N4Qq/4Rbbr w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 Nh3 h5 Qd3 f5 Qd1 f3 Ng1 f4 Bh3 Nc6 Kf2 Nce7 Ke1 Nf5 gxf5 Bc5 Bg4 hxg4 Qd2 Be7 Qd1 Bf8 Kd2 Ke7 e4 Kd6 h4 g5 a4 b5 c4 d3 h5 f2 e5+ Kc5 f6 f1Q a5 d5 f7 d4 e6 g3 a6 b3 h6 g2 e7 f3 e8Q f2 Qde1 b4 Q1e4 b2 Nf3 g1Q Qe3 b3 Qe2 g4 Q2e6 g3 Qf6 g2 Na3 b1B Ne5 Qh2 Qg5 g1B Bb2 Nf6 Qd7 Qfg2 Qh3 Qg4 Qg2 f1B Bc3 Be7 f8N Ne8 Nfg6 Rg8 Nh8 Rg6 Bb2 Bc2 Re1 Qc7 Ba1 Qf3 Bc3 Qfb7 Rd1 Qb4 a7 Rb8 Re1 Rb5 Rd1 Ra5 Re1 Qh5 Rh3 Bd8 Rf3 Be7 Rf6 Qh2 Rd6 Bb1 Nc2 Bf6 Ne3 Bd8 Nd1 Bc2 Kc1 d2+ Kb2 d3 Nc6+ Kb6 c5+ Kb5 Be5 Bf6 Bc3 Bfd4 Ne5 Bde3 c6 Bb1 Nef7+ Kb6 Bf6 Bc2 Ne5 Kc5 Nc3 d1Q Na4+ Kb5 Qh3 d2 Qhg2 Qd7 c7 Qf3 Bd8 d1R Bf6 Ba6 c8Q Qc7 Qa8 Bc8 Nb6 Bcd3 Nbc4 Kc5 Bd8 Bfe2 Qf1 Bgf2 Qfg2 Rf6 Rg1 Bh7 Rf1 Rg6 Bf6 Rd4 Rc1 Rd1 Ra1 Rh1 Re1 Qbb6 Kc3 Bf1 Nb2 Bg1 Qe2 Qbb8 Qeg2 Qb4#
n3R2b/kq1P2B1/B5bQ/K1b3Pr/r1R1N2Q/5b1p/brRr1b2/2q4B w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 gxf4 b4 e5 g5 a5 Nc3 axb4 Na4 Nc6 Nb6 Nce7 h5 Ng6 Nd5 f3 Nf4 exf4 hxg6 Kd7 Rh3 Ke7 Rh1 Ke8 e4 Kd7 a4 Kc6 d4 Kb6 Kd2 f5 e5 c5 g7 h5 d5 h4 d6 c3+ Kd3 c4+ Kd4 f2 a5+ Ka7 Kc5 b5 a6 c2 e6 h3 e7 f3 e8B c3 Qd2 b3 Kb4 b2 Ra2 b1B Qd3 f4 Qd4+ Qb6 Qd3 Bg4 Qh7 Nf6 g8Q+ Nd7 Bf7 Rd8 Qgg6 Qb7 Ra5 Nb6 Ba2 Na8 Be2 f1Q Qgg7 f2 Bec4 f3 Qf5 Rh5 Ba3 c1B Qge5 c2 Qe2 Be3 Qe4 c1B Qd1 Bb2 Ne2 Bh8 Rh2 Rb8 Qe6 Bg6 Qa4 Qc1 Ng3 f1R Bb2 f2 Bg7 Bf3 Ne4 Rd1 Qf6 f1R Rc2 Bb6 Bd3 Rfe1 Bd5 Rd2 Be2 Bf2 Bf1 Bf7 Qh6 Bg6 Bd3 Ree2 Bc6 Be7 Rc4 Bf6 d7 B6d4 Bd5 Kb6 a7 Bc5+ Kb3 b4 Rc2 Bh1 Ba6 Bf3 Kc4 b3 Rb5+ Kc7 Rb4 b2 Kc3 b1B Rc4 Kb6 Kb3 Nc7 a8R Ba2+ Kc3 Re8 Rc8 Na8 Rd8 Rf8 Re8 Rf4 Bc6 Ka7 Bd5 Bb6 Kb4 Bbc5+ Ka5 Rfh4 R2c3 Rb2 Rc2 Rd2 Ng3 Be2 Bh1 Rhd4 Ne4 Bf3 R4c3 Rdb4 Rc4 Bd1 Qa3 Be2 Qg3 Bf3 Qh4 Ra4+
1r1bbB2/2r1PRqn/qb2pPp1/3n1Qr1/5N2/1Kq5/N1n3R1/R2QN2k w - - 0 1 legal: proof: e4 h5 a4 b5 axb5 c5 d4 cxd4 g4 hxg4 e5 e6 Bg2 d3 Bd5 exd5 e6 d4 Qe2 Ke7 Qe3 Kf6 e7 Kg6 Qe6+ fxe6 Nh3 Kf6 Ng1 Kf7 Kd1 Kg6 f4 Kh5 b4 Kh4 c4 a5 b6 d5 b7 g6 h3 Kg3 b5 Kg2 b6 g3 h4 a4 f5 d2 Kc2 d1N c5 d3+ Kd2 d4 h5 a3 c6 a2 h6 Ra5 h7 Na6 b8Q Nc3 c7 Qd6 b7 Bg7 Rh6 Nf6 Qa8 Nb4 Rh1 Qa6 Nf3 Bd7 b8R Nc2 Rf8 Rc5 Rf7 Rb8 c8N Be8 h8Q Rc6 Qf8 Nh7 Nb6 Be5 Qg7 Bc7 Nd5 Bd8 Qf6 Rcc8 Re1 Rc7 Re2+ Kh1 Ne1 g2 Qg5 g1B Rg2 Bf2 Bb2 Bg1 Qb7 Bf2 Nf4 Nd5 Nc3 Qb5 Rb1 a1Q Nh5 Qba6 Nf4 Q1a3 Ra1 Qc5 Kc1 Bg1 Re2 d2+ Kb1 d3 Na2 Qcc4 Bg7 d1Q+ Kb2 d2 Bf8 Bc5 Qb4 Bb6 Qa3 Qc6 Qd3 Qc5 Rf2 Qf3 Re2 Qd4+ Kb3 Qg7 f6 Qh3 Qf5 d1R Nf3 Rg1 Ne1 Rg5 Rg2 Qg4 Qd1 Qg3+ Nfd3 Qe5 Nf4 Qc3+
3r2R1/5n1p/Bn1b2b1/Q1n1qQ2/N6K/BQn1Pr2/B1p1rnPR/3bk3 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 gxh4 c4 e5 Na3 exf4 axb5 cxb4 c5 d5 Nc4 dxc4 Kf2 Kd7 d4 Ke6 e3 Kd5 b6 Ke4 b7 a5 c6 f5 d5 a4 c7 h3 d6 a3 d7 h2 Nh3 f3 Kg3 f2 Bd2 b3 Rb1 c3 Bc1 b2 Qh5 a2 Bd2 a1N Rc1 b1N Nf4 Qg5+ Qg4 Nh6 d8Q Nb3 Rc2 Nf7 Bb5 f1B Be2 Bd6 Qf8 Nc5 Ra2 Nbd7 b8Q Nb6 Bb5 Bd3 Rc2 Ra2 Qg7 Rd8 Bc1 Bd7 Ba6 Ba4 Rd2 Bd1 c8B Rc2 Rf2 Re2 Ba3 c2 Qa1 Nc3 Be6 Qg7 Kh3 Qe5 Nd5+ f4 Qg5 f3 Kh4 Rc8 Rff1 f2 Qa2 Rd8 Qb3 Bc4 Qa7 Kd3 Qf5+ Kd2 Qc7 Bd3 Qa7 Nb5 Nc3 Be4 Na4 Nc3 Bac8 Bd3 Qa5 Be4 Ba6 Bd3 Rfg1 f1R Bd5 Rf3 Rf1 Rg3 Rf4 Rf3 Rg4 Be4 Rg8 Bd3 Rf1 h1N Rg1 Nf2 Rh1 Be4 Rh2 Bd3 Qbb5 Ke1 Ba2 Be4 Qb3 Bd3 Qg4 Bg6 Qd7 Nce4 Qf5 Nc5
3Qb2n/1KQ1nNbP/3N4/B3q1b1/2b1q1pP/1B3pbB/RN5r/2r3kq w - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 f4 dxc4 g4 h5 gxh5 e5 Ra2 exf4 Ra3 bxa3 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 h3 f5+ Ke5 g5 e4 b5 a5 f3 d3 g4 h6 b4 h7 b3 a6 f4 a7 c3 Ne2 b2 Bd2 c2 Ng3 c1Q Nh5 a2 Nc3 b1Q Qe2 a1B Qd1 f2 Qe2 f3 Ng3 Bd7 Rh2 Be8 Nf5 Nh6 Nd6 Qg5+ Ke6 Kd4 h4 c5 e5 c4 Nf7 Bg7 Kd6 Nc6 Kc7 Ne7 Bh3 f1B Nd1 c3 e6 c2 Nb2 Qe5+ Kb7 Qd1 Qe1 c1B Ba5 Bg5 Qg3 Ke3 d4 Qbe4+ d5 Bc4 Rf2 Rc8 a8B Qh1 Rc2 Rc6 d6 Rg8 d7 Rd6+ Ka7 Rd2 d8Q Rh2 Bd5 Rh8 Kb7 Rf8 Nd6 Nf7 Rd2 Nh8 Nf7 Qc3 Qgc7 Qce5 Rd3+ Kf2 Ra3 Kg1 Ra2 Nc6 e7 Rg8 Nd3 Bd4 Be6 Bf2 Nb2 Bg3 Bd5 Bd7 e8N Ne7 Ned6 Bdb5 Qdd7 Rc8 Qdd8 Be8 Qcd7 Rc6 Q7c7 Bd3 Bb3 Rc1+ Kb6 Bc4 Ka7 Q4f4 Kb7 Qfe4+
3Q4/BP2n1B1/1n2qP1p/N1k1B1r1/2p1q3/rqR1K3/q3N3/b2NqrQb w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ke2 h6 Ke1 h5 b4 Nf6 h4 Kf7 g5 Ke8 Ra6 Nfd7 Be2 Bb7 Bg4 hxg4 h5 Nf6 h6 Ng8 h7 Bc8 Rah6 gxh6 Ke2 Kd7 d4 Kd6 f4 e5 b6 a5 b7 c5 d5 a4 b5 e3 g6 a3 g7 g3 b6 e4 f5 a2 Qd4 a1Q Nf3 c3 Rf1 c4 Rd1 g2 Re1 g1Q Qd1 c2 Nd4 Qa2 Qd2 Qh1 Bb2 c1R Nc3 Nd7 b8B+ Kc5 d6 Ne7 g8Q Bb7 Nd1 Bg7 Ba7 Qb8 Ba1 Bf6 Qg1 Rg8 h8B Rg5 Bg7 Be5 f6 Bd5 Kf1 e2+ Kf2 Qh3 Rf1 Qe6 Ke3 e1Q+ Ne2 Qh4 Rf3 Qh1 Ndc3 Rf1 Nd1 Qb7 Bb2 Qhh3 Ba1 Qc6 b7+ Nb6 d7 Qg3 Bb8 Ra3+ Bc3 Qgh3 d8N Qe8 Ba7 Bd4+ Kf4 e3 Nc6 Be4 Na5 Bd5 Rf2 Bh1 Rf3 Qg6 Ba1 Bc3 Qd8 Qgc2 Nd4 e2 Bb2 e1Q Ne2+ Bd4 Ba1 Qg2 Bc3 Qcb3 Bb2 Bf2 Be5 Bd4 Ke4 Kb5 Kf4 Bc3 Ke3 Kc5 Rf4 Qgd5 Rd4 Bb2+ Rd3 Ba1 Rc3 Qe4#
RK3nQq/2r2r2/2N2B2/3b1QN1/p1kbPRp1/1q5P/2b1n1r1/N1bqQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Kd6 Kc4 a5 b4 f5 e4 g5 b6 f4 Kb5 g4 c4 a4 h3 d3 b7 d2 Na3 f3 Nb1 f2 Ra2 f1Q Qe2 d1Q Ra1 Nc6 b8N Qb3 Bg5 Nge7 Qe3 Bh6 Nf3 g1R Qe1 g2 Bf6 Rh7 Nbd2 Ng6 Ng5 Rf7 Rc1 Qh8 Kb6 Nd4 b5 Ra7 Nc6 Rc7 Rb1 Bb7 Ka7 Kc5 b6 Nf8 Kb8 Ba8 b7 d5 Rc1 Ne2 Rd1 Kb6 c5+ Kb5 Rb1 d4 Rc1 Qd5 Nb3 d3 Na1 d2 Rc3 d1B Rd3 Qe6 Rd8 Bc2 Rh2 Rh1 Re8 g1B Rf2 Qd5 Rf4 Kc4 Na7 Bg7 c6 Qd3 Qa5 Rcd7 Kc8 Qb3 b8Q Qfb1 c7 Nh7 Bb2 Rh2 Qe1 Rg2 Be5 Bf8 Bf6 Bd4 Rd8 Ba3 Rg8 Bd5 Nc6 Qd1 Qa8 Bc1 Qaa5 Be6 Qf5 Rfe7 Rd8 Bd5 Rg8 Qa2 Kb7 Qa3 Ra8 Nf8 Kb8 Rh7 Qg6 Qc3 c8Q Rhf7 Qg8 Rc7 Qf5 Qb3+
1b1K1n2/6b1/1r2qQ2/1rbNQNrp/p3Bn2/2q2n2/3P1QBP/R1bkN3 w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 f5 f4 b5 e4 bxa4 Ba3 Be6 Bb2 Bd5 exd5 Qc8 Ra3 Qd8 Re3 g6 Re4 fxe4 f5 g5 Be5 Na6 Bg3 Nb8 Bf4 gxf4 Ke2 Kd7 g4 Kd6 g5 Ke5 b5 Kd4 f6 a5 d6 h5 b6 c5 b7 e5 g6 a3 f7 a2 g7 a1B d7 f3+ Kf2 e3+ Kg3 e2 Qe1 Kd3 Qc1 f2 Qe1 Kc2 Kf3 a4 Ke4 c3 Kd5 e4 Ke6 c4 Nh3 e3 Ng1 Rh6+ Ke5 Qe7+ Kf5 Ra5+ Kf4 Qe6 d8Q Bc5 Kg5 Nd7 b8Q Ngf6 f8N Nd5 g8B Nf4 Qe8 Rb5 Bg2 f1R Qf2 e1B Qa8 e2 Qc6 Kd1 Ng6 c2 Bh7 c1B Nf3 c3 Ngh4 c2 Be4 Nf8 Nf5 Rg1 Qb8 Bg7 Qe5 Bb2 Qcd6 c1Q Qf6 Qcc4 Qc7 Qd3 Qce5 Bc1 Nc3+ Kc2 Qfd4 Bg3 Nd5 e1N Qe3 Kd1 Qf2 Nc2 Ne1 Nd4 Bf1 Qc3 Bfg2 Qd7 Qfe7 Rhb6 Q7d6 Bh6+ Kf6 Nf3 Qe6 Qd6 Kf7 Bg7 Ke8 Qc6+ Kd8 Qd6+ Qd7 Qe6 Qe7 Ne2 Q5f6 Bb8 Qe5 Nf4 Qf7 Nh4 Qff6 Nf3 Nd3 B1a3 Bf1 Rg5 Bg2+ Kc2 Ra1 Bc1 Ne1+ Kd1
b1N2K1n/n6q/2QNRnrB/2rP2pk/1n4r1/bB1N1q1P/p1B3qQ/8 w - - 0 1 legal: proof: b4 d5 a4 b5 g4 h5 f4 hxg4 c3 g3 f5 g2 c4 dxc4 axb5 e6 Ra6 exf5 Ra3 f4 Rg3 fxg3 d4 a5 Kd2 c5 Kc3 g5 e4 f5 h3 Kf7 b6 Kg6 e5 a4 b5 a3 b7 a2 e6 f4 e7 f3 b6 f2 d5 Qd7 Rh2 Rh6 Ba3 Nf6 Qc1 Nc6 b8Q Bb7 Qbf4 Na7 Ne2 g1Q Nd2 g2 Ne4 Rc8 Nd6 Ba8 b7 Kh5 b8N Rg6 e8B Qh7 Nc6 Qh1 Bb2 g1R Ne7 Rg4 Ba4 Qg2 Bb3 Rc6 Nec8 Qf3+ Kc2 c3 Ba3 Qg2 Kd3 c4+ Kd4 c2 Ke5 c3 Ke6 Rc5 Rh1 Be7 Qh2 Qf3 Bg2 f1Q Bb4 Q1f2 Re1 Q2g3 Bf1 Qgg2 Nf4+ Kh4 Qd1 c1N Qc2 Ne2 Nd3 Kh5 Qc1 c2 Bc3 Qh8 Kf7 Nf4 Re6 Qh6 Be2 Qh8 Bd1 Qh6 Qa3 c1N Bdc2 Bf8 Qa6 Be7 Ne5 Ncd3 Qc6 Nb4 Nd3 Ne4 Bg7 Nf6 Nb5 Bd6 Bf8 Qh7+ Bg7 Be5 Kf8 Bb2 Nbd6 Ba3 Nc1 Rh6 Nd3 Ng6+ Kf7 Nh8+ Kf8 Rg6 Bh6 Rh4 Re1 Rhc4 Re6 Rg4
7r/1qN1k1Nq/1Q1Rnn1n/n2p1RKN/Q6P/B1R2b2/P2r3p/1rb2b2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 h5 g4 hxg4 h4 a5 Bh3 f5 exf5 axb4 Qd3 gxh3 Qf3 Ra3 Qd1 Ra8 Kd2 b5 c4 e5 f4 g5 c5 h2 c6 d3 Ke3 b3 c7 b2 f6 d2 f5 b4 f7+ Ke7 Qe2 d1B Qd3 b3 Qd5 g4 Qd2 g3 Qd5 g2 Qc6 e4 Kf4 e3 Qc2 e2 Qc6 e1Q Be3 Ba6 c8R Qb6 Ne2 g1N Bc1 Nf3 Rf1 Nd4 Kg5 Nh6 Nbc3 b1N Ng3 b2 Nh5 Qe4 Qa4 Nd2 Nb5 b1R Rc3 N2b3 Nc7 Qbb7 Ba3+ d6 Rf2 Nd7 Rf1 Bg7 f8N Na5 Nfe6 Nf6 Rf2 Bf8 Neg7 Bf3 Rd2 Bf1 Rf2 Rb2 Rd1 Ra6 Rdd2 Rab6 Rd1 Re2 Rd2 Rb1 Rd1 Nd7 Rdd3 Rd2 f6+ Kd8 f7 Nf6 Bb4 Qh7 Ba3 Bg4 Rf5 Bf3 Qd1 Be7 f8Q+ Kd7 Qb8 d5 Re3 Bd6 Re6 Bg3 Rd6+ Ke7 Qa7 Bf2 Qa4 Be3+ Rf4 Rd3 Qa6 Bc1 Qb6 Rd2 Rf5 Ne6+
bR2n2q/NN1bRn1r/2nq1r2/2Pb1KQ1/2Q4p/1R2P3/1p4bQ/k1B3q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 a5 Bg2 axb4 Bf1 Be7 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Ra4 Rh5 Ra6 Rh1 Ra8 Kf2 Ke7 c4 Kd6 a4 Ke5 g7 d5 a5 h5 a6 f5 g6 b5 c5 h4 a7 d3 Ra3 Kd4 Qd2 b3 Ra5 b4 Qe1 b2 Nc3 b1N Bb2 d2 Ne4+ Nc3 Ng3 d1Q Ra2 b3 Ra5 Bd7 Rh3 Rh7 Nf1 Nc6 Ra6 Nh6 g8Q Nf7 Bc1 Nb5 g7 Nc7 Ra3 Ne8 Nd2 Kc3 e3 d4 Ra6 d3 Nf1+ d2 Ng3 b2 Nh1 Kb3 Rb6+ Ka2 Rb3 Ka1 Rg3 Rb8 Rg2 Rb6 a8R+ Ra6 Ne2 Qf6 Kg1 f2+ Kh2 f1Q Kh3 f3 Qf2 Qg1 Nhg3 f4+ Nf5 Qe5 Qg3 f2 Kg4 f1B Qh2 f3 Nd4 Bc4 Rab8 Bd5 Nb5 Qf6 Kf4 f2 Na7 f1B Rg6 Qd8 Re6 Bfg2 Re7 Qh5 Nd6 d1B Nb7 B1f3 Qf8 Bfe4 g8Q Qh6+ Qg5 Qf6+ Qf5 Qh8 Qe6 Bef3 Kf5 Qc7 Qg7 Qd6 Qd4 Ra4 Qdf4 Re4 Kg6 Re5 Qef6 Re6 Kf5 Be2 Q6g5 Ba6 Nd8 Bb7 Qc4 Ba8 Nb7 Rf6#
Q3q1R1/r1q1q3/3N2P1/b1b1nQKn/pr1N1r2/B2n2p1/P6R/1kr1R2N w - - 0 1 legal: proof: d4 f5 c4 e5 g4 fxg4 d5 g3 c5 e4 c6 bxc6 Bg2 cxd5 Bh3 d4 Be6 g5 h3 g4 Qc2 g2 Qd1 g3 Bb3 Bb7 Bc4 Bc6 Bd3 exd3 Qb3 Bf3 Qd1 Bg4 hxg4 Bh6 Nd2 Bg7 Nb1 Bf8 Kd2 Kf7 b4 Kg6 f4 c5 e4 h5 g5 d5 b5 a5 e5 Kf5 g6 Ke4 f5 c4 f6 c3+ Ke1 a4 f7 d2+ Ke2 c2 e6 h4 e7 h3 e8N h2 b6 Nc6 b7 Ne5 b8Q Qe7 Nf3 g1B Ng7 d3+ Kf1 d4 Kg2 Ra7 Nh5 Nf6 Ba3 c1Q Kh3 Qcc7 Qdb3 d1R Kh4 d2 Kg5 d3 Qe6 Bb6 Kh4 Rf1 Qd8 d1N Rg1 h1Q+ Kg5 d2 Rg2 Nb2 Qa8+ Kd3 Nf4+ Kc2 Nh3 Rh4 Qf5+ Nbd3 Nf2 d1R Nbd2 Rc1 Nc4 Ba5 Nd6 Rb4 Rh2 Qe8 Rb1 Nh5 Ra1 Qg2 Nh1 Qe2 Nd4+ Kd1 Nc4 Bc5 f8R Rf4 Nd6 Kd2 Nf3+ Kc2 Rg8 Rf1 Re1 Rg1 Bc1 Kb1 Nd4 Qe4 Ree2 Qeb7 Ba3 Rc1 Re1 Qbb6 Nc4 Qbe6 Nd6 Q6e7+
3Nq1nR/N1kq2b1/1npr1B1p/q2bQr2/3n3N/3R2P1/RP2r1KQ/6n1 w - - 0 1 legal: proof: f4 d5 h4 a5 a4 b5 axb5 e5 c4 exf4 e3 dxc4 h5 a4 h6 a3 Bd3 a2 Na3 gxh6 Bc2 h5 Rb1 h4 Bg6 a1Q Bh5 Qa2 Ra1 Qb1 Bg4 Bb7 Bc8 Bxc8 Kf1 Kd7 d4 f5 d5 h6 b6 f3 b7 c6 g3 c3 e4 c2 e5 f2 e6+ Kc7 e7 f4 e8R h3 Qd4 h2 Qf6 Qd7 Qd4 Ra4 Qe4 Bg7 Qe3 Qa2 Qe1 Re4 Kg2 f1R Be3 c1N Re5 Ne2 Qb1 Nd4 Nf3 Rh7 Rg1 h1N Qc2 Nf2 Nh4 Nh3 Re8 Rh8 Rh1 Ng1 Rd1 Qa1 Rd3 Qe1 Qe2 Qa5 Bd2 Rd1 Bc3 Rh7 Rf8 Qe8 Qf2 Be6 Qc2 Nd7 d6+ Kb6 Qd2 Bd5 Nb5 Rf1 Na7 f3+ Kh2 f2 Kg2 Ne7 Rh8 Ng8 Qc2 Rd1 Kh2 f1Q b8Q+ Ka6 Qc7 Nb6 d7 Qff7 d8N Qfd7 Qe5 Rf1 Kg2 Rf5 Ne6 Kb7 Qe2 Ngf3 Ra1 Ng1 Qc2 Qd6 Nd8+ Kc7 Qe7+ Qdd7 Ra2 Bf6 Qc5 Rhe7 Qf2 R7e6 Qe7 Rd6 Qe5 Nh3 Qg1 Bg7 Qh2 Ng1 Qe7 Nb3 Bf6 Nd4 Qe5 Re2+
2rBqq2/1Kb1Q2B/QPq2B1P/rn1Nb1Q1/n6b/p5Nr/kb4p1/7R w - - 0 1 legal: proof: f4 c5 e4 f5 g4 fxe4 b4 h5 d4 cxd4 a4 b5 f5 bxa4 f6 Ba6 Ra3 Bc4 Rg3 Be6 Rg2 Bf5 gxf5 Rh6 Rg6 Rh8 Rg4 hxg4 Ke2 Kf7 h4 a5 c4 e5 c5 g5 c6 d5 h5 a3 h6 g3 b5 g2 b6 d3+ Ke3 d4+ Kf2 a2 c7 a1B c8Q e3+ Kf3 a4 Ke4 g4 Qf3 a3 Qf4 d2 Ba6 d1R Qg5 d3 Ne2 g1B Nf4 e2 Qc5 e1B Nd5 g3 Bc4 g2 Qd2 Nd7 Qcf2 Ne7 Nb4+ Nd5 Qf1 Bgd4 Na6 Bd6 Rh2 Bh4 Qe3 d2 Qg5 Qf8 Qff4 Bc7 Bd3 Bab2 Nc3 Rh1 Nb4 d1Q Ne2 Qa4 Qf1 Qc6 Ng3 Ra5 Bd2 Rg8 Bc3 Rh8 Bc2 Rg8 Qa6 Nc5+ Kf3 Na4 Ke4 Qfd6 Bd3 Rc8 Bc2 Qf8 Bb1 Ke8 f7+ Kd7 f6 Kd6 Rh3 Kc5 Bc2 Qe7 f8B Qed6 Bg7 Qf8 f7 Rh2 Bd2 Rh1 Bf6 Ndc3+ Kd3 Nb5 Nd5 Bdc3 Ke4 Kc4 Bd8 Bd4 Bc3 Rh2 Bb1 Kb3 Bc2+ Ka2 Bd3 Qg8 f8Q Qg7 Qfe7 Rh1 Kf5 e4 Rh2 e3 Ke4 e2 Bc2 Ra1 Rh1 Qf8 Bd3 Bh8 Bf6 Rf1 Bc2 Rf3 Bd3 Nbc3+ Kd4 e1Q Bh7 Qee6 Ne2 Rh3 Ng3 Qce8 Kc4 Rc5+ Kb4 Nb5 Ka5 Bbe5 Qb7 Q6c6 Ka6 Nd6 Ka7 Ra5+ Qa6 Bb2 Bc3 Be5 Bd4 Bf4 Bf6 Bfe5 Qg4 Qc1 Qg5 Nb5+ Kb7 Qcc6+
R3N1qn/B1B1q2n/p2n3k/2p1Q3/7r/P1PQbn2/Q2NK1Nb/b2r3r w - - 0 1 legal: proof: f4 e5 b4 exf4 a3 c5 Ra2 cxb4 Rb2 d6 Rb3 Qe7 Rc3 Qd8 g4 h5 Rd3 f5 Rc3 f3 Rc5 f4 Bh3 Bf5 gxf5 dxc5 Bg4 hxg4 h4 Kf7 d4 g5 e4 Kg7 e5 b5 d5 a6 h5 b3 f6+ Kh6 e6 g3 e7 g4 e8N b2 f7 g2 d6 f2+ Ke2 f1Q+ Kd2 f3 d7 b4 Nh3 g1B Nc3 b1R Rh2 g3 Ng5 f2 Qe1 g2 Na2 b3 Bb2 Qe7 d8Q Nc6 Ne6 Bg7 f8Q Rd1+ Ke3 Ne5 Qf7 Qc4 Nc3 Ng6 Nb1 Nf6 Qd3 f1N+ Ke2 Nd2 Be5 b2 Bb8 Nh7 Ba7 Nf3 Nd2 Be3 Nf4 g1B Ng2 b1N Rh3 Ba1 c3 Qg4 Qa2 Bh2 Qg3 Rh1 Qe5 Rd8 Rh4 Qge6 Rb4 Rd4 Rb8 Qc4 Ra8 Rh4 Nf6 Rd8 Ne8 Qg8 Qed4 Kg5 h6 Nh8 Q4e4 Ne5 Qed4 Nef7 Q4e4 Nd6 Qed4 Nf8 h7 Kh6 Qdd5 Nhf7 h8B Nh7 Be5 Nh8 Bg3 Rd7 Qe5 Rd8 Nc4 Nd2 Bf4+ Ng5 Bg3 Ndf3 Nd2 Nh7 Qed5 Ne4 Bc7 Nd6 Q5f5 Rb8 Qfe4 Rbb1 Qe5 Rbd1
1rb3b1/N2q2Pk/1pNn4/B3b1Qr/3KRNQ1/3QnqBn/1p3P2/2q2b2 w - - 0 1 illegal: No possible last move, all moves rejected
2rnr1q1/3P2R1/1rqrB1p1/PB1QB1n1/K2p3N/8/3bqN2/1kb2QNb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d3 hxg4 d4 c5 a4 d6 c4 Rh5 d5 Rh6 Qd4 Rh8 Ra2 Qc7 Rc2 cxd4 c5 Qd7 c6 Qd8 Rc5 dxc5 Kd1 Kf7 Kc2 Kf6 Kb3 Ke5 f4+ Ke4 h4 e5 a5 b5 d6 g6 f6 g3 d7 c4+ Kb2 g2 c7 b3 f5 b4 h5 c3+ Ka1 c2 Kb2 Nc6 h6 Bb7 h7 Bh6 c8B Bd2 f7 Nh6 f8Q Nf7 f6 Ng5 Qg7 Qg8 f7 Nd8 f8Q Bd5 Bb7 Rc8 Nf3 g1Q Nh4 Qg2 Nc3+ Ke3 Bb5 e4 Ne2 Qf3 B5c6 Kd3 Ng1 e3 Qe5 e2 Qe6 Be4 Qd5 e1Q Ba8 Qg2 Qf1+ Qee2 Rh2 Qh1 Rf2 Qg2 Rf7 Qf3 Rg7 Qf6 Ba4 Bh1 Bb7 Qc6 Ba8 Qge6 Bb7 Re8 h8N Qg8 Nf7 Nf3 Nd6 Ng5 Ka1 b2+ Ka2 b1R Ne4 b3+ Ka3 b2 Bb3 Ra1+ Ba2 b1R Ba6+ Rb5 Ka4 Rb1 Ba3 c1B Bd6 Kc2 Be5 Rb6+ Bb5 Rb2 Bc4 Kb1 Nf2 Rc2 Qc5 Rc3 Be6 Rf3 Qd5 Rf6 Bg4 Rd6 Bh3 Bc3 Be6 Bd2
2n5/B2P2rK/B1Pq2Q1/b1Q1R2N/3r1pQ1/r1q1p1q1/bRB2nk1/1r1b4 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 g5 h4 gxh4 e4 e5 Nc3 exf4 axb5 c5 e5 cxb4 Ne4 dxe4 Ke2 Kd7 c4 Ke6 g4 h5 d4 f5 b6 a5 b7 b3 c5 Kd5 c6 f3+ Ke3 h3 Kf4 e3 g5 h4 g6 b2 e6 b1B g7 f2 e7 a4 Kg5 Ke4 Kg6 a3 e8B f4 d5 a2 d6 h2 Qe2 h3 Qd1 Ne7+ Kg5 Bg4 g8Q Nd7 b8Q Nc5 Qb6 Nc8+ Kg6 Ra3 Qdb3 Bd1 Bc4 f1Q Qa4 Nd3 Qc5 Qe1 Ne2 Kf3 Ng3 Kg2 Bb2 Nf2+ Qc2 Qg1 Qg7 Rg8 Bd4 Qe1 Rf1 h1R Kh7 h2 Qcg6 Qe7 d7 Qd6 Bef7 Be7 Bfe6 Bd8 Bf5 Ba5 Bc2 Rg1 Ba6 h1R+ Qgh5 Qc3 Qg4 Rh2 Qh6 Rh5 Re1 Rd5 Qhg6 Rf1 Re2 Qe1 Bf6 Rd4 Bd8 Qc3 Bb6 Qe1 Ba7 Rh1+ Qh6 Qg1 Rd2 Qh2 Nh5+ Qg3 Qhg6 Bf3 Qcf5 Rad3 Rd1 Bb4 Rd2 Rc1 Qgf6 Bd1 Bb3 Bc3 Rc2 Bd2 Rc5 Ba5 Q6g6 Rdc3 Ba4 Ra3 Rd5 Bbc2 Qe5 Bb3 Rb1 a1Q Qeg5 Bc4 Bc2 Qc3 Rb2 Ba2 Rf5 Rb1 Qe7 Qe5 Qc5 Qd6 Re5 Rg7+
2r2q1n/B1bp1N1k/1QP2q2/QBr1pK1P/q2b3N/1N5n/1Q4b1/3b2rR w - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 g4 c5 e4 cxd4 a4 gxf4 g5 b5 axb5 fxe4 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kf2 Kf7 h4 Kg6 c4 a5 c5 e5 b6 a4 b5 g3+ Ke2 f3+ Kd2 e3+ Kd3 g2 Ke4 d3 b7 e2 h5+ Kh7 b6 e1R+ Kf5 d2 Ba3 f2 Bd3 f1Q+ Qf3 d1B Nc3 Na6 b8Q Bb7 Qc7 Nb4 Bc1 a3 Be3 a2 Nb1 a1Q Bb5 Rc8 Nd2 Bd6 Nb3 Nd5 Qf2 Nf4 Qb2 Nh3+ Nf3 g1B Bd4 Bc6 b7 Qa4 Qa5 Bc7 b8Q Bd5 Qbb6 Ne7+ Kg4 Ng6 c6 Rg8 Kf5 Nh8 Bf2 Re2 Nh4 Bf3 Bc5 Rc2 Bd4 Rc5 g6+ Kh6 g7 Kh7 Be3 Bg2+ Bf2 Re8 g8N Qe7 Nh6 Rg8 Nf7 Qf8 Nf3 Rg4 Be1 Bd4 Bf2 Rg7 Nh4 Bd5 Qb8 Rg1 Qbb6 Bg2 Qb7 Rc1 Kf6 Bc3 Qb8 Bdf3 Bc5 Bd4 Ba7 Rc5 Qbb6 Qf2 Ng6 Qh4+ Kf5 Qhe7 Nh4 Bd1 Qbd2 Qd6 Qb2 Qf6+
7K/2pQRB1N/bB1Q1n1P/r3Qn1b/p1B2bRn/q6P/r2q2n1/1rk5 w - - 0 1 legal: proof: b4 d5 c4 dxc4 g4 h5 f4 b5 a3 e5 Nc3 exf4 Ne4 Nd7 gxh5 Nb8 a4 bxa4 Nc5 Nd7 Nb3 axb3 Ra5 Nb8 Ra2 Qd5 Ra1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 d4 a5 h6 f5+ Kf3 Kd5 h3 g4+ Kg2 Ke4 e3 c3 b5 f3+ Kg3 c2 b6 f4+ Kh2 f2 d5 b2 d6 b1R d7 f3 Kg3 Nc6 b7 Nd4 b8Q Nf6 Kh4 g3 Kg5 g2 Kg6 Bd6 Kg7 Ba6 Bc4 f1B Ra4 f2 Qb2 Bf4 Nf3 Be2 Re1 f1N Qc3 g1N Ng5+ Kf5 Qa1 Bh5 Nh7 Ngf3 e4+ Ke5 Bd2 c1Q Be3 Qa3 Rb4 Nh4 Qc3 Kd6 e5+ Kc5 e6 a4 e7 Re8 Bg1 Ne3 Qb2 Rf8 e8B Neg2 Bef7 Re8 Qa1 Re2 Qc3 Ra2 Re7 Rb8 Qe3 Rb5 Qg3 Ra5 Be3 Qa8 d8Q Qd5 Qd7 Qg5+ Kh8 Qd5 Bd2 Ndf5 Qe2 Kd4 Be3+ Kc3 Bb6+ Qd3 Qe5+ Kd2 Qed6 Kc1 Qe1+ Qd1 Qee5 Be2 Rb3 Qe1 Rg3 Bh5 Rg4 Qd2
2BR2R1/1P4Rr/BP1bNn1b/1q1nq1pQ/1Q2p2r/1b2b3/2n1Q1q1/2K3k1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 c5 axb5 cxd4 e4 fxe4 f5 h6 Bf4 Qb6 Nd2 Qc7 Ndf3 gxf4 g5 Qb6 g6 Qd8 Ng5 hxg5 Kd2 a5 c4 d5 h4 Kd7 b4 Kd6 c5+ Ke5 h5 e3+ Kc1 Ke4 f6 e5 g7 a4 c6 f3 c7 d3 f7 f2 h6 d2+ Kc2 e2 h7 Ke3 b6 e1B b5 a3 b7 e4 b6 a2 Bh3 f1Q Ne2 Kf2 Rg1 d4 Rc1 a1B Rb1 d3+ Kb3 Ne7 g8R Bag7 Rc1 Qd6 Nc3 Nd7 Kb2 Nf6 Qb3 d1N+ Kb1 d2 Qc4 Bh6 Rg3 Qe5 Rd3 Kg1 Nd5 Bf2 Nf4 Ne3 Ne6 d1Q Rd8 Qf3 Qe2 Nc2 Rg7 Bd7 c8B Qg2 Rd1 Ba4 Kc1 Ned5 Rg8 Bb4 f8Q Bd6 Bg4 Bb8 Qb4 Bd6 Rd7 Bb3 Rdg7 Ne1 Rd2 Be3 Bh5 Qff5 Be8 Nc2 Bb5 Qg6 Bc4 Qe8 Ba6 Qb5 Re8 Rf8 h8Q Rf7 Rd8 Rb8 Rgg8 Rh7 Rd7 Bhf8 Rdg7 Rh4 Qhh5 Ra8 Rc7 Bh6 Rcg7 Rb8 Bd7 Re8 Bc8 Re7 Qc3 Nf4 Qb4 Bdc5 Rg6 Rh7 R6g7 Be7 Kd1 Bf8 Rd6 N4d5 Rd8 Bf2 Kd2 Bd6 Kc1 Be3+
1B2B1b1/nP1rQ1Qp/b2R4/N3n2n/q6q/rq2bqB1/2QKp2P/6Nk w - - 0 1 legal: proof: e4 b5 Ke2 d5 f4 dxe4 a4 g5 b4 gxf4 Nc3 f3+ Ke3 c5 axb5 cxb4 Nb1 f2 Ra6 Qd7 Rf6 Qd8 Rf3 exf3 c4 Kd7 g4 Ke6 d4 a5 b6 f5 d5+ Ke5 b7 f4+ Kd2 Ke4 g5 e5 d6 b3 c5 b2 g6 a4 c6 a3 g7 a2 d7 a1Q c7 Qh4 d8B Bc5 Bc4 f1N+ Kc3 f2 Qh5 f3 Bh6 Ra3+ Bb3 Nd7 Bhg5 Ne7 g8Q Be3 Qhf7 Ng3 Qh5 f1Q Bf4 f2 Qgg4 Nc6 Qd1 Na7 Qh6 Nh5 Bf6 Rd8 Bg3 Qg2 Qf8 f1B Qe7 Qf3 Qc2+ Bd3 Qg2 Ba6 Kc2 Qa2 Bf7 Qa1 Be8 Qa2 Bf2 Kf4 Qg8 e4 Qgg7 Ne5 Nd2 Be6 c8Q Rd7 Nb3 Bg8 Na5 Qa1 Qc3 Qa2 Qd2 Qc4+ Qc3 Qa4+ Qb3 b1Q+ Kc3 Bd4+ Kd2 Bc5+ Qd3 Qbb3 Bg5+ Kg4 Bg3 Bd4 Qc2 e3+ Ke1 e2 Bf4+ Ng6 Bd6 Be3 Bb8 Qfd5 Nh3 Kf3 Rf1+ Kg2 Ng1 Qf7 Rf6 Ne5 Rg6 Kh1 Rd6 Bb6 Kd2 Qff3 Qg4 Bd4 Qgg7 Be3+
1Nn1nq2/p4N1k/br2NB2/2P3Bq/1bq2QpP/n6b/1n1K2R1/3QB2r w - - 0 1 illegal: No possible last move, all moves rejected
1nrr4/Q5r1/5R1r/Q1p1Pqk1/2P1p1nN/RN2n1b1/1N2rR2/1K1br1B1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 e5 d4 f5 Bd3 exd4 e5 axb4 Be4 b5 axb5 fxe4 Kd2 Kf7 g4 Kg6 c4 h5 Kc2 c5 f4 d5 g5 b3+ Kb2 h3 b6 d3 b7 h2 Qc2 d4 Nc3 h4 Qg2 d2 Na2 d1N+ Kb1 h3 Bd2 d3 Nc3 b2 Be3 d2 Nge2 Bg4 Rf1 h1R Rf2 h2 Nd4 Qd7 Nb3 Be7 Ra3 Rh6 Na4 Rg1 f5+ Kh5 f6 h1R f7 Nf6 f8R Qf5 g6 Rh2 Bd4 Kg5 g7 Ne3+ Qf1 Bd8 g8N Bd1 Qe1 Nfg4 Ne7 Rg3 Ng6 Bf6 Rf3 Re2 Nh4 Bd8 Rf6 Rg1 Ka2 b1R Nb2 Rc1 Qg3 Rge1 Rf2 Rc3 Kb1 Rd3 Bc3 Rd7 Bd4 Rg7 Qg1 Na6 Qf1 Rc8 b8Q Ba5 Qa7 Nb8 Nc1 Bb3 Qg1 d1R Qh2 Rd3 Qh1 Bd1 Nb3 Rdd2 Qh3 Nd5 Qc3 Nde3 Qb4 Rd3 Bc3 Rdd8 Bd4 Rg1 Qbb6 Be1 Qba5 Rf1 Rf3 Bg3 Rf4 Nd5 Bg1 Rfe1 Rf2 Nde3
5Q1b/2B1qr2/n1QQ1r2/PrR3n1/p2B4/1rPp4/K1k1b1r1/RrBb3N w - - 0 1 legal: proof: e4 a5 h4 g5 d4 gxh4 d5 f5 exf5 c6 Be2 cxd5 Bf1 d4 b4 a4 Bc4 Ra6 Bd5 Ra8 Bb3 axb3 a4 b5 a5 Ba6 Nc3 Bc8 Na4 bxa4 Kd2 Kf7 g4 Kf6 f4 h5 b5 e5 b6 d5 b7 e4 c3 b2 Kc2 b1R Qd3 h3 Qe3 h2 Ra3 d3+ Kd2 d4 Qf3 e3+ Kd1 e2+ Kd2 e1R Qe4 h4 Qg2 h3 Qf1 Ra7 Qf3 Re5 Ra1 Rb3 Ne2 Bg7 Ng3 Na6 b8B Nh6 Bc7 Rg8 Qc6+ Be6 Re1 Qe7 Nh1 Reb5 Re5 Nf7 Rc5 Bh8 Kd1 d2 Kc2 Ng5 Qd6 Kf7 f6 Kg6 f7 Rab7 f8Q d1B+ Kd3 Be2+ Kc2 Rg7 Qa8 R7b6 Qac6 Rf7 f5+ Kf6 Bb2 d3+ Kb1 Bd1 Ng3 h1R Ka2 h2 Bc1 Rg1 Nh1 Be2 Qcd7 Rg2 Q7c6 Kg7 f6+ Kg6 Qe8 Bd5 Qa8 Bdf3 Qac6 Ne4 g5 Bd1+ Bd2 Bfe2 Bc1 Kh5 g6+ Kg4 g7 Kf3 Ba3 Ke3 g8Q Kd2 Qf8 Kc2 Bc1 Rfg7 f7 Ng5 Qc8 Rh7 f8B Rf7 Bg7 Bf1 Q6b7 Bfe2 Qf8 Rc6 Bd4 Rcb6 Ng3 h1R Qbc6 Rhf1 Nh1 R1f6 Qdd7 Rb1 Qcd6 R5b3 Q7c6 R6b5
4b3/1knr1qp1/4Q1KR/Q1rP2bn/1pN3B1/Nn5P/n1n5/1bn1QN1R w - - 0 1 illegal: No possible last move, all moves rejected
b2b2k1/4rN2/3bBpn1/N1q1r2P/P6N/qpQb1K2/2b2bQ1/n2RRR2 w - - 0 1 legal: proof: f4 d5 g4 h5 b4 hxg4 c4 a5 cxd5 axb4 f5 c5 f6 b3 Ba3 b2 Bb4 cxb4 Qb3 exf6 Qc2 f5 Qd1 f4 Kf2 b5 d4 g5 a4 g3+ Kf3 f6 h4 Kf7 e4 b3 h5 g2 e5 g4+ Ke4 f3 d6 f2 d7 b4 d5 g3 d6 Qa5 d8R Qc5 d7 Nc6 Re8 Nd4 d8Q Bb7+ Kf4 Nc2 Q8d4 Ne7 e6+ Kg8 Rh3 Ng6+ Kg4 Rh7 e7 Ra5 Rd8 Ba8 e8N Bd6 Bb5 f1Q Bd7 Re7 Nd2 b1B Ngf3 g1B Nc4 g2 Nh4 b2 Qe2 b3 Rh1 Bf2 Qc3 Qc1 Re1 g1B Qf1 Qa3 Qg2 Rae5 Na5 Qe3 Bf5 Qec5 Bc8 Bh2 Rf1 Bc7 Rdd1 Bd8 Nd6 Bhg3 Nf7 Bh2 Ra2 Na1 Be6 Bd3 Rde1 b1B Rd2 Bbc2 Rdd1 Re4+ Kf3 Bd6 Bc4 R4e5+ Bd5 Re4 Be6 Re5+
4K1q1/QrR3b1/2B1k3/1b1nP3/2Q1n3/bRQn4/q1RpPpn1/NbN1r3 w - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 f4 axb4 h4 g5 Ba3 e5 fxe5 gxh4 Qd3 bxa3 Qd2 Qf6 Qd1 Qd8 Kd2 Ke7 Kd3 h5 Kc4 f5 Kb5 d5 c4 a2 g4 h3 g5 f4 g6 h2 c5 d3 a5 d4 a6 f3 c6 h4 c7 h3 a7 f2 g7 d2 Qa4 d1N Qa5 d3 Qa6 d2 Qg6 Bd7+ Kc5 b5 c8Q b4 Qcc6 b3 Qf3 b2 Qfh5 Ne3 Qf3 Rh7 Na3 b1B Qge4 Nc6 Nc2 Nf6 g8R Ng2 Rg3 Nb4 Qc3 Nfd5 Nf3 Bg7 Nfd4 Bb5 Nb3 Qg8 Qec4 Ke6 Nc1 Rb8 a8Q Rb7 Rg1 h1N Qa7 h2 Rf3 Rh6 Rf7 Ng3 Rc7 Ne1 Bg2 h1Q Be4 Ng2 Rf1 Qh5 Rh1 Qhf7 Rh3 Nh1 Re3 Ng3 Bf3 Rh1 Rd3 Kf5 Kd6 Re1 Re3 Ne7 Bd5 Nd3 Bc6 Ne4+ Kd7 Qff8 Qcc5 Nd5 Q5c4 Qa3 Rh3 Qh7 Ke8 Ke6 Nb4 Bc2 Rb1 a1B Rb2 Bb1 Nc2 Qa2 Rb3 Bb2 Na1 Ba3 Rb2 Bgf8 Rc2 Qg8 Q3d4 Nb4 Rb3 Nd3 Qdc3 Bg7#
1q2rn2/n1QN2b1/1RrQ1b2/3PP3/r2k3n/Qppq1RN1/7K/2B1nrR1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g4 h5 Ba3 f5 Bc1 f3 Bg2 f4 Bh3 Bf5 gxf5 Nc6 Bg4 hxg4 Qb3 Nb8 Qc2 Qg5 Qd1 Qd8 Kf2 Ke7 h4 Kd6 d4 Kd5 a4 b5 h5 c5 h6 g5 f6 c3 f7 g3+ Kf1 c4 e3 g4 a5 b3 a6 b4 a7 c2 h7 g2+ Kf2 b2 Qd2 b3 Qd1 g3+ Ke1 f2+ Ke2 f1Q+ Kd2 f3 Na3 b1R Nh3 g1N Rh2 g2 Nf2 Nd7 Rh6 Bg7 f8R Qd3+ Ke1 Ne7 Nh1 Qb8 Kf2 Nc8 Ng3 c3 Rf7 Re8 h8Q Nf8 Rb6 Re6 Nc4 Rc6 Qh1 Rb2 Qh2 Ra2 Qh7 Ra4 Ne5 Bf6 Nd7 Bg7 Ba3 c1B e4+ Kc4 e5 Bg5 Qd2 B5f6 d5 Kd4 Bc1 Ne2 Rb1 g1N Qdh6 Nf4 Q6g6 Ng2 Qgh6 Bg5 Qd6 Ne1 Rf5 B5f6 Ra1 Ne2 Rb1 Nf4 Kg1 f2+ Kh2 N4g6 Rf3 f1R Ra1 Qb7 Rb1 Rb8 a8Q Nh4 Qa5 Na7 Qab4+ Qc4 Qa3 Re8 Ra1 Bh8 Qhe7 Qb8 Qd8 Bfg7 Q8c7 Qb5 Ra2 Bf6 Rg2 Bhg7 Rg1 Qd3
Rbn4R/1N3K1Q/r1P3NQ/q3P2B/p2Q3N/q2q4/2rp1qnb/1rr1k3 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 a5 f3 a6 bxa6 Qd2 a5 Qd1 a4 Na3 f5 Ra2 h6 Bf4 Bb7 Nb1 Be4 Bg5 f4 Ra1 Bf5 gxf5 hxg5 Kf2 Kf7 h4 Kf6 e4 Ke5 c4 d5 b4 a5 f6 a3 h5 g4 h6 g5 b5 d3 h7 Kd4 e5 a4 b6 d2 f7 a2 c5 Ra6 b7 Nf6 c6 Qa5 Rh3 Nbd7 b8Q Nb6 Qc7 Nh5 Qc1 d1R Na3 Bd6 f8Q Nc8 Ne2+ Kd3 Qe8 d4 Nb5 g3+ Kg1 f2+ Kg2 g4 Rb1 a1Q Qce7 f3+ Kh1 g2+ Kh2 g1R Q8d7 Bb8 Nd6 Nf4 Nb7 Ng2 Kg3 Qa3 Qh6 Rc1 Nf4+ Kd2 Be2 f1Q Ng6+ Ke1 Nh4 d3 Qd4 f2 Rb6 Rf8 h8N d2+ Bf3 Qfd3 N8g6 f1Q Qeh7 Rc2 Rb5 Rg8 Rd5 Rg7 Rd8 Rd7 Rh1 Rd5 Rh2 Rb5 Rh3 Rb1 Rg8 Ne3+ Kf4 g3 Kg5 g2 Kf6 Qf2 Kf7 Rh1 Rh8 g1B Rd8 Ng2 Rf8 Qfe2 Bh5 Bh2 Rh8 Qf2+ Rf3 Qfe3 Rf6 Qee2 Re6 Rbc1 Ree8 Qf2+ Bf3 Rb1 Re7 Qa1 Nc5 Q1c3 Ra7 Qa3 Nb7 Kf1 Ra8 Qg3 Bh5 Qf2+ Nf3 Ke2 Ra7 Rhc1 Ra8 Nf4 Nfh4+ Ke1 Kf6 Ng2+ Ke6 Nf4+ Kf7 Ng2+
k5Kn/1nqq2N1/3nbNQP/4q1p1/r2PqQ1N/4pB1q/rBr1R3/1Q6 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 f5 a4 fxe4 c4 h5 Ra3 d5 Rg3 dxc4 Rg4 e6 f5 Bd6 g3 Bf4 gxf4 hxg4 Kf2 Kd7 Ke3 Kc6 d4 g5 h4 b5 a5 Kb7 h5 c5 f6 c3 f5 g3 f7 c4 f8Q c2 h6 g2 f6 b3 f7 b2 Rh5 e5 Na3 b1Q Bd2 c1R Be1 b4 Qe2 c3 Bg3 c2 Qf3 b3 Qf2 b2 Qd6 Be6 f8N Nc6 Rh2 Qd7 Bf4 Nd8 Nf3 g1Q Bg2 Ne7 Nh7 Ng6 Nh4 Qf1 Bf3 Qh3 a6+ Ka7 Qe1 Nb7 Nf6 Rh7 Qg3 Nh8 Nc4 Rg7 Re2 Rgg8 Kd2 e3+ Kc3 e4 Qc6 Rgc8 Nd6 Rh1 Qg1 Rh2 Nde8 c1Q+ Kb4 Qd3 Ng7 b1N Qc7 Nc3 Qe5 Qcc2 Qb1 Rf2 Qf5 Nb5 Qg6 Qcc7 Bd6 Kb6 a7 Kc6 Bf8 N5d6 Be7 Qb5+ Kc3 Qe5 Bf8 Nc4 Ba3 Ncd6 Bb2 Rh2 Re1 e2 Kb4 Rab8 a8Q Rg2 Qa3 Ra8 Qe3 Ra4+ Kc3 Rca8 Qf4 R8a5 Rf1 Ra2 Rf2 e1Q+ Rd2 Qeh1 Rc2 R5a4 Re2 Nc4 Kb3 Kb6 Kc3 Ka7 Kb3 e3 Kc3 Qec5 Kd3 Qce7 Ke4 Ncd6+ Ke5 Ka8 Ng8 Qee8 Kf6 Bc4 Ngf5 Bf7 Kg7 Qe5+ Nf6 Be6+ Kf8 Rf2 Ng7 Q1g2 Bh5 Qge4 Bf3 Ndf7 Kg8 Rg2 Re1 Rc2 Re2 Nfd6+
4nNK1/2r1rp1r/BPQ3PN/Brn4q/1Bb1r1nQ/N7/kqp5/2R4q w - - 0 1 legal: proof: g4 d5 c4 dxc4 h4 e5 f4 exf4 b4 b5 a4 bxa4 g5 g6 Ra3 Bc5 Rg3 Bb6 Rg4 f3 Rf4 Be3 Rf5 gxf5 g6 Bg5 hxg5 f4 Kf2 Ke7 e4 Kd6 d4 a5 d5 c5 g7 h5 g6 a3 b5 h4 b6 c3 Nh3 c4 e5+ Kc5 d6 Kb4 d7 c2 e6 Kb3 e7 a4 e8N c3 Ng1 h3 Nf6 a2 Qd2 a1Q Ne8 h2 Qd6 a3 Ne2 a2 Nf6 Ra4 Qd3 Ba6 Qd1 Bc4 Ne8 Qh4+ Ng3 Qb2 d8B a1R Qd4 Rh7 Nf6 Na6 Na3 Nc5 Nd7 Qh5 Bd2 c1R Nf5 Ka2 Be7 Rab1 Nf8 Nf6 g8Q Ne8 Nh6 Rc2 Rg1 h1Q Qgg7 Re1 Qgf6 Ra7 Qdd6 Re4 Qc6 Rc1 Bd6 Rae7 Qh4 Rb1 Bd3 c2 Ba5 Rc7 Be5 Rbe1 Bec3 Ree7 Bcb4 R1e4 Kf1 f2 Be2 Q1f3 Bd3 Qd1+ Kg2 f1R Kh3 f3 Be2 f2 Bd3 Bd5 Ba6 Bc4 Kg3 Rfe1 Rf1 R4e5 Kf4 Qda1 Rh1 f1N Rg1 Rb1 Rh1 R5e6 Rg1 Ne3 Rc1 Qf3+ Kg5 Ng4 Kh5 Re4 Kg5 Nf2 Rg1 Qd4 Bd2 Rb5 Bdb4 Qe2 Rb1 Qdd1 Rc1 Qh1 Kf5 Qb1 Kg5 Nd6 Kf6 Qh5 Bd2 Qb2+ Bdc3 Rh8 Kg7 Rh7+ Kg8 Ng4 Bcb4 Ne8
rN6/rk2Bn1p/1b1qRBBn/3r2KR/3pP1Qr/P3Q1n1/1r2R3/4r2r w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Nd2 e4 Nb3 fxg6 Na5 g5 Nb3 g4 h3 g5 Nd2 b6 Ndf3 g3 Be3 g2 Qb1 g4 Bc1 g3 Ne5 Bb7 Nd3 exd3 Ba3 Ra4 Qd1 Bf3 Bc1 Bg4 hxg4 Ra8 Kd2 d5 f4 Kd7 e4 Kc7 c4 b3 a3 b5 c5 b2 f5 b1R g5 b4 f6 b3 g6 b2 f7 Qd6 c6 Ra7 g7 Nh6 g8Q Nd7 Qe2 Ne5 Nf3 g1R Qg4 g2 Rh5 Rh1 Qe3 g1N Bh3 Ne2 Ra2 Bg7 f8B Ng3 Be7 Rha8 Bf6 Kb8 c7+ Kb7 c8R Ra1 Rc5 b1R Rac2 Rb2 Rc6 Bf8 Ra6 Be7 Rc6 Bd8 Be7 Bb6 Bf6 Ng6 Ne5 Rab1 Nd7 Ne5 Nb8 Rh2+ Bg2 Rh4 Bh3 Ra1 Qg8 Rab1 Bf5 Ra1 Qg4 Rab1 Ke1 d2+ Kf2 d1R Re2 d3 Bg6 Rdh1 Bd2 d4 Bb4 d2 Kg2 d1R Bc5 Qd8 Re6 Rde1 Bce7 Qd6 Kf2 Rb5 Kg2 R1b2 Kf2 Nef7 Kf3 Ne5+ Kf4 Rd5 Kg5 Nef7#
1K4B1/1R3P2/1nQ2pr1/1r1Qbn2/1rR4b/P1r2p2/RQrrrk1N/4N2b w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 g5 a5 Bd2 axb4 Be3 Qf6 Bc1 Qd8 g6 f6 Be3 h6 Bf2 Ke7 Bh4 Qe8 Bg5 Qf7 gxf7 hxg5 Kf2 Ke6 Kf3 Kf5 c4 b5 h4 d5 a3 g4+ Kf2 Ke4 h5 g5 c5 b3 e3 d3 c6 g3+ Kg2 d2 c7 d4 h6 b2 h7 d3 Nf3 b4 Qe1 d1R Nh2 d2 Qf2 b3 Be2 g4 Re1 Bd6 Nf1 Rc1 Bb5 d1R Qd2 Be5 Ra2 Nh6 Nh2 Bb7 c8R Re8 h8Q Nf5 Qh5 Rc3 Qc1 Nd7 Rc4+ Kd3+ e4 Rac8 Nd2 b1R Qb2 Nb6 Ndf3 Rd2+ Re2 Rc7 Rf2 Ke3 Ne1 Rc5 Bd7 Rbc1 Be6 R1c2 Qg5 Ng7 Bf5 Rb5 Bh7 Nf5 Bg8 Re7 Qc1 b2 Qh5 b1R Qb2 Nh6 Qf5 Rb4 Qd7 Nf5 Qd5 Bd4 e5 Rb5 e6 Be5 Qa1 R1b4 Qb2 Re8 e7 Ba8 Kh1 g2+ Kg1 Re2 Rf1 Rd8 e8Q Rd6 Qec6 Rd8 Qde6 Rdd2 Qed5 Bb7 Nef3 Ba8 Rb1 Bb7 Ne1 Ba8 Nhf3 Bb7 Kh2 g3+ Kh3 g1B Kg4 g2 Nh2 Kf2 Kh5 Ba8 Kg6 Ng3 Kg7 Nf5+ Kf8 Bb7 Ke8 Ba8 Nhf3 Bh2 Kd8 Bg3 Nh2 g1R Ng2 Bh4 Ne1 Bd4 Kc7 Be5+ Qcd6 Bc6 Kb8 Bb7 Qd3 Bg2 Qd5 f3 Qc6 Bh1 Qd5 Bd4 Q6c6 Rg6 Nf1 Na8+ Kc8 Ra4 Qa1 Rb6 Nh2 Be5 Rb5 Rb4 Qb2 Ra6 Rb7 Ra5 Qa1 Rab5 Qb2 Nd6+ Kb8 Nb6 Qd3 Nf5+ Qdd6 Bd4 Qdd5 Be5+
1NQ5/1qR2n2/qR5p/Kn1PR3/b4nqr/B1r1Pn1q/Bp2kB2/1Q3q2 w - - 0 1 illegal: No possible last move, all moves rejected
Nn1q2Q1/1k1r4/1B3qP1/Qr3Q2/p1NPq1np/1Rbq3q/2Kn2n1/5RR1 w - - 0 1 illegal: No possible last move, all moves rejected
1QN1n3/7r/bqP5/2K1BN1k/5q1q/R2R1PqR/1Q1r1ppq/br3Nr1 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 e3 cxd4 Ba6 e5 Be2 exf4 Kd2 f3 Bd3 f2 Ba6 f1R Nc3 h5 Bb2 f5 Nce2 f4 Nc3 f3 Nb1 f2 Bc1 Nc6 Be2 Ne5 Bg4 Nf3+ gxf3 hxg4 Kd3 Kf7 Kc4 Kg6 a4 b5+ Kd5 d3 h4 g3 c4 d2 c5 b3 a5 g2 a6 b2 a7 b4 c6 b3 e4 Ba6 e5 Rh7 e6 Nf6+ Kd4 d5 e7 Ne8 Ra2 Kh5 Nc3 b1Q Ne4 g5 Bb2 g4 Qe2 d1Q+ Nd2 g3 Kc5 d4 Ra3 d3 Be5 b2 Rh3 Bg7 Rb3 Rb8 a8R Qbc1+ Rc3 Re1 Nf1 b1Q Qb2 d2 Ne2 g1Q Nd4 g2 Nf5 Qh2 Ra7 Rb3 Rd7 Rb4 Rd3 Rd4 Qb8 Qdc2 Qb2 d1R Qb8 Qg5 Qb2 Qe2 Ra3 Qe4 Qb8 Qef4 Qb2 Nf6 e8N Qgg3 Ned6 Ne8 Qb8 Qb7 Nc8 Qbc7 Qb2 Rd2 Qb8 Rb1 Qb2 Re4 Qb8 Ree1 Qb2 Kg6 h5+ Kg5 h6 Bh8 N1e3 Rg1 Nf1 Kg6 Qb8 Qdh4 Qb2 Kh5 Qb8 Rd7 h7 Bf6 h8Q+ Rh7 Bd6 Ba1 Qhb2 Qb7 Be5 Qb6+
N2R4/4b1r1/Qp2KB1B/3QpPQb/4r1r1/BP2r1qb/2k1bR1n/1b3q2 w - - 0 1 legal: proof: d4 f5 e4 fxe4 d5 b6 a4 Na6 d6 Nc5 a5 Nb7 a6 cxd6 axb7 d5 Be3 d4 Bh6 Nf6 Bc1 Ng8 f4 g5 Nd2 h5 Ndf3 g4 g3 Qc7 Bh3 gxf3 g4 Qd8 g5 Rh6 Be6 Rh8 Bg4 hxg4 Kd2 Kf7 b8B Ke6 h4 Kf5 c4 d5 g6 a5 g7 e5 h5 a4 b3 f2 h6 f1B c5 g3 h7 d3 Kc3 e3 c6 Ke4 c7 d4+ Kc4 g2 Rh5 d2+ Qe2 d1B Rf5 a3 Rf6 d3 Rc6 d2 Rf6 a2 Rh6 Qh4 Rb1 a1Q Nh3 g1R Rd6 Nh6 g8Q Ra7 Rd8 Bf5 c8Q Ng4 Qa6 Rg7 Rb2 Be7 Bd6 Nh2 Ba3 R1g5 Rc2 Qg3 Qf7 Bg2 Qg4 e2 Qg8 R5g6 Ng5+ Ke3 Qh5 e1R Ne6 Bgh3 Kd5 Bd3 f5 Bdg4 Bcb2 d1B Rf2 Re2 Qf7 Kd2 Nc7 B1c2 Qh4 Qf1 Na8 Bb1 Bc1+ Kc2 Bd2 Re3 Qe6 Bde2 Qd7 Rg5 Ke6 Rc3 Qd5 Bgf3 Bf4 Re3 Qh6 Rh5 Bg5 Rh4 Qh5 Rhe4 Qh4 Rhg8 Bh6 Rg5 h8B Bh5 Bf6 Rgg4 Qg5 Rg7
3Q2B1/1Bn3Pb/1pq1Nn1r/KPRQr2B/1r5n/k1np1r2/r6R/1R3q2 w - - 0 1 illegal: No possible last move, all moves rejected
7k/1Np4b/q4nP1/R2QbRq1/b1Qp1q2/2P1bQN1/1qBqr2R/5rK1 w - - 0 1 legal: proof: g4 e5 e4 g5 h4 a5 b4 axb4 d4 Nc6 h5 Nce7 f4 exd4 f5 Ng6 Bf4 gxf4 g5 f6 e5 fxe5 hxg6 e4 Kf2 b5 a4 d5 g7 Kf7 c3 h5 f6 h4 a5 f3 a6 h3 a7 b3 Qe1 e3+ Kg3 f2 Kh2 d3 Na3 d2 Rc1 d1Q Be2 f1Q Nc2 b4 Nf3 b2 Rb1 b3 Ng1 d4 Qf2 Qd2 Bb5 e2 Re1 b1Q Na1 b2 Qe3 Qf4+ Qg3 Bd7 Rc1 e1B+ Be2 Ba4 Nb3 Bf2 Nc5 Be3 Nb7 Bd6 Re1 Qg6 Ra1 b1Q Ra2 Rb8 a8Q Be5 Qa6 Qd5 Qc4 Re8 Ra1 Qh6 Ra3 Kg6 f7 Kh7 f8R Qa6 Rf5 Nf6 Ra2 Rhf8 Ra3 Qdc1 Bd3 Qbb2+ Bc2 Qd2+ Ne2 Qg8 Ra2 Rf7 Rha1 Re6 Kh1 h2 Qf3 Qd8 Kg2 h1B+ Kf1 Qe7 Ng3 Rf8 Qf2 Be4 Qf3 Kg6 g8Q+ Qg7 Qf7+ Kh7 Qd7 Kh8 Qd5 Rg8 Qf2 Qdc1+ Bd1 Qbb1 Qd7 Rb6 Ne2 Bac2 Qf3 Rb2 Qdd5 Qg6 Ra5 Ba4 Ra2 Rd2 Rc2 Qbb2 Kg2 Rg7 Kf1 Rh7 Ng3 Rdh2 Re2 Qcd2 Bc2 Rg2 Rf2 Rhh2 Re2 Qh4 Rf4 Qgh6 Qa2 Bh7 g6 Q6g5 Rf5 Qhf4 Qac4 Rh3 Rf2 Rgh2 Rg2 Rh6 Rg1 Re2 Rg2 Rh2 Rf2 Rh1+ Kg2 Rhe1 Kh2 Rf1 Rg2 Rff2 Kg1 Bd7 Rh2 Be8 Qd3 Ba4 Q3c4 Rf1+
2k1Nn2/r2N2q1/R2PQq1b/1QqN2q1/Qr4p1/3Bn2K/2P2rRp/2n4n w - - 0 1 illegal: No possible last move, all moves rejected
nn1n1R2/1Q1P2k1/3P1Nn1/2Q1bp2/K1NB1b2/2p2rqQ/2b5/qqqR1N2 w - - 0 1 illegal: No possible last move
4rqNK/1p4q1/4BR2/R4q2/1PQp4/n3Q1r1/RnnNPq2/1bNk2rn w - - 0 1 legal: proof: f4 a5 h4 c5 d4 cxd4 f5 g5 f6 gxh4 Kf2 a4 Ke1 exf6 Bh6 f5 Bc1 f4 b3 a3 Bb2 axb2 a4 Qc7 a5 Ra7 a6 Ra8 a7 Bd6 Nh3 Na6 Ng1 Rb8 a8Q Qd8 Qa7 Ra8 Qb8 Be5 Qxe5+ Qe7 Qb8 Qd8 Kf2 d3 Kf3 Ke7 Ke4 Kf6 g4 Kg5 Ke5 d5 c4 h5 c5 f5 c6 d2 c7 h3 b4 h2 Qe1 d1Q Bh3 f3 Qg3 f4 Qe1 f2 Qd2 f1Q Qd3 d4 Qc4 f3 Qc3 f2 Ra2 h4 Qd3 Nc5 Ra6 Qf8 Ra3 Bf5 Qa7 Re8+ Kd5 Kf4 c8R Na4 g5 Ne7+ Kd6 Rg8 Nc3 b1N g6 Nb2 Qc4 Ke3 Ke5 Kd2 Rc6 Nd5+ Re6 Bc2 g7 Ne3 Na2 Qde1 Qa4 Qg2 Qab3 f1Q Ra5 Na3 Bg4 h3 Nf3+ Kd1 Rg1 h1R Nd2 h2 Bh3 Qg6 Rg3 Qh6 Nc1 Nb5 Ra2 Rg1 Rg5 h1N Bf5 Rh8 g8N Na3 Qbd3 Bb1 Bh3 Nec2 Qe3 Q8f3 Rf5 Qh7 Kf6 Qd7 Bg4 Rh3 Ra6 Q1g2 Ra5 Qef2 Rf4 Qd6+ Kg7 Qfd5 Rf6 Qf8+ Kg6 Rf3 Kh7 Qe5 Be6 Qf5+ Kh8 Qgg6 Re5 Rfg3 Ra5 Qgg7#
3R4/BbNbnn1r/5b2/Q2B4/K3bRr1/3nP2p/P2RprQn/kn2Q3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 h5 dxe4 h6 c5 Na3 c4 Nb5 gxh6 Nd4 h5 Be2 h4 Bd3 Ra5 Bf1 Ra8 d3 e5 Kd2 e3+ Ke2 e4 Nh3 Qb6 Nb3 cxb3 Ng1 Qa7 Ke1 e2 Kd2 e1N Bb2 e3+ Kc1 e2 Ba3 Bd7 Kb2 Qe3 fxe3 Ra5 Kb1 Ra4 Bc1 Bc8 Kb2 Ra8 c4 Ke7 g4 Kd6 g5 Kc5 g6 h5 g7 b5 Bd2 f5 Bc3 h3 Qc1 f4 Nf3 h2 Ng5 h4 Nf3 h3 Ne5 f3 Bd2 f2 Qc2 Ra4 Qc3 Nd7 Ng6 Ne7 g8Q Rh7 Bg2 f1N Bd5 Bg7 Nf8 Ne5 Rd1 Bf6 Qg2 Bd7 Bc1 Nf7 Rd2 Bg7 Rg1 h1B Qe5 Nh2 Rf1 Bf6 d4+ Kb6 c5+ Ka5 c6 Nd3+ Kb1 b2 Kc2 b1R c7 Ra1 c8Q b3+ Kc3 b2 Kb3 b1B Ba3 b4 Qc1 Kb5 Ne6 Ka5 Rf4 Bc2+ Kc4 b3+ Kc3 b2 Bc5 Rb4 Qe1 Ka4 Ba7 Ka3 Qc7 Rd1 Qa5+ Ra4 Nc7 Rb1 Qef2 Rf1 Qfg1 Rf2 Qe1 Nb4 Kc4 b1N Kc5 Kb2 Kb6 Bf5 Kb5 Be6 Be4 Bf5 d5 Nd3 d6 Ka1 d7 Bg4 d8R Bd7+ Bc6 Rd4 Rf3 Rg4 Rf4 Nb2 Kb4 Be4 Bd5 Nd3+ Kb3 Bc8 Ka4 Bb7 Qgg1 Bf5 Qg3 Bhe4 Qg2 Bd7+
4b1QQ/1n2qq2/b3B3/r1p2pQ1/PP2n3/pNr3R1/k3n3/bqBKN1N1 w - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 h5 d5 cxd5 g6 Rh4 gxh5 Rh1 h4 b3 a4 Qc2 a3 Qc3 Ke7 Qb2 Ke8 Nc3 b5 Nb1 axb2 a4 b4 Ra3 bxa3 b4 Bg4 Rh2 Bh3 Rh1 Bc8 e4 Kd7 d4 Kd6 g4 c5 g5 h5 g6 f3 g7 f2+ Kd1 h3 Bc4 f1Q+ Kc2 h4 Nd2 b1Q+ Kc3 h2 Nh3 Nc6 Nb3 Ba6 Kd2 Qe7 Rg1 h1N Rg3 Nf6 g8Q Nd8 Ng1 h3 Qg5 Qf4+ Kd1 h2 Qg8 Nb7 e5+ Kc7 d6+ Kc6 e6 Rh3 d7 Ne4 d8Q Bg7 Qh8 f5 Qdg8 Qfc7 d5+ Kd6 Qh4 Ba1 Qhg5 Qf7 Qh8 Qce7 Qhg8 Ke5 d6 Ra7 d7 Kd6 Rf3 Nhg3 d8N h1B Nc6 Ne2 Rg3 Bf3 Ncd4 Bh5 Nc2 Kc6 Bb5+ Kd5 Bd7 Kc4 Ne1 Ra8 Rg2 Rc3 Rg3 Bb5 Bc8 Ra5 Qh8 Ba6 Bd7 Qef8 e7 Bg6 e8Q Q8e7 Qeg8 Bh5 Nd4 Bg6 Nb5 Kb3 Nd4+ Ka2 Nb3 Qff8 Bc8 Be8 Be6 Qff7
BR1K1r2/1Nrn2R1/Bb3pP1/2rq1qB1/4b1nQ/k3pP2/1R1p4/1n1Qb3 w - - 0 1 legal: proof: b4 c5 a4 g5 h4 b5 axb5 cxb4 Ra6 gxh4 Ra5 Qb6 Ra1 Qd8 e4 d5 d4 dxe4 Nd2 Bb7 Ndf3 Ba6 Ne5 Bc8 Nd3 exd3 Kd2 Kd7 Ke3 Kd6 Ke4 a5 c4 h5 g4 e5 f3 f6 b6 b3 g5 a4 g6 b2 b7 b1N d5 Kc5 d6 Kb4 Kd5 e4 c5 a3 c6 a2 d7 e3 Ke6 h3 c7 h2 Qc2 h4 Qc6 h3 Qd5 Ra7 Qg5 Bc5 Ne2 Rh7 Nd4 Rf7 Bd2+ Ka3 Nc6 Nh6 Qh4 Ng4 Na5 Bb6 Be1 Qg8 Rg1 h1R Rg2 h2 Rb2 Rg1 Kd6 h1Q d8Q Bf5 c8B Nd7 b8R Rc7 Bb7 Be4 Ba8 Qh3 Nb7 Rg2 Bg3 Rgc2 Bf4 R2c5 Bh6 Qh7 Bg5 Qh5 Bh6 Qf5 Bg5 Qh1 Be2 Qd1 Bf1 Nc3 Rc1 Nb1 Rc4 a1B Rd4 Rf8 Ke7 Rf7+ Ke8 Qb3 Rd6 Qc4 Re6 Qcd5 Re7 Nde5 Qd6 Nd7 Be2 Qb3 Kd8 Qbd5 Rb5 Bc3 Rb2 Rh7 Rg7 Be1 Qe5 d2 Ba6 Rc2 Qeg3 R2c3 Qg1 R3c5 Rg8 Rf7 Rg7 Bg3 Qc1 Be1 Qd1 Rf8+
5nq1/KqPpQBp1/2knR2R/5r2/8/P1rb1N2/2RQ1rpq/nb2NN2 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd3 f4 Nb1 h6 Qd1 Bd6 Be3 f2+ Kd2 f3 Bg5 Bf4+ gxf4 hxg5 f5 Kf7 Kd3 Kf8 Kd2 Ke8 Kd3 b5 c4 g4 e4 g3 h4 g2 c5 b3 f6 b2 a3 b4 Kc4 d3 Kb5 d2 e5 b3 e6 Ra5+ Kb4 Na6+ Kc4 Ne7 c6 Ng6 h5 Nb4 e7 Nc2 c7 Rf5 h6 Nf8 Ra2 Na1 h7 Ba6+ Kb4 Qc8 Bc4 f1R Rh6 f2 Nf3 Qd8 Qc1 d1Q Ne1 Qh5 Nd2 b1Q Rc2 b2 Ka4 Bb5+ Ka5 Qh2 Kb6 Qa8 Bg8 Bd3 Bc4 Qd5 Ka7 Qa2 Bb3 b1B Bc4 Kf7 e8R Qb2 Re5 Qe6 Re2 Ke8 f7+ Ke7 Re5 Kd6 Qd1 Kc6 Qe2 Ng6 f8Q Qg8 Qe7 Qb4 Nef3 Rc1 Ne1 f1N Qd1 Ng3 Nf1 Qb2 Qd2 Ne4 Re6+ Nd6 Bb3+ Qc3 Ba2 Qc4 Bb3 Qc8 Ba2 Rhf8 h8N Rf2 Bb3 R8f5 Nf7 Nf8 Ng5 Qa6+ Kb8 Qb5+ Ka7 Qd5 Ngf3 Qe4 Rb2 Rc3 Rc2 Qcd5 Re5 Qg8 Bf7 Qb4 Ree6 Qb7#
rR1q1N1b/1b1BrRRp/2ppb3/1b2n2b/N3K3/Pn3P2/N2Q4/k2n1Q2 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 a5 b4 axb4 h4 gxh4 d4 Nc6 c5 Nb8 c6 dxc6 d5 Qd6 Ne2 Qd7 Ng1 Qd8 d6 Bg7 d7+ Kf7 Bf4 Bf8 Bd6 cxd6 Ke2 Kf6 Kd3 Ke5 g4 b5 g5 b3 f6 b4 g6 h3 f7 b2 a3 h2 g7 b3 Nd2 b1B+ Ke3 b2 Nb3 Na6 Bb5 Bd3 Qf1 b1B Qe1 Nf6 g8Q Nd5+ Kf3+ Ne3 Qg4 Bg7 f8N Nc5 Qh3 Ba2 Qc1 Nd1 Qh4 Bb7 Ba6 Bb5 Qch6 e6 Nc1 Nb3 Qh3 Kd4 Qg2 Kc3 Ke4 Kb2 Nge2 e5 Rg1 h1B Nc3 Rg8 Qf3 Bh8 Rg7 Bg2 Rf7 Rg7 Qh2 Bgf1 Qff4 Bfe2 Na4+ Kc2 Qh3 Bg4 f3 Bh5 Nb6 Kb2 Qf1 Rg6 Qe3 Re6 Qee1 Re7 Qb4 Qb8 d8R Qc7 Rb8 Qd8 Kf5 e4 Na4+ Kc2 Qbe1 e3 Qa5 e2 Kf4 Rc7 Ke4 e1N Qb4 Nd3 Qa5 Bb1 Na2 Ne5 Qb4 Re7 Qa5 Bc8 Qb4 Be6 Bc8 Ba6 Bd7 Bb7 N2c3 Ba2 Rb1 Bc4 Rb2+ Kc1 Rg2 Bb5 Rgg7 Kc2 Nb6 Kb2 Nba4+ Ka1 Qd4 Nc1 Qd2 Be6 Na2 Nb3
B1Q3N1/5kpn/n2nb1N1/2B2B2/1r3QbP/q2p2PR/2n1rp1b/2n3QK w - - 0 1 legal: proof: d4 b5 b4 h5 a4 c5 f4 cxd4 f5 h4 g3 h3 f6 a5 axb5 axb4 Ra3 exf6 Rf3 f5 Rf2 f4 Rg2 hxg2 Kf2 d5 h4 f5 c4 f3 e4 b3 e5 d3 b6 f4 e6 d2 b7 b2 c5 d4 c6 d3 e7 Kf7 c7 Ra4 Be2 Qd6 Qf1 d1B Na3 b1N Nc2 Qa3 Be3 Be6 c8Q Rb4 Bd2 Na6 b8Q Nf6 Be3 Nh7 Nh3 g1N Nd4 Nd2 Nc6 Nc4 Bc5 Nd6 Qg2 Rg8 Kf1 f2 Bg4 Bf3 Bf5 Ne2 Qg1 Bg4 Kg2 f1N Qbc7 Nc1 e8B+ Kf6 Bd7 Kf7 Ne7 Ne3+ Kh2 f3 Nf4 Nc2 Nfg6 Rh8 Ng8 Be7 Be4 Bd8 Q7b8 Bb6 Ba8 Ba7 Nf6 Re8 Ng8 Bb3 Bf5 Re2+ Qg2 Ba2 Kg1 Be6 Rh3 Ne4 Qf4 Nd6 Kh1 Bb6 Bd4 Bc5 Qg1 Ba7 Bf6 Bd4 Be7 Bb6 Qf1 Bg1 Bf8 Bh2 Qg1 f2 Be7 Nb7 Bc5 Nd6
bb1Qn2Q/3bN3/4rN2/2bnn1r1/pNK1R1PQ/1Ppp1r2/2R5/3k1q1B w - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 b5 axb5 g5 Bd2 gxh4 Bc3 dxc3 Ke2 Kf7 f4 Kg6 g4 a5 c5 h5 c6 d5 c7 e5 b3 h3 b6 h2 b7 a4 f5+ Kg5 f6 Kf4 f7 e3 Kd3 h4 Qe2 h3 Bg2 e4+ Kd4 Rh6 Qc2 e2 Qc1+ e3 Qa3 e1N Ra2 e2 Be4 Nf6 Qe7 Nc6+ Kc5 Ke3 b8Q d4 Qb6 d3 Nd2 Bd7 c8N Ne5 Ra1 Ra5+ Qb5 Nc2 Bd5 e1B Rc1 Bg3 Ne4 Ne8 Nf3 Ke2 Nf6 Nb4 Ne1 Qc7+ Bc6 Nd5 Rc2+ Kd1 Kd4 Qb7 Qb6 Qa8 Rf1 h1B Rf4 h2 Qbd8 Bg2 Re4 h1R Bb7 Rf1 Bc6 Rf3 Bb7 Ng6 Kc4 Bb8 Bc6 Qa7 Bb7 Qg1 Ba8 Bg7 f8Q Qf1 Qh8 Bf8 Qeh7 Bc5 Ne7 Rh5 Qh6 Rg5 Qh4 Ra7 Rce2 Rc7 Nc2 Rc6 Nb4 Re6 Rc2 Bh1 Bc6 Ne5+ Kb5 Nf4 Re3 Rf2 Ree2 Neg6 Kc4 Bf3 Bb5 Ba8 Bc6 Ne5+ Kb5 Bc8 Bh1 Nd5 Re3 Rf3 Re4 Nc6 Kc4 Bd7 Q8h5 Bcd6 Qh7 Bc5 Qh8 Ne5+
BQrb4/p1P4b/3r1n2/2KP3k/1B1nbR2/p1B2r1N/p1QR2n1/4Qr1q w - - 0 1 illegal: No proof kernel
5B1Q/K1r1b3/B6R/nP2P1p1/1n1r2BN/1p1R4/pR2r2Q/1qkrr1qb w - - 0 1 legal: proof: b4 a5 g4 d5 f4 h5 a4 hxg4 c4 e5 cxd5 exf4 Qb3 b6 b5 Rh7 Qb4 Rh8 Na3 Rh5 Nc4 axb4 a5 Rh7 a6 Rh8 Na5 bxa5 Kf2 Ke7 h4 Kd6 e4 Kc5 h5 Kd4 e5 c5 d3 Kc3 a7 Kc2 h6 f5 h7 g5 d4 f3 Ke3 a4 d6 b3 d7 c4 d5 a3 Kd4 f2 d6 f4 Kc5 g3 Nh3 f3 Nf4 g2 Rh5 g1Q Bb2 c3 Rh1 a2 Ne2 Nf6 Bh3 Nc6 Rb1 Nd5 Ba3 f1R+ Nd4+ Kd2 Bb4 f2 Nf5 Bb7 Rb2+ Kd1 Rh2 c2 Ba3 Qe8 d8Q Qg6 Bg4+ Kd2 Qf6 Rd8 a8B Na5 Rh4 Bc6 Bb7 Rd1 Ba6 Ba8 Qe7 Bc6 d7 f1R+ Ne3 Rfe1 Rh3 Nc3 Kb6 Bh1+ Ka7 Nd5 Qf7 Qd3 Qf4 Qe4 Bc5 Nb4 Qg3 Bd6 Ng2 Rhf8 h8Q Rf2 Rh6 Rfe2 Nh4 Qd3 Rb1 c1R Qh2 Rc4 Rb2+ Kc1 Be6 Qb1 Bg4 Rc8 d8R Bf8 Rd3 Rd4 Be7 Rcc2 Bf6 Rcc4 Bg7 Be7 Bf8 Rc7+
1bRnr1nq/3qN1p1/6K1/NQ2Nb2/2P1pP2/7n/1B3np1/1B1QrknB w - - 0 1 legal: proof: b4 b5 e4 c5 d4 cxd4 g4 h5 a3 hxg4 Qf3 f6 e5 f5 Qe4 e6 a4 fxe4 axb5 d3 Ra6 Rh3 Rd6 Rh8 Rd5 exd5 Bg2 d4 Bh3 Rh6 Bf1 Rh8 Kd2 Ke7 f4 Ke6 c4 Kf5 h4 d5 h5 a5 b6 g3 h6 Kg4 h7 a4 b5 a3 b7 a2 e6 a1N e7 Nc6 b8N Bf5 e8B Nc2 b6 Ra1 b7 Bd6 Bb2 Ne1 Nf3 Qh4 Rh3 Nd8 Nc6 Bb8 Bg2 Qh5 Bh1 g2 Rh4+ Kg3 Na5 Kf2 Ba4 Kf1 Ne5 Qh6 Bc2 Nf3+ Kc1 Ng1 Kd2 Qh5 Nc3 Re1 Bb1 Qe8 Rh6 Qh5 Rc6 Qe8 Rc8 Qf8 Nd1 Qe8 Kc1 d2+ Kc2 d3+ Kc3 Qh5 Kd4 Qh6 Nf2 d1N Nfg4 d2 Ng6 Nf2 Ne7 d1N Ne5 Nfh3 Ne5c6 Bc7 b8Q Ndf2 Qb5 Bb8 Ne5 Qh5 Kc5 d4 Kd5 d3 Kd4 Nh6 Kd5 Rf8 h8Q Ng8 Qh6 d2 Qd6 Qh8 Qdd7 Bh7 Qg4 Re8 Qd1 Nc6 Ke6 Bg6 Qf3 Bf5+ Kf7 d1Q Qfb3 Qd7 Qd1 Be6+ Kg6 Nd8 Qd4 Bg4 Qd1 Bf5+
Q4n1B/n2Np3/2pp4/r2N3n/4Pb1R/1n3bk1/Pq3RnR/2QQ1Krq w - - 0 1 illegal: No possible last move
r1b5/1R2q1r1/1RQ1prNB/k5qp/q1P1N3/p1bP1RK1/2Q4n/q1n4N w - - 0 1 legal: proof: e4 g5 b4 f5 h4 gxh4 a4 b5 axb5 fxe4 Qg4 c6 Qd1 c5 c3 cxb4 Qg4 d5 Bd3 d4 Bc2 d3 Qd1 dxc2 f4 Kd7 Kf2 Kc7 g4 Kb6 f5 h5 f6 a5 d3 h3 c4 b3 g5 e6 g6 e3+ Kg3 b2 f7 a4 g7 e2 Rh2 e1R Kf4 a3 Nd2 b1Q Bb2 c1Q Kg3 Rh7 Ne4 Qe7 Qc2 Na6 Ne2 Nh6 g8Q Ng4 Rf2 h2 Rf3 h1Q Bg7 Nb4 Bh6 Ka5 b6 Qcg5 b7 Qb3 b8R Qa4 Rb1 Rf1 Rb6 Bg7 f8N Na2 Ng6 Bc3 Qe8 Rg7 Qc6 Nc1 Rb7 Rf2 R1b6 Qf1 Nef4 Qh1 Nh3 Rf1 Nhf2 Nh2+ Kh3 Qhg1 Nh1 Rf2 Rg3 Rf6 Rf3 Qgb5 Kh4 Qb1 Kh3 Qa1 Kh4 Qe3 Kg3 Qg5+
4bN1q/Rb1B3q/2Pr3n/1N3p1Q/PkpBn2q/1r2qN2/1p5K/3r2BQ w - - 0 1 legal: proof: f4 a5 b4 c5 d4 g5 h4 gxh4 a4 e5 c4 exf4 Rh2 b5 Rh1 bxc4 b5 c3 Ra2 c4 Rb2 Bc5 Rb4 axb4 dxc5 Qf6 Qd3 Qb6 Qd1 Qd8 Kf2 Ke7 g4 h5 Kg2 f5 e4 d5 c6 Kd6 g5 Kc5 e5 h3+ Kh2 h4 b6 f3 g6 f2 g7 b3 e6 b2 e7 d4 e8Q c2 b7 d3 Nc3 d2 Be2 f1R Bh5 Na6 b8B Rh6 Be5 Rd6 Nf3 Rb8 Rg1 Rb3 Rg3 Kb4 Nb5 Nc5 Bd4 Ne4 Bf7 Qg5 Be6 Qh5 Rg1 Qh8 Kh1 h2 Qe1 Ba6 Qf2 Rd1 Qf1 Bc8 Kg2 Ba6 Kh3 Bc8 Qg2 h1Q+ Qh2 Ba6 Rg6 Bc8 Rf6 Ba6 Rf7 Qe1 Ra7 Bb7 Bg1 Qf2 Bc8 Qe1 Kg2 h3+ Kh1 Qf2 Bd7 Qe1 Qg2 h2 Qeg6 Qg3 Qh7 Qg6 Qh5 Nh6 g8N Qgg7 Ne7 Qgh7 Qg7 Nc3 Kg2 h1Q+ Kg3 Qh4+ Kg2 Rd5 Ng6 Ne4 Nf8 Rd6 Qgg6 Q4f6 Qh1 Qh4 Ng5 Rf1 Qe8 d1B Bce3 c1Q Bd4 Bh5 Nf3 Rd1 Qf7 Qe3 Qg6 Qhg5+ Kh2 Qgf6 Qg5 Be8 Qh5 Qh4+
1rrbQ3/6qP/1kp2RQ1/NbNQ1qr1/2r1R1pn/1p2P1Bq/7n/2RK4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 d4 Kd7 a4 f5 h4 g5 h5 b5 h6 c6 e3 Kc7 h7 b3 a5 b4 a6 b2 d6+ Kb6 d5 b3 d7 f4 a7 f3 d6 f2+ Kd2 f1Q Rh4 Qdf6 d8R Qg7 d7 Nh6 Nh3 g1R Rg4 g2 Na3 b1Q Qc2 Ba6 Nf2 Bb5 Nd3 Be7 Rf8 Bd8 Re4 Nf5 Nc5 Nh4 Rf6 Rh1 Bb2 g1R Qd3 Qh3 Be5 g4 Bf4 Rc1 Bg3 Rc4 Qc2 Qbf1 Rc1 Qf5 Qd3 Rh2+ Kd1 Ra2 Nb1 Ra5 Nd2 Na6 Qd6 Rb8 a8Q Nc7 Qd5 Rc8 Qf7 Ne6 Qg6 Rc7 Qc8 Ng5 Qb8+ Rb7 Qe5 Rb8 Qee8 Bc7 d8Q Ngf3 Qd5 Nh2 Qe7 Rhc8 Qf8 Rca4 Qfe8 Bd8 Nc4+ Ka7 Nd6 Rc4 Ndb7 Kb6 Qdg8 Ra7 Na5 Re7 Qg8f7 Re5 Qd5 Qf4 Be1 Rg5 Bg3 Qf5
q4b2/n2bk2p/Q1Q1bpr1/2KQ2p1/RP2b2r/1N5B/3P3q/1R1RnNq1 w - - 0 1 illegal: No proof kernel
Nq5Q/2Bb1PQ1/kqPb4/1b3bN1/2pR2pB/n4r2/1p5K/n1B1Nrn1 w - - 0 1 legal: proof: g4 c5 c4 d5 a4 h5 b4 hxg4 e4 f5 exf5 a6 Qc2 cxb4 c5 b3 Bb5+ axb5 Qd1 b4 Ra2 Nc6 Rc2 Nb8 Rc4 dxc4 Kf1 Kd7 Kg2 Kc7 h4 e5 f4 b5 d4 Kb7 a5 g5 c6+ Ka6 d5 e4 f6 g3 d6 g4 h5 b2 d7 b3 f5 e3 f7 e2 h6 e1Q h7 b4 f6 Qe3 Qd4 Ne7 Qd1 Nf5 Qf1 Qeb6 Bh6 Nd4 Bg7 Nc2 Qd1 Na1 Nd2 b1B Nh3 b2 Bh6 b3 Ng5 Bc2 Ndf3 b1B Qd4 b2 Rd1 Ba4 Ne1 Bd6 f8B Bb5 f7 Bf5 Qg7 Qe8 d8B Bcd7 Rd4 Qe5 Kg1 g2 Bfe7 Qh2+ Kf2 g1N+ Kf1 Qf4+ Kg2 Re8 Bf6 Re3 h8Q Rf3 Bc7 Ka7 Be5 Rf1 Ngf3 Na6 Bf6 Qc5 Bhg5 Be7 Bce5 Nb4 a6 Nbc2 Bd6 Qfe5 Bc1 Qb6 Bh4 Re8 Ng5 Na3 Kh1 Qg3 Be5 Bb4 Bef4 Re3 Bd6 Qe5 Kg2 Qe8 Kh2 Qeb8 Bf4 Ref3 Bd6 Q6c7 Bdf4 Kb6 a7 Ka6 a8N Qcb6 Bc7 Bd6+
3n1r2/2r1Pn2/B1p1b1pQ/Q6N/1r2b2k/KqPq3q/p2RN1R1/4q1QN w - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 h5 a5 hxg4 a6 bxa6 Ra4 a5 Ra3 a4 Ra1 a3 f4 e5 b3 e3 Qf3 e4 Qd1 Bd6 Bb2 Be5 fxe5 axb2 h4 Ke7 d4 f5 d5 a5 b4 g3 e6 Kf6 b5 e2 Kd2 e1R Kc3 g6 Kb3 g2 d6 f4 b6 e3 e7 e2 h5 Kg5 b7 a4+ Kb4 f3 c3 f2 h6 a3 d7 a2 h7 Nh6 Nd2 b1B Rh2 Rf8 h8Q Ra7 Ne4+ Kg4 Qdd4 Nf7 Ng3+ Be4 Qh6 Nc6+ Kb3 Rc1 b8N e1Q Ba6 f1Q Ka3 Rb1 Nh1 Rb4 Rd1 Qc4 Ne2 g1Q Rd2 Qgg3 Rg2 Qd5 Qhg7 Kh4 Qe3 Qh3 Qg1 Qe8 d8Q Be6 Nd7 Qdd3 Nf6 Rab7 Qd6 Ncd8 Qe5 Qc6 Qa5 Qcc4 Nh5 c6 Qh8 Rc7 Qh6 Qb3#
1qqR1Rb1/P2qNq1N/2b3pk/p1K1Q3/Rr1rQ1Bp/P4N1n/4b3/4n3 w - - 0 1 legal: proof: d4 e5 f4 exf4 h4 c5 h5 cxd4 g4 a6 b4 Bc5 b5 Ba7 b6 Qg5 Be3 Qd8 Bf2 h6 g5 hxg5 Bh4 gxh4 bxa7 Qe7 Qd3 Qf6 Qd1 Qd8 Kd2 Kf8 Kd3 f5 Kc4 b5+ Kb4 d5 e4 d3 c4 g6 h6 d4 c5 d2 a3 d3 e5 a5+ Kb3 f3 e6 f2 h7 Kg7 e7 b4 Kc4 b3 e8N+ Kh6 c6 b2 c7 f4 Nh3 f3 Ra2 Be6+ Kc5 Qc8 Rg1 Nf6 Qc2 d1Q Nd6 d2 Qb3 Nd5 Qc4 Nd7+ Kb5 Ne5 Qd3 Rd8 Ng5 Bg8 Be2 f1B Kc5 f2 Qd4 Nf4 Bg4 Bg2 Qe4 f1Q Ra1 Nf3 h8Q+ Bh7 Ra2 Ne1 Qhe5 Bg8 Nh7 Rb8 Ra1 Rb4 Ra2 Qf5 Nc8 Nh3 Ne7 Rdd4 c8R Qe6 Rf8 Qff7 Rf1 Bh1 Rf4 Qc8+ Nc6 Qa4 Ra1 d1B Nd2 b1Q Nf3 Qb2 Rb1 Be2 Rd1 Qb8 Ne7 Qd7 Rd8 Qba2 Rc1 Qfe8 Rf8 Qaf7 Rc4 Rb2 Ra4 Rbb4 Nd2 Bg2 Q4f5 Bc6 Qfe4 Qdc8 Nf3 Qed7
r1k1nKR1/PR6/3QP1Q1/2np3N/5p2/bpqN3r/4nrQr/b2Bq1N1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h6 Qd3 b6 Be3 Bb7 Nb1 Be4 Bg5 f4 Qd1 Bf5 gxf5 hxg5 Kf2 d5 h4 Kd7 e4 b3 a4 d3 c4 b2 f6 d2 f7 g4 a5 g5 a6 b5 c5 b4 e5 b3 e6+ Kc7 c6 Qd7 a7 Nh6 h5 Ng8 h6 Qc8 h7 Qa6 Qe2 d1Q Nc3 b1N Ne4 Ba3 f8Q Qad3 Qd6+ Kc8 c7 Nd7 Ng3 Nc5 Nh5 Qc3 Qd2 Qdc1 Be2 Nf6 Bd1 Ne8 Qe2 Qe5 Qc2 Nc3 Qg6 Ne2 Rh4 Qcc3 Rh3 Rf8 h8N Rg8 Nf7 Rh8 Ra2 Qe4 Ne5 g3+ Kf1 g2+ Kf2 Qb1 Nd3 g4 Rg3 Qbc1 Rc2 Q1d2 Nf6 Rh3 Nh5 Qb4 Rc4 Qbc3 Rb4 Rh2 Rb7 Qdc1 Nh3 g1R+ Rg2 Rgh1 Ng1 Q3a1 Ke1 Qcb1 Kd2 f2 Rg3 f1R Rg2 Qg7 Rg3 Nd4+ Kc3 Rff2 Rg2 Rh3 Rg3 R1h2 Rg2 Bb2+ Kb4 Ne2 Kb5 g3 Kc6 Qa1 Qe7 Nf6 Kd6 Qh8 Qf8+ Ne8+ Ke7 Ba3 Kf7 Qac3 Qd6 Qhe5 Kf8 Rf1 Rf2 g2 Rf3 Qe4 Rg3 Qeb4 Qh7 Qe1 Rg8 Qbc3 Qg6 Rf2 Rb4 Qc4 Qh7 Ng3 Qhe7 Na6 Qg5 Rb2 Ne2 g1B Qg6 Bd4 Ra4 Kb7 Ng1 Qc6 Rc4 Ra2 Rc5 Ba1 c8Q+ Kb6 Qcd8+ Kb7 Rc1 Raf2 Qdg5 Ne2 Qg2 Kc8 Rc5 Qc7 Rb5 Qcc3 Rb7 Nc5
R2bn3/p4Q1r/Kp1k1N2/P1r1bbn1/N1b5/1qPp1Q1n/1R1QB3/5n1R w - - 0 1 legal: proof: g4 e5 e4 f5 f4 fxe4 d4 exd4 b4 c5 bxc5 h6 g5 g6 f5 gxf5 g6 Qa5+ Kf2 Qd8 Bg5 hxg5 Ke1 f4 Ke2 Ke7 h4 d5 a4 d3+ Kd2 g4 Kc3 b6 Kb4 e3 Kb5 g3 c6 g2 a5 e2 h5 e1B c7 d4 c3 d2 g7 d3 h6 f3 h7 f2 Ne2 g1N Ra3 Kd6 Rb3 Nh3 Rb2 Nc6 Nf4 Bf5 c8R Ne5 Qc2 d1B Rb8 Nf3 Nd2 Nf6 g8Q Bg7 Ka6 Nfg5 Nb3 Ne8 Nd5 Be5 Be2 f1N Qd2 Bh4 Nc5 Bb3 Nf6 Bf7 Na4 Bc4+ Rb5 Qc7 Qf7 Qc5 Rc8 Qa3 Rb8 Qb3 Rc8 Rg8 h8Q Rg7 Qhh5 Rh7 Qg4 Rb8 Qf3 Rb7 Ra8 Rc7 Nb2 Rc5 Na4 Ne4 Nd7 Bd8 Nf6 Bce6 Rb4 Neg5 Rb5 Qd1 Rb1 Qb3 Rb2 Bc4+
2N1bQ2/2QBr3/r4qn1/qK1pR1RQ/2B1pnn1/2P4p/1P2n1kB/1r5n w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 Bd2 e5 Bc1 e4 g4 Qc7 h4 Kd8 f5 Nf6 Nc3 Nh5 Nd5 Nf6 Nf4 gxf4 g5 Ke8 g6 Bh6 Rb1 Ng8 Ra1 Bg5 hxg5 Qd8 Ke2 h5 g7 Kf7 c3 d5 g6+ Kf6 Bh3 Ke5 f6 a5 f7 e3 Kd3 f3 f8Q h4 Ra2 a3 Bf5 Kf4 Bg4+ Kg3 Qf5 e5 Qd2 e2 Qe4 f2 Bd7 e1N+ Ke2 f1N Ra1 h3 Qee3+ Kg2 Qd1 a4 Qb3 d3+ Kd1 d2 Qf4 a2 Ne2 a3 Nd4 Ne7 g8Q Nbc6 g7 Ng3 Qgf8 Ng6 g8B Ne2 Nf5 Qf6 Bh7 Nd3 Kc2 d1N Ne7 N1f2 Re1 Ra6 Qbc4 Nh1 Kb3 Rg8 Q4h6 Rg7 Qh5 Ndf4 Bd2 Bb7 Nc8 Re7 Be3 Ba8 Bg1 Bb7 Rab1 a1R Bh2 a2 Rbd1 Rb1 Rd4 Na5+ Ka4 a1Q+ Kb5 Qa3 Qc6 Nc4 Qc7 Ne3 Rd3 Ng4 Rf3 Nh4 Bd3 Nhg6 Bc4 e4 Ref1 Nd3 Rf5 Ndf4 Rg5 Qa2 Rf3 Bc6+ Kb4 Ne6 Rff5 Ne6f4 Re5 Bb5 Bf5 Be8 Bd7 Qa1 Kb5 Qa5+
1b1QN3/2b1b1Nr/2qn1pB1/n2NqP1Q/2q3bQ/1Rp1P2p/B2k3K/7b w - - 0 1 legal: proof: d4 g5 c4 d5 f4 a5 g4 e5 h4 b6 b4 Bg7 f5 Bf8 Bf4 gxf4 g5 Ra6 a4 Ra7 Ra3 Rb7 Rd3 dxc4 d5 b5 Rd4 Rb6 h5 Rg6 hxg6 bxa4 Rh4 exd4 Rh3 Bd7 Rh1 Bc8 Kf2 Ke7 Kg2 Kd6 b5 Ke5 b6 Ke4 d6 Ke3 b7 h5 d7 c5 g7 d3 g6 d2 Qc1 h4 Qd1 f3+ Kh2 c3 Qb3 d1B Qb5 f2 Qb3 h3 Qb2 a3 Nf3 a2 Qb6 a1Q Ng1 a4 Kg3 f6 Nd2 c2 Ne4 c1B Qb4 a3 Nd6 a2 Qh4 c4 Kh2 Qb6 d8N Nh6 g8B Be7 g7 Kd2 Ne6 Qc6 Ne8 Nf7 Bh7 Nd6 Bg6 Rh7 g8Q Bd7 Bg2 f1Q Bd5 Ba3 e3 Bg4 Ne2 Qe5+ N2f4 a1B Qf7 Bd4 N6g7 c3 Nh5 Bb6 Ba2 Bc7 Nhg7 Qfc4 Rb1 Bc5 Rb3 Ba7 Qf8 Be6 Qh8 Bd5 Qh5 Bh1 Qh4 Nd7 b8Q Nc5 Qd8 Nb7 Qh5 Na5 Qh4 Qec5 Nd5 Bab8 Qh5 Q5b5 Qh4 Rh5 Qh6 Qbc5 Q6g5 Rh7 Qhh5 Q5d4 Qgh4 Qe5+
B1QQ4/K4bpB/2pBrr1k/2Pq1r1q/nn2N3/6rn/NN1Prp2/R7 w - - 0 1 legal: proof: e4 a5 b4 axb4 Ne2 d5 Ng1 dxe4 Ke2 f5 f4 exf3+ Ke3 f2 g3 f4+ Ke4 f3 Kf4 Ra4 Ke3 Ra8 a4 h5 Ra3 e6 Rc3 Be7 Rc4 Bd6 Rg4 Bf4+ gxf4 hxg4 h4 Kf7 c4 Kg6 c5 b5 h5+ Kh6 a5 g3 a6 c6 f5 g2 a7 b3 f6 b2 f7 e5 f8N b4 Ke4 b3 Nd7 Ne7 Qe2 Na6 Qc4 Rf8 Qg8 Rf5 Bd3 f1R Nb6 Be6 Na4 Nd5 Nbc3 b1Q Qf8 b2 Nge2 g1N Ng3 Bf7 Na2 Nab4 Qg8 Qd7 Qd8 Nh3 Bc2 Rb8 a8B Nb6 Bd3 Qc2 Rg1 b1R Bb2 f2 Bc3 Qd1 Nb2 Na4 Rh1 Kh7 h6 Rg1 Bc2 Kg6 h7 Qh5 h8Q Rg2 Bd4 Re1+ Be3 Re2 Ra1 Rb7 Qc8 Qd6 Qhd8 Re7 Bb1 Re6 Bd3 Ref6 Bb1 Nd5 Kd3 e4+ Kc4 Qd7 Bf4 e3 Ne4 Rg3 Bd6 Kh6 Bd3 Ne7+ Kb4 Nd5+ Ka5 Nb4 Bf8 Qd5 Bd6 Re1 Bb1 e2 Bc2 Rc1 Bb1 e1R Bc2 Re2 Bd3 Nc3 Kb6 Rce1 Ka7 Na4 Ng5 Rff3 Bh7 R3f4 Ne4 R4f5 Nec3 Ree6 Ne4 Re2
1BBn2N1/1n1P2n1/1P1Rr3/n3Q1B1/1r1N1p2/pQn5/q3QKpr/2kb1q2 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 bxa4 g4 f5 c4 dxc4 Ra3 h5 Rg3 e6 g5 Bc5 Rg4 hxg4 Nf3 Bd4 Ng1 Bf6 gxf6 e5 Ba3 exf4 Bb2 Nd7 Bc1 Nb8 d4 Kf7 h4 Kg6 e4 a5 f7 c5 f8B c3 d5 c4 e5 c2 h5+ Kg5 d6 a3 b5 g3 e6 a4 b6 c3 e7 a2 e8Q a1Q h6 g2 h7 a3 Bc4 Nf6 Be6 Nh5 Qf3 Qa2 Rh2 Ra4 Qfc6 Rb4 Nd2 f3 Rh3 Kf4 Qc5 g5 Qcb5 Ke3 Qa6 g4 Qab5 f4 Qbc6 g3 Qc7 Qh4 Qef7 Ng7 Qe8 Nc6 Qa7 Nd8 Ne2 g1N Qa5 g2+ Ng3 Ne2 Bb2 c1N Qd5 c2 Bf6 Nc3 Bg5 Nb3 Ne4 c1N Nf6 Na5 Qb3 Nab7 Ng8 Bd7 Rh2 Ba4 Bc8+ Kd3 d7 Qh5 Qbe6 Kc2 Ne2 Nb3 Kf2 N3a5 Nd4+ Kc1+ Qe2 Bd1 Qe6 Qh3 Bd6 Qh6 Rh3 Qh5 Rg3 Qh2 Bb8 Qh1 Nf6 Re8 Qb3 Re6 h8Q Qh7 Kg1 Qhb1 Ng8 f2+ Kh2 f1R Rd3 Rf3 Kg1 Rh3 Kf2 Rh2 Rd2 Nh5 Qhe5 Ng7 Nc6 Qh7 Rd6 Qh4+ Kf3 Qe1 Nd4 Qh1 Kf2 Qf1#
BQ3r1R/2N1Nb2/7p/2P3qQ/2pr3p/1rb1b3/RRb1P1K1/qqNk2n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 e5 c5 exf4 c6 bxc6 Bb2 c5 Bc1 c4 d4 c5 b5 c3 Bb2 c4 Ba3 Na6 Bb4 Nc5 dxc5 axb4 Kf2 Ke7 g4 Ke6 a4 Ke5 g5 Ke4 b6 f5 g6 d5 b7 c2 b8N c1B g7 h6 a5 f3 a6 d4 a7 b3 Qc2+ d3 Na3 b2 Na6 b1Q Qb2 f4 Qb8 d2 Qb2 d1B Nb8 Bc2 Qa2 Qg5 Nh3 Ne7 g8R Be6 Bg2 Bf7 Nc6 Nd5 Rg7 Rd8 Rg8 Bg7 a8Q Bc3 Kg1 Ke3 Qb3 Kd2 Ne7 Kd1 Ra2 f2+ Kh2+ f1Q Qbb8 f3 Nb5 f2 Nf4 Rd7 Nd3 Nf4 Qf3 Nh3 Qh5 Be3 Nc1 Ng1 Nc7 Rd4 Ba8 Qe1 Rc8 f1R Rb2 Rh7 Rh8 Rg7 Ra2 Rg8 Rb2 Rf8 Ra2 Rf6 Rb2 Rb6 Ra2 Qf6 Kg2 Rb3 Rb2 Qd2 Rh3 Qa6 Rf3 Qa5 Rf6 Qaa1 Ra6 Qe1 Raa2 Qg3+ Kf1 Qf4+ Kg2 Qg5+
Q1r5/7q/nNqb2P1/1p1q1Brk/2bqPp2/1p4Q1/4R1RN/1RKr2bQ w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 g5 e5 g6 fxg6 Bd2 g5 Bc1 g4 f5 g5 h3 g3 Bg2 Nc6 Bf4 exf4 Bf1 Ne5 h4 g4 Rh3 Nf7 Rh1 Ng5 hxg5 Qa5 Na3 Qc7 Nb1 Qd8 Kd2 Kf7 a4 d5 e4 h5 c4 b5 c5 d3 a5 d4 c6 h4 c7 h3 a6 g2 a7 b3 f6 Kg6 f7 h2 Qe1 g3 Ne2 g1Q Bg2 Bd6 f8Q Qf6 Ra5 Rh5 Ra4 Be6 c8R Bc4 Na3 Ne7 Kc1 Nc6 Qh8 Nb8 Bh3 g2 Ng3 Na6 Nf1 Qe6 Rc7 Rc8 a8Q Qd7 Qe3 Qc6 Qg3 Qf2 Rg1 h1Q Bd7 Qh3 Nh2 Qh4 Re1 g1B Re2 Qh3 Be6 Qf5 Re7 Qf7 Re8 Qg7 Rg8 d2+ Kb2 d1Q Bf5+ Kf7 Ra5 Qh7 Ra4 d3 Ra5 Be6 Nc4 d2 Nb6 Bc4 Ra1 Qfc5 Rb1 Q5d5 Qhc3 Qd4 Qf3 Qdd5 Qh1 Qd4 g6+ Kf6 Rd8 Kg5 Rd7 Qdd5 Qg3+ Kh6 Rc7 Rg5 Rg2 Kh5 Ra7 Nb8 Ra2 Na6 Re2 Qf1 Rg2 Qfd3 Re2 d1R Rg2 Rd2+ Kc1 Q3d4 Rc2 Rd3 Rce2 Rd1#
2b1n3/pK3Q1q/BB3N2/b1P1p1Q1/1n4nP/RRB1p1k1/b2nq3/rR4q1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 f4 hxg4 e4 b5 f5 bxa4 Nd2 Na6 Ndf3 Rb8 Ng5 Rb5 Ne6 fxe6 f6 Rf5 exf5 e5 Ra3 e4 Ra2 Bb7 Ra1 Bc8 Ke2 Kf7 b4 g5 c4 d5 b5 e5 b6 e3 Kd3 a3 b7 g3 b8Q g4 h3 g2 Qd6 a2 Ne2 g1N Bb2 g3 Bc3 g2 Bb2 Qd7 Qc2 Nc7 Qa4 Nf3 Qb5 g1Q Qb3 Nd2 Nc3 Nh6 Ne4 Ng4 Bc3 Ne8 h4 Rh6 Qdb6 Bb4 Qd8 Ba5 Rb1 a1N c5 Kf8 f7 Kg7 f8R Nc2 f6+ Kg6 f7 Kf5 Nf6 Kf4 Ra1 Kf3 Ra3 Kg3 Rg8 Rg6 f8B Qh7 Be7 Rg5+ Rg6 Rf5 Be2 Rf1 Bd6 Ra1 Bc7 Qg2 Rb1 Qg1 Bf1 Nb4+ Ke2 Bf5 Bb6 Be6 Rg7 Bc8 Rb7 d3+ Kd1 d4 Qf7 Ne4 Kc1 d2+ Kb2 d1Q Ba6 Qf3 Kb3 d3 Kc4 d2 Kb5 d1B Rb8 Bb3 Qde7 Nd5 Kc6 Nd2 Qd8 Ba2 Rbb3 Bf5 Kb7 Qe2 Rb1 Nec7 Qdg8 Ne8 Qg5 Nb4 Rd8 Nc4 Rd2 Be6 Rdb2 Nd2 Rbb3 Bc8+
r3q1b1/1N6/4QrR1/1k3pb1/n4Qb1/p1bKP1Q1/Pp4bR/BBR1br2 w - - 0 1 legal: proof: f4 e5 g4 c5 b4 cxb4 c4 f5 g5 d5 Bg2 dxc4 Bf1 Nd7 Nc3 exf4 Ne4 Ndf6 gxf6 h6 Nf2 h5 Ng4 hxg4 d4 Kd7 Kd2 Kc6 h4 g5 f7 b5 h5 a5 h6 c3+ Kd3 b3 h7 c2 Rh6+ Nf6 Rh2 a4 Rf2 f3 Bh3 b4 d5+ Kb5 d6 g3 d7 g2 Ke3 b2 Qd4 b1B Qe4 g4 Kd3 b3 Qe5+ Nd5 Bg5 c1B+ Kd4 g3 Qe6 a3 Bf6 Bg5 e3 Nc3 Ne2 g1B Nc1 g2 Nd3 Qe8 d8R Bg7 f8Q Na4 Nc5 Bc2 Rd6 Bd1 Nb7 Bh2 Rc6 g1R Qfd6 Rf1 Qf4 Rf8 h8Q Bg3 Rh2 f2 Qhh4 Bg4 Kd3 Rf7 Bc3 Rf6 Rc1 Bd7 Ba1 b2 Rd6 Bc6 Bg2 Bd5 Be4 Bh8 Qe7 Bg8 Ra6 Rg1 Qe6 f1B+ Re2 Be1 Qhg3 Bfh3 Rh2 Bg7 Kd4 Bh8 Bb1 Rf1 Kd3 Bg2 Qee4 Rf7 Rg6 Bhc3 Qe6 Rf6
1Qqq1NQ1/bb2Q2p/1N6/1bPBRKb1/Prn1N3/1p5n/1p1Bb3/k1b5 w - - 0 1 legal: proof: e4 g5 f4 c5 d4 cxd4 g4 f5 a4 a6 h4 Ra7 h5 Ra8 Ra3 fxe4 Rf3 b5 b4 a5 f5 axb4 Rf4 gxf4 g5 Ra5 Kf2 Ra6 Ke1 Rg6 hxg6 Bb7 Nf3 Ba6 Ng1 Bc8 Kf2 e5 c4 Ke7 f6+ Kd6 f7 Kc5 g7 d5 g6 e3+ Kf3 d3 Bd2 Kd4 Bh3 e2 Qc2 e1B Be6 e4+ Kg4 f3 Rh4 f2 Qd1 f1B Bf4 d2 Bg5 b3 Rh5 b2 Rh4 b4 Rh3 e3 Na3 Kc3 Nf3 d4 Bf5 e2 Be7 Bh4 Bd6 e1B Be6 Nc6 Bg3 Bc5 f8Q Nf6+ Kf5 Ne5 g8Q Ne4 g7 Ba7 c5 Nc4 Ne5 Nf2 Qb1 d1B Kf4 Bde2 Qff7 Bd2+ Kf5 Bb7 Ng6 Qc8 Qe7 Bhg5 Rh5 Bc1 Bf4 Nh3 Nf8 Kb3 Bd2 d3 Qc2+ Ka2 Qc3 b3 Qe5 Qc6 Bd5 Ka1 Qb8 Qd7+ Qge6 Qe8 g8N Qc8 Nf6 Rg8 Ne4 Rg7 Bf4 d2 Be3 d1Q Bd2 Qd8 Qg8 Qc8+ Qee6 Rg6 Qd7 Rb6 Qde6 Na5 Nc4 Rb4 Nb6 Bb5 Qd7 Nc4 Qde6 Be2 Qd7 Qd8 Qe7 Qe1 Rh6 Qg3 Re6 Qgc7 Re5 Qcc8+
1Q5N/KpnR1bn1/PQb3Qn/1R4bB/P5b1/3Rr1p1/p2N4/kb2r2b w - - 0 1 illegal: No proof kernel
1RQNbQRn/p1K2N2/1nn2P1P/k1b2r1p/3b4/N1rB4/2Qr3p/3r3b w - - 0 1 illegal: No proof kernel
QQ2b1R1/ppq1nb2/Bn6/2p5/QPP1kN1N/2Bq1p1K/1Br3r1/2q4b w - - 0 1 legal: proof: b4 g5 e4 d5 a4 dxe4 f3 exf3 a5 g4 a6 g3 Na3 Be6 Be2 Ba2 Bd3 Nxa6 Bf1 Nb8 Rb1 Qd6 Rb3 Qd5 Re3 Qd8 Re5 Qc8 Re2 Qd8 Rf2 Bd5 Be2 Bb3 Bf1 Ba2 Qe2 gxf2+ Kd1 Qc8 Bb2 Bg7 Kc1 Bb3 Qd1 Bh6 Kb1 Bc4 Bc1 Bf8 Kb2 Ba2 Kc3 Qd8 g4 Bc4 h4 Bh6 g5 Bb3 g6 Bg5 hxg5 Ba2 d4 Kd7 Kd2 Ke6 Ke3 Kf5 d5 c5 d6 e5 c3 h5 d7 h4 g7 e4 g6 h3 Ba6 f1Q Nc2 h2 Nh3 f2 Rg1 h1B Rg3 Qc7 d8B Nd7 Bf6 Nb6 Bb2 Ne7 Nf4 Rh2 Be5 Rg8 Ne1 f6 Qa1 Bf7 Qa4 Qc4 Neg2 f1B Kf2 e3+ Kg1 e2 Nh4+ Ke4 Rg5 Qd3 c4 e1Q Bec3 Rc2 Rg3 Bfg2+ Kh2 Bf3+ Kh3 f5 Rg2 Qc1 Rg1 Rc8 g8Q Bh5+ Rg3 Be8 g7 Bhf7 Qh8 Rd8 g8Q Rd6 Qf8 Rg6 Qhg8 Bb5 Qa8 Bbe8 Rf3 Rg1 Rg3 Rgg2 Qh8 Qdf1 Rg8 Qfd1 Nfg6 f4 Qb8 f3 Nf4 Qd3 Qa8 Ke3 Qe5+ Qe4 Qd6 Qd3 Qdd8 Ke4 Qd6 Qd8 Qdb8 Qc7
1q6/1Q1pR1br/n2Nr1p1/P5p1/r1B1QQ2/r2n2pr/4NPN1/kb3KB1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 g4 fxg4 d4 axb4 Ra3 cxd4 Rf3 h6 Rf5 Qa5 Rg5 Qf5 exf5 hxg5 c4 Kf7 h4 Kf6 h5 Ke5 h6 b5 c5 b3 c6 b2 f6 b4 c7 g6 f7 b3 h7 d3 Nc3 Kd4 Nb1 e5 Rh6 d2+ Ke2 e4 Bg2 e3 Kf1 Ba6+ Qe2 Nf6 c8Q Bg7 f8N Ne4 Qb7 Nc5 Bd5 d1R+ Kg2 Rd3 Nd2 Kc3 Qe1 b1R Bc4 e2 Ne6 b2 Nf4 Ra1 Ne4+ Kc2 Qeb4 Kb1 Nd6 e1R Nge2 Raa3 Rh3 Bb5 Re3 Nba6 Re7 Ka1 Qe4 Bc6 Qb7 Rh3 Be3 b1Q a5 Rac8 Bd2 Nd3 Be3 Qb4 Ba7 Ba4 Bb8 Bc2 Bc7 Bb1 Bb8 Rhe8 h8Q Reh1 Qf8 Rh7 Qf7 R1h3 Kf1 Qb2 Ng2 Qb3 Bb5 Rc4 Qff4 Rca4 Bc4 Qb5 Bc7 Qb6 Bb8 Qd8 Bc7 Qb8 Nf5 Rc8 Qfe3 R7h4 Bh2 g3 Q3f4 Rc6 Bg1 Re6 Nd6 Rh7
b2r1RN1/4Q2b/n1nr1RK1/NP1pp2N/rk1n2R1/4QPn1/2ppB3/5q2 w - - 0 1 illegal: No possible last move
4bQb1/2P2N1K/3rp1n1/4Q1p1/p1qRpQ2/nr1RnP2/2R2B2/1b1N1k1n w - - 0 1 illegal: No possible last move
K1q1RBn1/n3RP1r/P2Q1BR1/1p2pp2/1nk5/1bN5/b1b1p1Bb/4Q2b w - - 0 1 illegal: No proof kernel
1B6/1kn5/1nR2rp1/1B1BpR1Q/1Ppq1bPr/Kq3np1/4N1QR/2n4n w - - 0 1 legal: proof: c4 b5 e4 h5 g4 c5 a4 bxa4 d4 f5 d5 fxe4 Nc3 h4 Nce2 d6 Ng3 hxg3 Bf4 Bb7 Bc1 Bc6 dxc6 d5 Be3 dxc4 Bf4 Rh7 Bc1 Rh8 h4 a5 f4 e5 b4 e3 f5 e2 f6 c3 h5 c4 c7 g6 c8B a3 h6 a2 h7 c2 Be6 a4 Qd2 a3 Bc8 Na6 Rb1 a1Q Bg2 a2 Rh4 Qc3 Be6 a1N Be4 Bh6 B6d5 Kd7 f7 Kc8 f8R Ne7 Rf6 Bf4 Rc6+ Nc7 Rh2 Kb7 Bb2 Qd3 Bd4 c1N Ba7 Qb3 Bb8 Nc8 Qc2 Rf8 h8Q Nb6 Qh5 Rf6 Bf5 Qd6 Bd7 Qc5 Qe4 Qd4 Qg2 Ra7 Rb2 Ra2 Rd2 Ra7 Rd3 Ra8 Re3 Nd3+ Kd2 e1N Ne2 Nf2+ Kc1 Nh1 Be8 Nf3 Bd7 Qa4 Kb1 Nb3 Rd3 Qf2 Kb2 Nc1 Rd1 Qe3 Rf1 Qd3 Ba7 Rh8 Bb8 Qad1 Rf2 Qb1+ Ka3 Qd4 Bc8+ Ka8 Ba6 Rh7 Bb5 Kb7 Qg5 Rh3 Qh5 Rh4 Nc3 Bd2 Na2 Ng1 Rf5 Bf4 Nc3 Nf3 Ne2 Qb3#
1QK3nq/2q2B1p/1PpR1nnN/1P2r3/k4p2/b2b2Qp/B2BQ1n1/Rn6 w - - 0 1 legal: proof: b4 b5 f4 d5 c4 dxc4 h4 a5 Nc3 g5 Na4 gxh4 a3 bxa4 b5 Ra6 f5 Rc6 f6 Rc5 b6 c6 Kf2 Rb5 Ke1 Rb4 axb4 exf6 b5 f5 Ra2 f4 Ra3 Ke7 Ra1 Ke8 Kf2 Kd7 Kf3 f5 g4 c3 d4 h3 e4 c2 g5 a3 g6 a4 d5 a2 e5 a3 e6+ Kd6 e7 Kc5 e8B Kb4 g7 Qc7 d6 Ka4 Qd3 Nd7 Qe2 Ndf6 Bb2 c1N d7 Nd3 d8Q Bc5 Rd1 a1N Bf7 a2 Bc3 Ba3 Bd2 Nb3 Bg2 Be6 Qb8 a1Q Bf1 Bc4 Bg2 Ne7 g8Q Qae5 Qg3 Re8 Ra1 Neg8 Rh2 Qd4 Bh1 Re5 Rf2 Re4 Rff1 Re7 Rfd1 Re5 Qg4 Rc5 Be1 Nh5 Qgg2 Qh8 Qg3 Nhf6 Qe5 Rd5 Ne2 Rc5 Nd4 Nd2+ Ke2 f3+ Ke3 f2 Bhd5 Nb2 Kf4 Bf1 Ba2 Nb1 Rd3 Nc4 Bd2 Be2 Kg5 f4 Kf5 f1N Ke6 Nfe3 Nf5 Ng2 Rd6 Bd3 Qe2 Ne5 Nh6 Ne4 Rd8 Ng6 Rd5 Qce5+ Kd7 Nef6+ Kc8 Qe7 Rd7 Re5 Rd6 Qc7+
R2RB3/1npPq1p1/4K1QN/1Q6/1Qp1R3/b1b1b1Np/2q1bP1r/3b2kn w - - 0 1 illegal: No proof kernel
1qQn1N2/6n1/rb1B1qp1/1RRqp3/2p1pB2/1q1P3P/r1k1B3/Qr4RK w - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 g4 axb4 Nf3 f5 Ng1 fxe4 f4 h5 f5 Qd5 f6 Qd8 Nc3 Ra5 Nd5 Ra7 Ne3 Bf5 gxf5 Ra8 Ng4 hxg4 Kf2 Kd7 Kg2 Kd6 a4 Kc5 d3 Kd4 f7 Kc3 f6 e5 h3 c5 a5 b5 a6 g6 a7 b3 Bh6 b4 Kh2 g3+ Kg2 b2 Nf3 b1Q Qa4 b3 Be2 b2 Bc1 Nc6 Bg5 Nge7 Be3 Qd5 Qa6 Nd8 Nd2 Kc2 Re1 c3 Qc8 c4 Bf4 Nf5 Rg1 Bc5 f8R Bb6 f7 Ng7 Kh1 Qf1 Ra3 b1Q Nf3 Qb3 Ng5 Qfb1 Nh7 g2+ Kh2 Qf1 Ra5 Qf3 Rb5 Rg8 Bh6 Qf6 Bf4 Rh8 Re8 Rg8 f8B Rh8 Rh1 g1R Bd6 Rb1 Re7 Re8 Rc7 Re6 Rd1 Kb2 Kh1 c2 Re1 c1Q Rg1 Kc2 Nf8 Qcb2 Rcc5 Ba5 Bc7 Ra6 Bb8 Bb6 Bd6 Rb8 a8Q Rb7 Qg4 Rba7 Qac8 Ra2 Qh4 R7a6 Qe1 Qa8 Qa5 Qb8 Qa3 Qd4 Qa5 Qd5 Qa3 Rab2 Qa1 Rba2
B6Q/k2p2R1/3R1n1p/2p1N3/pb2rQ1P/2PqnrB1/2r2rR1/qn2Q1K1 w - - 0 1 legal: proof: d4 e5 a4 exd4 g4 b5 Nd2 bxa4 Nb1 f5 b4 fxg4 b5 a5 Nd2 Ba6 Nb3 axb3 bxa6 Qh4 Kd2 Qe7 Ke1 Qd8 e4 g5 f4 b2 Kf2 b1N h4 g3+ Kg2 h6 f5 d3 e5 d2 f6 a4 a7 g4 e6 Bb4 e7 c5 Qe2 d1Q Qe3 Qd3 Ne2 Na6 Qe6 Nc7 Ng1 Nd5 Nf3 Ne3+ Kg1 g2 Ra2 Qb8 Qe4 Qe5 Qf4 Qa1 c3 Rh7 Bd2 Rf7 Be1 Rd8 a8Q Rc8 Kh2 g1R Ne5 Rg3 Rg1 Rf3 Rag2 g3+ Kh1 Rd8 Be2 Rf2 Bf3 Rc8 Qae4 Rc6 Qh7 Re6 Qh8 Rc2 Ba8 Rf8 Re2 g2+ Kh2 Rf7 Bg3 Rf8 Rd1 g1R Rg2 Rf1 Rdd2 Rf3 Kg1 Qe4 Rd6 Qd3 Nc6 Kf7 e8R Re4 Re5 Rff2 Rg5 Ke8 Ne5 Kd8 f7 Kc8 Rg4 Kb8 Rg7 Ng4 Qd2 Ka7 Qd1 N8f6 Qe1 Rc8 f8Q Ne3 Qf7 Rf8 Qc4 Nfg4 Qd4 R8f3 Qc4 Nf6 Qf7 Ne8 Qf4 Nf6
k4rQ1/2b5/N1R4B/3b1pB1/Pppr1P2/r1rr4/1bNKpn2/1Nn2B1Q w - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 e4 a5 h4 gxh4 d5 axb4 e5 Qd6 exd6 Bh6 Nh3 Bg7 Ng1 Bf8 g4 Kd7 f4 f5 a3 h5 g5 e5 g6 c5 g7 b5 Qd3 b3 Qd4 c3 Be3 b2 Qe4 h3 Nd2 b1R+ Ke2 b4 Qc2 e4 Rh2 h4 Bd4 e3 Rh1 c4 Ra2 h2 Bf6 h3 Qb2 c2 Qc1 Na6 Ndf3 Rb3 Be7 Nh6 g8N Ng4 Nd4 Rc3 Ngf3 Nf2 Nd2 Nc5 Nb1 Bb7 Bg5 Kc8 d7+ Kb8 d8B Bd6 Nf6 Ncd3 Ne8 Rf8 Bh6 Bc7 d6 Bd5 d7 Ra4 Be7 Ka8 Beg5 Ra7 Qd1 c1B Rd2 Bb2 Nc2 Nc1+ Ke1 e2 Rd3 Ra6 Kd2 Ra7 Rg1 h1R a4 h2 Qe1 Ra6 Rg4 Re6 Rgg3 Re3 d8Q+ Bb8 Qc8 Ra3 Qe6 Bc7 Qg8 Rg1 Rg2 h1R Rg4 Rhh3 Rg3 Bf3 Rd6 Bg2 Rc6 Bd5 Qd1 Rec3 Rd3 Re3 Qe1 Nh1 Qh4 Nf2 Qh1 Rgg3 Nd6 Re4 Nb7 Rge3 Nc5 Rd4 Na6 Rexd3+
2r2kNQ/KN6/1r3B2/4p3/P2prbbp/4pB1b/Pn2BN1R/1Q3bbn w - - 0 1 illegal: No proof kernel
1k1r3n/Np2Qn2/1Pb3R1/rb1QqQ2/RB1p1r2/4p1r1/Bp3p1P/3K2R1 w - - 0 1 legal: proof: d4 d5 b4 h5 g4 hxg4 f3 gxf3 Na3 e6 Nb5 c5 e4 cxd4 e5 Bd6 exd6 Kf8 Nc7 a5 Na6 Ke8 b5 Rh6 Nb4 axb4 Qd2 Rh4 Qd1 Rh8 c4 Kd7 a4 g5 a5 f5 c5 d3 a6 b3 a7 e5 b6 d2+ Kf2 d4 Bb2 g4 Rc1 e4 Bc4 g3+ Kf1 e3 Qe2 d1B Ke1 f4 Qd2 g2 Ra1 Ne7 Qc1 Qc7 Bc3 b2 Ba2 Nbc6 Ne2 Rd8 Rg1 Ba4 Bb4 Ng6 Nc3 Nh8 Nb5 Ne5 Qc4 Nef7 Qd5 f2+ Ke2 f1R c6+ Ke8 Rd1 Bd7 Rd2 Qb8 c7 Bc6 c8Q Rf2+ Ke1 f3 Qcf5 Qc7 Rc2 Qe7 Kd1 Qe5 Qd3 Kd7 Q3e4 Rab8 a8R Kc8 Ra7 Ra8 d7+ Kb8 Qf5 Qg3 Ra6 Qe5 Na7 Bab5 Re2 Rf1+ Re1 Rf2 Ra4 Rf1 Nc8 Ra5 Na7 Rc8 d8Q Rf2 Qh4 Rd8 Qe7 Rf1 Rh1 Rf2 Ref1 g1R Re1 Rg3 Rhg1 Rfg2 Ref1 f2 Re1 Rf3 Ref1 Rgg8 Rg6 Rf4 Rfg1 Rg7 Rd6 Rgg4 Rg6 Rg3
1r4Qr/R1p1kN1n/pN3q1r/1n2p1P1/1N6/2Qq4/Pp4np/b2QKR1B w - - 0 1 legal: proof: e4 f5 f4 fxe4 b4 g5 c4 d6 c5 dxc5 f5 cxb4 Qf3 b3 Qe2 Qd3 Qd1 Qd8 g4 Kd7 Ba3 Ke8 Bd6 Bd7 Bf4 gxf4 h3 Bc6 g5 Bb5 Nf3 Be2 Ng1 Bg4 hxg4 Qc8 Rh2 Qd7 Rh1 Qd8 d4 b5 f6 h5 g6 b2 g5 e3 g7 h4 d5 b4 d6 b3 Qd2 h3 Ne2 f3 Qc1 a6 Nec3 h2 Nd5 e2 Na3 b1R Nb5 Nc6 Bg2 Nd4 Rf1 Rb8 Nb4 e5 Na3 Nb5 d7+ Kf7 Bh1 Bc5 Qd1 Bd4 Nc4 f2+ Kd2 e1N Nb6 Ke6 f7 Ng2 f8Q Nf6 Qc5 Nh7 Qc3 Qf6 g8Q+ Ke7 d8N Rc1 Nf7 Rb1 Re1 f1Q Re3 Qc4 Rf3 Rc1 Rf1 Qd5 Rb1 Qd7 Qh3 Rc6 Ke2 Ba1 Qc3 Ne3 Rb2 Qd3+ Ke1 Re6 Rbf2 b2 Rd2 Qe4 Rd8 Qd3 Rc8 Qf4 Rd8 Rh6 Rf8 Qf6 Rc8 Rb7 Ra8 Rb8 Ra7 Ng2+
QnR3b1/2BnQ1pR/1pp1nBR1/1Bp2p2/3r3N/Pk6/2n1P3/3bbqK1 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 a5 c4 axb4 c5 d6 Bb2 dxc5 Ba3 Be6 Bc1 Bc8 g5 f5 Nc3 Ra6 Ne4 Rf6 gxf6 h6 Nf2 h5 Ng4 hxg4 Kf2 Kd7 h4 Kd6 d4 Kd5 a3 Kc4 d5 b6 h5 c6 d6 g3+ Kg2 b3 h6 f3+ Kh3 b2 h7 b1B d7 g2 Kh2 f2 f7 Bc2 Nf3 g1N Nh4 Kb3 Qd6 Be7 f8Q Bd1 Bb2 Nh3 Bf6 Nf4 Bg2 f1N+ Kg1 Ne3 Be4 Nc2 Bd3 Ne6 Bb5 Qc7 d8B Qd7 Bg5 Nf6 Bc7 Qd8 Qg8 Nfd7 Bf6 Ba6 Qe5 Bd6 Qe4 Bg3 Qf8 Rg8 h8R Be1 Qe7 Re8 Qf4 Rf8 Qd2 Bc8 Qa5 Rf7 Qa8 Ba6 Bd3 Bc4 Rh7 Bd5 Bb5 Qh8 Rh2 Rf8 Rg2 Rd8 Rg6 Bc4 Rh5 Qh6 Ra2 Qf4 Rh7 Ne5 Ra1 Rd4 Rh8 Ned7 Rc8 Ng5 Rc1 Bg8 Rb1+ Ka2 Rb3 Ne6 Rh3 Qc1 Ng2 Qf4 Rh7 Kb3 Nh4 Qf1+
1R1n1qbr/N1B5/N1pp2N1/2Rq1r2/3Q1pn1/2P1P1pQ/p3k1n1/1R3n1K w - - 0 1 legal: proof: d4 e5 f4 exd4 a4 g5 b4 gxf4 Ba3 b5 Bb2 bxa4 Bc1 a3 g4 h5 g5 a5 Bg2 a4 Bf3 Bc5 Bg4 hxg4 Nh3 Bb6 Ng1 Ba5 bxa5 Rh6 Kf1 Rh7 Ke1 Rh8 Kf1 Ke7 Kg2 Kd6 h4 Kd5 h5 Kc4 e3 f5 h6 f3+ Kh2 f4 c3 d3 g6 f2 g7 a2 h7 a3 a6 d2 a7 Kd3 Nf3 Qf8 Nh4 Nh6 g8R Nc6 Ng6 f1N+ Kg1 g3 Rh5 Nd8 Kh1 c6 Rc5 Rb8 a8N Rb5 Nc7 Ng4 Na6 Ra5 Qa4 d1Q Qb4 Ke2 Qd4 Qf7 Re8 Qf8 Bb2 Rg8 h8Q d6 Qh3 Be6 Bc1 Rh8 Bb2 Nf7 Rb8 Qd3 Nd2 Nd8 Rb1 a1N Nb3 a2 Ba3 Nc2 Bb4 Rb5 Ba5 Bg8 Bc7 Qd1 Na5 Ne1 Nc4 Qb3 Nb6 Ng2 Nc8 Qe6 Na7 Ra5 Rc4 Rf5 Rc5 Qd5
b5Q1/p2Q4/1P1p1KrR/1r3ppN/1r1R4/BPB1p1nq/2kBp3/Q2n2b1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 d4 cxd4 f5 g6 g4 Nh6 f6 Ng8 g5 Qb6 Nd2 Qa5 Bh3 Qd8 Bf5 gxf5 g6 h6 Ndf3 Qb6 Ng5 hxg5 Nf3 Qc7 Ng1 Qd8 Kf2 e5 Kg3 d3 h4 e3 c4 e2 b6 e4 f7+ Ke7 c5 Ke6 h5 Kd5 c6 Kc4 b3+ Kc3 g7 d2 c7 Bb7 c8Q+ Nc6 h6 Nf6 g8Q Bc5 f8B Nd4 h7 Nb5 Ra6 Nh5+ Kg2 Ng3 Ra4 Qc7 Nh3 Bg1 Qe1 Kc2 Nf4 d1R Bd2 Nc3 Ba3 d6 Nh5 Qc4 Qd7 Qd3 Rd4 Rf8 Qf1 Ba8 Rh3 Ra1 Rh4 Ra2 Qa1 Rf7 Rh2 Rg7 Rh3 Bh2 Kf2 Qf3+ Ke1 Qh1+ Kf2 Qf1+ Ke3 Qg2 Rd3 Nd1+ Kd4 e3 Kc4 Bg1 Rd4 Bf3 Rh2 Qh3 Rh1 Ne4 Kd5 Ng3+ Ke6 Ba8 Qgd8 Re8+ Kf6 Re5 h8B Ra5 Qg8 Rb5 Bac1 Ra4 Ba3 Qg2 Nf4 Qf1 Rh6 Qh3 Nh5 Rab4 Re4 Qg4 Ke6 Rh7 Bhc3 Rg7 Rd4 Qh3 Kf6 Rg6+
q2bQq2/P5k1/4b1pr/1Q1r2q1/1n2rb1n/nr3RQ1/rN1NBKPR/5R2 w - - 0 1 illegal: No proof kernel
n1nRN3/QP2qpn1/r6K/1B1b1Pr1/2q4b/2Qqn1r1/4n2n/1kBQB1N1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a4 bxa4 g5 e5 g6 e4 Ra2 hxg6 Rb2 g5 Rb3 g4 Rd3 exd3 Kd2 Ke7 e4 Kf6 h4 Ke5 c4 d5 f3 g5 h5 a5 c5 g3 h6 g2 c6 g4 c7 g3 b5 a3 b6 a4 h7 a2 b7 a1R Na3 Na6 Ne2 g1N Nb1 g2 Na3 Qe7 Nf4 Ne2 Nh5 g1N Nc2 a3 Ng7 a2 Bb2 Be6 c8Q Nc7 Qe1 Ra3 Bh3 Na8 Qb1 Rb3 Kd1 d2 Qc6 Kf4 Nb4 Ke3 f4 Nf3 e5 Nh2 Kc2 d1N Bc3 Ke4 Kd2+ d3 Qc7 d4 Bf1 Bd5 e6 Ne3 Ne8 Nf5 Nc6 Ng7 f5 Ra3 Qd1 Rb3 Ke1 d2+ Kf2 d3 Nd4 Ra3 Nf3 Ra6 Qb1 d1Q Ng1 Qa4 Qc2 Qc4 Qd1 d2 Qb8 Kd3 Qa7 Rb1 Bb2 a1Q Bc1 Kc3 Ke3 Rb5 Qb6 Qb1 Qa7 Qeh4 e7 Rb3 Nc7 Qf6 e8Q Ne7 Qc6 Rg8 h8B Nc8 Ne8 Be7 Qc7 Bd8 Qg3 Qe7+ Qe5+ Nd4 Kf4 Qbd3 Qf6 Rba3 Kg5 Rb3 Kh6 Rba3 Qf3 Kc2 Qd1+ Kb1 Qc6 Ne2 Qf6 Ne6 Qc3 Rg5 Be5 Ng7+ Bd6 Bb6 Bg3 Rb3 Be1 Rba3 Qa4 d1N Qd7 Ne3 Qa4 Nf3 Qd1 Rb3 Rh4 Nh2 Re4 Bc7+ Re6 Bg3 Rd6 Be6 Rd8 Bf2 Bg2 Bh4 Bc6 Bd5 Qf6 Rbb6 Bd7 Re6 Bb5 Re4 Qc6 Reg4 Qf6 Rg3 Qc6 Ra4 Qf6 Ra1 Qc3 Ra6+
1B6/Q1q1qPBb/1pnQ4/Q1b4q/q4r2/3bqn1q/kPrRBn2/N3RK2 w - - 0 1 illegal: No proof kernel
2QN2Qn/1BB1Q2K/Rq6/nPrpqb1q/k1Bn1b1q/3Prnq1/3n3N/8 w - - 0 1 illegal: No possible last move
5nR1/RP3b1b/N4B1k/B1q4r/b4p2/2Rr1Pb1/1qqQ1br1/Q3KBnq w - - 0 1 illegal: No possible last move, all moves rejected
R3N3/2Qq1Q2/KpB5/1PRrb1b1/Nn1kqn2/3PbRnr/2q1bn2/N4b2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 f5 dxc4 b5 e6 Bb2 exf5 Bc3 f4 Bb4 axb4 e4 Ke7 Ke2 Kd6 a4 Kc5 g4 h5 g5 f5 d3 c3 e5 c2 g6 c1B a5 b6 a6 b3 e6 b2 a7 f3+ Kf2 f4 g7 h3 e7 h4 e8N h2 Ne2 h3 Ra2 Nf6 g8Q Na6 Nd6 Bg7 Ke1 Nd5 Nd2 b1Q Ra3 Qc2 Ng1 f2+ Ke2 Nab4 Qh7 Be5 Qf7 Na2 Qf5 Qd7 Rb3 Kd4 Bg2 f1N Qf6 c5 Qe7 c4 Qf7 c3 Ne8 Ng3+ Kf3 Bb7 Ra3 Rd8 a8R Bc6 Rc8 Rh6 Raa8 Bb7 Kf2 f3 Rc5 Nf4 Qe1 Bb8 Qee7 Be5 Qd6+ Bd5 Qc6 Be6 Qc8 Bg4 Qc7 Nf5 Kf1 f2 Bc6 Bh5 Nc4 Be3 Nb2 Qb3 Na4 c2 Ra6 c1B Ra5 Bed2 Ra8 Qc2 Nf3+ Ke3 Ng5 Kd4 Ne4 Be3 Nd2 Rh7 Rg1 h1N Rg3 h2 Rf3 Bg4 Qf6 Rh3 Qf7 Nd5 Kg2 Nfg3 Rf5 Bg5 Rf6 Be2 Nb3+ Ke3 Na1 Kd4 Rf5 Bce3 Rf6 Bf1+ Kf3 Nf4 Rf5 Ne6 Kg4 Be2+ Rf3 f1B Ng7 Ne4 Kf5 Nhf2 Ne8 h1Q Qb8 Qa7 Qc8 Nf4 Qcc7 Nd5 Ke6 Ng3 Rf5 Qe4 Rf3 Rb8 Kd7 Nf4 Ng7 Rf8 Ne8 Rfh8 Kc8 R8h5 Qb8 Qe7 Qc7 Qd7+ Kb7 Rh6 Ra5 Rd6 Ra8 Rd5 Ka6 Nb4+
bbq1k3/BNr4Q/r2bp1r1/R1q2bRN/R2PP3/qN2K1rn/3Q2r1/2n5 w - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Qa4 g3 Bh3 g2 Bg4 hxg4 Qc2 dxc6 Qb3 c5 Qd1 c4 d4 c5 Kd2 b5 a4 g5 h4 e6 f4 b3 a5 b4 h5 g3 e3 c3+ Kd3 c2 a6 b2 f5 b3 h6 g4 h7 c4+ Ke4 c3 f6 Bd6 a7 Nc6 Bd2 c1R Ra3 c2 Qe1 Ne5 Ra1 Ne7 Na3 b1Q Rh6 b2 Rh4 Rg8 h8Q Qa2 Rh2 b1B Qh6 Rg6 Qg7 Bb7+ Kf4 Qc8 Nf3 g1B Rg2 Bh2 Nc4 Qa3 Ba5 Nd5+ Ke4 Qac5 Bb6 Nd3 Qd2 Qa3 Rg1 g2 Qh7 g3 Na5 Qac5 Ra4 N5f4+ Nc6 Nh3 f7+ Kd7 f8N+ Ke8 Nd7 Bb8 Rf1 g1R Rf2 g2 Nf6+ Kf8 Rf1 Bhd6 Nh5 Ke8 Rf2 Rgd1 Re2 g1R Rg2 Qa3 Rg4 Rg2 Rg5 Rh1 Raa5 Rcg1 Ra4 c1Q Raa5 Qcc5 Ra4 Ba6 Nd8 Rc1 Nb7 Rhg1 Qb4 Rcc2 Nd2 Nc1 Nb3 Bb5 Qd2 Bc6+ Rd5 Rc4+ Kf3 Bf5 e4 R2g4 Ke3 R1g2 Ra5 Ra4 Rb5 Ra6 Ra5 Bbc7 Re5 Rb8 a8R Bd5 Nd8 Rb7 Ba7 Bb8 Ra4 Rc7 Nb7 Bc6 Rd5 Be7 Rd7 Bd6 Rg7 Rh6 Rg5 Rg6 Ra5 Rf7 Ra4 Bd5 Nd8 Rc7 Bb6 Ra5 Ra7 Ba8 Nb7 Rh2 Ra6 Rf2 Ba7 Rfg2 Rb6 Ra6 Rb5 Qcb4 Re5 Qb6 Rb5 Qbc5 Rba5 R4g3+
qB1QK3/1qr1NrBk/2pQR1q1/1r3Bq1/1RP2Pnn/rr6/1b1R1n2/3b4 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nc3 fxg4 Nce2 axb6 Rb1 b5 Ng3 hxg3 Ra1 b4 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 b5 f4 g2 h4 g3 c4 b3 d4 c6 a4 b2 h5+ Kh7 h6 b1R a5 g5 d5 b4 d6 b3 a6 g4 d7 b2 a7 Nf6 Qe2 Bg7 Qd1 Na6 Nf3 g1R Qd6 g2 Qc5 g3 Ra5 Ng4+ Ke2 e3 Kd3 e2 Ke4 e1Q+ Kf5 e4 Ke6 e3 Kf7 e2 Qb5 Nb4 Bd2 Nd3 Qb4 Ndf2 Bc3 Rf8+ Ke6 Qc1 Ra2 e1N Nh4 Nf3 Ng6 Nh4 Qd6 Rf7 Be5 Qe3 Ne7 Qb3 Rh2 Qb7 Ra4 Rh1 Be2 g1Q Rb4 g2 Bd1 Bf6 Bb3 Qg8 Bc2+ Qg6 Bf5 Qd1 Rb6 g1Q Rb4 Qa4 Rg2 Rh3 Rh2 Rb8 a8R Ra3 Ra5 Rba1 Rd5 b1R Rd2 R1a2 Rh3 Qaa6 Re3 Rbb3 Ree2 Qaa8 Re1 Kh8 h7 Kg7 h8B+ Kh7 Re3 Ra7 Bg7 R2a3 Qd3 Qg3 Kd6 Qg1 d8Q Be6 Qd4 Bd5 Qd3 Bf3 Ke6 Bd1 Q3d6 Qa6 Re4 Rc7 Ree2 Rb5 Re4 Rc8 Kd7 Q6b7+ Ke8 Rc7 Qd3 Rd7 Bb8 Bb2 Re6 Rc7 Q3d5 Qg2 Q5d6 Qd5 Bb1 Qh5 Bf5 Qg5
BQr2R1q/nnq5/k2r1rQb/1p1b2Rr/1Q4Nb/BPn5/1r1P1K2/2b1R3 w - - 0 1 illegal: No possible last move
1r2Q2r/1q2nn2/2r1b3/3np2K/Rn2BQ1n/b1R1N2r/1k1qPP1b/1N4QN w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 c4 Rh7 h4 Kf7 a4 Kf6 h5 Ke5 h6 d5 c5 b5 a5 g5 a6 b3 a7 d3 c6 Kd4 c7 e5 Rh3 b4 Qd2 g2 Ra5 g3 Rh2 b2 Ra6 b3 Ra2 g4 Rh4 Nc6 Nh3 g1N Qg5 g2 Qf5 d2+ Kd1 Be6 c8N Nf3 Nd6 g1B Ne8 Ng5 Nd6 Bh2 Na3 Kc3 Nf7 g3 Qe4 g2 Nd6 g1N Nf4 d4 Ng2 N1f3 Nf5 b1N Ng3 b2 Rg4 Rb8 a8Q Bc5 Nh1 Nge7 Rf4 Qd5 Qa6 Nh4 Qc8 Kb3 Qe8 Nf7 Qg6 Qd7 Rg4 Qb7 Rg3+ Ka4 Kc2 Nc3 Kd3 Ncd5 Ke4 b1R Qg4 Rb3 Nb1+ Kb4 Qgg8 Rf3 Ra4+ Kb3 Qg5 d1Q Qeg8 d3 Qf4 d2 Qg6 Kb2 Rh3 Rg7 h7 Rgg8 h8Q Rg7 Qe8 Rg8 Qgg3 Rb3 Qgg4 Rb6 Rc3 Ba3 Qgg5 Ncb4 Qg6 Nhf5 Kf3 Rc6 Kg4 Nh4+ Kh5 Qc1 Qgg5 d1R Qg7 Rd3 Qgg3 Rf3 Ne3 Qe1 Qg1 Qd2 Bg2 Rh3 Be4 Rh8+
3Q1Q1B/K2rn2p/2k3rN/R1P1Rr2/4q2r/RNb2b1P/2Qrn1q1/1bn2b2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 g5 f5 a5 e3 axb4 f6 g4 Bb5 exf6 Bc4 f5 Be2 f4 Bf3 gxf3 Kd2 d5 Kd3 Kd7 g4 f5 c4 b5 a4 f2 h3 f1Q+ Ne2 f3 e4 b3 c5 b4 e5 b2 e6+ Kc6 g5 b3 e7 Nd7 e8R f4 a5 f2 a6 f3 a7 Qe7 g6 Bg7 Bd2 Qg2 Nc1 f1R Rg1 f2 Na3 b1N Ne2 b2 Bb4 Ne5+ Kc2 d3+ Kb3 d4 Ka4 d2 Ka5 d3 Qc1 d1R Ng3 d2 Nc4 Nd3 Qc2 Bg4 Ka6 Nc3 Nf5 Ne2 Nh6 Qh4 Re4 Ne7 Re3 Be5 Bc3 Rhg8 Ra2 Rad8 g7 Rd7 Ra5 Ra1 Re4 d1R Nd2 Ra4 Nb3 Rd2 Rh1 Rf8 g8Q Rf6 Qf8 Rg6 Re3 Rf4 Bd4 Rf5 Re4 Ra1 Rc1 Ra4 Ra1 f1B Ra3 b1B Re3 Bf3 a8Q+ Kc7+ Ka7 Ndc1 Bc3 Qd4 Qad8+ Kc6+ Ka6 Qd5 Bb2 Rh4 Re4 Bc7 Bh8 Be5 Re3 Bc3 Re5 Rdd6 Ka7 Qe4 Na1 R6d5 Nb3 Rd7+
2Q5/pQRqB3/R1Qq3n/5P2/2qq1N2/1b1N1R1b/PbbK2br/r2r2kn w - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 c4 bxc4 e5 f5 Bd3 g5 Bc2 gxh4 Be4 fxe4 b4 Ke7 f4 Ke6 g4 Kd5 b5 h5 g5 c5 e6 d3 e7 Kd4 e8Q d5 b6 d2+ Ke2 h3 b7 e3 g6 h4 g7 c3 Qc2 d1B+ Ke1 c4 Qb2 e2 Bd2 h2 Na3 h3 Qb1 c2 Qf7 c1R Qbf5 c3 Rb1 c2 Nc4 Nd7 b8R Nh6 g8Q Bg7 R1b5 Ra1 Qgf8 c1Q Q8e8 Ne5 Qed7 Bb3+ Kf2 Nd3+ Kf3 e1Q Qde6 Qe5 Na5 Qd7 Qc6 Qc4 Q5e6 Nf2 Rc5 Qed6 Qfe7 Kd3 Qg8 Bb2 Rb4 d4 Ne2 Rh7 Rg1 h1B+ Rg2 h2 Ra4 Rb8 Qge8 Rb5 Rf5 Rd5 Bb4 Rh8 Ba3 Kd2 Bc5 Ke1 Nb7 Kf1 Ra6 d3 Ke3 d2 Rg7 d1Q Bb4 Rh7 Nc5 Be4 Nd3 h1B Rff7 Bhg2 f5 Bh3 Rg3 Bb7 Qec8 Nh1 Nef4 Beg2 Ba3 Kg1 Bc5 Qg4 Rf3 Qg7 Kd2+ Qgd4 Ra5 Ba6 Qe4 Bb5 Ra6 B5a4 Q6b7 Bc2 Qe6 Bab3 Ba3 Qb8 Be7 Qbd6 Qg6 Re5 Qe6 Ree1 Qee4 Rec1 Qec6 Rd1+ Ke2 Ng4 Qg8 Qc8 Bf8 Rh5 Re7 Nh6 Rc7 Bg4 Be7 Qcd7 Qh8 Rh2 Qhc8 Rdb1 Kd2 B4h3 Bg5 Re1 Be7 Red1+
1Qn2q2/3rB2k/q5q1/n5q1/P1n2b2/b1NNQ1Np/1Rnr1RKP/1b1rQ3 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 c5 Bd3 cxd4 Bc4 g6 Be6 fxe4 f5 Nc6 f6 Nb8 Bf5 gxf5 Kf1 Kf7 g4 Kg6 c4 d5 a4 e5 f7 b5 g5 h5 c5 e3 c6 f4 c7 h4 Nd2 d3 Qe2 b3 Rb1 f3 Bb2 d4 Qe1 f2 Qe2 b4 Qe1 e2+ Kg2 e4 Bc1 b2 Qd1 e1N+ Kf1 b3 Ne2 e3 Ng3 Bf5 c8Q Rh7 Qa6+ Nc6 Qb5 Ba3 f8Q Rd7 Qfb4 Na5 Qa6+ Kh7 Qc6 Qf8 Qbc4 Rad8 Qc3 Nc2 Rg1 e2+ Kg2 f1Q+ Kh1 e1B Nde4 d2 Qdf3 d1Q Qe2 d3 Qc7 d2 Nc5 Ne7 Qb8 Nc8 Qee3 Qg4 Nd3 d1R Qce5 Qfe2 Rf1 Bd2 Q5e4 Qh5 Qe8 Qhh6 Q8e6 Qeh5 Kg2 Q5g6 Qe8 Qa6 Rf2 Qh5 Qe1 Bf4 Q8e3 Bg6 Bd2 Qg4 Bb4 Bf5 Rc1 b1N Be7 Nd2 Rb1 Ndc4 Rb2 Qh5 Nc1 R7d2 Nd3 Rd7 g6+ Kh6 g7 Kh7 g8N Qg5 Rb1 b2 Nf6+ Kh8 Ra1 b1Q Ne4 Kh7 Ra2 Qbb6 Rb2 Qbg6 Nc1 Na1 Nc3 Bb1 Nd3 Nc2 Qba7 Kh6 Qb7 Kh7 Qb8 h3+
1q2r3/1npQ1BQ1/2P5/bB5P/qB1R1br1/Rrn2bk1/q1nnQb1N/6K1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nc3 fxg4 Nce2 axb6 Rb1 b5 Ng3 hxg3 Ra1 b4 f4 Kf7 c4 Ke6 d4 Kf5 h4 e5 a4 b5 c5 g5 d5 b3 h5 b4 c6 b2 a5 b1Q d6 g2 Kf2 g3+ Ke1 b3 d7 g4 a6 b2 a7 e3 Qd5 e2 Qf7+ Nf6 Nf3 g1R Qg7 e4 Qg8 g2 Kf2 e1B+ Ke2 g3 Ra3 e3 Ra2 Bh6 Ra1 Ne4 Ne5 Nc3+ Kf3 e2 Ng4 Qa2 Qc4 b1N Nh2 Re8 Qb3 Na6 Qc4 Nc5 Ba3 Nb7 Bb4 Rb8 a8B Na3 Rd1 Nc2 Rd4 Bd2 Qa6 e1B Qe2 Qh4 d8Q Be6 Rc4 Bd5+ Re4 Qf6 Qd6 Qd4 Qe7 Qda7 Qd8 Q7a4 Qd7+ Kf6 f5 Kg5 f6 Bf4 f7 Kh4 Bc5 Bf8 Ba3 Bb4 f8Q Ba5 Qff7 Nc5 Qg7 Rb3 Bb4 Nb7 Qe3 Nb1 Ke2 Nd2 Rd4 Be4 Kd1 Bd5 Bc4 Bf3+ Qe2 Rf1 Qf8 g1N Bf7 g2 Qh6 Kg3 Qh7 Nd8 Bb7 Rf2 Ba6 Nb7 Bb5 Rf1 Kc1 Rf2 Qf1 Ne2+ Kd1 g1Q Qg6+ Kh4 Qg7 Rg2 Qf2+ Rg3 Qe3 Rg4 Qee5 Ng3+ Qe2 Qf2 Rg1 Nge4 Rg3 Qg1 Rd6 Qa7 Rd4 Bh1 Re3 Qb8 Rc3 Rb2 Ra3 Rb3 Qc4 Kg3 Ke2 Nf3 Kf1 Nfd2+ Kg1 Nc3 Qd3+ Bf3 Qe2 Bf2+
kbr3KN/nnp1b3/1r3B2/5qN1/R1B1Qq2/PQPB1N2/q1q1br1n/3n4 w - - 0 1 legal: proof: e4 g5 g4 a5 f4 gxf4 b4 axb4 g5 d5 a3 dxe4 Ra2 h5 Rb2 Qd3 Rb3 Qd7 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 d4 Kc6 h4 e5 c3 b5 g6 Kb7 h5 f5 g7 g3+ Kg2 b3 Kh3 b4 h6 e3 d5 e2 h7 e1R d6 e4 d7 e3 Bd3 f3 Nd2 b2 Qb3 b1Q Nc4 f4 Kg4 f2 Kf5 f1N Ke6 g2 Kf7 e2 Ne5 f3 Qb2 f2 Rh4 b3 Rh1 Na6 Nh3 g1B Bh6 Be7 Ng6 Nc5 Qa2 b2 Bc4 Ra6 Bc1 Ka8 Nhf4 Ne3 Nd5 f1N Bd3 Nh2 Qa1 Nb7 Be4 Qc2 Bd3 b1Q Nf6 Rb6 Ne4 Nd1 Nh4 Rf1+ Nf3 e1Q Qa2 Qg3 Bg5 Qf4+ Bf6 Rf2 Qb3 Qba2 Neg5 Qf8+ Kg6 Qh4 d8Q Qf4 Qd4 Bg4 Qe4 Qc8 Kf7 Qcf5 Nd4 Be2 Ndf3 Bd8 Kf8 Ne7+ g8B Nc8 Kg7 Na7 Bgc4 Re8 h8N Be7 Kf7 Rc8 Kg7 Ng4 Rh4 Nh2 Bg8 Rb5 Qf7 Rf1 Ne1 Qfc1 Qed5 Nc6 Nef3 Ba7 Ra4 Rf2 Qe4 Rb6 Qb3 Q1d2 Bgc4 Qdf4 Rb4 Bb8 Ra4+ Na7 Kf7 Bf8 Kg8 Be7+
2Q2q1Q/bb2nr2/1Q1rKb1n/1p1rRN2/1nb2B2/1Pbk4/PB6/1rRB2n1 w - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 f5 cxd4 b3 a5 f6 a4 Nc3 a3 Na4 exf6 Nb6 f5 Na4 f4 Nb2 axb2 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 b1R e4 d5 c4 f5 h4 b5 h5 g5 h6 g3 h7 f3 Rh6 f2 Rf6 d3 Qc2 f4 Qc3 d4 Qd2 f3 Qd1 g4 Bb2 g2 Be2 f1N Rb6 d2 Rb7 g3 Rf7 d3 Bc1 f2 Rd7 Na6 Bb2 Bg7+ Kf5 Bf6 e5 Bb7 e6 Nh2 e7 f1B e8Q Ra7 Qf7 Ng4 Qg6 Qf8 Qg5 Nb4 Nf3 g1B Rd6 g2 Be5 N4h6+ Ke6 Bd4 Nh4 g1B Qg7 Bc3 Nf5 Ne7 Bf4 Rg8 Qc2 d1N h8B Nf2 Bd1 d2 Rd3 Be2 Re3 Nh3 Qb2 Bf2 Qg6 Ng1 Re4 Rg7 Re3 Rf7 Re5+ Kb6 Bg7 Ra6 c5+ Ka5+ c6 Ba7 Bh8 Kb6 c7 Bc4+ Kd7 Ka5 c8Q Rc6 Bg7 Rc5 Kd6 Rd5+ Ke6 Kb6 Qd8+ Kc5 Qc2 Rb2 Rc1 Rb1 Qh7 Ng4 Qh8 Nh6 Ng3 Kd4 Qg6 Nec6 Qc8 Ne7 Nf5+ Kd3 Bh5 Nh3 Qg1 d1R Qb6 Rd2 Bd1 Ng1 Re4 Bg5 Bd4 Bf6 Re5 Rg2 Qe8 Rg6 Qc8 Be1 Ba1 Bc3 Bb2 Bg5+ Qf6 Rc5+ Kd7 Bh4 Qg7 Re6 Qh8 Bf6 Qbc7 Rec6 Qd6+ Rd5 Ke6 Rc7 Qdd8 Rcd7 Qb6 R7d6+
1nRBBb2/1Qq2npb/5QPk/Q1R3r1/P7/3rn1n1/1KRq4/q1r1q1rN w - - 0 1 illegal: No possible last move, all moves rejected
b1bK2qB/1RQ1R3/3bbrnB/3RNnq1/2bQB3/4q1p1/3PpkP1/4r1n1 w - - 0 1 illegal: No proof kernel
K1R3QR/P1Q1r1N1/1bb1nQ2/8/pr1n4/Pb1bkqRq/p2n1b1N/r4B2 w - - 0 1 illegal: Other
2b4k/K4P1N/Q1qp3n/2q1N2p/BRr1br1q/3R1RqP/4Qn2/1q3Qbn w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Bd2 e4 Bf4 gxf4 Kd2 Kf7 c4 Kg7 g4 h5 a4 e5 c5 b5 c6 f3 h3 b3 c7 e3+ Kd3 b2 g5 f2 g6 e2 a5 e1Q a6 b4 Kc4 d3 Kb5 e4 Kb6 e3 a7 e2 Ra4 d2 Ra2 b3 Qc2 d1N Nc3 b1Q Ra5 b2 Ra3 Qe7 Rb3 Nc6 Nd5 Nb4 Nf6 Nd3 Rb4 Nh6 Nh7 Qc3 Bg2 f1Q Bc6 e1Q Qe2 Qg3 Ba4 Qfg2 Nf3 Qeh4 Ne5 N1f2 Rf1 Nh1 Rf3 Ndf2 f6+ Kg8 g7 Bc5+ Ka5 Rb8 a8Q d6 Qaa6 Rb6 Qf1 Rc6 Qae2 Bd4 Rd3 Rc5+ Kb6 Qc6+ Ka7 Rc4+ Kb8 Nd1 Rf3 Bg1 Rd3 Ndf2 Ka7 Qbc1 Rf3 b1B Rd3 Q3b2 Rf3 Be4 Rd3 Bcf5 Rf3 Qbb1 c8Q+ Qe8 Qa6 Bc8 Rd3 Qc6 Nd7 Kf7 g8R Qc3 Re8 Rf8 Ne5+ Kg8 Rf3 Kh8 f7 Rg8 Re6 Rg4 Ref6 Qcc1 Rd3 Qcc2 Rff3 Rf4 Rb6 Qc3 Rb7 Qa5 Rb4 Qac5+
2qQR1QK/2brB1n1/k3b1bq/2q2P1p/n3BRp1/3NrQq1/6P1/q1r2R2 w - - 0 1 illegal: No proof kernel
R3Q1KN/3p3B/R1QRpkn1/2bb2r1/r1n1Pq2/q4N1P/N1qn4/1n2b2n w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 Kd2 Kf7 Kd3 b5 Ke4 g5 Kd5 e6+ Ke5 d3 e4 d2 c4 b3 f4 g2 a4 b2 h3 b4 f5 g3 a5 b3 c5 g4 c6 Qf6+ Kf4 Bb7 c7 Bc5 c8Q Ne7 a6 Bd5 a7 Rg8 Qe2 d1N Ra5 Nbc6 Nc3 b1N Rh2 b2 Ra1 Rg5 Qc2 Nf2 Be2 Ne5 Nf3 g1N Ra6 g2 Na2 g3 Qe8+ Kg7 Qa4 Nh1 Qc6 Nc4 Bd1 Qc3 Be2 Qa3 f6+ Kh6 f7 Kg6 f8N+ Kf6 Bd1 Bb4 Ng6 Be1 Nfh4 Nf3 Nh8 g1B Rd2 g2 Rd3 Rb8 a8R Nfd2 Bh5 Bc5 Bg6 g1Q Nf3 Qf2 Bh7 Rb4 Rd4 Ra4 Rd3 Rg7 Rd4 Ng6+ Kg4 Nh4+ Kh5 Rg5+ Kh6 Qf1 Bg6 Qf2 Kh7 Qfe3 Bf5 Ng6 Kg8 Qf4 Qb6 Bb7 Rd6 Bd5 Qb5 Nc3 Qb7 b1Q Qc6 Qc2 Qec8 Ncb1 Qe8 Nf8+ Bg6 Re5 Bh7 Ng6 Rc8 Rf5 Rca8 Rg5
2n1Q3/rB6/bP1nB1n1/2N1kNbq/p1p4r/Knqq2R1/2PrnB2/3QQ3 w - - 0 1 legal: proof: b4 d5 e4 dxe4 a4 h5 f4 b5 g4 bxa4 g5 g6 f5 gxf5 Ra3 f4 Rg3 Nc6 Rg2 Nb8 Rg4 hxg4 d4 Kd7 Kd2 Ke6 Kc3 a5 Kb2 c5 h4 f5 g6 g3 h5 c4 b5 e3 d5+ Ke5 g7 a3+ Ka2 e2 d6 e1Q b6 g2 d7 a4 h6 f3 h7 f2 Nh3 g1N Bg5 f4 Qd2 f3 Be3 Nc6 Bg5 Qd1 Nc3 Na7 Be2 f1N Ne4 f2 Rh2 Ba6 Qe1 Ne3 Bf1 Qh5 Nc5 Ne2 Qd1 Nc8 Nb3 Ra7 Qd2 Nf5 Ng1 Nfd6 Bg2 f1R Bh4 Rd1 Qe1 Rd2 Bb7 e6 Rh1 Be7 Bf2 Bg5 Nc5 Nge7 g8B Ng6 Rh4 Nf7 Rg4 Nfd6 Ka1 a2 Kb2 a1N Rg3 Nb3 Nf3+ Kf5 Ka2 e5 Ka3 e4 Nh4+ Ke5 Nf5 e3 Bf7 Nec1 Be6 e2 Qf1 e1Q Qh1 Qf8 d8Q Ne2 Qd7 Qd1 Qe1 Qg7 Qe8 Rd5 Qd7 Qd3 Qe8 Rd4 Qd7 Rd8 h8Q Rh4 Qhe8 Qgh8 Qc6 Qg7 Qch1 Qf6 Ne7 Qff3 Nf5 Qc3 Qd1 Qfd3 Qhe1 Qdf3 Bc6 Nb5+ Ka2 Rd2 Bb7 Nbd6 Ka3 Qfd3
1qN1R3/b1nq4/3B1prp/1b1rN3/4B2Q/1r1P1P2/KQ1n1r1q/1BQrb1k1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 h4 g5 Na3 a5 Nb1 axb4 Nh3 gxh4 Ba3 e5 Ng1 e4 Bc1 e3 a4 Ne7 d3 Qd5 Ra2 Ng8 Rd2 Nf6 Qc2 exd2+ Kd1 Ng8 Qb3 Ke7 Kc2 Qd7 Kb2 Qd5 Qd1 Qd8 Kc2 Ke8 Kb2 Kd7 e4 Kc6 g4 Kc5 g5 Kd4 e5 c5 e6 b5 g6 c3+ Ka1 h3 f3 Ke3 a5 Kf2 g7 c4 a6 b3 a7 h2 e7 c2 e8B b4 Be2 c3 Bb5 b2+ Ka2 h6 Bc4 Bc5 Bb5 Nf6 g8Q Bd7 Qg7 Rg8 Na3 b1R Qg5 Rb3 Ba4 Ne4 Bc6 f6 Ba4 Na6 Nb1 Nc7 Bc6 Rg6 Ba3 c1R Qh4+ Kg2 Qde1 d1R Nd2 c2 Nc4 Nd2 Be4 Bb5 Nd6 Qd7 Nh3 Rd8 a8Q Ba7 Qb8 Rcb1 Rf1 c1B Nc8 h1Q Nf2 Qh2 Ng4 Bb2 Ne5 Bc3 Qf4 Rbc1 Qeh4 Rcb1 Rf2+ Kg1 Qb7 Rf1 Bd1 Rc1 Re2 Rf2 Bc2 Rd1 Qd5 Nb1 Qg8 Be1 Qc1 Nd2 Qd5 Qg4 Qg8 Rd5 Bb1 Qd7 Qe6 Rc3 Qb6 b3+ Ka1 b2+ Ka2 Rb3 Bd6 Qg3 Qd4 Qh2 Bf5 Ne4 Ng4 Bc6 Bc2 Nd2 Re8 Rb6 Ne5 Ba4 Be4 b1Q+ Ka3 Qbb5 Qdb2 Rb8 Ka2 Qb7 Ne7 Qbc8 Bb1 Rb3 Nf5 Qb8 Ne7 Bc6 Nc8 Bb5
b1n1b1Qb/1QqNKN1b/q1N1p1bR/r3q3/2rRBPk1/1p2P3/n7/2n2R2 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 Kd2 Kf7 Kd3 Kg6 Kc4 Kh5 Kd5 b5 a4 g5 h4 e6+ Ke5 d5 f4 b3 c4 d3 a5 b2 a6 g2 c5 b4 e3 d2 c6 b3 a7 d4 c7 d3 Nh3 g1N Qc1 d1B Ra5 d2 Rc5 g3 Ba6 g4 Qc2 g2 Rd5 g3 Rd4 Ne7 Kf6 Nbc6 Nf2 Bb7 c8N Nb4 Nb6 Qc7 Rd6 Na2 Ne4 Ne2 Bd3 g1Q Nc5 g2 Be4 Nc8 Nd5 Nec1 Nbc3 b1B Nb5 Kg4 h5 Qf1 h6 g1Q Ne7 Bg7+ Kf7 Be2 h7 d1B Nd7 Bd3 Nc6 Qh2 Qc4 Qb2 Qb4 Qe5 Rd4 B3c2 Nd6 Qa6 Qb6 Rd8 Re1 Bh8 Rf1 Re8 Qb4 Re7+ Kf8 Be2 Nf7 Bb5 Bg2 Bg6 Be4 Bf6 h8R B1d3 Rh3 Bh8 Rh6 Bh7 Bg2 Bdg6 Be4 Ba4 Ndb8 Rd7 Qb5 Rd5 Nd7 Rc5 Qb4 Rc4 Ke8 Rb8 a8Q Bb5 Qf8 Ba4 Qa7 Ba8 Qg8 Rb5 Qb7 Ra5 Na7 Rc6 Nb8 Rc2+ Kf8 Be8 Nd7 Nb6 Ke7 Rc4 Nc6 Nc8+
3q2b1/p2rn1kB/RR1Rbn2/K1N1p1nQ/PQ6/BrPb1b1Q/3q3b/5q2 w - - 0 1 legal: proof: f4 c5 g4 g5 b4 gxf4 e4 cxb4 Nc3 d5 g5 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 d4 b5 Kd2 f5 a4 Kf7 h4 e3+ Kd3 f3 d5 f2 g6+ Kg7 c3 b3 h5 e2 d6 e1Q d7 g3 Ne2 f4 Bh3 f1B Rh2 g2 Ra3 g1N Ra2 b2 Be3 b1B+ Kd4 b4 Kc4 f3 Kb5 b3 Rb2 f2 Bc5 Be4 Bf5 Nf3 Ba3 Nc6 Qd6 e5 Qb4 Qd2 Rh1 Bh3 Nf4 f1Q+ Nd3 Bc5 Rb1 b2 h6+ Kf6 g7 Nce7 h7 Bg1 Bg6 Be6 Rh6 Ng5 Bf5+ Kf7 Rg6 B6d5 Ra6 Nf6 g8R Be6 Rg6 Bf3 Rd1 Rf8 h8Q b1B Qh3 Bh2 Rb6 Rb8 Ka5 Ba6 Nc5 Bac4 Rh6 Bba2 Bh7 Kg7 Qh5 Rf7 Qh3 Qc2 Rd6 Bd3 Qh5 Qd2 Qh3 Qc8 d8Q Rb7 Qe8 Qd8 Ne4 Rd7 Nc5 Rf8 Qeh5 Bg8 Qbg4 Bae6 Qf4 Qa8 Ra6 Rb8 Qfh4 Rb3 Qb4 Qd8+ Rdb6 Nfe4 Rf6 Bef7 Rc6 Be6 Rd6 Nf6
1N6/kP2p3/pr2bQN1/1n1r2b1/1br3B1/PR1Bb3/K1Q3QB/q1bnnq2 w - - 0 1 legal: proof: c4 d5 f4 b5 e4 bxc4 g4 dxe4 b4 g5 Na3 gxf4 g5 h5 Rb1 Bh3 Rb3 Bg4 Rg3 Bc8 Rg4 hxg4 d4 Kd7 Kd2 Kc6 Kc2 Kb7 Kb2 f5 h4 c5 h5 g3 b5 c3+ Kb3 c2 d5 e3 g6 f3 h6 c4+ Kb2 f2 d6 g2 g7 f4 h7 a6 b6 e2 d7 e1N Qf3+ Nc6 Qh5 f3 Nh3 g1B Bf4 c1B+ Ka1 c3 Bb5 f1R Qg4 f2 Be3 c2 Nc4 Ba3 Bf4 c1B Ne5 Na7 Nc6 Bb4 a3 Nf6 g8B Nd5 Bh2 Rb8 Ka2 Bfh6 Bd3 Ne3 Qg2 Bg5 Be6 Nd1 Nf4 Nb5 Bg4 Qe8 d8Q Be6+ Qdd5 Qh5 Qe4 Rhd8 h8Q Ka8 Qhd4 Qh8 Qf6 Kb7 Qdc4 Rd5 Qc2 Rc8 Nb8 Rc4 Qg2 Ka8 b7+ Ka7 Qf5 Qd4 Ng6 Qa1+ Kb3 Nf3 Qf4 Re1 Qf7 f1Q Qf6 Bg1e3 Rg1 Re2 Rh1 Ne1 Rg1 Qf5 Rf1 Rd2 Rf3 Rd6 Rh3 Rb6 Rg3 Qae5 Ka2 Qf1 Bde2 Rd5 Rf3 Bd4 Rb3 Bde3 Bd3 Qa1+
k1B2nrN/1b1p1n2/3R4/b1bPnr2/2bN1BQb/b1q5/2P2Np1/2bKQ2Q w - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 a4 bxa4 e5 hxg4 b5 f6 Ra3 fxe5 Rb3 e4 Rb4 cxb4 f4 e5 h4 a5 d4 g5 d5 g3 h5 g2 b6 a3 f5 e3 b7 b3 h6 a4 h7 e2 f6 a2 Ba3 a1N Bd6 g4 Kd2 e1B+ Kc1 e4 Qd3 a3 Qh3 b2+ Kd1 a2 Bg3 e3 Be2 Nh6 Nf3 g1B Nh2 Qa5 f7+ Kd8 Bf2 Kc7 Ba6 g3 Qf5 g2 Be2 Nc6 b8N Kb7 Qf4 Rg8 h8Q Qc3 Nf3 Ba3 f8Q Nb3 Rh4 a1B Q4f5 Nbd4 Ng5 Ne6 Qe8 Nf8 Qg4 Nf7 Rh6 Nce5 Nd2 b1B Bg3 Ba2 Rd6 Bc4 Bf4 Bh4 Nc6 B1b2 Nd4 Bc1 Nde4 Ra4 Qe7 Ka8 Nf2 Bb7 Bd3 Ba2 Ba6 Bc4 Qhh5 Rb4 Qh3 Rb1 Qh1 Rb6 Qg4 Rc6 Rh6 Rf6 Qb4 Rf5 Rd6 Bc6 Bc8 Bb7 Ngf3 Bd8 Nh4 Ba5 Nh3 Bf2 Ng6 Bh4 Nh8 Bb6 Nf2 Ba7 Qe2 Bc5 Qd2 e2+ Ke1 Ka7 Qb3 Qg3 Qf3 Ka8 Qb4 Bcb2 Kd2 e1B+ Kd1 Bc1 Qg4 Qd3+ Qd2 Qg3 Qde2 Ba5 Qee1 Qc3
b1Nbn1n1/pR1K2k1/3r2B1/1r4R1/1P2Q2p/1Qbb3P/2nQ4/R1q1qrBq w - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Nf3 g4 Nbd2 exf6 Ng1 f5 Ndf3 gxf3 Bd2 f4 Be3 Ba6 Bc1 Bc8 Kd2 d5 Kd3 f5 c4 Kf7 g4 h5 b4 h4 e4 f2 c5 f3 e5 f4 h3 a3 e6+ Kg7 e7 a2 e8Q Na6 g5 Nc7 g6 Rh5 c6 Qe7 Qd7 Bb7 Be2 f1B Qc8 f2 Bb2 f3 Qg4 Rd8 Qe4 Rd6 Qd2 Ne8 c7 Ba8 c8R Qb7 Rd8 Be7 Rb8 Bd8 Rh2 Qc6 Rg2 Qc1 Rg5 Qe1 Rd1 a1B Rb7+ Kf6 Bc1 Bb2 g7 Bc3 Kc2 d3+ Kb3 d4 Kc4 Nh6 Bb2 Ng8 Ra1 Qc1 Kb5 Qe1 Qc2 d2 Bd3 d1Q Ne2 Qc1 Ng3 Be2 Kc5 f1Q Qd2 f2 Nf5 Qh1 Ne7 f1R Bb1 d3 Nc8 Rd4 Kc6 Rd7 Qe3 d2 Bc2 d1N Qd2 Bd3 Bb1 Nh6 g8Q Ne3 Qb3 Ng8 Bc2 Rd5 Bb1 Rb5 Kd7 Rh6 Bc2 Rg6 Bb1 Kg7 Bc2 Bcf6 Bd4 Be5 Bb1 Nc2 Bg1 Na3 Bc2 Bc3 Bd1 Nc2 Bg4 Kf8 Bh5 Ra6 Bg6 Kg7 Qde2 Rab6 Qd2 Rd6+
6b1/3q3N/BnQ2K2/1Bqqq3/2PrpR2/pnR4b/QR2Pb2/1nBkr2r w - - 0 1 legal: proof: f4 b5 g4 g5 a4 bxa4 d4 gxf4 Nd2 c5 Ne4 cxd4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 f5 b4 Kf7 h4 Kg6 c4 e5 b5 d5 b6 a5 b7 d3 Rh3 d2 Ba3 d4 Rh2 e4 Nf3 d3 Bc1 a3 Nd4 a2 Rg2 g3+ Kg1 f3 Nc6 f2+ Kh1 f4 h5+ Kf5 h6 a4 g6 f3 h7 Kf4 g7 Ke3 Nd4 a3 Nb3 Qd6 Na5 Nf6 g8B Qe5 Bd5 Be6 Qa4 Nbd7 b8R Bc5 Bb7 Bg8 Qb5 Nd5 Qb2 N7b6 Ba6 Nc3 Nb3 Nb1 Nd4 Ra7 Bb5 Rd7 Ne6 Rd6 Rg1 Rd4 Bh3 f1R Nf8 f2 Bc8 Re1 Bca6 f1B Rb7 Bh3 Rf1 g2+ Kg1 Qe8 Kh2 Qb8+ Rf4 Qe5 Kg3 g1Q+ Kh4 Qf5 Rg4 Qe5 Rb8 Kf2 Qb3 d1Q Qc2 d2 Rf4+ Ke3 Qb3+ Nc3 Rb1 a1N Qa2 Nb3 Rb2 Nb1 Rd8 Qd5 Rb8 Qc2 Rb7 Qc3 Rb8 Qd7 Rc2 Qf2+ Kg5 Qa5 Kf6 Qh2 Bb2 d1Q Rc3+ Qd3 Rb7 Kd2 Bc1+ Kd1 Rb8 Rd5 Rb7 Bf2 Rb8 Rd4 Rb7 Qb4 Rb8 Qc5 Rb7 Bge6 Rb8 Rg8 h8Q Rgg1 Nh7 Rh1 Qc8 Bf7 Rb7 Bg8 Qc6 Qdd5 Rg7 Qd2 Rgg3 Qd7 Rc2 Qa5 Rgc3 Qcd5 Rb2 Qg3 Ba4 Qac5 B4b5 Qh2 Rf5 Qb8 Rf4 Qbe5+
B2n1rq1/4b1pr/kn2P3/bNQ5/2b2qKQ/qN2R1PN/p1Q1nrn1/2B5 w - - 0 1 legal: proof: b4 e5 f4 exf4 a4 h5 d4 b5 d5 bxa4 g3 h4 Ra3 h3 Rf3 c6 Rf2 cxd5 Rg2 hxg2 Ba3 d4 Bb2 Bc5 Bc1 Bf8 Kf2 f5 Kf3 a5 c4 d5 h4 Kd7 e4 Kc6 e5 Kb6 e6 a3 h5 a2 h6 a1B h7 d3 b5 d4 Rh2 d2 Rh1 d3 Nh3 g1N+ Kf2 f3 Nf4 a4 Ba3 Ne7 Qe1 d1Q Qb4 d2 Bc1 a3 Ne2 a2 Na3 f4 Nb1 Bc3 Qa3 Qa4 Bg2 Ba5 Nbc3 Ba6 c5+ Kb7 b6 Nec6 Rh4 Be7 Nb5 Nd7 Rh5 d1Q Re5 Qd2 Re3 Qg8 Qc3 Qb2 Qc2 Qba3 Bh1 Nd8 c6+ Kc8 c7 Kb7 Ned4 Ne2 Nb3 Rc8 N5d4 Bc4 Nb5 Ka6 b7 Rb8 c8Q Nb6 Qc5 Rc8 b8Q Q4b4 Kf1 f2 Kg2 f1N Kh3 f3 Qf4 f2 Qh4 Qd2 Bc6 Qd4 Ba8 Qf4 Rc3 Ne3 Rd3 Ng2 Re3 Qf6 Kg4 f1R Qhg5 Qe8 Qh4 Rf8 h8N Rf2 Nf7 Qf4+ Kh3 Rh8 Ng5 Rh6 Qg6 Rh7 Qc2 Qd6 Kg4 Qg8 Nh3 Qc7 Ng1 Qf4+ Kh3 Nc6 Nf3 Rf8 Ng5 Qff7 Kg4 Nd8 Nh3 Qf4+
5QR1/1np1Qq1n/Pp1r2Rb/4RnN1/2r3Bn/kP2n1n1/b4K1b/2r1Q2N w - - 0 1 legal: proof: h4 d5 f4 e5 c4 dxc4 b3 exf4 h5 a5 h6 a4 Bb2 a3 Rh2 axb2 Rh5 gxh6 Rh2 h5 Rh1 h4 e4 Ke7 g4 Kd6 a4 Kc5 d4+ Kb4 g5 f5 g6 h5 g7 f3 e5 c3 d5 h3 a5 f2+ Ke2 h2 a6 b6 e6 c2 d6 c1B e7 h4 e8R h3 d7 f4 Re5 f3+ Kd3 Qe8 d8Q Rh4 Qc2 Nc6 Ra2 Bh6 Re2 Nf6 g8Q Qf7 Qd5 Na5 Ra1 Rc4 Qd7 Nh7 Nc3 b1N Na2+ Ka3 Re8 Nb7 Qc6 Nd2 Be2 f1N Qf6 f2 Qd1 Nf3 Re5 Bd6 Qe1 Ne3 Qf8 f1R Q6e7 Nh4 Bg4 Bf5+ Ke2 Rd8 Nf3 Bb1 Nc3+ Ba2 Rg1 h1N Ne4 h2 Nfg5 Rd7 Nf2 Ng3+ Kd3 Rd8 Nh1 Ngf5 Ke2 Rd7 Qg3 Rfc1 Qe1 R1c3 Rd1 Rc1 Kf2 Rd8 Rc5 Be5 Rd6 Rd7 Rg6 Rd6 Ng3 Bf4 Re5 h1N+ Ke2 Nf2 Nh1 Ne4 Rg2 Neg3+ Kf2 Rb1 Rg1 Rbc1 Rg8 Ne2 Ne6 Bb1 Bh3 Bh2 R1g6 Ba2 Ng5 Neg3 Bg4 Ra1 Ne4 Rd1 Ng5 Rdc1
1B1rBn1q/1n2n1R1/krn1n3/4Bb1N/qp1PQ2K/p5n1/1P1b2Q1/1R3n1Q w - - 0 1 illegal: No proof kernel
1BK5/1p4rP/kP4RR/2rb1N1n/2p2bbb/1QNQrN2/2nbQ3/2r1n2q w - - 0 1 legal: proof: f4 d5 g4 e5 c4 dxc4 b4 exf4 b5 h5 b6 hxg4 Bg2 a6 Bc6+ Qd7 Bb5 axb5 Kf2 Qd3 Ke1 Qd8 Kf2 Kd7 d4 Kc6 a4 f5 e4 g5 h4 c3 e5 b4 h5 c2 e6 f3 Kg3 b3 h6 f2 e7 f1B e8N f4+ Kf2 f3 Ke3 g3 Ke4 f2 Ke5 b2 a5 Kb5 a6 c5 a7 g2 d5 g4 d6 c4 h7 g3 d7 Nc6+ Ke6 Bh6 Rh4 Nd4+ Kd6 Nf6 Nf3 g1R Ra6 g2 Ng5 Nf3 Bd2 c1B Rh5 Ne1 Rh2 Nh5 Bb4 Bd2 Nf7 Qh4 Kc7 Bhf4+ Ne5 Rg8 d8Q Bg4 Ra3 Rg5 Rd3 Ka6 Nc3 b1N Ng7 Na3 Qe2 Nac2 Nf5 Rb8 Qd6 Re8 Nf3 Re3 Kc8 Rg7 Qd7 Rh1 Rd6 g1B Rg6 Bg2 Qd8 f1R Qdd3 Bf2 Bd6 Qh3 Bb8 Bh4 Ng1 Bd5 Nf3 Rhg1 Rh1 Ng2 Rh2 Rb1 Rh1 Rgc1 Rh2 Nge1 Rh1 Ka5 Rh2 Rb5 a8Q+ Kb4 Qa2 Rc5+ Rc6 Qf1 Qb3+ Ka5 Rg2 Qh1 Rg1 Bh3 Rg6 Ka6 Rh6 Bg4 Rg6 Rb5 Rh6 Ra5 Rcg6 Rc5+
1n3Q1q/bP2Q1Bk/Bn3r1N/KQ5B/1R2r3/1b1rp1rp/2n1nrRP/q7 w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 Nc3 f5 Nce2 fxe4 f5 g5 Nf4 gxf4 Kd2 Kf7 b4 Kg7 g4 a5 c4 e5 g5 h5 g6 d5 c5 d3 Kc3 f3 c6 f2 c7 h4 b5 a3 b6 a4 b7 d2 Bg2 f1R Qg4 d1N+ Kc2 h3 Qh4 e3 Qg3 d4 Bf3 a2 Be2 a3 Kb3 d3 Qg2 d2 Bf3 e2 Qg4 e1R Qh4 e4 Bb2+ Nf6 Rb1 a1Q Ne2 a2 Bh5 Nc3 Ng3 d1R Rg1 Bc5 Rg2 Ba7 Kb4 Be6 c8Q Bb3 Qc4 Nfd7 Qb5 Nb6 Ka5 Rd3 f6+ Kh6 g7 Ne2 g8B Rf2 Bd5 Rg8 f7 Kh7 Nf5 Rgg3 Qe7 Qh8 Bg7 e3 f8Q Ref1 Nh6 Rf6 Qbe8 R1f2 Bc6 Na6 Q8d7 Re8 Bb5 Nb8 Rb2 Rdd6 Ba6 Rd3 Qc5 Re4 Qce7 Qh1 Qd5 a1N Qb5 Nc2 Rb1 Be6 Rb4 Bb3 Qec5 Qb1 Qce7 Qa1+
1Q1Bbq2/n1p1R1qb/2PR2Bn/q1q1r1kq/2Q1r3/3p1B2/b1Pb3N/KQ6 w - - 0 1 illegal: Other
q2NQ1r1/1b1B2N1/2N4n/1pb2rK1/bP3rbP/3pQ1q1/2rn3k/2R1bRR1 w - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 f5 cxd4 b3 a5 f6 a4 Nh3 a3 Bb2 axb2 Ng1 exf6 Nc3 f5 Nb1 f4 Kd2 Ke7 h4 Kd6 c4 Ke5 a4 g5 e4 f5 a5 d5 c5 b5 a6 d3 a7 d4 b4 f3 c6 Kf4 e5 Kg3 e6 f2 c7 f4 e7 f3 e8Q Nd7 Ra5 Nb6 Qg6 Bb7 c8R Nh6 Ra1 Rg8 Ra2 Bc5 Qb3 Nc4+ Kd1 d2 Rc6 Rc8 Bh3 f1R+ Kc2 d1B+ Kd3 f2 a8N Nd2 Na3 b1B+ Nc2 Qa5 Nc7 Qa8 Ra7 Ba2 Qc3 Be6 Ne3 Ba4 Nf3 Bd7 Ne5 Be6 Rg1+ Kh2 Rb6 g3 Nf5 g4 Nc6 g2 Ng7 g3 Qe8 Bg4 Qb3 Rb1 Nce6 f1R Qc3 Rf5 Ned8 Rbf1 Qc1 R1f4 Raa6 Bad1 Ra1 Ba4 Qa3 Rc7 Rac1 Rc8 Rgf1 g1Q Qc3 g2 Ra6 Bb3 Raa1 Ba4 Qb3 Qf2 Qbe6 g1B Qe3 Qg3 Rab1 Bf2 Rg1 Rf6 Rcf1 Be1 Rc1 Bf3 Bf5 Bg4 Bd7 Rf3 Ke2 R6f5 Kd3 Nb1 Ke4 d3 Qf7 R5f4+ Ke5 Nd2 Qe8 Nf5 Kf6 Nh6+ Kg5 Rf5+ Kg6 R3f4 Na5 Bb6 Q8e6 Qg2 Qe8 Rc2 Nac6 Qf3 Q3e4 Bc5 Qe3 Rf6+ Kg5 Qg3 Na5 Rff8 Nac6 R8f5+
2Nk2bQ/qB1n4/1N1R1b2/bpbr2bK/1P3n1p/3Nr1Q1/5BQP/1q2rr2 w - - 0 2 legal: proof: e4 b5 g4 d5 b4 dxe4 a4 bxa4 Ra3 f5 Rd3 fxg4 Rd5 c6 Rb5 cxb5 Ke2 h5 f4 a5 d4 g5 c4 e5 f5 e3 d5 a3 f6 g3 Kf3 a2 d6 a1R c5 g4+ Ke2 h4 c6 a4 c7 g2 Qe1 g3 Kf3 e2 Nd2 e4+ Kf4 e3 Kg5 a3 Bb2 a2 Bc1 Qe7 Qf2 e1Q Nh3 g1B Bc4 e2 Qe3 g2 Qf2 Ra3 Qe3 Bh6+ Kh5 Be6 c8N Qa7 Bd3 Ne7 Qg3 Bc5 Nf4 Nd5 Nc4 Bg5+ Bh7 Rb1 Be3 a1B f7+ Kd7 Bd4 Rd8 f8Q Bb6 Rf1 g1B Be4 Ba5 Qh8 Bg8 N4b6+ Ke8 Bc5 Baf6 Qg2 Qc1 Rd1 Qc2 Rd3 Rf1 Qg3 e1R d7+ Kf7 Rd2 Qb1 Bd4 Rd3 Qg2 Re8 d8Q Bf2 Qc7+ Nd7 Rd1 Re5 Qc3 Ke8 Bc5 Rd2 Qcg3 Rde2 Rd4 Kd8 Nd3 Rf5 Kg4 Nf4 Bb7 Be3 Rd6 Rd5 Bd4 Bc1 Bf2 Be3 Ba8 Bc5 Bb7 Nh3 Kh5 Re4 Nb2 R4e3 Nd3 Nf4+
3r1n1b/4Q3/B2p1Q2/1Qq1b2K/2PPR2R/2kr3b/bR1nb1pN/N1rrq3 w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 Kf2 Ke7 a4 Kd6 d4 Kd5 h4 Kc4 a5 g5 a6 b5 c3 f5 h5 b3 a7 b4 h6 f3 Kg3 d6 h7 f4+ Kf2 g3+ Ke1 f2+ Kd2 g2 Nh3 g1B Ra5 f3 Ke3 g4 Kf4 g3 Ra1 g2 Ra5 Nd7 Kg4 Qc7 Rf5 Bh2 Ng1 Be5 Rh4 Qc5 Qd2 Bfg7 Qc1 Nf8 Qe1 Nf6+ Kg5 Bd7 Rff4 Ne4+ Kh5 Nd2 Re4 Rd8 a8R Bh3 Rb8 Rg8 Rb7 Bh8 Rb6 Rg3 Na3+ Kd5 e3 b1R Ba6 f1R Nc2 b2 Na1 f2 Nf3 b3 Nh2 Rd1 Qe2 b1Q Qb5 b2 Rb8 Bhf6 h8Q Bg7 Qh6 Bh8 Qf6 Rg1 Rb6 f1B Qg6 Be2+ Reg4 Beg7 Qd7 Rdf1 Rb5 Ne6 e4+ Kc4+ e5 Qb4 Qb7 Nf8 e6 Be5 Qf6 Qc5 Qb6 Re1 e7 Rd3 e8Q Qd1 Qa7 b1B Qae7 Ba2 Q8d7 Qa4 Qb7 Rc1 Qb6 Qd1 Rb2+ Qb5 Qbb7 Qf1 Qb8 Qf2 Qb6 Rgd1 Qbb7 Qe1 Qb8 Rf3 Re4 Kd3 c4 Qc5 Qb6 Kc3 Qb5 Rd3+
k5r1/2QRq2p/1n2Bp1b/1r4n1/1Rb4P/1Brb1q2/bQ2QP2/N1b1Kr1R w - - 0 2 illegal: No possible last move, all moves rejected
1R1r1n2/4np1b/1Rb3kp/PR2rb1N/1NQQ1PrB/N2q4/1r5q/1K4bb w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 a5 e3 axb4 h5 e5 h6 e4 Bd3 exd3 Qg4 gxh6 Qf3 h5 Qd1 h4 Kd2 b5 a4 d5 g4 h6 f4 b3 c4 b4 g5 b2 e4 b3 e5 h3 a5 h2 c5 Nd7 c6 Ne7 e6 Bb7 g6 Rc8 c7 Rg8 g7 Bc6 Na3 b1B Qh5 b2 Kd1 d2 Nc4 Bf5 Qf3 b1B Qe4 Bh7 Ke2 d1R Bb2 Re1+ Kd2 d3 Ne2 d4 Ng3 Bf5 Qd5 Re5 Kc1 Bh7 Rf1 h1B Nh5 Bf5 Ba3 d2+ Kb2 d3 Qd4 Bc2 Rab1 d1Q Rf3 d2 Rb3 Qf3 Rb6 d1R Ka2 Qg4 R1b5 Qg1 Bb4 Qg3 Na3 Qh2 Be1 Bh7 Bh4 Bcf5+ Nc2 Rd2 Kb1 Rd3 Na3 Rg3+ Qe4 Rg4 Qd3 Rh8 g8N Bg7 Qe4 Kf8 Ngf6 Rg8 Nd5 Bf6 Ng3 Kg7 Nb4 Nf8 Nh5+ Kg6 Qd3 Qd7 Qe4 Rd8 c8Q Rg2 Qc7 Rc2 Qa7 Qd3 Qc4 Red5 Qd7 Bd4 Qd6 Be3 Qd7 Re5 Qdd4 Nc8 e7 Bg1 e8R Ne7 Be1 Rd7 Reb8 Rd8 Ng3 Kf6 Bf2 Rg4 Nh5+ Kg6 Bh4 Rb2+
1B2n3/1Q2n1nN/1bp1p1bk/b2nqr2/4nR1r/1R2Q2Q/1PKbP3/N3q2R w - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 h5 g5 b5 g6 bxa4 Nh3 h4 Ng1 h3 Bg2 hxg2 Nh3 fxg6 Ng1 g5 Ra2 g4 Ra3 Kd7 Ra1 Ke8 h4 Kf7 f4 Kg6 d4 a5 Kd2 g3 f5+ Kh6 d5 g5 h5 c3+ Kd3 c6 d6 a3 f6 a2 f7 a4 d7 a3 Qa4 c2 Bd2 c1B Qa7 Qc7 d8R Na6 Qd4 Bf5+ Kc3 e6 Rh4 Qe5 Bf4 Bd2+ Kb3 Bfb4 Rd5 Rf8 Rd6 Ne7 Qf2 Bg6 Qf3 Nc7 Qc3 Ne8 Nh3 g1Q Nf2 g2 Rd7 Ba5 Rh3 Qe1 Rh1 g1N Qe3 Nh3 Ne4 Nf2 Nf6 Ne4 Rb7 Rh7 Rf1 Rhh8 Bh2 Rh7 Rf4 g4 Rb5 g3 Kc2 g2 Rb3 g1B Bg3 Rhh8 Nh7 Bf2 Qc3 Bfb6 Qe3 Rfg8 f8Q+ Rg7 Qg8 Rf7 Bh2 Rf5 Qf7 Nd5 Qb7 Ne7 Nf6 Rh7 Nc3 Rh8 Na4 Rh7 Nc5 Rh8 Rb1 a1N+ Kd3 a2 Nh7 Nc2 Rd1 Qf2 Rh1 Qe1 Bg3 Nd4 Bh2 Nb5 Kc2 Nbc3 Bg3 Ncd5 Bh2 Rg8 Bg3 Bf7 Bh2 Rg4 Bg3 Rh4 Bh2 Kg7 h6+ Kg6 Bg3 a1N+ Kd3 Qf1 Rb5 Nb3 Nf6 Qe1 h7 Qb8 h8Q Rfh5 Kc2 Rg4 Rff1 Rhg5 Qh2 Rh4 Nh7 Kh6 Qh3 Bg6 Rb4 Qf4 Rf3 Qf6 Bb8 Qe5 Rf4 Rgh5 Kd3 Nd4 Nb3 Ndf5 Na1 Nfg7 Kc2 Rg5 Rb3 Rf5
1B1R1Qbq/Qq2p2q/2p1q2b/QP1b3b/Nr5r/3R1NKn/3qP2n/kN6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 d5 f5 dxc4 Bh3 g6 g5 gxf5 Bg4 hxg4 Ra2 f4 Ra3 Be6 Ra1 Bc8 Kf2 Kd7 d4 Kd6 b4 Kd5 h4 a5 b5 f5 g6 c6 g7 c3 h5 Kc4 d5 f3 h6 f4 h7 a3 d6 g3+ Kf1 c2 d7 Kb3 Rh2 a2 Bb2 g2+ Kf2 a4 Na3 Qc7 d8Q Qb7 Q8d2 Nd7 Bf6 Nc5 Rh5 Be6 Qd7 Ne4+ Ke1 Nf2 Q7d4 Nh3 Qc5 f2+ Kd2 f1B Ke1 f3 Rf5 f2+ Kd2 Nh6 Ke3 Ng4+ Kf3 Bg8 Rf4 Nh2+ Kg3 Ra7 Qe1 c1Q Be5 Qd2 Nf3 g1Q+ Kh4 Qg6 Re4 Bg2 Qf1 Qe6 Bc7 Kb2 Rd1 a1Q Re3 Qb1 Bb8 Ka1 Qe1 f1B Rd3 Bh1 Rd8 Bfg2 Kg3 Ra6 Qa7 Ra5 Nc4 a3 Nb2 a2 Rd3 Ra3 Na4 Rb3 Rd8 Rb4 Rd3 Bf7 g8N Bh6 Nf6 Bg6 Ne4 Bh5 Ne5 Bgf3 Nec3 Bd5 Nf3 Bb3 Nd4 Bhd5 Nf3 Rf8 h8Q Rff4 Qf8 Rh4 Qe8 Qbc1 Nb1 Qcc2 Re3 Qh7 Rd3 Qef5 Qd8 Bg8 Qda5 Qe6 Rd8 Bd5 Qef2 Qe1 Rd3 Qd2 Nc5 Kb2 Qf1 a1Q Na4+ Ka2 Ne1 Qab2 Qf8 Qbh8 Nf3 Ka1
1b1n3R/1qQ5/b2P1br1/1r2nb2/Qn4RN/1N4p1/1p2NrPq/RnB2K1k w - - 0 1 illegal: No possible last move, all moves rejected
r1q1bQ2/4K2R/2N1qp1r/1Q3PB1/b4n2/P7/k1rRpQnr/2bnRn1B w - - 0 1 legal: proof: h4 c5 e4 a5 b4 d5 h5 dxe4 h6 a4 Nc3 cxb4 Nb5 gxh6 Nd4 h5 Nb3 axb3 Bc4 h4 Bd3 Bh6 Bf1 Bf8 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Kg5 h5 f4 b5 g4 f6+ Kg6 e5 Kf7 h3 c4 b2 a3 b1N g5 e3 f5 e4 d3 b3 g6 h2 g7 e2 Ra2 e1N Rd2 b2 Rc2 h4 Rc3 h3 Ne2 b4 Rb3 e3 Qd2 Bd7 Qc3 Rh6 Ng3 e2 Bg2 Be8+ Ke6 Ne7 g8Q Nbc6 Qg6 Nd5 Rf1 h1Q Bf3 h2 Nh5 Nce7 Bg5 Ng2 Nf4 Nd2 Re1 b1R Qb2 Nde3 Nd5 Rc1 Qh5 Ndf1 Qh4 Rc3 Qf2 Ng6 Ne7 Rc2 Nc6 Bd6 Rc3 b3 Qb1 b2 d4+ Kb6 d5 Kc5 Be4 Bf4 d6 Qc8+ d7 Qg1 Rb3 h1R Rb7 R1h2 Bd5 Rd2 Qd3 b1B Qb3 Bc2 Qb2 Qc7 d8R Ba4 Ra7 Qb6 Rh7 Rc2 Be4 Qh1 Rd2 Qd8 Qb7 Qc8+ Qd7 Bg3 Bf3 N6f4+ Ke7 Qg1 Rd4 Nd1 Rd2+ Nge3 Bh1 Qg2 Qb7 Qd5 Qf3 Neg2 Qf2+ Qd4 Qb8 Qe3+ Qe5+ Kb6 c5+ Kb5 Nd8 Kc4 c6 Kb3 c7 Qb6 Nc6 Ka2 Qb5 Bh4 Qe3 Bf2 Qf3 Be3 Qf2 Qca6 c8Q Qc7+ Rd7 Bc1 Qd8 Qcc8 Rd2 Bg6 Qf8 Be8 Qb4 Qc4 Qb5 Q4e6+
5R1Q/1npbQ1q1/Brn2p2/2qBRP2/2n2Q2/1rb5/bk1P3B/N1qqK2n w - - 0 1 illegal: No possible last move, all moves rejected
k4rb1/4p2Q/qBb1PB1b/R1P1prnB/Q1r4n/2r1Q1Kq/1qN5/bN6 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 e4 a5 g4 axb4 e5 hxg4 e6 f6 Ra3 Qa5 Re3 Qd8 Re5 fxe5 h4 b5 f4 d5 Kf2 g5 c4 b3 a5 b4 a6 b2 f5 d3 f6 d4 a7 d2 c5 g3+ Kf3 b3 h5 g2 h6 g4+ Kf2 g3+ Kf3 d3 h7 Qa5 f7+ Kd8 Kg4 Kc7 Nh3 Kb7 Nc3 g1Q Nf4 b1B Nfd5 g2 Qf3 d1R Bb2 d2 Nb4+ Nc6 Rh5 Nh6+ Kg3 Qe3 Na4 g1B Nb6 Bd7 Ba3 b2 Bb5 Qa6 Nc2 Rf1 Ba4 d1R Nc4 Nf5+ Kh3 Bh6 f8Q Rd4 Qf7 Raf8 Bb4 Nh4 Nd2 Rc4 Ba5 Ka8 Bb6 Be8 Qg3 Nd4 Qg7 Qc3 Qe3 Ndf3 Kg3 Bc6 Rf5 Qd3 Rf4 Ng5 Rd4 Rhg8 h8B R1f5 Qh7 Rc3 Rb4 Rc4 Rb5 Rg7 Qf3 Bd4 Qe3 Rgf7 Ra5 Rf3+ Kg4 R7f5 Bf6 Qa3 Qe1 Rd3 Qe3 Rdc3 Kg3 Qb3 Nb4 Bd3 Nc2 b1Q Bb5 Q1b2 Nb1 Be2 Ba4 Bh5 Bb5 Bf7 Ba4 Bf3 Be8 Bg8 Bh5 Bc6 Ra4 Rd3 Ra5 Qab5 Kh2 Q2c3 Ra1 Kb7 Qe2 Qcb4 Ra2 Ba1 Qe1 Qb2 Qe2 Qe1 Qe3 Qf1 Kg3 Rdc3 Ba5 Qb6 a8Q+ Kc7 Qa6 Kb8 Ra4 Qa7 Bb6 Ka8 Qb5 Qa6 Ra5 Qh1 Qa4 Qh3#
1K1RN1rn/p1q3qB/P2bq2r/R1nk4/P1r5/2bp1bN1/R3QQ1q/1r5Q w - - 0 1 illegal: Other
3bn2B/2rq4/p3k1K1/PN1p2RB/Q3bP1B/1q5r/br3QRq/2qQ2nr w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Ne4 hxg6 Bg2 g5 Ng3 fxg3 Bf1 g4 Kd2 Ke7 b4 g5 f4 c5 a4 d3 Ke3 d2 Ke4 c3 Kf5 g2 e4 c4 h4 g3 e5 g4 a5 a6 e6 c2 b5 c3 b6 Nf6 h5 Nc6 b7 Nd4+ Kg5 Ne8 b8Q Ne2 Bb2 c1R h6 c2 Qa7 Rb8 Qe1 d1B Bd4 Rb2 Nh3 g1R h7 g2 Kf5 g3 Rh2 Rh1 Kg6 g1Q Bg7 g2 Ng5 Qe3 Nf3 g1Q+ Rg2 Qb3 Nd4 Qh2 Nb5 Ng1 Qaf2 Bf3 Qd1 d5 Be5 Qd7 Be2 Bg7 Bc3 Bf6 Be1 Bh4 Nc3 Kd6 e7 Ke6 Nb5 Rg8+ Kh6 Rg3 h8B Rh3 Ra3 Ra1 Rg5 c1Q Kg6 Rab1 Rg2 Rc2 Ra2 Rc7 Rd2 Rb2 Rg5 Bg2 Bh5 Be4+ Rf5 Bb1 Rc2 Bf6 Rg5 Ba2 Rd2 Ng7 e8Q+ Be7 Qf8 Bd8 Qb4 Ne8 Rc2 Bb7 Qa4 Bc6 Na3 Bb5 Rd2 Bf1 Nb5 Bc4 Qf1 Be2 Bh4 Bg4 Rg2 Bf3 Qf2 Be4+
3r1N1Q/1knQp3/1n2B1qb/4K2p/3N1R1Q/q1qnRNqP/P3b3/3rbb2 w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Bd2 e4 Bf4 gxf4 Kf2 d5 g4 Kd7 c4 Kc6 c5 b5 f6 h5 h3 e3+ Kf3 e2 f7 e1B g5 d3 g6 b3 g7 d2 Bd3 b2 Be2 d4 Ke4 d3 Qc1 d1N Na3 b1Q Nf3 b4 Rf1 b3 Ng5 d2+ Bd3 f3 Ke5 b2 Ne6 f2 Nb5 Kb7 Qc2 Qa5 Ng5 Nf6 g8Q Nbd7+ Kd4 Nd5 Qc4 Qc1 Bf5 b1Q Bh7 Nc7 Bf5 Nb6 Qh7 Qaa3 Ke5 Bh6 f8N Nb2 Nd4 d1Q Be6 Qcc3 Nf3 Qdb3 Qg7 Rg8 Qh8 Rg1 Qa4 Qg6 c6+ Kb8 Rd1 Ba6 Rd3 Rh1 Re3 Be2 Qb4 Ka7 Qc4 Rd8 Qb4 Na6 c7 Kb7 Rg1 f1B Rg4 Rg1 Rf4 Rh1 Bg4 Qbg8 Be6 Qg3 Qc4 Q8g6 c8Q+ Ka7 Ng1 Nc7 Qd7 Kb7 Nf3 Rg1 Qd3 Rh1 Qf5 Rg1 Qg5 Rh1 Qh4 Rg1 Bf5 Nd3+ Ke4 Bd2 Qg7 Bg2 Qgf6 Rd1 Qh8 Nf2+ Ke5 Bgf1 Bg4 Be1 Be6 Nd3+
1B1R3r/3n2Q1/bp1bQ1Nq/qB1q1K1p/1P3Pn1/1k1r3r/N2BnrQ1/n7 w - - 0 1 legal: proof: b4 d5 e4 g5 h4 gxh4 c4 dxc4 e5 a5 Rh3 a4 Rb3 axb3 a4 f6 Ra2 fxe5 Rc2 e4 Rc3 Ra6 Rh3 Ra7 Rh1 Ra8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 g4 e5+ Ke3 c5 d4 h5 a5 b6 a6 h3 a7 h2 g5 c3 f3 c2 g6 c4 g7 c3 Bb2 c1N Bd3 c2 Bb5 Ba6 Ba4 Kc4 d5 Nd7 d6 Ne2 Qe1 c1Q+ Qd2 Ngf6 Ba1 b2 Nc3 b1Q Nh3 Qa2 Bb5+ Kb3 Rd1 h1R Nf4 Qa5 Ng6 Rh3 Na2 Qc6 Qe1 Ng4+ Kd2 e3+ Kd3 Qg5 f4 Rd8 a8Q Qh6 Bc3 Qc5 Ke4 Qd5+ Kf5 e4+ Be5 Ng1 g8Q e2 Rd4 e3 Qg7 Be7 Qc6 Bf8 Qf1 e1R Qg2 e2 Rd1 Rf1 Rd2 Qf3 Bc3 e1N Rd5 Nc2 Bd2 Na1 Rd4 Nde5 d7 Qd5 Qe6 Rf2 Rd3+ Kc2 Rd4 Ne2 Rd3 Bd6 Rd4 Rde8 d8B Kb3 Bc7 Rc8 Bb8 Rcc3 Rc4 Rcf3 Rc8 Rd3 Rd8 Nd7+
1QR1qk2/1p3B1q/1b2BP1r/pn2bnq1/K1b1Nqn1/P6N/2bQ2rB/6Q1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 a3 hxg4 b5 f5 Ra2 f4 Rb2 c6 Rb4 cxb5 Rb3 b4 Rg3 fxg3 d4 a5 Kd2 e5 h4 g5 f4 b3 Kc3 e3 f5 g2 h5 e4 d5 e2 h6 e1N d6 e3 h7 b2 Kb3 g3 c4 g4 c5 e2 c6 Qc7 f6 Ne7 Qd5 Be6 Rh6 Nd7 Rh4 Ne5 Rh2 Nf5 Bh6 N1f3 Nc3 e1Q Nh3 b1B Be2 g1Q Rh1 g2 Rh2 g3 Bg5 Qgf2 Bd3 g1Q Bf4 g2 Bc4 Ng4 Qc5 N3d4+ Ka4 Nb5 Ne4 Bc2+ Bb3 Be7 d7+ Kf8 Bd6 Rg8 h8Q Bc4 Rh1 Qff1 Bh2 Bd6 Qd4 Re8 d8Q Qh7 c7 Be5 c8B Qf4 Be6 Qge3 Qd1 g1B Q8d2 Q3g3 Qa1 Bb6 Rg1 Qe2 Rc1 Re7 Qad4 Rg7 Qf2 Rg6 Qg1 Rh6 Qg7+ Ke8 Qc7 Kf8 Bf7 Qh4 Be6 Qhg5 Bf7 Qd3 Qb8+ Qd8 Be6 Qe8 Bf7 B2d3 Rc3 Bc2 Be6 Bd5 Rc8 Bc4 Rd8 Be2 Rd3 Qh4 Bc4 Nf2 Bf7 Rg2 Rc3 Ng4 Rc6 Qhg5 Rc8 Bb1 Bbd5 Bc4 Bde6 Bc2+
Kn3bn1/q1PRRr2/3QQBpN/3R4/1b1Q2n1/k2p2Pq/1r6/bn1rNb2 w - - 0 1 legal: proof: e4 c5 b4 f5 d4 cxd4 b5 fxe4 g3 h5 b6 h4 Bf4 h3 Bg2 hxg2 Be3 axb6 Bd2 b5 Bc1 b4 Ke2 b5 h4 e5 f4 Ke7 a4 Kd6 c4 Kc5 f5 d5 h5 g6 h6 d3+ Ke3 b3 h7 Kb4 f6 d2 f7 b2 a5 Qf6 a6 Ra7 c5 Qe6 c6 Qh3 Na3 b1R Nf3 Rb2 Ng5 Bd7 Qf1 g1Q+ Qf2 Kb3 Nc2 b4 Ra5 Rb7 a7 d1N+ Kd2 e3+ Kd3 e2 a8R e1B c7 d4 Ke4 d3 Kd5 e4 Qf5 e3 Qe6 Bc3 Ne1 e2 Rc5 Rb1 Bb2 Nf2 Rca5 Bcg7 Bf6 Rd1 R8a6 Ng4 Rd6 Bc8 Rd7 Qa7 Rb5 Ka3 Rf1 Bd6 f8Q b3 Nf7 b2 Nh6 b1N Rf3 Bb4 Qfd6 Bf8 Rc5 Bc3 Re3 Ba1 Re5 Na6 Kc6 Rb2 Nf3 e1B Rcd5+ Bb4 Ne1 Qg1 Re3 Nb8+ Kb6 Bb7 Ka7 Qf2 Rg5 Be4 Rd5 Bg2 Ka8 Bf1 Ree5 Ne7 Re2 Rg8 h8Q Rg7 Qf7 Ng8 Ree7 Qd4 Qfe6 Rh7 Bh4 Qe3 Qd4 Rf7 Bf6 Qf2 Q4e5 Qb6 Qd4 Qa7+
1q3Nbq/P1NN3b/4rRnk/1rn1Q1p1/1b6/r1p1K2b/1nn1R1P1/1QB4Q w - - 0 1 illegal: No proof kernel
3BQ1N1/Qq2ppb1/3n1RR1/2Qn4/P6r/q2rPB1n/rk2b2K/R1br1b2 w - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 d4 axb4 Nd2 c5 Ne4 cxd4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 d5 Kg2 Kd7 c4 Ke6 h4 Ke5 h5 b5 c5 d3 h6 Kd4 c6 Kc3 h7 d4 c7 f3+ Kh2 d2 a3 d3 g6 f2 g7 b3 Nf3 b4 Ne5 b2 Nf3 b1Q Ng1 b3 Kg2 g3 Rh2 b2 Qa4 d1N Qb5 d2 Rh5 Qdd3 Rh6 Nd7 Re6 Nh6 g8R Nf6 Rg5 Nd5 Rgg6 Nf5 Nf3 Bg7 Qe8 Ba6 Ne5 Nd6 c8Q+ Kb3 Kh3 g2+ Kh2 Qc3 Nd7 g1B+ Kg2 Bh2 Ref6 Bf4 Qc5 Rd8 a4 Qb4 Qg8 Qa3 Qe8 Qe4+ Kh3 b1R Bg2 Rb2 Bf3 Ra2 Kg2 Bfh6 Kh2 f1B Bb2 Qeb4 Bc3 Qb7 Ba5 Nf2 Bb6 d1R e3 Bae2 Ba5 Kb2 Bc7 Nh3 Qa7 Rc8 Bd8 Rc3 Qc5 Rcd3 Qa7 Rg8 h8Q Bg5 Qh4 Rh8 Qc4 Rh4 Qcc5 B5h6 Rf5 Bd4 Nf6 Bg7 Ng8 Bc3 Rf4 Bd2 Rff6 Bc1
3N1q1b/2np1qRB/K2rQ3/2PbbnRr/1Q6/B2k3q/3P1pn1/R2Q1nb1 w - - 0 1 illegal: No possible last move
QBBK4/B7/4R3/rkrrp1bb/1qp2Qn1/1PbN1bQ1/2P2R2/rr1r2n1 w - - 0 1 illegal: No possible last move
1qr5/4RQNB/1Rpn3b/q1P3kn/b1P1r2q/2B1R1b1/np1Q1pK1/1Br5 w - - 0 1 illegal: Other
1bNB3K/3r1N1b/2bRr3/2Q4N/bn2ppnQ/n2RP3/2Pqr1Qp/1bk5 w - - 0 1 illegal: No proof kernel
kqr3nn/r1Rr1bp1/3Qr1B1/b1pr3p/1PK4P/2QRB1q1/q2N3Q/2R5 w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 dxc4 d5 f5 Na3 fxg4 Nb5 e5 Nd4 exd4 Kd2 Kd7 f4 h5 h4 a5 e4 a3 d6 Kc6 f5 Kb7 e5 d3 Kc3 a2 b3 a4 e6 a3 e7 g3 e8R g2 f6 d2 f7 Nd7 Bb2 Rh6 Kb4 c3 Re7 c2 Rb1 a1Q Qg4 d1R Bc3 c1R Bd4 a2 Bd3 Ne5 d7 Re6 Qg6 Ra5 Qf6 Ng6 Rh3 Rd5 Be3 Nh8 Bg6 Ka8 Nf3 g1Q Qc3 Qg3 Kc4 Qb2 Nd2 a1R b4 Ra7 Re8 Bc5 f8Q Bb6 Re7 Ba5 Qf2 c6 Qh2 Qa2+ Rb3 Qdc7 d8Q Qb8 Rc7 Bd7 Qe7 Be8 Qf8 Bf7 Qd6 Qg5 Rf3 Qe5 Rf1 Qg3 Qe7 Rd7 Qd6 Rc2 Nb1 Rd5 Rc1 Re2 Nd2 c5 Qh3 Re8 Qh2 Rc8 Qce5 Qa1 Rd3 Qb1 Qc3 Re1 Bf2 Re6 Be3 Qa2+
Q6B/4RB2/3k1rq1/B1Np1Q2/p3b3/1nQP2pr/K2b1qPq/bR1nb1b1 w - - 0 2 legal: proof: e4 c5 b4 b5 a4 bxa4 h4 f5 b5 fxe4 Nc3 Qc7 Nd5 Qd6 Nb4 cxb4 h5 Qh6 Bb2 Qxh5 Bc1 Qh2 f4 g5 c4 d5 f5 Kd7 c5 e5 c6+ Kd6 f6 a5 c7 h5 b6 a3 f7 g4 b7 g3 Ba6 e3 Qf3 b3 Kd1 e4 Qg4 h4 Nh3 b2 Kc2 b1Q+ Kc3 e2 Bb5 e1B Be8 a2 Rf1 a4 Qg7 e3 Qg6+ Nf6 Rf3 e2 Qh7 Qg6 Kb2 Ra6 d3 Nc6 b8Q Bf5 Be3 Nd4 Qa8 Be4 c8Q Nb3 Qc3 Bd2 Bb6 e1B Ng5 h3 Ne6 Ng4 Rb1 a1B+ Ka2 Nf2 Nc5 Nd1 Re3 Bh6 Re2 Bhe3 Ba5 Qg1 Qh5 h2 Qf5 Bd4 Re3 h1Q Re2 Qhh2 Re3 Bf3 Re7 Be4 f8B Rh3 Bf7 Qf1 Bg7 Bg1 Bh8 Qf2 Qb7 Ra8 Qa7 Rd8 Qa8 Rf8 Bg8 Rf6 Be6 Qf1 Bf7 Qf2
Q1Q1qb2/R1q1R2p/1nq1N3/6p1/b2KRb1P/N1b3P1/r1b1p2n/1B3rNk w - - 1 2 legal: proof: d4 c5 b4 cxd4 e4 dxe3 Qd4 a5 Bb2 axb4 Qd1 f6 Be5 fxe5 Bd3 e4 Bb5 Ra5 Bf1 Ra8 Ke2 Kf7 h4 Kf6 c4 Ke5 a4 Kf4 f3 Kg3 a5 g5 c5 e5 a6 b5 c6 d5 c7 d4 f4 d3+ Ke1 d2+ Ke2 b3 f5 b4 a7 b2 f6 b3 f7 Bf5 c8R Nh6 Rc1 Nd7 Rc3 Ng4 Rc7 Nh2 Na3 b1Q Nf3 b2 Ne1 Qc1 Nac2 b1Q Na3 Qb7 Nec2 Qc6 Rg1 Qe8 Nb4 Nb6 Qc2 d1B+ Ke1 e2 Nd5 Qf4 Qc5 Ba4 Re7 Rg8 Rh1 Rg6 Nc3 Rf6 Qc4 Bg6 Qa6 Bf5 Qc8 Qc1+ Nd1 Q1c5 Kd2 e1B+ Ke2 e3 Nf2 e4 Nh3 Bc3 Ng1 Qc7 Re1 Q5c6 Ra1 Be5 Re1 Bf4 Ra1 Bh6 f8N Bg7 Ne6 Bf8 Ke1 Bg6 Bd3 e2 Bb1 Bf7 Nd8 Bfb3 Ne6 Bc2 Ra2 Bd6 Kd2 e1B+ Ke3 Rf1 Ra1 Bf4+ Kd4 e3 Ra2 Kf2 g3 Kg2 Ra1 Rb8 a8Q e2 Ra2 Rb7 Rb2 Ra7 Rb3 Ra5 Re3 Rb5 Re5 Rb2 Re4 Ra2 Nf3 Rf2 Rf1 Bb4 Ng1 Kh1 Rd1 Rf1 Rd3 Be1 Rf3 Bd6 Rff7 Bf4 Rg7 Qb8 Ra7 Qbc7 Re7 Bc3#
n1KB3n/q2B2bb/1p2QqNp/Qq2rp1q/1PQ5/r4qB1/4P3/4NRnk w - - 0 1 legal: proof: b4 d5 f4 g5 c4 dxc4 h4 gxh4 f5 a5 a3 a4 Ra2 e6 Rb2 exf5 Rb3 axb3 a4 f4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 c3 d4 b2 d5 b6 g5 c4 a5 f3 a6 f2 g6 h6 g7 h3 a7 c2 Qd2 h2 Qg5 c3 Qg2 Ne7 g8Q Bf5+ Kd4 Bh7 Qe4 f5 Qgg2 Ng6 Bg5 c1Q Qeg4 c2 Na3 b1N Q4e4 Na6 Qeg4 Nd2 Q4e4 Nc7 Nf3 Qf6+ Ne5 Bg7 Bh4 Rhe8 Qgg4 Nh8 Bg2 f1Q Be1 Qf4 Rf1 Nf3+ Kc4 h1Q Ng6 Qd1 Qh4 c1Q+ Nc2 Qcb2 Bf2 Re7 Ne1 Qda1 Qg4 Qbe5 Qh4 Ne6 Kb5 Ng1 Qe3 Qg3 Qc4 Qh5 Be4 Qg2 Bc2 Qge4 Ba4 Qef3 Ka6 Nc7+ Kb7 Ree8 Bd7 Qa5 Nh4 Qea1 Ng6 Qb5 Qg5 Re3 Bh4 Rae8 a8Q Qa2 Qa6 Na8 Bf2 R8e7 Kc8 Qaa5 Qa7 Ra3 Qe3 Qaa6+ Kd8 Qb7 Qa5 Qa7 Kc8 Rf7 Qe8 Re7 Qf7 Re4 Nh4 Ke5 Qe6+ Kf4 Ng6+ Kg4 Bg3 Kh3 d6 Qf7 Bc6 Qf6 d7 Ree3 d8B Re5 Bh4 Kh2 Bd7 Kh1 Bf2 Qhh4 Bg3 Qhh5
q1R1BN2/Nr2R1rQ/2p5/1nq1Rrr1/1p1bn1P1/2PQ1p2/5r2/kbQKq3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 f6 h4 Bb2 gxf6 Bd4 f5 Bf2 f4 Bg3 hxg3 d4 Kd7 h4 Kd6 a4 Kd5 h5 e5 h6 b5 c3 f5 h7 c6 a5 f3 a6 e3 a7 b3 Nh3 f4 Qd3 b2 Nd2 f2+ Kd1 b1R+ Ke2 e4 Rh2 g2 Qc2 g1Q Qc1 f3+ Kd1 e2+ Kc2 e1Q Ra4 e3 Rh1 e2 Nc4 Na6 Qh6 Bg7 Na3 Nc7 Bg2 f1R Qc1 Nf6 Ng5 Rf8 h8Q Ne4 Qh7 Rf2 Ne6 Rf5 Bf1 Rb8 a8R Rb7 Rh6 b4 R4a5+ Nb5 Rh3 Ra1 Nf8 Be6 R8a7 Qa8 Rh2 Be5 Rh6 Rg7 Re7 Bf7 Rhe6 Bg6 Raa7 Rg5 Rac7 Rf5 Rc8 Qd2+ Kb3 Qe3 Kc2 e1R+ Be2 Nbd6 Nb5 Ra5 Na7 Nb5 Kb3 Rg5 Bd3 Bf5 Bc2 Ree2 Kb2 Kc4 d5 Bd4 d6 Rd2 Kb1 Bg6 Bd3+ Kb3 d7 Bf5 d8Q Bg6 Qe1 Ka3 Kc1 Ka2 Qd7 Ka1 Re5 Bc5 Bc4 Rh2 Qh3 Bf7 Rb8 Nc7 Rb7 Qef2 Qd8 Rd7 R5e6 Qd4 Qh7 Qge3+ Qd2 Rf2 Kd1 Bb6 Rb8 Raf5 Re5 Nb5 Bd5 Rb7 Rc8 Be6 Bb3 Qc4 Q8d3 Bd4 Q2c2 Qc5 Bd5 Bf7 Be6 Bg8 Bd7 Ba2 Be8 Bb1 Qc1 Qe1+
kn3Q2/q1rN4/pb2pp2/4NP2/1bqr4/1bQ2RP1/1b1Rrn2/2RBqKQ1 w - - 0 1 illegal: No possible last move
qb1r4/2K1n3/kB3P2/bb2ppQ1/rB1nnP1N/3n2Q1/Nq2p1B1/4Rr1N w - - 0 1 illegal: Other
1B2R1Q1/r1Q5/5pqK/5prN/3N1P1P/kBbB2rq/2p3b1/Nb2nqnr w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 a4 dxc4 g5 e6 Ra3 h6 Rg3 hxg5 Rf3 g4 Rf5 exf5 e4 Kd7 Ke2 Kc6 Ke3 Kc5 Kf4 b5 d3 g5+ Ke5 g3 f4 g4 h3 c3 a5 c2 a6 g2 a7 g3 Nd2 b3 d4+ Kb4 d5 c5 d6 b2 d7 b1B Bc4 f6+ Ke6 Qe8+ Kd5 Nh6 d8Q Nd7 e5 Ng4 e6 Nh2 e7 Bb7+ Ke6 Ne5 Qf1 Nhf3 Ne2 g1R Qb8 g2 Ba2 c4 Bb2 c1Q Nb3 c3 Ba1 c2 Qc8 Ka3 Qc7 b4 Ned4 Qe3 Qfc4 Ne1 h4 Rh5 Bc3 Qh3 Na1 N5f3 Bb3 Rg5 Rh2 Qd7+ Kf7 Rh1 Qd5 g1Q Re2 Qgf1 Qe6 Qd5 e8N Ng1 Ng7 Qd7+ Kg8 Qf7+ Kh7 Bg2 Kh6 Bd6 Qd5 Be5 Nh5 Rag8 a8B R8g7 Bc4 b3 Bd3 b2 Qe6 Rg8 Bd5 Rg3 Bb3 R8g5 Nc6 Bd4 Ba5 Bc3 Nd4 Ba2 Qe8 b1R Qg8 Rc1 Bb6 Bb1 Ba7 Rd1 Re8 Rd2 Qh7 Re2 Qg6 Re7 Bb8 Rd7 Qg8 Re7 Qe5 Ra7 Qc7 Qg6+
K1N1Qrq1/2n2p2/2b5/NR1Q1pnB/b2nrPb1/P7/1RrpR3/q1b2Nk1 w - - 0 1 illegal: No possible last move
3B3q/3pq3/1Qr4q/1Nb2rB1/BQ2rp1p/1KQbnP2/1b3Pb1/4RRnk w - - 0 1 illegal: Other
2n5/rkrpn1Qp/b5qq/3p1Nb1/1B1PrQQP/N6B/5Rn1/BKr3b1 w - - 1 2 legal: proof: c4 f5 a4 e6 g4 fxg4 b4 a6 b5 axb5 Ra3 bxc4 Rd3 c3 Rd5 exd5 h4 c5 e4 b5 f4 g5 d4 c2 Kd2 b4 a5 g3 e5 g2 e6 b3 a6 b2 f5 c4 e7 c3+ Kd3 g4 a7 g3 f6 Nc6 Be3 c1R Qd2 c2 Qa5 Bh6 Na3 b1Q Rh2 Qdb6 Ne2 g1B Bh3 g2 Ng3 Bg5 Nf5 Ba6+ Qb5 Re1 Bd2 Re4 Bc3 Rc8 a8Q Na7 Qc6 Rc7 Qd6 Nc8 Qf4 c1R+ Kd2 Qe6 Qe2 Qbb6 Qd1 Qf7 Ba1 Qg6 Qg4 Qh6 Nc4 Qe6 Kd3 Qf7 Kd2 Qfg6 Na3 Nb6 Qe2 Bf2 Qg4 g1N Qe3 Ne2 Rg2 Bg1 Rf2 Nf4 Qef3 Ng2+ Qff4 R1c5 Kd1 Bc4 Kc2 Ba6+ Kb2 Rc1 Ka2 Kf7 Kb2 Ke6 f7 Ra7 f8B Rac7 Qff3 Ra7 Ng3+ Kd6 e8Q+ Kc6 Nf5 Rc7 Bb4 Kb7 Qf8 Ne7 Qg7 Ra8 Qff4 Nbc8 Ka2 Ra7 Kb2 R1c3 Kb1 Rc1+
1kB3n1/1p1r1rq1/R1r4p/2PN4/3bn1R1/3pbQNn/3PrNbK/1R1Q3q w - - 0 1 legal: proof: h4 c5 e4 a5 b4 f5 h5 fxe4 h6 c4 Bb2 axb4 Nh3 c3 Qc1 cxb2 Ng1 gxh6 Qd1 h5 Bb5 h4 Be2 Bh6 Bf1 Bf8 c4 d5 a4 Kd7 g4 Kc7 f4 e5 Kf2 b3 Kg2 h6 a5 d4 f5 e3 a6 e4 g5 e2 g6 e1B f6 h3+ Kh2 d3 g7 e3 a7 e2 c5 Rh7 f7 Qe7 Nf3 Bf2 Ra3 e1R Ne5 Re2 Ra1 Be3+ Kg3 h2 Nf3 Bh3 Nh4 Bg2 Qe1 Nd7 Ra6 Rc8 a8N+ Kb8 Qd1 Rc6 Nc3 b1R Nc7 b2 Ne4 Ndf6 Nf5 Qd7 Rg1 h1N+ Kh2 Nf2 Nd5 Nh3 Nf2 Ne4 Ng3 Bd6 Rh1 Be5 Rg1 B5d4 f8Q+ Qd8 Qf3 Qf8 Rh1 Rc1 Rg1 b1Q Rh1 Ngf6 g8R Rd7 Rg4 Ng8 Rg1 Qg7 Qc2 Bh1 Bg2 Rf1 Qd1 Nhg5 Bh3 Bg2 Rh4 Qc1 Be6 Nh3 Rg4 Rdd6 Bc8 Rd7 Rh1 Bf4 Qb3 Rf7 Qe3 Rd7 Nd1 Rf3 Nf2 Bg5 Qb1 Rf8 Qf3 Bge3 Qc2 Rff7 Qb3 Qc4 Rb1 Qc1 Qc2 Qf1 Qd1 Qh1+
1r3B1q/kBp1PKbq/1NP4n/5b2/1p5R/4N1Qn/prq1n1B1/2r1QrQ1 w - - 0 1 illegal: No proof kernel
1q2B2n/3qn2r/7n/4BPrQ/1Q4bN/BNpNpq1R/n1Ppr2b/5K1k w - - 0 1 legal: proof: b4 e5 a4 a5 d4 axb4 e4 exd4 g4 f5 e5 h5 Ra3 hxg4 Re3 Qh4 Re2 Qd8 Re4 fxe4 f4 Kf7 h4 Kg6 a5 Kf5 e6 c5 a6 g5 e7 d5 e8Q b5 a7 g3 h5 b3 h6 c4 h7 b4 Qd2 Kg4 Bd3 g2 Qe3 b2 Qf7 b3 Qf2 Bd6 Bf1 d3 Rh3 d2+ Ke2 d1Q+ Ke3 Qf3+ Kd2 d4 Ke1 d3 Nd2 b1N Rh6 b2 Nh3 g1N Qe3 Kg3 Qe8 Kh2 Nf2+ Nh3 Bg2 g4 Nd1 g3 Qf2 Nc3 Qf1 b1Q Qf2 Nc6 Kf1 Qd7 Nb3 d2 Nb2 Na2 Qh5 c3 Nd3 Rb8 a8N Nce7 Nc7 e3 Na6 Rb5 Nb8 Rg5 Nc6 Bb8 Ncd4 Be5 Ra6 Nh6 Nf5 Bb8 Nh4 Bd6 Na1 Qb8 Nb3 Qdg4 Ra4 Qe4 Ng6 Be6 Bf3+ g2+ Ke2 Bf5 Ba3 Kh1 Qfh4 Bd7 Rc4 Qgf5 Bg4 g1R Bf3+ R1g2+ Kf1 Qee6 Bc6 Qed5 Bb5 Re2 Re4 Be6 Be8 Bc7 Rb4 Qd7 Ra4 Bd5 Rb4 Bf3 Rd4 Qfd5 f5 Bh2 Rg4 Nf4 Rg3 Qe4 Rh3 Qea8 Q4g4 Qac6 Nh4 Nfg6 Qb4 Bg4 Qd6 Rf8 h8B Rf7 Bf6 Rh7 Qb4 Nh8 Be5 Qf3+
qqq3Kb/2r2Np1/ppRn4/3QB1P1/1n1r4/1bQNb1b1/NPR2Q2/nk6 w - - 0 2 illegal: Other
2bq2Qn/Q1r1BN1r/3P1pN1/1Nn1p1qn/Q1R2P1p/2bR1q2/8/1k1K1rn1 w - - 0 1 illegal: No possible last move
N2rb1B1/n1P3rR/1q1QnK2/QNp1np2/BB1Nk3/2P1bp2/7q/1br3b1 w - - 0 1 illegal: Other
3qn1q1/Rprn2rP/8/1P2nN1p/1q1Bkq1Q/BN2N1p1/4rQ1K/b2b1B2 w - - 0 1 illegal: No possible last move
1r5b/7B/2pq2nN/kpQ3BP/pn2r3/1P2n2b/1NN1nBRr/q3Qb1K w - - 0 1 illegal: No possible last move
2N1KR2/q1Q4r/1b3Bpp/kb1Bqp1b/1nQ1P3/3B3P/1rrnQq2/q6N w - - 0 1 illegal: No possible last move
4b2K/1b1qQ2n/Bk1p1N1P/b2Q3p/3rp1R1/q2bn3/1N2rN1P/1r2QR1n w - - 0 1 illegal: Other
3b3q/1p1P1Qp1/rpk5/6Nq/1KN1RbPR/nR5n/q1N2Qn1/2B1rbn1 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 e5 g3 exf4 b5 h5 b6 axb6 Bh3 h4 Bf1 h3 Bg2 hxg2 d4 Kd7 Kd2 c5 Kc3 f5 a4 f3 e4 f4 h4 f2 a5 f1N e5 f3 h5 f2 h6 Be7 a6 Nf6 h7 Re8 h8R Ne3 a7 f1Q d5 Qf5 d6 Nc6 Qa4 Nh5 Qa3 Na5 e6+ Kc6 Rh7 Nf4 R1h3 Qh5 Ne2 g1N Qa2 Neg2 Nd2 Bd7 Rh4 Nfh3 g4 Qc8 Rb1 Bd8 e7 Bf5 d7 Bd3 Rb4 Qb8 Ng3 Bf1 Nf5 Qh2 Ne3 Qh1 Kc2 c3 Re4 Nc4 Kb3 Na3 Nc2 c4+ Kb4 Qh2 Nf3 Qb8 Ng5 Qc8 Ne1 c2 Qb3 c3 Qf7 Rf8 e8N Rh8 Nc7 Re8 Nb5 Re6 Nd6 Qb8 Be3 c1B Nc4 c2 Rh6 Qh2 Rf6 Qh1 Rf3 Re5 Bf4 Bd2+ Rc3 c1Q Nc2 Qa1 Be3 Bc1 Rb3 Qa2 Bf4 Rd5 Be3 Rd1 Bf4 Re1 Bd2 Rb8 a8Q Qh2 Qa5 Ra8 Qaf5 Ra6 Qf2 Qb8 Bc3 Bf4 Bb2 Bdc7 Bc1 Qbh8 Rc3 Bd8 Rf3 Be2 Rb3 Bf1
R2rkr1Q/b1Rnp1K1/BB2bn2/2qR2n1/4P1p1/2P1nbp1/8/Qq2N1rQ w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Nd2 h4 Ne4 fxg6 Ba3 g5 Ng3 hxg3 Bc1 g4 Kd2 g5 Kd3 b5 Ke4 d5+ Ke5 b3 f4 b2 e4 b1R a4 d3 h4 b4 a5 b3 f5 d4 a6 b2 f6 g2 c3 g3 h5 g4 h6 d2 a7 d3 h7 Qb6 Nf3 g1N Rh5 Bh6 Ne1 Nd7+ Kf5 Nf3 Kg6 Qc5 Rd5 Be3 Kg7 Ng5 Ra6 Ra1 Rc6 b1Q Rc7 Bd4 Qf3 d1B Qh1 d2 Ba6 Bf3 Ba3 Rb8 a8R d1N Bb4 Ne3 Ba5 Nf8 Bb6 Be6 Bb5+ Nd7 Bd3 Nh6 Ba6 Rf8 h8Q Ng8 Kg6 Kd8 f7 Nf6 Kh6 Ra2 Kg7 Rg2 Q1h5 Rg1 Qh1 Re8 f8Q Rc8 Qf7 Rf8 Qfg8 Ke8 Qgh7 Rd8 Q7h2 Rc8 Qa2 Rd8 Qa1 Qc4 Ba5 Ba7 Bb6 Qc5
q1n3b1/1r3rpb/B1k5/2pn1Nb1/P1Q1nN2/K4r2/2PpRqQb/2B1QB2 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 h5 d6 h4 Ra2 exd6 Ra3 d5 Rh3 d4 Rg3 hxg3 Kd2 b5 h4 c5 f4 d5 e4 Kd7 f5 d3 f6 b3 Kc3 b2 Kb3 d2 f7 g2 h5 b4 h6 g3 e5 d4 h7 d3 e6+ Kc6 e7 Nd7 e8B Nf6 Na3 b1R+ Bb2 Nd5 Nc4 Ra7 Qg4 d1N Nb6 d2 Qc4 N1c3 Rh4 Be7 f8Q Bg5 Rh5 Ne4 Qe7 Rf8 h8Q Rf3+ Ka2 b3+ Ka3 Ba6 Qc3 Bd3 Rh7 Qa8 Nh3 g1B Bc1 g2 Qc4 b2 Nc8 Bh2 Nd6 g1Q Nf5 Qf2 Nf4 Rb7 Bf7 N7b6 Be6 Rc7 Bc8 Rb7 Qe5 Rf7 Ba6 Nc8 Rh5 Ned6 Qe1 Be4+ Ne3 Bh7 Qd8 Ne4 Qd7+ Kb6 Qg4 Kc6 Qg2 Ra1+ Kb3 b1B Rh3 Ba2+ Ka3 Rb1 Rh5 Bd8 Re5 Rbb7 Re8 Bb3 Nf5 Bg5 Re5 Nef6 Re3 Ne4 Re2 Ndf6 Qb4 Rf8 Qa5 Bbg8+ Qc3 Nd5 Qb3 Rff7 Qc3 Ne3 Qc4 Nd5+
3Q2N1/BB1bb2Q/1P1kNpRp/rp5Q/1n1n4/q1rq1nK1/4q1BP/1b4n1 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 bxa4 b4 dxe4 b5 g5 b6 gxf4 Ra2 c6 Rb2 Qd7 Rb3 Qd8 Rb5 cxb5 Kf2 Kd7 c4 a5 d4 e5 g4 f3 d5 h6 g5 f6 c5 e3+ Kg3 e2 c6+ Kd6 c7 e1N g6 f2 g7 e4 Qf3 e3 Qf5 e2 Qh5 a3 Nf3 a2 Kf4 a1Q Nfd2 a4 Qg6 a3 Qg4 a2 Nc3 Nf3 Qh5 e1N Kg3 Nc6 Nb3 Ncd4 Rg1 Qb2 Bg2 a1Q Nc5 f1B Ne6 Ne7 g8Q Qaa3 Qh7 Bd7 c8B Nec6 Bb7 Bd3 Bd2 Bb1 Bg5 Ke5 d6 Ra5 Nd5 Qe2 Ne7 Nb4 Ng8 Be7 Bd2+ Ng5+ Be3 Nef3 Bf2 Bc8 d7 Kd6 Be3 Nh3 Bd2 Qf8 d8Q+ Bd7 Bc8 Qad3 Bf4+ Kc6 Be5 Kd5 Bb8+ Kc6 Re1 Ng1 Ba7 Kd6 Bb7 Qf1 Re4 Qfe2 Q7g6 Rh7 Rg4 Rg7 Qf7 Rg5 Qh7 Rc5 Rg7 Rc3 Rg6 Qf7 Nf8 Qfa2 Ne6 Qa3
1N1RB1N1/1ppnqQ2/n1bP2r1/n3Q3/2K5/1NPpqr1R/7b/bb1Q2rk w - - 0 1 illegal: No possible last move
Q1r3N1/1pQ3bK/1q1P3b/3r4/1rBq4/QP1RnpRb/qpN1knR1/7q w - - 0 1 legal: proof: h4 d5 f4 e5 c4 dxc4 b3 exf4 h5 a5 h6 a4 Bb2 a3 Rh2 axb2 Rh5 gxh6 Rh2 h5 Rh1 h4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 Kg4 a4 c5 a5 f5+ Ke5 h5 e4+ f3 d5 f4 g3 c3 d6 c4 a6 h3 a7 h2 Nh3 h4 Qd2 c2 Ra3 c1Q Rg1 h1R Qh2 f2 Ng5 h3 Bd3 f1Q Nf7 Kf3 g4 c3 g5 c2 g6 Qe3 g7 c1B Ra4 Nf6 g8R Nd5 Bc4 Rh4 Na3 Nd7+ Kf5 Qd4 Kg6 N7f6 e5 Ng4 e6 Nf2 e7 Ne3 e8Q Q8b6 Nh6 Bg7 Nc2 Bd7 Ra5 Rc8 a8Q Qfd3+ Qe4+ Ke2 Rg2 f3 Kh7 Rd1 Rd5 Rd2 Qe5 h2 Qe7 Bh3 Qc7 h1Q Qf5 Re4 Qfd7 Rd1 Qda4 Bd2 Qa3 Bc1 Ba6 Qa4 Bc4 Qaa6 Qac5 Qa2 Qca3 Rd2 Bb5 Qc4 Rd3 Qd5 Ba6 Rb4 Bc4 Rd1 Rf8 Qdd4 Ng8 Nf1 Rf5 Bch6 Rfg5 Ne3 R5g3 Qh4 Rc3+ Rd3 Bd5 Rdd4 Rd3 Qf4 Bc4 Rd5 Q3a7 Qh4 Qa3 Qhd4
1Q1r4/p4NQN/p2B1R2/qPnBbbB1/nKn1rr2/4q2b/P1bkN1p1/8 w - - 0 1 legal: proof: f4 e5 d4 exf4 b4 h5 g4 hxg4 Nd2 c5 Rb1 cxd4 Rb3 Nc6 Ra3 Nb8 Ra6 bxa6 h4 Ke7 e4 Kf6 c4 Ke5 c5 d5 b5 g5 h5 f5 h6 d3 h7 Kd4 c6 Ke3 c7 g3 e5 g2 e6 g4 e7 g3 e8N f3 Bb2 d4 Rh5 f4 Qb3 f2+ Kd1 f3 Qd5 Nc6 Nh3 g1Q Nb3 d2 Kc2 d1N Ng7 d3+ Kb1 d2 Kc2 Nf6 Nc1 Bd6 Kb3 Ne5 Qe6 Nd7 Qe7 Nc5+ Kb4 Re8 h8B Bf5 c8Q Nc3 Ng5 d1B Nh7 Kd2 Ne2 N3a4 Ba3 Nc4 Ne6 Be5 Qb8 Bdc2 Bg2 f1B Rh6 f2 Bd5 B1h3 Bf6 f1R Qg7 g2 Bg5+ Qe3 Rf6 Qb6 Nd8 Rf4 Nf7 Rd8 Be6 Rdd4 Bd5 Rde4 Qd6 Rd8 Qb8 Ba1 Bb2 Qc7 Be5 Qb6 Bc7 Be5 Bd6 Qa5#
2rq1RNk/p2p1Br1/3r2R1/6nq/1n1n2pP/B2K4/P1QbrqQR/Q4b2 w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Ne4 hxg6 Bg2 g5 Ng3 fxg3 Bf1 g4 Kd2 Kf7 f4 g5 h4 Kg7 e4 c5 b4 g2 f5 g3 e5 c3+ Kc2 d3+ Kb3 c2 Kc3 c4 b5 d2 e6 Nh6 e7 Ba6 e8R Nf7 b6 Bb4+ Kd4 c3 b7 Rh6 Bb5 Nc6+ Kd3 Nd4 b8Q Rd6 Qc7 Rc8 Ba3 c1R Ne2 g1R Bc4 c2 Nc3 g2 f6+ Kh7 Qf1 Re1 Nd5 Re2 Rh2 Bc3 Re6 Kh8 Ne7 Bb4 Qe1 d1Q+ Qd2 Ba5 Ng8 Bc3 Re8 Ba5 Rf8 Bb5 Rb1 Ba6 Rb4 c1N+ Kc3 Bb5 Qb7 Nd3 Qc2 Ree1 Qd5 Qh5 Qf3 Re2 Qg3 Nfe5 f7 Nef3 Qe1 g4 Qf1 Ng5 Qa1 Re7 Kd2 Rge1 Kc3 g1Q Qg2 Nf4 Kd2 Nd5 Kd3 Ba6 Rb6 Bd2 Rc6 R1e2 Rb6 Rh6 Rg6 Bb5 Re8 Ba6 f8Q Rg7 Qc5 Qe1 Rf8 Qf2 Rb6 Rd6 Qc6 Nc7 Qa4 Bb5 Qc2 Na6 Rc6 Rd5 Re6 Rd6 Rg6 Ree7 Qgg1 Bc6 Rgf6 Bg2 Rg6 Re2 Bf7 Bf1 Qg2 Nb4+
4R3/rP1Qr1br/bN2B1pn/2n1NQP1/Nr3p2/krQ2n2/5p1q/2rK3R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 f5 cxd4 f6 h4 Bg5 exf6 Be3 f5 Bf2 f4 Bg3 hxg3 h4 Ke7 c4 Kd6 b4 a5 e4 f5 g5 f3 b5 Kc5 e5 Kb4 b6 d5 e6 g6 e7 f4 e8Q g2 h5 f2+ Ke2 d3+ Kd2 d4 h6 a3 c5 a4 c6 a2 h7 a3 c7 Nh6 Be2 Ra7 Bg4 Bg7 Kc1 d2+ Kc2 Ba6 c8Q Re7 b7 Nd7 Nf3 g1N Qg8 Nc5 Ne5 Nf3 Qf1 d1R Bh3 Rd2+ Kc1 d3 Qe8 Rc2+ Kd1 d2 Nc3 Qd7 Rc1 a1R Qe1 a2 Nc4 Rb1 Na4 a1R Be6 Rb3 Ncb6 Ka3 Qed8 Qd3 Qdd7 Qf1 Qf8 Qg1 Qf5 Qh2 Qe3 Rb1 Qc3 Ra8 h8N Ra7 Nf7 Rbb2 Ne5 Rb1 Qc4 Rb4 Ke2 R1b3 Rce1 d1R+ Qd2 Rcc3 Qd7 Rd6 Qcd3 Rc2+ Kd1 Rc6 Re4 Rc8 Qd2 Rh8 Qc3 Rh7 Rc4 Nd3 Rc8 Nc5 Re8 Rc1+
1rQ4N/PK4p1/2r1R1P1/pkb3pR/3n1bNb/q3Nb1r/8/1rBnQ1bR w - - 0 1 illegal: No proof kernel
2nR1nnb/1r1b1K1n/1Q2NppN/3P1RPR/k7/pb6/2bNnQ2/1B1qr3 w - - 0 1 illegal: No proof kernel
1n3b1Q/r2K1p2/4rP2/6R1/pnp1QqP1/BB3nb1/1R1bb2Q/nN1nk1B1 w - - 0 1 illegal: No possible last move
4r2k/1r1b1R2/1nRK1p1P/pnN2PB1/1nB2n1B/p1QnrqQ1/3br3/1Q6 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bc1 h5 Nc3 hxg4 Bh6 e5 Nb5 d3 Nd4 exd4 Be3 Qb6 Bc1 Qd8 Kd2 a5 c4 d5 h4 g5 e4 f6 f4 Kf7 b4 Kg7 c5 a3 b5 g3 e5 g2 b6 g4 c6 g3 e6 Na6 h5 Ne7 b7 Ra7 b8B Nb4 c7 Rb7 Ne2 g1R f5 g2 Ke1 d2+ Kf2 d3 Kf3 d4 Ke4 Qd5+ Kf4 Bd7 Qe1 d1R c8Q d2 Ba7 d3 Bf2 Qc6 Ng3 Ned5+ Ke4 Nb6+ Kd4 Qf3 e7 Kh7 Kc5 Bh6 Qe5 Re1 e8Q d1N Kd6 d2 Ne4 Nb2 Q8e6 d1N Qb3 Bf4 Bd2 Kg7 Rc1 Re8 Ba6 N2d3 Qb1 Kh8 h6 Be6 Rc7 Nc3 Rf7 Bd7 Bh4 Rgf1 Bb5 g1N Qc7 Bg5 Qg3 Rf2 Be3 Rg2 Rh2 Ra2 Rc2 Nh3 Qc5 Nca4 Rc4 Nc3 Qce5 Rd2 Rc6 Rc2 Nc5 Rf2 Bd4 Bd2 Be3 Rg2 Beg5 Re3 Ba6 Rge2 Bc4 Nhf4 Qd4 Ncd5 Qdb2 Nc7 Qc3 Nb5+
k1rQ2b1/bnnpp3/1q2P1Nb/3r1n1Q/R1N2B2/np6/B6P/1nQ1bKB1 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 h5 d6 h4 Ra2 cxd6 Ra3 d5 Rd3 d4 Rg3 hxg3 c4 b5 f4 g5 e4 b3 a5 g2 f5 b4 a6 g3 e5 g4 c5 d3 f6 d2+ Ke2 b2 a7 b3 c6 Rh5 c7 Nc6 Nf3 g1B Nd4 g2 Nc3 b1N Nf5 g3 Nh4 Ba6+ Nb5 Bh6 c8Q Bf2 Qc2 d1N Rg1 Be1 Qh7 Ndc3+ Kf3 Na5 Bc4 Nb7 Bd3 Nd5 Ke2 Na3 Bb1 Nc7 Be3 Rb8 Rh1 g1B a8Q g2 Ba2 Bgf2 Ba7 g1N+ Kf1 Ne2 Ng6 Nc3 e6 Rd5 Rg1 Ncb1 Rg4 Bg1 Be3 Bgf2 Bf4 Ba7 Be3 Bg7 Qh3 Nh6 Bg1 Nf5 Ra4 Bh6 Qh5 Nbd6 Qcb7 Rc8 Qc6 Bb7 Qc1 Bc6 Nd4 Nb7 Nf3 Bb5+ Kg2 Bd3 Nd2 Ncb5 Qb8 Qb6 f7+ Kd8 f8B Bc2 Qa8 Kc7 Nc4 Kc6 Bg7 Nc7 Kf1 Nd4 Nf4 Bh7 Be5 Bg8 Ng6 Nf5 Bf4 Re8 Qc8 Nbd6 Qc3 Rf8 Qe8 Kb7 Qf7 Rb8 Qc1 Rc8 Qe8 Ka8 Qd8 Nb7
1Q6/1b1k3n/B1r1n2Q/rp1b1bQN/1PB3P1/rbK2pR1/1bpB2q1/1rR5 w - - 0 1 illegal: No possible last move, all moves rejected
1bQ4r/PQpbR2Q/q1n2nR1/2Pp4/r1p3q1/K5n1/1n2Bk2/1NRnN2n w - - 0 1 illegal: No possible last move, all moves rejected
3R4/2r1r1pK/1pnnb3/n1N1R1b1/1PQ1nb1q/1N1b3B/P1Qp1R1b/N6k w - - 0 1 legal: proof: g4 c5 e4 h5 d4 hxg4 b3 cxd4 e5 a5 e6 a4 Ke2 a3 Bb2 axb2 Ke1 fxe6 Ke2 e5 Ke1 e4 Ke2 Kf7 h4 Ke6 f4 Kf5 c4 d5 h5 e5 b4 e3 Kd3 g3 h6 b6 c5 e2 c6 Kg4 c7 g2 f5 Kg3 f6 e1B f7 e4+ Ke2 d3+ Ke3 Bd2+ Kd4 e3 Ke5 e2 h7 e1N Qh5 d4 Rh4 Bd6+ Ke4 Nf3 f8N Ng5+ Kd5 Nf7 Ke4 Ne7 Rh2 Be6 c8R Ra7 Qb5 Rc7 Nf3 g1B Re2 Bh2 Na3 b1B Nd7 Re8 h8Q Bh6 Nc2 Bdf4 Re1 Kf2 Nd2 Kg1 Nc5 Kh1 Ndb3 Nd6+ Kf3 d2 Qe2 d1N Qh7 d3 Bh3+ Bg1 Qf1 d2 Qc4 Nf2 Re5 Bgh2 Qf5 Nfe4 Kg4 Ng5 Kh5 Rd7 Qg6 Rc7 Qgd3 Nge4 Qdc3 Ng8 Kg6 Qh4 Kh7 Ne7 Ne1 Bd3 Rd8 Nec8 Qc1 Ree7 Qd1 Nb7 Nc2+ Bg1 Rb1 Nc6 Nca1 Ncd6 Qdc2 Nba5 Rf1 Bhg5+ Kg6 Qg4 Rf2 Bgh2 Kh7 Qh4+
1n1K4/1p1R1q2/r1n1Q3/2N3r1/1PRr1NN1/RQbnB1pb/1rnn2Pp/1k6 w - - 1 2 legal: proof: d4 a5 f4 c5 h4 cxd4 b4 e5 h5 exf4 h6 a4 e3 Qb6 Bc4 Qxh6 Bd5 Qh2 Bb3 axb3 Kf2 Ke7 Kf3 Kf6 Ke4 g5 Kd5 Kf5 a4 h5 c4 b2 c5 f3 c6 g4 a5 f2 a6 f1N c7 h4 a7 d3 Qe1 d2 Ra3 d1N Bd2 h3 Rc3 g3 Nf3 Ne7+ Kd6 Ke4 Rc1 Kd3 e4 f5 e5 f4 e6 Nf2 Nd4 f3 Ne2 Ne3 Rd1 Kc2 Rg1 Rg8 Rh1 Rg5 Nbc3 b1R Ne4 Bg7 Bc3 Nd3 Bd4 f2 Nc5 f1N Nf4 Nec6 e7 Nd2 e8N Rb2 Nf6 Qg1 Qf1 h2 Qf3 Qf2 Ng4 Bf6 Qd5 Qf1 Qe6 Bh8 Ra1 Bg7 Ra5 Kb1 Ra3 Nc2 Be3 Bc3 Qb3 Na5 Ke7 d5 Rg1 d4 Kd8 Bf5 c8Q Bd7 Nf6 Bh3 Qce6 Nac6+ Ke8 Nc1 Ng4 d3 Rh1 Ne4 Rg1 d2 Rh1 d1R Rg1 N6d4 Kd8 Qc4 Re1 Rd3 Rd1 Ndc6+ Kc7 Rd6 Rd4 Qf1 Rc4 Nd2 Kc8 Rd4 Kc7 Nd3 Kc8 Nd7+ Kc7 Rd8 a8R Ndb8 R8a5 R8d6 Ra8 Nd7 Rd8 Ndb8 Rd7 Qf3 Ne5 Qh5 Ng4 Qf7 Kc8 Na7+ Kc7 Ra6 Kd8 Nac6+
6b1/nK3R1R/1rNq1Q1p/2bn4/1Nb1r3/pkBpPn1n/R2P3Q/4rN1r w - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 b5 f4 bxa4 b5 e5 b6 exf4 e3 c6 Bb5 cxb5 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 Kb4 Kd5 f5 g4 a5 b7 f3 g5 h6 c5 a3 g6 a2 g7 a4 c6 f2 c7 f1N Rh2 h3 Na3 f4 Qf3 Ra6 Rh1 h2 Qh3 f3 Qh5 f2 Qf3 Bc5 Nh3 Nf6+ Ke5 d5 g8N d4 Qd5 Nc6+ Kf4 Be6 b8Q Na7 c8R Qd6+ Qe5 Kb3 Rc7 b4 Ne7 Re8 Bb2 Bg8 Bc3 Nd5+ Ke4 d3 Nc2 a3 Rg1 h1N Qf6 Nh2 Ng5 f1R Nf3 Re1 Rf1 Nf2+ Kf5 Qc6 Ke5 Nh3 Rb7 Qd6+ Ke4 Ng4 Nh2 Ne5 Nc6 Re6 Rh7 Nf3+ Kf5 Re7 Rf2 Re4 Nf1 Kc4 Qc7 b3 N2b4 b2 Qb8 b1B Qc7 Qf8 Qd6 Kb3 Qh2 Ne5 Rf4 Qd6 Rf3 Rh4 Rf4 Nf3 Ke4 Bc2 Rc1 Bd1 Rc2 a1R Rb2+ Ka4 Ra2 Bb3 Qh8 Bc4 Qd4 Rh5 Rff7 Kb3 Qf6 Rh4+ Kf5 Qb8 Ke6 Re4+ Kd7 Qe5 Ng3 Rh1 Nf1 Re1 Kd8 Nb5 Kc8 Na7+ Kb7 Qc7+ Ka8 Qd6 Kb7 Rb6+
nbb1bBr1/2b1P1RK/6nB/4Nr1n/k1p3p1/1R1q3r/p3BnP1/R2QQ3 w - - 0 1 illegal: No proof kernel
Nqr5/r2npn1n/3Nb2k/3Qb1N1/Q1RRbpQ1/4Pp1K/BP4rr/4n3 w - - 0 1 illegal: No possible last move, all moves rejected
1k3Bb1/rpNp4/5RP1/2b1r2Q/bbr1npNK/1PQ1Qn2/1n1n4/2qB3N w - - 0 1 illegal: Other
1Nq4Q/r2N1kB1/8/1pq1rbK1/nQ1Nqpb1/RP3P2/Qp5n/1qb3bB w - - 0 2 legal: proof: e4 g5 h4 gxh4 d4 a5 d5 a4 b3 a3 Nd2 c6 Rb1 cxd5 Rb2 axb2 a3 dxe4 a4 e3 Ke2 e5 Kf3 d5 c4 f5 g4 h5 g5 b5 g6 f4 c5 d4 c6 e2 g7 e1Q a5 e4+ Kg2 e3 Kf3 h3 c7 e2 a6 h4 a7 d3 Nb1 h2 Nh3 d2 Ng5 h3 Nc3 Bf5 c8Q Rh5 Nd5 Na6 Nb6 Bc5 Bg2 Nf6 g8N Qg1 Nd7 e1B Ne6 Ng4 Ne7 Kf7 Nc6 Qg8 Qe2 d1B Ncb8 Bd2 Nd4 Bb6 Qc3 Nc5 Qb4 Be3 Bd2 Na4 Bc3 Bc1 Nc2 Qc8 Bg7 Rh8 Nd4 Re8 Nc5 Re5 Ncd7 Qe1 Rg1 h1Q Rf1 Qg1 Bh1 Bdc2 Qe3 h2 Qe4 Be6 Qh7 Bcf5 Qh8 Qd1+ Ne2 Qd6 Nd4 Qdc5 Re1 Bd2 Rb1 Bc1 Ra1 Qe1 Ra3 Qe3+ Kg2 Qe4+ Kh3 Qb1 Kh4 Qe4 Bf3 h1Q+ Kg5 Nh2 Bg2 Qf1 f3 Qfd3 Bh1 Bg4+ Kh6 Bef5 Kg5 Qb1 Na6 Rb8 a8Q Rb7 Nab8 Ra7 Qc6 Q5f8 Qcc3 Qfc5 Qd3 Qa1 Qb1 Qa2 Qa1 Qab1 Qa2 Qc4 Ne2 Bg1 Nd4 Q4c5
rr6/3np2r/1R1bPB1q/1BR2Q2/b1Rp2BN/4Q1Pr/qKnp4/2n3nk w - - 0 1 illegal: No possible last move
kq3K2/q2qNQ1b/N1p1prrp/4PbQ1/1B2B2b/Q1n1P3/3bB2R/3q2n1 w - - 0 1 illegal: Other
1r4Q1/q1q2n2/1pQ1Kp1k/RP5b/PbNrb2N/6r1/Q1b1p3/NB3nRr w - - 0 1 illegal: No proof kernel
rQ5b/pqp1pk2/PR1bbN2/1Q5b/2n1r3/1B3Prq/NrnR1Q2/2N2K2 w - - 0 1 legal: proof: e4 g5 h4 gxh4 c4 d5 c5 f5 b3 f4 c6 dxe4 Bb2 bxc6 Bd4 c5 Be3 fxe3 Qc1 c4 Qc2 Qd7 Qd1 Qd8 a4 h5 g4 h3 d4 h2 a5 e2 d5 c3 g5 c2 a6 c1B g6 h4 g7 h3 d6 Qd7 b4 Ba3 b5 Kf7 b6 Nf6 g8N Bg7 b7 Nc6 b8Q Ne5 Qa4 Nfg4 Qbb4 Nc4 Qb8 Nge3 Nf6 Rg8 Qbb4 Bh8 Qab5 Rg3 Nc3 Qf5 Qb8 Be6 d7 Qd5 d8Q Qb7 Qb5 Bb4 Nf3 Bd6 Rg1 h1Q Rd1 h2 Rd2 Qg2 Nd4 h1B Nb3 Qh3 Na2 Bf3 Nbc1 Bh5 f3 Nc2+ Kf2 e1R Rh1 Bb4 Qd4 Bd6 Be2 Reg1 Bd1 R1g2+ Kf1 e3 Qdc5 Nb4 Bb3 Nc2 Rg1 Rh2+ Rgg2 e2+ Kg1 Rg8 Rg6 Rg7 Qf2 e1R+ Qf1 Re4 Qf2 Rg2+ Kf1 Rg8 Rg5 Rg6 Rc5 R6g4 Rc6 R4g3 Rb6 Bf5 Qd4 Nb4 Rd3 Be6 Qg1 Rd2+ Qg2 Rb2 Rd2 Qf5 Qe2 Nc2 Qf2 Qh3+
3b1RQq/3p1n1P/p5rQ/qnKB1kpq/1N1P4/n4q2/nr2b2N/1R1N1Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 b5 e6 Ba3 exf5 Bb4 cxb4 Ra2 f4 Ra3 Rh4 Ra1 Rh8 Kf2 Ke7 d4 Ke6 c4 f5 h4 g5 e4 b3 e5 f3 Ke3 b2 b6 f2 c5 f4+ Kd3 g3 Kc4 a3 h5 a2 b7 g2 c6 f3 c7 Kf5 h6 Be7 h7 Nh6 e6 Rg8 Ne2 g1N Qa4 Na6 b8Q Rg6 Bg2 f1Q Qbb4 f2 Na3 b1N Qd1 Qh8 Bd5 Nf7 Qb6 Bd8 e7 Nb4 e8N Ba6+ Kc5 Qh3 c8Q f1Q Nf6 Qff3 Nc3 Rb8 Nc2 Be2 Qf1 a6 Nd1 Na3 Rb1 a1Q Ng4 Qh5 Nh2 Na2 Qbc6 Rb2 Nb4 Bc4 Qd6 Ne2 Qf8 Bb5 Qh6 Nec3 Rg1 Be2 Qb8 Bc7 Qg8 Ncb5 Rg4 Ba5 Re4 Bd8 Re8 Rb3 Rf8 Qc3+ Bc4 Qe1 Bd5 Rb2 Nc2 Qa5 Nb4 Rb6 Qg1 Rf6 Qf1 Rg6
1q2nB2/p2pB1rn/1kb3B1/2R2q2/1K1P1Q2/1pnRQ1N1/4q1Pn/b1Q1qr2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 b5 c5 Nc3 e5 Nd5 exf4 Nb4 cxb4 c4 f5 e4 h5 e5 f3 e6 f4 d3 a3 Kd2 h3 c5 f2 b6 b3 Kc3 h2 c6 f3 c7 h4 e7 h3 b7 a2 Ne2 Na6 b8B Nf6 Ba3 Rg8 Rb1 a1Q+ Kc4 Bg7 Nc3 Qb2 Rg1 h1N Ra1 h2 Bb4 Nh7 Ra3 Ng3 Qe1 h1Q Na4 Ne4 Qc1 Nc3 Qf4 Bb7 c8Q Nc7 Nc5 Bc6 Ra5 Qe2 Ne4 Bd4 Rb5 Rg7 Ng3 Qh3 Re5 Qf5 Rc5 Qe1 Be2 f1Q Rh1 f2 Rh3 Be5 Bf3 Bf6 Be4 Qfe2 Ba3 f1N Kb4 N7b5 Bd6 Nh2 Qa6 Nc7 Qc4 N3b5+ Qc3 Qb8 Qcd2 Ba1 d4 Q1f2 Qc1 Nc3+ Ka5 Qfe1 Bb4 Kf7 e8Q+ Kf6 Be7+ Ke6 Qh5 Ne8 Qhg5 Qf6 Bg6 Qf7 Rb5 Qf5 Bbc5 Kd5 Kb4 Bb7 Bcd6+ Kc6 Rc5+ Kb6 Qfe3 Bc6 Qgf4 Qe6 Bf8 Qf5 Bde7 Qd8 Qef3 Rc8 Q4g4 Qb1 Nf5 Nef6 Qf2 Qbe4 Rd3 Qc7 Qfe3 Qb8 Ng3 Re8 Bd6 Re5 Rc4 Rf5 Rc5 Rf1 Bde7 Ne8 Qgf4 Qf5
N1rRb2k/2p1rq1n/2n3q1/bp2P1Q1/B2n4/4R3/KPp2QQr/1rnN3N w - - 0 1 illegal: No proof kernel
rQ1qR2q/q1RQnp2/B2n4/pr2B1kb/4rN2/K2q3p/3b1PP1/BR4r1 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 a5 gxh4 a6 d3 Nd2 e5 Ndf3 bxa6 Bg5 a5 Nd4 exd4 Bc1 a4 Kd2 Ke7 e4 Kf6 b4 h5 c4 d5 e5+ Kg5 e6 a3 b5 h3 e7 h4 e8Q h2 b6 a2 b7 Ne7 c5 Bh6 c6 Na6 b8B Nc5 c7 Bg4 c8R Bh5 Bg3 Nb7 Bb8 Nd6 Qea4 Re8 Rb1 a1Q Rc4 a5 Qb4 h3 Ba3 Qd7 Kc1 d2+ Kc2 d3+ Kb3 d4 Rc3 Qa7 Qc2 d1R Rc4 d2 Ne2 d3 Rc7 Qh8 Nf4 Re1 Rg1 h1R Qc6 Re4 Bb2 d1Q+ Ka3 d2 Qd7 Qf3+ Bd3 d1Q Re1 Rg1 Ba1 Qfe2 Ba6 Qed3+ Rc3 Rg8 Bc7 Rg6 Qb8 Rf6 Re2 Rf5 Re3 Rb5 Re1 Ne8 Be5 Nd6 Re3 Qdd4 Re1 Q1d3 Re2 Qdb6 Re3 Qbd8 Ree1 Qdd4 Rc7 Qd3+ Bac3 Nc6 Ne6+ Kg4 Bg7 Bd2 Nf4+ Kg5 Re3 Reb4 Re8 Ne7 Be5 Qc2 Bb2 Re4 Ba1 Qd3+
q4b2/nB1R1q2/1rpNp2K/r1Np4/P1bnP1R1/2Q1p2k/N3R2r/2qQ2b1 w - - 0 1 illegal: No proof kernel
N1rq1b2/1b1p4/1p4pk/1rQPnB2/4n1r1/K1p4P/n3QRRq/1R2N1bQ w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 hxg4 b5 Rh6 c5 Rh8 Bb2 b6 Bd4 bxc5 b6 c4 b7 Ba3 Bf2 Bf8 Bb6 axb6 e4 f5 a4 Kf7 d4 Kg6 Kd2 c5 Kc1 f3 Kb2 f2 h3 c3+ Ka3 g3 a5 g2 e5 c2 a6 c1N a7 f4 e6 f3 d5 c4+ e7 c3 Rh2 Rh4 Bd3+ Kh5 Bf5 Nc6 b8Q f1R Qd6 g6 e8Q Na2 Qee2 Ne5 Qc5 Rg4 Qc1 f2 Nf3 g1B Rg2 Bb7 Ne1 Rb8 a8R Rc8 Ra4 Nf6 Rf4 Ne4 Qcd1 Bh2 Qc1 Rh1 Rf3 f1Q Rff2 Bg1 Nc2 Bh2 Nd2 Nf7 Nb4 Kg5 Na6 Qg1 Nc7 Ne5 Na8 Kh6 Nf3+ Kh5 Qcf1 Kh6 Rg3 Qg2 Qfd1 Re1 Qb1 Qh1 Rgg2 Rd1 Qc1+ Rd2 Qce1 Rb2 Rb1 Rb5 Q1f1 Bg1 Ne1 Qh2 Rf4 Bd4 Qh1 Bg1 Rf3 Nc1 Rff2 Na2
2Q1b3/R7/P1r1N3/N1pp4/nqQ2Q1q/3Ppbbr/1p1BNnB1/qk1n2K1 w - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 g5 h4 gxh4 a4 a5 b5 f5 Ra2 fxe4 Rb2 Nc6 Rb3 Nb8 Rb4 axb4 g4 Kf7 f4 Ke6 Kf2 Kd5 g5 Kd4 a5 h5 f5 c5 f6 e5 d3 d5 f7 b3 g6 b2 a6 h3 b6 c3 g7 c2 b7 h2 Qd2 h4 Qf4 h3 Qh4 Bd7 Qf6 e3+ Ke2 Nh6 g8N Nf5 Na3 Kc3 Ke1 e2 Kf2 e1Q+ Kf3 Ne3 Nc4 Bd6 f8Q Be8 Qf5 Nd1 Nd2 Qdh4 Qh7 Nd7 b8Q Nb6 Qe4 Na4 Nf6 Ra7 Qf4 Rc7 Bg2 Rc6 Nc4 Rh5 Be3 c1Q Bd2+ Kc2 Nh7 Qa1 Ne2 Kb1 Qb4 Bc7 Rg1 h1N Ng5 h2 Na5 Nhf2 Qbc4 h1B Q8f5 Bb8 Qc8 Bd6 Ne6 Bb8 Be3 Qb4 Bd2 Bc7 Ng3 e4+ Ke2 e3 Kf1 Rh8 Ne2 Qh5 Be4 Qh4 Rg7 Be5 Ra7 Bf3 Kg1 Rh5 Qg5 Bg3 Qf4 Bg4 Bg2 Bf3 Qcb8 Qg5 Qbc7 Rh3 Qc8 Qh4
1nk2rN1/q2bR2p/3nNR1r/bp6/bq1n4/1P1K2pr/1pB3NP/1Q2Q1Q1 w - - 1 2 legal: proof: g4 a5 d4 c5 b3 cxd4 g5 a4 g6 a3 e3 dxe3 Bb2 axb2 Bg2 fxg6 Bh3 g5 Bf1 g4 Ke2 g5 f4 d5 a4 Kd7 c4 e5 f5 g3 a5 g4 f6 d4 c5 d3+ Ke1 g2 a6 d2+ Ke2 e4 a7 Qc7 f7 Ne7 Ra2 Nf5 Qe1 Nd6 Nh3 g1R Ra3 Rg3 Nf4 Rh3 Ng2 g3 c6+ Kd8 Ra4 Bd7 Nc3 Kc8 Ra6 Rg8 Nd5 Rg6 Nf6 Rgh6 Qb1 b6 Ng8 d1B+ Ke1 e2 Kd2 e1N Bd3 Bh5 Bc2 Qb7 c7 e3+ Kc3 Be7 f8N e2 Ne6 Nf3 Kd3 e1Q Rg1 Qb4 Re1 Bhe8 Re3 Nc6 Re4 Rb8 a8Q Bd8 Qa7 Ra8 Qe1 Nb8 Re3 Ba4 Re2 b5 Qag1 Bc6 Re3 Qa7 Qb1 Nd4 Re5 Kd7 c8Q+ Ke8 Re2 Bd7 Qc3 Bb6 Qce1 Ba5 Nf8+ Kd8 Re7 Kc8 Rb6 Ne4 Rf6 Nd6 Ne6 Nbc6 Qbd1 Kb7 Rf1 Rf8 Qb1 Nb8 Rf6 Kc8
6b1/rpqR1Pp1/1r1b4/3p4/1q1Qq2K/kP2p1n1/bRrR2NB/Q4QNn w - - 0 1 illegal: No extended proof kernel
bR1Q4/1pB1p1p1/4NQrq/2b1Pp1b/Q6n/1PBq4/BK1rk3/1qn2nR1 w - - 1 2 illegal: Other
3R1B1k/q1rnrp1p/1p1Pq3/1nr2nbQ/b1KR1qQp/2R2NQ1/1P6/1N6 w - - 0 1 illegal: No possible last move, all moves rejected
2b3Bq/Nn2p3/2r1P3/r3NN2/1k1P1r1Q/3pQnp1/KBpb1r2/1Rbr3B w - - 0 1 illegal: No proof kernel
2b1b3/4p1q1/N1Q2rN1/r1PRPQ2/B1Kr2r1/1ppN1n1k/6pr/Qnb2R2 w - - 0 1 illegal: No possible last move, all moves rejected
qNNB4/PNpQ4/bR4n1/2PrQ2K/3bpp2/1Bp5/2r3n1/rknr2rQ w - - 0 1 illegal: No proof kernel
3rkrq1/1p1rp1bK/1B1RR3/2QB1rPp/1P1Q4/1bBpQN2/1b5n/r3n3 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 d5 gxh4 d6 a4 Nd2 cxd6 Bd3 d5 Nb3 axb3 Bf1 d4 Kd2 h5 g4 d5 f4 e3+ Kd3 h3 c4 b2 a4 b1R f5 e2 a5 e1B g5 h2 f6 Bc3 f7+ Kd7 c5 Nf6 a6 Qe8 a7 Na6 Be3 Bb2 Bg2 Bg7 f8B Qf7 c6+ Ke8 c7 Be6 Nf3 Ng4 Re1 Rd8 c8Q h1R a8Q Nh2 Qa7 Rf1 Qcc5 Rc1 Ra5 Ra1 Rb5 Rf2 Rb6 Rf1 Rd6 Rg8 Kd2 d3 Bg1 Rd7 Ke3 d4+ Ke4 d2 Qdc1 d1R Qe3 Bb3 Bh1 Bh8 Bg7 Rf8 Bf6 Bg7 Kf5 Qg8 Kg6 Qf7+ Kh7 Rf2 Nd2 Rf5 Bd5 Rd8 Nf3 Rd2 Qa5 Nc5 Be5 Nd3 Q5c5 Rdd1 Re2 Ne1 Bf6 d3 Bc3 Rdc1 Qed4 Rc2 Ree6 Rd7 Qab6 Rcc1 Qe3 Ra8 Qcd4 Rad8 Qbc5 Ra1 Qee5 Qf6 Qg4 Rb1 Qc6 Rg8 Bb6 Ra1 Qc5 Qf7 Qee3 Rf8 Qgd4 Qg8+
1b1b2Q1/q1b1p2Q/5k2/R1N3nr/b2p1r1B/p3pR2/PKn1P3/QN1N1n1r w - - 0 2 illegal: No possible last move, all moves rejected
6q1/pq1BpqQP/Q1rpK3/3n3p/b4B1b/1kq1N2P/r4RN1/1B1q1N1n w - - 0 1 illegal: Other
n1q1N2B/2n5/3Br2K/pRnPn1N1/Qr1bpp1k/1p1B1b2/2Q1P3/Nq5n w - - 0 1 illegal: No proof kernel
r2b3r/1r1pN3/RnpP4/1k2NpqB/2p5/n3P2N/3rRQq1/K1Qq2Qb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 f5 bxc4 b5 e6 Bb2 exf5 Ba3 f4 Bb4 axb4 a4 f5 d4 h5 Kd2 f3 Kc2 f2 Kb2 h3 g4 b3 b6 h2 e3 h4 a5 h3 a6 Nc6 a7 Qg5 b7 Nf6 b8Q Nb4 d5 Nc2 Qd2 Na3 Be2 f1R Qc1 Be7 Nd2 Kd8 Ndf3 Rd1 Ne5 Rd3 Qb4 Bb7 Qbe1 Kc8 d6 Bd8 Qf2 Nd5 Ra2 Rd2+ Ka1 Nb6 Bd1 Be4 Bf3 Kb7 Be2 Qg6 g5 Ka6 Bh5 c6 Rb2 Qg8 g6 Kb5 g7 Bf3 Ne2 Bg2 Nf4 Bd5 Re1 h1Q Re2 h2 Ra2 Qd1 Nh3 h1Q Qg1 Qg2 Qf2 Qf7 g8N Qf6 Ne7 Qfg5 Qg1 Nb1 Ra6 Na3 Qf2 b2+ Ka2 Rb8 a8Q Be4 Qb7 Ra8 Qa7 Nd5 Qd4 Nb6 Qdc3 b1R+ Q3c2 Qgf1 Qg1 Rb4 Ka1 Bh1 Qb2 Qfg2 Qa2 Rd3 Qd2 Rb2 Qde1 Rdd2 Qef2 Kb4 Qh2 Nd5 Ng8 Kc5 Qhg1 Rb7 Ne7 Nb6 Qh2 Kb4 Qhg1 Kb5
r1k2b2/1qqb2n1/RqpB4/PpP2B1R/Q3pQ2/1K4B1/Qp1b3r/n2N1q2 w - - 0 1 legal: proof: b4 h5 g4 hxg4 e4 a5 d4 axb4 d5 f5 Nd2 e6 e5 exd5 Ne4 fxe4 Ba3 d4 Bb2 Rh4 Bc1 Rh8 Kd2 g5 h4 d5 c4 Kd7 Kc2 b5 a4 g3 f4 b3+ Kb2 d3 h5 d4 a5 g2 f5 d2 f6 g4 h6 g3 f7 d3 h7 Nc6 Ne2 g1B Rh5 g2 Nc3 Nh6 c5 Be3 Qe2 g1Q Nd1 Nd4 Bh3+ Nhf5 Kc3 Qe7 e6+ Kd8 Qf2 b2 Qf4 Ng7 Bf5 Nc2 Kb3 Qf1 Ra4 Qd6 Rd4 Bd7 e7+ Kc8 Rd5 Qb6 Rd6 Qb7 Rb6 c6 Ra6 Rg8 h8Q Qb6 Qhh6 Rh8 Qf6 Qb7 Qd4 Qc7 Nc3 d1Q Qa4 Qdf3 Nd1 d2 Qd4 Qg3 e8Q+ Qd8 Qee5 Qb6 Qa4 Rh7 Qe6 Rh6 Nf2 d1Q Bd2 Qh2 Be1 Bd2 Qd5 Qg4 Nd1 Qgh4 Qdc4 Qe7 Qa2 Rh8 Qca4 Rh6 Qf3 Qhb8 Bg3 Q8b7 Qf4 Qed8 Rg5 Rh2 Rh5 Be7 f8B Bd6 Be7 Qdc7 Bf6 Be7 Be5 Bf8 Bd6 Na1+
RNBQ2Q1/2B1Pb2/1qpb4/NrP2p2/kpb5/1p1nn3/2rBKqN1/n4n2 w - - 0 1 legal: proof: b4 e5 a4 a5 d4 axb4 f4 exd4 g4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 c4 b5 e4 d5 h4 Kd7 c5 Kc6 e5 f5 e6 b3 h5 b4 h6 d3 g6 d2+ Kf2 d4 g7 g3+ Ke2 f3+ Kd3 g2 a5 Kb5 h7 c6 a6 f2 a7 Bd6 e7 Nh6 g8N Qb6 Na3+ Ka4 Be2 f1N Nb5 Be6 Nh3 g1Q Na3 Nd7 Nc4 Qf2 Nf6 Ng4 Nf4 Rhb8 h8B Bf7 Na5 Nge3 Ng2 Nc2 Bg7 Na1 Rh8 Rb7 Bh6 Rg8 a8Q Rg4 Qg8 Rf4 Qe1 d1N Bd2 Nde3 Qd1 Rh4 Bf4 Rh2 Ne8 Qc7 Nf6 Rb5 Qh7 Qa7 Ra8 Qb6 Qg8 Qg1 Bf3 Ne5+ Ke2 Nd3 Nd7 Qb7 Nb8 Bc7 Bc1 Nb2 Bd5 d3+ Kf3 d2 Nh4 Qb6 Be6 Be5 Bc8 Bc4 Qc2 d1B+ Qe2 Bf7 Qd8 Bc2 Qg2 Bd3 Qgg8 Rc2 Ng2 Bdc4 Bd2 Nd3 Ke2 Bc7 Bh6 Bg3 Bf4 Bh2 Bc7 Bd6 Ne1 Qg3 Ng2 Qf2#
QrR3Q1/R1qk4/2bB4/1R3bbn/2pr4/1Npp1p1B/2P1qnPq/b5KB w - - 0 1 illegal: Other
4bb2/p2Q1Q1r/P2R4/2R3Bn/rp3p1K/1PnR2q1/bb1pN3/1Qqk1Nr1 w - - 1 2 legal: proof: f4 e5 g4 exf4 d4 h5 d5 hxg4 d6 g3 Kd2 f3 Bg2 fxg2 Ke1 cxd6 Qd4 d5 Qd1 d4 h4 Ke7 a4 Kf6 e4 Ke5 c4 f5 a5 d5 a6 g5 c5 b5 c6 g4 h5 f4 c7 d3 h6 Kd4 h7 d2+ Ke2 Nf6 e5 Ne4 e6 Qh4 e7 Be6 c8R Nd7 e8Q Rb8 Qh5 Ndf6 Qf1 d1B+ Ke1 Nc3 Qf3 Ba4 Qf2+ Kd3 Qd4+ Kc2 Qf7 Nh5 Ne2 g1B Rh3 g2+ Rg3 b4 Rc5 Be8 Nd2 Rb5 Nf1 Ra5 Bd2 Ra4 Rd1 Qh3 Rd3 g3 Be3 Qh4 Bf2 Qg4 Qe4 d4 Qc6 Qf3 Qcd7 Ba2 b3 Qe3 Qde6 Qc1 Qed7 Rg8 h8Q Rg7 Qh6 Rh7 Qhd6 Be7 Qdg6 Bf8 Rf3+ d3 Bd4 Bg7 Bf6 Bf8 Bg5 Bd4 Re3 g1R Re6 g2 Rd6 Be5 Kf2 Bf6 Kf3 Bd4 Kg4 Bh8 Qge6 Bf6 Kh4 d2 Re1 B6g7 Qh3 Bf6 Qh1 Bh8 Neg3 Bhg7 Re3 Kd1 Rf3 Nb1 Ne2 Bb2 Rfd3 Nc3 Nh2 Re1 Nf1 g1Q Qe4 Qe3 R3d4 Qf3 Qb1 Qg2 Rd3 Qf3 Nh2 Rg1 Nf1 Qg3+
r2nr2Q/Q2P1bp1/3pQ3/1nbNRpp1/4q2q/B1R2P2/k2rNr1R/3n2K1 w - - 0 1 illegal: No extended proof kernel
K1k5/1N1pR3/p2qq1pb/r2Pbb2/1q1BBQ2/2r1Bnp1/PQ2b3/2R2Q1n w - - 0 2 legal: proof: f4 e5 g4 exf4 c4 h5 c5 hxg4 c6 g3 Nc3 f3 Nd5 bxc6 Ne3 c5 Ng2 fxg2 Qa4 c4 Qc2 Rh3 Qd1 Rh8 e4 f5 Ke2 c5 Ke3 c3 h4 c2 b4 c4 Kd4 g6 Kd5 c3 d4 f4 h5 f3 e5 f2 b5 Nh6 b6 Nc6 b7 Bd6 b8Q Ng4 e6 Qe7 h6 Kd8 h7 Nce5 Qb2 Ba6 Nh3 g1Q Nf4 Be2 Bg2 f1B Be4 Kc8 Be3 c1B Nd3 c2 Nc5 Nf2 Nb7 Bh3 Qf1 Bf5 Rh6 Rf8 h8B Nh1 Rh7 Nf3 Bf6 Qe8 e7 Be5 Kc5 Bd2 d5 c1Q+ Bc2 Qe1 Rc1 Qf7 Be4 Qe6 Rg7 Rd8 e8Q Qgf2 Re7 Qg1 Bd4 Bh6 Bg5 Qe3 Qh8 Qa3+ Qb4 Qaa6 Bge3 Qc3+ Qc4 Qad6+ Kb5+ Kb8 Qg7 Rc8 Qf6 Qb3+ Ka5 Rc6 Qc3 Kc8 Qb2 a6 Qg5 Rb8 Qf4 Rc7 Rc6 Qc3+ Kb6 Qd2 Ka7 Q2b4 Rc1 Rc3 Nd8 Rb7+ Ka8 Rb5 Nb7 Ra5
bk4K1/RNq3p1/2p1br2/1qb1b3/2PBQn2/1qpp4/3Pn2B/1QBQr1R1 w - - 1 2 legal: proof: e4 f5 c4 fxe4 g4 b5 g5 b4 g6 hxg6 Nc3 g5 Bg2 g4 Bh3 Kf7 Bf1 Ke8 Bd3 bxc3 b4 a6 b5 Rh3 b6 Rh4 Bc2 Rh6 Ba4 Rh8 Bb5 axb5 Ke2 e5 Ke3 d5 a4 Kd7 h4 g3 f4 b4 b7 d4+ Ke2 b3 h5 g2 h6 e3 Kd3 e4+ Ke2 b2 a5 b1B f5 Nc6 b8B Nge7 h7 Ra6 f6 Nd5 f7 Bd6 f8B Nf4+ Ke1 e2 Kf2 e3+ Kg3 e1Q+ Kg4 e2 Nf3 g1B Ng5 Be4 Nf7 Be5 Nd6 d3 Nb7 Nd4 Bc5 Rf6 Kg5 Re8 h8Q Kc6 a6 Be6 a7 Qc8 Qb3 Qd1 a8Q e1Q Qh5 Nde2 Qb1 Qb3 Ra7 Qg3+ Qg4 Qd7 Bd4 Be3 Re1 Qd5 Rh1 Qdb5 Rg1 Qh2 Qf3 Kd7 Qf1 Kc8 Qd1 Bc6 Na5 Bf3 Qe4 Bg2 Nb7 Re7 Qg6 Bc6 Qe4 Bf2 Nd8 Ba8 Nb7 c6 Bc7 Qh8 Bd6 Qd8 Bb8 Ng2 Bd6 Qc7 Kh5 Kb8 Kg5 Rf3 Kg6 Ngf4+ Kh7 Be3 Kh8 Rf1 Kh7 Rf7 Kg8 Re1 Be7 Bf2 Bh4 Be3 Bg3 Bf2 Bb6 Bc5 Bh2 Bf8 Be3 Bc5 Bd4 Rf6+
3Kr3/R3nN2/3QQqp1/Nb1bN1b1/B2pQ2n/4PnP1/R1ppr3/1bk2q2 w - - 0 1 illegal: No possible last move, all moves rejected
Q6q/p2B2pN/2p2B2/n1q3p1/2qn1kB1/2Rr4/2RP1bPK/1rnqQQ1b w - - 0 1 illegal: Other
5RK1/bPBBb3/p1b3kp/r1Q3N1/2p4R/1rqp3Q/n1n2rBP/b3R1q1 w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 dxc4 d5 f5 Na3 fxg4 Nb5 e5 Nd4 exd4 Kd2 Kf7 b4 g5 f4 c5 e4 c3+ Kd3 g3 Kc4 h6 e5 g2 b5 d3 b6 a3 e6+ Kg6 b7 g4 d6 a2 Kd5 c2 e7 c4 d7 g3 Ke6 Qa5 Be3 c1R Bb6 Rb1 Qf3 Nc6 Nh3 g1B Bg2 Rb3 Re1 a1B Ng5 Nf6 Re4 Ng4 Bc7 Nb4 Qf2 Qa3 Qc5 Na2 Rd4 Rh7 e8B+ Rf7 Re4 Bf2 Rhe1 Be7 Rd4 Ne3 f5+ Kh5 f6 Nc2 Rh4+ Kg6 Kd5 Qb4 d8Q Bd7 Qc8 Bc6+ Ke6 Qc3 Bd7 Rf8 f7 Be3 Bd5 g2 Bf3 g1Q Bg2 Rh8 f8R Rh7 Ne4 Rf7 Ng5 Rf2 Rhf4 Kh5 Kf7 Bd4 Kg8 Kg6 Be6 a6 Qd7 Rd8 Rh4 Be3 Qc8 Rd5 Beh3 Re5 Qg4 Bd4 Qg3 Be3 Bd7 Bd4 Qh3 Rd5 Qb4 Ra5 Qb5 Bb6 Qc5 Ba7
2Q4R/QBnbBR1q/2pp1b2/1P2NqB1/q5b1/pr2R3/r1Pkqp2/6Kn w - - 0 1 legal: proof: f4 b5 g4 g5 a4 bxa4 d4 gxf4 Nd2 e5 Ne4 exd4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 Ke7 b4 Ke6 e4 Ke5 h4 a5 g6 f5 h5 a3 g7 a4 h6 f3 h7 d3 b5 Kd4 e5 Kc3 e6 f4 e7 c6 e8R d6 Bh3 a2 Re6 g3+ Kf1 g2+ Kf2 d2 Qe1 Nh6 g8Q Nf5 Qg6 Qc7 Rh2 Be7 Rf6 Bd7 Qf1 d1B Re6 Na6 Rh1 Bf6 Qf7 Ng3 Bb2+ Kd2 Rb1 a1Q Re3 Qb7 Qg8 Nc7 Qc8 Re8 h8B Qa2 Re1 Re3 Be5 Ra3 Re3 Rb3 Bg7 Qa3 Bh6 Qc5 Bd4 Qf5 Bg5 Ra6 Bg4 Qa8 Rh8 Qb7 Nh3 Nh1+ Kg1 Ra8 Qc4 Qa6 Qc5 f2+ Kh2 f1Q Nf2 Ra7 Nd3 Qe2 Ne5 Ra8 Qa7 g1Q+ Kh3 Qge1 Rc1 Qed3 Kh2 Qee2+ Kg1 Qh7 Bb2 Qdf5 Rb1 Qed3 Bh3 Bg4 Rf1 Qe2 Bd4 Qa5 Bb6 Na6 Bd8 Nc7 Be7 f3 Rb1 Ra3 Rb4 Ra2 Rf4 a3 Qb6 Qb4 Qbb8 Ra4 Qa7 Qb3 Qca6 Rb4 Qc8 Qfe6 Rf5 Qa4 Rf4 Rb3 Rf5 Bg7 Rf7 Bf6 Qab7 Be8 Qca8 Bh5 Qaa7 Qd7 Be6 Bg4 Bf5 Qd8 Bc8 Qd7 Qba8 Qdf5 Bb7 Bd7 Qc8 f2+
1B1RR3/1p1nRn1q/1b1Q4/pPQ1r1n1/2KQ2pp/4n2b/nNk4P/3Nnr2 w - - 1 2 legal: proof: g4 c5 a4 f5 d4 cxd4 e3 fxg4 a5 Qxa5+ Ke2 e5 Nc3 Qa2 Ke1 e4 Bd3 exd3 Nb1 Qa6 Ra5 Qc4 Ra1 Qa2 Kd2 Kf7 f4 Ke6 b4 Kd5 e4+ Kc4 f5 h5 e5 d5 b5 g5 e6 a5 f6 g3 e7 g2 e8R h4 f7 Rh5 Re2 Bc5 f8Q Nd7 Qf5 Bb6 Qf4 Nh6 Re4 Nf7 Nh3 g1N Qdg4 Nf3+ Kd1 d2 Ke2 d1N Qfg3 Ne1 Re8 Nf2 Nc3 Qb1 Qd6 Ne4 Bf4 Rb8 Nf2 d3+ Kf1 d2 Ke2 d1N Nd3 Kd4 Nb2 Ne3 Ncd1 Ra8 c4 Rb8 Nf2 Kc3 c5 d4 c6 Kc2 c7 Ndf6 Ra4 Ned5 Qf3 Nh6 Qd7 d3+ Kf1 d2 Ke2 d1N Qg2 Nd3 Re1 Kb3 Qgg4 N5b4 Re6 Na2 Rd4 Ra8 Qe7 Bd7 Re5 Rf8 c8Q Bf5 Qg1 Bh3 Qcc5 g4 Rd8 Nd7 Re6 Rd5 Bb8 Ng5 Qed6 Rff5 Kd2 Nhf7 Ree8 Rf6 R1e7 Ne1+ Ke2 Re5+ Kd2 Ndc3 Nfd1 Rf1 Qgd4 Nd5 Ba7 Qh7 Bb8 Ne3 Ke2 Nb4 Kd2 Ka2 Kc3 Kb1 Kb3 Na2 Rc8 N3g2 Kc4 Kc2 Rcd8 Ne3+
1qN5/r2r4/3BQ2P/nNp5/1nQ1BKpb/p1bn3k/P2Q2bp/1R1Nbn2 w - - 0 1 illegal: No proof kernel
q1R2q2/4R3/p2RQ2Q/1b2r2N/n1N3nk/1KpBbppp/PQ2b1P1/1rn5 w - - 0 2 legal: proof: f4 d5 c4 b5 h4 e5 h5 exf4 b3 b4 h6 dxc4 Bb2 Qd5 Rh3 Qh5 Bc3 bxc3 Rh2 Qxh6 Rh1 Qh2 e4 Ke7 d4 Kf6 b4 Kg5 e5 c5 b5 f5 b6 h5 d5 h4 b7 f3 d6 f4 d7 h3 d8Q+ Nf6 e6 c2 Kd2 c1Q+ Ke1 f2+ Ke2 a6 e7 c3 Kd3 f3 Kc4 c2 e8Q Qcf4+ Q8d4 Kh4 Qa4 g5 Na3 g4 Qb3 Rh5 Nb1 Bd7 Qe1 Re5 Qb2 Bh6 Na3 Bb5+ Kc3 c4 Qdd2 Nbd7 b8R Nb6 Rc8 Rb8 Bd3 Na4+ Kb4 c3+ Kb3 g3 Ne2 f1B Rd1 Ng4 Nc4 Qf8 Nf4 Qg1 Nh5 Qa7 Qee3 Be2 Rhe1 Qa8 Qe4 Bg7 Qh6 Bf6 Qeg6 Bg5 Qe6 Rb7 Bf5 Be3 Rd6 Rf7 Bg6 Rf4 Bd3 Rd4 Bh7 Rd1 Bd3 Rb1 Qe7+ Bg5 Rg6 Rc5 Rgc6 Bf1 Re4 Be2 Rd6 Rd5 Qf7 Be3 Re7 Re5 Qfe6 c1N+
1R1Rb1N1/1npNrqb1/B1P4p/3q1r2/4Rnbp/1p4P1/2kp1QNQ/4K2n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 d4 gxh4 e5 f6 d5 e6 Bf4 exd5 e6 d4 Be5 fxe5 a4 Ke7 c4 Kd6 f4 Kc5 f5 d5 g3 b5 e7 e4 e8R h6 a5 e3 f6 d3 a6 Kd4 f7 e2 a7 d2+ Kf2 Kd3 c5 d4 c6 b3 Bg2 e1Q+ Kf3 b2 Qc1 d1N Rh3 b4 Qf4 b3 Nc3 b1B Re4 Bg7 f8N Qd5 Nge2 Kc2 Bf1 Rh7 Rh2 Nf2 Nd7 Na6 Ra5 Rb8 a8Q Nc5 Rb5 Nf6 Qa6 Ra8 Rb8 Nh1 Qa3 Qf7 Nd5 Nh5 Ne7 Qa5 Ng8 Nb7 Qf5 Qd2 Nf4 Ra5 Ng2 Nf4 Ba6 Rc5 Qh3 Rf5 Qf8 Qa5 Qb4 Qad5 Qb6 Nd3+ Ke2 Nf4+ Ke1 d3 Ndf6 Bd7 Qe3 Be8 Nd7 Kb2 Qe2+ Bc2 Qf2 Kc3 Rd8 Bd1 Rb4 Nc5 Rbb8 Nb7 Ne3 Be2 Rg2 Kb2 Qh2 Kc1 Rg1 Bg4 Ng2 Kb1 Qb6 Kc2 Rf1 Kc1 Rf2 Kb1 Re2 Kc1 Re5 Kc2 Re4 Bc3+ Kf1 Qfe6 Qh3 Re7 Qh2 Bg7 Ke1 Qf7 Qf2+ d2+
1Q4K1/1Bp1RQ2/r1n2RNb/p1R2p1p/1kbpqb2/1q1r1QnP/P3r3/1B6 w - - 0 2 legal: proof: e4 b5 d4 e5 f4 f6 c4 bxc4 f5 exd4 e5 Kf7 e6+ Ke8 Bf4 Bb7 Nd2 Bc8 Be5 fxe5 Ne4 g6 f6 Bd6 Ng3 Bf8 Nf5 gxf5 Ke2 a5 Kf3 d5 b4 h5 g4 e4+ Kf4 c3 Ke5 d3 b5 d2 g5 d4 e7 Kd7 h3 e3 g6 c2 f7 c1R e8B+ Ke7 g7 e2 b6 e1B b7 Ra6 Nf3 Nf6 g8Q Be6 Bc6 Bh6 f8R Bc4 Nh4 Qe8 Bd3 Rc3 Rc1 Ne4 Rf6 Ng3 Bb1 Rd3 Qf3 d1Q Rf1 Bf2 Re1 Qb3 Be4 Bfe3 Ng6+ Kd8+ Qe6 Qc6 Qf7 Re8+ Re6 Re7 Kf6 Kd7 Rc2 Bhf4 Kg7 Bh6+ Kh7 Bef4 Rf6 Qd5 Kg8 Nc6 b8Q Qe5 Bd5 Qe4 Be6+ Kd6 Bc8+ Kc5 Bb7 Kb4 Rc3 Qd5 Rc2 Re2 Rc3 Red2 Re7 Re2 Rc2 Qe4 Rc3 Bb5 Rc5 Bc4
1N4rk/1n1p2bq/1ppRbR2/2pP1N2/1P1R2q1/1p2QnBQ/b2nN3/2Kr4 w - - 1 2 illegal: No possible last move, all moves rejected
1NQ1Rrb1/qP1K2p1/1q1p1k2/B1p3N1/1p4Qn/2rB3B/1pP1Qq1b/3n1b2 w - - 0 1 illegal: No proof kernel
r2b2Q1/3p1p2/kpbBq2P/4qbR1/2K1p2Q/1P1NrrN1/p2Rn3/3nNQ2 w - - 0 1 illegal: No proof kernel
nr1RNq2/1p3Qp1/5pbb/1RKn4/2Q3R1/B2P1PrB/1nppkB2/3n3n w - - 0 1 illegal: Other
qr6/1Np5/pp2P1pB/4rb2/1R1Q1rkn/1rP3r1/1n1b1QRp/K1QN2N1 w - - 0 1 illegal: No proof kernel
nB1R1nbQ/p1pPb1R1/k1r2qnp/2r4P/n6N/1R3B1p/r2Bp3/4Q2K w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 Nc3 f5 Nce2 fxe4 Ng3 g6 h5 g5 Nf5 Nd7 Nh4 gxh4 Be2 Nb8 Bd3 Qd5 Bf1 Qd8 f4 Kd7 Kf2 Kc6 b4 Kb5 g4 e5 Kg2 e3 d4 e2 g5 e1N+ Kh2 a3 d5 h3 f5 a2 f6 e4 f7 e3 g6 e2 g7 c3 d6 c2 Bg2 Nd3 Bd2 c1N Qc2 Nd7 Qd1 Nf4 Bf3 Be7 f8R Nd5 Bf4 Nd3 Qd2 N5b6 Qd1 Ka6 Rb1 a1R Qe1 Nb2 Bd2 N2a4 Rb3 Rb8 Re8 Na8 b5+ Kb6 Rf8 Ra2 Re8 Nf8 d7 h6 Bd5 Ba6 Nf3 Bb7 Rg1 Bc6 Be4 Bd5 Nh4 Kb7 b6 Ka6 b7 Bd6+ Kh1 Rh7 Bg2 Qf6 Be4 Ne7 g8Q Bf7 Rg7 Neg6 Qh8 Bg8 Bf3 Bc5 Re5 Re8 b8B Re6 Ree3 Rc6 Re8 Bd6 Rge7 Bb4 Re6 Re7 Rd8 Re8 Re7 Ba3 Rg7 Re5 Be4 Be7 Bf3 Rec5
n7/4pN1R/KnRBbnQ1/p1b1pNp1/7N/3nPr1p/1r4RP/3Q1qrk w - - 0 2 legal: proof: b4 c5 a4 cxb4 g4 b5 g5 bxa4 g6 fxg6 Bg2 g5 Bd5 g4 Be6 dxe6 c4 Kf7 f4 Kg6 d4 Kh5 Kd2 Kh4 Kd3 g5 e3 h5 d5 a5 c5 b3 Kc4 g3 Kb5 a3 f5 b2 d6 a2 d7 g2 c6 Nf6 c7 Bg7 Qc2 Qf8 d8Q Na6 Nf3+ Kh3 Qdd3 g1R Qcb3 Kg2 Nbd2 b1N Nc4 h4 Nce5 h3 Qbd1 Nd2 Nf7 Nc4 Ba3 Nb6 Rc1 a1N Rc6 Nc2 Bd6 Ne1 Qe4 Bd7 c8N Rb8 Qeb1 Rh4 Qe4 Rf4 Nh4+ Kf2 Qed3 Rf3 Q3b1 Ne8 Qbd3 Bd4 f6 e5 Qf5 Be6 Qg6 Rf1 Rg1 Bc5 Rg3 Rg1 Rg2+ Kf1 Nh6 Rb7 f7 Nf6 N6f5 Rb8 Qa4 Nd3 Qb3 Qg8 f8R Qf7 Rh8 Qf8 Bc7 Rb7 Ncd6 Rb8 Nf7 Rb7 Bd6 Rb8 Rc8 Nc7+ Kc6 Nca8 Rh7 Nc4 Qc2 Rb2 Qa4 Ncb6 Kb7 Qe8 Rc7 Qb5 Rc6 Qc4 Rg3 Qc1 Ka6 Kf2 Rg4 Qf1 Qa1 Rg2 Rg3 Kg1 Qd1 Kh1 Rg4 Rg1 Rg3 Ne4 Rg2 Nf6
3kB1B1/1Qnn2R1/Q5bp/1pp1n3/p2Q3n/BrP2p2/P3RNbr/3Kb2q w - - 0 2 legal: proof: f4 c5 b4 cxb4 h4 g5 f5 gxh4 f6 d6 Nc3 exf6 Na4 f5 Nc5 dxc5 Rh2 f4 Rh3 Qg5 Rh1 Qd8 e4 a5 d4 b5 g4 f5 e5 h3 g5 b3 c3 h2 e6 b2 e7 b1B d5 f3 g6 f2+ Ke2 f4 d6 f3+ Kd2 Nd7 g7 Bg6 Bb2 Ngf6 g8B Ng4 Bgc4 Nge5 Qb3 Bh6+ Kd1 Bd2 Bg8 Be1 Bh3 f1N Qe6 Qc7 Ba3 Ne3+ Kc1 Nd5 Kd1 Qb8 Rc1 Ra6 Rc2 Nc7 Re2 Qa8 Bf5 Qe4 Nh3 Qh4 Rg1 h1N Nf2 Ng3 Be4 Qh1 Bc6 Nf5 Qd5 Nh4 Rg5 Bf7 Rg7 Bh5 Ba8 Bg6 Qb7 Ra7 Qa6 Nb6 Bb7 Bh3 Bc8 Bg2 Bg4 Ra8 Bh5 Kd7 Qb7 a4 Qa6 Rf8 Qb7 Rf4 Qa6 Kc6 d7 Rb4 e8Q Rb3 Qf7 Kd6 d8Q+ Kc6 Qa5 Nbd7 Qdf6+ Kb7 Qd6 Kc8 Qd4 Kd8 Qfd5 Be4 Be8 Bg6 Qb7 h6 Be6 Rf8 Bg8 Rf5 Qaa6 Rh5 Qdd6 Nf5 Qd2 Rh2 Qd4 Nh4
k3b1b1/pnBq2Q1/2pr4/2p1N1b1/2npQ1P1/P2p3B/1BNK1R2/b2nrQ2 w - - 0 1 legal: proof: c4 g5 b4 h5 f4 gxf4 g4 e5 d4 exd4 c5 h4 Nd2 b6 Rb1 bxc5 Rb3 Rh7 Rf3 Rh8 Rg3 hxg3 h4 d5 e4 Kd7 h5 Kc6 b5+ Kb7 a3 f5 h6 f3 b6 g2 e5 d3 e6 Nc6 h7 Nge7 Nb1 f2+ Kd2 Bd7 Nf3 g1B Nd4 Bg7 Qf3 Na5 Qg2 c6 Kc3 Be8 Bd2 Qd7 Bh6 Rd8 Rh3 Ka8 Rh1 Nb7 Rh2 f4 Qh1 f3 Kd2 Nf5 e7 Ne3 Nc2 Nd1 Bh3 f1B Rf2 Ba1 Bg7 Bg2 Bb2 Bh2 Qe1 d4 Qf1 Rf8 h8Q Bf4+ Ne3 Bg5 Qg7 Rf4 Nc2 Rf8+ Ke1 Rf6 Nd2 Rd6 Nc4 Rc8 Ne5 Rd8 Ne3 Bh1 Kd2 Rb8 Rg2 f2 Rh2 Bd5 Rg2 Bh5 e8Q Bg8 Qeg6 Rf8 Qe4 Rf4 Nc2 Rf3+ Qf4 Re3 Qe4 Be8 Rg3 Be7 Rf3 Bg5 Rf7 Re1+ Rf4 Na5 b7+ Kb8 Qg1 f1N+ Kc1 Bd8 Rf2 Nfe3 Kd2 Bg5 Qgh1 Kc7 b8B+ Kb7 Qg1 Ka8 Qf1 Nb7 Bc7 Nc4+
1b4QB/BQ1K1ppr/1pp2k2/2P3r1/2n1qbbQ/2qN1p1B/R4PN1/n6b w - - 0 2 legal: proof: e4 d5 g4 dxe4 b4 h5 a4 hxg4 Ra3 a5 Rc3 axb4 Rf3 exf3 d4 e5 Kd2 Ke7 Kd3 g3 Kc4 e4 Kc5 b3 c4 c6 h4 e3 a5 g2 d5 b2 d6+ Kf6 a6 e2 a7 e1Q h5 Bh3 h6 Rh7 Qa4 Qde8 Nd2 b1B Nb3 Qc3 Ne2 g1B Nf4 Bh2 Ng2 Ne7 d7 Bf4 d8Q Bbf5 Be3 Bfg4 Nc1 Na6+ Kb6 Bb8 Nd3 Nc5 Qc8 Ng6 Qb4 Rh8 h7 Qe4 Qe8 Be7 Qg8 Nb3 Rg1 Bf4 Bd4+ Ne5 Kc7 Re8 a8Q Na1 Ba7 b6 c5 Rd8 Qa4 Rd5 Qb7 Bd6+ Kd8 Nc4 Rh1 Rf5 Kd7 Bde5 Be2 Nc2 Ra1 Bb8 Ra2 Na1 Qb4 Bg3 Bf1 Bgf4 Nge1 Bg2 Qa4 Bh1 Bh3 Nb3 Ng2 Na1 Qgc8 Re8 h8B Ree5 Qg8 Rh5+ Kd8 Ref5 Kd7 Rh7 Qd1 Nd2 Qg1 Nc4 Qh2 Rh6 Qg3 Rh7 Qh4+ Rg5+
3N2B1/B5r1/1n1Qb1Rb/rpbNp2k/pKp1Qp2/P2BPb2/1n3Qq1/7q w - - 0 2 legal: proof: c4 g5 b4 c5 f4 cxb4 g4 gxf4 g5 d5 a3 dxc4 Nh3 h5 Rg1 Bg7 Rg4 hxg4 Ng1 Bf8 Nc3 Qb6 Bg2 Rh5 Qb3 Bh6 Bb2 Rh3 Kf1 Qb5 Nf3 Qc5 Rc1 Qa5 Nb1 Qf5 Kf2 Bg7 Rh1 Qa5 Ng1 Be6 Bc1 Qd8 Ke1 Bf8 Qd1 Bc8 Bf1 Rh8 h4 b5 d4 a5 Kd2 e5 d5 f5 h5 Kf7 d6 b3 Kc3 f3 d7 f4 h6 Kg6 h7 g3 Nd2 g2 Nb1 b2 Qd4 f2 Qa7 a4 Rh2 Na6 Nh3 g1B Rg2 Nf6 Be3 Kh5 g6 Bh6 g7 Rg8 h8Q Nc5 Ng5 Nd3 Nf7 Qe8 d8Q Qc6 Rg3 Be6 Qd6 Qg2 Qh7 Nd7 Qe4 Nb6 Rg6 Qh1 Nd8 Qg2 Nd2 b1Q Bc5 Qd1 Nb1 Nb2 Kb4 Qc1 Nc3 Qe1 Qab7 Ra5 Qe3 Qd1 Qbe4 Qd5 Q3d4 Qa8 Nd5 Qh1 Bh3 f1B Bf5 Bg2 Qf2 Bf3 Bd4 Re8 g8B Re7 Bc5 Rg7 Be3 Nc8 Ba7 Nb6 Qg3 Bd4 e3 Qb7 Qe1 Qe7 Qf2 Qg5 Bh3 Qg4 Bf1 Qgg2 Bd3 Bc5+
2qN2q1/1rRP2p1/b1K3p1/pRbpQ1B1/3R4/1n1r2Q1/PkN1rp2/3n1Qr1 w - - 0 1 illegal: No proof kernel
b2BB3/1p2KB2/k1pq3R/1Np2N1n/p1r3PQ/p1n3rp/Pb3r2/QN2n3 w - - 0 1 illegal: Other
N3k3/1BR2p1Q/2b2K2/Npp2rp1/Qn1b1qp1/2Pn2pn/3Pb1NQ/1Rr5 w - - 0 1 illegal: No possible last move, all moves rejected
RN1N4/q1bp2B1/Np3p2/1pp2n2/kb1rn3/2p2Qr1/P2Q1P1p/2RbRK2 w - - 0 1 illegal: No proof kernel
n3bN1N/RB3q1b/2Bq1k1b/5r1R/Prr1nN2/rn2b3/2B2P2/1K2R1r1 w - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 h5 d5 cxd5 g6 d6 gxh5 Rh3 h4 Rh2 Bg4 Rh1 Bc8 e4 f6 d4 Nd7 d5 Nb8 Qd4 Kd7 Bf4 exd4 e5 Ke8 e6 Nh6 Bh2 Ng8 Be5 fxe5 Kd2 h5 Kc2 c5 g4 b5 e7 Kf7 e8B+ Kf6 a3 b3+ Kb2 d3 d7 b4 d6 e4 Bh3 c4 Ne2 d2 Ng3 d1Q Nd2 e3 Ngf1 e2 Nf3 e1B Rc1 c3+ Kb1 b2 Ne5 c2+ Ka2 b1R Bf7 Na6 Nh2 Qe7 d8R Bd2 d7 Be3 Re8 Nc7 d8N Bfh6 Nc4 Bd7 Be6 Qdd6 Rce1 Qf7 Bg2 h3 Bed5 h4 Nf1 h2 Bb7 h3 Re7 Be8 Ne6 c1R Ne5 Rc4 Ng6 Ra5 a4 Na8 Ng3 Rf5 Rhf1 h1B Ne2 h2 Bgc6 Be4 N2f4 h1R Nef8 Rg1 Rd7 Rh7 Nh8 Ra1+ Kb2 b3 Rc7 Ra3 g5+ Kg7 g6 Nf6 Re7 Bb1 Rc7 Ne4 Re7 Kf6 g7 Rb4 g8B Rhg7 Bh7 R7g4 Re2 Bd3 Rc2 Rh4 Kb1 b2 Re1 Nc5 Ng2 Rhc4 Nf4 Nb3 Re5 Rfg5 Ra5 Bg6 Ra7 Rf5 Bg8 Bh7 Rc3 Bd4 Rh3 Be3 Rh5 Rd4 Kc2 b1N Kb2 N1d2 Kc2 Ne4 Kb1 Qfc7 Bc4 Qcd7 Bd3 Rdc4 Bc2 Qf7
1Bk2Nq1/1n1bnB1r/RP2r1N1/2P1p3/pn1n1q1n/nB2N3/3b4/RR5K w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Qf3 g5 Qg3 gxf4 g5 Nc6 Qf3 Nb8 Qg4 hxg4 Kf2 a5 Kg2 d5 c4 Kd7 h4 e5 b4 a4 g6 f3+ Kh2 f2 h5 d3 g7 e3 c5 e2 h6 e1N h7 d2 b6 d1N b5 g3+ Kh3 g2 Kh2 d4 b7 d3 b6 d2 Na3 Na6 b8R Nc3 Nb5 d1N Nh3 g1N Nd6 Nc2 Nf7 Nb1 Nd6 Ne7 g8B Nb2 Ng5 Nd4 Bb3 Na3 Bfc4 f1Q Nf5 Nb4 Ne6 Bh6 Ne3 Qg8 Nf8+ Kd8 Rb7 Bd7 Ra7 Kc8 Bf7 Nbc4 Ra6 Nd6 Bd2 Nb7 Be1 Ng6 Bh4 Qf4+ Kg2 Ra7 Bd8 Ngf3 Rhb1 Nfh4+ Kh1 Ne7 Bc7 Qgg5 Ne6 Re8 h8N Qg8 Nf8 Qfg3 Nc2 Bd2 Ne3 Qf4 Bb8 Ned5 Re1 Re6 Nhg6 Ne7 Reb1 Nd8 Bc4 Be8 Nd7 Nef5 Ndf8 Rd7 Bb3 Nb7 Rd1 Rde7 Rdb1 Bd7 Be8 Rh7 Bf7 Ne7
RnRB1B2/1N2pn1K/Np2bp2/1q2P2R/r1n3n1/kP1r3n/3N2b1/3B2r1 w - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 b3 cxd4 f5 a5 f6 a4 Nh3 a3 Ng1 gxf6 Kd2 f5 Ke1 f4 Qd3 Qb6 Qc3 Rh3 Qb2 axb2 a4 Qc7 a5 Qd8 a6 Bg7 a7 Be5 Na3 Na6 Nb1 Bb8 axb8R Rh8 Kf2 d5 h4 Kd7 e4 Kd6 c4 Kc5 e5 Kb4 h5 d3 c5 f6 c6 d2 c7 d1N+ Kg2 d4 h6 f3+ Kg3 d3 Kf4 b6 h7 f2 Nd2 b1N Ngf3 g3 Ne1 g2 Rh5 g1N Be2 Ne3 Bd1 Be6 c8N f1B Nd6 Nh6 Nb7 Qd7 Rc8 Rd8 h8B Qb5 Bg7 Nf7 Bf8 Na3 Ke4 Nac4 Nc2+ Kc3 Ra4 Nb8 Ba3 Ng4 Nb4 Nh3 Na6 Ra7 Bb4+ Kb2 Bd6 Ra8 Bc7 Bg2+ Nf3 Rd5 Bd8 d2 Ra3 Rd3 Ra1 Bd5+ Kf5 Be6+ Kg6 Ra7 Kh7 Ra8 Be2 d1R Nd2 Rg1 Bd1 Ra7 Nac5 Ra4 Ra3 Rb4 Ra8 Ra4 Na6 Ka3
RN2r3/5B2/2B3Pn/6BR/r3bPp1/pbrp3n/1NnR1Nq1/1k1bbK2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 g4 b5 e4 fxe4 axb5 g6 h5 gxh5 g5 Qc7 Qf3 Qd8 Qg4 hxg4 b4 Kf7 c4 Ke6 f4 Kf5 g6 a5 c5 e5 c6 d5 b6 h5 b7 h4 c7 a4 b5 h3 b6 e3 Ne2 Ke4 Rg1 Kd3 Ra2 e4 Ba3 h2 Bd6 h1B Rb2 a3 Rb5 Kc2 Nbc3 d3 Be5 d4 Ng3 d2+ Ke2 d1B+ Ke1 e2 Bg2 d3 Ra5 Bb4 Ra4 Nd7 b8R Nf8 b7 Be6 c8B Nh7 Ra6 Nh6 Kf2 e1N Ra5 e3+ Kf1 Qd5 Na4 Kb1 Nb2 Nc2 Bf6 Re8 Bg5 Be1 Ne4 Bf7 Rc5 Ra4 Nf2 Qe4 Bd7 Bb3 Ra8 Qc6 Bd5 Be4 Rg2 e2+ Kg1 Rc8 b8N Qb7 Rb5 Rc3 Bf7 Qc6 Bh4 Qb7 Rh5 Ng5 Bc6 Nh3+ Kh1 Bd2 Bg5 e1R+ Kh2 Re2 Kg3 Be1 Rh2 Bf5 Kg2 Re8 Kf1 Be4 Nh1 Qa7 Rd2 Qe3 Nf2 Qf3 Ra6 Qg3 Ra8 Qg2#
1K1Bb3/PpNq3q/5N2/rn2nN2/bR1r4/2B1b2k/Bp1P2p1/rR3rR1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Qc2 exf6 Qb2 f5 Qa3 f4 Qg3 fxg3 e4 Kd7 Ke2 f5 Ke3 g5 Kd4 c5+ Ke5 b3 a4 c4 h4 f4 h5 g4 a5 f3 h6 f2 h7 c3 a6 c2 d6 Ne7 Rh6 Nec6+ Kd5 Ne5 Ra4 Nbc6 Bc4 f1B Rg6 Na7 Bb2 c1R Na3 Nb5 Ne2 g1Q Ba1 g2 Nd4 g3 Rb4 Qh2 Nf5 g1R Bc3 b2 Ba2 Ra1 a7 Bh6 Rg8 Be3 Rg4 Rg8 h8R Rg5 Rg8 Qh5 Rf4 Bd3 Rf1 Qh7 Rb1 Bc2 Rg6 Ba4 Rg8 Nd4 Nb5 Rf1 Nc7 Rb8 Kc5 Ra8 Kb6 g2 Rf8 Qde7 Rf6 Qe6 Rh6 Qee7 Rh1 Qd8 Rg1 Qe8 Nd5 Ke6 d7 Rb8 d8B Bcd7 Kc7 Bdb5+ Be7 Rd8 Nf6+ Rd5 Nh4 Rg4 Nf5 Qd7+ Kb8 Bc6 Bd8 Nb5 Rd4 Rg5 Rc4 Rd4 Rb4+ Nc4 Bb3 Ke5 Ba2 Kf4 e5 Kf3 e6 Ne5 e7 Rh5 Nd6 Kg3 e8N Kh3 Nc7 Qdf7 Na6 Be8 Nc7 Qd7 Nf5 Rh6 Ne4 Ra6 Nf6 Ra5
2BrRr2/7N/5B1q/qNn5/N1bp2pK/BPR1R1pp/1rrPn3/4nk2 w - - 0 1 legal: proof: h4 e5 a4 Qxh4 g4 f5 c3 Qh2 f4 fxg4 f5 Bb4 cxb4 b5 Qb3 bxa4 Qg3 Ba6 Qe3 Bc8 Qf4 exf4 e4 Ke7 b3 Kd6 f6 Ke5 f7 Kd4 f8N d5 b5 c5 b6 g5 b7 h5 e5 a5 e6 h4 e7 c4 e8R f3 Rd8 a3 Nd7 f2+ Ke2 c3 Nh3 c2 Ra2 g3 Kf3 g4+ Kf4 a4 Kg5 Na6 b8B Nf6 Nc3 Nh5 Be2 f1R Nf6 Rf8 Bf3 Kd3 Nh7 d4 Ne2 Be6 Neg1 Bc4 Rb2 a2 Rb1 a1N Re8 a3 Be5 a2 Ba3 c1R Bf6 Nc5 Ne2 Nf4 Nhg1 Nc2 Bb7 a1Q Bc8 Ne1 Nc3 Ne2 Na4 Rc2 Rc1 Qh3 Rh2 Qc3 Rf2 Qa5 Rf5 Qh1 Rfe5 h3 Kh4 Qc6 Nf3 Qca6 Nfg5 Rb8 Ne6 Qd6 Ba6 Rd8 Nc7 Qe6 Nb5 Rb2 Rh5 Qe3 Bc8 Qh6 Bh8 R1f7 Be5 Rc7 Rc3+ Ke4 Bf6+ Kf4 Rc1 Kf3 Rc3+ Kf2 Ree3 Kf1 Re8 Qg7 Rhe5 Rc6 Re4 Qg6 R4e5 Qh6+ Rh5 Bd3 Rc2 Na6 Rc5 Rc7 Rce5 Rcc2 Re3 Bf5 Rc3 Nc5 Ree3 Bd3 Re8 Qf4 Rhe5 Bc4 Ree3 Qh6+
3B2K1/3Bq1R1/1qnBrN2/1rRnq2b/1p1R1N1b/rP6/P1q2q1b/1k1b3N w - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 f5 cxd4 b3 a5 f6 a4 Nh3 a3 Ng1 exf6 Qd3 f5 Qc3 f4 Qb2 axb2 Kf2 Ke7 c4 Kf6 h4 Ke5 e4 b5 h5 g5 c5 d5 h6 f5 h7 d3 c6 Kd4 c7 f3 Kg3 f2 e5 f4+ Kg2 b4 e6 f3+ Kg3 d2 e7 d1Q e8R Ra3 Re2 Kd3 Nh3 d4 Re1+ Kc2 Rg1 d3 Re3 d2 Be2 f1R Rg2 f2 Ng1 Re1 Bf3 f1Q Rd3 Be7 Bc6 Qde2 Nh3 d1B Bf4 Nf6 Nc3 b1Q Bd6 Nd5 Bd7 Nc6 Nf2 Qe8 Rd4 Qe5+ Rf4 Qa6 Ne2 Qb6 Nh1 Bf6 Rg1 Q8e7 Rg2 Bb7 c8N Kb2 Rg1 Qc2 Rc1 Re8 h8B Ba6 Nd4 Bae2 Ne6 Rd8 Bg7 Rh8 Bf8 Rh5 Bc7 Bf3 Bd8 Re3 Nd6 Bfe2+ Kg2 g3 Rd4 g4 Ne8 Bh4 Nf6 Rg5 Rf1 Re4 Rf5 Rh5 Rg5 Re3 Rg7 Re4 Kg1 g2 Nf4 Rg5 Kh2 g1B+ Kg2 g3 Kh3 g2 Ng8 Qd2 Nf6 Bh5 Rcc4 Kb1 Rc5 Qf7 Bfe7 Qc2 Bd6 Qfe7 Be8 Bg3 Bd7 B3h2 Kh4 Be3 Nh7 g1Q Nf6 Qgf2+ Ng3 Nc3 Ra5 Qec5 Rb5 Qf3 Ra5 Re6 Nh1 Qcd5 Rb5 Qde4 Ra5 Rc5 Rb5 Nd5 Kg5 Qe5+ Kh6 Bf2 Ra5 Bh4 Rb5 Qce2 Kh7 Qff2 Kh8 Qc2 Kg8 Qa7 Rb8 Rca5 Rb5 Qb6 Rc5 Rb5
2b2KnB/5pq1/nb5p/3NqR1n/3r1P1N/1RB2Pk1/q1B1R2b/1N3qrq w - - 0 1 illegal: Other
N1B3q1/3R2N1/nrb1PRK1/n1nq1p2/q2b1PkB/1R2p1N1/4npb1/1B4r1 w - - 0 1 illegal: No proof kernel
2RBnk1b/B5qK/5r2/q2p4/pnN1NnRp/4Nq2/3r1P1P/1b1BrR1n w - - 0 1 legal: proof: d4 b5 a4 bxa4 Qd3 c5 Qd1 cxd4 g4 e5 g5 e4 Qd3 exd3 g6 fxg6 Nf3 g5 Ng1 g4 Kd2 d5 c4 a5 e4 g5 b4 h5 b5 g3 b6 h4 c5 a3 c6 g2 c7 g4 e5 a2 e6 g3 e7 Nc6 b7 Nf6 b8B Bf5 c8N Ra6 Nc3 Bg7 Bb2 Nb4 Rb1 a1Q Nge2 g1N Nf4 g2 Ba7 Nh3 Rd1 g1N Re1 Ne2 Nb1 Ng3 Rg1 Nh1 Ng2 Nf4 Nc3 a4 Bc1 Qa5 Ne3 Re6 Rg5 Rf8 Ne4 Bh8 Nb6 Kf7 Rg4 Ne8 Nbc4 Bh7 Kd1 d2 Be2 Qa3 Rf1 Rf6 Nc3 Bb1 Ne4 Rg8 Bf3 Rg5 Bb2 Re5 Bc3 Ng6 Ke2 d1R Ba1 Re1+ Kd2 d3 Bd1 Nf4 B1d4 Qb3 Bdb6 Qa2+ Kc3 d2 Kd4 Qc2 Bd8 Qc1 Nc2 Ree6 N2e3 Rc6 Ke5 Rc5 Bc2 d1Q Bb3 Qf3 Bd1 Rd6+ Kf5 Rf6+ Kg5 Kg8 Nb2 Rc2 Nbc4 Ng6 Kh5 Rd2 Kh6 Kf7 Kh7 Nf4 Nb2 Qcc7 Nbc4 Qe5 Bc7 Ng7 e8R Qg5 Rb8 Ne8 Bd8 Kf8 Rc8 Qg7+
1r1b1nr1/nBkP1R2/8/b3rN2/q1p1bpbR/1p3q1B/R1P1q1NB/K2N4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 f6 gxf6 g5 f5 Qf3 f4 Qg4 hxg4 Kd1 Kd7 d4 c5 h4 b5 a4 e5 a5 f5 d5 b3 g6 b4 g7 g3 d6 b2 a6 g2 h5 e3 a7 b3 h6 f3 h7 c4 Ra5 e2+ Kd2 e1R Kc3 f2 Rh3 e4 Nd2 b1Q Re3 f4 Bd3 f1B Bb2 Qe8 Ngf3 g1B Ra2 Ne7 g8N Ng6 Nh4 Bg2 Bf1 Nc6 Ne7 Rg8 h8R Qd1 Nb1 Qf3 Nef5 Rb8 a8B Na7 Bb7 Be7 Rh6 Bh1 Ng2 Nf8 Rh4 Bd8 Ba3 Bf2 Kb2 Ba5 Re2 Bfb6 Bc5 e3 Ka1 Bd8 Rd2 e2 Bg1 Ne6 Bh2 Nf8 Ba6 Kc6 Bb7+ Kb6 Rd1 Qa4 Nc3 Be6 d7 Kc7 Rh7 Bd5 Rf7 Be6 Nfe3 Bh3 Nf5 Bg4 Rb1 Rd1 Rc1 Rd5 Nd1 e1Q Nge3 Qfe2 Bh3 Qf3 Ng2 Re5 Bg3 Qg1 Nc3 Rg5 Nge3 Nb5 Bf1 Qe4 Re1 Qgg2 Ncd1 Qd2 Re2 Bhf3 Rh2 Na7 Rh4 Qe2 Bh2 Rg8 Bh3 Q4d3 Ng2 Be4 Re7 Qde3 Rf7 Q3f3
5n2/2n1qK2/RbNq1Bp1/r2B4/NrbNp1R1/r2BP1n1/1p4P1/k2b2Rn w - - 0 2 legal: proof: d4 a5 b4 axb4 f4 g5 d5 gxf4 d6 cxd6 Qd3 d5 Qe4 d4 Qg6 hxg6 Kf2 f5 Kf3 Kf7 h4 Ke6 a4 Kd5 e3 e5 c3 b5 a5 e4+ Kf2 b3 h5 d3 h6 Kc4 a6 d5 a7 f3 Kg3 f4+ Kh2 d4 h7 b2 Ne2 Kb3 c4 f2 c5 f3 Kg3 b4 Kf4 d2 Ke5 d1Q c6 d3 c7 d2 Ra6 Nd7+ Ke6 Bc5 Nf4 Ngf6 Ra2 Bb6 Rh5 Ne8 Rf5 Nf8+ Kf7 Ba6 c8R Bc4+ Rd5 Nc7 Nc3 b1R Bd3 f1N Na4 f2 Ne6 Ng3 Bb2 f1N Bf6 Nh1 Rg5 Nfg3 Rg4 Rg8 h8N Ra1 Rc2 Ra3 Rc1 Ka2 Rb1 Rb8 a8B b3 Bd5 b2 Nd4 Ra8 Rb8 Ra5 Ra8 Qd6 Ra6 Qc1 Nc6 d1B Nd4 Qc3 Rc1 Qcb4 Rb1 Be2 Rg1 Bd1 Be6 Ka1 Bd5 Na8 Ke8 Qbc5 Nf7 Rh8 Ne5 Nc7+ Kf7 Rh5 Bf1 Rb5 Nec6 Rb4 Be6 Qce5 Bd5 Qg5 Bd3 Qh4 Be6 Ra5 Bd5 Qg5 Re1 Qge5 Rg1 Qee7+
1n3bNK/rpp3N1/n1R1b1Rr/1P2qNB1/2B4p/1pR5/1Prn2qb/3k3B w - - 0 2 illegal: Other
1N2Rqn1/3R1R2/4b1K1/2p1B1rr/2pPBpr1/N3rPp1/1B1N1knb/3qn3 w - - 0 1 illegal: No possible last move, all moves rejected
1n5R/1pp3rp/2P1RN1b/kB3R2/nN4qr/1q2pb2/nPB2bN1/1Bb3K1 w - - 0 2 illegal: No proof kernel
K3R1n1/4q3/Bp3B2/1pqbNp2/1R1rbnrP/p5R1/P1B3q1/NNb1k2b w - - 0 1 legal: proof: b4 c6 g3 Na6 Bg2 Nb8 Bd5 Qb6 Be4 Qd8 f4 g5 Bd3 a5 Ba6 a4 b5 cxb5 d4 gxf4 g4 h5 g5 e5 Qd3 exd4 Qg3 Bg7 Qf3 Bf8 Qg4 hxg4 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd3 Kf5 h4 g3 e4+ Kg4 c4 f5 e5 a3 g6 g2 c5 Kg3 c6 Kf2 g7 f3 e6 Qe7 c7 Nd7 Nd2 Ke1 Nh3+ g1Q Nf4 f2 Rh3 f1Q+ Ne2 Qfg2 Rg3 Ndf6 Rb1 Nh5 Rb4 Nf4+ Kc2 d3+ Kb3 d4 Bb2 Rh7 Nb1 d2 Nc1 d3 Bf6 d1B+ Kc3 d2 Nb3 Rb8 Na1 Bf3 Kb3 Bd7 c8N Be4 Na7 Qgc5 Nc6 Rd8 Ne5 Rh8 Rc3 Bdc6 Rg3 Qcg1 Kc3 Rd4 Kb3 d1B+ Kc3 Qd8 e7 Bdf3 e8R Qe7 Kb3 Bcd5+ Kc3 Nh6 g8B Q1f2 Bf7 Ng8 Be6 Bh6 Bf7 Bc6 Bb3 Bcd5 Ba4 Rh7 Bc2 Rg7 Rc4 Qd8 Kb4 Rg4 Kc5 Qe7+ Kb6 Qe3 Ka7 Qc3 Rb4 Qcc5+ Kb8 Qg1 Ba4 Bh1 Ka8 Qg2 Rbb3 Nh3 Rb4 Bc1 Bd1 Nf4 Bc2 b6+
3B1b2/1BQ5/b3q1Nr/3nPB2/1nB3p1/2n1RN1k/2q2Pr1/1nnrB2K w - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 h5 g4 b5 axb5 a5 bxa5 hxg4 Be3 e6 Bc1 e5 e4 d3 Ra4 f6 Rd4 exd4 e5 f5 Qf3 Qe7 Qd5 Qd8 Qe4 fxe4 c4 g3 h4 Ra6 h5 Kf7 h6 Kg6 h7 Kf5 c5 Kg4 b6 d5 c6 g5 c7 d2+ Ke2 d1N b7 g2 Na3 e3 Rh3 d3+ Ke1 d2+ Ke2 d4 Nc2 Qe7 Na3 Nc6 b8Q Nf6 Nb5 Rg8 h8B Nd5 Nd6 Ncb4 Nf7 Rh6 a6 Qe6 a7 Rgg6 a8B Ba6+ Qb5 Rg8 Bb7 Rgg6 Rf3 Kh4 Rg3 d3+ Kf3 e2 Qa5 e1Q Bf6 Rg8 Bd8 Rg7 Nh3 g1N+ Kg2 Ne2 Re3 Kg4 Qb6 N1c3 Kh1 Nb1 Nh8 d1N Bd2 Nc1 Qc5 Qe2 Be1 Kh4 Ng1 d2 Qc6 Nd1c3 Nf3+ Kh5 Qb6 d1R Qa5 Qc2 Bc4 Rhg6 Qb6 Kg4 Qc6 Kh3 c8B Qg4 Qc7 Rh6 Bf5 Rgg6 Be4 Qe6 Bed3 Rh4 Be4 Rg4 Bed3 Rh6 Ng6 Rg2 Bf5+ g4
2rR2qq/N1Nb4/QN3Pq1/4KbNr/n3q3/knP2RB1/3N1b1p/5r2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 cxd4 Be2 f5 exf5 axb4 Bc4 b5 Ba2 b3 axb5 bxa2 Ke2 e5 Kd3 Ke7 Ke4 Kd6 f4 Kc5 g4 Kb4 b6 h5 b7 d5+ Kf3 h3 g5 e4+ Kg3 e3 f6 h4+ Kf3 d3 g6 d2 g7 h2 f7 e2 f5 e1R Kf4 h3 Qg4 d1Q Qe2 d4 Qg4 d3 Qf3 d2 Qe2 Nf6 g8N Nc6 b8N Rf1+ Nf3 Nd4 Rg1 h1Q Ke5 h2 Ne7 Nd5 Rg8 Nb6 Ng5 Rh5 Qa6 Qg4 Nd7 d1B Nd2 Na4 Nb6 Bd7 Nec8 Bc5 f8N Nb3 Nfe6 Bf2 Na7 Rc8 Nc7 Be2 Rb1 a1Q+ Rb2 Ka3 f6 Qb1 c3 Qg6 Rh8 Qf8 Rg8 Qfh6 Rd8 Bd3 Rb1+ Ka2 Ba3 Qh8 Bd6 B3f5 Re1 Qc4 Re3 Qcg8 Rf3 Qg2 Bc5 Kb2 Be3 Qh1 Bf4 Ka3 Bg3 Qg2 Re3 Qc6 Rf3 Qe4+
3B1B2/n1R1qb1K/1B1n4/4rbQ1/b2n1PPN/nrr1kq2/B5r1/1B3bR1 w - - 0 1 legal: proof: c4 d5 h4 dxc4 d4 g5 b4 gxh4 Nc3 a5 Ne4 axb4 e3 Bg7 d5 Bd4 exd4 f5 Be2 fxe4 Bd3 Ra6 Bf1 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 e5+ Kh5 b5 a4 h3 f4 e3 g4 e2 a5 e1Q a6 c3 a7 c4 Bd2 c2 Bc1 e4 Ra4 c3 Ne2 h2 Bh3 e3 Ra1 b3 Bd2 c1R Ra6+ Nc6 Rg1 h1B Rb6 b4 Rb8 b2 Rg3 b1N Qb3 c2 Rb6 Nf6+ Kh6 Qd1 Rf3 Be6 Kg7 h5 Ng3 h4 Bg2 e2 Qa2 e1R Bf1 b3 Qa5 h3 Bd3 b2 Qa2 h2 Nh5 Rb8 a8B Ne8+ Kg6 Bg2 Rb7 h1B Ng3 Qe7 Rf1 Rh2 Rc7 Qf3 Qa5 Na3 Rg1 b1B Bc4 Re4 Ba2 Na7 Bc6 Rb4 Bb5 Re5 Bd3 Bh3 Bf5 Bf7+ Kh7 Rg2 Be4 Rb5 Bb4+ Rc5 Bf5 Rd1 Bd3 c1N Bf5 Bd3 Be4 Bb5 Beb1 Ba4 Qb5 Rd3 Qa5 Qd7 Qb5 Ne2 Qa5 Ke7 d6+ Kf6 d5 Rcc3 Qc5 Nd4 Nf5 Qe7 d7 Nd6 d8B Rb3 Nh4 Rdc3 Ng6 Rh2 Nh4 Bf1 Qb5 Rg2 Qc5 Ne8 d6 Ke6 d7 Nd6 Qb6 Kd5 Qb5+ Ke6 Bc5 Kd5 Qa5 Rgc2 Bb4+ Ke4 Qd5+ Ke3 Qb5 Re4 Qg5 Rg2 Bc5 Re5 Bb6 Qf8 Bf6 Qe7 d8B Rgb2 Bg7 Bhg2 Qf5 Bd3 Bf8 Bgf1 Qg6 Rg2 Qf5 Bdc4 Qg6 Bce6 Qg5 Bf5+
1q2qNrB/5q2/qN1n4/2RbQ1bK/q1rb3R/1qPR4/1b1RPrk1/4R3 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 Nh3 h5 Qd3 f5 Qd1 f3 Ng1 f4 Bh3 Nc6 Kf2 Nce7 Ke1 Nf5 gxf5 Bc5 Bg4 hxg4 Qd2 Be7 Qd1 Bf8 Kf2 Ke7 a4 Kd6 h4 Ke5 f6 d5 f7 b5 h5 g5 c3 g3+ Kf1 d3 a5 b3 h6 f2 Kg2 f1R a6 d4 h7 b2 a7 d2 Qb3 d1Q Ra5 d3 Ra1 d2 Rh6 f3+ Kh1 Kf4 Qe6 f2 Kg2 g4 Qe7 b4 Rh3 b3 Ra6 Bb7+ Rc6 Nf6 Rh2 Qe8 Rh6 Rc8 a8R Rg8 h8R Ne4 Rb6 Rg6 Rh2 Nd6+ Nf3 Bd5 R8h7 Rc4 Na3 b1Q Raa6 b2 Rc6 Qa4 Rc5 Qd3 R2h3 b1Q R7h4 Qbb8 Rh1 Bh6 Ra7 Bg5 Rd7 Qab3 Qf6+ Ke3 f8R Qa4 Bb2 d1Q Qf5 Qdb3 Qe5+ Re4 Rg1 Qdb5 Nd4 Qba6 Kh1 g2+ Kh2 g3+ Kh3 Q6c6 Ne6 Qca6 Rh1 g1B Rg8 g2 Nf8 Bh2 Rgh8 Bhf4 Kg4 g1B Kh5 Rd1 Rhh7 f1Q Nc4+ Kf2 Nb6 Bc1 Ba3 Kg2 R1h3 Rf4 Rd3 Bd4 Rh1 Qf2 Re1 Bb2 Rd8 Qf1 Rd2 Rf2 Rd3 Ba1 Bc1 Bb2 Bf4 Bh4 Bh6 Bg5 Bg7 Rd2 Rh3 Rd3 Bh8 Rdf3 Rh6 Rf7 Rd3 Rc7 Kg4 Rc8 Rh4 Rc6 Ra5 Rc4 Rc5 Qh1 Kh5 Qh3 Rd2 Qf5 Rd7 Qfe6 Rf7 Q6e7 Rf3 Q7f7 Rfd3 Rg8+
2qR3N/2Nb2k1/3Bnnb1/q1q1r2B/2QP4/2q1r1N1/1r1qpKNP/N2b4 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 f5 a4 fxe4 c4 h5 Ra3 d5 Rg3 dxc4 Rg4 e6 f5 Bd6 g3 Bf4 gxf4 hxg4 f6 Kf7 f5 c5 d3 b5 a5 g5 a6 g3 a7 g4 Nf3 b3 Bb2 c3 Qd2 b4 Qc1 e3 Ke2 g2 Ke1 g1Q Nh4 c4 Qc2 e5 Qd1 e4 Ke2 c2 Nf3 c1Q Bh3 g3 Ba1 c3 Bb2 g2 Qe1 c2 Nbd2 Qa5 Ba1 b2 Nb1 b3 Qb4 Bd7 Nbd2 b1B Be5 b2 Bg4 Nc6 Bd6 Rh5 Nb3 Re8 a8N Nd8 Qc4+ Ne6 Nfd2 Ba2 Bf3 b1B Na1 Bb3 Nf1 Qca3 Bg4 c1Q Ng3 Qcc3 d4 Q3c5 Nc7 Qgc1 Rf1 g1R Rf4 Re7 Rf2 Kf8 f7 Kg7 f8N Nf6 Ng6 Rg2 Nh4 Bd1+ Kf1 Rg5 Bh5 Re8 Rf3 Rb2 Ng2 e2+ Kf2 Q3d2 Rb3 Bd3 Rb8 e3+ Kg1 Qcc2 Rd8 e1Q+ Nf1 Qh4 Ng3 e2 Kf2 Qg4 Qa2 Qc2c3 Qc4 Nd5 f6+ Kh6 f7 Re5 f8N Nf6 Qa4 Kg7 Ng6 B3c2 Nh8 Bg6 Qc4 Re3 Na8 Qgf5+ Bf4 Qc8 Nc7 Qfc5 Be5 Ng5 Bd6 R8e5 Qb5 Ne6 Qd3 Rb3 Qc4 Rb2
r3qn1n/n1Rqnnb1/6kB/2Q2pN1/7B/2nB2b1/1r1R1PPK/1B4Bn w - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 e4 a5 h4 axb4 d5 Be6 d6 Bd5 exd5 gxh4 a4 h5 a5 f5 a6 Kf7 a7 b5 d7 c5 d6 e5 Qc2 e4 Nh3 b3 Ra6 c3 Bf4 b2 Qc1 c4 Be3 b4 Na3 b1N Ke2 b3 Qe1 c2 Bb6 c1B Qd2 c3 Qc2 e3 Kf3 e2 Ra5 e1Q Be3 b2 Rb5 Bg7 Rb7 Ne7 Rb6 Kg6 Ng5 h3 Kg3 h4+ Kf4 h2 Rb3 h3 Qd1 c2 Kg3 Nc3 Qd5 b1N Qe5 Nb5 Nc4 N1c3 Nd2 Rh7 Rg1 h1N+ Kh2 Ng3 Nde4 Nge2 Qc5 Nf4 Rb2 Qc8 d8B Nd7 Ba5 Nf8 Bc7 Qd7 Bd3 Bd2 Rf1 c1N Ng3 Rh4 Bb1 Ncd3 Rc2 Bc1 Rd2 Ne5 Rh1 Rh8 Rg1 Rb8 a8B Na7 Bae4 Nf7 Bed3 Qe2 Rgd1 Rb2 Rc2 Qe1 Rdd2 Qe2 Be4 Qeb5 Bd3 Qe8 d7 Qa4 d8B Qad7 Kg1 h2+ Kf1 h1N Kg1 Kh6 Kh2 N4g6 Be5 Rg8 B3f4 Ngh8 Bb8 Bd4 Bbe5 Kg6 Bg7 Nec6 Bh6 Ne7 Qc6+ Nd6 N5e4 Nd1 Re2 Qf7 Kh3 Bg7 Nf1 Nd5 Bh4 Ne7 Bh2 Bf4 Nfg3 Nh7 Ng5 Ra8 Red2 Nf8 Bg1 Qfe8 Qc7 Ndf7 Kh2 Nec6 Qa5 Ne7 Rc7 Nc3 Qc5 Bxg3+
2R1nr1R/1r2r1Q1/3N2b1/1p2n1r1/rb4RB/Rr1nq3/BPP3K1/kq3R2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 g5 a5 gxh4 a6 Bxa6 Nc3 f5 exf5 Bb7 Nd5 Bc8 Nc7+ Kf7 Ne8 Kxe8 f4 Kf7 Kf2 Kf6 g4 e5 Qe1 d5 Qe3 h5 Qd3 a5 Qc3 h3 Bc4 a4 Ra2 a3 Rh2 e4 Qd3 e3+ Kf3 h4 Qe4 d3 Rd2 d4 Be6 e2 Kf2 e1R Ne2 h2 Qg2 h1Q Qe4 h3 Ng1 h2 Rd1 d2 Qe2 d3 Qf1 Qd4+ Kg3 Nd7 Qg2 Rb8 Qd5 Rb7 Qe4 Bb4 Qf3 Ne5 Bd5 Qe3 Ra1 a2 Ne2 Be6 Nc3 Bf7 Bb3 Bg6 Be6 Re2 Rf1 d1R Bf7 d2 g5+ Kg7 Ne4 Nf6 Bc4 Rf8 Nd6 Ne8 f6+ Kh7 f7 Kg7 Rb1 a1R f5 Ra4 Ra1 Qhg1+ Kh3 h1N Ba2 Rg2 Qg3 Re1 f6+ Kh7 Bc4 d1R Ra3 Rd3 Ba2 Rb3 Bd2 Ree2 Be1 Nf2+ Kh4 Ne4 Kh3 Nc5 Bf2 Ncd3 Be1 Bh5 g6+ Kh6 g7 Bg6 g8R Kh5 Qf3+ Kh6 Bh4 Rg5 Qg3 Kh5 Rf3 Qb1 Rf1 Qf4 Qg1 Re4 Qd4 Qe3+ Kh2 Kg4 Kg2 Nf3 Qc3 Ree7 Rg7 Nfe5 Qc7 Rg8 f8R Rh8 f7 Rg8 Rg1 Rh8 Rh7 Rg8 Rh8 Kf4+ Kh2 Kf3 Rg4 Ke2 Kg2 Kd1 Qc3 Kc1 Qd4 Ng7 Rc8 Rf8 Qc3 Ne8 Qd4 Nf3 Qg7 Nfe5 Rh6 Rg8 f8R Rh8 Rf3 Rf8 Rf1+ Be1 Nf7 Qa1 Rf6 Bb4 Rh8 Rc3 Be6 Kb1 Nd6 Qa2 Bg8 Ka1 Rf1+ Qc1 Rb3 Qab1 Bc4 Qe3 Bf7 Rcc7 Rc3 Rc6 Ba2 Rcc7 Rb3 Rc3 Ra3 Rb3
1K2B3/Br1pQ3/1rq3rB/1NR1nBrq/b6R/P2b3q/2n1P2r/Br1k4 w - - 0 1 illegal: No possible last move, all moves rejected
R3b1bn/2b1nn1q/N1N1b1kb/2P2RN1/1Q6/N4nPp/2q5/B3rNrK w - - 0 1 legal: proof: a4 c5 d4 cxd4 h4 e5 f4 exf4 h5 b5 e3 d3 axb5 g6 c3 gxh5 Be2 h4 Bf3 Be7 Bd5 Bb4 Bb3 Bf8 Bc2 dxc2 Kf1 f5 b4 Kf7 c4 d5 g3 h5 Kg2 a5 b6 a4 b7 d4 c5 d3 e4 f3+ Kh2 f4 b5 f2 b6 f1N+ Kg2 a3 e5 f3+ Kf2 h3 e6+ Kg6 e7 h4 e8N h2 Bh6 c1N Nd2 a2 Qb3 h3 Bf4 Qc7 Qb5 Bh6 Bg5 Nd7 b8N Ne7 b7 Ne2 Nd6 Ne5 Rd1 a1B Qa6 Nf4 Bh4 Be6 Re1 Nf7 Re2 Be5 Qc6 Ra2 Qa4 Re8 N2e4 d2 Nb5 d1Q Ng5 Qc2 Na3 Nd2 Nc6 Qd7 b8N Bc7 Re5 Rb2 Ke3 f2 Rf5 f1B Kf2 Bb5 N1f3 Ra2 Ra1 h1B Nh2 Bhd5 Kg1 Nf3+ Kh1 Rd8 Ne5+ Kg7 Qe4 Qc6 Nbd7 Qd1+ Nf1 Nfg6 Rf6 Rg2 Qb4 Nd6 Nf8 Nh8 Ngh7 Qc2 Nfd7 Bg8 Nb1 Ba2 Nb8 Bae6 Ra8 Q6e4 Na3 Be8 Na6 Ndf7 Nc6 Rd1 Bg5 Qg6 Rf5 Rc1 Be3 Re1 Ng5 Qh7 Bd4+ Kg6 Ba1 Rg1#
1Br4B/K1B4q/4B1P1/P1b1Q2R/2n3qq/2p4b/q1Nkb2b/3rRnBb w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Na3 f5 Nb1 f4 Qb3 h5 Qf3 Bc5 Nc3 Bf8 Nd1 Qe7 Nf2 gxf3 g4 Qd7 g5 Qd8 Ng4 hxg4 Kf2 Kd7 h4 Kd6 e4 Kc5 a4 Kd4 h5 f5 d6 c5 d3 Kc3 a5 b5 e5 c4 d4 b3 h6 b4 d7 b2 h7 b1Q e6 b3 d5 g3+ Ke1 b2 e7 f2+ Ke2 f3+ Ke3 g2 e8Q Nh6 d6 Ng4+ Kf4 Nh2 Ke3 Qa2 Qh5 b1Q Qh6 Bb7 Ba3 Nc6 Qg6 Ne5 Qg7 Rc8 Bd3 f1B Bc5 f2 Nf3 g1B Nd4 Be2 Nc2 Qb4 g6 Qh4 d8B Qg4 Bh4 f1B+ Bf2 Bh3 d7 Bd5 Ba7 Bc5+ Nd4 Qba4 Bb8 Rhd8 h8B Bdg2 Be4 Qh4 Bf3 f4+ Ke4 Qd1 Kd5 Kd2 Nc2 Nf1 Be4 f3 Bf5 Qh7 Be6 Bh2 Bg1 Qe1 Qf6 Qeh4 Re1 Qg4 Qf5 f2+ Qe4 Bd4 Kd6 c3 Qd5 Bgf3 Qe4 Nc4+ Kd5 Rf8 d8B Bc5 Bdc7 Rfd8+ Kc6 Be5 Kb7 Nh2 Ka6 Bhf1 Rb1 Rf8 Bg7 B1g2 Bd7 f1Q Bb6 Qe1 Ka7 Bed6 Qe6 Bc6 Qe8 Rf1 Bh8 Qeg3 Ra1 Rb1 Qe7 Nf1 Rh5 Bh3 Qe4 Bb7 Be6 Q3h4 Qf5 Bh2 Qe5 Rb5 Re1 Rb1 Qg7 Rd1 Qe5 Ba3 Bd8 Bh1+ Bdc7 Bc5+
2rR2K1/2B2B1n/1rqPB3/2Qbb2B/2rb4/qrRNb2p/1n1P2bk/2B5 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g4 h5 h4 hxg4 Nc3 Qg5 Ne4 Qf6 Nf2 Qd8 Nfh3 gxh3 Kf2 Kd7 Kf3 Kd6 Ke4 b5 a4 f5+ Kd4 c5+ Kd3 Ke5 e4 g5 a5 c4+ Ke2 b3 Kf3 c3 h5 b4 a6 b2 d6 b1R h6 c2 a7 b3 h7 g4+ Ke2 b2 Kd3 g3 Kc4 f3 Ne2 f4 Ng1 f2 Qf3 g2 Qd1 f3 Qe1 Kf4 Kd5 Kg3 e5 Be6+ Kd4 Nc6+ Kc5 Bg7 Ra5 Qc8 Be2 Bd5 e6 Be5 e7 Nf6 e8B Qc7 Qf1 Rc8 a8B Nb4+ Bac6 Rg8 h8B Nh7 Bf6 Rg4 Bf7 Rh4 Qd1 f1Q Ra8 f2 Beh5 Qd3 Nf3 g1B Ne1 Qa3 Bd8 Rg4 Nd3 f1B+ Nf2 Qb7 Bc7 Bfg2 Bd7 Rd4 Nd3 Be3 Rf1 Kh2 Bde6 Qba6 Qg4 Q6a4 Rf3 Qe8 Kb6 Rc4+ Qd4 Qd7 Nf4 Nd3 Qc5 Nf2 Nd3 Nd1 Ne1 Ra1 Nd3 b1R+ Nb4 Nb2 Nd3 Qc3 Rb8 Ra3 Ra8 Rg8 Rd8 Rb3+ Ka6 Qc6+ Ka7 Ra3+ Kb8 Rb3+ Kc8 Qa5 Rg3 Qa3 Rf3 Qca6+ Kd7 Qc6+ Ke7 Rb6 Rd7 Rc8 Rg3 Na4 Rd8 R1b3 Bfg6 Nb2 Kf7 B5d4 Kg8 Nd1 Bb2 c1B Bgf7 Be5 Bc3 Bb2 Bb4 Qaa4 Ba3 Bbd4 Bc1 Qa3 Ne1 Bg1 Rc3 Nb2 Nd3 Bge3
1k2q2b/2p1Q1b1/R2B1N1n/1rqR4/2bR2b1/PPR3n1/1nK3b1/2r2RBn w - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 f5 a5 e3 a4 b3 a3 Bc4 bxc4 Nc3 e6 Na4 exf5 Nb2 axb2 Qg4 f4 Qf3 Nf6 Qd1 Ng8 g4 Kd7 d4 b1Q Kd2 f5 a3 h5 e4 f3 e5 h3 d6 f4 g5 f2 d5 f1B g6 f3 g7 f2 Nf3 c3+ Ke3 c2 Kd2 h2 Qe2 h4 Qe3 h3 Ng5 Qe8 Ne4 Nh6 g8R Bg2 Rg3 Nc6 Rd1 h1N e6+ Kd8 d7 f1B Rf3 h2 Nf6 Ne5 Qe4 Bg7 Rc3 Ra5 Bb2 Ke7 d8R Bc4 Qh7 Ng3 d6+ Kf8 d7 Ke7 Qe4 h1N Qe3 Kd6 e7 Nd3 Rf1 Qa2 Rad1 c1B+ Kc2 Kc6 Rd2 Kb7 Qe5 Qg6 e8R Rb5 Re6 Qe8 Ra6 Kb8 Qe7 Rf8 Rdd1 Bf4 Rd2 Be5 Rdd1 Qa1 Bc1 Rh8 Be3 Nb2 Rd5 Qe1 Bg1 Qe3 Rf4 Qc5 Rfd4 Qh5 Rf8 Qe8 d8B Bch3 Qf7 Bc8 Be7 Bg4 Bd6 Rg8 Qe7 Bh8 Nh7 Beg7 Rf1 Rf8 Nf6 Rf7 Qe4 Re7 Qh7 Re1 Qe4 Ra1 Qe7 Rc1+
2B1rkb1/1B6/4B1r1/BBqK1N2/4pR2/Pr1b2bq/P3n1n1/1rRq1q1Q w - - 0 1 legal: proof: f4 a5 h4 g5 d4 gxh4 e4 e5 d5 exf4 e5 c6 Nd2 cxd5 Ne4 dxe4 Qh5 a4 Qd1 a3 bxa3 Ra4 Qd4 Ra5 Qd1 Ra8 Kf2 f5 c4 b5 g4 d5 g5 h5 e6 h3 e7 b4 c5 b3 c6 f3 Ke3 b2 Kd4 b1R c7 h2 g6 f2 g7 f4 Be2 f1Q Bc4 f3 Bb2 h4 Nh3 f2 Qe1 Ra6 Ke5 d4 Ng1 h3 Qe3 d3 Qc1 d2 Bd3 d1Q Bb5+ Nc6+ Kf4 Be6 c8B Nf6 g8B Nd5+ Kg5 Qa5 Qc4 Nf4 Kf6 Ng2 Bd4 Rb3 Nf3 Rb6 Rg1 h1R Qc1 h2 Bc3 Qa7 Bba6 Nd4 Ke5 Ne2 Nd4 Bf7 Be1 Rg6 Ba5 Be6 Bab7 Qc5+ Bd5 Bh6 Nf5 Bg5 Rb1 Bh4 Rb2 Bf7 Rc2 Be6 Rc3 Bf7 Rf3 Bg3+ Rf4 Be6 Bh7 Kf7 e8B+ Kf8 Bb5 Bg8 Qb1 Ne1 Be6 Qh3 Bc8 Ng2 Re1 f1B Bb7 Qd2 Rc1 Qd1 Bc8 Rg1 Be6 h1Q Bc8 Rg4 Bg6 Rg5 Bf7 Rg6 Qa1 Nc3 Qb1 Bd3 Bfe6 Ne2 Qa1 Rh7 Qb1 Re7 Qa1 Re8 Qb1 Qe3 Bdb7 Re1 Kd5 Qf1 Rc7 Qc2 Qa1 Reb1 Rc4 Qcd1 Rc1 Qa7 Qh8 Qg4 Qh2 Qh3 Qh1 Qc5+
N3q3/B2p1kbb/1qR5/Pb2r1Q1/2qR1nrr/4NP2/RK1rR3/3R1nq1 w - - 0 1 legal: proof: d4 f5 b4 a5 d5 axb4 d6 f4 Nh3 f3 exf3 cxd6 Ng1 d5 Bd2 d4 Be3 Nf6 Bc1 Ng8 Ba6 g5 Bf1 g4 Ba6 h5 Bf1 g3 Kd2 gxf2 g4 Qb6 g5 Qa5 Bh3 Qd8 Bg4 hxg4 h4 f1Q c4 b5 Kc2 e5 a4 e4 c5 g3 a5 d3+ Kb3 e3 c6 g2 c7 d2 h5 e2 g6 e1R h6 Nc6 h7 Nf6 g7 Nd4+ Kb2 b3 g8R b4 Rg3 Nf5 Rhh3 Ne3 Rg8 Nfd5 Ra2 Nf4 Rg4 Bg7+ Nc3 Ba6 c8R Bb5 Rh2 Qc4 Nh3 g1Q Nf2 Kf7 Rc6 Qe8 Rhg2 Rg8 h8R Nf1 Rh1 Re5 Nd5 Rh8 Qc2 d1R Be3 Rd2 Nc7 Rh4 Ba7 Rd8 Nd1 Ra8 Kb1 b2 Re2 Rb8 Qc1 Rb6 Rh6 Rg6 Ne3 Rgg5 Na8 Rg6 Rgg2 Rgg4 Ra4 Qe4+ Ka2 b1B+ Kb3 Bc2+ Kb2 b3 Rd4 Qd5 Rc6 Bh7+ Ka3 b2 Qc5 b1Q Qe7+ Kg8 Qg5 Kf7 Rgf2 Rd1 Ra2 Qg6 Kb2 Qc4 Rfd2 Qf6 Rhh2 Qfd8 Rhe2 Qb6 R2d3 Rc1 Rd1 Rc2+ Kb1 Rd2+ Ka1 Rd3 Kb2 Rd2+
2b3br/1r1P1r2/R2B1pNb/3rb1b1/4BP2/3q2b1/KnqN4/Q1BBk1B1 w - - 0 1 legal: proof: e4 d5 c4 dxe4 b4 f6 g4 a6 b5 axb5 g5 bxc4 g6 c3 a3 h5 Ba6 Kd7 Bf1 Nc6 Ne2 Ne5 Ng1 Nf7 gxf7 Rh7 Qf3 Rh6 Qd1 Rh8 a4 Ra5 Ne2 Rb5 Rg1 Ra5 Rg4 hxg4 Ng1 Ra6 Nh3 Qe8 Ke2 Kd6 Bg2 Kd7 Na3 Kd6 Qb3 Rb6 Bb2 Rh4 Rh1 Nh6 Ke1 Ra6 Bf1 Kd7 Nb1 Ng8 Qd1 Ra8 Bc1 Qd8 Ng1 Rh8 d4 Kc6 h4 Kd5 h5 c5 f3 g5 a5 e5 h6 b5 a6 g3 h7 b4 a7 g4 Qb3+ c4 Kd1 g2 Kc2 e3 Ne2 g1R Bb2 e4 Nc1 e2 Nd3 e1B Kc1 e3 Nc5 c2 Na3 g3 Nd7 g2 Qd3 e2 Qb3 Bg3 Rh6 e1R+ Kd2 c1B+ Kc2 Bg5 f4 Ke4 d5 c3 d6 Ke3 Rh5 Kf2 Rh4 Nh6 Be2 Rb8 a8B Rb7 Nc4 Rd1 Rh2 Rd5 Qa4 Ke1 Kb1 b3 Nd2 Nf5 Ne5 Bfh6 f8B Ne3 Ng6 Nc4 Bc1 b2 Ka2 c2 Bd1 Rh1 Be7 g1B Rh3 Rf8 h8B Rf7 Bg7 Bd4 Bgf8 Be5 Rh5 Qd7 Qa6 Qf5 d7 Qd3 Bc5 Rh2 Bfd6 Rh4 Bd4 b1B+ Ka1 Nb2 Bg1 Ba2 Qa4 Ra5 Qd4 Be6+ Qa4 Rd5 Ka2 Re7 Qa6 Bg8 Qa5 Rf7 Qc3 Nc4 Qa1 Rh1 Rh3 Nb2 Rh2 Bf8 Rg2 Rh8 Rf2 Bfh6 Rf3 Qb5 Ra3 Qd3 Ra6 Na4 Bca3 c1Q Bb2 Qc5 Bc1 Qcc2+ Qb2 Rc5 Bf3 Rb6 Bae4 Rd5 Bh5 Rb7 Bd1 Qcc3 Qb1 Nb2 Qa1 Qcc2
k4K1B/r3RnN1/bB1pPb1n/2Nq2P1/3pbN2/q2Q3q/nnN4r/7N w - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 a3 h5 Bh3 g6 g5 b5 Bg4 hxg4 a4 f3 axb5 Rh7 Ra6 Rh4 Rf6 Rh8 Rf5 gxf5 Be3 f4 Bd2 Rh3 Bc1 Rh8 Kf2 f5 e4 Na6 h4 Qb6 c4 Kd8 c5 Kc7 e5 Kb7 h5 Kb8 c6 Qb7 b6 Bg7 h6 Bf6 b5 Nb4 e6 Na2 h7 Nh6 Qd3 a5 Nh3 d6 Na3 a4 Bd2 Ra6 c7+ Ka8 Nc2 a3 Ba5 Ra7 Ra1 Bd7 c8N Qd5 Ne7 Bc6 Ng6 Bb7 Rb1 Bc6 Rb3 Bb7 Rc3 Ba6 Rc7 g3+ Kf1 g2+ Kf2 g1N Re7 Rf8 h8B Rf7 Kf1 Rh7 Nf2 Bb7 Nh1 f2 Rf7 Ba6 Re7 Nf3 Kg2 f1N Kh3 Ne5 Kh4 f3 Kh5 f2 Nf4 Nef7 Kg6 Nd2 b7+ Kb8 Qb3 f1B Qd3 Bg2 Bb6 Nc4 Re8+ Bd8 Re7 Nb2 Kf6 Bf3 Kg6 Be4 Kf6 Ng4+ Kg6 Rh2 Kg7 Ngh6 Kf8 Ra8 Bc7+ Ka7 b8N Kb7 b6 Ra7 Nd7 Ka8 Ng2 f4 Nf6 f3 Nf4 f2 Ne8 f1Q Ng7 Qg2 Bb8 Rd7 Bc7 Qh3 b7+ Ka7 b8N Ka8 Re8 Bf6 Bb6 Ra7 Re7 Nb4 Rc7 a2 Nd7 a1Q Nc5 Qa3 Re7 Na2
1b2Br2/1rkp1Q2/nNnN1P2/qP2N3/Nr6/1b3N2/q1R1Rp2/qqn2K2 w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 a4 cxd4 f3 g5 Be3 gxh4 Bf2 b5 axb5 e3 Ke2 exf2 Kd3 Qb6 Kd2 Qd8 Ke2 h5 b4 e5 g4 a5 c4 a4 g5 e4 f4 d3+ Ke3 h3 b6 h4 b5 d2 Ke2 a3 c5 e3 f5 h2 c6 a2 g6 h3 f6 Bb7 c7 Ne7 c8N Na6 g7 Bd5 g8N Nc6 b7 Ra7 b8N Bd6 Nc3 Bb3 Nh6 Rf8 Na4 Rb7 Na7 Qa5 Nf5 Kd8 Nf3 Kc7 Rc1 a1Q Nc8 Qa2 Ncb6 Bg3 Rg1 h1Q Rc2 h2 Nd6 Bf4 Qe1 d1R Qb4 Bg3 Qc4 Rd4 Qf7 Rb4 Bh3 Be5 Bg4 Bf4 Ra1 Qhb1 Bh5 h1Q Bg6 Qbb2 Re1 Qba1 Qe7 Qh7 Be8 Be5 Kf1 e2+ Kg2 Qd3 Qf7 Bg3 Rb1 Qf5 Rbb2 e1N+ Kf1 Be5 Re2 Qfb1 Rbc2 Nd3+ Re1 Nc1 Re3 Qc3 Ree2 Nd8 Nc6 Qca1 Qc4 Bf4 Nce5+ Nc6 Qf7 Be3 Nbc8 Ba7 Ncb6 Bb8
QN1b1nN1/2b3R1/nRNP1rrB/1n2pP2/1n2k3/1bqbN3/4n2p/3K1N2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Bd3 g6 Bf1 g5 b4 gxh4 b6 a6 b7 Kf7 b5 Ke8 b6 Ra7 Be2 Qd5 Bg4 Ra8 Be6 Qd8 Bd7+ Kf7 Bb5 axb5 Qe2 Ke8 Qf3 Qd5 Qd1 Qd8 g4 Kf7 d4 Ke6 f4 Kd5 g5 c5 f5 h5 g6 e5 g7 c3 Ke2 h3 Nf3 c4 Bh6 c2 Ra7 c1N+ Ke1 h4 Rf1 h2 Ng1 h1B Rf3 c3 Qa4 b4 Re3 b3 Ra6 c2 Qd7+ Bd6 Ra7 b2 Na3 b1N Ra6 h3 Ne2 h2 Rb3 e3 Nc4 Ke4 d5 Ne7 g8N Nc3 Qc7 Ng6 Ng1 e2 Qd7 Bc7 d6 Nd3+ Kd2 c1N Bg7 e1B+ Kc2 N1e2 Bh6 Nf8 Ne3 Nb5 Rb2 Nb4+ Kd1 Bh4 Qe8 Be6 Ra7 Qc8 Nf3 N8a6 b8N Bhd8 b7 Bd5 Nc6 Bb3+ Rc2 Rh7 b8N Rf7 Rb7 Rf6 Rb6 Kd3 Nd2 Be4 Ndf1 Rg6 Nce7 Kd4 Qc6 Bd3 Qb7 Ra7 Nec6+ Ke4 Qa8 Qe6 Ng4 Qc4 Nge3 Qc3 Rb7 Ba5 Rh7 Rf7 Rg7 Bbc4 Rb2 Rff6 Rb3 Bac7 Ra3 Nc5 Ra6 Be6 Rb6 Nca6 Bf4 Bf7 Bh6 Bb3+
kB3RR1/1R2R2p/5K1b/bPbRrpq1/8/3nB3/br1b1rP1/r1Q3Nn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 f5 e6 f6 Bb7 Rh3 Ba6 Rh1 Bc8 e4 Qd4 e5 Qd6 Bd3 Qd8 Bf5 Kd7 Nc3 Qe8 Nce2 Qd8 Nd4 exf5 e6+ Ke8 e7 Kd7 Ne6 fxe6 Kf2 a5 Ke3 c5 Kf4 Kc7 Ke5 Kb7 e8R c3 b4 c2 d4 h3 f7 c4 d5 h2 b6 c3 d6 a4 d7 a3 b5 a2 Qe2 Qg5 d8R Nf6 Rd3 Ne4 Rd6 Nf2 Rd5 Bc5 f8R Na6 Bd2 c1B Rg8 c2 Nh3 Nb4 Rf1 h1R Be1 Bd2 Ref8 c1B Rb1 a1R Qd1 R8a2 Rb2 Ka8 Rb3 Rb2 Ng1 Rh4 Nh3 Rf4 Rf7 Nh1 Rgf8 Rf2 Rb7 Rg8 Rg3 Rg7 Rg4 Re7 Ng1 Re8 Re7 Bb7 Rdd7 Bd5 Rb7 Ba2 Rg3 Qg8 Rg4 Nd3+ Kf6 e5 Rg6 Bh6 Bd2 e4 Be3 Bd2 Qc1 Ba5 Rd1 Bd2 Bf4 e3 Rgg7 e2 Be3 e1B Rg5 Qc4 Rgg8 Ba5 Rd2 Qg4 Rd1 Nf4 Rd5 Bed2 Rbd7 Nd3 b7+ Ka7 b8B+ Ka8 Rb7 Qh5 Ref7 Re5 Rfe7 Qg5+
4NBnB/1Q1P1rR1/1Bb1krK1/pp1n4/2bn3b/R1P1b1B1/8/r3q1rB w - - 0 1 legal: proof: e4 d5 b4 g5 a4 f5 exf5 c6 h4 gxh4 b5 d4 c3 d3 Qc2 dxc2 a5 b6 Na3 bxa5 b6 a4 Nb5 cxb5 Ke2 Kd7 Kf3 e5 Ke4 a5 d4 h5 f4 a3 g4 a2 g5 h3 g6 h4 d5 h2 g7 h3 f6 Qe8 Kf5 e4 b7 e3 d6 e2 f7 e1R Be3 c1B Bb6 Re3 Kg6 Nc6 b8B Ke6 Ne2 Be7 Rg1 h1N Ng3 h2 Bg2 Nf2 Nf5 Rf3 Bh1 Nd1 d7 Nd4 Rg2 Be3 Nd6 Bb7 Rg5 Rh7 f5+ Ke5 f6+ Ke6 Rg1 Bc6 Rg5 Bd8 B8c7 Qe7 f8B Bd5 f7 Bc4 Rg1 Qe8 Rg4 Bh4 Rg3 Qe7 Ne8 Ra6 Rg4 Rf1 Bg3 Rg1 Rg5 Qa3 Bfd6 Qc1 f8B Qd2 Bde5 Qe1 Rb1 a1R Rb3 Nh6 g8Q+ Rf7 Qh8 Ng8 Qh5 Rg2 Ra3 Rg1 Bf3 h1B Bh8 Bg2 Ba8 Bh1 Qf3 Bg2 Qb7 Bc6 Rh5 Bc1 Rh6 Ne3 Rh7 Nd5 Rg7 Be3 Qb8 Bb7 Nd6 Nc7 Ba7 Rb6 Ne8 Kd5+ Kh7 Rg6 Bb6 Ke6 Qa7 Bbd5 Bc6 Bf3 Qb7 Rgf6 Be4 Bg4 Bh1 Bf3 Rb3 Bc6 Ra3 Rf2 Kg6 Nd5 Ba7 R2f5 Bb6 R5f6+
2R2q2/3b2Rq/3k1npB/1R1B1r1R/rrR2n2/P3PpnK/1r1bN3/3n1Q2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Nc3 exf6 Ne4 f5 Ng3 f4 Ba3 fxg3 Bb2 Ra4 Bc1 Ra8 d4 Kd7 h4 c5 d6 f5 d5 b5 a3 g6 e3 c4 h5 f4 h6 b3 h7 b4 Ne2 g1N Qd3 f3 Qd1 b2 Rb1 c3 Rh3 c2 Bd2 c1N Nd4 g2 Kf2 b3 Kg3 Na2 Bd3 Ne2+ Kh2 Nac3 Nc6 Nf6 Qf1 Nh5 Be4 Nhf4 Nd4 Nd1 Bb4 Ng3 Rh4 Ra4 Ne2 Bg7 Rh5 Rf8 h8R Rf5 Rg8 Bc3 Rg7+ Qe7 Rc1 Bd2 Rc4 b1R Bc3 g1R Bf6 b2 Bg5 Qf7 Bh6 Rb4 Rg8 Qf8 Rg7+ Ke8 d7+ Kd8 Rg8 Ke7 d8R Nd7 Rg7+ Kd6 Re8 Nf6 Re5 Nd3 Kh3 Bd7 Re8 Rg2 Rec8 Rc1 Rb8 b1Q Rb5 Nf4+ Kh4 Ke5 d6+ Ke6 Bd5+ Ke5 Rcc5 Rcc4 Rc6 Ra4 Rc7 Rcb4 Rc4 Bc8 d7 Kd6 d8R+ Bd7 Ra8 Qe4 Rac8 Qee7 Rg8 Qh7 Rg7 Bc3 Nc1 Rgb2 Ne2 Nfe4 Kg4 Be1 Kh4 Bd2 Kg4 Nf6+ Kh4 Ng2+ Kh3 Nf4+
2b2q1r/3k1N1P/3pbbb1/2R1rb2/R2K4/N2RRqp1/bBQ2Pr1/3R3n w - - 0 1 illegal: No proof kernel
q4q2/Qb1P2b1/1p2p2B/BB1n1R2/5qqq/PB1b3N/4R1r1/1knqB2K w - - 0 1 legal: proof: c4 d5 e4 dxc4 h4 f5 d4 a5 b4 axb4 e5 g5 d5 gxh4 Nc3 Ra6 Ne4 Rd6 exd6 fxe4 g4 Kf7 f4 Kf6 Kf2 c5 Kg2 h5 a3 e6 d7 b3 f5 Ke5 d6 e3 g5 Ke4 g6 h3+ Kh2 c3 g7 c2 f6 b2 f7 b1B Bc4 b6 Nf3 e2 Ba2 e1Q Rf1 c4 Be3 c1Q Qa4 Kd3 Nd2 h4 Qa7 Kc2 Kg1 h2+ Kh1 c3 Nf3 Nf6 Kg2 Qe2+ Bf2 Na6 Bc4 Nb4 g8B Nd3 Ng5 Bg7 Bb5 Qf8 d8B h3+ Kg3 h1Q d7 h2 Bh7 Qa8 Be7 h1Q Bb4 Nd5 Ba5 Bb7 Be1 Qcd1 Ra2+ Kc1 Be4 c2 Rf5 Rh6 Rb2 Rg6 Ra2 Qeh5 Rb2 Q1h4+ Kg2 Ba2 Kg1 Bc4 Ra2 Kb1 Bg2 c1Q Re2 Nc7 Nh3 Qcf4 Kh1 Nc1 Bf3 Rg2 Bd5 Bd3 Bb3 Qfd8 Ree5 Nd5 Re2 Q5g4 f8B Bc3 Bg7 Qf8 Bh6 Bg7
q1B2Bb1/b3r1NB/2p1QK2/2qBN2B/1nqk2P1/5p2/2Pb1n1b/q1n1R3 w - - 0 1 illegal: No proof kernel
1nBrrq1N/B1pP1p2/2b2n2/N3QB2/R1KbP1b1/2p1rq2/B7/3q1kB1 w - - 0 1 legal: proof: f4 g5 a4 gxf4 c4 h5 b4 d5 b5 dxc4 b6 e5 Qc2 e4 Ra3 axb6 Rg3 b5 Rf3 exf3 Qf5 b4 Qxh5 Qf6 Qh7 Qd8 e4 Ke7 g4 Kf6 d4 Kg5 Kd2 b5 h4+ Kf6 h5 Kg5 d5 c3+ Kd3 f2 a5 b3 d6 b4 h6 b2 d7 b3 a6 Qe7 a7 Qd6+ Kc4 Qb6 Ne2 Qd6 Qg7+ Qg6 h7 Nf6 Nd2 f3 Nf4 b1R Ba3 b2 Bc5 Bb7 Nb3 Rg8 h8B Re1 Na5 b1Q Bh3 Kh4 g5 Kg3 Be6 Qh6 Ng6 Kg2 Be3 Nh7 Qe5 Nf6 Bg7 Qa1 Nh8 Qd1 g6 Bc5 Bf8 Bb6 g7 Bd4 Bc5 Rd8 g8B Qf8 Bh7 Bc6 Bhf5 Re2 Rh6 f1Q Bg1 Qf2 Rh2+ Kf1 Rg2 Qe3 Bb6 Re1 Ra2 f2 Ra4 Qef3 Bc5 Re3 Bd5 Na6 Bde6 Rac8 a8B Nb8 Bb7 Re8 Ba7 Rcd8 Ng6 Ke2 Ba6 f1B Nh8 Bh3 Bb7 Bg4 Bc8 Ba8 Kb5 Bb7 Ba2 Bc6+ Kc4 Kf1
rRr5/k3qp1P/2Qp4/2RKNB2/b1rR2N1/nn1b2p1/4P1Rb/1n1r1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 g5 Kd3 a5 Ke4 g2 h4 g3 c4 d3 b4 d2 b6 a4 h5 a3 b5 g4 h6 a2 b7 Nf6+ Kd4 Nd5 b6 Na6 b8R Nab4 h7 Ba6 c5 Nc3 b7 Bd6 c6 Bd3 Qc2 d1B Nd2 Nb1 Qb3 Nc2+ Kd5 Nca3 Nh3 g1R c7 g2 c8R Bh2 Nf3 d6 Qc3 Kd7 Nf2 Qe7 Rc5 Ba4 Rg8 Rc8 Rg6 Ra8 b8R Rc8 Ne5+ Kd8 Nc6+ Kc7 Qc1 Nd2 Rab1 a1N R1b4 Nab3 Rd4 Ndb1 Qc4 Ra6 Ne5+ Rc6 Ra8 Kb7 Rb8+ Ka7 Qb5 Rb6 Qc6 Rb4 Rf6 Rc4 Rff4 Bg3 Rh2 Rh1 Rf3 g1R Bh3 Rd1 Rg2 Bh2 Rf6 g3 Bf5 Rhf1 Nfg4 Rf3 Bd7 Re3 Rf1 Rf3 Be6 Rf5 Bd7 Rg5 Bf5 Rgg8 Rbb5 Ra8 Rb8 Rc8
b2R4/2p2k2/2p2bnB/q1PK1Pr1/BBp2rrq/1r3B2/1RQn2r1/1B1N4 w - - 0 1 illegal: No possible last move, all moves rejected
5K2/4p3/1nb1qk2/2q2BrR/RRnpnnbR/p3RQPP/3b2N1/B3n3 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 f5 d5 f6 d3 Ra2 d4 Ra1 gxf6 Bh6 f5 Bc1 f4 g3 a5 Nd2 h5 Nc4 h4 Ne3 h3 Ng2 hxg2 Be3 Rh5 Bc1 Rd5 exd5 Ra6 Kd2 Rh6 Ke1 Rh8 Kf2 f5 Kf3 Kf7 b4 a3 c4 a4 d6 d2 b5 a2 c5 a3 c6 Nd7 c7 Kf6 b6 Rh5 b7 Bh6 b8R Rg5 h3 Nb6 Bb2 Qd7 Rc1 a1N Rc4 Nc2 Ra4 Qe6 Ne2 Bd7 c8R g1Q Rc5 Bc6+ Rd5 Qh2 d7 Qg1 Qc1 d1B d8R Qh2 Bg2 Qg1 Qd2 Qe1 Qe3 Qa5 Re1 Qc5 Kf2 f3 Nf4 Be2 Ba1 Bd1 Bf1 Be2 Ng2 f4 Qb3 Bd1 Re4 Ne1 Bd3 Be2 Re3 Bd1 Kf1 f2 Bf5 Bg4 Qd1 Qd7 Qf3 Qe6 Ke2 f1N Rde5 Nd2 R5e4 Ndc4 Rd5 Kg7 Rb7 Nf6 Kf2 Nh5 Ke2 Nc2 Kd3 Kf6 Rde5 Nd5 Rbb4 Ndb6 Qd1 f3 Rd5 f2 Qf3 f1N Rf4 Ng7 Rde5 Bh5 Rh4 Bg4 Rd5 Qd7 Ke4 Nfd2+ Kf4 Ne4 Re5 Ne1 Rd5 Ncd2 Re5 Kf7 Rd5 Nh5+ Ke5 Qc8 Qd1 Qa6 Qf3 Kg7 Ke6 Ndc4 Re5 Na8 Qf1 Bb7+ Kd7 Rg6 Ke8 Qab6 Qf3 Qe6 Reb3 Bd2 Re3 Kf6 Kf8 Bc6 Rd5 Rg7 Bg6+ Nf4 Rdh5 Nab6 Bf5 Rg5
2qNRrb1/1pp2nB1/4qb2/BBq1q1rQ/2p3P1/kBB3P1/8/K1b3Nq w - - 0 1 illegal: No proof kernel
4n3/4Qq2/Pb1Br1B1/N1P2r2/B3k1r1/2nppqr1/RK2B1qp/Rn4B1 w - - 0 1 legal: proof: f4 g5 g4 f5 d4 c5 e4 cxd4 Nc3 b6 Nce2 fxe4 f5 Ba6 Nf4 gxf4 b4 Be2 g5 a5 h3 Bg4 hxg4 axb4 Kd2 Kf7 a4 d5 c4 h5 Kc2 e5 g6+ Kf6 a5 f3 g7 f2 a6 d3+ Kb1 e3 Nh3 e2 Qe1 h4 Ra2 d2 Rb2 d1Q Rc2 b3 Nf4 b2 Qc3 e1R Qe3 h3 Qd2 b5 Rh2 d4 Bg2 f1Q Qf2 d3 Qe2 e4 g5+ Ke5 g6 b4 f6 Qd5 f7 Ne7 g8B Rh5 g7 Rf5 Qe3 Qdf3 Ne6 Nd7 Rh1 h2 Bh7 Nf6 g8B Ne8 Bg6 Ra7 Ka2 b1R Nc5 b3+ Ka3 b2 Nb7 Bg7 f8B Qf7 Na5 Nd5 c5 Bf6 Rg1 Nc3 Bd6+ Kd5 Bh3 Bd8 Bg4 Bb6 Rf2 Q3g2 Be2 Re7 Qg5 Re6 Be3 Qf3 Rh1 Q1g2 Qe7 Rg1 Bd4 Ra1+ Kb3 b1N Kb2 Ra4 Be3 Qgh3 Bd4 Rg3 Re1 Na3 Ra1 Nab1 Rg2 Rc4 Bg1 e3 Rf2 Rcg4 Rg2 Ke4 Rf2 Qf8 B8f7 Ng7 Be8 Qhg2 Ba4 Qf7 Ra2 Kd4 Rf1 Ke4 Rc1 Ne8 Rd1 Na3 Rda1 Nab1
r1RQ4/nr6/BppR4/N4n2/4b2r/PrR1qqPn/1pKn2k1/4R1NR w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 g5 g3 gxf4 b5 e5 b6 axb6 Ba3 b5 Be7 b4 Bc5 Be7 g4 Bh4+ Bf2 Bg3 hxg3 e4 Qb3 e3 Kd1 exf2 Kc1 Qd7 Qd1 Qd8 d4 Ke7 e4 Kd6 a3 h5 d5 Ke5 d6 f5 d7 b6 g5 f3 g6 c3 g7 f4 Qe1 h4 Qe3 b3 Qe1 b2+ Kd1 h3 Nd2 h2 Bb5 f1N Bd3 f2 Kc2 f3 Qd1 Bb7 Nh3 Qe8 d8R Nc6 Bb5 Na7 Ng5 Ne7 g8R Nf5 Nh7 Bd5 Rg1 h1N Kd3 c6 Rd6 c2 Rb1 c1R Ng5 Rh4 Nb3 Nd2 Na5 f1R Ba6 f2 Nh3 Re1 Rg2 f1Q+ Re2 Qg2 Re3 Qf3 Ng1 Rc5 Rc1 Rb5 Kc2 Rb3 Rc3 Nf2 Rh8 Kd4 e5 Ke4 e6 Nh3 e7 Re3 Ra1 Rd3 Rh5 Ke3 Rhh6 Kf2 Rhe6 Rdd4 Re1 Kg2 Rc1 Rh7 Rb1 Rdh4 Rc1 Qd8 e8R Qe7 Rh8 Qee3 Rc8 Nf1 Qd4 Nd2 Qh8 Rd7 Qd8 Rb7 Ne2 Ng5 Rh1 Nh3 Ng1 Qff2 Ra1 Qff3 Re1 Be4+
Kn3r1b/5n2/1kp4N/RpRrBq2/3b1bpP/2NNn1bN/P6p/6QN w - - 0 1 illegal: No proof kernel
1NN4b/N1n5/R1pB1P2/r2rb1pP/4K1p1/2qp1b2/NN1r3n/4QBkr w - - 0 1 legal: proof: e4 f5 a4 fxe4 g4 b5 axb5 h5 Ra3 hxg4 Ra5 Rh3 Ra1 Rh8 c4 c5 d4 cxd4 c5 Rh5 Bd2 Rh4 Bc1 Rh8 b4 Bb7 c6 Qc7 Ra6 Qd8 c7 Bc8 Rc6 dxc6 Kd2 Kf7 f4 Ke6 h4 Kf5 b6 a5 b5 d3 Ke3 a4 h5 a3 b7 a2 b6 a1B Na3 Ra5 Nb1 Qd4+ Kd2 e3+ Ke1 Ke4 f5 e2 Kd2 e1R f6 Na6 b8N Nh6 Bb2 Re2+ Kc1 Ke3 b7 Kf2 Ba3 Rd2 Nf3 e6 Nd7 Qc3+ Qc2 g6 b8N Bg7 Nc5 Rd8 Nd4 Bh8 Nb5 Rd5 Na4 Bd7 c8N Nc7 Rh2+ Kg1 Bd6 Qb4 N1a3 Be5 Nb1 Qc3 Nb2 Nf5 Nba7 Ng3 Bh3 Nf1 Rf2 Nh2 Bf1 g5 Rf4 Be8 Ra4 Bg6 Ra3 Be4 Ra2 Qc5 Nc3 Bf3 Ra3 Qd4 Na2 Qc3 Ra4 Bd4 Ra3 e5 Ra4 e4 Ra3 Qb3 Qd1 e3 Qe1 Be5 Ra4 Rf2 Ra3 e2 Kd2 Qc3+ Ke3 Rg2 Rb3 Rf2 Rb6 Rg2 Ra6 Rf2 Qd1 e1R+ Qe2 Ra1 Qe1 Rd2 Qh4 Qb4 Bh3 Kh1 Qg3 Rg1 Bf1 Qc3 Qe1 Bd1 Be2 Kg2 Ke4 Rh1 Bf1+ Kg1 Nb5 Be2 Nba7 Bf3+
2N4K/2p4b/p1p1n2r/1r1QP2q/Br1R1p2/2qPR1q1/3p4/bkNRR1R1 w - - 0 1 legal: proof: f4 g5 a4 e5 c4 e4 h4 gxh4 f5 e3 d3 Na6 c5 Nh6 c6 Ng8 Bd2 exd2+ Kf2 dxc6 e4 b5 e5 Nc5 Ke2 Ne6 fxe6 bxa4 Kf3 Ke7 Kg4 h5+ Kf5 h3 b4 a6 g4 a3 g5 h2 b5 h4 b6 h3 b7 a2 b8R Nh6+ Ke4 Nf5 g6 Rh6 g7 Nd4 Rb4 Rb8 g8R Rb5 Qb3 f5+ Kf4 Qd5 Kg5 f4 Ne2 Qf3 Nbc3 Qe3 Rc1 a1Q Ne4 Qc3 Re1 Qf2 Rg1 h1Q Nc1 h2 Be2 Qg3+ Bg4 Qhf3 Qd5 h1R Rb1 Bd7 Ra1 Be8 Nd6 Bg6 Re3 Bh7 Rd1 Re1 Rg6 Qh1 Rf3 Re4 Re3 Nb3 Kf5 Nc5 Be2 Reb4 Nc8+ Ke8 Kf6 Qh5 e7 Ne6 Nd6+ Kd7 e8R Be7+ Kf7 Bh4 Re1 Be7 Bd1 Bf8 Nc8+ Bd6 Qc4 Bc5 Ba4 Bd4 Rb1 Qa3 Rg8 Ba1 Qe4 Qc3 Qg2 Nd4 Kg7 Ne6+ Kh8 Ng5 R6g7+ Ke6 Rf3 Kd5 Rfe3+ Kc5 Rd7 Ne6 Qh1 Qgh2 Rgg1 Qg3 Rg7 Kd4 Rg8 Qc5 Rd8+ Kc3 Rd4 Qc4 Qd5 Qc5 Nb3 Kc2 Rbd1 Qc3 Nc1+ Kb1
3b1R2/K3p2p/1rN2bRr/2R1p3/1N1p1RP1/1Q1r3k/2BPp1R1/2nbrq2 w - - 0 1 illegal: No proof kernel
3bB3/7p/1RN1q2R/1b2K2P/RqPRb1b1/b1Qr1N2/nr1bn2r/1kqR4 w - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Bd2 e4 Bf4 gxf4 Kf2 Kf7 g4 Kf6 h4 Ke5 a4 b5 c3 d5 g5 f3 Kg3 d3 h5 e3 g6 Ke4 f6 e5 g7 e2 a5 e1B+ Kh2 f2 Kg3 b3 f7 d4 a6 b4 a7 d2 Nf3 b2 Qc2+ d3 Qa4 d1R Nh2 d2 Qa5 b3 Qa2 Bg4 Nf3 Qe8 Bh3 Kd3 Qa4 Kc2 Qb5 f1B+ Kh2 e4 Ng1 e3 Qe2 Qe6 Ra3 Nh6 g8R Nc6 Qg2 e2 Qf2 Nf5 Ra4 Ng3 Qf6 Ba3 f8R Nb4 Rb8 Na2 Nf3 Bf2 Rg6 e1B Rg1 Bb5 c4 Ne2 Rh6 Bb6 Nc3 b1B Nd5 b2 Ne7 Bd8 Nc6 Rf8 Rb7 Rb8 a8R Kc1 Qh8 Be4 Qc3+ Kb1 Rb6 Rf5 R8a5 Rd5 Ra7 Rd3 Rd7 Rc1 Rh1 d1Q Rd4 Rc2 Bg2 Qc1 Rf1 Bd2 Rd1 Ng1 Kg3 Ka1 Qb3 b1Q Qc3+ Qbb2 Bh1 Kb1 Bg2 B2g5 Bh3 Rh2 Bg2 Bd2 Bh1 Re3 Kf4 Qb4 Bg2 Qg6 Ke5 Ne2 Bf1 Rd3 Bh3 Bc8 Bd7 Qg8 Be8 Bg4 Raa6 Qb3 Bf7 Ba4 Rb7 Qg6 Rba7 Rb4 Rb7 Bb5 Rbb6 Qa4 Ra7 Rb2 Be8 Qb4 Ra4 Qe6+
b7/k1b1P2p/2bNN2P/1nK1N1q1/r2N4/Bb3Q1r/R2r1R1n/1brNn1b1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 e5 g6 e4 Bd3 exd3 Nc3 fxg6 Nb1 g5 Qe2 g4 Qd2 Be7 Qd1 Bf8 Kd2 d5 h4 Kd7 f4 Kc6 c4 Kb6 a4 g5 h5 b3 a5+ Ka7 h6 b5 f5 b4 c5 b2 f6 b3 a6 g3 e4 g2 c6 g4 e5 g3 e6 Bd6 f7 Qg5+ Ke1 d2+ Ke2 d3+ Kf3 d4 Ke4 Bb7 f8N Nf6+ Kf3 Rg8 e7 Bc7 Nc3 b1R Ra2 b2 Qf1 d1R Bf4 d2 Rh2 d3 Ke3 Rbc1 Kd4 b1B Nge2 g1N Qf3 g2 Ra3 Ng4 Qd5 Nf3+ Kc5 g1B+ Nd4 Ne1 Rf2 Nh2 Ng6 Rf8 Bd6 Rf3 Ra2 Rh3 Ne2 Bd8 c7 Nc6 Qf5 Nd4 Ne5 Nb5 Nd4 Bc6 Qe4 Rc2 Qf3 Rdc1 Kc4 d1B Ba3 Rd2 Kc5 Bb3 c8N+ Kb8 Nd6 Bc7 Kb4 Ka7 Nd1 Rdc2 Nd7 d2 Ne5 Kb6 a7 Ka6 Nc3 d1B Kc5 Bbd5 Nec4 Rd2 Ne5 Rc8 a8N Ka7 Qf6 Rf8 Qf3 Bdc2 Nd1 Rf4 Nb3 Ra4 Nd4 Bd8 Nc7 Bcb3+ Nc3 Ba8 Nce6 Bdb7 Bb4 Bc7 Ba3 B3c2 Nd1 Bc6 Rb2 Bb3+ Rc2 Nc3 Ra2 Nb5+
7R/rB1K2rr/1kPB1q1p/1q2N3/B1nNQb1P/n1q4B/2B1r2n/1n1b1q2 w - - 0 1 illegal: No possible last move, all moves rejected
b2nbbr1/2pBrB2/2QRB1P1/Bq3r1N/rq5B/1RPnk3/5qq1/1K3b2 w - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 d4 axb4 Nd2 e5 Ne4 exd4 g5 h6 Nf2 h5 Ng4 hxg4 Kd2 Ke7 a4 Kd6 h4 Kd5 g6 Ke4 h5 b5 h6 d5 h7 f5 c3 f3 Kc2 f4 a5 f2 e3 f3 a6 g3 a7 g2 Bb2 d3+ Kc1 d4 Ra6 d2+ Kb1 d3 Ra3 b3 Rh3 b4 Qc2 d1R+ Qc1 d2 Ra1 Na6 Be2 f1B Rh1 f2 Bg4 Bb7 Nf3 g1Q Be6 Qh4 Ne1 Ne7 Ra3 Qg2 Nd3 Rg8 h8B Re1 Nf4 d1B Bf6 Nc5 Nh5 Nd3 Ra6 Bde2 Rd6 Nc6 Ba3 b2 Bd8 Qhh2 Bh4 Nd8 Bd7 Kf3 e4 Qf4 Qd1 Ke3 e5 Bc6 e6 Bef3 e7 Qf6 Bh3 Be8 Bd7 Re2 Qa4 Qf5 Qc6 Qb5 Ka2 b1R+ Bb2 Ree1 Ba3 Rb3 Rh2 Re2+ Ka1 Rbb2 Be6 b3 Bb4 Rbc2 Ba5 b2+ Ka2 b1Q+ Ka3 Bd7 e8B Rcd2 B8f7 Be8 Rh1 Rb2 Rg1 Rb4 Bd7 Rf4 Bde6 Re1 Rh1 Q1b4+ Ka2 Rf5 Rg1 Rc8 a8B Be4 Bb7 Ra8 Bbc8 Bf3 Bcd7 Ra7 Qa6 Ba8 Qb7 Be2 Qa6 f1Q Qc6 Qff3 Rf1 Ra6 Rf2 Bf1 Rb2 Re2 Kb1 Qff2 Rb3 Ra7 Rd4 Ra6 Bb6 Ra4 Ba5 Kd2 Rd5 Ree5 Rd6 Ke3 Bc4 Re7 Bcd5 Nf4 B5e6 Nd3
2q5/2Bp3K/1r1P1nB1/5r1B/1B2r1r1/p2NrP2/2QrkBNR/1nb1br1b w - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 a4 bxa4 e5 hxg4 b5 f6 Ra3 fxe5 Rb3 e4 Rb4 cxb4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 Kg6 e5 h4 a5 c4 b3 c5 a3 d3 g3 c6 a4 b6 e3 h5 a2 c7 a1R h6 b2 h7 e4 b7 e2 Bf4 e1R Bg5 g2 Rh5 e3 Qd2 a3 Be2 Na6 b8B Ra2 Be7 Bb7 c8B Nf6 Rf5 Nb4 Qc2 Ra5 Nc3 b1R Rg5 Rf5 Qb3 Rd2 Na4 Nbd5 Rh5 Nc3 Qc2 Rb6 Nc5 Nb1 Nh3 g1R+ Bg4 e2 Bc7 Rh1 Nf4 Rhf1 Rh2 Bh1 f3 Ke3 Bb7 Qc8 d4 Rg8 d5 Rh8 Kf7 g5 Kg6 Bh6 Ncd3 Re8 Bb4 Re4 Bh5 g4 h8B g3 d6 g2 Bd5 Bg5 Bf7 g1R Kg7 Rg4 Be8 Red1 Beg6 e1B Ng2+ Ke2 Rh4 Ng8 Kh7 Re3 Bd4 Nf6+ Kg7 Rc1 Rh2 Ree4 Bf2 Re3 Qb2 Rcc4 Qb3 Rce4 Qc2 Bh4 Kh6 Bg3 Kg7 Be5 Kh6 Bb2 Kg7 Bc1 Kh6 Ne8 Kh7 Nf6+
1r2b3/n5Bp/Bn3qPP/N7/1N1RK1n1/1br3b1/2nN1Nkp/N1Q1qq1r w - - 0 1 legal: proof: b4 c5 h4 e5 d4 cxd4 f4 exf4 a4 g5 h5 a5 Ra3 axb4 Rah3 Bh6 R3h2 Bf8 Rh4 gxh4 Kf2 Ke7 Kf3 Ke6 g4 Ke5 c4 f5 e4 d5 g5 b5 c5 d3 c6 d4 h6 h3 c7 b3 g6 d2 a5 b2 a6 b4 a7 h2 Ba6 d3 Qe1 d1N Bc4 b3 Qd2 Bd6 Qe2 d2 Qf1 Nf6 Ba6 Nfd7 Qd3 Ne3 Qc2 d1B+ Be2 Nb6 Na3 b1N Qc6 b2 Nc2 Na3 Na1 b1Q Nh3 Bd7 c8N Ng4 Ne7 Re8 Qc7 Nc6 Nd5 Rc8 Nb4 Bb3 Ba6 Kd4 e5 Qe7 Qd8 Nc2 e6 Rc7 Qa8 Rb8 Rd1+ Ke5 Bd2 Qh4 e7 Kd4 Kg2 Ke4 e8N Qb2 Bc3 f3+ Kh1 f4 Bg7 f2 Kg2 f1R Nf6+ Ke3 Ne4 Qbf6 Rd4 Be8 Nd2 Rb1 Bb7 Ke2 Ba6+ Ke1 Kf3 Qf2+ Ke4 f3 Kd3 Q2h4 Nf4 f2 Nh3 Na5 Qf3 Rc3+ Ke4 Nc6 Qg2 Qg3 Qh1+ Qg1 Bb7 Bg3 Ba6 Nd7 a8N Na7 Nb6 Rd1 Nbc4 Nb6 Na5 Rb1 Ndc4 Kf1 Qf3 Rc1 Qf4 Kg2 Qe3 Qd1 Qf4 Qd2 Qe3 Rf1 Qe1 Qc1 Nd2 Rh1 Qd1 f1Q Nf2 Qa3 Qb1 Qac1 Qb2 Qcd1 Qc1 Qde1+
1KrB3R/5Rpr/k1BB1NP1/2Q1n1r1/2nqr1B1/4qp1b/1bP5/1qnB2b1 w - - 0 1 illegal: No proof kernel
3K4/NqB1nR1N/B2B2n1/3qn3/1Pr1rB2/b1pb3Q/1pPr1b2/1b1kq1B1 w - - 0 1 illegal: No proof kernel
3N1B1B/Kr2q2P/5p2/1brQpBr1/bq1n4/2nqkP2/nN5n/BB2b2R w - - 0 1 illegal: No possible last move, all moves rejected
2R1r3/q1Rb4/bB2P1QB/r2p3p/2bnNnBP/7r/rBB4b/2bK2kn w - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 d5 f5 d6 fxg4 Nc3 e6 Nd5 exd5 e4 Kd7 h4 Ke6 f4 c5 a4 g5 f5+ Ke5 a5 h5 f6 b5 a6 b3 a7 c3 d7 g3 f7 c2 Rh3 b2 Qe2 Kd4 e5 b1B e6 g4 Ra4+ c4 Ra2 g2 Rg3 b4 Bd2 c1R+ Qd1 c3 Bf4+ Bd3 Bh6 c2 Be2 b3 Nh3 g1R+ Bf1 b2 Bd2 b1B Ra5 Bc4 Raa3 Qe7 d8B Rh1 Bc7 Nf6 Ra6 Nc6 Bcf4 Ne4 Rb3 g3 Bc7 g2 Rf3 g1N Nf2 Ne2 Rc3 N4g3 Ne4 Bd7 Bb6+ Qc5 Ra2 Bd6 f8B Rh3 Bfh6 Nf4 Be2 Rhe8 Bg4 Nh1 Ra1 Ba6 Rc4+ Kd3 Bc3+ Ke3 Bb2 Nd4 Ra5 Qa3 Rac5 Ba2 Rc7 Ra1 Qb1 c1B Kd1 Bb3+ Qc2 Ra2 Rc8 Qa5 R4c7 Bbc4 Qb1 Rb8 a8B Qc5 Nd2 Kf2 Qg6 Kg1 Bc6 Ra8 Ne4 Ra7 Ba4 Ra8 Ba5 Qa7 Bb3 Rb8 Ba4 Rb5 Bb6 Ra5 Bb3 Ne2 Ba4 Bh2 Bc2 Nf4
1BrBb3/7b/1rp1K3/bn1N1pnq/2n5/RQPP4/B1RBB3/n1nr1b1k w - - 0 1 illegal: No proof kernel
1r5N/1bRBp1K1/1PBB1qnp/1rb4P/k6q/b1R1n2r/1Qn3Br/4n1B1 w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 Nc3 f5 Nce2 fxe4 f5 g5 Nf4 gxf4 Kf2 a5 c4 d5 h4 Kd7 b4 Kc6 g4 f3 Kg3 a3 Kf4 d3 Ke5 e3 g5 d4 f6 a4 g6 f2 c5 Kb5 g7 a2 f7 a3 c6 e2 c7 e1N Bb2 Bb7 c8B Nf6 g8B Nc6+ Ke6 Bh6 f8B Bc1 Kf7 Rb8 Qd2 Ka4 b5 Ng4 b6 Nce5+ Kg7 Ng6 Rh3 Ne3 Bg2 f1Q Bg4 Qf6+ Kh6 Qd7 Qc3 d2 Bf7 d1R Bfd5 d3 Nf3 d2 Ng5 Qc8 Nf7 Qc4 Rb1 a1N Bg7 a2 Ba3 Nac2 Bd6 Ba3 Rc1 a1B Qe5 Bd4 Bd7+ Qb5 Bdf3 Bdc5 Qb2 Qc6 Be4 Qf2 Bd4 Qg3 Ra1 Rb1 Kg7 d1R Ra2 Rd2 h5 h6 Ra1 Rhf8 Nh8 Qh4 Bd5 Rf3 Be4 Nd1 Bg1 Rb3 Rd3 Nde3 Rc3 Rb5 Bef3 Rbd1 Rc1 Rf2 Bgh3 Rh2 Bfg2 Qf3 Bc6 Rd5 Bhd7 Rg5 Rd1 Rg3 Rd5 Rgh3 Rf5 Ba6 Rf8 Qf5 Rc8 Bb7 Rc7 Qff6+
3n2r1/p3P3/1B2K3/Pp1BQBN1/1bBqB1r1/b1kbq1Nr/2bn1r1R/5n2 w - - 0 1 illegal: Other
3N2K1/1r1n3r/R1N4p/p3qr2/2P1Nb1q/R2n1N1P/QBbn1q2/r2N1kn1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 f5 b5 e3 bxa4 f6 g4 Bb5 exf6 Bd3 f5 Be2 f4 Bf3 gxf3 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kg4 c4 a5 b4 f5 b5 d3 b6 a3 b7 a2 g3 h6 e4 d2 e5 Ne7+ Kd6 Nec6+ Kd5 Rh7 e6 Ne5 e7 Ra7 e8N Bd6 Bb2 Qh4 Qb3 d1R+ Qd3 f2 Bc3 f1N Ne2 Kh3 g4+ Kg2 g5 f3 g6 f2 h3 f4 g7 f3 g8N Bc7 Kc5 d5 Qf5 d4 Kd5 d3 Nd6 d2 Qc2 Bf5 Nf7 Nbd7 b8N Rb7 Nd8 Ng3 Bd4 f1Q Ng1 f2 Nc3 Ne2 Nbc6 Rc1 Qb3 d1R Nf6 Bc2 Ke6 Nd3 Rb1 a1Q Rb2 Rh8 Kf7 Rh7+ Kg8 Qe1 Ra2 f1N Nfe4 Nd2 Ra3 Qeg3+ Bg7 Rf1 Qa2 Rf5 Nf3 Qf2 Be5 Qb2 Bg7 Ra1 Rb1 Bh2 Nd1 Kf1 Bf6 Qbd4 Rb6 Bf4 Ra6 Ng1 Be5 Qd6 Bb2 Qe5
qB1q2bk/1N1RP2q/rn1R1Rpb/4R2B/3nQ2p/2r2r2/3n1rP1/n4R1K w - - 0 1 illegal: No proof kernel
4rQbk/q1p1nrb1/3RP1br/6Bp/2rRqRN1/RnPR4/2n5/5NnK w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 d5 f5 Bd3 e6 e5 exd5 Be4 fxe4 Qe2 d4 Qg4 Qf6 Qd1 Qd8 Kf1 Kf7 f4 Kg7 g4 d5 Kg2 h5 a4 b5 g5 d3 g6 d2 a5 h3+ Kh2 b3 c3 d4 f5 d3 a6 b2 a7 b4 Ra3 e3 Ra5 e2 Qc2 d1N Ra6 e1N Nf3 b3 Ng1 d2 Ne2 Nf2 Na3 b1B Ng3 d1R Bd2 b2 Kg1 Ne7 Bf4 Nbc6 Nc4 Be6 Ne3 Rh6 f6+ Kh8 f7 Na5 Qf5 Qb8 Rd6 Rd4 Rh2 Bd5 Ngf1 Rc4 Rg2 Bc2 Rg4 b1Q Qc8 Nb3 g7+ Kh7 g8R Qb7 Qe6 Re8 a8R Qa6 R8g6 Kh8 Qf6+ Bg7 f8R+ Bg8 e6 Bf5 R6g5 Bg6 Rgd5 Qb7 Ra1 Qa7 Ra3 Qd3 Rf7 Nc2 Bg5 h2+ Kg2 Qf5 Rd3 Nh3 Rgd4 Ng1 Ng4 Qf4 Qe5 Qe3 Rf3 Qe4 Qf5 Nh3 Qf8 h1R Ng3 Rc1 Kh2 Ng1 Kh1 Qe5 Rf7 Rf1 Rf5 Rf3 Nf1 Qd5 Re5 Rf7+ Ree4 Qe5 Rf4 Qe4+
1b1nNR2/P2qb2k/BK1n3q/2nr1p1b/2r3p1/3NB3/p2N1NP1/1Nq3rQ w - - 0 1 illegal: No proof kernel
2K3q1/pN4b1/rkBqp3/2N1RNqN/PN2n2P/1Rr3pb/nn6/3bQn2 w - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 b5 b3 bxc4 Bb2 h6 Bf6 gxf4 g5 Nd7 g6 Nb8 Bg5 hxg5 Ke2 Kd7 d4 Kc6 a4 f5 h4 g4 g7 g3 d5+ Kb6 b4 c5 d6 c3 b5 f3+ Ke3 f2 Kf4 c4 Ke5 c2 d7 c1N Ke6 c3 Be2 f1B Ra3 f4 Qd2 c2 Rb3 e3 Rd3 f3 Rh2 f2 Na3 Nc6 Qe1 Na5 Nf3 Nc4 Rb3 Nb2 Nd4 Bh3+ Nf5 f1N Bf3 e2 Bc6 Nf6 g8N Ne4 Nf6 Bg7 Nh5 Na2 Rf2 c1Q Nc2 Qf8 Nb4 Qg5 Rh2 Ba6 d8N Qg8+ Kd7 Rc8 Nb7 Rh6 Rf2 Rg6 Rff3 Rh6 Rfd3 Rf6 Rd5 Re6 Re5 Rf6 Qd2 e1Q Qc3 Qee3 Qe1 Qg6 Bd5 Rc3 Bc6 Qd5+ Kc8 Qd6 Rd5 Qeh6 Re5 Qhg5 Qe3+ Qd4 Qd3 Qh7 Qd1 Rd6 Qe1 Rd5 Kb8 Qg8+ Nd8 Ka5 b6 e6 b7 Be2 Kc8 Kb6 b8N Bd1 N8a6 Ra5 Nc5 Qd5 Be8 Qd6 Nb7 Qh7 Bd7 Ra6 Bc6 Qg8+
5b1r/1p1r1n1B/bB1Bk3/2b1B1RR/1Pb2BbN/1n1q1Pn1/p1p1QK2/6n1 w - - 0 1 illegal: Other
3bBB1q/b2B3K/np6/1qr1q1BB/3pp2Q/3bn3/1R1bP2P/NNqk2r1 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 h5 d6 h4 Ra2 cxd6 Ra3 d5 Rd3 d4 Rg3 hxg3 Kd2 Kf7 Kd3 Ke6 Ke4 d5+ Kf4 d3 Kg5 Ke5 Kg6 Kd4 f4 e5 c4 e4 f5 g2 f6 d2 a5 Ke3 c5 g3 a6 b3 c6 b2 f7 Rh5 a7 Nf6 c7 Ng4 Qa4 Na6 Qa1 Be7 Nh3 g1B f8B g2 Nc3 b1Q Na4 Qb5 Ba3 d1Q Nf2 Kd2 Qb1 Ne3 Qa1 Qc1 Nd3 Kd1 Qb1 Bf2 Bb4 g1Q+ Bg2 Be1 Ndc5 Bd2 Nb3 Rf5 Kh7 g5 Bh3 g4 Na1 g3 Bg4 g2 Bh5 Qd6 Bh6 Qf6 Bg5 Bd8 Bf8 Qe1 Qb4 g1B Qe7 Bd7 c8B Qg3 Bh4 Be8 Bd7 Qge5 Bg5 Rc8 a8B Rf1 Qa3 Bf2 Qe7 Rc5 Rg1 Bf7 Rg3 Rg1 Nc3+ Ke1 Nb1 Kd1 Bgh6 d4 Rg5 b6 Bac6 Bc4 Bde8 Bg3 Bcd7 Bf4 Rf5 Bd3 Bg5 Qee6 Rd5 Bb8 Rf5 Ba7 Rd5 Rc6 Rc5 Qee5 Rc2 Rc5 Rb2 Qfd6 Qf6 Qde6 Qf2 Q6f6 Qh4 Qh8+
BnKn2rb/5p1r/4b1n1/R1p5/PN1NpPk1/b1p4N/NQqBb3/rN6 w - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 g5 h4 gxh4 a4 a5 b5 d5 Ra2 dxe4 Rb2 Ra7 Rb3 Ra8 Rb4 axb4 Ke2 Kd7 Ke3 Ke6 Kf4 h5 d4 b3 g4 e3 g5 c3 g6 h3 b6 h2 b7 h4 f3 h3 g7 b2 Ba6 e2 Bd3 e1B Bd2 Rh7 Be4 c6 Kg5 Qc7 d5+ Ke5 d6 Be6 d7 Qc8 Na3 b1B d8N Bd3 Qb1 Be2 Qb2 Bf2 Nb1 Bc5 Bg6 Ba3 Bh5 Qc7 f4+ Ke4 Bg4 Qc8 Bh5 c5 Nc6 Qd7 Nb4 Qd3 Na2 Qc2 Be1 Ke3 Bd2+ Kf2 Bf3 Kg3 Bd5 Rh4 Nf3 Rh7 Re1 h1R Ng1 h2 Nh3 Rf1 Bg2 h1N Be4 Nf6 g8N Ng4 Nf6 Nhf2 Nd5 Nd3 Ndb4 Nde5 Bh1 Nec6 Rd1 Na6 b8N Nd8 N8c6 Bg7 Nd4 Bh8 Re1 Rb8 Ba8 Ne5 Rd1 Ng6 Rc1 Bf5 Re1 e5 Rc1 Rg7 Kf6 e4 Rd1 Be6 Re1 Ne5 Ke7 Rh7 Kd6 Ng6 Rc1 Bd5 Kd7 Kg4 Rd1 Rb7+ Kc8 Nb8 Re1 Re7 Rd1 Re8 Rc1 Rg8 Re1 Rh1 Rg1+ Kh4 Rg5 Bdc4 Re5 Bd5 Re6 Kg4 Ra6 Rc1 Ra5 Rh1 Be3 Rg1 Nd2 Ra1 Nb1 Bb3 Bd2 Be6+
1b2r3/1Bk1r1rn/6q1/p5R1/B1qBn1N1/P1p1BB1b/1rp2prP/2K2QN1 w - - 0 1 legal: proof: c4 e5 f4 b5 g4 bxc4 b4 g5 d4 exd4 Nd2 gxf4 g5 h5 Rb1 Nh6 Rb3 Ng8 Rg3 Nc6 Rg2 Nb8 Rg4 hxg4 e4 a5 e5 f5 g6 d5 e6 c5 g7 f3 e7 Kd7 e8B+ Kc7 a3 g3 b5 d3 Bh5 c3 Qa4 c4 Kd1 c2+ Ke1 d4 Nh3 g2 Be8 g1R Qb3 f4 Qb2 Qg5 Qc3 Rh7 Nb1 f2+ Kd2 f3+ Nf4 Rg2 Be2 f1Q Rg1 f2 B2h5 Na6 Qa1 Nf6 g8B Rg7 Nc3 Bd6 Bd5 Bh3 Bb7 Nh7 Nd1 Nc5 Bhf3 Qg6 Ne2 Rd8 Bec6 Re8 Ne3 Bg3 Bb2 Rge7 Qe1 Ne4+ Kc1 Rg7 Ng4 Ree7 Ba1 d2+ Kb2 d1R b6+ Kd6 Ba4 Rd2 Kc1 d3 Bd4 Re8 Bd5 Bf4 b7 Kc7 Rh1 Bd6 Ng1 Re2 Qd1 Re3 Qe1 Qe2 Qf1 d2+ Kb2 d1R b8B+ Kd8 Bba7 Bb8 Bb7 Kc7 Bac5 Ra1 Ba7 Ra2+ Kc1 c3 Bac5 Rd3 Be3 Rdd7 Bcd4 Qc4 Ne2 Rg3 Rg1 Rb2 Rg2 Rdf7 Ng1 Rfe7 Nf6 Rg5 Rg3 Rge5 Rg5 Rf5 Ng4 Rf4 Bd1 Rf3 Be2 Rg3 Bf3 Rg2
2N1q3/1KN1pr1r/pn2Q3/3p1B1q/kqq1P1nN/1NBp1bb1/N2Pn3/5R2 w - - 1 2 legal: proof: g4 c5 h4 b5 a4 bxa4 b4 f6 g5 fxg5 Ra3 gxh4 Rd3 h3 Rd4 cxd4 f4 g5 Kf2 d5 Kf3 Kd7 e4 Kc6 c4 h5 c5 g4+ Kf2 h2 f5 d3 Ke3 Kb5 Kd4 a3 c6 h4 f6 a2 c7 a1Q+ Bb2 g3 f7 g2 Bc3 h3 Be2 a6 Qf1 Rh7 Bg4 Bh6 f8N Qa4 Nf3 g1N Ne6 Qe8 Bf5 Bf4 Nh4 Bg3 Qc1 Bd7 c8N Nh6 Qf1 Qb3 Nc7+ Ka4 Kc5 Qc4+ Kb6 Ne2 b5 Ng4 Kb7 Qb4 Rg1 h1Q b6 h2 Qh3 Qf3 Rf1 h1Q Rf2 Qc1 Rf1 Ne3 Qg4 Qc2 Qg6 Qh5 Qe6 Qcb3 Bf6 Q3c4 Nc3+ Ka3 Na2 Ng4 Ba1 Ba4 Bc3 Nd7 Na7 Rd8 Nc8 Bb3 Ka7 Ka4 b7 Rf7 b8N Bd1 Nc6 Nb6 Na5 Rd6 Nb3 Rc6 Qe5 Rh6 Qe6 Rhh7 Kb7 Nf4 Bd4 Bf3 Bc3 Ne2
B1nbb1bn/3Q2br/2qp1p1B/B5RP/2pB4/2qkp3/3PRr2/Nr1K3B w - - 0 1 illegal: No proof kernel
3K1k2/4bB1B/2p1Bpb1/2n1PQB1/bqN2N1r/p4Pb1/2Br1bp1/1R1n1b2 w - - 0 1 illegal: No proof kernel
QnR1rb1q/1B1RRNpK/P4bPn/1rpp2p1/k1n5/r7/2bp4/R4R1N w - - 0 1 illegal: No possible last move
b4rQ1/p1rpR1B1/1pp1r2B/3B2b1/bPNBnB2/1n1kqPn1/6Rp/7K w - - 0 1 illegal: Other
rBRNn1rN/2p5/b1nn1k2/5N2/1N1p2q1/1pPQ2pp/N1b1qbP1/1K3B2 w - - 0 2 legal: proof: d4 a5 b4 axb4 a4 f5 h4 e5 h5 exd4 Ra3 g6 Rah3 gxh5 Rg3 h4 Rg4 fxg4 Kd2 Ke7 f4 b5 e4 d5 e5 h5 a5 g3 f5 h3 e6 b3 a6 b2 a7 h4 f6+ Ke8 e7 Kf7 e8N d3 Nc3 b1Q Ng7 h2 Nf5 b4 Na2 b3 c3 Nc6 Nh3 Bc5 Nf4 Bf2 Ne6 Qe7 Nd8+ Kg6 f7 h3 f8N+ Kf6 Ng6 Ba6 Ba3 d4 Bc5 Qa1 Qb1 Qe2+ Kc1 Qg4 Rg1 h1N Bb6 Rb8 a8N Qe2 Ba7 Qg4 Nb4 Qa2 Nb6 Ra8 Bb8 Qae2 Na2 d2+ Kb2 d1B+ Qc2 Nge7 Kb1 Rg8 Nh8 Nc8 Qd3 Nd6 Nd5+ Kg5 Qf3 Ne8 Ndb4 Kf6 Qd3 Be1 Ng7 Nf2 Nf5 Ne4 Rh1 Qf2 Be2 Qff3 Rf1 Bf2 Re1 N4d6 Bf1 Ng7 Re8 Qfe4 Ndf7 Qee2 Rc8 Nge8 Nd8 Bc2+
Q1RK4/pP2N1q1/3Rpp2/1pn3p1/6b1/R1BnPkrR/b2r1b1r/3q1BR1 w - - 0 1 illegal: No proof kernel
B1q2bR1/k1P1Br1q/1pnQB3/q1pq1pp1/1n6/1p1Rr3/3B2P1/1N3bBK w - - 0 1 illegal: No proof kernel
nN2r3/3K2N1/7R/k1B1rp1B/3pPnq1/3P1q1b/BBprpp1p/1BQ1b3 w - - 0 1 illegal: No proof kernel
2nn2R1/4BB1Q/2brPq2/KB2n1qn/B5b1/3R1N2/bR1rr1kP/8 w - - 0 1 legal: proof: c4 a5 f4 d5 cxd5 e5 a4 exf4 b3 Bc5 b4 b5 axb5 axb4 Qa4 Bb6 Qd1 Ba7 b6 g5 Qb3 g4 Qf3 gxf3 bxa7 Kd7 Ra2 Ke7 Ra1 Ke8 g4 h6 Nc3 Rh7 Ne4 Rh8 g5 h5 Nf2 Nh6 Ng4 hxg4 Ra4 Ng8 Ra5 Nf6 Ra1 Ng8 e4 Kd7 d4 Kd6 Kd2 c5 g6 f5 g7 g3 Bd3 f2 Ra5 f1R Ra4 b3 Kc3 f3 Kc4 f2 Kb5 c4 Rb4 b2 Bh6 b1B Rb2 c3 Bc4 f4 Rb4 g2 Ra4 f3 Ra1 c2 Ne2 g1Q Ka4 c1N Ra3 Nd3 Bg5 Rd1 Bb5 Qf6 Ka5 Ne5 Rd3 Ne7 g8B f1B Bf7 f2 Bh4 Qgg6 Ng1 Rd8 Nf3 Bg4 Rg1 Qfg5 Rg2 Rd2 Ba4 Ba2 Bb5 Kc7 d6+ Kb7 d7 Nc8 d5 Q6f6 d6 Nbc6+ Ka4 Re8 d8R Re7 Rf8 Nd8 d7 Re6 Rg8 Rd6 Ka5 Rb8 Rg1 Bg2 Rb1 f1N Rb2 Ng3 a8B+ Kc7 Bac6 Nh5 Ba4 Rb3 Bcb5 Bh1 Rd5 Re3 Rd4 Ree2 Rd3 Ng6 e5 Bg2 e6 Ne5 Ne1 Bc6 Nf3 Rd4 Bb3 Kd6 Bc2 Kd5 Bca4 Qgf5 Bg5 Ke4 Bh4 Rd6 Bg5 Qh8 Be7 Qg5 Ka6 Nb7 d8Q Qhf6 Qd7 Nd8 Ka5 Kf4 Rd5 Ke3 Rd3+ Kf2 Qc7 Kg2 Qb7 Be8 Qe4 Bd7 Qh7 Bc6
3Q1B1r/2RRrBnb/1n5n/2q3n1/8/bpPn1kpK/BP1p4/2B2N1R w - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 gxh5 Qb6 Nh3 Qc7 Ng1 Qd8 f4 a5 a4 e5 Qd2 exf4 Qb4 axb4 Na3 bxa3 Kf2 Kf7 Kg2 Kf6 h4 Ke5 f6 Ke4 f7 g5 c3 d5 a5 b5 a6 f3+ Kh2 d3 h6 g4 h5 d4 h7 b4 h6 a2 a7 b3 Nh3 f2 Be2 f1N+ Kg2 d2 Ng1 d1N Rh4 d3 Bf4 g3 Rc1 a1N Bh5 Nh2 Nf3 Ba3 f8B Qa5 Bf7 Nd7 Kh3 Ne3 Rd1 Nf5 Rd2 Rb8 a8B+ Rb7 Rh5 Ng7 Rc5 Qb5 Rc7 Nc2 Rd1 Qd5 Bc1 Nb4 Nd2+ Kf4 Nf1+ Kf3 Rd2 Ra7 Bc6 Nb6+ Bd7 Qc5 Bf5 Ng4 B5g6 N8f6 Rd1 Bf5 Rd2 Rg8 h8Q Ne4 h7 Rb7 Be7 Re8 Bf8 Re7 Qg8 Rb8 h8R Rbe8 Rh7 Rd8 Rh2 d2 Rh1 Nd3 Qh8 Nh5 Qd4 Ra8 Qd8 Ng7 Rh5 Rb8 Bh7 Bg6 Rd5 Nh6 Rdd7 Nd6 Bhg8 Bh7 Bg6 Ndf7 Bf5 Nde5 Bb1 Nd3 Ba2 Ng5+ Kh4 Re2 Bd6 Qb5 Qf6+ Ke4 Bf7 Rh8 Bf8 Qc5 Qd8 Kf4 Ra7 Re7 Rac7 N5e6 Kh3 Ke4 Ra7 Kf3 Rac7 Ng5+
1br2BkB/n4np1/7P/N1B2Kp1/2Qq3P/1Rbp4/1rpN3q/2N1nB2 w - - 0 1 illegal: No proof kernel
2RrN3/bp1npP2/RQnp4/3k1B2/qr3p2/N7/n1P1KN2/n1Nq2R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 c5 d4 cxd4 e5 f6 Bg5 fxe5 Bd2 Na6 Bc1 Nb8 f4 g5 h3 g4 Be3 d6 Bd2 g3 Be3 Bg4 hxg4 Rh7 f5 Rh8 Bf4 exf4 a4 Kd7 a5 Kc6 f6 g2 a6 d3 h6 b3 f7 d2+ Ke2 b2 g5 Qa5 h7 Ra7 g6 Qa2 g7 Nf6 g8N Bg7 Na3 b1N Nh6 Kd5 Ng4 Nc6 Nf2 Rd8 h8R Nd7 Rg8 Raa8 a7 Bd4 Rf8 Rac8 a8N Ba7 Qc1 d1N Qe3 Nd2 Qb6 Nb3 Nc7+ Ke5 Ne8 Kd5 Nd3 Ra8 Nh3 g1Q Nc1 Rac8 Nf2 Nc3+ Kf3 Rc7 Bd3 Rcc8 Bf5 Qd1+ Ne2 Ra8 Rg1 Rac8 Nc4 Qa4 Na3 Na2 Rh8 Qdd4 Nc1 Ra8 Ke2 Rac8 Rb1 Na1 Rb4 Nce5 Rb3 Rc4 Rc3 Rb4 Rc8 Nc6 Rh3 Ke5 Rc3 Qd5 Rc5 Kd4 Ra5+ Ke5 Ra6 Qd4 Ne4 Kd5 Nf2 Qd1+
4k2b/P1r1pNB1/2N1p3/4pPR1/2K2Q2/1p2n1bn/qNN1bpR1/1b1R4 w - - 0 1 illegal: No possible last move
2NB1nB1/3rN2n/1K4n1/2r3Q1/Pn1NqP1R/1n2N1q1/1n6/2bnkqbB w - - 0 1 legal: proof: a4 a5 d4 f5 e4 fxe4 b4 axb4 Ra3 c5 Rg3 cxd4 Rg5 b6 Rg6 Ba6 Rg4 h5 f3 Be2 f4 Bf3 gxf3 hxg4 Kd2 Kf7 h4 Ke6 c4 Kf5 c5 e5 h5 g5 c6 d5 h6 b5 h7 d3 Ke3 b3 c7 d2 c8B+ Nd7 Na3 b4 Qe1 d1N+ Kd2 d4 Qf2 g3 Qg2 g4 Rh3 e3+ Kd3 e2 Kc4 e1N Kb5 e4 Rh4 d3 Be3 d2 Bc4 b2 Bd4 b1N Be3 b3 Rh1 b2 Rh3 Ra7 Rh1 Qc7 Bf7 Bh6 Qh3 g2 Be8 Ne7 Bh5 Nd3 Nc2 Ng6 Bc5 e3 Bb4 e2 Bd6 e1N Qh2 g3 Qh4 Nb4 Ne2 g1B Bb7 g2 Be7 Rc8 h8N Ndf8 Bd8 Qc3 Qg3 Rc5+ Kb6 Qe5 Bd5 Rd7 Rh4 Qe4 Ba2 Bd4 Bg8 g1Q Nf7 Bf2 Qh2 Qg3 Qg2 Bg1 Ne3+ Ke6 Nc4 Kd5 f5 Bhe3 f4 Nf3 f6 Ng5 Bf3 Ngh7 Nc3+ Kd4 Nd5 Kd3 Ne7 Kc3 Nfd6 Kd3 f7 Kc2 Qh3 Kd3 Bg2 Ke2 Qf5 Ke1 Qd5 Ndc3 Qg5 d1N Bf3 Nd2 Ndc8 Nb3 Bh1 Bc1 Ne3 b1Q Qg4 Ne6 f8N Nb2 Qh5 Ncd1 Qg5 Ned4 Ne6 Qbd3 Nc7 Ne6 Nb5 Nef8 Nd4 Qf1
1RrRK1bq/5b1b/8/1nRR2B1/QqN1nq2/4P3/nrP1q2q/2b1BkB1 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Bh3 g5 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Nc6 Be6 Nb8 Bg4 hxg4 Kf2 Ke7 h4 Kd6 b4 Ke5 h5 Ke4 h6 f5 b6 d5 b7 a5 g6 a4 e3 d3 g7 d4 b5 g3+ Ke1 g2 Kf2 a3 h7 d2 b6 a2 Ne2 d3 Qf1 d1N+ Kg1 f2+ Kh2 Kf3 Kh3 g1Q Rh2 d2 Ba3 Be6 Qe1 f1B+ Rg2 Nf6 Kh4 Qd6 Kg5 Nc3 Kg6 d1Q g8R Qh2 Rg5 Nfe4 Bc5 Na6 b8R Nc7 b7 N7b5 Rh5 Kg2 Ba3 f3 Ng3 f4 Bb4 f2 Bc5 f3 Bb6 Bfc4 Bd8 f1Q Bg5 f2 Nf5 Qde2 Rd1 a1Q Rd5 Qb4 Nd6 Na2 Qc1 Bg7 Qa3 Bb2 Rgd8 Bc1 Qa4 Ra6 Rc5 Rb6 Rd5 Rf8 h8B Bg8 Rc5 Bce6 Bc3 Re8 Be1 Qh8 Nc4 Kg1 Rd1 Rc8 Rd8 Qf4 Bh4 Qh3 Rhd5 f1B Bf6 Qh1 Bg5 Q8h2 Kg7 Bfh3 Kg6 Kf1 Kg7 Bef5 Kf8 Bfh7+ Ke8 B3f5 Ra8 Bfe6 b8B Qh6 Bc7 Q1h2 Rb8 Rb7 Ba5 Qg7 Bf2 Qh8 Bg1 Rd7 Rf5 Rd3 Rfd5 Rb3 Bh6 Rb2 Bg5 Qb3 Bc3 Qb4 Be1 Bef7+
2N4n/nBRrQbnb/2R1Pr2/1n2N1KP/2b5/6br/n3qkq1/1RN1R3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 b4 Ke6 h4 Kd5 c4+ Ke4 c5 g5 c6 a5 c7 f5 b6 d5 b5 g2 b7 g3 b6 a4 e3 a3 Qc1 f4 Ne2 Kf3 e4 g1Q e5 a2 Rh2 g4 Nbc3 d3 Qb1 g2 Qb2 d4 Re1 a1N Nc1 g3 Qc2 Qe7 N3a2 Nb3+ Kd1 d2 Qd3+ Kf2 Qf5 f3 Bc4 Ra6 Ne2 Nc1 Nb4 Nh6 Rh1 Be6 c8R Nc6 b8N Bf7 b7 Na2 Nc1 Na7 Qe4 Rf6 Be2 Nf5 Rd8 Ng7 Kc2 d1N Kd3 Ndc3 Qc6 Ncb5 Ke4 d3 Nc2 d2 Qd6 d1B Nd4 Bc2+ Bd3 Qh2 Rd7 g1N Nf5 g2 Rc7 Nh3 Nd7 g1R b8R Qg2 Rbc8 Ng5+ Kf4 Qe8 Qb4 Bd6 Be4 Rh7 h5 Qe6 Rh4 Rh1 Bb7 Rh3 Rc6 Be4 R8c7 Qc4 Rg4 Qe2 Rg3 Bc2 Kg4 Bb1 e6 Be8 Qc4 Qh2 Bc8 Nf7 Rd1 Nh8 Ne7 Ke3 Qb4 Nf5 Rgg1 f2+ Kg5 Bg3 Nd3 Qg2 Bb7 Rhf7 Rdf1 Ng7 Nc8 Bc2 N7e5 Rd7 Ra1 Bf7 Nc1 Bh7 Rh1 f1B Qf8 Qb2 Qe7 Bc4 Rb1 Kf2 Re1 Qe2
1Rn4n/PRqr1P1B/rbR4r/4Q1K1/kB2q1R1/4b1b1/q1q4b/N2B3b w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Na3 fxe4 Qg4 bxa3 Qf3 Nd7 Qd1 Nb8 Ke2 Kd7 Ke3 h5 Kf4 e5+ Kf5 c5 d4 b5 g4 h3 f4 b4 d6 Kc6+ d7 c4 a5 Kb5 a6 b3 d5 b2 d6 b1Q g5 e3+ Qc2 h2 g6 e4 g7 h4 Bd3 a2 Be2 h3 Bf1 e2 Kg6 e1B f5 e3 f6 e2 f7 c3 Qf5+ Ka4 Bd2 c2 Qe5 c1B+ Qf5 Bg3 Be3 e1B Bd3 Bb7 Ne2 Ne7+ Kf6 Nbc6 g8B Rh6+ Kg5 Na7 Nd4 Bef2 Rg1 h1Q Qe5 h2 Nc2 Nac8 Bgh7 Qe4 Bd2 h1R Be2 Bb6 Bd1 Qc7 d8R Ng6 d7 Bd6 a7 Nh8 Rg8 Re6 d8R Rhh6 Rd7 Bd5 Nd4+ Qbc2 Nb3 Bc6 Rb1 a1Q Rg6 Qaa2 Na1 Rb8 Rd8 Rb7 Rb3 Bh2 Rg4 Rf6 Qc3 Bdg3 Qe5 Nd6 Rb8 Nc8 Qf4 Rd6 Bb4 Bce3 Rb1 Qe8 Rf6 Bh1 Re6 Rd7 Rc6 Qe4 Rb3 Bbc5 Rb1 Rb6 Rb7 Ra6 Rb2 Bef2 Qe5 Bce3+ Rf4 Bf3 Rb8 Bb6 Bd2 Bh1 Rg4 Bbc5 R2b7 Bb6 Bb4 Bfe3+
NBNB4/5r1B/2R4q/2Q1rb2/Pnr1P1k1/3b2r1/1n2qqN1/Kb1Nnb2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 e4 Ke7 c4 Kf6 Kc2 g5 Kb2 b5 h4 d5 h5 d3 f5 g3 h6 d2 c5 g2 c6 g4 h7 Kg5 c7 g3 f6 d4 f7 b3 f8N d3 Qe2 b4 Rh5+ Kg4 Nc3 d1Q Re5 d2 Rd5 Na6 Kb1 b2 Nh3 g1Q Ng5 g2 Nd7 Qf8 Qc4 Ne7 Qd3 Qh6 Ra5 Qe2 Nb8 d1N Rc5 Nd5 Ra5 N5e3 Qd5 Bf5 c8N Re8 h8B Nc2 Nd7 Re5 Bf6 Ne1 Bf4 Qgh2 Qc6 g1R Qc5 Rg3 Ndb6 Qg1 Bg2 f1R Bd8 f2 Ne6 Qgh2 Ka2 b1B+ Ka1 Nb2 Nd1 b3 Rb5 Ra7 Na8 Bd3 Rb6 Rf7 Rc6 Rg1 Bf1 Nb4 Bg2 f1B Bf3+ Kh3 Bh5 Qhf2 Bg6 Kg4 Bh7 Rh1 Nf8 Rh5 Ng6 Rg5 Nh4 Rg6 Ra6 Rc6 Ng2 Rcc7 Qd6 Rc3 Rc6 Rc4 Qc5 Ree7 Bb8 Re5 Nc3 Nd1 Ra6 Nd5 Rc6 b2+ Ka2 b1B+ Ka1 Nb2 Nd1 Nb4
2nR3q/1n1Q4/1bN1bnqP/1k3rP1/1q1BB1q1/1B4rB/2N1rr2/N2b2K1 w - - 0 1 illegal: No possible last move, all moves rejected
1b1Q1qn1/1N2Prbq/RP2rR2/1Rq1rN1R/5N1n/b3bB1n/5q2/5k1K w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 a5 f3 a6 bxa6 Qd2 a5 Qd1 a4 Na3 f5 Ra2 h6 Bf4 Bb7 Nb1 Be4 Bg5 f4 Ra1 Bf5 gxf5 hxg5 Kf2 Ke7 h4 Kd6 c4 Kc5 e4 d5 b3 a5 e5 d3 h5 Kd4 b4 g4 e6 g5 b5 g3+ Ke1 Ke3 c5 d4 f6 g4 c6 g2 h6 g3 h7 a3 b6 a4 c7 a2 c8R a3 f7 Nd7 Rc1 Ne5 Qc2 d2+ Kd1 Kf2 Rh6 Ra5 Nc3 Ng6 Nd5 Nh4 Ne2 g1Q Qc7 g2 Nf6 Re5 Rab1 a1B Qc5 a2 Qc7 Ba3 e7 Qf8 Kc2 d1N Kd2 d3 Rc2 Bd4 Rb5 a1B Nd5 Qh1 Re6 g1B Rb3 Bh2 Bg2 Qg1 Bh1 Kf1 Ra2 f2 Rf6 f3 Qd8 Re6 Rb4 Bb8 Rb5 Qg5+ Ndf4 Qc5 Rg6 Bg7 Rf6 Bd4 Ng3+ Kg1 Rab2 f1Q Ra2 Nf2 Nf5 Nh3 Ra1 f2 Bf3 Qb1 Ra2 f1Q Ra1 Qe8 f8N Kf2 Nd7 Qf8 Ra2 Qg2 Ra1 Qbh1 Ra2 Kf1+ Kd1 d2 Ra1 Qc6 Nc5 Qf2 Nb7 Qc5 Ra2 Be3 Ra1 Nh6 Ra2 Rg8 h8R Re5 Rh7 Rh8 Ra1 Ng8 Rh5 Rh6 Ra2 Bb2 Ra6 Ba3 Re6 Rf6 Rc6 Rf7 Rf6 Qd4 Kc2 Qc5+ Kd3 Rd5+ Ke4 d1R Ra4 Re1 Ra6 Qhh2 Nd4 Ng6 Rh8 Ng1 Nf5 Qh6 Bh5 Nh3 Bd1 Nh4 Bg4 Qg6 Rh5 Re2 Re6 Qh7 Rf6 Red2 Bd1 Rd6 Bg4 R2d5 Bd1 Ng2 Bg4 Qa2 Kf3 Re5 Kg3 Rc6 Kh2 Rce6 Bf3 Qf2 Kh1 Nh4
n1k3rq/1q2rPNb/rbNK4/N2b3q/2b2R2/1N2PQq1/rB4R1/3R3b w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 Nh3 h5 Qd3 f5 Qd1 f3 Ng1 f4 Bh3 Nc6 Kf2 Nce7 Ke1 Nf5 gxf5 Bc5 Bg4 hxg4 Qd2 Be7 Qd1 Bf8 Kd2 g5 Kd3 b5 Ke4 d5+ Ke5 Kd7 a4 f2 h4 f1B c4 d3 e3 b3 f6 d4 c5 f3 a5 g3 a6 g2 a7 b2 h5 d2 h6 g4 f7 d3 h7 f2 Qe1 d1B Qc3 g3 Na3 b1B Rh3 d2 Rh5 b4 Kd5 b3 Rh4 b2 Nc4 Bb3 Rh2 d1Q+ Ke5 Ne7 Ra3 Nd5 Na5 Nb6 Ra4 Bd5 Qb3 Bcb7 c6+ Kc8 c7 Bc5 Qb4 Bfc4 Nf3 g1Q Nd4 f1R Rg2 Rf2 Ndb3 Bbe4 Qc3 b1Q Bb2 Rg8 h8N Bh7 Ng6 Rf8 Nf4 Re8+ Ne6 Re7 Qd3 Qh5+ Qf5 Qg8 Rb4 Bd4+ Kd6 Qh8 Qf3 Rd2 Bc3 Ra2 Ng7 Qf2 Bb2 Qe4 Rg1 g2 Rd1 g1R Ra4 Rb8 a8R Rg6+ Ne6 Rg8 Ng7 Qg2 Ra6 Na8 Rc6 Bb6 Rc5 Bdc6 Rg5 B6d5 Rg4 Qg3+ Rf4 Bd3 Rc4 Bbc6 Rc2 Rb7 Rh2 Ra7 Rg2 Ra6 Nc4 Kb7 c8N Kb8 Nca5 B3c4 Na7 Bb7 N7c6+ Kc8 Qf2 Qb1 Rgg1 Bh1 Rg2 Qe4 Nb8 Bc6 Qf3 B6d5 Nbc6 Be6 Nb8 Qb7 Nbc6 Bed5
r1r1r1N1/1N1r4/2B1R1pK/P1b1nR1q/1PkbQ3/n1b2N2/3nq3/2r1N1R1 w - - 0 1 legal: proof: g4 h5 f4 hxg4 b4 e5 b5 exf4 b6 axb6 Nc3 b5 Na4 b4 Nb2 b3 Nc4 b2 Na3 b1N d3 b5 Bh3 b4 Nf3 d6 Bf1 b3 Ng1 b2 Be3 Be6 Bc5 Bb3 cxb3 dxc5 Kf2 Ke7 h4 Kd6 e4 f5 h5 g3+ Kf3 g2 e5+ Kd5 e6 g6 h6 c4 b4 c5 e7 c3 e8N c2 h7 c1R d4 c4 Nd6 c3 Ne2 g1B Nb7 c2 Nb5 Nc6 a4 Bc5 a5 Qc8 Rh5 Na3 Rb1 Nf6 Bg2 Kc4 d5 Bgd4 d6 Ne4 d7 Re8 d8N Qd7 Ra1 b1R h8R Rc8 Ng1 Ne5+ Ke2 Ra8 Nf3 Nd2 Nc6 Rb3 Qh1 Rc3 Qh4 Rd1 Rb1 c1B Ne7 Bb2 Ng8 Rcc1 Qg4 Bbc3 Ne1 Rc2 Qf3 Rdc1 Qe3 f3+ Kf2 f4 Rf5 Qc8 Rh7 Qe6 Re7 Qd7 Re6 Qc8 Kg1 f2+ Kh2 f1R Kh3 f3 Kh4 f2 Kg5 Rg1 Qf4 f1Q Kh6 Qe2 Bc6 Rf1 Qe4 Rf4 Rg5 Rf7 Rg1 Rd7 Rb3 Bb2 Rf3 Bc3 Rff6 Qd8 Rf5 Qh4+ Rh5 Qhg4 Rf5 Ba7 Qe3 Bdc5 Nd4 Bab6 Ndf3 B5d4 Ng2 Bbc5 Qe4 Bb6 Ba4 Ba1 Rf8 Kc3 Bb5 Kb3 Rf5 Rcc8 Ne3 Bbc5 Nc2 Bac3 Bc6 Kc4 Nce1 Qh5+
q3RK1b/3rR3/1qpn2k1/1Pr2R2/2q1N3/1Q1b2B1/2qb1R1P/nnB1B1q1 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 g3 h6 Bg2 h5 Bf3 Qg5 Nc3 Qd8 Ne4 Qd6 Nf2 gxf3 g4 Qd7 g5 Qd8 Ng4 hxg4 Kf2 a5 e4 f5 b4 Kf7 d4 c6 b6 c3 b7 c2 d5 g3+ Kf1 f2 Ke2 f1Q+ Kd2 f3 Kc3 g2 Kd4 a4 Ke5 a3 d6 f2 b5 f4 d7 f3 Qe1 a2 Qe2 Na6 b8B Ra7 Be3 c1B Qd3 Nc5 Qc2 Kg6 Nh3 g1Q Qb3 Na4 Ke6 Qd1 e5 f1Q Nf2 Bd2 Ne4 Qc2 Re1 a1N Re2 Rh5 Rf2 Nf6 Bf4 Bc3 Bc1 Bg7 Bd6 Qc7 Ke7 Bd2 e6 Qfc4 Bg3 Bh8 Kf8 Nc3 d8B Qb6 e7 Rd7 e8R Nb1 Re7 Ne8 Bdc7 Qa4 Bcd6 Qaa6 Bb4 Qa8 Ba5 Nd6 Bb4 Kf5 g6 Rg5 g7 Kg6 Bc3 Rc5 g8R+ Kh5 Rg2 f2 Ba5 f1Q+ Rf2 Qfc4 Rf5+ Bg5 Bae1 Kh6 Rf2 Be3 Rg5 Bd2 Rgf5 Kg6 Re8 Qg2 Rhf1 Qg1 Re7 Rc7 Rfe5 Bf5+ Re8 Rd7 Re7 Bg4 Rf5 Be2 R1f2 Bd3
1b4nn/4kB2/KPq2R1N/1pq1P1NQ/4B1n1/2r4n/1B2r2r/1bN1qBn1 w - - 0 1 legal: proof: f4 d5 h4 e5 b4 exf4 c4 g5 cxd5 gxh4 Bb2 a6 Ba3 Ne7 Bc1 Ng8 a4 Qd7 b5 Qd6 a5 Qd7 Qa4 Bb4 b6 Bf8 Qb5 axb5 a6 Qe7 a7 Qd8 Ra6 bxa6 d4 f5 Kd2 h5 Kc3 c5 e4 a5 g4 c4 e5 a4 d6 h3 Kb4 h4 Ka5 c3 d5 f3 g5 f4 d7+ Ke7 g6 f2 g7 f3 Be2 f1Q Nd2 a3 Bd3 c2 Ne2 a2 Nf4 a1R+ Kb4 h2 Be4 f2 Nd3 h3 Bg2 Qc7 d8N Ra2 Nf4 Qc5+ Kb3 Nc6 Be4 Qe1 Rf1 h1Q Nf3 h2 Nd3 Bf5 Ng5 Rc8 Ndf7 Nd8 Nh6 Nf7 a8B Qf3 Ba3 h1N Bb2 Bh7 Rg1 f1N Rg4 Nh2 Rf4 Rc7 Rf6 Ng4 Bc6 Qg2 Nc1 Nhf2 Ba8 Nh3 d6+ Ke8 d7+ Ke7 Bd3 Qgc6 Be2 Bd3 Bf1 Rh7 Bb7 Nh8 Ba8 Kd8 Bb7 Bd6 Ba8 Rc8 Bb7 Bb8 Ba8 Ne7 g8B Bg6 Bgc4 Ng8 Bf7 Ke7 Bb7 Ra4 Ba8 Re4 Bb7 Re2 Ba8 Qc7 Be4 Q5c6 Bc3 Bf5 Kb4 Qc5+ Ka5 Q7c6 Ka6 Bg6 Na2 c1N Bb2 Rc7 Bed5 Bb1 Be4 Nd3 Nc1 Ng1 Bfg6 Ndf2 Bh5 Nfh3 Bf7 Kf8 d8Q+ Qe8 Qc8 Ke7 Qf5 Qec6 Qg6 Rd7 Bc4 Rd3 Qh5 Rc3 Bf7 Rg7 Rf4 Rg6 Rf5 Rd6 Rf6 Rdd2 Be6 Rh2 Bf7 Rde2
1b2k3/1q1N1r1n/P1rP1r2/1N1nKRN1/B2qn2p/QNq5/1R4nR/1bb5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 Kf3 h5 Ke4 c5 g4 f5+ Ke5 c4 d4 f3 e4 c3 a4 f4 g5 f2 g6 b3 g7 f3 a5 b2 d6 b4 a6 h3 d5 b3 Ra5 c2 Bd2 c1B Qe2 h2 Rb5 h4 Qe3 Rh7 Qf4 Nd7+ Kd4 Ndf6 e5 Qa5 e6 Ne4 e7 Bf5 Qe3 Ngf6 g8N Rc8 Bc3 Rf7 Nd2 b1N Nh3 b2 Nb3 Nh7 Ng5 Rc6 Ke5 Bg6 Be2 f1N Bd1 f2 Bd4 Nbc3 Qg3 b1Q Rb6 Kd7 e8N Ne3 Nc7 f1R Nb5 Ng2 Nf6+ Kd8 Nd7 R1f6 Rf1 h1Q Rf5 Ke8 Bc2 Qd1 Rb7 Na4 Qc3 Be7 Qb2 Qc7 Qa3 Nb6 Nd2 Bd8 Nc3 Qh1 Bf2 Qb4 Rf3 Nc5 Nf8 Qb5 Ba4 Be4 Rf5 Qc4 Bg1 Na8 Rb2 Nf4 Nb5 Bb1 Nb3 Qb7 Be3 Nc7 d7+ Ke7 Nfe6 Qd1 Rh2 Ng2 Nf8 Qb4 Bg1 Ne4 Bf2 Ne6 Bb6 Nef4 Ba7 Ba5 d8R Bc7+ Rd6 Bb8 Nd7 Ke8 Bf2 Rc7 Rc6 Qbe1 d6 Nd5 Rc2 Rc6 Bd4 Qc3 Rb2 Qdxd4+
2B4q/3n1PRq/nb2n1Nb/1R1K2B1/k1nB1r2/1R1b4/2qQP1p1/2r2R1r w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 axb5 e5 g5 h5 g6 h4 Nc3 e4 Qd3 exd3 Ne4 fxg6 Nf3 g5 Ng3 hxg3 Ng1 g4 Kd2 a5 h4 g5 c4 d5 b4 Kd7 f4 a4 b6 Kc6 b7 g2 f5 a3 h5 a2 f6 g3 h6 g4 h7 Qd7 c5 Kb5 c6 Ra4 c7 Bh6+ Kd1 d2 Kc2 d1Q+ Kb2 d3 Kc3 d4+ Kb2 d2 Rb1 d3 Kc3 a1Q+ Rb2 Na6 Nf3 g1B b8Q+ Bb6 Nh4 g2 Qa7 g1N Bh3 g3 Ng6 Nf3 Rf1 g2 f7 Nf6 Qb8 Qf5 Qb7 Bd7 c8R Ng5 Rg8 Ne6 Rg7 Be8 Qe4 Nd7 Qd4 Qh5 Bf5 Qb1 Rb3 Qh2 Rf4 Qdh1 Rf3 d1R Bg5 d2 Rf1 Qc1+ Kd3 Qc2+ Ke3 Rc1 Bh3 Qa2 Ke4 d1N Kd5 Qc2 Qd2 Nb2 Bf5 Nc4 Bh3 Rg8 h8B Raa1 Bf5 Ka4 b5 Rab1 Rh7 Ra1 Bd4 Rh8 Rg7 Ra3 Rb1 Rf3 Rb3 Rf4 Bg4 Ba5 b6 Rh7 b7 Bb6 b8R Qh4 Be7 Qf6 Rg8 Qh8 Bg5 Bg7 Rc8 Ndc5 Bgf6 Na3 Rc7 Nd8 Bg1 Bb5 Bc8 Bd3 Bgd4 Nde6 Bd8 Nc4 Bg5 Nd7 Rc5 Bf8 Rcb5 Qh6 Bg1 Q6g7 Bd4 Rh1 Be3 Qgh7 Bd4 Bh6 Rg7 Bc7 Rb2 Ba5 R2b3 Bb6
rq1B1rR1/1b2BPR1/1K6/QB1r2n1/n1q1pbN1/b5Pn/7n/R2q2kB w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Nc3 fxe4 Nd5 b6 Nb4 axb4 a5 Na6 axb6 Nb8 c3 e3 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Kf4 b7 d5 b6 e5+ Kb5 h5 f3 Kg3 f4 Kf2 g3 e4 c4 h3 c5 e2 c6 e1B c7 d3 f5 d2 f6 h4 f7 d4 Qg4 d1R Ra6 h2 Ra5 b3 Bg2 b2 Qh5 b1N Qg6 h3 Qh6 d3 Bd2 Nc3+ Kc4 Nc6 b8B Ne5+ Kb3 Nf6 b7 Nf3 Kc4 Nh7 Qa6 Nhg5 Ra1 Na4 Kb5 Ba3 Bb4 Bd2 Qa5 Bf4 Be7 d2 Ba7+ Qd4 b8R Ba6+ Kc6 Rg8 c8B Rh8 Rb6 Rf8 Bd7 Qe5 Bd8 Qb8 Be8 Bb7+ Kb5 Re1 Rg6+ Re3 Be7 d1Q Bb6 Qc2 Bc7 Rd3 Bcd8 Qa2 Rg7 Rd4 Qa6 Qc4+ Ka5 Rd6 Bb5 Rd5 Rg8 Nd2 Nf3 Nf1 Rg1 h1Q Ne5 h2 Bf3 Qg2 Rh1 Qh3 Bg2 Qh5 Qa7+ Nc5 Kb6 Qd1 Rg1 h1N Qa5 Nd2 Re1 Nf1 Re2+ Kg1 Ng4 Nf2 Bh1 Nfd3 Rh2 Nf2 Rh3 Nh2 Rh7 Nfh3 Rhg7 Na4+
1qN2b1n/2PP1bR1/1RrqRBr1/r3q1n1/4p1Kb/2Q1q1RB/k7/4B1n1 w - - 0 1 legal: proof: h4 c5 c4 d5 a4 f5 e4 fxe4 b4 g5 Na3 gxh4 Nb1 b6 Na3 b5 axb5 cxb4 c5 Bd7 Nc4 dxc4 Bb2 Bf5 Bc1 Bc8 Ke2 Kd7 g4 Ke6 f4 Kd5 d4 h5 b6 e5 b7 a5 c6 b3 f5 e3 Kf3 b2 c7 b1Q f6 e2 g5 e1B f7 c3 g6 e4+ Kf4 h3 g7 h4 Ba3 c2 Bg2 Kc4 d5 Kb3 d6 h2 Ra2 h3 Qc1 a4 Nf3 Nc6 b8B Nge7 g8R Bh4 Ng5 Rh6 Qd2 c1R Bc5 a3 Re1 h1Q Bd4 h2 Rg6 Ra5 Bg7 Nd4 Bh3 Ne6+ Kg4 Rc6 Rc2 a2 Bf6 a1Q Rg7 Rg6 Ba7 Qe5 Bf2 Qg1+ Bg3 h1N Rb2+ Ka3 Rb6 Qe3 Qc3+ Ka2 Rg1 Bd7 Be1 Ng3 Rg2+ Ne2 Rg3 Be8 d7 Ng1 Rh7 Qbd3 Rh6 Bg7 f8R Qdd6 Rg8 Bf8 Rg7 Qb8 Rf7 Rg8 Rg7 Ng6 Nf7 Nh8 Rhg6 Ng5 Rh6 Qa3 Nd6 Bf7 Nc8 Qb4 Bd8 Qbe7 Re6 Q7c5 Bf6 Qcd6 Rh7 Rg6 Rg7 Qed3 Be7 Q3d4 Bf6 Qe3
2R1n2r/1K3P2/RNnBq3/b1Q3N1/b1q1r3/bR1q4/p1Pk1q2/NqR1q3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 h4 gxh4 Ke2 c5 Ke1 cxd4 Kd2 d3 Be2 dxe2 Ke3 Kf7 Kd4 Kg6 Kc5 Kf5 f4 e1Q b4 h5 g3 e5+ Qd6 a5 b6 e3 b7 Ke4 g4 h3 g5 h2 b5 a4 f5 e2 b6 h4 g6 h3 g7 a3 f6 a2 f7 Nc6 b8N Ra4 b7 Qdh4 Kb6 Nf6 g8R Ne8 Be3 Qhf2 Qh6 d5 Na6 d4 b8R d3 Rb7 d2 Rc7 d1Q Rb7 Bd7 Qe6 Ba3 Qd6 Qd3 Nf3 Qec3 Bc5 e1Q Ra7 Qcc4 Nb4 Qe6 Rf1 h1Q Kb7 h2 Ra6 Qhg2 Qc7 h1Q Bd6 Ke3 Nbd2 e4 Rb1 Qgg4 Rb3 Qb1 Rd1 Qhe1 Rc1 Ke2 Qb6 e3 Nd5 Re4 Ng5 Qgf4 Qa7 Qfg4 Nb6 Qec4 Ndf3 Qge6 Nd4+ Kd2 Rf8 e2 Rg8 Nf6 Rc8 Ne8 Na8 Nb8 Qc5 Ba4 Nb6 Nc6 Rb5 Qef1 Rb4 e1B Nb3+ Ke2 Rb5 Ba5 Na1 Kd2 Rb3 Q1e1
rq3bBq/1Bn3b1/1B1R4/1Q2pN1P/1PRb2n1/b3b2B/R1nKnk2/2r5 w - - 0 1 illegal: No possible last move, all moves rejected
3RNR1K/2P1R2b/n3qp2/4q1B1/1q2rQ2/B1qP3B/1bk2n2/1Rb2rrr w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 gxh4 c4 e5 Na3 exf4 axb5 cxb4 c5 d5 Nc4 dxc4 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5+ Kh5 Kd4 e4 a5 g4 h3 g5 b3 d3 Kc3 g6 f3 e5 f2 g7 a4 e6 f6 b6 h2 e7 a3 e8R b2 c6 b1Q c7 a2 b7 Ra4 Ba3 Qe7 Bc5 Nh6 g8R Ng4 Be3 Qe6 Bb6 Na6 b8B Ba3 Rg7 Qb4 Bc5 Rg8 Qb1 Bb2 Bh3 f1R Rd8 Nf2 Kh6 Bb7 Be7 Be4 Nf3 Bf5 Qe1+ Kc2 Ng5 c3 Rb1 a1Q Ne4 Qaa3 Rhg1 h1Q Ba7 Qh2 Nd6 Qhe5 Ne8 Bg6 Rf7 Be4 Rh1 Rgg1 Qe3 Bg6 Kg7 h5 Rh2 h4 Rf8 Bh7+ Kh8 Qab3 Qf4 Q3c4 Bg4 h3 Be3 Qcc6 Rg2 h2 Bh3 h1R Bd6 Kb3 Rg3 c2 Rg7 c1B Re7 Qcc3 Bdc5 Kc2 Bd2 Qb7 Ba3 Rc4 Qg4 Qbb6 Bg5 Re4 Qf4 Qbb4
bb3rB1/kN2R3/r7/B1NrKnPP/r2r2rq/b7/Qp1N2n1/N3B2b w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 Qb3 e6 Qg3 exf5 Qf3 f4 e4 gxf3 g4 h5 g5 Nd7 Na3 Nb8 Rb1 Nf6 Rb3 Ng8 Re3 Na6 Nc2 Qe7 a4 Qd8 Na3 Nb8 Re2 Nc6 Rg2 Nb8 Rg4 hxg4 Kf2 Kd7 d4 b5 h4 f5 a5 c5 e5 Kc7 e6 Kb7 d6 c4 d7 b3 d5 g3+ Ke1 g2 Kf2 b4 h5 c3 d6 c2 e7 Nh6 e8N Na6 Bb5 Nc5 Ng7 Ne6 Bb2 c1B Ne2 g1R a6+ Kb6 a7 Bb7 Rh2 Qe7 d8N Rg4 Kf1 f2 d7 Bh1 Be5 b2 Ng1 b1R Ke2 f1R Kd3 f3 Bf6 f2 Ba1 b3 Rg2 f4 Ke4 f3+ Ke5 Bf4+ Kd5 Rfd1+ Bd3 f1B Re2 f2+ Nf3 Bfg2 Bf6 f1R Re5 b2 Re2 Ra1 Nc2 Bb8 Bc3 Nf4+ Kd4 Rd2 Nge6 Rfd1 Re1 Ra3 Na1 Nf5+ Ke4 Qc5 Bc4 Qf2 Ba2 Bb4 Nc5 Rf8 Bg8 Rd6 Re3 Qg3 Be1 Qh3 Ndb7 Qh4 d8B+ Bc7 Na5 R1d4+ Ke5 Ra2 Nd2 Bd5 Re2 Ng2 Re4 Rc8 a8Q Ra3 Qc6+ Ka7 Qa4 Bb8 Qb3 Bb7 Qa2 Ba8 Nab7 Rcc6 Ba5 Ra4 Re2 Ba3 Re3 Rdf4 Re4 Ra6 Re3 Rdf6+ Kd5 Rfc4 Re7 Rfd6+ Ke5 Rcb4 Nce4 Rbd4 Nec5 R6d5#
RBq1r1RR/1Q3N1b/1n1bn1n1/n1Bb2r1/1p3rR1/1bP5/KP4r1/3k2B1 w - - 0 1 illegal: No possible last move, all moves rejected
1b1N1b1b/Kb1B1n2/5pPR/3BqnPb/3r3q/3BbRb1/1B1n3k/3Q2R1 w - - 0 1 illegal: No proof kernel
1KR5/3b4/1BnBbB1b/1n1q1n1q/qRq3P1/1n2P3/qp1R3N/rk1BQ3 w - - 0 1 legal: proof: d4 a5 c4 d5 g4 dxc4 b4 axb4 g5 e5 d5 f6 Nd2 fxg5 Qb3 g4 Qc2 Kf7 Qd1 Ke8 h3 b5 Ndf3 g5 Qb3 g3 Kd2 g4 Qa4 g2 Qd1 g3 Nd4 exd4 Ke1 Ra6 Qd3 Rg6 Qd1 Rg4 hxg4 Bd6 Rh2 Bc5 Rh1 Bf8 Kd2 Kd7 a4 Kd6 f4 Kc5 a5 h5 f5 h4 f6 b3 e3 Kb4 f7 c5 a6 c3+ Kd3 c4+ Ke4 d3 Ke5 c2 d6 Kc3 d7 b4 a7 h3 a8R b2 R8a2 b1N Kd5 b3 Ba3 c1Q Qf3 b2 Qd1 d2 Bc5 h2 Ra6 Nh6 Qa4 d1B Qc6 Kc2 Ra8 c3 Ba3 Nf5 Qc5 Bh6 f8B Nc6 Ne2 g1Q Qc4 g2 Bac5 Na3 Ng3 Nb5 R1a4 Kb1 Rb4 Ba4 Be2 c2 Bb6 Qgd1+ Qd3 g1Q Nf1 Qg5 d8B Qh5 Qd2 Be6+ Kc5 Rh7 Bf6 Ra7 Rc8 Qg2 Rg1 h1Q Bd6 Qf7 Qc3 Qhh5 Qe1 Qf3 Rg2 Qg8 Bbd8 Qfd5+ Kb6 Qa2 B8c7 Qdd5 Bcd8 Qcd1 Nh2 c1N Bf3 Ra5 Kb7 Nb3 Bb6 Qc4 Rd2 Qd8 Bf4 Qdd5 Bd6 N3d4 Bdc7 Qab3 Rh8 Nd8+ Kb8 Nbd6 Rc2 Bad7 Qh4 Ra1 Qe1 N6b5 Rd2 Qa2 Bd6 N8c6+ Kb7 Qdc1 Bd1 Q1c2 Rd8 Qca4 Rc8 Na5+ Kb8 Ndc6+ Ka8 Nb3+ Kb7 Nd8+ Kb8 Nc6+
N1n1K2n/R7/2nrQP2/1b2n1qk/1n3Bpb/2RB3b/PR1n1B2/4B1nb w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 hxg4 Nc3 b5 b4 axb4 e5 c5 Ne4 fxe4 f5 cxd4 Bg5 Ra6 Bc1 Rf6 exf6 Qb6 Ne2 Qc7 Ng1 Qd8 Kd2 Kf7 h4 d5 c4 e5 h5 g5 c5 g3 h6 b3 c6 b2 h7 b1N+ Kc2 b4 Kb3 d3 Ka4 d2 Kb5 b3 c7 e3 Rh2 d4 Rh1 e2 Bh3 e1N Ne2 e4 Qc2 d1N Nc3 d3 Qd2 b2 Rf1 e3 Nd5 e2 Qb4 g2 Ne7 g1N Qd6 d2 Qe5 Nef3 Rf2 e1N Rg2 Ndc3+ Kb6 d1B Qe2 Nh6 Bf4 Ne4 Nd5 Nbd2 Rc1 b1B Rc3 Nd6 Kc5 Rg8 h8B Rg6 Nb6 Ne5 Na8 Nc2 Qe1 Bb7 c8R Nb4 Rc7+ Be7 Qe4 Bc8 Ra7 Bd3 Re2 B1c2 Bf1 N8c6 Rf2 Bda6 Bd3 Bb5 Qe1 Qg8 Kb6 Bb3 Kc7 Bd5 Bg7 Bh1 Qe3 Nf1 Rb2 Nd2 Bf8 Bd7 Qe4 Nc8 Qd5+ Ke8 Qe6 Nhf7 Bg7 Nh8 Bh6 Qg7 f7+ Kf8 Bg3 Rf6 Be1 Rg6 Qc4 Rd6 Qe6 g4 Bf4 Qg5 Bf2 Kg7 f8B+ Kh7 Bg7 Bc4 Bf6 Kh6 Be1 Kh5 Bf2 Qh6 B6h4 Qg5 Be1 Bf6 Bhf2 Ba6 Be4 Bf1 Bd3 N6e7 Kd8 Bb5+ Qd7 Bh3 Ke8 N7c6 Qe7 Qh6 Qe6 Bh4 f6 Qg5
1kn5/N1qnn2K/3PBBrq/R2bQ1rP/B1N3N1/1q1p1q1B/3n3r/4r3 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 d5 g6 d3 Nd2 d4 Nb1 d2+ Ke2 hxg6 Nh3 g5 Ng1 g4 a4 e6 Bg2 d3+ Kf1 Bc5 Ra3 Bd4 exd4 Rh4 Rc3 Rh5 Rc5 Rh8 Re5 f6 Bh3 fxe5 Kg2 e4 Kg3 Nh6 Bf1 Ng8 Kg2 Qb6 Qe1 Qd6 Qd1 Qd8 Kg3 Kd7 Kf4 Kc7 c4 g5+ Ke5 b5 h4 b3 f4 b4 f5 e3 d5 b2 f6 b3 a5 e2 f7 e1N f8N g3 a6 g2 c5 g4 a7 g3 c6 Nc2 Be2 Na3 Nh3 g1R Ke4 e5 Nh7 g2 Nf4 Nc4 Nf6 Qf8 Bf1 Nd7 Kf5 e4 Kg6 e3 Qh5 d1Q Ng4 e2 Nc3 b1N Qe5+ Nd6 Bb2 Bb7 Nb5+ Kc8 c7 e1R Bd4 b2 h5 Nd2 Rh2 b1Q Bb2 Rb8 a8B Qf3 Rh4 Rh1 Ba1 g1Q Ng2 Qc2 N2e3 Qh2 Bh3 Qb3 Nc4 Qhf4 Bb2 Rh2 Ba1 Rh7 Bc3 Rf7 Bb2 Rf6+ Kh7 Rg6 Ba1 Ba6 Bc6 Ne7 Bd4 Bb7 Bb2 Nb6 Be8 Bc6 Na7+ Kb7 Bc3 Nd7 c8B+ Ka8 Bb2 Rb5 Ba1 Kb8 Bd4 Nc5 Be6 Ba8 Bc6 Nd7 Bb2 Ra5 Ba4 Bb7 Qf5 Rc5 Bf6 Ndc8 d6 Bd5 Qe5 Qd4 Nh6 Qdc3 Rf4 Qa5 Ng4 Qc7 Rf5 Rg1 Nb2 Rcc1 Nc4 Rce1 Nh6 R1g5 Ng4 Be4 Qb2 Bc6 Ra5 Bd5 Qe5 Qh6+
3rr3/5N1b/n2R1B2/pR1q1nQ1/q2rbP2/1P3n2/1bBk1qKp/B5RR w - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 b5 axb5 g5 Nc3 gxh4 Ra6 dxc3 Ra2 Qb6 Ra1 Qd8 f4 Kf7 Kf2 Ke6 g4 a5 g5 Kf5 g6 d5 c5 e5 b6 h5 b7 c2 c6 e3+ Kf3 d4 g7 h3 c7 h2 b3 e2 Bb2 e1Q Be2 c1Q Qd2 d3 Bf1 e4+ Kg2 e3 Kh3 Ke4+ Kg2 h4 Bc3 e2 Bf6 Qd5 Qb4+ Ke3+ Nf3 d2 Ra2 d1R Ra4 Qcc4 Bc3 Na6 b8B Nh6 g8R Bf5 c8R Bg7 Bd6 Bh7 Bf6 Nf5 Rc5 Rd4 Rb5 Re8 Qc5 Qd2 Ra1 Qa4 Rd1 Qda2 Bde5 e1N+ Kh3 Qb2 Bd3 Qf2 Ng5 Nf3 Bc2 Ke2 Rdg1 Kd2 Nf7 Rd8 Re8 Rg8 Re6 Rge8 Kg4 h3 Rd6 Re4 Ba1 Rd4 Re1 Bh8 Rhg1 h1B Rc1 h2 Kh3 Ne5 Rcf1 Be4 Rh1 Qe1 Rfg1 Nf3 Kg2 Rd3 Be7 Bb2 Bf6 Rd4 Qc8 Ng3 Qg4 Nf5 Qg5 Qf2+
2rqB3/1N1Pp3/1bR1R1n1/q1r1q2R/Qn2k1N1/1np5/2qq1PK1/1b3RN1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 Ba3 dxc4 axb5 f5 b6 fxe4 b5 Ba6 Bc5 Bc8 Bb4 axb4 d4 Kd7 g4 Kd6 b7 Kd5 b6 c5 g5 h5 g6 h3 g7 c3 Ba6 c2 Kf1 c1N Ra3 e3 Qe2 h2 Bb5 b3 Be8 h4 Ra4 h3 Qa2 c4 Bh5 c3 Ne2 Ra5 Bg4 Nc6 b8N Ne5 b7 Ng6 Qa3 b2 Bd7 Nf6 g8R Rc5 Rc4 Ke4 Ng1 Nd5 Na6 Bg7 b8R Nb4 d5+ Bd4 d6 Nb3 Be8 Bf5 Qa4 Qa5 Na3 b1Q+ Ke2 Qc1 d7 Qc2+ Kf1 Qd2 Rb5 Qc2 Ne2 Qd8 Rg1 h1Q Ra5 Qd2 Nc2 h2 Rf8 Qf3 Rf6 Qh5 Kg2 Rg8 Rf1 h1Q+ Kg3 Rf8 Ng1 e2 Ne3 e1Q Ng4 Qh7 Rd6 Q1h5 Kg2 Qee2 Rb5 Qg7 Re6+ Qe5 Ra5 Qed3 Rb5 Q3c2 Ra5 Rc8 Rcc6 Bb6 Rd5 Qhg5 Rd3 Rh8 Rh3 Rh5 Rh2 Qd5 Rh4 Qa5 Rh3 Qgd2 Nc5+ Kd5 Nb7 Ke4 Rh2 Qcd3 Qa2 Kd4 Nd6 Qee2 Rh3 Be4+ Kh2 Rc5 Rh5 Bf5 Qa3 Qe5+ Kg2 Qb1 Qa2 Bc2 Nb7 Ke4 Qa3 Qbd1 Qa2 Bb1 Qa4 Q1c2
2r4q/n1Nb2rr/b2N3P/1P3Bpp/K2r2n1/N1n1Bq1B/1kB1Q3/1q3R2 w - - 0 1 illegal: No possible last move
1n1n1R2/K1R3BN/1n1bq1P1/3R2q1/pPr1R3/N1qb2rb/2bQ1N1p/k7 w - - 0 1 legal: proof: a4 c5 d4 cxd4 h4 e5 f4 exf4 h5 b5 e3 d3 axb5 g6 c3 gxh5 Be2 h4 Bf3 Be7 Bd5 Bb4 Bb3 Bf8 Bc2 dxc2 Kd2 Ke7 Kd3 Ke6 Kd4 f5 g4 d5 b4 h5 e4 a5 b6 f3 g5 h3 g6 f4 b7 h4 c4 h2 e5 f2 c5 f1N c6 h3 c7 f3 Qd2 a4 Na3 f2 Qf4 Ne3 Nb1 f1B Na3 Ne7 Kc5 d4 Kb6 Kd5 e6 d3 Qf7 Kd4 Nc4 Kc3 Nf3 d2 Qe8 d1B Nfe5 Bd3 Qd7 Nec6 Na3 Qg5 e7 Nd8 e8N Bd6 Re1 h1Q Nf6 h2 Nh7 Qd5 Ng4 Qe6 Nf2 Ra5 Rb1 Rc5 Ka7 Nc4 Re4 Nb6 Bb2+ Kb3 Ba1+ Ka2 Bg7 c1Q Rb2+ Ka1 Rd2+ Be5 Qd5 B1c2 Rd1 Bd7 c8R Rc4 Rc7 Rf8 Qd6 Rf3 Rd2 Rg3 Rd1 Na6 b8R Bc8 Ra8 Nb8 Rd2 Qb2 Qd4 Bd6 Qe3 Bf1 Rd5 Qc3 Qd2 Bh3 Rf7 Ba6 Rf8 N8d7 Rc8 Nb8 Rc7 Rd4 Rcf7 Bad3 Rc7 Rc4
1n4k1/2qB2Bb/3q2pQ/B3nPK1/1Pr1n1p1/2q3R1/r2bN1B1/NN1bq3 w - - 0 1 illegal: No possible last move
1B1BRR1R/1R1n3N/4p1r1/2q4k/bpq1P1b1/3r2q1/1b1P4/QKqBr2n w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 f3 fxg4 Nh3 gxf3 Ng1 h5 Na3 Ra5 Nc4 Ra4 Ne5 Ra8 Ng4 hxg4 e4 Kf7 a4 Kg6 h4 c5 a5 b5 a6 c4 a7 c3 d6 f2+ Ke2 c2 Kd3 g3 d7 g2 Bb2 c1Q Qe2 b3 Qe3 b4 Qd4 Nh6 Ra6+ Kh5 Ba3 g5 Ne2 g1Q Rh2 g4 Qe5+ Nf5 Qc5 b2 Ra5 b1R Nd4 g3 Rb5 g2 Ne6 Bg7 Bb2 Qg8 d8B Nd7 Nf8 Rh6 Rb7 Rg6 Qd4 Ng3 Nh7 Nh1 Bc3 Qa3 Kc2 Re1 Bc4 f1B Bb3 Rb8 a8R Bb5 Rh3 Bh8 Rf3 Ba4 Rf8 Qc4 Qg7 Qgc5 Qf6 Re2 Kb1 g1Q+ Bd1 Qg3 Be5 Qaf3 Bf4 Re1 Qa1 Bb2 Bd6 Nb6 Bf4 Bg4 Re8 Rc8 Bb8 e6 Rf8 Nd7 Re8 Kh6 h5 Rc6 Rf8 Rd6 Re8 Rd4 Rf8 Rd3 Re8 Kg7 h6+ Kf7 Nf6 Qfe3 h7 Kg7 Rf8 Kh6 h8R+ Kg5 Nh7+ Kh5 Ra6 Qed4 Rc6 Qdc3 Rcc7 Ne5 Re7 Nd7 Ree8 Qc1#
b2bR3/3QN1B1/2p1qr2/N3q1bR/K3Pn1r/4P1kp/1q4N1/r3NnRb w - - 0 1 legal: proof: c4 e5 b4 d5 f3 dxc4 b5 e4 fxe4 a6 Nc3 axb5 Nb1 b4 h4 g5 a3 gxh4 e3 c3 Bc4 Nf6 Ke2 Ng8 Ba2 b3 Ke1 bxa2 g4 Ke7 d4 Kf6 a4 Kg5 a5 b5 a6 h5 d5 f5 d6 c2 Kd2 f4 Kc3 b4+ Kb3 c6 a7 f3 d7 f2 Qe1 f1R Bd2 c1B Nc3 h3 Qf2 h2 Nge2 h4 Ng3 h3 Qf5+ Kh4 g5 Bh6 g6 Bb7 g7 Na6 Nb5 Qe8 d8N Bb2 Rb1 a1Q Nd6 Bf6 Rg1 h1B Qc8 Qe6+ Nc4 Nc7 Ne2 Qae5 Nc1 Bhg5 Qd7 Nh6 g8N Nf5 Ka4 b3 Nd3 b2 Na5 Ng3 Ne7 Nd5 Ne1 Nf4 Bc3 Kg4 Rd1 b1Q Rd5 Rh4 Rb5 Qb2 Rc5 Rc8 a8R Rc7 Rb8 Ba8 Rcb5 Ra7 Rd5 Q6f5 Ne6 Rf2 Re8 Ra6 Nc5 Qfe6 Ng2 Nf1 Nd3 Kg3 Nde1 Ra7 Nc8 Bd8 Ne7 Qeb8 Bg7 Q8e5 Rh8 Ne2 Rb5 Rf6 Rb8 Nf4 Rh5 Bc7 Re8 Bd8 Qd4 Rd7 Qa7 Rd1 Qd7 Ra1#
br2r1q1/B1R2nN1/1P1NN3/1q3BNQ/6Bp/b2nP1b1/Kn3kp1/q3q3 w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 b4 b5 a4 gxh4 axb5 e5 f4 exf4 Ra3 Ne7 Rah3 Ng8 Rg3 fxg3 Kd2 Ke7 c4 Ke6 Kc2 Ke5 Kb2 Ke4 g5 d5 c5 f5 e3 a5 g6 h5 b6 g2 c6 a4 b7 d3 g7 d4 b5 d2 c7 d3 b6 h3 Ne2 Kf3 Ng1+ Kf2 Qb3 d1Q Qc2+ d2 Bb5 h2 Qb3 f4 Bd3 a3+ Ka2 h4 Bb2 f3 Qd5 Nh6 g8N Nd7 b8N Nf7 Be5 Qe1 Bf5 d1N Nd2 Nc5 Nc6 Nd3 Nge7 Bb7 c8B N1b2 Nc4 Rb8 Nd4 Ba8 Ne6 Rg8 Nd6 Qa1+ Kb3 a2 Bg4 Qe1 Nef5 a1B Ka2 Be7 Nfg7 Re8 Bf4 Bf8 Qh5 Be7 Ndf5 Ba3 Nd6 Qg5 Nf8 Qg6 Bcf5 Qh7 Nfe6 Qh8 Ne2 Qg8 Rg1 h1Q N2d4 Qa5 Rd1 Qb5 Ng5 Qe1 Rb1 Kg1 Bg3 f2 Nde6 f1Q Bf4 Kf2 Rc1 Nd1 Rc8 Be5 Rc7 N1b2 Nc4 Rb7 Rc8 Qd1 Rc5 Qfe1 Rc8 Bf6 Bb8 Be5 Nd6 Bg3 Ba7 Rb8 Rc7 Qa1#
nnK2R1r/1Rq2Nrp/bP6/k2pR1qn/3P3q/b1b1RQ2/1N1N4/1n3B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 b5 e5 Bb2 exf4 Bd4 c5 Bxc5 a3 Bd6 Nc6 Bb8 Nxb8 Kf2 f5 Kf3 a5 d4 d5 e4 Kd7 g4 Kc7 c4 Kb6 e5 h3 g5 a2 e6 a4 e7 a3 e8N h2 c5+ Ka5 b6 Ra7 g6 Qg5 c6 Rg7 c7 Ba6 c8R Nf6 Nd6 Ne8 Qb3 Nc7 Nd2 Na8 Re1 a1Q Re5 a2 Nf7 Ba3 Rc7 Qc1 Ne2 a1B Rb7 Qc7 Nc1 Bc3 Rg1 h1N Nd3 Ng3 Nb2 Nh5 Rg2 Qh4 Rge2 Qg5 R2e3 Qh4 Kg2 Qg5+ Kh3 f3 Qd1 f2 Qg4 f4 Qf3 Qf6 Kg4 Qh4+ Kf5 Qg5+ Ke6 Qh4 Bg2 f1Q Bh3 Qg1 Bf1 Qgg5 Qg3 Rgg8 g7 f3 Qg2 f2 Qf3 Rd8 g8R Rd7 Bb5 f1N Rf8 Nfg3 Bf1 Ne2 Na4 Ba1 Nb2 Nc3 Nd6 Rg7 Nf7 Nc6 Rd3 Nb1 Rde3 Qb8 Kd7 Qa7 Nd3 Bc3 Nb2 Qb8 Qh1 Qd6+ Kc8 Nb8 Qf3 Qc7+
1nN2B2/P4B2/pnqb2N1/3r1p2/1Pn1B2N/3b1Qrk/qb5N/2bRK2q w - - 0 1 legal: proof: f4 a5 g4 e5 c4 exf4 g5 d5 cxd5 h6 Nf3 hxg5 Ng1 g4 b4 a4 Qb3 axb3 a4 Qg5 a5 Ke7 a6 Ke8 a7 Qd8 Ra6 bxa6 h4 Kd7 d4 g5 e4 c5 d6 Ke6 e5 Kf5 e6 c4 h5 b2 d5 g3 h6 Kg4 d7 f3 h7 f2+ Kd1 c3 d6 g2 e7 c2+ Kd2 Qe8 d8Q Bf5 d7 Bd3 Nc3 b1Q Nb5 f5 Nc3 Nf6 Nd5 Qa2 Nf4 Rg8 h8N Nd5 Nf3 g1Q Nhg6 Nb6 Bg2 f1N+ Ke1 Rg7 Be3 c1B Bc5 Rg8 Ngh4 Nd2+ Bf1 Kg3 Nfg6 g4 Nh2 Ndc4 Qc8 Qgg2 d8N Qec6 e8B Bd6 Nf7 Kh3 Qb7 g3 Be2 Qgd5 Bf3 g2 Rf1 g1B Be4 Bd4 Rh1 Be7 Nd6 Bdb2 Nc8 Bd6 Bf7 Rg7 Nf8 Rg3 Nfg6 Bc7 Bf8 Bd6 Qe7 Qdc5 Rf1 Qg1 Qe5 Qg2 Qf4 Qh1 Qf3 N8d7 Nce7 Rd8 Nc8 Nb8 Kf2 Bdf4 Re1 Rd5 Rd1 Qg2+ Ke1 Bd6 Qf2 Qg1+ Qf1+ Qg2 Qf3 Qh1+
2r2n2/P2r3n/p6q/1BN1pn2/1B1k1r2/1qN5/nPB1QR2/b1Bb1KNq w - - 0 1 illegal: No proof kernel
KnbRN3/q2q1n1p/1r3q2/4QP1P/qq1NB3/2R3Rb/N1p2k2/Rr2q3 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g3 f5 Qc2 f3 Kd1 f2 Qb3 f4 Kc2 Bd6 Qa4+ Kf8 Qb3 f3 Qa4 Bf4 gxf4 Bf5+ Kb2 Bd7 Qd1 Ke8 Kc2 Bc8 h4 Ke7 d4 Kd6 e4 c5 a4 g5 h5 b5 a5 c3 Kd3 c2 d5 b3 a6 g4 a7 b4 Kc4 b2 Kb5 c4 Ra3 b3 Qe1 g3 Be3 c1Q Qe2 c3 Qe1 c2 Nd2 b1Q Nh3 g2 Bd3 g1Q Ng5 f1Q Rh3 f2 Ngf3 b2 Nd4 Qa2 Nb1 Qgg5 Rg3 Nh6 Nc3 Qd7+ Kb6 b1Q+ Rb3 Qca3 f5 Ke5 d6 Qaa4 Qe2 Qaa1 Na2 Nf7 Qe1 Qg7 Qe2 Qbe1 Rc3 Qd2 Qe1 Qf6 Qe2 Qh1 Qe1 f1B Bg1 Kf4 e5 Bg2 e6 Rf8 e7 Bh3 e8N Qe4 Qe2 Qae1 Qh2 Qd5 Be4 Rg8 Qe2 Rg6 Qh2 Q7b5+ Kc7 Qbb4 d7 Qd3 d8R Qdd1 Nc6 Qda5+ Bb6 Qdd2 Nd4 Qd3 Rg2+ Ke3 Qe5 Rh6 Rg3+ Kf2 Rg4 Nc6 Rg3 Rb8 a8R Ba6 Bg2 Rb7+ Kc8 Nb8 Ba7 Rb6+ Kc7 Bc8 Bf3 Qba3 Be4 Rb1+ Bb6 Q3b4 Ra6 Bd7 Kb7 Bc8+ Ka8 Qdb5 Ba7 Qd7 Rac6 Qfe7 R6c4 Rb6 Ra3 Qee6 Rcc3 Qee7 Nc1 Qh4 Ra1 Qf6 Na2 Qaxa7#
n1nB1bNr/1b3qBp/B6b/R4r1N/1pn1Pb1N/1r2k2N/P7/3K2nQ w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 b3 f6 b2 Nc3 bxa1B Nb1 exf6 Qc2 f5 Qd1 f4 e4 Ke7 g4 Kf6 d4 Kg5 d6 f5 d5 c5 d7 b5 d6 c4 Na3 c3 Bb2 h3 Qf3 b4 Qg2 f3 Ba6 Kf4 g5 c2 g6 c1B g7 h2 Qg3+ Ke3 Qg2 f4 Nb5 f2+ Kd1 f1N Ke1 f3 Na3 f2+ Kd1 Ne7 g8N Bb7 Nf3 Qe8 d8N Qf7 d7 Nc8 Bb5 Na6 Nb1 Nd2 Nc3 Nc4 Ne6 Nc7 d8B Ra3 Nf4 Rb3 Ba6 Na8 Nh3 f1N Rg1 h1R Nh4 Nh2 Ne2 Nf3 Bg7 Be5 Ng3 Bf4 Nh5 Bh6 Rf1 Ng1 Rf5 Rh2 Qf1 Rf2 Ra5 Rf5 Qg2 Bb2 Qh2 Be5 Qh1 Bef4
1k3r1b/2npR1Q1/2PnP1p1/4rbnB/R3q3/2N1r2b/1B3BrR/5nRK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 e4 f5 h4 a5 b4 f4 c4 d3 h5 a4 c5 d2+ Ke2 f3+ Ke3 f2 Kf3 a3 e5 g6 c6 a2 b6 Bg7 b5 Ra3+ Qb3 d1B+ Be2 f1N h6 Qe7 b7 Kd8 h7 Kc7 Qe3 Nh6 Nh3 g1R Ng5 g2 Bb2 Na6 b8R Nf7 Qc3 Rf8 h8R Bc2 R8h2 Bf5 Ne4 Bh8 e6 Nd6 Ra8 Qh4 Rd1 Ra5 Qg7 a1R Nc3 Qe4+ Kf2 R1a4 Bh5 Ra3 Ra7+ Kb8 b6 Re5 b7 Nc7 Ra4 Rd5 Rh4 Ra5 R1h2 Re5 Rf4 Bh3 Rf7 Bf5 Re7 Rb3 Na2 Re3 Rc1 Rh1 Rd1 g1N Nc3 Nf3 Rda1 Rg1 Re1 Rg3 Rc1 Rh3 Kg2 Rg3+ Kh1 Rg2 Re1 Ng5 Rd1 Nd2 Rg1 Nf1 Rd4 Ka7 b8B+ Ka8 Ra4+ Ba6 Ba7 Bb5 Bc5+ Kb8 Bb6 Be2 Bd4 Beg4 Bc5 Bh3 Bd4 Rf3 Bf2 Re3
2bn2k1/5R1q/4q3/1RK5/1q1N1B1p/RPBb1b2/1qBRp1Pr/3Qb1nr w - - 0 1 legal: proof: d4 a5 h4 c5 e4 cxd4 h5 f5 h6 fxe4 b3 a4 Nh3 a3 Ng1 gxh6 Nd2 h5 Nc4 b5 Nb2 axb2 a4 h4 axb5 Ra3 Qg4 Ra4 Qd1 Ra8 Kd2 Kf7 c4 b1Q f4 h5 f5 e5 f6 d5 c5 h3 b6 h2 b7 e3+ Ke2 d3+ Kf3 d4 Ke4 d2+ Bd3 e2 c6 e1Q+ Qe2 d1B c7 Qb2 Bd2 Qe7 Kd5 e4 Bc2 e3 Ra6 d3 Qg4 Nh6 Qh3 Nd7 b8B Ne5 Rb6 Qe6+ Ke4 Bf3+ Kf4 e2 Ke3 Ra1 Rb5 Bb4 Bc3 d2 Kd4 d1B Qf5 Rh7 Qd3 Kg8 Qd2 Ba5 Kc5 Nhf7 Qd3 Nd8 f7+ Kh8 f8R+ Kg7 Rf7+ Kg8 Bb1 Bc2 Qd1 Bd3 Bc2 Rc1 Nh3 Rb1 Ng5 Rh6 Rg1 h1Q Rf1 Qhh4 Rh1 Qe4 Rh4 Q4g6 Ra4 Qh7 Ra3 Qh4 Qd2 Rh1 Qd1 Ba6 c8R Bab7 Bd4 Be1 Bc3 Qhg4 Rc6 Bc8 Rd6 Qb4+ Kb6 Bd5 Nf3 Rh2 Nd4 Nf3 Bc7 Ng1 Bb8 h4 Bc7 Rf6 Bb8 Rf1 Bc7 Qa5+ Kc5 Bf3 Rdd7 Nh3 Bf4 Rfh1 Rd6 Ng1 Nc6 Bde4 Rd2 Bd3 Nd4 Qb4+
N1r1Br2/B1NQ1R2/p1b2Pq1/b2N1Kp1/4P3/1n4q1/2qBk1r1/B1r3rb w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 b4 h5 Ra3 Nc6 Re3+ Nce7 Re5 f4 Rg5 Nf5 gxf5 Ne7 Rg6 Ng8 Rg4 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 c4 d5+ Ke5 a3 e4 g3 h4+ Kg4 b5 g5 b6 a6 b7 a2 b8B a1R f6 d3 h5 d2 c5 d4 c6 d3 c7 g2 h6 Ne7 h7 Ra2 Qb3 d1R Rh2 f2 Nf3 g1Q Nd4 f3 Nb5 d2 Rh5 Bd7 c8N Nf5 N1c3 Bb4 Bc4 f1B Bb2 f2 Nc7 Kf3 Bd3 Qe8+ Qe6 Ba5 Ba1 Rc1 N3d5 d1Q Ncb6 Nd4 Ba7 Rf8 h8B Bc6 Rh7 Nb3 Bb5 Rc8 Rf7 Qc2 Bg7 Bg2 Kf5 f1R Qd7 Bh1 Nba8 Qg3 Ba4 Rg1 Bh6 Rg8 Bf8 Ke2 Bb4 Rf8 Bd2 Rb2 Rg7 Qh5 Rf7 Qg6+ Ke6 Bb7 Qe8 Qc5 Bb4 Kf3 Qb5 Rf2 Bd2 Rfg2 Qe8 Qc2 Qd8 Rf2 Be8 Rfg2 Qd6 Ke2 Qd7 Qh5 Kf5 Bc6 Ne3 Qh6 Ned5 Qg6+
bKN3q1/b4Pqp/2pr4/1R2P3/qb1Qn2k/N3Nbr1/B1B5/1N1rb1B1 w - - 0 1 legal: proof: g4 a5 a4 d5 c4 dxc4 b4 axb4 d4 e5 h4 g5 d5 f5 Ra2 Na6 Rd2 Nb8 Rd4 exd4 Bf4 Nd7 Be3 Nc5 Bc1 Ne6 Nc3 fxg4 Nb1 g3 Bh3 g4 Bf1 Ng5 hxg5 Ra5 Nc3 Ra7 Nb1 Ra8 Kd2 Kf7 f4 Kg6 e4 b5 d6 g2 a5 c6 e5 b3 a6 b2 a7 g3 d7 b4 Na3 b1R Ne2 g1B Rh3 d3 Nc3 b3 Rh4 Qf6 d8N b2 Nf7 g2 Nd6 Qg7 Nf5 Nf6 Ne3 Bb7 Rh3 Re8 a8N Bb4 Nb6 Rhg8 Nc8 Rd8 Be2 Ba8 f5+ Kf7 Bf3 Rd6 Be4 Ra1 Rh1 b1Q Rh2 Qb3 g6+ Kf8 Qg4 Qa4 Bb2 Bf2 Rh1 Bg3 Rb1 g1B Bc1 Qh6 g7+ Kf7 Bf3 Qg6 Bd1 Bh4 Bc2 Be1+ Kd1 d2 Ke2 Ne4 f6 Qg5 Kf3 Qg6 Kf4 d1B Bd2 Qh6+ Kf5 Bf3 Rb2 Rd1 Ncb1 c3 Qf4 Nc5 Qd4 Ne4 Rb3 Bc5 Rb5 Bb4 Bd3 c2 Bc3 c1Q Bc2 Bc5 Bb4 Ba7 Bc5 Bgf2 Bb6 Bb4 Bc5 Qb2 Bb6 Qbb3 Bc5 Bfe1 Bb6 Rh8 g8B+ Kf8 Bc4 Rg8 f7 Rg3 Bd5 Qg7 Bc5 Qd3 Ba2 Qg8 Bb6 Kg7 Bc5 Kh6 Bb6 Rd8 Ke6 Kg5 Bc5 Kh4 Ke7 Re8+ Kd7 Rd8+ Kc7 Rd6 Bb6 Qf1 Bc5 Qh3 Bb6 Qhg4 Bc5 Bb6+ Kb8 Q4g7 Nf5+ Kh3 Qd2 Be2 Bg1 Bf3 Ne3 Kh4 Qd4 Ba7+
3r1N2/1k1p1n1n/3nq1q1/B1PpN1QN/R2qb2r/PBK1Br2/3n3B/4n3 w - - 0 1 illegal: No possible last move
3Nn3/N1qrrq2/1k1P1q1K/2n2qpn/RBbP3N/2Q5/1p1qN3/qB2B3 w - - 0 1 legal: proof: g4 a5 d4 h5 b4 hxg4 f4 axb4 a4 e5 c3 exf4 d5 Bc5 Ra3 Bd4 cxd4 d6 Rc3 Rh7 Rc4 Rh8 Rc5 dxc5 Kd2 Kd7 h4 g5 e4 b5 d6 Kc6 e5 f5 h5 c4 h6 b3 a5 f3 Ke3 c3 h7 g3 e6 c2 a6 g2 a7 b4 e7 f2 e8N f4+ Ke4 f3 Ke5 b2 Nc3 b1Q Qe1 b3 Nh3 g1Q Qe3 b2 Nd5 Qh2+ Qf4 Be6 Ba6 f1N Qg3 f2 Bd3 Na6 Nb6 Nf6 Bd2 c1Q Nf4 Bc4 Kf5 Nc5 Bb4 Qd2 Ng7 Re8 Kg6 Re7 h8B Ne8 Ne2 Rd7 Qh3 Ng3 Kh6 f1Q Nc8 Qf7 Nf5 Nh5 Nh4 Qe5 Qg3 Rb8 a8N Rb7 Be4+ Kb5 Qc3 c6 Rf1 Qc7 Na7+ Ka6 Bf6 Qbc2 Bh7 Qcf5 Bd8 Re7 Nb6 Rd7 Nd5 Re7 Ndf4 Kb6 Rb1 Qc1 Qe3 Qd7 Bg6 Na6 Nd3 c5 Qg1 Bb3 Nef4 c4 Bc5+ Ka5 Bh7 Qb6 Nb4 c3 Qe1 c2 Ne2 Bc4 Qg3 Qcf1 Ra1+ Qa4 Qb3 c1Q Bb1 Q1f5 Qh3 Qa2 Qe3 Rbd7 Nbc6+ Ka4 Ba3 Nc5 Qd2 Qb8 Ba5 Qc7 Nd8 Qc3 Qe3 Qcd3 Be1 Qd2 Qd3 Ka5 Bb4+ Kb6 Qc3 Qa4 Bd3 Qad1 Ra4 Qa1 Bb1 Qef6+
6q1/bRBb2n1/3nQ2R/1bP2rB1/1n4n1/1p4kp/PbN1R3/1q2nBKR w - - 0 1 legal: proof: f4 g5 g4 c5 e4 f5 d4 cxd4 h4 a6 h5 b6 Nc3 fxe4 Nce2 Ra7 b4 a5 f5 axb4 Nf4 gxf4 g5 b5 Qe2 Ra6 Qd1 Rg6 hxg6 Qb6 Rh4 Qa5 Rh1 Qd8 Kf2 d5 c4 Kd7 g7 Kd6 f6 Ke5 g6 h5 f7 f3 Qe1 b3 Qc3 h4 Bg5 b2 Nh3 b1Q Qe3 d3 Rh2 d4 Qd2 e3+ Kg1 b4 Bh6 b3 Rg2 e2 Nf2 e1B Qc1 h3 Rg3 d2 Bg2 d1N Rg4 d3 Rf4 d2 Kh1 Nc3 Qb2 d1N Rd4 Nc6 Rd7 Ne3 Rc7 Nf5 Bc1 Ngh6 g8R Ng7 Qd2 Nb4 Qe3+ Ne4 Bd2 Bd7 Rb7 Ng4 Bf1 Rh5 Kg1 Rf5 Nd1 e6 Qh6 Nd6 Bg5 Bc3 Ne3 Bb2 Rh8 Qc8 Nc2 f2+ Kh1 Be7 f8B Bd8 c5 Bb6 Bfe7 Qg8 Bd8 Ba7 Bc7 Ke4 Rh7 Kf3 Rh8 e5 Rh7 Nh5 g7 e4 Qe6 e3 Rh8 e2 Rh6 Qh7 g8R e1N Re8 Ng7 Bd3 f1B Kg1 Kg3 Re7 Bg2 Bf1 Bf3 Qd5 Qh8 Re2 Qg8 Qe6 Bfc6 Bg2 Qc1 Kh1 Bb5 Rb1 Qd2 Rd1 Ned3 Rg1 Ne1 Bf1+ Kf3 Ne3 Qc1 Nc2 Ne5 Kh2 Qb1 Rh1 Ng4+ Kg1 Kg3
N4qnb/5k1r/KN1BnP2/2N2bQ1/nbn1Bpp1/2P1Rb2/N1n3B1/3n4 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a3 Ra5 a4 Rf5 gxf5 b5 Ra3 Qb6 Rc3 Qd8 Rc6 h6 Rg6 h5 Rg4 hxg4 Kd2 d5 Kd3 g5 e4 g3 h4 g2 h5 b3 f6 b4 a5 f2 a6 b2 e5 g4 a7 b3 a8N Na6 e6 Rh7 h6 Nc7 e7 Kf7 Rh3 Ne6 Re3 Bg7 Nh3 g1B Nc3 b1N Na2 b2 Bg2 f1N Nf2 Bh8 Ne4 Qf8 Nc5 Na3 c3 b1B+ Qc2 Nc4 Ba3 Bb7 Bb4 Nfd2 Be4 Nb6 Ba3 Ndc4 Bg2 Qc8 Bb4 Na4 e8B+ Kf8 Bc6 Kf7 Ne4 Qb8 Bd6 Qf8 Nc5 Bf2 Ke2 Bg1 Qf5 Bf2 Qg5 Bf5 Be4 Bg1 Kd3 Bf2 Kc2 d3+ Kb3 d4 Kb4 d2 Kb5 d1N Bcd5 Bc6+ Ka6 d3 Bg2 d2 Bde4 Rg7 h7 Bd5 Rg3 Nde3 Rh3 d1N Rg3 Ke8 Rf3 Re7 Rg3 Nc2 Re3 Bg7 h8N Rd7 Ng6 Kf7 Bef3 Bh8 Ne7 Bc6 Nc8 Bg1 Be2 Bf3 Ncb6 Rb7 Bd3 Bf2 Re2 Bd4 Re3 Be5 Bb8 Bd6 Be4 Rc7 Ncd7 Bb4 Nc5 Re7 Be5 Ke8 Bc7 Rh7 Bd6 Kf7
K4bqB/BQN5/2n2q2/2p2p1r/1n1k2B1/r1rP1RB1/1pPn4/3bNNb1 w - - 0 1 legal: proof: f4 a5 b4 axb4 g4 Nh6 e4 Ng8 e5 Ra7 e6 dxe6 f5 exf5 Nh3 Ra5 Ng1 Ra8 a3 h5 g5 f6 gxf6 Ra6 Nc3 Ra5 Nb1 Ra8 a4 Na6 Ra3 Nb8 Rg3 Qd6 Rg6 Qd8 Rg4 hxg4 Kf2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 Ke5 Kb5 g5 h4 g3 a5 g4 f7 g2 h5 g3 h6 b3 a6 b2 a7 Kd4 h7 e5 Qf3 e4 Rh6 e3 Na3 b1N Rh3 e2 Nc4 e1R Be2 Nc6 Ne3 Qf6 Kb6 Nge7 Nf1 Nb4+ Qc6 Bd7 Bg4 Be8 d3 Re4 Bf4 Nd2 Kc7 b5 Qb7 Nec6 Kb6 Be7 f8B Bh5 B8h6 Bf8 Bb8 Rf4 Be2 Rh4 Bhf4 Bf3 Bfd6 Rh5 Bf4 Rg8 h8B Rg4 Bfc7 Rf4 Rh4 Re4 Rf4 Bg4 Rf3 Rf4 Nh3 g1Q Ng5 g2 Bd6 Nd5+ Ka6 b4 Bdc7 b3 Bb6 Re4 Bg3 b2 Bd1 Rb8 a8N Rc8 Ba7 Ndb4+ Kb6 Rb8 Nc7 Ra8 Bb8 Ra3 Be2 Na5+ Ka7 Rf4 Ka8 Nac6+ Ba7 Re4 Rf2 Rc3 Bf3 Re1 Be2 Ra1 Rf3 Ra2 Nh3 Raa3 Nf4 Qe3 Bd1 g1B Ng2 Qe6 Ne1 Qg8 Rf2 Bh3 Be2 Bg2 Bg4 Bh1 Ne3 Bf3 Nf1 Be2 Rf3 Bd1
2qnb2N/k4pB1/1RBNN1n1/r1b1q3/1rNq4/Qp2P3/3n1P1p/1b1B3K w - - 0 1 legal: proof: b4 c5 d4 e5 a4 b5 axb5 cxb4 h4 exd4 Qd2 g5 Qd1 gxh4 Bg5 a5 Ra3 a4 Rb3 axb3 Bf4 Ra3 Bc1 Ra8 c4 h5 g4 d5 b6 Kd7 b7 Kc6 e3 Kb6 g5 h3 g6 h2 c5+ Ka7 g7 b2 c6 d3 c7 h4 Qg4 d4 Bg2 d2+ Kf1 d1B Na3 b1N Bc6 h3 Nf3 b3 Nh4 d3 Qb4 d2 Nc4 Bd7 Bb2 Ne7 g8B Ng6 Bh7 Be8 Bg7 Bc2 Rg1 h1Q c8N+ Ka6 Qd6 h2 Qa3+ Qa5 N8d6 Ka7 Bf6 Qd5 Bg7 Qf5 Kg2 d1Q Kh1 Qd4 Rg5 Qfg4 Rb5 Nd2 Rb4 Qc8 Rb6 Na6 b8N Qae5 Nd7 Bb1 Nc5 Be7 Ba4 Nb4 Ne6 Nc6 Bb5+ Qa6 Ba4 Nd8 Bc6 Rb8 Nb7 Bc5 Nbd6 Ne7 Bg6 Rh5 Bc2 Ng6 Bd1 Rf5 Qb2 Qc8 Qc1 Nf4 Ng6 Rb7 Nh8 Ng6 Rb4 Rb5 Qa3+ Ra5 Rb8 Rf4 Rb6 Qd3 Nb2 Rb4 Nbc4 Qdd4
2r1NKb1/rP6/B4Ppk/2q1n1nN/1p5N/NQbp1R2/q7/2R1rqbR w - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g3 cxd4 g4 hxg4 a4 b6 a5 bxa5 b4 Nh6 b5 Ng8 Ba3 Rh4 Bc5 Rh8 Bb4 axb4 Kd2 Kf7 Kd3 d5 f4 e5 h4 a5 c4 g6 h5 Kg7 f6+ Kh6 b6 a4 b7 g3 f7 g2 f5 a3 c5 a2 c6 Qa5 c7 Nc6 Qb3 Ra7 Nf3 g1B Na3 Be6 c8N Qc5 Nh4 Nf6 Rc1 a1Q Nd6 Nh7 Ne8 Bg7 f8N Ng5 Nh7 Bg8 Nhf6 Qa2 Rh3 Qa1 Rf3 e4+ Kd2 Qb1 Ba6 e3+ Ke2 Qa2+ Kd3 e2 Rf4 Ne4 Rf3 Kg5 h6 e1R h7 Kh6 Nh5 Ng5 Qc4 Be5 f6 Bf4 Nb5 Bd2 Na3 Bc3 Qb3 Be6 Nd6 Rc8 Ne8 Bg8 h8R+ Bh7 Qb2 Ne5+ Kc2 Qb1+ Kb3 d3 Ka4 d4 Qb3 Qf8 Kb5 d2 Kb6 d1Q Kb5 Qa2 Kb6 Rd8 Kc7 d3 Nhg7 Qde2 Ng2 Nc4 Kc6 Qf1 Kc7 Rc8+ Kd7 Rc6 Kd8 Qc5 Kd7 Ne5+ Kd8 Qb6+ Ke7 Rc8 Kf8 Qc7 Nf5+ Kh5 Nf4+ Kg4 Nb5 Qca5 Na3 Bg8 Rh1 Qb6 Nh4 Qc7 Nfg2 Kh5 Nf4+ Kh6 Nh5 Qc5+
3rb3/p2rr3/r3R3/1PN1N1Q1/qn2prbR/BP2pN2/k3n2N/2n1RK2 w - - 0 1 legal: proof: h4 c5 e4 g5 d4 cxd4 a3 gxh4 e5 b5 e6 Bh6 Bc4 Bd2+ Ke2 fxe6 Bb3 e5 Ba4 Bb4 axb4 bxa4 Ke1 e4 g4 Kf7 c4 Ke6 f4 d5 g5 h5 c5 e3 g6 h3 b5 h2 c6 h4 c7 a3 g7 a2 Na3 d3 Qb3 h3 Rb1 a1R Nc4 d4 f5+ Kd5 f6 e5 f7 e4 f8N d2+ Kf1 d1R+ Ke2 Bd7 c8N Nc6 Qc3 Ra6 Na5 Nb4 Bd2 Rh7 Nf3 Nf6 g8R Ng4 Rh8 Re7 Nb3 Be8 Na1 Ne5 Rh7 Ned3 Nc2 Qa5 Rh6 Qa4 Nce1 Nc1+ Kf1 d3 Qf6 Kc4 Ng6 Kb3 Nge5 Ka2 Nb6 Rd8 b3 Rdd7 Bc3 d2 Bb2 Rd8 Rh4 Rdd7 Rg1 h1N Ba3 h2 Qg5 Rd8 Nbd7 Ng3+ Kg2 h1R Nh2 Nge2 Nc5 Rdd7 Rf1 Rd8 Rf6 Rf1 Re6 Rff7 N1f3 Rf1 Ng1 R1f4 Ngf3 d1B Kf1 Red7 Rb2+ Ka1 Rd2 Rfe7 Rd5 Ka2 Rd3 Bc2 Rd1 Bd3 Re1 Bc4 Rg6 Be6 Rgh6 Bf5 Re6 Bg4
2B5/5n2/1QNqRNN1/3Pqn2/k4r1r/Pbp1p1q1/2qp1BB1/2r1b1KN w - - 0 1 legal: proof: h4 a5 e4 d5 d4 f5 b4 axb4 a3 g5 c3 gxh4 Ra2 Nf6 Rd2 Ng8 c4 dxc4 Rd3 cxd3 exf5 Ra4 Nd2 Ra6 Nb1 Ra8 g4 Kd7 f4 Kc6 Kf2 Kb5 g5 e5 g6 c5 g7 h5 f6 b3 f7 b2 f5 e4 f6 h3 Qe2 c4 Qf3 h2 Bh3 e3+ Kg2 h4 Kf1 Nc6 Bf5 h3 Bd7 Ra4 Qd1 Bb4 f8N Ne7 g8B Nf5 Nd2 b1R Bde6 Qd6 f7 Ne5 Bd5 Be6 Ne2 b6 Rg1 h1Q Nb3 h2 Bd2 Rh4 Be1 Qf3+ Bf2 h1Q Nd7 Qh2 f8N Be1 Na5 d2 Ng3 c3 Nh1 Qff4 Qc2 Rc1 Rg6 Qhg3 Nc6 Rc4 Qe4 Ka4 Qb1 b5 Bg2 b4 Kg1 b3 Qb2 Bd5 Be6 Nf7 Rf6 Rb4 Ng6 Qfe5 Qb1 Bc4 d5 b2 Ndf8 Qf3 Bc8 Qfg3 Nh7 Ba2 Re6 Rbf4 Nf6 Bc4 Qa1 b1Q Qb2 Qc2 Qb6 Bb3
3B2qq/n1Bb2rb/1n1q3P/2Np4/1N4Q1/p1P1N3/1n1K1pr1/1knR1B1B w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 f5 cxd4 f6 exf6 g3 f5 Ra2 f4 Kd2 f3 Ra1 f2 b4 h5 Na3 f5 Nb1 f4 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 e4 Kf7 h4 Ke6 f5+ Ke5 f6 d5 h5 a5 f7 g5 f8B d3 b5 Kd4 e5 g3 h6 a3 b6 g2 b7 g4 e6 a4 e7 g3 e8B a2 Bb4 a1Q Bf7 a3 Bf8 Rh7 Qe1 Nc6 b8N Na7 Qe2 Rg7 Be8 Nf6 Bc6 Qd6 Bb5 Bd7 Kd1 d2 Nh3 g1N Be7 g2 Na6 Rag8 Nc3 Qb2 Qe6 Ne2 Nb4 g1Q Nf4 Qg6 Bg2 f1B Ne4 f2 Nc5 Kc3 Bf3 Bh3 Bc4 Bf5 Bd8 Qg3 Rf1 Bh7 Bh1 Qg1 Re1 Rg2 Qg4 Rg7 Nbd3 Qbb8 Nb4 Qa8 Bc7 Qh8 Bd8 Bb5 Bd3 Nd7 Rf1 Nb6 Bc7 Rg3 Ng2 Bd7 Ne3 Rg2 Bd8 Nf4 Bb5 Nd3 Ke2 d1N Bd2+ Kb2 c3 Be6 Bc1+ Kb1 Kd2 N1b2 Rd1 Bd7 Bc4 Nf4 Bf1 Ne2 Qe6 R7g5 Nc4 R2g4 Ke3 Qdf8 Bc7 Qfg8 Bd8 Rg2 Qg4 Qh2 Bc7 N2a4 Bd8 Rg6 Kd3 Qc7 Bf4+ Nc1+ Kd2 Nb2 Ne3 Rg7 Bd6 Qc6 B6c7 Qd6
1rRQb3/bb1n1kN1/RrRp3R/1q6/1P1P1N2/3p1p2/Kb2Nn2/1B1q2r1 w - - 0 1 legal: proof: d4 c5 e4 b5 h4 g5 a4 gxh4 axb5 e5 f4 exf4 Bd2 c4 Be3 fxe3 Qd3 cxd3 Kd1 h5 Kc1 a5 c4 f5 g4 f4 b4 h3 Kb2 a4 c5 e2 b6 e1R e5 a3+ Kb3 h2 c6 a2 b7 h4 e6 h3 c7 Nh6 e7 Ra6 g5 Ng4 g6 Rb6 g7 Kf7 g8R Nf2 e8N Bc5 Nc3 d6 Be2 Qd7 Bd1 Qb5 Nce2 Bd7 Ng7 Be8 c8R Nd7 b8Q Rf1 Rc1 a1B Bc2 Bb2 Ka2 Rd1 Bb1 Re1 Nc3 Rd1 Nge2 Rf1 Rg1 h1B Nd5 h2 Rg6 Rg1 Rh6 Be4 Rc3 f3 Ndf4 h1Q Ra3 Bb7 Ra6 Rg4 Rc6 Qd1 Qd8 Rg1 Ra4 Ra6 Ra3 Ba7 Ra5 Rb6 Ra3 Qf1 Ra6 Qd1 Qc7 Qf5 Ngh5 Qb5 Rgg6 Rf8 Re6 Rfg8 Ng7 Rf8 Rc3 Rg8 Re5 Kf8 Rec5 Bh5 Rc2 Ke7 R5c3 Rb8 Qd8+ Kf7 Rc8 Bg6 Ne8 Kg8 Ng7+ Be8 R2c6 Kf7
RB1nn1B1/3b1P1P/B1n3Rb/1r1p1N1k/7q/pRQprq2/4R3/1n3rK1 w - - 0 1 legal: proof: e4 b5 d4 h5 g4 hxg4 a4 c5 axb5 cxd4 e5 d3 e6 fxe6 Nc3 e5 Nce2 Rh7 Nd4 exd4 Be3 Rh4 Bc1 Rh8 f4 Kf7 Kf2 Kg6 c4 e5 h4 a5 b4 d5 c5 g3+ Kg2 d2 c6 d3 b6 a4 c7 e4 b7 e3 b5 e2 f5+ Kh5 f6 g5 b6 a3 f7 g4 Bb2 e1R Be5 Nc6 b8R Nf6 b7 Bd7 c8B Ne8 Qb3 d1N Rh2 Nc3 Ne2 Nb1 Kg1 g2 Nd4 Re3 Qc3 Bh6 Nf5 Ra5 Ra8 Rb5 b8R Qg5 Rb6 Nd8 Bb8 Qf4 Ba6 Qf3 Ra2 Rg8 Rh3 Rg6 Rg3 Rf6 Kh2 g1N Bg2 Ne2 Bh1 Nc1 Kg1 Nb3 Re2 Nd4 Rgg2 g3 Rb7 Kg4 h5 N4c6 Rb6 Bf4 h6 Kh5 Rb2 Bg5 Rge2 Bf4 Bg2 Bg5 Bh3 g2 Rb3 Bf4 Nd6 Bg5 Bf5 Bf4 Bh7 Bg5 Bg8 Bf4 h7 Bh6 Nc8 Rf5 Bg3 Rf4 Ne7 Rf5 Kh2 g1Q+ Kh3 Nb4 Rc8 Qe1 Kh2 Qe4 Rg6 Nbc6 Ra8 Rff3 Bf4 Qh4+ Kg1 Rf2 Bb8 Qf3 Nf5 Rf1#
q7/N2rnp2/n4B1k/N1Br4/2Bq1Rbq/2P2Pr1/pp2b3/1B1rNQ1K w - - 0 1 legal: proof: e4 c5 b4 cxb4 a4 g5 a5 d5 a6 dxe4 Nf3 g4 Na3 g3 Ng1 bxa6 Nb1 a5 Qe2 a4 Qh5 Nh6 Qd1 Ng8 f3 Nh6 Ra3 Ng8 Rd3 Qd7 Re3 Qd8 Re2 Qd3 Rf2 Qd8 Ke2 gxf2 h4 Qd5 g4 Qc6 g5 Bh6 g6 Bg5 hxg5 Qd6 Qe1 Qc7 Qd1 Qd8 d4 Kf8 c3 Kg7 d5 e5 d6 a5 d7 h5 Rh3 h4 Qd6 e3 Bd2 b3 Qb4 a3 Qb6 b2 Rh1 e4 Nh3 a4 Qb5 a2 Nf4 a1Q Ng2 a3 Ne1 h3 Rh2 a2 Na3 Ra7 Nc4 Ne7 Na5 Rg8 Bc1 Qf8 d8B Bg4 Bb6 Rd7 Bc5 Na6 Rh1 Kh8 g7+ Kh7 g6+ Kh6 Qc4 h2 Qd3 Rh8 g8B Qa8 Bh7 Rhd8 g7 Rg8 Rg1 h1Q Rg2 Qh4 Rh2 Qh5 Rh4 Qb1 Qd1 Qc2+ Bd2 Qa4 Qc1 Qd4 Qd1 Bf5 Rf4 Bg4 Qa1 Rgd8 Qb1 Qh4 g8N+ Kh5 Bf5 Rd5 Bc1 R8d7 Qd3 Nc8 Ne7 Kh6 Nec6 Ne7 Kd1 e2+ Kd2 Qdf6 Ke3 Qfh8 Na7 Qhd8 Ng2 e1R+ Qe2 Red1 Ne1 Qb6 Qb5 Qbf6 Bc4 Qd4+ Ke2 e3 Kf1 e2+ Kg2 Qc8 Be3 Qa8 Bb1 f1B+ Kg1 Qe5 Bed4 Qg7 Nc2 e1R Bf6 Be2+ Kg2 Rh1 Ne1 Rh3 Kg1 Qhg5 Kg2 Rg3+ Kh1 Qgh8 Qb8 Qd8 Qe5 Qb6 Qd4 Qd6 Qg1 Qde5 Qg2 Qd4 Qf1 Qh4+
1N3r1N/bq1PN3/1p1kp1RQ/1B4p1/R1R4b/2r2b1n/2qP2nK/1n1n1R2 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 f5 g4 fxe4 Bb2 h6 Bf6 gxf4 g5 Kf7 g6+ Ke8 Bg5 hxg5 Kf2 Kd7 Kg2 c5 a4 e3 h4 c4 g7 e6 a5 c3 a6 f3+ Kh3 f2 h5 c2 a7 c1Q d6 b3 h6 b2 h7 e2 Qb3 e1B Kg3 Nf6 g8N Qb6 Ra6 Ng4 Nf3 Nc6 Nd4 Na5 Nc6 Qc2 Na3 b1N Bb5 Nc4 Nge7 Nce3 Ra4 Ng2 Rc4 f1N+ Kh3 Rg8 h8R Bh4 Rh6 Nfe3 Rg6 Nd1 Rf1 Ngf2+ Kh2 Nh3 Qc3 Rb8 a8R Bg7 Qd3 Bd4 Raa4 Rf8 Qe2 Qc7 Qh5 Ba7 Qh7 b6 Qh6 Ra8 Nb8+ Kd8 Ra5 Qb7 d7 Rf3 Raa4 Rc3 Rg4 Kc7 Nc4 Qbe4 Ne5 Kd6 Rc4 Bb7 Ra4 Qc6 Rgc4 Qc7 Rab4 Bf3 Ra4 Qc6 Nf7+ Kc7 Rg4 Qb7 Nh8 Kd6 Rgb4 Kc7 Rc4+ Kd6 Nbc6 Rg8 Nb8 Rf8
6kN/1B1P1pnq/3nq1rB/r3P3/rnR3RB/Q4b1K/1r1p1R1p/3R1b2 w - - 0 1 legal: proof: d4 b5 h4 d5 a4 bxa4 c4 dxc4 h5 e5 h6 gxh6 Ra3 h5 Ra1 h4 f4 Be7 e4 Bg4 d5 Bd6 Nd2 Na6 Ndf3 Qe7 Nd4 exd4 e5 Bc8 e6 Be5 fxe5 Nb8 Qd3 Qf6 Qd1 Qd8 Kf2 Kf8 b4 a5 g4 h5 Kg2 c5 b5 c3 g5 h3+ Kg3 c4 d6 c2 d7 h2 g6 h4+ Kh3 c3 b6 a3 b7 a2 Be2 a4 Qd3 a3 Bd2 c1R Be3 c2 Qb3 d3 Qb4+ Ne7 g7+ Kg8 Rb1 a1N Bh6 d2 Bg5 a2 Ba6 Qb6 Qe4 Rh6 Qg2 Nbc6 b8B Na7 Rb3 Rb1 Bd6 c1Q Ne2 Nf5 e7 Qc2 Bb4 Qe6 Qf3 Nb5 Nf4 Nbd6 Ng6 Rb2 Rd1 h1B Bb7 Ra4 Nh8 Rg6 Bh6 Ra5 Qc3 Bf3 Bc5 Qb1 Bf2 Nc2 Rb6 a1R Qa3 Nb4 e8R+ Kh7 g8R Ng7+ Kh2 h3 Bh4 Qe4 Rc6 Qc2 Rc4 Raa2 Rg4 Qd3 Kg3 h2 Kh3 Qdf5 Ba6 Bcb7 Rc8 Be2 Rcc1 Bbf3 Bb7 Bb5 Rc4 Ba6 Qc3 R2a4 Qa3 Qc2 Rf1 Qb1 Rf2 Qe4 Ra8 Bb5 Ra6 Kg8 Rac6 Q4f5 Rc1 Qe4 R6c4 Q4f5 Rd1 Qh5 Bf4 Qh7 Bh6 Ba6 Rc3 Bd3 Rc4 Bf1+
1B1r1Rn1/2K1qn2/2N1pbBr/4rp2/nPB2Pr1/2RR4/bQ1pk2n/7R w - - 0 1 legal: proof: b4 c5 h3 g5 a3 b5 h4 cxb4 Nf3 b3 Ng1 b4 axb4 Bg7 Ra2 Bh6 Ra1 Bf8 e4 gxh4 d3 d5 d4 dxe4 Nd2 Ba6 Ndf3 Bb7 Ne5 Bc8 Nd3 exd3 Kd2 Kd7 Ke3 Ke6 Ke4 a5 c4 f5+ Kf4 h5 g4 b2 c5 Kd5 g5 Kc4 Ke5 b1N f4 a4 d5 h3 d6 h4 d7 h2 g6 h3 c6 a3 c7 a2 g7 Rh4 Be2 Rg4 Bd2 Nc6+ Ke6 Ne5 Qa4 Nf7 Be3 Nc3 Qd1 Na4 Bf3 d2 Ne2 Kd3 Rc1 a1R Ba7 Ba6 c8R Bc4+ Bd5 Ba2 Nd4 Qc7 Re8 Rd8 Qc2+ Ke3 Nc6+ Ke2 Qb3 Qb7 Rc4 Re1 Bb8 Qa7 Rc3 Qc7 Rg1 h1N Qb2 Ng3 Rh1 h2 Bb3 Nf1 Bd5 Nf6 g8B Bg7 Bh7 Ng8 Rf8 Bf6 Bg6 Qb7 Rg1 h1R Bc4+ Kd1+ Kd5 Rh6 Rh1 Qc7 Qa3 Nh2 Qb2 Nb6+ Kc5 e6 Kb5 Na4 Ka6 Rc8 d8R Qe7 Rdd3 Ke2 Kb5 Rd8 Ka6 Kf2 Kb5 Re5+ Ka6 Qe8 Kb7 Ke2 Kc7 Qe7+
B3Q2n/2RN4/k3rR1r/rnP3p1/p2K2RN/P2RN3/1brp3q/r5nq w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 c5 hxg4 c6 bxc6 Kf2 c5 Ke1 c4 Bg2 c3 Bh3 Rh4 Bf1 Rh8 d3 c5 b3 c4 Nf3 Ba6 Bb2 cxb2 Ng1 c3 Bg2 Rh3 Bf1 Bc4 dxc4 Rh8 Kf2 g5 e4 f5 h4 d5 a3 Kd7 h5 Kc6 c5 Kb7 b4 a5 h6 g3+ Kf3 a4 b5 c2 h7 c1R b6 g2 e5 d4 e6 d3 e7 d2 e8R Na6 Rh4 Nb4 Nh3 g1N+ Kf2 f3 Ke3 f4+ Ke4 f2 Qe2 f3 Qe3 Na2 Re7+ Qc7 Nc3 b1R Rg4 Nh6 Kd4 Ra5 Nf4 Nf7 Nd1 Nc3 Ng6 Rc2 Bg2 f1Q Nh4 Ka6 b7 Qh2 Rc7 f2 Qe8 Rb6 Ne3 Re6 Bf3 Qfg2 Rf1 Qgh1 Be4 Rg8 h8R Rgg6 Rh7 Nh8 Rhd7 Rh6 b8N+ Kb5 Rd1 f1R Ba8 Bd6 Re1 Be7 Re2 Ra1 Rf2 Bf8 Rf6 Bg7 Nc6 Ka6 Ne5 Bf8 Rd5 Bd6 Nd7 Be5+ Kc4 Na2+ Kd3 Bb2 Rdd4 Nc3 Kc4 Ng6 Rd3 Nh8 Kd4 Nb5#
R3QB2/1n1BKpr1/1r2b3/q2qpR2/B1P4r/1b6/pr1N2RP/k2q2bB w - - 0 1 illegal: No proof kernel
B1b1Rq1r/KbB4q/2BR1R1N/2QB4/qq3r2/P2bp2p/4Pkp1/b6n w - - 0 1 legal: proof: g4 a5 b4 axb4 d4 c5 g5 cxd4 a3 b3 g6 fxg6 Qd2 g5 Qd1 g4 h3 g5 Kd2 g3 Ke1 Nc6 Nc3 Ne5 Na2 bxa2 h4 g4 Kd2 Nf7 Ke1 Ng5 hxg5 Ra4 Qd3 Ra6 Qd1 Ra8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 Kc5 Ke4 c4 d5 f4 h5 f5 e5+ Kb5 d3 f6 g2 c5 h4 c6 h3 f7 d4 g6 g3 c7 d2 Kb6 Ke3 g7 d3 Rh2 e4 Qc2 Ne7 g8B Bg7 f8R Ra4 Bb2 d1Q Nf3 g1Q Bf6 d2 Bh7 Nf5 Rf7 Qf8 Rc1 a1Q Qc6 Qb1+ Qb5 Qbb4 Bd8 Ba1 Rh1 Kf2 Ne5 e3 Bg2 Qh2 Be4 g2 Bg8 Qf4 Rc5 Q4h6+ Bc6 Qh7 Rf6 Qdb3 Bf7 d1B Bfd5 Bc2 Rd1 Be4 Nf7 Bf3 Rd3 Ng3 Nh6 Nh1 Rc4 Qbe7 Rh4 Rf4 Ka7 Qeb4 Qc5 b5 Rh5 Qc2 Re5 Qcb3 Re8 Q4a4+ Kb6 b4 Ba8 Be4 Bdc6 Qc3 Rdd6 b3 Bd5 b2 Bac6 Bg4 c8B b1B Bc7 Bbd3 B8b7 Bc8 Ba8 Bf3 Qa5 Qcb4+ Ka7 Bda6 Qb6 Be4 Qd4 Bed3 Qc5 Bab7+
rkB2qQ1/qrR1N3/n1nB1pN1/nrB3N1/5NP1/3K1nP1/1b2p2p/6r1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 f4 fxe4 f5 a5 f6 axb4 Bg5 Kf7 Be3 Ke6 f7 Kd5 Bc1 Kc6 a4 b6 h3 Ba6 Ra3 Bc4 Rf3 Be2 Rf2 Bg4 Rf6+ gxf6 hxg4 Bh6 Ba3 Bg7 Bc1 Bf8 Ke2 Kc7 c4 h5 a5 d5 a6 e5 c5 b5 g3 h4 a7 e3 c6 h3 Kd3 h2 Qa4 e4+ Kc2 d3+ Kb2 d4 Qa3 d2 Kc2 d1N Qb3 e2 Qc3 e1N+ Kd2 e3+ Ke2 b3 Nd2 b2 Qc4 b1Q Ne4 b4 Nd2 b3 Nh3 b2 Qe6 Ba3 f8B Qa2 Ng5 b1R Bc5 Nb2 Nc4 Rh5 Ne5 Na6 Ng6 Ne7 Qg8 Nc4+ Bd2 Bb2 Bdb4 Nf3 Kd3 Kc8 c7 Na5 Bg2 e2 Rc1 Kb7 c8N Nec6 Nce7 Qf8 Bd6 Rh7 Bbc5 Rg7 Nd5 Kc8 Ndf4 Rb7 Rc2 Bc1 Rc4 R1b5 Rc3 Bb2 Bh1 Rab8 a8N Qf7 Nc7 Ra8 Bg2 Kb8 Ncd5+ Qc7 Ke4 d3 Nde7 d2 Kd3 Ng1 Be4 Nf3 Bf5 d1R+ Ke3 Rd5 Bc8 Rd1 Rc4 Rh1 Kd3 Rg1 Nf5 Ncd4 Bb4 R7b6 Rc6 Rh1 Bbc5 Rg1 Be7 Qa7 Rc7 Ndc6 Bed6 Rb7 Nfe7 Bc1 Nf7 Ba3 Ng5 Bb2
1r3BR1/Rq1q3Q/qPN2K2/1B1P1p2/R1pp2r1/1b1r1n2/n3q2B/2krR3 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 g6 hxg6 Qc2 g5 Qd1 g4 f4 Bb4+ Nd2 Kd7 e4 Rh5 d5 Bd6 Ndf3 Qe8 Nd4 exd4 e5 Qd8 e6+ Ke8 Nh3 Rh8 Ng1 Be5 fxe5 Rh5 Qc2 Rh4 Qd1 Rh8 Kf2 Ke7 Kg3 g5 b4 f5 h4 a5 h5 c5 b5 a3 b6 a2 h6 c3 h7 c4 Qd2 a4 Qh2 a3 Bh3 c2 Bg2 Nf6 Rb1 a1R Rb4 a2 Ne2 Bd7 Qh3 Ba4 Qh2 Qd7 Ng1 Nc6 Qh6 Ne4+ Kh2 g3+ Kh3 g4+ Kh4 Rab8 Bd2 c1Q Bc3 Qe3 Nf3 Bb3 Ra4 Ng5 Re1 Nb4 Kh5 Rhg8 h8B Qe2 Qh7+ Rg7 Bb2 Rd1 Ba3 a1Q Bh3 g2 Kh6 g3 Bg4 g1R Bh5 g2 Be8 Qd6 Bb5 Na2 Kh5 Rd3 Ra7+ Kf8 e7+ Kf7 e8R+ Qd7 e6+ Kf6 e7 Rf1 Ra4 g1Q Rg8 Qge3 e8R Qee7 Kh6 Qf7 Ne5 Nf3 Bf8 Rg1 Rb1 Rgd1 Nc6 Qb7 Rc8 Qfe6 Rc7 Qd7 Nb4 Ke5 Nc6+ Kf4 Kh5 Rdg1 Re1 R7g4 Be5+ Ke3 Bh2 Kd2 Kh6 Qbc8 Rca7 Qcb7 Rb1 Rd1 Kh5 Re4 Kg6 Rg4+ Kf6 Kc2 Rb2+ Kc1 Rd2 Qg2 Re2 Qf1 Re1 Qe2 Qh5 Qc3 Qf7 Qa5 Qh7 Qaa6
2n3n1/nPp1B1B1/1Bb5/NR1p2R1/qp2rQ2/kPr5/rq2R1r1/n1RK4 w - - 0 1 legal: proof: c4 b5 e4 g5 h4 gxh4 d4 e6 e5 d5 a4 Bc5 a5 Bb6 Bd3 f5 Be4 fxe4 axb6 Bd7 Nc3 dxc4 d5 Bc8 d6 Qg5 Nd5 exd5 Qc2 Qf6 Qd1 Qd8 g4 Kd7 f4 Kc6 b7 Kc5 f5 Kb4 f6 a5 d7 h5 b3 c3 g5 h3 f7 e3 f8B+ Ne7 g6 h2 g7 e2 g8R h4 e6 c2 Nf3 h3 Bch6 c1R Kd2 e1R Bfg7 a4 Bf4 a3 Bg5 a2 Rb1 a1N Bf4 Ra2+ Qc2 Nbc6 Bf8 Ka3 Rg2 Rg8 Ne5 Na7 Nc6 Qe8 d8B b4 Na5 Bd7 Be3 Nec8 e7 Rg6 Rhg1 h1Q Bb6 h2 Bg7 Re3 Rb2 Rg5 Re2 Rg2 Qg6 Re6 Qg5 Re4 Qf4 Rc5 Rd1 Qg1 Rf1 h1N Rc2 Ng3 Ke1 Rc6 Rc5 Qd4 Rg1 Nf5 Rh1 Qh5 e8R Nh6 Re5 Qb2 Rg5 Ng8 Be7 Qh3 Rg1 Qd3 Rh1 Qb5 Rf1 Qa4 Rb5 Rc3 Rh1 Nc2+ Kd2 Bc6 Rc1 Na1+ Ke1 Qb1 Kd1 Qb2
2n1N2r/2p1N2r/2r1Bnb1/1k1B4/1pp2Rb1/1Pp1rP1K/N1n1qQ2/2N4B w - - 0 1 illegal: No proof kernel
Rq4NB/2N3pB/2n2N1b/3P1Bp1/q1kp3Q/rr2pq2/qb3P2/4n1KB w - - 0 1 illegal: No proof kernel
3r1n2/K2B3N/q4r1p/k2NP1q1/1pRp1N1P/2R2Qp1/1bq3r1/1bR2bR1 w - - 0 1 legal: proof: e4 e5 c4 f5 d4 exd4 g4 f4 g5 Nc6 Be3 fxe3 b4 Nce7 b5 Nd5 f4 Ndf6 b6 axb6 gxf6 b5 f5 bxc4 Qg4 c3 Qf3 Ra4 Qd1 Ra8 Ke2 d5 Kd3 Kd7 h4 Kc6 a4 Kb6 e5 g5 f7 c5 f6 e2 Qc2 e1Q Qd2 g4 Qf2 g3 Rh2 c2 Na3 c1Q Nh3 h6 Ng1 Bh3 Ne2 Ka5 Nf4 b5 Qe2 Ne7 Rg2 Ra6 Qf3 Ng6 Nc2 b4 Be2 Qf1 Rg1 Qb2 Rc1 c4+ Kd2 c3+ Kd3 Re6 Ne3 Bc5 f8R c2 f7 Qg5 Rc8 Rd8 f8N Rf6 Nh7 Nf8 Rc7 Ba7 Rc3 Qa2 Qe4 Qg2 Bg4 Qf2 Bd7 Bf1+ Ne2 Qff5 Rc4 Qe6 Qf5 Qa6 Qf3 Bg2 Nf4 Bf1+ Kd2 d3 Rc3 Bd4 Rc4 Kb6 a5+ Kb7 Rc3 Qa4 Rc4 Bb2 Rc3 Q4c6 Rc4 d4 Ned5 Qab5 Rc3 Ka6 Rc4 Qa4 Rc3 Kb5 a6 Ka5 a7 Qa6 a8R Qb3 Rac8 Qa4 Rd1 c1R R8c4 Ra1 Rb1 Ra2 Rbc1 Q4c6 Kd1 d2 Kc2 Bh3 Kd3 d1B Ke4 Qa4 Nc7 Bb3 Kd5 Bc2 Kc5 Bb1 Ncd5 Qc2 Qf1 Rf7 Qe2 Bf1 Qf3 Qa7+ Kc6 Qa6+ Kc7 Qe6 Kb7 Rf6 Ka7 Qd6 Rc8 Qa6+ Kb8 Ba3 Bb5 Qcf5 Be8 Rg2 Bd7 Qe2 Ka7 Qfc2 R8c6 Bb2 Rc7 Qb5 R7c4 Qa6#
5Rrb/BN3Bpk/K1qpQ2P/2rP4/br1qb3/2ppn3/5Rb1/B2B1R2 w - - 0 1 illegal: Other
2N3Br/1b3nK1/Bp4pR/p2Pnn1p/4Q2q/1k2nq1P/Nb4Bp/3NB3 w - - 0 1 legal: proof: e4 c5 b4 cxb4 Nc3 d5 Nb1 dxe4 a4 b6 a5 Nd7 a6 Rb8 Ra3 Rb7 axb7 a5 Ra1 Nb8 h3 g5 Qh5 g4 Qg5 Qd7 Qe5 Qd8 Qh2 g3 Ke2 gxh2 Kd1 Kd7 Ke1 Ke8 g4 Qd3 g5 Qb5 g6 Qd3 g7 Qd7 Ra3 Qd6 Rg3 Qd8 Rg6 fxg6 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 h5 c4+ Kc5 f4 e3 d4+ Kc6 f5 e5+ f6 e4 d5+ Kc5 Nc3 b3 Bg2 Kb4 c5 b2 c6 b1Q c7 e2 Bd2 e1N Na2+ Kc4 Ne2 e3 Rf1 Bf5 c8B Nc6 b8N Nc2 Ba6+ Kb3 Nec3 e2 Nd1 Ne5 Be1 Nd4 Nc6 Nh6 g8B Qe4 Na7 Ba3 Nc8 Bb2 Rf4 Qf8 f7 Be6 Kf6 Ndf5 Rf2 Qf3 Rf1 Qb4 f8Q Nhf7 Qe7 Bd7 Qe8 Bc6 Qe6 Bb7 Qe7 N5d6+ Kg7 Qbg4 Qh4 Qg5 Qe4 Qh4 Bg3 e1N Bf2 Nc2 Be1 Qe7 Rf2 Ne3 Rc2 Qd7 Rc7 Qd8 Rd7 Qdf6+ Kf8 Ndf5 Re7 Qg5 Rc7 Nd8 Rh7 Ndf7 Rh6 Ng3 Kg7 Qgg4 Qb1 Qh4 Qe4 Ngf5+
1QR2n2/b1r2R2/1p1B2p1/1nB1N1K1/2qp4/p1rPr2P/2kBBppR/6n1 w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 h5 a4 hxg4 b5 b6 a5 bxa5 b6 a4 c4 Rh3 b7 Re3 c5 Qf6 c6 Qd8 Nc3 Rh3 Nd5 Rh7 Nb6 Na6 b8B Bb7 cxb7 axb6 Qb3 Rh6 Qd1 Rh8 Kf2 Ke7 e4 Ke6 h3 Ke5 d3 Kd4 e5 Kc3 e6 c5 e7 d5 e8R f5 Bd6 a3 b8B c4 Qe2 f3 Ke3 g3 Kf4 d4 Qe1+ Kc2 Bg2 g6 Re5 c3 Bb2 f2 Bc1 f1R+ Bf3 g2 Re3 Qc8 Bd2 Rh7 Bc1 Qc4 Bb4 Nc7 Ne2 Nf6 Ba5 Bd6+ Kg5 f4 Ng1 Nd7 Re6 Nb5 Rh2 Nf8 Be2 f3 Rf6 f2 Bb4 Rc7 Nf3 Raa7 Rb1 Rc5+ Ne5 Rac7 Bd2 Rh1 Bg4 Rg1 Qe2 Re1 Rf7 R5c6 Qf3 Re3 Qf4 Rb7 Rb3 Qd5 Bf5 Kd1 Be6 c2 Rc3 c1N Bg4+ Ne2 Rc4 Qe6 Nf3 Ng1 Rc5 Qb3 Qe5 Qc3 Qe8 Ra7 Ne5+ Kc2 Be2 Rc8 Rd5 Rc4 Bc5 Qb3 Qc8 Rc3 Qb7 Bc7 Rd8 Qc4 Rc8 Bd6 Qa8 Rb7 Bc7 Ra7 Bd8 Rd7 Be7 Bb8 Bed6 Ba7 Qb8 Rc7
2N4b/b2QRR2/qq2Kn2/6bp/1r2n2P/P1Bb1kn1/R1rn1brR/N6N w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 d5 Bd3 dxc4 Be2 g6 Bg4 fxe4 f5 Ra7 f6 Ra8 Bf5 gxf5 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 g4 b5 d4 e5+ Kg5 c5 h4 h5 a3 f4 Bd2 e3 Kg6 Ke4 Kf7 b3 d5 e2 d6 e1Q g5 c3 d7 b2 g6 f3 g7 f2 Bh6 f1N Qb3 c2 Bc1 b4 Nh3 c4 Bd2 c1B Bc3 Ng3 Ke6 Kf3 f7 e4 Qa4 e3 Ra2 b3 Qa5 e2 Rg1 Ba6 Nf2 Qf1 Rg2 e1B Ra1 Bg5 Ng4 Nc6 Rh2 Bf2 Be1 c3 Rh1 c2 Qe5 c1B Nc3 b1R Nd5 b2 Bd2 B8c5 f8R+ Nf6 g8N Rc8 Qd4 Qb6 d8R Bd3 Nge7 Rg8 Nb4 Ne5+ Qd6 Rg7 Nc2 Nf7 Ra2 Bcd4 Ba5 Bce3 Na1 Rc2 Rh2 Rg8 Rde8 Be5 Nd5 Qe2 Qc6 Nd6 Re7 Bg6 Nb3 Qd4 Rb8 Nh1 Rbe8 Bfg3 Ra8 Nfe4 Bb6 Bg5f4 Rc8 Qa6 Rd8 Bh8 Rb7 Nf6 Re8 Bd3 Na1 Be1 Nf2 Rg2 Rg7 Bg5 Ree7 Ng3 Nh1 B1f2 Rgf7 Qb4 Ba5 Ba7 Qd7 Qbb6 Re8 Rd1 Bb4 b1N Ne7 Nd2 Bc3 Rb1 Nc8 Rb4 Ree7 N6e4+
Nn3kn1/2b1qb2/B2p1Rrn/6N1/n2PQRRP/K1N4r/1q1n1q2/3R2bb w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 d4 f5 Kd2 b5 e4 g5 c4 g3 Kc2 b3+ Kc3 g4 a4 b4+ Kd3 g2 a5 g3 h3 f3 a6 f4 a7 f2 e5 f3 e6 Bd6 e7 Bb7 c5 Bc7 Kc4 d6 Na3 b1Q c6 b2 Kb5 b3 Ne2 g1B Ka4 g2 Nc1 Qd7 Bd3 f1N Qc2 f2 Ne2 Nd2 Ng3 f1N Ne4 Ng3 Ng5 Nf5 Nb5 Nfh6 Ka3 Qc1 Nc3 b1N+ Ka4 b2 Ba6 Rh7 Qe4 Rg7 h4 Rg6 Rh3 Qe6 Rf3 Qf7 Nd5 Nc3+ Ka3 Na4 Rf6 Qg7 Nc3 b1B+ Kb4 Qc2 Ka3 Ba2 Rd1 Bf7 Rf4 Be3 Rg4 g1Q Rf4 Qf2 Rf6 Bd8 c7 Bbd5 c8R Qh7 Qf5 Bh1 Qe4 Qg7 Rc5 Bc7 Rcf5 Ba2 Qd3 Ba5 Bc8 Qg1 Nb5 Nc3 Rf2 Bd8 Kb4 Qf8 Rg2 Bf7 Rg4 Qf1 Rff4 Bg1 Qe4 Qf2 Bb7 Nd7 Bc8 Rb8 a8N Bc7 Bb7 Na4 Ba6 Rb7 Ka3 Nb8 Nc3 Rb1 Nb5 Rc1 Rf1 Re1 Nc3 Re3 Rc1 Rh3 Rd1 Kd7 e8R Qb1 Re5 Qe7 Rd5 Ke8 Rdf5 Kf8 Rf6 Qb2+
n7/1krpr3/Nn2q1Nn/B2qb1NN/1PbPB3/Q3rKR1/2n2Bn1/4rb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 f6 c4 Ra3 exf6 Rh3 f5 Rg3 f4 Rb3 cxb3 Kf2 f5 e4 g5 c4 a5 d4 f3 h4 a3 h5 b2 c5 f4 h6 a2 e5 a1Q h7 a4 e6 g3+ Ke1 g4 e7 f2+ Ke2 a3 c6 g2 c7 g3 Be3 a2 Rh6 f3+ Kd3 Bg7 Ke4 Ba6 c8N Qa5 Qe1 Bc4 Nb6 Na6 Rh5 Nh6 Qd1 Ra7 Re5 Qd5+ Kf4 Nc7 Qa4 Na8 Qc6 Rc7 Na3 b1N Bd3 f1N Qd6 f2 Qc6 Nc3 Nh3 g1R Be4 g2 Ng5 Qe1 Nc8 a1N Nb5 Na4 Kf3 Nc2 Qa6 N4b6 Qa3 Bf6 Re6 Be5 Rg6 Rg8 h8B Rg7 Bc1 Rf7+ Bf6 Nfe3 Bd2 f1B Bc1 Nef5 Be3 Rh1 Rg7 g1R Bf2 Rh2 Rg6 Bf4 Be5 Nfe3 Bd6 Ng2 Bc5 Na4 Bb6 Rgh1 Ba5 N4b6 Ne6 Rh7 Rg3 Be5 Ng5 Nge3 Bg1 Re2 Bf2 Rg1 Nba7 Ng2 Nc6 Qd2 Nb8 Qe6 Nf7 Qg5 Na6 Qg8 Ng5 Qd5 Qa2 Qge6 Qa3 Nf4 Rg4 Bh3 Nb8 Rge1 Na6 Bf1 Rg3 Ng2 Nh3 Kf7 e8N Kf8 Ne7 Rg7 Nf5 Re7 Nf6 Kf7 Nh5 Ke8 Nh4 Kd8 Ng5 Kc8 Ng6 Kb7 Qa1 Qdc6 Qb2 Qcd5 Qa3 Re3+
1r1b1N2/2q1Q1P1/pn1N1N1B/r2B4/2n1q2r/nnR4K/PkN1br1n/1B5q w - - 0 1 legal: proof: c4 e5 f4 b5 g4 bxc4 b4 g5 d4 exd4 Nd2 gxf4 g5 h5 Rb1 Nh6 Rb3 Ng8 Rg3 Nc6 Rg2 Nb8 Rg4 hxg4 Kf2 Ke7 Kg2 Ke6 e4 Ke5 h4 d5 h5 c5 g6 f5 h6 a6 h7 g3 b5 f3+ Kh3 c3 b6 g2 g7 f4+ Kh2 c2 b7 d3 Be2 Kd4 e5 Kc3 e6 c4 e7 d4 e8B f2 Bc6 f1Q Nh3 g1R Ng5 f3 Bd5 f2 Nf7 Qc7+ Ne5 Qe1 Bg2 f1R Bh5 Rf2 Nf3 d2 Qe2 d1N Bg4 d3 Nd4 d2 Be6 Nf6 Bg8 Ne3 Bd5 d1N Bf3 Nfg4+ Kh3 Nb2 Nd7 Be7 Bc6 Nh2 Bcf3 Bd8 Bf1 Rg5 Rg1 Ra5 Qd1 Qe2 Rg3 Qd3 Bg4 Qe4 Nf8 Nd7 b8N Nb6 Nbd7 Rb8 Nf6 Be6 Bf5 Bf7 Qf3 Bh5 Qh1 Be2 Bg6 N2a4 Bd2+ Kb2 Bg2 c1Q Nc2 c3 Qe1 Nec4 Bh6 Na3 Bf5 Nbc4 Re3 Qd3 Bd5 Nab6 Rf3 Qe4 Rd3 Rg8 h8N Qb1 Nf7 Rh8 Nd6 Qd1 Nd4 c2 Rc3 c1N Nc2 Nb3 Bh7 Bf3 Qe3 Be2 Bg6 Qdh1 Bf5 Qe8 Qe7 Rh7 Ne1 Qg6 Bb1 Qge4 Nc2 Bh5 Bg5 Bf3+ Kg3 Rh4 Bh6 Rg4+ Kh3 Be2 Ne3 Rgf4 Nc2 Rh4+
q1KN1bn1/r2n1nNb/5P1N/qBQ2B2/q2Rr1pb/1k6/bB2r1P1/5qB1 w - - 0 1 illegal: No proof kernel
kn3qb1/b1q1r1RR/2pn4/n1R2Q2/1rP1Pqb1/3r2Kn/2r3NR/B3B2B w - - 0 1 illegal: No possible last move
2n2nQ1/k3b1qn/q2r2pn/R2b1R1B/q2R2K1/1PbB2br/1B4P1/Rr2N3 w - - 0 1 illegal: No proof kernel
3bbQ2/K6B/rrkn4/B2nq3/qP2N2p/n1n3BR/R5nP/qn1qR1R1 w - - 0 1 illegal: No possible last move
3RrN1N/nn4b1/2p2Q1b/B4b2/PqR2R2/1qpK4/n1P1r1r1/1r1R1rNk w - - 0 1 legal: proof: f4 a5 g4 e5 b4 axb4 g5 exf4 g6 d5 Bg2 hxg6 Be4 g5 Bd3 g4 Bc4 dxc4 h4 Kd7 e4 Kd6 Ke2 Ke5 a4 f5 h5 b5 h6 g5 h7 c6 d3 g3 Ra2 f3+ Kd2 Kf4 e5 g2 d4 Kg3 e6 f2 e7 f1Q e8R g4 d5 f4 d6 b3 d7 f3 Ba3 b2 Kc3 b4+ Kd4 f2 Rh6 b3 Rh5 Qe7 d8N Bf5 Nb7 Nd7 Bb4 Nc5 Rh2 Bh6 Nd8 Nb7 Bd2 Qb4 Nc3 b1R Re6 b2 Qc1 Ne7 Rf6 Nc8 Be1 Re8 h8R Na7 Rh7 Re2 Nf7 Rae8 Rh8 Qb3 Bd2 Qe1 Ra1 f1R Rh4 Kf2 Qd1 g3 Nd5 Bg7 Ba5 Qeb4 Nc7 Bh6 Nf3 g1R Ne6 Kg2 Nf8 Bg7 Qd2 Bh6 Rf4 Kh1 Qc3 g2 Re4 Rbe1 Rg8 b1N Nh8 Rc1 Qb2 Nc3 Rf4 Rce1 Rd1 Na2 Qc3 Bg7 Qa1 Bh6 Re6 Bg7+ Re5 Bh6 Rc5 c3+ Rc4 Rff2 Qc1 Rgf1 Qe3 g1B Qe6 Bh2 Ng1 Rg2 Qf6 Bg3 Rd3 Rb1 Rd1 Bh3 Kd3 Bf2 Rg7 Bd4 Rd7 Bg4 Rd8 Be6 Qg5 Bdg7 Qf6 Bf5+
2N2rBN/N5p1/5qbP/3pB1PN/4B1Qr/RKrq4/n2r1kr1/2bnqn2 w - - 0 1 illegal: No possible last move, all moves rejected
1qR4b/pB1bQnbR/3b2Kp/Prq5/qNk2nB1/rb2R2P/3B2B1/6n1 w - - 1 2 legal: proof: d4 e5 c4 exd4 f4 g5 c5 gxf4 Nc3 dxc3 c6 bxc6 Qd3 c5 Qd1 c4 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kh5 d5 e4 c5 a4 f3 b4 f2 g4 f4 g5 c2 b5 c3 b6 c4 e5 f3 b7 d4 a5 Kd5 g6 d3 g7 d2 e6 Na6 b8R Nc7 e7 Bd7 e8B Nh6 g8B+ Ne6 Bef7 Bg7 Rb7 Rb8 Be8 Nf7 Rb3 Rb5 Rab1 Qb8 Qe1 d1B Bg5 c1Q Qe3 c2 Qe1 c3 Be2 f1N Rb4 f2 Be7 Nd2 R1b3 f1Q Rc4 Qff4 Bb4 Nf3 Nh3 Ng1 Rc8 Qce3 Ra3 c1B Bg4 c2 Nf2 Qc5 Nd3 Bcb2 Bd2 c1B Nb4+ Kc4+ Qe5 Ba4 Re3 Bb3 Qg5 Bbe5 Qd8 Ba3 Qe7 Nfg5 Bg6 Nf7 Be4 Bab2 Bb7 Bd6+ Nd5 Bbe5 Nb4 Qd4 h3 h6 Kg6 Bef6 Bh7 Rg8 Rh2 Qa1 Rhe2 Qa4 Re1 Rf8 Rb1 Bh8 Bg2 Bfg7 Rf1 Nfd8 Rf7 Re8 Bg8 Nf4+ Kh7 Ba1 Qe5 Rb6 Re1 Rb5 Qg5 Re3 Qe7 Rc3 Re3 Rc2 Bb7 Ra2 Bg2 Nfe6 Kg6 Ra3 Rh7 Bag7 Bf7 Bc6 Be8 Nf7 Bd7 Ned8 Bdf5 Bd7 Bfe4 Ne6 Bb7 Nf4+
K7/B1R1B1nn/Br1pbr2/4Pr2/3R1Qqq/2p3nk/1bNPR3/rr3qB1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 b5 Na3 bxc4 b5 e5 Nc2 exf4 Nb4 axb4 Kf2 Ke7 a4 Kf6 h4 Kf5 h5 c5 a5 g5 h6 f3 Ke3 c3 a6 c4 Kd4 b3 Kd5 f2 h7 c2 e3 c3 b6 b2 b7 b1R a7 g3 Ra5 g4 Ra6 g2 Rd6 g3 Qe2 Nf6+ Kc5 Na6+ Kc4 Nc5 b8B Rb6 Nh3 g1N Qd1 g2 Qe1 Kg4 e4 Ne6 Nf4 Ne2 Nd5 g1Q Ba3 c1R Nb4 Ng3 Nc2 Ng7 Kc5 Rcb1 Ba6 f1R+ Qe3 Rf5+ e5 Be7 Rh2 Rf8 h8B Nh7 Re2 Kh3 Qf2 Qg2 Qf4 Qf3 Bb4 Qg4 Kd5 f6 Bc5 Rf7 Be3 Bf8 Rc6 Ba3 Bg1 Bb2 Kd6 Qe7+ Kc7 Qb4 Rc4 Rf8 Rc6 d6 Rc5 Qe4 Rd5 Be6 Rd4 N7h5 Bg7 Qh4 Bh6 Ng7 Bg5 Qf3 Qe3 Qfg4 Qe4 Rff1 Qf4 f5 Bd8 Rf6 Be7 Rc6+ Kb7 Rf2 Qf3 f4 Qe4 f3 Qf4 Rc5 Bc7 Ra5 Bb6 Raa1 Bc5 Rh8 a8R Rb8+ Ka7 Rb5 Rc8 Rb6 Ka8 Rff1 Rc7 f2 Bd8 Rfe1 Be7 f1Q Rg2 Re3 Rf2 Rf3 Re2 Rb3 Ba7 Rb6 Qe3 R3f5 Qf3 Nh5 Qf4 Ng7
b1kN4/Bn1pPb2/rn1B1N1K/3B1pb1/1r4rn/1b2R1q1/3Pq1bB/3Q3N w - - 0 1 illegal: No possible last move, all moves rejected
5r1n/1q4Pk/1r1b4/n1Q5/2R1Nn2/RKNR2p1/1RrBbpP1/1Nqq1rb1 w - - 0 1 illegal: Other
R2Rq3/8/BKb2rbp/2B1N3/r1pr1n1B/r1BP1bQP/2Rrk2b/2n3b1 w - - 0 1 illegal: No proof kernel
4n1R1/1kqr1N2/nN1p3K/1p1N1Q2/1r2P2B/1n1N1nb1/rP1rb1B1/1B1n2r1 w - - 0 1 illegal: No proof kernel
1rn4b/R4nnN/N3NQ2/2qbr1p1/1PB2n1p/1bq1nBKP/6n1/N3B2k w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a4 bxa4 g5 e5 g6 e4 Ra2 fxg6 Ra3 g5 Rg3 g4 Rd3 exd3 e4 Ke7 c4 Ke6 f4 d5 Kf2 g5 h3 h5 c5 a5 c6 d2 c7 d3 f5+ Ke5 f6 Kf4 e5 g3+ Kg2 d4 f7 a3 e6 a4 e7 a2 e8N a1N Bb2 a3 Ng7 a2 Ba3 Be6 c8B Nh6 Qc2 d1B Rh2 d2 Bb7 d3 Qc7+ Qd6 Nf3 Bd5 Qc8 Nc6 Ba6 Nb3 Bb2 a1Q Qe8 Nc5 Bc3 Ne7 Bf6 B1b3 Na3 d1N Bd4 d2 Nb1 Rb8 Bb2 Nc8 Qb5 Ne6 Qc6 Qc5 Ne8 Bg7 f8N Nf7 Bae2 Be5 Bc1 Qac3 Nc7 Ng7 Nh7 Re8 Na3 Bd4 Qd6+ Re5 Nc2 Ke4 Na1 Ne3+ Kg1 d1N Na6 g2 Bd2 Kf4 Qf6+ Kg3 Rh1 Nf2 Bd1 Nd3 Rh2 Nf4 Bc4 Qc1 Rh1 Bb2 Nd4 Qc3 Ne2+ Kf3 Kh2 g1N Nd4+ Kf2 Bf3 Nfg2 Ne6 Ne2 Re1 Nef4 Re2+ Kf1 Kg3 Kg1 Be1 Kh1 Rc2 Bc1 Ra2 Bb2 Ra3 Rf5 Nhf8 Qd3 Qe7 Ne8 Nac7 Bh8 Nh7 Ng7 Ra7 Re5 Qf6 Qc3 Na6 h4+
N1b3NB/r7/2p2pb1/4nPR1/Q1rkb3/rbqPR1rN/R3K2q/1nbR4 w - - 0 1 legal: proof: c4 e5 b4 a5 f4 axb4 h4 d5 h5 dxc4 e3 e4 h6 gxh6 Be2 h5 Bg4 h4 Bf3 exf3 a4 Ke7 g4 Kd6 g5 Kc5 e4 b5 e5 h5 a5 b3 g6 b2 e6 f6 g7 c6 a6 f2+ Ke2 f1B+ Kf3 h3 a7 h4 e7 h2 e8N c3 Ra3 h3 Ke3 b4 Qc2 b3 Qe4 c2 Ne2 Qd3+ Kf2 Nd7 Nd6 Rh7 Ne8 Ne7 g8R Nd5 Nec3 Bh6 Nc7 Ne5 Qe2 Kd4 Ne4 Nc3 Ng5 Rd7 Rg1 h1B Qd1 h2 Nh3 Be4 R8g4 Bg6 f5+ Bf4 R4g3 h1Q Ra1 Qc4 d3 Qh2+ Ke1 Bg2 Bd2 c1R Kf2 Na4 Nc3 b1R N3d5 b2 Ne7 Nc3 Ng8 Be4+ R1g2 Qc5 Qb3 Rc2 Qb5 Re1 Rd1 Rg1 Qb3 Nb1 Ke2 Rc1 Bb4 Qa5 Bf8 Rc4 Bg7 Bc1 Re3 Qc3 Bh8 Rg7 Nf2 Rf7 Rg5 Rg3 Qa2 Rb8 a8R Rb3 Ra5 Re7 Na8 Rd7 Rb5 Ra7 Qa4 Ra3 Rb6 Nd2 Rb4 b1B Rb2 Ba2 Rc2 Bb3 Ra2 Bg2 Nh3 Nb1 Kf2 Bf3+ Kf1 Bg2+ Ke2 Be4+
b2nNNn1/QBrq2B1/7r/1R4NP/p4k2/3r1p1B/1b1q1P1b/1N1rbbK1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a4 bxa4 g5 e5 g6 e4 Ra2 hxg6 Rb2 g5 Rb3 g4 Rd3 exd3 e4 Ke7 c4 Kf6 h4 Ke5 c5 a5 c6 f5 b5 g5 h5 d5 b6 a3 c7 a4 b7 g3 Nh3 g2 Rg1 d2+ Ke2 d3+ Ke3 f4+ Kf3 d4 Be2 a2 Rf1 a1B Na3 g1Q Re1 Ra7 Nb1 Bb2 Qc2 d1B Qb3 d2 Qe3 d3 Qb6 Bb4 Qc6 Qd7 Qb6 Rh6 Rf1 Nc6 b8N Bb7 c8B Nd8 Na6 Ba8 Qe3 Rc7 Nc5 Bb3 Bd1 Bc4 Ne6 Qh2 Bc2 d1R Qa7 Be1 Bb7 d2 Nf8 Qg1 Bd3 g4+ Ke2 g3 Ng5 g2 Kf3 Bd4 Bb2 Qh2 Rh1 g1B Bf1 Qh4 Kg2 Bh2 Ba1 Bg3 Kg1 f3 Bh3 Kf4 e5 Bf1 e6 Bb2 e7 Qhg4 e8N Qge6 Rh2 Qe2 Rg2 Rdc1 Ba6 d1R Bc8 Qed2 Bb7 Bh8 Bd4 R1c3 Bg7 Rd3 Ngh7 Bh4 Rg5 Bg3 Ra5 Rcc1 Ng5 Rc7 Ba1 Bb2 Rb5 Ba3 Bd4 Bb2 Bg7 Bh2+
bR1br2q/b2R1pn1/1RNB1qq1/2b1BPk1/PK2r3/8/2pR2B1/n1q2Q1q w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 d5 h5 Nd2 hxg4 Ndf3 e5 Nd4 exd4 Kd2 Ke7 h4 Kf6 e4 g5 f4 c5 a4 b5 h5 b3 d6 b4 d7 c3+ Kd3 c4+ Ke2 g3 h6 b2 h7 b1Q Be3 d3+ Ke1 g2 Rh2 d2+ Ke2 g4 Nf3 g1B Ne5 b3 Bb6 c2 Rg2 c1Q Bd4 g3 Qe1 c3 Ra3 b2 Rh2 g2 Qf2 Ne7 Rh3 Na6 Bb6 Nc5 Bc7 Nb3 Re3 Na1 Bd6 Bb7 Rg3 Nf5 Rb3 Be7 Nc6 Ng7 Rd3 Re8 h8B c2 f5 Kg5 Qe1 Ba7 e5 g1B e6 Bgd4 Rb6 Qa2 Qd1 b1Q Bg2 Qbb2 Qf1 Bef6 e7 Qe6+ Be4 Qc8 d8R Rb8 Rd7 Ba8 Bc7 Qd6 Bg2 Qg3 Bd6 Qc3 Ra6 Rb4 Rb6 Qd8 Rf3 Q3b2 Kd3 Qg4 Rf2 d1Q+ Rd2 Qh5 Qe2 Qdh1 Qf2 Qg6 Qf1 Rb3+ Kc4 Re3 Qd1 Re4 Qf1 Rg8 e8R Rf8 Re5 Re8 Reb5 Qe7 Rb4 Qe6+ Kb5 Bd8 Rb8 Qef6 Kc4 Qa3 R4b6 Qah3 Kb4 Ne6 Bg7 Qh8 Bgf8 Ng7 Be5 Re6 Bc5 Re8 Bcd6 Bc5+
Nk1B4/3Q2b1/bNb1p2K/7n/pnB1PRr1/n3nP2/1BN1n3/1Bb1q1rq w - - 0 1 legal: proof: d4 b5 b4 c5 a4 bxa4 g4 cxd4 g5 f5 g6 f4 Ra2 hxg6 Ra3 g5 Rh3 g4 Rg3 fxg3 Kd2 g5 e4 d5 h4 Kd7 c4 Kc7 c5 a5 f3 g2 h5 g3 b5 a3 h6 d3 Ke3 g4 Kf4 e6 h7 d4 c6 a2 Qb3 a1N Qc4 d2 Rh4 d1B Be2 d3 Bb2 d2 Bg7 Ba4 Qc3 d1N Bf1 Na6 b6+ Kb8 b7 Nf6 Kg5 Nb4 Nh3 g1B Nf4 g2 Bc4 g3 Na3 Be3 Qd3 g1Q Kh6 g2 Qd7 Rg8 h8B Nh5 Nc2 Qh1 Bd3 g1N c7+ Ka7 b8N Ne2 Rg4 Qdh4 Na6 Bc1 Bc4 Bb7 c8B Bc6 Nc7 Ne3 Nfd5 a4 Rf4 Kb8 Nb6 Ba6 Bb7 Ra7 Nca8 Q4e1 Bc8 Rc7 Bb7 Rc8 Ba2 Re8 Bb1 Re7 Bc8 Rf7 Bb7 Rf5 Bc8 Rg5 Bb7 Rg4 Bc8 Bd6 Bb2 Be5 Bf6 Rg1 Bd8 R8g4 Na3 Nac2 Bb7 Ncd4 Nc2 Nb5 Bc8 Na3 Bb7 Bcb5 Bd5 Bc6 Bc4 Bg7+
1qR1BBR1/b2n4/1k5b/1prRB2q/P1b1pqq1/NP3B1Q/b2nK3/2b4r w - - 0 1 illegal: No possible last move
B1r3q1/1B3BrN/bb3q1k/2PnqpRp/1nb4P/5qQ1/NB1rN3/4bK2 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 f5 e4 a5 f4 axb4 Ra3 g6 Rf3 fxe4 f5 Ra5 f6 Ra8 Rf5 gxf5 c4 Kf7 g4 Kg6 h4 b5 a5 h5 g5 d5 f7 e5 a6 d3 a7 d4 Be3 d2+ Kf2 b3 Bg2 d3 Bc5 b4 Kf1 e3 Bb6 e4 Rh2 e2+ Kf2 e1B+ Kf1 b2 Qc2 d1Q Be3 b3 Na3 b1B Bf3 b2 Be2 d2 Nb5 Nf6 Rf2 Rg8 Bf3 Nd5 Qa4 Na6 Nc7 Bd3+ Ne2 b1Q Rg2 Qbb3 Bd4 e3 Bb2 Bc5 Nb5 Nab4 Nc3 Ba6 Na2 Qf6 Qa3 Rac8 a8B Bb6 c5 Bdc4 f8N+ Kg7 g6 Kh6 Rg5 Rg7 Nc1 Qa2 Nh7 Qdb3 Be4 d1R Bg2 Qd3 Qc3 Qb3 Na2 Rd2 Qe5 Qe4 Qg3 Qf3+ Kg1 Rb7 g7 Ra7 g8B Rg7 Nec3 e2 Bf7 Qe4 Bh1 Qe8 Be4 Qg8 Bb7 Bf2+ Kg2 e1Q Ne2 Qa1 Ba8 Be1 Kf1 Qe3 Bg2 Qee5 Bb7 Qd1 Be4 Nf4 Bec6 Nfd5 Ba8 Qb3 Bcb7 Qf3+
1B1bN1rN/K2RP2p/3RbnqN/r4RQn/3q2nb/5n1p/4b1RP/5q1k w - - 0 1 legal: proof: f4 d5 b4 a5 c4 dxc4 e3 axb4 f5 g6 f6 exf6 Bd3 f5 Be2 f4 Bh5 gxh5 Ke2 Ke7 g4 Kd6 d4 Kd5 a4 Ke4 g5 b5 d5 c5 a5 f5 d6 h4 g6 h3 g7 b3 a6 b2 a7 c3 d7 c4 Ra5 c2 Na3 b1N Ra6 b4 Qe1 c3 Qd2 f3+ Kf2 f4 Bb2 c1N Rb6 b3 Qd6 c2 Bf6 b2 Ra6 Ne2 Nc4 c1B Qc5 Nh6 g8N Nd2 Be5 b1Q Rd6 Ng3 Ne2 Nh5 Rg1 Be7 Rg2 Qdb6 d8R Be6 Rf8 Nd7 Rf5 Rc8 a8R Ndf6 Ra7 Bd8 Rad7 Qc2 Qa5 Qd4 Qb5 Rc5 Qa5 Nf7 Nh6 Re8 Rc6 Rg8 Bb8 Ne5 Nd6+ Kd5 Ne8+ Ke4 Rcd6 Neg4+ Ke1 Qcd3 Qb5 f2+ Kd1 Kf3 e4 f1B e5 Ba2 e6 Qb1 e7 Be6 Nf7 Qbd3 Ng3 Be2+ Ke1 Qc2 Nh8 Qce4 Rfd5 Qg6 Nf5 Bb2 Nh6 Bc3 Qb1 Bb2 Qf5 Ba1 Qg5 Bc3 Rf5 Ba1 Rg1 Bc3 Rf1+ Kg2 Rf2+ Kh1 Rg2 f3 Nc7 Bb5 Ne8 f2+ Kd1 f1Q+ Kc2 Nc4 Kb3 Nce5+ Ka3 Bbc4 Ka4 Be1 N6f7 Bh4 Nh6 Nf3 Kb4 Rc7 Ka4 Be2+ Ka5 Rc4+ Ka6 Rc5+ Ka7 Ra5+
k3r1qb/2RB2b1/qr1K2p1/1R1R2Pn/pNP2QNb/Nr5q/5R2/n4q1b w - - 0 1 illegal: No possible last move, all moves rejected
k1N2b1N/pr4r1/Pq1Q1K1p/n1nn1N2/8/BNr1q1Rq/r1P5/n2RRb2 w - - 0 1 legal: proof: e4 c5 Ke2 d5 b4 dxe4 h4 cxb4 h5 f5 h6 f4 Rh5 f3+ Ke3 gxh6 Rh1 h5 Ba6 h4 Be2 fxe2 Kf4 Kd7 Kf5 Kc7+ Kg5 e1N f4 e5+ Kh5 b5 d4 Kb7 a4 e3 g4 h6 Kg6 e2 d5 e4 a5 b3 d6 h3 d7 e3 g5 b4 f5 b2 f6 b3 f7 h2 Nd2 b1N Ra2 b2 Ngf3 Nc6 Ng1 Qb6 d8R Nf6 Nf1 Nd2 Rd5 b1R Ra3 Nd3 Nf3 e1Q Re5 e2 Ne3 Nd5 Nf5 Nc5 N3d4 Rh7 Rg3 Ndb3 Ba3 Na1 a6+ Kb8 Re6 Na5 Nb3 Rb2 Rhg1 h1Q Rd6 Qc3 Re1 Qh3 Qd4 Ra2 Qb4 Bg7 f8N Qe3 Kf7 Bd7 Ng6 Bb5 Nh8 Bf8+ Kg6 Rb7 Qf4 Nc3 Kf6 Bd3 g6 Bc4 g7 Nd5+ Kg6 Bd3 g8N Bb5 Reg1 e1R Nge7 Bf1 Nc8 Rd1 Qe5 Rd3 Qf6 Rc3 Rh1 Nb4 Rd1 Nd5 Qd6+ Nc7 Rf3 Bd3 Kf7 Bg7 Rhe1 Bf1 Qg6 Nd5+ Nce7 Kc7 Qf6 Rg8 Rg3 Kb8 Qd6+ Ka8 Kg6 Bf8+ Kf7 Nb4 Kf6 Rg7 Nc8 Nd5+
2RQb1K1/8/3bP3/rnN2pq1/1N5q/np1RnP1k/1rRRNbrB/1nb5 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 e5 g6 e4 Bd3 exd3 Bb2 hxg6 Ba3 g5 Bc1 g4 Kd2 Ke7 c4 Ke6 a4 Kf5 h4 b5 a5 d5 h5 g5 h6 b3 c5 b4 h7 g3 c6 b2 a6 g2 a7 b3 c7 g4 Qe1 g3 e4+ Kg4 e5 Qg5+ Qe3 Nc6 Na3 b1N+ Ke1 d2+ Ke2 d1R Rh6 Nf6 Qd2 Ne8 Kd3 Bd6 Bb2 Na5 Ne2 g1B Nc3 g2 Rg6 Nc4 f3+ Kh3 Na4 Rg8 h8N Bf2 Nc5 g1B Nc2 Nca3 Nb4 Bf5+ Ne4 f6 c8R Nc7 e6 Ncb5 Rc2 Qh4 Rg4 Bg6 Rg2 f5 Nc5 Be3 Re2 Bgf2 Ra2 Bh6 Re3 Rg1 Bc1 Rg2 Qd1 Rgc8 Rd2 Rc6 Rac2 Ra6 Bb2 Ra5 Ba1 Rc8 a8R Rc7 Rc8 Rh7 Ree2 Bhf4 Rc3 Rh5 Rdc2 Bc1 Qd2 Rh6 Qg5 Rh5 Qd8 Rhg5 Bb2 Rh2 Red2 Rgg2 Nf7 Qg5 Ne5 Qh4 Nec6 Qg5 Ke2 d3+ Kf1 Be3 Rf2 d2 Ke2 d1N Kd3 d4 Rce2 Nc2 Kc4 d3 Kd5 d2 Rd3 Rg4 Be5 Rg1 Nd4 Nca3 Kc6 Rg4 Kd7 Rg3 Rg2 Bg1 Rgf2 Ne3 Bf4 d1Q Be5 Bh7 Ke8 Qe1 Kf7 Bg6+ Kg8 Rg4 Rg2 Qeh4 Ra2 Rg3 Rgb2 Rc2 Ne2 Rg2 Bf4 Bf2 Bh2 Rc3 Rbd2 Rc2 Ra1 N1c3 Rb1 Ra2 Rbb2 Ncb1 Rbc2 Rb2 Rc4 Nd1 Rcc3 Ne3 Rcc2 Be8+
r2nR2r/1b1np1bn/1NB5/4P3/Bb3prQ/nBB1b2P/2NNKq1q/2k5 w - - 0 1 illegal: No possible last move, all moves rejected
5b2/rn2r3/1Nkp3n/1RN1b2K/p2P1r1q/QN1B1R2/P2q2N1/1b1qR1rq w - - 0 2 legal: proof: f4 e5 c4 exf4 h4 b5 h5 bxc4 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 a5 Kf3 c5 Kg4 h5+ Kf5 h3 e4 a4 b4 f3 g4 f2 b5 c3 b6 c4 g5 h4 Kg4 f5+ Kf3 c2 e5 h2 d3 f4 Kg4 c3 e6 f3 b7 h3 g6 Nc6 b8R Ra7 g7 Rh7 e7 Nh6+ Kg5 Na5 g8N Nb7 Nd2 d6 d4 Kd7 Nf6+ Kc6 e8N Bf5 Kh5 Re7 Nd7 Qa5 Ba6 f1Q Bd3 f2 Nb3 Qe1 Ne2 f1R Nb6 Qf2 Be3 c1B Nf6 c2 Nfd7 Qd2 Bg5 Be4 Rg1 h1R Ndc5 h2 Rg3 Rhg1 Rf3 h1Q+ Bh4 Bh7 Qe1 Qd1 Qa5 Bf4 Qb4 c1Q Qa3 Be5 Nf4 Qcd2 Ng2 Q1e2 Re1 Qed1 Bc4 Bc2 Bd3 Bb1 Nf4 Rg4 Ng2 Rg1 Rf1 Re4 Re1 Rf4 Nbd7 Na5 Rb5 Nb7 Nb6 Qfxh4+
8/rpp1Nb1n/b1Nn2rn/1P1P4/1q2NRn1/1q1kb3/b4BBr/2BB1K1Q w - - 0 1 legal: proof: c4 a5 a3 h5 g4 hxg4 b4 d5 f4 dxc4 f5 Bd7 f6 Bb5 Ra2 a4 Rb2 exf6 Rb3 axb3 h4 Ke7 e4 Kd6 d4 g5 a4 c3 h5 c2 h6 f5 e5+ Kd5 e6 Ke4 a5 f4 h7 f5 d5 b2 e7 f3 e8B f2+ Kd2 f4 a6 f3 a7 g3 Na3 b1B Bf7 g2 Rh3 g4 Rh6 g3 Rh5 Nh6 Nc4 Na6 Ne3 Qe7 Rg5 Ba2 Qe1 Nc5 Rf5 Be8 Nh3 g1N Nf4 g2 Qd1 Nh3 Nc4 g1R Ne5 Ng5 Bg2 f1N+ Ke1 Nh2+ Kf2 Bg7 Bh5 Bf7 Nc6 Bd4+ Be3 c1Q Ng6 Qf8 Nge7 Qc3 Qc1 Kd3 Rf4 Qb3 Qa1 Rg8 h8B Rh1 Qg1 N2g4+ Kf1 f2 Bc1 Be3 Bd4 Rh3 Qh1 Nce4 Bc5 Nh7 Bb6 Rc8 a8N Nd6 Ba7 Rh2 Nb6 Rb8 Nc4 Rg6 Nd2 Ra8 Bb6 Ra7 Ne4 Kc2 Ke2 f1B+ Ke1 Ba6 b5 Ngf6 Kf1 Kd3 Bd1 Nfg4 Ba5 Qg7 Be1 Qgc3 Bf2 Qcb4
kn3bK1/3P1n1r/p1bNB1BQ/n7/P1Br3p/1nN1R1B1/2b3qN/b3qr2 w - - 0 1 legal: proof: b4 d5 c4 dxc4 h4 b5 a4 e5 f4 exf4 Ba3 g5 Bb2 gxh4 Bc1 Bc5 Ra3 Bf8 Rd3 c3 Rd4 Qf6 Rc4 bxc4 Kf2 Qd4+ Ke1 Qd8 Kf2 h3 Kf3 Nc6 Ke4 Kd7 Kd5 f5 g4 h5 e4 f3 d4 h4 g5 f2 e5 h2 g6 f4 b5 a6 g7 c2 b6 f3 b7 c3 Ba3 c1B Qe2 c2 Qd2 Rh7 Qc3 Qe8 Qb4 Nh6 g8B Bb2 Qb6 c1N Bd6 Ba1 b8N+ Kd8 Bf7 Bf5 e6 Kc8 e7 Ra7 Bd3 f1Q Bg3 f2 Nf3 Qg2 Nd7 Nb8 Re1 f1R Nf6 c5 Ne4 c4 Qf6 c3 Bc4 c2 Nbc3 Bg6 Ke6 Kb7 d5 Ka8 d6 Rd7 Qg7 Bf5+ Kf6 Rd8 Bg6 Nf7 Qh6 h1B Re2 Qf2 Nh2 Qc6 e8B Qe1 Be6 Nb3 Re3 Na5 B8d7 c1N Bc4 Ncb3 Bde6 Bf3 d7 Re8 Nd6 Bc2 Bg4 Re4 B4f5 Rd4 Bfe6 Bg7+ Ke7 Bh1 Ke8 Qf3 Ke7 Qff2 Ke8 Bc6 Ke7 Qg2 Ke8 Bh8 Kf8 Bg7+ Kg8 Bf8
rq1q4/R3b1N1/4KBp1/r1R1NQrn/q7/pN3bPP/b1n1q1k1/N3Rr2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 f5 b5 g3 bxa4 f6 h4 Nd2 h3 Bg2 hxg2 Nb1 exf6 Bd2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 c4 d5 b4 a5 c5 f5 c6 a3 b5 a2 b6 g6 c7 d3 b7 d2 Bb2 f4 Qf1 d1B Qf2 d4 Qe2 a4 Nc3 d3 Qf1 d2 Ba3 f2 Bc5 f3 Qb5 f1R Nd5 f2 Be7 Be6 c8R Nf6 Nb4 Na6 b8N Nh5 Ne2 Kf3 h3 g1Q Nd4+ Kg2 Nbc2 Bf3 Nb3 d1Q Bf6 Nb4 Rc5 Be7 Nd7 Ra5 Qd3 Qe2 Re1 Rf8 Nca1 Nc2 Qd5 Bg8 Qf7 Qh2 Ke6 Qb5 e5 Qbb8 Rb1 Rd1 Re1 f1R Rc1 Rd4 Rc7 Rg4 Ra7 Na3 Rc5 Nc2 Nb6 Rg5 Nc4 Qdb6+ Kd7 a3 e6 Qa6 Ne5 Qe2 Rac7 Qg1 Ra7 Qd4+ Rd5 Qa4+ Rb5 Bb4 e7 Rc8 e8N Be7 Ng7 Re8 Ke6 Rf8 Nd2 Qd8 Nab3 a1Q Rc5 Qb1 Na1 Qbb8 Ndb3 Qdd3 Nc1 Rc8 Ncb3 Qd8 Nd2 Qb7 Ndb3 Ra8 Rc7 Qbb5 Rc5 Qbb8 Nd2 Rf5 Bg5 Bg4 Bh4 Qdc7 Kd5 Qcc8 Qe6 Qf8 Bf6 Bf7 Rd1 Rg5 Re1 Be8 Qf5 Bf3+ Ne4 Bb5 Ke6 Qfd8 Nd2 Bc4+ Rd5 Ba2 Ndb3 Rh1 Rc5 Rf1
R4q1B/KQB3r1/3p2Br/2b5/P5N1/1b1n1qpn/1pbn2P1/RRB1kr1q w - - 0 1 illegal: No proof kernel
5nnR/N1r1B3/1Rb1Rqk1/prnNr3/p1Qp4/P1Pbq3/1qR4b/2N4K w - - 0 1 legal: proof: h4 c5 f4 g5 d4 cxd4 f5 gxh4 f6 b5 e3 exf6 Bc4 f5 Bb3 f4 Ba4 bxa4 Kf2 a5 g4 f5 Kg2 Kf7 b4 h5 b5 d5 e4 d3 g5 h3+ Kh2 f3 c3 f4 a3 d4 b6 d2 e5 f2 b7 f1B e6+ Kg6 e7 h4 e8R f3 Qc2+ Bd3 Qa2 d1R Be3 f2 Re5 f1Q Qb2 Rh7 Re8 Re1 Re6+ Qdf6 Qb5 Bd7 Qc4 Bc6 Ne2 Rc7 Ra2 Nd7 b8R Qf3 Rb6 Rb8 Rc2 Bd6+ Bf4 Qe4 Nc1 Qe3 Nd2 Nf8 Ne4 Be5 Nd6 Rbb7 Ra6 Rb5 Nc8 Bd6 Rb6 Be5 Na7 Bd6 Rf2 Re2 Kg1 h2+ Kf1 h3 Bg3 Kh5 g6 Be5 g7 Kg6 Bh4 Bg3 Rg1 h1Q Bg5 Qhe4 Rh1 h2 Bh4 Q4f4 Bg5 Qd2 Bh4 Re4+ Kg2 Qb2 Rc2 Qe3 Bg5 Nh6 g8N Bf4 Re1 h1N Rg1 Nf2 Rh1 Bh2 Ne7+ Kh7 Bh4 Ree5+ Nd5 Kg6 Bg5 Ne4 Bh4 Bf4 Bg5 Ng8 Rh8 Nc5 Kh1 Bh2 Bh4 Kf7 Bg5 Qg6 Bd8 Qf6 Be7 Kg6
rq1Nr2N/2QR3p/1B3p2/b4b1P/2rnp2N/2n2nKn/1R3PnR/b1kN4 w - - 1 2 legal: proof: c4 d5 e4 dxe4 b4 g5 h4 g4 b5 a6 g3 axb5 Qb3 bxc4 Bh3 gxh3 Qd1 c3 a4 Kd7 d4 Kc6 a5 Kb5 h5 Kb4 g4 c5 a6 e5 g5 b5 a7 c4 g6 c2 d5 Kb3 g7 h2 d6 c3 d7 e3 Ra6 e2 Na3 e4 Nb1 f6 Qd2 b4 Qd1 Ne7 g8N Nd5 Bh6 Kb2 Ne7 c1B Ng6 b3 Rd6 c2 Bf4 Ne3 Nc3 Nc6 Rd4 Bb4 Rc4 Nd4 Nf3 Ba5 Ng1 Re8 Rb4 Qc7 d8N Bf5 Qd3 Qb8 Nd1+ Kb1 Bc7 Bb2 Bb6 Kc1 Qc4 Ba1 Qc3 b2 Nf3 b1N Qc7 Nc3 Rb5 Nb3 Nfh4 Nd4 Rg1 h1R Rb2 Rh3 Nh8 Rg3 Rh1 Rg7 Qe5 Rc7 Rh2 Rc4 Qc7 Ned5 Rb5 Nf4 Rd5 Nh3 Rd7 Kb1 Kd2 e1N Ke3 c1N Qb7 Nef3 Qc7 Nhg5 Kf4 Nd3+ Kg3 Nf4 Rd6 Qb7 Rd5 Ngh3 Rd7 Rb8 a8R Ng2 Ra7 Ra8 Ra6 Qb8 Ra7 Bb4 Ra2 Kc1 Rb2 Ba5
1r3bNN/5nR1/RNp3Bq/1NP1k3/1q5P/2bn1rp1/2QRpb1K/3r1b1b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 f4 Kd7 d4 Kd6 a4 g5 h4 b5 c4 e5 f5 c6 d5 g2 Kf2 b3 Kg3 b2 a5 e3 f6 e4 c5+ Ke5 f7 e2 a6 e1B+ Kh2 e3 d6 e2 a7 b4 d7 g3+ Kh3 b3 Ra2 Nh6 Qd3 Na6 Qg6 Qf6 Na3 b1Q Rh2 b2 Qc2 Rb8 a8N Bc3 Nb5 Nb4 Ra6 Nd3 Nb6 Qe1 Rh1 b1B Rh2 Ba2 Rh1 Bd5 Nf3+ Ke6 d8R g1B Rh2 g2 Nd2 Bf2 Ne4 g1R Rg2 Ke5+ Kh2 Bh3 Rg3 Qd6 Nf6 Bh1 Bg2 Qb1 Be4 Rd1 Bf5 Bf1 Bg6 Qb4 Ng8 Qf6 Rg4 Rh7 Rd7 Qh8 Rgd4 g4 Rda7 Nf4 Rd2 Nd3 Rc7 Rg7 Bf5 Rg5 Bg6 Rf5 Rb7 Rf3 Rc7 Be7 f8N Bd6 Rh7 Nf7 Rg7 Be7 Be4 Qh6 Ng6+ Ke6 Nh8 Bf8 Bf5+ Ke5 Bg6 g3+
2Rbb1B1/k2n1np1/2n1qb2/N2R1R1q/pb3prP/2b3P1/3r2KQ/1N4NN w - - 0 1 illegal: No extended proof kernel
b1br1N1q/B5p1/r1N1Q1Pk/4n2B/Br1n2p1/P2qp2N/nBR1n3/2b4K w - - 0 1 legal: proof: d4 f5 e4 fxe4 g4 a5 b4 axb4 a3 c5 g5 cxd4 Nh3 h5 Rg1 Nf6 Rg4 hxg4 Ng1 Ng8 Bf4 Nf6 Qd2 Qc7 Bd3 Rg8 Nf3 Na6 Kd1 Qd6 Nc3 Qd5 Ke2 Qc6 Rh1 Qc7 Nb1 Rb8 Ke1 Qd8 Qd1 Rh8 Bc1 Ng8 Bf1 Ra8 Ng1 Nb8 f4 Kf7 Kf2 Kg6 Kg2 d5 h4 b5 c4 e5 c5 d3 c6 d4 c7 e3 Qd2 b3 Qc3 b4 Qc6+ Bd6 Qb7 e2 Kh2 e1N Be2 b2 Qf3 d2 Qb3 d1Q Nh3 e4 Qe6+ Nf6 Nc3 b1N Nb5 d3 Bb2 b3 Na7 d2 Nc6 Ra6 Bd3 Nd7 h5+ Kh7 h6 Nf3+ Kg2 Nd4 f5 Bf4 Rh2 Nd5 f6 Ndc3 f7 Nce2 f8B Nbc3 Bc5 Na2 Ba7 Ne5 Bb1 Qc2 Kh1 d1B Rf2 Qd3 Rh2 Bb7 c8B Bc1 Bd7 e3 Be8 Rf8 Bc2 Bc8 Bh5 Qe8 Bc3 b2 Ba4 b1R Bb2 Rf4 Rg2 Qh8 Rf2 Rf8 Rg2 Nf4 Rc2 Rd8 Nb8 Nd7 Bc3 Rb4 Bb2 Bf3+ Kg1 Bfb7 Nc6 Ne5 Kh1 Nfe2 Qd6 Kg8 Qe6+ Kf8 h7 Qg8 h8N Ba8 Qd5 Qgh7 Ng6+ Ke8 Qd6 Kf7 Nf8+ Kg8 Qd5+ Kh8 Qe6 Qg8 Nd7 Kh7 g6+ Kh6 Nf8 Qh8
B2B1N2/1p1b3p/qrnQP3/N5p1/B1N3KP/1Bb1b1R1/r3k1q1/n3nr1b w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 g5 c5 g6 c4 Ra3 fxg6 Nc3 g5 Nb1 g4 Rd3 cxd3 h4 Kf7 c4 Ke6 e4 Ke5 c5 d5 f3 g5 Kf2 d2 Kg3 d3 a5 Kd4 e5 Ke3 c6 d4 e6 b3 f4 b2 c7 Nc6 f5 Nh6 f6 Bg7 a6 Bd7 c8B Nf5+ Kg2 g3 Kh3 g2 f7 Qb6 a7 Qa6 Na3 b1R f8N Rb6 Ne2 g1B Ng6 Rf8 Qb3 Bf2 Bb2 d1B Ng1 Bf3 Qa2 d2 Qd5 d1Q Bc4 d3 Ne2 d2 Nd4 Qc2 Bb3 d1N Rg1 Bh1 Kg4 Rf7 Bc3 Nb2 Ba5 Nd3 Nf8 Ne1 Nc4+ Kd3 Rg3+ Be3 Qd6 Qg2 Nb5+ Ke2 Nba3 Rb4 Bc7 Rb6 Bd8 Bc3 Na5 Nfd4 N3c4 Rf5 Kh5 Rf1 Kg4 Be8 Bd7 Ndc2 Qb4 Na1 Qd6 Ne7 Bb5 Nc6 B5a4 Bd7 Bc7 Rd8 a8B Rc8 Ng6 Rcf8 Bd8 R8f5 Nf8 Rd5 Nb2 Rd2 Nbc4 Ra2
3nb1NN/3nq1k1/RnNbp1N1/Q1pB4/1rr3K1/6bP/bRPp1r1R/1q6 w - - 0 1 illegal: No extended proof kernel
bB1R3Q/3Pp2b/K2r1p1b/1Nb3nB/B6n/2N1P2r/N3Bpkn/q2r1q2 w - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 f4 dxc4 g4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 d4 Kd7 Kd2 Ke6 h4 Kd5 g6 Ke4 e3 b5 d5 c5 d6 f6 d7 c3+ Kc2 f3 Kb3 f2 h5 g3 a5 g2 h6 c2 a6 c4+ Kb2 b3 Ka3 b2 Kb4 c3 a7 Na6+ Ka3 b4+ Ka4 b3 Kb5 Nc7+ Kb6 Ne6+ Kb5 Bb7 h7 Qa5+ Kc4 Qa1 Kb5 Ng5 g7 Nh6 g8B Nf5 Bf7 Nh4 Be2 Bh6 Bfh5 Bd5 Bd2 c1B Qe1 c2 Bc3 Bd2 Be5 c1Q Bb8 Bb4 Rh3 Ba3 Ka6 Bc5+ Qa5 Qf1 Nc3+ Kf5 Rh1 b1B Na2 Ke4 Qd8 b2 Qe8 Bc2 Qf8 b1R Qc8 Rd8 h8N Rd1 Nf7 Rh8 Rh2 Rh7 Qh8 Bb1 Bb5 Bd3 Ne2 g1N Rh1 Bc2 Ba4 N1f3 Rg1 Nh2 Nd6+ Kd3 Nb5 Ke4 Rg4+ Kf3 Nec3 Bb1 Rc4+ Kg2 Be2 Bb6 Rc8 Bc5 Rd8 Bc2 Bd6 Rb8 a8B Rb6+ Ka5 Bf3 Bb8 Rbd6 Bd5 Bfe4 Bf7 Ba8 Bfh5 R6d5 Qg8 Rh8 Ka6 Bh7 Qe6 R5d2 Qc6+ Rd5 Qc8 Rd6+ Ka5 Rg8 Rf8 Nf7 Qd8 Rg3 Rg8 R6d2 Ka6 Ng5 Qf8 Rd3 Qg7 Rh3 Rd8 R3d2 Qh8 Rd6+
1b2q3/bR2N3/1Q2nr1b/3n1p2/bBP1n2r/RK1p2bR/2pP1b2/Nk2NR2 w - - 0 1 illegal: No proof kernel
N2rnk2/Krq5/1N1p1p2/Nb3R2/2RPr1p1/rbN1r1r1/3PR1QB/b3n3 w - - 0 1 illegal: Other
1Q4R1/2r1Rn1b/p2K3b/Np1p3n/Nr4P1/R2b4/2kP1qBn/nN1N1nn1 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 b4 gxh4 b5 Be7 a5 Bf8 Bb2 b6 Bd4 bxa5 b6 a4 b7 Qg5 Bc5 Qd8 Bb6 cxb6 Kf2 Ke7 Kf3 Kf6 Ke4 d5+ Kd4 Kf5 c4 h5 g3 a3 e3 a6 c5 a2 c6 h3 c7 b5 Rh2 h4 Bc4 f3 Na3 f2 Rb1 a1N Rb3 f1N Rb2 Ra7 Qa4 Nf6 Re2 h2 Nb1 h1N Nc3 h3 Rc2 h2 Nd1 Nbd7 b8N Ne5 Rc3 Nh5 Qb4 Nf2 Ra3 h1B Qd6 Qf6 Kc5 Ke4 Nc6 Nh3 Na5 Bf5 c8N Bh6 Nb6 Nh2 Na4 Bh7 Qb8 Qf2 Kd6 f5 g4 f4 Re1 f3 Bf1 Rf8 Bg2 Rf4 Ne2 Ng1 Nec3+ Kd3 e4 Rc7 Nb1+ Kc2 Re2 Nd7 e5 Rb4 e6 Ne5 e7 Nf7+ Ke6 Bd3 e8R Bh7 Rg8 Bd3 Bh3 Bg2 Re5 Bh7 Re4 Bf1 Bg2 Bd3 Re2 Qg3 Re4 f2 Re3 f1N Re4 Ne5 Kd6 Qf2 Re2 Ng6 Re3 Nh8 Re7 Nf7+
1K6/2bq2n1/R2Np2Q/6rr/b1pB1Bn1/2BpP1nn/2B1P1nr/1Nk2N1r w - - 0 1 illegal: Other
1R2n1b1/pNR2n1q/rb1pb1P1/3Pk1rp/4bNR1/1r1B2rQ/N7/1R2K1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 f5 c5 b5 e6 Ba3 exf5 Bb4 cxb4 Rh2 f4 Rh3 Ke7 Rh1 Ke8 e4 Ke7 c4 Kd6 g4 h5 d4 f5 b6 a3 g5 f3 b7 h3 Bd3 f4 Kf2 a2 Ne2 h2 Ng1 b3 Qc2 b2 Nd2 b1R Nb3 Qe7 Qb2 Nf6 Qc2 Qh7 Na5 Rb3 Qd1 Rg8 Qe1 Nc6 b8N Nd8 Na6 Nf7 Qf1 Ne8 Rb1 a1R e5+ Ke6 Nb4 Bc5 Ke1 d6 Qg2 Bb6 Nb7 Ra6 c5 Bd7 c6 f2+ Kd1 f1N c7 f3 c8R f2 Ne2 Ng3 Rc7 f1B Ke1 Rg6 Rg1 h1B Na2 Rb8 Qh2 Be4 Nf4+ Kf5 e6 Ne2 e7 Be6 Rg4 Ng1 Qh3 Be2 Bb5 Rg3 d5 B2d3 Bc4 Ke5 Bb5 Rf6 Bc4 Rf5 g6 Rg5 Bb5 B4f5 Bc4 Bde4 Bb5 Nh6 Bd3 Bg8 Kd2 Nf7 Ke1 Nf6 e8R+ Be6 Rd8 Ne8 Rdc8 Bc5 Na5 Rb7 Rb8 Rb3 Nb7 Bb6
1q1r3B/p1p1Rr2/1r1Q3b/2bn3k/R6p/KnP2n2/5P1b/1RNbNNNr w - - 0 1 legal: proof: e4 b5 h4 d5 a4 dxe4 h5 bxa4 h6 f5 Bc4 f4 Ke2 f3+ Ke3 gxh6 Bf1 h5 Be2 Kd7 Kd4 fxe2 Kc4 h4 Kc3 Ke8 Kb4 Kf7 g4 Kg6 d4 e1R d5 e5+ d6 h5 g5 h3 b3 h4 Nf3 a3 Bf4 h2 Ng1 a2 Nd2 e3 Nf1 e2 Ka3 e4 b4 e3 b5 Rh6 b6 Nc6 b7 Kh5 b8N Na5 g6 Ne7 d7 Nb3 g7 Rb6 g8R Bh6 Qd6 Nd5 Nc6 Bb7 Rg7 Qb8 Rb1 a1B d8N Be5 Ne6 Bc8 Ng5 Bg4 Rf7 Rd1 Re7 e1N N5f3 e2 Be3 Rd4 Bg5 Rf4 Ncd4 Rf7 Bf6 Bg3 Bh8 Bgf4 Ne5 Nf3 Nd3 e1B Nc1 Bed2 c3 Bde3 Nc2 Bc5+ Kb2 Bf5 Ne1 Bc2 Ra1 Bd1 Ra4 Qe8 Nge2 Rd8 Rg1 h1R Ka2 Rh3 Rh1 Bh2 Ng1 Qd7 Kb2 Qc8 Ka2 Qb8 Kb2 Bd4 Ka3 Bc5+ Ka2 Bd2 Nge2 Rff8 Ned3 Ra6 Ne3 Bc2 Re1 Bg1 Nf1 Rf4 Rd1 Rh2 Ne1 Rb6 Ncd3 Rh1 Rb1 Rf7 Ndc1 Bh2 Ng1 Bd1 Kb2 Bh6 Ka2 Nb4+ Ka3 Nd5+
q4r2/1Pp1qrN1/r2n4/qq1pR2Q/k1pP2R1/6RN/Nb3n1r/1K2BR1b w - - 0 1 legal: proof: c4 g5 f4 e5 b4 exf4 h4 gxh4 e3 a6 c5 b6 b5 bxc5 b6 Ke7 Qa4 Ke8 Bb5 axb5 Qd1 c4 d4 f5 Kd2 h5 Kc2 b4 a4 h3 g4 f3 e4 b3+ Kb2 h2 a5 f4 e5 f2 a6 f1Q g5 f3 e6 h4 g6 f2 g7 h3 a7 Ba3+ Kc3 b2 Kc2 Nf6 g8N Ng4 e7 Bb7 Qe1 Nc6 Qb4 Nce5 Qb5 Nf7 Qb4 Nd6 Qd2 Qe1 Qb4 f1R Qa5 Nf2 Nh6 Rf8 Nf5 Bf3 Qe5 Qa5 Nc3 Rf7 Bg5 Bb7 Bh4 b1Q+ Kd2 Qbb4 Kc2 Bb2 Ra3 Qbb5 Na2 Bd5 Rg3 Bg2 Nf3 Rf8 Rg1 h1R Ng5 Rh2 Qe2 Rf7 Qh5 Bh1 Rg4 Ra1 Rf1 Rc8 a8R Rb8 Ra7 Ra8 Rb7 Ra6 Nb4 Ra3 Kb1 Rf3 Ra7 Qa8 b7 Rf4 Qh6 Rf3 Na2 Rf8 Ng3 R3f7 Nf5 Nc8 Rgg1 d5 Nb4 Kd7 e8R Rg2 Ng7 Ne4 Qg6 h2 Qh7 Re6 Nd3 Kc6 Rd8 Qab4 Ne1 Qa6 Ngf3 Qbb6 Ng5 Kb5 Nd3 Rd2 Qg6 Bg2 Be1 h1Q Nc1 Qh4 Nh3 Bh1 Qh5 Rh2 Na2 Nf2 Rd6 Qe7 Rg4 Rg6 Rf6 Qa4 Ra6 Qaa5 Rf3 Ka4 Rfg3 Qb5 Re6 Rgf6 Re2 Ra6 Re5 Nd6
5Q2/1NqNP1K1/n1nbpp2/n2RB2b/1BkrP3/1brp1nB1/N2q4/3B3b w - - 0 1 illegal: Other
5Nb1/R3R3/rkpqr3/2N1nB2/1nPpK3/bn1b1p2/QqP1RN2/1n2N1b1 w - - 0 1 illegal: Other
R2nKB2/5rnq/2pRp3/1n1QR2b/Ppb2b1n/1RP1NqN1/r5bN/6k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 Ke2 Kd7 h4 Kd6 d4 Kd5 h5 b5 c3 f5 a3 g3 g6 f3+ Ke3 b3 Kf4 b4 Kg5 f4 h6 b2 g7 f2 Kg6 f1B Kf7 f3 h7 e3 Qc2 f2 Qb3+ Ke4 d5 g2 d6 e2 d7 e1Q Bf4 Bc4+ Kg6 f1B Bd6 Ke3 Bg3 Qd1 Nh3 g1N Qa2 Nf3 Nf4 Nc6 Ne2 Nh6 g8N Nf5 Rh5 Bg2 Nd2 b1N Nf6 Bh6 Bd6 Kf2 Nf1 Bf4 Nd5 Rf8 h8R Rf7 Neg3+ Kg1 Nde3 e6 Rg5 Qe7 d8R Bd7 Nh2 Be8 Qd2 Qf1 Qd5 Ra6 Ra8 Nd8 Ra2 c6 Rb2 Qb7 Bf8 Qe2 Rh7 Ra7 Rg7 Qc7 Rb3 N3h4+ Kh7 Qf3 Kg8 Nd2 Rh7 Ne4 Rgh5 Ned6 a4 Nb5 Rh8 Rf6 Rg5 Bh5 Rh7 Qb7 Rd7 Rf7 Rd6 Rf6 Bh6 Rg6+ Kf8 Qh7 Bg7 Rf7+ Ke8 Ne7 Re5 Nef5 Nh1 Rg3 Bf8 Rh3 Nhg4 Rh2 Ng3 Bh1 Ra3 Ra2 Nh2 Bg2 Rb3 Ng7+
1K1b2B1/r4Pbp/n6p/1N1b3N/2rNRn1q/2Q1p3/1Rp1Pq1N/knR2r2 w - - 0 1 legal: proof: g4 d5 b4 a5 c4 dxc4 h4 axb4 g5 f6 g6 Be6 h5 Ra4 h6 gxh6 Bb2 Ra8 Bd4 Bf5 Be3 Bc8 Bg5 fxg5 f4 Kd7 Kf2 Kd6 Kf3 Kd5 a4 Kd4 g7 b5 f5 c5 a5 e5 d3 c3 a6 b3 f6 g4+ Kg3 b4 a7 c2 Nd2 Kc3 d4 Kb2 d5 c1B d6 e4 Kf4 g3 Ke5 c4 d7 c3 Bg2 c2 Rh4 Bb7 Qe1 Na6 Ngf3 Ne7 Kd6 Bd5 g8N Bg7 Nf1 Bg5 Rc1 e3 Nd4 Ng6 Re4 Nf4 Qc3+ Ka2 Bh3 b2 Nh2 b1N Be6 g2 Nb5 Rc8 a8R g1Q Rb8 b3 Rb6 b2 Bf7 Qe8 d8N Rc4 Ne6 Qf2 Ned4 Ka1 Be6 Qh5 Bf7 Nc5 Kc7 Qhh4 Kb8 Bf8 Ne7 Bg7+ Bg8 Na6+ Ka7 Qh5 Nef5 Qh3 Ng3 Qh4 Bf7 Rf8 Bg8 Rf7+ Rb7 Rfc7 f7 Bd8 Nh5 Nc5 Kb8 Rd7 Rb6 Ra7 Nc7 Na6+ Kc8 Ka2 Re1 Nd2 Rb7 b1R Rb2+ Ka1 Rg1 Nc5 Ncb5 Rd1 Kb8 Rc1 Rd1 Nb1 Rd2 Re1 Rd1 Rf1 Rc1 Na6+
2B2nBq/3pPK2/2R5/5Nr1/NQBqn3/2pqB1p1/1rPb1rp1/2nbN1k1 w - - 0 1 illegal: No proof kernel
B1R1QBbN/1K2nnRp/1p6/4bbBR/p3qr2/P1pnqr2/1P1k4/1q4B1 w - - 1 2 legal: proof: e4 d5 c4 dxc4 Be2 f5 Bf1 fxe4 h4 g5 Qg4 gxh4 Na3 c3 Qd1 c2 Nb1 cxb1Q Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 e5+ Kc4 c5 Kb5 Kd5 g4 Kd4 d3 c4 f5 a4 f6 c3 a3 b6 f7 e3 g5 h3 g6 e2 g7 e1Q Bf4 h2 Qh5 e4 Bg2 e3 Nh3 e2 Ng5 Ne7 g8R Bg7 f8B Nbc6 Qe8 Ne5 Nf7 Bf5 Bd2 Rb8 Ba8 Qd5+ Ka6 Qe4 Rg1 Bf6 R1g7 h1B Bf4 Qec1 Bh2 Ke3 d4 e1N d5 N1d3 d6 Kd2 d7 Qce1 d8B Q1e3 Bg1 Bg2 Nh6 Nf7 Ka7 Be5 Ka6 Nc6 Bg5 Rd8 Kb7 Rd4 Rg6 Rb4 R8g7 Ne7+ Rc6 Qc2 Rf1 Qb1 Rf4 Bf3 Rh4 Bd1 Rh1 Bb3 Rh4 Qf3 Rh5 Rf4 Ka6 Qfe4 Rc8 Nd8 Nf7 Rg8 Nh8 Nf7 Bh6 Bbe6 Rg3 Rgg4 Bg5 Rf3 Ka7 Qc4 Kb7 Rgf4 Bh4 Qcd4 Rg7 Ba2 Bg5 Qde4+ Ka6 Nd8 Ka7 Bg8 Ka6 Nf7 Ka7 Nd5 Kb7 Ne7+
N5k1/1Q2K3/rN4pp/npP5/1Rb3PN/q1R5/Rb1b1Brp/1n1nqr1N w - - 0 1 illegal: No proof kernel
2Rq1k1r/Bp2q3/pn3pB1/bPQ5/B2NnKp1/nPBqr3/8/1bNb3N w - - 0 1 illegal: Other
1Nr4N/p2q2RK/1p1RNq2/P1rn4/2b3nB/pPp1N2r/2q1R3/k1bb1Q2 w - - 0 2 illegal: No proof kernel
2bBN3/p1N2B2/2K1R3/Nbb3qr/1Q1p1ppr/6Pn/b2b1Pn1/1Br2k1B w - - 0 2 legal: proof: a4 b5 b4 bxa4 b5 e5 b6 cxb6 Ra2 b5 Ra1 b4 d4 exd4 Bb2 h5 Bc1 h4 g3 h3 Qd3 Ba6 Bf4 Bb5 Kd2 Na6 Na3 Nh6 Nf3 Ng4 Bg2 Rc8 Rag1 Be7 Bf1 Bf8 Nb1 Nf6 Ke1 Ng8 Qd1 Ra8 Bc1 Nb8 Rg2 Ba6 Ng1 Bc8 Bf4 hxg2 Be3 Rh6 Bc1 Rh8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 c4 g5 h4 f5 c5 d5 c6 a3 c7 g4 e3 d3 h5 d2 h6 f4 h7 a2 Nf3 g1R Nd4 a1B Na3 b3 Bg2+ Kd3 e4 b2 e5 b1B e6 Nd7 e7 Nb6 e8B Ba2 Nc6 d4 Qe1 d1B Bd2 Nh6 Na5 Nc4 Bf7 Bc3 Kc6 Bc5 Nb5 Qg5 Rh5 Rf1 Bh1 Ba4 Qb1+ Ke2 Qb4 Rc1 Rh4 Rd8 h8N Kf1 Be1 Rd5 Rh2 Be6 c8B Ne3 Rh5 Ng2 Rh3 Bd1 Nc7 Be2 Ba6 Bd2 Bd3 Rg8 Bb1 Bc8 Rh5 Rg7 Rh2 Rh7 Rh5 Qg8 Re5 Qg5 Re6 Re5 Ng6 Rf5 Ne7 Rd5 Ng8 Rh8 Bfg6 Nf7 Nf6 Rh4 Bh5 Qf5 Nfe8 Ng5 Bg6 Nh3 Bf7 Qg5 Qb3 Be3 Bb4 Bd2 Qc4 Bb6 Be7 Bc5 Qb4 Bec4 Bd8 Rf5 Na6 Bb5+ Kc7 Qg6 Nb3 Bc4 Na5 Rfh5 Kc6 Qg5 Nac7 Bb5+
2b1Nr1N/Q2np1nB/2qN4/4p1k1/r2p1q1p/bR1Pn1B1/K1PnB2b/5B2 w - - 0 1 illegal: No proof kernel
4rk1N/2bn1q2/1pb1rb1R/2p2nNp/2P3PK/NB4p1/2Q1r3/R2RNqr1 w - - 0 1 legal: proof: e4 f5 h4 a5 g4 g5 b4 axb4 f3 gxh4 e5 f4 Bb2 d6 Bd4 dxe5 Bf2 e4 Bg3 fxg3 c4 c5 d4 h5 a4 e5 d5 b3 d6 b6 f4 e3 f5 e4 a5 b2 a6 h3 a7 e2 f6 h2 Qb3 Bb7 Na3 Nh6 Nf3 Qd7 Qc2 Nf5 Rg1 Bh6 f7+ Kf8 Rd1 Qc7 d7 b1Q d8N h1R Bg2 Nd7 Ne6+ Ke7 f8N Re8 a8R Bc6 Rb8 Bf4 Neg5 Rh6 Rf1 Re6 Ng6+ Kf6 Ra8 Kg7 Nh8 Kf8 Rb8 Rg1 Rd8 Nb8 Rd6 Qf7 Bh1 Nd7 Bg2 R6e7 Rh6 Bc7 Kd2 Qa1 Ne1 Re6 Bf3 e3+ Kd3 Bb7 Bc6 Qaf6 Ba4 Bc6 Bb3 Qa1 Ng2 e1B Ke2 Bc3 Ne1 B3e5 Kd3 e2 Kd2 Nd6 Ke3 Bf6+ Kf4 Qb2 Ng2 e1R Ra1 R1e5 Rfd1 Qb1 Ne1 Re2 Ne4 Be5+ Kg5 Qc1+ Kh4 Bf6+ Ng5 Qf4 Rdb1 Qf1 Rd1 Nf5+
nr3qb1/b3q2n/1p6/pPpBN2K/P1qN3q/3p3k/1RB5/nN1Q1rBN w - - 0 2 legal: proof: f4 g5 h4 gxh4 d4 e5 d5 exf4 d6 Bh6 Nh3 Bg7 Ng1 Bf8 c4 cxd6 c5 Ke7 c6 Ke8 a4 Ke7 b4 Ke8 Ra2 Qb6 Rc2 Qd8 Rc5 dxc5 Kf2 Ke7 Kf3 Kf6 Kg4 d5+ Kh5 Kf5 g3 a5 e3 f3 b5 h3 c7 h2 Bb2 d4 Nd2 d3 Bd4 b6 Qb1 f2 Qb2 Qe7 Nh3 Be6 c8N Na6 Nf4 Nc7 Qb4 Rb8 Bg2 f1N Bc6 Na8 Nb1 Nd2 Bd5 Nb3 Ne2 Na1 Qd2 h6 Qd1 Nf6+ Kh4 h5 Na7 Bh6 Nc6 Rhf8 Ne5 Bf4 Bb3 Bd5 Bc2 Bb3 Rf1 Bd5 Rf2 h1Q+ Rh2 Qe4 Rf2 Ba2 Rg2 Qd5 Rh2 Qc4 g4+ Ke6 g5 Kf5 Rg2 Nh7 Rf2 f6 g6 Bb3 g7 Rf7 Kh3 h4 g8B Kg5 e4 f5 Rg2+ Bg3 Be3+ f4 Bg1 f3 Nd4 f2 Rh2 Rff8 Bd5 f1Q+ Rg2 Qff7 Re2 Qfe8 Rh2 Rf1 Rd2 Kf6 Kg4 Q8f8 Kh5 h3 Nec6 h2 e5+ Kg7 e6 Kf6 Ne5 h1Q+ Rh2 Qa7 e7 Ba2 Ndc6 Kf5 e8N Qae7 Nd6+ Kf4 Nf5 Qhe4 Re2 Bh2 Ne3 Kg3 Nf5+ Kh3 Ncd4 Bb3 Ng3 Q4h4+ Kg6 Ba2 Nh1 Nc7 Nec6 Rd8 Bf3 Qb4 Bb3 Na8 Rb2 Bb8 Ne5 Ba7 Bc2 Rb8 Be4 Bg8 Bd5 Qhe1 Kh5 Qc4 Bf7 Qe4 Bd5 Q4h4+
1b3Rr1/1P2R3/r1nrR3/B1R1p3/1pbr1NB1/Bb1n2k1/KPpp3q/2Q4q w - - 0 1 illegal: Other
3qKnN1/k4p1P/b2qN2p/p6N/1nB1qB2/b3r2Q/1pRn1n1P/2B3rB w - - 0 1 illegal: Other
1b3Rbn/KR1B1prR/P2p2q1/p1r5/2q2R2/1Nr1BPk1/2Q1n1pn/2n4B w - - 0 1 illegal: No proof kernel
k1q1N2b/3pQ2R/2b2Rn1/2q1p1n1/Pp1r3N/r4B2/qnpPRn1K/1R4N1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 c5 fxe4 Ba3 b6 b5 bxc5 Bb4 axb4 Qb3 c4 Qc2 Ra7 Qd1 Ra8 g4 h5 f4 e5 Kf2 c5 Kg2 c3 a3 c4 g5 c2 f5 c1Q g6 e3 g7 e2 f6 e1N+ Kh3 c3 b6 Bb7 Kh2 h3 Qa4 h4 Bd3 Nc6 Be2 Nd3 Qc2 Qc8 f7+ Kd8 Qb2 Nh6 g8N Ne7 Nf6 Bg7 Qc2 Bc6 b7 Kc7 b8R Ng6 f8R Nb2 Qe4 Nf7 Rg8 Ng5 Bf3 c2 Nc3 Qb1 Qf4 Qa2 Rb6 Ra5 Ra6 Kb7 Rb1 Rd5 a4 Rd4 Rb6+ Ka8 Nd1 Rh5 Qf5 Bh8 Qe6 Rh7 Ne8 Rf7 Bg4 Rf3 Ne3 Rg3 Nf5 Ra3 Qe7 Bb7 Nf3 Bc6 Kg1 h2+ Kg2 Bd5 Rf6 h3+ Kg3 Qc5 Nh4 Bc6 Rhe1 h1Q Re2 h2 Rg7 Qf1 Rh7 h1N+ Kh2 Nf2 Ng1 Qac4 Ree1 Qa2 Bf3 Qa6 Re2 Qc8
n1Nb2Q1/1p1nq2B/B3Bn1r/4p3/1k2Pp2/3RR1Rb/b2r1PpK/B2n3b w - - 0 2 legal: proof: g4 c5 b4 g5 h4 gxh4 d4 cxd4 Nd2 a5 Ne4 axb4 Ng3 hxg3 e4 h5 c4 d5 a4 Kd7 a5 Kc6 a6 Kc5 a7 f5 g5 e5 g6 g2 g7 f4 Ne2 h4 Rh3 d3 Ra3 d4 Re3 h3 Qb3 h2 Bb2 h1B Nc3 d2+ Ke2 d1N Kf3 d3 Nd5 d2 Nb6 Nf6 g8B Nc3 Bh7 d1N Ba1 Bh3 Nc8 Na4 Qa2 Nbd7 Rad3 Rb8 a8R Nab6 Raa3 b3 Be2 Kb4 c5 b2 c6 b1B c7 Bd6 Qg8 Ba2 Rdc3 Ne8 Na7 Ng7 Bg6 Bf5 Ba6 Na8 Re1 Rh6 Bh7 Nf8 c8B Qe7 Be6 Rd8 Nc8 Ne8 Re2 Bc7 Re1 Bg6 Kg4 Rd2 Rg3 Nd7 Rad3 Bd8 Ree3 Bh5+ Kh3 Nef6 Kh2 Bg4+ Kg1 Bh3 Kh2 Bb6 Nd6 Ba5 Nc8 Bd8
8/B2p2pk/1NbBbr2/K3rnR1/1bqPn1B1/b1p2p1n/1P3RR1/1QB1n3 w - - 0 1 illegal: Other
2B2R1n/1K3p2/2R2pRQ/4B1pp/3PknBP/1nRb1p2/r2bb1rr/N6q w - - 0 1 illegal: No proof kernel
1r2qB2/2BpP1r1/2nP1p1r/5b2/1Bp2qBp/qpnN1N1R/2Q5/k1bKN3 w - - 0 1 illegal: No proof kernel
3R4/1p2nq2/pP1pNB2/r6Q/3nqBR1/RKb1r1Rb/pp4Pq/2bB3k w - - 0 1 illegal: Other
Q4r2/1rqB4/p1NB1p1p/1RBqR1p1/1n2Kbbn/p4n1B/2P1R1Pb/2k5 w - - 0 1 illegal: No proof kernel
b3NNb1/3rpr1n/2K2P2/b1p1Q1p1/p2rB1PB/2qB1N2/R2pB3/rn5k w - - 0 1 illegal: No proof kernel
1n1k2bN/n1p1R1B1/b1P1R2N/b1rNr2P/p3p3/5pN1/Kbp1nq2/2QR4 w - - 0 1 illegal: No proof kernel
7B/pRp4n/rN1NK3/1b1n3r/7b/1nPP2n1/QRqQr2N/1N4k1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 f4 exf3 a4 h5 a5 Qd4 a6 Be6 axb7 Na6 g4 g5 gxh5 gxh4 b8Q+ Kd7 c3 f2+ Ke2 Qa4 Kf3 Bf5 Qdb3 e5 Q8b7 Rd8 Kg2 e4 Qa8 e3 Qa2 Qd1 Qb3 e2 Bxe2 Re8 Na3 Re5 Nb1 Rd5 Bf1 Nb8 Ba6 Nxa6 h6 Kd6 d3 Ke5 h7 f1N Qb6 h3+ Kf2 h2 b4 Ne3 Kg3 Ra5 b5 Nf6 Ra2 Bd7 Rb2 Qc2 Qg2 Ned5 Bh6 Nc5 Qa6 Nb3 b6 Bb5 b7 Be7 b8N Re8 h8N Nh7 Kg4 Bh4 Qd2 Ra1 Qa2 f5+ Kh5 f4 Kg4 f3 Bg7+ Kd6 Kf5 f2 Bd4 f1N Nf3 Re2 Rg1 h1R Nd7 Rhh2 Nb6 Rh1 Nh2 Ng3+ Kg6 Ke6 Kg7 Kf5 Nf7 Ne3 Nd6+ Kf4 Qa6 Ra2 Kf7 Ra1 Bh8 Ra3 Ng4 Kf3 Nh2+ Kf2 Ke6 Ra1 Qa4 Ra2 Qc4 Ra6 Rf1+ Kg2 Rf8 Kg1 Rb8 Rf2 Rb7 Nd5 Nf1 Rhh2 Qa4 Rf5 Qa2 Rg2 Nh2 Rh5 Rb8 Rf2 Rb7 Re2+
1R2R1B1/R1QB4/q1q2QRP/1rnr2qb/PKnb4/4n1b1/4r3/4kNn1 w - - 0 1 legal: proof: d4 d5 b4 a5 e4 axb4 c4 f5 exf5 g5 cxd5 c5 Qf3 cxd4 Qd3 Bg7 Qd1 Bf8 g4 h6 f4 Ra5 f6 Ra8 f5 Nd7 Nc3 Nb8 Bf4 gxf4 Ne4 h5 g5 Ra6 Nf2 Ra8 Ng4 hxg4 Kd2 Kd7 h4 Kd6 a4 Ke5 g6 Ke4 h5 b5 h6 e5 d6 b3 f7 b2 g7 b1Q d7 b4 f6 d3 Ra2 b3 Kc3 Ke3 Ne2 Kf2 Nc1+ d2 Rg1 b2 Be2 f3 Kb3 g3 Kc3 g2 Ra1 e4 Rh1 g1N Bd3 e3 Qc2 e2 Ba6 d1R Qf5 e1B+ Kc4 Qc2+ Kb5 b1N Na2 Nd2 Qe6 Bc5 f8R Bd4 f7 Nc4 Rb1 Ne7 g8B Nd5 Re8 Qg5 d8Q Nd7 f8R Nc5 Nc3 Nde3 Qef6 Bg4 Qc7 Bh5 Bc8 Ra5+ Kb4 Qe4 Bd7 Qc6 Rh4 Rd2 Rc1 Re2 Rg4 Kf1 Rc2 Bg3 Nb1 f2 Nd2+ Ke1 Nf1 Rh7 Rb2 Re7 Ra8 Re5 Rfe8 Rf5 Ra7 Rd5 Nh2 f1Q Rb3 Qff5 Nf1 Qfe6 Rb2 Qa6 Rb3 Qec6 Rb2 Qf4 Rg6 Qg5 Rb3 Nd2 Ka3 Ba1 Rbb7 Bd4 Rbb8 Ndc4+ Kb4 Rb5+
1N6/qk1Kqnb1/1P3p1B/BQ1N2q1/4bqBn/q7/3Pq3/q1bQB1R1 w - - 0 1 legal: proof: e4 a5 a4 d5 c4 dxc4 f4 e5 Qe2 exf4 Nh3 b5 Qh5 bxa4 Qd1 Ra6 Ng1 Rd6 Be2 Rd4 Bf1 Rd5 exd5 f6 b4 Kd7 g4 Nh6 g5 Bd6 g6 Bf8 Ra3 Ke8 Rg3 Ng8 Rg4 h5 Bb2 hxg4 Qc2 Rh7 Bc1 Kd7 Qd1 Rh5 Nc3 Re5+ Qe2 Re7 Nb1 Rf7 gxf7 g6 Qd1 g5 Ke2 c5 h4 Kc7 d6+ Kb7 b5 g3 Kf3 a3 Ke4 a2 Kd5 a1Q b6 c3 h5 f3 d7 c2 Ke6 g2 h6 c4 h7 c3 h8Q f2 Rh4 g4 Ba3 c1B Qf3+ Nc6 Be7 a4 Qh7 g3 Rd4 c2 Qd1 a3 Nc3 a2 Nge2 g1Q Re4 g2 Nd4 Bg7 f8B Qh2 Qf5 g1Q Bb4 Qg5 Re1 Nge7 Ba5 Ne5 Nd5 N7g6 Be2 f1Q Bg4 Nh4 Nc6 Qhf4 Nb8 Qe2 Rg1 Nf7+ Qe5 Qc7 Ke7 Qc5+ Ke8 Qc7 d8B Bf5 Bde7 Bh7 Bc5 Be4 Bf2 Qd6 Qb2 Qa3 Qb3 Qae5+ Kd7 a1Q Qb5 Q3a2 Bab4 Qa7 Ba5 Ba3 Bd6 c1Q Rg3 Bf8 Be1 Qcc3 Bdb4 Bc1 Rg1 Qca3 Be7 Bg7 Bf8 Bh8 Bh6 Bg7 Nb4 Qc5 Nd5 Qe7+
6bR/1N3b1Q/1P2r1Rr/2R3b1/K5k1/Rr1bP1Bq/N1pQr1b1/1bb5 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 bxa4 c4 e5 g3 exf4 Bh3 Be7 Bf5 dxc4 Bc2 Bc5 Bb3 Bf8 g4 axb3 h3 g5 Nf3 f5 Ng1 f3 Ra4 f4 Ra5 Nh6 Ra1 Nf5 gxf5 Nc6 h4 g4 Ra2 Nd4 Ra5 Ne6 Ra1 Ng5 hxg5 Bc5 Ra2 Bd6 Ra1 Bf8 d4 Kf7 Kd2 c5 Kc3 h5 b5 a5 f6 Ke6 b6 Kf5 g6 h4 f7 h3 e3 f2 g7 f1B g8Q g3 d5 f3 d6 a4 d7 b2 Qd6 f2 Qh6 a3 Ne2 h2 Qgh7+ Kg4 Nf4 g2 Qe4 g1R Ra2 Qh4 d8R Bd3 Qec6 f1B Qhd6 Be7 f8R Rh6 Nd5 Qh3 Rf5 Bg5 Re8 Bg2 Bd2 Be6 Rb8 Re1 Nc7 Bg8 Nb5 Re2 Rg1 h1B Be1 Ra4 Ra1 a2 Qcc7 Ra8 Rbf8 Re8 Qh7 Ree6 Bg3 Bd5 Qdd7 Bhg2 Nd6 Bf7 Nb7 Bg8 Na3 b1B Nc2 Bf7 Kb2 c3+ Ka3 c4 Nb4 c2 Ka4 c1B Rh8 c3 Qd8 Bg8 Qd6 Ref6 Qdd7 Bdf7 Rc5+ Re6 Qd8 Bde4 Qd2 Bbd3 Rb1 a1R+ Na2 Beg6 Rbb5 Rb1 Rb3 B6e4 Ra3 Rb3 Rf1 Bb1 Rf6 c2 Rg6 Bd3
n3BN2/3B2R1/2q1rQ2/2r3B1/b1n1k1np/rqQ3BP/1bqPp2K/3R4 w - - 0 1 legal: proof: e4 c5 g4 d5 a4 dxe4 b4 b5 bxc5 bxa4 Bg2 f5 Na3 fxg4 Nb5 Bd7 Nxa7 Bc8 Bf1 Ba6 Nc8 Bxc8 f4 Kd7 Kf2 Kc6 Kg3 Kd5 f5 h5 c6 g5 c3 e5 f6 a3 f7 a2 h3 h4+ Kg2 g3 c7 g4 Qe1 e3 c4+ Ke4 c5 e2 c6 Bd7 c8B Nh6 c7 Na6 Bb2 Qe8 Rc1 a1N Rc5 Nb3 Qf2 e1R Qf6 Ba4 Ba1 Na5 Bb5 Bg7 f8B Qc6 Bb2 Nc4 Bd6 Re3 Be6 Rhc8 Kf1 g2+ Kf2 Ra3 Bd7 g3+ Ke2 Ng4 Nf3 g1Q Nd4 g2 Ne6 Qb1 Rd1 g1Q Nf8 Qg3 Kf1 Qb3 Kg1 Q1c2 Rd5 Re8 c8Q Re6 Bd4 Rb8 Be3 Nc7 Bg5 Na8 Rd3 Rb7 Rg3 Rc7 Rg2 Kd3 Kh1 e4 Bg3 e3 Be8 e2 Bd7 Ne3 Kh2 Ke4 Rgg1 Qd5 Be8 Rc5 Bbd7 Qc6 Qc7 Bh8 Qa5 Bg7 Qac3 Ng4+ Kh1 Qc7 Qa5 Qb5 B5f4 Qcb8 Bh2 Q8b7 Qe7 Bc3 Qf6 Nh6 Rg7 Qc7 Bg5 Ng4 Bg3 Bb2 Qac3 Qcc6 Kg1 Qbb3 Kg2 Nf2 Kh2 Ng4+
1Kn3r1/r1p1N3/k3b3/N1rBPrr1/2RPq3/4bqp1/Rq1Q1RQ1/6R1 w - - 0 1 legal: proof: g4 b5 c4 d5 b4 dxc4 a4 a5 f4 h5 f5 hxg4 bxa5 b4 f6 Nd7 a6 Nb6 a5 exf6 axb6 f5 Bb2 f4 Bf6 Qd4 Bd8 Qxd8 Kf2 Kd7 e4 Kc6 h4 Kb5 d4 g5 b7 f5 h5 g3+ Kf3 g2 h6 g4+ Kf2 b3 e5 b2 h7 f3 Ke3 f2 a7 f4+ Ke4 f3 Ra2 Bh6 Ne2 g1R Ng3 Be3 Bg2 f1R Qd2 f2 Nf5 c3 Na3+ Ka6 b8R c2 Ne7 c1R Rb4 Be6 Rc4 Qb8 Bf3 Rg3 Rg1 Rc2 Bh1 b1Q Bg2 Q8b2 Bh1 Bd7 Kd5 Be6+ Kc6 Rc3 Bd5 Qe4 Qe2 Rb1 Qd2 f1Q Rc5 Rf8 Nc4+ Ra3 Na5 Rc1 Rc3 Rf5 Rc5 Qff3 Rc4 Bf7 Kd7 Ra4 Kc8 Ra3 Ra4 Rc5 Rb4 Be6+ Kb8 Qa1 Rc4 Qb2+ Nb7 Kb5 a8Q Ra7 Nc8 Ne7 Na5 Rhf8 h8R Rg8 Rh2 Rgg5 Nb6 Nc8 Rf2 Rh3 Qb7 g3 Qa8 Rh8 Qb7 Rhg8 Qa8 Nd6+ Nc8 R8g6 Ne7 Nc8 Rb1 Kb6 Rg1 Rg8 Rb1 Qg2 Rg1 Qeb1 Bc6 Qh1 Bd7 Qh5 Qg2 Qe4 Bc6 Qhf3 Bd5 Ka6+
Q2N4/BR1q4/b3Qbk1/P2rP1b1/r1n2b2/1Q3p2/p1K1r2p/1RQ2B1n w - - 0 1 legal: proof: e4 g5 h4 gxh4 b4 a5 a4 e5 c4 d5 cxd5 b6 Na3 b5 Nc4 bxa4 f4 exf4 Ne3 fxe3 bxa5 Qd7 Qc2 Qe7 Qd1 Qd8 d4 h5 g4 c5 g5 f5 e5 Kf7 d6 a3 d5 h3 d7 h2 d6 h4 Bb2 c4 Qd4 c3 Kd1 e2+ Kc1 e1B Qc4+ Kg6 Qd5 h3 Qc6 f4 Ne2 a2 Qb5 f3 Qb7 c2 Qc6 Bh4 Ng1 Ne7 Ne2 Ba6 Bd4 Nf5 Rb1 Bg7 Ba7 Ng3 Nd4 Bf6 Ne6 Rg8 Kb2 c1B+ Kc2 Bf4 Rb7 Qe7 d8Q Nd7 Qf8 Nb6 d7 Nc4 d8Q Qd7 Qdb6 Rd8 Qb3 Rh8 Rg1 h1R Qfa3 h2 Qc1 Qe7 Qcb6 Rd5 Nd8 Qd7 Qe6 Rf8 Be2 Rf7 Rd1 Re1 Bf1 Re4 Re1 Nh1 Rd1 Kh5 g6 Bhg5 g7 Kg6 g8Q+ Rg7 Nf7 Re3 Qa8 Rh7 Nd8 Rh4 Qcb2 Rg4 Rb1 Re2+ Kc3 Bd2+ Kc2 Rgd4 Qc1 Bdf4+ Kc3 Nd2 Kb2 Ra4 Kc2 Nc4+
7k/1QN4P/2N1p3/1P5R/1Bpq3p/2r4b/qbKRRrRn/1r2b1Qr w - - 0 1 legal: proof: e4 d5 h4 b5 c4 dxc4 a4 a5 axb5 f5 h5 fxe4 h6 gxh6 Qc2 h5 Qd1 h4 g4 h5 b4 a4 Ne2 h3 Ng1 h4 Bd3 Nd7 Bc2 Ndf6 Bb3 Nh5 gxh5 axb3 d4 Kf7 Kd2 Kg7 f4 c5 d5 h2 d6 e6 b6 b2 d7 c3+ Kc2 e3 b7 e2 b8Q e1R h6+ Kh7 b5 c4 f5 Re2+ Bd2 Bb4 f6 Bb7 f7 Ra3 f8R Rf2 Nf3 Nf6 Rg1 h1R Ra2 Ng4 Rf5 Nh2 Rg2 Rg8 Ne5 Kh8 h7 Qf6 Nc6 Qd4 Qa7 Rb3 Rh5 Rg3 Qg1 Re3 Nd8 Bf3 Qa6 Bg4 Nc6 Bh3 d8R+ Bf8 Rdd5 Bb4 Qb7 Rd3 Kd1 Rg3 Rde5 Rgf3 Re2 c2+ Ke1 c1B Kd1 Rfd3 Nc3 b1Q Nd5 Rdc3 Nc7 Ba5 Rb2 Qa2 Rc2 Rb1 Rb2 Rd3 Kc2 Rb3 Bb4 Rbf3 Be7 Bad2 Bb4 Rc3+ Kd1 Be1+ Rbd2 Rd3 Rg7 Ra3 Rg2 Bb2+ Kc2 Rc3+
1rq1N2k/3r2p1/pK2N1P1/1b6/1Np1q2n/R2p2r1/NQ1PR1b1/3q2QB w - - 0 1 legal: proof: g4 e5 a4 b5 b4 bxa4 f4 exf4 g5 h5 b5 Ba6 c3 Bb4 cxb4 Bc8 b6 a3 b5 a6 b7 Rh7 b6 Rh8 Bb2 axb2 Qc2 Nc6 Qf5 Na7 Qg4 hxg4 bxa7 Rh5 Nf3 Rh6 Ng1 Rh8 Kf2 Kf8 b8Q c5 h4 f5 e4 d5 e5 d4 h5 g3+ Kf3 c4 e6 g2 h6 Ne7 h7 Ng6 Ne2 g1R Nc1 Bd7 Ra3 Qc8 Nc3 b1Q Qb2 Bb5 Bg2 Rb8 Rh2 Nh4+ Kf2 f3 Nd5 f4 Nb4 Rg8 Bh1 Rg3 a8N Qf5 Nc7 Ra8 e7+ Kf7 Bg2 Rd8 e8N Rd7 Ne6 Qc2 Nca2 Kg6 Kf1 f2 Ke2 f1B+ Kf2 f3 Bh1 Nf5 h8Q Qe4 Qh3 d3 Qg2 Nh4 Qg1 Kh7 g6+ Kh8 Rg2 Qd5 Ke3 f2+ Kf4 Qf3+ Ke5 Qg4 Rh2 Bh3 Rg2 f1Q Rh2 Qfd1 Re2 Rb7 Kd6 Bg2 Qc5 Qe4 Qg1 Qd7+ Kc5 Qc8+ Nc6 Rf7 Kb6 Rd7 Ncb4 Rb8+
B5r1/1R2nRb1/2P1q3/p2p3p/2pPB1q1/1q2NQ2/1q5Q/1nBBk1Kq w - - 0 1 illegal: No possible last move, all moves rejected
b2q4/1nq1B3/4Q1K1/4r1QB/3nr1nr/4PPRR/1kr1Nbnb/3rB2B w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 a4 gxh4 g5 c5 g6 b5 axb5 d3 Nd2 fxg6 Ndf3 g5 Nd4 cxd4 Bd2 g4 Be3 Nh6 Bc1 Ng8 Kd2 Kf7 b4 Kf6 c4 Ke5 c5 d5 b6 a5 b5 h5 c6 h3 b7 a4 f3 a3 b6 g3 c7 h2 Ra2 h4 Nh3 g2 Ra1 g1B Rb1 a2 Qb3 a1N Qa4 Nb3+ Kd1 d2 Kc2 d1N Kd3 Bc5 Qb4 Ra4 Nf4 h3 Qc3 Rh5 Qe1 Nf6 Ra1 Na6 b8B Ng4 b7 Nde3 Qd2 Ng2 Kc2 d3+ Kc3 Re4 Ra4 Bcf2 Qe3 d4+ Kc4 d2 Kd3 d1Q+ Bd2 Qc1 Be1 Bd7 c8B+ Qcc7 Ba7 Bc6 b8Q Ba8 Bc5 Rf5 Be7 Nac5+ Kc2 Rg5 Qb6 Nb7+ Kd3 Rf5 Be6 Rh5 Bf7 Rh4 Qc6 Rh5 Kc4 d3+ Kc3 Rh4 Bh5 d2 Ra2 Nd4 Kd3 d1R+ Qd2 N2e3 Bg2 Rc1 Qb6 Rc2 Qc1 Bg3 Qc6 B1f2 Rg1 h1R Qd2 Rh2 Bh1 Ng2 e3 Rc5 Ne2 Rb5 Qg6 Kd5 Qa5 Bd6 Rd2 Kc5 Qa2 Kb4 Qae6 Ka3 Qg5 Rbe5 Rd1 Kb2 Rc1 Qcd7 Rc8 Q8c7 Rh8 Qdd8 Kd2 Nf4 Rg3 Rg2 Rh6 h2 Rh7 Rg1 Rh8 Ng2 Kd3 Rf1 Bd2 Rc1 Be1 Rcc5 Bg6 Rh6 Qh5 Rg5 Nf4 Nh4 Rg1 Rc2 Be8 Rf5 Qg5 Bg3 Bf7 Ree5 Bg6 Ra5 Ke4 Rad5 Ba5 Rf7 Bg2 h1R Ne2 Bf2 Rh7 Rf8 Bf7 Bh2 Be8 Ng6 Bab4 Nf4 Bf7 Rg6 Rh3 Rh6 Be8 Rh4 Bh5 Rff5 Bd2 Rdc5 Ba5 R5c4 Bab4 Ra5 Bd2 Nb5+ Kf5 Re4 Bdb4 Nd3 Kg6 Nd4 Rc1 Rg1 Bh1 Rae5 Rf1 Ne1 Bd2 Bfg3 Rf2 Rf1 Rg2 Bf2 Rgg3 Ng2 Ba5 Rb1 Be1 Rd1
Nn1r1nk1/2qn2BR/NQ1r1bP1/b2qQ3/3N2K1/P2n2n1/2q2B1N/q2b4 w - - 0 1 legal: proof: c4 d5 cxd5 h5 f4 e5 g4 exf4 b4 a5 a3 axb4 Bh3 f3 g5 g6 Bf5 gxf5 Ra2 Ra5 Rc2 Ra4 Rc4 Ra8 Rh4 f4 Rg4 hxg4 Kf2 f5 d4 Kf7 h4 b5 e4 c5 h5 c4 d6 b3 h6 b2 e5 c3 h7 g3+ Ke1 g2 Kf2 b4 d7 c2 d5 b3 d6 Qc7 d8Q Ne7 d7 Ng6 Qd2 Bb4 Nc3 b1Q Nge2 g1B+ Ke1 b2 Qd3 f2+ Kd2 f1Q Qa6 f3 Ng3 f4 Qa7 f2 Rh4 f3 Ke3 Qg2 Rc4 Nf8 Kf4 f1Q Nb5 f2 Be3 c1N Qa5 Ra6 Nd4 Qc2 Kg4 b1N e6+ Kg7 e7 Nc3 g6 Nd3 Qb6 Qd5 Qe8 Qa1 Nf1 Na4 Nh2 f1N Bf2 Ba5 Rb4 Bb7 d8N Ng3 N8c6 Nac5 Rb5 Rg8 Nb4 Ncd7 Rc5 Ne2 h8B+ Kh6 Be5 Bc6 Rc4 Ba4 Rc6 Rh8 Rf6 Kg7 Rf7+ Kg8 Rh7 Bb3 Bg7 Ba4 Qc8 Bb3 e8N Ba4 Qd8 Bb3 Qbf6 Rd6 Qe5 Ba4 Na6 Bb3 Be3 Bf2 Qdf6 Bh4 Qd8 Bf6 Bf2 Qc8 Qb6 Q2c7 Rh4 Bd1 Rh7 Qc2 Nec7 Qcb7 Na8 Qbc7 Bg3 Ne6 Kh3 Ndc1 Bh6 Nd3 Bg5 Kf8 Bf2 Rg8 Kg4 Rh8 Rh3 Kg7 Bf4 Rd8 Rh7+ Kg8 Bh6 Nef8 Bg7 Ng3+
b4r2/1qqnqRb1/4PR2/qr1N2R1/1b5Q/1K1RQ1BP/3nqnN1/1k4n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 c4 Kf6 Kc2 Ke5 b4 Ke4 c5 d5 c6 a5 h3 f5 b6 g5 e3 g4 c7 f4 b7 a4 b5 a3 b6 f3 Rh2 f2 Ne2 f1Q Ng1 d3+ Kb3 a2 Rh1 d2 Kb2 Kd3 e4 d4 e5 Nd7 b8Q Bg7 b7 Qe2 e6 Ra5 Qa7 Qe7 b8R Bb7 c8R Ngf6 Qb6 Ne4 Qe1 d1N+ Kb3 Ndf2 Nf3 g1Q Rc6 g2 Bd2 g3 Rd8 Rb5+ Ka4 Ba8 Bf4 Rf8 Na3 Qh2 Nb1 g1N Nh4 g2 Bg3 Nd2 Nc3 Kc2 Rc7 d3 Qe3 Qf3 Rc5 Qb7 Rg5 Kb2 Nd5 Kc2 Bb8 Qhc7 Rb1 a1B Rb4 Bac3 Rf4 Bb4 Rf7 Nb3 Rf6 d2 Rf7 d1Q Rf6 Qcc8 Bg3 Qcc7 Rh2 Qe2 Rh1 Nf3 Rf1 g1Q Ng2 Nbd2 Rf7 Qh2 Rf6 Ng1 Rf7 Nd1 R1f6 Kb1 Q1f2 Qcb6 Qff4 Nf2 Qh4 Ndf3 Kb3 Qa5 Bb8 Qhd6 Bc7 Qc5 Bg3 Qca7 Rc8 Qa7b6 Rc3 Q6c7 Rd3 Nd2+
2n1N2k/2P5/1QRr1r1q/K1n1P2q/R3n1b1/2R1BQ2/bbq4b/1N1Rb2n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 d5 h4 f5 b4 Kf7 c4 a5 e4 g5 h5 Kg7 b6 a4 b5 d3 Kc3 f4 c5 d4+ Kb4 f3 b7 f2 e5 f1B b6 a3 Bb2 d2 Bc1 g4 Bb2 d3 Qe1 d1Q Qe3 d2 Bc3 a2 Nf3 g1N Ng5 g2 Qd3 g3 Qe2 Qe8 Bd4 Rh6 Qb5 Ra6 Na3 Kh8 Rh2 Ne7 c6 Nh3 c7 g1B Nb1 g2 Qd3 Bg4 Qg3 Rf6 h6 Nf2 h7 Nd7 b8Q Ne4 b7 Qh5 Ba7 Qc2 Rh3 d1N Qf3 Bc4 Ne6 Bh2 Ng7 g1Q Be3 Ndf2 Ne8 Rad6 Ka5 Nh1 Qa7 Bce6 b8R Qgc1 Qb6 Ndc5 Rd8 Nc8 Rg3 Rc6 Rd3 Rd6 Rc3 Bh6 Rg1 Bg5 Rd1 Bh4 Na3 Q1d2 Rac1 a1B Nb1 Qb3 Rc2 Be1 Ra2 Bc4 Ra4 Qbc2 Bg5 Rh6 Qf1 Rd4 Nd6 Kg7 h8R Ba2 Qf3 Bb2 Bf4 Re6 Rh6 Qe3 Rg6+ Kh8 Ne8 Rc6 Bg5 Qf4 Rd6 Qf8 Be3 Qfh6 Rd5 Rg6 Rd6 Rf6 Rc6 Rdd6
2rn3B/2kN4/4rb2/b1nKbNQb/3brrr1/1B2N1PP/5qQ1/2b3NR w - - 0 1 legal: proof: f4 f5 d4 g5 e4 gxf4 b4 fxe4 g3 h5 a3 c5 a4 b5 axb5 cxd4 Ra3 h4 Rf3 h3 Rf2 Nc6 Rd2 Nb8 Rg2 hxg2 Kf2 d5 c4 Kd7 c5 e5 c6+ Kc7 h3 a5 Be3 a4 Rh2 d3 Qd2 d4 Qc1 d2 Qc2 d1R Qc1 a3 Rh1 a2 Qa3 a1B Qd3 f3 Qc2 d3 Qc4 d2 Bd4 Rh4 Ke3 f2 Bc3 Na6 Qe2 Bg7 Qc4 Qd4+ Ke2 e3 Kf3 e4+ Ke2 Bf6 Qd3 Nc5 Qc4 Ne7 Qg8 Rg4 Qg5 Bb7 Bb2 Rc8 Na3 Rc1 Nc4 d1R Bc3 Re8 Bb2 Bc8 Bc3 Bf5 Bb2 Bg6 Bc3 Bh5 b6+ Kc8 c7 Nc6 b5 Re6 Bb2 Nd8 b7+ Kd7 c8N Kc7 b8N Rc3 Nf3 g1B Nd7 Rb1 Bg2 f1R N8d6 Rcc1 Bc3 Rb4 Nf5 Be5 Nh2 Rff4 Nf3 Bf2 Ng1 Ra4 Nd2 Bb2 Nf1 Ba3 Bb2 Rcc4 Bc3 Bc1 Ba1 Ra8 Bb2 Rc8 b6+ Kc6 b7 Kc7 Ba1 Qb2+ Kd1 Qb6 Bb2 Rd4+ Kc2 e2 Kc3 e3 Bd5 Rfe4 Bb3 e1B+ Nd2 e2 b8Q+ Kc6 Qa8+ Kc7 Qd5 Ref4 Qg2 Rde4+ Nd4 Qa7 Kc4 Qa2 Nf1 Bc3 Ba1 e1B Ne3 Ba5 Kd5 Bec3 Ndf5 Bf6 Nc4 B2d4 Nce3 Qf2 Qf1 Bde5 Ne2 Bh8 Qg1 Bd6 Qg2 Bcg7 Ng1 Be7 Bf6 Bd6 Be7 Bd4 Bf8 Bhf6 Bg7 Bd6e5 Bh8 Ra8 Nd6 Rb8 Ndf5 Rc8
bKRr1QQ1/3bQqP1/Rq3n1N/r2P2B1/1Nrn3n/1b1r2k1/8/5qqQ w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 gxf4 b4 a5 g5 axb4 Bg2 e5 Bf1 Bh6 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Qd3 Rh6 Qd4 Rh1 Qd8 Kf2 Ke7 d4 Ke6 e4 f5 a4 c5 g7 b5 e5 h5 a5 b3 g6 c3 a6 b2 a7 c4 Ra6+ Nc6 Qc2 b4 Rh4 b3 Rb6 Bd7 Rh2 h4 Ne2 h3 Rb8 Nf6 Rg2 h2 Rb4 h1B Rg3 Qb6 Qd1 c2 Qd2 c3 Qe3 Rhd8 Nd2 b1B Rg4 b2 Ne4 Ba2 Rg1 b1R N2g3 Bb3 Nc5+ Kd5 Bd2 c1R e6 c2 g8Q Ne5 g7 Ng6 Nd3 Nh4 Re1 Ra1 Qf8 Ra5 e7 Rd1 e8Q c1N Qe2 Rac8 Q2e7 Rc4 Re6 Ne2 Rc6 Bg2 a8Q Bh1 Bc1 Rd2 Ra4 Rd1 Nc5 Rd3 Na6 Bg2 Ne4 Bh1 Ng5 Bg2 Nf7 Bh1 Ne5 Ke4 Nb4 Bg2 Qh5 Bh1 Qhf7 Bg2 Q7g8 Bh1 Kf1 f2 Nf7+ Kf3 Rc8+ Kg3 Nh6 Bb7 d5 Nd4 Qa7 Bbc6 Qe4 Bb7 Qh1 Ba8 Bd2 Nc2 Ke2 f3+ Kd1 f4 Qc7 Bdc6 Qce7 Bd7 Kc1 f1Q+ Kb2 Nd4 Ka3 f2 Bc1 f3 Bg5 Rb5 Ra7 Qg1 Ra6 Ba2+ Ka4 f1Q Qh8 f2 Qh7 Qb1 Qhg8 f1Q Qgf7 Qe6 Q7g8 Rb7+ Ka5 Ra7 Bc1 Qb2 Bg5 Qf7 Kb6 Bb3 Qh8 Rac7 Qhg8 R7c5 Ka7 Ra5 Kb8 Qbf2 Bc1 Qe3 Bd2 Qee6 Bg5 Qb6+
1R3qB1/2qk1P1Q/2r3n1/n1Pq1RK1/Qrb5/3NR1b1/1n1R1b2/brB1r3 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Nc3 fxe4 Nd5 b6 Nb4 axb4 a5 Na6 axb6 Nb8 Ke2 e5 f4 d5 c4 h5 g4 b3 b7 h3 b6 h4 c5 b2 f5 b1R f6 d3+ Ke3 h2 f7+ Kd7 g5 h3 g6 d2 g7 d4+ Ke2 e3 Kf3 e2 Kg4 e1B Ra4 d3 Ne2 e4 Ra1 e3 Ra6 Rh6 Kf4 Rc6 Ng3 e2 Bg2 Qc7+ Kf5 Ne7+ Kg5 Bf2 g8R e1B Rh8 Bg7 Nh5 Ba1 Qa4 d1Q Ba3 d2 Rf1 h1R Re8 h2 Bc1 Ng6 Re3 Qe2 Be4 d1N Bd3 Nb2 Nf4 Qd2 Be4 Qdd6 Nd3 Qf8 Ra7 Bg3 Rf5 Bef2 Ra6 Re1 Ra5 Na6 b8Q h1Q b7 Nb4 Ra6 Ra7 Qa8 Qg2 b8R Rb7 Qc2 Rbb6 Ra2 Ba6 Qa4 Bc4 Qb7 Nd1 Rd2 Nb2 Qba6 Nd5 Qc2 Nde7 Qaa4 Rb4 Rf6 Nf4 Bh7 Qd5+ Rf5 Nfg6 Bg8 Nc8 Qd1 Nd6 Qh5 Nb7 Qh7 Na5
3n2qq/PR2n1b1/PR2b1kr/3B4/Q2QrbNB/r3b1n1/B1n5/q3BK2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 cxd4 f5 g3 f6 g2 Nc3 exf6 Nd5 f5 Ne3 f4 Nf5 Ra7 Ng3 fxg3 Rb1 Ra6 Ra1 Ra8 e4 d5 c4 g5 a4 b5 h4 f5 a6 Kf7 a7 f4 c5 d3 e5 f3 a5 f2+ Kd2 g4 e6+ Kg6 e7 d4 Be2 f1N+ Ke1 b4 Qa4 b3 Rh3 d2+ Kd1 b2 Ra2 b1R Nf3 g1Q Bc4 g2 Ke2 d1N Bg5 g3 Bd5 Nc6 Rb2 Nde3 Rb6 Rh6 Nh2 Rb4 Ng4 d3+ Ke1 Rf4 Qd4 d2+ Ke2 Be6 e8Q+ Kh7 h5 Nc2 Rh2 Nge7 Bh4 Bg7 Qd7 Qh8 a6 Rb8 Ba2 Nd8 c6 Rf3 c7 Ra3 c8B Rb7 Rb3 Rb4 Bb7 Rc4 Bd5 Rb4 Qf2 Rc4 Qa4 Re4+ Kd3 d1Q+ Qd2 Rf6 h6 Kg6 h7 Qa1 Qe3 Qf2 Qb6 g1B Qbd4 g2 Rh3 Qg8 h8B Ng3 Rh1 Bh2 Rb1 Qf5 Kd2 g1B Rb7 Qh5 R1b6 Bf8 Bg7 Qhh8 Bh6 Bg7 Be3 Kh5 Bf2 Rh6 Be1 Kg6 Bg5 Nh1 Bgh4 Be3+ Ke2 Bhf4 Kf1 Ng3+
1QbRb3/5BkN/B4b2/2bP4/nbrPbnq1/2Nnn1rQ/4Bq1K/B7 w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 f4 e5 Qb3 exf4 Ra2 g3 Ra3 g2 Qd1 Nf6 Rc3 Ng8 Rg3 fxg3 e4 f5 h4 Kf7 e5 b5 d3 c5 a5 g5 h5 c4 e6+ Kg7 e7 g4 e8B c3 a6 c2 a7 f4 Qe2 f3 Qe4 b3 Qb4 f2+ Ke2 b2 Bf4 c1N+ Ke3 Na6 Rh4 Qg5 Be2 f1N+ Ke4 Ne7 Nc3 b1B Bd6 Ne3 Qb3 b4 Bb5 Nc5+ Kd4 Rg8 Qa3 b3 Ne4 b2 Nc3 Ng6 Ba6 Na4 Ke4 Nf4 Nh3 g1B Be5+ Qf6 Qb3 g2 Ng5 g3 Kf3 Bb4 Nh7 Bf2 Rh2 g1B Bd4 Rb8 a8B g2 Bc6 Bh4 Be8 Rb6 Be5 Rc6 Bf7 Rc4 Rh1 Bg5 Kg3 Bc2 Qa3 b1B Rh3 Bf2+ Kh2 Bb3 Bc7 Qg6 Be5+ Bf6 Rh4 Qg4 h6+ Kh8 Ng5 B1c2 h7 Kg7 h8Q+ Kf8 Qh5 Kg7 Nh7 Bb1 Qb2 Bd1 Bf1 Bf3 Rh3 Be4 Rg3 Bc2 Qh3 Bd1 Bd4 Bdf3 Be2 Bg6 Be6 Be8 Bf7 Be4 Be5 Be1 Rf3 Bc5 Qb8 Bd2 Nb5 Be1 Ba1 Beb4 d4 Ncd3 Nc3 Qh5 Kg3 Qf5 Rf2 g1Q+ Rg2 Qf1 Kh2+ Qg4 Rf2 Nh5 Rf5 Nhf4 Re5 Qff3 Re6 Qf1 Rd6 Qf2+ Qg2 Qg5 Qc7 Kh6 Rd8 Qf5 Qb8 Rg3 Nf8 Qg4 Nh7 Qff3 Qf1 Kg7 Qh3 Qf2+
4Q1q1/2Q2q1r/P2bnqr1/Q3b1qn/1NRn3k/1q2N2P/K1QR2q1/1B5n w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h6 Qd3 b6 Be3 Bb7 Nb1 Be4 Bg5 f4 Qd1 Bf5 gxf5 hxg5 Kd2 Ke7 Kc1 Kf6 Kb2 d5 e4 d3 c4 f2 a4 d4 h3 b5 c5 f3 a5 d2 a6 b3 c6 b4 c7 d3 c8Q g4 e5+ Kg5 e6 g3 f6 g2 f7 Kh4 e7 g5 e8Q g4 Qcc2 g3 Rh2 Bd6 f8Q Qf6+ Qe5 Nc6 Ra3 Nd4 Qa5 Rh7 Qfc8 Ne6+ Nc3 Raa7 Qa4 Rag7 Qdc1 d1Q Qb7 d2 Qd5 Rg6 Bb5 f1Q Qa1 f2 Qdd3 Qh5 Qa5 d1N+ Kb1 b2 Qcd2 Qhg5 Ka2 b1N Qab2 b3+ Ka1 Qf7 Qf5 Nf6 Qfd5 Nh5 Qe3 Nd2 Qde5 Nf3 Na2 Nfd4 Ne2 g1Q Nf4 g2 Qc2 b2+ Kb1 Qc4 Ra4 f1Q Nd5 Q1f6 Nab4 Nf2+ Qe1 Qh1 Ne3 g1B Bd7 Qc8 Ka2 Qcg8 Qec3 Qhf3 Qcc7 Nh1 Rd2 Qfg2 Bc6 Bh2 Be4 Bf4 Qeb5 Bfe5 Qe8 Qff4 Nd3 Qff2 Rc4 Q2f6 Nb4 b1Q+ Ka3 Qd1 Ka2 Qgf3 Qb3 Qfg3 Bb1 Qg2 Qc3 Qc2+ Qb2 Qd3 Qc2 Qb3+
B1N4r/2q1rn2/1nr1q1qB/1B1NRb2/1q2P2Q/1P2n3/2k1rn2/Q1b2K1B w - - 0 1 legal: proof: d4 a5 h4 c5 f4 cxd4 b3 g5 f5 gxh4 f6 a4 Nd2 a3 Rb1 exf6 Rb2 axb2 a4 b5 axb5 f5 Nb1 f4 c4 Ke7 g4 Kd6 b6 Ke5 g5 Ke4 e3 h5 c5 d5 g6 f5 g7 h3 b7 h2 c6 h4 c7 d3 Kf2 h3 Bd2 f3 Bc3 d2 Bb5 d4 Qc2+ d3 Qd1 f4 Be8 Bf5 c8B Ra6 Bg6 Nd7 b8Q Qc7 Bh5 Nb6 Bf7 Ba3 Bfe6 Nh6 g8B Nf7 Qe2 d1N+ Ke1 d2+ Kf1 f2 Qf3+ Kd3 Qfa8 Kc2 Ne2 Ra7 Rg1 h1N Rg2 h2 Bg7 Ra6 Nbc3 b1Q Bcd7 Bc1 Ng3 Ra7 Ke2 f1R Nd5 Nhf2 Ne4 h1Q Nd6 Qh6 Rg5 Ra2 Qd8 Re1+ Kf3 Re2 Kg2 f3+ Kf1 Ra6 Bb5 Qf6 Bc8 Qe6 Bb7 Bh7 Rg3 Qh6 Rg2 Ng4 Rh2 f2 Rh5 Nc8 Nf4 Ng5 Be6 Nf7 Qg8 Rc6 Bf8 Kc3 Bd5 Qe6 Bh1 Nb6 Qg5 Qc2 Kg2 f1Q+ Kg3 Ndf2 Qh4 Be4 Nc8 Qe1 Re5 Qd3 Qa7 Kc2 Ba8 Bh7 Kg2 Qdf5 e4 d1R Nd5 Qb4 Nf6 Rd7 Qa1 Re7 Nd5 Ne3+ Kg1 Qh5 Bg7 Bf5 Bh6 Ned1 Kg2 Qhg6+ Kf1 Ne3+
1nN1q1NQ/b7/1P1n3P/1bQ2rK1/1q3nBn/1QqR4/3n2QR/q3kn1n w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 Na3 a5 Qd3 h6 Bg5 hxg5 Qd1 f4 Nb1 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Be7 Na3 Bc5 Nb1 Bf8 Kf2 Ke7 e4 Kf6 b4 Ke5 h4 d5 c4 g4 f6 g5 c5 g3+ Ke1 g4 Kd2 f2 h5 f3 f7 Kf4 e5 d3 e6 d4 h6 a3 e7 a4 e8Q g2 c6 Kg3 c7 a2 b5 a3 Qe7 Qe8 Qe4 Ne7 Qa8 Bd7 c8Q Nf5 Qda4 Bc5 f8Q Nd6 Qcb7 Ba7 b6 Bb5 Qfe7 Rf8 Qa5 Rf5 Be2 f1N+ Kd1 Kf2 Qf7 g3 Qfd5 d2 Kc2 d1N Qc3 Nd2 Qcc5 Ke1 Nh3+ g1N Ng5 f2 Rh2 f1N Nh7 g2 Nc3 Ngf3 Nf6 g1N Ng8 Nh3 Ne4 Nf4 Qb3 Nh4 Bg4 d3+ Kc1 Nf2 Qbc6 Nc8 Nd6 Nh1 Rb1 a1Q Qg2 Qd4 Rb2 a2 Rh3 Ne7 Nc8 Qb4 Rh2 a1Q+ Rb1 Qf6 Ra1 Nc4 Ra3 d2+ Kc2 Nfg6 Kd3 d1Q+ Ke4 Nf4 Ra2 Qda1 Rd2 Qh8 Rd3 Qhc3 Qad5 Rg5 Qdd4 Nef5+ Qde5 Qd7 Qed4 Ncd2+ Ke5 Nd6+ Kf6 Rd5 Qe5+ Ne3 Kg5 Qe8 Qf5 Nef1 Qd4 Rc5 Qh8 Rc7 Qfd5 Rf7 Qc5 Rf5+
Nn1q3q/Rb4P1/Rbq1rKb1/1q5k/Q2P1R2/2BRb3/r1b1bq1N/2Q5 w - - 0 1 illegal: No possible last move, all moves rejected
BB6/Rn6/3r4/Knq3kb/1Qb1Q1r1/1qqPpRQq/1NQn3P/1b2q3 w - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 axb4 Nc3 e6 Nd5 fxe4 Ne3 d5 Ng4 dxc4 g3 Bd6 f5 Bf4 gxf4 hxg4 a4 Ke7 a5 Kf6 a6 g5 d3 b5 Kd2 c5 a7 c3+ Kc2 e5 Kb3 g3 Bb2 g2 Qf3 c2 Bc1 e3 Ne2 g1N Ng3 c4+ Ka2 e4 Qe2 g4 Bg2 b3+ Ka3 c3 Kb4 b2 Qe1 b1B Qe2 Nh6 Ba3 c1Q Qf3 e2 Bh3 e1Q Qg2 c2+ Qd2 e3 Bg2 Nf3 Nf1 g3 Rg1 Nf7 Bh1 g2 Ra2 Qd7 Ka5 b4 Rb2 b3 Qb4 Rg8 Ra2 b2 Nd2 Rg4 Nc4 Nd6 Rf1 Nd2 Rf3 g1Q Qa4 Nb5 Bd6 Qcd1 Ra1 c1Q Qc2 Ba2 Bc7 b1B Nb2 Na6 Bb8 Bc4 Ra2 Nac7 Bg2 Kg7 f6+ Kg6 f7 Ne6 f8Q Nd8 f5+ Kg5 f6 Qd5 f7 Qc5 Ra4 Qgf1 Qd6 Bd7 f8Q Be8 Bh1 Bh5 Qg3 Qh3 Bg2 Qe5 Qb4 Qc5 Bc7 Rb8 a8Q Rb6 Bb8 Rf6 Qe4 Rd6 Qcc3 Qb3 Qc2 Qf1 Bh1 Qfe1 Qef4+ Kg6 Rf1 Rd4 Ka6 Ba2 Ba8 Qd5 Rf3 Qc5 Qd1 Qcc3 Qe4+ Kg5 Qc2 Bb1 Ra2 Qf8 Kb6 Rd7 Ra7 Qc5+ Ka6 Rd6+ Ka5 Nb7+
rkNn2br/3n2q1/b1Br1rP1/4K3/2N1R3/2prq1P1/Q4RnQ/2qNN3 w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 g5 g3 gxf4 b5 e5 b6 axb6 Ba3 b5 Be7 b4 Bc5 Be7 g4 Bh4+ Bf2 Bg3 hxg3 e4 Qb3 e3 Kd1 exf2 Kc1 Qd7 Qd1 Qd8 Kb2 Kd7 e4 f5 a4 c5 d4 Kc7 e5 b5 a5 h5 a6 h4 a7 f3 d5 f4 g5 c3+ Kc2 c4 e6 b3+ Kc1 c2 Kd2 b4 e7 b2 e8Q h3 g6 b3 Kc3 c1Q+ Kd4 h2 Ke5 c3 Bc4 f1N Qc2 f2 Qa4 f3 Qa2 Qe7+ Kd4 Nf6 Ba6 Be6 Nh3 Ne3 Na3 b1R Re1 f1B Nc4 h1Q Nf2 b2 Nd1 f2 Bb7 Nfd7 Bc6 Ng2 Re4 Bg8 d6+ Kc8 Qe2 Qhh6 Qh5 Bd3 Qh4 f1R Qh2 Rf7 Kd5 Rf6+ Kd4 Nc5 d7+ Kc7 d8N Ncd7 Nf7 Qg7 Nfe5 Be2 Nd6 Ba6 Nd3 Qe6 Ne1 Qee7 Bb5 Qe6 Nc4 Nc6+ Kd3 Nd8 Kd4 Qe8 Bc6 Kc8 Qa5 Qe6 Ra2 Ra1 Qd5 b1R Rf2 Rb6 Qa5 Ra2 Qa3 Re2 Qb2 Re3 Qa2 Rab8 a8N Qe8 Nc7 Ra8 Nd5 Kb8 Ne7 Ref3 Nc8 Qee7 Re6 Rd3+ Ke4 Qc5 Re5 Rfd6 Kf5 Q5e3 Re4 Nc5 Ba4 Rf6+ Ke5 Rbd6 Bc6 Nd7+
B1r1QN2/1K3P2/2qr1qp1/1n1N3b/R1q1R2b/3P1Qn1/4rnn1/2N1Nnk1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 d5 e4 dxc4 b5 f5 Ba3 fxe4 Bb4 axb4 a5 b6 axb6 Rh6 Ra2 Rh3 Ra1 Rh8 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 Kd5 f4 e5 h4 b3 d3 g6 b7 c3 h5 b2 h6 c4 b6 g3 h7 c2 f5 c1N f6 c3 f7 c2 Nf3 g2 Ne1 g1Q+ Kd2 Kd4 Bh3 Nh6 Ra3 Be7 Qf3 Na6 b8N Nc7 b7 Nb5 Bg2 Ra6 Qf4 Rd6 Ra8 Ne2 Ra2 Bg4 Qg3 Bh5 Nc3 Ng4 Rh4 Bg5+ Qf4 Qf6 Na6 Rc8 h8Q Ng3 b8N b1N+ Kc1 Bh6 Kb2 c1Q+ Kb3 Bg5 Ka4 Nd2 Ka5 Ndf1 Nc5 Qf2 Qf5 e3 Qe8 e4 Nbd7 e2 Ra4+ Ke3 Nf3 e1R Na2 Qc4 Nc1 Qg1 Nb6 Kf2 Ka6 e3 Nd7 e2 Rh2 Bh4 Nf8 Rd1 Qd5 e1N Qdc6 Rd2 Qb7 Bg5 Rh4 Re2 Bh1 Ne5 Rd4 Ng4 Bg2 Bh4 Qd5 Nc2 Ne1 Nce3 Bf3 Ng2 Qde4 Nd2 Qe3+ Kf1 Ba8 Qgf2 Rf4 Kg1 Qf3 Qfc5 Re4 Nf2 Kb7 Ndf1 Nd5 Qc6+
3R2QR/1N2BP2/BQKp3R/1n1P1k2/5n1q/Rr4qn/2rb2q1/2b2nbn w - - 0 1 legal: proof: c4 f5 f4 a6 e4 fxe4 b4 Nf6 g4 Ng8 b5 axb5 f5 bxc4 f6 c3 Ke2 h5 Ke1 b6 Na3 Bb7 Nc4 Bd5 Ne3 Be6 Nf3 Nh6 Ng1 Bf5 gxf5 Ng8 Ng4 hxg4 Ke2 Kf7 Ke3 g5 Kd4 c5+ Kd5 e5 d4 d6 h4 c4 a4 g3 a5 b5 a6 b4 a7 c2 h5 e3 h6 g2 h7 e2 Rh2 e1N Qg4 c3 Qe4 b3 Bf4 c1B Be2 g4 Qd3 e4 Qf3 c2 Rh3 b2 Ba6 b1N Qe2 e3 Bd3 g3 Ra2 Ne7+ Ke4 Bh6 d5 Nd2+ Kd4 Nf1 Qg4 e2 Be4 Ng6 Kc4 Na6 Kb5 Nd3 Kc6 e1Q Ne2 g1N Nc3 g2 Bg5 Nc7 Na4 Nb5 Nc5 Qg3 Nb7 Ngf4 Ra3 Nf2 Bd3 Rb8 a8Q Nh1 Qa7 Rf8 Rh2 Ngh3 h8R g1B Qb6 Bd2 Bh4 c1Q+ Bc4 Qc2 Qg8+ Ke8 Bg5 Qe4 Bh4 Qeg2 Be2 Bg5 f7+ Ke7 Bc4 Kf6 Bd3 Re8 f8R+ Ke5 f6 Re7 Be2 Kf5 f7 Bh6 Bc4 Re2 Re8 Qdg5 Rd8 Qh5 Bg5 Qhh4 Be7 Bc1 Rf8 Rc2 Rd8 Qe4 Re2 Qeg2 Re6 Nd3 Rg6 Bhd2 Re6 Ndf4 Reh6 Ra8 Rf3 Raa2 Ra3 Rcb2 Be2 Rb3 Bc4 Rab2 Be2 Rc2+ Bc4 Nc3 Ba6 Nb5+
2N3nB/rrQ4b/p1b1Nq2/2Pn1nrb/R5R1/3KQP2/7N/Nkq3nq w - - 0 1 legal: proof: g4 f5 a4 b5 d4 bxa4 g5 c5 g6 cxd4 e3 e6 Bc4 Bd6 Bb3 Bf4 exf4 hxg6 Bd5 g5 Bf3 g4 Be4 fxe4 Ke2 Kf7 h4 Kf6 c4 Kf5 b4 d5 c5 g5 h5 a6 b5 g3 b6 g4 h6 e3 h7 Ke4 f5 e5 f6 a3 b7 d3+ Ke1 d2+ Ke2 a2 f7 d4 f8Q g2 Qb3 d1B+ Ke1 d3 Qe8 e2 Kd2 e1N Ba3 g3 Qee6 Bf3 Qe8 Nc2 Qea4+ Nb4 Qf7 Qf6 Qa5 Ra7 Qh5 N8c6 b8N Bf5 Qg6 Nd5 Bc1 Nd4 Nd7 Bh5 Nf3 g1R Rh3 g2 Qe8 Bfg6 Nh2 Nf5 f3+ Kd4 Qa3 e4 Qa5 Kc4 Qe6 Kb3 Na3 Be8 Nf8 Bc6 Bb2 Rb1 Bc3 g1N Qe5 Rb2+ Nc2 e3+ Ke1 e2 Kd2 Rb1 Rg3 Rb2 Qe8 Rb1 Ne6 Rb2 Rb1 a1Q Qc7 Ka2 Rg4 Rbb7 Rbb4 Qb2 Rbc4 Kb1 Ra4 Qa3 Na1 Qb2+ Ke1 d2+ Kf2 d1B Ke1 Qb6 Kd2 e1Q+ Kd3 Qb2 Be5 Qc1 Bd4 Nge7 Be5 Rg8 h8N Rg7 Nf7 Rg5 Nd6 Ng8 Nc8 Qh4 Nf1 Qh1 Nh2 Qd8 Bh8 Bc2+ Kc4 Nfe3+ Kd4 Bh7 Qee7 Nf5+ Kd3 Rg6 Qg5 Qf6 Qe3 Rg5
r1Qbq3/P1rb1B2/K2RrBP1/nq4R1/Q5bR/3p1n2/1q5R/nkN3r1 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 c5 b4 cxd4 Nd2 axb4 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Ra7 Ng4 hxg4 Bb5 Ra5 Bf1 Ra8 Ke2 Kf7 Kd3 d5 a4 b5 h4 e5 c4 b3 g6+ Kf6 a5 e4+ Kd2 Ke5 c5 f3 h5 e3+ Kd3 g3 h6 b2 f6 b1Q+ Qc2 b4 a6 e2 c6 e1N+ Kd2 b3 a7 f2 c7 g2 f7 b2 h7 d3 Kc3 Ke4 Qb3 d4+ Kc4 d2 Kb5 d1B Rh2 Nc6 Qg3 Nf6 Rh6 Nc2 Rh1 Na5 Be2 f1R Qg5 Nd7 Bg4 Kd3 Rh2 Qe8 Bh3 Rf6 Qg4 Be7 f8R Bd8 Bg5 Re6 Ne2 g1R Rf5 Rg8 h8R Rg7 Ra2 Na1 Bf6 Kc2 Rh4 d3 Nc1+ Be2 Rd5 Ne5+ Rd7 Nf3 Qa4+ N1b3 Bf5 Qa1 Be4 Kb1 Bd5 Rh7 Ra3 Qa2 Bc4 Na1 Rc3 Bd1 Rcc2 Qa3 Rcg2 Qc3 Rg5 Qc2 Kb4 Qg2 Rdd4 Bd7 c8Q Qf2 Rd6 Qb6+ Kc3 Qb5 Rhd4 Ree7 Ra6 Qc5 Rf4 Ne1 Ne2 Bf5 Ng3 Kc1 Rc6 b1Q Rfh4 Bdg4 Rd6 Qd5 Bb3 Qb2+ Kb4+ Kb1 Ne2 Nf3 Nc1 Qb7+ Kc5 Re2 Bc4 Rd7 Bf7 Q7b3 Qb5 Rc7+ Kb6 Bd7 Ka6 Re6 Qa4 Qb5+
2Br4/3r1r2/Qq1b1Pbr/2b2kn1/1QP5/pKBrBB2/n5bn/R1N2R2 w - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 b5 axb5 g5 Nc3 gxh4 Ra6 dxc3 Ra2 Qb6 Ra1 Qd8 f4 Kf7 b4 Ke6 g4 a5 b6 d5 g5 h5 g6 a4 g7 h3 b7 e3 b5 a3 b6 c2 Qd2 e2 Qe3+ Kf5 Kd2 e1B+ Kd3 e5 Be2 e4+ Kd4 h4 Bd3 h2 Ne2 h3 Nc3 Nh6 g8B Bg3 Nd1 Rh7 Kc3 d4+ Kb3 Nf7 Qe2 Nd7 b8Q Bc5 b7 Qb6+ Ka2 Ng5 Rf1 h1R Be3 h2 Rc1 Ne5 Qf2 Rf7 Qg2 Nef3 Be2 d3 Re1 d2 Nc3 d1R Rf1 Rd3 Ra1 Be6 Qa7 Rad8 b8B Bd7 Qa6 Be8 Qg1 Rfd7 Qf2 Bg6 Qe1 Rf7 Be5 R8d7 Bc1 e3 Bd1 e2 Be3 Rd8 Qd2 e1R Ne2 R3d7 Nc1 Rd3 Be2 Rd1 Qb4 R3d7 Bc3 R1d2 Kb3 R2d3 Na2 c1N+ Ka4 Kg4 f5 Bgd6 f6 Kf5 Bd1 Rg1 Be2 h1B Bh7 Bg2 Bd1 Ne2 Nc1 Rh1 Kb3 Rh6 Bg8 Nf4 Bh7 Nh2 Bf3 Ne2 Bg8 Rg7 Bgd5 Rgf7 Bb7 Rd4 Be1 Nc3 Bc8 Na2 Bc3 Rd3
Q3b3/4Q1NK/4P1rr/1PN2r1N/BN1Rrrnn/kb2q3/2R1p1b1/4r1q1 w - - 0 1 illegal: No possible last move
R4nbq/3NR3/Rpr1n2P/R5r1/1Qn5/B1N1nkb1/P1Q2nn1/1bq3K1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 h4 Kd7 e4 Kd6 d4 g5 h5 c5 h6 f5 Rh5 b3 Nc3 b6 Nb1 c4 Be3 g4 Qf3 b2 Qe2 f4 Qf3 c3 Ne2 g1N Kf1 c2 Bf2 c1Q+ Kg2 Nc6 Rh2 Nf6 Nd2 b1B Qd3 f3+ Kh1 Nh7 Qb3 Ra5 Qb2 Ne5 Rh4 Be6 Nb3 Nc4 Nc3 Bg8 Rh5 g2+ Kh2 Ne2 Qc2 g1N Nc5 Qe8 Nd7 g3+ Kh1 Nf4 e5+ Ke7 e6 Kd6 e7 g2+ Kh2 Ngh3 Rf5 Qa8 e8Q g1N Qee4 Ng2 Bh4 f2 Be7+ Kc7 Bc5 Nhf4 Ba3 f1N+ Kh1 Kb7 d6+ Rd5 Rh5 Kc6 Qe7 Rg5 d5+ Kb7 Qe1 Ngh3 Qh4 Nf2+ Kg1 Ne6 Qg4 Na5 Qb4 Nc4 Qe2 Bf7 Nb5 Ng7 Bb2 Rg3 Qc2 Qd2 Nf6 Qf4 d7 Bd6 Qa5 Rc8 Re5 Rg5 d8R Bc7 d6 Kc6 d7 Qe3 Qf5 Bd3 Re1 Bb1 Ba3 Qc1 Nc3 Be6 Rb5 Bg3 Qc2 Bf7 Ree8 Ne6 Qb4 Rc7 Ra5 Nfe3+ Qd1 Qb8 Re7 Rc8 Rf8 Qe5 d8R Bg8 Rfe8 Nhf8 Nd7 Rc7 Rb8 Qh8 Rb7 Rc8 Rba7 Rc7 R7a6 Rc8 Nb5 Rc7 Rea8 Rc8 Qde1 Kd5 Qd1+ Ke4 Nc3+ Kf4 Ne5 Rc6 Nd7 Qd2 Qdb3 Kf3 Qc2 Qc1+
7N/5bqR/PK1Q3n/r1r3Q1/bqR1RRq1/4N1P1/2q1kBpn/1n1q3q w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Bh3 e4 Bf4 fxg6 Qd3 g5 Bc1 g4 Qd1 g3 Kf1 g5 Ke1 g4 Be3 g2 Bf4 g3 Nf3 g1N Bf5 g2 Bc1 Bd6 Bg6+ Ke7 Bf5 Bg3 hxg3 Kf8 Be6 Ke7 Bc4 Ke8 Bd3 exd3 Kd2 Kf7 a4 Kg6 e4 h5 c4 b5 c5 d5 c6 b3 e5 Kf5 e6 Ke4 c7 b2 e7 b4 e8R+ Be6 c8R h4 a5 h3 Qb3 h2 Qa2 b3 Rc2 Nc6 Qa3 Rh5 Qb4 Ne2 Qf8 Qg5+ Ke1 d2+ Kd1 Kd3 Qf6 Nh6 Ra4 Bf7 Re4 Ne5 Nc3 b1Q Nh4 b2 f4 Nf3 f5 Qg7 Qg5 Qa2 f6 b1Q Rf4 Qb4 Ng6 Rc8 a6 Rc5 Nh8 Ke3 Re1 h1Q Rb2 Qac4 Kc2 Nh2 Rb3 d3+ Kb2 Qb6 Ka3 d4 Rb5 Qa2+ Kb4 Qc2 Bb2 d1B Nd5+ Kd2 Ne3 Nc3 Ba1 Qb8 Ka5 Nb1 Rc4 Qbf8 Kb6 Qe7 Rg1 Ke2 Rbb4 d2 Bb2 d3 Bd4 Ra5 Rgf1 Qe4 Rh4 Qg4 Rf4 Qb2 Bc5 Ba4 Rce4 Qc3 Rbc4 d1Q Rh3 d2 Bd4 Be6 f7 Qdc2 f8Q d1Q Qd6 Bd5 Qgg6 Re5 Qg5 Bf7 Rh5 Rec5 Rh4 Nf5 Rh7 Q3d2 Bc3 Qdd4 Be1 Nh6 Bf2 Q4d2 Re7 Qdc3 Ree4 Qb4+
4b1N1/n1r1p1n1/3Rb1Q1/N3K1NR/q1N1n1k1/r3P1P1/2n2r2/b2nb1QB w - - 0 1 legal: proof: b4 a5 d4 h5 f4 g5 a4 gxf4 b5 c5 Qd3 cxd4 Qg3 h4 Ba3 b6 Bb4 axb4 a5 h3 axb6 Rh4 Qf2 Rh6 g3 Rh8 Qg2 hxg2 Kf2 d5 Kf3 Kd7 h4 Ke6 c4 Kf5 c5 b3 h5 d3 c6 b2 c7 d2 h6 d1B h7 d4 b7 d3 b6 d2 Na3 b1N Rh3 Nc6 b8N Nc3 b7 Qe8 Rb1 Na7 Ra1 Qa4 Nb1 Nh6 Rh2 Bg7 Ra3 Ne4 Rh4 Ba1 Rd3 Be6 Na3 Rc8 Nh3 g1B h8N Bf2 Nc6 Be1 b8Q Bdb3 Rd6 d1N Ng5 f6 Kg2 f3+ Kh3 f2 Nc4 Bc2 Bg2 f1N Qb6 Nfe3 Nhf7 Bd3 Qa6 Nc2 e3 Be2 N6a5 Bh5 Bh1 Bg6 Nh8 Bh5 Kg2 Be8 Rh5 Kg4 Nhf7 f5 Qb6 f4 Qa6 Rcb8 c8Q Rb7 Qb8 Rc7 Qb1 Nf5 Qc6 Ng7 Qc1 Kf5 Kf3 Rb8 Qa6 Rb3 Qb6 Ra3 Nh6+ Kf6 Ng8+ Kf5 Ke2 Kg4 Qa6 Nec3+ Kd3 f3 Qb1 f2 Qc6 Na2+ Ke4 Nac3+ Ke5 f1R Qg2 Rf2 Qg1 Nb4 Qd3 Nc2 Qg6 Ne4+
nn1k1B2/BP1n3b/b1rnp2r/1Nnr3R/q3B2b/1BP2r2/2Q4R/2Q2K2 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 Nd2 gxf4 Ndf3 h6 g5 h5 Ne5 Ba6 Ng4 hxg4 Rb1 Bb7 Ra1 Bc8 h4 d5 b4 a5 g6 f3 b6 a4 b5 f2+ Ke2 a3 h5 a2 c3 e6 g7 e3 b7 g3 b6 g2 h6 d3+ Kf3 d4 h7 e2 Bd2 e1R Qe2 Nh6 g8B Nf7 Qd1 Be7 Ne2 g1N+ Kg2 Qd7 Qa4 Nf3 Rh4 N3e5 Qc4 Qa4 Qb5+ Ned7 Nf4 Kd8 Rb1 a1N Nh3 Rd1 Ng5 Ra6 Rh2 Nd6 Qb2 Nb3 Nf3 Bh4 Bh6 d2 Bc4 f1R Qc2 d3 Nd4 Nbc5 Nb5 Rf5 Rb2 Rdf1 Bb3 d1N Qc1 d2 Bf8 R1f3 Bf7 Rh5 Bg6 Rd5 Be4 Ne3+ Kg1 d1B Rbg2 Ra5 Rg5 Bc2 Rh5 Nec4 Kg2 Ra6 Kg1 Nc6 b8B Bb7 Ba7 Ncb8 Nd4 Bc6 b7 Bb5 Kg2 Rc6 Kg1 Ba6 Nb5 Ncb6 Kg2 Re3 Kf1 Bb1 Qc2 Na8 Qc1 Rg8 h8Q Rg6 Qh7 Rh6 Bg2 Bg6 Be4 Bf5 Qg6 Red3 Qg2 Bh7 Qgc2 Rf3+
1b1bk1nr/1p1bq1RB/q5r1/1rQ3b1/1KQb2NQ/n7/P4P1Q/1B2N1b1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 fxe4 h5 axb4 Na3 d5 cxd5 Bh6 Rb1 Bg7 Ra1 Bf8 g4 h6 Rh4 Bf5 Bb2 Nc6 Bf6 gxh4 g5 Bg4 g6 Nb8 Bg5 hxg5 Bb5+ Nc6 Nf3 Bf5 Qe2 Bd7 Kf1 Qb8 Re1 Ne5 Qd1 Qc8 Ke2 Qb8 Rh1 Qd8 Ke1 Nc6 Bf1 Nb8 Ng1 Bc8 d4 e5 Kd2 c5 d6 g4 g7 e3+ Kc2 e4 Kb3 c4+ Kc2 g3 d5 e2 h6 e1B h7 g2 Qf3 e3 Be2 h3 Rh2 c3 Kb3 c2 Qf6 c1B Qf5 Nc6 Bd1 e2 Qe6+ Qe7 Nc2 Bd7 Nf3 g1B Ne3 Bc3 Qe5 e1B Rg2 h2 Ng4 h1Q Bc2 Ra5 Bb1 Na7 Qh2 Bed2 Ne1 Bg5 Qf4 Ba3 Qc4 Bd4 Qc5 Bac1 Kc4 b3 Kb4 b2 Rg3 Nf6 g8B Nb5 Qc4 Na3 Qc5 Qh6 Rg2 Be6 d7+ Kd8 Rg3 Bcf4 Rg2 Bb8 Rg3 Qe8 Rg2 Bfd6 Rg3 Ke7 d8Q+ Kf8 Qd7 Qe7 Qc6 Bdc7 d6 Bd8 d7 Qg6 Qa4 Qd3 Qb3 Qa6 Qc4 Bf5 Bd5 Ng8 Bde4 Be6 Bed3 Bdc7 d8Q+ Kf7 Qd7 Bd8 Qdd6 Ke8 Rg2 Bf5 Qh2 Bd7 Ne5 Bf4 Rg7 Bg5 Ng4 Nh6 Bbc2 Rg8 h8Q Rf8 Qh7 Rh8 Kb3 Ng8 Q7h6 Bde3 Bh7 b1R+ Kc3 Rb6 Q6h4 Rg6 Kb4 Bd4 Bb1 Rb5+
1B1r1KQb/r3B3/2k4B/1n2b3/rRbqP3/1Rp1bB2/1P2Q2q/b2rN2n w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Ne4 g2 Ng3 hxg3 Qa4 Qf6 Qd1 Qd8 h4 Kd7 e4 c5 Ke2 g5 Kf3 f5 d4 a5 d5 a4 h5 g4+ Kf4 c3 Ke5 f4 h6 a3 b6 a2 h7 f3 b7 c4 d6 c2 Bf4 c1R Be3 f2 Bd3 f1R Qe1 c3 Qd1 Bg7+ Kd5 Nh6 Nf3 g1B Ne1 g2 Bd4 g3 Bb1 Na6 b8Q Nf5 Rh3 Ra7 Bc2 Be5 Rh6 Be3 Qe2 g1B Bd1 g2 Bc5 Rf8 h8B Ng3 Bg7 Nh1 Re6 Bgh2 Bh6 g1Q Bd4 Bf6 Be5 Bh8 Bg3 R1f6 Ke5 Kc6 d7+ Kc5 Rb6 Nc7 Rb5+ Kc6 Rb3 Nb5 Rb4 R6f7+ Ke6 Ra4 Qa8+ Bb7 Bb8 B2e5 Rb3 Qh4 d8B Qhh2 Be7 Rd8 Rb4 Rff8 Rb3 Rd7 Rb4 Rfd8 Kf7 Rb1 Qa7 Ba6 Qa8+ Kb6 Qd5 Ra7 Qb3 Kc6 Qe6+ Rd6 Kf8 Rc1 Qg8 Rd3 Bb3 Rcd1 Bf7 Rd5 Bh5 R5d2 Bf3 Rd6 Rc1 a1B Rb3 Rdd7 Rc2 Qgf2 Rd2 Rd6 Rd4 Rd8+ Kf7 Bc8 Rdb4 Bh3 Qc2 Bf1 Qd3 Qd2 Qc2 Qd4 Qe2 Rdd7 Kf8 Rd6 Qeg2 Bc4 Qe2 Rd8+
1rrr2R1/4r3/1b4bQ/1N2q2R/1P1bR2B/1qp2b1k/Q1rP4/RKn1Nn2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 b4 Ke7 e4 Kf6 h4 c5 h5 Kg5 e5 f5 e6 a5 b6 a4 b7 c3 e7 f4 e8Q f3 h6 Kg4 h7 g5 Ne2 g1B Ra2 c4 Ba3 c2 Bc1 g2 Nbc3 a3 Rh3 Bb6 Ne4 Ne7 Rh6 Nf5 N4c3 Qd5 Nb5 Na6 b8R Ng3 Rh2 Nc5 Ned4 g1R+ Kf2 Nf1 Ke1 Bg7 Qg8 Bf5 Ra1 a2 Nc6 Bg6 Rh6 Bd4 Nca7 Nb3 Re8 Rc8 Rb1 a1Q Bb2 c1R Re3 Rc2 Nc6 Nc1 Qg7 Rhd8 h8R Qe5 Qa7 Qa3 Ra1 Qb3 Rh5 Kg3 Re4 g4 Qe2 f2+ Kd1 Kg2 Qe3 g3 Rg8 Rh1 Rf5 Rh8 Qa2 Kh3 Qg5 g2 Qh6+ Kg3 Bc3 g1R Rh5 Rh7 Bb2 Re7 Bc3 Rh1 Bb2 Rh4 Bc3 Kh3 Bb2 Be3 Ncd4 Rb8 Nf3 Rdc8 Bd4 c3 Bc5 Bd4 Bd6 Qh8 Bg3 Qe5 Ne1 Rd8 Rf5 Rh5 Bh4 Rbc8 Qg5 Rh8 Qh6 Rb8 Rh5 Rdc8 Rg7 Rhd8 Rg8 Nh2 Qb1 f1B Qa2 Bg2 Qb2 Nf1 Qb1 Ra2+ Qc2 Qa3 Qb2 Bf3+ Kc2 Qb3+ Kb1 Qbe6 Qb3 Rc2 Qa2 Qb3+
2qB2BN/qQrk4/1n4rQ/1p2K3/1q1NbP2/nB2n2n/q2RB1P1/4n1b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 d4 e5 h4 g5 c4 gxh4 a4 f5 Ra2 d6 Re2 d5 cxd5 exd4 e5 Ke7 Re3 Ke8 Re4 fxe4 Ke2 h5 f4 b5 a5 c5 d6 e3 Kd3 b3 Ke4 b2 e6 h3 e7 d3 a6 h2 a7 d2 Qe1 d1Q Qd2 c4 Qd3 h4 Qc3 h3 Bd3 e2 Qf6 e1N Be3 c3 Ke5 c2 Qg7 c1Q Nf3 Rh6 Be2 Qc3+ Ke4 Qdc2+ Bd3 Qb4+ Kd5 Bf5 Ne5 Nd7 Nf7 Nb6+ Ke5 Be4 Nh8 Kd7 Be2 Nf6 Nd2 b1N Nb3 Qdc8 Nd4 Rg6 Qh6 Nfd5 Rf1 h1Q Rf2 Rb8 a8B h2 Bb7 Qg1 e8B+ Kd8 d7 h1N Bc6 Rb7 Bf7 Rc7 Bg8 Qa2 Bd2 Ne3 Bcd5 Na3 Bb3 Bc5 Bc3 Qa4 Ba5 Qb4 Bg4 Rb7 Rd2 Nf2 Bh5 Kc7 Be2 Nh3 d8Q+ Kb8 Qf6 Kc7 Qfg5 Kd7 Qf6 Rc7 Qff8 Qb7 Qa8 Qa7 Qb7 Qf2 Bed1 Qh4 Bf3 Qd8 Be2 Qc8 Nf3+ Ned5 Qa6 Rcc6 Bed1 Na4 Bd8 Nb6 Be2 Rc7 Qb7 Bg1 Nd4 Ne3
1R1rB2b/2nnQn2/2P1B3/2p5/NBr4P/K1nb2q1/b1Q3R1/qb1B1k1b w - - 0 1 legal: proof: c4 c5 g4 e5 d4 h5 f4 exf4 b4 Nc6 b5 Nb8 b6 axb6 gxh5 Rh6 Nd2 Rh7 Ne4 cxd4 c5 Rh6 c6 Rh8 Nc5 bxc5 Kd2 Ke7 Kc2 Ke6 Kb3 Kd5 h4 Ke4 a4 g5 a5 b5 e3 f5 a6 d5 a7 f3 h6 g4 h7 f4 Qe2 f2 Qd2 g3 Rh3 f3 Ra6 g2 Rh2 b4 Bb2 d3 Be5 d4 Rb6 Nh6 Qb2 d2 Bg3 d1N Ra6 d3 Qa3 d2 Ra4 Qf6 Rh1 Be6+ Bc4 f1B Rh2 f2 Ra6 Nc3 Qc1 d1B+ Qc2+ Bd3 Rb6 f1N Be1 Bg7 Ne2 Kf3 e4 g1Q e5 Nf7 Rg2 Rd8 h8Q Ne3 Qf8 Ned5 Qe7 Nd7 Rb8 Bh8 Bb5 Qg6 Ba4 Nc7+ Kb2 b3 Ka3 Bec4 e6 b2 Bd2 b1B Bb3 Ne4 Bb4 Qg3 Nc3 Bd5 Na4 Nc3 Qf8 Ke3 e7 B1f3 e8B Be6 Qe7 Bd5 Rf2 Bh1 Rg2 Qc1+ Qb2 Qf1 Bd1 Qf6 Qa2 Qfe5 Qc2 Bea2 Rc8 Rb8 a8B Rb5 Bb7 Rb6 Ba5 Rb4 Rb8 Rc4 Bb4 Ne2 Rg1 Kf2 Rg2+ Kf1 Ba6 Qa1 Bc8 Nf8 Bh3 Nc3 Be6 Nd7
1nRKB1k1/nQr2bb1/nrb5/B1b5/1pN1qP2/Pq2Q2Q/q5n1/Q6N w - - 0 1 legal: proof: c4 f5 b4 a5 h4 axb4 e4 fxe4 a3 d5 cxd5 g5 Be2 gxh4 Bf1 b3 Ra2 bxa2 Ke2 Kf7 Ke3 a1Q Kf4 c5 Kg5 e5+ Kh5 b5 f4 c4 g4 e3 d4 e4 d6 b4 g5 h3 d7 e2 d5 e1N d6 h2 Bh3 e3 Qf3 c3 Qe4 e2 Be3 c2 Nf3 c1B Nc3 Ra6 Bb6 Ng2 Qe3 e1N Ne4 Bb2 Nf2 Ne7 g6+ Kg8 Kg5 h5 g7 h4 Ne5 Qa2 Kf6 Nd3 Ba5 Rh7 Rc1 Rb6 Nh1 Nc5 Rc3 Nca6 Nc4 Qc7 d8Q Nec6 Qde7 Na7 Bd7 h3 Be8 Be6 d7 Bf7+ Q7e6 Bd6 d8Q Bc5 Qd7 Qd6 Qb7 Qd1 Qd6 Ba1 Ke7 Qdb3 Kd8 Bb2 Qh6 Ba1 Nf2 h1B Rc2 h2 Qhh3 Ne1 Rc3 Bc6 Rc2 h1Q Rc3 Qe4 Nh1 Rh5 Rc2 Ng2 Rc3 Kh7 g8Q+ Kh6 Qgg4 Kh7 Qhh4 Bd4 Qc7 Bd5 Qd1 Kh8 Nb2 Kg8 Qhh3 Rhh6 Qb7 Rhc6 Rc5 Bg7 Nc4 Bad4 Rb5 Rc5 Qa1 Rcc6 Ne5 Rc3 Rc5 Rc1 Rc8 Rc7 Nc4 Bc6 Qee1 Bf2 Qg1 Bfd4 Qge3 Bc5
1rq4B/1N4N1/1b2bk1p/2q2Pn1/P5Kb/1N1r1Rn1/Q5qn/1B1qNQ1b w - - 0 1 illegal: No possible last move
q3rqr1/8/p2kqBRR/1Rbn4/K2RnPN1/2n1P1b1/1bN2nQQ/6q1 w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 f5 cxd4 f6 exf6 e3 f5 Ne2 f4 Kd2 f3 Ng1 f2 Na3 f5 Qe1 h5 Bb5 f1N+ Ke2 f4 Qd1 Bb7 Nb1 Bd5 Bc4 Be4 Be6 f3+ Ke1 f2+ Ke2 Bd5 Bg4 Bf3+ gxf3 hxg4 Kd3 Ke7 Kc4 d5+ Kb4 g5 c4 d3 h4 a3 h5 a2 c5 d2 c6 a6 b3 g3 c7 d4 c8R d3 h6 g2 h7 g4 Nh3 g1Q Qe1 d1Q Bb2 g3 Bc1 g2 Rc3 d2 Rd3 Nh6 Bb2 Ng4 Bc3 Ng3 Ka4 f1Q Qf2 Rg8 h8Q Ne4 Na3 Nc6 Nc2 Nb4 Rd4 Nd5 b4 Kd6 b5 Qb6 Qe2 Re8 Nf2 Qc6 Qh5 Qa8 b6 Be7 Rc1 a1B b7 Bb2 b8R Bf8 Rb1 Qc1 Rb5 d1N Rh3 Qd2 Rg3 Qd3 Qh2 Qc4+ Ka5 Qcc8 Ka4 Qe6 Rh3+ Kd7 Rh6 Bc5 Rdb4 Kc6 Bf6 Kd7 Rd4 Kc6 Nd3 Ngf2 Ne5+ Kd6 Qd2 Qd3 f4 Ndc3+ Ka5 Qc4 Ng4 Qe7 Ra1 Qf8 Ra2 Qb1 Qe2 g1B Qg2 Bh2 Ra1 Qh1 Rg1 Bg3 Qh2 Bca3 Qf1 Qcc8 Qfh3 Qe6 Q3g2 Nb1 Ka4 Bc5 Rgd1 Qg1 R1d3 Bca3 Rc3 Bb4 Rc7 B4a3 Rg7 Bc5 Rgg6 Nbc3+
3rqNn1/3NNP1b/1Qnr2rb/1np1NP1q/1rbBK3/6k1/R7/Q2R2b1 w - - 0 1 legal: proof: c4 f5 b4 a5 h4 axb4 e4 g5 exf5 gxh4 a3 d5 Nc3 dxc4 Nb1 c3 Bb5+ Qd7 Bc4 Qd8 Ba2 b3 Qc2 bxa2 Qb3 Bd7 Qd1 Bc8 Ke2 Kf7 Kf3 Kf6 g4 Kg5 a4 b5 f6 e5 a5 h5 a6 c5 f7 e4+ Ke3 h3 d4 Kh4 f4 b4 d5 b3 a7 h2 d6 b2 g5 c2 g6 Bh6 d7 Kg3 g7 h4 Qd3 h3 Qd1 Ba6 Qe2 Qe8 d8N Bc4 Nd2 b1R Nc6 Rb4 Bb2 c1B Ne7 Nc6 Be5 Rd8 a8Q Rd6 Qa4 Bb2 Rd1 a1N Bd4 Nb3 Ngf3 Ba1 Rhf1 h1Q Rf2 h2 Ng6 Bc3 Qa1 Bb2 Bc3 Nbd4 Nfe5 Nb5 Nd7 Bc1 Bf6 Bb2 Nf3 Bd4+ Kd2 e3+ Kc2 Re6 Nfe5 Rd6 Ngf8 Qf3 Qd3 h1B Qb3 e2 Rh2 e1R f5 Bg1 Qbb1 Qh5 Re2 Bf3 Qbb2 Bcd5 Kd3 Bg4 Qbb1 Bc4+ Ke4 Rf1 Red2 Rf2 Ra2 Rfd2 Bg5 Rg6 Be3 Rdd6 Bd4 Nge7 g8N Qg5 Nh7 Qc8 Ndf6 Nc7 Bb2 Rg7 Ra5 Rb3 Ba3 Bh5 Nf8 Bg6 N8h7 Qh5 Nfd7 Qd8 Bb2 Qb8 Nhf8 Bh7 Bd4 Rgg6 Ne6 Rb6 Qb5 Qc8 Qa6 Rb4 Ra2 Nb5 Qb6 Qa8 Ngf6 Re8 Nef8 Ng8 Nd5 Qd8 Qb1 Qe7 Qc1 Ra8 Qa1 Qe8 Ne7 Rd8
1K3R1b/rqP4r/B4Bk1/Qn3N1N/1n2Q3/PN2b1Nb/p1q5/r2qq2r w - - 0 1 legal: proof: d4 f5 e4 g5 exf5 a5 b4 axb4 h4 gxh4 d5 b3 d6 cxd6 a3 d5 Ra2 bxa2 Qe2 d4 Qd2 Ra7 Qd1 Ra8 Kd2 Kf7 Kd3 h5 Kc4 d5+ Kb5 e5 g4 h3 c4 h2 f4 h4 f6 h3 c5 e4 c6 e3 f5 e2 g5 e1B c7 d3 Kb6 d2 Bb5 d4 Nf3 d3 Qb3+ Qd5 Qc4 d1R Ba6 d2 Qe4 Bf2+ Nd4 Ne7 Bb2 Ra7 Nc3 Be3 Rf1 h1Q Ne2 h2 Ng3 Ra1 Rf4 d1Q g6+ Ke8 g7 Kf7 g8N Nbc6 Rf3 Qhe1 Rf4 h1R Nh6+ Ke8 Bc3 Bg7 f7+ Kf8 Rf3 Rh7 Rf4 Bh8 Rf2 Kg7 f8N Qd3 Ng6 Qdd1 Nf4 Qc4 Bb2 Qcc2 Rf3 Kf6 Nfh5+ Kg5 f6 Nf5 f7 Nd6 f8Q Bh3 Rf5+ Kg6 Qfe7 Nb5 Qb4 Nc3 Kc5 b5 Qa5 b4 Kb6 b3 Rf8+ Bf5 Qh4 Bh3 Nhf5 Rb1 Ba1 b2 Qf4 Rc1 Qe4 b1Q+ Bb2 Nb4 Ba1 Nd3+ Kc6 Qb8 Nb3 Nb5+ Bc3 Bc5 Bg7 Be3+ Kd7 Qb6 Kc8 Nb4 Bf6 Qbc6 Kb8 Ra1 Bc8 Qcd5 Ba6 Qb7+
1rNk3N/Pr2N2R/3N2q1/P4n2/1q3Qbn/K1pB1b1r/1B4r1/b1q2b1Q w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 h5 g4 hxg4 b3 e5 Nh3 exf4 Ng1 g3 b4 a5 Ra3 g2 Rg3 fxg3 bxa5 Qe7 Ba3 Qd7 Bc1 Qd8 h4 c5 d4 g5 Kd2 f5 Kc2 b5 Kb2 c3+ Ka2 b4 e4 b3+ Ka3 g4 e5 b2 h5 c2 e6 f4 e7 c4 d5 f3 a6 f2 a7 Nh6 d6 Qa5 Ne2 g1Q Nf4 g2 Nd3 g3 Ne5 Nc6 Qf3 Bg7 Qg4 Nf5 h6 Ncd4 h7 Nf3 Bd2 c1Q Nf7 N3h4 Qf4 Rb8 Bd3 f1B Nc3 Qab6 a5 b1B+ Ka4 Kd7 Nd5 Ba1 e8N c3 Ne7 Ba2 Be3 Bd5 Bc5 Qb7 Ba3 Bf3 Bb2 Qbb6 Ka3 Qb4+ Ka2 Rb7 Rh2 Rg8 h8N Qgb6 Rh1 g1R Rh3 g2 Rh1 Qc4+ Ka3 Qbc6 Rh2 Rh1 Rh3 g1R Rh2 Ke6 d7 R1g2 d8Q Rf8 Qb6 Kd7 Qg1 Qg6 Nfd6 Kd8 Rh3 Bd7 Ndc8 Rhh2 Ned6 Re8 Rg3 Rh3 Rg5 Qb5 Rh5 Rg8 Rh7 Qb4+ Ka2 Bdc6 Qh1 Bg4 Qhh2 Bcf3 Qh1 Rg7 Qg5 Rb8 Qf4 Qe4 Ka3 Rf7 Nd5 Rfb7 Nde7 Qb4+
3R4/1n6/br4R1/bQ1n3Q/N1rn3P/1b2q1bp/RR1N1P1k/2Kb1Bbn w - - 0 1 legal: proof: d4 b5 h4 f5 e4 fxe4 a4 g5 Qg4 c5 axb5 cxd4 Qh3 g4 Bg5 gxh3 g4 h6 Bf6 Kf7 g5 Ke8 g6 Bg7 Bg5 hxg5 Bg2 Bh6 Bf1 Bf8 Kd1 d5 b4 Kd7 c4 Ke6 c5 Ke5 g7 Kf4 c6 a5 b6 e5 b5 a4 c7 g4 b7 a3 b6 a2 Rh2 g3 Be2 e3 Bg4 g2 Rh1 e4 Nf3 g1B Be6 e2+ Kd2 e1N Nc3 e3+ Kd1 e2+ Kd2 d3 Na4 d4 Rc1 a1N Bf7 Nc6 b8Q Nce7 b7 Nec2 Bh5 e1B+ Kd1 d2 Qa7 Nf5 b8R Qe8 Nc3 Bd6 Rb5 Nge7 g8Q Rh6 Rb8 Nd5 Qa4 Qe3 Be8 Ba6 c8R Ng3 Qd7 Nb3 Rc5 Na5 Rb3 Nb7 Rb2 Rc8 Ra5 Rc4 Qgf7+ Rf6 Rh2 Nh1 Rg2 Bb8 Qh7 Rb6 Na4 Bd6 Qh5 Ke4 Rg6 Bg3 Nh2 Kf4 Nf1 Ke4 Qh8 Kf3 Qb5 Kg2 Qh7 Na1 Rc3 Nb3 Kc2 d1B+ Kb1 d3 Nd2 Rg4 Qh5 Nd4 Rc8 Bb3 Rd8 Kh2 Bd7 Re4 Bg4 Rf4 Be2 Re4 Bf1 Rg4 Nc3 Re4 Raa2 Rg4 Nde4 d2 Na4 d1B Nd2 Re4 Nc4 Ba5 Nd2 Re7 Kc1 Rc7+ Rc2 Rc4 Rb2 Bb4 Ra2 Bc3 Rcb2 Ba5+
bR1B3r/2nkPbq1/3b3n/Q4rn1/2NP2Q1/Q1N3r1/3pQKnr/b3B3 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 f4 e5 d4 exf4 h4 gxh4 Ra3 c4 b6 d5 e3 Ba6 Bd3 Bc8 c3 Ke7 Ra2 Ke8 Rc2 cxd3 c4 Bd6 c5 Bf8 Rc4 dxc4 g4 a5 g5 h5 b7 f5 c6 c3 g6 c2 g7 d2+ Kf1 h3 e4 a4 c7 a3 e5 f3 e6 h2 b5 f4 b6 h4 Qe1 a2 Qg3 a1B Na3 h3 Qg4 f2 Nb5 Qd7 Qd1 Nh6 g8Q Ra5 Qg5 Bd6 Na3 Qg7 e7 Be6 Qdg4 Kd7 Qe2 Bf7 Bb2 Na6 b8Q Rf5 b7 c1N Qa8 Nb3 b8B Nbc5 Qgh5 Ne6 Nc4 Rg5 Ba3 Rg3 Qa5 Ng5 Bc5 Kc8 Qef3 Kd7 Ke2 f1N Kf2 Ne3 Ne2 Ng2 Rb1 h1R Nc3 h2 Qe2 f3 Bb6 Rg1 Qa3 h1B Qd5 Rh3 Qda5 Rh2 Rb2 Kc6 c8Q+ Nc7 Qb7+ Kd7 Qbe4 Nb5 Bd8 Nc7 Rb7 Ne1+ Ke3 f2 Qh4 f1R Qhg4+ Rf5 Rb4 Ne8 Bbc7 Ba8 Rb8 Bg3 Be5 Nc7 Bf6 Bd6 Be5 Nef3 Bg3 Nh4 Be1 Rg3+ Qef3 Ng2+ Kf2 Bf4 Qe2 Bd6+
Q3K2N/1rP1b2n/B6n/p1r2nb1/bP3RQ1/kr2n3/2rQ1N1Q/1R1b1q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 h4 d5+ Ke5 g5 c4 a5 e4 f5 b3 d3 h5 d4 b6 d2 b7 g2 c5 d3 c6 g3 c7 f4 h6 f3 h7 f2 Rh4 g4 Qc1 d1N Be2 f1N Na3 d2 Rh3 Be7 Ra2 Nd7+ Ke6 Ra7 Kf7 Qf8+ Kg6 Nde3 b8Q+ Rb7 e5 d1B e6 Nh6 Qa8 Nf6 Rh1 Nef5 Nc4 N1e3 Nd6 Bd7 Nf7 Ba4 Nh3 g1B Nf2 g2 Ba6 g3 Rc2 Bh2 Qd2+ Ka3 b4 g1R Rc4 g2 Rf4 Bg3 Qc8 Bh4 Qcd7 Bg5 Q7d4 Bd6 e7 Re1 e8Q g1R Qd8 Re2 Qa8 Be7 Qe4 Rge1 Qf3 Rg1 Qg4 Rg3 Rf1 Qd8 Rh1 Qd3 Re1 Rhb8 h8Q Nh7 Qe5 Rb5 Nh8 R8b7 Rh1 Rc5 Qd6 Ng8 Kf7 Rh3 Qh6 Rf3 Qh2 Qb5 Qd7 Rec2 Ke8 Ngh6 Rf1 Be2 Rb1 Bd1 Nh1 Qf1 Nf2 Nd5 Bb5 Rb3 Ba6 Rbb5 Qdd8 Nde3 Qd2 Rb7+
1r2R1Kr/1qRNR2B/k1r3n1/r2r4/1PPpq3/r1Bnq2R/r5Q1/4Qb2 w - - 0 1 illegal: No possible last move
1K5k/b3N3/3nnNP1/Br3Pnb/b1pQ2Q1/3q4/1N1Rq1Bq/bb2N1b1 w - - 0 1 legal: proof: e4 g5 f4 d5 c4 dxc4 g4 f5 a4 a6 h4 Ra7 h5 Ra8 Ra3 fxe4 Rf3 b5 b4 a5 f5 axb4 Rf4 gxf4 g5 Ra7 Ne2 Ra6 Ng1 Rg6 hxg6 Ba6 Ne2 Bb7 Ng1 Bc8 Ke2 h5 d4 e5 g7 Kf7 d5 c5 d6 f3+ Ke3 h4 d7 b3 a5 h3 a6 b4 a7 f2 a8N c3 Bb2 h2 Qd3 c2 Ba1 c1B+ Nd2 b2 Qd6 b1Q Bb5 f1Q Bc3 c4 Nb6 b3 Qa3 b2 Qa6 Bc5+ Bd4 Qc7 d8Q Nf6 g8N Kg7 g6 Nbd7 Nd5 Ne8 Ba4 Bb6 Bc2 Nf8 Nc3 Nd6 Qa3 Ne6 Qh4 Bd7 Qg5 Ba4 Nf6 Rb8 Qa1 Kh8 Nd1 Qa2 Nh7 b1B Nf3 Bb2 Qg4 Qd8 Rg1 h1B Ne1 Bf3 Nb3 Qe7 Na5 Qd3+ Kf2 e3+ Kg3 e2 Nc6 Bc3 Nf6 e4 Rg2 e3 Nb2 Qe8 Ne7 Rb7 Qh3+ Bh5 Qg4 Rb8 Bc5 Be5+ Kf3 Bh2 Rf2 Bg1 Bb4 Rb7 Ba5 Qb8 Ng2 e1B Rd2 Bg3 Ne1 Be5 Bd1 Bc3 Kg3 Qe8 Bf3 e2 Kh4 Rb8 Bg2 Rb7 Nf3 e1N Kg3 Ng5 Kf4 Nc2 Ne1 Nd4 Ke5 Nde6+ Qd4 Qb3 Qa3 Qbc2 Qc5 Rb8 Qd5 Rb7 Qf3 Qb8 Qg4 Qd1 Kd5 Q1e2 Nd1 Ba1 Nb2 Nb5 Kc6 Qh2 Qd6 Bbe3 Qdd4 Nd6+ Kd5 Rb5+ Kc6 Rd5+ Kb6 Rb5+ Ka7 Bef2 Ka8 Be3 Qe5 Bc5 Qed4 Bb6 Kb8 Ba7+
3rB2n/1kp4K/b4P2/2R1N2r/q1qP2nQ/qrn2rNR/Q2r1r2/2Q1Q3 w - - 0 1 legal: proof: c4 a5 g4 d5 f4 dxc4 b4 axb4 e3 h6 g5 hxg5 Bb2 e6 Bf6 Bd6 Be5 f6 f5 fxe5 Qe2 e4 Qd1 Bf4 exf4 Ra4 Bh3 Ra5 Bf1 Ra8 Kf2 Kd7 Ke3 Kc6 h4 b5 a4 e5 d4 b3 h5 b2 f6 c3 h6 g4 f7 g5 f8Q c2 a5 c1Q+ Qd2 g3 a6 g2 a7 b4 h7 g4 f5 b3 f6 g3 Qf7 Qd5 Rh2 Nh6 Qe7 Ng4+ Ke2 e3 Kd3 e4+ Ke2 Qdc4+ Qd3 Nd7 Rh1 Kb7 Nc3 b1N Na2 b2 Qe5 Nf8 Nc3 Ng6 Nf3 g1R Qa5 g2 Nb5 Qa4 Ra3 Qcc4 Rh5 Rh1 Nc3 g1Q Bh3 Rd8 h8Q Qc1 Rc5 Rd1 Qh6 Nh8 Qh4 Rf1 Ne5 Rf3 Nd1 Rb8 Qae1 Rd5 Nf2 Nc3+ Kf1 b1R Kg2 e2 Qe3 Ra8 Nh1 Rb3 Ng3 Qa1 Q1c1 e1R Qe2 Ref1 Qee1 Nh6 Be6 e3 Kh3 e2 Bd7 Ng4 Bb5 Rb8 Be8 R1f2 a8Q+ Kb6 Qhg5 Ba6 Kh4 Rbd8 Kh5 Qa2 Qh4 Qb2 Qed1 e1R Qdd2 Rd1 Qe1 Rdd2 Kg5 Ne3 Kh6 Ng4+ Kh7 Qa1 Qc8 Ka7 Qf5 Kb7 Qfc2 Rb4 Rb3 Q1a3 Q2b1 Na2 Rd3 Nc3 Qa2 Rb3 Nh1 Rf4 Rh3 Rf5 Ng3 R5f3 Nf7 Rg5 Ne5 Rh5+
1b4R1/nPn2Q1R/1n1N1Qqp/Bbq5/1n6/5K2/bNP2Qnn/2k1q1rQ w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 e5 f4 exf4 g5 b5 Be3 bxa4 Bc1 g6 Bh3 f3 Bf5 gxf5 h5 f4 Rh4 Ra6 Rh1 Rg6 hxg6 Qc7 Rh5 Qb6 Rh1 Qd8 Kf2 Ke7 e4 Ke6 b4 Ke5 g7 d5 g6 f5 b5 a3 b6 a2 b7 h6 Qe1 a4 Nh3 a3 Qf1 d3 Qg2 Kd4 e5 d2 e6 d1N+ Ke1 f2+ Ke2 f1N e7 f3+ Ke1 f2+ Ke2 f4 e8Q Nd7 Ng5 Bd6 Qh3 Nfe3 Rh2 f1B+ Kf3 Nb6 Qg2 Nf2 Nc3 Qe7 Nge4 Bb8 Qc6 Bb5 Nd6 Nf6 g8Q Be6 g7 Ne8 Rh4 Nc7 Rh5 Nd3 Qge8 Nb4 Re5 Rg8 Nc8 Qc5 Qg4 Ng2 Rb1 a1Q Qf8 a2 Qcd6 Qb2 Na4 a1Q Qh3 Kc4 Qd7 d4 Re1 d3 Qff7 d2 Qhf5 d1N Be3 Qf6 Qde7 Nc3 Bd2 Qg6 Nb2+ Kd4 Re2 Ba2 Rg1 Qe1 Nd6 Nd3 Qeg5 Nb4 Kg4 f3 Re7 f2 Kf3 f1N Rd7 Rh8 g8Q Rh7 Qgf8 Rg7 Qh3 Rg8 Qh1 Rg7 Qff5 Rg8 Rh7 Rg7 Kg4 Rg8 Q5f7 Nh2+ Kh3 Rg7 Qgf6+ Qee5 Qf2+ Ne3 Qd7 Qge4 Rg2 Bbc4 Rg6 Nd3 Qg8 N3b5 Qd1 Na7 Rg3 Bb5 Ba5 Rg6 Qh1 Nb4 Rg1 Kc3 Qgd8 Rg8 Qdh4 Qg7 Qff6+ Kd2 Qdf7 Qee5 Rg4 Qec3 Kg3 Qgg5 Qg2+ Kc1 Qh1+ Qe1+ Qf2 Qgf5 Qhf6 Qd3 Kf4 Rg5 Rh4 Rg2 Rg4 Rg1 Rgg7 Qg6 Rg8 Nhf1 Kf3 Ng2 Qe5 Qg7 Qc3 Qg6 Qcf6 Nh2+
4kb1q/1b1Rb1nb/1r4nQ/1Q1P4/1Np1nR1R/R3qB2/4K2P/q1N1b2q w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Nd4 b5 Nf3 h6 Ng1 f3 Bb2 f4 Bf6 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 d4 c5 a4 g4 e4 g5 e5 f2+ Kd2 c3+ Kd3 b3 e6 c2 e7 c1Q a5 b2 a6 g3 f6 c4+ Ke2 g2 a7 g4 a8Q b4 d5 g3 Qc6+ Nd7 Ra6 b3 Rb6 Bb7 Kf3 Rh6 Be2 f1Q+ Kg4 f3 Qc7 f2 Kf3 Ne5+ Ke4 Ng6 Na3 b1Q+ Kf3 b2 Nc2 Qa1 Rd6 b1B Qb8 Qc8 Rd7 Qe3+ Kg4 Qe1 Qd2 f1N Nb4 Qd8 Qc1 Nd2 Bf3 Ne4 Ne2 g1B Qd2 g2 Nc1 Bf2 Rf1 Kf7 e8R+ N8e7 Rg1 Qd1 Rf1 g1B Re1 Qeb6 Re3 Be1 Ra3 Bc5 Qdf4 Bd6 Qg5 Qe3 Qh5 Bg7 Rh8 Bf8 Qg5 Ke8 Qh4 Bc8 Qb5 Nf5 Qg5 Ng7 Rh7 Rh3 Rh4 Bb7 Qf4 Bde7 Qh6 Qed4 Be2 Rb3 Bf3 Nf2+ Kg3 Qe3 Kg2 Ne4 Kf1 Qdd2 Qc5 Qdc3 Qb5 Qg1+ Ke2 Qh1 Qh7 Qb6 Qh6 Qbe3+ Kd1 Ne6 Nc2 Nh8 Ra7 Nd2 Ra3 Bg7 Qc5 Rb6 Nb4 Bh7 Qb5 Ne4 f7+ Kf8 Qh5 Ng6 Qg5 Bh6 Qf4 Qh8 Qg5 Kg7 Qh5 Kf6 f8R+ Kg7 Rf6 Kg8 Rf5 Bhf8 Qh6 Ng7 Rff4 Ne5 Rfg4 Kf7 Rf4+ Ke8 Qd6 Qc5 Qh6 Ng6 Ke2 Qe3+
1N5b/4N2r/1pR2r2/1q4r1/P2B1n1b/kP2KQ2/1q1qNrN1/qb1qR1Q1 w - - 0 1 legal: proof: f4 e5 d4 exf4 b3 c5 Ba3 cxd4 Bc1 a5 Qd3 a4 Qc3 a3 Qb2 Qe7 Bd2 Qf6 Bc1 Qd8 g4 axb2 Bh3 h5 Kd1 f5 Kd2 f3 Bf1 f4 Bh3 Nc6 Kd1 Nce7 Ke1 Nf5 gxf5 Ne7 Bg4 hxg4 Kf2 Ng8 Kf1 Qg5 Ke1 Qd8 Kf2 Ke7 c4 Kd6 h4 Kc5 e4 Kb4 a4 g5 e5 d5 h5 d3 e6 g3+ Ke1 b6 Kd2 d4 h6 g4 c5 g2 c6 g3 h7 f2 f6 f1R f7 f3 e7 f2 e8N Bf5 c7 Ne7 c8N Ng6 Na3 b1Q Nf3 g1B Na7 g2 Nc8 Nf4 Na7 Be7 Nc8 Bh4 f8Q+ Qd6 Ne1 Qb2+ Kd1 d2 Nb5 Ra5 Nec7 Qc5 Ne7 Bb1 Nc3 Qb5 Ne2 Bh2 Qa8 g1Q Qf3 Qg2 Ra2 Qa1 Rb2 Ka3 Na6 B2g3 Nb8 Bf6 Qe4 Bgh4 Rc2+ Kb4 Qe5 Nh3 Ng8 Qbc6 Qe4 Rg5 Rg1 Qb5 Ne7 Ba2 Ng3 Be5 Rb2 Ka3 Qd3 Qh2 Rc2+ Qb2 Ke2 d1R Bf4 Rd2+ Kf3 Bg7 Qe3 d3 Be5 Re2 Qf4 d2 Bd4 Re6 Qe4 Rf6+ Ke3 Nf4 Rh1 Rg1 Rc4 f1Q Qf3 Rg2 Rc7 Rg1 Rc6 Rg2 Nd3 Qfa1 Ne1 d1Q Rf1 Qdc2 Rg1 Qh1 Ne2 Rf2 Ng2 Qd2+ Ke4 Rhf8 Rgc1 R8f7 h8Q Bg3 Qh2 Bh8 Rf1 Bh4 Rb1 Qf1 Qg1 Rh7 Rbc1 Qde1 Ke3 Bb1 R1c2 Qec1+ Rd2 Qcc2 Rd1 Qe1 Rc1 Qeb4 Rf1 Qd1 Re1 Q4d2#
B1k3nn/2Npb1q1/2n4n/2K1Rr2/QQ1P1QRn/2N1r1q1/q2Q3P/r6r w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 f5 g4 f3 b5 a6 Qc2 axb5 Qa4 bxc4 Qd1 c3 Qa4 h6 Qb3 b6 Ba3 f4 Qd1 Bb7 Be7 Be4 Bg5 Bf5 gxf5 hxg5 Kf2 c5 a4 c4 e4 g4 d4 g5 a5 c2 a6 c1N e5 g3+ Ke1 b5 Kd2 b4 f6 b3 Kc3 g2 a7 g4 e6 b2 e7 g3 Kb4 c3 Kc4 f2 Kb4 c2 Qd2 f3 Qd3 Nc6+ Kb5 Qc7 Qb3 Rh3 Bc4 f1N Qd3 f2 Ra4 Ne3 Qf5 f1R Nd2 b1Q+ Nb3 Qa2 Qf4 Ng4 Nc5 Nd3 Ra5 c1R Ne6 N4h6 Ne2 g1N Nc3 g2 Bd5 Nde5 Kc5 Ngf3 Rg1 Nh4 Be4 Re3 Rb5 Rd8 a8Q Neg6 Qa4 Nh8 Bf3 Ra1 Ra5 Re2 Qd2 Qg3 Nc7+ Kf7 Qb4 Re3 Rb5 Ra8 Qa4 Ra5 Be4 Na7 Ba8 Nc6 Qb4 Kg6 f7 Kf6 Kb6 Rf5 e8Q Be7 Re5 Ra3 Qa4 Rb3+ Qb4 Rbb1 Qc8 Rbe1 Qa6 Red1 Qaa4 Rdf1 Rh1 g1Q Kb5 Q1g2 Rg1 Qg7 Kb6 Q2g3 Rg2 Rh1 f8Q+ Qaf7 Qb8 Qa2 Kb5 Qh3 Rg4 Qg3 N7d5+ Kf7 Q8d6 Ke8 Nc7+ Kd8 Kb6 Kc8 Kc5 Bd8 Qf8 Rhd1 Qf6 Rh1 Qg5 Bf6 Qf4 Be7+
BB4q1/1q2brrP/p1KR2nr/8/1kN2BB1/r4P1n/3r2Qr/q1q1R2Q w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 a5 hxg4 Nd2 f5 a6 bxa6 Ne4 a5 f3 a4 f4 Bb7 Nc5 Bg2 Ne4 Bf3 exf3 fxe4 Kf2 e5 h4 Ke7 b4 Kd6 c4 g5 h5 g3+ Ke2 d3+ Ke3 d2 b5 Kc5 h6 d5 b6 a3 b7 d4+ Ke2 e3 Kd3 g4 Ke4 a2 f5 g2 f6 g3 f7 d3 Rh4 e2 Rb1 e1R+ Qe2 a1Q Nh3 g1Q Rb2 d1R Rh5 g2 Rh4 d2 Rb6 Nc6 b8B Be7 f8Q Nf6+ Kf5 e4 Ke6 e3 Qg7 Nh7 Nf2 Ne5 Re4 Ng6 Rd6 Kb4 Kd5 Ng5 Qh7 Nh3 Kc6 Qg8 Ng4 a6 Qf2 e2 Ne3 Ra7 Re5 Rd7 c5 Rb7 Qg3 Qf2 Ree6 g1R Qg2 Rh1 Nc4 Rh2 Qh1 Qfd4 Qg7 Ra7 Bg2 Rg1 Bf1 e1R Bd3 Rg5 Be4 Re3 Bd5 Ra3 Re1 Rf5 Be4 Rf7 Bd5 Nh4 Qgg2 Ng6 Be4 Rhh7 Bd5 Rhg7 h7 Rb7 Bb2 Qe3 Be5 Rb5 Bf4 Rb6+ Kd7 Qg1 c6 Qc5 c7 Rc6 c8B Qa7+ Bc7 Rc5 Be6 Rh5 Bd5 Rh6 Ba8 Rb1 Re3 d1Q Re1 Rb2 Kc6 Rd2 Bg4 Qdc1 Bb8 Qb7+
2N1N3/1p3r2/Q1nnb1qP/2rBn3/2R2n1n/1rn1r2q/1BPk1N2/Q3N1K1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 e4 Kf7 h4 Ke6 h5 d5 e5 Kf5 h6 Ke4 a5 g5 e6 g3 f5 g4 f6 b3 a6 b2 e7 g2 e8Q+ Ne7 a7 d3 f7 d4 f8N g3 Ne2 g1N Ne6 g2 Qa4 Nd5 Qc4 Nc6 Nc7 Qg8 Na3 b1R Bb2 Rh7 Bc3 Rb3 Qb4 Re7 Ne8 Qg6 Kc1 Ke3 Bb2 d2+ Kb1 d3 Qe1 d1N Qa5 d2 Nb5 Re4 Nbd4 Be6 Rh4 N1c3+ Ka1 Nb5 Kb1 d1N Kc1 Rd8 a8N N1c3 Nb6 Rd7 Qa7 Rf7 Qa6 Nd6 Nc8 Re5 Qd1 Rff5 Nf4 Rh5 Bb5 f1R Bd3 f2 Nh3 Nf3 Bc4 g1N Rg4 Nh4 Nf3 Rhf5 Ne1 Ngf3 Rd4 Rf7 Rf4 Rh1 Rg4 f1Q Nf2 Rh3 Rd4 Nf6 Rf4 Reb5 Bd5 Nh5 Rc4 Nfe5 Be4 Kf4 Kd2 Rc5 Qb1 Rf3 Qba1 Qh3 Bd5+ Nce4+ Kd1 Ke3 Ned3 Nc3+ Ke1 Ng2+ Kf1 Kd2 Ne1 Re3 Kg1 Nhf4 Be4 Nh4+ Bg2 Bg4 Bd5 Be6+
r7/2rNBnk1/r1QKB1rp/1QPn1br1/n2N1b1N/2r3r1/1R3PN1/3n4 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 g5 a4 a5 h4 axb4 e4 f5 h5 fxe4 h6 Ra6 Rh4 gxh4 g5 Qc7 g6 Qg3 Nc3 Qe5 Nb1 Qg7 hxg7 Nf6 Ra3 Ng8 Rh3 Ra5 Rh1 Ra8 Kd2 b5 c4 d5 c5 e5 a5 h6 a6 h3 a7 d3 Ke3 h2 Nh3 d4+ Kd2 b3 Rg1 h1R Qh5 b2 Rg2 b4 Qe2 e3+ Kd1 d2 Kc2 d1N Kd3 e4+ Kc4 b3 Kd5 d3 Qc2 d2 Ng1 e2 Nc3 e1R Rh2 b1R Qb2 e3 Rh5 e2 Qa3 b2 Ke5 Nc6+ Kd5 Bf5 Qb3 Nge7+ Kd6 Rh3 g8N Ne5 g7 Ra1 Qb5+ Kf7 Nf6 b1R g8N Rb3 Ncd5 Rhc3 Ne3 Nd5+ Ne7 Nb2 Nf3 d1N Ng2 Rg8 Rh1 Rg5 Nd7 Kg7 Nfh4 Na4 Rh3 Raa3 Rd3 Ra2 Rd2 Rcg3 Rb2 Rbc3 Nf4 Raa3 Bh3 Reg1 Nfg2 e1R Be3 Bh7 Be6 Bf5 Bf4 Rg6 Bg5 Re4 Qa5 Rb4 Qa6 Rb7 Qc4 Rc7 Qb5 Re8 a8Q Ra1 Qac6 Ra8 Bc1 R3g5 Ne3 R1g3 Neg2 Nab6 Bf4 R1a6 Bc1 Na4 Bd2 Rb3 Ba5 Rbc3 Bb6 Rb7 Bd8 Rc7 Qcb6 Nc6 Qb7 Nb8+ Ke5 Rh3 Q7b6 Rhg3 Nc6 Be7 Nd4 Bf6+ Kd6 Nc6 Nc2 Bd4 Qb7 Ne5+ Q7c6 Be3 Nd4 Bf4 Be7 Nf7+
R4R1r/1bK5/N1r2rP1/R1b1Rn2/3Q2r1/QprP1k1n/1n2n2B/1r3Br1 w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 gxf4 b4 e5 g5 a5 Nc3 axb4 g6 Qg5 Nd5 f3 Nf4 exf4 hxg5 Ra7 Rh3 Ra5 Rh1 Ra8 Kf2 Ke7 a4 Kd6 e4 Ke5 d3 b5 a5 h5 g7 f5 a6 c5 g6 h4 a7 b3 Qe2 c3 Ra4 b4 Qa2 b2 Rh2 b1R Qb2 c4 Qc2 h3 Qb3 c2 Qb2+ c3 Ra5+ Bc5+ Be3 c1R Ra3 b3 Be2 Ne7 g8R Na6 Rh1 h2 Bd1 Bb7 Be2 Rc8 a8R Rc6 Qa2 c2 Nh3 Rg1 Rab8 c1N Rbf8 Rg4 Bf1 Ne2 Ra5 Rc1 Ng5 Rc3 Ke1 f2+ Kd2 f3 Qa3 f4 Ne6 Nf5 Nc7 Rh5 Rg1 h1N Ra8 Rh8 Rgf8 Nb4 Rg2 Nd5 Na6 Nb6 Rh2 Na4 Rh5 Nb2 Bd4+ Kd6 e5+ Ke6 Be3 Kd5 e6 Ke5 Bg2 f1R e7 Rb1 Bg1 f2 e8Q+ Kd4 Bh2 f1R Qd7+ Ke5 Rg5 Rg1 Bf1 Nf2 Qd8 Nh3 Qd4+ Ke6 Rh5 f3 Rg5 Nh6 Ke3 f2 Rf4 Nf5+ Ke4 Nh4 Rd5 Nf5 Re5+ Kf6 Kd5 Kg5 Bg2 f1R Rf3 Rf2 Bf1 Rcc8+ Ke6 Rc6+ Kd7 Re4 Ree8 Kg4 Re3 Ref4 R3e5 Kf3 Rf8 Rfg2 Kd8 Rgg4 Kd7 Ne3 Kd8 Rff6 Kd7 Nf5 Kd8 Rce6 Kc7 Rc6+
6qN/nbB4q/1p1R2B1/1NB1kq1Q/Q1P5/rK1n2q1/1Pr3B1/q1q1qq2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 Kd2 e5 a4 exf4 a5 Qxa5+ Kd3 f5 g3 f3 Ra2 f4 Nh3 f2 Ng5 f3 Ra1 Bd6 Nh3 Bf4 Ng1 Qa2 gxf4 h5 Bd2 Kf7 Bb4 Qa5 c3 Qd8 Nd2 Qb6 Ba3 Qe6 Nb3 Ke8 Kd2 Qa6 Bd6 Qa2 Bf8 Rh7 Ba3 Rh8 Bc5 Qa6 Ra5 Rh6 Ba3 Rh8 Rg5 Qe6 Rg4 hxg4 Be7 Qa6 Bb4 Qa1 Ba3 Qa2 Kc2 Kf7 e4 Ke6 h4 g5 h5 a5 e5 d5 c4 g3 h6 d3+ Kc3 d2 h7 b6 Bd3 f1Q Be7 a4 Kc2 a3 Rh6+ Nf6 Qe2 d1Q+ Kc3 d4+ Kb4 g4 Nh3 f2 Qf3 g2 Qe2 g1Q Bb1 g3 Be4 d3 Qe1 d2 Bf8 g2 Bd6 Qab1 Bc7 Qdc1 Qd1 a2 Bf3 a1Q Ng5+ Kf5 e6 Ne4 e7 Bb7 e8B Nc5 Rd6 Ra2 Nf7 Qe1 Bd5 f1Q Bdc6 Rg8 h8Q Qh2 Qh4 g1Q Bg2 Qhg3 Nh8 Qef2 Qc2+ Nd3+ Kc3 d1Q Qh5+ Rg5 Bf7 Qff3 Nd4+ Ke4 f5 Nc6 f6 Ke5 Be8 Qde1+ Kb3 Na7 f7 Qf5 f8B Qh7 Bg6 Rf5 Qh6 Rf2 Nb5 Rd2 Qd1 Rc2 Qhh5+ Qf5 Bh6 Qgf1 Be3 Qg8 Bc5 Qh1 Qg5 Qhh7 Qgh5 Qf1 Qd2 Qce1 Qb4 Qbc1 Qa4 Ra3+
K1R1qr2/1Q1r3k/b5p1/r4qP1/3r1nqN/2B1PNn1/QnR5/qQ2n1Q1 w - - 0 1 legal: proof: f4 a5 d4 e5 b4 axb4 d5 exf4 d6 b3 a3 cxd6 Nc3 d5 Nb1 d4 g4 h5 g5 b5 Bd2 b2 Bh3 b4 Bc1 b3 Bg4 Bb4+ axb4 hxg4 Kd2 Kf8 Kd3 f5 Kc4 d5+ Kb5 f3 c4 d3 h4 f4 c5 g3 e3 d2 c6 f2 c7 f1Q+ Kb6 d4 b5 g6 h5 Kg7 h6+ Kh7 Qg4 d1N Ne2 d3 Ra3 g2 Qh5 g1Q Ra7 d2 Qh3 f3 Qh2 f2 Ng3 Nf6 Nf5 Rf8 Nh4 Nh5 Ra2 Qg4 Qg1 Ba6 Rh3 Qe8 c8Q Ra7 Qb7+ Nd7+ Kc7 Ra8 b6 Nf4 Rh2 Nc5 Ra3 Kh8 h7 Ncd3 Ra5 Kg7 Rc5 Ne1 Rc6 Rd8 Rc2 Rd4 h8Q+ Kf7 Qf6+ Kg8 Qe6+ Kh7 Qc4 Qd3 Qa4 f1N Qa2 Ng3 Rh1 Nc3 Rh3 d1R Nd2 b1R Ndf3 b2 Bd2 Na4 Bc3 Ra1 Rhh2 b1Q Rc1 Rf5 Rhc2 Qd7+ Kb8 Nb2 Ka8 Rf8+ Qb8 Qe4+ b7 Qdf5 Qc8 Qe8 b8Q Rd7 Qcb7 Rd4 Bb4 Nfh5 Rc8 Nf4 R1c2 Qd1 Bc3 Qc1 Qad5 Ra5 Qa2 Nbd3 Qbb1 Qd1 Q1b7 Qa1 Qbb1 Nb2 Qb4 R4d6 Qb7 Rd4
1NB5/1n6/1qPRq2P/b1p2BK1/Qrk1n1br/1r1n3R/q1b2Bp1/Q1B5 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 hxg4 c4 e5 axb5 exf4 Nc3 d6 Na4 cxb4 c5 Ne7 c6 Ng8 Nc5 dxc5 Kf2 Ke7 h4 Ke6 d4 Kd5 b6 g5 h5 a5 b7 f5 e3 f3 Kg3 a4 Ne2 f2 e4+ Kc4 e5 b3 d5 b2 d6 b1B d7 f4+ Kg2 f3+ Kg3 a3 e6 a2 e7 Bg7 e8B Bc3 Bh3 f1R Bg6 f2 Bb2 Na6 b8Q Ba5 Nc3 Nh6 Bc2 Nb4 Ba3 Nf7 Bb2 Nd3 Qe2 Qb6 d8B Nd6 Be7 Nb7 Qc7 Rb8 Qce5 Re1 Qf1 Re4 Qd1 f1Q Bd8 Qf7 Bc1 Qe6 Nd5 Rf4 Nf6 Rd4 Ba4 Bc2 Nd7 Rh7 Rb1 a1Q h6 Qa2 Rb2 Rf7 Rh2 Rff4 Rb3 Rde4 Qa1 Rd4 Rd2 Rfe4 Kg2 g3 Kf3 g2 Bc7 Rh4 Bg3 Rde4 Bf2 g1N+ Kg3 g4 Bb5+ Kd5 Ba6 Rb4 Ra3 Nf3 Rb3 Ra8 Nb8 Ng5 Ra3 Bb1 Qa4 Bc2 Kg2 g3 Bf5 Ne4 Kf3 g2 Rd1 Nd8 Bb7 Bd7 Bc8 Kc4 Ke3 Ra7 Rd2 Rc7 Rb3 Nb7 Kf3 Nf4 Rd6 Nd3 Ke3 Be8 Ra3 Bh5 Rb3 Bg4 Ra3 Ne1 Kf4 Rd7 Rh3 Rd8 Rd1 Rd3 Rd2 Rb3 Rd6 Nf6 Kg5 Nd3 Qb2 Qb1 Qe5 Qa2 Qa1 Ne4+
N3qr2/P2b1Pn1/4n1rN/1p2q1bQ/BpR3K1/1n4NN/3Q1qrk/2B4b w - - 0 1 legal: proof: b4 a5 h4 axb4 c4 c5 a4 g5 e4 gxh4 e5 d5 cxd5 c4 e6 fxe6 Ra3 e5 Rg3 e4 Rb3 cxb3 Ke2 Kd7 f4 Kd6 g4 b5 d4 h5 a5 e5 g5 e3 Kf3 e4+ Ke2 b2 g6 h3 a6 h2 g7 h4 f5 h3 f6 Qe8 a7 Bd7 f7 Nc6 Qe1 Nge7 g8N Rh6 Bd2 Nd8 Bc1 Ne6 Nc3 b1N Qd2 Rg6 Nh6 Nf5 Bg2 Bg7 Bf3 Bf6 Bh5 Bg5 Bg4 Ke7 d6+ Kf6 d5 Ke5 Bh5 Kf4 Qd1 Bc8 d7 Kg3 d8N Nfg7 d6 Nd2 d7 Nb3 Qd5 Rb8 Bf3 Bf6 Qh5 Bg5 Nd5 Ra8 Nc6 Rb8 d8Q Bd7 Nc7 Rc8 Ke1 e2 Ne7 Ra8 Bg4 Rb8 Na8 Rc8 Nf3 Rc2 Rf1 h1R Ng1 Kh2 Kf2 e3+ Kf3 e1Q Nef5 Rg2 Ng3 e2 Bf5 Qf2+ Kg4 e1Q Bc2 Qee3 Re1 Qe5 Re4 Na1 Ba4 Nb3 Ne2 Rd1 Nf4 Rd6 Rd4 Rb6 Rc4 Rb8 Qb6 Qe7 Qc5 Rf8 Qd4 Qe8 Qd6 Kg1 Qd3 h2 Qd2 h1B Nh3+ Kh2
n5Qb/NNnb2Br/r2n2q1/B3K1Pn/1Np3Q1/r2N2nR/3p2P1/k5b1 w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 a5 b4 axb4 a3 c5 d5 g5 hxg5 Ra6 Bb5 Ra7 Bf1 Ra8 c4 Na6 a4 Nb8 Ra2 Kf7 Rd2 Bh6 Rd4 cxd4 c5 Ke8 c6 Ra7 c7 Ra8 Bb5 Bf8 Bc6 dxc6 Ke2 Kd7 f4 Kd6 a5 Kc5 f5 Kc4 f6 e5 f7 b5 d6 h5 d7 c5 a6 h4 a7 e3 Kf3 d3 Ke4 d2 Qf1+ Kb3 Nc3 h3 Qd3 h2 Nce2+ Ka2 Kf5 c4 Qd6 b3 Qe7 b4 Ng3 e2 Nf1 e1R Ke6 b2 Ne2 b1N Ng1 e4 Ne2 e3 Kf5 b3 Qe4 b2 Nc3+ Ka1 Qc2 e2 Ke6 Rh7 Qe4 Qf6+ Kd5 Na3 d8B b1N Qh4 Nd7 Qh5 Bg7 f8N Qg6 Ne6 Bh8 Nd1 Nb5 Nfe3 Nd6 Nb2 Na3 Nc5 Nab5 Nbd3 Ngf6+ Ke6 Rf1 Nd5 e1B Qg4 Nb6+ Ke5 Bd7 c8N Nc7 Nb7 Bf2 N5b4 Bg1 Ba3 Rf3 Bb2+ Kb1 Bc3 Nh5+ Bf6 Rg3 Bg7 Rh3 Nd5 Rf3 Ba5 Ka1 N5b4 Rg3 Nc1 Ra3 Ncd3 Ba4 Ne7 Bd7 Nec6 Rf8 a8Q Rf6 Qg8 Nba8 Qg3 Ndb5 Na7 Ra6 Qg4 Nd6 Nc1 Bc5 Re1 h1N Re3 Bb6 Rh3 Bg1 Ncd3 N1g3
1BR4N/3b1P2/1rp3Nk/r1b1QB1r/2p2r2/1K1nqnnB/B1r4P/2b3Q1 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 f4 Kf7 a4 Kg6 d4 b5 Kd2 e5 Kc3 e3 f5+ Kh6 d5 g5 d6 g3 a6 g4 d7 e4 a7 g2 f6 g3 f7 Qg5 d8Q e2 a5 e1R a6 e3 Ra3 e2 Qe8 Ne7 Nh3 g1R Kc2 c3 Kb3 g2 Bf4 c2 Nd2 c1B Nf3 Nf5 Ne5 Nd7 Ra4 Bc5 Ng6 Ng3 Rc4 Ne5 Qe6 Rb8 a8B Nf3 a7 Rb6 Qe5 Bd7 Bd5 Rh7 a8B c6 Bb7 Rh8 Bc8 Rh7 Qdd4 Rd1 Be6 e1N Nh8 Rd2 Bd3 Rc2 Bdf5 Rf1 Rg1 Nd3 Qf2 Nh1 Bg3 Qd2 Nf4 Qe3 Qe1 Rff2 Nfg6 Rf1 Qd1 Rff2 Re1 g1R Re2 Rgg2 Qg1 Ra2 Bh3 Ra5 Ra2 Rf1 Bef5 Rc2 Ra1 Be8 Bce6 Bd7 Raa4 Kg5 Bd5 Rh5 Ra2 Kh6 Ra3 Ra8 Ra7 Rff2 Rc7 Ra5 Rc8 Rf1 Qb2 Rff2 Bb8 Ng3 Bde6 Nh4 Qc3 Rf4 Qe5 Nf3 Ra4 Rd2 Kc3 Re2 Ba2 Rd2 Rc4 Rc2+ Kb3 bxc4+
N1QnbR2/4ppbN/KN1n3r/q4b1P/Nb3P2/6B1/3r1b2/nBQr2k1 w - - 0 1 legal: proof: b4 c5 e4 d5 a4 b5 axb5 cxb4 g4 dxe4 g5 a5 g6 b3 Ra3 hxg6 Ra1 g5 Ra4 g4 Rb4 axb4 Ke2 Kd7 h4 Kd6 d4 Kd5 f4 g5 h5 b2 b6 e3 Kd3 e2 c3 e1B b7 b3 Bd2 g3 Qc2 g2 Qc1 g4 Nh3 g1R Ng5 g3 Nh7 Nc6 b8Q Bd7 Qc8 g2 Rh2 Bf2 Be1 Nf6 Be2 Bg7 c4+ Ke6 c5 Kf5 Kc4 Ke4 Kb5 Ne8 d5 Ra2 Bd3+ Kf3 Nc3 b1B d6 b2 Bg6 Bbf5 Na4 b1N Ka6 Nd2 Rh3+ Ke2 Rb3 Kf1 Rb8 Nb3 Ra8 Rd2 Rb8 Bh3 Bb1 Na1 Ra8 Bdf5 d7 Nd6 Rb8 Qc7 d8N Bhg4 Ne6 Nd8 c6 Bc5 Nc3 Bb4 Na4 Rh1 Ra8 g1B Bg3+ Bd1 Rb8 Bf2 Ra8 Kg1 Rb8 Qd7 Nc7 Qe6 Na8 Qe1 c7 Bf3 Qe6 Bc6 c8N Bd7 Ncb6 Be8 Nf8 Rh7 Qec8 Rh6 Nh7 Rh3 Bh4 Rhd3 Bg3 Rd1 Qa3 Qc3 Qc1 Rd2 Nc5 Qe5 Qc6 Bed7 Qc7 Nc6 Rf8 Nd8 Nca4 Be8 Qc8 Qa5#
KB6/p2n1Pr1/1nk1NBpn/2B2QRr/1B1Rb1b1/2r2Pb1/Q1q2n2/1n6 w - - 0 1 legal: proof: a4 b5 c4 bxa4 f3 d5 Qc2 dxc4 Qd1 g5 e4 f5 exf5 g4 Be2 g3 Bd3 Na6 Bf1 Nb8 Ke2 Qd5 Nc3 Bd7 Ne4 Qa5 Nf2 gxf2 g4 Qa6 g5 Nh6 g6 Qb5 g7 Ng8 Bh3 Qd5 Bg4 Bc8 Bh5+ Qf7 Bg6 hxg6 Nh3 Qd5 Ng1 Qd8 Ke3 Kd7 Ke4 f1B Kd5 c5 d4 e5 b4 c3 h4 c2 h5 e4 f6 a3 f7 e3 h6 e2 b5 e1N h7 a2 b6 c4 b7 c3 Rh3 Qc7 Qd2 Bd6 Rh4 Bd3 Ba3 c1N Nh3 c2 Nf4 Nb3 Bb4 c1R Rb1 a1N Qa2 Rc2 Rb2 Rc1 Rg2 Na5 Rg5 Nc4 Rhg4 Nac2 Rh4 Nh6 g8Q N2a3 Qg7 Nf5 Qe5 Rg8 h8B Nb1 Bf6 Rh8 Be7 Rh5 Qf6 Nh6 Rg4 Qd8 Rh4 Be5 Bec5 Rc3 Rhg4 Bd6 Qe5 Kc7 Rh4 Bh3 Qf5 Qe7 Rhg4 Qe2 Ne6+ Kd7 Re4 Bg3 Rh4 Qc2 Rhg4 Nc6 Re4 Rg8 b8B N6e5 Rf4 Neg4 Re4 Rg7 Rf4 Kc8 Kc6 Nf2 d5 Bg4 d6 Nb6 Rd4 Be4+ Kb5 Kd7 Ka6 Nd5 Kb7 Ned3 Ka8 Kc6 d7 Ne5 d8B Nd7 Bf6 N5b6+
2QNn1qR/1rb4b/2bb4/p5R1/k2P3b/1r2NRpK/1nqn1P2/3B1QR1 w - - 0 1 legal: proof: g4 d5 c4 dxc4 e4 g5 b3 f5 Ba3 fxe4 Bd6 b6 a4 b5 h4 gxh4 Bg3 hxg3 axb5 Ba6 Qc2 Bb7 Qd1 Bc8 d4 Kd7 b4 e5 g5 h5 b6 Kc6 g6 Kb5 g7 c5 b7 e3 Rh2 e2 Rh1 c3 Qc2 e4 Bg2 c4 Ra2 h4 Rh2 h3 Rh1 h2 Ra6 Nd7 b8Q+ Nb6 Qd3 c2 Qc7 c1B Qd1 c3 Bf1 c2 Bg2 Rh7 Nd2 Nf6 g8R Ne8 Ra3 Bd6 Qb7 Rb8 Nb1 Bf5 Nf3 Bg5 Rg1 h1B Ne5 c1Q Bf3 Bh4 Qc8 Rhb7 Nc6 Nc4 Nd2 Nb2 Nf1 Bh7 Ne3 Qc2 Rd3 a5 Rg5+ Ka4 b5 Bc7 b6 Qd5 Nd8 Qg8 Qb1 Qc6 Kd2 e1B+ Ke2 Qc2+ Kf1 Bb4 Bd1 Bbd6 Rb3 Ra7 b7 Bf3 Nf5 e3 Rd3 Bc6 Rc3 Bb5+ Kg2 e2 Rf3 e1N+ Kh3 Bc6 Ne3 Qd5 Rf7 Nf3 Rf6 Nd2 Rf3 Qg8 Qc1 Rba8 b8R Rb7 Qb1 Qcb3 Qd3 Qc2 Qf1 Raa7 Rh5 Rb4 Rbb5 Rb7 Rbg5 Rb3 Rh6 Bd3 Rh8 Bh7
b2Q2Bk/2BNr2p/qQRr1P1B/3r2b1/3rP2q/1N6/2n1p3/n1K1bB1r w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 e5 e4 d3 Qd2 g5 Qe3 gxh4 a4 b5 axb5 f5 Ra6 f4 Rd6 fxe3 Rd4 exd4 Kd1 Kf7 f4 Kg7 g4 d5 c4 a5 f5 h3 c5 h2 b6 d2 b7 a4 g5 e2+ Kc2 d1R c6 d3+ Kb2 d4 g6 a3+ Kb3 a2 Kb2 a1B+ Kb3 d2 Kc2 d3+ Kb3 Be7 c7 Nc6 b8B Nh6 b5 Bb7 c8Q Nb4 b6 Ra7 Qc2 Bg5 Qc8 Ng4 Bd6 Ne3 Qc6 Ba8 b7 Nec2 b8Q Bc3 Nf3 Re7 Bc7 Na1+ Ka3 Qd6 Ne5 Rd8 f6+ Kh8 Qcb6 Nbc2+ Ka2 Re1 Nd7 d1R Nd2 Qa3+ Kb1 Qa6 Rg1 h1Q Nb3 d2 Rg3 Ba5 Rc3 Qh4 Rc6 Bb4 Bg2 Rh1 Bf1 Re1 Kb2 d1R Kb1 Rd5 g7+ Kg8 Kb2 Red1 Be3 R1d4 Kc1 Be1 Bef4 Rde8 Qd8 Re6 Bd2 Red6 Bf4 Kf7 Be3 Re7 g8B+ Kg6 Be6 Bh6 Bg4 Kf7 Bf5 Re8 B5h3 Kg8 Be6+ Kh8 Bg8 Re7 Bd2 Bf4 Be3 Bfg3 Bh6 Bf4+ Kb1 Bg5 Kb2 Ne3 Kc1 Nec2+
b1Q1q3/5BPP/bRr2r1r/B7/krN4p/nbpqNB2/3rQ3/Kn5B w - - 0 1 illegal: No proof kernel
2KN3R/B4pN1/k3q2P/2R2b1P/p2N2rQ/1r4n1/N3q1bb/n1Qnb2b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 exf4 a4 bxa4 Nc3 c5 Nb1 cxd4 Kf2 g5 Kf3 a5 Kg4 d5+ Kf3 Kd7 Kg4 Kc7+ Kf3 Kb7 e4 g4+ Kf2 f3 Kg3 d3 Kf4 d4 Ke5 f2 h4 g3 c4 g2 b4 d2 b5 d3 c5 a3 b6 a2 c6+ Ka6 b7 a4 c7 Bb4 Nc3 Bf5 c8Q Nf6 Qe1 d1N Be3 Qb6 Rc1 a1Q Nf3 g1B Bh3 f1B Nd4 d2 Na2 Bg2 Rc5 Nc6+ Kd6 Bh2+ e5 Qb2 Qd8 Qa7 Kc7 Rg8 Qe7 Rg3 e6 Rag8 Bf2 R8g7 Kc8 Na5 Qg1 Nb3 b8N+ Kb6 Qf1 Ne4 Nbc6 Na1 Nd8 Rb3 Qc4 Rg8 Qc1 Rg4 Qg5 Ka6 Qf6 Bh7 e7+ Qb6 e8N Ng3 Qe7 Qh6 Ng7 Qe3 h6 Bc3 h5 Bd3 Rg1 Bf5+ Nge6 Qc2 Qh4 Qcd3 Re1 Qde2 Bg1 Nb2 Bf2 d1B Rg1 Bdc2 Re1 Bfe4 Ng7 Bef3 Rd1 Be1 Rd3 Nd1 Rd2 Rg6 Be6 Bf5 Bg1 Rg4 Rb2 Rc3 Rb7 B3e4 Re7 Rb3 Re8 Bh1 Rh8 Beg2 Rc3 Ne4 Nf3 Q3d3 Ba7 Qde3 Rc5 Ng3 Nd4 Qxe6+
2Bq4/2nr1p2/1r1kpR1q/R2b2PK/1RQ1n1P1/1b1brb2/4Q3/b1NN2R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 d4 c6 d5 cxd5 f3 dxe4 f4 e3 g3 g5 Bb2 h5 Be5 h4 fxg5 Nh6 g4 Ng8 Bg3 hxg3 Ke2 b5 Kf3 d5 h4 Kd7 a4 e2 c4 e1R h5 d4 a5 b3 c5 b4 c6+ Kd6 h6 d3 h7 g2 c7 b2 a6 e6 a7 b3 Ra4 d2 Ra5 Re3+ Kf4 Bb7 c8Q Bd5 Rh6 Bg7 Rh3 Na6 Nc3 b1B Qc4 b2 Rf3 Rb8 a8R Ba2 Qde2 d1B Kg3 b1B Kh4 Bab3 Rf6 Nc7 Kh5 Rb6 Rb8 Bd3 Rb7 Rc6 Rb4 Rb6 Qe1 B1e2 Nd1 Bef3 Ne2 g1Q Nc1 Qg2 Qe2 Qg3 Rf5 Ba1 Bg2 Qe5 Bh1 Qg7 Rf6 Nh6 Bg2 Nf5 Bf1 Re8 h8R Re7 Rh7 Bh1 Bg2 Rd7 Be4 Bf3 Rh8 Ba8 Bb7 Bd5 Bc8 Ng3+ Kh4 Ne4 Kh5 Nc5 Rhh6 Bf3 Rh8 Ne4 Rh7 Bd5 Rhh6 Bh1 Rf1 Bg2 Rg1 Bf3 Rf6 Qh6+
4n3/qk1pbQp1/5qR1/3nb3/2R2bRb/1P2Q2n/1PN1bNrB/2R2r1K w - - 0 1 legal: proof: e4 f5 d4 fxe4 d5 b5 d6 h5 Bh6 b4 Bg5 b3 axb3 cxd6 Be3 d5 Bc1 d4 g4 hxg4 c3 a5 Kd2 a4 Ke2 a3 Nd2 a2 Bh3 Kf7 Ke1 Ke8 Rb1 a1Q Bf1 Qa2 Ra1 Qb1 Bc4 Nf6 Bg8 Nxg8 Kf1 e5 Kg2 g3 h4 d3 f4 e3 h5 e4 c4 e2 f5 e1B f6 e3 h6 e2 h7 Be7 c5 Na6 c6 Nc7 Nf1 d2 Rh4 Ba6 Rh3 Qa2 Ne3 Nd5 Kh1 g2+ Kh2 Bh4 c7 e1B c8Q Be2 Qdc2 d1N Q2c5 Nf2 Rg3 Qa7 Rg4 Bd2 Nc2 Nh3 Qe3 Bc3 Qc4 Be5+ Qcf4 Qdb6 f7+ Kd8 f8R+ Kc7 Ra4 Ngf6 Rc4+ Kb7 Rfc8 Ne8 R8c6 Qba6 Rcg6 Qf6 Bd2 Rf8 h8R Rc8 Be1 Rc5 Bg3 Ra5 Rh7 Ra1 Qf5 Rf1 Qe6 Rh8 Qf7 Bf4 Rh5 Rh7 Re5 Rh5 Ree4 Rg5 Red4 Be5 Rd1 Bf4 Rc1 Be5 Nf3 g1B+ Kh1 Bh2+ Ng1 Bf4 Bf2 Be5 Be1 Bhf4 Bg3 Rf2 Bh2 Rf5 Nf3 Ng1 Nd2 Rg5 Ne4 Rf1 Rg3 Rg4 Nf2 Rg5 Rf3 Rg2 Rfg3 Ba3 R3g5 Be7 Rg4 Nh3+
4b2k/P2P3q/q2BN2r/3Nbpr1/n2R1b2/b1R2Rpn/1Q3R1n/1K1Q2b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 h4 b5 e4 c5 a4 g5 d4 b3 Kd2 c4 d6 b4 d5 g4 e5 c3+ Kd3 b2 Kc2 b3+ Kd3 c2 e6 Bd7 h5 Ne7 h6 Qb6 a5 Ng6 h7 Qa6+ Kc3 Nf4 e7 Nc6 Qf1 Ne5 Nf3 g1B Rh3 g2 Ra2 Bh2 Ng5 g1B Ne6 Nf3 Qd1 f5 Rg3 Kf7 e8R Nh3 Bf4 c1B Rc8 Be8 d7 Ba3 Bd6 Bf4 d8R Rg8 h8Q Rg5 Qf6+ Kg8 Rc4 Kh7 Rdc8 Rb8 Rd4 Rb6 Rcc4 Rc6 Kd3 Kg8 Nc3 b1N Rf2 b2 Kc2 Rb6 Qe5 Kh7 Qee2 Kh8 Rc6 Qa7 a6 Qh7 a7 Be5 Na2 Nc3 Nb4 Na4 Rc3 Rc6 Kb1 Rb6 Rgg2 Bhf4 Rg3 Nh2 Rgf3 g3 Bc7 Bf6 d6 B6e5 d7 Rc6 Bd6 Rb6 Nd5 Ra6 Ka2 Rc6 Kb3 b1Q+ Qb2 Qd3 Ka2 Qa6 Kb1 Rh5 Bc7 Bg7 Nc5 Rch6 Bd6 Rg5 Ne6 Bge5
r1R2q2/4RqN1/2bK1R1Q/q4pbn/B1qk4/3p1PPn/R5b1/r2NQ2r w - - 0 1 legal: proof: b4 c5 d4 e5 a4 b5 axb5 cxb4 h4 exd4 h5 a5 h6 a4 Ra2 a3 Bb2 axb2 Ra6 gxh6 Ra2 h5 Ra1 h4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 e4 h5 g3 f5 c3 d5+ Kd3 b3 b6 h3 b7 h4 f3 h2 c4 h3 c5 Bd7 c6 Ne7 c7 Ng6 c8Q Bh6 Ra3 Qa5 Qcc1 Bg5 Qc8 Bc6 Qe1 Nd7 b8R Nf6 Ne2 Nh5 Rg1 h1R Ra2 h2 Rb6 Re8 Nbc3 b1Q+ Rc2 b2 Nd1 Re6 Rg2 Qba2 Qf8 b1Q Nf4 Qbb4 Qh6 Qf8 Ra6 Re7 Ne6 Rea7 Ng7 Qb3+ Rc3 Qf7 Ra2 Ngf4+ Kd2 d3 Ke3 d2 Bb5 Qf8 Ba4 Nh3+ Kd3 d4 Rb6 Bb7 Rf6 Qbf7 Rc7 Bc6 Rc8 Qg6 Kc4 d3 Kb3 Kd4 e5 Qgf7+ e6 Kc5 Ka3 Kd4+ e7 Qc4 Kb2 Ra6 e8R Qcf7 Re7 Qc4 Nf2 d1Q Ka3 Qdc2 Nd1 Qcf7 Re6 Rg1 Rf6 h1B Rb8 Bg2 Rc8 Qe5 Kb4 Rh1 Bb5 Ra3 Ba4 Qc1 Rf2 Ra1 Ra2 Bd5 Kb5 Bc6+ Kb6 Qed5 Kc7 Qa5+ Kd6 Qcc4
1K2B3/NbR5/bB4p1/4q3/Q3qrP1/bQP1Brrb/1np1B2k/1n4nN w - - 0 1 legal: proof: g4 b5 f4 h5 a4 e5 axb5 exf4 c3 h4 Qa4 Ne7 Qc2 Ng8 b4 c5 Ra5 cxb4 Nh3 d5 Ng1 d4 Ra6 d3 Rd6 dxc2 Rd3 Nh6 Rh3 Ng8 Rg3 hxg3 e4 Kd7 Ke2 Kd6 Kf3 Ke5 h4 a5 b6 f5 b7 g6 h5 a4 h6 g2 d3 a3 h7 b3 Rh3 b2 Be2 a2 Rh4 a1Q Nh3 g1N+ Kg2 f3+ Kg3 f4+ Kh2 f2 Bd2 f1B Nf2 f3 Kg3 Nc6 b8Q+ Qc7 Qb3 Bb7 Na3 b1R Nh1 f2 Be3 Nb4 Nb5 Qa4 Na7 Nf6 Rh3 Rg8 h8Q Qg7 Rh6 Bh3 Rh7 Qe8 Qa4 f1B Qb3 Bd6 Qa4 Rf8 Qg8 Qh8 Qgb3 Rc8 Rg7 Rc4 Rh7 Rd1 Rc7 Rd2 Bf3 Rf2 Be2 Rf3+ Kh2 Qe6 Rc6 Ne8 Bd1 R3f5 Kg3 Nf6 Bf3 Qe8 d4+ Ke6+ e5 Nd3 Rc8 Nb2 Rc5 Bd3 Be2 Rf7 Rc8 Ba3 Rc6+ Kd5 e6 Ke4 e7 Rb4 d5 Bda6 d6 Ke5 d7 Ne4+ Kh2 Nd2 Kg3 Nb1 d8B Rf2 Ba5 Qg7 Bab6 Rg2+ Kh4 Ke4 Kg5 Rg3 Rc5 Qc6 e8B Rf6 Bc4 Kf3 Be2+ Kg2 Rc4 Re6 Kf4 Rf6+ Ke5 Kh2 Rc5 Qg2 Rc6 Rf5+ Kd6 Qe5+ Kd7 Rf1 Rc7 Rbf4 Kd8 Qge4 Kd7 R1f3 Kd8 Bd3 Kd7 Ba8 Kc8 Ba6+ Kb8 B8b7
Q4nq1/3R1rRr/n2b1p1k/3Kb1qP/r4Nn1/B1p2P2/q2RN2Q/4R1r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 g5 d5 g6 Bf5 c3 bxc3 Bh3 Kd7 Bg4 hxg4 Nf3 dxe4 Ng1 f6 Qb3 Be6 Qd1 Bf7 gxf7 Ra6 Qe2 Ra3 Qd1 Ra8 Ke2 Ke6 Ke3 Kf5 h4 Kg6 a4 b5 d4 e5 h5+ Kh6 a5 c5 a6 g5 a7 b4 f3 c4 d5 b3 d6 g3 d7 g4 Rh2 g2 Ra6 b2 Qd3 g3 Rb6 c2 Nd2 b1Q Qf1 c3 Rb7 Ne7 Qe2 Rh7 Rc7 Qa2 Nb3 Ng6 Qc4 Bd6 f8R Na6 Bb2 c1Q+ Ke2 e3 Kd3 e4+ Kd4 e2 Nh3 e1B Na1 g1N Nc2 g2 Rh8 e3 Ba3 e2 Kd5 Beg3 Nd4 e1R Re8 Bge5 Nf4 Nf8 Nde2 Nh3 Qb3 Qc8 d8R g1R Rg7 Nf2 Rdd7 Ng4 Qc4 Qe3 Re6 Ra1 Ree7 Rb8 a8Q Rb3 Qc7 Qc1 Ng2 Qg5 Ngf4 Qd8 Nd4 Qe8 Rd2 Qf7+ Re6 Qg8 Nde2 Rb7+ Qc4 Qc2 Qc5 Ra7 Qf2 Qa4 Qh2 Rb7 Rd8 Rf7 Rd7 Qc2 Ree7 Qa2+ Kc6 Rad1 Ng3 Qe6 Bc5 Ra1 Bb4 Ra4 Ba3 Qb3 Re8 Bd4 Re1 Qb1 Nge2 B4e5 Kd5 Qa2+
R2b1NQ1/1rn1n2q/QBbpP1qN/6Bb/B1B1r3/4nn2/1P2qp2/K1k5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Ra2 exf6 Ra3 f5 Rh3 f4 Rg3 fxg3 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 h4 a5 b6 f5 h5 g4 c5 a4 b7 d3+ Kc3 a3 c6 f4 c7 d2 h6 d6 h7 a2 Bd3 a1N Bf1 f3 Bd3 Kf4 e5 Ke3 e6 f2 Bg6 Nc2 Rh3 Ne7 Kb3 Bd7 c8B Qc7 Be8 Bc6 Na3 Ra4 Ka2 Re4 Nb5 Na6 Ne2 g1Q b8Q Qf1 Nf4 Qe2 Nd4 Qb7 Bed7 Nc7 Qf1 Rg8 h8B Rg7 Rh2 g2 Ng6 g1N Nf5+ Kd3 Rh5 d1B Nh6 g3 Bg5 Ne3 Ka1 Kc2 Qa8 Qa7+ Ba6 g2 Rh4 Rh7 Bd4 Nf3 Bb6 g1Q Qb8 Qb7 Bc4 Kc1 Rh1 Bg7 Qg8 Bf6 Nf8 Qg4 Be8 Qh5 Rg1 Qg6 Rg2 Ned5 Rg4 Bd8 Rf4 Rf7 Rf5 Ne7 Ra5 Rf5 Ra8 Rb5 Qe1 Qa7+ Qa5 Rb4 Qa6 Rb3 Bc5 Rb7 Bd4 Qc5 Bd7 Qcf5 Bb6 Qh7 Be8 Qfg6 Bd7 Bd5 Bdb5 Bc6 Ba4 Qd2 Nd7 Nd4 Qg7 Bh5 Nf8 Nf3 Qg8 Qe2
Rr2qbK1/Qn4N1/2p2Q2/1q1qBP1R/4r2n/2qN3n/1P1Rp1k1/1r1bR3 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 dxc4 a4 g5 axb5 gxh4 e5 a5 e6 f5 Nh3 a4 Bd3 a3 Be4 a2 Na3 fxe4 Rb1 a1Q Ng1 Qa2 Ra1 Qb1 Qe2 Bxe6 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 e5+ Kh5 h3 d4 h2 g4 c6 f4 c3 b6 c2 g5 e3 b7 Ke4 g6 e2 g7 e1R d5 Ra4 d6 Na6 b8Q Qe8+ Kg5 h5 d7 h4 d8R h3 Rd7 Nh6 Kf6 Nc5 g8R Nf5 Qa7 Nb7 Qa8 Nh4 Bd2 c1Q Nf3 Qd3 Nc4 Qcc3 Ne3 Qb5 Nf5 Rc4 Qb3 Rb1 Ng7 Rd4 Rd5 Bg4 Ne1 Bd1 Nd3 Kf3 f5 e4 Qa7 Kg2 Bf4 e3 Be5 e2 Qba4 Rg4 Q4d4 Re4 Re1 h1N Rd8 Rh7 Rh8 h2 Qd6 Rh5 Qe7 Rg5 Rh5 Nf2 Ra4 h1Q Rad4 Kh3 Ra8 Kg2 Qe6 Nh3 Rd5 Qb8 Kf7 Qe8+ Kg8 Rg6 Qe7 Rd6 Qf6 Rd8 Nc1 Rb8 Rd2 Qg1 Nd3 Qgd4 Qc5 Qd6 Qa7 Qdd5+
Q1q2R2/2rBrPRr/b2q2K1/2N3n1/3kN1R1/1p1P2p1/1q2q1nn/b3Q2R w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 f5 b4 axb4 e4 fxe4 h4 g5 Bb2 gxh4 Be5 Ra7 Bh2 Ra8 Bg3 hxg3 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 h5 f4 b5 a4 e5+ Kg6 b3 a5 b4 d3 e3 f5 e2 f6 e1N g5 e4 f7 h4 d6 h3 a6 b2 d7 b3 a7 e3 Rh2 e2 Ra6 Nf6 Rh1 h2 Na3 b1Q Ra5+ Kd4 Bg2 c5 Bf1 c4 Qd2 c3 Qc1 c2 Nc4 Ng2 Ne3 e1R Ng4 Ne4 Qd1 c1Q Nh3 Nc6 Nf6 Bg7 Nf4 Rh7 Ra4+ Qc4 Be2 Qb2 Bg4 Ba6 Qe2 Rc8 a8Q Qe7 d8R+ Qd6 Bd7 Rc7 Rf8 Bh8 Qd2 Re3 Qe1 Ne5+ Kf5 Nf3 g6 Re2 g7 Neg5 g8R Re7 Rg7 Qe2 Ne4 Qb2 Rg1 h1Q Rf1 Qh4 Rh1 Qh5 Rb4 Nh2 Ra4 Qhe2 Ne6+ Ke3 Kg6 Qcc6 Nf6 Qb7 Rg4 Qc8 Ne4 Qd2 Rgg8 Ba1 Rg7 Qb2 Nd2 Qf4 Nc5 Kd4 Nde4 Qd6+
1Q1Bqq2/5p1p/bqQ1n1k1/1rPBb3/2rP1bN1/1Q3Qr1/1n2b3/R3N2K w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 gxh4 c4 e5 Ra2 exf4 Rc2 d5 axb5 cxb4 c5 Bd6 Rc3 Bf8 Rc4 dxc4 Kf2 a5 e4 b3 g4 a4 Kg2 b2 e5 h3+ Kh2 a3 d3 c3 e6 a2 b6 a1B b7 c2 e7 f3 g5 f2 g6 Bh6 g7 Na6 b8Q Nb4 Qd6 Ra3 Qe6 Nf6 Qee2 Nfd5 Bd2 c1R Qh5 Nf4 Qde2 Ba6 Qe1 Rc4 Qf3 Ne6 Nc3 b1Q Bg2 f1B Ne4 Be2 Bg5 Be5+ Qeg3 Qc8 d4 Nd3 Bf6 Bhf4 Nf2 Qb6 Ng4 Nb2 g8Q+ Kd7 Qb3 Qf8 Bd5 Ra5 Bh4 Rb5 Nf3 Ke8 Qg6 Rg8 Ra1 Rg7 Kh1 h2 Ne1 Rg8 Kg2 Rg7 Qgf3 h1Q+ Kf2 Qh3 Kg1 Qg3+ Kh1 Qf2 Qf6 Qe3 Nf2 Rg3 Ng4 Kd7 e8Q+ Kc7 Qb8+ Kd7 Qg6 Qe4 Bd8 Ke8 Bc7+ Ke7 Nf2 Qe3 Qge4 Kf6 Ng4+ Kg5 Bd8+ Kh5 Qed3 Qe4 Qd2 Kg6 Qa5 Qc6 Qac7 Qce8 Qc6 Qf5 Bg5 Qf6 Bh4 Qfd8 Bg5 Qa5 Bd8 Qb6
1R3R2/2R1p1q1/1b1P1p2/2qnKB1R/4nrq1/Q1n2bbr/Q2P3B/3b1k1N w - - 0 1 illegal: No possible last move
3Q1NrK/4p1n1/kPb3p1/1q1Nr1bQ/1R4r1/PBqb4/qn2Nr2/2B1N3 w - - 0 1 illegal: No possible last move
b3nbn1/n2PQQ2/5R1r/1N2qqQB/1r1ppN2/K1BP4/4q2k/2Qn2b1 w - - 0 1 legal: proof: b4 a5 h4 axb4 c4 c5 a4 g5 e4 gxh4 e5 d5 e6 fxe6 Ra3 e5 Rd3 e4 Rd4 cxd4 cxd5 Bg7 Qf3 Bh6 Qd1 Bf8 f4 Kf7 g4 Kf6 a5 e5 d6 b5 g5+ Kf5 g6 h5 a6 h3 a7 b3 g7 b2 d7 h2 Ke2 Kg4 f5 Kg3 f6 h4 f7 b4 Bh3 b3 Na3 b1Q Nb5 b2 Qb3+ e3 Kd1 Qc7 Na3 Na6 Qb7 e2+ Ke1 Rb8 a8Q Rh6 Bf5 h3 Be6 Qf5 d3 b1N Qb2 e4 Nb5 Na3 Kd2 Qce5 Qd5 e1B+ Kd1 Rb6 Bd2 Nc7 Kc1 Bb7 Bc3 Ba8 Ne2+ Kg2 Qc5 Ne8 Rf1 h1Q Qe7 Bf2 Nf4+ Kh2 Qa1 Rb8 Kb2 Qg2 Qc1 Bg1+ Kb3 Qe2 Qg5 Be7 f8Q Rb7 Qff6 Bf8 Bf7 Rb8 Qe7 Rbb6 Ka4 Rb7 Nd6 Nb5 Bh5 Na7 Ka3 Rb2 Nb5 Rb4 Qgf6 Kg3 Qef7 h2 Q6e7 h1N Rf3+ Kh2 Rf1 Ngf6 g8Q Nf2 Qgg6 Nd1 Qg5 Qfg4 Nd5 Ng8 Rf6 Qh3 Nf4 Qhf5
Q1N1n3/1PB1nKR1/1q2N1Q1/b2b3p/7p/rN1NbqP1/R3q3/1k2nq1r w - - 0 1 legal: proof: a4 c5 d4 cxd4 h4 e5 f4 exf4 h5 b5 e3 d3 axb5 g6 c3 gxh5 Be2 h4 Bf3 Be7 Bd5 Bb4 Bb3 Bf8 Bc2 dxc2 Kd2 Ke7 Kd3 Kd6 Kd4 a5 b4 a4 g3 f3 b6 a3 e4 f2 b5 f1Q c4 a2 b7 Qb6+ Kc3+ Kc5 e5 d5 e6 d4+ Kb3 d3 e7 Kd4 e8Q d2 c5 Kd3 c6 Na6 b8N Ne7 c7 Qf3 Nh3 Bb7 c8N Nc7 Nc6 Ra3+ Kb4 f6 Nd8 Bd5 Ne6 h6 Bb2 c1B Qa4 d1Q Qa8 Kc2 Nf2 Be3 Nd3 Qde2 Qg6 Ne8 Nd2 Bg7 Rh2 Rh7 Re1 a1N Nb3 Bf8 Bc1 Kb1 Rd1 Nc2+ Kc3 Qb7 b6 Ne1 Rf2 Qa6 b7 Qb6 Rh2 f5 Rf2 f4 Rd2 h5 Ra2 Rf7 Bb2 Bc6 Kc4 Bg7 Ba1 Bc3 Rf1 Ba5 Be5 Qh1 Bc7 f3 Rg1 f2 Rg2 f1Q Rf2 Rf8 Rf7 Be4 Rh7 Qhf3 Rg7 Rf5 Ng5 Bed2 Ne6 Rc5+ Kd4 Rc1+ Ke5 Be3 Nec5 Bc6 Ke6 Bf4+ Kf7 Bd5+ Ne6 Be3+ Nf4+ Nc2 Qd3 Qh3 Qf5 Rh1 Nd3 Ne1 Qf6 Qhf1 Qf5 Nf6 Qg6 Ne8+
nk2K3/n7/1qR2bRb/bR1rnP1n/B1N1r1pR/1Nn2Q2/p1n1Q1P1/8 w - - 0 1 legal: proof: d4 f5 e4 fxe4 a4 b5 h3 bxa4 b3 c5 Ba6 cxd4 Bb5 a3 Bb2 axb2 Bf1 Ba6 h4 g5 h5 Bc4 Qf3 Bf7 Qd1 Bg6 hxg6 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 e5 c4 a5 f4 h5 g7 d5 b4 Kd7 b5 Kc8 c5 g4 c6 e3 Kd3 e4+ Kc2 h4 Kb3 h3 Ka4 d3 c7 d4 f5 h2 b6 e2 Kb5 e1B Qd2 e3 Qd1 a4 Nc3 b1N Qd2 e2 Nf3 a3 Ng1 a2 Ne4 Nf6 g8Q Na6 Kc6 Bh6 Qc1 d2 Qgc4 d1N Q1c3 d3 Qa5 d2 Qcb4 Na3 Qd5 Nd7 Qa4 Nb5 Nf3 Ne3 Nd4 d1N Qac4 Ba5 Rb1 e1B Qe2 Bh4 Nd2 Re8 N4b3 Bf6 Nc4 Ndc3 Qdf3 Re4 Rd1 Rb8 Rd6 Nc2 Re6 Na7+ Kd6 Bh8 Rg6 Ne5+ Ke6 Qd4 Ke7 Bf6+ Ke8 Kb7+ c8R Ka8 Rd8 Rc8 b7+ Kb8 Qe1 Qf2 Be2 Qb6 Bd1 Nd4 Qee2 Nc2 Rf1 h1N Rf2 Kc7 b8R Ng3 Rf1 Nh5 Rh1 Qd4 Rb4 Qb6 Rh4 Kb7 Rb5 Rc5 Rd5 Kb8 Rd6 Rd5 Re6 Bh8 Rc6 Nc7+ Ke7 Na8 Ke8 Ne3 Nc1 B8g7 Ba4 Nc2 Nb3 Bf6
2N3K1/1Q3p2/r1bPb1R1/2R1bR1n/1bPnBR1r/2b2n1q/p1Nk3b/1Q6 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 hxg4 c4 e5 Ba3 exf4 Bb2 cxb4 axb5 d5 Bc3 d4 Ra3 dxc3 Ra5 Bd6 Ra1 Bf8 Kf2 Kd7 e4 Ke6 d4 g5 h4 a5 e5 Kf5 h5 Ke4 b6 b3 e6 a4 b7 a3 e7 g3+ Kg2 Ke3 e8R+ Be6 d5 c2 h6 c1B h7 g4 Nf3 b2 Rh2 a2 Bd3 Nc6 b8Q Bb4 d6 Nd4 Rh6 Qh4 Qh1 Bcd2 Qb7 Bdc3 Na3 b1B Ne5 Ra6 Ng6 Kd2 Nc2 Nf6 Ne7 Nh5 Rg6 f3+ Kg1 g2 Rc8 Qf6 Kh2 f2 Be4 Qf5 Rc5 g1B+ Kg2 f1N Nc8 Bh2 Qg1 Rd8 h8R g3 Rhh6 Rg8 Rg5 Qh7 Rgf5 Rh8 Kh3 g2 Kh4 Be5 Kg5 Nh2 Qh1 g1B Rg6 Ng7 Rf4 Qh3 Rf5 Nh5 Rf4 Rf8 Kh6 Nhf3 Kh7 Re8 Rf5 Re7 Kg8 Bgh2 Na3 Bc2 Rf1 Ba4 Nc2 Bc6 Qg1 Nh4 R1f4 Nhf3 Qf1 Re8+ Kh7 Rg8 Qb1 Rg7+ Kh8 Rh7+ Kg8 Nf6+ Kf8 Rh4 Kg7 Nh5+ Kh7 Ra5 Kg8 Ra6
K2Nq1Br/bRr2Rb1/p7/1nP1Q3/2Prb3/2p2bb1/2Q2RR1/k1rn1B2 w - - 0 1 illegal: No proof kernel
bq1QB1rN/1nq5/K3p1N1/1r1bR2P/N1Q1Nr1B/pqP5/4q2n/1r1k4 w - - 0 1 legal: proof: f4 b5 b4 e5 a4 bxa4 g4 h5 d4 hxg4 Ra3 c5 Re3 cxd4 Re4 Be7 e3 Bg5 f5 Bf4 exf4 Qa5 Re3 Qd8 Rh3 e4 Rh6 Qe7 Ra6 Qd8 Re6+ fxe6 Ke2 Kf7 h4 Kf6 h5 d5 c3 a5 b5 g5 b6 g3 b7 e3 Kd3 e2 Bd2 e1Q Na3 g2 Qa1 g4 Qb1 g3 Rh3 Nd7 b8Q Nh6 Rh1 Nc5+ Kc2 d3+ Kb2 d4 Qd6 Qc7 Qc6 Bb7 Qb5 Ng4 Qc2 Rhf8 Qcb3 Nh2 Nb1 Qe2 Ka3 Rab8 Be1 d2 Nh3 d1Q Qe8 g1R Qc4 g2 Nf2 d3 Nd2 Bd5 Nb3 Nb7 Nc5 d2 Qd7 Qb1 Qd6 d1B Nfe4+ Kg7 f6+ Kh6 f5 Qbc2 Ng3 Kg5 Nge4+ Kg4 f7 Kf3 f6 Rg8 f8N Rg4 f7 Rf4 Ng3 Ke3 Bf2+ Kd2 Ng6 Qb1 f8N Qb4+ Ka2 a3 Qd8 a4 Nh8 Qbb6 Nfg6 Qb3+ Ka1 a2 Nge4+ Kc1 Bh4 Bc2 Na6 Kd1 Nac5 Nf3 Rh3 Nh2 Rg3 Rh1 Rg5 g1R Re5 Rg5 Qd6 Rg8 Qd8 Na5 Bg2 Qbb8 Bf1 Nb7 Kb2 Rhg1 Ka3 a1Q+ Kb4 a3 Kb5 Qb1+ Ka6 Qb3 Na4 Bb1 Nf6 Be4 Bg2 Kd2 Bf3 Rb1 Bh1 Bf3 Ne4+ Kd1 Qc8 Bc6 Ng3 Ra1 Rf5 Nd6 Qd8 Ba8 Ra5 Bfc6 Bd5 Rb1 Ne4 Bd7 Bb7 Bc6 Bc8 Rd5 Bd7 Nb7 Rb5 Rd6 Rf5 Rd5 Re5 Rb5 Be8+ Bd5
1R2Nb1Q/3q1rr1/P5q1/2B3p1/Bbb1nqPB/b4B1R/3q1p2/1kn1Q1K1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 Nc3 h5 Nce2 c5 dxc5 h4 Ng3 hxg3 a4 Kf7 c4 Kf6 h4 Ke5 f3 g5 a5 d5 c6 b5 c7 b3 c5 g2 Kf2 b2 c6 b1Q a6 b4 h5 b3 h6 d4 h7 e3+ Ke1 e2 Kf2 e1B+ Ke2 b2 f4+ Ke4 f5 e5 f6 Beb4 Kf2 d3 f7 d2 Qa4 d1Q Qb5 Q8d2+ Be2 Nd7 Qb6 Ngf6 Nh3 Ra7 Nf4 Nc5 Ne6 Nb3 Rh3 Rg8 Ng7 Be6 c8Q Bc4 Ne8 Rg7 h8Q g1B+ Kg2 Qbd3 c7 b1Q Qf2 Qd6 Bf3+ Kd3 Qe6 Kc2 c8B e4 Bd7 Qf4 Ba4 Rb7 Qe5 e3 Qa5 Bh2 Bb2 Rd7 Bc3 Ne4 Ra2+ Kc1 Rb2 Qbd3 Be5 Qd6 Bc3 Qg6 Be5 Ba3 Bb8 Bfb4 f8B Rdf7 Bc5 Qd7 Bc7 Bg3 Bb8 Q1d5 Kg1 Qd2 Ra2 Kb1 Rb2+ Ka1 Bbd6 Nc1 Bb8 Qff5 Bc7 Bd6 Rb3 Bf8 Bg3 Qf4 Bh4 Bc3 Rb8 Bcb4 Qd8 Ka2 Qe1 Kb1 Qf6 Qfd6 Qf4 Qdf6 Qh2 Qf4 Qhf2 exf2+
1n5b/k6P/1bB1r2n/q1q2QQ1/2pP3n/1q3q1B/1n1rp1NB/BR2K1R1 w - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 g4 axb4 Nf3 f5 Ng1 fxe4 f4 h5 f5 Qd5 f6 Qd8 Nc3 Ra5 Nd5 Ra7 Ne3 Bf5 gxf5 Ra8 Ng4 hxg4 h4 Kd7 a4 Kc6 a5 e5 f7 b5 a6 Kb6 h5 g5 f6 c5 a7 c3 d3 e3 h6 c4 h7 b3 Rh4 b2 Ne2 b1Q Ra5 e4 Ba3 c2 Ng3 c1N Be2 b4 Qd2 b3 Nf5 g3 Nd4 g4 Qc3 g2 Rah5 g1Q+ Bf1 b2 Nc2 g3 Rf4 e2 Be7 g2 Rc5 Nh6 Rf2 Bg7 Bd6 Re8 f8Q Re6 f7 Bh8 Rg5 Qa1 Rc5 b1Q Ne3 Qa5 Bh2 Qd5 Qd2 Qb3 Rb5+ Ka6 Rf6 Qc5 Rf3 Qh1 Rg3 g1B Bh3 Qf3 Ng2 Be3 Rb4 Bed4 Qg5 Bg1 Kd2 e1N Rg4 Ne2 Rg3 Nc3 Rb7 Bf2 Qc8 Bfd4 f8B Bg1 Bg7 Nd1+ Bc3 Nb2 Qf8 Bgd4 Qff5 Bf2 Nf4 Bfd4 Rg1 Ng2 Rb5 Nh4 Ng2 e3+ Ke1 e2 Rb7 Bde5 d4 Bc7 Rb4 Bb6 Rb5 Nd7 Rb4 Rb8 a8B Ka7 Bd5 Rb7 Bc6 Nb8 Rb5 Re3 Rb4 Rd3 Rb5 Re7 Rb4 Rd2 Rb5 Nd1 Ba1 Re6 Rb4 Qba2 Rb2 Qab3 Rb1 Nb2
3b1B1q/B1bq4/1QR2n1p/p2q1b1N/3K3n/P2P1B1B/4rNQb/3bkn2 w - - 0 1 legal: proof: e4 b5 c4 bxc4 f4 a5 g4 g5 h4 gxf4 g5 Ra6 h5 Rg6 hxg6 d5 Qc2 dxe4 Qa4+ Nc6 Qd1 Nb8 Kf2 Kd7 b4 Kc6 d3 Kb5 g7 e5 g6 f5 Be3 c5 Qc1 f3 Nd2 f4 Bg2 h6 Qc3 Ne7 g8B Nd7 g7 Nf5 Qa3 c3 Nf1 c4 Ng3 c2 Ba7 c1Q Nf1 c3 Qb2 c2 Bf7 Qb1 g8Q c1Q Qg3 Bd6 Qh2 Qc6 Qc3 Bc7 Bb3 Nf6 Bf7 Re8 Bh3 Re7 Bb6 Qh8 Ne2 Qc2 Rg1 Nh4 Rc1 Qa4 Ke1 f2+ Kd2 f3 Ne3 f1B Qf4 f2 Bc5 Re8 Ng3 Be2 Bg8 Bd1 Qb2 f1N+ Kc3 Bd8 Ng4 e3 Be6 e2 Nh5 e1B+ Qfd2 e4 Bd5 e3 Bf3 e2 Kd4 Bg3 Bf8 e1B Qe2 Qc7 Rc6 Bh2 Rg3 Qb3 Qg2 Re2 a3 Qa2 Qb1 Ka4 b5 Bb4 b6 Bd6 b7 Bf4 Qc1 Kb3 b8B Qch7 Ba7 Bfc7 Nf2 Bg4 Bd6 Qd7 Qc5 Be6 Rg4 Kb2 Re4 Bf5 Re5 Kb1 Rd5 Kb2 Be7 Kb1 Kc3 Kc1 Kd4+ Kd2 Qb6 Ke1 Bf8 Qaxd5+
3k1nQq/2Rq2qr/1nP2b2/2p3p1/RP1BR2r/4RKQq/2r1Bn2/2N4q w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 g4 h5 d4 hxg4 c5 a4 Nd2 b6 Nb3 axb3 d5 Bb7 Bg2 bxc5 Bf1 c4 Bh3 c5 Bf1 Bc6 dxc6 Bd6 Nf3 Be7 Ng1 Bf8 Kf2 d5 h4 f5 e4 d4 a4 c3 h5 b2 e5 b1Q h6 c2 a5 g3+ Kf3 d3 a6 g2 a7 d2 h7 Ne7 e6 Qb2 Rh4 Nd5 e7 Nb6 Bd3 N8d7 Kf2 f3 Nh3 f4 Qf1 d1N+ Ke1 g1Q Ra2 f2+ Kd2 f3 Qg2 f1Q Ra4 Nf2 Ke3 g5 Qh2 Qg4 Ng1 Qg7 Qg3 Qfh3 Bb2 c1R Ne2 Rc2 Nc1 Rc8 a8R Rc7 R8a5 Qg8 Bc4 Ne4 Qe5 f2+ Qg3 f1Q Ra6 Nf2 Bd4 Bg7 Be2 Bf6 Ra7 Qfh1 Rb7 Qh5 Rf4 Nf8 Rg4 Kf7 e8R Qh6 Re5 Re7 Rba7 Ke8 Rc7 Qd7 Rf4 Kd8 Rh4 Qd1 Kf3 Qf7 Re3 Re4 Rf4 Qfg7 Rf5 Rh4 Rfe5 Rg8 h8Q Qdf1 Qh7 Rh8 Qg8 Qhh7 Qf7 Qhg8 Qc4 R8h7 R5e4 Q8h8 Qg8 Qfh1+
2k1qn2/Q2b2PQ/q2R4/1B1Kpp1r/NNN5/q2Rr2q/bq3P2/b1r2N2 w - - 0 1 legal: proof: c4 g5 e4 d5 h4 dxe4 g4 a6 b4 Qd6 h5 Qe6 Bb2 Nc6 Bf6 Ne5 b5 Ng6 hxg6 axb5 g7 bxc4 Be5 c3 Bg3 Qb6 Bh4 gxh4 g5 Qd6 g6 Qd8 Ke2 Kd7 Ke3 c5 a4 h5 d4 f5 a5 b5 a6 c2 a7 c1R d5 h3 d6 c4 Kd4 h2 Na3 h4 Ra2 c3 Ke5 h3 Be2 e3 Qa4 c2 Bg4 e2 Nc4 e1Q+ Kd4 Qd2+ Kc5 Rh5 Qa5 b4 Ra3 b3 Qc3 b2 Bf3 b1B Be2 Ba2 Nf3 Nf6 g8Q Bg7 Qd4 Nh7 Rd3 Nf8 Qh7 Qe8 Rd1 h1Q Kd5 Qf1 Nh2 Kd8 Qc5 Ba1 g7 e5 d7 Qa5 R1d2 Qa3 Qe7+ Kc7 d8N+ Bd7 Nc6 Kc8 Nb4 Rb8 a8N Rb7 Ng4 h2 Ne3 Qh3 Nf1 h1Q+ Kc5 Qg1 Kd5 Qgg6 Rd1 Qga6 Nb6+ Kb8 Na4 Kc8 Qc5+ Rc7 R1d2 Re1 Qa7 c1Q Rg3 Rc6 Rg6 Qcb2 Rd3 Rc1 Rd6 Rc3 Rd1 Re3 Rd3 Rc7 Rd4 Bb1 Na5 Qh2 Bb5 Qh3 Rd3 Rc1 Nc4 Ba2
B1rnRQ2/1Nr4Q/1qp3p1/Rr2qr1P/2R2b2/1krr2n1/4KB1P/4nR2 w - - 0 1 legal: proof: f4 a5 c4 d5 b4 axb4 f5 dxc4 Nc3 h6 Ne4 e6 Ng5 exf5 g4 hxg5 Nf3 f4 Ng1 Bf5 Ba3 Bg6 Bc1 Bh5 gxh5 Kd7 Nf3 Ke7 Ng1 Ke8 a4 Ke7 d4 Kd6 e4 b5 e5+ Kd5 a5 f5 e6 c3 a6 g6 e7 g4 e8Q c2 a7 g3 Ne2 Kc4 d5 g2 d6 g1N d7 b3 Bd2 c1R Ba5 b2 Qe3 b1R Qb6 b4 Bh3 b3 Bb4 f3 Nf4 f2+ Kf1 b2 Ne6 f4 Nc5 Rc3 Qb7 Qg5 d8R Qe5 Qc8 Rh7 Ne6 Nf3 Ra5 Bd6 Bg2 Nc6 Qb8 Ne1 Rd7 Nf6 Nd4 Nd8 Qc8 Ne4 Ke2 f1R Nf5 Rff3 Bc5 Rfd3 Qb7 Rc8 a8R Rf7 Bf2 f3+ Kf1 Re7 Qc1 Rg7 Qf4 Re7 Qa7 Kb3 Qh6 Rh7 Qf8 Rg7 Re7 Rf7 Re8 Re7 Bg3 f2 Ke2 f1R Rc5 Rf4 Rf1 Rg7 Bf2 Rf7 Ng7 R4f5 Rc4 Re7 Ne6 Rd7 Bh3 c6 Nc5+ Kc2 Nb7 Kb3 Qd4 Rdc7 Ra5 Qb5 Qdg7 Bf4 Qh7 Qe5 Qd7 Ra1 Qh7 b1Q Ra7 Ra5 Ra6 Rb5 Ra5 Rff7 Be6 Rf5 Bd7 Rb8 Bc8 Ra8 Nd6 Rab8 Bb7 Rbc8 Ba8 Qa1 Ra7 Qa6 Nb7 Qb6 Ra5 Ng3#
nNn1n3/1q1r1qp1/4k3/P1q1qNQ1/5K2/RPp5/Nq3NbB/3BQ1rq w - - 0 1 legal: proof: f4 a5 g4 b5 c4 bxc4 f5 h5 f6 hxg4 Nc3 a4 Nd5 a3 Nc3 exf6 Nb1 f5 Bg2 f4 Bh3 Qg5 Bf1 Qd8 d4 c5 b3 c3 Qc2 c4 Qd1 Bc5 dxc5 Nc6 Nd2 Nge7 Rb1 Nb8 Rb2 axb2 Nb1 Ng8 a3 Na6 a4 Nb8 Kf2 Ke7 h4 d5 e4 f5 a5 g3+ Kf3 c2 c6 d4 e5 g2 h5 d3 c7 d2 e6 c3 h6 Qd5+ Ke2 f3+ Ke3 f2 h7 f4+ Ke2 f3+ Ke3 Qe5+ Kd3 Nc6 Rh2 Nf6 Qe2 d1Q+ Nd2 b1Q Qe1 Ra7 Be2 Bb7 c8Q Re8 h8N f1Q Nf7 f2 Nh6 Qb2 Rh1 Kd6 e7 Rf8 Qc7+ Ke6 e8N Ne7 Qd8 Nc8 Nf5 Bf3 Rh4 Rd7+ Rd4 Be4+ Ke3 Rh8 Rb4 Rh1 Ra4 Bb7+ Ne4 Qdd5 Bd2 c1Q Bd1 Ba8 Ne2 g1Q Ra3 Qb7 Kf3 Qg5 Be3 Rg1 Bf4 Qca1 Bh2 Qc5 Ned6 Ne8 Ne7 Qge5 Nc1 Qfc4 Ndf5 f1N Na2 Ne3 Nc6 Nd5 Qg5 Ndb6 Nb8 Qac1 Ng3 Qf1+ Kg4 Qf7 Nf2 Qcb1 Kh3 Q1e4 Nf5 Qh1 Kh4 Qa6 Kh3 Bg2+ Kh4 Qb7 Kg4 Qee2+ Kg3 Na8 Kf4 Qee5+
5b1K/1r1pqN2/NQn1b3/1qb1N3/n3kB2/1R1p4/NPBn1P1Q/2n1bb2 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 e4 f5 h5 fxe4 g5 g6 Rh4 Ra6 a4 b5 h6 bxa4 Rh5 gxh5 g6 h4 Ra3 Rc6 Rh3 Rf6 Rh2 Rf7 Rh1 Rg7 hxg7 Qc7 Rh3 Qb6 Rh1 Qd8 Kd2 e5 c4 Ke7 c5 Kf6 c6 Kf5 c7 h5 Rh2 e3+ Kd3 a3 Qc2 e4+ Kc4 h3 Kd5 h4 Qc6 a2 Qc4 a1N Qc2 a4 Qc5 a3 Qc6 e2 Qc3 e1B Bg2 a2 Nf3 e3 Nfd2 e2 Ne4 Ne7+ Kd6 Nec6+ Kd5 Na6 g8Q Nc5 g7 Qe7 Bf4 Na4 Nc5 Nb3 Qa5 a1N Nc3 Nd2 Qb6 Ba6 c8N Nab3 Na7 Nc1 Na2 Rh5 Rh1 h2 Qh8 h3 g8N Bd3 Rg1 h1Q Na6 h2 Bf3 Rh6 Rg3 Qf1 Bh5 Bb5 Rb3 h1B+ Bf3 Rf6 Qh6 Bg2 Qh2 Bh3 Bh5 Ne4 Be8 Bb4 Bf7 e1B Bg6+ Kg4 Bh7 Nd2 Bc2 Bd3 Nh6+ Kf3 Nf7 Bc5 Nc8 Qfe2 Ncd6 Bf1 Nc4 Re6 Ne3 Bf5 Ng4+ Re3 Qb8 Qb5 Qb6 d3 Nge5+ Ke2 Nh8 Re4 Nhf7 Rb4 Qh8 Nc4 Qh2 Be6+ Ke4 Bd5+ Kf5 Be6+ Kg6 Nd2 Ra3 Rb3 Kh7 Rb4 Kh8 Rb3 Nc4 Kf3 Nce5+ Ke4 Ng6 Rb4 Rb3 Qc4 Nge5 Qd5 Qb8 Rb7 Qa7 Qc4 Qb6 Qb5
2qr2b1/QPP2rK1/3N1r2/rB6/nbB1b2B/RpN3p1/3r1QB1/2k2r1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 f6 exf6 Kf2 f5 Ke1 f4 c4 Qg5 d4 Qf5 b5 Rh4 d5 Nc6 dxc6 Rh8 Ra2 Qe4 Rb2 Qe7 Rb4 cxb4 c5 Qd8 Kf2 Ke7 e4 Kf6 h4 Ke5 h5 g5 c7 f5 h6 a5 h7 d5 b6 f3 Kg3 d4 b7 a3 c6 f2 Qa4 a2 Bc4 f1B Bf7 a1R Bb2 b3 Rh5 f4+ Kh2 g3+ Kh1 f3 Bg6 Kf4 e5 Ke3 e6 d3 e7 d2 e8B d1R Ne2 g4 Be4 g2+ Kh2 g1R Qc4 a4 Nd4 a3 Qc2 f2 Bd7 a2 Bd3 Nf6 Bg6 Ne4 Nb5 Bd3 N1c3 f1B Bf7 Bg2 Nd6 Rgf1 Bc4 Rd2 Ra5 Nc5 Kg3 Bde4 Ra3 Rf6 Kh4 g3 Kg5 Raf1 Kh5 Rg8 h8Q a1R Be8 Be6 c8B Rad1 c7 Ra5 Beb5 Na4 Bd7 Qa8 Bc6 Bh1 Qg7 Qc8 Qg6 Bd3 Bg2 Be4 Ba1 Be7 Kh6 Rgf8 Kg7 Bg8 Qf7 Rd3 Qb1 Kd2 Qa2+ Kc1 Qf2 R1d2 Qa7 Re6 Qff2 Ref6 Nd1 Rd5 Be5 R5d3 Nc3 Rd4 Bf4 Rd3 Bg5 Rd5 Ne8 Rd8 Bh4 Bb4 Nd6 R8f7+
b1nkbQ1B/2p1rR1Q/3rbp2/n1b2P2/2B1r1BB/5r1n/nN3N1P/2K5 w - - 0 1 legal: proof: b4 e5 c4 h5 d4 exd4 g4 Qf6 a4 Ke7 g5 a6 b5 axb5 g6 bxc4 Ra3 Qe6 Rc3 f6 Rg3 c3 Rg4 Qf7 gxf7 hxg4 e4 g5 f4 b5 a5 d5 e5 b4 a6 c2 Kd2 g3 e6 g4 f5 d3 a7 g2 Ba3 c1N Qb3 d4 Qa4 g3 Qa5 Rh7 Qa4 Na2 Qa6 Kd8 Qc4 b3 Qa6 b2 Qc6 Bc5 f8B Re7 Qb5 Nc6 Bb4 Na5 Nh3 g1R Nf2 g2 Na3 b1B Bg7 Bc2 Qc4 Ba4 Bh8 Be8 Bc3 Rb8 a8B Rb4 Bf3 Bb7 Bd1 Ba8 Bg4 Ra4 Bfe2 Rf1 Rg1 Rb4 Qb5 Ra4 Nc4 Rb4 Nh3 Rf3 Nf2 Ra4 Kd1 d2 Nb2 Rc4 Kc2 d1R Qb3 Ra4 Bc4 Rb4 Re1 g1N Bd2 Nh3 Bg5 Ra4 Bh4 Rd2+ Kb1 Rb4 Qe3 d3 Qh6 Ra4 Qh7 Rb4 Bb3 Rbf4 Bc4 Re4 Na4 Rd1+ Kb2 d2 Kc2 Rd7 Nb2 Ne7 Re3 Rd6 Rd3 Nc8 e7+ Kd7 Rd4 Rde1 Rd5 d1B+ Kb1 Bf7 Rd3 Be6 Re3 Kc6 e8Q+ Kb7 Qf8 Ba4+ Nbd1 Re2 Nb2 Be8 Rd3 Ne7 Re3 Kc8 Rd3 Kd8 Rd5 Nc3+ Kc1 Nc8 Re5 Bd7 Re7 Na2+ Kb1 R2e3 Rf7 Re7 Kc2 Be6 Kb1 Re4 Kc2 Nc3 Kc1 Na2+
N5n1/1QN1q3/3k1N2/2pn4/PnKpRrR1/P3b1q1/q1p1rN1b/1Q2Bb2 w - - 0 1 legal: proof: d4 d5 c4 a5 e4 g5 h4 a4 e5 a3 bxa3 gxh4 e6 fxe6 a4 Ra6 Be2 Ra5 Bf3 dxc4 d5 Ra7 d6 Ra8 Bd5 exd5 Kd2 Kd7 Kc3 e5 f4 h5 g4 b5 f5 c5 g5 d4+ Kb2 c3+ Kb3 e4 a3 b4 f6 c2 g6 h3 f7 h2 g7 h4 Nd2 h3 Qe2 e3 Ne4 Rh4 Ng3 Ba6 Qf2 e2 Bb2 e1B Ne4 Qe7 Qf3 Bd2 Bc3 Bf1 Re1 Be3 Nf6+ Ke6 d7 Nc6 d8Q Rf4 Qb6 Kd6 Nd7 Rd8 Re2 Re8 Kc4 b3 Be1 b2 Qb5 b1Q Nb6 Nb4 Qb7 Nd5 Na8 Qa2+ Qb3 Nh6 g8N Bg7 f8N Be5 Nf6 Ng8 Nb6 Bf2 Nf3 Be3 Rg1 h1Q Nh2 Qg2 Na8 Qg3 Nhg4 h2 Ne6 h1N Nec7 Nf2 Rg2 Nd3 Nf2 Bc1 Re4 Be3 Rg1 N3b4+ Nd3 Rf2 Rg2 Re2 Nf2 Rf8 Rg1 Qg6 Rgg4 Bh2 Nh7 Rf4 Nf6 Qa1 Qb1 Qgg7 Rh4 Qg3 Rg4 Qa2+
1n6/3Rq3/6pR/nRP1k1bB/1nbr4/Pqp1q3/rpQb1QBR/2NK4 w - - 0 1 legal: proof: g4 e5 b4 c5 f4 cxb4 fxe5 b3 c4 d5 c5 a5 Na3 h5 Nc4 hxg4 Ba3 dxc4 Bb4 axb4 Qc2 b2 Qc1 Ne7 Qd1 Ng8 d4 Kd7 e4 Ke6 h4 b1Q h5 f5 h6 b5 h7 g3 Nh3 g2 Ng1 b3 Nf3 g1B Nd2 c3 Rh6+ g6 Bg2 b4 Nc4 f4 Nd2 b2 Nb3 f3 Nc1 b3 Qc2 f2+ Kd1 f1N a3 Nd2 Bf3 Qe7 Bh5 Nc4 Ra2 Na5 d5+ Kf7 e6+ Kf6 d6 Be3 d7 Ke5 d8Q Nf6 Qdd2 Ba6 Qf2 Bc4 Ra1 Bg7 Ra2 Rf8 h8R Nd5 R8h7 Bf6 Rg7 Nb4 Rf7 Qd8+ Rd7 Bfg5 e7 Bd2 e8B Qe7 Bf7 Ra6 Bd5 Rd6 Bb7 Rd4 Bc6 Ke6 e5 Qa1 Bg2 b1Q Rb7 Rf3 Rb5 Kd5 e6 Ke5 Qb2 Qe4 Qc2 Qe3 Rb2 Qb1 Ra2 Qf7 e7 Qb2 e8R+ Qe7 Rd8 Qb1 Ra1 Qa2 Rdh8 b2 Rd8 Qb3 Rd7 Rh3 Rb1 Rh1+ Qg1 Bd3 Na2 Bf1 Qf2 Qf4 Rc1 Be3+ Ke1 Bc4+ Qf1 Nd3+ Ke2 Bd2 Qf2 Rh3 Rh1 Rg3 Bh3 Rg1 Rh2 Ra1 Nc1 Nb4+ Kd1 Ra2 Bg2 Qe3
r6k/3Knq1b/5p1R/1r1RPB1R/2B5/1nqpQp1Q/bb4P1/2qRn2N w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 c5 d5 g5 Bb2 d6 hxg5 Bf5 Bd4 Bc8 Rh6 Bg7 Nd2 cxd4 c5 Ne7 c6 Bf8 Nb3 Ng8 Nc5 dxc5 Rh2 Bd6 Rh1 Bf8 Kf2 b5 Kf3 h5 Ke4 f3 Ke5 c4 e4 b3 a4 d3 a5 c3 d6 h4 g6 b2 a6 b1B g7 h3 c7 h2 a7 f6+ Kd5 Kf7 d7 b4 e5 b3 Ne2 c2 Ra3 c1Q Qe1 b2 Ra1 Qe7 d8R Na6 Ng3 Bf5 c8B Nc5 Kc6 Qc3 Rd5 Ba2 Be2 b1N Bd1 Bh7 Bf5 Na3 Bb3 Nc2 Qe3 Ne1 Bc4 Nb3 Rd1 Qe6+ Kc7 Ne7 g8R Bh6 Rg5 Rhb8 Rh5 Kg8 Qg1 Rb5 Qe3 Qf7 Kd7 Bg5 Rh6 Kh8 Rh5 Rc8 a8Q Rcb8 Qaa7 Ra8 Qad4 Bh6 Qg4 Bf4 Qh3 Bg5 Qe4 Bc1 Qe3 Ba3 Rf1 h1Q Rh6 Qh2 Rh1 Qg1 Rh2 Bb2 Nh1 Ra4 Qg4 Qf1 R2h5 Ra8 Qh3 Qg1 Qc5 Qe3 Qa7 Qed2 Qe3 Qdc1
4QrR1/1Q1r1N1q/b1P5/2p5/2pP1bpQ/QNR2n2/Knqb4/r1B2k1q w - - 0 1 legal: proof: f4 a5 g4 d5 c4 dxc4 g5 e5 g6 exf4 Bh3 a4 Bf1 hxg6 Nh3 g5 Ng1 g4 b4 c5 b5 Qd4 Bg2 Ra7 Be4 Qf6 Bc2 Ra8 Bb3 Qc6 bxc6 axb3 h4 Ke7 a4 Ke6 e4 Ke5 d3 Kd4 Kd2 f5 e5 g5 h5 b5 e6 b4 a5 g3 e7 g2 e8Q g4 a6 f3 h6 f2 h7 f1Q a7 f4 Rh3 f3 Na3 f2 Nb1 b2 Kc2 b3+ Kd2 Ne7 Qf3 Nf5 Rh2 Na6 Qe1 Bh6+ Kd1 Bd2 Rh4 Rd8 Ra3 Rd7 Rh1 Nb4 Rh5 Nh4 Ra1 Ba6 Rg5 Rf8 Nh3 g1B a8Q Qg2 Qee8 Bh2 Qb7 Bhf4 Rg8 Qh2 Qg3 Nf3 Ng5 Qh3 Nf7 f1Q+ Qee1 Qh6 Ra3 Qfh1 h8Q+ Qg7 Qhh4 Qh7 Nc3 b1Q Na2 b2 Rc3 Qa1 Qgh3 b1R Q3g3 Qb2 Qgh3 Kd5 d4 Nd3 Q3g3 Qb6 Kc2 Nb2+ Rd3 Qc7 Qe8 Qe5 Qgh3 Ke4 Rc3 Qe6 Nb4 Qe7 Nd3 Ke3 Q3g3 Ke2 Qgh3 Ra1 Q3g3 Qee4 Qgh3 Ra4 Kb1 Rb4 Ka2 Rb5 Nb4 Rb6 Nc2 Rb4 Q3g3 Kf1 Na1 Qc2 Nb3 Qg1 Rd3 Ng5 Na1 Qh1 Qge3 Nf3 Ra3 Rb5 Qc3 Nd3+ Qb2 Qa4 Qc3 Rb1 Qcb2 Qc2 Rc3 Qd1 Qa3 Nb2 Nb3 Qdc2 Qab4 Qh5 Qa5 Qhh7 Qa3 Ra1+
1nq3B1/nnB3pr/RpN3b1/6QB/P3pbBb/kq3K2/2Q2P2/qR2r3 w - - 0 1 illegal: No possible last move
4k3/bPrn4/bN1Q2n1/2brN2p/1RPrp1RN/q2QB1p1/q4N2/q2K4 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra2 fxe4 Ra4 Qb6 Ra1 Qd8 h4 g6 h5 gxh5 g4 Nh6 g5 Ng8 Be2 Bg7 Bf3 Bf8 Bg4 hxg4 f4 e5 b4 d5 c4 h5 f5 a5 b6 a4 f6 a3 b7 a2 g6 g3 b5 e3 g7 e2 b6 d3 Na3 d4 Be3 e4 Nf3 Nd7 b8N Bc5 Nb5 Rh7 Rh4 Ra5 Rb1 a1Q Ne5 Qa2 Rb4 Qe7 Rg4 Ba6 b7 Ba7 Nc3 Rd5 Qb1 Qd6 Nd1 Ne7 g8N Ng6 Qc2 Bc5 Kd2 e1B+ Kc1 Bf2 Ne7 Bg1 Nf2 d2+ Kd1 Ba7 Nf5 Qe7 Ke2 d1R Nh4 Rd2+ Ke1 d3 Qd1 Qc5 Qb3 Qca5 Qd1 Q5a3 Qf3 Rc2 Kd1 d2 Qe2 Rc3 Qf1 Rcd3 f7+ Ke7 Qe2 R3d4 Qf1 Rh8 Qe2 Rc8 Qd3 Rc7 f8Q+ Ke6 Qf4 Ke7 Qf6+ Ke8 Qd6 Bc5 Ke2 Ndf8 Nbd7 Ba7 Nb6 Nd7 Kf1 d1Q+ Kg2 Qdd2 Kf1 Qdb2 Ke1 Qba1+ Bc1 Qa4 Nd1 Be3 Nf2 Q4a3 Qc3 Rd3 Qd2 Bc5 Kd1 R3d4 Qd3 Q1b2 Be3 Qba1+
q1b3K1/P2N1rn1/Qq1RN1pn/RN1p1r2/P1pb4/1k1q3Q/1n6/1B3Nb1 w - - 0 1 legal: proof: c4 a5 f4 h5 d4 e5 b4 exf4 bxa5 c5 g4 hxg4 Ba3 cxd4 c5 b6 c6 Nh6 Be7 Ng8 Bc5 bxc5 Kf2 Ke7 a4 c4 h4 Bb7 e4 Kd6 c7 Kc5 c8Q+ Kb4 a6 d5 a7 f5 h5 f3 Kg3 f2 Kf4 g3 Ke5 f4 Ke6 d3 Kf7 f3 e5 d2 e6 g2 h6 Nd7 h7 Nc5 e7 Ne6 e8N Nf6 Nd6 Qb6 Rh6 Ng4 Ne2 g1B Nd4 Ba6 Rf6 g6 Bd3 Bg7 Qf1 d1N Qh3 f1Q Nd2 f2 Rb1+ Kc3 Bc2+ Qd3 Rb5 f1Q Ra5 Nb2 Bb1 Qff3 Nf1 Rf8+ Ke7 Qfe4 h8N Rb8 Nhf7 Rb7+ Qd7 Qee3 Ne5 Qc6 N6b5+ Kb4 Ndf3 Kb3 Ng5 Qc8 Qc7 Qa8 Qd7 Nc5 Re6 Rf5 Rd6 Ne6 Qc7 Bf6+ Kf7 Ng7 Qd7 Rc7 Ne6 Bc8 Kg8 Qc5 Qe8 Rf7 Qc6 Qd4 Qa6 Qb6 Nd7 Bc3 Qb7 Bcd4 Qa6 Nh6+
3QB2k/2Q4n/pnbpb2b/3p4/2rP1rrQ/1R1bP1qQ/2Nb2B1/K4N2 w - - 0 1 legal: proof: b4 e5 a4 g5 h4 gxh4 d3 b5 axb5 e4 Kd2 e3+ Kc3 exf2 Kb2 c6 Ra3 Bb7 Rc3 Ba6 Rc5 Bc8 Rd5 cxd5 Kc3 Qa5 Bd2 Qd8 Be1 fxe1B+ Kb3 Qb6 Kb2 Qd8 c4 h5 g4 h3 b6 h4 c5 h2 b5 a6 c6 h3 e3 Qg5 b7 Bd2 b6 Rh4 c7 Bh6 Ne2 Kf8 Nd4 Kg7 Nc2 Nf6 Ka1 Kh8 Qe1 Nh7 Bg2 Qf4 g5 Qg3 g6 Rc4 Rf1 h1R Rf5 h2 g7+ Kg8 Qf2 Rf1 Qf4 h1B Qh4 Rff4 Rg5 Nc6 b8Q Ne5 b7 Rg4 Qa7 Rcf4 b8Q Nc4 Qbb6 Rb8 Qf6 Rb4 Qc5 Nb6 Qd8+ Nf8 Qc3 Rbc4 Qa5 Kh7 g8B+ Kh8 Rg6 Nh7 d4 f5 Rc6 d6 Qc3 Be6 c8Q Rf2 Rc5 f4 Rb5 f3 Rb3 Rf1 Qcc7 f2 Qd3 Bc8 Qf5 Be6 Bh3 Bf3 Bg2 Be4 Qfh5 Bd3 Bf7+ Nf8 Be8 Nh7 Bf3 Re1 Bg2 f1B Qh3 Re2 Q5h4 Rf2 Kb2 Rff4 Ka1 Be1 Nd2 Bfe2 Nf1 Bd2 Rb4 Bd1 Ne1 Bb3 Nc2 Ba4 Rb3 Bc6
N1K3N1/b2Qrp1P/np6/R1Bb3r/1pqN1bn1/2Q1b3/PbrB4/1k3N2 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 dxc4 b4 axb4 Na3 g5 Rb1 Qd3 Bh3 Qd8 Rb3 h6 Rf3 h5 Rf4 gxf4 g5 Qd3 Be6 Qd8 Bg4 hxg4 Kf2 Kd7 d4 Kc6 e4 g3+ Kf3 c3 h4 c2 h5 g2 d5+ Kc5 d6 b6 g6 c6 e6 Qe8 g7 Nf6 g8N Ng4 e5 Bb7 Ke4 f3 e7 f2 d7 f1R d8B Re1+ Ne2 g1B e6 Na6 h6 Be3 Qd3 Rc8 Bd2 c1B Ng3 Bb2 Nb5 Bfg7 Kf5 Bge5 Rh5 Bb8 Nd4 Ba7 Nf1 Qd7 e8Q Qc7 Qa3 Kc4 e7 c5 Qd7 Bd5 e8N Bf4 Bh4 Re7 Bf2 Rh7 Qg3 Qc6 Bfe3 Kd3 Nc7 c4 Na8 c3 Rg5 c2 Qe1 Rg7 h7 c1B Bf2 Qc4 Qe5 Nh2 Kf6 Rc7 Rf5 Rg5 Qe1 Rh5 Rg5 Bb7 Ra5 Bd5 Bg1 Re2 Bge3 Ng4+ Ke7 Rb7 Kd8 Rf2 Nb5 Kc2 Bc5 Kb1 Nd4 Rg2 Kc8 Be3 Bc3 Rc2 Qg3 Bf4 Qf3 Bce3 Bd2 Bf2 Qc3 B2e3 Qd8 Re7 Qd6 Re6 Qd7 Re7
Nn6/rprP2k1/1Q1QQ1Bp/5P1r/B1K5/R3NQ2/3r1bpq/1bbnr3 w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 f5 e4 fxe4 g5 Nf6 Ra2 Ng8 h4 Nc6 g6 Bf5 Ra3 Bd7 Bb2 Na5 Rg3 Rh6 Rg4 hxg4 h5 Rh8 h6 Nc6 h7 Bc8 Bd4 Nb8 Be3 Kd7 Bf4 Ke8 Bh6 gxh6 Ke2 e5 d4 c5 f4 b3 g7 Kf7 d6 e3 Kd3 b2 d7 e2 d5 e1R d6 g3 a5 e4+ Kc4 g2 a6 e3 a7 e2 Na3 b1R Nf3 Rc1+ Nc2 Qc7 d8Q Nf6 g8B+ Kg7 Ng5 Nd5 Rh3 Nc6 Bf7 Bf5 Ra3 Nc3 Ne3 Bb1 f5 Be7 Qd7 Rhd8 Qe6 Qb8 Qb3 Nd1+ Qc3+ Bf6 Bh5 Rc2 Bg6 Bd4 d7 Rc8 Qd6 Rd2 Qb3 Qc7 Qb6 Qb8 Qe6 Qh2 Qd6 Rc7 Qe6 Rb8 a8Q Rg8 Qa4 Ra8 Qab3 Ra7 Q3b4 Be5 Qb3 Bg3 Qd3 Bf2 Qdd5 Nc3 Qf3 Rc1 Qd6 e1R Be2 Rh1 Bd1 Re1 Ba4 Nd1+ Kb5 c4 Ne6+ Kf6 Kc5 c3 Kb5 c2 Kc4 Rc8 Nc7+ Kg7 Na8 Rc7 Ra1 Nc3 Ra2 Rcd1 Qe6 c1B Ra3 Rh1 Qd6 Rde1 Qe6 Nd1 Qd6 Qe5 Qe6 Rh5 Qd6 Qe8 Qe6 Qg8 h8Q+ Kf8 Qhd4 Qg7 Bh7 Qg3 Qdd6+ Kg7 Bg6 Qe5 Bb3 Qh2 Ba4 Nb8+
1NknB1B1/1r2BQ1P/3P1np1/2B1r2q/p1r2K2/1bR3R1/rpb5/2n1bQ2 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 Bh3 hxg4 Bg2 Nd7 Bf1 Nb8 b4 a6 b5 axb5 a4 Nh6 a5 Ng8 Nc3 Bd7 Na4 bxa4 Bh3 Be6 Bf1 Bc8 Kf2 Kd7 e4 b5 d4 f5 h4 c5 d6 g3+ Kf3 b4 d5 b3 a6 g2 a7 g6 e5 b2 h5 c4 h6 c3 h7 c2 Qd4 Qa5 Bd3 Nf6 Nh3 g1R Bc4 Rg4 Ng1 Nc6 Be3 c1N Qd1 Nd8 Ne2 Rb8 a8Q Rb7 Rh3 Be7 Qb3 Re8 Rg3 Bf8 Nd4 Re6 Kf2 f3 Nc6 f4 Ra3 Be7 Bc5 Qb5 Kf1 f2 Kg2 f1B+ Kf3 Bd3 Qa6 Bc2 Qa2 Bf8 Rc3 Bh6 Qb3 Bg5 Qa2 Bh4 Bb3 Qa5 Qf1 Qb5 Rg1 Be1 Rg3 Ra7 Bc4 Ba6 Bb3 Kc8 Nb8 Rb7 Bc4 Re8 e6 Qa5 Bb3 Bc4 e7 Qb5 Kg2 f3+ Kh2 f2 d7+ Kc7 Kg2 Re4 Kf3 Re5 Kf4 Qa5 Qg1 f1R+ Qf2 Rg8 e8B Qb5 Qa1 Rg1 Ba2 B4b3 Qf3 Qe2 Qf1 Qh5 Qf2 Nf7 d8B+ Kc8 Bde7 Nd8 d6 Rg7 Bf8 Rgc7 Be7 Bd1 Qf3 Bbc2 Bg8 Bb3 Qd5 Bdc2 Qf7 Rc6 Bd4 Rc4 Qb1 Bd1 Qd3 Bdc2 Qf1 Na2 Qf8 Bf2 Qe2 Ra1 Qf7 Nc1 Qe1 Ra2 Qf1 Rcc5 Be3 Be1 Bg1 Rc4+ Bd4 Ne4 Bc5 Nf6+
1NKBQ2Q/1Br3pQ/5p2/1r1Q1b2/1n3r1R/3N1nP1/3bP1qp/1r1kqr2 w - - 0 1 legal: proof: b4 b5 d4 e5 f4 exf4 h4 c5 a4 cxd4 Ra3 a6 Rb3 a5 axb5 Qf6 b6 Qh6 b5 Qh5 Rb4 axb4 Nf3 Qh6 h5 Qxh5 Ng1 Qh2 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g3 Ke4 b7 h5 b6 d5+ Kb5 f3 c4 f6 c5 b3 c6 h4 c7 h3 Bh6 f2 Na3 b2 Qd2 b1R+ Qb2 d3 Bc1 d2 Qb4+ Ke3 Nf3 d4 Bg2 f1R Ne1 d3 Qb3 Nc6 b8Q Bb4 b7 Ne5 Kb6 Rh5 Qd5 Bf5 c8Q Ne7 Kc7 Nf3 Qcg8 Ra4 Qh7 Nc6 Qbh8 Rg5 Bb2 d1R b8Q Bd2 Bc3 Rf4 Ba5 Nb4 Nb5 Qg1 Na7 h2 Nc6 Kf2 Qbe8 Rh5 Nb8 Rg5 Bh3 Qg2 Bg4 Rdc1+ Kd8 Rc7 Bh3 Rd7+ Kc8 Bc3 Bg4 d2 Bd8 d1Q Bh5 Bd2 Bg6 Be6 Be4 Bf5 Nd3+ Ke3 Qa2 Qe1 Bb7+ Kd4 Qag8 Kc3 Qd5 Kc2 Rg1 Qh1 Rg2 Kd1 Rf2 Qg2 Qd6 Bg4 Qde6 Rb5 Qd5 Ng5 Rf3 Bf5 Re3 Nf3 Re5 Bg4 Rh5 Bf5 Rh4 Rc7+
7N/1Rqn3N/r1bnB2b/kPb1rbP1/n7/p1p2p1K/8/R1q1QNNQ w - - 0 1 legal: proof: e4 b5 a4 e5 h4 g5 b3 gxh4 Ba3 d6 Bc5 d5 c4 dxc4 f4 exf4 Be3 fxe3 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 d4 Kd7 g4 f5 b6 Kc6 e5 Kb5 d5 c5 e6 a5 b4 h5 d6 a4 b7 h3 e7 a3 e8Q+ Nd7 b8N h2 Qf3 e2 Kf2 e1N Kg3 h4+ Kh3 f4 Qfe3 Nf6 Qd4 Nd3 Qf7 c3 Na6 c2 Qf2 c1B Qf3 c4 Qe4 c3 Nd2 Ne8 Qe1 Qc7 Nb8 Rh5 Qh7 Re5 g5 Bh6 Bg2 N3c5 Nf1 Ra6 Bd5 Be3 Be6 Na4 Qh8 Kb6 b5 Bc5 Qh7 Ka5 Qhb1 Nf8 d7 Nd6 d8N Nd7 Qbc1 Kb4 Nf7 Ka5 Kg4 h3 Nh8 Bb7 Qcd1 Be4 Kh4 Ndb6 Nd7 Bf5 Nf6 Nd7 Nf3 Kb6 Nh7 Ka5 Rg1 h1Q Rg2 h2 Rd2 Qg2 Ng1 h1B Rd4 Qd2 Re4 Bg6 Kh3 Qc1 Rc4 Bb7 Qf3 Bc2 Qh1 f3 Rf4 Bd3 Rf8 Bd5 Rb8 Bc6 Rb7 Bf5+
1K1Rqn1R/4Bb1B/1r2B3/1P1b1Pqp/1p3rbB/5Q1N/2b1n1pk/q1Q5 w - - 0 1 illegal: No proof kernel
b1N4N/1N4b1/B1pQ2Nr/r3p3/1PnQq2R/q2p4/n1Pb2qK/2b1Bk2 w - - 0 1 legal: proof: e4 h5 g4 g5 b4 f6 d4 e6 e5 fxe5 f4 b5 a4 exd4 axb5 gxf4 g5 e5 Ra3 Ke7 Rg3 Ke8 Rg4 hxg4 Kf2 Kf7 Kg2 Kg6 h4 Kh5 g6 d5 b6 a5 g7 d3 b7 d2 Bd3 a4 Nh3 f3+ Kg1 g3 Rh2 Kg4 h5 g2 h6 Kg3 h7 d4 Ba3 c6 Qf1 d1Q Bb2 a3 Bc4 a2 Ba3 a1B Ba2 d3 Nc3 Qe1 Nf2 Ra5 Ncd1 Qe4 Nc3 Ne7 g8N Bb2 Bf7 Bc1 Bb2 Nd7 b8Q Nb6 Qd6 Bb7 Na4 Qa8 Nc5 Bg7 Bc4 Ned5 Ba6 Nc3 Rh4 Na2 Nh3 Nc4 Ne7 Qa7 Nf4 Ba8 Nfg6 Bd2 Qa1 Bc1 Rg4+ Kh3 Kf2 g1B+ Kf1 f2 Nc8 Bh2 Nb7 Bhf4 Bc3 Bfd2 Rf4 Re8 h8N Re6 Rh4+ Kg3 Nge7 Rh6 Neg6 Rc5 Bb5 Qa3 Ba6 Ra5 Qb2 Kf3 Qa1 Ke3 Qb2 Qf4 Kg2 Ke2 Kh1 Qe4+ Kh2 f1Q Qa1 Qff3 Qb2 Kf1 Qa1 Bg5 Be1 Bgd2 Qad4 Qg2#
1QR5/1b6/PQ1r1N1R/1qbn1pK1/Qq6/QPb2npB/p1B3r1/1q1b3k w - - 0 1 legal: proof: f4 a5 g4 e5 c4 exf4 g5 d5 cxd5 h6 Nf3 hxg5 Ng1 g4 b3 a4 Bb2 a3 Qc2 axb2 Qc1 Bf5 Qd1 Bc8 a4 b5 a5 Qd6 Nc3 Qd8 Na4 bxa4 Kf2 Ke7 d4 Kd6 e4 b1B h4 g5 h5 f5 h6 c5 h7 g3+ Kf3 a3 a6 a2 Qc1 g4+ Ke2 c4 Rh4 f3+ Ke3 c3 Kf4 f2 Rh1 g2 Ne2 g1Q Rh6+ Nf6 Ng3 c2 Nh5 g3 Bh3 f1Q+ Kg5 Qa5 Qa3+ Qb4 Qa4 Nd7 e5+ Kc7 e6 Kd6 e7 Bb7 e8B Ne5 Bc6 Qfb5 Qa3 Rd8 Qa4 Be7 Qa3 Rhe8 h8Q Rd7 Qa4 Qh1 Qf8 c1B+ Nf4 Ba3 Nh5 Bc2 Rc1 Bd1 Rc5 Bb2 Rc2 Kc7 d6+ Kb6 d5 Bc3 Rc1 Kc5 Rc2 Rdd8 d7 Kd4 d6 Ke3 Be4 Nd5+ Nf6 Qhf1 Rc1 Kf2 Bb1 Kg1 Bc2 Rc8 d8Q Rc6 d7 Kh1 Qb8 Bc5 d8Q Rd6 Qb6 Nf3+ Kg6 Re2 Qe7 Ne1 Kg5 Rg2 Qa3 Q5a5 Qd7 Qd3 Qda4 Qab5 Qc8 Qde4 Qb8 Nf3+ Kg6 Rh2 Bd3 Bb2 Qf8 Bcd4 Qb8 Rg2 Rc8 Bbc3 Bb1 Bc5 Bd3 Qe3 Bc2 Qc1 Kh5 Qb1 Kg6 Nd4 Kg5 Nf3+
2R1r1R1/5pN1/1Q5n/R3qBb1/1PN1p3/3R2b1/KQpqqnP1/1q1rk1r1 w - - 0 1 legal: proof: f4 e5 h4 b5 e4 g5 a4 gxh4 b3 bxa4 b4 d6 Bb2 Be6 Bd4 Bb3 cxb3 exf4 e5 Bg7 e6 Bf8 Be5 dxe5 d4 Ke7 Kd2 Kd6 Kc2 Kd5 Kb2 Ke4 e7 Ke3 e8Q Kf2 b5 c5 b6 h5 d5 a5 b4 c4 d6 f3 b7 a3+ Ka2 a4 d7 h3 Nc3 h4 Nd5 h2 Nc7 e4 Kb1 h3 Ne2 c3 Qb3 c2+ Ka2 Bh6 Qb2 Nc6 b8R Ne5 Ng3 Nd3 Qc1 Bg5 Rg1 h1Q Nd5 h2 Qe6 Rh4 Nb6 Nh6 Be2 Rf4 Nd5 Rf5 Nb6 Rd5 Re1 Qg1 Nh5 h1R Qg6 Qf1 Qg7 Rg1 Qd2 Rd4 Rad1 Rd5 Ka1 a2 Rb1 Rd6 Rec1 Qd1 Qe3+ Ke1 Qgd4 f2 Rb2 Qf6 d8R f1Q Ng7 Nf2 Rcb1 Qe5 Bg4+ Qe2 Rb3 Rd7 Bf5 Rd5 Kb2 a3+ Kc3 Rd6 Rg8 a1Q+ R1b2 a2 Nc4 Qac1 Rbd8 Ra7 Rc8 Re7 Ra3 Ree6 Kb3 Re8 Ra5 Rd7 Ka3 Rdd8 Qb3 Qdd3 Qa7 Qde3 Qc7 Rd1 Qb6 Q3d2 Qc3 a1B Qcd4 Qe7 Ka2 Qe6 Rb1 Bb2 Qf6 Be5 Rb3 Bg3 Qb2 Qe5 Rd3 Qb1+
2q2kn1/1q2pnp1/b7/1r6/p1N1N2R/B1P2PQK/1nN1nb2/1Q1Br1bN w - - 0 1 illegal: No proof kernel forced: wxDB
7q/k1P1qb1p/p5NP/4qn2/1Bn1Q3/R2NR2K/q1pNr2b/b4NrQ w - - 0 1 legal: proof: b4 d5 e4 dxe4 g4 f5 a4 fxg4 c3 c5 Bd3 cxb4 Bc2 b5 axb5 b3 Ra3 bxc2 Ra5 Kd7 Ra1 Ke8 Kf1 Kd7 Kg2 Kc7 f4 Kb6 h4 g5 d4 e5 f5 a6 c4 e3 c5+ Ka7 h5 g3 c6 e4 h6 e2 d5 e1Q d6 e3 d7 g4 c7 e2 f6 Ne7 f7 Nf5 Qd3 Bg7 f8N Rg8 Ng6 Nc6 Qe4 Na5 Ra3 Nc4 Nf3 Ba1 Nfd2 Qf8 d8Q Be6 Re3 Bf7 Qdd5 Re8 Ba3 Qg7 Rh2 Qh8 Nf1 Qb4 Rh3 e1Q Qc6 Qe7 Nbd2 Qb1 Bb4 Qa2 Kh1 g2+ Kh2 Rg7 Rhf3 g3+ Kh3 g1B Ra3 g2 Rfe3 Bf2 Qcd5 g1Q Qh1 Bg3 Qde4 Bd5 b6+ Ka8 b7+ Ka7 b8N Bf7 Nh2 Qe1 Nhf1 Bh2 Nd7 Qe5 Nc5 Qh4+ Kg2 Qhe7 Kh3 Rgg8 Nd3 Rg7 Nf8 Rg1 Ng6 Rg8 Nh4 R8g2 Ng6 Re2
rq1B2bq/n1pQ1r2/4PbP1/q5r1/QBp2n1k/5pN1/qRB1RK2/6B1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 e4 Ke7 d4 Kf6 g4 Kg5 d5 f5 e5 h5 d6 b3 b7 b2 b6 b1Q d7 h3 Bd3 h4 Bf1 h2 Bh3 Rh5 Ba3 f3 Bf1 f2+ Ke2 h3 Bd6 f4 Bb4 Kh4 g5 Bg7 g6 Bf6 Qa4 Ne7 Ra2 Rg5 Rb2 Nbc6 b8B Na7 b7 Nd5 Bg2 f1R Be4 Qe8 d8B Qa2 Bc2 Be6 Qd7 Bf7 e6 Bg8 Qa4 Rf2+ Ke1 Qb5 Ne2 Qa5 Ng3 Rf3 Rg1 h1Q Qd7 Qh2 Rg2 Qg1+ Ke2 Qgb6 Ke1 h2 Re2 Rd3 Qa4 f3 Kf1 Rd4 Kf2 h1Q Qd7 Nf4 Qa4 Nb5 Ba7 Qha1 b8Q Rd7+ Bc5 Qb7 Qc8 Qb8 Bb4 Rf7 Qd7 Qh1 Bb6 Qh2+ Ke1 Na7 Bg1 Kg4 Kf1 Qh8 Kf2 Kh4
2nR3Q/1p5b/nQ3B1n/1P1p1p1r/2qP1bR1/Q6q/q1N2kqr/2BK3Q w - - 0 1 legal: proof: f4 h5 g4 g5 b4 gxf4 c4 e5 g5 a5 Bh3 a4 Bg4 hxg4 Nc3 a3 Nd5 f3 Nf4 exf4 c5 Bxc5 Bxa3 Be7 Bc1 Bf8 h4 Ke7 a4 Ke6 d4 Kf5 e3 Ke4 a5 d5 g6 c5 g7 c4 h5 f2+ Ke2 f1Q+ Kd2 c3+ Kc2 g3 b5 f3 h6 g2 h7 f2 a6 Nh6 g8Q Bf5 a7 Bd6 Rh2 Bf4 Qg6 Na6 Rh4 Qa5 Nf3 g1Q Qb6 Qh3 Ne1 f1N Rg4 Ng3 Ra3 Rae8 a8Q Re5 Qf8 f6 Ra1 Bg6 Qa3 Rh5 Ra2 f5 Ra1 Rg8 h8B Bh7 Bf6 Rf8 Qe2 Qgf1 Kd1 Qfg2 Nc2 Rh8 Qe1 Kf3 Qh1 Kf2 e4 Qa4 e5 Ne4 e6 Nd6 e7 Nc8 e8Q Qc4 Qbe6 Qa2 Qd8 Re8 Qeb6 Re2 Ne3 Rb2 Qh8 c2+ Kd2 Qgf3 Qc3 Nb8 Bg5 Nd6 Qf8 Qb3 Ra8 Na6 Qh8 Qa2 Rd8 Nc8 Qa3 Qfg3 Bf6 Qf3 Rh4 Kg3 Ke1 Qe4 Bd2 c1Q+ Ke2 Qc7 Kd1 Qcc4 Bc1 Rh2 Nc2+ Kf2 Rg4 Qeg2
5r1b/QqQN1nnK/2P1prbp/B2nPbk1/N2R4/n4B2/2p4b/3N3N w - - 0 1 illegal: No possible last move, all moves rejected
3Q1Bn1/pk3nQQ/1r1Q2Rb/KP6/1Nn5/R1r2Ppb/r6p/Nrq4n w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra2 fxe4 Ra4 Qb6 Ra1 Qd8 h4 g6 h5 gxh5 g4 Nh6 g5 Ng8 Be2 Bg7 Bf3 Bf8 Bg4 hxg4 Kd2 e5 b4 h5 c4 d5 c5 Kd7 b6 Kc6 b5+ Kb7 g6 d3 Kc3 g3 Kb4 e3 f3 d2 g7 d4 Ra4 e2 Ba3 e1R Nh3 h4 Rg1 d3 Ka5 e4 Qc1 d1N Rg2 e3 Re2 d2 Rg4 Rh6 Qc4 Nd7 Qd3 Ne5 Nf4 h3 Rg6 h2 Nd5 Nf2 Nb4 d1N Ra2 e2 Nd2 Qc7 Nb3 Nb2 Na1 Nh1 Qc3 Nf7 c6+ Kb8 Qe5 Rb1 Qe7 Qf4 c7+ Kb7 Qd8 e1R Qd3 Ne7 g8Q Re2 Qg7 Bh3 Qf5 Rb8 Qc2 Ng8 c8Q+ Ka8 Qd7 Rc8 Qd8 Qc1 b7+ Kb8 Ra6 Rc6 Qch7 Rc3 Rh6 Rc6 Rg6 Rb6 Nd3 Rd2 Be7 Rf2 Ra3 Rc2 Nb4 Rc3 Qgd4 Bh6 Bf8 Rc2 Qdg7 Nc4+ Ka4 Nd2 Ka5 Ra2 Qg5 Rc3 Q5f6 Kc7 b8Q+ Kd7 Qa8 Kc7 Qad8+ Kb7 Qfd6 Nc4+
1q1n3Q/n2ppQ2/R4K1b/r1Br2r1/rP1Q1nk1/2q1p3/2NP3q/1NQ2B2 w - - 0 1 illegal: Other
1n3bb1/4B3/2Npk2r/2pNB1BB/1r4rP/b1qQ2Pr/p1b1bQ1R/6K1 w - - 0 1 legal: proof: f4 e5 d4 exd4 c4 g5 a4 b5 b4 bxa4 b5 gxf4 Ra3 h5 Rg3 Nc6 Rg4 Nce7 Rg3 Nd5 c5 Nb6 cxb6 h4 Rf3 h3 g3 Nh6 Rf2 Ng8 Rg2 hxg2 Kf2 Ke7 e4 c5 h4 f5 b7 a5 b8B d6 e5 d3 b6 d2 b7 f3 e6 f4 Ba3 Rh6 Qb3 d1B Bb2 a3 Rh3 a4 Bg7 a2 Ba6 a1B Qe3 a3 Rh2 a2 Qe5 Bc2 Bb5 Bb2 Nc3 Qa5 Qd5 Nf6 Be8 Nd7 Qd3 Ba3 Bc7 Rb8 Nge2 g1R Bh5 Rh1 Nd4 Qb4 Be5 Qb2 Rg2 Rh3 Rh2 Qb3 Kg1 f2+ Kh1 f1B Kg1 f3 Ba5 Ra8 b8B Be2 Bbc7 Nb8 Bb4 Ra6 Bca5 Rb6 Nd5+ Kd8 e7+ Kd7 Nc6 Ke6 Bd2 Rb4 Bg5 Qc3 Bd8 f2+ Kg2 f1R e8Q+ Be7 Qh8 Bf8 Bde7 Rff4 Kg1 Rg4 Qhh7 Bd7 Qd4 Be8 Qhd3 Bf7 Qf2 Bg8
QRQq4/2p4r/1K2prb1/1B5p/1r3N2/1B5R/n1nnPP2/rB1Bnk1n w - - 0 1 illegal: Other
qn2kn1r/1pn1N1n1/5Qb1/2bp3Q/NQpQBb1B/5nK1/bP5P/4R3 w - - 0 1 legal: proof: c4 c5 a4 e5 d4 h5 f4 exf4 g4 hxg4 Ra3 a6 Rb3 Ra7 Rb5 axb5 Bd2 Ra5 Be3 bxc4 Bc1 c3 Bh3 c4 Bf1 Rc5 dxc5 Rh4 Bg2 Rh5 Bf1 Rh8 Kf2 g5 e4 f5 a5 d5 a6 c2 a7 g3+ Kg2 g4 a8Q Ne7 c6 Ng6 c7 Bc5 e5 Nf8 Bd3 f3+ Kf1 f2 Kg2 f1N e6 f4 e7 Bf5 c8Q Bg6 Be3 c1B Nh3 f3+ Kg1 g2 Kf2 g1N Qc7 Ne2 Qf4 Nfg3 Be4 Nf5 Nc3 Ng7 Qf6 Nf4 Na4 N4e6 Re1 Nc7 Kg3 f2 Bg5 f1B Qa5 Bd3 Qb4 Bb1 Bh4 Ba2 Nf4 Qc8 Qdd4 Be3 Kg2 g3 Kf3 g2 Kg3 Bf7 Ng6 g1N Ne5 Bg6 Nc6 Kd7 Qb6 Nf3 Qb4 Qd8 e8Q+ Kc8 Qee5 Kd7 Ne7 Ke8 Qh5 Bf4+ Kf2 Nba6 Kg2 Qa8 Kh3 Nb8 Kg4 Bh6 Kg3 Bf4+
1b1b3q/N4N1r/q1PB1B2/pN1n1pb1/P4Q2/2r1Q2R/1k1p2N1/3qqK1b w - - 0 1 illegal: No possible last move, all moves rejected
b6B/knnB2Rp/1RKP1r2/pprP3p/1qQ1Q3/7n/3b4/rRR3qN w - - 0 1 illegal: No possible last move
3QR1q1/qnpQ3R/5b2/3bn1Pr/2N4r/2K1p1P1/pBb1pBk1/1B1n2B1 w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 h4 bxa4 Nc3 g6 Nd5 f5 d4 fxe4 Nb4 g5 Nd3 cxd3 hxg5 Bd7 Ne2 Bh3 Ng1 Bc8 Kd2 Kd7 b4 Kc6 f4 Kd5 f5 e5 f6 a5 f7 h5 g3 a3 b5 e3+ Kc3 Ke4 b6 e2 b7 d2 d5 a2 d6 h4 d7 h3 Qe1 a4 Bb2 h2 Kc2 a3 Qd1 Ra4 Qe1 Na6 b8B Rh5 Bc1 Ne7 Bh3 Ng6 Qd1 Bg7 f8B Bf6 Bb2 Nc5 Nf3 Nb7 Bc5 Qg8 d8Q Bf5 Bba7 Rb4 Rb1 a1Q Bf2 a2 Kc3 Rd4 Rg1 h1B Qa4 Rb4 Rbf1 Qd1 Qae8 Qa4 Qed7 Qa6 Bac5 Qa7 Rg2 Ra4 Rh2 Bg2 Bg1 Rd4 Rf2 Ke3 Bb6 Bc2 Bf5 e4 Ne5 Bh1 Nf7 Bf3 Nd6 Ne5 Rh4 Bh1 Rfh2+ Kf3 Nc4 Bg2 R2h3 Bh1 Rg4 Kg2 Bh7 Rd6 Bbf2 e3 Re4 Rd4 Rhh4 Nf3 Re8 Ne5 Rf4 Re4 Rf3 Reh4 Be4 Bd1 Bb1 Bc2 Rf4 Kf1 Rd4 Bd5 Rg4 Kg2 Rf4 Be7 Rf7 Bf6 Rh7 d1N+
3nR2R/P2q2p1/1r2P1p1/p4q2/kb1n3b/r1QBBQp1/Q2n3Q/3KNb2 w - - 0 1 illegal: No proof kernel
rn1n1QQq/b1RB3p/P4K2/1b6/1p2N1r1/r3bp1N/1P1B3p/1b2B1Bk w - - 0 1 legal: proof: f4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qb3 exf4 Qb4 axb4 Ra3 bxa3 Kf2 Kd7 Kf3 Kd6 Ke4 b5 d4 c5 g4 h3 a5 b4 a6 h2 g5 a2 g6 a1R g7 f3 Bd2 c4 Bh3 c3 Bd7 f2 Kf5 f1B e4 c2 Nc3 c1B Nh3 Ne7+ Kf6 Bb5 g8Q Ra3 Be1 Be3 e5+ Kc7 e6 Kd6 Rg1 Nec6+ e7 Bfh6 Qf8 Rg8 Rg7 Bf2 Bd2 Bhe3 Be1 Qe8 Bd2 Nd8 Ne4+ Kc7 d6+ Kb6 Bg4 Bf5 d7 Kc6 Be1 Kd5 Bd2 Kc4 d5 Kd3 d6 Bg6 Be6 Ke2 Bf5 Kf3 Be1 Ndc6 d8B Kg2 d7 Kh1 Bb6 Nd8 Bd4 Bg1 Bdc3 Ba7 Bcd2 Bge3 Bg4 Ne6 d8B Bf5 Nd6 Bb1 Bb6 Qc8 e8Q Nd8 Bd7 Qc3+ Ke7 f5 Ne4 f4 Qg6 Qc8 Kf6 f3 Re7 Rg7 Qg3 Bf4 Bg1 Bfe3 Qg6 Qc4 Qge8 Qg8 Qef7 Qh8 Q7g8 Bac5 Re6 Bb6 Rc6 Ba7 Rc7 Rg4+
qN2q3/3PN3/2B1npp1/k1Np1bq1/1N2Q1P1/2bp3r/2R2Kr1/nB3Q1q w - - 0 1 illegal: No proof kernel
n1Q3q1/Pb2b2p/2r2nNR/3p1Q2/1pp3rK/1q2P3/BQ1R2rN/Q2r3k w - - 0 1 legal: proof: f4 g5 h4 gxh4 b4 e5 b5 exf4 b6 axb6 d4 c5 dxc5 Ra6 c6 Ra3 c7 Ra8 c4 Bd6 c5 Qg5 c6 Qd8 Be3 Bf8 Bc5 bxc5 Kf2 Ke7 a4 Kf6 g4 Ke5 g5 Ke4 e3 d5 a5 b5 a6 f5 a7 h3 g6 b4 g7 h2 Qh5 c4 Bg2+ f3 Kg3 f4+ Kf2 Nf6 g8Q Nbd7 Ra2 Bb7 c8Q Be7 c7 Nb6 Qch3 Rc8 Qg7 Rg8 Rd2 Na8 Ne2 Qe8 Qh8 Rg4 Qf7 Qg8 Qfg7 Nd7 Qb2 Nf6 Re1 h1Q Qh5 Qh3 Rh1 Qh2 Qf7 Qh5 Rh4 Qe5 Rh6 Qc3 Qa1 Qb3 Bf1 Rd8 c8Q Rd6 Bh3 Rc6 Qhg7 Nd7 Qgb2 Nf6 Qff8 Rg7 Bd7 Rg4 Be8 Rd6 Ba4 Rc6 Kf1 f2 Qf7 Qa3 Bb3 Kf3 Ba2 Qb3 Qg6 Rg2 Qgf5 Rg4 Ng1+ Kg3 Nh3 Kh2 Ke2 Kh1 Kf3 f1R+ Rf2 Ra6 Nd2 Rc1 Nf1 Rc2 Rd2 Rc6 Kf2 f3 Nh2+ Rc1 Nf4 Rd1 Ng6 Rdg1 Bb1 R1g2+ Ke1 R2g3 Ba2 f2+ Ke2+ Rg1 Kf3 f1R+ Rf2 Rd1 Rd2 Rh4 Kf2 Rg2+ Kf3 Re2 Kg3 Rg4+ Kh3 Rg3+ Kh4 Reg2 Rc2 Rg5 Rd2 R5g4+
B2bq1qq/kN3pp1/2b3rr/rp2P1nQ/2p3KQ/2N1P1b1/1B1N1N2/2R5 w - - 0 1 legal: proof: d4 d5 a4 h5 g4 hxg4 c4 a5 b4 axb4 e3 Nd7 Ra2 Ndf6 f3 Ne4 fxe4 dxc4 d5 e6 Rd2 e5 Rd4 exd4 Kf2 Kd7 Kg3 b5 h4 c5 d6 Kc6 d7 Kb7 e5 b3 h5 d3 a5 b2 h6 c3 a6+ Ka7 h7 c4 Be2 d2 Rh2 c2 Rg2 Be7 Kf4 g3 Qe1 d1R Nh3 Nf6 Nc3 b1Q Ne4 Rd6 Rg1 g2 Bb2 c1Q Bf3 Bb7 Qh4 Qe8 d8N Bc6 Nd2 Ne4 Kg4 Ng5 Nb7 Bd8 Nf2 Rg6 Rd1 Qcc2 Rc1 g1B Qh5 Bh2 Bh1 Rf8 h8Q Bg3 Qh4 Rg8 Q8h5 Rh8 Bf3 Rhh6 Bd5 Kb6 a7 Qa2 Bg2 Qa3 Bd5 Qaf8 Bg2 Qg8 Bd5 Rc8 a8N+ Ka7 Nb6 Ra8 Na4 Qd3 Bg2 Qd6 Bh1 Qdf8 Nc3 Qh8 Be4 Qfg8 Rf1 Kb8 Rc1 Ra5 Nd6 Ka7 Bg2 Be4 Bh1 Bc2 Ba8 Be4 Nb7 Bc6
4r1rq/2Rp1B1r/2P1pB2/2Q2p1B/b4P1K/nnNQ2q1/1kr3p1/1BR1r3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 f5 h4 g5 e4 gxh4 e5 a5 Nd2 axb4 Ne4 Bg7 Ng3 Bf6 exf6 hxg3 c4 Kf7 f4 Ke6 a4 b5 f7 h5 f8Q h4 a5 h3 g5 b3 a6 h2 g6 b2 c5 Kd5 c6 b1R a7 e6 g7 d3 Ra3 Kc4 Be2 g2 Kf2 b4 Kg3 b3 Qd6 Kc3 Bd2+ Kb2 Bg4 Nh6 g8B Rc1 Qe1 Nf7 Qf2 Na6 Qe3 Rc2 Bh5 Nc5 Ra6 Ne5 Bd1 Nc4 Bf7 Re8 Bdh5 Na3 Ne2 Qf6 Rd1 h1R Nc3 Qh8 Rc1 Re1 Ra5 Ba6 Kh4 Bb5 Qe7 Rab8 a8B Ba4 Bb7 Rg8 Qd6 Rbe8 Ra7 Rh1+ Qh3 Re1 Be3 d2 Bd4 d1Q Ba6 Qf3 Bd3 Qe3 Bg7 Qf3 Rc7 Qf2+ Kg5 Qg3+ Qg4 Qe3 Nb5+ Rc3 Qf3 Ka2 Bhg6 Rc4 Bf6 Rh1 Rd1 b2 Qd4 Nb3 Qc5 Rc1 Nc3+ Ka1 Bc2 b1R Rf1 Rb2 Bb1 Rh7 Qe4 Rd1 Qd3 Rc2 Rg1 Kb2 Rf1 Rgf8 Bh5 Rg8+ Kh4 Rdc1 Rf3 Rg1 Rf1 Qf3 Rd1 Re1 Rc1 Qg3+
2nB1Q1N/2nR3r/2q2nR1/3q1p2/7P/pBBpr1K1/2Q1P1p1/bq2Bkq1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 Qd3 bxa4 Qd2 Ne7 Qd1 Ng8 g6 h5 Nd2 f6 Nc4 Ba6 Ne5 Ke7 Ng4 hxg4 Rb1 Bc4 Ra1 Bf7 gxf7 Rh3 Nf3 Rh6 Ng1 Rh8 Kf2 Ke6 h4 Ke5 b4 Ke4 c4 g5 c5 d5 c6 a5 b5 g3+ Kg2 f5 c7 g4 c8Q a3 b6 a2 b7 d3 Qcc2 a4 Qc6 d2 Qd6 Ke3 Qa6 d4 Bb2 a3 Rh3 f3+ Kh1 Kf2 Bc3 d3 Bb4 g2+ Kh2 Rh7 Rg3 Ne7 Rc1 a1Q Qc2 d1Q Qf6 Qb1 Bc3 Bg7 f8B Nd7 b8B Nc8 Bc7 Qb5 B7a5 Qc6 Be7 Qe1 Qf7 Nf6 Qf8 Qdd5 Bed8 Ra7 Rb1 Re7 Rb7 Qb1 Rd7 Re3 Bd4 Qb4 Nh3+ Ke1 Ba1 f2 Ng5 Bh8 Nf7 Bg7 Rf3 g3+ Kh3 g1Q Bg2 f1N Nh8 Nh5 Rf4 Nf6 Rg4 Kf2 Rg6 Qb1 Bf3 g2 B1c3 Re5 Qe7 Ne3 Qf8 Kf1 Be4 Qdc4 Bab4 Ned5 Kg3 Nc7 Bd5 Qcd4 Bb3 Qdd5 Be1 Re3+ Kf4 Ng8 Bbd2 Ba1 Bc3 Re8 Kg3 Nf6 Rd6 Re4 Rd7 Re3+
N2n2k1/BQr3P1/R2p3K/ppQr1P2/4b3/Q1p3Nr/Rn4pQ/qq3b2 w - - 0 1 illegal: No possible last move
R1K1nB2/1qb1p2n/1Qp1NNp1/2pB1P2/2rP3p/3qk1n1/Q3b1B1/B5b1 w - - 0 1 legal: proof: d4 a5 c4 b6 h4 d6 g4 g6 b4 Ra7 c5 dxc5 g5 b5 a4 bxa4 h5 Ra6 e4 Rd6 Ra3 Rd7 Rg3 Rd5 exd5 gxh5 g6 h4 g7 Nc6 Rg5 Nb8 Rg6 fxg6 Kd2 Kf7 Kd3 Kf6 Ke4 h5 f4 c6 f5 a3 d6 a2 d7 a1B b5 a4 b6 h3 b7 h2 Bd3 h4 Ba3 Kg5 Ke5 Qc7+ Ke6 Kf4 Bc4 Na6 b8B Ke3 Ba2 Nf6 g8B Bc3 Qb3 Qg3 Nh3 Nh7 Bb2 a3 Ng5 Bh6 Be5 Qf3 Rd1 h1N Ba1 Ng3 Nd2 Bb7 d8Q Nc7+ Kd7 Ba6 Nde4 Be2 Qf7 Ba5 Bd5 a2 Nf6 Ne8 Ne6 Bc7 Kc8 Qe4 Rb1 Qd3 Rb8 Bg5 Ra8 Bh6 Bb2 a1Q Bg2 Qa7 Ba1 Kd2 Nh5 Be3 Bg7 Bg1 Bf8 Ke3 Nf6 Qe4 Ng5 Nd6+ Kd7 Qd3 Bg7 Ba5+ Qc7 Bb6 Qa2 Ba5 Bc4 Rb8 Bf8 Ne8 Bcd5 Rb4 Ne6 Rc4 Kc8 Bb6 Qb7 Bc7 Qb6 Qb7+
n1N1R1rb/p1bb4/pp3q1k/1N1N3r/1P2Kp1p/4Pp1N/r1Q4R/1B2Q3 w - - 0 1 illegal: No proof kernel
8/7K/1rb1PnBN/Bb1r1p1n/N1Bq1P2/k1b1B2Q/q1r1bbQ1/n2Rb3 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 g5 c5 g6 c4 Ra3 hxg6 Kd2 g5 Ke1 g4 Rd3 cxd3 Kd2 Ke7 f4 Kd6 h4 Kc5 e4 f5 c4 d5 h5 g5 a5 b5 a6 g3 e5 b3 h6 Kb4 a7 g4 e6 g2 c5 g3 h7 b2 c6 Ba6 c7 Bg7 c8Q Nd7 Qdc2 Rb8 a8B Ndf6 Qd7 Nh5 Qcc8 Rb6 Rh4 Ngf6 Nh3 g1B Qf7 g2 Nc3 b1Q Nd1 Qa2+ Qc2 Bf2 Bc6 g1B Bb2 Be1+ Kc1 Bgf2 Nc3 d2+ Kd1 Rg8 Ke2 d1R Kf3 d3 h8B d2 Ng5 d4 Rh1 d3 Qe8 Qd4 Na4 Rc1 Qa8 d1N Bc3+ Ka3 Be8 b4 Nf7 b3 Ba5 d2 Nh6 b2 Bc4 b1B Bg6 Rd8 Qd3+ Rc3 Kg2 Bb5 Kh3 Ne3 Qg2 Nc2 Qdg3 d1B Kh4 Na1 Kg5 Bd3 Q3h3 B1e2 Rg1 Rc2 Rf1 Bc3 Rd1 Bf8 Bg7 Bfb4 Bf8 Be4 Bc5 Qd2 Be3 Bec6 Bf7 Rd6 Kg6 Rd5 Be8 Qd4 Bf7 Ne4 Kh7 Bce1 Be8 Bbc3 Bg6 Nef6+
2R4r/N1bN4/Q1qrn1qk/6qN/n3Qp2/1KnBq1q1/P1R1bP2/q2Nb3 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Be3 d3 Bd4 exd4 Bh3 hxg6 Kf1 g5 Kg2 g4 Kg3 d2 Bf1 Qf6 Kg2 Qd8 h4 f5 e4 Kf7 c4 Kg6 e5 d5 c5 b5 h5+ Kh6 e6 g5 e7 g3 Kf3 g2 Ke2 d3+ Ke3 d4+ Kf3 g4+ Kf4 b3 Ke5 g3 e8Q b4 c6 b2 c7 b3 Rh2 Ra6 Qd7 Nf6 Qc1 Nd5 Qc2 d1N Nc3 b1Q Nf3 g1Q Na4 d2 Qc4 d3 Kd4 b2 Qb3 g2 Kc4 Qc2+ Nc3 b1Q Ne5 Nf4 Qb7 Qg5 Qbd5 Rd6 Qe8 Na6 Qd8 Ne6 Be2 Nac5 Nd7 Na4 Qe4 Qb6 Rh1 Qbe3 Rc1 Ba6+ Kb4 Qh2 c8N g1B Qa5 Qhg3 Na7 Bh2 Qb6 Bc4 Qa6 Qb1+ Ka3 Qb5 Re1 Qc6 Rc2 Bb5 Kb3 Qg6 Nb1 Ndc3 Rec1 d1Q Bf1 d2 Bd3 Ne2 Nc3 Qdg1 Nd1 Nec3 Bc4 Be7 Bd3 Bd8 Rb2 Ba5 Rbc2 Kg5 h6 Bb4 h7 Kh6 Nf6 Qg3g5 Nh5 Be5 Qg4 Qgg3 Qe4 f4 Bf1 Rc8 h8N Be2 Nf7+ Kh7 Nh6 Rh8 Ng4 Ba5 Ngf6+ Kh6 Nd7 Bc7 Bh3 Bd4 Bf5 Bdb6 Qe5 Ba5 Bd3 Bb4 Nb2 d1Q Qe4 Qf1 Nd1 Nb1 Rc5 Be1 R1c2 Nbc3 Rf5 Qc1 Rf8 Qa1 Rc8 Qfh3 Nb2 Qe3 Nd1 Qhg3
Qn4b1/K2r3R/2PB1rnr/n1bNr3/n1NkB1pN/4q1P1/7q/2Qb2rN w - - 0 1 illegal: No possible last move
5RQb/r1P1Kqq1/b5N1/B1Q2qrn/N1QpbbQ1/n2Pq2R/nb3k2/8 w - - 0 1 illegal: No possible last move, all moves rejected
K5Rn/RQqnQN2/1Pr3Qr/q3N1Q1/rpb1Bq2/bP1b4/1k5b/4r2b w - - 0 1 illegal: Other
2Bkqr1R/QRn2prn/5r1n/4bPQ1/P2N1n2/qb2Q1Q1/3KbB2/1r1r4 w - - 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 e5 Na3 d3 Nb5 gxh6 Bg5 h5 Bc1 h4 Nd4 exd4 e4 b5 g4 d5 f4 h5 c4 d2+ Ke2 h3 a4 h4 g5 b3 f5 d3+ Ke3 h2 g6 b4 e5 d4+ Kf4 b2 e6 b1R g7 h3 c5 b3 e7 b2 c6 Nh6 g8Q Ra6 c7 Nd7 Qg3 Rf6 Qe2 d1R Qgg4 d2 Qg3 d3 Ke3 Ba6 c8Q Bg7 Qg5 Nf8 Qf4 Nh7 Qfb8 Rf8 Qcc7 Bc4 Ra3 Bb3 Bg2 Bh8 Nf3 Rg1 Qf2 d1R Ne1 d2 Be4 Rg7 Qc2 Kd7 Qbg3 Qe8 Qd3+ Kc8 Qg5 Kc7 Rf1 h1N Nc2 h2 Nd4 Ng3 Rh1 Ne2 Bb7 Nf4 Qa6 Kd7 Qa7 Kc7 Qfg3 Kd7 Re1 h1Q Re2 Qc6 Rh2 Qc5 Ra1 Qa3 Rh3 Qa8 e8Q+ Kc7 Qe6 Qe8 Bc8+ Kd8 Qe5 Rg1 Qe6 d1B Kd2 Be2 Qee3 Rd1+ Kc3 Qe5 Bd2 Qe4 Be1 Qe8 Bf2 Rbc1+ Nc2 Rg6 Qef3 Ng8 Q5h4 Ng5 Qh7 Rfd6+ Bd4 Be5 Rh1 Rg7 Ra2 Rf6 Qg6 Ra1 Rh8 Nh6 Qd3 Nh7 Q6g5 Rac1 Qb5 Be6+ Qb3 Rg1 Kd2 b1N+ Ke3 Bd5 Rb2 Nc3 Kd2 Nb5 Bf2 Nc7 Nd4 Rb1 Qbe3 Rgf1 Rb4 Bb3 Rb7 Rfd1+
1b1qrn1N/2pb2qR/2QK1BBN/1QPn4/r2n1N1N/P2b4/2rk2n1/5b1b w - - 0 1 illegal: Other
2b3q1/2qRN2n/3n2Q1/r1bp1q1q/1b1Q2bQ/1n4qP/3PNrQ1/1k2KB1R w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 a4 Ke7 e4 Ke6 c4 Ke5 h3 Kd4 e5 g5 a5 f5 e6 d5 c5 b5 c6 b3 c7 b4 e7 f3 e8Q f2+ Ke2 f4 a6 g3 a7 g4 Qg6 g2 Ra2 g3 Qe8 Nc6 Ra6 Nf6 Qf7 Nh7 Ra2 Na5 Qc2 f3+ Kd1 Qd6 Bb5 f1B Qff5 f2 Nc3 b1Q+ Qc1 b2 Ra1 b3 Ra3 Qd3 Ba4 b1Q Ra2 b2 Ra1 Nb3 Rh2 Qf4 Qh5 Bb4 Bb5 Rf8 Ra6 Qdf5 Bd7 Kd3 Qh4 Qh5+ Nf3 g1Q Rh6 g2 Rd6 Qg3 Rh1 Q1h2 Ba4 g1B Ne2 Qa1 Rd7 b1N Bc6 Na3 Nfd4 Nc4 Nf5 Nd6 Ne7 Qag7 Qb2 Qg8 Qg7 Rf5 Qg6 Bg2 Ba4 Bf3 Bc6 Bg4 Ba4 Rb8 a8Q Rb5 Qa7 Ra5 Qc5 Ke4 Bb5 f1Q+ Kc2 Qff4 Kd1 Qff3 Qf2 Qd3 Qf1 Bgc5 Qg2+ Qdf3 Ba4 Kd3 Bb5+ Nc4 Ba6 Qe4 Bb5 Rf2 Ke1 Kc2 Ba6 Qef5 Bb5 Ba6 c8Q Kb1 Qcc6 Qc7 Qcf6 Nd6 Qd4 Qf4 Ng1 Bc8 Bf1 Qh2 Ne2 Qg3
r1qb1rK1/2Q2pBr/3b1r1R/br1R1Pbb/N5k1/BB1Q4/B2P2bn/1n6 w - - 0 1 illegal: No possible last move, all moves rejected
R1n1n3/b3qbq1/4r3/QNr1rbp1/2B2QPn/6q1/nB3P1q/1B1KB1kN w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 h4 b6 axb6 Ra3 b5 Rb3 b4 Rg3 hxg3 h4 Kf7 c4 Kf6 h5 Ke5 a5 g5 a6 b5 h6 d5 a7 d3 h7 d4 c5 b3 c6 b2 c7 g2 Rh6 e3 Rh5 Kf4 Rh2 e5 Qe2 b4 Qc2 d2+ Ke2 d1N Rh3 b3 Qc6 d3+ Ke1 d2+ Ke2 e4 Qb5 Bc5 Qa5 Nd7 Rh2 Ngf6 Rh1 Ne8 Na3 b1B Rh6 b2 Qb5 Nb6 Qd7 Qe7 Nc4 Ba2 Qe6 b1Q Rh5 Qb2 Qd7 Qbg7 Na5 Bf7 Qc6 Bf5 Qb5 Nc8 Nf3 g1Q Nc6 Qh2 Ng1 Rb8 a8B Rb6 Nd4 Re6 Qa5 Ba7 Bd5 Rg8 h8B Qg3 Bg2 Nc3+ Kf1 d1N Ke1 Na2 Bb2 e2 Nb5 Ne3 Bc4 Rf8 Kd2 e1R Bgf1 Qd6+ Bfd3 Ng2 Ne2+ Kf3 Kc2 Qh2 Ng3 e3 Nh1 e2 Kd2 Qa3 Bb1 Nh4 Rh6 Re5 Ra6 Kg2 Bc3 Kg1 Bb2 Ne7 c8Q Qag3 Qb8 Nc8 Qd6 Rc1 Qd4 Rc3 Qf4 Rce3 Ke1 R3e4 Kd2 e1Q+ Kc2 Qb4 Kd1 Qe7 Bc3 Rc5 Bb4 Re6 Be1 Qh6 Bb2 Qg7 Rb6 Rh8 Rb8 Rhh6 Ra8 Ree5 Bb3 Rhc6 Bc4 Rce6
3qQ1r1/3n2pk/2PR4/1Br1QnPn/N1q1N1qb/3N4/1Kbb1rN1/R2qb3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 b4 fxe4 d5 axb4 d6 h4 Bd2 cxd6 Bc1 d5 Bf4 d4 Bg3 hxg3 Kd2 Kf7 Kc1 Kg6 a4 e5 c4 b5 h4 d5 f4 b3 f5+ Kh7 c5 e3 f6 e4 c6 e2 a5 e1B f7 e3 a6 e2 g5 g2 h5 b2+ Kc2 d3+ Kb3 b4 a7 d2 h6 d4 Nf3 g1Q Bg2 d3 Ra5 Bh4 Rh2 e1B Rh3 Nd7 Ra6 Ngf6 Qe2 d1N Bf1 d2 Qe5 Ne3 Nc3 Nf5 Ra1 Qg4 Bb5 Rg8 Ne4 b1R+ Kc2 Bc5 f8Q Be3 Qfe8 Rc1+ Kb2 d1Q Rh1 Rb8 a8N b3 Nb6 Rc5 Na4 Nh5 Rh2 Qd5 Rd2 Qc4 Rd3 B3d2 Rd6 Bef2 Ne1 Rf8 Ka3 b2 Ng2 b1Q Qd4 Qbf1 Qde5 Rf6 Kb2 Bfe1 Q8e6 Kg6 h7 Qfd3 h8N+ Kh7 Ng6 Qdf3 Qe8 Qd1 N6f4 Rf8 Ka3 Rg8 Ba6 Rb2 Bb5 Ba6 Ne2 Qe6 Nc1 Be3 Bd3 Rf2 Bc4 B3d2 Kb2 Qd5 Be2 Bd3 Bf1 Bc2 Bb5 Qf7 Nd3 Qc4
1RB1nqnr/nB4k1/rQpP3q/1Q4b1/rr2N1b1/q7/2Pbq1K1/3BB2N w - - 0 1 legal: proof: b4 d5 a4 a5 e4 dxe4 g4 axb4 f4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 Kf2 f5 d4 Kf7 h4 e5 d5 b5 d6 b3 h5 e3+ Kg2 b4 h6 e2 a5 e1Q h7 c6 a6 e4 a7 b2 g6+ Kg7 Rh2 b3 Rh6 e3 Rh1 e2 Kh2 g3+ Kg2 f3+ Kh3 g2 Na3 b1N Qd5 b2 Be3 f4+ Kh2 f2 Qd2 f3 Bc5 Qa5 Qd5 Be7 Bb6 Qed2 Nh3 e1B Qb5 g1R Be2 f1Q Bf2 Na6 Bd1 Nc7 Nc4 Qh6 Nd2 Qa3 Ne4 Bd2 Be1 Nc3 Qb6 Bh4 Nhf2 Rg4 Rg1 b1R Nh1 f2 Rg3 Ne2 Rb3 Nd4 Rb5 Rf4 Rb4 Qb5 Kg2 Bg5 Rb3 Ra1 Rb2 Rb8 a8B Qe2 Bb7 Bg4 Rb3 Ndb5 Rb4 Kf8 g7+ Kf7 Rb2 Na7 Rb3 Ne8 Qb5 Ne7 g8B+ Kg7 Be6 Ng8 Bec8 f1Q+ Kg3 Ra8 Qf5 Rb1 Nf6 Kf7 Ba6 Ra4 Qd3 Kf8 Rb8 Rbb4 Ne4 Kf7 Bab7 Kg6 Ba6 Qff8 Bab7 Kf7 Nef2 Kf6 Kg2 Kf7 Qe3 Nb5 Qc5 R8a6 Qb6 Na7 Qb5 Ne7 Qb6 Rg8 h8Q Rb3 Qc3 Rh8 Qcc5 Rbb4 Qbb5 Ng8 Qcb6 Qc4 Ne4 Kg7 Kg1 Qcd3 Kg2 Qe2+
1rrr1N2/1r3qk1/1N6/rRn1pB2/2q1Qb2/B1qPPqnK/1BbQ2r1/4B3 w - - 0 1 legal: proof: c4 a5 g4 h5 a4 hxg4 b4 axb4 c5 f5 c6 f4 Ra2 dxc6 Ra3 c5 Rf3 c4 Rg3 fxg3 f4 Kf7 h4 b5 h5 g5 e3 e5 a5 c5 f5 c3 h6 c4 f6 b3 h7 b4 a6 c2 a7 b2 Nf3 g2 Kf2 g1R Na3 b1R Nh2 b3 Bd3 c3 Bb2 c1R Ba1 b2 Qe1 g3+ Kf3 g2 Kg3 g4 Bc4+ Qd5 Qf1 c2 Bd3 Na6 Qf5 Bh6 Qe4 Ne7 Nf1 Nf5+ Kh2 g3+ Kh3 Nc5 Nc4 Bf4 Nh2 Rd8 Nb6 Qc4 h8B Bd7 Ng4 Ba4 Rh2 Rac8 a8Q Rcd1 Qa5 c1Q Qc3 Bc2 Qa5 Rde1 Bg7 Qd1 Rh1 Qf3 Bf8 Kg6 f7 Qc3 Bd6 Kg7 Nf6 Re2 Nfd5 Rge1 Nc7 g1Q Be7 Qgf2 Bh4 g2+ Bg3 g1Q f8B+ Kf7 Rh2 Qgf1+ Rg2 Rec1 Ne6 Ra8 Qa2 Ra5 Be7 Kg6 Nf8+ Kg7 Bd6 Qh5+ Bh4+ Ng3 Qad5 Qf7 Bde7 Ne6 Ba3 Nc5 Qdd4 Qf3 Qdd5 Rce1 Qd7 Rbc1 Qd6 b1R B1b2 Qfc4 Na8 Qf7 Qdd5 Qb3 Bc3 Bd1 Bb5 Na4 Bc6 Qb2 Bhe7 Rb5 Beb4 Ra5 Bd7 Qa1 Bd4 Rcc8 Bf5 Nc5 Bbc3 Rbb8 d3 Qg1 Qa2 Bb3 Rf2 Rb1 Rf1 Rbb2 Rb1 Qc1 Be1 Qcc4 Bdc3 Ba4 Bd4 R2b5 Qd2 R5b7 Rb5 Bc2 Nb6 Rg2 Bc3 Qb2 Bd4 Qbb4 Bdb2 Qbc3
r1Q3rn/1bbbp3/2b2n2/1K1n2P1/2Q3NN/R2NqNkb/Bb2Pq2/4B1n1 w - - 0 1 illegal: No possible last move
1Qn1B3/1bp3r1/1q1q3n/Bq2Rqb1/R1Pr1k2/2brr3/R1KP4/2QN2bR w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nc3 fxg4 Nce2 axb6 Rb1 b5 Ng3 hxg3 Ra1 b4 a4 Kd7 f4 Ke6 c4 Kf5 h4 e5 a5 g5 a6 b5 h5 g2 h6 b3 a7 b2 h7 b1Q Qc2 g3 Kd1 g4 Ra3 b4 Ne2 g1Q Rd3 e3 Rd7+ e4 Rd6 b3 Rh3 b2 Rd3 g2 Rc3 g3 Qd3 Nd7 Qd4 Nh6 Rh1 Bg7 Rb3 Bb7 Qb6 Bc3 Qc6 Nb6 Ra3 Qd6 Ra4 Rad8 a8R Nc8 R8a5+ Kg4 f5 Rd7 f6 Rhd8 h8Q Qf2 f7 g1R f8R g2 Qd5 Qf5 Re8 Kf3 Nd4+ Kf4 Nc2 Rg7 Re5 e2+ Ke1 Rg3 Ne3 Rd7 Nd1 Rd3 Ra2 Rg7 R5a4 Rg4 Kf2 e1B+ Ke2 e3 Qc5 Bg3 Qa3 Bh4 Qe8 Bg5 Qh8 Ne7 Qb8 Nc8 Ke1 Qfd7 Ke2 Qb5 Ke1 Qc2 Ke2 b1Q Bb2 Qbb6 Ba1 Q1b4 Qc1 Q4b5 Ke1 e2 Bb2 Bd4 Bc3 Qcb1 Ba5 Bc3 Re8 Qf5 Re5 Q6b5 Kf2 e1R Be2 Rh4 Bh5 Ree3 Bf7 Qbb6 Be8 Q1b5 Rd5 Rd4 Re5 Red3 Ke2 Rg4 Rh5 Rf1 Rh1 g1B Nb2 Rff3 Kd1 Rfe3 Kc2 Bf6 Nd1 Rg7 Bf7 Bh4 Be8 Bg5
5N2/q1Qp1BKb/1qr2Q1p/knb4P/r6Q/Bn1r3P/2nb1R1R/rQ2r3 w - - 0 1 illegal: Other
b2N2q1/1pr3q1/1B2Pnn1/5K2/kb1B4/q2p1Nr1/1bRPn2Q/b1bQ2BB w - - 0 1 illegal: Other
3k1r1K/1r1r2rN/2Pq3b/p1pb2nN/1rPq1Q2/2N2n1N/3R2Qq/b2B3R w - - 0 1 illegal: Other
2b5/2Pr2nR/3QNpp1/5rqb/1b1rB3/qNBb1N2/kn1bQKPn/4N3 w - - 0 1 illegal: No proof kernel
k4B1n/q4qp1/q5qp/b2rRb2/1Qr1BN2/n4Q1P/1nBb1qP1/1BK3R1 w - - 1 2 legal: proof: d4 c5 Kd2 cxd4 b4 f5 e4 fxe4 b5 d3 Kc3 e3 Kd4 a6 Nc3 axb5 Nce2 dxe2 Kd3 b4 f4 e1B a4 d5 c4 Kd7 Kc2 Kc7 a5 e5 c5 b5 f5 Kb7 f6 e2 f7 e4 h3 e3 Rb1 h6 Qd2 b3+ Kb2 b4 Qd4 Bd2 Qd3 e1Q Qf5 e2 Qe4 Qf6+ Qe5 d4 Qe3 d3+ Qe5 Na6 Qc3 Nc7 Nf3 Qf2 Ne5 e1Q Be2 Qa6 Nf3 Nb5 Ng1 Qef1 Qd4 Ne7 Qd6 Na3 Bd1 Ng6 Bc2 Bf5 Ne2 Rd8 c6+ Ka8 c7 Rd7 Qf4 Rd5 c8B Qfa7 Qc4 Qff2 Re1 Bd6 f8Q Bc7 Qf6 Bb6 Bd7 Rc8 Nf4 Nh8 Re5 Rc6 Qc3 Rc4 Be8 Bd8 Bg6 Qf7 Qd6 Qaa7 a6 Ba5 Ka1 b2+ Ka2 Qad7 a7 Qb5 Kb3 Qa6 Ra1 b1Q+ Bb2 Qh1 Rg1 Qh2 Bc1 Qhg3 Kb2 b3 Qdb4 Qge3 Bh7 Be1 Bg6 d2 Bh7 Qc5 Qf3 d1N+ Ka1 Nb5 Kb1 Bd2 Ba3 b2 Bg6 Kb7 a8B+ Kb8 Qbc3 Qca7 Bf8 Na3+ Ka2 Rd8 Bae4 Rd5 Kb3 b1Q+ Qb2 Qa1 Qbc3 Ka8 Qb4 Q1d4 Bh7 Nb2 Ka2 Nb5 Kb1 Qdb6 Bg6 Be1 Bh7 Na3+ Kc1 Qbg6 Bd3 Qgf6 Bg6 Bc8 Bge4 Bc3 Bb3 Bf5 Bb1 Q6g6 B3c2 Bd2+
1NRbK3/1pq1n1p1/1P4b1/1Q1Q3R/b1b1PkB1/8/nQ1bQ1br/2B1rrb1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 b5 dxc4 Nc3 e5 Nd5 exf4 Nb4 axb4 Kf2 Ke7 d4 Kd6 h4 f5 a4 c5 b6 f3 Ke3 f2 Kf4 b3 h5 b2 a5 b1B d5 c3 e3 c4 h6 g3 a6 g2 h7 c2 a7 c3 Bd3 f1B Ra5 Qc7 Kg5 Ke5 Kg6 f4 Rh4 f3 Rc4 f2 Qe2 Be7 Kf7 Nc6 Ke8 Bd8 Bf5 Nb4 Bg4 Na2 e4 Bf5 Rcc5 Rb8 Qb5 Bc4 a8Q f1B Ne2 g1B Nd4 Bg2 Qaa6 Rc8 Qb2 Ra8 Qab5 Rb8 Bg5 c1B Rc6 c2 d6+ Bd5 d7 Bd2 Qe2 c1R Rc3 Bc2 Nc6+ Ke6 Be3 Bc4 Rb5 Rc8 Nb8 Ba4 Rc5 Rf1 Ra5 Be1 Bc1 Bd2 Rc5 Kf6 Rh3+ Kg5 Rh5+ Kf4 Qb5 Bg5+ d8Q Bg6+ Kf8 Be8 Qd5 Bd8 Qb2 Bg6 Rc6 Bf5 Ke8 Ne7+ Kf7 Re8 h8Q Rg8 Qh7 Rh8 Qg8 Rh7 Ke8 Rh6 Qdb5 Bh7 Rd5 Rh2 Rh5 Bg6+ Kf8 Qe5 Qgd5 Rc7 Rc5 Rd7 Rc8 Qc7 Qdc5 Rd3 Qcc6 Re3 Qcd5 Bf5 Ke8 Bh7 Qed3 Ree1 Qe2 Bg6+
1kr4b/7n/4R1bp/1KP2qB1/2RbQpQP/nN2r1RN/3b2R1/3bbn1b w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 f5 f6 Bc4 fxe5 f6 e4 Be6 Na6 Bg4 Nb8 Bf5 gxf5 Ke2 d5 h4 Kd7 g4 Kc7 b4 e5 c4 a5 b5 d3+ Ke3 d2 f7 d4+ Ke2 d3+ Ke3 h6 c5 f4+ Kf2 a3 g5 a4 g6 a2 g7 a3 Nc3 e3+ Kf1 e4 Nf3 e2+ Kf2 e1B+ Kf1 e3 Ne2 Qf6 Rb1 a1N Ng5 a2 Ng3 Ra3 Nf5 Nc2 Ra1 Nc6 b6+ Kb8 b7 N6b4 Bb2 Nd5 Qg4 d1B Rc1 a1B Rh3 d2 Rg3 Bf3 Nh3 d1B Nd4 Bf5 Nb3 Bh1 Bc3 Qe6 Bf6 Bd2 Bg5 Ngf6 g8R Bg6 Rg7 Be7 f8R+ Qc8 Rff7 Nh7 Rf6 Qf5 Re6 e2+ Kf2 e1B+ Kf1 Nd4 Rc4 Rc8 Rg2 Nb5 Rg3 Bc2 Ke2 Bef6 Rg8 Bh8 Rg7 Bd4 Rg8 Kc7 b8Q+ Kd7 Qe5 Ne3 Qd5+ Kc7 Qe4 Bd1+ Kd3 Nf1 Rc1 Ra2 Kc4 Kb8 Rcc3 Na3+ Kb4 Nb1 Kb5 Rc2 Rc4 Rc3 Rg2 Re3 Rd8 Ba1 Rd3 Bad4 Rdc3 Re2 Rf3 Re3 Rfg3 Na3+
Q3R2B/2Kn3b/r7/2qQ2nq/1b1pRPkr/2n1pb2/2Q1P1q1/1NrrQ1N1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bd2 h3 Bg2 hxg2 Bg5 fxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 Kd3 Kg6 Ke4 Kh5 Ke5 b5 c4 d5 f4 g5 a4 g3 h4 b3 a5 b2 c5 b4 c6 b3 c7 g4 a6 d3 a7 d2 Nf3 g1Q Nc3 b1N Nh2 g2 Ne4 b2 Nf2 g3 Qc2 d1R Nf3 Nd7+ Ke6 Nh6 Ra6 Nc3 Ne4 b1B Bb2 Bb7 c8Q Nf7 Qc6 Qe8 Ned2 Kg4 h5 Qc5 h6 g1R h7 g2 Ra4 Rc1 Qb5 Rgd1 Re4 g1Q Qc6 Qg2 Ng1 Nb8 Rh6 Ng5+ Ke5 Qh5 Re6 Rg8 h8Q Rg6 Rd6 Rh6 Rd8 e6 Re8 Rh7 Kf6 e5 Qg8 Bd6 Q6a4 Bc6 Qd4 Bf8 Qf2 Bd6 Qe1 Bf8 Rd4 e4 Ke5 e3 Re4 Be7 Qa4 Bd3 Nb1 Rh8 Qc2 Bb7 Ba3 d4+ Qd5 Bf8 Bb4 Rh6 Ba5 Ra6 Bd8 Bc6 Bf6 Bb7 Bh8 Bd6+ Kf6 Nd7+ Kg7 Rc8 a8Q Be7 Kg8 Rcc6 Kg7 Rh6 Re6 Qc4 Qd6 Bf3 Qdd5 Qhh3 Kg8 Bf5 Re4 Bb4 Kg7 Qc5 Kg8 Rh5 Kg7 Nb6 Kf6 Bh7 Ke5 Nf7+ Ke6 Nd7+ Qd6 Qhh1 Ke7 Ng5 Kd8 Rh3 Qdc6 Rg3 Kc7 Qh5 Qa2 Rh3 Qc2 Qd5 Qc4 Rh4 Q4a2 Qb5 Q2d5 Qc5+
n1N2b2/2qb1Kb1/qpr1Q1n1/1RRpN1qP/1r1P4/1n1NB2Q/8/k1Nrq3 w - - 0 1 legal: proof: g4 c5 f4 a5 b4 e5 g5 exf4 g6 a4 Bh3 cxb4 Bg2 hxg6 Bf3 g5 Bd5 g4 Bb3 axb3 Kf2 Ke7 c4 Kd6 h4 Kc5 e4 Kd4 a4 g5 a5 d5 e5 f5 a6 b6 c5 b2 h5 b3 d3 f3 Kg3 f2 e6 f1Q c6 f4+ Kh2 f3 Kg3 f2 a7 Bd7 e7 Qe1 e8Q f1Q+ Kh2 Qc7+ Bf4 Rh6 Ra5 Ne7 Nh3 Ng6 Nf2 Na6 Na3 Kc3 Kg3 b1N Qe6 Kb2 Qf3 Ka1 Rb5 b2 Nc4 Nd2 Ne5 b1R Be3 Rb4 d4 Nb3 Qg2 Rc8 a8N Qc4 Kh2 g3+ Kh3 Re8 Qh2 g2 Kg4 g1Q+ Kf5 g4 Kf6 g3 Nfd3 g2 Nc1 Qce2 Kf7 Qd3 Bg5 Qge3 Rc5 g1B Qhh3 Bh2 Rg1 Q3g3 Be3 Qg5 Rb5 Qde2 Rg2 Qa2 Rc2 Qa4 Rcc5 Bg7 Nf3 Bd6 Ne5 Rc8 Qg3 Bdf8 Qgh3 Qb7 c7 Re8 c8N Nc7 Qef5 Qaa6 Qfg4 Re6 Qf5 Rc6 Qe6 Rh8 Qd6 Rg8 Qde6 Ne8 Nc7 Qba7 Qd6 Qb8 Ne6 Nc7 Nf4 Na8 Nfd3 Qc7 Qf6 Bd6 Qf4 Re8 Qf6 Bdf8 Ng4 Re4 Nge5 Rg4 Qe6 Rg2 Bf4 Rd2 Be3 Rd1
1q1R1rq1/Q4r1r/6pn/3Q2nq/bQ2qpP1/b2RbN2/P3Q1K1/kNn3B1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Kd2 h3 Bg2 hxg2 Ke1 exf6 Bg5 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 e4 Ke5 h4 b5 c5 f5 h5 d5 c6 f3 h6 b3 h7 g6 c7 b4 Qd3 b2 Qb3 d3 Bg5 Kd4 e5 d2 e6 d1N+ Ke1 f2+ Ke2 f1R e7 Nh6 e8Q Bd7 c8Q Nc3+ Kd2 Ba4 Qcd7 Nc6 Qef7 Ne2 Bf4 Ne5 Qc7 Nf3+ Kc2 Ng5 Kd2 Nc1 Na3 b1Q Qd6 Qe4 Qc2 b3 Qfd7 b2 Rh3 b1Q Qa7+ Qbb6 Qdb8 Rf3 Nb1 Ba3 Qd1 Qg8 Qe2 Rf2 Qbb7 Rf8 Ke1 Rf7 Bb8 Rf4 Qe7 Rh4 Kf2 f4 Qg4 Rh5 Nf3+ Kd3+ Qc5 g1B+ Kg2 d4 Qd5 Kc2 Bd6 Kb2 Bc5 d3 Bf2 Bh2 Bg1 d2 Qge6 d1Q g4 Qbb8 Qee7 Qdb3 Qb4 Qbe5 Rg3 Qgb8 Rh3 Rhf8 h8Q Bg3 Qf6 Bf2 Qfa6 Be3 Rg3 Rh1 Rh3 Nf5 Rh8 Rhh7 Qad3 Nh6 Qf1 Rf6 Qfc4 R8f7 Rd8 Rf8 Qca6 R6f7 Qe2+ Bd2 Qec4 Rf6 Bf2 Ne2 Qdf7 Be3 Nd2 Ne6 Rd1 Qh5 Bg1 Ng5 Nb1 Nc1 Qe2+ Ka1 R1d3 Qbe6 Qfd7 Qg8 Qd5 R6f7
3R2B1/b1n2nr1/R1b5/n2nB2k/1q1pP1rr/3PQ1pK/Q1n2RRN/n6b w - - 0 1 illegal: No possible last move
1QqB2r1/N4rN1/2rn1R1p/Q2r1B1K/P1r4p/n6Q/1Qb1nb1P/2nk1n2 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 f4 exf4 d5 g5 Ra3 c6 Rc3 cxd5 Rh3 d4 Rh4 gxh4 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 c4+ Ke4 g3 b5 c5 d5+ Kh5 f5 c6 f3 g4 h6 c7 f2 e3 f4 g5 b3 g6 b2 g7 f3 Qe2 d3 Na3 b1N Nc4 d2 Ba3 d1R Bb4 d4 Ne5 d3 Qa2 d2 Bg2 f1N Nh3 Nf6+ Kg6 Rg8 Ng4 Kd3 e4 Ke2 e5 f2 e6 Rc1 e7 Nc6 e8Q+ Ne4 Qa3 d1R Qe7 Na5 Ne3 Ra6+ Kh5 Rc4 Qc5 Nd6 Ng5 Nc3 Ne6 Rd5+ Nf5 Nb3 Qb2+ Kd1 Ba5 b4 Bh3 Ne2 Nd4 Nbc1 Nb5 b3 Na7 Rc6 Qb5 Bb7 c8Q Ba6 Qd7 Qc8 Bd8 Be7 Qc5 Bg5 Rg1 Be3 Qa5 Bc5 Rg6 Bd4 Qbc3 b2 Rf6 b1N Qb2 Na3 Qe6 Rc3 Bg4 Bd3 Qe3 Bc2 Qh3 Rh8 g8Q R3c4 Qe8 Rg8 Qf8 Ne3 Qe8 f1R Qe5 Rf3 Ng7 Nf1 Bf5 Bf2 Qe8 Rb3 Qee5 Rb7 Qf4 Rf7 Qfg3 Ndb5 Qb8 Nd6
4B1k1/2NRqp2/1K3P1q/Pn1QpNnn/1q1B1b2/2Q1N2r/N3q1b1/1q3r1q w - - 0 1 legal: proof: e4 a5 b4 axb4 a4 g5 h4 gxh4 e5 c5 e6 c4 Rh3 dxe6 Rh1 e5 Ra3 e4 Rb3 cxb3 Ke2 h5 Ke3 b5 g4 e5 f4 h3 d4 h2 c4 b2 c5 b3 f5 h4 d5 b4 d6 h3 g5 Bb7 g6 Nf6 c6 Nh7 c7 Qe7 g7 Nd7 g8N Ng5 Nh6 Nf6 Qd5 Nh5 Nc3 b1Q f6 b2 Nge2 b3 Nf5 Bh6 d7+ Kf8 d8N Kg8 c8Q Ra7 Rg1 h1Q Neg3 h2 Na2 Rh7 Kd2 e3+ Kc3 e2 Kc4 e1Q Kb5 Qe2+ Kb6 Qbe4 Ne3 b1Q Qc7 b2 Ne6 Rh8 Ngf5 Q4b4+ Qb5 Rh7 Qc3 Bg2 Nc7 Ra8 Bd2 Rd8 Be1 Rd1 a5 Ng7 Qb3 Ne4 Na8 Qbd3 Ng3 b1N Nc7 Na3 Ka6 Qh5 Nc2 Bf4 Nf5 Ng5 Bc3 Qde4 Bd3 Qee2 Kb6 Rh6 Re1 Qhf1 Nce3 Rb1 Rd1 h1Q Be4 Qg6 Bc6 Rh3 Be8 Qh6 Rd7 Nh5 Bd4 Qfd1 Qc3 Qdd3 Ka7 Rf1 Qd5 Nb5+ Kb6 Qdb1
nb1rrr2/bn4nq/1r2pR2/n1N1p1Rr/N1NkP1NQ/3P4/b3B1Q1/6K1 w - - 0 1 legal: proof: c4 a5 b4 axb4 h4 d5 h5 dxc4 h6 f6 Bb2 gxh6 Ba3 h5 Bb2 h4 Be5 fxe5 e4 Kd7 a4 Kd6 g4 Kc5 f4 b5 Kf2 h5 g5 h3 d3 h4 a5 b3 g6 h2 g7 c3 a6 c2 a7 c1B f5 h3 f6 b2 f7 b4 Bg2 b3 Qc2+ Kd4 Qe2 c5 Nc3 b1R Qb2 c4 Ra4 Nc6 Ra2 Qd7 Ra5 Nf6 g8N Ne8 Qa1 b2 Qa2 Nc7 Ra3 Be3+ Kf3 Rf1+ Kg3 b1R Nd5 c3 Qb2 Na5 Qb5 c2 Bf3 c1N Ngf6 Ncb3 Nc3 Nb7 Be2 N3a5 Ng4 e6 Ra2 Bd6 f8N Qh7 Nd7 Rd8 Na4 Rff8 Ndc5 Rfe8 Qd7 Rb6 Qg7 Rb8 Qg5 Na8 Qh4 Bd7 Ra1 Bb5 Rf1 Bc4 Rf6 Ba2 Kf3 Rbc8 Kg3 Bb8 Kf3 Nc7 a8Q Rf8 Qa6 Na8 Qb5 Rde8 Qb1 Rcd8 Qc2 Bd2 Kf2 Bb4 Na6 B4d6 Kf1 Ba7 N6c5 Bc7 Nf2 Bcb8 Nf3+ Ke3 Nd2 Kd4 Rg1 h1N Rg3 h2 Rg5 Ng3+ Kg2 h1R Ng4 Rh3 Nc4 Nf5 Kg1 Ng7 Qb1 Rdd6 Qf1 Rdd8 Qg2 Rh2 Qe1 Rh6 Qh4 Rh5
b2KrnN1/QBp4P/5R1n/1kP4R/1n2rb2/1rBn4/pQ1bb2q/Q1Qn4 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 bxa4 e4 gxf4 Nc3 d5 g5 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 Ke2 Kd7 d4 Kc6 c4 f5 b4 e5 h4 a5 c5 e3 Kd3 a3 Kc4 g3 h5 a2 g6 e4 g7 g2 h6 e2 h7 e1N Bd2 f3 Rh4 e3 Qc2 f2 Qc3 a4 Re4 f4 Nf3 g1B Re5 e2 Ng5 f3 Rd1 a1N Qc1 a3 Nf7 a2 Nh6 Bd6 Bc3 Nd3 Rh5 e1R Bg2 Re4 Rf1 Bf4 Qb2 Qh4 b5+ Kd7 Kd5 Ra3 b6 Qh2 b7 Rb3 Bh1 Nc2 Bg2 Nc6 b8Q Nce5 Qa1 Ng6 Qa7 Nf8 Qc1 Ke8 Kc6 Ncb4+ Kb5 Kd7 d5 Bd2 d6 Bb7 Qb2 Ba8 Bh1 Nf6 g8Q Ng4 Qc4 Bf4 Ng8 Nh6 Bg7 Bd2 Qcc1 Bf4 Bc3 Bd2 Ka5 Kc6 d7 Bf4 d8Q Bd2 Re1 f1B Qd4 Be2 Rf1 Bge3 Qba1 f2 Qe5 Kd7 Kb5 Bf4 Qf6 Re7 Bb7 Re4 Rg1 f1N Rg6 Ne3 Qab2 Bd6 Qff1 Bf4 Rf6 Nd1 Qca1 N1f2 Qfc1 Nd1 Qa5 Nc2+ Ka6 Ncb4+ Ka7 Ne1 Kb8 Ned3 Qa7 Ne6 Bc8+ Kc6 Bb7+ Kb5 Kc8 Nf8 Ne7 Rg8 Kd8 Rg5 Ng8 Rge5 Rff5 Re7 Rf6 Re8#
1QB3B1/K1Qb1b1r/4R3/pnp3Nk/n2rb1rq/1rP1b3/PBn1Nr2/4B3 w - - 0 2 legal: proof: f4 c5 b4 cxb4 h4 g5 Na3 gxh4 Rb1 e5 Rb3 exf4 Rc3 d6 Rc5 dxc5 Kf2 h5 e4 b5 d4 a5 g4 f5 d5 Kf7 g5 Kg6 c3 b3 d6 b4 d7 b2 e5 b1N e6 h3 e7 b3 Bd3 b2 Ke2 h2 Nf3 h4 Qg1 h3 Ne1 f3+ Ke3 f2 Be4 f1R Qg3 Nh6 e8Q+ Nf7 Ng2 Rf2 Nh4+ Kh5 g6 f4+ Kd3 f3 Kc4 Bh6 Kb5 Rg8 g7 Be3 Qf8 Nd6+ Ka4 Nb5 Rf1 h1R Re1 h2 Nc2 N1a3 Qgd6 b1R Bb7 Rb3 Nd4 Nc2 Qc7 Qg5 d8B Bd7 Re2 Rd1 Bb2 h1B Re1 Ra7 Ne2 Qh6 Qff4 Rd6 Qb4 Rd4 Bc8 Rb7 Ng6 Qg5 Nh8 Qh4 Bg5 Bf5 Be7 Nd7 Nf7 Bg6 Ng5 Bf7 Bd6 Bg2 Bg3 Bh3 Rd1 Bf5 Re1 Be4 Bh2 Rh8 g8B Rh7 Bg3 Rb6 Qb8 Rg6 Qc7 Rgg7 Ne6 Rg4 Ng5 Rh2 Bf2 Rhg2 Bg3 f2 Bd6 Na7 Bg3 Bd3 Bb7 Bf4 Ng1 Bc1 Re8 Be3 Ne2 Be4 Ba6 f1B Bf2 Rf4 Be1 Rgf2 Bc8 Bh3 Re5 Bhf5 Re8 Rg4 Re7 Nc6 Kb5 Na7+ Ka6 Nb6 Re8 Bd7 Re6 Na4 Qbb6 Rd5 Qbb8 Nb5 Kb7 Rd4+ Ka6 Nd6 Ka7 Nb5+
r1q1Rb2/1p2n1rb/Qn4N1/nP1Q1pBN/N4b2/3nN1rB/3Pn2K/1b2k3 w - - 0 1 legal: proof: b4 d5 a4 a5 c4 dxc4 f4 e5 h4 exf4 b5 g5 Ra2 gxh4 Rb2 Bb4 Rb3 Bf8 Rb4 axb4 Kf2 Ke7 e4 Kd6 g4 Kc5 Kg2 Kd4 a5 c5 a6 h5 e5 c3 e6 c4 e7 f3+ Kh2 b3 e8N f2 a7 b2 g5 h3 g6 h4 g7 c2 Be2 f1R Bd3 c3 Qe2 Nd7 Qg2 Ne7 g8Q Nb6 Ng7 Bf5 Be2 Rh7 Na3 b1B Qc6 Rf3 Bd3 Qc8 Bb2 c1B Be2 Rg3 Bd1 Kd3 Qg2 c2 Bd4 Bb2 Bh5 c1N Nc2 Nb3 Bg4 Na5 Bf6 Be5 Ne3 Bf4 Nh5 Rg7 Nf3 Bh7 Bg5 f5 Qg1 Ke2 Qd5 Rg8 Qc1 Rg7 Qcc6 Kf2 Rc1 Ke2 Rc3 Kf2 Ne5 Ke1 Kh1 h2 Ng6 Rf3 Kg2 h1N Bh3 Rg3+ Kh2 Nf2 Rc4 Nd3 Re4 Nd7 Qa6 Nb6 Bg4 h3 Re6 Nec6 Re8 Ne7 Kh1 h2 Bh3 Rf3 Kg2 h1N Kg1 Ng3 Kh2 Rb8 a8N Ne2+ Kh1 Nd7 Nb6 Ra8 Na4 Rg3 Kh2 Nb6
2B3n1/P1RQrb2/bb1p2r1/rQnq1Rnk/1r1QQK2/3P1b2/1Np4B/1r6 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 Na3 bxc4 b5 e5 Nc2 exf4 Nb4 axb4 Kf2 f5 Kf3 Kf7 g4 Kg6 e4 c5 a4 h5 e5 b3 d3 h3 e6 b2 e7 b1R g5 c3 b6 c2 a5 c4 b7 c3 a6 h4 Rh2 Rh6 Qe1 Kh5 e8Q+ Rg6 Q8e6 Rb4 Qc4 Bc5 Qee4 Bb6 Rd2 h2 Qe2 h1B+ Bg2 h3 Qd1 h2 Bb2 c1R Ra5 Rb1 Qe2 c2 a7 Na6 b8Q Nc5 Nh3 Ba6 Qee4 Ra1 Rb5 Ra5 Rf2 d6 Bg7 Qe7 Be5 Qb7 Qd4 Qd5 Qb7 Re8 Qd7 Re7 Rf1 Qa8 Nf2 Qd5 Ke2 f3+ Ke3 Ra1 Bf4 Ra5 Nd1 f2 Bh3 Bf3 Nb2 h1B Bh2 Bhg2 Rb1 f1N+ Kf4 Nd2 Rh1 Bc7 Rb7 Bb6 Rf1 Bh1 Rc7 Bhg2 Qee5 Nde4 Qee6 Rf6 g6 Ng5 g7 Rg6 Qee4 Bh1 Kg3 f4+ Kf2 Nh6 g8Q Bhg2 Qge8 Ng8 Bf5 Bh3 Qb5 Bhg4 Bd7 Be6 Bc8 Bf7 Qd8 Bd1 Kg2 f3+ Kg3 f2 Qdd7 Be2 Kf4 Bf3 Rg1 f1R Rg3 Rb1 Rg1 Nh7 Rg5+ Kh4 Re5 Ng5 Rf5 Kh5
rbkqnb1K/b1pr4/bB6/3p2Q1/1QBP2b1/2P3R1/4n1N1/BrNB1rn1 w - - 1 2 legal: proof: f4 e5 a4 exf4 b4 h5 g4 hxg4 b5 g3 b6 g2 Ra2 axb6 Ra1 b5 Ra3 b4 Rg3 fxg3 h4 d5 e4 Kd7 Ke2 b5 Ke3 f5 Kd4 g5 Ke5 f4 h5 b3 h6 b4 a5 f3 h7 f2 a6 g4 a7 b2 Nh3 g1B Nc3 b1N Ne2 b3 Qe1 g2 Nhf4 b2 Rh3 Ba6 Rg3 Nf6 d3 Ne8 Be3 Bc8 Bb6 Nc3 Nc1 Ne2 Qb4 b1R Kf5 Nc6 Kg6 Ba6 e5 Kc8 e6 Ncd4 e7 Nf3 Kf7 Rg8 h8B Rg6 Be5 Rd6 Kg8 Rd7 Bf6 Rb2 Kh8 Rb1 Rh3 g3 Ba1 Ned4 Be2 f1B Bd1 Ne2 c3 Be3 Ba5 g1R Bb6 g2 Rg3 Nf6 e8Q Rh1+ Qh5 g1B Qh4 Bh3 Qg5 Ne8 Ng2 Bgf2 Qa4 Rf1 Qb4 Rb8 a8B Bg4 Bc6 Nfg1 Bca4 Ra8 Bb5 Bec5 Bc4 Bfe3 Ba5 Ba7 Bb6 Bec5 d4 Bb8 Ba5 Bca7 Bb6 Rdf7 Qc5 Rg7 Qb4 Rd7
2RNnrB1/4p1q1/3PpBn1/3rP3/2Br1r2/k1nRbQ2/2K1n1q1/BQ1n1b2 w - - 0 1 legal: proof: c4 d5 b4 dxc4 h4 g5 Na3 gxh4 Nc2 a5 Nd4 axb4 Ne6 fxe6 a4 Kd7 g4 Kc6 e4 Kc5 f4 h5 e5 b5 d3 c3 g5 c2 Kd2 b3 g6 Kb4 d4 c5 a5 c4 f5 h3 d5 h4 g7 b2 f6 b1R a6 h2 f7 h3 d6 c3+ Kd3 Nd7 a7 Rh4 Qd2 Rf4 Ra6 Ngf6 g8B Ne8 Ne2 Bh6 Bh7 Nf8 Bg2 Ng6 Ra5 Ba6 Rd1 h1N f8B h2 Ra1 Nf2+ Ke3 h1Q Bc6 Qg2 Bb2 c1R Qd5 c2 Rd3 Rd1 Nd4 c1N Bg8 Ne2 Bg7 Rbc1 Ra2 Rc5 Qf3 Rd5 Ba1 Rc8 Rad2 Ka4 Ba8 b4 Nc6 b3 Rc2 b2 Bf6 b1N Rc5 Qb6 Nd8 Nbc3 Bc6+ Kb3 a8Q Ka3 Qb8 Qb1 Rc4 Rd2 Bb5 Qbg1 Rc6 Q2h1 Qg2 Nh8 Qg3 Nd4 Qh3 Ng7 Nf7 Rf8 Rc8 Ne8 Nd8 Qg7 Qf3 Ng6 Qb6 Rd1 Rd2 Rh4+ Qf4 Qg2 Bf1 Be2 Qb1 Ba6 Be2 Rf1 Bb5 Nfd1+ Kd3 Rg4 Qf5 Be3 Qf2 Re4 Qg3 Rff4 Qf3 Nf5+ Kc2 Ng3 Be2 Red4 Bf1 Bc4 Bd3 Ba2 Ba6 Bc4 Bb5 Bf1 Bc4 Nge2 Rd3 Qh7 Ba6 Qh6 Bc4 Qg7
nkB2q2/3n1Q2/3q1rp1/4Q3/Q4PP1/q2nrbqK/NpR4n/BnbQ2R1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 b4 fxe4 d5 axb4 d6 h4 Nc3 cxd6 Nce2 d5 Ng3 hxg3 Ke2 d4 Kd2 Rh7 Ke1 Rh8 h4 b5 f4 d5 a4 Kd7 c4 Kc7 a5 e5 a6 g2 Kf2 d3 Kg3 g6 a7 d2 h5 d4 c5 b3 h6 d3 h7 b2 c6 b1N Ra3 b4 Qa4 d1Q Nh3 g1Q+ Bg2 e3 Rc3 b3 Nf2 e2 Ba3 e1N Be7 d2 Qa1 e4 Bh4 e3 Bg5 e2 Bf6 Nf3 Qa6 e1N Rh2 Nd7 Bd4 Ne7 Qa1 Qc1 Rh6 d1Q Nd3 Nd5 Rh1 Ba3 Nb4 Rf8 h8Q Rf6 Rc2 N5b6 Kh3 Bb7 Na2 Nd3 Qg7 Qc8 Qf7 Qf8 Qc3 Re8 a8Q Qce3 Qa4 Na8 Qa1 Qgf2 Rg1 Nh2+ Bf3 Kc8 c7 Bc1 Bb2 Qa7 Bd5 Re1 Be6 Bf3 Be5 Qa6 Qb2 Kb7 c8Q+ Ka7 Qcc6 Re3 Qd5 Qdd2 Bc3 Kb8 Qa1 Qad6 Qe5 Qfe1 Bd4 Qb4 Bb2 Qa3 Bf5 N7c5 Bc8 Nd7 Bd4 Nd2 Qb1 Qf2 Ba1 b2 Rc6 Qe1 Qbc2 Nb1 Qd1 Qf2 Rc2 Qg3+
Q2Rb1R1/1qp2pPr/6N1/1nkBbP2/Qb1r1nn1/5Q2/K1b1n1N1/2Qb2q1 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 h4 axb4 h5 e5 d5 g6 Be3 gxh5 Bc5 h4 Bd4 exd4 Kd2 Ke7 Kc2 Kd6 Kb2 b5 e4 h5 a4 h3 g4 h2 f4 b3 e5+ Kc5 f5 d3 a5 b4 a6 c3+ Kc1 c2 Kb2 h4 d6 h3 d7 d2 g5 Ne7 a7 Nd5 g6 Nc6 e6 Qg5 d8Q Rh7 g7 Bd7 e7 Ne5 e8Q Ng4 Qee1 Nf4 Bd3 Be8 Qd7 Rd8 Ra2 c1B+ Ka1 Ba3 a8Q Bd6 Qde2 d1B Q1f1 Be5+ Nc3 b2+ Kb1 Qg6 Qda4 Rd4 Qef3 Qb6 Nge2 Qb7 Rg1 h1Q Be4 h2 Bd5 Qg2 Ra1 h1N Ka2 Ng3 Rh1 b1N Rh5 Bc2 Nd1 Qg1 Ne3 Bd1 Rh2 Nh6 Ng2 Ng4 Nc3 Nge2 Rh5 Bc2 Qc1 Bd1 Rh3 Nd2 Rb1 Nc4 Rb2 Nd6 Rd2 Nb5 Rh6 Na7 Rd6 Nb5 Rd8 Bc6 Rg8 b3+ Kb1 b2 Ka2 Bb4 Rd3 Ng3 Rd2 Be8 Ne2+ Rc4 Nd4 Nge2 Nc6 Rc3 Ne7 b1B+ Kb2 Be4 Ng6 Bec2 Ka2 Rd3 Bc4 Rc3 Rd8 Rd3 Bd5 Rd4
n3q1r1/1kB4Q/b2qRp2/2qpn3/n2n4/br1P2NP/BQ3B1B/1Kq2Rq1 w - - 0 1 illegal: No proof kernel
r2Rr1q1/Qb3nr1/n3R3/1k1r2b1/pnnR4/K2p1q1Q/PP6/1B1nRNN1 w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Nb1 hxg6 Bd2 g5 Bb4 g4 Be7 Rh7 Bh4 Rh8 Bg3 fxg3 Kd2 d5 Kc2 Kd7 h4 Kc6 e4 a5 f4 g5 h5 g2 f5 g3 e5 d3+ Kc3 d4+ Kd2 c3+ Kc1 d2+ Kc2 g4 Kb3 a4+ Kc4 c2 e6 c1N h6 Be7 f6 Bb7 f7 Nd3 f8R Bg5 h7 Qf6 e7 Ne5+ Kb4 Na6+ Ka3 Qf3+ Bd3 Nh6 e8R Nhf7 Qe1 d1N Nh3 g1R Qb4 g2 Rg8 g3 Qe1 Rf1 Nd2 g1Q Nf4 g2 Nc4 Kb5 Qe2 c5 Ne3+ c4 Qf2 Re1 Be4 c3 Rh4 c2 Ne2 c1N Re6 Ncd3 Rd8 Ndb4 Bb1 d3 Rhd4 Re8 h8Q Rf1 Qh3 Re1 Ng3 Re2 Nef1 Rc2 Rf6 Rc5 Re6 Rd5 Qe3 Qgf2 Ne2 Q2g3 Qf2 g1R Qe3 Bf6 Qf2 Qg8 Qe3 Rg7 Ng1 Nd6 Re4 Nef7 Qa7 Be7 Rd4 Bg5 Bc2 Nc3 Rae1 Nd1 Bb1 Nc4+
8/bpBNb1qq/N1q1p1B1/qBbb4/1P2Q2K/2Rr2Pn/4n1Qq/2Bk1r2 w - - 0 1 illegal: No possible last move
2B3Q1/b3q1B1/Q2pr2K/p1P1b1bQ/n1bN1r2/r2N3r/P2k3b/Q1q3Rn w - - 0 1 legal: proof: d4 c5 g4 h5 b4 hxg4 d5 cxb4 d6 f5 Nd2 f4 Rb1 exd6 Rb2 d5 Rb3 d4 Rg3 fxg3 f4 Kf7 e4 Kf6 Ke2 g5 c4 b5 h4 d6 h5 b3 e5+ Kf5 e6 b4 h6 g2 e7 b2 e8Q b1Q h7 g3 Kf3 d3 Ne2 g1B Bb2 g4+ Kg2 b3 Rh4 Be6 Qe1 Bd4 Bc1 b2 Rh1 Nh6 Qd1 Na6 Nb3 Ke4 f5 d2 f6 Kd3 f7 Qe7 Qa4 Be5 Qb5 Nf5 Qe8 Bfg7 f8Q Nc5 Qh5 Bgf6 Qb8 Na4 Qe1 d1R Bd2 Qc1 Qb7 b1R Na5 Rb4 Nb3 a5 Rg1 Rae8 Bg5 Kc2 Bh4 Rd3 Nc5 Ra3 Nd3 Bf7 Qc3+ Kd1 Qa1 Kd2 Nd4 Be6 Qa6 Bg8 Rh1 Bf7 Kg1 g2 Kf2 g3+ Kf3 g1B Kg4 Bh2 Bh3 g2 Rg1 Ng3 Bg5+ Bf4 Kh4 Nh1 Bc8 Bg8 Kg4 Bd5 Bh4 B4e5 Kf5 Bg8 Kg6 Be6 Kh6 Bf7 Rf1 g1B Bg3 Bf2 Rg1 Bg8 Nc6 Bb6 c5 Rf4 Nd4 Bc4 Bh4 Ba7 Bf2 Rhg8 h8Q Rg3 Qg8 Rh3 Bg3 Qb7 Bh4 Re6 Be1+ Ke3 Bc3 Qe7 Bb2 Kd2 Nc6 Bh4+ Qgg6 Bh8 Bf6 Re5 Nd4 Re6 Bg5 Be5 Bf6 Qf1 Bh8 Bhf6 Qg8 Qc1 Bg7 Bg5+
1k2rBn1/2nrb1qp/bK1R2N1/B3p2n/4n1r1/Bn2r2Q/3PB2P/R1qQ4 w - - 0 1 legal: proof: e4 b5 c4 d5 a4 bxa4 f4 dxc4 Qe2 f5 Nc3 g6 Qd1 fxe4 f5 g5 Nce2 Bd7 Nf4 gxf4 Ra2 Be6 Ra1 Bc8 Ke2 Kd7 g4 c5 b4 Kc7 b5 e5 g5 a5 f6 a3 g6 a4 g7 e3 f7 c3 Nh3 a2 Qb3 c4 Ng5 c2 Rg1 f3+ Ke1 f2+ Ke2 a3 Bg2 f1N Be4 c3 Qd5 Qf6 Kd3 e2 Kc4 e1R Bg6 Ng3 Rh1 Na6 b6+ Kb8 Kb5 Nh5 b7 Be7 f8B Re3 Qd3 Ra7 Ne6 Nc7+ Kb6 Ra4 Qf1 Rg4 Qd1 Qg5 Rb1 a1R Nf4 a2 Ba3 c1Q Bd3 c2 Ng6 Qh6 Rb2 Rb1 Re1 a1N Be2 Nb3 Rg1 Ra1 Rb1 Ra2 Ra1 Nc5 Rf1 Qg5 Rf6 Ne4 Rd6 Qf6 Bc5 Ra7 Ba3 Nh6 g8Q Qg7 Qb3 Ng8 Bc5 Qb2 Bb4 c1N Ba5 Qa3 Qe6 Nb3 Qf5 Qc1 Qd7 Rg1 Qh3 Rg4 Qf3 Ne6 Qff1 Nh6 Qh3 Qf7 Bg7 Re8 Bf8 Ng8 Bb4 Qf6 Ba3 Qg7 Kb5 Kc7 b8B+ Kb7 Bc7 Ka8 Bd8 Kb8 Bb6 Rd7 Ba5 Nc7+ Kb6 Ba6
1q1q4/pR1B4/N1nR2b1/3r1rNN/1q1kb2q/Q1rPp3/bN2Pbn1/2KQ4 w - - 0 1 legal: proof: c4 g5 f4 d5 a4 dxc4 g4 b5 b3 bxa4 Bb2 h6 Bf6 gxf4 g5 Qd6 g6 Qd8 Bg5 hxg5 h4 Kd7 h5 Kd6 h6 Kc5 d3 e5 Kd2 f5 h7 c3+ Kc2 f3 b4+ Kd4 g7 c5 b5 f4 b6 f2 b7 c4 Qd2 e4 Rh4 g4 Kc1 a3 Kd1 a2 Qc2 g3 Bg2 f1B Rh3 f3 Qb3 c2+ Kd2 c1R Qc2 f2 Qa4 Rc3 Rh6 Rb3 Rg6 Ne7 g8N Nbc6 b8N Bf5 Nh3 Nd5 Kc2 Nf4 Na6 Bc5 Nb4 c3 Nf6 Rf8 Kd1 c2+ Kc1 Rb8 h8Q Rb5 Rg5 Bg6 Bf3 g2 Qa6 g1Q Qh7 Bg2+ Kd2 f1B Rg4 Qf2 Qf7 Qh4 Nc3 Qb8 Re1 a1Q Qa3 Qb1 Nd1 Rd8 Qe6 Rd5 Ng5 Bh3 Na6 Bfg2 Rf1 Bh1 Nh5 Ng2 Qc8 Bb6 Rf4 Be6 Nb2 Rf5 Bg4 Rbd5 Nc4 Qb2 Rb1 Qc3+ Kc1 Qb4 Qh8+ Rf6 Qd8 Rb2 Ne3 Qa5 Qb3 Rd6 Bh3 Qd5 Kd2 Ba5+ Kc1 Be1 Bg4 Bf2 Rf5 Nf4 Nd1 e3 Qg8 Be4 Qf8 Ng2 Rf3 Rd8 Qfa3 Qd7 Qba4+ Rb4 Rf4 Ba2 Q4b3 Qdc7 Kb2 Rd5 Bd7 Qcd8 Rf3 Rf8 Rf6 Rb7 Rd6 c1Q+ Ka1 Qc5 Kb2 Qb5 Kc1 Rf5 Qc2 Qba5 Rb5 Qc3 Nb2 Qca5 Qd1 Qe1 Ra5 Rb3 Rb5 Qb4 Rb7 Rc3+
1Nk3rq/2Bnb1nq/P2bn3/1B6/qB1pqpK1/3P4/5NrQ/1BR1bb1Q w - - 0 1 illegal: No possible last move, all moves rejected
3B4/2b1b1B1/1k2r1bR/2rqbr2/1pr2nBq/1PNQ1P2/p1QnqB2/2KN4 w - - 0 1 illegal: No proof kernel
2r3qr/n5Bp/1KBQ3B/1n1PQ1BP/3q4/1bnnRpb1/br6/1NbkN3 w - - 0 1 illegal: No proof kernel
NN1kb1r1/2r3bK/b5q1/4q1p1/pBn4R/1PQrbB1Q/Pq1Q1Q2/4q2n w - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 b5 b3 bxc4 Na3 h6 Rb1 Be6 Rb2 Bd7 Rc2 Bc8 Rc3 Ba6 Rg3 gxf4 g5 Bb7 g6 Bc8 Rg5 hxg5 Kf2 a5 d4 c5 h4 e5 d5 f5 g7 c3 h5 c2 d6 a4 h6 e3+ Kf3 c4 h7 e2 Qd3 e1Q Qc3 e4+ Kg2 f3+ Kh3 f2 Bg2 f1Q Bb2 c1R Qd2 e3 Bd4 e2 Bf6 f4+ Kh2 c3 Be5 c2 Nc4 f3 Bg3 f2 Nf3 Nf6 g8Q Qb6 d7+ Kd8 Kh3 Nc6 Bd6 Na5 Qb4 Nh5 Kg4 Ng3 Qc3 Ba6 Rh4 Nh1 Bb4 Qg6 Qf7 Bg7 Nd4 Rg8 Nb6 Nc4 h8Q Ra7 Bf3 Rd1 Qh7 c1B Na8 Rd3 Qf4 Rc7 Qh8 Qf6 Kh5 Be3 Qg3 Qe5 Kg6 Qa1 Kh7 Qfb1 Qh3 f1B Qb2 e1Q Qf2 Bh6 Qg7 Qab2 Qh8 Qe8 Qe5 Bg7 Qc5 Nb6 Qc3 Nc4 Ba5 Rd2+ Qc2 Qe5 Qg4 Nd6 Bb4 Ke7 Qh3 Bfc4 Qd3 Bf7 Qc2 Be8 d8Q+ Kf7 Nc6 Nc4 Nb8 Rd6 Qdd7+ Kf6 Qdf5+ Ke7 Qcd2 Kd8 Qg6 Qbe4 Qgf5 Qc6 Qfc2 Rd3 Qcc3 Qg6+
2n1Q1q1/4N1p1/r2k2n1/RQN2r2/2p2RPb/1r4B1/rNPn1Nq1/1b1bn2K w - - 0 2 illegal: No possible last move, all moves rejected
1KBr1RR1/1q2p1rN/3n1Rn1/3Qbb2/1rp1P3/n2Prk2/1RQ3q1/2N1nb2 w - - 0 1 illegal: No possible last move, all moves rejected
1B2k2N/r2qb1K1/1rnRprb1/Qp1Rq3/nR4B1/bQn4P/1P1r3n/4R3 w - - 0 1 illegal: No proof kernel
2Q1Q1K1/b1BBp1R1/1q1pBN2/2q2N2/Br2bb1r/k1P1P2n/b1n5/q3q2n w - - 0 1 legal: proof: b4 c5 a4 g5 f4 gxf4 g4 a5 d4 cxd4 g5 axb4 Ra3 h6 Rg3 h5 Rg4 hxg4 Kf2 f5 h4 b5 h5 d6 h6 Kd7 a5 Kc6 c3 b3 h7 b4 g6 Kb5 a6 Ka4 a7 g3+ Kf3 g2 g7 d3 Ba3 d2 Rh3 Nc6 Qe1 d1Q Rh2 b2 Rh4 b3 Rh6 Qa5 Qf2 Nf6 g8B Nh5 Bd5 Be6 Qb6 Qe1 Nd2 b1B Qd4+ Nb4 Rg6 b2 Qe3 Bh6 Rg7 Qc5 Ne4 Rab8 a8B Nc2 Nf6 Rb4 Qd3 Ba2 Qc4 b1Q Bab7 Bd7 Bc8 Bc6 Bd7 Qa1 Bc1 Qb1 Be3 Ka3 Qb5 Qb3 Qb8 Bb7 Qe8 Ba8 Nh3 g1B Nf2 Bg5 Nd1 Bf2 Kg2 f3+ Kh3 f4 B5e6 Be4 Kg4 Bg1 Ba4 f2 Bh3 f1Q Bd4 f3 Ne3 f2 Nf5 Bf4 Qc8 Bg3 Kg5 Nf4 Kh6 Qa1 Bg4 Nh3 Kg6 Qbb1 Kf7 Qfe1 Be3 f1N Bf2 Qc6 Bb6 Qc5 Bc7 Bf4 Qe8 Bd4 e3 Ng3 Qc8 Nh1 Qe8 Rg8 h8Q Qbb2 Qc8 Re8 Qh5 Rh8 Qg6 Rh4 Kg8 Qe5 Qge8 Ba7 Be2 Qc5 Beb5 Rc4 Bc6 Qbb6 Bcd7 Rb4
2q4N/1Q3Qp1/2rBn1q1/1rr5/k3p3/b1n1q1R1/2Pb1NPb/1KR1NbNr w - - 0 1 illegal: No possible last move
n1N1nK2/rp2PQRQ/B5rB/3rN3/1qb3q1/4b3/qPkq1B1p/B3r2n w - - 0 1 illegal: Other
b1NKb1k1/1B1b4/Brr1pPp1/4B2r/r2BP3/nQb1nr2/3Rr1Q1/1q4R1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Nd2 h4 Ne4 fxg6 Ba3 g5 Ng3 hxg3 Bc1 g4 Kd2 Kf7 Kd3 b5 Ke4 d5+ Ke5 b3 f4 g6 a4 g2 h4 g3 c4 d3 f5 b2 h5 b1R a5 e6 c5 d2 f6 b4 c6 b3 e3 d4 c7 b2 a6 d3 h6 Bd7 c8Q Ne7 Kd6 Nbc6 h7 Qb6 a7 Nb4+ Qc6 Nf5+ Ke5 Nc2 Ra3 Bb4 Nf3 g1R Rh2 g2 Ra1 Na3 Qb3 d1R Nd4 d2 Ba6 Rge1 Nb5 g1R Qg2 Rgf1 Nd6+ Kf8 Nc8 Rf3 e4 Ne3 Ra2 Re2 Rh1 Rdf1 Rg1 d1B Bd2 Qb7 Be1 Bc3+ Kd6 Rc1 Bf2 b1B Rd2 Ba2 Bg3 Qb5 Kc7 R1f2 Qd5 Ba4 Be5 Qb1 Kd8 Rff1 Qb7 Bd5 Qb3 Be8 Bd4 Bad7 Be5 Rb8 a8B Rb6 Bc6 Rc2 Bcb7 Rfc1 Bd4 Ra2 Be5 Ba1 Bd4 Rcc6 Be5 Bc3 Bd4 Rg8 h8B Kf7 Bg7 Rh8 Bh6 Kg8 Bf4 Rh5 Qg5 Nac4 Qg3 Ra4 Bfe5 Na3 Qg2 Rc5 Bc6 Rac4 Ba4 Ba8 Bc6 Ra4 Bcb7 Rcc6
1K2b3/rB3Q2/pBb1n2k/P1nn1rbB/4N3/1pPb1Q2/1b3p1q/1NRB2r1 w - - 0 1 legal: proof: b4 e5 a4 c5 d4 exd4 f4 cxb4 g4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 Kf2 d5 e4 f5 h4 Kf7 g6+ Kg7 e5 b5 a5 g3+ Kf3 d3 h5 a6 c3 g2 e6 b3 e7 b4 e8B d2 Ba4 b2 Na3 b1B Bd3 d4 Nh3 g1B Ng5 b3 Be4 d3 Rh4 Ra7 Ba8 Bd7 Bb7 Nh6 Rh1 Be8 Qc2 d1N Nf7 d2 Be4 Qh4 Bb5 Be3 Qd3 Nd7 Ng5 Nf7 Bb7 Rg8 Ne4 Kh6 g7 Qh2 Qd5 Be7 Be2 Nd8 Qf7 Bd3 Nb1 Nc5 Ba3 Rf8 g8B Bg5 Bh7 Nde6 Bg6 Bdb5 Rg1 Bbc6 Rh1 Nb2 Rc1 Nc4 Bd1 Nb6 Bb4 Nd5 Ba3 Nd3 Bd6 Bc5 Bc7 Ba3 Bb6 Ndc5 Qd7 Bb2 Bf7 Kg7 h6+ Kh7 Bh5+ Rf7 Bg4 Kg6 h7 Kh6 Bh5 Rf6 Be2 d1R Qf7 Rg1 Bd1 Rg6 Qg8 Rg7 h8Q+ Rh7 Qd4 Rf7 Qf2 Rf6 Qg2 Rf8 Kf2 f3 Qf7 Ndf4 Ke3 f2 Qf3 f1B Qd7 Bd3 Qf7 Ng7 Kd4 Nge6+ Ke5 Nd5+ Ng3 f4 Kd6 Bh4 Ne4 Bg5 Qg4 f3+ Qgf4 f2 Qg3 Nef4 Qf3 Nb4 Kc7 Nbd5+ Kb8 Nfe6+ Qc7 Rf4 Qf7 Rf5+
2K1n2r/1p1Nn3/4nQq1/6QN/1p1R2p1/Prn2NPk/B3qRn1/N1br1b2 w - - 0 1 illegal: No extended proof kernel
1Q3bn1/5NPb/Qp1N4/1PR2np1/1q3prk/B1RN4/3nq1n1/K2qn1Nr w - - 0 1 illegal: No proof kernel
Bn1k2r1/Kqqrr1R1/pQR1p1B1/P2NB2b/1Pn1q1pb/6q1/6Q1/3Bq3 w - - 0 1 illegal: No possible last move, all moves rejected
Q1Rb1b1R/1NN4R/3Qb1Bq/Kqr1br1n/6pp/2pr1k2/1P5P/2nR3b w - - 0 1 illegal: No possible last move, all moves rejected
q7/3n2RR/1k2pRrp/1q1P1BpN/1b2br1B/3n2Pb/rQ4b1/QKR3b1 w - - 0 1 illegal: No proof kernel
2BrRBB1/2r1P1NQ/br1Q3p/3bbKp1/1qnkb3/1pq3P1/4n3/2b1NB2 w - - 0 1 illegal: No proof kernel
nK6/2rb1pb1/Q2qn3/R1q1n2p/Qp2rPN1/P6Q/kB2nn1b/4RN1Q w - - 0 1 legal: proof: c4 g5 d4 d5 b4 a5 h4 gxh4 e3 axb4 Bd3 e6 Be4 dxc4 d5 Bh6 d6 Bf8 Bd5 exd5 Ke2 Kd7 Kf3 Ke6 Kf4 c5 g4 b5 d7 h5 f3 c3 e4 c4 a3 b3 g5 b4 e5 b2 g6 c2 g7 c3 Bd2 c1B Be3 h3 Ne2 h2 Ra2 c2 Ng1 d4 Nd2 Kd5 e6 b1N e7 d3 e8Q Nc6 Qe1 Nge7 g8Q Qa5 d8Q+ Bd7 Qeg3 Nc3 Ne2 Nb5 Q8g4 Ra7 Nd4 Ne5 Qg1 Bg7 Qc8 Nf5 Q4g2 Rc7 Nc6 Nfd4 Nf1 Kc4 Qh3 Kb3 Qa6 d2 Ra1 Bb2 Re1 d1Q Bc1 Ka2 Re3 Bc3 Bb2 c1N Ke4 Ne6 f4 Bd4 Kd5 Ne2 Rc3 Qd3 Rc5 Qd2 Qea8 Re8 Qgg2 Qb6 Rg1 Qc2 Qh1 Bf2 Qa4 Bg3 Q8a6 Re7 Nd2 Qc3 Re1 Qc1 Nf1 Qd2+ Ke4 Qd6 Rd5 Qbc5 Kf5 Ng6 Ne5 Re8 Ng4 Ne5 Q1g2 h1N Qgh2 Nf2 Qh1 Qc1 Rc5 Bh2 Rd5 Na7 Rc5 Nc8 Ra5 Nd1 Ke4 Nb6 Kf5 Na8 Ke4 Qf8 Kd5 Re7 Kd6 Nf2 Rd1 Qb8 Re1 Rc6+ Kd5 Ng6 Q3g2 Ng5 Ba1 Re4 Bb2 Ne6 Qh3 Ne5 Qb7 Rc3 Qa6 Nec7+ Kd6 Qb6+ Ke7 Qd6+ Kd8 Rc6 Q3f3 Qcc5 Qh3 Be8+ Kc8 Ne6+ Kb7 Rc7+ Kb8 Bd7
7n/1BQB1ppN/2r1pBbr/2Bqq3/nNk5/2b1P3/R1K1bP1b/2Qb3q w - - 1 2 illegal: No possible last move
K5r1/QqR3RN/1N1nnp2/5Qb1/1Bqqp3/1bN2N1p/4PP2/q2rbq1k w - - 0 2 illegal: No possible last move
5B2/3N1Kn1/pr5r/2p2p1k/1qB1rP2/5nrb/P1B1nq2/bQRB1NQr w - - 1 2 legal: proof: d4 e5 c4 exd4 h4 b5 b4 bxc4 Nd2 g5 Rb1 gxh4 Rb3 cxb3 e4 h5 Ke2 d5 Kf3 c5 Kf4 b2 Ke5 b1Q f4 a6 g4 d3 g5 h3 b5 h2 g6 d4 b6 h4 b7 h3 g7 Rh6 Qb3 Ne7 g8B Nf5 Qa4+ Nd7+ Kd5 Rb6 b8Q Qb4 e5 Qh4 e6 Ng7 e7 Qf2 Qa5 Ne5 Ba3 Nf3 Nb3 d2 Bc4 d1N Qb7 d3 Bh7 d2 Bc2 f6 Bc1 Kf7 Bb2 Bf5 Qa3 Kg6 e8B+ Kh6 Bg6 Re8 Bh5 Re4 Bd4 Bd6 Qc1 Be5 Qb1 Bg4 Qc8 f5 Qg8 Bc7 Bf6 Be5 Be7 Ba1 Bf8 Bc3 Nd4 Ba1 Nc6 Nc3+ Kd6 Ne2 Kd7 Qa5 Ne5 d1R+ Ke7 Qb4 Kf7 Rd3 Nd7 Ne1 Nf3 Rde3 Nd2 Nf3 Rc1 h1R B2d3 h2 Nf1 Bh3 Bc2 Rb3 Bg6 Ra3 Bh7 Kh5 B4b3 Ne8 Qg1 Ng7 Bg8 Nh4 Ba4 Rg3 Bd1 Nf3 Bac2 Rgg6 Qg3 Rg1 Qg2 h1R Qh2 R1g3 Qg1 Ne5+ Ke7 Rgc6 Bc4 Nf3+ Kf7 Rh6
1nnq1BbQ/K3pP1p/2B5/3b1N2/Qp1rr1R1/2k1bB1P/b6B/b2bb2R w - - 0 1 illegal: No proof kernel
4Nbn1/2prpr2/4P1bQ/N1B2bn1/1RpN1P1q/3N2qn/2brK1k1/3RQ3 w - - 0 1 illegal: No possible last move
3n1nr1/5r1q/1N2pq1q/4NRB1/1N3n2/2p3k1/RKPp2P1/r1QqbbNQ w - - 0 1 legal: proof: e4 a5 d4 g5 b4 axb4 h4 gxh4 Bc4 e5 Be6 exd4 e5 Ra7 Bg4 Ra4 e6 Ra8 Bh3 Ke7 Bg4 Kf6 e7 Kg6 Be6 fxe6 Nh3 Kg7 Ng1 Kf7 Kd2 Kg6 e8Q+ Kf5 f4 h5 a4 b5 a5 c5 a6 d5 a7 d3 Nh3 b3 Kc3 b2 Qg1 Kg4 f5 d4+ Kb3 b4 f6 d2 f7 d1Q Ra3 d3 Ra4 Ne7 Ra6 Ng6 Qh2 Rh7 Ka2 b3+ Ka3 Nc6 Ng5 h3 Qd7 h4 Qb7 Qf6 Qbc7 Nd8 Rd6 Ba6 Nd2 b1N+ Ka4 b2 Kb3 Nc3 Ka3 b1R Nf1 Ne2 Nf3 Nef4 Ng1 Ra1+ Kb3 Bh6 f8N Rf7 Nd7 Nf8 Rd5 Rc8 a8N Bg5 Be3 d2 Rf5 Be2 Qe5 c4+ Kb2 Bd3 Ng3 Bf1 Ne4 Rb8+ Nab6 Rc8 Ne2 Rb8 Qg1 h2 Nec5 h3 Nd3 Bh4 Nb4 Be1 Qc3 Kh4 Ne5 Rba8 Qa3 Rc8 Nd4 Kg3 Ndf3 Ne2 Bg5 Nf4 Qge3 Ra8 Rg1 h1Q Qeb3 h2 Qba2 Rg7 Qb1 Rg8 Qc1 Ra7 Qa2 Rf7 Qab1 Be2 Rf1 Bd3 Rf2 Bf1 Ng1 Qh5 Re2 Qh7 Re4 Qhh6 Rd4 Qh7 Rd7 Qhh6 Ra7 Qh7 Nh3 Qg1 Ra4 h1Q Ra2 Qgh2 Ng1 Q2h6 Qd1 Q1h3 Qh5 Qg4 Qh1 Qd1 Qc1 c3+
R1rN4/q3Knrp/Brp1p3/rbR4P/2n5/QRbR1N2/1b4Pq/Q2q3k w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Bb2 d5 Be5 dxc4 Bf4 gxf4 Kf2 Kf7 d4 Kf6 a4 Kg5 d5 Kh4 d6 b5 h3 c3 f6 e3+ Kf3 b3 Ke4 Kg3 Kd5 c6+ Ke5 b2 f7 c2 d7 c1Q Ke6 f3 a5 b4 a6 b3 h4 e2 a7 e1B h5 f2 Qd6+ Qf4 Bd3 f1R Bc4 Ba6 Qb4 Qa5 d8R Bc3 Nf3 Nd7 Ra4 Nh6 Ra1 Ne5 Qb5 Bg7 f8R Nhf7 Qa4 Bb5 Nbd2 b1R Nd4 b2 Ra3 Bf6 Rg1 Kh2 Rb3 Rfe1 Be2 Nc4 Qa1 Rc8 a8Q Qa7 Rd5 Rg8 Rc5 Rg7 Rg8 Rec1 Rd1 Qfc7 Bf1 Kh1 N2f3 Qh2 Rd3 Rc2 Qa3 Ra1 Be2 b1Q Rf8 Qd1 Bf1 Qab8 Kd7 Rf2 Ne6 Rb2 Nd8 e6 Be2 Bfd4 Ke7 Qb6 Qb4 Ra5 Qa3 Rb1 Qa7 Bb2 Qa1 Bdc3 Qa6 Ra2 Qa3 Qa7+ Rd7 Ba6 Rb8 Na5 Ra8 Rb8 Nb7 Bc1 Bb5 Nc4 Qb3 Ra5 Qba3 Rb3 Rd2 B1b2 Rd3 Qb6 Rfd8 Qbc7+ R8d7 Rc8 Nd8 Qb8 Rb7 Rb4 Rbd7 Bd4 Rb3 Bdc3 Ba4 Rb6 Rd3 Ncd6 Re3 Bd3 Bb5 Bf1 Ba6 Bb5 Rd3 Nc4 Re5 Nd2 Red5 Nc4 Rc5 Qa7+
1R5K/2q3p1/r1N2q1N/N2k1PP1/2pr2QQ/b1B1pr1n/2Rb4/2q1bnNb w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 e5 dxc4 g5 f6 Bh3 fxe5 Bf5 e4 Bg4 hxg4 Ke2 Kf7 Ke3 Ke6 Kf4 b5 d4 c5 h4 g3 a4 c3 a5 c2 h5 e3 h6 c4 a6 b3 f3 g2 a7 e2 h7 e1B Qd2 b4 Ra6+ Kd5 Ra1 e5+ Ke3 b2 f4 b3 f5 e4 Kf4 e3 Qe2 Qf6 Ra2 Bb7 Qg4 Ne7 Nd2 b1R Bb2 c1B Bc3 b2 Nb3 Bcd2 Na5 Na6 Rh2 Rg8 h8N Nc5 Nf7 Ne4 Rh8 Ng3 Nh6 Nf1 Qh4 Rd8 a8Q Ng6+ Kg4 Ba3 Kh5 Rd6 Qa7 Ra8 Rb8 Rd7 Qb6 Ra6 Qc7 Ra1 Qcf4 b1Q Qfg4 Qbb6 Rb2 Qc7 Rc2 Kd6 d5 Kc5 d6 Kd5 Qgh3 Rd8 d7 Nf4+ Kg4 Rc1 Q3g3 Nh3 Kh5 Rd1 Qgg4 Rh8 d8N Ba8 Nf3 g1Q Ndc6 Bdc1 Rb4 Rd4 Rb8 Qh1 Ng1 Bcd2 Ne2 Rd8 Ng1 Rf4 Qgg3 Rf3 Qgg4 Qfe5 Kg6 Qf6+ Kh7 Kd6 Qgh5 Rf2 Qd4+ Qd5 Qdg4 Qf3 Rcb2 Qd1 Ne7 Qc1 Rc2 Bh1 Nec6 Rf3 Qhh4 Rd7 Kh8 Kc5 Rb4 Rd4 Rb8 Kd5
R2N1B1r/1p3Kp1/b5Nr/nP2QQnN/1pPq4/3B3n/1N2nb2/k3b1rq w - - 0 1 illegal: manual, getting Ba6 must precede b4-b5, Rb4, a5xb4, but now Ba6 is stuck preventing white a-pawn from promotion
1r6/2p1q2p/RNrqpk1b/QP4b1/KN1R3P/n1B1R1Rb/r2nq3/4Qb2 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 bxa4 c4 dxc4 f5 g6 e5 f6 Be2 fxe5 f6 e4 Bg4 Qd3 Be6 Qd8 Bf5 gxf5 g4 Kf7 b4 a5 d4 c3 h4 e3 d5 f4 g5 e2 b5 a3 d6 f3 d7 a2 Nh3 a4 Bb2 c2 Kd2 c1B+ Kc2 e1Q Rh2 a3 Kb3 f2 Qd3 f1B Qg3 Ra6 Bc3 Rc6 Nf2 Qe2 Nd3 Bh6 Rh3 Na6 Nd2 Nb4 Qe1 Nc2 g6+ Ke6 f7 Nf6 f8Q Ne4 Nc4 Bcg5 g7 Nd2+ Ka4 Qe8 Rb1 a1Q d8R a2 g8R Na3 Nb6 Bd7 Rb3 Qd1 Nb4 a1R Rg3 Ra2 Ra8 Qf7 Ra6 Qf6 Rg7 Qfe5 Qa8 Rb8 Rd3 Kf6 Rd4 Bdh3 Rg8 Bf4 Rg4 Bfg5 Rg3 e6 Ba1 Qc1 Rbe3 Qcc5 Bc3 Qe7 Qa7 Qd5 Na8 Qeg2 Qb6 Qdd8 Qa5 Qdd6 Nb6 Qe2
3rR3/Q3NpQ1/1P2n1bp/1npn1b1r/2K5/rqQNbqBP/1Q3rk1/5R2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 f5 b5 f6 bxa4 e3 g4 Be2 exf6 Ra2 f5 Ra1 f4 Bf3 gxf3 d4 Kd7 Kd2 Kc6 Kc3 Kd5 g4 Ke4 b4 a5 b5 c5 b6 a3 h3 a2 d5 f2 g5 f1Q d6 f3 d7 f2 g6 a4 g7 a3 Qd6 Nc6 Bd2 Nf6 g8Q Nd5+ Kc2 c3 Kb3 c2 Qh6 c1R Qgg7 Na7 Qc3 Nb5 Nf3 Rc2 Be1 Qg5 d8Q Bf5 Qdf6 Qg3 Qhg7 Rd8 Qb2 Qe2 Qbc3 f1B Ne5 Qef3 Nd3 Rf2 Kc4 Bd6 Qb2 Bf4 Qfc3 Be2 Rf1 Bd1 Qcb4 Bc2 Qa5 h6 Qa6 Rhe8 Qa7 Re5 Qc3 Bg6 Qb2 Rh5 Nc3+ Kf5 Rb1 a1R e4+ Kg5 e5 Kh4 e6 a2 e7 Be3 Nb4 Bcf5 e8Q Qgf4+ Qe4 Kg3 Qed4 Kg2 Nd3 Q4g3 Rd1 Rc1 Rd2 a1N Re2 Nb3 Qde5 Ra1 Qef6 Bd4 Re8 Be3 Qd4 Ra3 Qde5 Nf4 Nd5 N3d4 Ne7 Nde6 Qec3 Nd5 Bd2 Bd4 Bf4 Be3 Bb8 Qd1 Bf4 Qgf3 Bg3 Qb3+
1Qb4R/1r2pr2/3bK1QB/N1P1b3/rnR1P3/k3q2R/ppnq4/Nr3nR1 w - - 0 1 illegal: No proof kernel
Q3r1Bb/BN3Np1/2K5/p1p4r/3rR3/b1Pbn3/P1bqQqq1/kn1N1N2 w - - 1 2 illegal: Other
n1qrbn2/2Q1pPp1/b2Nr3/p1Bq3r/1N6/1Q1RNB2/3qPb2/k1r2N1K w - - 0 1 illegal: Other
2QB4/Kq4bp/6rP/B5r1/pbn1b1QN/1R1P1B2/3n1k1p/bBr1b1Nb w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 e5 h4 b5 f4 exf4 h5 bxa4 Ra3 g6 Rah3 g5 Rh4 gxh4 Kf2 a3 e4 Ke7 g4 Ke6 h6 Ke5 g5 Kd4 b5 f5 d3 c5 g6 a5 g7 c3 b6 f3 b7 c4 e5 h3 e6 a2 e7 a1B e8B f4 Qa4 c2 Rh2 Qd7 Rh1 h2 Nh3 Ra6 Bf7 Nc6 b8B Bb7 Be2 Ne5 Re1 Nf6 g8Q Ne4+ Kf1 f2 Qg2 Rg8 Qb4 a4 Bb2+ Ke3 Qh1 c1B Bc7 c3 Nd2 c2 Ba5 Rg5 Ba2 Rag6 Nf3 Bd2 Nh4 Bg7 Rb1 c1B Ba3 Bdc3 Rb3 B1d2 Bb1 Qd5 Qf8 Nc4 Be7 Bb4 Qg1 Qd7 Qg8 Bc6 Qa8 Qb7 Qg4 Bdc3 Kg2 f1R Bed8 Rc1 Ng1 Be1 Qc8 f3+ Kf1 f2 Bd1 Kd4 Ke2 f1B+ Kf3 Bg2+ Kf4 Bh1 Be2 Rb5 Bf3 Rb6 Kf5 Rg5+ Ke6 Ke3 Qh5 Qa7 Qg4 Bb7+ Kd7 Kf2 Kc7 Ned2 Rb2 Rbg6 Rb3 Qa6 Kb8 Qb5 Ka7 Be4 Bf6 Qc6 Bfd8 Qb7+
BR6/p4n1b/knrnN1Qb/1r2b1p1/Pn3R2/Q3nP1p/QQ1q4/K1Nb4 w - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 g4 b5 b3 bxc4 Ba3 f6 Bc5 Be6 Be3 gxh4 g5 Bg4 g6 Bc8 Bg5 fxg5 a4 Kd7 d4 Kc6 Kd2 Kb7 Kc1 e5 Kb2 c5 g7 h5 b4 h3 b5 c3+ Ka2 e3 b6 e4 d5 e2 d6 e1N d7 c2 Bc4 c1N+ Kb2 h4 Qc2 h2 Qd2 e3 Qe2 h3 Nc3 Ned3+ Kb1 Na2 Bd5+ Ka6 b7 c4 Qf3 e2 Bc6 e1N Nd1 c3 Ne3 Ndb4 Qg3 c2+ Kb2 c1B+ Kb1 Bb2 Be4 Rh6 Nc2 Rc6 Nd4 Nec2 Qa3 Nh6 g8Q Ne3 Qg6 Nf7 Nge2 Bh6 Rf1 h1B Nc1 Bf3 Ne6 Be5 Bd5 Qa5 d8Q Nd7 b8Q Nb6 Qdg8 Nc3+ Kb2 Be2 Rb1 Bd1 Ka1 Nb5+ Rb2 Bf4 Qe5 Rb8 Rb1 Nbd6 Qeb2 Be5 Bh1 Rc5 Ba8 Rc4 f3 Rc3 Rg1 Rc6 Rg4 Qd5 Rf4 Qd2 Qc2 Rb7 Qgg6 Rb8 Qcb3 Bb7 Qba2 Bc8 Nf8 Bf5 Ne6 Bd3 Qg8 Bh7 Qg6 Rb7 Rd4 N6d5 Qbc3 Nd3 Rf4 Rb8 Rb7 N3b4 Qd4 Nc8 Qdb2 Ncd6 Rc7 Rbb6 Rc8 Rb5 Rb8 Nb6
kB1Q1b2/1b2NP1n/r1N1qp1p/1Q4bP/R3nrrN/5n2/1b2Kp2/1R1n3N w - - 0 1 illegal: No proof kernel
n2bn1n1/3bPNQQ/1R3B2/kB2R3/2p1K2b/2pp1r2/1RPq1r2/1n1rR1r1 w - - 0 1 illegal: No proof kernel
r2N1n2/1n1K4/1p1nRRB1/kP1rB1Q1/b2q2rp/2P3pQ/1nb1Qb2/2Q4r w - - 0 1 illegal: No proof kernel
BQQq2n1/1npN1Q2/1r1p4/bNpnB3/3bkrnP/2P1bR2/2K2Q2/1b2r3 w - - 0 1 illegal: No proof kernel
rR2n1rn/6QK/pn1p4/Q1QRP1Q1/1b2bpNB/q2P1n2/2bNr3/2k2b2 w - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 b5 f4 bxa4 b5 e5 b6 exf4 e3 c6 Bb5 cxb5 Ba3 f3 Kf2 h5 c4 f5 g4 Kf7 b7 Kf6 c5 Ke5 c6 Ke4 g5 Kd3 g6 a6 e4 b4 e5 f4 c7 b3 g7 b2 Bc5 a3 Nc3 b1N Ne4 h3 Bd6 h4 Bb4 h2 Qe1 Kc2 Qe3 a2 Nd6 h3 Ba3 Qe7 Nf5 Nh6 g8Q Nf7 Qg7 Rg8 Qb6 Nh8 Bb4 Kc1 Qa5 Qd6 Bc3 Qa3 Ne3 Bc5 Qg5 d6 Bd4 Bd7 c8Q Ba4 Bc3 Nd7 b8Q Nf6 Qbb7 Bc2 Qbg7 Ne8 Bd4 Bg6 Ng4 Bc2 Ke1 f2+ Ke2 f1R Be3 Re1+ Kf3 Re2 Qc6 Kb2 Qcc7 Nc3 Rd1 a1N Bf2 Nb3 Bh4 Na4 Qcb6 Bf2 Qbc5 Be1 Nh6 Nd4+ Kg4 Nb6 Nf3 Na4 Rf1 h1B Kh5 h2 Ng4 Bg2 Kh6 h1B Rg1 Bh3 Rg3 Bf1 Rb1+ Ka2 Rb8 Nb6 Rh3 Kb1 Rh2 Re4 Kh7 Kc1 Re2 Bhg2 Re3 Bh1 Rc3 Re2+ Rd3 Nf5 Rd5 Nd4+ d3 Bb4 Nd2 Be4+ Q5g6 Nf3 Qf5 Ng6 Qg5 Nh8+
n3b2q/RBP2pK1/5PQ1/B3n3/q1bq1pqB/5r2/1bNp1Bk1/1QR2br1 w - - 0 1 illegal: No proof kernel
R4b2/1bn2kpn/Q1b1p1N1/1P1q2r1/1QqnpK1N/4PNb1/RB1n4/4N1r1 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 f5 Bh3 hxg6 Bg4 g5 Bf3 g4 Be4 fxe4 Kd2 d5 h4 a5 b4 e6 c4 g3 f4 d3 Ke3 g2 h5 d2 c5 d4+ Kf2 a3 Kg3 d3 e3 a2 h6 a4 f5 a3 c6 Na6 h7 Qc7+ Kg4 Kf7 f6 Bb7 Qb3 d1Q+ Kg5 d2 Ne2 g1B Bb2 Bf2 Ng1 Qc8 Qa4 Nc7 Kf4 Ra5 Nf3 Rg5 Rh2 Qb3 Qb5 d1B Ne1 Qd5 Nd2 Ba4 Ndf3 Rg1 Rd1 a1N Rd3 a2 Ra3 Bb3 Ra8 Nc2 Qc5 a1N b5 Bc4 Qb4 Nb3 Rg2 Ncd4 Rh2 Kg6 f7 Rg5 Rg2 Nf6 Rh2 Nd2 Rg2 Be7 f8N+ Kf7 Ng6 Rd8 Ngh4 Rd6 h8Q Nh7 Qd8 Bf8 Rh2 Ne8 c7 Ra6 Qdd6 Ra1 Qa6 Rd1 Nd3 Rdg1 Nde1 Qcd7 c8N Q7c6 Ne7 Nc7 Qaa5 Ba2 Qb6 Qcc4 Neg6 Qe2 Rh1 R1g3 Rf1 Rg1 Nc2 Qc6 Qa6 Bd5 Rc1 Qec4 Ra1 Q6c5 Ra3 Bdc6 Ra2 Q5d5 Nce1 Bg3#
1r2r1bR/b2p1nb1/5K1B/1p1B1P1q/2Qnq2B/k1pnQ1N1/2P5/1B1n1b1R w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nd2 h4 Ne4 fxg6 Bd2 g5 Bc1 g4 Ng3 hxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 g5 f4 d3 a4 g2 h4 d2 e4 b3 f5 Kb4 a5 c5 a6 g3 a7 g4 h5 c4 h6 c3 h7 b2 Bd3 b1B Ne2 g1N Ra5 g2 Qe1 d1N Rh2 g3 Ra6 Ba2 Qf2 Nh6 Qf1 Qg5 Qf4 Qh5 Rh1 Nf3+ Kf6 g1B e5+ Nd4 e6 g2 e7 Nc6 e8Q Ne5 Bc4 Rb8 a8B Nhf7 Ng3 Nd3 Qee3 b5 Re6 Bb7 Re8 Bc6 Bd2 Ka3 Rc8 Bf3 Bad5 Be2 Qg4 Rg8 h8B Bf1 Bg7 Bf2 Bh6 g1Q Be1 Qg2 Qge2 Bb3 Re8 Qe4 Qg4 Ba4 Ba2 Bb3 Qge2 Bb4 Rc8 Re8 Bb1 Bf8 Rd8 Nc1 Qc4 Nd3 Qd2 Nc6 Qf4 Ba7 Qe3 Ba2 Ne2 Bb3 Bh4 Nd4 Ng3 Nd6 Qe1 Re5 Bc6 Ba2 Qe6 Be7+ Kg7 Bd5 Rh8 Bf8+ Kf6 Bc4 Qd5 Ree8 Qe3 Bb3 Ba8 Bc4 Qc6 Bg8 Qc4 Nf7 Bd5 Bg7+
q2Q1Kb1/5B1N/1bQNRNpp/5R1n/r2P3P/knpr4/3n1n2/3rNq1r w - - 0 1 legal: proof: g4 d5 c4 dxc4 b4 f5 b5 fxg4 d3 e5 Kd2 e4 b6 e3+ Kc3 axb6 Kb2 b5 Bd2 exd2 Kc2 b4 h4 Kd7 a4 Kc6 f4 Kc5 e4 b5 e5 g3 f5 b3+ Kc3 b2 f6 h6 f7 g2 e6 g6 a5 b4+ Kc2 c3 Kb3 c2 a6 c1Q e7 Nd7 e8N Ngf6 a7 Nh5 Qg4 d1R Nf3 g1N Bg2 Nh3 Na3 b1N Qe6 Nf2 Rf1 Nd2+ Ka4 c6 Nc4 b3 Ne1 b2 Ncd6 b1R Bd5 Bg7 f8N Bd4 Nh7 Ba6 Ra3 Bc4 Qf6 Rf8 Qe6 Rf3 Nef6 Qe8 Ka5 Ba2 Ka6 Kb4 Kb7 c5 Kc7 c4 Ra6 c3 Bb3 Bc5 d4 Rd3 Qd5 Qe4 Qc6 Qg2 Rb6+ Ka3 Bf7 Be6 Rg1 Qf1 Rg5 Qc2 Rf5 Qa2 Rb8 Qd5 Kd8 Bb6+ Ke8 Nc5 Kf8 Ncb3 Re8 Rb8 Qc7 Qa8 Qd8 Rc8 Re7 Rc4 Re8 Bd5 Re2 Ra4 Re6 Qb8 a8Q Ra1 Qc6 Qa8 Ree5 Rac1 Be8 Bg8 Re6 Rb1 Bf7 Qg1 Ng4 Rdc1 Nf3 Re1 Ngf6 Rbd1 Nfe8 Qg2 Nef6 Rh1 Ne1 Qf1
4Bqb1/3p1rbp/1R1Pp2n/1K3B2/N1B1Q2P/N2b3q/qQb2kB1/1q1nr3 w - - 0 2 legal: proof: e4 a5 b4 axb4 a4 g5 f4 c5 Qg4 f5 Qd1 fxe4 f5 Bh6 Ra3 Bf8 Rf3 b3 Rf4 gxf4 Ba3 Nc6 Bb4 cxb4 Ba6 Nb8 Bc4 Nf6 Bf1 Ng8 Ke2 Kf7 g4 Kf6 d4 Kg5 c4 Kh4 d5 b5 a5 e3 Kd3 b2 d6 b3 a6 b4 f6 f3 g5 f2 h3 Kg3 f7 e2 g6 e1Q c5 Qe3+ Kc4 Bb7 h4 Bd5+ Kb5 Nh6 c6 Bg7 f8Q Bg8 a7 e6 c7 Na6 c8B Nc5 Qe2 Nd3 Bh3 f1B Qf5 Nf2 Na3 b1Q Qe4 b2 Ba6 b3 Bf5 Qf8 Rh2 Rc8 a8B Qa2 Bd5 b1B Bab7 b2 Bc4 Bc3 g7 Bc2 Rh1 Qf3 Qd2 Kg2 Ne2 Nd1 Qc1 b1Q+ Qb2 Bd4 Nc3 Kf2 Na4 Qh3 Rg1 Rc6 Rg3 Be2 Rb3 Bed3 Ba8 Bf7 g8B Bg7 Ka5 Rc8 Rb6 Rc5+ Kb4 Re5 Bad5 Qh1 Kb5 Qh3 Qg4 Re1 Qe4 Bh5 Bf7 Rg8 Be8 Bf7 Kb4 Rh8 Bc6 Bg8 Kb5 Bf7 Ba8 Qe7 Bc6 Rf8 Qg4 Bg8 Bg2 Rf7 Qe4 Qf8
b1n2rrb/2QqqPpp/n3NnN1/K1Qb4/QQb1RR2/p6P/1B6/n6k w - - 0 1 illegal: Other
br4rQ/2p1Rb2/N3N1NP/QpbkBq2/q1R1n3/NK4n1/2P1p2r/b1r5 w - - 0 1 illegal: No possible last move
2b5/1bb1qq2/nRB1pkn1/p3nNR1/rr1Q1N1p/4p1Pq/2QKP2R/1R6 w - - 0 1 legal: proof: d4 b5 a4 bxa4 h4 g5 d5 gxh4 d6 f6 Bg5 cxd6 Bc1 d5 Bf4 d4 Be5 fxe5 f4 Kf7 c4 h5 b4 d5 f5 e4 b5 h3 b6 h4 b7 a3 f6 d3 c5 h2 g3 a2 c6 d2+ Kf2 Na6 Qc1 d1N+ Ke1 Ne3 b8Q Nc4 c7 Ne5 Qc2 e6 Nh3 d4 Kd2 d3 Nc3 Ne7 Qb6 N7g6 Nd1 Qe7 Rb1 a1Q Bg2 Bh6+ Ne3 Bf4 Qbc5 Re8 Rb6 Qf1 Qd4 Rf8 Rg1 h1Q Bf3 Bb7 Bh5 Rfb8 c8R Qh2 Nf2 Qhh3 Rc5 Bc8 Rg2 Rb7 Rb1 Rb4 Rh2 Bb7 Rb5 Bc8 Rb6 Bb7 Kc3 d2 Nd3 d1B Kd2 Qf3 Qcc5 Ba4 Qc2 Bh6 Nf4 Bd7 Nf5 Bdc8 Ne3 Kg8 f7+ Kg7 f8R Bg5 Nd3 Qff7 Rg8+ Kf6 Rg7 Bf4 Rg8 Nf8 Rg5 Ng6 Ke1 Rb8 Nf5 Ra4 Kd1 Bd2 Nf4 Ba5 Rd6 Bc7 Rdb6 Nc5 Kd2 a5 Qcd3 Na6 Qc2 Ba8 Rd6 Rbb4 Rb6 Nf8 Bg6 Bab7 Bh5 Qg7 Be8 Ng6 Bb5 Qgf7 Bc6 e3+
Bknq2r1/4Q1R1/2n2K2/2pN2r1/bpQ2pP1/r1P1Q3/1pbRQn1B/2b3q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 f6 h4 Nc3 gxf6 Nce2 f5 Ng3 hxg3 Bh3 f4 Bg2 Rh3 Bf1 Rh8 Ke2 Kd7 d4 f5 h4 b5 a4 c5 d5 Kc7 c3 e5 h5 g2 h6 e3 Kf3 b3 h7 b2 a5 b4 a6 e2 a7 e1R Rh2 Ne7 Nh3 g1Q Bg2 Bh6 Qe2 Rg8 h8Q Nbc6 d6+ Kb7 Qh7 Bd7 Qf7 Nc8 Qfc4 Rd1 Qe3 Rd5 Bd2 Be8 d7 Kc7 Be1 Bg6 Bg3 e4+ Ke2 Re5 Kd2 f3 Nf4 f2 Nd5+ Kb7 Rd1 Bg5 Rh7 f1B Bh2 Bd3 Bf3 Bc2 Rg7 Ba4 Ke2 Bh6 Rd2 Bf4 Qed4 e3 Kd3 e2 Qe3 Qe7 d8Q e1N+ Ke2 Qd7 Qe7 Nd3 Bh1 Bh7 Kf3 Nf2 Bg2 Bg5 Kg3 Bf4+ Kh4 Bg6 Qee2 Be3 Be4 f4 Bh1 Bf5 Kg5 Bfc2+ Kf6 Qc7 Rd3 Bc1 Rd2 Rg5 Q7e3 N8e7 Bg2 Qd8 Bh1 Rb8 a8Q+ Kc8 Qa7 Ra8 Qd7+ Kb8 Bg2 Nc8+ Qde7 Nd4 Nb6 Ra6 Ba8 Nc6 Nd5 Bb5 Rd4 Ra3 Rd2 Bba4
n1b5/2q1qr2/k1Kb2Bp/r1pN1p1p/PBR4r/nRPB1Q2/2B3Qn/5q2 w - - 0 1 legal: proof: h4 d5 f4 e5 b4 exf4 c3 a5 h5 axb4 h6 gxh6 Ba3 h5 Bc1 d4 Na3 d3 Nc2 dxc2 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 d4 c5 a4+ Ka6 g4 b5 g5 b3 d5 b4 d6 f5+ Kd5 f3 e4+ Kb7 d7 h6 e5 b2 e6 b1N e7 f2 e8B b3 g6 b2 g7 Qc7 d8Q Rh7 Bg6 Na6 Ra3 Bd6 Bd3 f1Q Qf3 Kb6 Nh3 Nf6+ Kc4 Ka7 Kb5 Ng4 g8B Nh2 Nf4 Rf7 Rb3 Qe2 Qf8 Qee7 Nd5 Kb7 Qg7 Ka7 Bd2 c1Q Re1 Kb7 Re4 Qf1 Bc1 Ka7 Rc4 Kb7 Qd4 Ra7 Qdg4 Ra8 Nb6+ Ka7 Qgg2 Na3+ Ka5 b1R Bb2 Qc6 Nd5 Nc7 Bc2 Rd1 Bc1 Rd4 Bd3 Nab5 Ba3 Rh4 Bb4 Na3 Bc2 Qcd7 Bd3 Kb8+ Kb6 Ra5 Bc2 Qdd8 Kc6 Ka7 Bd3 Ka6 Bc2 Qa1 Rf4 Rf8 Ne3 Qf1 Bc4+ Ka7 Re4 Rf7 B4d3 Na8 Rc4 Ka6 Nd5 Qdc7+
K1n3b1/p1B2bQ1/1Rp3qp/1r1R4/2r2P2/BqP2n2/Qp2Bn2/B2rk1bN w - - 0 1 illegal: No proof kernel
1N4B1/bK2pb2/1P2b3/1rQbR2R/kn1rP3/p1pqR3/1RpB2nb/1n5Q w - - 0 1 legal: proof: f4 b5 g4 g5 a4 bxa4 c4 gxf4 Nc3 d5 Ne4 dxc4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kd7 b4 Kc6 e4 Kb5 h4 f5 d4 c5 d5 a5 d6 g3+ Kf3 g2 g6 a3 h5 a4 h6 a2 g7 a3 h7 Ra4 d7 Nh6 g8R Bg7 Rb1 a1N Bb2 Bd4 Rf8 Ng4 Qb3 Nc6 Re1 Ne3 Ne2 g1B Bc3 Ng2 Bd2 c3 Rh5 c4 Rh4 c2 Rg8 c3 Rh5 Bh2 Rgg5 Ba7 Qb1 Re8 h8Q Nb3 Qd4 Ra5 Qg1 Ka4 b5 Nb4 Nd4 Bb7 b6 Bd5 Bc4 Rb5 Nc6 Rh8 Kf2 f3 Re3 f4 Re5 Rh6 Qbf1 Rd6 Nb8 Be6 Qh1 Rd4 Bd5 Bf7 Qc4 Be6 Qc5 Bf7 Kf1 f2 Ke2 f1B+ Kf3 Bc4 Be6 Qc8 d8R Qa6 Rg8 Bd5 Rgg5 Na5 Kg4 f3 Kf5 f2 Re1 f1B Re3 Be8 Bf7 Bfc4 Bg8 Ne1 Rg1 Ng2 Rb1 Nb3 Rb2 Bd7+ Kg6 Bf5+ Kg7 Bd7 Kf8 B7e6 Ke8 Bf7+ Kd8 Bde6+ Kc7 Bcd5 Bc1 Nd2 Qd1 Nb1 Bd2 Ra5 Qg1 Qd3 Qh1 Ba2 Kb7 Rb5 Rhg5 Bab3 Rh5 Bbd5+
Qrn5/1K1pNb1r/3bB1nR/7p/1n1RNp2/1b1RPpQr/nR5P/4qk2 w - - 0 1 illegal: No possible last move
2bN1n1r/3pp1Kr/pn1P4/1R1n1p1Q/3r3N/P2R2R1/1qQbBk2/2b3nR w - - 1 2 legal: proof: e4 h5 f4 f5 g4 hxg4 c4 fxe4 b3 b5 f5 bxc4 f6 Kf7 Ba3 Ke6 f7 Kd5 Bb2 Kc6 Bf6 gxf6 Ke2 Kd5 Ke3 c5 Kf4 Kd4 Kf5 g3 Kg6 c3 h4 a6 b4 e3 h5 f5 h6 e2 b5 e1R d3 Ke3 d4 c2 a3 c1N h7 c4 b6 g2 d5 c3 d6 c2 b7 Na2 Nf3 g1N Bg2 c1B Nd4 Nc3 Nd2 Nc6 b8R Kf2 Ne6 Re4 Bf1 Bh6 f8R Nd5 Rb5 Ncb4 Nf3 Rd4 Nh4 Qb6 Nd8 Ngf6 Qc2+ Bhd2 Kg7 Qb8 Re8 Nb6 Rg8 N4d5 Ra2 Nc7 Ra1 Nfd5 Be2 Qb7 Rh3 Rb8 Rd3 Ne6+ Kf7 Nf8 Rgg3 Rg8 h8Q Rg6 Qh5 Rh6 Rg7 Qc7 Rg4 Qc3 Kg7 Qb2 Rgg3 Nh3 Qg5 Ne6+ Kg8 Bb7 Kf7 Ra8 Nc6 Rah8 Nb4 Bc8 Nc6 Nf8 Qg6 Qb3 Qg5 Bb2 Rh1 Ng1 Kg7 Bbc1 Nd8 Qb2 Qh5 R6h7+
qr2B1KB/5QPp/2ppN3/r2q1Qb1/1r2B1bP/r1p4k/1r1R1B1n/2N4n w - - 0 1 legal: proof: b4 a5 c4 axb4 a4 g5 f4 gxf4 d4 d6 c5 Kd7 d5 dxc5 d6 Ke6 d7 c4 Ra3 Kf6 Rd3 Ke6 Rd6+ exd6 Na3 Kf6 Nb1 Ke7 Kf2 Ke6 Kf3 Kf5 h4 b5 e3 b3 g3 b2 a5 b4 a6 c3 a7 b3 Bb5 Ne7 Nd2 b1R Ne4 b2 Ng5 Nbc6 Ne2 Bh6 Ne6 Bg5 Rh2 f6 Qf1 Nd4+ Kg2 Kg4 e4 f5 e5 Rb8 a8B Nf3 Be3 Ra1 Ba7 b1R Nc1 Ra3 Be4 Rb2+ Bf2 Qe8 Ba4 R8b4 d8B Rf8 Bd7 c6 Bb6 Qd8 Bd4 Qa5 Be8 Qd5 Nd8 Rg8 e6 Rf8 Bh8 Rg8 Rh1 Nh2 Qb5 Ra5 Rd1 Bd7 Rd2 f3+ Kg1 Kh3 g4 f4 Kh1 Nf5 e7 Rb1 Ne6 Ng3+ Kg1 Nh1 Qc5 Bf6 g5 R1b2 g6 Bg5 g7 Ra3 B8g6 Rga8 e8Q R8a5 Qf7 Rb8 Nc7 Bg4 Ne6 Qb3 Qcf5 Qd5 Bc5 Ng3 Kf2 Nh1+ Ke1 R2b4 Kd1 f2+ Kc2 f1R Bf2 f3 Bh5 Qe5 Kd3 Rg1 Bg6 Rg2 Bh5 Be7 Ke3 Qd5 Kf4 Bd8 Q7f6 Be7 Kg5 Bd8 Be8 Be7 Bb6 f2 Ba7 f1Q Bf2 Bd8 Qe7 Qfc4 Kf6 Qa6 Kf7 Qa8 Qd7 Bg5 Kg8 Rg1 Qa7 Re1 Qaf7 Re2 Rd1 Rc2 Rd2 Rcb2
1R1R4/2pbp1nq/2QR2N1/1b4Bp/2nPPR1Q/1p1krB2/1br5/1q1b1K1b w - - 0 1 illegal: No proof kernel
B1K5/p2b1pB1/P2k4/2b3r1/RR3rNp/1B1q1b1B/1rP1p2Q/nQq1bn2 w - - 0 1 illegal: No proof kernel
R2rqq2/5nQ1/1k2b1n1/RqN3p1/p2r4/Np2P2n/p1nb1BP1/NNQ2K2 w - - 0 1 illegal: No proof kernel
1q1R2qb/NNpK2n1/2rRpk1q/2nqr3/Q1P5/1BpbPb2/5Q1p/Q5Q1 w - - 1 2 legal: proof: g4 d5 h4 a5 b4 axb4 c4 d4 g5 f6 Ba3 fxg5 Bc1 gxh4 Bb2 h3 Bc3 dxc3 f4 Kf7 Kf2 g5 Kg3 h5 d4 b5 a4 g4 a5 h2 d5 b3 f5 b2 Kf4 b4 Ke5 g3 f6 h4 d6 b3 e3 g2 a6 h3 a7 Nh6 d7 Ng8 Be2 Bg7 Na3 b1B Nf3 g1Q Nd2 b2 Qa4 Na6 Bd1 Bb7 Nb3 Bf3 Nc5 Rh6 Bb3 Bh8 Nb5 Bd3 Nb7 Nc5 Rd1 b1Q Rd2 Qg7 Rhd1 h1Q Qa1 Rc8 a8Q h2 Q8a4 Qdf8 Na7 Re8 d8Q Rg6 Q1a3 Nh6 Qa1 Qfg8 Qdd7 Qg2 Qg4 Nf5 Qg3 Qh6 Qg5 Bc2 Rd8 Ng7 R1d6 Qgh1 Qg1 Bd3 Bc2 Qb5 Bb3 Qg2 Na5 Qb8 Nb7 Ne4 Kd5 Qgg5+ Kc6 Nc5+ Rd5 Ke6 f7 Qf5 f8Q Qe5 Qf4 Qeh5 Qfg3 Kf6 Kb5 Qf5 R5d7 Qfd5 Q3f2 Rg5 Rd6+ e6 Qgb1 Re5 Qh1 Re7 Qhg1 Rd7 Ra6 Qe4 Rb6 Rdd5 Kc6 Na6 Qgg3 Rc5+ Kd7 Qd5+ Rd6 Rc6 Qgg1 Nc5+
n3r3/1qp2b1q/1kPp4/5BbR/2q1Q1nN/2qQr3/1prPpKB1/Q4RQ1 w - - 0 2 legal: proof: f4 a5 g4 g5 b4 axb4 e4 f5 Bb2 fxe4 f5 Ra6 Be5 Ra5 Na3 Ra8 Nc4 h6 Bf4 gxf4 g5 h5 Ne5 Rh7 Ng4 hxg4 Ba6 Rh6 Bf1 Rh8 a4 e5 h4 b5 c4 b3 f6 d6 g6 Kd7 h5 Kc6 h6 g3 f7 f3 g7 e3 c5 b2 h7 b1Q a5 e2 a6 g2 a7 e4 Qc1 b4 Rh6 b3 Rh5 Nf6 g8Q Qd7 Ra5 Be7 f8Q Ng4 Qc4 Bg5 Qf5 Re8 h8Q Qh7 Qd3 Be6 Ra3 Nd7 Ra6+ Nb6 Qg7 Bf7 Nh3 g1Q Ra5 Qd4 Ng1 Qc3 Bg2 Rab8 Ra4 Na8 Ra1 Rb4 Qg8 Rc4 Qe6 Kb7 c6+ Kb6 Qeg6 Ne5 Kf2 e1R Qf5 Re3 Qa3 Qbb2 Rf1 Rc5 Qa1 Qb1 Nh3 Qbb2 Nf4 Rc4 Ng6 Ng4+ Kg3 Qb1 Nh4 f2+ Qf3 Re1 Qg6 e3 Qfe4 Re2 Rc1 f1Q Qg8 Qff5 Rf1 Qb5 Qg7 Rc5 Qgd4 Re1 Kf3 Qbc4 Kg3 e2 Qg1 Rc1 Kf3 Rc2 Kg3 Kb5 Kf3 Rce5 Kg3 Nb6 a8B Qbb2 Bb7 Na8 Bc8 R5e7 Qef3 Re3 Bf5 Kb6 Qe4 Q3b4 Qd3 Q2c3 Qe4 b2 Qd3 Nf6 Kf2 Qbb5 Qde4 Qa6 Qd3 Qb7 Qfe4 Ng4+
r1r2n2/r1QPR1rn/3p3B/p5NQ/bqB2R2/3pb1K1/pk1P3b/4Bb1B w - - 0 1 illegal: Other
B1k5/1Nrp2n1/2Rb4/1qbPQ1nR/1P3r1p/NQ3b1R/1pKn3p/n1b3R1 w - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 e5 b5 e6 bxa4 b3 c4 Nf3 c3 Bb2 cxb2 Ng1 fxe6 Qc1 e5 Qd1 e4 d4 e5 Kd2 a5 c4 h5 f4 h3 g4 e3+ Kc3 e4 b4 h2 c5 h4 g5 e2 c6 e1B+ Qd2 a3 g6 a2 f5 a4 c7 a3 f6 e3 g7 e2 Kb3 Nc6 Kc2 Bf2 Nc3 e1B Bd3 Nce7 Be2 Nf5 Nb5 Ngh6 g8Q Ra7 Qdg5 Nf7 Nh3 Bb7 c8R Bf3 Rc6 Ng7 Nf4 Qb6 Qe5+ Kd8 Nd3 Ng5 f7 Rc7 Rg1 Bd2 Nc5 Bc1 Nb7+ Kc8 Bf1 Rh6 Bg2 Rf6 Bh1 Qa6 Rg3 Rf4 Rh3 Bd2 Rg1 a1N+ Kd3 Nb3 Kc2 a2 Na3 Qb5 Bg2 Ne8 Bh1 Bc5 f8R Bg3 Rf5 Bc1 Bg2 Nd2 Qb3 Ng7 Bh1 Nh7 Rh5 Ng5 Qf5 Qe2 Na5 Bd5 Rb6 Rf3 Ra6 Bgd6 Qe5 Rf4 Bf3 Bc4 Ba8 Bd5 Nb7 Qb5 Rc6 Bf3 d5 a1N+
n2b1B1r/1b1B3P/2B1ppQR/Q1n2B2/2n2pr1/q5p1/pkNNPrK1/4b3 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 g6 g5 gxf5 Ra3 f4 Rg3 Qc7 Rg2 Qd8 Rg4 hxg4 Kf2 a5 c4 d5 h4 Kd7 h5 Kd6 b5 Kc5 g6 Kb4 g7 f6 c5 e6 b6 g3+ Kg2 a3 h6 a4 b7 d3 c6 a2 h7 a1B c7 d4 Rh4 a3 Nd2 Kc3 Qa4 a2 Ba3 Ne7 g8B Nd7 b8Q Nc5 Rh5 Nd5 Qaa7 Qd6 Rg5 Nb6 Bb4+ Kb2 Qa5 Be7 Kh3 Bd8 Ngf3 Bb7 c8B Ra7 Ne1 Na8 Bd7 Qe7 Ne4 d2 Bf7 d1N Bfe8 d3 Kg2 d2 Rg6 Qd6 Rh6 Ne3+ Kh1 d1R Nc2 Nc4 Kg2 Rc1 Bc6 Qd3 Nd2 Qa3 Qbc7 Rb1 Qg7 Re1 Bd7 Rd1 Ne4 Rd3 Qg6 Rf3 Nd2 Rf2+ Kg1 Kc1 Kh1 Bc3 Bh3 Kb2 Kg1 Nc7 Bf5 Na8 Nf3 Be1 Nd2 Na4 Bf8 Nc5 Bc8 Ba6 Kh1 Rg7 B8d7 Bb7 Kg1 Rf1+ Kg2 Rgg8 Qf7 Rg4 Qg6 Rf2+
q2k4/1K1bbn1b/p3p2Q/1QQ2pnr/npp1P2r/1P5R/2N1RB2/5QqN w - - 1 2 illegal: No possible last move
3R1N2/pKnr4/Nqpp2p1/qNb2p2/3PbP1n/7k/NQ2Q1R1/1r1n1Bq1 w - - 1 2 illegal: No possible last move
b6r/1b4Pp/1bq2p2/K1Nkn1R1/1Q1pR1BP/n4pp1/1R1q2N1/r1r1QR2 w - - 0 1 illegal: No proof kernel
6kn/1NP3p1/1Npr1q1n/RN4Q1/qr2p1P1/2nNK1pB/p3b2B/Q2bb3 w - - 0 1 illegal: No proof kernel
Q4Q2/7p/2p1p3/2B1Q1R1/nQp1q1b1/1pB1rR1K/bbPn1qrP/1N2kq2 w - - 0 2 legal: proof: e4 a5 b4 axb4 f4 f5 Qg4 d5 Bc4 dxc4 Nc3 g6 Nd5 fxe4 f5 g5 Nf4 gxf4 Qh5+ Kd7 Qd1 Ke8 Kf1 Kd7 a4 Kd6 d4 Kd5 g4 b5 Kg2 c6 a5 f3+ Kh3 e3 a6 Ke4 f6 f2 a7 f1Q+ Kg3 b3 g5 b4 f7 e2 d5 b2 d6 b1B g6 b3 g7 Nf6 g8Q Na6 d7 Nc5 Bf4 Bg7 f8B Qe8 d8Q Bg4 Bg5 Na4 Q1d2 Ba2 Q8d6 Bh5 Q2b4 Rd8 Qdc5 Rd3+ Nf3 Re3 a8Q e6 Rb1 Qf7 Rg1 Qg6 Rg2 e1Q+ Kh3 Qef2 Bh4 Kf4 Re1 Ne4 Bf6 Nd2 Bc3 Qe4 Rd1 Rd3 Qe5+ Ke3 Bc5+ Ke2 Qgf8 Re3 Rc1 Rg8 Rb1 Qh1 Rg5 Bf6 Rbg1 Bh8 R1g3 Qb1 Ng1+ Ke1 Ne2 Rg6 Rf3 Bf6 Rf5 Rg2 Rg5 Qd1 B3d4 Bh8 Nc3 Qde2 Nb1 Qef1 Qeb8 Be5 Ba1 Bb2 Qe5 Bc1 Bad4 Bb2 Bc3 Bg4+
N2krq1B/6p1/4pprn/r1B2bP1/2QB2pK/1r3p2/1PR5/1Bbr1RQn w - - 0 1 illegal: No proof kernel
b4b1k/pBQn1p2/Q1p2R2/nn2p1Rq/1Bp5/1rr1nn1N/1K2P2P/1B1B4 w - - 0 1 illegal: No proof kernel
1n4N1/kr1N2pN/5pP1/K1Nbbp1Q/P4pB1/n1r1n2r/RQ1prq2/6R1 w - - 0 1 illegal: No proof kernel
1bQr2b1/RKnn1k2/QqN1pp2/BNp1P2n/prP3p1/N7/8/Nr2B2n w - - 1 2 illegal: No possible last move
Kr2q3/bpQ2Brn/1Pp2Bb1/3bB1R1/1Pkb3p/B3Q3/n1Np2p1/5nN1 w - - 0 1 illegal: Other
1n1nBnk1/1r3p2/B1r1P1rp/2bb2Q1/1p1pnB2/1p3K2/NR1R1P1B/1q3Q2 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 h4 axb4 d5 g5 Nc3 gxh4 Nb5 e5 Nd4 exd4 g4 b5 e4 c5 Ke2 h6 a4 c3 e5 b3 a5 h3 e6 c2 a6 c4 a7 h2 g5 Ne7 d6 Qb6 g6 Bb7 g7 Rg8 Nh3 Nec6 Be3 c1R Ng1 Nd8 Ra2 Bd5 d7+ Ke7 Rb2 Kf6 Bd2 Bc5 Bf4 Kg6 Bg3 Kh7 Bf4 Qb7 Qe1 c3 Rd2 b4 Qd1 c2 Qe1 Ndc6 d8B Qc7 Bh4 Nd8 Bhg3 Qa5 Qd1 Qa1 Qe1 Qb1 Qd1 Nbc6 Qe1 Rc8 a8B Nb8 Bc6 Rc7 Ba4 Rb7 Be8 Bc4+ Kf3 Bd5+ Kg4 Bc6 Ne2 Bd5 Rg1 h1N Bh2 Ng3 Nc3 Ne4 Ba6 Rf8 Qe2 Kg8 Rh1 Rg1+ Kf3 c1N Rb2 Rg6 Rd1 Nd3 Qf1 Ne5+ Ke2 Ng4 Na2 Ngf6 Kf3 Nh7 Rd3 Ndc6 Rdd2 Nd8 Beb5 Re8 Bd7 Re7 Be8 Rec7 Qe1 Rg5 Rd1 Rc6 Qf1 Nf8 Rd3 Kh7 Rdd2 Kg6 g8Q+ Kf6 Qh8+ Kg6 Qf6+ Kh7 Qf5+ Rg6 Qg5 Kg8
brNnB2r/4bRQ1/1q4Rp/1K1p1p2/2p2P1N/1pP2pR1/3Rpkrn/2Q5 w - - 1 2 illegal: No possible last move, all moves rejected
Rr2R3/r5nr/1N5b/3BPbBk/p1RbbP2/nN2pr2/4R3/R3q1K1 w - - 0 1 legal: proof: g4 b5 a4 d5 axb5 g5 c4 f5 h4 fxg4 e4 gxh4 Qf3 d4 Qe3 dxe3 d3 e6 d4 Bb7 d5 exd5 cxd5 Bc8 b4 Kf7 f4 Kg6 e5 c5 d6 h5 b6 a5 b7 a4 b5 c4 d7 c3 b6 h3 Nf3 g3 Ra2 c2 Rh2 g2 Ng1 h4 Ba3 c1B Ke2 Kh5 Rd2 Nc6 b8R Na7 b7 Nf6 Rd5 Nb5 Nd2 Ne8 Rd4 Ng7 Rc4 Ra7 Ngf3 g1R Nb3 Bb2 Ra8 Bd4 b8R Rg3 Bg2 Qa5 d8R Bf5 Nfd2 Rf3 Be7 Na3 Re8 Rg8 Rh1 h2 Bg5 h3 Ra1 h1B Rb6 h2 Ke1 Rh3 Bd5 Bhe4 Kf1 Rf3+ Kg2 h1R Rbb4 Rh4 Kg1 Rhh3 Rc2 Rh8 Nc4 Rh2 Rf2 Rh7 Rfa2 Rb2 Nb6 Rb1+ Nc1 Rb2 Rc4 Rb3 Re2 Qe1+ Kg2 Rb5 Nb3 Rb4 Nd7 Rb8 Nb6 Ne6 Kh2 Bh6 Kg2 Ng7 Kh2 Qd2 Kg1 Qe1+
1n2nn2/1N3Nrn/1r2B3/1q3PP1/nR2nB2/1qb5/kBrb4/B1n1B1KR w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 g5 d4 f5 h4 gxh4 d5 b5 d6 bxa4 Qc2 Bb7 Qd3 Bd5 exd5 Bh6 Qe2 Bf8 Qe4 fxe4 b4 Kd7 f4 c5 Kf2 e5 g4 h5 b5 a5 f5 h3 b6 h2 b7 a3 Ne2 c3 Bb2 c4 Nd4 h4 Nb5 a2 Kg2 c2 Bc3 c1R Bd2 e3 Be1 a4 Bb4 h3+ Kf3 a3 Bg2 c3 Na7 e4+ Ke2 c2 Rd1 h1Q Bc5 h2 Nb5 Nf6 N1c3 Qe8 Rd4 Bg7 Na7 Rh6 Nc8 Ra7 Rb1 a1N Bh3 a2 Bf1 Nb3 Ba3 a1N Ra4 Nc5 Bg2 Nab3 Ra5 Ne6 Bb2 Nbc5 Nb5 Na4 Ra1 Nf8 Ra2 Qg1 Be5 h1N Ra1 Nf2 Bb2 Qh1 Ra6 Qh3 Rb6 Qe5 Rb1 Ne8 Ba1 Qb2 Bf1 Bc3 g5 Ng4 Bg2 Ngf6 Bf3 N6h7 Bh5 Bd2 Bf7 Rg6 Bg8 Rg7 Bf7 Ra6 Be6+ Kd8 d7 Bc3 Ncd6 Ke7 Rc6 Rb6 Nf7 Qb3 Nbd6 Qb5+ Rc4 Qg3 Nd8 Bd2 N6f7 Bc3 Nh8 Kd6 Rb4 Ke5 d6 Qh3 Bg8 Qg3 Nhf7+ Kd5 Rb1 Rd1 Bb2 Rd2+ Kf1 c1N Ba1 Qf3+ Kg1 e2 Rcb4 e1N Bb2 e3 Ba1 Nc6 b8B e2 Nb7 Rc2 d8B Ned3 d7 e1B Bf4 Nb8 Bf6 Ndc5 d8B Ne4 B6e5 Bcd2 Beb2 Qb3 Bdc7 Bc3 Bg3 Bed2 Be1 N4f6 Rh4 Ne4 Rh1 Kc4 Bf4 Nf2 Nfd8+ Kb4 Be6 Ne4 Nf7 Q3d5 Bfg3 Kb3 Bf4 Qdc4 Ba3+ Ka2 Rb4 Qcd5 B3b2 Qb3
2B2qbR/2K1Pq2/NBb2r1N/qr1RN3/3nPN2/7n/rbk1p1n1/1N3r2 w - - 0 1 legal: proof: h4 e5 f4 a5 e4 g5 b4 gxh4 d3 axb4 Qd2 c6 Qe3 c5 d4 cxd4 fxe5 dxe3 Ke2 Ke7 Kd3 Ke6 Kd4 b5 g4 f5 c4 h5 a4 d5 a5 b3 g5 e2 g6 f4 c5 b4 a6 b2 g7 h3 a7 h2 c6 f3 c7 f2 Ra2 h4 Nd2 b1Q Rc2 b3 Ngf3 h3 Ba3 b2 Bc5 Ne7 g8N Qe1 Bb4 b1R Kc5 d4 Kb6 d3 Nh4 Bb7 Rb2 Ng6 Nhf3 Nh4 Bd6 Ng2 Nf6 Rh6 Bc5 Bg7 Nd7 Qf8 c8N Rf6 Bb4 Nc6 Rb3 Nd4 Ba5 Bc6 Kc7 Qf7 Rc3 Rb5 Nb1 d2 Ng1 d1B Rd3 Bb3 Bb6 Qa5 Nd6 Bh8 Nf5 Bbd5 Nf3 Bb3 Ne1 Bc4 Rg1 h1Q Nh6 Qh2 Rh1 Qf4 Rd2 h2 Nd3 Qf3 Nb4 Qfa3 Nd5 Qaf8 Rd1 Nf4 Bg2 f1R Bf3 Ng2 Nf4+ Ke7 e6 Ba2 Rg1 h1N Ne5 Nf2 Bg4 Nh3 Rd2 Rf5 Rh1 Kf6+ e7 Kg5 Rc2 Rf6 Rc5 Bb3 Rd5 Bg7 Nfg6 Bh8 Bc8 Bc4 Nh4 Kf4 Nhg6+ Ke3 Nf4 Bg7 Na3 Kd2 Nb1+ Kc2 Rh2 Rb8 a8N Rb2 Rh1 Ra2 Nhg4 Ng1 Rh8 Nh3 Nh6 Qc5 Ba5 Rb5 Bb6 Qa3 Kb8 Qa4 Nc7 Qa5 Na6 Qg6 Rd7 Bg8 Kc7 Qgf7 Rd5 Rg6 Nhg4 Nf5 Ned3 Bb2 Nh6 Rf6 Ne5 Nd4
2BNn1n1/n3k1n1/n3b2N/2RbpP1P/1NN1r3/2q3bn/4NB2/1KRn2b1 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 b4 axb4 f5 c5 Qe2 cxd4 g5 b5 Qf3 Ra6 Qg4 Rf6 gxf6 hxg4 Kd1 d5 c4 g5 Kc2 e3 h4 b3+ Kb2 e2 a4 e1N a5 d3 h5 d4 a6 g3 a7 d2 a8N d1N+ Ka3 b4+ Ka4 d3 c5 b2 Kb3 g4 Ka2 d2 c6 g2 c7 g3 Nh3 g1B Nb6 g2 Bc4 b3+ Ka3 Na6 Rh2 Nc2+ Ka4 Nf2 Be2 d1N Bg5 Be6 c8N Ne4 Nd2 b1B Be3 b2 Bf2 Nd4 Ka3 Qc7 Ndc4 Nd6 Nf4 Be4 Ka2 b1N Nbd5 Na3 Rc1 Nab5 Nb4 B4d5 Kb1 Na7 f7+ Kd8 Rh3 Ne8 Rhc3 Bg7 f8N Be5 Bf1 Qa5 Ne2 Bg3 N8d6 Qa3 R3c2 Qc3 Ra2 Rh6 Ra5 Rg6 Rc5 Rg4 Ne3 Re4 Ng4 B1h2 Nc4 g1N Bg2 Nh3 Nh6 Bg1 Bf3 Bc8 Bh1 e5 Ne6+ Ke7 Nd8 Ne6 Bf3 N6g7 Bh1 Rd4 Bf3 Bce6 Be4 Ba8 Bb7 Re4 Bc8 Bad5
2kr3q/pN1R1r1P/n3n3/5R1q/r2N1p1r/PNb1N2B/KBq2n2/q4N2 w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 f5 d4 f3 c5 b6 Kf2 bxc5 Ke1 cxd4 Bg2 d3 Bh3 Nf6 Bf1 Ng8 Na3 h5 Qc2 Bb7 Nb1 Be4 Qc4 f4 Qe6+ Ne7 Qf5 Ng8 Qg5 Bf5 gxf5 Bd6 Qh4 Bf8 Qg4 hxg4 Kd1 c5 e4 d5 b4 Kd7 h4 g5 h5 d4 h6 g3 b5 g4 b6 f2 f6 g2 e5 c4 e6+ Kc8 e7 g3 e8N c3 f7 c2+ Kd2 Bg7 f8N Na6 Rh5 Ne7 Nh3 g1Q Ne6 g2 Bb2 Nd5 Kc1 Ndc7 Nc5 Ne6 Nb3 Qh2 a3 g1R Rb5 Rg6 Ra2 Rf6 N1d2 Rf7 Rf5 Qg5 Bg2 Qh5 Nf1 Rb8 Ra1 Rbb7 Ra2 Rbc7 Ra1 Rc4 Rb1 Ra4 b7+ Kd8 b8N Kc8 Nc6 Bf6 Bc3 d2+ Kb2 d1N+ Ka2 c1Q Bb2 d3 Ncd4 d2 Ra1 Qc2 Nd6+ Kd7 Nb7 Kc8 Ne3 f1R Ng5 Nf2 Rd1 Rh1 Bh3 Rd8 Ne4 Bg7 Ng3 Bh8 Rg1 d1Q Ngf1 Bf6 Rg7 Qe1 Nf3 Bc3 Nfd4 Qec1 Bg4 Q2h4 Bh3 Qf6 Rh7 Qh8 Rg7 Rh2 h7 Q1d1 Bg4 Rh4 Bh3 Rff8 Re7 Rf7 Rd7 Qa1+
1b1Bn2R/3n4/1p6/R4bpb/1R1Br1NN/1rpqPK2/r1kP4/R2R2rn w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Na3 f5 Nb1 f4 Qc2 Qf6 Qg6 Qd6 g3 Ra3 Bg2 Ne7 Bf3 gxf3 g4 Qd8 g5 Ra4 Qe4 Ra5 g6 Ra8 Qc2 Ng8 g7 Be7 Qd3 Bf8 Qg6 hxg6 Kf2 Kd7 a4 Kd6 h4 Ke5 a5 Kd4 h5 f5 h6 c5 d6 b6 a6 c4 a7 c3 e3+ Kd3 d7 g5 h7 b3 Rh6 b2 Re6 Bd6 Ra6 Kc2 Ra1 Nf6 g8R Ne8 Ke1 f2+ Ke2 f1B+ Kf2 f3 Re4 f4 Rb4 Be2 Rf8 Bd1 Kf1 f2 Kg2 f1R Nf3 Rg1+ Kf2 Rg8 Nh4 Bh5 h8R f3 Rf5 Rg6 Rfa5 Re6 Na3+ Kd1 Rc5 b1R Nc4 Rb3 Ba3+ Kc2 Ra5 Re4 Ne5 Bc7 Rf1 Bd6 Ng4 Bh2 Ke1 f2+ Ke2 Bg3 Re1 f1N Kf3 Bf4 Rd1 Ng3 Ng2 Nh1 Nh4 Qc7 d8B Bf5 Bf6 Nd7 Bd4 Rc8 a8R Qc4 Rbb5 Bb8 Be7 Qd3 Rb4 Rc7 Bd8 Ra7 Raa1 Raa3 Ra5 Ra2
1RNNr1K1/1r6/1Nn4N/k1npBP2/1b1qq3/4pP1r/p3qN2/3RrBn1 w - - 0 1 legal: proof: h4 b5 d4 g5 a4 bxa4 f3 gxh4 Qd3 c5 Qe4 cxd4 Qe6 Bb7 f4 Bf3 exf3 f5 Qe4 fxe4 Ke2 e5 c4 h5 g4 d5 b4 Kd7 g5 Kc7 c5 a5 f5 a3 g6 d3+ Ke3 a2 c6 Kb6 b5 d2 g7 d1Q c7 a4 c8N+ Ka5 b6 a3 b7 h3 Nc3 h4 Bb2 h2 Nb6 h3 Bg2 Ra7 Bc1 Qh4 Nce2 Na6 b8N Rb7 Ng3 Nc5 Bb2 Ne7 g8N Nc6 Rc1 a1Q Bf1 a2 Rb1 Bd6 Nh6 Re8 Nc8 Qg4 N1e2 Bf8 Rg1 h1N Nd7 h2 Ndb6 Nf2 Nh1 Nh3 Nf2 h1R Nf4 Rh2 Rh1 Ng1 Ne6 Rh3 Nd8 Qc2 Rd1 Qab1 Rh2 Qg7 Rg2 Qh8 Rg8 Qc4 Kd2 Qe2+ Kc3 e3 Ba1 Qf6 Rh8 Qh4 Bb2 e4 Ba1 Ne7 Kd4 Qbd3+ Ke5 Qd4+ Kd6 Nc6+ Ne7 Nd3 Ke6 Nc5+ Kf7 Qed3 Bg2 e2 Bf1 e1R Kg8 e3 Nec8 Qd4e4 Be5 Qe2 Rh7 Qd4 Rd7 Qhe4 Rd6 Rbe7 Rd7 Rh7 Rb7 Rhe7 Rb8 Rb7 Kh8 Be7+ Kh7 Bf8+ Kg8 Nd7 Kh8 Bb4+ Kh7 Re6 Kh8 Nc5 Kg8 Re8#
N3K3/r4r2/nrPk3N/N1N1n1N1/pp2rB2/pn1bRB2/1pr3P1/R3b3 w - - 0 1 illegal: No proof kernel
NnRb3r/3b1p2/1Kr1BR1R/n1R2P2/3k1BbN/R1qP3n/3br1n1/3q3q w - - 0 1 legal: proof: h4 d5 c4 dxc4 b4 a5 h5 axb4 h6 e5 d3 e4 Kd2 e3+ Kc2 gxh6 Bb2 h5 Qd2 exd2 Bc1 h4 g4 Kd7 a4 Kd6 f4 Kd5 e4+ Kd4 a5 d1B+ Kb2 b5 a6 c5 e5 h5 f5 b3 Ka3 b4+ Ka4 c3 Kb5 c4 a7 b2 g5 c2 e6 b3 e7 c3 e8R h3 g6 h4 g7 h2 Bf4 c1B Bh3 c2 Ra5 Nf6 g8R Bg4 Re7 Bd2 Ra1 c1R Ra2 Rc7 Bd6 Bd7+ Kb6 Nh5 Re5 Be7 Rf8 Qc8 Raa5 Bd8 Ra3 Nf4 Bb4 Ng2 Nc3 b1N Rc5 b2 Ra6 Na3 Na4 b1Q Nf3+ Ke3 Rg8 Qd1 Rg6 Re8 Rf6 Rh8 Bc3 Re8 Be5 Rh8 Rg1 h1N Bd6 Nf2 Rh1 Nf4 Bf1 h3 Bg2 h2 Nh4 N2h3 Bd5 Ng2 Bf4+ Kd4 Bb3 Re8 Raa5 Re2 Be6 Nb5 Ra6 Nd6 Raa5 Nb7 Ra6 Qc2 Ra1 h1Q Ra3 Nc6 Rh6 Rb8 a8R Qcd1 Kb5 Nba5+ Nb6 Be7 Rf6 Qh8 Rh6 Qe5 Rf6 Rh8 Rc8 Bd8 Na8 Nb8+ Rc6 Qd5 Rh6 Qc4+ Kb6 Qc3 Bb3 Qhe1 Rcf6 Qh1 Be6 Rc6+
1Rrr1qk1/Kb3N2/q1P2pB1/2RR1qb1/R2bnP2/3bBqR1/1r1n2N1/2n5 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Bd2 e4 Be3 hxg6 Qd3 exd3 Bf4 g5 Bc1 g4 Kd2 g5 a4 d5 h4 b5 f4 g3 e4 b3 c4 b2 e5 g2 a5 b4 a6 g4 a7 b3 e6 g3 e7 Nf6 h5 Nbd7 c5 Nb6 h6 Rb8 a8R Nc4+ Ke1 d2+ Ke2 d1R c6 d3+ Kf3 d4 h7 d2 Be2 d3 Na3 b1Q Rh5 b2 Nc2 Ne4 Rh1 f6 Na3 Kf7 e8R Bh6 Rh5 Bg5 Ra5 Bb7 Nh3 g1B Nc2 g2 R1a4 Bd4 Rg8 Qf8 Ne1 g1Q Rd5 Qf1+ Nf2 Na5 Ng2 Nb3 Rg6 Rg8 h8R Qc2 Rc5 b1N Rd5 Rd8 Rc5 Re1 Rd5 d1B Be3 d2 Rc5 Bh6 Rhd5 Nc1 Rgg5 Qd3 Rg3 Bc2 Bd1 Rc8 Be2 Qa6 Bd3 Qh1 Nh3 Re2 Ng5+ Kg7 Bb5 d1Q Nf7+ Bg5 Bc4 Qh7 Bd3 Nec3 Bg6 Ne4 Kg4 Rd8 Kf5 Bd3 Ke6 Rc8 Kd7 Rb2 Bg1 Qf3 Be3 Rd8+ Kc7 Nbd2 Rb4 Qc4 Kb6 Qh3 Ka7 Qf5 Rh5 Rh8 Ra4 Kg8 Rh1 Ne2 Rha1 Nc1 Rb4 Ba6 Rb8 Bb7 Ra4 Qb5 Rc8 Qa6+ Kb8 Rh7 Nd6 Qb5 Ka7 Rc7 Rb8 Rcc8 Nf7 Qa6+
1nB1b1BB/1npR1N1N/k3KqR1/1q5B/nq3q2/2P2Pr1/rn2B1b1/3r2b1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 d5 f5 Qd4 e6 e5 exd5 Qf4 d4 Qe4 fxe4 Ke2 d5 g4 Kd7 a4 Kc6 g5 Kb6 g6 h5 g7 h3 f3 h4 a5+ Ka6 e6 b5 e7 h2 e8B b3 Bh5 h3 Nc3 b2 Be8 b1Q Nd1 e3 Kd3 e2 Nb2 e1Q Bf4 b4 Be3 b3 Na4 b2 Ne2 Qb4 Bc6 Nf6 g8B Bc5 Bg5 Bd7 Be3 Ne4 Nf4 Nd6 Ne6 Be8 Nc3 Qf6 Be2 Nb7 Rd1 h1Q Nd8 h2 Nf7 Rh3 Ne4 Rg3 Neg5 Ba7 Rd2 Qhc1 Nh7 h1B Bh6 Bb6 Bg7 Bg2 Bh8 Bc5 Rd1 Qcf4 Bd7 Ra7 Bc8 Ra8 Rd2 Qf1 Bg4 b1N Bh5 Nc3 Rdd1 Na4 c3 Kb5 a6 Bb6 a7 Ka6 Rd2 Qfb1+ Rc2 Q1b3 Rd2 Q3c4+ Kc2 Qcb5 Rh1 Bc5 Rh4 Bb6 Rg4 Bc5 Rg6 d3+ Kd1 d4 Kc1 Nb2 Kb1 Bb6 Ka2 Na4 Rd1 Q4a5 Ka3 d2 Ka2 d3 Ka3 Qd7 Kb3 Bd4 Kc4 Qab6 Nd6 Bg1+ Kd5 Qde7 Nf7 Qeb4 Re1 d1N Rf1 Ndb2 Rd1 Nc6 Rd2 Qd8+ Ke6 Q6b5 Rd1 d2 Bf1 Rc8 a8B Nb8 Be2 Qdd4 Ra1 d1R Rc1 Rf1 Rd1 Rd8 Rd3 Ra1 Rd1 Qg7 Rd2 Ra2 Rd7 Na5 Be4 Nb7 Bf5 Qgf8 Re7 Rd3 Rd7 Rd1 Kf6 Qfc5 Rd2 Qfc4 Bc8 Qf4+ Ke6 Qcg5 Rd7 Qgf6+
q1qR2R1/B1p1R1RB/2Pn2N1/2bp1n2/2N1Rn2/4r2r/P1brb2k/bK3b2 w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nh3 h4 Ng1 fxg6 Qd2 g5 Qd3 g4 Qg3 hxg3 Kd1 Ke7 c4 Kf6 Kc2 Kf5 f4 d5 h4 b5 e3 g5 c5 b3+ Kb2 b4 h5 g2 h6 g3 c6 Kg4 e4 d3 h7 d2 f5 d1B f6 Ba6 e5 Nh6 f7 Bg7 f8R Nd7 Be3 Nf6 e6 Ne4+ Rf6 Nd6 Kc1 b2+ Kd2 b3 Nc3 b1B Kc1 Qc8 e7 Bbc2 e8R b2+ Kd2 b1Q Rfe6 Qbb7 Nh3 g1B Kc1 g2 Bd2 Kg3 Re2 g4 Be3 Bb5 Nb1 Ra3 Re1 Qba8 Ba7 Bc5 Rd8 g1N Nf4 Nh3 Rg1+ Kh2 Bd3 g3 Nd2 g2 Re7 Bgd4 Rb1 Ba1 Rb4 Bg4 Bf5 Re3 Rbe4 Bf1 Bg6 Nhf5 Nc4 Re8 h8R Rg8 Rh5 Rh8 Rg5 Rh5 Bh7 Bgd1 Ne6 Nf4 Nf8 Rhh3 Rg8 Bfd3 Rf1 g1R Re1 Rg2 Rg1 Rge2 R1g7 Rd2 Ng6 Bg4 Bb6 Bf1 Ba7 Bcd1 Kb1 Bge2 Ref7 Bb3 Rfe7 Bc2+
1rNn1b2/1b1rR1b1/pB1b1nRR/1qb1p3/N1R5/PrR1P1Kn/7p/4kB2 w - - 0 2 legal: proof: h4 d5 g4 b5 c4 b4 g5 dxc4 g6 fxg6 h5 gxh5 Qc2 h4 Qb3 h3 Qc3 bxc3 d4 Kf7 b4 Kf6 f4 Kf5 Kf2 Kg4 b5 e5 d5 h5 f5 c5 f6 g5 f7 a6 d6 h2 b6 c2 d7 c3 b7 h4 Nh3 c4 Bg2 Rh7 Nd2 Qe8 d8R Qb5 Bf1 Nf6 Ne4 Nc6 b8R Bb7 Rd1 Nd8 Rc8 Rb8 Bf4 c1R Rd4 c2 Rd5 c3 Rd3 Rb1 Bg3 c1B Re3 c2 Ng1 h3 Bf4 Bca3 Rec3 c1B R8c4 Bad6 a3 Rb3 Be3 Kh4 Bb6 g4 Rb1 g3+ Kf3 Bg7 f8R g2 Re8 Bch6 Re7 Bf8 Kf2 Rf7 Rd1 Bhg7 Rdd3 Kg4 Rg3+ Kh4 Re8 Re7 Rg6 Rd7 Re7 Kh5 Nf3 g1B+ Kg3 Be3 Ne1 Bec5 Kf3 Kh4 e3 Ng8 Nd3 Nf6 Rhg1 h1N Nb2 h2 Na4 Nf2 R1g3 Nh3 Kg2 Ng5 Rh3+ Kg4 Rhh6 Bc7 Kh1 Kf3 Nd6 Nh3 Nc8 Kf2+ Bg2 Nc6 Bf1 Ke1 Kg2 B7d6 Kg3 Nd8
1q2B2N/Nb2PNB1/p3p3/kn1q2qR/qNr5/2bK1R2/r1pbP1n1/N4q2 w - - 0 1 illegal: Other
1BN2KbR/R1P1n2B/Bqr1n2B/1n2p3/1bp1P1n1/1kqb4/p3r2N/3rB3 w - - 0 1 illegal: No proof kernel
b2qqB1n/2rN2RK/4b1b1/1BR2PRR/1prR1p1q/1k2b1N1/1P1np3/4n3 w - - 0 1 illegal: No proof kernel
n1q2k1r/b7/2b1p3/2KN2P1/nn2B1Np/1R1b1p2/r2RPrBq/B2n2BB w - - 0 1 illegal: No proof kernel
3qn1R1/3nb1B1/Kpq3p1/2N2bbr/1rBBpq1k/BP1R4/1PN5/B5bq w - - 0 1 illegal: Other
RK1k3r/4N1r1/2p1b1p1/2Np1r2/1q3n2/bNPqP2B/2NB1qp1/2r1R1Nn w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nh3 h4 Ng1 fxg6 Qd2 g5 Qd3 g4 Qg3 hxg3 Kd2 d5 Kd3 b5 f4 c6 h4 b3 a4 b2 a5 g2 f5 g3 a6 b4 a7 b3 c3 Qf6 h5 Bb4 e3 Ne7 h6 Be6 h7 Ng6 Bd2 Nd7 Na3 b1R Nc2 b2 Ra4 Rc8 a8N Rc1 Nb6 b1Q Nc4 Kd8 Na5 Ba3 Nb3 Qf8 Ra5 Nf6 Ra8 Ng4 f6 Rb8 f7 Nf2+ Ke2 d3+ Kf3 Qb4 f8N Qa2 Nd7 Nf4 Ndc5 Rf8 h8N Rf5 Ng6 Qb2 Ne2 g1R Bh3 Rg2 Re1 Nh1 Ng1 Rc8 Ne7 Qa2 Re2 Qb2 Be1 d2 Kg4 d1Q Bd2 Qf1 Re1 Qd3 Kf3 g6 Kg4 Rh2 Kf3 g2 Kg4 Rf7+ Kg5 Rh7 Kf6 Rg7 Ke5 Rb8 Bg4 Rh5+ Kd6 Rf5 Bh3 Qbe4 Nba1 Qbb4 Nb3 Qf3 Nca1 Ke8 Kc7 Qf2 Nc2 Kf7 Ra4 Rh8 Ra5 Ke8 Ra6 Qbc4 Kb8 Kd8 Ra8 Qb4+
q3rr2/BK2NP2/NNp1q1bp/R2n1p2/3N2pk/8/1p2b2P/1nbq1BRN w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 f5 e6 g5 f6 Qc2 fxg5 f6 g4 Qf5 exf5 Kf2 Kf7 Ke3 Kg6 d4 Kh5 a4 b5 a5 g5 d5 h6 Kd4 c3 e4 g3 d6 c2 Kc5 b3 a6 b4 e5 g4 e6 b2 e7 g2 e8N b3 a7 c6 Ra3 Nd7+ Kd4 Ne7 Kc4 Ne5+ Kc5 Bd7 Nc7 Kh4 Kb6 Nd5+ Kb7 Nc4 Ne2 g1Q Ng3 Be8 d7 Bg6 f7 Nd2 Na6 Qe3 Nc3 b1B Ra5 Ba3 Rg1 Qe6 Nh1 Re8 Bb2 Rc8 a8N c1Q Nb6 Bd3 Ba1 Be2 Bb2 Nf6 Ncd5 Nb1 Bd4 Qd1 Ne7 Bc1 Bc5 b2 Bd4 Rf8 Bc5 Qe8 d8N Nd5 Be3 Qe5 Ne6 Qd8 Nd4 Qe6 Nb8 Qdd6 Na6 Rce8 Bf4 Qd8 Bb8 Bd3 Ba7 Bc4 Nb3 Be2 Nd4 Qa8+
1n4nq/1kqb2nR/7P/1K4qR/2Nq3R/r1rBnN1N/B3P2R/n1q5 w - - 0 1 legal: proof: d4 a5 b4 b5 f4 e5 a4 exf4 axb5 c5 b6 cxd4 b5 Qf6 Qd2 Qd8 g3 f5 Qd1 h6 Qd2 f3 Ba3 f2+ Kd1 f4 Bd6 f3 Bb4 Bd6 Qg5 Bf4 gxf4 axb4 f5 hxg5 Kd2 d5 Kd3 Kd7 h4 b3 c4 b2 b7 Kc7 h5 g4 f6 g5 h6 g3 c5 g4 c6 g2 f7 g3 f8N Bf5+ Kd2 d3 Kc3 d4+ Kb4 d2 Ra7 d1Q Na3 b1Q+ Kc5 d3 Nh7 d2 Nh3 g1Q Nf6 g2 Nh7 Qb2 Nc4 Qdc1 Rh2 d1N Ra5 Ne3 N7g5 Nc2 Ra7 Na1 Ra4 Qd7 b6+ Kd8 Rb4 Ra3 Kb5 Qbd4 Ra4 Qc7 Ra5 Qh1 Ra7 g1Q Bg2 f1N Ra4 f2 Nf3 Qc8 c7+ Kd7 Ra7 Ng3 Ra5 Qe8 c8B+ Kd8+ Bd7 f1N Ra4 Qe7 Be6 Ne3 Bd5 Rc3 Be4 Qed6 Bd3 Nh5 Ra5 Qc7 Ra7 Nc6 b8R+ Kd7 b7 Ng7 Re8 Nb8 Re4 Rh7 Rh4 Ra3 Bf1 Qg5 Bg2 Qcc3 Rh5 Qhc1 Ra4 Nc6 b8R Rh8 Rc8 Nb8 Re8 Rh7 Re4 Kc8 Reh4 Kb7 Ra6 Ne6 Rc6 Rd7 Rc5 Ng7 Re5 Rd6 Re7 Rc6 Rf7 Ne6 Rh7 Qh8 Nfd2 Ng7 Bd5 Qd4 Be6 Ne8 Nf3 Ng7 Nce5 Rc2 Ba2 Rcc3 Nc4 Bd7+
NrKb4/3P2RN/R5bk/R2Pb3/1r1p1np1/1n2BN1q/RrB3b1/4n3 w - - 0 1 legal: proof: f4 h5 b4 c5 d4 d5 a4 b5 g4 hxg4 axb5 a5 c4 axb4 cxd5 e5 d6 exf4 d5 Nc6 Qd3 Nb8 Qd4 cxd4 Kd2 f5 Kd3 Kf7 Kc4 Kg6 Kc5 g3 h4 g2 e4 f3 e5 f4 h5+ Kh6 e6 g5 e7 f2 e8N g4 b6 b3 b7 b2 Ba6 f1N Nf3 g1B Rh2 Nc6 b8R Be7 Rg2 Nh2 Bf1 Nf6 Na3 b1R Rb6 Rb4 Rga2 Rb8 Ra6 Bf5 Be3 Bg6 Bd3 Na5 Bc2 Nb3+ Kc6 Bf2 d7 Bg3 Nc4 Rf8 Nh4 Nf3 Nb6 Ne1 Na8 Qa5 Nf3 Qa3 Kc7 R8b7+ Kc8 Bd8 Ng5 f3 Ra5 f2 Nf3+ Bf4 Ra6 f1B Ra5 Kh7 h6 Nh5 Ra6 Bg2 Nf6+ Kh8 h7 Kg7 h8R Be5 Ra5 Nf4 Rg8+ Kh6 Nh7 Qc1 Bg1 Qe3 Rg7 Qd3 Be3 Qf1 Nh2 Qf3 Ra6 Qh3 Nf3 Nd2 Rb1 Rb2 R2a5 Nb3 Rba1 Rf6 R5a4 Rfb6 R4a5 Rb4 R1a2 Rb8#
q1B1N3/1p3n2/1P1qRNp1/rNnNP3/1n2Kb2/n4B2/3r2rR/Bk5r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 cxd5 e5 b5 exf4 Qb3 Rh5 Qb4 Rh8 e3 axb4 d3 c5 Kd2 c4 Ke2 c3 Ke1 Bf5 a3 bxa3 Bg2 Be4 Bh3 Bf3 Bf1 Bd1 Bg2 Bb3 Bf1 Bc4 dxc4 Qe7 Ra2 Qd6 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 h4 Ke5 c5 f5 c6 g3 b6 a2 e4 c2 d6 g6 h5 f3 h6 f4 h7 g2 c7 f2 c8B f3 d7 Bd6 Rh4 Ra5 Rh3 Nh6 Nd2 Na6 Rh2 Nc5+ Ke3 Nf7 Bd3 f1R Be2 f2 Bf3 Rd1 Nh3 g1R Nf4 f1Q Nd5 Rg2 Rb1 Qe7 d8N a1N Ne6 Qa6 Ng7 Qa8 Ne8 Qc7 Ba3 c1N Rb3 Na2 Bb2+ Nc3 Rb4 Rh1 Rd4 Nb5 Bc3 Rg8 h8N Na3 Bb2 Qd8 Bc3 Bc7 Bb2 Qd6 Bc3 Nab3 Ba1 Rg7 Rc4+ Nd4 Rc1 Bb8 Re1 Rg8 Ndf6 Rg7 Nb1 Rh7 Nc3 Nc6 Re2 Nb4 Re1 Rb2 Ree2 Rd1 Ncd5 Rd2 Kf2 Kd4 Kg2 Ng5 Nf7 Kd3 Kf2 Kc2 Ke3 Rh8 Re1 Rg2 Re2+ Kb1 Kd4 Qe6 Nfd6 Nf7 Nb5 Rd2+ Ke3 Nd6 Rh4 Nf7 Rh5 Rg1 Re5 Rhh1 Rh2 Qd7 Re6 Bg3 e5 Rgg2 Rh6 Qd6 Rh2 Ncd3 Kd4 Bf4 Ke4 Nc5+
1n1nk3/K1rb3p/2R2B2/2n5/5bq1/PBN2Np1/P1R1pBrr/R3rR2 w - - 0 1 legal: proof: h4 c5 e4 g5 d4 gxh4 g4 a5 c4 d5 e5 a4 Qb3 a3 Qg3 hxg3 bxa3 cxd4 cxd5 f6 Ke2 fxe5 Ke1 e4 Ke2 e5 f4 b5 d6 d3+ Ke3 b4 f5 d2 f6 d1R g5 b3 g6 b2 g7 Ne7 g8R Bd7 Rh2 Rd2 Rf2 Qc8 Rg6 Ra5 Ba6 Nec6 Re2 Nd8 Nc3 b1R Nf3 Rc2 Bb2 Re1 Bc4 Ra7 Bg8 Rc7 Bb3 Rh1 Bc1 Rh2 Rf2 Rb2 Rc2 Rg8 Bd2 Bg7 Be1 Bh6+ Ng5 Rg7 Bf2 Re7 f7+ Kf8 Kd2 e3+ Kd3 e4+ Kd4 e2 Nf3 e1N Rf6 e3 Rg6 Bb5 d7 Nd3 Rc6 Nc5 Kd5 Re6 Kd4 Ke7 f8R Ba4 Kc4 Bf4 Kb4 Rg2 Ka5 Re4 Kb6 Re5 Rcc1 Re2 Rf1 Re1 Rff6 e2 Rfd6 Rg5 Rd2 Rh5 Rb2 Rhh2 Rc2 Ndb7 d8B+ Ke8 Ka7 Qg4 Bf6 Bb5 Rb6 Bd7 Rc6 Nd8+
3b3q/B2nBR1K/1PNq3P/3b4/n2BR3/1N2B1Rq/r5r1/qnrn1n1k w - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 g5 g4 h6 f4 Qd3 f5 Qd7 Qf3 Qd8 Qf4 gxf4 g5 h5 Be2 Qd6 Bd1 Qd8 Bg4 hxg4 Ke2 Kf7 d4 e5 b4 a5 h4 c5 d5 g3 f6 Kg6 d6 Kf5 b6 Kg4 f7 f3+ Ke3 g2 b7 Kg3 h5 a4 b5 a3 h6 f2 d7 f1N+ Ke2 e3 b6 a2 g6 c3 Kd3 c2 Ke4 e2 Kf5 e1Q g7 c4 Kg6 e4 Ba3 c1Q Bb2 c3 Nd2 e3 Ndf3 e2 Rb1 a1Q Ba3 c2 Nh4 Ne7+ Kh5 Nd5 Kg6 Qf4 g8R c1R Rg7 Rg8 Bb2 Nc3 Nhf3 Ra2 Ba3 Be7 f8B Na4 Rb4 Qec3 Ne5 e1N Ngf3 g1N Nd2 Kg2 Nb3 Ne2 Re4 Qh3 Bb2 Nc2 Nc6 Na3 Bd4 Qd6+ Kh7+ Bg5 Rf7 Nec3 Bfg7 Nd1 Be3 Nb1 Bgd4 Qe8 d8B Nd7 b8B Bb7 Be7 Qd8 Nca5 Bd5 Rg1+ Kh2 Rg2+ Kh1 Ba7 Bh4 Nc6 Rg4 Rgf2 Rg2 R2f3 Qe8 Rg3 Bf6 Bf8 Bd8 Be7 Qh8+
rkr1N2q/1q2rPB1/R3BK2/5q1q/b2n1qN1/3P1b1n/N6B/1rnRB3 w - - 0 1 illegal: No possible last move, all moves rejected
3Rn1R1/1b1b1n1q/nPb2r1k/3B3N/1R4r1/1R1NqnqN/1P3b1r/1B5K w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 g5 b5 axb5 f3 Be3 h6 Qd3 g6 Qf5 gxf5 g6 f4 Bf2 Be7 Bh4 Bf8 Bg5 hxg5 Kf2 f5 e4 d5 h4 a5 c4 a4 b6 a3 h5 a2 c5 d3 h6 d2 g7 Kf7 h7 Kg6 e5 d1Q e6 g4 e7 d4 e8N d3 c6 d2 c7 Nh6 g8B Qd6 Ne2 g3+ Kg1 g2 Nc1 f2+ Kh2 g1N Nc3 Qe2 Nb5 d1N Nc3 Bd7 c8R Nf3+ Kg2 Nf7 Rh2 Qe3 Ne4 Ra4 Ng7 Na6 Nc5 Nc3 N5b3 Ne4 Rc3 Nf6 Rc8 Ne8 Be2 f1R Nh5 Kh6 Rb1 a1Q Rb8 Bg7 Na5 Bd4 Ncb3 Rb4 Rc1 Qb1 Nc4 Rf2+ Kh1 Rg2 Bd1 Qg6 Be2 Qg3 Nd6 Rc4 Rc8 Rc6 Nb5 Rf6 Rh4 Qc3 Bd1 Ng1 Na3 f3 Ra8 f4 Rb8 f2 Nc2 f3 Re4 Nd8 Nc5 Kg6 Ne3 Qbd3 Rh4 f1B Ng4 Be2 Ng7 f2 Rc8 Bf3 Bc2 Bfc6 Bb1 Nf3 Re1 Bb7 Re3 f1B Nf2 Qf5 Nh3 Bfb5 Rd3 Bf2 Rb4 B5c6 Rb8 Qd2 Rdb3 Qe3 Nd3 Nd6 Be6 N8f7 Bc4 Rg8 Bd5 Kh6 h8R+ Qh7 Rd8 Ne8 Nh5 Rg4 Rg8 Rh2#
1NK2R2/N1r1B3/1bq1q1B1/nn5r/Pq1nP3/1rB1q1r1/k5BR/N4r1q w - - 0 1 illegal: No possible last move, all moves rejected
2RN3N/Br1bb3/1prq1R2/P4Bk1/4B3/B1bb1P1q/3N1b2/1rnKq2n w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Qf3 fxe4 Qa3 bxa3 g4 Kf7 d4 Kf6 a5 h5 d6 c5 d5 e5 d7 h3 d6 c4 Ne2 c3 Nd4 b6 Nd2 a2 Nf5 h4 Nb1 c2 Ne7 h2 Bd2 c1R+ Ke2 e3 Bb4 h3 Nd2 e4 Nf5 Rh7 Rg1 h1B Rb1 a1B Ne7 h2 Nc6 Bc3 Bh3 Na6 Ne7 Kg5 Rb3 Nc5 Nb1 Nd3 Rb2 Nf6 Nd2 Nh5 Ba3 Rb1 Rc1 Ng3+ Kd1 Rh6 Ng6 Rb8 Rc2 Rb7 Nh8 Be7 Rb2 Qf8 d8B Bd7 Bc7 Rf6 Bb8 e2+ Kc2 e1B Ba7 e3 Kd1 Bd5 f3 h1Q Rb4 Rh6 Rf4 Bc4 Rf6 e2+ Kc2 Bdb5 d7 Bf2 d8N e1Q Bd6 Qe6 Ba3 Qh2 Kd1 Ba4+ Nb3 Bd7 Nd2 Rb2 Rc2 Nh1 Rc1 Qe3 Rc2 Kh4 g5 Nc1 g6 Bd3 g7 Rb1 g8B Kg5 Bf5 Qh3 Bd5 Rg6 Rf7 Rc6 Bde4 Bd4 Rc4 Bc3 Rc5 Rd6 Rc8 Rc6 Rf6 Qfh6 Rf7 Qd6 Rf6 Qe1#
r4k2/bKbq3q/nBR1P2r/2n3n1/P7/1B1R1N2/q3q1Rp/2RrNbN1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Qb3 exf4 Qa3 bxa3 Kf2 f5 Kf3 b5 e4 c5 d4 h5 g4 c4 g5 h3 e5 b4 d6 c3 e6 b3 g6 c2 d5 h4 g7 a2 Rh2 b2 Rh1 h2 Be2 h3 Be3 c1R Bd3 Rh6 Bf1 Nf6 g8R Qd7 Na3 b1Q Ba7 Ne4 Rg3 Ba6 Bd3 Ng5+ Kf2 f3 Ke3 f4+ Kd4 f2 Bc4 f1Q Kc5 f3 Nc2 f2 Ne1 Rd1 Rg2 Qe2 Bb6 f1N Bb3 Qbh7 Rc1 a1B Rc2 Be5 Rc4 Ng3 Rc3 Qa7 Rd3 Bfg7 d7+ Kf8 d8N Bc7 d6 Bd4+ Kd5 Bb5 d7 N3e4 Nf7 Na6 Ne5 Qa2 Rc3 Bf1 Kc6 Bc5 N5f3 Bf2 Ba5 Qe3 Bb6 Qee2 Kb7 Be3 Ba5 Ba7 Bb6 Qe7 d8R+ Qe8 Rdd3 Qd7 Ne5 Nh7 Ngf3 Nhg5 Rhg1 h1Q Rc6 Qh2 Rh1 Qf4 Ng1 Qf5 N5f3 Qfh7 Rhh2 Qe3 Rgc2 Qe2 Rg2 h2 Rc1 Nec5+
3Nq1br/Bnrq2qP/n4K1k/5B2/rn3bbP/1Np1B1B1/2R5/1R3b1R w - - 0 1 illegal: No possible last move
1bBn1n1k/3P1bN1/KN4p1/1Rr2B2/1B1n2qr/P1q2rqb/4RN2/2B2q2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Qc2 exf6 Qb2 f5 Qa3 f4 Qg3 fxg3 e4 f5 Ke2 Kf7 Kd3 b5 h4 c5 a3 f4 h5 c4+ Kd4 f3 d6 f2 Kc5 b3 d4 b4 Kb5 g6 h6 b2 e5 c3 d5 c2 d7 b3 h7 Kg7 e6 Nh6 d6 Nf7 e7 Qc7 d8N Ra5+ Kb4 Rc5 e8B Nd7 Nh3 g1N Bc4 f1Q Bg5 c1Q Nc3 b1R Ba6 g2 Na4 b2 Rh2 Ne2 Nb6 g1Q Nf2 Nd4 Bf4 Qc2 Bc1 Qg4 Bd3 Qb8 Bf5 Qc3+ Ka4 Qc7 Rh5 Be7 Ra2 Nf8 Bed7 Bg5 Bde6 Bf4 Rg5 Ra1 Bd7 b1B Re2 Ba2 Ne6+ Kh6 Ng7 Nd8 Bde6 Rb1 Bd7 Bf7 Bde6 Rb3 Bd7 Bb7 Bc8 Bg2 d7 Bh3 Re5 Rg8 h8B Kh7 Re4 Qcg3 Re2 Rf3 Kb4 Qe5 Ka4 Qf6 Kb4 Bb8 Ka4 Nb5+ Ka5 Qc3+ Ka6 Nd4 Be6 Rc4 Rb5 Rc5 Bf5 Q4h4 Ne6 Qhg4 Be5 Rg7 Bd6 Kh8 Be7 Rh7 Ng7 Rh4 Bd6 Rc6 Bb4 Rc5
bN2Rr2/3N1b2/NB2prb1/1n3B1P/1qr2N2/1k2r1n1/1P2B2r/bnR2K2 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 bxa4 g5 cxd4 Qd3 e6 Qe4 fxe4 e3 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Bd3 g4 Bb5 Qf6 Bf1 Qd8 h4 Ke7 c4 Kd6 f6 Kc5 f5 Kb4 c5 d5 c6 a5 c7 g5 f7 a3 f8N g3 f6 a4 f7 e3 Nd7 a2 f8N e2 Nh3 g2 Na3 g1R Nf4 d3 Rh2 d4 Nb1 d2+ Kf2 d1B Rg2 e1R Nh5 d3 Rh2 g4 Nhf6 d2 N6h7 a3 Nhf6 Bb7 c8B Re3 Bd3 Nc6 Nh5 Bc2 Ba6 d1B Bb5 Qa5 Ng7 Kb3 Bd3 Nge7 Ne8 Nd4 Ng6 Nd5 Nd6 Qb4 Ba6 Nb5 Ne4 Ndc3 Ngf8 Rf1+ Kg2 g3 Nb8 Bd3 Nfd7 Bh5 Bd2 Bc6 Bcb7 Bf7 h5 Rc8 Rh1 Rf6 Rc1 Rc7 Kg1 g2 Be1 Bd5 Bf2 Rc4 Bc6 Rg3 Bb6 Re3 Ng5 Bc2 Nh3 Bcg6 Nf4 Bde4 Kf2 g1N Kf1 Nge2 Bcb7 Bh1 Be4 Bf3 Bf5 Be4 Nc6 Rf8 Ncb8 Ba8 Nd2+ Ka4 Nd5 Nb1 Ne4 Kb3 Nf4 Ng3+ Kf2 Rd4 Rc8 Rc4 Re8 Nd2 Rb1 a1R Rc1 a2 Kg1 Rb1 Kf2 a1B Nec5+ Ka2 Rc3 Rh1 Rc1 Rh2+ Kg1 Na3 Bb5 Ndb1 Nca6 Rd4 Be2 Kb3 Be4 Nb5 Bf5 Rh3 Kf2 Rc4 Kg1 Rh4 Kf2 Rh2+ Kg1 Ne4 Kf1 Ng3+
1q4n1/2bB1RB1/3bq3/1q3P1B/b1Nb2p1/q1rN2r1/RnPBR3/3bK1k1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 g4 b5 e4 fxe4 axb5 g6 h5 gxh5 g5 Qc7 Qf3 Qd8 Qg4 hxg4 f4 Kf7 b4 Ke6 f5+ Ke5 g6 h5 b6 d5 b7 a5 g7 h4 b5 d3 b6 Kd4 Nc3 e5 Ra3 d2+ Kf2 d1B Ra1 a4 Bh3 a3 Rh2 a2 Rg2 e3+ Kf1 e2+ Kf2 e1B+ Kf1 e4 Nb1 e3 Ba3 Bg3 Bb4 Nc6 b8B Bd7 b7 Ne5 B8d6 Ra3 b8R Ba4 Rb6 Nd3 Re2 Nb2 Rg2 Qb8 Rh2 e2+ Kg2 Ke3 Nd2 e1Q Ne2 d4 Nb3 d3 Nec1 d2 Na5 Rc3 Be5 Bd6 Nd3 Bc7 Bf6 Bgd6 Rb7 Qg3+ Kf1 Qe5 Ba3 Qb5 Bg2 h3 Bc6 Rh6 Rf2 h2 Bb4 Rh3 Bd7 Rg3 Re2+ Kf3 Rc1 a1B Nc4 Rg2 Bd4 Kg3 Be5+ Kh3 Ra7 Rg3 Ba5 h1Q+ Kf2 Nf6 g8B Kh2 Bf7 Qha8 Bh5 Ng8 Bg7 Qac6 Re7 Qcd5 Rf7 Qe6 Kf1 Be2+ Kf2 d1Q Ra6 Qh1 Re1 Bd1 Re2 Qha8 Ke1+ Kg1 Bb4 Bb3 Ra2 Qa3 Ba5 Ba4 Bb4 Rb3 Bd2 Rc3 Be5 Q5b7 Bh8 Qb5 Bg7 Rb3 Nb6 Nc4 Re5 Bd4 Re2 Nb2 Nc4 Rc3
6q1/pqBk4/BPqr3N/B3RbbB/b1Nqr2K/2P1b3/5n1n/N1r4R w - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 b4 g5 h4 f5 e4 d5 e5 d3 b6 f4 b5 d2+ Ke2 d1R Kf3 d4 h5 d3 h6 g4+ Ke4 f3 Kf4 f2 e6 d2 b7 Qd5 b6 Na6 b8N Qb7 Kg5 Nc5 c3 Nd3 e7 Nf6 h7 Bf5 Rh5 Bh6+ Kh4 Bf4 Nd7 Rd8 Nb8 Rd6 Nf3 g1B Be2 f1Q Na6 g2 Nb4 g3 Nd4 Bge3 Nbc2 g1Q Nba3 g2 Nc4 Ng4 Ba3 Rc1 Bb4 d1B Ba5 Qff3 Rb1 Nh2 Na1 Rf8 h8B Nf2 Be5 Ba4 Rg5 Kd7 e8B+ Kc8 Bf1 Qfc6 Bh5 Kd7 Bd3 Rd8 Bde2 Re6 Bc7 Re4 Bd3 Qd1 Bf1 g1Q Bfe2 Bg4 Nf5 Qd4 Nh6 Be6 Re5 Bf5 Nb2 Qg8 Ba6 Kc8 Nc4 Rd6 Bf3 Kd7 Bh5 Rc2 Rf1 Rc1 Rh1 Bg5+
bq5q/2RNqr2/KR3p1R/P1qr4/Rb2rPb1/6N1/n2N1k1B/1rB4q w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 d5 b5 d3 b6 d4 Ne2 Na6 Bh6 Nc7 Ng1 axb6 Be3 b5 Bc1 b4 f4 g5 Qf3 Nd5 exd5 g4 g3 h5 Bh3 gxf3 g4 Kd7 g5+ Ke8 Bg4 hxg4 Kd2 Kd7 h4 Kd6 a4 Kc5 c4 b5 a5 e5 d6 e4 g6 f2 h5 f1B h6 e3+ Ke1 b3 h7 e2 Kd2 b4 d7 b2 g7 b3 Na3 b1R Rh2 g3 Rh1 g2 Rh6 b2 Rh3 f6 Nc2 Ra7 Rf3 Ne7 g8R Nd5 Ne3 Nb4 Rg7 Na2 Nf5 e1R Re7 Re4 Ng3 Qe8 d8B Bg4 Re6 Rf7 Rb6 Qe7 Bc7 Rg8 h8R Rg5 Rh6 Rd5 Re3 Bfe2 Nf3 g1Q Bb8 Bd1 Ba7 Ba4 Re2 Bc6 Reh2 Ba8 Rg2 Nb4 Ra4 Na2 Rgh2 Qh1 Rh7 Qg1 R2h6 Qh2+ Kd1 d2 Kc2 d3+ Kb3 d1Q+ Ka3 Re6 Nd2 Kd4+ c5+ Ke3 Rg7 Qdh1 Kb3 Rdd6 Kc4 Re4+ Kb5 Rd5 Ka6 Kf2 c6 Q2g1 c7 Qhh2 Nc4 d2 c8N d1Q Nd2 Qb3 Rd6+ Qe3 Nb6 Qgh1 Nd7 Qc5 Rb6 Qh4 Rhg6 Qh8 Rh6 Qe5 Rg8 Bd6 Rc8 Qe7 Rc7 Qc6 Ne2 Bb4 Ng3 Qcc5 Rh5 Qcd6 Rb7 Qdb8 Rh6 Kg2 Rd6 Ra1 Bg1 b1Q Ba3 Qb3 Bc1 Qe3 Bh2 Qc5 Rc7 Rb1 Rb6 Kf2
n3Nnrb/4NKqP/b1R2R2/NB5B/p1P4q/3n1nb1/4nBk1/qN2b3 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Bd2 d5 Bc1 d4 Nd2 a5 Nb1 h5 Qd3 Ra6 Qf5 Rf6 Qg5 Rf5 gxf5 Kf7 Qg2 Ke8 Qg4 hxg4 Kf2 Ke7 e4 Kd6 h4 Ke5 c4 g5 b4 d5 f6 a3 f7 a2 b5 d3 h5 d2 b6 d1Q h6 d4 h7 a4 b7 d3 Be2 d2 Rh2 Na6 b8N Nc7 Bf1 Ba6 Nh3 g3+ Kg1 f2+ Kg2 g4 Ng5 f3+ Kh1 Kf4 e5 Bd6 f8N Nf6 e6 Na8 e7 Rg8 e8B Nd7 Rh6 g2+ Kh2 g1N Na3 g3+ Kh1 g2+ Kh2 Ne2 Kh3 g1B Kh4 Qe7 Kh5 Kg3 Rg6 Qe1 Nc6 d1N Nb1 Nb2 Be3 Qg7 Na5 Nd3 Ne4+ Kh2 Bd4 Bg3 Nd6 Kh1 Bh3 f1N Bf2 Nd2 Bg4 Kg2 Kg5 B1h2 Bh5 Bh4+ Kf5+ B2g3 Ke6 Qh1 Rh6 Qe1 Ng6 Nf8+ Kd5 Qh1 Bb5 Qh2 Ne7 Qh3 Bb6 f2 Ne8 f1Q Rc6 Nf3 Bc5 Be1 Bf2 Qhh1 Kd6 Bg3+ Kd5 Nd7 Ke6 Qh4 Na3 Qg1 Rd1 a1B Nb1 Ndc1 Rd5 Nd3 Rf5 Bae5 Ba7 Qgd4 Rf6 Qa1 Bb6 Qh6 Bc5 Nf8+ Kf7 Q6g5 Bf2 Bb2 Rfd6 Bh8 Rf6 Qg7+
2BRN1qb/PN1bnrp1/1K5q/1b2r3/1B5P/1rq3Rb/3N1R2/kN1r2b1 w - - 0 1 illegal: Other
1b1Rq1BR/P1n2n1q/2brB3/K2r4/RpnPkN1b/1p6/R6n/Bn4N1 w - - 0 1 illegal: No possible last move
q1B2rq1/p3Nk2/5B1P/RqRq3b/Rq1npnr1/1rR2N2/1b1P1K1B/8 w - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 h5 c4 dxc4 Qf3 g5 Qg3 gxf4 g5 Nd7 Qf3 Nb8 Qg4 hxg4 b4 c5 h4 e5 h5 g3 h6 f3 g6 g2 g7 c3 b6 e3 b5 f2+ Ke2 e4 b7 c2 b6 c4 Ra4 c3 Ra2 Nf6 g8R Nd5 Rg5 Ba3 Ra1 Kf7 Rh3 Qg8 Rh2 Nc6 b8B Bb2 b7 Bg4+ Nf3 g1R Bc7 Rb8 Be5 Bh5 Ra5 Rg4 Bh3 Nf4+ Kf1 Nd4 Rg6 Rf8 b8R Rh7 Rga6 Rhg7 Bg2 R7g5 Bd6 Rb5 Rc8 Rb3 Be5 Ba1 Bb2 c1Q+ Ne1 c2 Rc3 Qd1 Bh3 c1Q Rac5 Qcc2 Ra4 Qf3 Bf6 Qcd1 Ba3 Bb2 Rca5 Qg3 Bd6 Qh4 Rac5 Qhg5 Rg2 Qc2 Nf3 Qd5 Rg3 Qa8 Rca5 Qd5 Rcc5 Qa8 Nc3 Qd3+ Ne2 Qc4 Bb8 Qcd5 Nc3 Ng6 Kg2 e2 Bc7 e1Q Bce5 Qc4 Nd5 Qb1 Ne7 Qb4 Bc7 Qd3 Bce5 Qdc4 Bd6 Qcd5 Bde5 Rf4 Bc8 Rh4 Rh3 f1Q+ Kg3 Qfc4 Kf2 Qcb5 Bh2 Nf4 Ng5+ Ke8 Rhc3 Rg4 Nf3 Kf7
2bn4/2nB3q/5rq1/B2Pq2p/2pN1k1b/4b2P/BKRRB1br/2RN1n2 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 b4 a5 f5 axb4 f6 e4 Qb3 gxf6 Qa2 f5 Qa3 f4 Qf3 exf3 Kd1 Kd7 Kc2 Ke6 e4 Ke5 g4 f5 g5 c5 g6 f2 b6 b3+ Kb2 f3 b7 f4 d3 Nc6 b8R Qe8 g7 Nf6 g8B Be7 Be2 f1B Nc3 f2 Na4 c3+ Ka3 b2 Ra2 b1Q Rb3 f3 Bg5 c2 Bd2 c1B+ Rbb2 Nd5 Ba5 Qg6 d4+ Kf4 e5 Be3 e6 Ra6 Rc2 Bh4 e7 Nc7 e8B Bg2 Bd7 f1Q Nb2 f2 Nd1 Nd8 Nf3 Qe1 Rd2 f1N Rac2 h6 Ba2 c4 d5 Rf6 Nd4 Qeg3 Rg1 Q3g5 Rh1 Qe5 Rg1 h5 h3 Rg8 Rc1 Qbe4 Kb2 Qh7 Rh1 Rg3 Rcc2 Qeg6 Rg1 Rf3 Rh1 Rf2 Nc3 Ng3 Rhc1 Nf1 Nd1 Be4 Ba4 Rh2 Bd7 Bg2
3N4/r2n2b1/6K1/PPN1Nr2/1bB2p2/2RbRN1q/1k1prrB1/r2nB2r w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 d4 b5 g4 bxc4 b5 c5 Qa4 cxd4 Qb4 h5 gxh5 axb4 Kd2 Ke7 h4 Ke6 a4 Ke5 e4 g5 a5 d5 h6 f5 h5 g4 h7 f3 h6 g3 Ra2 d3 Ke3 c3 Bg2 b3 Ne2 c2 Bh3 f2 Na3 f1R Nf4 b2 Rh2 b1R Ne6 g2 Rb2 g1B+ Rf2 d2 Kd3 d1R+ Rd2 f4 Bg2 d4 Rb3 Ne7 Rc3 Ra1 Nc5 Bg7 Nb1 Rf8 h8N Rf5 h7 Rde1 Re2 Nd7 Re3 Rf2 Bd2 Ree2 Be1 c1R Nd2 Nd5 Nf3+ Kf6 Rb3 Nc3 Ng6 Nd1 h8N Ra7 Nf7 Qh8 Nd8 Qh3 Rc3 Bb7 Nge5 Bc8 Kc4 d3 Kd5 d2 Nh2 Kg5 Ke6 Bb7 Ke7 Bc6 Ke8 Kf6 Nhf3 Bd5 Nef7 Bc4 e5+ Kg6 e6 Kf6 e7 Bd3 N7e5 Rcb1 Ndc6 Rc1 Na4 Ke6 Nd8+ Kd5 Nc5 Nf6+ Kf7 Nd7+ Kg6 Rcb1 Ng5+ Kd4 e8B Rc1 Bf7 Rcb1 Rc2 Rc1 Ra2 Kc3 Ra3+ Kb2 Ngf3 Bh2 Nce6 Bg3 Bg8 Bh4 Nc5 Be7 Rc3 Bd6 Bc4 Be7 Ncb7 Bb4 Nc5 Rf1 Re4 Ne3 Bf2 Rh1 Bg3 Rcf1 Be1 Nd1 Re3 Rff2
2RrN2B/5nB1/1PNb4/1r1PB1Rn/3b1p2/1k2bB1K/2prbb2/2R1bb2 w - - 0 1 illegal: No possible last move, all moves rejected
1n5q/kN2NPn1/q1RNpn2/7q/1K1b4/2R1nBPr/2R1qpn1/r4NB1 w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Ba6 fxe6 Be2 e5 Bf1 e4 f4 b6 h3 Ba6 f5 Bb5 Qf3 Be2 Qf4 Bg4 hxg4 gxf4 Kd2 d5 a4 Kd7 c4 Kc6 f6 Kb7 f7 h5 g5 d3 g6 f3 a5 f2 c5 d4 c6+ Ka7 c7 h4 c8R h3 a6 e6 g7 h2 Rc4 b3 Rb4 b2 Ra2 b5 Rc4 b4 Ne2 b3 Ra3 e3+ Kd1 d2 Nf4 Nf6 g8N Bg7 Rc6 Rh3 Ne7 Qh8 Nd3 Nh5 Rg1 h1Q Nc5 Bf6 Ke2 d1N Kd3 e2+ Kc4 e1N Be2 d3 Bf3 d2 Kb4 Ng7 Nb7 Ne3 Rf1 d1N Nd2 b1Q Rc2 b2 Rac3 Qa1 Rg1 Bd4 Nf1 Nef5 Bf4 Nd6 Bh2 Nde8 g3 Ne3 Rc6 Nf6 R6c3 Qg2 Rh1 Qa2 Bg1 Qh2 Rc6 N1g2 R6c3 Kb6 a7 Qa6 Rc1 Rh7 R1c2 Qh6 Rh5 Qe2 Rhc5 b1Q+ Rb3 Qa2 Rbc3 Qaa6 Rc8 Nbd7 R8c5 Qh5 Rc8 Rb8 a8N+ Ka7 Nb6 Ra8 Nc4 Nb8 Ncd6 Qg6 Nef5 Rh3 Ne7 Qgh5 R8c6 Qb6+ Ka3 Ka6 Rc7 Qc6 Kb3 Kb6 Rc8 Ra1 Kb4 Ka7 Rc7 Qca6 R7c4 Q8h7 Rc6 Qh8
2R1N3/nB1N1Bnn/5R1p/2rb3B/k1n1n1B1/r1p5/Pp1bP1bN/q3K3 w - - 0 1 legal: proof: f4 a5 h4 e5 b4 exf4 Nf3 axb4 Ng1 g5 hxg5 c5 Rh5 c4 Rh4 Qb6 Rh1 Qd8 Bb2 d6 Bd4 Qc7 Bc5 Be6 c3 Bf5 Qb3 cxb3 c4 Bc8 Ba7 Qa5 c5 Qc7 c6 Qd8 Bc5 dxc5 d4 f5 g4 b5 g6 b2 g5 f3 d5 h6 c7 Kd7 g7 b3 d6 Kc6 g6 f2+ Kd1 b4 d7 Kb5 Na3+ Ka4 Rc1 b1N Nh3 f4 Ng1 f3 Rh3 b2 Nc2 b3 Rh2 c4 Bh3 f1B Na3 f2 Rh1 c3 Rc2 Bg2 Nc4 f1N Nd6 Nbd2 Nf3 b1N Ke1 Nc6 Rb2 Na7 Bg4 Na3 Nh2 Ne3 Ne8 Nf6 g8B Bcb7 c8B Nde4 g7 Nac4 Rf1 Nh7 Bf7 Bd5 g8B Ba3 Bb7 Nf5 Bfh5 Ng7 Rf6 Qb6 Rd2 Bc1 d8N b2 Ne6 Rc8 Bgf7 Rc5 Nf8 Qb3 Bfg6 Qc2 Rd4 Qb1 Nd7 Qa1 Bf7 Rg8 Nc7 Rc8 Ne8 R8c6 Rd3 Rb6 Rdf3 Rb3 Rc6 Ra3 Rc8 Na5 Rf1 Nc4 Rf6 Bd2#
5n1B/pprn4/2NRb1b1/p3r2N/1P4Nn/r2R1r1k/1KNP1R2/2qr3B w - - 0 1 illegal: No possible last move
N7/2q4N/bB2pRBB/1Pn1krBn/1b1r2RP/2b3pK/2b1p2n/4R1r1 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 c5 a4 cxd4 b5 f5 Qd2 fxe4 Qb4 axb4 a5 b6 axb6 Ra4 Bf4 Ra3 Bc1 Ra8 c4 Kf7 f4 Ke6 Kf2 d5 Kg3 g5 h4 e3 b7 b3 f5+ Ke5 c5 e6 f6 e2 c6 d3 c7 d2 f7 d1N Na3 b2 Rb1 d4 Bd2 d3 Rh3 Ne3 Nc2 Nd7 b8B Ra1 Na3 Nc5 Rh1 Nf6 Ba7 Rh5 Nh3 Ba6 c8R Qc7 Re1 b1B Bb6 Bc2 Bg2 Be7 Be4 Nf1+ Kg2 g3 f8B g4 Bg5 d2 Bfh6 d1R Rg1 Rd4 Rf8 Nh2 Bg6 Rad1 Bc1 Rf5 Ng5 Nh5 Rf6 Bd6 Nh7 Bf8 Bcg5 Be7 Rgf1 Ra1 Rf4 Rb1 Kg1 g2 Kf2 g1B+ Kg2 g3 Kh3 Be3 Rg4 Bd2 Nc4+ Kd5 Ba5 Bc3 Nb6+ Ke5 Na8 Bd6 Rh1 Rg1 Bb6 Rg2 Re1 Rg1 Be8 Nd3 Bf7 Bdb4 Bg6 Nc5
2RRB3/bk1n1q1N/2rq1BNb/8/r1r5/P3P1B1/pp2Kbpb/1nR2B2 w - - 0 1 illegal: No proof kernel
1K1RN3/n2R3p/2Rp4/krR4q/PqpN3P/b2bn3/2q2n2/2rBq1BN w - - 0 1 legal: proof: f4 f5 b4 a5 e4 axb4 c4 bxc3 d4 g5 Qd2 e5 dxe5 fxe4 f5 Bh6 Qe3 Bf8 Qf4 gxf4 Ke2 b5 g4 c5 h4 c4 g5 f3+ Ke3 c2 Kf4 b4 f6 f2 e6 b3 Ke5 e3 e7 b2 Kd6 e2 g6 Nc6 g7 Qa5 Nh3 Nh6 g8R Ng4 Be3 c1Q Na3 b1Q Nc2 Qh5 Kc7 Ra4 a3 Na7 Rg5 Rb4 a4 Rg8 Rg1 Rb5 Bc5 Bb7 Kb8 Be4+ Bb6 Qa3 Rg6 Qba2 Rd1 Q2b2 Bg2 f1N Nf2 Qbb3 Rd4 Bd3 Bf3 Qb1 Nh1 Qab3 Nb4 Q1c2 Nc6 Qa3 Rh6 Rgg5 Rd6 Rb1 Rd4 e1Q Bd1 Rc1 Rg3 Rc5 Rf3 Rb5 Rf5 Kf7 e8N Ke6 Rg5 Qac3 Rdd5 Ba3 Rg7 Qb4 Rf5 Re5 f7+ Kd5 Re6 Qbd2 Bg1 Nfe3 Rd6+ Kc5 Nd4 Nf2 Rb6 d6 Rc6+ Kb4 Rfg5 Ra5 Rgc5 Qdc3 f8R Rb5+ Rb7 Ka5 Ng7 Qb4 Rd8 Rb1 Ne8 Rc1 Ka8 Qf5 Rbd7 Qh5 Rcc8 Kb6 Kb8 Qh6 R8c7 Qh5 R7c6+ Ka5+
1rr2qnB/brpR1N2/2n3Bp/R2p2PP/1RB4q/N1K5/2b3r1/qB2k3 w - - 0 1 legal: proof: f4 f5 b4 a5 e4 axb4 c4 bxc3 d4 g5 Qd2 e5 dxe5 fxe4 f5 Bh6 Qe3 Bf8 Qf4 gxf4 h4 Ke7 a4 d5 g4 b5 a5 b4 e6 Kf6 h5 Kg5 f6 e3 e7 b3 e8B b2 a6 h6 f7 c2 a7 e2 Kd2 e1Q+ Kd3 Qf2 Nc3 b1R Nb5 Bc5 f8R Bf5+ Kc3 Nc6 Bg6 Rb8 a8B Ba7 Nh3+ Kh4 Ng5+ Kg3 Bd3 f3 Na3 R1b7 Nf7 Qh4 Bb2 c1R+ Bc2 Re1 g5 Rg1 Bb1 Bc2 Rd8 Rg2 Rd7 Qe2 Rd1 Kf2 Rd4 Ke1 Rb4 f2 Ra2 f1Q Ba1 Rb6 Bb7 Rb5 Ba6 R5b7 Nd8 Qf8 Bc4 Rh7 Bb2 Re7 Nf7 Ree8 Nb5 Rec8 Ra5 Bb3 Ba1 Qa2 Na3 Ba4 Kd3 Bd1 Bh8 Bc2+ Kc3 Qa1+
3qBRnN/2pBNb2/B2P3p/n3KpR1/4q1P1/n1B5/nR6/k3qrbr w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 b5 a4 b3 d4 h3 g4 b4 d6 f3 a5 h2 d7 f2 a6 b2 d5 h6 a7 b3 d6 Bg7 Qe1 Nc6 Nf3 Na5 Nc3 b1N Ng5 b2 Ra2 Na3 Bd2 b1N Rb2 Bb7+ Kf4 Bd5 e4 Rh7 Ba6 f1Q+ Nf3 Rb8 a8B Rb4 Qe3 Qe1 Bc6 Bb3 Rf1 h1Q Nd5+ Ke6 Ba4 Bd4 e5 Nc3 Nh4 Na2 Qe4 Bg1 Bc3 f5 Ng6 Re7 Nh8 Rd4 Rf3 Rd1 Rh3 Ra1 Rh5 Qb1 Rg2 Qh4 Rg5 Qhe1 Rb2 Re8 Ne7 Bd5 Qe2 Bc4 Neg6 Kd5 e6 Kc5 e7 Bf7 Bd2 Kd4 Bc6 Qc8 d8R Qd7 Ra8 Rb8 e8B Qd8 Ne7 Rb4 Be3+ Kc3+ Ke5 Rf4 Bcd7 Rf1 Bc1 Qf2 Qe4 Qe1 Rg2 Kb3 Bd2 Kb2 Rc8 Qc2 Rf2 Rd1 Ra8 Qb1 Bb4+ Ka1 Rb2 Rd2 Bc3 Rh2 Rc8 Rh1 Ba4 Qd7 Rd8 Qc8 Bed7 Qa8 Rf8 Qc8 Be8 Qd8 Bad7 Qbxe4#
6Rq/1PBk1rN1/4r1p1/1np2b1N/1rrn4/n1RNrBP1/pK4R1/1N5q w - - 0 1 legal: proof: b4 d5 f4 b5 a4 bxa4 h4 e5 c4 dxc4 h5 exf4 h6 g6 Qb3 Bg7 hxg7 axb3 Kd1 h5 d4 a5 e4 c5 b5 f5 d5 b2 Kc2 h4 b6 a4 b7 a3 e5 a2 d6 h3 e6 f3 e7 f2 g3 h2 Ne2 c3 Nd4 f4 Nf5 f3 Nh6 Nc6 Ba6 f1R Bc4 f2 Ng4 Nf6 g8N Nd5 Ne3 Re1 Ng4 f1R Be2 Ra4 Bf4 Rb4 Nf2 Kd7 e8N Nc7 Rg1 h1Q Ng7 Nb5 Bf3 Re3 Nd3 Rfe1 Rg2 Rh7 Bd5 Re6 Bf3 R1e3 Be5 Rbh4 Kb3 c2 Bf4 c1R Be5 Qe8 Nf6+ Kd8 d7 Qh8 Bb8 Rcc4 Bc7+ Ke7 d8R Bd7 Nd2 b1N Nfh5 Ncd4+ Kb2 N1a3 Rc1 Bc8 Rg8 Kd7 Nf5 Rf7 Rc3 Ne2 Nb1 Rb4+ Ka1 Rhc4 Nfg7 Ned4 Rf2 Ree7 Bb6 Kd6 Rg2 Bf5 Bd8 Kd7 Bc7 Nb3+ Kb2 R7e5 Ndf4 Re6 Nd3 N3d4+
3Bkr2/1q5p/1r1n1PPr/pr2B3/B5R1/1b1K2r1/r1npRN1N/q4RR1 w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 Bd2 e5 Bc1 e4 g4 Qc7 h4 Kd8 f5 Nf6 Qf3 Qb6 Qf4 gxf4 g5 Ng8 g6 Bh6 Be2 Bg5 hxg5 Ke8 Bf1 Qd8 Kd2 e5 b4 d5 c4 a3 g7 f3 g6 a2 c5 f2 c6 d3 f6 d4 c7 e3+ Kd1 e4 b5 d2 Kc2 d1R b6 d3+ Kc3 d2 b7 e2 Rh6 e1R Kc4 e3 Ne2 Ne7 Rh5 Na6 b8B Qd7 Ba3 Nb4 Rg5 Nf5 Nd4 e2 Nc3 Nc2 Be7 Rb1 Nf3 Rf8 g8R Rb5 Bd8 Nd6+ Kd3 Reb1 Ne4 e1R Nh2 a6 Bg2 f1R Nf2 Rh1 Bc6 Reg1 Rg4 Rb6 Ba4 R1b5 Rd1 a1Q Rf1 Qe7 Rg7 Be6 c8R Qb7 Rc5 Bb3 Rcg5 Ne4 Be5 Nd6 Rc7 Ra7 Rcc4 Ra8 Rce4 Rg3+ Nf3 Rh6 Re2 a5 Rb1 Rc8 Rf1 Ne3 Nh2 Rc2 Rf4 Ra2 Rfg4 Rgh3 Rgg1 Rg3 Rg4 Nc2+
1B5N/2rn1qqK/p2RrN2/Pb1Nr3/2nN4/qr1kp1pR/1P5R/B1q5 w - - 0 1 illegal: Other
2R4b/pn6/1b2R3/1K2B1pk/1NBpbP2/R1RpN3/2rn2BP/4rqbn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 h5 g4 hxg4 Nc3 c5 Nb1 cxd4 Qd3 exd3 Bg2 d2+ Ke2 d3+ Ke3 Qa5 Kd4 Kf7 Kc5 Kg6 b4 d1N f4 d5 c4 d4 Nf3 Bb7 Ba3 Nf6 Nfd2 Kh5 Re1 g5 Nc3 Nf2 Nf1 Nh1 Nd5 Bg7 Rec1 Qa6 b6 e5 b5 e4 Kb4 e3 c5 e2 c6 Re8 c7 Re3 c8B Bh8 Be6 e1B+ Kc5 Bc6 b7 Ba5 b6 Re2 Rc3 Rc2 Nc7 Bf3 Bc4 Nc6 b8R Nd8 b7 Bb6+ Kb4 Ne4 Nd5 Nd2 Ra2 Ne6 Re8 Nd8 b8R Nb7 Ra1 Nc5 Re3 Nb7 Rg8 Rd8 Ra2 Rd6 Rc8 Rf6 Ree8 Re6 Ra1 Re4 Re6 Re2 Nfe3 Be4 Bb2 Qa2 Kb5 Qb1 Ra6 Qf1 Ba3 Re1 Bd6 Be5 Nb4 Bh8 Raa3 g3 Bh3 g2 Be5 g1B Bg2 Ba5 Ka4 Bc7 Kb5 Bb6
3R1Kb1/7p/3P1n2/p1N3pN/pBq3qR/pNB2P1N/2nb3r/nk1b3B w - - 0 1 illegal: No proof kernel
nR1nB3/6Kq/1pp5/n2pP1BN/1k6/4rpPN/1BRNp3/1b1r1rnN w - - 0 1 illegal: No proof kernel
kqnrBNb1/1R1pBr1r/n1r5/R5bq/2rP1N2/2nrR3/KP4R1/2r4B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 c4 Qd3 cxd3 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 f5 Kc3 h5 e4 a5 g4 a3 Kb3 d2 c4 d1N g5 f3 g6 h3 c5 h4 e5 f4 c6 f2 g7 a2 c7 h2 e6 a4+ Kc4 a3 Kb3 h3 e7 f3 Nd2 Ba6 c8B Nc3 Ne2 Rh6 Bb7 Rc6 Nf4 Bc4+ Kc2 Na6 Bg2 f1R Ne6 f2 Nb1 Qb8 Nc5 Rd1 Ne4 f1R Bd2 Rf7 Re1 h1R Ng5 h2 Be4 Be6 Be3 Rd3 Bg6 Rc4 Re2 Rc1+ Kb3 h1Q Nh7 Qh5 Bg5 Rc2 Nd2 Rc6+ Nc4 Rc1 Rb1 a1R Re3 a2 Ka3 Rh1 Ne5 Bb3 Rf1 Rc1 Rf5 Be6 Bh4 Rc4 Kb3 a1R Rg5 Rab1 Ka3 Rh3 Bh1 Rc2 Rg2 Rbc1 Bf6 Qb5 Bg5 Rd8 Bh4 Qb8 Rg5 Nh6 g8R Nf5 Rg7 Nd6 Rg8 Rdd2 Nd3 Nc8 Nf4 Rd3 Ra5 Bd5 Bf5 Rc6 Rg2 Bh6 Nf8 Bg5 Be4 Rf5 Bf3 Bg8 Be4 Rf7 Bg6 Ne4+ Ka2 R2c4 Bg3 Qg4 Be1 Rh7 Bb4 Qh5 Bc5 Rd2 Rb3 Rd3 Rb7 Nc3+ Ka3 Qa8 Bf5 Rff6 Ra7 Qb8 Be6 Rd6 Bf5 Kf7 e8R Rb6 Re3 Rbd6 Reg3 Ke7 Bg6 Rf5 Be8 Rff7 Bb6 Rg6 Re3+ Kd6 Bc5+ Kc6 Be7 Kb6 Rb7+ Kc6 Rb4 Kc7 Kb3 Rb6 Ka3 Kb7 Kb3 Ka7 Rbb5 Re6 Rb7+ Ka8 Ka3 Rec6 Kb3 Ne4+ Ka2 Nc3+
4qRq1/bnnR4/R1BP3N/2rB1n2/5N1b/r3B1p1/1rn2RP1/1k2Knnb w - - 0 1 illegal: Other
1qr5/2kBpb1n/Bn3R2/q4R2/NRrn2rN/4P1PR/3B3r/2qqK1bq w - - 0 1 illegal: No possible last move, all moves rejected
knN1B3/6n1/1Bn2Pr1/1q4p1/1qqNRpP1/K1RnbN2/2b3bR/1r2n2N w - - 0 1 illegal: No possible last move, all moves rejected
1n3r1B/1n1bk3/2qr3R/2Rn3n/2N2n2/1BRpbN2/1rqP1p1P/2bK1BR1 w - - 0 1 legal: proof: g4 c5 f4 h5 b4 hxg4 f5 cxb4 f6 a5 c3 a4 Qb3 axb3 Bb2 exf6 Ba3 f5 Bc1 f4 e4 g5 a4 d5 e5 b5 c4 f5 e6 f3 a5 d4 c5 b2 c6 b3 a6 f4 e7 d3 c7 g3 a7 b4 Nh3 g4 Na3 b1N Rg1 f2+ Kd1 b2 Rh1 b3 Nc4 g2 Ra4 g1B Ne3 f3 Bg2 f1N Ra1 g3 Ng5 Nf6 Ne4 Qd7 Nc5 Nd5 Ra2 Na3 Nc2 b1R Ne3 b2 Nb3 Rh6 Ra1 Nb5 Nc4 Rd6 Nc5 Qc6 Bh3 g2 Nd7 Be3 Nde5 g1N Ra3 f2 Nf3 Ne2 Rc3 Nef4 Rg1 Ng3 Bf1 Bd7 c8R+ Kf7 e8B+ Ke7 Rc7 Ngh5 Bf7 Bg7 Rc8 Bgd4 Rh8 Bc5 Rh6 Ba3 Be2 Rg6 Bf1 Nd6 Be6 Nb7 Bg8 Rd6 Bf7 Na6 Bg8 Re8 a8R Nb8 Ra5 Rf8 Rb5 Ra1 Be6 b1Q Rc5 Ra2 Bg8 Qbb6 Bb2 Qbb5 Ba1 Bc1 Rb3 Rc2 Bh8 Qb4 Ra3 Qb1 Rc3 Rb2 Na5 Ndf6 Bb3 N6d5 Nc4 Qc2+
R2N3r/2bR4/q1BN1nb1/kr2Kpp1/2qr4/3q1PB1/n1b1b1P1/1RR2b1N w - - 0 2 legal: proof: h4 e5 b4 Qxh4 d4 c5 b5 c4 b6 exd4 Bf4 Qh2 Qd3 cxd3 Bg5 axb6 Bd2 b5 Bc1 b4 Kd2 Kd8 a4 Kc7 e4 Kb6 c4 d5 c5+ Ka5 f3 b5 e5 h5 e6 g5 c6 h4 c7 b3 e7 b2 e8N h3 Ne2 b4 Ng7 b3 Nf4 Nf6 Ngh5 Ba6 c8R Bd6 Rd8 Bc7 Rf8 Nc6 Ne6 Rb8 Re8 Nb4 Nhg7 Qd6 Nf5 h2 Neg7 Rb5 Ra8 Na2 Nc3 b1B Bb2 Bc2 Ne6 Qb4 Rc1 Qc4 Rg1 h1Q Rd8 Qh6 Ne2 Qg6 Ba1 b2 Nd6 b1B Ng3 Qh6 Nh1 Qg6 Ke1 d2+ Kf2 d1Q Rd7 d3 Ke3 d2 Be5 Qh6 Bg3 d4+ Kf2 Bg6 Nd8 d3 Ke3 Bc2 Be2 Qf1 Rb1 d1B Rc1 Qc6 Kd4 d2 Bd3 Qh4+ Be4 Be2 Rb1 Qh7 Bd5 d1R+ Ke5 Qc4 Rc1 Rb3 Bc6 Rd4 Rb1 Qh6 Rc1 Qd1 Rb1 Qdd3 Rgc1 Kb4 a5 Bb5 a6 Ka5 a7 Ba6 a8R Rb5+ Bd5 Nh7 Rc8 f5 Rb8 Nf6 Ra8 Bf1 Rb2 Bf7 Re1 Qcb3 Re4 Rb6 Bh4 Qe3 Bg3 Ng8 Rb1 Qa4 Rc8 Qeb3 Ree1 Bae2 Red1 Qac4 Rdc1 Qbd3 Rb8 Rb5 Rc8 Bb6 Ne8 Qhc6 Nd6 Bg6 Rb8 Bc7 Rc8 Qa6 Ra8 Rb8 Be4 Nf6 Bc6 Rb5+
N7/rn1p1B1k/2Rp4/Pr2Nnqq/3b1bR1/Rq3b1r/2KP1B1N/4Rq1n w - - 0 1 legal: proof: g4 a5 b4 axb4 f4 e5 c3 exf4 Qa4 h5 Qc6 hxg4 Qd6 cxd6 Kd1 g5 a4 b5 e4 f5 h4 Kf7 a5 Kg7 c4 g3 c5 g4 h5 b3 e5 g2 c6 b2 h6+ Kh7 e6 g3 c7 f3 e7 f4 e8R b4 Bc4 f2 Bd5 f1Q+ Re1 f3 Rh2 f2 Kc2 b3+ Kc3 Ne7 Ra4 Na6 Nf3 g1B Rh3 g2 Bc4 Nf5 Nh4 Nc5 Nf3 Nb7 Rh4 Qg5 Na3 b1Q Rg4 b2 Nh2 Qh5 Nb5 Ra7 Bf7 Bg7+ Kb3 Be5 Ra3 Bf4 Kc3 Qa2 Kc2 b1R+ Bb2 Qe6 Bd4 Qe3 Nc3 Rb5 Na4 Qeh3 Nb6 Qb3+ Kc1 Nd8 Na8 Bb7 c8R Bf3 Rc3 Nb7 Rc5 Qe2 Rc4 f1N Rc6 N1g3 Bb6 Qf1 Bf2 Qd5 Kc2 Nh1 Bh4 Bd4 Bf2 g1Q Raa1 Re8 Ra3 Kh8 h7 Re3 Rh4 Qgg5 Rg4 Kg7 h8N Kh7 Ng6 Qb3+ Kc1 Bg2 Ne5 Rg3 Nb6 Bf3 Na8 Qe6 Kc2 Rh3 Nb6 Qd5 Na8 Qb3+
1Nb2B2/3r1r2/N3Rnqb/1Bp2K1n/2N1p2P/1B1n3n/3nP3/n2RnNqk w - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Nc3 h4 Qb3 dxc6 Qa3 c5 Nb1 c4 Qg3 hxg3 d4 Kd7 Kd2 Kd6 Ke3 g5 Ke4 b5 f4 e5 h4 c5 a4 c3 f5 b3 a5 c2 d5 b2 f6 b4 a6 b3 f7 g2 a7 g3 Nf3 g1Q Ra5 g4 Ra4 g2 Rh2 g3 Nfd2 Nd7 Ra2 Qg5 Ra5 Qg6+ Kf3 e4+ Kf4 Rh7 Rh1 Ndf6 Na3 b1N Rh3 b2 Rh1 Rb8 a8B Rb7 Rb5 Rd7 Bc6 Bg7 f8N Rf7 Nf3 Nd2 Rb6 b1N Nh2 Nb3 Ne6 N1d2 Nc7 Na1 Na6 Bf8 Bb2 c1N Bd4 Rd7 Bb2 Rhf7 Nc4+ Ke7 Bb5 Nh5+ Ke5 Ngf6 Rd6 Bh6 Re6+ Kf8 d6 Kg7 Re8 Nd3+ Ke6 Qe3 Re7 g1N Bh3 g2 Nf1 Ngf3 Rg1 Rb7+ d7 Nfe1 Be5 Qf2 Bd6 Kh7 Rh1 g1N Re8 Ra7 Bf8 Rc7 Bf5 Nh3 Re7 Qg1 Re8 Bb7 d8N Rcd7 Nc6 Bc8 Bg4 Qg8 Ncb8 Kg6 Nb2 Ng3 Bf5+ Kh5 Nc4 Qg5 Bh7 Kg4 Bg8 Qg6 Re7 Nb4 Ke5 Ngh5 Re6 Nbd5 Nfe3+ Kg3 Nf1+ Kg2 Rc6 Ndf4 Re6 Qg7 Kf5 Nfd3 Ba4 Rb7 Bb3 Rfd7 Bf7 Qg8 Be8 Rf7 Bc6 Rbd7 Bb5 Qh2 Rc6 Nef3 Ng3 Qg7 Re1 Qg1 Nf1 Kh1 Rd1 Nfe1 Re6 Q7g6#
6rR/B6n/N1r1pRN1/1rn1P3/Bpb1q1B1/bP1r4/B3N1kr/b2K1qb1 w - - 1 2 illegal: No possible last move
1B1n1n2/nBR3p1/3n3k/P2BqpNr/Kb2b1P1/R2r3B/1r2r2N/Rq2n3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 f5 cxd4 f6 h4 Qd2 exf6 Qc3 f5 Qf3 f4 Qg3 hxg3 Kd2 f5 a4 Kf7 e4 Kg6 h4 b5 c4 d5 Kc2 b3+ Kb2 b4 h5+ Kh6 a5 g2 e5 d3 e6 d4 c5 d2 e7 d1R e8B d3 c6 d2 c7 f3 Nh3 g1N Na3 f2 Bg6 Nf6 Ng5 Qd4+ Kb1 b2 Kc2 b1R Ne4 Nh7 Nf6 Qe5 Nd5 Nf3 Bf7 Bb7 c8B Nc6 Bh3 f1N Nb5 Ng3 Ra3 Ne4 Nd4 Nd8 Nf4 Nd6 Bd5 b3+ Kc3 b2 Kb4 Ra6 Nfe6 Ne1 Nf3 Be7 Neg5 Nf8 Ka4 Ra8 Bg8 Be4 Bd5 Rb8 Rg1 Ra1 Rh1 b1Q Nh2 Rb2 Bcb7 Raa2 Rg1 Rb3 Rf1 Re3 Bb2 Re2 Bd4 Rb2 Ba7 Nb5 Bb8 Bb4 Rh1 Na7 Rg1 Rc1 Rf1 Rc3 Rh1 Rd3 Rg1 Nc2 Rc1 Ne1 Rc7 d1N Ra2 Ne3 Ra1 Rd4 Bf1 Nc4 Nf7+ Kh7 h6 Nd3 Ng5+ Kg6 h7 Nd6 Bg2 Ne1 Bf1 Rg8 h8R Rd1 Rh3 Rh8 Rg3 Rh5 Rga3 Kh6 Bh3 Rd3
2R4r/B1R2n2/1nbPB2r/K3nqBN/n1p5/1rBr1p1R/2k2PqN/3bb3 w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 dxc4 g5 e5 g6 hxg6 d5 g5 Qd2 g4 Qd4 exd4 Kd2 Kd7 b4 Kd6 h4 Ke5 e4 g5 h5 f5 h6 a5 h7 c5 b5 c3+ Kc2 g3 b6 g4 b7 a3 Kb3 d3 Ka4 Kd4 e5 a2 e6 d2 e7 d1B+ Kb5 f4 e8R g2 Nd2 g3 Re3 a4 Re2 Kd3 Ne4 a3 Rb1 a1N Bd2 f3 Rb3 c4 Re1+ Kc2 Be3 a2 Ba7 Qd7+ Kb6 Bb4 d6 Qf5 Rh6 Bd7 Rh4 Bc6 Rb1 Nd7+ Ka6 Nb3 b8B Nh6 Nf6 Nf7 Rh1 Nb6 Nh3 g1Q Nf4 g2 Bc7 Rab8 Bd8 Rb7 Re5 a1R+ Ra5 Ra4 Ng4 Ra3 Nh5 Qh2 Bh4 g1R Bg5 Qg2 Rh3 Rh1 Nh2 Nd2 Ra1 Nb1 Ra4 Rb3 Ra5 Re7 R1a3 Re3 Rc5 Rd3 Ra1 Kb2 Ra3 c2 Raa5 c1N Ra3 Rc8 h8B+ Kc2 Bc3 Rh8 Ra4 Be8 Rc7 Bc6 Ra5 Rh6 Rc5 Rh8 Bg7 Be1 Bc3 Rh6 Ka5 Rh8 Bcd2 Nc3 Rc8 Nca4 Bc3 Rd2 Rc7 Nd3 Rc8 Nde5 Bd3+ Kc1 Be4 Rh6 Bd5 Kc2 Be6 Rd3 Ng4 Bd7 R5c7 Rh2 Rg3 Rh4 Rh3 Bc6 Nh2 Rh8 Ng3 R4h7 Nh5 Rh6
n5b1/1q1p4/rq1B2bk/PR1P2r1/B1N2NRb/1B3p2/R1b3r1/qn2K1rR w - - 0 1 illegal: No possible last move
4n3/2B2n2/b3n1N1/pknBr2B/4q3/P1B1PNbR/1q1pq1N1/R1rb1b1K w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 d5 gxf4 g5 e6 Qb3 exd5 Qf3 d4 Qg4 hxg4 Kf2 f5 Kg2 c5 h4 a5 b4 d5 g6 Kd7 e3 Kc6 g7 c3 a3 c4 h5 d3 h6 g3 h7 c2 Nf3 c3 Rg1 d2 Ra2 d1B Nfd2 d4 Nc4 d3 Rb2 d2 Ra2 f3+ Kh1 g2+ Kh2 f2 Nb2 f4 Ra1 f3 Bd3 f1B Ra2 f2 Be2 Qe7 Bg4 Bca6 Bf5 Nd7 Rh1 g1N Nd3 Nh3 Ra1 Rc8 Ne1 Kb5 Bb2 c1N Bg6 c2 Ng2 Qe4 Bh5 Ndf6 Bc3 Nh6 g8B Nf4 Bd5 Rg8 h8N Ne6 Ng6 Nf7 Bg4 Nb3 Bh5 Ka4 b5 c1Q b6 Qb2 b7 Kb5 b8B Ne8 Bc7 Nbc5 Kg3 Be7 Rh3 Bh4+ Kh2 Bg3+ Kh1 Rg7 Ne5 Rg5 Ng6 Bb7 Bg7 Re5 Nc3+ Ka6 Ne2 Kb5 Ng1 Ba6 Bd6 Nd3 Bb8 Rc1 Nf3 Ndc5 Bh8 Bd3 Bc7 f1Q+ Ng1 Qf2 Nf3 Bf1 Bg7 Qe2 Bf6 Rf5 Bc3 Re5
1B2N1r1/2K4P/1Nq1pqB1/2q2p2/2nbBr2/1k1r4/1bR1RPR1/nq1bR2r w - - 0 1 illegal: No possible last move, all moves rejected
Rr1nq3/pbRBq2p/3br3/PK1qB1N1/5BN1/kNpr4/3P4/b2n2Nn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxe4 h5 bxc4 h6 f5 Be2 e3 Qc2 gxh6 Qe4 fxe4 Bd3 h5 Bf1 h4 Ke2 Kd7 a4 Kd6 g4 Kc5 f4 Kb4 b3 c5 f5 e5 f6 c3 g5 h3 f7 c2 g6 h2 a5 c4 g7 Nf6 g8N Nc6 Bg2 Bb7 Nc3 Ng4 Na4 Nf2 Nf6 Qd5 Bh3 Nd1 Bb2 c1B Ng4 Bd6 f8N Rb8 Nc5 Nd8 Nfe6 Rf8 Ng5 Rf3 Bd4 Bb2 Rc1 Ka3 b4 Ba1 b5 Rg3 b6 c3 Rb1 Rf3 Rb4 Rg3 Rc4 Rf3 Nb3 Rg3 Ke1 e2 Rc7 Rd3 Be3 Nb2 Kf2 e1R Bf4 Re2+ Kf1 Ree3 Kf2 Nd1+ Kf1 Rg3 Ke1 e3 Ke2 e4 Be5 Rf3 Bf4 Rf1 Be5 Rf6 Bf4 Bc8 b7 Re6 Be5 Ra8 b8B Ba6 N1f3 Bb7 Rf1 h1N Ng1 Ba6 Rc4 Bb7 Bc7 Rc8 Rf8 Rb8 Bf4 Bb4 Bce5 Bc5 Kf1 Bd6 Rc7 e2+ Kg2 e1Q Rh8 Qh4 Kf1 Qh5 Ke2 Qe8 Rg8 Rf3 Rf8 e3 Rh8 Qdc6 Kd3 e2+ Kd4 Qcd7 Kc4 e1Q Rf8 Rd3 Rh8 Nc6 Kb5 Qdf7 Bg2 Nd8+ Bc6 Qfe7 Bd7 Qe4 N1f3 Q8f8 Nfd4 Rc8 Bf6 Nc6 Ndf3 Qff7 Rd8 Qfe8 Ng1 Ra8 Rb8 Nd8 B6e5 Bd5 Rbb7 Rc8 Rb8 Bb7 Ra8 Rb8 Nf6 Qg2 Ng4 Qd5+
RRK5/2Rp3N/1rPpkNb1/b1n3Bb/q1NP4/1b2r1N1/2p5/2rB1qnb w - - 0 1 illegal: No proof kernel
1rN2n2/Np1n2b1/4B1KN/2qbr2n/1PP3n1/3kBRB1/1BpnRp2/6bq w - - 0 1 illegal: No proof kernel
4r1n1/bpB3nn/1N3r2/1BP1n1qp/R3b1q1/5p2/RPNnN1Bk/3K1q1B w - - 0 1 illegal: No proof kernel
3r4/p2rRNN1/5qb1/rqp4n/2PBRR2/B1p1P2R/4b1kb/KB1rnq2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 d4 Qb3 exf6 Qc2 f5 Qd3 f4 Qc3 dxc3 Kd1 Kd7 Kc2 Ke6 d4 Kf5 g4+ Ke4 b4 c5 e3 f5 d5 h5 b5 h3 g5 h2 g6 f3 g7 h4 d6 h3 b6 a3 d7 a2 b7 f4 Be2 f2 Ba3 f1B Bd1 f3 Bc1 f2 Kb3 Bd6 Nf3 Be2 Ba3 f1Q Ne5 Nc6 b8R Nb4 Rb7 Qdf6 d8B Nc2 Nf7 Kf3 Re7 Rh7 Nd2+ Kg2 Nf3 Bf5 Nd4 Ne1 Bc2 Bg6 Nf5 Bf4 Bc7 Rd8 Be5 Bg3 Rd1 a1R Bd4 Be5 Bb1 Bf4 Bb4 Ra5 Ba3 Nf3 Ka2 Qh4 Ne5 Qg1 Re8 Qf1 Nd7 Qfe1 Nf8 Nf6 g8R Nh5 Rf1 h1R Rg7 Rg1 Ka1 Qf6 Nh6 h2 Ne6 Qd2 Rde1 h1Q Rd7 Re7 Ng7 Qc2 Rc7 Qa4 Nf7 Qb5 Rb7 Rc7 Re4 Bg3 Rb6 Rcd7 Rbe6 Ng5 Rff4 Nf3 Re7 Rf1 Rh4 Bb8 Rd1 Bh2 Rh3 Re1 Be5 Qg1 Rf4 Qf1 Rdd4 Rc1 Rde4 Ne1 Bd4 Rd1
7b/1rb1p3/1Rn2q1k/1pRnP2B/2BNb3/1K4b1/pPqN3N/NBq1n1r1 w - - 0 2 illegal: No possible last move, all moves rejected
2bn1r2/2P2kqK/p2BNN2/qR1qp1r1/2Np1r1b/2R2b1R/Bn1P3R/7b w - - 0 1 illegal: No possible last move
5Bq1/3PpBr1/2R1qn2/B2B3r/1p1KNq1b/3Rr3/1P1pb2n/NR2nrk1 w - - 0 1 illegal: No proof kernel
n2R1R1N/4bRB1/B4qnp/p3n1k1/N1rPnq1b/5p1P/K1r1R1b1/4r1B1 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 bxa4 f5 d5 f6 dxc4 Nh3 e4 Ng1 gxf6 Qb3 f5 Qc3 f4 Qf3 exf3 Kd1 Ke7 Kc2 Kf6 d4 a5 e4 c5 b4 h6 Kb2 a3+ Ka2 f2 g4 c3 b5 c4 b6 c2 b7 f3 h3 c3 Be2 f1Q Bf4 c1B Bh2 f2 e5+ Kg5 e6 f5 e7 f4 e8R c2 Bg3 Qf6 Re6 Na6 b8B Nc7 Re8 Be7 Rf8 Bb7 Rh2 Bg2 Bd3 Ra6 Rf7 Na8 Be5 Rc6 Ba6 Rc4 Nc3 Bd2 Rf8 Be1 Na4 Rh7 Ne2 c1N+ Kb1 Nd3 Ka2 Rh8 Rb1 f3 Rb7 Qg1 Nf4 f1N Rd8 Nd2 Ng6 Qe3 Bf2 Qef4 Bg1 Bh4 Rf8 Rh7 Nh8 Ne4 Rd8 Bf1 Re2 Bg2 Rbd7 Rf7 Rf8 Rg7 Rdd8 Rg6 Rf7 Rc2+ Kb3 a2 Rdf8 a1R Rd8 Q6f5 Bg7 Re1 Rdf8 Rc4 Ka2 Rgc6 Rd8 Ne5 Rdf8 Qc1 Rd8 Qf6 Rdf8 Kf4 g5 Qe3 g6 Kg5 Rd8 Qef4 Bf8 Bb4 g7 Ne7 g8R+ N7g6 Bg7 Be7 Rge8 R6c5 Ref8 Rc2+ Ka3 R5c4+ Kb3 R2c3+ Ka2 Rc2+
2B3R1/Bb1q2b1/1q1n2p1/3N1r1p/2nrrb2/kPB5/BRR1nKPp/N2b4 w - - 0 1 illegal: No proof kernel
1r1Rb2n/kbpNpNP1/1N2B3/1Bq3B1/p2r1R2/r5rq/K1Pq1B2/1n4b1 w - - 0 1 illegal: No proof kernel
2n2rB1/2nn1p2/1NKp1P2/p1rN1q2/Rb2r2N/n2kBr2/2b1rP2/N2B3R w - - 0 1 illegal: Other
3RB2q/RR2qb2/bnbpp3/1k1r2b1/1pnB4/1b3N1P/B2RP3/NK2r1b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 Qd3 cxd4 Qe4 g5 Qf5 gxf4 g5 Nf6 Qe6 Ng8 Qg4 hxg4 Kd2 f5 c4 b5 Kc2 d3+ Kb2 b3 a4 g3 h3 b4 a5 f3 a6 e6 c5 d2 a7 d1B g6 f4 c6 d6 g7 g2 c7 Kd7 Ra5 Kc6 Na3 f2 Nb1 Nf6 g8R Qe7 Ra6+ Kb5 Ra3 Nd5 Rg7 Nb6 Rh2 Ba6 c8B Rh5 Rg4 Bh6 Be3 Nc6 Rg8 Rd5 Nd2 Bg5 Rh1 Ne5 Kb1 b2 Nb3 Nec4 Nf3 g1B Bg2 f1Q Na1 Qf2 Rc3 Qh4 Bd4 Qh8 Bb7 Rc8 a8R Rcc5 Rgd8 Rc7 Nh2 f3 Ra7 f2 Nf3 f1B Rc2 Rc6 Rd2 Rc8 Rh2 Rc6 Bh1 Bg2 Bc8 Rcc5 Bd7+ Rc6 Ne1 Bf3 Be8 Bh5 Rf2 Bf7 Rad7 Rcc5 Be4 Rc8 Nf3 Ra8 Bc2 Rc8 Rb7+ Rc6 Ka2 b1B+ Kb3 Rf5 Rc7 Na5+ Kb2 Bg8 Ne5 Qd7 Nc4 Rcc5 Bb3 Be4 Ne5 Rf7 Bc2 Nac4+ Kb1 Bc6 Bb3 Rd5 Ba2 Rf6 Ra7 Qf7 Rh2 Rf1 Rf2 Re1 Rf3 Qfg7 Rff7 Qf8 Rfd7 Bf7 Nf3 Qe7 Rdb7 Bb3+
r2B3B/Kp2p2r/2r5/2n1PpRb/1b1b1RN1/Nk1q1P1p/R4nBb/3n3B w - - 0 2 legal: proof: c4 d5 h4 dxc4 b4 g5 a4 gxh4 Qc2 a5 Qd3 axb4 Qa3 bxa3 g4 Kd7 e4 Ke6 Ke2 h5 Ke3 c5 d4 a2 a5 h3 a6 h2 e5 Kd5 f3 h4 g5 c3 a7 c4 g6 c2 g7 c3 Nh3 Na6 Nf2 h3 Bg2 Kc4 d5 Nh6 g8B Rh7 d6 Bg4 d7 Kb3 Kd4 Nc5 Rg1 h1N Na3 Bh5 Ng4 Nf2 Bh1 Nd1 Bg5 c1R Bf6 c2 Bh8 Bg7 Kd5 f5 Bf7 Bf6 Rg2 Bg5 Be8 Rb8 a8R Bf4 Ra4 Bh2 Rf4 Ra8 Kd4 Ng8 Rg1 Nf6 Rg3 Nfe4 Bf7+ Kb4 Bc4 Nef2 Bf1 Kb3 Kd5 Qa5 d8B Qa6 Bfg2 Qe2 Ne3 Qf1 Rg5 Qd3+ Rd4 Rb1 Ng4 c1B Nc2 Bd2 Na3 Qe3 Rc4 Bb4 Rf4 Rb2 Rc1 Re2 Rc2 a1B Ra2 Bd4 Ra1 Kb2 Kc4 Qb3+ Kb5 Qd3+ Kb6 Kb3 Ra2 Rc2 Re4 Rc8 Rf4 Rc6+ Ka7 Rc1 Nh6 Ra1 Ng4 Bg1 Ka8 Bh2 Nb1 Nc3 Ra7 Ra5 Ra6 Rb5 Ra2 Ncd1 Na3 Rbb6 Kb8 Rc8+ Ka7 Rbc6 Rg7 Rb8 Rg5 Ra8+
R4N1B/B2r1p1b/pN1b2rr/4qB2/pp1R1qPn/1P1b1n2/6RB/3Kr2k w - - 0 1 illegal: No proof kernel
5kB1/5b1n/RpqRrp2/1q2n1n1/3BNp2/b1rB4/Prp1nPNB/4NK2 w - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 h5 d5 h6 dxc4 Qc2 gxh6 Qb3 h5 Qf3 h4 Qf4 exf4 g4 h5 e4 c5 d4 b6 e5 b3 d5 c3 g5 c2 e6 c4 d6 c3 g6 h3 g7 h4 e7 h2 Bb2 c1N Bb5+ Nd7 Nf3 c2 Rg1 h1N Nd4 h3 Rg3 h2 Bf1 Ne5 Nd2 Rh6 Nf5 Ne2 Ne3 Re6 Rd1 Qd7 Nf3 Nf6 g8B Ra3 Ng2 Nh7 Bd4 b2 Rg5 b1R Rh5 Nc1 Bd3 Rc3 Kf1 Ne2 Nfe1 Rb2 Rf5 Qb5 Rd2 Kd7 e8N Bb7 Rg5 Bd5 Nf6+ Kd8 d7 Ba3 Rf5 Ke7 d8B+ Kf8 Ne4 Bb3 Bh4 f6 Rg5 Bd5 Rg7 Bc4 Ra7 Bb3 Ne3 Bd5 Ra6 Nhg3+ Kg2 Nf5 Rd1 Nh6 Kf1 Nhf7 Bg3 Nfg5 N3g2 Rd6 Ne3 Bf7 N3g2 Re6 Rd2 Ng1 Rd1 h1Q Bh2 Ne2+ Bg1 Qh5 Bc4 Qc6 Bh2 Qh3 Be3 Qf5 Rd6 Ng6 Bd4 Qfb5 Bd3 Ne5
1k2q2N/N3pBr1/3pr1pq/4qBrn/1q1P3p/RK1nbbP1/R5R1/1BB5 w - - 1 2 legal: proof: h4 f5 b4 c5 e4 fxe4 h5 a5 h6 a4 Rh3 cxb4 Qf3 Qc7 Qb3 axb3 Rh1 Qd6 Bc4 Qxh6 Bf1 Qh2 Kd1 Kd8 a4 Kc7 d4 h5 c4 b5 f4 d6 f5 g6 c5 h4 f6 b2 Kc2 b3+ Kc3 e3 a5 e2 a6 e1R c6 b4+ Kc4 Bg4 f7 Rh7 a7 Bh6 f8R Be3 Na3 b1Q Rd8 b2 Bd3 b3 Nf3 Nd7 Ra2 Ngf6 Ng5 Bf3 Nf7 Nh5 Nh8 Qe5 g3 Nc5 Rg1 Rg7 Rg2 Rc8 a8B Kb8 Bc2 Nd3 Nb5 Qa1 Bb7 b1Q Na7 b2 Kb3 Re2 Rd7 Rf8 Ba6 Rf5 Bc4 Rg5 Bf7 Re1 Bd2 Qd1 Bc1 Qd2 Bb1 Re2 Nc8 Re1 Rda7 Re2 R7a3 Re1 Bc2 Re2 Na7 b1Q+ Ka4 Qb6 Bb1 Qd8 Kb3 Qac3+ Ka4 Qcc5 Kb3 Qe8 c7+ Ka8 c8B Kb8 Bc4 Re1 Bf5 Qdb4+ Kc2 Qcd5 Bb3 Qdg8 Bc4 Qh7 Bf7 Qh6 Nc8 Qe6 Bh3 Bf2 Bf5 Re4 Na7 Be3 Rd2 Qf6 Rh2 Re6 Rg2 Qe1 Kb3 Qe5 Raf2 Q1a5 Rfa2 Qb4+
1qB4K/B1p5/1p2B3/r3n3/pB1PNRN1/rp2q3/Pkr1nrNb/1b1b1R2 w - - 0 1 illegal: No proof kernel
B2q1B1n/p3pRB1/2Kr1rbp/4p3/3N1q1N/2nqnnRP/1P1B4/2bk2N1 w - - 0 1 illegal: No possible last move, all moves rejected
4N1r1/2r1b1pn/R2n2R1/P1p4n/q2NBpqR/1K2N1nb/1B1k1pP1/1rN5 w - - 0 1 illegal: No proof kernel
K2N4/1NpbppBR/p3Rq1n/b2RqB1b/1r1Bb3/7B/3nP2P/n3kr2 w - - 0 1 illegal: No proof kernel
1nn4N/pp2b1pb/3R1p2/1N1r2BR/1BP2bK1/Rq3bB1/BP5b/r1b3k1 w - - 0 1 illegal: No proof kernel
BBNKr3/Bbpp3b/1nRP1b2/2p5/p4p2/qPN1q1N1/2k2NRn/2rq4 w - - 0 1 illegal: No proof kernel
1q2qr2/b4n1p/k1P2p2/B1r2N2/Bpbn1pRp/KR1N1PN1/N4q1R/6q1 w - - 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 e5 Qd2 gxh6 Rh4 h5 Rh1 h4 Qf4 exf4 Kd1 d5 a4 Kd7 g4 Kc6 e4 Kb6 c4 d3 a5+ Ka6 e5 b6 e6 b3 e7 f6 e8N d4 f3 d2 c5+ Ka7 c6 b2 Kc2 d3+ Kb3 Bg7 g5 d1Q+ Ka3 d2 g6 Be6 a6 Qe2 Nd6 d1Q Nc3 b1Q Nf5 Ne7 Bd2 Bf8 g7 Bc4 g8R Nd7 Na2 Ne5 Ba5 Qe8 Rg4 Nf7 Rh2 Qf2 Ne2 Rd8 Neg3 Rd5 Be2 Qdg1 Bd1 Rc5 Ba4 Qb5 Rb1 Rg8 Nd6 Nf5 Rb3 Nd4 Ndf5 Bd6 Nb4 Rf8 Nd3 Kb8 a7+ Kc7 a8N+ Kb8 Rg5 Ka7 Rg6 Bb8 Rg4 Ka6 Nc7+ Ka7 Ne6 Ka6 Ng5 Ba7 N5e4 Qfg2 Bd2 Q2f2 Nc3 Qb4+ Kb2 b5 Na2 Qa5 Ka3 Qb6 Bc3 Qbb8 Ba5 b4+
2B1N1B1/2pb3p/p2p4/rbPb1rk1/1n3b2/2B2R2/1BnpN1NP/1K2qR1q w - - 0 2 legal: proof: d4 e5 b4 exd4 f4 g5 a4 gxf4 Qd3 b5 Qf3 bxa4 Qb3 axb3 Kd1 Ke7 g4 Kf6 c4 f3 e4 d3 c5 d6 b5 f2 b6 d2 b7 b2 Kc2 Bh6 Ra3 Qe7 Rh3 Na6 Nc3 b1B+ Kb2 Be6 b8B Bba2 e5+ Kg6 g5 f5 Ka1 f4 Nf3 Nf6 Bb2 Rf8 Ne1 Ng4 Rf3 Bad5 Bh3 f1Q Kb1 Ne3 Bf5+ Kh5 g6 Nc2 g7 Qg2 Rg1 Qh1 g8B Bc8 Bfe6 Rf5 Ng2 Qh4 Ne2 Qe1+ Nc1 Kg6 Rgf1 Bg5 Bd7 Kh6 e6 Kh5 Bc6 Bd7 Bb7 Kg6 Bc8 Bh6 e7 Kh5 e8N Kg6 Rh3 f3 Rg1 f2 Rf1 Bf4 Rc3 Kg5 Rf3 Nab4 Ra3 Na2 Rf3 a6 Ba7 Rb8 Bb6 Rb7 Rg1 f1B Ba5 Rb5 Bc3 Be2 Rgf1 Ra5 R1f2 Beb5 Rf1 Qg3 Ne2 Nab4 Rd1 Qh4 Rdf1 Qe1+
2k1n1K1/2n2pBB/1p2q1r1/3p1p2/1P3pNb/N1R2pRN/1nb4P/Nr1n3B w - - 0 1 illegal: No proof kernel
3r2Kb/2B3N1/PQ2pp2/4b3/kb1Q2bn/3N1PqB/6nn/1QN1B1rr w - - 0 1 legal: proof: g4 b5 e4 d5 exd5 a5 a4 h5 c4 bxc4 gxh5 c3 b4 axb4 h4 b3 Rh3 Bxh3 a5 Be6 Ra4 Bc8 Rb4 Na6 Rb8 Nxb8 Ke2 Kd7 Kf3 g5 Ke4 c5 Ke5 b2 d4 g4 h6 c4 d6 Kc6 d7 Kb5 h7 g3 d5 c2 a6 g2 f3 Qc7+ d6 Ka4 d8B c3 h5 Bg4 h6 e6 Ne2 g1N Na3 b1R Bd2 Ne7 Kf6 Nf5 d7 Nc6 Nc4 Nh4 Be1 Qg3 Nc1 Bb4 Kg7 Ne2 Bh3 Nf4 Ne5 Nfg2 Ned3 Ne5 Bc7 Rae8 d8Q f6 Qd4 Rd8 Ne2 Ra1 Qb1 c1B Qb6 Bca3 Nec1 c2 Qd4 Bb2 Qb6 Rhe8 h8N Rg8+ Kh7 B2c3 Nf7 Bd4 Nd6 Rg6 Nb3 c1B Ne8 Bce3 Kh8 Bg5 h7 Bh6 Nbc1 Bg7+ Kg8 Rh6 h8Q Bdc3 Qh7 Bh8 Na2 Bd4 Qb2 Rd1 Nac1 Bdc3 Bf2 Rg1 Be1 Nc4 Qb1 Nce3 Qf5 Nf1 Qf4 Nf5 Qc4 Be5 Qcd4 Nge3 Bg2 Rhh1 Bh3 Nh4 Bd2 Nh2 Be1 Rd7 Ng7 Neg2 Bc3 Rd5 Be1 Rd8+
b1Q2qB1/2n2rp1/q2R4/1qq2P2/2RbBQ2/1q3p2/1k1BnbRP/3K2Q1 w - - 0 1 legal: proof: d4 h5 a4 b5 axb5 c5 Qd2 cxd4 Qd3 Bb7 Qd1 Bc8 b4 a5 g3 a4 g4 Ra5 bxa5 hxg4 f4 e5 f5 Qf6 Nc3 Qe7 Nd5 Qd8 Nf4 exf4 e4 f6 e5 Nc6 e6 Nb8 Nf3 Qe7 Ne5 fxe5 Kf2 Qf6 Ke1 Qd8 c4 Ke7 a6 Kf6 c5 d5 c6 e4 a7 Ke5 a8Q e3 b6 d3 c7 Kd4 b7 Kc3 e7 f3 e8R e2 Re3 a3 Ra2 g3 Ra1 a2 Bd2+ Kb2 Rc1 a1Q Rc3 g2 Re6 g1Q Qa5 d4 Qa4 Nc6 b8Q+ Bb7 c8B Nf6 Re7 Ne8 Qc4 Qa6 Ra3 Nc7 Rf7 Bc5 Qca4 Rf8 Rf6 Rf7 Qa7 Qf8 Be6 Ba8 Qb7+ Qb5 Be3 Qg6 Rg1 d2+ Kf2 d3 Rc3 Qh6 Qf4 Nd4 Rg2 Bb6 Qe1 d1Q Bd2 Qdb3 Qc8 Qbc5 Bc4 Qbb5 Rd6 Ba7 Qd1 e1B+ Ke3 Bh4 Be2 Bb6 Qg1 Be1 Bd1 Qf6 Bc2 Ne2+ Rd4 Q6d6 B4b3 Ba7 Rc4 Qda6 Bb1 Bh4 B3a2 Bf6 Kf2 Be5 Ke1 Bf6 Rd6 Bd4 Kd1 Bf2 Be3 d2 Bc2 Qca3 Be4 Bd4 Rc3 Qab4 Be6 Q4c5 Rc4 Re7 Bg8 Rd7 Qe5 Rf7 Qf4 Ka2 Kc2 Ka3 Kd3 d1Q+ Bd2 Qa1 Kc2 Qa2+ Kd1 Kb2 Rgg6 Q2a3 Rg2 Qab3+
R2Qq3/4Rnk1/2bBbr1r/3r4/1bPnr1nB/1b2bbQ1/B2P4/2QR1K2 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 c4 e5 h4 gxh4 Nc3 exf4 Nf3 d5 Ne5 d4 Nc6 dxc3 axb5 Qf6 b6 Qd4 b5 Qd8 Nb4 cxb4 e4 f5 g4 Kf7 e5 h5 b7 a5 g5 f3 g6+ Kg7 b6 h3 e6 a4 e7 f2+ Ke2 f4 e8R b3 Rh2 a3 Qe1 a2 Re6 h4 Re8 b2 Rb1 c2 Ra1 b1B Re5 f3+ Ke3 Nh6 Qd1 Ra5 Re6 Rd5 Bd3 f1N+ Kf2 Qe8 Qe2 Ne3 Be4 Nf7 Ba3 c1R Qd3 Bc2 Rf6 Bb3 Bc5 Be6 Rh1 h2 Bd6 h3 Qc2 Nc6 b8B Nd4 b7 Re1 Qc1 Rh6 Bb1 Be7 Rg1 h1B Rf5 h2 Re5 Bf8 Be7 Bg2 Bh4 Bb4 Bd6 h1B Rf1 Ng4+ Kg1 Bc5 b8Q Re4 Rd1 Bb4 Qa8 Ne3 Qd8 f2+ Kh2 f1R Kg3 Bc8 Re7 Be6 Kh2 Rf6 Kg1 Bf3 Kf2 Kg8 g7 Ng4+ Kf1 Rh8 Bc2 Kh7 g8Q+ Kh6 Rb1 a1B Bd3 Bac3 Ra1 Bc5 Ra3 B3b4 Ra8 Ba7 Qg5+ Kh7 Qe5 Kg7 Bb1 Rh6 Ba2 Nf5 Qg3 Be3 Be5 Nd4 Bd6 Ree5 Ra5 Be4+ Qf4 Rb5 Bf2 Bc6 Ra8 Rbd5 Bh4 Bf3 Qg3 Re4
8/3n2pr/Rq3Qbb/BQ2qrq1/2PP4/1r1RR3/1rK2Qrn/B3bB1k w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 c4 e5 g4 hxg4 Nc3 exf4 Nf3 d5 Ne5 d4 Nc6 dxc3 axb5 Rh3 b6 Rh4 b5 Rh8 Nb4 cxb4 e4 Kd7 h4 Kd6 b7 Ke5 h5 a5 b6 f5 h6 c2 d3 b3 Kd2 f3 h7 Kf4 e5 Kg3 e6 b2 e7 b1R e8Q a4 Qe3 f4 Rh4 a3 Qe7 f2 Qe3+ f3 Qe4 a2 Rh5 Ra3 Qde2 Bf5 Qe1 Nf6 Q4e3 Rab3 Bg2 Bg6 Qe8 Nbd7 b8R Bb4+ Ke3 Qe7+ Re5 Kh2 b7 f1Q Qf7 g3 Bh3 g2 Rd8 g1R b8B f2 Bb2 Rg2 Bc7 Kh1 Ba5 c1B+ Kd4 Bf4 Re3 Ng4 Qf6 Qg1 Qe2 f1R Qf2 Bh6 Bc3 Re8 h8Q Nh2 Qhf8 Qe6 Qc5 Rh8 Qb5 Rh7 Bb2 Be1 Bbc3 Rg5 Bb2 Qg3 Bbc3 Rg1 Bf1 Rf5 Bb2 Rg2 Bbc3 Nb8 Rd6 Qg5 Ra6 R1b2 Rd1 Rb1 Ba1 Qd6+ Ke4 Qb6 d4 Nd7 Bb2 a1Q Rdd3 Qa2 Ba1 Qd2 Rc3 Qc1 Kd3 Qa3 Kc2 Qe7 Red3 Qe8 Re3 Qe5 Rcd3 R1b2+
b1K2R2/2qR3N/2p4P/5QQq/rqq2N2/1np1b3/nN1rQRP1/kr3q2 w - - 0 1 illegal: No proof kernel
3NbQ1K/5pNB/2n1r1r1/3nrP1Q/B1qQNp2/q2PB1b1/2q1q3/5k1n w - - 0 1 legal: proof: c4 a5 h4 d5 a4 dxc4 h5 b5 axb5 g6 b6 gxh5 Qb3 h4 Qc2 Qd6 Qd1 Qd8 g4 e5 f4 Nc6 b4 Qe7 f5 Qg5 b5 Qf6 Ra4 Qd8 Rb4 axb4 Rh2 Nb8 Rf2 Bc5 Rf3 Bf8 Rf4 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 h3 d3 c3 b7 h2 g5 h1R g6 h4 b6 b3 g7 b2 Nd2 b1Q Bb2 c2 Bc1 h3 Be2 h2 Qe1 Bd7 Nh3 Ne7 Kf6 Kd4 g8Q Ke3 e5 c5 e6 c4 Qg4 c3 Qf1 Be8 Qh5 Ra6 Ng5 Nbc6 b8Q Rg1 b7 h1N Qc8 Qb4 b8N Qc4 Qfh3+ Kf2 Nde4+ Ke1 Be3 c1Q Qd7 c2 Qd4 Qb2 Qh6 c1Q Bh5 Qf2 Bg6 Qd6 Bh7 Q1c2 Q3h5 Qfe2 Qg7 Qa3 Qgh6 Ne5 Nc6 Kf1 Nd8 N5c6 Qg7 Ra5 Qg8 Re5 Qg7 Nc8 e7 Nb6 Nge6 Rg4 Qg8 Bh6 Qf8 Bg5+ Kg7 Nd5 Bg6 Rh6 Bh7 Rg3 Kh8 Bh4 Ng7 Rd6 Bg6 Rde6 Bh7 Bd7 e8B Rgg6 Qh6 Be1 Qh5 Bg3 Qh4 Ncb4 Qh5 Ba4 Bc6 Bb5 Ba8 Bd7 Bc6 Be8 Ba4 Nc6
Qr2k3/P5pp/1q2B1RR/2B2qPK/4pRn1/bB4q1/1r4nb/nn1Q2Q1 w - - 0 1 illegal: No proof kernel
n2br3/pbp2kN1/1QNn4/1b3prK/7Q/2Bn2N1/P1Pn1q2/1b1BQ1qB w - - 0 1 illegal: No proof kernel
1brn2r1/1pn4p/2pR2p1/2Q3bq/1pPQp1QB/1b2b3/1R1R3P/K3BB1k w - - 0 1 illegal: No proof kernel
3KqnB1/2nnNQQb/P1p3r1/3rQN2/1k1bP3/1pRQ3q/8/r2Q4 w - - 0 1 illegal: No possible last move
2kq2R1/Q3brn1/1R2RR1P/KR1b4/2nn2pQ/n4B2/n1q2P2/n4Nn1 w - - 0 1 legal: proof: d4 a5 b4 b5 e4 f5 a4 fxe4 axb5 c5 b6 cxd4 b5 Bb7 Qe2 Ba6 Qd1 Bc8 Bg5 h6 Nc3 hxg5 Nd5 g4 Nb4 axb4 g3 Ra3 Qc1 Rf3 Qd1 Rf4 gxf4 Bb7 f5 Bc8 Kd2 d5 h4 Kd7 c4 g5 b7 e5 b6 g3 f6 d3 h5 d4 f7 g2 h6 b3 c5 e3+ Ke1 e2 Kd2 e1Q+ Kc1 e4 Kb2 d2 Ka3 b2 Kb4 b1N Ka4 g4 Ra2 e3 Bb5+ Nc6 b8R d3 b7 e2 Nf3 g1N Rh3 Nf6 Nd4 Be7 f8R Rh7 Re3 Nh5 Rf6 Rf7 Rb2 Na3 Nf5 Ng7 Ree6 Qf1 Rb4 e1N Ng3 Qe2 Nf1 Nec2 Qc1 d1N Qg5 d2 Qh4 Qe4 Be2 N6d4 Bf3 Nde3 Rb5 d1N c6+ Kc7 Ka5 Na1 Rb6 Nc3 Rb5 Na2 Rb6 Qh8 Rb5 Kd8 c7+ Kd7 Rbb6 Qd8 Rb5 Qc6 Rb6 Qc2 Rb5 Ke8 Rbb6 Bd7 c8R Ba4 Rc5 Kd7 Rb5 Bb3 Rc8 Bd5 b8Q Qdc7 Rf8 Qd8 Qa7+ Kc8 Rg8 Nec4+
B4q2/1P3rq1/4Q3/1nBnp1qP/1B1BKNB1/4Q3/1qn1Rb2/k1q1q2r w - - 0 1 legal: proof: d4 a5 b4 b5 e4 f5 a4 fxe4 axb5 c5 b6 cxd4 b5 Nf6 Ra4 Ng8 Rc4 Nf6 Rb4 Ng8 g4 axb4 f4 h6 f5 Ra2 Nd2 Ra4 Ndf3 Bb7 Ng5 hxg5 Qd2 Bd5 Qd1 Be6 f6 Bf5 gxf5 g4 Bd2 Ra5 Bc1 Ra8 Kf2 Kf7 c4 g5 h4 d5 c5 e5 b7 d3 Ke3 d4+ Kd2 g3 c6 g4 c7 e3+ Ke1 e2 Kd2 e1N c8B b3 b6 b2 Qa4 b1Q Bg2 Bc5 Rh2 Ne7 Qc2 Nbc6 b8Q Na7 Bb2 Nb5 Ba3 Nd5 Ba6 Qb2 Bc8 Qf8 Rh1 Ra7 Bf3 g2 Rh2 g3 Ne2 g1Q Qd6 g2 Bb4 Rh6 Nf4 Re7 Kd1 d2 Qd3 Nc2+ Ke2 Qgc1 Bb7 g1Q Ba8 Qg5 b7 d1Q+ Kf2 Ba7 Bg4 Qg1+ Kf3 Bb6 Qe3 d3 Qc6 d2 Re2 d1Q Ke4 Qde1 Bc5 Rh5 Bd4 Qgg7 Bf3 Q1g5 Qe6+ Ke8 f7+ Kd8 f6 Kc7 Qf5 Kc6 Bg4 Bc5 Qc8+ Kb6 Qe6+ Ka5 Rd2 Ka4 Re2 Qd8 f8B Rf7 Bd6 Qdf8 Be7 Ba7 Bb4 Rh8 Kd3 Kb3 Ke4+ Ka2 Bbc5 Rd7 f7 Ka1 Bb4 Qfd8 f8B Rf7 Bfc5 Qdf8 Ng2 Rh6 Nf4 Rhf6 Nh5 Rf1 Nf4 Rh1 h5 Ne7 Qc3 Bb6 Bd6 Rh2 Bf2 Be3 Bdc5 Rh1 Qd3 Nd5 Qb3 Bd2 Bfd4 Be3 Qd3 Bg1 Qe3 Bf2
5b2/nRN2n1N/q1P3Q1/2B1r1nq/P3p3/1p1N1pqn/2K2b2/kN2N2Q w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a5 Qd3 axb4 Qd1 d3 f4 b5 f5 d5 Bd2 e5 Na3 d4 Bc1 Be6 Nb1 Ra6 Qh5 Rd6 Qd1 Rd5 exd5 Qd6 Qg4 Qd7 Qd1 Qd8 fxe6 g5 a4 h6 g4 Na6 e7 Kd7 Nd2 Nb8 Ra3 Ke8 Rc3 Kd7 Rc6 Qc7 Bh3 Qd8 Rf6 h5 Rf4 gxf4 g5+ Ke8 Bg4 hxg4 Ba3 Kd7 Bb2 Ke8 Bc1 Kd7 e8Q+ Kd6 c4 Kc5 h4 f5 d6 g3 h5 e4 g6 f3 g7 f2+ Kf1 f4 d7 b3 h6 Kb4 c5 Kc3 h7 b4 Nh3 b2 Rh2 b1N Nc4 d2 Ke2 g2 Na3 g1B Qf7 Qg5 d8N Nh6 g8N Qg3 Qe8 Nc6 Qg6 Na7 c6 Nf7 Nf6 Rg8 Qe1 f1Q+ Kd1 Qa6 h8N Bf2 Ng5 Kb3 Bb2 Ka2 Kc2 d1N Qh1 Nd2 Nde6 Nf3 Nc7 Rg7 Bc1 Ka1 Rh7 Rg8 Be3 d3+ Kb3 d2 Nb1 Rg7 Bc5 Rg8 Kc2 Rg7 Nh3 N3g5 Ng1 Rg8 Nf3 Rg7 Ne1 f3 Qf5 Rg6 Nd7 Re6 Qg6 Re5 Rg7 Nc3 Rh7 Ne2 Nf6 Ng1 Rg7 N1h3 Nh7 Be3 Qh5 Bf2 Ng6 Qc8 Nf4 Qcg4 Qg6 Qh5 Kb3 d1Q+ Kc4 Qh6 Nfd3 Qe2 Kb3 Qf1 Kc2 Qh5 Nf4 Qb5 Nfd3 Qa6 Ne6 Nd6 Rb7 Ndf7 Nc7 b3+
K1Q5/RnQ4p/1Pn3P1/2R2p1k/1R1N1q1p/1pB1p2b/1p2p3/1R1b2bR w - - 0 1 illegal: No proof kernel
1Nnb1k1q/r2n1P1q/2b1Q2R/1NbN3K/PQq2bqB/2N5/3rqN2/1b6 w - - 0 1 illegal: No possible last move, all moves rejected
2r3bN/1Q1n2qr/1Q1q1bP1/2P1r1k1/q1n1nNN1/B1q5/1nRr1N2/4K2N w - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 a3 h5 Bh3 g6 g5 b5 Bg4 hxg4 a4 f3 axb5 Rh7 Ra6 Rh4 Rf6 Rh8 Rf5 gxf5 Be3 f4 Bd2 Rh3 Bc1 Rh8 e4 Ke7 c4 d5 h4 f5 c5 a5 b6 a4 e5 d3 e6 a3 h5 d2+ Kf2 d4 b7 g3+ Kf1 d3 b5 f2 b6 a2 h6 a1Q h7 Nf6 Qe1 d1R Rh4 d2 Nf3 g2+ Ke2 f1R Qf2 g1Q Qe1 Ne4 Rh2 Qa4 Nh4 Qd6 Rg2 Bg7 Ba3 Bf6 Nc3 Nd7 b8Q Bb7 Rh2 Bd5 Qb7 Rac8 Ng2 Rhe8 h8N f3+ Kd3 f2 Ke2 Ba2 Nf4 Qg3 g6 Rh1 Qg1 f1N Qd4 Bd5 Qb4 Ne3 Rf2 Nc4 Qb1 Rdf1 Nd1 Rh7 Rg2 Rfh1 Nf2 R1h2 Nh1 d1N Rf2 Ndb2 Ke1 Qd3 Rc2 Qd4 Nf7 Rd2 Nh8 Nd1 Qb5 Ndb2 Q5c6 Qc3 Qcc7 Kf8 e7+ Kg7 Qcb8 Kh6 Q8c7 Rf8 e8N Kg5 Qcb8 Bg8 Q8a7 Bd4 Nf6 Rfe8 Ng4 Bf6 Ngf2 Re5 Qc6 Qd5 b7 Qe6 b8N Qd6 Nh5 f4 Qcb7 f3 Nf4 Be6 Nc6 Bf7 Qab6 Bg8 Ng4 f2+ Kf1 Qf8 Nb4 Qg7 Nbd3 Qd4 Kg2 Qd6 Kf3 f1Q+ Ndf2 Qc1 Kg2 Nd1 Kf1 Qa1 Ke1 Qc3 Qd5 Ndb2 Qa8 Rc7 Qab7 Rc8
1N1q4/2RNn2K/4brn1/b1Q2Q2/3NNq1N/8/3PrpqP/k1Bnbnb1 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 g5 Bh3 gxf4 g5 e5 c4 dxc4 Bg4 hxg4 Ra3 e4 Rf3 exf3 axb5 Bf5 Na3 Be6 Nb1 Bc8 Kf2 Kd7 e4 Kd6 b6 f5 b5 Kc5 g6 Kb4 b7 c5 b6 a5 e5 a4 e6 a3 g7 c3 e7 a2 e8N a1B Qc2 g3+ Ke1 c4 Na3 g2 Kf2 Ra6 Nh3 g1B+ Ke1 f2+ Ke2 f1N Kf3 Nc6 b8Q Bd6 b7 Nge7 g8N Be6 Nc7 Ng6 Qd3 Kb3 Ng5 Ka2 Qe4 c2 Qe2 c3 Ne8 Nce7 Nh6 Ne3 Qe1 Nd1 Nc7 Re8 Qa7 Bb2 b8N Ka1 Ke2 f3+ Kd3 f2 Qe4 f1N Nd7 f4 Qc5 f3 Qef5 Bg3 Ke4 Be1 Nab5 Ba3 Nd4 Bb4 Nc6 Rb6 Nd4 Ba5 Na6 Rd6 Nab8 Rc6 Ba3 c1Q Bb2+ Ka2 Ba3 c2 Bb2 Qb1 Ba3 Qb4 Bc1 Bgf2 Rg1 Ka1 Rg4 Bg1 Rg3 f2 Rc3 Nh4 Ke5 Qc4 Kf6 Nhg6 Kg7 Qd5 Kh7 Qg2 Ne4 Rd6 Ba3 c1Q Rc2 Qb1 Bc1 Qb4 Nc3 Bb6 Ndb5 Bb3 Qcd5 Qh3 Qfe6 Qf4 Nd4 Qg2 Nhf5 Ng8 Nh4 Ba5 Qef5 Re2 Ne4 N8e7 Rc7 Rf6 Qc5 Be6
4B3/2n1r2n/B1rr1nPk/2B1Q1n1/Q3b1rB/b3q2B/2RpP3/b2q1NK1 w - - 0 1 illegal: No possible last move
3rr2n/nq1Q2QQ/Qp2K2B/7N/r3B1Qn/nP3r2/3bRbP1/b1k2b2 w - - 0 1 legal: proof: c4 e5 f4 exf4 a4 g5 h4 gxh4 b3 d5 Na3 a6 Nb5 axb5 cxd5 b4 Ra3 bxa3 Qc2 a2 Qd1 a1B Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 Ke5 Kc3 e4 h5 d6 f5 a5 c5 d5 f3 d7 f2 d6 b6 a6 h3 a7 h2 Ba3 c4 Bb4+ Kb2 Qf3 h4 Ba5 f4 Ke6 c3 e5 c2 Kd5 c1B e6 h3 e7 Nh6 e8Q Nf7 Qe1 Bd2 Qe6 Nc6 Bc4 f1N Qe5+ Kc1 Qeh5 Qe7 d8Q Ba6 Be2 Qb7 d7 Ne3+ Ke6 Nc2 Qdh4 Na3 d8Q Bc5 Qe5 Re8+ Kd5 Nh8 Qd7 Rad8 a8Q Bf2 Qfg4 f3 Bd3 Na7+ Kd6 Bc4 Be4 Bf1 Qhe7 Bfd4 Q5g7 f2 Ke6 Bc5 Nf3 Bce3 Rg1 h1N Ng5 h2 Nh3 Ng3 Nf4 h1R Nh5 Nf5 Bc3 Rh3 Be5 Rf3 Bf4 Nh4 Bh6 Rf5 Rh1 Ra5 Rh3 Bed4 Re3 Ra4 Qh7 Ba6 Qhg7 f1R Re2 Rf3 Qh7 Bf2 Qhg7 Nc6 Qa7 Bd3 Qa6 Na7 Qh7 Ref8 Qeg7 Bb5 Re3 Bf1 Re2 Rfe8+
1knqN2b/Nqp1Rb2/Q1P5/1NK3P1/Bn1Nq3/n1n2bn1/1rQ2b2/2N5 w - - 0 1 legal: proof: e4 d5 b4 dxe4 f4 a5 Qe2 axb4 Qd1 e3 a4 e5 Ke2 g5 Ra2 b5 Ke1 e4 Qe2 Ra6 Qf3 Re6 Qd1 Re5 fxe5 Qd6 Bd3 Qd4 Bf1 Qd8 Ra3 h5 Rc3 Bd7 Rc6 Bh3 Rf6 Bc8 Rf4 gxf4 g4 h4 Bb2 Ke7 Bd4 Rh5 Qe2 Qd7 Kd1 Qd8 Kc1 Ke8 Qd1 e2 Bf2 Rh8 Bg3 hxg3 Kb2 Kd7 Kb3 e1Q d4 f5 c4 f3 h4 e3 h5 f4 c5 f2 h6 f3 a5 e2 a6 g2 a7 Bg7 a8Q Ne7 h7 Nbc6 g5 Bb7 d5 Nc8 Nh3 g1Q d6 Qg2 Nf4 Rf8 Rh6 Bh8 Nd2 Qh1 Bg2 f1N Ne6 f2 Qc2 Ng3 Nd4 f1B Qa6 Rf2 Re6 Ba8 Bd5 Bh3 Re8 Be6 Bc4 Bf7 Bd5 Bg7 h8N Qe4 Re6 Q1h1 Bc4 e1B Be2 Be8 Nf7 Bh8 Bd1 Rg2 Rg6 Bf2 Rg7 Bb7 Rh7 Nb6 e6+ Kc8 d7+ Kb8 e7 Nc8 Nd6 Bf7+ Kb2 b3 Kc3 b2 e8N Ba8 Nb3 Nb4 Nc1 Rh2 Rg7 Qb7 Rh7 Qhe4 Rg7 Bb3 Re7 Bf7 Qb1 Rg2 Ba4 Rh2 Qc2 b1N+ Kb2 Nc3 Ka3 Nbd5 Kb3 b4 Kc4 b3 Nb5 b2 Nf6 Qe8 d8N Qd7 Ne8 b1N Ne6 Qd8 Na7 Qe5 Ndb5 Qe4+ Ned4 Nb4+ Re6 Be3 Qd1 Rb2 Qc2 Bg6 Re5 Bf2 Re7 Bf7+ Qe6 Qb6 Qd1 Qe3 Qd2 Bf3 Qc2 Bg6 Qd6 Qb7 Qa6 Qee4 c6 Bf7+ Kc5 Na3
RQQ1rkn1/Q1qp4/2nbbnq1/2NP3n/n1bP4/2r1BQ2/3Q1p2/2R2K2 w - - 0 1 legal: proof: g4 g5 b4 h5 d4 a5 f4 gxf4 g5 e5 Bh3 Qe7 Bg4 e4 Nd2 axb4 Ndf3 hxg4 d5 Qf6 c3 Qd4 cxd4 exf3 h4 b5 e4 c5 a4 f5 e5 c4 a5 f2+ Kf1 g3 a6 b3 e6 c3 g6 c2 h5 b4 e7 b2 g7 b1N a7 b3 h6 b2 h7 g2+ Ke2 f1N Ra3 f3+ Kf2 f4 Ne2 g1Q+ Ke1 Qg6 Ng1 f2+ Ke2 Ng3+ Kf3 f1N Kf2 f3 Bf4 c1Q Ke1 Ba6 Ne2 Ne3 Nc3 Bc4 Ne4 Nh5 Nc5 Ng4 Be3 Nc6 Ra5 Rb8 a8Q Rc8 Qa7 N4f6 Kf2 Rc7 Qd2 Nc3 Rg1 Qcc2 Rc1 b1B Ra1 Na4 Ke1 Bb3 Kf1 f2 Ra3 Qc3 Ra1 Bf5 Ra3 Nh6 g8Q Be6 Qg7 Nhg8 Ra2 Qb1 Qg4 Qg6 Qf3 Kf7 e8Q+ Kg7 Qeb8 Bd6 Qbb7 Kf8 Qbb8+ Rc8 Rb2 Re8 Qc8 Ba2 Rb8 Qa5 Ra8 Qc7 Qcb8 Bc4+ Nd3 Nge7 Qc8 Rg8 Qcb8 Rg7 h8Q+ Ng8 Qc8 Qf7 Qcb8 Rg3 Qc8 Qg6 Qcb8 Ba2 Nc5 Bc4+ Qfe2 Rd8 Rd1 Ke8 Bf4 Rc3 Rc1 Kf7 Bh6 Nge7 Be3 Rc8 Qd8 Neg8 Qe8+ Kg7 Qd8 Qb7 Qdc7 Re8 Qbc8 Kf8 Qc7b8 Ba2 Qed1 Qc7 Qf3 Bc4+
2qQ2Qr/1Pn1prBB/3K4/3b2rN/3bp3/2PB3b/n2Bb2k/R2n2qB w - - 0 1 illegal: Other
6n1/1p1bq2p/B1Q1q2Q/1NnP1K2/rQQrP1QB/2b5/2nr3k/1q1n1R2 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1bB1n1/r3R1n1/1NB2BP1/1q2qp2/1k1B1P1q/2pr2Q1/bB2bKrp/8 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 exd4 a4 d5 axb5 g5 h5 dxc4 g4 h6 b4 Rh7 Rh4 Rh8 Nd2 Be6 Ndf3 Bd7 Rh1 Bf5 Nh4 Bc8 Ra3 Nd7 Rg3 gxh4 g5 Nb8 g6 Qf6 Rg4 Qd8 Rg5 hxg5 e4 Kd7 f4 Kd6 b6 f5 h6 c5 b5 a5 h7 a4 b7 c3 b6 c2 Ba6 c4 e5+ Kc5 e6 d3 e7 h3 e8B g4 Qe2 d2+ Kf1 d1B Bab5 h2 Qe3+ Kb4 Qf2 a3 Qg3 a2 Bbc6 a1Q Ba4 Nc6 b8Q Ra7 b7 Be2+ Kg2 Nd4 Beb5 Be6 Qc8 Be7 Bb2 c1Q b8B Qcb1 Kf2 c3 Bc7 Ba2 Qb8 Ne6 Bb6 Ng7 Bc6 Qc7 Be8 Qe5 Nf3 Bd8 Bac6 Qd3 Bd4+ Qdb5 Re1 Qd1 Qg1 Qa1 Nd2 g3+ Kg2 Qc1 Nc4 Qce3 Qf2 Qe7 Qf3 Q3e5 Nb6 Qh4 Qe3 Bec4 Kf3 g2 Qf2 g1R Qg3 Bf1 Re3 Be2+ Kf2 Ne7 Re4 Rf8 h8B Ng8 Re3 Rff7 Re4 Rfd7 Re3 Qe4 Bf6 Rd3 Bd4 Qee5 Re4 Ne6 Bf6 Ng7 Re3 Qd6 Re6 Qde5 Re7 Rg2+
3q4/2p3nk/4bbn1/1b1P1Qqq/3r1pNR/2r1BQPQ/2Q3p1/1R1r2QK w - - 0 1 illegal: No possible last move
n7/Qq2K1nR/r2PR2Q/5R1p/1B1q2bP/2pkN1r1/p2n2qq/bR2R3 w - - 0 1 legal: proof: b4 e5 a4 d5 f4 exf4 c4 dxc4 e3 b5 axb5 Ke7 Qh5 Kd7 Qd1 Ke8 Nc3 g5 Nce2 f3 Nf4 gxf4 Bd3 Ke7 Bc2 Ke8 Bb3 cxb3 Kf2 Kd7 d4 Kd6 h4 Kd5 g4 Kc4 d5 f5 b6 a5 b5 c5 b7 h5 g5 a4 g6 b2 e4 b1Q b6 a3 e5 a2 g7 Nf6 g8R Na6 b8R Ne8 b7 Nac7 e6 Bg7 e7 Ra6 Nh3 Na8 Rf8 Rg8 Bd2 Kd3 Qc1 c4 Re1 Qb4 Rb1 Ba1 Rf7 Rg3 Rh7 Ng7 e8R Qbe7 Bb4 c3 Rf8 Qdd6 Rf6 Qe4 Re6 Qd4+ Kf1 Bd7 Rf8 f2 b8Q Q6b6 d6 Qb7 Rf7 Bc6 Rg6 Bf3 Qa7 Bg4 Rf8 Rf3 Kg2 f1Q+ Kh2 Re3 Rf7 f3 Re6 f4 Rf5 f2 Qd2+ Kc4 Qc1 f3 Kg3 Qe2 Nf4 f1Q Ng2 Rd3 Qh6 Qc2 R6e4 f2+ Kf4 Rg3 Kg5 Kd3 Re6 Qh1 Ne3 f1N Kg6 Qhh2 Kg5 Qcg2 Kg6 Nc7 Kf7 Nd2 Ke7 Na8+
2N2nn1/3KnQP1/4p3/N1Nk1PR1/1q2pp1b/2Br3b/1rNQ3b/n1b1N3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 g4 h6 b4 Qa5 f5 Qd8 Bh3 Qa5 Ra3 Qd8 Rf3 h5 Rf4 gxf4 g5 Rh7 Bg4 hxg4 Be3 Rh6 Bc1 Rh8 Ke2 a5 h4 d5 c4 Kd7 h5 Kd6 h6 e6 h7 g3 g6 d3+ Kd2 d4 c5+ Kd5 g7 g2 b6 a4 c6 a3 b7 a2 c7 a1B b5 Be7 b6 Ra3 Rh3 Bh4 Rg3 Nd7 b8N Ba6 c8N Qf8 b7 Bb2 Nf3 g1B Nc6 Bh2 b8N Qc5 Rg4 Nf8 Nd7 Rc3 Qe2 Qb4 Nc5 Bc4 Na5 Ra3+ Kd1 d2 Kc2 d1N Ne1 Nc3 Qd2 Bf1 Rg5 Rb3 Na3 Bh3 Qg2 d3+ Kd2 Qb5 Nac2 Ba3 Bb2 Qb4 Ba1 Rb1 Qe2 Rb2 Qh5 Ke5 Qf7 Nd5+ Kc1 Nde7 Kd1 Qb7 Kd2 Kd5 Kc3 d2 Qe8 Ra2 Qf7 Bc1 Bb2 Qb8 Ba1 Qd6 Kb4 d1N Kb5 Ne3 Bc3 Ra3 Be5 Rd3 Bc3 Qd7+ Kb6 Qa4 Kc7 Qb4 Kd8 Nc4 Kc7 Nd2 Kd8 Nb3 Kc7 Nf6 Kd8 Rg8 h8Q Na1 Qhh5 Rh8 Qd1 Nfg8 Qe2 Rh6 Qd2 Rg6 Rh5 Rg3 Rg5 Re3 Bd4 Rb3 Bc3+ Rd3 Kc7 Rb2 Kd8 Nh7 Kd7 Nf8+
1N2BR1r/B7/bPppk3/1r1n3P/p1Q1pQ2/3qr1B1/r2b3n/3B1BKn w - - 0 1 illegal: No proof kernel
3bn3/4QQpq/1B1q1n2/1p1n1bP1/2pQP2N/2K3qb/Q4p1Q/1Bk3rR w - - 0 1 legal: proof: d4 h5 g4 e5 c4 a5 b4 b5 a4 Qh4 e4 Qd8 g5 axb4 d5 Ra6 Ra3 Re6 Rg3 Re7 Rg4 hxg4 Nd2 Re6 Nb3 d6 Nd4 exd4 f4 Re5 c5 dxc5 fxe5 c4 Kd2 Kd7 h4 c5 d6 Ke6 d7 f5 a5 g3 h5 b3 a6 d3 h6 g2 a7 c3+ Ke1 f4 a8Q f3 h7 c4 Qa3 d2+ Kf2 c2 Ke3 b2 Kd4 b1B Kc3 f2 Rh6+ Nf6 Rh3 Ne8 Qe2 d1N+ Kd2 Be7 Qc5 Ne3 Nf3 g1Q Qd1 Qg3 Rh1 Qb6 d8Q Nd7 Qcc7 Ndf6 Qb8 Qd6+ Bd3 Bd7 Qa5 Bd8 Kc3 Bc8 Bd2 c1Q+ Bc2 Bd7 Qa2 Bc8 Qc7 Qca3+ Bb3 Bd3 Nh4 Bf1 Qda1 Qc1+ Bc2 Bh3 Be1 Qcd1 Bb1 Qh5 Qc5 Rg8 h8Q Qh7 Q1b2 Rf8 Bd2 Rf7 Qd4 Ra7 Qba3 Ra4 Be1 Rb4 Qaa7 Rb2 Qb7 Re2 Bd2 Re1 Bc1 Rf1 Ba3 Rg1 Bc5 Bf5 Qbd5+ Kd7 Qf7+ Kc6 e6 Bh3 e7 Bcd7 Ba3 Bdf5 Qd1 Kb6 Qdd2 Ka5 Qd4 Nc7 e8Q Ka4 Qee7 Nce8 Qad2 Bf1 Bb4 B1h3 Ba5 Ka3 Bb6 Bhg4 Bd3 Qh6 Ng2 Qg6 Qh6 Qh7 Qh2 Bh3 Bc2 Ka2 Nh4 Ka1 Bb3 Kb1 Qa2+ Kc1 Bc2 Qg4 Bd3 Qgg3 Bb1 Ned5#
r1Qn1n1R/2nn3p/b1qbR3/pN2BR2/Pp5R/2Rp3P/K2kbQ2/6b1 w - - 1 2 legal: proof: b4 a5 e4 b5 d4 g5 f4 gxf4 Bc4 e5 Bd5 Ra6 Nc3 Rd6 a3 c6 Ba2 c5 d5 cxb4 Nce2 b3 Nd4 exd4 e5 Re6 dxe6 bxa2 Kd2 Ke7 c4 d5 Kc2 f5 Kb3 f3 g4 b4 c5 f4 c6 f2 g5 f1N c7 f3 a4 f2 h3 d3 g6 d2 g7 d4 Bb2 d3 Qe2 d1N Bd4 Nc3 Ba7 Nc6 Bb8 Nf6 g8Q Ng3 Nf3 f1B Kb2 Ba6 c8R Nd7 Nd4 Qb6 Qgg4 Nh5 Qf2 Nf4 Rg1 Ncd5 Nb5 Be2 Raf1 a1B+ Ka2 Nd8 Rc3 Nc7 Qf5 Ng6 Rg4 Qc6 Rh4 Bh6 Qg4 Ngf8 Qc4 Be3 Qg4 Ke8 e7 Bb2 Qe6 Bf4 Qg4 Kf7 e6+ Kf6 e8R Ke5 e7 Ke4 Qg8 Bc1 Qg4 Be3 Qg8 Nce6 Be5 Nc7 Qe6 Nc5 Qc8 Ncd7 Qe1 Bg1 Qf2 Nfe6 Rg8 Nef8 Rg6 Rg8 e8R Rh8 Rge6 Rg8 Qh2 Ke3 Rf3+ Kd2 Qf2 Bg5 Rf7 Be7 Rf5 Bd6 R8e7 Ng6 Rg7 Re8 Rg8 Ngf8 Rh8 Nf7 Qb7 Ra8 Qc8 Nd8
B1k3b1/rbP1pb2/pqQ1npp1/N1BR4/2q5/B1Bp4/P2nB3/2QK2r1 w - - 0 1 legal: proof: f4 f6 b4 c6 e4 Kf7 g4 Ke6 b5 cxb5 g5 Kd6 f5 Kc6 e5 Qc7 g6 Qd8 Nc3 Kc5 Nd5 Kc6 d4 fxe5 f6 e4 f7 Nh6 Nf6 gxf6 Rb1 Ng8 Ra1 Bh6 g7 Bg5 Rb1 Bf4 Rb3 Bc7 Rg3 Bd6 Rg6 Bc5 dxc5 hxg6 f8B Kc7 h4 d5 c4 a6 h5 e3 h6 d4 h7 b4 c6 b5 c5 e2 Rh2 b3 Be3 b2 Rh6 b1B Rh5 d3 Rh3 b4 Qc1 b3 Rh5 b2 Nf3 Bc2 Ne5 b1B Nc4 Nd7 Rd5 Bb7 Na5 Nh6 g8B Ng4 Bfh6 Kc8 c7 Nf8 Bd2 Ba4 Bhe3 Ne5 Bc3 Bbc2 Be6+ Bd7 Beh3 Bf5 Bhg2 Be6 Kd2 Ra7 Be4 Rg8 h8B Bf7 Bg7 Rh8 Bgh6 Ne6 Bhf4 Rh1 Beg2 Nc6 Bd6 Rg1 Bf2 Ne5 Be4 Kd7 Bf3 Bb3 c8Q+ Ke8 c6 Nc4+ Ke1 Nd2 Bfc5 Bc4 Qa8 Qc8 Ba3 Kd8 Bdc5+ Kc7 Be4 Qb8 Bh1 Kc8 c7 Bg8 Kf2 Bb3 Ke3 e1Q+ Be2 Qh4 Bhf3 Qa4 Kf2 Rg4 Ke1 Qc4 Bg2 Ba4 Be4 Be8 Kd1 Bef7 Re5 Bd5 Qc6 Qb6 Bg2 Bf3 Rd5 Be4 Bh1 Rg1+ Bf1 Nf8 Rf5 Rg3 Qe6+ Nd7 Be2 Bg2 Qd6 Nf8 Re5 Ne6 Rg5 Bf1 Ba8 Bg2 Rh5 Bc6 Rd5 Bb7 Qc6 Rg1+
Bn1R4/5qqb/r6P/2bpp3/1q1B1rkN/Bp1P3p/p3KQ1B/1b2BQ2 w - - 0 1 illegal: No proof kernel
1Q1n4/K3N2N/Qn2bq2/3P1bB1/1qnrn1k1/2Q2RqN/1Q1bP1b1/8 w - - 0 1 legal: proof: a4 a5 c4 d5 cxd5 g5 b4 e5 h4 gxh4 f4 exf4 b5 b6 d6 Qg5 g3 Qd8 Ra3 Ra6 bxa6 b5 axb5 a4 Rd3 a3 Bh3 Bxh3 b6 a2 Rd5 Bc8 Rg5 Nh6 Rg8 Nxg8 Kf2 Kd7 d4 Ke6 d5+ Kf5 a7 a1Q a8Q h5 b7 c5 d7 c4 Qe1 f3 Ke3 h3 Qd1 h4 Ba3 c3 Kd4 f2 Qc2+ Kg4 Nd2 f1B Qa7 f5 Ngf3 h2 Qd1 f4 Qb1 h3 Qh7 c2+ Kc4 c1Q+ Kb5 Qc5+ Ka4 Qaf6 Bc1 Bg2 Qa8 Ne7 Ng1 f3 Qb1 f2 Qb2 f1N Qa6 Nbc6 b8Q Ne3 Ne4 Qc7 d8Q Be6 Ng5 Rh4 Nh7 Nc4 Qdc8 Nd8 Bg5 Qcf4 Qcc7 Nc8 Qg7 Qce7 Kb5 N8b6 Qh8 Bh6 Qg7 Qg6 Qgc3 Qef6 Kc5 Be4 Kb5 B4f5 Kc5 Nf7 Kc6 Qd2 Kb7 Nd8+ Ka7 Qf4 Nf3 Qd2 Rf1 h1N Ng1 h2 Rf3 Nf2 Nh3 h1B Qcc2 Bg2 Qcc1 Kh5 Qcc3 Qg8 g4+ Kg6 Be3 Ne4 g5 Kh5 g6 Kg4 g7 Qe1 Bd2 Qg3 Bg5 Qgf8 g8N Qb4 Bc1 Bd2 Ne7 Be1 Bg5 Bd2 Nf4 Rh1 Nh3 Rd1 Bh4 Bf4 Bg5 Rd4 Qaa1 Bc1 Qa6 Bd2
3r1Q1q/6PN/5nB1/q2q1K1N/2kp1Q2/3pr1PR/n3Q1Nr/1qN3rn w - - 0 1 illegal: No possible last move, all moves rejected
8/1q1pr2p/3Q1pBb/1K4n1/1Q3Pkp/N1P1Brrp/R1p1Q3/3B2rQ w - - 0 1 illegal: No proof kernel
b7/1rB3Bq/2N2RBP/P1r5/1rQ1nb1k/1nq1Q1b1/1rn1KQ1n/3Qr3 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 g5 a3 a5 Bb2 axb4 Bc1 g4 a4 h6 Ra3 h5 Rf3 Qd7 Nc3 Qd8 Ne4 Bd7 Nf2 gxf3 g4 Bf5 g5 Bc8 Ng4 hxg4 h4 Ke7 e4 c5 d4 b5 e5 f5 a5 c4 e6 c3 h5 g3 h6 f2+ Ke2 c2 g6 Kf6 e7 Kg5 e8Q b3 g7 b2 d6 b1Q d5 b4 d7 b3 d6 b2 Qd4 g2 Rh2 Rh7 Qde3 Qf6 d8Q Nc6 d7 Bd6 Q8e5 Rb8 Q5d4 Rb4 Nh3+ Kh4 Qc7 g1R d8B Rg5 Kd2 Bb7 Bc4 f1N+ Ke2 Ba8 Qcb6 Nd2 Rg2 Nb3 Qdc3 f3+ Ke1 f2+ Kf1 f4 Qce1 Ncd4 Be6 Rc5 Bd2 c1B Bc3 Nc2 Ke2 Bb8 Qg1 f1N Nf2 Nh2 Ng4 Bd2 Bc7 f3+ Kd3 f2 Qd1 f1R Ne5 Qf3 Nc6 Nf6 g8Q Re1 Bf7 Ne4 Bg6 Rg7 Qc4 Qf6 Bd6 Rb7 Rf2 Qh8 Rf7 Qa1 Bd4 b1R Bg7 Rb2 Bc7 Qh7 Rf6 Bc1 Bd8 Bg3 Bc7 Rf5 Qbd4 Rc5 Qf2 Bf4 Qde3 Rh1 Qde2 Qe1 Qd1 Qc3+ Ke2 Re1+
1rrN2nn/3P1nQK/b3b3/3Q4/b4NPN/bqq3QN/8/kB2Rqrq w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 g5 Ra3 gxf4 c3 h4 Bb2 e5 c4 dxc4 Rg3 hxg3 axb5 f3 Bd4 Qd5 Be3 Qd8 Bf4 exf4 h4 Ke7 e4 Kd6 d4 f5 Kd2 c5 h5 a5 e5+ Kd5 b6 f2 h6 f3 Ke3 f4+ Kd2 g2 e6 c3+ Kd3 c4+ Kc2 a4 b7 a3 b5 a2 b6 a1Q h7 Ba3 e7 Nd7 e8N Ne5 b8Q Ng6 b7 Qb6 Ng7 Be6 Bd3 f1Q Rh6 f2 Rh4 f3 Qh2 Rc8 Nh3 g1R Qg3 Qb5 b8Q Qa4+ Qb3 Qb4 Qb2 Qb3+ Kc1 c2 Kd2 c1N Ke3 c3 Nh5 c2 Nd2 Rb8 Qc3 Rc8 Bf5 Nd3 N5f4+ Kd6 Ke4 c1Q d5 Nde5 Qb2 Kc5 d6 Kb4 d7 Nf7 Qg7 Qf6 Rh6 Kc3 Rh5 Kb2 Rh4 N8e7 Rh6 Rhe8 h8N Ka1 Rh4 Qfc3 Rh7 Nd8 Nf7 Nh8 Rh5 Rf8 Bh7 Ng8 Re5 Qa6 Bf5 f1B Bg6 f2 Nf3 Bg2 Qd5 f1B Bf5 Bc4 Bh7 Bgf1 Nh4 Bb5 Bg6 Ba4 Bf5 Nc6 Nd8 Qab7 Bh7 Ba6 Bf5 Qf1 Bg6 Bf7 Kf5 Be6+ Kg5 Qa8 Bb1 Rb8 Re1 Ne5 Qd6 Qh1 Qd5 Ne7 Kh6 Ng8+ Kh7 Nef7 Nb7 Rfc8 Nd8 Qf6 Nf5 Qd4 Nh4 Qdc3
NnQ1r2k/1K2Nb2/nb3PB1/4N2N/1qQ1b2n/qP3r2/3Qnbqq/6R1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 c5 axb5 cxd4 e4 fxe4 f5 h6 Bf4 Qc7 Ra3 Qb6 Rg3 gxf4 g5 Qc7 g6 Qd8 Rg5 hxg5 Ke2 e5 c4 d5 h4 a5 g7 Kf7 h5 f3+ Kd2 g4 c5 a4 b3 e3+ Kd3 e4+ Kc2 e2 c6 e1B h6 e3 Kd3 f2 c7 e2 b6 g3 f6 a3 b7 a2 h7 a1Q Qc1 g2 Na3 Qd6 Nc2 Qb4 Nf3 g1Q Na3 Be6 c8Q Qh2 Bh3 f1Q Q8c4 Bf2 Q1c3 e1N+ Kd2 d3 Nb5 d4 Bf5 Qaa3 Nh4 Na6 b8Q Ng2 Qa7+ Ne7 g8N Re8 Ng6 Nh4 Qb6 Nc6 Rg1 Bc5 N8e7 Qfg2 Qb7 Bb6 Nf4 Ncb8 Qbc8 Kf8 Nh5 Bf7 Be4 Rg8 h8N Rg3 Nc7 Rf3 Nf5 Kg8 Ng6 Kh7 Ne5 Kg8 Na8 Kh8 Kd1 d2 Ke2 d1N Ne7 d3+ Kd2 Qc5 Bg6 Qca5 Q3b4 Nc3 Qd6 Ne2+ Qdb4 Ng3 Kc3 Q5a4 Qd6 d2+ Qdd3 d1B Qe3 Bc7 Kd4 Ne2+ Ke4 Bb6 Qc1 Bg8 Qd2 Bh7 Kd5 Q4b4 Q4c7 Bc2 Qc4 Bg8+ Bf7 Nd7 Kc6 Ndb8+ Kb7 Bf5 Bg6 Bf7 Q8c5 Bc2 Qc8 Be4+
kBb1q3/2qPr2r/P1qQ3K/2n1RQn1/NB1bq3/2B3Q1/q1p1B3/4br2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 g5 a3 a5 Bb2 axb4 Bc1 g4 a4 h6 Ra3 h5 Rf3 Qd7 Nc3 Qd8 Ne4 Bd7 Nf2 gxf3 g4 Bf5 g5 Bc8 Ng4 hxg4 Kf2 Kd7 d4 b5 e4 c5 h4 Kc7 h5 Kb7 e5 f5 e6 c4 e7 c3 e8Q b3 d6 b4 d7 g3+ Ke1 g2 Kf2 b2 g6 b1Q a5 b3 d5 b2 g7 Na6 h6 Qc7 d8B Ra7 d6 Ka8 h7 Qe4 Be2 b1Q Rh3 c2 Rh5 Nf6 g8Q Qa2 Qe7 Nc5 a6 Bh6 Ke1 f2+ Kd2 f1R Qef7 f3+ Qg5 f4 Ba3 f2 Qg3 Bg5 Bb4 Bh4 Re5 f3 Qf8 Qec6 Ke3 Nfe4 Kf4 Ng5 Qf5 Re8 h8B Re7 Kg4 Rb7 Kh5 Qe4 Nh3 g1B Kh6 Qcc6 Nf4 Rh7+ Kg6 Rbe7 Ne6 Qe8+ Kf6 Nd3 Rd5 Re1 Qgg4 Qec4 d7 f1Q Bb6 Qg2 Ba7 f2 Bb8 Qc7 Nc5 f1Q Na4 Qff4 Bg7 Bhf2 Qg3 Nc5 Qd2 Qg4 Qdf4 Rd1 Qd6 Rf1 Bh8 Be1 Bg7 Qh8 Kg6 Qh4 Bb2 Bd4 Re5 Qgc6 B2c3 Qhe4 Bh5 Rhf7 Be2 Qe8 Kh6 Rh7+
bNQrR3/qprr1r1B/5R2/3QPqP1/K3n1n1/brQ1Rbk1/8/3qR3 w - - 0 1 illegal: Other
1N2r2N/Pb1K2bN/Q4pn1/RP2qQrb/1qr5/2n1B3/4n1rk/2QQ3q w - - 0 1 legal: proof: g4 h5 e4 b5 b4 a5 f4 a4 c4 g6 Bh3 d5 g5 Bf5 Bg4 Bc8 f5 gxf5 a3 hxg4 Ra2 Bd7 Rb2 Be6 exd5 bxc4 Rb3 axb3 a4 Bd7 Na3 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc3 c5 h4 f4 d4 b2 g6 b1N+ Kb2 c3+ Kb3 c2 Kc4 f6 Kb5 f3 h5 c4 a5 e4 g7 e3 a6 f2 h6 f1B h7 c3+ Qe2 g3 a7 g2 Qc4 e2 Be3 c1Q Nc2 e1Q Nf3 g1R Ng5 Rg2 Rh5 Ne7 g8Q Be2 Qg6 Bg7 Qf5 Rg8 h8N Qf8 Nh7 Nbc6 Kb6 Bg4 Qa6 Ng6 Kb5 Bb7 Kb6 Ke7 Kc7 Qb2 Rg5 Qh1 Rh5 Qa1 Rg5 Bh5 d6+ Ke8 d7+ Ke7 d5 Re8 Nd4 c2 b5 c1R Rg3 Qb2 Rh3 Qc3 Rh2 Rg5 Ra2 Qce1 Ra1 Rc4 Ra5 Nc3 Kb6 Nce5 Nc6+ Kd6 Nb8 Rg2 Bg1 Qe7 Be3 Nf3 d8Q+ Qd7 Ra2 Ng1 Ra5 Nge2 Qc8 Qe6 Qc6+ Ke7 Kc7 Qe5+ Kb6 Rg5 Qcc8 Qb1 Qc6 Qb4 d6+ Kd8 d7 Ke7 Qcf3 Kd6 Qf1 Rg2 Qc1 Rg5 Qfc2 Ke6 d8Q Rg2 Q2d1 Kf5 Q8d3+ Kg4 Qf5+ Kg3 Bc5 Qe3 Kc7 Qe5+ Kd7 Kh2 Bb6 Rec8 Be3 Rge8 Qcd2 Rcg4 Q1c1 Rg5 Qdd1 Rc4
1rr3NQ/4bn1n/b1K1RQ2/3r2R1/4Ppr1/1rP1kn2/nQ1R1R1b/qB6 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 g5 Ra6 f3 Bf4 f2+ Kd2 Bg7 Nc3 Bf8 Ra1 gxf4 Ne4 h6 g5 h5 Nf6+ Ke7 Ng4 hxg4 Qb1 Ke8 Qc1 Na6 Qd1 Nb8 Kd3 Ke7 Ke4 Kd6 b4 f5+ Kd3 Ke5 Kc4 Ke4 h4 a5 e3 d5+ Kb3 d3 Ka4 g3 h5 d2 h6 g2 g6 d4 h7 d3 b6 f3 Kb5 f4 b7 a4 g7 a3 Qe2 d1N Rh5 a2 Rc5 d2 Qc4+ Qd4 Rd5 Be7 Qc3 Nf6 g8R Nc6 b8R Nd8 Nh3 g1B Rb6 Bh2 Rgg5 Nf7 Kc6 Rb8 b5 Ba6 Rd7 Rhe8 h8Q Nh7 Bc4 Qg7 Qf6 Nc3 Rf1 d1R Rd2 a1R Ba2 Rg8 Bb1 Ra3 Rdd5 Na2 Rd2 Bc8 Ra6 Rb3 b6 Rd8 b7 Rd5 Qd6 Qa1 Qdf6 Rc1 Rb6 Ra8 b8Q Ba6 Re1 f1R Ree2 Rg1 Rf2 Rg4 c3+ Rc2 Rf1 f2 Qb7 Kf3 e4 Bd3 Ra6 Ke3 Qb4 Re8 Qa3 Bc4 Qb2 Rbb8 Rb6 Ba6 Rb5 Rd7 Qa3 Rg3 Rbe5 Rcb2 Re6 R2b3 Qb2 Rd3 Rg1 Rd5 Rg2 f1N Nf2 Bg1 Rh2 Red8 Rg2 Nh2 Ng4+ Kf3 Ne3 Rg4 Nf5 Rg8 Nh6 Ke3 Rgf2 Nf3 Bc2 Rge8 Bb1 Bh2 Ng8 Rec8+
2bR1q2/1r2Q1R1/K5qR/1n3PQ1/p1q2Bqb/2n2b1P/3NRQ1q/2k3rq w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 axb5 fxe4 d5 g4 d6 cxd6 Qd3 d5 Qd1 d4 f4 h5 Nd2 Bb7 Ndf3 Bc8 g3 Rh6 Bh3 gxf3 g4 Rh7 g5 Rh8 Bg4 hxg4 Kd2 Kf7 b4 Ke6 c4 Kf5 g6 e5 h3 a5 b6 d5 g7 f2 b5 f1Q c5 g3 c6 a4 c7 e3+ Kc2 Ke4 f5 e2 b7 e1Q b6 g2 Bd2 d3+ Kc3 d4+ Kc4 Qg3 Kb5 Nc6 b8Q Na7+ Ka5 Ne7 g8Q Rh7 b7 Nb5+ Kb6 Nd5+ Kc6 Be7 Qh5 Ndc3 Kb6 Bh4 Qe6 Qh2 Qg5 Qf8 Nf3 g1Q Qgh6 Qg6 Bc1 d2 Qh5 Kd3 Ra2 d1Q Bh6 e4 Qa7 e3 b8R e2 Nd2 e1Q Bf4 Qdg4 Qg5 Rg7 Rb7 Rb8 Rg1 Qc1 Rg2 Qfh1 Ka6 Qc2 Qeb6 Qb3 Re2 Qc4 Rb2 Rg8 Rb4 Kc2 Qbf6 d3 Qf2 Kc1 Qd6 Bd7 c8R Rg7 Ra7 Rb7 Rd8 Bc8 Qdf6 Qcf7 Rbe4 Qc4 Re6 Rg8 Qe7 Rg7 Nf3+ d2 Red6 Kb1 Rde6 d1B Nd2+ Kc1 Rc6 Bc2 Rf6 Be4 Rb6 Bf3 Rbe6 Qh7 Rh6 Qg6+ Qgf6 Q6h5 Bg5 Qgg2 Bf4 Rb8+ Qb7 Rg4 Qg5 Qg6+ Ka5 Rg3 Qe4 Rg4 Rg7 Rb7 Qee7 Qgg3 Bc7 Qgf4 Bd6 Rg1 Ka6 Qh5 Be5 Qfg4 Bf4 Qg6+
1q2B2n/2n5/1b2Q1Qr/krNNKb2/2r1rn1P/2RP4/3QpN1n/2N2rq1 w - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 g5 axb5 d5 f5 dxc4 b4 h6 g4 Qd3 Ra3 Qd4 Rf3 Qd5 Rf4 Qd8 Bb2 Bg7 Bf6 gxf4 g5 Bf8 g6 Rh7 Bh4 Rh8 Bg5 hxg5 Ke2 Kd7 h4 e5 g7 a5 b6 Kc6 b7 Kb6 f6 c5 d3 c3 f7 g4 b5 c4 Qa4 c2 Qa1 c1N+ Kd2 e3+ Kc3 g3 Nh3 f3 Be2 f2 Rg1 f1R Nf2 a4 Qa3 e4 Qa2 a3 Bh5 g2 Nh3 e2 Qd2 e1N Qc2 a2 Bg4 a1R Qf2+ e3 Qf6+ Ka5 b6 Ra4 Bh5 Nh6 g8Q Bc5 f8N Bf5 Qfg6 Nf7 Nf2 Na6 b8Q Nc7 b7 Nf3 Ne6 Nh2 Nf4 Bb6 Nd2 Rh6 Nd5 Nh8 Q8e6 Ra7 Rh1 g1Q Qbc8 Qg8 b8N Rb7 Na6 Rb8 Nc5 Ne2+ Kb2 Nf4 Kc3 e2 Kd4 c3+ Ke5 c2 Ndb3+ Kb5 Qf8 Rd4 Nc1 Ka5 Qff6 Rb7 Qgg5 Qb8 Be8 Ba7 Qff7 Rb5 Qfg6 Bb6 Na2 Nh3 Qf4 c1R Qd2+ Rc3 Nc1 Nf4 Qh7 Qg2 Rg1 Qh1 Rg7 Qg1 Qhg6 Rdb4 Rd7 Rcc4 Rd6 Rd4 Rc6 Rc4 Na4 Rd4 Rc3 Rbc4 Nc5 Re4+
8/r1QrB1r1/nRn2P1b/5rnn/1q6/kNPQB3/1bqpQ3/1b1B2BK w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 g4 Ba6 b4 Bb7 Nc3 Bc8 Nd5 h6 Nf4 gxf4 g5 h5 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kf2 e5 Kg2 Ke7 h4 Kd6 b6 a5 b7 e3 b5 Kc5 g6 Kb4 g7 d5 f6 d3 h5 d4 b6 d2 h6 f3+ Kh2 e4 h7 a4 Bh3 a3 Bb2 d3 Bd4 e2 Bg2 e1N Qa1 d1R Be5 f2 Bf1 e3 Bg3 a2 Bc7 e2 Qe5 a1B Nf3 Ne7 g8Q Bh6 Qe4+ Ka3 Qg7 Nec6 Nd2 Bf5 Nb3 Qc8 Bf4 Na6 b8B Bb2 b7 Ra7 Qc7 Nf3+ Kg2 e1Q Qe2 g3 Be3 Rg8 h8Q Ng5 Qhh7 Qb4 c3 Rg7 Qg6 d2 Rh4 Rd7 Kh1 Bb1 Qgd3 Qh8 Re4 Qh7 Re5 Qf5 Rb5 Rc1 Rb6 g2+ Kh2 g1N Kh1 Re1 Bg2 f1R Bf3 N1h3+ Bg1 Nf4 Bh5 Ra8 Ba7 Qh7 Bg4 Nh5 b8B Rf5 Qce5 Nc5 Bd6 Na6 Be7 Rg8 Qc7 Rg7 Qf2 Ree5 Bd1 Ra5 Qfe3 Rfb5 Qde2 Qc2 Q3d3 Rbd5 Rb7 Rf5 Bae3 Nc5 Rb8 Ra7 Rb6 Na6
2r5/QK5B/1b4pk/1rQ2qnq/R1r1q1Pr/b1B2Q1N/1bb1rP2/1BB5 w - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 h5 a4 a5 Ra3 axb4 Rb3 h4 e3 f5 Qd3 d5 Qd1 Na6 e4 Nc7 Rg3 d3 Nd2 hxg3 Ne2 d4 Ng1 Nd5 exd5 Nh6 Ne4 fxe4 Qe2 Ng8 Qd2 Nh6 Qd1 Ng8 Kd2 Kf7 h4 Kg6 c4 b5 d6 e5 d7 e3+ Ke1 e4 a5 d2+ Ke2 g2 a6 b3 h5+ Kh6 c5 b2 a7 b1R c6 b4 c7 g6 Rh2 b3 Ba3 b2 Qc2 d1R Qb3 Qf6 d8B Bf5 c8B Rdc1 Bd6 Rc4 Be6 Rac8 B6c7 Ba3 Nh3 g1Q a8Q Qh1 Be5 Qh4 Bf7 Nf6 Rg2 Nh7 Rg3 Ng5 Bg8 Qg2 Qd1 Rh7 Qa7 d3+ Ke1 d2+ Ke2 Re7 Bh7 Qh1 Qb3 d1R Bc3 Rd5 Rf3 Rb5 Rf4 Ra1 Qb4 b1Q Qbc5 Re8 Bb6 Rh8 Bba5 Ra2+ Bd2 Qg2 Bc3 Bb2 Bc1 Qf3+ Ke1 e2 Kd2 Qh1 Ke3 e1B Bd3 Qc2 Bf6 Ba5 Be5 Bb6 Bc3 Qb3 Bb1 Qc2 Rf3 Qg2 Kf4 e3+ Ke5 e2 Kd6 e1B Rf4 Bd2 Re4 Bf4+ Kd5 Bfc7 Kc6 Bd6+ Kb7 Qd3 Qe3 Bda3 Qf3 R4c5 Rb4 Rc4 Ra4 Qh1 Nf4 Qe1 Nh3 Qee4+ Ka6 Qe1 Qe3 Ba1 Nf4 Nh3 Bg8 Kg5 h6 Rc2 h7 B1b2 Qg3 Qh1 Qg2 Re2 Kb7 Qh6 Qe4 Qf8 Qf3 Qe3 Nh5 Bc2 Nf4 Qe4+ Bd5 Rg8 h8Q Qff5 Qd4 Rh8 Qc5 Rh5 Qa5 Kh6 Qa7 Qee5 Bg8 Ng5 Bh7 Qee4+ Qc6 Rh2 Qd5 Qg2 Qc6 Qh3 Qd5 Qh5 Qc6 Rh4 Nh3 Qee6 Qc5 Qee4+
Q1Qr3q/4NRnp/8/PP1b2k1/R2b1nr1/2rQ2q1/p2nR2b/QbB1K3 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 exf4 h5 a4 h6 gxh6 Rh2 h5 Rh1 h4 e3 b5 Bc4 Bb7 b4 Bc8 Bb3 Kd7 Nc3 axb3 a4 Ke7 a5 Ke8 Na4 bxa4 d4 Ke7 g4 Kf6 e4 c5 d6 h3 d7 c4 b5 a3 d5 c3 d6 a2 e5+ Kg5 e6 f5 e7 c2 e8R b2 Qf3 b1B Re4 h2 Qh3 Nf6 Qf1 Bg7 Re2 Bb7 Qf3 Nc6 Rf2 Ne8 Qh3 Ne5 Qf1 Rg8 Qh3 Ng6 Qa3 Bd5 Qb3 Bd4 Qd3 Ng7 Ne2 Qf8 Qd1 Rd8 Ng3 Qf6 Rhf1 h1R Re2 Rh3 Rf3 Qe5 Ra3 Qe3 Ra4 f3 Qd3 f4 Nf5 Qe8 Ne7 f2+ Kd2 f1N+ Ke1 Nd2 Qc3 Rc8 d8Q f3 d7 Nf4 Qdc7 Rg3 d8Q Ra8 Qdd7 Rd8 Qdc8 Qf8 Qd3 Qe8 Qcc3 Qf8 Ba3 c1B Qa8 Bb2 Qcc8 Bbc3 Bc1 Bb2 Qcc3 Bg1 Qcc8 Bbd4 Qcc3 Bh2 Qac8 Kh4 g5 Rh3 g6 Kg5 Qb2 Rg3 Qa8 Rg4 Qbc3 Rc8 Qb2 Rc3 Qc8 Qf6 Qa8 Rd8 Qc8 Ne8 g7 Qe5 g8Q+ Ng7 Qa8 Qf6 Qe6 Qf8 Qea6 Qh8 Q6c8 f2+ Kd1 f1Q+ Re1 Ne4 Bd2 Qg2 Re2 Qg3 Be3 Nc5 Kd2 Bc2 Rf1 Bb1 Qa1 Ne4+ Kd1 Qf2 Bd2 Qg3 Bc1 Nd2 Rff2 Nh3 Rf7 Qe3 Ke1 Nf4 Qcb8 Qf3 Qc8 Qg3+
2n3r1/pp4BB/kr2P2N/nr1b2B1/1Q1b4/1P1qB3/1nq2Q1q/r3QKR1 w - - 0 1 legal: proof: c4 g5 f4 gxf4 g4 h5 a4 e5 a5 d5 cxd5 Na6 b3 Nb4 g5 Na2 Na3 Bg7 Nc4 Bf8 Ne3 f3 Ng4 hxg4 a6 Nb4 Ra4 Na2 Rf4 exf4 Ba3 Nb4 Bb2 Nxa6 Ba3 Nb4 Bc1 Na2 h4 Kd7 e4 c5 d4 Kc7 h5 Kb6 d6 f5 d5 c4 d7 f2+ Ke2 f3+ Kd2 c3+ Ke3 c2 g6 g3 g7 f4+ Kd2 g2 e5 Bc5 d6 Nc3 h6 Bd4 h7 Ne7 g8Q Na4 Be2 f1N+ Ke1 Nd2 Rh4 Nb2 Rh1 Ndc4 Be3 c1Q Nh3 Ka6 Qg3 Qc2 Ng5 g1Q+ Bf1 Rg8 h8B Rg6 Nf7 Qgh2 Bd3 f2+ Kf1 Rf6 Bh7 Na5 Qd2 Rg6 Nh6 Rg5 Ke2 f1R+ Qf2 Ra1 Bg7 Rb8 Rb1 f3+ Kf1 Rg6 Qfe1 f2 Qb4 Qc5 Ke2 f1R+ Qf2 Rh1 Rg1 Rf6 Qe1 Qc2+ Kf1 Qe8 d8Q Be6 d7 Nc8 Be4 Qg6 Qf8 Bd5 d8B Rb6 e6 Ra8 Bdg5 Qf5 Bf3 Qfd3+ Be2 Rb8 Qb4 Qdc4 Ng8 Ne7 Qf3 Qe5 Bh8 Rh5 Bgf6 Be4 Qf2 Qh2 Bhg7 Rhb5 Bfg5 Bd5 Nh6 Rg8 Bd3 Q4c3 Be4 Nc8 Bh7 Q3d3+
1N3q2/1K1rBb2/rQ2b2r/RB1rB2b/7Q/bPnPnr2/p2k2p1/1B5Q w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 Ra3 h5 Rf3 Qf6 Nc3 Qd8 Nd5 Rh6 Ne3 gxf3 g4 Rh7 g5 Rh8 Ng4 hxg4 Kf2 Kd7 e4 Kd6 h4 Ke5 g6 Kd4 e5 f5 g7 c5 h5 a5 b6 c3 h6 a4 b7 c4 h7 g3+ Ke1 c2 e6 a3 b3 a2 e7 c3 e8B f2+ Ke2 g2 Kf3 Ne7 g8Q Ra6 Qg6 Nd5 Bf7 Nd7 b8B N7f6 Rh5 Ng4 Bc4 f1R+ Ke2 Ba3 Rh3 Nge3 Qg3 Qf8 Be8 Rf3 Qf2 Be6 Rh5 Bf7 Bb2 c1R Bcb5 Ke4 Qdf1 c2 Bf6 Rd1 Bbe5 c1R Be7 Rc5 Qh4 Rc7 Qff2 Rd7 Rg5 Rc1 Qh1 Rc5 Rh5 Be6 Bg6 Bf7 Qfh4 Be6 Qf6 Bf7 Qb6 Nc3+ Ke1 Be6 Ne2 Rcd5 Nd4 Bf7 Nc6 Be6 Ba4 Kd3 Nb8 Rh3 Kf2 f3 Bf7 f4 Bb5+ Kc2 Rg5 Rh6 Qh4 Rg8 Rh5 Rg3 h8Q Kd1 Bg6 Bf7 Kg1 f2+ Kh2 f1B Bb1 f3 d3 Be2 Kg1 Kd2 Kf2 Rgg6 Rf5 Rf6 Kg3 f2 Kf4 f1B Qh1 Rh3 Qh4 Rh6 Rh5 Bg4 Rg5 Na4 Ke4 Bge6 Rg4 R5d6 Rf4 Be2 Rg4 Nd5 Kd4 Nac3 Kc4 Bb2 Kc5 Ne3 Ra4 Beh5 Ra5 Rd5+ Kc6 Rf3 B7f6 R7d6+ Kb7 Ba3 Be7 Rd7+
kn6/q3QPK1/3R1q2/1nRN1qR1/np4QP/n3b1r1/R1r1p3/QB1q3b w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Bd7 Bb2 Bc8 Na3 Kd7 Be5 Ke8 Bf4 h6 Nc2 gxf4 g5 h5 Ne3 Nc6 Ng4 hxg4 Qc1 Nb8 Qc2 Kf7 Qd1 Ke8 Kf2 Kd7 h4 b5 d4 c5 a4 Kc7 d6+ Kb7 a5 e5 g6 g3+ Ke2 e3 Kd3 e4+ Ke2 g2 f6 b3 f7 c4 d7 f3+ Ke1 b2 d5 b1N g7 b4 d6 c3 Ra3 e2 Kf2 e3+ Kg3 e1Q+ Kg4 f2 Kf5 c2 Kg6 c1N Rd3 Ne2 Rc3 Nf6 g8Q Bh6 Rb3 Ne8 Rc3 Na3 Nh3 Nc7 Rc5 Ncb5 Qa1 Nec3 Rg1 Na4 Bd3 f1Q Bb1 e2 Qgg7 Qd1 Nf4 Rg8 Nd5 Qb6 d8R Be3 a6+ Ka7 Kh7 Bb7 d7 Qe6 Qg4 Rg6 Kh8 Qff5 Kh7 Nc6 Kh8 Rc8 Kh7 Ka8 a7 Nb8 Kh8 Rh6+ Kg7 Rc7 Rg8 Rc6 d8Q Rc8 Re1 g1Q Qe7 Qgf2 Rg1 Rc7 Rd8 Rg6+ Kh8 Rg5 Rd6 Rg7 Qgd4 Rg2 Qg4 Rg3 Kg7 Bc6 Nf4 Bh1 Nd5 Kb7 Rg2 Qfg1 a8R Qgf2 Raa6 Qfg1 Rac6 Ka8 Rc2 Rc8 Ra2 Qgf2 Rc1 Rc2 Rg1 Bg5 Rg2 Qa7 Rg1 Be3 Rg2 Rb2 Rc5 Rc2 Qgg5 Rf3 Qh5 Rh3 Rg5 Rg3 Qg4 Qef6+
BKrR2Q1/Qn3p2/1Q6/n2q3N/4pqRP/2q2q1r/2kPRRrr/3b2b1 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 hxg4 e4 e5 Nc3 exf4 e5 d5 Ne4 dxe4 Ba3 Rh5 axb5 Qg5 b6 Rh8 b5 Qd8 Bb4 cxb4 Ke2 Kd7 c4 Ke6 b7 a5 b6 g5 h3 g3 c5 Kd5 c6 Kc4 c7 g4 e6 g2 e7 a4 e8R a3 Qe1 Kb3 Rd1 f3+ Ke3 a2 Kf4 a1Q Qh4 g3 Be2 f2 Qf6 f1Q+ Nf3 g1Q Qe5 g2 Qc5 Bg4 c8Q Nd7 b8Q Ra7 b7 Qgf2 Rh2 g1R Re1 Ne7 Bc4+ Kc2 Q5c7 b3 Bd5+ Nc5 h4 b2 Ke5 Rh1 Ng5 Rg8 Q8d7 b1R+ Kd6 Rb3 Nh7 Rh3 Nf6 Qc3 Nh5 Bd1 Re2 Rg4 Rg2 R1h2 Qb6 Bg7 Rg8 Bd4 Qa8 Nc6 b8R Na5 Bb7 Qg5 Kc7 Qd5 Qe7 Rgg3 Rg4 Qf4+ Kc8 Q1f3 Qed8 Qa2 Qg8 Bg1 Rgf2 Rgg2 Bd5 Re7 Qaa7 Qab3 Ba8 Qd5 Rb7 Rd7 Rc7 Ncb7 Kb8 Nd6 Rc6 Ndb7+ Rd6 Rc7 Rd8 Rc8#
5B1R/bq6/rk4N1/1p2nb1Q/2q1nBqK/BPQP4/1Qp2bB1/3nqn2 w - - 0 1 illegal: No possible last move
1n2N3/rrBr4/2b4p/1PpPK2Q/Npkb2R1/qn3pN1/2r1b1QN/1Q6 w - - 0 1 legal: proof: a4 a5 f4 b5 c4 g5 b4 d6 h4 gxh4 c5 dxc5 e3 Bh3 Ra2 Bc8 Rb2 e6 Bc4 bxc4 b5 e5 Rb4 axb4 fxe5 Qf6 Na3 Qe7 Nb1 Qd8 Kf2 Kd7 Kf3 Ke6 Kf4 Kd5 g4 f5 d4 c6 g5 c3 e4+ Kc4 e6 c2 g6 h6 e7 h3 e8N h2 e5 Ra7 a5 Rhh7 a6 Rhd7 g7 Qa5 e6 Ne7 g8Q Qa3 Nf3 Bg7 Rg1 h1B Nc3 Bb7 d5 Bd4 Bd2 c1R Ne2 Rc2 Nh2 Bf3 Ng3 Be2 Qb1 Ba8 Be3 Rab7 a7 Ra2 Nh5 Ra1 Qg2 Ra2 Kg3 f4+ Kh4 f3 Kg3 Kc3 Kf4 c4 Qf5 c5 Qgh3 Qb2 Nef6 Rbc7 Qb1 Nec6 e7 Bb7 e8Q Ba8 Rg4 Na5 Qg2 Bc6 a8N Nb3 Ng3 Raa7 Qh5 Rcb7 Nb6 Qa1 Ne8 Qa3 Qbf1 Kd3 Na4 c3 Qb1+ c2 Kf5 Kc4 Bf4 c1R Bc7 Rc2 Kf4 Bf2 Ke5+ Bd4+
q5Q1/nrkn2q1/Pp3pp1/2B2b1b/2Q1Q1B1/nRKpN2B/1Q1b2P1/5q2 w - - 0 1 legal: proof: d4 a5 b4 axb4 h4 f5 d5 Ra6 h5 Rg6 Rh3 c6 Rh1 cxd5 h6 d4 Bg5 Rf6 Bc1 g6 Bd2 Rf7 Bc1 Rg7 hxg7 Qc7 Ba3 Qb6 Bc1 Qd8 a4 Nc6 e4 Qc7 f4 Kd8 e5 Qb8 Nd2 Ke8 Ne4 fxe4 f5 Qc7 f6 Nb8 f7+ Kd8 Ra3 Qa5 Rf3 Qb6 Rf6 exf6 Rh4 Ke7 Rh1 Qd8 Kd2 h5 c4 d5 e6 Kd6 c5+ Kc7 a5 d3 e7 h4 e8Q b6 c6 h3 a6 b3 Qe1 d4 Qe3 b2 Nf3 b1N+ Ke1 h2 Rg1 h1Q Nd2 Bf5 Ba3 Ne7 g8Q Nc8 Nc4 d2+ Ke2 Qh7 Qd3 e3 Bc5 Qg7 Qee4 d1B+ Ke1 e2 Ne3 Rh5 Qc4 Na3 Kd2 d3 Kc3 Na7 Rh1 Be7 f8Q Rh7 Qe8 Bd6 Q8e5 Nd7 Q5d4 Bf4 Rh4 Kc8 c7 Bg5 Rf4 Qe8 Rf2 e1Q+ Rd2 Bh5 Be2 Qf1 Rb2 Qef8 Rb3 Bh6 Nc2 Bc1 Ne3 Qf7 Bf3 Qd5 Bg4 Qa8 Qgf7 Qg7 Qg8+ Nf8 Qde5 Kd7 c8B+ Kd8 Q5d4+ Kc7 Kb4 Nd7 Qb2 Ne5 Be6 Nd7 Kc3 Rh8 Qh7 Rb8 Qg8 Rb7 Bh3 Bfg4 Qf5 Bf3 Qfd5 Be4 Beg4 Bf5 Qde4 Bd2+
1R1n1R1q/RQ1pNPb1/1rp5/1k1P2p1/n2np1r1/nBr3R1/1QQn4/K7 w - - 0 1 legal: proof: c4 a5 g4 f5 e4 fxe4 b4 b5 f4 h6 f5 g5 Bb2 Ba6 Be5 axb4 Bg3 b3 Bf4 b4 Na3 Bb5 cxb5 Nf6 Nc4 Ng8 Ne5 Nf6 Nef3 gxf4 g5 Ng8 g6 Ra4 Ng5 hxg5 Bg2 Ra5 Bf1 Ra8 a4 e5 d4 e3 h4 b2 g7 b1R h5 c6 h6 f3 d5 e2 Kd2 e1N h7 f2 f6 e4 a5 b3 Kc3 b2 b6 Nf3 a6 Ra7 b7 Nh6 g8R Nd4 Bc4 f1N Qc2 Nf7 Nh3 Nd2 Nf4 Rc1 Ra3 b1N+ Kb2 Rg1 Ra4 Na3 Rh3 Rg4 Bb3 Qc8 Rc3 Kd8 Ng6 Kc7 Ne7 Kb6 Ka1 Bg7 Rf8 Kb5 Rg3 Nd8 f7 Ra8 a7 Na6 Rc3 Rb8 a8Q Nc5 Ra7 Na4 Rg3 Qc7 Ng6 Qe5 Ne7 Rg8 h8Q Qf6 Qh7 Rh8 Qh2 Rh3 Qg2 Qh6 Qf2 Qh8 Qh2 Rc8 Qg2 Rc7 b8R+ Rb7 Qb2 Rb6 Qb7 Nf1 Qgc2 Nd2 Rg2 Rd3 Rg3 Rc3
2nN1B2/2nr3p/1RN2Q1r/bN5n/1n1n2kp/1rQQp2b/2p1P1P1/3K1Q2 w - - 0 1 illegal: No possible last move
r1b1n1nQ/4k3/Qb3RP1/R5pp/1P2r1n1/2pppKQR/Nq3Q2/5B1b w - - 0 1 illegal: No possible last move, all moves rejected
2Q1r3/B5pk/1KnR2Np/2n1b1p1/6p1/pp1P3P/1Q1qr1B1/3QQnBb w - - 0 1 illegal: No proof kernel
2b1r3/1pnQ1n2/QQp1Q1P1/KpbpNq2/2RP2pR/p4r1R/8/1k4nB w - - 0 1 illegal: No proof kernel
Rnq3QN/1p3pnb/1Nk2P1Q/2qpr3/1q5Q/n1b1Q3/K2P2r1/Nn1r2B1 w - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 a5 f4 axb4 f5 e6 e3 c6 f6 c5 Bd3 c4 Bf5 exf5 Ra3 Ne7 Rc3 Ng8 Rb3 cxb3 c4 h5 g4 d5 a5 Kd7 e4 b2 a6 b3 a7 h3 g5 h4 e5 h2 c5 f4 c6+ Kc7 g6 h3 g7 f3 e6 Bc5 e7 Qd7 e8Q Bb4 Ne2 Ne7 g8Q Bc3 Na3 b1N Bb2 Nf5 Qe3 Rh5 Nf4 Ng7 Ng6 Re5 Nc2 Na3 Nh8 f2+ Ke2 f1R Kd3 Qe8 Qg4 Rd1 Na1 Bf5+ Qge4 Kd6 c7 Bh7 c8N+ Kc6 Nb6 Qc8 Rf1 h1Q Qh6 Rf5 Qee3 h2 Rf4 Qf3 Ra4 h1Q Ra6 Qg4 Ra5 Bb4 Bd4 b2 Bc5 b1N Ra6 Nc4 Kc2 Qhg1 Kb3 Re5 Ka2 Bc3 Qh4 Nca3 Qeh6 Qf1 Bg1 Qf2 Ra5 Qc5 Ra4 Nd7 Qe8 Rb8 a8Q Qf4 Qg8 Qfb4 Qa6 Ra8 Qe2 Nb8 Qee3 Qbb5 Rg4 Ra4 Rg2 Rg4 Rg3 Rgg5 Rg4 Rg6 Ra4 Qbb4 Ra8 Rg2
1b1Q4/1k3b1p/Nr1p1R1K/2QPBp1P/q1N2Nn1/4N3/1pQr4/rnb1bb2 w - - 0 1 legal: proof: e4 a5 a4 f5 b4 fxe4 f4 axb4 f5 b3 f6 g6 Bb5 c6 Nf3 cxb5 Rf1 b4 Ng1 Ra6 Rf5 gxf5 Bb2 Ra7 Nf3 Ra5 Kf2 Kf7 Qh1 Nc6 Nc3 Ke8 Rc1 Ne5 Nb1 Nh6 Rd1 Ng6 Bc1 Ng8 Qe1 Ra6 Qe2 Ra7 Rh1 Ne5 Ng1 Nc6 Ke1 Ra8 Qd1 Nb8 Ke2 b5 Ke3 e5 h4 b2 d4 b3 c4 b4 g4 Nc6 h5 Nh6 g5 Ba6 c5 Bd6 a5 Na7 g6 Bf1 c6 Nb5 a6 Bb8 g7 Qa5 g8N Kd8 f7 Kc8 a7 Qa4 c7 Na3 f8Q+ Kb7 Nd2 b1R Nc4 b2 Ne2 b3 Rg1 d6 Qe8 Ra1 Ne7 b1B Rg6 Ba2 Rf6 Nb1 Nf4 b2 Qd3 Rg8 Qd8 Rg2 Ned5 Rh2 Qc2 Rd2 Nc3 Bb3 Nd1 Ba2 Na3 Be6 d5 Bf7 Nc4 Be2 Kf2 e3+ Kg3 e4 Kh4 Bf1 Kg5 e2 Nde3 e1B Qg8 Rh2 Qd8 Ng4 Bd2 Re2 Bc3 Bd2 Bd4 Bc1 Be5 Nf2 Kh6 Rd2 Bd4 Ra3 Bc3 Rb3 Be5 Ng4+ Kg5 Ka6 c8Q+ Rb7 Qc5 Rb6 Qd1 Kb7 Qc2 Nh2 Nd1 e3 Kh6 e2 Nde3 e1B Qe4 Bc7 Qc2 Rc8 a8N Bb8 Nc7 Ng4+ Kg7 Ba7 Na6 Ra8 Rg6 Bb8 Rf6 Qc6 Nc7 Ra1 Na6 Nf2 Kh6 Qd7 Nb4 Qa4 Na6 Ng4+
8/1r1b1B1p/b2nB3/3Qp1BR/kr1rn2K/n1bQPQpP/2N2p1b/1q5Q w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 f5 b4 a5 g5 axb4 Ra2 Qd5 Rb2 Qd8 f4 g6 Rb3 Na6 Rg3 Nb8 Rg4 Nh6 Na3 Ng8 Nb5 Na6 Nd4 fxg4 f5 Nb8 f6 Bd7 Nf5 gxf5 Qb3 Be6 Qd1 Bc8 Kf2 Kd7 Kg3 Kc6 d4 b5 g6 e5 a5 f4+ Kh4 b3 a6 b4 h3 Kb5 d5 c5 g7 b2 d6 b1B a7 b3 d7 c3 Qd6 b2 Qd5 c2 Qe4 c4 Bd2 c1R Qd5+ Ka4 Qd3 f3 Be3 c3 Qg6 c2 Bb6 f2 Qf5 Ba6 Nf3 Nh6 g8Q Nf7 Bd4 Nd6 Be3 Qb6 d8Q Rd1 f7 c1B Rg1 Nd7 Qe4+ Rd4 Ne1 Rb8 a8B Nc5 Bd5 Rb7 Qh1 Bf5 Bg5 b1N Be6 Nce4 Nc2 Bf4 e3 Na3 Bfc4 Bh2 Rg2 Be7 f8Q Qb1 Bf7 Bd7 Bce6 Rbb4 Qg6 Rg8 Qa8 Bd8 Qd5 Rg7 Rg3 Be7 Rf3 Bd8 Rf5 Ba5 Qfa8 Nd2 Qdf3 N2e4 Qd5 g3 Bf4 Rb2 Rh5 Bc3 Bg5 Rbb4 Qf4 Nf6 Qd3 Nfe4 Qff3 Bdc8 Bg8 Rgb7 Bgf7 Bd7
5QKq/1bb3B1/p3Q1Q1/qp2rb1q/PP1pp1n1/1Bb5/RQNB1n2/3kr3 w - - 0 1 legal: proof: f4 f5 g4 g5 a4 c5 d4 cxd4 e4 fxe4 b4 Bh6 f5 Bg7 Nc3 Bf8 Nd5 h6 Nf4 gxf4 g5 h5 Ra3 Qc7 Rg3 Qd8 Rg4 hxg4 Ke2 Kf7 c4 b5 h4 e5 f6 Kg6 c5 Kf5 g6 d5 f7 f3+ Kd2 Kf4 c6 f2 h5 d3 Kc3+ e3 h6 d2 g7 d4+ Kd3 e4+ Ke2 g3 c7 a6 h7 g2 Qb3 Nh6 g8Q Ng4 Qc2 Bb7 c8Q Bd6 f8B Nd7 Qca2 Nc5 Qab3 Nd3 Qb2 Qa5 Rh6 Bc7 Qce6 Re8 Nf3 g1Q Rh2 Qh1 Qgg6 Re7 Rg2 Qh6 Bg7 Rf8 h8Q Ree8 Qd7 Re5 Ne1 Rff5 Qg8 Rh5 Nc2 Rh1 Rh2 Kg3 Bh3 Kf4 Qde6 f1B+ Kd1 Bg2+ Ke2 Ndf2 Qb8 Nf6 Bg4 Bh3 Qf8 Rg1 Bh5 Bf5 Rg2 N6g4 Rh2 Rg3 Kf1 Rh3 Kg2 d1Q Bd2 Rh4 Rh1 Qe2 Ra1 Rh1 Ra3 Re1 Ra2 Nd1+ Kh3 Kf3 Kh4 Nf2 Qc1 Qd1 Qa3 Ke2 Qb2 Qh7 Kg5 Qc1 Qh6 Kd1 Bf7 e2 Qh5 Rh1 Qhg6 e1B Qc6 Qh8 Bb3 Rf1 Qce6 Qh2 Be3 Bc3 Bf4 Re1 Bd2 Nh6 Kf6 Nhg4+ Kf7 Qh5 Bf4 Qe3 Kg8 Qeh3 Bd2 Qh6 Qb8 Q3h5 Qf8 Qh8+
3NnNr1/2rrq1q1/p1b3PN/1rk1b1N1/q6r/2N2Pq1/2K2R2/3N1QB1 w - - 0 1 legal: proof: d4 b5 e4 c5 b4 cxd4 a4 f5 axb5 fxe4 b6 a6 b7 Nc6 b5 Na7 b6 Kf7 Ra5 Ke8 Ra4 Nc6 Ra1 Na7 bxa7 g5 f3 g4 Ra3 g3 Rd3 Nf6 Rd2 Ng8 Rf2 gxf2+ Kd2 h5 g4 Qc7 g5 Qb6 Bh3 Qd8 Bg4 hxg4 b8N f1R h4 e5 c4 Ke7 h5 Kd6 h6 e3+ Kd3 e2 h7 e1R Bb2 e4+ Kd2 g3 Nc6 g2 Kc1 d3 Nb4 e3 Nd5 e2 Bg7 d2+ Kc2 Kc5 Rh2 Nf6 Nbc3 Bd6 Ne3 Qe7 Nh3 g1Q Rf2 Ne8 g6 Bb7 Be5 Qg7 Ng5 Bc6 Bh2 Qg3 Bg1 Be5 Qa1 d5 Ned1 Rd8 a8N d4 Nb6 Rd7 Qb1 Rg8 h8N Rc7 Nhf7 d3+ Kb3 Qh6 Nd8 Qg7 Nd7+ Kd4 Ne3 d1R Nf8 d2 Kc2 Kc5 Qa1 Rb1 Ned1 Rb5 Qb1 Kd4 c5 Kc4 Bh2 Rh1 Bg1 Rh4 Qa1 Rf1 Qc1 e1Q Qa1 Bb7 c6 Kc5 Qc1 Rd7 c7 Bc6 c8N Qe2 Nd6 Rc7 Nb2 Rd1 N6f7 Qe3 Nh3 Qeg5 Nh6 Q5e7 Ng5 Re1 Ncd1 Rf1 Nc3 d1Q+ Kb1 Qd4 Kc2 Rd1 Qa1 Rd3 Qf1 Qc4 Nd1 Rdd7 Nh3 Qcg4 Ng5 Qa4+
r1rNNN2/N1p5/1P4K1/3q2rR/2b1B1kq/1nn4R/1P1N1R2/3nrnq1 w - - 0 1 legal: proof: c4 a5 f4 b5 a4 e5 axb5 exf4 c5 a4 c6 a3 Qc2 a2 Na3 dxc6 Qf5 c5 Qb1 c4 d3 axb1Q g3 f5 Bh3 f3 Bg4 f4 Bf5 h6 Bh3 f2+ Kd2 f3 Bf1 Bc5 Kc3 Bf8 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 Ke3 Kf7 Ke4 Ke6 h4 g4 e3 g5 h5 g3 b6 g2 h6 g4 h7 c3 Rh3 g3 Nb5 c2 d4 c1R+ Bd3 f1N Na7 f2 Nf3 g1Q Nd2 g2 d5+ Kf6 f5 Kg5 f6 Na6 f7 Nc5+ Ke5 Nb3 f8N Re1 e4 Kg4 d6 Nf6 d7 Qd1 Ra3 Rg8 h8R Ba6 R8h5 Nd5 Ra5 Qh4 d8N Qf3 Rc5 Rc8 Rc2 Bc4 Ke6 Ra8 e5 Nfe3 Be4 Qd1 Kf7 f1N e6 Nc3 Bc6 Rh8 Be4 Qf3+ Kg6 Ned1 e7 Qd3 Nh7 Re8 Nf8 Qd5 Ndc6 Rec8 e8N Qgc5 Nd8 g1R Nf3 Qe3 Rch2 Rg3 Nd2 Qg1 Rf2 Rf3 Nh7 Rf5 Nf8 Rg5+
5rbq/rn2PR2/n1R1n3/bb1KNN2/Nk6/Nnr3P1/1R1b1N2/2n1b2Q w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 g3 h5 Qd3 h4 Kd2 f3 Bg2 h3 Kd1 hxg2 Bf4 gxf4 Kc1 f2 Qd1 Qc7 Kd2 Qd8 Kd3 Ke7 Kc4 Kd6 b4 f1N e4 a5 h4 f5 c3 f3 h5 f4 b6 a4 b5 a3 h6 f2 b7 f3 h7 d3 b6 a2 Rh4 d2 Rh3 Nf6 Rh6 Na6 b8N Nh2 b7 f1B+ Qe2 d1R Nd2 f2 Kd4 Nf3+ Kc4 Ra7 Rh2 Nd4 Rc1 a1B Rh6 Ne6 Ndf3 Ne8 Ne1 Rd3 Rf6 Bh6 Nh3 g1B Qh5 Rf8 h8N Bd2 Nc6 Be2 b8R f1N Qh4 Bf2 Nc2 Bfe1 N6d4 Bb7 Ng6 Bd5+ Kb5 Bb2 c4 Bbc3 Rf7 Ba5 Na3 Rc3 Ne5 Qf6 Qh5 Qh8 Nf2 Bd3 Qh1 Be2 Ka4 Kc5 Rb2 Nd6 Nf5 Nb7 Rcc2 Be3 Rc1 Nd2 Rcc2 Nb3 Rc1 B3d2 Rcc2 Kb6 c5+ Kc7 c6 Kb6 c7 Kc5 c8N d6 Nb1 Bb5+ Ka3 Bdc4 Nb6 d5 Ka2 d4 Na3 Kb4 Na4 Rd3 Rc3 Bd5 Rc6 Rc3 Neg4 d3 e5 Nec7 e6 Bdc4 e7 Bd5 Rg7 Bg8 Rf7 Ne6 Qg1 Bg5 Ne5 d2 Qh1 d1N Qf1 Bgd2 Qh1 Rc4 Kb1 Nc3+ Kc2 Ne2+ Kd3 Rc1+ Ke4 Rc3 Kd5 Nc1
b1b1n1q1/1q2r1n1/Bqq5/Q2r2N1/1r1P4/R3q1N1/1Pq3kN/bKN2NN1 w - - 0 1 illegal: No proof kernel
4r1kB/n5B1/P6q/qbrpb1N1/P2B1rB1/Nq5n/n4B1N/nK1Q3b w - - 0 1 legal: proof: b4 f5 e4 fxe4 g4 h5 d4 hxg4 a4 a5 bxa5 c6 d5 Rh4 d6 Rh3 Ra2 Rh8 h4 Kf7 c4 Qe8 c5 Qd8 Rd2 Ke8 Rd5 Qc7 Rh3 Qb6 Rc3 cxd5 c6 Qd8 c7 Ra6 Rc2 Ra8 Rc6 dxc6 Kd2 Kf7 Kc2 g5 f4 e5 d7 b5 a6 c5 h5 g3 f5 e3 h6 e4 f6 g4 h7 e2 Bg2 e1N+ Kb2 b4 Bd2 c4 Nf3 b3 Ba5 e3 Qe2 c3+ Kc1 b2+ Kd1 Nc2 Ne1 Ne7 Qc4 Na1 Qc6 c2+ Ke2 c1Q Kd3 e2 Bb6 Qh6 Qb7 Nbc6 Nd2 b1B+ Kc3 Bg7 Kb2 Nb4 Ne4 Na2 Nd3 e1Q Bc5 Re8 h8B Nc6 Ne5+ Kg8 Qb3 Qee3 Bd4 Na7 Bh3 g2 Ng5 g1R Nef3 g3 Bg4 g2 Qd1 Be4 Nh2 Qg3 Bf2 Rf1 Bd4 Bf3 Kb1 g1N Bf2 Bb7 c8N Nh3 Nd6 Bc6 Nb5 Qa5 d8B Bh1 Na3 Rc8 Bdb6 Bb5 Bbd4 Rc5 f7+ Kf8 Be1 Rf4 Bef2 Be5 Ne4 Ke7 f8B+ Kf7 Ng5+ Kg8 Bfg7 Qb3+
r2N2r1/2k1p3/b7/1q1R2Q1/1N2bPnq/1n1Br1P1/2qr1NNn/3NN1bK w - - 0 1 legal: proof: a4 f5 e4 fxe4 d4 g5 d5 b5 axb5 c6 Qf3 cxd5 Qd1 d4 f3 g4 Be3 g3 Bf2 gxf2+ Ke2 Ba6 Kd2 Bc8 Ra6 h5 Ra2 h4 Ra1 h3 g3 Rh6 Ra4 Rh4 Ra1 Rh8 b4 Rh4 Ne2 Nf6 Rg1 Rh7 Rg2 hxg2 Ng1 Ng8 Nh3 Rh5 Qe1 Rf5 Bd3 Ba6 Nc3 Qc8 Rd1 Bg7 Nb1 Qd8 Qe2 Bc8 Rh1 Rc5 Ng1 Bf8 Qd1 Rh5 Bf1 Rh8 Ke2 d5 c4 Kd7 h4 a5 b6 a4 b7 e3 h5 a3 f4 d3+ Kf3 e2 b5 e1R h6 a2 c5 a1N h7 d2 b6 d4 Rh5 d3 Nc3 Qe8 c6+ Kd6 c7 Nc6 b8N Bg7 b7 Bf5 c8N+ Kc7 Qb1 d1R Qb5 d2 Bd3 f1B Nd6 Nf6 Nde4 Rg8 h8N Ng4 Nf2 Bd4 Ng6 Nb3 Nh4 Bh7 Qg5 Re6 Nge2 g1Q Nc1 Qh2 Ng2 Qh4 Na6+ Kd7 Nh3 Bg1 Nb4 Kc7 b8N Re4 Nf2 Ree1 Bf5 Ba6 Ncd3 Re6 Nde1 Nce5+ Ke4 Qb5 N8c6 Bg6 Nd8 Nh2 Ke3 Bh7 Bd3 Be4 Ke2 Rb1 Ncd1 Rb2 Qf6 Neg4 Rd5 Nf3 Kf1 Rc2 Nde3 d1Q Qg5 Qb1 Ned1 Rd2 Nge3 Qc2 Kg2 Ngh2 Kh1 Ne5+ N3g2 Neg4 Nf7 Bg6 Nd8 Re3 Qh5 Bh7 Qg5 Be4
n1b5/B1nNrPq1/RbB2BP1/b1R2r1B/5R2/4k2n/qrb1p1Kr/4B3 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 f5 Ba6 Nc3 Bc8 Nd5 h5 Nf4 gxf4 g5 Qb6 Qf3 Qd8 Qg4 hxg4 Kf2 Kf7 c4 a5 h4 d5 b4 e5 b6 d3 f6 Ke6 b5 Kf5 c5 f3 c6 a4 g6 d4 f7 e3+ Kg3 Ke4 c7 e2 b7 e1B+ Kh2 d2 h5 d1B b6 f2 h6 g3+ Kg2 a3 h7 d3 Bb2 d2 Ba6 f1R Rh3 a2 Rh5 Ke3 Rg5 e4 Bg7 Nf6 Bb5 Nfd7 Rd5 Rf5 Nh3 Ra7 Rd6 Qf6 Bc6 Na6 b8R Bc2 b7 d1R Rb1 a1Q Rb5 Qa2 Ng1 Ba5 Nf3 Nb6 Ne5 Na8 Nd7 Rb1 Rc5 Rb2 Re6 Qc3 Bf6 Bd6 Bh4 Qg7 Bf6 Be7 Bc3 Bf6 Be1 Bb6 Rd6 Bc3 Rd4 Bca5 Ra4 Re8 h8B Ree5 Rd4 Rh5 Rb4 Ref5 Ra4 Rh1 Rb4 Qg8 Bf6 Qg7 Ra4 Kd3 Rac4 e3 Rf4 e2 Nf8 Be6 c8B Ke3 B8d7 N6c7 Rd8 Rg5 b8B Rf5 Bf3 Rb7 Bdc6 Bc8 Rd6 Ne6 Be5 Re7 Ba7 Nec7 Bh5 Rg1+ Kh3 g2 Bf6 Rh1+ Kg3 g1N Nd7 Nh3 Kg2 Ne6 Rdd4 Nec7 Ra4 Bb4 Ra6 Bc3 Bcf3 Bca5 Bc6 Rh2+
K1Bq3r/RB2P1B1/brR1bnRn/NP4q1/2Rpr1k1/2r5/bn1b4/R7 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 g5 h5 Qd3 Ke7 Qf5 Ke8 Qg4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 c4 a4 b4 a3 h4 g3 e4+ Kg4 h5 f5 e5 f2 c5 f3 b6 a2 c6 g2 g6 d3 h6 d2 b7 d1N e6 f4 c7 Nb2 e7 Ra3 g7 Rc3 h7 Nh6 Ne2 g1Q Bg2 f1B Nd4 f2 Nb3 f3 Na5 Ba6 b5 f1B g8R+ Bg7 Bg5 f2 Bf6 Bc4+ Kd6 f1R Rh4+ Kg3 Re4 Rf4 Be5 Bb3 Rc4 Kg4 Kd5 d6 Bf6 Nd7 Kc6 d5 b8R d4 Ra8 Qc1 Ra7 Re4 Be5 Nf6 Bh1 Bf5 c8B Qg5 Bg2 Bf8 Rg6 Be6 Bh1 Rg8 h8R Bg7 Rh7 Rh8 Bg2 Nf7 Rhh1 Bh6 Rac1 a1R Rhd1 Nh5 Bg7 Nf6 Rc2 Ra3 Ra1 Ba2 Rcc1 Qf8 Kc7 Qd8+ Kb8 Ra4 Rc6 Rac4 Ka8 Rc5 Rcc7 Rc6 Rc2 Rb6 Rc6 Rb3 R2c5 Rc3 Rc4 Ree3 R6c5 Re5 Bc6 Re2 Bf8 Re4 Rg7 Qg6 Bb7 Bg5 Rc6 Bd2 Rg8 Qg5 Rg6 Nh6 Bg7 Qd5 Rh1 Qd6 Ra1 Qd8
Rn4bq/5BB1/2RbQ1b1/1q1rRB1P/P4kn1/q3ppR1/K5R1/2b1r2r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e5 Bh3 Ra6 Bf1 Ra8 e4 f6 Ne2 Kd7 Nf4 Ke8 Na3 Rh7 Nc4 exf4 e5 Rh6 e6 Rh8 Ne5 fxe5 d4 Ke7 Kd2 Kd6 Kc2 g5 Kb3 b5 a4 c5 h4 c4+ Ka2 f3 f6 e4 e7 g3 e8B g4 f7 c3 Bh3 e3 Bg2 c2 Rg1 b3+ Kb2 b4 Bb5 Be6 Be8 Nh6 Ra2 Ra5 Bh3 g2 Qf1 g3 Bf5 Ng4 Qc4 Be7 f8R Bg8 Bf7 Qe8 Bd2 c1B+ Ka1 Qb5 Re8 b2+ Kb1 Bf8 Re5 Rh5 Bc3 Qe8 Rh1 g1R Rh3 g2 Rg3 Re1 Qc8 g1Q Qe6+ Kc7 d6+ Kc6 d7+ Bd6 d8R Rd5 Kc2 b1B+ Kb3 Qf1 Rd7 Qb5 Rag2 Bd3 Ka2 b3+ Ka1 b2+ Ka2 Qf8 Ra7 Qg7 Ra5 Qh8 Ra8 Rc5 d5+ Kc7 Ka3 b1Q+ Bb2 Qc2 Ka2 Qc3 Ba1 Be7 d6+ Kc6 d7+ Bd6 d8R Rd5 Bh7 Bg6 Re8 Kc5 Rc8+ Kd4 Rc6 Kd3 Rg5 Qcb4 Be5 Ke4 Bg7+ Kf4 Re5 Rdd1 Rec5 Rhd5 h5 R5d3 Re5 Rd5 Re2 Rh1 Reg2 Rde1 Be8 B6f7 Bf5 Bg6 Bf7 Qa3#
r2nnn2/2P3QK/3r4/pRqB1BR1/1RRBPR1p/7b/3r4/2bq1brk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 g4 h6 Nf3 Ke7 h5 Ke8 Nh4 Ba6 Nd2 Bb7 Ndf3 gxh4 g5 Ba6 g6 Bc8 Ng5 hxg5 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kf3 Kd5 b4 a5 g7 g4+ Kf2 Ke4 c4 d5 e3 g3+ Kg2 f3+ Kh3 d3 b6 d2 b5 g2 c5 g1R c6 f2 b7 f4+ Qg4 d1R b6 d4 h6 d3 h7 d2 c7 Qd6 Bb2 Nc6 b8R Nf6 g8B Ne8 b7 Bh6 Bd4 Qc5 Ra4 Nd8 Rc4 Bd7 Be2 f1N Be6 Nh2 Qg7 Bc8 Bd3+ Kf3 Bdf5 Ng4 e4 Ngf6 Bd5 Nd7 Rh2 Rf8 h8R Rf6 Rf8 Rd6 Rg2 Bg5 Rf7 Nf8 Rf6 Bh6 Rg5 Be6 Bb2 Kf2 Bd4+ Kf1 Rf7 f3 Rf6 f2 Rf7 Rh1+ Kg4 Kg1 Kh5+ Kh2 Rf6 f1B Rf7 Rg1 Rf6 Nd7 Kg6 Kh1 Kh7 Nf8+ Kh8 Ng6+ Kh7 Bd7 Rc8 Be6 b8R Bd7 Rbb4 Nf8+ Kh8 Be6 Rcb8 Bd7 R8b5 Bc8 Bg6 Bch3 Rf3 Rb1 Rf4 d1Q Bf5 Rb2 Rh5 Ng6+ Kh7 Rd2 Rf3 Bf4 Rg5 Be3 Rf4 Nf8+ Kg8 Rc2 Kh8 Bc1 Kg8 Rd2 Kh8 Nfe6 Kh7 Nf8+
2q1n1b1/1n1br2Q/1pp3R1/3nK1b1/BPRP3N/k1q1R1R1/3q1RR1/b1q5 w - - 0 1 legal: proof: c4 e5 a4 d5 f4 exf4 a5 dxc4 a6 b6 Nh3 Nd7 Nf2 Rb8 Nh3 Rb7 Ng1 Nb8 axb7 g5 g4 a5 d4 f3 Bf4 f2+ Kd2 h6 Nc3 gxf4 Ne4 h5 g5 Kd7 Nf6+ Ke7 Ng4 hxg4 Qc2 Kd7 Qd1 Ke8 Kc3 Kd7 b4 Kc6 e4 Kb5 h4 f5 e5 c6 h5 a4 e6 g3 g6 a3 e7 f3 e8R g2 g7 f4 h6 a2 h7 Na6 b8R Nc5 Ra8 Nb7 Rb1 a1B+ Rb2 Bd7 Ra7 Qc8 Ne2 g1Q Ra4 Qh2 Bg2 f1N Qe1 f2 Be4 f3 Ra3 Be7 Ng3 Ne3 Bc2 f1B Qb1 f2 Nf5 Bg5 Nh4 Nf6 g8R Bd3 Re7 f1Q Rg6 Qfh3 Rc1 Re8 h8R Qf4 Reg7 Re7 Rf8 Ne8 Rff7 Qfh2 Rf2 Be2 Kd2 Nd5+ Re3 Q2g2 Bb3 c3+ Kc2 Bh5 Kd3 c2 Ra2 Bhg4 Rb2 Bge6 Ba4+ Ka6 Rb3 Bg8 Rc3 Qhf3 Rc4 Qh2 Rg1 c1Q Rgg2 Qfh3 Re6 Q3g3 Ke4 Qgh3 Rgg3 Q2g2+ Ke5 Qgh2 Rf4 Qhd2 Rg2 Qg3 Qh7 Qge1 Rg6 Qcc3 Rff2 Qec1 Bd1 Kb5 Reg3 Qb3 Bc2 Ka4 Bd1 Ka3 Bc2 Qbd3 Ba4 Rf7 Ref6 Rg7 R6f3 Q3c3 Re3 Re7+
1Bb1n3/2PNNNr1/5RNp/1N2Kn2/1bq1NpPq/2p1q1Q1/8/3kr1qq w - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 b6 g5 Ra4 gxh4 Ra6 Qg5 Ra1 Qd8 c4 Qf6 b4 Qg5 e3 Qd8 b5 d6 Ra4 d5 Rb4 cxb4 c5 Qf6 Bd3 Qd8 Bc4 dxc4 Ke2 Kd7 Kf3 Ke6 Ke4 a5 g4 h6 d4 h3 b7 b3 c6 h2 b6 a4 c7 a3 Ne2 b2 Qd3 a2 Rf1 a1Q Na3 b1Q Nb5 Nc6 b8N c3 b7 f3 Nd7 h1Q b8N Nce7 Nc6 Nf5 Ne7 f2+ Kf4 f6 e4 Rh7 e5 Rg7 Qg3 Qd3 Bd2 Qg1 Be3 Qc4 Ke4 Qe1 Kf4 Ra4 Ke4 Ra1 Nf4+ Kf7 Nfg6 Ke6 Nc6 Bb4 Nce7 Qd2 Kf4 Re1 Ke4 Qd5+ Kf4 Qdh1 d5+ Kf7 d6 Ke6 Qg2 Qd3 Ba7 Qdh3 Qh2 Qh4 Bb8 Qe8 Nc6 Kd5 e6 Kc4 e7 Kb3 Qg3 Qd8 e8N Kc2 Nce7 Kd1 Nde5 Q4h3 d7 Qh4 Ned6 Qe8 N7c6 Qe6 d8N Qc4+ Ne4 Q1h3 Ndf7 Qgh1 Rg1 f1Q+ Nf3 Qf2 Rf1 Qfg1 N3e5 Ne3 Nce7 f5 Qf2 Nf6 Nd7 Ne8 Ke5 Q3f3 Qg3 Qfe2 Rf2 Qed3 Ra2 f4 Ra6 Nf5 Rf6 Qde3
q2q3r/1nk1N3/b3p2P/KB1nN3/P2bRp1R/b3N2N/R4b1p/r1N2n2 w - - 0 1 illegal: No proof kernel
2rqrR2/1Pbr1R2/R1p3qq/Pn1Nn2b/4R3/R1KN4/Q3p1kp/3N1q2 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 g5 h4 gxh4 e5 a4 e6 fxe6 Be2 e5 Bf1 e4 b4 a3 Bb2 axb2 a4 b5 a5 Bh6 Bc4 Bg7 Bb3 Bf8 Ba4 bxa4 g4 Kf7 f4 Kf6 d4 e5 Kd2 h5 f5 Kg5 d6 Kf4 f6 Kg3 g5 h3 d7 e3+ Kc3 h2 f7 c6 b5 a3 b6 a2 d5 h4 g6 e4 g7 e2 b7 e1Q+ Kc4 h3 d6 e3 Nc3 b1Q Qd3 Nf6 g8N Kg2 Qc2+ e2 Ne7 Qf1 Nd1 Nd5 Nf3 Nc3 Nd5 Nb5 Ne5 Bh6 f8R Bf4 Qa4 Qg6 Rf7 Re8 Nd3 Bg3 Rc1 a1R Rc3 Ra2 Ra3 Rd2 Kb4 Qe7 d8R Nd7 Qc2 Ne5 Qa2 Bg4 Kb3 Rb8 d7 Bh5 Rc8 Qf8 d8R Qfh6 Kb4 Qff6 Rf1 h1Q Rf4 h2 Re4 Qhf1 Kb3 Re6 Rdf8 Re8 Rd8 Rc8 Kb4 Rc7 Ra8 Qd8 Ra6 Rc8 Kb3 Bf4 N3b2 Rd4 Nd3 Bg3 Ne7 Rd7 Nd5 Nc4 Kb4 Bc7 Kb3 Ne5 Kb2 Nd4 Kc3 Nb5+
1Nr1QR1b/1p6/1r2P1R1/RR1K1b1R/1Np5/bP4r1/p3k3/2qbqnnN w - - 0 1 legal: proof: f4 a5 g4 e5 c4 exf4 g5 d5 cxd5 h6 Nf3 hxg5 Ng1 g4 d3 Qd6 e3 Qf6 Bd2 Qd8 Bb4 axb4 d4 Qd6 a3 Qf6 Bc4 Qd8 Ba2 b3 Ke2 bxa2 Kd2 Bc5 Ke1 Bf8 Kf2 Ke7 h4 Kf6 b3 Kf5 d6 Ke4 d7 g5 a4 f5 a5 c5 h5 f3 h6 f4 d5 c4 a6 g3+ Ke1 g4 Kd2 f2 Kc3 f1B d6 g2 h7 g3 a7 f3 Rh5 f2 Rf5 Ne7 Qe2 Qe8 d8R Nbc6 d7 Nd4 Na3 Nf3 Nh3 g1R Rb5 g2 Nc2 Nf5 Re1 Rg8 h8R Ba3 Nb4 Ng3 Rhh5 Rg6 Rd1 Rc6 Rd6 Rb6 Rg6 Rb8 Qe1 Be2 a8R f1Q Raa5 Qe6 Re8 Qe7 d8N Bf5 Ndc6 Rc8 Rf8 Qg5 Ne5 Bd1 Nec6 Qe2 Nb8 Nf1 Qf2 Qe1+ Qd2 N3h2 Nf2+ Kf3 Kd4 Qh6 Qc3 Ke2 e4 Qc1 e5 Nf3+ Kd5 Rh1 e6 g1B Re8 Rh3 Nh1 Rg3 Qh8 Bd4 Qg8 Bh8 Qf7 Ng5 Rf8 Nh3 Qe8 Ng1
1Nb3N1/1r2q1n1/p3PQ2/2b1K1P1/2N2RNB/1rr1pNp1/1r4r1/1krn2N1 w - - 0 1 illegal: No proof kernel
2q1n1n1/5Nrb/1q1r1P2/2P1NB1b/4Rb1k/Bp3p1N/p1qNp2N/2B4K w - - 0 1 illegal: No proof kernel
2b2K2/br2N2p/r1B5/n1r5/pqNr3n/1Pq4k/NB1N1Ppp/4BNR1 w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 a4 gxh4 g5 c5 Nd2 b5 axb5 f5 Nb1 c4 Qd3 Qf6 Ra3 Qe7 Qf3 Qd8 Qg4 fxg4 Rd3 cxd3 Kd2 Kf7 e4 Ke6 c4 a5 g6 d5 b6 a4 b3 h3 c5 h2 b7 g3 c6 g2 c7 Ne7 g7 Nf5 g8N Ng7 e5 Kf5 e6 Kg4 e7 Kh4 e8N Nf5 Ne7 Ra5 Bb2 Ra6 Ng7 Nc6 b8B Na5 Nh5 Qd6 Nc3 Qb4 Nf3+ Kh3 Ng3 Nh4 Rg1 Rg8 Ba7 Rg5 Bb6 Rf5 Be2 Rf7 Nf1 Bh6+ Kd1 d2 Kc2 d1R Na2 Rc1+ Kd3 Be3 N3d2 Rc5 Bh5 Rg7 Be8 Rf7 Bc6 Rg7 Nf5 Re7 Nd6 Rg7 N6c4 Rf7 Kc2 d3+ Kc1 d4 Kb1 Bg4 c8N Rb7 Ne7 Bc8 Kc1 Bf4 Bd8 Bb8 Bc7 Ba7 Be5 Rd5 Bc3 Rc5 Kb2 Qb6 Ka3 Qc7 Nb1 d2 Bg7 d1Q Be1 d3 Bb2 Qg4 Nbd2 Bb6 Kb4 Ba7+ Kc3 Qg5 Kd4 Qgf4+ Be4 Qfd6+ Bd5 Qdb6 Bc6 Qb4 Ke4 Qg3 Kd4 Qg7+ Ke4 Qgc3 Kf4 Nf5 Kg5 Nh4+ Kh6 Re5 Ne4 d2 Kg7 d1R Kf8 Rd4 Ned2 Rc5
rB2b2R/2R4B/q1BNB3/1pRP2b1/1Pp3q1/1n1b2p1/K4pq1/1B1nk1n1 w - - 0 1 legal: proof: f4 a5 c4 b5 g4 e5 e4 h5 d4 hxg4 f5 a4 f6 Ra6 b4 Rc6 Qb3 axb3 Na3 Re6 Nc2 d6 d5 Kd7 Nd4 exd4 e5 Re7 c5 dxc5 fxe7 c4 Kd1 f5 h4 c5 a4 g5 e6+ Kd6 e8B Ke5 e7 Ke4 a5 c3 h5 b2 Kc2 b1B+ Kb3 c4+ Ka3 g3 a6 f4 a7 d3 a8B g2 h6 g4 h7 g3 Bec6 c2 e8B d2 Bh5 Ke3 Bcb7 Kf2 Kb2 d1Q Nf3 g1N Ra3 Nh6 Ne1 f3 Ng2 Qb6 Bd3 Bd7 Ne3 Be8 Bhg6 Qa6 Bc8 Nc6 Nf5 Ng4 Be6 Na5 Bf4 Ke1 Bb8 f2 Nd6 Bh6 Bc6 Bg5 Rh6 c1Q+ Ka1 Bc2+ Ka2 Ne3 Bgf5 Rg8 h8R Qg4 Bh7 Nd1 Bdf5 Bd3 Bfg6 Be2 Bb1 Bd3 Rf6 Rf8 Rf7 Qcf4 Rc7 Qe4 Rc8 Qg2 Rc7 Bdg6 Rf3 Bc2 Rff7 Bd3 Rg7 Rf7 Rc8 Ra7 Rgc7 Ra8 Bb7 Qa7 Rc5 Qb6 R8c7 Qa6 Bc6 Nb3#
2BBN1qB/rnn5/pb3pR1/2N3rk/3KN2r/2PpN1pn/3P3n/3q2N1 w - - 0 1 legal: proof: b4 b5 g4 e5 a4 c6 f4 exf4 c3 bxa4 g5 c5 b5 Nf6 Qb3 Ng8 Qb4 cxb4 e4 h5 g6 f6 Na3 Bb7 Kf2 Ke7 Bb2 Bd5 Rd1 Bf7 gxf7 Kd6 Re1 Ke6 Re3 Kd6 Rg3 Ke7 Rg4 hxg4 h4 g5 b6 d5 b7 a6 h5 g3+ Ke2 g4 Kd3 d4 h6 b3 e5 f3 h7 f2 e6 g2 Kc4 g3 Rh2 d3 Ba1 b2 Be2 f1N Bf3 b1R Bg4 Nd7 b8N Rb5 Rh3 Rg5 Rh6 Nc5 Bh3 Nh2 Nd7 Nb7 Bb2 Ra7 Nc2 a3 Nc5 a2 Ba3 a1Q Ne3 Qd1 Rg6 Bh6 f8N Ke8 e7 Kf7 e8N Ne7 Nc2 Nd5 Ne3 Nc7 Nfe6 Bf8 Ne4 Bc5 Bb4 Bb6 Be7 Qb8 Bd8 Qc8 Nf3 g1N N6c5 Qb8 Bc8 Nh3 Ng1 Qa8 Kd4 Qb8 Rg8 Qa8 Ng7 Kg6 Ne8+ Kh5 Rg7 Rg8 h8B Rg4 Re7 R8g5 Rg7 Rh4 Rg6 Nf4 Be6 Qc8 Bf5 Qe6 Bh3 Qg8 Bc8 Nh3
b6B/p1K1n3/1N1pppBb/pB1q2R1/1n4B1/1qkpPP2/2r1bRB1/2R5 w - - 0 2 legal: proof: b4 g5 d4 c5 a4 cxd4 b5 b6 a5 bxa5 b6 g4 b7 Na6 bxa8B Nb8 Qd3 h6 Kd1 h5 f3 g3 Qe3 Rh6 Qf2 gxf2 Ra3 Rh7 Ra1 Rh8 g4 Nf6 g5 Rh6 Nc3 Rh8 Nd5 Ng8 Ne3 Rh7 Ng4 hxg4 Bg2 Rh4 Bf1 Rh8 Kd2 d6 Kd3 Kd7 Kc4 Ke6 Kb5 Ke5 c4 g3 h4 d3 h5 Kd4 g6 g2 h6 Bg7 c5 Bg4 e3+ Kc3 h7 Bf5 c6 Nd7 c7 Nb6 Kc6 Kc2 c8B Bd4 g7 Kc3 Bb2+ Kb3 Rh5 Nd5 Nh3 g1Q Rc1 Be4 Bg2 f1B Rg5 Be2 Bg4 e6 Nf4 Qb8 Bb7 Qh2 Ba6 Qh5 Bb5 Nge7+ Kd7 Re8 h8R Rc8 g8B Rc2 Bh7 Bg7 Bg6 Nb4 Nd5 Bh6 Nb6 Ba8 Bg7 f6 Rh7 Na2 Bh8 Kc3 Rg7 Qb7+ Kd8 Qd5 Kc7 Nb4 Rg8 Qh1 Rg7 Qd1 Rh7 Bf8 Rh1 Bh6 Rf1 Qb3 Rf2 Qh1 Re5 Qh5 Rd5 Qf5 Re5 Qe4 Rg5 Qed5
1b1Bkq2/1B1bp3/p1n1Pp2/r2q4/1b1r4/1q2R1R1/P2B2B1/BQnbbRK1 w - - 0 1 legal: proof: f4 g5 c4 gxf4 c5 d5 c6 d4 Nh3 bxc6 Ng1 c5 Qb3 c4 Qc2 Nc6 Qd1 Nb8 g4 h6 Nc3 dxc3 Nh3 h5 g5 Rh6 Nf2 Rh8 Ng4 hxg4 Kf2 c5 h4 f3 e4 c2 d4 g3+ Kg1 g2 b4 f2+ Kh2 g1B+ Kg2 c3 b5 f6 e5 c4 d5 Bh6 d6 Nc6 h5 Bh2 b6 Bd7 g6 Bd2 b7 Nh6 b8B Nf5 e6 Be1 h6 Nfd4 g7 Ne2 Be3 c1B g8B c2 h7 c3 Bg5 Ba3 Bf4 c1Q Bd2 c2 Rg1 Qb2 Qb1 c1Q Kh1 a6 Rg3 Bb4 Bg2 f1B Ba7 Qbc2 Bd4 Qb3 Be5 Qcc4 Bf7+ Kf8 Bg6 Nc1 B6e4 Be2 Bec3 Rg8 h8R Ke8 Rhh3 Qd5 Re3 Be5 Kg1 Bd1 Rhg3 Rg4 Bef3 Rb8 Be4 Rb5 Bb2 Ra5 Bbc3 Bc8 d7+ Kf8 Bef3 Bb8 Be5 Qe8 d8B Qf7 Be4 Ke8 Bef3 Qf8 Bb2 Qdc4 Be5 Rd4 Be4 Na7 Bb7 Qd5 Bh3 Ne2+ Kh2 Nc6 Rc3 Rf4 Qd3 Bc2 Bg2 Bf2 Rf1 Bd1 Qb1 Nc1 Rce3 Bd7 Ba1 Be1 Kg1 Rd4
r2Bq1Q1/b3B3/p2Q2pQ/2RPb2p/2Q3KQ/2q2nb1/5P1p/k2r3R w - - 0 1 illegal: No possible last move
qB4b1/p5R1/bP4Rr/b1Bb3r/4q1R1/1RP1Q1Q1/k2n4/nR2n1Kr w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 exf5 Qc7 c3 Qd8 Bc4 d3 Bb3 Qa5 Ba4 Qd8 Bc2 dxc2 g4 g5 f4 h6 f6 Rh7 f5 Rh8 Ne2 Nc6 Nf4 Nb8 Nd2 gxf4 Ne4 h5 g5 Ba6 Nf2 Bc8 Ng4 hxg4 Kf1 Kf7 h4 e5 b4 d5 h5 d4 b6 e4 b5 f3 h6 f2 h7 g3 b7 e3 b6 g2+ Ke2 f1B+ Kf3 g1R Rb1 e2 Kf2 e1N Rb4 d3 Rd4 d2 Rd5 Bb4 Rh2 Ba6 Qg4 d1B Qg3 Bf3 Ba3 c1Q Rh1 Ba5 Rb5 Bd5 Rb3 Bce6 Bc5 Nd7 b8B Qb1 Rh4 Rh1 Rg4 Qe4 g6+ Ke8 g7 Kf7 Qe3 Rh6 Kg1 Rh5 Be5 Rc8 Qg3 Rc6 Bf4 Qa8 Bb8 Ne5 Rg6 Nh6 g8R Nc4 Rg4 Nd2 R8g7+ Ke8 f7+ Kd7 f6 Nf5 R7g6 Nd4 f8Q Bg8 f7 Ndc2 Qh6 Na1 f8R Rd6 Rg7+ Kc6 Rf1 Rf6 Qhe3 Rfh6 Bb4 Kb5 Bc5+ Ka4 R4g6 Ng2 Rfb1 Ne1 Rb4+ Ka3 R4b3+ Ka2 Rg4 Bge6 R4g6 Rf8 h8R Bg8 Rg4 Rf2 Rhh7 Rfh2 R7g6 R2h4 Rhg7 Rh1+
q1R1B3/Rr1R3Q/Pq1qkr2/8/1b1PrrR1/3QrbB1/2K1Rn2/3n1bn1 w - - 0 1 legal: proof: g4 g5 b4 h5 c4 e5 f4 d5 cxd5 a5 Na3 axb4 Nc4 e4 Ne3 gxf4 Nf3 exf3 g5 Be7 Ng4 hxg4 Bh3 Bc5 Bf1 Bf8 e4 Kd7 d4 f5 Kd2 c5 h4 b5 a4 g3 g6 c4 a5 b3 h5 f2 g7 c3+ Kd3 g2 a6 g1N h6 c2 h7 f3 d6 b4 e5 f4 Rh6 b2 Qe1 b1Q Bd2 b3 Qd1 c1Q+ Qc2 b2 Ra5 Bb7 Rh5 Nc6 Bg2 f1R Be1 f2 Rf5 f3 Ra3 Ke6 d7 Nf6 g8R Ne4 Rg4 Bb4 Rh5 Nc3 Rhg5 Re8 h8Q Qf4 Qh3 Nd1 Qg3 Qf8 Rh5 Qd6 Ra2 Ra7 Rh7 Qa8 d8R Re7 Bc3 Re1 Rd7 f1B+ Kd2 f2 Qgd3 Re3 Be4 Rf7 Bg6 Rf4 Be8 Ree4 Qh3 Rf6 Qcd3 Rff4 Rhf7 Re3 Qdh7 Qg6 Qf3 b1R Qe2 Ree4 Qd3 Rb3 Kc2 Qf6 Be1 Qh6 Qf3 Rbe3 Qe2 Qf6 Qd3 Qfd8 Rb2 Qb6 Ra2 Kd5 e6 Ne5 e7 Ke6 Rb2 Bc6 Rfg7 Rb7 Ra2 Bg2 Rb2 f1R Bg3 Bd5 Rb1 Rf6 Rc1 R1f4 Rf7 Bf1 Rfg7 Nc3 Re1 Bc6 Re2 Nd1 Rd8 Bd2 Qb5 Ra7 Bh5 Bb4 e8R+ Re7 Rc8 Nd3 Red8 N3f2 Qd3 Re5 Be8 Bf3 Rf7 R5e4 Rfg7 Rb7 Rf7 Rb8 Ra7 Rb7 Rd7 Rf8 Qg7 R8f7 Qh7 R7f6
3N4/nqPn1Q1b/2pr1Q2/1Q2qn1K/4Pb2/Q1qn1N2/nQrBk2r/1B6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 b6 exf4 g4 Nc6 c4 Qe7 b5 Nd8 Ra4 Qd6 Rb4 cxb4 c5 Qf6 c6 Qe7 c7 Nc6 Rh3 Nb8 Rc3 Qd8 Rc6 dxc6 Kf2 Kd7 Kf3 Kd6 e4 Ke5 b7 Kd4 b6 h5 g5 a5 d3 f5 g6 b3 g7 b2 Qe2 h3 Nc3 b1N Qh2 h4 Nd5 a4 Ne3 a3 Qa2 h2 Ng4 h1R Bh3 Qe7 Qa1+ Nc3 Bf1 h3 Qb2 a2 Ne3 a1Q Nd5 h2 Bh3 Qe5 Nb4 Nd7 b8Q Rh6 b7 Ne7 g8Q Ra2 Qg7 Rd6 Qg3 Bh6 Qe2 Rc2 Qg6 Na2 Na6 Qc3 Qa8 Bg5 b8Q Bh6 Kf2 f3 Qb5 f4 Bd2 Bg5 Qf7 Bh6 Kf1 f2 Kg2 f1N Kf3 Ne3 Be6 N3f5 Kg4 f3 Nc5 f2 Nb7 f1Q Kh5 Qb1 Qa3 Bf4 Nd8 Qbb2 Qba5 Qb7 Qb5 Nc5 Bd5 Bd7 Qg2 Nc8 Bb3 Na7 Qgg7 Rc1 Bc2 Bc8 Qgf6 Nd7 Bb1 Rc2 Qab2 Re6 Q6e7 Rf6 Qea3 Rd6 Be1 Ke3 Nf3 Ke2 d4+ Qc4 d5 Qd3 Q5b4 Qdc3 Bd2 Rg1 Qg8 h1N Qf7 Nf2 Qc4+ Nd3 Qcb5 Rf6 d6 Rg2 Qg6 Nb6 d7 Rd6 Qf7 Rf2 Ne6 Rg2 d8Q Rh2+ Qh4 Bd7 Nd8 Be6 Qe7 Nd7 Qf8 Bg8 Qf7 Rg2 Qhe7 Bh7 Qef6 Rh2+
2bn4/1nRR1rRb/1Nr1b3/3rP3/Nk2P3/1nR1qRp1/QKQ5/2q3bq w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 axb4 d4 c5 Bf4 g5 Bh3 gxf4 g5 cxd4 Bg4 hxg4 Kd2 Ke7 Kc1 b5 h4 d5 a4 f5 e3 f3 g6 d3 a5 d2+ Kb2 f2 g7 f1B a6 g3 c3 b3 a7 b4 h5 d4 h6 f4 h7 f3 Qc1 d1R Ra2 f2 Rh2 d3 Ne2 d2 Rg2 Nf6 g8R Qe8 Ng1 Nc6 Rg5 Nd8 Rh5 Ne4 Rh1 Bc4 Nf3 f1N Ra3 B4e6 Rh5 Nd6 Rg5 N6b7 Rf2 Kd7 Rg6 Kc6 Rg7 Kb5 Qc2 Bc5 Rd7 Rb8 a8Q Rf8 h8R Rf7 Rg8 Rc1 Rg5 d1Q Rg7 Nd2 Qa7 Qh1 Qa8 Ne4 Nfd2 Ba7 Rf5 Nec5 Rf3 Rd1 Nc4 Rd5 Nb6 Qc1+ Ka1 b2+ Ka2 Qe7 Rb3 Qg5 c4+ Ka5 Rc3 Nb3 c5 Qh1 Nd2 b1B+ Kb2 Qgh6 c6 Qf4 Qc1 Bh7 e4 Qe3 c7 Kb5 Na4 Bb6 Qa7 Ra8 Qb8 Ra6 Qa8 Bd4 Qb1 Rc6 Qc2 Nc1 Rf1 b3 Rf3 Qe2 Ka1 Kb4 Nc4 Bg1 Ncb6 Qe3 Nc5 b2+ Kb1 Nb3 Qa2 Qh5 Nca4 Qh1 Rd6 Bcd7 c8R Qe2 Rc7 Bc8 Rdd7 Qe3 Qa1 Ka5 Ka2 b1Q+ Ka3 Qbe1 Kb2 Kb4 Qa2 Q1c1+
2NNbn2/2Nnr3/nQ2q3/R2p3b/3Rp1qb/1n3NPK/Q1PN4/1r1k1n2 w - - 0 1 illegal: No possible last move, all moves rejected
N1kqb1Kn/n5q1/3Qnr2/2p1r1BB/1p5b/1B4BQ/1PP2Nr1/1n2n1B1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 e5 g5 fxe4 dxe5 h6 Qd2 hxg5 Qd1 g4 a4 Bc5 Ra3 Bd6 Rb3 Bf8 Rb4 axb4 h4 Kf7 Rh3 Ke8 Ra3 bxa3 Ke2 c5 Ke3 b5 Kf4 d5 h5 Kd7 Kf5 g5 Kg6 d4 Kf7 a2 f4 a1N a5 b4 f5 e3 a6 e2 f6 e1N a7 g3 h6 g4 h7 d3 Ne2 g2 Bh6 g1Q Nd2 g3 Nc4 g2 Nc1 d2 Nd3 Nb3 Nf2 Nc6 Bg5 Nge7 e6+ Kc7 Be2 Bd7 Bh5 Nbd4 Nb6 Ng6 e7 Ne6 e8Q Be7 Qg4 d1N Qf8 Kb7 Qh3 Nc3 Qh6 Rb8 Na8 Re8 h8B Kc8 Qf8 Rb5 Kg8 Rb6 f7 Nb1 Bd4 Nh8 Bde3 Bf6 Bd4 Re7 Bde3 Be8 Qh6 Qd5 f8B Qd8 Qg6 Ra6 Qd3 Rb6 Qd6 Ra6 Bfh6 Rb6 Bgf4 Bh4 Bhg5 Ra6 Bg3 Rb6 Nc7 Ra6 a8B Na7 Bd5 Rb6 Bd2 Rc6 Bb3 Rb6 Nh1 Qd4 Bde3 g1R Nf2 Rg2 Na8 Rf7 Nd3 Rf5 Qe7 Nf4 Qe6+ Q4d7 Qe5 Rbf6 Bg1 Ne6 Qd6 Re5 Nf2 Qg7#
2K3b1/R2qk3/r7/Pr2nQN1/1RN1q1N1/6qp/bbprPbn1/1N1NQ3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 cxd5 e5 h5 exf4 g4 Qe7 Bb2 Qd6 Bd4 Qf6 Bf2 Qd8 Bh4 gxh4 g5 Qd6 g6 Qa6 g7 Qh6 Bh3 Qf6 Bf5 Qd8 Bg6 hxg6 Kf2 b5 Kf3 c5 Ke4 f5+ Ke5 g5 a4 f3 d4 g4 d6 f2 d7+ Ke7 d5 f1Q a5 c4 h6 g3 h7 g2 Nc3 b3 Qd4 h3 Re1 b2 Rd1 b1Q Qg4 b4 Rh2 f4 Ne4 b3 Rh1 b2 Nc3 f3 Qf5 f2 Nf3 g1B Nd2 Nh6 g8Q Ra7 Qg3 Qg2 Rc1 f1R Nd1 c3 Qe1 Qe8 d8N Ra6 Nb7 Qd7 Nd6 Bf2 N6c4 Qc2 Rg1 b1B Rh1 Ba2 Nb1 Rg8 h8N Rg5 Nf7 Rh5 Ng5 Qg3+ Qf4 Nf5 d6+ Ke8 Kf6 Ne3 Qf5 Ng2 Rg1 Qca4 Rc2 Kd8 Rb2 c2 Rb4 Be7+ Kf7 Bf6+ Kf8 Qdc6 d7 Bb2 Kf7 Qe4 Kf8 Nc6 Kf7 Kc7 d8N Be6+ Ke8 Ne5+ Nc6 Bg8 Ke7 Nf7+ N6e5 Qd7+ Kf8 Kd8 Ng4 Nh4 Rg2 Ne5 Rg1 Qh2 Rg3 Ng2 Rgb3 Rg1 Rb7 Qg3 R3b4 Rhh6 Rc7 Rhb6 Ra7 Rb5 Qf1 Rbb6 Ndc3 Bd4 Q1f2 Rd1 Qe1 Rd2 Nd1 Qdb7 Rb3 Bf2 Rb4 Kc7 Ke8 Rb5 Ke7 Kc6+ Ke8 Kd5 Kd8 Qf7 Nca3 Kd6 Kc8 Qfd5 Ra8 Qdd3 Nc4+ Ke7 Ra7+ Qd7+
nN3b2/1nn4r/3pbN1K/1n1QN1rn/2P3p1/N3k2q/B2nN1PB/Qq6 w - - 0 1 legal: proof: b4 e5 h4 g5 f4 gxf4 d4 h5 Rh3 c5 Rg3 cxd4 Rg4 hxg4 a4 b5 Ra3 e4 Rf3 exf3 axb5 Rh5 Kd2 Rh6 Ke1 Rh8 Kf2 Ke7 c4 Kd6 e4 Ke5 h5 f5 h6 a5 b6 d6 b5 a4 b7 a3 h7 d3 b6 Kd4 e5 d2 e6 a2 e7 a1N e8N Ra7 Nf6 Ne7 Qa4 d1N+ Ke1 f2+ Kd2 f3 Ba3 f4 Bb2+ Nc3 Qa2 Na6 b8N Nd5 b7 Be6 Bd3 f1Q Nfd7 f2 Bc1 f3 Qa5 Rg8 h8N Rg5 Qa4 Nb5 Qa2 Ndc7 Nf6 Na8 Na3 N6c7 Bb1 Qe8 Ng6 Nb3+ Kc2 Qc8 Ne5 Na5 Bf4 Qd8 Bg3 Ke3 Qa1 Qe7 Bh2 Qh7+ Nd3 Qh3 Ne2 Qg1 Ba2 f1N Ne5 f2 Kd1 Ng3+ Kc2 f1N Kc1 Kf2 Kd1 Ne3+ Kd2 Nef1+ Kd3 Nh5+ Ke4 Nhg3+ Kf4 Nd2 Na6 Qe1 b8Q Nb7 Qe8 Qb1 Qh5 Rg7 Nb8 Ra5 Qg6 Nh5+ Kg5 Ke3 Kh6 Ra6 Qh7 Rc6 Qg8 Rc5 Nec6 Rcg5 Ne5 Bf5 Qd5 Bd7 Qb2 Be6 Qa1 Rh7+
N2qQ3/Rbn3pp/P1NnpRR1/Q2bP1R1/3q3K/1r6/rk6/1brb3R w - - 0 1 illegal: No proof kernel
2nkr3/QK1Pqr1N/r3b2p/b1bRbP2/4R2N/Rp1Q4/qp3R2/2R1n3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 g5 fxe4 h4 Nd7 g6 Nh6 Bb2 Rh7 Be2 Ra6 Bg4 hxg4 h5 Ng8 h6 Rh8 h7 Nb8 Bd4 Ra5 Be3 Ra8 Bh6 gxh6 Ke2 e5 Ke3 c5 a4 b5 d4 c4 f4 c3 g7 c2 a5 c1B+ Nd2 g3 f5 b3 d6 b4 a6 g2 a7 b2 d5 b3 Qf3 Be6 Rh4 Nc6 Ra3 Nge7 g8R Qa5 d7+ Kd8 Nh3 g1R Rg2 Nc8 Rf2 Nd4 Ng5 Bc5 Rh1 Re8 h8R Qa6 Nh7 Rg7 Rg8 Re7 Rg4 Rf7 Qe2 Qa4 Qd3 Nf3+ Qd4 Rb8 a8Q Rb6 Qa7 Ne1 Rgh4 Ra6 Rhf4 Bf8 Qd3 Qa5 Ke2 e3 Re4 Bc5 Nf3 Bd2 Nh4 Bc3 Rhf1 Nf3 Rc1 Ne1 Kf1 e2+ Kg1 Nc2 Kg2 e1B Kf3 Qa4 Rd4 Ba5 Ke4 Bc7 Rc4 Bea5 Rd4 Ke7 d8R Ne1 Raa1 Qa2 Rd6 Qb1 Ra3 Qa2 Rdc4 Bd7 Rd4 Kd8 Re6 Bb8 d6 Bbc7 Kd5 e4 Re5 e3 Rda4 e2 Rae4 Bb5 d7 B7d6 Re6 Be5 Rb6 Bc4+ Kc6 Be6 Kb7 Ng2 Rc6 e1Q Rd6 Qe3 Rd5 Ne1 Qb8 Qg5 Qa7 Qe7
1b3r1k/6p1/2b2b2/Q1qPB3/2bp1rQ1/1pR5/QQPn1R1K/1Bbb2nQ w - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 h5 d5 e5 fxe5 hxg4 e4 Ke7 e6 d6 e5 Ra4 Nc3 Rh3 Nce2 Ra7 Nd4 cxd4 Nf3 Rh8 Nh4 Ra8 Nf3 Ke8 e7 Kd7 e6+ Kc7 Ne5 dxe5 Bd3 Kd6 Be2 Ra7 Bf1 Ra8 Kf2 b5 Kg3 f5 e8Q f4+ Kg2 e4 h4 f3+ Kh2 e3 a4 g3+ Kh3 e2 h5 e1B a5 f2 h6 g2 a6 g1B h7 b3 a7 b2 Qg4 b1B e7 b4 Qf5 Bd7 Bg2 f1B Qg6+ Nf6 e8Q Be7 Qg5 Qc8 Ra2 Ne4 Qh4 Bg3 Bd2 Rf8 h8Q Be3 Qfg4 Bf6 Qg8 Qc5 Rg1 Nc6 Ra3 Be2 Qb8+ Ke7 Bf1 Ne5 Rg2 Bd1 Rc3 Nf3 Rf2 Bc6 Bc4 Ba2 Qgh8 Beg5 Bf4 Kf7 Be5 Bc1 Qb6 Bgf4 Qa5 Ned2 Qhg5 Rab8 a8Q Ng1+ Kg2 Bb3 Qh1 Kg8 Qa2 Bh2 Q8a5 Kh8 Qg6 Rb6 Qe8 Rb7 Qea8 Rf7 Qb2 Bg5 Q8a6 Rf4 Qa7 Bf6 Q7a6 Bba4 Ba2 b3 Bb1 Bab5 Qaa2 Bc4 Q6a5 Ne2 Kh3 Bg3 Bd6 Ng1+ Kg2+ Bgh4 Kh2 Be5 Bb8 Be7 Bd6 B5f6 Be5 Bd6 Rcf3 Bc7 Rc3 Bb8
3bbn1q/r4Q2/B1pp4/2nP1N1N/N1pn2r1/qkP4q/2pQ1n1K/B3NN2 w - - 0 1 illegal: No proof kernel
1rq1n2r/pPr2Qqk/6n1/3BbbPB/1Q6/BB3q2/1nN1NK1b/3Q4 w - - 0 1 legal: proof: c4 d5 b4 c5 a4 e5 h4 d4 g4 d3 f3 g5 f4 exf4 Ra2 b6 Rc2 dxc2 Rh3 Qd5 Rc3 Qd8 hxg5 b5 d4 cxd4 axb5 dxc3 e4 f5 b6 Kf7 b5 Kg7 b7 h5 b6 f3 c5 f2+ Ke2 h4 c6 h3 c7 h2 e5 h1N g6 f4 e6 f3+ Ke3 Nc6 b8Q Bd6 e7 Nf6 e8B Ne5 g5 Bf5 b7 Qc8 Bd7 Ne8 Bg2 f1Q Ba3 c1R Qe1 f2 Ba4 c2 Ne2 Kg8 g7 Kh7 Qc3 Ng6 Qb4 Be5 Bd5 Qg1 Bab3 f1Q+ Kd2 Nf2 Ke3 Qd1 Kf3 Nd3 g8B+ Kg7 Bgf7 Qd4 Kg2 Kh7 Kf3 Qd7 c8Q Nb2 Q8d6 Rb8 Qcc4 Qc8 Qd7 Qc3+ Kf2 Qh1 Qd4 Qh6 Qd1 Qg7 Nd2 Bh2 Nc4 Qh3 Ne3 Qf3+ Ke1 Rb1 Qc7 c1B Nc2 Bcf4 Qce7 Rc1 Qd7 Nh4 Bh5 Ng6 Qe6 Be5 Qf7 Qh3 Kf2 Qg4 Ncd4 Rc7 Nc2 Qf3+
3nkN1n/2B4Q/3P1qn1/1bP1r3/4rn2/BQQ1Bqq1/b3p2Q/Kb3N2 w - - 0 1 legal: proof: e4 f5 a4 fxe4 a5 b6 axb6 c5 b4 d5 h4 Bd7 c4 Bf5 b5 Bc8 Ra4 Nd7 Rb4 cxb4 c5 Nb8 g4 g6 f4 Bg7 g5 Bf8 f5 Ba6 f6 Kf7 Bc4 dxc4 Rh3 Qc8 Rf3 Ke8 Rf2 Bh6 Rf5 gxf5 g6 Bg5 hxg5 Qd8 Ke2 Bb7 Ke1 Bc8 d4 a5 Kd2 e5 Kc2 h5 Kb2 a4 g7 c3+ Ka2 b3+ Ka1 b2+ Ka2 a3 b7 f4 d5 e3 g6 h4 b6 e4 d6 e2 Qe1 h3 Qd1 e1N Qf3 e3 Qh1 h2 Bd2 c2 Bb4 f3 Bd2 f2 Bc3 f1B Bb4 Ng2 Be1 Nc6 b8Q Nh6 b7 Nf7 Nh3 Ra4 Ng5 Nf4 Bb4 Bb5 Nh7 e2 Nd2 b1B+ Ka1 c1N Nf1 a2 Ba3 Be6 Nf8 Ncd3 g8Q Nde5 g7 Rh5 Qh8 Re4 g8Q Neg6 Qgh7 Rhe5 Qf3 h1Q Qc3 Qg1 Qh2 Qc8 Q8h7 Nfh8 f7+ Kd8 Qa8 Qg3 b8B Qb7 Qa4 Bec4 Qab3 Qa8 Nd7 Be6 f8B Ke8 Be7 Nd8 Bc7 Qd5 Bf8 Qdd3 Bh6 Qdf3 Nf8 Bec4 Kb2 a1Q+ Kc1 Qfg2 Qd4 Nd5 Be3 Q2f3 Qbd3 Bca2 Qb3 Rg5 Qdd3 Qd4 Qdc3 Qdf6 Kb2 Rge5 Ka1 Ndf4
6N1/bQ1P1pBN/nB6/B1p2P1k/3BKnq1/bQ1n4/n2n2r1/2N3rq w - - 0 1 legal: proof: b4 d5 d4 b5 c4 bxc4 e4 a5 exd5 Nd7 a4 Ra7 d6 Nb8 b5 Bb7 b6 Bc6 d5 Bb5 axb5 Ra8 h4 g5 g4 h6 f4 Rh7 f5 Rh8 Ra4 Nc6 Bg2 Nb8 Rb4 axb4 Bf3 Qc8 Rh2 Qd8 Rf2 h5 Be2 Bh6 Rf4 gxf4 g5 Bf8 Bg4 hxg4 Kf2 e5 g6 e4 h5 f3 Ke3 c3 g7 b3 d7+ Ke7 d6+ Kf6 h6 Kg5 h7 g3 b7 c2 b6 b2 Na3 b1N Nh3+ Kh5 Ng5 g2 Kf4 g1B Qd3 f2 Nb5 f1Q+ Ke5 e3 Nd4 e2 Bb2 e1N Nb3 c1N Bd4 Ra2 Ke4 Na6 b8B Ne7 g8N Ng6 b7 Rg2 Bba7 Na2 b8Q Nf4 Nc1 c6 Qe3 Ned3 Qb7 Qb6 d8B Qb4 d7 Qa4 Ne7 Rg8 h8B Bf2 Be5 Qh1 Ba5 Rg6 Ng8 Ba3 Qg3 Qad1 Bh8 Qg4 Nh7 Rg5 Bdg7 Bb6 Bd4 c5 Bhg7 Nd2+ Ke3 Bc7 B7b6 Bb8 Qgf3 Rg1 Qfd5 Ba7 Qb3 Qgh4 Nh6 R5g2 Ng8 Nf1+ Kf3 Qg4+ Ke4 Nd2+
4Q3/pq1qq1B1/bq2rB2/5nQ1/1n1NpK2/1PN1N3/Pr1B4/2n2Nrk w - - 0 1 legal: proof: d4 c5 e3 d5 b3 Nc6 Nd2 Nb8 dxc5 b5 c4 bxc4 Qf3 Qb6 Ba3 Bg4 Rc1 Qd8 Rc3 Bd7 Rd3 Bc8 Rd4 g6 Rf4 d4 Re4 d3 g4 f5 h4 g5 Bh3 Bg7 Qe2 Bd4 exd4 fxe4 f4 Kf8 f5 Ke8 Rh2 h6 Rf2 h5 Rf4 gxf4 g5 Nd7 Bg4 hxg4 Kf1 Nb8 Kf2 Qd6 Ke1 Qd8 g6 Kd7 Kf2 Kc6 f6 Kd5 f7 e5 f8N g3+ Kg2 e3 Kf3 c3 c6 c2 c7 c1N g7 g2 h5 Nc6 h6 Nge7 g8N Ba6 c8Q Nb4 h7 Nf5 Kg4 f3 Ne6 f2 Nf1 Ke4 d5 d2 d6 d1Q d7 Qb6 d8B Qd7 Qd2 e2 Nd4 e1Q Qg5 Qdb7 Nge2 g1R+ Kh3 Qd2 Bf6 Qd1 Qd7 Re8 Nh6 Re6 Ng4 Rc8 h8B Rc2 Kh2 Rb2 Bhg7 Qd2 Qe8 Qd1 Nb5 Kf3 Nge3 e4 Nec3 Qdd7 Kh3 Nbd3 Bd6 Nb4 Bf4 Qe7 Ng2 Qed7 Bd2 Qe7 Nge3 Qed7 Ng3 f1Q+ Kh2 Qc4 Ngf1 Qcc5 Nd4+ Kf2 Kh3 Qf8 Kh2 Qfe7 Kh3 Rh1+ Kg4 Kg1 Ng3 Kh2 Kf4 Rg1 Ngf1+ Kh1
1N4n1/P1p2rPQ/b1r1q1Qn/1Q1bQ3/3K2p1/p5R1/3NqR2/1R3nqk w - - 0 1 legal: proof: b4 b5 f4 e5 c4 exf4 g4 d5 cxd5 h5 a4 a5 Bh3 g5 Bb2 f3 Be5 Bc5 Bf4 gxf4 g5 Bd4 Bg4 hxg4 Qc2 f2+ Kd1 Bb6 Kc1 bxa4 Qd1 a3 Qf1 a4 Qd1 Ba5 bxa5 Rh7 Nh3 Rh4 Ng1 Rh8 Kc2 Kd7 Kc3 Kd6 h4 Ke5 d4+ Ke4 a6 f1B h5 f5 d6 a2 a7 f3 g6 f2 g7 a3 h6 f4 d5 f3 h7 Qf8 d7 Ba6 d8Q Bb5 d6 Qf4 d7 Nc6 Nd2+ Ke3 Rh3 Qd6 Qb1 Qd5 Qb8 Bc4 d8R Qf5 Rg3 Ne5 Rf8 Bd5 Q8b5 Qe6 Qg6 Nf7 Rb1 Nfh6 Rf4 Rf8 Rf6 Qf5 Rf7 Kf4 e4 Be2 e5 f1N e6 f2 Rf6 Rf7 e7 Bd3 e8Q a1Q+ Qb2 Qa2 Kd4 Ba6 Qbb5 Qc2 Ngf3 Qa2 Rb6 Qe6 Ne5 Qc2 Nd7 Qd1 Rc3 Qde2 Rc2 Kg3 Nb8 Kh2 Rb7 Qd7 Qe5+ Kh1 Rb3 Qe6 Rg3 Ne3 Rb2 f1Q Rb1 Qg1 Rf1 Nf6 Rf2 Nf1 Rb6 Rhf8 h8Q Ng8 Qhh7 Re8 Rc6 Rd8 Rc1 Rd6 Rb1 Rc6
5BBQ/7r/3r1rr1/1P1NnKp1/pN1b2N1/P2B3p/NQbkr3/2b2b2 w - - 0 1 legal: proof: d4 d5 c4 b6 c5 bxc5 e4 cxd4 Nd2 d3 Nb1 d4 Bf4 Qd6 Bc1 Qd5 h4 g5 exd5 e5 f4 e4 Na3 Nd7 Nb1 Ne5 fxe5 Kd8 Na3 Kd7 Nb1 Ke8 b4 Nh6 h5 Ke7 Nd2 Ng8 Rh4 Ke8 Rf4 Bh3 Ngf3 Rd8 Bb2 Nf6 Qa4+ Ke7 Be2 Ng8 Kf2 Nh6 Rh1 Ra8 Ng1 Nf5 Bf1 Nh6 Qd1 Ke8 Bc1 Bc8 Ke1 Ng8 g4 h6 Rh4 Ne7 Rf5 gxh4 g5 Ng8 g6 Bb7 Rg5 hxg5 Nb1 Ba6 Nd2 Bc8 Kf2 Ke7 d6+ Ke6 h6 Kd5 h7 a5 d7 f5 d8N c5 g7 a4 b5 h3 Kg3 c4 a3 f4+ Kf2 e3+ Kf3 c3 e6 c2 Kg4 e2 Nf7 e1R Ngf3 Ne7 g8B Ra6 Nb3 Ke4 Be3 d2 Na1 d3 Be2 Nc6 Bf2 Bc5 Qb1 d1R Bf1 c1B Nh6 Rd2 Ne5 f3 Qb2 Bd7 Bd4 f2 Nc2 Ba7 Be2 f1B Bc5 Be8 e7 Bg6 e8N Rb6 Nd4 Ke3 Nf6 Rc2 Bd6 d2 Bf8 d1R Bec4 Rcd2 Ne2 Bc2 Nc3 Ree2 Nd3 Ne5+ Kf5 Ra6 Ne8 Bc5 Na2 Rg6 Nf6 Ba7 Bcd5 Bb6 Be4 Ba7 Ne1 Rd7 Nd3 Re7 Ndb4 Rd6 Bd3 Ree6 Nfd5+ Kd2 Ng4 Bd4 Bf7 Rhg8 h8Q R8g7 Bg8 Rgd7 Nge3 Rh7 Ng4 Ref6+
1nkq1N2/r1nr2Rn/2N1R2P/1Q1QK3/1b4Q1/n1P2q2/nQ1b1q2/R1nb4 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 Kd3 f1Q Ke4 d5+ Ke5 Kd7 h4 a5 b4 f5 e4 f3 b6 f4 g6 g3 g7 g2 b7 a4 b5 f2 b6 f3 h5 a3 h6 d3 Rh3 d4 Nc3 a2 Qe2 d2 Nb5 d1N Rh2 d3 Kd5 d2 e5 Ne3+ Kd4 d1N Na3 Ra7 Nc4 Rh7 Rh1 Bb4 Rb1 a1N Na5 Nd5 Nh3 g1B Nc6 Ngf6 g8Q N1c3 Nf4 Nc7 Ne6 Na2 c3 Qg2 Qg4 f1N+ Qe3 f2 Qef3 Bh2 Rg1 Bf4 Rc1 Ne3 Qd5+ Bd6 Rb1 f1Q Re1 Qgf2 Nf8+ Ke8 e6 Rd7 e7 Bb4 Rc1 Nh7 Rd1 Bg5 Ke5 Nb3 Ra1 Nc2 Rg3 Bd2 Rg2 Nba6 b8Q Nbc1 b7 Qh1 Qa8 Na3 b8Q Qh3 Qbb5 Nb8 Qab7 Qhf3 Rg3 Ba5 Qb2 Bb4 Qbb5 Ba6 Qgc4 Bb7 Rg7 Bc8 Qg4 Ba6 Qb7 Be2 Qb6 Bd1 Qbb5 Rd6 Ne6 Kd7 e8R+ Kc8 Nf8+ Rd7 Ree7 Ra8 Re6 Ra7
B1Nb3r/1Qr1r2q/2b1N1b1/2qn3Q/2k2Kn1/Pn1b1P1N/2NB2q1/3r3Q w - - 0 1 legal: proof: c4 a5 e4 g5 b4 axb4 f3 d5 cxd5 f5 a3 fxe4 Qb3 g4 Qd1 g3 Ra2 Ra5 Rb2 Ra6 Rb3 Ra8 Re3 Ra7 Re2 Ra4 Rf2 gxf2+ Ke2 Ra8 g4 h5 h4 Bg7 g5 Bf8 Rh3 Ra5 Rg3 Ra8 Rg4 hxg4 Ke3 Kd7 d4 Kd6 h5 e5 g6 c5 h6 b5 h7 c4 g7 c3 Qd3 b3 Ne2 b2 Ng1 g3 Qd1 b4 Qe1 c2 Bd2 c1N Qd1 g2 Qa4 b3 Nc3 b1B Nge2 g1Q Ng3 b2 Bg2 Qb6 Be1 Bd7 Nh5 Qc5 Qb3 Bc6 Ne2 Na6 Nhf4 Be7 Nh3 Nf6 g8N Nc7 Bd2 Bd8 Ne7 Rc8 Bf1 Qg2 Qb6 Nb3 Qb7 Kd7 d6 Ke6 d7 Kd6 Nf5+ Kd5 Ne7+ Kc4 Ng3+ Bd3 Ngf5 b1Q Be2 Re8 h8Q f1B Qh5 Rh8 Bd1 Bfe2 Bc2 Qbh1 Bb1 Bc2 Ba2 Bed3 Bb1 Ne6 Ba2 Rc7 Nc8 Nf4 Bb1 Qg8 Ba2 Qh7 Bb1 Qg2 Ba2 Qf8 d5 Qc5+ Nd4 Qgg6 d6 N4d5+ Kf2 Ng4+ Kg3 e3 Bb1 e4 Ba2 Bd1 Nc2 e2 Bb1 e1R Ba2 Bg5 d8Q e3 d7 e2 Qf6 Rh1 d8N e1R Qa1 Ree7 Ne6 Qgg7 Bb1 Bg6 Ba2 Be2 Qf1 Qgg8 Qg2 Rd1 Qh1 Bed3 Bb1 Nc3 Ba2 Bf6 Kf4 Qgg7 Bb1 Nd5+ Kg3 Qgh6 Nb4 Bc2 Qa8 Bce8 Nf2 Rg7 Bg5 Nc3 Nh3 Bd8 Bc1 Bcf5 Be4 Rge7 Nc2 Qd2 Qc6 Qf2+ Kf4 Qg2 Bd2 Bd7 Qa8 Ba4 Bb7 Bc6 Qa7 Bfe4 Ba8 Bd3 Qb7 Nd5+
Q2Qb2k/bRb3qr/nrN2nn1/Rr4R1/R1N4q/1q5Q/P1p4P/2K4q w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Na3 f5 Nb1 f4 Bb2 g3 Bd4 Bf5 Bf2 Kd7 Qb3 gxf2+ Kd1 Bh3 Kc1 Ke8 Qd1 Bc8 g4 h5 g5 Qe7 Bh3 Qd8 Bg4 hxg4 d4 f1N e4 c5 e5 b5 d6 f5 d7+ Kf7 g6+ Kg7 d5 b3 d6 c4 e6 b4 e7 g3 e8Q g2 Qde1 f3 Q1e2 b2+ Kd1 f2 Q2e5+ Nf6 Qd4 c3 Qa7 b3 Qb6 f4 Qee3 f3 Qe8 Ng3 Qd4 f1Q+ Qe1 f2 Qc5 c2+ Kd2 Ne2 Qc6 Ra5 Qa8 Na6 Nf3 g1B Na3 b1Q Ne5 b2 Nac4 Rh7 Nc6 Qg2 Qf1 Nf4 Qd3 Kg8 g7 Rb5 Qh3 Qe7 d8Q Ng6 d7 f1Q+ Kc3 Ba7 Rg1 Qg3+ Kd2 Qh4 Rg5 Qh1 Rf5 Rb6 Ra5 Qf7 Ra4 Qbg1 Re1 b1R Re5 Qe6 Rea5 R1b5 Qe7 Qa1 d8R Bd7 Rb8 Be8 Qd8 Bd6 Rb7 Qae5 Qc3 Bc7 Qh3 Kf7 g8R Qeg3 Rf8+ Kg7 Rf7+ Kh8 Rg7 Ne5 Rg5 Ng6 Nd6 Qeb3 Nc4 Qd5+ Kc1 Qgg2 Qf5 Qf7 Qf3 Qg7 Qh3 Qh1+
Qn3nNB/1rNr1q1n/N1n2bB1/NP6/3B2P1/kq1p1bK1/1b4Qb/2b5 w - - 0 1 legal: proof: e4 h5 g4 f5 b4 c5 d4 cxd4 f4 h4 a4 b5 Ra3 g6 Rg3 hxg3 axb5 fxe4 h4 g5 f5 Nh6 Rh2 Ng8 Rf2 Rh7 Rf3 Rh8 Rf4 gxf4 c4 e5 c5 Ke7 h5 d5 h6 a5 h7 g2 Kf2 d3 b6 a4 c6 Kd6 b7 f3 f6 d2 c7 a3 f7 a2 b5 Kc5 Qc2+ Kb4 Qd3 a1B Nh3 g1B+ Kg3 d1Q Bg5 d4 Nd2 e3 Nf2 e4 Qc2 e2 Qc4+ Ka3 Kh3 e1N Bf6 e3 Bh4 d3 Qc1+ Bb2 Bg3 e2 Bh2 Nf6 Nde4 Ng2 Qe3 e1B Qf4 Bd2 Nc5 Bg7 f8Q Bdc1 Nfe4 f2 Qd2 Qe7 Ne6 Nh4 Bg2 f1N Be5 Ng6 Nd6 Ng3 Bd4 Ra7 Be4 Qb3 Qg2 Qf7 Qg8 Bd7 c8N Nf8 Ne7 Ne2 Nc7 Bc6 Bg6 Bf3 Kh4 Na6 b8N Rb7 Bf2 Nd4 Kg3 Nc6 Bd4 Qe8 Qd5 Qf7 Qe4 Rg8 h8B N6h7 Qd5 Bf6 Nc4+ Kb4 Qe4 Rg7 Ng8 Ka4 Na5 Ka3 Nd7 Nab8 Nc5 Qfd5 Qe8 Rd7 N5a6 Qf7 Nc5 Na6 Qa8 Nab8 N5a6 Bh2+
K5n1/bn3R2/b2q1Q1r/5QNN/q1nR1q1p/2PPq1n1/1R1Nr3/N3r1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 b6 exf4 b5 Qf6 Rh3 Qe7 Rh1 Qd8 e3 d5 Ba3 d4 c3 d3 Bb4 cxb4 Be2 Bb7 Bg4 Ba6 Be6 Bb7 Bb3 Bc8 Bc2 dxc2 Kf2 h3 Kf3 Ke7 Ke4 Kf6 g4 Kg5 d3 Kh4 g5 Kg3 g6 Kg2 g7 c1Q b7 a5 b6 f5+ Ke5 h5 e4 b3 Nd2 f3 Ne2 f2 Rf1 f4 Rb1 h4 Nd4 b2 Nc2 h2 Qh5 h1N Nb3 a4 Ncd4 f3 Ne6 Ne7 g8N a3 Nf6 Nd7+ Kd6 a2 b8R a1Q b7 Qe3 e5 Ng8+ Kc6 Nc5 Ne4 Ra2 Qh6 Bd6 N6g5 Ng3 e6 Rh7 Qg6 Rh6 e7 Bc7 e8Q Bb6 Qd7 Ba7 Qh7 Qdd4 Kc7 Qa4 Ra8 Kh2 b8N Ba6 Nd7 Nb7 Ndf6 Kg2 Rc8 Qb4 Rf8 Qd6+ Kc8 Kh2 Nh5 Kg2 Rf4 Kh2 Rbc1 b1N Rc2 Nd2 Qgg7 Qd1 Na1 Nc4 Rf7 Rb2 Qf6 Kg2 Re2 Qa4 Qhf5 Ra2 Rb2 Kh2 Rb5 Re2 Nd2 Kg2 Rd5 Kh2 Rb1 f1Q Rbb5 f2 Rd4 Kg1 Rb3 Qg2 Rb2 f1R Nh7 Rfe1 Ng5 Qda3 Kc7 Qgf3 Kc8 Bb6 Kb8 Qff4+ Ka8 Qad6 Q6e5 Bc5 Qef6 Ba7
3R1bb1/2Kp1rrk/N2Q1Q1r/2N2P1q/1n3N2/P2qR3/nNp4n/2b1q1R1 w - - 0 1 legal: proof: c4 a5 e4 f5 h4 g5 b4 gxh4 d4 Ra6 b5 Ra8 Bd2 c6 Bb4 axb4 exf5 Ra5 c5 Ra8 d5 Qa5 Bd3 Qd8 Be4 cxd5 c6 d4 c7 Kf7 Bd5+ Ke8 Bc6 bxc6 Ke2 Kf7 Kd3 Kg7 Ke4 h5 Ke5 d3 f4 c5 g4 b3 b6 d2 a3 b2 g5 c4 g6 c3 b7 c2 Qf3 d1Q Qd5 h3 Qd3 h2 Kd5 e5 Nh3 h4 Nf2 h3 Nc3 b1N Ng4 e4 Qd4+ Nf6+ Ke5 e3 Ne2 Rh7 Qb2 Na6 b8N Qd3 Nf2 Nb4 Re1 h1Q Ne4 h2 Nc5 Nc3 Nba6 Bb7 c8N Qa5 Nd6 Nca2 Nc4 Bd5 Rab1 Kh6 g7 Bg8 Rg1 Qf3 Rbe1 h1R Qa1 Qh5 Nb2 Ne4 Qd1 Ng5 f6 Rh4 f7 Nf3+ Kf6 Rh1 f5 Nh2 Nf4 e2 Ke5 Rb8 Qd2 Rb6 Qc3 Rg6 Qd4 Rg5 Qd6+ Rg6 Rg3 Rf6 Reg1 e1B Re3 Rg6 Qf6 Bd2 Qd6 Bc1 Qf6 Be7 Qd6 Rf6 f8Q Rg6 Qff6 Bf8 Rgg3 Bc4 g8R Rf7 Rg1 Kh7 Rf1 Rgg7 Rg1 Be7 Rd8 Bf8 Rh3 Nd5 Re3 Qe1 Qde7 Bb3 Kd6 Ndb4+ Kc7 Rg6 Rg2 Rh6 Qed6 Rg1 Rge2 Rgg7 Rg2 Re7 Rg6 Bg8 Rg1 Ref7
Q3n2k/1K6/7r/Q1Qb1rrP/n4R1N/1p1pbqN1/P1br1r2/1NN1Rq2 w - - 0 1 legal: proof: g4 c5 e4 h5 b4 a5 d4 cxd4 f4 axb4 e5 g5 f5 f6 Bh3 Ra3 Bf4 Ra8 exf6 gxf4 g5 Ra5 Bg4 hxg4 Nc3 Ra7 Nb1 Ra8 Kd2 Kf7 Kd3 b5 Ke4 e5 Kd5 e4 h4 e3 c4 g3 h5 f3 c5 d3 c6 g2 c7 d2 Qe1 d1R+ Nd2 e2 Qg3 e1R Rh3 b3 Rh2 f2 Nh3 f1Q Rc1 g1R Qd3 b4 Qa6 b2 Qb7 b1B Qa7 b3 Nf2 Na6 Nd3 Bc2 Rh4 Bh6 Nb1 Re6 Rf4 Rd2 Re1 Nc5 Qa5 Na4 g6+ Kf8 f7 Kg7 f8N Qf6 Nh7 Rc6 Ng5 Bb7 Ne4 Rg5 Ng3 Rf8 c8Q Rh7 Qcc7 Kh8 Qc8 Rf2 Nc1 d6 Qca8 Rd7 Qc5 Qc3 Qaa5 Qf3+ Ree4 Rg4 f6 Rdd8 f7 Nf6+ Kd4 d5 Re1 Ne8 g7+ Kh7 g8N Rg5 Ne7 Kh8 Nef5 Rd7 Ke5 d4 Qab4 d3 Qba5 Re7+ Kd4 Ree6 Nh4 Ree2 Kc4 Rd2 Kb5 Rfg8 f8Q Rf5 Rb4 Be3 Rf4 Ng7 Qb8 Ne8 Qba8 Rgg5 Q5d8 Rc8 Qda5 Bd5 Ka6 Rc6+ Kb7 Rh6+
B2b1r2/1Q3pNq/n6r/N4p1Q/k1n1Q1P1/2PK4/1B1QrN1r/nqr2b2 w - - 0 1 legal: proof: f4 h5 g4 c5 b4 e6 d4 cxd4 a4 b5 f5 exf5 Ra3 h4 Rg3 hxg3 axb5 g5 h4 Rh6 Rh2 Rh7 Rf2 Rh8 Rf4 gxf4 Kd2 d5 e4 Kd7 b6 Kc6 h5 a5 h6 d3 c3 Kb5 h7 g2 b7 f3 e5 f2 e6 a4 e7 d4 e8N a3 Qf3 a2 Na3+ Ka4 b5 a1N b6 Qh4 Ne2 g1R Bh3 f1R Qh1 Rg2 Nc4 Ne7 Ng7 Rff2 Na5 Nec6 Bb2 Rh2 Ne6 Be7 Bf1 Ne5 Ng7 Ra6 Bh3 Bd8 Bg2 Rf8 h8Q Bd7 Qh7 Bb5 Qg6 Qh8 Qh5 Qh7 Qe1 Bc4 Bf3 Rfg2 Qf2 Bb5 Ng3 Bc4 Ne4 Bb5 Kc1 d2+ Kb1 d3 Qe3 Re2 Nf2 d1R+ Qc1 d2 Bc6 Nb3 Kc2 Ree1 Qb1 Re4 Bd5 Rde1 Qd1 Bf1 Qe2 Nbc6 b8Q Nc4 Qe5 Na1+ Kd3 Nb8 b7 Rh6 Qf4 d1Q+ Qd2 Na6 b8Q Re7 Ba8 Re5 Qb7 Qb1+ Kd4 Rc1 Qef3 Re2 Qfe4 Qa2 Kd3 Qb1+
3QK1R1/R1n2r2/Q1pb1qP1/4n3/1N1N1br1/Q3R3/2PQrp1q/qb4kq w - - 0 1 legal: proof: g4 g5 a4 h5 b3 b5 axb5 d6 Bg2 d5 Bf3 d4 e3 dxe3 Qe2 exf2+ Kd1 Qd6 Ba3 Qd8 Bd6 Nh6 Bf4 Ng8 Kc1 gxf4 g5 Qd4 Qf1 Qd8 Bg4 hxg4 Qd1 f3 Kb2 Kd7 Kc3 Ke6 Kb4 Kf5 Kc5 Ke4 d4 Ke3 h4 f1Q d5 Kf2 h5 a5 h6 f5 b4 e5+ d6 a4 b6 g3 b5 e4 b7 a3 h7 c6 g6 a2 b6 e3 Rh6 e2 Qc1 e1B Qg5 g2 Rh4 f4 Qf6 Ra4 Qc3 Ne7 d7 Bd2 Kd6 Nd5+ Ke6 Nc7+ Kf7 Bd6 Ne2 g1Q Rh3 Re8 h8R Qh2 Qa3 Qfh1 Nd4 Re2 Rg8 Kg1 Nc3+ Bc1 Nd5 f2 Re3 f1R Nb4 f3 Rf8 Qg5 d8Q Nd7 b8Q Rff2 b7 Ne5+ Kg8 Qf6 Qa8 Bf5 b8Q Bg4 Qa6 Be6+ Rf7 Bc4 Qbc8 Bd5 Qcd7 Bb3 Rb1 a1Q Rb2 Ba2 Rb1 Qb2 Ra1 Bb1 Rf8 Rg2 Ra2 f2 Ra1 Rg4 Ra2 Qg5 Kg7 Qa1 Rg8 Nf3 Kf7 Qge5 Qb6 Ra7 Qba6 Qg5 Re6 Bcf4 Re3 Nd5 Ke8 Qf6 Qf5 Rh7 Qfd3 Ne5 Qd2 Rf7 Qac1+ Re1 Qab6 Qhh8 Ra7 Q8h2 Qa3 Re2 Qba6 Nc7+
8/Q5q1/npnq3P/3b1Q2/2B1Q1bb/Bpqq3r/rRB3Pk/1Kn1B1R1 w - - 0 1 illegal: No proof kernel
QrNq1bR1/1nPb2RN/qr2k3/Q4N2/1r1b2n1/1Rr2q2/Pp3pN1/7K w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 axb4 d4 c5 Bf4 g5 Bh3 gxf4 g5 cxd4 Bg4 hxg4 Kf2 Ke7 Kg2 b5 e4 d5 c4 f5 h4 b3 h5 g3 e6 d3 g6 d2 c5 b2 h6 d4 g7 b4 e5 b3 h7 d3 c6 Ra6 c7 Nf6 g8Q Bd7 Nc3 b1R Nf3 Rb6 Rg1 Nc6 Qe1 d1Q Ne2 d2 Nh4 f3+ Kh1 f2 Nf4 Qf3+ Nfg2 d1R Qa5 Rbc1 Rb1 f1Q Rb2 f4 Rb1 Rc3 Nf5+ Ke8 e7 Ng4 Qgd5 Rd4 Qe4 Kf7 e8N Ra4 Ned6+ Ke6 Nc8 Qa6 Rb2 Rg8 h8R Rab4 Rh7 Ra4 Rg7 Rab4 Qa4 Na5 Qa8 Nb7 Rbb1 Kd5 e6 Ke5 e7 Ke6 e8N b2 Nf6 Rh8+ Nh7 Rg8 Qa5 Rh8 Rgd1 Rg8 Kg1 Rh8 Rd3 Rg8 Ngh4 g2 Rf1 Nf6 Qc5 Qh5 Rd5 f3 Rfd1 Qde8 Nce7 Ra3 Rg5 Bh6 R5d3 Rf8 Kh2 g1B+ Kh1 Bd4 Rdg1 f2 Qa5 Qf3+ R1g2 Qc8 Rg8 Rd8 Rc3 Bf8 Rd3 Qg4 Rgg3 Qf3+ Ng2 Re8 R3g7 Ng4 Rd2 Re3 Rd3 Qb8 Ra3 Rc3 Rb3 Qd8 Nc8 Qg5 Ncd6 Rb8 Nc8 Qd8
Q1Rnk2r/p3NpPK/2bqN2n/qQ2b2R/4P1RN/5bn1/1N1r4/r1b5 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 e4 f1Q b4 d5 h4 g3 c4 g2 g6 d3 h5 d4 h6 f3 b6 f2 b7 Na6 b8Q Qd7 c5 Qf5 b5 Kd7 g7 Kd8 h7 Nf6 b6 Be7 b7 Bd6 c6 Ng4 c7+ Ke8 Nh3 g1B Nf4 Qa5+ Nc3 Nb4 Rh5 Nh6 Qe2 Be5 Ne6 Nc6 Rc1 Qg2 Rb1 Bgh2 Rg1 Qg6 Rg4 Nd8 Qf1 Bd7 c8N Bhg3 Ne7 Bc6 Qb1 Qf6 Qb5 Qg6 Qc8 Bh2 b8R f1N+ Kd1 d2 Ke2 d1R Kf3 d3 Na4 d2 Nb2 Ng3 Ke3 Bd4+ Kf4 Ra1 Qcb7 d1B Rc8 Bf3 Qb8 Rf8 h8N Bb6 Qb7 Rb8 Qa8 Be3+ Ke5 Rb7 Kd6 Qf6 Nhg6 Bc1 Nh4 Qg6 Ke5 Rh8 Kd6 Rd7+ Ke5 Qh7 Kf6 Rd2 Kg5 Qg6+ Kf4 Nhf5 Nf8 Qd6+ Kg5 Nf1 Ne6 Be5 Rh6 Nd4 Rh7 Ng3 Rh5 Rg8 Kh6 Ndf5+ Kh7 Nh6 Qd5 Rf8 Qb5 Rh8+
RB1nB2B/6RB/1Pn1b2n/R6p/5p1Q/rnbQ2P1/k1br2b1/1n1q2K1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 f5 b5 axb5 h4 g3 h3 f6 exf6 Nd2 f5 Ra5 f4 Ra6 Qb6 Ra1 Qd8 Ndf3 g6 Nh4 Qg5 Ng2 hxg2 h4 Rh6 h5 Ba6 Nh3 Rh8 h6 Qd8 Ng5 Bb7 Ne6 Bc8 Ng7+ Ke7 Nh5 gxh5 Ra3 Ke8 Ra2 Be7 Ra1 Bf8 Kf2 Ke7 b4 Kd6 e4 g1N c4 f5 b6 a5 b5 Kc5 e5 Kb4 b7 d5 c5 d3 c6 a4 b6 d4 h7 a3 e6 d2 c7 a2 e7 f3 e8Q f4 Qd7 d3 Qe1 Kb3 Bg2 d1N+ Kf1 d2 Qd6 f2 Rh2 Nf3 Bh3 Ra3 Qd4 Bb4 Qd3+ Bc3 Qee2 Be6 c8B Nd4 Bb2 Ndc6 Bd7 Nh6 Qg4 Re8 Rc1 a1N h8R Ka2 Qh4 Nb3 Bf5 Rg8 Kg2 f1B+ Kg1 Bg2 Be8 Rg7 Rh1 Rd7 Bh7 Rd5 Rf8 Qd6 Rg8 Nd8 Rg7 Nbc6 b8B Bb4 Rg4 Nc3 Rg7 Nb1 Rc5 d1B Ra5 Bc2 Rh2 Bc3 Ra8 Be4 Re2 Bg2 Re5 Rd4 Rea5 Qd7 Qa6 Rd2 Qd3 Qd5 Rg5 Bb4 Bh8 Bc3 Rg4 Qf3 Rg7 Qd1+
1Kn5/1P6/1b1r2Q1/5bNp/2Pr1R1n/1p1NN1RQ/bb5b/qk1bQQq1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 c5 d4 cxd4 h3 g5 h4 gxh4 a4 Qb6 b5 Qd8 b6 Ra6 Ba3 Bg7 Bb4 axb4 a5 Ra7 a6 Ra8 a7 Bf8 Ba6 bxa6 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 g4 h5 c4 d5 f4 d3 b7 d2 g5 Kd3 f6 d4 g6 h3 g7 a5 f7 e5+ Kb5 h2 f5 e4 f6 a4 Na3 e3 Ne2 Nc6 Ka6 Rh6 Qc1 d1B Ra2 Bd6 f8Q Bf5 f7 Qf6 Rf1 h1Q Qe8 Rd8 a8N Nce7 Ka7 Qg1 f8Q Bb3 Qg6 Nc8+ Ka6 Nge7 g8Q Bh2+ Nb6 Qh8 Qc6 Ng6 Qcc5 Nh4 Rf4 Rhd6 Nc2 a3 Nc3 e2 Ne3 e1B Qg6 Bf2 Ne4 Qe5 Re2 a2 Ng5 a1B Qe1 Bb2 Qd5 Qg7 Qg2 Ba2 Qh3 b3 Rd2+ Kc3 Qff7 d3 Qff6+ Rd4 Nd7 Qh8 Ne5 R8d7 Re2+ d2 Nd3 Rd8 Ng2 Kc2 Re3 d1B Rg3 Kb1 Ne3 Ne7 Ka7 Nc8+ Kb8 R4d6 Ng2 Bb6 Ne3 R8d7 Qe6 Qc3 Qef1 Rd4 Qe5 R7d6 Qee6 Ba3 Qe5 Qa1 Qa5 Bc1 Qae1 Bb2
4K3/2r2r1b/N2pQ1p1/n2bPNBB/N2r2rQ/rr4P1/krBb4/3n1B2 w - - 0 1 legal: proof: d4 c5 h4 cxd4 b4 a5 h5 axb4 h6 g6 Bb2 Qb6 Ba3 Qf6 Bc1 Qg7 hxg7 Ra5 Rh4 Ra4 Rh1 Ra8 e4 d3 Rh5 e6 Rd5 exd5 a4 f5 e5 Be7 Ra3 Bf8 Rc3 Nf6 Rc4 Ng8 Rg4 d4 Re4 fxe4 Kd2 Ke7 f4 Ke6 c4 b5 c5 Kd5 f5 Kc4 c6 h5 c7 e3+ Ke1 h4 g3 h3 a5 h2 a6 h1B a7 b3 f6 e2 Kf2 e1R f7 b2 Bh6 b4 Qh5 Kb3 Qd1+ Ka2 Bf4 d6 Bg5 d2 Bd8 b3 Nf3 d3 Bf6 Re4 Ne1 Nc6 Qg4 d1R Qe6 d2 Nf3 Rg4 Ke3 Nh6 g8B Rh7 Nh4 Bd5 Bg5 Rc1 Nf5 Na5 Kd3 Bcb7 c8B d1R+ Ke3 Be7 f8Q Rc7 Qd8 Rdd4 Bd7 Rf7 Nc3+ Ka1 Na4 b1R Bdb5 b2 Bbe2 Ka2 Bf3 Ba6 Bd1 Bac4 Bde2 Rb8 a8N Ra1 Bd1 b1R Bf3 Rcc8 Nc7 R1b2 Na6 Rc7 B3e2 Rh4 Bh5 Rhg4 Bf4 Bf8 Qh4 Be7 Qh2 Bg5 Qh4 Rf6 Bf7 Bb3 Be8 Rff7 Beb5 Rb6 Bbd3 Bbc4 Bc2 R6b3+ Kf2 Rad1 Be3 R1d3 Bc1 Bd2 Ke2 Bc3 Bg5 Bd2 Kf2 Rge4 Kg2 Ng4 Kh3 Ne3 N4c5 Nd1 Na4 Bf4 Kg4 Bc1+ Bf4 Ra3 Kg5 Rdb3 Be3 Bd2 Bf4 Rfd7 Kf6 Re7 Bg5 Rg4 Qf7 Red7 Kg7 Re7 Kf8 Red7 Qf6 Bg8 Qe6 Rf7+ Ke8 Bh7 Qh1 Bd5 Qh3 Rgf4 Qh4 Rg4
5B1n/1bBR1p1k/1Qr5/q3R1br/P1Rrb3/P1p2Q1n/BBpqK3/7q w - - 0 1 legal: proof: f4 h5 g4 a5 c4 g5 b3 gxf4 Nf3 e5 g5 a4 bxa4 e4 Na3 exf3 Nc2 d5 Ne3 dxc4 Ng4 hxg4 e4 b5 d4 c5 h4 g3 e5 f2+ Kd2 f3 h5 g2 g6 g1Q a3 c3+ Ke3 c2 g7 c4 h6 b4 d5 b3 d6 Ra6 h7 Nd7 e6 Rc6 e7 Qh2 Bg2 f1R Qe1 f2 Kd2 Ndf6 Ke3 Bb7 Bd2 Ng4+ Ke2 Qa5 Qb1 Rd1 Bh6 Rd4 Bd5 b2 Qd1 b1Q Be6 Qf4 Rh4 Qbc1 Qd3 Qh1 Qf3 Qfg5 Rd1 c3 Ba2 Qgd5 Bc1 Qg5 Bb2 f1B+ Ke1 Bg2+ Ke2 Nf2 Rg4 Nh6 g8Q Nf5 Qg6 Bh6 Re4 Nh4 Rf4 Rd5 Rc4 Nh3 Qgf6 Qc1 Qd4 Qg5 Qb6 Rd4 Rd3 Ng6 Rd2 Rg8 h8B Qgd5 Rd3 Bg5 Bg7 Rh8 Bf8 Rh5 Rd1 Nh8 Rd3 Kd7 Rd1 Ke6 d7 Qd6 d8B Qf4 e8R+ Kf5 Rd2 Kg6 Re5 Kh7 Bc7 Qfh2 Qf2 Be4 Rd1 Rd8 Rd7 Qf4 Qf3 Qfc1 Rde7 Rd4 Rd7 Qd2#
1Bq3bq/Q1NPb2r/KP1QB1NQ/npQ4p/5br1/5r2/1p1q3k/n2N4 w - - 0 1 illegal: No proof kernel
2Kn4/3b1r1p/2R1p1R1/1rRN1q1Q/2nP3q/b1N2n1p/N5P1/1rR1Q1rk w - - 0 1 legal: proof: c4 b5 h4 d5 a4 dxc4 axb5 g5 Rh2 gxh4 Rh3 e5 Rh1 e4 d3 e3 Bd2 Bf5 Bc3 Be6 Bd2 Bc8 Qc2 exd2+ Kd1 Ke7 e4 Bg7 e5 Kd7 Ke2 Bf8 Qd1 Ke8 e6 Bc5 e7 Kd7 Kf3 Bb4 Be2 Bd6 Ke3 Be5 Bg4+ Ke8 Ke2 Bg7 Bf5 Bf8 Be6 fxe6 Kf1 Kd7 Ke2 Kd6 Kf3 Ke5 Kg4 a5 e8N c5 b4 c3 f3 h3 b6 c4 b5 a4 b7 a3 b6 c2 Nf6 c1R Ra2 c3 Kg5 c2 Nc3 Rb1 Ra1 c1Q Na2 Ra5 Ne2 Nh6 Qe1 Nc6 b8R Bd7 b7 Ng4 Rc8 Qc2 b8R d1N Nec3+ Nde3 f4+ Kd4+ f5 Nc4 Rb6 Nge5 Rf1 Be8 Rb5 Qe7 Rc5 Nd8 R8c6 Rab5 Rf3 Qf2 Rg3 Nf3+ Kf4 Rg8 Rg6 Rg7 Nfd5 Qf7 f6 Qh4+ Rg4 Qg6 f7 Be7 f8Q Rf7+ Nf6 Qgh5 Qh6 Qd5 Qh5 Bf8 Qe2 Rg1 Rc1 Be7 Nb4 a2 Qe1 a1R Nba2 Rab1 Rc7 Qf2 R5c6 Ba3 Rg6 Nfe5+ Kg5 Qe4 Nfd5 Nf3+ Kh6 Qf5 Rc5 Rf8 Kg7 Qh4 Rc8 Rf7+ Kg8 Ne3 R8c6 Ke5 Nf6+ Kf4 d4 Rfb7 Kf8 Nc4 Qg3+ Ke3 Qe5+ Kf2 Qe4 Qfg5 Nfd5 Kg3 Qe1+ Kh2 Qe4 Kh1 Qe1 Bf7 Ndb4 Qf5 Nbd5 Bg8+ Ke8 Ra7 Rc7 Bf7+ Kd7 Be8+ Kc8 Rab7 R7c6 Ra7 Ne2 Rf7 Nec3 Bd7+
k1q3R1/2PQr1b1/pnR1R3/rnpq2n1/2br4/PRB2QK1/1B1B2p1/2r5 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 c5 bxc5 b6 c6 Nf6 c5 Be7 g3 Ng8 c7 Nf6 c6 Ba6 c8R Ng8 c7 Bf8 g4 h5 Bg2 g5 Bc6 dxc6 Na3 Bc5 Nc2 Bb4 Ne3 Bf8 Nh3 f3 Nf4 gxf4 g5 Bc4 Ng4 hxg4 Qb3 Bb5 Qd1 Ba6 Kf2 Kd7 e4 f5 d4 g3+ Kg1 b5 h4 c5 h5 Kc6 g6 Kb7 e5 f2+ Kg2 f1R d5 f3+ Kh3 g2 a3 f2 g7 b4 h6 f4 h7 b3 d6 b2 d7 b1N e6 f3 e7 Nh6 g8Q Bg7 e8R Nc3 Rb1+ Nb5 Re3 Re1 Qdb3 f1Q Qgf7 f2 Qfc4 Nf7 Qcd3 Ng5+ Kg3 Rg8 Qd2 Qd3 h8B f1R Rh6 Qd5 Bb2 Rh1 Re8 Re7 Qf3 Rc1 Rc6 Rf8 Bc3 Rf4 Rb3 Rd4 Rg8 Qe8 d8B Nd7 Qdd3 Qf8 Qdf5 Nb6 Qd7 Re6 Bf6 Re7 Bd2 Qe8 Qdf5 Qed7 Rce8 Qc8 Q5g4 Nc3 Be5 Bc4 Qd7 Nb5 Bf6 a6 Be5 Rb8 Bf6 Ka8 Be5 Rd3 Bec3 Rd4 Bb2 Rf7 Re1 Re7 Ree6 Bf6 Ba5 Nd6 Bac3 Rf4 Kf2 Na4 Bb4 Rb5 Rg6 Ra5 Bd2 Nb6 Kg3 Nb5 Rg8 Bd4 Be5 Rh4 Bd6 Bg7 Bde5 Rf4 Bec3 Rd4
n1QN2Q1/8/rrBK1P2/2r2pbb/1Pbk1b2/p3NBBQ/1nq4p/3rQ3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e6 b4 Na6 e4 Bd6 g4 Bc5 e5 Bf8 Ra3 Nb8 Rf3 Qb6 f6 Qd8 Rf5 exf5 e6 Qc7 e7 Qd8 Rh2 Ba6 Re2 Bc8 Re6 fxe6 Bc4 Kf7 Bd3 Qa5 Bf1 Qd8 Kd2 a5 Kd3 d5 c4 h5 c5 e5 e8B+ Ke6 b6 a4 g5 e4+ Kc2 Ke5 c6 d3+ Kc3 d4+ Kc4 e3 c7 d2 g6 e2 b7 e1B g7 h3 Qb3 d1B Na3 h2 Bh6 h1R Nh3 h4 Nf2 h3 Qc2 d3 Bc6 d2 Bd7 h2 Kb5 Nc6 b8Q Ba6+ Kb6 Nge7 Kc5 Bc4 g8Q Ra6 c8Q+ Qc7 Be8 Na5+ Bc6 Bh5 Bh3 d1R Qg2 Bd2 Nb5 a3 Qb3 Bg5 Qf1 Nd5+ Nd6 Nb6 Bg4 Na8 Bf3 Be7 Qh3 Rhe1 Qb1 Re8 Bf8 Bd8 Nb7 Re6 Bg7 Red6 Bh6 Be7 Nd8 Bf8 Qb3 Bf4 Bg5 Bh6 Bh4 Bhg5 Qc3+ R1d4 Qb5 Be6 Bg3 Re2 Qbc4 Re3 Qe1 Rd1 Qb3 Nc4 Qa2 R1d3 Nd1 Nb2 Qc4 Re4 Ne3 Bg8 Qf7 Rd1 Qf8 Be6 Qg8 Bb3 Kb5 Re6 Bb7 Kd4 Bd5 R4e5 Qg4 Qc2 Qh4 Kd3 Qh3 Bc4+ Kc5 Reb6 Ng4 Re3 Bc6 Re5+ Kd6 Kd4 Ne3 Rc5+
1NQ1N2N/3p2P1/n1b1R1n1/1pk1b1bb/2n2q1R/NPr3p1/1Q6/2bK1Qq1 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 g4 cxd4 f4 h5 a5 f5 Be2 fxe4 f5 a6 Bf4 gxf4 g5 Ra7 Qd2 Rb7 Qd1 Rb6 axb6 a5 Bg4 hxg4 c4 e5 h4 Ke7 b3 Kd6 h5 f3 f6 g3 f7 d3 h6 f2+ Kd2 f1N+ Kc1 d2+ Kc2 a4 b7 a3 g6 a2 h7 e3 g7 e4 Ne2 Be7 f8N Kc5 Rg1 Qc7 Nc1 e2 Rh1 e1B Ng6 e3 Rh4 e2 Na3 Na6 b8N Qf4 Rb1 a1B Na2 Bc3 Nb4 Be5 Nd5 Bg5 Nc7 Bb7 Ne8 Bc6 Qc1 Bf2 Qb2 Ne7 Re1 Rf8 h8Q Be3 Qh7 Rf5 Nh8 Ng6 Qg8 Rf6 Qf7 d1B+ Kb1 Nd2+ Kc1 Rd6 Qf5 Rd5 Qh3 Rd3 Qf1 Kb4 c5 Rc3+ Qc2 Be4 c6 Kc5 c7 Bc6 c8Q Nc4+ Kb1 Bc1 Qb2 Bc2+ Ka2 Be4 Ka1 Bf3 Kb1 Re3 Kc2 Bh5 Rd1 e1Q Rd6 Rf3 Re6 Qee3 Kd1 Qg1 Qc2 Re3+ Qe2 Rf3 Qb2 Rc3+
1qQ1bb1b/1n4N1/3k2N1/1rp2p2/1RR1Kb1R/1PQ3r1/3qpP1q/1N1qR3 w - - 0 1 legal: proof: e4 a5 b4 axb4 e5 b3 e6 b2 Nc3 dxe6 Nb1 e5 Ba6 e4 Bb5+ Nc6 Bf1 Nb8 Nh3 b5 Be2 b4 Ba6 b3 Bf1 Na6 Ke2 Nc5 Na3 b1Q Ng1 b2 Ke1 Nb3 cxb3 g6 h4 Bg7 d3 Qd7 h5 Bf8 Bg5 Qd8 Bh4 g5 g4 gxh4 g5 Qd7 g6 Nf6 g7 Qd4 Bh3 Ng8 Bf5 Qd8 Bg6 hxg6 Ke2 Kd7 Ke3 e5 d4 c5 d5 h3 d6 g5 h6 g4 h7 h2 Ne2 g3 Nf4 g2 Qc2 Nh6 g8R Ra5 Qc1 Rb5 Ng6 Nf5+ Ke2 e3 Kf3 e2 Qc2 e1B Rg1 h1Q Qd2 e4+ Kf4 e3 Qb4 e2 Qc3 Qc2 Nb1 Qd2+ Ke4 Qh2 a4 Ke6 d7 Kd6 Rh1 g1B a5 Qc7 d8R+ Bd7 Rb8 Be8 a6 Qb6 Rg7 Rg8 h8Q Qa7 Rb7 Qb8 Rh7 Rg7 a7 Rg8 a8N Rg7 Nc7 Rg8 Na3 b1Q+ Kf3 Qbd1 Ne6 Rg7 Rh4 Rg8 Rc4 Rg7 Ngf4 Rg3+ Ke4 Qh6 Qhd4+ Kc6 Rd7 Rg6 Qf6 Bh2 Rb4 Qdd6 Qf3 Qc2+ Qd3 Bc3 Qd8 Bh8 Ng7 f6 Rag1 Qd1 Qc3 Q6d2 Nb1 Qh4 Rdd4 Nd6+ Kf3 Qh7 Re1 Nb7 Rdc4 Qh6 Qc8+ Kd6 Ke4 Bg3 Ng2 Bf4 Nh4 Rg3 Ng6 Qh3 Qf3 Qg2 Rh4 Qh2 Qc3 f5+
q2R1bR1/q2Qp3/5r1k/nQ1b2np/1R1BP1p1/B4BP1/2q2b1b/B4Kq1 w - - 1 2 legal: proof: e4 d5 b4 a5 h4 axb4 c4 dxc4 Nc3 b5 Bb2 f5 Nh3 g5 Ng1 f4 Bc1 g4 Nd5 Ra6 Ne3 fxe3 Rh2 Rg6 Rh1 Rg5 hxg5 Qd4 Qe2 Qd3 Qd1 Qd8 f4 Kf7 a4 Kg7 d4 c5 f5 h5 d5 e2 d6 b3 d7 c3 a5 c4 g6 b4 a6 b2 a7 b1Q a8Q c2 Bb2+ c3 f6+ Kh6 f7 c1Q g7 c2 Ra6+ Nf6 g8R b3 Ra7 Nh7 Bd4 b2 Rb7 Nc6 Qa4 Qa2 Rh3 b1Q Rd3 Ng5 Rb4 Bb7 Qb5 Qda8 d8B Q2a7 Bc7 Na5 Bd6 Bd5 Kf2 e1B+ Ke2 Qcb2 g3 Bf2 Bg2 c1B+ Kf1 Bce3 Bf3 Q1c2 B6c5 Qbb1 Ba1 Rh7 Bcd4 Rg7 Bab2 Rg6 Ba3 Rf6 Ba1 Bb7 Rd6 Bd5 Rd8 Bg7 f8B Bb6 Nh3 Bg1 Bd4 Bh2 Ba1 Bf2 Ng1 Kh7 Bd4 Bh6 Bg7 Qa1 Bh8 Bf8 Qa4 Kh6 Qd7 Qac3 Qd3 Q3d2 Q3b5 Qdc3 Bd1 Qf3 Be2 Qh1 Bf3 Rg6 Bhe5 Rd6 Ba1 Rf6 Bed4 Qxg1#
1Qq5/qQ1p1B2/1BpR4/1q1q2nr/b2b1RQP/RpkP4/3RKb2/1b5r w - - 0 1 legal: proof: c4 b5 f4 e5 b4 exf4 Qa4 a5 Qb3 Nc6 Qd1 Na7 Na3 axb4 Nb1 b3 Nh3 b4 Ng1 Nb5 cxb5 Ra4 Nh3 Ra7 Ng1 Ra8 g4 g5 Nc3 f3 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Be7 Nf2 Bf8 Ng4 hxg4 h4 Ke7 e4 Kd6 a4 Kc5 b6 Kd4 a5 f5 b7 b2 b8R b1B g6 g3 a6 b3 g7 g2 e5 g1B e6 f2+ Ke2 c6 e7 Nf6 e8R Bc5 g8Q Ne4 a7 Rh5 Ra6 Ng5 Ra3 Ba6+ Rb5 Qc8 Qc2 f3+ Kd1 f4 Bc4 f1Q+ Re1 f2 Rb4 f3 Rh2 Qg2 Qf5 Bb5 Re6 Ba4 d3 Kc3 Bf4 Bd4 Qg4 Qh1 Bc7 f1Q+ Re1 f2 Bf7 Qh3 Ke2 Qd5 Bb6 Qb5 Qe8 Qg2 Qe5 Qgd5 Qb8 Bf6 Rf4 f1Q+ Kd1 Bfd4 Rd2 Qf2 Re6 Qe3 Ref6 Bf2 Rd6 Qc7 Qb7 Rf8 a8Q Qc8 Qbb8 Re8 Qab7 Re4 Rf5 Rf4 Rff6 Rf3 Rf5 Rh3 Rf4 Rh1+ Qg1 Qh3 Ke2 Qhf5 Qd1 Qa5 Qg1 Qa7 Qg2 Qb5 Qg4 Qfd5
R3b3/nn2rprR/P2bp1p1/6nn/1R2Bn1B/3BQ3/2K2QPr/1rB4k w - - 0 1 legal: proof: f4 c5 h4 a5 e4 g6 b4 cxb4 h5 e5 h6 exf4 e5 Qe7 e6 Qf6 Ne2 Qg7 Nd4 Kd8 e7+ Kc7 Ne6+ dxe6 hxg7 Kd7 Nc3 b3 Nd5 Ra6 Nb4 axb4 Qg4 Ra4 Qd1 Ra8 e8B+ Kd6 a4 Ke5 c4 b5 a5 h5 a6 f3 d3 f2+ Kd2 Kf4 c5 Kg3 c6 b2 d4 b1R d5 h4 c7 b3 d6 b2 d7 b4 d8B b3 Ra5 h3 Re5 h2 Bd7 Ra7 Qc2 Nc6 Qd1 Nh6 g8Q Nf5 Qh7 Bd6 Bb5 f1N+ Kd3 Rg8 Qhh5 Rg7 Rg1 h1R Be8 Bd7 c8R Rh2 Qhg4+ Kf2 Bc4 N1g3 Ra5 Nh5 Rc7 Rb7 Bb5 Na7 Rh1 Bc6 Rc8 Re7 Bc4 Bb5 Bc6 Ba4 B6d5 Be8 Qe4 Ra1 Bb6+ Bc5 Kc3 b1N+ Kb2 Nc3 Rg1 Nf6 Bf1 Rh4 Bg5 Ne2 Rh1 Nd6 Ra4 Nb7 Bc1 Nf4 Qdd4+ Kg3 Rb8 Bd6 Rb4 Rh8 Kc3 b2 Kc2 b1N Bd3 Nc3 Ra8 Rb1 Qe2 Nce4 Rh5 Nf2 B5e4 N2h3 Qf1 Kh2 Qff2 Kh1 Qde3 Rd7 Bd4 Re7 Rh4 N4d5 Be5 Rh5 Bg3 Nf4 Rg4 Rhh7 Rg5 Rh4 Rh5 Ng5 Rh7 Rh2 Bh4 N6h5
b1Q2Q2/8/nr2p2n/NP1qb1rp/k1p1RR1b/1pR2rP1/K3b3/Q2R1N2 w - - 0 1 legal: proof: e4 a5 h4 f5 c4 fxe4 b4 d5 b5 g5 Be2 gxh4 Bd3 e3 Be4 dxe4 Ba3 b6 c5 Ba6 cxb6 Bc8 Bb4 axb4 a4 Kd7 f4 h5 d4 c5 a5 c4 f5 h3 g3 h2 d5 e2 Kd2 e1R Kc1 e3 Kb2 e6 f6 e2 b7 Bd6 f7 Bf8 d6 Rf1 a6 e1B a7 Bc3+ Ka2 Be7 f8R Na6 b8Q Rf3 Nd2 Bb7 Ne2 Be5 Nd4 Nh6 Nc6 Bh4 Rf4 Rg8 Rc1 Rg5 Re1 h1B Ree4 Bg2 Rc2 Bf1 Na5 Be2 Rc3 Bc6 Nf1 Bd5 Qb6 Rb8 Qf2 Ba8 Qa1 Kc8 d7+ Kc7 Ra3 Rb6 Rc3 Qe8 d8R Qc6 Rd1 Qd5 Qc5+ Rc6 Qf8 Kb6 Nb7 Rd6 Nd8 Ka5 Nc6+ Ka4 Na5 Rb6 Qc8 Bc6 a8Q Bb7 Qab8 Bc6 Qd6 Ba8 Qdf8 b3+
Rrq3QN/PkP2b1q/2p5/K2qn2n/p3QQ2/N4Rb1/2ppR2r/Q3q3 w - - 0 1 illegal: No proof kernel
4QrkN/7b/1Qb1n1b1/1pQ1Q1nq/6p1/1P2pBqP/2K1pN1p/2BBr3 w - - 0 1 legal: proof: d4 e5 e4 c5 Nf3 cxd4 Ng1 f5 a4 fxe4 a5 b5 Ne2 Bc5 Ng1 Bb6 axb6 Kf8 Bg5 Kf7 Bc1 Ke8 Bc4 g5 Bf1 g4 h3 g3 Rh2 Ne7 Nc3 Bb7 Bg5 Ng6 Nf3 Ba6 Qc1 Nc6 Bd3 Nb4 Ke2 Na2 Qd2 Nh4 Rah1 Nb4 Ke1 Nc6 Bf1 Bc8 Ng1 Nb8 Nb1 Ng6 Qd1 Ne7 Bc1 Ng8 Kd2 gxh2 g4 h5 g5 Ba6 Ke1 Nf6 Nf3 Bc8 Rg1 Ng8 Rg4 hxg4 Ng1 Qe7 Bd3 Qf6 Bf1 Qd8 Kd2 Kf7 c4 a5 f4 d5 b7 d3 f5 e3+ Kc3 d2 b3 a4 c5 e4 c6 d4+ Kb2 a3+ Kc2 a2 f6 a1Q c7 e2 Bb2 Bf5 c8B Qc7+ Nc3 Qg3 Qe1 Nh6 g6+ Kg8 g7 Nd7 b8Q Nf8 Nd1 Bg6 Nf3 Ne6 Nh4 Nf7 Bc1 Nfg5 Qb6 Rh6 Bd7 Rf8 Bc6 Qa7 Bd5 Qf7 Nf2 Bh7 Bg2 Qh5 Bf3 Bg6 Bb7 Bh7 Ng6 d1B+ Kd2 d3 Nh8 Bc2 Kc3 Qc7+ Kb2 Qe5+ Qc3 Qg3 Qe5 e3 Bbe4 d2 Kc3 Bb1 Bc2 Be4 Bd1 Bc6 Kb2 Bg6 f7+ Kh7 Bc2 d1B Kb1 Bf5 Kb2 Rf6 Kb1 Bg6 Kb2 Ra8 f8Q Ra1 Qfc5 Rf8 g8Q+ Kh6 Bd3 Bc2 Qf7 Bb1 Qe8 Kh7 Bc2 Kg8 Bd1 Bh7 Kc3 Bbg6 Ba3 Qhh4 Bc2 Re1 Bc1 Bb7 Bd1 Bc6 Kb2 Qh5 Kc3 Ne4+ Kc2 N4g5+
4KN1R/1Pq1R1pp/1pr3nn/3br3/2Q1prn1/2R2q2/1k1NPQ1p/1N2N3 w - - 0 1 illegal: No proof kernel
3nKn2/1q1p1QpR/1R3p1B/3BnQ2/1p1P2bp/k1bQ1R2/3qP2Q/n4r2 w - - 0 1 illegal: No proof kernel
k1q1b3/bnK4N/2p1p3/r2QPq2/1rP1Nn2/1n1p1b2/B1BQ1q1N/2BBr3 w - - 0 1 illegal: No possible last move
6q1/1nn2p1q/Q2QbRNN/1rp1Q1Rn/1bP2QKb/1n3P1p/1Rrn4/6k1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 h5 a5 Bb2 axb4 Bc3 Kd7 Be5 Ke8 g4 Bh6 Bh3 Ra3 Bg3 Nd7 Bh4 gxh4 g5 Bg7 g6 Nb8 Bf5 Bf8 g7 Ra8 Bg6 hxg6 Ke2 Kd7 c4 Kc6 d4 b5 a4 e5 f3 b3 d5+ Kc5 d6 e3 a5 e4 d7 b4 a6 g5 a7 g4 h6 b2 h7 h3 Qd3 b3 Ra2 g3 Ra4 g2 Ra6 Qh4 d8R Bb7 Qd7 Bd5 Qf5 Kd4 Qg4 Bb4 Ra3 Na6 Rf8 Nf6 g8Q Nh5 Nc3 b1N Na2 b2 Ra4 Nd2 Qf4 b1N Ra5 Nb3 Qgg3 N1d2 Rg8 c6 Rb5 Nc7 Rg5 Rhb8 Nc3 Rb7 Ra5 Rb5 Rh2 Rd8 Ke1 e2 Kf2 e1N a8Q Rdb8 Qa6 Nd3+ Ke2 Re8 Nd1 Ndc5 Nf2 Nb7 Ng4 c5 Kf2 Kd3 h8Q e3+ Ke1 e2 Kf2 Re3 Nh6 Re6 Qfd6 Qe4 Qgf4 Qh7 Qhe5 Re8 Ra1 Ra8 Qac6 Ra2 Qa6 Rc2 Ra4 Nf6 Kg3 Nh5+ Kh4 e1B+ Kg4 Bh4 Ne2 g1Q+ Rg2 Qh2 Ra2 Qg1 Rg3 Qg2 Rb2 Qg1 Nd4 Qg2 Ne6 Qg1 Nf8 Qg2 Qg7 Ke2 Qge5+ Kf2 Rg6 Kg1 Rf6 Qh8 Kf5 Qg8 Rg7 Qg3 Ng6 Qe1 Kg4 Qe4 Nf8 Qd3 Rg5 Qdh7 Ng6 Be6+
1QR2RnB/4B2r/4p3/Kp2p1Br/2b2b2/bQ1n2qQ/1P1qPbq1/1Br1k3 w - - 0 1 illegal: No proof kernel
Bb6/1qp5/br1kq3/NP1n1n1N/1P4NK/N3q3/bn1b2NR/1Nr1Bb2 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Qa4 f5 Qb3 f4 e4 h5 Qf3 gxf3 g4 Ke7 g5 Ke8 b4 Ba6 Ra3 Nh6 Re3 Ng8 Re2 Bc8 Rg2 Qd5 Rg3 Qd8 Rg4 hxg4 Kf2 Ke7 h4 f5 d4 a5 h5 c3 g6 a4 h6 g3+ Ke1 a3 e5 f2+ Ke2 f3+ Ke3 g2 Kf4 a2 Kg5 a1Q e6 f4 g7 c2 h7 Na6 d5 Kd6+ e7 Nc5 Bd3 f1B Bd2 c1Q Rh3 f2 Rg3 f3 Rg4 Ra6 Nh3 g1B Be4 Qe5+ Kh4 Rb6 Nf4 Bc4 Rg2 f1B Rh2 f2 Nh5 Qe6 Be1 Nh6 g8N Ba2 Ngf6 Ba6 Ng4 Qb8 Bh1 Rg8 h8N Qce3 Ng6 Nd3 Ngf4 Qb7 Ng2 Nb2 e8N+ Kd7 Nef6+ Kd6 Nd7 Bg7 Nde5 Rd8 Nc6 Bc3 Nd4 Bd2 Nc2 Rf8 Nca3 Rf4 Rh3 Rc4 Rh2 Rc1 Ngf4 Ng8 Bf3 Ne7 Ng2 Be2 Be4 f1N Bf3 Ng3 Be4 Kd7 d6 Bf1 Bf3 Nd5 Be4 Ke8 d7+ Ke7 d8N Kd6 Nc6 Bf2 Bf3 Nf5+ Kh3 Qf4 Nce5 Nf6 Ne3 Qbd5 Nac2 Rb7 N3g4 Ba7 Nc6 Qfe3 Na5 Bb8 Nca3 Qde4 Bh4 Rb6 Be1 Ne7 Kh4 Qa8 Bb7 Nfd5 Bc6 Qa7 Ba8 Qb7 Rh1 Q3h6 Rh3 Qhe3 Rh2 Nf5#
2bn3Q/n1q2Rb1/p2B1P2/BpbPR3/BB3r1K/3r4/2nBbkBb/1q6 w - - 0 1 illegal: No proof kernel
r2Q2b1/qR3Rpr/B1brnBp1/1Kn1B1B1/1P4kB/1n2p2q/3P3b/7B w - - 0 1 illegal: No proof kernel
1qRN4/1KP3Rr/P5pR/4q1R1/R1bnnR1q/p3b1Qp/4pN2/2r1kb2 w - - 0 1 illegal: No possible last move
4N3/1Pbq4/Np2p1NK/R3r2Q/3b1Nn1/N1n3R1/1NPnb1pp/2n3kr w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 b6 gxh4 b7 Na6 b8N Be6 Bd3 Bf5 Bf1 Bc8 g4 f5 b4 Qd7 g5 Qd6 b5 Qd4 b6 Qe5 b7 Bd7 Ba3 Qa5 Be2 Bc8 Bg4 fxg4 Bc5 Qb6 Be3 Qd6 Bd4 Qd8 Bb6 cxb6 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 d4 e3 f3 e2 d5 e1N g6 g3 d6 h3 d7 Kh4 g7 h5 Ne2 h2 Ra4 Kh3 Kg5 Kg2 f4 h4 f5 h3 f6 Nc5 f7 a5 Rf1 h1N Rh4 a4 Kg6 a3 Qd3 a2 Rf3 a1B Nc6 Ne4 Ne5 Nd2 Nf4+ Kg1 Rh5 g2 Rf5 Ng3 Qe2 Nd3 Nc4 Nh6 g8N Ra5 Nba3 Nge4 Nb2 Ng4 Nf6 Nc3 Rg3 Re5 Ne8 Nc1 Rh5 Qc7 d8N Qd7 Nc6 e6 Qf3 Bd6 f8N Bc7 Nb8 h2 Nh7 Rf8 Na6 Rff5 Rg5 Re1 Kh5 Rfe5 Nf8 Qb5 Qf2+ Kh1 Ne2 Nd1 Qf7 Rc5 Nf6 Bd7 Nd3 Bd4 Ne8 Nc3 Nef4 Bc6 Qf5 Bf3 Nb2 Be2 N8g6 Qd7 Qe5 Kg1 Qh8 Kf2 Rd5 Ra5 Kg5 Rh1 Qh5 Kg1 Rc5 Nf2 Kh6 Rb5 Rc4 Rc5 Ra4 Re5 Ra5 Ng4+
4N1R1/b3B2p/b2NnRqP/p3k3/1p1N1NbP/1np4n/n1N5/2b1Nr1K w - - 0 1 legal: proof: h4 d5 f4 a5 c4 dxc4 g3 Ra6 f5 Rh6 g4 Rh5 f6 exf6 gxh5 f5 Qc2 f4 Qa4+ Nc6 Qd1 Nb8 a4 Qd5 b4 Qg2 b5 Qh3 Qb3 Qd7 Qb4 axb4 a5 Qd8 b6 Qd4 a6 Nh6 a7 Ng8 Bg2 Qd8 Bc6+ Ke7 Be8 Be6 Bb5 Bc8 Ba6 bxa6 Ra5 Ke8 Ra1 a5 Kf1 Kd7 Kg2 Ke6 a8N g5 d4 f5 e4 c5 h6 f3+ Kh2 f4 b7 f2 d5+ Ke5 d6 f1B d7 c3 Nh3 g4 Ng1 f3 Ra4 c4 Bg5 c2 Nb6 c1B Nd5 f2 Ra3 Ne7 Rh3 Qb6 d8N Nbc6 b8N Nd4 Nb7 Qg6 Nd6 Ne6 Nf4 Nd5 Rf3 Nc3 Be7 Na2 Na3 c3 Nc2 Bfa6 Kg2 f1N Rhh3 g3 Kh1 Bb2 Rh2 Ba3 Rg2 Bc1 Bd8 Nd2 Nfh3 Nd4 Nb7 Qf6 Nc6+ Ke6 e5 Bc5 Rf1 Ba7 Nf3 Kd5 e6 N2b3 e7 Rf8 e8N Bf5 Nfe1 Ne6 N6d4 Ke5 Nbd6 Qg5 Rd2 Qg8 Be7 g2+ Kh2 g1N Rg2 Qf7 Rg8 Qg6 Kh1 Bg4 Rf4 Rf5 Rf2 Rh5 Rff8 Rf5 Rf6 Rf1 Nf4 Nh3+
rb1R1nN1/P1pp2p1/b3R1p1/1R1r4/3R1qPk/1nRn2N1/1R1p2Q1/3r3K w - - 0 1 legal: proof: d4 e5 c4 b5 e4 a5 Bd3 f6 b4 axb4 cxb5 Kf7 Bf4 exd4 e5 Ke7 e6 Ke8 Be5 fxe5 Bg6+ hxg6 Kf1 Ke7 f4 Kf6 g4 d3 Kg2 e4 a4 e3 h4 e2 f5 e1R a5 b3 a6 d2 b6 b2 e7 Nc6 e8R Rf1 h5 Kg5 h6 Nd4 h7 Nb5 b7 Nd6 b8R Nf7 f6 Re1 Rb5+ Bc5 Qe2 Nfh6 f7 Nf6 f8R Nf5 Ra3 Ba7 Re6 Bb8 a7 Rd1 Nc3 b1N Nd5 Nd4 Rc3 Nb3 Rf7 Re8 h8R Nh7 Rf4 Ba6 Rd4 Qf6 Ne7+ Qf5 Qf1 Na3 Ng8 Nc2 Ne2 Nf8 Ng3 Ne1+ Kg1 Qe5 Qg2 Re7 R1h3 Rf7 Kh1 Rf5 Rc2 Qf4 Rb2 Rd5 Nh6 Nh7 Rd8 Nf8 Ng8 Nd3+ Nf1 Ne1 Rc3 Kh4 Ng3 Nd3+
1n1R1N2/2q1k2p/p1R1p3/1Q1p1Rr1/P1qpPn2/1R2Rn1R/3br3/qK1N4 w - - 0 2 legal: proof: e4 f5 d4 g6 c4 f4 f3 b6 c5 bxc5 Be3 fxe3 f4 cxd4 g4 Na6 f5 Bg7 f6 Bf8 Bh3 Nb8 g5 Ba6 Bf5 Be2 h3 Bg4 hxg4 gxf5 a4 c5 b4 d5 f7+ Kd7 b5 e2 Kd2 e1Q+ Kc2 c4 g6 c3 g7 e6 b6 f4 g5 a6 b7 f3 g6 f2 Qe2 f1Q Rh3 Qff2 Nf3 Ne7 g8R Bh6 f8R Bd2 g7 Qff1 Rf5 Ng6 Ra3 Qc7 Rc8 Rg8 Nh4 Ne5 Ng6 Nf3 Nf8+ Ke7 Qb5 Qfc4 Rd8 Ra7 Rd6 Qg1 Rc6 Qh1 Nd7 Rf8 g8R Rf6 Rgg3 Rg6 Rb3 Rg5 Nf8 Ra8 Rg1 Rg2 Re1 Re2 Na3 Qf1 Kb1 Qg1 Nc2 Ra7 Ne3 c2+ Kb2 c1N Nd1 Nd3+ Ka1 Nf4 Kb1 Nd7 b8R Rb7 Rd8 Nb8 Rb2 Qf1 Qa5 Rb3 Qb5 Rbe3 Rb4 Rg2 Rb3 Rg5 Qa5 Re2 Qb5 Rf2 Ree3 Re2 Ka1 Qg1 Kb1 Rh5 Ka1 Qh2 Nb2 Qg1+ Ka2 Qgc1 Nd1 Qa3+ Kb1 Rg5 Rb4 Qac3 Rb3 Qa1+
n3rnb1/4p3/4n1RR/4N3/2bRN2K/1NPbRP1B/3pN2n/rk1b2q1 w - - 0 1 legal: proof: d4 a5 b4 b5 e4 f5 a4 fxe4 axb5 c5 b6 cxd4 b5 Nf6 Qd2 Ng8 Qc3 Nf6 Qb4 Ng8 f3 axb4 Bd2 g5 Be3 g4 Bf2 g3 h4 gxf2+ Kd1 Ra3 g4 Bb7 g5 Bh6 g6 Bg5 hxg5 Ra8 Na3 Ba6 Nb1 Bc8 Ke2 h5 c3 d5 b7 Kd7 g7 Kd6 g6 Kc5 b6 Kc4 Rh2 Kb3 Bh3 Kc2 Ra3 f1N Kf2 d3 Bf5 d2 Ne2 d1B Ra7 b3 Rh3 d4 Rh2 h4 Ng1 h3 Bd7 b2 Be6 e3+ Ke1+ e2 Kf2 e1N Nd2 b1B Ra6 d3 Rg2 h2 Bd7 h1B Ra4 Na6 b8N Nh2 Kg3 Nc7 b7 Nf6 g8N Nh7 g7 Nf8 Bh3 Be6 Nf6 Qd4 Re2 Bg8 Nfe4 Bg2 Nd7 Bf1 b8R Ng2 Ne5 Nf4 Re3 N4e6 Nb3 d2 Rb6 Bc4 Ne2 Qc5 Rab4 Ra1 Rc6 Na8 Ra4 Nec7 Rh6 Nce6 Kh4 Kb2 Rb4 Bbd3 Ra4 Kb1 Rb4 Bh7 g8R Qb6 Rgg6 Bg8 Ra4 B3c2 Rd3 Qg1 Re3 B2d3 Ra6 Rh7 Rd6 Rf7 Rd4 Rf5 Nf7 Rc5 Ne5 Rc8 N2g3 Rb8 Ne2 Re8
2R3n1/rNqRn3/nbrRr1b1/3Pr3/4q2P/r1B5/4B1kr/RK2BqB1 w - - 0 1 illegal: No possible last move, all moves rejected
1r1r2q1/R1QP2P1/qBBb1r1k/4rrq1/B3K3/1b3R2/1n3R1r/nB1R2q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 b6 exf4 c4 Qf6 Na3 Qd8 b5 Nh6 Nc2 Ng8 Nb4 d6 Nf3 cxb4 c5 d5 Ne5 Be6 Nc4 dxc4 Ba3 Bf5 Bc1 Bc8 Kf2 a5 Kf3 f5 g4 Kf7 e4 Kg6 d4 h5 e5 a4 c6 h3 b7 h2 d5 a3 b6 a2 e6 h4 d6 b3 g5 b2 c7 b1R e7 c3 Bd2 c2 Bc1 h3 Rg1 h1R Bc4 h2 Rg3 Nh6 e8B+ Nf7 Bd5 Nd7 b8R Nc5 b7 Rh5 Bd2 c1Q Rg4 Nb3 Ba5 Be6 d7 Bd6 Kg2 f3+ Kf2 f4 c8B Re1 Bd2 h1Q Ba5 Re5 Bc6 Rh2+ Rg2 Kg7 g6 Kh6 g7 Qc4 Be1 Qg5 Qc2 Rb2 Rd1 a1Q Bb5 Qa6 Ba5 Na1 Ba4 Qa2 Bc7 Rbb5 Bb6 Bb3 Rd2 Qhb1 Qc7 Qbg6 Kg1 Qgb1+ Rd1 f2+ Kf1 Re6 Rg3 Ne5 Rf3 Nd3 Bg6 Nb2 Bd3 Rf6 Ke2 f1R+ Rf2 Rg1 Kf3 Re1 Bh7 Ree5 Be4 Qc1 Bb1 Red5 Ke4 f3 Rd3 Qcg1 Rd1 Ra7 Ra8 Re5+ Kd4 Rff5 b8R Rb7 Ra7 Rf6 Rba8 Rb8 Bb7 Rd8 Bc6 Rff5 Bc5 Rbb8 Bb6 Qh1 Rfd2 f2 Rd3 f1R Rf3 Rd5+ Ke4 Qhg1 Rg3 Rf6 Rgd3 R1f5 Rf3 Rb7 Rc8 Rb8 Rf2 Rg8 Re8 Rb5 Re5 Rgd8 Red5 Rc5 R5d3 Rce5+ Kd4 Bc2 Rf3 Qf7 Rdd3 Bb3 Rd1 Ra5 Ke4 Qg8 Rg3 Rad5 Rgf3 Rde5+
2b1Nb2/Bk6/2bBnRBK/q1q5/2n2n1B/rN1r3P/1P1p1b2/bNN1n3 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 f5 Qc7 Qe2 Qd8 Qd2 h6 Qf4 gxf4 g5 h5 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 Ke2 d5 c4 Kd7 f6 Kc7 h3 a5 c5 e5 c6 f3+ Kf2 d3 Kg3 d2 g6 d1N f7 d4 g7 a4 Bg5 d3 Be3 d2 Bg2 f2 Ne2 f1B Bf4 e3 Nd4 e2 Rg1 e1N Ne2 a3 Nc1 a2 Rh1 a1B Bg5 e4 Kf4 e3 Be4 e2 Bg6 g3 Bh4 Nf6 Kg5 g2 g8N Nh5+ Ne7 Na6 b6+ Kb8 b7 Nf4 Rh2 Qa5+ Nf5 Nc5 Nd4 Ne3 Ndb3 Nc4 c7+ Ka7 b8B+ Kb7 Ba7 g1Q+ Rg2 Rh6 Rg3 Bg2 Rf3 Qe3 Rf1 Bc6 Rf2 Rh7 Rf3 Rg7 Kh6 Nce6 Rf2 Qec5 Rf1 Bd6 f8B Rd7 Rf3 Be7 Rf1 Rd3 Rf2 Nfg2 Rf5 Ngf4 Rf6 B8d7 c8N Bd6 Ne7 Bc8 Nd5 Be7 Nc7 Bd6 Bg7 Bf8 Ne8 Neg2 Bf2 e1B Bg3 Bf2 Bh4 Bd6 Bf8 Ne1 Bb8 Qab6 Be7 Ra3 Ba7 Qba5 Bf8 Bc7 Be7 Bd8 Bd6 Be7 Bc7 Bd6 Bcb8 Be7 Bd6 Bf8+
1n3q2/1K3pb1/2bR4/4R1n1/1NNRN1b1/qP1N1kB1/p2R1Pbr/1nbq4 w - - 0 1 legal: proof: d4 a5 e4 d5 a4 b5 Bc4 bxa4 Ba2 c5 Bc4 cxd4 Be2 d3 Bd2 d4 Bf1 Ra7 Be3 Rd7 Bc1 Rd5 exd5 Be6 h4 Bc8 h5 g6 Qg4 g5 Qh4 gxh4 g4 Kd7 g5 Bb7 g6 Qc7 g7 Bc8 Bg2 Ke8 Be4 Qd8 Bg6 hxg6 Kd2 Kd7 c4 Kd6 b3 Ke5 c5 Kf4 h6 e5 c6 g5 h7 h3 c7 a3 d6 a4 d7 a2 Nf3 a3 Re1 e4 Rf1 e3+ Kd1 d2 Kc2 d1N Kd3 g4 Kc4 g3 Kb5 d3 Kb6 g2 Nd4 g1Q Ne2+ Kf3 Nbc3 d2 Nd5 h2 Rb1 a1Q Nb4 h1B Rb2 Nf6 g8N Bb7 Nf4 e2 Re1 Nc3 Nfd3 d1B Bf4 Nfe4 Rd2 Ng5 Bg3 Bg2 Nf6 Bg7 Ne4 Qf8 d8R Nb1 c8N Bc6 Rd6 a2 Kc7 Qb2 Nb6 Qa3 Nc4 Qh1 Rg1 e1B Rd4 Rg8 h8R Qh5 Rh6 Rh8 Rhd6 Rh6 Rb2 Bd2 Re1 Bc1 Rd2 Qh1 Nc3 Rh4 Re5 Rh2 Ne4 Be2 Kb6 Qd1 Kc7 Bef1 Kb6 Bh3 Kc7 Bfg2 Kb6 Bg4 Kc7 Ba4 Kb7 Bc6+
N3r2N/bp1K3R/r1pq2P1/3R1nB1/b1k1Nq1p/4r3/5P1R/n2bbNR1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 Bd3 fxe4 Bb5+ Kf7 Bf1 Ke8 h4 Rh7 Be2 Rh8 g5 g6 Bg4 hxg4 h5 g3 h6 Qd6 Qf3 Qd8 Qh5 gxh5 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 c6 d4 b3 a4 h4 g6 b2 a5 e3 h7 e4 a6 e2 a7 e1R Nd2 b1B Ra2 e3 Ra5 e2 Ngf3 g2 Nf1 g1Q N3d2 Na6 Ra1 Qg3 Rh2 Bc2 Rb1 Nb4 Ne4+ Kd7 d6 Ke6 Kc5 Nh6 Be3 Ba4 Bg5 Nf5 d5+ Ke5 Rd1 Nc2 Ra1 Bh6 d7 Qf4 d6 Re8 h8N Qe7 Rd1 Na1 d8R Qe6 d7 Qd6+ Kb6 Ke6 Rb1 Kd5 Rd1+ Kc4 Rb1 Re5 Rf8 Re6 d8R Re8 Rf7 Be6 Rh7 Bd5 Neg3 Bf3 Rdd7 Re3 Ne4 Re8 a8N Rc1 Rb5 e1B Rd5 Bfd1 Rde7 Rcc3 Re6 Ra3 Ree5 Qb4+ Kc7 Bf8 Kd7 Bc5 Rd2 Ba7 Red5 Bab3 Rb2 Ra6 Rb1 Ba4 Rb3 Re2 Rg3 Re3 Rg1 Qbd6+
k2qB3/r1BK1nR1/1p1R1b1P/Rr1qp1r1/B5Q1/2B3qr/1P2rnRp/8 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 f5 a5 fxe4 a6 g5 Ne2 b6 Ng1 Bb7 axb7 Bh6 Bd2 Bg7 Bc1 Bf8 g4 h6 h4 Qc7 Nf3 Qc8 h5 Qc7 Nh4 Qd8 Nd2 Kf7 Ndf3 gxh4 g5 Ke8 g6 Bg7 Ng5 hxg5 Bh3 Bh6 Bf1 Bf8 Kd2 a5 c4 d5 f4 Kd7 f5 Kc7 c5 e5 g7 h3 c6 d3 Ke3 g4 f6 d2 f7 a4 Qf3 d1R Qf5 g3 Qg6 g2 Qg3 g1R Rh2 d4+ Ke2 a3 Qe1 d3+ Ke3 d2 Rh1 a2 Qf2 h2 Bd3 Rg5 Qg2 Na6 Qg4 Kb8 Bc2 Nh6 g8R Nc5 Rg7 Be7 f8R Nf7 Rg1 Bf6 Ba4 Ra7 Rg2 Nd3 Rfg8 Qc8 Rd8 Nf2 Rd6 Ra5 c7+ Ka7 b8B+ Ka8 Qh4 Rb5 Qg4 Qf8 c8B Re1+ Qe2 d1Q Bd2 Qb3+ Bc3 Qd5 Bc7 Qd8 Bd7 Qb8 Be8 Rh7 Rb1 a1R Rd1 Ra2 Ra1 Ra3 Bc2 Ra7 Ra5 Rh6 Ba4 Qc6 Kd2 e3+ Kc2 Qc4 Qg4 e2 Kd2 Qd5+ Ke3 Rhg6 h6 Rh5 Qd7 Rgg5 Qg4 Rh3+ Qf3 Ne4 Qg3 Rc1 Qf3 Rc2 Qg3 e1Q+ Kf3 Rgh5 Kg4 Re2 Qf4 Qf2 Qg5 Qg3+ Kf5 R5h4 Qg4 Nf2 Qd4 Rg4 Qb4 Qc6 Ke6 Qd5+ Kd7 Rg5 Qg4 Qd8#
4R3/1qQ1qPK1/1n4q1/2Nb2pQ/1k1n2qp/1b3Q2/1B2rPQQ/1rb2Q2 w - - 0 1 legal: proof: d4 a5 b4 c5 a4 cxd4 e4 f5 exf5 b6 b5 Nc6 Ra2 Nb8 Rb2 Ra7 Rb4 axb4 a5 Ra6 axb6 Ra8 h4 g6 h5 Bh6 Be2 Bf8 h6 Ra1 Bh5 gxh5 g4 Ra8 g5 Ba6 g6 Qc8 g7 Nc6 Na3 Qd8 Nc4 Bc8 Ne5 Nb8 Ng6 hxg6 Ke2 e5 Kf3 Ke7 Ke4 Kd6 c4 Kc5 b7 d5+ Kf3 e4+ Kf4 g5+ Ke5 h4 b6 b3 h7 b2 f6 b1Q f7 e3 Qd3 e2 Qh3 e1Q+ Qe3 Be6 Ne2 Qg6 Bb2 Qeb1 Ng3 Ne7 g8Q Nc8 Ne4+ Kb4 c5 d3 c6 d2 c7 d1B Re1 d4 Nc5 d3 Qf3 d2 Qg7 Rg8 h8Q Bdb3 Qhh5 d1Q Qgf6 Ra3 Qg2 Qg4 Qff3 Ra1 Re2 Qe7 Re3 Nd6 c8Q Nb5 Qc7 Nd4 Re4 Qh1 Qf1 Rb1 Qc6 Na6 b8Q Nc7 b7 Nd5 Qbc7 Nb6 b8Q Bed5+ Qe6 Qd7 Qec6 Be7 Q3g2 Re8 Qf6 Qhh3 Qf4 Qe3 Qfh2 Qdc6 Qa8 Qb7 Qf3 Qh7 Q3g2 Bd6+ Kf6 Bf4 Re6 Qee4 Re7 Bc1 Re5 Qhf5+ Kg7 Qd7 Qf3 Qd3 Re1 Re2 Q3g2 Qe7 Qf3 Rc2 Re3 Re2 Q3g2 Qd8 Re8 Qe7 Qf3 Qa7 Qac6 Qb7 Q3g2 Qc2 Qf6 Qd3 Qff3 Qg6+
1k2b1q1/1n1nb3/4Q1Bn/pP1R3Q/1PQ1Kp1q/1R1r1Q2/5Q2/1n1n1n1R w - - 0 1 legal: proof: e4 c5 a4 a5 g4 b5 axb5 d5 d3 d4 Be3 h6 Bc1 Ra6 Nh3 Rd6 Ng1 Rd5 exd5 c4 Bg2 cxd3 Bh3 Na6 Bf1 Nb8 f4 f6 f5 Qb6 g5 Qd8 g6 Kd7 Bg5 hxg5 Nf3 Ba6 Nc3 Bb7 Ne4 Bc8 Ne5+ fxe5 f6 Rh4 f7 Rh8 Nf6+ gxf6 Ra4 e4 Ra2 Qb6 Ra1 Qd8 Kd2 Kc7 b4 e5 h4 e3+ Ke1 e2 Kd2 e1Q+ Kc1 g4 c4 d2+ Kc2 d3+ Kc3 f5 g7 f4 c5 g3 c6 e4 Kd4 e3 h5 g2 h6 g1N h7 e2 Qb3 d1N Rb1 d2 Qd3 Nc3 Qf3 d1N Rb3 Nh6 g8Q Be7 f8Q Bd7 Qe6 Nb1 Ke4 Qh4 d6+ Kc8 c7 e1N Bd3 Ne2 Qff5 Qg8 Q5h5 Kb7 Qf2 Be8 Qhf3 Nd7 Bc2 Nd3 Qc4 Ka8 c8Q+ Nb8 d7 Ng3+ Kd4+ Ka7 d8R Nc5 Rd5 Nb7 Qe6 Nf1 Bg6 Nd7 Ke4+ Kb8 Qg1 Qf7 Qgf2 Rf8 h8Q Qg8 Qh7 Rf5 Qhf7 Rg5 Qff5 Rg3 Q5h5 Rh3 Q3e2 Rc3 Qef3 Rd3
3r2N1/1nnq3k/4p3/P2pP1K1/RqR3R1/1Q2Rn2/1Q2p1Qp/1r1R2br w - - 0 1 legal: proof: e4 a5 d4 f5 b4 axb4 a3 c5 dxc5 f4 Be3 fxe3 Bc4 Ra6 Bd5 Ra8 Ba2 b3 f4 bxa2 g4 g5 f5 b6 Nc3 Nf6 Nd5 Ba6 Nf4 gxf4 h3 Be2 g5 Bg4 hxg4 Ng8 Ke2 Kf7 Kf3 Kg7 c4 h5 a4 d5 g6 e2 g5 b5 e5 e6 c6 b4 c7 b3 c8Q h4 Kg4 b2 a5 b1Q c5 f3 c6 h3 c7 h2 Qb3 f2 Nf3 f1R Nd4 Qf6 Qcb7 Rh6 c8R+ Nd7 Nc6 Qd8 Ne7 Rh8 Rc4 Nc5 Qb8 Rc1 Rd1 Qd7 Qb2 Ra7 Q8b3 Nf6+ Kf4 Rb7 Ng8 Ne8 Kg4 Rh6 f6+ Kh8 f7 Nc7 g7+ Kh7 Kf4 Rb6 Kg4 Nb7 Kf4 Bb4 f8R Bc5 Kg4 Rg6 Rf3 Bg1 Re3 Rd6 Nh6 Rf6 g8R Rf1 Kh5 Qe4 Rg6 Rb1 Ng8 Qc2 Kh4 Qd2 Kg4 Qb4 Rg7+ Kh8 g6 Re1 Re7 Rf1 g7+ Kh7 Kh5 Qe8+ Kg5 Rd8 Rf7 Qd7 Rff4 Rc1 Rb1 a1N Rg4 Nc2 Ra1 Ne1 Ra4 Rb1 Rg2 Qc5 Kh5 Nc2 Ne7 Ne1 Kg4 Bf2 g8Q+ Kh6 Qg5+ Kh7 Ng8 Rh1 Kh5 Qcb5 Qg4 Qb4 Kg5 Bg1 Qf3 Rb8 Rgg4 Rd8 Qg2 Nf3+
b5r1/2q1PB2/1b2qKBr/B7/bq1k1BB1/1p5B/1Pn1p3/R1rnBQb1 w - - 0 1 illegal: No proof kernel
Rn1k4/R4K1p/P1Rbq3/p2b2q1/1p5r/nQqPqR1b/1B1R3Q/6R1 w - - 0 1 illegal: No possible last move, all moves rejected
2r4n/rQp2K1b/1pB3n1/7n/1QPk4/q1R3Q1/r1R1QP2/r2qbrRR w - - 0 1 illegal: No possible last move
n2b4/qp4p1/bkpN2rN/1Nn1QrN1/2Q3P1/2Qq4/P1Q3Kp/1R1q1q2 w - - 0 1 illegal: No proof kernel
8/p3Nk1B/qnp5/B3B1pq/pn2r1Pp/1b1B1B2/4q2P/NNrb2NK w - - 0 2 legal: proof: b4 c5 a4 b5 c3 bxa4 b5 Nf6 Qb3 Ng8 Qa3 Ba6 Qb4 Bc8 c4 cxb4 c5 e5 c6 Qh4 c7 Qd4 Ra2 Qh4 Rc2 Qd8 Rc6 dxc6 Kd1 Qd5 d4 Qa2 g4 Bf5 e4 Qd5 f4 Qd7 d5 Ke7 Kc2 Qc8 Ne2 Nh6 Bh3 Ng8 Rd1 Bd7 Rd4 exd4 e5 Ke8 e6 Qd8 Nd2 Bd6 Nb1 Be5 fxe5 Bc8 Kd1 f5 Ke1 g5 Kf2 h5 Kg2 f4 d6 b3 e7 d3 b6 f3+ Kh1 b2 b7 d2 d7+ Kf7 Bg2 d1B Ng1 f2 Bf3 f1Q Bd2 h4 Ba5 Na6 b8B Qe2 e8B+ Kg7 e6 Nf6 e7 Nd5 Bb6 Rf8 Bg6 Qe8 d8N Nab4 Bd3 Be6 c8N Qh5 Ba5 Nb6 e8B Beb3 Beg6 Rf5 Ne7 Rc5 Bc7 Rc1 Nb7 Re8 Be5+ Kf8 Bh7 Kf7 Nd2 b1Q Nc5 Qc2 Nb1 Qc3 Bde4 Qcc4 Bd3 Ba2 Nb3 Qa6 Na1 Bab3 Bhe4 Rd8 Bf5 Rd4 Bh7 Re4
2r1R3/kPpB1Rbq/2P1r3/3KN2r/B3n1Q1/1r1P1B1n/1n3r1b/4N1q1 w - - 0 1 legal: proof: b4 b5 e4 a5 a4 g5 f4 d6 h4 gxh4 e5 dxe5 bxa5 exf4 a6 b4 Bb2 Bd7 Be5 Bb5 axb5 f3 Bf6 Nxf6 b6 Ng8 Kf2 Kd7 Ke3 Kc8 Ke4 e5 g4 h5 c4 f5+ Ke3 b3 a7 Kb7 d3 e4 g5 f4+ Kd2 h3 Kc3 b2 g6 h4 g7 f2 c5 f3 Kc4 e3 Ra6 e2 Ra3 e1B Bg2 f1R Qd2 h2 Ne2 h3 Qd1 Qd7 Ra6 Nf6 g8B Ne4 Na3 b1R Ra4 f2 Bd5+ Nc6 Ng3 Rh5 Nc2 Rb3 Bf3 Qh7 Ne2 Rc8 Ned4 Bg7 Be6 Ne5+ Kd5 Nc4+ Bf5 Nb2 a8B+ Kb8 Bc6 Bc3 b7 Re1 Ra2 f1R Ba4 Rf2 c6 Ka7 Rf1 h1N Ra1 Re3 Ne1 h2 Rc1 Bb4 Rc2 Bd6 Re2 Ng5 B5g4 Ng3 Bd7 Re6 Re5 h1Q Qe2 Rg6 Re8 Re6 Qe4 Qh2 Qg4 N3e4 Nb5+ Ka6 Na3 Qg1 Nc4 Bh2 Ne5 Nh3 Bd1 Re2 Rf7 Rf2 Bf3 Ka7
2n1B3/2p1P2R/kpP1K2p/b7/1BrQ1N1P/b4nr1/3n2NB/3rRq1n w - - 0 1 legal: proof: g4 e5 e4 f5 b4 fxg4 d4 a5 dxe5 axb4 a3 bxa3 Qf3 d5 Qf5 dxe4 Qe6+ Ne7 Qxc8 Ng8 Ke2 g5 Ke3 b6 f4 a2 h4 g3 c4 g2 e6 h6 f5 g4 Kf4 g3 Ke5 e3 f6 e2 c5 e1B Rh3 Ne7 Bg5 Nbc6+ Ke4 Ra4+ Bc4 Rg8 Nd2 Na7 Ke5 Nf5 Nf1 Ba5 Ne2 g1R Re1 a1N Bf4 g2 Ne3 Nb3 Rf3 Nd2 Bh2 Ng3 Nf4 Nh1 f7+ Ke7 c6 Rg3 Bd3 Rc4 Bg6 Qd3 Qa6 Kd8 Kf6 Bc5 f8B Qf1 Be8 Ba3 Bb4 Nc8 Qb5 Nd6 e7+ Kc8 Qe5 Kb8 Ke6 Ka7 Qh8 Ka6 Qd4 Nc8 Rf2 Qe2 Rf3 Rf1 Rf2 g1N Rg2 Ngf3 Rg1 Rh3 Rg7 Rg3 Rh7 Qf2 Neg2 Qg1 Re3 Rd1 Re1 Qf1
1b3n2/1B4n1/QP1prN2/6Rn/1nPRBp2/r2K1P2/1p2p3/NB2kbn1 w - - 0 1 illegal: No possible last move
K1bB2q1/1b1rN3/1NP1P1Bb/k1n3q1/3qR2r/nQ1Pq3/2qRBqn1/8 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 gxh4 c4 e5 Qc2 exf4 axb5 cxb4 c5 d5 Qc4 dxc4 Kf2 Kd7 Kf3 Kc7 Ke4 h5 g4 a5 g5 f5+ Ke5 h3 e4 b3 g6 c3 c6 Kb6 g7 a4 Bd3 c2 Ra2 h4 Nf3 h2 Bf1 b2 Nc3 b1N Rg1 h1Q Bh3 a3 Nd4 f3 Rf1 f2 Nce2 f4 Ng3 f3 Ne6 Ka5 b6 Qg2 b7 Qg5+ Kd4 Ne7 g8B Nf5+ Kd5 Ne3+ Kd4 Bh6 e5 Na6 b8Q Ra7 Bh7 Nc5 Rd1 f1Q Nf4 f2 e6 Rd7+ Nd5 Qfg1 Bb2 c1Q Qb3 f1B Bg4 h3 Nf5 h2 Re1 h1Q Bg6 Q2f2 Be2 Qhf3 Ne7 Qd1 Bc1 Ng2+ Kc4 Qh3 Nb6 Qhe3 Bb2 Rh7 Bf6 Rh8 Rc2 a2 Rb2 a1Q Rc2 Ka6 Rb2 Na3+ Kb4+ Ka7 Ka5 Qc2 Ra2 Qad4 Rb2 Kb8 Ra2 Kc7 Rb2 Nb7+ Ka6 Nc5+ Ka7 Rh7 Ka8 Rh8 Bd1 Bfa6 d3 Rh7 Bgh5 Qg8 Bg6 Qg5 Bf3 Qfe3 Be2 Qgf2 Ra2 Qec1 Bf1 Bf8 Re4 Rh4 Nc4 Qc2d2 Be2 Bh6 Nf5 Qd2e3 Rd2 Qc2 Be7 Bb5 Ncd6 Kb6 Nc4+ Ka6 Nb6 Ka5 Bd8 Bba6 Ne7 Bab7+
b1Q1R1bK/2b5/1knR1n1r/1P2Bq1r/2nRbP2/2q2n1B/4PN1b/1N1n4 w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 a4 gxh4 g5 c5 g6 b5 axb5 c4 Qd3 cxd3 Rh3 fxg6 Rh2 g5 Rh1 g4 Kd2 h5 b4 d5 c4 Kd7 c5 Kc7 f3 a5 c6 h3 Na3 g3 Rb1 a4 Rb2 h4 Rb3 h2 Bb2 h3 Nb1 a3 Ba1 g2 Nc3 a2 Bb2 a1B Nd1 Ra6 Rc3 Be6 Bc1 Qd7 Rc4 Nf6 Ne3 Rh5 Rc2 Kb6 c7 Bg8 c8R Bd6 Ba3 Qf5 Nd1 Bc7 Re8 Nc6 Nc3 Bb2 Nb1 Ba1 Ke1 d2+ Kf2 d1Q Rc4 d3 Ke3 d2 Bb2 Qdc2 Be5 Qc1 Rd4 Qc3+ Kf2 d1N+ Kg3 Ne3 f4 Nc4+ Nf3 Qcc2 Nfd2 g1N Ne4 Nf3 Nf2 Qc3 Bg2 Bb2 Rhd1 h1B R1d2 h2 Bh3 Bg2 Rd1 h1B R1d3 Kb7 b6 Ba3 b5 Bc5 Re4 d4 Rd1 d3 Rd4 d2 Rd6 Bd8 Rd4 Ka8 b7+ Ka7 Rd6 Kb6 b8Q+ Ka5 Qc8 Kb6 Nd3 Bg1 Nf2 Ra7 Rd4 Rah7 Rd6 Bc7 Rd4 R7h6 Rd6 Qfc2 Rd4 Ne4+ Kg4 Bh2 Rd6 Rh4+ Kf5 Nf6+ Ne4 R6h5+ Kg6 Rh6+ Kg7 R4h5 Nf2 Qf5 Rc1 d1N Rc2 Ng5 Rcd2 B2d5 Rd3 Bhe4 Rd4 Nf3 Rd7 N6a5 Rdd8 Ba8 R8d7 Nh7 R7d6+ Nc6 Kh8 Nf6+
4N1Nr/K3rqbQ/2n4P/B4rr1/bb3Pq1/1Nk2qB1/1bP3R1/2b1R2n w - - 0 1 illegal: No possible last move
4r3/1bB1Q1bq/1Pk1n3/4n1K1/1qrbqN2/n3PrPb/R1B2N2/3r1RN1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 d5 Kf3 Kd7 Kg4 a5 b4 f5+ Kh5 a4 b6 c2 b5 a3 g3 d4 e3 f3 b7 a2 b6 d3 Rh2 d2 Bd3 f4 Bf1 f2 Na3 h3 Rg2 h2 Nf3 h1Q+ Nh4 f3 Be2 f1B Rb1 a1B Rb5 f2 Ra5 Bfg7 Rc5 Nc6 Nb1 Nf6+ Kg5 h5 Bb5 Nh7+ Kf5 Qf8+ Kg6 Ng5 Nc3 Ne6 Nf3 h4 Qe2 h3 Nd1 h2 Ba3 c1R Qd3+ Bad4 b8N+ Kd6 Qb1 Bb7 Nd7 Re8 Nf6 Ne5+ Kf5 Qe7 Bd3 Rhf8 Qb4 Rc3 Ra5+ Kc6 Rg1 Qg2 Ra4 h1Q Bc2 Qgh2 Ra8 Bg2 Ra7 f1N Nf2 d1R Ra6 Nd2 Rf1 Nb1 Ng1 Rc4 Ra8 Nc7 Kg5 Qh7 Ra4 Qd6 Nh5 Bh3 Ra8 Qc5 Ra4 Qb5 Qe7 Q1e4 Bd6 Rf3 Nf4 Qb4 Ra1 Na3 Ra2 Na6 Bb8 Nc5 Bc7 Ne6+
KB3bnN/b6P/rQqBrn2/6N1/1N1P2k1/R2r1b2/1nbP1qq1/1R4n1 w - - 0 1 legal: proof: e4 a5 g4 f5 b4 axb4 c3 fxe4 g5 d5 g6 d4 cxd4 hxg6 Qg4 g5 Qd1 g4 Ke2 Kd7 Ke3 Ke6 a4 Kf5 h4 b5 f4 e5 a5 c5 a6 g5 a7 c4 h5 g3 h6 b3 h7 b2 Rh3 b4 Be2 g4 Bd3 b3 Nc3 b1R Nb5 c3 Bb2 c2 Qc1 g2 Rh4 g3 Ra2 Qf6 Qf1 c1Q Qe1 Nd7 Bc4 Bb7 Ra3 Qc3+ Bd3 Ra1 Rh6 Kg4 Nh3 g1N f5 g2 Ng5 Ra2 Bc1 b2 Rh1 b1B Nd6 Bc2 Ndf7 Re8 a8N Re6 Qf1 Qg7 Qe1 Ndf6 Nc7 Rb2 Na6 Rb3 Bb2 Bd5 Nb4 Ra6 Qb1 Bc6 Kf2 e3+ Ke1 e2 Kf2 e1N Be4 Bb7 Bc6 Nd3+ Ke3 e4 Bc1 Ne8 f6 Qg6 Ra4 Qf5 Ba3 Nb2+ Nd3 Qg6 Bd6 Ba8 Ra3 Qg7 Nd8 Qb7 f7 Nef6 Ba4 Qd5 Bb8 Qf5 Bc6 Qg6 Kf2 Qg7 Nb4 e3+ Ke1 e2 Kf2 Bd3 Ke3 e1B Qa2 Bh4 Qb1 Bc5 f8B Ba7 Ndf7 Bc2+ Nd3 Bg3 Bb4 Bd6 Bc5 Nd5+ Ke4 Bf8 Bcd6 Ndf6+ Ke5 Bb7 Nb4 Qg6 Be7 Qf5+ Kd6 Qf2 Kc7 Ba8 Bc5 Bb7 Bb5 Bf3 Bc6 Qc4 Kb7 Rd3 Ka8 Qc3 Ne6 Nh3 Neg5 g1Q Bcd6 Qgg2 Rd1 Ng1 Rc1 Nh6 Re1 Rg8 Nh8 Rg6 Qa2 Nhg8 Qb3 Ne8 Rb1 Re6 Qa4 Nef6 Qb5 Qfg3 Qa5 Q3f2 Qb6 Qxc6+
1B3QK1/4Pn2/NrBb4/r1bRqqnr/1P3N1R/qb5n/2q2RPn/6k1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 Kg3 e4 Kf2 b6 h5 b7 a5 Ba3 d5 Bc4 f5 Bb5 f3 Qd3 c2 Qc4 c1Q Nc3 h3 Qd3 h2 Ba6 a4 Nb1 h4 Nd2 h3 Qb3 d4 Bc4 d3 Qb1 f4 Bb5 Qe7+ Kd5 Na6 b8R Nc7+ Kd4 Be6 Ke5 Nh6 Rb6 Bb3+ Re6 Ra5 Bb2 a3 Nc4 d2 Nd6 d1Q Nc8 a2 Qd3 Qdc2 Qd7 Nf7+ Kf5 Rh6 Be5 Qa3 Rb1 a1B Rd1 Bd4 Na7 Bc5 Rf6 Ne6 Ne2 Neg5 Qe8 Rg6 Bb8 Qe5+ Kg4 Bfd6 Qf8 Rh6 Bc6 Rg6 Rd5 Rh6 Re1 h1N Nb5 h2 Nc7 Rh5 Na6 Rh6 Nc3 Rh5 Re2+ Kg1 Rh6 f2 Rh8 f1N Rf2 f3 Rh7 Qg3+ Kf5 Qf4+ Kg6 Qe5 Rfd2 Nf2 Ne2+ Kh1 Rh8 Nfh3 Nf4 Kg1 Rf2 h1R Rh6 Nh2 Rh7 Qf5+ Kg7 Qe5+ Kg8 Rh6 Rh8 Rf6 Rh4 Re6 Rfd2 f2 Re2 f1Q Rf2 Qf5 e5 Qfa1 Be8 Rf6 e6 Qae5 e7 Bc7 Rd8 Rb6 Rd5 B7d6 Bc6 Ng4 Nd3 Nf4 Rh8 Rh3 Rh6 Nh2 Rh8 Rh4 Rh7 Nfh3 Nf4 Rh6 Rh8 Re6 Rh5 Rh6 Rh4 Rh5
b6b/r1R1brR1/1r1P1n1b/6QN/1nB2bnP/1bKNq1P1/5n2/1BN2k2 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 g3 Nf3 exf6 Ng1 f5 Qb3 f4 Qa4 Qe7 Qd1 Qd8 Qb3 h5 Qf3 h4 b3 Qd5 Kd1 Qd3 Ba3 Qd8 Bc5 h3 Bf2 gxf2 g3 Bf5 Qb7 Bc8 Qg2 hxg2 Kc2 Ke7 d4 Kd6 e4 c5 h4 a5 b6 f5 d5 Ke5 b4 Kd4 d6 Ke3 e5 a4 b7 c3 b5 a3 e6 a2 e7 f3 e8B c4 b6 f4 Bh5 Qe7 Ne2 g1N Bh3 f1R Na3 Kf2 Rb1 a1B Bg6 Be6 Nc1 Nf6 Bg4 Nc6 b8Q Nh3 b7 Ra7 Rb3 Nb4+ Kb1 Qe8 Qc7 Be7 b8N Rf8 B6f5 Rf7 Bg6 Kg2 B6h5 f2 Rb2 f3 Re2 Rg1 Bg6 Kf1 Nd3 c2+ Kc1 Bd5 Kd2 Ba8 Nb1 c1B+ Kd1 c3 Nd7 Bd2 Be6 Bh6 Qc5 Bf4 Qe3 c2+ Kd2 Bb2 Nc3 c1B+ Kd1 Bh6 Qg5 Bf4 Na2 Kg2+ Re1 Ne4 Qh5 Bef6 Qd5 f1N Qf5 f2 N7e5 Rf8 Re2 Nc2 Nd7 Nh2+ Re1 Qe7 Qg5 Ng4 N3e5 f1B Bd5 Bh8 Nf6 Bc4 Nh5 Bc3 Be6 Bcd5 Ke2 Nhf2 Rb1 Rc1 Rb7 Rb1 Rc1 Rb6 Bh7 Qe8 Rg7 Nb4 Bf7 Bd4 Rc7 Bb3 Bc4 Rf7 Nc1 Qe7 Ng6 Bf6 Ne5 Qe6 Ke1 Bd8 Ke2 Nef6 Bb1 Be7 Ke1 Ne3 Kd2 Neg4+ Kc3 Kg1 Ned3 Qe3 Qe5 Kg2 Qg5 Kf1
4K3/R1r2R1b/3P3k/qRq3q1/q1B4b/n1PP1NNB/b1qbn3/1n3Qb1 w - - 0 1 illegal: No proof kernel
1rq1rn1r/P1Q2r2/1N1bk3/B3b1P1/KNR3rq/1N1B1b2/P3R1br/b7 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 c5 b5 cxd4 e5 Na6 bxa6 f6 Qd2 fxe5 Qc3 e4 Qb4 axb4 Kd2 Kf7 c4 h5 Kc2 e5 Kb3 d5 f4 b5 g4 h3 g5 d3 c5 d2 a7 d1R c6 e3 c7 e4 f5 h4 f6 d4 Bd3 e2 Nc3 e1B Bf4 e3 Nce2 h2 Bg3 h3 Be5 Bb7 c8N Ne7 Bd6 Ke6 f7 Bg3 Be5 Rf1 Nf3 Ng6 Bc7 Be5 Rd1 Bfd6 Rb1 Nf8 Nc3 e2 Rc1 e1B Bg6 d3 Nd1 d2 Nb2 d1B+ Bc2 B1c3 Ne1 Bdf3 Nbd3 Ba1 Ne7 Qc8 Rg1 h1R Nb2 h2 Nd5 Bg2 Nb6 Bbf3 Ned3 Rf2 Rgf1 Rg1 Bb1 h1Q Rfd1 Qh4 Rc4 Rh1 N2a4 Rh2 Rd2 Rf1 Re2 Rg1 Kc2 b3+ Kd2 b2 Kc2 b4 Kb3 Rb8 Bd8 Rb7 Bc2 Re7 Bc7 Re8 Nac5+ Ke7 Ka4 b1R Nb3 Rbf1 Bd8+ Ke6 Bc7 Bh1 Bd8 Rg4 Bc7 Bhg2 Bd8 Nh7 f8Q Rf2 Qg7 Nf8 Qc7 Rf1 Nd2 b3 Nb4 b2 Nb3 b1R Bh7 Ba8 Be4 Rf7 Bd3 Baf3 N6d5 Ree7 Qa5 Rb2 Nd2 Qh6 Nc2 Rbb7 Nb3 Be4 Ncb4 Rb8 Qc5 Re8 Ba5 Qh4 Nb6 Bb7 Qc7 Bbf3
Kn6/1RB2q1q/n1rr3Q/n1Pq1r2/N4P2/1Prr1qkB/r2R1N2/1B1b4 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 h5 f5 Bg5 fxe4 Bh6 g6 Bg7 gxh5 Bxf8 h4 Kd2 Kf7 g4 Ke6 f4 h5 c4 a5 g5 Kf5 b3 d5 g6 e5 g7 d3 Ke3 d4+ Kd2 Ra6 c5 e3+ Kc1 d2+ Kc2 h3 Kd3 a3 Kc4 e4 Kb5 h4 Qc2 Kg4 Bd6 d1R Nd2 a2 Ne2 d3 Bg2 a4 Be7 a3 Bg5 h2 Re1 h1Q Rg1 h3 Qc4 h2 Rc1 a1Q Qd5 a2 Nc3 e2 Be7 e1R Ncb1 e3 Nf3 e2 Na3 d2 Qd6 Rh5 Bh4 Qaf6 Nb1 a1R Nc3 Ne7 g8B R1a2 Nb1 Nec6 Ng5 Na5 Qe5 Rc6 Nh3 Qc7 Bc4 Qh7 Bd3 Bf5 Rc4 Qff7 Rb4 Bc8 Bg5 Kg3 Qd6 Bg4 Bd8 Rf5 Bc7 Rf1 Qf6 e1N Qh6 Rf3 Nf2 Nc2 Nc3 Rc1 Rf1 d1R Bh3 Rd2 Be4 Rdd6 Na4 Re3 Bd3 Qhd5 Rd1 h1Q Rd2 Bd1 Be4 Qf3 Bd3 Na1 Bb1 Rcc3 Bb6 Nd7 Ka6 Nc2 Ka7 Red3 Bc7 Nb8 Rb7 Nb4 Ka8 N4a6
2kr3K/bNr3n1/2PQ3N/2RRN3/PPb2B1n/4r3/1nr1b1bb/1r1r1B2 w - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 h5 b5 h6 bxc4 Nc3 gxh6 Nb1 h5 Rh2 h4 Rh3 Bg7 Rh1 Bf8 b4 c5 d4 c3 Nd2 a4 Nb1 c4 Qc2 Qg5 Qb3 Qc5 dxc5 axb3 Kf2 Kd8 Kf3 f5 g4 h5 a4 d5 e4 b2 c6 d4 e5 h3 e6 c2 g5 d3 g6 c3 g7 h4 Ra2 d2 Rh2 d1N Re2 h2 Re3 h1B+ Bg2 h3 Re1 h2 Nd2 b1R Re5 Na6 Ne2 Bd6 Ng3 Nc5 Bb2 c1B Ndf1 c2 Re1 Rh7 Be5 Nh6 g8N Be3 Re2 c1R Nd2 Ba6 e7+ Kc8 Bc3 Bc4 Nde4 Ne6 Nh5 Ba7 Nhf6 Rc2 Nc5 Nb2 Be5 Ng7 Nb7 Re1 Rd2 Re3+ Kf2 f3 Kg3 f2+ Kf4 f1R+ Kg5 f4 Kg6 f3 Rd5 f2 Bf4 Rb1 Bf1 Bdb8 Nd7 Bg2 Ne5 Nhf5 Nh6 h1R Ra3 Rd1 Rc3 Nh4+ Kf7 Rb1 Kg8 Be2 Rcc5 Bc4 Be2 f1B Bd3 Be2 e8Q+ Kc7 Qe7+ Kc8 Qd6 Rhd1 Ra5 Nh5 Rc5 Rc7 Kh8 Ng7 Bh7 Rd4 Be4 Rdd1 Bd3 Re7 Nef7 Bh5 Bf1 Bhe2 Qf6 Bd6 Bg5 Kb8 Qe6 Bh2 Ne5 Rd7 Qe7 Kc7+ Qf8 Rad8 Bf4 Kc8 Rd4 Rc7 Rdd5 Ne8 Qd6 Ng7+
2N1q3/4RP2/bBBKP2k/1qRr2b1/4rPqN/3N1n1r/1qp3n1/2n2qQ1 w - - 0 1 legal: proof: c4 a5 g4 f5 gxf5 g5 h4 gxh4 d4 d5 b4 dxc4 d5 axb4 d6 exd6 Bb2 d5 Bc1 d4 Kd2 Kf7 f4 Kg7 a4 h5 e4 c5 e5 b5 f6+ Kh6 a5 d3 Ke3 b3 Ke4 b4 a6 d2 f7 c3 e6 c2 Ke5 c4 a7 h3 Qe1 d1Q Ra5 h2 Qg3 b2 Be3 c1N Bf2 h4 Ra3 c3 Bb6 c2 Rc3 b3 Rc6 h3 Nc3 b1Q Qg2 b2 Na2 Ne7 Bb5 Qg4 Ba4 Nf5 Qd2 Be7 Rc4 Nh4 Bf2 Nc6+ Ke4 Ng2 Nf3 Ba6 Qd4 Bg5 Nh4 Qe8 Kd5 Ne5 Bc6 Nf3 Rd1 h1R Rc5 h2 Kd6 Re1 Nb4 h1Q Nd3 Qf1 Bg1 Rb8 a8N Rb5 Nb6 Re4 Nc8 Qa1 Qe3 b1Q Bf2 Qbb2 Qe1 Qe2 Qg1 Qf1 Bd4 Qa5 Be3 Ne2 Ra1 Nc1 Ra3 Qa4 Rb3 Ra5 Rb7 Qab5 Re7 Kg7 Ng6 Rh3 Nh4 Kh6 Rc4 Qa4 Bb6 Rf5 Rc3 Qab5 Rc5 Rd5+
2B1R3/1n2p1PN/2b5/b1qr3q/Rrkn3n/2P3Bn/4P1n1/qrQN2KR w - - 0 1 legal: proof: b4 a5 g4 h5 a4 g5 f4 axb4 d4 gxf4 g5 b5 axb5 c5 Qd3 cxd4 Qf5 Qb6 Qh3 Qd8 Qg4 hxg4 Kf2 f5 h4 Kf7 g6+ Ke6 b6 Kd5 b7 f3 h5 g3+ Ke1 b3 h6 f4 h7 b2 Rh3 d3 Ra2 d2+ Kd1 f2 Rh1 g2 Na3 b1R Nb5 f3 Na7 Nf6 Nc6 Ne8 Nd4 Qc7 Nc6 Bh6 g7 Kc4 Nd8 d5 Rh4+ d4 Nf7 Bd7 Ra1 Nc6 b8R Ra4 Ra3 Rab4 Rf4 Nd6 Re3 Nb7 Ree4 Rd8 Nh3 g1N Bg2 f1N h8Q f2 Re3 Nf3 Re5 Nh4 Nfg5 Qb6 Rg4 Qc5 Nh7 Bf4 Rf5 Bc7 c3 Ba5 Rh5 Be8 Be4 Rd5 Bf5 Bd7 Re4 Be8 Bc8 Bd7 Kc2 d1N Bf4 Nfe3+ Kd2 f1Q Nf2 Qh3 Ke1 Neg2+ Kf1 Qf3 Rh6 Qh5 Kg1 Be8 Bg3 Bd7 Re3 d3 Re4+ Nd4 Qf8 d2 Qf4 Bc6 Qg5 Nb2+ Nd1 Nd3 Ra8 Nf2 Rf4 Bb6 Ra4 Ba5 Rf8 Ne4 Qf4 Ng5 Re8 Qg6 Qf1 Qh5 Nf2 d1Q Qe1 Qb3 Qc1 Qa2 Nd1 Qb2 Rf6 Qa1 Rf2 Nf4 Rh2 Nfg2 Rh1 Nh3+
1qk1bnN1/2B5/1n6/NP2p1Kb/5q2/1bQRbP1P/rBbrR3/2b2n1N w - - 0 1 illegal: No possible last move, all moves rejected
6n1/rr1QqpPB/NqR1rN2/q1NB4/rRK5/2Pr1r2/2P2b1n/6bk w - - 0 1 illegal: Other
1RrbK1r1/b5rB/4b3/1PB3p1/1P2b2R/qR1NQqr1/1Pkb3N/1n3n2 w - - 0 1 illegal: Other
N1RbN3/K5q1/1Pn2n1q/1Pb2R2/5q2/Qp1nB2r/2PB4/Bn1rqkq1 w - - 0 1 illegal: No proof kernel
rBr5/1bPn3N/N2R1K1k/2q1n1p1/1bN3rP/R2b2B1/r3b2P/qQr5 w - - 0 1 legal: proof: e4 f5 b4 fxe4 d4 c5 b5 cxd4 a3 h5 b6 h4 g3 axb6 gxh4 b5 Bc4 b4 Ba2 b3 Qd2 bxa2 Qe2 Rh6 Qd1 Rh8 Kd2 Kf7 c4 Kg6 f4 d5 f5+ Kh6 f6 e5 a4 g5 c5 b5 c6 b4 f7 d3 Ke3 b3 c7 d2 a5 d4+ Ke2 d3+ Ke3 b2 a6 Nd7 a7 Ne7 Qc2 d1B Na3 b1B Ne2 d2 Ng3 Be2 Rd1 Nc6 Nc4 Bb7 Nh5 Bb4 Nf6 Qe7 Nh7 Rhc8 Qb2 Bbd3 Qb1 Qf8 Bb2 Qd6 Bd4 Qc5 f8B+ Kh5 Re1 d1R Bd6 Rc1 Rd1 Kh6 Rd2 Rg1 Rd1 Rg4 Rd2 Rf8 Rd1 Rac8 a8N Rfe8 Nab6 Rg8 Qc2 Ra8 Na4 Rgc8 Rac1 a1R Qb1 Ra2 Rc3 Qb6 Nc5 Qa5 Na6 Qc5 Kf2 e3+ Ke1 e4 Bg3 Qf8 Ba7 Nce5 Bb8 Qc5 Rd2 Bf1 Kd1 e2+ Kc1 e3 Ra3 e1Q+ Rd1 Ra1 Kb2 e2 Kb3 Qef2 Rd2 e1R Kb2 Bde2 Rd6+ Qf6 Kb3 Bd3 Kb2 Bfe2 Kb3 Bd2 Kb2 Ra2+ Kb3 Be3 Kc3 Rc1+ Qc2 Ng6+ Kb3 Qa1 Qb1 Qa7 Kb4 Bd2+ Kb5 Nb6 Kc5 Ba5 Re6 Nd7+ Kd6 Qf2 Rf6 Bb4+ Ke6 Qf5+ Kf7 Qc5 Rd6 Nb6 Ke6 Ne5 Kf6 Nbd7+
1bqn2RQ/1RPP3p/4q1r1/5q2/1BNbN3/1B1qb3/1P5K/rkqbN2n w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 Ra2 gxh4 Ra6 Bh6 Ra1 Bf8 c4 d6 d5 Nc6 Qd4 Nb8 Ra3 Nf6 Rc3 cxd4 c5 Ng8 c6 Bg7 Rc4 Bf8 Rc5 dxc5 f4 Kf7 Kf2 Kg6 g4 e5 Kg2 a5 d6 h3+ Kg3 h2 b6 e3 g5 Kf5 b7 Ke4 f5 c4 f6 d3 g6 c3 f7 a4 g7 d2 Bc4 d1Q Na3 c2 Nb5 a3 Nd4 e2 Be3 e1B+ Bf2 c1B Nb3 a2 Bd5+ Kd3 Nd2 Kc2 Be6 a1Q Kg2 e4 Bb6 e3 Bc7 e2 Bd7 Qa5 Nb1 Nh6 g8Q Ng4 Nh3 Bf2 Rg1 e1Q Nd2 Bd4 Nf3 Bce3 Be6 Qf5 Nhg5 Nf2 Ba5 Nh1 Bb3+ Kb1 Ne4 Qd3 Bb4 Ra1 c7 Nc6 Qg7 Rg8 b8R Be6 d7 Qc8 Rb6 Nd8 Rb7 Bfc5 f8N Ba7 Ng6 Bb8 Nge5 Bf7 Nc4 Bh5 Rb5 Bg4 Qh8 Rg6 Rb7 Qc1 Ne1 Bd1+ Ng5 Qfe4+ Kh3 Qe6+ Rg4 Qdf5 Ne4 Qc3 Kg2 Qd3 Rg5 Nf2 Rg4 h1Q+ Kg3 Qhf1 Kh2 Nh1 Rg1 Qd2+ Rg2 Qc1 Rg1 Qd3 Rg2 Rf6 Rg8 Rg6
1r6/rPRQ2Rr/1PN1Pp2/1Nn4k/bb2q1b1/Brb4q/1r2nR2/2K2B2 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 e4 h5 b4 d5 g4 a5 e5 d4 b6 h3 g5 h2 b7 h4 g6 f3 b5 a4 g7 a3 b6 f2+ Ke2 d3+ Ke3 h3 Nf3 a2 Qb3 d2 Bg2 f1R Qb4 d1B Qa4+ Nd7 Qb4 c2 Kd2 f6 Qe4 Kf7 Qe1 Kg6 Bb2 c1R Nc3 Qe7 Ng1 Rb1 Nb5 Ba4 Qf2 Nh6 Bd4 Rb3 Re1 a1B Na3 Ra7 Re2 Nf5 Nf3 Rfb1 Bc5 Ng3 Rc1 h1R Bf1 h2 g8R+ Kh6 Rc4 Bc3+ Kc2 R1b2+ Kc1 Qh7 Qd4 Qe4 Rg7 Rg8 Rf2 Ne2+ Kd1 Bd6 Nb5 Bf8 Ba3 Bfb4 Rc6 Nc5 Rcc7 Bg4 e6 Rb8 Qd8 Rg1 Qd7 h1Q Ne5 Qh4 Rf7 Rh1 Nc6 Kg5 Re7 Qg3 Rf7 Rh7 Re7 Kh5 Rg7 Nd4+ Kc1 Qgd3 Rh2+ Qh3 Rf2 Ne2+
1qNRBBK1/3nr3/4rN2/b2n1nB1/4Pp2/qPn2Pb1/3R1b1r/4k1bQ w - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 g5 axb4 g6 hxg6 Nc3 g5 Nb1 g4 a4 bxa3 Qd3 b5 Qc4 b4 Kd1 b3 Qa4 b2 Ke1 Bb7 Qb3 Bf3 Qd3 Bd5 Qd1 Bb3 cxb3 Qh4 Qd3 Qg5 Qd1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf4 f5 e4 c5 h4 g5+ Kg3 Ke5 f3 d3 h5 Kd4 h6 a2 h7 c4 Na3 Kc3 Nh3 b1N Ng1 d2 Qe1 d4 Rh6 d3 Re6 Ne7 Qe2 d1R Rd6 d2 Nc2 Ra7 Nh3 Nd5 Qg2 Re7 Qh1 Nd7 Rg6 Qb8+ Kg2 g3 Rc6 g4 Kg1 g2 Kf2 g1B+ Ke2 g3 Nb4 g2 Nf2 Bg7 Ng4 Be5 Rd6 Bf2 Nc6 g1B Nf6 Beg3 Na7 f4 Nc8 Kc2 Ba3 c3 Bh3 Rhe8 h8B Re6 Bg7 R8e7 Bf8 Rc1 Bh6 d1N Bg5 N1e3 Bf5 Rd1 Bg6 Nf5 Be8 Rf1 Bc5 Kc1 Kd3 Kd1 Kc4 c2 Bb4 c1B Ba3 Bd2 Bc5 Nf8 Rd8 Nd7 Ba3 Ke2 Bd6 Nbc3 Rd1 a1Q Bc5 Bde3 Rd2+ Ke1 Bb4 Qa3 Bd6 Rg7 Bf8 Bb6 Qh6 B1h2 Ng8 N5f6 Bh4 Rd6 Bg5 Ba5 Qh5 Rh1 Qh7 Nfd5 Nf6 Bhg1 Qh3 Rf7 Qg2 Rh2 Qh1 Nfe3+ Kd4 N7b6 Ke5 Ra7 Bb5 Nf5 Be8 Rdd7+ Ke6 Ra6 Be7 Rc7 Kf7 Rb7 Kg8 Rc7 Bf8 Re7 Bfh6 Nd7 Bf8 Rae6
N1r5/n6q/n3RRb1/1BPR1bbk/2Pq1r2/Nrp1BP1n/nb6/3K1Q2 w - - 0 1 legal: proof: c4 c5 b4 f5 e4 fxe4 h4 g5 d3 gxh4 Qb3 a5 Qc3 axb4 d4 bxc3 dxc5 Bh6 Bg5 Bg7 Bc1 Bf8 g4 Kf7 a4 Kg6 f3 d5 g5 b5 a5 h5 a6 e5 a7 e3 Bh3 d4 Kd1 d3 Na3 e4 Bd7 e2+ Ke1 h3 Bc6 h4 Rb1 b4 Bb7 b3 Be3 d2+ Kf2 d1B Ke1 b2 Ra1 b1R Bc6 h2 Bf4 h3 Be5 Rb3 Bf4 Kh5 g6 Ne7 g7 Bc2 g8Q Bf5 Qe6 Qd4 Qd7 Nc8 Ra2 Na6 Bh6 Be7 Nb1 Bg5 Rb2 Rf8 Bb5 Rb8 a8R Na7 Qh7 Rbc8 Qh8 Bc1 Ra2 Bb2 Ra4 Bg6 Ra1 Rf4 Na3 Bf5 Rd1 Bb1 Rd3 Bg6 Re3 Bf5 Kf2 e1N Ke2 Nd3 Kd1 Nc1+ Rd3 e3 Ne2 Na2 Re1 h1Q Rb8 h2 Rb6 Bc1 Rf6 Bb2 Qg7 Bg6 Rd2 Bgf5 Qg1 Bbd3 Qf1 Bg6 Nc1 Bdf5 Nd3 e2+ Kc2 Re4 Ne5 Rf4+ Rd3 Qg2 Nd7 h1N Bg5 Nf2 Nb6 Qh2 Na8 Nh3 Bh6 Rg4 Be3 Rf4 Rb1 e1B+ Kd1 Bh4 Rd2 Qd7 Rd5 Bg5 Rc1 Qh7 Rc2 Qg1 Re2 Be8 Bd4 Qf2 Ree6 Beg6 Be3 Qg1 Bc1 Qd4+ Bd2 Qe5 Be3 Qd4+
1r2q3/Qp1PR3/1n6/3rN3/q1N1b1n1/1q1n3P/P1N1KBk1/1BbbR1qn w - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 exf5 a5 d4 axb4 g4 h5 Qc2 hxg4 Qd3 cxd3 f4 Kf7 d5 Kf6 h3 c5 d6 g5 Kf2 e5 Nd2 b3 Ne2 c4 Ke1 c3 Nc4 c2 Nb6 d2+ Kf2 b2 Nc4 b1Q Ba3 c1Q Na5 g3+ Kf3 g4+ Ke3 g2 Bc5 g1N Ba7 e4 Bc5 g3 Bb4 g2 Nd4 Qd1 Nac6 Qe8 Nf3 Ra5 Rh2 Rd5 Na5 Qbb3+ Bd3 Nd7 Nc4 Ne2 Nfe5 Nh6 Bc5 g1Q+ Rf2 Qa4 Bb1 Nb6 Bd4 Be6 d7 Ng3 Bc5 Qdc2 Bd4 Nh1 Ke2 e3 Rf3 Kg7 f6+ Kh7 f5 Qcb3 f7 Ba3 f8Q Ng4 f6+ Bf5 f7 Be4 Qg8+ Kh6 f8N Kh5 Rf7 Kh4 Ne6 Kg3 Re7 Bc1 Bc5 Kg2 Nd4 Qf7 Qg7 Rb8 Nc2 Qe8 Qg6 Nc8 Qa6 Nb6 Bd4 Bg6 Qa7 Ba3 Bc5 Kh2 Kf3 e2+ Be3 e1N+ Ke2 Kg2 Bf2 Bb2 N2a3 Be4 Bc2 Nd3 Re1 Bc1 Bb1 Qbb4 Nc2 Qba3 Nb4 Q3b3 Nc2 d1B+
k1b3R1/2P2nr1/3p3B/N3Bb2/rq2q3/2P3Nq/2Pr2Br/1rKRQ1bb w - - 0 1 illegal: Other
Nb1q2r1/1pbk1Pnb/q1r1b2q/N5P1/2R3RN/1PB4K/2Q1B3/1r1br3 w - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 c5 h5 cxd4 h6 gxh6 Be2 h5 Bf1 h4 b3 a5 Qf3 a4 Qd1 Nc6 Bb2 Na5 Bc1 axb3 Qg4 b2 Qd1 Nb3 axb3 Qc7 Bh6 Qb6 Bc1 Qd8 f4 d5 Kf2 e5 g4 h5 Kg2 h3+ Kh2 d3 c4 h4 g5 d4 f5 e3 f6 e4 c5 d2 f7+ Kd7 Bg2 d3 Qe2 d1Q Ra4 d2 Ra3 Qf1 Qh5 d1B Nf3 e2 Qh7 e1B Bf4 e3 Ra4 e2 Rb4 Nf6 Bc7 Rg8 Rb6 Nh5 Rb4 Ng7 Rc4 Ra6 Nbd2 b1B Ba5 Rc6 Bc3 Bf2 Qg6 e1R Qc2 Bd4 Rg1 Be5+ Rf4 Qa6 Bf1 Bc7 Be2 Be7 Rg4 Bed6 Nc4 Bb8 Na5 Bdc7 Qd2+ Bd3 Qc2 Bh7 Bd3 Ree8 Be2 Re5 Rc4 Re3+ Kg1 h2+ Kg2 Re5 Kh3 h1R+ Kg2 h3+ Kg3 h2 Nh4 Ke7 Kg2 Be6 Kh3 Rd6 c6 Rf1 Bd3 Ree1 Be2 h1Q+ Kg3 Bb6 c7 Kd7 c8N Qc6 Kh3 B6c7 Bd2 Qcb6 Bc3 Rc6 Qg6 Qd4 Qc2 Q4f6 Nb6+ Ke7 Qb2 Qh6 Na8 Kd7 Qb1 Bdc2 Qb2 Rb1 Qc1 Bd1 Qc2 Re1
1nq3q1/1k3n1R/1Nn2R1K/pn1R1B2/1P1qrPPn/3NQ1br/2B5/2n4q w - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 g4 Bb5 g3 Nb1 fxe6 Bd3 e5 Bf1 e4 f3 Ba6 Be3 Qb6 Kd2 Qd8 Bf2 gxf2 g4 Bc4 g5 Be6 h3 Bg4 hxg4 Bh6 Qe1 Bg7 Qd1 Bf8 c4 a5 b4 h5 c5 e5 c6 d5 g6 e3+ Kd3 h4 g7 e2 c7 Kd7 c8R e1N+ Kd2 h3 Ra2 d3 Ke3 d4+ Ke4 h2 Kf5 d2 Kg6 a3 Rc1 e4 Rc3 e3 Qc2 d1Q Rc5 e2 Rh5 d3 Qd2 Kc8 Qf4 d2 Qe5 Nd3 Ra1 e1N Bh3 f1Q Qe6+ Kb7 Qb3 a2 Qc2 Ng2 Qb2 Nh6 g8B Nc1 Nc3 Qc8 Bh7 Bd6 Qa3 Qfc4 Nge2 Nf7 Nd5 Bg3 Nef4 Nh4+ Kg7 Ra6 Bc2 Re6 Qe3 Re4 Bg2 Rh6 Rb1 a1N Nb6 Nab3 Nd3 Nd4 Rd5 Ndc6 f4 Qa2 Rb3 Qg1 Rc3 d1N Rcc5 Rh5 Rf5 Qd5 Rf6 Nc3 Bf1 Qb3 Rd5 Nb5 Bg2 Qe1 Bf1 Qec3 Bg2 Qd4 Bf3 Re7 Be4 Qa2 Bf5 Re4 Re1 h1Q Re2 Nf3 Rh2 Rh3 Kg6 Nh4+ Kg7 Nfd6 Kh7 Qb3 Kh6 Nf7+ Kh5 Ng5 Rf2 Rh2 Rc5 Qbg8 Rd5 Nf7 Rg2 Bf2 Rg3 Nf3+ Rh3 Bg3 Rh4 Qgf8 Kg6 Rh3 Rh8 Qfe8 Rh7 Nh4+ Kg7 Nfd6 Kh6+ Qf7 Bd7 Qfg8 Bf5+ Nf7+
2BN1Q2/2k2Pr1/1r1NPqr1/7p/nq5R/1qPq2rK/b3B1rn/1BRr4 w - - 0 1 illegal: No possible last move, all moves rejected
1B2knB1/4P1rP/KR1Qp2b/B2n4/rNN1R3/qnPn1p2/1b3bn1/4r3 w - - 0 1 legal: proof: b4 b5 a4 e5 f4 exf4 g4 c5 e4 h5 e5 hxg4 e6 Ba6 e7 cxb4 Bh3 b3 Bf1 b4 Qe2 Bb5 Qe6 dxe6 axb5 Kd7 Ke2 g5 Kd3 a5 Kc4 f5 h4 b2 d4 a4 h5 a3 c3 a2 d5 g3 h6 b3 h7 g2 d6 g4 b6 g3 Kb5 Bh6 b7 Nf6 Ne2 g1N Nd2 b1R Rh4 g2 Ne4 b2 Nd2 Nd5 Rh2 Ke8 Rh4 Qa5+ Kc4 Nd7 b8B Qa3 Kb5 Ra4 Ba7 Nf3 Bf2 g1B Bb6 Nfe5 Nd4 Rg8 Ba5 Nf8 Be2 Nd3 Ka6 Rg7 Nc2 Ba7 Nf1 Bb6 Nfe3 Ba7 Bd2 Re1 Rb1 a1B Bg4 f3 Bc1 f2 d7+ Kf7 d8Q f1N Qd7 f4 Bh5+ Ng6 Qc7 f3 Re4 Ke8 Qf4 Ne5 Nc4 Nfe3 Qh2 Ng2 Bf4 Bf2 Bg3 Nc6 Bb8 Ne5 Bg4 Nf8 Bh5+ Kd7 Bf7 Nd3 Bg8 Ke8 Qd6 Bg1 N4e3 Bf2 Rd1 b1N Nc4 Nd2 Rb1 Bb6 Rb2 Bf2 Rb6 Bb2 Nb4 Nb3
b7/B2Q1q2/KP3Nn1/2bR3b/4P1r1/q1b2q1B/PrN1pkp1/b1R2nR1 w - - 0 1 legal: proof: c4 a5 e4 f5 g4 h5 b4 f4 d4 e6 d5 exd5 Qd3 b6 Qe3 fxe3 Nd2 d4 gxh5 b5 Rb1 bxc4 b5 Rh7 Rb3 Rh8 Rb4 axb4 Ke2 Kf7 f4 Kf6 h4 d5 h6 g5 h7 c5 b6 c3 Kd3 b3 f5 Ke5 h5 Kf4 f6 Kg3 f7 c4+ Ke2 g4 h6 b2 Nh3 b1Q Nf2 c2 Rh5 d3+ Ke1 d4 Ra5 c3 Ra6 Qf6 Bh3 Qb2 Nd1 Nc6 Ra7 Na5 Rb7 Qa3 Re7 Nb3 Nf2 Bb7 Re6 Ne7 Nb1 d2+ Ke2 d1B+ Kd3 Ng6 Kc4 d3 Kb5 d2 Bg2 Bc5 f8Q Qf7 Qg7 Rag8 Rd6 Ba8 Bb2 c1B Bh3 c2 Rd5 Kf3 Bc3 g3 Ng4 Bb2 Be5 c1B Bb8 Bc3 Ba7 B1b2 Qd4 g2 Nf6 Ba1 Qa4 Rg7 Ka6 Rf8 h8R Kf2 h7 Bh5 Rg8 d1Q h8R Rd8 Rf8 Rd7 Rc8 Qf3 Rh7 e2 Rc6 Qb2 Na3 Nd2 Nc2 Nf1 Rc7 Rd6 Qd7 Qc1 Rh8 Qce3 Rd8 Rg8 Rd1 Rd4 Rc6 Rb4 Rc1 Rb1 Rd6 Rb2 Rd5 Nf4 Rc8 Rg4 Rc6 Ng6 Rcd6 Be5 Rdd1 Qeb3 R6d5 Bc3 Re1 Nh2 Rh1 Nf1 Rg1 Qa3+
Bb1b3K/2k1bp2/2PN3p/N3q1r1/3r4/Pqbb4/P2Rn1QR/qn1B3B w - - 0 1 illegal: No proof kernel
3nN1nN/2pn1qP1/3n1pR1/1nq2b2/K4R1q/R1rk1BQP/2b2P2/1r5B w - - 0 1 legal: proof: d4 d5 b4 a5 c4 axb4 e3 dxc4 Kd2 g5 Ke1 Bg7 d5 Bd4 exd4 g4 Qd3 g3 Qc2 Kd7 Qd1 Ke8 h3 h6 Bg5 b3 Kd2 Bf5 Nf3 Qd6 Be2 Qd7 Qg1 Qc8 Qh2 gxh2 g4 Bd7 Bf6 Qd8 g5 Be6 g6 Bc8 Bg5 hxg5 Kc3 Kd7 Kb4 Kd6 a4 e5 g7 b5 a5 b2 a6 c3 a7 c2 Kb3 c1Q Na3 b1N Bd3 g4 Rd1 h1N Rd2 g3 Ng1 b4 Ne2 g2 Ka4 g1N Rda2 e4 Ng3 e3 Be4 b3 Kb5 e2 Bg2 e1Q Rd2 b2 Bf3 Qe6 Nh5 Nc6 Ka4 Qc5 Nf4 Qh4 Ng6 Ng3 Rd1 Rh6 Nh8 Rb8 a8B Ne4 Ra2 Nd8 Nc4+ Ke7 d6+ Kf6 d5 Kf5 d7 Nd6 Bh1 Nf3 Rg1 Ke4 Rg6 Kd3 Ra3+ Rb3 Bb7 Ne5 Ba8 Rc3 Bb7 Nb5 d6 Nd2 Bbg2 b1B Bf3 Nb7 d8Q Ne4 d7 Ned6 Qe7 Nd8 Qg5 f6 Qg2 Qf7 Qg1 Rh5 Qg3 Ne6 d8R Nd7 Re8 Nd8 Re4 Re5 Reg4 Re1 Rf4 Bc2+ Rb3 Nf5 Nd6 Rb1 Ne8 Nfd6 Ka5 Nb6 Ra3 Be6 Rfa4 Nd7 Rf4 Rbb3 Ka4 Bg4 Qg1 Bf5 Qg3 Rb1+
2k1n2n/1pbb3P/N7/1qrr4/1BP2KQr/RbqrN1Nr/1P1p3B/3R4 w - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g3 cxd4 g4 hxg4 Qd2 a5 Qb4 axb4 a3 Rh5 Bc4 Rh8 Ba2 b3 Bh6 bxa2 Bg5 Rh7 Bc1 Rh8 Ke2 e5 c4 d5 h4 Kd7 f4 g5 a4 g3 Kf3 g4+ Ke2 d3+ Ke3 d4+ Ke4 g2 h5 d2 a5 d1B h6 d3 f6 g3 a6 Qa5 a7 Na6 f7 Ne7 f5 Nc7 f6 Bb3 Bf4 Qb5 Rh3 Ng6 Kf5 e4+ Kg4 e3 Nd2 e2 Bg5 e1Q Be3 Bd6 f8Q Ne8 f7 Bc7 Rc1 a1R Nf1 Qc3 Rd1 d2 Ne2 g1R Bf4 g2 Neg3 Ra3 Ne3 Rh1 Qg8 g1R f8B Kd8+ Kf3 Bd7 Bb4 Rc8 a8N Rh7 Bfd6 Nh8 Qg4 Rf1+ Ke4 Rf5 Be5 Rh5 Kf4 Rh4 Bed6 Rg7 h7 Rg5 Be5 Rh2 Bed6 Rd5 Be5 Ba5 Bed6 Rcc5 Nc7 Kc8 Na6 Bc7 Ra1 Rg2 Rhh1 Rgh2 Rhd1 R2h3 Ra2 Ra5 Ra3 Rd3 Ngf5 Re5 Kg5 Red5 Bf4 Qb6 Bh2 Nd6 Kf4 Rac5 Ng3 Ne8+ Kf3 Qb5 Ke4 Nd6+ Kf4 Ne8+
1Nq2rb1/R2q3b/3b2p1/3nR3/2B3Qn/Pq2NpN1/1BPk3P/K2r1b1r w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 dxe3 g4 a5 f4 axb4 f5 h5 gxh5 e6 Bg2 exf5 Bf1 f4 h6 Ke7 h7 Ke6 a3 Ke5 Qd3 b5 Kd1 f5 Qd6+ Ke4 Nf3 e2+ Kd2 e1R Qc5 d5 Qc3 b3 Be2 b2 Qf6 d4 Bf1 b4 Qh4 b3 Ra2 d3 Kc3 d2 Ra1 Ke3 Rg1 Bd6 Rg2 Ne7 Ng1 f3 Ne2 f2 Qb4 f4 Rg4 f3 Rh4 Rf8 h8N Nd7 Rc4 Ne5 Rc5 N5g6 Qb7 Nd5+ Kc4 Nh4 Ra5 Bf5 Nf7 Bh7 Ra7 g6 Ne5 Qc8+ Nc6 Rb8 Ng3 Rd1 Be2 f1B Nc3 b1Q Qb4 b2 Kb3 Rb5 Nb8 Qa2+ Ka4 b1B Bb2 Qac4 Bd3 Ba2 Be2 Qd3 Qg4 Rb7 Rb1 Rd7 Ra1 Rc1 Rb1 d1Q Ra1 Kd2 Rb1 Qe1 Nd1 Qf5 Bc4 Qee6 Ne3 Rdd8 Bh8 Rd1 Rbb7 Kc1 Re7 Rd7 Bd4 Rb7 Be5 Rb1 Bg7 Qg8 Re5 Qfd7+ Bb5 Nc7 Ne4 Kb2 Nd2 Bg2 Ne4 Rd5 Ng3 Rh1 Re4+ Kc1 Bd4 Bh3 Re5 Bf1 Bc3 Rd1 Ba1 Bf7 Bc3 Rd5 Kb3 Be6 Ka2 Rd1+ Ka1 Bb3 Rc5 Qc4 Be5 Qd3 Bd4 Bbg8 Re5 Nd5 Bc4 Qb3 Bb2+ Kd2+
BB1k1r2/Nr3b1N/nNnp3K/1p2r3/3qbRR1/1Q3qP1/3P2P1/5nrq w - - 0 1 legal: proof: c4 e5 b4 g5 f4 e4 b5 Bd6 b6 axb6 c5 bxc5 Bb2 c4 Bc1 c3 Qc2 Be5 Qd3 Bd6 Qf3 exf3 Ba3 gxf4 Bb2 Be7 Bc1 Bh4+ Kd1 Bg3 hxg3 Ra7 Ke1 Ra8 Kf2 b5 a4 h5 e4 f5 a5 c5 a6 h4 a7 c4 e5 c2 e6 h3 e7 h2 Ra5 c3 Ra3 Bb7 Rb3 Na6 Ra3 Rh7 Ra4 Be4 Ba3 c1R Bd3 c2 Nh3 Rg1 Bd6 c1R Na3 Rc5 Nc2 Re5 Bb8 d6 Rd4 Qb6 Nb4 Rf7 Ng5 Rf8 Bc7 Rb8 Nh7 Rb7 Nc6 Kd7 Bb8 Kc8 e8N Ne7 a8Q Qc5 Na7+ Kd8 Nc7 Nc6 Nd5 Qb4 Nb6 Qc3 Rb4 Qb2 Bf1 Qd4+ Ke1 f2+ Ke2 Qa1 Ra4 f3+ Ke3 Qc3+ Kf4 Qd4 Bc4 f1B Kg5 f4+ Kh6 f2 Rb4 f3 Bd5 Bc4 Ra4 f1Q Rb4 Rc7 Qb7 Rg7 Qf7 f2 Qf3 Qe2 Qb3 f1N Ra4 Qf3 Rb4 Na5 Ba8 Rb7 Ra4 Bf7 Rb4 Ne3 Ra4 Nc6 Rb4 Rd1 Rf1 Rb1 Rf2 Rg1 Ra4 Nf1 Rc4 Qfd3 Rf4 Qf3 Rc5 Ree7 Rg5 Re5 Rgg4 h1Q+
8/3p3b/1pb1N1R1/1P2bbBk/KN2Pr1q/B1NPb3/bn1Qn3/3r2Rn w - - 0 1 legal: proof: f4 c5 g4 e5 a4 exf4 b4 h5 a5 hxg4 Bg2 b6 Bd5 c4 a6 Bxa6 Be6 Bc8 Bd5 a5 Bxc4 a4 Bb3 axb3 h4 g5 c4 f5 e3 Kf7 c5 Kg6 c6 g3 c7 f3 b5 g4 Ba3 f2+ Ke2 f1B+ Ke1 b2 Bd6 g2 Ra5 g3 Qc1 f4 Kd1 f3 Kc2 f2 Kb3 Bb7 c8N Ne7 Qc3 Nf5 Qd4 Bd3 Qc4 f1B Ka3 Kh5 Nf3 g1B Bc5 g2 Qc2 Bc6 Ne7 Bg7 Ka4 Rf8 Nd5 Be5 Ba3 Ng3 Nd4 Bh7 e4 Rf4 d3 Be3 Rg1 Nh1 Nbc3 b1B Qd2 Ba2 Ne6 Be2 Nb4 Bg4 Ra7 Bgf5 Ra6 Ra7 Ra5 Rc7 Ra8 Qh8 Ra7 Rc8 Rc7 Rf8 Rc8 Rf1 Re8 Rd1 Re7 Qf6 Rg7 Qg5 Rg6 Rf7 Re1 g1N Rf1 Ne2 Re1 Kg4 h5 Kh4 h6 Kh5 Rg1 Qh4 Rg7 Na6 R7g6 Nc7 Qb2 Ne8 Qd2 Bg8 h7 Nd6 h8B Bh7 Bf6 Nc4 R6g2 Bfg6 Bd8 Rf4 Rg3 Bf5 Rg6 Na5 Bf6 Nc4 Bg5 Nb2+
Rn4N1/nk5p/3P3n/1P4Br/r1K1p1P1/N1R4b/1B2nbN1/1rnbnQ2 w - - 0 1 legal: proof: f4 b5 g4 d5 e4 f6 c4 dxc4 a4 bxa4 f5 g6 e5 Qd4 Bd3 Qf4 h4 fxe5 f6 Qg5 Bf5 gxf5 hxg5 e4 Ke2 Kd7 d4 Kc6 b4 e5 g6 a5 f7 f4 d5+ Kb7 g7 c5 b5 e3 Rh6 a3 Rf6 a4 Qf1 f3+ Ke1 e4 Qe2 c3 Qf2 c4 Re6 e2 Be3 c2 Kd2 c1N Kc3 e1N Qb2 f2 Qb3 f1B Re5 a2 Kd4 a3 Nc3 Ra4 Nge2 Nh6 g8N Be6 Ng3 Bh3 Ne7 Ne2+ Kc5 Rg8 Nf5 Rg5 Nb1 c3 Nh4 c2 Ng2 c1N Qd1 Rh5 Bg5 Bg7 d6 Bb3 Qd3 Bd1 f8B Bf6 Rf5 Bd4+ Kd5 Bf2 Bg7 Nc2 Bh8 Ncd4 Rf3 Ndc6 Ng8 Na7 Bb2 Ra6 Nd2 Ra5 Nc4 Ra4 Rb1 a1R Rg3 a2 Na3 Ng1 Qf1 Nge2 Rd3 Nb3 Rc1 Rb1 Rc8 a1N Rdc3 Nc2 Rf8 Ne1 Rd8 Ra5 Kc4 Nbc1 Re8 Nbc6 Ra8 Nb8 Ne7 Ra6 Ng8 Ra4+
5r1K/NkB1bNnn/p2pq2r/BPq1r3/1r1qP2q/1P1R4/1R1r4/3RQ3 w - - 0 1 illegal: No possible last move, all moves rejected
q2n1R1N/q2QN1Pk/1p4R1/r4pb1/nP1B1r2/1qr4K/PB5p/B1bb4 w - - 0 1 legal: proof: h4 e5 f4 exf4 e4 fxe3 c4 g5 b4 gxh4 Bd3 a5 Bc2 d5 cxd5 a4 Bb3 axb3 Kf1 h5 d4 c5 g4 b6 Kg2 c4 g5 h3+ Kg3 e2 d6 e1Q+ Kh2 h4 g6 b2 d5 c3 g7 c2 Nf3 Ra5 Be3 c1B Rg1 Nf6 Qc2 Bg4 Bf4 Ne4 Qd1 f5 d7+ Kf7 d6 Kg8 Be5 Nc3 Ng5 Be7 Nf7 Na4 Nc3 b1Q Bd4 Beg5 Nd5 Qb3 Ne7+ Kh7 Rg3 Rf8 Nh8 Nc6 Rg2 Qc8 d8B Qa8 d7 Rg8 Bc7 Rc8 Bce5 Nd8 Bb2 Rcc5 Bed4 Rc3 Re2 Bf3 Re6 Qa7 Rf6 Qe4 Rf8 Qea8 Rb1 Bg4 Ba1 Bh5 Rb2 Bg4 Rg2 Bf3 Qd3 Bd1 Rg4 Bf6 Rg6 Bfg5 Kg1 h2+ Kf1 Nf7 d8B h1R+ Kf2 h3 Kg3 h2 Kh3 Rf1 Bc7 Rc4 Bce5 Nd8 Bdb2 Rc3 Bd4 Bce3 Qb5 Rf4 Qd7 Bc1+
3N4/1bNn1p2/1Q1Rbqr1/3pBn1q/B5P1/P2Rr2N/1P2p3/qbk1n1K1 w - - 0 1 illegal: No proof kernel
4nR1n/3rP1k1/4B3/3B2pb/1r4PN/2pK2Nq/1qnpBP1b/1rq1Q1R1 w - - 0 1 legal: proof: h4 a5 b4 axb4 d4 f6 c3 bxc3 e4 g5 e5 e6 d5 exd5 e6 d4 h5 Qe7 Bf4 Qf7 Be5 Qg6 hxg6 fxe5 Ke2 c5 a4 d5 g3 b5 a5 h5 a6 e4 g7 c2 a7 c1Q Ra3 b4 Rf3 h4 Rb3 e3 Qd3 c4 Qf5 h3 Qf3 h2 Rb2 c3 Kd3 b3 Qf5 e2 Bg2 e1N+ Ke2 d3+ Kf1 d4 Nf3 d2 Ke2 d1R Nbd2 d3+ Ke3 Nh6 g8B Na6 Rc2 b2 Bh7 b1Q Qh3 Nc7 Bf1 Rb8 a8B Rb4 Qg2 Bd6 e7 Kf7 Rg1 h1Q Rb2 Kg7 Nh4 Nf7 Bd5 Ne8 Qe4 Bg4 Bf5 Qh3 Be2 Bh5 Bfe6 Qa1 Ra2 Qab2 Ra8 Rf8 Qh1 Nh8 Qe4 Rf4 Rb8 Rb6 Kd4 Rb7 g4 Rd7 Nf1 d2 Ng3 Nc2+ Kd3 Re1 Qe3 Rb4 Ra8 Nc7 Rf8 Ne8 Nf1 Bh2 Ng3 Rb3 Bf1 Rd1 Qe1 Rb4 Be2 Qca1 Rf5 Rb1 Rf3 Qc1 Rf8 Qab2
1K3Br1/8/1R2P1q1/R1Pbp1nN/pP4n1/B5rR/pbN2rQ1/1k2n1nn w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 Bg5 cxd4 Bc1 h5 gxh5 e5 Qd2 e4 Qd3 Qc7 Qd1 Qd8 Bh3 f6 Be6 Qb6 Bc4 Qd8 Bd3 exd3 e4 Qb6 e5 Ne7 e6 Qd8 Qe2 Ng8 Qe5 fxe5 Kd2 Ke7 c4 Kd6 h4 Kc5 f4 Kb4 b3 d5 f5 g5 h6 a5 f6 g4 f7 a3 h5 a4 h7 a2 h6 g3 Ne2 g2 Ng1 Bb7 Nh3 g1N Na3 Nc6 Nb1 Qe8 Rh2 Nf6 Re2 Ng4 Na3 Nd8 Rf2 Rg8 Kd1 Kc3 h8R d2 Nc2 Ba3 f8B Qg6 c5 Bb2 b4 Nf7 h7 Ng5 Rf7 Re8 Rc7 Re7 Nf4 Rf7 Nh5 Rf2 Rc6 Kb3 Ne3 Ka3 Rb6 Kb3 Nf5 Ka3 Kc2 d1N+ Kd3 Nde3 Rb1 Ng2 Be7 Rg7 Ra8 Rg8 h8Q Kb3 Ra5 Ka3 Qg7 Ba8 Bf4 Bb7 Re1 Bc6 Re2 Ne1+ Kd2 d3 Bf8 d4 Ne3 Kb3 Nc2 Bd5 Be3 Rf3 Rh2 Rg3 Kd1 d2 Rh3 Bc3 Qb7 Kb2 Qa8 Kb1 Bf4 Bb3 Qg2 Bb2 Be3 Bd5 Bf4 Ng1f3 Ke2 d1N Bc1 Ng1+ Kd2 Ba3 Bb2 d3 Bc1 Ndf2 Kc3 Nh1 Bb2 Be4 Kc4 d2 Kb5 d1R Ka6 Rd2 Ka7 Rf2 Bc1 Bb2 Kb8 Bc3 Bb2 Bd5 Ba3 Bb2
b2NQn2/4b1Bp/p2rPp1R/P1r4q/K4r2/R3n1nB/2rRP3/2b3Nk w - - 0 1 legal: proof: h4 e5 c4 g5 f4 gxh4 fxe5 b5 g3 hxg3 d3 bxc4 Bg5 cxd3 Bf4 Bc5 Bc1 Bf8 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 a4 Kg4 a5 c5 e6 d5 Bg5 a6 Bf4 c4+ Ka4 g2 b4 d4 b5 f6 b6 d2 b7 c3 Qb3 d1N Bh2 c2 Bd6 c1B Bh2 d3 Ra2 d2 Bg3 Ne3 Be5 d1R Bc7 Qe8+ Qb5 Be7 Rh2 Qh5 Rh1 Rd6 Qb2 Kg3 Nc3 Nh6 Qb5 Nhf5 Rd2 Nd7 b8R Nf8 Na2 Bb7 Nb4 Kf2 Rh2 Ng3 Nc6 Ra7 Nd8 Ba8 Bb6 Rc7 Qe8 Rc2 Bc5 Rg8 Rb1 Rg5 Ra1 Rf5 Bb4 Rf4 Ra3 Rc5 Rh1 Rc2 Nf3 g1R Bh3 Re1 Ng1 Rf1 Bg4 Kg2 Bf5 Qf7 Rh6 Qh5 Bh3+ Kh1 Qc6+ Re4 Rc3 Rd7 Nb7 Ng6 Qb6 Rff4 Qd8 Re5 Qe8 Bd8 Ra3 Rb5 Rd4 Rbd5 Bf8 Rdc5 Bg7 Be7 Nd8 Rdd5 Bf5 Rd6 Bh3 Rff5 Rd1 Nf8 Rd2 Rf4+
1R3BqN/2K2npn/B3k1n1/P1bNp1Q1/1nP1P2p/BR1qr3/4r3/n1b5 w - - 0 1 legal: proof: g4 a5 h4 c5 b4 axb4 d4 cxd4 g5 f6 h5 fxg5 h6 Nxh6 Rh5 b6 Rh4 Bb7 Rh2 Bh1 Rxh1 Ng4 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 b3 f4 b5 a4 b2 e4 b4 c4 d3 f5 b3 f6 d2 Bg2 Ba3 Qc2 d1Q+ Qd3 Nc6 Nh3 Nh6 Bf3 g4 Qd2 g3 Qd4 g2 Rf1 g1B Nf4 Qd3 Ne2 Qg8 Be3 Nb4+ Kc5 d5 Kb6 Ke6 Rd1 Nf7 Nd2 b1N Qc5 b2 Qf8 d4 Rf1 Nc3 Qd8 b1N Kc7 Bc1 Ra3 h4 Rb3 Na3 Rf2 Nac2 Nb1 Na1 a5 Rb8 Bf4 Rh6 Bg2 Rg6 Bh3+ Rg4 Bh6 Rb6 Rf5 Rg3 Bd2 Re3 Be1 Nd1 Nbc3 Nf2 Nd5 Rb5 Bg4 Nh3 Bc3 Nhg5 Bb2 Nh7 Ba3 Qb1 Bh3 d3 Bg4 d2 Bh3 Nh8 f7 d1N f8B Ng6 Qg5 Nf2 Rf3+ Ng4 Nef4+ Kf7 Rf2 Nh6 Bc8 Qd3 Rfb2 Re2 Ba6 Bc5 Ne7 Rb8 Nfd5 Ke6 Rb1 Nf7 R1b2 Nf4 Ng6 Re3 Nh8 Ng6 Rc3 Nbc2 Rb1 Rb2 Rb3 Ra2 Rb8 Nb4 Rb3 Rae2
3bRBR1/4r1Q1/3Npq1K/n4qr1/1p1Bq1b1/4NPPp/1q2B2P/k3r1n1 w - - 0 1 legal: proof: b4 b5 e4 d5 a4 dxe4 Qg4 f5 Qe2 f4 axb5 c5 Bb2 cxb4 Ba3 Bf5 Bc1 Bc8 d4 g5 Qe3 fxe3 f3 g4 Kd1 g3 Ra3 Bh3 Rd3 Be6 Rd2 Bc8 Rf2 gxf2 Ke2 Kd7 c4 Ke6 c5 Kd5 b6 Kc4 c6 Kb3 c7 Ka2 d5 h5 b7 a5 g3 h4 d6 h3 d7 a4 Bb2 a3 Bg7 Rh5 Be5 Nf6 Bg2 Rg5 Bf4 Ra7 Bf1 Ka1 Bd6 a2 Nc3 Nc6 b8B Nd5 Nb5 Na5 Bc5 Bg7 Nd6 Bf6 Bb6 Qf8 d8Q Bg4 c8R e6 Qe7 Qh8 Qg7 Re7 Rg8 Qh7 B8a7 Qf5 Bc5 Nf4+ Kd1 e2+ Kd2 e1R Be2 f1Q Ke3 Kb1 Bd4 a1Q Bac5 Qb2 Re8 Nd3 Rg8 Nc1 Re8 Qh7 Kf4 e3 Rg8 Ka1 Re8 Rc7 Rg8 Bd8 Re8 Rh5 Rg8 Re7 Re8 Rh6 Kg5 Rf6 Rg8 Rf4 Re8 Qf5+ Kh6 Qg2 Bd1 Re4 Ne2 Re5 Nf4 Ne2 Nd5 Ng1 Rg8 e2 Ne3 Rf1 Re8 e1Q Be2 Qeb1 Rg8 Re1 Nb7 Qf6+ Qg6 Rc7 Be7 Rec1 Bb6 Rg5 Bf1 Qgc2 Be2 Qcf5 Nd6 Qbe4 Bf8 Re7 Bc5 Bc7 Bd4 Q6e5 Qg7 Rd1 Bd3 Ne2 Ba6 Rb1 Rc1 Ng1 Be2 Bb6 Rc3 Re1 Rc8 Bc7 Re8 Bd8 Qf7 Qff6+ Qg6 Qff5 Qg7 Qef6+
2nrNb1K/1Bb2pN1/P1R1n1R1/2pP4/2n2B1p/rkqQ4/2q1N1qP/5n2 w - - 0 1 legal: proof: c4 h5 e4 d5 b4 dxe4 f3 exf3 b5 Bh3 b6 axb6 c5 bxc5 Qb3 c4 Qd1 c3 g3 Be6 g4 h4 Qc2 Bf5 Qb3 Bg6 Qd1 Bh5 gxh5 Ra4 Ba6 Ra5 Bf1 Ra8 Kf2 Kd7 Ke3 Kc6 Kf4 Kd5 Kf5 c5 a4 e5 d4 g5 a5 b5 h6 g4 h7 g3 Qe1 g2 Bb2 f2 Qe3 b4 Be2 f1N Nf3 g1Q Ba3 e4 Ne5 c2 Nc4 c1B Bf3 b3 Nd6 b2 Ne8 Kc4 Nc3 b1N Ne2 Ne7+ Kf6 Qg2 Rg1 Nbc6 Bb4 Qd7 Bd2 Nc8 Ra2 Rg8 h8N Na3 Ng6 Nd8 Ne7 Ne6 Nf5 Qa4 Nfg7 Qc2 Rb2 Ra7 Rb6 Ra6 Rc6 Ra7 Qg5 e3 Qg6 Kb3 Qf5 Bb2 Qd3+ Bc3 Bc1 Nc4 Be4 Rd7 a6 Rd8 Nh5 Rg3 Nhg7 Rh3 Bd5 Qh1 Rg6 Qg2 Rc7 Rg3 Bb7 Rh3 Rc6 Rf3+ Qf5 Ba5 d5 Rg3 Qe4 Bc7 Qd3+ Ka4 Nd4 e2 Bf4 e1Q Ne2 Qec3+ Be5 Nd4 Bf4 Kb3 Nh5 Bfd6 Kg7 Bf8+ Kh8 Ne6+ Nhg7 Re3 Ng3 Re1 Ne2 Ra1 Qd2 Ra5 Qd3 Ra3
R1nK1k2/1P5B/Qb4p1/N5r1/2b2PBr/rp1P2p1/R1rq2N1/Rb1bn3 w - - 0 1 illegal: No proof kernel
2RNrr2/2PpPb1k/1pp3N1/q4B1K/2BQr1nP/1Rbbbq1B/2b5/8 w - - 0 1 illegal: No proof kernel
6Q1/b5R1/NR2Nnn1/1nPK2Np/1PPBp1n1/q2rB1pr/r6k/5rr1 w - - 0 1 illegal: No proof kernel
6rB/qbNpKP2/7k/2p1q1rb/N1B2R2/p1PP3n/b1R2qNQ/b1q5 w - - 0 1 legal: proof: g4 b5 h4 f5 f4 g5 e4 fxe4 f5 gxh4 a4 Nc6 b3 Nd4 f6 Nf5 gxf5 bxa4 Ra3 axb3 Ra2 Bh6 Ra1 Bf8 Ke2 Kf7 Ke3 e5 d3 c5 Nf3 h5 Rg1 a5 Qd2 a4 Qa5 h3 Qd2 h4 Bb2 h2 Rg4 h1Q Qb4 h3 Na3 h2 Qb5 Ne7 Nb1 a3 Rg2 Rh5 Qa4 Bg7 Bc3 b2 Bd4 Bb7 Rd2 Rg5 Nc3 b1B Bh3 Qc1 Ne1 h1B Ng2 Qa5 Qc4+ Kf8 f7 Ng6 Qa2 Qa7 Na4 Nf4 Bc3 Bf6 Bg4 Kg7 f8N Nh3 Ne6+ Kh7 Nc7 Kh6 Bf3 Bg7 f6 Rg8 f7 Bf6 Qb2 Ba2 Bg4 Bh8 Be6 Bg7 Bc4 Bf6 Nh4 Bf3 Ng2 Bh5 Bd4 Qf1 Re2 Qf5 Rf1 Qf2+ Kd2 e3+ Kc3 e4 Rd2 Qg3 Rf4 e2 Be5 e1Q Bd4 Bd8 Bh8 Qef2 Re2 e3 Rd2 Bb1 Kb3 e2 c3 e1Q Rc2 Qc1 Bb5 Be7 Kc4 Bf6 Bc6 Be5 Kd5 Bg7+ Kd6 Ba2 Bd5 Bd4 Qb4 Be3 Ke7 Bd2 Qb5 Qge3+ Be6 Qe5 Qb2 Qfe1 Ne3 Qa1 Qc1 Qf2 Qh1 Bc1 Ng2 Bb2 Qg1 Qc1 Qh2 Qg7 Bb3 Ba1 Bc4 Qe5+
Kn6/q1kB1q2/b2b2N1/5q2/3rpNP1/1pp1P2R/P1RpnQ2/1B2bBr1 w - - 0 1 legal: proof: c4 c5 b4 g5 d4 cxd4 g4 a5 Bb2 axb4 Bc3 bxc3 Qd3 h5 f4 h4 Qg3 hxg3 fxg5 Ra7 Nh3 Ra4 Ng1 Ra8 h4 b5 e3 f5 Ke2 e5 Kd3 d5 h5 Kd7 h6 e4+ Kc2 f4 Kb3 g2 h7 b4 g6 d3 g7 d4 c5 d2 Kc4 d1Q Kb5 f3 c6+ Kc7 Rh2 b3 Rh3 f2 Ne2 g1B Nd2 d3 Rc1 Bd6 Nf3 d2 Rc2 Qe7 Nh4 Nf6 g8B Ra4 Nf4 Rd4 Bgc4 Qf3 Bcd3 Nh5 Nhg6 Ba6+ Ka5 Rf8 h8Q Ng3 Qf6 Ne2 Qf5 Bh2 Qf6 Bg3 Qf7 Kc8 c7 Kb7 c8B+ Kc7 Bd7 Bh4 Bg2 f1Q Qf6 Q1f2 Bf1 Qf7 Qf5 Qh2 Qf6 Be1 Qh4 Rh8 Qf2 Rf8 Rb2 Qhg3 Bb1 Qh4 Rc2 Qhe7 Ng2 Q3f6 N2f4 Qf5+ Nd5+ Kd8 Kb6 Rh8 Ka7 Rf8 Ndf4 Kc7 Rf3 Rh8 Rg3 Rh1 Ka8 Rg1 Rf3 Qee5 Rg3 Qc5 Rh3 Qa7+
5KbR/3R1R1b/2p3Pn/B7/prB1nrn1/Q2Pp1p1/1qP1k1n1/1N2b2N w - - 0 1 legal: proof: e4 g5 f4 b5 g4 b4 e5 d6 h4 gxh4 Qf3 dxe5 Qg3 exf4 a3 fxg3 axb4 Bh6 b5 Bf8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 h5 b3 f5 b6 a5 d3 f4 b7 h3 g5 f3 Bg2 c6 Ra4 f2 Ne2 f1N Nd2 h4 Bb2 h2 Bc3 h3 Nb1 Be6 Rg4 a4 Bd5 Nd7+ Ke4 Ne3 b8R Rh4 Nd2 Qb6 Rf1 h1N Ba5 h2 Bc4 Ndf6+ Ke5 Nh6 Rd4 Nf2 Nc3 h1B Ncb1 Be4 Rd7 Bh7 g6 Ng2 Re8 Rb8 Rc8 Bg7 Rh8 Nh3 Rf3 Nf2 Rf4 Beg8 Rf3 Nf7+ Ke6 Rd4 Rf4 N6g4 Rf6 Nfh6+ Rf7 Rd5 b4+ Kd4 b5 Ke3 Ne4 Rf5 Rd6 Rf4 Rd7 Qd4 b6 Qb2 b7 Bf8 Rc7 Ke2 Rd7 Nd1 Nf2 Nc3 Nh1 Bg7 Ba6 Bd4 Bc4 Bf2 Ba2 Be1 Bc4 Rf8 b8Q Rc8 Qb5 Rb8 Qb3 Rb5 Rc7 Rb4 Kd7 e5 Ke8 e4 Qa3 e3 Rcd7 Ne4 Ke7 Qd4 Kf8 Qb2
3qb1RN/1pK2Qrp/2P3nk/P1n2p1n/5N1q/2b3Nr/B1PR1n1p/6B1 w - - 0 1 legal: proof: d4 a5 h4 d5 f4 c5 dxc5 e5 b4 exf4 e4 axb4 h5 dxe4 h6 gxh6 Nc3 h5 Nb1 h4 Ke2 f5 a4 Kf7 g4 Kg7 c6 h3 g5 f3+ Ke3 f2 Kf4 e3 Ke5 e2 g6 e1N Bf4 b3 Nd2 b2 Ne4 b1Q Be3 h2 Ng3 Ne7 Qh5 Qb4 Bc4 f1N Nh3 Rg8 Nf4 Bd7 Ba2 Na6 Bg1 Be8 Rd1 Nc5 Rd3 Ra6 Rd2 Rb6 a5 Qa4 Qh4 Rb3 Qf6+ Kh6 Qf7 Qc4 g7 Ned3+ Kf6 Nf2 Ke5 Qa8 Kd6 Ng6+ Kc7 Be7 Ngh5 Rh3 Ng3 Bf6 Rd5 Bc3 Rd2 Rf8 g8N+ Kg5 Qe6 Rf7+ Ne7 Rg7 Qd5 Kh6 Qf7 Nh4 Neg6 Qe4 Nge2 Ng3 Nh8 Nh5 Ng3 Ng6 Nd3 Nd1 Nf4 Qc4 Be3 Qd4 Rg1 Qf6 Rgg2 Qh4 Bg1 Nf2 Rd8 Nd1 Rgd2 Nf2 Rb8 Bd7 Rf8 Be8 Rg8 Qad8+
3b3n/RN2r1P1/4n3/bBKpPp2/BnNpR1B1/1Q1Pp3/q4qb1/2n4k w - - 0 1 illegal: No proof kernel
4kbB1/1Pbp4/1qP1p3/2N5/Rr1n1P1Q/r2RNp1b/Kp1qB1N1/2b2r2 w - - 0 1 illegal: No proof kernel
4BN2/R2KnN2/2n1ppnr/1Rn5/3kP3/p1p2n2/1P1PQr1B/b1n1B2q w - - 0 1 illegal: Other
2Nb4/1brn1r2/Bp1q3B/2k1bR1p/1N6/2PKbP1p/2P2pnp/Q4NR1 w - - 0 1 illegal: No proof kernel
3B4/1B3P2/1qnP1RBp/n5k1/1p1P1nr1/3R1npp/N4p2/nNKbr2Q w - - 0 1 illegal: No proof kernel
1N4n1/3QPB1q/2nRqP2/RNk2P2/2q2Bq1/b3r2b/2K1nrq1/q2Nr1q1 w - - 0 1 illegal: Other
1knq1qrq/1P6/1R3P2/3NbN2/nqBrq1nQ/1q3qP1/2R1bR2/B2b1K2 w - - 0 1 illegal: No possible last move, all moves rejected
KBb1rn2/3b2q1/P1Pb4/N1Nb1b2/r3B3/qrq1k2P/NQ1r1R2/R1n3r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Ke6 e4 Ke5 a4 d5 a5 b5 c5 g5 h3 f5 c6 g3+ Kf3 d3 Ra3 Kd4 e5 b3 e6 g2 e7 b4 e8N g4+ Kf2 f3 Bf4 b2 Nd6 d2 Qe1 d1B Qe7 b3 Qb7 g3+ Ke1 f2+ Kd2 Qf6 Bb5 f1Q Qd7 Qf3 Nb7 Na6 Bd3 Ne7 Nc5 Ng6 Qe8 Bd6 Ra4+ Nb4 Bg5 f4 Qd8 Nf8 Na3 b1R Bc4 b2 Nd3 Na2 Ne5 Nc1 Nd7 Bc2 Ne5 B2f5 Nd3 Bfd7 Nc5 Rg8 Kc2 Ke3 Qb6 d4 Ne2 g1Q Bd3 g2 Be4 Qg3 Bh4 f3 Rh2 f2 Nc3 f1B Na2 Bc4 a6 Bd5 Qb5 Rg4 Ra5 Qgf3 Bg3 Rh4 Be5 d3+ Kc3 d2 Kb4 d1R Bg3 Rd2 Nc4+ Ke2 Qb7 Qa3+ Kb5 Qfc3 Kb6 Qgd4 Ra4 Qg7 Na5 Ke3 Be5 g1R Rf2 Rb8 Ka7 Rf4 Qb3 Rfg4 Qc2 Rb3 Bg3 Ra1 Ka8 b1B Be5 Rg5 Bg3 Re5 Qb2 Re8 Be5 Be7 Bb8 Bd6 Bf3 Bh7 Be4 Bhf5 Nb4 Qa2 Qc2 Qab2 Ra3 Rb1 Ra2 Ra3 Ra1 Ra4 Na2 Qba3 Qb3 Rbb2 Qc2 Rb7 Qb2 Rb3
2B2r1k/2bPRBn1/3r4/rP1N1b2/1r2QK1B/1qq2N2/r1nbn1bP/4b2R w - - 0 1 illegal: No possible last move
K1q1k1nB/1Bbq3n/Q5r1/2bqP3/Nn1P2b1/1Rnr1R1N/r2B2P1/1n3q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 Kf3 f5 b4 c5 e4 a5 d3 h3 b5 h4 b6 h2 b7 h3 Ra2 c3 Qd2 c2 Bb2 c1Q Qd1 a3 Qc2 c4 Qa4+ Nd7 b8B c3 Qb3 a4 Qc2 Bc5 Ne2 Rh6 Qd2 c2 Rg1 h1R Bc3 h2 Qd1 Rg6 Bg7 Nf8 Bd6 Nh7 Be7 Qd5 Rb2 a2 Ng3 a1N Bgf8 a3 Rb7 a2 Ke2 f3+ Ke1 f4 e5 f2+ Ke2 Bd6 Qe1 Bb8 Nc3 Bf5 Qd2 f3+ Ke3 Bg4 Bg7 Ra4 Be2 f1Q Nge4 f2 Bh8 Qcd1 Bf3 c1N Bb4 Nc2+ Kf4 a1B Qe2 Ra2 Na4 Bd4 Ng5 Bc5 Bd2 Nb4 Nh3 Qd7 Ke4 Qb3 d4 Qbd5+ Ke3 Qc8 Qd3 Ne2 Qa6 Nc3 Rb6 Qb5 Rf1 Qbd7 Rb7 Rg1 Rb5 h1Q Rb6 Nd3 Rb3 Nb4 Kf4 Q5d6 Bb7 Qd5 Re1 Rf1 Re3 Rd1 Rf3 f1N Qa7 Nb1 Qa6 Ng3 Ke3 Qf1 Kf4 Ne2+ Ke3 Nc6 Kd3 Q5d6 Kc4 Qd5+ Kb5 Nb4+ Ka5 Bcd6+ Kb6 Nec3 Be3 Rd3 Bd2 Bbc7+ Ka7 Bb8+ Ka8 Be7 Bc1 Bc5 Bd2 Bc7#
rN3k1r/b2Q1q1n/b5P1/2nr3b/q2n1PP1/N2qB2B/2Rr4/nB3KRr w - - 0 1 illegal: Other
K2R4/2Rb1rBP/1k2PQ2/3bq1b1/2bPrN1n/nq4qb/1R1N2Bn/2r4r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 c5 a4 b5 e4 f5 d4 g5 h5 b3 a5 b2 e5 b4 a6 g3+ Kf3 c3 h6 c4 h7 g4+ Ke2 c2 a7 c3 Kd3 b3 Kc4 f3 Kb5 g2 Ra5 f2 Be2 f1B Qd3 g3 Ra6 f4 Ra2 f3 Qe3 f2 Rh4 Qc7 Ra6 Nh6 Qe4 Be7 Rf6 Ng4 Bh6 c1Q Qg6 c2 Rf4 Nh2 Rf8 Qe3 Bc4 c1R Rh5 Bg5 Rh3 Nc6 Bg7 Ne7 Rf6 Nf5 Bf8 Nh4 Nd2 b1N Rf3 b2 Bg7 Na3+ Ka4 b1B Qd3 Kc6 Rf5 Rf8 Rf7 Bd7 Qf5 Ba2 Ne2 g1Q Nf4 Rae8 a8R g2 Rd8 Re7 Bb3 Bc4 Qf6+ Qd6 Ka5 f1B Bc2 Qb3 Be4+ Bd5 Rf3 Qf2 Rd3 g1R Ka6 Rh1 Ka7 Qg3 Ka8 Bfh3 Bg2 Ree8 Re7 Rf7 Rf3 Qb1 Rc3+ Bc4 Rc2 Qbb3 Rb2 Rg8 e6 Qe5 Nh5 Rgf8 Qg6 Rf4 Qf6 Re4 Nf4 Rf7 Rh8 Bd3 Rhe8 B3c4 Rd8 Be8 Ra7 Bd7 Rc7+ Kb6+
K7/BqPk1rNb/b4qrn/1n2P2B/3r1B1N/1nb5/2qPqRbQ/R2q4 w - - 0 1 illegal: No possible last move, all moves rejected
q7/1q2b3/nBqq1rq1/1N1krrP1/1PR1NKQ1/rb2R3/1N1qP3/n3qB2 w - - 0 1 illegal: No possible last move
bK2R3/N2rb1PQ/Rr2q2b/6r1/b1n1PnP1/1n5n/1k1Brb1N/3Br2R w - - 0 1 illegal: Other
2rQq1qN/KP3q2/b4Rr1/Br1r2Pq/P2k4/1n2b1rn/6qN/q2BR2B w - - 0 1 illegal: No proof kernel
qbKn1B2/2R1nB2/6b1/rn1P2qN/1RN1k1b1/qqq1P2Q/R6P/brq5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 a4 Kd6 d4 Kd5 a5 g5 a6 c5 a7 f5 Nh3 b5 Nd2 f3 Ke3 g3 Bg2 g4 Kf4 c3 Qf1 c2 Ra6 c4 Nb3 c3 Nf2 Ne7 Rf6 Bg7 Rf8 Nbc6 Nc5 b3 Bd2 c1Q Bh3 b2 Nb3 b1N Rf6 g2 Be3 g1Q Qe1 g3 Qf1 b4 Nd2 b3 Nfe4 c2 Qg2 b2 Ng5 Nc3 Nb1 Nb5 Na3 b1B Qf1 f2 Bd2 g2 Qd1 f1Q+ Nf3 Qe1 Be3 Qc3 Nc4 Q1a3 Nfe5 c1Q Qf1 Qb6 Bd2 Nd8 Nd3 Qc6 Kg5 f4 Be6+ Ke4 d5 f3 Nf4 f2 Bf7 Bg4 Nh5 Nf5 Rd6 Qd1 Rd7 Qdb3 Rc7 Rb8 Bf4 Qa8 Bd6 Rh6 Bb4 Ra6 Bf8 Ra5 e3 Bh8 Qe1 f1Q Qg3 Qf4+ Kg6 Qgc1 Qh3 Bd4 Re1 g1B Re2 Bf6 Rb2 Bf2 Ra2 Bg3 Rb2 Qb7 a8R Qfe5 Ra6 Qa8 Ra2 Qee7 Rb6 Rb7 Rd7 Bb8 Rc7 Nbd4 Rb4 Nb5 Kh7 Bh8 Kg8 Qef6 Bc5 Bc2 Kf8 Qg5 Ke8 Nh4 Rd7 Kf5 Nf4 Qd3 Qf3 Qba4 Nb6 Ba1 Qh3 Nd4 Nc4 Qdc3 Rb1 Rb3 Bf8 Nb5 Rc7 Be4 Nd6+ Ke5 Rbb2 Bg6 Nc4+ Ke4 Nh5 Nf5 Kd7 Rb4 Kc8 Qad1 Rf2 Rb1 Rfb2 Qdc2 Rb4 Qc3b3 Kd7 Qcc3 Kc8 Ne7+
4B1rq/2b1b3/brrr1NPB/k2P4/nr1R3N/2qP1Q1R/rRn1n2K/2b5 w - - 0 1 illegal: Other
1qrqBk2/rRQ3qq/2Pn3B/3R1b1R/1P4P1/3r2q1/2nbKN2/1qr2Nn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 h5 e4 f5 b4 d5 g4 a5 c5 f3 e5 a3 c6 f2+ Kd2 a4 e6 h3 e7 a2 Qf3 d3 Qg3 a3 Nf3 f4 Qh2 d4 Qg2 h2 Bb2 h4 Bc1 h3 Ng5 f3 Qg3 Bf5 Ne6 Ra7 Qe5 Nd7 Nc3 Ngf6 Ne4 Qb8 Qc7 Bh6+ Kd1 d2 Rg1 h1Q Rb1 a1Q N4c5 h2 Ba6 a2 Na4 Ne5 Ng5 Qg2 Nh3 h1Q Bb2 Ne4 Qb6 f1Q+ Kc2 d1R+ Nf2 Rd3 Bc1 Nd6 Nc5 Qg3 Nce4 Bd2 Bc8 Qh7 Bd7+ Kf7 Rb3 Rc8 e8R Kg7 Re7+ Kf8 Be8 Qe1 Nh3 f2 Rb7 f1R Qc7 Nf3 Rh1 Ng1 Nhf2 Qh8 Nf6 Qh7 Nh5 Qee7 Rc3 Qeg7 Rc5 Rd1 Rd5 Rf1 Ba3 Qe1 Bc1 a1N+ Kb1 Nc2 Rh4 Qf3 Ng3 Qee7 Rh5 Qd8 Kb2 Rd1 Nf1 Qg3 Ra5 Be1 Bh6 Rc1 Rd5 Bd2 Rh4 Rc3 Rh5 d3 Rdb5 Be3 Rd5 d2 Rg5 d1Q Rh5 Rc4+ Kb3 Rd4 Kc3 Bd2+ Kb2 Qe1 Nh3 Qee5 Nf2 Be3 Kc3 Qef6 Rc5 Qf7 Re5 Qa2 Ra5 Qb1 Rd5 Re4+ Kd3 Bd2+ Be3 Nf3 Bg5 Rd4+ Ke2 Rd3 Bh6 Ng1#
1b3qQ1/P1r3PN/2bb4/4nk2/qbB4n/b2KRn1N/1Pr3B1/RrBb2r1 w - - 0 1 illegal: No proof kernel
BR1N1Q1N/1PN3Bn/bb4n1/5b2/rKbbn3/1b2q1P1/P1R3r1/bb2k1r1 w - - 0 1 illegal: No proof kernel
n2r3R/3knR2/2q1Rb1q/1N5P/bbB2BrK/2Q2P1n/1qq1NP2/1b3n1q w - - 0 1 illegal: Other
kb2n2R/2nbKQ1B/3N1B2/3PPn1b/1n1bq3/1Pr4r/rq3BN1/5rbR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 e4 Kc6 h4 Kb7 d4 f5 d5 c5 h5 g5 e5 a5 h6 c3 b3 c4 h7 c2 Bh3 a3 Ke2 f3+ Ke3 g3 Kd4 g4 Nc3 a4 Ne4 g2 Nd2 a2 Qe2 a3 Qf2 g3 Qf1 f2 Rh2 f4 Ne2 g1B Bd7 g2 Nf3 c3 Ne1 f3 Bh3 Bd6 Be3 c1Q Bg5 c2 Be7 Na6 Nf4 Nf6 Ned3 Bb8 Nh5 Qb2+ Kc4 c1R+ Kb5 Rc3 Ng3 Nc7+ Kb4 Nfe8 Nf5 Bd7 Qb1 f1N Ng7 f2 Rh1 Ng3 Nf4 f1B Nf5 Bd4 Bc5 g1B Ng2 Be2 Qf1 Qh4 Rc1 Ra6 Nd6+ Ka8 Qf7 a1N Bf5 a2 Rh2 Qe4 Bg6 Rg8 h8B Nf5 Bh7 Bh5 Bf6 Rgg3 Rh4 Rh3 Re1 Bge3 Rh1 Bg1 Bb6 Rce3 Kc4 Nc2 Bc5 a1R Ba7 Bc3+ Kc5 Rf1 Bb6 Ra2 Ba7 Be6 Kc6 Reg3 Bf2 Bc8 Kc5 Bd4+ Kc6 Ba6 Kd7 Nb4 Kd8 Rc3 Kd7 Bb5+ Kd8 Nh6 Ke7 Ba4 Rg4 Bb5 Rg8 Bd7 Rh8 Nf5+
4qr1n/K2b1P2/P1rn4/q4B2/R2Nb1nP/Q1r1k3/BR2nNnb/2b1B1r1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 a4 e5 c4 b5 a5 d5 c5 g5 c6 e3 Kd3 e2 a6 e1N+ Kd2 Ke4 c7 g3 f5 d3 f6 d4 f7 g4 Qc2 g2 Ra4 b3 Rh3 b2 Ne2 g1R Na3 b1R Bb2 g3 Rc4 g2 Rh1 b4 Qc1 b3 Rc3 Rh6 Rc5 Rc6 Qd1 Bh6+ Nf4 Nd7 Qh5 Rc1 Rd5 Nf8 Qd1 R1c3 Nb1 Ng6 Qc2 Qe8 Rb5 Nh8 Rh2 Nf6 Rh1 Bd7 c8B Ng4 Ba1 b2 Na3 b1B Kc1 Ke3 Kb2 d2 Bc4 e4 Ba2 d3 Nh3 d1N+ Kc1 Ndf2 Kb2 d2 Qa4 d1Q Rb4 Bg5 Rh2 Qd5 Nb5 Qf5 Nd4 Qa5 Qa3 Nc2 Nb5 Nd4 Ra4 Ne2 Nd4 Qee5 Bb7 Rf8 Bc8 Bh6 Qb4 Qe8 Qa3 Nh1 Nf2 Nhg3 Qb3 Nf5 Ka3 Nd6 Bb2 Rd3 Bc3 Bg5 Be1 Rdc3 Nh1 Rf1 Nf2 g1B Rg2 Bd3 Nb5 Bh2 Nd4 R3c5 Qb2 Rg1 Kb3 Rc1 Qa3 R1c3+ Kb2 Kf4 Bb3 e3 Nd1 B7f5 Bd2 Ng3 Ba2 Rc1 Kb3 Bde4 Bb4 Bh6 Rb2 e2 Nf2 e1N Bd7 Ng2 Be1 Ne2 Be6 Qad8 Kb4 R1c3 Bd7 Qg5 Ka5 Qh5 Nb3 Kf3 Bc8 Bc1 Nd4+ Ke3 Bd7 Rc5+ Kb6 Rc6+ Ka7 Be6 Bc8 Qa5 Bd7 B6d5 Bf5 Be6 Nb5 Bc8 Nd4 Bd7
5Rq1/R1q2b1n/N4r1B/Qq1N2Pr/1rBnB1P1/1bK1bb2/1r1P2kn/2q5 w - - 0 1 illegal: Other
nN2b3/1q3Pb1/q1q1PR2/5rNn/rPBQ1R1b/7n/r1k2B2/2nbR1rK w - - 0 1 illegal: No proof kernel
7R/1q2K3/2rb3N/1n1qbPp1/nr2P3/qQrqk1N1/2PRbn1N/1q3BB1 w - - 0 1 illegal: No proof kernel
n1RNK2n/1rB2bQR/Nqn3q1/qk1P1P2/2qB4/1P3b2/r3p1B1/q1r1b3 w - - 0 1 illegal: No possible last move, all moves rejected
4nB2/r1bq3N/Bb1nb2q/2P2kNq/Q2p3R/1P1Pn3/2r5/nNrnK2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 f5 gxh4 f6 c5 b3 c4 d3 c3 Qd2 exf6 Qh6 f5 Qd6 f4 Qa3 Be7 Qa2 Bf8 Qb2 cxb2 c4 Ke7 e4 Kf6 g4 d5 Nd2 b1N Nh3 a5 Be2 h5 Ra2 a3 Kd1 f3 Nf1 a4 Bd2 f2 Ne3 f1R+ Be1 Nc6 Nc2 Na5 Na1 Nb7 Bf3 Qd7 Rg2 a2 Rc2 a3 Rg2 Nd6 Rc2 Nc3+ Kd2 Ra7 Rh2 Nd1 Nf4 h3 Ng6 h4 Rg2 h2 Nf4 h1Q Rc1 h3 Ne6 h2 Nc2 a1B Ng5 a2 Na3 Be5 Nb1 a1N c5 d4 Bg3 Be7 Bh4 Bg3 e5+ Kg6 e6 f5 Ba8 f4 Bb7 f3 Ba6 Bd8 e7 f2 e8Q+ Kf6 Rg1 Bb6 Ke2 Qd5 Rh1 Rg1 Rc2 f1N Rc1 Be5 Ke1 Q5f7 Rc2 Qh5 Re2 Rg2 Re4 Nfe3 Bg3 Rc2 Bf4 Qc7 Qa4 Be6 Bg3 Qd7 Bf4 Ndc4 Bg3 Bb8 Bd6 B8c7 Bf8 Rh6 Nh7+ Kg6 g5 Kf5 g6 Nf6 g7 Ne8 g8N Ncd6 Ng5 Rh7 Nf6 Rf7 Rg1 h1Q Nfh7 Qh6 Rg4 Q1h5 Rh1 Rc1 Rgh4 Rg7 Nf3 Rg2 Nfg5 Rgc2
4KbNr/3nr2n/1B4PR/rknq4/1n2Pn2/P2N1b1q/1bN1B1p1/RqQ5 w - - 0 1 illegal: No proof kernel
2R1qn2/b2b1P1Q/P1N1B1R1/2kqb3/q1rp1r2/1P5K/4nB1n/rbNN2b1 w - - 0 1 illegal: No proof kernel
4nknB/1B1Qb1rR/rp6/2nb1P2/1rn2P1b/N5NP/1Nn5/1nR2nqK w - - 0 1 illegal: Other
N2n4/1q1r2b1/2b2qRP/pbQ3P1/nrb1bb1N/B2B2RR/k1nP4/3b1K2 w - - 0 1 illegal: No proof kernel
1K3bBn/2Q2p1b/1Rbn1r1k/P3P2N/N3bPb1/n2rr3/1qB5/1Rrr2N1 w - - 0 1 legal: proof: d4 a5 Kd2 c5 h4 cxd4 b4 axb4 h5 e5 h6 e4 Na3 e3+ Kd3 gxh6 Nb1 h5 Bd2 exd2 Rh3 h4 Rh2 Nc6 Rh1 Nb8 Kc4 d5+ Kb5 h5 a4 h3 c4 h4 g4 b3 f4 d3 e4 b2 g5 d4 e5 h2 c5 h3 a5 Nc6 g6 Nge7 g7 Ng6 g8N Nce7 c6 Bg4 c7 Qb8 Kb6 Nf5 c8B Nd6 Ne7 Ra6+ Kc5 b5 Nc3 b1B Qc1 d1R Be2 b4 Qd2 b3 Nb5 b2 Nf5 Rc1+ Qc3 d2 Ne7 d1R Nf5 d3 Bb7 d2 Bd3 Rh4 Ne7 Nh8 Bh7 Rh6 Bg8 Bh7 Nf3 b1N Nf5 Na3 Ng1 Rc6+ Kd5 Rf6 Ng3 Ke7 Qc2 Rc3 Rb1 Re3 Nc3 Ke8 Ba8 Qb2 Kc6 Ke7 Kc7 Ke6 Nge4 Kf5 Na4 Kg6 Ng3+ Kh6 Qc4 Rcc3 Qc5 Rcd3 Nh5 Rc1 Be4 d1R Qc6 R3d2 Bc2 Rd5 Nf3 R5d3 Re1 h1B Ng1 h2 Qc3 Nab5+ Kb8 B1e4 Qc7 h1B Rf1 Bc6 Rf2 B1e4 Rd2 Ra3 Rd4 Rac3 Rb4 Na3 Rb6 Rcd3
3n3B/2R3RB/1bPPNrq1/1k2r3/nnnpNqn1/1r4q1/2n3bP/1K3Q1R w - - 0 1 illegal: No proof kernel
3R2r1/1K5k/1P1Pn2P/1b2R1r1/Qr1rqp1b/1rq5/B2NNb2/1nRrB1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 g5 h4 a5 d4 c5 e4 f5 b4 Kf7 d5 Kg6 e5 f3 Ke3 f4+ Ke4 g3 e6 g4 e7 c3 e8R a3 b5 c2 h5+ Kh7 b6 a2 h6 a4 d6 f2 Kd5 a3 Nh3 g2 Be2 f1R Ng1 g3 Bb2 c1R Qb3 c4 Qc3 Bd7 Re5 Nc6 Nh3 g1N Bh5 g2 Qb3 c3 Re3 c2 Re6 Nd4 Nf2 Ra5+ Qb5 Rfd1 Nd3 Nf6+ Kc5 Nd5 Rf6 Be7 Rf5 Rg8 Be8 Bh4 Rg5 Qa8 Bf7 Nc3 Rd5 Ne6+ Kc4 Rd2 Nb4 Rcd1 Rc5 c1R Nc2 Qe4+ Nd4 Rcc2 Bc1 Rb2 Qa4 Rb3 Re5 Rd3 Nd2 Nb1 Bb2 Rd5 Bc3 Rdg3 Bb4 R3g5 Ba5 Rf3 Bc3 Nc7 Qb4 Rc1 Nf1 Nh3 Nh2 g1B Qb5 Re1 Bd2 Bgf2 Rf1 Rfe3 Nf3 Ng1 Kb4 Rc3 Ka5 Rec1 Ne2 Rd4 Bd5 Ne6 Ka6 Re1 Qb4 Bb5+ Kb7 Rcc4 Qb3 Rb4 Bc3 Red1 Qc2 R1d2 Rc1 Rd1 Be1 Nc3 Rab1 a1R Qb3 Ra2 Ra1 Rb2 Nd2 a2 Qa3 Nb1 Rc8 Nc3 Rc1 a1Q Rd8 Nb1 Qa4 Qa3 Ng3 Qc3 Ne2 Qed3 Ba2 R2b3 Re8 Qdc2 Rd8 Qe4+
b4Rn1/2K1b1nP/2Nqq1P1/1N3b2/2PnNR2/2B2nnp/1r2q3/3QrBkn w - - 0 1 illegal: No proof kernel
1qbN4/B3b1Rp/1P3r2/q1N2Q1K/r1r3P1/2nPR3/n1R1nqnn/1n2kB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 e4 Ke5 g4 Kd4 b4 c5 d3 a5 e5 f5 b5 c3 b6 c4 e6 h3 e7 a3 e8R h2 Re5 a2 Be2 a4 Re8 c2 Bd2 c1N Qe1 c3 Qg3 c2 Nh3 a3 Rd1 h1Q+ Qg2 Qg1 Re7 Nf6 Qf1 Na6 Rf7 Be7 Qg2 Nb4 Be1 Ne4 Rf6 Nc3 Rc6 Rf8 Rf6 Ra4 Rc6 Rf6 Bf1 N1e2 Nf2 c1R Qg3 Qd6 Rd2 Qb8 Nh1 Qe3+ Kg2 f3+ Kh3 f2 Kh4 f4 Rd1 f3 Nd2 Qef4 Qh2 Ke3 Ne4 Rc2 Rac1 a1N Ng5 a2 Ne6 Nb3 Rc7 a1Q Nd8 Nba2 Kh5 Nd2 Ng3 Ndb1 Ne4 Qg3 Nc5 Qg1 Bg2 f1N Bg3 f2 Re1 Kd2 Bf4+ Ne3 Bf1 Qg2 Qh4 Qf3 Qg5 Qg2 Qf5 Qf3 Bg2 f1N Rb7 Nh2 Bf1 Qf2 Bc7 Qa7 Bb8 Ng2 Rc7 Qa5 Ba7 Qb2 Rb7 Qbb4 Rc7 Qbf4 Rd7 Qb8 Rb7 Ng1 Re3 Nge2 Rd7 Ne4 Rb7 Rcc4 Rc2+ Ke1 Rc7 Nec3 Rb7 Bf8 Rg7 Be7
4NB1Q/1NbP3b/q3P3/n1rB2PB/K3n2r/2Rn1rr1/1rr3pR/2qk1b2 w - - 0 1 illegal: No proof kernel
5Nr1/nRBPkn2/qNPb2qr/4rrr1/3QB1bR/1P4qr/1pb5/K3B3 w - - 0 1 illegal: No possible last move, all moves rejected
brB2nR1/3P1p2/nn5b/1QRnN2K/2r2N1P/3bNn1n/1qr1P2q/2B1k3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 d4 Kd5 h4 Ke4 d5 b5 d6 c5 d7 g5 a5 b3 a6 c3 a7 b4 Nf3 b2 Qb3 c2 Na3 b1N Qa4 c4 Bd2 c1Q Rg1 c3 Bh3 c2 Kg2 g3 Bc3 Ke3 Qa5 b3 Rd1 b2 Rf1 g4 Bg7 Nd2 Rb1 Nc4 Qh5 Ne7 Rf2 Na6 Nb5 Ng6 Rf1 Nb6 Ne1 Kd2 Qf5 f3+ Kg1 g2 Kf2 g1N Kg3 f2 Nd6 Nf3 Qe6 Qc7 Nd3 Bb7 Nf4 Rb8 Bh6 Ba8 Qe5 Rc8 Bg5 Bh6 Nf5 Nf8 Bg2 Rb8 Ra1 b1B Ne3 Qb2 Ra5 c1R Rc5 Bd3 Rg1 Rc2 Qd5 Qce5 Qb3 Rg8 Qb5 Rg6 Bh1 Rd6 Bg2 Rd4 Bh1 Rdc4 Bg2 Ne1 Bb7 Nf3 Rg2 Ke1 Bc8 Bd5 a8N Qd6 Nc7 Ba8 Ncd5 Qc7 Ne7 Qce5 Rg1+ f1N+ Kg2 g3 Kh3 g2 Kg4 Qc7 Ng6 Qd6 Kh5 Qc7 Rh1 g1N Ne5 Nh3 Rg1 Qd6 Rg2 Qc7 Ned5 Ne3 Rg4 Nd1 Ne3 Nc3 Rg3 Bg7 Bh6 Ncd5 Rg6 Qd6 Bg5 Bh6 Rg8 Qc7 Ne6 Nhg1 Ng6 Nd4 Ng4 Rb4 Bc1 Ndf3 Ne3 Qh2 Nef4 Rbc4 Ne5 Nh3
1K1Nn3/6rr/1P1k1P1r/b2b2nQ/1b1b1qrP/1r1BBRq1/2b2p2/3N1RB1 w - - 0 1 illegal: No proof kernel
n1qr3N/b2r1b1q/8/K2Bnq2/6QP/1P1NB2N/kb1pP1bR/bR1nn3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 c4 Ke6 h4 f5 c5 Kd5 c6 Kc4 c7 d5 Nh3 g5 Qe1 Kb3 Kd3 a5 Qf2 g3 Qe1 g4 Qd2 a3 Rg1 f3 Rh1 a2 Nc3 f4 Rh2 f2 Bg2 f1B Nd1 f3 Qe3 a4 Qe8 a3 Ng5 f2 Nf3 Na6 Qe3 Nf6 Qf4 Be6 c8N Bf7 Bh3 g2 Qc7 g1N Qg3 Bg2 Kd2 f1Q Ne7 d3 Qe1 g3 Be6 Ra7 Nf5 Rd7 Rh1 Nc7 Nfe3 Bg7 Nc3 Ng4 Nc4 d4 Na4 Ne5 Rb1 a1B Bf5 a2 Nd6 Qc8 Rh3 Na8 Be4 Rhd8 Ng5 Qf5 Rh2 Bh8 Nh3 Ngf3+ Kd1 d2 Qg1 Ne1 Bd5+ Kb4 b3 Bg7 Rb2 Ka3 Rb1+ Bb2 Nc5 a1B Nd3 Ka2 Qf1 Bh6 Qf3 Be3 Qg4 Bf3 Qf4 g2 Qe4 g1Q Qg4 Bg8 Nf7 Bg2 Nh8 Bf7 Nc5 Qgf1 Nd3 Qh7 Nc5 N1d3+ Kc2 d1N Bd2 Bg1 Be3 Ne1+ Kd2 Qf6 Nd3 Qff5 Bf2 Bg6 Ndf4 d3 Ba7 Ba3 Bc5 Nb2 Kc3 d2 Nd3 Be8 Ndf4 Bf7 Nd3 Nc6 Bf2 Nd1+ Kc4 B3b2 Kb5 Ne5 Ka5 Ba3 Bc5 Bgd4 Bb6 Bdb2 Bf2 Bc5 Be3 Ba7
B1Rq1K2/1Rq5/3rr2k/6bq/1p3R1P/2P1N1rb/1B1Pr2n/Nbnq1q1Q w - - 0 1 illegal: No proof kernel
1b1n2r1/2b1r1Nn/1Rbq2qr/B1p2r2/P3B2k/n4rR1/1PbP1N2/1N4QK w - - 0 1 illegal: No proof kernel forced: bxDB
1K2R3/1n2r1n1/n2k1qn1/PqqN1B2/bP1B1b1p/2bP4/2RN3n/2rQb2R w - - 0 1 illegal: No proof kernel
B2n1q2/RqBN2b1/2b2n1p/rN4k1/1b1n1R2/Pn1P1K2/n2q2P1/1rQ1b2B w - - 0 1 illegal: Other
3b4/K2kq2N/q2r1Pn1/3P4/rnbN2r1/1Bn1P1rb/1B1Qp2n/RB3Rr1 w - - 0 1 illegal: No possible last move, all moves rejected
n2n1RNK/nb4b1/nn1P4/k1qQ4/2R2B1r/2rpP2N/1q1r1r1P/1BB4b w - - 0 1 illegal: No proof kernel
Nb2N1R1/1nq1bKB1/Q1PPb3/P2rNRq1/1k6/r4B1q/q6p/1qb1nr2 w - - 0 1 illegal: No proof kernel
q2n1b2/4Nb1P/2q1Pn2/3Qbpnb/4r1N1/Kb2P1RR/BN2q3/1qBrk3 w - - 0 1 illegal: Other
1r3nbr/1b3Pn1/3RPp2/Q2r2kN/2K1rNnq/2P1bR2/4B2n/B3q1Rn w - - 0 1 illegal: No proof kernel
B1r1b1nN/2r2p1K/R5n1/3qbb2/1nBBk1P1/Pq4br/1Q2Pr1R/2b1N3 w - - 0 1 illegal: No proof kernel
N7/2n1PB1b/2p2nqP/1b4Qb/1n2rr2/1Rr1PqrR/NK1B1k2/1bR3b1 w - - 0 1 illegal: Other
R4Q2/3P3b/n1N1R1bp/1rr1B2N/2P1n2B/qB1Pbrr1/K4k2/3q1rnb w - - 0 1 illegal: Other
N2K4/2RP2R1/q1r1b1P1/1b1r1NP1/1n2BQ1r/1N2qqrp/2b1n3/2B1bk1r w - - 0 1 illegal: Other
q1rB1r1R/1qnpr2P/Q1b2BN1/2K4q/1R4P1/4r1b1/q1bP3k/1BqnN3 w - - 0 1 illegal: No proof kernel
1B1b1qB1/2P3nq/1RQp1rP1/bBq3nb/1NNP4/7k/r1qn3n/K2Rn3 w - - 0 1 legal: proof: h4 c5 e4 a5 b4 f5 h5 fxe4 h6 c4 Bb2 axb4 Qf3 gxh6 Bc1 h5 Qh3 h4 Qb3 cxb3 Kd1 Kf7 g4 Ke6 f4 h5 d4 b5 a4 d6 c4 e3 g5 Kf5 a5 Kg4 c5 e5 c6 e4 c7 e2+ Kd2 e1B+ Kd1 h3 g6 e3 f5 b2 Kc2 h2 a6 b3+ Kd3 h4 a7 b4 f6 h3 f7 e2 Bg5 Ne7 Bh6 Nf5 Ra4 Be7 f8Q Nc6 Qg7 Rb8 a8B Rf8 Ra3 Ne5+ Ke4 Nf3 Kd3 Ng5 Kc4 Rf6 Qg8 Ng7 Nc3 b1Q Ra2 b2 Kb3 Qf5 Qh7 b1N Kb2 b3 Ra3 Nd2 Bb7 Qf8 Ka1 Bd8 Nf3 Qc5 Bd5 Rb7 Bg8 b2+ Ka2 b1N Nd5 Rb2+ Ka1 Kg3 Ra6 Bg4 Rb6 Bh5 Ne5 Ndf3 Nb4 Nbd2 Qh8 Kh4 Rg1 h1Q Nc4 h2 Qh7 Qg2 Rh1 Nf5 Qd7 Kh3 Qc6 Ng7 Rg1 Bh4 Rh1 e1N Rg1 h1Q Be2 Nd3 Rd1 Nde1 Bf1 Nh2 Be2 Ndf1 Bd3 Qc2 Be2 Nf7 Bd2 Ng5 Bc1 Nd2 Bd3 Rb3 Ba3 Rb2 Ne3 Ng2 Bb5 Be1 Nc4 Nde4 Nd3 Ba5 Nb4 Nd2 Nd3 Qe5 Bc5 Ne1 Nb4 Qef5 Rb7 Qe5 Ba7 Qc5 Rb6 Qhe4 Bf7 Qee7 Bd5 Qef7 Bb8 Q7g8 Bf7 Qh7 Bg8 Ra2+
K2R1q2/RprB1P2/1N1knn2/1b2r3/1rnP1bN1/2Pn2Bq/1b2n1r1/2Q1N3 w - - 0 1 illegal: No proof kernel
q2bR1Kb/1bN3p1/P2n1rPn/1QB3Rb/N1b5/1r2br2/kBP5/r3B2r w - - 0 1 illegal: Other
1n3K2/3Q1PN1/Bb2N2B/1Pn2b2/B2Rb1q1/2n2P1k/rbnbpnR1/4r2n w - - 0 1 illegal: Other
1bqr4/BK1P2bR/Q2r1PrB/4r1Rb/p7/1b1nR3/P1nk1N2/bb1rN3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxe4 h5 bxc4 h6 f5 Be2 f4 Qc2 f3 Kd1 gxh6 Qb3 fxe2+ Kc2 h5 Kc3 h4 Qd1 Bb7 Kc2 Bc8 g4 Kf7 Kc3 Kf6 Kb4 Ke5 Kc5 Kf4 b4 e1B d4+ e3 d5 a5 f3 e5+ d6 h5 b5 a4 b6 h3 g5 e4 b7 h2 g6 c3 g7 h4 Na3 c2 Nb5 h3 Qd5 Be6 Nd4 Bg3 Qb3 Qc8 Nc6 Nh6 g8R Nf5 Qa3 Bg7 d7 Bb3 Rf8 Rh6 Nb4 Na6+ Kb5 c5 b8B+ Rd6 Nc6 c4 Kb6 c3 Bd2 c1B Qb2 c2 Rf6 Nb4 Ba7 Nd3 Bb4 e2 Bd2+ e3 Ba5 e1R Bc3 e2 Re6 Ne3 Bf6 Rd1 Qb1 e1R Be7 Bcb2 Bf8 c1R Re5 Rc3 Rg5 Nc2 Qc1+ Re3 Qd2 Rc5 Qa5 Ree5 Qa6 Ke3 f4 Kd2 f5 Rg6 f6 Rcd5 Rc1 Rd6 Rb1 Ba1 Nf3+ Ke2 Ne1 Kd2 Rg1 Bf4 R1g3 h1B Re3 h2 Rc1 Bf3 Rb1 Rdd5 Nb4 h1B Rb2 Bh5 Rb1 Nb2 Nbd3 Be4 Nf2 Nd3 Rb2 Qc4 Kb7 Rd8 Rb1 Qc8+ Kb6 Bh8 Bh6 Bg7 Rb2 Rf5 Rb1 Bb8 Rc1 Rfe5 Rb1 Qc3 Kb7 Rd6+ Qc6 Ndb4 Rf5 Be2 Ned3 Re1 Rg5 Nd4 Rc1 Bf5 Qa6 Qc5 Rc4 Rd1 Ne1 Bfc2 Rh3 Bf5 Rcc3 Bb1 Rce3 Ndc2 Rhh5 Nd3 Rh1 Bh8 Bf8 Qc3 Rh7 Bh5 Bh6 Bg7 Bb6 Qc5 Ba7 Qc8+
1rR3qB/nqNQ4/q1qbb3/r3bPn1/1p3R1n/1rPN2kP/K7/1Bb3N1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 f4 Kf6 a4 Kf5 c3 b5 Kc2 g5 Kb2 e5 a5 d5 a6 e3 h3 d3 a7 b3 Rh2 g3 Re2 d4 Qe1 g4 Qd1 e4 Na3 g2 Rb1 d2 Nf3 g1N Re1 e2 Ra1 d3 Rb1 g3 Nc2 e3 Na1 g2 Ne5 Nc6 Nf3 Nf6 Ng5 Qb6 Ne6 Qa6 Nd8 Nh7 Nb7 Nf3 Qc2 d1Q Qd2 g1Q Bg2 Nhg5 Qc2 Nh4 Bd2 Be6 Rc1 Ba3+ Kb1 b2 Qa4 b4 Bd5 Rhb8 Qb5 Qda4 Ka2 b1R Nc2 Rb3 Nc5 Qg4 Rf1 e1B Rd1 e2 Be3 d2 Nd3 Bg3 Bd4 e1B Bh8 Bh2 Qb7 Beg3 Nce1 Q4b5 Qe7 Qbb7 Qd7 Qf3 Ra1 d1Q Rf2 Qg4 Nf3 Qh1 Ng1 Qhf3 Bc4 Ke4 f5 Bd6 Rff1 Bhe5 Bd5+ Ke3 Be4 Qh1 Rf4 Qhf3 Nc5 Kf2 Bb1 Kg3 Nd3 Nd4 Bc2 Nb5 Re1 Qfc6 Bb1 Qh5 Ree4 Qf7 Rc4 Qg8 Rc5 Rd8 Rcc4 Rab8 a8N Na7 Nc7 Ra8 Qf7 Rdb8 Qd7 Qaa4 Ne1 Qd5 Ka1 Nc6 Nd3 Ra6 Rc5 Na7 Ne8 Qab5 Rc6 Ra5 Rc8 Qdc6 Ka2 Q5a6 Nc7 Bc1#
rn1B4/RBq2r2/1b4qn/5pNN/r3N1PR/1P3QPK/n1b4r/qqb1k3 w - - 0 1 illegal: Other
qB1Rqn2/1rqNn1P1/3N3R/4P1r1/2n1Q1np/B1b5/b1Rrb2P/2K1bk2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 g5 b5 gxf4 e3 e5 b6 e4 Be2 axb6 Bg4 b5 Be2 b4 Bf3 exf3 d4 Ke7 Kd2 Ke6 g4 Kd5 a4 Ke4 g5 h5 a5 b5 a6 f5 g6 c5 d5 f2 a7 f1B d6 h4 g7 f3 d7 c3+ Kc2 c4 Ra6 f2 Rc6 f4 Rd6 f3 Qe2 b3+ Kd1 b2 Qe1 c2+ Kd2 b4 Qd1 b3 Nh3 Rh5 Rd3 Ne7 Rc3 Rg5 Rg1 Qe8 d8B Be2 Re1 f1Q Nf4 f2 Nh5 Kf3 e4+ Kg2 e5 Be6 Na3 b1R Ba5 b2 Re3 Nd7 Re4 c3+ Ke3 Rd8 a8R Qh1 Bb4 f1N+ Kd4 Ba2 Rf4 Ne3 Rf6 Ng4 Rh6 Kf2 Rb8 Qa8 Nb5 Kg2 Be3 c1B Nf6 c2 Nd6 Bd2 Ba3 c1Q Qa4 Qc7 Rc1 Be1 Rc2 Kf1 Qc6 Ra1 Qe4 b1N Bg1 Nd2 Bf2 Rb1 Be3 Qcb7 Kc3 Qc7+ Bec5 Rb7 Rc8 Nb6 Kb2 Ndc4+ Kc1 Rd7 Rd8 Bc3 Nf7 Rd2 Nd6 Nd7 Ba7 Ng8 Nf5 Bfb4 Bb8 Nf8 Nd7 Ne7 Nd6 Bc5 Nc8 Bf2 Nd6 Be1
4R1b1/1q1B1nPk/1Q1N1r1q/1nPr1q1b/3p1R1B/Pr2qb2/3b4/Kn4BN w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d3 g4 Kf7 f4 Kg6 c4 b5 g5 h5 c5 e5 a3 d5 Bb2 d4 Kc1 d2+ Kc2 h3 Rh2 e3 Qe2 d1B+ Kc1 e4 Qg4 e2 Rh1 e1Q Rh2 b3 Rg2 h4 Rg3 h2 Bg2 h1B Qe2 h3 Rf3 b4 Bc3 e3 Kb2 h2 Rh3 Ra6 Qc4 e2 Qd5 Rh5 f5+ Kh7 f6 Qe7 f7 Nh6 Ra2 Rf6 Re3 Qb7 Bd2 Qf2 Nc3 e1Q Rf3 Na6 Nge2 Be6 Ne4 Nc7 Qd6 Nb5 Ka1 Bd5 N2g3 b2+ Kb1 Qee2 Qb6 Bd6 Re3 Bf4 Bh3 Bg2 Bc1 h1Q Nd6 Qef3 Re8 Be2 Kc2 b1R Bd7 Qh4 Be3 b3+ Kd2 b2 Kc2 Qf1 Bg1 Qh3 Ra1 Bd2 Nh1 Qe3 g6+ Kg7 Bf2 Be6 Bg1 Rd5 Re7 Kh8 g7+ Kh7 Re8 Qff5+ Ne4 Rg6 f8B Bg8 Be7 Nf7 Bf6 Qhh6 Bh4 Bh5 Ra2 Bc3 Kb3 Rf6 Nd6 Be4 Ra1 Bd2+ Ka2 Rc1 Rb1 Rc3 Rf1 b1N Rf4 Bef3 Ka1 Rb3
5BRn/qb1P1q1k/1qb1N1N1/3K1P1N/2rb1Qn1/2rnRr2/p5P1/1q3n1B w - - 0 1 illegal: Other
2r1QKn1/n1qP1B1k/p1bq1q2/2n4b/r2NN1N1/1nBrP1R1/5b1P/R6q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 g5 b4 f5 d4 Kf7 d5 Kg7 d6 c5 b5 g3+ Kf3 g4+ Kg2 c3 b6 c2 b7 c4 Qe1 a3 Qd1 a2 Be3 c1N Qd5 c3 Qb5 c2 Nd2 Kh7 Qe8 Nd3 Nb3 c1Q Nd4 Nc5 Qb5 Nc6 b8N Bd7 Rb1 a1N Nc2 Nab3 Nh3 f3+ Kg1 f2+ Kg2 f4 Rg1 f3+ Kh1 a6 Rg2 Na7 Bd4 Bc6 Nd7 Rc8 Ne5 Qa3 d7 Qc7 Bc3 Bh6 Qb7 Be3 Qa8 Qb4 Rd1 Qd4 Rc1 Qdd6 Ra1 Bd4 Rg1 Be3 Bg2 f1B Nd4 Bf2 e3 Bd3 Bf1 Bg6 Bc4 Bh5 Be6 Rb8 Bd5 Rb4 Bf7 Ra4 Qc8 Ne7 Qa8 Rc8 Qb8 Ng8 Ng5+ Kh8 Ne4 Kh7 Ng6 Be1 Rg2 f2 Ne5 f1Q+ Rg1 Qff6 Kg2 Rf8 Qe8 Bf2 Kf1 g2+ Ke2 g3+ Ng4 Qg6 Kf3 Qh6 Qe7 Rc8 Qe5 Qhf8 Kf4 Qfe7 Kf5 Qh4 Rgd1 g1Q Qe8 Qh1 Rg1 g2 Rgf1 Bg3 Rf3 Bf2 Rh3 Qhe7 Rg3 Qf8 Kg5 g1R Kf5 Rd1 Kg5 Rd3 Kf5 Nh6+ Kg5 Qd5+ Kf6 Qg7+ Ke7 Qf6+ Kf8 Ng8 Rf1 Qde6 Ra1 Qed6+
1q2qknB/1P1b4/R2p1r2/2b2Q1B/2bPR1P1/BN4nK/3b2Nq/1rn1r1q1 w - - 0 1 illegal: No possible last move, all moves rejected
3br1Rn/1PN2r2/BnP1bq1P/Nb4Bq/1B5r/2p1Rr2/2QqnbK1/k7 w - - 0 1 illegal: No proof kernel
4q1r1/P1K3rk/1n1B2nN/b4r1r/1P6/bb1N1pq1/P2q1RR1/QN1Bnn2 w - - 0 1 illegal: Other
b3Qb2/Pn1brnr1/K1NR3p/N3P1qP/7R/b3qn2/2k2qq1/2BN1Br1 w - - 0 1 legal: proof: d4 e5 g4 exd4 c4 f5 b4 fxg4 b5 a6 Nc3 axb5 Nb1 bxc4 Qa4 c3 Qb3 Ra4 Qd1 Ra8 a4 Kf7 e4 Ke6 Ke2 Ke5 Kd3 g5 Kc4 c5 Kb5 d5 h4 g3 h5 g2 a5 c4 f3 g4 a6 g3 a7 d3 f4+ Kd4 f5 c2 f6 c3 e5 d2 f7 Na6 Bb2 c1Q Bd3 Nh6 Qf1 d1Q Na3 Qg4 Nc4 Qe3 Bc1 c2 Na3 Kc3 Be2 d4 Bd1 d3 Nh3 g1R Qf2 d2 Nc4 g2 Qg3 Qdg5 Nd6 Rg8 Ka5 b5 Qf4 b4 Kb5 b3 Rb1 b2 Nf2 Rg7 Qh2 Bd7+ Ka5 Nc5 Be2 d1B Qf4 Nb7+ Ka6 Re8 Rh2 Re7 Bf1 Bf3 Qa4 Q4f4 Ra1 b1N Rh4 Nd2 Nc4 Bd5 Rb1 Nf3 Rb6 Qfd4 Na5 Be4 Ba3 c1B Nd1+ Kd2 Qb5 Kc2 Rd6 Qf2 Bb2 Qde3 Ba3 Bc8 Qe8 Bd7 Bb4 Ba3 Bd2 Rh1 Bc1 g1Q Qa8 Q1g2 Qe8 Rg1 Bb2 Rg8 Bc1 Bg7 f8N Nf7 Ne6 h6 Nd8 Bf8 Ndc6 Rg6 Rh3 Rg7 Rh4 Nbd8 Nb8 Ba8 Nbc6 Nb7
1n3r2/K2rR1b1/5BP1/2rB3b/bk1PQ1b1/Nqrb1bnP/p3B2n/2R1N3 w - - 0 1 illegal: No proof kernel
1R1b1n1B/2rBPp1P/b2bqb1r/2n1rN1K/n3B3/NR6/P1b2k1b/n1Q5 w - - 0 1 illegal: No proof kernel
1n1qn1r1/1KP3rR/b4QBp/5PNb/rP1b3R/rNB5/4br2/r2Rnk2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Kf6 f4 e5 c4 a5 b4 d5 c5 d3+ Ke3 d4+ Kd2 h3 g5+ Kf5 c6 e3+ Ke1 Ke4 c7 d2+ Ke2 h6 f5 h2 g6 a3 g7 a4 Qe1 a2 Qf2 d1B+ Ke1 a3 Qd2 e2 Kf2 e1N Nh3 d3 Bb2 Bc5+ Kg3 Ra4 Qc3 Ke3 Bg2 Ke2 Rf1 h1R Qd4 e4 Kf4 d2 Ke5 e3 Bb7 Nf6 g8R Ne8 Bd5 Rh2 Qc3 Rf2 Ng5 Ba6 Rg7 Rg8 Rh7 Bd4+ Ke4 Rg7 Rh1 Rg8 Rh2 Kf1 Rh4 Bh5 Bf7 d1B Bg6 e2 Qc6 Rg7 Qf6 Rg8 Nc3 Rg7 Nb5 Rg8 Rb1 a1R Bc3 a2 Rc1 Nd6+ Kd5 Ne8+ Qd6 Nd3 Rb1 e1R Rc1 Bde2 Rd1 Ba7 Nd4 Rg7 Nb3 Bd4 Rb1 Rd1 Rc1 Ne1 Rb1 Rd3 Rc1 Rg3 Rd1 Nd7 Kc6 Rgg2 Nc5 Nb8+ Kb6 Rg4 Qf6 Rg3 Bb2 Rga3 Bc3 Rb1 Ka7 a1R Ka8 Rb2 Nb3 Rd2 Rg4 Rd3 Rh4 Rg3 Bf7 Bac4+ Kb7 Rg8 Ne4 R3g7 Ng5 Bb5 Bg6 Ba6+
1Q6/b4nk1/1nRq4/1r1N3n/1pP1Bn1P/1R1Pn3/Krr2rN1/nB2Bbq1 w - - 0 1 illegal: No possible last move
1n2b3/4R3/3PRN1b/4B1P1/Bnk1n1Q1/1r4r1/bn1RrPp1/2NKbrqb w - - 0 1 illegal: No proof kernel
2rrk1Bn/QN2r3/1p2rb2/1PK2n2/rBbN3n/1R1P3P/1bn2Bb1/4qR2 w - - 0 1 illegal: No possible last move, all moves rejected
1N6/nn4rK/P1B2pr1/B1Prnb1N/3Qq1kb/P5qR/1Rr1r3/r3B1n1 w - - 0 1 illegal: Other
2nr4/1RnnQ1P1/3q1n2/PRP2r2/1n3Nb1/RNKp3n/q1b3b1/bB4Bk w - - 0 1 illegal: No possible last move, all moves rejected
1RB1K2n/nPbbP3/P1q5/q1q5/Q1p1RBb1/N3N1b1/k6r/N1qqrq2 w - - 0 1 illegal: No possible last move, all moves rejected
8/nPP1Pk1B/Qn6/Br2n1nK/bbrb3p/2q5/nr1BR2N/rR2bN2 w - - 0 1 illegal: No proof kernel
3bq1B1/R2B2kP/np1K1n1n/nnB5/P6N/1nq1Q2N/1PR2nr1/2nr1b2 w - - 0 1 illegal: No proof kernel
3Bq3/b3B3/1b1Q1rq1/2qq1BN1/r1N1R1r1/rP3K1p/PP3b1n/2kn1bR1 w - - 0 1 illegal: Other
1qk1n2n/1n4bN/3RnP1p/1P1bBK1B/P2Q2b1/rN2r1R1/rq1r2b1/7R w - - 0 1 illegal: No proof kernel
1n3Br1/nR2qB1r/qb2PQ1r/5P1r/qb1N4/2k2pbb/P3q1N1/R1K1R3 w - - 0 1 illegal: No proof kernel
1Bq1nnqQ/1RPP1b2/k4bNp/P3R3/2nqN1q1/nb1B4/4rrb1/K3B3 w - - 0 1 illegal: No proof kernel
2r1n1B1/1R3b2/q2n1Bq1/4KB1P/Pn2NP2/Q1pnrkb1/1n1p1b2/1r3NR1 w - - 0 1 illegal: No proof kernel
1Bq4R/1R1nQbb1/2nN1q2/6p1/NPn1K2p/2rP1PBr/4qr2/kq4qB w - - 0 1 illegal: No proof kernel
5r2/4r2N/1Q1q1P1n/K1pnn3/2b1b2p/k2BPRrR/q1P4b/2N1rrBN w - - 0 1 legal: proof: g4 e5 h4 a5 d4 exd4 b4 axb4 g5 f6 Bb2 fxg5 Ba3 gxh4 Bc1 h3 Kd2 Ke7 f4 Kd6 a4 Kc5 e3 b5 f5 h5 a5 d5 a6 g5 a7 h2 f6 b3 Na3 Kb4 Bc4 c5 Be2 b2 Bc4 b1N+ Kd3 h4 Bb3 g4 Ra2 g3 Ra1 g2 Ba4 Nd7 Qf3 Ba6 Qd1 Ne5+ Ke2 Nc3+ Kd2 d3 Nc4 d4 Na5 Nh6 Bb2 Qd6 Qb1 Nd5 Nb3 Rh7 Nc1 Re7 Nge2 g1R Ng3 Re1 Rf1 h1B Rf3 Rae8 a8N Bg2 Rf1 Be4 Rf3 Rg1 Nh1 Rg3 Nc7 Rc8 Ke1 d2+ Ke2 d1R Ne6 Rf1 Ng5 d3+ Kd2 Re1 Nh7 Rd8 Bb3 Rf1 Ba2 Rc8 Bc3+ Ka3 Ba5 b4 Bc7 b3 Bb8 Nb4 Kc3 d2 Bc7 d1R Bb8 Be2 Bc7 Ned3 Kc4 b2 Kb5 Ne5+ Ka5 Rde1 Bc4+ Na2 Be6 Rg6 Ng3 Qd7 Bb8 Nc4+ Ka6 Rf7 Be5 Rh1 Nh5 Bd6 Rf4 Rd1 Nd3 Rcf8 Rf3 Re7 Bh2 Bf4 Bf7 Ne5 Bc4 Qd6+ Ka5 Rdg1 Ng3 Bf1 Qd1 b1Q Ba6 Qb3 Qb1 Qg8 Qb6 Rgg7 Rd1 Nc3 Nc1 Qa2 Rd2 Nd5 Rg2 Bfd3 Bb5 Re1 Bc4 Rhf1 Bg1 Rg5 Rh2 Be2 Nh1 Rg6 Rhh3 Bh2 Ba6 Rg3 Bb5 Bc4 Ba6 Bb3 Bd3 Bc4
qR3r1N/r7/1Bn1PN1P/2bb1B2/Npn4R/rkpK4/1r1Q2P1/1qqbr3 w - - 0 1 illegal: No proof kernel
b4K1q/b1n3rR/2R1P1bP/1B1rr2p/R2B1N2/pq3PQN/3nrq2/4kr2 w - - 0 1 illegal: No possible last move
1n1R1n2/6BR/kb2pR1b/3P3b/q1rbqrQP/2qB1b1p/1KP5/N3nN2 w - - 0 1 illegal: No possible last move, all moves rejected
1rrB1RK1/1q3n1N/QrrP1b2/R5Pq/r2n1n1P/3Bk2p/B2b2p1/2N4b w - - 0 1 illegal: No proof kernel
2r1Qb2/6kb/1bpb1r1q/n1N4q/3PBP2/bq1B1pn1/2r1PBK1/1RN3R1 w - - 0 1 illegal: No possible last move, all moves rejected
k1Nn4/2qnb3/n1prN2r/P1q3B1/b1NP2rB/r1pR3b/R1PQr3/6K1 w - - 0 1 legal: proof: f4 a5 g4 e5 b4 axb4 g5 exf4 g6 d5 Bg2 hxg6 Be4 g5 Bd3 g4 Bc4 dxc4 Kf1 Kd7 a4 Kc6 e4 f5 d4 b5 h4 Kb7 h5 g5 h6 b3 h7 c3 e5 f3 e6 b4 e7 f2 e8N b2 Ra3 b3 Bd2 g3 Be3 c6 Rh6 g2+ Ke2 f1R Qc1 g4 Rd6 f4 Nf3 g1R Rg6 g3 Qe1 g2 Ne5 f3+ Kd1 f2 Ke2 Bh3 Ra1 Nh6 Ng7 Nf7 Rg5 Na6 Nf3 Qc7 Qc1 Be7 Nh2 Nd8 Nd2 b1R Ne6 b2 Nhf3 Ra7 Ra2 Ka8 Rg8 Ra1 a5 b1Q Nh4 Re1+ Kf3 f1B Kf2 Qbb6 Bh6 Qc5 Rg3 Bb5 Ng6 Ba4 Bg5 Rb7 Rd3 Re2+ Kf3 Rb8 Nc4 Rb7 Qd2 Ra7 Rb2 Ra3 Bh4 Q7b6 Bg5 Rd7 Ra2 Rd6 Kg3 Qc7 Kh2 Ra1 Bh4 g1N+ Kh1 Rg8 h8B Rd1 B8f6 Nf3+ Be1 Rh8 Bg5 Ne5 Kg1 Rb1 Ngf8 Rh6 Ng6 Rb7 Bg3 Nd7 B3h4 Bf6 Ne7 Rb5 Nc8 Be7 Qe1 Rb1 Nb2 Rd1 Nc4 Rdd2 Qd1 Re4 Qc1 Rde2 Qd2 Rg4+
3Q3R/2rb2r1/1Rp1qP1P/p1r2B1n/2nb3R/1b2qPb1/1B5b/2Kn1NNk w - - 0 1 illegal: Other
1K2R2r/2n2NQb/1P2p1B1/kbr5/1n3RpP/2n1b2q/2bNP1b1/1r3RqB w - - 0 1 legal: proof: f4 b5 g4 c5 a4 bxa4 d4 cxd4 f5 h6 Bg5 g6 Bf6 gxf5 g5 f4 g6 Nc6 Bh4 Nb8 Bg5 hxg5 Kd2 f5 Kd3 d5 h4 Kd7 b4 Kc7 c4 Kb6 g7 a5 b5 a3 Qe1 a2 Nh3 a4 Nd2 a3 c5+ Ka5 c6 e6 c7 g4 b6 f3 Rh2 f4 Rf2 Bc5 Rh2 f2 Ng1 f3 Qc1 Nc6 Qb2 Bd7 c8B Nf6 g8R Ne8 Nb1 Nb4+ Kd2 d3 Kc3 d4+ Kc4 d2 Rg5 d1B Rg7 d3 Qb3 d2 Qb2 Bc2 Rg5 d1N Bh3 f1B Bb7 f2 Be4 Rc8 Rg8 Qf6 Bh7 Qf3 Qg7 Nc3 Bg2 Qh3 Nd2 Be3+ Bc6 Rc7 Ngf3 Rc8 Rb1 a1Q Ng5 a2 Nf7 Rc7 Rc1 Qb1 Rg2 a1R Rg3 Rc8 Rf3 Rc7 Re1 Qd1 Rf4 Rb1 Be4 Rc8 Bh1 Bg2 Rf8 Bge4 Rg1 Nf6 Re8 Bh7 Be4 f1B Bg6 Nfd5 Rh1 Rd8 Rg1 Nc7 Bh1 Bg2 Re1 Bc8 Rg1 Rd4+ Kc5 Ba6 Re1 Rc4+ Kd6 N7d5 Kd7 Nc7 Rg1 Bb5+ Kc8 Qf1 Kb8 Qf2 Rd1 Rc5 Rf1 Qg1
2qN4/3kqrP1/1nq3K1/5p1N/np3b1B/1Q1qPrB1/2B2P2/brRR1q1b w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 h4 axb4 h5 e5 h6 gxh6 d5 h5 Qd3 h4 Qd4 exd4 Kd2 h5 g4 c5 a4 b5 g5 f5 d6 d3 Ke3 b3 Kf4 d2 g6 d1Q a5 b4 a6 b2 a7 h3 Ra2 h4 Bd2 h2 Ra3 c3 Be1 c4 Ke5 c2 Ra6 c1B Rc6 c3 Bg2 h3 Bf1 c2 Bd2 Qe7+ Kf4 Rh7 Nf3 Rf7 Ne5 Bg7 Nc3 b1R Ne4 Bb7 Ng3 Nd7 Nh5 Ngf6 Kg5 Nc5 Bf4 Qd3 d7+ Kd8 Bg2 Na4 Rd1 h1Q Be4 h2 Rc4 Rc8 a8Q Qf1 Qa7 h1Q Qe3 Bh8 Bg3 Nd5+ Kh6 Bf6 g7 Ndb6 Kg6 Bd5 Qf3 Bf4 Nc6+ Kc7 d8B+ Kd7 Rc5 c1Q e3 Ba1 Qe2 Rc7 Qa2 Qcc4 Qb2 Qa6 Rcc1 Qc8 Qb3 Qf3 Nd4 Rc4 Ne6 Ba8 Bb7 Qfc6 Ba6 Qed6 Bdh4 Qe7 Bb7 Qcd6 Ba6 Bh1 Bb7 Qdc7 Bd5 Qc6 Be4 Bd6 Nd8 Rd4 Bf3 Rf4 Bd5 Rf3 Be4 Qdc3 Bc2 Qcd3 Bg5 Bc7+ Bf6 Bd6 Bfh4 Bf4+
1b6/1r1BnkPR/1BPr4/1b2Q2n/1Rp1npNP/1r2qNr1/r1bq4/1RK5 w - - 0 1 illegal: No possible last move, all moves rejected
B5N1/Kn1BbpNB/1P3Pb1/Pq1RqQn1/1r2bbrp/8/1b2R3/qn3k2 w - - 0 1 legal: proof: d4 a5 c4 b5 b4 bxc4 h4 e5 h5 exd4 b5 g6 Ba3 gxh5 Be7 h4 Bb4 axb4 Kd2 Ke7 a4 Ke6 e4 Ke5 g4 Kf4 f3 Kg3 a5 Kf2 e5 c5 f4 d5 f5 h5 b6 c3+ Kd3 h3 e6 b3 e7 c2 e8B c1B g5 h2 g6 b2 g7 c4+ Kc2 c3 Kd3 c2 Bg2 Be7 Nd2 b1N Ba4 Nf6 g8B Na6 Ra3 Qe8 Bc6 Nh7 f6 Bb2 Ndf3 c1B Bd7 Ng5 Ne2 Bf4 Qc1 Nc5+ Kc2 Nb7 Kb3 d3 Ka4 d4 Kb5 d2 Re3 d1Q Qc2 d3 Ne5 d2 Bgc6 Qe1 Qf5 d1Q Ng3 h4 Ng6 Rh5 Rg1 h1B Bh7 Be4 Bd5 Rb8 Ka6 Qb3 Ka7 Qb5 Rd3 Qc3 Rg2+ Ke1 Ne2 Kf1 Nd4 Qa3 B5c6 Qa1 Ne6 Qe5 Ng7 Qb5 Be6 Qe5 Bcd5 Qb5 Re2 Bd7 Rd4 Rg8 Rdd2 Bc6 Bd7 Bc2 Bh1 B6e4 Rd4 Rc8 Rd3 Rc4 Rd5 Rb4 Bf3 Nh3 Bh1 Rg5 Bf3 Rg4 Bh1 Bd6 Ne7 Ng5 Ng8 Be7 Rdd2 Bed3 Bhc6 Be4 Rd5 Nd6 Ba8 Nb7 Qe6 Bg6 Qf5 Be4
5B2/nb2P2p/rBQ1p3/b1N3n1/r4nrB/kqbKP2q/1NPR2R1/5rr1 w - - 0 1 illegal: Other
r2BN1nn/q2bp2R/1BrbP3/2P1b1BK/1q6/n2p3k/1P2Q1nr/1N1n1R2 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Bh6 h4 Kd2 h3 Bg2 hxg2 Ke1 fxg6 Bf4 g5 Bc1 g4 h4 Kf7 f4 Kf6 Kf2 Kf5 Kg3 d5 c4 g5 h5 a5 c5 a3 e3 a2 h6 d3 h7 a4 Rh3 a3 Rh2 d4 Nf3 g1R+ Rg2 d2 Qe1 d1N Nc3 d3 Ne2 Bg7 Bd2 Qa5 Bc3 Nd7 Nd2 Qb4 Qf2 Ne5 Ne4 Nf7 Rb1 a1N Nf6 a2 Ne8 Bd7 Qe1 Rh1 Rh2 Be5 Rh4 Rh2 e4+ Ke6 Bd2 Nc2 Nc3 a1Q Qe2 Na3 Rh5 Bd6 e5 Kf5 e6 Rc8 Be1 Rc6 Rh6 Nb5 Rc1 Qa7 Nb1 Na3 Bc3 Ne3 Rf1 Ng2 Kf2 g3+ Kf3 Ne3 Rh3 g2 Kg3 g4 Kh4 g1N Kh5 g3 Be5 Bb8 Bc7 g2 Bb6 Nf3 Rh4 g1B Rh3 Ke4 f5 Kf4 f6 Bd6 Rh4+ Kg3 Bd8 N7e5 f7 Ng6 f8B Nd1 Bh6 Bd4 Bg5 Ne1 Bb6 B4e5 Bd8 Nh6 Bb6 Rg8 h8B Ng2 Bhf6 Nh8 Bd8 Bf4 Bc3 Bfe5 Bb6 Qb3 Bca5 Qb4 Ng7 Ra8 Ne8 Ng8 Bd8 Nge3 Bab6 Rf2 Rf4 Kh3 Rf7 Rh2 Rh7 Ng2
4NK1b/NR1Pr2Q/kn2rr1P/3q3B/P3q2b/1r2n3/1p2nN1p/B1rR1b2 w - - 0 1 illegal: No proof kernel
rBr3nN/n1P1n1pq/Rr1PBQpr/b4N2/P2b2qR/N4r2/1k1Kb3/8 w - - 0 1 illegal: No proof kernel
1B1KR2n/rrPr1PQ1/1b1Pp1Nr/3N4/B4p1N/7k/b1bqR3/1nn1qr2 w - - 0 1 illegal: No proof kernel
1B1K3B/b1P1P1Pn/NR3qB1/3rq2b/Rn3bnr/pp6/1nn2k2/2Q2N1r w - - 0 1 illegal: No proof kernel
1q2k3/PK1Nq3/1b1q3B/1BpN4/Q5rP/prbrb1P1/4R1bb/B1n2nR1 w - - 0 1 illegal: No proof kernel
brn5/NR2brqb/1n1R4/1R3Pkp/p2r4/PQ1KPb1b/1N4bB/2B4b w - - 0 1 illegal: No proof kernel
r1Rb3n/1bP2Q1b/1BN1bb1n/1N1P3K/5kp1/b4pr1/qr4PN/b1RB4 w - - 0 1 illegal: No proof kernel
4B2K/qrN1krn1/1B5r/P7/3bnRPP/1nr1bp1Q/b2Bq1Rp/N4q2 w - - 0 1 illegal: No proof kernel
1q1B3q/R1r1n1Nk/5n1r/P2rpRb1/Pnb2b2/1p1NQ2K/q2B2BP/4n3 w - - 0 1 illegal: Other
q2r1n2/1qb3K1/6P1/Bb2P3/3NPrn1/Rqp2b1R/rk1rpnR1/5BNQ w - - 0 1 illegal: Other
1kB3r1/N1nR4/1NP1q1N1/1bq1b2p/BQ1P1p1P/1bbRK3/1n3r2/3r1q1n w - - 0 1 legal: proof: f4 c5 b4 d5 e4 dxe4 b5 g5 b6 gxf4 Nh3 c4 Qg4 c3 Bb2 cxb2 Ng1 axb6 Qh5 b5 Qd1 b4 Kf2 Kd7 h4 Kc7 c4 e5 d4 b5 g4 f5 a4 h5 g5 f3 a5 b3 c5 e3+ Kg3 e2 Kf2 e1N c6 b4 g6 e4 g7 e3+ Kg3 f2 Kf4 e2 a6 Nf6 g8B Qe8 a7 Nd3+ Kf3 e1B Bg2 f1B Bf7 Na6 Ra3 Bc3 Rh3 Bg7 Ra4 Qe6 Nd2 b1Q Bg8 b2 Rh1 b3 Ne2 Qc1 Rh3 b1Q Nf4 b2 Ng6 Ne4 Qb3 Ng3 Nc4 Nh1 Na3 Be5 Qb4 Qa1 Ra5 b1R Rd5 Nb2 Bf7 Bb5 Bf1 Qc2 Ke3 Rd1 Bd3 Rg8 Rd7+ Kb6 Bc4 Nc7 Bb3 Rb8 a8N+ Ka7 Rg3 Rb7 Ba4 Kb8 Be8 Ra7 Nb6 Bca6 Rd5 Bc4 Rd7 Bb3 Nb5 Qab1 Nd6 Bb5 Ndc8 Ra8 Na7 Qa1 Rg2 Qcc1+ Rd2 Qa3 Qa5 Qc5 Qb4 Qb1 Nf4 Rg2 Ng6 Rf2 Rd3 Rdd2 Rd5 Qf1 Bd7 Rd1 Bc8 Na6 Rd6 Kc7 Bd7 Rg8 Rd5 Kb8 Bc8 Nc7 Rd7 f4+
1N2q2B/Nr1rkpn1/6Q1/2P5/b1P1qP2/KR1qn1b1/R1R1p3/Bbr2b1n w - - 0 1 illegal: Other
b2b3r/4P2r/B1Q2R1N/Rbn1r1q1/pb1qP1Bn/Nn2P1p1/Kq3B2/2k5 w - - 0 1 illegal: Other
2qnr1b1/1B2p2b/PR2Qq2/b1nn1p1q/4R3/1r2nN2/1r2P1kP/RKB3N1 w - - 0 1 illegal: No possible last move, all moves rejected
2B1N1K1/r2pn2R/p1kP3b/1q2BQ2/nn4bq/q7/1P1Pr1br/N3NR1n w - - 0 1 illegal: Other
r2rr3/Q1p3R1/rB1RPk1q/B1P3n1/3NBP2/Kp2Nq2/5q2/2b1nbbn w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nh3 h4 Ng1 fxg6 Qd2 g5 Qd3 g4 Qg3 hxg3 Kd1 Kf7 h4 b5 a4 d5 e4 g5 c4 g2 Kc2 g3 Kb2 b3 f4 d3 e5 d4 e6+ Kf6 h5 b4 a5 g4 a6 d2 h6 d1Q a7 d3 h7 d2 Rh3 Qf3 Ra2 d1R Ra5 Nd7 Rh4 Ne7 Re5 Ba6 Rh1 Nc5 Rhh5 Ne4 Rh4 Nf5 Bd2 Ng5 Ne2 g1Q Nbc3 g2 Nb5 g3 Nec3 Qgf2 Rd5 g1B Nb1 g2 N1a3 Ng3 Rd3 Nh1 Nd4 Bd6 Rh2 Qf8 Nac2 Qh6 Ne3 Rhe8 Rh4 Ra1 Rg4 Bb5 Be2 Ra6 Rg3 Rad8 a8Q Bf8 h8B+ Bg7 Kb1 b2 Qa7 Ra8 Kc2 b1R c5 Rd1 Kb2 b3 Ba5 Bc4 Bb6 Bb5 Rd2 Bc4 Bd3 Bb5 Be4 Bf1 Re2 Rd2+ Ndc2 Rd4 Rd2 Rdd8 Rd6 Ke7+ Kc1 Bc3 Nd4 Bd2+ Kb2 Nf7 Rg8 Ng5 Rg7+ Kf6 Ba5 Bh2 Ka3 g1N Ne2 Qfh3 Nd4 N1f3 Ndc2 Bg1 Nd4 Rc6 Bb6 Ne1 Nb5 Qg4 Nd4 Qgf3 Rg6+ Ke7 Ndf5+ Kf8 Bc3 Re7 Nd4 Ree8 Bca5 Ke7 Rg7+ Kf6 Qa6 Bh2 Ba7 Bg1 Qb7 Ra6 Bb6 Bh2 Qb8 Bg1 Qa7 Bc1+
5rB1/RP1N2bR/b2q4/k1NRB1pP/bn1n1n1P/1q1r3K/2rpq3/5Qq1 w - - 0 1 illegal: Other
1r2Bk1q/BPpr4/2P1r3/2K2nr1/R2Q1b2/6Nq/P1RpbN2/B1nnb1q1 w - - 0 1 illegal: No proof kernel
qN2Q3/P2R1pb1/nK2Rr2/n4q1B/n1Prr3/2Nkb1P1/3B2p1/Bb1q2n1 w - - 0 1 illegal: No proof kernel
1R1n2rk/R1b1NPbr/1P5n/2r5/b1pQ3p/n3b2B/1KbB1NP1/q1R3b1 w - - 0 1 illegal: No possible last move
2b3b1/1qB5/3p1P2/bpqNQ1r1/6Rb/KPb1RP1B/n1Bk2b1/r1n1N2b w - - 0 1 illegal: Other
2R1b3/2n1RKb1/qBn5/n2r1p2/4r1rR/1r1NpP2/qrQPNPk1/r5B1 w - - 0 1 illegal: Other
4n1R1/n2Nrr2/1Q1r2q1/2bPBbnn/b1Np1b2/P2NpK2/1BR1P2k/5b2 w - - 0 1 illegal: No proof kernel
1bQ2BbN/3b3n/1n2b1BR/p3PPB1/P1rnRb2/4p3/4rq2/q2kb1KN w - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 c4 bxc4 e5 f5 Qd2 g5 Qf4 gxh4 Qe4 fxe4 g4 Kf7 a4 Ke6 f4 Kd5 Kf2 c5 b4 h5 f5 a5 g5 c3 b5 c4 g6 c2 g7 c3 b6 h3 b7 h2 Ne2 Kc4 Ra3 Kd3 Bg2 d5 Ra2 h4 Rb2 h3 Bh6 c1B Nd2 c2 Kf1 Bd7 Rb1 Nc6 b8B Bd6 Nc3 Nf6 g8Q Qb6 Rb5 Nh7 Nf3 Bf4 Qg6 c1B Qf6 Kc2 Bg7 d3 Qd8 d2 Ng5 d1B Qe7 d4 Ba7 d3 Qe6 d2 Rb4 Rac8 Nb1 Bb8 Rb3 Nd4 Qd6 Rc4 Qc6 e3 Rd3 Qb2 Bf8 Bh5 Bb6 d1N Nf7 Bd2 Qc5 Be1 Bd8 Nc3 Bg5 Nd5 Bf3 Nb6 Nc3 Rg8 Nh8 Bf7 Bc6 Bfe6 Ne4 Qa1 Rb3 Kd1 Ng3 Qa2 Rb4 Qb2 Rg1 h1B Bd5 h2 Qc8 Bf3 Nh1 Bh5 Rg4 Bhf7 Rh4 Rg7 Rh6 Bg8 Bd8 Rg3 Bg5 Rg2 Bf3+ Re2 Bh5 Qc2 Bg6 Bh4 Qa6 Rg2 Bfe7 Rc8 Nf2+ Kd2 Qb7 Ne2 Re4 Nd4 Nh1 Rc4 Nf2 Bhg3 Qc8 Qa2 Nh3 h1Q+ Ng1 Qh4 Bf8 Be1 Nh3 Re2 Nf2 Qa1 Nh1 Kd1 Kg1 Qf2+
b1kb3b/2n4R/P2b4/p5Pb/NPQBr2R/1B1B4/pr2rq1q/b1n2K1N w - - 0 1 illegal: No proof kernel
8/6P1/2bBpnnr/Pnb3bq/1NK1N1bq/1rPb2R1/3QRp1b/k2B3R w - - 0 1 illegal: No proof kernel
1RN5/2K1Q1pP/r3p1P1/k2nB2b/P5q1/Nb1N4/1br1brB1/rn1R1b1n w - - 0 1 legal: proof: e4 a5 d4 h5 g4 c5 b4 axb4 e5 cxd4 e6 fxe6 g5 e5 Qf3 e4 Qg4 hxg4 Ke2 d5 c4 Kd7 f4 Kc7 a4 Kb6 h4 d3+ Ke3 e6 Kd4 e3 Ke5 g3 h5 b3 c5+ Ka5 g6 b5 h6 g2 h7 b4 f5 e2 c6 e1R+ Ne2 g1R c7 b2 f6 b3 f7 d2 Na3 b1B Bb2 d1B Nb5 d4 Nd6 d3 Bh3 d2 Bc1 b2 Ne4 Ba3 f8Q Ref1 N2g3 Na6 Rh2 Bh5 Rh1 d1B Bh6 Qg5+ Nf5 Ne7 Ra2 Nb4 Kd6 Nbd5+ Nc5 Bd3 Nh4 Nf5+ Kc6 Bca6 Ra1 Ng3 Bg2 Rf2 Nf3 Qg4 Qe7 Rhc8 Nd4 Bab5+ Kb7 Ra6 Bf4 Rgf1 Rg1 Nh1 Be5 B1c2 Ra2 Ra1 Rd1 b1N Rb2 Bf1 Rb3 Bbc4 Nb5 Bb2 Na3 Bce2 Rb4 Bb3 Nd3 Rc6 Rb6 Ra8 c8N Rc2 Rb4 Ndc3 Kc7 Ra6 Rb8 Nd5+
Bk4N1/5P2/3b4/1r1P1Q1b/nR1K1bq1/1P5b/1nrrNppb/n1B2rRR w - - 0 1 illegal: No proof kernel
4Nr1b/n2N1PB1/1nqpRb1R/1BB2b1K/1bnb3P/2b1q1p1/1PQ5/1r2k3 w - - 0 1 illegal: No proof kernel
NqR1b1N1/2r1P3/2P3n1/2p1NRP1/b1rnB2B/brp1Kn2/kn5b/b4Q2 w - - 0 1 illegal: No proof kernel
1N2Qr2/2nnP1Nk/2p2Pp1/3nq1bb/B2q4/KRB4N/bPR2bb1/b3r3 w - - 0 1 illegal: No proof kernel
N2qk3/2P1P3/3p1Q1n/qN1Kr2n/rPB5/1nRb2Bn/1b1Rnrpn/3B4 w - - 0 1 illegal: No proof kernel
2b1nq2/1qprN1B1/2qR4/3BQr1P/qkqbRP2/2q1p1N1/3b1P2/nKB5 w - - 0 1 illegal: Other
b2qq2N/bk2BR1q/6Q1/1B1P2p1/rP1b2rb/1np1KN2/R1bP4/B2qn3 w - - 0 1 illegal: Other
b1n2Nkb/b4n2/Kn3bB1/3pn1Pr/2QpP3/3PR2q/4Nnrq/1B1R1B2 w - - 0 1 illegal: No proof kernel
bqR1b2r/4Q1bN/n3q1kN/2p2nn1/1p1P2B1/6PK/2Pb1B2/Nn1r2bR w - - 0 1 legal: proof: f4 d5 e4 dxe4 b4 h5 g3 g5 b5 gxf4 b6 h4 Ke2 h3 Ke1 axb6 Qh5 b5 Qf3 b4 Qg2 hxg2 Kf2 e5 h4 f5 a4 Kf7 d4 b5 h5 c5 a5 f3 a6 f4 h6 b3 h7 e3+ Ke1 e4 a7 b4 Ne2 g1B Rh2 b2 Rh4 f2+ Kd1 f3 Rf4+ Nf6 Rh4 Bb7 Nec3 Na6 Rh1 Kg6 Bh3 f1B Ke1 e2 Nd5 Qb8 Bg4 Bg7 Nd2 b1N Nb3 Bc6 Ra3 Bg2 Be3 Be8 Ra5 Nc3 Na1 f2+ Kd2 f1N+ Ke1 Nb1 Bf2 Ne3 Ra3 Ng8 Nf6 Nf5 Ra5 Ngh6 Rb5 Qc7 Rb8 Nf7 Rd8 Ng5 Rc8 Rb8 a8Q Qf4 Qa7 Ra8 Qd7 Qb8 Qd6 Nc3 Kd2 e3+ Kd3 e1B Qe7 Nb1 Ke2 Bgc6 Kf1 Ra7 Qd6 Ba8 Qe7 Ne4 Kg2 e2 Kh3 Bd2 Qe6 e1Q Qe5 Ned6 Qe7 Nf7 Nd5 Rg8 Nf6 Qe6 h8N+ Kh6 Ng6 Rh8 Nf8 Kg5+ N8h7+ Kh6 Rc6 Kg6 Ng8 Ng5+ Kg2 Rd7 Nh6 Rd5 Rc8 Re5+ Qb7 Re1 Qe4 Nf7 Kh3 Rc1 Qb7 Rd1 Qe7 Ng5+
3Rb2Q/1Brn1N1R/4KbP1/B3BP2/nP2pb2/2qr1r2/b4r1p/1b1Nk1q1 w - - 0 1 illegal: No proof kernel
qq6/k1qQBPqn/qR4BN/bB1r4/Kp1r1rPr/n3R3/pP6/5b1N w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 a5 c5 a6 cxd4 Kd2 Qa5+ Ke2 Qxa6+ Ke1 Qa2 Kd2 Kd8 g4 Kc7 f4 Kb6 c4 d5 Kc2 h5 f5 e5 f6 a5 f7 d3+ Kc3 h3 c5+ Ka7 c6 b5 c7 d4+ Kd2 e3+ Ke1 h2 Qd2 e4 Kd1 e2+ Ke1 a4 Bh3 a3 Nc3 h4 Qc2 d2+ Kf2 e1Q+ Kg2 d1R Nf3 e3 Nd2 e2 Kf3 d3 Ke3 Na6 Kd4 Qg3 Qb1 e1Q Qc2 Qe8 Nf3 d2 Nd5 Bb4 Qd3 Ba5 Qc2 Nf6 Rf1 h1Q Qf5 Nb4 Kc3 Nh7 Nf4 Ba6 Ne2 Qb8 c8B Qge5+ Nfd4 Qhb7 Be6 Qg7 Rf3 Q7c7+ Bc4 Rf1 Qd7 d1R Bg2 h3 Re3 h2 Be4 h1Q Ng3 Rf4 Bg6 Qe4 Nh1 Qc6 Bd2 Nc2+ Kd3 b4 Nf5 Qa4 Bb5 Qe6 Nh6 a2 Rc1 Na3 Rc6 Rd8 Rb6 Qe8 Ng3 Rh1 Bc3 Rh4 Bf6 Qef8 Be7 Qfh8 Qd4 Rd5 Nh1 Qhg8 Kd2 Qg8f8 Be8 Bf1 Bb5 Qbc8 Qd3 Qa6 Qd4 Rad8 Qd3 Nc4+ Kc1 Qa3 Kc2 R8d6 Qf5 Qfb8 Qd7 Rdd4 Re6 Qf3 Re3 Qfa8 Kb3 Na3 Ka4 R6d5
Br6/1R1q1P2/2B5/2krpbqN/2PR2bn/1qP2bq1/2pQb1n1/b1BN2K1 w - - 0 1 illegal: Other
1Q1qBN2/1n2P1K1/1rq1q3/1p2npB1/2P1N1b1/qRq4R/1R2n2P/kr1nb3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 e4 Ke5 c4 d5 a5 g5 a6 b5 a7 f3 Kg3 f2 Ra5 d3 Nc3 Kd4 e5 d2 e6 b3 Ra4 b2 Qf3 d1Q Be2 b1Q Bb2 f1Q Bc1 Qb4 Bb2 Nh6 Bc1 Na6 Na2 Qh3+ Kf2 Nc5 Nc3 Nb7 Ne4 Qdb3 Nd6 Q3c3 Qg3 Qba3 Qg2 g3+ Kf1 g4 Ne8 Bb4 e7 f6 Ra5 Nf7 Ng7 Rh6 Bg5 Ne5 Bd3 Rg6 Ke2 Qh6 Qf3 g2 Nh3 g1Q Qg3 Qg2+ Nf2 Rb8 a8R Qhh3 Qf3 g3 Rb1 Bg4 Rb3 f5 Be4 Qh6 Ra4 Ba5 Rab4 Rd6 Rb2 Qe6 R4b3 Qh1 Ra7 g2 Ra6 Rb6 Ra7 Ra8 Ra6 Bh3 Qg3 Bg4+ Bf3 Bb4 Ne4 g1N+ Kf2 Ne2 Qf4 Nc1 Kg3 Ne2+ Kh4 Kd3 Ra7 d4 Bg2 Nd7 Qb8 Ne5 Ng3 Ba5 Bc6 Qhd5 Be8 Qdc6 Ne4 Bb4 Rb1 Kc2 Ra4 d3 R1b2+ Kd1 Ra5 d2 Ra6 Kc1 Ra5 Qg8 Ne6 Raa6 Nf8 Qge6 Bh6 Ra7 Kg5 d1N Ra4 Qf3 Ra6 Be1 Ra4 Qfd3 Rab4 Q3d4 Rh3 Qdc3 R4b3 Ra8 Bg7 Ra4 Bf6 Rb4 Kh6 Nd4 Rf2 Ne2 Kg7 Kc2 Rb1 Rb2 Bg5 Kb3 Rff3 Ka2 Rfg3 Rb4 Rb2+ Ka1 Rd2 Rb1 Rb2 Qcb4 Rgb3 Qc3
1B1b2RQ/1npR4/4PNbq/3b3P/p3nqBq/1b5r/rbK3Pq/4B1Nk w - - 0 1 illegal: No proof kernel
1b5b/2p2BRP/N1rrq3/KNr1n2n/P2q1Pbp/1k2B2N/2b1Q3/r3bR2 w - - 0 1 illegal: No proof kernel
2r3nk/P5rq/q1bb4/2P5/prRNQr2/7K/1pBNPq1B/RqB2r1n w - - 0 1 illegal: No proof kernel
5B2/1BR1NrQq/1bN2R1b/b1qPn2B/rrr2npp/2P1n1P1/bk6/6K1 w - - 0 1 illegal: No proof kernel
2R3rN/5n2/n1b3R1/1P2Q1Pp/R2B1b2/qr2qP2/2rb1rpb/3BNknK w - - 0 1 illegal: No possible last move, all moves rejected
1nR5/1r1q4/q5qB/1p2Qp2/r2B2Bk/1nb1Nq1n/PPbPN2K/nR1b4 w - - 0 1 illegal: No proof kernel forced: bxDB
5bQ1/6N1/K1NBn1PP/Pp1n2q1/rb2kq2/1p2Nr2/5rBb/1r1RRn1b w - - 0 1 illegal: No proof kernel
2N3kr/3r1n1q/q2R1P1n/2b1P1N1/1b2K1Np/3Q2r1/1bbBp1BP/nR1n4 w - - 0 1 illegal: No proof kernel
1nbqN1Q1/B2rrB2/b3RP1b/4P1R1/2Rppb2/qk1P2rn/2n3rK/6N1 w - - 0 1 illegal: No possible last move, all moves rejected
2b3B1/B1r1n2r/3nPbR1/r3N1B1/1b1p1q2/NQPPqRr1/4pK2/2n1n2k w - - 0 1 illegal: No proof kernel
b4Nbb/4r1Nn/3QPqBr/3p1KPn/BB1r3r/b1p1q3/4P1RR/k3n3 w - - 0 1 illegal: Other
3R2Q1/b1r3n1/RB1Pqn1n/N1pbN3/1kP1P1n1/q3bBb1/4r1rp/2R4K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 d4 Qb3 exf6 Qc2 f5 Qd3 f4 Qc3 dxc3 Kf2 Kd7 g4 Kd6 Kg2 Kc5 e4 f5 d4+ Kb4 b3 h5 g5 a5 g6 h3+ Kh2 f3 g7 c2 d5 f4 Bg2 h4 Na3 f2 Ne2 f1N+ Kg1 h2+ Kf2 h3 Ra2 f3 Nd4 Ne3 Re1 h1N+ Kg1 f2+ Kh2 f1R Re2 Qe8 Nf3 Bb7 Ra1 Nd7 Nb1 a3 Nh4 a4 Bb2 c1B Bf3 a2 Rc2 a3 Nf5 Rc8 Bd4 Qe6 Ng3 Ndf6 Nd2 Rg1 Ngf1 Nf5 Be2 Nf2 Bf3 Ngh6 g8Q Ng7 Be3 Bc5 d6 Ba7 Bb6 c5 Ne3 Rc7 Ng4 Bd5 Ne5 Rg3 Rc3 N2g4+ Kh1 Rg2 Rc2 Bb2 Rac1 Bd4 Rb2 a1Q Ra2 Qc3 Raa1 h2 Ra2 Be3 Raa1 Qc2 Ra2 Re2 Raa1 Kc3 b4 a2 b5 Kb4 Nb3 Qd3 Na5 Qa3 Qf7 Qd3 Nb3 Nge8 Qg7 Rg8 Ba5+ Ka4 b6 Qc3 Nd3 Ne5 Qh8 Rg3 Qg8 Neg4 Ne5 Ng7 b7 Rgg2 b8R Ka3 Bb6 Kb4 Rd8 Qd3 Na5 Qc3 Nb7 Qb3 Rc3 Qb2 Ra3 Qb3 Ra6 Qa3 Rc1 a1B Nf7 Be5 Na5 B5f4 Ne5 Bg3
Q3r1N1/1nrN2R1/1pkN3q/1R2q2n/PbbP1p2/5q2/1rPn1B1q/nB1K4 w - - 0 1 illegal: No proof kernel
3rk1b1/b1nR4/1p1B4/3NP1r1/r1n2n2/1B1brNqP/1RPp4/qKBn2Q1 w - - 0 1 illegal: No proof kernel
2qq4/5RP1/r1BpNn2/2rP1bn1/2B1k1PQ/2b2q2/1N4pb/b1BKnR1n w - - 0 1 illegal: Other
1r2r2r/3qpk1r/1pRn2nB/NBQN4/2b2P2/1B2K2n/1PP1qn1b/2R2b2 w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 a5 c5 a6 cxd4 Kd2 Qa5+ Ke2 Qxa6+ Ke1 Qa2 Ke2 a5 g4 h5 g5 d5 f3 a4 g6 b6 g7 e3 Qd3 a3 Qe4 d3+ Ke1 e2 Kd2 d4 Qe6 h3 Qc6+ Kf7 Nc3 h4 Bg2 h2 Qc5 h3 Na4 Be6 Qc4 Nc6 Bf1 Nf6 Qb3 Re8 Qc3 Ne4+ Ke1 Nd6 Kd2 Bc4 Qa5 Ne5 Qb4 Ng6 Ke1 d2+ Kf2 d1B Qe1 d3 Bg2 d2 Qf1 e1R Qd3 Be2 Qc3 d1Q Qe5 Bf1 Qc5 Qe2+ Kg3 Qb3 Bh6 a2 Nc3 Qa4 Nd5 Qd7 Rc1 a1R f4 Raa8 Be4 Rab8 Nf3 Rd1 Rg1 Rd2 Bf5 h1N+ Kg4 h2 Rg3 Qe3 Nd4 Qe2+ Rf3 Rd3 Nb3 Nf2+ Kg3 Rc3 Na5 Nh3 Be4 Re3 Bd3 Re5 Re3 Rh5 Re6 Rh4 Bg5 R4h7 Bh6 Qe4 Kg4 h1N Be2 Qe5 Kf3 N1f2 Bd3 Qh5+ Ke3 Qe2+ Kd4 Nb7 Rc6 Nd6 Nb4 Kf6 g8B Bg7 Bd5 Ba6 Bb3 Bc4 Nd5+ Kf7+ Nf6 Bd5 Bb5 Be6 Qe5 Bc4 Nd5 Bf6 Rc5 Bg5 Rc6 Bh4 Qe3 Bg3 Qc3 Qh5 Ke3 Bh2 Qb4 Qhg4 Qc5 Qe2+
qN2Nr2/2PBN1R1/1r3BQp/P1b2q1K/1r2n3/1Pq2p1n/b3n2R/nkr5 w - - 0 1 illegal: No proof kernel
qn2R3/2PN2qQ/p1R5/2K1r2b/1B1Pp2b/b3qnb1/P1Bn4/3NrkqB w - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 e4 d5 f5 dxe4 f6 gxf6 g5 f5 Qe2 f4 Qg4 hxg4 Kf2 Kd7 d4 Kd6 c4 f5 h4 b5 c5+ Kd5 g6 e5 c6 a6 g7 e3+ Ke2 Ke4 c7 g3 h5 g2 h6 b3 h7 f3+ Kd1 e2+ Kd2 e1B+ Kd1 f4 Rh4 b2 Kc2 f2 Kb3 b4 Kc4 b3 Nh3 Kf3 Rg4 g1B Rg2 e4 Nc3 b1Q Rg5 b2 Rd5 Nf6 g8B Qd3+ Kb3 b1N Bb2 Qe3 Kc4 Nfd7 Be2+ Kg2 Rb5 f1Q Ba3 f3 Rb7 f2 Kd5 Ne5+ Bd6 Bh2 Ng5 Nd2 Nd1 Bg3 Nf3 Qg1 Kc5 f1Q Rc1 Bg4 Bb3 Bh5 Bc2 Qdg5 Ra7 Qg7 Be7 Rg8 h8Q Bh4 Rb7 Beg3 Qh7 Rh8 Rb6 Qff2 Re6 Qff1 Nh2 Nef3 Ng4 Qff2 Nf6 Qff1 Bc4 Qff2 B4b3 Kf1 Nd7 Qfg2 Ba4 Qh3 Re5 Qe6 Bd6 Qe8 Bab3 Qd8 Re8 Bfe7 Be6 Rf8 Bg4 Rf5+ Kb6 Re5 Bb4 Bd6 Bc3 Ba3 Bb4 Ne1 Bf3 Ra7 Bh1 Nef3 Bb3 Qc8 Rc6 Qd8 Bd5 Rb7+ Kc5 Rb6 Kd6 Rb5 Bb3 Rbc5 Ba4 Rc1 Bc2 Qc8 Nf2 Re1 Nd1 Re6+ Kc5 Qb7 Qf5 Qa8 Qh7 Re5+
1q6/brPqPNN1/1brn2R1/1B1k4/2bp1q1B/1KP1qrp1/R2Qn1b1/4N3 w - - 0 1 illegal: Other
2r2Nn1/1Rp4P/q2prB2/1q1P2Qq/k2b1N1K/2PnN1r1/q1bR2b1/2B1b3 w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 a3 fxe4 Ba6 h5 Bc4 hxg4 Ba2 b3 Qf3 bxa2 Qe2 Nc6 Qd1 Nb8 f4 g5 Kf2 b5 Kg3 e5 h4 e3 d4 b4 f5 d6 f6 Kd7 a4 Kc6 f7 e2 a5 Kb5 d5 e1Q+ Kg2 e4 h5 b3 a6 g3 a7 g4 c3 b2 h6 e3 h7 e2 Rh6 Nd7 Qc2 Qe8 Rh2 Ne5 Qd3+ Ka4 Bf4 Qb5 Na3 b1B Qd1+ Bc2 Rh4 Bg7 f8B Qd2 Qc1 e1B+ Ne2 Nd3 Nc4 Bd4 Rb1 a1Q Be7 Ba6 Rh1 Re8 Bf6 Re6 a8N Qd1 Bd2 Qa2 Ne3 Bc8 Rh2 Bd7 Kg1 g2 Nf4 Qf3 Rb3 Qh3 Rb1 Qh5 Rb2 Qa6 Rb7 Bc8 Rh4 Bd7 Kh2 g3+ Kh3 g1R Nb6+ Kb3 Nbc4+ Ka4 Ne5 g2 Neg6 Nh6 Qb1 Rc8 Bc1 Ng8 Nf8 Rf1 Bg7 g1Q Bf6 Rf2 Qb6 Rg2 Qb1 Qf1 Qb2 Bb3 Qd2 Rg6+ Qg2 Qfe2 Qg5 Bc2 Qe5 Rg2 Qf5 Qf1 Qg5 Rg3+ Kh2 Re5 Nfg2 Nc5 Nf4 Qfb5 Rh3 Ree8 Rh4 Bh3 Rg4 Rf3 Rg2 Nd3 Rf2 Re6 Rd2 Rf2+ Kg3 Bg2 Ra7 Qh6 Rb7 Rf3+ Kg4 Qg6 Nd1 Qge8 Ne3 Rg3+ Kh4 Qh5+
nb2r1q1/q1pPn2R/3P1KQr/3Nn1pN/BBN3rn/5b2/R1P5/1k1rb3 w - - 0 1 illegal: Other
2R1BN2/1P1b1R1q/np3nPb/1bBQ2q1/2N4k/P4q2/2Kpnr2/b1r1q1R1 w - - 0 1 illegal: No proof kernel
5RKb/Pbn4B/2pnp1Q1/1r1R3q/1q1nRPq1/k5n1/r3NPN1/B1b4q w - - 0 1 illegal: Other
6rN/pbk1n2R/1n2q2R/P7/5K1P/4nQNp/PBB2bNr/1bqb1nr1 w - - 0 1 illegal: Other
1BnR1rBq/p2bbbR1/1n1QP3/Nb5P/8/q1P1R2N/k3r1Kp/n2q1n2 w - - 0 1 illegal: No proof kernel
k4q1N/p2P1p2/bq1br3/NBRb1P1n/1n1K3q/1B6/B2P1r1Q/1q1nnR2 w - - 0 1 illegal: Other
qk1N4/p1p1Rnr1/1rr3n1/qbB1B2P/P2P2q1/Kq2bN1n/2B1nQ2/7R w - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 f5 Nc3 f4 Qf3 hxg6 Qd3 g5 Qg3 fxg3 Nb1 g4 Kd1 Kd7 Kc2 e5 d4 g5 a4 c3 Kb3 g2 f4 c2 h4 e3 f5 e4 h5 e2 f6 e1Q f7 e3 Rh3 g3 Ba6 e2 Rh1 g4 Ra3 Qc3+ Ka2 e1Q b4 Bh6 f8B Rh7 b5 Qb3+ Ka1 Nc6 b6 Be3 b7 Nce7 b8Q Qa5 Bc4 Ba6 Be2 Nh6 Nc3 Ng6 Bd6 Bb5 Bd1 Rg7 Bb2 Nf7 Nf3 g1Q Na2 g2 Bc3 g3 Bcb4 c1N Qb6 Kc8 Bc2 Rb8 Bbc5 Qe8 Qc6 Rb6 Nb4 Kb8 Be5 Qc8 Qf6 Ne2+ Ne1 Qb7 Qf2 Qa8 Ra2 Rc6 Rb2 Rb6 Rb1 Rc6 Nf3 Qd1 Re1 g1R Rc1 g2 Rb1 Qe6 Kb2 Qg4 Ka3 Rf1 Ra1 g1N Rc1 Rb6 Rb1 Nh3 Nc6+ Kc8 Nd8 Kb8 Rb3 Qd3 Ra1 Rb1 Rc3 Rb4 Rh1 Qd1 Rd3 Qb1 Rdd1 Rc4 Rde1 Qd1 Be7 Rcc6 Bc5 Qd3+ Ka2 Bh6 Bed6 Nef4 Re7 Ne2 Be5 Be3 Kb2 Qc4 Ka3 Qb3+
1Br1b2r/8/2n1QRBb/n1nN2N1/p6p/KR6/nPPn1Prn/2kr1Nq1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Kf6 g5+ Kf5 g6 Kf4 g7 d5 Bc4 e5 Qh5 a5 Bf1 d3 Kc3+ d2 Ra2 a3 Kb3 a4+ Kc3 e3 Rh2 d1R Rg2 d4+ Kc4 e4 Rg3 h3 Nd2 e2 Qa5 e1N Qh5 d3 Qc5 h5 Kb4 h4 Ngf3 h2 Ra1 h1R Rg1 e3 Ra2 e2 Rg2 Rg1 Ne5 Na6+ Kc4 Nf3 Nf7 e1N Qa7 Qg5 Kc3 Ne7 g8N Nh2 Qb7 Nef3 Nc4+ d2 Ne3 Nc6 Ne5 Nc5 Bb5 Bd7 Qb6 Bh6 Bd3 Rc8 Bg6 Be8 Nf1 Qg4 Rg3 Rg2 Nf7 Qg5 Ra1 a2 Ne7 Qg4 Rb1 a1N Ng5 Nab3 Ra1 Nba5 Ra3 Qe6 Rb3 Qe1 Ne3 Qg1 Nf1 Nfe5 Re3 Nec4 Re6 Kg4 Qa6 Kf4 Nd5+ Kg4 Ne4 Kf3 Rf6+ Ke2 Ng5 Nb8 Kb4 Re1 Qb6 d1N Ne6 Nc3 Qa6 Kd1 Bf4 Nd2 Ka3 Kc1 Ng5 Rd1 Qe6 Nbc6 Bb8 Na2
1QnRB2q/3b2r1/1N2N1PB/8/1P1rnnBb/1K1Pkpp1/1Rn5/1nr3rn w - - 0 1 illegal: No proof kernel
1nn3b1/1kb4n/6Pr/P5BB/n3R1qp/b2B1n2/npK1rNP1/1N1Rb2Q w - - 0 1 illegal: Other
q1b3b1/2bN1Qn1/2np4/p4bnK/rBBPbR2/1RbP1B1n/3P1N2/6kr w - - 0 1 illegal: Other
2n1N1b1/1nn2n2/N1P4p/3QB1qn/RB4rR/bP5P/p3K1bR/r1n3kb w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 f5 f6 Bc4 fxe5 f6 e4 Be6 Na6 Bg4 Nb8 Bf5 gxf5 c4 Kf7 g4 Kg6 f7 d5 h3 a5 g5 e5 c5 a3 c6 d3 Bd2 a2 Rh2 e3 Nc3 a4 Qc2 Kh5 g6 Kh4 g7 Kg3 Nb5 f4 Bc1 a3 Kf1 h6 Nc3 e2+ Ke1 f3 Nb5 e4 Qc3 d4 Qd2 Qg5 Qc2 Na6 Qc5 Be6 Qf5 Ne7 g8R Nc7 Na7 Nc8 Rh1 Kg2 Rb1 a1N Bd2 Nb3 Rc1 Nc5 b3 Nb7 Rg6 Rg8 Bf4 f2+ Kd2 f1N+ Ke1 Ng3 Nb5 Nh5 Kd2 e1N Qc5 e3+ Kd1 d2 Ra1 Nd3 Qc3 e2+ Kc2 d1B+ Kd2 e1N Qa5 Bf3 Nd6 Ne5 Ne2 d3 Nd4 Be4 Ke3 d2 Ne8 d1B Rh2+ Kg1 Nc2 Bg2 Nb4 N1d3 Na6 Be7 f8B Nf7 Ra2 Bdf3 Qd5 Bh1 Kd2 Bfg2 Ke2 Bc5 Be5 Rg7 Nb4 Ra4 Na6 Rg4 Rc2 a2 Rc4 Ba3 Ra4 Rg8 Rf6 Rg6 Rff4 Rf6 Rfb4 Rf1 Rd4 Ra1 Rf4 Bf5 Rfe4 Bh7 Bb4 Bg8 Rf4 Rg3 Rh4 Rg4 Bf8 Ndc5 Bfd6 Nd3 Bb4 Nc1+
k2b3N/1q1r2r1/1pbP1b2/B3n2b/4Rp2/Qr1P3P/2nb2B1/RKBNb2r w - - 0 1 illegal: Other
2R3nr/p2R1Q2/b1Pn3k/bN2rp2/2r1Pnn1/1BrqR1nN/1B3P2/2nK4 w - - 0 1 legal: proof: d4 b5 b4 c5 h4 cxb4 a4 bxa4 h5 e5 h6 exd4 Rh2 gxh6 Rh4 h5 Rh1 h4 e4 f5 c4 Kf7 g4 Kg6 c5 d5 c6 h5 g5 a3 Bb5 d3 Ba6 h3 Nd2 a2 Ndf3 h2 Bd2 b3 Bb7 d4 Bb4 h4 Qc2 h3 Rc1 a1N Qd1 d2+ Ke2 b2 Rb1 d3+ Kf1 Nd7 Bd6 Nb3 Nd4 Ndc5 Qf3 d1N Ke1 d2+ Ke2 Nc1+ Kf1 Nc3 Ra1 b1R Qg2 d1N Ke1 Qb6 Qf3 Rb3 Qd3 Nb5 Rb1 Ne3 Bf4 Ne6 Be5 Rc3 Rb3 Bb4 Qc4 Nf4 Ba6 Nd6 Nb5 Ng4 Kd1 Ba5 Bg7 Kh5 g6 Bb7 Qe6 Re8 Qf7 Re5 Ra3 Rc4 Re3 Rc3 Bf6 Kh6 g7 Bc8 Nf3 Qb8 Ng5 Bb7 Rhe1 h1N R1e2 h2 Rd2 Ng3 Nh3 Nc8 Rd7 Nd6 Nc7 Bc8 Bc4 Qb1 Nb5 Ba6 Bb3 h1R+ Re1 Ne7 g8R Rc4 Rc8 Ng8 Ng1 Rh3 Re3 Rec5 Bb2 Re5 Re1 Ngh5 Re2 Rhc3 Nh3 Ng3 Re3 Qd3+
2kqbn2/ppr2nB1/1nNQn2n/P4PbR/3Nb2B/P1b5/K1R1B2r/6n1 w - - 0 1 illegal: Other
1B5q/2Rr1bNN/2pbP2p/2pq4/K1n5/Qrq1PRBk/5n1P/1b2n1Rr w - - 0 1 illegal: Other
BR2q1nn/1N1K1NPp/2r1P1BP/q3Qp2/5R1b/1qB2np1/1br2r2/1b1k4 w - - 0 1 illegal: No proof kernel
1N1rrrBn/np1q3P/RRR3bp/3Nkpb1/1B3b2/3P1Q1q/2P4q/2n4K w - - 0 1 illegal: No possible last move, all moves rejected
5b2/2n2bn1/5b2/1P1BPKp1/rRpBR2Q/1b2b3/P1qkNR1p/1q1rN1r1 w - - 0 1 illegal: No proof kernel
1B3r1N/1kq3R1/rn1Q1R2/P2N3P/PK1bBqp1/2prpRq1/q3n1q1/7b w - - 0 1 illegal: Other
2q2q2/1KB1q1bR/1P1P1pp1/2b3k1/b3Q2r/nP1n1Bpr/5bR1/2Nb1NR1 w - - 0 1 illegal: Other
q1K4b/B2r1Bk1/Pr1p1R2/NR2b3/7p/Pn1bb2P/Q1p1q2R/1Nbr1n2 w - - 0 1 illegal: Other
n1BqnN1b/1Q1pNP1P/r3bR1r/2Kb4/B1p1q3/3p1Pb1/k2BbR1n/8 w - - 0 1 illegal: Other
B2q4/1nPqr3/P5qN/qR1P2rb/1R3r1B/1Qpn1pp1/R1q2b2/4kNK1 w - - 0 1 illegal: No possible last move, all moves rejected
1R1rQr1K/PN1r1p1R/3np1qb/1p4bb/1Nk1r3/2q1PBN1/1Br1n2P/8 w - - 0 1 illegal: No possible last move
1n1K1N2/p1Rr1NnP/1PrnB2b/R2pb2Q/1pBkbb2/Pb1q4/8/2R1q3 w - - 0 1 illegal: No proof kernel
1q4r1/pP1N1P2/R1P2r2/pK3b2/1N1k3B/1nr1q1bb/BR1np2R/3r1r1Q w - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 d4 cxd4 a5 g5 a6 gxh4 Rh2 bxa6 Rh1 a5 Kd2 Kf7 f4 Ke6 b4 Kd5 g4 e5 g5 h5 b5 h3 g6 d3 Kc3 e3 b6 e4 f5 e2 b7 e1Q+ Bd2 h4 f6 h2 g7 e3 f7 h3 Ra2 Nf6 g8R Rh6 Kb3 Na6 Ka4 Kd4 c4 d5 c5 Bd6 c6 Bg3 Rb2 Bf5 Bc1 d2 Rb5 Nc5+ Ka3 Nfe4 Rg6 Nb3 Ka4 Qb8 Rg5 Rf6 Bc4 e2 Rg4 Qf2 Rb6 Qe3 Qe1 d1B Ra6 Bc2 Na3 Be6 Rg5 Ned2 Kb5 Bcf5 Rh5 Ke5 Rh7 d4 Nc2 d3 Nf3+ Ke4 Rf1 h1R Nb4 h2 Ne5 Kd4 Nd7 Bh3 Rf5 Rf1 Ba3 Rf3 Qh1 Rf1 Rc5 Bef5 Be6 Rf3 Rc2 Rf1 Rh6 Rc1 Rb2 Rc3 Qf1 h1R Bc4 Bg2 Rh2 Bgh3 Qf3 Rf1 Qh1 Nf3 Be6 d2 Bc4 d1R Bd5 Nbd2 Ba2 Nb3 Nd5 Qd2 Be7 Qe3 Nb4 Nfd2 Bd8 Qd6 Be7 Rg8 Bd8 Qb8 Be7 Rfg6 Bh4 Rf6
1r2B1Rq/B6k/1bN3n1/Npp1Q1RP/4Pp2/1q3nKb/2nq1Pn1/Nr1b4 w - - 0 1 legal: proof: d4 e5 g4 exd4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 h4 b5 e4 d5 a4 g5 a5 g3 h5 c2 a6 g4 a7 g2 Nf3 g1Q Ra3 g3 Bd2 c1Q Ra4 g2 Ra6 d3 Bg5 d4 Rh3 d2+ Ke2 d3+ Ke3 Nc6 Kf4 Bc5 Ne5 Kf8 Ng6+ Kg7 Re3 Kh7 Bh6 Bb6 Qe1 d1N Ne5 d2 Rg3 Nge7 Rg8 Ne3 Na3 d1B Bc4 Nb4 Nc6 Bh3 Kg3 f5 Bf7 Nbc2 Be8 Ng6 Qc3 Qcd2 Qe5 Qge1 Bf8 g1N Bc5 Nf3 Bd4 Rb8 a8N Ng2 Bc5 Qee3 Ra7 Ba5 Nb6 Qb3 Nbc4 Bb6 Rb7 Ra8 Rb8 Ra4 N4a5 Rb4 Be3 N6f4 Rg4 Ng6 Rg5 Rg8 Ra8 Qf6 Bd4 Qh8 Rb8 Qa2 Be3 Rb1 Ra8 Qb3 Bc5 Nce3 Nc2 Rf8 Na1 Nc2 Bf7 Rc8 Be8 Rb8 Nb7 Ba5 Ba7 Bb6 Nba5 Kg8 Nd8 c5 Ndc6 Kh7 Bd7 Rb7 Rg8 Rb8 Be8 f4+
R2qqr1R/2q5/1nBQ1pkP/2N3r1/1nbp4/Rp3nb1/1KPP4/BN2bn2 w - - 0 1 legal: proof: g4 c5 f4 h5 b4 hxg4 f5 cxb4 f6 a5 e3 a4 Qf3 exf6 Qe2 f5 Qc4 f4 Qb3 axb3 Kd1 d5 a4 b5 h4 g5 a5 d4 h5 g3 e4 b2 h6 g4 a6 g2 a7 f3 e5 g3 e6 b3 e7 f2 Nc3 b1Q Ra2 b4 Nf3 g1B Ne5 g2 Nc6 f6 Bb5 Kf7 e8R f1N Rh5 b2 Rhe5 Nd7 Bd3 Ba6 Bh7 Ne7 Re2 Nd5 R2e5 Bc4 Re4 Rg8 Na5 N7b6 Nb7 Bd6 Ra3 Bg3 Nc5 Rg5 Rh8 B1f2 Ree8 g1N Be4 Be1 Reg8 Rb8 a8Q Nf3 Qc6 b3 Qd6 Nb4 Bb7 Qa1 Bc6 b1Q Re8 Qbb2 Nb1 Qc3 Bb2 Kg6 Kc1 Qe3 Ref8 Qee8 Bc3 Qa2 Ba1 Rc8 Ra7 Qa6 Kb2 Qb7 Ra8 Qg7 Rf7 Qh7 Rfa7 Qhc7 Ra3 Qed7 R3a6 Q8e7 Nc3 Rf8 Ra3 Qdd8 Nb1 Qee8
2r5/8/BRb1P1R1/1Qq2NBP/rnrp1P2/1qRK1np1/1k3p1q/qN3nb1 w - - 0 1 illegal: No proof kernel
2bb1R2/qRN1qrr1/3P1Bkp/p4b2/1nNpNnq1/3P1P2/B1Q2n2/2K1b3 w - - 0 1 illegal: Other
q2rNbn1/5r2/P1k1p1Qp/bRP1q2K/3P2R1/B2R3b/r1pn2b1/2N1qB2 w - - 0 1 illegal: No proof kernel
RK6/4qNnp/2Pp1n2/1b1p1B2/QrRP1b1n/q1qqb3/PkB3N1/3B3r w - - 0 1 illegal: No proof kernel
RNb2r1B/n3b1pn/r3P3/qq1P4/bRqq4/2pQ1B2/N1P1p2k/4K1Nn w - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 e4 axb4 e5 h5 e6 hxg4 Bb2 d6 Be5 dxe5 d4 Ke7 a4 Kd6 h4 f5 h5 b5 a5 c5 d5 f3 h6 f2+ Kd2 g3 a6 g2 h7 e4 a7 Ke5 Ra4 Kf4 Ra5 Kg3 Rh4 c4 Bd3 f1N+ Ke2 e3 Na3 b3 Qc1 f4 Nh3 g1Q Qd2 c3 Nf2 b4 Nb1 f3+ Kd1 b2 Bg6 b3 Ra3 Be7 Re4 Kh2 Ra5 Nc6 Ra2 Qa5 Nh3+ f2 Nf4 Nf6 Bh5 Rf8 h8B Nh7 Nd3 Qg4+ Qe2 Ng3 Rb4 Qd4 Nd2 b1Q+ Nc1 b2 Bf3 Nh1 Qd3 f1B Ke1 Be2 Ra3 Qa2 Raa4 Qac4 Na2 Rb8 a8N Rb6 Nc7 Na7 Na6 b1Q+ Nc1 Qb2 Nb8 Ra6 Na2 Qbb3 Ne4 Qcb5 Ng5 Q3c4 Nh3 Bf1 Ng1 Be2 Bg2 Bh5 Bf3 e2 Ra3 Be8 Raa4 Qd7 Rb7 Qdb5 Rb4 Nc6 Ra7 Bed7 Ra8 Na7 Ra4 Bc6 Rb4 Qb7 Qe4 Ba4 Qd3 Qbb5
r1N3bq/2n2PqP/8/1kNp4/3q3r/RBp2nRN/n3KBpP/bQn4r w - - 0 1 illegal: Other
rb2bn1b/BBr1p2q/1P1p4/Qp6/rq1NNBq1/1PrP3n/2RR4/2K1k3 w - - 0 1 illegal: Other
5n2/1rbrpr2/1pk3Pn/1N2P3/1p1Q1RBB/K2P1b2/bnN1R1q1/2n1q1B1 w - - 0 1 illegal: No possible last move, all moves rejected
1r1q1k1b/1B1npP2/b2q2P1/3N4/n1pBQ2P/2Rb3N/rR1pnK1n/1r3R2 w - - 0 1 illegal: No proof kernel
2b1r3/n1Qp1bN1/5B1k/r1n2PR1/2r2bbB/NR2pq1q/1P1RPp1K/1q6 w - - 0 1 illegal: No possible last move
8/1npPqb2/RNprk3/1Pr1Nb2/4q1N1/5K1b/p1P1n1Qq/R1bB1B1n w - - 0 1 illegal: No extended proof kernel
3N1Q2/rp1n1bq1/Pp2qP2/P3qr2/1b1N2k1/1BB1r2p/2N3bn/1r1K1R1R w - - 0 1 illegal: Other
b5n1/1p3p2/7N/2PRRN1B/Kq1p1rnP/Br1n3b/2P1rB1b/q2knQ2 w - - 0 1 illegal: Other
1K2rqRn/P1Br1qp1/1B1q2pN/3PP1nB/n1b1N3/b2k4/Rp6/n5bQ w - - 0 1 illegal: No possible last move, all moves rejected
1r3n1N/1nb1rpP1/1q6/1brpr1r1/2RPk1pb/1Q6/2R2rPK/1N1B1BN1 w - - 0 1 illegal: Other
2r1BbN1/Q3PbN1/1R2n3/4P3/1n1RpnpK/1pN5/P1r2qkr/n3Bnr1 w - - 0 1 illegal: Other
N1rN2bb/n3p2R/3r2R1/1P1QN2q/BP1K3n/P1bp1p1k/3rb3/Br2r3 w - - 0 1 illegal: Other
N4b1R/1r1BpPp1/1rpN4/3rnbRn/q3n1Pn/1K1Q4/4rNPk/5r1B w - - 0 1 illegal: Other
1b5r/1p5q/k1r1b1N1/3pRQnb/1nnP2Bp/1Kn1P1N1/3BP1b1/1b1N3R w - - 0 1 illegal: Other
1BRQN3/3r3R/n1P1n1k1/1p1B1r2/Nbrn1Pn1/bpr1p2q/2PK2b1/2R5 w - - 0 1 illegal: Other
5b1K/3n1qp1/3b3B/r1P3pk/5R1N/R1bBrP1n/p1PrnnbQ/2N1B3 w - - 0 1 illegal: Other
2N5/N3nP1r/P2Q2nb/BnRpb3/B1r3b1/p1pP1K2/R1q2b2/1krnN3 w - - 0 1 illegal: No proof kernel
1k6/1N3nnB/R2K1R1p/4rq2/1Q3q1r/1pBn1P1p/N3Pq1P/1bbB1q1n w - - 0 1 illegal: No proof kernel
q3B3/3Nrr1P/P1R1n3/qb3PB1/N1pb2k1/3p2br/2Npn2Q/rR1K2b1 w - - 0 1 illegal: No proof kernel
1n3qN1/Q1r1R1P1/R2B3n/r3N2q/2bqp3/2N1p2P/1b2pPK1/b1kBq2b w - - 0 1 illegal: No possible last move, all moves rejected
1r3qR1/nB2p1r1/PQ5N/2p2r2/2Rq2BB/b1NbKpPq/2r3P1/1q2k1n1 w - - 0 1 illegal: Other
q1nkb3/N1rPrp2/nN2n3/r3B3/2B2P2/pr1QP3/RqK2pnR/2N1b3 w - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 dxc4 h5 e5 h6 e4 Qb3 gxh6 Rh2 h5 Rh1 h4 Qf3 exf3 Kd1 c5 g4 a5 d4 h5 b4 a3 e3 c3 g5 h3 g6 h2 b5 a2 b6 c4 g7 f2 d5 c2+ Kd2 c3+ Kd3 h4 b7 a4 d6 h3 Bb2 c1N+ Kc2 a3 Nf3 Ne7 g8Q Na6 b8N Bd7 Bg2 Nb3 Rc1 h1R Ng1 h2 Bf3 Nc8 Bg2 Qb6 Bh3 Kd8 Qh7 Be8 Ne2 Nd4+ Kd3 c2 Ng1 Ne6 Be5 Qb2 Ne2 Be7 Rf1 c1R Nd7 Rc7 Nc1 Rb8 Re1 Rb3+ Nc3 Rg1 Bg4 h1Q Nb6 Qa8 Be2 Rg5 Rh1 Bf8 Qf5 Rhh5 d7 Bb4 Rh2 Rg6 Rb1 a1N Bf1 Nc2 Ra1 Ba5 Ra2 Rf6 Kd2 Ne1+ Qc2 Ng2 Bc4 Bb4 Kd1 Ba5 Nb5 Be1 Qd3 Rg6 Na7 Rgg5 Bg7 Ra5 Bh8 Rhe5 Bg7 Nec5 Bh8 Re7 Be5 Qa1 Kc2 Ne6 Kd1 Qd4 Kc2 Qb2+
k3B2n/b1PbKNRr/n1NP4/3r4/rqpQqr2/P1bBB1p1/1b3pR1/8 w - - 0 1 illegal: No proof kernel
1q4b1/n1P1nn1p/1QBR4/4NPpq/1R1pnBP1/K1b5/7r/BNrr1r1k w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 h4 fxe4 a5 Qc7 h5 Qh2 a6 bxa6 h6 a5 Qg4 a4 Qf3 Nxh6 Qd1 Ng8 Kd2 Kf7 c4 Ke6 Kc2 Ke5 g4 g5 b4 a5 Kb2 d5 c5 d3 b5 d4 c6 d2 b6 Kf4 f3 Kg3 f4 e5 b7 a3+ Kb3 a4+ Ka2 e3 c7 e2 Bb2 e1N Bc3 e4 Bd3 Kg2 Be2 e3 Bb4 Nd3 Bc3 Nc6 b8B Be6+ Qb3 d1R Be1 Na7 Bc3 Qh5 Bb2 Nf2 Rh4 Ne4 Nf3 Bb4 Bc4 e2 Bd3 e1N Nh2 Ne7 Bc4 Bg8 Nf3 Nd3 Ne5 Bc3 Rh3 Kg1 Rg3+ Kh1 Qb6 Rc1 Bd5 Rd1 Nc4 Ne5 Bc6 Nf7 Ne5 Ba5 Rb3 Bc3 Nd2 Rc1 Rb1 Rd1 Ka1 a2 Rb4 Nac8 Rc1 Ra5 Nb1 Na7 Rc2 Rc5 Re2 Rd2 Re3 Rh2 Re2 Bd2 Rf2 Rc1 Bc3 Be1 Kb2 a3+ Kb3 Rd1 Ba1 Bc3 Rc2 Bd2 Rc5 Bc3 Rd5 Rc1 Rd6 Rd1 Bb2 a1R f5 a2 Ka3 Rf1 Nd2 Rac1 Nb1 a1Q+ Kb3 Qa5 Ba1 Qb5 Ka3 Nac8 Ba7 Rcd1 Qa6 Qb8 Bc5 Na7 Qb6 Qh4 Ng6 Nh6 Rd7 Be6 Ka4 Rd8 Bb5 Be1 Bd6 Qh5 Be5 Bg8 Ka3 Nf7 Bf4 Bd2 Rd5 Rd6 Ne5 Rc6 Rd6 Rcc1 Bc6 Bc3
q1B5/1rknN2Q/b3pb2/1P2Pb2/pp1P1r1r/q2Rp3/1n1R1N2/nRK2B2 w - - 0 1 illegal: No proof kernel
2K2n2/bRbB2N1/2P1pqk1/qBr2p2/2bP3n/R2Qrrpp/2B2qP1/1N6 w - - 0 1 illegal: No proof kernel
4N2K/1B1nNn1P/b4q1r/2Rb1n1p/pp1rPBP1/b1Bk3p/3q3Q/q3R3 w - - 0 1 illegal: No possible last move
N3Bq2/2r4P/1q1bpnbq/RRQnpPp1/K1r1p3/5rk1/5nP1/3N2BB w - - 0 1 illegal: Other
8/1P3nPp/2kpb3/1n1r2rN/4bp1N/PR3p1q/Qrq2BN1/n1bR1BK1 w - - 0 1 illegal: No proof kernel
1b1N1NB1/1n5Q/n1P3b1/qp4Kn/RnB2bPn/Pr2pp1k/1p3B2/5R1r w - - 0 1 illegal: No proof kernel
3b3q/pB2K3/1pr4R/k1n2pP1/n2pNbR1/2P1r1B1/1bP1b3/1bN1nN1Q w - - 0 1 illegal: Other
1bR1n3/4pQ2/2pB1p2/1R2Bb2/N1PN1K1p/2bP1r2/k1P1rn1q/n2R2rn w - - 0 1 illegal: Other
1Bbr2NN/3p4/2pP2P1/3PppK1/3n3q/R2r4/Rb1rBk1b/Q2Rrnn1 w - - 0 1 illegal: Other
4R2K/bpn1N1pP/rn1N2r1/4p1q1/5P2/krpr2P1/4bRN1/3nbBQB w - - 0 1 illegal: No proof kernel
1R1R1K1b/p1NB1p2/1rN5/1BB1n2k/3PPb2/rb2p1q1/Pp4Q1/n2nb1r1 w - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 e4 hxg4 f5 d5 f6 d4 Qf3 exf6 Qc3 f5 Qa3 f4 Qe3 dxe3 Ke2 g5 c4 b5 d4 g3 Kd3 f3 h4 g4 c5 b3 c6 f2 c7 b2 h5 b4 Kc4 g2 h6 b3 h7 g3 Rh2 Ke7 Kc5 Kf6+ Kb5 Kg5 Nc3 b1N Rh3 b2 Bd2 Nf6 Bd3 f1R Rh1 Be6 c8B Nc6 Na4 Nd5 Be2 Ne5 Bd1 Qd6 Nb6 Nb4 Be2 Bg7 Nd5 Nc2 Nc7 Bb3 Bd7 Rhc8 Bb4 Bh8 Bc5 Kg6 Nf3 g1B Rh4 g2 Rg4+ Kh6 Rg8 Kh5 Rd8 Bf2 Bd3 g1B Be2 Ng4 Ne5 Be1 Nc6 Bh2 Bc4 Rg1 Bd3 Nd2 Rc1 Na1 Rc4 B2e5 Rb4 Nf2 Bf1 Nf3 Be2 Bhg7 h8Q+ Bh6 Qg8 Bhf4 Bc4 Bh8 Qg2 Nd1 Bf1 Qg6 Bc4 Qg3 Be2 Ba4+ Kc4 Rcb8 Kd5 Rb6 Bb5 Ne5 Kd6 Bb3 Ke7 Rab8 Kf8 Ra6 Bd3 Rb5 Bc4 Rba5 Rbb8 Ra3 Bb5 Rb6
b2b2B1/4q3/Pnn2P1k/Kp1N1np1/BPpr1n2/r6q/1p4NN/R4QnR w - - 0 1 illegal: No proof kernel
3r1q1N/2p1n2n/2PR3p/B3b2B/BRn2k1n/1PQK1n2/1p1rp2P/Nb1q4 w - - 0 1 illegal: No possible last move, all moves rejected
NnBN1Q2/k1p5/2Pp1rKp/P5bn/n4P2/3RNbq1/B2n1p1R/n4q1r w - - 0 1 illegal: No proof kernel
3N2nk/q1Q2K2/B1n1prP1/B1r1P3/p7/N1bp1q2/N4pP1/r2bRRrq w - - 0 1 illegal: Other
2b2B1q/B4K2/1p3p2/2NnPk2/B1p3np/Rnrbb2r/n3PP2/R3Q1Nq w - - 0 1 illegal: Other
3B1nK1/2Q5/p1pP1b1N/1Npb1PP1/k1rp2q1/n1r1RnNq/Rrn5/1B6 w - - 0 1 illegal: No proof kernel
2bb1Nq1/3n1pn1/R2BB1p1/PPnK4/N1r3q1/1R2P2Q/p3p2r/1bNb2k1 w - - 0 1 illegal: No proof kernel
B2R1nRB/q1Qp4/nq1r4/nP1bK1b1/P3pp2/rB3P2/3p2Nn/2N3kr w - - 0 1 illegal: No proof kernel
5n2/p1Nr3p/np1R2qB/2Pb2Q1/1p1B2K1/P1r1R2P/N1r1qk2/2br1n1R w - - 0 1 legal: proof: e4 d5 b4 dxe4 f4 exf3 Kf2 c5 Bd3 cxb4 Ke1 g6 Bf5 gxf5 Kf1 f4 Kf2 Na6 Ke1 Nb8 c4 Kd7 Kf2 Kd6 d4 e5 g4 f5 d5 Kc5 h3 b6 a3 e4 d6 e3+ Ke1 e2 Kf2 e1R d7 Qe8 d8B Bb7 g5 Re3 g6 Nf6 g7 Rc3 g8R Bh6 Rg5 Nfd7 Rg4 Na6 Bb2 Qg6 Ne2 Rc8 Qg1 Nf8 Qg2 Bd5 Nc1 Kd4 Kf1 Ke3 Bg5 f2 Na2 Rd8 Rh4 Rd7 c5 Rg8 Qg4 Rc2 Nbc3 Rgg7 Ne4 Rc3 Kg2 f1R Kh2 Rd1 Nd6 Kf2 Nb5 f3 Nc7 f4 Re1 Rge7 Re3 Re4 Qf5 Rec4 Rg4 Rc2 Bd4 R4c3 Rg2+ Kf1 Rd2 f2 Qg4 f3 Kg3 Kg1 Qf4 f1Q Kg4 Qe2 Qe5 Kf2 Rdd3 Qe4+ Bf4 Qg6+ Qg5 Rdd2 Rh1 Rd1 Bfe5 Kg2 Bg7 f2+ Rf3 f1N Re3 Qf2 Rf6 Qe1 Rfe6 Kf2 Rd6 Qe2+ Rf3+ Kg2 Ne8 Rc4 Nc7 Qf6 Qh5 Bc1 Bh6 R4c3 Qf5 Qg6+ Qg5 Qe1 Re3 Kf2 Kf4 Qd2 Kg4 Qe2+
r6k/p1K2pq1/1nBPNbn1/1PQ1q1qb/2q2RN1/3P1pR1/4prn1/6BB w - - 0 1 illegal: Other
R2R4/1k1N4/p4b2/1ppP3b/b1Pr1p1Q/1nK1BN2/pB3nP1/q2Rrr1n w - - 0 1 illegal: No proof kernel
q2r4/b6P/2Np1BBk/p1r1bb1p/NPR2q1p/4PnQ1/qp1R1K2/1R3n2 w - - 0 1 illegal: No proof kernel
1B3k2/bB4pR/3r1P2/r1p4p/r1n3bq/nqp1R2p/1P4NP/2BnNQ1K w - - 0 1 illegal: No proof kernel
3qn2K/1b1B2pp/1Rq1Q3/3qp1N1/1BPR4/p1PPn3/B1p1r3/1nkrbN2 w - - 0 1 illegal: Other
nr1r1bb1/1pp2BR1/1P4Rq/2q1PK1p/n3P1p1/2r5/pk2B1QN/1N3R1q w - - 0 1 illegal: Other
2k5/pRbn3N/3R1Qb1/r1qB3R/p1BNK1n1/bq2pP1r/Pp1p2P1/6q1 w - - 0 1 illegal: No proof kernel
nbR4N/1P1p4/BPb3rp/p1R1Q2p/2BPn2p/Kbr3Nb/5kbq/6N1 w - - 0 1 illegal: Other
nK1rB1n1/1NP1qP2/4b1pp/5k2/1npp4/1b2bP2/Q1pB1RNr/1R2nN2 w - - 0 1 illegal: Other
1nbBrqN1/k1P1PKb1/1N1Rr1p1/Pn6/6n1/1bp1pB2/1Rp1Bp2/6nQ w - - 0 1 illegal: No possible last move
1B4N1/Bp1Pp1p1/2k4K/rr2rpnR/NRqbb3/2n3P1/p2P1pb1/3Q2B1 w - - 0 1 illegal: Other
N1Q1Bbr1/1RNnQ3/P5p1/bP1Rpb2/1q2P2q/1n1qrB2/2K2k2/4q3 w - - 0 1 legal: proof: f4 d5 c4 g5 fxg5 Bg7 cxd5 Bh6 g6 Bf8 d4 c5 g4 Bd7 g7 Be6 g5 Bc8 g6 hxg6 b4 cxd4 a4 a5 Ba3 Qd6 Qd2 Qd8 b5 b6 Bb4 axb4 a5 b3 a6 Bh3 Qa2 Bc8 Qa5 bxa5 Kd1 Kd7 h4 Kd6 e4 Kc5 d6 f5 h5 e5 d7 d3 h6 Kd4 h7 Ke3 Bg2 a4 Na3 f4 Rh2 f3 Bh1 f2 Rh4 d2 Rg4 b2 Rh4 f1Q+ Kc2 Nh6 g8B Qe1 Rb1 Kf2 Rd1 Nf5 Nc4 a3 Bf7 a2 Nb6 a1B Bf3 Qe7 d8Q Nd7 Rh1 Qh4 Be8 Rg8 h8Q Nd4+ Kb1 Nb3 Qe7 Ra7 Na8 Rc7 Ne2 Rc3 Nf4 Rd3 Ne6 Re3 Rc1 d1Q Nec7 Qde2 Rd1 Qb4 Rd5 Qd3+ Ka2 Qe1 Ka3 b1Q Rh3 Qg5 Rh7 Bc3 Rf7 Ba5 Rh7 Qbd1 Kb2 Qb4 Rf7 Qde1 Qh3 Qdf1 Kc2 Qh4 Qhe6 Nb8 Qc6 Bf5 Qb7 Nd7 Qc8 Nb6 Rf6 Nd7 Rb6 Qfh3 Rb8 Qhf1 Rb7 Qd3+
2k5/1RqN1qr1/N1b4n/qp1BB2Q/1p4q1/4qRrP/P1b4P/Kr4Q1 w - - 0 1 legal: proof: d4 a5 c4 b5 b4 axb4 f4 c5 f5 cxd4 f6 exf6 c5 f5 Kd2 f4 Ke1 Bd6 Nf3 h5 Nc3 Bc7 Qb3 Bb6 cxb6 Na6 Ng1 Nc5 Nb1 Ne6 Qh3 Ng5 Qg4 Nh3 gxh3 hxg4 Kd1 f5 Kc2 g5 Kb2 d5 e4 Kd7 e5 f3 b7 f4 b8Q f2 Nf3 d3 Qa7+ Qc7 Nh4 d4 Qa3 f3 Rg1 g3 Rh1 d2 Qa4 d1Q Qc2 d3 Qe2 g2 Nd2 g1Q Ne4 g4 Nd6 d2 Bg2 f1R Qe1 f2 Ng6 g3 Ne8 Qg4 Bd5 d1B Bf4 g2 Rc1 Ra7 Ka1 Bb7 e6+ Kc8 e7 Bc2 Nf8 Nh6 Nd7 Rg8 Be5 Bc6 Qd1 Qa5 Nc7 Qc4 Qe1 Rg3 Na6 Rc7 Qd1 Re1 Qh5 f1Q Qg6 Qe3 e8Q+ Kb7 Qh5 g1Q Qeg6 Qf7 Qgg4 Qg2 Rf1 Kc8 Qd4 Qge4 Rf3 Qg4 Qd1 Rh1 Qg1 Qcc5 Nf8 Re7 Nd7 Qd6 Re1 Qdc7 Rd1 Re8 Rd4 Rg8 Rdf4 Rg7 Rf6 Bb7 Rb6 Bc6 Rb7 Bb1 Qf2 Rd1 Qg1 Bc2+ Kb2 Rd3 Ka1 Rb3 Qb1 Rb2 Qg1 Rb1+
1n2Kb2/B2rq1q1/3N3b/nn5R/4P1r1/R1Pkn2Q/4n1P1/QNq2rbB w - - 0 1 illegal: Other
brB3Kr/R1Q3n1/8/1knPB1r1/r3nP2/1N1RQP2/1nN2qb1/2rq1b2 w - - 0 1 legal: proof: c4 d5 e4 dxc4 h4 g5 b4 gxh4 g3 a5 e5 axb4 e6 Bh6 Be2 Bf4 gxf4 fxe6 Bd3 e5 Bf1 e4 Ke2 Kd7 Ke3 Kc6 a4 b5 d4 h5 a5 e5 a6 b3 a7 h3 Ra5 h2 Bh3 b2 Nc3 b1R Qd2 h4 Bf5 b4 Nd1 c3 Nb2 h3 Ne2 c2 Ng1 b3 Qd3 Ne7 Bd2 c1R Be1 Ba6 Qf1 Nd7 Qg2 Rc5 Ra2 Kb5 Bh7 Nf5+ Kd2 e3+ Kd3 e2 Ke4 Ng7 Ba5 e1N Nd3 b2 Nb4 Nd3 Ke3 e4 Qg6 Rg5 Ne2 c5 Qd6 c4 Nc1 c3 Nc2 N7c5 Rd1 h1B Nb3 h2 Qc7 Bg2 Bf5 h1B Bc8 Ra1 Bb6 Rb8 a8Q b1N Qaa7 Nb2 Rd3 Nd2 Ra3 Qd7 Ra4 Qg4 Ra2 Qd1 f3 Bb7 d5 Ba8 Kd4 e3 Ba5 e2 Bb4 e1Q Ba3 Nca4 Bd6 Ne4 Be5 Nac5 Ra3 Bh3 Ra2 B1g2 Qa3 Nb7 Qae7 Bf1 Ra7 Bhg2 Qa3 Na4 Qc1 Nb2 Qe3 Qf2 Bd6 Nf5+ Ke5 Ra4 Ke6 Nbc5+ Kf7 Ng7 Be5 Rh1 Ne1 c2 Kg8 c1R Nc2 Rh8+
q1r1N1Q1/1r4qb/P1krn1QB/6Nq/KB4R1/r1q2Pq1/2r4P/R4qn1 w - - 0 1 legal: proof: g4 f5 b4 a5 d4 axb4 g5 c5 e3 cxd4 g6 e6 Kd2 Bd6 Ke1 Bf4 exf4 hxg6 Bb5 g5 Bd3 g4 Be4 fxe4 Kd2 b5 c4 d5 Kc2 Kd7 Kb3 g5 a4 g3 a5 e3 a6 g4 c5 e2 f5 e1Q f6 e5 f7 d3 f8B g2 Bb2 d4 Qf3 d2 Qd1 g3 Ra4 e4 Ra1 e3 Ra3 d3 Qc2 d1R Bd4 d2 Qc4 e2 Ra1 Nc6 Nf3 g1Q Nh4 g2 Qc3 Ne5 Ra2 Qgf1 Bg7 g1Q Qc1 Nh6 Ra4 Nf3 Bf8 Nf7 Bh6 Kc6 Bb2 Qg7 Ra5 N7g5 Qc4 Ng1 Nf5 Ne6 Ka2 b3+ Ka3 b4+ Ka4 Rg8 Bf6 b2 Be7 b3 Nc3 b1R Ng3 b2 Qd3 Ra7 Qc2 Rb7 Nce4 Rbc1 Nd6 b1R Ne8 R1b3 Qg6 Rc2 Ne4 Bd7 Ng5 Qa8 Rb5 Rf8 Rb4 Rh8 Nc7 Rc8 Rg4 Be8 Bf8 Bf7 Be7 Bg8 Ne8 Bh7 f3 Qg3 Bf8 e1Q Bd6 Qfh3 Bf8 Qh5 Be7 Kd5 c6 Qee5 c7 Qc3 Bb4 Kc6 Ne4 Rdc1 Ng5 d1Q Qf7 Qf1 Qg6 Rd8 c8Q+ Rc7 Qb8 Rb7 Qf4 Rcd1 Qf8 Rc8 Qg8 Nh3 Rg1 Rd6 Rg2 Ng1 Rd2 Qg3e5 Rd1 Qg3 Ra1 Ra3+
1R1N1nbK/2nBq1Pn/4P1q1/NP2n1Q1/1k1rB2R/q3q1q1/r5Q1/2q1n3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 b5 Be3 bxa4 Kd2 f3 Bf4 Be7 g6 Bg5 hxg5 exf4 Bg2 f2 Bh3 Nh6 Bf1 Ng8 Kd3 Ke7 Ke4 Kd6 Kf5 Kc5 c4 h5 e4 a5 g7 d5+ Ke5 f5 b3 a3 g6 a4 Rh4 a2 Qg4 d3 Qe2 d4 Bh3 f1N Qd1 f3 Qe1 a3 Nd2 f2 Qb1 f4 Qc2 f3 Bg2 Ne3 Ne2 f1N Rh2 f2 Re1 a1Q Qb2 h4 Rh1 a2 Rc1 h3 Nf3 d2 Nf4 d1Q Ne2 h2 Qd2 d3+ Ned4 Qc2 Rb1 Rh4 Qe2 d2 Ng5 d1Q Nf7 Nf6 g8B Nd2 g7 f1Q Bh3 Qg1 Bh7 Nbd7+ Ke6 Ned5 e5 Nf3 Nc6 Qde1 Qg2 Qg3 Bd3 Ra3 Na5 Rd4 Bdf5 Qc7 Nd8 Nh7 Kf7 Ndf8+ Kg8 Be6+ Kh8 Qe7 Rb2 Bg8 b4+ Kb6 c5+ Kb5 Bg6 Qe3 Bc8 Ne1 e6 Qac1 c6 a1Q c7 Qcd3 Rb3 Qab1 Bf5 Ra2 Rb2 Ka4 Bd7+ Ka3 c8Q Qa6 Qc5 Nc7 Nac6 Qbe4 Qb5 Qeg4 Bb1 Qg6 Qg5 Ka4 Be4 Qad3 Rg1 h1N Na5+ Ka3 Rf1 Nf2 Rh1 Ng4 Rh4 Ne5 b5 Na6 Rc2 Kb4 Rc8 Qda3 Rb8 Nc7
2n4r/3R3b/n3QPRQ/B2nP3/1rP1KN2/qrk2B2/1rNrq1qr/q7 w - - 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 e5 Nf3 gxh6 Ng1 h5 Rh2 h4 Rh3 Qg5 Rh1 Qd8 f4 exf4 g3 f3 Kd2 f2 Nf3 f5 Bg2 f4 Ng1 f3 Bh3 Bd6 Bf1 Bf4+ gxf4 Ra4 Ba3 Ra5 Bc1 Ra8 Kd3 Kf7 e4 Ke6 c4 b5 a4 d5 f5+ Ke5 f6 h5 a5 b3 a6 b4 a7 b2 Bh6 h3 Bc1 b3 Ra6 h4 Bg2 f1Q+ Ne2 f2 Rb6 h2 Nd2 b1R Ba3 b2 Be7 h3 Rb7 Qd6 Rb4 Bf5 Rb7 Bh7 Bf8 Ne7 Qb3 Nc8 Rg1 h1R Qc2 h2 Bh6 Qc1 Ng3 f1N Rb6 Ne3 Ndf1 Qa3+ Qb3 Na6 Rc6 Rb8 Ke2 d3+ Kf3 Kd4 a8Q d2 e5 d1Q+ Kf4 Qe2 Qb6+ Kd3 Nh5 d4 Bf8 Kc3 Rc7 d3 Qe6 d2 Rd7 d1R Qb7 Rd2 Bb4+ Kb3 Qbb6 Kc2 Bf3 Nd5+ Kg5 Qcd1 Ba5 Qc1 Qd4 Rb4 Qh4 Kc3 Ne3 Qcf1 Rg4 Qfg2 Qh3 Ra1 Nf4 b1R Nc2 Rb3 Qh6 Ra2 Ng6 Rab2 Kf5 Ra1 Rg5 h1Q Rg3 Qb1 Rg5 Qba2 Rg4 Rh1 Rg5 Ne3+ Ke4 Rh2 Rg3 Qa1 Rg5 Bg8 Nf4 Bh7+ Rg6 Nd5+
q2n1Q2/1n3Pn1/1Kb3rb/QR1Pp1Nn/r2P2k1/5r2/1B5n/1qR1b1NB w - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a5 Qc2 axb4 Qb3 Ra5 Qd1 Ra8 h4 g5 e4 gxh4 a3 bxa3 Rh2 fxe4 Rh3 Bg7 Rh1 Bf8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 e5+ Kb5 h5 d4+ e3 g4 c5 f3 c4 Qe2 h3 Bg2 c3 Qa2 h4 Bb2 h2 Bf1 c2 Nd2 c1N Ne2 h3 Bg2 Ra6 Rg1 h1N Qc4 h2 Qa4 a2 Qc2 Bd7+ Qc6 Nb3 Nf1 Ng3 Nd2 h1N Ba3 Ne7 Bb4 Nc5 Nc3 e2 Rac1 a1R Nd1 e1B Bc3 Nf2 Bh1 Rh3 Bb2 Bh6 Nc3 Nef5 Ne2 R1a4 f4+ Kh4 g5 Kg4 g6 Ng7 Rf1 N3h5 f5 Rf3 f6 b6 Ne4 Nb7 Ng5 Qg8 Ne6 Be8 Qd7 Nc6 Qd8 Bd7 Qc7 Qa8 f7 Be8 Ng1 Ncd8+ Qc6 Ne4 Rb1 Neg3 Ng5 Bd7 Rc1 Be8 Rf2 Nf1 Rfc2 Nh2 Rc5 Nf5 g7 Bd7 g8Q Nfg7 R5c4 Be8 Rb4 Bd7 Kc4 Be8 Qb5 Bd7 Bc3 Bc6 Qa5 b5+ Kb3 Rf5 Qf8 Rb6 Bb2 Rf2 Rbc4 b4 Rc5 Rf3+ Kc4 Ra6 Rb5 b3+ Qab4 Na5+ Kc5 Rb6 Ba1 b2 Qc3 b1Q Bb2 Bb7 Qa3 Rg6 Qa2 Bc6 Kb6 Nab7 Qaa3 Rc4 Qa5 Ra4
1b1KR3/nq1r4/1BPbBQ2/q1n2N2/2p1nRQ1/2N2P2/3rbbP1/3rk1q1 w - - 0 1 legal: proof: h4 c5 c4 d5 a4 f5 e4 fxe4 b4 g5 Qf3 gxh4 Qd3 b5 axb5 cxb4 c5 Qa5 Qb3 Qd8 Qc4 dxc4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 b6 e5+ Kh5 a5 b7 b3 d3 h3 Ra3 b2 Bd2 a4 Rh2 e3 Rh1 h2 Be1 e4 Rb3 e2 Ra3 e3 Rb3 a3 Rb5 a2 Nh3 a1N Ra5 Nf6+ Kg5 h5 Rb5 h4 Bd2 e1B Bb4 e2 Ng1 h3 Ba5 Bd6 Bb6 Ra2 Nc3 Nc6 b8Q Bg4 Qc8 b1Q Rb4 Bf3 Qg4+ Ne4+ Kf5 Ra7 Ke6 Rd7 Rb2 Na7 c6+ Bc5 Ra2 Nb3 Rb2 Bd2 Rc2 e1B Be2 Rh4 Bd1 Bf4 Re2 Qc7 Re3 Be2 f3 Ned2 Bc2 Bf2 Kf6 Qe1 Re8 Ne4+ Ke6 Ke3 d4 Kd2 d5 Rh8 d6 Qb7 Bb1 Rhh7 Bd3 Rd8 d7 Bb8 Bb1 Bcd6 Bc2 Rc8 d8Q Rd7 Qf6 Rcd8 Bd3 Qa1 Bc2 Qa5 Bb1 Bf1 Nge2 Ke1 Nd4 Nbc5+ Kd5 Kd2 Nf5 Be2 Re1 h1Q Rf8 Na4+ Ke6 h2 Bd3 Qg1 Re8 Ng3 Be4 h1R Bd5 Ne4 Rf8 Be7 Kf7 Nac5 Be6 Rd5 Re8 R8d7 Rf8 Bed6+ Ke8 Bd3 Re3 Be2 Rf7 Ke1 Rf8 Ng5 Re4 Rd2 Rf4 Rg7 Kd8 Nge4 Ne7 Rg5 Rh8 Rgd5 Nf5 Rh7 Rf8 Rd1 Rh8 R5d2 Re8 Rd7+
2b1nQ2/2qbN3/n1q2QKb/3R1pP1/1p2b1Bq/Pr1P2R1/2kN2r1/Bb6 w - - 0 1 legal: proof: b4 d5 b5 e5 b6 d4 Nf3 d3 cxd3 axb6 Ng1 b5 Qc2 b4 Qb3 Qe7 Qd1 Qd8 h4 c5 f4 exf4 h5 c4 h6 c3 Rh5 cxd2+ Kf2 gxh6 Rh4 h5 Rh1 h4 Kf3 Kd7 Kg4 Kc6+ Kh5 Kc5 e4 Kd4 g4 b5 a3 f5 e5 b3 g5 h3 e6 f3 e7 b2 e8Q h2 Ra2 f2 Qc2 d1B+ Be2 f1B Qf7 Bg2 Qg6 Nf6+ Kh4 h5 Ra1 Bh6 Bd2 Qc7 Bf4 Be4 Qe8 Na6 Qf8 Ne8 Bg4 Rb8 Nd2 b1B Qc6 Ba4 Nh3 Rh7 Qg6 Kc3 Qgf6+ Kc2 Rg1 h1Q Be5 Qh2 Bc3 Qc6 Bb2 Qhc7 Rg3 Rb6 Nf4 Rh8 Kh3 h4 Ng6 Rh7 Bd4 Re7 Bc3 Re5 Ne7 Rc5 Kh2 h3 Bb2 Rc3 Ra2 Rb3 Ba1+ Kc1 Rb2 Rb8 Kg1 h2+ Kf2 h1Q Ke3 Qh4 Kd4 Rc3 Rb4 Rc2 Rc4 Rb7 Rc5 Rb6 Rd5 Rb2 Nf1 Rg2 Nd2 Kc2 Qd6 b4 Ke5 Rb5 Qf6 Rc5 Qf8 Rc4 Qf6 Rc3 Qf8 Ng7 Kf6 Ne8+ Kg6 Rb3 Qff6 Qc3 Qf8 Bad7 Qdf6 Q3c6
5n1k/pQ2RP2/3r1qP1/1n1qb3/1pr3Q1/b4N2/RNqnKP1r/2B2nB1 w - - 0 1 illegal: No proof kernel
2b1rb2/1P1KB3/n2P2r1/rRp2n1B/P1RrQ1b1/r5N1/3Np1Q1/3qk1r1 w - - 0 1 illegal: No possible last move
rq1N4/1Qr2Rq1/P1nQ4/2r3qk/2bB3q/P4p2/pRq2P1N/2bKB1b1 w - - 0 1 illegal: No proof kernel
nKrN1bR1/3P3q/P3N1p1/1k2n1Qp/1Pq2nq1/1BQq4/5Rn1/b4bB1 w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 d5 g5 dxe4 g6 fxg6 h3 g5 Qf3 g4 Qe2 Ra3 Qd1 Ra8 c3 gxh3 Qe2 b5 Rh2 b3 Bg2 b2 Bf1 b4 Rh1 b3 Qg4 Ra4 Qd1 Rb4 cxb4 Qd4 Qe2 Qd6 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 h5 Ke5 e3 d4 h2 a4 e2 f4 e1N f5 Nf3+ Ke4 e5 a5 Ba6 f6 Ne7 f7 Nd7 Be3 Nd5 Bg2 Qg5 Bf2 N7b6 Qc2+ Kb5 Nd2 b1Q Nc4 c5 Ne2 b2 Rf1 h1Q Nf4 Na8 Bg1 Qg4 Rf2 Qhh4 Bf1 Qd1 Qc3 b1Q+ Bd3 g6 Bc2 Qa2 Bb3 Qe7 Ne3 c4 Nf5 Qb7 Ne7 Rg8 Nc6 Qdd2 Qb2 c3 Nd8 c2 Qc3 Qc7 Rd1 c1B Rdf1 Bb2 Rd1 Qh3 Nfe6 Nf4 d5 Ba1 d6 Qg4 Rc1 Qe7 d7 Qd1 Qd4 Qf1 Rc8 Qa3 Qc3 Qc4+ Ke3 e4 Rb8+ Bb7 a6 Ne5 Rc8 Bh6 f8Q Qh7 Qf7 Bf8 Qf5 Bd5 Qg5 Rh8 Kd2 e3+ Kc2 e2 Kd2 e1N Ke3 Qc7 Kd4 Bc4 Ke4 Bf1 Kd4 Nh3+ Kd5 Ng2 Rf3 Bh6 Rf2 Qcc4+ Kd6 Rf8 Nb7 Rh8 Rg8 Nhf4 Nbd8 Nb6 Nc6 Bf8+ Kc7 Na8+ Kb8 Bb2 Bd1 Ba1 Ncd8 Qab3 Bc2 Qb1 Bd1 Qbd3 Bb3 Ne3 Nb7 Be7 Rd8 Neg2 Re8 Rf8 Rc8 Rf7 Rg8 Rf8+ Ka7 Rb8 Nbd8 Rc8 Kb7 Bf8 Ka7 Rc6 Kb8 Rc8+
n2N2b1/2B1pq1r/P4B2/nbPb1Rpn/1k2P3/1N3R2/3p3Q/1bQr1rK1 w - - 0 1 legal: proof: g4 a5 d4 f5 b4 axb4 h4 c5 h5 cxd4 h6 fxg4 Bg2 g6 Bf1 Bg7 hxg7 Ra5 Nc3 Ra7 Nb1 Ra8 a4 b5 f4 d5 Kf2 Kd7 c4 Kd6 f5 Kc5 f6 h5 f7 b3 f8B b2 a5 g5 e3 h4 a6 g3+ Kg2 h3+ Kf3 h2 Kg2 b4 Qg4 b3 Qe4 d3 Nd2 b1N Qh4 d4 Ra5+ Kb4 c5 b2 Qh5 Nd7 Qg4 Qe8 Ra1 Nb6 Nh3 Rh7 Nf2 Be6 Ra5 Nf6 g8Q Qf7 Nfe4 Rd8 Qe2 Na8 Rg1 Na3 Nd6 b1B Qe1 Nc4 Nb3+ d2 Ra3 d3 Bg7 Na5 Nb7 Nh5 Qh8 Bc4 Bd4 Bb5 Bf6 Rd7 Nd8 h1B+ Kh3 g2 Kh2 Rd4 Bb2 Rd5 Qc1 d1B Bbe5 d2 Bc7 Re5 Be2 Bdc2 Rf1 g1R Rf5 Rd1 Bf1 Bd5 Kg1 Bcd3 Qc2 Re4 Qb2 B3c4 Qc1 Rh4 e4 Rh2 Na1 Re2 Raf3 Ree1 Nb3 Qf8 R3f4 Bg8 Rf3 Bcd5 Qg7 Qf7 Qh6 Ng3 Qh1 Nh5 Qh2 Rxf1+
1qr3r1/2R1PQ1n/6Pp/2R4n/1p1k2PQ/N3N3/1r1qbpK1/nq3nBB w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 g5 f5 a5 g3 axb4 Qd3 g4 Qc3 Bh6 Qf3 gxf3 f6 Bf4 g4 Bg3+ hxg3 exf6 Rh6 f5 Rh1 f4 Kf2 Ke7 e4 Ke6 c4 Ke5 a4 b5 a5 f5 a6 d5 c5 d3 g5 d4 g6 d2 c6 d1R g4 h6 c7 b3 a7 b2 Nh3 d3 Nd2 b1Q Nc4+ Kd4 e5 d2 e6 b4 e7 Nd7 Nd6 Ngf6 Nf7 Nf8 Ra5 Nh5 Kg1 f2+ Kg2 Nh7 Rc5 Ba6 c8Q Rg8 Nd6 Be2 Qe6 Rc8 a8Q Re1 Qf3 d1Q Nc4 Qd2 Qg3 Qe8 Qh4 f3+ Kh2 f4 Qf7 Rd1 Bg2 f1N+ Kg1 Re1 Na3 Ne3+ Kh2 Rf1 Nf2 Nc2 Nd1 f2 Ne3 f3 Rg1 Qb5 Bh1 Na1 Kh3 Qb8 Bb2+ Ke4 Bd4 Rd1 Re1 f1N Rc7 Rc1 Bb6 Rc2 Rc1 Kd3 Bd4 Rb2 R1c5 Ng7 Nec2 Ke4 Bg1 Nh5 Ne3 Kd3 Nec2 f2 Kg2 Ke4 Ne3 Kd4
r2bNbK1/1qpQP1q1/1r3ppr/2p3r1/1k1P1B1Q/1n4PN/2B2R2/3R3b w - - 0 1 illegal: No possible last move
4K2Q/p1P1qn2/2RRPq2/1bbp2p1/k5pp/1r1BN3/2Bn1P1Q/2b1q1N1 w - - 0 1 illegal: No possible last move
6k1/b3R3/Bn1p3r/b1b5/pp1N1bP1/Q1pKRbPQ/pP2r1Bq/1N6 w - - 0 1 illegal: No proof kernel
2R1BK2/4r1q1/N1Q3q1/Pq1bq1P1/3nnQrR/1k2n1q1/3BbPqb/5N1r w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Ke6 c4 b5 a4 h5 a5 d5 c5 d3+ Ke3 d2 Kd4 h3 c6 h4 Kc5 e3 c7 e2 Qb3 e1R Qb2 d1B Qa2 h2 Qa3 d4 Bd3 h3 Be3 b3 Ne2 b2 Qb4 Nf6 Bh6 Nc6 Be3 Qd6+ Kb6 Kd5 Ng1 e5 Bh6 e4 Ra4 e3 Nf3 e2 Bd2 Bb7 c8Q Qg3 Rg1 h1Q Bg6 h2 Rf1 d3 Bh5 Nd4 Ra2 Qhg2 Na3 b1Q Bf4 h1Q Kc7 d2 Kd8 Qg6 Be3 Ne4 Nb1 Bd6+ Kd7 Qhh3 Qb2 b4 Ra4 b3 Qbc3 b2 Na3 b1Q Q8c7 Rag8 Nc2 Qb6 Rc4 Qb5+ Rc6 Qhh2 Rh1 Qhh4 Rh3 Rh1 Bh6 e1Q Nh2 Be2 Nf1 d1N Bd2 Ne3 g5 Re8 Qb4 Rhf8 Qb6 Rf4 Qa4 Rg4 Nb4+ Ke5 Na6 Kd5 Qb4 Re7+ Kd8 Bf4 Rc8 Bc6 Qd6+ Kc4 Qf6 Be5 Qf4 Kb3 Qc5 Bd5 Qc6 Qf5 Bf7 Qhh7 Rh4 Qfg6 Be8 Q3h3 Qff6 Bh2 Qf4 Qhg3 Bd7 Rf7 Ke8 Re7+ Kf8 Qa1 Be8 Qc3 Qb7 Qc7 Qa8 Qe5 Qc6 Qhg7#
bN3bBQ/2qr1bqP/b2qR3/3nb1k1/n3P3/2r2bBP/2r1RN2/3nQ2K w - - 0 1 illegal: Other
B1b3n1/3R4/k3q2R/q2bb1nP/1r2Q1PQ/2nn2r1/1BN1P2K/1rqNqq2 w - - 0 1 illegal: No proof kernel
n3Bq1N/r1n2Pr1/P1Q2n1q/1r2kqbP/r1R1b3/2Kq3q/R1Q3Nb/6B1 w - - 0 1 illegal: No possible last move, all moves rejected
2b1NnQB/2b3bB/2q2r2/2k3r1/b2b1P2/bP1rnP1q/3NRR2/qr3Q1K w - - 0 1 illegal: Other
q1QRR2q/r1b4P/4qb2/3bnP1N/1N1r1rr1/2r2BnQ/KB1k1rPq/8 w - - 0 1 illegal: No possible last move
r1n1BBq1/5P1b/2b5/Pq1kq1N1/bR2r3/NPQ1K1b1/nQq3bR/b1n5 w - - 0 1 illegal: No possible last move, all moves rejected
2Brn1nn/K4bqP/4Nbq1/1r1bb1QN/1P1P3R/2Bkn1Q1/2R2r2/1r2q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 e4 Ke6 b4 Ke5 h4 Kd4 h5 a5 d3 c5 e5 g5 e6 f5 h6 f3 e7 c3 e8Q g3+ Ke1 c2 Kd2 g4 h7 g2 Qd7+ Bd6 Rh2 f4 Qf7 f2 Qe8 a3 Qd7 a4 Ke2 f3+ Kd2 g3 Qe7 a2 Qg5 c4 Rh5 a3 Qg7+ Qf6 Qe2 Be6 Qd7 Ra5 Qd8 Rb5 Rh3 Nd7 Qe8 Be5 Qh5 Qg7 Qg6 Bf7 Rh5 Ndf6 Rh3 Ne8 Nc3 Bf6 Bb2 c1N Qd1 Ne2 Rc1 a1Q Nb1+ c3+ Kc2 a2 Qg5 Nf4 Qd2 Ng6 Be2 f1N Qe1 f2 Bg4 Be5 Be6 Ne3+ Kb3 f1B Ka4 Be2 Nd2 Bf3 Qf2 Bd5 Rc2 Qe1 Ne4 a1B Rh4 Bf6 Nh3 g1Q Bc8 g2 Qfg3 Be5 Rc1 Bf6 Nf4 Be5 Ba3 c2 Nf6 Kc3 Ne6 Bb2 Rb1 c1R Nh5 Rc2 Rc1 Ba1 Bb2+ Kd2 Bd4 Bf6 Bc5 Bae5 Bd4 Ke2 Bc3 Rd2 d4 Kd3 Rg4 Rf2 Re4 Qh1 Rf4 g1R Rh4 Qg2 Rc2 Qd2 Ba6 Nd6 Qh2 Nh6 Bc8 Rb1 Qgf4 Qe1 Qh3 Qe4 Qhg3 Rd8 Qgg5 Ng8 Qfg3 Rb6 Ka5 Rb5+ Ka6 Ne8 Ka7 Nh8 Ka6 Qf5 Ka7 Qfg6
1QNK1b1b/1R3rRB/r6N/1Pqb1n2/1q2b2B/3q1Pn1/pk1P4/r2nb1Q1 w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Kg5 Kb4 g4 h5 b3 e5+ Kg6 a5 Kf7 c5 g5 e3 g6 h3 g7 c3 Bb2 c2 Be2 c1Q Bb5 c4 Bd7 e4 Bg4 e2 Be5 e1B Qf3 a3 Bg3 a2 Rh2 a4 Be5 h4 Qd1 c3 Bf4 a3 Bh6 e3 Rg2 c2 Bd7 h2 Nf3 h1N Bf5 h3 Nh2 e2 Nf1 h2 Bd7 Qb2 Ne3 c1Q Bf5 Ra6 Be4 Qd3 Ke8 Ng3 Ba8 h1B Nf5 Qc5 Bg5 Bb7 Bd8 Bd5 Nc3 Nd7 Nb5 Rh7 Bh4 Nb6 Rb1 a1B Nbd6 a2 Kd8 Ka3 b4 Ne7 g8Q Na4 Nc8 Nc3 Nh6 Rf7 Rg1 Bhe4 f3 Nef5 Bc6 Nf1 Rg7 N1g3 Qc1 Nd1 Be8 Rff6 Bg6 Rf7 Bh7 Kb3 Qc4+ Ka3 Qb5 Qbb3 Qb8 Bb2 b5 Qbb4 Rc1 Be5 Rc3+ Kb2 Ra3 Rff6 Rb7 Rf7 Qg5 Bh8 Ra4 Rg6 Raa7 Ra6 Qg6 Bf2 Qg8 e1R Qg5 Rh1 Qe3 Be1 Qg1 Rff6 Rg7 Rf7 Rb7 Nde3 Qg2 Bf2 Bg5 Ra1 Qg1 Nd1 Bh4 Be1
RN4Kr/1q2b2p/nq2PBPN/1bb1r1b1/2Q3P1/8/1Rqr3k/nBbn1Q2 w - - 0 1 illegal: Other
2B1kqnN/Q1QnN1P1/3R2K1/b3b3/4p1rP/b1Pq1rRr/3Bb1n1/q4b2 w - - 0 1 illegal: No proof kernel
1N5R/2bnPP1K/1q1PR3/Nqrrp3/4kb2/qrQb4/Q1n1n3/q1B2Bq1 w - - 0 1 illegal: No proof kernel
B2nQ3/1N1Nn3/Rb1bR3/2bpQ3/3P1Pbn/r1r1P2B/1K1q1kb1/3b2qb w - - 0 1 illegal: No proof kernel
1r2BrN1/1bBQ2Q1/2nr2R1/2qnP3/P1pkbR2/2b4b/1N3KP1/1bn2n1n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Ke7 e4 Kd6 a4 c5 d5 Ke5 d6 b5 d7 h5 Ba3 f5 Qe2 h3 Qb2+ c3 Qc2 b3 Ke2 b2 Qc1 b4 Qc2 f3+ Ke1 f2+ Ke2 h4 Kf3 f4 Qb3 c2 Nc3 b1B Qa2 c1N Ba6 f1B Qd2 h2 Qb2 b3 Qf2 b2 Na2 h3 Qe1 Qe7 d8Q Nc6 Qc7+ Kd4 e5 Nf6 Bb5 Be4+ Kf2 b1B Qd7+ Nd5 Nc3 f3 Nd1 Rb8 Nb2 c4 Qd1+ Bfd3 Bd6 Bb7 Bc7 Qc5 Qg7 Be7 Ra3 Rhf8 Rc3 Bg5 Rb3 Bd2 Ra3 Na5 Be8 Bc3 Rb3 Nc6 Rb6 Na7 Rg6 Nc6 Kg3 f2 Nf3+ Ke3 Rf1 h1R Nh4 h2 Qg4 Kd4 Qc8 Bf5 Qcd7 Bh3 Nf5+ Ke4 Ne7 Kd4 Ng8 Be4 Re1 Rf1 Re3 Rd1 Rf3 f1N+ Kf2 h1N+ Kg1 Rd2 Rf4 Rf2 Rh4 R2f6 Rf4 Nhg3 Kf2 Re6 Qh8 Rd6 Qhg7 Nh1+
1q2n3/Bnr1bb2/nQ1r1k1n/N3p2B/1QRRP2q/3r2P1/1Pq5/nN1q1K2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 f5 b5 g3 bxa4 f6 h4 Nd2 h3 Nb1 gxf6 Qd3 f5 Qe4 f4 Qg2 hxg2 h4 f5 e4 Kf7 c4 d5 h5 e5 h6 a5 h7 d3 c5 f3 c6 a3 c7 f2+ Kd1 f4 Ra2 f3 Rh4 d4 Ra1 a4 Rf4+ Nf6 Ne2 g1Q Nec3 a2 Bd2 a3 Nb5 Be6 c8Q Ra6 Rg4 Qh1 Be1 d2 Qc6 Qh4 Rg5 Ne8 Rg8 Be7 Na7 Kf6 Qc1 Rd6 Bh3 f1Q Nc8 f2 Qc2 Bf7 Na7 Qd3 Rg7 f1N Bf2 Nh2 Nc3 Na6 Qb3 Ng4 Qb4 Qb8 Rc1 a1N Nc6 a2 Na5 Qc2+ Ke2 d3+ Kf1 Nb3 Nb1 a1N Ba7 Nh6 Bg4 Nbc5 Bh5 Nb7 Rd1 Rf8 h8Q Rg8 Rh7+ Rg7 Qf8 Qbc8 Qb6 Qb8 Re1 d1Q Rh8 Qdg4 Rc1 d2 Rh7 Qcc8 Rc4 d1R+ Kg2 Rd3 Kf1 Qa8 Rd4 Qc2 Rh8 Nec7 Qb8 Ne8 Qb4 Qd7 Qc7 Qb8 Qcb6 Nec7 Rc8 Ne8 Rc6 Qdg4 Rc5 Qgd1+ Qe1 Bd5 Na3 Bf8 Nb1 Rc7 Rc6 Be7 Rcc4 Qdg4 Qd2 Bf7 Qdb4 Qgd1+
1Qr1q1RB/Q3q2P/3PbN1r/b3qR1n/1q2brB1/4Kq1P/n1k1b1Np/8 w - - 0 1 illegal: Other
3BN3/1PQKQ1RP/N5B1/qn2P3/7q/q1nrb1qb/p2q3b/k2rnn1R w - - 0 1 illegal: No possible last move
1qq3NB/P4b2/Bkn1bb2/4Qrnr/3p3R/Rn1n1n2/rPQP1K2/N2r4 w - - 0 1 illegal: No proof kernel forced: bxDB
1r2b1nQ/1PB3r1/r1bN1RK1/r1P1bp1r/5Qb1/k2qR1N1/2nr1P2/r6B w - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 b5 d4 bxa4 d5 c6 Kd2 cxd5 Ke2 dxe4 Ke1 e3 Ke2 h5 Kd3 a5 Ke4 d5+ Ke5 Kd7 Kf5 Kc6+ Kg5 Kc5 g4 Kb4 c4 f5 b3 e5+ Kg6 e2 g5 e1R c5 h3 Qf3 d4 Qe2 h2 Qe3 h4 Nc3 d3 Bh3 e4 Nb5 d2 Qf4 d1B Na3 Qd3 Bg4 h3 Ne2 Bg7 Rf1 h1R Qd6 h2 Bh3 e3 Qd5 Nc6 Ra2 Be5 Nb5 a3 Nd6 a4 Bg2 Ra5 Ra1 a2 Nf4 e2 Qe4+ Nd4 Qf3 a3 Bb2 Nc2 Nh5 Bd7 Ng3 Bb5 Rb1 a1R Bd4 a2 Qf4 Ka3 b4 Bc6 b5 Rh7 b6 Rf7 b7 Be8 Rg1 Rf1 Bf3 e1R Rb6 Re3 Bg2 Bg4 Bc3 Rfc1 Re1 Rd1 Rc6 Re4 Re3 Rd2 Rb6 Ra6 Ba5 Ra4 Rc6 Ra8 Bc7 R4a5 Be4 Rb8 Bg2 Rhb1 Bd5 Rb6 Bh1 Rba6 Nc8 Rb1 Rf6 a1R Nd6 Rbb6 Be4 h1B Bd5 Bg2 Bc6 Bf1 Bh1 Bg2 Nde4 Rb4 Nd6 B4h3 Qc4 Be4 Kh5 Nh6 g6 B4c6 g7 Rba4 g8Q Rb4 Qg6 Ng8 Qh6 Rba4 Qe4 Rd4 Qf3 Rh4+ Kg6 Bg4 Qff4 Rh5 Qh8 Rg7+
Kn1rb1b1/PB3b2/1p3RNR/Pb1rb1QP/k7/1NBrr1q1/b3nb2/4Q3 w - - 0 1 illegal: Other
r3K2B/7n/P2qb1pb/kNb3nP/Bq2Q3/r2rn1N1/2P2q1R/QR3q1b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 a4 Kc7 h4 Kb6 e5 f5 h5 b3 e6 d3 e7 b2 e8Q g3+ Kf3 g2 Qee2 g6 Rh2 d2 Qe5 d4 Qe4 d3 Qe5 Nf6 Qde2 d1R Qe1 d2 Bd3 Na6 Ra2 Nc5 Ne2 g1B Qe6+ Ka5 Bb5 Qd6 Bd7 b5 Rh1 b4 Qf1 b3 Qe3 Bb7+ Bc6 Nh7 Qe7 Bh6 Bd5 Ne6 Rh3 Neg5+ Kg2 Bc5 Na3 b1Q Qe4 b2 Ng3 f3+ Kh2 f4 Ra1 f2 Bc6 f3 Nb5 Rhb8 Qg1 f1B Qh1 Qa2 Rb1 f2 Qg1 Bc4 Kg2 f1N Rh2 Be6 Be8 Ka6 a5 Ne3+ Kf2 Bbd5 Ke2 Qa4 Kd3 Qb4 Bd7 Qf8 Be8 Qf2 Qe1 Kb7 a6+ Kb6 Bd7 Ka5 Qg1 Bcf8 Be8 Qd6 Kd4 Rc8 Qf1 Rc3 Qfh1 Qb4+ Ke5 Bc5 Bd7 Rd3 Bc6 Re1 Be8 d1Q Bd2 Nf5 Bc3 Ree3 Bd4 Ra3 Bc3 Rd3 Bc6 Nf8 Kf6 Ne3+ Qef3 Qde2 Rc1 b1Q Nc7 Nh3 Ba4 Qb2 Nb5 Qee1 Qf5 Bf3 Qe4 Ng5 Bd4 Qee2 Qe1 Qa2 Qc3 Qef1 Qa1 Qd5 Rb1 Qc6 Be5 Rd6 Ke7 Nfh7 Bc3 Bh1 Bh8 Rdd3+ Nd6 Bc8 Kd8 Qcb6+ Ke8 Qc7 Nb5 Qcf4 Qed4 Qd6 Qe4 Be6+
1N2QQ1K/2n1q1b1/PpRP1nr1/r4qBr/k1nN1q2/q1R2B2/P6b/1b3n2 w - - 0 1 illegal: Other
3Q2Kq/1PP1b3/nQ1R4/P4bbb/k1B1bp1R/nbBN1r2/1r2N3/3rr1n1 w - - 0 1 illegal: No proof kernel
2NK4/1r2r1n1/pB2k2P/4N3/1P1B1Qn1/P4R1q/1r1bRr2/qnrrQn1b w - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 h5 Nc3 h4 Be2 h3 Bf1 fxg6 Bg2 hxg2 Nb1 g5 Qf3 g4 Qe2 Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 e5 d4 g5 h4 c5 f4 a6 b4 g3 f5 c3 d5 c2 h5 g4 a3 c4 f6 c3 d6 Bb7 f7 Nc6 Bd2 c1R Nf3 g1N Qe1 g2 Qh4 g3 Rh2 c2 Ra2 Rh7 Nd4 Ne2 Qf4 g1N Qf6 g2 Qh4 Nc3 Qg3 Qc8 Qg5 Nce7 Rh3 Nge2 Rh4 g1R Nc6 Rg2 Qg7 Ng3 Rb2 Nh6 Ra2 Ke6 d7 Rd1 d8B c1R Be1 Rb2 Nd2 Nb1 Na7 Bd5 Bb6 Nf1+ Ke2 e3 Kd3 e4+ Kd4 e2 Rf4 e3 Bf2 e1Q Qg3 e2 Rf3 Qd7 Nc8 Ng4 Qg1 Bh6 f8Q Ra7 Qf4 Rb7 Be3 Bg5 h6 Rf7 Qh1 Rb3 Rc2 Rb2 Kc5 Nf5 Nc4 Ng7 Bd4 Qc3 Qg1 e1R Qgg3 Re2 Qe1 Be4 Rd2 Rf2 Re2 Re7 Bf6 Kf7 Bd4+ Qf5+ Kd6 Bd5 Qh2 Bd2 Ne5+ Kf6 Qf4 Be4 Rfe3 Bh1 Rg3 Qb3 Rh3 Qa2 Rf3 Qa1 Bc7 Re6+ Kd7 Re7+ Kd8 Ke6 Ba5 Qh5 Bab6 Qh3
n1b1KN1R/2b2p2/2Q5/B4k2/1P3nrB/1n1rq2q/P2NRP2/rnrqQ2q w - - 0 1 legal: proof: e4 a5 c4 d5 h4 dxe4 b4 g5 c5 gxh4 c6 a4 Ba6 bxc6 Bd3 c5 Bc2 c4 Bb3 axb3 Ke2 Kd7 Ke3 Ke6 Kf4 c5 Kg5 h5 g4 e3 d4 c3 Na3 h3 Qd2 h2 Qd1 b2 Ne2 b1N Nc2 c4 Rg1 h1Q Ng3 h4 Qe1 h3 Rf1 e2 Nh5 h2 Ne3 c2 Nd5 c3 Ng3 Nd7 Ne4 Rh3 Nef6 Nb6 Ne4 Nf6 Nd2 Nh5 Nf6 Nf4 Nh7 Rd3 d5+ Ke5 Bb2 c1N d6 Nb3 d7 Ke6 Rg1 c2 Bf6 c1R Rg3 Qf1 Rh3 h1Q Rh2 Qe8 d8B Qh3 Bc7 Rb8 Bd8 Na8 Ba5 Kd7 Kf5 e5 Bh4 e4 Kf6 e3 g5 Bd6 g6 Bc7 g7 Rb5 g8Q Rg5 Qf8 Rg4 Qh6 Kd6 Nf8 Qa4 Qf1 e1Q Qg1 Kd5 Ke7 Ke5 Qc6 e2 Ke8 Kf5 Qf1 Qd1 Qe1 Qb5 Nc4 Qb6 Nd2 Na3 Rb1 Qc5 Rb2 Nb1 Rc2 Qc3 Be7 Qe3 Rh8 Qeh3 Bh4 Qc5 Qf1 e1R+ Qe2 Reg1 Qe1 Qce3+ Ne4 N1d2 Rh7 Qde2 Qd1 Ra1 Rh8 Qef1 Rb2 Nb1 Re2 Qe1 Qdc1 Q1d2 Q1c3 Qc2 Qd2 Rc1 Qe1 Be5 Nd2 Qd1 Bf6 Bb8+ Be7 Be5 Bh4 Bc7+
2q1b3/P1nP1Qbr/q2p1RKQ/r2q2r1/bRB1n3/P3b2N/N1k5/r2q2B1 w - - 0 1 illegal: Other
1nQ3B1/K2bN3/n7/bq1r3b/nPp1q1k1/1QP3n1/2pPr1N1/nR1rB2R w - - 0 1 legal: proof: h4 d5 f4 b5 a4 bxa4 h5 e5 c3 exf4 h6 d4 Ra3 d3 Qc2 dxc2 Ra1 gxh6 Ra3 h5 Ra1 h4 Kf2 Ke7 e4 Ke6 g4 h5 g5 a5 b3 c5 e5 Kf5 e6 f3 Ke3 a3 g6 a2 e7 c4 e8Q h3 g7 h2 Qb5+ Kg4 Qb4 f5 Qb7 a4 Qb5 f2 Qa5 f4+ Ke4 f3 Qa6 h4 Na3 h3 Bd3 f1R Ne2 f2 Qa5 Qd7 Rb1 a1N Qd5 Rd1 Kd4 f1B Ng3 Qb5 Qg2 Ne7 Be4 Be2 Qf1 Na6 Nh5 Bd7 Nf4 Rh5 Bh7 Re8 Bg8 Bf3 Ng2 Rd5+ Ke3 Be2 Qf7 Nc6+ Qe7 Qb4 Nb5 a3 Nd4 a2 Nf5 Ncb8 Ba3 Qb5 Bd6 Bf3 Qe6 Be7 b4 Nb3 Bg3 a1N Be1 Nbc5 Qc6 Bd8+ Ne7 Na4 Qa8 Ba5 Qa7 Re5+ Kd4 Rd8 Bh7 Re2 g8Q+ Qg5 Qe8 Qh5 Bg8 Qb5 Rf1 h1N Rg1 Ng3 Rh1 Be4 Qc7 Bg6 Qc8 N6c5 Kd5 Bf7+ Kd6 Bh5 Kd5 h2 Kd6 Nb6 Kc7 Nca6+ Kb7 Na4+ Ka8 Bf5 Ka7 Rd5 Rg1 h1Q Rf1 Qh4 Rh1 Qf6 Qec6 Bd7 Qa8 Qf3 Qac6 Nb6 Qa8 Qe4 Qac6 Qc5 Qa4 Qb5 Qb3 Na4
1r5k/1rr3R1/bb1nKP2/2b2n2/BrRPpQq1/1BN3N1/2p1Pq1r/3Q3q w - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Ba3 h4 Bb2 dxc6 Bf6 c5 Be5 c4 Bg3 hxg3 a4 Kf7 f4 g5 h4 Kg7 d3 b5 Kd2 c5 Ke3 e5 Ke4 g2 h5 c3 a5 b3 a6 g3 a7 b4 f5 b2 Rh3 b3 Ra2 c4 Rh1 c2 Nf3 g1Q Bg2 c1R Rh2 c3 Ra3 g4 Ra2 Nh6 Qc2 Qf6 Kd5 e4 Rh3 Nf7 Nh2 Qh1 Rh4 Nc6 Rh3 Nd6 Ra4 Nd4 Nf1 Rb8 a8B Ba6 h6+ Kh7 Bf3 g2 Qd1 g1B Bc6 g3 Bg4 g2 Rc4 Qg6 f6 N4f5 Ng3 Bb6 d4 g1Q Bd7 Qf2 Ke6 Be7 Bh5 Qg4 Bf7 Rb7 Rh4 Rhb8 Bde8 Kh8 Ba4 c2 Rh3 Rc7 Nc3 b1R Rh5 b2 Rg5 Rbb7 Rg7 Rb8 Bb3 Bf8 Be8 Be7 Bea4 Bf8 Qd2 Rg1 Qd3 Rg2 Qd1 Rh2 Rb4 Nc4 Ba2 Ba7 Bd7 Bfc5 Ba4 Ncd6 Bd5 Ra1 Ba2 b1R Rc4 R1b7 Ke5 Rab1 Ke6 R1b6 B2b3 Qg6 Re7 Kg8 h7+ Kf8 Rd7 Rb4 h8Q+ Qg8+ Ke5 Bab6 Qh6+ Qg7 Ke6 Kg8 Qf4 Qg4 Rg7+ Kh8
B1RK1qr1/2n1n2P/bb4P1/kp6/1R1pnPr1/B1Q1bqN1/Q1n5/r1n4N w - - 0 1 illegal: No possible last move, all moves rejected
4q3/Bq2P2B/3Qrpn1/P1RRP2Q/1n3r2/N4p2/k1bKqb1b/Nb1b3r w - - 0 1 illegal: Other
4N3/Br1k4/B6N/1RQqn2p/nr1b1Ppb/2PrQ1bP/b3KR1b/1b5b w - - 0 1 legal: proof: e4 f5 g4 fxg4 d4 a5 b4 axb4 d5 c6 Qf3 cxd5 Qd3 dxe4 Qd1 e3 a4 g5 f4 d5 h3 e5 a5 b5 c3 h5 a6 b3 a7 e2 Qd2 b2 Qd1 d4 Qd2 g3 Qd1 g4 Rh2 g2 Kd2 e1B+ Kd3 e4+ Ke2 e3 Qd3 b4 Qc2 d3+ Kd1 b3 Qd2 Rh7 Ra4 Nf6 Rh1 Nc6 Ra5 Ne5 Ra2 Nd5 Ra4 Rb8 a8Q Rb4 Ra1 Bg7 Qa5 Nb6 Ra2 Bh4 Nf3 g1B Ne1 Bb7 Ng2 Bh2 Na3 b1B Nb5 b2 Nc7+ Kd7 Qc5 Na4 Ne8 Bd5 Qe1 d2 Ke2 d1R Qf2 B4g3 Nh4 Rd3 Nf5 Bf6 Rg1 Bh1 Nh6 Qa8 Rg2 Qd5 Qf3 Rf7 Rf2 Bfh4 Ra3 Ba2 Rb3 b1B Ba3 Re4 Rb5 Rb4 Ke1 e2 Qfe3 Kd8 Bc1 Rb7 Ba3 Rb2 Bb4 Kd7 Ba5 Rb4 Bb6 Bd8 Ba7 Bb6 Qc4 Bd4 Qc5 Bh4 Qg3 Rf3 Kd2 e1B+ Ke2 Rd3 Qe3 Rb6 Rf3 Beg3 Rf2 Qe6 Bg2 Qf7 Bb7 Qd5 Ba6 Rb7
Qr3q2/nr3r1n/Nr1rKpPP/2b2pBR/3kbRP1/r4B2/Q5r1/2N4n w - - 0 1 illegal: Other
1R2BN1q/P1rp4/Q1Qq3R/nn1P1r2/1k2BP2/2nb2p1/b1bK3N/2b2qr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 e5 hxg4 e6 c5 Ke2 b3 Ba3 b2 Bb4 cxb4 Ke1 fxe6 Bg2 e5 Bf1 e4 c4 b5 a4 e5 d4 Ke7 f4 Kd6 h4 g5 a5 e3 a6 g3 d5 Kc5 a7 e4 h5 e2 h6 g2 h7 g4 Ra2 b3 Rh3 g3 Qc1 b4 Nd2 b1B Ngf3 g1R Qc2 b2 Nh2 b3 Qc3 Nh6 Qf6 Nf7 Qe5 Nd6 Ra3 Nb5 Rh5 Kb4 c5 Bc2 c6 b1B c7 b2 Re3 Ba6 c8B Ba2 Qc7 b1N Rh6 N1c3 Nc4 Nc6 Ne5 Na5 Ng6 Rg8 Bb7 Rc8 Qc6 Rc7 h8Q Bg7 Rd3 Rf8 Kd2 Rf5 Bg2 Qc8 Qh7 Qh8 Nf8 Bf6 Rf3 Bd4 Qhg6 Bg7 Rf1 e3+ Kc1 Bd4 Be4 Bb6 Rd1 e1Q Bc8 e2 Qgf6 Qf2 Kd2 Qc5 Rb1+ Ka4 Qg6 Qd6 Bb7 Bc5 Rb2 Ba3 Qf6 Re5 Bg6 Rh5 Be8 Rf5 Rb1 Bb2 Qe6 Kb4 Qg6 Na3 Qf6 Bb5 Ba6 Bbd3 Bc4 Nab5 Qa6 Qe7 Qfc6 Qd6 Rh4 Na3 Rd1 Be4 Bd3 Kb3 Qa8 Ka4 Rh6 Kb3 Rb1 Ka4 Ke3 e1Q+ Be2 Qd1 Bf3 Qf1 Kd2 Bed3 Q8b7 Ba1 Rb6 Nab5 Be4 Bb2 Qc6 Kb4 Rb8 Bc1#
r2B2Nb/1Rn2R2/1b1q1rBp/1p6/1n3PK1/Qb2b3/PPQrbqN1/4b1k1 w - - 0 1 illegal: No proof kernel
2r2qk1/q1N3n1/nq3QpP/2b4q/B2QP1b1/2qqR2N/bBp3KP/R6r w - - 0 1 illegal: Other
4b1K1/1bn1k1nB/2qp1r1P/3P2n1/1N2bb2/P1r2r2/B2RQNbp/5QRr w - - 0 1 illegal: No proof kernel
2n1rr2/q1rPkB2/1P1R2r1/3b2K1/1Bp1pPQQ/4N1b1/5nq1/r3RqNr w - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 h5 Ke3 a5 Kf4 c5 g4 e5+ Ke3 a3 b4 a2 d4 c3 g5 a4 b5 a3 d5 c2 b6 h3 g6 h4 f3 h2 d6 h3 g7 Nh6 g8Q Qg5+ Kf2 e3+ Ke2 e4 d7+ Ke7 Qdd5 Qg2+ Ke1 e2 Kd2 e1R+ Be2 Bb7 Ke3 Nc6 Kf4 Ng4 Nd2 Na7 Bb2 c1R Qc6 Re8 Qc7 Bd5 Bb5 Nc8 Qa7 Nf2 Nc4 Rf1 Kf5 Rh6 Qg4 Rg6 Qa8 Bg7 Ne3 Be5 Qb8 Bg3 Bc3 Rc2 Rd1 a1Q Bc4 a2 Bb4 Rc1 Ne2 Rc2 Rg1 h1R Qbf4 h2 Bb3 Qb1 Qh6 a1Q f4 Qa7 Rd2 Rfc1 Re1 Ra2 Bc2 Ra1 Bb3 Rg1 Rdd1 h1R Qhh4+ Rf6+ Kg5 Rff8 Nd4 Qd3 Nf3 Qdf1 Rd2 Rh3 Ba2 Rgh1 Ng1 Rc2 Qh8 Rh6 Bb3 Re6 Qhh4 Rg6+ Kh5+ Rff6 Rde2 Ba8 Rd2 Rcc1 Be6 Rc3 Rd6 Bd5 Qh2 Rff8 Bf7 Rca3 Qhh3 Ra5 Qh2 c4 Qhh3 Rc5 Qhh4+ Rf6 Kg5 Rc7 Ne2 Rh6 Ng1 Rg6+
3nQRb1/1BP1r2K/1b1rn1R1/kqp2b2/1NB3qp/2PN4/1b4P1/bb1Q1q2 w - - 0 1 illegal: Other
1NQ1b3/PR1Nr1pB/1rr1b3/bpP3Qq/1k2nB2/2nnr3/P3Rb2/K4r2 w - - 0 1 illegal: Other
q1n1B3/p1n1R1b1/1r1N2b1/1RNn3Q/P1bP3K/kr1P1p2/bbrB4/2Q3r1 w - - 0 1 illegal: Other
Q3R1q1/Kq2B1N1/P2p1n2/2r1n1kn/2bn1pP1/2P1Q1b1/6NR/rB1r1nr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 a4 Kf6 g4 b5 e4 h5 e5+ Kg5 e6 f5 c3 h3 a5 d3 e7 h4 e8Q h2 Ra4 h3 Ra1 d2 Qe7+ Nf6 Qe4 f3 Ke3 b3 Kd4 f2 Bg2 f1N Qd5 b2 Bf3 b4 Qf7 b3 Be2 Rh5 Kc4 Nc6 Kb5 Ne5 Na3 b1R Nc4 b2 Qe8 Bd6 Qh8 Qg8 Kb6 Ba6 Ne3 Bc4 Qe1 d1R Bd3 Ra7 Ra3 Ra1 Ra2 b1N Ne2 Nbd2 Nf4 Nb3 Re2 Nd4 Neg2 Rc7 a6 Rc5 Bb1 Rh6 Rg1 h1Q Ba3 h2 Ka7 Rh3 Nh5 Rg3 Ng7 Bc7 Nh4 Qe4 Re3 h1N Rg2 Bd6 Rf2 Rg1 Rh2 Nhg3 Ng2 Ngh5 Bb4 Nef3 Qf2 Bg3 Ba3 Qed5 Re8 f4 Qe3 Ne5 Bb4 Rc6 Be7 d6 Qe1 Rc5 Qe3 Qf8 Qg8 Qc6 Qd5 Qg8 Qdf3 Qb5 Qa8 Qb7+
1B4Q1/nr1K1p2/1bp1r2b/bR3R1q/1PPPb3/k1bN2Bn/2Qr2r1/5qN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 Kf2 Kd7 c4 Kd6 h4 Kc5 h5 Kb4 b3 a5 d3 e5 g6 f3 Ke3 a3 h6 g3 g7 g2 h7 a4 Ra2 f2 Rh5 f1Q Bb2 Nf6 g8Q Bh6+ Rg5 Bf5 Qg6 Nc6 Nc3 Ra7 Ba1 Rg8 h8B Nd5+ Kd2 e3+ Kc2 e2 Nb1 e1R Rg4 e4 Ne2 g1B Nd2 e3 Qe6 Be4 Qe8 Rb7 Bhe5 Na7 Rf4 c6 Rf5 Qg5 Nf3 Qh5 Bg3 Nf4 Nc1 e2 Rb2 Bb6 Ng1 a2 Qa8 Rg6 Qg8 Ka3 Kc3 Nh3 Qc2 Re6 Rb1 Rd1 Bb8 e1R Rb2 Ba5+ Kd4 Rd2 Kc5 Ree2 d4 Rg2 Nd3 Bc7 Rb1 Ba5 Bc3 a1B Rb2 Bd8 Ba5 Bc7 Rb1 Bc3 Rb2 Bd8 Bac7 Ba5 Bh2 Re5+ Kd6 Bdb6 Bg3 Re8 Bc7 Re5 Kd7 Re6 Nc5 Kb4 Rb1 a3 Rb2 a2 Nd3+ Ka3 Rb1 a1B Rb2 Bc5 Rb1 Rb5 Bb8 Bcb6 b4 Rgf2 Re1 Rg2 Re3 Bc3 Re1 Bf3 Ree5 Be4 Rd5 Bc7 Rc5 Rb7 Rb5 Bcb6+
1Rb1b2n/nPrrp2B/2nPq2b/3N4/3Q2nK/1b5Q/Nn1pP1q1/2RB1k2 w - - 0 1 illegal: No proof kernel
2Bn4/1N3k2/8/1P1nB1rb/pNPbrqRq/Qr2b2p/qRPb3K/1Qq5 w - - 0 1 illegal: Other
2B3q1/1b5R/1Q2np1q/pNrP1P1q/2kB4/rN4Q1/1Krr3P/nRbb1q2 w - - 0 1 illegal: No possible last move
8/kN1nr3/1qRpbP1r/2QPr3/4R3/KBP1Np2/bbr2q2/1q2qnBQ w - - 0 1 illegal: No proof kernel
qq2nb2/RQ1B1rQ1/1qPnp1P1/4RN2/bK6/1p2Prr1/qkr1n1N1/4B3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 Qd3 cxd4 Qe4 g5 Qf5 gxf4 g5 Nf6 Qe6 Ng8 Qg4 hxg4 Kd2 b5 a4 d5 c4 Kd7 h4 Kc6 c5 f5 a5 g3 e3 d3 g6 d4 a6 Kd5 h5 Kc4 h6 Kb3 a7 g2 h7 e6 Nf3 g1N Ng5 f3 Ne4 f4 Ra5 f2 Na3 f3 Nb1 Nh6 Rh2 Qb6 Bb2 Ne2 Nd6 Nd7 Ne8 Nf5 Na3 Nf6 Rh3 Bd7 Nc2 Nd6 Ne1 Rc8 Ng7 Nfe8 Bg2 f1R a8Q f2 Kd1 d2 Rg3 Rg1 Rg5 f1R Ba1 Rf7 Bc6 Rg3 Qa7 Rg8 h8Q Rff3 Nh5 Rg7 Ba8 Rgf7 Bb2 Qb8 Ba3 Ka2 Kc2 b3+ Kd3 b4 Qc7 b2 Ng7 b3 Re5 Ba4 Bb4 d1Q+ Bd2 Qc1 Bc6 Qa1 Bd7 Qb6 Bc3 b1Q+ Kd2 d3 Nf5 Ka3 Ra7 Qb8 Bb4+ Kb2 Qg7 Qba2 Ng2 Qh1 Qb7 Qh8 Kd1 Rc6 Be1 d2 Bf2 Qh4 Be1 Qhd8 Qb5 Qa8 Qa6 Qdb8 Qb7 Ra6 c6 Ra5 Qh8 Rc5 Qg7 Rc2 Qb4 Nf4 Qb5 Nd5 Ke2 Nc3+ Kd3 Ne2 Qb7 d1Q+ Bd2 Nc3 Kd4 Qf1 Kc5 Qa6 Be1 Ne2+ Kb4 Qb6+
qr1brr2/1b2P1bP/2R1pQN1/3nQ2K/4p1PB/1r2qBnq/1R3q2/4kN2 w - - 0 1 illegal: No proof kernel
BK4Q1/2B1p1Q1/1b1R3p/n1NP2RP/b1Pqqk1r/1n3b2/rn1q1n2/6Nb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 c5 Ne2 c4 Ng1 dxe6 Qf3 e5 Qg3 e4 Qb3 cxb3 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Ke3 Kf5 c4 b5 f4 b2 a4 b3 d4 b4 h4 g3 a5 g2 a6 g4 a7 g3 Bd2 Bd7 Nh3 g1Q+ Nf2 g2 Na3 b1B Nb5 b2 Rh3 b3 Be1 Nh6 Bc3 Nc6 Bd2 Qh1 Rg3 g1Q Ra6 Na5 Bc1 Bg7 Nc3 Ba4 Bg2 Ng4+ Kd2 Bf6 Nh3 Nf2 Rd6 e3+ Ke2 Qd7 Kf3 e2 Ne4 e1N+ Ke3 Qgh2 Nc5 Be4 Ng1 b1N Rg8 b2 h5 h6 Rg3 Nd2 Rg7 Raf8 a8Q b1B Bf3 Rf7 Qg8 Ned3 Rg3 Nb2 Qg7 Bec2 Ba8 Ndb3 d5 Qa7 Bd2 Bd1 Bc3 Rg8 Be5 Be4 Rg6 Bdf3 Rg4 Nd2 Kd4 Rc8 Rg3 Rc6 Qg8 Ra6 Rg6 Bg5 Qg7 Kg4 f5 Rf8 Bf4 Ndb3+ Ke5 Qb6 f6 Q1g2 f7 Qgh1 Nd7 Qd4+ Ke6 Q1g2 Be5 Qf4 Nc5 Qfd2 Bh2 Rg8 f8Q Qh1 Qb8 Rf8 Qe8 Rf4 Bg3 Qh4 Bh2 Bh1 Qeg8 Bef3 Bc6 Re4+ Kd7 Kf5 Kc7 Be3 Rg2 Rg4 Rg3 Kf4 Kb8 Qe4 Ba8 Qf6 Nd7 Bb6 Nc5 Rh4 Rg5+ Ke3 Rd7 Qfd4 Bc7 Ra7 Rd6 Kf4 Qd8 Ra6 Qdg8 Nb7 Qe8 Bd7 Qc8 Ra2 Qch8 N7a5 Qhg8 Ba4
2b1N2b/BP4P1/4bQq1/2pk4/Prpqn2K/nB2R2R/nr2Q3/Nn2br2 w - - 0 1 illegal: No proof kernel
3b2r1/Ppn2N2/4nBRB/b2p1P2/1q1Q3R/1k1P1b1b/p1Nn4/3bKrrQ w - - 0 1 illegal: No possible last move, all moves rejected
4q3/2n2QK1/kr5p/bp1qBp2/R1P1rNPR/q1n1rr2/P3Q1B1/3b1N1r w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 Kd7 Kg4 Kc6+ Kh5 Kb6 e4 f3 c4 b3 e5 f2 g3 d3 e6 d4 e7 d2 e8Q h6 Qde2 d1Q Qf3 b2 Nh3 d3 Qe7 d2 Qfe2 Na6 Qg5 Ne7 Qeg4 Qe8 Qe2 Qb3 Qe4 d1Q+ Be2 f1R Qf3 Qa3 Qff4 Nc7 Bf3 Ned5 Qgg4 Bb4 Qe4 Nc3 Qd4+ Ka6 Bg2 Ba5 Qg7 Rf3 Bf4 Qd5+ Be5 b5 Qe4 Rb8 Nd2 b1R Qe2 Rb3 Rab1 Rb6 Nf4 h3 Nf1 h2 g4 f5+ Qf7 Bb7 Rb2 Bc6 Kg6 Rf8 Rg1 h1R Kg7 Re3 Qe7 Rf6 Qf7 Re6 Rb1 Qd2 Rb2 Bf3 Rb1 Qd5 Rb2 Rh5 Rh1 Re7 Rh4 Ree6 Qd2 Bd1 Qe2 Rf3 Bf6 Re4 Be5 Na4 Rb1 Rbe3 Rb4 Nc3 Rh1 Rhh3 Ra4 Rhg3 Rh5 Rh3 Rh4 Rh1
N1B2bbq/8/K5pq/2RPb2P/Q3Nnrb/rB2kpb1/3r1RPp/4n2Q w - - 0 1 illegal: No proof kernel
Qr3q2/1B4b1/1QP2p1r/B2RP1Kn/Nb4b1/3bpRr1/k1Pq2p1/3n2Nb w - - 0 1 illegal: Other
1qBBn1R1/k1P4q/7n/4KNpP/2rnbQ1p/nrP3bN/p3R2b/n3Q3 w - - 0 1 illegal: Other
nbk5/2PpB1qQ/br2N3/2Bp1p2/2RP3q/2Pq2r1/2n1N2K/1q1nq1RQ w - - 0 1 illegal: Other
3Bqqr1/3r4/n3n1k1/P1pBP1rb/pQpr4/R1b1nQ1K/P4N2/4RNq1 w - - 0 1 illegal: Other
1Q2q1q1/b1Nb2b1/B3P3/n1nr3p/1bqN3P/pB1PR1p1/nR6/2krQK2 w - - 0 1 illegal: No proof kernel
6q1/2b1n1pR/1Qp1rPBB/2P2rN1/bP2pk1q/7R/n1n4K/2rrQq1N w - - 0 1 legal: proof: g4 d5 h4 b5 e4 dxe4 a4 bxa4 g5 f6 Nh3 fxg5 Ng1 gxh4 Bc4 h3 Bd3 Bd7 Bf1 Bc8 c4 e3 f4 Kf7 d4 Kg6 b3 Kf5 c5 e5 d5 h5 d6 a5 d7 e4 Rh2 h4 Qd6 e2 Kf2 e1R Nf3 a3 Kg1 a4 Qc6 a2 Qa6 a3 Qa5 Rh6 Qc3 Na6 Qd2 Re6 Qd1 Nb4 Rb2 h2+ Kg2 h1Q+ Kf2 h3 Kg3 h2 Bb5 Bd6 Nc3 Ne7 Ne2 Qg8 d8Q Bd7 Rd2 Be8 Rd3 Bc6 Rb1 a1R Qb8 a2 Qb6 Rf8 Rb2 Nbd5 b4 Nc3 Qd2 Rd1 Qe1 Qf1 Rbd2 Bb7 Be8 h1Q Bh5 Bc6 Bg6+ Kf6 Re3 Ba4 Rd5 c6 Rh5 Bb8 Rh7 Bc7 Rd3 Qh5 Be3 Qg5+ Kh2 Rac1 Ng3 a1N f5 Na2 Rc3 Qg4 Bh6 Nc2 Ng5 Ke5 Nh1 Kf4 Ra3 Qh4+ Rh3 Rfd8 f6 R8d5 Qb5 Rde5 Qb6 Rf5
5R1n/3rrP1n/2rq4/2N3RP/3N2K1/bbBq4/PQ1Qppp1/q3nrkB w - - 0 1 illegal: No proof kernel
1Bqbb1R1/2n1npPN/N1P2p1k/1n1Qn3/3Rrq2/p4QbP/7K/r1q2B2 w - - 0 1 illegal: No possible last move, all moves rejected
1n1q2q1/3pN2B/2r1br2/1qr2pB1/2nR3n/2RQ1PQ1/1PN1pP2/1k2bK1n w - - 0 1 illegal: Other
r3n2k/2PR1R1b/5bK1/2p2p2/n1q1NB2/1BPn3Q/1n1N2pP/2qrQq1r w - - 0 1 illegal: Other
1k2r3/pN3qb1/Q1r1BbK1/1NPqPn1Q/PRqB4/5p2/1p4Rn/1r1bq3 w - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 d4 hxg4 d5 g5 d6 gxf4 Bd2 exd6 Be3 d5 Bc1 d4 Kf2 b5 e4 d5 c4 Kd7 a4 Kc7 h4 f5 h5 g3+ Kf3 g2 c5 b3 h6 b2 h7 d3 Qe1 d2 Qf2 d1Q+ Qe2 d4 Rh6 d3 Re6 d2 Re8 b4 Re6 b3 Rb6 Qf6 Nh3 g1B Rb4 Nc6 Na3 b1R Nb5+ Kb8 Nf2 b2 Ra3 Qf7 Ng4 Nh6 Rd3 Qe1 Rbd4 d1Q Rb3 Ne7 Nf2 Bg7 Rd2 Re8 h8Q Ng4 Qh5 Qc4 Rc2 Qdd5 Be3 Bd7 Bd4 Nh2+ Kg2 f3+ Kh3 f4+ Kh4 Bg4 e5 Nf5+ Kg5 Re6 Ne4 f2 Bh3 f1Q Qd3 Rc6 Rg2 Bf2 Rb4 Bd1 Ned6 Bh4+ Kg6 Bhf6 Nb7 f3 Na3 Qb3 Qa6 Qfc4 Bg4 Kc7 Bh3 Re8 Nb5+ Kb8 Bg4 Ng3 Be6 Nf5 Qh4 Qd7 Qg5 Qcd5 Qh6 Qbc4 Qh5 Qf7+
B3Rr1K/8/1n3rP1/3r3n/Q2npb1q/P4Q2/krbp1pNP/2R1nNBq w - - 0 1 illegal: No proof kernel
2Q1R1Nq/2p1Nb2/K2Qq2P/2P1n1n1/n1B2n2/1pP4q/1rp3q1/rkbBR3 w - - 0 1 illegal: Other
r1r4N/3b2RP/p2ppPQP/1R1qkBQ1/8/3pB2b/nK1n1qrN/b4n2 w - - 0 1 illegal: Other
bNr1k3/R1r2bbp/4N3/5Pn1/2B2Bq1/pQPKp3/prnP1q2/nQR5 w - - 0 1 illegal: No proof kernel
qB1n1Rn1/1Q1b3p/rbP1Pp2/1Bp5/2KN1Q2/1Pr2q2/3q2p1/1bR1N1kr w - - 0 1 illegal: No proof kernel
3NBk1q/B2Qb2p/p1R1rqQ1/2rbPpnK/5P2/p1R2r2/N1nP3q/2b5 w - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 dxc4 h5 e5 h6 e4 Qb3 gxh6 Rh2 h5 Rh1 h4 Qf3 exf3 Kf2 c5 g4 f5 b4 h3 Kg3 a6 e4 h2 e5 c3 g5 c2 Kh4 a3 b5 f2 b6 c4 b7 c3 Bd3 f1R Nh3 Nc6 b8Q Rf3 Qd6 Bb7 Bb2 c1Q Kh5 c2 g6 Nb4 g7 Bd5 Bd4 Rc8 Nc3 Qf6 Ng5 Nh6 g8Q Rc5 Na2 Nf7 Qg6 Be7 Qd7+ Kf8 Bb5 Qb1 Rg1 c1B Rg3 h1Q+ Rh3 Nc2 Bf2 Nd6 Nf7 Qh2 Nd8 Ne4 Ba4 Qb8 Rb1 Rg3 Rb6 Rf3 Rc6 Ng5 Bb5 Rg8 Be3 Qbd6 Bg1 Qh8 Bd4 Qdf6 Ba4 Ra5 Ba7 Rc5 Rb6 Rg7 Bc6 Rb3 Qe6 Bd6 Be8 Re7 Qd7 Re6 Rc6 Be7 Qc7 Rf3 Qd6 Rf1 Qd7 Qg2 Re3 Rf3 Rc3 Qh2#
r2QQ1n1/2K2R2/3P1nn1/kp3RrB/3bP1N1/1r1p1Pp1/1p1q1nn1/3N1bB1 w - - 0 1 illegal: No proof kernel
2k1Bn2/1b3p2/rbbb4/b5p1/P2p2r1/NpN1nQQK/nPB1P2q/1R5R w - - 0 1 illegal: No proof kernel
1nk5/q5rp/1nbQ2Nb/N1K1PrB1/6Bp/p2PrRp1/4bPrq/2Q3R1 w - - 0 1 illegal: No proof kernel
3Rr3/2rn2P1/QPp3Q1/1q1Nk1pn/1B2Pr1b/1r4qp/2b3pK/R1Nq1B2 w - - 0 1 illegal: No proof kernel
bnR5/2NP4/2Q1N2n/B3rq2/PQPrB1p1/p3qpp1/1pKRn3/b1b2k2 w - - 0 1 illegal: No proof kernel
r4B2/brp1Q2n/p1P2rQp/Pp3q2/1Rn3P1/2N1R2b/qpB2k1K/2Nb4 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 c5 gxh4 Qc2 d5 Qc4 dxc4 b3 cxb3 Kf2 Kd7 d4 Ke6 e4 f5 a4 b5 g3 h3 c6 h6 e5 Kd5 a5 Ke4 e6 f3 d5 a6 d6 h2 e7 b2 d7 f4 Be3 Nf6 Bc5 Nh7 Ke1 f2+ Ke2 f3+ Kd2 Bg7 Be2 f1Q Ra3 f2 Bd1 Qg8 d8Q Nd7 e8Q+ Ne5 Ne2 Bh3 Qde7 Qa2 Nbc3+ Kf3 Qg6 Rhb8 Bc2 Rb7 Nc1 Bf8 Rg1 h1B g4 B1g2 Ra4 Kg3 Rh1 Bf3 Ke3 Bd1 Rb4 Nc4+ Ke4 Kg2 Kf4 Qd3 Re1 f1R+ Bf2 Bg7 Re2 Bd4 Re3 Rg1 Bh4 Ba7 Bf6 Re1 Bg7 Kf2 Bf8 Rh1 Ra4 Rf1 Rb4 Kg1+ Kg3 Rf6 Qf5 Qd5 Qg6 Kf1 Kh2 Kf2 Qc5 Qe4 Qe7 Qf5
Q1NRB3/1rpP2Qb/n3p1p1/1pqP3r/1b2nnk1/1P4N1/b1B1p3/1Rn3K1 w - - 0 1 illegal: Other
3RN2b/P1Pp4/3nb1Pp/K1r2Bb1/Q3NqQ1/p3k2n/2n1rppR/n3B3 w - - 0 1 illegal: No proof kernel
8/1n1p1p2/qRpQPbp1/1nbq3B/p2kP1PQ/1r1b3B/2r5/1NR1bNK1 w - - 0 1 illegal: Other
4b1N1/1PrRnK2/2nB1P2/2Qr4/1q1NbqbN/1R2R1Pk/b7/2q4r w - - 0 1 illegal: No possible last move
r6q/BPRb4/2PN1Rn1/r1P1b1rk/2B1Rp2/6bn/1K2b3/r4QrB w - - 0 1 illegal: No possible last move
Rr1k4/n1b2B2/PrnrBp1N/b7/bq2Pb2/QP1R4/nBq5/2qR3K w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 exf4 h5 a4 h6 gxh6 Rh2 h5 Rh1 h4 b3 a3 Qc2 Bh6 Qc3 Bf8 Qb2 axb2 a4 b5 a5 Ra7 Nc3 Ra8 Na4 bxa4 Kf2 b1N e4 c5 d4 h5 g4 a3 Kg2 c4 d6 f6 d5 f3+ Kh2 h3 a6 c3 g5 h4 g6 a2 g7 c2 Bg2 f2 Bf1 Qa5 Bc4 f1Q Bg5 c1B Bf4 Qd3 Be3 Nc3 Bb5+ Bd7 Ba4 Qc2+ Bd2 Ne7 g8B Nc8 Be6 Na7 Rb1 a1B Nf3 Na2 Kg1 Be5 Bc3 Bcf4 Nd4 Rh5 Nf5 h2+ Kf1 h3 Nh6 Be7 Bb2 Bd8 Re1 Qad2 Re3 Ba5 Rg1 Bc6 d7+ Ke7 d8R h1R Bf7 h2 Rh3 Be8 Bd7 Bec7 Bde6 Ba4 Rh8 Nbc6 Rc3 Rg8 d6+ Kf8 d7 Ke7 Rg3 Rb5 Rf3 Rb6 Rc3 Rg3 Ra8 Rg8 Re3 Rgb8 Rf3 Qcc3 Re3 Qd6 Kg2 Qdc5 Ra1 Rd1 Rg3 Rd5 Rd3 Rd4 Re1 Qc1 Red1 h1Q+ Kf2 Qh4+ Kg1 Qf2+ Kh1 Q5c2 Be8 Qfd2 d8Q+ Kf8 Qd5 Ke7 Qc5+ Rd6 B8f7 Kd8 Qa3 Qb4
1KbqNbq1/bnQ5/4rBb1/p1P3P1/1P6/n2nR1NN/6b1/1kb1Br1B w - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 g4 c5 e4 cxd4 a4 gxf4 g5 b5 axb5 fxe4 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kf2 Kf7 h4 Kg6 c4 Kf5 h5 a5 h6 d5 b6 e5 h7 e3+ Ke2 Ke4 b7 d3+ Ke1 e2 Kd2 e1N Kc3 d2 Bb2 d4+ Kb3 f3 Ka4 f2 Kb5 d3 Nh3 g3 Qh5 d1Q Qf7 d2 Qe8 g2 Qe7 g1B Qe6 Nd7 Kc6 Ra6+ Kb5 Ngf6 b8B Ne8 Na3 Nc2 Nf4 Nc5 Nh3 Nd3 Nb1 Nd6+ Ka4 Nb7 Qf7 Re6 Be2 f1B Kb5 Bb6 Ka6 Na3 c5 Qb3 Qc7 Bg2 Re1 d1B Nc3+ Ke3 Bf1+ Kd2 Ne4+ Kc2 Ng3 e4 Bf6 Kb1 Re3 Bc2 Be2 Rg8 h8N Rg7 Bf3 Rf7 Bd4 Rff6 Nf7 Qa2 Nd6 Rf4 Re2 e3 Ne8 Qad5 Be4 Rf1 Bf6 Qb3 Rf2 e2 Rf3 e1B Re3 Bd2 Bc6 Be4 Bd5 Bg6 Bh1 Bc1 Qd6 Bc7 Ka7 Bb6+ Ka8 Bd1 Bc7 Be2 Kb8 Bf3 Qe7 Qa2 Bce5 Bg2 Bc3 Re4 Qc7 Qg8 Bd2 Re6 Be1 Ba7+
K2kB3/R1RqbQ1B/3N1qR1/q4bbP/Pr5p/1rnq2bq/1BP5/n7 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 d3 c5 d4 cxd4 g4 Bh6 Nd2 Bg7 Ndf3 h6 h5 Bf8 Nh4 Qc7 Qd2 gxh4 g5 Qb6 g6 Qd8 Qg5 hxg5 Kd2 d5 Kd3 b5 a4 e5 f4 b3 g7 g4 f6 b2 f5 b1Q Ra2 b4 Nh3 b3 Ba3 b2 Ng1 g3 Bc5 e4+ Kd2 g2 Bc4 d3 Ke3 d2 Kd4 d1Q+ Ke5 e3 Bf1 e2 Bb4 e1B Ra1 d4 Ke4 d3 Ke5 d2 Ba3 Qa5+ Bb5+ Nc6+ Kd5 Kd8 f7 Rb8 f6 Nd4 Nf3 g1B Rh3 Be7 Ne5 Bg3 Nc4 Nb3 Kc6 Be3 Nd6 Qa2 Rc1 b1Q Bb2 Qba1 Rb1 Qe2 Rg1 d1Q Rg2 Qed3 Rg1 Be5 Rg6 Bg5 Re3 Rb7 Re4 Qh3 Rc4 Bf5 Rc3 Qdd3 Rc5 Nh6 g8B Bg3 Bh7 Ng4 Rc3 Re8 f8Q Nf2 f7 Ne4 Qg7 Qaf1 f8R Na1 Qf7 Qe6 Rfg8 Qfd1 R8g7 Qf6 Rc5 Rb8 Rc4 Nc3 Rc5 Ra8 Kb7 Rg8 Be8 Rb8+ Kc6 Rb4 Rc4 Nb5 Kb7 Qdg4 Rc6 Qgd4 Ra6 Nc3+ Ka8 Qdd5+ Bc6 Qde6 Ra7 Qd7 Bb5 Re8 Bc6 Bf8 Bb5 Re3 Bc6 Be7 Bb5 Qdc7 Be8 Qd7 Bc1 Re1 Nc4 Bed6 Qg8 Qde6 Rc7 Qd7 Qf7 Be7 Nd6 Rg1 Ba3 Rgb1 Bc1 R1b3 Ba3 Qh2 Bb2 Qh3
8/1K2RrNr/2bP4/4qnbp/q2kB1b1/Bnb5/1PR1Q2P/1Bq2Rqq w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 e3 exf4 Be2 fxe3 Bf1 g5 Nc3 Ke7 Nd5+ Ke8 Nf4 gxf4 Ke2 Ke7 Kf3 Kf6 Ke4 c5 d4 a5 g4 h5 b6 e2 d5 e1Q+ Be2 c3 d6 a4 Kd5 f3 b7 a3 Qd2 c2 Nh3 c4 Bd1 a2 Rf1 f2 Be2 c3 Rg1 f1B Bf3 Qd7 Qe2 Rh7 Rh1 Bg2 Qe3 Nh6 Be4 Bg7 Ng5 Ra7 Rf1+ Nf5 Rg1 Na6 b8R Nc5 Rb4 Nb3 Qd3 Qa4 Bd2 c1Q Rb7 c2 Re7 Qg3 Rb1 a1Q Bb4 Bh1 Qb5 Qe5+ Kc6 Rd7 Rg3 Qg1 Ba3 c1B Ne6 Bg5 Rf1 Qc1+ Rc3 Bf3 Bc5 Bb7+ Kb6 Bc6 Qe2 Nh6 Rc4 Qd5 Bb1 Be3 g5+ Ke5 g6 f5 Re8 f4 Rc2 Rf7 Re7 Bg4 Kc7 f3 Re1 Bf6 g7 Nf5 Ba3 Ke4 Kb8 Bc3 Kc8 Qe5 g8B Rf6 Ng7 Kd4 Bc4 Rf7 Bd3 Bf4 Be4 Bg5 Qb5 Qh1 Kc7 f2 Qe2 f1Q Kb6 Bb5 Kb7 Qfg1 Rf1 Bc6+
3br1r1/q2qPk1N/3P1q2/1n1nP1r1/4rQ1b/3nqB1B/2pN1N2/5RBK w - - 0 1 legal: proof: d4 a5 h4 d5 b4 axb4 c4 dxc4 h5 e5 h6 gxh6 Nd2 h5 Nb1 h4 e4 Bc5 a4 Nh6 d5 Bg4 Ra3 Ng8 Rd3 Qf6 Rd4 exd4 f3 Bf5 e5 Be4 fxe4 Bf8 Ba3 Qe7 Bc1 Qd8 Kf2 h5 g4 b5 Kg2 c5 g5 f5 g6 h3+ Kh2 h4 d6 d3 g7 b3 a5 c3 a6 f4 e6 f3 e5 b4 a7 d2 Bg2 f2 Qc2 d1Q Qe2 f1Q Qe1 c2 Qe3 c4 Qd3 c3 Qf3 b2 Qe3 b3 Qf3 Ne7 g8N Qde2 Bh6 c1B Qf5 c2 Qh7 Qf6 Bd2 Nd7 Bh6 Bg5 Qe4 Nc5 Qa4+ Qd7 Qa2 Qe3 Bf1 Nd3 Ne2 Nd5 Nbc3 b1N Nc1 b2 Qb3 Be7 Rg1 Bd8 e7 Kf7 Nb5 Nc3 Qc4 b1Q Nb3 Qa2 Kh1 h2 Bh3 Rc8 a8B Qaa7 Rf1 Rb8 N5d4 Nb5 Nf5 Rc8 Qf4 Rb8 Kg2 h1R Nd2 Rg1+ Kh2 Rc8 Ng3 Rc4 Nh1 Re4 Nf2 Rg3 Bg2 h3 Kh1 h2 Bh3 Bh4 Bb7 Rg5 Bc6 Qff5 Nf6 Re8 Nh7 Qf6 Bg2 Qdb7 Bd7 Rgg8 Bdh3 Qd7 Bf3 Bg3 Kg2 h1R Bg5 Rh2+ Kg1 Rg2+ Kh1 Bh2 Bh4 R2g6 Bg3 Bg1 Bh2 Rg5 Ng4 Bf2 Bg1 Bg3 Nf2 Bh4
4q3/r2P2p1/kN2qrR1/2Pb1B1n/2r1B2n/b3Rn1P/Br1qnK2/1Q1R4 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 b4 a5 b5 a4 b6 a3 Bb2 axb2 Na3 cxb6 c5 b5 Nc4 dxc4 Rc1 b4 Rb1 Nd7 Ra1 Nb8 a4 Kd7 e4 Kc7 d4 b1Q e5 f5 h3 b5 e6 Kb7 a5 f3 d5 b3 h6 b4 e7 c3 e8B f2+ Ke2 b2 h7 b3 d6 f4 d7 c2 Qd5+ Ka6 Qf7 c1N+ Kf3+ Ne2 Ra2 Bd6 Kg2 Qf5 Qd5 b1R Kf3 b2 Bg6 Nh6 Qe4 Ra7 Qc2 Qe8 Ra1 Nc6 Qa4 Be5 Qa2 Nd4+ Kg2 Qfe6 Be4 Nf3 Bf5 Bb7 Rh2 Rf8 h8R Rc1 Qb1 Rf6 Rh1 Rc3 Ra3 Rc4 Re3 Bd5 Rh7 Bc3 Rh8 Bb4 Rh7 Ng4 Rh6 Nge5 Rg6 Ba3 Bc2 Ng3 Bf5 Nh5 B1d3 f1N Kf2 Nfg3 Ne2 Nh4 Nc3 f3 Rd1 Ne2 Na4 Q6e7 Bde4 Qe6 Qd3 b1Q Nb6 Qb2 Qb1 Qc1 Bc2 Qd2 Bb3 Kb5 a6 Ka5 Kf1 f2 Ba2 Nef3 Rd3 Rb7 a7 Ka6 a8B Rc7 Re3 Ra7 Rh6 Ng6 Kg2 f1R Bc6 Re1 Kf2 Ngh4 Rg6 Rg1 Ba4 Rgg4 Bac2 Rb4 Bcd3+ Rgc4 Bde4 Rb2
NK4b1/1PNqqP2/1nnqbk2/2b2P2/4Q3/B1pNb1n1/n3rR2/q2R2R1 w - - 0 1 legal: proof: c4 g5 f4 a5 e4 d5 h4 gxh4 f5 Ra6 a4 b5 e5 Rf6 exf6 bxa4 Bd3 dxc4 Be4 Bd7 Bd5 Bc8 Be6 fxe6 Ke2 Kf7 Kf3 c5 Kf4 h5 Ke5 h3 d4 h4 g4 a3 b4 a2 g5 c3 d5 a4 b5 c2 d6 h2 d7 h3 b6 a3 b7 c4 Bf4 c1N Qd2 c3 Qb2 Nc6+ Ke4 e5 Kd5 e4 Kc5 e5+ Kd5 e3 Qf2 e2 Nf3 e1B Bd2 e4 Qg1 e3 Nd4 e2 Nc2 Nge7+ Kd6 Bf2 Qg2 e1Q Qe4 Be3 Rf1 h1B Rf2 h2 Nb4 Bf3 Nd3 h1N Qd4 Qe8 Kc7 Ng3 Qe4 Rh2 d8R Be6 g6+ Kg8 g7 Kf7 g8N Nc8 Rd4 Bc5 Ne7 Nb6 Nc8 Bd1 Rd6 Bdb3 Rd5 Qd1 Rd6 Qe7+ Rd7 Na4 Nb6 Bbd5 Na8 Nb6 Rf4 Re2 Rf2 Bed4 Bh6 Be3 Bf8 Qa4 Nd2 Qa6 Nb3 Qb5 Rb1 a1Q Nd4 Na2 Rg1 Qb4 Nb5 Qd1 Qe5 Nc1 Qe4 a2 Bh6 a1Q Bf8 Na5 Kb8 Na2 Rd6 Qda4 Nbc7 Qad7 Ne1 Bb3 Rd1 Qbd4 Nd3 Q4d6 Bh6 Bed4 Bc1 Be3 Ba3 Bbd5 Ka7 Nc6+ Ka6 Bb3 Rfg2 Bed5 Rh2 Kf8 Rf2 Bg8 f7 Kg7 Rf3 Kf6 Rf2 Na5 Ka7 Be6 Kb8 Nc6+
nR2Bq1N/r1Bp2Q1/2rP4/2b5/PP1q1qrp/nk6/r5Nr/3bBN1K w - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 g5 h4 f5 exf5 gxh4 Rh3 a5 Rb3 a4 a3 axb3 a4 Ba6 Bd3 Qc8 Na3 Nf6 Qf3 Nh5 Ke2 Bh6 Bb2 Nc6 Nh3 Bf8 Rh1 Qd8 Nb1 Qc8 Ng1 Nf6 Ke1 Nb8 Bf1 Ng8 Qd1 Qd8 Bc1 Bc8 d4 Kf7 g4 h5 f4 c5 Kf2 e5 Kg2 e4 d5 c3 g5 h3+ Kh2 b2 f6 c4 f5 e3 Qd4 h4 Qc5 e2 Qf2 e1R Qe3 c2 Qc5 c3 Qa5 Bc5 d6 Bb7 Nd2 b1Q Ba6 Nh6 Bd3 Qb2 Qb6 Rg8 Nf1 Ra7 Ne2 Bf3 Nf4 Qf8 Ng2 Re2 Bd2 c1Q Be1 c2 Rg1 Qf4+ Kh1 c1R Qb5 h2 g6+ Ke8 g7 Kf7 Qa6 Ng4 Bc2 Rd2 Qe2 Ne5 Qf2 Qbd4 Qg3 Rh8 g8N Bh5 Ne7 Bd1 Ng6 Rg8 Qf2 Na6 Nh8+ Ke8 Be4 Nc4 Bd5 Ra2 f7+ Kd8 f6 Rg4 Be4 Na3 Bg6 Kc8 Qg3 Kb7 Bh5 Qe8 f8Q Kc6 f7 Kd5 Qg7 Kc4 f8B Nc7 Be7 Na8 Bd8 Qef8 Bc7 Rc3 Be8 Kb3 Nge3 Bb6 Rg2 Rc6 Re2 Bc5 Ng2+ Qfe3 Qf2 Qef4 Re5 Bb6 Rb5 Bc5 Qe2 Nc4 Qee5 Qh6 Rb8 Na3 Nge3 Qhf6 Qg3 Qff4 Qf2 Rg3 Qe2 Rh3 Kg2 h1R Qd2 R1h2+ Kg1 Rf2 Qe2 Rff3 Qh2 Rfg3+ Kh1 Rg4 Ng2 Rxh2+
q2n1Rr1/P1N4N/3K1P2/5p1B/1Bq1pq2/2bbB1nP/3b2Q1/rNq1kr2 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 h5 b4 axb4 g4 hxg4 e5 Bd7 Ba3 Be6 Bc1 Bc8 a4 Nf6 f4 Ng8 f5 Rh3 e6 Rh8 Ra3 Qd7 Rf3 fxe6 f6 Qd8 Rf5 exf5 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 Kh4 d4 g5 h3 Kg3 a5 Kf2 d6 c5 a6 b5 d7 b3 d5 g3 d6 g2 Qh5 b2 Qg4 c4 Be2 c3 Bf1 b4 Nd2 b1Q Ndf3 c2 Ne2 g1Q Qc4 g4 Bf4 c1Q Nh4 g3 Ke6 b3 Qc3 g2 Qe5 b2 Qc3 Nh6 Qd4+ Ke1 Qd5 Qgc5 Qb7 g1B Bg2 Nf7 Be3 Rg8 Bf3 Nc6 Bh5 Bh6 Nc3 Qda5 Ng6 Qe4+ Ne5 Qcd4 Nb1 Qf4 Ng6 Qda4 Nf8 Ra7 Nc3 b1R Nh7 Qd8 Kd5 e5 Kc5 Qf8 d8N Nd4 Ne6 Nd8 Qg2 e4 Nc7 Ne2 Kd5 Ng3 d7 Ra1 Nb1 Rb7 a7 Rb4 Bc5 Ba6 Be3 Bd3 Rh2 Rb2 Rh1 Rf2 Rh2 Nb7 d8B Rf1 Be7 Qa8 Rh1 Bf2 Rg1 Qb4 Ke6 Nd8+ Kd7 Qbc4 Bb4+ Q1c3 Bc1 Bd4 Be3 Qg4 Kd6 Qd2 Qh2 Bc3 Rg2 Qdd1 Rc2 Qg5 Qg2 Qc1 Rd2 Bc2 Rd5 Bd3 Re5 Qh4 Re8 Qg4 Rf8 Qf3 Bd4 Bhd2 Be3 Qf4+
KN1BN1r1/1nR1R3/6Pp/q1R2P1k/nr5r/2P1n1r1/2bQr2p/1Nbr4 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 h4 gxh4 b4 a6 b6 Bg7 b7 Nh6 b5 Bf8 b6 Ng8 Bb5 axb5 Kd2 Kf7 f4 Kg6 g4 e5 c3 d5 g5 h3 Ra6 b4 Ra4 b3 Ra1 d3 Ke3 d2 Ra3 b2 Qg4 d1R Ra6 h2 Qh4 d4+ Kf2 e3+ Kf3 e4+ Kg3 d3 Ra1 e2 Nf3 e1R Kf2 e3+ Kg3 d2 Ra7 e2 Nd4 Ba3 Kf3 Rg1 Ke4 Nc6 b8R Na5 b7 Ne7 Ne6 Nf5 Ng7 Rg3 Re1 Ne3 Ne8 Bf5+ Ke5 h6 Rc8 Rg8 b8N Nb7 Rc5 Qa5 Qh3 Be4 Qd7 Kh5 f5 Bd3 g6 Bc2 Ra6 Ra7 Rc6 Ra6 Qd5 Rb6 Rc7 Rb4 Ke6 Re4+ Kd7 Rh4 Rf1 e1R Kc6 Re2 Re1 Nc4 Qd3 Nb6 Qd5 Na4 Qg2 Rf2 Ree7 Re2 Qd5 Rdg1 Qa2 d1N Bg5 Ne3 Qd5 Rd1 Qd2 Bb4 Na3 b1R Bf6 Rb3 Nb1 Ba3 Bg5 Bc1 Bf6 Nd6 Bg5 Nb5 Kb7 Rbb4 Bf6 Qb6+ Ka8 Nd6 Re4 Qb5 Bd8 Nb7 Ree7 Qa5+
K1qqNr2/2qRnb2/3p1B2/N3nP1P/R1r1R1PQ/p3n2q/N7/n2q2k1 w - - 0 1 illegal: No possible last move
2BBr3/3n1Q2/2BRR1R1/PrPp3k/5bp1/N2bb2r/rrPbK1nb/8 w - - 0 1 illegal: No proof kernel
1Q1bb2R/n3n1rK/b3BN2/2P2pk1/qbnP4/2p4P/1b1N1R2/2nN1Rb1 w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 g4 exf4 a4 c5 g5 a5 g6 d4 Na3 hxg6 Nb1 g5 Na3 g4 Bb2 Ra6 Bc3 dxc3 Nb1 Rb6 Nf3 cxb4 Ng1 b3 Na3 b4 Nb1 Rb5 axb5 Qc7 Bg2 Qd6 Bf1 Qd8 Kf2 Ke7 e4 Kf6 b6 g5 b7 g3+ Kf3 a4 d3 g2 h3 b2 Be2 a3 Qe1 b3 Qd1 g4+ Kf2 f3 Kg3 a2 Kf4 f2 Nd2 f1N Ngf3 b1B Ne5 g1B Nc6 g3 Nf3 g2 Ncd4 b2 Qd2 Ne7 Nc2 Ng3 Ne3 Qe8 Nd1 Rh7 Rh2 Nbc6 b8R Bb6 d4 g1B Rf2 Rg7 e5+ Kg6 e6 Ba6 Qe1 Na7 Nd2 Bd8 Bg4 Qa4 Qe5 Be4 Rc8 b1N Qb8 Na3 Ke5 Kh6 Kf6 Ne2 Rc1 a1B Bf5 Ng6+ e7 Bb2 Be6 Bc6 Kf5 f6 e8N Bb4 c5 Nc4 Rb1 Nc1 Ra1 Nf4 Rb1 Nd5 Ra1 Re7 Rb1 Kh5 Ra1 Kh4 Kg6 f5 Nf6 Rg7+ Kh6 Ne7 Rb1 Bb6 Rh8 Bd8 Ra1 Be8 Rb1 Rg6+ Kh7 Kg5 Ne3 Ne2 Rbf1 Nc1 Nd1 Rg7+
7r/P1qbKRbN/2rprQb1/prk3P1/4P3/R5B1/rrNn2b1/4N1R1 w - - 0 1 illegal: No possible last move, all moves rejected
3R2n1/4NK1R/b1pR1n2/rN2q1p1/PkP1P3/2p1q1bn/b4B2/3NrrQ1 w - - 0 1 legal: proof: g4 a5 f4 e5 b4 exf4 e3 h5 gxh5 axb4 a3 Bd6 Bc4 Bf8 Ba2 b3 Ke2 bxa2 Kf2 Ke7 Ke1 Ke8 c4 d5 Qb3 d4 Qc3 dxc3 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 h4 g5 e4 b5 h6 f3 a4 b4 h5 c6 d3 f2 h7 f1R h6 b3 d4+ Kb4 d5 f4 d6 f3 d7 f2 Ke6 b2 Rh5 Ba6 Nh3 Qa5 d8R Nd7 Kf7 Bd6 Be3 Ndf6 Na3 b1B Nb5 Bg3 Bd4 Re1 Ba7 f1N Nf2 Nd2 Nd1 Nf3 Bf2 Ng1 Rd6 Ne7 Rd8 Re8 h8N Neg8 h7 Nh3 Ng6 Re5 h8Q Rf5 Ne7 Rf4 Ba7 Rff1 Rh7 Qc7 Qg7 Qe5 Qf8 Bd3 Rc1 a1Q Bf2 Bb1 Rc2 Qb2 Rcd2 Ba2 R2d6 Qd2 Qg7 Qe3 Qh6 Ng1 Qh2 Nh3 Qg1 Bb7 Kf8 Ra5 Kf7 Ba6
2Nr2qq/N2B1nkN/3b1b1q/2p1pB2/r1KP2B1/1rp1P3/r5bP/2RQ4 w - - 0 1 legal: proof: b4 a5 f4 axb4 a4 g5 c4 e5 g4 h6 f5 d5 Ra3 dxc4 Rf3 Nd7 Rf4 Nc5 Bb2 Ne6 fxe6 Bd6 Bd4 Bf8 Bf2 Qd7 Bh4 gxf4 g5 Qe7 g6 Qd8 Bg5 hxg5 d4 f5 Kd2 c5 e3 b5 g7 b3 Kc3 b4+ Kd2 f3 e7 Kf7 e8N f4 a5 c3+ Kd3 f2 a6 b2 a7 f3 Na3 b1R Nf6 b3 Nd5 b2 Ne7 g4 Qd2 g3 Bg2 f1R Bh3 f2 Qc2 g2 Nc4 Nh6 g8B+ Kg7 Ne2 g1B Nf4 Bb7 Nc6 Nf7 Qc1 Bd6 Bh7 Qg8 Be4 Re1 Nb6 Re2 Bhf5 f1Q Bf3 Qh3 Qd1 Qh6 Nc8 Bf2 Nd5 Bh4 B3g4 Bf6 Kc4 Rd2 N8e7 Rd8 a8B Ra1 Re1 b1Q Na7 Rda2 Nec8 Bc6 Rf1 Qb8 Bb7 Rb1 Ba6 Ba8 Bb5 Rb3 Bbd7 Bc6 Qc2 Rh7 Rc1 Qh8 Qd1 Qa8 Nf4 Bg2 Nh3 Qd5+ Kd3 Qe6 Ng5 Qee8 Kc4 Qef8 Qd3 Qfg8 Qd1 Kf8 Bde6 Rg7 Ne4 Ng5 Nb5 Rb7 Nba7 Nf7 Bd7 Kg7 Ng5 R7b6 Nh7 Rba6 Bg6 R6a5 B6f5 R5a4+
1r2n2n/kp1qp1Nq/B1r4P/N3K1B1/rR2Q3/4nP1b/P4N1p/2qr1B2 w - - 0 1 illegal: No proof kernel
1qB3K1/3p3b/PPn3k1/1qb3br/rQr1n2P/2p1pN1B/3pN2R/2N2B2 w - - 0 1 illegal: No possible last move
1Bb1r1k1/1p1R2q1/N4npr/1PbR3Q/4R3/4rP1P/n1p1pBK1/qb1B4 w - - 0 1 legal: proof: c4 d5 e4 h5 g4 hxg4 b4 a5 Na3 f6 Nc2 f5 b5 fxe4 Nb4 axb4 d4 exd3 cxd5 Qd7 Qb3 Qd6 Qd1 Qd8 a4 Kf7 d6 e5 d7 c5 h3 g3 f3 e4 a5 b3 a6 g6 a7 b2 Ra4 b1B Be2 c4 Kf1 c3 Be3 c2 Kg2 d2 Bf2 e3 Re4 Qf6 d8B Rh6 Bc7 Na6 Bb8 Nb4 Qe1 Bc5 Bd1 Qc3 Ne2 Nf6 Nf4 Na2 Nd3 Kg8 Nb4 Qd4 Rg1 Qd7 Na6 Qg7 Be2 d1Q Qc3 Ng4 Qe5 Nf6 Qh5 Qd4 Rd1 Qa1 Bf4 Rb8 Rd7 Ra8 Bd1 e2 Kg1 g2 Kh2 Rb8 a8R g1R Rd5 Rg4 Rd7 Rh4 Kg2 Rg4+ B4g3 Rg5 Rd5 Re5 Bh2 Be6 Rd7 Rf8 Rad8 Re8 Rd5 Bc8 R8d7 R5e6 Bb8 R6e7 Red4 Re3 Rc4 Bb4 Re4 Bc5
8/1PKp1RNN/p2r1nn1/5r1b/2n2P1b/RpP2R2/Bqp3Q1/1r1kN1r1 w - - 0 1 illegal: No proof kernel
1B1r2k1/bPq5/2p3P1/BBRrp3/bp2PnN1/Qr4Rq/r3p1n1/2K2R2 w - - 0 1 legal: proof: e4 f5 c4 g5 h4 gxh4 Qf3 d5 cxd5 f4 Qg3 Qd6 Qe3 Qd8 a4 fxe3 a5 b6 Ba6 bxa5 Bc4 Bh3 Bf1 Bc8 b4 Kf7 b5 Qd6 Nc3 Ke8 Na2 Qd8 Nb4 axb4 Kd1 Kf7 g4 a5 f4 h5 d4 e5 d6 h3 f5 h2 b6 e2+ Kc2 a4 f6 a3 d7 h4 b7 a2 g5 h3 d5 Bc5 d6 Na6 Be3 Ba7 Kc1 Nh6 g6+ Kg8 Nf3 Nc5 Rg1 h1Q Rg3 Ng4 Nh2 Ne6 Bb6 Rb8 Ba5 Ne3 Ng4 h2 Rb1 Qf3 Bh3 Ng2 Rb3 Qd3 Rc3 Nef4 Rc5 Qe7 d8B h1R+ Kb2 a1R d7 Rhd1 f7+ Kg7 f8R c6 Rf5 Kg8 Bdc7 Qa3+ Kc2 Rd5 Rf7 Ra8 Bb8 Ra2+ Kb1 Qd3+ Kc1 Qd6 Rf5 Qc7 Rf7 Rb2 Rf6 Rb3 d8Q+ Kg7 Rf5 Be6 Qg5 Kg8 Qh4 Nh5 Rf1 Qf3 Qg5 Bf7 Qe3 Nhf4 Nh2 Qh5 Be6 Qh3 Ng4 Kg7 Qc3 Rhd8 Qb2 Kg8 Qa3 Rd4 Bc8 Bc4 Bd7 Bb5 Be8 Ba4 Bf7+ Kf8 Bc4 R4d5 Bd3 Kg8 Bb5 Rd2 Rc2 R8d5 Rcc3 Ra2 Rc5 Qg7 Bbc7 Rad8 Bb8 Qc7
N2n4/1n1rKp1B/PP4bN/1N1PQ1p1/n1RR1p1p/1r2R1q1/4n1q1/5qk1 w - - 0 1 illegal: No proof kernel
1N1NNnn1/1p1Q1pP1/2pq2PB/2pBBnKp/5p1P/Rr4b1/6r1/3r3k w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 g6 c4 Qd3 a4 Qf3 c5 Qh3 b5 Bd7 b6 axb6 g5 bxc5 f3 Bg4 fxg4 Qd3 Ra3 Qd4 Rf3 Qd8 Rf5 gxf5 Kf2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 h5 h4 e6 a5 e3 g6 c6 a6 e2 g5 e1R g7 Rh6 g6 Qb6 a7 e5+ Kg5 Ke4 d5 Re3 d6 Qc7 d7 Rh8 d8B Qd6 Bc4 Rb3 Nh3 Nd7 Bc7 Re8 Qd2 Kf3 a8N e4 Nc3 e3 Ne4 e2 Nf4 e1N Nb6 Nc2 Nf6 Re2 Ne8 Nd4 Ne6 Kg2 Rh3 Kg1 Rd3 Kh1 Nd8 Rf2 Rg3 Rg2 Bd5 Be7+ Nf6 Nf8 Nd7 Qe5 Qd3 Bd6 Ne8 Qe6 Bd2 Be5 Nb8 Qd6 Rg4 Bg3 Be3 Nb5 Ra4 Nd4 Ra3 Rb4 Bf4 Rb3 Be5 f4 Bf6 Qe7 Be5 Qd7 Qf5 Qd6 Qd7 Nf5 Qe7 Kg1 Nc7 Ngh6 Nde6 Rf2 Bg2 Nd7 Bf3 Rd8 Ne8 Nf8 Qc7 Rd7 Nd8 Qe7 Qc8 Rd6 Qd7 Rd1 Bd5 Qd6 Be7 Ng8 B7f6 Nd4 Be7 Nde6+ Kf5 Rg2 Bg5 Kh1 Bh6 Nd4+ Kg5 Nf5
1rb3q1/2nP1n1Q/2R1r1qB/8/KbN1q1Bk/2r1p2P/Rn2P1bb/4RbB1 w - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Nc3 h4 Ne4 dxc6 Ba3 c5 Bc1 c4 Ng3 hxg3 d4 Kf7 Kd2 Kf6 Kc2 c5 a4 g5 f4 e5 a5 b5 d5 e4 a6 c3 Kb3 e3 f5 g2 h3 c2 d6 g3 d7 c4+ Ka2 c3 Kb3 g4 a7 Kg5 f6 Nh6 f7 Kh4 Qd2 Qe7 Qd3 Qe4 Ba3 c1N+ Kc2 b3+ Kb1 b4 Bb2 Na6 Qc2 Nc7 Ra6 Rb8 a8R Nd3 Qd2 c2+ Ka1 Bc5 f8B Nf7 Qc3 Rh6 Ra5 Re6 Ba3 b2+ Ka2 b1B+ Kb3 c1R R8a6 Nb2 Ra7 Bd3 Qg7 Rc3+ Ka2 Be7 Rc5 b3+ Ka1 Bda6 Rc6 Bab7 Bd6 Ba8 Bf4 Bb4 Be5 Na4 Bf4 b2+ Ka2 Bab7 Bh6 Ba8 Qh7 b1B+ Ka1 Nb2 Bd6 Bd3 Ka2 Bda6 Bdf4 B6b7 Ra3 Kh5 Nf3 g1B Ra4 g2 Nd2 g3 Nc4 Bh2 Be5 g1Q Bg2 Kh4 Bf3 g2 Bg4 Qc1 Rd1 g1Q Re1 Qcc2 Ra7 Qg6 Bd6 Qce4 Be5 Rc1 Kb3 Qg8 Ra2 Rc2 Bh5 Q1g6 Bg4 Qf4 Rb6 Bg2 Rc6 Qfe4 Bd6 Bf1 Be5 Nd3 Ka4 Rc3 Rc5 Bd5 Rc6 Qef5 Bef4 Bdg2 Bd6 Qe4 Be5 Bg1 Bh2 Bf2 Rb2 Bg3 Bg1 Bh2 Ra2 Nb2+
2k1nq2/r4R1r/1b1br3/2B3q1/1p3n2/1PP2nQ1/KRNNP3/nN1b1Rrq w - - 0 1 illegal: No extended proof kernel
1NrR1Q1b/1nn2b1r/1RP1B3/3r2B1/q1pRnB1K/3br1Pn/2P2qk1/1q6 w - - 0 1 illegal: Other
1nrN4/PK1Rp2Q/nN1RPqq1/1n1Bb3/r1b5/b1R1Pb2/nk6/n4n1N w - - 0 1 illegal: Other
B7/2n1q1K1/pqNb1pQP/PN2r1R1/3n1P2/2rb1rb1/1kbbq1R1/1N1R4 w - - 1 2 legal: proof: g4 b5 c4 bxc4 e4 d5 g5 dxe4 b3 c3 Bb2 cxb2 g6 hxg6 Qf3 g5 Qd1 g4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 c5+ Ke3 Kd5 f4 e5 d4 c4 a4 g3 a5 a6 b4 g2 h5 c3 h6 g4 b5 c2 b6 c1B+ Nd2 b1B b7 f6 Rh2 g3 Rh5 Nc6 b8R Nge7 Rh2 Bc2 Rb2 Bf5 Nf3 g1R Rf2 g2 Ra4 Rc8 Bb5 Rf1 Nh2 g1Q Ke2 e3 Kf3 e2 Nb1 e1Q Qd3 Bd2 Ra1 Rg8 Ba4 Rg5 Rb4 Bh7 Qg6 Qe8 Rb5+ Kc4 d5 Rc7 d6 Nd5 d7 Qe7 Qg8 Bhd3 d8N Rc8 Qh7 Nc7 Qg6 Rh5 Rd5 Rf5 Bb5+ Kb3 Rc5 Rh5 Bc4+ Kb2 Bd5 Qh7 Be4 Bd6 Rd5 Qe7 Rb5+ Nb4 Ba8 Rg5 Nc6 Rf5 Qg3 e4+ Kg4 e3 Rg2 e2 Nf3 Re5 Nfd4 Rf3 Rd5 Qef1 Nb5 Qb6 Kh4 Qd1 Qg6 e1B+ Kg4 Bg3 Rc5 Re2 Rg5 Re5 Kh5 Qe2 N1a3 Nbd5 Rd1 Ne6 Nb1 Nd4 Qf5 Nc7 Kg6 Re8 Qe4 Rc5 Qf5 Rc3 Qe4 Qd8 Kg7 Re5 Qg6 Qe7+
1nR1Nqr1/1BQrn2b/2R3r1/4R3/p1q4P/4B1p1/PbPr1B2/1bk1rq1K w - - 0 1 illegal: No possible last move, all moves rejected
kB1BB3/1b2bn1r/rnrRP1Q1/2p1K2r/2P1P1N1/R2r3p/5q2/R1r1rn2 w - - 0 1 illegal: Other
3nR2K/Bbr2p2/nr4Bq/1kB1n3/2nP3P/R1R2P2/1b3pN1/nbn2rQ1 w - - 0 1 illegal: No proof kernel
b3bNB1/1R2pBKb/2QPn2p/1B2N1n1/r2n1N1P/1r2P1q1/2b3nk/r3b3 w - - 0 2 legal: proof: c4 f5 b4 d5 e3 dxc4 b5 f4 b6 f3 Na3 axb6 Bd3 b5 Bf1 b4 d3 g5 Kd2 Nf6 Rb1 Qd4 Rb2 Qd7 Nc2 Qd5 a4 Ng8 Na3 Qd8 Ke1 Qd6 Re2 fxe2 Kd2 Qd8 f4 Qd5 f5 Qf7 Bb2 Qd5 Be5 Qd8 Bf4 gxf4 h4 Kd7 g4 e1N g5 b5 d4 c5 a5 f3 d5 f2 d6 c3+ Ke2 h6 f6 Ke6 f7 Kf5 a6 Kg4 g6 Kg3 g7 c2 a7 c1R Qb3 c4 Qc3 b3 Qd3 c3 Nf3 b4 Qf5 c2 Qb5 b2 Bh3 f1B+ Kd2 b1B Qc6 b3 Kc3 b2 Kd4 Nf6 Ke5 Ne4 g8B Nd7+ Ke6 Ndc5+ Ke5 Bg2 Nb5 Bd7 Be6 Bg7+ Kf5 Bc3 Bh7 Qg8 f8N Rd1 Ng6 c1N Nc7 N1b3 Nf4 Bc2 Bg6 Ra1 Ne5 Bd2 Rf1 Kh2 Qa6 Bf3 Qb7 Ng2 Rb1 Be1 Bh5 Rb8 a8B Qg3 Qb5 Rhc8 Bc6 Be8 Bg8 Rd8 Nce6 Ng5+ Be4 Rdc8 Bd3 Ba8 Bhf7 Nd4+ Kg6 Rb7 Nf8 Nce6 Qd5 Rc4 Qe4 Rca4 Qc6 Nd8 Kg7 Rb6 Ba6 Bh7 Rc1 b1B Bf1 Bbc2 Rb1 Rb3 Rb2 Rc3 Rb7 Rb3 Bb5 N8e6+
4n1n1/1BQnn2k/3B4/3r1Pqp/Rq6/b2B1pPP/n3bNnK/Nb1r1N2 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 f4 g5 f5 a5 Ra3 axb4 Rf3 Qb6 Rf2 Qd8 Rf4 gxf4 Kf2 Kf7 c4 Kg7 g3 b5 Kg2 d5 h3 e5 a5 h5 c5 f3+ Kh2 e3 a6 e2 c6 e1Q c7 e4 a7 b3 Nd2 b4 Nc4 b2 Bd2 b1N Bf4 e3 Qd3 e2 Bg2 b3 Bc1 b2 Ne5 Nd2 Qb1 d3 Qc2 b1B Qb3 d4 Qb2 Nd7 Qb3 Ne4 Qb5 d2 Qb2 d1N Nd3 Qg5 Qc3 Ne3 Ba3 Ba6 c8B Nd6 Qc2 Ne8 Bb7 Nd5 Bd6 Nde7 Nf2 d3 Bf1 d2 Qc7 Rd8 a8N d1N Nb6 Kh7 Nd5 Qb4 Ne3 e1N Ne2 Ng2 Nd4 Nc3 Nb3 Na2 Na1 Be2 Rg1 Ra8 Rh1 Ra5 Rg1 Rd5 Rh1 Bd1 Bd3 Be2 Nf1 Bg7 Ne3 Bb2 Re1 Ba3 Nf1 Ngf6 Rd1 Rf8 Rc1 Nfg8 Rc6 Rf6 Ra6 Re6 Ra5 Re4 Ra4 Red4 Bda6 Rd2 Bd3 Rd1
2BBq1N1/1rp2P2/1b1b1n2/1qn2BQp/4bRrq/kbP4P/1b1N2N1/3K3b w - - 0 2 legal: proof: b4 f5 e4 d5 g4 fxg4 d4 dxe4 a4 a5 Ra3 axb4 Rd3 exd3 f4 Kd7 a5 Kc6 f5 Kb5 a6 Ka4 d5 g5 f6 b5 h3 e5 a7 h5 d6 d2+ Ke2 e4 d7 g3 f7 g2 Bb2 b3 Be5 g4 Bh2 g3 Nf3 g1B Na3 b2 Nb1 g2 Nc3+ Ka3 Ne5 b1Q Qe1 d1B+ Kd2 b4 Qh4 b3 Qg5 e3+ Ke1 b2 Nd5 e2 Bg3 Bb6 Bf4 g1B Nf3 Qe8 d8N Bb7 Nc6 Nd7 Ne3 Ngf6 Ng2 Bgd4 Nd2 Nc5 Ne7 Rb8 Ng8 Bd6 a8B Bf3 Bc6 Rb7 Be4 Rh7 Bf5 Rg7 Bg3 Rg6 Bh4 Bc3 Qh6 Rg4 Qg5 Bce5 Rg1 Be4 Ne3 Bh1 Ng2 Qc1 Bc8 b1B Bf5 Bb2 c3 Qb5 Bc8 Nfd7 Qf5 Bbc2 Bd8 Nf6 Qg5 Qb1 Nf4 Qa1 Rg3 Bb1 Rf3 Bb3 Ng2 B1c2+ Kf2 Bb1 Rf4 e1Q+ Kf3 B1c2 Bd3 Qee8 Bdf5 Be4+ Ke3 Qd1 Kf2 Qf3+ Ke1 Qg3+ Rf2 Be6 Kd1 Qh4 Rf4 Bb3+
2b2k1N/nr3Bp1/p2n4/PQPK1P1b/2r5/rN3r2/R4qRq/RbN1b2r w - - 0 1 legal: proof: e4 c5 b4 cxb4 g4 h5 e5 hxg4 e6 f5 Ba3 f4 Bb2 dxe6 Bf6 e5 Bh4 e4 Bg3 fxg3 Ke2 e5 Ke3 b5 a4 g2 h4 b3 c4 g3 d4 b2 f4 b4 h5 b3 h6 Qb6 h7 Bb4 Qd2 Nc6 Qc1 Nf6 Nh3 g1R Bd3 g2 Qd2 Kf8 Rh2 Rf1 Nf2 g1Q Bc2 Ne8 Qc1 Nd6 Qd1 Be1 Rg2 Qh2 Nd2 b1B Nh3 b2 Nb3 a6 a5 Ra7 Qc1 Rb7 Ng1 Na7 Ne2 Ba2 f5 b1B Qd2 Rg8 Nec1 Rf3+ Ke2 e3 Kd3 Rh8 d5 e4+ Kc3 Rg8 h8N e2+ Bd3 Qf2 c5 e3 Kd4 Rb4+ Bc4 Rb7 Nf7 Rh8 Qb4 Rhh3 Nh8 Rhg3 Nd2 Bb3 Qb5 Bd1 Ndb3 Bb4 Qa4 e1R Qb5 e2+ Ke5 Rh1 Ra2 Ne8 d6 e1R+ Kd5 Re4 d7 Be1 d8R Be2 Rd7 Nd6 Ra1 Rh4 Re7 Bd1 Re2 Rhf4 Rea2 Be2 Nd2 Ra3 Ndb3 Rgf3 Ke5 Bd1 Bf7 Rc4+ Kd5 Rff4 Rg6 Bh5 Rg2 Rf3
2rq2R1/1B1Q1np1/4n1p1/B1b2BrP/2r1b1P1/3rR3/1KPb3b/NbR2q1k w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 Nd2 fxe4 Nc4 a5 Ne5 axb4 Ng6 hxg6 Kd2 Kf7 h4 Ke6 f4 Kd5 a4 b5 g4 e5 h5 e3+ Kd3 b3 a5 b4 f5 e2 a6 e1B a7 e4+ Ke2 d3+ Ke3 b2 f6 b1Q f7 b3 Qf3 d2 Qf6 d1R Nf3 b2 Nd2 Na6 Ra4 Nc5 Nb3 Bg3 Na5 Rd3+ Ke2 e3 Bh3 Ne6 Rf4 Nh6 Nb7 Bc5 f8R Bh2 Bd2 Nf7 Nd6 Bb7 Ra4 Rc8 Nc4 Ke4 a8B d5 Bf1 d4 Na5 Qc1 Ra1 b1B Qe7 Kf4 Be1 Be4 Ra3 Rc7 Bd2 Kg3 Nb3 Rc8 Bg2 Qg1 Bf3 Qf2+ Kd1 e2+ Kc1 e1B Rg8 Qf1 Bb4 Bd2+ Kb2 Kf2 Be2 Kg2 Ba5 Rc6 Na1 Rc8 Re8 Rf8 Qa7 Rc3 Bc6 d3 Qd7 Rc4 Bd5 Bdf4 Rc3 d2 Bd3 d1R Bb7 Bd2 Rb3 Nfg5 Ra3 Rf5 Rg8 Nf7 Rc3 Rg5 Ra3 Bf3 Bf5 Be4 Rb3 Qf2 Re1 Qf1 Rbe3 Kh1 R1e2 Bdb4 Re1 Rd3 Rc1 Bd2
q7/4b1nN/p1Pr4/NP3pb1/3r1k2/RqRQqPb1/R1B2n2/1N2qqKb w - - 0 1 illegal: No possible last move, all moves rejected
kN4R1/2pnNr1r/r2Qqr2/1Pqn2P1/4bp2/b1P2b2/N1KR1Rr1/4Bb2 w - - 0 1 illegal: No possible last move, all moves rejected
1NN5/2qp2qb/2qNR1Q1/1n1P1nP1/5R1b/R2r2qp/2KP2n1/2Br1bnk w - - 0 1 illegal: Other
1qrR1rq1/pk2n1b1/1NbRK2P/3p2BQ/2B1P1R1/1Br1n1n1/3P4/3n2qr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 b5 c5 Nc3 e5 Na2 exf4 Nb4 cxb4 Kf2 g5 e4 d5 h4 Kd7 c4 Kc7 b6+ Kb7 c5 f5 h5 f3 Ke3 f2 Kd4 a3 Ke5 f4 h6 f3 Qa4 g3 Bc4 f1N Nh3 g2 Qc2 g1Q Qa4 b3 Bb2 g4 Bc1 b2 Qd1 b1N Qa4 g3 Nf2 a2 Bb3 g2 Rh4 Nc3 Ng4 f2 Ba3 Bg7+ Nf6 Ne7 Rg4 Ne3 Qe8 f1R Qh5 Nd7+ Ke6 Rf3 Rc1 a1R c6+ Kb8 b7 Ncd1 Bb4 Rf8 Rc3 Kc7 b8R Bb7 Rc2 Qe8 Rd8 Rc8 Bc3 Kb6 c7 Bc6 Ra2 Rb1 Ra6+ Kb7 Be5 Qh2 Bf4 g1Q Bg5 Rh3 Rh4 Rc1 Rf4 Rc3 Rg4 Ne5 Nd7 N3f5 Nb6 Nc4 Ba4 Nce3 Bc2 Ra8 Bb3 Ng3 c8B+ Kb8 Bd7+ Kb7 Bc4 Rc8 Bb3 Qhg2 Bc4 Rh1 Bb3 Ba4 Bb5 Q2h2 B5c4 Bc6 Rh4 Ne2 Rg4 Qb8 Ra5 Ng3 Rc5 Ba4 Rc6 Bb5 Rcd6 Bc6 Bh4 Qg6+ Bf6 Qh7 Bg5 Qg8+
K2k2q1/nr1N2r1/5qpr/Pb2rB1Q/q4p1b/n2RB1q1/1PRR2PB/2b5 w - - 0 1 illegal: No proof kernel
3Nn3/1B1r3K/2pR1Rq1/k4rRQ/b1bB1PpB/1P5n/1qP1n3/b1b1n1r1 w - - 0 1 illegal: No possible last move
1Rr3RK/2rn2N1/nqr2r2/2QRrNk1/3P1ppb/PN2BbPb/6r1/3b4 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 h4 Ba3 h3 Bg2 hxg2 Bc1 axb6 Nc3 b5 Nb1 b4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 d4 g5 h4 b5 e3 b3 a3 b4 h5 b2 h6 b3 h7 f3 Rh5 c3 Nh3 g1R Rh4 f2 Qe1 f1R Qd1 c2 Nd2 b1B Bb2 c1R+ Qc2 c4 Nf3 c3 Nd2 Be7 Nf2 Bh3 Rh5 g4 Rb5 Rg2 Rd5 Na6 Nd1 Rc8 Ra2 Kg6 Ke5+ f5 e4 Bh4 Ne3 Nf6 Ra1 f4 Nf5 Rf8 h8R Rfe1 Rg8+ Kh5 Ke6 Nd7 e5 Qc7 Ra2 Rf6+ Ke7 Qc6 e6 Qb6 Ra1 Ba2 Rb1 Rc6 Ke8 Re5 e7 Rc7 Ng7+ Kg5 Nf5+ Rg6 Kf7 Rc6 Re8 Rgf6+ Kg7 Rc8 Rg8 Rc7 Qe4 c2 e8N Rc8 Bc3 b2 Nb3 Rc7 Bd2 Rc8 Na1 Bb3 Be3 Ba4 Nb3 Rc7 Ra1 b1B Qd3 Ba2 Rb1 Rc8 Qc4 Bc6 Rd6 Bf3 Qc5 Rc7 Rd5 Rcc6 Na5 Bc4 Rb5 Bce2 Nb3 Bd1 Rb4 Rb1 Rb5 c1R Rb4 Rc4 Rb5 Rbc1 Kh8+ Rg6 Neg7 Rgf6 Qb4 Rc8 Qd6 R4c7 Qc5 Qc6 Rb8 Qb6 Qb4 R1c6 Qc3 Bfe2 Qc5 Bf3
b2rb3/n1nbB1pK/r2Rn3/1B2N3/Q2PP1r1/1pB3Pq/n2r3k/R1bR4 w - - 0 1 illegal: No proof kernel
2b1rNK1/2Pp1qN1/1p1Pbr2/r1nrBB2/5Pn1/1B2Q1r1/pR6/knb2N2 w - - 0 1 illegal: No possible last move, all moves rejected
1R2r3/N2RpBB1/pn6/P2b1rbn/nKR1Qqb1/3rP1pP/4b2b/4Bk2 w - - 0 2 legal: proof: d4 h5 c4 f5 g4 fxg4 c5 h4 c6 bxc6 d5 cxd5 Nc3 d4 Ne4 d3 Ng3 hxg3 Kd2 Kf7 Kc3 Kg6 f4 Kf5 a4 Ke4 b4 d5 f5 c5 a5 g5 h3 d4+ Kc4 d2 b5 Ke3 f6 Kf2 b6 d3 e3 a6 f7 g2 b7 g3 Qg4 d1B Rb1 d2 Ne2 g1N Qd4 g2 Qc3 g4 Nd4 g3 Qa1 Nf6 Nc2 Nbd7 b8R Be2+ Kb3 d1B Qc3 c4+ Ka3 Nb6 Rh2 Qd4 Kb4 Be6 Bb2 Qf4 Ba1 Nh5 Ne1 Bd5 Qd4 c3 Qc4 c2 Nf3 c1R Nd4 Rc3 Nb5 Rd3 Na7 Bh6 f8B Bg5 Bfg7 Rf8 Bac3 Rf5 Rc1 Bg4 Qd4 Ne2 Qe4 Kg1 Be1 Nc3 Be2 Nca4 Bf3 Kf1 Rc4 g1B Rd2 Bh2 Bh1 Bge2 Bf3 Nf6 Bh5 Bg4 Bf7 Bde2 Rb7 Re8 Rb8 Nh5 Rd1 Rc3 Rd3 Ba8 Rd6 Bd5 Rd7 Rd3
Q1BR2b1/1N4qk/1b1RRq1q/q2nn3/KPp4q/BBP1bp2/1rP2p2/r7 w - - 0 1 illegal: Other
6qQ/pN1P1b1q/Pprb4/1P1b1BR1/kN3qbb/3r2p1/1nN2B2/n3B2K w - - 1 2 legal: proof: b4 h5 g4 hxg4 f4 e5 c4 exf4 a4 d5 Ra3 dxc4 Rb3 cxb3 Kf2 Kd7 Kg2 Kc6 h4 f5 e4 g5 d4 b2 e5 f3+ Kh2 g3+ Kh3 f2 Kg2 g4 h5 f4 h6 b6 a5 Na6 h7 Bd6 e6 Nc5 a6 Nb3 e7 Nf6 e8N Nh5 Nd2 b1Q Rh3 f3+ Kh1 Nf4 Ba3 g2+ Kh2 Na1 Rh5 Nd3+ Re5 Nb2 Be2 f1B Qe1 f2 Nf6 Qg8 Ngf3 g1B+ Kh1 g3 Rh5 Bg4 Bd3 Rd8 Bf5 Kb5 d5 c5 Qe5 c4 Nd4+ Ka4 b5 c3 Nc4 c2 Bb4 c1Q Be1 Qf4 Na5 Bc4 Nb7 f1B Nc2 Bgc5 Rg5 Bb3 Qc3 Bfc4 Qd4 Be7 d6 Bb4 Qc3 Bf7 Nd5 Bc5 Ndb4 Bbd5+ Qf3 Rc8 d7 Bcd6 Qg2 Rc3 Qe4 Rf3 Qd4 Bf6 Rh5 Bh4 Rg5 Qb8 Qg7 Rc8 h8B Rc6 Qf8 Qc8 Bd4 Qb8 Qh8 Qg8 Ne3 Qd3 Nec2 Qde4 Bdf2 Qd3 Be6 Qdh7 Bf5 Rd3+
1r2Qbq1/1bP4r/p1Rp1B2/P1q3p1/1R4N1/1NPR3n/k1Kbn1q1/2bb1N2 w - - 0 1 illegal: Other
b3N3/PN1nb1N1/2p1B1pB/R2Bp3/r1Qqq1P1/1K1qPn2/2n1r2n/4k1n1 w - - 1 2 illegal: No proof kernel
4Qq2/1R1Kb1k1/2pPn3/p1n1pBN1/1nP2B2/Pr1R1qR1/qBq5/1q2r2b w - - 0 2 legal: proof: e4 c5 h4 g5 b4 cxb4 Na3 gxh4 Nc4 f5 Na5 fxe4 Nc6 dxc6 Ke2 Kf7 Ke3 e5 d4 a5 g4 h5 f4 b5 c4 h3 d5 h2 d6 h4 f5 b3 f6 b4 g5 h3 a3 b2 Qd4 b1Q Qb6 b3 Bb2 Qa2 Qc5 Na6 Qa7+ Be7 Qd7 Nc5 Bd3 Nh6 Rf1 Rb8 Rb1 Qf8 Qg4 Nf5+ Ke2 e3 Kf3 Ng7 Qd7 e2 Kg4 e1N Bf5 Ned3 Nf3 Nb4 Rhd1 h1Q Rd3 h2 g6+ Kg8 Ng5 Nge6 f7+ Kg7 Qe8 Qc1 Qd8 h1Q Qe8 Kf6 g7 Qc2 g8R Rh3 Rd2 Re3 Rd3 Rb5 Rg7 Qd5 Rg1 Re1 Rgg3 Qf3+ Kh4 Qg8 f8B Rb8 Rh7 Qh8 Bh6 Qf8 Nf7 Rb5 Bf4 Bd7 Ng5 Bc8 Bc3 b2 Kh3 b1Q Bb2 Nc7 Kh4 Be6 Kh3 Bd5 Kh4 Qe3 Kg4 N7e6 Rg7 Bh1 Rh7 Bd8 Rb7 Be7 Qd8 Nc7 Bh7 Kg7 Qe8 Nbd5 Bg6 Rb3 Bh7 Qh8 Kf5 Qf3 Bg6 Nb4 Bh7 N7e6 Bg6 Nd8 Bh7 Nf7 Bg6 Qf8 Bh7 Ne4 Ke6 Nd8+ Kd7 Ne6 Bf5 N4c5+
6r1/B1prn1Rp/bp1qN2b/1qPk3q/2Rb4/2R1BP2/QKB2b1P/1b5n w - - 0 2 legal: proof: e4 f5 b4 d5 b5 dxe4 b6 axb6 Bb2 b5 Bc1 b4 g4 fxg4 d4 Qd7 Na3 Ra5 Nc4 Ra8 Ne5 Qd8 Nd3 exd3 Kd2 Kd7 c4 Kd6 a4 e5 d5 g5 a5 e4 a6 e3+ Ke1 e2 Kd2 e1B+ Ke3 g3 Kd4 g2 a7 g4 Be2 b3 Ra2 d2 Kc3 b2 Qb3 b1B Bd3 d1Q+ Rd2 g3 Nf3 g1B Nd4 g2 Ne6 Bh6 Kb2 Nd7 Rc2 Ne7 Qa2 Qh5 f3 Bd4+ Rc3 g1Q Be3 Qgg5 Rg1 Ne5 Bc2 Bf2 Rg2 Rb8 a8R Rg8 Ra4 Ng4 Rg3 Ke5 d6 Qf8 d7 Qff6 Nf8 Qd6 d8B Ra8 Rg2 Ra5 Ne6 Rd5 Rg3 Qf5 Nf4 Qfd7 Ne6 Qb5+ Rb4 Qda6 Rg1 Rd7 Rg2 Qd6 Rg1 Nc6 Bdg5 Ne7 Rg2 Be1 Bg1 Nf2 Be3 Nh1 Rg3 Bf2 Rg7 Qdd5 Be4 Kd6 Bc2 Kc6 Nf4 Qd6 Ne6 Bf6 Ba7 b6 c5 Be5 Bb8 Bed4 Ba7 Qe2 Ra4 Ba6 Rc4 Kd5 Rg3 Be1 Be3 Bf2 Rg7 Qd1 Bg6 Qa4 Bc2 Qb5+
2n1RBR1/K1bppB2/P4qNB/3Rn3/nq1rpr2/P1q4n/Q2P4/1bk4n w - - 0 1 illegal: Other
4K2Q/r2Rqn1n/6N1/3BPN2/nB2B1P1/bpp1r1q1/2P1Nbp1/1n1bkr2 w - - 0 1 illegal: No proof kernel
4R2r/prB1b1b1/N5b1/P1NP2nB/Kr1q1Pr1/3q4/N1p1p1k1/1qQ3Bn w - - 0 1 illegal: No possible last move, all moves rejected
1N1B1Kn1/Pb2Qqp1/2b2nBb/1n2nP2/R2r2P1/q2qp3/2rp4/1k2NBN1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 h4 b6 axb6 Ra3 b5 Rb3 b4 Rg3 hxg3 Ke2 Kf7 h4 Kf6 f4 e5 c4 b5 h5 d5 c5 d3+ Ke3 d4+ Kd2 b3 a5 b4 c6 g2 h6 b2 a6 e3+ Ke1 e2 Kd2 e1N h7 e4 f5 Ke5 a7 b3 c7 Qe7 Rh2 Nd7 Qe2 e3+ Kd1 Ke4 Qf2 d2 Ke2 d1N Rh1 Bb7 c8B Ndf6 Bd7 Qf7 Qh4 Be7 Bc8 Nd3 Be6 Rd8 Bd2 Ne5 Na3 b1Q Ba5 b2 Nc2 Rd5 Bd8 d3+ Ke1 d2+ Ke2 Bc6 Ne1 Rd4 Bd7 Qc1 Be8 b1B Qg5 Qa3 Rh6 Qfb3 Bg6 Qf7 Rh1 Ba2 Rh6 Bad5 Rh1 Nh6 Qh4 Re8 h8N Nhg8 Qg5 Bb7 Rh6 Bdc6 Qh4 Nd5 Qf6 Bd6 Qe7 Ndf6 Rh1 Kd5 Rh6 Kc4 Rh1 Kc3 Rh6 Qd5 Nf7 Kb2 Rh1 Kb1 Rh6 Nd3 Ne5 Qf7 Nd7 Bf4 Rh1 Bh6 Nb8 Re4 Kf3 Nc3 Kg3 Rd4 Kh3 Ne5 Kh4 Nh7 Kh5 Nb5 Rh3 Qd3 Rf3 Qa3 Rf4 Rf8 Ne2 g1Q Re4 Qg2 Ng1 Qe2 Rf4 Qed3 Re4 Rd7 Ra4 Nhf6+ Kh4 Ne4 Kh5 Qf6 Bh7 Rd4 Bb6 Rc8 Bd8 Qf8 Qf6 Bd7 Qe7 Nf3 Kg6 Rc2 Qd6 Bdc6 Qf6 Qfb4 Qe7 Nef6 Kf7 Qbc4+ Kf8 Ne5 Bg6 Qf7+
4rR2/2B5/1p2p2n/rr2q2n/1QPBnp2/1PrRRK1P/1b2bn2/n2NkB2 w - - 0 1 illegal: No possible last move
N1r1R3/1K4N1/5b2/qBR1Q1q1/b2bP3/R1bqp3/pprqPknP/5Nn1 w - - 0 1 illegal: Other
r3RbBQ/1q4R1/p2P1r2/1P1pR1q1/1Nb1rp2/n4b1r/2N2P2/Nk2nb1K w - - 0 1 illegal: No possible last move
Q2RN2K/qp1n1q2/1p1r2N1/RP3k2/rpp2q2/n3rR1P/P5bb/N3B1n1 w - - 0 1 illegal: No proof kernel
qn2rn1k/2N1p3/3q1P2/pKr1bn2/1p1Qp3/3B1qr1/PPNB4/R2b1N1B w - - 1 2 legal: proof: e4 f5 h4 fxe4 d4 c5 Bd2 g5 Bb4 gxh4 Nd2 Qb6 Ba3 Qc7 Rc1 Qd8 Nb3 cxd4 c4 Kf7 Rc2 Ke8 Rc3 dxc3 Ke2 Kf7 g4 Kg7 f4 h5 c5 b5 g5 d5 f5 a5 g6 c2 c6 c1R c7 h3 Qd2 d4 Qe1 h4 Qd2 h2 Qd1 h3 Kd2 d3 Nd4 Rc5 Bb4 Nf6 Nge2 Nh7 Bg2 Rg8 Ng3 Kh8 Nc2 Bg7 Nf1 Be5 f6 Bg4 c8N Nf8 Nb6 Bh5 Ke3 d2 Nd5 Rg7 Rg1 h1N Nc7 Ng3 Bh1 h2 Bc3 Bd6 Kd4 b4 Qe2 d1Q+ Qd3 Qf3 Bd2 Qf4 Qc3 Bd1 Qd3 Rc4+ Kd5 Nf5 Qe3 Rc3 Qd4 Rg3 Kc4 Be5 Kb5 Qf3 Kc5 Qd6+ Kc4 Rh7 Kb5 Rh5 g7+ Kh7 g8B+ Kh8 Bg2 h1Q Bc4 Qh4 Bh1 Qg5 Bd5 Qg8 Bb7 Nbd7 Bd5 Re8 Bc4 Nb8 Bd3 Qgd5+ Qc5 Qa8 Qd4 Be2 Nh2 Rhg5 Ra1 Bd1 Nf1 Bf4 Qf2 Ng7+ Ka4 Rc5 Qe3 Be5 Qd4 Rc3 Kb5 Nf5 Qc5 Rc4 Qd4 Rc5+
3NN2q/r3nB2/br3R2/2Kp2p1/3rPpNR/1k3P1p/1n1PqQ1r/R2r2b1 w - - 0 2 illegal: No proof kernel
2B1q1nq/2K3Bk/5p2/1Nn1RpRP/r1n2P2/b4Q2/Bppq1Pb1/rn3R2 w - - 0 1 illegal: Other
q2r3K/n2N2p1/5rr1/p2rP1R1/bbPp1N1k/R2Q1n1N/p2P1qn1/6RB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 b5 e6 Ba3 exf5 Bb4 cxb4 Ra2 f4 Ra3 Rh4 Ra1 Rh8 Kf2 Ke7 h4 Kf6 c4 d5 e4 a5 h5 Kg5 h6 f5 h7 f3 Kg3 f2 e5 b3 b6 d4 b7 f4+ Kg2 g3 Kf3 b2 Ke4 g2 Nc3 b1R Nb5 a3 Rh4 f3 Nd6 a2 Qb3 Ne7 Ne8 Nbc6 b8R Nf5 Nc7 Na7 Na6 Ne3 Nc5 Bd7 Qd3 Ba4 Nd7 Rb5 Rh5+ Kg4 Be2 f1Q Nh3 g1N Rg5+ Kh4 Rc1 f2 Bf3 Rg8 h8N Rd5 Rb3 Ng2 Kf5 Qc8 Be4 Nf3 Kg6 Qe2 Kh7 f1R Ra3 Qf2 Rd1 Qb7 Rc1 Rg1 Rb1 Rd8 Rd1 Qa8 Rc1 Nf4 Ra1 Rg4 Rg1 Ng2 Ng6+ Kg3 Ngf4 Kh4 Kg6 Rh8 Kf7 Rh6 Kg8 Rf6 Kh8 Nh2 Rf5 Rgg6 Bf3 Ne3 Bh1 Nf3 Rfg5 Ng2 Qe2 Bb3 Qe3 Ba4 Qd3 Bb4+
b4B2/r1Nq1qpB/2np1p1n/1bpb2RP/4r3/KRP4B/R2qk1PQ/b7 w - - 1 2 legal: proof: d4 e5 b4 exd4 f4 a5 Nc3 axb4 Ne4 h6 Ng5 hxg5 Rb1 gxf4 Ra1 f3 Kd2 Ke7 h4 Ke6 a4 Ke5 e4 Kf4 c3 b5 a5 d3 e5 f6 h5 b3 a6 b4 e6 f2 a7 b2 e7 b1Q e8B b3 Bg6 b2 Rh2 Ba3 Be8 c5 Rh3 Qa2 Rb1 Bb7 Rg3 Qf7 Rg5 Nh6 Nf3 Bd5 Nd4 Nc6 Nb5 Qc7 Be2 f1B Bg4 Kg3 Qb3 Kf2 Bh3 Qf4+ Kd1 d2 Kc2 Ke2 Nc7 Rg8 Qb8 Rf8 Ra1 d1Q+ Kb1 Qg4 Ra2 Qdd4 Bf4 Qd2 Bd6 Rg8 Bf8 d6 Qb4 Qgd7 Qd4 Qfe7 Bg6 Qf7 Qb4 Re8 a8R Re4 Bh7 Rh8 Be7 Rd8 Ra5 Ra8 Bf8 Ra7 Qa4 Kf2 Qd1 Bb5 Qg1+ Ke2 Ra4 Qd4 Rc4 Qf2 Kc2 b1B+ Kb3+ Bb2 Qh2 Qe1 Be7 Qd2 Bf8 Ba6 Ka4 Ba1 Ka3 Bd3 Rb4 Bdb5 Rb3 Bb7+ Na6 Na5 Nc7 B7c6 Qe5 Ba8 Qh2 Nc6+
4N3/k2nn1Kb/3Bp1p1/pbN4r/B2Nrp2/1B1QP3/2RPqr1P/2br3q w - - 0 1 legal: proof: b4 d5 f4 b5 a4 bxa4 c4 dxc4 g4 Bd7 f5 Be6 g5 Bc8 Ra3 g6 Rg3 gxf5 g6 f4 g7 Qd6 Rg5 Qd8 Rg6 hxg6 Kf2 Kd7 Kf3 Kc6 Ke4 Kb6 Ke5 f5 b5 a5 e3 c5 Bd3 a3 Qg4 a2 Be2 a1Q+ Bb2 f3 Qh5 f4 Bd4 f2 Bd3 f1B Qh4 c3 Qh5 c2 Qf5 c1R Be4 Rh5 Nf3 Be6 Nc3 Rd1 Bc2 Ka7 Na4 Ba2 Bc3 c4 Nc5 Qd3 Nd4 Qe2 Bb4 c3 Ba4 c2 Ba3 c1R Rg1 Nf6 g8B Nd5 Rg5 Qb1 Qd3 Nd7+ Ke6 Bg7 Kf7 Re8 Rf5 Be5 Rf6 Bc4 Rc6 Bd6 Kg7 Bb3 Qc4 Qe4 Qd3 Qh1 Nce6 Bb4 Nc5 Bc3 Be6 Bb2 Bf7 Ra1 Bb4 Bc1 b6+ Ka8 b7+ Ka7 b8N Bc4 Ne4 Bb5 Bg8 Bh3 Rc2 Be6 Nd6 Rf1 Na6 Rf2 Bh7 Bg8 Ba3 Bb2 Nc5 Rd1 Bb4 Bc1 Ba3 Rc8 Ne8 Rc6 Nb7 Re6 Bd6 Re4 Nc5 Nb4 Rc4 Nc6 Rc3 Bd5 Bg8 Bdc4 Be6 Bb3 Bg4 Bg8 Be6 Bh7 Beb3 e6 Rc2 Ne7
2R1qr1n/2Kp1NP1/bnpp4/2kP1qQ1/1qN2N2/2P2Bnq/4p1R1/2bR1r2 w - - 1 2 legal: proof: e4 f5 h4 fxe4 b4 g5 b5 gxh4 b6 axb6 Bb2 b5 Be5 b4 Bd6 exd6 Ke2 Ke7 Ke3 b5 Kd4 h5 Kd5 e3 a4 b3 g4 h3 f4 h2 d4 h4 a5 b2 f5 h3 c3 b4 g5 c6+ Kc4 b3 f6+ Ke6 f7 e2 a6 Ne7 a7 Qe8 g6 Ba6+ Kb4 Kd5 Ka5 Bh6 Kb6 Rf8 g7 Ng6 Qd2 Nh8 Na3 b1Q Nf3 b2 Ne5 Qf5 Nac4 b1Q+ Kc7 Qb4 Rg1 h1N Rg2 h2 Qg5 Ng3 Rc1 h1Q Rd1 Rg8 f8N Qhh3 Nfg6 Rf8 Qg4 Bc1 Qg5 Bb5 Nf7 Na6+ Kb6 Rc8 a8R Nc7 Rb8 Rd8 Rc8 Na8+ Kb7 Nb6 Kc7 Ba6 Nf4+ Ke4 Nh6 Rf6 Nf7 Qe7 Ne6 Rf8 d5 Qe8 Nd2+ Kd3 Nc4+ Kc2 Nf4 Kb3 Rg1 Ka4 Bg2 Kb5 Bf3 Kc5 Rg2 Re6 Bh5 Re3 Bg4 Rf3 Bh5 Rf2 Bf3 Rf1
qb1nqq2/ppPRrp2/1b4n1/k1B1N2r/PN1B4/1q4N1/Pp2Q3/KB1b4 w - - 0 1 illegal: Other
2RKr2k/2P1Nb1b/2r3pb/2Pp1Qq1/6Rp/nbN2nq1/p1R3Pq/4B1N1 w - - 0 1 illegal: Other
bN3R2/p1N1NR2/P3rp2/1nPr3n/3prq2/Bnp2QbK/p1R2P2/4k1b1 w - - 1 2 illegal: No proof kernel
1R3B2/4B1p1/Qrn5/NBP3pb/b1P4b/2pp1qqK/2qrp1PR/1kn2R2 w - - 0 1 illegal: Other
3bN1k1/p2nR3/1p1n1RNb/1PrpK3/3p4/pRB3Q1/PP3q1N/r2b1rr1 w - - 0 2 illegal: Other
2Q4R/2B1p1pB/pR1NP3/Pn1B3b/6b1/2PpnRpr/2nn1b2/1q1kr2K w - - 1 2 illegal: Other
1rnQ1K2/2pB1n1r/3q2Bp/1nPP1Np1/3n1p2/Nb2pPb1/R1B1r1Nk/8 w - - 1 2 legal: proof: e4 d5 h4 dxe4 g4 a5 a4 h6 b4 axb4 g5 Nc6 h5 Be6 Bb2 Nb8 Bf6 Ra7 g6 Ra8 Bg5 Bc8 Bh4 Qd5 Bg5 hxg5 h6 Qb5 Ra3 Qf5 h7 Qd7 Rah3 Qd8 Rh6 gxh6 Ke2 Kd7 Ke3 Ke6 d4 Kf5 c4 e5 a5 b5 a6 b3 f3 b2 a7 b4 c5 b3 g7 Be6 Qe2 Nc6 Qb5 Nge7 g8B Rb8 a8B Qd6 Qb6 Nd8 Ba6 Nc8 Na3 b1N Bc6 b2 Rh2 Nd2 Bd3 b1N Nh3 Bb3 d5 Nc3 Bc2 Nb5 Nf4 f6 Qa6 Nf7 Ng2 Bg7 Qa8 Bf8 Kf2 Bg7 Kg3 Bf8 Bd1 e3 Bc2+ e4+ Kh3 e2 Bd7+ Ke5 Kg4 e1R Kh5 e3 Kg6 Be7 Kg7 f5 Rh1 Re2 Ra1 Nd4 Ra2 Ne4 Bd3 Nc3 Bc2 Nd8 Bf7 Ncb5 Bg6 Nf7 Nh4 Kf4 Ng2+ Kg3 Qc6 Re8 h8N Kh2 Qa8 Nd8 Nf7 Rh8 Ne5 Nf7 Nec4 Rh7+ Kg8 Qa6 Nd6 Bf6 Kf8 Be5 Ke8 Bg3 Kf8 f4 Nf5 Qf6 Qc6 Rb6 Qd6 Rb8 Qe7 Qe5 Qd8 Qd6+
bB2b3/p1KBp3/3R1b2/2pPR3/1r2nrqp/QR2p2n/1bP1P1n1/2Bk1N2 w - - 1 2 legal: proof: g4 d5 a4 b5 h4 bxa4 g5 f6 Ra3 fxg5 Ra1 gxh4 Nc3 h3 Ne4 dxe4 b4 Kd7 d4 Kc6 Kd2 Kb5 Kc3 h5 f4 c5 f5 g5 f6 a3 f7 h2 Bd2 g4 Bg2 h4 Bc1 e3 Bb7 g3 Nh3 a2 Bf3 g2 Nf2 g1N Kb3 Bg7 f8R Qd7 Ba3 Na6 Ng4 Nc7 Qc1 Nd5 Rf5 Rb8 Re5 Ngf6 Rb1 Nh3 Rd1 h1B Nh2 a1B Nf1 Ndf4 Bg4 Ba8 Rd3 Ne4 d5 Qc6 Bd7 Bb2 Ra1 Rf8 Ra2 Ka6 Kc4 Ng2 b5+ Ka5 b6 Qg6 b7 Qg4 Rb3 Rf4 Ra1 Bh8 Rb1 Bf6 Rb6 Bd4 Rd6 Bc3 Rb3 Bb2 Ba4 Bf5 Bd7 Bg6 Qa1 Be8 Qc1 Rc8 b8B Rc6 Qd1 Rb6 Qd3 Bd4 Bc1 Bc3 Rb5+ Ka4 Rb2+ Ka3 Rb4+ Ka2 Rb3 Bb2 Qc3 Kb1 Qa5 Rc6 Kb5 Rc7 Qa3 Rb7+ Kc6 Rb4+ Kc7 Qg6 Bd2 Qg4 Bc3 Kc1 Bd2+ Kd1 Bc1 Qe6 Nh2 Qg8 Nf1 Qg4
2q2QB1/1R1nb3/3n2R1/PqP3rb/3Q3K/3n1q1n/R1P2N2/B1b1kq2 w - - 0 1 legal: proof: f4 g5 b4 b5 d4 e5 a4 exf4 h4 gxh4 Na3 c5 dxc5 f5 e4 a5 e5 axb4 Bxf4 bxa3 e6 Ra6 Bc1 Rd6 Qe2 Rd1+ Qxd1 f4 Kf2 Ke7 g4 Kf6 g5+ Ke5 a5 Ke4 g6 d5 e7 h5 e8Q+ Be7 g7 d4 Rb1 a2 Qg4 a1B Ne2 h3 Qed7 d3 Rb3 b4 Qh4 h2 Qg5 d2 Rh3 d1Q Rg1 h1N+ Kg2 f3+ Kh2 f2 Rg2 h4 Qa7 b3 Qg3 b2 Nd4 b1Q Qd7 Qb5 Ba3 Nh6 g8R Bb2 Bb4 Nf5 Bd2 Nd6 Bc1 Rh5 Qg7 Rg5 Ne6 Qf3 Bc4 f1Q Qf8 Nf2 Rg6 Nd3 Nf4 Qc7 Rd2 Ke3 Bg8 Qcc6 Rd1+ Kf2 Qg4 Ba3 Bb2 Nd7 Ba1 Bc1 Rg3 Qca6 Nh3+ Ke2 Nf2 h3 Rd2+ Ke1 Qd4 Bb7 Rg1 Be4 Rg4 Qc8 Rh4 Bf5 Rh7 Bg4 Rd1+ Ke2 Re1+ Kd2 Re4 Bh5 Rf4 Ke1 Rg4 Qfc6 Kg3 h2 Kh4 h1N Rf7 Qf3 Rfg7 Ng3 Re4+ Ne2 Re3 N3e5 Ra3 Nf4 Ra2 Ned3 Rh7 Nh3 Rhg7 Nb8 Rf7 Bf6 Rc7 Be7 Rb7 Nd7
2K1n2n/2Q2B2/1nB1q1n1/8/3rP1r1/1r1P1N2/NRr1qn1P/3kNQ1q w - - 0 1 legal: proof: c4 a5 f4 e5 a4 exf4 b4 b5 axb5 d5 b6 dxc4 b5 Ra7 b7 Nc6 Ra4 Ra8 Rb4 Nb8 g4 axb4 Ba3 Bc5 Bc1 Ba7 b6 f5 bxa7 f3 Bb2 h6 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kd7 e4 Kc6 d3 Kc5 f6 Kd4 f7 c5 f8Q g4 Bg2 g5 Qb3 g3+ Kf1 Ke3 Qf7 f2 Qc7 c3 Qa5 c2 Qd5 c1N Qa3 b3 Qa6 g4 Nd2 c4 Ne2 c3 Qac6 c2 Qf6 b2 Qfg5 b1R Ng1 Qe7 Ngf3 Rb3 Ne1 Qe6 Qgd8 Nd7 b8N Rh4 Qe7 Ne2 Qed6 c1R Na6 Rc2 Q5e5 Ngf6 Qa5 Rd8 Nb1 Ne8 Nc3 Kd2 Bf3 Kc1 Nd5 Kd1 Kg2 f1N a8B Nd2 Nb6 Nc4 Qc6 Nce5 Nc4 Nf7 Nb4 Nh8 Qc8 Rh7 Nd2 Rg7 Bc6 Rg6 Kf1 g2+ Kf2 g1N Qac7 g3+ Kg2 Rg8 Na2 Nh3 Bh5 Nf2 Kf3 g2 Bf7 g1Q Q8b8 Rg2 Qb5 Rg4 Qf5 Nc3 Qf6 Nd5 Qf5 Qf1 Rg1 Ne7 Rg2 Qh1 Qf6 Rg5 Qf5 Rg8 Qf6 Neg6 Qf5 Nh3 Kg4 f3 Re2 f2 Ndf3 f1Q Rg2 Rc4 Rb2 Nf2+ Kg5 Qe2 Qh3 Rd4 Qf1 Qc4 Kf5 Rc8 Qd6 Qa6 Ke6 Qb6 Bd5 Rc2 Bc6 Nf4+ Ke7 Rg4 Qc7 Nfg6+ Kd8 Qa6 Nh4 Qc4 Nhf3 Qe6 Kc8 Nb6+
1qb1r1Q1/b1k1rrN1/3R2rR/2P3RP/4nP2/2b4Q/3nrn1n/4B1BK w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 f5 exf5 b5 a4 c5 axb5 cxd4 b6 a4 b7 Rh6 b5 Rh7 Bh3 Rxh3 b6 Rh8 Nc3 Nh6 Ne4 Ng8 Nf6+ Kf7 Ne8 Kxe8 Kf1 d5 Kg2 Kd7 h4 g5 f4 e5 c4 d3 f6 d2 h5 g3 f7 e4 Ra3 d4 Re3 d3 Ba3 g4 Re2 e3 Qa1 d1N Bb2 d2 Re1 a3 Bg7 e2 Rf1 e1R Rh4 a2 Kh1 g2+ Kh2 g3+ Kh3 Rh7 Rg4 Re2 Bf6 Na6 b8Q Bc5 f8B Rhe7 b7 Nh6 Qc3 a1B Bd4 Ba7 Nf3 g1R Ng5 g2 Kh2 Nf2 Rd1 Nc5 Qh3 Nce4 Ne6 Bc3 Ng7 Rf7 c5 Rge1 Be7 g1N Rg5+ Nhg4+ Kg2 Nf3 Be3 Qg8 Bd8 Kc6 Ba5 Ngh2 Bd4 Bd7 Qd8 Bc8 b8R Qh8 Bb4 Qf8 Qe8+ Kc7 Rb6 Qh8 Rh6 Qg8 Ra1 d1R Raa6 Nfd2 Rad6 Ra1 Qee6 Ra6 Qg6 Qe8 Qh7 Qb5 Qg8 Qb8 Be3 Nf6 Bd4 Ree7 Be3 N6e4 Bd4 Re2 Be3 Nfg4+ Kh1 Rb6 Bg1 Rc6 Rd8 Rg6 Rd6 Ngf2+ Kg2 Nb1 Qh4 Qb6 Rg3 Bb7 Rd2 Bb2 Rg5 Rae8 Qh3 Bc8 Rd6 Qb8 Bd2 Bc3 Be1 Nd3+ Kh1 Nbd2 Qh8 Qb2 Qh7 Qb8 Qg8 Ndf2+
1N1Kb1b1/Bn1Q2rn/2Bb1BRP/1n5P/2P5/1Q4rb/2r1kq1r/Nr6 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 c5 a4 cxd4 Ra2 axb4 Ra3 b5 axb5 bxa3 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kg4 h4 f5 c4 g5 e4+ f3 e5 a2 e6 a1R b6 d3 e7 f4 Kd6 d2 b7 R1a2 Qc2 d1B Rh2 f2 Bb2 f3 Qe2 Qb6+ Kd5 Na6 e8Q Ba4 b8B Ra7 Qd8 Nc5 Bc7 Bd6 Qe3 Nf6+ Kd4 Nh7 Kd5 Nb7 Be5 Rc2 Bg2 f1B Nc3 f2 Be4 Bh3 Qe8 f1R Na2 Rb1 Qb3 Qf2 Bf6 Kf4 Rg2 g4 Ba5 g3 Ne2+ Kg4 Rg1 g2 Nec1 Kf4 Bac3 Ke3 Nb4 Bb5 Nc6 Ra3 Rh1 g1R Nb8 Rg7 Bcd4+ Kd2 Rg1 Ba4 Qb5 Rag3 Nb3+ Ke2 Qb4 Bb5 Ba7 Ba4 Na1 Bb5 Bh1+ Be6+ Ke4 Bg8 Qb3 Be7 Ke5 d5 Rg2 d4 Rg1 Rgc3 Rg6 d3 Be4 Bbd7 Bc6 d2 Qd8 Be8 Qd4 Bf5 Qd7 Rf7 Kd5 d1N Ke5 Rh3 h6 Rh2 h5 Nc3 Qd8 Bh3 Rg1 Nb5 Qd7 Bf8 Be4 Bd6+ Kd5 Re7+ Kc6 Bgf7 Bd5 Re3 Rg6 Rg8 Kb6 Rg7 Bc6 Be7 Bh1 Bg8 Bc6 Nc3 Kc7 Rg3 Kc8 Bf8 Kc7 Nb5+ Kc8 Nc5 Kd8 Be7+ Kc8 Bd6 Kd8 Nb7+
Q3r2b/4K3/P2r2NP/2n1Pqr1/3r2Rr/Q3b1Bb/1q1Q1rR1/2Br3k w - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 b4 a5 a3 axb4 e3 Bf5 Bc4 Bc8 Ba2 b3 g4 bxa2 Nf3 h5 Ng1 f5 Nc3 f3 Ne4 f4 Nf2 Nc6 Ne4 Nce7 Nf2 Nf5 gxf5 Ra7 Ng4 hxg4 Bb2 Ra6 Bc1 Ra8 Kf2 Kd7 h4 Kd6 d4 b5 e4 g5 h5 c5 f6 g3+ Ke1 f2+ Kd2 f1Q Kc3 f3 a4 b4+ Kb3 c4+ Kb2 c3+ Kb3 g4 f7 c2 a5 f2 a6 g2 Ba3 c1R Qf3 g3 Qd1 Qb6 Qf3 Rc6 Qe3 Bh3 Rh2 Re8 Bc1 Bg7 Ne2 g1B Qc3 g2 Qc2 Nf6 Nf4 Nd7 Ng6 Qfb5 Qd2 f1R Rb1 a1R h6 Be3 Rb2 g1R Rg2 Rf2 Rg4 Ra4 Rc2 Rh1 Ra2 Rhg8 f8Q+ Re7 Qa8 Ree8 Qb2 Be5 Qa3 Bh8 Rd2 Q5a5 Rc2 Nc5+ Kc4 Rf3 Rcg2 Rf2 Ne5 Rg5 Ng6 Kd7 d6 Ke6 d7 Rd6 d8B b3+ Qb4 b2 Bc7 b1R d5+ Kf6 Bb8 Rd1 Bc7 Rb3 Bb8 Rbd3 Bc7 Rdd8 d6 Ke6 d7 Rd4+ Kc3 Qab5 Bg3 Qf1 e5 Kf5 Qa3 Qb7 Bf4 Ke4 Bh2+ Kf3 Bg3 Rc8 d8Q Rc6 Qb6 Rcd6 Qbb2 Qb5 Qd2 Qe4 Qd8 Qf5 Qc8 R4d5 Qa8 Re4 Qd4 Qb1 Kc4 Qa2+ Kb5 Qd2 Qdc3 Rdd4 Qca5 Qb2+ Q5b4 R6d5 Kc6 Rd6+ Kc7 Ke2 Qd2+ Kf1 Rh2 Kg1 Rg2+ Kh1 Rf4 Ree6 Kc8 Nd7 Kd8 Re7 Rf3 Reg4 Rf4 Rh4 Rg4 Ree6 Ne7 Nc5+ Ke8 Rf6 Ng6 Rf8+ Ke7 Re8+
2K5/P2p3B/Q4B1n/2B2nQ1/b1q1r1b1/2RPbq2/PNN1k1q1/r1r1n3 w - - 0 1 legal: proof: c4 a5 f4 f5 e4 g5 b4 b5 h4 gxh4 bxa5 e5 exf5 exf4 Na3 bxc4 Rb1 Bb4 Rb2 Bf8 Rb3 cxb3 Ke2 Ke7 Kd3 Kf6 Kd4 Kg5 Kd5 h5 g4 c5 d3 c4 f6 h3 f7 c3 a6 h2 a7 h4 Qe2 h3 Nc4 b2 Qf3 b1B Ne2 c2 Qg2 Qc7 Bd2 c1R Qf3 Bb7+ Kd4 Nh6 Qf2 Bf3 Ba5 Bc2 Qg1 Na6 Bb4 Ba4 Qg3 Re8 Bc3 Re4+ Kd5 Bc5 f8B Be3 Nb2 Qc4+ Kd6 Nb4 Bg2 Nc2 Nd4 Ne1 Nc2 Ra1 Rf1 h1Q Rf2 h2 Bf6+ Kg6 g5 Kh5 g6 Bg4 g7 f3 Rd2 f2 g8Q f1Q Qe6 Qf3 Ke7 Qhf1 Kd8 h1N Qa6 Rc1 Bh3 Q1g2 Rd1 Rh7 Bc5 Rhe7 Qf4 Ng3 Kc8 Ngf5 Qg3 Ra1 Rc1 Rg7 Qe5 Rg5 Qe7 Kh4 Qg7 Kg3 Qg6 Kf2 Qg7 Rh5 Qg5 Qgg3 Bg2 Rh1 Bh3 Ke2 Bg2 Bh5 Bh3 Qgg2 Bg4 Ng3 Bf5 Bg4 Bh7 Ngf5 Na3 Rg1 Rc3 Nc2 Rb3 Rgd1 Rc3 Ne1 Nc2 Rdc1
2R1rN1q/n2N4/nQ3n2/KQ4Pn/bB2P3/1R4pk/Pr2Q2q/n2r2b1 w - - 0 1 legal: proof: c4 a5 f4 c5 b4 axb4 f5 d5 f6 exf6 cxd5 f5 d4 cxd4 g4 g5 h4 Ra3 Bh3 Rf3 hxg5 Rd3 g6 Ra3 g5 Ra8 Bg4 fxg4 Kd2 Ke7 g7 f5 e3 b5 d6+ Ke6 d7 h5 Kd3 f4 Nd2 Kf5 Kc2 d3+ Kb3 h4 Qc2 f3 Qd1 f2 Ne4 f1N Qe1 d2 Nf2 d1R Qd2 h3 Qe1 h2 Nd3 Bc5 Rb1 Na6 Qh4 Nf6 g8Q Rb8 Ne2 Ng3 Ba3 Ngh5 Nb2 g3 Qgc4 Re8 Rg1 h1Q Nd3 Qh2 Kb2 b3 Kc3 b2 Kb3 b4 Ka4 b3 Ne5 Rb6 Rc1 b1N Qb5 b2 Qhc4 Nd2 Nf4 b1N Ne6 Nb3 Nf8 Na1 Ka5 Nc3 e4+ Kf4 Rg2 Bg1 Qe2 Bb7 Bd6 Bc6 Bb4 Qb8 d8Q Bd7 Qa4 Nb5 Rc8 Na7 Qab5 Bc6 Ned7 Qe5 Qf1+ Kg4 Qe2+ Kh3 Rf2 Rb8 Rf3 Qd4 Rb3 Qe5 Qd5 Ba4 Qdb5 Bd4 Rd3 Rf1 Qd5 Ng8 Bd6 Rb2 Qb6 Rd1 Rb3 Qh8 Qdb5 Bg1 Bb4 Ngf6
nb2q3/Q2r1R1r/1n1N2P1/2nBkp2/PK4b1/4r2q/NrNb2P1/Q1R5 w - - 0 1 illegal: No possible last move
Qr3B2/b2nq3/P2n2Q1/rqP5/n6R/1Bpn4/1rNK1PRR/1rb2k2 w - - 0 1 illegal: No possible last move
Q7/1qr1Q2N/2N1qBQp/2PPr3/K1rrP1n1/3kB3/nb4R1/4qn1q w - - 0 1 legal: proof: f4 a5 h4 g5 b3 gxh4 f5 a4 f6 b5 a3 b4 axb4 a3 b5 exf6 b6 f5 Rh3 f4 Rh2 Qf6 Rh1 Qd8 c4 c5 e3 d6 Ra2 Bd7 Rb2 Ba4 bxa4 d5 Rb4 cxb4 c5 Ra5 Be2 Ra8 Bc4 dxc4 g4 Ke7 d4 Ke6 Kd2 Kd5 Kc2 Ke4 b7 f5 a5 h6 g5 h3 d5 h2 g6 c3 Kb3 a2 a6 a1Q a7 c2 g7 f3 Bd2 c1R Nh3 f4 Qe1 f2 Rg1 h1Q Rf1 f3 Qd1 Qb6 Nf4 Nc6 b8B Nf6 g8Q Ng4 Re1 f1N Nh5 f2 Qe6+ Kd3 e4 Bg7 Re2 Bb2 Qe5 Rh7 Nc3 Rc7 Na2 Rc4 Ka4 Qc1 Qe7 b3+ Bb4+ Qd2 Nf6 Qb7 Qa1 Qe1 Nh7 Qc8 Qc1 Qe6 Qcg5 Rd4 Kb5 Rc4 Bc3 Nb4 Ka4 Rc6 Bc7 Re8 B7e5 Rc7 a8Q Nc6+ Bb4 Rd4 Qgf6 Qf5 Qfe6 Bc1 Qg6 b2 Qf8 b1Q Qd8 Nfh2 Bg7 Re5 Qa8 Qe6 Bf6 Qb3+ Kb5 Bb2 Qfd8 f1R Qd7 Qa1 Rg2 Rc1 Qdg7 Nf1 Qe7 Nd8 Ka5 Rcc4 Bd2 Qb7 Be3 Qe1+ Nb4+ Kc3 Ka4 Nc6 Qh8 Nb8 Ka5 Na6 Nc6 Nb4 Qa8 Kd3 Ka4 Na2+
b1QK2Q1/2r1P1Rb/b6P/1pnb3k/QN4b1/R7/Pqbr1rB1/B6r w - - 0 1 legal: proof: d4 a5 c4 c5 b4 cxd4 f4 axb4 Na3 e5 Bd2 exf4 Rb1 b6 Rb3 b5 Rg3 b3 Rg6 b2 Ra6 Be7 Ra4 Bf8 g3 h5 Bc1 h4 Kd2 h3 Ra7 Be7 Ke1 Bh4 Bd2 b1R Nc2 Rc1 Na1 Rxa1 Be3 g5 Bc1 g4 Bd2 Nc6 Ra5 Nce7 Ra7 Nf5 gxh4 g3 Ra6 g2 Ra7 Ng3 hxg3 Qf6 Kf2 Qg5 Ke1 Qd8 Kf2 f5 Kf3 Kf7 e4 Kg6 e5 d5 c5 d3 c6 d4 g4 h2 c7 Rc1 g5 Qf6 e6 Ba6 Qc2 Rf8 Rb7 Rh7 c8Q Rd7 Be1 d2 Q2c6 d1B+ Be2 d3 Rc7 d2 Nh3 g1R Kf2 f3 Ke3 f4+ Ke4 f2 Qc2 f1B Qa4 f3 Nf2 Bg2 Nd3 f2+ Bf3 f1B Nb4 Rd5 Rf7 Rc7 e7 Qc3 Bf2 Bd3+ Kf4 Qh8 Bd4 B1c2 Ba1 Nf6 Rh7 Rdd8 Ke5 d1B Ke6 Nd7 Kd6 Qb2 h5+ Kf5 h6 Kg6 Bb7 Kh5 g6 Rf2 g7 Bg4 g8Q B2f3 Rg7 Bh7 Be4 Rb1 Rd1 h1B Rd3 Bhg2 Ra3 Rh1 Bd3 Ba8 Be4 B4f3 Ke6 Nc5+ Kf7 Rdd1 Ke8 Rdd2 Bd5 Bh3 Kd8 Bd7 Bb7 Bfg4 Bg2 Bde6+ Qd7 Bed5 Qc6 Rb7 Qc8 Rc7
2q2KbR/1nQ2Q2/2P1RBPp/3q1k2/2N1r1p1/r1q1P1Qr/5Nn1/5b1b w - - 0 1 legal: proof: f4 b5 g4 c5 a4 a6 d4 cxd4 axb5 e6 f5 exf5 b6 fxg4 Ra4 g3 Ra2 Ba3 Ra1 Bf8 h4 g5 b4 g4 b7 Bd6 b5 Bc5 b6 Kf8 Bg2 Be7 Bc6 Bg5 hxg5 Ke8 Bb5 axb5 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf4 f5 c4 d3 g6 g2 e3 d4 c5 d2 c6 b4 Qf1 d1Q Rh6 b3 Qb5 d3 Nd2 b2 Nf1 b1B Rh1 d2 Rh6 Nf6 Kg5 f4 Qb4 f3 Qb5 f2 Nh3 g1Q Bb2 Be4 Ng3 f1B Qe2 Nbd7 b8Q Nc5 b7 Nh5+ Bf6 Bh1 Qc7 Ra3 b8Q Nb7 Nf2 Nf4 Nge4 Ng2 Qf3 Qh2 Rh3 Qe5+ Kh6 Qc3 Kg7 h6 Rh5 Re8 Nd6 Bd7 Rc5 Qc8 Nc4 Qdb3 Qcg3 d1R Qbc7 Rd5 Ra5 Rh5 Rd1 Rh3 Ra8 Qb5 Rb8 Qbe5 Qd5+ Kf5 Qf7 Re7 Rd6 Qd5 Ra8 Re4 Re6 Be8 Kf8 Qcd7 Qg7 Bf7 Rae8 Bg8 Qf7 Qc8 Kg7 Bh7 Rh8 Nd8 Kf8 Bg8 Ke8 Nb7+ Ke7 Nd8 Kf8 Nb7+
2r4n/1KP1r2B/3N1n2/P1rp3N/3Q1r2/1QP4R/1bbpRbQ1/2k3rn w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 exf5 g5 g3 gxh4 d4 hxg3 d5 c5 Bb2 Qb6 Bd4 Qc6 dxc6 cxd4 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 Kd5 Kf4 a4 h5 a5 b5 f3 Ke3 f4 e5 f6 b3 f7 g2 c7 d3 c3 d2 f5 b2 f6 e4 Rh4 b4 Qb3 Ne7+ Kc5 Ng6+ Kb6 Rh7 Qa4 b3 Bb5 Ba3 f8Q Re7 f7 Nh8 Ne2 g1R Rh2 h4 Qg8 h3 Rh1 h2 f8Q d5 Bd3 Nd7+ Kc6 Nf6 Ra2 Bf5 Bc2 Rc8 Bd1 Kd3 Ng3 e3 Ra1 e2 Qfg7 e1B Kb7 Bf2 Nh5 Rg4 Re1 h1N Re2 Rf4 Qg2 Bg6 Qg7 Bh7 Re6 Be4 Bc2+ Ke2 Bd3+ Kd1 Re5 Bg6 Re2 Kc1 Bf5 Be8 Bh7 Bg6 Qc4 Bc2 Q7g4 Bac5 Na3+ b1R Nb5 b2 Ra4 Ba3 Nd6 Ra1 Qb5 b1R Qb3 Bb2 Rd4 Ra4 Rd3 Rac4 Rh3 Rc5 Qf5 Ra1 Qfe4 Rg4 Qd4 Ra4 Qf3 Rg1 Qg2 Rac4 Qe5 Rh4 Qd4 Rf4
4r3/2NqR2R/1NB5/rnPrQ3/2n1pnqn/PKP1qp2/6k1/2nQ1N2 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 e4 dxe4 h5 e5 h6 e3 Na3 gxh6 Nb1 h5 Qg4 h4 Qf3 Ra3 Qd1 Ra8 d3 c5 Qg4 e4 Qg6 c4 Ba3 c3 Qh5 Bg7 Qd1 Be5 fxe5 Be6 Bb2 Bc4 dxc4 cxb2 g4 Ke7 c3 Ke6 a3 f5 g5 b5 g6 h5 g7 h3 c5 h2 Qc2 e2 Nh3 b3 Qc1 b4 Nd2 b1Q Qd1 h4 Nf2 b2 Nc4 h3 Nd3 b3 Kd2 e1N Bg2 f4 Na5 Kf5 e6 f3 e7 Kg4 e8Q Kg3 Ra2 Nc6 Qc1 Nge7 g8N Nf5 Qe7 Qd7 Qf8 Ncd4 Nf4 Nb5+ Nd3 Nh4 Bf1 Neg2 Qc8 Nf4 Nf6 Re8 Nc4 Ra5 Qd1 Qa1 Qa8 b1R Ne3 b2 Kc2 Rc1+ Kb3 b1N Qb8 Nd2+ Kb4 Qg4 Rb2 Nc4 Qe5 Qa2 Rb1 Qd2 Nb2 Qdd7 Nfd5 Rc2 Na4 Rd2 Nc7 Rd5 Nb6 Kf2 Rg1 h1Q Kb3 h2 Bd3 Qhg2 Nf1 h1N Bc2 Ng3 Rh1 Nge2 Rh3 Nf5 Rh7 Kg1 Rb2 Qf2 Bd3 Qe3 Re7 Neg3 Rh2 Nge2 Rhh7 Kg2 Bc2 Nh4 Bd3 Nb2 Bc4 Rd6 Bd5 Nc4 Bb7 Rd5 Bc6 Nc1+
1k1q1r1K/1b2Q2Q/2r1P3/2B5/1P1qpPbb/3R2p1/RR2r1b1/BNrq4 w - - 0 1 illegal: No possible last move, all moves rejected
q1R5/1pr2nb1/1pPP4/2nQ3n/2NB1kB1/3bp3/1PB2r2/N1Qb2qK w - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 f5 exf5 c6 a5 Qb6 a6 Qb4 Qe2 Qb6 Qb5 Qd8 Qb6 axb6 a7 Na6 d4 c5 d5 Rb8 a8Q Nc7 Qa4 Na6 Qc4 Qc7 Qd4 Qh2 Nf3 Qg1 Nxg1 Ra8 c4 d6 Ra5 cxd4 c5 Nc7 c6 Na6 Rc5 dxc5 f4 Kf7 Kf2 Kf6 g4 e5 Kg2 h5 d6 e4 Bc4 e3 Nf3 h3+ Kh2 h4 Bd3 c4 Ne1 c3 Be4 d3 Nd2 c2 Nc4 Bg7 Bd2 c1Q Nc2 Nc5 Na1 Nh6 Rf1 Rg8 Kh1 h2 Be1 d2 Bc2 d1B g5+ Kf7 f6 Ke6 f7 Rf8 f5+ Kd5 f6 Bf5 g6 Bd3 Rf5+ Ke4 Rh5 Rac8 Bc3 Kf4 Bd4 Rc7 Re5 Qb1 Re8 Qa2 Rb8 Qa8 Rc8 Rg8 f8Q Nf7 Qe8 Rh8 Qe6 Rf8 Kg2 h1N Qd5 h3+ Kg1 Bh6 g7 Ng3 g8B Nh5 Kh1 h2 Bh7 Bg7 Bf5 Re8 Bg4 Re5 Qg2 Rf5 Qg1 Ng5 f7 Rf6 f8Q Nf7 Qe7 Rf5 Kg2 Rf6 Qe6 Rf5 Be2 Rf6 Qd5 h1Q+ Kf1 Qh4 Kg2 Qg5+ Kh1 Qg3 Bg4 B1e2 Bf5 Kg5 Qc1 Bd1 Bd7+ Rf5 Qe6 Rf2 Qd5+ Kf4 Bg4 Qg1+
4q2K/qqk1P2Q/4p1rn/PRb2pB1/1PBQ1rBp/q3Npp1/2N5/8 w - - 0 1 legal: proof: b4 a5 f4 axb4 f5 b5 f6 b3 Nh3 b2 Na3 b1Q Ng1 exf6 Nf3 f5 Ng1 f4 e4 b4 e5 b3 e6 b2 Qg4 Ba6 Qg6 Ke7 Qg4 Kd6 e7 Bc4 Qd1 Bb3 cxb3 Kc6 h4 g5 d3 g4 b4 Kd6 Qf3 Qc2 Bd2 Na6 Bc3 Qxg2 Bf6 Nc5 Rc1 Ne4 Rc6+ Kd5 Re6 dxe6 Bd4 Kd6 Bf6 Ng5 hxg5 Qc8 Nc4+ Kd7 a4 Qe8 Na3 Qd8 a5 c5 g6 h5 g7 g3 d4 c4 d5 c3 d6 c2 Nc4 Rc8 Ne3 Rc3 Bc4 Qb6 Ne2 b1Q+ Kd2 Qgg1 Nd4 Qbf1 Bg5 f6 Qe4 f3 Qh7 Nh6 g8B Qb7 Bf7 Rg8 Bg6 Rb3 Bf5 Rg6 Bg4 Bg7 Rh4 Kc8 d7+ Kc7 Rh1 Rb2 Kc3 c1Q+ Ndc2 h4 Kd4 Ra2 Rh2 Qa3 Rd2 Qb1 Re2 Qbb3 Rd2 Qba4 Rd3 Ra1 Rd2 Rd1 d8Q+ Kc6 Ke4 f5+ Kf4 Qab5 Rd5 Bd4 Qdh8 Ba7 Qd4 Kc7 Ke5 Qe8 Rb5 Rd3 Bf6 Bc5 Bg5 Rg8 Kf6 Rg7 Qa1 Rd4 Qd1 Rf4 Qd4 Rf7+ Kg6 Rf6+ Kg7 Qd7 Kh8 Rg6 Nd1 Qdc6 Qdg7 Qd4 Nde3 Qdd7 Qc3 Qca6 Qb2 Qaa7 Qd4 Qe8+
bb1R2NQ/2nN1r1n/N1r1kPrb/Q2n4/1rrr4/Pr2P3/1K3BR1/5q2 w - - 0 1 illegal: No possible last move, all moves rejected
1k1n3b/2rq1R2/1b1qrqB1/N1QqB1RK/1b5B/3P1QP1/1qq3P1/5q1n w - - 0 1 illegal: Other
5nn1/b1b1R3/QB3r2/PKb1r2Q/1RnR2bP/P1rb2qN/2nk3N/7n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Kf2 f5 Bg4 fxg4 Ke1 g3 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 e3 Ke4 a3 f5 h4 Rh6 c3 g5 Nf3 g1B Kb5 d5 c4 g2 c5 g4 c6 d3 c7 d2 Qb3 d1N Qb2 Kd3 e4 d4 e5 f4 e6 g3 e7 Nd7 e8R Bd6 Rh3 Rf6 Nh2 f3 Qa2 f2 Nd2 f1B Ng4 Nf2 Rh2 Nf8 Nb3 Nh1 Rh3 b6 Kc6 b5 Rh2 b4 Nd2 b3 Re2 b2 Ne3 b1N Ne4 Nd2 Qd5 Bg4 c8Q Qc7+ Kb5 Rb8+ Ka4 Rb3 Nf5 Nc4 Qf7 Rc3 Raa2 Bf2 Reb2 g1B Ng5 g2 Be3 Bfg3 Rh3 B1f2 Qg6 g1R Kb5 Bfe2 Qe6 Re1 Rb4 Bf1 Ra1 Kc2 Rd1 d3 Qc8 d2 Qh5 Re2 Re1 d1N Qa6 Bgf4 Bd4 Nde3 Ng3 Kd2 Ba7 Nc2 Rh2 Kd3 Nh3 B2e3 Rf2 Kd2 Bd4 Bfe5 Rf4 Bg1 Bf2 Re4 Bc5 Bd3 Ba7 Bb6 Re3 Bdc5 Nf1+ Kd1 Nh2 Kd2 Re1 Re3 Rd4 Qd6 Bb8 Ba7 Bc7 Bg3 Bb6 Qf4 Nf2 Qf3 Nh3 Bc7 Rd8 Qg3 Rd4 Re5 Ree4 Rg5 Re7 Re5
6Qq/1k3NBq/r2Bn2P/1b1N1r2/1BPr1rnb/r1K5/2n2P2/2Rb1rQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 h5 cxd4 b4 Nh6 g4 Nf7 Bc4 Qb6 Rh4 gxh4 g5 Bg7 g6 Bf8 g7 Nh6 Bd5 Ng8 Bf7+ Kd8 Bg6 hxg6 Ra3 Qa5 Rh3 Ke8 Rh1 Qd8 Kd2 e5 c4 a5 b6 d5 b7 Kd7 b5 Kc7 Qg4 h3 Qg5 a4 Qg4 a3 Qe2 e3+ Kc2 d3+ Kb3 e4 Qf3 h2 Ne2 d4 Qg4 a2 Qf5 a1R Kb2 g5 Ng3 g4 Rf1 h1Q Bd2 e2 Be3 e1N Bg5 e3 Na3 e2 Qe4 d2 Bh6 d1B Qf5 d3 Qe6 d2 Bg5 Be7 Qh6 Bd7 Qg6 Na6 b8B+ Kb7 b6 Nh6 g8Q Nc2 Be5 e1R Bc7 Re4 Be5 Rf4 Rg1 Bb5 Kc3 Nc5 Nf1 g3 Ne3 g2 Nd5 Ng4 Bg7 Ra6 h6 Ne6 Re1 g1R Bh4 Rf5 Bg3 Qa8 Bd6 Bh4 Bb4 Qe4 Qg5 Rf1 Qg6 Be2 Rc1 d1R Qg5 Rd4 Qg6 Kc6 b7 Bd1 b8B Kb7 B8d6 Rf4 Qg5 Qh7 Qg6 Ne5 Qg1 Ng4 Nb1 Qf8 Nd2 R1a4 Nf3 Ra3+ Kb2 Qd8 Ng5 Qf6 Nf7 Qe5 Qd8 Rf8 Qg5 Rc8 Qd8 Rc5 Qg8 Qf6 Nb6 Rcf5 Nd5 R3a5 Kc3 Ra2 Bgf8 Qfh8 Bg7 R2a3+
6R1/P1b2n1n/2RqB1n1/Q1r3Qn/N3Q3/4rPBb/b4P1K/2krn1nq w - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 g5 cxd4 g6 f5 Ba3 f4 Bb2 f3 exf3 hxg6 Ba3 g5 Bc1 g4 c4 Kf7 a4 Ke6 h4 Ke5 c5 b5 c6 g5 h5 d5 a5 d3 h6 Kd4 a6 e5 h7 g3 a7 e4 c7 d2+ Ke2 g4 Ba3 e3 Bg2 b3 Kf1 Kd3 Qe1 Kc2 Be7 d1N Qb4 e2+ Ke1 b2 Qd6 b4 Rh3 b3 Rh6 d4 Qb4 d3 Ra5 Qd6 Qe4 Ne3 Rhh5 Nd5 Bd8 Nh6 Ra4 Nf7 Re5 Nf4 Qb4 Ng6 Bh4 Nd7 Qb5 Kc1 Re7 Nf6 Qb6 Nh5 Nc3 b1B Rae4 b2 R7e6 Ba2 Qa5 b1N Na4 Nd2 Bh3 g2 Bg3 Rg8 Rd4 Ne4 h8Q Neg5 Qhe5 Nh7 Qe4 Bh6 Rb4 Bf4 Rb8 Re8 Rf6 Re6 Qg5 Bd7 Rg8 Rc8 Qa5 Re5 Re6 Re8 c8Q+ Rc5 Qcd8 Be5 Qg5+ Bf4 Bh2 g3 Rf6 Re7 Be6 Re8 Bc4 Bh3 Re6 Qd4 Rc6 Ree5 Be6 Qd6 Qd4 Re3 Qe4 Kb1 Kd2 e1N Ne2 g1N Kd1 Nh6 Kd2 g2 Ng3 Nf7 Nh1 Qd7 Bg3 Bc7 Qeg4 Ree5 Qe4 Qd6 Ke3 Kc1 Rg7 d2 Rg8 d1R Bh4 Red5 Re8 Nge5 Rg8 N5f6 Kf4 R5d3 Kg3+ Re3 Kh2 Ng6+ Bg3 Nh5 Rb6 Ne2 Ra6 Ng1 Rc6 gxh1Q+
R7/P1q4Q/2Qn3N/RP2P2K/1q2nrn1/b1r2nkn/b5q1/B1rQ1Bn1 w - - 0 1 legal: proof: b4 a5 h4 d5 f4 g5 a4 gxh4 c4 e5 cxd5 exf4 Qb3 b6 b5 Ra7 Qb4 Ra8 Na3 Bc5 Nc4 axb4 a5 Bd6 a6 Bf8 Na5 bxa5 Kf2 Kd7 Kf3 Kd6 d4 h5 g4 f5 e4 c5 a7 h3 g5 h2 g6 c4 g7 h4 Bd2 b3 Bd3 c3 Bf1 b2 Rc1 b1Q Ne2 c2 Ng1 h3 Rd1 c1N Ne2 a4 Bg2 a3 Rdg1 a2 Be1 a1R Ng3 Nf6 g8Q Ng4 Bf2 Qb4 Qg6+ Be6 Qg5 Nd7 Be1 Nc5 Bd2 Nb7 Nf1 Rc8 Bc3 Ne2 Qg7 Rh4 Qg6 Qc7 Qh7 Rc1 Ne3 Bg8 Rd1 Bf7 Rhg1 h1N Rd2 h2 Qh8 Nhf2 Bh3 h1N Bf1 Nhg3 Qh7 Nh3 Ba1 Rc3 Ra2 Bg8 Rh1 Neg1+ Kg2 Nf3 Ra3 Ne2 Ra5 Neg1 Rh2 Nfg5 Rh1 f3+ Kg3 f2 Rh2 N5f3 Rh1 Nge5 Ng4 Be6 Nh6 Rf4 Rh2 Ng4 Rh1 Nd2+ Kh4 Ndf3+ Kh5 Bg8 Bc4 f1N Rh2 N1d2 Bf1 Rc1 Re2 Qb8 Re3 R8c3 Re1 Be7 Rd1 Qc7 e5+ Kd7 d6 Ke6 d7 Ne4 d8Q Nbd6 Qb8 Nf7 Be2 Nf3g5 Ra6+ Qbd6 Ra5 Rff3 Kg6 f4 Qg7 Rf1 Qh7 f3 Kh5 f2 Qb7 Qa3 Qh8 Qb2 Bd3 Ba3 Qh7 Qb4 Rd2 Rfe1 Qa8 f1Q Rf2 Qg2 Qc6+ Qcd6 Rd2 Rf1 Rd1 Rf6 Bf1 N5f3 d5+ Ke7 Qa8 Qc7 d6+ Ke6 d7 Rc4 d8Q R4c3 Rd7 Rf5+ Qg5 Nfd6 Rd8 Rf6 Qd2 Rf7 Qg7 Rf6 Qd1 Rf8 Nf7 Kf5 Qh7+ Kf4 Nh6 Kg3 Qc6 Ba2 Ra8 Rf4
rBRq1b2/3Bnn1Q/1Nb2P2/n1k2b2/2qR1bP1/5r2/1Qn2P1K/b2R2n1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 exf5 axb4 d4 cxd4 h4 g5 Na3 gxh4 Be2 bxa3 Bb5 Qb6 Bf1 Qd8 g4 b5 c4 e5 c5 Ke7 c6 Kd6 c7 h5 a5 b4 f6 b3 a6 a2 a7 d3 Bf4 h3 Bh6 d2+ Ke2 e4 Qc2 d1N Qb2 h2 Bc1 h4 Bh3 e3 Kf3 e2 Kg2 e1B Bh6 Nc3 Rd1+ Bd2 Rf1 a1B Bf4+ Kc5 Rb1 d5 Qc2 d4 Be3 b2 Qe4 Nb5 Qh7 Nc6 Ne2 Nge7 Nc1 Bf5 c8R Nd6 Qh6 Nf7 Bg5 d3 Qg6 Bf4 Re1 h1N Ne2 d2 Qh7 d1N Nc3 Ng3 Nd5 Ne2 Nb6 Ng1 Re4 Ne3+ Kh1 Nc2 Bf1 h3 Bb5 h2 Rd1 b1Q Red4 Qa2 Bh6 Bc1 Bf4 Qc4 Bb8 Bch6 Kg2 h1B+ Kh2 Bf3 Bc7 Na5 Bd7 Bc6 Be5 Rb8 a8Q Bd2 Qa6 Ra8 Bg3 Bf4 Qb7 Nb3 Qb8 Ra3 Qb7 Na5 Qb8 Rf3 Qb7 Be3 Bb8 Bf4+ Kg2 Rg8 Bc7 Nh3 Na8 Qe8 Rb8 Qc8 Qb2 Ng1 Nb6 B8h6 Be5 Qc7 Kh1 Rc8 Ra8 Qd8 Rb8 Rc7 Rc8 Ra7 Bb8 Bf8 Kg2 Ra8 Kh1 Bc1 Kh2 Bf4+
2qq1n2/1rk1q1q1/4b1B1/3qRPQ1/4b1rR/rP1n2Q1/1N3P1N/1Krn3Q w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 h5 bxa4 e3 f6 h6 gxh6 Ra3 h5 Ra1 Bh6 Bd2 Bf4 exf4 h4 Ba5 Na6 Bc7 Nb8 Be5 fxe5 Kd2 d5 Kc1 Kd7 c4 h5 g4 a5 c5 h3 c6+ Kc7 f5 d3 b3 d2+ Kb2 a3+ Ka2 h2 g5 d4 g6 e4 g7 e5 Ba6 d3 Qf3 d1N Nc3 a4 Qg2 d2 Bb5 e3 Kb1 h4 Bc4 e4 Be2 h3 Qf1 a2+ Kc2 a3 Qe1 Nf6 g8Q Nd5 Ba6 e2 Nb1 e3 Nc3 Be6 Qg3+ Nf4 Bb5 Nd7 Rc1 a1Q Rb1 a2 Rb2 Nf8 Qg5 Rb8 Ba6 Nd3 Qg4 Qc8 Qf3 Rh4 Bc4 Rb7 Na4 Rg4 Rb1 Qd4 Nb2 a1R Qg3+ Qe5 Nf3 Ra3 Qf1 e1R Rc1 e2 Kb1 Rb5 Qfg2 Rb7 Bd5 Rg1 Rc5 e1Q Rb5 Qe3 Ra5 Qg5 Bc4 Qd6 Re5 Qg7 Bb5 Qde7 Bc4 Bd7 Bf7 Be6 Bg6 Re1 Rf1 h1Q Nh2 Raa7 Q2f3 Ra3 Qff4 Qd5 Qg5 Ree4 Re1 Rc4 R1e4 Rc3 Nf1 h2 Rd4 h1B Nh2 Kd6 c7 Be4 Rb4 Qcd8 c8Q Rc5 Qa8 Kc7 Qf3 Qc8 Rc4 Ne3 Qg3 d1Q+ Rc1 Qd2 Rc4 Nd1 Rc1 Qdd8 Qh6 Qa5 Qhe3 Rb5 Qef4 B4d5 Nf1 Ne3 Qg5 Bf3 Re1 Nd1 Qd5 Rb7 R5e4+ Rf4 Nh2 Bh1 Rb4 Rc4 Qdg2 Qad5 Re5 Rh4 Qf1 Rc2 Rf4 Be4 Qh1 Rg4 Qe3 Rg1 Rh4 Rg4 Qg3 Rc1+
1N2BB1K/2Q1n1q1/2R1N3/1b2P1b1/1qq1P1P1/1b2r1N1/qk2n3/2r1rrQr w - - 0 1 illegal: No possible last move
3Q1nQ1/2nr4/2BN1PR1/2Pb1q2/b7/Bb1bqrR1/kPqn1b2/2q2BK1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 Kf2 Ke6 c4 h5 g4 a5 b6 d5 g5 h3 g6 a4 g7 e3+ Ke2 h4 b7 a3 Nc3 h2 Bg2 a2 Kf1 d3 Rb1 a1N Bd2 d4 Qa4 e2+ Kf2 e1Q+ Kf3 h3 Qa7 Qd1+ Kf2 Qa5 Be1 d2 Ne4 d3 Rc1 Nd7 b8Q Rh7 Rc3 Nb3 Qd4 Qc2 Qda7 d1B+ Nd2 Ba6 Kf1 Qf5 Ndf3 d2 Qd4 Ngf6 Qf2 Ne8 Nh4 Nc7 g8B+ Kd6 Re3 Kc5 Qe8 Kb4 Qc8 e5 B2d5 e4 Rg3 e3 Qf3 e2+ Kf2 Rf7 Qg4 Ra7 Bc6 Bd6 c5 Nf8 Qd8 Bd3 Qf3 Ra3 Be4 Rd7 Qg4 Be7 Ng6 Bh4 Nh8 Ka4 Bc4 Kb4 Nf3 Ka4 Rg1 h1Q Ng5 h2 Bb7 Qhe4 Bbd5 h1B Nhf7 Qe8 Ba8 Bd5 Ne4 Qee5 Bb7 Qd4+ Kg2 Qe3 Nd6 Kb4 Qg8 Ka4 Bf2 e1Q Kh1 Na5 Bb5+ Kb3 B7c6 Nc4 Kh2 Qf1 Be1 Ka2 Kh1 Qb1 Kh2 Bb3 Nf2 d1B Bb4 Nd2 R1g2 Qfe2 Kg1 Qc1 Rg6 Ba4 R2g3 Rc3 Ba3 B1b3+ Kh2 Qed1 Bc4 Qdc2 Ba6 Qfe4 f5 Qe6 f6 Qf5 Qa8 Rc4 Qb8 Rf4 Qd8 Rf3 Bab5 B3e4 Be2 Bd3 Bf1 Ne4 R3g4 B5c4 Kg1 Nd2 Rg2 Bd5 R2g5 Qe8 Nh1 Be1 Nf2 Qe3 Rg3 Bxf2+
5q1q/2b2N2/4PQPb/2r1n2r/k2q1r1N/2bP2r1/1R4Rn/nQ1RKBn1 w - - 0 1 illegal: No possible last move, all moves rejected
KQ6/N2kB1b1/1Pn4R/Rq2r3/b1P5/1Pq2rrn/2q2NN1/qnQ1bb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 f5 Kd3 a5 Kc4 g5 Kd5 g4 h4 d3 c4 d2 e4 a4 b6 a3 e5 f4 e6 a2 h5 f3 e7 f2 b3 f1B h6 Ra5+ Kd6 Nc6 h7 Bg7 Rh5 Nf6 Nh3 g1N Rh6 g2 Nf4 g3 Qe2 d1Q+ Nd3 Qc2 Nb4 Nd5 Ba3 Qc3 Re6 Nh3 Rf6 g1R Qd3 g2 Qe2 Rf8 Re6 Rf3 h8N Ba6 Rh6 Bb5 Nd2 Ba4 Ng6 Rb5 Rb1 a1Q Nf4 Qc8 Qe5 Qa6 Ne4 Rc5 Qg5 Qb5 Nc2 Qe3 Rc1 Nc3 Kc7 d5 Kb7 d4 Nb4 d3 Nf2 d2 Ka8 d1Q Rc2 Re5 Ra2 Nb8 Nc6 Nb1 Bb4 Qec3 Na7 Kd7 Bd6 Qdc2 Ra3 Rh1 Bc5 g1B Ng2 Bh2 Qc1 Nc6 Bb4 Bg3 Bd6 Rg1 Ra2 Qd5 Bc5 Bb5 Ra5 Ba4 Nh1 Nf4 Ne3 Be1 Nf2 Rgg3 Ng2 Re6 Bb4 Nh3 Ba3 Qc5 e8Q+ Kd6 Qg8 Kd7 Qb8 Qb5 Be7 Re5
3kn3/3P1P1b/qN1Q3q/Q1NRB3/1KP1r1Br/4r1rq/1Q5n/1n1nb2b w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 b4 d5 c4 c5 Ra3 cxb4 Rg3 d4 Rc3 dxc3 g4 h5 f4 e5 d4 a5 b6 c2 Kd2 h3 b7 b3 Kc3 e3 d5 e4 g5 e2 g6 e1R f5 h4 f6 h2 g7 b2 d6 a4 Nh3 a3 Qd2 e3 Kb4 a2 Qf2 a1Q Kc3 e2 Bf4 c1Q+ Kb4 Ra3 Nd2 b1N Ng5 h3 Qh4 Nh6 g8Q Qd7 f7+ Kd8 Bg2 Rg3 Qg4 Qa6 Qf5 Ng4 Nde4 Rh4 Rf1 h1B Qgh7 h2 Nf3 Qe3 Be5 Qh6 Qg7 Qde6 Bb2 Nd7 b8Q Ndf6 Nc5 Ne8 Ne5 Be7 Ba1 Bg5 Ned7 Bd2+ Bc3 Qee3 Ba8 Qf3 Qf8 Qg2 Bf3 Qh3 Qb5 Bb7 Nb6 Be4 Qh5 Bh7 d7 Ne3 Be4 Nd1 Bf5 Re4 Bg4 Qh4 Qa5 Bf3 Rf2 h1R Be6 Rhh3 Qg4 Bh1 Qgg7 Qg4 Rf1 Rh4 Rf5 Qh3 Rg5 Reg1 Bf5 Rge3 Qd6 e1N Bg4 Rgg3 Rd5 Nf3 Qd4 Be1 Qd2 Rg1 Be5 Rg3 Qc3 Nh2 Qd2 Rc3 Qb2 Rce3+
2q1nrbN/1PQ4n/Bb1b2q1/3qQNb1/2rPRr2/1K1QRP2/3n2kq/8 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 Ba3 dxc4 axb5 f5 b6 fxe4 b5 Ba6 Bc5 Bc8 Bb4 axb4 d4 Kd7 Kd2 Ke6 Kc2 Kf5 g4+ Kf4 b7 e5 b6 c5 g5 h5 g6 h3 g7 c3 Qe2 e3 Qd1 h2 Na3 h4 Nc4 h3 Rc1 e2 Qe1 b3+ Kb1 b2 Kc2 b1N Nf3 e4 Rd1 e3 Rc1 Nd2 Qd1 e1B Na5 c4 Ra1 e2 Rc1 Be6 Ra1 Nd7 b8Q+ Bd6 b7 Qc8 Bg2 Ndf6 Ne5 Nh7 Rc1 Ngf6 g8Q Ne8 Qg7 Bg8 Rg1 h1Q Be4 h2 Bc6 Qd5 f3 h1Q Qg2 Qh2 Bd7 Bh4 Qdf1 e1B Qc7 Bg5 Qge2 Beh4 Rh1 Kg3 Nac6 Bd8 Rb1 Bhg5 Ne7 Rb8 Qfd1 Ra8 Qd3 Kg2 Bb5 Qf5 Qe4 Qg6 Rb3 Ra6 Nf7 Rb6 Kc1 c2 Kb2 c1R Nf5 c3+ Ka2 c2 Re1 Rc6 Qe5 Rc4 Rbe3 Ra1+ Kb2 Ra8 Ba6 c1Q+ Ka2 Qc3 Re4 Rc8 R1e3 Qc1 Qb8 Bb6 Qc2 R8c7 Qd3 Re7 Qc8 Re6 Qc7 Rf6 N5h6 Rf4 Nf5 Qc3 Nd8 Be6 Nf7 Rf8 Nh8 Bf7 Qd8 Bg8 Qc7 Qca5+ Kb2 Qab5+ Ka2 Qd7 Kb2 Qc8 Ka2 Nb1 Kb3 Nd2+
N1r1qk2/3Knb2/P7/n1P2n1P/R1N1rb1n/1Q1b1B1q/qN1q2QB/7b w - - 0 1 illegal: No possible last move
b2rq3/bQ3BKn/4N2r/2P3PP/2N1n3/Rq1rq1q1/2B3pQ/1nkN3q w - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 a3 g5 Be3 h5 Bf2 h4 Bg3 hxg3 a4 b5 axb5 f3 Ra6 Bg7 Rf6 Bf8 Rf4 gxf4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 h4 d5 e4 a5 c4 f2 g5 f3 b6 Kf4 e5 g2 b5 a4 h5 a3 b7 a2 e6 a1Q e7 Rh6 e8B Qa7 b6 Nd7 b8N Ndf6 b7 Bc5 Na3 Nh7 Nc2 Ngf6 Nb4 Ne4 Bf7 Qe8 Be2 f1Q N8a6 f2 Na2 Qe1 Qa1 f1N Rh3 Nfd2 Qc1 Qg3+ Kc2 Ke3 b8Q d3+ Kb2 f4 Qc2 d4 Nc3 f3 Qb1 f2 Bd1 f1Q Nc7 Bb7 Nf3 Qh1 Ne5 Bc6 Qb7 Rd8 Ne6 Bd5 Qb8 Ba8 Bc2 Qae7 Qb7 Ba7 Nd1+ Ke2 Qa1 Nb1 c5 d2 Nc4 d3 Kb3 Ke1 Qe5 Ke2 Qd4 Ke1 Qg1+ Ke2 Qh2 Ke1 Nde3 d1Q Kb4 Qdf3 Nd1 Qe3 Kb3 d2+ Kb4 Qg8 Kb5 Qb3+ Kc6 Qbe3 Nd6 Qee8+ Kd5 Qg4 Ke5 Qgg3+ Kf5 Ke2 Nf2 d1R Nc4 R1d3 Nd1 Qd6 Ne5 Kd2 Nc4+ Kc1 Rg3 Qe2 Rf3 Qg3 Re3 R3d7 Ra3 Rd3 Ncb2 Qh8 Nc4 Qb2 Nf2 Qb3 Nd1 Qh4 Ke5 Qe3 Kf5 Nhf6 Ke5 Qhg3+ Kf5 Rh8 Kg6 Rh6+ Kg7 Nh7
Nbq2kqr/b5N1/qB5P/1NPK3R/5b1Q/b2Q1P1n/n1rR1p2/4r2b w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 d6 e3 Ra6 cxd6 Ra5 d5 Ra1 d4 f3 f5 Qd2 Qh4+ Kd1 Rh6 Qe1 Rh5 Qf2 exf2 e4 Qf6 e5 Qd8 Bd3 Rh8 Be4 fxe4 Kd2 a5 h4 g5 c4 d5 b4 a4 e6 d3 Ke3 d4+ Kd2 a3 h5 a2 b6 g3 e7 g2 b7 g4 b5 g3 b6 e3+ Kd1 e2+ Kd2 e1B+ Kd1 d2 Ke2 d1R h6 d3+ Ke3 d2 Ke4 Nf6+ Ke5 Nh7 Ba3 Nc6+ Ke4 Nb4 b8Q Ng5+ Ke5 Bh3 b7 Qc8 Ne2 g1B Nd4 g2 Nb5 Bh2+ Kd4 g1Q Qc7 Bg2 b8Q Nh3 Qd8+ Kf7 Qbb6 Bb8 e8N Ra4 Rh2 Bh1 Nbc7 Qg8 Qbd6 Ra6 Nc3 Rc6 Rb1 a1B Ng7 Na2 Kd5 Rc1 N3b5 Bd4 Bc5 d1Q Ra1 Qd3 Na8 Bd2 Bb6 Bf4 Qh4 Re1 Rd1 Qf1 Qdd8 Ba3 Rd2 Bde3 Ba5 Bea7 Bb6 Rce6 c5 R6e2 Rd4 Rc2 Rd2 Qe2 Qd6 Qh7 Qg6+ Kf8 Qd3 Qf1 Rg2 Qg6 Rg5 Qg1 Rh5 Q1g4 Ba5 Qga6 Bb6 Qg6 Nac7 Qh7 Na8 Qg8+
2b1B2K/1Rq3q1/R1qPp3/2b3kr/NnP3b1/QrQ1P3/n1qqr3/2BQ4 w - - 0 1 illegal: No possible last move
2rRq3/6Pk/2N2rpn/1rB3q1/P1N5/1r2Q3/Bnbq1PQ1/1Kn1Qr1b w - - 0 1 legal: proof: b4 a5 h4 axb4 g4 f5 a4 e5 d4 exd4 h5 c5 h6 c4 Ra3 fxg4 Rc3 g6 Rd3 Bg7 hxg7 cxd3 Kd2 Kf7 c4 b5 e4 d5 e5 h5 c5 b3 c6 b4 c7 h4 Nf3 g3 Bg2 h3 Rf1 b2 Qe2 h2 Kd1 h1B Qe3 d2 Kc2 d1N Qh6 d3+ Kb3 d4 Ka2 d2 Rg1 d3 Nh2 b3+ Ka3 Na6 Be4 g2 Qh3 Nb4 Qg3 Qe8 Re1 g1Q Qg5 Bg4 c8Q Nh6 e6+ Kg8 e7 Na2 Qe6+ Kh7 Bb7 Rf8 Nf3 Rf6 Nd4 Rc8 Bd5 Bgf3 Qge3 Qg5 Nc6 Be2 Q6e4 Bh5 Nc3 b1R Nb5 Nb2 Qg2 d1R Nd6 d2 Nc4 Be2 Rg1 Rf1 Be6 d1Q Bd2 Rf5 Bb4 Rf6 Bc5 Qd2 Bd5 Bd1 Bf7 Qed8 e8Q Nc1 Q8e5 Qe8 Qe1 Nbd3 Q5e3 b2 Nd6 Ra1+ Ba2 b1R Nc4 Rb5 Qh2 Be4 Qg2 Rab1 Rh1 Bef3 Rh4 R1b4 Rd4 Nb2 Rd8 Bd5 Qg4 Bh1 Qg2 Ne2 Bb1 Rb3+ Ka2 Nc1+ Ka1 Nbd3 Ba2 Nb2 Kb1 Bc2+
r2nnq2/KN1nRpnk/bQ4r1/2PQ1Bq1/2P4P/1B6/r2n1RbB/5b2 w - - 0 1 legal: proof: f4 c5 b4 cxb4 g4 h5 f5 hxg4 f6 a5 c3 exf6 Na3 f5 Nb1 f4 Na3 Bc5 Nb1 Bd4 c4 Bc3 dxc3 a4 Nd2 Ra7 Nb3 axb3 Kd2 Ra4 Ke1 Ra8 Kd2 Kf8 Kd3 g5 Kd4 Kg7 Kc5 d5 a4 b5 h4 b2 e4 b1N e5 d4 e6 d3 e7 d2 e8Q g3 a5 g2 a6 f3 a7 b3 Ra6 b2 Ra5 f2 Qe5+ Kh7 Qe7 g4 Rh2 b4 Qee1 b3 Rh1 g3 Be2 f1B Nf3 g1N Ra4 g2 Rb4 Nc6 Rb8 Nf6 Rb6 Rg8 Nd4 Ba6 Bd3+ Rg6 Qf2 Nf3 Rb7 g1Q Rh2 Qg5+ Nf5 Qf8+ Kb6 Nd8 Re7 Ne5 Nd6 Ne8 Bf5 Bg2 Qh1 d1N Bf4 Nd2 c5 Bgf1 Qd5 b1R Qe3 b2 Rf2 Ra1 Bh2 b1B c4 Bb5 Qb3 Ba6 Qb4 Ra3 Bc2 Ra4 Bb3 Ne3 Qb5 Nf5 Qbc6 Ra2 Nb7 Rb8 a8B Nd7+ Ka7 Be4 Qb6 Beg2 Na5 Bf3 Bb7 Bh1 Bc8 Bhg2 Nb7 Nfg7 Bc2 Ne5 B8f5 Nd7 Bb3 Ra8+
4BQ1B/1P1b3q/1bRbP3/4n1nK/2RR2rQ/b1PrnN2/pqr3b1/3k4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 h4 Ke7 e4 Kf6 Ke2 Ke5 Kf3 a5 Kg4 d5+ Kf3 g5 b4 f5 b6 a4 b7 f4 h5 a3 b5 a2 h6 g4+ Ke2 d3+ Ke1 Kd4 e5 Kc3 b6 f3 h7 d4 e6 Bd7 Qe2 d2+ Kd1 f2 Qe1 Nc6 Ke2 d3+ Ke3 Bd6 b8Q Nh6 b7 Ne5 Kf4 Qb6 Kg5 Ra4 Be2 f1B Ba3 Qb2 Kh5 Rc8 h8R Nhf7 Rf8 Ng5 Qf2 d1N Qf3 Kd2 Qa7 Ne3 Nh3 g1Q Rd8 g2 Bc5 g3 Bd4 Qh2 Qf8 g1B Rc1 g2 Bg4 Rac4 Qa4 Bf2 Bf5 g1B Bg6 Bg2 Be8 Ke2 Qb4 d2 Qa4 d1R Bc3 Nd3 Bh8 Rg4 Qb4 Rc3 Rc8 Rc5 Rc6 Ne5 Qa4 Rd3 c3 Rcd5 Rd1 Ba3 Qe4 Bg3 Qeb4 Rd2 Qa4 Rc2 Rd4 B1f2 Rf1 Bg1 Rff4 B1f2 Rdc4 Rd3 Rfd4 Kd1 Qab4 Nef7 Qbe7 Bgd6 Qf6 Ne5 Qd8 Qf4 Ng1 Qf5 Nf3 Bg1 Qdf6 Qh7+ Q6h6 Nf1 Rd5 Bb6 Rdd4 Qe7 Qhf6 Ne3 Qf4 Qg7 Qh2 Qe7 Qh4 Qh7+
4Q3/nPBNpb2/Kr1Q4/3rq1P1/2P3n1/Rq1nqq1b/8/N1NqRrk1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 fxe6 f5 e5 Be3 e4 Bg5 Qc7 Bc1 Qd8 h4 Nf6 g4 Kf7 g5 Ne8 Bh3 Nf6 Bg4 Ng8 f6 Ke8 Bf5 gxf5 g6 Bh6 Rh2 Qb6 Rh1 Bg5 hxg5 Qd8 Kd2 d5 b4 Kd7 c4 Ke6 g7 Ke5 b5 Kf4 f7 Kg3 f8N Kg2 b6 a5 b7 h5 Ba3 d3 Kc3 d2 Nh7 e3 Kd3 f4 Qc1 d1Q+ Qd2+ e2 Nc3 h4 Bc5 f3 Bb6 d4 Bc5 f2 Rh3 e1N+ Ke4 d3 Ba7 a3 Bb6 a2 Nb1 a4 Ba5 a3 Nc3 Ra6 Ke5 Qf8 Kd4 Nh6 Kc5 Rb6 g8Q Nc6 Nd5 Qb3 Qc2 d2 Qe4+ Qff3 Qd3 f1R Ndf6 d1Q Qe6 Ng4 Rb1 a1Q Qg8 a2 Qd6 Na7 Ne4 Qac3 Nhf6 a1Q Qe8 Qcc1 Nd2 Qe5+ Qd5 Be6 Ne2 Bf7 Nd7 Rhh6 Ra1 Rhd6 Rb1 Qcc3 Nc1 Kg1 Ra1 Qcd3 Ra3 Qdc3 Rh2 h3 Re2 h2 Re4 Qbc2 Ndb3 h1B Na1 Bg2 Re3 Bh3 Re4 Ra6 Bc7 Qce3+ Kb4 Rab6+ Ka5 Nd3 Qc5 Q3d4 Re1 Qb3 Qd5 Qde3 Qc5 Rd4 Qd5 Rb4 Ka6 Rb5 Qe6 Rdd5 Qd6 Rb6+
B1nn3R/Qp3qP1/4nb1r/PBPn1Br1/1r1N3Q/1bk5/1b4q1/2n1KR2 w - - 0 1 legal: proof: g4 g5 b4 h5 f4 gxf4 d4 c5 g5 a5 bxa5 cxd4 Nd2 e5 Ne4 f3 Bf4 exf4 Kd2 f2 Nf6+ Ke7 Ng4 hxg4 Qc1 Ke8 Qe1 Nh6 Qd1 Ng8 h4 Ke7 e4 Kd6 c4 Kc5 a4 Kb4 e5 f5 a6 d5 g6 d3 h5 f3 a5 g3 a7 d4 h6 f4 e6 g2 c5 Qd7 e7 Nc6 e8B Nge7 h7 Bg7 Rh6 Bf6 Ne2 g1B Bh3 f1N+ Ke1 Ng3 Bg2 f2+ Kd2 f1Q Ra2 f3 Nc1 f2 Qh5 Ne2 Ra3 Nf4 Bh3 Qg2 Qe5 f1R+ Ne2 Rb1 Qh5 Rb3 Kd1 d2 Kc2 d1N Kd2 d3 Qg5 Nf2 Ke3 d2+ Nc3 Kc4 Qe5 Rb4 Qd6 d1N+ Kd2 Ne3 Ra2 N2d3+ Ne2 Qe6 Rb2 Qf7 Bf5 Be6 Rb1 Bb2 Bd7 Rag8 a8B Nc8 Qb8 Nd8 Rf1 Nc1 Qa7 Bd5 Ba4 Nfe6 Ke1 Bh2 Rh5 Bhe5 Nd4 Kc3 Bb5 Bb3 Rh2 Rg7 Rh4 Nd5 Rh2 Re8 h8Q Bf6 Qh6 Rf8 Qg5 Rfg8 Rh8 Rh7 Qh4 Rgg7 Bc2 Rh5 Bf5 Rgh7 g7 Rg5 Be2 Rhh5 Bb5 Rh6
1q1n4/P1np2Q1/bqP1q1B1/1r1P1rQb/N3Nb2/k2Bb3/2bN3R/4K2n w - - 0 1 legal: proof: e4 a5 a4 f5 exf5 c5 b4 cxb4 h4 g5 Ra3 gxh4 Bb2 bxa3 Bc3 Bh6 Bb4 axb4 Be2 Bg7 Bf1 Bf8 g4 h5 f4 b5 d4 e5 c4 Ke7 c5 h3 g5 h4 g6 h2 g7 b3 d5 b2 a5 b4 a6 b3 c6 Kd6 a7 Kc5 f6 Kb4 f5 h3 f7 a2 f6 a1B Nf3 e4 Qd3 e3 Ng5 e2 Qa6 Bd6 f8N Nh6 g8B Qb6 f7 Bf4 Qa2 Ba6 Nc3 b1B Nf3 b2 Nb5 Bc2 Nbd4 b1Q+ Kf2 Rh7 Ng5 e1Q+ Kf3 Qe6 Qc4+ Ka3 Nb3 Bd4 Bd3 Bde3 Ke2 Rg7 Ne4 Rg5 Nbd2 Rf5 Bh7 Q1b4 Rg1 h1B Ke1 h2 Bg6 Bf3 Rg2 h1N Rh2 Bh5 Qd4 Qb2 Qf6 Qbe5 Qg5 Qec7 Nh7 Qcd6 f8Q Nf7 Nc3 Nd8 Qg7 Qb5 Qf8 Bc8 Bc4 Na6 Qh8 Rb8 Nf6 Rb7 Na4 Qb8 Bf1 Nc7 Nfe4 Qa6 Qhf6 Rb5 Bd3 Qab6 Qg7 Ba6
1n2q1r1/1B3N1N/bQ3b1P/3nBB2/bPPbrp2/1k2r3/b5RQ/3bK1b1 w - - 0 1 legal: proof: g4 b5 d4 c5 b4 cxd4 f4 e5 a3 h5 Ra2 exf4 a4 hxg4 axb5 a5 Rb2 a4 Rb3 axb3 h4 Ke7 e4 Kd6 h5 f5 e5+ Kd5 b6 g5 e6 d3 b7 Kc4 h6 d5 c3 d4 e7 g3 e8B g4 Bb2 f3 Bc6 f4 Kd2 f2 Bd7 g2 Be8 g3 Qf3 Ra3 Qe4 Be7 Nh3 g1B Bd7 g2 Kd1 Nf6 Qe1 Rg8 Rh2 Nd5 Rh1 Bf6 Rh2 Qe8 Ba1 b2 Bg4 Kb3 c4 d2 Nc3 b1B Ne4 Ba2 Bd3 f1R Nhg5 Rf2 Nd6 Re2 Qg3 Re4 Bf3 Bf2 Nh7 g1B Rg2 Be3 Ke2 d1B+ Ke1 Be2 Bb1 d3 Be5 Bd4 Nf7 Bd1+ Kf1 d2 Qh2 Bc2 Re2 d1B Rg2 Be2+ Ke1 Nc6 b8Q Ba6 Qb6 Nb8 Nh8 Kc3 Nf7 Ba4 Bg4 Kb2 Bc8 Rae3 Bb7 Kb3 Bc7 Re6 Bf5 R6e4 Be5 Bd1+
kNB1bn1n/1b3P2/1b1K1b1Q/b1rQ1PR1/b2N2b1/R4Pq1/1p6/n1rN4 w - - 0 1 illegal: Other
5Qr1/1NbP2qn/n3kp2/rP5P/1BNb4/2Rrr1n1/2r2Q2/2rrRNK1 w - - 0 1 legal: proof: f4 e5 g4 b5 a4 bxa4 c4 h5 g5 d5 g6 dxc4 Bg2 Kd7 Bf3 Bb7 Bg4+ hxg4 Kf1 Bd5 Kf2 f6 Ke1 Bf7 gxf7 exf4 Kf1 c5 b4 g5 h4 a5 e4 c3 d4 c2 h5 g3 e5 f3 d5 g4 d6 f2 b5 c4 Qe1 c3 Qd1 g2+ Ke2 f1N Kf2 a3 Bh6 c1R Qa4 c2 Qb4 a2 Bd2 g3+ Ke2 a4 Qb3 a3 Qc4 Ra5 Qa4 Qc7 Be1 Ne7 Qf4 Rg8 Qf3 Ng6 Bf2 Ke6 Bc5 Na6 Rh4 Bh6 f8Q Qg7 d7 Bf4 Bd6 Rd1 Be7 c1R Qf2 Rd3 Nd2 Rc2 Re1 a1R Bb4 a2 Nf3 g1B Nh2 g2 Rh3 Rd1 Re3 a1R Rf3 Rcc3 Nc4 R1a3 Re3 Ra2+ Kf3 Ng3 Nf1 Kf5 e6 Bc7 e7 Rac2 e8N Rdc1 Ne5 Ke6 Nd6 Rca3 Nb7 Rcd1 Qc8 Nf8 Qd8 Nh7 Qf8 Rd4 Rc3 Re4 Qd2 Bd4 Nc4 Re3+ Kf2 g1R Qe2 Raa1 Qd2 Rac1 Qe2 Rh1 Qd2 Rh4 Kg1 Rf4 Qf2 Rf3 Ne5 Red3 Nc4+ Rfe3
3n3Q/1b1PQn1r/bP1p2NB/1R4K1/2qBb1R1/1b6/P1nkrbb1/5Bb1 w - - 0 1 illegal: No proof kernel
2RrBK1B/B1Q1b1P1/1rn5/P1n2n2/1r4q1/kq1N1R1q/b3Pp2/Q1r2b2 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Na3 exf4 Qb3 bxa3 Qc2 Qf6 Qd1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 b5 g4 h5 d6 c5 d5 f5 a5 c4 g5 a2 g6 c3 d7 h3 Ke6 f3 Kf7 c2 d6 f2 Bf4 c1R Bg3 h4 Be5 f4 Bb2 h2 Bh3 f1B Bg7 f3 Bc3+ Ka3 Bd4 f2 Bc5+ b4 Qd2 Qb6 d8B Nh6+ Ke8 Be6 d7 Ra6 Bd6 Nf5 Be5 b3 Bg7 b2 Nf3 b1R Qd4 Rb4 Ne1 Nc6 Nd3 Bd5 Bg4 h3 Bh5 Bg8 Rb1 Be7 Qa1 Qb8 Rb2 Rab6 Rc2 Qb7 Rg1 h1Q Rg3 h2 Rf3 Qg1 Bc7 h1Q d8Q Qgg2 Bb8 Qg4 Qc7 Qhh3 Ba7 Bc4+ Kd7 Rf8 Bh8 Bb3 Rc4 Rd8+ Ke6 Qb8 Kf7 Qb7 g7 Qb8 Qd4 a1N Bg6 Ba2 Qc3+ Nb3 Qa1 Bf8 Kg8 Bd6+ Be8 Nc5 Kf7 Be7 Kg8 Bf6 Kf8 Qb7 Rc2 Bg5 Rc4 Be7+ Kg8 Qa6 Nb2+ Nb3 Nd3 Ne5 Qd7 Qc8 Rc2 Qc3 Qd6 Qb2 Rc8 Nc6 Kf7 Bh4 Qe7 Nc5+ Kf8 Qb3 Qc7 Be7+
b3k3/n1PRN1Kp/1qnP1Q1r/2B2r1n/b6Q/1b1Q1N1P/r2r1q1q/4R3 w - - 0 1 legal: proof: g4 a5 b4 axb4 d4 c5 a3 cxd4 Bg2 f5 Bd5 fxg4 e3 d3 Ba2 b3 Kf1 bxa2 Ke1 d2+ Ke2 Nf6 Kf1 Ng8 Qf3 d5 Qf5 e6 Qf6 d4 Qf3 d3 Qe2 Bc5 Qd1 Bd4 exd4 Qf6 Qf3 Qh4 Qd1 Qd8 Kg2 b5 Kg3 g5 f4 b4 c4 b3 a4 b2 c5 e5 c6 e4 d5 e3 h3 e2 d6 e1R a5 Qb6 a6 Re6 f5 Nf6 c7 Rf8 a7 Nh5+ Kh2 g3+ Kg2 g4 f6 Nc6 Nc3 b1N Ba3 Bb7 Qb3 d1B Qb5 d2 Qd3 Bb3 Nd5 d1B Ne7 Nc3 Nf3 Nb5 Rg1 Rf7 Rb1 a1R Bc5 Ra6 Rf1 Ra2+ Rf2 Rb8 a8Q Nba7 Rc1 Bdc2 Re1 Ba4 Rfe2 Bcb3 Rf2 Rd2 Rfe2 Rc8 Qb8 Ba8 Qb7 Rf8 f7+ Kd7 Qba6 Rh6 Qac4 Rb8 Qcd4 Ra2 Qf6 Rb7 Qh4 Rd2 Kg1 g2 Kf2 g3+ Ke3 g1Q+ Ke4 g2 Kf5 Qh2 Re4 g1Q Re5 Rg8 f8Q Qgf2 Qff6 Ke8 R5e4 Rb8 Rg4 Rc8 Rg7 Rf8 Rf7 Bb5 Qg7 Bb7 Qgc3 Ra8 Kg5 Nc8 Ng6+ N6e7 Qh8 Raa2 Qe5 Ba8 Qed4 Ng3 Kf6 B5a4 Kg7 Na7 Qe5 Ne2 Qed4 Nec6 Rd7 Rf5 Ne7 Ng3 Qdf6 Nh5+
3r3q/B1pbnBRb/2q1PR2/K5Pq/3Nn2n/R1r2qb1/Pr3k2/3Q3Q w - - 0 1 legal: proof: f4 d5 b4 e5 h4 exf4 d3 g5 Be3 d4 Nd2 gxh4 Rc1 a5 c3 axb4 cxd4 b3 d5 b2 Rc2 b1Q Nb3 Qb2 Na1 Qxa1 Kd2 Ke7 g4 Kd6 d4 b5 g5 h5 Rc1 f5 Nf3 b4 Rb1 b3 Qc2 h3 Kd3 b2 Kc4 h4 Kb5 h2 Bd2 h3 e4 Nd7 Bg2 Ndf6 Rbg1 b1R+ Qb2 Qd7+ Kb4 Qc6 Bc3 Ne7 Ne1 f3 Qb3 f4 Bb2 f2 Qf3 f1N Qc3 f3 Qc1 f2 Nf3 Ng3 Rf1 Ngf5 Qd1 Rb8+ Ka5 Rb3 Rhg1 h1B e5+ Kd7 d6 Ke6 d7 Kd5 d8Q+ Ke4 e6 Ke3 d5 h2 d6 Rc3 d7 Nh4 Nd4 Ne4 Bf3 Bg7 Rg2 Be5 Bh5 Bg3 Bf7 Rf8 Ba3 Rb2 Bc5 Rh8 Qe8 Rf8 d8R Bd7 Rgg1 Bg2 Ba7 h1Q Ra8 Bh3 Qc8 Bf5 Qb7 Bh7 Re8 Rh8 Rg8 Qf3 Rh1 Qh5 Rg7 Rb8 Rh3 Rd8 Rfh1 f1Q Rg1 Qfe2 Rf1 Qeg4 Rf6 Qf4 Qbb3 Kf2 Qh1 Bh2 Rd3 Qff3 Qbd1 Bg3 Bg8 Qe8 Bf7 Qh8 Re3 Qc1 Rd3 Qcf4 Re3 Q4g4 Rd3 Qh5 Re3 Rcc2 Ra3 Rc3
krNn2b1/b2r1B2/bR1q2Rb/1nQ1r2B/2P1K3/2PP2Qn/3b2Qp/5b2 w - - 0 1 legal: proof: e4 g5 h4 gxh4 c3 d5 e5 a5 e6 c5 Na3 c4 Nc2 fxe6 Nb4 e5 Rh3 e4 Rh1 d4 Nc2 d3 b3 dxc2 bxc4 Nf6 Ba3 Ng8 Bb4 axb4 Ke2 Kd7 Ke3 Kc7 a4 c1B f4 h5 g4 b5 f5 Kb7 a5 e5 g5 b3 g6 h3 g7 b2 f6 b1B f7 h4 Qb3 b4 Ra2 h2 Ra1 h3 Qb2 b3 Qa2 b2 Qa4 Na6 Bd3 Bc5+ Ke2 e3 Kf3 e2 f8Q e1B Bc2 e4+ Kf4 e3 Ke4 e2 Nf3 Ne7 g8Q Qd6 Qae8 Ra7 Qa4 Nc7 a6+ Ka8 Qg4 Nb5 Qa2 Nc6 Nh4 Rd7 a7 Nd8 Nf5 Ba6 Rg1 h1N Ne7 h2 Qg3 Bd4 Nc8 Nf2+ Kf3 Bb6 Bg6 Nh3 Bf7 Bh7 Rb1 Bg8 Ke4 Be3 Bh5 B1f2 Qf5 Bh6 Qc5 Bfe3 Bf7 e1R Bh5 Kb7 a8B+ Kb8 Ra1 b1B+ Qc2 Re2 Bd5 Re1 Bdf7 Ka8 Ra4 Re2 Rb4 Bf2+ Kf3 Re5 Qb2 Bf5 d3 Bfe3 Qbg2 Bcd2 Qc7 Ba7 Qc5 Rd5 Rbb1 Bg4+ Ke4 Be2 Rgf1 Rg5 Rf6 Bf1 Rg6 Rh7 Re6 Rb7 Rg6 Rb8 Be6 Rd7 Bf7 Nd4 Rb7 Nb5 Rb6 Re5+
rbnN1r1B/8/q1B2PRn/2q1k1Kq/q1P1B2Q/1Qqq1Pp1/2rNb3/8 w - - 0 1 illegal: No possible last move
b1N2Q2/3k4/K1p2q2/Q1r1nP2/1PrNr3/rnbP2B1/nR1RR2r/2r2q2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 c5 f5 a3 fxe4 Bc4 a4 Bb3 axb3 a4 d6 axb5 dxc5 Kf1 c4 Ke2 Qd3+ Ke1 Qd8 g4 h5 Ke2 e5 f4 e3 g5 c6 g6 h3 d3 e4 b6 h2 b7 h4 f5 h3 g7 c3 Ra6 b2 Qe1 c2 Qg3 Nf6 g8Q Nd5 Qe1 Kd7 Qf1 Bg7 Ra4 Bc3 Ra1 Ra3 Qf3 Qf6 Nd2 b1Q Nb3 Rh4 Ra2 Na6 b8R Nc5 Na5 Nb3 Ra8 Bb7 Re8 Ba8 Rb2 Ne7 Qf1 Ng6 Nb7 Ne5 Nd6 Qa1 Bd2 c1N+ Kd1 e2+ Kc2 e1R Nf3 e3 Nd4 e2 Bf4 Rg4 Bg3 Na2 Nc8 Rd1 Re6 e1R Qf8 Ree4 Qe2 Rb1 Rd1 h1R Rd2 h2 Re8 Rhd1 Qf1 h1R Qf4 Nf3 Qe5 Rh2 Qa5 Rde1 Re6 Re5 Re8 Rc5 Ree2 Ne5 Qb5 Re4 Ne6 Na5 Rg2 Rf1 Rge2 Rff4 Qa6 Rec4 Nd4 Ra4 Qb6 Re4 Qa7+ Nb7 Kb3 Ra6 Qb6 Na5+ Ka4 Ra7 Qa6 Nb3 Nb5 Nd4 Ka5 Nb3+ Kb6 Rbh1 Nd4 Qd1 Qb5 Ra3 Qa5 Qg1 Ka7 Qg2 Kb6 Rc1 Ka6 Qf1
5bk1/Brb2q2/PbN5/R1nqb1P1/q1r1Q1nP/5pRb/R2bN3/4Q1K1 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 gxf4 g4 d5 cxd5 h5 g5 f5 Bh3 fxe4 Bg4 hxg4 Kf1 Kf7 d4 e5 a4 b5 h4 c5 d6 g3 d7 e3 a5 b3 d5 b2 d6 c4 a6 f3 Na3 b1Q Rh2 b4 Qd2 g2+ Ke1 e4 Qc3 b3 Qd2 b2 Qd4 c3 Nc4 e2 Kf2 e1B+ Ke3 c2 Qd1 Nh6 Nb6 Ra7 Na4 Bg3 Nc5 Be5 Kf2 e3+ Ke1 e2 Kf2 e1B+ Ke3 B1g3 Rh3 Qa2 Nd3 b1Q Nb4 Qa4 Ra2 Rb7 Qe1 Kg8 Ne2 Qa1 Bd2 c1B Nc6 Bh2 Kf2 g1B+ Kf1 Bb6 Be3 Bd2 Rg3 Ng4 Bd4 Qc7 d8R Qf7 d7 Q1d1 Re8 Rh6 d8Q Nd7 Qe7 Nc5 Bf2 Bec7 Qe4 Rf6 Re5 Rf4 Qe3 Rc4 Qe4 Nb3 Ra5 Nc5 Rg2 Bhf4 Kg1 Bfe5 Rg3 Qdb3 Bd4 Qd3 Bf2 Qdd5 Qc2 Ne3 Qa1 Ne4 Qcd1 Bh3 Qc2 Ba7 Qe1 Ng4 Bb6 Nc5 Qcb1 Bd8 Qe4 Bab8 Ba7 Bb6 Nb4 Bbd6 Nc6 Bdc7
Rn1q4/K1Q3r1/1Q1N1R2/3k3N/n1bn1bP1/qP1PBN1r/2p2n2/qq3q2 w - - 0 1 legal: proof: f4 d5 h4 a5 a4 b5 axb5 e5 c4 exf4 e3 dxc4 h5 a4 h6 a3 Bd3 a2 Na3 gxh6 Bc2 h5 Rb1 h4 Bg6 a1Q Bh5 Qa2 Ra1 Qb1 Bg4 Bb7 Bc8 Bxc8 Ke2 Kd7 g4 Kd6 d3 h5 b6 c5 b3 f5 e4 h3 e5+ Kd5 b7 h4 e6 c3 e7 c4 e8Q c2 Nb5 h2 Qd7+ Bd6 Kf3 h3 Bd2 c1Q Qh7 c3 Ra2 c2 Ra3 Ne7 Qg8+ Be6 Ke2 f3+ Ke3 f4+ Kf2 Ra7 Bc3 Nf5 Qg7 Nd4 Qc7 Be5 Ra6 Qa3 Bd2 Bg8 Rf6 Rh6 Kf1 f2 Nf3 Bf7 Rg1 h1N Be3 h2 Nd6 Rh3 Kg2 f1N Qe1 Nf5 Qb4 Nf2 Qbb6 N1g3 Re1 Nge4 Re2 Nc6 b8N Nc5 Nd7 Nfd4 Re1 Na4 Rh1 Qbb2 Ra1 Nb8 Kf1 Bg8 Ke1 h1Q+ Kd2 Qbb1 Ra2 Nb2 Kc3 Qhc1 Nf8 Qa1 Ne6 Qcb1 Ng7 Rb7 Nh5 Ra7 Qc8 Rg7 Qcc7 Qa8 Kb4 Na4 Nh4 f3 Ra3 Bf4 Ra2 Qc6 Ka5 Qce8 Ra3 Qee7 Ra2 Nbc6+ Ka6 Nb8+ Ka7 Qef8 Nb5 Qa3 Nd6 Nh1 Qa6 f2 Qb6 f1Q Nf3 Nf2 Qa5+ Qc5+ Qb6 Nb2 Rf8 Ke6 Ka8 Qb4 Ra7 Na4 Rf7 Qba3 Rf6+ Kd5 Ra6 Bf7 Kb7 Be8 Ra8 Bb5 Ka7 Bc4
6bN/qB1r1Q1b/2PR2r1/k1Pr2pn/2P1q1K1/1Q4n1/1rbb2NR/1R5r w - - 0 1 illegal: Other
2rn1q1q/4Pq2/3N3R/7r/brp1PK2/1rQqRn2/R1QP2br/1N3Bk1 w - - 0 1 illegal: No possible last move, all moves rejected
qr2B2n/Qq4N1/b3b3/k2BQqPK/5BP1/2Rbpn1r/q1PN4/2nb4 w - - 0 1 legal: proof: e4 c5 a4 a5 f4 f5 d4 cxd4 b4 axb4 Ra3 g6 Rf3 Bg7 Rf2 Be5 g4 fxe4 f5 Bg3 hxg3 g5 Rf4 gxf4 Ke2 h5 g5 d5 g4 Kd7 a5 Kc6 a6 Kb6 f6 e5 a7 b3 f7 e3 Kf3 d3 f8Q d4 Qe1 d2 Qd6+ Ka5 Qf8 b5 Qh6 b2 Bg2 b4 Qc6 d1Q+ Ne2 h4 Qc4 h3 Rg1 h2 Qd2 h1B Qcd3 Rh3+ Ke4 f3 Q2c3 f2 Qcd2 f1B Qe1 Ba6 Kf5 e4 Kg6 Nc6 Bd2 Ne5+ Kg7 Nh6 Kh7 Nhf7+ Kg7 Nh8 Nc1 e2 Qb3 d3 Qh4 e1N Kh6 N1f3 Be3 d2 Nd3 Rb8 Qf7 b3 Nf4 Bfd3 a8B Qf1 Kh5 d1B Nd2 b1Q Bd5 b2 Qa7 Qa2 Ne6 b1Q Bf4 Qb7 Ng7 Qdc8 Bc6 Qa8 Bb5 Qcb7 Be8 Qf2 Rf1 Qc5 Re1 Qcc8 Re3 Qf5 Kh6 Bb5 Rc3 e3 Kh5 Nd3 Bg6 Nc1 Be8 Ng1 Bgc6 Bd3 Bd5 Bhe4 Bg6 Nf3 Be8 Rg3 Qh2 Bc4 Bdc6 Be6 Bd5 Bd3 Qh1 Nh2 Qe4 Nf3 Qe5 Rh3#
rNn1Kb2/2q2B1q/r4Rqn/1QnP1nQ1/1pPN4/1br4P/N3R2q/1k6 w - - 0 1 legal: proof: e4 a5 g4 h5 b4 axb4 Bd3 hxg4 Bf1 f5 exf5 c5 c4 d5 Qb3 d4 Qc3 dxc3 Ba3 b3 Bb4 cxb4 Ke2 Kd7 Kd3 Kd6 Kd4 b5 f4 e5+ Ke4 Kc5 a4 g5 f6 g3 f7 c2 a5 c1R f5 b2 a6 g2 d3 b3 a7 Kb4 f6 g4 d4 g3 d5 Nd7 Kf5 e4 Kg6 e3 h3 e2 Nf3 g1N Nd4 e1N Na3 Kc3 Ne6 b1Q+ Bd3 Kb2 Ng7 b4 Rh2+ g2 Ne6 Ngf3 Nb5 Rc3 Ra6 Nh6 Ned4 Qc7 Bf5 Qa2 Be6 Kb1 Rc6 g1Q+ Rg2 Ng5 Re2 b2 Rd6 Nf5 Rb6 Bc5 f8Q Nd3 Qg8 Bf8 f7 N3c5 Ra6 Nb6 Kf6 Rb8 a8Q Bd7 Qb7 Ra8 Qb8 Nc8 Qg7 Bd6 f8N Nf7 Qg5 N7h6 Bf7 Qg4 Rc6 Ra6 Rb6 Be8 Nd7 Bf8 Qb7 Qg2 Nb8 Qgh2 Rc6 Qa4 Kg6 Qc2 Rf6 Qd3 Nd6 Bb5 Ne4 Ba4 Qb5 Bc2 Nf2 Qdg3 Nd3 Bb3 Nc1 Ka1 Rfe6 b1Q Rf6 Qe4 Na2 Kb1 Ne6 Qeh4 Nd4 Ncd6 Qg4 Bg7 Nd7 Rha8 Bg8 Nc8 Nb8 Bf8 Be6 Qgg1 Qg2 Ng4 Bg8 Qa5 Kf7 Qac7+ Ke8 Qhh7 Bf7 Ngh6 Qg6 Qg4 Qh5 Qgg7 Qg5 Qgg6
1r1kNQ2/n3nB2/2rn1b2/r2p2rP/N4qR1/q1PP4/5QB1/b1qKn1N1 w - - 0 1 legal: proof: b4 c5 a4 cxb4 f4 a5 Nf3 e5 Ra3 exf4 Rd3 b3 Ng1 Be7 Rd4 Bf8 Rb4 axb4 Kf2 f5 Ba3 b6 Ke1 h6 Bb2 Bb7 Bf6 Bf3 Bg5 hxg5 g4 Be4 Bg2 f3 Bh3 f4 Bf1 Bf5 gxf5 Qe7 Nh3 Qf6 Ng1 Qd8 h4 d5 e4 b2 d3 b5 a5 g4 f6 g5 e5 f2+ Kd2 f3 h5 b3 e6 g3 a6 b4 a7 g4 e7 g2 Be2 f1R Rh4 f2 Rh2 g3 Qc1 Rh6 Bg4 Qd6 Rh4 Nc6 Rh1 Bg7 Ne2 g1B Nbc3 b1Q Be6 b2 Na4 g2 Qe1 b3 Nb6 Qa3 Na4 Qc1+ Kc3 b1R Nd4 b2+ Nb3 Rg6 Qe5 Rg5 Qe2 Qf4 Bf5 Rfc1 Rh4 f1N Bh3 Nd2 Qf2 Nc4 Rg4 Kd7 e8B+ Kd8 Bg6 Nd6 Bf7 Rb8 a8N Na7 Nc7 Ra1 Ne8 b1Q Rh4 Bh2 Rg4 g1N Bf1 Nf3 Bg2 Qaa2 Nd4 Ne1 Ne2 Ne7 Ng1 Bh8 Qe3 Qa3+ Kd2 Bg3 Ke2 Bh4 Qf2 Ra2 Bg8 Bg7 f7 Ba1 f8Q Qc3 Nb2 Ra5 Na4 Qa3 Be6 Rg7 Bf7 Bhf6 Qe3 Rg5 Qd2 Rc8 c3 Rc6 Qe3 Rc2+ Qd2 Rb2 Qc2 Rb7 Qd2 Qbb2 Kd1 Rb8 Qf2 Qbc1+
2qb3Q/qn2n2Q/b1B1b3/1PP4n/r3rBRK/k4N1p/2PRb3/2rQn3 w - - 0 1 legal: proof: b4 c5 d4 e5 dxc5 g5 f4 exf4 h4 gxh4 a4 b5 Nd2 bxa4 Nb3 axb3 Kf2 h5 e4 f5 g4 d5 e5 Kd7 g5 Kc6 g6 a5 e6 d4 e7 h3 g7 h2 Ra4 f3 Kg3 f2 Bh3 Kb5 e8Q+ Nc6 Nf3 f1B Qde1 b2 Bg2 b1N Be3 d3 Ng5 f4+ Kh4 f3 Ra3 f2 Qf7 d2 Kg3 d1B Qd7 h4+ Kh3 a4 Rd3 a3 Qe6 Ka4 Rd7 a2 Bd2 a1Q Re7 Bde2 Nf7 Ka3 Nh6 Na5 Rb7 Be7 Bg5 Nd2 Bf4 Nf3 Qf5 Be6 Nf7 Qc8 Bh6 Bd8 Rg1 h1N Rd7 Ne7 g8Q Nb7 Qd1 Ne1 Bf4 Ng3 Ne5 Ra4 Rd2 Nh5 Nf3 Ba6 b5 Be2 Qh7 Re8 Qh8 f1R Kg4 h3 Kh4 Qe5 Bh1 Qeb8 Rg4 Qa7 Qfh7 Rg8 Qb1 Rg5 Qd1 Re5 Ng5 Rg1 Bc6 Ree4 Nf3 Rg3 Nd4 Rb3 Nf3 Rb1 Bg3 Ra1 Bf4 Rc1
1n1k1K2/2r5/1qQ2P1B/qPqP3p/n1rb4/1Rqr1N1Q/1N2b2B/1Nb3r1 w - - 0 1 legal: proof: g4 b5 a4 d5 axb5 f5 b4 g6 e4 fxe4 h4 Bh6 c4 dxc4 g5 Be6 h5 Bf8 Be2 Bg4 h6 Bh3 Bh5 Bd7 Ra6 gxh5 g6 Bh3 g7 Bc8 Rg6 hxg6 Ke2 e5 Ke3 a5 d4 c5 f4 c3 f5 c2 b6 g5 b7 c4 f6 a4 b5 g4 h7 a3 d5 g3 Qd4 g2 Nh3 g1R Nc3 a2 Rh2 a1Q Nb1 c3 Nf2 Ra3 Rg2 Ne7 g8N Bg4 Qc4 Nc8 Qe2 Nb6 Qf1 Na4 Nh1 Be2 Bd2 c1B Nf2 c2+ Nd3 Qc3 Nh6 Bb4 Nf5 Bc5+ Nd4 Qb6 Rf2 Kd8 Rf3 Rhg8 Qg2 Rg4 Qh3 Qca5 Rg3 Rc3 Rf3 Rc4 Nb2 R4g3 Kf2 Qc3 Bh6 Qca5 Rb3 Rd3 Bf8 Qc3 h8Q Qca5 Qg7 Qc3 Qgg2 e3+ Kg3 e4 Nf3 Bd4 Kh4 Bf1 Qg8 Qd2 Ne1 e2 Qf5 e3 Qfg4 Qda5 Qg2 Rc6 Qf7 Bd2 Nf3 e1Q+ Kg5 c1Q Kg6 e2 Kg7 Qc2 Qg8 Bc1 Qe6 Qed2 Kf7 e1R Bh6 Rcc3 Qeh3 Re7+ Kf8 Rc8 Qg8 Be2 Qge6 Rc5 Qc6 Qdb4 Qh2 Qcc3 Qh4 Rc4 Qh3 Na6 b8B Q4c5 Be5 Nb8 Bh2 Rc7+
1n1q4/2q2R2/1rb1P1r1/1R1B2Q1/1bBqQb1n/P2b3P/Kp1k4/q2N1n1R w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 g3 Nc3 exf6 Nb1 f5 Qb3 f4 Qa4+ Nc6 Qd1 Nb8 Bb2 h5 Bd4 Qd6 Bf2 Qd7 Qa4 gxf2+ Kd1 Ne7 g4 Ng8 Kc1 Nc6 Qc2 Nb8 Qd1 Qd8 g5 Qf6 Na3 Qf5 Nc4 Qd7 Ne5 Qd8 Ng4 hxg4 Kb2 Kd7 d4 Kd6 e4 f5 h3 c5 g6 b5 g7 b3 a3 g3 Rb1 g2 Qc1 f3 Bc4 f1Q Ka1 b4 Qd2 b2+ Ka2 f4 Kb3 f2 Qe3 f3 Ne2 g1Q Ba6 c4+ Ka2 c3 Kb3 c2 Nf4 c1B Ra1 b1Q+ Ka4 b3 Qe2 b2 Kb3 Qc2+ Ka2 Bd7 Qe3 Bc6 Ne2 Nh6 g8B Nf5 Bc4 Ra6 Nc3 Rh6 Nd1 Rg6 Bf7 Nh4 e5+ Kc7 d6+ Kb6 d7 Bb4 Qd3 Bf4 d5 Kc5 d6 Rb6 Bfd5 Qc3 Qf5 Kd4 e6 Qfe1 Qc2 f1N Qe2 f2 Qe4+ Kc5 Rc1 Qee3 Rc2 Qed4 Re2 Qc2 Re3 Qgg5 Rb3 Qc1 Rf3 Qc7 d8R Qge7 Rg8 Qed8 d7 Qde5 Qf5 Kd4 Rf8 Qee3 Rf7 Qe4 Rb3 Qd3 Nc3 Ke3 Nd1+ Kd2 Qe5 Qd4 Qe4 Bc5 Rb5 Bb4 Rf8 Nh2 Rf6 f1B Rf5 Bd3 Rf7 Qf8 d8Q Nf1 Qf6 Qfd8 Qg5 Qa1+
3nNr1R/b3q1Rn/4p3/qP2b1qq/2N5/RK1QP1nQ/b4BP1/2kn3r w - - 0 1 legal: proof: a4 g5 h4 c5 d4 cxd4 f4 b5 axb5 d3 e3 Qc7 c3 Qe5 h5 gxf4 Be2 Qxh5 Bf3 Qh6 Bd5 Qh5 Bb3 Qh2 Bc2 dxc2 Kd2 f5 b4 Kf7 b6 Ke6 b7 Ke5 c4 Ke4 Kc3 h5 c5 a5 b5 d5 c6 a4 c7 d4+ Kb4 h4 Qf3+ Kd3 Na3 h3 Qg3 f3 Qg4 f4 Ne2 f2 Ng3 f1Q Bd2 c1Q Nf5 f3 Nc2 a3 Nh6 f2 Qf3 a2 Na3 Nc6+ Kb3 Qd6 b8Q h2 Nc2 Qce1 Qg4 Bf5 c8R e6 Rb1 a1B Rb2 Nd8 Bc3 Nf6 Nf7 Nh7 Bb4 Qe7 Ba3 Kd2 Rc5 d3 Qa4 Kc1 Qd4 d2 Qd3 d1N Nd6 Qa5 Ra2+ Bb2 Bb4 Be5 Ra3 Bfg7 Rg1 h1Q Ne8 Qh5 Be1 Qhg5 Qc8 Qe2 Rh1 f1N Rc7 Qeh5 Bf2 Ng3 Qb7 Bd4 Qf3 Ba7 Qg4 Be5 Qh3 Qd6 Rg7 Qde7 Nb4 Rc8 Nd5 Rf8 Nb6 Rc5 Qd6 Bb1 Qd3 Rc2 Rh2 Re2 Nc4 Re1 Qhf5 Rh1 Rh4 Qe2 Rh6 Qeh5 Qh3 Nf6 Rh8 Nh7 Ra2 Qe1 Ra1 Qa5 Ra3 Ba2+
k3q1R1/N6Q/n1p2P2/1NR1qQ2/5Pr1/1P1qr1Bb/1nKbQ1qb/2b1r3 w - - 0 1 legal: proof: h4 f5 c4 d5 e4 b5 exf5 g5 a4 bxa4 c5 gxh4 Bc4 a3 c6 a2 Na3 dxc4 Rb1 a1Q Qb3 Qa2 Ra1 Qb1 Qf3 Nxc6 Qd1 Nb8 g4 Kd7 d4 Kc6 Kd2 Kb7 f3 e5 b3 h5 d5 a5 d6 h3 d7 c6 g5 e4 f6 c3+ Ke1 h2 g6 c2 Kd2 e3+ Kc3 a4 g7 e2 Bf4 e1B+ Qd2 c1B Nb5 a3 Bg5 h4 Na7 a2 Bh6 h3 Be3 Na6 Bg5 Qe8 d8Q Nh6 g8Q Bd6 Ne2 Nf5 Rg1 h1R Bh6 h2 Qg3 Ne3 Qg2 Nc4 Nd4 Rg8 Qa5 Nb2 Qe5 Bh3 Ndb5 Rg4 Qge2 Rc8 Bf8 Ka8 Qf5 Rc7 Bh6 Re7 Bf4 Re3+ Qed3 Bc7 Bg3 Bd6 Rg2 Rf1 Qh7 h1Q Rg1 Qg2 Qf5 Bf2 Qe2 Re1 f4 Bb4+ Kd4 Qc2 Qh7 Bbd2 Qdf5 Nd1 Rb1 a1Q+ Rb2 Qcb1 Kc4 Qa5 Rc2 Nb2+ Kd4 Qh1 Rg2 Bg1 Rc5 Bh2 Qd5 Qbg6 Qf5 Nd1 Rg1 Qg2 Kc4 Qc7 Kd4 Qce5+ Kc4 Re4+ Kd3 Re3+ Kc2 Nb2 Qfd3 Rg5 Bf2 Qf3 Rg2 Qfd5 Qf5 Qg7 Rg4 Qgd7 Bg3 Qg2 Rh4 Qdd5 Rh6 Qdd8 Rg6 Rg4 Rg8 Qd3+
1nq1n3/Nqb1QP1p/r2PRqr1/1bk1bBP1/1R3B2/8/Q1K1q3/b4Q1n w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 d5 e4 dxc4 b5 f5 Nc3 fxe4 Na2 b6 Nb4 axb4 a5 Qd4 axb6 Qd8 g4 Kd7 d4 Kd6 Kd2 c5 f4 e5 b7 b3 f5 h3 g5 c3+ Ke3 h2 f6 c4 d5 b2 b6 b1Q f7 c2 Kd2 c3+ Ke2 e3 Kd3 e2 Qd2 e1Q Be2 e4+ Kc4 e3 Kd3 Ra6 Bh5 e2 Ra5 Bg7 Bg4 Be5 Bf5 Bd7 Ra4 Kc5 d6 Nf6 Rb4 Rg8 Nf3 Ne8 Nd4 Rg6 Nb5 Qf6 Na7 Ba4 Rf1 h1N Rg1 Qf2 Re1 Qg2 Qf4 Qa2 Bd2 c1Q Qf1 c2 Bf4 Qae6 Rd1 Qc8 Re1 Qb2 Kd2 c1B+ Kd3 Nd7 b8Q Qgb7 Qc7+ Bc6 Qd8 Nb8 Qc7 Qa2 Qe7 Bcb2 Kd2 Bb5 Kc2 Qbd7 b7 Qae6 Rd1 e1B Rd2 Ba1 Re2 Nc6 b8Q Qdb7 Qa8 Nb8 Ra4 Ba5 Rb4 Bc7 Re1 Qb6 Qag2 Qbb7 Qd5+ Kb6 Qa2 Kc5 Ree4 Bec3 Re3 Qc4 Re6 Be5+ Kb1 Qce4+ Kc1 Qe1+ Kc2 Qe2+
2Qr1q2/2qP3b/8/1R3KbR/1q1p1nN1/r5rN/1P1n1B1P/rn2RQnk w - - 0 1 illegal: No possible last move
1KQ4Q/rn1P1k2/q1n2P1q/b2R1q2/2Bp1r2/4bN2/Rb1q1P1B/2n1bB2 w - - 0 1 illegal: No proof kernel
r1qK4/n2P2RP/B6b/1PRR1b2/p1QN1N2/1r1r1r2/5qbQ/nk1b1q2 w - - 0 1 illegal: No possible last move, all moves rejected
1B3nQq/RbP3qr/5qr1/n1b2P2/6rQ/2N2PN1/pN3kr1/2Rn2qK w - - 0 1 illegal: No possible last move, all moves rejected
1Qb1n3/p3qP2/2k3Pq/3r1q2/q1N1b3/rP2n2R/BQ2Rn1r/1r1Q2KN w - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 fxe6 Nb1 e5 Ra3 e4 Ra2 Nh6 Ra1 Ng8 f4 Qb6 g4 Qb7 h4 Kd8 f5 Bh6 Bf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Qc7 Ra3 Qb6 Ra1 Qd8 Kf2 d5 c4 Kd7 c5 h5 f6 e5 f7 f3 g7 a3 g6 h4 Qe1 a2 Bc4 e3+ Kf1 d3 Qc1 f2 Bb3 d4 Nd2 h3 Ne4 h2 Qc4 d2 Rb1 d1Q+ Kg2 a1R Ng3 e4 Ba4+ Nc6 Nf1 e2 Nd2 f1Q+ Kg3 e1R Qd3 e3 Bb3 e2 Qe3 d3 Bc4 Nb4 Qf2 Nd5 Rc1 Ra3 Ba2 Qe7 Nh3 Ne3 Rc2 Nf6 g8Q Kc6 Qd8 Ne8 Nc4 d2 b3 Qa1 Qd4 d1N Qb2 Rh5 Qg1 Qf5 Nf2 Qf8 Qf1 Qh6 Qg1 Rf1 Rd2 e1Q Re2 Qfb1 Kf3 Rd5 Qg4 Qf5+ Kg3 Kb5 c6 Rb8 c7 Kc6 Qh5 Qb4 Qg4 Qe7 Qgd4 Nc3 Qdd2 Rb1 Qd1 Rbb5 Rhe1 Rd2 Nh1 Rbd5 Rf1 Rc2 Rf3 Rcd2 Kf2 Ne4+ Ke1 Nf2 Rh3 Ng2+ Kf1 Rc2 Ng3 h1B Kg1 Rcd2 Qf1 Ne3 Qd1 Be4 Nh1 Qb4 Qc2 Qae5 Qcc1 Qa4 Qb2 Ba6 c8Q+ Qc7 Qb8 Qe7 Qg3 Bc8 Qb8 Nd3 Re1 Rh2 Re2 Nf2
2n1BkqB/p1KPr2q/3q2R1/4rqN1/1QPQP3/1R1r4/2r5/bbR1n1b1 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 gxh4 c4 e5 Qc2 exf4 Nc3 cxb4 axb5 d5 Qb3 d4 Qd1 dxc3 Kf2 h5 Kf3 f5 g4 c2 d4 h3 e3 h2 g5 h4 d5 b3 g6 b2 g7 b1Q d6 h3 b6 Nc6 b7 Nb4 b8Q Rh7 Ba3 c1B Qe2 Bb2 Ra2 Qd1 Ra1 Nd3 Ra2 Ne7 g8R Ba1 Rg2 Bfg7 Qb3 Bgd4 Qc3 Rb8 Bb4 Rb5 Qc1 Bd7 Rc2 Nc8 Rd2 Re7 Rg6 Kf7 Ba5 Qg8 Qb2 Kf8 Rg3 Be8 d7 Bg6 Bc3 Bb6 Bh8 Rbe5 Rc2 Qd2 Qb4 Ne1+ Kf2 f3 Bg2 f4 Rc1 Qd6 Qeb2 Bb1 Bf1 Bc5 Bd3 Bb6 Bg6 Bc5 Kf1 f2 Ke2 f1R e4 Rf3 Be8 Ra3 Nf3 Bg1 Rg6 Rc3 Qd2 Rc2 Ng5 f3+ Kd1 f2 Ke2 Rc3 Qd3 f1Q+ Kd2 Rb3 Qd5 Rb2+ Kc3 Rc2+ Kb3 Qf5 Ka4 Bc5 Rg1 h1Q Kb5 h2 Rg3 Bg1 Rd3 Qg2 Qdc5 Qgh3 Rb3 Qhh7 Qd5 Rd2 Qdc5 h1R Qd5 Rh3 Qdc5 Qd3 Kc6 Rc2 Kc7 Qd4 Qd6 Rd3 Qdc5 Qdd5 Qd4 Qd6+
r1rk1b1r/Pq2NQ2/4p1B1/nRR1b3/N1rr4/4P1rP/5K2/r1r1n1RQ w - - 0 1 legal: proof: d4 c5 g4 cxd4 c4 f5 b4 fxg4 Nh3 a5 Ng1 axb4 Kd2 b5 Qa4 h5 Ke1 h4 Qd1 b3 Bf4 b4 Bc7 Ba6 Bg3 Bb5 cxb5 hxg3 a4 d5 f4 g5 e3 g2 a5 d3 a6 b2 h3 d4 b6 e6 a7 b3 b7 d2+ Kf2 g3+ Ke2 g4 f5 Qd7 f6 Nc6 f7+ Kd8 Ra4 Na5 Ra1 Nf6 Na3 b1R Qc1 d1R Qc5 b2 Qc2 Rbc1 Qc4 b1R Qd5 Rc4 Qh5 Nh7 Qc5 Rdc1 Nf3 g1B Qc6 g2 Ra2 g3 Nb5 Ra1 Nh4 Bh2 Nc3 g1R Ng6 g2 Na4 d3+ Kf2 d2 Ne7 d1R Bd3 Ng5 Rc2 Nf3 Bg6 Be5 b8R+ Qc8 Rb5 Qb7 Qe4 Rdd4 Rc3 Rcc8 Rcc5 Rcc4 Qc6 Rgc1 Rg1 Ne1 Qf3 Bfg7 f8Q+ Kd7 Q8f4 Kd8 Qf7 Bf8 Rf1 g1R Qh1 Rgg4 Rg1 Rg3
1Qb5/1br4Q/1KPrkP2/2R3Bn/bb4R1/5P1N/1nr1pb2/nb1b1R1B w - - 0 1 legal: proof: d4 f5 b4 c5 h4 cxd4 f3 g5 Nc3 gxh4 Ne4 fxe4 b5 Qc7 b6 Qf4 e3 axb6 exf4 b5 Qe2 b4 Qd2 Ra6 Qd1 Ra8 Kd2 Kf7 c4 d5 a4 e5 g4 b5 a5 h5 f5 d3 Ke3 d2 a6 b3 a7 b2 c5 b1B g5 b4 Bb5 b3 Nh3 b2 Bf1 d4+ Ke2 e3 Rh2 e4 Qa4 d1B+ Ke1 e2 Kd2 d3 Ke3 e1B Kd4 e3 Rd2 e2 Qa3 Rh7 Ra2 Nd7 Ra1 Bf2+ Kd5 Ba4 Qa2 Ngf6+ Kc4 Bd6 Ng1 h3 Rd1 d2 Qb3 h2 Qc2 h1N Bh3 h4 Re1 d1B Qb3 Be4 Qd3 b1B Bg2 h3 Rf1 h2 Nh3 Nh5 f6 Beb7 c6 Bb4 g6+ Ke6 g7 Nc5 g8R Nb3 Rg4 Rc7 Bg5 Rb8 Ra3 Na1 a8Q Nf4 Qa5 Ng3 Qa7 h1R Qh7 Ngh5 Rc3 Nd3 Qb6 Rg1 Bh1 Ra8 Rc2 Ra5 Qa7 Rd5 Qb8 Rd6 Rc3 Bac2 Kb5 Nb2 Rc5 Bb3 Rf4 Ba4+ Kb6 Rg4 Rc4 Re4 Rd4 Re3 Rh4 Rc3 Rg4 Rc2
2Rq3b/K1PNp1Rr/2P2PN1/1q1Bb2n/1b1b1bnQ/2b5/1k1b4/3b1QR1 w - - 0 1 illegal: No possible last move, all moves rejected
BQqr1q1q/3P1rr1/knB1pQ1B/q6N/1P1K3P/n5n1/r1Rb4/n4R2 w - - 0 1 legal: proof: f4 d5 e4 b5 a4 bxa4 g4 g5 c4 dxc4 d4 h6 d5 Bf5 Nd2 Be6 d6 Bd5 exd5 gxf4 Ndf3 h5 g5 Bg7 Ne5 Bf8 Ng4 hxg4 Kd2 Kd7 Kc3 Kc8 b4 Kb7 h4 c5 d7 f5 g6 a5 g7 f3 d6 g3 Ba3 g2 Qd3 f2 Re1 e6 Be2 f1R Nh3 g1R Bd1 f4 Bc2 f3 Re2 f2 Qg3 Nh6 g8B Ka6 Qh2 Nf5 Be4 Rg7 Bg2 Ng3 Bb2 a3 Re4 a2 Bf7 a1N Re3 a4 Bg8 a3 Be4 a2 Bd5 Qa5 d8Q Nd7 Rf3 Nc2 Rf4 a1N Qe8 Nb6 d7 Na3 Kd2 c3+ Ke3 c4 Qb8 c2 Kd4 c1Q Bh7 c3 Bc6 c2 Bhe4 Bd6 Rf7 Qh6 Bc1 Rd8 Nf4 Qh8 Nh5 Bf4 Qg2 Bh6 Rh2 Bd2 Qf3 Ra7 Qf6 Ra8 Bb2 c1Q Rf8 Qc2 Bc1 Ra7 Ba8 Qc8 Bac6 Re1 Ba8 f1Q Bec6 Re5 Rg2 Reg5 Rf2 Rf7 Rg2 Rgg7 Rh2 Be1 Rc2 Qf3 Bh6 Bd2 Rg8 Rh7 Rg5 Rhg7 Re5 Qf1 Re1 Qff5 Rf1 Qfc5+ Kd3 Qcf8 Kd4 Qe5+ Kd3 Nb1 Bh1 Kb5 Bhb7 Ra2 Bh1 Ka6 Bhc6 Qa5 Kd4 Na3
3k1B1b/1n4R1/1pb2P1Q/1KnN3r/1n3RP1/q1r2P1b/3p3n/Qr1Nn1R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 d5 Kd3 e5 a4 h5 c4 b6 g4 b3 f3 b2 f6 e4+ Kd2 h3 c5 e3+ Kd3 h2 a5 e2 a6 e1N+ Ke2 d3+ Ke3 d2 Kd4 h4 c6 h3 c7 Nc6+ Kc3 d4+ Kc4 d3 a7 Na5+ Kb5 Qd6 Ra4 Bd7+ Ka6 Qa3 Nc3 b1R Rc4 Nb7+ Qa4 d1N Nb5 d2 Rc6 Nf2 Nc3 Nfd3 Rc4 Ne7 Rf4 Bg7 Nd5 Nc6 Ne2 Rh5 Nec3 Bh8 Rg1 h1B Nd1 Rc8 a8R h2 Ra7 Bg2 Bb2 h1N Kb5 Ng3 Qa6 Qc3 Qa1 Ndc5 Bd3 Bh3 Be4 Nbd8 Rb7 Nf1 Ra7 Nh2 Rb7 Rc1 Ba3 Rb1+ Bb4 Qa3 Ra7 Rb8 c8Q Ra8 Qc7 Ndb7 Qce5+ Kd8 Qg5 Rc8 Qh6 Qb3 Bc2 Qa3 Ba4 Nb3 Bf8 N3c5+ Kc4 Nb4 Bb5 Rc6 Ba4 Re6 Bc6 Re3 Kb5 Rc3 Rd4 Na5 Rc7 Nab7 Rf4 Bc8 Rh7 Bd7 Rg7 Bxc6+
rR2b3/pQ4Bb/2P3r1/Np2Q1bn/KPP5/3k1bB1/nr3R2/1q2Qbn1 w - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 dxc5 exf4 a4 g5 a5 Qxa5+ Nc3 Qa3 Bh3 Qa2 Nd5 f3 Nf4 gxf4 g5 Nf6 Bf5 Ng8 Bg4 hxg4 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 c4 Ke4 h4 f5 b3 d5 e3 g3 g6 f2 g7 f1B h5 b6 h6 d4 h7 f3 Rh4+ f4 Bb2 d3 Rg4 g2 Qe1 d2 Be5 d1B Bc3 f2 Be5 Bd3 Ne2 f1R Nd4 g1N Nc6 Nf6 g8Q Rf2 Qg7 Bd7 Na5 Qb1 Ra2 Be8 Qb7+ Nc6+ Ka4 Bh6 Rg8 f3 Bg3 Bg5 Rd2 Rg2 Rf2 Nh5 Rf8 Rg8 h8B Rg6 Bg7 B3c2 Rh8 Kd3 e4 Be2 e5 Nb4+ c6 Na2 e6 Bed1 e7 Rh2 Rg2 f2 Qe5 f1B Rf2 Bf3 Qe1 Bd7 e8Q Rg2 Q8e5 Be8 Ka3 Be4 b4 Bd1 Rf4 Bdf3 Ka4 Rb2 Rf5 Rf6 Rf4 Bh7 Rf8 Rg6 R4f7 Bg4 Rf2 Bf3 Rh8 Bf7 Rc8 Be8 Rb8 b5+
1b4rr/4Q2b/3NPnPN/1QKqr3/3nBq2/2PR2r1/3qNpp1/r2kB3 w - - 0 1 illegal: No possible last move, all moves rejected
b5r1/4B1rK/1PP2BB1/3bN2p/q4P1R/Q2nrpnq/QrN2kb1/5r2 w - - 0 1 illegal: No possible last move, all moves rejected
1r5b/3q1NrP/Kp1b1qP1/2QnbQ1r/b2P1p2/nB1RN3/3Qbk2/3R4 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Na3 f5 Nb1 f4 Qb3 h6 Qf3 gxf3 g4 Be7 g5 Ra3 g6 Ra7 Bb2 Bf8 Bf6 Ra8 Bg5 hxg5 a4 Kd7 e4 Kd6 h4 Ke5 h5 Kd4 e5 f5 a5 c5 e6 f2+ Ke2 f3+ Kd1 g4 Kc2 g3 Kb3 c4+ Ka4 c3 Kb5 c2 d6 c1B d3 Ke3 h6 g2 e7 b3 e8Q+ Ne7 d7 b2 a6 Nc6 a7 Rb8 a8Q Nd4+ Kc5 Nc2 Kb5 Na3+ Kb4 f4 Qf7 Nd5+ Ka4 Qf6 Ka5 Bd6 d8Q Bd7 Nc3 b1R Nh3 g1B Ng5 Bb2 Rh3 Ba4 Qa7+ b6+ Ka6 Rh7 Qac7 Rg7 h7 Rd1 Be2 f1Q Qcc8 Rd2 Bd1 Rh2 Bb3 Kf2 Rd1 Qe1 Qfe6 Qd2 Qf5 Rh1 Rg3 Rh5 Nf7 Be5 Nb5 Bd6 Nc7 Bbe5 Rh3 Kg2 Qdd7 f2 Rf3 f1B Re3 Nc3 Nd5 Be2 Qc5 Bf2 Rh3 Bfd4 Ne3+ Kf2 Qde6 Ncb1 Qed5 Bb2 Qdd4 Nc3 Qdb4 Nd5 Qbc3 Qe1 Qd2 Qh1 Rg3 Qh3 Qcb4 Qfh4 Nc2 Bec3 Qg4 Rgg8 Qc5+ Bd4 Qg5 Qd7 Qf5 Qg5 Re3 Bh8 Rh3+ Bbd4 Re3 Rg7 Rh3 Nb5 Re3 B4e5 d4 Na3+ Rd3 Qge7 Ne3 Qf6
2Qr4/1N2qqP1/1n3pQ1/q2pBK1P/b1B1P2R/6rn/N1Bn2bk/4q2q w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 b5 hxg4 a3 e5 b6 e4 Kd2 axb6 Ke1 b5 Bg5 b4 Be3 Ra6 Bc1 Ra8 f4 g5 a4 g3 Ra3 g4 Re3 Bh6 Rd3 Bg5 fxg5 exd3 Kd2 Ke7 h4 Ke6 c4 Ke5 g6 Kf4 g7 d5 c5 b5 c6 b3 c7 b2 a5 g2 a6 Kg3 a7 b4 e3 b3 h5 Nf6 Na3 b1Q Nb5 b2 Nf3 g1Q Bh3 Qe7 Ng5 Qa1 Bf1 b1Q Nh7 Ne4+ Ke1 d2+ Ke2 f6 Ba3 Rd8 Bb2 Nd7 Bc3 Qa5 Qc2 Nb6 Rh4 Qh1 Ng5 d1B+ Kd3 Bf5 c8Q Nd2+ e4 Qbb4 Ne6 Qf7 Nc5 Qba3 Nb7 Qae7 Qb1 Ba4 Qa1 Rb8 a8B Bd7 Ke2 d3+ Ke3 Bf5 Be2 Kg2 Kf4 g3 Qb2 Bh3 Be5 Kh2 Nc3 g2 Na2 g1Q Qbc3 Qe1 Qf5 Rbc8 Qg6 Rc4 Qc1 Rb4 Qc8 Rb3 Rg4 Bg2 Kf5+ Kh3 Rf4 Kh2 Bf1 Ndc4 Be2 d2 Bd3 d1N Bc2 Rg3 Rh4+ Kg1 Nc5 Nf2 Bb7 Nh3 Ba6 Nd2 Nb7 Kh2 Bad3 Qa8 Bc4 Qa5
1n3b2/1PBKPRQ1/P3Qr2/qnr5/2qpr2N/2n1knRb/Bp3R2/5n2 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 d4 b5 g4 h5 Na3 c5 gxh5 cxd4 Nc2 bxc4 b5 Ra7 Nb4 axb4 Ba3 Ra6 Bc1 Ra8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 g5 a4 d5+ Ke5 f5 e4 c3 h4 c2 h6 f3 a5 f2 h5 d3 a6 b3 h7 f4 b6 f3 b7 g4 h6 b2 Nh3 g3 Ra3 g2 Bg5 g1N Rb3 c1Q Bf4 d2 Bc4 f1N Ng5 f2 Ra3 Ne7 Ba2 Nf5 Qg4 d1N Nf3 Qc4 Rh2 Nd6 Qe6 Nc3 Nh4 Ndb5 Rg2 Rg8 h8Q Rg4 h7 Qa5 Qg7 Nc6+ Kf6 Kd4 h8R Nf3 e5 Bd7 Rh7 Rc8 Bh2 Rc7 Kf7 Bc8+ Ke8 Ke3 Rb3 d4 Ra3 Ng3 Rb3 f1R Rf2 Bd7+ Kf7 Ng1 Qd5 Ne7 e6 Kd3 Rh6 Rc5 Rf5 Re4 Rhf6 Nc6 e7 Rf2 Rf4 Bh3 Ke8 Nf1 Qe6 Kd2 Kd7 Nce2 Rbf3 Nec3 Rf7 Ke2 Rg4 Kd2 R3f5 Ke3 Bc7 Rf3 Rg2 Rf4 Rf2 Nf3 Rg5 Rf6 Rg3 Nb8+
1n3bqn/1Rb1kn2/2PNrb1P/q4PB1/1pp1Br2/6B1/1Q2b1q1/2N3KQ w - - 0 1 legal: proof: e4 c5 a4 h5 g4 hxg4 b4 a6 c4 f6 b5 axb5 d4 cxd4 c5 f5 exf5 Ra7 Ra2 Ra5 Rc2 Ra8 Rc4 bxc4 h4 b5 f4 e5 Kf2 g5 h5 d5 h6 g3+ Kg2 d3 a5 d4 f6 g4 a6 d2 a7 b4 c6 e4 f7+ Ke7 Rh3 d3 Qf3 d1Q Rh5 d2 Nh3 e3 Bb2 e2 Ng5 e1B Rh2 Qa5 Bg7 Qc2 Qf2 d1N Qe2+ Ne3+ Kh1 g2+ Kg1 Bg3 Be5 Nf5 Qe4 Nd6 Rh5 Bf5 Qe1 Bd3 Nd2 Be2 Nb3 Bh4 Ne4 Bf6 Nc1 Qca2 Kh2 g1B+ Kh1 g3 Bg2 Qd2 f5 Bb6 Rg5 Bc7 Kg1 Qdd5 Bf3 g2 Bg3 Rh7 Rg4 Rg7 Qc3 Rg5 Qb2 Rh5 Rg6 Rh4 Rg7 Rf4 Rh7 Kd8 Rg7 Ne7 Rh7 Ng6 Rg7 Ne8 Nd6 Ke7 Be4 Nh8 Rh7 Na6 Rg7 Rc8 a8Q Nb8 Qa7 Rd8 Qf2 Rd7 Qf3 Qd2 Nb5 Rd6 Qf1 Re6 Nd6 Rg4 Rh7 Qg5 Qf3 Rf4 Qh5 Qg8 Qh1 B8g7 Nb5 Nd6 f8B+ Ke8 Be7 Ndf7 Bd8 Bf8 Be7 B6g7 Bg5 Bf6 Rg7 Ke7 Nd6 Bd8 Kh2 g1Q+ Kh3 Bb6 Qd4 Kd8 Qc3 Ne5 Rb7 Nef7 Qb2 Qf1+ Kh2 Bc7 Bg2 Ke7 Be4 Qf3 Kg1 Qg2+
2Q3K1/2BrR1N1/1npN1rPq/b1Q5/k3pBq1/1n2PQ2/n1P1r2b/1q4q1 w - - 0 1 legal: proof: b4 d5 g4 a5 a4 axb4 Ra3 f5 Rh3 fxg4 f3 d4 e3 d3 Na3 Qd6 Nc4 Qd5 Na3 Qd8 Kf2 Qd5 Nb1 Qg5 Rg3 Kf7 Bh3 Qd5 Rg2 g3+ Kf1 Qd6 Re2 dxe2+ Kg2 Ke8 Be6 Qd8 Ba2 b3 Nh3 bxa2 Kg1 g2 Kf2 Bd7 Ng1 Bg4 h3 Bc8 Kg3 g6 Kf4 g5+ Ke4 Bd7 Kd3 g4 Kd4 g3 Kc3 Bg4 hxg4 Qd3+ Kb4 Qd6+ Kc3 Qd8 Kc4 Kd7 Kd5 a1N d4 e1R a5 b5 f4 e5 a6 h5 g5 e4 a7 h4 f5 b4 g6 b3 f6 b2 f7 h3 Qf3 h2 Qh5 Nc6 Nc3 b1Q Qd1 Re2 Nf3 g1Q Ba3 g2 Nb5 Nb3 Ng5 Rh7 Bd6 Qc8 Bf4 Bb4 f8Q Ba5 Nd6 Nb4+ Ke5 Kc6 d5+ Kb6 Ne6 c6 Ng7 Ne7 Kf6 Qg4 Kf7 Nc8 Kg8 Na2 Qf5 Rb8 a8Q Rb7 Qf1 Rf7 Qf3 Rf6 Qb7+ Kc5 Qa6 Nb6 Qac8 Kb4 Qe5 Rh6 Qc3+ Ka4 Qc5 Qge1 Rf1 g1B Rf2 h1Q Rh2 Nc4 Rh5 Qeg3 Re5 Bh2 Re7 Rh4 Ndf5 Q3h3 d6 Nb6 d7 Rh7 d8B Qhg1 Nd6 Qh6 Bc7 Qge1 Nh5 Rhf7 Ng7 Qeg1 Re8 Rd7 Re6 Qgf1 Re7 Qfg1
4Q3/1R4bn/1KpB1PpP/1RNnq3/1b6/4n3/1k1bP1rB/qn1B1rQr w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Ng1 f3 Nc3 f4 Ne4 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kf7 a4 Kf6 h4 Ke5 h5 Kd4 d3 Kc3 a5 b5 d4 c6 a6 b3 f6 b2 d5 b1Q a7 b4 d6 b3 d7 g3+ Ke1 b2 Nh3 g2 Kf2 g1B+ Ke1 Ne7 Nf2 Qe8 d8B Nd5 Ra2 Qa1 Nd3 b1N Nc5 Nd7 Ra5 Qe5 Bh3 f2+ Kf1 g6 Rb5 Bg7 Ba3 Nf8 Bc7 Nh7 Be6 Rab8 Bb4+ Kb2 a8Q c3 Qd4 Rb7 Qe8 Bh2 Kg2 f1R Qg1 c2 Bf5 c1B Bc2 Bd2 Bd1 Bg3 Rh2 Bf2 Kf3 Ra7 Bd6 Ra4 Ba5+ Bb4 Bac7 Ra5 Rb7 Be1+ Rf2 Bd2 Bb8 Qg5 Ke4 f3 Kd4 Qe5+ Kc4 Rb5 Rg2 f2 Rg5 Ra5 Rf5 Ra3 Bbc7 Rg3 h6 Rg2 Qe6 Rb8 Qe8 Qe3 Bh2 Qe5 Bd6 Ra8 Rf3 Rd8 Ra3 Rb8 Ra5 Ra8 Rab5 Ra3 Bf4 Rh3 Bg3 Rh1 Bh2 Qg5 Kd4 Qe5+ Kd3 Qe3+ Kc4 Re1 Nb3 Qe6 Kd4 f1N Kc4 Nfe3+ Kd4 Bbc3+ Kc5 Qe4 Bhf4 Rf1 Bh2 Nc7 Kb6 Bb4 Nc5 Qd4 Qf8 Qe5 Qe8 Ncd5+
1Q4K1/2RN1b1P/b2qR2P/6qn/1p2r1nP/1n4p1/1r1N2kb/Q1RqB2q w - - 0 1 illegal: Other
Nb2bQq1/1bB3Np/Q2N2k1/1p1rq2r/r4P2/P4nnR/1Rr2nP1/5K2 w - - 0 1 legal: proof: e4 d5 h4 a5 c4 c5 cxd5 f5 b4 fxe4 h5 axb4 h6 c4 Bd3 gxh6 Bc2 h5 Bb3 cxb3 Bb2 h4 Ba3 Bf5 Bc1 Bc8 d4 Kf7 f4 b5 a3 e5 d6 b2 d5 h3 d7 b3 d6 h2 Ne2 e3 Qd3 e4 Bd2 Ra4 Ng3 e2 Ra2 Nf6 Kf2 e1N Bc3 e3+ Ke2 Bb7 Nf5 Na6 Bd4 Nh5 Bf6 Kg6 Bd4 Nc5 Kf1 e2+ Kf2 Ng3 Be3 Nf3 Nc3 b1B Nd5 b2 Nb6 e1R Qe4 Rc1 Na8 Rc2+ Bd2 Be7 Qc6 Qg8 d8Q Bf8 d7+ Bd6 Qf8 Nce4+ Ke3 Nf2 d8N Ba6 Nf7 Bb7 Qcc8 Bc7 N7d6 Bb8 Rc1 h1R Ng7 Rh5 Rh1 Ra6 Rh3 Ra4 Ra1 Ba2 Ba5 b1Q Bc7 Bf7 Ra2 Be8 Rb2 Qba2 Qd7 Qad5 Qc6 Qg5 Qa6 Q8d5 Qe7 Rf8 Qd8 Rf5 Qe7 Qg8 Qf8 Nfe4 Kd3 Rfc5 Ke3 Qe5 Kd3 Rd5+ Ke3 Ned2+ Kf2 Nh4 Kg1 Nde4 Bb6 Nf2 Bc7 Ngh1 Kf1 Nf3 Rb3 Qb2 Rb4 Qe5 Rb2 Ng3+
B3B3/3K2P1/1q3B1k/1NP1Rbq1/1N1b3r/pQ1rb2r/2P2p1Q/1b1nnn2 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 d4 e5 dxc5 exf4 h4 g5 h5 d5 Ra3 d4 Rah3 d3 Rh4 gxh4 Ba3 d2+ Kf2 Qd5 Nc3 Qd7 Qe1 d1Q h6 Qb1 Qd1 Qd8 Ke1 Qc1 Nd5 Bxh6 Nc3 Bf8 Kf2 f5 Kf3 Kf7 e4 Kg6 g4 a5 e5 h5 e6 h3 b5 h4 e7 h2 e8B+ Kh6 b6 h3 b7 Nf6 Qd2 Qb6 Qd8 Nc6 b8Q Ne5+ Kf2 f3 Kg3 f2 Kh4 f4 Qe7 f3 Bf7 Nd5 Qbc7 Nd3 Be8 Qg5+ Kg3 Ne3 Qce5 Nd1 Bb4 a3 Bg2 a4 Nd5 a2 Qb7 a1B Bc3 a3 Nb4 Bf5 Ne2 Ne1 Nd4 Rd8 Nb5 Rd3 Qf4 Bb2 Bf6 Bd4 Qf7 Bg7 Qb3 Be3 Rg1 h1R Qd6 f1B Qb8 f2 Ba8 h2 Qc7 Bh3 Qf4 Nf3 Re1 Bg2 Re2 Ne1 Qb8 Bd5 Kh3 Bd4+ Qg3 Rh7 Re5 Be3 Qf4 Rg1 Qg3 h1N Qg2 Ng3 Qh2 Qg6 Kh4 Nf1 Kh3 Rh8 Kh4 Rh1 g5+ Kh7 Qb2 Ba2 Qb3 Qf7 g6+ Kh6 Qc3 Bb1 Qb3 Be4 Kh3 Qe7 Kh4 Rg1 Kh3 Rg3+ Kh4 Rh3+ Kg4 Bb7 Kf5 Qed8 Nd6 Be4+ Ke6 Rh7 Bh4 Qg5 Kd7 Bf6+ g7 Bg6 Re7 Bc3 Re5 Bcd4 Nb5 Bf5+ Qe6+ Qg6 Bf6 Qg5 Ke7 Rh8 Qb3 Kh7 Bd7 Kg6 Bdc6 R8h4 Bd7 Qa6 Be8+ Kh6 Kd8 Qb6+ Ke7 Bh7 Kd7 Bf5+
1r1kqq2/3B2P1/p2b1rPQ/1Q6/4n2n/1bN1P1bQ/rB1n1p2/n1K1RR2 w - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 d4 cxd4 Nc3 g5 hxg5 bxa4 Ra3 dxc3 Ra2 Qb6 Ra1 Qd8 b4 d5 g4 h5 g6 f5 g7 h4 g5 d4 g6 f3 c5 f4 c6 h3 c7 a3 b5 a2 b6 c2 Kd2 h2 b7 f2 Bb2 c1B+ Kc2 d3+ Kc3 d2 Kc2 f3 Be5 Ne7 Rb1 a1N+ Kc3 Nf5 Qc2 d1Q Rb3 Na6 b8Q Nc5 Qb1 Bf4 Kb2 Q1d6 e3 Ne4 Bh3 f1N Rb4 Bg3 Rb3 Nfd2 Rc3 Be6 c8Q Nh4 Kc1 Bb3 Ne2 f2 Rc5 a6 Re1 h1R Nc3 Qc6 Qd3 Bd6 Qdb5 Rf8 Bd7+ Ke7 Bd4 Rf6 Rh5 Qf8 Qg5 Bgf4 Qh6 Bg3 Qb5 Rb8 Rg5 Bgf4 Rg2 Bg3 Rgg1 Qa8 Rgf1 Qc6 Bh3 Qce8 Qg4 Kd8 Qf3 Ng2 Bd7 Rh5 Qg4 Nh4 Qh3 Rhf5 Bc5 Rd5 Ba3 Rd4 Bb2 Ra4 Na2 Ra3 Nc3 Ra2
4qk1N/1Q1Pbr2/1pn2nn1/2b1R3/QQ3b2/N1Br2p1/B3P1KP/1n2q2q w - - 0 1 illegal: No possible last move
1bbq3k/1np3N1/1R2BnK1/b1Qr3B/1Pr3r1/Nq2PpPB/r4q1Q/8 w - - 0 1 legal: proof: c4 g5 b4 e5 f4 exf4 h4 d5 a3 dxc4 Ra2 a5 Rb2 Bd6 hxg5 Bf8 Rb3 Bf5 Bb2 Bc8 Bd4 Bh6 Bb6 a4 Ba5 axb3 a4 Bg7 Bb6 Bf8 a5 Be7 a6 Bf8 Ba5 b6 Qc1 bxa5 Qc2 Be7 Qd1 Bf8 Kf2 f5 Kf3 Kf7 d4 Kg7 g6 h5 d5 h4 a7 b2 e3 c3 g3 c2 d6 c1R d7 a4 Bd3 a3 Be2 a2 Qd6 a1B Bc4 h3 Be6 h2 Qd2 Rh5 Qf2 Rc4 Qc2 Bc5 Qc1 Nf6 Qc3 Nc6 Na3 b1Q Nh3 Na5 Ng5 Bb6 Rd1 h1R Rd6 Qb3 Bf7 Rc5 Ne6+ Kh8 Ng7 R1h4 Be6 Rc6 Qc5 Nb7 Bf7 Bd4 Re6 Qg8 d8Q Rg4 Qdd5 Ba5 Qc2 Nh7 Qdc5 Nf6 Qh2 Qd8 Be8 Rd6 Bd7 Rd5 Rb6 Rhh4 Bb5 Bc3 Bf1 Bb2 Bh3 Bd4 Ke2 f3+ Kd2 Rb8 a8B f2 Ke2 f4 Kf3 Nh7 Ke4 f1Q Qg2 Qf2 Qh2 Rd7 Kf5 Nf6 Nh5 f3 g7+ Kh7 g8B+ Kh8 Ng7 Rd6+ Be6 Rd7 Qc4 Bc5 Qc3 Rd5+ Qe5 Rc4 Kg6 Bd4 Beg4 Bc5 Bh5 Rhg4+ Qg5 Bd4 Rd6 Ba7 Rb6 Nc5 Bc6 Nb7 Bd7 Ra8 Bf5 Bb8 Be6 Ra6 Rb5 Rad6 Rb6 Rd2 Kf5 Ra2 Kg6 Rgd4 Qb5 R6d5 Qc5 Rg4+
7Q/1P2q3/p1nQb1Br/3N3K/rr1n1RN1/1kP2p2/qPRq4/brb1R3 w - - 0 1 illegal: No possible last move, all moves rejected
1R6/P4b2/2p2B1b/nrBN3r/1P3QbK/r6P/pN1bkN1q/2n2bQb w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 h5 g4 hxg4 a3 d5 cxd5 a5 Bg2 a4 Bh3 Qe7 Bf1 Qd8 Ra2 b6 Bg2 b5 Be4 Qe7 Bc2 Qd8 Bb3 axb3 a4 b2 a5 Qe7 Ra1 Qd8 Ra4 bxa4 Kf2 Kd7 d4 Kd6 e4 g5 h3 f5 a6 g3+ Kg2 f3+ Kf1 g2+ Kf2 a3 Kg3 a2 Qd2 f4+ Kh2 g4 Na3 b1B Nc2 f2 Na1 f1B Ne2 g1R Ng3 f3 Nc2 f2 Ne3 Bh6 Nd1 Nd7 Qf4+ Ne5 Nb2 Bc4 Be3 f1B a7 Rb8 Bf2 Ne7 Be3 Nc6 Bf2 Kd7 d6 Ke6 d7 Nd3 e5 Kd5 e6 Na5 e7 c6 e8N Qc7 d8B Rb5 Bf6 Nc1 Ne4 Rg3 Rg1 Ra3 Rg2 Bb3 Kg3 Bbd3 Kh4 g3 Be3 Bg4 Nf2 Be4 Rg1 Bh1 Rg2 Qe5 Nc7+ Kd6 Rg1 Bf7 d5 g2 Bb6 Bc4 Rd1 g1B Rd2 Bf1 Bc5+ Kd7 d6 Rh7 Qe3 Qh2 Qf4 Rh8 Nd5 Ke6 d7 Rh7 Qb8 Kf5 d8Q Rh8 Qdb6 Rh7 Ne4 Bge3 Nf2 Bef4 Re2 Bd2 Re8 Rh8 Qg3 Rh7 Rb8 Rh8 Nfd3 Ke4 Qg1 Kf3 Nf2 Ke2 Qc7 Re8 Qcg3 Re5 Qf4 Rh5+
K2b1bRb/b1Q4n/1q4p1/1Q2rP2/2n1BpRn/1n6/B2r1PbP/1N1B1k2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 Bb2 d5 Be5 dxc4 g4 Na6 Nc3 Kf7 Nd5 Bh6 Nf4 Bg7 Ng6 Bf8 Bf4 gxf4 g5 Ke8 Nh4 Qd4 g6 Qd8 g7 Nb8 Ng6 hxg6 Ke2 Rh3 d4 Kd7 a4 Kc6 d5+ Kc5 a5 b5 d6 e5 d7 e4 a6 e3 a7 c3 Kd3 b3 Ke4 b4 Ba6 b2 Ne2 b1N Rg1 c2 Ra4 c1B Ng3 b3 Bd3 b2 Ne2 Bb7+ Ke5 Nd2 Nd4 b1N Qb3 e2 Qe6 e1B Ne2 Bb2+ Nc3 Be7 Be4 Re3 Qa2 Na3 Ra6 Nc6+ Ke6 Kd4 Qb3 Nf6 g8B Nf3 Bf7 Nh7 Be8 Nh4 Nd1 B1b4 Bf7 Na5 Rg4 c5 Nc3 c4 Nb1 c3 Qa4 c2 Qb5 Rd3 Bd5 c1B Qa4 Be3 Bb3 Bg2 Bd1 Rd2 Qb3 Rb8 a8B Rb5 Be4 Bg5 Ra7 Bf8 Rb7 Qc7 d8Q+ Rd5 Qd6 Bd8 Qb5 Qc5 Kd7 Ba1 Qb2+ Kc4 Qb6 Bh8 Qb5+ Kd4 Bg8 Qa7 Kc8 Qa6 Qdc6 Re5 Ba2 Nb3 Kb8 Nc4 Rg7 Qa5 Bd5 Kd3 Qc7 Ba7+ Ka8 Qa6 Rg8 Qb6 Bc2+ Ke2 Bd1+ Ke1 Be4 Kf1
2q1b3/1n1BB3/2PrnprQ/PNb1k1p1/b5Q1/2n2KnP/2R3N1/2nbN3 w - - 0 1 legal: proof: f4 a5 g4 c5 d4 cxd4 b4 axb4 f5 Nh6 f6 exf6 Bf4 Ng8 Bd2 Ra5 Bc1 Ra8 a4 h5 g5 Qc7 g6 Qb6 gxf7+ Ke7 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 Kf2 Kd6 c4 b5 e4 g5 a5 g3+ Ke2 b3 h3 b4 c5+ Ke5 c6 d5 Qd3 b2 Qc2 b3 Qd2 g2 Qe1 d3+ Ke3 d4+ Kf3 d2 Qf2 d1B+ Qe2 d3 Be3 d2 Kf2 Na6 Kg3 Rh6 Qd3 Ne7 Na3 b1N Bc5 b2 Nb5 Bd7 Qf3 Rg6 Be2 Nc3 Qg4 b1N Kf3 Ba4 Rh2 Ned5 Be7 Qc8 Bc4 Ndc7 Be6 Be8 Bd7 Bg7 f8Q Ne6 Qh8 Ne2 Qh6 d1B Nc3 Bf8 Nd5 Kd4 Nf4 Nbc3 e5 Nac5 Bd8 Nc7 e6 Nb7 e7 Ng3+ Nge2+ Ke5 Nd3+ Kd6 Ne1 g1N+ Kf2 Bdb3 Nf4 Ne6 Nfg2 Ke5 Ke3 N1e2 Kf3 Bf7 e8N Nc1 Nd6 Be8 Nb5 Bc5 Ne3 Bd1+ Re2 Qc7 Be7 Rd8 N3g2+ Nge4 Bc8 Rd6 Bd7 Qc8 Na7 Bdb3 Rc2 Ng3 Nb5 Nc3e2 Rd2 Bd1 Rc2 Nc3+
nr2nrBB/1P6/2q1r3/2rr1QBQ/bk1p3b/1p3bPN/P2R1R1K/2b5 w - - 0 1 legal: proof: c4 a5 e4 f5 h4 g5 d4 gxh4 b4 c5 Na3 cxd4 exf5 b5 Nc2 bxc4 b5 Bg7 Nb4 axb4 Qc2 Bh6 Qd1 Bf8 f4 e5 Kf2 Ke7 g3 Kd6 Kg2 Kc5 b6 h5 b7 d5 f6 c3 f7 e4 f5 b3 f6 c2 Qg4 d3 Bd2 c1B Rb1 e3 Qf3 h3+ Kh2 e2 Bf4 e1R Qd1 h4 Qh5 d2 Bd3 d1R Qg6 Bd7 Bf1 Qc8 Ba6 Kb4 Qh7 Ba4 Be2 Be7 f8B Qc6 f7 Nf6 Bg4 Na6 Qc2 Nc7 Ne2 Nfe8 Qf5 Rb8 Bg7 Na8 Rf1 Rf8 Ng1 Re6 Bh8 d4 Be2 Rd2 Qh5 Rc2 Rf2 Rc5 Bg5 Rd5 Kh1 h2 Rb2 Bf6 Kg2 h1B+ Kh2 h3 Bc4 Bf3 Rbd2 Be7 Bh6 Bh4 Bg5 Rg8 f8Q+ Rc5 Qf5 Rf8 Rg2 Rd5 Kh1 h2 Nh3 Bd1 Rgf2 Bg4 Kg2 h1R Ba6 Rg1+ Kh2 Bf3 Bb5 Rge1 Bc4 Rc5 Bd5 R6e5 Bf7 Red5 Bg8 Re6
1NR2Qb1/P5QB/r7/1b1k1pK1/1p1nb1P1/1NrrB1n1/P3q1r1/Q5br w - - 0 1 legal: proof: c4 c5 b4 e5 f4 exf4 h4 a5 d3 g5 Nd2 gxh4 Rb1 Qc7 Rb3 Qd8 d4 cxd4 Rc3 dxc3 bxa5 Ra6 Nh3 Ra7 Ng1 Ra8 Kf2 Ke7 Kf3 Kd6 Kg4 b5 e4 f5+ Kh5 h3 g4 b4 a6 c2 Rh2 f3 Re2 h2 Rf2 h1R+ Bh3 Qe7 Rf1 f2 Ba3 c1R Qe2 Rc3 Nb3 Nc6 Qb2 Nd4 Ne2 Nf6+ Kg5 h5 Rc1 f1B Bg2 h4 Qa1 h3 e5+ Ke6 c5 d5 c6 h2 c7 Ne4+ Kf4 Bd7 c8Q Ng3 Qc7 Bb5 Rc2 Qe8 Qg7 Bc5 Kg5 Rg1 Be4 h1B Bc1 Rg2 Be3 Rh6 Bf3 Rd8 a7 Rd7 Nec1 Bfc4 Na5 Rd6 Be4 Ra6 Nc6 Nf3+ Kf4 d4 Bg1 d3 Re2 d2 Nb8 d1R Nb3 Rdd3 Rc2 Rgh2 Bc6 Qe7 Be8 R6h4 Rc1 Rcc2 Bg6 Bf2 Bh7 Nd4 Qb2 Qe8 Qa1 Ba8 Kg5 Rg2 Na5 Rh1 Nb3 Re2 Rc3 Bcd5 Rc7 Rc2 Rc8 Rcc3 Qg6+ Ke7 e6 Kd6 e7+ Be6 Qg7 Bg8 Qf7 Bf3 Qg6+ Kd5 Qg7 Qf8 e8Q Qe7+ Qf6 Qe4 Qef8 Qe2 Q6e7 Be4 Qeg7 Be1 Be3 Bf2 Rc7 Bg1 Rc4 Ke6 Rc8 Kd5
nk2r2B/3Q1n2/1p3N1b/1P1B2qB/bPrR4/K1Q2b1r/n2Pp1R1/br6 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 dxc4 a4 g5 axb5 gxh4 Nc3 f5 Nd5 fxe4 Nb6 axb6 f4 Kd7 g4 e5 b4 c5 f5 Kc7 g5 h5 f6 c3 g6 c2 f7 c4 g7 c3 Bg2 e3 Ba3 c1N Bd5 e4 Bc6 c2 Rb1 h3 Nf3 h2 Rb3 h4 Be8 h3 Bb2 Na6 Rd3 Bf5 Rb3 Na2 Bf6 c1R Be7 Nh6 g8B Rc4 Bc5 e2 Be3 Qg5 Rg1 h1B Bd4 h2 Ne5 Bf3 Nd7 h1R Qa1 Kc8 Re3 Nc7 Qc3 Rb8 Bg7 Na8 Nf6 Bg6 Bc6 Kc7 Bd5 Re8 Rd3 Kb8 Rd4 Rh7 Kf2 Bf5 Rg2 Rb1 Bh8 Bg6 Qe3 Nf5 Qb3 Nd6 Qc3 Rh3 Bh7 Bf5 Bg6 Bh6 Bh5 Bg6 f8Q Bf5 Qe7 Nf7 Qc1 Bh7 Ke1 Bg6 Qd7 Bf5 Rd3 Bh7 Kf2 e1B+ Kf1 e3 Qb2 Bfe4 Ke2 Bg3 Qc1 Be5 Kd1 Bc3 Kc2 e2 Qa3 Bb2+ Kb3 Bf3 Rd4 Ba1+ Ka4 Bd3 Qc3 Bc2+ Ka3 Ba4
Rr5r/RP1Q1B2/1P1K2b1/1bbbr1N1/2Pn4/pQn4p/3NN1q1/2n1k2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 d5 b4 f5 e4+ d3 c3 h5 g5 a5 g6 f3 g7 f2 b6 h3 b7 f4 b5 a4 b6 h2 Ra3 f3 Rb3 d4 Bd2 a3 Be3 h4 Bg2 f1B Bg5 d2 Rb2 Kd3 Bf6 h3 Bh4 f2 Rb4 Ne7 g8N Be6 Qc1 d1B Nd2 Nd7+ Kd6 Nf5+ Kc6 Nc5 e5 Rb8 Bd5 Qg5 Nh6 Nb3 Ne2 Qg2 Ra4 Bc2 Nf7 Bb4 Rg1 h1R Qd1 Nc1 Ra7 Ke3 Bd8 d3 Be7 Nd4+ Kc7 Bb1 Ng5 Bf7 Bb3 Bd5 e6 Bc2 Bc5 Bb1 Nde4 d2 e7 Bd3 Qc2 d1N Nd2 Bg6 Qa2 Kd3 Kd6 Ke3 e8Q+ Kd3 Qc8 Ke3 Nf4 Bb5 Ne2 f1R Qd7 Kf2 Bc4 Ke1 Qb3 Bde4 Bg8 Bd5 c4 Nc3 Bf7 Qh2+ Rg3 Qg2 Re3 Rf5 Re8 Re5 Re7 Rbf8 Re8 Rfg8 Rea8 Rge8 Qb1 Rb8 Qb3 Bxc5+
2n1r3/kP4p1/NR1r3P/1qP2b2/Qb2B1QK/b1Q2r2/5pb1/n1B1Rrn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 c4 a5 h4 f5 e4 d5 b4 Kd7 e5 Kc7 e6 Kb7 h5 f4 h6 f3 e7 d3 e8Q f2+ Kd2 d4 b6 a4 b5 a3 Qc2 a2 Qg6 Qd7 Bb2 Na6 Qg4 Bb4+ Bc3 Nc5 Kd1 d2 Ke2 d1R Kf3 d3 Bb2 d2 Ne2 g1R Bg2 Ne7 Nf4 Nb3 c5 Rgf1 Rb1 a1B Nd3 Ra3 Qc3 Re8 Bc1 Bb2 Rg1 Kb8 b7 Na1 Kf4 Rb3 Kg5 B2a3 Be4 g2 Kh4 Ka7 Rh1 g1N b6+ Ka6 b8Q Qb5 b7 Bf5 Qbe5 Nc8 Qed4 Ka7 Qdc4 Rde1 Q4d4 d1B Qdc4 Bf3 Q4d4 Ba5 Nb4 Bg2 Na6 Rd1 Qa4 Rd7 Qc2 Rf3 Qc3 Rd6 Rb2 Qc6 Rb5 B5b4 Rb6 Nh3 Rg1 Qb5 Rh1 Rfd1 Re1 Ng1 Re3 Rf1 Re2 Ne7 Re1 Nc8
QNRRr3/PnK1R2r/Qr1b3q/2b5/rp2P3/P1n1k3/b1Bp4/2nB2b1 w - - 0 1 illegal: No possible last move, all moves rejected
b4KN1/2bNrr2/1Qn3Rn/P2qp2q/N1P2r2/3PB1n1/1Qrn1p2/3k1B2 w - - 0 1 illegal: No possible last move, all moves rejected
q1n5/1b1Kb3/4bP2/r1bNP1PN/2pq1R1N/2np1QQ1/n3B2B/2k1rn2 w - - 0 1 legal: proof: e4 b5 a4 d5 h4 e5 b4 g5 d4 gxh4 c4 dxc4 axb5 exd4 e5 f5 Ra2 Nf6 Re2 Ng8 Re4 fxe4 Ke2 Ke7 f4 Ke6 g4 Kd5 g5 c5 b6 h5 b5 a5 b7 a4 f5 d3+ Ke3 a3 Kf4 Kd4 f6 e3 b6 h3 Qe2 c3 Qg2 e2 Bd2 e1B Qh2 a2 Qg3 a1Q Qg2 c2 Qe2 c1N Qh2 c4 Bg2 h4 Qg3 h2 Bc6 h3 Qg2 Na6 b8N Nb4 b7 Ne7 Na6 Be6 b8Q Nca2 Qg3 Bf2 Bf3 Nc3 Nc5 Nba2 Be2 Ra5 Qb7 Nc8 Qbf3 Be7 Ne4 Qd5 Be1 Qa8 Bd2 Kd5 Bc1 Bfc5 Bd2 Kd4 Be1 Nb5 Nbc3 Rh5 Nd5 Nbc3 Bd2 Qb8 Qfg2 Bg4 Qe1 Nd1 Ne3 Qa8 Ng3 Bd7 Qef2 Rh6 Bc1 Kc3 Nf3 Bg4 Bd2+ Kb2 Rf1 h1B Qfg1 Rh4 Nh5 h2 Be1 Kc1 Bg3 Rh3 Nh4 Qd4+ Qe4 Bg2 Qf2 h1N Qg1 B4f3 Kf5 Rh2 Ke6 Bh3+ Qf5 Bb7 Nd5 Rg2 Bh2 Ng3 Qf2 Rg1 Kd7 Bg4 Qg2 Rh1 Rf3 Re1 Qf2 Nf1 Qg3 Bh3 Qfg4 Ndc3 Rf5 Bg2 Rf4 Be4 Q3f3 Bh7 Qg1 Bg8 Qgg3 Be6+
2Q1rq2/n3nQ2/RBr1PBNP/p4qbb/Rq4nq/5BPk/p3K3/2n5 w - - 0 1 legal: proof: f4 b5 c4 h5 a4 bxa4 f5 g5 g3 d5 cxd5 h4 f6 h3 Nc3 exf6 Nb1 f5 Qb3 f4 Qf3 g4 Nc3 gxf3 Nd1 Kd7 Ne3 Ke8 Ng2 hxg2 h4 Ke7 b4 Kf6 e4 a5 d4 c5 b5 c4 d6 c3 d5 a3 h5 Kg5 b6 Kg4 h6 f5 e5 f2+ Ke2 c2 b7 f3+ Ke3 a2 d7 f4+ Kd3 Ra6 d6 Be7 Rb1 Rc6 Kd2 Bg5 Rh5 Ne7 Ne2 g1Q Rb6 Re8 Bg2 f1Q Ra6 f2 Bb2 f3+ Nf4 c1N Bc3 Qb6 d8Q Qh2 d7 Qh4 Qc7 Qb4 d8B Qfb5 Kd1 f1N Ng6 f2 Bf3+ Kh3 e6 Nh2 Bg7 Qf5 Bf6 Bd7 Qf4 Ng4 Bb6 Rc3 Qc7 Nbc6 b8Q Na7 Qbc8 Bb5 Qf4 f1Q+ Kd2 Qf2+ Kd1 Q2c5 Kd2 Ba4 Ke1 Bd1 Qfc7 Nd5 Qf7 Qf8 Kf1 Ne7 Ke1 Bf4 Rg5 Rc6+ Kf1 Nf2 Rg4 Bg5 Rd4 Qbb1 Ra4 Qbb4 Bd5 Bh5 Bf3 Qd6 Ke1 Ng4 Kf1 Qd4 Ke1 Qb4+ Kd1 Nb3 Ke2 Nc1+
5n1K/1b1nr3/P1k1q1R1/3nP1PQ/b2QbrN1/1q1np1b1/1Rp2B2/1N2Q3 w - - 0 1 legal: proof: c4 a5 e4 f5 d4 g5 b4 axb4 h4 gxh4 Be2 e5 Bf3 d5 cxd5 exd4 e5 Be7 Be4 fxe4 Nc3 Bc5 Nb1 Bf8 Ke2 Kd7 f4 c5 g4 h5 a4 b5 d6 e3 Kd3 b3 Ke4 h3 Kf5 b4 Kg6 h4 a5 h2 f5 c4 f6 c3 f7 d3 g5 d2 a6 b2 Qe1 d1B Bd2 b3 Ra3 h3 Qf1 Qb6 Ne2 Nf6 Nd4 Bb7 Nc6 Rh7 Rg1 h1B Na5 h2 Nc4 Bhe4+ Qf5+ Kc6 d7 h1N d8Q Nf2 Rf1 Nfd7 Nd6 Nd3 Ne8 Bb4 f8Q Re7 Qf7 Nf8+ Kg7 Nbd7 Be1 Bc2 Bf2 Ba5 Nd2 b1N Ra2 b2 Nf6 Ba4 Ng4 c2 Kh8 Nc3 Qh5 b1Q Rb2 Nd5 Qfh7 Qa2 Nb1 Qbb3 Qh1 Be1 Q7h5 Ra7 Q1h4 Rf7 Qa5 Rf4 Qb4 Qaa3 Qd4 Qd6 Rh1 Qe6 Rh3 Rf6 Rf3 Rf7 Rf6 Re7 Qg3 Rf7 Rg6 Rf4 Bg1 Bf2 Qgh4 Bg3 Bf2 Ra8 Qh1 Re8 Qe1 Re7
2bq1QbQ/1QN1p1q1/5n2/2rPK2R/2p1N1kB/3B1bP1/nr2P3/1b2q2q w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 f5 b4 fxg4 Ra3 a5 Rb3 axb4 Nc3 cxb3 Bg2 g5 Nh3 g3 Bb2 g4 Bc1 Bg7 Ng1 Be5 Bf1 g2 Nb1 g3 Nf3 g1Q Ng5 g2 Nf3 Bg3 hxg3 Kf7 Ng5+ Kf8 Nf3 Ke8 d4 Kd7 Kd2 Ke6 Kd3 Kf5 a5 b5 d5 h5 Kd4 c5+ Kd3 b2 a6 c4+ Kd4 b3 a7 b4 Qe1 h4 Qd1 h3 Qd3+ Kg4 Ng5 h2 Ke5 Na6 f4 Nf6 f5 Rb8 Nc3 b1Q a8Q b2 Be3 b3 Qd2 Qe1 Ne6 b1B Qd1 b2 Ne4 Nb4 Bg5 Na2 Bh4 Qc5 Qd2 g1Q Qb7 Qce3 Nc7 Qg5 Qc2 Qg7 Qc3 Bc2 Bg2 b1B Qd2 Rg8 Qh6 Rf8 Qh8 Bd3 Qa6 Rb2 Qb7 Bdc2 Nc3 Qgf1 Be4 Qg2 Bd3 Re8 Rg1 h1B Ne4 Qh2 Rf1 Bf3 Rh1 Qg2 Rh3 Qgh1 Rh2 Ba4 Rh3 Bad7 Rh2 Be6 Rh3 Nh5+ f6 Bg8 Rh2 Qh7 f7 Nf6 f8Q Qg7 Nb5 Qda5 Nc7 Rd8 Qe8 Rd6 Qf8 Rc6 Bg5 Qb6 Rh5 Rc5 Bh4 Qd6+ Kd4 Qd7 Ke5 Qd8
2N5/2Pn4/2n2qBK/R4P2/8/prbrnnpP/1Q1BbQ2/Q1qR1bbk w - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 g4 b5 axb5 h5 Nc3 hxg4 Ra4 dxc3 Ra3 Nf6 Ra1 Ng8 Ke2 Kf7 Ke3 Ke6 Kf4 d5 Kg5 Ke5 b4 a5 c5 c2 b6 a4 b5 e3 f4+ Ke4 f5 e5+ Kg6 e2 c6 e1N b7 a3 c7 d4 b6 d3 h3 g3 Rh2 d2 Bc4 g2 Qh5 d1B Nf3 g1B Bb2 c1Q Nh4 Ne7+ Kf7 g5 Bc3 g4 Rd2 g3 Ng2 Be2 Rd1 Nec6 Kg6 Bg7 Nh4 Nd7 b8Q Ba6 b7 Nf3 Qa7 Rb8 Rd5 Rh7 Qh6 Qf6+ Kh5 Rhh8 Qf2 Rhd8 Ng6 Bf1 Ba2 Bae2 Ne7 Bh8 Qg6 Kf4 Qh7 e4 Ra5 e3 Qg7 Qf8 Kh6 Bd3 Kh7 e2 Bg8 e1N Rc5 Qe3 Bd5 Nc2 Ba2 Bde2 Kg6 Re8 Qh2 Ng5 Kh6 Kf3 Rd1 Qc1 Nc8 Re3 Ra5 Rd3 Bd2 Ne3 Bf7 Qe7 Qa1 Bc3 Bg6 Qf6 Qf2+ Ke4 Qe1 Kf3 Ra8 Kg2 Qf2+ Kh1 Ra5 Ra8 b8Q Nf3 Qb4 Rb8 Qbb2 Rb3
nq1r3K/P1bPqR1p/1b5n/5pQQ/6NB/1Nb2q1P/N2r4/1R2b1qk w - - 0 1 illegal: No possible last move
2n1B2r/k1B2bbn/P1q2P1b/1Bp1R3/2pq1qnP/4n3/N3Qn2/N3KQ2 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Nh3 f4 Ng1 dxc6 Na3 c5 Nb1 c4 a3 Ra5 a4 Rf5 gxf5 b5 Ra3 Qd7 Rd3 Qd8 Rd6 h6 Rg6 h5 Rg4 hxg4 e4 Kd7 d4 Kc6 h4 Kb6 e5 g5 d5 c5 e6 f2+ Kd2 b3 f6 b2 d6 g3 d7 b4 e7 g2 e8B g4 a5+ Ka7 a6 b3 Bd3 f1N+ Ke2 g3 Rh2 f3+ Ke1 f2+ Ke2 Bg7 Be4 Ne7 Nh3 g1B Bf4 g2 Bd6 Ne3 Qd3 f1N B8g6 Ng4 Bg3 Nfe3 Nc3 b1Q Kd2 b2 Nf4 Qf1 Be8 b1Q Na2 Qbb6 Qe2 Qc6 Ne6 Qf4 Nd4 Bb7 Rh3 Nc8 Nb3 Bf2 Bc2 g1N Na1 Ba8 Rh2 Nh3 Ba4 Bb7 Qf1 Be1+ Ke2 Bd2 Bb5 Nhf2 Rh3 Qcd6 Bh2 Bd5 Rf3 Q8c7 d8Q Qcc6 Qe7+ Nd7 Bg3 Qd4 Rf5 Q6f4 Re5 Bf7 Qe6 Bc1 Ke1 Nf8 Bh2 Nh6 Qg4 Nh7 Qge2 Nhg4 Rd5 Qg5 Bc7 Qgf4 Re5 Qf5 Nc2 Nd5 Na3 Bch6 Nc2 Qff4 Na1 Nde3
K2bQr1q/2BR1QQP/1Nqq1P1n/k2b4/3qR2P/4bn1N/1pp5/2n3q1 w - - 0 1 illegal: No possible last move, all moves rejected
5NQK/1B1b4/q2k1b1N/q5P1/1nb1P2b/Q1Pp1Rbr/p1bb1R2/Qr6 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 e5 Kd2 e4 Ke1 fxg6 Qd2 g5 Qd1 g4 h4 g5 Bd2 e3 Bh3 exd2+ Kf1 g3 Kg2 Nh6 Kf3 Bd6 Bf1 Bf8 Kg2 Ng8 Nf3 g4 Na3 Na6 Nb1 Nc5 Ng1 Ne4 Na3 Qc7 Nb1 Ng5 hxg5 Qd8 b4 Ke7 f4 a5 e4 h5 b5 d5 f5 a3 b6 d3 f6+ Kd6 f7 a4 b7 a2 Qf3 d1B Nd2 h4 Qe3 d4 Ndf3 d2 Qe2 a3 Rc1 a1B Ne5 a2 Nc6 d3 Rb1 Bd7 Ne7 Bf6 c3 Bc2 Qf3 d1B Rh2 Qa5 Nh3 Rb8 Ng6 Ne7 Nf2 Nc6 Rb6 B8e7 f8Q Bb3 Qg8 Bc4 Nf8 Bc2 Qd1 Rh6 Rb2 Nb4 Qa1 Bd8 Rb1 Bc7 Re1 Rh8 Re3 Rh6 Rf3 h3+ Kg1 g2 Be2 Rd8 b8Q Rh5 Qb5 Rb8 Qa4 Rh8 Qa3 Rh6 Nd1 Rh5 Kf2 g1B+ Kg3 Be3 Rg2 h2 Rgf2 Bd2 Ne3 h1Q Kf4 g3 Bf1 Rb5 Bh3 g2 Be6 g1B Bd5 Rh3 Bb7 Be1 Ng4 Bb8 Re2 Bgf2 Nh6 Bh4 Ref2 Qg1 Rh2 Qgb6 Rhf2 Rf5+ Kg4 Rb5+ Kh5 Qba6 Kg6 Bd2 Kh7 Rb6 Qb3 Nd5 Qa4 Rb1 Qa3+ Nb4 Qc1 Be5 Qa3 Beg3 Kg7 Bc7 Kh7 Bd8 Kh8 Bf6+
2B2K1n/ppR5/qqnk1n2/2nnnP2/R1PPr3/N1b2r2/Q6B/1Q2nB2 w - - 0 1 illegal: No proof kernel
r2Q4/n1R2P2/P1pKP3/3Q1N1q/BN2p2b/rq6/1qqqRq1k/4Rr1b w - - 0 1 legal: proof: d4 a5 c4 e5 b4 exd4 h4 axb4 h5 b5 h6 b3 Bf4 gxh6 Be3 h5 Bc1 h4 e4 f6 e5 b4 e6 Nc6 Bf4 Na7 Be5 Nb5 cxb5 fxe5 Ke2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kf4 g4 h5 a4 b2 f3 Kg3 f4 h3 a5 h2 g5 d3 b6 b3 b7 h4 b8R d2 a6 h3 g6 Qh4 f5 Be7 Qc1 d1Q+ Bd3 Qc2 Na3 b1Q f6 b2 Bb5 Bb7+ Bc6 Qh5 f7 Bh4 Nc4 Ne7+ Kc5 d5 g7 d4 Rd8 d3 Nf3 d2 Nd4 d1Q Nb3 Nc8 Ra3 Qdd2 Qd1 Na7 Re1 h1Q g8Q+ Kh2 Rd7 Qf1 Na1 Qff2+ Rae3 Qb3 Qc8 Q1c2 Ba4 b1Q Qd8 Bh1 Re2 c6 Rc7 Qcb2 Nd6 e4+ Nf5 Rh7 Qd5 Q1c2+ Kd6 Rg7 Re1 Rg3 R3e2 Q3a2 Rg1 Ra3 Rge1 Qcb3 Nc2 Qab1 Nb4 Q1c2 Ne3 Bg2 Qa1 Qdc1 Qd3 Kg3 Kd7 h2 Qd2 h1R Nf5+ Kh3 Qd4 Qce3 Qad1 Rf1 Qd6 Qeh6 Q1d5 Bh1 Qe7 Qhf4 Qd8 Qfd2 Kd6 Kh2
4q1R1/KP1n3n/qQB3p1/rrB1q1Q1/r1Q2NP1/1b2qqp1/P1N4k/2q5 w - - 0 1 illegal: No possible last move
3nn2K/1P3Q1N/3Q1n1P/3n3Q/R2b3p/1Bb4P/n1Bpb1kn/rR4nr w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bh3 h5 Bf4 h4 Bf1 Qa5+ Bd2 Qg5 Bc1 Qh5 gxh5 e5 Bd2 e4 Bg2 e3 Kf1 exd2 Bh3 Ba3 Kg2 Kf8 Kf3 Ke8 Bf1 Bb4 Kg2 Bf8 Kf3 f5 e4 Nf6 e5 Ba6 Nc3 Bc8 Ke2 Ng8 Ne4 fxe4 b4 Kf7 c4 Ke6 f4 Kf5 b5 Kg4 b6 a5 h3+ Kg3 b7 g5 e6 d5 f5 g4 h6 e3 Kd3 e2 e7 e1N+ Ke2 d3+ Ke3 d4+ Ke4 a3 Ke5 a4 e8Q a2 f6 a3 f7 Bg7+ Kd6 Nf3 f8Q Nf6 Ke7 Rg8 Kf7 Nbd7 c5 Nh2 Qa4 d1N c6 d2 c7 d3 Qe6 Ne8 Qd5 Ne3 Qaa5 d1N Qc6 d2 Qc1 Ndf6 Qa4 Ned5 Qab4 N1c3 Bd3 Kg2 Qbd6 g3 Qb2 Bg4 c8B Be2 Rd1 a1N Be6 a2 Nf3 Nb3 Bc2 a1B Rb1 Nc5 Ng5 Na2 Qbe5 Bc3 Nh7 Ra3 Qh5 Ra8 Bd7 Ne6 Bda4 Nd8+ Kg6 Bh8+ Qg7 Rf8 Bab3 Rf7 Rhf1 Rc7 Qf7 Bd4 Bd1 Rc1 Rf4 Ra5 Bdc2 Rh1 Re4 Bc3 Qff8 Ba6 Qb4 Nd7 Re5 Nc1 Qhf3+ Kg1 Qg7 g2 Re4 Be2 Qh5 Ra1 Qf7 Bhg7 Rc4 Bgd4 Qd6 N7f6 Ra4 Kf2 Qb4 g1N Qd6 Nec7 Kg7 Na2 Kh8 Ne8 Qg5 Kf3 Qgh5+ Kg2
4b1nq/Bn4r1/QP1NbNq1/1p1p1QR1/2bN3k/2b1qP1B/Kq3P2/2b5 w - - 0 1 illegal: No possible last move
b5Q1/1r3q1p/2qR4/r3K2P/qk1b3b/1qbRP1Qn/3pBqP1/1B3Q1N w - - 0 1 illegal: No possible last move, all moves rejected
r2Q1Nb1/3Qn3/2Pq1rqp/b1b1QqN1/2KP4/b3r3/pB1P3R/R2qk3 w - - 0 1 illegal: No proof kernel
nb1r1NB1/2q5/1RPp2PQ/R2bqk2/1N3r2/Q7/RbK1pbPq/3r1q2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 e4 f5 f3 b5 Kf2 bxa4 Ke1 Nc6 f4 fxe4 f5 Ne5 Bf4 gxf4 Ra2 Nf7 Ra1 Ng5 hxg5 Qb6 Nf3 Qc7 Ng1 Qd8 Kd2 Kf7 b4 a5 c4 h5 c5 e5 f6 Ke6 b5 f3 c6 d3 b6 e3+ Kc3 d2 g6 f2 b7 e4 b8Q a3 f7 a4 Rh2 h4 Qd6+ Kf5 Ne2 a2 Qe1 d1R Kc2 h3 Qb8 a3 Qc3 Bd6 f8R+ Nf6 Kb3 Qc7 Qb6 Rh4 Qb2 Rf4 Ng1 e2 Qc2 e1B Rh8 Nd5 Qcc5 e3 Bc4 f1Q Nc3 e2 Kc2 Bf2 Nf3 Rb8 Rb1 a1Q Ne5 a2 Qa3 Ba6 Qb7 Nb6 Bg8 Na8 Nd5 Rd8 Rb6 Bc4 Nb4 Bd5 Rh1 h2 Rh5+ Kf6 Rg1 h1Q Qba7 Qh4 Qc1 Qh2 Qaa3 Qd4 Qd2 a1B Qdc1 Rf3 Qh6 Bb2 Rg5 Rf4 Rh5 Bc5 Rg5 d6 Nd7+ Ke7 Rh1 Qe5 Nf8 Kf6 Rh5 Qg3 R1h3 Qh2 Rc3 Bcd4 Rc5 Bde3 Ra5 Bed4 Rh3 Kf5 Rb3 Bc5 Rba6 Ba7 Rb6 Ba1 Rb2 Bb8 Ra2 Bb2
2b2r2/3p1r1n/q1P3KQ/N1P3Pq/3R1q1p/1r4RR/n5rB/q2n1QNk w - - 0 1 legal: proof: f4 c5 c4 e5 h4 exf4 b4 cxb4 d4 a5 c5 g5 e3 gxh4 c6 Bc5 Bc4 a4 Bb3 axb3 dxc5 Ra6 Bb2 Ra7 Bc1 Ra8 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Ke5 g4 h5 a4 b5 e4 b2 g5 b3 a5 h3 a6 h2 a7 b4 Ne2 Qb6 Qe1 Qa6 Qd2 Nf6 Na3 b1Q Nc2 b2 Ra2 b3 Ra3 Nh7 Ra2 Qa1 Re1 b1N Bb2+ Nc3 Qe3 Rf8 Ncd4 Nd1 Qg1 h1Q+ Qg2 h4 Bc1 b2 Rg1 b1R Ra4 Rb3+ Be3 Qh2 Qf1 Qh3+ Rg3 Qg4+ Kg2 Qh5 Kh3 f3 Bg1 f4 Bh2 f2 Ng1 f3 Rb4 Kf4 e5 Q6a2 e6 Na6 e7 Rb8 Rc4 Nb4 e8Q Qa6 a8R Na2 Qg6 Rb2 Rc3 R8b3 Qh6 Ke4 Rb8 Rc2 Rb4 Rcb2 Qb5 f1R Qc4 Rff2 Qf1 Rg2 Rd3 f2 Rc4 Rf7 Rcc3 Rb8 Nb3 Kf4 Na5 R2b3 Qe1 f1Q Rd2 Qf2 Qf1 Bb7 Rd5 Rbf8 Rce3 Bc8 Red3 Qe2 Rdf3+ Ke4 Kg4 Qfd4 Kh5 Qf6 Rg4+ Qf4 Rh3 Qf3 Kg6 Ke3 Qc4 Kf2 Rgg3 Q3g4 Ne2 Kf1 Rd4 Rg1 Rgd3 Kg2 Rdg3+ Kh1 Qb5 Rg2 Ng1 Qgf3 Qf1 Qh5+
2bKrQ2/Brp1PB2/R3P3/1Q3Pq1/n1rB1N1p/6nq/2q2nq1/1nkN4 w - - 0 1 illegal: No possible last move
4B2b/qP1nnp2/q3RQ2/1R3Q2/4b2n/rb1knPq1/2qp2P1/2RN2BK w - - 0 1 legal: proof: d4 e5 h4 exd4 b4 g5 a4 gxh4 Rh2 a5 Rh3 axb4 Rh1 b3 Nd2 c5 Ra2 b5 Ra3 b2 Rf3 c4 Ra3 b4 Ra1 Ra5 Nb3 Rb5 axb5 cxb3 e4 Ke7 c4 Kd6 f3 Kc5 Kf2 b1B b6 d5 e5 h5 e6 b2 e7 h3 e8Q b3 b7 d3 Bh6 Kd4 c5 h4 c6 d2 c7 h2 Bg7+ Qf6 Bh6 h3 Ra3 Bg7 Ra2 Ne7 Qc1 d1N+ Kg3 Ne3 Ne2+ Kd3 Qc5 d4 Qd8 Be6 c8R Nd7 Rg1 h1Q Qcc7 h2 Ra4 Qg6+ Kh4 Qg3+ Kh5 Rf8 Qc1 Bh8 Rc6 Bd5 Qa5 Ra8 Rb4 Ra6 Qac5 Ra3 Rb5 Bc2 Qb6 b1Q Re6 Qa2 Qb1 b2 Qc6 Be4 Nc3+ Kd2 Nd1 d3 Bg7 Bb3 Bd4 Qa1 Be2 Qa2 Rf1 Qg1 Bc5 h1N Bd4 Qd6 Kh4 Ng3 Kh3 Ngf5 Qb6 Qf2 Rg1 Qc6 Kh2 Nh4 Kh1 Qg3 Qd8 Qa6 Bb6 N7d5 Qf6 Ne7 Re1 Nc2 Bg1 Ne3 Nf2 Qa7 Rc1 Qa6 Nd1 Qa7 Qa1 b1Q Qae5 Qac2 Bf1 Qc4 Qef5 Qbc2 Rd5 Qca6 Rb5 Ke1 Be2 d2 Bf1 Qe5 Bc4 Qg3 Bd5 Ke2 Bc6 Nc5 Bd7 Kd3 Be8 Nd7
bn3k2/2p3rp/Q2PBN2/2Q1b1BK/nn2RbQr/r4P1b/2P4r/3rR3 w - - 0 1 illegal: No possible last move
2r1b2n/R1QrBN1P/2nP2R1/3n2Q1/2n4n/N1pk2p1/1r3P1r/3K1nbQ w - - 0 1 legal: proof: g4 f5 c4 h5 e4 fxe4 b4 d5 b5 dxc4 b6 Qd7 Bd3 Qf5 gxf5 axb6 Be2 b5 Bf3 b4 Bg4 hxg4 d4 Kd7 h4 Kd6 a4 Kd5 f6 e5 f7 g5 h5 b5 a5 c5 h6 e3 a6 Ke4 a7 c3 d5 b3 Bb2 b4 Ra3 c2 Rh3 c1N Bd4 c4 Ra5 e2 Rf3 b2 Ra4 b3 Qc2+ Nd3+ Kd2 e1N Kd1 c3 Rf6 g3 Rc6 g4 Ne2 g2 Qd2 g1R Rg6 Nc2+ Qe1 Bd7 Rb6 Be8 Rf6 Bd6 f8Q Ncb4 Ra6 Ne7 Ra4 N8c6 Na3 b1N Rf7 b2 Rg7 Ng6 Rc7 Rc8 a8Q Nd2 Bb6 Nf1 Be3 b1R+ Bc1 Rb2 Qa5 Rh7 Qg7 Rh1 Qf8 Nh8 Qf6 Rh2 Qg5 Rd7 Ng1+ Kd4 h7 e4 Nh3 e3 Bd2 Nde5 Ra7 Nc4 Qc7 Kd3 Bc1 Be5 d6 Nd5 R4a5 Nfd2 Qh1 Nf1 Qgd8 Bf4 Ng5 Bg3 Bd2 Bf4 Nf7 e2+ Kc1 e1N Kd1 Be5 Bg5 Ng2 Be7 Nh4 Rc5 Rh3 Rb5 Bh2 Rb4 g3 Rba4 Ncd2 Rg4 Bg1 Rg6 Nc4 Bf8 Rb7 Qg5 Rb2 Be7 Rh2
Q2B1q2/2N2rrP/2pQ1KBb/qp2n1r1/5P1Q/2R5/p2PbN2/1qbn2k1 w - - 0 1 illegal: No possible last move, all moves rejected
Qq2q3/1pPnn3/1Bq2Pb1/pkb3N1/N3r3/K2RP3/bn2R1p1/Q5rQ w - - 0 1 legal: proof: b4 f5 d4 e5 g4 exd4 a4 h5 gxh5 f4 b5 f3 b6 cxb6 e3 b5 Bd3 bxa4 Be2 fxe2 Kd2 a3 h4 e1Q+ Kd3 a5 Kc4 d5+ Kb3 Kd7 f4 Kc6 c4 g5 f5 a2 f6 g4 c5 d3 h6 d4 h5 g3 h7 g2 h6 d2 Ka4 d3 Qg4 d1N Nc3 d2 Qd4 Be6 Nf3 Qe8 Bb2 Ne7 Ka3 Nd7 Na4 Kb5 c6 Qg3 Re1 Qgb8 c7 Bb3 Bc3 Nb2 Re2 d1B Ng5 Bdc2 Rd1 Bg6 Rd3 Ra6 Bb4 Re6 Bc5 Re4 Bb6 Bbf7 Qc3 Bc4 Qe1 Bb3 Qb1 a1Q+ Qa2 Qc1 Qa1 Rg8 h8Q Qc6 h7 Ba2 Qb1 Rg7 Qa1 Rf7 Qg8 Rg7 h8Q Rh7 Qh1 Rh2 Qa1 Rh1 Qgh7 Rg1 Qh3 Ne5 Qc8 Nd7 Qh1 Qa7 Qb8 Qa8 Qa7 Qab8 Qa8 Nd5+ Bc5 Bd6 Qh8 Ne7 Qh1 Rb4 Ba7 Bc5 Bb6 Re4+
1k3r1R/5n2/bN1nb2P/3pRQn1/r2B4/pr2q1Kn/2QPP1Qp/3b2B1 w - - 0 1 legal: proof: g4 e5 h4 b5 a4 bxa4 b4 g6 f4 exf4 g5 Bc5 h5 Qe7 h6 Be3 c3 Bc5 b5 Bb4 Bh3 Kd8 Bg4 Qf6 cxb4 Ke8 Bh5 Qd8 Nc3 gxh5 g6 Nc6 g7 Nb8 Nd5 Ba6 Ne7 Bc8 Ng6 hxg6 Kf2 c5 b6 d5 b7 Kd7 b5 Kc7 Qe1 a5 Rh4 f5 Rg4 f3 Rg5 c4 Ra2 a3 Ra1 h4 Nh3 a2 Qg1 f4 Rg2 c3 Rg4 g5 Qg3 a4 Qg2 a3 Qf1 c2 Qg2 Nd7 Qh2 Ne5 Rb1 a1N Qg2 Nf6 g8Q Qe7 Qg7 Nf7 Ng1 h3 Qf1 h2 Rb4 Nb3 Qe1 Ne8 Qf8 Ned6 Qg7 Qe3+ Kf1 f2 Kg2 f1B+ Kh1 f3 Rbe4 f2 Bb2 c1R Re5 Rb1 Qd1 Nd4 Qc2+ Kb8 Nf3 Rf8 Qf6 Ra4 Qff5 Bh3+ Rg1 Nb3 Bd4 g4 Rf1 g3 Rc1 Bg4 Kg2 Bh5 Kh3 g2 Kg3 g1N Rf1 Nh3 Rg1 Nc5 Rg2 Ka7 b8B+ Ka8 b6 f1B Bc7 Rb3 b7+ Ka7 Bd8 Bg6 Bb6+ Kb8 Rf2 Ne6 Bbc5 Kc7 Rg2 Neg5 b8Q+ Kd8 Qb4 Kc7 Qbc3 Be6 Qce4 Kb8 Qcc2 Qc3 Bg1 Qe3 Bd4 Bc8 Kh4 Bh7 Rg4 Ba6 Kg3 Ne6 Rg8 Neg5 Rh8 Bg6 Kh4 Bg2 Qeg4 Bf1 Qg2 Bh7 Ne1 Nf3+ Kg3 Bg6 Nd3 Bh7 Qe6 Be4 Nb2 Bg6 Qc6 Bc2 Qf5 Bd1 Qcc2 Nhg5 Qf2 Bh3 Nc4 Bg4 Qg2 Nh3 Qf6 Bf5 Nb6 Be6 Qff5 Nf3g5+
2B3K1/4N3/Pr1r3p/2r2bn1/Pk3p2/Rbn1Qp1N/qQ1PbbRR/6n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 dxc4 f5 c3 Bb2 cxb2 f6 exf6 Nh3 f5 Ng1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 a4 b5 g4 h3 e4 b4 a6 h6 g5 h2 g6 f3 g7 b3 Bd3 Be6 Nc3 b1N Bc2 b2 Qc1 Nd7+ Kf4 Ngf6 g8R Rb8 e5 Rb6 Bd3 Bb3 e6 Kb4 e7 Nh7 e8Q Bc5 Qe3 Ne5 Rf8 Qd5 Rd8 Ng5 Ra8 Rd8 Nd1 Rdd6 Be4 Nc3 Ra3 b1B Rg8 c6 Qe1 Bf2 Qe3 Bd3 Qa1 Be2 Nh3 Qc4 Qb2 Qd5 Rg1 h1B Rg2 Qf7 Rh2 Bg2 Ng1 Bh3 Bb1 Bg4 Nh3 Qh7 Ra8 Nb5 Nc3 Ngf7 Ne4 c5 Nf6 c4 Nd7 c3 Nf6 c2 Ng1 c1R Ng8 Rc5 Ne7 Nc3 Rf8 Bc4 Rh8 Nc6 Rg8 Nd4 Rg6 Bh3 Rgg2 Ng5 Bc2 Bg4 Nh3 Bb5 Be4 Bd3 Bd5 Nde2+ Ke5 f4 Rg1 Rc4 Be6 Rc5+ Kf6 Bc4 Rg3 Qb1 Kg7 Ng1 Bc8 Be2 Rgg2 Qa2 Kf8 Bf5 Kg7 Nd5 Kg8 Nc3+
1r1rQ2B/Kpb1r1n1/3nNQ2/2Q1P3/2pB4/3Pnp1q/k3P3/bb2R1Rn w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 dxc4 b4 axb4 Nc3 g6 Ne4 Qg5 Bh3 Qd8 Ng3 h5 Nf5 gxf5 g5 Be7 Bg4 hxg4 Qc2 Bd6 Qd1 Bf8 Kf2 Kd7 Ke3 Kc6 a4 Kd5 h4 c5 h5 c3 a5 Kc4 h6 c2 a6 Kb3 a7 c4 h7 f4+ Ke4 g3 g6 f5+ Kf3 g2 g7 Nf6 g8Q Nbd7 Ra6 Nb6 Ra2 Ne8 Ra4 Qd3+ Kf2 f3 Ra2 f4 Qg3 Rb8 a8Q Nd5 Qf1 Bf5 Rh4 Ng7 Ra1 Bd6 Qa5 Ne3 Bb2 c1B Rb1 Bc7 Rh2 Rhd8 Bc3+ Bb2 Nh3 g1R Qc5 Ka2 h8B b3 Rh1 Ba1 Bd4 b2 Re1 b1N Qg6 Na3 Ng5 Nb5 Qe8 Nd6 Ne6 Rg5 Rg1 Qa3 Qh3 Bb1 Qh4 Rf5 Qhe7 Rf7 Q7f8 Re7 d3 Qa4 Qff7 Qd7 Qf6 Nef5 Kf1 f2 Kg2 f1N Kf3 N5g3 Kf2 Nb5 Kf3 Nh1 Ke4 Nd6+ Kd5 f3 Qb5 Ra8 Kc5 Rac8 Qb6 Ne3 Qb5 Bb8+ Kb6 Bc7+ Ka7 Rb8 Qc5 Qc8 Nf8 Qg4 Ne6 Qh3
2n1kbK1/rpn1b2R/1N1pB2P/5QP1/1r6/p2B4/1rr2Pbn/qQBN4 w - - 0 1 illegal: No proof kernel
N3nq2/kr1p4/PR2Pq1n/2B1p3/K2N2bb/P2R1QbQ/4bR1p/r4b2 w - - 0 1 illegal: No extended proof kernel
1b1Q4/n1pB1K2/2nP2Qr/1p2qN1n/1r1b4/4R1nP/q1kP1np1/1R1NQ3 w - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 c4 axb4 g5 d6 g6 Be6 Bb2 Bd5 cxd5 hxg6 Bc3 g5 Bd4 g4 Bc5 dxc5 Kf2 Ke7 e4 Kf6 a4 Ke5 d6 Kd4 e5 g5 a5 f5 e6 b5 a6 g3+ Kf3 g4+ Ke2 f3+ Ke1 b3 e7 g2 Kf2 g3+ Ke1 c4 e8Q f2+ Ke2 f4 Kf3 b2 Kg4 f3 Kf5 c3 Kg6 c2 a7 c1N h3 Qg5+ Kf7 Rh6 Rh2 Nd3 Qee1 Qe5 Ra3 Ne7 Nc3 b1Q Nd5 Nc8 Qc1 Bg7 Ne7 Qa2+ Rb3 Nc6 Be2 f1N Ke8 f2 Qb1 Kc4 Nf3 g1B Nh4 g2 Nf5 Ng3 Bg4 f1N Rh1 Nf2 Re3 Nh5 Kf7 Nfg3 Nd5 Bh8 Nc3 Bf6 Qe4+ Kb3 Qf3 Bg7 Nd1+ Kc2+ Qd5 Qeb2 Qe6 Bd4 Kf8 Qc3 Qg6 Qc5 Ke8 Qe5+ Kf8 Rb8 a8Q N8a7+ Qe8 Rb6 Qad8 Ra6 Qe6 Ra3 Qg6 Rb3 Kf7 Nc8 Bf3 Rb4+ Bd5 Ba7 Bc4 Bb8 Be6 Qa4 Bd7 N8a7 Ra3 Nfe4 Rb3 Bd4 Rf1 Qa6 Rff3 Qa1 Rb1 Nf2 Re3 Qa2+
3n3b/k1n4q/2QR3N/3q2NK/BPNp3b/Pnp1P1R1/nr2r1p1/1Q5r w - - 0 1 legal: proof: f4 a5 g4 b5 c4 bxc4 f5 h5 f6 hxg4 Nc3 a4 Nd5 a3 Nc3 exf6 Nb1 f5 Bg2 f4 Bh3 Qg5 Bf1 Qd8 d3 c5 b3 c3 Bb2 axb2 Bg2 c4 Nf3 c2 Ng1 c3 Bh3 Ba6 Bf1 Bc4 dxc4 Ra3 Qd5 Ra6 Qd1 Ra8 Kf2 c1N h4 g5 e3 f5 a3 d5 c5 Kd7 c6+ Kc7 h5 Kb6 h6 f3 Kg3 d4 h7 f4+ Kf2 g3+ Ke1 g4 c7 g2 Kf2 g3+ Ke1 Nf6 c8Q Ne8 Qf5 Nc6 Qfc2 Ka7 Qdd2 f2+ Kd1 f3 Nh3 g1B Bb5 f1N Qdd3 f2 Qe4 Nc7 Nd2 b1Q Nc4 Qd5 Ng5 Rb8 Ba4 Na2+ Ke2 Nd8 Kf3 Nd2+ Kg4 f1R Rh6 Re1 Kh5 Bf2 Rd6 Bg7 Qe8 Be5 Qc6 Re2 Qb2 Qc2 Rg1 Be1 Qb1 g2 Rf1 Bh4 Rf3 Re8 h8N Qh7+ Rh6 Rb6 Nhf7 Bh8 Rh3 Rf8 b4 Nb3 Rg3 Rb7 Nfd6 Rff2 Nf5 Rb2 Qd3 Rfe2 Qb1 Qg7 Rf6 Qh7+ Nh6 Rb6 Qd7 Re6 Qc6 Re7 Rd6 Rf7 Qe8 Rf1 Qc6 Rh1
1NB4q/4b1b1/6PB/n7/qp1PnBr1/pp1Q1P2/1r2q1rR/k1rQ2NK w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 b4 gxh4 Nf3 c5 Ng1 cxb4 Ba6 b3 Bb5 Kf7 Bf1 Ke8 c4 b5 c5 d5 Ra2 b4 Rc2 Bd7 Rc4 Bb5 axb5 dxc4 d4 Kd7 g4 Ke6 f3 Kd5 Kf2 a5 Kg2 h5 g5 e5 c6 h3+ Kh2 c3 b6 c2 g6 e3 b7 e4 c7 e2 c8Q e1Q Bg5 c1R Qc3 e3 Bf4 a4 Bd3 h4 Qcc2 e2 Bf5 Qe8 Bg3 Nf6 Bf4 Bg7 Qc7 Nc6 b8B Kc4 Qc8 Ne4 Na3+ Kc3 Qb7 Kb2 Bfc7 Ka1 Nc4 a3 Qb6 Na5 Ne5 Qa4 Ba7 Rac8 Bd8 Rc2 Qb7 Rb2 Bg5 Rc8 Bd8 Rcc2 Qa8 Qf1 Nc6 e1B+ Ne2 Bd2 Qb7 Bg5 Qb5 B5f6 Bc7 Be7 Bab8 Qe1 Bc8 Qd2 Kg1 h2+ Kg2 Qe3 Qbd3 h3+ Kf1 Qd2 Be5 Qe3 Bf6 Qd2 Bf4 Qe3 B6g5 Rd2 Rg1 h1R Nb8 h2 Kg2 Rdc2 Rf1 Rd2 Rf2 Rg1+ Kh3 Rg4 Ng1 Rh4+ Kg2 h1Q+ Kf1 Rg4 Rg2 Qh6 Rh2 Qh8 Bh6 Rh4 Rf2 Rdc2 Kg2 Rg4+ Kh1 Rd2 Rh2 Rdg2 Bd7 Qf2 Bc8 Qe2
3B4/r1N2QP1/1Bp1pKP1/2R1NpB1/3r1n1q/4n2n/P1q1b2Q/b2qnk2 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 axb4 f5 g5 hxg5 e6 f6 Qe7 Na3 Qd8 e4 Qd3 e5 Qd4 Bd3 Qd8 Bf5 Kd7 Rb1 Qe7 Rb3 Qd8 Re3 exf5 e6+ Kc6 e7 Kd7 Re6 fxe6 Ke2 Kc6 Ke3 Kc5 Kf4 Kd4 e8Q Kd3 Ke5 h5 g4 b5 g6 h4 f7 h3 g7 c6 g5 c3 Qa4 h2 Qe7 c2 Ne2 b3 Bb2 c1N Qa6 Nf6 Qaa7 b4 Qg1 Nbd7+ Kd6 Ra7 Qd1 Nd5 Nb1 N7b6+ Ke5 Ba6 Bd4 b2 Nbc3 b1Q Nb5 b3 Qg1 b2 Nc7 Nf4 Kf6 Nc4 Bb6 Ne3 Nd4 Rh4 Nf3 Ke2 d4 Qc2 Ne5 b1Q d5 Ncd3 g6 Ne1 d6 Qbd1 Qg3 Bc4 Rg1 h1N d7 Nf2 Qh2 Rg4 Rg3 Kf1 Rh3 Be2 Rf3 Nc4 Rc3 Ne3 Rc4 N2h3 Rc5 Qb8 Qe8 Bd6 f8B Qd8+ Be7 Rh4 Qf7 Rg4 Rc4 Bb4 Rc5 Bc3 Nd5 Ba1 Nc7 Qh8 d8B Nfd3 Qg8 Rd4 Qf7 Ndf4 Ng4 Nf2 Ke5 Nfd5 Bg5 Nf4 Kf6 N2h3 Ne5 Qh4
3r3N/4P1rN/p4r1K/Q3QqR1/p1n2rNP/BRq4p/qn2b2P/1kb5 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 Be3 bxa4 Bc1 e5 g3 exf4 Ra2 g5 Nf3 h5 Ng1 g4 Ra1 h4 Bh3 gxh3 gxh4 Rh6 Kf2 Rh5 Ke1 Rh8 Kd2 Ke7 c4 Kd6 e4 Ke5 b4 f5 c5 d5 b5 f3 c6 f2 c7 f1Q b6 d3 Ke3 f4+ Kd2 Kd4 b7 a6 e5 f3 e6 f2 e7 Bg4 c8N Nh6 Ra2 Nd7 b8Q Qa5+ Nc3 Nf5 Nb6 Ne3 Qc2 Be2 Ra3 Rh6 Qd1 Rf6 Ra1 Bh6 Ra2 Nc5 Qe1 Bg5 Qg3 Rg8 Ba3 Rg7 Nd7 Qg2 Qb8 f1Q Nf8 Qf5 Ng6 Kc4 Qb2 d4 Nf3 Bf4 Qba1 Kb3 Rg1 Bh6 Ng5 Nc4+ Kc1 Qgf2 Ne4 Qc3+ Rc2 Qg2 Nf2 Qgd5 Nh8 d2+ Kb1 d3 Nh7 Qf7 Rg5 d1R+ Rc1 Q7d5 Ng4 Qg2 Qd2 Rf1 Qe1 d2+ Rc2 Qcf3 Qe5 Nd3 Rc1 d1R Q1a5 Rd2 Rd1 Ndb2+ Kc1 Ka2 Re1 Bd1 Re3 Rd8 Rb3 Rf2 Qec7 Be2 Qce5 Nd6 Kd2 Kb1 Qc7 Qc6 Ke3 Rf4 Qca5 Qc4 Rb7 Qa2 Rb3 Qg3+ Kd2 Qe6 Rg6 R4f5+ Qe3 Rg5 Qee5 Qe1+ Ke3 Nc4+ Ke4 Qc3 Rb4 Qc8 Rb3 Rfd6 Kf4 Re6 Ngf6 Rg4+ Kf5 Re4 Ng4 Bc1 Rg5 Qd7 Rg6 Rf4+ Kg5 Ref6 Kh6 Rff7 Rg5 Qf5 Rh5 Rff8 Rg5 Rf6+
q3N3/1p1k1r2/n2qn1P1/3PR2p/2N1bB2/5pn1/n1NbQP2/1r1Qb1RK w - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 a5 b4 axb4 Bd3 g5 hxg5 Qxd3 c5 b3 c6 Qd8 Ba3 Nxc6 Bc1 Nb8 Kf1 e5 d4 c5 g4 h5 Kg2 f5 a4 c4 g6 b2 g5 f4 a5 c3 a6 f3+ Kh2 c2 g7 e3 g6 e2 d5 e1B a7 e4 Ra6 e3 Ra5 e2 Qd2 Bf5 Qg5 Bfb4 Qg3 Qd6 Rb5 Nh6 g8N Rh7 Nd2 b1Q Qe5+ Kd7 Rb6 Na6 Nc4 Qa2 Bf4 c1N Qd4 Qa3 Qd1 Rf7 Rc6 Re8 a8Q Na2 Qb8 Bbd2 Nf6+ Ke7 Qa7 Be4 Qe3 Nf5 Qd3 Ra8 Ne8 Ng3 Rc7+ Kd8 Re7 Qa5 Re5 Kd7 Nh3 Rc8 Ng5 Rc5 Kg1 Rb5 Ne6 Rb1 Nd4 Qd8 Nc2 Qa8 Kh2 Bb4 Nb2 Bed2 Rg1 e1N Qe3 Nd3 Nc4 Ndc5 Qd3 Ne6 Q3e2 Nf1+ Kh1 Be1 N4e3 Bbd2 Nc4 Ng3+
n1rN2k1/1p6/P3qb1p/1QP2QqN/4B2P/2bn1pb1/3Rn1n1/1K2BNr1 w - - 0 1 legal: proof: d4 a5 b4 axb4 Qd3 c5 Qd1 cxd4 Kd2 e5 e4 dxe3+ Kd3 e2 f3 e4+ Kd4 e3 Ke4 Bc5 Kd3 Bf8 a4 g5 Ra3 d6 Rc3 Bd7 Rc4 Bc6 Rf4 Be4+ fxe4 gxf4 g4 e1B h4 f5 c4 Kf7 Kc2 e2 g5 h6 e5 b3+ Kb2 d5 c5 d4 a5 d3 a6 f3 Bh3 f2 Bf4 f1Q Rh2 d2 Rf2 Nd7 Rf3 Nb6 Bg4 Qh3 Rg3 Rc8 Bf3 Bg7 Qc2 Bf6 Rg2 Na8 Bg3 f4 Be4 Ne7 g6+ Kg8 g7 Qe6 Nh3 f3 Ng5 Nf5 Nf7 d1N+ Ka1 Qde7 Nd2 b2+ Kb1 Nf2 Nf1 Ne3 Nd8 Bc3 Rh2 Nd3 Be1 Nc1 Qd3 Ng2 Qd7 Nd3 Qb5 Qf5 e6 Qg5 Qd7 Qd6 e7 Qe6 e8N Rh7 Qb5 Rh8 Nd6 Rh7 Nf5 Rh8 N5g3 Rh7 Bd2 e1B Nh5 Bg3 Be1 Ne3 Re2 Ng2 Kc2 b1N Rd2 Ba1 Re2 Nc3 Rd2 Ne2 Kb1 Bac3 Nc6 Kf7 Nd8+ Ke7 g8Q Rg7 Qh7 Kf8 Qg6 Kg8 Qf5 Bd6 Nhg3 Qg4 Bc6 Ne3 Qd5 Qf5 Nh5 Rg1 Qe5 Ng2 Be4 Qg5 Qf5 Bg3
5r2/qp2RP1Q/3rpQ2/pQP2r2/1br4R/2P1N3/KBB1nb2/1n2kqb1 w - - 0 1 illegal: No proof kernel
r7/1KN3rb/RP1b2nP/p3nR1B/4RQqp/1rn1p2n/1NP5/k2r2Q1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra2 fxe4 Ra4 Qb6 Ra1 Qd8 g4 h6 g5 hxg5 h3 Na6 h4 Nb8 h5 Qb6 Bf4 Qc7 Bg3 Qd8 Bh4 gxh4 Kd2 Kf7 b4 Ke6 f4 Kd5 b6 a5 h6 g5 b5 e5 b7 e3+ Kd3 e2 b6 e1R f5 e4+ Kd2 e3+ Kd3 g4 f6 g3 f7 g2 Na3 Qg5 Rh3 Qg4 Rh2 Rh7 Rc1 Nc6 b8Q Rg7 Rh3 Bd6 f8R Nge7 Nb5 Ng6 Nf3 g1N Rg3 Nh3 Nd2 Ke5 Kc4 d3+ Rf4 Bb7 Be2 Rf1 Nb3 d2 Nc7 Rg1 Qe1 d1N Nc5 Nc3 Na4 Rh1 Qf2 Rf1 Ra1 Rb1 Qg1 Rb3 Re4+ Kf6 Rf3+ Bf4 Kc5 d5 Qf1 d4 Qg2 d3 Nb5 d2 Rd1 Qe6 Rdf1 d1R Qc7 Nh8 Rb4 Nb1 Qg1 Qc8 Qf7+ Ke5 R3f2 Qf5 Bh5 Qg4 Rd2 Bh2 Rd7 Bc8 Rb7 Bf5 Nc7 Bh7 Ra7 Ng6 Kb5 Bf4 Ka6 Bh2 Kb7 Bg3 Rb5+ Kd4 Ra6 Bd6 Qf3 Kc4 Rf5 Nce5 Qff2 Kb4 Nb2 Ka3 Rf4 Ka2 Re4 Ka1 Qfg3 Ra3 Rf5 Nc3 Qf4 Rb3
k3K3/2Q2N1q/P3q1q1/Q1bP4/2p1Bpq1/3Pp1rN/bn1r1B1R/N4bq1 w - - 0 1 legal: proof: h4 d5 b4 a5 a4 axb4 e4 g5 f4 Nc6 e5 Nd4 d3 gxh4 c3 e6 f5 exf5 cxd4 f4 Ra2 Qf6 Re2 Qd8 Re4 dxe4 Ke2 Kd7 g4 Kc6 g5 b5 e6 Kb7 a5 f5 e7 c5 e8Q h5 g6 h3 g7 b3 Nd2 h4 Qh5 f3+ Ke3 f2 Kf4 h2 Ke5 b4 Be2 f1B Qg4 f4 Nc4 h3 Nf3 b2 Qd2 b1Q Qg2 b3 Qe1 b2 Qh4 e3 Ncd2 Nf6 g8N Ne4 Nc4 Nf2 Ng5+ Qd5+ Kf6 Nd1 Qgg3 Be6 Nh6 Rg8 Qe1 Qg2 Bh5 Qa2 Nd2 b1Q Nhf7 Qg4 Bg6 Qb6 Qh7 Nb2 Nb3 Ra6 Qb4 Ka8 Na1 Qb3 Bd2 Qc4 Rg1 h1Q Be1 h2 Rg2 Qg1 Nh3 h1Q Rh2 Qcd5 Bh4 Qdc6 Be4 Ba2+ Nd6 c4 Kf7 Qd5+ Ke8 Rg5 Nf7 Bc5 Qg7 Qg6 Bf2 Rb6 Qe5 Rb7 Qe7 Qde6 d5 Rb5 Qa3 Rb3 a6 Rc3 Qa4 Rc2 Qb4 Rd2 Qc3 Qh4 Qa5 Rg3 Bg2 Qhh7 Be4 Qeg4 Qe5 Qhf3 Qd6 Q4f5 Qd7 Q3g4 Qdc7 Qfe6+
1K1N1n2/1r6/2r1rkpQ/2P3n1/2Q3B1/2P1Qbp1/R1Pqqp2/1N1qqR1n w - - 0 1 illegal: Other
1R2b3/1q5b/p3Q2B/1P2nP2/1N1b2Pb/kqR2n1p/1n1QK2p/q1QB1r2 w - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 h3 fxe4 a5 g5 a6 g4 Ra4 g3 Ra2 bxa6 Ra4 a5 Ra1 a4 h4 a6 Nd2 Bh6 Ndf3 Bf8 Nh2 gxh2 g4 Ra7 Be2 Rc7 Bb5 Rc5 Bf1 Rg5 hxg5 Bh6 Bd2 Bg7 Bc1 Bf8 f4 d5 b4 Kd7 c4 Kd6 g6 h5 g7 e5 Bh3 e3 Qf3 e4 b5 Kc5 Kf1 Kb4 c5 e2+ Kf2 e1Q+ Kg2 e3 c6 a3 c7 a2 Qf2 e2 Kf3 d3 Qg2 h4 Qg3 d4 Qf2 d2 Qf1 d1B Bd2+ Ka3 Ba5 d3 Rb1 a1Q Rb4 d2 Bb6 Bc5 Re4 Qd5 Bg2 h3 Qf2 Nf6 g8Q Bd7 c8Q Nc6 Bd8 Nh7 Bg5 Qc4 Bh6 Bd4 Re8 Bc2 Qe6 d1N Qc7 Bg6 Rb8 Nb2 f5 Rc8 Qf4 Bde8 Qf1 Qh4 Qd2 e1B Ne2 Qe7 Nf4 Qb7 Nd5 Bh4 Nb4 Qc2 Qfc4 Qb3+ Qcc3 Rc7 Rc1 Rc8 Bf1 Rc7 Bd3 Ne5+ Ke2 Ng5 Bc2 Bh7 Qcc6 Rc8 Qh1 Rc3 Qhc6 Rg3 Bd1 Rf3 Qcc2 Rf1 Qb1 Qc8 Rc3 Ngf3 Qbc1 Qb7
k7/b2P1pP1/1R1r1B1N/n1Kbp3/2Qq2P1/3QqQ1N/1pBq4/r3rbq1 w - - 0 1 illegal: No possible last move, all moves rejected
2Qq1Rnk/2pR2nP/1B1B4/4nP1Q/1qQb2N1/p2p3b/2P4K/r2qb2q w - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 e4 f5 g5 b6 Bh3 Ra7 Bg4 hxg4 a4 Ra6 Nc3 exd4 e5 b5 Ne4 fxe4 f5 Rf6 gxf6 bxa4 Kf1 Kf7 Kg2 d5 b4 g5 h4 a3 b5 d3 h5 d2 b6 a4 h6 e3 h7 g3 b7 a2 Rh6 d4 Nf3 g4 Ng1 d3 Bb2 e2 Nf3 e1B Qc1 d1Q Kg1 g2 Ba3 Na6 b8Q Bg7 Qg5 Nc5 Qb4 Bb7 Qd4 Ne6 Kh2 g1N Rb1 a1Q Bc5 Qc3 Qc4 Qb4 Bb6 Kf8 f7 g3+ Kh1 a3 Qh5 g2+ Kh2 Bf6 Rg6 Ng7 e6 Bd4 Ne5 Bf3 Rg5 Bg4 Rb2 Bh3 Ng4 Ne2 Rg6 Nf4 Rf6 Ng6 Rb3 Qb5 Rb4 Ne5 Ra4 Qb4 Ra8 Ne8 e7+ Kg7 Ra4 Nh6 Ra6 Rg8 f8B+ Kh8 Ra4 Ng7 e8Q Qdd6 Qb8 Qd8 Bd6 Re8 Ra5 Ng8 Rf8 Re6 Rd5 Rg6 Nf2 Rg3 Qc8 Rf3 Ng4 Rf1 Be7 Rg1 Rd7 Rf1 Nf2 Rg1 Bd6 Rh1+ Kg3 g1Q+ Kf4 Bec3 Qc6 Qe2 Qc4 Qg2 Ng4 Ra1 Qd5 Qg1 Qc4 Qh1 Kg3 Qef1 Bdc5 Qd1 Bd6 Qe4 Kh2 Be1 Bbc5 Qc6 Bb6 Qh1+
Q1b5/1rN3k1/KB2n1p1/PQp2P2/1pRNb1r1/2nn4/5nNP/1R2r1bn w - - 0 1 legal: proof: c4 d5 f4 dxc4 e4 a5 b4 axb4 g4 h5 e5 hxg4 Bg2 f5 Be4 fxe4 f5 Qd3 Ne2 Qd6 Ng1 Qf6 exf6 Rh7 Nh3 Rh6 Ng1 Rh8 Ke2 Kf7 d4 b5 a4 e5 a5 g3 d5 b3 d6 c3 d7 b4 d8Q e3 Kd3 g2 Kc4 e4 Kb5 b2 Q8d7+ Ne7 Ra4 c2 Qd8 e2 Q1d2 e1R Na3 b1B Qd1 e3 Qh5+ g6 Qd6 e2 Qh4 Nbc6 Qd1 Nd8 Nh3 g1N Qg5 Rh4 Be3 c1N Qd3 Rg4 Bb6 Nd5 Nc2 Ne6 Nd4 Ra7 Ra1 Bc5 Nf4 Nh3 Ng2 Rb7 Ka6 Nf2 Qb5 Be4 Rb1 Ncd3 Rg1 Kf8 f7 Kg7 f8N Nh1 Qd8 Ndf2 Rc1 c6 Rc4 Nc3 Qd5 Rb1 Rd1 e1N Rc1 Ra1 Rb1 Ned3 Qd8 Bd7 Qa8 Bc8 Ne2 Be3 Nd4 c5 Rb3 Re1 Rb1 Nef4 Nfe6+ Kh7 Nc7 Ne6 Qc6 Kg7 Qa4 Nh3 Qe8 Bg1 Qb5 Nh3f2
b1KnN3/r2R3P/1bp1P1n1/1k1PBn2/2p2Qnp/6R1/1q3QN1/1nN1n2b w - - 0 1 illegal: No proof kernel
1Q3r1n/K1b2rP1/nBrN2b1/QP1R1br1/1Pr2np1/NB3k2/1p2p3/B7 w - - 0 1 illegal: No proof kernel
3Bk3/nrp1r1r1/prP1B2R/1Q1KbBQ1/6Pq/P5p1/6N1/1Rr1rbq1 w - - 0 1 legal: proof: d4 g5 g4 b5 h4 gxh4 c4 Na6 Nc3 bxc4 f4 e5 Ne4 exf4 Ng3 Nc5 dxc5 fxg3 Kd2 d5 Ke3 h5 Kd4 f5 e4 f4 b4 f3 c6 h3 e5 f2 b5 h2 b6 c3 e6 c2 e7 h4 a3 h3 b7 Bg7+ Kc5 d4 b8Q d3 Bf4 c1R+ Qc2 d2 Kc4 d1R Qb6 Be5 Qb2 Re1 Rb1 Ba6+ Kc5 Rh7 Be2 f1R Bh6 Rb8 Bd3 Rb6 Be4 Rg7 Qb5 Rff7 Nf3 Rb7 Nh4 Qd1 Qa4 Bf1 Bf5 a6 Ng2 Rb6 Bg5 Rb7 Rg1 h1Q Qb5 h2 Qcc4 Qb3 Kd5 Qe3 Bf6 Qg5 Qf4 Qh4 Ra1 Rb1 Qg5 Rb2 Rb1 Rc1 Qa5 R2b6 Qa4 Nh6 Be6 Nf5 Qb5 Nd6 Bf5 Nc8 Be6 Bd3 Re1 Qf1 Bf5 Qf2 Rh1 Na7 Be6 Qg1 Bf5 Rh7 Be6 Rfg7 Bf5 Kf7 e8B+ Kf8 Beg6 Bf1 Bd8 Re7 Bf7 Rg7 B7e6 Ke8 Qf4 Qe3 Rg1 h1R Qg5 Rh2 Rh1 Qg1 Ne3 Re2 Ng2 Ree1 Rh2 Qh7 Rh6 Qh8 Rg6 Qh3 Rh6 Qh4
n2rk3/1p1b1N1N/1B1b3Q/1KR1p2Q/4r3/1bB2P1b/2PqPp1q/B1q3q1 w - - 0 1 illegal: No proof kernel
1kN5/NPp5/1pB1Br2/5Rr1/1b1Q1n2/1b1bN1P1/1pP1b1r1/b1Kn2rQ w - - 0 1 illegal: No possible last move, all moves rejected
1r3q2/4Ppb1/1k2bp1n/nP3Q2/R1P2Q2/KBN3Q1/rnprp2B/4Nb2 w - - 0 1 illegal: No possible last move, all moves rejected
r5r1/qN3kbp/1N1Bp2q/pp4rn/K2P1P1b/2QP1Q2/2R3Q1/n3R2q w - - 0 1 illegal: No possible last move, all moves rejected
1R2Bb2/2rQbP1p/3Q3n/Bn1pqp1k/4nK2/1P4r1/p1Q3rP/3R2Nq w - - 0 1 legal: proof: g4 e5 f4 c5 a4 b5 d4 bxa4 g5 cxd4 g6 Ke7 Nd2 a3 b3 Bb7 Nc4 Be4 Nb2 axb2 Ra6 Bd5 Ra4 f6 Ra1 Bf7 gxf7 exf4 Kf2 b1Q Kf3 g5 e4 a5 c4 d5 c5 d3 c6 f5 c7 Kf6 c8Q Kg6 e5 d2 e6 g4+ Ke2 f3+ Ke3 g3 e7 f2 e8Q g2 Qdc2 d1R Qe7 a4 Q2c7 a3 Ra2 Rd2 Rb2 a2 Qc4 Nh6 Kf3 Rg8 Qed7 Qf6 Q8c7 Kh5 Kf4 Rg3 Rc2 Na6 Q4c5 Ra7 Nf3 g1B Qcd8 Rc7 Bb5 f1N Qc4 Rf2 Bd2 Rfg2 Ba5 Bgc5 Ng1 Nd2 Rc1 Bce7 Qc2 Qc3 Qd6 Qf6 Be8 Ne4 Q8d7 Qfa1 Ne2 Qc3 Rhd1 Qba1 Ng1 Qe1 Ne2 Qh1 Ng1 Qg7 Rd4 Qh8 Rb4 Qf6 Rd1 Qc3 Nf3 Qe5+ Ke3 Rc6 Rb5 Nc7 Rb8 Qb2 Kf4 Nb5 Ng1 Rc7 Rc8 Qd4 Rb8 Qe5+
2n1r2R/1PqQP1r1/4QbN1/2n2K2/1k1p4/p1qPB2B/b3rp1p/B2q1R2 w - - 0 1 legal: proof: b4 c5 a4 e5 h4 h5 f4 exf4 Nc3 cxb4 Ne4 b6 Ng5 b5 g4 hxg4 N5h3 gxh3 axb5 Bb7 Ra3 Ba6 Ra1 Bc8 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 e4 f5+ Kf3 g5 c4 a5 b6 d5 e5 a4 b7 b3 d3 h2 e6 b2 h5 b1Q h6 g4+ Ke2 g3 Kf3 g2 h7 a3 Be3+ d4 Qb3 Na6 Nh3 Ne7 Rg1 Qe1 Rd1 Rg8 h8B Qc7 Bf6 Qc3 Bh4 Bg7 Be1 Re8 Qa2 Kb4 c5 Bh8 c6 Bf6 Qd5 Nc5 Qd7 Ra6 B1d2 Ra8 Bc1 Ra6 Bb2 Rb6 Re1 Rb5 Rh1 g1R Ba1 Rg7 Rg1 Rb6 Rg6 Ra6 Rh6 Ra8 Rh8 Ra5 Kf2 f3 Nf4 Rb5 Ng6 f4 Bh3 Rb6 Kf1 f2 Kg2 Rb5 Kf3 f1Q+ Kg4 f3 Rd1 Qh1 Rf1 f2 Qd5 Bd7 Qf5 Nc8 e7 Rb6 Qe6 Qg1+ Kf5 Qh1 Rc1 Qd1 Rb1+ Ka5 Rc1 Rb2 Rb1 Kb4 Rc1 Qd6 c7 Bc6 Rb1 Bd5 Rc1 Ba2 Rb1 Qe2 Rf1 Qd1 Qd7 Re2 Qe6 Na7 c8Q Qc7 Qcd7 Nc8
1qN1K3/nQQp3p/1p1b4/2Np2r1/3q1P2/1R3b1P/k1BN1b1P/Bn4qn w - - 0 1 legal: proof: d4 f5 e4 fxe4 b4 a5 a3 axb4 d5 c6 Ra2 cxd5 a4 Ra6 Ra1 Rh6 Ra3 Rh3 gxh3 bxa3 Kd2 g5 Ke3 e5 c4 Ke7 f4 Kd6 a5 Kc5 a6 Kb4 a7 a2 a8Q a1Q c5 b6 c6 g4 c7 g3 Qf3 Kb3 Qf2 g2 Ne2 g1Q Qa5 Nf6 Qa8 Nc6 Qa6 Na7 Bd2 Bd6 Nbc3 Rg8 Nb1 Rg5 Be1 Nh5 Qb7 Ng3 Bc3 Ka2 Nd2 Qf8 Nd4 Qe8 Qc6 Ba6 c8N Be2 N4b3 Bf3 Bd3 Qf8 Bc2 Qd8 Ne7 Qb8 Qb7 Qb2 Nc8 Qba1 Nc4 Qb2 Nc5 Qb4 Kd2 e3+ Kd3 e2 Nd2 e1B Ba1 Qb2 Qe2 Bf2 Qf1 Qb4 Qc1 Qe4+ Kc3 Qa4 Kd3 e4+ Kc3 e3 Kd3 Qd1 Rg1 Nh1 Rg3 Qa5 Kd4 Qg1 Qf1 Qa3 Qb5 Qac1 Q5c6 Qcd1 Qcc7 Bg4 Rf3 e2+ Re3 e1N Bf5 Bf8 Ke5 Nf3+ Kf6 Bd6 Kf7 Qa4 Ke8 Qd4 Rb3 Bh5+ Bg6 Bg4 Nc4 Nd2 Bc2 Nb1 Nd2 Bf3
1krq2K1/2N3Br/qP1ppB2/1n2pQ2/1p2RNb1/n2nP3/5P1B/n2n3Q w - - 0 1 illegal: No possible last move, all moves rejected
5K2/R1P2pq1/1pNR1q2/3q2N1/2q2q1k/2nB3P/QQr1pnpP/1N2bb2 w - - 0 1 illegal: No proof kernel
2q5/r1Rqrb2/5R1N/q4Bp1/1p5b/QP1Qqp2/4P1pP/RKb2Bnk w - - 0 1 legal: proof: f4 e5 d4 c5 g4 cxd4 Na3 b5 Nc4 f6 a4 b4 g5 fxg5 f5 Na6 Bf4 exf4 Ne5 Nc7 Ng6 Nb5 axb5 hxg6 Kd2 Ke7 Kc1 Kf6 c4 a5 b3 d5 c5 g4 b6 Kg5 b7 Kh4 b8Q g5 f6 a4 f7 d3 c6 a3 c7 d4 Qa7 f3 Qb8 a2 Bh3 d2+ Kb2 d3 Qc1 d1Q Rb1 g3 Qc6 g4 Qg6 g2 Qc6 g3 Qc3 d2 Qc5 Ra7 Be6 Nh6 Qf5 Be7 f8R Ng4 Rg8 Rh7 Qe5 Qc1+ Ka1 d1Q Re8 Qe3 Bf5 Nf2 Qe6 Nh3 Rf8 Q1d7 Qd5 g6 Kb2 a1Q+ Kc2 Qa6 Qd3 Qa5 Qa8 Bg5 Rf1 Re7 Rf6 Bb7 c8B Bd5 Rc1 Bf7 Kb1 Q8e8 Ba6 Qec8 Rc7 Bf4 Bc4 g5 Bd5 Qd4 Bde6 Bc1 Rc3 Qe3 Rc7 Nf2 Nh3 g1B Nf4 Nh3 Nh5 Bf2 Ng7 Ng1 Bh3 Be1 Nf5+ Kh5 Nh6 Kh4 Qc6 Bf2 Qa4 Be1 Bhf5 Bf2 Qa3 Be1 Ng4 Kh3 Nh6+ Kg2 Rc5 Nh3 Rc7 Bf2 Rf1 Ng1 Bh3+ Kh1 Bef5 Qdd8 Re1 Qdd7 Bf1 g2 Ka2 Bb2 Ra1 Bc1 Kb1 Bh4
nQ2q1nN/3n3B/3Q1BN1/1p2pK1P/1p1b1qP1/Bq1k4/3pRPq1/2r2b2 w - - 0 1 illegal: No proof kernel
QQNk1b2/Brn5/1pq5/1nr2pp1/1q2R1PB/1p3B1P/rPq2qN1/3K4 w - - 0 1 legal: proof: f4 c5 g4 a5 a4 e5 d4 cxd4 Qd3 exf4 Qg3 h5 Ra3 b6 Rb3 h4 Rb4 axb4 a5 hxg3 a6 Bb7 axb7 Ra2 Bd2 Ra1 Bc1 Ra8 e4 g5 c4 d5 c5 f5 e5 b3 c6 f3 h3 g2 e6 f2+ Kd2 d3 c7 d4 c8Q Ra2 e7 Nf6 Nf3 g1Q Ne1 Nd5 Qc6+ Qd7 Kd1 d2 Be2 f1R Nc3 Rh7 Qc7 Na6 b8B Qf2 Qb7 Ndc7 Qa8 Nb5 Nd5 Qc6 Bf3 Nac7 Ba7+ Kd7 Rh2 Rg1 Rh1 Rg3 Ng2 Rf7 Be2 Rc3 Bf3 Rc5 e8Q+ Kd6 Qe4 Kd7 Re1 Rg7 Qb7 Kd8 Qb8+ Kd7 Qee8+ Kd6 Re5 Qh4 Ke2 d3+ Ke3 d1Q Qa8 d2 Qec8 Na6 Qcb8+ Kd7 Re4 Qc2 Ne7 d1Q Nc8 Kd8 Bd2 Rb7 Be1 Nac7 Bg3 Qc3+ Kf2 Qdd4+ Ke2 Qdb4 Kd1 Qcc4 Bf4 Qf2 Bg3 Qcc3 Bh4 Qcc2#
6QK/1bkp4/r3PN1B/3Rpr1p/2Pn1Q1R/r1q1r1p1/3qNP2/2R1b1b1 w - - 0 1 illegal: No proof kernel
R3K3/2p4R/1bn2pPP/1PrQb2k/1p1R1b2/pN2qr2/b2bNB2/5Qb1 w - - 0 1 illegal: No proof kernel
NQ1n2QB/Pq2B2R/1p1b2bp/3Pp2p/r4Np1/q6n/bP1BK3/kr6 w - - 0 1 illegal: No proof kernel
6R1/2P5/2K4n/1q3Ppn/qBp1RrpN/rrP2pNQ/p3Q3/n1kb3Q w - - 0 1 illegal: No possible last move, all moves rejected
B3Q3/nb4QK/n1Q4b/pp1b2B1/1PRr2pP/7p/1k1Pqbp1/1b1R3N w - - 0 1 illegal: No proof kernel
2nK1bB1/1r4Q1/1Pr1R1P1/q2r1p1Q/2pp4/r1pp2N1/1P2q3/BNkb1N2 w - - 0 1 illegal: Other
1N5q/qQ6/1bpr2bQ/R1Pk2P1/1R1b1K2/n1n1Q3/2bP1N1b/1B2bqrb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 f6 h4 Bb2 gxf6 Bd4 f5 Bf2 f4 Bg3 hxg3 Ke2 Kd7 a4 Kd6 c4 f5 h4 e5 g5 b5 h5 g2 a5 b3 h6 f3+ Ke3 f2 h7 b4 a6 b2 a7 f4+ Ke2 b3 Ra2 e3 Kf3 e4+ Ke2 Nf6 Qe1 f3+ Kd1 Na6 Nh3 g1B Qe2 Bg7 Rh2 Nb4 Ra5 Nfd5 Na3 b1B Qe1 e2+ Kc1 e3 Ra4 Bc2 Rg2 Nc3 Qd1 e1B Nf4 e2 Ne6 Bb7 Nf8 Bd4 Nd7 Bh2 Rg4 Rg8 h8Q Rg6 Bh3 f1Q Rf4 f2 Nb8 Qg1 Bf5 f1Q Nb1 Bh1 Qh6 c6 Ra5 Bef2 Qe1 Qh8 Rh4 Bb6 c5+ Kd5 Kb2 Bd4 Qg3 e1B Qe3 Rd6 Kc1 Nb5 Bh7 Bg6 Kd1 b2 Re4 Qf7 Ke2 Na2 Rh4 Na3 Nc3+ Kc4 Re4 b1B Nd1 Bc2 Nf2 Kd5 Rg4 Ba1 Rb4 Bd4 Nd7 Re8 a8Q Qe7 Nb8 Qa7 Qb7 Re4 Qf8 Rg4 Qh6 Rg2 Kf3 Rg3+ Kf4 Qf1 Qee7 Nc3 Qe3 Bh5 Bf5 Bg6 Bd3 Bd1 Bb1 Bb3 Qc7 Bbc2 Qb7 Rg1+
6Q1/nR5n/b1bN1P1p/n1B1b1RP/1r1R4/3rbQrk/K1qrr2P/b6B w - - 0 1 illegal: Other
2q1b2Q/Nn1p4/knNR2r1/1rR5/1b2nPQ1/r2P3r/K1B3Pb/1n1nRr2 w - - 0 1 legal: proof: h4 c5 e4 a5 b4 f5 h5 fxe4 h6 c4 Bb2 axb4 Nh3 c3 Qc1 cxb2 Ng1 gxh6 Qd1 h5 Bb5 h4 Be2 Bh6 Bf1 Bf8 c4 b5 a4 e5 f4 h5 c5 h3 d3 h2 Kd2 h4 Kc2 b3+ Kc3 b4+ Kc4 e3 a5 e2 a6 e1R a7 e4 c6 h3 c7 e3 Be2 Ba6+ Kd5 Rh6 c8Q Ne7+ Kc5 Rg6 Nf3 Bc4 Nh4 Nd5+ Kd4 Rf1 Qd2 Nb6 Qe1 Bf7 Nf3 Nc6+ Ke4 Na5 Kd4 Nb7 Qcc1 Qc8 Na3 Kd8 Qcd2 Kc7 Ne5 b1R Nc6 b2 Qc2 b3 Kc3 Bb4+ Kd4 Be8 Bg4 e2 Qg3 e1B Rg1 h1N Bd1 h2 Qc3 Nf2 Bc2 h1R Qg4 Nd1 Ra2 Bg3 Ra1 Rb8 a8R Bh2 Ra5 Ra8 Rc5 Ra5 Ra2 Rb5 Ra1 Rc1 Ra2 b1N Ra1 b2 Ra2 Nd5 Kc4 Kb6 Kb3 Ka6 Qh8 Nbc3 Ra1 Ne4 Ka2 Nb6 Rb1 Rf3 Re1 Rhf1 Ra1 Rh3 Rb1 Ned6 Re6 Ne4 Rd6 Ne3 Ra1 Rce1 Rd1 b1N Rc1 Re2 Re1 Nd1 Rcd5 Rc5 Nb5 Rd2 Nba7 Rb5 Rc5 Re2 Ka1 Ref2 Ba4 Rb2 Bc2 Rb3 Ka2 Ra3+
1r1n1B2/1k2Nr1P/qq1nnrN1/nPp1q3/N1R2Q1K/2P4Q/R1b1n3/2b4n w - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 g5 bxa4 g6 f5 Nf3 f4 Ng5 f3 Bg2 fxg2 Nf3 hxg6 Ng1 g5 Ra2 g4 Ra3 Rh3 Ra1 Rh8 h4 Kd7 b4 Kc6 f4 a5 Kf2 g5 Kg3 e5 d4 e3 c3 e4 h5 a3 b5+ Kb7 f5 c5 h6 e2 f6 e1R f7 e3 d5 a2 h7 a4 d6 a3 d7 e2 Rh5 Ra7 Nf3 g1N Qd4 Qb6 d8Q Nh6 Rh3 Nf5+ Kg2 g3 Nh2 g4 Qe3 Bh6 f8N Nd6 Qee8 Rf1 Rh5 e1Q Bd2 Nh3 Nd7 Nc6 Qh4 Ng5 Nb8 Qe5 Qg6 Nd8 Na6 Rf6 Qh3 Bf5 Qe8 Bc2 Nf3 Nge6 Nh4 Bf4 Be3 Rhf8 Bd4 Bc1 Nd2 Ra8 Rh6 R8f7 Nc7 Rc8 Ng6 Rb8 Rb1 a1Q Nd5 a2 Qf8 Qc7 Rb4 Qb6 Kg1 g2 Nc4 Qb1 Ra4 a1N Nde7 Qa2 Rh4 Nb3 Nb2 Na5 Qh6 Qa1 Qf4 Qa3 Kh2 g1N Rc4 Ne2 Na4 g3+ Kg2 Qa2 Kf3 g2 Kg4 g1N Rh6 Kc7 Kh4 Kb7 Rh5 Qa3 Rg5 Qa1 Rg2 Ng3 Rd2 Nh1 Rg2 Bd3 Ra2 Bc2 Be3 Ne2 Bd4 Qd5 Be5 Rf5 Bg7 R5f6 Bf8 Qe5 Rb2 Qa3 Ra2 Nac6 Nb2 Qaa6 Na4 Na5
1b4NR/3R1b1r/3RQ1pB/n2P4/1n2qqbq/N2Q1PP1/r1qq1k1n/3q3K w - - 0 1 legal: proof: e4 d5 b4 h5 c4 dxc4 g3 f5 b5 fxe4 b6 h4 Bg2 h3 Ba3 hxg2 Bc1 axb6 Ba3 b5 Bc1 b4 d4 Kd7 h4 Kc6 a4 Kd5 a5 e5 a6 c5 a7 b5 h5 g6 h6 b3 f3 c3 Kf2 b4 h7 b2 Qe1 c2 Rh4 c4 Rh5 e3+ Ke2 b3 Ra3 c3 Rh4 e4 Ra1 Nh6 Ra6 Ng4 Ra2 Nc6 Qf2 Bd6 Bd2 c1Q Rh2 c2 Bb4 Na5 Rh1 Bb8 Ra4 Nh2 Ra1 Bg4 Ra4 Qh4 Nh3 g1Q Nd2 b1Q Qf1 b2 Nf2 Qa2 Bc3 b1B Nc4 Qab2 Qe1 Ba2 Bd2 Qcb1 Qf1 c1Q Na3 Qb1c2 Rc4 Qb4 Rc7 Q1b2 Ke1 e2 Rd7+ Qd6 Bh6 Qbc1+ Nd1 Qf4 Nf2 Qg2 Nd3 Qg1 Ne5 Qge3 Rg1 Qed2+ Kf2 e3+ Kg2 e1N+ Kh1 e2 Nc6 Nd3 Qd1 e1Q Ne7+ Ke6 Ng8 Kd5 Qb1 Qee4 Rd1 Nb4 Qb3+ Kc6 Qe3 Bf7 Qd3 Qdd5 Rc1 Qb3 d5+ Kc5 Re1 Qef5 Re6 Q5e4 Red6 Qa4 Qb5+ Kd4 Qc4+ Ke3 Qc3+ Kf2 Qf6 Bc7 Qe6 Rd8 a8Q Bb8 Qa6 Rc8 Qd3 Rc3 Nb1 Ra3 Nf6 Ra2 Na3 Rg8 h8R Rg7 Ng8 Rh7 Qa6 Qab3 Qc4 Qbd3 Qa6 Q3e2 Qd3 Qed1+
2Nb1b1r/1k2bK1r/3RP2b/BP2p3/QQ2qn1r/1r3Rrb/3NPR2/1q1n4 w - - 0 1 illegal: Other
1n1qrRN1/3n1QN1/2qn1K2/1b2Nb2/2qP1bR1/2P1Bq1p/1k3r1P/2q2bQ1 w - - 0 1 illegal: No possible last move
4nR1K/4nr2/QRb1rrQB/1PB1r2n/4B3/Pkb2p1n/1q3PbN/1n4q1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 d5 Na3 b5 Nc2 bxc4 b5 dxe4 Nb4 axb4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 h5 d4 f5 Kg6 e5 g4 c5 g5 e3 a3 b3 Bh3 e4 Bg4 c3 Bd2 Kc4 d5 f4 d6 e2 d7 e1R Rb1 c2 Kf7 c1N g6 h3 g7 h2 Bf5 e3 Be4 e2 Nh3 f3 Rf1 h1B Bg6 h4 Bc3 b2 Qc2 Ne7 g8Q Nd3 Qd2 Rh6 Rd1 b1N Rg1 Ra7 Qf4+ Kb3 Bh8 c4 Kf6 Na6 Rf1 Bb7 Qh7 c3 Qg7 c2 Rc1 Bg2 Rg1 Bc6 Qd6 Nc7 Ng5 h3 Nf7 h2 Ne5 h1N Ng4 Nf4 Nh2 Ng3 Rd1 Qa8 d8B c1Q Qh7 Qc2 Bg7 Qb2+ Kf7 Qc8 Be4 Ne8 Bb6 Ngh5 Qhg6 Qg4 Bc5 Nh3 Qdf6 Qg3 Rd8 Qg5 Rb8 Rc7 Rb6 Rb7 Bh8 Bg7 Qd6 Bc3 Bg7 Nd5+ Kg8 Rf7 Qde6 Qg3 Qc8 Qg5 Qa6 Qg4 Qf5 Rhf6 Qg6 Ne7+ Kh8 Qg5 Bh6 Qg3 Nf1 Qh2 Rh1 Qg1 Rh2 Rd1 Rh1 e1R Nh2 Rd2 Qb7 Rdd6 Qa6 Qf1 Rg1 Rde6 Rh1 Re3 Rg1 Qfc1 Rd1 Re2 Rd8 Qg1 Rc8 Rd2 Rd8 Rd5 Rc8 Rde5 Rcb8 Nd6 Rf8 Ne8
2B1n3/qK2n3/R1n3rb/2pbQ2P/1kPn1n1r/1b6/1r1qNNP1/1QQ2bB1 w - - 0 1 illegal: No possible last move
Q3q2N/bnbb3k/2n1nQq1/6rn/8/BpR1P3/rP2P1R1/1qq1NNqK w - - 0 1 illegal: Other
1q1QN1K1/1n3rPN/b4PQ1/p2rn3/P1q1qk1b/R2n1N2/1bn5/1q1n1B1R w - - 0 1 legal: proof: e4 g5 h4 gxh4 c4 d5 c5 f5 b3 f4 c6 dxe4 Bb2 bxc6 Bd4 c5 Be3 fxe3 Qc1 c4 Qc2 Qd7 Qd1 Qd8 Ke2 Kd7 f4 Kd6 a4 e5 d4 c5 g4 h5 g5 a5 g6 c3 f5 c4 d5 h3 f6 h2 g7 c2 b4 c1Q b5 h4 b6 h3 b7 c3 Qc2 Nh6 Qd3 c2 Qb5 Na6 b8N Ng4 Nd7 Ra7 Nc3 Qb1 Qc4 c1Q Nc5 Rh5 Qd3 Rf7 Nd1 Qc4 Nd7 Nc5 Nc3 Ba6 Ra3 Nb7 Nf3 Qb8 Rg1 h1N Ne1 h2 Nc5 Nhf2 Nd7 h1Q Ra2 Nd1 Nf3 Rf5 Ke1 e2 Kd2 e1N Ra3 e3+ Ke2 Be7 Nf8 e4 Nh7 Qh4 Rh1 Nc2 Nhg5 Ne5 Nh7 Kd7 d6 Ke6 d7 Rg5 d8Q Kf5 Rb3 Ba3 Nb5 Kf4 Nc7 Bb2 Ra3 Qg4 Ne8 Qf5 Bh3 Qfe6 Kf1 Rh5 Kg2 e2 Kh2 e3 Qg6 Rf5 Bf1 e1N Kh3 e2 Kh4 Rg5 Nd4 N1d3 Nf3 Rg1 Kh5 e1B Kh6 Rg5 Nf8 Bg3 Kh7 Bh4 Kg8 Qed5 Nh7 Qde4 Qb6 Nc6 Qd8 Rd5 Ra1 Nce5 Ra2 Nc1 Ra3 Ncd3
1r3Bkn/rbPQ4/2qNnb1K/2b1Rb2/p4Q1Q/2q4r/P2N1P2/1bR2r1n w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 cxb6 Ng1 b5 Ba3 b4 Bb2 Nd7 Bc1 Nb8 Ke2 Kf7 Ke3 a5 Kf4 g5+ Kg3 b5 d4 e5 h4 b3 c4 b4 d5 a4 d6 b2 c5 b3 h5 e3 c6 e4 d7 e2 c7 e1B h6 e3 h7 e2 Rh3 Nc6 Qd6 Nge7 Qb4 Ng6 Qd4 Qf6 d8Q Bc3 Rh1 e1Q Qf4 Ra7 Rh3 Bc5 Ne2 g1N Qd3 Bb7 Qde4 Nd4 Qff3 Rb8 h8Q Ne6 Qd8 Nh8 Na3 b1B Qff4 b2 Qd7+ Kg8 Qb4 Bf5 Qbe4 b1B Nd4 Ne2+ Kg2 g3 Kf3 g2 Nc4 g1R Nb5 Rf1 Nd2 Ng3 Rh5 Nh1 Ba3 Qc1 Nd6 g4+ Kg2 g3 Kf3 g2 Bb4 Bh3 Re5 g1R Ba3 Bf5 Qh4 Nd4+ Kf4 Rg3 Qf3 Qe6 Bb4 Rh3 Kg5 Qb3 Kh6 Ne6 Qf4 Qd5 Ba3 Qc6 Bb4 Bb2 Ba3 Qc3 Bb4 Bbd3 Rc1 Bb1 N6e4 Bd4 Bf8 Ba3 Nd6 Bac5 Re2 Bf6 Re3 Raa8 Re5 Ra7
1RQ2q1n/4B1N1/2q1pn2/3QP1r1/P2nRr2/1r1b1bPk/2N1Q1n1/2Kq1rb1 w - - 0 1 illegal: No possible last move, all moves rejected
q3b3/PN1p1qqn/1r3b1k/3P4/PnQ1b1Q1/1Nq5/1NRK2Bn/R1r1r2r w - - 0 1 illegal: Other
2Rrn1k1/Qp1b4/R1qqb1N1/1P1NP3/n1Q3nB/3r4/rP3bq1/1n1NKb2 w - - 0 1 illegal: Other
k1r3n1/1p1P2rR/qb2Bq1q/1P2nq1n/2Q1NB2/2Q1bN2/P2n2b1/QK3r2 w - - 0 1 illegal: No possible last move
2nkN1q1/1Krn1R2/2Q1p3/1P6/3q2q1/Bbb1PR2/1r1r1P1n/N1NnrbQ1 w - - 0 1 illegal: No possible last move
br1nq3/K1BQ1PQ1/1p1q1R1R/1q1k1N2/R1n4r/rP4nr/N1P1b3/n1b5 w - - 0 1 illegal: No extended proof kernel
3qR1R1/qQ1p4/1PqP3q/2Qrb3/r1rN2nk/1bB1q1N1/1Prq1N2/3K2n1 w - - 0 1 illegal: Other
3b1rnq/1p1k1N1Q/1r2bP1P/1Pbq3K/bBR1nQB1/Q7/r4Rr1/2q3q1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 f5 b5 fxe4 Nc3 c5 Nd5 cxd4 Nb4 axb4 Ke2 d5 c4 g5 a4 e5 f4 b3 h4 e3 h5 g3 Kf3 g4+ Ke2 d3+ Ke1 d4 h6 e2 f5 e4 f6 b2 a5 b1Q c5 g2 Kf2 e1R Kg3 e3 Kh4 g3 c6 d2 c7 d3 a6 e2 a7 Bc5 Ra2 Be6 c8Q Na6 Qa4 d1Q Qc7 d2 Qcf4 Kd7 Bb2 Qbc1 Nh3 g1R Qfc4 g2 Qe4 Qb3 Qa3 d1B Ng5 Qd5 Qf4 Ba4 Nf7 Rd1 Bc3 e1B+ Rf2 Qb8 Be5 Ba5 Be2 Bd8 Bd6 Rd2 Rh2 Ra2 Bg4 Bd4 Qaf3 Ne7 Bc5 Bb3 Qd2 Bc7 Bb4 Nc5 Qf5 Ne4 Re2 Bc5 Rh3 Ra6 Rc3 Rb6 Qdf4 Qg8 Rf3 Bd8 Ref2 Qg7 Re3 Rf8 Rc3 Ng8 Qh7 Qh8 Rc4 Rd1 Rfc2 g1Q Re2 Rd3 Ra2 Rg3 Rf2 Qd6 Kh5 Rg2 Qe3 Qd5+ Qg5 Rb8 a8Q Bd1 Qa1 Ra8 Qb2 Ra2 Qa3 Ba4 Qe5 Qd4 Qf4 Qd5+
rBQ1b3/R3NNr1/qn2K3/Q1b1npP1/3q3R/4P3/1kqn1PQq/4rrn1 w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 a5 e3 axb4 h5 e5 h6 e4 Bd3 exd3 Qg4 gxh6 Qf3 h5 Qd1 h4 Kd2 Ke7 c4 Kd6 g4 Kc5 a4 b5 a5 f5 g5 d5 a6 h5 a7 b3 Qc2 Kb4 c5 b2 c6 h3 c7 h4 Ra5 h2 Ra2 h3 Ra6 Nc6 Rb6 Bc5 Ne2 Nge7 Rd1 h1R Rb8 h2 Rb6 Qd6 Ng3 Rf1 Na3 h1Q Ra6 b1Q Ne4 Rg8 Ng3 Qh2 Nc4 Ne5 Nh5 Rg7 Ra3 Bd7 c8Q Qa6 Nb6 Be8 Qc6 Nc8 Na4 Nb6 Nc3 Kc4 Qc7 b4 Bb2 b3 Ba1 b2 Nf4 Qa2 Ne6 b1N+ Kc1 Nd2 Nd8 Qb3 Nf7 Kb4 Ra5 Qa4 Qc8 Ka3 Qa2+ Kb4 Kb2 Ndf3 Rd2 Qb7 Nh6 Nc6 Qb1 Ng1 Qa2 Rb8 Rc2 d2 a8Q d1R Ng4 d3 Qd7 d2 Nh6 d4 Nf7 d3 Qc8 Rde1 Ra7 d1Q Rd2 Qba6 Nd5+ Kb5 Qab7 Ra8 Ne7 Kb4 Rc2 d2 Rc4+ Ka5 Kc3 Qg4 Qa3 d1N+ Kd3 Nc3 Bb2 Nb1 Be5 Qgf4 Bb8 Nd2 Kc3 Qd6 Rh4 Ne5 Qg2 Qd7 Qb3 Qe4 Qb2 Ka4 Qb5+ Ka3 Qa5+ Qda4 Nc6 Qb1 Ne7 Bb4+ Kd4 Kb2 Rb7 Qbc2 Ra7 Nbd7 Kd5 Nb6+ Ke6 Bc5 Qh3 Qaf4 Qg2 Qd4
5Rr1/2qbk1qn/r7/n1PRpRn1/5BqQ/rqnQr2B/1P2P3/2N1K1b1 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Nd2 h4 Ne4 fxg6 Kd2 g5 Ke1 g4 Ng3 hxg3 f4 e5 h4 a5 c4 d5 f5 g5 h5 d3 f6 g2 f7+ Ke7 h6 d2+ Kf2 a3 h7 d4 Rh3 a2 Rh2 a4 Nh3 g1N Bg2 a3 Qe1 d1Q Bd2 d3 Nf4 g3+ Kf1 g4 Rh1 Nc6 Rh3 Bd7 Bd5 g2+ Kf2 g3+ Ke3 Nf6 Rh1 Qb3 Rh6 Ra6 Qb1 Qc7 Nh3 Rg8 h8Q Nf3 Qc2 g1Q+ Nf2 g2 Qd1 Na5 Be6 Ng5 Rh3 Nfh7 Rf3 Bh6 Rc1 a1R Bh3 a2 Rf5 Bf8 Rc3 Rc1 Rc2 a1R c5 Ra3 Rc3 Bh6 f8R Rca1 Bc1 d2 Rd3 R1a2 Qc2 d1N+ Kd2 Nc3 Rd5 Ra1 Nd3 Qd4 Rc8 g1Q Rcf8 Qdg4 Qd1 Q1g2 Ke1 R1a2 Bf4 Ra1 Kd2 Rc1 Qc2 Rf1 Nc1 Rf3 Ke1 Re3 Rd3 Qgc6 Qd1 Qf6 Rd5 Qg7 Qd3 Re4 Kf2 Nf7 Be3 Nf6 Bd2 Be3+ Ke1 Ng5 Qh4 Bg1 Be3 Nfh7 Bf4 Re3
4n1K1/4qrRb/1nr1NP1p/RrN2BbP/1q1R4/pQP4Q/4nr1q/4k2r w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 f5 e5 Be3 e4 Bf4 gxf4 Kf2 Kf7 g4 Kf6 b4 Kg5 b5 Kh4 b6 e5 b7 d5 h3 a5 g5 d3 g6 e3+ Kf3 a3 g7 h6 Nd2 a2 Qb1 e4+ Kg2 a4 Qb4 e2 Rc1 e1Q Qc5 a1R Qa3 e3 Kf3 e2 Nb3 d4 Ke4 Kg3 Ke5 Kf2 h4 f3 h5 d2 Qb2 d1N Bg2 d3 Bf1 a3 Nd2 Be7 Rh3 Nc3 Qb1 Ra6 Bg2 Rc6 Nf1 d2 Ng3 d1Q Bf1 Nf6 g8R Ne8 Rh4 Rh7 Bh3 Qd1d2 Rd4 Rf7 Qb3 Rb1 Rg7 Bg5 f6 Nd7+ Kf5 Qe7 Kg6 Qf4 Kh7 Nb6 b8Q Bf5+ Kg8 Bg6 Bf5 Qfc7 Qe6 Rb5 Ne4+ Kf1 Rb1 f2 Nh3 Qh2 Nf4 Qb4 Qbc8 Qe7 Rbb4 Qb1 Ra4 e1R Ra8 Ne2 c3 Qbb4 Nc5 Rc1 Ra7 Ke1 Ra5 f1R Qb3 Rd1 Nfe6 Rh1 Be4 Rd3 Bf5 Rf3 Qb8 Rff1 Qg3+ Rf2 Qh3 Bh7+
Nb4nQ/1b1kNq2/1K6/1n1pPb1B/3Pp1nP/qr1qq3/1qB1rR1B/4Q3 w - - 0 1 illegal: No proof kernel
2R3rr/nr5N/R1q3QN/P1b2RBP/3pbbQr/3P1p2/K2q1r1k/2nq4 w - - 0 1 illegal: No possible last move
Nnn4r/4BNQ1/1bBQq1Rn/q1pr2r1/2PbN1pr/1b1K4/1P5P/3r2k1 w - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 g5 bxa4 g6 f5 Nh3 f4 Ra3 hxg6 Rg3 fxg3 Ng1 g5 Bc4 g4 Bb5+ Nc6 Bf1 Nb8 Ke2 Kd7 f4 Kd6 d4 Kd5 c3 g5 f5 a5 f6 e5 f7 a3 Bd2 e3 Be1 Ke4 d5 a2 d6 a1N d7 a4 Nh3 g2 Bg3 g1B Nf4 a3 Bf2 a2 Nh5 g3 Bh3 g2 Qd6 Nb3 Ng7 a1R Qb4+ Nd4+ Ke1 Kf3 Qa5 e4 Qd5 e2 Kd2 e1R Qb5 e3+ Kd3 e2 Bh4 R8a5 Kd2 Nf5 Ne8 Nfe7 Bg3 Rd1+ Kc2 e1Q Bh4 Qe6 Qc6+ Rad5 Qd6 Bb6 Rg1 c5 Nc7 Ra4 Na8 Bg7 f8Q+ Ke2 Bf5 Nh6 Be4 Bd4 Nd2 Bb7 Qf7 Nc8 Qg7 Qc7 d8N Rb4 Rh1 g1R Nf7 Ba6 Bg2 Bc4 Ne4 Qa7 Bf3+ Ke3 Bg2 Qa5 Bf3 Rg4 Rg1 Ba2 Bh1 Ke2 Rg3 Kf1 Bg2+ Kg1 c4 Rb3 Rf3 Ra3 Rf6 Rag3 Rg6 Rh3 Be1 Rh5 Bh4 Rg3 Bf3 g4 Bd8 Rhg5 Be7 Rh3 Bg2 Rh4 Bf3 Rc1+ Kd3 Bb3 Nd2 Rdf5 Bc6 Rd5 Ne4 Rd1+
1b1n2q1/1k1b1NBB/2r2pK1/R1Q5/1rqQ1P1R/rPn1r1P1/p2r3n/4qB2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 a5 gxh4 a6 d3 Nd2 e5 Ndf3 bxa6 Bg5 a5 Nd4 exd4 Bc1 a4 Kd2 d5 e4 Kd7 f4 Kc6 c4 a5 c5 h5 e5 f6 g3 h3 b3 h2 e6 a3 e7 a4 e8Q+ Bd7 Qf7 h4 Ne2 a2 Qe8 h3 Ba3 Nh6 Rc1 a1R Rc2 Kb7 Bc1 a3 Qe7 a2 Rc3 Ng4 Qc2 Ra3 Bb2 Nc6 Qe6 Rc1 Qd1 Bd6 Qe8 Bb8 Qe6 Re8 Qf5 Re3 Qe1 Qg8 Qf2 Nd8 Rc4 Rc3 Ra4 Rc4 Ra5 Rb4 Rg1 h1R Nc3 h2 c6+ Kb6 c7 Kb7 Rg2 Rg1 Ne4 h1Q Ng5 Nh2 Be2 Re1 Bf1 Rc1 Nf7 Rc6 Rg1 Qe4 Rh1 Ng4 Rh4 Nh2 Kd1 d2 c8B+ Kb6 Qg1 Qd3 Bc3 Qc4 Kc2 d1N Qe4 d3+ Kd2 Rb5 Bb4 d4 Bf8 Rb4 Bg7 Nc3 Ba6 Kc7 Bb5 Kc8 Qd5 Kb7 Qc5 Qe6 Bc4 Qe4 Bd5 Qe6 Be4 Qc4 Kc1 d2+ Kc2 d1R Bh7 Rde1 Kd2 d3 Qf2 Re4 Qfd4 R1e2+ Kc1 d2+ Kc2 Qd5 Kd3 Re8 Qd6 Rg2 Qe7 d1Q+ Ke3 Qc4 Qee5 Na4 Ke4 Rd2 Qe7 Qdc1 Qe5 Ree6 Kf5 Nc3 Qec5 Qe1 Kg6 Re3
1N1bb1q1/2k2n1r/3p2Bn/2K1nrp1/1NnPQP2/1P4Qq/6R1/R3Nrqn w - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 e5 b5 b3 bxa4 e6 c4 Ne2 c3 Bb2 cxb2 Ng1 fxe6 Qe2 e5 Qd1 e4 Ke2 e5 Ke3 a5 c4 g5 d4 a3 f4 a4 h4 a2 c5 g3 h5 g2 c6 a3 h6 Ba6 h7 Be7 c7 Nc6 c8Q Bc4 Qh5+ Bf7 Qh6 Ra5 Nd2 b1N Qh2 Nh6 Ndf3 Nd2 Qg3 Nc4+ Ke2 e3 Kd3 e4+ Kc3 e2 Rh3 e1N Qa6 e3 Qb5 e2 Nh4 Nd3 Qb8 e1N Be2 N6e5 Qa8 Nf2 Rh1 N1f3 Nh3 g1Q Rh2 Nh1 Nf2 Bh5 Qc6 Nef7 Nd3 Rf5 Ng2 N3e5 Nge1 Qf1 Qb7 Qh3 Qe4 Qa8 Rf2 Kd8 Nb4 Kc7 Rg2 Qg8 Bd3 Bf6 Nc6 Bd8 Kb4 Bg6 Kc5 Bh5 Nb4 Bg6 Rc1 a1Q Rb1 a2 Rc1 Qb2 Ra1 Qf2 Bc2 Qg1 Bd3 Nfd6 Bc2 Be8 Bd3 Qg6 Bc2 Ndf7 Bd3 Rg8 h8N Rg7 Bb1 Qh7 Ng6 Qg8 Ne7 Rh7 Bc2 Qh5 Nec6 Qh3 Rb1 a1R Nb8 Ra2 Bd3 Rf2 Ra1 Rf1 Qe2 Rf6 Bg6 Rf5 Qe4 d6+
3bBr1r/2qpp3/b3q2Q/2nq3b/1R1q1qR1/1KPP1n1N/RP5k/rN3Q2 w - - 0 1 illegal: No possible last move
1n3nnk/1B1rppNr/2QQ4/br1bP3/2qnQ2P/2N3q1/1RB2P2/1K3nq1 w - - 0 2 legal: proof: h4 a5 d4 c5 b4 cxd4 a3 axb4 Nd2 g5 Nb1 g4 a4 h6 Bg5 Bg7 Ra3 Ra5 Rah3 gxh3 g4 Bf8 Bf6 Qb6 g5 Ra8 g6 Qd8 Bg5 hxg5 Kd2 d5 Kc1 b5 c4 g4 e4 h2 c5 b3 g7 b4 e5 g3 c6 g2 a5 b2+ Kc2 b3+ Kd3 Be6 a6 Qc8 c7 Rh7 Qf3 Ra7 Nd2 b1Q+ Ke2 b2 Qc3 d3+ Ke3 d4+ Ke4 Bd5+ Kf4 Qa1 Nb1 d2 Qd3 d1N Nf3 g1Q Qc3 d3 Na3 b1R Nb5 d2 Bc4 Nb2 Ke3 d1N+ Kd2 Na4 Kc2 Nc5 Qd3 Qa3 Ng5 Ne6 Nc3 Rb5 Bb3 Rab7 Kb1 Ne3+ Qd1 Nf5 a7 Nfd4 a8Q Ra7 Qe1 Qca6 c8B Rd7 Bb7 Qc6 Nd1 Qcc5 Qb4 Qc4 Bc2 Qag3 Qa3 Q1g2 Rf1 h1N Nc3 Qg1 Rc1 Qe3 Qa6 Ng3 Qc6 Nf1 Re1 Qeg3 Re2 Nf4 Ne6 Ng6 Qd6 Be4 Qc6 Qb3+ Kc1 Nf5 Nd1 Nf6 g8Q Bd5 Qe4 Nd4 Re1 Qc4 Qg7 Ng8 Qh6 Bg7 Nc7+ Kf8 Ne8 Nf4 Qhd6 Bh6 Nc7 Kg7 Ne6+ Kh8 Ng7 Rc5 Kb2 Ng6 Ka1 Bd2 Kb2 Bb4 Nc3 Ba5 Rb1 Nf8 Kc1 Nh6 Rb2 Rb5 Kb1 Ng8
3Kn3/3Q4/3Q1r1N/1q1Prp1p/2k1bPnb/2qb4/3PNB1n/1q1BnRrQ w - - 0 1 illegal: Other
1k1Nb1q1/Rq2KB2/4pr2/q1BrPpb1/4n1R1/3rRQ1P/3Pn3/1r2bQ1n w - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 c4 axb4 Nc3 d5 Ne4 dxc4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kd7 e4 b5 a4 f5 a5 c5 e5 Kc7 a6 f3 Ke3 c3 Kf4 g3 a7 c4 g6 g2 Kg5 f2 g7 e6+ Kg6 b3 Kf7 b2 h3 b1R Qf3 c2 Qf4 c3 Qg5 b4 Qh6 b3 Qe3 b2 Ne2 g1B Qg5 Nc6 Qf4 Nd4 Ng3 Bd7 Qg4 Ne2 Qh4 Be7 Qg5 Rh6 Qh4 Nf6 g8Q Ne4 Qf8 Bg5 Qa3 Be8+ Kf8 Rb8 a8R Rb5 Ra4 Rd5 Qf4 Kb8 Bg2 f1R Bf3 Qa5 Bh5 Rf3 Bf7 Rf6 Ke7 Rfd3 Qf1 Bf2 Ra2 Be1 Rg1 Nf4 Ne2 Nh5 Rg4 Nhg3 Nd4 Nh1 Rc4 Ra1 Rg3 b1Q Re3 Qbb5 Qb3 Rb1 Ba3 c1N Bc5 c2 Rca4 Ne2 Nc6+ Kb7 Rc4 c1Q Nd8+ Kb8 Raa4 Qa3 Qc3 Qa8 Ra7 Qaa5 Rd4 Nef2 Rg4 Ne4 Qb3 Qbb7+ Kf8 Ba4 Nc6+ Kc8 Qd1 Nc1 Qdf3 Ne2 Ke8 Kc7+ Ke7 Qg8 Nd8 Bd7 Bh5 Be8 Bf7 Kb8+
4NNr1/4QrQ1/KpB3R1/n1npq2b/1NrP1Pn1/1kB1q3/1b1b1rP1/7q w - - 0 1 legal: proof: e4 a5 b4 axb4 a4 g5 h4 gxh4 e5 c5 e6 c4 Ra3 fxe6 Qf3 e5 Rb3 cxb3 Qd1 e4 Ke2 Kf7 f4 Ke6 d4 Kd5 a5 Kc4 c3 e5 a6 h5 a7 d5 Bd2 b6 Qc1 h3 Qc2 h2 Be3 h4 Qb2 h3 Nf3 Qg5 Qa2 Nc6 Qa1 b2 Qa3 b3 Rg1 h1R Nh2 Nf6 Qa2 Ng4 Nf3 h2 Nh4 Na5 Qa3 Rh7 Ng6 Rf7 Bd2 e3 Qe7 e4 Be1 Rb8 a8Q Qe5 Qaa7 Bd7 Kd1+ e2+ Kd2 Be8 Qab7 Rh7 Qg7 Ba3 Nf8 Bh5 Qbe7 Ra8 Qh6 Rf7 Qg7 Kb5 c4+ Ka4 Kc3 e3 Bd2 e1Q c5 e2 c6 Qf2 c7 e1B c8N Qfe3+ Bd3 Rb8 Rf1 Ra8 Rf2 Rf1 Nd6 h1Q Rf3 Rf2 Rg3 Rb8 Ne6 Rg8 Ne8 Bc5 Na3 b1R Nf8 b2 Nc2 Ba3 Nb4 Ra1 Kc2 b1N Ba6 Bb2 Bb7 Ka3 Ba8 Nc3 Bc6 Ne2 Bc3 Bd2 Qgg5 Nc1 Qg7 Nh2 Rg4 Ncb3 Rg6 Nc5 Rd6 Na4 Rg6 Be1+ Bd2 Nc5 Nd3 Bc1 Kc3 Ka2 Kb4 Ng4 Kb5 Bb2 Nb4+ Kb3 Na2 Rc1 Nb4 Rc4 Bc3 Nd7 Ka6 Bd2 Qh4 Nb7 Qg5 Na5 Qe7 Nc5+
qQ5B/3B1p2/1nrpRQNN/4n2P/q1nPK3/P1b1b2Q/1b1r2r1/2q1k2b w - - 0 1 legal: proof: g4 c5 f4 h5 b4 hxg4 f5 cxb4 f6 a5 a3 a4 Ra2 exf6 Rb2 f5 Rb3 axb3 Bh3 f4 Bg2 Bd6 Bf1 Bf8 Kf2 Ke7 h4 Kf6 c4 Ke5 e4 Kd4 c5 b5 h5 g5 e5 b2 c6 d6 c7 b3 d3 b4 e6 g3+ Kf3 g2 e7 g4+ Ke2 f3+ Kd2 g3 e8Q f2 Qa4 Ne7 Rh3 Nec6 Be2 f1Q Rh2 Bb7 c8Q Bg7 Qe1 Qf4+ Kd1 Nd7 Nd2 Kc3 Qa7 b1R Qe3 b2 Qb8 b3 Qe6 Qa4 Bf1 Nce5 Ke2 Ra6 Ke3 Rg8 Qd5 Nb6 Nh3 g1B+ Nf2 g2 Qa7 Qa8 Qe6 Ra1 Qg6 b1Q Qf6 b2 Qb8 Ra2 Nf3+ Kc2 Bd2 Qc1 Nh4 b1N Ng6 Bh8 Rh4 Bh2 Be2 g1B Bg4 Bh1 Bd7 Rg7 Re4 Bf4+ Ke2 Be3 Bc3 Nd2 Qf1 Ndc4 Ng4 Bgf2 Bb2 Be1 Nh6 Bc3 Qh3 Rg8 Nh4 Rg5 Ng6 Rg2+ Qf2 Nc6 Kf3+ Kd1 Re6 Bhe5 Ba1 Rd2 Ke4 Bf6 Qf4 Ke1 Qff3 Bh8 Qf6 N6e5+ Bc6 Bb4 Ne7 Ng4 Qc3 Nd5 Bd7 Rc6 Ng6 Ndb6 Qe5 Bf6 Qf5 Bd8 Bh8 Bf6 Qg5 Bb2 d4 B4c3 Qf6 Nge5
b1B5/P5qn/bN4qq/p1kp3n/RN5N/PQ2rP2/Qr1bqr1R/2nK4 w - - 0 1 illegal: Other
1Kn1N3/P1q1q1r1/2P1qp1N/4rQ2/bnn2R1b/5P1r/pB1kb1R1/1R2qQ2 w - - 0 1 illegal: No proof kernel
2rr4/kqn4P/2r1nbqq/1np1bBN1/1PR4Q/qp2QKBb/1BP5/4N3 w - - 0 1 illegal: No proof kernel
2b2qQ1/p2b1rp1/NPqQ4/1n2qRnK/1P1b1B2/1b2R1P1/B1B2nk1/rr6 w - - 0 1 illegal: Other
rr2B3/1PQq1pbb/1rN1b1k1/Q5nq/pn4bB/n4Pq1/K4P1B/2N4R w - - 0 1 illegal: Other
2B1rq1k/pQnKB1q1/1PN2qbP/R7/5N1B/PnrpnQ2/2bb4/3q3r w - - 0 1 legal: proof: d4 b5 c4 bxc4 b4 f5 g4 fxg4 d5 h5 d6 h4 Nd2 exd6 Rb1 d5 Rb3 d4 Rg3 hxg3 f4 Kf7 h4 d5 e4 g5 Ke2 Kg7 b5 c5 b6 d3+ Ke3 c3 a3 c2 e5 g2 f5 c4 Kd4 g3 h5 g4 e6 c3 Ke5 d4 e7 Nf6 e8Q Nd5 Bb2 c1N Qb3 c2 Qc3 Nb3 Qc5 c1R Qd6 Ne3 Qa4 Na6 Ne2 g1Q Qb5 g2 Qe6 g3 Qec6 Rc3 Nf3 d2 Qbd5 d1B Qb7+ Nc7 Nf4 d3 Nd4 Bc2 Qf3 Bb4 Nc6 Qf8 f6+ Kg8 Bc1 Qf2 f7+ Kg7 Rh2 g1Q Bh3 g2 Bd2 Bd7 Be1 Be8 Bc8 Qh1 Rh3 g1Q Rg3+ Kh7 Rg5 Qff1 Rf5 Qgg2 Bh4 Qgg7+ Ke4 Qd1 Rd5 Qhf1 Ra5 Qfg8 f8B Bg6+ Rf5 Rb8 Bfe7 Q7f8 Ke5 Qgg7+ Bhf6 Ba5 Kd6 Kg8 Rg5 Rh7 Kd7 Kh8 Qa6 Bb4 Ra5 Rh6 Bh4 Qff6 Bb7 Re8 Bc8 Qff8 Be1 Qf2 Qb7 Qh4 Bf2 Qhf6 Bh4 Rc5 Ne6 Bd2 Nf4 Rc3 Be1 Bh7 Bg3 Rg6 Bf2 Rg1 h6 Rh1 Bh4 Bg6
R2r4/2p1NPK1/1rPk1rbn/1Q2rPn1/1q2r3/bNQnp3/2r1b1B1/3R1Q2 w - - 0 1 illegal: Other
2r1k3/Rp3q2/nP1r3n/5r1n/3b2N1/2K1P1BR/r1pPr2B/rBb1Q1Qb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 b5 dxc4 Nc3 e5 Nd5 exf4 Nb4 axb4 h4 c5 a4 f5 a5 g5 h5 g3 b6 g2 h6 f3 h7 f4 a6 b3 e3 f2+ Ke2 b2 a7 b1R Bb2 g4 Rh2 g3 Bd4 c3 Kd3 c2 Rh1 c1B Ra2 c4+ Kc3 f3 Qe1 Qe7 Rh5 Nh6 Be2 f1R Bf6 f2 Rb5 Bf5 Qd1 Na6 Bd3 Ra1 Qg4 Qf7 Qh3 Be4 Rh5 Bc5 Nf3 g1R Qg4 g2 Qg7 Rd8 Ra5 Rd6 Rh3 Ra2 Bh4 Re1 Qg3 f1R Nh2 Rf5 Ng4 Re2 Bb1 Rh1 Qe1 g1N Bg3 Bf3 Rh2 Nh3 Ra3 Rf8 h8B Nf4 Be5 Nh5 Rh3 Rg1 Ra4 Bh1 a8Q+ Ke7 Nh2 Rc8 Ng4 Ke8 Bh2 Rgf1 Beg3 Nb4 Bc2 Ba3 Qf2 Rb1 Qa6 Rba1 Qe1 Bc1 Bb1 Rg2 Qb5+ Rcc6 Ra7 Na6 Qg1 Rgf2 Qb3 Rc8 Qbd1 Re2 Qde1 Ra5 Kc2 c3 Ba2 Ra3 Bd5 Ra4 Kb3 c2 Kc3 Ra5 Ba2 Ra4 Bb1 Ra5 Qg2 R5a2 Qgg1 Bd4+
5N2/3p2Kr/bPq5/3r1N2/bRbQbrR1/n2p4/QPRP1rnk/nB4b1 w - - 0 1 illegal: Other
4k3/BR4n1/p4P1P/P1qnnrN1/nb2Rq2/brn1Qb1p/2n2K2/2NNQ3 w - - 0 1 illegal: No proof kernel
2K4n/1n1Q1n1q/b1QnPP2/4n3/p2rRq2/P6k/NnQpB1Rb/2b3Br w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Ne4 hxg6 Bg2 g5 Ng3 fxg3 Bf1 g4 Kd2 Ke7 h4 Kf6 e4 d5 b4 c5 f4 a5 f5 g5 a3 d3 Kc3 d4+ Kb2 a4 h5 d2 h6 c3+ Kc2 d3+ Kb1 c2+ Ka2 g2 b5 g3 h7 c4 b6 c3 b7 g4 e5+ Kg5 f6 Nc6 b8Q Nh6 e6 Na5 Qd6 Qc7 Qd5+ Nf5 Qc4 Bd6 Qe4 Nb7 Nh3+ Kh4 Qe5 g1N Qe3 g2 Qee2 g3 Nf4+ Nh3 Qe5 g1N Qa5 g2 Bb2 c1B Be2 c2 Bd4 Nf3 Re1 g1N Qc3 Ne5 Qc6 Ng5 Nd5 Ngf7 Nb4 Nh3 Bg1 Nf4 Qd7 Rd8 h8Q+ Kg3 Qg7+ Nfg6 Qc6 Kh3 Rb1 Qd7 Rb2 Ngh8 Ka1 Bb8 Na2 N5d6 Qg6 Ng5 Qe8 Qh7 Qed7 Ra7 Bf3 Ra5 Re4 Ngf7 Bh5 Rd5 Be2 Rd4 Qc3 Nb5 Qcc6 Nc5 Rb3 Nf3 Qdb7 R4d5 Qcb6 Rf5 Bf2 Bh2 Rg4 Rd4 Be3 Nbd6 Qd7 Ba6 Rg2 Ncb7 Qbc6 N3e5 Bh5 Rf1 Rc3 Rh1 Bg1 Qe4 Rb3 Qf4 Be2 Re4 Rb4 Rc4 Nc3 Bb2+ Ka2 c1N+ Kb1 Re4 Na2 Rc4 Qb3 d1Q Qc3 Qdd2 Qc2 Re4 Rc4 Bd4 Rb4 Be3 Kb2 Qf5 Rc4 Qh7 Rd4 Qd1 Kc3 Qf1 Kb4 Qf4 Rc4 Nb3 Rd4 Bc1 Rc4 Nd2 Rd4 Nbd8 Ka5 N8b7+ Kb6 N2c4+ Kc7 d2 Kb8 Nb2 Kc7 Re3 Re4 Rd3 Kb8 Rd4 Kc7 Nf5 Kc8 N5d6+
kbR2q2/1NBpnRr1/B4r2/1bPP1QnR/2K5/P3b1rn/1bpb4/2n4Q w - - 0 1 illegal: No proof kernel
R7/3N2Q1/nBB1k1bQ/1P2r3/pnP1b1K1/1rb1b1q1/P2bp1Br/3q1bR1 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 c4 c5 h5 cxd4 h6 b4 Nc3 bxc3 Qg4 gxh6 Qe2 h5 Qd1 h4 Ke2 Kf7 b4 d5 f4 e5 g4 h5 b5 a5 f5 e3 Kf3 a4 f6 e2 g5 e1B g6+ Ke6 f7 h3 g7 h4 Qd3 c2 Qa3 d3 Bg2 e4+ Kg4 e3 Bb2 c1B Rb1 d2 Kf4 d1Q Ne2 d4 Be4 d3 Kg4 h2 Bf3 h3 Qc3 d2 Ba1 Bc5 f8Q Nf6+ Kf4 Na6 Bg2 Qd3 Qb4 Nd5+ Kf3 Rh4 Qa3 Ndb4 Rg1 h1B Qd8 h2 Qc7 Rh3+ Kg4 Bb2 Qa7 Bc3 Qc1 Bd7 Bc6 Be8 g8B+ Bf7 Bh7 Bg6 Qg7 Re8 Rg2 Rf3 Ng1 e2 Bb2 Be3 Ba3 Rh3 Nf3 Re7 Rf2 Bg2 Ne5 h1B Nd7 Rh2 Rf8 Bf1 Ra8 Bhe4 Ra1 Q1c2 Rb1 d1R Bb2 Bcd2 Bd4 Bc3 Bb6 B1d2 Qb2 Rc1 Qh6 Qd1 Ra1 Rb1 Bg8+ Kd6 Bf7 Re5 Bfd5 Bh1 Bg2 Ke6 Qa3 Rb3 Qg7 Nd5 Qaf8 Ndb4 Qfh8 Qd6 Qhh6 Qc7 Bh3 Be4 Bg2 Qb8 Qgh7 Qc1 Q6g7 Qh8 Bf3 Bg2 Rb1 Qc2 Rg1 Qd1 Qh5 Bf1 Bg2 Qf8 Qhh8 Qf2 Qhh6 Qg3+
qBNRQ3/rQ1q3K/BNrpPp1N/1P6/b4q2/2bnrP2/4rnr1/6rk w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 h5 bxa4 h6 gxh6 Rh4 h5 Rh1 h4 Kd2 a5 Kd3 h5 Ke4 d5+ Kf4 Kd7 Kg5 Ke6 b4 Ke5 e4 d3 c4 h3 g4 d2 c5 a3 f3 a2 c6 h4 c7 d4 Be2 h2 Qb3 d1Q Ba3 d3 Nd2 a4 Qc3+ Qd4 Nh3 Nf6 Rg1 h1R Rg2 Bg7 Nf4 h3 Qc2 h2 Ne6 Ra6 Nf4 Nc6 Bb2 a3 Qc3 Re1 Nd5 h1R Nf1 d2 Qd3 R8h2 Nfe3 Rhg1 Nf5 Bd7 Rc1 a1R c8N a2 Rf2 Rhg2 Bf1 Re2 Ndb6 Ra7 Rc3 Rc1 Qb1 a1Q Nh6 Qda4 Rb3 d1R Rd3 Rde1 Ba3 Re3 Rfd2 R1e2 Qb3 Qc4 Rd6 Be8 Rd1 Qcd4 Rd8 Qd7 Rd6 Qd4 Qb1 Qd5 Qb3 Kd4+ e5 Ne4+ Kh5 Nf2 g5 Rcc2 e6 Ne5 g6 Rc6 Bc1 Bh8 g7 Ned3+ Nf5+ Ke5 Kh6 Kf4 g8Q Bc3 Kh7 f6 Nh6 Qd4 Qf8 Kg3 Bd2 Kh2 Qb1 Re4 Bf4+ Kh1 Qb3 R4e3 Qd5 Bh5 Qe8 Qa6 Qb5 Qab7 Qa6 Qa8 Qb7 Qc4 Rd5 Bf7 Bb8 Qf4 Rd6 Bg6+ Kg7 Be4+ Kh8 Bd5 Kh7 Bb3 Qc7 Nb2 Rd2 Re1 Ba6 R1e2 b5 Ba4 Rd6 Nbd3 Qb7 exd6+
2nBr2r/3P3N/r1B2p2/rN2p1n1/Q2brRq1/2rQ1P2/2QPb1k1/1K3bq1 w - - 0 1 illegal: Other
n1K3Rn/1pQ3P1/Q1r2q2/2p3qQ/1PqPq3/nN2k3/1b4b1/1Bqq1RNr w - - 0 1 legal: proof: h4 d5 f4 e5 c4 dxc4 b3 exf4 h5 a5 h6 a4 Bb2 a3 Rh2 axb2 Rh5 gxh6 Rh2 h5 Rh1 h4 Kf2 Kd7 Kf3 Ke6 Ke4 h5 g4 f5+ Kf3 Kd5 e4+ Kd4 a4 c5 e5 c3 a5 c2 e6 c1Q g5 h3 a6 h4 d3 h2 g6 h3 e7 Nh6 e8Q Bg7 a7 Nd7 b4 Nb6 Qf7 Qg5 Na3 b1N Qe6 Nf7 Nc4 Na3 Ke2 f3+ Kf2 f4 Qf5 Rh4 Qd2 Nh8 Na5 Bd7 Qe2 Rc8 a8Q Rc6 Qd8 Na8 Qc7 Be6 Qg4 Bd5 Qh5 Be5 g7 Qc4 Ke1 f2+ Kd2 Bg2 Re1 Bf6 Qe6 Be5 Qeg6 Bf6 Re8 Be5 Be2 f1Q Rg8 Qb1 Bg4 Qbc1+ Ke2 Bf6 Bf5 f3+ Kf2 Qh6 Kg3 f2 Nb3+ Ke3 Be4 Bb2 d4 f1Q Qgd6 Qff6 Bb1 Ra6 Qdc6 Rb6 Qa4 Rc6 Qa6 Qd1 Nf3 Qdc1 Rf1 h1Q Ng1 h2 Rf2 Rh3+ Kg4 Qd8 Kf5 Qg6+ Ke5 Qgg5+ Rf5 Qf8 Nf3 Qhd1 Ng1 Qgg4 Rf6 h1Q Rf1 Qg5+ Rf5 Bf1 Qb5 Qhf3 Qa6 Qh4 Rf4 Bg2 Rf6 Qfg4 Rf1 Rh1 Qe7 Rc8 Kd6+ Qe4 Kd7 Qg5 Qed6 Rc6 Qc7 Qf2 Kc8 Qff6
1Q4n1/Q1n1q2r/pn1kB3/KRRn4/bN2R1Np/P3P3/P2rrb2/3nr1b1 w - - 0 1 illegal: Other
1K1nb3/2r1RbR1/5BpQ/knP3bN/N2rR1q1/Qb1r2n1/1P2p1P1/5bn1 w - - 0 1 illegal: No proof kernel
3n1q2/k1P1R3/N3pQR1/r1p1B3/1q1P2n1/3q2N1/1bq1Pbq1/NKQq1br1 w - - 0 1 illegal: No possible last move, all moves rejected
NQRQ4/n1p3rp/3K4/1Q3bb1/n3q2B/1bPnn3/N1P1k2P/Bn1rb1r1 w - - 0 2 illegal: Other
BB4r1/qpQq4/3Rq2r/2n2Nqp/n1Kb2Qr/P4b1P/P3k3/r2N1rB1 w - - 0 1 illegal: Other
1n1nNnrQ/1q1k2p1/3b4/1r2bn2/qB1bpRB1/6Q1/P2PP1RQ/K2n3b w - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Nc3 h4 Ne4 dxc6 Ba3 c5 Bc1 c4 Ng3 hxg3 h4 e5 f4 b5 h5 c5 f5 c3 f6 c4 f7+ Kd7 h6 g2 h7 c2 Rh6 c3 Ba3 c1N Nf3 g1B Rf6 g3 Rc6 g2 Qc2 b3 Kd1 b4 Rg6 b2 Rh6 b1Q Rh3 b3 Qg6 b2 Qc2 Ne7 Nh2 Qe8 Ng4 Bh2 Rh4 g1B Qd3+ Bd4 Bd6 c2+ Ke1 Nf5 Bh3 Rg8 h8Q Ra5 Rh5 Bb7 Qa6 Bh1 Qc4 e4 Qb3 Bhe5 Rg5 Rb5 Bb4 Be7 f8Q B7d6 Qe3 Nb3+ Kf2 c1N Ke1 Bb6 Kd1 Nbd4 Qg3 Ne6 Qhh4 Bbd4 Nf6+ Kc8 Qh2 Nd8 Q4g3 Qc6 Ne8 Kd7 Bg4 Qb7 Rg6 Qc2+ Ke1 Qc4 Kd1 b1N Rf6 Nc3+ Kc2 Nd3 Rg1 Nd1+ Kb1 Nf4 Rg2 Nfe6 Rf7+ Ne7 Rf1 Nf5 Rf4 Rh8 Qg8 Nf8 Qgh7 Rg8 Qh8 Nc3+ Ka1 Qb3 Qgh4 Qa4 Q4g3 Nd1+
1NQ3rr/q1P3br/1p4N1/1kn1QqPp/5K1n/r1B2Q1R/q4qbP/1r1R4 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 g5 f5 a5 e3 axb4 f6 g4 Bb5 exf6 Bc4 f5 Be2 f4 Bf3 gxf3 Kf2 d5 a4 Kd7 g4 Kc6 c4 f5 g5 h5 a5 b6 a6 b3 a7 b2 e4 d3 e5 d2 e6 d4 e7 d3 e8Q+ Qd7 c5 Nh6 Na3 b1R Bb2 Bg7 Qf8 Na6 Qe8 Bb7 Qee2 Rag8 Qb3 d1R a8Q d2 Qed3 Qf7 Qb4 Qa2 Qdd8 Rdc1 Qbd4 d1Q Qd3 Qa4 Qc4 Rc3 Nb5 Ra3 Qc3 Rh7 Nc7 Rhh8 Ne6 Kb5 c6 Nc5 c7 Qa7 Qac8 Ba8 Qd1 Rh7 Kf1 f2 Ke2 f1R Nf8 f3+ Ke3 f2 Kf4 Bg2 Nf3 Re1 Qf6 f1Q Qe5 Qf2 Nd7 Rgh8 Bc3 Re3 Qf6 Ree8 Nb8 Reg8 Re1 Kc4 Re3 Kb5 Ke5 f4 Nh4 f3 Ng6 Nf5 Kf4 Nh4 Qe5 Qg1 Rd3 f2 Rh3 f1Q+ Qf3 Qd3 Qee2 Qf2 Qe5 Rb2 Rh1 Rb1 Rd1 Qf5+
qQ3nkb/r2bBb2/1NQ1p1bP/2pb4/2P1rB2/1nRRPRK1/8/n1n1q3 w - - 0 2 legal: proof: g4 d5 f4 h5 b4 g5 c3 gxf4 b5 d4 g5 d3 Na3 a6 Bg2 axb5 Nc2 dxc2 Bh3 b4 Bg4 hxg4 Kf2 f5 h4 Kf7 d4 b5 a4 c5 a5 g3+ Kf3 e6 d5 b3 e3 b2 a6 b1B c4 g2 d6 b4 h5 b3 a7 b2 d7 Nf6 g6+ Kg8 g7 Ne4 Ra2 Nd2+ Kf2 f3 Rh4 f4 Rh1 Nb3 Ne2 Na1 Bd2 c1N Ra5 Bg6 Rb5 b1B Nc3 Bf7 Rb3 Bbg6 Rf1 g1Q+ Ke1 Qa5 d8B Nd7 Nd5 Qa3 B2a5 f2+ Kd2 f3 Nb6 Bd6 Rd3 Nf8 Be7 Be5 Qa4 Bd7 Qc6 Bb2 Rc3 Qa2 Rd1 f1B Ke1 Qh1 Kf2 Bg2 Kg3 f2 Rd2 Qe1 Rdd3 Bd5 h6 f1N+ Kg4 Rd8 a8Q Nd2 Qb8 Ndb3 Kh3 Rh7 Kh2 Qd1 Kg3 Qa3 Nc8 Qh1 Bc7 Qa8 Bf4 Qe1+ Kh2 Bde8 Nb6 Rd6 Kh3 Bd7 Kg4 Bf3+ Kh3 Rd4 Kh2 Re4 Kh3 Qd1 Kg3 Qe1+ Kh2 Bfe8 Rd6 Bgh5 Be5 Kf7 g8R Bc8 Rc2 Rg4 Rd3 Bd5 Bd8 Re4 Bf4 Bh8 Rg3 Bg6 Rcc3 Kg8 Rf3 Ra7 Be7 Bcd7 Kg2 Bef7 Kh3 Qd1 Kg3 Qe1+
1bQn2Nn/1nR5/p1bp4/1P1r2r1/nqQb1nK1/8/BkPP2bq/3R2BQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 b5 c5 Nc3 e5 Nd5 exf4 Nb4 cxb4 Kf2 Ke7 Kf3 Kd6 e4 Kc5 g4 h5 e5 f5 e6 a3 g5 b3 g6 Kb4 g7 a6 e7 a2 e8Q h3 Ne2 h2 Rb1 a1B Qe3 h4 Rb2 Ka3 Qb6 h3 Qf2 Ne7 g8Q Nbc6 Qf7 Ng6 Qh4 Qa5 Qg3 Rh5 Qe6 Bd6 Qe7 Nd8 Qe3 Bb7+ Qe4 Qb4 Nd4 Rg5 Qc6 Bb8 Be2 Nh8 Qe4 Bc6 Re1 h1B+ Qg2 h2 Kf2 f3 Rg1 f4 Qh3 Bg2 Qe8 h1Q Qhe6 Qh2 Qf1 d6 Rh1 Rd5 Ke1 f2+ Kd1 f3 Rb1+ Ka2 Ba3 b2 Qg1 f1N Nf5 f2 Nh6 Ng3 Ng8 f1N Q8f7 Ne4 Qc8 Nc5 Bc4+ Qb3 Ke2 Ne3 Qff1 Ncb7 Rd1 b1N Bc5 Kb2 Ba7 Qa4 Ba2 Qb4 Kf2 Nc3 Qc4 Na4 Qgf1 Bh3+ Kf3 Ng2 Bg1 Nf4 Qe1 Bg2+ Kg4 Ka3 Qh4 Bd4 Qe1 Kb2 Qef1 Qh6 Rh5 Ra7 Rf5 Qh2 Rf7 Na5 Rh7 Rd7 Rg7 Nab7 Qf3 Re7 Qff1 Ree5 Rc7 Rh5 Qf3 Bf1 Qh1 Bg2 Bb1 Rhe5 Ba2 Rg5#
3B1q1K/R2q1p2/r1Q1QPRn/3b1Nr1/1pBnn3/1P1b1b2/qP1b2R1/2qk4 w - - 1 2 illegal: Other
5q2/p2k2q1/P3bq1R/2r1rBP1/1RnnK2R/p3n1q1/P1rbN2B/QnQ5 w - - 0 2 illegal: Other
1Q1bq3/p1B1n3/P3rP1r/2n1Kb2/RpBN4/P2QB3/1r3nr1/q2Rqq1k w - - 0 1 illegal: Other
1NQ1K3/r5qB/1R3QNr/pnrq1n1R/Pr1Rbp1b/1q1P1P1k/2b5/3q4 w - - 1 2 legal: proof: h4 b5 c4 bxc4 e4 d5 h5 dxe4 h6 c3 b3 gxh6 Ne2 h5 Bb2 cxb2 Ng1 h4 Ke2 Kd7 Ke3 Ke6 Kf4 h5 Kg5 f5 Kg6 c5 a4 a5 g4 h3 g5 c4 b4 f4 b5 c3 b6 h4 b7 c2 Ra2 c1R Bb5 e3 Ra1 e2 Qb3+ Qd5 Ra2 e1Q Qb4 h2 Be8 h3 Qb3 Ra7 Na3 b1R Nb5 Na6 b8Q Qe3 Qd1 Nh6 Qc7 Qeb3 Qb7 Nc7 Bc6 Nf5 Rb2 Rc5 Nf3 Bg7 Qb8 Bf6 Nh4 Ke5 Nd4 e6 Kf7 Rh6 Qa8 Nb5+ Bb7 Qd7+ Kf8 Qg7+ Ke8 Bd8 g6 Be7 Rg1 h1B Rg5 h2 Rh5 Be4 Nc6+ Kf6 Qe2 h1Q Nb8 e5 f3 Qhd1 Ba6 Bcb7 Qc4 Bc2 Qd4 Bbe4 d3 Qd5 Bc8 Bd8 Rb4 Be7 Rc4 Rb4 Be6 Qb1 Bg8 Qb3 Bh7 Ke6 Ng2 Bh4 Qb2 Kf6 Rd4 Bd1 Qb7 Bc2 Qc8 Bg5 Rh3 Bh4 Qc3 Kg5 Qa1 Qgb7 g7 Kh5 g8R Qg7 Rh2 Qg3 Rf8 Qg7 Qe1 Kg5 Rh3 Bg3 Rc4 Bf2 Ne3 Bg3 Qc3 Be1 Rg3+ Kh4 Rg5 Kh3 Ng4 Bh4 Qa1 Ng3 Rh5 Bg6+ Rf7 e4 Qf6 e3 Rd4 Be4 Ne5+ Nf5 Rb7 e2 Ng6 e1Q Rb6 Qd1
1Kb3qQ/2n4b/Pq1Rr3/1N1qP3/p1nn4/Pn1p1bk1/5br1/1R1QBBQ1 w - - 0 1 illegal: Other
2KB3R/1r3P1b/1Pqp1Qnb/1b1Q4/1q2n1b1/p2qqB1n/P1R2R2/3Nk2r w - - 0 1 illegal: No possible last move
1NRrb3/1n5k/Q2p4/PQr1RN2/3P1r2/2p3Pn/K1bbB3/Nbq1q1nn w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 f5 bxc4 b5 e6 Bb2 exf5 Ba3 f4 Bb4 axb4 a4 f5 e4 Kf7 d4 Kg7 Kd2 h5 Kc1 c5 Kb2 f3 a5 d6 e5 c3+ Ka2 f4 g3 c4 b6 c2 e6 c1Q b7 c3 e7 h3 e8N+ Kh7 Qa4 f2 Qd1 f3 Qe1 h2 Ne2 h4 Rg1 h1B Nf4 h3 Ne6 h2 Kb3 Nc6 b8Q Nf6 Qb5 Qe7 Qb7 Nd8 Qe3 Ng4 Nd2 Bd7 Qf4 Rc8 Qd5 Nb7 Bh3 f1N Qb5 f2 Nc5 Be4 Qe2 h1N Na6 Nfh2 Ka2 f1R Rb1 Nf3 Qb5 Ngf2 Nb3 Rc5 Nb8 Bh6 Bg4 Bc2 Na1 Nh3 Ng7 Be8 Nf5 Qee1 Qe5 Rf8 Qee2 Bd2 Qa6 Rg8 Qeb5 Rh8 Rg2 Nfg1 Re2 Rf4 Re5 Rg8 Rb2 b3+ Ka3 Qe3 Be2 Qe1 Rb1 b2 Ka2 Q1f2 Rf1 Qe1 Rf3 Qc1 Bd1 Qe1 Be2 Rc8 Rfe3 Rg5 Rc5 Rd8 Rc8 Rh5 Ne7 Re5 Nf5 Rc5 Re5 b1B+
5B1Q/Pn2R1N1/bRq1b2K/qq1pp3/1P2b3/Q1rPb3/2nk1rRN/q3n3 w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 g5 c5 gxh4 c6 a4 Ba6 bxc6 Bc4 c5 Bb3 axb3 Qf3 c4 Qg4 Ba6 Qd1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 d5 a4 h5 g4 e5+ Ke3 Kg5 f3 c5 a5 h3 a6 h4 a7 c3 Ra3 c2 Nc3 b2 Nb5 b1B Ra5 c4 Na3 c3 Rc5 h2 Rc4 h3 Ne2 Bh6 Nf4 Ba6 Rf1 h1B Rc7 h2 Rb7 Nd7 Nb5 Rc8 Nd4 Ngf6 Nh5 Qa5 Rb6 Rhf8 Qe2 Bg2 Qd3 h1Q Rg1 Bh3 f4+ Kh4 g5 Be6 f5 Nc5 Rg2 Nb7 Ke2 e3 Kf3 e2 g6 Ng4 f6 Kg5 f7 e1N+ Kg3 Qf1 g7 Ne3 g8R+ Bg7 Rh8 Bh6 Rh7 Qe2 Nf6 Qf1 Ng4 Rc7 Kh3 Kf4 Kh4 Rcc8 Kh5 Bg5 Ba3 c1Q Nh2 c2 Nf5 Bh6 Qc3 Qfb5 Bb2 Rc4 Qa3 Qd1+ Kg6 c1Q Bd4 Be4 d3 Qcc2 Bc5 Qa1 Bd6 Rcc8 Rg7 Qc7 Kh5 N3c2 Be7 Qcd7 Bd6 Rc3 Bc5 Rb8 f8Q Qdc6 Qh8 Rf8 Rh7 Rf7 Bf8 Rf6 Rd7 Rf7 Ng7 Ke3 Re7 Rf2 Qb3 Kd2 Qa3 Bf3+ Kg6 Bf4 Kh7 Be3 Kg6 Be4+ Kh5 Bd4 Kh6 Be3+
q2b4/R2nr2r/N2k3p/Pb2R2n/QNPB4/2pKn2P/qQ1q4/1Nr3nq w - - 0 1 illegal: No proof kernel
Q2Nr3/bqk3pP/P1B1Q1qb/3r1pn1/1B4Pn/1N1b1B2/K7/1nbqq2R w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 h4 f6 exf6 Ra2 f5 Ra3 f4 Rg3 hxg3 d4 Kd7 Kd2 f5 Kc2 c5 Kb2 b5 h4 c3+ Ka1 g2 e4 c2 a5 f3 h5 f2 h6 b3 d5 b4 e5 c4 e6+ Kc7 h7 b2+ Ka2 c3 e7 b3+ Ka3 Ba6 Nd2 b1Q Qe2 b2 Ne4 Nf6 Qb5 Qe8 Nc5 Nc6 Nh3 g1Q Nb3 Ne4 Ng5 Qg6 Nc5 Re8 Bd2 c1B Nf7 c2 Bd3 f1Q Bb4 Ne5 Be2 Qd1 Nd8 Qge1 Qc4 Bh6 Bf3 c1B Qa2 Ng5 Nb3 Bd3 d6+ Kb8 d7 Kc7 a6 Rg8 Be4 Nef3 Bb7 Nh4 Bf3 Qe3 Na5 Qa7 Qe6 Qb7 Nb3 Rh8 Bd5 Qe1 Bf3 Qc2 Ka2 Qcd1 Nf7 Rd8 e8B b1N Qd5 Ra8 Qe6 Bc5 Nd8 Rc8 Nf7 Ba7 d8Q+ Kb8 Bec6 Re8 Qdd5 Rcd8 Qde4 Rd4 Nd8 Kc7 Q4e5+ Kb6 Qb8 Rd5 Qa8 Kc7
2b2qN1/4P1PB/2R2bpr/5n1q/Rr3p1B/1Q1Q2P1/1Qqn2b1/2Knk1bq w - - 0 1 illegal: Other
1R1q4/1rR2b1P/qnp3qb/6qn/N1k1KR2/P1Pp1Q1Q/r3b1B1/2Nbr3 w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nh3 h4 Bf4 fxg6 Be5 g5 Ng1 g4 Bg3 hxg3 Kd2 Ke7 Kd3 Ke6 e4 g5 h4 b5 f4 d5 e5 g2 c3 b3 h5 b2 h6 c6 h7 g3 Qe2 g4 Qf3 b4 Ne2 g1R Qg2 b3 Qe4 g2 Rh6+ Nf6 Qg6 g3 Na3 b1B+ Nc2 b2 Qh5 Nd7 Qh4 Ba6+ Kd2 d3 Ke3 d2 Kd4 d1B Ne3 Nb6 Nc1 Bae2 Nc4 Bg6 Qh5 b1Q Nb2 Ra3 Na4 Bf7 Qh3+ Qf5 Rh4 Nh5 Rg4 Qg6 Rb1 Bh6 f5+ Ke7 f6+ Ke6 Rb2 Rg8 Rb5 Rg7 Ra5 Rh1 Ra7 Rg1 Rc7 Qd3+ Kc5 Qa6 Kd4 Rh1 Qh4 Rg1 Rf4 Rh1 Ke3 d4+ Ke4 g1Q Bg2 d3 Qh2 Qc5 Qh4 Re1 Qh1 Rb3 a3 Rb2 Qh4 Ra2 Qh2 Be8 f7 Qg1 f8Q Bf7 Qh1 Qc5 Qf1 Qce7 Qf3 Qg5 Qc5 Qb8 Qce3 Qbd8 Bh1 g2 Qh3+ Qg4 Qef3 g1Q Bg2 Qc5 Nb3 Qce7 Nc1 Qg5 Rc8 Kd7 e6+ Kd6 e7 Qg3 e8R Q3g4 Nb2 Kc5 Na4+ Kc4 Rf8 Be6 Rg8 Rb7 Rc7 Bf7 Rf8 Qd6 Ra8 Qdd8 Rb8 Qg3 Rf6 Qgd6 Rf4 Qdg6+
n1r1k1q1/1p1R2q1/2Pq1bN1/1qQ5/1Pr1B2P/1p1rQ2b/1B3Bb1/RKn4b w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 g5 cxd4 g6 a4 Nd2 hxg6 Nb1 g5 Nd2 g4 Nb3 axb3 Kd2 d5 h4 g5 c4 e5 a4 e3+ Kd3 g3 f4 e2 f5 e1Q c5 g4 c6 g2 a5 g3 f6 Nd7 a6 Be7 a7 Nb6 Ra3 Qd6 Ne2 g1Q Bg5 g2 Bf4 Bh3 Be3 Rd8 a8Q Nh6 Ng3 Nf7 Qa7 Na8 Be2 Qef1 Qa6 e4+ Kd2 d3 Kc1 d2+ Kb2 d4 Bc4 d3 Qc1 d1B Bb6 e3 Ba5 d2 Qc3 e2 Qa7 e1R Nh5 Ne5 Qae3 Bf3 Ra1 d1B Kb1 Nd3 Bd5 Nc1 Nf4 Qb5 Ng6 Rc8 Qec5 Re4 Q3e3 Rc4 Bb6 Rh5 Be4 Rd5 Ba7 Rd3 Rh2 Bde2 Rh1 Bf1 f7+ Kd8 f8B Ke8 Bg7 Bf6 Qe1 Qgd4 Qe3 g1Q Rh2 Bh1 Rd2 Bfg2 Bh8 Bg5 Rd1 Q4d5 Bb2 Bf6 Rd2 Qg8 Rd1 Rdc3 Rd5 Rd3 Bb6 Qb8 Rd7 Qd6 Bc7 Qdf8 Nh8 Qh2 Bg3 Qh6 Bf2 Qhg7 Ng6 Qd6
b3r3/p3QN2/Rq1bn2q/1NRbQ3/P1bKnPB1/r1pR4/1q2P1q1/1n4k1 w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Nb1 hxg6 Bd2 g5 Bb4 g4 Be7 Rh7 Bh4 Rh8 Bg3 fxg3 Kd2 Kf7 f4 Ke6 a4 Kd5 h4 Ke4 b4 c5 b5 d5 h5 g5 h6 g2 h7 d3 Kc3 Ke3 b6 Kf2 b7 g3 Na3 d4+ Kb2 g4 Nf3 g1Q Ne5 c3+ Kb3 d2 Kc4 d3 Rc1 c2 Bh3 g2 Nd7 g3 Bg4 Nf6 Nb1 Nc6 b8R Bb7 Bh3 Qb6 Bf5 Ne4 Be6 Nd8 Nc3 Qh2 Ne5 g1N Rc8 g2 Ra1 c1Q Nc6 Qh6 Rb8 Bd6 Bf5 Nf3 Nb4 g1Q Bg6 Qg2 Be8 Ne6 Ra3 Qb2 Rc8 Bc6 Qc2 d1B Bd7 d2 Nb5 Rg8 h8Q Rg3 Rh3 Kg1 Qe5 Bb7 Rc6 Re8 Nd3 Ba8 Rh5 Rh3 Kd5 c4 Qcc3 Bb3 Qb4 d1B Rf5 Bf8 Qe7 Nfd2 Rg5 Nb1 Rh5 N6c5 Bg4 Ba2 Rc3 Bdb3 Kd4 Rg3 Qh8 Rh3 Ne5 Rf3 Nf7 Ne6+ Kd5 Re3 Rd3 Rg3 Qe5 Rh3 Q7f6 Bd6 Qe7 Bc2 Rd4 Ra3 Rd3 Bcb3 Rg5 N6c5 Rg6 c3+ Kd4 Bd5 Rf6 Bac4 Rf5 Qc7 Ra6 Qb6 Rf6 Bb8 Rc6 Bd6 Rc8 Ng5 Rc7 Nce4+ Rc5 Ne6+
1q1Q2B1/1n1P4/k1q2p2/bnqb1r1n/q2R1B2/r2P2Q1/1p1BNPK1/b3N1b1 w - - 0 1 illegal: Other
1K1b4/qpN2Qqr/3P2bB/4N1Rn/2b2n2/b2B1P1B/1Pqk1p1Q/2nr2n1 w - - 0 1 illegal: No proof kernel
1RrQ4/1p4n1/BP2pnr1/2k1b1N1/n1n1Pn2/2q1R2Q/2rrb1KP/B2B3n w - - 1 2 legal: proof: d4 a5 g4 c5 b4 cxd4 b5 h5 Qd3 hxg4 Qe4 f5 Nc3 g3 Qg4 fxg4 Nd5 Na6 Nb4 axb4 Kd1 Nb8 Kd2 Ra7 Ke1 Ra8 f4 g5 a4 d5 c4 Kd7 e4 Kd6 b6 d3 f5 b3 a5 d2+ Ke2 d1N a6 b2 f6 b1N a7 d4 f7 g2 Ra5 d3+ Ke1 g3 Ra6 d2+ Ke2 g4 Ra5 Nbc3+ Kd3 Nc6 Re5 Bg7 f8Q Nb2+ Ke3 d1R Qf3 Qc7 Rb5 Rd2 Rb4 Be5 Qf4 Nca4 Nf3 g1N Be2 g2 Kf2 g3+ Ke1 Bg4 Qe3 Nd8 Rb3 Nh3 Ng5 g1N Kf1 Ne6 Kg2 Rc8 a8Q Nf6 c5+ Kc6 Rd3 Nc4 Rd8 Nf2 Bb2 Ngh3 Re1 Ng7 Ba1 Nh1 Qa3 Kb5 c6 Rc2 Qc3 Kc5 Rg8 Rd8 Qc8 Rdd2 Qd8 Qc8 c7 e6 Rf8 Qd7 c8B Qc7 Bd7 Rg8 Bb5 Nf4+ Kg1 g2 Qh3 Qc8 Bd1 Be2 Ba6 Qc7 Qdd3 Qc6 Rb8 Rc8 Qd8 Qd6 Rf1 Qd3 Rf3 Qc3 Rd3 Ng3 Kf2 g1R Re3 Nf1 Nf3 Rg6 Ng5 Ng3 Kg1 Nd3 Kg2 Nf4+ Kf2 Nh1+ Kg1 N4h5 Kg2 Nf4+
K1bb2Q1/NnB1q3/2pbb3/2Pb1P2/5npk/r2N1b2/rB2n1P1/3QRNn1 w - - 0 2 illegal: No proof kernel
Rq1b2bR/1Pbn1q2/n7/1n1k4/2pP2KN/r1Prp3/1p1Q1Nr1/QqR1B3 w - - 0 1 illegal: No proof kernel
2Rb1Rn1/n1b4P/qNn1Qpkp/2Bb2P1/rQ3P1R/r2K3B/1q3qp1/6r1 w - - 0 1 illegal: No possible last move
1q2B3/rb2Qrnn/2p3k1/q5pb/q2BP1KQ/7Q/P1Pn1rpN/2bR2R1 w - - 0 1 illegal: No possible last move
3nR2B/7p/1B2r1RP/1r3nb1/1pnQKp1N/1Q1P1Pk1/r1Q2q1b/1bnn4 w - - 1 2 legal: proof: b4 d5 e4 dxe4 a4 b6 b5 c6 a5 bxa5 b6 a4 Bc4 Qd7 Bb5 Qd8 f3 cxb5 Ke2 g5 Nc3 g4 Nd5 g3 Nb4 Ba6 Nd3 Bc8 Nf2 gxf2 Ke3 Kd7 c4 Kd6 g4 Ke5 h4 f1N+ Ke2 Kf4 c5 a5 g5 e5 b7 f5 h5 a3 h6 a2 c6 b4 c7 a4 g6 a3 g7 e3 Rh5 e4 Qb3 Qh4 Rg5 Be7 Qb1 Nc6 b8B Qf2+ Kd1 e2+ Kc2 e1N+ Kb3 e3 Kc4 e2 Kd5 Nc2 Rg2 e1R Rg6 Bg5 Re6 Nfe3+ Kc5 Nge7 Qb2 Kg3 g8Q f4 Rf6 Bf5 c8Q Ra5+ Kd6 Rb5 Bc7 Re2 Qc4 Nd8 Rg6 Re8 Rb1 Bd3 Qf6 Be4 Bb2 Bf5 Rf1 Nd1 Re1 Bd3 Ba1 Nce3 Bb6 Bb1 Be5 a1B d3 a2 Q8c7 Qh2 Qb3 Bd4 Qh8 Rb2 Qcc2 Qd2 Bf6 Bc5+ Ke5 a1N Qa2 Nb3 Ne2+ Kf2 Nd4 Nc1 Qaa4 Ra2 Nf5 Qe2 Nh4 Kg3 Qab3 N7f5+ Be7 Nc4+ Kd5 Ne6 Bf6 Nd8 Bb2 Qf1 Re5 Qg2 Ke4 Bg1 B2d4 Bh2 Bb2 Rf8 Re8 Rf6 Qg7 Qd2 Qd7 Rc6 Bh8 Qf2 Qd4 Re6+
bK5r/1pn2nnk/q2P1b1P/1b3R2/3rB3/pP3pBr/1nR3R1/2N1QnQ1 w - - 0 1 illegal: Other
nnn1Q3/2R1B3/1Pp2bq1/q4B2/2NrK1bP/3p1np1/3r2Pq/n2BkN1Q w - - 0 1 illegal: No proof kernel
1b1n2b1/3r1pn1/1Q1q1Pp1/4bB1p/P4K1b/kn4BN/2BPR1qb/NQr5 w - - 0 1 illegal: No possible last move, all moves rejected
2QN1Q2/N3n2n/3K4/2B1Rp1n/3PbP1n/2p1k3/RnbpPb1q/3qNrr1 w - - 0 1 legal: proof: c4 e5 b4 a5 d4 axb4 h4 g5 c5 gxh4 g3 e4 Bh3 d6 Be6 dxc5 Bb3 c4 Bc2 Nd7 Bd3 exd3 Qc2 Nb8 Qb3 Qe7 Qd1 Qd8 Kd2 Kd7 Ke3 Kd6 Kf4 Kd5 a4 c5 f3 b5 g4 h5 g5 f5 g6 h3 a5 h4 g7 b3 a6 c3 a7 b4 Qc2 h2 Qb2 c4 Be3 h3 Ra3 c2 Qa2 c1N Nd2 b2 Rc3 b1B Bf2 b3 Qc2 b2 Ne4 Nf6 g8N Bd6+ Kg5 Nh7+ Kg6 Qh4 Kf7 Bb7 Qa4 Bc2 Qd7 b1N Ng3 Nc6 Nh5 Nd2 Nh6 Rhg8 Ng3 Ne7 Qc8 Rg4 Ne4 Bg3 f4 Nf3 Be3 Bf2 Nd6 d2 Nb5 Ke4 Ke6 Bc6 Nf7 Nd3 Kd6 Nb2 Nd8 Rg2 Ra3 c3 Ra5 Qg3 Ra2 Nh4 Nf3 Rg1 Ne1 Rf1 Rg1 h1Q Ra5 Rb8 a8Q h2 Na7 Rb6 Qab8 Ra6 Rb5 Ra1 Ra5 Qh3 Rg6 Qg1 Ra2 h1N Rg8 Ng3 Re8 Nh5 Qb4 Bg3 Bf2 Qhh2 Qa3 Ng6 Qc5 Bh4 Bg3 Ke3 Qa3 B6e4 Qb4 Bf6 Bh4 Qgh1 Bg5 Rg1 Bh6 Bh4 Bf8 Bf2 Qbc5 Nh4 Qb4 Ng8 Re5 Rd1 Kd7 Rb1 Bc5 Ne7 Kd6 Rc1 Nf3 Rcf1 Ne1 Neg6 Qa4 Ne7 Qe8 Q1g2 Qf8 Qg8 Ra1 Qb3 Ra5 Qa4 Ra6 Qa1 Ra2 Qd1
K3bk2/N1p5/1rbP4/p2Q1pBB/P1b4P/2nbQ3/1qr3Bq/nq1RN1b1 w - - 0 1 illegal: No proof kernel
2qn2N1/1NQqp1kP/2Qrppnr/1P2nRr1/3n1P2/n1B1Q3/4K3/1bbR4 w - - 0 1 legal: proof: e4 h5 g4 hxg4 b4 a5 c4 b5 e5 a4 e6 dxe6 Bd3 bxc4 Bc2 Rh4 Bb3 axb3 Qe2 Rh7 Qd1 Rh8 d4 c5 h4 g5 a4 g3 a5 g2 d5 f6 b5 Kf7 f3 g4 a6 c3 a7 c4 d6 b2 d7 c2 h5 g3 h6 c3 Rh5 Bb7 Rd5 Nc6 Ra2 Nd4 Re5 Be4 Ne2 g1N Ra6 g2 Rd6 Nh3 Rc6 Nf4 Ng3 Ng6 Nd2 b1N Nf5 Na3 Bb2 c1Q Rd6 c2 Bc3 g1R+ Kf2 Bd3 Qe2 Rg5 Qe3 Qd1 Nb3 c1N Red5 Bb1 Na5 Qc8 d8Q Qd2+ Kf1 Nd3 Qc7 Nde5 Nb7 Rb8 a8Q Bg7 Nc5 Rb6 Nb7 Rh7 Rd7 Rd6 Rd8 Qa2 Rc5 Qd5 Qa6 Qc6 Ke1 Q6d7 Qac6 Bf8 Kf1 Rg7 h7 Nh6 Ke1 Rg8 Ng3 Kg7 Nf5+ Kh8 Kd1 Nhf7 Nh6 Rh5 Ke1 Rg7 Ng8 Rh6 Re8 Nd8 Kd2 Nef7 Rf5 Nfe5 Ke1 Nf4 Kf1 Rg5 Kf2 Nfg6 Kf1 Ndc2 Ke2 Kg7 Be1 Ndf7 Qec5 Kh8 Kf1 Rd3 Q5d6 Rg1+ Kf2 Qdd8 Qcd5 Rh4 Qcb6 Bh6 Bc3 Bc1 f4 Rh6 Qe3 Rg5 Q5c6 Kg7 Qdc7 Qd6 Rd8 Rd4 Rd7 Nd8 Ke2 Rd1 Qcc5 Qc6 Rd5 Q6d7 Q5c6 Rd4 Rc5 Rd6 Rd5 Nef7 Rd3 Nfe5 Rd1 Nd4+
KB6/1nrp1nP1/N1n2Nq1/1n1p1pk1/1qRrbn2/1rQPQ3/3P1b2/2R3N1 w - - 0 1 illegal: Other
r6Q/2k5/p1P2b1n/RKp2RB1/1N3bb1/QnP1bqqr/nP5p/2R3Nb w - - 0 1 illegal: Other
1B5n/1NbqqB1p/QQP3R1/1p2p3/2bb1P1b/1PbQ3N/1k3rK1/3r1rn1 w - - 0 1 illegal: No proof kernel
KNn4Q/bp4r1/R6p/1qq2P1Q/4q1pr/PPq1r1B1/qN1n2RR/2k4b w - - 0 1 illegal: No proof kernel
1b4k1/2r1bqq1/4R1NK/3P2np/1rb1Q2P/q3p1n1/Pn1p3N/2NBQbR1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxg4 b4 axb4 e5 c5 Bb2 d6 d5 dxe5 Bc3 e4 Bd4 cxd4 Kd2 Kf7 f4 g5 c4 h5 h4 b5 c5 e5 c6 b3 f5 b4 f6 g3 c7 b2 Ke2 e3 Kf3 g2 Nh3 g1B Qd3 b3 Nd2 b1B Ne4 b2 Qb3 g4+ Kg3 e2 Qd1 e1N Qb3 d3 Nf4 d2 Qf3 Ba7 Rh2 Qe8 Qg2 Nf3 Rh1 Rh7 Qf2 Ba6 c8Q Ng5 Qc7+ Ne7 Qf3 Kg8 Rg1 Bbd3 Qh1 b1Q Nf2 e4 Qd8 e3 Qa5 Qc1 Qe4 Nd7 Qc3 Bac4 Rb1 Ne5 Ne2 Qf7 Kf4 g3 Rb6 g2 Ng4 Nf5 Re6 Rb8 Qa1 Rb4 Nh2 Qa3 Nc1 Be7 Be2 Bb8 Bd1 Bf1 Qab1 Ng3 Qa1 Nh1 Kf5 Nd3 Qb1 Qf8 Kg6 Nb2 Qa1 Rg7+ Kh6 Ng3 f7+ Kh8 Rh1 g1Q Qab1 Qg8 f8N Qf7 Ng6+ Kg8 Qa1 Qg2 Rg1 Bc5 Nh8 Qf5 Qc2 N3e4 Bg4 Rc7 Nd3 Nh3 Qe1 Be7 Nc1 Qf7 Bd1 Qg4 Qd3 Ng3 Qb1 Qd4 Qe4 Ng5 Ng6 Qdg7#
nn1r3n/3N1b2/RQ1p4/1n1P2p1/q1p3P1/Q2RP3/qrk3B1/KbB1qBb1 w - - 0 2 legal: proof: f4 e5 b4 exf4 c4 h5 g4 h4 b5 a6 Nc3 axb5 Ne4 bxc4 Ng3 hxg3 Qb3 c3 Qa4 Ra5 Qd1 Ra8 h4 Ke7 a4 Kd6 d4 Kd5 a5 Kc4 h5 g5 h6 b5 h7 f5 d5 c5 a6 c2 Kd2 Kb3 a7 f3 Ra4 g2 Ba3 f4 Kc1 b4 Ra5 f2 Qd2 f3 Qe1 Nh6 Rh4 Nf7 Rb5 Qa5 Rh1 Qa4 Nh3 g1Q Bb2 Qg3 Bg2 f1Q Bd4 f2 Qd1 Qe1 Rg1 f1N Bf6 Nd2 Rb6 Nc4 Ra6 Nb6 Bb2 d6 Bg7 Be6 Bb2 Bg7 Nf4 Rd8 h8Q Bd4 Qh3 Nh8 Ng6 Bf7 Ne5 Qgc3 Rf1 Bg1 Rf3 Qd3 Ba3 Kc3 Nd7 b3 Ra5 Na6 Rg3 Rab8 a8B Qf3 Bc6 Na8 Bb5 Rb7 Bd3 Nb8 Ra6 c4 Nb6 Kd4 Kb2 c1N Nd7 Na2 Ka1 Nc3 Qc1 Nb5 Qb1 Qe3 Rf3 Kc3 Qg3 Qb4 Bc1 Qa4+ Qa2 Rb6 Qf2 Rb7 Qa3 Rb6 Bg6 Qd3 Be4 Kc2 Bf1 Rb7 Qb6 b2+ Ka2 b1B+ Ka1 Be8 Rg3 Bf7 Beg2 Qdb3 Rd3 Qbb4 e3 Na7 Qd4 Qbc3+ Bb2 Rb3 Nb6 Nb5 Nd7 Qcb4 Bc1 Rb2 Qa7 Qbb3 Qb6 Qa2+
R4b1q/1bQ5/qp2b1Qr/1P1q2pN/n1n3PR/3pr3/1P1B1q2/kN2r1RK w - - 0 2 illegal: Other
Q7/1qnn3Q/Q1P2Bbq/5p2/1P1Kr1pN/R1p1RqP1/3n1kn1/1bb2N1r w - - 0 1 illegal: No proof kernel
q1b5/4RP1b/N1nn4/5QRr/2n1QP2/B2bKp2/qNk1pP1p/2brQ1q1 w - - 0 1 illegal: Other
3kn2R/2N4b/Q1BPQ1p1/1qn4K/1qrpP3/q1pn2bN/2PR4/1Qr1r1q1 w - - 0 1 illegal: No possible last move, all moves rejected
rQR2Nqb/rb1nK1R1/Qp1p1q2/1Pb1P3/2bq1Bn1/3p4/P1Qn4/2N4k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 e5 d5 exf4 d6 a4 Bg2 cxd6 Be4 d5 Bf5 d4 Be6 Ne7 Bd5 Ng8 Bb3 axb3 Kd2 Ke7 Kd3 d6 Ke4 Kf6 Kd5 Kg5 e4 Kh4 c4 g5 b5 f5 h3 Kg3 h4 Kg2 e5 f3 c5 b2 c6 f2 c7 f1B h5 b6 h6 Ra7 h7 f4 Rh6 g3 Rh4 f3 Bf4 f2 Rg4 Nh6 Qe1 Bg7 Qd1 Kh1 Qc1 g2 Nc3 b1N Nh3 g1B Bh2 Nd2 Nf4 Qf6 Rg2 g4 Ng6 g3 Ne2 Rg8 h8Q Nd7 Qc5 Qd8 Qa3 Bb7+ Ke6 Qc8 Qh7 Bh8 Qa6 Qf8 c8Q Qg7 Qc7 Rga8 Nf8 Qg5 Nc3 Qg8+ Ke7 Be2 Qe4 f1Q Qb8 Qf3 Rc1 Qf6+ Ke8 Bf1 Ne2 Be3 Rc6 Bg1 Nc1 Bc4 Qc2 d3 Rc8 Bc5 Re2 g2 Bf4 g1Q Rg2 Qd4 Rg7 Qg6+ Kd8 Ng4 Ke7 Qf6+
b7/p1Bnbk1p/rN1Q1P2/1NB1b1nP/4R1K1/1p1qqPn1/B1br1r2/Q7 w - - 0 1 illegal: Other
7n/2kpP2q/1pnb1Q1r/2BP4/KPbRN3/nQ1qB1p1/1N1n2b1/r4Qr1 w - - 0 2 legal: proof: g4 e5 b4 h5 f4 exf4 a3 hxg4 Bg2 c5 Be4 a5 Ra2 c4 Rb2 a4 Bd5 c3 Bb3 axb3 a4 cxb2 e4 g5 d4 f5 Kd2 b6 Kc3 g3 h4 g2 e5 g4 e6 g3 a5 f3 d5 f2 h5 f1R h6 f4 h7 f3 a6 f2 a7 Nc6 Rh4 Ne5 Nf3 g1N Nfd2 Bd6 Na3 b1Q Nac4 b2 Kb3 Qe7 c3 Rb8 a8Q Kd8 Qa2 Ba6 Qa1 Rc8 Ka4 Nh6 Qb3 Qd3 Rf4 b1N Qab2 Rg8 h8B Rg6 Qa1 Rd1 Nb2 Na3 Qb1 f1B c4 Qf5 c5 Qh7 Rc4 Qd3 Ne4 Nhf7 Bd2 Rc7 e7+ Kc8 Qc1 Ngf3 Qcc3 Rh6 c6 Bg2 Be3 Kb8 Bg7 Rc8 c7+ Kb7 Qc1 Rg1 Qf1 Nd2 Bf6 Nh8 Bg7 Nef7 Bgd4 Ne5 Qe1 Rf8 c8Q+ Ka7 Qe2 Rff1 Qf8 Kb7 Bc5 Ra1 Qef1 Kc7 Q8f6 Nc6 Rd4 Bc4
1n2K3/2p1R1pQ/1qQq1n1R/b1P2qPN/1rkN4/P7/p1b2br1/B1Q2r1q w - - 1 2 illegal: No proof kernel
Nq2k1n1/nRRr2p1/2p2qP1/Q6n/B1P1r1q1/b1bPnpNb/3N4/3Q3K w - - 1 2 legal: proof: f4 a5 g4 h6 e4 d6 b4 axb4 g5 Qd7 g6 Qd8 e5 dxe5 Bb2 exf4 Bf6 f3 Bg5 hxg5 Kf2 f5 c4 e5 h4 b5 a4 e4 a5 c6 h5 g4 d3 b3 h6 f4 a6 b4 h7 b2 a7 g3+ Ke1 b3 Rh6 f2+ Ke2 g2 Na3 b1Q Nb5 b2 Ra6 f3+ Ke3 Nd7 Qe1 Ndf6 Rb6 Nh5 Na3 Bh3 Qd1 Qf6 Be2 f1N+ Kf2 Ne3 Rb7 Rd8 a8N Rd7 Rc7 Nf4 Rh4 Nh5 Rf4 Bc5 Rf5 Be7 Rb5 Bb4 Bf1 Bf8 Ne2 g1Q+ Ke1 Be7 Rbb7 Qg4 Kf2 Bc5 Ng3 Be7 Nb5 Ba3 Kg1 Qc1 Bg2 b1N Nc3 Qb2 Bf1 Qb4 Kh1 Qbf8 Na2 Nc3 Be2 Nb5 Nc3 Na7 Nb1 Q8d6 Rb3 Qb4 Nd2 Qb8 Rbb7 Nf1 Qb3 e3 Bd1 e2 Qb4 e1B Ba4 Ne3 Qb5 Ne7 Qa5 Rf8 h8Q Ng8 Qh7 Rff7 Qh6 Rfe7 Qhg5 Re4 Qgb5 Qe5 Qb1 Qef5 Qd1 Qf6 Ndf1 Beb4 Nd2 Bc3
1Q3b1R/1pbb1p2/1Q1R1PKR/2B2n2/q1pq2BP/1r1rbrN1/q1P5/3nk3 w - - 1 2 illegal: Other
r3n1QK/pb1qrR2/r1q3b1/PB1p2p1/4QnQB/4RPbP/Nr6/k4n2 w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Ne4 hxg6 Bg2 g5 Ng3 fxg3 Bf1 g4 Kd2 Ke7 a4 Ke6 e4 Ke5 b4 c5 b5 d5 b6 g5 a5 d3 Kc3 g2 f3 d2 b7 g3 h3 Qd7 Qc2 d1B Bb2 Rh6 Qf2 Bd6 Be2 Nc6 b8Q Nb4 Rh2 Bb7 Qe3 Nd3 Qc1 Bc2 Ra4 Nf6 Ra1 Nf4 Ra4 Ne8 Qe3 Re6 Ba1 Re7 Qc8 Bb8 Bf1 Bc7 Ne2 g1R Rh1 Rg2 Nc1 Re2 Na2 g2 Bb2 g1N Rh2 Rd2 Re2 Bd3 Ba3 Rb2 Bb4 Bc2 Qd3 Bb8 Re3 Nge2+ Kd2 Ng3 Kc3 Bb1 Be2 Nf1 Qc2 Ke6 e5 Bd6 Qh7 Bg6 Qg8+ Kf5 e6 Bc7 Rd3 Ke5 Re3+ Kd6 Re4 Kc6 Ra3 Kb5 Rb3 Ka4 Re3 Ng2 Bd3 Bg3 Be2 Nf4 Bd3 Rf7 e7 Rf6 Re5 Ra6 Rf5 Re2 Rf7 Re5 Kb2 c3+ Kc2 c4 Bc5 Qc7 Qg4 Qd7 Bf2 Re4 Rb6 Ka3 Re6 Re1 Re3 Re2+ Kd1 Kb2 Be1 Bh2 Bh4 Ka1 Kc1 Rb2 Kd1 Nf6 e8Q Bg3 Qe4 c2+ Kc1 Ne8 Be2 Nh2 Kd2 Nf1+ Kc3 c1R+ Kd4 c3 Ke5 c2 Bd3 Re1 Bb5 Nd6 Kf6 c1Q Kg7 Ne8+ Kh8 Qcc6 Qc2 Rc1 Qcf5 Rc4 Qc2 Re4 Qd3 Re5 Qe4 Re7
4b3/5Nq1/q1qbr1nP/1p1qQ2p/kbrR2P1/2Q4R/N4pnP/1K1N2nB w - - 0 1 illegal: Other
q4n2/4N2B/qp1qbpb1/2B3p1/QPPb1r1k/3Kr2b/N1Q1n1P1/n1N1R3 w - - 0 2 legal: proof: b4 e5 h4 Qxh4 d4 c5 a3 cxd4 Ra2 a5 Rb2 a4 Rb3 axb3 a4 Qh2 f4 exf4 Kd2 Ke7 e4 Kf6 e5+ Kg5 a5 d5 e6 h5 c3 b6 e7 f6 e8N b2 a6 d3 a7 h4 Na3 b1B Nc4 h3 Ned6 d4 Qb3 f3 Qa2 f2 Ne4+ Kh4 Bb2 g5 Na3 Ne7 Nc5 Nec6 Na6 Bc5 Ne2 Nd7 Qa1 Qd6 Rh2 Na5 Nc2 Nb3+ Kd1 d2 Rh1 h2 Ng1 Nf8 Ke2 d1N Na3 Bg6 Nb5 Be6 Qb1 Na1 Qd3 Re8 Qc2 d3+ Kd2 Bd4 a8Q Bh3 Ne2 Re4 Nb8 Rh6 Rg1 h1Q Nc1 Rf4 Be2 f1Q Nc6 Qf3 c4 Nc3 Bf1 Ne2 Qaa4 Rh7 Ne7 Qa8 Nc3 Rh8 Kd1 d2 N3a2 Be6 Bc3 Qh3 Bb2 Qf5 Bc3 Qfa5 Bb2 Q5a6 Bc3 Ng3 Bd3 Ne2 Re1 Rh7 Nc6 Rc7 Ne7 Rc5 Bf5 Re5 Bb2 Ree4 Bc3 Bg1 Bd4 Be3 Bc5 Bd4 Qb2 Nb3 Kc2 d1B+ Kd3 Na1 Qaa3 Ba4 Qc2 Bad7 Qaa4 Bc8 Bg4 Bcd7 Bh5 Bh3 Bg4 Be6 Bf5 Bgf7 Bh7 Be8 Nd5 Bg6 Ne7 Re3+
3rNn2/QpK1PQQ1/R1q2p1r/4N3/1n2qRP1/q1p2P2/1B1br2q/1n1b3k w - - 0 1 legal: proof: c4 g5 d4 d5 b4 a5 h4 gxh4 e3 axb4 Bd3 e6 Be4 dxc4 d5 Bh6 d6 Bf8 Bd5 exd5 Ke2 Kd7 Kf3 Kc6 Kf4 h5 Ke5 b3 a4 d4 e4 h3 g3 b2 a5 c3 a6 d3 d7 d2 a7 h4 Ra4 f6+ Ke6 c2 e5 h2 Qg4 d1R Ra1 h3 Qb4 Re1 Bg5 c1Q Qa3 Na6 Qd3 Qe8+ Kf5 Rh6 e6 Re2 d8Q Bb4 Q8d4 Bd2 Na3 b1N Nc4 Qa3 Nd6 Nb4 Nf3 Qd7 Rd1 h1Q Ne8 h2 Qb3 Qe1 Qf4 h1Q Qg4 Qh2 Ne5+ Kc5 Bf4 Kd4 Qg7 c5 f3 c4 g4 c3 Qa2 Qc6 Bg5 Rb8 a8Q Bd7 Qb3 Rd8 Ra2 Qc1 Ra6 Qa3 Qa2 Qd5 Qb8 Ba4 Qbc7 Qc6 Qcf7 Qeg1 Re1 Bd1 Qa1 Bf4 Qa2 Ke3 Qa1 Kf2 e7 Kg2 Qaa2 Bd2 Be3 Qe4+ Ke6 Kh1 Bg5 Rh5 Be3 Nh6 Bf4 Nf5 Bg5 Rb8 Kd7 Rh6 Kc7 Nh4 Be3 Ng6 Bc5 Bg5 Be3 Rd8 Bc1 Bd2 Bb2 Nf8 Qa1 Rf2 Re3 Qf1 Rd3 Qfg1 Rd4 Re2 Rc4 Qge3 Rd4 Qd5 Rf4 Qee4 Qa2 Qab3 Qa5 Qa3 Qb6 Qb5 Qa7 Qbc6+
rq1RB3/1nK1nNb1/1QPp1P1q/1Q5N/1B2b2q/2bP1prk/1r4p1/1B2r3 w - - 0 1 illegal: No proof kernel
1b1QBrR1/pN6/3K3Q/8/PprPQ1R1/1P1B1n2/q1bnqp2/bnb1k2q w - - 1 2 legal: proof: f4 g5 c4 d5 f5 dxc4 b3 g4 f6 g3 Bb2 exf6 Be5 f5 Bb2 f4 Qc1 h6 Kd1 Bf5 Nc3 Be7 Ne4 Bh7 Bd4 Bf5 Bf2 gxf2 g4 Bf8 Ng5 Bd7 Qc2 Be6 Kc1 Bc8 Qd1 Bg7 Ne4 Bf8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Kb1 Kd7 Kc1 Ke8 Kb2 Kd7 Kc3 Ke6 a4 Ke5 h4 Ke4 h5 f5 g6 c5 d3+ Ke3 g7 b5 h6 b4+ Kc2 f3 h7 g3 Rh6 g2 Ra3 f4 Qb1 c3 Ra2 c4 Rc6 Ne7 g8B Nd5 Ra6 Bd6 Nh3 g1B Qe1 Bf5 Rb2 Nd7 Ra2 Ne5 Qd1 Bb8 Bg2 f1Q Rg6 f2 Ng5 f3 Bf7 Rf8 h8Q Qe8 Bh3 Qg2 Rg8 f1N Qh6 Kf2 e4 Nd2 Ne6 Bg6 Bf5 Qb5 Kc1 c2 Nc5 Nc3 Nb7 Ncb1 Be8 Qh2 Kb2 c1B+ Kc2 c3 Ra1 Rf7 Ra2 Rc7 Rb2 Nf7 e5 Ng5 e6 Qbe5 e7 Qe2 Be4 Qg2 Bf5 Bh2 Qh1 Be5 Q1h4+ Kf1 Qe4 Ke1 Ra2 Bf4 Ra1 Bb2 Ra2 Ba1 d4 Be3 Bc6 Qh1 e8Q f2 Qd8 Ngf3 Be8 Qd1+ Kd3 c2 Rb2 c1Q Rc2 Qa3 Rc6 Bh7 Rcg6 Qa2 Rg4 Bg6 Qe6 Nc4+ Ke4 Qde2 Kd5 Bc1 Qee3 Ncd2 Bd3 Bh7 Kd6 Be4 Bc4 Bc2 Qe4 Ng1 Bc6 Ngf3 Bd3 Rf7+ Kd5 Bh2 Qc7 Raf8 Qd8 Bb8 Be8 Rc7 Kd6 Rc4+
1q3QR1/n1Bq3p/p2b1N2/2bbn3/kP4R1/P2n2RQ/NrKp2Pq/1n5r w - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 c4 bxc4 e5 f5 Bd3 g5 Bc2 gxh4 Be4 fxe4 Kd2 c5 f4 d5 f5 Kd7 f6 Kc6 e6 Kb5 f7 d3 b3 d4 e7 h3 e8Q+ Qd7 Qc2 c3+ Kd1 h2 Qe2 c4 Qh5+ Bc5 f8R c2+ Kd2 e3+ Ke1 e2 Kd2 e1N Qee2 Ne7 Qd5 Nbc6 Qde5 Bb7 Rf2 Rhb8 Qf3 Ng6 Qe8 Nge5 Bb2 c1B+ Kd1 c3 Qf4 d2 Qef7 N1d3 Kc2 d1N Qg3 Bf4 Rf3 a6 a3 Na7 Qe7 Bd5 Qh3 Rf8 Qf7 Rab8 Ne2 Rfd8 Re1 h1Q Ng3 Qh2 Ne4 Rb6 Rfe3 Rh6 b4 Ka4 Qff5 Rg8 Qf8 Rg3 Nf6 Rf3 Qe6 Rhh3 Re4 Rf1 R1e3 Rh1 Nd2 Bg3 Rg4 Bf4 Rc1 Bg3 Nb3 Bf4 Kb1 c2+ Ka1 Nc3 Reg3 Nb1 Bc3 Nf2 Kb2 d3 Re1 d2 Nc1 Bc4 Rg8 Bd5 R3g4 Rd3 Na2 Bg3 Re3 c1Q+ Ka1 Qf1 Kb2 Qe2 Bd4 Rb3+ Kc2 Nfd3 Rf3 Bf4 Rfg3 Qe4 Bg1 Qg6 Qf5 Qge8 Qh5 Qb8 Qh3 Bd6 Bc5 Be3 Bb6 Bec5 Bc7 Rb2#
n3q2k/1r1n3p/pqQP1r1N/6K1/nQR3b1/q3pr1P/Rb3PB1/5BBn w - - 0 1 legal: proof: e4 d5 a4 g5 c4 dxc4 e5 b5 e6 bxa4 Nh3 g4 Nc3 fxe6 Ne2 e5 Neg1 e4 Nf3 g3 Nhg1 Bd7 h3 Bc8 Nh2 gxh2 Ke2 Kf7 Ke3 Kg7 Kf4 e5+ Kg3 c5 d4 a3 b4 c3 d5 a2 d6 c4 b5 c2 b6 e3 b7 e4 Kf4 c3 g4 a6 g5 e2 g6 e1Q Qf3 Qb6 Bg2 Ne7 Bf1 Ra7 Qe3 Nd5+ Kg5 Bg4 Qd2 Nc7 Kf4 Na8 Nf3 Nd7 b8Q Rb7 Bb2 c1N Qe8 Nd3+ Kg5 N3c5 Ne5 c2 Qb4 c1R Nf7+ Rc3 Nh6 Na4 Bc1 Rg3 Bf4 Rf3 Bg2 Qe2 Rhc1 h1N Bh2 e3 Rc5 Qeb5 Bg1 Rg8 Qee4 Kh8 Qc6 Bg7 Bf1 Bb2 Bg2 Qd3 Rc4 Rgf8 Bf1 R8f6 Bg2 Kg7 Bf1 Qe4 Bg2 Kf8 g7+ Ke8 g8B Kf8 Rc5 Kg7 Bc4 Kh8 Bcf1 Qe7 Rc4 Qe8 Rac1 a1Q R1c2 Be5 Re2 Qa3 Ra2 Bb2
N4Q2/1k6/1qR1pP1p/R2rq2r/rQ1P1B1r/KN2bpbb/1n2n1QP/7q w - - 0 1 illegal: No possible last move
1q3KbB/kNp1b2P/1n1b1n2/1Rr1Q1Q1/1nnp4/1PPq2p1/2r5/2NB2Bq w - - 0 1 illegal: No possible last move, all moves rejected
2N3Kb/1np1R1qR/b2B1p2/NQ1p2n1/1P1q2r1/1b1nR3/1bP2Pk1/3rQ1q1 w - - 1 2 legal: proof: b4 b5 h4 e5 a4 bxa4 d4 exd4 e3 g5 Bc4 gxh4 Bb3 axb3 Kd2 Ke7 Kd3 Ke6 Ke4 a5 g4 h5 g5 d3 g6 d2 g7 h3 Na3 b2 Ne2 b1Q Nc3 h4 Kd4 Kf5 Kd5 h2 e4+ Kf4 e5 h3 e6 a4 e7 f6 e8R Na6 Rf1 h1Q+ Ne4 h2 Rg1 Nh6 g8Q Bg7 Rf8 Nc5 Qe6 Nf7 Qf1 Kf3 Qea6 d1N Qb6 Rh4 Bh6 Ba6 Qb8 Bh8 Qb7 Rg4 Bg5 Nb2 Qc6 Nbd3 Nc4 a3 Qb5 a2 Na5 Nb7 Bf4 Ng5 Qe1 d6 Rf1 Kg2 Re8 Qd1 Rb1 a1B Rb3 Bb2 Re7 Qd2 Be5 Qg1 Bg3 h1B Rc3 Nf3 Ke6 Qh6 Kf7 Qd7 Bf4 Rag8 Ra3 R8g5 Rb3 Rd5 Be5 Ng5+ Kg8 Nf4 Rh3 Rd1 Re3 Nd3 Bg3 Kh3 Be5+ Bf3 Bg3 Kg2 Rh7 Be2 Bh2 d5 Nd6 Qe7 Bf4 Qe5 Nc8 Qe4 Bd6 Qd4 Qd7 Bc4 Qb5 Bb3 Rhe7 Qgh2 Rh1 Qg1 Rhh3 Nf4 Qc6 Ba6 Qb5 Nd3 Rg7 Qg6 Rh7 Qh6 Rge7 Qg7+
8/2N4k/1n2n2n/4QrP1/p1R1p1qP/1RQb1rBp/2bKb1bP/2bRNb2 w - - 0 1 illegal: Other
1R1b3b/Q4p2/3p1rP1/PR5q/B2Nb1kN/1pQP1n2/3nb1K1/b1b2rnN w - - 0 1 illegal: No proof kernel
QK1b3b/2p1nP2/2qR1bpR/2qnb1Pb/1r1k1P1Q/5Bb1/1R1B2p1/2N2r2 w - - 0 1 illegal: Other
1R6/r2Qrn1b/6r1/3rpbRb/b3P2b/pnpqN1BP/Q1PN2N1/4K1k1 w - - 0 2 legal: proof: f4 g5 a4 b5 g4 bxa4 d4 h5 Bh3 gxf4 d5 Bg7 g5 Bc3+ Kf1 Bb4 Bg4 hxg4 d6 Bxd6 Na3 Bb4 Nb1 Bd2 b4 f5 e3 Kf7 g6+ Kf6 h3 Kg5 b5 Kh4 g7 Kg3 b6 d5 b7 c5 Rh2 a5 Na3 e5 Re2 f3 Qe1+ f2 Nb5 Kh2 Rb1 a3 Nd4 g3 Qd1 a4 Ne6 a2 Nf8 a1R Re1 a3 Ne2 f4 Nc3 d4 Na2 c4 Ke2 f1B+ Kf3 c3 Nd7 g2 Kf2 g1R Nf8 d3 Qg4 f3 Re2 Nc6 b8N Bf5 Qg5 Ra7 Ng6 Nd4 Rb2 Nb3 Qe7 Rh7 Nb4 Nh6 g8Q Nf7 Nf4 Rg6 N8c6 Bg2 Rb1 Bh1 Kf1+ f2 Ng2 Be1 Qd7 d2 Na5 d1B Nd5 Rhg7 Rd2 Bh5 Nc4 Rh7 Rd4 Rhg7 Nd2 Rh7 Nh4 Bhe4 Ng2 Rhg7 Rb4 Rh7 Rb8 Rhg7 Nb4 Bc6 Nd5 Ba4 Nf6 Kh1 Ng4 Rh7 Ke2 f1B+ Kd1 Bc4 e4 Bce6 Ke2 Bh4 Kd1 Kg1 Ke2 Bf6 Ke1 Bc4 N4e3 Be7 Qc7 Qd3 Qcd8 Rgh6 Qd7 Bh4+ Qg3 Bce6 Rg8 Rf6 Rg5 Rg7 Rb2 Bh7 Rb1 Bef5 Rb2 Nd4 Rb8 Nb3 Ndf1 Nh6 Rg6 Qd5 Nd1 Na5 Bf4 Re7 Rg7 Rb1 Rg4 Rbb6 Nd2 Qd3 Nde3 Rfd6 Rgg8 Bf6 Qg7 Bh4+ Bg3 Rba6 Qf6 Nf7 Rg5 Rd4 Qb6 Rd5 Qb1 Rg6 Qa2 Nb3
rb1r1N2/8/3k2p1/Q3R1nn/K2p2b1/2nPr1r1/PqQ1PpRB/1R1r1nN1 w - - 0 1 legal: proof: g4 c5 f4 a5 b4 e5 g5 exf4 g6 a4 Bh3 cxb4 Bg2 hxg6 Bf3 g5 Bd5 g4 Bb3 axb3 h4 Ke7 c4 d5 c5 b5 c6 f5 c7 g6 h5 b2 h6 g3 h7 d4 Na3 b1R Nc4 f3 Qb3 f4 Kd1 g2 Kc2 f2 Qh3 f1N Qf3 b3+ Kd1 b4 Na5 b2 Kc2 b3+ Kd3 Bg4 Kc4 Kd6 Kb4 Nf6 c8R Nbd7 Nh3 g1R Qe4 f3 Qc2 f2 Ka4 Nh5 Rc5 Rg3 Re5 Ndf6 Rh2 Ne4 Ng1 Qb6 Rg2 Ng5 d3 Re3 Bd2 Rd1 Rb1 Bg7 Bc1 Rhd8 h8Q Bh6 Qg7 Qb8 Qa7 Qb6 Ra1 b1N Nc6 b2 Nb8 Qb7 Qa5 Nc3+ Ka3 b1R Nd7 Rb5 Nf8 Rg3 Bf4 Rd5 Rf5+ Re5 Rb1 Qb5 Bc1 Re4 Re5 Bg7 Bf4 Ree3 Re8+ Be5 Re7 Rh3 Bh2 Rhg3 Re8 Kd5 Re7 Bb8 Re5+ Kd6 Rc5 Nce4 Re5 Qb2+ Ka4 Nc3+
N3nn1B/1p1Np1r1/r3Qb2/2NpbQ2/3qn2P/1B1P4/b2knP1n/2Rb1K2 w - - 0 1 legal: proof: e4 c5 b4 cxb4 g4 f5 a4 fxe4 Ra3 h5 Rh3 hxg4 Rh5 a6 Rb5 axb5 c4 Kf7 h4 Kg6 a5 Kf5 a6 g5 c5 g3 c6 g2 a7 g4 c7 e3 Nh3 Ke4 Qe2 g1N Ba3 b3 Bg2+ Nf3+ Kf1 g3 Bd6 b4 Na3 b2 Rh2 b1N Nf4 b3 Nc2 b2 Bh3 Rh7 Qe1 e2+ Kg2 Rg7 Nd5 Kd3 Nc3 Nf6 Be6 Ne8 Qc1 e1B Ne2 Nc3 Rh1 b1B Ncd4 Ne4 Be5 Ba2 Nc3 Nh2 Bb3 d5 Kg1 g2 Nc6 Bg4 c8Q Qb6 Qf5 Bd1 Na4 Nd7 Nb8 Qd4 Qc8 Ke2 d3 Bc3 Nc5 Kd2 Qf4+ Qe3 Bf6 Be5 Qf5 Qd4 Qc6 Rg6 Qb6 Bg7 Qbe6 Nf8 Nbd7 Bh8 Bc4 Rg7 Bb3 Rc8 a8N Rc6 Qh5 Ra6 Qhf5 Rg6 Bg7 Rg5 Bh6 Bhf6 Bg7 Nf1 Bh8 Rg7 Rh3 Nh2 Re3 Bh5 Re1 Bg4 Rb1 Bd1 Rc1 Nf1 Qh3 Nfg3 Kh2 g1N Kg2 N3e2+ Kf1 Nf3 Qhf5 Nh2#
rkb4Q/7b/QPp2p2/R1K2qp1/2PBnbb1/P3R1bB/2n3N1/n1Q1r2n w - - 0 1 illegal: No possible last move
1B2r1BQ/r1bB4/4RP2/p5qp/1bq2Pp1/1bN2nb1/1k1n2KP/b1R1b2Q w - - 0 1 illegal: Other
2n1Bk2/pn3bRp/5N1q/rb1Qp3/2QR1b2/1P1PQ1Kn/P2n2bB/r1b5 w - - 0 1 legal: proof: f4 b5 h4 e5 c4 bxc4 e4 g5 Nc3 gxh4 Nce2 d6 Nd4 Qd7 Ndf3 exf4 e5 Qe7 e6 Qd8 Ne5 dxe5 Kf2 c5 g4 f5 e7 h3 g5 f3 g6 f4 g7 h2 b3 c3 Nh3 c2 Rg1 h1B Qe1 c4 Rg3 c3 Rg5 Bg2 Ba6 Qd6 Qh1 Nc6 Rf5 Na5 Rh5 Rb8 Rf5 Be6 Bb7 Bf7 Ng1 Qh6 Be4 Rb5 Qh5 Nb7 Rg5 Ra5 Bb2 c1N Bg6 c2 Nh3 Ne2 Rd1 c1B Bd4 Ng1 Qh4 Rb5 Rg4 Ra5 Ng5 Nh3+ Ke1 Rc5 Ne4 Ra5 Bg1 f2+ Ke2 f1N Qf2 f3+ Ke1 Ng3 Bh2 Nf1 Qe3 f2+ Ke2 Nf6 g8Q Nd5 Bh5 Nb6 Rg7 Nc8 Bg6 Kd7 Nf6+ Ke6 e8Q+ Be7 Qgf8 Rg8 Qa4 Bd8 Qfe8+ Kd6 Qec6+ Ke7 Qac4 Kf8 Q6d5 Be7 Ne4 Bg5 Nf6 Ng3+ Kd3 Ne4 Ke2 f1B+ Ke1 Be6 Be8 Bf7 Qa4 Ba6 Qac4 Bb5 Ke2 Bf1+ Kf3 Bg2+ Kg4 Bh4 d3 Nd2 Rf1 Bg5 Kg3 Bg6 Rc7 Bf7 Rf4 Rg6 Ng4 Rf6 Rd4 Rf1 Nf6 Ba3 Qf4 Ra1 Qe3 Bc1 Rd7 Bg6 Rg7 Bh5 Qg1 Bf7 Qe3 Bf4+
N1R3b1/5RKp/R2B1PQp/5p1P/3Pk1r1/2bn4/3Qr2r/r1nnqNbb w - - 0 1 illegal: No proof kernel
n1R2QNr/1n2np2/NN3bk1/pPq5/1B1nbb1p/P2Q1P2/3K1B2/r2br3 w - - 0 2 legal: proof: d4 e5 h4 exd4 c4 b5 b4 bxc4 h5 g5 Nd2 Ke7 Rb1 Ke8 Rb3 Nc6 Rb2 Nb8 g4 Qe7 Bh3 Ba6 Rb3 Qc5 Rf3 Qb6 Rf4 Bb7 Bg2 Nh6 Be4 Ng8 Bg6 Qc5 Rf3 Qd5 Rfh3 Bc8 Rh4 gxh4 g5 Qd6 Bf5 Qe7 g6 Qf6 g7 Qd8 Bg6 hxg6 e4 d5 f3 c5 e5 d3 b5 c3 h6 g5 e6 d4 e7 c2 h7 c4 Ba3 c1B Nb1 g4 Qc2 g3 Qc3 d2+ Kd1 g2 Qa1 c3 Ke2 d1B+ Kd3 c2 Bb2 Bf5+ Kc4 d3 Kc3 d2 Ba3 Qc7+ Bc5 Be4 Rh2 Nd7 Ne2 g1N Na3 Nb6 Nf4 a5 Ne6 Ne2+ Kb3 Rb8 Bb4 Qc5 Qc3 Na8 Qd3 Bb2 Rf2 Bf6 Nc4 Nd4+ Kc3 c1N a3 Ncb3 Nc7+ Kd7 Re2 Re8 Na6 Ke6 Rg2 Kf5 Rg1 Qd6 Nb6 Nc5 Rh1 Kg6 Re1 Nh6 g8N Nhf5 Rh1 Nb7 Re1 Be2 Rc1 d1R Rc2 Re1 Kd2 Bd1 Rc8 Rd8 e8Q Qc5 Qe7 Rd5 Qe8 Bd6 Qf8 Ne7 Nh6 Rg8 h8B Bb8 Bg7 Rh8 Ng8 Rg5 Bh6 Rgg1 Be3 Bf4 Qd8 Bb3 Qf8 Ra1 Qe2 Rge1 Qd3 B4e5 Bg1 Bd1 Bf2 Bf4+
2qB1b2/1bPp3b/4pN2/4k1p1/2nn3K/1rR2QrN/B1rPnP2/b1r3QQ w - - 0 1 legal: proof: e4 a5 b4 axb4 a4 h5 g4 hxg4 e5 c5 e6 c4 Ra2 fxe6 Ra3 e5 Rg3 e4 Rb3 cxb3 c4 Kf7 h4 Kf6 c5 b5 a5 g3 a6 e6 a7 e3 h5 g2 h6 b2 c6 b3 c7 b4 h7 Nc6 Qh5 Ne5 Bb5 Nc4 Qf3+ Ke5 Nc3 b1B Qe2 b2 Qd3 b3 Qg6 Ne7 Qh6 Nf5 Nh3 g1B Ke2 Bb7 Ne4 Qc8 Kf3 e2 Kg4 e1R Qg5 Rg8 h8Q Bh2 Qe3 Nd4 Qh4 Bd3 Bc6 b1N Qf3 b2 Nf6 Bh7 Bd5 Nc3 Qh6 b1R Ba3 Rb8 a8Q Rb3 Be7 Nce2 Qg6 Rc1 Bd8 Rb2 Rg1 Rbc2 Qh1 Bf4 Rg3 Bg5 Rc3 Bh4 Ne8 Bf6 Qa3 Bc6 Kh5 Rb3 Qgg1 Bb7 Kg4 g6 Qa8 Rg7 Qa3 Rf7 Qa8 Bh8 Kh4 Rf3 Nf6 Rg3 Qa6 Nb6 Qd3 Nc4 Qdf3 Rb4 Qe4+ Kd6 Qgg2 Na3 Ba2 Rb3 Ng4 Nc6 Rc5 Ba1 Qgg1 Ncd4 Rc3 Nc4 Qf5 Na3 Qd3 Nc4 Nf6 Ke5 Qdf3 g5+
n2Q2rr/3BRPk1/3b1p1b/1B1q1P2/KBPNpbp1/3R3r/b1q5/r4n1Q w - - 0 1 illegal: Other
bR6/bq2n3/3q1Rp1/2qN3N/Kb3P2/N1rpnP1b/3P1p1q/Q1QBkr2 w - - 0 1 illegal: Other
q1bN2B1/2B1pqP1/7n/q2bP1bR/1Q1R2pQ/3P1pqr/Bb1n2r1/2k2K2 w - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 c4 axb4 Nc3 d5 Ne4 dxc4 g5 h6 Nf2 h5 Ng4 hxg4 h4 Kd7 a4 Kc6 e4 Kc5 g6 Kd4 d3 Kc3 h5 c5 h6 f5 h7 b5 e5 f3 a5 f4 a6 b3 a7 f2+ Ke2 b4 Bg2 b2 Be4 b1B Rh2 b3 Nh3 b2 Bf3 Nd7 Ra6 Ndf6 Bh1 Qa5 Bb7 Bh6 g7 Ba2 Qg1 Kc2 Bf3 b1Q Ba3 c3 Rc6 c4 Bb4 Qa1 Rg2 Ne4 Rc5 Bg5 Rh2 Nd2 Rd5 Nh6 Qe1 Kb2 Rd6 c2 Bd5 c1B Bg8 c3 Rd4 c2 Bd6 Bd5 Bc7 Rb8 a8B Kb1 Re4 Rb2 Rd4 Q1a4 Bc6 Qa8 Bb5 Q4a5 Bc4 Ra2 Qh1 Rb2 Qe4 Ra2 Bb3 Bb2 Bc4 c1Q Bb3 Bh4 Ng5 Qg1 Nf7 Kc1 Nd8 Bg5 Rh5 Qg3 Be6 Rg8 h8Q Re8 Qhh7 Rh8 Bg8 Kb1 Kd1 f1Q+ Qe1 Qff2 Qhe4 f3 Qh1 Qf4 Qh4 Qf7 Bc4 Qh2 Ke1 Kc1 Qf4 Ra4 Ba2 Rc4 Qf6 Rc2 Qd6 Rh7 Qf2 Qg3 Qb4 Nb1 Kf1 Re2 Qg1 Rg2 Qf2 Nd2+ Ke1 Qgf4 Rh1 Nf5 Qg3 Rhh2 Qh3 Nh6 Qg3 Rh3 Qf2 Rhg3 Rh5 Rh3 Qh4 Ne4 Kf1 Qh2 Bb8 Qg3 Bc7 Nd2+
5QN1/b1pnprq1/Bp1bQRr1/B3PK2/bP1b3k/3n3P/Q2q4/1nNn4 w - - 0 2 legal: proof: g4 f5 b4 d5 c4 dxc4 a3 h5 Ra2 a5 Ra1 f4 Qb3 hxg4 Qg3 fxg3 Ra2 a4 Rb2 Rh3 Rb3 axb3 a4 Rh8 e4 Kf7 Ke2 Kg6 Ke3 Kg5 d4 c3 f4+ Kh4 h3 g5 f5 c2 a5 b2 f6 g2 a6 g3 d5 g4 Kf4 Bh6+ Ke5 Bd7 d6 Ba4 f7 Bf4+ Ke6 Nd7 f8Q Nh6 a7 Nf5 Qf7 Ne3 Nd2 b1N Ba6 Rf8 Ne2 Nd1 Rf1 g1Q Kf5 g2 Rf2 Rb8 a8Q g3 Qa7 Rg8 Qe6 Rg6 Bb2 c1N Bd4 Rc8 Bb6 Nd3 Ba5 Ra8 Rf3 Qd4 Rf2 g1B Nc1 g2 Rf1 Qg7 e5 Bc5 Ne4 g1B Nf6 Bfe3 Rf3 Bed4 Ng8 Rb8 Qa8 Ba7 Rf1 b6 Qad5 Bc5 Qa2 Bgd4 Rf2 Qc8 Rf3 Qb7 Rf1 Qg2 Rf3 Qd2 Rf1 Nf6 d7 Rf8 d8Q Rf7 Qf8 Bd6 Rg1 Rh6 Rg6 Nd7+ Rf6 Rg6
nR3q1K/b1p2BQ1/pb1B1PpQ/1r6/1r2r2q/1RPb2Pk/1N6/1r1bn2B w - - 0 2 legal: proof: d4 b5 a4 bxa4 h4 g5 Nc3 gxh4 Nd5 e5 Nf4 exd4 Ng6 fxg6 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 h5 e4 h3 b4 h2 g3 d3 f3 h4 b5 d2 b6 d4 b7 a6 Ra3 h3 Rb3 d3 Qe2 d1B Be3 d2 Ba7 a3 Rb6+ Nc6 b8Q a2 Qd3 a1B Qd5 Qe7 Bd3 Bd4 c3 Rh5 Qd7 Rb5 Ne2 Bb7 Qbd8 Rb8 Nc1 Ba8 Rb7 Nb4 Bc5 Nc2 Bd6 Ne1 Q8e8 Bb6 e5+ Kg7 e6 Kf6 Ke4 Kg5 f4+ Kg4 f5 Bh6 f6 Bhe3 Qf8 Bf2 Rf1 h1R Qh6 h2 Bc4 Ba7 Bd5 Bfb6 Ke5 Rg1 Nd3 h1Q Rf2 Qh4 Nb2 Kh3 Re2 Re8 Rb8 Rb4 Bf3 Be4 Bh1 Bd3 Re4 Rf1 Rc4 Rf4 Rc5 Rb3 Rb5 Rfb4 Kd5 Bg4 Ke5 d1R Kd5 Rb1 Ke5 Qh7 Qdg7 Bd1 Kd5 Ne7+ Ke5 Nd5 e7 Bd4+ Ke6 Nb6 Kf7 Na8 R5b6 Rb5 R6b7 R3b4 Rb6 Rd8 e8B Rd7+ Kf8 Re7 Bf7 Re4 Qe3 Q7h5 Kg8 Qe5 Qeh6 Qe7 Kh8 Bf2 Rc6 Bfb6 Rc4 Rb3 Ra4 R3b4 Ra3 Be3 Rb3 Bg1 Bg8 Bgb6 Bf7 Qf8+
R7/B4PpQ/3p2n1/2N1rR1K/2qnrb2/k2Pr1PR/3pb3/1B1nQnqr w - - 0 2 legal: proof: b4 a5 e4 axb4 e5 h5 e6 c5 g3 h4 d3 h3 Kd2 c4 Qg4 c3+ Ke2 fxe6 Qd4 e5 Nd2 cxd2 Qf4 e4 Qf3 Qc7 Qg2 hxg2 Ke3 Qb6+ Ke2 Qd8 c4 b5 a4 e5 f4 Ke7 h4 Kd6 h5 Kc5 f5 e3 Kf3 e4+ Kg4 e2 f6 e1R f7 b3 a5 Kb4 c5 e3 c6 b2 a6 b1Q c7 e2 h6 Nc6 a7 Nd4 h7 Ne7 Nh3 g1N Bb2 Ngf3 Ra6 Nh2+ Kh4 Ng6+ Kh5 Bd6 Bg2 Bf4 Ra3 d6 Bc1 Nf1 Ra5 Bb7 c8Q Qc7 Bf3 Qc4 Qe6 Rae8 a8R Bc6 Qe4 Re5+ Ng5 Kb3 Bg2 b4 Ba3 Ka2 Bf3 b3 Rh3 b2 Bc5+ Ba4 Bb6 Ka3 Ba7 Qa1 Bg4 b1N Be6 Nc3 Bd5 Rhe8 h8Q Nd1 Qh7 R8e6 Qh1 Re3 Qg1 R6e4 Be6 Qac1 Rf5 Re5 Ne4 Bc6 Rg5 Bd5 Nc5 Bf3+ Bg4 R3e4 Rf5 Nfe3 Qg8 Nb2 Qh2 Rh1 Qg1 e1R Qh7 Re2 Qf2 Qg1 Qe1 Nf1 Rf8 R2e3 Ra8 Bd1 Be2 Bc2 Bd1 Ba4 Bc2 Bd7 Bb1 Nd1 Rg5 Nh8 Kh4 Bg4 Rh5 Be2 Rf5 Nf3+ Kg4 Ng6 Kh5 Nd4+
rQ1n4/1N1Q1b1p/r1Q1pP1P/2q1Npk1/B7/pqqr1R2/6P1/B1b1bKn1 w - - 0 1 legal: proof: b4 c5 e4 b5 f4 f5 a4 bxa4 d4 cxd4 Ra3 g6 Rf3 fxe4 f5 Nh6 f6 Ng8 Rf5 gxf5 c4 Kf7 h4 Kg6 c5 a5 c6 Ra6 b5 d5 c7 e3 b6 d3 h5+ Kg5 b7 d4 h6 d2+ Ke2 d3+ Kf3 e2 Kf2 e1B+ Ke3 Be6 c8Q Qd5 Rh2 Nd7 b8Q Ne5 Qa8 Nf3 Ne2 Ng1 Rh4 Bf7 Rf4 e6 Na3 Ne7 Qc3 Nc6 Nc4 Ba3 Ne5 Rd8 Qb2 Qc5+ Nd4 Rf8 Qab7 Rfa8 Rf3 Nd8 Qb1 Bb2 Qc6 Ba3 Qbb7 Bb2 Qdb3 d1Q Qbd7 d2 Bb5 Qdc2 Qb4 d1R Bd2 Qb3+ Bc3 Bd2+ Kf2 Bbc1 Bb2 Be1+ Kf1 Rd3 Bc3 Qcc4 Qbd6 Qc5 Qb8 a3 Qe4 a2 Ndc6 a4 Na5 a1Q Nb7 a3 Ba4 Qd6 Qec6 Qc5 Bd4 Qab2 Bc3 Qd2 Ba1 Qdc3
Q4bkn/2Pr4/NpQq2b1/1RN2rK1/P3r2p/1np1nqQ1/3pbB1P/3B4 w - - 0 1 illegal: No proof kernel
3knr2/4ppp1/1q1b1Q2/4nPqP/bP1Nn1Br/2K1R3/3Rp3/1rBQb1Q1 w - - 0 1 illegal: Other
4b1nr/1k2N3/3prR1Q/pq1b3p/2QP3P/1Pp1rq1K/3n1NRb/Qq1B4 w - - 1 2 legal: proof: f4 b5 c4 d5 a4 dxc4 f5 bxa4 b3 g6 Ba3 gxf5 Bb4 f4 Bd6 exd6 Kf2 Kd7 e4 Kc6 d4 a5 h4 f5 g4 h5 Kg2 f3+ Kg3 c3 e5 c2 g5 c1Q e6 f4+ Kh2 a3 g6 a2 e7 f2 e8Q+ Kb7 g7 c5 Be2 f1B Bd3 c4 Bg6 c3 Qee1 f3 Qe6 f2 Qe7+ Bd7 Be4+ Nc6 Qg5 Bc4 Bg6 f1Q Qh6 Qb6 Nd2 Re8 Ne4 Ne5 Nf2 Re6 Ne2 Bd5 Nf4 Be8 Rg1 Nc4 Bc2 Nd2 Rg2 Qb1 Kh3 Qbb5 Ng6 Be7 Qc1 Bg5 Ne7 Bf4 Bd1 Bg3 Qa3 Qfe2 Qa4 Qf3 Qc4 Nf6 g8Q Re3 Qf7 Ng8 Qf1 Q1d3 Rc1 Qb1 Qc4 a1R Qa4 Be4 Qfc4 Bd5 Rc2 Ra2 Rc1 Rc2 Qa1 Rb2 Be2 Re6 Rf1 Rc2 Bd1 Rc1 Be2 Re1 Bd1 R1e3 Ng4 Qe2 Rf6 Qf3 Nf2 Bh2+
1Q5R/1r4pr/1n1Q1P1N/K1n1q2b/nRp3PB/p1P1b1bN/rR5p/3q3k w - - 0 2 legal: proof: h4 f5 a4 d5 e4 b5 h5 bxa4 h6 f4 Bc4 Qd6 Ke2 f3+ Kd3 dxe4+ Kc3 Qxh6 Bf1 Qh2 Be2 fxe2 Kb4 Kd7 d4 Kc6 f4 Kd5 g3 e1N f5 h5 f6 c5+ Ka5 e5 b4 h4 c3 e3 b5 Ke4 b6 e2 b7 a3 d5 a2 d6 c4 d7 h3 d8R Na6 b8Q Rh7 Qa4 Ne7 Qe8 Nd5 Be3 Bg4 Nf3 Nd3 Rd7 e1Q Bc5 Bh5 g4 Nb2 Qe7 Na4 Ng1 Qd1 Qe6 Ndb6 Qd8 Rb8 Ne2 Kf3 Bf2 Kg2 Be3 e4 Bf2 e3 Ng1 e2 Rb7 e1B Na3 Qe5+ Nb5 N6c5 Rb1 a1R Qed6 Ra2 Bh4 Bg3 Rb4 a6 Nd4 h2 Nh3 Be7 Nf5 Bf8 Re7 Rb7 Re8 Be7 Re1 Bf8 Re2+ Kh1 Q6b8 Bd6 Nh6 Bf2 Rh8 Be3 Rb1 Bc7 Reb2 Bd6 Kb4 a5+ Kb5 Qe8+ Qd7 Bg3 Rb4 Qe5 Qdd6 Qg1 R1b2 Qd1 Rd2 Nb2 Rc2 a4 Ka5 a3 Rd2 N2a4 Re2 Qe1 Reb2 Qd1
r4q2/2BRN1r1/r2p2p1/1q2pPp1/1kP1K1n1/nN6/bR3qPb/Q1Q1bQ2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 b5 fxe4 Bc4 a6 Be6 axb5 Bf5 b4 Bg6+ hxg6 Kd2 b5 a4 e3+ Kd3 e2 f4 e1B h4 b3 f5 b4 h5 b2 a5 b3 c3 Rh7 h6 Nc6 a6 Na5 a7 Nc4 Bg5 Na3 Rh2 Nf6 Qf3 Ng4 Ke4 d3 Qd1 d2 Qc2 d1R Nf3 Rd6 Qe2 Ra6 Nbd2 b1Q+ Qd3 e5 Ra2 d6 Nh4 Kd7 Rb2 Qa2 Qf1 Kc6 Rh3 Qe8 Bd8 Kc5 Bc7 Be6 Rh2 Be7 Rh3 Bg5 Rh2 Rh8 h7 Rg8 h8Q Bf4 Qh6 Qf8 Rh3 Bh2 Rg3 Rc8 a8Q Bc4 Qhf4 Kb5 Qa7 Ra8 Rh3 g5 Ng6 Ka4 Ne7 g6 Rh7 Rg7 Nf3 Kb5 Qc1 Ka4 Nd2 Kb5 Rc2 b2 Nb3 b1Q Qag1 Qbb2 Qa1 Ka4 Qc5 Bg8 Rf2 Qe2+ Qe3 Qb5 Qec1 Be6 Rb2 Bg8 Nd4 Bb3 c4 Kb4 Rh8 Qf7 Rd8 Qg8 Rd7 Qf8 Rd2 Qb2 Rf2 Ba2 Nb3 Qc3 Re2 Qg3 Rb2 Qf2
1n2n3/1P1p1pBr/2r5/3q1b2/pb1PQ1r1/Q2K1B1b/RN2pqP1/1N1n1kN1 w - - 0 1 illegal: No proof kernel
1nbn4/K3Pb2/p1QPb3/PQ3n2/1R2N1pQ/2rrNq2/2p1Bpbb/B5k1 w - - 0 1 legal: proof: b4 d5 a4 c5 f4 cxb4 c4 h5 g4 hxg4 c5 e5 Ra3 exf4 Rc3 Bd7 Rc2 Bc8 Rc4 dxc4 Kf2 Ke7 e4 Ke6 d4 b5 h4 f5 c6 g5 e5 Kd5 e6 Ke4 c7 g3+ Ke2 f3+ Kd2 a6 h5 b3 Kc3 f4 a5 g4 d5 b4+ Kb2 f2 h6 f3 h7 g2 Rh2 c3+ Ka1 b2+ Ka2 c2 Kb3 Bd6 Kc4 b3 e7 Qf8 Be2 f1B Nd2+ Ke3 Nh3 b1B Ng1 Kf2 Bb2 Nh6 Bc3 b2 Rh4 Bh2 Kc5 Nf7 Kb6 Ba2 d6 b1B Rh3 Bae6 Ba1 Nd8 Nc4 Ba2 Qd3 Bf7 Ne3 Bae6 Qb5 Ra7 Bd3 Ra8 Ne2 g1N Nc3 Bg2 Rh5 Ne2 Ne4+ Kg1 Bc4 Nd4 Be2 f2 Re5 Bb7 c8Q Nf5 Qcc6 Bbc8 Rd5 Ra7 Rd4 Rd7 Rb4 Rc7 Qb7 Rc6+ Ka7 Rc3 Q5c6 Rd3 Qbb5 Rg8 h8Q Rg5 Rd4 Rh5 Rb4 Rh3 Qh4 Rc3 Nf1 Rhd3 Ne3 Qh6 Qcd5 Qf4 Qdc6 Qf3
3NQR2/pKpp2r1/3Q1QR1/b2PP1Bp/P2r2Bq/2n1r2n/k4nb1/2rb4 w - - 0 2 legal: proof: f4 g5 c4 e5 c5 exf4 c6 bxc6 Qb3 c5 Qd1 c4 b4 Ba6 h4 gxh4 Nc3 Nh6 Nb5 Bc8 Nd4 Ng8 Nb3 cxb3 Kf2 Ke7 Kf3 Kd6 Ke4 h5 a4 f5+ Kd4 b2 g4 b1R e4 h3 b5 f3 d3 f2 b6 f4 b7 h2 g5 f3 g6 Qh4 g7 Nh6 g8Q Rb4+ Qc4 Rh7 Ba3 Ng4 Bb2 Na6 b8Q Nc5 Rb1 Bb7 Bh3 f1B Bc1 f2 Nf3 Be2 Ng5 f1R Rg1 h1N Ne6 Rg7 Rb2 Bf3 Rf2 Be7 Qf8 Re8 Nd8 Bd5 Qh8 Bg5 Qg8 Bd2 Rgg2 Re6 Qe8 Be1 Be3 Bd2 Qa1 Rc1 Qc3 Bd1 Rf8 Rb3 Qa1 Ba5 Qb4 Rf6 Qac3 Rf4 Rg1 Bb7 Kc4 Ra3 Kb5 Rb3 e5+ Kd5 d4 Ne4 Qd2 Ba8 Ka6 Rbc3 Qa3 Kc4 Qae7 Kb3 Qd3 Ka2 Qf1 Rd3 Qd6 Nc3 Qf3 Be4 d5 Rd4 Qf1 Rf3 Kb7 Rg3 Bh6 Re3 Qff6 Bef3 Rg3 Bg2 Bf4 Nh2 Rg5 Nf3 Rg6 Nf2 Bg5 Ng1 Bg4 Ngh3
Q1n3Qq/rr1kr3/B1R2bbp/P1B1pNpn/5r2/4p1RP/b1P5/n4RK1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 c5 Na3 c4 Nb5 dxe6 Nd4 e5 Nb3 cxb3 Qe2 e4 Qf3 Nf6 Qd1 Ng8 d4 g5 f4 e5 Kf2 b5 a4 h6 f5 e3+ Kg2 g3 a5 b2 h3 b1R f6 b3 f7+ Kd7 d5 b4 d6 b2 Ra2 b3 Qh5 Bg7 f8Q Nf6 Ra3 Nc6 Ra2 Ne7 Bd3 Rh7 Qf3 Nh5 Bc4 Bf6 Ne2 Ra7 Kg1 g2 Qg7 Qh8 Ra4 Bb7 Bd3 Be4 Ba6 Bg6 Qg8 Nc8 Qa8 Rg7 Ng3 Re7 Kh2 g1N Nf5 Ne2 Rf1 Nd4 Kg1 Ra1 Rc4 b1B Rc6 Ra4 Ba3 b2 Bc5 Ba2 Rf3 b1R+ Rf1 Rbb7 Rf3 Re8 Rg3 Kd8 d7 Nb3 Rb6 Kc7 d8R Na1 Rd1 Re7 Rf1 Rf4 Rc6+ Kd7
r5b1/2QR3r/k1b1PppK/r1pBQN2/3n4/2n2P1R/P1r1p2q/4BQbn w - - 0 1 illegal: No proof kernel
3k1rN1/pRpPp2Q/BQ1Q2pq/1nR5/2Prbr2/2P1nb2/2bB1b2/nK6 w - - 0 1 illegal: Other
1R2brr1/1pR1p3/1Q1bB1pn/3p3q/3r1Pn1/bP2r2P/6nK/1k2NRBQ w - - 0 1 legal: proof: g4 c5 e4 h5 d4 hxg4 b3 cxd4 e5 a5 e6 a4 Nc3 a3 Na4 fxe6 Be3 e5 Bc1 e4 Nb2 axb2 a4 Kf7 f4 Ke6 Kf2 Kf5 Kg3 b1R c4 d5 c5 g6 h3 e3 a5 Ke4 a6 e2 a7 e1N c6 d3 c7 d2 Ba3 Bd7 c8Q Ng2 Ba6 Be8 Bf1 Bg7 Be2 Be5 Ra2 Nh6 Rb2 Rf8 Bc5 Bd6 Bd4 Nd7 Bf2 Nf6 Bf3+ Kd3 Qdc1 d1R Q8c7 Qc8 Bd4 Qf5 Kh2 Qh5 Rc2 Rb2 Rc6 Re2 Qb6 Re3 Rc7 Rd2 Bc5 Rb8 Qa1 Kc2 a8R Rd4 Qe1 Rd8 Rb8 Rc8 Bd1+ Kb1 Nf3 Rg8 Qf1 Rd8 Ne1 g3+ Kg1 Rf8 Bg4 Rg8 Be6 Nfg4 Rc6 Bd7 Rcc8 Rdf8 Rc7 Be8 Qf3 Nh4 Qf1 g2 Qf3 Nf6 Kh2 g1B+ Kg3 Bf2+ Kh2 Ng2 Rf1 Nh4 Qh1 Ng2 Nd3+ Be1 Nc1 Bd2 Nd3+ Bc1 Ne1 Ba3 Bb4 Rg3 Bd2 Rf3 Be3 Rg3 Bf2 Re3 Bg1 Nfg4+
5q2/rpR4R/5B2/1P4b1/1q1Qnp1p/k3bPr1/p1PN1Q1B/Kbbbn2B w - - 0 2 legal: proof: e4 d5 h4 dxe4 b4 g5 a4 gxh4 Nc3 c6 Nb5 cxb5 Ra2 bxa4 b5 a3 Ra1 Qd6 Rb1 Qd3 Ra1 Qd8 d4 Kd7 Kd2 Kd6 Kc3 f5 g4 e5 g5 a5 d5 Kc5 d6 h5 g6 h3 g7 h4 d7 h2 Rb1 e3 Qe1 e2 Rb4 e4 Bh6 a2 Kb2 a1B+ Kb1 e3 Bg5 a4 Bh3 f4 Bf6 a3 Qc1 e1B Nf3 e2 Ne5 Bd4 Ka2 Na6 Qb1 Ra7 Nc4 Bd2 Bg5 e1Q Na5 Nf6 g8Q Be7 Bg2 Ne4 Qa1 Qf8 d8B Bg4 Bf6 Bd1 Qg3 Rg8 Rg1 h1B Nc4 Bc1 Nd2 Be3 Rb3 Rg7 Rc3+ Kb4 Bb6 Nac5 Qh2 Nd3 Rc7 Rg4 Qc3+ Ka4 Ka1 Rg3 Bf3 Bg2 Qe5 Bh3 Bh1 Be6 f3 Ba2 Qf2 Bb1 Bc5 a2 Qd4+ Nb4 Rg2 Ka3 Bb6 Nd3 Rg1 Rh3 Rg7 Rg3 Rh7 Bd8 Be5 Bg5 Bf6 Qb4 Bc5 Qe2 Bb6 Ne1 Rhf7 Qf8 Qd7 Nc3 Qg2 Bd4 Rh7 Qc4 Qd8 Be5 Bg1 Qcb4 Bh2 Bd4 Qf2 Be3 Qd4 Ne4
qq5R/2Q1R2r/Nq4pp/1nRqq1nb/3r3k/1NQP1pb1/1KP2P1p/B7 w - - 0 1 illegal: No proof kernel
2q1qQ1Q/pqp2p2/P1P1rBkn/PN2r3/3R3b/3bR3/R1np4/q1qN3K w - - 1 2 illegal: Other
3q2Q1/3n4/1qbP1k1p/pNBn3K/N1Br1p1P/6pB/1r1brP1Q/R3r1r1 w - - 1 2 legal: proof: c4 b5 g4 f5 a4 fxg4 b4 bxa4 c5 e5 Ra3 d6 Rh3 dxc5 Rf3 c4 Rf4 exf4 h4 Ke7 e4 a5 Ke2 g5 d4 c5 b5 c3 b6 c2 d5 g3 Kf3 g4+ Kg2 a3 e5 c4 e6 h6 b7 c3 Qe1 a2 Bb2 c1Q Qe5 a1R Qe4 c2 Bd4 Nd7 b8Q Qb2 Ne2 c1R Nbc3 Ra4 Bc5+ Kf6 e7 Rd4 e8B Bb7 Bf7 Re1 Na4 Ne7 Nec3 Qbb6 Nb5 Bc6 d6 Nd5 Be6 Bg7 Bc4 Re8 Bf5 Re2 Ra1 Re1 Qc8 Rb8 Qb1 R1e2 Qg1 Re1 Qh1 R8e2 Be6 Qdc7 Qg8 Qd8 Qg1 Rb7 Kh1 g2+ Kh2 g3+ Kh3 Bh8 Qh2 g1R Kg4 Qa7 Nc7 Rbb2 Kh5 Qb6 Nb5 Ke5 Qf8 Rdd2 Bf7 Kf5 Qg8 Bc3 Be6+ Kf6 Bf5 Rd4 Bh3 Bd2
3B3k/1P1rp2b/R2p1N2/bPpN2nb/3P3K/1q1R1Rq1/2p1n2Q/r1bb2Q1 w - - 0 1 illegal: Other
q1b1b1KB/NnQP2bR/qb1p1p2/B1p5/b1p4r/1Nn5/3P1P2/Q2Q1rk1 w - - 1 2 illegal: Other
1Q3b1n/1n1Nkbn1/BpPq1n2/1Rr1p2p/8/N6Q/pPKn1PQ1/1rB2q2 w - - 0 1 illegal: No proof kernel
3qb3/b1n1n3/1R3p2/rn1qnk1B/PqpRNp2/5P2/QrP2pK1/2BQ2R1 w - - 0 2 illegal: No proof kernel
K1QR4/3pn2p/nk1q4/2N3bP/Bqrq1p2/PBN2P1p/1Q4r1/qnNb4 w - - 1 2 legal: proof: h4 c5 d4 cxd4 b4 a5 h5 axb4 a3 e5 Bg5 e4 Bh4 g5 Ra2 gxh4 Rb2 Ke7 Rb3 Ke8 Rd3 exd3 Kd2 b5 e4 f5 c4 b3 g4 b2 g5 b4 c5 f4 f3 b3 c6 h3 c7 Bd6 g6 Qf6 g7 Ra6 e5 Be7 e6 Rc6 Qc1 Rc4 Ne2 Ba6 Nbc3 b1Q Rg1 b2 c8Q+ Bd8 e7 Qd6 Rg3 Bb5 Qc2 Na6 Nc1 Ba4 Be2 Qa1 Bd1 b1Q Rg5 Qbb4 Qb2 Bb3 Rb5 Bc2 Rb8 Bb3 Ke1 d2+ Ke2 Ba4 Bc2 d1N Kd3 Bb3 Ke4 d3+ Kf5 d2 Ra8 Nf6 g8B Nd5 Be6 Rg8 Rb8 Ba2 Ba4 Rg2 Ra8 Bb3 Bg8 Qg6+ Ke5 Qd3 Ne4 N1c3 Nc5 Bd1 Kd6 Nb1 Be6 Nf6+ Bd5 Ng8 Rb8 Qe3 Be6 Rc3 Beb3 Rc4 Ra8 Nf6 Rb8 Nd5 Ra8 Qd4 Rb8 Kf7 e8N Bg5 Nc7 Ne7+ Nd5 Bc2 Qb7 d1Q Rd8 Q1d2 Qc8 Bd1 Rh8 Nb8 Kc7 Na6+ Kd8 Q2d3 Nc3 Qg6 Rg8 Qgd6 Qc6 Nf5+ Kc8 Kf6 Rd8 Ke5 Bb5 Ne7+ Kb7 Bc2 Qc8 Bd1 N3e2 Kd5 Ka8 Qa5 B5a4 Qb5 Qb8 Kc6 Qc8+ Kb6 Nc3 Qb4
q4qrn/b1pPN1r1/2p1bRQ1/2P3N1/pR3K2/1Pn5/nk3r1p/1n3BQR w - - 0 1 illegal: No extended proof kernel
2b2KR1/1Rn1p2P/b2rPb2/Q6q/3Rrq2/1Np3qn/1pPBbpQ1/3k1N2 w - - 1 2 legal: proof: f4 a5 g4 h5 b4 hxg4 e4 axb4 e5 d5 Bh3 g5 Bg2 gxf4 Be4 dxe4 Ke2 Kd7 d4 Ke6 a4 Kf5 h4 b5 d5 c5 a5 e3 Kd3 e2 d6 e1Q e6 f3 a6 c4+ Kd4 g3 Kc5 Kg4 d7 f5 h5 b3 h6 c3 h7 b4 a7 g2 Rh2 b2 Bg5 b3 Bc1 f4 Na3 b1B Qd2 f2 Qe3 f1B Qd3 b2 Qa6 f3 Ra2 f2 Rh5 Nf6 Qd3 Qd2 Ra1 Bg7 Qb5 Nd5 Rf5 Qe8 d8R Bf6 Nf3 g1Q Nd4 Qg3 Nb3 Qdf4 Nc4 Kf3 Ra4 Ke2 Qa5 Kd1 Ncd2 Bfa6 Rd4 Qh5 Rg8 Ba2 Rfg5 Be2 Re5 Na6+ Kc6 Rb8 a8Q Nac7 Rf5 Rb4 Nf1+ Bd3 Bd2 Bda6 Rfg5 Be2 Rg4 Ra4 Rb4 Bea6 Rb7 Re4 R8g7 Rd8 Rg8 Qfg5 Rh4 Nf4 Rg4 Nh3 Rh4 Re5 Rd4 Qf5 Qd5 Be2 Qaa5 Qff4 Qg2 Re4 Nc5 Bac4 Nb3 Nd5 Kc5 Nb6+ Kc6 Rd6+ Kc7 Rc6+ Kd8 Ba6 Rd6 Na8 Rd4 Qhe5 Ke8 Rd6 Kf7 Qh5+ Kf8 Nc7
1q3qk1/p1Bp4/p2P1n1b/NpQRQ3/1PP2Q2/Nnq2Kn1/b5r1/3n1B1r w - - 1 2 legal: proof: f4 g5 b4 e5 h4 exf4 a4 gxh4 a5 c6 a6 bxa6 Ra5 Bg7 Rh5 Bf8 Rb5 cxb5 Kf2 f5 g4 Kf7 d4 h5 e4 h3 g5 h4 c3 h2 e5 h3 d5 f3 d6 f4 Qa4 Nc6 Qa5 Nf6 e6+ Kg8 g6 Bh6 g7 Nd4 e7 Nb3 Qa3 Bb7 Qa4 Qb8 Be3 Bd5 Ne2 Bf7 Rg1 h1Q Nd4 h2 Rg5 Bc4 Na3 Bd5 Bc4 Qa1 Bf1 Be6 Nc6 h1N+ Kg1 f2+ Kg2 Qc1 Rd5 Ng3 Bb6 Bf7 Bc7 f3+ Kh2 Qd2 Qa5 Qd4 Qb6 Qc5 Na5 Rh7 Bg2 f1N+ Kh3 Qc6 Qc5 Ne3 Bf1 f2 Kh2 Nd1 Kg2 Be6 Kf3 Bf7 Bb6 Qcc8 Bc7 Qf8 e8Q Rh8 Qe2 Be6 Bg2 f1Q+ Qef2 Qe1 Bf1 Bg5 Qd2 Rh1 Qf4 Bh6 Qe5 Bf5 c4 Bb1 Qf4 Ba2 Qe5 Qb7 Qf4 Re8 Qe5 Qb8 Qf4 Re2 Qe5 Rg2 Qf4 Kf7 g8Q+ Ke8 Qgg4 Kf7 Qgf5 Kg8 Q5e5 Qc3+
bQ2Qb1r/Nqp3P1/4p1pR/6P1/1pBq1k2/1P5b/N1K1Bnn1/2r1bNq1 w - - 1 2 illegal: Other
1rr2q1R/2Q5/B3Kpp1/bp4QP/1B1q1PP1/qb2q3/kn1n1r1p/N1B3N1 w - - 0 2 illegal: No possible last move
1BQ1RN2/Q1p1R2P/n1N3pP/qbP1pQ2/1bn1q3/1k4r1/p7/1rbb1nK1 w - - 0 1 illegal: Other
1b5Q/3QR1r1/1q1b2N1/pr2P3/2b1q2p/P4nN1/RQ1ppP1k/Knr1r2B w - - 0 1 legal: proof: e4 b5 h4 e5 c4 bxc4 d4 exd4 h5 f5 h6 f4 Be3 fxe3 Rh5 gxh6 Rh2 h5 Rh1 h4 g4 Ke7 b4 Kf6 b5 Kg5 b6 h5 a3 a5 b7 d5 Qc2 c5 Kd1 e2+ Kc1 c3 Qb2 c4 Kc2 d3+ Kc1 h3 Qc2 Kh4 g5 d4 g6 h2 g7 Nd7 b8Q Bd6 Qbb2 Ne7 g8Q Rh7 Nh3 Ne5 Qf7 Ba6 Nf4 Nf3 Qcb3 d2+ Kc2 d1R Nh3 Nd5 Ra2 Rg7 Qe8 Qb6 Qa1 Re1 Qc6 Rb8 Rg1 h1Q Nd2 Rbb7 Qc1 d3+ Kb1 c2+ Ka1 c3 Bg2 Bc4 Qd1 c1B Nf1 c2 Ng3 Nc3 Qb2 Bcf4 Qe8 Nb1 Qh8 c1R Qa4 d2 Qd7 Bfe5 Nf4 Rb8 Qa7 Kg4 Ng6 h4 Qc7 Rb7 Qf7 Bb8 Qe7 Bed6 e5 Rc7 Qf7 Rc5 Qfe8 Rb5 Qd8 Qh3 Bh1 Qf1 Qe7 Kh3 Qd7+ Kh2 Nh5 Bb3 Rg4 Qg2 Ng3 Bf7 Rf4 Be6 Rf7 Bd5 Re7 Bc4 Ne4 Qg4 Ng3 Qe4
B1bQq3/4b1Np/k1N3bP/p1b1pQ2/n1Prp2n/P1q2n2/2r1BQ2/4K1R1 w - - 1 2 legal: proof: e4 f5 b4 d5 a3 dxe4 b5 f4 b6 cxb6 Ra2 b5 Bd3 b4 Be2 Na6 Bf1 Nb8 Rb2 g6 Rb3 g5 Re3 Bg7 Bb2 Bh6 Be5 fxe3 f4 Bg7 f5 Bf8 Bf4 gxf4 g4 Kd7 h4 Kc7 d4 Kb6 c3 a5 d5 b3 g5 b2 f6 f3 h5 e2 h6 f2+ Kd2 e1B+ Ke2 Nd7 f7 Qe8 g6 Ka6 g7 Nb6 d6 Na4 Nd2 b1N Ndf3 Nd2 Bg2 f1Q+ Ke3 e6 d7 Bh4 d8Q Qe1+ Ne2 Ne7 g8B Ng6 Ne5 Bhe7 Nc6 Nh4 Rg1 Bc5+ Qd4 Bfe7 f8Q Rb8 Bf7 Rg8 c4 Rg4 Qc2 Qa1 Kf2 Qc3 Qh8 Qf8 Bf1 Qg8 Qg7 Qe8 Qb2 Nb3 Qd2 Rg2+ Ke1 Bd7 Qg4 Rd8 Qh3 Bc8 Nf4 e5 Qd6 b6 Qc7 Rd4 Kd1 Re2 Ne6 Rh2 Qdd3 Rc2 Qd8 Nd2 Qe2 b5 Qf5 b4 Ng7 b3 Qc7 b2 Ke1 b1B Qd8 Rb2 Qef2 Bd3 Na7 Rc2 Bd5 Be2 Ba8 Bh5 Be2 Bg6 Nc6 Ndf3+
r2b2QR/2p1Np1b/Q5b1/1qqKB1P1/nN1npP1r/1N5b/4kp1P/1B2q3 w - - 0 1 illegal: No possible last move, all moves rejected
2B5/Q2P2q1/2p2pN1/5Kr1/1Q1RnR2/b2rPPb1/1pqN1pn1/Q1rrkb2 w - - 0 1 legal: proof: h4 d5 c4 dxc4 b4 e5 h5 a5 f3 axb4 Bb2 e4 Bd4 g6 Bf2 gxh5 Qc1 e3 Kd1 exf2 Qc2 h4 Kc1 Be7 Qd1 Bf8 Kc2 Kd7 g4 Kc6 a4 Kc5 a5 Kd4 a6 b5 g5 h5 d3 Ke3 a7 c3 g6 f6 d4 b3+ Kc1 h3 g7 b4 d5 c6 d6 b2+ Kc2 h4 d7 h2 Qd5 b3+ Kd1 h3 Ra4 Ba6 Rh4 Ne7 g8Q Ng6 Qgf7 Rg8 Qg5+ Nf4 Qf5 Qe7 Q5d5 Ng2 Qfh5 Qg7 Qc4 Bd6 Qh8 Bg3 Qh7 Bb5 Na3 Na6 Rf4 Nc5 Qb1 Ne4 Qb4 Rae8 a8Q Re6 Rf5 Rd6+ Rd5 Ba6 Qa1 Bc4 Rd2 Rd3 Qab8 Rh8 Qa8 Rh4 Nb1 Rg4 Q8a3 Rd6 Rd5 Ba6 Nd2 b1Q+ Qc1 Qd3 Qca3 c2+ Kc1 Qc4 Rd4 Qc5 Kb2 c1B+ Kb1 Bc4 Qa8 Ba3 Qa7 b2 Kc2 Ng5 Rf4 Rd3 Qbb8 Ne4 Qb4 Kd4 e3+ Kd5 Qb1 Rd4 Nb3 Nc3 Ne2 Bb5 Rg1 h1R Qa1 h2 Rf5+ Be5 Qba5 Kc4 Q5b6 Bg3 Nf4+ Kb4 Ng6 Qc4 Bd3 Rd6 Rb1 Rf1 Be2 h1R Rd1 Re1 Rdd5 Rc1+ Kd2 Qc5 Bc4 Rhg1 Kd3 Rge1 Rf4 Red1+ Nd2 Ne2 Ke4 Nc3+ Kf5 Ne4 Be2 Qc2 Nb3 Kc3 Bd3 Ba4 Ba6 Bb5 Bc8 Bf1 Nd4 Kd2 Nb3+ Ke2 Nd2 Ke1 Rd3 Rd4 Qb4 Rd6 Rc3 Rd4 Rc4 Rd3 Rd4 Rg5+
4N1B1/n2r2PQ/nQPpN2r/bq2R3/kqb1nr2/p2P4/rpp3K1/1R5R w - - 0 1 illegal: No proof kernel
3b1B2/4nb1Q/Rbp1rn1Q/Nk2r2B/5ppP/2PN1n1n/p1Pq3q/6QK w - - 0 1 illegal: Other
Q1QQr3/pN3k1p/5q2/2qPb2b/2nb2rK/PBp5/2Ppn3/NrR1Bb2 w - - 1 2 illegal: No proof kernel
1r5Q/nqk3pN/2rR1b2/pq1P1BNR/n1P2p1q/1p3b2/2r1q1PR/1Q1K4 w - - 0 1 illegal: No possible last move, all moves rejected
q1B2b2/P1K3p1/bb1rQbp1/bB5p/p2Q2P1/B2bn1nR/4r1RP/1kN5 w - - 1 2 illegal: No possible last move, all moves rejected
k4B1Q/2pP3N/n2rNQr1/2Pqr3/Rp2Pr2/6p1/pb3Nr1/1b1RKr1n w - - 0 1 illegal: No possible last move, all moves rejected
2bb4/pb3PN1/n4RQP/5K2/Pp1Rp1rr/2bpQ1QN/2qb4/1n1k2Bb w - - 0 1 illegal: No possible last move
1RBbknr1/2B5/2PRprn1/2p1Q2K/qpP3p1/1Qrb2bb/1rBNP3/8 w - - 0 2 illegal: Other
8/1qQpp2N/k3P1pN/3Kp1P1/Pnr1R1n1/1Q3bb1/3NRpqq/4nr1B w - - 0 2 illegal: No proof kernel
b3B1q1/q3P3/2pQ3K/1P2Rp2/N1n1pP2/2bQ2p1/qR2rp2/nNkr2rQ w - - 0 1 illegal: No proof kernel
1k6/1N1p2p1/q1Rr3N/2q2ppK/BR3P1Q/Q3P1pb/1r1qnb1P/1Rn1n3 w - - 0 1 illegal: No proof kernel
5N2/QR2b1q1/2pkpPq1/1p1p2p1/2r1PN1r/1P3Bn1/K1r1b1n1/1bQ1R2N w - - 0 2 illegal: No possible last move, all moves rejected
4bq2/pp2Rbp1/k5r1/1pP4p/nr2n3/bKP2BR1/QP2nB2/Q3q1NQ w - - 0 1 illegal: Other
3RBrNB/n5nQ/1rp3K1/1rPpR3/2Q2R2/4p2b/Pp1Pp2b/1r1qb1k1 w - - 1 2 legal: proof: f4 a5 g4 g5 b4 gxf4 e4 axb4 Nc3 f5 g5 fxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 Ke2 Kf7 c4 Ke6 h4 Kf5 g6 e5 g7 b5 c5 d5 h5 f3+ Ke3 b3 h6 g3 h7 Kg4 Bd3 b4 Bc4 g2 Nh3 Kg3 Re1 Kh2 Rf1 g1B+ Nf2 b2 Qa4 b1R Re1 b3 Bf1 Qe8 Qd7 Ne7 g8Q Nbc6 Ba3 b2 Rd1 Ra6 Bc4 Na7 Qf5 Qh5 Qgg4 Rb6 Bb4 c6 Bc3 Bg7 Be2 Bf6 Rf1 Bh4 Qfg6 Rd8 h8R Bf5 Rg8 Rdb8 Rd8 Bg3 Qh4+ Bh3 Qh7 Rb5 Bd4 R8b6 Bd3 Kg2 Re1 B1h2 Ng4 f2 Nh6 f1R Ng8 Rf7 Rf1 Qg4 Rf4 Qd1 Be2 Rf8 Bh5 Be1 Be8 Kg1 Qg4+ Beg3 Qe2 Be1 Qc4 Qc1 Ke2+ e3 Kf3 Nf5 Bc3 Bg2+ Kg4 e4 Kh5 Bh3 Bh8 Ng7+ Kg6 e2 Rf5 Qc2 Re5 Rd1 Rc1 Qa4 Rc3 Rb1 Rf3 e3 Rf4 Qd1
5B2/N1bp2pn/BppN2P1/pP6/1Qn1BP2/4qr1k/nQK4n/1r2bbR1 w - - 1 2 illegal: No proof kernel
6nQ/nnpk3K/4p2p/1p3PRN/1rP2rB1/1n1rNb1p/1P2R1qb/2Q3N1 w - - 0 2 legal: proof: e4 f5 h4 g5 a4 gxh4 a5 d5 a6 f4 d3 dxe4 Ra4 Be6 Be3 fxe3 Ra1 Ba2 Ke2 Nxa6 Ke1 Nb8 Ke2 a5 g4 b5 f4 e6 c3 h6 g5 h3 f5 a4 d4 a3 d5 Ra4 d6 Bd5 c4 a2 g6 Rb4 g7 Qg5 Rh2 Kd7 Qc1 Nc6 Nc3 Na7 Nd1 Bb7 Rb1 a1N Rg2 Qg6 Rg5 Nb3 Bg2 Be7 Bf3 Bf6 Ra1 Be5 Bg4 Bh2 Ra3 Ne7 Ra1 Rd8 g8N Qg7 Ke1 e2 Kf2 e1N Ne3 Nd3+ Ke2 Kc6 d7 Ndc5 Nf6 Ng8 Nh5 Ba8 Kf2 Nb7 Ra3 Nd4 Rc3 Nb3 Rc2 Kd6 Re2 Ke7 Nc2 e3+ Kf3 Kd6 Rg2 e2 Ne3 e1R Re2 Rf1+ Ke4 Rc8 d8Q+ Kc6 Qf6 Rf4+ Ke5 Qg6 Qg7 Rd8 Qh8 Rd3 Rd2 Ne7 Re2 Qg8 Kf6 Kd7 Nf1 Qd8 Kg7 Ng8 Kh7 Qf6 Rc2 Qe5 Ne3 Qd5 Re2 Qg2 Nc2 Nd8 Ne3 Bf3 Qd1 Nb7 Qc2 Rd1 Qc1 Rd3
1Q1BBr2/Pp1Np1nq/p1r1k3/1bn1b3/NK2b2p/2p2Q1R/PP1N1n2/6b1 w - - 0 2 illegal: Other
3q1RQ1/3RBrP1/1Q1bnP2/Rq3kqn/p4ppp/1r1bpqP1/2K5/NN6 w - - 0 1 illegal: Other
2QN1b2/1Q4pB/3p4/b3rPr1/ppqR1Nnn/4bPB1/pPk3N1/q4b1K w - - 0 1 illegal: Other
8/Q1pQRR1q/p1n2br1/B1p1bpkn/K1PB1r2/3B1b1p/P2p1P2/r3N3 w - - 0 3 legal: proof: h4 g5 e4 gxh4 d4 b6 d5 e6 Nc3 exd5 Na4 dxe4 Nc5 bxc5 Qd4 e3 Qd2 Nf6 Qd1 Ng8 b4 Ke7 g4 Kf6 c4 d5 b5 h5 b6 d4 b7 h3 Bd3 h4 Nf3 h2 Ng5 a6 Ba3 e2 Kd2 e1B+ Kc2 Rh6 Kb3 Bg7 Nf3 Bc3 Ne1 Nc6 b8B Kg5 Ka4 Qe7 Ba7 Bb7 Bb2 Rg6 Bb6 Bf6 Ba5 Rf8 Rg1 h1R Rc1 Kf4 g5 h3 Rg3 Be5 Rf3+ Kg4 Rc2 Nf6 Re2 Nh5 Ree3 f6 Ba1 Qh7 Bb2 Rh6 g6 Kg5 g7 Rg6 g8Q Rf7 Qb8 Rf1 Bf5 d3 Qa7 d2 Bd3 Rh1 Qb3 Bcd4 Qb5 Rf8 Ng2 Ra1 Ne1 Nb4 Rf4 Bf3 Qd7 Nc6 Bbc3 Bd6 Re7 B6e5 Rh4 f5 Re4 Rfg8 Rf7 Bf6 Ree7 Bde5 Bd4 Rd8 Qc8 Rd5 Qd7 Rd6 Bdc3 Rd4 Bb2 Rh4 Bd4 Rf4
2Nb2kr/3N1b1r/R1p2p2/1pQn2P1/qn1KPN2/p7/Pqp2RpQ/2r1B3 w - - 0 1 illegal: No proof kernel
K1B1bb2/2p1Np1N/p1q1R3/1rpn3q/q6B/pkPn1pP1/1r2PQ2/Q6N w - - 0 1 legal: proof: f4 b5 h4 e5 b4 exf4 a4 bxa4 h5 d6 Ra3 g6 Rah3 gxh5 Rc3 h4 Rc5 dxc5 Kf2 Ke7 Kf3 Ke6 Ke4 h5 d4 h3 d5+ Kd6 c3 a3 g3 a6 b5 h2 b6 h4 b7 h3 Nd2 Qf6 Ndf3 Be7 Ng5 Bd7 Nh7 Nc6 b8N Nb4 Nc6 Bf8 Ne7 Ba4 Bd2 Qg7 Qa1 Qg4 Bg2 Bc6 Bf3 Qd7 Bg4 Rb8 Bc1 Qe8 Bc8 Nd3 Be3 Bb5 Bd4 Bc6 Bf6 Rb2 Bh4 Bd7 Nf3 Bb5 Nfg5 f3 Rb1 h1Q Rd1 h2 Nh3 Ba4 Nf2 Qc6 Rb1 Qd1 Nh1 Rb7 Rb6 Nf6+ Ke3 Ke5 d6 Bb5 d7 Qa4 d8Q Nd5+ Kd2 Rg8 Qd7 Rb8 Qh3 Rg4 Qg2 Rb4 Qgf1 Qd6 Qf2 Be8 Rc6 R8b5 Rb6 Nf6 Ke3 Rb2 Nc6+ Kd5 Ne7+ Kc4 Rc6 Nd5+ Ke4 Qh6 Re6 N5b4 Rf6 Kb3 Re6 Nc2+ Kd5 Qf6 Bd7 Ne3+ Kc6 Qg6 Qg2 Nd5 Qf2 Ra5+ Kb7 Rb5+ Ka8 Qh6 Bc8 Qg6 Qg2 Qge4 Nf2 h1Q Qgf1 Qh3 Nh1 Qhg4 Qf2 Qh5 Rc6 Qe6 Rb6 Qd7 Re6 Qc6+
2q1rnnk/pBRR2rP/1nN5/1q5b/1PN2P1b/5KB1/1pRr1n2/2B5 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 c4 d5 cxd5 Be6 Nf3 Bd7 Ng1 Bc8 b4 c5 a4 b5 d4 bxa4 Qd3 cxd4 Qb3 axb3 Ke2 Kf7 f4 e5 h4 g5 f6 b2 h5 g3 h6 g2 d6 d3+ Kf2 e4 d7 g4 h7 g3+ Ke3 d2 Nh3 g1Q+ Ke2 d1N Ra6 g2 Ra2 e3 Ra1 Be7 Ra6 Nf2 Kf3 e2 Rc6 e1N+ Ke2 Qa5 d8R Nd7 Nd2 Nb6 Nc4 Nc2 Rh2 Qb5 Rd7 Nd4+ Ke3 Rb8 Rcc7 Ne6 Kf3 Nf8 Ng5+ Kg6 f7 Kg7 Be2 Ba6 Bd3 Re8 Be4 Qf1 Ba8 g1R Bb7 Qe1 Rg2 Qe6 Rh2 Rd1 Rg2 Rd2 Rh2 Qef5 Ne6+ Kf6 Nd8 Kg7 Nc6 Bh4 Rd8 Qc8 Rd3 Nh6 Rdd7 Rg8 Rg2+ Kh8 Rh2 Ng6 f8B Rg7 Bc5 Ng8 Be3 Nf8 Rg2 Ng4 Bg1 Nf2 Bh2 Qa5 Bg3 Qe5 Nd6 Bd3 Nc4 Qb5 Rg1 Bc2 Re1 Bg6 Re2 Rd1 Rc2 Rd2 N4a5 Bf7 Nc4 Bh5+
1bn2q1q/b4NR1/R1Bp1NP1/2kN1P2/6P1/n1nKp3/p4Bb1/1nRn4 w - - 0 1 legal: proof: d4 g5 f4 b5 e4 h5 g4 a5 a4 f5 b4 fxe4 f5 c5 Qf3 cxd4 Qe3 bxa4 Qf4 a3 h3 a4 h4 Ra5 bxa5 gxf4 Be3 Rh7 Bd2 Rg7 Bc1 Rg5 hxg5 Bg7 Ne2 Bh6 Ng1 Bf8 Kd2 e5 c4 Ke7 a6 Kd6 a7 h4 a8N f3 g6 f2 Bb2 d3 Rh2 h3 Nc7 a2 Rh1 h2 Ne6 e3+ Kc3 e2 Nc5 e1N Ba3 e4 Be2 f1N Bb4 d2 Bd1 e3 Nf3 a3 Be2 d1N+ Kd4 Nc2+ Kd3 Ne7 Ng1 Nbc6 Nf3 Na7 Nc3 Nd5 Ba5 Bb7 Ng5 Nd2 Bf3 Nb1 Nf7+ Kc6 Bc7 Nc8 Bg3 Bd6 Bf2 Bb8 N5e4 d6 c5 Qf8 Nf6 Ba8 Re1 h1Q Be4 Qh5 Rh1 Qhh8 Rh7 Bb7 Rg7 Ba8 Na4 Kb5 c6 N5c3 Nb6 Kc5 c7 Bb7 Bh1 Bg2 Nbd5 Nd2 Rb1 a1B Rb6 a2 Ra6 Na3 Ne7 Bh3 Bc6 Bg2 Ned5 Ndb1 Rh7 Ne7 c8R Bb2 Rc7 Nc8 Rg7 Ne4 Rb7 Bd4 Rb2 Nec3 Rc2 Qh3 Rc1 Qhh8 Ba8 Kb5 Bb7 Bda7 Bc6+ Kc5
1nq5/3n2n1/2B2Rb1/rP2Pq2/bb2KR2/5P2/1rkb1bN1/Rq1bB1BN w - - 0 1 illegal: No possible last move, all moves rejected
rNr5/2b1R3/1P2P2r/N2bn3/qn1bbR2/2P2brb/3KB3/kB2N1qB w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 c5 a4 bxa4 d4 cxd4 Bf4 g5 Qd3 gxf4 g5 h6 g6 Ba6 Qf5 Bc8 Qg5 hxg5 e4 Ke7 h4 Ke6 b4 a5 b5 d5 h5 f5 b6 g4 g7 f3 h6 g3 h7 g2 Bb5 f2+ Kd1 f1R+ Kd2 a3 Rh3 d3 Kc3 d4+ Kd2 f4 Rh4 a2 Nf3 g1Q Ba4 Nd7 Rh6+ Ngf6 Bb5 a4 Rh5 a3 Ne1 f3 Rh6 f2 Ng2 Qe8 Nh4 Rc1 Nf3 f1B Bc6 Bd6 Nh4 Bg2 Nf5 Bc7 Rh4 Nd5 Ne3 Nb4 Rf4 Bb7 Bb5 Bh3 Nc4 Bd5 Na5 Rc8 Bc6 Rf1 Bb5 Rf3 Bc4 Rg3 g8B+ Ke7 e6 Kd6 e7 Kc5 Be6 Ne5 Bf5 Qc6 Ba6 Qa4 Bb7 Kb5 e8B+ Kc5 Bh5 Kb5 Nc3+ Kc5 Rb1 a1B Ne2 a2 Nc1 Bb2 Be2 a1R Nc6 Kc4 Nb8 Ra3 Nb3 Ba1 Re1 Ra2 Kc1 Kc3 Na5 d2+ Kd1 Kb2 Bg6 Rhf8 h8N Rf6 Nf7 Rc6 Bh7 Rh6 Ng5 Kb1 Nf3 Bb2 Bb5 Ka1 Ke2+ d1B+ Kd2 Ra3 Be2 d3 Bg6 Bd4 c3 Ng4 e5 Be4 e6 Ne5 Rf1 Bd5 Rf2 B1b3 Rf7 Be4 Re7 Bbd5 Ne1 Qb5 Nac6 Ra8 Rf4 Qa4 Na5 Bef5 Rf2 Bb3 Kc1 Ba2 Bh1 Bd5 Be8 Bg6 Rf4 Bh7 Bb5 B7f5 Bc4 Bg6 Bb3 d2+ Kd1 Bge4 Bc2 Qe8 Bb1 Qb5 Bf1 Qa4+ Ke2 d1B+ Kd2 Bdg4 Be2 Bgf3
1NK1bbR1/2N3B1/P3r3/n1RB1b1n/1P6/R1q4q/rrp3Pn/2Nn1qk1 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 b4 a5 Qc2 a4 Qb3 axb3 a4 b6 a5 b5 Ra4 bxa4 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 f5+ Kf3 h5 e4 c4 Nh3 b2 Rh2 c3 Bb5 c2 Na3 b1R Ng5 h3 Bf1 h4 Bc4 Qd7 Bb3 Rb2 Rh1 h2 Rd1 h1N Bd2 h3 Bc3 h2 Nb1 a3 Nd2 a2 Ra1 Nf6 Ne6 Nf2 Nc7 h1Q Bc4 Rh6 Nb3 Qh7 Nc1 Nh5 Bb3 Nd1 e5+ Kd7 e6+ Kd6 e7 Nc6 e8R Re6 Bc4 Bd7 Rb8 Be8 Rb5 Qg7 Rc5 Qh4 Rb1 a1Q Ba2 Qgf6 Bc4 Qa3 Ra1 Qb3 Ra3 Ra6 Bd3 Ra7 Be4 Qh3+ Ke2 f3+ Kd3 f2+ Bf3 Qa4 Kc4 Qb3+ Kb5 f1B+ Kb6 f4 Be4 Ra8 Kb7 Bd3 Bf3 Ra6 Kc8 Bf5 Be4 Qc4 Bf3 Qf1 Be4 Ke7 d6+ Kf7 d5 Kg6 d7 Kg5 d8R Kg4 d6 Kg3 d7 Kf2 Be5 f3 Bd5 Kg1 Bd4+ f2 Be5 Qh8 Bg7 Beg6 Re8 Qc3 d8N Qh7 Re7 Be8 Rf7 Qh6 Rf6 Qhe3 Rg6 Qh3 Rg4 Qfe1 Rg3 f1N Rg5 Nh2 Rg6 Ne5 Nc6 Qf1 Nb8 Nc6 Rg4 Rb6 Rg5 Rb5 a6 Ra5 Be5 Ra4 Rg8 Na5 Bh8 Qf4 Bg7 Qf1 Rb3 Ra1 Ra3 Raa2
n3r1q1/3Bp1r1/1bNN1B2/1P3n2/kn1nK1n1/Pb1RbR2/5Pb1/1qB2R2 w - - 0 1 legal: proof: e4 d5 b4 f5 c4 fxe4 cxd5 g5 h4 gxh4 Qc2 b6 Qc5 bxc5 a3 a5 b5 Qd7 Ra2 Qd6 Rb2 Qd8 Rb4 axb4 Ke2 Kd7 Ke3 h5 d4 b3 g4 c4 g5 c5 g6 c3 g7 c4 d6 b2 d5 h3 Kf4 h4 Bg2 e3 Bf1 e2 Ke3 e1N Ne2 h2 Nd4 c2 Bg2 h3 Nd2 b1Q Kf4 c3 Ke4 Nf6+ Kf4 Nf3 g8R Bh6+ Rg5 Rh7 Rg1 h1B Re1 h2 Re4 Na6 Nf5 Ng4 Nb3 Nd4 Bb2 c1B+ Nd2 c2 Bh3 Bg2 Re1 h1N Rf1 Rg7 Bc3 Bb2 Nc4 c1N Na5 Na2 Nc6 Nc7 Bd2 Ng3 Bc1 Nf6 Ke5 Nb4 Rg4 Bg5 Rf4 Qg8 Rf3 Be3 Bg4 Rb8 Bh3 Na8 Bg4 Ke8 d7+ Kf7 d8B Be6 d6 Bb3 Ba5 Re8 d7 Bc3 Nh4 Ngf5 d8R Ba1 Rd5 Bb2 Rc5 Ba1 Rc3 Bb2 Bh3 Ba1 Rd3 Ng4+ Ke4 Ke6 Bb6 Kd6 Bc7+ Kc5 Be5 Kb6 Bf6 Bc3 Ng6 Bcd2 Nh8 Bc3 Nf7 Ba1 Nb8 Ka5 Nd6 Ka4 Nc6 Ne6 Bh4 Bad4 Bg5 Bb6 Bf6 Ne5 Bg4 Ned4 Bh3 Nh4 Be6 Nhf5 Bd7 Ng4
1n1RN1NN/2P2r1r/2Bb2rP/4k3/r4q2/p4nn1/PbK1p1b1/B2nRB2 w - - 0 1 legal: proof: c4 c5 g4 h5 e4 f5 f4 fxe4 b4 g5 Qf3 gxf4 bxc5 d5 g5 dxc4 Qg4 hxg4 Kd1 Kd7 d4 Ke6 h4 a5 g6 b5 c6 g3 g7 e3 c7 e2+ Kd2 e1N h5 c3+ Kd1 c2+ Kd2 a4 d5+ Ke5 d6 b4 h6 g2 d7 a3 Rh3 f3 Be2 b3 Bd1 f2 Ne2 f1R Rg3 g1R Rc3 b2 Ng3 Rh7 Nf5 Nf6 g8B Ra4 Bc4 Rg6 Nd6 Nh5 Rd3 Rff7 Bf3 Bb7 Bc6 Ng3 Ne8 Nf3+ Kc3 e6 Nd2 Qf6 d8N Bd6 Ne4 Qf4 N4f6 b1N+ Kb3 Nc3 Ng8 Ba8 Bb2 c1B Kc2 Bb7 Rd4 Nd1 Bf1 Ba8 Bc3 Bb2 Rb1 Kf5 Rc1 e5 Ra1 e4 Rd2 Rff6 Nf7 e3 Nh8 e2 Be5 Rff7 Bd4 Nc3 Re1 Nd1 Bc3 Bc1 Ba1 Bb2 Rd4 Ke5 Rd2 Bb7 Rd3 Bc8 Rd2 Bh3 Rd4 Bg2 Rd3 Bf8 Rd8 Bd6
n2BR2B/R1N3b1/1rb4q/n3P3/3K4/1Pr1prpB/b3rRP1/2Nb2qk w - - 0 1 legal: proof: d4 e5 a4 c5 h4 cxd4 e4 Qxh4 Qg4 b5 Qf4 Qh2 Qe3 dxe3 f4 exf4 axb5 Ke7 Bc4 Kd8 Bf1 Ke8 Ke2 Ke7 Kd3 Kf6 c4 Ke5 b6 f5 b7 g5 c5 d5 c6 a5 c7 h5 Be2 d4 Nh3 f3 Na3 f2 Ng1 Kf4 e5 Kg3 Bd1 f1B+ Be2 a4 Nb1 f4 Nd2 g4 Nb3 h4 Rb1 h3 Nc5 a3 Ra1 a2 Na6 f3 Nb4 f2 Nc2 Na6 b8B Be6 c8R Ne7 Re8 Rh6 Bc7 Bg7 Rb1 a1Q Nf3 Nc6 Nfe1 Ba2 b3 Na5 Rb2 Rb6 Nf3 Rc8 Bd6 Nc7 Be7 Na8 Nce1 Rc3+ Ke4 d3 Ng5 d2 Bd8 d1B Nd3 Qg1 Ne6 h2 Kd4 Qb1 Nc7 Qc2 Nf4 Qh7 Nd3 Qh6 Bf3 Bfe2 Bc6 f1R Bd7 Bf3 Rf2 Bd5 Ba3 Bc6 Bae7 Re1 Nc1 Rf1 Rff8 Rf3 Bf6 Kf2 Bf5 g3 Bh3 Qe1 Rg1 h1R Bde7 Nb7 Rg8 Bc2 Rc8 Bf8 Rg7 Bd1 Re8 Na5 Bd8 Qf1 Rd7 Qe1 Bh8 Bg7 Nd5 Qe2 Re1 Qf1 Rde7 Kg1 Re2 Kh2 Rd2 Qf2 Rd7 Re1 Ra7 Kh1 Nc7 Qg1 Rf2 Re2
b5r1/N1q1p1R1/pKbk1n1P/1B1P4/P1p4n/1R1B3N/1rBq2b1/1qn1R3 w - - 0 1 legal: proof: g4 b5 e4 d5 c4 bxc4 g5 dxe4 g6 Bg4 Qf3 Kd7 Qf6 Ke8 f4 Bc8 Bh3 gxf6 Bf1 Bh6 g7 Bg5 fxg5 h6 b3 Qd3 g6 Bh3 Bb2 Bg4 Bd4 Bc8 Be3 Qd8 Bg5 hxg5 Kf2 c3 Ke3 Kd7 Kd4 c5+ Kc4 f5 Kb5 c4 d4 a6+ Kc5 f4 a4 f5 h4 f3 h5 e3 h6 c2 b4 g4 b5 g3 b6 g2 b7 f2 Ra3 f4 Rh5 e2 Rc3 e1Q Bd3 f1B Rg5 f3 Na3 f2 Be2 Nf6 g8B Qd2 g7 Nc6 b8R Qc7 Nh3 g1Q Bh7 Rg8 Nb5 Bg2 Na7 Bb7 Re3 Qb1 d5 c1N Bc2 Ne5+ Nc6 Ng6 Bed3 Nh4 Re1 Ra7 Rg6 Ba8 Rb2 Re8 g8B Rb7 Bf7 Rg8 Rg7 Rb6 Ra2 Rb2 Ra3 Qh2 Na7 Qc7+ Kd4 Kd6 Rb3 Qa1 Be8 Qb1 Nf4 Bh3 Bb5 Bd7 Nh3 f1B Rg3 Bdc6 Rg7 Kd7 Kc5 Bg2 Bf1 Qc8 Kb6 Kd6 Bfd3 Qc7+
NR4br/1p1P2n1/2Pq1pq1/1bRn4/k7/r4PNp/3NKBB1/rnB4r w - - 0 1 legal: proof: d4 d5 b4 c5 e3 cxd4 b5 d3 b6 d2+ Ke2 d4 Kd3 axb6 Ke2 b5 Ba3 b4 Bb2 Ra4 Bc1 Ra8 g4 h5 h4 hxg4 Kd3 e6 Qf3 Bc5 Qh3 gxh3 Ke4 d3 Kf4 Bd4 exd4 Rh7 Ke3 Rh8 c4 Kd7 a4 Kc6 c5 d1R h5 g5 h6 d2 h7 b3 f3 f6 a5 g4 a6 g3 a7 g2 Ra3 b2 Ra5 e5 Ke2 e4 Nc3 b1N Rh2 e3 Ra3 Na6 Ra2 Nb4 Rc2 Qd6 Ne4 Kb5 d5 Ka4 c6 Nh6 Rc5 Be6 Rh1 Rad8 a8N Nf5 Rh2 Ng7 Rh1 Qe7 d6 Bg8 d7 Qd6 Re5 Rf8 Re8 Nd5 Rb8 Rd8 Kd3 Rc8 Ne2 g1Q N2g3 e2 Bg2 e1R Rh2 Rf1 Ke2 Re8 Ba3 Rc1 Bc5 Re6 Bf2 d1B+ Kd3 Bb3 Nd2 Ree1 Rh1 Red1 Ke2 Rc3 Rh2 Rd3 Rh1 Bc4 Rh2 Bb5 Rh1 Be6 Rh2 Rd8 h8B Bg8 Rh1 Na3 Rh2 Ra1 Rh1 Nb1 Rh2 Ne8 Bg7 Rd1 Bh6 Ng7 Nh5 Bh7 Ng3 Rh8 Nb3 Rf1 Bc1 Bg8 Nd2 Rd1 Ba7 Qgc5 Rh1 Qc2 Bf2 Rf1 Rh2 Rh1 Bg1 Ne7 Kf2 Rh6 Bf1 Qc4 Nb3 Rd4 Ke3 Rh5 Rc2 Rh8 Bg2 Qf7 Rc5 Qg6 Nd2 Rd3+ Ke2 Nd5 Bf2 Rda3+
1n1N2BB/1Pb5/1b1r2B1/1K2N2q/pR1r2Pp/Np2nP1k/n3n3/2b1R1b1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 e5 gxh4 e6 fxe6 Ra3 e5 Ra1 e4 c4 Bg7 b5 Bb2 Qb3 Bb7 Qb4 cxb4 d3 Bd5 c5 Bc4 dxc4 Bg7 Nd2 Bh6 Nb1 Bf8 Kd2 Kf7 g4 Kg6 c6 Kg5 c7 h5 c8N a5 b6 d5 f3 e5 c5 d4 c6 a3 b7 b3 c7 e3+ Kd3 a4 Kc4 d3 Bg2 d2 Ne2 d1N Bb2 a2 Re1 h3 Rg1 Kh4 Nbc3 h2 Nb5 h1N Bh3 e4 Nb6 Qe8 c8B Nh6 Bc3 Ra6 Nc7 Ba3 Nbd5 Rd6 Ng3 e2 Nb6 e1B Ncd5 e3 Nf6 e2 Bg2 Bf2 Bf5 e1B Nge4 Bc1 Bg6 Nf5 Bf1 Nhg3 Nc5 Ne2 Nfd7 Nfe3+ Kb5 Bed2 Bb2 Ba5 Nc4 Bc7 Ne6 Rh7 Rg2 Bg1 Bh8 Kh3 Na3 h4 Nd8 Re7 Rb1 Re4 Ra1 Qf7 Ne5 Red4 Rb1 Qh7 Ra1 Qh5 Rb1 Nf4 Bc4 a1B Rd2 Ne2 Bg8 Bc3 Rc2 B3a5 Rc4 Bab6 Ra1 Nc2 Rb1 Nb4 Ra1 Na2 Rb4 Ne3 Rb1 Bd2 Re1 Bc1
6NK/qR1N2bP/R1b5/pr2Pk2/1B3n2/1Bb1p2p/r1bpNP2/Bnb5 w - - 0 1 illegal: No proof kernel
8/NR2NrpP/b1rqB3/r1P1p3/r2brp1R/2p1n1Pq/K4RN1/6Bk w - - 0 1 illegal: No possible last move, all moves rejected
rq2BB2/R1n5/Nb1P1p1N/q2bkP1P/7n/r4rR1/rn2KR1b/4r1Bn w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 dxc4 g5 e5 g6 hxg6 d5 g5 Qd2 g4 Qd4 exd4 f4 Ke7 h4 Kd6 e4 g5 b4 a5 h5 c5 b5 c3 b6 c2 f5 d3 b7 d2+ Kf2 d1N+ Ke2 a3 Be3 c1R Ke1 f6 Rh3 a4 Rh1 g3 Nc3 g4 Bf2 a2 Bd3 a3 Nb1 g2 Rh4 g3 Bb5 c4 Ba4 c3 Bb6 c2 Ne2 g1B Nbc3 g2 Rh2 Nb2+ Nd1 Na6 b8B+ Nc7 Be3 Ne7 Rh4 Ke5 Rh1 Bb7 Be8 Ng6 Nd4 Nh4 Rh2 Bc5 Nb3 Bb6 Ke2 Rg8 d6 Bd5 Ba7 Rg3 Nf2 Qb8 Bh6 Rf1 Nc5 c1R Bf8 Rb1 Rh3 Bh2 Na6 Rf3 Rg3 g1N+ Kd2 Rbe1 Ng4+ Kf4 e5 Ne2 e6 R1f2 Nh6 Ke5 e7 Rg2 Rc1 a1R Rc4 a2 Rf4 Rb3 Rf2 Rf3 Rg8 Ng3 Rg5 Nh1 Rg3 Rec1 Ke2 Rcc3 Bb5 Ra3 e8R+ Be6 Rd8 Bd5 Rd7 Rf1 Rh7 a1Q Be8 Qc1 Rg6 Qc3 Rg3 Rfa1 Rhg7 Rgg1 Rf7 R1a2 Rd7 Ba5 Bc5 Bb6 Rf7 Qa5 Rfg7 Nb5 Ra7 Nc7 Rfg2 Rc1 Bg1 Rca1 Rf2 Re1#
Brn3n1/BP1p4/1nn3br/k2P2q1/1R1q2bb/K2P1N2/3r1B2/NbR1n1N1 w - - 0 1 illegal: Other
2R2r1k/Pn1PqqrB/rb1nB1bq/qp1q4/6b1/B3R1K1/RPr5/1N2N3 w - - 0 1 illegal: No proof kernel
5N2/1bqN1rBK/4bR2/1Pnq1P2/4p1Bb/q1Bn3r/bn2P2k/2rr1RN1 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Bh6 h4 Bc1 fxg6 Qd3 g5 Qf3 g4 Qg3 hxg3 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 a5 b4 d3 c4 e5+ Ke3 Kg5 f4+ Kh4 b5 g5 c5 a3 f5 d4+ Ke4 a2 h3 d2 c6 d1B c7 d3 Bd2 a4 Ba5 d2 Bb6 a3 Nc3 g2 Nb1 Kg3 h4 Nd7 h5 Bb7+ Ke3 e4 c8N Bb3 h6 d1B h7 Nh6 Nd2 Ra7 Ndf3 Nf7 Rb1 a1R Ba5 a2 Rh6 Nd6 Rf6 Nc5 Kd4 Be6 Ke5 Qc7 Nb6 Bdb3 Rb2 Rc1 Nd4 a1Q Na4 Ba2 Bb6 Kh2 Nc6 g3 Rg6 g4 Kf6 Nc4 Nh3 g1Q Ba5 g2 Bc3 g3 Nd8 Be7+ Kg7 Qd4+ Rf6 g1N Nb6 g2 Rb1 Qd5 Nd7 Nf3 Ng1 Nb2 Kg6 Ne5+ Kh6 Re8 h8B Ned3 Bg7 Rh8+ Kg6 Rd1 Rc1 Rh3 Rb1 Bg8 Ne6 Rc1 Nef8 Be6 Rf7 Bh4 Kh7 Rd1 Rf6 Rg3 Nh3 g1R Bg2 Rc1 Bf3 Rgd1 Ng1 Rh3 Bg4 Bc4 Be1 Qa3 Bc3 Ba2 Ra1 Ra8 Ng6 Rf8 Rb1 Rf7 Ngf8 Rc2 Ra1 Rdd2 Re1 Rd1 Rf1 Rcc1
bRq3q1/3q1B2/p2R1r1P/q5P1/3r1bkB/p1nRr1BN/PN2bq2/n3K3 w - - 0 1 illegal: No proof kernel
3RN2q/1p1K1R1q/bpq1Pb2/1r3r2/1b1b3R/rnPnB1kN/BP4B1/6b1 w - - 0 1 illegal: No proof kernel
2B2nrb/1R2p3/PqqP2n1/1N2P3/1b2b1pB/rq2N1nr/1K1k1B1N/1R1b4 w - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Nc3 h4 Qb3 dxc6 Qa3 c5 Nb1 c4 Qg3 hxg3 Kd1 Kd7 Kc2 Kd6 d4 Kd5 f4 Ke4 a4 g5 h4 b5 e3 c5 d5 c3 f5 c4 f6 g2 a5 b3+ Kd1 b4 h5 b2 Kc2 g3 h6 b3+ Kd1 c2+ Kd2 c3+ Ke1 Nd7 d6 Bg7 f7 Qb6 f8B Ngf6 h7 Ne5 Rh5 Bg4 Rh6 Ng6 Na3 b1B Rh1 b2 Nb5 Bd1 Nf3 g1R Nh2 g2 a6 Nd7 Bd2 c1B Ra3 c2 Rb3 Bf6 Bg7 Rag8 Rb4+ Bd4 Bf6 Ndf8 Rb3 Be5 Bc3 Qc6 Bd4 g4 Bh4 Ba2 Bb6 b1Q Bc5 Ba3 Kd2 c1N Bc4 Bf6 Be6 Ne2 Bc8 Ng3 Rb2 Qd3+ Kc1 Bb4 Rb3 Qdd5 Rb2 Kd3 e4 Qb3 e5 Re1 Rb1 g1Q Rb2 Qb6 Bf2 Qg2 Rg1 Re3 Rb1 Qc4+ Kb2 Kd2 Re1 Ra3 Re3 Rg7 Rb3 Rhg8 h8N Rh7 Nf7 Qgc6 Nh6 Bh8 Nf5 Rh5 Bf6 Rh3 Bh4 Qe6 Ne3 Qf7 Rc3 Bd5 Rc5 Be4 Rcc1 Qce8 Rc7 Qec6 Rb7 Qb3#
R2b2N1/pnP2q1N/4Brp1/1q3rRr/2PB2r1/P2N4/1B1n1rb1/1kr1r1K1 w - - 0 1 illegal: Other
2b5/n2r1P2/p1n1qNP1/Pn5R/1k2NB1n/p2b2Kn/2BbRB1b/1b2rN2 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 g5 e5 gxh4 a5 f6 Qd3 fxe5 Qc4 e4 Qa4 bxa4 g4 h5 c4 d5 f4 Kd7 Kf2 Kd6 b4 e5 f5 e3+ Kf3 a3 b5 Kc5 f6 a6 f7 h3 g5 e4+ Kg3 d3 g6 e2 b6 e1N b7 d2 Kh2 d1B Be3+ d4 Nd2 h4 Ndf3 Qd7 Bd3 Kb4 c5 Ne7 c6 Be2 c7 Qe6 Bf4 e3 Nd2 Nec6 Nb3 Bc5 Rb1 Ng2 Bb5 d3 Rf1 d2 Rf2 d1N Bg5 Ra7 Bc4 Bd3 Rf4 e2 Re4 e1B Rg4 Bd2 Bf4 Nc3 Ne2 Nb5 Ng3 Re8 Ne4 Bb1 Re1 Bb6 Rg5 Bg1+ Kh1 h2 Re2 Re7 Rh5 Rd7 Be3 Ra8 Bf4 Nca7 Nf6 Nbc6 b8B Ne1 Be3 Nf3 Kg2 h1N Bd3 Nf2 Bc2 h3+ Kg3 h2 Bb6 h1B Be3 Nh3 Bf2 Bh6 Nd2 Nh4 Nf1 Bd2 Be3 Be4 Bf2 Bb7 c8N Bd3 Nd6 Bc8 Bc7 Rb8 Nde4 Rb7 Rh8 Re7 Bf4 Rbd7 Rh5 Qa2 Re1 Re5 Nd6 Re2 Nde4 Qe6 Bd4 Rf2 Re3 Re2 Bb6 Re1 Re2 Rd8 Bd4 Rd7 Bf2 Bh2+
B2b3r/1P2p1Bb/3RK1n1/1q1pNNq1/P1R1B1rr/3Pq3/1R1rrkr1/2n5 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 c5 fxe4 Qb3 b6 b5 bxc5 Qb2 c4 Qb4 axb4 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 a4 h5 f4 Kg3 f5 c5 d3 c3 f6 c4 b6 e3 f7 c2 Nf3 b3 Nd4 e2 Be3 c1Q Bg1 e1R Nc6 b2 Rh2 h3 Rh1 c3 Bc5 c2 Nc3 b1Q Bb4 h2 Na5 h4 Rg1 h1R Bd6+ Kf2 g4 h3 g5 h2 g6 Qe3 g7 c1R Be5 Na6 Rg4 Nh6 g8B Rc2 Bg2 Ree2 Be4 Nf5 Rg5 Nc5 Bf3 Bh6 f8R Nb3 Bd6 Rg1 Rg6 h1R Ra2 Rg2 Nc4 Nh4 Be4+ Bf4 Rb2 Rcd2 Ne5 Nc1 Nb5 Rg4 Rgf6 Ng6 Nd4 R1h4 Nf5 Qe8 Bb4 d6 Bc5 Qb5 Bf7 Bb7+ Ke6 d5 Be8 Bc8+ Bd7 Qc2 Bd4 Qcc5 R8f7 Bh2 Bc3 Qg5 Rg7 Rg2 Rh7 Rhg4 Rh4 Qce3 Bd4 Bb7 Bc6 Bc8+ Kf7 Rh5 Rd6 Bd7 Bc3 Rah8 Ba8 Bf4 b7 Be6+ Kg7 Bg8 Bd4 Bh7 Kf7 Bh2 Ke6 Bf4 Rh1 Rhh4 Bc3 Nb3 Rc1 Bh2 Bd4 Bg1 Rc4 Nc1 Nd7 Bh2 Bf6 Be5 Bg7 Bc3 Ne5 Ba5 Rbb4 Bc7 Rb2 Bd8
N1qrR2B/n2b3B/kP2r1p1/2b2P2/1n2R1P1/1N1q3B/pK2N1q1/2n1b1nq w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 e5 h5 e6 h4 Qe2 fxe6 Qd2 e5 Qe3 e4 Qg3 hxg3 Kd1 e5 b4 a5 c4 d5 Kc2 Kd7 f4 Kc7 h4 Kb7 h5 e3 f5 e2 h6 e1N+ Kb2 a3+ Kb3 g2 b5 d3 c5 e4 h7 a2 b6 d2 Ba3 d1Q+ Kc3 e3 Bb2 d4+ Kc4 e2 c6+ Ka6 c7 g6 Nc3 a4 Ne4 d3 Kc3 d2 Nf3 g1N Rh4 a3 Bh3 Ne7 Nd4 Nbc6 Nb3 Bd7 Ng3 Qc8 Rh5 Rg8 h8N Nb4 Nf7 Nec6 Nd6 Na7 Rh8 Ned3 Nb5 e1B Ne2 Bc5 Rb1 Rg7 Re8 a1Q Rc1 a2 Rb1 Qb7 c8B Re7 Rc1 Re3 Rc2 Qac1 Re4 Bc6 Be6 Bd7 Bg8 Rd8 Bh7 Qc8 Re8 Re6 Ba1 Qa8 Bb2 Qg2 Nc7+ Kb7 Na8 Ka6 Ng3 Qdf3 Ne2 Qc6 Ba1 Qc8 Bb2 Qd1 Ba1 Nc1 Kb2 Ba4 Rc4 Bd7 Re4 Qc2+ Ka3 d1Q Bh8 Qc4 Kb2 Qdd5 Re5 Qcd3 Re3 Qdf3 Re5 Qh1 Re4 Qfg2
3q4/2nq1bN1/3bp1r1/Kp4rq/PR1N1krq/1Pn5/R1B2B1P/1R2nNn1 w - - 0 1 legal: proof: g4 c5 e4 h5 d4 hxg4 b3 cxd4 e5 a5 e6 a4 Ke2 a3 Ke1 fxe6 Qd3 e5 Qc3 e4 Qb2 axb2 Kd2 Kf7 c4 Kf6 f4 Kf5 a4 b5 c5 d5 c6 g5 c7 e3+ Kc2 g3 Na3 b1Q+ Kd1 g4 Bg2 d3 Nh3 e2+ Kd2 e1N Kc3 d4+ Kb4 d2 Ra2 d1Q Bc6 g2 Bf3 g1R Nc2 d3 Ra1 g3 Bc6 d2 Ng5 g2 Ne6 Qh5 Bd5 d1Q Be3 Ra6 Ra2 Nf6 Bf2 Rg8 Ng7+ Kg4 f5 Kf4 Bf7 Q1d7 Bg6 Ne4 f6 Nc3 f7 Re6 Nd4 Qe4 Ka5 Na6 Nc2 Bb7 Ne3 Bd5 Nf1 Qd4 Bd3 Rg6 Bc2 Qf6 Ng3 Qfh4 Nf1 Q8e8 c8N Nc7 Na7 Qed8 Nc6 Rg4 Nd4 Bc4 Ne8 R8g5 Ng7 e6 Bd1 Bd6 Bc2 Bd3 f8R+ Bf5 Rh8 Bg6 Rf8+ Ke5 Rf4 Bf7 Ne2 Rg6 Rb4 R6g5 Nd4 Kf4 Nd2 Rf1 Ngf5 g1N Ng7 Ngf3 Rg1 Rg6 Rh1 Rfg1 Nf1 R1g3 Rg1 R4g5 Rh1 R3g4 Ne3 Nd3 Rb1 Nde1 Nf1 Ng1
4B1b1/2BN3P/1bp1n2P/1rPrR3/kr1r1q1K/3N1rRp/4Br2/2n1rR1r w - - 0 1 illegal: Other
1Brr2b1/2p2R2/2PNB2q/N2bPbNP/3K2pk/n1n1b3/1p2r1nb/2R3B1 w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nh3 h4 Ng1 fxg6 Qd2 g5 Qd3 g4 Qg3 hxg3 Kd2 Ke7 Kd3 Kf6 a4 b5 e4 d5 Be2 g5 f4 g2 h4 g3 c4 b3 f5 g4 h5 b4 a5 Qd6 c5 Be6 c6 Na6 Ra2 Ne7 Rh2 Ng6 Rd2 Kg5 e5 Rc8 f6 Nh4 f7 Bh6 Nc3 Rhd8 f8B Bg8 Bf1 Qf6 Nge2 g1R Nb5 b2 Nbc3 b1B+ Rc2+ Qf4 Rf2 g2 Na4 b3 Be3 b2 Nc5 Nb4+ Kd2 d3 Kc3 d2 a6 d1B a7 Ba2 Rc1 Nc2 a8N Na3 Nd4 Bc2 Bc4 Re1 Ndb3 g1B Nb6 Ng2 Ne6+ Kh4 Bfc5 Bh2 Na5 Re2 Rff1 Qf6 Bg1 Be3 Ng5 Qh6 Rf7 Bd3 Bb3 Bf5 Nbc4 d4+ Kb4 d3 Kc3 d2 Nd6 Be4 Be6 Bf5 Ba7 Bd5 Bb8 d1N+ Kb4 Bef4 Kc5 Nc3 Kd4 Be3+
1r1B4/NnpK1n2/b1pBP3/1pP1N1B1/b4R2/1P1rbR1r/k2q1n1R/r1r5 w - - 1 2 legal: proof: f4 e5 g4 exf4 c3 a5 g5 a4 b3 a3 Qc2 h6 Qb2 hxg5 Bh3 axb2 Bg2 g4 Bc6 dxc6 Kf2 Kd7 a4 Kd6 h4 Kc5 e4 f5 d3 g5 c4 Kb4 h5 f3 Ke3 g3 d4 f2 e5 f1B d5 g4 Kf4 g2 a5 g3 e6 Nd7 h6 Bc5 a6 Be3+ Kf3 f4 Kg4 f3 Kf5 f2 h7 Nc5 d6 Rb8 Nc3 b1R Nf3 g1N a7 g2 a8R Nh3 d7 g1R Nb5 Rg3 Na7 Nh6+ Ke5 b6 Rh2 Nb7 c5 Bb5 Ra4+ Kc3 Rg4 f1R Rf4 Nf7+ Kf5 Rfg1 Ne5 Ba4 Bd2+ Kb2 Rf3 Qe7 d8B Qd6 Kf6 b5 Rf4 Qd4 Ke7 Nf2 Rf3 Rh3 Rf4 Rhg8 h8B Rgc1 Bg7 Ka2 Bf8 Rg6 Ke8 Qc3 Bd6 Ra1 Rf3 Rgg3 Ke7 Bh6 Bg5 Qd2 Rf4 Na5 Rf3 Ba6 Kd7 Nb7 Bde7 Rh8 Rf8 Rg8 Rf4 Rd3 Bd8 Rh8 Bgf6 Bg5 Rf3 Be3 Bg5 Nh6 R8f4 Nf7 Bdf6 Rc8 Bd8 Rb8
b1n1rbB1/b1B1R3/4B1Rq/npkN2P1/P4n2/r1q2p1n/1pKnNP2/4N3 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 h4 axb4 h5 e5 h6 gxh6 d5 h5 Qd3 h4 Qd4 exd4 a4 Ke7 Kd1 Kd6 e4 b5 g4 f5 g5 c5 Ne2 h5 Rg1 c3 Bh3 c4 Nd2 d3 Rh1 c2+ Ke1 b3 e5+ Kc5 e6 f4 e7 c3 e8B b2 d6 Qa5 d7 Bb7 d8N Nc6 Bg6 Nge7 Bg4 h3 Nf3 h4 Ra2 d2+ Kf1 h2 Bc8 d1N Ke1 h3 Ra3 Kb6 Be4 Ne3 Bd7 Nf1 Ne6 Re8 Bg6 Nc8 Nh4 Ba8 Bd2 c1N Kd1 Nd3 Ng3 c2+ Ke2 c1B Be1 Be3 Bc3 Nd2 Kd1 f3 Re1 h1N Bf7 h2 Nc7 Rh7 Bd5 Rhe7 Ng2 Bc5 Bf7 Re3 Be5 Qb4 Bf4 Na5 Kc2 Bd4 Rc3 Qc4 Nh5 Ng3 Bg8 Ne2 Ng3 h1Q Bd6 Ng1 Nd5+ Kb7 Bg4 Kc6 Bc7 Nf4 Bf5 Rd3 Re7 Qh6 Ne2 Ngh3 Ne1 Ba7 Bg4 Qc5 Rc4 Ra3 Rc3 Ndc4 Rce3 Qd4 R3e6+ Kc5 Rg6 Nd2 B4e6 Qc3+
2N5/1n3B1r/p3B1b1/P2Pb1p1/KNqr1q2/N1bp2nb/RPb5/B3kqR1 w - - 0 1 illegal: Other
Rr3b2/3N2k1/3B2qN/1B1P1b1p/p2p1bnr/3rP2B/P2rn1Kq/4rNR1 w - - 0 1 illegal: No possible last move
3nBR2/1R3bb1/1bqprqNn/2N3p1/5BP1/2rN1p2/n1qbP2P/3kBK2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 f5 cxd4 f6 h4 Qd2 exf6 Qd1 f5 Qd3 f4 Qg3 hxg3 b4 Ke7 c4 Ke6 c5 Ke5 b5 Ke4 c6 g5 c7 a5 b6 f5 b7 d6 Nh3 d3 Bd2 a3 Ng1 f3 Nh3 a4 Bc1 g2 Rg1 f4 Ra2 d2+ Kf2 d1N+ Ke1 f2+ Kd2 Nc3 Rh1 g1B Rc2 a2 Na3 a1B Ra2 Rh6 Rb2 Re6 Rb5 Nh6 Nb1 a3 Bb2 a2 Bc1 Nc6 b8B Qf6 Rb7 Bg7 Ba7 Nd8 Bd4 Bd7 c8N Ra3 Ne7 Be8 Ng6 Bf7 Bb6 Bb2 Ba5 a1Q Bg2+ Kd4 Be4 f1Q Nf2 Qg2 Ke1 Na2 Bc6 Rc3 Be8 Qc6 Nd2 Ke3 Kf1 Qb1 Nd3 Qc2 Bb4 Bf2 Rg1 Be1 Ne4+ Bd2 Nec5 Ba3 Rg3+ f3 Rh3 Nf5 Rh8 Nh6 Rf8 Bb2 Nd7 Ba3 Ba5 Bc5 Bb4 Bb6 N7c5 Ra3 Bb2 Rb3 Be5 Rc3 Ba5 Be1 Bg3 Kd2 Bf4+ Kd1 Bb4 Bd2 Ba5 Be3 Bb4 Rb3 Bd2 Rc3 Be1 Bd2
3b1RqK/pp1prB2/b7/R4N2/8/P1b1rNB1/Pr3qPN/Bknq1b1n w - - 0 1 illegal: Other
N3RKb1/1Nr1r1b1/2b3PR/rb3B1r/q2nb1pn/Np2p2R/1PB1k1P1/8 w - - 1 2 illegal: Other
1rr1N1nB/5qN1/k2pr1nN/BbR5/r1p4b/1RnPnrp1/3P1P2/6KB w - - 0 1 illegal: Other
3b1b2/2q1prRq/N2bP3/N1p3PB/2np1Nr1/1rRP2K1/k1rB3R/2n4b w - - 0 2 legal: proof: f4 g5 b4 gxf4 c4 h5 g4 a6 b5 axb5 g5 bxc4 Qb3 c3 Qe6 Na6 Qf5 Nb8 Qg4 hxg4 Kf2 b5 a4 f5 e4 Kf7 h4 Ke6 e5 Kd5 h5 f3 a5 b4 e6 c2 a6 g3+ Ke1 f2+ Ke2 Kc4 Kf3+ Kb3 d3 d5 h6 g2 h7 f4 a7 Nd7 Nh3 g1B Bg2 f1Q+ Kg4 f3 Rh2 f2 Kg3 Nb6 Bb2 c1B Ra4 Bb7 Bh1 Bf4+ Kh4 Nf6 Bc3 Bd6 Ra6 Nfd7 Ra1 Rc8 a8N Nc4 Bg2 Nc5 Ra2 d4 Rh1 Bgh2 Kg4 c6 Ra5 Qc7 Rb5 Ka2 Bf3 b3 Rb6 b2 Nf4 Nb3 Na3 b1R Bd2 Nc1 Rb3 Qe1 Rf1 Qe4 Rc3 Rb3 Kh3 Qg6 Bh5 Qh6 Rh1 f1R Kg2 Bg3 Rh2 Be1 Kh3 Rf2 Kh4 c5 Kg3 Bh1 Nb5 Rb8 Na7 Rb2 Nc6 Rc2 Na5 Rb3 Bg4 Rg8 h8R Qh7 Bf3 Rg7 Rg8 Rf7 Bh5 Rf3+ Kg4 Rh3 Rg7 Bg3 Ne2 Bge5 Nf4 Rh4+ Kg3 Qd8 Re2 Bc7 Rg2 Bed6 Rh2 Bb6 Nc7 Qc8 Nd5 Bd8 Nc7 Qd7 Na6 Qc6 Be1 Qc7 Bd2 Rg4+
4RR2/qbK2pn1/3pNn2/Pr1P1kB1/8/2p1rBB1/2qN2Pq/q3Nrbr w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 f5 bxc4 b5 e6 Qa4 exf5 Qb3 f4 Qb4 axb4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 a4 c5 d4 f3 b6 h3 a5 h4 e3 c3 b7 c4 Ne2 f2 Bd2 b3 Rh2 b2 Rh1 h2 Kf4 h3 e4 c2 e5 c1Q Ng3 c3 Ne4 Nh6 Be2 f1R+ Bf3 Qe7 Nf2 Qc2 Ra4 Nf5 Nd3 Ng7 Ne1 Rh5 Be3 Qc5 Nd2 b1Q Rc4 Qa7 Rc6+ Ke7 e6 Rb5 d5 Kf6 Rd6 Kg6 Ke5 Qa1 Bg5 Be7 Ra6 Bc5 e7+ Bb6 Kd6 Kf5 Rg1 h1R e8N h2 Nc7 Bd4 Ne6 Bc5+ Kc7 d6 Rc6 Nd7 Rb6 Qa6 b8B Bb7 Ba7 Nf6 Rc6 Be3 Bd4 Rg8 Be5 Re8 Bg3 Qa7 Ra6 Qd4 Ra8 Qa7 Nf8 Re4 Ne6 Bf2 Rf8 Re3 Nd3 Rd1 Rf1 Bg1 Re1 Rdb1 Re2 Rf1 Ne1 Rd3 Re4 Re3 Rh8 Bf2 Rf8 Rhg1 Nc5 h1Q Re7 Qh2 Ree8 Rh1 Ne6 Bg1
rbNB3n/R1Pp1n2/2K3B1/1NR2pR1/n2PP3/1rq1bpp1/3N1k2/rr3b2 w - - 0 1 illegal: Other
3r1qB1/2bR1N2/1n3kpB/1N1Rpp2/4RP2/1nP1P2q/1b1bbpNK/2r3r1 w - - 0 2 legal: proof: f4 c5 d4 cxd4 a4 b5 g4 bxa4 Qd3 h5 Qc3 hxg4 Qf3 gxf3 Kf2 e5 Kg3 Ke7 b4 f5 h4 d5 h5 a5 h6 a3 b5 a4 h7 g6 e3 a2 b6 d3 b7 d2 Rh4 d1R Bd3 a3 Bb5 f2 Bd3 d4 Kg2 Nc6 b8N Ba6 Kg3 Na5 Nc6+ Kf6 Rg4 Rc8 Nc3 Ne7 Bc4 d3 Kh2 d2 Nf3 Rg1 Rh4 d1Q Ne1 Qf3 Ng2 Nd5 Bd2 Qe7 Nd8 Nb6 Rh5 Rg8 h8R Nb3 R5h7 Bb5 Be6 Be2 Nb5 Rc3 Rc1 a1B Rg7 Rc8 Bb4 a2 Rd1 Rc7 Rd4 Bc3 Re4 a1B Bf7 Bd2 c3 Ra7 Rhh7 Bb2 Bc4 Qe8 Rc7 Raa1 Rc5 Rae1 Rd7 Bd6 Bd5 Rf8 Bg8 Rc1 Rd5 Bc7 Nf7 Qe7 Ba3 Rd8 Bd6 Qe8 Bf8 Qe7 Bh6 Qf8 Nbd6 Qg4 Nb5 Qh3+
RN6/N1nR1qb1/r4BkP/1nr1p3/2BP1p1B/4Pppr/1Kn1b3/1R2qr2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 d5 Qc2 dxc4 Qe4 g5 Qg2 gxf4 g5 Ba6 Qg3 Bc8 Qg4 hxg4 Kd1 c5 Kc2 f5 h4 Kf7 d4 e5 b4 a5 e3 g3 b5 f3 h5 f4 b6 a3 b7 a4 Bb2 c3 Bg2 a2 Bc1 a3 Bf1 c4 Ne2 Ne7 Nd2 Nf5 Ne4 Bg7 Nf6 Qe7 Rb1 a1Q Nd7 a2 Ba3 Na6 b8B Nd6 Bc7 Nb5 Bd8 Nac7 Nb8 Ra6 g6+ Kf6 Kc1 c2 Nc3 Bh3 Be2 Bf1 Bd3 Kg5 Bb4 Qf6 Bbe7 Be2 Rh2 Kh6 Rh4 Qf8 Bf6 Qf7 Rh1 Rh7 Bh4 Rh8 Bdf6 Rh7 Nd5 Qc3 Nb6 a1N Nc8 Qe1+ Kb2 c1R Na7 Nc2 Rh3 Qa5 Rh1 Rf1 Rh2 Qe1 Rh3 Bf8 g7 Rh8 g8R Bg7 Bf5 Rh7 Be6 Rh8 Rd8 Kh7 Rd7 c3+ Kb3 Nca3 Bd5 c2 Bc4 c1R Kb2 Nc2 Rh2 Rc8 h6 Kg6 Rg2 Rh1 Rg1 Rh3 Rh1 Qd2 Rd1 Qa5 Rd3 Rf1 Ra3 Qe1 Nac6 Rb6 Ra8 Ra6 Na7 Nd5 Rd6 Rc5 Rd7 Ndc7
2q3q1/1PRp1n1B/qBB2rb1/rn3N2/p1q1p3/1P1Pp3/Nb5K/1r3kNR w - - 0 1 illegal: Other
B3b3/1P2n2r/3B1r2/N1rkNN2/1pppq1RP/b1bPr3/1p1b4/Rn2B1K1 w - - 0 1 illegal: No proof kernel
Kb1n4/P1rp1R1n/5qr1/pPN5/Pbbr2bB/1rk3BR/p2p2R1/N2B4 w - - 0 1 illegal: Other
6br/Ppkp1b1p/8/K2rNRnn/1P5p/pR3nB1/P3qN1B/N1b2n1B w - - 0 2 illegal: Other
q2R4/2pnn1B1/r4RP1/KQ3q2/3rNrb1/PrP1B3/6RR/r2bk1q1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 e4 g6 f4 Ba3 g4 Na6 b4 axb4 g5 Bb2 e6 Nb8 Bh3 Ke7 Bf5 Bc3+ Nd2 Kd6 e5+ Kc6 e7 Bd4 Ne4 gxf5 e6 Be5 fxe5 h6 Nf6 h5 Ng4 hxg4 Kd2 Kc5 e8R Kd4 h4 d5 h5 b5 h6 g3 h7 g2 g6 b3 e7 f4 e6 f5 Rb1 b2 Rf8 f3 e8R f4 e7 f2 Qg4 f1Q Rh6 b4 Rf7 b3 Ra1 b1R Ref8 b2 e8Q Ne7 Nh3 g1Q Qg3 f3 Nf4 f2 c3+ Kc4 Qh4 d4 Qf6 d3 Ne6 Ra7 Ke3 d2 Rh2 d1B Nc5 Bh3 Qec6 Nd7 Kd2 Ra6 a3 Qa8 Ra2 Ra1 Rd8 b1R Qg5 Rf8 h8B Bhg4 Bg7 Rb5 Qb7 Rab6 Qe5 Rbb1 Qa6+ R1b5 Rf3 Rff6 Ke3 Rfd6 Ne4 Rd4 Rf6 Kb3 Re2 Rbb4 Bd2 Kc2 Qeb5 Rb3 Re1 Qc4 Re2 f1R+ Ref2 Qc5 Bc1+ Bde2 Bd2 Kd1 Bc1 Qh1 Rfg2 Qf5 Bd2 Rf4 Bc1 Rdb4 Bd2 Bef3 Kd3 Qg1 Bc1 Ke1 Be3 Rbb1 Kc2 Bd1+ Kd3 R4b2 Kd4 Rd2+ Kc4 Rdd6 Rb2 Rd5 Kb4 Rd3 Ka5 Rd4 Rbd2 Rb3 Rdg2 Rxa6+
3q1k2/1pP2bR1/P4Bn1/B1b2P2/1B1QKb2/n1r2rrr/2nNN2q/7B w - - 0 1 legal: proof: f4 a5 b4 axb4 d4 c5 g4 cxd4 a4 e5 Ra3 h5 gxh5 bxa3 e4 f5 exf5 exf4 Ke2 g5 Kd3 d5 c4 f3 h4 a2 c5 a1N c6 g4 h6 f2 h7 g3 h5 g2 h6 Ne7 c7 Nd7 a5 Ng6 a6 Bc5 Nh3 g1B Bf4 Nb6 Nc3 Be6 Ne4 Nc4 Bg3 Na3 Nf4 Bf7 Nd2 Kf8 Ne4 Bh2 Bh4 N1c2 Bg2 f1R Ne2 Bf4 Qd2 Rf3+ Qe3 Rc8 Be1 Qh4 Rg1 Qh2 Bh1 Rg8 Kd2 d3 h8B d4 h7 Ra8 Bf6 Rg7 Kd1 d2 h8B Rh7 Qd3 Rhh3 Rg3 Rd8 Rg4 Rd6 Rg2 Rc6 Qc3 Ne7 Rg7 Ng6 Rh7 Bb4 Be5 Rd3 Bhf6 Rdg3 Rg7 Be7 Bd6 Rc5 Ng1 Rc4 Bc5 Bed6 Bb6 Bc5 Ba5 Rf3 Qe3 Rfg3 Qf2 Rf3 Ke2 d1R Beb4 Rcc3 Bg2 Rfg3 Bf3 Rdd3 Bh1 Rde3+ Kd2 d3 Ne2 Rb3 Qg1 Ref3+ Qe3 Rb2 Kc3 d2 Kd3 d1Q+ Nd2 Bfd6 Ke4 Rb3 Nf1 Bf4 Qf2 Qd6 Nd2 Rbc3 Qd4 Qd8
1bQR4/kp1B2Kr/5r2/1b2P3/n1R2r1P/rR2bN2/1Pq2N1b/b3nR2 w - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 h5 gxh5 e5 a4 exf4 d4 c3 d5 Nc6 Be3 Nb4 Bb6 cxb6 a5 Na2 axb6 Qxb6 Bh3 Qf6 Bf1 Qd8 Kf2 Kd7 Kf3 Kc7 Ke4 Kb6 Ke5 a5 h4 g5 e4 f5 h6 g4 d6 f3 d7 g3 h7 g2 Rh2 c2 Nd2 c1B Ba6 a4 Qb3+ Nb4 Bb5 a3 Nb1 a2 Nd2 f2 Qd1 f1R Qg4 f4 Nb3 f3 Qg3 f2 Qd3 Ra3 Qd6+ Ka7 Nd2 Nf6 Ngf3 g1B Be2 Nfd5 Bd1 Nc3 Qc7 Na4 Rh3 Bh2+ Ke6 Qg5 Kf7 Nc2 d8R Qg2 e5 Bd7 Qc8 Bb5 Ne4 Bd6 Rg3 Bg5 Kg7 Ne1 Rc1 a1B Rc4 Be3 Rf8 Nc3 Ba4 Bb8 Rf7 Ba6 Bb5 Na4 Bd7 Bb5 Rf6 Re8 h8R Re7+ Kg6 Rh7 Rd8 Rh1 Rf7 f1R Kf6 Qc2 Nf2 Rh8 Kg7 Rhg1 Rg6 Rg4 Rf5 Rf4 Rb6 Bc6 Rb3 Bb5 Rg5 Rh6 Rg1 Rhf6 Ng4 Rf2 Rf1 Rd2 Nf2 Rdd6 Ng1 Rh6 Nf3 Rdf6 Rcb4 Rh8 Rc4 Rh7+
qRB1r3/PNR2K2/8/bq1npQ1b/bR4q1/4PN1P/1R2rqkb/2n5 w - - 0 1 illegal: No possible last move
4b3/3rr1p1/Nk4KP/qrbPB3/b1rR4/1Q6/3PRrN1/1Nq1r1rN w - - 0 1 legal: proof: b4 b5 c4 a5 a4 h5 g4 hxg4 f4 e5 Nf3 exf4 Ng1 Nf6 Bg2 Na6 Bb7 Nd5 Bc6 dxc6 cxd5 Nc5 Kf1 Nd7 Ke1 axb4 a5 Nb6 axb6 b3 Ra3 b4 Ra2 Rh3 Ra1 Rh8 Kf2 Kd7 h4 f5 e4 c5 b7 b2 e5 g3+ Kf3 b3 h5 c4 h6 c5 b8N+ Kc7 e6 c3 e7 g2 e8N+ Kb6 Qe2 c2 Ra3 c4 Qe1 c3 Nc7 Ra7 Qe3+ Bc5 Qe2 Bd7 Qe8 Ba4 Ne6 Re7 Ne2 g1R Qh5 Rf8 Qh4 Rff7 Qg4 Rd7 Qh5 Rfe7 Qg6 Re1 Kg2 f3+ Kg3 f4+ Kh4 f2 Kg5 f1R Ng1 f3 Rh2 f2 Ne2 Rg1+ Ng3 f1R Qd3 Rf2 Nf4 Qc7 Ng2 Qa7 Ra2 Qa5 Na3 b1B Nh1 b2 Na6 Rd6 Kh5 Be8+ Kg5 Rdd7 Ra1 Ba2 Nb1 Bb3 Rh4 Ba4 Rd4 Ref7 Kg6 Rde7 Na3 b1R Bb2 c1R Qh3 c2 Qb3+ Qb4 Bc3 Rb2 Nb1 Rd7 Qc4 Qa5 Ra3 Rb4 Bb2 Rb5 Re3 Red1 Qb3 Rfe7+ Kh7 Rdf1 Re2 Rce1 Ba1 c1Q Bb2 Rff7 Kg6 R1f4 Rde4 Rh4 Be5 Rhf4 Rd4 Re4 Rd3 Rc4 Rd4 Rf2+
kBr3b1/1R1Q4/1q2N1R1/2B4P/2P1pbP1/1b4r1/npnr3K/q2R1rR1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 b5 e5 f6 exf6 g6 a4 a5 axb5 axb4 f4 Kf7 Bd3 Ke6 f7 Kd6 f5 Kd5 f6 Kd6 Bf5 gxf5 g4 h5 Nc3 h4 Nce2 Bg7 Ng3 hxg3 Rb1 Bh6 Ra1 Bf8 Kf1 Kc7 Kg2 Kb7 c4 d5 h4 e5 h5 e4 b6 d3 Qd2 f4 Nf3 b3 Qe1 d2 Nh2 d1Q Kg1 f3 Ra2 b2 Bf4 d4 Bg5 d3 Bd2 g2 Ra4 Bd6 f8B Be6 f7 Nc6 Nf1 Nd4 Nh2 Nf6 Ra3 Rc8 Bf4 d2 Ra6 Qa1 Qd1 Nd5 Be7 Re8 f8R Bg8 Rf5 Bb8 Bc5 Nb4 Rd5 Na2 Rd7+ Bc7 Bfd6 Kb8 b7 Nc2 Rb6 Ka7 b8R Re6 Be5 Rd6 R8b7+ Ka8 Bg3 Rd4 Rg6 Bf4 Rdd6 Qb6 Rdd7 Bg5 Bb8 Bf4 Qb1 Ne1 Qd3 d1B Rdd6 Rd5 Qd4 Bb3 Qg7 Re5 Rd1 Rd5 Qd7 Rd6 Nf1 Rd4 Ng3 f2+ Kh2 Nc2 Rhe1 Rd2 Rg1 Bh6 Nf5 f1R Ng7 Bg5 Ne6 Bh6 Rh1 g1R+ Bf2 Rg3 Rg1 Rd5 Be3 Bf4 Bc5 Rd2+
Rn3k1n/2KBN3/P1b3Pr/qPN2p1N/2NBQ3/rb2pr2/b4r2/q7 w - - 0 1 legal: proof: c4 g5 b4 d5 cxd5 b6 h4 gxh4 a4 a5 b5 Bh3 Qb3 Bc8 Qb4 axb4 e4 Bh6 d4 Nd7 a5 Bd2+ Kd1 Nb8 a6 Qd6 Ra5 bxa5 f4 Qc5 f5 Bf4 f6 Bd6 e5 Qc4 exd6 Qc2+ Ke1 Qf5 Ke2 Qxf6 Kd1 Qf2 g4 h5 g5 e5 d7+ Kf8 d8N c5 d6 e4 g6 h3 d5 a4 d7 e3 d6 h2 Bh3 h4 Nc3 a3 Ne4 a2 Ne2 a1Q Kc2 c4 Nc5 c3 Kb3 c2 Kc4 b3 Kd5 b2 Bg4 b1B Nc6 h3 d8N Qe1 d7 Rh6 Kd6 Qea5 Bh5 Ba2 Bb2 c1R Bh8 Rc2 Ng3 Rf2 Ndb7 f6 Rd1 h1R Bg4 h2 Ne7 Rhf1 Bh3 h1B Nh5 Bc6 Be6 f5 Bd4 Rf3 Rc1 R1f2 d8Q+ Be8 Qb6 Bc6 Kc7 B8d7 Rc2 Bcd5 Rc1 B7c6 Nd6 Bdb3 Nc4 Ra7+ Kd6 Rc7 Qb7 Rh8 Bd7 Nh6 Nb6 Rc8 Rc4 Rd8 Kc7 Nf7 Rc1 Rh6 Rh1 Qa4 Nc4 Nh8 Rh4 Qa3 Re4 Bd5 Re6 Qa5+ Rb6 Be4 Qc6 Bd5 Qe6 Bc6 Qe4 Qd2 Rb7 Qde1 Ra7 Qa5+ Kd6 Rc8 Ra8 Bd1 Nb3 Bb7 Nb2 Rc3 Nc5 Ra3 Nc4 Bd5 Nd2 Bc6 Nc4 Qb4 Kc7 Bdb3 Nd2 Qa4 Nc4 Qa5+
N5n1/3n4/P1p2nNr/K3R3/N1nbB1q1/kq3bp1/2PP1N2/rQ1R3r w - - 0 1 legal: proof: f4 a5 b4 axb4 g4 h5 h4 hxg4 e4 g5 fxg5 d5 Bb2 dxe4 Bd4 e3 Bxe3 g3 h5 Rh7 Bd4 Rh6 Bh8 Rxh8 a4 Kd7 g6 Kd6 g7 Kc5 a5 e5 h6 b5 h7 f5 Nh3 e4 Rh2 e3 Na3 c6 Ra2 b3 Be2 Kb4 Bf1 f4 Qb1 b2 Ng1 f3 Rh3 f2+ Ke2 Qg5 Kd3 e2 Bg2 f1N Bf3 e1R Nc4 Bg4 Ne2 Nd7 Nc3 Nh2 Na4 Rh1 Be4 Bf3 Ra1 Ng4 Ncb6 N4f6 Rh5 Qg4 Re5 Ra6 Na8 Bc5 N4b6 Bd4 Na4 Ne7 g8N Ra7 Qf1 b1Q Nh6 Neg8 Qe1 Qa2 Rd1 Ka3 Qg1 b4 a6 b3 Kc4 Rb7 Qf1 Rb5 Qe1 Ra5 Qg1 Qb1 Qf1 b2 Qg1 Qf4 Ng4 Rh6 Nf2 Qa2+ Kd3 b1N Qh1 Qe6 Qf1 Qeg4 Kc4 Qe3 Qe1 Ka2 Kb4 Na3 Re6 Nc4 Re8 Rah5 Re5 Rh1 Qg1 Nd6 Qf1 Qb3+ Ka5 Ka3 Qb5 Ne7 Qb6 Re8 h8N Neg8 Rb5 Re5 Ng6 Rc5 Qb7 Rc3 Re5 Re3 Rg1 Re1 Qb6 Ra1 Rd1 Qf7 Qb1 Qfe6 Rh5 Qb3 Re5 Nc4#
3N1r1k/4K3/Pqr1bprn/B4NP1/2NQ1rbR/2Bb2q1/1p5P/1N3b2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 e3 a5 Ba6 axb4 Bf1 d3 Kd2 Nf6 Ke1 d2+ Ke2 Ng8 f4 d5 Nf3 e5 Rg1 d4 Rh1 d3+ Kf2 Bc5 Ng1 Bd4 exd4 e4 g4 g5 a4 Nd7 Bh3 Ne5 fxe5 Nf6 Ra3 Ng8 Kf1 Qe7 Rc3 Qd8 Rc6 h6 Rf6 h5 Rf4 gxf4 g5 Qa5 Be6 Qd8 Bg4 hxg4 Kg2 Kf8 c4 Kg7 e6 b5 e7 b3 a5 e3 c5 e2 d5 e1R c6 g3 Kf3 b2 d6 b4 a6 f6 d7 g2 Kg4 b3 Kf5 f3 c7 f2 Ne2 g1Q Ke6 f1B Kd6 Qg3+ Nf4 Re4 Rg1 Rh6 e8N+ Kh8 Ng7 Rg6 Nf5 Nh6 Qg4 d1R Bd2 Rde1 Bc3 d2 Rg2 d1B Rc2 Re5 Ne6 R1e4 Rc1 Rb4 Qd4 Bg4 Re1 Rc4 Re4 Rec5+ Rf4 Bb7 c8N Qb6+ Ke7 Rc6 Ncd6 Rf8 d8B Bc8 Bc7 Ra4 Nd8 Be6 Nc4 Rb4 Nbd2 b1B Re4 Bbd3 Nb1 b2 Rf4 Bge2 Rh4 Bg4 Bf4 Rb5 Bfd2 Re5 Ba5 Re4 Bdc3 Rf4
1nb1QN1q/3p1r2/5P1R/Nn6/B2q1p1P/q1nR1P1b/3pp3/2kN2KN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 d4 h5 d5 hxg4 d6 f4 Qd3 cxd6 Qd2 d5 Qd1 d4 a3 b6 Bb2 b3 Bc3 e6 Ba5 Bb4+ axb4 bxa5 b5 Rh5 Ra2 Rf5 exf5 Ra7 Ra1 Rc7 Nf3 Rc3 Ng1 Rh3 Qc1 Rh4 Qd1 Rh8 c4 Kf7 h4 Kf6 b6 Ke5 c5 Ke4 f6 g5 c6 a4 c7 g3 f3+ Ke3 b7 b2 Bd3 g4 Kf1 e5 Nc3 b1B Nh3 g2+ Kg1 a3 Nb5 e4 Bf1 a2 Nd6 d3 Qa4 Kd2 Qb5 e3 Nc4+ Kc1 Qh5 d2 Qe8 Ne7 Nb2 Rf8 Nd1 Nd5 Nhf2 Nc3 Bb5 Rf7 Ba4 Nb5 Rh2 Nc3 Nh1 Nb5 Qe4 Qg8 Qe8 Qh8 Rh3 Na3 Rg3 Nb5 Kh2 g1N Kg2 Na6 b8N Ne2 Nc6 Nec3 Na5 e2 Kg1 Nb8 Rg2 Ba6 c8N g3 Ne7 Bc8 Rh2 g2 Ng6 Qg8 Rh3 Qh8 Rg3 Qg7 Nf8 Qh8 Kh2 g1Q+ Kh3 Rg7 Rg6 Qd4 Kg2 Re7 Rh6 Rf7 Ndf2 Kb2 Kh2 Bf5 Kg1 Bg4 Rc1 Bh3 Rc2+ Kb1 Rb2+ Kc1 Rb3 a1Q Ra3 Qc4 Rb3 Qa3 Nd1 Na2 Re3 Nac3 Rd3 Qd4+
3N4/p2B3p/1R2n1K1/1n1n4/1p2Pk2/2Pp1r1r/Q4BBP/Rqq1Bb1q w - - 0 1 illegal: Other
1nq4r/1kB1Pq2/1Bn1b3/4bPNr/7N/4q1rb/R1K1r1P1/B2rQ1rB w - - 0 1 illegal: Other
r7/1RrrKN1n/4N1R1/4QqP1/2n1RrB1/Pq1R2b1/1qP2n1b/b1n2k2 w - - 0 1 illegal: No possible last move, all moves rejected
bN1k2BK/1qr1r1n1/3n3N/NN3r2/RQ1nrP2/6b1/rPP1r3/b1b1R3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 h4 gxh4 d5 c5 d6 c4 Qd4 c3 Bd2 cxd2+ Ke2 d1R Qd2 Rc1 Qd1 Qc7 Ke1 Qxd6 Nd2 Qb6 Nb1 Qd8 Ke2 a5 Ke3 d5 Kf4 h5 Kg5 e5+ Kg6 a4 g4 e3 f3 e4 g5 h3 b6 d4 b7 h2 Qe2 d3 Ra2 a3 Nh3 h4 Rg1 h1R Qh2 d2 Qf2 d1R Bd3 e2 Qa7 e1R Nd2 e3 Qa5 e2 Qe5+ Ne7+ Kf6 Qc7 g6 Nc6 b8N Nd4 g7 Rh2 g8N Qb7 Nb1 Rh7 Nd7 Bh6 Nb8 Kd8 Qg5 Nef5 Nc3 Nd6 Bg6 Rc7 Ra1 a2 Nf2 h3 Rb1 a1B Rg3 Ra2 Rg4 Rf1 Qb5 e1B Nfe4 Bg3 Rf4 Rde1 Nd2 Rhe2 Bf7 h2 Nb3 h1N Qb4 Rcd1 Rg4 Bc1 Kg7 Bd7 Rf4 Bc6 Kh8 Rdd2 Be6 Re4 Nh6 Rde2 Bd5 Ree7 Bg8 R2e4 Nb5 R1e2 Ng4 Nf2 Nh6 Nd1 Rg4 Ne3 Na5 Nef5 Rf4 Ng7 Rh4 Bg5 Re1 Bc1 Rf4 R4e5 Re4 Rf5 f4 Rff2 Re5 Re4 Rc5 Rg2 Rc3 Rge2 Ra3 Qc8 Ra4 Ba8 Na7 Qa6 Nb5 Qb7
1b1Br1Rn/4b3/bb2kN1b/q5rq/1Pr1Pr2/4K1Rb/3RRnP1/3Q2B1 w - - 0 1 legal: proof: h4 g5 d4 gxh4 c4 f5 a4 b5 axb5 e6 d5 f4 e4 Qg5 c5 Qd8 Na3 d6 Nc2 dxc5 Ne3 fxe3 d6 Qg5 Bc4 Qd8 Bd5 exd5 Kf1 c4 Ke2 Qg5 Ke1 Qd8 f4 Kd7 Ke2 h5 b4 c5 b6 a5 f5 a4 f6 h3 b7 h2 f7 h4 Qd2 h3 Rb1 a3 Rb3 c3 Qe1 c2 Kf3 d4 Rb2 a2 Qg3 a1B Qe1 d3 Ra2 e2 Ra4 d2 Kf2 d1B Bf4 c1R Bh6 c4 Qd2 e1B+ Ke3 c3 Ra7 c2 Qf2 Be5 Bf4 Nc6 b8R+ Ke6 d7 Qa5 d8R Bg4 Rd5 Nh6 Ra6 Rg8 Kd3 Be7 f8B Nf7 Qh4 Nh8 Qg5 Bf2 Bh6 Bb6 Qh5 Rg5 Ne2 Bb7 Rg1 h1Q Ng3 h2 Be3 Bh3 Rg8 Re8 Qd1 Bb8 Nh5 Ne5+ Kd2 Bc8 Nf6 Ng4 Re1 Nf2 Re2 Bb7 Ra8 Ba6 Rd3 Bg3 Rad8 Bb8 Qg1 Rf1 Bd4 Rc1 Rg3 Rf1 Ke3 c1B+ Kf3 Bd2 Bc5 Rc1 Qd1 Bdf4 Rdd2 Rc4 Bd6 Bfe3 Bc7 Bf4 Bd8 Bfe3 Qb1 Qd1 Qc2 h1R Bf8 Rf1 Qa4 Qa1 Qd1 Q1e5 Bh6 Rg4 Bf4 Qh5 Bd6 Bh6 Bc5 Rg5+ Ke3 Nh1 Kd3 Rf4 Bg1 Rd4+ Ke3 Nf2 Rd3 Rc4+ Rd4 Rcc5 Rdd2 Rc4+
1n6/1PR1pq2/2Pn1kBn/b2R1r1q/1Nb3nP/r6q/R4K2/r1QN1n1R w - - 0 1 illegal: No possible last move
3N3K/bnbPB3/1bb3Nr/2Q1P2n/3R1qN1/pN3b2/3r2P1/1B2bkbr w - - 0 1 illegal: No possible last move
R2q2Nk/3p3b/q2K4/1bB4P/rrrP3b/1r1BRQB1/2r3rP/nB1n4 w - - 0 1 legal: proof: e4 f5 c4 fxe4 b4 h5 g4 a5 gxh5 axb4 c5 b3 c6 Nxc6 Na3 b2 Nc4 Nb8 Nb6 Ra3 Na8 Rxa8 Ke2 Kf7 Ke3 b1B Kf4 b5 Ke5 c5 f4 g5 a4 Kg7 d4 g4 a5 c4 a6 c3 a7 e3 f5 c2 Bc4 b4 Bd3 g3 Ra3 g2 Rc3 e2 Qf1 e1R+ Be3 c1R Nh3 g1R Rc4 b3 Qf2 b2 Rc7 Rc4 Ng5 Na6 Bf1 Nh6 Qg2 Re2 Nh7+ Ng4+ Kd5 e5 Qh3 e4 Qg3 Be7 Nf6 Nc5 Qf3 Rgg2 Ng8 Nb3 Rb7 Na1 Rg1 Bh4 Rb5 Rec2 Rh1 Nf2 Bf4 e3 Bg3 e2 Rb8 e1Q Bd3 Ba6 Kd6 Qea5 Re1 Nd1 Re3 Bb5 Rc8 Rb8 a8B Qa6+ Bc6 Rb6 Ra8 Rh6+ f6+ Kh8 Qf1 Rg6 Qf3 Rg5 f7 Ra4 f8B Rgc5 Be7 R2c4 Be2 Bh7 Bd3 b1R Bf8 Rb3 Bb1 Qa5 Be7 Rb8 Bce4 Rcc8 Bed3 Qa6+ Kd5 Rcc2 Ba3 R8c4 Bc5 Bc6+ Ke5 R8b4 Kd6 Bb5+
k2Nn2Q/pNrPRn2/4br2/3n1P2/r2qBb1b/R2rr1N1/K1P1N1b1/8 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 g5 h4 gxh4 e5 f5 e6 cxb4 axb5 f4 d3 dxe6 Ra5 e5 Ra1 e4 Be3 fxe3 g4 Kd7 f4 Kc7 d4 Kb7 f5 e5 d5 h5 b6 e2 Kd2 e1R Kc1 b3 Kb2 e3 d6 e4 g5 h3 g6 h4 g7 h2 Ra4 e2 Nd2 e3 Ra5 h3 Ka3 b2 Ka2 b1N Nb3 Nc6 Qd4 Rh6 Qa1 Be6 Nf3 Ne5 Qb2 Nf6 g8N Rd1 Ng1 e1B Be2 Nf7 Bd3 e2 Rc5 Bh4 Ra5 e1R Qd4 Rc8 Ra3 Rc7 Qc3 Ka8 Ne2 Ne8 Qh8 Rf6 Be4+ Rd5 Rg1 h1B Na5 h2 Rg7 Bg2 Nb7 h1R d7 Bd6 Rh7 Bf4 Rg7 Rh3 Rh7 Re3 Rg7 Rg6 Nf6 Rh1 Nh5 Rf6 Nhg3 Nc3+ Kb3 Ra1 Rh7 Ne5 Re7 Nf7 Kb2 Rf1 Kb3 Rdd3+ Kb2 Nd5 Ka2 Rb1 Ra4 Rb5 Na5 Rcc5 Ra3 Rb4 b7+ Kb8 Nc3 Qb6 Nce2 Kc7 b8N Ra4 Nbc6 Rcc3 Ne5 Kb8 Nec6+ Ka8 Nb7 Qd4 Ncd8 Rc7
1Kr1R3/5qrn/N1NNn3/b2pN2R/1bqbbP1r/3Q1Pkb/2P4r/5B2 w - - 0 1 legal: proof: b4 f5 d4 c5 h4 cxd4 a4 a5 h5 axb4 e3 f4 Ba3 bxa3 exf4 g6 Rh3 gxh5 Rh1 h4 Kd2 Kf7 Kd3 Kf6 Kc4 Kf5 Kc5 b5 a5 h5 g3 e5+ Kd5 d3 a6 a2 a7 d2 Nc3 b4 Bg2 e4 Qe2 d1R+ Qd3 Kg4 Na4 h3 Ne2 h4 Rf1 h2 Nec3 h1B Qd4 h3 Rb1 a1B Nb5 e3 Nbc3 b3 Qd2 h2 Qd3 e2 Qd4 e1B Nb6 b2 Rc1 b1Q Nc4 Rh4 Ne4 Qe7 Ned6 Qb4 Qd3 Na6 Rb1 Qa4 Rb5 Ba5 Re1 Nc5 Re5 Qg7 Re8 Ne6 Rc5 Rb8 a8N Qf7 Nc7 Rg1 Na6 Bd4 Rb5 Rb7 Ne5+ Kh5 Rc5 Rc7 Rb5 Rh3 g4+ Kh4 g5 Qc4+ Ke4 Be7 g6 Nf6+ Kf5 Bf8 g7 Nh7+ Ke4 Be7 g8N Bf8 Nb7 Bfb4 Ne7 d6 N7c6 Bd7 Bf3 Rg2 Be2 Bc8 Bf1 Rg7+ Nf3+ Kg4 Rc5 Rh4 Rh5 Qc3 Kd5 Bg2 Nbc5 h1R Ne4 Kh3 Nfe5+ Kh2 Qe3 Bh3 f3 Bb7 Qd3 Ba8 Nd2 Kg3 Ndc4 Rh2 Rh6 Bf2 Rh5 Rb7 Na7 Bd4 Kc6 Rd7+ Kb5 Be4 Nac6 d5 Nd6 Rg8 Nc5 Rg7 Ka6 Nc7+ Ka7 Qc4 Kb8 Ne6 Na6 Re7 Rh8 Rc7 Re8 Rc8+
3Rb1q1/N2bn2n/3bb2B/2PQ1P1B/p3NPnK/q1br2Br/n5B1/2k5 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 b4 Kf7 c4 Kf6 g4 Ke5 f4+ Ke4 Kf2 a5 c5 e5 g5 h5 b5 d5 g6 h3 Kg3 h2 b6 a3 g7 h4+ Kh3 a2 b7 a4 Ne2 d3 Qb3 d4 Qb6 d2 Qb3 d1B Qc2+ d3 Ng1 Bh5 Qd1 d2 Nf3 Ke3 Bg2 e4 Na3 Bd7 Qf1 Bhe8 Ng1 Bd6 Rb1 a1Q Rb6 Nc6 b8B Nce7 Rb5 Nf6 g8B Nh7 Nb1 Qa3 Bb2 d1N Ba2 Nc3 Bf7 Na2 Nc3 Kd2 Bc7 e3 Bh5 e2 Qf3 e1B Nge2 Be6 Kg4 h3 Ng3 B6d7 Ba1 Kc1 Qd5 Rb8 Rb2 Rb3 Nb5 Rd3 Na7 Be6 Rb5 B8d7 Bf6 Qg8+ Kh4 Be8 Rb3 B8d7 Rg1 h1B Bg7 h2 Bh6 Be8 Bd8 B6d7 Bf1 Bc3 Ne4 Bf3 Rg2 h1N Rd2 Nf2 Bg2 Ng4 Ba5 Bd1 Bd8 Nc8 Bf6 Ne7 Bd4 Bf3 Bf2 Be2 Bg3 Bd1 Rb8 Bb3 Rd8 Bc4 Rf2 Bb3 Rf3 Bc4 Qc6 Bce6 Qd5 Rd1 Bf8 Ng6+ Kh3 B8f7 Bh2 Ne7 Bg6 Ng5+ Kg3 Rh4 Bh5 Bfe8 Bh6 Rd4 Bg1 Rd1 Bf2 Rd3 Be1 Rh1 Bf2 Re1 Kh4 Rh1+ Rh3 Nh7 Bg3 Rxh3+
2q1Kb2/2bn3k/1P1NB3/1n1p1P1n/3r2Pr/1bN3b1/B1R3qN/1nb1Q2N w - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 e4 fxe4 f5 h4 Bf4 b6 a4 gxf4 g4 c5 Ra3 cxd4 Rg3 b5 axb5 hxg3 Ke2 Kf7 c4 Kg7 h4 a5 h5 e5 c5 e3 Kd3 a4 Kc4 f3 Kd5 d3 b6 e4 b7 f2 c6 g2 h6+ Kh7 b5 a3 b6 e2 c7 e1B Qc2 e3 Rh5 a2 Rg5 a1B Ne2 g1Q Qc1 d2 Nbc3 d1N Ng3 e2 Rg6 Ra4 Re6 Bb2 Rc6 Rd4+ Ke5 d5 Nh1 Nd7+ Ke6 Qg2 Kf7 Ngf6 b8N Ba6 c8B Bc4 Rc5 Bd2 Nc6 e1B Ne5 Bb3 Bc4 f1N Nf3 Nh5 Nh2 Bf4 Rc6 Qc7 Ke8 Beg3 Qd2 B4d6 Qe1 Nd2 Rc5 Nb1 Rc6 Nb8 Be6 Nd7 Rc5 Bc1 Rc6 Bc2 Ba2 Bb3 Rc5 Nb2 Rc6 Nc4 Rc5 Nca3 Rc6 Rg8 Rc4 Nb5 Rc5 Kh8 h7 Rg6 Rc4 Rh6 Rc6 Kg7 h8N Kh7 Nf7 Qb7 Rc5 Bc7 Nd6 Nf4 Nce4 Rh4 Rc2 Nh5 Nc3 Qc8+
1RQr2r1/B3RKqR/3b4/p2Pq3/2Pb3r/nPn2n2/2B1r1kn/1N4bR w - - 0 1 legal: proof: e4 c5 h4 b5 a4 bxa4 d4 cxd4 Ba6 g5 Bf1 gxh4 Bh6 d5 Qc1 f5 Nd2 d3 Qd1 d4 Bf4 Bb7 Be3 Bd5 exd5 Nd7 Ne4 fxe4 Bc1 Nb8 Kd2 Kd7 f4 Kd6 g4 a5 c4 e5 b3 h5 g5 a3 f5 e3+ Ke1 e2 Kf2 e1Q+ Kf3 d2 f6 e4+ Kf4 d3 Kf5 a2 Kg6 Ke5 f7 Kf4 Qe2 Kg3 Qd1 e3 Bg2 h3 Be4 e2 Rb1 a1B Rh2 h4 Rf2 h2 Rf1 h1R Bf5 h3 Ba3 h2 Bc5 Nh6 Ba3 Qd7 Be6 Bd4 Bh3 Bd6 f8R Rg8+ Kh5 Nc6 g6 Qg7 Rc1 Ne5 Rc3 Rd8 Nf3 Nhg4 Rf7 Rg1 Rc1 h1R Re7 Nh2 Bc5 Rg2 Bf5 Rf2 Qc2 d1N Nd2 Kg2 Ba7 Nef3 Nb1 d2 Qe4 Nc3 Qe6 d1N Bc2 Nb5 Qc8 Ndc3 Rd1 Qf8 g7 Na3 Rd3 Qf6 Rde3 Qe5+ Kg6 Qd1 Rc7 e1B Kf7 Re2 Re4 Bg1 Rh4 Bg3 Rh7 Qdd4 Re7 B3f2 Rd1 Nf1 Re1 Rh4 Rc1 N1h2 Rd1 Rh8 g8R+ Qg4 Rf8 Rg8 Rc1 Bd4 Rd1 Bgf2 Rh1 Bg1 Qa8 Rd7 Rb8 Rdd8 Qc6 Qgg5 Qc8 Qgg7+
NR3N1n/bb1bRB1p/1q1r1k1q/1q5R/3n2rK/3bP2P/3QP1r1/5r1R w - - 0 1 legal: proof: c4 e5 g4 f5 b4 fxg4 c5 a5 b5 a4 c6 a3 Bb2 axb2 Na3 e4 Nb1 e3 dxe3 Ra5 Kd2 Rxb5 Ke1 Ra5 Bh3 Ra8 Bg2 Nxc6 Bf1 Nb8 a4 Kf7 f4 g5 Kf2 d5 Kg3 c5 h3 b5 a5 b4 f5 c4 a6 c3 a7 b3 f6 c2 Nf3 c1Q Ra5 d4 Nh4 d3 Ra4 d2 Re4 Ne7 Re6 Ng6 Qe1 d1B Rc6 Qb6 Na3 b1B Qd2 b2 Qd3 Rg8 Qd2 Nh8 Qc3 Ba4 Re6 Bd3 Qb4 b1Q Nf3 Qcc6 Rh2 Bc5 Qc3 Bb7 Nh4 Q1b5 Rh1 Rd8 Qb4 Rd6 Bg2 Bd4 Bd5 Bc5 Kg2 g3 Nc4 g4 Ng6 Bd4 Qd2 Bc5 Kf1 g2+ Kf2 g1R Nf8 Rf1+ Kg3 Bd4 Kh4 g3 Na3 g2 Nc4 g1R Re4+ Re6 Re5 Rg2 Rh5 Kg8 f7+ Kg7 Nd7 Rd6 f8R Bc5 Re8 Kg6 Nf8+ Kf6 Bg8 Q6a6 Be6 Qcb6 Re7 Nc6 Bf7 Nd4 Rd5 Re8 a8R Rc8 Rb8 Re8 Ng6 Rg8 Nf8 R8g4+ Kh5 Qd8 Nb6 Qc7 Na8 Ba7 Rg5 Qcb6 Rge5 Qb2 Rg5 Bd7 Rc5 Q2b5 Rg5 R4g3 Kh4 Qaa5 Qc3 Qd5 Rh2 Qab5 Rh1 Qf5 Qd2 Qg6 Rc5 Qh6+ Rh5 Rg4+
1BR3q1/Rnn2P2/K2r1Rr1/2P1b2Q/nB1nkN2/qq3q2/1p4RP/1b3r2 w - - 0 1 illegal: No possible last move
N2r2N1/4bN1k/2r2R2/bKNPBr2/2Pn1r2/Bbp3Q1/1q1bn2P/4nn2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 exf4 b6 c6 b7 Qc7 Bb2 Qb6 Bc1 Qd8 b5 Qb6 Bg2 Qd8 b6 Be7 Bd5 Rh5 Bc4 Rh8 Bb5 Bf8 c4 cxb5 Ra6 d5 Ra3 d4 Rc3 dxc3 e4 g5 Ke2 a5 d4 f5 Kd3 Kf7 d5 Kg6 e5 f3 e6 f2 e7 f1N e8N b4 Qe1 f4 Bb2 a4 Kd4 b3 Kd3 g3 Nf6 a3 Ne4 g2 Ba1 f3 Bb2 f2 Nf3 g1B Nh4+ Kh7 Nf3 g4 Ne5 a2 Nd7 a1N Ng3 Ra6 Qd2 Ne7 Qc2 Nf5 Nd2 Be7 Ba3 b2 Bc5 b1R Qa2 Nc6 b8B Nfd4 b7 Qb6 Bc7 Ne2 b8N Qb2 Nf5 g3 Nd6 g2 Ba3 Ncd4 Nf7 Rc6 Nb3 Rd8 Nb6 Bd7 Nc5 Nac2 Na8 Ne1+ Ke4 Bg4 Nbd7 Bf5+ Ke5 Bc2 Qb3 Rd1 Qb8 Bb3 Ke4 Rd3 Be5 Rf3 Qd6 Rf5 Nf6+ Kg6 Ng8+ Kh7 Nh8 Ne3 Qc7 f1R Nf7 Bf2 Qb8 g1B Qd6 Bg3 Qb8 B1f2 Rg1 Bf4 Rg6 Bg1 Rf6 Rf3 Qc7 Nf1 Qd7 Rh5 Qg4 Rf5 Qg3 Bd2 Nd7 Ne6 Bb8 Nc1 Bc7 Bb6 Be5 Nc5+ Kd4 Ba5 Bf4 Na6 Be5 Nc7 Nc5 R3f4+ Ne4 Rcd6 Kc5 Ne6+ Kb5 Ne2 Nc5 Ra6 Bd6 Rc6 Be5 N6d4+
N1Nb1Rbq/2Q1N1n1/n3kBn1/2n5/PpK2b1n/3PPB1n/5r2/N3nq2 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Nh3 f4 Ng1 dxc6 Na3 c5 Nb1 c4 a3 Ra5 a4 Rf5 gxf5 b5 Ra3 Qd7 Rd3 Qd8 Rd6 h6 Rg6 h5 Rg4 hxg4 h4 Ke7 f6+ Ke6 f7 g5 h5 c5 d3 f2+ Kd2 b3 Kc3 f3 h6 b4+ Kb2 g3 h7 g2 Nh3 g1N Qe1 c3+ Ka1 c4 Nd2 c2 Kb2 c3+ Ka1 b2+ Ka2 b1N Kb3 g4 Kc4 g3 Kb5 g2 Bb2 c1N Rh2 c2 Rh1 Be7 Bc3 Nb3 Bf6 c1B Bg7 Na6 Be5 Nbc5 Nb3 Bf4 e3 Nd2 Be2 f1N Nf2 Ng3 Qc1 Nf5 Bf6 Nh3 Rf1 g1N Ne4 f2 Bf3 Ng7 Nd6 Bb7 Na1 Bd5 Nc8 Ba2 Re1 f1Q Re2 Qf8 Rf2 Bd8 Qc2 Ne7 Qc3 Rg8 h8N Bb3 Ng6 Rh8 Qc1 Rh7 Qc2 Qh8 Qc3 Rh5 Qc2 Rf5 f8N+ Kf7 Nd7 Ke6 Ndb6 Ba2 Be4 Ndf3 Na8 Ne1 Bb7 Ngf3 Qc3 Nb3+ Kc4 Nh4 Bf3 Nbc5+ Kb5 Nc6 Nge7 Ne5 Qc2 Neg6 Qc3 Kd7 Qe5 Bg8 Qc7+ Ke6 Kc4 Rd5 Rg2 Rd7 Rg5 Rd6 Rf5 Rb6 Bb2 Rd6 Rf8 Rd5 Bc3 Rg5 Bd4 Rg2 Bf6 Rf2
4B2q/2B1n1rr/k1qNP1p1/7P/2q1Rbq1/2r2PnR/n5K1/RQ1nRq2 w - - 0 1 legal: proof: f4 a5 d4 e5 b4 exf4 d5 axb4 d6 f3 e3 f2+ Ke2 cxd6 Kd2 d5 Bd3 f1N+ Ke1 d4 Bg6 h5 Bd3 f5 Nc3 f4 Ke2 b6 Ne4 Bb7 Nf2 f3+ Ke1 Bc6 Ng4 f2+ Ke2 Bf3+ gxf3 hxg4 a4 d5 c4 Kd7 h4 Kc6 h5 Kb7 c5 g6 a5 b3 e4 b2 e5 b1Q e6 g3 Qc2 b5 c6+ Ka6 c7 g2 c8R Bd6 Rc3 Bf4 Rc8 Nc6 Nh3 g1Q Bb2 Nb4 Ra4 Ne7 Rc7 Rh7 Bc4 Na2 Qd3 Rc8 Qe3 Qh8 Rb7 Qe4 Rh2 Qg4 Ng5 Rc5 Bb3 b4 Rh3 Rc3 Nf7 Rg7 Bd1 b3 Nd6 Rh7 Ba1 b2 Rab4 b1R Ba4 Rbb3 Be8 Rc7 Rc4 Rc3 Rb1 Rb7 Re1 d3+ Kd1 d4 Qc1 d2 Qb1 Qc6 Ke2 d1N Bb2 Ka7 a6 Kb6 a7 Ka6 a8R+ Ra7 Bc1 Rg7 Be3 Ng3+ Kd2 d3 Re4 Be5 Bb6 f1Q Bc7 Bf4+ R1e3 Qg2+ Ke1 Qc2 Re2 Q2a4 R2e3 Qac4 Re2 Nb2 Kf2 d2 Kg2 d1Q R2e3 Qdd3 Re2 Nd1 Re1 Qf1+ Kh2 Rh7 Rd8 Nc1 Ra8 Nc8 Bd8 Qfd3 Rb8 Rag7 Bc7 Ne7 Kg2 Ka7 Rb2 Ka6 Ra2+ Q4a4 Ba5 Qac4 Ra1 Na2 Bc7 Qf1+
Rq1nq1nN/Nb3b1k/nqPQ1P2/N5r1/2N3n1/1R2B2p/4q1Pn/3Kb3 w - - 0 1 legal: proof: d4 a5 h4 b5 f4 f5 b4 axb4 e4 fxe4 f5 c5 f6 cxd4 Be2 g6 Bg4 Ra3 Be6 Rg3 Bf5 Rg5 hxg5 gxf5 a4 Kf7 c4 Kg6 a5 d5 a6 h5 c5 e5 c6 f4 a7 d3 a8N b3 Nc3 d2+ Ke2 d4 Nc7 d3+ Kf1 e3 Ra4 b2 Ra2 b1Q Ra8 e4 Qe1 d1N Qg3 e2+ Ke1 b4 Qf3 h4 Qg4 f3 Qg3 f2+ Kd2 f1N+ Ke1 h3 Nf3 b3 Bd2 b2 Ra5 Rh5 Rc5 Qe8 Na4 Na6 Nb5 Nf2+ Bc1 Ng4 Ne5+ Kh7 Nbc3 Bb7 Ra5 Bb4 Nb6 Nfh2 Kd2 e1N Kd1 e3 Nec4 d2 Nb5 Nc2 Qd6 Nd4 Na7 Ne6 Re1 Nd8 g6+ Kh6 g7 Kh7 Ra3 Rg5 Na5 Bc3 Rh1 Bb4 Nbc4 Bc3 Ke2 Bb4 Rc3 d1B+ Ke1 e2 Be3 Bb3+ Kd2 Qf5 Ra1 b1Q Ra2 Qfe5 Ra1 N8h6 g8N Qg1 Ne7 Ng8 Ng6 e1Q+ Kd3 Ba2 Kc2 Q5g3 Rb3 Qe2+ Qd2 Qb8 Nh8 Qgf2 Kc1 Bc3 Qd6 Bd2+ Kc2 Be1+ Kc1 Bb1 Ra2 Bg6 Raa3 Bf7 Ra2 Qb2+ Kd1 Qbe5 Ra4 Qc5 Raa3 Qb6 Nb5 Bc8 Nb7 Nb4 Ra8 Na6 Nba5 Bb7 Na7 Qe2+
2nB1N1N/Q4K2/1P1bqp2/1krbNPb1/1n2n1N1/nPq2b2/4RBq1/1b6 w - - 0 1 illegal: No possible last move
q3k3/QR1qq1PR/RrB2PR1/K2NN3/2Pb3r/1b1b1p2/4r1nb/4rr2 w - - 0 1 legal: proof: f4 a5 e4 g5 d4 f6 b4 axb4 g4 c6 h4 f5 h5 fxe4 Bd2 c5 f5 cxd4 Be3 Nc6 Bf4 gxf4 g5 Ne5 Bb5 Ng6 hxg6 Qb6 Bf1 Qd8 Kd2 h5 c4 d5 a4 e5 a5 b5 f6 d3 g7 h4 a6 h3 g6 h2 a7 b3 Kc3 e3 Qc1 e2 Nh3 e1R Nf2 b2 Kb3 e4 Qc3 e3 Be2 d4 Na3 b1R+ Qb2 b4 Ka4 d2 Nb5 d1B+ Qc2 d3 Qb3 d2 Rf1 h1Q Nd3 Qe7 Nc3 Nh6 g8R Bf5 g7 Ng4 Nd5 Rh4 Qc2 b3 Nc5 b2 Rf2 Bd3 Bf1 e2 Rg2 Ne3 Rf2 Ng2 Nd7 Rb8 Ne5 Rb6 Ka5 f3 Qc3 Bb3 Qd4 d1Q Rh8 Rc1 Rh5 b1R Rh7 Rb2 Rb1 Qh3 a8R+ Qc8 Ra6 Qa8 Ng6 Qc7 Ne5 Bd6 Qc5 Qe7 Qc7 Bc5 Qa7 Rbc2 Rb2 Bd4 Rb1 Ne3 Bh3 Ng2 Bf5 Rf1 Be4 e1B+ Rd2 Bg3 Re2 Bh2 Re1 Rff2 Rg1 Rce2 Rb2 Rf1 Rb1 Ne1 Rg6 Qd2+ Nb4 Ng2 Bc6+ Qd7 Rb2 Qe3 Nd5 Rce1 Nf7 Qe7 Ne5 Bd1 Rb3 Rb8 Rb7 Bb3 Rc7 Rb4 Rb7 Rb6
n4N2/br2B1K1/n2NPnB1/3P1n2/1r1Q1r1p/B1Rr1q2/4nPrr/3k2B1 w - - 0 1 illegal: No proof kernel
4rQnk/nrrRrr2/2nnBNR1/p1P1B2b/1P6/B4q2/2K1BP2/4r1q1 w - - 0 1 legal: proof: h4 b5 a4 bxa4 d4 g5 d5 gxh4 d6 cxd6 e3 d5 Nh3 d4 Ng1 d3 Kd2 d5 Be2 f5 Bf1 d4 Nc3 Bg7 Ne4 Be5 Ke1 d2+ Ke2 Bg7 Kd3 fxe4+ Kc4 d3 Kb4 Bd4 exd4 Kf8 Kc3 Ke8 b4 Kf7 g4 Kg7 d5 h5 d6 e5 d7 a5 g5 e3 g6 h3 Nf3 a3 Qe2 d1Q Ne1 h2 Bg2 h4 Bd2 h3 Nf3 a2 Re1 h1N Nh2 e4 Ng4 h2 Bf3 Ra7 Rb1 a1R Rg1 Nc6 Rb3 Qg5 d8B Rc1 Qe1 e2 Be7 e3 Rb1 Rb7 Ne5 Ng3 Ng4 h1R Ne5 Bg4 Kb3 Nf5 Bd6 R1h7 Nd7 Bh5 Be5+ Qf6 Bdc3 d2 Bb2 Nd6 Ra1 Nc8 Ba3 N8a7 Qf1 e1R Qb5 e2 Qc5 Nb8 Kb2 Nbc6 c4 Rc2+ Kb3 Qc1 Qd6 d1N Rb1 Nc3 c5 Rd2 Ra1 Ncb5 Ra2 Rd4 Rd2 Rf4 Qb8 Qa1 Kc2 Nd6 Rg4 Rg1 Rd1 e1R Be2 Rg3 Rd3 Re3 Rg1 Nge7 Qd8 Re8 Qc8 Kg8 g7 Qf8 Rg6 Rf7 Bf6 Re6 Be5 Qc1+ Kb3 Qg5 Kc2 Qg1 Rd4 Nef5 Qb8 Nh6 Qd8 R6e7 Rd1 Rf4 Nf6+ Kf7 Bd4 Rec7 Ne4 Kg8 Qf6 Ndc8 Be5 Rf5 Rd7 Nd6 Qe7 Rf6 Kc3 Re6 Kc2 Qf3 Qf6 R6e7 Qf4 Ng4 Qh6 Nf6 Qf4 Kf7 g8B+ Kf8 Be6 Rhg7 Bh3 Kg8 Be6+ Kh8 Qf5 Ng8 Qf8 Qgh1 Nf6 Qg1 Bd3 Rh7 Be2 Rhf7
3Kb1bB/1P1q3b/2r2P2/N2prBB1/1B3R1b/1bP3rq/Q3bnk1/4R2r w - - 0 1 illegal: No proof kernel
N4r1Q/2R1p3/n1q3r1/1nP1b1bR/PB1p2KP/n1R1R3/5r1B/1k3nnb w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 c5 d4 cxd4 e5 g6 Na3 f6 exf6 Kf7 Nb1 Ke6 f7 Kd6 Na3 Kd5 Nb1 Kc6 g4 Kc7 f5 Kb6 f6 Kc6 Bd3 Bg7 Nc3 Bf8 Bf5 gxf5 Ne4 h6 g5 h5 Nf2 Bh6 Ng4 hxg4 Qd2 Bg7 Qd1 Bf8 Ke2 Kc5 a4 Kc4 h4 Kc3 g6 d5 g7 b5 Kf2 f4 Ra2 b3 Qf1 f3 Kg3 d3 Bg5 b4 Be3 d4 Bf2 d2 Qg2 d1N Rh2 b2 Kf4 b1R Rb2 g3 Ra2 b3 Qh3 g2 Kg5 b2 Qg4 Ra6 Nh3 g1B Nf4 Qb6 Ne6 Nh6 g8R Bg7 f8B Bb7 f7 Nf5 Nc7 Nd6 Qh5 Qc6 Na8 Nb5 Bg3 f2 Rh3 f1N Kg4 Be3 Bh2 Be5 Rg5 Rc1 Rg3 b1N Bh6 Rf8 Ra3+ Kb2 c4 Ndc3 c5 Ne2 Rc3 Ng1 Rf3 Bd2 Rfe3 N1a3 Rf5 Ka2 B6f4 Kb1 Qh8 Rb6 Rh5 Na6 Bfg3 Rc2 Be1 Bc1 Bd2 Rb2 Be1 Rf2 Bd2 Rb8 f8R Rc8 Rd8 Rb8 Rd7 Rbf8 Be1 Bd2 Rc7 Bc1 Rh3 Bg5 Rhd3 Qd5 Rh3 Rg6 Rce3 Qd6 Bb4 Bh1 Rc3 Qb6 Rhe3 Qc6
1rnn3R/1Rqqn3/1b1n1K1P/1kP1QbPp/pB2N2b/8/Rn2RB2/5r2 w - - 0 1 legal: proof: d4 b5 h4 e5 g4 c5 a4 cxd4 axb5 h5 f4 exf4 Bh3 g6 g5 Be7 Bg4 Bf8 Nc3 hxg4 h5 Nf6 h6 Bg7 Ne4 Bf8 Ng3 Ng8 Nh5 gxh5 Kd2 a5 Kd3 f5 e4 d5 c4 Kd7 b4 a4 b6 Kc6 e5 f3 e6 g3 b7 f2 e7 f1N e8R g2 Bf4 Ne3 Re5 Bc5 Bg3 f4 Re4 f3 Rg4 f2 Ne2 f1N Qb1 g1B Qe1 Nd2 Rhh4 Ne7 Rc1 Bf2 Ng1 Bb6 Re4 N3f5 Rb1 Nd6 Re2 N2e4 Nh3 Rf8 b5+ Kc5 Rf4 Nbc6 b8R Bf5 Qc3 Be1 Nf2 Qc7 Rd8 Rf7 Rh8 Ndc8 Ra2 Ned6+ Re4 Rb8 Rb4 Ba7 b6 Nd8 b7 Bb6 Rb3 Kc6 c5 Rf6 Bf4 Rf7 Bd2 Rf8 Qb2 Rf7 Bb4 Kb5 Nh3 Bh4 Nf2 Be6 Re3 Bf5+ Ne4 Rf8 Re2 Rf6 Kd2 d3 Ke3 d4+ Kf4 d2 Ke5 d1N Qa1 d3 Rbb2 Ra8 b8B d2 Rb3 Rf8 Qc3 Nb2 Qd4 N6f7+ Kf6 d1Q Qc3 Qdd7 Qe1 Qh2 Bg3 Rb8 Bf2 Qf4 Qc3 Qfc7 Qe5 Nfd6+ Kg7 Kc6 Ba3 Ba7 Be1 Bg4 Rb7 Rf1 Bf2 Bf5 Kf6 Bb6 Bb4 Kb5
k2B1K2/b2b1bB1/1r3p2/P1B4B/Nn1NqP1q/2r2p1Q/1bPn2r1/1n2R3 w - - 0 1 legal: proof: f4 a5 b4 axb4 d4 h6 g4 h5 a4 c6 e4 Qc7 gxh5 Qd8 d5 cxd5 Ra3 dxe4 Rf3 exf3 Kd2 e5 Ke3 d5 h4 Kd7 a5 Kc6 h6 b5 h5 Kb7 h7 g5 h6 d4+ Ke4 d3 Qe1 b3 Qd1 g4 Bb2 g3 Qe1 d2 Bd3 d1B Rh2 g2 Bc3 b2 Ne2 g1B Qf1 b4 Bb5 b3 Bd3 Qh4 Kd5 e4 Be5 e3 Bg6 Nc6 Rf2 Bd7 Qh3 Ba3 Bf5 Rc8 Bd6 Nf6+ Kc4 Ne4 Kd5 Nb4+ Ke5 Rhg8 h8B Rc3 h7 Rg2 Bc5 Nd2 Kd6 Ka8 Nd4 e2 Bg7 e1Q h8B Qe4 Bg4 Be2 Rf1 Bc4 Bh5 Bce6 Re1 f6 Ke7 Bg8+ Kf8 Bf7 Bb6 Bf2 Bd8 Bg1 Nc6 Ba7 Nd4 Rc5 Nc3 b1N Na4 Rc3 Bh6 Bc1 B8g7 b2 Qe6 Na3 Qg4 b1R Qh3 Bb2 Bg5 Qg3 Bh4 Qg4 Bf2 Qh4 Ne6 Ra1 Bc5 Nab1 Nd4 Raa3 Bd6 Rc6 B6e7 Rb6 Bc5 Rc3
b1BkB3/1r2b1q1/2Pr2bn/1pq3BP/2bP1K2/1Rn1N1B1/2r4p/RQn5 w - - 0 1 illegal: No proof kernel
3q1b2/2kNPpR1/b2nrbNK/1rq3b1/2nP3n/R3q3/2P1Q1Np/1N1B4 w - - 0 1 illegal: No possible last move, all moves rejected
K1b3b1/2B2nB1/nrn3P1/PN1p2bk/1Q1B3n/pB2b2n/1P5q/3NR1r1 w - - 0 1 illegal: No proof kernel
3b1kn1/BP3bbp/1r1N1b1R/1n3nPr/5nn1/7B/N1PN2p1/K2QNq2 w - - 0 1 legal: proof: g4 c5 d4 cxd4 e4 f5 b4 fxe4 h3 g5 a4 b6 Ra3 b5 h4 gxh4 Rg3 hxg3 axb5 Ba6 Nc3 Bb7 Nb1 Bc8 Kd2 d5 f4 e5 b6 a5 f5 g2 b5 a4 b7 a3 b6 d3 Kc3 e3 f6 e2 Bg5 e1B+ Bd2 e4 Nf3 d4+ Kb3 e3 Ka2 e2 Nc3 Ra5 Nh4 Bg7 f7+ Kf8 Nb5 Nc6 b8N Be6+ Kb1 a2+ Ka1 Nce7 Nc3 Nf5 Nb5 Qf6 Bh6 d2 Be3 d3+ Bd4 Bf2 Nd6 e1N Nf3 Bh4 Nc6 Rc5 Qb1 d1N Nd2 Nc3 Nb4 Nb5 Qd1 Bc4 Be2 Bd5 Kb2 a1B+ Kb1 Bc3 Na2 Ba5 Ka1 Bc4 Nf1 d2 b7 Nd3 Rh3 Nf4 Rh2 Re5 Ba7 Bd8 Bf3 Bg5 Rh6 Bh4 Bc6 Be6 Bd7 Bd5 Qb1 d1N Nd2 Nde3 Qd1 Bb3 Ne8 Qa6 Nd6 Bhf6 Be6 Qc6 Bd7 Qf3 Be6 Qf1 Bd7 Ke7 f8N Bf7 Ne6 Rc5+ Nd4 Kf8 Nf3 Rc6 g5 Ng4 Ne1 Rc3 Kb1 Rh3 Nb3 Rh5 Nd2 Nh2 Ndf3 Nge7 Bb6 Rg8 Nc4 Bh8 Bc8 Ba1 Qd2 Ng3 Bg4 Rg6 Bh3 Bhg7 Ba7 Ng4 Qd1 Rb6 Nfd2 Ngf5 Nd6 Bae5 Rf6 Ng8 Rh6 Nfd4 Kb2 Bef6 Ka1 Nf5+
1NN4r/P1n3q1/4n1P1/R1NPnb1B/1p5Q/K2p1nbb/n5n1/BkN2n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 d4 g5 Kd2 gxh4 Ke1 c5 Ke2 cxd4 Kd2 d3 Ke1 d4 a4 f5 Ra3 Ra5 Ra2 Rd5 exd5 b5 Ra3 Qd6 Rc3 Qb6 Rc6 Qa5 Re6 Qd8 Re4 fxe4 Kd2 Kf7 c4 Kf6 g4 Ke5 c5 h5 g5 b3 f3 e3+ Ke1 b2 c6 h3 f4+ Ke4 a5 e5 g6 e2 Kd2 e1N f5 h2 c7 h4 a6 h3 a7 Qf6 Na3 b1B Qc2 Nh6 Qc3 Qg7 f6 Na6 f7 Nf3+ Kd1 d2 Bc4 Ng4 Be2 Bd6 f8N Bd7 c8N Nc7 Qc4 Ke3 Ne6 e4 Qb4 Bg3 Ng5 Nge5 Bc4 Bg4 Bb3 Kd3 Ne6 e3 Qe7 Kc3 Qd7 Bbf5 Ke2 d1N Bd2+ Kb2 Qd8 Ka1 Nc4 Kb1 Bc3 d3+ Kf1 Re8 Na5 Rh8 Ba1 Nc3 Ne2 Na2 Rg1 h1N Nc6 h2 Qh4 Nf2 Nc5 h1N Nc1 Ne4 Bd1 Neg5 Nb8 Bh3+ Rg2 Nge6 Be2 Ng1 Bh5 Bhg4 Rf2 e2+ Ke1 Bh3 Kd2 e1N Rf4 Ng2 Ra4 Nf2 Ra5 Nfg4 Kd1 N4e3+ Kd2 Nb4 Kc3 Ngf3 Kb3 Na2 Ka3 Nf1 Qg5 Ne8 Qf6 N8c7 Qh4 b4+
Rr2R1RR/qrk5/4B1r1/p4r2/K2Qn2b/1N1PrbP1/2p2BrP/4qb2 w - - 0 1 legal: proof: d4 d5 f4 g5 c4 gxf4 a4 dxc4 a5 Na6 Ra3 b6 Ra2 bxa5 Ra1 a4 g3 h5 Na3 h4 Nc2 h3 Ne3 Nb4 Ng2 Nd3+ exd3 hxg2 Kd2 Kd7 Kc2 f5 b4 c5 b5 e5 d5 a5 b6 e4 b7 f3 b8R e3 d6 f4 Qe1 e2 Qd2 e1Q Kc3 f2 Rab1 f3 Bb2 a3 Ba1 a2 Kc2 c3 Kb3 c4+ Ka4 c2 R8b3 c1R Nh3 g1R Be2 f1R Rc3 f2 Rb8 Nf6 Rb2 Rg2 Qh6 Rg8 Ng1 Qb6 Nf3 Rb8 Nd4 Bb7 Qh8 Ne4 Nb3 Rb1 Qd4 Rg6 Bg4+ Kd8 d7 Be7 Bh3 Bh4 Be6 Kc7 d8R Qa7 Rh8 Bd5 Rcc2 c3 Re2 c2 Rg1 Ng5 Re4 Ba8 Rg4 Bf3 Rh1 Ne4 Rg1 Rh6 Rgg8 Rg6 Rh1 Rd1 Rg1 Rd2 Rb1 Re2 Bc3 Rb7 Bb4 Re3 Bc5 Qe2 Rb2 Rb1 Re1 f1B Na1 Qd1 Rb4 Qd2 Nb3 Qf2 Re2 Qe1 Rb6 Rb8 Rd6 Rb2 Rdd8 Rb7 Ra8 Rb8 Na1 R2b7 Nb3 a1R+ Ba3 Rc1 Bb4 Qd1 Be1 Qd2 Bf2 Qe1 Rh6 Rb1 Rh5 Rb5 Rhh8 Rf5 Bd5 Nf6 Na1 R1b7 Nb3 Re6 Re5 Reb6 Ree8 Re6 Bc4 Re3 Be6 Ne4
b1kN1r1b/1r2B1Kp/2NP1p1P/PB6/1Nn1rN2/2Qr1b1n/2r3n1/1b5R w - - 0 1 illegal: No possible last move
1n2b2n/1N1br2k/4pB1r/qR6/q1P3pP/n1R4K/BQp2PB1/q1r2B2 w - - 0 1 illegal: No possible last move, all moves rejected
2K1N1bN/r4P1p/1q4bb/3Prn1N/1r1B4/R3P3/1ppBn3/Qq1q1N1k w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 g5 h4 gxh4 b4 axb4 d6 e5 a4 f6 d5 f5 e3 f4 Be2 f3 Kd2 fxe2 Ra3 Nd7 Rd3 Nb8 Rd4 exd4 Kd3 Kf7 Kc4 Kg6 Kc5 Kf5 f4 Ke4 g4 e1Q a5 b5 a6 d3 g5 h3 f5 b3 g6 d2 f6 h2 g7 b4 a7 b2 Kb5 c5 d7 b3 Qe2 d1Q Nh3 c4 Qh5 c3 Nf4 c2 Ng6 Nh6 g8N Nf5 Bd2 Bh6 Qh3 Nc6 Qf1 Qc7 d8B Be6 Ka6 Ncd4 Be7 Qb8 Bc5 Ne2 Bd4 Qd8 Rg1 h1B Kb7 Bf3 Rh1 Bh5 Qg1 Kf3 Rh4 Rc8 a8N Rc6 Rg4 Ra6 Nc7 Qd6 Kb8 Ra7 Rh4 Bf7 Kc8 Qb6 Ne8 Qf1 Be5 Qfe1 Ra4 Qf1 Bd4 Qfe1 Nf4 Bhg6 Ne7 Bg8 Nh5 Qf1 Ra3 Qfe1 Nc3 b1R Ne4 Rb2 Neg3 Qb1 Qh2 Qed1 Qh1+ Kf2 Qe1+ Kg2 Nf1 Kg1 Nc6 Kh1 Nd8 Re7 Nf7 Re5 Bc1 Ra2 Qc3 Ra1 Bd2 Ra2 Qa1 b2 Rc3 Ra6 Ra3 Ra7 Nc7 Qd6 Kb8 Ra4 Ng5 B8f7+ Kb7 Be6 Nf7 Rha8 Nh8 Bg8 f7 R8a7+ Kc8 Qb6 Ne8 Rb4
b4rB1/K1kN1np1/5nrp/P6R/r1rPp3/1B2b2P/1Bb3Rr/B2q2Q1 w - - 0 1 legal: proof: c4 f5 b4 d5 g4 fxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bh3 c3 Bg2 Ra6 Bf1 Ra8 e4 Ra3 e5 Ra6 Na3 Ra7 Nc4 Ra8 Nd6+ Kd7 Ne4 Ke8 Ba3 dxe4 Bd6 Ra7 Bxe7 Ra8 Ke2 Kd7 Ke3 b5 Kd4 c5+ Kd5 h6 a4 b4 f4 c2 f5 c1R f6 b3 f7 b2 Bc4 b1B Ra2 g3 Bb3 c4 Kc5 g2 e6+ Kc7 Nf3 g1R Ne5 c3 Nd7 Rg6 Qg1 Nc6 d3 Bb7 Rg2 c2 a5 Rc8 Kb5 Ba8 Ka6 Ne5 Bf6 Bc5 f8B Nf7 e7 Be3 e8B Rb8 Ba3 Rb4 Bb2 Ra4 Ba1 Rd1 Bb2 c1R Ba1 Rc5 Ka7 Rd2 Bfd4 Bc2 Bdb2 Rcc4+ d4 Qc8 Re2 Nf6 Rg2 Nd8 Bf7 Rf8 Bg8 Nf7 Rg5 Rg2 h3 Qe8 Rh5 Qe6 Rh2 Qg4 Rd5 Rf2 Rh5 Qd1 Rg2 Rd2 Rg3 Rh2 Rg4 Qf3 Rg2 Qd1
2q1r1K1/qNn1Q1R1/k1pNN1BB/P1P1rr1b/3Nbp2/qp4P1/2q5/n7 w - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 Ke2 dxe4 Ke1 Bh6 b5 Bg5 b6 axb6 g3 b5 g4 Bh4+ Ke2 Bg3 hxg3 b4 Kf2 Qd3 Ke1 Qd8 Ke2 Kd7 c4 Kc6 d4 Kb6 a4 f5 c5+ Ka6 a5 b5 g5 e5 d5 h5 d6 f3+ Ke3 b3 d7 f4+ Kd2 e3+ Kc3 e2 g6 e1R g7 e4 Kd4 c6 Ke5 f2 Ke6 b2 Kf7 h4 Nf3 h3 Qe2 h2 Ng1 e3 Bd2 Ne7 g8N Rh5 Nh3 Nf5 Qd3 e2 Nh6 Nd4 Ng5 Nb3 Qd5 b4 Na3 b1Q Qf3 Qc2 Ne6 Rf5+ Kg7 Qb6 d8N Qa7+ Kg8 Bd7 Nb5 Be8 Bg2 f1Q Qe4 Bh5 Nhf7 Qf3 Nb7 Qfc3 Ra2 Na1 Nfd6 Qa3 Bc3 b3 Bb2 Rd1 Bh8 e1Q Bg7 Rdd5 Nbd4 Rde5 Bh6 Qed2 Rd1 h1B Qe3 Qdb4 Be4 Qbb6 Rb2 Qc7 Rbb1 B1f3 Rh1 Qd7 Rbe1 Bg2 Rh4 Bh1 Rg4 Qc8+ Ned8 Bf3 Rg7 Bh1 Bd5 Be4 Bf7 Nd7 Re2 Nb6 Bg6 Nd5 Re1 Nc7 Re2 Ne8 N8e6 Rb8 Qc1 Ra8 Qh1 Rb8 Qh4 Nc7+ Qd8 Qd7 Qe8 Rd8 Qf8 Qc8 Re1 Ne8 Qe7 Nc7+ Nf8 Bh1 Qh4 Rd5 Re8 Be4 Nfe6 Rde5 Qe7 Rxe8+
2kb4/1n1RQqP1/p1q1Np2/2Nb1Pq1/3Pb2R/1np2b1B/8/NK1rN1r1 w - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 b5 axb5 g5 b4 cxb3 d3 gxh4 Kd2 e5 Kc3 e4 Bd2 e3 Ra5 exd2 Ra3 Be6 Ra1 Bc8 Kb2 Kd7 g4 h5 f4 c5 e4 h3 g5 h4 b6 c4 b7 a6 g6 h2 g7 h3 f5 Be7 e5 Nh6 Ra3 c3+ Ka1 b2+ Ka2 Nc6 Bg2 Nd4 Qf1 d1B Nd2 b1B+ Ka1 Bf3 b8N+ Kc7 e6 Bcb7 Qf2 Bbd5 Qe2 Kc8 Ra5 f6 Nc4 Qf8 Na3 Nf7 Nd7 Nd6 Nc5 Qf7 Nc2 Bd8 e7 Nb7 e8N Rh6 Nc7 Rg6 Qe7 Rg5 Nb4 Bc2 N7e6 Nb3+ Ka2 Rg3 Bf1 Rb8 d4 Bce4 Ne2 Rg1 N2f4 Ra8 Bg2 Rb8 Nc2 Rd1 Re1 h1Q Na1 h2 Bh3 Qg1 Ng2 Rd3 Kb1 h1Q Rc1 Qe3 Ne1 Qg5 Rb5 Qh2 Rb6 Qc7 Rd6 Qc6 Rd7 N7a5 Qd6 Rb6 Rc2 Nb7 Qe7 Rb5 Rf2 Ra5 Rf1 Ra2 Rh1 Rg2 Bg4 Rg3 Rh4 Rg1 Bh3 Rd1+
3Nr3/n3kP2/1K4bb/pq3pPR/q1pR2BR/P6b/3Qr2n/B3r1Rr w - - 0 1 legal: proof: e4 d5 h4 g5 c4 gxh4 b4 c5 bxc5 dxc4 f4 Nh6 e5 Ng8 e6 fxe6 f5 Qd6 Nh3 Qb6 Ng1 Qd8 f6 Bg7 Na3 Qb6 Nb5 Bf8 Nd4 Qd8 Nf5 exf5 Ke2 e5 Ke3 h5 d4 b5 g4 a5 c6 e4 d5 h3 Kd4 h4 g5 h2 d6 b4 Kc5 h3 c7 e3 a3 e2 Qc2 e1R Bf4 b3 Bg2 b2 Qf2 b1Q Qa2 Nc6 Qe2+ Be6 c8R Na7 Qd2 Bf7 Ne2 Bh6 Be5 Bg6 f7+ Kd7 Nd4 Nf6 Bb7 Ng4 Ne6 Qe8 Bf3 Qd1 Bc3 Qa4 Kb6 Rh7 Rg1 h1B Nd8 Nh2 Bg4 Bg2 Rc1 Rh8 Ba1 Qe5 Rd1 Re8 Rh1 Re2 Rdg1 Qd5 Rc6 Re1 Rc8 R8e2 Nb7 Nf3 Qf4 h2 Rh8 Rae8 Qd2 Bf8 Rh5 Ke6 d7 Bh6 d8R Ke7 Rd6 Bf1 Nd8 Qdb5+ Kc7 Bg2 Rd4 Bf1 Rg3 Bg2 Rg1 h1R Rgh3 Nh2 R3h4 Qd5 Kb6 Bh3 Rf4 Qe5 Rd4 Qeb5+
1R1b4/2p1n2b/3P1q1q/1r1p2R1/2NkB2P/NQ3p1R/3r1Pb1/q1nK1R1b w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 d6 e6 d3 Qe7 d4 Qd8 g4 h5 d5 hxg4 Be3 exd5 Bg5 Be6 Bc1 Bc8 h3 Nc6 Bf4 Nb8 Bh2 g3 Qc2 gxh2 Qa4+ Qd7 Qd1 Qd8 e4 Kd7 a4 Ke6 e5 f5 a5 b5 a6 g5 a7 f4 h4 f3 Qa4 b3 Qf4 g4 Ra3 g3 Nd2 g2 Bd3 b4 Kd1 b2 Qe3 b1B Ba6 b3 Nc4 b2 Qf4 Bh7 Qh6+ Qf6 Qg5 b1Q+ Kd2 Nc6 Ra1 Be7 Ne2 g1Q Qe3 Qgg7 Qb3 Nb4 Nc3 Bd8 Nb5 Nd3 Nba3 Nc1 Kd1 Qgh6 Bb5 Rb8 a8R Ne7 Be8 Kf5 e6 Ke4 Bg6+ Kd4 Be4 Rb5 Rb8 Re8 Rf1 Qa2 Rb1 h1B Ra1 Ng6 e7 Bh3 Rb1 B3g2 Ra1 Rg8 e8R Ne7 Rb1 Rg6 Rg8 Rg4 Rg5 Qa1 Rg1 Bf1 Rg3 Bfg2 Rh3 Rf4 Rb2 Rg4 Re2 Rf4 Re1 Rg4 Rf1 Rf4 Bc2 Re4 Bb1 Re2 Be4 Rd2+
1B5k/nnrqP1bP/BK1q3n/3pp3/4PRn1/1N1np2b/2QR2R1/4q2R w - - 0 1 legal: proof: g4 b5 e4 c5 d4 cxd4 Nc3 h5 Nd5 hxg4 Ne3 dxe3 b4 a5 f4 axb4 f5 e5 Qd6 Ra6 Qd1 Re6 fxe6 Bb7 Nh3 Ba6 Ng1 Bc8 Ke2 d5 Kd3 g5 h4 f5 a4 b3 c4 f4 a5 b4 e7 Kf7 h5 Kg7 a6 b2 c5 b1Q+ Qc2 g3 a7 b3 a8R g2 c6 b2 c7 g4 R8a7 f3 Kc3 g3 Kb4 f2 Ka5 Na6 Bd2 Nc5 Ra3 Nh6 Ra6 Qd6 Rh3 Nb7+ Kb5 Qe1 Ra8 b1N Nf3 g1N Ba5 g2 Bb6 Ne2 Ra2 g1Q Nd4 Nc1 Ba7 Nd3 Bb8 Qg4 Nb3 Kh7 R8a6 Bg7 Rh1 Qgd7+ Rc6 Na3+ Kb6 Nb5 Rb2 Nf7 h6 Na7 Be2 f1N Ra2 Qg6 Rf6 Nh2 Bf1 Ng4 Be2 Nb4 Ba6 Nd3 Rb2 Rd8 Ra2 Kh8 h7 Nfh6 Rb2 Nc6 Rf4 Qgd6 Ra2 Qe8 Rb2 Bd7 c8R Na7+ Rc6 Rc8 Ra2 Rc7 Rb2 Qa3 Rg6 Be6 Ra2 Qd7 Rb2 Nf6 Rg2 Bh3 Qc6 Nfg4 Rbd2 Ngf2 Qc1 Nfg4 Qc2 Qad6+
1Nq4n/1b1r2K1/q1rn1p1R/p2rNP2/6n1/PB1RQPN1/2p2r2/kN5q w - - 0 1 legal: proof: h4 g5 c4 gxh4 d4 b5 e3 bxc4 d5 Bh6 d6 Bf4 Bd2 Bxd6 Bc3 Bf4 Bg7 c3 Bf8 Kxf8 exf4 Ke8 Ke2 a5 Kf3 e5 Ke4 Ke7 Kf5 c5 g4 h5 b4 d5+ Kg5 d4 f5 f6+ Kg6 Kd6 f3 Kd5 a3 c4 g5 e4 b5 h3 b6 h4 b7 h2 Nd2 e3 Ra2 h3 Bd3 e2 Qa4 e1Q Kf7 c2 g6 c1R g7 c3 Rb2 Ne7 g8N Ra7 Bf1 d3 Qc2 Kd4 Rb1 Nd7 b8N Nb6 Na6 Rd7 Qa4+ Nc4 Rb5 Bb7 Nc5 Qe6+ Kg7 Ng6+ Ne7 Qc8 Nde4 d2 Bd3 d1R Qb3 Qa6 Bf1 Nd6 Nd2 c2 Qe6 Kc3 Nd3 Rf8 Rb4 Nh8 Ne5 Re8 Rd4 Kb2 Bc4 Ka1 Bd5 Rb1 Bc4 Rb6 Ne2 Rc6 Nb1 Rd2 Bd5 Red8 Ng3 Re2 Rd3 Rf2 Rc1 h1N Bb3 h2 Re1 Rcc7 Re4 Rc6 Rh4 Rf1 Rh6 Nf2 Ng4 h1Q Qe3 Ng6 Ne5 Ng4 Bc4 Rf2 Bf7 Rc5 N7c6 Nh8 Nb8 Rd5 Rd4 Rc7 Rd3 Rc6 Be6 Rdc5 Ba2 Rd5 Bb3 Rd7+
b1B2nB1/pn3q1P/k1qPR3/1p3Qb1/2R1N3/q4Pb1/p4r2/n1BB2Kb w - - 0 1 illegal: No proof kernel
2b4N/n2Pk1bP/BP3R1R/N1r1bpp1/N4b2/2Npb1Q1/1K4b1/2nq1n2 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 f5 d5 f6 d3 Ra2 d4 Ra1 gxf6 Bh6 f5 Bc1 f4 g4 a5 g5 h6 g6 Bh3 Be3 Be6 Bf2 Bc8 Bh4 Ra7 Bf6 Rd7 Bg5 Rd5 exd5 hxg5 Kd2 e5 Kc1 f5 h4 a3 b4 f3 c4 d2+ Kc2 e4 c5 e3 d6 a2 g7 e2 h5 e1B h6 f2 b5 a4 c6 a3 b6 Nf6 g8N Ne4 h7 Bg7 c7 Ng3 Rh4 Nc6 Ba6 f1N Nc3 Na7 Na4 Bf2 Rh6 Ne2 Ne7 Nc1 Nc6 Be3 Ne2 Bf4 Rb1 a1B Qe1 a2 Rf6 Bb2 Na5 a1B Qh4 Ba3 Qe1 Bc5 Qg3 Rg8 Rb3 d1B+ Kb1 Bb2 Nec3 Bf3 Rb4 Bg2 d7+ Ke7 Rc4 d3 Rh6 Bce3 Rcc6 Qe8 Rcf6 Ba3 Ka1 Bad6 Kb2 Bde5 Kb1 Qh5 Kb2 Bcb7 c8N+ Kd8 Qh4 Qd1 Nd6 Bc8 Nf7+ Ke7 Nh8 Re8 Qg3 Rf8 Rd6 Rf6 Rc6 Rd6 Rf6 Rd5 Rh6 Rc5 Rce6+ Kf8 Ref6+ Ke7
1bR3q1/pbRPB1p1/b2r1Pp1/2r3Bb/4nP2/1NB1qr2/B4kr1/KQ6 w - - 0 1 illegal: No proof kernel
1N2rkrB/1B4R1/prQPp3/2Pn2Rb/K1P1q1p1/R2p4/1b3n1R/5q1q w - - 0 1 illegal: No proof kernel
N5r1/1n1PpN2/2p1R3/1bQ1NknP/b3pbpP/b3r3/1B2b1B1/qK2N3 w - - 0 1 illegal: No possible last move
1r2n2n/1q2pP2/kbp2NK1/N2p4/Q2NP2B/4p3/bBnb1PN1/4R1rb w - - 0 1 illegal: No possible last move
r1r3q1/pK3RPP/2qkBq2/Bp1B1q2/1N1q4/P1n1p3/2R2np1/1BQ3b1 w - - 0 1 legal: proof: f4 d5 e4 dxe4 g4 c5 b4 cxb4 c4 g5 d3 Be6 c5 Bc4 dxc4 h6 Nd2 gxf4 Ndf3 h5 g5 Qd5 Ne5 Qd8 Ng4 hxg4 Ke2 f5 h4 b5 c6 e5 c5 Ke7 c7 f3+ Ke3 g3 c8B f2 c6 g2 a3 f4+ Ke2 e3 Kf3 e2 Ke4 e1Q+ Be3 f3 h5 b3 h6 b2 h7 b1Q+ Bd3 f1Q c7 f2 g6 Qd2 g7 Nd7 Kd5 e4 Kc6 Qbc2+ Kb7 Nh6 Qc1 Ng4 Ne2 Kd6 Ra2 Nb6 Nc3 Na4 Nd5 Nc3 Bb6 e3 Bg6 Qd4 Nb4 Be7 Bgf5 Qg8 Bce6 Bh4 c8B Bg3 Be4 Bh2 B6d5 Bg1 Bce6 Qfd3 Bg6 f1Q Ba5 Qff6 Rh4 Nf2 Rf4 Q3c4 Rf3 Qcf5 Re2 Qh5 Bb1 Qhf5 Rc2 Qb8+ Ka6 Rc8 Rf4 Qbc7 Rf3 Qcd8 Kb7 Qg8 Ra2 Qfd3 Nc2 Qg5 Rf7 Qgf6 Nb4 Qdf5 Rc2 Qc6+
1b5K/n3p2P/QNrPNn1r/1R3pR1/1n2pBpp/qn3PR1/2R5/k2b4 w - - 0 1 legal: proof: b4 c5 a4 d5 e4 b5 axb5 cxb4 Qf3 dxe4 Qg4 Bd7 Qd1 Bc8 h4 Nd7 g4 Nb8 g5 Bh3 g6 hxg6 Nc3 Bg4 Nb1 Bc8 h5 Kd7 h6 Ke8 Be2 Qd3 Bf3 Qd8 Bh5 gxh5 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 c4 a5 b6 a4 b7 a3 d3 a2 c5 b3 c6 h4 c7 b2 Qe2 Ra6 Rh3 Rc6 Bf4 Bg4 c8R f5 Rg3 Na6 b8R Nf6 Kg6 Qd6 Na3 Kc3 Rb5 b1N Nc4 Nb4 Nh3 Na3 Rag1 a1N Nb6 Nb3 d4+ Bf3 Qc4+ Kb2 d5 Bd1 f3 Ka1 Ng5 Qc5 Kf7 g6 Qe2 Bg7 Ne6 g5 R1g2 Rh7 d6 g4 Rg8 Qc3 Qc4 Qd3 Rc2 Rh8 Rd5 Nb5 Rc5 Na7 Rb5 Qe3 Qd3 Qc1 Qe2 Qa3 Qf1 Bf8 Rg5 Bg7 Qd3 Ne8 Qc4 Bd4 Qe2 Nf6 Kg7 Rf8 h7 Rg8+ Kf7 Rg6 Qd3 Rh6 Kg7 Be3 Kh8 Bd4 Na8 Bb6 Qe2 Bc7 Nb6 Bb8 Qc4 Na2 Qa4 Nb4 Qa5 Nh5 Qa6 Nf6
8/1pp1qn1P/2b1p1B1/1P1pPQ1B/Kr2n3/b5qN/2bRp1k1/1B1B1Rq1 w - - 0 1 illegal: No proof kernel
2r5/3q1Bqq/1RR1Q1P1/1K2q2k/1B1np2P/NqrnPb2/nR5q/1b2b2R w - - 0 1 illegal: No possible last move
1NrNr3/P3pQRq/8/P1n1P1Br/1nb2n2/q1b5/1n1R2b1/nRRK1kn1 w - - 0 1 illegal: Other
1N4n1/Bq1q1nk1/1r2B1nN/Kn4p1/1Pr2R2/PNn3N1/bQ3qPr/3n2b1 w - - 0 1 illegal: No proof kernel
1Q2br2/Pb1qn1nK/1N1B2Nq/p1P2R2/b2n2r1/6N1/P2bb1k1/2br1N1R w - - 0 1 illegal: Other
r2B1Nb1/q1pn4/2Nr4/2q2bb1/QbrPkn2/P1b3K1/1NP1B2r/1N1r2R1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 a3 hxg4 b5 f5 Ra2 f4 Rb2 a6 Rb3 axb5 Rc3 b4 Rg3 fxg3 f4 Kd7 h4 Ke6 d3 Kf5 h5 g5 h6 e5 h7 b5 Rh6 e3 Rb6 e4 Bb2 b3 Nh3 g2 Qe2 g1Q Bc3 g3 Bb2 g2 Qd1 g4 Qe2 g3 Qd1 b4 Rh6 e2 Ba1 b2 Rg6 b3 Ra6 Nf6 Ng5 Qe7 Re6 Bh6 Nd2 b1B Bd4 b2 Rc6 Nd5 Rb6 Nd7 Rg6 Ba2 Nh3 b1R Bc3 Rb6 Nb1 Bg5 Bf6 Qec5 Bd8 Rd6 Nf2 Qa7 Qd2 Bc4 Nd1 Qgc5 Qc3 g1R Qb3 g2 Qa4 Rh1 Rg8 g1R Nb2 Rh2 Rg7 Re8 h8N Re5 d4 Ba2 Kd2 e1B+ Kd1 e3 Ng6 Bc3 Ne7+ Ke4 f5 Nf4 f6 Bb3 Nc6 Bg8 f7 Rgh1 f8N e2+ Kc1 e1B Kd1 Bb4 Be2 Bec3+ Bf1 Rd2+ Ke1 Rd1+ Kf2 Rh2+ Kg3 Red5 Ne7 Rc6 Be2 Rdd6 Rg6 Qca5 Rg7 Rc4 Nc6 Q5c5 Rh7 Rf2 Rh1 Rh2 Rg1 Nf6 Na5 Bf5 Nc6 Nd7
1b1B2N1/1nrbN1nq/k1B5/qr3rn1/Q3p1q1/PqB3PR/r1q1PB2/2K5 w - - 0 1 legal: proof: c4 a5 f4 h5 b4 axb4 a3 g5 g3 gxf4 c5 h4 Ra2 h3 Rc2 d6 Rc3 dxc5 Rf3 c4 Rf2 Qd7 Rg2 hxg2 Nf3 Qd6 Ng1 Qd8 h4 Kd7 d4 Kc6 Kd2 Kb5 h5 e5 h6 c5 h7 f5 d5 c3+ Kc2 b3+ Kd3 b2 Kc2 f3 d6 e4 d7 c4 Rh3 f4 Rh5+ Ka6 Rh1 b5 Bd2 b4 Bc1 f2 Rh5 f3 Bg5 Bd6 Be3 Nf6 Bh6 Rf8 h8B Nc6 Nh3 g1N Ng5 Rb8 Rh3 Nh5 Ne6 Rf5 Bg2 f1R Bf8 f2 Qd4 Rbb5 Bh6 Bb8 Qe3 Na5 Qd2 Nf3 Rh2 Ng5 Nf4 Ng7 Bf3 Nb7 Rh1 Qa5 d8B Bd7 Qe1 b3+ Kd1 Rg1 Rh4 f1Q Bg2 Qf3 Ng6 Qg4 Rh3 Rh1 Bf1 Rg1 Qd2 c2+ Ke1 c3 Ne7 c1Q+ Qd1 c2+ Nc3 b1Q Ng8 Qcb2 Kd2 c1R+ Qc2 Q2a1 Qd1 b2 Qa4 Qaa2 Bg2 Qe6 Bf3 Qh5 Bg4 Qhg6 Bh5 Qh7 Bg6 Qba2 Be8 Ra1 Kc2 Qac4 Kd2 Ra2 Kc2 Qb4 Nd5 Rgf1 Nde7 R1f2 Bf7 Qbb3+ Kb1 Qeg6 Bd5 Qh5 Bc6 Qg4 Bb6 R2f3 Bc7 Rc3 Bd8 Nf3 Be3 Ng5 Bd5 Rc7 Bc6 Ne8 Bc3 Ng7 Bc1 Qf7 Kc2 Qb3+ Kd2 b1Q+ Bb2 Qd3+ Kc1 Ka7 Be1 Kb6 Bf2+ Ka6 Bc3 Qdc2#
1q1QBBnq/1BRP4/K1p2r2/q2rq1bq/2P1rNr1/1BP3k1/3b3n/1N3b2 w - - 0 1 illegal: Other
r7/2p4P/b1q1PNQ1/q2NR3/1n1R3b/1rPRnR1r/2b2brn/K2B1k1q w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nh3 h4 Bf4 fxg6 Be5 g5 Ng1 g4 Bg3 hxg3 Kd2 Ke7 Kc1 Kd6 Kb2 Ke5 h4 Ke4 f4 Ke3 a4 Kf2 e4 d5 h5 b5 a5 g5 f5 g2 c3 d3 h6 b3 f6 g3 e5 d4 f7 b4 a6 d2 a7 g4 e6 d3 Na3 Nf6 Qb1 d1Q Ne2 g1B Nd4 g2 Rh4 d2 Qh7 g3 Qg8 Qd6 Qg6 Qh5 Rh2 d1N+ Kb1 b2 Bd3 Be7 f8R Ba6 Nf3 Nc6 Qf5 Ng4 Be2 Bh4 Nc2 Nde3 Qg6 Qa5 Rh1 Nh2 Bd1 Kf1 Ra4 Rh7 Ka2 b1B+ Ka1 b3 Nb4 Bc2 Nd5 Nb4 Rf5 Qc6 Re5 Nhg4 Rh3 Bf2 Ng5 g1R Ne4 g2 Rf3 Nh2 Rff5 Nd3 Nef6 b2+ Ka2 b1R Rf3 Rb3 Ka1 Rg8 a8R Nb4 Rd8 Rhh8 Ng4 Rh1 h7 g1Q Rd6 Ra8 Ngf6 Rhg8 Qf5 Rg2 Qg6 Nhg4 Rd7 Rh3 Rd8 Na2 Rd4 Qh1 Rb8 Nh2 Rbb4 Qc4 Rd3 Qc6 Rbd4 Nb4#
Nr6/3nnPrp/bQ1n1bPP/7k/r6B/rR3N1R/nb1KN1N1/1n2nq2 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 c5 Bd3 cxd4 Bc4 g6 Be6 fxe4 f5 Nc6 f6 Nb8 Bf5 gxf5 a4 Kf7 g4 Kg6 c4 d5 h4 b5 f7 e5 a5 b3 c5 b4 g5 b2 c6 e3 c7 e2 a6 f4 a7 b3 Qd3+ e4 Na3 b1N Qd1 f3 Qc2 d3 Qb2 d2+ Kf2 d1N+ Ke1 d4 Qc2 b2 Rh2 d3 Bf4 Kh5 g6 Be7 Nh3 Ndc3 Qc1 d2+ Kf2 e1B+ Ke3 d1R Bh6 f2 Ra2 f1N+ Kf4 e3 Kf3 e2 Ng5 Ng3 Ke3 Bf6 Nc2 Nd7 Nf3 Rd4 Bg5 Ra4 Ra3 Nge4 Ncd4 Na2 Rh3 Bc3 Qg1 e1N Ne2 Ne7 Rb3 Ba6 c8N Nd6 Nb6 Rg8 Nd5 Rg7 Qf2 Rb8 a8N Qc8 Qg1 Qc4 Qf2 Bce5 Qg1 Nbc3 Kd2 b1R Qb6 Ra1 Ne3 Nd1 Ng2 Bb2 Qc7 Ndc3 Qb6 Kg4 h5 Ra3 Nc1 Qf1 h6 Ra4 Bh4 Kh5 Qb7 Nb4 Qb6 R1a3 Ne2 Nba2 Qe3 Ned5 Qf2 Ne7 Qb6 Nb1+
2n5/1bnK1n1R/1n2r2P/1q2N3/RN1PN1p1/nk1b2P1/b4Qqn/1B1rb1N1 w - - 0 1 illegal: No possible last move
b5N1/qNq1rn1p/q2nr2P/3R2KQ/q4R1N/1B1n3p/1P1PqN1k/5rb1 w - - 0 1 illegal: No proof kernel forced: bxDB
2B1rrNR/n6N/1KPq4/3Bb1Bk/p2pnQnq/1n3B2/P3P3/nrbb4 w - - 0 1 illegal: Other
1k4r1/bP4Bn/5rB1/Qbb1P3/1b1BpNK1/r3P3/q1n1pbR1/BR3b1b w - - 0 1 illegal: Other
q1NnQ1R1/1b3r2/2nB4/k1N2K2/b1P2NpN/P3p1Pr/2nrq1bb/3Bq3 w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 h5 Bg5 fxe6 Bd2 e5 Bc1 e4 f3 h4 g3 h3 Nd2 Nh6 Rb1 Qa5 Rb3 Qd8 Re3 Ng8 Re2 Nh6 Rf2 Ng8 Rg2 hxg2 Kf2 g5 c4 b5 h4 e5 a3 d5 f4 Kd7 f5 Kc7 h5 Kb6 f6 b3 f7 g4 h6 e3+ Ke2 d3+ Ke1 e4 h7 b4 Ne2 g1Q Rh2 d4 Rh5 b2 Ra5 b1B Nc3 e2 Qb3 Bc2 Na2 Nh6 Rh5 Nc6 Nb1 Ra7 Kd2 e1N Bg2 Bc5 f8N Bb7 Qa4 b3 Rh3 b2 Nb4 Nf7 Nc3 b1B Na6 Qa8 Nb5 Nfd8 Ne6 Bb3 Rh5 Nc2 Bf3 Qh1 Bd1 Qg1 Qb4 Ba4 Nf4 Qf1 Qb3 Ka5 Rg5 Qg1 Rg8 Bb6 Bb2 Qe1+ Kc1 Qe2 Nd6 Qe1 Ba1 d2+ Kb2 d3 Kc3 Bf2 Nc5 e3 Nc8 Bg1 Bb2 Bh2 Ba1 Ba6 Qb8 Rf7 Qe5 Bb7 Qe8 Qe2 Rg6 Rg8 h8N Rgg7 Bb2 Rh7 Rg8 Rh3 Nhg6 Qe1 Nh4 Qe2 Ba1 Qe1 Bf3 Qe2 Bb2 d1Q Ba1 d2 Bb2 Qee1 Kd3 Qde2+ Ke4 d1R Be5 Rd2 Bd6 Re7+ Kf5 Rf7+ Kg5 Qg2 Bd1 Qge2 Nhg2 Na1 Nh4 Be4 Nhg2 Bf3 Nh4 Nc2 Kg6 Bg2 Kg5 Rc7 Kf5 Rf7+
b5rQ/3nr1RK/2nBB1nN/2p5/P1Bb2b1/1PqRp1b1/2k1Pq2/1qr2B2 w - - 0 1 illegal: No proof kernel
1b1Nb2r/3q3B/r1bR3B/n1KP2q1/n3Q1NN/1kNp1Pnp/3Pn1q1/r7 w - - 0 1 illegal: Other
1bB1nnrr/nb1rB1P1/2k1b3/1q1N1pR1/q2Kp2N/Q3PB2/2B2P2/2b2q2 w - - 0 2 legal: proof: d4 c5 b4 cxd4 a4 a5 h4 axb4 Be3 g5 Bc1 gxh4 Ra3 bxa3 Kd2 f5 Kd3 e5 c4 b5 g4 h5 c5 d5 e3 Kd7 g5 h3 a5 h4 a6 h2 g6 b4 a7 a2 g7 a1B Qg4 b3 Na3 b2 Ne2 b1N Bh3 Bd6 Rd1 h1Q Nc2 Kc6 Ng3 Nf6 Qf3 Nbd7 Qh5 Ne8 Qf3 Qa5 Bf1 h3 Bg2 h2 Qf4 Bb8 Ne2 Nc3 Qe4 Nf8 Bf3 Bb2 Nf4 Nb5 Ne1 Be6 Bd2 Bc1 Neg2 Qe1 Bb4 h1B Nh4 Qf1+ Kc2 Qa6 Qd3 Rg8 Qa3 d3+ Kb3 d2 Be4 Bg2 Bc2 d4+ Nd5 d3 Kc4 Qa4 Re1 Qe2 Rh1 d1Q Rg1 Be4 Rg2 Qdf1 Rg5 d2+ Bd3 Nbd6+ Kc3 d1R Bc2 Kb5 c6 Nc8 c7 Kc6 Bc5 Qeb5 Be7 Kd7 Nb4 Bb7 Nd5 Kc6 Nf3 Nb6 c8B Rh8 Nh4 Rg8 Nf6 Rd7 Nd5 Rh8 Rg2 Nf6 Rg3 Bc7 Rg5 N8h7 Nf3 Rb8 Nh4 Ba8 Ba6 Rbg8 Bd1 Bb8 Bc2 Nf8 Nf4 Nc8 Bb7+ Kc7 Bf3 Bc6 a8B e4 Bb7 Na7 Bc8 Bb7 Nd5+ Kc6 Bb3 Qaa5+ Kd4 Ne8 Bc2 Qaa4+
1q2QBr1/nk5r/q4Bp1/RqbKn3/B1P1p3/nrnbB3/2P2NP1/1R4b1 w - - 0 1 illegal: Other
nBn3bR/Rr4Q1/5PbB/B3p1n1/3PPn1k/Nn1p2r1/1K4Bb/1q2rb2 w - - 0 1 illegal: No proof kernel
2R1Rb2/1N1b1Bb1/2prP3/2N2p2/1Pb3R1/2q2P1b/3nrqqb/1Q1K1knR w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 h4 dxc4 d5 g5 Be3 gxh4 Bc5 e5 Bd4 exd4 b4 Ke7 e4 Kf6 g4 Ke5 g5 Kf4 e5 a5 d6 h5 g6 f5 d7 a3 g7 d3 f3 Kg3 Bg2 c3 Qd2 a4 Nh3 c2 Nf2 c1Q+ Qd1 h3 Ra2 h4 Ra1 d2+ Ke2 a2 Qc2 d1B+ Ke1 h2 e6 Ra6 Nd3 a3 Nf2 h3 Rg1 h1Q Qc4 h2 Qf1 Nc6 Qb5 Be2+ Nd1 Nf6 Qb7 Nd4 Qc6 Ne4 Qc4 Qh4 d8R Rd6 Re8 c6 Qd3 Qc3+ Qd2 Bc4 Nb2 Ne2 Na4 Rh5 Kd1 Kf2 Qd3 Rg5 Nd2 Rg6 Re1 Qg1 Bf1 h1B Nb3 Rg2 Na5 Rh2 Nb7 Bd7 Rc8 Qhg5 Bh3 Bg2 Bg4 Bh3 Bh5 Q1g3 Rh1 Qg6 g8R Ng1 Rg7 Kg2 Re8 Kf2 Qd2+ Kf1 Ree7 Re2 Qd3 Qf2 Re8 Qgg2 Rb1 a1B Rb3 a2 Bf7 Nd2 Ra3 Qf6 Rg4 Be5 Nac5 a1B Raa8 Bh2 Rac8 Q6d4 Qc2 Qd3 Qb3 Bag7 Qb1 Qc3
B3KN2/1pnBnB1P/1bn1b2n/2Qr2q1/1Pnp1n1k/6Rq/1P1r1R2/B6b w - - 0 1 illegal: Other
3NR3/2qqq2P/1p3nn1/1RbRP3/1nK2R1Q/1P4q1/rrq3pq/BN1b3k w - - 0 1 illegal: No extended proof kernel
b2N1kq1/nnK2B1q/1QBq4/1q2BP2/rbB2b1R/Nr3p2/P2p1P1q/7b w - - 0 1 illegal: Other
k1qNq1K1/1R2B1bQ/b3R3/5P2/2q1rp1b/P1Nb1N1r/3p1PnN/q5bn w - - 0 1 illegal: Other
1Q4r1/q2rRP2/3KPR1p/R3p2P/q2Br3/n6N/Bn1b1b2/1bkn1Rbn w - - 0 1 illegal: No proof kernel
Bn1B4/b1Pn1Pn1/2bbbB2/2p1rk2/R1Qrp3/K3Pr2/B3qq1r/4NR2 w - - 0 1 illegal: No proof kernel
qB6/pB1pr1rn/3bQq2/P2n3k/Pnq5/1P3nR1/1KR1br2/1NB1qB2 w - - 0 1 illegal: Other
n1r4N/7b/1bRP1rpk/nnrn1p2/q1N4N/Bq3QNP/R2K1P2/q3q3 w - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 d5 h5 d6 hxg4 Bg2 e6 Bd5 exd5 a4 c5 e4 b5 h3 b3 a5 b4 e5 b2 a6 c3 e6 g3 e7 g2 a7 d4 Qc2 d3 Qd1 d2+ Ke2 b3 Rh2 c2 Ra4 c4 Qf1 d1N Ra3 c3 Be3 c1N+ Ke1 c2 Ra6 Nc3 Bh6 Nd7 Qb5 Qa5 Nf3 g1Q+ Kd2 Nf6 Rc6 Qa4 Qe2 Qe1+ Ke3 Nb6 Rg2 Bf5 Nh4 Rc8 a8N Nfd5+ Kf3 Bh7 Qd3 f5 Qe3 Kf7 e8N g6 Na3 b1Q Nac7 b2 Rg1 Qa1 Ne6 b1Q Nc4 Be7 N8g7 Qbb3 Nh5 Bd8 Ng3 Nb5 Ng5+ Kg8 Rh1 Na8 Nf7 Bb6 Bg7 Rf8 Bb2 Rc8 Ba3 Kg7 Rf1 Rhf8 Nh8 Rf6 Qd3 Kh6 Rg1 Qe7 Rd1 Qe1 Rd2 Ne2 Qc3 c1R Ra2 Rc2 Qd3 Nc1 Qc3 Qbb4 Qd3 Nb3 Qe2 Na5 Qe4 Rc1 Qg4 Qg1 Ke2 Qbb3 Kd2 Rc3 Qf3 Qgb1 Ne5 Rc5 Nc4 Qe1#
1b1nbN2/PP1pNrqB/4r3/r1B1nn1R/3P2p1/1kq4r/b3BK2/4QBb1 w - - 0 1 illegal: No proof kernel
2Nn1QNr/1n1Kp2b/b1r3q1/kB1R1P2/3NP2B/3Pb3/r4n1p/b2r1nN1 w - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 f4 h6 gxh6 Ra2 h5 Ra3 h4 Re3 fxe3 Ke2 Kd7 Kf3 Kc6 Kf4 Kb6 Ke5 c5 f4 h5 g4 h3 d3 h4 f5 b3 g5 c3 g6 b2 g7 h2 Ne2 c2 Bd2 c1B Qe1 h3 Ng3 c4 Nc3 b1N Nge2 Nc6+ Kf4 Qd6+ Kg5 Ka5 Nd4 b5 Nd1+ b4 Kg4 c3 Nb5 e2 Qh4 e1R Nd4 b3 Qh6 b2 Be2 Qg6+ Kf4 Nd8 Ke5 Nb7 Bg5 c2 Bh4 Nd2 Nf2 b1B Bd1 Ba2 Rg1 h1N Rf1 h2 Nh3 Bc4 Ng1 Bb2 Bh5 Rb1 Rc1 Nf1 Bd1 Nf2 Bh5 Qh7 Be8 Ba1 Bb5 Ra6 Qf6 Nh6 g8N Qg6 Qf7 Rb2 Rb1 c1R Qg7 Kb4 a5 Rc6 a6 Rd1 a7 Ka5 a8N Ra2 Nb6 B8e6 Nc8 Nf7+ Kf4 Nfd8 Ke5 Bed5 Qf7 Bh6 Qf8 Be3 Rc1 Bb3 Rc5 Bf7 Rd5 Bc4 Qg7 Qg5 Qf6 Bg6 Qf8 Bh7 Nd6 Nf7+ Ke6 Qg6+ Kd7 Nfd8 Nc8 Rc5 Ba4 Ba6 Bb5 Rc6
1bb4K/1B3p2/1NP1N2r/1pQR1NR1/3q2pn/nPb2N2/n4rP1/2kqr1q1 w - - 0 2 illegal: No proof kernel
3rB2r/1bR2qQ1/R2b3n/2Pb2p1/5pk1/1B1N1qqn/1pP2P1B/1r2nK1B w - - 0 1 illegal: Other
N2R4/1bPq4/pq3p2/Q1bqB3/1BKp1RnP/r4nn1/k3rP2/b1Br1B2 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 h5 a4 hxg4 Nd2 d5 Ndf3 dxe4 d5 bxa4 Nd4 cxd4 Kd2 Kd7 h4 Kd6 c4 Kc5 d6 Kb4 b3 e5 c5 g5 c6 g3 c7 f6 d7 e3+ Kd3 e2 Ra2 e1Q Qc2 a3 Qd1 e4+ Kc2 e3 Kd3 e2 Bg2 g4 Rh2 Nh6 Bf4 Nf5 Nf3 Bc5 Qa1 Qh1 Nd2 e1R Nc4 Rhe8 Nb6 Bb7 Be5 Nc6 Bf1 g2 Rh3 g1Q Rf3 g3 Rf4 g2 Rb2 Qb8 d8B a2 Be7 Ka3 b4 Ng3 b5 Rd1+ Kc4 Qh3 Bf8 Qgh1 Bh6 g1N Rb1 Qd7 Bg5 a6 Bh6 Ra7 Na8 Nf3 b6 Re6 Bd6 Re3 Be5 Rb3 Qc3 a1B Bg5 Ka2 Qa5+ Ra3 Rb5 Bd6 Rd5 Bc5 Bh6 Ne7 Rd6 Nef5 Bg5 Nh6 Rd5 Qc6 Rd8 Ng4 Bh6 Qc8 Bg5 Q8d7 Bh6 Bc8 b7 Qb6 b8B Rb7 Ba7 Qg2 Re4 Rb8 Bc1 Bb7 Rf4 Qdd6 Rd7 Re8 Rd8 Qd7 Bd6 Re2 Be5 Qb2 Bb6 Bd6 Bc5 Qb6 Bb4 Bc5 Be1 Nfh2 Bc3 Qgc6 B3d2 Nf3 Bb4 Qcd5#
2N4n/1rB1prkB/2qNPn1p/3bn1p1/Nn1bQ3/1NrR1n1b/3K1PP1/8 w - - 1 2 legal: proof: d4 a5 h4 c5 a4 cxd4 b4 axb4 h5 f6 h6 gxh6 Ra3 h5 Rg3 h4 Rg5 fxg5 e4 Kf7 c4 b5 c5 d5 e5 h6 a5 h3 a6 d3 a7 b3 c6 d2+ Ke2 h2 c7 d4 Qc2 d1B+ Kd2 b2 Be2 b4 Qc5 d3 Ke3 b3 Bf1 d2 Ne2 Nc6 Rg1 h1N Na3 b1N Qd4 b2 Qd7 Ng3 Qg4 Ne4 Nc4 Qd6 Qh4 Bh3 c8N Nb4 e6+ Kg7 Ne5 Bb3 Nc6 d1N+ Kf3 Ne3 Nc3 Ng4 Ke2 Rh7 Ke1 N8f6 Nb5 Ne5 Bd3 Bd5 Ncd4 Qc6 Nbd6 Nbd2 Nb3 b1R Ke2 Ndf3 Rd1 Rb8 a8N Rb7 Bf4 Rc1 Nab6 Rc5 Na4 Rc3 Nc4 Nd6 Bh2 Qa6 Qe4 Ndf7 N4d6 Qc6 Bc2 Nh8 Rd3 Kg8 Bg3 Rf7 Bf4 Nh4 Kd2 Bg7 Be3 Kf8 Bb6 Kg8 Bc7 Kf8 Bd1 Kg8 Bh5 Kf8 Bg6 Nhf3+ Ke2 Kg8 Bh7+ Kf8 Nab6 Nfg4 Na7 Nc4 Kd1 Bd4 Na4 Kg7 Nac8 Nce5 Ke2 Nf6 Kd1 Ne1 Kd2 N1f3+
1K5b/5Rq1/2p1P2n/1R1B1b1k/1QpNr1N1/nPb2R2/rpP3n1/2n1Rn1r w - - 0 1 illegal: No proof kernel
4R1r1/n3q1p1/b1N1R3/2pQnPbp/k2Pn1NN/1nP5/N1n1B1qK/1r4q1 w - - 0 1 illegal: No possible last move
Nb2Q2n/q1b1BR2/np6/1P1q2K1/1p2BP1R/r3B2b/1PBrp3/k1qb3b w - - 1 2 illegal: Other
3rNknn/Kpn5/2Qr3R/3r1Pr1/BPp1r1p1/Bqb1B3/1P1q4/3BRb2 w - - 0 1 illegal: Other
qn6/PbqNk3/qB1rb1p1/bQ1B1nP1/4b2P/3r1pR1/N1B1p3/KB2n3 w - - 0 1 illegal: No proof kernel
1qB4n/Q1Nq4/P7/2p1B2r/1b1p1nnb/1qPNkb1R/P3p2b/KNN4r w - - 0 1 illegal: Other
rn2N2N/6q1/p1q3pR/1RbN1r1B/1NPQ2b1/PKP2b2/2pn1q1q/2k2n2 w - - 0 1 illegal: Other
Q2R3n/3b4/pB1PNN1q/prpBr3/1n1b1r2/1Nqq1P2/P7/1KNnqk2 w - - 0 1 legal: proof: e4 d5 b4 g5 c4 dxc4 h4 gxh4 Na3 f5 Rb1 fxe4 Rb3 b6 Rd3 Bg4 Rd5 Bc8 Ra5 bxa5 g4 Kf7 d4 Ke6 Kd2 Kd5 Kc2 c5 f3 e5 b5 h5 b6 e3 g5 a6 g6 e4 g7 h3 b7 h2 Bg2 h4 Ne2 h3 Ng3 c3 Qd2 e2 Kb1 e1R Rg1 h1N Nc2 Kc4 d5 h2 Rf1 e3 Nh5 e2 Ng3 Nf2 Rh1 Nd1 Nb4 Nh6 g8N Bg7 Nc2 Bd7 Nf6 Nf7 Bf1 Rf8 Na1 Nh8 Nb3 Nc6 b8N Nb4 Nc6 Rb8 Ncd4 Rb5 Ne6 Rf7 Qg5 Kd3 Bf4 Rf8 Rg1 h1Q Bc7 Qh6 Bb6 Rf7 Qh4 Ke3 Qf4+ Kf2 Qb8 Rf8 Qa8 c2+ Ka1 Rf7 Rh1 Rf8 Rh4 Kg1 Rd4 Kf2 Bh3 Kg1 Bf5 c1Q+ Bb1 Qc4 Be4 Qc3+ Kb1 Rf7 Nh7 Rf4 Nf6 Rf1 Rd3 e1Q Ne2+ Kf2 Nec1 Kg1 Ne8 Bd4 Nf6 Rf2 Rd2 Kf1 Ng8 Bc6 Na1 Be5 Nab3 Re2 Nf6 Re3 Rg2 Qd7 Rg8 Qdh7 d6 Bd7 Rd8 Bd4 Bc2 Re5 Be4 Nc2 Bb7 Qhd3 Bd5 Nb4+
6r1/1nqP1N2/Q2Pbpp1/1K1R4/r2b1knp/2n1q2q/R2BnBP1/1b1B2B1 w - - 0 1 illegal: Other
q4bb1/QKpP1P1n/B1p3rn/3R1nbb/3R1q2/N1N3p1/1kPNr3/1N4r1 w - - 0 1 illegal: No extended proof kernel
1R1b4/2pb1r1q/1b1n1B2/KN1bNP1p/1N1b3q/bQP3n1/2p1PR2/N5kr w - - 0 1 illegal: No proof kernel
6b1/N1Kn2nR/k4PR1/2b2PBb/3QqppN/b1R1qP2/qrq2p2/4r1R1 w - - 0 1 illegal: Other
RrB5/2Bn2k1/1nQ1r3/r5n1/3b3p/1pPpB1P1/Rq1N2qP/1nBbK1r1 w - - 0 1 illegal: No possible last move, all moves rejected
4b1Q1/2NBB1NP/b1Rprpr1/nn6/P1KN1k1N/2pn1q2/1qPr1p2/b7 w - - 0 1 legal: proof: b4 e5 a4 a5 d4 axb4 f4 exd4 g4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 Kd2 Ke7 Kd3 Kd6 e4 Ke5 h4 b5 h5 c5 g6 b3 h6 d6 g7 c4+ Kd2 g3 Nh3 b4 Rh2 b2 Qg4 b3 Qg6 d3 Kc3 d2 Qg4 d1B Ng1 f3 Be3 f2 Bd3 Nf6 g8N Nfd7 Nh3 Nc6 Nd2 b1N+ Kb2 Bg7 Bg5 Nc3 Nf4 Nc5 Rh3 Na5 Ne7 Ba6 Ne6 Qf8 Nd5 Nb5 Ndc7 Re8 Nd4 Re6 Be7 g2 h7 g1R Qg2 Kf4 e5 Bh5 N2f3 Rg8 Bf5 Rd1 Nh4 Rd2 Rc3 Qa8 Bg4 Qf3 Bh3 Bf6 Bg4 Rg6 Bh3 Rh6 Qg8 Rg6 Bf5 Na7 Ka3 b2 Kb4 Nb5 Bh3 Bg7 Bf5 Ref6 Bd7 b1Q+ Rb3 Qb2 e6 Qc1 Rc3 Qa1 Bd8 Qc1 e7 Re6 e8N Qb2+ Rb3 Be5 Ng7 f6 Be7 Qa2 Nc6 Ba1 Nd4 c3 Rb2 Nab3 Kc4 Nd3 Rb1 Qb2 Rg1 Rh6 Rg5 Be8 Rc5 Rg6 Rc6 Na5#
bb1nN1nK/n1r1p1R1/Nk1p1p2/q1q1P3/1qBb3P/pB5B/3Q2rP/2B5 w - - 0 1 illegal: Other
K3n2r/R2QNN1r/1qqp4/pNpbb3/3Pn3/1PPp4/R2r4/Nn1kb2B w - - 0 2 illegal: No possible last move, all moves rejected
2rn4/P3r1RP/qp2R1B1/1N3pb1/p1qBn2k/q2R1Q1b/nPp2RK1/2b5 w - - 0 1 illegal: No proof kernel
2qn3n/4p1br/bP3n2/2p2B1Q/KRPR1b2/p2R1rbN/p4PR1/2N2k1r w - - 0 1 legal: proof: g4 d5 e4 dxe4 a4 h5 b3 hxg4 a5 f5 a6 f4 Bb2 bxa6 Bf6 a5 Bh4 a4 Bg3 fxg3 h4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 a5 b4 g5 b5 c5 b6 e3 h5 Ke4 h6 e2 d5 e1N h7 g2 d6 g3 d7 a3 Kb3 a2 c4 a4+ Ka3 g4 Rh6 Nd3 Rh2 Nf6 Qc2 Nc6 Nf3 g1B Qc1 g2 Nd4 g3 Nf3 Nde5 Qd2 Nf7 Qb4 Ba6 Qc3 Qc8 d8R Bg7 Rd3 Ncd8 Nbd2+ Kf4 Nb3 Ra7 Rh1 Bh2 Rad1 g1B Nc1 g2 Ng5 Bg3 Nh3+ Kg4 R1d2 B1h2 Qe5 g1R Rd4+ Kf3 Bd3 Kg2 Bf5 Rd7 R2d3 Kf1 Qd5 Rd6 Qe5 Rf8 h8R Rd5 Rh6 Nh8 Rg6 Bf4 Rg2 Bhg3 Rhh2 Rf7 Rh1 Rd6 Qd5 Re6 Qf3 Re3 Qh5 Rf3 Rb3 Be3 Rb4 Bef4+ Rd3 Bh4 Rhh2 Rh1 Rg4 Bhg3 Rg2 Bg5 Rd4 B5f4 Kb2 a3+ Kb3 Bf8 Ka4 Rh7 Rd7 B8h6 R7d4 Bg7
1R2r2q/npp2b1P/1n3rRb/1Pk3NK/1bp1p1B1/1Pn5/2N3N1/1n1Q1r1N w - - 0 1 illegal: Other
1B3nB1/p2np1k1/B3r1Nn/PrbBPqn1/r7/3Pp1pR/1Q4bb/4R1K1 w - - 1 2 illegal: No possible last move
1r5n/pNp1bQp1/P2B2p1/3n1n1N/1R3N1R/2PNP2r/3kb1r1/rq1b2K1 w - - 0 2 legal: proof: d4 b5 g4 e5 a4 exd4 a5 f5 Bg2 fxg4 Qd3 Bd6 Qg6+ hxg6 Bd5 Bc5 Bb3 Bf8 Ba4 bxa4 Kf1 Ke7 b4 Ke6 f4 Kf5 h4 Ke4 c3 d5 f5 a3 b5 g3 e3 Kd3 f6 a2 b6 Nc6 f7 Ba6 h5 Nh6 b7 Nf5 b8N Ne5 h6 Be7 f8Q Nf7 Ne2 g2+ Kg1 Rh7 Rh3 Nh8 Nd7 Qb8 Na3 Qb1 Qf7 Rb8 Nb5 Kc2 Nf4 d3 Nf6 d2 Rh1 d1N Nd6 d4 N6h5 d3 Rh4 d2 Ba3 Be2 Bc5 Kc1 a6 Nf2 Nb7 d1B Bb4 Kd2 Bd6 Qd3 Rc1 a1R Rb1 Ng4 Rb4 Qb1 Qg8 Nf7 Qe8 Rh8 h7 Nf6 Qd7 Rhc8 h8N Nd5 Kf2 g1R Qe6 Ng5 Nf7 Rh8 Ne5 Nf7 Ned3 Rh6 Qf6 Nh8 Qf7 Rg3 Rh1 Rh3 Kg1 Rh2 Nf6 R6h3 N6h5 Rf2 Rh2 Rhf3 Rh4 Rh3 Bc5 Rfh2 Bd6 Rg2+
2rb4/1pr2p2/1n1N4/B1Rr2B1/1Bpqn2K/bPB5/2pPbP2/1nQ1Nn1k w - - 1 2 illegal: Other
3n2R1/1R2rrn1/K4p1N/3b2P1/1pp2Bp1/kPNR3n/1q2qPQ1/n1R1n1b1 w - - 1 2 illegal: No proof kernel
8/1NP5/p2p3b/nr1qPn1k/K1pP1Bpq/2Nqq1r1/q1B5/BbR1QB2 w - - 0 1 illegal: No proof kernel
3r4/2p1Pr2/3pKB1B/1knP1Pr1/4R3/b1Bbq1pp/2qNB3/bNnbQ3 w - - 0 1 illegal: No proof kernel
4b1r1/bn2k1N1/Bpp3R1/1P3nP1/2pP1N2/N4K2/1prn1B1q/n1q1qQN1 w - - 0 1 legal: proof: b4 d5 a4 a5 c4 dxc4 f4 e5 h4 exf4 b5 g5 Ra2 gxh4 Rb2 Bb4 Rb3 Bf8 Rb4 axb4 Kf2 f5 d4 h5 g4 h3 e4 b3 g5 h2 a5 f3 e5 h4 a6 c6 a7 h3 e6 b2 e7 f4 Be2 Qd6 Qc2 Nh6 Qd3 Nd7 Na3 Nc5 Nb1 Nf5 Qd2 Bd7 Kf1 f2 Qd3 b6 Bf3 Nb7 Ke2 f1N Be4 f3+ Kf2 Nd2 Qe3 Nb3 Qd3 Na1 Be3 Qe5 Kf1 f2 Ke2 f1N Bf2 Nd2 Na3 Kf7 e8N Bd6 Qf3 Bb8 Ng7 Be8 Qg2 Qd6 Qf1 Ke7 Bd5 Rh4 Be6 Rf4 Bd7 Rf3 Bc8 Rc3 Qb1 Rc2 Qf1 Nb1+ Kf3 Qe6 Nh5 Qe1 Nf4 Nd2+ Kg4 Nd8 Ba6 Nb7 Bg3 Bc7 Bf2 Rd8 a8N Bb8 Nc7 Ba7 Nce6 Rc8 Ng7 Rd8 Nf3 Ra8 Rg1 h1Q Rg2 h2 Ng1 Qc1 Rg3 Qe4 Rh3 h1Q Rh6 Qee1 Rd6 Qh2 Rg6 Bd7 Ngh5 Rg8 Ng7 Nb1 Kf3 Be8 Bg3 Qed2 Bh4 Qde1 Bf2 Nd2+
1q6/1Bn1pNBN/r1pbb1Q1/1p2R2b/NPkP1n2/1bq1K3/P2p1r2/1r4N1 w - - 0 1 illegal: No proof kernel
3NQ1n1/1pR1P3/4R1BR/Kb1Pbqp1/2n3RN/p3n3/P2b1p1r/q3bkr1 w - - 0 1 illegal: No possible last move
K1r1nk2/Q4qnp/r2q1ppb/p1P1B2P/B3N3/3RBP1q/1B6/R1nb2n1 w - - 0 2 legal: proof: e4 c5 b4 b5 a4 bxa4 g4 d5 b5 dxe4 Nc3 Bxg4 Na2 Bf3 Nb4 cxb4 Bc4 Bg2 Bd3 Qd6 Bf1 Qd8 Ke2 e5 Ke3 a5 d4 b3 h4 g6 c4 f6 h5 a3 d5 b2 c5 b1Q d6 a2 b6 Na6 b7 Qb3+ Qd3 Bf3 b8B Bd1 Nh3 Ne7 Rg1 Nc7 Bd2 Ra6 Rg2 Qf7 Rg3 Bh6+ Ng5 Kf8 d7 Ne8 Rf3 Qb6 d8B Qd6 Bdc7 Rg8 Bc3 Rh8 Bb2 Nf5+ Kd2 e3+ Kc3 e2 Ne4 e1N Bh3 Qfd7 Kc4 Qf7+ Kb5 Nfg7 Bd7 Rg8 Qd5 Nd3 Qb7 Nc1 Qa7 Rh8 Rd3 Rg8 Rb1 a1Q Bc6 Qaa2 Ra1 Qae6 Bd7 Qh3 f3 Ne2 Be6 Rh8 Bb3 Ng1 Ba4 Qde7 Nc3 e4 Bf4 e3 Bbe5 e2 Ne4 e1N Be3 Qc7 Qb6 Qb8 Kc6 Rg8 Rd7 Qd6+ Kb7 Rh8 Qa7 Nd3 Ka8 Nc1 Rd8 Qde6 Rd2 Qd6 Rd3 Nc7+ Kb8 Ke7+ Kb7 Rc8 Bc2 Nce8 Ba4 Rc7+ Kb8 Kf8 Ka8 Rc8#
b1Nb1B2/rrB1R2P/R1pPpn1p/3p1B2/1Qq5/3nP3/rB1b3q/2r1k1K1 w - - 0 1 illegal: No proof kernel
4Bk2/b4P1p/rNNprRP1/5n1b/Q6R/rp1pp3/n2bPn2/1N2K1Nq w - - 0 1 legal: proof: g4 a5 h4 g5 b4 gxh4 d4 axb4 g5 c5 g6 cxd4 Be3 f6 Bg5 fxg5 f4 b5 c4 e5 a4 d6 f5 b3 a5 g4 f6 e4 a6 b2 c5 d3 c6 h3 a7 b4 c7 g3 Ra4 h2 Na3 b1R Nb5 g2 Kd2 b3 Nh3 g1B Qc1 Nc6 Rd4 Nge7 Nf2 Nb4 Qa3 Ra1 Nh3 Bg4 c8N Na2 Qa4 Bh5 Bg2 Nf5 Ne7 Qd7 Na3 Qc6 Nb1 Bh6+ Ke1 Kf8 f7 Bc1 Bf3 Bge3 Rg1 h1N Rf1 Nf2 Ng1 Re8 a8N Rg8 Nd5 Re6 Nb4 Qb7 Rc4 Ba7 Nb6 e3 Bc6 Rh8 Bb5 Qh1 Rf4 Nc3 Rd4 Ra3 Rh4 Na2 Be8 Ke7 Bb5 Ra8 Be8 Kf8 Nc6 Bb8 Qb5 R8a6 Qa5 Ba7 Qa4 Ng4 Rf4 Nf2 Rf3 Ng7 Rf6 Nf5 Qg4 R6a5 Qc4 Ra6 Qa4 Bd2+
1B3b1b/pR4pb/3R2Pq/4NQ1q/p1N1P1np/rp2rK2/PnR2R2/3nk3 w - - 0 2 illegal: Other
q2q1QKn/2b2Pbr/pp2b2n/PN5n/3p3k/NN1P1r2/p1N2pB1/RR6 w - - 1 2 illegal: No proof kernel
2k2bbb/P1rR2N1/p1rn2qN/2p3Pp/2N3nq/P3r3/1BpK1p2/1B1Q1N2 w - - 0 1 illegal: Other
1Q1N4/ppP1p1n1/b2N2BN/1rbbN3/pP1r4/1p2Pnk1/b2b2q1/RR5K w - - 1 2 illegal: No proof kernel
1BR1r3/qBRpP2n/2q2p2/3p1pP1/b2QNPp1/2r1b3/2q2nK1/kq3R1R w - - 0 1 illegal: No proof kernel
n1N3b1/B3r1NP/P1nqN2R/brb2n2/Pk2B1n1/5K1R/1b3Nb1/3r1n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 d5 c4 b5 e5 g5 a6 f5 e6 f3 h5 f4 h6 b4 h7 b3 e7 g3+ Ke1 b2 e8N g4 Kd2 g2 Na3 b1B Qe1 d3 Qe2 f2 Nh3 g1B Nc7 g3 Nab5 f3 Ke3 d2 Nf4 d1N+ Kd2 d4 Qe8 g2 Ncd5 d3 Nb6 Bg7 Nd7+ Kb4 c5 Nc6 Qg6 Bb2 Qg7 Ba2 Rh4 Ne3 Ne5 Nc4+ Kd1 d2 Qf6 Qd6 Qf5 Nb6 Rh2 Nh6 Nh5 Rb8 Ng4 Re8 Qg5 Na8 Nd4 Nf5 Rh3 Re7 Ng7 Bb7 Bd3 f1N Be4 f2 Ke2 d1R Be3 Nh2 Nde6 f1N Nf2 Ng4 Kf3 Bh2 Rh6 g1B Bd4 Bc4 Ra3 Bf4 Rc3 Bd2 Rd3 Nge3 Qg2 Ng4 Ng5 Bg8 N5e6 Bc8 Ra3 Rb5 Rc3 Bb7 Be3 Na5 c6 Be1 c7 Nc6 Ba7 Bd2 Nh1 Bb6 c8N Ba5 Ke2 Be3 Kf3 Bc5 Nf2 Rd2 Bc2 Nce5+ Kf4 Be4 Qg3 Bf3 Be4 Bh1 Qg2 Rd1 Rch3 Nc6+ Kf3 Bxg2+
1r1kr1qN/3P1n1r/6q1/3P1Nb1/4RP1r/n1N1b1R1/K2nn3/NB2Br1b w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Qf3 fxe4 Qa3 bxa3 Kd1 h5 Kc2 b5 Kb3 e5 f4 c5 g4 b4 d4 h3 d6 h4 g5 h2 a5 c4+ Ka2 c3 a6 e3 a7 e2 g6 e1N g7 c2 Nd2 h3 Bc4 e4 Nf1 e3 Ba6 e2 Ng3 Nh6 g8N Nf3 Ne4 e1R Bc4 Bb7 Bf1 Nf7 Bd2 c1B Kb1 b3 Ba5 b2 Bb4 Rh7 Ne2 Be3+ Nc1 Nd2+ Ka2 b1N Nc3 Bh6 Ne7 Bg5 Nf5 Nc6 Rg1 h1Q Nb3 h2 Rg3 Rb8 a8N Qg2 Nb6 h1R Nd7 R1h4 Nf8 Qb6 d7+ Kd8 Ng6 Qa6 Nh6 Qd3 Nh8 Qg6 Nf5 Qg8 Nd6 Qe4 Bc4 Qeg6 Bd3 Bg1 Nf5 Re8 Bc5 Ba6 d5 Nd4 Be4 Be2 Ba7 Bf3 Bc2 Nb5 Bf2 Nd4 Bd3 Bh1 Be4 Nc4 Bd3 Nbd2 Re1 Qb6 Re5 Qbg6 Ka1 a2 Re4 Na3 Kb2 a1R Bc2 Re1 Bb1 Rd1 Ka2 Rf1 Na1 Ne2 Be1 Be3
1rq4B/N2qb3/3PbNK1/pP4R1/1k2nn1N/1B2Pn2/3q1r1q/1q1b1NR1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Qd3 g2 Qg3 hxg3 Nb1 Bc5 Kd1 Bd6 Ke1 Bf8 b4 Kd7 h4 Kd6 d4 a5 Kd2 f5 Ke3 g5 b6 c5 b5 c3 d5 c2 h5 c4 b7 Kc5 h6 c3 h7 f4+ Ke4 f3 e3 f2 d6 g4 Ra3 Na6 b8N Nb4 Ne2 g1N Bb2 c1Q Kf4 g2 Nd2 c2 Rh6 g3 Ba1 Be7 Rd3 Nf3 Nc6 g1Q Rg6 g2 Ra3 Be6 Ne5 Nf6 Ng4 Ne4 Nf6 Qd7 Nd4 Rab8 Nc6 Rhf8 Bc4 f1B h8N Be2 Nf1 Bd1 Bb3 Qd2 Na7 c1Q Bc3 Rf7 Ra1 Qh2+ Rg3 g1Q Ng6 Qb1 Nh4 Qh3 Bb2 Qgh2 Be5 Ne1 Bb2 Nd5+ Ke5 Nf4 Rg5 Kb4 Bd4 Bd5 Bb2 Qc8 Bd4 Qhd7 Bb2 Ne6+ Kf5 Nf3 Kg6 Nf4+ Kh6 Ng2 Kg6 Bc4 Ne8 Be6 Bh8 Rf4 Nf6 Ng1 Ra2 Rf2 Rc2 Nf3 Rcc5 Nge1 Rg1 Nd3 Rcg5 Nf4+
R4R1n/1qp1NPn1/NPq5/4bq1r/bR6/rb1n4/PB1b2k1/RBrK4 w - - 0 1 legal: proof: e4 d5 h4 f5 c4 fxe4 cxd5 g5 b4 gxh4 Qc2 b6 Qc5 bxc5 b5 a5 Na3 Qd6 Rb1 Qd8 Rb4 axb4 d4 Kd7 g4 Kd6 f4 h5 b6 e5 f5 c4 f6 c3 g5 b3 g6 c2 f7 b2 g7 b1B Bh3 e3 Be6 e2 Bg5 c1R+ Kd2 e1N Nf3 h3 Rh2 h4 Rf2 e4 Nh2 e3+ Ke2 Rh5 Rf1 Bd7 Ng4 h2 Bf5 h1Q Nf2 h3 Nd3 h2 Bh3 Rc2+ Kd1 Qc8 Bg4 Nf6 g8R Nc6 Bh6 Ne5 Bg5 Ng6 Nb4 Nd3 Na6 Bg7 Bf5 Ba4 Rf8 Ne8 Bf6 Nh8 Bh7 Qf5 Nb5+ Kd7 d6 Kc6 d7 Kd5 d8R+ Ke4 Re1 Kf3 d5 Kg2 Bb2 Be5 d6 Ng7 d7 Ra7 Nd4 Bb3 Nc5 Ra3 Ra8 Rc3+ Nc2 Kf2 d8R Ba4 Rab8 e2+ Kd2 Nb4 Bg6 Qc8 Na1 Qhb7 Nab3 h1Q Na6 Bc2 Rd4 Qhc6 Ra1 Kg2 Ra8 e1B+ Ke2 Rc5 Re4 Qh3 Nd4 Bcb3 Nf5 Bd2 Ne7 Rc3 Rh4 Qhe6 Bd3 Qf5 Bb1 Rc2 Kd1 Nd3 Rb4 Rc1+
1qb2RN1/b2Rbr1k/1R2r1b1/n3pn2/4K2B/1N6/1qq1P1PP/1BR3rq w - - 0 1 illegal: No proof kernel forced: bxLB
1q1rb2r/4b2n/1N1RrPN1/Rr1b2nP/2p1B3/Kn3R1B/P1q5/1R3n1k w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 g4 f5 Qf3 h6 cxd5 fxe4 f5 Ra7 Qf4 Ra8 Bb2 Ra5 Bf6 gxf4 g5 Ra7 g6 Ra8 Bg5 hxg5 Kd1 Kd7 Kc2 Kd6 Kb3 Ke5 h4 c5 g7 b5 h5 f3 d4+ Kf4 d6 Kg3 d5 e5 d7 f2 d6 e3 Bg2 f1N Bb7 e2 Be4 e1Q Rh2 g4 Rf2 c4+ Kb2 b3 Na3 b4 Nb5 Nf6 g8B Qd2+ Bc2 e4 Re2 e3 Na7 Bb7 Rb1 Bd5 Nc6 Nh7 f6 Be7 Be6 Na6 Na7 Qb8 d8R Nc5 Rh2 e2 d7 e1R Rh1 Kg2 Nc6 g3 Bg8 Re6 Ne2 Qd3 Rh4 Qd1 Rf4 Kh1 Na7 g2 Bf5 g1N Rf3 Nh3 Nf4 N3g5 Nc8 Qd3 Ng6 Qe4 Bh3 Qf5 Kc1 b2+ Kd1 b3 Nb6 Qe4 Rc8 Qf5 d8R Qe4 Rd6 Qf5 Ra1 b1B Kc1 Bd3 Rb1 b2+ Kd1 Nb3 Rc5 B3e4 Ra5 Bc6 Bf7 Bed5 Be8 Bb5 Bc6 Ba4 Bb7 Be8 Bc6 Ne4 Kc2 Neg5+ Kc3 Qd3+ Kb4 Qc2 Rc1 b1R Ka3 Nc5 Bb7 Rb5 Rb1 Nb3 Bc8 Re1 Bcf5 Re6 Be4 Qb7 Nd7 Rd8 Nb6 Qb8
2NqR3/Kq3q1R/p1P1b2q/5qr1/P4Pk1/B1b1b1n1/1q1r1RqB/1R1N4 w - - 0 1 illegal: No possible last move
2N2B2/p1RNRP2/1nK2nq1/1r2R3/bknbb3/3P4/P3qqB1/n1qb1R2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 Qb3 b5 Qd1 bxc4 h4 g5 Qf3 g3 Qd3 g4 Qd6 Na6 Qe6 Rb8 Qd5 Rb5 Qd3 Rc5 Qb3 Rg5 hxg5 cxb3 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 e5 Kb5 h5 f4 e3 d3 e2 f5 e1N g6 c4 g7 e4 f6 h4 f7 c3 Be2 c2 Rh2 e3 Rh3 b2 Nc3 b1B Nf3 g2 Ng1 g3 Bd1 e2 Be3 c1Q Rh1 h3 Bb3 h2 Bf2 Qb6+ Ka4 Nf6 g8R Bd7+ b5 Bc2 Nd1 Nb8 Ne3 Kc5 Rg4 Bg7 Nf3 g1N Re4 g2 Re7 Rh5 Ne5 Ngf3 Rf1 h1B Bg1 Bd1 N3c4+ Nd4 Be3 g1Q Nd6 Nc2 Bd5 e1Q Nc8 Qg6 Bg2 Qe2 Bh6 Nf5 Rb1 Bh8 Bf8 Nd6 Rb4 Be8 Re4 Nbd7 Re3 Nc4 Re4 Qd6 b6 Qd4 b7 Qdf2 b8R Rg5 Rb7 Ndb6+ Kb3 Kb5 Rbc7 Ka5 Kc3 Ba4 Nd7 Rb5 Re3 Na1+ Kd4 Rb2 Kc5 Rb5+ Kc6 Kb4 R3e6 Bg7 Bd5 Be4 Re5 Bh6 Nc5 Be3 Nd7 Bf5 Bh1 Bd4 Bg2 Be4+
3rb3/n1n1Rp1K/3N1b2/2qp2Nk/P3nqqq/PR5r/B1P3r1/R1B4R w - - 0 1 legal: proof: f4 e5 d4 a5 b3 a4 bxa4 c5 Qd3 cxd4 Qd2 Qg5 Qd1 Qd8 g4 exf4 g5 f3 g6 hxg6 Nd2 g5 Nb1 g4 Qd3 g3 Qh7 Ne7 Qh3 Ng8 Qg2 fxg2 Kd2 d5 Kd3 g5 h4 b5 e4 g4 e5 b4 a3 b3 e6 b2 e7 Na6 h5 Bg7 h6 Bd7 h7 Nf6 Ne2 g1Q Rh5 g2 Nec3 g3 Bd2 Ne4 Rh3 Bf6 Rh2 Nc7 Ne2 Qf2 Nbc3 g1Q Nf4 b1N Bh3 g2 Nb5 Nbc3 Ne6 Qf4 Rh1 Qgf2 Rhb1 g1R Rb3 Rg2 Ng5 Qc8 Bf5 Q2h4 Bc1 Bc6 Bg6 Qcg4 Bh5 Rd8 Nd6+ Kd7 e8R N3b5 Re6 Na7 Re8 Qe6 Be2 Qe7 Nf3 Ke6 Ng5+ Ke5 Bf1 Bg7 Be2 Kf6 Bf1 Qf8 Re7 Kg6 Be2 Bf6 Bf1 Rg8 h8R Be8 Rh7 Rh8 Be2 Qe1 Rh1 Qb4 Bf1 Qh6 Be2 Qhh4 Bf1 Qc5 Be2 Rg1 Bf1 Kh5 Ke2 Qd2+ Kf3 Rg2 Bc4 d3 Nh3 Qdb4 Ng5 Qh3+ Kf4 d2 Rc3 d1Q Ba2 Qbc4 Rb3 Qh4+ Kf5 Rg8 Nh3 Nf2 Re2 R8g3 Re7 Bc3 Ng5 Rh3 Re5 Qd2 Kf6 Qcg4 Kg7 Qdf4 Kh7 Ne4 Re7 Bf6
n2N2R1/N6K/B1r4p/2P1kBR1/1Bnq2Pn/2b2nPb/1B2q1p1/1nr3n1 w - - 0 1 legal: proof: d4 g5 e4 f5 b4 a5 d5 axb4 h3 g4 hxg4 c6 Ba3 cxd5 Bb2 dxe4 Bc1 e3 g3 d6 Bd2 f4 Nc3 Bf5 Bc1 Be4 Nb1 Bg2 Qd5 Bh3 Qg2 f3 Be2 fxg2 Ba6 Bh6 Bf1 Bf8 Ke2 Kd7 Kd3 Ke6 Ke4 b5 c4 h6 a4 d5+ Kf4 d4 f3 d3 a5 e2 c5 e1N a6 d2 a7 d1Q Rh2 b3 Ra4 b4 Be2 b2 Rh1 b3 Na3 b1N Bb2 Bg7 Ba6 Nd7 Ne2 Nb6 Nb5 Na3 Rf1 Nac4 Ned4+ Kd5 Kf5 e5 Kg6 e4 f4 e3 f5 e2 f6 Ke5 f7 Nf3 f8B e1N Bc3 b2 Bb4 b1N Ne6 Q8d4 Nd8 Ng1 Rf2 Bf6 Bg7 Nef3 Raa2 Rb8 a8B Qe2 Be4 Na8 Na7 Rb7 Bf5 Ne7+ Kf7 Rh7 Rd2 Ng6+ Kg8 Rc7 Bh8 Rhd7 Rb2 Bg7 Kh7 Ngh4 Rf1 Qdd1 Rd2 Rc6 Rd5+ Kf6 Re5 Qd4 Re8 Re7 Rg8 Re3 Rd1 Rc3 Rd3 Rc1 Rd2 Qde4 Rd6+ Ke5 Rg6 Kd5 Rg5 Bc3 Be5 Qd4 Bf4 Rc2 Bc1 Ke5 Bb2 Rc1
5Bq1/p2p2b1/PkBP3P/1Nb4r/2brR3/2r1qrN1/R2R3K/n4bnR w - - 0 1 legal: proof: f4 b5 g4 h5 b4 hxg4 c4 e5 Nf3 exf4 Ng1 bxc4 Qb3 c5 bxc5 cxb3 Kf2 f5 Kg2 g5 d4 g3 a4 g4 h4 b2 e4 Nc6 h5 Ne5 d5 Nf6 c6 Bg7 a5 Ba6 c7 Rc8 Ra4 Bc4 a6 Nf3 e5 Ne4 e6 Ned2 e7 Nb3 Na3 b1R Be2 Na1 Bd3 Rb4 Ne2 Ng1 Nb1 f3+ Kf1 f2 Kg2 f1R Na3 f4 Rh4 f3+ Kh1 f2 Be4 g2+ Kh2 Rh7 Bh6 Rh8 Kg3 Rh7 Nb5 Rh8 Kf4 g3 Ra2 Bb3 Rg4 Nh3+ Kf3 g1B Bf4 g2 Kg3 Rh7 Bd6 Rc4 Bf3 Rf4 Rh4 Rd1 Be5 f1B Bd6 B1d4 Bc5 g1Q+ Bg2 Qe3+ Bf3 Nf2 Rh1 Nh3 Kh2 Ng1 Ng3 Rf6 Be4 Rf3 Bd6 Bb6 Bb4 Rd4 Ba3 Ra8 c8R Rh8 Rc5 Rc8 Rcc2 Rc3 Rd2 Bbc4 Bd6 Rhf8 h6 R8f5 Rac2 Bc5 Ra2 Kf7 e8R Qc8 Re6 Qg8 Be7 Ke8 Bf8+ Kd8 Na3 Kc7 d6+ Kb6 Nb5 Nh3 Bc6 Rh5 Re4 Ng1+
2rBB3/2p1K2q/3nbR2/5P2/p1b1r3/Pn2np1k/qPB1r2N/B1n2NR1 w - - 0 1 illegal: Other
N4q2/R3nrb1/1P1r2pp/3r1P1k/BR1P3p/2p1Bb2/NR4R1/2K1rrn1 w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 e5 h4 b5 axb5 e4 d4 f6 g5 fxg5 Qc2 gxh4 Qd3 exd3 Kd2 Kf7 f4 Kg6 b4 a5 e4 c5 b6 h6 b7 a4 b5 a3 b6 a2 e5 c3+ Kd1 c2+ Kd2 c4 e6 c3+ Ke1 Nd7 b8R Kh5 e7 Ra7 e8R Ne7 Ne2 Ne5 Be3 Bg4 Nc1 Bd1 f5 g6 Rb7 Rg8 Rg1 Bg7 Rg2 Rh8 Na3 d2+ Kf2 Rh7 Bb5 Nf3 Rb1 a1R Na2 c1R Rb4 Ng1 Ba4 Ra5 Rc7 Rd5 Ra7 Rd6 Nb5 Rab1 Nc7 Qc8 Rc4 Rb5 Na8 Rbd5 Rb4 Qb8 Rc8 Ra1 Rcc4 Qf8 Rb2 Bc2 Rbb4 d1R Rb2 Re1 Rcb4 Bb3 Re2 Bd1 Reb2 Ne2 Kf3 Ng1+ Ke4 Bf6 Kd3 Rf7 Bg5 Bg7 Be3 Bf3 Kc2 Rf1 Ra6 Rae1 Ra7 Bd1+ Kc1 Bf3+
1r1n2bN/3pPr2/2RPq1n1/5qb1/K2P4/N2NR1b1/N1bb2q1/3rnkBB w - - 0 1 illegal: Other
1Bb1r1rr/1r1R4/4pb2/n1R2q1P/1P2N1nq/4r3/N1KNP3/1Nbr1Bnk w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Bh6 h4 Bc1 fxg6 Qd3 g5 Qf3 g4 Qg3 hxg3 Kd1 Kf7 f4 Ke6 b4 Kf5 c4 g5 h4 a5 h5 d5 c5 g2 c6 a3 c7 a4 Rh2 g3 Kc2 Kg4 f5 d3+ Kd1 a2 f6 d4 f7 e6 Kd2 a3 Rh3 Nh6 Rh1 Nc6 Nc3 Na5 Nh3 g1R Bb2 g2 Rd1 Kg3 Nb5 a1Q Na7 g4 Nf4 a2 Bc1 Qh4 Nc6 Qb1 Nb8 a1B Na6 Rb8 Nd5 Rb7 Bb2 Bg7 f8N Bf6 Bc1 Bb2 Nc5 Kf2 Ng6 g3 Nb3 Ng4 Rh3 Rh1 Ne5 g1N Nf3 g2 Rg3 Rh3 Nc3 Ba3 Bb2 Re8 Rc1 Rh8 Kd1 d2 Na2 Qf5 Rc5 Re8 Bc3 Bc1 Bb2 Nh2 Rg6 Ng4 Rg7 Rg3 Rd7 Rh8 Ne1 Re3 Nc2 Kg3 Na3 Kh2 Nb1 Kh1 Rc3 Nh3 Rc6 g1R Rc5 Rg2 Ba1 Ng1 Bc3 Qfg5 Kc2 d1R Be1 Rdd3 N3d2 Qf5 Bg3 Rc3+ Kd1 d3 Rd8 Bd7 c8N Ra3 Nd6 Bc8 Rd7 Ra4 Nf3 d2 Ne4 Re8 Kc2 d1R Bb8 Raa3 Rf7 Rad3 Re7 Rdd8 Rd7 Rh8 Nfd2 Rde8 Re7 Nh2 Rf7 Rgg8 Rd7 Ng4
n1bRN1N1/2RN1qp1/P3Nrn1/3r1n2/BK1B2PP/1b4bk/6r1/rnr3q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 f5 cxd4 f6 h4 Qd2 exf6 Qc3 f5 Qf3 f4 Qg3 hxg3 Kd2 Ke7 a4 Kf6 e4 Kg5 c4 Kh4 e5 b5 h3 f5 c5 d5 c6 g2 e6 f3 c7 b3 e7 f2 e8N b2 a5 d3 Kc3 d4+ Kb3 d2 Ra2 d1R Bf4 b4 Bd3 f1N Be2 d3 Rh2 d2 Nf6 Qe7 Ne4 Na6 Ra3 Qf7+ Ka4 b3 Nf2 Ne3 Ne4 Bd6 Nf6 Ne7 Ne8 Ng6 Nc3 b1R Nd5 b2 Rd3 Rbc1 Ndf6 b1N Be5 f4 Bd4 f3 Nd7 f2 Nf3+ Kg3 Kb5 g1Q Ng5 f1R Ne6 Rf6 h4 Rf8 Rg2+ Kh3 Bf3 Bf4 Bc6 Bg3 Rf2 Nf5 Rf4 Bb7 c8N Nc7+ Kb4 Ra6 Rc3 Na8 Ne7 Bc8 Ba4 Rd6 a6 Rd5 Rc7 Re1 Ra7 d1B Ng8 Bb3 Rc7 Re2 Rf1 Rd2 Rd1 Rg2 Nd6 Rd8 Ne8 Ra5 Nb8 Rd6 Nd7 Rdd5 Ne5 Nf8 Bf2 Rd6 Bb5 Ra2 Ba4 Ra1 Bc5 Rc6 Rd8 Ng6 Bd4 R6c5 Nd7 Rd5
R2nq3/q1B1k3/Br3b2/P1r3Rq/bNK1pN1P/1B2Bn2/1r2P2n/3bqr2 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bc1 fxg6 Qd2 g5 Qf4 g4 Qg3 hxg3 Kd2 d5 Kd3 b5 h4 g5 c4 e5 f4 b3 a4 b4 f5 g2 a5 e4+ Kd2 d3 c5 d4 c6 b2 c7 g3 f6 b3 f7+ Ke7 Rh2 g4 Nh3 g1Q Nf2 g2 Nc3 b1R Rh3 b2 Nfd1 g3 Na2 Nf6 Rh1 Nc6 Rh2 Qe8 Ndc3 Rh6 Rh1 Bd7 c8B Nd8 Na4 Ng4 Nb4 Nh2 Bb7 Rb6 Nc2 Rc8 Bd5 Rc5 Nc3 Bg7 Bb3 Bf6 Nb4 Ba4 Ra2 Qf2 Rg1 Qf5 Ra1 Qh5 f8B+ Kd7 Bh6 Ke7 Ra2 Ra1 Bf4 b1R Rc2 Rb2 Bc7 Rab1 Rh1 g1Q Bh3 g2 Bc8 Qf2 Ba6 g1N Ncd5+ Ke6 Ne3+ Ke7 Ng2 Ra1 Nf4 Ngf3+ Kd1 d2 Rg1 Qg3 Rg2 Qh3 Rg5 Qhd7 Be5 Qa7 Rc4 Rbb1 Kc2 d3+ Kc3 d1B Bd2 Rb2 Be3 Rcb5 Rc8 d2 Ra8 Rc5+ Bac4 Bc2 Nfd3 Rf1 Nf4 Nd4 Bb8 d1Q Bc7 Ndf3+ Bd4 Rf5 Ba6 Qe1+ Kc4 Bd1 Be3 Rc5+
1nqn3B/4r3/5bb1/p5nP/R2rP3/R2rRBr1/P1n2RqN/1NK1nnk1 w - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Qb3 hxg6 Nb1 g5 Qh3 g4 Qg3 fxg3 Kd1 Kf7 f4 Ke6 e4 g5 b4 d5 h4 c5 h5 d3 f5+ Ke5 b5 Kd4 f6 g2 f7 c3 b6 c4 b7 g3 Bd2 g4 Na3 c2+ Kc1 Bg7 f8R Nc6 b8R a5 Kb2 c1R Bh6 c3+ Kb3 c2 Kb2 d2 Nb1 d1N+ Kb3 Ra7 Ba6 Ne3 Kb2 Rd1 Rb5 c1N Rb6 Nf6 Rb7 Nd7 Nc3 Nf1 Rb6 Nd3+ Kc2 Ndb8 Rc1 Ne1+ Kb1 Bf5 Rf7 Bg6 Rf2 Re7 Rh4 Bf6 Rc2 Qc8 Bd3 Rd8 Bg7 Ke3 Bf8 d4 Bc4 d3 Bd5 d2 Rcb2 Kf2 Bg8 Rd4 R6b4 Nd8 Nf3 g1Q Bb3 g2 Ra4 g3 Bg7 Qh2 Bh8 g1N Bc4 g2 Be2 Nh3 Rb3 g1R Rf4 Qg3 Nh2+ Kg2 Rf3 Ng5 Re3 Kh1 Kb2 Rg2 Kb1 Kg1 Bf3 Qf2 Kb2 Rg3 Nb1 Qg2 Rcc4 Rc1 Rc5 Rc3 Rba3 Rcd3 Rc2 d1N+ Kc1 Bf5 Re2 Nde3 Rf2 Bg6 Rcc3 N3c2 Rcb3 Rd2 Re3 R2d3
k4q2/1q1R1b2/1rB1P3/BNp2r2/n6R/q1P2Kpq/P1bb3N/1bR2Rqn w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nh3 h4 Ng1 fxg6 Qd2 g5 Qd3 g4 Qg3 hxg3 f4 d5 h4 Kd7 e4 Kc6 Ke2 b5 h5 Kb7 f5 c5 f6 g5 h6 d3+ Ke3 b3 h7 g2 f7 d2 e5 d1Q c3 d4+ Kf2 b4 Na3 b2 Nh3 b1B Ng1 d3 Be2 d2 Bb5 g3+ Ke3 g4 Bb2 b3 Nc4 Nh6 Rh2 Be6 Rh4 Ra6 Nf3 g1Q+ Kf4 g2 Nd4 g3 Rh3 Qgf1+ Ke3 Qc1 Nd6+ Ka8 N6f5 Nd7 Nf3 g1Q+ Kf4 d1B+ Ne3 Ng4 Ba3 b2 Rh4 Qh3 Nd4 Rb6 Bb4 Nf2 Ba5 Bdc2 Kf3 Bh6 f8R Bf7 e6 Nh1 Nf1 Bd2 Nh2 Rg8 h8R Rg5 R8h7 Rf5+ Rf4 Qe8 Rfh8 Qf8 Bc6+ Rb7 Nb5 Nb6 Rh4 Na4 R8h7 Bd3 Bd7 Rb6 Be8 Bbc2 Rg7 b1Q Bc6+ Kb8 Rgh7 Qa3 Rg7 Qbb3 Rc1 Be4+ Ke2 Bb1 Rff1 Bec2 Rgh7 Qd5 Rg7 Qd7 Rgh7 Qb7 Rg7 Bf4 Kf3 Ka8 Rgh7 Be8 Rc7 Bf7 Rd7 Bd2+
BrbNb1r1/1P1N2p1/1bnn1n1p/B2N4/r2q1K1P/2q1n2R/k1r3PN/4R3 w - - 0 2 legal: proof: d4 c5 Kd2 cxd4 a4 f5 e4 fxe4 a5 d3 a6 e3+ Kc3 bxa6 Qe1 a5 Qd1 a4 Qe2 dxe2 Kd4 Kf7 Ke4 Ke6 b4 e1Q c4 d5+ Kf3 a5 h4 h6 c5 a3 c6 e2 b5 a2 b6 d4 c7 Kd5 Be3 Kc4 Nc3 Kb3 Rc1 a1N Rh2 e5 Rh3 e4+ Kg3 a4 Rh1 d3 Bf4 a3 Rc2 a2 Nd5 e3 Rc4 d2 Rd4 d1B Be5 Bc5 Re4 Nf6 Bf4 Nc6 Rh3 Rg8 Nf3 Qc3 Nh2 e1R Bd3 e2 Bd2 Rb8 f4 Nc2 f5 a1R Kf4 Na3 Ree3 Ra2 Be4 Rc2 Bf3 Ka2 Re6 Ne4 f6 Nb5 f7 Nbd6 f8N Nf6 Nd7 Rh1 Re3 e1N Be4 Bh5 Re2 Qb2 Ba5 Be8 Bf3 Qc3 Be4 Nf3 Re1 Nd2 Bf3 N2c4 Be4 Bb7 c8N Ne3 Nce7 Bc8 Bf3 Ne5 Nc6 Bd4 Re2 Ra1 Re1 Bc5 Nf8 Qd7 Nd8 Qa7 Nd7 Nc6 Be2 Bd4 Ba6 Bc5 Bb7 Bd4 Ba8 Bc5 b7 Bb6 Bb4 Qa4 Kg3 Qa7 Kf3 Qa4 Ba5 Qad4 Kg3 Kb2 Kf3 Ra4 Kg3 Ka2 Kf3 Nfe4 Kf4 Nf6+
1n1BR1rb/4bBpq/6r1/1K1N3r/P2b1p1r/R1R1PN1k/4bPrn/3R3r w - - 0 1 illegal: Other
b2b1NnN/p1Bn1b1n/pBRBBrR1/8/np3P2/P1r2k1n/1P1K3q/2r5 w - - 0 2 illegal: No proof kernel
1B2b3/R1q3KB/p1b4r/B6p/2b1Rp1b/NbP4r/kPnB1N1P/1n1nr3 w - - 0 1 illegal: No proof kernel
2BqNrk1/3q4/2qb3q/2r1Bbq1/b1Npn1Pp/R1p3NP/nPN1R1K1/8 w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 f4 dxc4 f5 e5 f6 gxf6 d5 f5 Qd3 f4 Qd4 exd4 Kf2 a5 g4 c5 e4 h5 e5 f5 h3 Kf7 d6 c3 d7 c4 Be2 h4 Bd3 c2 Kf3 a3 Kg2 f3+ Kf2 a2 Be3 c1Q Rh2 f4 Bf1 a4 Nc3 a3 Nb1 c3 Rg2 Nc6 Nd2 Nf6 e6+ Kg8 e7 Rh5 e8N Bd6 Rh2 Rc5 Be2 Nb4 Rb1 a1Q Rh1 a2 Bd1 Ne4+ Kf1 f2 Nc4 Rb8 Kg2 f1B+ Kf3 Bd3 Ba4 Bc2 Rh2 Bb3 Bc6 Ba4 Re2 Qd2 Rbe1 Qac1 Bb7 a1Q Kg2 Na2 Bf2 Qab1 Bg3 Qbc2 Rd1 Qb3 Re1 Qbb6 Rf1 Qe3 Ba6 Qcd2 Ra1 Qc6 Bb7 Qg5 d8N Bf5 Bc8 f3+ Kh2 f2 Kg2 Qd7 Nc6 Qgd8 Nb4 Qh6 Be5 Q2g5 Nc2 f1Q+ Kh2 Nb4 Ra3 Na2 Kh1 Qff4 Kg2 Ra8 Re3 Qc6 Ne2 Qdd7 Ng3 Qgd8 Re1 Qfg5 Re2 Q8c7 Ba6 Rd8 Bc8 Q7b6 Nc7 Rf8 Ne8 Qbd8
Br1n2K1/4pPp1/4kBP1/1b1p3N/P1Nrb1q1/3Bq2R/1Bn5/1n1Rr1bb w - - 0 1 illegal: Other
5r2/Pp1n3b/1q1Nnb1P/rB1Rb3/KN3kpN/NP3q2/b1p2r2/3Rq1B1 w - - 0 1 illegal: No possible last move, all moves rejected
R7/3rkq1b/1R2N1r1/p2n1Kb1/2b2pnB/R1b1PPp1/P1N3n1/1R1bB1n1 w - - 0 2 legal: proof: d4 g5 c4 e5 f3 exd4 c5 g4 c6 g3 Na3 bxc6 Nb1 c5 Qd3 c4 Qd2 Qh4 Qd1 Qd8 Kd2 h5 Qe1 Bh6+ Kd1 Na6 Qf2 gxf2 g4 Nb8 g5 Bg7 Bh3 Bf8 Bg4 hxg4 Kd2 f1B h4 f5 b4 a5 g6 d5 h5 c5 b5 d3 Ke3 c3 Kf4 g3 h6 c4 h7 c2 g7 c3 b6 d2 b7 d1B Rh6 d4 Nh3 d3 Ng5 d2 Rh3 Qc7+ Ke3 Bb4 Rh6 Qf7 Kf4 Nc6 b8B Nge7 Bb2 c1B Na3 c2 Nh3 Rg8 h8R Bc3 Rb1 Ne5 Kg5 Ra7 Bd6 Nd5 Nf4 Rd7 Be7 Ng4 Rb6 Ba6 Rb3 Bd3 Rh6 Bc4 Bb4 Kd8 Rd6 Ke7 Ne6 Be5 Nf8 Rc7 Rd8+ Bd6 Nh7 Rd7 Rc3 Bd3 Rc5 Be5 Ra8 Be4 Kh4 Bf6+ Ng5 f4 Be5 Bh7 Ba1 Bcb2 Rc3+ Rd6 Rb3 c1N Nc2 Rd8 g8R Rd7 Rgb8 Bbd4 Ne3 Bdc2 Ra3 d1N Be1 Re6 R8b6 Bde5 Nc4 N1e3 Bb2 Ng2+ Kh3 Nh2 Ne3 Bd1 Nc2 Bd4 e3 Bc4 Ba1 Ne2 Bac3 Re5 Ne6 Rg5 Bb2 Rg6 Bbc3 Bh4 Ba1 Bh8 Bg7 Bf6 Bh6 Bc3 Bg5+ Bhf6 Bh4 Bg5 Ng7 Nf1 Kg4 Ng1 Ne6 Qg8 Rba6 Nh2+ Kf5 Ng4 Rab6 Qf7+
R1R5/pBrbr1RN/2p3P1/P2p3R/r5b1/1qbPkbrn/1B4r1/1N2K1n1 w - - 1 2 legal: proof: f4 e5 b4 exf4 h4 g5 c4 gxh4 Kf2 b5 Ke1 bxc4 Qb3 cxb3 a4 Ke7 g4 Ke6 e4 Ke5 a5 Kd4 b5 h5 b6 d5 b7 f5 e5 f3 d3 h3 g5 c6 e6 b2 e7 f4 e8R h4 g6 f2+ Kd2 f3 Na3 b1R Re6 h2 Nh3 Rb4 Rb1 Nf6 Ng5 h3 Ra1 Nbd7 b8R Rh7 Rb6 Ng4 Be2 f1B Nc4 f2 Rb7 Re7 Rb5 Ra4 Rd6 Qb6 Nb2 Bg7 Rb3 Nde5 Nc4 Nf3+ Kd1 Bd7 Rf6 Rc8 Rbb1 Ng1 Rb3 Rc7 Nd2 Ke3 Rf8 Bc3 Bb2 Bg2 Ra2 f1B Ra8 Bf3 Ke1 Nf2 Nh7 Qb5 Bd1 B1e2 Ra1 Qc4 Rbb8 Qb3 Rb1 Bfg4 Rc8 Bef3 Rc1 Ne2 Rf1 h1R Rb1 Rh2 Rh1 Rg2 Rh2 Qb5 Bb3 Qb8 Bc4 Ng1 Ba6 Qb3 Rh1 h2 Bb7 Bf6 Rc1 Nfh3 Nb1 Rg3 Rc4 Be5 Rf4 Bd4 Rf7 Bc3+ Nd2 Rg2 Rg7 Ne2 Rg1 h1R Rf1 Rg3 Rg1 Rh2 Rh1 Rhg2 Rh2 Bf6 Nb1 Neg1 Rh1 Nf4 Rh4 Nfh3 Rh5 Bc3+
B2bbb1R/1p1rr2R/1N1P2qK/2n5/1P1k1pb1/B4P2/rp1r4/1NB1Bnr1 w - - 1 2 illegal: Other
bB1bn3/1R2Prr1/p2qbk1B/5Bpq/K1nb4/P1NR3p/2n3P1/1n3N1B w - - 0 2 illegal: Other
2nbK1Bb/2N1RN2/br1p2rp/p1r1NP1R/5BPN/7P/pb6/q2rkn2 w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 Qg4 f6 f5 fxe5 Qg3 e4 Qf4 gxf4 Ke2 Kf7 b4 Kf6 g4 Kg5 c4 Kh4 b5 a5 h3 Kg3 b6 e5 b7 h6 c5 d6 c6 d3+ Kd2 Kf2 Kc3 e3 Kc4 d2 Kd5 d1R+ Bd3 a3 c7 e2 Bb2 e1B Nd2 f3 Be2 e4 Bf6 a2 Bf1 e3 Bg7 e2 Rb1 Ra6 Be5 Qf6 Bf4 Nc6 b8N Ne5 Nd7 Nc4 Rb7 Be7 Ne5 Bd8 Nf7 Qa1 Rb8 Bb7+ Ke6 Ne7 Kd7 Rg8 c8N Ne3 Nb6 Nc8 Na8 Rb6 Nc4 Rg6 Ke8 Bc3 Nce5 e1B Bc4 Ba6 Nc7 Bb2 Bd5 Kf1 Rh2 f2 Ngf3 Bec3 Nh4 Rc1 Rh1+ Ke2 Re1+ Kd2 Rb7 f1R Nef3+ Kc2 Nh8 Qb1 Na8 Rg7 Bg8 Qa1 Ra7 Rg5 Rg7 Kd3 Re2 Rfd1 Nc7 Nf1 Ree7 Be5 Rg6 Rc5 Nf7 Bh8 N3e5+ Ke2 Rge6 Rg7 Rg6 Ke1 Rg5 Rg6 Rh5 Bf6 Nd5 Bg7 Nc7 Bh8
rr1Rq2n/1nPPp3/B1p3bk/3BbB2/1pKbP3/2B4p/N5p1/1N3qRq w - - 0 1 illegal: No proof kernel
2R2Bn1/P1qR1p1K/3p1p2/2p2Pp1/NP2b3/N4r1r/rRBRp1k1/4n1bn w - - 0 1 illegal: No proof kernel
1b2qQKQ/5Q2/k1P2q2/3r1Nr1/1p4bN/1p2n1P1/n1NnR1P1/2b1n2B w - - 0 1 illegal: Other
2bK4/RR3q1Q/Q4Nq1/Prkr4/P3bP2/1pqppn2/1Q1b4/2r1BR2 w - - 0 1 legal: proof: d4 a5 c4 c5 b4 cxd4 bxa5 f5 e4 fxe4 Nf3 b5 Bd2 b4 Bg5 Na6 Bc1 Nc7 Ng1 Nb5 cxb5 h5 f4 g5 Nd2 g4 Ndf3 Ra7 g3 Ra6 Bh3 gxf3 g4 Ra7 g5 Ra8 Bg4 hxg4 Kd2 e5 h4 Ke7 a4 Kd6 g6 g3 h5 b3 g7 f2 h6 f1R h7 e3+ Kd3 e2 Ke4 e1Q+ Kf5 d3 b6 e4 b7 g2 b8R d2 Qe2 d1B Qa6+ Kc5 Rh6 d5+ Kg6 e3 Kf7 d4 Qe6 d3 Nh3 g1Q Rf6 Qc3 Bd2 Qc7+ Ke8 Qf7+ Kd8 Qgg6 Qa6 Ne7 g8Q Nf5 Nf2 Nd4 Be1 Nf3 Rb7 Rb8 Ng4 Bd6 Ra7 Rb5 Re6 Rh1 Ree7 Rh5 Nf6 Rd5 Rc1 Be2 Rb1 Bf1 Reb7 Bg2 Qf8 Rg8 h8Q Rg7 Ra1 Rh7 Qfg8 Rh1 Qgh7 Rf1 Bh4 Rc1 Bf2 Bgh3 Be1 Bhf5 Ra2 Be4 Rf2 Kc4 Rf1 Bb4+ Rd7 Kc5 Q8g7 Qf5 Qg2 Q5g6 Qb2 Qc2 Rb7 Bd2 Ra7 Qc3 Rb7 Rh5 Ra7 Rg5 Rdb7 Rd5+
R1B1Q2n/1Bq1b2P/3pQ1p1/N1pn1qb1/7B/k5Pb/2Q1P2q/1r2K2b w - - 0 1 legal: proof: b4 e5 f4 exf4 c3 b5 g3 h5 a4 a5 axb5 h4 Qb3 a4 Qd5 h3 Qg2 hxg2 c4 d6 c5 Rh7 c6 Ra5 bxa5 Qe7 Ra2 Rh6 Rc2 Rh8 Rc5 Qd8 d4 Ke7 d5 Nh6 Nc3 Ng8 Ne4 dxc5 d6+ Ke8 d7+ Ke7 Nd6 cxd6 h4 f5 b6 g6 h5 f3 a6 f2+ Kd1 a3 a7 a2 a8Q a1B b7 f4 c7 f3 h6 Ke6 h7 Kd5 Bh6 Kc4 Qa2+ Kb4 Rh5 Be7 Qb1+ Ka3 Rd5 Baf6 Bg5 Nh6 Qc2 Na6 b8Q Nf7 Rf5 Bb7 c8B Nb4 Bh4 Qc7 d8Q Nd5 Qd7 Bg5 Qe6 Re8 Rf4 Nh8 Rf8 Bc6 Qb5 Ba8 Bb7 Rb8 Bc8 Rb6 Qe8 Rb4 Nh3 g1Q Nf4 Rb7 Nd3 Qh2 Nc1 Rb1 Bg2 f1B Bh1 Bh3 Ke1 Rb2 Nb3 f2+ Kd1 Bb7 Na5 Rb5 Rf4 f1Q+ Kd2 Qfg2 Ke1 Qe4 Rf8 Qf5 Bg2 Nf4 Bc6 Nd5 Rg8 Ba8 B6b7 Rb1+ Qd1 Ra1 Qf8 Qd8 Bd7 Kb4 Ba6 Ne3 Qc1 Bd5 Bb7 Bh1 Qff7 Qb6 Ra8 Nd5 Qe8 Rb1 Bdc8 Qc7 Qd1 Ka3 Qc1+ Rb2 Qc2 Rb1+
RrQ2bBr/1PQ5/n1KrnP1n/1Qbn2b1/2b2r1k/1P3qN1/3B1B2/6q1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 f5 Bb7 Nc3 Bc8 Nce2 h6 Nf4 gxf4 g5 h5 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Ke2 Kf7 c4 a5 h4 d5 g6+ Kf6 b6 e5 b3 e3 Kd3 a4 g7 e4+ Ke2 d3+ Ke1 d2+ Ke2 d4 h5 Kg5 h6 g3 f6 g2 b7 a3 c5 a2 h7 a1Q c6 Be6 c7 Nh6 c8Q Qd5 Qc6 Na6 Qc7 Rb8 Qdc2 d1N Q7c3 d3+ Ke1 e2 Kd2 e1N Qa5 f3 Rh3 f2 Rg3+ Kh4 g8Q Ne3 Qcc7 N1c2 Qb5 Nd4 Ne2 g1B Bb2 Qd1+ Kc3 d2 Rg2 Qb1 Ng3 d1R Bc4 f1R Bc1 Rf5 Ra2 Rf4 Bd2 Qh5 Be1 Qf3 Bf2 Bf7 Be6 Nd5+ Kc4 e3 Ra5 e2 Ra4 Ba3 Qgc8 Bf8 Ra2 e1B Ra5 Rg8 h8B Bd2 Bg7 Rh8 Ra1 Re4 Ra2 Bg5 Ra4 Rf4 Ra5 Bh5 Bg8 Bf7 Ra2 Nab4 Ra8 Na6 Qba5 Ne6+ Kb5 Rdd4 Kc6 Qf1 Qb5 Rd1 Be1 Bgc5 Bf2 Qg1 Q8d8 Bg6 Qcc8 Bd3 Qdc7 Bfd6 Bf8 Bc4 Be7 Rdd4 Bd8 Bf8 Be7 Bb6 Bb4 Bbc5 Bd2 Rd3 Bfe3 Nb6+ Ne4 Rd7 Bd4 Nd5 Ng3 Rd8 Bf2 Rd6+
B4QrB/p1Pn2nr/b2K4/1N3P2/2rB3r/1Q5n/Q1qrr1Pk/r1R1b3 w - - 0 1 legal: proof: b4 b5 e4 c5 d4 cxd4 h4 g5 a3 gxh4 Nc3 f6 e5 f5 Ne4 e6 a4 fxe4 axb5 d3 Ra6 Qg5 Rd6 Qd8 Rd5 exd5 Rh2 d4 Rh3 Bh6 Rh1 Bf8 Kd2 Kf7 f4 Ke6 c4 Kf5 b6 d5 c5 h5 b7 h3 b5 h4 c6 e3+ Ke1 d2+ Ke2 Kg4 Kd3+ Kg3 e6 h2 b6 e2 e7 e1R e8Q h3 f5 Nf6 Ba3 Rg8 Bb4 Nh5 Nf3 Qc7 Nh4 Nd7 b8B Re2 b7 Ng7 Qa4 d1R+ Bd2 Bb4 Nf3 Ra1 Bc1 Be1 Rg1 h1R Bb2 h2 Qd1 Nb6 Qd2 Nd7 Kc2 d3+ Kb3 d4 Kc4 Rf2 Kd5 Re2 Qa5 d2 Qf8 d1R Qa2 d3 Nd4 d2 Nb5 Rdc1 Bf6 d1N Bd4 Rd2 Bd3 Nf2 Rf1 Rc4 Be4 Nh3 Bf3 Bf2 Rc1 Be1 Qf6 Re8 Qf8 Ree2 Be4 Rg1 Bf3 h1R Be4 Kh2 Bf3 Qf4 Be5 Rf1 b8Q Ba6 Bf6 Qc7 Qb7 Qc8 Kd6 Rff2 Be4 Rf4 Bd5 Rh4 c7 Qe8 Qb6 Qe4 Bb7 Rc8 Ba8 Qc2 Qb7 Ne6 Bh8 Ng7 Qf6 Rg8 Qf8 Rf1 Qbb8 Rff4 Qb7 Rh7 Qf3 Rfe4 Qfb3 Reh4
6Q1/r3n1qQ/3P3Q/bn3r2/B1nP2bq/Bp1R1B1n/2rP1b2/rNK1k3 w - - 0 1 illegal: Other
1K5Q/3kPp2/3n1P2/N1nQ3q/qQ1RRn2/4qP2/B1bbb1nn/n1R1r3 w - - 0 1 legal: proof: b4 a5 d4 axb4 f3 h5 d5 b5 d6 c5 Nd2 exd6 Kf2 d5 Nc4 d4 Ne5 c4 Bd2 c3 Ng4 hxg4 f4 cxd2 Nf3 Ra3 Ng1 Rf3+ gxf3 Ba6 Qc1 Bb7 Qd1 Bc8 Kg3 g5 h4 d5 a4 d3 c4 d4 e4 b3 f5 b4 f6 b2 a5 b1N h5 b3 c5 b2 c6 Nd7 h6 Ne7 c7 Na3 h7 b1N a6 Nf5+ Kg2 g3 a7 g4 a8R Ba6 c8Q Nc5 e5 Nc2 e6 Nd6 e7 Bh6 Qb8 Kd7 Qc1 d1Q Rh2 d2 Rh3 d3 Rh4 Qa5 Ra3 Na1 Qf8 Qda4 Ne2 d1N Nd4 d2 Qb2 Be2 Nc6 Rg8 h8Q Ne3+ Kg1 d1B Rc3 g2 Kf2 g1N Kg3 Nd2 Rc1 Bc2 Qb4 Q5b5 Na5 Nh3 Rb8 Nf4 Rd8+ Ke6 Rd7 Neg2 Qa8 Rg5 Qc6 Re5 Qb7 Nc8 Rd4 Nd6 Qd5+ Kd7 Qdb3 Ne1 Bh3 Neg2 Qd5 Re6 Rh5 Re4 Re5 Re3 Ree4 Nf1+ Kf2 Nh2 Kg3 Bc4 Rdd1 Re1 Rdd4 Nh4 Bf1 Nhg2 Be2 B4d3 Bd1 Bf1 Be2 Bg5 Bc4 Be2 Ba2 Nh4 Kf2 g3+ Ke3 g2 Rdd1 Qb7 Kd4 g1Q+ Ke5 Qe3 Rd4 Nhg2 Rcd1 Qa8 R4d2 Qg1 Qg7 Qh8 Rd3 Nh5 Rc1 Bd2 Rdd4 Nhf4 Qh6 Qe3 Qg7 Ke8 Qh6 Nb5 Qh3 Na3 Kd6 Nc4+ Kc7 Nd6 Kb8 Qh6 Qh4 Kd7 Qhh5 Qg5 Qh8 Qh5
2r2N2/1b1n1qPb/n1r2pr1/R1PQ4/4KP1n/N6Q/q2pBNQb/2kb4 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 g5 a4 g4 d5 cxb4 axb5 e6 Bb2 exd5 Bc1 d4 Be3 h6 Ra3 Qb6 Bf2 Bc5 Bh4 Qd8 Rf3 gxf3 g4 Qe7 g5 Qd8 g6 Bf8 Bg5 hxg5 Kd2 Ke7 Kd3 Kd6 e4 Kc5 h4 d5 c4 a5 g7 g4 h5 a4 e5 f2 e6 g3 h6 a3 b6 g2 e7 a2 e8Q a1Q h7 b3 b7 Kb4 Rh5 b2 Be2 f1N Rg5 Na6 b8N Nf6 Qe6 Ne3 Qc1 Kb3 Qc6 Qc7 Na3 b1B+ Nc2 Bc5 Bd1 Qa2 Bf3 Nd7 Be2 f6 Rg4 Bb7 Bf1 Rc8 h8Q Nf5 Qd8 Nh4 Qd2 Kb2 Qf2 Kc1 Nh3 g1R Rg5 Rg4 Rf5 Rg6 Qg2 Bb6 Nf2 Ba7 Qc5 Bb6 Ke2 d3+ Ke3 d2 Na3 d1B Be2 Be4 Qh8 Bb1 Nc2 d4+ Kd3 Ba7 Qcd5 Bc5 Ke4 d3 Qh5 d2 Qhg4 Be3 Q4h3 Ba7 Qc6 Bd4 Ra5 Ra7 c5 Ra8 Ng4 Bg1 Nf2 Bh2 Qd5 Nf8 Qg5 Qf7 Nd7 Rc6 Qgg2 Rb8 Kd4 Rbc8 Na3 Nh7 Nf8 Bd3 Ne6 Nf8 Ke3 Nd7 Nf8 Rh6 Kd4 Bh7 Ke3 Rg6 Kd4 Nb6 Ke4 Nd7
bRrn1q2/1b1Pr3/P1kp2rp/bnPN4/nn1K3B/b2QN3/3N4/1Q2Q3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c3 g5 c4 gxh4 d4 Be6 a4 Bg7 c5 Nd7 Bc4 dxc4 d5 Kf7 d6 Bf8 Ra3 Nb8 Rd3 Bc8 d7 Ra6 Rd2 Ra8 Rd6 cxd6 Ke2 e5 Ke3 b5 f4 e4 g4 b3 f6 Ke6 g5 c3 f7 h6 g6 b2 g7 h3 a5 b4 a6 c2 Qd3 b3 Nc3 b1N Qd1 b2 Na4 h2 Qe2 Kd5 f5 Bb7 f6 Kc6 Nb6 Na3 Nh3 b1N Nc4 Nb5 Rd1 h1B Nd2 N1c3 Qf1 Ne7 g8N Bg7 f8Q Na4 f7 Bc3 Qe8 Ba5 Nf6 Rg8 f8Q Rg6 Qd3 Bf3 Bb2 c1B Nd5 Bh1 Bf6 Ba3 Nf2 Qc8 Ke2 e3 Ng4 Qd8 Qb1 Bf3+ Kd3 e2 Qg7 e1R Qh7 Re4 Nge3 Bh1 Qeg8 Qf8 Qe6 Bf3 Bh4 Bg2 Nc7 Nd5 Rh1 Re5 Kc4 Nb4 Ncd5 Be4 Qe8 Bf3 Qd3 Re7 Rb1 Ra7 Rb3 Ba8 Rb1 Rc7 Rb2 Rc8 Qb1 Rgg7 Qhd3 Rg6 Rb3 Rh7 Qe5 Re7 Qg3 Be4 Qge1 Na7 Nf4 Kc7 Neg2 N4c6 Rc3 Nd8 Rb3 Nbc6 Rb8 Nb4 Kd4 Beb7 Ne3 Kc6 Nfd5 Nb5+
1b6/K3b1b1/NP1n4/1r1N1QpQ/p5Pq/1b1r3q/3BPq1Q/1b1kbRN1 w - - 0 1 legal: proof: a4 b5 b4 bxa4 c4 g5 d4 f5 d5 f4 g3 f3 Bg2 fxg2 Ra3 Nc6 Rd3 Ne5 Rd4 Ng6 h4 e5 h5 exd4 hxg6 d6 c5 dxc5 Rh2 c4 Rh3 Bb7 Rh1 Bc8 Kd2 Kd7 f4 Kd6 b5 Kc5 b6 Kb4 d6 h5 g7 c5 d7 a5 f5 h4 f6 c3+ Kd3 c2 f7 Kb3 g4 c4+ Ke4 h3 Kd5 d3 Kc6 c3 Qd2 h2 Nh3 g1Q Nf2 a3 Qe3 a2 Qc5 a1B Qe5 a4 Ne4 d2 Qd4 d1B Bf4 c1B Nf6 Kc2 Qf2 Bd2 Be3 Ne7+ Kc5 Rh3 g8N Be1 Qg3 Nf5+ Kc6 Nd6 Qf4 Qf2 Rf1 h1Q+ Nd5 Ra5 Nf6 Rb5 Bd2 Rd3 Qh2 Be7 Ne4 Qh8 d8Q Qh3 f8Q Bf5 Nc5 Qhh4 Qf7 Qhg2 Na6 Qgh3 Qc8 Bg6 Bf4 Bf5 Nd2 Kc1 Rh1 c2 Qh5 Bg7 Rf1 Bg6 Be5 Be4 Nf3 Bf5 Ng1 Kd2 Qe6 c1B Bg3 Bb3 Bf4+ Kd1 Bd2 Bcb2 Kc7 Bbe5 Kb8 Rg3 Qh8 Nb7+ Ka8 Bc7 Qe8 Nd6 Qh5 Bb1 Qf5 Rd3 Ka7 Bb8+
2Q1n3/r4K1p/Pb3NQq/1p1PNbbr/4QN1R/6k1/4Pq1p/r1q1Bn2 w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 g5 h4 gxh4 b4 axb4 d6 e5 a4 f5 g4 Be7 d5 Nh6 g5 Ng8 Bh3 Bf8 Bg4 fxg4 Ra3 Nc6 Rd3 Nb8 Rd4 exd4 Kd2 Kd7 Kd3 b5 Ke4 c5 Kf5 c4 f4 d3 g6 c3 g7 b3 a5 g3 a6 h3 Qd2 g2 Qd1 b2 Qc2 h2 Qa4 d2 Qb3 d1Q Qa4 c2 Qa5 Ra7 Nd2 b1R Ndf3 Qe1 Ba3 c1Q Nh3 g1B Qa4 Qf2 Bb4 Nc6 Be1 Na5 Qe4 Nf6 g8Q Bh6 Qg6 Qdb6 Ke5 Qbc6 f5 Nb3 Nf4 Ne8 f6 Rf8 f7 Nd2 Kf5 Bg5 Ne5+ Kd8+ d7 Kc7 Qc4 Rg8 f8N Ra1 Qd4 Nf1 Qe4 Q6c3 Ke6 Qh3+ Kf7 Qh6 Ne6+ Kd6 Nc7+ Kc5 d8Q Bf5 Qh5 Rg6 Qc8 Kd6 Qg4 Bf6 Qh5 Rg5 Qg6 Rh5 Ned3 Qg3 Ne5 Bb6 Rg1 Qge3 Rg4 Qf2 Qg7 Bd8 Rh4 Bg5 Qg6+ Kc5 Qb1 Kd4 Qb4+ Ke3 Qe7 Ng7 Ne8 Ke4 Nf6+ Ke3 Ba5 Ne8 Bc3 Qg1 Bd2+ Kf2 Bc3 Kg3 Bd2 Ra8 Be1+ Qf2 Qb4 Bc7 Qd4 Bb6 Qe4 Ra7+
3kB1R1/2rn3p/3nq2N/P1QQp3/QRrq1pRn/7b/b2PP2K/n2b4 w - - 0 1 legal: proof: g4 a5 h4 f5 b4 axb4 c4 d5 g5 dxc4 g6 e6 Nc3 Be7 Nb1 Bg5 hxg5 Ra6 Ba3 Ra7 Bc1 Ra8 f4 Qd3 Bb2 Qc2 Nc3 Qb1 Ne4 Kd7 Bf6 Qd3 Nf2 Qd5 Ng4 fxg4 f5 g3 Bb2 Kd6 f6 Kd7 f7 Qd3 Bf6 gxf6 Rh2 Qd6 Rh3 Qe7 Rh1 Qd8 f8Q b5 a4 c5 a5 c3 g7 f5 g6 c4 Bg2 b3 Kf1 b2 Qc2 b1B Qa3 f4 Rh2 b4 Rh3 e5 Bd5 b3 Kg2 b2 Qb4 Ne7 g8Q Ba2 g7 b1B Qcb2 c2 Q4a3 c1Q Qf3 c3 Rh5 c2 Bf7 Nf5 Bc4 Ra7 Rh6 Nd6 Qfb3 Rc7 Kh1 g2+ Kh2 Qf1 Qd5 c1N g8R Bc2 Rb1 Bd1 Q3c2 Nb3 Rhg6 Na1 Nh3 g1N Bb5+ Ke7 Qcc5 Nd7 Ng5 Qe8 Ba6 Kd8 Qbb3 Qf3 Bb5 Qe4 Qa4 Qd4 Rb4 Nf3+ Kh3 Nh4 Kh2 Nb8 R6g7 Bh3 Bc6 Nd7 Nf7+ Ke7 Nh6+ Kd8 Rf8 Rg8 Rg4 Rg7 Rg8 Rg6 Rg1 Rg3 Bb5 Rc3 R1g4 Rc4 Bc6 Nf8 Bd7 Qe6 Be8 Nd7
k3b3/4Qq2/qP1KpN2/3Nb1BQ/4QN1r/pPp2nb1/Pr5R/2bbr3 w - - 0 1 legal: proof: f4 b5 c3 h5 g3 g5 Bh3 gxf4 Be6 Nc6 Bc4 Nb4 cxb4 bxc4 g4 Nf6 g5 Rb8 b3 Ne4 Na3 Ra8 Rb1 Nf6 Rb2 Ng8 Rc2 Ba6 Nb1 Bb7 Na3 Bc8 e4 d5 Rc3 dxe4 Rg3 Bh6 Rg2 Bf8 Rg4 hxg4 Ke2 Kd7 h4 Kc6 d4 Kb7 b5 c5 h5 a5 g6 f5 d5 a4 g7 g3 b6 e6 h6 g2 h7 c3 d6 e3 Kd3 f3 Kc4 f2 d7 f1Q+ Ne2 g1B Rh5 f4 Rh6 c2 Qe1 f3 Rh5 f2 Rg5 Nf6 g8N Qe8 d8Q Bd6 Rd5 Nd7 Bb2 c1B Nh6 Qf7 Ng8 Bg3 Nf6 Ne5+ Kb5 c4 Kc5 c3 Nb1 a3 Rd4 Ra4 Qe7+ Bd7 Rd1 Ka8 Nd2 Rh4 Nde4 Be8 Nd5 Nf3 Nef4 Qa6 Rd2 f1B Rh2 e2+ Kd6 Bd4 Nef6 Bh3 Qh1 e1R Qg2 Rg8 h8Q Bg4 Qh5 Rg5 Qe2 Re5 Qd3 R5e2 Qdh7 Bf5 Q7g6 Bc2 Qgh7 Bd1 Qe4 Bce3 Bc1 Rb2 Bd2 Rf1 Be1 Bc1 Bd2 Re1 Be3 Ne5 Nh3 Nf3+ Bf4 Bgf2 Bg5 Bg3+ Nhf4 Be5+
nb3nB1/p4pbQ/3R1q2/K1B1B3/2r1Q1Pq/P2nNP1p/1p2Q3/1rr4k w - - 0 1 legal: proof: e4 g5 b4 d5 b5 dxe4 b6 g4 a3 cxb6 Be2 b5 Bf1 b4 Ra2 b3 Be2 bxa2 Bc4 Nc6 Bf1 Nb8 f3 g3 Nc3 Bg4 Ke2 Qd5 h3 Nc6 hxg4 Qd4 g5 Nd8 Nd5 Nc6 Nf4 Qb6 Nd3 Nb8 Nf2 gxf2 g4 Qd8 c4 Kd7 d4 Kd6 Kd2 a1B d5 Ke5 g6 Kf4 g7 Kg3 c5 b5 d6 e5 c6 h5 d7 e3+ Kc2 e2 Kb3 e1Q c7 h4 c8Q e4 Qd3 h3 Qdc3 b4 Ka4 b3 Bg5 e3 Be2 Kg2 Q3c4 f1R Be7 Na6 Bd1 e2 Qb7 Nf6 g8Q Nc7 Qbe4 Be5 Qgh7 b2 Bc5 Qh4 Ka5 e1N Bc2 Bg7 Ne2 Nd3 Ng3 Rc8 Nf5 Rb1 Rd1 Rg8 Rd2+ Kh1 Ne3 Qe7 d8B Nd7 Qb5 Na8 Bc7 Qef6 B7d6 Bg3 Be5 Rgd8 Qa6 Nf8 Qac4 Rd4 Rd1+ Ne1 Qe2 Rc4 Rd6 Nd3 Bb6 Nd7 Qhf5 Rb4 Qd4 Nb8 Rd5 Kg1 Bd6 Nf4 Be4 Rcc1 Bbc5 Rbc4 Qh5 Qe6 Bh7 Nd3 Bg8 Kh1 Qh7 Qef6 Qde4 Nd7 Bb8 Bd6 Rd4 Nf8 Rd5 Be7 Be5 Bd6 Rd4 Bb8 Rd7 Rg1 Rd6 Rgc1
R1B1nR1K/pPPp1Ppn/2bpNb1n/r2rk2r/6RQ/7Q/3Qq3/5q2 w - - 0 1 legal: proof: e4 e5 a4 b5 axb5 h5 g4 hxg4 d4 f6 Bf4 exd4 Nc3 f5 Bd6 cxd6 e5 Nc6 Ne4 fxe4 Bg2 Nb8 Bh3 Rh6 Bf1 Rh8 Ke2 Ke7 f4 Ke6 c4 g3 h4 g2 b4 d3+ Ke3 d2 b6 Nh6 f5+ Kf7 Kf4 e3 e6+ Kf6 e7 e2 e8R e1R h5 Ba6 b7 Be7 c5 Qb6 b5 Qd8 c6 Re5 b6 Bb5 c7 Ba6 Rh4 Ra5 Ne2 g1Q Rg4 Qh1 Nd4 Qg1 Ne6 Nc6 b8Q Bb7 Ba6 Ne5 Qe2 d1N Qd2 Bf3 Bc8 Nc3 Rf1 Ne4 Qb7 Ng5 Qe4 Bh1 Qee3 Bd5 Qh3 Rb8 Rf3 Nh7 Rg8 Nhf7 h6 Bc6 Re8 Qf1 Qh4+ Nhg5 h7 Nh6 Rg8 Qe8 Qh3 Qh5 Rd8 Re8 h8Q Rb7 Qh7 Rh8 Rg8 Nef7 Rd8 Ng8 Rf2 Nfh6 Re8 Kf7 f6 Bd8 Qh4 Rb8 Qhd3 Nh7 Qdh3 Be7 Ba6 Rb7 Ra8 Qhb5 Rf3 Qbe2 Rf2 Rb8 Bb7 Re8 Bc8 Bd8 b7 Re7 Nd4 Ree5 Ne6 Be7 Qhd3 Red5 Qf5 Nf8 Kg5 Nh7+ Kh5 Ng5 Qfd3 Nh7+ Rf5 Bd8 Qdh3 Nf8 Re5 Nf5+ Kg5 Rh7 Nd4 Rh8 Re8 Be7 Nc2 Ke6 Nd4+ Ke5 Ne6 Bd8 Re7 Rh7 f7 Nf6 Re8 Be7 Qf2 Rh4 Qfe1 Nh6 Rd8 N8h7+ Kg6 Rh5 Qeh4 Ng5 Rg8 Ne8 Rf8 Nf3 Kh7 Bf6 Kh8 Ng5 Qhe1 Nh7 Qeg3+ Qf4 Qgh4 Qff1
2b3Qq/3K1bb1/Q2b4/2pQRPBp/1rP5/Nn3pk1/p1P5/nN1Nq2r w - - 0 1 legal: proof: h4 b5 a4 bxa4 f4 g5 Nc3 gxh4 Nb1 e5 d3 Qf6 Ra3 Qe6 Ra1 Qc4 dxc4 Ba6 Ra2 Bb7 Ra1 Bc8 e4 Bg7 b4 Bb7 Be2 Bc8 Bg4 Bf6 Be6 Na6 f5 Nb8 Ra3 Bd8 Rf3 Be7 Rf4 exf4 e5 Bd6 Bd5 Bf8 e6 Nh6 e7 Ng8 Be6 fxe6 Qd2 Kf7 Qd5 Na6 Qd1 Nb8 Kd2 Kf6 Kc3 Ke5 e8Q d5 g4 a5 b5 c5 b6 h3 g5 h2 g6 d4+ Kd3 a3 b7 a4 g7 a2 Qg6 a1B Nh3 a3 Be3 a2 Qgg4 Ne7 g8Q Nec6 Q4g6 Ra4 Q6f7 Na5 Qe7 Nbc6 b8N Rb4 Na6 Nb3 Bg1 Bb7 Nc7 Nca5 Qd7 Bd6 Ke2 d3+ Kf2 d2 Qf1 d1B Nb5 Bh5 Qd3 f3 Ke3 Bf7 Bf2 h6 Rg1 h1Q N5a3 Bb2 Rd1 Na1 Bh4 N5b3 Nf2 Qh3 Qe2 Qh2 Kd3+ Kf4 Re1 e5 Bg5+ Kg3 Nd1 e4+ Ke3 Bg7 Qd3 Kg2 Qd5 Qe5 Qb5 Kg3 Qa6 Rh7 Qd8 Qe8 Re2 Qh8 Qg8 Na5 Kd2 e3+ Kd3 N5b3 Re1 e2 Ke4 Bg6 Qdc6 Bh5 Kd5 Bg6 Ke6 Be8 Rh1 Bf7+ Kd7 e1Q Qd5 h5 Ndc3 Rh6 Rh2 Re6 Re2 Re4 Re3 Rh4 Re5 Rh1 Nd1 Bc8+
1QN2rQ1/b1qnp3/k4Bb1/1R2P3/PQ2b3/1qPNp1K1/rbp1p1N1/5r2 w - - 0 1 illegal: No proof kernel
1rRRQ3/pqR1p1nq/2p1Q2b/KpP3r1/N2PbQP1/2n2p2/8/1k4Bb w - - 0 1 legal: proof: f4 h5 e4 d5 exd5 g5 g3 gxf4 Bh3 h4 Bg2 h3 a4 hxg2 a5 Bg4 a6 bxa6 Nc3 Bf5 Nb1 Bc8 b4 Qd7 b5 Qf5 b6 Qd7 Na3 Qd8 Nb5 axb5 c4 Kd7 d4 Kd6 Kd2 f5 Kc3 f3 Kb4 f2 h4 f1B h5 c6 g4 f4 b7 f3 h6 Nd7 b8Q+ Qc7 h7 Bh6 Qc2 Ngf6 Ne2 g1Q Qf5 Ne4 Be3 Ndc5 Nc3 Ne6 Ra6 Ng7 Na4 Rg8 h8Q Nc3 Rb6 Qh2 Bg1 Bg2 Rb7 Qh3 Rh2 Bh1 Qf7 Bf5 c5+ Kd7 d6 Be4 Qfe8+ Ke6 d7 Kd5 d8R+ Qd7 Qf4 Rb8 Ka5 Kc4 Rc8 Kb3 Rbc7 Qh5 Rh3 Kc2 Qg6 Kb1 Qe6 Qg6 Rh5 Qh7 Rd5 Nh5 Rd6 Rg5 Qe8 Ng7 Rd8 Rh5 Rcc8 Qb7 R6d7 Re5 Rdc7 Rg5
Nq6/2b1rnNN/1p5n/rP2p2Q/1q4Rq/Qb2Qq2/K1PnP2r/1B2kr2 w - - 0 1 legal: proof: d4 a5 b4 c5 g4 cxd4 a4 f5 b5 fxg4 Be3 h5 Bd2 h4 Bb4 axb4 Ra3 Ra6 Rc3 Ra8 Rg3 hxg3 Kd2 Kf7 Kc1 Ke6 Kb2 Kd5 h4 Kc4 f4 g5 a5 e5 a6 d5 f5 g2 f6 b3 h5 d3 h6 d4 a7 g3 f7 d2 h7 b6 Nc3 g4 Nd5 d3 Nf3 g1R Nf4 g2 Nh3 g3 Qe1 d1R Nh4 d2 Nf2 Nh6 Ng6 Be6 Rh2 Nc6 Nh1 Bd6 f8N Qb8 Nd7 Bc7 Nf2 Nd8 Rh5 Ndf7 Ka3 Kc3 Ndf8 b2 Nf4 b1Q Nh1 Bb3 Qf2 Ba4 N4e6 Qb4+ Ka2 Rb1 Rh2 d1Q Qe3+ Qd3 Rh4 Rd1 Rg4 Re1 Qc5+ Kd2 Qe3+ Kd1 Qg5 Qf3 Qe3 Rg8 h8Q Rg7 Qa3 Kd2 Nh7 Rb1 Qe3+ Ke1 Qe8 Rd1 Qh8 Rd7 Qe8 Re7 Qh8 Rg5 Qe8 Rh5 Qh8 Bd6 Nc7 Rh2 Qe8 Ng5 Qh5 Ngf7 Nf2 Rgh1 Nh3 g1Q Bg2 Qgf2 Nf4 Rf1 Bh1 g2 Nfe6 g1N Ng7 Qh4 Bg2 Qfh3 Bd5 Nf3 Bc4 Nd2 Be6 Qf3 Bd5 Qf8 Be6 Rb8 a8Q Qe8 Qa6 Ra8 Bc4 Ra7 Na8 Qb8 Qa5 Qc5 Qac3 Bc7 Qa3 Ra6 Ka1 Ra7 Ba2 Ra5 Bb1 Qb4 Ka2 Bb3+
rB3b2/2qK2p1/3p2b1/n3Q1Q1/4P1n1/br1p1N2/Qn1PqkP1/RbR1R2b w - - 0 1 illegal: No proof kernel
2qQ2R1/1b1n4/6QQ/q1p1br1p/1nP2b1N/pRb2R1r/P1qkPK2/3r1B2 w - - 0 1 legal: proof: d4 e5 c4 exd4 h4 g5 Nc3 gxh4 Bd2 b5 Nb1 b4 g4 f5 Bc3 bxc3 g5 Qf6 Nd2 Qe7 Nb1 Qd8 Nd2 Qf6 Ne4 Qd8 Nf6+ Kf7 Ng4 fxg4 Bg2 Ke7 Bf1 Ke8 b4 Kf7 f4 Kg6 b5 Kf5 b6 Ke4 b7 Ke3 f5 d5 f6 c5 f7 a5 g6 h3 g7 d3 Qc2 d4 Qa4 c2 Qd7 c1B Qa4 g3 Qb3 g2 Qb2 h2 Qb1 a4 Qb4 a3 Nf3 g1B Qc3 Bd6 f8R Nf6 g8Q Nd5 Rf4 Qa5 Qe6+ Be5 Bh3 Nd7 b8Q Bb7 Qf8 Nb4 Qff6 Raf8 Qh6 Rf5 Qb2 d2+ Kf1 d1R+ Kg2 d3 Qb6 d2 Rb1 Bf2 Rg1 Be1 Qc2 h1Q+ Kf1 Qh2 Bg2 Qh3 Nh4 Qg4 Bh3 Qg8 Rg6 Qc8 Qd6 Bcb2 Rf2+ Bf4 Rg8 Be5 Bg2 Rc1 Qd5 d1Q Rb3+ Qd3 Qb1 Kd2 Rf3 Rd1 Qd4 Bg5 Qdd6 Bgf4 Qe7 Qc2 Qd8 Bc3 Kg1 Bg3+ Bf1 Bh2+ Kg2 Bg3 Qc6 Bfe5 Qh6+ Bgf4 Kf2 Re1 Qd6+ Qd3 Bh3 Rg5 Ng6 Rd1 Bf1 Rh5 Qc6 Rh3 Nh4 h5 Rgg3 Qf5 Qh6 Rf8 Rg8 Rf6 Qe4 Qh7 Qc6 Qc2 Qa6 Rf8 Qag6 Rf5
q1r1R3/Qnnp1bB1/1N1b3Q/BB2PQ2/1K1P2p1/1b3nP1/1pr3q1/3k2bn w - - 0 1 legal: proof: f4 c5 b4 cxb4 a4 e5 g3 exf4 Kf2 h5 Qe1 a5 Qd1 h4 Na3 h3 Nc4 Qh4 Ne3 Qd8 Ng2 hxg2 Ra3 Qh4 Rd3 Qd8 Rd4 b3 Rb4 axb4 Ke1 Ra6 Nf3 Ra5 Ng1 Ra8 e4 Ke7 d4 Kf6 Kd2 Kg5 c4 f5 a5 b5 c5 b2 e5 b1B a6 b3 Kc3 b4+ Kc4 b2 h3 b3 a7 Bd6 c6 Ne7 c7 Nd5 Qd2 Bb7 c8Q Nc7 h4+ Kg4 h5 g5 h6 f3 h7 f4 Qc3 f2 Bd3 f1Q Nf3 g1B Rh5 Qg2 Be4 Nc6 Rh6 Bc2 Bd5 b1N Rh5 b2 Qb4 Nc3 Rh6 Nd1 Bf7 Nf2 Rh3 Nh1 Nd2 f3 Qb6 f2 Qa6 Re8 h8B f1N Bg7 Nh2 Rh8 Nf3 Rf8 Rb8 a8Q Bb3+ Kc3 Na5 Q8a7 B7d5 Nc4 Rb4 Bd2 Nb7 Nb6 Be6 Bg6 Bf7 Bd3 Rb5 Rg8 Rc5+ Kb4 Rf8 Qca8 Qb8 Bb5 Rc8 Ka3 Rc4+ Bb4 Rc2 Re8 Na5 Qc6 Nb7 Qc4 Qa8 Qd3 Nh4 Qg6 Kf3 Qh5+ g4 Qg6 Bbc4 Qf5+ Ke2 Ka4 Nf3 Ba5 Nc5+ Kb4 Kd1 Q6b7 Bb3 Qc6 Bf8 Qce6 Bd6 Qh6 Nb7+
2Q1R2q/2PBB1k1/1PP3p1/6BB/3qn3/nnqq1n2/5N2/1qb2bKB w - - 0 1 legal: proof: f4 a5 b4 b5 bxa5 h5 a4 e5 c4 exf4 d4 c5 g4 hxg4 a6 b4 a5 Rh6 d5 Rb6 axb6 b3 Ra4 Ra7 Rb4 cxb4 c5 Rc7 Nc3 Rc6 dxc6 Nf6 Nd5 Ng8 Ne7 Nf6 Ng8 Nxg8 Kf2 f5 e4 Kf7 h4 d5 h5 g6 e5 g3+ Kg2 b2 c7 b1Q a7 f3+ Kh3 g2 Kh2 d4 a8B f2 c6 b3 e6+ Kg7 e7 f4 e8B d3 Qg4 b2 Qf3 d2 Qe3 d1Q Qg3 f3 Qh3 Nd7 Bg5 Ngf6 Be2 f1Q Bb7 f2 Bf7 Qd4 Bd5 Nc5 Bg4 Bf5 Bc8 Qfc1 Bd7 f1Q Bgf3 Qcc3 h6+ Kh8 h7 Bh6 Bd1 Kg7 Bh5 Nfe4 Qg4 Nb3 Nh3 g1N Nf2 Qfd3 h8B+ Kf8 Bhf6 Nf3+ Kg2 Qb8 Bd8 Kg7 Bde7 Qh8 Re1 Be6 Be8 Bf7 Qc8 Be6 Kh1 Bh3 Bd7 Bf1 Re3 Qbe1 Re2 b1N Re3 Na3 Re2 Nh2 Kg1 Qeb1 Re1 Nf6 Bh1 Ne4 Bh4 Bc1 Beg5 Nec5 Re8 Ne4 Be7 Kh6 Bhf6 Kh7 Bh4 Kg7 Bhg5 Nf3+
2NR3B/b2P1BP1/3QP2r/nKb3rB/n2bb3/B4r2/3Bn1k1/2qbnn2 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 b6 g5 Ra4 gxh4 Ra6 Qg5 Ra1 Qd8 b4 d6 c4 Bg4 b5 Bd7 Ra4 Bc8 Rb4 cxb4 c5 d5 Na3 Be6 Nc4 dxc4 Rh2 Bg4 Rh1 Bc8 e4 Ke7 Ke2 Kf6 d4 Kg5 g4 h5 b7 f5 c6 a5 e5 b3 c7 a4 b6 c3 Kd3 c2 Kc4 a3 d5 b2 d6 b1N Kb4 a2 Be2 a1B Rh3 Ne7 Kc5 Nd5 Bd2 c1B Rh1 h3 Bc4 Kh4 g5 Kg3 g6 f3 Qe2 f2 Qe1 h4 Kb5 h2 Qe3+ Kg2 Qc5 f1N Qc6 h3 Be2 f4 Qc4 f3 Kc5 f2 Bh6 Nde3 Kb5 Qg5 Qe6 Nc6 b8B Bd4 b7 Na5 Bh5 Nc2 Ne2 Bce3 Nc3 Ne1 Na4 Ng3 Qd7 f1N Nb6 Ne2 Qe7 Be6 c8B Bg4 Be6 Rg8 d7 Ra6 Qf6 Bfc5 Bd6 Bg1 b8B Qc1 Bc4 Ra8 Bbc7 Raf8 Bd2 Bgf2 Qe6 Rf3 Nc8 Ba7 Ba3 Nbc3+ Kb4 Na4 Kb5 Bdc5 Qd6 Bfd4 Ba2 Bf5 Bc4 Bc2 Bf7 Bd1 e6 Rh8 Bd8 Rh6 Bg4 Rh5 Bf6 Rg5 Bh5 Nfg3 Rf1 h1R Bh8 h2 g7 Rf6 Rf5 Nf1 Qf8 Rh6 Qe7 Rg1 Qd6 h1B Bfg6 Rg3 Rf8 Rf3 Be8 Kh3 Bef7 Rg5 Re8 Kg2 Rd8 Re3 Ka6 Kf2 Qc7 Be4 Qd6 Rf3 Kb5 Kg2
1N2b1R1/rrN1b3/n3KrP1/rN1N3Q/Pn1PN3/3b1r2/1p3q2/1kBrq3 w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 exf4 a4 d5 cxd5 h5 Bh3 f3 g5 g6 Bg4 hxg4 Ra3 Bc5 Rc3 Bf8 Rc6 Rh6 Rf6 Rh8 Rf5 gxf5 Bb2 f4 Ba3 Qe7 Bc1 Qd8 Kf2 Ke7 d4 Kd6 h4 c5 e4 f5 h5 b5 h6 g3+ Kf1 b3 g6 b2 h7 g2+ Kf2 c4 Rh3 b4 Be3 b3 Rh6 c3 Qe1 c2 Qc3 c1R Qd2 Qe8 Qe1 Na6 Nd2 b1R Rh5 Ne7 Qf1 Rd1 Rh2 Ra7 Rh3 Nc6 Rh1 Be7 Qe2 Bd7 Nh3 Ncb4 Rh2 Rf8 h8N g1R Rh1 Rf6 e5+ Kc7 d6+ Kb6 e6 Ka5 Nf7 Rg5 Rh2 Qf8 Ne4 Be8 d7 Rh5 d8N Rg5 Qe1 Rb2+ Kf1 f2 Bc1 Rb1 Ke2 f1R Qg3 f3+ Ke3 f2 Qg4 f4+ Kf3 Rc5 Qh5 Rb5 Kg4 f3 Nfd6 Qf7 Bg5 Rbb7 Nb5 b2 Rh1 Rbc1 Bf4 Rc5 Bc1 Bd6 e7 Qe6+ Qf5 Nd3 Nbc3 Kb4 Nd2 Ka3 Rh2 Bc6 e8N Be7 Nf4 Ra5 Nc7 Ndb4 Nfd5 Qe1 Rh8 Be8 N3b5+ Ka2 Ne4 Kb1 Qg5 Rh1 Qf5 f1Q Nc6 f2 Rg8 Rh3 Nb8 Rf3 Qe5 Qfe2 Qh5 f1B Bf4 Rfb6 Kf5 Rf6+ Ke5 Q2f2 Bc1 Rf7 Ke6 Bd3 Qh7 Rf8 Qh5 R8f6+
3B3b/Pn3Knn/kr6/1pBq1Rn1/1P2b1B1/4bnQ1/1N2BPr1/B5rr w - - 0 1 legal: proof: h4 f5 e4 fxe4 c4 d5 cxd5 g5 b4 gxh4 a3 a5 Nc3 a4 Nce2 Bh6 Nd4 Bf8 Nb3 axb3 Ra2 bxa2 a4 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 Kd7 Ke3 a1N Kf4 c5 Kg5 Kc7 d4 Kb6 g4 h5 Kg6 e5 g5 h3 d6 h2 d7 e3 d5 h4 d6 h3 Qf3 e2 a5+ Ka6 Be3 b5 Qf7 e1R Bg2 c4 Qg7 e4 Qh6 c3 Qh7 c2 Qh5 c1B Bf3 Nf6 Bb6 e3 Bc6 e2 Qh7 Nb3 Qg7 Rg8 Nf3 Nh7 Bc5 Be3 Be4 Rg1 Nd2 e1N Bb1 Nf3 Bd3 Nc6 Nc4 Bb7 Kf7 Nbd4 g6 Rb8 Nb2 Ne6 Be2 Be7 Qc3 Bf6 g7 Rg2 Rd1 h1N Rd5 h2 Rf5 Ng3 Qe5 Nh5 Qg3 Re8 g8B h1R Rg5 Bh8 Rf5 Qg5 d8B Nhg7 d7 Ba8 Bc7 Rb6 d8B Rhg1 Bf6 Rd8 Bc3 Rdd1 Bd8 Rh1 B3d4 Rdg1 Bc3 Ka7 a6 Na5 B3d4 Be4 Be5 Qf4 Bef6 Qd6 Bfd4 Qd5 Bc3 Ka8 a7 Kb7 B3d4 Ka6 Bc3 Nf6 Bh7 Nb7 Bg6 Nfd4 Bgh5 Nf3 Bg4 Nh7 Na4 Rh5 Ba1 Rhh1 Nb2 Neg5+
1k2n2n/qP3pNN/bR2B1P1/n2q1P2/N4bqq/p4r2/r2N1K2/1b3QN1 w - - 0 1 legal: proof: d4 c5 h4 g5 b4 gxh4 a4 b5 Be3 bxa4 Bf4 Bg7 Bd6 Be5 dxe5 exd6 Ra3 d5 Rd3 Qg5 Rd2 Qd8 Rd4 cxd4 g4 a5 e4 h5 c4 h3 f4 h2 f5 h4 b5 d3 c5 h3 b6 a3 c6 a2 e6 a1B e7 d2+ Kf2 a4 g5 d4 c7 d5 e5 Kd7 e8N d3 Qh5 d1N+ Ke1 d4 Nc3 d2+ Ke2 d3+ Kf3 Nc6 Ne4 Nf6 N4d6 Nc3 Ng7 d1B+ Ne2 d2 Qg6 Ba6 c8N Ne8 b7 Kc7 e6 Bc2 e7 d1Q Qe6 Kb8 Bg2 Qb6 Qd7 Na5 Rf1 h1Q Qe6 h2 Rf2 Rg8 Ne4 Qa7 Qc4 Bb1 Nd2 Nd5 Nb6 Nf4 Qc1 Qdg1 Qf1 Be5 Ke3 Ng6 Bd5 Bc7 Be6 Qg4 Ng1 Qd5 Re2 h1Q Kf2 Bd6 Re3 Bc7 Rb3 Bf4 Rb2 Nh8 Rb3 Nc7 e8N Qh7 Nf6 Ne8 Ngh5 Qh6 Nh7 Rg6 Ng7 Qhh4+ Rg3 Rh6 g6 Rh5 Qh3 Rg5 Qf1 a3 Ngf3 Qgh5 Nb3 Kc7 Na1 Rc8 Nb3 Kb8 Nbd2 Rc2 Ng1 Rg4 Qe1 Ra2 Qf1 Qhd8 Rf3 Rg3 Rb3 Qg4 Rb5 Qdh4 Rb4 Qa8 Na4 Qa7+ Rb6 Rf3#
3n3r/2bkb3/1P2N1P1/3N4/1p3N1K/1RrP1bn1/NNQp1q1B/1r1rr1b1 w - - 0 1 illegal: No possible last move
1b2n1N1/Qp3P1k/Pp2n3/2bbqP1r/K1N2Bp1/q2N4/3qR3/1N1N1n1r w - - 0 1 legal: proof: e4 f5 exf5 c5 f4 g5 d4 cxd4 b4 Nh6 b5 Ng8 b6 axb6 f6 Ra5 Qf3 Ra7 Qd1 Ra8 a4 h6 g4 Ra6 f5 Ra8 Be2 Bg7 Ra3 Bf8 Rf3 h5 Rf4 gxf4 g5 Bh6 Bf3 Bf8 Bg4 hxg4 Kd2 Kf7 c4 d5 Kc2 e5 Kb3 d3 h4 e4 a5 e3 c5 d2 h5 d4 h6 d3 h7 f3 a6 e2 c6 e1B c7 f2 Nf3 f1N Rg1 Qd6 Nd4 Be6+ Ka4 Nd7 c8N Bg3 Nc2 Qe5 Rg2 Bc5 Ne3 Bd5 Re2 Nf8 Qb3 Rb8 Nd1 Ne6 g6+ Kf8 f7 Kg7 Qb2 Nf6 Nd6 Ne8 Nc4 Kh6 g7 Rc8 Nde3 d1Q+ Qc2 d2 g8N+ Kg7 Qb3 Qc2 Nd1 Qd3 Qb5 Bh2 Qc6 Qf3 Qc7 Rd8 Qb8 Qa3+ Kb5 Bg3 Qa7 Ra8 Ndb2 d1Q Bf4 Qdd4 Nd1 Qd2 Nf6 Rg8 h8N Rd8 Ng6 Rh8 Ng8 Rh5 Bg5 Kh7 Nf4 Qh8 Nd3 Bb8 Bh6 Qe5 Bf4 Rd6 N3b2 Nd8 Nd3 Rdh6 Nd6 Ne6 Nc4 Qab2+ Ka4 Rh1 Bh2 Rh5 Bf4 Qa3+
n3K2k/b1qp4/R2PnP1q/2pp1R2/q4qB1/3r2qR/b1Q1RP1n/4NR2 w - - 0 1 illegal: No proof kernel
N7/P2bNQ1P/1N5n/1pqqk1K1/1R1N1rpp/3pp2q/bn1P4/r4N1B w - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 Bb2 e6 Ba3 Bc5 Bc1 Bb6 c5 axb4 Na3 b3 Nb1 Ba7 Qe2 b5 Qd1 Bb6 cxb6 Ke7 Qg4 Kf7 Qd1 Ke8 h4 g5 Rh3 Ke7 a4 Qf8 h5 Kf7 Bd3 Ba6 Rh4 Qh6 Kf1 Bb7 Na3 Ra5 Nf3 Ra7 Qc2 Ke8 Bb2 Ba6 Rc1 Nf6 Nb1 Rg8 Re1 Rh8 Qd1 Bb7 Bc1 Ng8 Ke2 Bc8 Reh1 Ra5 Ke1 Ra8 Ng1 Qf6 Bf1 Qd8 g4 h6 Ba3 Bb7 Be7 gxh4 g5 Ba6 g6 Bc8 Bg5 hxg5 Ke2 Ke7 Ke3 Kf6 f4 c5 h6 d5 b7 g4 g7 b2 f5 c4 Kf4 e3 h7 c3 a5 c2 a6 c1Q a7 d4 Bg2 d3 Qf1 e2 Na3 e1Q Nf3 b1B Nh2 Nc6 b8N Ne5 Nc4 Nh6 Nc6 Bd7 Nd4 Rf8 Nb6 Rc8 Na8 Qc5 Bc6 Ba2 g8N+ Kf7 f6 Qg3+ Kg5 Qh3 Bd5 Nc4 Ne7 Nb2 Qf3 Rc6 Rb1 Ra6 Nf1 Ra3 Qf5 Ra4 Bh1 e5 Qf4 e4+ Qf5 Nc4 Rb4 e3 Nc8 Nb2 Ncb6 Bd5 Qf4 Ra1 Qf2 Ba2+ Qf5 Qe8 Qd5+ Qe6 Qf5 Ke8 f7+ Ke7 Qd5 Rb8 Qf5 Kd6 f8N Qed5 Ng6 Rf8 Ne7 Rf7 Kg6 Rf8 Qf7 Ke5 Kh5 Qc8 Kg5 Qcc5 Qe8 Rf3 Qf7 Rf4
BQ1RK3/rr1B2P1/2Q4R/6r1/nq2rPr1/2n3kr/qqbPQ3/1R3q2 w - - 0 1 legal: proof: c4 d5 b3 dxc4 a4 f5 Ba3 b5 axb5 e6 Bc5 e5 f3 e4 Bf2 e3 Qc1 exf2+ Kd1 Nd7 Kc2 Rb8 Qd1 Ra8 Kc1 Nb8 e4 g5 f4 g4 e5 Qg5 Nc3 Qh4 Ne4 fxe4 Qc2 Qg3 Kd1 Qc3 Ke2 Qd4 Qd1 Qd8 h4 Nd7 Nf3 Bh6 g3 Bg5 hxg5 Ba6 g6 Qb8 Qb1 gxf3+ Kd1 Nc5 g4 Nd7 g5 Qd8 Kc1 Nb8 Qc2 Bb7 Qd1 Bc8 Kb2 Kd7 Kc3 Ke6 Kb4 Kf5 Kc5 Kg4 e6 a5 e7 h5 e8Q c3 b4 e3 b6 e2 b5 e1R g7 c2 b7 c1Q+ Qc2 a4 g6 h4 b6 h3 Qe2 h2 Qcc4 a3 Bg2 f1Q Rb1 a2 Qe8 a1Q Qe2 Ra7 Qc3 Rh5+ Qe5 f2 Bf3+ Kg3 Rb2 Bf5 Ra2 Rg5 Qd6 Re4 Rc2 Nf6 g8B Qf8 g7 Qa2 Qb3 Nbd7+ Kc6 Nd5 b8R Nc3 b7 Qcb2 Rc1 Nc5 Qd4 N5a4 Qd1 Qfb4 Bh7 Bg6 Kd7 c5 Qf6 c4 Rb1 Rg4 Bg2 Rg5 Rg1 h1R Rd8 Rh3 Qe2 Rg4 Qd1 Re6 Rh1 Rh5 Ra1 Nd5 Qb3+ c3 Rh8 Re3 Be4 c2 Bf5 Rhg5 Rh6 Qfc4 Rb1 Qe2 Qc4 c1R Qe7 f1R Rd8 Rh1 Be4 Bf5+ Ke8 Qf1 b8Q Rh3 Qd7 Rc2 Qe2 Rcc7 Bg8 Ndc3 Be6 Bh7 Ba8 Rcb7 Qc6 Be4 Bd7 Bc2+ Qe5 Rd3 Qed6 Rd4 Qb8 Re4+
1k1r4/b4qRK/2r2PPB/3p4/1p2Qr1Q/QR2B3/qP2Bn2/1rb1n1q1 w - - 0 1 legal: proof: e4 c5 a4 g5 h4 gxh4 d4 cxd4 Be2 f5 exf5 a5 Bf4 b5 Bd3 b4 Bf1 Ba6 Ra2 Bb5 axb5 a4 Ra1 a3 Nc3 a2 Na4 Rxa4 Bc1 Ra3 Nf3 Ra8 Ne5 Qc7 Nc6 Qc8 Nd8 Qxd8 Kd2 d5 Kd3 Kd7 f4 Kc8 c4 e5 g4 h5 b6 e4+ Kd2 d3 Ke3 h3 g5 d2 c5 h2 f6 h4 f7 h3 f5 Ra6 Kf4 e3 g6 e2 c6 e1B f6 Qd7 Kg5 Bf2 c7 Bh6+ Kh5 Nc6 f8B Ne5 Bb5 Qf7 Be7 Nf3 Bc5 Ne1 Qe2 d1R Qe4 Rd4 Be2 Kb7 Rg1 h1Q Rg3 h2 Rb3 Qg1 Be3 Ka8 Bf8 h1R+ Qh4 Bg5+ Bh6 Rf4 Rc1 a1Q Rcc3 Rd4 b7+ Ka7 c8Q Qa2 Qch3 Rc6 Q3g4 Kb8 Qf3 Rf4 Qe4 Ra6 Rc7 Rc6 Bd2 Ba7 Be3 Ne7 Rd7 Nc8 Re7 Rd8 Rc7 Qg8 Rg7 Qf7 Bf2 Nd6 Be3 Kc7 b8Q+ Kd7 Qb6 Kc8 Qa5 Kb8 Qc2 Ne4 Qa3 Nf2 Qe4 Rf3 Bc5 Bc1 Bce3 Kc8 Bhf4 Kb7 Kh6 Ka8 Bg5 Rf4 Kh7 Kb8 Bh6 Rh3 Bd4 Rd3 Be3 Rd1 Qg4 Bd2 Qg5 Rb1 Qh4 Bc1
qknb3b/2r2R2/3QbBq1/5rnP/1nQB1PP1/3BnRqb/7K/b5Q1 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 f4 h5 Nd2 g4 Ndf3 gxf3 g4 h4 Ne2 Qc7 Ng3 hxg3 Ra2 Qb6 Ra1 Qd8 h4 a5 b4 d5 c4 Kd7 h5 Kc7 c5 e5 c6 a4 Ra3 d3 Qe2 d4 Rh3 f2+ Kd2 e3+ Kd1 d2 Qe1 g2 Ke2 g1Q Kf3 d1N Bg2 f1B Kg3 e2 Rd3 e4 Bb2 e3 Qd2 e1B+ Qf2 a3 Rh4 a2 Rd2 a1B Ba3 d3 Rh2 e2 Rc2 d2 Rh1 Be6 Rh3 Ra5 Bb2 Ne7 Bf6 Na6 b6+ Kb8 b5 Rh7 b7 Nb4 Rc4 Ne3 c7+ Ka7 c8Q d1Q Rc3 Qc2 Rc7 Bg7 Rd7 Qd3 Qc4 Nc8 Rf7 Kb8 Bd4 Qe8 Bf6 Qh1 Be4 Bh8 Bg6 Bec3 Qg1 e1N Be4 Qf3+ Kh2 Be5 Rg3 Bh3 Bf5 Qfc6 Rf3 Bc7 Bg6 Qb3 Bd3 Bd8 Bd4 Qf8 Bf6 Qe4 Bd4 Qg6 Bf6 Ka7 b8B+ Ka8 b6 Rf5 Bd6 Qe8 Bc5 Kb8 b7 Qea4 Rf8 Rc7 Rf7 Qa8 Bb6 N1g2 Bbd4 Nh4 Qcc1 Qc3 Qc2 Qe1 Qc4 Qg3+ Kh1 Rb5 Rf1 Nf3 Rf2 Ng5 Rf1 Rcc5 Rf3 Ka7 b8Q+ Ka6 Qe5 Rc7 Qd6+ Kb7 Rf2 Rf5 Rf3 Qe1 Kh2 Kb8 Qc1 Qh4 Qc4 Qg3+
k1nK1b1q/rn1QR3/3b3N/3r1Pqr/1P1Q3r/5R1r/5NP1/Nn1R2bb w - - 0 1 illegal: No proof kernel
2b2rrq/1NrbP3/4n2N/3K2kP/Q1b1nNn1/4bb2/2RQnP2/1qQ2R2 w - - 0 1 legal: proof: e4 e5 a4 c5 g4 h5 d4 exd4 e5 hxg4 Ra2 f5 Bg2 b5 Be4 fxe4 axb5 c4 Bd2 c3 Kf1 cxd2 Ra4 Rh4 Ra1 Rh8 Ke2 Kf7 c4 Kg6 b4 d5 h4 a5 e6 a4 h5+ Kg5 c5 e3 Kd3 g3 c6 e2 e7 e1R c7 a3 b6 g2 b7 a2 b5 Nf6 b6 Ne4 Qb3 d1B Rh4 Nc6 b8Q Bdg4 b7 Rc1 Nd2 Rg8 Rh2 Bgd7 Qa3 Ne5+ Ke2 d3+ Ke3 Ng4+ Kf3 d4 Nf1 d2 Ne2 g1Q Nf4 d1B+ Ne2 d3 Rh1 d2 Rh2 Bb3 Qa4 d1B Ne3 Bc4 Nf5 g6 Rh1 Bh6 Rb1 a1N Rb2 Nb3 Rc2 Nbc5 Qba7 Ne6 b8Q Qe1 Qb2 Qb4 Qba3 Qb1 Rf1 Qf8 Q7c5 Qf6 Qd5 Qh8 Kg2 Rf8 Nf4 Bde2 Qd2 Bf3+ Kh3 Bg7 Nh6 Bd4 Qa1 Be3 Qb2 B8a6 c8N Rb8 Na7 Bac8 Nc6 Rg8 Nd4 Ne5 Nde2 Bb3 Qad4 Bh1 Ng2 Bb7 Qc4 Nf6 Kg3 Rbf8 Rd1 Bbc8 Ne1 Bf3 Qa4 Bbd5 Qba3 Bb3 Rb2 Rc7 Rc2 Bc4 Nf7+ Kf5 Nd3 g5 Nc5 g4 Nh6+ Kg5 Qac1 Bfd5 Nf4 Bdb7 Kh2 g3+ Kg1 Neg4 Rf1 Rc6 Kg2 Rc7+ Nd5 Bbc6 Kf3 g2 Nb7 g1N+ Kg2 Ne2 Kf3 Nh7+ Ke4 Nh2 Na5 Nf6+ Ke5 B6b7 Nf4 Bf3 Nb7 Nhg4+ Kd6 Bd3 Qab4 B3b5 Qa4 Ne4+ Kd5 Bc4+
1N1rq1rQ/4n3/1Kb2nr1/1qN5/1P2P2B/1B1q4/1br1kNPQ/1Bqr1r2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 e5 e4 d3 Rh3 g5 Re3 gxh4 a4 f5 Ra3 b5 axb5 f4 Rc3 fxe3 Rc4 Be7 Rd4 exd4 Na3 Bc5 Nb1 Bf8 f4 Ke7 c4 Ke6 f5+ Ke5 c5 Kf4 b6 h5 b7 a5 f6 d5 f7 h3 c6 h2 c7 h1R Qa4 h4 Qa3 d2+ Ke2 d1R Qb2 a4 Qa3 h3 Qb2 h2 Qd2 a3 Kd3 a2 Nf3 a1Q Bb2 Bd7 c8B Qa6+ Kc2 d3+ Kb3 d4 Ng1 Bc6 Ba1 Rh6 Na3 Bg7 f8N Ne7 Bb2 Qe8 Nc2 Nd7 Bc1 Qb5 Qc3 d2 Na1 Rg6 Bd3 e2 b8Q+ Ke3 Nh3 e1Q Bb1+ d3 Nf2 Nf6 Be6 Ke2 Nd7 Rf1 Qg3 h1R Qh2 Ra2 Nb8 Rc2 Ka3 Bh8 Nb3 Rg8 Qce5 Bg7 Qh8 Rh6 Nc5 Rg6 Qc7 Nd7 Qch2 Bb2+ Kb3 Nf6 Bc4 Rh1 Bf7 Qg1 Bc4 Rf1 Be6 d1Q Bg5 d2 Bh4 Qc1 Bd5 d1R Be6 Rd7 Bf7 Rfd1 Bd5 Qf1 Bf7 Bb7 Bd5 Qd3+ Ka4 Rd8+ Ka5 Bc6 Kb6 Rg1 Bb3 Rh1 Nh3 Qf5 Nf2 Rhf1 Qg7 Qfd5 Qh7 Q5c4 Qh8 Qb5+
Q2b1B1B/1nq1r1Pr/1b1p1N1n/N3P1b1/Q3n1B1/1q1b2r1/1P6/1Nk1Kb2 w - - 0 1 legal: proof: d4 d5 h4 g5 c4 gxh4 a4 dxc4 d5 b5 axb5 Ba6 Ra2 Bb7 Ra1 Bc8 e4 f5 g4 Kd7 d6 Ba6 e5 Ke8 d7+ Kf7 Ra2 Bb7 Ra6 Bc8 Rd6 exd6 Rh3 Ke6 Re3 Ke7 Re4 fxe4 f4 Ke6 b6 c5 b7 a5 g5 Kf5 g6 h5 Ne2 c3 Qc2 a4 Qd3 c4 Kd1 h3 Qc2 h4 Nd2 a3 Qa4 a2 Ke1 a1Q Nb1 h2 Bg2 h1B Qb5 c2 Qb3 e3 Nbc3 h3 Nb5 h2 Na3 c3 Qb4 Be7 Qa5 Qa2 Qd5 Nc6 b8Q Na5 Kf1 Ra7 Qd1 Ba6 Qb4 Bd3 Qb3 Rh7 Bd2 c1R Bb7 c2 Qb5 Qb3 Qe1 Qc8 Nc4 Bd8 Bf3 Qc5 Bg4+ Ke4 f5 Rb1 f6 c1B f7 Rc7 f8N Nb7 Na3 Bf3 Qd1 h1N Qe1 Nf2 Nc4 Qb6 Qa6 Qc6 Qa8 Bg2+ Kg1 Ra1 Nc3+ Kf4 Na5 Ne4 Bh3 Kf3 Be6 e2 Bh6 Bf4 Bg4+ Ke3 Bg7 Qcc4 Bh8 Nh6 g7 Bfg5 Qb1 e1B Qa2 Kd2 Qa4 Rd1 Nb1+ Kc1 Qc6 Bf3 Qa4 Bfe2 Kg2 Qf7 Kg1 Bf2+ Kg2 Bdf6 d8B Bb6 Nd7 Rh1 Be7 Bf1+ Kf3 Rg1 Bf8 Bd8+ Nf6 Qfc4 Qc8 Re7 Qa8 Nec5 Kf2 Rg3 Ke1 Ne4 Qb4 Qcc2 Qa4 Qc7
8/k1b2p1K/r2nBP1b/1Rn2Prb/3Rqb2/QR4Pr/1B5n/B3b1qQ w - - 0 1 legal: proof: c4 g5 b4 d5 e4 dxc4 f4 a5 f5 axb4 Nh3 Qd6 Nf4 Qf6 e5 gxf4 exf6 h5 Nc3 h4 g3 h3 Nd5 Kd8 Ne3 Ke8 Ng2 hxg2 Ke2 Kd8 Kf3 g1Q Ke4 c5 h4 Kc7 d4 Kb6 a4 e5 a5+ Ka7 d5 b5 a6 c3 h5 c2 d6 c4 h6 c3 d7 b3 d8Q b2 h7 b1Q Qc7+ Bb7+ Qc6 b4 Qe1 f3 Bh6 c1B+ Bd3 f2 Ra5 f1N Qd2 b3 Rd5 c2 Rd4 b2 Qa5 Nh2 Qa3 Bf4 Bg5 Bh6 Bc4 Ne7 Be6 Rg8 h8B Nd7 Bg7 Nc8 Bf8 Rg7 Bb4 c1B+ Rd3 Bce3 Bc3 Bb6 Qd5 Qbe1+ Re3 b1R Ba1 Qe2 Qc6 Qg4 Rb3 Bc7 Rb5 Nf3 Rh4 Nh2 Kd3 Nd6 Qh1 Bf3 Rb3 Bc1 Bd2 Qb4 Rd4 Rg5 Bdc3 Bf4 Bcb2 Qb7 Rb5 Bh5 Rb3 Rc1 Rb5 Rh8 Rb3 Rc6 Rb5 Ka8 a7 Ra6 Rb3 Ng4 Rb5 e4+ Ke2 e3 Rb3 Ne4 Kf3 e2 Rb5 e1B Rb3 Qb6 Rb5 Kb7 a8R Ndc5 Rb8+ Ka7 Rb3 Qb4 Rb5 Nd6 Rd1 Be3 Rd4 B3f2 Kf4 Nh2 Qa2 Qc4 Qa3 Be3+ Ke5 Bg7 Qa4 Bg4 Qa3 Rg6 Rd2 Rh3 Rd5 Bh5 Rdd3 Bd4+ Kf4 Bf8 Rd1 Rg8 Rdd3 Bg7 Kg5 Be5 Rd5 Qe4 Rd1 Bh8+ Kh6 Bg7+ Kh7 Bf4 Rdd3 Bgh6 Rd4 Rg5
n1n3N1/k4bb1/qn2qNb1/1PRPr2Q/4p1Qr/3rr3/PR6/1nQ2RK1 w - - 0 1 legal: proof: e4 g5 h4 gxh4 c4 a5 b4 f5 Be2 fxe4 Bf3 Nc6 Ba3 Nb8 b5 d5 Bb4 axb4 cxd5 Nf6 Bg4 Ng8 Bd7+ Kf7 Bc6 bxc6 Kf1 Ke8 Ke2 Bh6 Ke1 Bf8 Kf1 Kd7 f4 e5 g4 h5 d4 e3 g5 c5 d6 c4 d5 c5 f5 b3 g6 b2 g7 e2+ Kf2 e1Q+ Kg2 c3 f6 h3+ Kh2 c2 f7 c1R Qe2 c4 Qe4 c3 Qb4 c2 Qa5 h4 Na3 b1N Qb6 Na6 Qb7+ Nc7 Ne2 Qf6 Ng1 Rd1 Qb6 c1N Qb8 Rh5 Nc4 Rd3 Qb6 Ne2 Qa5 Ne7 g8Q Bg7 f8Q Nec3 Na3 Na4 Qd2 Nb6 Nc2 Raa3 Ne2 Nca8 Nf4 Re3 Qh8 Rad3 Qc1 Qa5 Qfg8 Qa6 Nb4 Qe6 Kg1 h2+ Kf1 h3 Nc6 Rh4 Nh5 e4 Rg1 h1B Rg2 h2 Rb2 Bf3 Kf2 h1R Qh6 Bf6 Qg4 Bg7 Qh8 R1h3 Kg1 Bd1 Qh7 Rhf3 Qhg6 Rf5 Qf7 Re5 Qff3 Bb7 Nf6+ Kc8 d7+ Kc7 d8R Nec8 Ne7+ Kb8 Rd6 Ka7 Neg8 Bc6 Qh5 Bd7 Rc6 Be8 Rc5 Bf7 Qff5 Bg4 Qf4 Bf5 Qfg4 Nd2 Qc2 Bh7 Rf1 Bhg6 Qc1 Nb1
1b1nr2B/b1PB1bnN/4Q3/8/r1B4q/2pP3N/bnNnp2P/Q1Kr1k2 w - - 0 1 illegal: No possible last move, all moves rejected
1bB3R1/P7/1Pb1QK2/BR6/2pq3k/P2qrp2/1Q2Bq1b/nnr1Q1qb w - - 0 1 illegal: Other
1nR1r3/1BBn1pQ1/1r6/n1Q2Qp1/nKP3BP/3b2q1/3RnqPq/2k4n w - - 0 1 illegal: No proof kernel
1Rb1bb2/4Pn2/QR1NPqk1/2q1np2/1rpN1P2/K1b5/n1q2n1Q/N4Q2 w - - 0 1 legal: proof: h4 g5 b4 gxh4 d4 b5 e4 e6 Bc4 a6 Bd5 exd5 c4 bxc4 b5 a5 Ba3 Ra6 Bb4 Re6 b6 Re5 dxe5 axb4 Kd2 h5 Kc1 f5 Kb2 Kf7 a4 c5 f4 h3 g4 h2 a5 b3 g5 d4 e6+ Kg6 a6 d5 b7 d3 a7 c3+ Ka3 c2 a8Q c1B+ Ka4 c4 e7 d2 e5 h4 Na3 b2 Qe1 b1N Nc2 d1N Qf1 d4 Nf3 d3 Nb4 d2 Rg1 h1B Na2 h3 Nd4 h2 Nb4 Bb2 Nbc2 Nc6 b8Q Nh6 Qa6 Bc3 Qb2 Nf2 e6 d1Q Ra3 Qd6 Rb3 Nf7 Na1 Nce5 Qa2 Qd3 Rb6 Qc5 Rg3 Qe2 Rh3 Rg8 Rh8 Ba8 Qc2 h1Q Qd2 Qh4 Qb2 Kg7 g6 Bf3 Qc2 Bh5 Qb2 Kf6 g7 Kg6 Qc2 Qf6 Qd2 Na3 Qa2 Nc2 Qb2 Nb4 Ka3 Nh1 Qc2 Qd3 Qh2 Qd2 Rh7 Rh8 g8N Qc2 Nh6 Rg8 Rh8 Nf2 Rh7 Nd8 Nf7 Na2+ Rb4 Rh8 Nd6 Rg8 Rh8 Ndf7 Qa7 Bf3 Qa6 Bc6 Rh3 Be8 Re3 Qd5 Rb8 Rh8 Re1 Rh3 Reb1 Qc5+ R1b4 Re3 Rb6 Re1 Rb8 Rb1 Rb6 Qc7 R4b5 Rb4 Rb8 Qc6 R5b6 Qc5
qn1R4/1Pb5/3B2Q1/4Q1bK/1rp1PB1R/2pp1bR1/r1bP2n1/b1k2nB1 w - - 0 1 illegal: No possible last move, all moves rejected
Bnb1nr1r/3k1P1p/1K3Q2/rN1pq3/BbP1bqP1/p4Q2/Q7/B5bN w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 e5 h4 f5 d4 exd4 e4 g5 b4 gxh4 e5 c4 Rh3 Qb6 Rd3 Qd8 Raa3 Be7 Re3 Bf8 Rad3 cxd3 Re4 fxe4 Kd2 a5 c4 a4 f4 h3 e6 a3 f5 d6 f6 h2 e7 h1R f7+ Kd7 e8B+ Ke6 b6 Qc7 b7 Ra5 b5 Nf6 b6 Bg7 Bc6 Ne8 Bg2 Be5 Qf3 Bh2 Ne2 Re1 Ba4 Qc5 Ng3 Qe5 Nc3 Rf8 Bb3 Kd7 Bb2 Rh8 Nb5 Re2+ Kc1 d2+ Kc2 e3 Kd3 d1B Ba4 Re1 Ba1 e2 Nh1 Bc2+ Kd2 d3 Qf6 Qf4+ Kc3 d2 Kb4 d1Q Bd5 Ra7 Be4 Qd4 Bd5 Na6+ Ka5 Be4 b8Q Qde5 Ba8 d5 b7 Rb1 Kb6 e1B Bd1 Bb4 Ba4 Qe7 Qbe5 Nb8 Qb2 Ra5 Qg2 Qee5 Qa2 Nc6 b8Q Rf8 Bb7 Re1 Qa7 Nb8 Ba8+ Nc7 Qe2 Rh8 Ng3 Bf3 Qf1 Qb2 Nh1 Ree8 Qe2 Be4 Qf3 Bd2 Kc5 Ref8 Qg7 Qbe5 Qb6 Qh5 Qb2 Ne8 Qa2 Qhe5 Qf6 Bb4+ Kb6 Bg1+
5bb1/1Pbn3Q/1nK3q1/3nN2p/Qbp1Qr1P/N1P1Bp2/Nk6/2rB2q1 w - - 0 1 legal: proof: e4 a5 a4 d5 f4 dxe4 f5 b5 axb5 g6 Kf2 gxf5 Ke1 f4 h4 a4 b4 a3 g4 Bg7 b6 Bxa1 b5 Bg7 Rh3 Bf8 Rd3 Nh6 Rd5 Ng8 Rg5 Nf6 Rg8 Nxg8 Kf2 Kd7 d4 Ke6 b7 Kd5 g5 c5 b6 f5 g6 h5 g7 e5 Kg2 a2 Qg4 a1Q Bd3 f3+ Kg3 e3 Bb5 e2 Bd7 Kc4 d5+ e4 Kf4 e1B d6 f2 Qg6 f1N Be8 e3 d7 e2 Qh6 Nd2 Qg5 Ne7 Na3+ Kc3 Ke5 f4 Kd6 f3 g8Q Bg3+ Qf4 e1B Qh7 Ra4 Bg6 Qe8 d8Q Bh2 Qd7 Nd5+ Qde7 Nd7 b8N Nc4+ Kc6 Qb1 b7 Ncb6 Be3 Kb2 Qee4 Bb4 Ne2 Qg1 Nc3 Qf7 Qg4 Bc7 Na2 Rg8 Bf5 Qg6+ Be6 Rg7 c3 Rf7 Qe5 Rf4 Qe4 N5f6 Bb3 c4 Bd1 Nfd5+ Qge6 Nc5 Qd6 Be6 Nd7 Bg8 Ne5 Ncd7 Qe6 N5f6 Qe8 Ra5 Bc2 Rd5 Qa8 Rd1 Qa4 Rc1 Bd1 Nfd5+
8/kPq1P1p1/N1npQ1Br/2r1q2b/n1q2p1n/BNb3qP/Q4B1K/N7 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 f5 cxd4 e4 f6 b4 Qa5 h3 Kf7 Ra3 Qb6 Rf3 Qd8 Rf4 Ke8 Rh2 Bd6 Re2 exf4 e5 Bc5 e6 Bf8 Re5 fxe5 Kf2 a5 Kg2 e4 c4 a4 f6 g3 b6 a3 b5 d3 c5 d2 c6 e3 b7 a2 c7 a1Q b6 e2 Qb3 d1N Nd2 e1Q Ne2 Rh6 Bb2 Bb4 e7 d6 f7+ Kd7 f8N+ Kc6 Ne6 Bc3 Bc1 Qa6 Qb2 Qc4 Qa2 Ra5 Nc5 Nb2 Na6 Bg4 c8Q+ Qc7 Qe6 Na4 Ba3 Rc5 Nb3 Bh5 Nec1 Qe5 Bd3 Kb5 Bg6 Nc6 Kg1 g2 Na1 Ka5 b8B Kb5 b7 Ka5 Qg4 Kb6 Kf2 g1Q+ Kf3 Qd1+ Kg2 Qde1 Qe6 Qg3+ Kh1 Rh8 Ncb3 Nh6 Bb1 Nf5 Ba7+ Kb5 Bc2 Nh4 Bg6 Rh6 Bb6 Rd5 Bf2 Rc5 Qg8 Kb6 Qe6 Qgg5 Kh2 Ka7 Qd5 Qg4 Qe6 Qg3+
1n1Q4/KpP4R/n1b2p2/2q1BB2/n2B1P1p/k1r1R1P1/2n2Q1q/1Qb2r1r w - - 0 1 legal: proof: d4 a5 b4 axb4 Qd3 c5 Qd1 cxd4 e4 h5 Be3 d5 exd5 h4 Bc1 h3 g3 g5 Na3 Ra6 Nf3 Ra8 Nc4 Kd7 Nh4 Nh6 Ne3 Ke8 Neg2 hxg2 Nf3 Ng4 h4 Nh6 h5 Ng8 Nh4 gxh4 Kd2 Kd7 Kd3 Kd6 Kc4 g1Q Kb5 e5 f4 b3 a4 b2 c4 b1N a5 e4 a6 f6 a7 d3 h6 e3 h7 d2 Ra3 e2 Re3 e1N Bd3 Na6 Bf5 Qe7 Kb6 Qh2 Bb2 Nc2 Bd4 Bd7 Rhe1 Nc3 Qb1 d1R R1e2 Re8 a8Q Na4+ Ka7 Rh1 Qd8 Rf1 Qdb6+ Bc6 Q6b2 Qc7 Re7 Qa5 R2e3 Qc5+ Qb6 Rh1 Rf7 Ne7 Rg7 Rg8 h8Q Rc8 Rh7 Rg5 Bd3 Re5 Bf5 Ng6 Qg8 Be7 Qh8 Nf8 Qg8 Nd7 Qd8 Qa3 Q6b2 Re6 Be5+ Kc5 d6 Ndb8 d7 Rd6 Q2a2 Rdd1 Qab2 Rdf1 Bd4+ Kd6 c5+ Kd5 Be5 Kc4 Bd4 Qb3 Be5 Kb4 Qd4+ Ka3 Qd2 Qc3 Qf2 Be4 c6 Bb4 Qa5 Bf3 d8B Bc5+ Bb6 Bd4 Re2 Be3 Bbd4 Bc1 Qab6 Qc5 c7 Rd8 Re1 Bc6 Re3+ Qc3 Qd2 Rd5 Qf2 Rc5 Q6b5 Rc4 Qd5 Rc5 Qd8 Rc4 Bd3 Qb4 Be4+ Rc3 Bf5 Qc5+
3KNQR1/rq2p1n1/RR1PPPb1/1r1p2k1/3Q2r1/p4q1r/Qq1Nrn2/8 w - - 0 1 legal: proof: g4 f5 a4 g5 h4 b5 Nf3 bxa4 Ng1 Bh6 Nc3 fxg4 Nb1 g3 Bg2 g4 Bf1 Bg5 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 c4 d5 d3 d4 Bd2 Ba6 Ba5 Bc8 Bc3 dxc3 d4 c6 d5 Qc7 d6 Qb6 Bg2 Qd8 Bd5 cxd5 e4 Kf7 Ke2 Kg6 Kd3 a5 Kd4 h5 Kc5 h4 f4 c2 b4 c1R b5 g2 e5 g3 b6 a3 b7 a2 Qe2 h3 Qe1 h2 Na3 a4 Qd1 Rb1 Qd4 Na6+ Kc6 Nc7 b8Q Ra7 c5 Ne8 Qbb2 Rh3 Nf3 g1R Nb5 g2 Nd2 Bf5 e6 Rge1 Nc7 Ng7 Ne8 g1R Qc2 Kh5 g6 Nh6 Qcc4 Bd3 f5 Rg4 f6 Re2 Qb3 Rb2 Rhb1 h1Q Qa3 Rb8 Rb6 Qf3 Qb3 Kg5 Qbb2 Nh5 g7 Bg6 g8R Ng7 Qc2 Rbb7 Qb1 Qa8 Qc2 Ra6 Qb1 Rb8+ Kd7 Ra5 c6 Qb7+ c7 Ra7 Ra6 a3 Qbb2 Rgh4 Rb1 a1Q Qa2 Ng4 Rbb6 Qb1 Rc6 Q7b2 Rcb6 Rbb7 Kc8 Nf2 Kd8 Rg4 c8Q Rb8 Rc6 Rb4 Rcb6 Rb5 Rb8 Rf4 Nc7 Qb4 Kd7 Q1b2 Qf8 Rc5 Kd8 Rg4 Ne8 Qb5 Rb7 Qc6 Rb4 Qb7 Rbb6 Rb5
2n3b1/1pq1Nr2/1P3R2/Q4rR1/QR2q1P1/b1b2P2/1bNN1bpp/K1kq4 w - - 0 1 illegal: No possible last move
qb1rN1rq/p1N1rk2/1nN5/2Qp3r/PP2pP1Q/2K3RR/4rQq1/5n2 w - - 0 1 legal: proof: d4 e5 e4 exd4 c4 b5 e5 bxc4 e6 f6 Be2 h5 Bf4 Bd6 Bg4 hxg4 Be5 fxe5 f3 Bb7 f4 Bf3 gxf3 Bf8 Kd2 c5 h4 d5 a4 g5 b4 e4 h5 d3 f5 g3 e7 g4 f4 c3+ Ke3 g2 h6 c4 Kd4 d2 f6 g3 h7 c2 Rh4 c1R Rh1 c3 Ra2 c2 Kc3 Nh6 Kd4 Nf5+ Kc3 Ne3 Kb3 Kf7 e8N Nd7 Qf1 d1Q Nf3 g1Q Qe2 g2 Qf2 Nb6 Rb2 Qd4 Ra2 Nf1 Na3 Bd6 Nb5 Re1 Nbc7 c1R Ra3 Re2 Rh3 Qh1 Rg3 g1R Rh3 Qa1 Nd4 Qg2 Nc6 Rh1 Rg3 Rg8 h8Q Rh5 Qh6 Qc8 Qg5 Qb7 Qh4 Rd8 Rh3 Qc8 Rg3 Qa8 Rh3 Kg6 f7 Qh8 f8Q Be5 Q8c5 Kf7 Ne6 Bb8 N6c7 Rcc2 Rg3 Rg7 Rh3 Rb2+ Kc3 Rb3+ Kd4 Rbg3 Re3 R3g6 Kc3 Re6 Ref3 Re7 Rfg3 Rg8+
n2K4/r3rB1P/1p3k1P/2P5/B2n4/1p1QBbbN/3Np1qp/1rQQb1r1 w - - 0 1 illegal: No proof kernel
1r4Q1/p1Q1pq1n/1R3B1n/KPR5/1p2P3/1bq2Ppb/r1k5/nn3BBR w - - 0 1 legal: proof: b4 b5 g4 c5 a4 bxa4 h4 f5 c4 g5 b5 Bh6 Bg2 fxg4 Na3 g3 Nc2 g4 Nb4 Bf4 Nf3 Bg5 hxg5 d6 Bf1 cxb4 c5 d5 Ne5 Bb7 Nc4 dxc4 Rh3 Ba6 Rh1 Bc8 d4 Kf7 Kd2 Ke6 c6 Kd5 c7 Ke4 d5 h5 g6 c3+ Kc2 h4 e3 a3 Kb3 h3 Ka4 c2 d6 a2 d7 g2 g7 g1N Rh2 g3 Qe2 Nf3 Ka5 Nh6 g8R Nd2 Rg7 Qf8 d8B Qf7 Rg5 Nd7 Rh5 Rb8 Rb1 a1N Bb2 c1Q Bf6 Nf8 Rc5 Qc3 Rh1 h2 Rc1 Nb1 Qa2 Bh3 c8Q Nh7 Bb6 Rd8 Qc7 Rd2 Rd1 Rc2 Rd6 Re2 Rdc6 Kd3 Qc4+ Kc2 e4 Be6 f3 Bd5 Qd4 Bb3 Qdd8 Rd2 Qg8 Rf2 Rg1 h1B Rd6 Bg2 Rh1 Bh3 Rg5 Rg2 Bg1 Kc1 Rc5 Rb2 Ra6 Kc2 Rb6 Ra2#
1bQ3r1/1P3K1P/np2pB1B/N1q2p2/b2qP2b/4NBpb/5N2/k2nq2Q w - - 0 1 legal: proof: f4 g5 a4 a5 b4 axb4 g4 gxf4 g5 h5 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 c4 d5 h4 b6 c5 Rh5 c6 Rh8 Rh3 Ra6 Rc3 Ra7 Rc4 Rb7 cxb7 dxc4 Kf2 Kd7 d4 Kc6 e4 f5 h5 e6 g6 c3 g7 c2 h6 f3 Kg3 b3 Kf4 g3 Ke5 b2 h7 f2 d5+ Kc5 d6 Kb4 a5 Kb3 a6 Ka2 d7 c5 a7 c4 a8N c3 Qf3 Nh6 g8Q Bd6+ Kd4 Na6 Qh1 Ka1 Be3 c1Q Bg2 f1B Nc7 c2 Bf3 Ng4 Na3 b1Q Nd5 Nf2 Nc4 Bh3 Na5 Nd1 Bh6 Bb8 Ne3 Qb5 Qf8 Rg8 Qc5 Qb4+ Qc4 Qdf8 d8B Bd7 Bf6 Qe1 Qc7 Qfb4+ Ke5 Qc4 Kd6+ Qd4+ Ke7 Ba4 Kf7 Qa3 Qc8 c1B Be2 Qc5 Bf3 Bf1 Nh3 Ba3 Nf2 Bh3 Bh4 Bb4 Bf6 Bd2 Neg4 Bg5 Ne3 Bh4
1kn1Q3/R1nPRqbR/1r2Q3/bp6/1P1N1pb1/3npP1r/qnNK4/3N1q2 w - - 0 1 legal: proof: e4 a5 b4 c5 h4 g5 e5 gxh4 e6 c4 Qe2 c3 Qf3 a4 Bb2 cxb2 Qd1 dxe6 Be2 e5 Bc4 e4 Bb3 axb3 c4 Kd7 d4 Kc7 g4 f5 a4 e5 a5 h5 d5 b5 c5 h3 c6 f4 a6 h2 a7 e3 f3 e2 g5 h4 g6 e4 g7 h3 Qc1 Ne7 g8R Bg7 Nc3 b1Q Ra2 b2 Ra1 Bg4 Rf8 Qa2 Rf7 b1N Rf5 Nc8 Rf7+ Qe7 Qb2 Nd2 Qc1 Na6 Nd1 Rb8 a8Q Rb6 Qc4 Qd7 Qb3 Nc4 Re7 Nb2 Kd2 e1B+ Kc2 Rh4 Ne2 Rh5 Nd4 Bf2 Kd2 Rh4 Nc2 Bc5 Re1 h1Q Qc4 h2 d6+ Kd8 Rg1 Rh3 Qe6 Nc7 Re1 Qe8 d7 Qf1 Re2 h1N Rh2 Qf7 Qb8 Qb3 Ra7 Nf2 Qa8 Nfd3 Qb8 Rg3 Rh7 Rh3 Qa8 Rb7 Qb8 Bb6 Qa8 Ba5 Qb8 Na6 Qa8 Kc7 Qb8+ Kb6 c7+ Nd6 Qc4 Qa2 Qe8 Rb8 Qb3 Rb7 c8N+ Kc7 Qd5 Kb8 Qe6 Rb6 Rc7 Ka8 Na7+ Nc8 Rb7 Nc7 Nc6 Bh8 N6d4 Bg7 Ra7+ Kb8 Rh4 Qg8 Rh6 Qf7 Rh7 e3+
2r3k1/1P1P1b2/4q1N1/nq3Nn1/nKB1q2r/r2bbN1n/RN3QP1/Q7 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 e5 axb5 exf4 b6 d5 b5 a4 Ra3 Bxa3 cxd5 Bf8 Bb2 a3 Bf6 Qd7 Bd8 Qxd8 e4 h5 d4 c5 Kd2 f5 Kc3 Kf7 b7 h3 e5 h2 b6 a2 d6 a1N d5 f3 d7 c4 d6 f2 Qd2 f4 Qd3 h4 Qd2 f3 Qg5 h3 Ne2 Qf6 d8Q Na6 b8N Nc5 b7 Be6 d7 Rh4 Qc1 Ra3+ Kb4 c3+ Nd4 c2 Na6 Na4+ Kb5 Bh6 Nb3 Be3 Ka5 Nh6 Qb6 Kg8 Nc7 Bf7 Nc5 Qe6 Bc4 f1B Nd5 f2 Kb4 Bd3 Nd2 f1Q Nf3 Nb3 Nf4 Na5 Qa1 c1R Ng6 Qe2 Rd1 h1Q Rd2 h2 Ra2 Qhf1 Qa7 h1N Qb6 Be4 Nd3 Nf2 Nb2 Nh3 Qd4 Bd3 Qc5 Qf5 e6 Qe4 e7 Rc2 e8N Qe6 Ne1 Q2g4 Nd6 Qge4 Qd4 Rcc3 Nf5 Qe2 Ba6 Rc8 Nf3 Qe1+ Nd2 Qb1 Bc4 Bf4 Nf3 Be8 Kb5 Nf7 Qg1 Nfg5 Qf2 Qg1 Nd1 Bf7 Qc1 Qh2 Nb2 Be3 Qa1 Qhe5+ Kb4 Qb5+
kq5n/2pN2b1/PB3Q1P/2q4Q/q1n2P2/2p1QK2/6pq/rR1bqR1Q w - - 0 1 legal: proof: f4 a5 e4 b5 c4 h5 e5 d5 a3 dxc4 Be2 f5 exf6 a4 Bg4 hxg4 g3 Ra6 Nc3 Rd6 Na2 Rd4 b3 axb3 f5 Rf4 gxf4 bxa2 Kf2 Kd7 d4 Kc6 h4 Kb7 h5 g5 h6 e5 f7 b4 a4 g3+ Kg2 c3 f6 e4 d5 e3 d6 e2 d7 e1Q a5 g4 Qd6 b3 Qb6+ Ka8 Nf3 b2 Rg1 b1Q Ne5 Bg7 f8Q Qf5 f7 Ne7 Qd6 Nbc6 Qd2 Ng6 Rb1 a1Q Rh1 Qa4 Qe3 Rg8 a6 Nh8 Bd2 Na5 Qe8 Nc4 f8Q Qh5 Qf6 Bb7+ Qc6 Qb8 d8Q Qf5 Nf3 Qc5 Qh5 Re8 Rf1 Re4 Kg1 g2 Qdf6 Re6 Kh2 g3+ Kh3 g1Q Kg4 Qh1 Ne5 Qh2 Qh1 g2 Nd7 Be4 Bc1 Bc2 Kf3 Rd6 Ba3 Rd1 Bb4 Rc1 Ba5 Rd1 Bb6 Rc1 Rb3 Ra1 Rb1 Bd1+
b1nK1Q2/2Pn2qk/2P2Rr1/N1q2Bn1/6P1/n1qqb2r/3R1Q1Q/nr3Q2 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 a5 d4 axb4 Bb2 h5 Kd2 c5 dxc5 g5 Be5 f3 Bg3 h4 Nc3 hxg3 Nd5 f2 Nf4 gxf4 Kd3 d5 Kd4 f5 Ke5 Kf7 c4 Kg6 a4 b5 h4 b3 e4 f3 a5 g2 a6 f4 c6 b2 c7 b1N c5 b4 h5+ Kh7 c6 d4 h6 b3 a7 d3 Rh5 d2 Be2 f1N Ra6 f2 Nh3 g1Q Qc2 d1Q Qc1 b2 Ra4 f3 Bd3 Nfd2 Rb4 f1Q Nf4 f2 Ne2 Ne7 Kf6 Qh3 Rf5 f1N e5 Bb7 e6 Nh2 Nd4 Na3 Nb3 b1R Na5 Qd7 Rb2 Nc8 e7 Nb3 e8Q Na1 Qee3 Nf3 Rd2 Bc5 Qf2 Be3 Be4 Qc2 Qcf1 Qg7+ Ke6 Nd7 Rf6+ Qg6 Bd3 Qc3 Bf5 Rb8 a8Q Rg8 Qa7 Ba8 Qc5 R8b3 Qf8 Ng5+ Kd5 Na7 Kd6 Qf3 Ke7 Nc8+ Kd8 Qd5 Qc1 Qf1 Qce1 Qfd3 Qef1 Rg7 Qd6 Qdc5 Qdh2 Kh8 h7 Qf7 Qe5 Rg6 Qe8+ Kg7 Qg8+ Kh6 Qf8+ Qg7 h8Q+ Nh7 Qhg8 Ng5 Qd5 Kh7 Qdd6 Rb4 Qdg3 Rf4 Qgg2 Rf3 Qh2+ Rh3
nn1bbn2/3b2R1/r4RR1/2K2B1q/k1n3b1/1qQ1P1PP/2r1r3/1rNR2Q1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 g3 Ra4 exf6 Ra6 f5 Ra1 f4 Nd2 h5 Ne4 h4 Be3 Qf6 Bf2 gxf2+ Kd2 Qd8 Ng3 Qb6 Nf5 Qd8 g3 h3 Nh4 Nc6 Ng2 hxg2 Qb1 Nb8 Qe1 Nc6 Qd1 Nb8 Kd3 d5 b4 Kd7 c4 f5 b6 Kc6 h3 a5 e3 a4 b7 a3 c5 Kb5 c6 a2 c7 f3 Rc1 a1R Ne2 g1R Rc3 f4 Rc2 Bd7 c8R Ka4 b5 Ra2 b6 Ne7 Bg2 f1N Rh2 f2 Qe1 f3 Qc1 Nd2 R8c3 f1N Rb2 f2 Rcb3 Qe8 Nf4 Nc4 Ng6 Nfd2 Qe1 f1B+ Qe2 Ra6 Ne5 Qh5 Be4 Ng6 Rc2 Be7 Rh1 Bd8 Bf5 Nf8 Rbb2 Bg2 Qf2 Rb1 Rd1 Bf3 Qg2 Bg4 Qg1 Rh6 Rb5 Rc6 Rc5 Rc8 Rc6 Be8 Rf6 Rab2 Bh7 Bgd7 Bf5 Rc5 Rcc1 Rc2 Rg6 Rcb5 Rf1 R5b2 Rcd1 Ra2 Rf3 Rab2 Ke2 Ra2 Nd3 Rab2 Nc1 d3+ Ke1 d4 Kf2 Nc6 b8Q Ra2 b7 Nb6 Qf4 Na8 Qc7 Nb8 Qc3 Nc4+ Ke1 d2+ Ke2 Rab2 Kd3 Ra2 Ke4 d3 Kd4 Rab2 Kc5 Ra2 Re1 d1B Ref1 Be2 Rd1 d2 Rf2 Bg4 Rf3 Nc6 b8R Rab2 Rb6 Nb8 Rg7 Ra2 Rbg6 Rab2 Rdf1 d1Q Rf4 Qd3 Rd1 Ra2 Rd4 Re2 Rdd6 Rab2 Rdf6 Rbc2 Qd2 Qc3 Qd3 Qb2 Qc3 Qb3
1RQ2nkn/R7/1K2qpb1/3q1Pr1/1RqN2PP/3Bb3/3Q2b1/1q1rnRq1 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 e4 dxe4 Bb2 h4 f5 g6 Be5 g5 Bf4 Be6 Nc3 Bc8 Nce2 gxf4 axb5 c5 g4 cxb4 Ng3 hxg3 Ke2 e5 h4 a5 c4 a4 d4 f6 b6 Kf7 c5 b3 d5 e3 Kd3 a3 Kc4 e2 Kb5 e1Q b7 g2 c6 b2 c7 b1Q+ Qb3 e4 d6+ Be6 c8R e3 d7 a2 Rc2 e2 Rc3 f3 Rd3 f2 Rd2 Ne7 Qb2 Bh6 Rd3 Kg8 Qb3 Be3 Rh2 Ng6 Nh3 g1Q Rd6 Bf7 Rd3 Rh5 Rd1 Rg5 Nf4 Nh8 Qb2 Bg6 Ne6 Qc8 Rd4 Qc4+ Kb6 Qd2 Qb4 e1N Bd3 f1B Rf2 Bg2 Rf1 Ra5 Qb2 Rc5 Re4 Rd5+ Nd4 Qdd1 Ref4 Qf3 Qb4 Qe4 d8Q+ Qe8 Qc8 Nd7+ Ka7 Nf8 b8R Qe6 Qd2 Qbb5 Rb1 Rd8 Rb4 a1Q+ Ra4 Qbd5 Ra5 Qe7+ Kb6 Qef7 Ra4 Qb1+ Rb4 Qe7 Re4 Qed7 Re7 Q7e6+ Ka7 Qde5 Qa2 Ba8 Be4 Qd7+ Kb6 Qe8 Ra7 Bc6 Qf2 Q8e6 Bc2 Bf4 Nb3 Rd1 Nd4 Be3 Bd3 Qe4 Qg2 Q4e5 Qd2 Bg2+ Qc6 Q6d5 Qc8 Qee6+
N1nq2Rq/Q2n1r2/R2pb3/1kBP2K1/bP1R1P1n/2q1qr2/5Qbq/4R3 w - - 0 1 legal: proof: e4 b5 b4 f5 c3 fxe4 Bb2 a5 Bc4 axb4 Qe2 b3 Kd1 b4 Qe3 g6 Bc1 b2 Qe1 b3 Bf1 Bh6 Qe2 Be3 Ke1 Ba7 Qd1 Bc5 f4 g5 Be2 g4 Bf3 Bb4 cxb4 gxf3 g4 h5 g5 Bb7 Na3 Qc8 Nc4 Qd8 Ne5 Bc8 Ng4 hxg4 Kf2 b1Q Kg3 c5 h4 e5 d4 f2 a4 f1B h5 e3 Kh4 d6 a5 Kd7 a6 Kc6 d5+ Kb5 a7 e2 h6 e1Q+ Kh5 g3 g6 g2 g7 c4 h7 c3 Qd2 b2 Qc2 e4 Nh3 g1Q Ra6 e3 Rh2 e2 Ra4 Bg2 Ra6 Be6 Ra1 Ne7 g8R Nc8 Ng5 Nd7 Rg6 Rf8 h8Q Rf7 Qg7 Qd2 Rh1 Qge3 Rd1 e1N Qh7 Qdd4 Qf2 c2 Rg8 Qh8 Rd4 Qa2 Bd2 Qc3 Be3 Nf3 Re1 b1B Kg6 c1Q+ Kh6 Beh3 Ne6 Nh4 Kh5 Bc2 Nc7+ Kb6 Kh6 Be6 Kh5 Ba4 Kh6 Rb8 a8R Rb7 Kh5 Ra7 Kh6 Ra5 Ra7 Qac2 Na8+ Kb5 Ra6 Q2b2 Re4 Q1d2 Bc5 Qde3 Rd4 Bgh3 Qg3 Qh2 Qf2 Bf1 Rc6 Ra7 Ra6 Bg2 Kh5 Rg7 Kh6 Rg3 Kh5 Rf3 Kh6 Nf6 Kg5 Rf7 Qg7 Rf8 Qe7 Rf7 Qa7 Nd7+
1r2QB2/1RNQ2PP/7b/2q2n2/2bnb1QN/1p1nP2K/k3rrQ1/4rr1q w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 exf4 a4 d5 cxd5 h5 Bh3 f3 g5 g6 Bg4 hxg4 Ra3 Bc5 Rc3 Bf8 Rc6 Rh6 Rf6 Rh8 Rf5 gxf5 Bb2 f4 Ba3 Qe7 Bc1 Qd8 Kf2 Kd7 h4 Kd6 d4 c5 e3 b5 g6 f5 a5 g3+ Kf1 b3 h5 c4 h6 b2 h7 f2 Kg2 f1R a6 f3+ Kh3 f2 a7 c3 Qe1 g2 Ne2 g1Q Rh2 c2 Nf4 b4 Nd2 b1B Nd3 b3 Qd1 f4+ Qg4 f3 Bb2 c1N Ne5 Nd3 Rg2 Ba6 Nd7 Qb6 Nf6 Qc5 Ba3 Bh6 g7 Nc6 Ne8+ Ke7 Rh2 Re1 Nc7 f1R Rf2 Kd6 Bb4 Rc8 a8Q Nge7 Ba3 Nf5 Qb7 Kd7 d6 Bc4 d5 Nd4 Qa8 Re2 Bb4 Rcf8 Qa2 Kd8 d7 Ke7 Qc2 Kd6 d8Q+ Ke5 d6 Rfe1 d7 Kd6 Rf1 f2 Nf3 Rf7 Qa8 Rb8 Nh4 Rf6 Qa7 Rf7 d8Q+ Kc6 Na6 Kb5 Qf8 Ka4 Nc7+ Qa5 Qb7 Qc5 Qd2 Rf6 Qbg2 Rf7 Bc3 Ka3 Qe8 Bc2 Bb4+ Ka2 Qd1 Ne5 Ba3 Be4 Bb4 Nd3 Ba3 Nd6 Qgd7 N6f5 Bb4 Rb2 Qdg4 Rbe2 Ba3 Rb1 Rc1 f1R Rc3 Rbe1 Rc1 Qb5 Bf8 Qc5 Rd1 Ne7 Rc1 R7f2 Rd1 Nef5 Ra1+ Kb2 Ra7 Kb1 Rb7 Ka1 Qef7 Ka2 Qfe8 Qh1+
1k1n1Q1Q/1n1brNb1/1NBPn3/1Q3rb1/pb5b/q1QbP1PR/6K1/3b4 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 d4 h5 Be3 g4 Bf2 g3 Kd2 gxf2 Nc3 h4 Nb1 h3 g3 Rh7 Nc3 Rh6 Nb1 Rh8 b4 Ke7 Na3 Bf5 Qc1 Nd7 Nf3 Bg7 Bg2 Rh4 Qc2 Rh5 Rag1 Bf8 Bf1 Rh8 Nb1 Be6 Qd1 Ke8 Rg2 Nb8 Ng1 Bc8 Kc1 hxg2 Kd2 Kd7 h4 a5 b6 c5 b5 f5 d5 f3 Ke3 a4 b7 Kc7 h5 f4+ Ke4 c3 h6 c4 h7 c2 Nc3 c1B Nb1 c3 Qd3 c2 Nh3 g1B Qd4 Ra7 Qc4+ Nc6 Qb3 Nd4 Qd3 Ne6 Rh2 Qe7 Nc3 Qa3 Na2 Bg7 Qe3 Ne7 Bg2 f1B Bh1 f2 Kf3 Nc6 Qb3 Rf8 h8Q Ncd8 Kg4 f3 Nb4 Rf6 Nd3 Bg5 Bg2 Bh4 Ndf4 c1B Ng5 Bd2 Kh3 Bb4 Qe3 Rf7 Qd4 Re7 Rh1 Ra5 Qf6 Bd7 d6+ Kb6 Nd5+ Ka7 Rh2 Qe3 Kg4 Qa3 Bh1 Bg2 Rh3 f1B Qc3 B1d4 e3 f2 Qe8 Be4 Qh8 Bc2 Kf3 Bc4 Bg2 f1N Kf2 Bh6 Be4 Bd1 Kg2 Nd2 Bf3 Nf7 Be4 Bdg7 b6+ Ka6 b8Q Nb3 b7 Nbc5 Qbg8 Ka7 Qf8 Nfd8 Nf7 Bd3 Bf3 B6g5 b8Q+ Ka6 Qc7 Ncb7 Nb6 Ka7 Q7c4 Rf5 Bc6 Kb8 Qa6 Bb1 Qb5 Bd3
bn4r1/r1BrR1pn/1Q1b1Q1r/3qN2K/1Pn5/QP2QP2/1rR3r1/4r2k w - - 0 1 legal: proof: g4 h5 d4 hxg4 a3 b5 d5 b4 axb4 c6 Bg5 cxd5 Bc1 d4 e4 e5 Na3 d3 Nb5 f6 Nd4 exd4 e5 f5 Bg2 Qb6 Bd5 Qd8 Be4 fxe4 h4 Ke7 c4 Ke6 h5 Kf5 e6 a5 f3 d5 Kf2 g3+ Kg2 e3 Kh3 Kf4 h6 g2 h7 a4 b3 d2 c5 d3 c6 e2 c7 e1R Rb1 d4 Ra1 a3 Ra2 Ra6 Qe2 Bd6 Rc2 a2 Rc5 a1R Qf2 Nf6 Kh4 Bb7 c8Q Rg8 h8Q Ba8 e7 Nh7 Ba3 d1N Bb2 d2 Rc1 d3 Qe6 Ne3 Kh5 d1R e8Q d2 Rc2 Nc4 Qb6 Kg3 Nh3 g1R Nf4 Rdb1 Ng6 Kg2 Be5 Rb2 Qf6 R1a2 Bh2 Ra7 Ne5 Qd7 Qee6 Qb7 Bg3 Qd5 Rh4 R2a6 Re4 Kh1 Qe8 d1R Qa4 Nd7 Qa3 Rg2 Bf4 Nb8 Bg3 Ng5 Qhh6 Nh7 Qbe3 Rd7 Qb6 Raa7 Qhe3 Rdd2 Bf4 Rg6 Bh2 Qd3 Nf7 Bc7 Bd6 Rdg2 Re7 Qd5+ Ne5 Bd8 Rf7 Be7 Bc7 Bd6 Re7 Rh6+
1r1Q1n2/rbK1QN1Q/4p2q/q3P2n/1nB5/P3nq2/4P1NR/k1rQ2rr w - - 0 1 legal: proof: d4 g5 g4 a5 f4 c5 b4 axb4 a3 cxd4 Be3 Bg7 Bd2 Be5 fxe5 h6 Bf4 Ra4 Ra2 Ra5 Rb2 Ra8 Rb3 Ra7 Rg3 gxf4 g5 Ra4 g6 Ra8 Rg5 hxg5 Kd2 d5 Kd3 Kd7 h4 Ke6 c4 b5 c5 f5 g7 g4 h5 b3 c6 g3 h6 b2 c7 b4 h7 f3 Rh5 b3 Rh4 g2 Qd2 f2 Qg5 f4 Rh3 f3 Qc1 Bb7 c8Q+ Nd7 Q8c3 Ra7 Qc8 Nf6 Nc3 b1Q+ Qc2 b2 Na2 Qa5 Qc3 Qc1 Rh1 b1R Nh3 g1R Q2d2 Nh5 Bg2 f1Q Qc4 f2 Qe1 Rb8 h8Q Qh6 Qeb4 Rc1 Qbc3 Nf8 g8Q+ Kf5 Qc7 e6 Ng5 Kf4 Kd2 d3 Qe7 d4 Bd5 Qh3 Qgh7 f1R Bb3 Qf3 Rh2 Rh1 Nb4 Rfg1 Q7g8 Kf5 Nc2 Kf4 Nf7 Ke4+ Ne3 Qf1 Qgg5 Qf3 Nc4 Kd5 Qd8+ Kc5 Qg7 Kb5 Ba2 Ka4 Qh7 Rb1 Ne3 Rbf1 Nd1 Re1 Kc1 d2+ Kb2 d3 Ne3 Ref1 Bc4 d1N+ Ka2 d2 Ng2 Nf2 Qc1 d1N Qge7 Ne3 Qcd2 Rc1 Qd1+ Nc2 Kb2 Ng4 Ka2 Ne3 Kb2 Qc5 Kc3 Qc7 Q1d2 Nb4+ Kd4 Qa5 Qe1 Qa6 Kc5 Qb5+ Kd6 Qa5 Bb5+ Kb3 Bc4+ Kb2 Qd1 Qb5 Kc7 Ka1 Q8d5 Qa6 Qdd8 Qa5+
2q5/q5nB/Q1p2b2/1rR1P1Rb/P2Kr1np/1b3r2/1k1P1N1Q/qn2R2R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 cxd5 e5 h5 exf4 g4 h6 Bb2 Ra5 Bf6 Ra8 Na3 Bf5 Nc4 Bc8 Ne5 Nd7 Ng6 Nb8 Nh4 gxh4 g5 Qd7 g6 Qd8 Bg5 hxg5 Kf2 Kd7 a4 Kd6 e4 Kc5 g7 f5 d6 b5 d7 f3 Ke3 c6 h6 b3 h7 Kb4 Qb1 g4 Ra2 g3 Kd4 f4 Ra3 g2 Be2 b2 Ra1 Kb3 Rh3 b4 Qc1 b1Q Ra2 Qa1+ Kd3 f2 Rc2 f1R Rf3 Nf6 g8R Bg7 Rh3 f3 Ke3 f2 Qd1 Na6 Nf3 g1Q Kd3 Rb8 Ne1 Ng4 Re8 Rb5 Re5 Bf6 Rh1 Re8 h8Q Nc7 Rg5 Ne6 Rcc5+ Kb2 Bf3 b3 Qe2 Qc7 d8R Ng7 Qh6 Re5 Re8 Be6 Kd4 Qc8 Qd3 Bg8 Bd1 Bf7 Bc2 Bh5 Qh8 Rf5+ Ree5 Rf3 Qd8 Re3 Qb6 Rf3 Qe2 Rf4 Qa6 Rf3 Ng2 Re1 Nf4 f1B+ Qf2 Ree3 Nh3 Be2 Qh2 Bd1 Nf2 Re1 Kc4 Re2 Ref5 Re1 e5 Re2 Rf4 Re1 Rd4 Re4 Bd3 Re2 Nh3 Ka2 Re4 b2 Rd5 Qe3 Nf2 Qa7 Rc5 Bb3+ Kd4 Ka3 Re3 Re1 Bh7 b1N+ Kd3 Kb2 Kd4 Rc1 Re2 Rcc3 Ree1 Rce3 Rhf1 Re2 Rh1 Re4+
1B1r1n1B/Qbpn4/2Bk1rR1/3n1B1P/8/2q1Q1bP/pPK3Nr/3n2nb w - - 0 1 legal: proof: c4 b5 e4 h5 g4 d5 gxh5 e5 a4 bxa4 d4 dxc4 d5 Rh6 Ra3 Rh8 Rd3 f6 Rd4 exd4 e5 f5 Nc3 Ke7 Ne4 fxe4 Qd3 Kf7 Qd1 Ke8 Kd2 Kd7 f3 a5 e6+ Kd6 e7 g5 e8B e3+ Kc2 c3 Beb5 g4 Bd7 e2 Qe1 a3 Qh4 e1N+ Kb1 g3 Bg4 d3 Bd2 g2 Bc1 a4 Qg5 d2 Nh3 g1N Bd3 d1B Bgf5 c2+ Ka1 Ng2 Nf4 Ne7 Bb5 Ng6 Bc6 Bb7 Be3 c1N Kb1 Nce2 Ba7 Nd7 Bb8 Ne3 Ng2 Qf6 f4 Qc3 h3 Rh6 Qg3 Bg7 Qf3 Ngf8 Qe4 Bb3 Qe8 Nd1 Qe3 Be5 Qa7 Nf3 Rg1 Rf6 Qe3 Qa5 Qa7 Nec3+ Kc1 Bc4 Kc2 a2 Qe3 a1R Qa7 a3 Qe3 Ke7 d6+ Kf7 Qa7 a2 Qe3 Bd5 Qa7 Nb6 d7 Ke7 d8B+ Kd6 Nh4 Be6 Rg6 Ng1 Ng2 Nbd7 Qe3 Bd5 Qa7 Re6 Bf6 Qc5 Bh8 Rf6 Bd3 Bf3 f5 Bg3 Bde4 Qe3 Bd3 Nd5 Be4 Re6 f6 Qd4 f7 Rf6 Bf5 Qe5 Ne1 Bh1 Ng2 Rc1+ Kd2 Rc4 Kd3 Rd4+ Kc2 Rd2+ Kc1 Qe1 Ne3 Re2 Bc2 Rh2 Ng2 Nh7 f8Q+ Ne7 Qh6 Ke6 Qhe3+ Kd6 Bf5 Nd5 Kc2 Nhf8 Qa4 Bf2 Ba7 Rd8 Bb8 Bg3 Qaa7 Qc3+
2b5/1q1rPbB1/p1knQQQ1/Pr3q2/K1N1P3/1p3B2/b4b2/n2RrQ1q w - - 0 1 legal: proof: b4 c5 g4 cxb4 a4 g5 f4 d5 c4 e5 fxe5 dxc4 Nc3 Ke7 Ra3 Ke8 Nd5 h6 Nf4 gxf4 g5 h5 Rg3 Nd7 Rg2 Nb8 Rg4 hxg4 e4 Kd7 d4 b5 Kd2 f5 Kc2 b3+ Kc3 b4+ Kb2 c3+ Kb1 b2 Kc2 b1B+ Kb3 a6 h4 f3 a5 g3 d5 f4 g6 f2 d6 g2 h5 f3 h6 c2 h7 Kc6 e6 Qd7 g7 Nf6 g8Q Qb7 d7 Ra7 d8Q Bc5 e7 Ba2+ Ka4 b3 Ba3 c1R Rh2 Ne8 Q1d2 Re1 Qd1 Nd6 Bd3 f1Q Rh1 f2 Nf3 g1Q Qg6 Rf8 h8Q Rf5 Qe6 Bb6 Qhf8 Rb5 Qff6 Qh3 Bc4 f1B Bb2 Qf5 Nd2 Bf2 Be2 Qg2 Bg4 Bc4 Qdg8 Bd5 Rf1 Qh1 Bf3 Bc4 Qgg6 Bd5 Qeg8 Bf7 Bc3 Kc5 Bb2 Nc6 Nc4 Nb4 Qe2 Nc2 Rg1 Kc6 Qf1 Be8 Qge6 Na1 Qh8 Qa8 Bg7 Bf7 Qh4 Rc7 Qhf6 Qb7 Qh3 Re3 Rd1 Re1 Qf1 Rd7
1b1Q1R1Q/1q1RBq2/3R1qpq/8/1kPN2qp/n2nK1rP/2RP4/1q2n2r w - - 0 1 illegal: No possible last move
2Q3b1/4np1b/3Q4/p2r1bN1/bnb1NR1r/QPP1bB2/b4PKQ/k3n3 w - - 0 1 legal: proof: g4 b5 d4 e5 a4 exd4 h4 bxa4 g5 c5 g6 Qb6 Bh6 gxh6 Ra3 h5 g7 Qg6 Rc3 c4 Rd3 Qg5 hxg5 cxd3 g6 h4 e4 Ke7 e5 Ke6 c3 Kd5 e6 Kc4 e7 h5 e8Q d5 Qd8 a5 Ne2 a3 Ng3 a2 Qd2 Kb3 Qe7 a1N Ne4 Ka2 Qa7 h3 Bg2 h4 O-O h2+ Kh1 Nc6 Rg1 Nc2 Ng3 Nge7 g8Q Bf5 g7 Rd8 Rd1 N6b4 Qe2 d2 Qh5 d3 Qe2 d4 Bd5+ Ka1 Re1 d1B Nh5 d2 Qe5 d3 Kg2 h1B+ Kg1 h3 Qc5 h2+ Kf1 Bhe4 Nf4 h1B Ba8 Be2+ Kg1 d1B Ne6 d2 Qh7 Rd5 g8Q Bh6 Qed6 Bc4 Qgc8 Be3 Qhh2 Rh4 Ng5 Bdf3 Bb7 d1B Nd2 Bfg2 Re2 Ne1 Ba8 Bb1 Nde4 Ba4 b3 Ba2 Rd2 Bh7 Rd4 Bh3 Bc6 Bg8 Bb7 Nbc2 Qa3 Bf5 Bc6 Bf3 Ba8 Bd1 Kh1 Nb4 Kg1 Nf3+ Kg2 Bc2 Nc5 Bfh7 Re4 Rd2 Rf4 Bcf5 Bb7 Ne5 Bd5 Ned3 Bf3 Rd1 Nce4 Ne1+ Kg1 Rd5 Kh1 Nec2 Kg2 Ne1+
KB1k4/1B2r3/2q2b2/nRP2pnQ/3PqpN1/1b4n1/1r1P2Bp/1B3Qqr w - - 0 1 illegal: No proof kernel
2QNQKB1/rnnq1r2/2B1p3/p6k/PR1b1q2/1pP5/P2Qb3/nQ1b1r2 w - - 0 1 illegal: No possible last move, all moves rejected
N2qn1b1/5r1k/2P2p1r/BB1p1q2/BnP3K1/P1bB4/rb1p1R1Q/1n3Q2 w - - 0 1 legal: proof: d4 c5 dxc5 g5 f4 a5 b4 axb4 g4 e6 a3 e5 Nd2 h6 Ndf3 gxf4 g5 h5 Nd4 exd4 Rb1 Rh7 Rb3 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 d5 h4 b5 c4 g3+ Kf3 b3 e4 b4 g6 b2 e5 b1Q h5 g2 h6 b3 g7 d3 c6 d2 e6 b2 e7 Qf5 h7 b1N Qe1 Ra7 Rh2 Be6 Ne2 g1B Bb2 Na6 Nc3 Nf6 g8B Bg7 Nb5 Nb4 Rf2 Qe5 Bd3 Rd7 Qf1 Rc7 Rh2 Bd4 Rf2 Bc3 Bc2 Ne4 Ba4 Nd6 Na7 Bf6 Nc8 Ra7 Nb6 Rd7 Bb5 Rb7 Kg2 f3+ Kh1 Bg7 Na8 Rb6 Re2 f2 Kg2 Bf6 Kf3 Rb8 Qh3 f1R+ Rf2 Rb7 Qg2 Rc1 Qf1 Rc2 Ba1 Ra2 Bb2 Bh4 Ba1 f6 Bb2 Bf7 Kg4 Bg5 Ba1 Be3 Bb2 Bed4 Ba1 Bg6 Be6 Be4 Bf5 Kf7 e8B+ Kg7 Beg6 Rf7 Bb2 Bc2 Bd3 Ne8 Ba1 Bb2 Bge4 Kh6 Bf3 Bdc3 Bd1 Rhf8 h8Q+ Rh7 Bf5 Rf7 Be4 Bd3 Bda4 Bc2 Bf3 Kg6 Be2 Rh1 Qh2 Kg7 Qhg1 Rh6 Qh2 Bh7 Bd3 Bg8 Rf3 Bc1 Rf5 Kh7 Bb2 Bd4 Bc3 Bb2 Ba6 Nc2 Ba5 Nb4 B6b5 Bdc3 Rf2+ Qf5+
3b2Q1/1B2PNq1/R1r2bB1/pB1pB1q1/p2n4/1qP1k1r1/PbQn4/n6K w - - 0 1 illegal: No proof kernel
1b1Q4/1r1p1b1k/Q2N3b/P2q1r1b/2ppB1P1/4QQP1/NK6/1Rn1r1nb w - - 0 1 legal: proof: d4 a5 e4 f5 c4 fxe4 b4 g5 a4 g4 c5 b6 Ba3 c6 b5 g3 Bb4 axb4 hxg3 Nh6 g4 Ng8 d5 cxd5 c6 d4 Ra3 Ba6 Rc3 Bc8 Rc5 bxc5 Kd2 Kf7 Kc1 Kg6 f4 h5 f5+ Kh7 f6 e5 c7 h4 b6 e3 b7 h3 a5 b3 f7 h2 Bb5 e2 Qf1 e1B Qf4 e4 Qf2 e3 Qg3 b2+ Kc2 e2 Bc6 c4 Qf4 Nh6 Qf6 Ra7 Qd6 Bg3 Nh3 e1R Qf4 Qg5 Ng1 Na6 b8Q Bb7 c8Q Nf5 Qcc7 Nh4 Na3 b1B+ Kb2 Nb4 Qcd6 Bh6 f8Q Na2 Ne2 Qd5 Qfe5 Nc1 Qf3 Rf8 Nc3 Bg6 Qee3 Bh5 Na2 Rf5 Nb5 Ba8 Qc8 Rb7 Qd8 Be5 Rg1 h1B g3 Bef4 Q6f6 Bb8 Qd6 Ng6 Qde6 Nf4 Qef6 Nfe2 Qd6 Qf7 Be4 Qg8 Qa6 Qd5 Rg2 Ng1 Rd2 Rc7 Rd1 Bc6 Nd6 Rb7+ Qb5 Qc5 Qbb6 Bd5 Qb5 Bdf7 Qbb6 Nb3 Rb1 Qd5 Qa6 Nc1+
1rr4B/1n2k3/2Q2p1Q/6Pb/2q1bR1b/R1pnPPNn/p2b2Q1/1KQ3r1 w - - 0 1 legal: proof: d4 a5 c4 g5 b4 axb4 h4 d5 hxg5 dxc4 Nc3 e6 d5 e5 Nb5 Nh6 Nd4 exd4 Rh3 Ng8 Rh5 Nc6 Rh1 Nb8 Kd2 h5 Kc2 b5 a4 c5 g4 b3+ Kb1 h4 f3 c3 e3 d3 d6 h3 g6 b2 a5 d2 a6 b4 g7 c2+ Ka2 b1B+ Kb2 c4 a7 c3+ Kb3 h2 d7+ Ke7 Qe1 d1N Bb2 c1B Ra2 Bd2 Bc4 Qc7 Ra5 Nc6 Ne2 Nd8 Ba3 Nb7 Ng3 Nf2 Qc1 Rb8 a8Q Nh6 g8Q Be4 Ka2 Nd3 Kb1 f6 g5 Ng4 Qg6 Ngf2 Qh6 Nh3 Ba2 Qc4 Qa6 Rg8 Qc6 Rh8 Rd1 h1R Ra7 Rg1 d8Q+ Kf7 Ra4 b3 Bc5 Be7 Ra3 Bg4 Qdc8 Bh5 Qg4 Bd8 Bf8 Bc7 Bg7 Rhc8 Bh8 Bd6 Ne2 Ke7 Qg2 Be1 Rd2 Bdg3 Rd1 Bh4 Rd2 Ne5+ Rd3 Bd2 Ng3 Bd5 Rd4 Nd3 Rg4 Be4 Rf4 bxa2+
q4N2/rp6/2q1b1nN/p3P1P1/PbQnKn2/1r1Qnp1R/kN5N/n6B w - - 0 1 legal: proof: c4 c5 b4 g5 f4 e5 a3 exf4 bxc5 d5 Ra2 dxc4 Ra1 g4 a4 h6 Ra3 h5 Rf3 Nh6 Bb2 Ng8 Bf6 gxf3 g4 h4 Bd4 Ke7 Bf2 Ke8 Bg3 hxg3 d4 Kd7 Kd2 Ke6 h4 Kd5 c6 f5 e3 a5 h5 c3+ Kd3 g2 h6 f2 h7 c2 c7 c1N+ Kd2 f3 g5 f4 Rh5 Ra7 Rh3 Nb3+ Kd3 Nc6 Na3 Be6 c8Q Na1 Nc4 Bb4 Nb2 Nge7 Qc7 Re8 h8N Ng6 Nf7 Qa8 Nh6 Rf8 Be2 f1N Qc2 f2 Nf3 g1N Nh2 Rf5 Qb1 Re5 Bf3+ Re4 Qf7 Ne2 Bh1 f3 Qc2 Nfg3 Qg8 f1Q Qh7 Qc1 Qc4+ Kd6 d5 Nf5 Qd7+ Ke5 d6 Ncd4 Qh7 Rh4 e4 Ne3 d7 Kd6 Qb5 Qc6 d8N Rf4 Qa6 Kc5 e5 Rg4 Qd7 Rg1 Qf7 Rb1 Qc7 Bc3 Qh7 Kb4 Qc4+ Ka3 Qd7 Be1 Qdd5 Nef4+ Ke4 Bb4 Qd3+ Qc3 Qc5 Ka2 Qc7 Bf7 Ne6 Qc1 Nf8 Be6 Nd1 Qc3 Qcc4+ Rb3 Nb2 Qc2 Qd5 Qc7 Q5c4 Qc6+
4rn2/1nN1N2b/1PPb4/1rqr1Q2/4NRpQ/P4r2/p1pB2k1/2bNK1b1 w - - 0 1 illegal: No proof kernel
2RRqQ1q/N2r2p1/Rp1B1n1r/4q3/1RP5/K1Pq4/1p1r2P1/Q1b1k1rn w - - 0 1 illegal: No proof kernel
7B/1nQp1r2/3nn1R1/bR1P4/1rpn1p2/4PrR1/2PQ1Rpq/1K3Nkq w - - 1 2 legal: proof: b4 b5 f4 e5 a4 exf4 Kf2 a5 Ke1 Ba6 Ba3 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 axb5 Bd6 Ra6 Be7 Ra1 Bf8 g4 g5 Bh3 f3 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Qf6 Bf5 Qd8 Bg4 hxg4 h4 Ke7 d4 Kd6 Kd2 Kd5 h5 Ke4 b6 f5 d5 c5 g6 b2 h6 b1R e3 b3 h7 c4 g7 f2 b7 f1N+ Kc3 b2 Ra5 g3 Ra2 f3 Qe1 f2 Qe2 g2 Rh2 f4 Qd2 Nf6 g8R Nh5 Ra4 Nfg3 Qe1 f1N Rg4 Nd2 Rg6 Qh4 Rg4 Nc6 b8R Nf3 Rb3 Nf5 Rbb4 Nd6 Qd2 Na5 Rh3 Nab7 Rg6 Ng7 Rhg3 Nd4 Rb5 Qh2 Ne2 Nge6 Ra1 Rg8 h8Q Rb8 Qe1 Rg7 Qd2 Rf7 Qg8 Be7 Qc8 Bd8 Qc5 Bb6 Qc7 Rh8 R3g4 Kf3 Ng3 Rh3 Nf1 Ke4 R4g5 Rf3 Rg3 Qh8 Kb4 Ba5+ Ka3 Qh2 Ka2 Rf2 R3g5 Kf3 Rg4 Re2 Rg3+ Kf2 Qe1+ Kg1 Bd2 Rf8 Bc3 Rf2 Qd1 Rf3 Qd2 Nb3 Bh8 Nbd4 Rg7 Rf7 R7g6 Rd1 Rc1 Re1 Kb1 Rd1 Qb4 Rd3 Qd2 Rb3 Re1 Rb4 Re2 Qh6 Rf2 Qh1 Ka2 b1Q+ Ka3 Qd1 Ka2 Qe2 Ka1 Qd3 Ka2 Qf5 Ka1 Qfh5 Ka2 Q5h2 Ka1 Ra4+ Kb1 Rb4+
BbNN1Q2/4ppNK/r2Pn3/3PN1pp/r2Q2n1/P3b2b/p3k3/n1R2q2 w - - 0 1 illegal: No proof kernel
k2B4/2p1N2p/1B1PRnB1/1p1bb3/1b1pnn1Q/P1brp2K/1Q1P4/Bq6 w - - 0 1 legal: proof: e4 d5 b4 f5 h4 fxe4 c4 g5 b5 gxh4 b6 d4 Na3 a6 Nb5 axb5 Rb1 Ra3 Rb2 Rf3 Rc2 Rf5 Rc3 Rd5 cxd5 Bh3 Rc4 Bc8 Rc6 bxc6 f4 Kd7 Kf2 e5 g4 c5 Kg2 c4 f5 c3 g5 e3 b7 e2 f6 e1B f7 h3+ Kh2 c2 a3 e4 g6 Bb4 f8B Qf6 d6 Kc6 g7 Nd7 b8B Kb7 Qf3 Ka8 Bg2 Bb7 Bb2 c1B Be7 Bd5 Qh5 Nc5 Nf3 Nd3 Nh4 Qf1 Ng6 Nf6 g8Q Nf4 Ba1 Bb2 Bd8 B2c3 Qh4 Bf2 Ne7 Qb1 Qg6 Rf8 Re1 Rf7 Ba7 Bg3+ Kg1 Rf8 Bb6 h2+ Kf1 h1N Qg8 Bb7 Qa2 Nf2 Qb2 Bd5 Bf3 Bh2 Bh5 Rg8 Bf7 Rg3 Be8 Rd3 Bg6 N4h3 Kg2 Be5 Re3 Nf4+ Kg3 Nh1+ Kh2 Ng3 Re1 Nfe2 Kh3 e3 Rf1 Nge4 Rf5 Bf4 Re5 Bg3 Re6 Be5 Kg2 Nf4+ Kh2 Ng2+ Kh3 Nf4+
8/Q3B1P1/q2Qnqrp/1Q1rq3/1n1q1N1R/np1rbQNP/bP5k/2K2b2 w - - 0 1 illegal: No proof kernel
r1n1N1n1/r5nN/3N1qqp/N2pQ1b1/RKb1p2k/nP2P3/4Bn1P/6Qr w - - 0 1 legal: proof: d4 f5 a4 b5 d5 bxa4 d6 f4 e3 f3 Ra2 cxd6 Ra1 d5 Ra3 d4 Bd2 g5 Rd3 Qa5 Bb4 Na6 Rd2 Qc5 Re2 fxe2 f4 Qa5 f5 Qc7 Bd6 Qd8 Kd2 Nb8 Bf4 gxf4 g4 Kf7 c4 Kf6 c5 Kg5 b3 e1Q+ Kd3 a5 Kc4 e5 c6 d5+ Kb5 e4 f6 a3 f7 h6 c7 f3 Qd3 a4 Nd2 f2 Qb1 d3 Qd1 a2 Qa1 a3 Qb1 a1N Bh3 f1N Qa2 Nc6 Ne2 Kh4 g5 Qf6 g6 Nce7 g7 Ba6+ Kb4 Qg3 c8N Ra7 Qb2 a2 Qe5 Qgg6 Ng3 Bc4 Nd6 Nc8 Nh5 Be7 f8N Ng3 Bg4 Nf5 Be2 Bd8 Nh7 Nc2+ Kc3 Na3 Kb4 a1R Rf1 Nge7 g8Q Ng7 Rf2 Rh1 Rf1 Ba6 N2c4 d2 Ra1 d1N Na5 Nf2 Ra2 Bc4 Ra1 Qff7 N5f6 Qe6 Nfe8 Qef6 Qf7 Ng8 Qb7 Nb1 Ra4 Na3 Qb6 Qf4 Qbd4 Bg5 Qa1 Qff6 Qg1 Nge7 Nc7 Rd8 Nce8 Ng8 Ndb7 Nce7 Nbd6 Rda8 Bd3 Nc8 Bf1 Nce7 Be2 Nc8
1q2R2Q/p1pbqkn1/PrP1n2P/1N4B1/2qQb3/Q3b1K1/n2r1q1p/1Q2N3 w - - 0 1 illegal: No proof kernel
1r2Rb2/1q3n1k/QrbPpqNp/1n2N1b1/1N2pN2/K3P1n1/3p2rP/1Q3B2 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 Bf4 d6 Be5 dxe5 d5 c5 Ra3 Qc7 Rd3 Qd8 Rd4 cxd4 Kd2 Kf7 Kc1 Kg6 Kb2 b5 f4 d3 c4 g3 c5 d2 c6 g2 a5 e4 a6 b3 d6 e6 c7 b4 a7 Bb7 c8N Qf6+ Nc3 Nc6 Nf3 g1N Qc1 Nd4 Na4 Rb8 a8N Nb5+ Nd4 Nh6 Nc7 Bc6 Qb1 Rg8 Na6 Nf7 Nc3 h6 f5+ Kh7 Nd5 g5 Nf4 g4 Ne7 g3 Neg6 g2 e3 Ne2 Rg1 Ng3 Nd3 Rb6 Nde5 Rb8 Ne2 Rg7 Rh1 g1B Nef4 Bf2 Rg1 Rg8 Ka1 b2+ Ka2 Be1 Kb3 Rg7 Ka4 b3 Nb4 Nh1 Rg5 Bh4 Rg2 Ng3 Rg1 Qe7 f6 Bg5 Rg2 Nh8 f7 Qf6 Qd3 b1Q Rf2 Be7 f8Q b2 Qc8 Nf7 Qa6 Bf8 Rg2 Qc1 Rg1 b1R Qc2 Rb2 Qb1 Qc5 Rg2 Qa7 Rf2 Qb7 Rf3 Nc3+ Ka3 Rg8 Nc2 Rb5 Nb4 Rb6 Bb5 Nh8 Rf1 Nh5 Rc1 Be8 Nc2 Bh4 Nb4 Nf7 Ne7 Rg2 N7g6 Ng3 Bf1 Bg5 Rc2 Nd5 Rc4 Nc3 Rc8 Bc6 Re8 Nb5+
3B3N/2Kn1Pqr/2r5/5bP1/2B2PB1/b1q3p1/BBNrR2n/1r3k1q w - - 0 1 legal: proof: g4 h5 a4 b5 axb5 c5 d4 cxd4 e4 f5 exf5 g5 h4 a5 hxg5 a4 g6 a3 g5 Ra5 Qg4 hxg4 b4 Rxb5 Ra2 Ra5 b5 Ra4 Rb2 Ra6 Rb3 Ra8 Rc3 Ba6 Rc8 Bxc8 Kd2 d5 Kd3 Kd7 f4 Kd6 c4 Kc5 g7 e5 b6 g3 f6 a2 b7 a1Q f7 e4+ Kd2 d3 Ke3 d2 Bd3 d1R Nf3 Bf5 Rh2 Qc8 Nh4 Nd7 b8B Ngf6 g8B Rh7 Ng6 Rd2 Re2 Ra6 Bc7 Rc6 Bd8 Kb4 Na3 Kc3 Nc2 Ba3 c5 Qb2 Be7 Qf8 Nh8 Qg7 Bd8 Qb3 Na1 Qd1 Bc4 Qh1 Nb3 Kc2 Na1+ Kd1 Bb2 Qh4 Rh2 Ke1 Re2+ Kf1 Nc2 Qh1 Ba2 Rd1 Bc4 Rb1 Kd4 e3 Ba2 Rd6 c6 Ng4+ Bf6 Re6 c7 Nh2 c8B Rc6 Ba6 Rh5 B6c4 Rh7 Kc3 d4+ Kb3 d3 Ka4 d2 Ka5 d1R Bd8 Rh5 Bh7 Rd2 Bg6 Rh7 Bh5 Rbd1 Bg4 Rb1 Rg2+ e2 Kb5 Nb6 Ka6 Nd7+ Kb7 Rch6 Kc7 Rf6 Be6 e1Q Re2 Qc1 Bec4 Rfh6 Ne1 Qcc3 Nc2 Rc6+
3n2N1/1qR1N1Bn/1rn2nB1/2k2b2/P1q4K/bq3pr1/2PP1b1B/B6B w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 c5 a4 e5 e3 exf4 Bb5 h5 gxh5 Ke7 Ra3 d6 Qe2 d5 Qd3 d4 Qxd4 bxa3 Qb4 cxb4 Bc6 Ra5 Bd7 Ra8 Kf2 Kd6 h4 f5 h6 b5 h5 g5 e4 g4 e5+ Kc5 e6 a2 e7 a1N e8B b3 h7 b2 h6 g3+ Kg2 f3+ Kh3 g2 Nc3 b1N Na2 f2 Bf7 f1Q Bfe6 b4 Rh2 b3 Be8 b2 Nf3 g1B+ Kg3 f4+ Kg4 Qc7 Bf5 Qc4 Ng5 Nc3 Bg6 b1Q Bb2 Qb7 Nb4 Nd5 Bg7 Ndf6+ Kh4 Ra6 Be4 Bf5 Nf7 Rb6 Nd5 Nc6 Bh1 Nd8 Ne7 Nb3 Rh3 Nd4 Rc3 Nd7 Be5 f3 Bg3 Ngf6 Bh2 Rg8 h8B Qb2 h7 Qb3 Nh6 Be3 Bg7 Bf2+ Kg5 N4c6 h8B Bd4 Kh4 Nh7 Nc8 Bd6 Ne7 Ndf6 Nc8 Re8 Ng8 Re2 Nce7 Rg2 Nc8 Rg3 Nce7 Bf4 Rd3 Bb2 Rd7 Ba3 Rc7 Bc8 Bd3 Be3+ Be4 Bg4 Bf5 Bf2 Bg6 Ne4 Ba1 Nef6 Bg7 Bf5+
2N2nq1/3N3k/2r2p2/P1bP2q1/6Bb/qNRp3K/1bN1N1Pn/r2r1B2 w - - 0 1 legal: proof: d4 a5 c4 e5 b4 axb4 h3 d6 d5 Bg4 hxg4 Nh6 c5 Ng8 Qd4 exd4 cxd6 Qe7 Na3 Qf6 Nb1 Qd8 e4 f5 a4 Kd7 e5 Ra5 Ra3 Ra6 Re3 Ke8 Re4 Ra8 f4 fxe4 f5 Ra7 f6 Ra5 f7+ Kd7 Bg5 Ra8 Bf6 gxf6 Kf2 h5 Kg3 c5 g5 b5 g6 c4 g7 b3 Be2 h4+ Kg4 e3 Nf3 c3 Rh3 c2 Nbd2 c1B Bf1 d3 Nc4 b2 Ng5 b1R Ne4 b4 Rh1 e2 Na3 e1B Ng5 h3 Nh7 h2 Nc2 b3 Kh3 b2 Rg1 Nh6 g8N Bh4 Ng5 Ng4 Ne6 Ra1 a5 b1Q Ned4 Qb2 Ne2 Ra6 Rh1 Qa3 Ne7 Rc6 Nc8 Bb2 Rg1 Be7 f8N+ Ke8 d7+ Kf7 e6+ Kg7 Rh1 Bb4 e7 Bc5 e8B Kh6 Bf7 Qe8 d8N Nd7 Rg1 Qe5 Nb7 Qg5 Bh5 Kg7 Ng6 Kh7 Ne5 Re8 Rh1 Nf8 Nd7 Re4 Ng1 Ree1 Ne2 Red1 Rg1 Bcd4 Nbc5 Qg8 Nb3 Bc5 Ne3 Bg5 Nc2 h1Q+ Kg3 Nh2 Kh3 Bh4 Bg4 Qg5 Nc3 Kg8 Ncd4 Bf2 Bfe2 Rd2 Rc1 Rd1 Bf1 Kh8 Rc2 Qg8 Rc1 Re1 Nce2 Bh4 Rc3 Kh7 Nc2 Reb1 Ng3 Qg1 Ne2 Qe3+ Ng3 Qeg5 Ne2 Rd1
K1n2rr1/1Pb2kn1/2rbb3/n5b1/1N2b3/1N1bR3/2rPNPq1/1R1NQN2 w - - 0 1 legal: proof: h4 c5 c4 d5 a4 f5 e4 fxe4 b4 g5 a5 gxh4 b5 b6 Ba3 Bg4 Bb4 Bc8 axb6 cxb4 c5 Nd7 Bd3 Nb8 Bc4 dxc4 Ke2 e5 Ke3 h5 g4 a5 b7 c3 g5 b3 g6 b2 b6 h3 g7 h4 c6 a4 c7 a3 Nf3 a2 Nh2 c2 Qf1 c1B Qg2 Qg5+ Ke2 e3 Kd3 e4+ Kd4 e2 Qf1 e1R Qe2 e3 Qg4 e2 Qg3 Ne7 g8N Be6 c8N Bh6 Qg1 Kf7 Qg2 Nbc6+ Ke4 Na5 Na7 Nc8 Nf6 Rf8 Nf3 h2 b8N h3 Qg1 Qg2 Na6 Bg5 Nc3 b1B+ Kd4 Bg6 Kc5 Bd3 b7 Ba3+ Nb4 Rc1 Nh5 e1R Rb1 a1B Nf4 Rc2 Nc6 Rec1 Qe1 Rb8 Rg1 h1N Ne2 h2 Ncd4 Ng3 Nb3 h1B Nh2 Nf5 Nf1 B1b2 Nh2 Ng7 Nf1 Bdc4 Nd1 Be5 Neg3 Bc7 Ne2 Qh2 Rg3 Be4 Re3 Qg2 Rf3+ B6f5 Re3 Bce6+ Kb5 Bh7 Ka6 Bhg6 Nd5 Bad6 Nb4 Rc5 Nec3 Rc2 Ne2 Rc6+ Kb5 Nb6 Ka6 Rg8 Ka7 Rbf8 Nec3 Nc8+ Ka8 Bd3 Ne2 Bge4
4R2r/N3qn2/n2B1Kn1/N1q2PPk/1n1N1q2/1bq2q2/NPR1N3/b4qr1 w - - 0 1 illegal: No proof kernel
4b2q/1bq1qr1R/5P2/B3r1Bb/n1PPNqB1/2N5/pBk1q1n1/2b2B1K w - - 0 1 legal: proof: h4 c5 c4 d5 a4 f5 e4 fxe4 h5 d4 a5 g6 Qc2 gxh5 b4 h4 Qc3 dxc3 Ra4 b6 axb6 Kd7 b5 Ke8 Rb4 cxb4 f4 Kd7 Kf2 Ke6 g4 h5 Kg2 a5 d4 a4 b7 c2 g5 Kf5 g6 e5 b6 h3+ Kh2 a3 g7 b3 Nd2 h4 Ndf3 a2 Bd2 c1Q Bc3 e3 Ba1 Ke4 f5 b2 f6 b1B Bb2 e2 Ba3 Kd3 Bb2 e4 Bc3 e3 Nd2 Nh6 g8B Ra7 Ba1 Bg4 Ngf3 Nf5 Ng1 Na6 b8B Bh6 b7 Nc5 Ngf3 Na4 Bh7 Re8 Kg1 h2+ Kg2 Qa5 Rg1 h1B+ Kh2 h3 Bg8 Nh4 Bg2 e1Q Rf1 e2 Kg1 Qf2+ Kh2 e1Q Be6 Qe4 Bf4 Qfe2 Ng5 Qc5 Kg3 h2 b8B Q1a3 Bc8 Re5 Bb2 Rd7 Bd6 Qc7 Bb4 Rh7 Ba5 Qae7 Rc1 Bd7 Be3 Be8 Bg4 Rf7 Rg1 Qf5 Bf1 Bb7 Rh1 Ng2 Bf4 Kc2 Be3 Kd1 Bf4 Bd3 Nb1 Kc2 Nc3 Qfe4 Be3 Qf5 Bd2 Qff2+ Kh3 Bg6 Nge4 Qf5 Bg5 Qff2 Bh4 Bc1 Bg5 Qf5 Rg1 h1Q+ Kg3 Qh6 Rh1 Qg7 Rh7 Bh5 Kh2 Qf4+ Kh1 Qh8
1nKb1bB1/5pR1/1q6/rb1qnB1k/q1b1B1N1/2BP1n2/P1r2P2/2B2R1n w - - 0 1 legal: proof: c4 b5 h4 g5 b3 gxh4 cxb5 a5 b4 axb4 d3 d5 Kd2 e5 Na3 e4 Nc4 dxc4 Kc2 e3 Qd2 exd2 e4 d1B+ Kb2 c5 g4 h5 e5 Rh6 e6 b3 Kc3 b2 e7 b1N+ Kb2 h3 g5 h4 g6 h2 g7 h3 Bg5 c3+ Kc1 c4 Nf3 c2 Kb2 c3+ Kb3 c1B+ Kc4 c2 Kc5 Ba6 Ng1 Rc6+ Kb4 Nd2 Be3 Nf6 g8B Qb6 Nf3 Ng4 Bg2 Ne5 Rg1 h1Q Nh2 Bg4 Bf3 Be6 Rg7 Bb3 Bg4 Qd5 Bf5 Ndf3 Ng4 h2 Rb1 h1N Bf4 Be3 Rf1 c1Q Be4 Qb7 Ka5 Qcc4 Bh6 Kd7 e8B+ Ke7 Bd7 Bg5 Bdf5 Bf6 Bc1 Qcd4 Rg1 Rc2 Re1 Qbd7 Rf1 Qb4+ Kb6 Bc4 Nh6 Q7e6+ Kc7 Qa4 Ng4 Bh4 Nh2 Kf6 b6 Nbd7 b7 Nb8 Be3 Qed6+ Kc8 Bab5 Bd2 Ra5 Bc3 Ke7 Ng4 Qg6 Nh6 Kf6 Ng4+ Kg5 Bb4 Kh5 Be1 Bd8 Bc3 Nbc6 b8B Nd7 Bh2 Nce5 Bf4 Qb6 Bc1 Nb8
Kr1b2N1/6rk/N1p5/b1PR4/N1rNnB2/1br3bP/2qbN1Pb/3n3R w - - 0 1 legal: proof: e4 d5 a4 dxe4 f3 b5 f4 bxa4 Nc3 h5 Nb1 g6 Qg4 g5 fxg5 hxg4 Be2 Rh4 Bd1 Rh8 Bf3 gxf3 Kf2 a5 Ke3 e5 d4 f5 c4 Kf7 b4 Kg6 c5 f2 h3 f1R d5 c6 b5 f4+ Kd2 f3 Ke3 f2 b6 a3 d6 a2 b7 a4 d7 a3 Bb2 Ra7 Bd4 Kh7 Bc3 Rc1 Nd2 f1R Rb1 a1B Rb3 a2 Bb2 Na6 b8N Be7 Rb7 Rf4 Nf1 Nf6 Ne2 Rc3+ Kd2 e3+ Kd1 e4 Ng1 e2+ Kd2 Nc7 Rb3 Ncd5 Bc1 Ne3 Ng3 Nd1 Na6 Qc7 d8N Be6 Rb1 Bb3 Ne6 Rb8 Nd4 Bd8 Rb2 Qa5 Rb1 Qa4 g6+ Kh6 g7 Kh7 g8N e1B+ Ke2 e3 Ne4 Rg4 Kf3 Rag7 Nge2 Bg3 Rb2 Qc4 Rd2 Bb2 Rd3 a1B Rd2 Ba3 Rd3 Bb4 Rd2 Rc2 N4c3 Bba5 Na4 Ne4 Rd3 Bh2 Bd2 Rg3+ Kf4 B1c3 Bc1 Be1 Ke5 Qc3 Bd2 Qb2 Bc1 Rc4 Rd2 Qc2 Ke6 Be7 Kd7 Rf3 Rd3 Beg3 Bd2 Rbb4 Kc8 Bed8 Nec3 e2 Bf4 e1B Nce2 Re3 Rd2 Rec3 Rd3 Bdb6 Kb8 Bd8+ Ka8 Rb6 Nf5 Rbb7 Rd5 Bd2 Nfd4 Rb8+
3k4/B3nrnR/1P2BqBB/rbPp2br/1qPq1p2/1N3N2/5K2/2b1B1n1 w - - 0 1 legal: proof: f4 b5 b4 e5 a4 bxa4 e4 c5 g4 h5 d4 hxg4 dxc5 f6 Qf3 Rh7 f5 Rh6 Qf4 Rh8 Ra3 exf4 e5 Kf7 e6+ Ke7 Re3 Ke8 Re5 fxe5 c4 d5 h4 g5 b5 a5 e7 a3 h5 e4 b6 a2 f6 a1R h6 g3 h7 g2 Bd2 g4 Be2 a4 Bd3 a3 Kf2 e3+ Ke2 g3 Rh5 a2 Bc3 Nd7 Na3 Ra7 Bb2 Ba6 Bf5 Bb5 Bd3 Bh6 Rh1 Nf8 Bf5 Ne6 Be5 Ng7 Be6 Bg5 Nf3 g1B Nc2 g2 Ncd4 Bf2 Bb8 g1N+ Kd3 e2 Nb3 Rb7 Ba7 e1Q Rh3 Qb4 Rh4 Nh3 Ke2 Be3 Rh5 Bd2 Rh6 Ng1+ Kf2 Bc1 Rh3 Nh6 Rh1 Nhf5 Rh4 Rf8 h8B Rf7 Rh5 Nd4 Rh7 Nc6 Bf5 Qd6 Bg6 Kd7 e8B+ Kd8 Bd7 Ne7 Bh3 Rb8 Be6 Ra8 Bb8 Ra5 Ba7 Rf8 f7 Rb1 Bd7 a1Q Bc8 Qdf6 Be6 Rg8 f8B Qad4+ Kg2 Rb2+ Kf1 Rd2 Ke1 Rh2+ Kf1 Ne8 Bh6 Rh5 B8g7 Rf8 Kg2 Qa1 Kf2 Rf7 Bh8 Qfc3 Be5 Ng7 Bf6 Qd3 Bc3 Qb2+ Bd2 Qf6 Be1 Qdd4+
3N2n1/1P2NRK1/pk1p1q2/1N1b3R/P2b2r1/1rN2n1n/nn2QrP1/3Nb3 w - - 0 1 illegal: No possible last move
k3B3/P1R3R1/b3b2B/P2n3N/n1rbq1R1/4qR1r/2PR1pqp/1b2bK2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 c5 bxa5 e5 d4 cxd4 h5 exf4 g4 h6 Nd2 Ke7 Ndf3 Ke8 Nh4 Bd6 Qd3 Bc5 Qg3 gxh4 g5 Ba3 g6 Bf8 Qg5 hxg5 e4 d5 a4 Kd7 e5 Kc7 h6 b5 g7 Kb7 h7 f5 e6 h3 e7 d3 e8R d2+ Kf2 d1Q Ra3 g4 Rg3 h2 Be2 b4 Re7+ Qc7 Bb2 f3 Bc3 d4 Re3 f4 Rd3 b3 Rg2 b2 Rg3 b1B Bb4 Nf6 g8R Be6 Be7 Qd2 Ra3 d3 Ra1 Na6 Kf1 f2 Kg2 f1B+ Kf2 f3 Bd8 Qe3+ Ke1 Nd5 Nh3 Rc8 Rhg1 Ka8 Nf4 Nc5 a6 Qd6 a5 Na4 a7 Rc4 R3g2 g3 Nh5 Qe4 Rf2 g2 Ra3 Qg3 Rg4 Bb4+ Rc3 Qe3 Bg5 Qe4 Bh6 d2+ Kd1 Qe3 Rg7 Qe4 Bd3 Qe3 Bg6 Bd3 Rgf1 g1B Be8 Qe4 Re2 Bd4 Rg1 f2 Rb3 Rf8 h8R Rf4 Rf8 Rh4 Rc3 Rh3 Rf3 Rc7 Bf7 Qg5 Rf5 Ba6 Rg4 Qh4 Be8 Qg3 Rf8 Rc5 Rcf3 Rc4 R8f7 Bbc3 Rc7 Bb4 Ree3 Bbc3 Ke2 Bb4 Kf1 d1Q+ Re1 Qd2 Rc1 Qde3 Rd1 Be1 Rd2 Qg2+
1R5n/R3Pqn1/r2NB2r/npb1q2P/2nq2R1/1Pk2pB1/2bR3K/r4R2 w - - 0 1 legal: proof: g4 a5 f4 h5 a4 hxg4 d3 e5 b3 exf4 Be3 d5 Qd2 d4 Qb4 axb4 Na3 bxa3 Rd1 a2 c3 a1Q cxd4 Bd6 d5 Bf8 Kf2 Kd7 Kg2 Kd6 h4 Ke5 h5 g5 d6 c5 a5 b5 d7 f5 a6 g3 a7 c4 Rc1 c3 Rb1 c2 Rd1 c1Q Bf2 f3+ Kh3 f4 e4 g2 Rh2 Qc4 Re1 Nf6 Rd1 g4+ Kh4 g3 Kh3 Rh6 Bc5 f2 Bd6+ Kd4 e5 f3 e6 Kc3 d4 Nc6 d5 Ne8 Bd3 f1N Bf5 Qb6 d8R Ne3 Rf1 Qbd4 Bg4 Bb7 Rb8 Na5 Rh1 Ng7 Ne2+ Kc2 Bc7 g1R d6 g2 d7 Bc5 d8R Be4 e7 Qf7 Kh2 Nec4 Ng3 Kc3 Nf5 Bc2 Bg3 Qe1 Nd6 Qee5 Rd1 Re1 Rf1 g1N Be6 Ne2 Rd2 Nf4 Re8 Ng6 Rg8 Nf5 Rg7 Nh8 Rg4 Ra1 Rbg8 Re8 a8R Ng7 Ra7 Rc8 Re8 Rc6 Rb8 Ra6
4n3/BqB2pB1/4b3/1nb1b1Pn/1R1rK1Pp/5Pb1/1R1Bb3/2QBb1kb w - - 0 1 illegal: No proof kernel
3rBq1q/1N5n/4p1Nk/N5Nq/rp1bBK2/2RbP3/1bP1Pp2/1Nnr4 w - - 0 1 illegal: No proof kernel
3Q2q1/2q2Bqp/2BbBp2/b2n2BP/RrR2P2/K3kPqp/5r1n/4qB2 w - - 0 1 legal: proof: d4 g5 a4 c5 h4 cxd4 h5 a5 Nf3 b6 Nh4 gxh4 Na3 Bb7 b4 axb4 f4 Bf3 exf3 bxa3 Kd2 d5 c4 Kd7 Kc2 Kd6 Kb3 Kc5 g4 e5 a5 e4 g5 a2 a6 e3 g6 e2 a7 e1B g7 b5 Rh2 h3 Rb2 d3 Rf2 Kd4 c5 b4 c6 d2 c7 Na6 c8B Nh6 g8B Ng4 Qc2 d1Q Bb2+ Ke3 Bd3 d4 Be4 d3 Rg2 d2 Bc6 Bd6 Bf6 Qc1 Rg1 d1Q Be4 Nc7 Bc6 Nh2 Rg2 Nd5 Rb1 a1Q Bg5 Qg7 B6d7 f6 Bf7 Qdg8 Ra1 Qdd2 Ra3 Qf2 Ba6 Qg3 Qc8 Qc7 Bde6 Rb8 Kb2+ b3 a8B Ba5 Ra4 Rb4 Ka3 b2 Bf1 b1Q Rc2 Qbe1 Bc6 Rb2+ Rc5 Rf2 Qd7 Qa8 Qe7 Rb8 Qd8 Rb4 Rc4 Qab8 Qd7 Qbh8 Qd8 Qhg8
1B1q2N1/1kb1Pq2/3pPppb/1B1K1Rnn/b1RB1q1r/B4b2/3P4/2B1r3 w - - 0 1 illegal: No proof kernel
1r1brb2/3p1P1p/Kp2B3/nbRB2NP/1b1p2r1/7q/2BP1B1R/k2r3B w - - 0 2 legal: proof: b4 c5 a4 f5 g4 e5 f4 a5 c3 axb4 Na3 bxa3 Qc2 Nc6 Qd3 Na5 Qd4 cxd4 Bh3 Nc6 Bg2 Nce7 Bf1 exf4 Bg2 f3 Bh3 f4 Bf1 Nf5 gxf5 Qe7 Nh3 Qf6 Ng1 Qd8 h4 Ke7 e4 Kd6 c4 Ke5 c5 g5 a5 g4 h5 g3 f6 b6 a6 a2 c6 f2+ Ke2 f3+ Kd3 g2 Kc4 Qc7 Kb5 Ne7 a7 Rb8 Nh3 g1B a8B Bh2 Bd3 f1R Bc2 f2 Ng5 Rg1 Ba3 f1R Rc1 a1B Bc5 Bg3 Rh2 Bh4 Bb7 Qd8 c7 Bc3 Ka6 Nc6 Be7 Qe8 Bd8 Qe6 Be7 Kf4 e5 Qh3 e6 Na5 Bd8 Ke5 e7 Rd1 e8B Rg4 Bf7 Bcb4 Be6 Kd6 f7 Kc5 Bf6 Rg8 Be5 Rh8 Bg3 Rg8 Nf3 Bd8 Bf2 Rh8 Ng5 Rg8 Ka7 Rh8 Ba8 Ba6 c8B Bb5 Bh1 Rg8 Bcb7 Rh8 Bef5 Kc4 Ba8 Bg7 Baf3 Re8 B3e4 Bgf8 Beg2 Bbe7 Be6+ Kb4 Bgd5 Ka3 Bhg2 Kb2 Bh1 Bc6 Ka6 Bb4 Bcb3 Ba4 Rc5 Ka1 Bc2 Bb5+
1R2n1r1/1N1B2rb/5r2/BR1p2p1/bb3Pp1/1k1P1p1R/3Kb1P1/Rr1R2n1 w - - 1 2 legal: proof: c4 a5 b4 axb4 Nf3 b5 Ng1 b3 Ba3 h5 Bc1 b4 Ba3 c6 Bb2 Qa5 Bc1 Qb5 cxb5 Ra6 Nc3 Ra4 Nb1 Ra8 e4 f5 Qg4 hxg4 Na3 fxe4 f3 Rh3 f4 Rh8 Nc2 Ra3 Nd4 Ra8 Ndf3 exf3 h4 Kf7 a4 Ke6 b6 Kd5 b7 e5 h5 g5 a5 b2 h6 b1B h7 e4 a6 c5 a7 b3 Bd3 b2 Bb5 e3 Rh2 c4 Ba6 c3 Kd1 c2+ Ke1 e2 Rh4 Bb4 Ra3 Nc6 b8R Nf6 Rb6 Rg8 h8R Nd4 Rb3 Rg7 Rb8 Ne8 Bb5 Ba6 Rh3 d6 Bc6+ Kc4 Bd7 d5 Rd3 Ba2 Rb5 b1B Rf8 Rb8 a8R Bb3 Bb2 Rb6 Bc3 Ba4 Rfh8 Rf6 Rg8 Bd6 Ba5 Bb4 Rgh8 Rg8 Rab8 Rg7 Ra3 Rg8 Ra1 Kb3 Rh1 Rg7 Nh3 Rg8 Nf2 c1R+ Nd1 Bd3 R8h3 Rc7 Nc3 Bh7 Ne4 Rb7 Nd6 Rc7 Kf2 e1R Nb7 Rb1 Ke3 Ne2 Rd1 Ng1 Rb6 Bad3 Rb5 Be2 d3 Nd6 Bc8 Rcf7 Bd7 Rfg7 Rc5 Ba3 Kd2 Ne8 Rb5+ Bb4+
BB1N2r1/Q3N1P1/b1Bp1p2/qr2B3/3bnK1B/3P1P1b/kqq1pn2/5qn1 w - - 0 1 illegal: No proof kernel
N1R5/P1N1k3/1p3p1n/1b1b2PR/pnNK1brn/3B2p1/PN3R2/2q1r3 w - - 0 1 legal: proof: c4 c5 d4 a5 b4 d5 f4 e5 g4 exf4 Kf2 h5 Qd2 a4 Qe1 h4 Bb2 Qa5 bxa5 cxd4 Qc3 g5 Qg3 hxg3+ Ke1 f3 cxd5 Ne7 Bc1 Ng8 Bf4 gxf4 Kd2 f6 Kd3 f2 h4 f3 e4 b6 h5 Kf7 g5 Bb7 d6 Na6 e5 Rh6 e6+ Ke8 d7+ Kd8 e7+ Kc7 e8N+ Kd8 Na3 Rh7 h6 Bd6 Rh5 Bd5 Ne2 Bf4 Nc7 Ke7 Nc3 Re8 d8N Rh8 h7 Nh6 Be2 f1Q Nc4 f2 Na8 Qc1 Nd1 f1N Ndb2 Ne3 Rb1 Ng2 Ne6 Nh4 Nec7 Kd7 Bd1 Re1 Be2 Ke7 Ra1 Rd8 h8R Rd6 Rf8 Re6 Rc8 Re4 Bf3 Be5 Rb1 Rg4 Be2 Bf4 Ra1 Be6 Ke4 d3 Kd4 d2 Bd3 Nb4 a6 d1B a7 Bd5 Rb1 Be2 Ra1 Qc2 Rd1 Qc1 Rd2 Bef3 Rc2 Bc6 Rg2 Bb5 Rf2 Bd5
n1r5/6bB/1BrP2K1/2brN1bN/1P2P2q/2Bb2r1/n1kN3n/1q3BRr w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Qa4 f5 Qb3 f4 e4 h5 Qf3 gxf3 g4 Ke7 g5 Ke8 b4 Ba6 Ra3 Nh6 Re3 Ng8 Re2 Bc8 Rg2 Qd5 Rg3 Qd8 Rg4 hxg4 Kf2 Ke7 d4 Kd6 h4 c5 d5 Ke5 b6 Kd4 g6 f5 h5 a5 b7 a4 g7 c3 h6 a3 h7 c2 Ba6 c4 Bb5 Kd3 Rh4 g3+ Kf1 a2 Ke1 a1B Nc3 g2 Kf2 Ra5 Be3 c1R Bc6 Bc5 d6 Na6 b8N Nc7 Bb7 Kc2 Bd4 Nf6 g8B Nfd5 Rh6 Na8 Bc6 Ba6 Nh3 g1R Nb1 c3 Bb7 Rg3 Bc6 Bd3 Bb7 Qh4 Bf7 Rc8 h8B Rh1 Rg6 Ra6 Ng1 Rac6 Ne2 Rd1 Ba6 Rd2 Ke1 f2+ Kf1 Bb5 Rf6 Bb6 Be8 Kd1 Be3 c2 Bg6 c1B Bb7 Kc2 Bh7 Nc3 Bg7 Na2 Nd7 Rd5 Ba6 Ba7 Rf7 Bf6 Bh8 Bcb2 Bc5 Bg5 Nd2 Bc4 Bcd4 Ba1 Bhf6 Bb6 Bd8 Bc5 Bb6 Bb5 Be3 Baf6 Ne5 Bg7 Bd4 Rd3 Kg2 f1N Ba1 Nh2 Bd4 Rg3+ Kf2 f3 Nf4 Bf1 Ke3 f2+ Ndf3 Rg2 Nd2 Bb5 Rf8 f1Q Rf6 Qb1 Rg6 B5f6 Nh5 Rg1 Rg3 f4+ Kf2 f3 Ke3 Rh1 Rg1 Be2 Bc4 f2 Bb5 f1R Ba6 Bg4 Be2 Rf5 Bf1 Rg5 Kf4 Bd8 Bc3 Be2+ Rg4 Rg6 Kf5 Bd3 Rg2 Rg4 Rg1 Bg5 Kg6 Rg3
1N1K2bk/3b1R1n/Rr1q2n1/Nn5N/bp5q/P1qR2PQ/NP1b4/1r1b4 w - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 h5 d5 cxd5 g6 Rh4 gxh5 Rh1 h4 d3 Qf6 e3 Qg5 Bd2 Qd8 Bb4 axb4 d4 Ra6 a3 Ra4 Bc4 Ra8 Ba2 b3 Qd3 bxa2 Qc2 Ra7 Qd1 Ra8 Kd2 h5 Kd3 c5 Ke4 b5 Ke5 f5 e4 Kf7 d6 Kg7 g3 h3 d5 b4 d7 f3 Ke6 f4 d6 c4 e5 f2 Qf1 c3 Qc1 f1B Nd2 c2 Qd1 c1Q Qf3 h4 Nc4 h2 Qf2 f3 Qb6 h3 Qc7 f2 Nf3 Ra6 Ne3 Qc3 Qc4 Be2 Rhc1 h1B Nd5 f1B Nd2 h2 Qb5 Ne7 Nb3 Rb6 Na5 Bd1 Rc2 Bfg2 Qf1 Ng6 Re2 Be4 Qh3 Bec2 Rf2 Bb3 Rc1 a1N Rf7+ Kg8 Rc2 Bh6 Rd2 Ba4 Rd3 Qf8 Kf6 Be4 d8N h1Q Ndc6 Nc2 d7 Bd2 d8R Nd4 e6 Bd7 e7 Bef3 e8N Qd6+ Qe6 Bdb3 Ng7+ Kh7 Rc8 Bfd1 Rc7 Rf8 Nh5+ Kh8 Ra7 Ba2 Ra6 Re8 Re7 Nb5+ Kf7 Qh4 Qh3 Bc8 Rea7 Nd7 Nb8 Re1 Rb7 Rh1 Ke8 Ndf8 Rg7 Nh7 Rf7 Qcc5 Nc3 Bcg4 Nf6 Bd7+ Kd8 B2b3 Na2 Qc3 Re7 Bg8 Nh5 Bdb3 Rd4 Rb1 Rd3 Qhf4 Rg7 Bd1 Rf7 Qh4+
1K4q1/1B1bkbPq/1R2b1qb/r6p/P2r1RRR/4b1P1/n1N2NN1/1bn5 w - - 0 1 legal: proof: e4 e5 b4 c5 d4 cxd4 h4 g5 hxg5 a5 Qe2 axb4 Be3 d3 Bd4 exd4 e5 f6 e6 Qc7 Qe4 Qd8 Qe5 fxe5 Kd2 d5 a4 b5 f4 h5 c4 e4 f5 b3 c5 b2 f6 b4 f7+ Ke7 g6 b3 g3 e3+ Kd1 d2 Ke2 d1B+ Kd3 e2 c6 e1B c7 Bf2 Rh2 Nc6 Ra2 Bg4 Bg2 Ra5 Rh4 Be3 Bh1 Bd7 c8R Bfh6 f8N Nf6 g7 Ne4 Ra8 Nc3 Na3 b1Q+ Rc2 b2 Nh3 Na2 Ra6 Qb8 Nh7 Qg8 Nf6 Bf5+ Ne4 Ncb4+ Ke2 d3+ Kf3 d2 Rc4 d4 Rb6 d3 Nf4 Bg6 Nc2 Bf7 Nf2 d1Q+ Ke4 d2 Ng2 Nd3 Rf4 Qg4 Rd4 Ke8 e7 d1B Rc4 Bde6 Rcb4 Kd7 e8R Ndc1 Rf8 Qg5 Rg4 Ke7 Rd4 Bd7 Rdb4 Bfe6 Rff4 Bf7 Rh4 B1g4 Rd4 Bge6 Rc4 Qg4 Rd4 Bd5+ Ke5 Qg6 Rfg4 Q6h7 Rdf4 Bfe6 Na1 Qbg6 Nc2 Kd8 Kd6 b1B Nge1 Ke8 Kc7 Ke7 Bf3 Bf7 Ng2 B5e6 Bd5 Qa8 Bb7 Rd8 Rd4 Bb5 Rdf4 Rd4 Bf3 Qag8 Bb7 Bbe8 Kb8 B8d7+
q2BqbK1/1N1n1BPB/Pq4nR/N6r/2Ppr3/1b1q1n2/N1kq4/2nN4 w - - 0 1 legal: proof: b4 a5 g4 axb4 d4 c5 a4 cxd4 f4 h5 Qd3 e5 Qf5 g6 fxe5 gxf5 g5 f4 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Kf2 Ke7 e4 Ke6 h4 f5 a5 b5 a6 d5 c3 g3+ Kf3 d3 h5 d4 g6 g2 h6 b3 h7 b4 g7 b2 Nh3 g1N+ Kf2 b3 Bd2 f3 Kg3 f4+ Kg4 f2 Kh5 f3 Kg6 Ne2 Bg2 f1Q Bf4 d2 Nf2 d1Q Bg5 Qfe1 Rh6 Qdd2 Nd1 f2 c4 f1Q Bf6 Bd7 Nbc3 b1N Na2 b2 Bf3 Qc8 Bd8 Nc1 Be2 Bc6 Bd3 Ba4 Bc2 Bb3 Bd3 Kd7 e6+ Kd6 e7 Ke5 e8B Nd7 Bf7 Kf4 e5 Ne7+ Kh5 Qc6 e6 Ng6 e7 Qee4 Bc2 Qfd3 e8N Kf3 Nd6 Ke2 Nb7 Qe8 Na5 Rc8 Ne3 Qa8 Nd1 Rc6 Bc7 Re6 Bd8 Qb4 Kg5 Nd2 Kh5 b1Q Kg5 Rg8 h8N Nf3+ Kh5 Qdd2 Be4 Qb6 Bc2 Ne7 Bf5 Re4 Bh7 Nc6 Kg6 Kd3 Rh2 Kc2 Rh6 Qe5 Bd5 Qe7 Nf7 Rh8 Nd6 Qe5 Kf7 Ne7 Ndb7 Qeb8 Bf5 Ng6 Bde6 Rh7 Kg8 Qe5 Bf7 Qe8 Rh3 Rh5 Rh2 Nge5 Bh7 Ng6 Rh1 Qb2 Rh4 Qbc3 Rh3 Qcd3 Rh4 Rb5 Rh6 Rh5
bq1qb1N1/Q4K2/2Rr3r/2NRb2k/1pn5/b2RnP2/PP1N2q1/2r1r1R1 w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 Qb3 gxh4 Qa4+ Qd7 Qd1 Qd8 d4 a6 Bd2 a5 Bb4 axb4 Bd3 b3 Bc2 bxc2 Kd2 Kf7 Kc3 Kg6 Kc4 c1B g4 e5 g5 c5 d6 h5 Kd5 b5 d7 c4 Ke6 e3 d5 h3 d6 e2 Qe1 e4 Qf1 e1R Nf3 h2 Qd3 h4 Qe2 h3 Rg1 h1B Rg4 c3 Ng1 e3 Nf3 h2 Nh4+ Kh5 g6 c2 g7 Ne7 g8N Nf5 Nc3 Rh6+ Ng6 Ra6 Kf7 Ba8 f3 h1Q Qg2 e2 Rb4 Nc6 Na4 Na5 Nc5 Nc4 Ne5 Nfe3 Qg1 Qg2 Ra4 Rb6 Ra6 Bd2 Rc1 Bc3 Rb1 c1R Qf2 Na3 Nc4 Be5 Nd2 Nac4 Ra1 Rh1 Qg1 e1Q Rb1 Qeg3 Ra1 Qdg5 d8R Bd7 Qf2 Rhe1 Qg1 Bf5 d7 Rbd6 Rc6 Be7 Re8 Bf8 d8R Bc8 Re7 Q5h4 Ra7 Bd7 Ra3 Qd4 Rd3 Qdh4 Re8 Qd8 Re6 Qgg5 Rf6 Qb8 Rf4 Qgd8 Rfd4 Rdg6 Rd5 Bd6 Nb7 Ba3 Nc5 b4 Qf2 Rd6 Qg1 Rc2 Rd1 Rc1 Qf2 Re2 Rg1 Ree1 Na4 Nf1 Qa7 Nfe3 Nc5 Be8+
r1qqnqrN/rq1b1b1B/2Bp1P1N/8/NP6/r4Q2/1P3BnK/5kbN w - - 0 1 illegal: No possible last move
2BB2n1/Nn1r1kPn/2b5/1P1pP1B1/7N/b2r1bR1/BnnnN2b/1q3K2 w - - 0 1 illegal: No possible last move
1br1n2n/P1BB1k2/p1RrNb1r/2nn4/2P2RP1/2RpBqR1/1K1n4/7b w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 d4 c5 b5 cxd4 a4 Ra7 Nc3 Bg7 Nd5 Be5 Nb4 axb4 a5 Bf4 a6 Ra8 a7 Bh6 Qd2 Bg7 Qh6 Bf8 Qa6 bxa6 Kd2 e5 g4 d5 f4 h5 c4 h3 Kc2 e4 b6 d3+ Kb3 h4 b7 d2 f6 d1N f5 d4 Bd2 h2 Ra3 e3 Ra5 e2 Rb5 e1B Ne2 d3 Bc3 h3 Nc1 Ne3 Rb6 Rh6 Bd2 Bg3 Rg1 h1R Bc3 h2 Ka2 b3+ Kb1 b2 Rb3 Nd5 Bd4 Be7 Bc5 Kf7 Ne2 Nc6 b8B Qf8 Bc7 Nd8 B5b6 Bb7 Bg2 Rc8 Nf4 Bc6 Ka2 b1N Kb2 Nd2 Ne6 Rg6 Be3 Bb7 Bcb6 Bb8 Rc3 Ba8 Bf3 Rh6 Rg2 Rf1 Bc7 h1N Bd1 Nf2 Ba4 Nfe4 Rg3 Nc5 Bd7 Ndb7 Bg5 Nd6 Bf4 Bd8 Be3 Nge7 Bf4 Ng6 Be3 Kg8 f7+ Kh7 f6 Nh8 Ra3 Kg6 Rb3 Ne8 Rc3 Qe7 f8R Qf7 Bd6 Rf4 Bc7 Rd4 Rg8+ Qg7 f7 Bf6 f8R Bb7 Rf7 Bc6 Rgf8 Ba8 Re7 Qf7 Ng7 Bc6 Re6 Ba8 Rg8 Qf8 Rc6 Kf7 Ne6 Qe7 Nf8 Qe4 Ne6 Qf3 Rg5 Nb4 Rf5 Rd6 Rb6 Be4 Rf4 Nd5 Rc6 Qe2 Ka2 Bh1 Kb2 Qf3
6r1/n2R3n/1Q2bBK1/qB1Pr2B/2pP2n1/q2P1kbp/1q2Rnn1/B4R2 w - - 0 1 illegal: Other
2nNrn1b/QBk2q2/B1B1b1P1/3n2p1/P3qN1p/2N1PrB1/r1b5/3K1b2 w - - 0 1 legal: proof: d4 e5 f4 a5 fxe5 c5 b4 axb4 h4 cxd4 a3 g6 h5 g5 g4 h6 a4 Qc7 Rh4 Qd8 Ra3 Bg7 Rg3 gxh4 g5 Bf8 g6 Nc6 Rg4 Nb8 Rg5 hxg5 c4 d5 h6 Kd7 e6+ Kc7 e3 b5 e7 f5 e8B d3 h7 f4 c5 f3 c6 d2+ Kf2 d4 Bh3 b3 Ne2 b2 Bg2 b4 Nec3 b3 Na2 d3 Qe2 d1N+ Ke1 f2+ Kd2 f1B Ke1 Nc3 Qf3 d2+ Kf2 d1B Ke1 Bc2 Qe2 Bg7 Bd2 Nd7 Qa6 Qe7 Nc1 Nf8 Nd3 Be6 Nf4 Nd5 Nc3 Qf7 Bf3 Nge7 Qa7+ Kc8 c7 b1Q+ Bc1 b2 Bc6 Rg8 h8N Rb8 Bh1 Rb3 Bg2 Ra3 Bb7+ Kd7 c8B+ Kc7 Be4 Ra2 Kd2 Qf5 Nf7 Bh8 Nd8 Qf7 Bf3 Nb6 Bfc6 Nbd5 B8d7 Nc8 Ba6+ Kd6 Bcb7 Kc7 Bdb5 Nd7 Ke1 Re8 B5c6 Nf8 Kd2 Qa1 Ke1 b1R Kd2 Rb6 Bb2 Qb1 Ba3 Qb4 Kc1 Qe4 Be7 Bcd3 Kd1 Rbb2 Bf6 Rf2 Bg7 Rf3 Be5+ Nd6 Nh3 Bb1 Bg3 Bbd3 Nf4 Nc8 Ke1 Bb1 Kd1 Bc2+
1B6/b4n2/nRR4n/PKb3p1/1B1n1Pb1/1P1nr2k/2B4p/NqRB1br1 w - - 0 1 legal: proof: h4 b5 e4 a5 c4 bxc4 b3 g5 hxg5 d5 Be2 dxe4 Qc2 a4 Bf1 a3 g4 Nh6 g6 Na6 g5 Ra7 g7 Ra8 Nc3 Ng8 Nd5 Nb8 Qb2 axb2 Nf4 f6 g6 Qd3 Nfh3 Qd8 Ng5 fxg5 Ke2 Kd7 d4 Ke6 a4 Kf5 f4 Kg4 d5 b1B d6 h5 d7 c5 a5 e5 Ba3 c3 Rh2 h4 Nh3 c2 Kd2 c1N Kc3 c4 Rh1 e3 Bc5 e2 Kb4 e1B+ Ka4 e4 Ng1 c3 Rh2 c2 Bc4 h3 Bb6 e3 Bc7 e2 Ba6 Bf2 Ra2 e1N Nf3 Ned3 Ne1 Ba7 Rh1 Ne5 Kb5 Nh6 g8R Ncd3 g7 c1N Nc2 Ne2 Na1 Nef7 Rc2 Bfc5 Rhc1 h2 Rf8 Kh3 g8B Rh7 Bb7 Na6 Bb8 Qf6 d8B Qg6 Re8 Bg4 Bf3 Rg7 Bh7 Nd4+ Kc4 Rg8 Re6 Re8 Rb6 Re1 Be7 Rg1 Bd1 Qf5 Bc7 Re8 Bb8 Nf3 Bf8 Re3 Kb5 Nd4+ Ka4 Bd6 Rcc6 Bc5 Bfd6 Nf2 Bf8 Bd3 Bg6 Bde2 Bh7 Qb1 Bhc2 Nd3 Bfd6 Nf3 Kb5 Bf1 Bf8 Bd4 Ba3 Bc5 Bb4 Nd4+
2k1rnrB/3q1B2/n3qN1q/3Rp2b/2BpBP2/4R3/2RP1q1P/2b1nn1K w - - 0 1 legal: proof: b4 b5 e4 f5 a4 fxe4 Be2 g5 Bf1 g4 axb5 c5 Bb2 cxb4 Ba3 Nh6 Bc1 Ng8 f4 h5 Qf3 Qc7 Na3 Qd8 Nc4 Na6 Ne5 gxf3 g4 Nb8 g5 Bg7 Ng4 hxg4 Bh3 Bh6 Bf1 Bf8 Kf2 d5 c4 Kd7 b6 a5 g6 e5 g7 b3 b7 g3+ Ke3 a4 c5 a3 Nh3 a2 Bb2 f2 Ng5 g2 Nf3 g1Q Bc4 Nf6 g8B Na6 b8R Nh7 Bf7 Rg8 Rc1 a1Q Rc2 Qa2 Ba3 b2 Rb5 b1Q Ng5 f1N+ Ke2 e3 Kf3 e2 c6+ Kc7 Ne4 d4 Rd5 Qb6 Be7 Qd7 Bf6 Ba3 Bh8 Nf8 Nf6 Kb8 c7+ Kb7 Bd3 Bc1 Bdg6 Qe3+ Kg2 Qbd6 Rg1 e1N+ Kh1 Qf2 Rg3 Q6e6 Re3 Qc4 Ne8 Qcc6 Be4 Qh6 Nf6 Qde6 Rd6 Bd7 Rd5 Be8 c8B+ Kb8 Bb7 Qcd7 Bc6 Kc8 Bb5+ Qec6 Be6 Bh5 Bc4 Rb8 Bf7 Qce6 Rd3 Kb7 Rf3 Re8 Re3 Kc8
bnR1r3/2b3Rr/nB2qP1B/b2R3R/k3p1qP/r3Br2/1p2PQ1p/1K6 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g3 axb4 Nf3 g5 Bg2 f4 Ng1 f3 Qc2 fxg2 Qb3 Nh6 Qd1 Ng8 h4 h5 Nh3 g4 Nc3 gxh3 g4 Ra6 g5 Ra3 Ne4 Ra8 Nf6+ Kf7 Ng4 hxg4 Qc2 Ke8 Qb3 Ra3 Qd1 Ra8 a4 Kd7 f4 g1R+ Kf2 e5 Ke3 b5 Kd3 c5 Kc2 e4 d4 g3 d6 Kc6 f5 b3+ Kb1 c4 g6 b2 a5 g2 g7 c3 d7 h2 f6 c2+ Ka2 b1R a6 b4 a7 Kb5 d5 Bd6 Ba3 c1B Qd4 Na6 Qb6+ Ka4 Qc5 Rb3 Qf2 Qe8 d8B Rf3 Bb6 b3+ Kb1 b2 Be3 Bc7 d6 Qe6 d7 Rh7 d8B Ne7 g8R Nc6 Rg7 Bb7 Ra2 Ba5 Bdb6 Re8 a8R Ncb8 Bh6 Rf1 Bac5+ Ra3 Bce3 g1Q Ra1 Qgg4 Ra2 Nc6 Rc8 Ncb8 Rg1 Bd5 Rg5 Ba8 Rh5 Qh3 Rg7 Qhg4 Ra1 Bcd2+ Kc2 Bdb4 Rd1 Bd6 Rd3 Bc7 Rdd5 Be1 Kb1 Ba5+ Qe1 Rf4 Qf2 Rf3
1q2nr2/6r1/K1PNBnpR/1p2NN2/2q2N1B/1P1q1b1p/1P3n2/2r2kBr w - - 0 1 illegal: Other
r1n2KN1/b1r2pp1/b1P1QRp1/1p3bN1/2N3q1/3knP1P/3N1R1R/3bq3 w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 Ba6 b6 Bc8 b7 Nh6 g5 Ng8 g6 Na6 b8N hxg6 b4 c6 b5 Nc5 b6 Qg5 b7 Nf6 Bf4 Qh4 Bc7 Ng8 Bb6 axb6 Bg2 Na6 Bd5 Qf6 Bc4 Qd8 Bb5 cxb5 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 e4 d5 f3 b4 Nd7 b5 b8R b3 Rb6 d3 Rf6 d2 Qe1 d1B Ra2 b2 Nd2+ Kc3 Nh3 b1B Ng5 d4 h3 d3 Rh2 Bc5 Nb6 Nc7 Nbc4 Ba7 Qe3 Qe8+ Kd6 Ne7 e5 Ba6 e6 Ncd5 Qe1 Ne3 Rb2 N7d5 e7 Qc8 e8N Nb6 Ke7 Qg4 Ra2 Rh4 Kf8 Nc8 Rb2 Nd5 Qe6 Ne3 Nb6 Kd4 c4 Bbc2 c5 Kc3 Nb3 d2 Nc4 Bf5 c6 Kd3 Nc7 Rh7 Nd5 Rh4 Ne7 Rh8+ Ng8 Be2 Rf2 d1Q Rc2 Qe1 Rb2 Bd1 Ra2 Rb8 Rh2 Rb7 Raf2 Rc7 Nbd2 Nb6 Ke8 Rc8+ Ke7 Ra8 Nh6 Rhb8 Ng8 Nc8+ Ke8 Rb7 Kf8 Rc7
1QRN4/b2p4/1pPq3p/2b1Pb2/1qR3N1/R1qP1Kn1/1k1pN1r1/3rqN2 w - - 0 1 legal: proof: g4 c5 f4 f5 b4 fxg4 b5 e6 b6 c4 d3 c3 Bd2 cxd2+ Kf2 axb6 Nf3 b5 Ng1 b4 f5 g5 f6 Nc6 Bh3 g3+ Kf1 Ne5 Bf5 exf5 h4 g4 Na3 Nf3 Nb1 Ng5 hxg5 Ra4 Na3 Ra5 Nb1 Ra8 Kg2 Kf7 e4 Ke6 a4 Ke5 c4 Kd4 g6 f4 e5 b3 a5 h6 c5 f3+ Kf1 b2 a6 g2+ Kf2 Ne7 f7 Rg8 g7 Qb6 a7 Nf5 Nh3 g1B+ Kf1 g3 Ra3 f2 Kg2 Qd6 Nc3 b1Q Ne4 Qb4 Kf3 g2 Nf4 Ng3 Qb1 Rb8 a8R f1Q+ Nf2 Qe1 Ng4 Qc1 Ne3 Qcc3 Nf1 Bf2 Rh4 g1Q Ne3 Qe1 Nf1 Qcb3 Rg4 Kc3 c6 Ba7 Rh4 Be7 f8N b6 Qa2 Ba6 N8e6 Rbf8 Rc8 Bc4 Nd8 Be6 Rg4 Bf5 Qa1+ Kc2 Ne2 Q3c3 Rc4 Rh8 g8N Rf6 Qd1+ Kb2 Qa4 Rg6 Nf6 Rhg8 Qa5 Rg4 Qa6 Rh4 Ng4 Rh1 Qb7 Rg1 Nf6 Rg4 Qb8 Rg2 Ra6 Rh4 Ra4 Rh1 Ra3 Qdd4 Rc7 Bc5 Ng4 Qd6 Nfe3 Qg1 Rc8 Qh2 Ra5 Rd1 Ra6 Qh1 Ra3 Qe1 Nf1 Be3 Nb7 Bd4 Nd8 Bc5
b7/B2pknp1/1BPpN1rN/p1BP3b/1P2NpB1/Kq5n/1r6/3Rr2q w - - 0 1 illegal: No proof kernel
1R2b1b1/R3b3/1n1p1K1B/1BnP2p1/2r1Q2r/1bR1RBq1/1kbPprP1/1b6 w - - 0 1 illegal: Other
1q1k1NR1/Np2bnpb/1P1rn3/8/2p3P1/3Pr1rb/3RQrRK/1rNrR3 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 a5 g3 e5 Kf2 exf4 Ke1 h4 Bg2 h3 Ba3 hxg2 Bb4 axb4 Kf2 f5 e4 c5 a4 b3 h4 b2 d3 f3 a5 c3 h5 c4 e5 f4 b6 c2 h6 c1R g4 Be7 h7 Nh6 e6 Nd7 a6 Nf8 a7 Nf7 Qe2 Rd1 Na3 b1R Rh2 Qc7 Ra2 Kd8 Nb5 Qb8 Rd2 Rg8 Nh3 g1R h8N Rg3 Ng6 Rh8 Ng1 Rh6 Rg2 Bd7 Nh4 Bc6 Ng6 Be4 Qf1 Bf5 Ne2 Rhh3 Kg1 Rh6 Nh4 f2+ Kh2 f3 Nc1 Bh7 Qe2 Rf6 Ng6 f1R Nd4 f2 Nb5 Nd7 Nf8 Nc5 Nc3 Rfe1 Nb5 f1B Qe5 Qc7 Qe2 Rc8 a8R Qb8 Ra1 Rf2 Na7 Rc6 Nb3 Rd6 Nc1 Bg5 e7+ Ke8 Qf3 Re3 Qe2 Bf6 Ng6 Kd7 e8R Ne6 Rg8 Be7 Nf8+ Kd8 Raa2 Rff3 Rg1 Bh3 Rg2 Rg1 Rd1 Rgf1 Rad2 R1f2 Rg1 Rf1 Rh1 Rd1 Re1 Rf2
b4r1n/bBBb4/n3pq2/4Q1Br/3Pqn1p/KRp4b/1nP1P1k1/2BR1R2 w - - 0 1 illegal: No proof kernel
B1r1N3/NN2npBk/1BrpB2q/2q2P1b/b3P2r/3K4/r1QPb1pb/6n1 w - - 0 1 legal: proof: b4 c5 a4 cxb4 f4 h5 g4 hxg4 h4 a5 f5 e5 Rh2 Ra6 Rf2 Ra8 Rf4 exf4 Ra2 Rh6 Ra3 Rh8 Rc3 b3 Rc4 Ne7 Rd4 Ng8 Rb4 axb4 e4 b5 Ke2 g5 c4 b2 c5 f3+ Kd3 f2 a5 b3 c6 g3 a6 b4 c7 g2 h5 g4 h6 g3 a7 Qf6 h7 Nc6 Na3 b1R Qc2 b2 Nf3 g1Q Bh3 g2 Ke3 f1B+ Kf4 b3 Nd4 Bca6 c8B Qh6+ Kf3 Bfe2+ Kg3 Ne5 Bg4 Bd6 Bb7 Kf8 Ndb5 Kg7 Bh5 Ra1 Nc4 b1B Na5 Rc8 a8N b2 Na7 Qc5 Nc7 Ne7 Ba8 Ra2 Nb7 Nf3+ Kg4 Bh2 Ne8+ Kf8 Nc7 d6 Ne8 Bg1 Kg3 Bab5 Bg4 Ba4 Bh5 Rc6 Bg4 Rg8 h8B Bd1 Bd4 Bh2+ Kf2 Ng1 Bh5 Rh8 Ke1 Kg8 Be2 Kh7 Bc4 Bh5 Bb3 Rg8 Be6 Rg4 Kf2 Rf4+ Ke3 Rc8 Qb3 Bd3 Qc2 b1R Bb2 Bde2 Bc3 Rc6 Ba5 Rc1 Bb6 Qa5 Bg7 Rh4+ Kd4 Rc8 Qb2 R1c6 Qc2 Bef3 Kd3 Qc5 Bb3 Bd1 Be6 Bde2#
8/1NN1r1pn/1npp4/2bPp1B1/1r1kBnP1/1q4bP/4bbbB/1K1BN2R w - - 0 1 illegal: No possible last move, all moves rejected
3B4/1qqp2n1/NB5P/1P5n/1b2rkqB/QPrQ1B2/4qn1K/3qN2b w - - 0 1 legal: proof: g4 a5 d4 c5 h4 cxd4 e4 h5 b3 hxg4 Be3 f5 exf5 a4 Bc1 b5 a3 b4 axb4 a3 b5 a2 Na3 Rh6 Rb1 axb1Q Rh3 Qa1 Nb1 Rh8 Rc3 Bb7 Rc8 Bxc8 c4 Kf7 f4 Kf6 Kf2 g5 Kg3 e5 h5 d3 h6 e4 c5 d2 c6 e3 c7 e2 Kh2 e1Q Qe2 d1N Kg2 g3 Qe8 g4 Qe4 Ra4 Nc3 Nc6 Na2 Nce7 Nf3 Nf2 Qd3 Qe2 Ne1 Re4 Nb4 Qa8 Na6 Bb7 c8Q Qc7 Be3 Qab8 Kg1 g2 Bb6 Bd5 Qe8 Qbb7 Qa8 Bc6 Kh2 Bd5 Kg3 g1Q+ Bg2 Qgf1 Bf3 Qh1 Ng2 Qhd1 Ne1 Bc6 Kg2 g3 Kg1 g2 Kh2 Nc8 Qa7 Bb4 Qa8 Nd6 Qa7 Kf7 f6 Kg6 f7 Kf5 f8B Nf6 Be7 Nde8 Bd8 Nh5 Qa8 Rg8 Bh4 Rg3 Bd8 Ke6 f5+ Ke5 f6 Kf4 f7 Neg7 f8B Bd5 Bfe7 Bc6 Bg4 Rf3 Bh4 Bd5 Qc4 Rc3 Bf3 Ng4+ Kh3 g1Q Qd3 Qd4 Qa7 Nf2+ Kh2 Re7 Bg4 Bh1 Bf3 Re4 Nb8 Rc2 Qa3 Rc3 Na6 Qdc4 Qa5 Qe6 Qa3 Qg4
1R5B/2bBr1Q1/2Q2BRb/1P2nP2/3n3p/1q4pK/Pb4b1/Br2qq1k w - - 0 1 legal: proof: c4 a5 g4 f5 h4 b5 b4 d5 e4 g6 h5 Bh6 Nf3 Bf8 Ne5 Qd7 hxg6 Qd6 g5 Qd8 Ng4 fxg4 Na3 Be6 Nc2 Bc8 exd5 bxc4 b5 Bg7 Nb4 axb4 Qe2 Bh6 Qd1 Bf8 d4 Kd7 f4 Kd6 Kf2 e5 Kg3 h5 g7 c5 f5 c3 g6 b3 Bc4 e4 Be3 c2 Rb1 c1B Qd2 b2 Qg2 Bb7 Qe2 Nd7 Bf2 e3 Qd2 e2 Kh2 e1Q Qe2 g3+ Kg2 Ne7 g8Q Bch6 g7 Nc6 Kh3 Ra7 Rc1 b1Q Qf7 Qf6 g8Q Qb3 Qfe8 Nde5 Qg7 Qg5 Qe4 Qf4 Qg2 Ba8 Be3 Re7 Bd2 Rh7 Bc3 Qff1 Ba1 Bf4 Rc3 Rh6 Re3 Rhe6 Re4 Bh6 Rg4 h4 Rg6 Bf4 Bd3 c4 Be4 c3 Rg1 Kc7 d6+ Kb6 d5 Kc5 d7 Kd4 d8B Ke3 d6 c2 d7 c1B Bd5 Nd4 Bc6 Bb2 Ba5 Bh6 d8B Kf4 Bd7 Bf3 Bac7 Rc6 Ba5 Rc1 Bc3 Rb1 Rh1 Re6 Rh2 Bd6 Bf6 Re7 Qa8 Bc7 Qc6 Qd3 Qc2 Ke3 Rd2 Qde2 Rd3+ Kf2 Re3 Kg1 Re4 Ne6 Ra4 Qec4 Ra8 Kh1 Rb8 Nd4 Qf7 Ne2 Bh8 Ng4 Bcf6 Ne5 Qg7 Nd4 Qf2 Qcf1+ Qg2+ Bxg2+
2K1kqQ1/6Q1/bp1Q1rn1/npp3R1/R3Pr2/1P2p3/Brn1BP1b/5Q2 w - - 0 1 legal: proof: e4 e5 c4 d5 d4 h5 Nc3 f5 Qb3 f4 Qb6 axb6 g4 b5 gxh5 Rh7 Be3 fxe3 Nf3 Rh6 cxd5 Rh8 d6 Ra7 d5 Ra8 Nd4 exd4 Bd3 dxc3 Be2 Ra7 Bf1 Ra8 Ke2 g5 Kd3 g4 Kd4 c5+ Ke5 b6 h4 c2 a4 c1R h6 g3 a5 g2 h5 g1N h7 Bb7 Ke6 Ra6 h6 Qc7 d7+ Kd8 Rh5 Qf4 Be2 Rc2 Ra4 Rc3 Rg5 Ra8 a6 Ne7 a7 Rg8 h8Q Ng6 h7 Rb3 Qd4 Nf3 h8Q Nc6 Qh1 Ba6 Qg7 Na5 Qf1 Rc8 a8B Ne1 Bb7 Bd6 Bc6 Qf8 Ba8 Bh2 Bb7 Kc7 d8Q+ Kb8 Kd7 Nc2 Qde7 Rc6 d6 Rh8 Qef7 Rh4 Qfg8 Rf4 Ba8 Rc8 Bc6 Nb7 Bd5 Re8 Bdc4 Re6 Bd5 Ref6 Bdc4 Rd3 Ba2 Rd1 b3 Rb1 Rd5 Rb2 Rg5 R6f5 Ke6 Kc8 d7+ Kc7 d8Q+ Kc6 Qdd1 Rf7 Qd5+ Kc7 Qde5+ Kd8 Qd6+ Ke8 Kd5 Rh4 Kc6 Rf6 Kc7 Rhf4 Kc8 Na5+
b1N3q1/B1k1BB2/r2b4/r1q1q1Qn/4n3/1NnK2PP/3P2Q1/qb1B2nr w - - 0 1 legal: proof: c4 b5 f4 e5 b4 exf4 a4 g5 axb5 d5 Ra3 dxc4 Rf3 g4 e3 h5 Nh3 gxf3 g3 h4 Nf2 h3 Rg1 Qd6 Rg2 hxg2 Qe2 Qd7 Qd1 Qd8 h3 Kd7 e4 g1N e5 a5 b6 c5 b7 f5 e6+ Kc7 b5 a4 e7 c3 e8B c2 Bd3 c4 Bd7 c3 Ng4 f2+ Kf1 a3 Bc6 a2 Bb2 a1Q Be2 c1Q Na3 c2 Bd3 Na6 Ne3 Rh5 Bce4 Be6 Qe1 Ba2 Nec4 Nf6 Nd6 Nc5 Be2 Ra6 Bc6 Nce4 Ndc4 Bd6 Na5 Qg8 Be8 Rg5 Bf3 Nh5 Bf6 Qe5 Nb3 Qca1 Bd1 c1N Bf7 Nce2 Nc4 N2c3 Be7 Qc1 Kg2 f1R Qe2 Re1 Nb6 f3+ Kh1 f4 Nc8 f2 Kg2 Qa3 Qg4 Qac5 b8B+ Kb7 Ba7 Kc7 Qh4 Rf5 Qg5 f1Q+ Kh2 f3 b6+ Kc6 b7 f2 b8Q Kd7 Qa8 Kc7 Bg4 Ra1 Qd5 Qb1 Kh1 f1B Bd1 Be2 Kg2 Bf3+ Kf1 Qb2 Qc4 Rc1 Ke1 Qa1 Qf1 Nf2+ Qe3 Ba8 Qg2 Nfe4 Qg5 Rf2 Qf1 Rh2 Qg2 Rh1 Kf1 Rb1 Na5 Rb5 Nb3 Rba5 Ke1 Qb4 Kf1 Nef6 Kf2 Nfe4+ Ke3 Qbc5+ Kd3 Bb1+
1bk3K1/3NnrnP/3nQP2/2b2r2/3Q1BPq/Qq2r1nb/Bpn3Q1/3N4 w - - 0 1 legal: proof: c4 f5 b4 a5 f4 axb4 e4 fxe4 f5 g5 a3 d5 cxd5 Bh6 Ra2 Bg7 Ra1 Bf8 a4 h5 Ra3 Qd7 Rf3 Qd8 Rf4 gxf4 h3 h4 g3 Nf6 g4 Ng8 Rh2 Kd7 Rg2 Ke8 Rg3 hxg3 h4 Qd6 Qb3 Qd7 Qd1 Qd8 Ke2 Kd7 d4 c5 d6 b5 a5 e5 d5 e3 Kd3 e2 Ke4 e1R+ Qe2 f3 h5 f2 h6 b3 h7 c4 a6 b4 a7 b2 Bd2 b3 Bh6 c3 Qe3 c2 Be2 c1Q Ba6 f1N Na3 b1N Bc4 b2 Ne2 g2 Qf2 g1B Qc5 Qd1 Nb5 Bh2 Qd4 Qh4 f6 Nc6 Kf5 e4 Kg6 e3 Kf7 Na3 Qd3 Bb7 Nf4 e2 Qc3 Qb3 Ng6 Nd4 Ne5+ Kc8 Nd7 Ne7 Bf4 Ndf5 Qe3 Bg3 Qe6 Ng7 Nc3 Nb5 Nd1 Rb8 a8Q Bh2 Bg5 Ng3 Qa3 Rf1 Bf4 e1N Qe4 Nc2 Qg2 Qd3 Ba2 Qb3 Bg5 Rf5 Bf4 Bc6 Nb6+ Kb7 d7 Re8 d8Q Rg8 Qdd6 Rh8 Nd7 Kc8 Qe6 Bb7 d6 Bd5 Qg1 Bg2 Qb4 Bh3 Qf1 Bg1 Qg2 Ba7 Qa3 Bb8 Qed5 Nc6 Qc4 Re3 Qe6 Be7 Qe4 Re8 Qg2 Bf8 Kg8 Re7 Nc3 Rf7 Nd1 Be7 Ne5+ Kb7 d7 Bc5 d8Q Nd6 Nd7 Qb6 Qf2 Qb3 Qb6+ Kc8 Qg2 Rfe5 Qbb4 Rf5 Qd4 Ne7+
2QKRbR1/3nqb1r/bQ6/4b3/p2n4/P1P3r1/qQQB3P/2r1qnBk w - - 0 1 legal: proof: f4 f5 e4 fxe4 g4 d5 b4 g5 f5 h5 Nh3 d4 Kf2 d3 Nf4 gxf4 g5 Bg7 Nc3 Bf8 Be2 c5 Bg4 hxg4 Ne2 dxe2 bxc5 Qd3 Rb1 Qd6 Ra1 Qd8 d4 Kd7 c6+ Kd6 g6 Kd5 a3 e1B+ Ke2 b5 f6 a5 c7 e5 f7 a4 c3 b4 g7 e3 Kd3 g3 Qf3+ e4+ Ke2 b3 Rg1 g2 Rf1 g1Q Bd2 b2 Qg2 b1B Qg4 f3+ Kd1 f2 Ke2 Rh7 Qf3 Nd7 Qg2 Ne7 g8Q Nf5 Q8g6 Ba2 Qb6 Qe7 Qb2 Qh1 Rg1 f1N Qf2 Rb8 Rg8 Qg2 Qc2 Bb7 c8Q Ra8 Rd1 Ra6 Rb1 Rg6 Rb6 Rg3 Re6 Qd6 Re8 Qe7 Qb2 Ba6+ Qc4+ Kd6 d5 Ke5 d6 Nd4+ Kd1 Nc6 Kc2 e2 Qd3 Bd5 Qfb6 e3 Qg6 Kf4 Qd3 Nc5 d7 Kf3 d8Q Nd7 Qc8 Kf2 Qe4 Kg1 Qg6 Kh1 Qe4 Bg7 f8B Bf7 Qg6 Be5 Bg7 Bd6 Bd4 Be5 Qf5 Bf2 Qe4 e1R Qg6 Bb7 Kd3 e2+ B4e3 Rc1 Qe4 Bg6 Kc4 e1Q Kb5 Bf7 Qec2 Qd5+ Bc5 Qa2 Bd4 Be3 Bc5 Bh6 Bg1 Nd4+ Ka5 Nb3+ Kb5 Ba6+ Kc6 Bd4 Kc7 Bf8 Qcb1 Bdg7 Qf5 Nd4 Qfc2 Qd6+ Kd8 Be5 Qcc7 Qde6 Qc8 Qe7+
Q7/1r2pQPp/q1P3nN/k1n1Nnqn/4q3/5R1P/Kb1rNn2/2b2R1N w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 d5 b5 d3 b6 d4 Ne2 Be6 Bh6 Bd5 Ng1 axb6 Bg5 b5 Bc1 b4 exd5 f6 f4 Ra5 f5 Ra8 Bf4 Nd7 Be5 Nb8 Be2 fxe5 f6 g6 Bg4 Ra5 Bc8 Ra8 Bf5 gxf5 Kd2 Kd7 Kc1 Kc7 Kb2 Kb6 c4 e4 a4 f4 g4 d2 g5 e3 f7 e2 c5+ Ka5 g6 e1B d6 b5 h3 f3 d7 f2 c6 f1Q Qg4 d1N+ Kb3 d3 Ka2 b3+ Ka3 d2 Qc4 b2 Qd4 b4+ Kb3 Ra7 Nc3 b1N Qd3 Nf2 Kb2 d1N+ Kb3 Nd2+ Ka2 b3+ Ka3 b2 Nce2 b1Q Qf3 Bh6 f8N Ne3 g7 Nde4 Ng6 Rb7 Ne5 Bc3 Qf7 Ngf6 Ng3 Nc5 N1e2 Qe4 Ka2 Nh5 Rg1 Qc1 Nh1 Qb6 d8N Nbd7 Rg3 Nf8 Rf3 Nf5 Rb1 Qg5 Rf1 Ka6 a5 Ng6 Rd3 Bb2 Rf3 Kb5 a6 Ka5 a7 Qa6 a8Q Rf8 Qe8 Rf6 Ndf7 Rd6 Qg8 Rd2 Qgf8 Qg3 Qfe8 Be3 Nh6 Qg5 Qf8 Rd1 Qf6 Bec1 Qf7 Rd2
7n/2N2RR1/r1b2b2/2QQ2bn/KP5k/3PqPp1/N1p2q2/bqRn2Rr w - - 0 1 illegal: No possible last move
qQ5r/1Qp2Kb1/n1qR4/1qpnkPRR/1N4n1/3b2PP/1N1r3r/q6R w - - 0 1 legal: proof: e4 b5 c4 g5 a4 f5 axb5 fxe4 f4 d6 c5 dxc5 b3 h6 f5 h5 g3 h4 Bg2 h3 Bb2 hxg2 Be5 Qd7 Bd6 Qd8 Bf4 gxf4 h3 Kd7 Ke2 Kd6 d4 a5 b4 e5 d5 a4 b6 e3 Kd3 a3 Kc4 f3 b5 e4 b7 f2 b6 f1N Nd2 e2 Qb3 e1Q Ndf3 e3 Ne2 g1R Nc3 a2 Ne5 e2 Nd1 Rg2 Nc6 Qa5 Qb5 e1Q Nb4 Ke5 d6 Qe3 d7 Nh6 Qa6 Qe8 d8R Qea3 Rd7 Rb2 Rg7 Rh2 Rg5 Bg7 Rb1 a1Q Qb5 Kf6 Kd5 Ng4 Rb2 Bd7 Rd2 Q5a4 Qa6 Bb5 Rd4 Bd3 Rh5 Ne5 Rg4 Qa5 Rgg5 Qab5 Qa7 Ng4 Qa6 Nd7 b8R Qg6 Rd8 Nb8 Qc8 Ra6 b7 Re6 Na6 Ree2 Nb2 Rd2 Nb4 Qa8 Rd7 Na6 Rd8 Qa7 b8Q Qa8+ Qcb7 Qc4+ Kc6 Nfe3 Kd7 Ke5 Ke7 Qc6 Rd6 Q4b5 Kf7 Nd5
2qR4/4r3/2QKb1k1/N1q1rpN1/1bp2Q2/3P3P/1p1Qb1P1/1rnRqn1Q w - - 0 1 illegal: No possible last move, all moves rejected
Q2b3r/n3q1n1/NPBp3n/1pp1P1B1/2Q3bq/5n1r/Pk2B1N1/1B2K1n1 w - - 0 1 illegal: No possible last move
1b4n1/rB2pK1Q/Pr3pq1/Nk2q2Q/1B2nN2/br4q1/1pP1rP2/1B4B1 w - - 0 1 legal: proof: d4 d5 b4 c5 e4 a5 h4 axb4 a3 g5 h5 Be6 Qe2 cxd4 Qd1 d3 Nc3 d4 Nb1 Bd5 exd5 Ra5 Bb2 Ra6 Bc1 Ra8 g4 h6 a4 Qa5 Rh4 Qc7 Ra3 Qd8 Rc3 Ra7 Rc6 Ra8 Rf6 Ra5 Rf5 gxh4 g5 Ra7 g6 Ra8 Rg5 hxg5 Kd2 Kd7 h6 b5 a5 f6 a6 h3 g7 b3 h7 b4 d6 Kc6 d7 h2 Nf3 h1Q Nc3 b2 Bg2 b1R Na4 g4 Ng1+ Kb5 Qe2 g3 Bh3 g2 Qe3 b3 Qe4 Qe8 d8B Qh2 Nb6 Ra7 Qh4 Qe5 Ne2 g1B Qe4 Bh2 Ba3 Nd7 Nf4 Qg6 Nc4 Nc5 Na5 Re1 Bc8 Re2+ Kd1 d2 Bb4 b2 Bb7 Qg3 Qf5 Ne4 Bc7 Qg6 Nd5 Bf4 Qh5 Be3 Bb8 Qeg3 B8d6 Bf4 Bc7 Bd6 Bb8 Qe5 Nf4 Bc5 Bc3 Ba3 Bb4 Re3 B8d6 Rb3 Ke2 d3+ Ke3 d1Q Bb8 Qdg1 Bc7 Qeg5 Kd4 d2 Be5 Q1g4 Kd5 Qg3 Ke6 d1R Bed6 Rd2 Bc7 Nh6 g8B Re2 Bf7 Rg8 h8Q Bg7 Qh7 Qe5+ Kd7 Bf8 Ke8 Rh8 Bcd6 Ng8 Bb8 Bh6 B8d6 Bg5 Kf8 Rc3 Ba2 Rce3 Bb1 Rb3 Ne6 Be3 Nf4 Bc5 Bb8 Bd6 Bc7 Q6g5 Kf7 Qh6 Bb6 Bb8 Bc7 Qhg6+ Kf8 Qc5 Q7h6 Qg1 Nd5 Qc3 Bh2 Bg3 Qh7 Nh6+ Qg8 Bc7 Nf4+ Qe5 Ba8 Q1g3 Bg1 Qg7+ Ke8 Q7g5 Kd7 Qg6 Qh7 Rb8 Bd5 Rb6 Bb7 Bb8 Kd8 Qgf5 Ke8 Ng8 Kf7 Qfg6+
N1nr2B1/3n4/3p1n2/1p1b2pP/kP1QN3/2Bn1qb1/1P1q1Q1N/2qN2Kn w - - 0 1 legal: proof: f4 a5 d4 e5 a3 exf4 d5 g5 d6 cxd6 Qd3 d5 Qf5 d4 Qd3 Ra6 Qd2 Rb6 Qd1 Rb4 axb4 b5 g3 h6 Ra3 g4 Rf3 gxf3 g4 Ba6 Na3 Bb7 Nb1 Bc8 h4 Qc7 g5 Rh7 g6 Qd8 Rh2 Rh8 Rg2 Be7 Rg3 Bf8 Rg5 hxg5 Kf2 f5 e4 d3 c4 a4 g7 a3 c5 a2 e5 a1Q c6 d2 h5 Ne7 g8Q Bb7 e6 Nc8 c7 Bd5 Qb3 d1N+ Ke1 f2+ Ke2 f3+ Kd2 f4 Bh3 f1Q e7 f2 Bg4 f3 Qa4 Qg2 Be6 f1N+ Ke1 f2+ Ke2 Nfe3 Bf5 Ng4 Nc3 Nf6 Qg7 Qf3+ Kf1 Rg8 Be3 Qc1 Qa7 Rh8 Bb6 Rg8 Qh8 Kf7 e8N Bd6 Bd4 Bg3 Bh7 Ke6 Nd6 Re8 Nde4 Rg8 Bb6 Rf8 Bg8+ Ke5 Nc5 Kd4 N5e4+ Kc4 Bd4 Kb3 Qb6 d6 Qg7 Nbd7 Be5 Qff4 Nf3 Qfd2 Nh2 Qe8 Kg2 f1N+ Kg1 Nf2 Nd1 Ka4 Bc3 Nd3 Qf2 Qe6 Qh8 Qg4 Qg7 Qf3 Qh8 Ne7 c8N Rd8 Qg7 Bh4 Qh8 Ng3 Qg7 Nh1 Nb6+ Kb3 Qh8 Bg3 Na8 Nc8 Qg7 Ka4 Qh8 Ng4 Qhd4 Ngf6
2kb4/6Q1/bR1pb1NP/P4r2/3QbQ2/pnp1nnQ1/K1P1nN2/q1R2b2 w - - 0 1 illegal: No possible last move
NN6/p1rKnpb1/P4q1N/pNb5/1RP2qRQ/Q1q1k3/1n1pP3/2b3r1 w - - 0 1 legal: proof: d4 e5 f4 exf4 g4 c5 a4 cxd4 h4 b6 a5 Na6 h5 Bc5 h6 Bd6 Bd2 Bb7 Bh3 Nb8 a6 Bf8 Ba5 bxa5 Bg2 Bd5 Be4 Be6 Bd3 Bf5 Be4 Bg6 Bf5 Bh5 Bg6 hxg6 gxh5 Qh4+ Kf1 Qe7 Ke1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 c4 d5 b4 g5 h7 g4 h6 g5 Qe1 d3 Rh5 d4 Rh1 d2 Qd1 d3 Ra2 g3 Rb2 g2 Rh3 g4 Rf3 g3 Qa4 d1Q Qa3 Nd7 Kc6 Qc1 b5 Nc5 b6 Qc3 b7 Na4 b8N Bg7 Rb4 Qdf6+ Kd7 Ne7 Nh3 Rg8 h8N g1B h7 g2 Ng6 Bc5 h8Q g1B Nf8 Bge3 Ne6 Nb2 Nc7 Bc1 Rg3 f3 Qh4+ Ke3 Rg4 d2 Nf2 Rc8 Qa2 Rg8 Na3 Rc8 Nab5 Qf4 Nd3 f2 Qa3 f1Q Nf2 Qf6 Nc6 Rab8 Na8 Rb6 Nb8 Qf4 Ne4 Rg6 Nf6 Rc6 Ng8 Rc7+ Ke8 Rg5 Nh6 Qf6 Rd4 Rg2 Rg4 Rg1 Kd8 Q1f4 Ke8 Rc8+ Kd7 Rc7+
N3k1r1/p2qB1q1/5np1/1KPr1b2/1Q2pQNN/2p5/1bNp1BPP/4q2n w - - 0 1 illegal: No proof kernel
1n2r3/q2qQ1p1/b1p2pk1/qbR2r2/1R3PP1/1P4qN/1b2n2K/1NRR1Qn1 w - - 0 1 legal: proof: d4 d5 c4 dxc4 a4 e5 a5 h5 d5 h4 a6 h3 g3 bxa6 Bh6 a5 Bg2 hxg2 Be3 a4 Bd4 exd4 e4 a5 h4 a3 f4 a4 Kf2 c3 h5 c6 h6 d3 b3 a2 d6 f6 g4 Kf7 Kg3 d2 d7 a3 h7 c2 e5 c1Q e6+ Kg6 e7 Nh6 e8R Qc3+ Re3 Ba6 Qc2+ Nf5+ Kh2 d1B Qe4 Bde2 Qc4 Ng3 Nf3 g1N Qb4 Beb5 Qe7 N3e2 Re5 Qe8 d8Q Qd7 Ng5 Rg8 h8R Ra7 Kg2 Qg3+ Kf1 Ra8 Nh3 Ra7 Rc5 Ra8 Qe3 Be7 Qd4 Re8 Qf2 Bd6 Rf8 Be5 Qe7 Bd4 Rh8 Bb2 Rhh5 Ra7 Rc4 Rb7 Rb4 Ra7 Rc5 Rb7 Nc3 Ra7 Rc1 a1Q Qg2 a2 Nb1 Ra8 Qf8 Re5 Qe7 Rf5 Qf3 Ba3 Qd3 Qc3 Qf3 a1Q Qf2 Bb2 Qe1 Qge3 Kg2 Qa5 Qf1 Qed4 Kh2 Qf3 Re5 Q4a7 Rec5 Qe3 Qd1 Nf3+ Kg2 Qc3 Re1 Nfg1 Kh2 Qg3+ Kh1 Qd6 Rf1 Nd7 Qe1 Rc8 Qf2 Re8 Rfd1 Nb8 Qf1 Qh4 Kg2 Qdd7 Kh2 Qg3+
4N1NN/bQp5/1n3p1r/1rBb1B1n/k3q3/1qqrNPp1/b1P2KP1/2Qb4 w - - 1 3 legal: proof: b4 g5 e4 a5 h4 axb4 a4 d5 f3 dxe4 Ra3 h5 Re3 g4 Rh3 Ra5 Re2 Ra8 Rf2 g3 Ke2 gxf2 Rg3 Qd6 Rg6 Qd8 Rg4 hxg4 d4 Kd7 d5 e5 d6 Kc6 h5 b5 d7 b3 a5 b4 h6 Kb5 a6 b2 h7 e3 a7 b3 Qd5+ Ka4 Qd1 e4 Nd2 b1B Nh3 b2 Ng1 Ba2 Qe1 b1R Ba3 Nf6 Be7 Nh5 Nh3 f6 Ng1 Bb7 Nc4 Rb5 Bb4 Bc5 Qb1 Qg8 d8N Bd5 Qc1 Nd7 Nc6 Rd8 a8Q+ Ba7 Be7 Nb6 Bc5 Qe6 Nh3 Rd6 Kd1 e2+ Kd2 Rdd8 Ke3 e1Q+ Be2 f1B Nf2 Qa5 Nd6 Qc3+ Bd3 Be2 Qb7 Bd1 Ne7 Qb3 Ng8 Qe5 Nh3 Qec3 Nf4 Rd7 Kf2 e3+ Kf1 e2+ Kf2 Rd8 Ne8 Rd6 Ng6 Rd7 N6e7 Rd8 Nf5 Rd6 Ne3 Rd8 Nf1 e1Q+ Kg1 Rd7 Bf5 Qe4 Ne3 Bf7 Kf1 Rd3 Kf2 Bd5 Ne7 Rg8 h8N Rg6 Ng8 Rh6 Bc8 Qbc4 Bd7 Q4b3 Bf5 g3+
R5q1/N4NQb/2pN2np/4p3/1kqq1r1Q/2r3n1/P1P2b1P/R1Kqb1Nn w - - 0 1 legal: proof: f4 d5 b4 a5 e4 axb4 f5 dxe4 Qh5 e3 Bb2 g6 Be5 f6 Qd1 fxe5 f6 e4 Be2 Be6 Bg4 Bc8 Bf5 gxf5 g4 Kd7 d4 Kc6 d5+ Kc5 f7 b5 g5 e5 g6 c6 g7 f4 d6 b3 d7 e2 Kd2 e1Q+ Kc1 h6 Nd2 f3 Rb1 b4 Ra1 e3 Ne2 f2 Rf1 Na6 Nb1 Ne7 g8N Ng6 Rh1 f1N Rg1 Qf2 Kb2 Ng3 Na3 Nh1 Nc3 e2 Kb1 e1B Qh5 Qd4 Rg4 Qg5 d8N Bf5 Nf6 Be7 Re4 Rf8 Qd1 Qf4 Nh5 B7h4 Re2 Bhf2 Re4 Qc4 Re2 Qfd4 Kc1 Ra7 Nf6 Rd7 Qd3 b2+ Kd1 b3 Nfe4+ Kb4 Re3 Rd5 Nab5 Nc5 Ned6 Ne4 Ne2 Rc5 Na7 Neg3 Ng1 Be4 Re2 Bf5 Rd2 Be4 Qe3 Bf5 Rd3 b1Q+ Qc1 Qbb2 Qf4 Qdd5 Qh4 Qbd4 Rd2 b2 Rd3 Qa6 Rd2 Rc3 Rd3 Qac4 Rd2 Rh8 f8Q Qg8 Qg7 Bd3 N8f7 Be4 Rc1 b1Q Rd3 Nf4 Rd2 Bh7 Rd3 Ng6 Rd2 Qbb3 Ra1 Qd8 Kc1 Rf8 Nh8 Rf4 Nhf7 Qe4 Rd5 Qed4 Ra5 Qg8 Nac8 Qcd3 Ra8 Qbc4 Na7 Qd1+
rqrb2q1/p2B2q1/2n1B2p/PQ1n1Qpb/1pRR2P1/1r3B1B/KP5k/2n5 w - - 1 3 illegal: Other
2b3Q1/1rn1pq1q/3PN3/1N3Q2/2Bq2br/b1p1PB1k/KpPpB2n/1q4B1 w - - 0 1 illegal: No proof kernel
1Bn1k1r1/Qn5p/2K3r1/6Pn/pp3b2/3QNq1P/1PN1pqqQ/1B1n1bQ1 w - - 0 1 illegal: No possible last move
1b1Q2K1/1Nn1Q1p1/P3q3/3Pr2b/4PQ2/2n1Q3/Q2nnr1n/brR3Nk w - - 0 1 legal: proof: g4 d5 c4 f5 d4 h5 gxh5 a5 a4 f4 Kd2 f3 e3 e6 Be2 fxe2 Ra3 e5 b4 axb4 Bb2 bxa3 cxd5 Ra5 d6 Ra6 d5 Ra8 Bd4 exd4 Kd3 Kf7 Kc4 Kf6 f4 Kf5 h4 Kg4 d7 Kg3 a5 Kg2 h6 e1R f5 b5+ Kb3 c5 h5 c4+ Kc2 b4 e4 c3 Kd3 a2 h7 a1B h6 b3 f6 b2 f7 c2 Na3 b1N Nf3 Qe7 Nc4 Nf6 Nd6 Ng4 Qc1 Na6 Qe3 c1N+ Kc4 d3 d8Q Rg8 h8Q d2 h7 d1N Qd7 Qf6 Nb7 Bd6 f8Q Ndc3 Qc7 Qg6 Qff4 Re8 Kd4 Nh2 Rf1 Bg4 Ng1 Kh1 Qd7 Be7 Ke5 Qc6 Qg8 Bd1 h8Q Bd6+ Kf5 Re5+ Kg6 Bh5+ Kh7 Bc7 Qge8 Qe6 Qa4 Bb8 Qe7 Nc7 Qhd8 Ra6 Qc2 Re2 Qa4 Rb6 a6 Rf2 Qa2 N1e2 Rc1 Nd2 Kh8 Rb1 Kh7 Qh6+ Kg8 Qe6+
R2nBn1k/q1rRq1R1/b1p3Q1/5Pp1/2PrR1P1/qR2K3/3p4/1qnQq3 w - - 0 1 legal: proof: d4 h5 b4 a5 d5 e6 Bh6 Bc5 d6 h4 Bg5 axb4 Bc1 c6 Bf4 Bb6 Bc1 Bc7 dxc7 Qf6 Bd2 Qe7 Bc1 Qd8 e4 f6 g4 e5 Bb2 Ra6 Nd2 Ra8 Bd4 exd4 e5 f5 Ne4 fxe4 Ne2 Ne7 Ng3 hxg3 Rb1 Ng8 Rc1 Nh6 Ra1 Ng8 Kd2 Kf7 h4 b5 f4 g5 a4 Kg7 c4 d5 h5 e3+ Ke2 d3+ Kf3 d4 e6 e2 e7 e1Q e8R b3 f5 b4 a5 g2 a6 g1N+ Kg2 b2 a7 b1Q Qe2 b3 Ra6 d2 Ra3 d1Q Re3 b2 Rab3 d3 Rh2 d2 Re4 Rh7 h6+ Kh8 Rh4 Bb7 c8Q Rc7 h7 Qbd3 Qe6 b1Q Qg6 Nh6 Rh2 Qdc1 Qd1 Ne2 Rh3 Qdc3 Rd3 Qa3 Kf3 Qca5 Bg2 Nc1 Rd7 Ba6 Rg7 Nd7 Bh1 Rac8 a8R Nf7 Ra7 Qh4 Ke3 Nf8 Bg2 Rd7 Bf3 Rd4 Rd7 Q5a4 Ra7 Bb7 Rf4 Qad6 Bd5 Qda3 Re4 Qh1 Ra8 Rc7 Be6 Qe8 Bd7 Nd8 Rf7 Qa7 Rfe7 Qf7 Be8 Ba6 Rd7 Qf1 Qe6 Kg7 h8R Qfe7 Rg8+ Kh7 Rg7+ Kh8 Qg6 Qe1+
1k1rB3/4pn2/3pr3/1p1Q1n2/QPR1b3/1rPp2RR/P4b1R/1Rbq1r1K w - - 0 1 illegal: No possible last move
2q1Q3/2p2pq1/P3bP1Q/3r1r2/Qbn5/2qp3p/Q1Pb1kBN/2bKN2Q w - - 0 1 illegal: No proof kernel
5n1b/nQ5P/qBnbkrBn/4q3/1R5Q/3PP1b1/1bK3n1/Q2r1B1B w - - 0 1 legal: proof: c4 d5 b4 e5 a4 b5 Ra2 e4 axb5 dxc4 d3 Qh4 Kd2 e3+ Kc3 Qg5 Rd2 exd2 Kc2 Qd8 g4 g5 f3 h6 Nh3 Qd7 Kc3 Bb7 Nf4 Qe7 Kd4 Qd8+ Ke3 Be4 Nc3 Bf5 Kf2 gxf4 Ne4 Bg6 Ng5 Be4 fxe4 Ne7 Nh7 Ng8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Qa4 Kd7 Qd1 Ke8 h4 Kd7 h5 f5 e5 c5 b6 a5 h6 a4 h7 c3 g6 f3 Ke3 f2 b7 a3 b5 c2 b6 c4 g7 g3 Bh3 f1N+ Kd4 c3 Kc4 g2 Kb3 g1N Rh2 a2 Ba3 c1B Qc2 a1B Qb1 d1N Qa2 c2 Bg2 f4 Bc5 f3 Qa4+ Nc6 b8Q f2 b7 Ke6 Bf3 Bd6 Bb6 Bcb2 Be3 c1B Qf4 Qa5 Rg2 Qa6 Kc2 Nc3 Ba7 Nb5 Rg4 Nh3 Bb6 Nh6 Bh1 Ng5 Qa7 Rhf8 b8Q Rf6 Qbb7 Rg8 Qh2 Bf4 Qh4 Bg3 Rb4 Rgf8 Qaa8 Nba7 g8B+ R8f7 Bg2 Ne3+ Kb3 Kf5 e6 f1Q e7 Ke6 e8B Qe1 Bf1 Ng2 Kc2 Qc3+ Kd1 Qe5 e3 Nh3 Kc2 Nhf4 Re4 Ng6 Rb4 Nb8 Bc6 Nf8 Be4 Nbc6 Bf3 Kf5 Bd5 Rg7 Bgf7 Rg5 Bf3 Rh5 Bg6+ Ke6 Qg5 Rh1 Qh4 Nf4 B3g2 Rg1 Bh1 Ng2 Be2 Rb1 Bf1 Rd1 Qe8+ Ne7 Qa4 Nec6 Qa5 Bc3 Qa4 Bab2 Qa1 Rf3 Rd4 Qf4 Rd5 Bh8 Rd4 Qe5 Rb4 Rf6
1Qrk4/r1qP4/1P2QP2/b3B3/Knrqb1Bq/n2q1p1Q/1B2Q2n/5N2 w - - 0 1 legal: proof: c4 a5 b4 g5 h4 gxh4 a4 b5 axb5 d5 cxd5 Kd7 b6 Nf6 b5 Ke8 Ra4 Ng8 Rf4 Nd7 Rb4 Nb8 g4 axb4 f4 e5 f5 Qe7 Rh2 Qd7 Rf2 Qd8 Rf4 exf4 e4 f6 e5 Kd7 e6+ Ke8 Na3 Qd7 Nc4 Qd8 Ne5 fxe5 d4 h5 Kd2 c5 Kc2 c4 g5 c3 Kb3 f3 f6 e4 b7 h3 b6 e3 d6 h4 d5 h2 g6 h1R e7 c2 g7 h3 Bd2 c1Q Be2 h2 Bc3 Ra7 Bb2 Nc6 b8Q Bf5 Qf1 Nh6 g8Q Ng4 Bd1 e2 Qe6 e1Q Qee2 Qf2 Qb5 Be4 Bc2 Qd4 Qbe2 Bh6 Bd3 Bd2 Qh3 Qb1 Ba6 Qbd3+ Ka4 b3+ Ka3 Rc7 Bc8 Nb4 Ka4 Rc4 Bf5 Bc3 Bc8 Qc7 d7+ Kf7 d8B Ke8 d6 Rf8 Bc1 b2 Bf5 b1N Bb2 Na3 Bc8 Ba8 Qe6 Rh8 Ne2 Ra1 Ng3 h1Q Nf1 Nh2 Qe2 Be4 Bg4 Qc8 Bc7 Rg8 Ng3 Qe1 Nf1 Qh4 Qa8 Bd2 Qd5 Be1 Qe6 Qd8 Bb8 Qc7 Bc1 Qc6+ Ka5 Nac2+ Ba3 Qb7 Qe5 Nc6+ Kb5 Bd2 Bb2 Ra7 Bc7 Ba5 Qf5 N6b4 Ka4 Rf8 Qc8+ Kf7 Qb8 Na3 e8Q+ Kg8 Qe5 Rc8 Qe6+ Kf8 Bd8 Qg7 Be7+ Ke8 Bf8+ Qe7 d7+ Kd8 Bh6 Qed6 Bf4 Q6c5 Be5 Qc7
b1qr2Q1/kn4nK/1r2P1R1/P1b2pPn/Qn3p2/1r1R1BQ1/4Q3/3n2R1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 c4 d5 cxd5 Bd7 b4 axb4 f5 Be6 Bb2 Bc8 Na3 Qd6 Nb5 Qc6 Bd4 Qe6 Be3 Qf6 Nd4 Qd8 Bf4 exf4 Ne6 fxe6 f6 Ra7 Nf3 Ra6 Ng1 Ra8 Nf3 Ra3 Nd4 Ra8 Nf5 exf5 Kf2 Kd7 Kf3 c5 d4 Kc7 g4 Kb6 a4 h5 e4 b3 d6 h4 a5+ Ka7 f7 b5 d7 h3 e5 b2 g6 b1R g5 b4 d5 b3 g7 b2 e6 h2 d6 c4 Ra4 c3 Bb5 c2 Rg1 h1N Rd4 c1N Qe2 Rh3+ Kg2 Rb3 Rd3 Na6 Kh3 Nf6 Kh4 Nb4 g8R Nh5 Bc6 Bb7 Rg6 N1g3 Bf3 Qc8 d8Q Ng7 d7 N3h5 Qe8 Bc5 f8Q Rb8 d8Q Ba8 Qa4 Rb6 Rd5 Ncd3 Qg8 Rd1 Qf6 b1N Qc3 Rd2 Rd6 Rd1 Qce1 Rd2 Qg3 Nc3 Rd4 Nd1 Rd8 N3f2 Rd3 Ne4 Rc3 Rd8 Re3 Nhf6 Rd3 Nfd5 Qae8 Nd6 Qa4 Nge8 Kh5 Nb7 Kh6 Ng7 Kh7 Nf6+ Kh8 Nfh5 Kh7 Rb2 Ra3 Rb1 Rd3 Rb3
b1Qq2Q1/rNp5/3qb2K/2Qp1kn1/RrbP1brP/2R1Q1P1/8/R2n2b1 w - - 0 1 legal: proof: c4 b5 e4 g6 b4 bxc4 e5 a5 b5 f6 exf6 Kf7 Ba3 Ke6 Bb4 axb4 f7 Kd6 f4 Ke6 f5+ Ke5 f6 Kd6 Na3 h5 g3 h4 Bg2 h3 Nc2 hxg2 Ne3 Ke5 Nf5 gxf5 Nh3 Ke6 Ng1 Kd6 Kf2 Ke5 Kf3 b3 a4 c3 h4 f4 Kg4 b2 Kg5 b1B d3 f3 b6 f2 a5 f1B a6 c2 a7 c1Q+ Kg6 Bh6 f8R Bf4 b7 Nh6 f7 Qc6+ Kg7 Ng4 d4+ Kf5 Qf3 e5 Qe2 e4 Qf2 e3 Ra6 e2 Nh3 g1B Ra1 e1R Qd2 Be4 Nf2 Bc4 Qe3 Rb1 Nd3 Na6 b8Q Qd6 Nc5 Nf2 Nb7 Rb4 Ra4 Nc5 Re8 Nd1 f8Q+ Kg4 Qg8 Kf5 Re6 Rh5 Rg6 Rg5 Kh6 Bed5 Re6 Ne4 Rg6 Q6e7 Rc6 d6 Rc5 Be6 Qc8 Qed7 Qe8 Q7e7 Qb5 Qed7 Rc6 Q7e7 Qc5 Rg4+ Kh5 Ng5 Kh6 Rb8 a8Q Qed7 Qaa7 Ra8 Qab8 Ra7 Qa8 Q8e7 Qg8 Qdd8 Qc8 Qed7 Rca6 Q7e7 Ra3 Qed7 R6a4 Qc6 Rc3 Qcd7 Qb6 Bc6 Qc5+ d5 Na5 Ba8 Nb7 Bh2 Rf1 Bg1 Re1 Qd6 Rf1 Nf2 Rfa1 Nd1
2Qn3q/3br3/Q1P1PqQ1/3k1p1N/5P2/3b2qp/r1BrN1Nn/K2Nb1r1 w - - 0 1 legal: proof: b4 c5 a4 e5 d4 exd4 Ra2 b5 Ra3 c4 Rd3 cxd3 axb5 Qb6 Na3 Qc7 Nb1 Qd8 h4 g5 g4 h6 h5 Bg7 Rh4 gxh4 g5 Bf8 g6 Qc7 Bf4 Qd8 Bg5 hxg5 Kd2 Ke7 Kc1 Kd6 Kb2 f5 c4 a5 e4 g4 f4 a4 h6 a3+ Ka2 h3 h7 g3 b6 d2 g7 g2 b5 d3 b7 Nf6 g8N Ra7 b6 Ng4 Nh6 Qf6 Qb3 d1B Qb5 d2 Be2 Nh2 Ng8 Nc6 Bd3 Nd8 Qa4 Bc2 Ne2 g1Q Qa6 d1R Nbc3 Rd2 Nd1 Qg3 b8Q+ Kc6 e5 d5 e6 d4 c5 Kd5 c6 Re7 b7 Bd7 Ka1 a2 Qc7 Bb1 Bc2 d3+ Nd4 Bg7 b8Q Bf8 Qcc8 Bg7 Ba4 Rb2 Qba7 d2 Ne2 Bd3 Qg1 Bf8 Bc2 Bg7 Nh6 Rg8 h8N Bf8 Ng4 Rgg7 Ndf2 Rg5 Ng6 d1R+ Nc1 Bg7 Nh4 Rd2 Ng2 Bf8 Nd1 Qh8 Ba4 Bg7 Ne2 Bc3 Nf6+ Kd6 Nf2 Qe3 Bd1 Rdc2 Nh4 Be1 Qg2 Rb5 Qg1 Rd2 Bc2 Rgg7 Nh5 Kd5 Qg5 Rg8+ Qf6 Rg1 Nd1 Qg3 Ng2 Rb8 Qb6 Rb7 Kb2 a1Q+ Kb3 Rh7 Qg6 Qaf6 Ka2 Re7 Qa6 Rb2+ Ka1 Ra2+
1RB5/n1krPPK1/6p1/3Rb1nR/1pq1p3/1qqq2Pb/2R1Qr2/1QnQ4 w - - 0 1 legal: proof: c4 h5 b4 d5 cxd5 a5 g3 axb4 Na3 h4 Nc2 h3 Ne3 Kd7 Ng2 Ke8 e4 hxg2 d4 e5 d6 Bh3 d5 Bc8 Be3 f6 Bd4 exd4 Nf3 f5 e5 Qg5 Nd2 Qd8 Ne4 fxe4 Ke2 Kd7 f4 g1Q a4 b5 h4 c5 f5 b3 f6 b2 e6+ Ke8 e7 Kd7 f7 b1Q h5 b4 a5 c4 a6 g6 a7 c3 h6 c2 h7 Qb3 Rh5 Nf6 Qb1 Bg7 Ra2 c1N+ Kd2 d3 Rc2 Rg8 h8R Qd4 Be2 Qdc4 Ke3 d2+ Kf4 d1Q Kg5 Qcc3 Ba6 Nc6 Bb7 Rb8 a8Q Qbc4 Qaa2 Na7 Qa6 Rf8 Rg8 Bh8 Kh6 Nh7 Qaa2 Be5 Qab2 Nf6 Kg7 Qdd3 Ba6 Rb6 Bb7 Q4b3 Q2a2 Qdd4 Qa6 Qdc7 Qe2 Rd8 Ba6 Qdd3 Rf8 Bb7 Re8 Kc8 d7+ Kb8 d6 Q7c4 Rg8 Bd5 Rf8 Be6 Bc8 Bh3 Rg8 Rf8 d8Q Nh7+ Kh6 Rc6 d7 Rf6 Kg7 Re8 Qa5 Rd8 Qd5 Kc7 Rf8 Qf3 Qdd1 Ng5 Rg8 Qfd3 Rgh8 Re8 d8R Rf8 Rd5 Rd8 Bg4 Rd7 Rb8 Rd8 Bc8 Rdd6 Qed2 Rd7 Q2e2 Rf2+
b2K2k1/1B2PqN1/1P4n1/r1B1pn2/1B4rB/1Pr4N/2b3B1/1brqbN2 w - - 0 1 legal: proof: c4 a5 h4 g5 a4 gxh4 b3 d5 cxd5 b5 axb5 a4 Qc2 a3 Qc3 Nd7 Qb2 Nb8 d4 axb2 e4 e5 g4 f6 d6 Kf7 d5 Bb7 Ra4 Ke8 Rd4 Bc8 Rh3 Qe7 Re3 exd4 e5 Qd7 e6 Qd8 Re5 fxe5 Kd2 c5 Kd3 h5 Kc4 d3 f4 h3 g5 h2 f5 h1R b6 d2 Kb5 d1Q g6 h4 f6 c4 g7 h3 Bg5 c3 Bh4 c2 Bg2 c1R Nd2 b1B Nf1 h2 Nh3 Ne7 g8B Rc3 Bf2 Bc2 Bc5 Ng6 Bb4 Be7 d7+ Kf8 f7 Qc7 d8B Nc6 d6 Bh4 d7+ Nce7 Bh7 Kg7 f8N Nf5 Bde7 Ra4 d8B Rg8 Bec5 Qf7 Kc6 Be1 Bh4 Ra5 e7 Rg1 Kc7 h1B Ne6+ Kh8 Bg3 Ba6 Bh4 Bad3 Kd7 Rc8 Bb7 Rg4 Ng7 Rc7+ Kd8 Bb1 Ba6 Ba8 Bb7 Rc1 Bd4 R7c3 Bdc5 Qf6 Bg8 Bdc2+ Bgd5 Kh7 Bg1 Qf7 Bgc5 Nd6 Bf3 Kg8 Bg2 Nf5+
1r4bb/1BBbrn2/5K1q/R2Bpn2/PB2r3/2rkP3/r2r1P2/B2Bb2N w - - 0 1 illegal: No possible last move
2qN4/1rrRBb2/1pqB1b1P/K7/1PBB3p/Bprp4/p3P1nB/3nk3 w - - 0 1 illegal: No possible last move, all moves rejected
1r2nk2/R7/r4B2/RqbpB3/2bPPr2/3R1brq/P2b1p2/R1K2R1R w - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 g5 e5 Qd3 e4 bxa5 exd3 c3 Nc6 c4 b4 Nh3 Na7 Ng1 Nb5 cxb5 Bd6 Bb2 Bc5 Bc1 Bf8 e4 f5 Nd2 f4 Bh3 Qe7 Nc4 Qf6 Ne3 Qd8 Bg4 hxg4 Nf3 fxe3 Nh4 g6 f4 Ba6 f5 Bb7 f6 Bc8 Nf5 gxf5 Kd1 c5 h4 d5 a6 d2 h5 f4 g6 c4 h6 b3 g7 f3 a7 b2 h7 b1Q b6 c3 b7 g3 b8R g2 Rb2 Qd7 Rb4 Ba6 Rh3 Bc4 Rh4 Qh3 Rb3 Bc5 Ra3 Qb5 Rb3 g1R+ Kc2 e2 f7+ Ke7 f8R e1R Rf5 Nf6 g8R Ref1 Rg7+ Kf8 Rh6 Rg8 h8B d1B+ Kb1 Rg6 Bg5 c2+ Kc1 Rb8 a8R Rf2 Rga7 Rf1 Re5 Ne8 Rd3 Ra6 Bgf6 Rg3 Rf5 Be2+ Kd2 c1B+ Kc2 Qg2 Rh1 Qh3 Rf4 Bd2 Be5+ Qf5 Bhf6 Qh3 Rf5 Rab6 Ra5 Ra6 Ra7 f2 Rh5 Bf3 Rh4 Re1 Rf1 Re3 Rhh7 Rg4 Rh5 Rf4 Rh4 Qg3 Rh2 Qh3 Rhh1 Bg2 Kd1 Ref3 Kc2 Rg3 Kd1 Bf3+ Kc2 Bdb4 Kc1 Bd2+
1K1qqk2/2N5/1R3PnN/b7/Rr1qP1Rp/2r4r/b1rN2P1/1brNR3 w - - 0 1 illegal: No possible last move, all moves rejected
2bNq3/n5Pn/3nN1b1/2bP2nQ/1P1P1brn/2R2B2/1q3K1R/kr2B2r w - - 0 1 legal: proof: h4 e5 f4 exf4 e4 fxe3 c4 g5 a4 gxh4 a5 d5 cxd5 b6 Ra3 bxa5 Ra1 a4 g4 Kd7 b4 Kd6 g5 Ke5 g6 Kd4 d3 a5 Nh3 c5 Nf2 f5 Bg2 h5 Ba3 f4 Ra2 c4 Qg4 e2 Qg3 c3 Rh2 h3 Rd2 h4 Rd1 c2 Nc3 c1B Nb1 f3 Rh1 h2 Nh3 Nf6 Qc7 Qe8 Qg3 Bc5 Nf2 h3 Qg4+ Bf4 Rf1 h1B Rd2 h2 Qh3 Nc6 Nc3 Na7 Nb1 Nh7 Bc1 a3 Rd1 a4 Qh5 a2 Qf5 a1R Bd2 a3 Qh3 a2 Nc3 Rb1 Nfe4 a1Q Qg3 Qb2 Kf2 e1N Bh3 Ng2 Rde1 Nh4 Ng5 Bg2 Re3 h1N+ Kg1 Rg8 Bg4 Nf2 Be1 Ne4 Rf2 Nd6 Nce4 Bh1 Rh2 f2+ Kf1 Rh8 Bd1 Bf3 Qg1 Bh5 Bf3 Rb8 Qg3 Rb6 g7 Bg6 Qg4 Rc6 Nd2 Kc3 d4+ Kc2 Ke2 f1N Kf2 Ng3 Ne6 Ra6 Nd8 Nge4+ Ke2 Raa1 Qh5 Neg5 Kf2 Rf8 Nb3 Rf7 Be2 Re7 Bf3 Re4 Bd2 Rh1 Be1 Rb1 Rd3 Qa1 Rc3+ Kb2 Ne6 Qa3 Na5 Ka1 Nb7 Qb3 Nbd8 Qb2+ Be2 Bd2 Bd1 Rg4 Bf3 Bf4+
qrr3n1/1RN1qk1r/NP1Q3q/r2q4/3r4/1b1B1P1q/4RPbP/2bKB3 w - - 0 1 legal: proof: e4 b5 a4 bxa4 d4 h5 e5 c5 e6 cxd4 Ne2 Nc6 Na3 Ne5 Ng1 Nf3+ gxf3 fxe6 Nb1 e5 Qd2 e4 Qf4 Rb8 Qf5 Ra8 Qg4 hxg4 b4 g5 c4 d5 b5 a5 b6 e5 c5 d3 c6 a3 c7 a2 Bf4 d4 Bc1 d2+ Kd1 e3 Bb2 g3 Bh3 e4 Nc3 a4 Bg2 e2+ Kc2 d1B+ Kc1 e1R Nb5 d3 Bg7 d2+ Kb2 e3 Rb1 a1R Bh6 g4 Bg7 a3+ Kc3 a2 Rb4 e2 Re4+ Kf7 Be5 Rh7 Bf6 Bh6 Rf4 Bb3 Rb4 d1R Bd4 Qd5 Nh3 Rb8 Bh8 Rd4 Rg1 Bc1 Bf1 g2 Nf4 g3 Nd3 Bh3 c8Q Rd1 Ra4 Re1 Rh1 g1Q Nc5 g2 Qc6 Red1 Qh6 e1Q+ Qd2 Qe3+ Bd3 Qge1 Nc7 g1Q Ra7 Qgf1 N5a6 Bg2 Rb7 Qh6 Bf6 Qee2 Qf4 Qee6 Qd6 Qe7 Bg5 Re1 Bd2 Re5 Be1 Rb1 Nc5 Rb2 N5a6 a1Q Nb4 Qa8 Nba6 Ra2 Rg1 Ra5 Rh1 Ba2 Kc2 Re2+ Kd1 Rc2 Rg1 Bc4 Rh1 Bb3 Rg1 Bh1 Rg5 Qfh3 Re5 Bg2 Re2 Ba2 Ne8 Rcc8 Nec7 Bb3+
N7/1q1bRn1B/3Q2Pk/5r1N/n1p2PK1/rq1PR1P1/1qr3Bn/1q1b3r w - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 c5 axb4 c6 g5 Nc3 g4 Nb1 dxc6 Bd3 c5 Bf1 c4 f3 g3 Bb2 Qd7 Bd4 Kf7 Bf2 gxf2+ Ke2 Bg7 g3 Be5 g4 Bg3 hxg3 Ke8 Qc1 Qd4 Qd1 Qd8 a4 Kf7 a5 Kg6 d3 e5 f4 h5 a6 c5 a7 b5 g5 c3 Ra5 b3 Rh2 c4 Qc2 b4 Nd2 b2 Qb3 b1Q Ra1 c2 Ra5 c1Q Qc3 e3 Kf3 h4 Qa1 b3 Ne2 e4+ Kg2 h3+ Kh1 b2 Nf3 Qd5 Ned4 e2 Nb5 e1R Ra4 e3 Ra5 e2 Qa3 Nd7 Qc5 Qb7 Nc7 Nh6 Qb5 Nf7 Qb3 Nb6 Qb4 Na4 Re5 Bd7 Re3 Rh5 Qd6+ Kh7 Rg2 h2 Nd2 Qc3 g6+ Kh6 Ne4 Qcb3 Nf6 Rf5 Nh5 Rc1 Re7 e1N Re3 Rf8 a8B Nf3 Rg1 Q1a2 Kg2 b1Q Kh3 h1R+ Kg4 Qab2 Bg2 Rc2 Rge1 f1B Re7 Rb8 R1e5 Be2 Re3 Q7b6 Be4 Bd1 Bd5 Ra8 Be6 Ra6 Na8 Qb7 Bd5 Nc3 Be6 Ra3 Bd5 Na4 Be6 N7g5 Bg8 Nf7 Bh7 Nh2+
N1b4K/kqr2q2/rqQ1N2q/2q1bB2/2Pr1P1P/1P2q2n/rB5p/4R2R w - - 0 1 illegal: No possible last move
Q1b2rqN/2B4P/2n2k2/1p1p2r1/1qPP3q/3Rq1N1/Bb1q1PKn/1nR5 w - - 0 1 legal: proof: e4 c5 g4 f5 a4 fxe4 b4 cxb4 g5 b5 g6 hxg6 Qf3 g5 Qe2 a6 axb5 axb5 Qd1 g4 d4 Ra7 h4 Kf7 c4 e5 h5 g5 h6 d5 h7 e3 Bd3 e2 Bf4 b3 Be3 b2 Nh3 e4 Rh2 g3 Na3 g4 Rc1 g2 Bh6 g1Q+ Kd2 g3 Ke3 e1Q+ Kf4 e3 Kf3 g2 Bg5 e2 Rc3 Nc6 Nf4 Nf6 Nb1 Ba3 Ng6 Ng4 Bc2 Rf8 Bf4 Qh4 Rd3 Kf6 Nd2 Rg7 Nf1 Qb4 Bb1 e1Q Qa4 Qc1 Ba2 b1N Bc7 Bb2 Rh1 Nh2+ Ke2 Qcf4 Qa8 Qfg3 Nh8 Rg4 Ne3 Qc1 Nf5 Qcg5 Rc1 g1Q Rcc3 Qg8 Rc1 Qf4 Ng3 Rg5 Rc2 Qgc1 Rcc3 Nf1 Rc2 Qe5+ Kf3 Qcd2 Kg2 Nh2 Rc1 Qee3
B4r1n/1QNp1b1k/2BPR2P/2rK4/bqnn1q2/nN1q3P/2n1pP2/3R4 w - - 0 1 illegal: No possible last move, all moves rejected
1b1NN1Q1/bR6/K7/PP1nrp2/k4rp1/1r1n1P1r/BP4n1/Bnq1R2n w - - 0 1 illegal: Other
2q5/4pb2/1Pn2p1B/q4k2/P1Bn4/R1PP3q/NNn1r2r/KQq1Rbn1 w - - 0 1 illegal: No proof kernel
5b2/4q2p/pPnnKRr1/1nP3Q1/B2r3N/1nN2BqP/1kn4P/1r1R3q w - - 0 1 legal: proof: f4 b5 d4 e5 a4 bxa4 d5 exf4 d6 a3 b3 Bb7 Bb2 axb2 Ra5 cxd6 Rb5 d5 Ra5 d4 Ra1 Be4 Ra6 Bf5 Ra1 Bh3 gxh3 Bc5 Nd2 Be7 Nb1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 e4 d5+ Kd3 f5 c4 g5 c5 f3 b4 g4 b5 f4 b6 f2 Ra3 a6 Be2 f1N Nd2 b1R Qa4 g3 Qb4 f3 Qa4 g2 Qd7 f2 Qa4 Ne3 Rb3 f1N Qd7 Nf6 Ra3 Ne8 Qa7 Nd6 Nb3 Nd2 Na1 Nc6 Rb3 Nc2 Ra3 Nb3 Bf3 Rg8 Ne2 g1Q Nc3 Qg3 Rd1 Rg6 Qg7+ Qf6 Qh6 Rd8 Qe3 Qe7 Ra4 Na3 Nc2 Nab5 Ne1 Rd7 Ng2 Rd8 Nh4 Rd7 Ke2 d3+ Kf1 d2 Ke2 d4 Kd3 Rd8 Ra1 Rd7 Rf1 d1N Qg5+ Nf5 Kc4 d3 Rf2 d2 Rf1 Nf2 Rd1 Nd3 Rf1 d1Q Rf2 Ke6 e5 Qh1 Rf1 Ne1 Rf2 Rb2 Rd1 Rb1 Rf1 Nc2 Rf2 Kf7 e6+ Kg7 Rff1 Nfd6+ Kd5 Rd8 Qh6+ Kf6 Rf2 Qb7 e7 Qa7 e8B Qe7 Ng2 Rd7 Qg7+ Kf5 Nh4+ Kf4 Qf6+ Ke3 Rff1 Nd2 Qg5+ Kd3 Rde1 Nb3 Re6 Nca3 Rd1+ Kc2 Rf6 Rd8 Bd7 Kb2 Be8 Nc2 Bd7 Qg7 Be8 Qc7 Ke6 Qe7+ Kd5 Nba7 Ne4 Nb8 Ba4 Nf5+ Kc4 Nb5 Nc3 Rd2 Bd5 Nc6 Bf3 Rg2 Kd5 Nfd6 Be4 Rf2 Bg2 Rf4 Bf3 Qc7 Ke6 Rd4 Bh5 Qd8 Bf3 Qe7#
4Rb2/2rq3P/2np2N1/Qq2BBPR/bbnN2P1/P2b2n1/pb4K1/4k2b w - - 0 1 illegal: No possible last move, all moves rejected
3q1nq1/p1b1k3/1qP2N1r/PB1qN1PR/B1R1K3/p5Pn/1p1r4/n3Qb2 w - - 0 1 legal: proof: b4 g5 a4 c5 f4 e5 h4 exf4 hxg5 d6 c4 Qa5 Qc2 Qd8 Ba3 cxb4 c5 bxa3 c6 Ke7 Qc1 Ke8 Qc5 dxc5 Kf2 f5 Kf3 b5 d4 h5 e4 c4 e5 b4 d5 h4 g3 c3 d6 c2 d7+ Ke7 e6 c1N a5 h3 Rh2 b3 Bg2 b2 Bh1 Ba6 Ne2 Nb3 Ng1 Nf6 Rd2 h2 Rd1 Bf1 Ra2 Rh6 Bg2 h1Q Nd2 Nd5 Ne4 Na1 Rd4 Bg7 Nc3 Be5 Rc4 Bc7 Ne4 Qg8 Nf6 Qd8 Kf2 f3 Bh3 Nf4 Ke3 f2 Nf3 Qg2 Ne5 Qd5 Bg4 Qg8 Bd1 Nh3 Ba4 Qd8 Ne4 f4+ Kf3 Qd4 Nf6 Qb6 Ke4 f3 Bb5 Be2 Ba4 f1Q Bb5 f2 Ba4 Kd6 e7 Qd1 e8B f1Q Bh5 Ke7 Bg6 Qff2 Bh5 Bf1 Be2 Qg8 Bd3 Qfd2 d8Q+ Ke6 Be2 Nd7 Qe8+ Kd6 Bd3 Rd8 Be2 Nf8 Bd3 Nb3 Ra1 Rd7 Rb1 Na1 Rbc1 Qdb3 R1c2 Qd1 Rh2 Qa2 Rc3 Qae6 Bdb5 Qe7 Rc4 Qd8 Qh5 Ke6 Qe2 Rd2 Qe1 Ke7 Rh1 Nf4 Rh4 Nh3 Rh5 Qb3 Rc1 Qbf7 Rc4 Qfd5+
3k1b1R/PP1p1R1r/1r3P2/Pb3p1K/B3Q3/2NBq1r1/rrpr4/n2N2q1 w - - 0 1 illegal: Other
b4b2/R2NQr2/2n3rB/1nKr1q2/q2PPqN1/2P3q1/bRB1P1r1/1qk3b1 w - - 0 1 illegal: Other
nq5b/1NP1knr1/P4p2/1nbnb2b/2B1P3/P3nK1r/3R3b/r1QNR1B1 w - - 0 1 illegal: Other
Q7/4NnbB/Knbrb3/5r1P/Pq1b1BR1/1kPNqPR1/1pq3n1/6bb w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 a4 Ke6 h4 Kd5 c3 g5 h5 b5 Bb2 e5 Qc1 b3 Rh4 b4 Rh1 g3 Ba3 g2 Bb5 g4 Qe1 e3+ Kd3 g3 Qc1 b2 Ba6 b3 Nf3 g1B Ne1 e4+ Ke2 d3+ Kf1 d2 Ke2 d1B+ Kf1 e2+ Kg2 e3 Kf3 g2 Qc2 Qb6 Rh2 Nh6 Qc1 Nf7 Nc2 e1Q+ Kf4 e2 Kf5 Bg7 Bd3 Rf8 Qh6 Ra6 Rh4 Qb4 Qh8 Rd6 Be4+ Kc4 Kf4 Bb7 Ke3 Bc6 Rg4 Qd2+ Kf3 e1N+ Kg3 Qh6 Nd4 Bf3 Nf5 Qd2 Ne7 Qe3 Rf4 Bg4+ Rf3 Be6 Bh7 Na6 Qg8 Nc7 Qh8 Nd5 Nd2+ Kc5 Qg8 b1Q Bc1 b2 Nc4 Nb6 Ne5 Qc2 Nd3+ Kc4 Bd2 Kb3 Rc1 Qec5 Bf4 Qe3 Qh8 Ne5 Rd1 Rf5 Qa8 Nf7 Kg4 Bh2 Rg3 g1B Rd2 Bh1 Re2 Ng2 f3 Bf2 Ne1 Bhg1 Rd2 Bd5 Rd4 Bc6 Nd3 Rh6 Rc4 d5 Re4 d4 Qd8 Rd5 Qa8 Rdd6 Kf5 Rhe6 Ne5 d3 Rd4 d2+ Nd3 Nh8 Re4 Rf6+ Ke5 d1B Ne1 Rd2 Nd3 Rf5+ Ke6 Qc4+ Kd6 Qb4+ Kc7 Nf7 Kb8 Be2 Ka7 Bd1 Ne5 Rd6 Nd3 Be2 Bh6 Bf1 Reg4 Be2 Bf4 Bf1 Ne5 Bc4 Nd3 Be6 Ka6 Qee4 Bc1 Bfd4 Bf4 Qe3
1K1rr3/1n3b2/1rBN1n2/1bpPQ1R1/2PN1q2/bqnb4/2P1b1P1/k1B1R1b1 w - - 0 1 illegal: Other
n3N3/Qq3P2/1bq3R1/1n2PBrK/1B6/3q1rPb/r1n1P1pk/qq1R2Nq w - - 0 1 illegal: Other
3R1B1q/KP1PPq1q/2b4R/1B4br/r2N1q2/pP1Q1n2/nNq2k1q/nr6 w - - 0 1 illegal: Other
n3n3/nn1N3K/6qN/1bP1q1Q1/Pb1prBBn/PP1R4/R7/1rbrk1b1 w - - 0 1 illegal: Other
3q1K2/2QP1B2/qqR3b1/1nbp1N1n/1r1b3N/1P2Bb1R/Pb3P2/k4rrq w - - 0 1 illegal: No possible last move
2b1rb1B/p3P3/2NPbn2/1r4Nk/B1r1q1q1/2R2n1q/P1bK1PqQ/1R2b3 w - - 0 1 illegal: No possible last move
N3q1B1/1k2P1Pr/1pRb2Nn/2P5/5nbr/b2n1rKQ/1qq3nP/q3BR2 w - - 0 1 illegal: No proof kernel
R1B3K1/qR2Pp2/2n1n2n/2b1bq2/3kNPr1/1qn2r1N/Q1P1brPq/3B4 w - - 0 1 illegal: No possible last move
1B1QN2N/P3Rb2/3b2B1/2rkq1n1/q1n2n2/1p3PRr/bK3PPb/2r3rq w - - 0 1 illegal: Other
r1nbn1QN/B3P3/brbb1NRR/n1rb1q2/3P1n2/4BpP1/3K1Pk1/2b5 w - - 0 1 legal: proof: c4 e5 a4 b5 h4 bxa4 d4 d5 h5 dxc4 h6 e4 e3 gxh6 Rh4 h5 Bd3 exd3 Rh1 h4 b4 Kd7 g3 Ke6 e4 c5 e5 Kf5 b5 Ke4 b6 a5 e6 f5 b7 h5 Ra3 f4 Qg4 c3 Bd2 c4 Qg5 c2 Qb5 c1B Qc5 h3 Ne2 Kf3 Qb5 h4 Rf1 h2 Be3 h1B Qb2 h3 Qb4 c3 Qb5 c2 Qb3 h2 Qb2 Qd7 Qb3 Ne7 Ra2 a3 Bd2 a4 Be3 Na6 b8B Rh6 Qc4 Nc7 Rb2 a2 Bd2 a1N Ba7 a3 Qb4 a2 Qb8 Ne8 Qc7 Ba6 Bc5 Nb3 Qe5 a1B Nec3 Nc8 Qh5+ Kg2 Nd5 Bd6 e7 Na5 Qe5 Qf5 Rb6 Bc3 Qe6 Bb4 Qf7 Bc7 Qh7 Bd8 Rg6 Bba3 Ba7 Bd6 Be3 Rh5 Nc7 Rh6 Nb5 d2+ Ke2 d1N Nd2 Nb2 Ne4 Nd3 Re1 Bca3 Qg8 c1R Rd1 Rc5 Nf6 Bc1 Rg1+ Kh3 Rf1 Bd5 Rh1 Kg2 Kd1 B6c7 Nd6 Bb8 Nf7 Bd6 Rf1 h1B Nh8 Bc6 Qf7 Kh2 Qe6 Bhd5 Rh1+ Kg2 Qg8 f3 Rh3 Rh4 Rh1 Re4 Rhh6 Nf4 Bd2 Re2 Be3 Rb2 Ke1 Rb6 Kd1 Ba3 Kd2 Bc1+
krQ5/P4q2/1b2PN2/n1Bqp1b1/PB1Rq3/4Pn1K/1rRr1r1N/b2q3b w - - 0 1 illegal: Other
qn1n1nqR/2P1K1nP/4qp1R/3P2nr/3b2Q1/Bp3PN1/r3b3/1Nb1kB2 w - - 0 1 legal: proof: g4 c5 e4 a5 b4 h5 e5 hxg4 e6 c4 Ke2 axb4 Ke1 dxe6 Qe2 e5 Qd3 e4 Qb3 cxb3 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 g5 a4 f6 d4 g3 h4 b2 h5 b5+ Kb3 Kd5 h6 g4 a5 e3 c4+ Ke4 d5 e2 c5 Kd3 c6 g2 a6 g3 c7 e4 f3 e3 a7 Ba6 Nd2 b1Q+ Bb2 Ne7 Ne4 Nec6 Nd6 Kd2 Ra5 e1N Ne2 g1Q Rh4 g2 Nb7 Qe4 Rf4 Nd3 Rh4 Nc5+ Ka2 b3+ Ka3 Ne6+ Nd6 b4+ Ka4 Ng7 Nc1 e2 Nf5 e1N Bb5 Nc2 Rh3 Ke1 Rh2 N2d4 Bc4 Qe6 Bf1 Be2 Ba3 b2 Ng3 b1N Rh5 b3 Na2 Nd2 Nc3 Ne4 Nb1 Ng5 Rh4 Bb4 Rb5 Bd2 h7 Re8 Rh3 Bc1 Rh6 Re7 Rb4 Qf8 Rb7 Nd8 Kb4 Qfg8 Kc5 Qh1 Rb6 g1B Ra6 Qhh3 Ra5 Qa6 Rb5 Re5 Ra5 Qb7 Kd6 N4e6 Ke7 Bd4 Ra4 Ne4 Ra5 Rh5 Ra6 Qc6 Rb6 Nf8 Rb4 Nbd7 Rb8 Ng5 Rc8 Rb8 a8Q Qg4 Qa7 Ra8 Qc5 Nb8 Qc4 Ra5 Qa4 Qa8 Qd7 Qh3 Qg4 Ra4 Bc5 Ra1 Ba3 Ra2 Nh1 Qf7+ Kd6 Ndc6 Qe4 Nfd7 Rh8 Nd8 Ng3 Qg8 Ke7 Nf8 Qf4 Qc8 Qg4 Qce6+
7N/1P1n1nQN/1n1BR1q1/1R4P1/b1Brnq2/qbPnp3/1k2K1pP/1r2b3 w - - 0 1 illegal: No proof kernel
2n1bK1N/PBbNnR1r/3Rp3/4b1Pq/1B1P1nq1/1r2n2P/5qp1/1Q2nk2 w - - 0 1 illegal: No proof kernel
8/1nbnK1Np/BNRn3r/3bPpP1/P2rB1Rn/Q6P/1rn2q1k/3n3n w - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Na3 g4 Be3 g3 Bf2 gxf2+ Kd2 exf6 Nb1 f5 Qe1 f4 Qc1 Bh6 Qd1 Bf8 Kd3 Ke7 Ke4 Ke6 a4 f5+ Kd3 Ke5 Kc4 d5+ Kb5 d3 g4 f3 e4 Kf4 c4 b3 e5 d2 g5 b2 h3 Kg3 c5 d4 c6 d3 c7 Nh6 Qc1 d1N Be2 f1N Qd2 f2 Kc4 b5+ Kb3 b4 Kc4 b3 Nc3 b1N Qe1 b2 Bh5 d2 Bg4 Nh2 Nb5 Nbc3 Qe3+ Nf3 Rb1 f1N Qe2 Nf2 Nd6 d1N Kc5 Nd7+ Kc6 Nb5 Nc4 Nh4 Nb6 Ra6 Qc4 Nfe3 Qe2 Nc2 Bf3 Nd6 Rh2 Nh1 Qe3 Nhf7 Rc1 b1R Qa3 Nb7 Be4+ Rb3 Nf3 Nfd6 Rd2 Rb2 Rd4 Qe7 Kd5 Qf7+ Kc6 Qa2 Rc4 Be7 Nd4+ Kh2 Ne6 Bd8 Ng7 Re8 Rd4 Re6 Rc4 Ra5 Rd4 Rd5 Rb4 Rd4 Rc4 Nc3 Rg1 Nd1 Rg4 Rh6 Rc3 Nf8 Rc4 Be6 c8B Bc7 Rc3 Nc5 Ba6 Ncb7 Rc4 Nfg6 Rc3 Bd5+ Kd7 Nf8+ Ke7 Nd7 Rc6 Qb3 Rg3 Qf3 Rg4 Qf2
1N2q3/r3n1k1/5rr1/KPB1pQq1/R1PbPPN1/np4qb/b1B2r2/2n4R w - - 0 1 illegal: No proof kernel
1NbR3K/1p1P3N/b6b/p2P1Qqb/Rqr1nq2/1P1BkP2/nr5B/2r4n w - - 0 1 illegal: Other
3b3B/r2P3P/k3bn1R/p1qBnrQ1/bP1p1P2/6b1/3q1Nb1/1b1NRKb1 w - - 0 1 illegal: No proof kernel
Qn2N2n/3q2Pb/pK1p1b2/n5nN/b3P3/PRB1rn1P/1B1r1k2/r1R2b2 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 d5 gxf4 g5 e6 Bh3 exd5 Bf5 d4 Bg4 hxg4 Kf2 Ke7 e4 Kd6 b4 Ke5 a3 c5 b5 f5 b6 f3 g6 a6 g7 d3 Ke3 f4+ Kd2 Kd4 b7 f2 Nh3 f1N+ Ke1 g3 Qh5 g2 Kf2 g1N Ng5 c3 Nh3 c2 Qd1 c4 Qe1 d2 Ra2 d1B Qe2 f3 Bg5 c1N Qc2 c3 Bf4 Nd2 Ra1 Ncb3 Bh6 Be7 Qc1 c2 Bg5 Bf6 Nf4 Ne7 Bh6 Ng6 Nh5 Na5 Nc3 Ra7 Qb2 c1R Rb1 Ba4 Nd5+ Rc3 Qc1 Re3 Nc7 Rh7 Bg5 Nh8 Rb3 Qe7 Ne8 Nh3+ Kg3 Qe6 Qc6 f2+ Kg2 Nf3 Rc1 f1B+ Kg3 Re2 Bd2 Nhg5 Kf4 Re3 Bc3+ Kd3 Qd5+ Ke2 Bb2 Kf2 h3 Rh6 Bc3 Rg6 Qc6 Ngf7 Bb2 Rg1 Bc3 N7g5 Qd5 Nbc6 b8B Qf7 Bbe5 Nb8 Qc6 d6 Qa8 Rc7 Bb2 Rc2 Bec3 Ne6+ Kf5 Qd7 Bd4 Rd2 Be5 Bh4 Bec3 Neg5+ Kf6 Qb5 Ke7 Bf5 Kd8 Bh7 Kc7 Qd7+ Kb6 Ngf7 Rb4 Bf6 Rb5 N7g5 Rb3 Be2 Rc2 Ra1 Rc1 Bf1
b4n1N/1q1qRP1p/3qr3/pk2b3/rP2P1Q1/P3rRr1/B1N2r1B/3K1rn1 w - - 0 1 illegal: No possible last move
4Bb1K/1p4PQ/NP1q1b1R/1n1rNb1P/2r2b2/Pqbrbn2/1R1p3k/1B6 w - - 0 1 illegal: No proof kernel
b2N4/b1P1b3/Pqpq1bB1/3N3p/n3P1rq/q4Q2/k3Pq1R/n1BK1rR1 w - - 0 1 illegal: Other
nNn1B1N1/2p4q/2P3br/5qPR/kPQnpB2/2r4P/r2R4/b1nb2Kr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 e4 d5 f5 dxe4 f6 gxf6 g5 f5 Qe2 f4 Qg4 hxg4 Kf2 Kd7 b4 Kc6 d4 f5 c4 a5 h3 e5 c5 f3 Bg2 Kb5 d5 e3+ Kf1 f4 c6 e4 d6 g3 d7 a3 Bd2 a2 Rh2 e2+ Ke1 a4 Be3 f2+ Kd2 e1N Ke2 f1B+ Kd2 f3 Bd4 f2 Ke3 a3 Bg7 Nf3 Bc3 Ka4 Ne2 Rh6 Bh8 Nd4 Ng1 Qe7 d8Q Be2 Nd2 f1Q Bf3 g2 Rd1 a1R Nc4 a2 Rh1 Bg7 Ne5 Bf5 Ng4 Rc1 Rh2 a1R Nf6 Ra2 Qd5 Bg6 Bh5 Nd7 Qc4 Nb6 Nf3 g1N Ne5 Qf5 Ned7 Rc3+ Rd3 Qf7 Nb8 Bd1 Rd2 Ne7 Ng8 Be5 Bg7 Nec8 Bf8 Bh8 Bd6 Nge2 Bf4 Qh7 Kf2 Nc1 Kg1 Ra5 Rg3 Na8 Rg4 Rc5 Rh4 Rcc2 Rd3 Rh2 Rd2 Nc2 Be2 Ba1 Rh5 Nd4 Bg4 Qf8 Bd7 Qf5 Qc3 Rc4 Be8 Rc5 Qd3 Rc3 Qc4 Rh1+
2bB2qb/RP1k4/1qr2ppb/4Bq2/3nNPK1/1r1r3P/P5R1/Qbnr3N w - - 0 1 illegal: No possible last move, all moves rejected
QBN4b/RP1n1P1P/p1NK2b1/1q3r2/5n2/3rn1bk/PpbR3q/r3n2B w - - 0 1 illegal: No proof kernel
q3Rb2/3n3R/2B1r3/PP1b1K2/b4N2/4r1pq/1Pp1p1Pq/kBrQ1nnN w - - 0 1 illegal: Other
3R4/1r1Nq3/3r1P2/K1Q3Rp/p1nNPBb1/2b2b1n/1bPpP1b1/1kn3qB w - - 0 1 illegal: Other
B1r2k2/2rq1P2/N1bq2qn/1p1bQ1b1/K5p1/1PpR3N/P3Pn1B/R3b1b1 w - - 0 1 illegal: No possible last move
b1nr2b1/QP5b/p3qRb1/2PP3k/P1BN3b/K1N1b3/p1b1n1p1/2r2RB1 w - - 0 1 illegal: No proof kernel
1B4B1/1n4r1/2n1bpp1/3nPPP1/bN4r1/q4Rp1/PRqrbQ1N/K2kb3 w - - 0 1 legal: proof: d4 e5 g4 exd4 c4 h5 b4 a6 b5 axb5 g5 bxc4 Qd3 c3 Qg3 Rh6 Qg2 Rh8 Qg4 hxg4 Kd1 Ke7 Kc2 Ke6 f4 Kd5 h4 Ke4 f5 c5 h5 b5 h6 d5 e3 c4 h7 g3 Bb2 b4 Rh5 g6 Bc1 d3+ Kd1 c2+ Kd2 b3 Kc3 f6 Kb2 d4 Rh1 d2 Nh3 Kf3 e4 d1R e5 d3 Nc3 d2 Bd3 Qe7 Nf2 Nc6 Rh4 Ra7 Ng4 Be6 Nb5 Qa3+ Kc3 Nge7 Be4+ Ke2 Bb2 c1N Ne3 Nd3 Rh5 Nc5 Nd5 Nb7 Nb4 Ke1 Bc1 b2+ Kc2 c3 Kb1 Rg8 h8Q Ra4 Rh2 Nd5 Nd4 Rg7 Bc2 Bc5 Bb3 Bb6 Rf2 Bc7 Rf4 Ba5 Nf3+ Ke2 Nh2 Ke1 Na6 Rc4 Rf3 Rg4 Nb4 Ke2 Qf8 Ke1 Qc5 Ke2 Kc2 Ke1 Kd3 c2 Qb6 b1B Bb2 Rh7 Bd4 Rg7 Qc5 c1Q+ Qc2 Qcb2 Ba7 Rc1 Bb8 d1B Rf4 Bf3 Kc4 Rd1 Qg2 Bbe4 Rb1 Qf2 Rb2 Rd2 Qg1+ Ke2 Qg2 Bc2 Qg1 Nde7+ Kc3 Qg2 Qd4 Kd1 Qf2 Be2 Rf3 Bb6 Qe3 Ba7 Qf4 Bf2 Qd4 Be1 Qf2 Qa5 Bd5 Ba4 Bc4 Bc8 Bg8 Be6 Rc2 Qc5+ Kb2 Nd5 Ka1 Qe3 Rb2 Qa3 Rc3 Qe4 Rf3 Qc2
nBrq1RNr/p3n3/5P2/5qP1/n1p2Qp1/Pn1r2B1/2b1kb1P/2KN1b1R w - - 0 1 illegal: No proof kernel
2n3n1/3bPQ2/1Pp1nbrr/BpNr1b2/5P1R/2K1p2B/1nR1q1NP/1k4r1 w - - 0 1 illegal: No proof kernel
5n1q/q5R1/P2Pb3/nPbp1K2/1N1k1p1P/QnqrN3/np1B1q1R/2r4B w - - 0 1 illegal: No proof kernel
3rbkr1/1p1qR3/qP1bBb1r/1Rr3N1/3K2p1/P1np4/2QPB2P/2Nn3b w - - 0 1 legal: proof: g4 c5 f4 h5 b4 hxg4 f5 a5 b5 c4 f6 c3 Bb2 cxb2 c3 exf6 Qc2 f5 Qb3 f4 Qb4 axb4 Kf2 g5 e4 f5 a3 d5 c4 d4 c5 g3+ Kf3 g2 b6 b3 c6 g4+ Kf2 f3 e5 f4 e6 Bd7 c7 Nh6 c8B Nc6 e7 Rg8 Be2 Nf5 Bb5 Na7 Be2 Ne3 Bd3 Nd1+ Ke1 f2+ Ke2 f1R Bf5 f3+ Kd3 f2 Ke4 Nb5 Kd5 Nbc3+ Kc5 d3 Ne2 g1B Nc1 Ba4 Kc4 Qd7 Ne2 Re1 Bh7 f1B Bf5 Bg2 Nc1 Bd4 Ra2 Re5 Re1 Bh1 Be4 Rh5 Ra1 Rh6 Bf3 Bf6 Be2 Kf7 e8Q+ Kg7 Ra2 Bd6 Qe6 Kf8 Ra1 Ra5 Qe3 Re5 Qc5 Re8 Qc7 Rd8 Qc5 Qf7+ Be6 Be8 Qc7 Qd7 Qc6 Na4 Nc3 b1Q Ne4 b2 Ng5 Nac3 Qc8 Qc2 Ra2 b1R Rb2 Qca4+ Rb4 Qa6+ Rb5 Bb8 Qc6 Rb4+ Kc5 Re4 Qc8 Re5+ Kc4 Nd5 Kd4 Bd6 Qc2 N5c3 Rg1 Bf7 Rg3 Be8 Rh3 Rhg6 Rh7 Rh6 Re7 Rc5+
2q2b2/2P5/N2rpP1n/R1pPK1q1/2r2pQB/3p4/PRbn1NB1/2r1n1kb w - - 0 1 illegal: No proof kernel
3br3/P1k5/3Nqn2/1rp1Pp1n/rbb1P2P/Q3B3/Bppb4/KR1N1bR1 w - - 0 1 illegal: Other
N5kB/rpP1p1n1/1qRp4/3PR3/pnb1N2B/b2P1bK1/2b1Q1Pr/2q3b1 w - - 0 1 illegal: Other
4rb1k/1pn1b3/4RbQ1/N2Pp2p/b1q1R3/Bp2nP1K/P2PrN2/bB4b1 w - - 0 1 illegal: Other
2B2n1Q/Pnkp2n1/p4P1p/1Pbb4/q1Bb1p1R/1rR4N/P1b1K3/Nn5r w - - 0 1 illegal: Other
3B4/3q4/PrR2rqN/p1rPbb1K/1p2N3/P3BpRP/n1p3pQ/nq2k3 w - - 0 1 illegal: Other
2R1B3/B7/1pPB3b/N1Qq1P2/1P3n1q/1r1k1P2/nrr1rR1r/4Kn2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Bb7 Qd2 Ba6 Qd1 Bc8 h4 bxa4 Nd2 g5 Nc4 gxh4 Nb6 axb6 Bg2 Ba6 Bh3 Bf1 Bxf1 a3 c4 Kf7 h6 Kf6 f3 Ke5 h7 d5 c5 h3 b3 a2 c6 d3 Qd2 Kd4 Qa5 e5 Kf2 e4 Bf4 d2 Bh6 d1Q Bd3 h2 Qd2 e3+ Kg2 e2 Kf2 e1R Rc1 a1R Qa5 Re2+ Kg3 Rb1 Bc2 Na6 Bd3 Nb4 Rc3 Reb2 Rc2 Na2 Kf2 Nf6 b4 Nh5 Bf4 Bh6 Bd6 Nf4 Bc4 Ra6 Bb3 Kd3 Qc5 d4 Bf7 Ra7 Ne2 Qh4+ Ng3 Rb3 Be8 R1b2 Bb8 Rg7 Ba7 Rg4 Re1 h1N+ Kf1 Rg6 Ne4 Rg2 Nd6 Re2 Nc4 Ng3+ Kg1 Nf1 Na5 Rh2 Rg2 Rg8 h8B Rg6 Re7 Re6 Rc7 Ree2 Bg7 Rec2 Rc8 Qe2 Bh8 Qe6 Be5 Qd5 Rg7 Ke2 Rg8 d3 Bd6 d2 Rg2+ Kd3 Re2 d1R Rf2 Rdd2 Rd8 Ne3 Rc8 Ng4 Kf1 Ne3+ Ke1 Nf1 Be7 Qh5 Bf8 Qh4 Bd6 Re2+
4qb1k/1q1p2N1/P1Pbq2b/B1p1q3/5NnN/1B3P1P/b2bK1Q1/5R2 w - - 0 1 legal: proof: b4 b5 c4 a5 e4 axb4 g4 f5 a4 fxe4 g5 Ra5 Ra3 bxa3 g6 b4 Qb3 Rb5 Qd1 hxg6 Ne2 g5 Ng1 g4 cxb5 c5 d4 g5 b6 Nc6 d5 Ba6 a5 Bc4 a6 Na7 bxa7 Rh6 Bd3 Bb3 Bf1 Rc6 dxc6 Ba2 a8N Kf7 f3 Kg7 h3 e5 Bb5 g3 Bd2 e3 Qe2 e4 Qf2 b3 Bc1 b2 Nc3 b1Q Be2 g2 Na4 g4 Bf1 g3 N4b6 e2 Qe3 Kh8 Nc4 Qe8 Nd2 Nf6 Nc7 Qb7 Qb3 Ng4 Nc4 Qe6 Kd2 e1B+ Ke2 e3 Ne8 Bd2 Ng7 Qe8 Ne5 Qe6 Kd3 e2 Qc2 e1Q Ne2 g1B Nf4 g2 Be2 Bge3 Rf1 g1B Bd1 Bh2 Neg6+ Kh7 Nh4 Kh8 Bb2 Bg3 Bc3 Bh2 Nd5 Bh6 Ba5 Bhd6 Nf4 Qe8 Qb2 Q1e6 Qc2 Bb3 Qb2 a2 Bc2 Bd5 Bb3 a1Q Qa2 Qae5 Qc2 Be3 Qh2 Bd2 Qg2 Be4+ Ke2 Bb1+ Kd1 Be3 Ke1 Ba2 Ke2 Bd2+
3Nb1Rb/qq1rP3/1P1pRn2/1BNP3k/Q7/b2p1b1P/4n3/N2nr2K w - - 0 1 illegal: No possible last move
r2kN1n1/1p4pr/1NPP2P1/8/2qB1Q1b/2P3Nq/1b1qnrRq/1K4B1 w - - 0 1 legal: proof: g4 f5 a4 a5 e4 fxe4 g5 c5 c3 h5 Be2 c4 Bg4 hxg4 Ra3 d5 Rb3 d4 Rb4 axb4 a5 d3 a6 Nc6 a7 Rb8 a8R Be6 Ra2 Ra8 b3 Nb8 bxc4 Bc8 Rb2 Bd7 Rc2 Ba4 Ra2 Bc2 Rxc2 dxc2 f4 e5 d4 b3 Kd2 b2 h4 g3 f5 g2 c5 Ra7 d5 Ra8 c6 Rh7 h5 Qc8 f6 Ba3 g6 Nd7 f7+ Kd8 f8B Nb6 h6 Qh3 Ne2 g1Q Bc5 Qgh2 Bd4 e3+ Kd3 Be7 Rg1 Bh4 Nd2 b1R Qf1 Rb2 Ng3 e2 Qf4 e1Q Nc4 Rba2 Rg2 Qf1+ Kd2 e4 Ba3 Qd3+ Kc1 e3 Bac5 e2 Bg1 Qe4 Bcd4 Qee6 d6 Nd5 Nb6 R2a4 Kb2 c1B+ Kc2 e1Q Kb1 Rh8 h7 Qd2 Nd7 Bb2 Nf6 Qee2 Ne8 Qc4 Ne4 Ngf6 Ng3 Rf8 h8N Ng8 Qf3 Nf4 Nf7+ Kc8 Qf1 Ne2 Ne5 Kd8 Nd7 Rf2 Nb6 R4a5 Qc1 Rh5 Qf1 Rh7 Qc1 Qg5 Qf4 Qh6 Qf3 Qe3 Qf4 Qd2
R2R3Q/1P3rn1/Np5K/1R2n2B/n2Prn1q/3rPp2/1N2bPk1/4q2n w - - 0 1 legal: proof: c4 g5 b4 d5 h4 gxh4 b5 Bg7 b6 Bf8 a4 Bh6 a5 Bf8 a6 cxb6 axb7 Qd6 Ra5 Qd7 Ra1 Qd8 c5 f5 g3 f4 c6 f3 c7 Bh6 Ba3 Be3 Bb4 Bf4 gxf4 e6 d3 e5 Kd2 e4 Kc2 e3 Bd2 Bf5 c8R exd2 Rc3 Bc8 Rc4 dxc4 f5 Ke7 f6+ Ke6 e3 Kf5 f7 Kg4 f8R h5 d4 a5 Qe1 d1R Rh2 c3 Na3 a4 Ba6 h3 Qd2 h4 Kd3 c2 Ke4 c1N Nb1 a3 Bc4 a2 Ke5 Nd7+ Ke6 Nh6 Be2 Nd3 Qb4 Nf4+ Kd6 Rh7 Rf5 Rf7 Qb3 Rd3 Na3 Rb8 Rh1 h2 Nb5 h3 Nc7 Qh4 Rb5 Ne5 Na6 Bd7 Qc4 Rh8 Qc8 Re8 Qa8 Ree7 Qh8 Be6 Bf1 Bc4 Ne2 Re8 Nc1 Ree7 Rab1 a1N R1b3 Re8 Ra3 Nb3 Bg2 Nc5 Bf1 Rc3 Bd3 Na4 Bg6 Be2 Nd3 Rb3 Nb2 Rd3 Rc1 h1Q Rc8 h2 Rd8 Kh3 Bh5 Qe1 Ra2 h1N Ra1 Ng2 Kd5 Nf4+ Ke4 Kg2 Ra3 Ng8 Ra2 Nf6+ Kf5 Qh2 Kg5 Qh4+ Kh6 Ree7 Ra3 Ne8 Rc3 Ng7 Rcc8 Neg6 Rb8 Re4 Ra8 Ne5
RN5k/1n1n2n1/R3rPqP/1KB3N1/b3Pbp1/P1Q2n2/6pR/b2n2n1 w - - 0 1 legal: proof: d4 a5 g4 h5 b4 hxg4 c4 d5 cxd5 axb4 Nh3 e6 Ng1 e5 e3 exd4 Nh3 b5 Kd2 c5 Bd3 f5 Ke2 f4 Ng1 f3+ Kd2 Ra6 Be2 Rc6 dxc6 fxe2 Kd3 Kf7 h4 e1N+ Ke4 g5 f4 Kg7 c7 g3 a3 g2 h5 d3 f5 d2 Qc2 d1N Nd2 g4 Rh2 b3 Rh1 b2 Nb1 c4 Nf3 c3 Nh2 b4 Qd2 b3 Qe2 c2 Nc3 b1N Qd2 b2 Ra2 Nd3 Rg1 Qg5 Kd5 Bd7 Kc4 Nh6 c8R Nc5 e4 Nb7 Nd5 Qg6 Nf6 Ba4 Rh1 Nd7 Nf3 Nbc3 Ng5 b1N Ra8 Ne2 Qc3 Ng1 Be3 c1B Bc5 Bf4 Rc2 Nd2+ Kb4 Rh7 Rh2 Ndf3 Rd2 Kh8 Rd6 Rf7 Rda6 Re7 Kc4 Re6 Kb4 Nb8 Nd7+ Bg7 Kc4 Bd4 f6 Nf5 h6 Ng7 Bf8 Nc6 Nb8 Nce5+ Kb4 Nd7 Bc5 Bb3 Kb5 Bde5 Qd2 Ba1 Qc3 Ba4+
N7/K1P5/1b1rP2p/1rk1P3/b2p2n1/p1N1nB1Q/bB1n2P1/qN1R2b1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 c4 g5 b4 g4 Nh3 g3 Ra3 gxh2 Rc3 dxc3 Qd4 Nh6 Qg1 hxg1B Nf2 Ng8 e4 Ke7 Ke2 a5 Ke3 f5 Kd4 d5 Kc5 d4 e6 f4 b6 c2 b7 a4 b5 f3 b6 h6 Bg5+ Nf6 Nc3 c1N Nfd1 f2 Rh5 Nb3+ Kb5 Kd6 Nb1 Ng4 Ndc3 Ra6 Bc1 Nd7 b8N Ne3 b7 Nd2 Bb2 Nf6 Nd7 Nfg4 Be2 f1B b8Q+ Qc7 Rf5 a3 Bf3 Rc6 Nb6 Bd7 Ka6 Rg8 e5+ Kc5 Rf6 Rd6 Qb7 Ba4 Ka7 Be7 Rf8 Bd8 Na8 Qh7 Rf7 Ba5 Qb3 Rb8 Rb7 Qe4 Rf7 Rb5 Rf6 Kc6 c5 Bc4 Rf4 Bd5 Rf5 Qc2 Rh5 Qc1 Rh1 Bh2 Rd1 Bg1 Ne4 Bc4 Qc3 Kd5 c6 Ba2 Qd3 Qc3 c7 Qc1 Nec3+ Kc5 Qf5 Nf6 Qh3 Nfg4 Ne2 Qc3 Bc1 Qb2 Nec3 Qa1 Bb2 Bb6+
1nknq2N/pNrn2pb/2Q1p1P1/r2P1pPK/3R2Bp/P4r2/4B3/4N3 w - - 0 1 legal: proof: e4 b5 Ke2 Na6 Nh3 c5 Ke1 Rb8 Ng1 Rb6 Qg4 Rd6 Qd1 Rd5 exd5 Qb6 Nc3 Qc7 Nb1 Qd8 b4 cxb4 d3 e5 Be3 b3 Bc5 Nxc5 Ke2 b4 Kd2 Na4 Ke1 Nb2 Kd2 Bc5 g4 Bxf2 h4 Qf6 g5 Ke7 g6 Qc6 c3 Qc4 Kc1 Ke8 Na3 Bb6 Rb1 Bd8 Ra1 Bg5+ hxg5 Qd4 Rb1 Nc4 Rb2 Qc5 Rf2 Nb2 Rf6 Qf2 Re6+ dxe6 d6 Kd8 d7 h5 c4 e4 c5 h4 d4 e3 d5 e2 Kd2 e1N+ Be2 Nbd3 c6 b2 Nb1 b3 a3 Nc5 Rh2 Nc2 Qc1 Nd4 Nh3 Nh6 Rg2 Rf8 Nc3 b1R Ne4 b2 Nf4 f6 Nd3 Nf7 Qc4 Rc1 Nd6 b1R Rg4 Rb5 Ne1 Ra5 Nb7+ Kc7 d8N Bd7 Qb5 Kc8 c7 Nc6 Rd4 Nb8 Qc6 Qf5 Ke3 Be8 Bf3 Ncd7 Bg4 Qc2 Kf4 Qa4 Bh3 Rc3 Kg4 f5+ Kh5 Rf3 Qc1 Qc6 Bg4 Qb5 Nc6 Qa4 Ne5 Nd8 Nf7 Qc6 Nh8 Bf7 Qc3 Bg8 Qc2 Bh7 Qc1 Nc5 Qc4 Rf7 Qc1 Kd7 c8B+ Kc7 Qc4 Qe8 Bd7 Re7 Bb5 Kc8 Qa4 Rd7 Be2 Rc7 Qc6 Ncd7
2r2N2/P4Pbb/k4P2/1b4nK/3Qr2n/qbB1R1n1/2Pq1B2/bnBR3n w - - 0 1 legal: proof: g4 f5 gxf5 d5 e4 dxe4 b4 h5 b5 c5 b6 axb6 Be2 b5 Bg4 hxg4 Nc3 c4 Nce2 b4 Nd4 Qd7 Nb3 cxb3 Qf3 Qc7 Qd1 Qd8 Ke2 Kd7 h4 Kc7 a4 Kb6 f4 g5 d4 e5 h5 g3 a5+ Ka6 h6 b5 d5 g2 h7 g4 d6 g3 f6 e3 Kf3 b2 f7 b1B f5 e4+ Kg4 b3 d7 b4 f6 e2 Kh4 e1B Qd5 e3 Kg5 b2 Qe5 e2 Ra2 b3 Kg6 Ne7+ Kh5 Nbc6 Qc5 Bg7 Rh3 Re8 h8B Nf5 Rh2 Ne5 Rh4 Ng4 Qe5 Bc3 Bh6 e1Q Qe4 Nf2 Kg6 Qd2 Be3 Nh1 Qa4 Re4 Kg5 Qe7 d8B Qa3 Ne2 g1N Bf4 g2 Rh3 Nfg3 Be3 Bf5 Qd4 Rc8 Ra1 Bh7 Nf4 Ba2 Rd1 b1B Ne6 b2 Nf8 Bc4 Bc7 Bba2 Be5 Kb5 a6 b1N a7 Ba1 Rh4 Bab3 Rh3 Nf1 Kh5 Ka6 Bf2 Bb5 Re3 Nf3 Nd7 g1N Nf8 Bh6 Bg7 Nh3 Qd3 Nhg5 Bc3 Nh4 Qd4 Qb2 Nd7 Qa2 Bf8 Qa4 Ba3 Bg7 Bc1 Qa3 Nf8 Nfg3+
3RN1B1/qq5b/Pn1PRbrR/k1r4n/P5nb/K3b2P/3b4/1N1q1Qq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 dxc4 Bb2 e5 Bd4 exf4 Bf2 Ke7 Bh4+ Ke8 Bg3 fxg3 e4 Kd7 a4 Kc6 d4 f5 Kd2 g5 Kc2 b5 Kb2 g2 a6 Kb6 h3 c5 e5 f4 d5 f3 e6 f2 e7 c3+ Ka2 c2 e8R c1B Bd3 f1N Re1 b4 Qd2 c4 Qc3 g3 Re4 g4 Re6+ Ka5 Be2 Bd2 Rg6 Rh5 Rc6 Bf5 Qa3 b3+ Kb2 Ne3 Rb6 Be7 Bd1 Bh7 Qa2 Bf6+ Nc3 Nd7 Rb8 Nb6 Ka3 b2 Bb3 b1Q Nce2 c3 Nd4 c2 Nde2 c1B+ Qb2 Qc7 d6 Qb7 Bc4 Rc5 Nf3 g1Q Ng5 g2 Ne4 g3 Rd8 Ng4 N2c3 Bdg5 Ba2 Bcd2 Qc1 Bh4 Qf1 Qd1 Nb1 Qf2 Rh2 g1Q Rg2 Qd4 Rf2 g2 Rf5 Rc8 Rh5 Rc7 Be6 Rg7 Rh6 Rg6 Bb3 Qdd5 Ra2 Qa7 Rc2 Qdb7 Bf7 Ne7 Bg8 Nf5 Rc3 Ng7 Re3 Nh5 Re1 Bd4 Nf6 B4c3 Ne8 Bcf6 Ba2 Qh1 Re4 g1B Bg8 Bge3 Re6 Qg1
B1R1q2n/rr1kP3/Q2B1rPn/5rb1/1N2K2q/1P2N3/n1P4N/1q2n1rb w - - 0 1 illegal: No possible last move
1qb4q/2B1N2N/2b1RPbq/3Q1nr1/4K1rn/3rRR1q/4PrPP/3k3b w - - 0 1 illegal: Other
1B5b/4B1Rp/K1NqrRnP/1rnq1b1Q/k1PPR2r/P1q5/8/qb1q4 w - - 0 1 legal: proof: d4 a5 b3 c5 b4 axb4 e3 cxd4 Ba3 d3 Bb2 Ra7 Bc1 Ra8 Nf3 d5 Ng1 d4 exd4 Ra5 Be2 Ra4 Bf1 Ra8 f4 f5 Nc3 Nd7 Be2 Nb8 Bf3 g6 Be4 fxe4 f5 g5 Nd5 Nc6 Nf4 gxf4 Qf3 Nb8 Qg4 Nc6 Qd1 Nb8 Kd2 Kd7 g4 Kc6 h4 Kb5 g5 e5 g6 e3+ Ke1 e2 Kd2 e1R f6 e4 g7 b3 Kc3 e3 h5 f3 a3 f2 h6 f1Q f7 b2 Nf3 b1Q Nh2 d2 Bb2 e2 Rg1 Na6 Bc1 Qa2 Rh1 Ne7 g8R Qd6 Nf3 Nc5 Nh2 Ra5 Bb2 Bg7 f8B Ka4 Rc1 b5 Nf3 Ng6 Ne5 Qad5 Be7 Bf5 Nc6 Qg1 Rf8 Rg8 Rf6 Bh8 Rh4 Re8 Ra1 Rf1 Bc1 e1Q Qh5 d1Q+ Bd2 Rf4 Ra2 Re4 Rf4 Re6 Re4 Qa1+ Rb2 Qec1 Bf4 Qgd1 Re1 Re4 Be5 Rh4 Re4 Qd7 Bb8 Q7d6 Bf8 Re5 Be7 Re6 Re3 Q5h1 Re4 b4+ Kc4 b3 c3 Rb5 Rg2 b2 Rgg4 b1B Rg5 Nf8 Rg7 Qdh2 Kd5 Ng6 c4 Re5+ Kd6 Qcc3 Kc7 Qhf3 Re1 Qd5 Re4 Ra5 Kb6 Re6 Bf8 Qhd6 Be7 Rb5+ Ka7 Nd7 Ka6 Nc5+
1b3k1q/3Pr2p/R3Rb2/1P1P2Qq/PB3q2/Kb6/2R1rNrB/nn1n3n w - - 0 1 legal: proof: e4 d5 exd5 b5 h4 a5 b4 g5 c4 gxh4 Be2 bxc4 Nc3 f5 Ne4 fxe4 Bd3 a4 Bc2 Bf5 Bb3 axb3 Rh2 Be6 Rh1 Bc8 d4 c5 Kd2 e5 Kc3 e3 Kb2 e4 g4 e2 f4 e1B a4 c3+ Ka3 c2 d6 c4 f5 c3 f6 e3 g5 h3 b5 b2 g6 b1N+ Ka2 h2 g7 e2 Nh3 Na6 Bg5 c1Q Bh4 c2 Nf4 Nh6 g8R Nc5 Nh3 Qg5 Rg1 c1Q Rg7 h1N Ra7 Rg8 Rf1 Ng4 Ng1 Qcf4 Qd3 Be7 f7+ Kf8 Qg3 Bf6 Nh3 Nb3 Ra6 Qh5 Rf2 Be6 d7 Ne3 Qg5 Nd1 Bg3 Bd2 Rh2 e1R Nf2 Re2 Rg2 Bc4 d5 Re7 Bh2 Bdc3 Nh3 Bce5 Rc2 Bb8 Nf2 Rg7 Qf5 Rg2 Qg5 N1d2 Rb1 Na1+ Ka3 Ba2 Rb4 Bb3 Re4 Qe8 Ra5 Ra6 Re6 Rc6 Ra7 Rc3 Ra8 Re3 Raa6 Re2 Qe5 Kg7 Qe3 Qh8 f8B+ Kf7 Qg3 Re8 Bd6 Re7 Qg5 Kf8 Bb4 Nb1#
2b2brB/1r2PPBr/7n/1r3bP1/2r3P1/1k1p2q1/2R1N1Rr/1K1nQBn1 w - - 0 1 legal: proof: c4 a5 e4 f5 d4 g5 b4 axb4 h4 d5 Nd2 e6 hxg5 dxc4 d5 e5 Qg4 Qf6 Ndf3 Qd8 Nd4 exd4 e5 Ne7 Qf3 Ng8 Qe4 fxe4 Kd2 Ke7 Kc2 c5 g4 b5 f4 h5 a4 e3 f5 b3+ Kb1 c3 a5 c2+ Kb2 e2 a6 e1R e6 Kd6 e7 c4 f6 Kc5 a7 Kb4 f7 h4 d6 h3 d7 h2 Be3 c1R Bh3 Nh6 Nf3 Nc6 Rb1 c3+ Ka1 b2+ Ka2 c2 Ra1 b1R Bg1 Re2 Bg2 Rh7 Ne5 Qc7 Ng6 Ne5 d8B Nf3 Bf1 Qg3 Bf2 Ng1 Bc7 Ka4 Ne5 b4 Ba5 Rd1 Nf3 c1R+ Nd2 d3 Bd4 Rc4 Bh8 Rb3 Bc7 Rdb1 Ba5 Rb8 a8Q Rb7 Qb8 Rbc1 Rb1 Rb2+ Ka1 b3 Bac3 Re5 Nf3 Reb5 Nd4 Re2 Bg7 b2+ Ka2 Bf5 Ra1 b1N+ Bb2 Rc8 Qe5 R1c4 Qe3 Rf2 Ne2 Kb4 Bbd4 Nc3+ Kb2 Rg2 Rc1 Nd1+ Kb1 Kb3 Rc2 Be4 Bge5 Bf5 Nc3 R8c6 Qe1 Rg6 Ne2 Rg8 Bh8 Nf3 Rg1 Bc8 Qf2 h1B Bde5 Rh2 Qe1 Bg2 Beg7 Bh1 Rg2 Ng1 Rf2 Be4 Rg2 Bef5
NbB1r2n/bn3n1R/1r2bB2/1n1r1b1Q/P1q1N1P1/4B1PP/1np5/k4K2 w - - 0 1 legal: proof: a4 d5 c4 dxc4 b4 h5 e4 f5 g3 fxe4 b5 h4 b6 h3 Ra3 axb6 Re3 b5 Re2 g5 f3 b4 Rg2 g4 fxg4 hxg2 d4 Kd7 d5 Kd6 h3 Kc5 d6 e5 d7 b5 Be2 b3 Qd5+ Kb4 Qd4 c5 Qf2 c3 Bf4 c2 Nc3 Ka3 Bc4 Kb2 Bg5 e3 Qf7 c1N Qh5 b4 Ne4 e2 Be6 c4 Bf4 c3 Nf2 e4 Qh4 Nh6 Bc4 Qc7 d8B Na6 Bb5 Be6 Be5 Ka1 Bc4 b2 Be7 b1N B7f6 b3 Bf4 b2 Bd8 Nf7 Qh5 Bd6 Bd3 Rh6 Bfg5 Nh8 Be3 Na3 Qc5 b1B Beg5 Nb5 Qc4 Nc5 Nd1 Ra5 Bh4 Nb7 Qd5 Qc4 Nb2 Bb8 Nf3 g1B Bdg5 Bga7 Be3 Rf6 Kf2 e1N Qh5 Rg6 Nd2 Nf3 Be2 Nd3+ Kf1 Nfe5 Bf6 Nef7 Rh2 Bc2 Rf2 Bb1 Rf5 Bc2 Rg5 Rh6 Rg7 Rg6 Nd1 Nb2 Rh7 Bd3 Nf2 c2 Beg5 e3 Nfe4 Ra6 Bh6 Rd6 Bf4 Rd5 B4g5 Qc8 Nc4 Qc6 Nb6 Qc4 Na8 Rh6 Nc5 Bdf5 Ne4 Rg6 Bd3 e2+ Ke1 Rg8 Be3 Re8 Kf2 e1R Kg2 Re2+ Kf1 Qc5 Bc4 Red2 Bb3 Rd6 Bd5 Rb6 Bc6 Rd6 Bd7 Rd5 Bc8 Qc4+
r1bR2Nb/qB3br1/p1Qrnr2/R1P1B3/3P4/2KrR1nn/6PP/1b4k1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 b5 a4 g5 Nc3 gxf4 Qh5 bxa4 Qxh7 c6 b5 c5 Na2 Na6 Nb4 cxb4 Be2 Nb8 Bc4 Nh6 Bf1 Ng8 d4 Kd7 Kd2 Kd6 c4 e5 b6 f5 b7 f3 c5+ Kd5 Kc2 f4 Ne2 f2 Kb2 f3 Bg5 a6 Re1 e3 Qc7 Ke4 Qd6 b3 Qd7 a3+ Kc3 a2 Qe6 a1R Qc4 b2 Rb1 Qe7 Nc1 e2 Qa2 e1R Kb3 Re3+ Kc4 Rh6 Bf4 Rd3 Kb4 Nc6+ Kc4 Nd8 b8R Ne6 Qb3 Bg7 Bg5 Qa7 Bf6 Ke3 Qb5 e4 Nb3 Bh8 Be7 Nf6 Bd6 Ng4 Rc1 b1B Be2 f1B Re1 Kf2 Rb7 e3 Bd1 e2 Na5 Rg6 Bf4 Rg7 Qc6 Raa3 Re7 Rab3 Rd7 Rb6 Qd5 Rd6 Nc6 Nf6 Bc2 Nh5 Be5 Nhf4 Ne7 Nh3 Qb7 Nhf4 Ng8 Nh3 Rc1 e1R Rd8 Be2 Qc6 Rf1 Re1 Bd1 Ba4 Bb3+ Kb4 Nf8 Re3 Bf7 Bb3 Ne6 Ba2 Rc1 Rd1 Rc2 Rd2+ Kg1 Bd5 f2 Rde2 Rc1 Ra2 f1N Ra5 Ng3 Bf3 Rf1 Bd5 Rd2 Kc3 Rf6 Qb5 Neg5 Bb7 Ne6 Qc6 Rd3+
n3b3/RN2pqBn/P1q3qr/1B1q1P2/P2q4/1Q1BNnr1/P1qbK3/6k1 w - - 0 1 illegal: Other
1nqrBRq1/2Bb1n1P/Nn2b3/5P2/pK2P3/1b2r1Pn/5N1n/1Q2bBk1 w - - 0 1 illegal: No proof kernel
qn2r3/1Rb1rnkB/qQ1P4/2Kn2N1/1P2B3/N3Pbp1/P2bN1b1/1r4n1 w - - 0 1 legal: proof: c4 b5 f4 bxc4 b4 d5 g4 h5 d3 hxg4 Qc2 e5 fxe5 a5 Qc3 a4 Qc2 a3 Bb2 axb2 Nd2 Bd6 Qd1 Bf8 Rc1 d4 Rc3 dxc3 Nb1 Qd6 Kf2 Qe7 Ke1 Qd8 Kf2 g5 Ke3 f5 h4 Kf7 e6+ Kg7 d4 c5 d5 g3 e7 g2 e8B g4 h5 g3 Nh3 g1N Bb5 c2 Bc6 c1Q+ Qd2 f4+ Ke4 c3 e3 f3 Qe2 f2 Ng5 c4 Kd4 c2 Nc3 b1R Bd7 Ra7 Bc6 Bd6 Nf3 Bb7 Nd2 Bc7 d6 Ne7 Bd5 Qa3 Kc5 c1B Be4 Qa6 Rh2 Re8 h6+ Kf7 h7 Kg7 h8N Nd5 Bh3 f1B Nf7 Bg2 Ng5 Bc6 Qh5 Ba8 Ne2 c3 Qf3 c2 Nc4 Bd2 Bhf5 c1N Na3 Bc6 Bh7 Nd3+ Kd4 Ne5 Kc5 Nf7 Qf6+ Kf8 Qd4 Qdc8 Rh6 Qcb7 Re6 Qa8 Re7 Bf3 Qd3 Kg7 Qb5 Ba5 Rb7 Bg2 Rb6 Rae7 Rb7 Bc7 Qa5 Bd7 Qb5 Bg4 Qb6 B4f3
4kB2/4rrn1/P1n1n1nB/RqbB4/1P2K2p/QbP2P2/2R2q1b/N3rr2 w - - 0 1 legal: proof: e4 a5 h4 g5 d4 gxh4 d5 f5 exf5 c6 Be2 cxd5 Bf1 d4 b4 a4 Qf3 Qc7 Qd5 Qd8 Qb3 axb3 a4 b5 a5 Kf7 Nc3 Ke8 Na4 bxa4 Kd2 e5 Kd3 h5 g4 d5 c3 b2 f6 b1R g5 e4+ Ke2 e3 Kd3 e2 f3 e1B a6 a3 g6 a2 g7 h3 Ba3 h4 Be2 h2 Bd1 Qd7 Bc1 Ra7 Bb3 Ne7 g8Q Nbc6 Bd2 Rh7 Bc2 Bg3 Bb3 Rf1 Bh6 Rf7 Qg7 Ng6 Bc2 Bc5 Rc1 a1N Bg5 Nb3 Nh3 Rc7 Rg1 h1N Nf4 Bh2 Bb1 Ng3 Ba2 Nf5 Qh7 Ng7 Ng2 Qf5+ Ke2 Be6 Qh6 Rce7 Rc2 Re1+ Kf2 d3+ Ne3 d4 Bf4 d2 Rg5 d1Q Rh5 Na1 Bd5 d3 Qg5 d2 Qg2 Bd4 Bh6 Bc5 Qf1 Qc1 Qb5 d1R Qa4 Qe5 Qa3 Qb2 Rf5 Rf1+ Ke2 Rde1+ Kd3 Qb8 Ke4 Nb3 Rh5 Nbd4 Re5 Rd7 Rh5 Rfe7 Rg5 Qb5 f7+ Kd8 f8B Ke8 Re2 Rf7 Nc2 Rde7 Na1 Qa2 Re3 Qf2 Re2 Rd1 Rc2 Rb1 Ba2 Bb3+ Re5 Nde6 Rh5 Ba4 Bd5 Rbe1+ Re2 Bb3 Bc4 Be3 Rc2 Qb7 Ra5 Qb5 Bd5 Bc5+
3b4/r1BP1b1q/qbqp1P1B/1k2qP2/r3n2P/3R3r/RKB4b/N4q1Q w - - 0 1 illegal: No proof kernel
b1qBkbb1/P2qPb2/qNQn1p2/2nr4/RnN3B1/2q1K3/1P3PN1/1q6 w - - 0 1 illegal: No proof kernel
1bq3b1/NR2bbP1/2b4b/4N1Pn/1pq1b2Q/P6B/Pk2KNR1/1r3rb1 w - - 0 1 illegal: Other
5n1b/P2N1PP1/nr4P1/nr1k4/4nb2/bRrbB1rR/1K4p1/RN2Q2n w - - 0 1 illegal: No proof kernel
2k2b2/3q4/Nbn2Np1/N1R2P1P/K1Q2RBP/n1br1Prn/3p2rn/3n4 w - - 0 1 illegal: Other
1k3KN1/qB2B3/qnR3P1/rPp1p2n/1B2rb2/Pq1R3b/4Q1P1/2qr3n w - - 0 1 legal: proof: h4 a5 e4 f5 c4 fxe4 c5 b5 b3 g5 hxg5 a4 c6 b4 Rh5 a3 Nc3 bxc3 Rh1 dxc6 Qc2 c5 Qb1 c4 Qb2 axb2 Ke2 Kd7 Ke3 b1R Kd4 h5 Ke5 c5 f4 Kc7 d4 h4 d5 c2 f5 h3 d6+ Kb7 b4 e3 a3 e2 d7 e1Q+ Ne2 c3 Ke6 h2 Kf7 e5 f6 Qa5 d8Q Bh6 Nd4 Qd1 Nc6 Nd7 Bd2 Nb6 Ne7 Kb8 Ba6 Rc1 Rf1 h1N Qd3 Bh3 g6 Qe2 Rb1 Rd1 Rb3 Be3 Be1 Rh4 Bb7 Re4 Rf5 Qf3 Qe2 Bf4 Ke8 Ra7 f7 Nf6+ Kf8 Nh5 Rf6 Qa4 Ng8 Qd7 Bc8 Ra5 Rc6 Qa7 Bb7 Qd3 Bd2 Qda6 b5 c1Q Qg4 c2 Rd3 Qb1 Bb4 c1Q Qe2 Qc3 Ke7 Bf5 f8B Qcc1 Kf7 Bd7 Be7 Qb3+ Kf8 Bh3
4r1B1/1r1k1b2/qQ2bPn1/pP2P2n/p3NbqR/2Kr2Bq/2Rr3P/1R6 w - - 0 1 legal: proof: c4 b5 e4 h5 g4 hxg4 d4 d5 a4 bxa4 Nd2 e5 cxd5 exd4 e5 f5 Ne4 fxe4 Kd2 g5 f4 c5 b4 a5 f5 c4 b5 d3 d6 c3+ Ke3 c2 Kd4 g3 Nf3 g2 Bf4 g1Q+ Kc3 c1R+ Qc2 g4 Nd4 e3 Bg5 e2 Kd2 e1R Bh6 g3 Be3 g2 Qc6+ Qd7 Ne6 Nf6 Qb7 Rh3 Bc5 Nc6 Qa7 Nh5 f6 Bh6+ Ng5 Ne7 Qb6 Ng6 Bd4 Rc7 Qc5 Rb7 Be3 Re2+ Kc3 d2 Rc1 d1B Rc2 Rd2 Ne4 Bf4 Qa7 Rf3 Qb6 Qh3 Be2 Be6 Bc4 Kd7 Bb3 Qf2 Rf1 Be2 Rb1 g1Q Bd5 Qfg2 Ba2 Bd3 Bf2 Qgg4 Bg3 Re8 Bd5 Bf5 Bf7 Be6 Bg8 Bdc4+ Qe3 Kc8 d7+ Kc7 d8R Qf2 Qd3 Qa7 Qe3 Qa6 Rd7+ Kc8 Rh7 Bf7 Rh8 Kd7 Rh7 Be6 Rh6 Rff2 Qb6 Rd6 Rh8 Rfd2 Rh6 Ng7 Rh4 Nh5 Rcb2 R6d4 Rc2 R4d3+
5r1k/1Pnn3P/1B1P2pb/P3qR2/1nq1b3/3Npq1R/2r1b3/Kn2RQ1N w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 h5 g4 hxg4 e5 a4 e6 fxe6 Nf3 e5 Ng1 e4 b4 b6 Bc4 b5 Bb3 axb3 a4 b2 a5 Nf6 Qb3 Ng8 Qa4 bxa4 Kd1 Kf7 Kc2 c5 f4 e5 h4 c4 d4 c3 f5 e3 f6 e2 h5 e1N+ Kd1 c2+ Kd2 a3 Kc3 g3 b5 g6 b6 g2 d6 e4 d7 e3 h6 a2 h7 Na6 d5 Nc7 b7 Nd3 d6 Bh6 Rh3 Nb4 Na3 b1B Kb2 Qf8 d8Q Bg4 Rh2 Be2 Nc4 Rc8 Nh3 g1N Nf2 Nf3 Rh3 Nd2 Nh1 Ne4 Kb3 Nc3 Ba3 c1Q Nb2 Be4 Nd3 Nb1 Bb2 Qc5 Bd4 Qc4+ Kb2 Nc3 Re1 Nb1 Bc3 a1Q+ Kc1 Qa4 Kb2 Qab5 Ka1 Qh5 Be5 Qe8 Bb2 Qee5 Bd4 Qf3 Qd7+ Kf8 f7 Kg7 Qb5 Nf6 f8R Nd7 Rf5 Rhf8 Qa6 Kh8 Qb5 Nc3 Bb6 Nb1+ Nb2 Qcc3 Rf6 Ncd5 Nf2 Bd1 Qf1 Be2 Rf5 Rc4 Nh1 Nc7 Rf4 Qcd4 Rf5 Rc3 Nd3 Qc4 Bc5 Rc2+ Bd4 Rc3 Bb6 Rc2+
r2bQb1N/PRb3R1/qR6/bpB2P1b/8/n1K1nnPp/4PkB1/2b2r2 w - - 0 1 illegal: No possible last move
bNq2n2/1qn3pk/1K2pP1P/3bB1Qn/q2rP1N1/N6q/R1RnP2r/8 w - - 0 1 illegal: No possible last move
Bq3n2/n2bkn2/P1nrpr2/RK4R1/P2Q2nP/3NB3/1n1P2p1/nnB5 w - - 0 1 illegal: No possible last move
1R1nBb2/5P2/2Kn1nBb/1QNN2P1/b1bP2r1/N2bp3/r2pP3/b1n4k w - - 0 1 legal: proof: g4 f5 h4 fxg4 b4 a5 Ba3 axb4 Bc1 g3 Bb2 g5 Bc3 c5 Be5 c4 Bb2 g4 Ba3 Qa5 Bc1 Qg5 hxg5 Bg7 Rh3 Bh6 Rh1 Bf8 d4 b3 a4 d6 Ba3 Ra6 Bc5 Nc6 c3 Na5 Ra2 Ra7 Rd2 Ra8 Rd3 cxd3 c4 Nc6 Bb6 Ra7 c5 Nb8 c6 Ra8 Bc5 dxc5 Kd2 Kf7 Kc3 Ke6 Kc4 Kf5 Kd5 Kf4 a5 h5 c7 e5 f3 b5 a6 b4 a7 h4 Qc2 h3 Nd2 g2 Qa2 Kg3 f4 e4 f5 b2 f6 b1N f7 b3 Qa6 e3 Ngf3 g1B Nh4 h2 Qb6 c4 Ndf3 c3 Qb4 c2 Nd2 c1N Qb5 b2 Qa6 Bf2 Qb6 Be1 Nc4 Na3 Qb4 b1B Qe7 Nf6+ Kc5 Ba6 c8B Bc3 Kd6 d2 Bf5 Bh6 Kc7 Nc6 Na5 Bc4 Qe6 Nd8 Ng2 Ba1 Qd7 Bbd3 Nf4 Nb5+ Kb6 Nd6 Bg2 Kf2 Ne6 g3 Bc6 g2 Bg6 g1B Nc5 Rh7 Ba4 Kg2 Qb5 Bf2 Rf1 h1B Kc7 Bg3 Kb6 Na2 Rb1 Nc1 Rb4 Kh2 Rb3 Bc6 Kc7 Rb8 a8N Kh1 Nb6 Ra8 Nd5 Rh8 Rb1 Re8 Rb3 Re4 Rb4 Rg4 Rb1 Ba2 Nc4 Bh2 Na3 Bac4 Qa6 Bg3 Rb8 Be8 Bd7 Bf4 Qb5 Ra5 Nb1 Ra2 Na3 Bg3 Bdf5 Bc6 Bd7 Be5 Be8 Bd7 Qa5 Ba4 Qb5 Nfe4 Qa6 Beg7 Qb5 Bf8 Kd7 Nf6+ Kc7 N8b7 Kc6 Nd8+
1q6/1Rnp1b2/r4B2/KPr1P3/b1q2R2/2P1QnN1/P1pb1pNk/n2r1R2 w - - 0 1 legal: proof: f4 b5 g4 c5 d4 cxd4 f5 h5 gxh5 b4 f6 exf6 Qd2 f5 Qd1 f4 c3 a5 Be3 b3 Qc2 a4 Bg2 Ne7 Bd5 Ng8 Bc1 bxc2 b4 Nc6 Be6 Nb8 Bb3 axb3 Kd2 Ke7 h4 Kd6 e4 Ke5 h6 g5 h5 f5 h7 g4 h6 g3 Rh5 g2 Nh3 g1N Bb2 f3 Nf4 f2 Rh1 f1B Rh5 d3 Ba3 b2 Rh2 Ra6 Rg2 Nc6 Rf2 Na5 Rg2 Nb3+ Ke3 d2 Ne2 d1R Nf4 Bb7 Nd2 b1Q Bc1 Nf6 Rg4 Ne8 Ng2 Bd5 Rf4 Bb5 Nf1 Qh4 Ng3 Bf7 Ba3 Rg8 h8R Ba4 h7 Rg5 Rg8 Nc7 h8Q+ Bg7 Rb8 Nf3 Rb7 Rh5 Qa8 Bh6 Qa7 Qb2 Rb1 Na1 Ke2 Qb3 Qe3 Qd8 b5 Qb8 Be7 Qc4+ Kf2 Rd5 Rf1 Rd1 Rh4 f4 Bf6+ Ke6 Rg4 Rc5 e5 Ne1 Qe2 f3 Rf4 Bg5 Ke3 f2 Qd3 Nf3 Ke2 Qd8 Rg4 Bd2 Rf4 Qb3 Qe3 Qb8 Kd3 Kd5 Rb4 Ke6 Nh5 Kf5 Ng3+ Kg6 Rf4 Qb4 Bh8 Kg5 Bf6+ Kh6 Bh8 Qb3 Bg7+ Kg5 Bh8 Qe6 Bg7 Rd5+ Kc4 Rc5+ Kb4 Qd5 Ne4+ Kh5 Bf6 Qd3 Rf5+ Kg4 Rf4+ Kh3 Ng3 Qe2 Bd8 Kh2 Bf6 Re6 Ka5 Qc4 Bh4 Rb6 Bf6 Ra6#
1N3KQ1/N2P1b1q/2Np1r2/1Ppb2rn/7n/prP2PqR/1k1B3n/R1n5 w - - 0 1 legal: proof: g4 f5 h4 fxg4 a3 b5 a4 bxa4 Rh2 d5 Nf3 g5 Rh1 g3 Ng1 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qd6 Rh4 Qd7 Rh1 Qd8 c3 d4 Bg2 Nd7 Be4 Nb8 Bc2 d3 Nf3 dxc2 d4 Kf7 d5 Bf5 d6 Bd7 Ng1 Bc8 d7 Kf8 Qd6 exd6 Rh3 Kf7 Rh1 Ke7 Kd2 Ke6 Kd3 Kd5 b4 c5 g6 a5 e3 h5 b5 h4 g7 g2 Nf3 g1Q Ra2 h3 Rh2 g3 Bd2 c1N+ Kc2 Kc4 e4 a3 e5 g2 e6 a4 e7 Rh5 e8N Nc6 Nc7 Rg5 Na6 Qe7 Nh4 Ne5 Nf5 Nf3 Nh4 Nf6 Be3 Bb7 g8Q+ Bd5 Bf4 Qh7+ Nf5 Nh4 Ra1 a2 Nb8 a3 Bd2 Bf7 Rh1 Nh5 Rh2 Nd3 Ne7 Qe1 Nec6 g1N Rh1 Ngf3 Na7 Qe5 Rh2 Qg3 Rh1 Kd5 Kb3 h2 Re1 h1B Re3 Nh2 Rf3 Qg1 Rh3 Be4 f3 Qg3 Nbc6 Rf8 Nb8 Ke6 Kc4 Nc1 Bf4 Ba8 Nd2 Bb7 Nb3 Be4 Rb1 a1R Na5 Ra2 Ra1 Rb2 Bd2 Rb3 Qh8 Be8 Qg7 Rf6 Qg8+ Ke5 Be1 Kf4 N5c6 Ke3 Bd2+ Ke2 Nb4 Kd1 N4c6 Bf5 Kd5 Kc2 Be3 Kb2 Bf4 Rf8 Bd2 Be4+ Ke6 Bf7+ Ke7 Bed5 Qg6 Rg8 Qe6 R8g6 Kf8 Rf6 Qg4 Re5 Qg8 Rg5
5q2/qP1q1k2/2PP1r2/5n1K/b1pnp1Br/2NbpP1N/1Q4q1/R1RnN3 w - - 0 1 illegal: No possible last move
7r/Nr6/bqQ1bp2/pPP3n1/n1K1p3/N3PPbB/pR1br3/k2B2B1 w - - 0 1 legal: proof: b4 c5 a4 b5 c4 bxa4 d4 cxd4 h4 g5 Rh2 gxh4 Rh1 d5 Ra2 Kd7 Rc2 Ke6 Rc3 dxc3 Qxd5+ Kf6 Qd4+ Kf5 Qd7+ Kf6 g4 Ke5 g5 a5 c5 h5 g6 a3 b5 c2 Kd2 h3 Kd3 h2 g7 f6 Bd2 c1B Kc4 a2 Qg4 h4 Qg2 h3 Qf3 Ba6 Qc6 Ra7 Qa8 Nd7 Kd3 Qb6 Qb7 Nh6 g8B Nf7 Bh7 Ng5 Qg2 Rb7 Be3 Bd2 Bg8 e6 Kc4 Bd6 Nf3+ Ke4 Qg1 Bg3 Qg2 e5 Rg1 h1R Na3 Rh2 Qh1 Rg2 Nd4 h2 Be6 Qd6 Bh3 Nb6+ Kb3 Qd8 Nc6 Na4 Na7 Qc7 Kc4 Qb6 Bf4 Qd6 e3 Qb6 Kb3 Kd5 Be2 Ke4 Bd1 Kd3 f3 Re2 Rg2 e4 Qg1 h1B Qh2 Rhb8 Rf2 Rh8 Bc7 Bg2 Bb8 Bh4 Qc7 Bg3 Qc6 Bf1 Be6 Bh3 Be5 Bh4 Bh2 Bg3 Bg1 Bg4 Bd5 Be6 Rh2 Bb4 Rg2 Kd2 Kc4 Kc1 Rh2 Kb2 Rf2 Bd7 Be6 Ka1 Bh3 Be6+ Kd4 Re1 Rd2 Re2 Rb2 Bc8 Kd5 Bd2 Kc4 Be6+
nb4n1/p6P/q1RNpPpp/6Q1/nPRp1b2/B1n1rk2/B1r4P/3R2K1 w - - 0 1 legal: proof: b4 b5 a4 bxa4 e4 c5 d4 cxd4 Nd2 f5 Nb3 fxe4 g4 axb3 g5 h6 g6 d6 Ba3 Be6 Bb2 Nf6 Ba3 Bg8 Bc1 Bh7 gxh7 Ng8 c4 Kf7 f4 Ke6 Kf2 Kf5 c5 d5 c6 e3+ Kg2 Ke4 f5 d3 f6 g6 c7 d2 c8R e2 Ba3 e1B Qh5 d1N Rcc1 d4 Rc3 b2 Rf3 b1N Rd3 Qa5 Bb2 Nd7 Rc3 Re8 Bc4 Bd2 Rb3 Bf4 Rc3 Qa6 Ba2 Nb6 Qg5 Na8 Rc6 Nbc3 Nf3 Na4 Ne5 Ndc3 Kg1 Rc8 Nc4 Kf3 Rc1 e6 Na5 B8d6 Nc4 Bb8 Nd6 Rc7 Rc4 Rc5 Ba3 Re5 Rc6 Re3 Rd1 Ne7 Rc1 Rc8 Rc4 Ng8 Rc6 Nd1 R1c5 Ndc3 Rc4 Ke2 Kg2 Rc7 Rd1 Rc8 Kh1 Kf3 Kg1 Qa5 Ra6 Nb1 Rc3 Rc5 Rc6 Qa6 Rcd3 Rc1 Rdc3 Rc2 R3c4 Nbc3
Qbn1bK2/1bNn4/1pP3R1/n1r3B1/1rnBbqB1/PPnb1r2/6P1/k1N5 w - - 0 1 legal: proof: h4 c5 e4 g5 d4 gxh4 e5 cxd4 e6 a5 b3 a4 Nd2 a3 Rb1 fxe6 Ba6 e5 Bf1 e4 Rb2 axb2 Ke2 Kf7 c4 Ke6 f4 b1B a3 d5 f5+ Ke5 f6 h5 f7 e3 Kf3 e2 c5 e1R Rh3 d3 Rh1 Kd4 Kf4 Kc3 Kg5 e5+ Kg6 e4 Qg4 e3 Qe4 d4 Qf4 b6 Nh3 e2 Qc7 Bb7 Nf3 Ra4 Bh6 Kb2 Qh2 Ka1 Bc1 Bd6 Kg7 d2 f8B d1B Nf4 d3 Nd5 h3 Nc7 h4 Nd4 d2 Qg1 h2 Nf5 h3 Nd4 B1e4 Ndb5 Bdc2 Nd4 d1B Nce6 Nf6 Nf3 Bcd3 Nfg5 Rb4 Kf7 Nc6 Bh6 Qb8 Nf3 Na5 c6 Rf8+ Kg7 B1c2 Bcg5 Rc1 Ned4 e1N Nh4 Nf3 Bd2 Ne5 Bhf4 Nec4 Nhf3 Bg6 Be5 Be8 Qe3 Bc7 Rg1 h1N Be2 h2 Ne1 Nf2 Rh1 N2e4 Ne6+ Nc3 Bd4 Bb1 Rf1 h1N Bg4 Ng3 Rf2 Be5 Nc7 Nge4 Qh3 Bg3 Qh8 Ned6 Bg5 Nc8 Re2 Bh2 Re6 Be4 Nd3 Bc2 Nf4 Bcd3 Ne2 Rc2 Nc1 Bg3 Nd5 Qf4 Rd6 Qe3 Re6 Bb8 Nc7 Qf4 Rd6 Nd7 Qg8 Rf5 Rg6 Nf6 Kf8 Rf2 Qd5 Rf3 Qb5 Rd5 Qa6 Rc5 Qa8 Nd7+
N1r2N1q/Pkb1p1KP/Rq2P1N1/Q3B3/q5Br/r1r5/rn3P2/n1bb1q2 w - - 0 1 illegal: No possible last move
3r3R/2rbR1PK/4R1Np/k1rnQ1q1/1n1n1b2/1qB2r1P/1bP2nrP/1N6 w - - 0 1 illegal: Other
3RN2r/bkp3b1/1P4KP/1bBbq3/RPRn1rn1/2n4n/2PQn1r1/2q2N2 w - - 0 1 illegal: Other
rr1B4/2bpRKPk/1r3b1N/1N2rPb1/n1q4n/6P1/2rP1rRn/1bR2Q2 w - - 0 1 illegal: Other
b4Bn1/qpb3R1/Nb2P3/b2bPn2/bPR1b2Q/PrK4b/1BB5/2b2r1k w - - 0 1 illegal: Other
1Nb1Qn2/2BP3R/3b2pP/bb4P1/2b4q/1r1n1Kqr/Pprkn3/R1N4R w - - 0 1 illegal: No possible last move, all moves rejected
4Bb1b/r1qp3k/B2PNrqn/1QPRr1nb/5pP1/2qR2r1/P4K1B/3r4 w - - 0 1 illegal: No proof kernel
nr1rb3/2R2NK1/1QR3P1/Rbp2qp1/1qr2nn1/Pbb1P1Pb/4B3/1k5N w - - 0 1 illegal: Other
nk2BN1b/2N1q3/2P1r2n/2q1p2P/R2p3P/1b1qPb1q/2R1r1R1/Q1Kr2q1 w - - 0 1 illegal: Other
1rB2b2/bb1P4/RN2qN2/rp2P1p1/1n1QPK2/1P3n1q/2bnN1r1/1R2b2k w - - 0 1 illegal: Other
2RNb2r/KBn2P1p/pr1r1k2/4rP1q/3P1q2/r2b2n1/P1QRq2b/2R1B3 w - - 0 1 illegal: Other
1bbr2q1/pQ1b2rn/NB1P1KRp/1Pr3P1/2Nkq3/3bN1b1/P7/nn1R4 w - - 0 1 legal: proof: h4 d5 f4 b5 c4 dxc4 h5 e5 h6 exf4 e3 c3 Nf3 c2 Bc4 bxc4 Ng1 gxh6 Qg4 h5 Qd1 h4 Ke2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 f5 g4 h3 d3 h6 b3 f3 e4 h2 g5 f2 Ne2 f1B Na3 f4 Bd2 c1B Rg1 h1Q Nb5 c3 Na3 f3 Nd4 c2 Rg4 f2 Rg2 Rh7 Nb1 Rg7 Na3 Ne7 Rb1 Nd7+ Ke6 Nd5 e5 Nc3 Qe1 Bd6 Rg4 Bh3 Nf5 f1B Nc4 Qe4 Nfe3 Kd4 b4 c5 b5 Bb8 Qg3 Ba3 Rd1 c1R Qf3 Nb1 Ba5 Qg8+ Qf7 Rc2 Bb6 Nf8+ Kf6 Bb2 Rg1 Bhd7 e6 Bc3 e7 Be1 e8N Beg3 Nc7 Be2 Nd2 Rc1 Na6 Rc3 Bc7 c4 Rgf1 Rc1 Ba5 c3 Ndc4 c2 Bd8 Kc3 d4 Bd3 d5 Kd4 Rde1 Rd1 d6 c1N Qe7 Nb3 Rf3 Rc1 Rd1 Na1 Rff1 Bh3 Qb7 Bhd7 Rf5 Rc2 Re5 Rc3 Re6 Rc1 Nd2 Rc2 Bb6+ Rc5 Ndc4 Bc7 Qb8 Bb7 Qc8 Bdc6 Qd7 Rd8 Qf7 Bb8 Ke7 Qd5 Rg6 Bc8 Kf6 Qe4 Qc7 B6d7 Qb7 Nh7#
rkB2b1K/1nRR1RpP/1P1b1b2/2P1NbQ1/p4b2/Pb1N1n2/q7/r4rb1 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 c4 h5 d5 hxg4 d6 b4 Bg5 cxd6 Be3 d5 Bd2 d4 Bc3 bxc3 Ke2 e5 f4 d5 b4 Kd7 h4 Kc7 a3 a5 c5 e3 Kd3 e2 h5 e1B f5 a4 f6 e4+ Kc2 g3 h6 e3 Kd3 g2 b5 e2 f7 c2 h7 c1B Nh3 g1B Qc2 Nh6 Qd1 Bg3 Nd2 e1B Nf3 Nc6 b6+ Kb8 Nd2 Bgd6 Nf3 Bc3 Qd2 Na5 Qg5 Nb7 Be2 Nf5 Nf2 Bcf4 Re1 Nh4 Ne5 Nf3 Rh6 Bg4 Rd1 Qf6 Bf1 Qe6 Bh3 Bf5+ Ke2 Qe8 Nd3 Qb5 Re6 Qb1 Re7 Ba1 Rc7 Qa2+ Kf1 Bb2 Kg2 Rg8 Bg4 Bc3+ Kh3 Ba1 Nf2 d3 Rd2 d4 Rd1 d2 Nfd3 Ne1 Kh4 Nf3+ Kh5 Rh8 Rb1 d1B Rb4 Be4 Bc8 Bf5 Rb2 Bb3 Rd2 Bd7 Kg6 Bc3 Ne1 d3 Rd1 d2 N1d3 Bfe7 f8R Bf5+ Kh5 Bcd4 Rf6 Bf8 Rff7 Bg4+ Kg6 Bc3 Rf1 d1R Rfd7 Ra1 Rf2 Bfe7 Rf1 Re8 Rf2 Bf8 Rf1 Re6+ Kf7 Bf5 Kg8 Rh6+ Kh8 Rh2 Rd1 Rf2 Rf7 Rf1 Nb4 Bde7 Rdd7 Bd6 Nbd3 Bb2 Ng4 Bf6 Nge5 Bg6 Qh4 Be4 Qg5 Bf5
qn1r3k/1qrBr3/6bN/1n1p2KR/1P1P3N/b2RP1np/N3q2P/2n1Q1b1 w - - 1 2 legal: proof: g4 b5 a4 bxa4 c4 f5 b3 fxg4 Ba3 d5 Bb4 dxc4 Bd6 exd6 f4 Kf7 Kf2 a5 Ke3 h5 d4 c5 f5 g5 f6 c3 Ra3 c2 Qc1 g3 Qe1 c1N Qf2 h4 Qg2 c4 Qe4 c3 Nh3 g2 Nd2 g1N Nf4 c2 Nh5 g4 Kf4 g3 e3 h3 Kg5 d5 Qg2 Rh7 Bc4 Qd7 Qe2 g2 Qd1 Nge2 Rg1 Ng3 Qe2 Qb7 Ng7 Ne7 Ba6 Kg8 f7+ Kh8 Bc4 Bf5 Qf2 Nec6 Qf4 Na7 Nb1 Nb5 Kf6 Bg6 Nf5 Bc5 f8N Re7 Rf1 g1B Qf2 Bb4 Nh6 Bd6 Ra2 a3 Kg5 a4 Qe1 Bc5 Ra1 a2 Rf5 a3 Nc3 Bb4 Rb1 a1Q Na2 Qb2 Be2 Bc5 Bg4 Bd6 Re5 Bb4 Bd7 Bc5 Nc3 a2 Ra1 Ba3 b4 Ra6 Rb1 a1Q Na2 Rc6 Rf5 Rc8 Re5 Rd8 Rf5 Qc3 Rb3 Qd2 Rd3 Qe2 Re5 Nb3 Rf5 c1R Re5 Rc7 Rf5 Bh7 Re5 Nc1 Ng6+ Kg7 Nh4 Kh8 Kf4 Bg6 Rh5 Qc3 Kg5 Qcc6 Qd1 Qa8 Qe1 Qcb7
1k1B2Qr/3pbr1r/P2P1R1q/1b2q1qr/4NP1n/p6b/PnN4n/1K2RR2 w - - 1 2 illegal: Other
qR3nn1/1b3P2/q1Qp1bk1/1pr1Pb2/8/RPN2PrK/nr1NnqB1/6R1 w - - 0 1 illegal: Other
nb1R4/k3rB1p/1nb1PK2/3bPN2/2b4P/P1QR1prb/1b1R1r2/1qBn4 w - - 0 1 illegal: Other
3b3r/1r1pP2r/K1B2n1R/2bpB3/P2n1RnB/3bQ1qb/3PbPnN/6k1 w - - 0 1 illegal: No proof kernel
r1K5/1PQ4n/1bbr3P/2pPN1b1/1r2BkN1/1n2Rq2/1bPnR1p1/2b3rR w - - 0 1 legal: proof: g4 d5 e4 dxe4 a4 h5 b3 hxg4 a5 f5 a6 f4 Bb2 bxa6 Bf6 a5 Bh4 a4 Bg3 fxg3 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 g5 Kb5 a5 h4 a3 f4 a4 d4 a2 d5 a3 f5 g2 b4 g3 h5 g4 f6 e3 f7 e2 h6 e1N Nd2 e4 Nb1 Ke5 Qd4+ Kf4 Qc3 e3 Qb3 e2 Rh4 Na6 Kc6 Nf3 b5 e1R b6 Nf6 b7 Nc5 Nc3 Re4 Rb1 a1B Na4 a2 Ba6 Rb4 Nc3 Nh7 Rd1 Nd2 Nb5 Bf6 Nd6 a1B Nc4 Bg5 Qd3 Bb2 Rh2 Ncb3 Nf3 g1R Qc3 g2 Ne3 g3 Ne5 Qe7 Qc5 Qf6+ Qd6 Be7 Bd3 Rd8 f8R Bf5 N3g4 Bg6 Bf5 Be8+ Bd7 Bc1 Rh1 Qf7 Re1 Bef6 Re3 Bh8 Rg8 Qf5 Rg6 Qe4 Re6 Qf3 Nf7+ Be5 Qe7 Beb2 Nfe5 Rd1 Qc5 g1B Re7 g2 Qd6 Bh5 Bf5 Be8+ Qd7 Bf2 Be4 Rg1 Re2 Bb6 Re6 Ra6 Re7 Rda8 Re3 Bh5 Qc8 Bg6 Kd7 c5 Qb8 Be8+ Kc8 Bc7 Re6 Rd6 Re2 Bb6 Re3 Raa4 Qc7 Bc6 Rf6+ Kg3 Rc3 Qd3 Rf2 Qf3 Re3 Kf4 Rfe2 Ra8+
2qk4/B2N1pp1/1rr2n2/Q1b4r/P2Pb1q1/2P2PrB/2R2nN1/Kbr1r2B w - - 0 1 illegal: No proof kernel
K5nQ/2pBbq2/b5rn/nN1N3N/1n1n2Pk/5bpP/b1r2RPP/R3q3 w - - 0 1 illegal: Other
2q1Qbr1/2B1q2b/2P1B1nb/P1p5/1k1Pr3/2bR1p1q/2nNRP1q/K1Bb4 w - - 0 1 illegal: No possible last move
qbK3kq/Rp1q3b/b2Rp1n1/1B2P1q1/r5QR/N2P1nPq/1P1r3N/2b5 w - - 0 2 legal: proof: c4 d5 e4 dxc4 a4 g5 h4 gxh4 d3 f5 a5 f4 a6 Nxa6 Bd2 Nb4 Bc1 Na2 Be3 fxe3 Ke2 Kf7 Kf3 a5 Kf4 h5 Ke5 c5 f4 a4 f5 c3 g3 a3 f6 e6 Qd2 c4 Qc2 e2 Qb3 e1Q Rh3 c2 Qb4 c1Q Qd6 c3 Qd5 c2 Qd6 Ne7 Nf3 Qd7 Ng5+ Kg8 Qc6 Ra4 Qc4 Nc3 Nf7 a2 Na3 Nb5 Qb3 Nd4 Be2 Qc3 Rb1 a1Q Rh1 h3 Ng5 h2 Nc4 h4 Bh5 h3 Be8 Rh5 Rd1 h1Q Na3 h2 Qc4 Qg2 Rg1 Qh3 Rh1 Q1d2 Rbf1 c1B Rf5 Rh6 Nf3 Qg5 f7+ Kh8 Rd1 h1B Nh2 Bf3 Rf1 Bh5 Rf4 Bg6 Rh4 Bh7 Qb3 Rh5 Qd1 Bh6 f8R+ Kg7 Rf6 Kg8 Qe2 Bf8 Rh6 Qa2 Rf4 Rh4 Rf1 Rf4 Qg4 Rf2 Rh4 Rd2 Rd1 Qb5+ Kd6 Bd7 Rh1 Nf3 Rd5 Qh8 Kc7 Ng6 e5 Bc6 Bd7 Bd6+ Kc8 Bb8 Rd6 Qbd5 Rg1 Bb5 Rd1 Ba6 Bb5 Qd4 Re1 Qa7 Re4 Qd5 Rc4 Qa8 Rc3 Rd4 Rc4 Re4 Ra4 Rb4 Ra5 Ra4 Rc6 Qd6 Rb6 Qde7 Rd6 Qf7 Bc6 Bc4 Ra7 Ba6 Bb5 Qd7+
b3r1n1/kN6/2b1q2N/p1KP1n1N/8/Pn1P1rpn/1bbB1RRP/3nq1Q1 w - - 0 1 illegal: Other
1q5n/1QnB2nb/1P1P4/B1rbKrk1/n1BRR1p1/4qqP1/1p2P1Nb/b7 w - - 0 1 illegal: No proof kernel
2rn4/Nb1Q3K/2n1q2q/3Pn1PP/b2pRp2/1br1RP2/2R1N3/1Bq1bn1k w - - 0 1 illegal: No proof kernel
qNR3bK/3q2RR/3P2r1/3r1P2/5B1p/1qq1p1BP/1k1nP1rb/nb1bQ3 w - - 1 2 illegal: No proof kernel
1qn2Bk1/2r1nN2/3qp3/1Qnq3r/2Kbb3/qRRpbP1P/R2PN1Pb/8 w - - 0 1 illegal: No proof kernel
N5n1/2b1RP1p/qRR1P1p1/7P/nr1q2br/KP4b1/1r2Qqr1/1BB1q2k w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bc1 f5 Nc3 fxg4 Nf3 e5 Nb5 d3 Nbd4 exd4 Ng1 Bb7 Kd2 Ba6 Ke1 Bc8 Kd2 Ke7 h4 Ke6 e4 Ke5 c4 Kf4 f3 Kg3 b3 a5 c5 d5 e5 g6 f4 a3 f5 a2 c6 a4 h5 a3 c7 Bd6 f6 Ra4 f7 Qf6 Be2 Kg2 Qc2 g3 Qc4 Qf2 Qb5 Bg4 c8R Bc7 e6 Na6 Qc6 Nc5 Rb1 a1Q Ra8 a2 Kd1 d2 Kc2 d1R Rb2 d3+ Kc3 d2 Qd6 d4+ Kc2 d3+ Kc3 Re1 Qd4 d1Q Ra6 d2 Bd3 Re2 Bb1 Qde1 Nh3 d1Q+ Qd2 Rf4 Rb6 Na4+ Kd3 Rb4 Rc2 Ree4 Rg1+ Kh2 Rc4 g2 Nf4 Qde2+ Kc2 Qad4 Nd5 a1B Rc5 Qa6 Rcc6 Bg3 Rf1 g1R Qe2 Rg2 Nc7 Bc3 Rg1 Bd2 Rf1 Bdf4 Na8 Bc7 Rg1 Bh3 Rf1 Rh4 Rg1 Bg4 Rf1 Nc3 Kb2 Na4+ Ka2 Ne7 Ka3 Rd8 Rg1 Ng8 Rf1 Rd5 Rg1 Rc5 Rf1 Rc2 Rg1 Qed2 Rd1 Qde1 Rd3 Rb2 Rd2 Qdf4 Rd7 Kh1 Re7 Q4d4
rrk3N1/P4b2/2p1b3/Nr1RB1bp/b1P2P2/4qqq1/2nQ1P2/2q1RNnK w - - 0 1 illegal: Other
q1r2Q2/r4nN1/2nN4/1pr1p1R1/q2kb2P/bPr1bBP1/P1bB3K/3B1n2 w - - 0 1 illegal: No possible last move, all moves rejected
3b4/NR1NPq2/r1Pkp2n/4pq1q/bq3nNB/2rb1P2/1bn1PQ1K/4R3 w - - 0 1 illegal: Other
8/r2P1Pp1/k1K4b/Pq5n/q1b2p2/rRQRRBP1/2rqb3/Nn2Bqr1 w - - 0 1 illegal: No possible last move, all moves rejected
5b1R/1r2r3/p2N1R2/b1P2bp1/1BbPnRP1/Pbq1kb2/1n1rB3/3rQ1K1 w - - 0 2 legal: proof: f4 h5 e4 c5 b4 cxb4 g4 h4 e5 d6 Nc3 dxe5 Ne4 exf4 Ng3 hxg3 Bc4 f3 Be2 Kd7 Bf1 Ke8 d4 Kd7 c4 Ke6 h4 f5 h5 b5 h6 g5 c5 Kd5 h7 Ke4 a3 e5 Ne2 g2 Kf2 g1R Bg2 a6 Bf1 b3 Rh2 f4 Be3 b4 Rh6 b2 Rh1 b1R Qd2 b3 Rh4 b2 Ra2 Nc6 Qc3 Na5 Qc1 Nc4 Bh3 Ra7 Ra1 Qa5 Qd1 Bb7 Qb3 Nf6 Qb6 Qc3 Qd8 Rgd1 Qd7 Rd2 Qb5 Rbd1 Bg2 b1B Rh5 Nb2 Qa5 Kd3 Rh6 e4 Qb6 Bd5 Rg6 Re7 Bh1 Bb3 Rh6 Rg8 h8R Rgg7 Qb8 Rb7 Qe5 Rge7 Bg2 B1c2 Bf1 Bb1 Kg1 f2+ Kh1 f3 Bf4 e3 Ra2 Ne4 Ng3+ e2 Rf6 B1c2 Qe6 Bb1 Bc7 Ke3 Ba5 e1B Be2 f1B Bb4 f2 Kh2 Bg2 Nf5+ Kf4 Ra1 f1B Nd6+ Ke3 Kg1 Bf3 Qe5 Bh4 Qg3 B1c2 Qe1 Bg3 Nc8 Bc7 Nd6 Ba5 Ne8 Rc1 Nd6 Ng3 Qd1 Bfe4 Bf3 Bfc4 Be2 Bg2 Rb1 Bf5 Qf1 Ne4 Ra1 Rcc2 Re1 Rd1 Qf2+ Kd2 Rf1 Bh1 Qe1+ Ke3 Rf2 Rcd2 Rf4 Bf3
2N3Rr/6b1/1Bb1Pnp1/bb1r2q1/k2r2n1/1p1B1rP1/P3bPQK/B4bR1 w - - 0 1 illegal: No proof kernel
2Q2rR1/1b1pRPp1/nB5q/1rP1p2n/1kb2PN1/1q1B1nq1/r2P4/R3K1b1 w - - 0 1 illegal: Other
RQ1Rn1n1/1Pb1bb2/2P2P2/p1BN1K1R/2b2qp1/r1n1pkP1/2B5/qb3r2 w - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 a5 fxe4 a6 h5 g3 h4 Nd2 h3 Nc4 bxa6 Ne3 a5 Ng2 hxg2 Bg5 a4 Bd2 Nf6 Bc1 Ng8 Ke2 Kf7 b4 Kf6 h4 Kf5 c4 Kg4 f4 g5 h5 e5 c5 d5 f5 e3 Kd3+ e2 h6 e4+ Kc2 d3+ Kd2 e3+ Kc3 d2 Kd4 a3 Ke5 a2 h7 d4 f6 d3 c6 Be6 b5 Bc4 b6 Qc7+ Ke4 Be7 b7 Na6 Nh3 g1N Qa4 d1B Qb5 e1B Qa4 d2 Qb5 Bdb3 Qa4 d1B Bg2 Bdc2+ Kd4 Qf4+ Be4 Bb1 Bd2 Nc7 Bb4 Ne8 Bc5 Ba5 Qb4 a6 Qb6 Ra7 Qd8 Bc7 Qb8 Bf7 Rh2 Bbc4 Rh1 Qf3 Bc2 Qf4+ Kc3 Kf3 Rh2 Bce6 Kd3 g4 Rh1 Ne2 Rh2 Qb4 Nf4 Nc3 Rh5 Bc4+ Kd4 Qa4 Nd5 Qb4 Bb3 Bc2 Rd1 Bb1 Bc2 a1Q Rd2 Bcd8 Ke5 Bc7+ Kf5 Ra8 Ba7 Qd6 Bc5 Ra7 Kg5 Qf4+ Kh4 a5 Qd8 Nd6 Rg5 Nh6 Nb6 Ra6 Re5 Qe4 Kg5 Qd4 Qc8 Rd8 h8R Qf4+ Kh4 Rd7 Rh5 Rd8 Re8 Ng8 Qa8 Rd7 Rc8 Ne8 Rd1 Qd6 Kg5 Qd4 Kf5 Qd6 Na4 Rb6 Rd5 Rb3 Nb6 Ra3 Qa7 Bcd8 Ra8 Qc7 Rd1 Rd2 Qb8 Rf2 Rd4 Rf1 Rd7 Qd6 Nd5 Bc7 Rd8 Qf4+
bQ1b4/qr3rRK/R1pB3n/2PR2pq/3q1q2/PBP3Pn/1N5p/2qbk3 w - - 1 2 illegal: Other
n3NB2/2qrnn2/2p1PP2/RPb2Nk1/nB3qq1/p2KQp2/P6r/3n1B1b w - - 0 1 illegal: No proof kernel
1n1Q2q1/3N1N1b/P1P1R1nP/6bp/kp2r2B/bb1qr1NP/1p5q/1K3b1R w - - 0 1 illegal: Other
k4bbK/3pPb1Q/1q5n/r1rPnpr1/1P4r1/P4pR1/R4BB1/3q1RNr w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 e5 c5 exf4 Na3 a4 Nb5 b6 Nd4 bxc5 Nb3 axb3 Ba3 c4 Bb2 Ne7 Bc1 Ng8 Kf2 h5 Kf3 c5 Ke4 f5+ Ke5 f3 g4 h3 d4 h2 e4 c3 a3 h4 g5 h3 g6 b2 g7 b1B Bd3 c2 Ne2 c4 Bg5 c1R Bf4 c3 Ra2 c2 Bb5 Rh4 Ra1 Ba2 Ng1 Ba6 Be3 Bf7 Qd2 Rg4 Bf4 Nh6 g8R Qb6 Qc3 Kd8 Bg3 Nc6+ Kf6 Kc8 e5 Kb8 e6+ Ne5 Bf1 Bc4 Bg2 Ra5 Bf2 Ka8 Ra2 Re1 Qe3 c1R Qg5 Ree4 Qg6 Rg5 Qh7 Reg4 Rg7 Bd5 Rg8 Rcc5 Rg6 Be7+ Kg7 Bf8+ Kh8 Bg8 e7 Bc4 Ne2 Bcf7 Rf1 h1Q d5 h2 Rg7 Qg1 Rg6 h1R Rg7 Qh2 Ng1 Qf4 Rg6 Qc1 Rg7 Qd1 Rg6 Rgh5 Rg5 Rgh4 Rg4 Rg5 Rg3 Rhg4
K2bN3/P1p1br2/1Q1bp1n1/N2rRBb1/5Bqn/B1P1Pb2/k4pqP/3r4 w - - 1 2 legal: proof: b4 a5 f4 axb4 a4 h5 g4 hxg4 c3 d5 Kf2 d4 Ra2 d3 Rc2 dxc2 Ke3 Qd7 f5 Qxf5 Kd4 Qc5+ Kd3 Qf2 Kc4 Kd7 Kb5 Kd6 d4 Kd5 a5 f5 a6 g5 a7 b3 Bb2 c1B Ba3 g3 Bb2 g4 Qd3 e6 Ba1 f4 Nf3 g2 Ka5 g1B Bh3 b5 Qh7 Kc4 d5 g3 d6 g2 d7 b2 d8B Kb3 Qc2+ Ka2 Qd2 b4 Bf5 b3 Qd4 Bd6 Qe3 Nd7 Na3 b1Q Ne1 f3 Bf6 b2 Nac2 Nf8 Bg4 Rh7 Bh4 Ne7 Qc5 Bg5 Nd4 Qf5 Nc6 b1R Bb2 Rf7 Bg3 Nfg6 Bf4 Rd1 Ba3 Bb7 Nc2 Nh4 N2d4 Rd8 Nb5 Neg6 Qb6 Rdd7 Bh3 Bd8 Bg4 Ba8 Ka6 Qh5 Bf5 Qg4 Na5 Qfg3 Nb3 Be3 Re1 g1B Na5 B6e7 Nd6 Qg2 Ne8 R7d5 Rf1 B3c5 e3 Bf2 Rg1 Bg3 Rf1 Bg5 Rg1 Bce7 Rf1 Ra1 Rb1 f2 Rb5 Rad1 Rc5 R5d2 Rb5 Bf3 Re5 Rd5 Kb7 Bd6 Ka8 Bge7 Bg5 Bf4 Bf6 Bh6 Bg5 Bc5 Bf4 Bhg5 Nb7 Bb4 Na5 Bbd6
1RB1r2b/Qr1p1qBp/2P1q3/2p2P1k/4B1r1/1Pn1nbr1/R1KP2qr/6N1 w - - 0 1 illegal: No proof kernel
6n1/nK3p2/1br1BPR1/P3qRpb/r7/2pq1qPP/1N1N1k2/b1QqR2r w - - 1 2 legal: proof: d4 d5 c4 dxc4 b4 e5 g3 h5 b5 h4 d5 h3 Be3 a6 Qb3 axb5 Bd4 exd4 Qf3 b4 Qg2 hxg2 Kd2 Kd7 e4 Kd6 a4 Kc5 f4 b5 d6 g5 e5 d3 Ke3 b3 Ke4 c3 d7 b4 f5 b2 e6 c2 e7 c1R e8R b3 Ne2 g1B Na3 b1Q Ke5 d2 Re7 d1Q Re8 b2 Re7 Qbd3 Bh3 b1Q Re6 Qe7 d8Q Qb7 Nf4 Qbf3 Nb1 Kc4 Qd7 Bb6 Re1 c5 Nd2+ Kc3 Qd6 c4 Qc5 Qe8 Qc6 Bfc5 Ra2 Bd4+ Kd6 Ra7 Qc5 Nc6 Rg6 Ra6 f6 Na7 Rb2 Bg4 Rb5 Bh5 Be6 Qb8+ Kd7 Qe5 a5 Ra1 Qc7 Ra4 Qc5 Kc2 Qa3 Ba1+ Rd5 Nc6 Kc8 Na7+ Kb7 Rh7 Qc5 c3 Qe3 Bc7 Qg1 Rc6 Qf1 Bb6 Qh1 Qde4 Nd3 Qc4 Nb2 Qcd4 Nbc4 Kd3 Rb5 Qde4 Qf1+ Qee2 Nb2+ Ke3 Qh1 Kf2 Rc5 Qef4 Rf5 Qfd3 Qe4 Qdf3 Qb1 Qed3 Qc1 Qe5 Ndc4 Bg4 Nd2 Rh4 Bb3 Bh5 Be6 Rhb4 h3 Rb5 Nbc4 Rb1 Nb2 Bg4 Rh1 Q1e2 Qd1 Bh5 Qc2 Rg1 Qb1 Qd1 Qc1 Rg2 Rg1 Rh2 Re1 Rh1
1Nn5/B2pQp1R/1b2N1bq/P1rPb2n/1Pn3bB/4NP2/2q1r1p1/K5rk w - - 1 2 illegal: No possible last move
kn4N1/nb3PP1/2Q1q3/b1Pr3q/1Rpbrr1q/3R2p1/2Pp3B/2bBB1K1 w - - 0 1 illegal: Other
1B2rq2/P4p1r/np1K3b/2RnQR2/P1bRB3/kPnqP1p1/qNr5/7r w - - 0 1 illegal: Other
BnNK4/p4qp1/R1q1br2/P2pB3/6Q1/krPn1Nn1/P3b1P1/1bbN1q2 w - - 0 2 illegal: Other
n1R2b1B/1N3pPb/2Pb2k1/1bPrQ2R/1p5b/1P3qn1/B1Kbp1q1/4rR2 w - - 0 1 illegal: Other
4q3/1PBb1pnr/4kr2/P5rp/KNRQnPpn/4nP2/6nr/2bNNB2 w - - 0 1 illegal: Other
2r5/pp2bKB1/r2Q2R1/k1n1qr1R/pb3rbP/1P1b2BP/N4P2/1nr4B w - - 0 1 illegal: Other
5bK1/r1P5/Qn1pR3/BN1B2rb/2bPn1kP/1nrqp3/1n1N2pP/1Br5 w - - 0 1 illegal: Other
1nq2B1Q/3p4/RN3b1N/4pb1k/2nN1P2/1PPP3p/1r3Rnb/1rKnbr2 w - - 0 1 illegal: No possible last move, all moves rejected
1r6/k2prpN1/Pbn1BP2/2PBB3/3pn1Nq/rQ3q1b/1R1Pn2p/2b4K w - - 0 2 legal: proof: e4 a5 Ke2 g5 b4 axb4 h4 gxh4 a4 b5 e5 c5 Kd3 Ra6 Ra3 Re6 Rc3 Rxe5 Rc4 Re2 Rd4 cxd4 g4 e5 f4 h5 c4 e4+ Kc2 b3+ Kb2 b4 f5 e3 g5 h3 a5 h4 a6 h2 g6 h3 g7 Qh4 Bg2 Kd8 Nc3 Kc7 Qe1 Kb6 Bf3 Bb7 Nd1 Ka7 Qg3 Nf6 g8B Ne4 f6 Nc6 Bh7 Be7 Bg6 Rb8 Bf5 Bd6 Kb1 b2 Kc2 b1N Kd3 b3 Ba3 b2 Be6 Nbc3 Nf2 b1R Ng4 Rb3 Bb4 Re1 Ne2 Ra3 Nf4 e2 Nh5 Ba8 Rf1 h1Q Ng7 h2 Ba5 Bc5 Bc7 Bb6 Bg2 Bb7 Rf5 Ba8 Rb5 Qf1 Qe3 Qf3 Bd6 Rb1 Rb4 e1B Rb2 Bg3 Be5 Re1 Bh1 Qg2 Qf3 Bf4 Qd1 Ne2+ Qb3 Bh6 Nf5 Bf8 Ng7 Bb4 c5 Qf3+ Kc2 Rf1 Bg2 Rf2 Kd1 Bb7 Ke1 Bc3 Rc2 Bb2 Bh1 Bc1 Rb2 Qfh3 Bf3 Rg2+ Kf1 Rg3+ Bg2 Re3 Bd5 Q3g3 Bh3 Qf4+ Kg2 Qfg3+ Kh1 Qf3+ Bg2 Ng5 Nh6 Qff4 Bh3 Na5 Bc7 Re7 Bf3 Bd5 Bg4 Nc6 Be5 Be6 Bd5 Ne4 Bh3 Bf5 Bg4 Bg6 Bge6 Bf5 Qd3 Qff2 Qb3 Bh3 Ng4 Qf3+
2Bn2Rb/3qp1Rn/1P3br1/P2b1pQp/PK3Pr1/2N1q3/p2R2r1/1nk3N1 w - - 0 1 illegal: Other
4N1rr/q5P1/2P2pqp/p3nn2/5P2/K1Bb2bR/2NqpQPR/1k1r1Rb1 w - - 0 1 illegal: Other
8/1Br3P1/2b1P2R/rrp1R1pr/B7/Qnpq2p1/P1Pb2nr/1Nn2kBK w - - 0 1 illegal: Other
4b1rB/2b1ppnP/5b1R/NpP1qr2/1rnp1QBN/2kP3b/B3P2b/5K2 w - - 0 2 illegal: No possible last move
rb6/p1BnPN1k/2np4/P3p1qp/B3K1n1/n3Rn2/rPb1B1qP/4Q2R w - - 0 2 legal: proof: d4 g5 f4 gxf4 c4 b5 d5 bxc4 e4 Bb7 e5 Ba6 d6 Bc8 Nd2 Na6 Ndf3 exd6 e6 Nb8 Ne5 dxe5 Kf2 f5 Kf3 h5 a4 c5 g4 c3 g5 c2 g6 c4 g7 c3 Qd3 Bd6 e7 Kf7 Nh3 Kg6 Qa6 Nf6 g8B Nc6 Bg2 Bb8 Bb3 Qg8 Qb7 Ng4 Be3 c1N Be6 c2 Bg1 Rh6 Qb3 Nd3 Qb7 c1Q Bf1 Nc5 Bd5 Kh7 Kg2 f3+ Kg3 f4+ Kh4 f2 Ba6 f1N Qb4 f3 Be6 f2 Qe1 Nfe3 Kg3 f1N+ Kf3 Nc2 Bb3 Qcg5 Be2 Na3 Rc1 Ba6 Rc3 Bd3 Bd4 Bg6 Re3 Bc2 Bc3 Rg6 Ba5 d6 Bc7 Nd7 a5 Nd2+ Kg3 Rf6 Ba4 Rf4 Kg2 Nf3 Kg3 Rd4 Kg2 Rd1 Kg3 Qh6 Kg2 Ra1 Ng5+ Kg6 Nf7 Qg5 Kh3 Ra2 Kg3 Kh7 Kg2 Nh4+ Kg3 Ng6 Kf3 Qg7 Rd3 Nh4+ Ke4 Nf3 Qc1 Q5h6 Nd8 Ne3 Nf7 Qg2 Qd2 Ng4 Qe1 Bb3 Rc3 Qg5 Re3 Bc2+
3Bk3/bB1pPrBp/1rpRbn1K/R1Q4P/4bpq1/3N4/b1P1Pn2/2q4b w - - 1 2 illegal: Other
b7/Bp5B/Bn1P1q2/2K1rq1k/P2nR3/1p1p1p1b/QPRPNb1r/b1r5 w - - 1 2 illegal: Other
q7/Qp1pq2p/Rn1P2K1/PPb5/2b3N1/pn2RRr1/2P1B1br/1Brb3k w - - 1 2 illegal: Other
1bb3nN/p3qpPr/1QN2n1n/PP1K2kr/2P3Nq/B5p1/1r1p4/rR5B w - - 0 1 illegal: No proof kernel
NNr2n2/rb2bknR/1Pnn2p1/pPp1K3/3BNrqp/P7/1q4P1/6QR w - - 1 2 illegal: Other
R1br1Nn1/1q2pbpP/B2QRpP1/5k1b/pPnr2n1/b1N2P2/2q5/1K5R w - - 1 2 illegal: Other
3q4/b2nQrR1/KP1p4/B1p2k1P/r1R1N1p1/pP1P1b2/1rBn4/1q1R2rn w - - 0 1 illegal: Other
8/2b1KPB1/pP2QbR1/1R1p1q1q/1R1p2rN/P1NP1b2/2pb3k/n1r1n1r1 w - - 1 2 legal: proof: e4 g5 h4 gxh4 c4 f5 c5 fxe4 c6 bxc6 Bc4 Bg7 Be6 Bf8 Bd5 cxd5 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kc5 Kf4 g4 e5+ Kb5 c5 b4 h5 d3+ e3 a3 h3 f3 Kg3 f4 d4 f5 d5 f6 e2 g5 e1B g6 c4 f7 a6+ Ka4 h4 b5 c3 b6 c2 g7 h2 Qe2 e4 Qf1 e3 Bd2 e2 Bb4 h3 Nd2 Rh4 Nc4 Nf6 g8R+ Rg4 Nb2 Bg7 Nc4 Nh5 Rb1 Qg5 Nb2 Nc6 Bd6+ Nf4 Rf8 Be5 Bc7 Qf5 Rd8 Na5 Bb8 Ng2 Rf8 Bd2 Rg8 e1B Qe2 Nb3 Nd1 Na1 Nf3 Bf2 Rg1 h1Q Rg6 h2 Rb4 Kh3 Nc3 Ne1 Rf1 Bfg3 Nh4 Be6 Bd6 Rg8 Bf8 Bc7 Rg1 Bge5 Bg7 Qhf3 Rb5 h1R Kb4 Bc8 Qe4 Kh2 Kc5 Qh5 Rf1 Rgg1 Kc6 Bg4 Qf5 Qf4 Kd7 Bf3 Qe6 Qff5 Ke7 Ng2 Rfb1 Ne1 Bf6 Rg7 Rh6 R7g4 Rg6 Ng2 Bg7 Rc1 Na4 Ne1 R1b4 Rhg1 Nc3 Bf6+
7N/PqRp2R1/rP1Rp1P1/K2Q1q2/2bp2n1/n1pnkrbB/2P1p3/q5N1 w - - 0 1 illegal: No possible last move
q2nq1R1/2P1R1b1/pP1N3p/B7/2b1pnqP/4P1QB/1B1p1Krp/n2k2r1 w - - 0 2 illegal: No possible last move
b2B2n1/NR1p4/BK4k1/p2Pp3/NP1Qp1rq/P1n1bqr1/2P1pN2/2n3q1 w - - 1 2 illegal: No proof kernel
qq4rr/kN2N1p1/2p2Pp1/4rP2/2np2bQ/BPp3P1/2R2n1b/B2B1K1q w - - 0 1 illegal: Other
5NB1/1r2NR1B/b3Nr1b/k2q4/1p3Prp/pP1P1rpp/2n1QrP1/n4K2 w - - 1 2 illegal: No possible last move
nb2r1B1/pp2rP2/3Q1pB1/2r1NPB1/qr2pqRn/K2bP3/2p1P1R1/5k2 w - - 1 2 illegal: Other
Q6q/K1PqB1b1/3P1b1R/1q1b3b/3k1P1q/brR5/1qPB1N1n/1n3Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 b4 dxe4 h5 f5 a3 a5 h6 f4 Bc4 Ra6 a4 Rb6 Bf1 gxh6 Bd3 h5 Na3 h4 Nc4 c6 Ne3 fxe3 axb5 Rb7 b6 Rc7 Bb5 cxb5 Qf3 Rc6 Qd1 Rc5 bxc5 Bh3 Bb2 Bf5 Bc1 Bc8 Ke2 Kd7 d4 Kc6 f4 Kd5 g4 h5 c6 e5 c7 b4 g5 b3 g6 a4 g7 b2 b7 b1Q Ra2 h3 Qd3 a3 Qa6 h2 Ra1 a2 Qa3 h4 Nf3 h3 Qa5+ Qb5+ Ke1 e2 Kf2 e1B+ Ke3 Nf6 Rb1 a1B Rb4 Nbd7 b8B Bh4 Rb2 Ng4+ Kd2 e3+ Kc3 e4 Qa7 e2 Qa5 e1Q+ Bd2 e3 Qa4 e2 Qa7 Nc5 Ng5 Nb3 Qa2 Qc1 Ne4 e1Q g8Q+ Be6 Qa5 Bf7 Ba7 Qd7 Bc5 Qf2 Be3 Nd2 Qb4 Nb1+ Kb3 Bg7 Be7 Bhf6 Qb8 Qg3 Nf2 Rh5 Ra2 Bb2 Ra3 Re5 Qg8 Re6 Qa8+ Rc6 Rd1 h1B Re1 h2 Rd1 Qb7 Ka4 Rb6+ Ka5 Be4 Rf1 h1Q Qe1 Qh8 Rc3 Rb3 Rh1 Ba3 Bd2 Qb2 Rh6 Nh2 Qg1 Qh4 Qf1 Ke6 d5+ Kf5 d6 Bed5 Rd3 Bh5 Rc3 Qbb8 Ka6 Qb4 Nd3 Ke4 Nf2+ Kd4 Ka7 Qbb5
1r3n2/R1Pq1Q2/3B1pK1/1PnpPQ2/n1n2P2/2p3p1/B1N2n1r/1bk4N w - - 0 1 legal: proof: d4 h5 b4 e5 g4 exd4 a4 b5 axb5 hxg4 Bf4 c6 Bc1 c5 c4 cxb4 h4 g5 Rh2 g3 Ra3 g4 Rh1 Bh6 Rc3 Bg5 hxg5 bxc3 f4 Ke7 e4 Ke6 Ke2 a5 Kd3 d5 g6 f6 g7 a4 e5 Kf5 c5 a3 c6 g2 c7 g3 Bd2 a2 Qe2 a1N Nh3 g1N Rh2 Nf3 Bg2 Nh6 g8Q Nd7 Qd1 Ng4 Bc1 Nf2+ Ke2 Ke4 Bf1 Nb3 Na3 Nbc5 Qf7 Nd2 Nc2 Nf8 Ba3 Rb8 Qb1 Nc4 Rg2 Bf5 Bb4 Na4 Bd6 Nd3 Rh2 Bh7 Rh1 Qd7 Nf2+ Kf5 Kf3 Ndc5 Rg1 d3 Nh1 d2 Rg2 d1N Rd2 Ncb6 Bc4 Nf2 Ba2 Bg6 Rd4 Rh2 Rb4 Nc4 Rb3 Nab2 Ra3 Bh7 Ra8 Nba4 Ra7 Qe7 Na3+ Ncd3 Ke2 Ke4 Qc2 Kd4 Kf3 Ndc5 Qcg6 Qe8 Qg4 Bb1 Nc2+ Kd3 Qf5+ Nfe4 Kg4 Kd2 Qg7 Kc1 Qf7 Rf2 Kh5 Qd7 Kh6 Rg2 Kg7 Nf2 Kh6 Rh2+ Kg7 Nfe6+ Kg6 Nf8+
R1NnQ2K/rrn1R1QP/b2BqPP1/n4k1n/r5b1/1q2Pn2/4N3/b1b5 w - - 0 1 illegal: No proof kernel
r2r2QN/1b1R1P1B/6P1/brr2PPq/1nbR4/Q6b/r2nN3/1q1K1k1r w - - 0 1 illegal: Other
5q1n/1NkbPq1r/3q4/1nr2bPQ/2P4p/3brBb1/RP5K/1Q1b1N1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 e4 a5 g4 d5 Kg2 Kd7 c4 h5 b6 a4 g5 h3+ Kh2 d3 b7 d2 e5 h4 e6+ Kc7 Ra2 a3 Nc3 d4 Nf3 d3 Nd4 f3 Qb3 d1B Na4 f2 Nf3 f4 Ne1 d2 Qc2 f3 Qf5 Ne7 Be2 f1B Qh7 f2 Qh6 Ra5 Nc3 Rh7 Qg7 Nc6 Bg4 Rc5 Bf5 Bd3 Qh8 f1Q Be4 Nd4 Nb1 Nb5 Qc3 Bd7 Qb4 Ng6 Qc3 Nh8 Qc2 Qf7 Bf3 Qde8 Kg1 h2+ Kg2 Bd6 e7 B3f5 Qe4 Bg3 Nd3 Qef8 Qe1 Bc2 Qe4 d1Q Nd2 Be1 Nf1 Ba4 Be3 Qd2+ Bf2 Bd1 Qe6 Qf4 Qe4 Qe5 Bg3 Qd6 Rg1 h1B+ Kh2 Bg2 Rh1 Bgh3 Qe6 Be4 Qg6 Bhf5 b8Q+ Kc6 Ra1 a2 Qe8 Kc7 Qh5 Qd5 Qeg6 Qdf7 Nf4 Bd3 Ne6+ Kb8 Nd8 Kc7 Rb1 a1R Nb7 Ra3 Ra1 Bb1 Ra2 Re3 Qe6 Bbd3 Qe4 B3e2 Qc2 Bed3 Qb1 Bxg3+
2N1QrR1/b2p4/3PR2P/1n1Pbrb1/1K5k/n1n5/q1nr2PB/NQ3nq1 w - - 0 1 illegal: No proof kernel
1b3q2/1n1p2Pn/BPb4r/n3R3/1B1r2k1/2QN2n1/qb1PPRKn/q6Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 b5 e5 Nc3 exf4 Nd5 a3 Nxc7+ Ke7 Ne8 Kxe8 Kf2 Ke7 c4 Ke6 g4 a5 c5 h5 g5 Kf5 b6 f3 g6 h3 c6 a4 g7 h4 c7 h2 Rb1 h3 Kg3 f2 Kf3 a2 Kg3 a1B Rb2 a3 Rc2 a2 Rc3 Nc6 Qb3 Bd6+ Kf3 Rh6 Ba3 Bb7 c8Q Qf8 Rc1 Bb2 Qe8 a1N Qb4 Nd8+ Rc6 Ra4 Qc3 Nf6 Bb4 Nb3 Qce3 Nh7 Bc5 Rd4 Ba3 Na5 Qb3 Bb8 Bg2 f1N Bc5 Ng3 Kf2 Kg4 Re6 f5 Re5 f4 Qc3 f3 Bb4 Bc6 Qf7 Ndb7 Qd5 Ne4+ Kf1 f2 Nf3 Re6 Ne1 Rh6 Rg1 h1Q Nd3 h2 Bh3+ Kh4 Bf5 Qf3 Be6 Q3f7 Rgg5 Ng3+ Kg2 f1N Rgf5 Kg4 Qf3+ Kh4 Bc4 h1Q+ Kf2 Q7g8 Ba6 Nh2 Qg2 Qb1 Qh1 Qa1 Rf3 Kg4 Kg2 Re4 Rff5 Qga2 Rf2 Rd4+
3N1B2/4brq1/qK3Q2/n2b2rn/5RbP/bPrPNpk1/B3P3/1Qr4q w - - 0 1 legal: proof: c4 a5 f4 e5 g4 exf4 c5 h5 c6 hxg4 b3 b5 Nc3 a4 Rb1 dxc6 Rb2 c5 Nb1 c4 a3 b4 axb4 a3 b5 axb2 Kf2 Ke7 h4 Kd6 b6 Ke5 b7 g5 Bg2 c5 Bc6 f5 Bg2 g3+ Kf3 c3 Na3 b1B Rh2 c2 Nh3 c4 Nb5 c3 Nf2 Be7 Qg1 Ra5 Rh3 Nf6 Rh1 Nh5 Qh2 Qd6 Bf1 g2 Nd4 g1Q Bb2 c1R Qg3 c2 Qh2 Qa6 Bg2 Nc6 Bc3 Rb5 Ba1 Na5 Qg3 Rd8 Rh2 Qh1 Nd1 g4+ Kf2 Re8 Qd3 f3 Ke3 f2 Be4 f1R Rf2 g3 Rf4 g2 Bb2 Rc5 Ba3 Rg8 Ne6 Rg5 Nd8 Rc3 Bb4 Rf2 Ba3 g1Q b8Q+ Bd6 Qa7 Be7 Qb6 Bb7 Qh6 Bd5 Qh8+ Rg7 Qf8 Rf7 Qh8+ Qg7 Bc5 Rg2 Ba3 Kf6 Kd4 Rg4 Ne3 Rg5 Rg4 f4 Bg6 f3 Rf4+ Rf5 Qe4 Rf1 Qd3 c1B Qc2 Bb2 Qd1 Bd3 Qb1 Rfc1 Bd6 B3c4 Kc5 Bb5+ Rc4 Rg5 Bh7 Qc8+ Kb6 Bd7 Rf4+ Bf5 Ba3 Ke5 Bg6 Bg4 Bd3 Bf6 Bf8 Ba3 Bc2 Bfe7 d3 Qf1 Qb2 Qe1 Bb1 Qh1 Ba2 Qc4 Qb1 Qc8 Rb4 Qc4 Qh6 Kf4 Qf6+ Kg3 Ra4 Qc8 Rf4 Qa6+
8/N1qPQp2/3Nn3/b2qrbb1/q1P1B1Q1/b2qn1b1/k2P1BP1/1R1qK3 w - - 0 1 illegal: No proof kernel
b1R2b2/3QrP2/4n1PB/P1Nb1k1p/4b1pR/K2n3r/1Qq1bq1P/2q3B1 w - - 0 1 legal: proof: d4 a5 c4 e5 g4 exd4 g5 f5 b4 b5 cxb5 axb4 f4 g6 Bh3 Ba6 Bg4 Bb7 Nc3 Bc8 Nd5 Nh6 Ne7 fxg4 f5 Ng8 f6 Bb7 Nf5 gxf5 Kd2 Ba6 Ke1 Bc8 Kd2 Kf7 Kc2 Ke6 Kb2 d5 a4 c5 e4 d3 g6 c4 e5 d4 f7 f4 a5 b3 b6 d2 b7 c3+ Kb1 b2 Ka2 b1B+ Kb3 c2 Ra4 d3 Ne2 f3 Bb2 c1Q Ba1 f2 Rf1 Nh6 Ng3 Nc6 b8B Qb6+ Rb4 Bb7 Qc2 d1Q Bb2 d2 Rb5 Nf5 Bc3 Nfd4+ Ka4 Nb4 Ne4 Nd3 Ba7 Re8 Nc5+ Kf5 e6 Ba8 e7 Ne6 Bg7 h6 Re1 f1B Re4 Ba2 Rc4 Bfg2 Qb3 Qe2 Qb2 d1B+ Ka3 Qec2 Rc3 Ba2d5 Rbb3 h5 Bh6 Be2 Rc4 Rc8 e8Q Bge4 Qd7 Re8 Rcc3 Re7 Rc4 Nf4 Rh3 Nd3 Rh4 Rg8 Na6 Qf2 Rc5 Bg7 Rc6 Rb8 Rc8 Bf8 Bd4 Nf4 Nc5 Rb3+ Ka4 Rg3+ Kb4 Nd3+ Ka3 Rh3 Bde3 Qg2 Bg1 Qf2
B1K1bN2/1p1bQ3/P3bq2/3nP3/1p3q2/1q1n1Q1P/bP1BRN2/r1n1rk2 w - - 0 1 illegal: Other
n1N1rbK1/PnP1bP2/n2Rr1Qq/3q1b2/2R1q3/1Pp2p1n/4Bk2/2B4Q w - - 0 1 illegal: No proof kernel
2B1Q2q/b1r5/nn5b/1PNK4/r2pnrP1/pbQ2PPb/2B3k1/1N1r3R w - - 0 1 legal: proof: b4 c5 a4 b5 d4 cxd4 e4 bxa4 h3 e5 Be2 g5 Bf1 g4 hxg4 f6 Bb2 d3 Bd4 Ke7 Ra3 Ke8 Rc3 Ne7 Rc5 exd4 e5 Ng8 e6 Bd6 Rch5 Bf8 Re5 fxe5 Kd2 Ke7 c4 Kf6 e7 Kg5 e8B Kf4 c5 a5 f3 Kg3 b5 h5 c6 d5 c7 h4 Qe2 e4 Qd1 h3 Qc1 a3 Qc2 h2 Qb2 a2 Bh5 a1B Qb3 e3+ Kc1 a4 Bg6 d2+ Kc2 d1R Qa2 e2 Qb2 e1R Be8 d3+ Kc3 d2 Kd4 a3 Bd3 Be6 c8Q Bh6 Be2 Ra4+ Qc4 Nf6 Bf7 Ne4 Bg6 Rh7 Bf7 Qh8+ Kd3 Na6 Qg7 Bd4 Qc6 Ba7 Qgc3 d4 Qe8 Bb3 Be6 Rc7 Bc8 Kf2 Nh3+ Kg3 Rf1 h1B Nf2 Kh2 g3 Bg2 Rg1 Bh3 Rf1 Kg2 Rh1 Rc1 Bd1 Re2 Bc2 d1N Qe1 Ne3 Qb4 Nc4 Qc3 Ned2 Ne4 Rd1 Nc5 Ree7 Qb2 Rf7 Qc1 Nf1+ Ke4 Rf4+ Kd5 Nfd2 Qb2 Ne4 Qc3 Nb6#
1bK5/2qP2n1/1b3R1P/3bR1p1/NBN1Ppqq/nQ1n1kn1/3P2n1/1r4Q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 Ra5 f6 Rd5 Bh3 b5 Bg2 exf6 Be4 f5 Bf3 f4 Be4 Rd4 Bc6 Rd5 cxd5 dxc6 Kf2 Kd7 h4 Kd6 a4 Ke5 e4 f5 h5 b3 d6 b2 d7 b4 h6 g3+ Kf3 b3 a5 c5 a6 c4 a7 c5 a8Q c3 Qe1 c4 Ne2 g2 Rh3 g1B Ra2 c2 Ra3 c3 Ra6 Bb7 Rg3 Ne7 Qa7 Nbc6 Rh3 Nd5 Ra5 Ne7 Ng3 Bb6 Ra2 Ne3 Qa3 Bd5 Nf1 Ng2 Ke2 f3+ Kd3 Kf4 Rh5 f2 Qc5 Kf3 Kd4 f4 Ke5 Nf5 Qb4 Qh4 Qc4 g5 Kf6 Ng7 Ra5 Bd6 Ne3 Rb8 Qg1 f1N Qb4 Be5+ Ke7 Ng3 Nc4 Rb7 Rc5 Bb8 Rc6 Qg4 Rh1 Qh4 Rf6 Qg4 Nba3 b1Q Nb5 b2 Qb3 Qa1 Rh3 b1N Ba3 c1N Bb4 Nd3 Rh1 c2 Nc3 c1Q Na4 Na3 Rh3 Bc5+ Kd8 Bb6+ Kc8 Qe5 Rh1 Qca1 Qgb1 Qac3 Rc1 Qee6 Rc2 Qh4 Qg1 Qce5 Ncb2 Qeh3 Rc5 Q3g4 Nc4 Ba5 Qc2 Bg8 Bc3 Rb1 Bb4 Bb6 Qb3 Qd6 Rcf5 Bd5 Re5 Qc7#
4r3/1b1P1n2/1pkPpQ1b/2r1q2p/1Pr5/K1qP2N1/1R2R3/nB1NQb1n w - - 0 1 illegal: Other
1b1b2R1/2r2bpQ/1P2P3/3n1RPN/1nkPKpq1/3N1pQ1/n3r3/1q3Bb1 w - - 0 1 legal: proof: c4 a5 f4 d5 a4 dxc4 f5 b5 axb5 e6 Kf2 exf5 Ke1 f4 b4 axb4 Bb2 h6 Bf6 h5 g4 h4 Bd4 Qg5 Bf2 Qd8 Bg3 hxg3 e4 Kd7 Ke2 Ke6 Kf3 f5 h4 c5 d4 b3 b6 g2 e5 Kd5 h5 c3 g5 c2 h6 c1N h7 c4 Rh3 c3 Rh5 b2 Rh3 c2 Bd3 Na6 Rh1 Qd7 Rh3 Na2 Rh4 c1B Rh3 Ra7 Bf1 Ne7 Na3 b1Q Qd3 Rc7 Nc2 N6b4 Ne2 g1B Ne1 Rg8 Qe3 Kc4 h8Q Ned5 Qh7 Be7 Nd3 Bd8 Ng3 Re8 Nh5 Bd2 Rg3 Be1 Rg2 Bg3 Qf2 B3h2 Qg3 Qe6 Re2 Ree7 Re4 Bd7 Re3 Be8 Re2 Bf7 Rf2 Nac3 Ra8 Nca2 Rc8 Qh6 Nf6 Qh3 Nh5 Qg4+ Kg2 Rc5 Be2 Bc7 Rh8 Bd8 Rf1 Rc6 Re1 f3+ Kf1 Kb3 e6 Qe4 Qb8 Rc3 Rg8 Rc4 Qf4 Rd7 Qh4 Bb8 Qg3 Rc2 Rc1 Ne3+ Ke1 Qg4 Bf1 Rc4 Kd2 Rdc7 Re1 Ned5 Re5 Rc1 Nb2 f4 Rf5 Nc2 Kd3 Re1 Nc4 Re2 Nb2 Rd2+ Ke4 Ncb4+ Nd3 Kc4 Qg2 Rb2 Qg3 Re2+
6n1/3pqbq1/p2PQ3/KRN1RP2/1nP1n2N/r2pn2k/2qP4/B3Qr1b w - - 0 1 legal: proof: h4 c5 g4 g5 a4 gxh4 g5 f5 e3 b5 g6 bxa4 g7 c4 Bd3 cxd3 Qg4 Nh6 g8Q fxg4 Qd5 Ng8 Qf3 Bg7 Qd1 Bd4 exd4 Qa5 Qe2 Qc7 Qd1 Qd8 b4 Kf7 c4 Ke6 f4 Kf5 b5 e5 d5 h5 d6 h3 b6 g3 b7 g2 Ba3 h2 Bc1 e4 Nh3 h4 Ng5 h3 Ra2 e3 Qe2 g1Q+ Qf1 Kg4 f5 e2 Ne4 a3 Nc5 Na6 b8Q Qe7 Qb7 Nb4 Qb6 Bb7 Rb2 a2 Nc3 a1Q Nd5 Qb1 Nf4 Qc2 Ng6 Bd5 Nh4 Bf7 Qb7 Qd4 Qd5 Qg7 Kf2 e1N Qe6 Ng2 Qfe1 Ne3 Rb3 Rh6 Bb2 Rh5 Rf1 h1B Ba1 h2 Rb2 Kh3 Rb3 Na6 Rb5 Nb4 Rg1 Rh7 Rg4 Rh6 Re4 Rg6 Re5 Rg2+ Kf3 Rg1+ Ng2 Rf1+ Ke4 a6 Kd4 Rb8 Nh4 Rb6 Ra5 Rb7 Ra2 Rb5 Rb2 Ra5 Rb3 Ra3 Rb1 Nbd5 Rb5 Nb4 Ne4 Bf3 Kc5 h1N Kb6 Ng3 Nc5 Bg2 Qd5 Bh1 Qe6 Rc3 Ka5 Ne4 Qe2 Rb3 Qe1 Ra3+
2n3Q1/6p1/NpPkp3/q3b2q/b2N2bP/b1B2P2/1br1Q2P/n1nR1KR1 w - - 0 1 legal: proof: e4 c5 b4 f5 d4 cxd4 b5 fxe4 b6 h5 Bd3 axb6 Bf1 b5 Be2 b4 Bg4 hxg4 g3 Ra5 Na3 Rh4 gxh4 Rh5 Nb1 Rh8 c4 d5 a4 Kd7 c5 b3 a5 e3 a6 b2 a7 g3 a8Q d3 Qaa4+ Nc6 Qd2 e2 Qa2 g2 Qa7 d4 Qa6 Ne5 Qb4 Qa5 Qh6 b6 Nd2 b1N Qh7 Na3 Ndf3 Nc2+ Kd2 e1B+ Kd1 d2 Ke2 Nd3 Nh3 g1B Qh5 d1Q+ Kf1 Bc3+ Ne1 Bb2 Qh6 Qh5 Bd2 Nc1 f3 d3 Bc3 d2 Qe3 d1B Qe2 Bd4 Qbc4 Be5 Nf4 Kc7 Qa2 Bg4 Nfd3 e6 c6 Ne7 Rg1 Kd6 Nc5 Nc8 Na6 Be7 Rb1 Na1 Nc2 Rd8 Nd4 Ba4 Qa3+ Kd5 Qb4 Bc5 Qa3 Kd6 Qa2 Bca3 Qd5+ Ke7 Qde4 Rd5 Qh7 Kd6 Qh8 Rc5 Qg8 Nd3 Rd1 Nc1 Be1 Rc2 Bd2 Qf7 Bc3 Qh5
1b1q3b/P2RpPnQ/B2r3R/2q3K1/k2N2pn/2P4P/N4pnn/1Q3bn1 w - - 0 1 illegal: No proof kernel
rr6/1k4r1/bq1QPr2/PQp2N2/B3Kp2/b1r3np/1r1PRP2/1BbR4 w - - 0 1 illegal: No proof kernel
2Q3B1/1pb3PP/n5Bb/1P2r2r/p3Nnpk/P6r/KNR2nbQ/1b3n2 w - - 0 1 illegal: No possible last move
1kq2n2/1b4Np/1KP1Pr1q/2rr1P1R/n2RQ3/1qq2qb1/N5qP/4QqB1 w - - 0 1 illegal: No possible last move
q2qqb2/5pNr/5Q1R/Pqrn4/1n1rP1QP/BB3bqb/1K3Pk1/5b1R w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Na3 d3 Nb5 hxg6 Bd2 g5 Nd4 exd4 Bc1 g4 Kd2 Ke7 e4 Ke6 a4 Ke5 c4 Kf4 h4 g5 a5 d5 c5 b5 c6 b3 c7 b4 Qe1 g3 Rb1 g2 Ra1 g4 Rh3 g3 Be2 b2 Bf3 b1Q Rh2 b3 Bg4 b2 Bh5 Bh3 c8Q Qe8 Qc6 Ne7 Bg6 Rh7 Rh1 Na6 Qc3 Nb4 Qd1 Rc8 Ra2 Rc5 Ne2+ Kf3 Rf1 g1Q Re1 g2 Qcb3 Qh2 Qc4 g1Q Bf5 Kg2 Be6 Qhb8 Bf5 Qa8 Qa6 Qh2 Qc2 Qg3 Kd1 d2 Qb3 Qbd3 Bg4 b1B Ba3 Qdb5 Rb2 Bd3 Qf6 Bc4 Be6 Bd3 Nc3 Bf1 Qa2 Nd3 Kc2 d1B+ Kb1 Bf3 Ne2 Nb4 Rb3 d3 Kb2 d2 Nd4 d1Q Nf5 d4 Ng7 d3 Qb1 B1e2 Rh1 d2 Rd3 Bf1 Rd6 Ned5 Qa2 Nc7 Bb3 Ncd5 Rc6 Qde2 Qb1 d1R+ Qc2 Qe1 Qe2 Rd4 Ra6 Qd1 Rb6 Bh5 Qg4 Qdd3 Qe5 Qd1 Rh6 Qdd3 Qf6 Qd1 Qgg6 Bf3 Qg4 Nc7 Qd8 Rdc4 Qe7 Qdd8 Qd6 Ncd5 Qf6 Rd4
2n1bB2/qpPk2b1/1PN2Q1N/3r4/2K4P/rPnnq1b1/q5Q1/nB1q1rR1 w - - 0 1 illegal: Other
q4K2/Bb6/k1N1pRQn/6n1/2rRP2n/n2N1P1P/3P1r2/brQb1qrq w - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Qa4 g3 Bh3 g2 Bg4 hxg4 Qc2 dxc6 Qb3 c5 Qd1 c4 a4 Kd7 e4 Kc6 Ke2 Kb6 Ke3 c5 Kf4 g5+ Ke5 e6 h3 c3 a5+ Ka6 Qf1+ b5 Bb2 b3 Bc1 c2 Nc3 c4 Na4 b4 Nf3 g1R Qg2 g3 Bb2 c1Q Qh2 g2 Rb1 g4 Qg3 c3 Ba1 b2 Ne1 b3 Qf3 c2 Nc3 g3 Qf7 Nd7+ Kd4 Rb8 Nb5 Ne5+ Qd7 Nf7 Qd5 Ng5 Ke5 Nh6 Qd7 Bg7+ Kd6 Rf8 Nd3 Qf1 Rc1 b1N Bd4 b2 Ba7 Na3 Nd4 b1B Nc6 Ba1 Rh2 Qe8 Qh7 Ba2 Qg8 Bb3 Qg6 Rb4 Rb1 Rc4 Rb2 Ba4 Rb4 c1R Rh1 Rf4 Rh2 Qh8 Ke7 Bd1 Rh1 Rb1 Ra4 Rc2 Rd4 Rc4 Rh2 Bd7 Rh1 Qa8 Rh2 Bc8 Ke8 Rh1 Ke7 g1N Rg2 Nf5+ Kf8 N1f3 Rh2 N3h4 f3 Rg4 Rg2 Rh2 Rg1 Rf2 Rg2 Kb5 a6 Qh1 Bb8 Nh6 a7 Ka6 Rg1 Qb7 a8Q+ Qa7 Bd6 g2 Bc5 Rg3 Qb8 Qb7 Ba7 Qa8 Qb2 Rg4 Qc1 Rg3 Re1 g1Q Rf1 Qgg2 Rg1 Qf1 Na5 Rgg2 Nc6 Rh2 Rg4 Rhg2 Rf4 Rg1 Rf6 Bb7+
n2b1k2/1Nr1rPrr/b2Q1PQ1/p2P2R1/q3n3/1n3b1r/Pn6/2NB1rRK w - - 0 1 illegal: Other
n4q2/1QbpbbB1/1qNP1bnK/Pb2n1P1/1Rq1p3/3B2kr/P5rN/6Q1 w - - 0 1 illegal: Other
bB1r4/b1pRB2N/KN4Q1/2PQ1n2/2P1qpP1/1nqr2b1/2n2Pk1/1bb3r1 w - - 1 2 illegal: Other
1q5n/3p3R/P1qNqQ2/q1Bn1r2/BP3k2/N1p1b2Q/r2P2bP/n3Krq1 w - - 0 1 illegal: No possible last move, all moves rejected
nN1R4/2Pbkq1r/1QPR3r/n2pbQ2/1n1P2NP/q3B3/1b1p3K/1qrr4 w - - 0 1 illegal: Other
r1n2K2/6qQ/B1p3Q1/1RP1N1Bp/qP4b1/Rb1r1rP1/n1k1bb1P/3q3n w - - 1 2 illegal: No possible last move
1b5R/Q1rp4/bRPNnp1r/1K5b/2Q1qBq1/2Pn1P2/1n1P2N1/1kq1r2r w - - 0 2 illegal: Other
1rnR1bnr/2p3n1/N2QB2N/b1rb2r1/q2PPp2/1bP2P1r/6kB/Q2K4 w - - 0 2 illegal: No possible last move, all moves rejected
6b1/Qn5b/N2kr3/5pnB/3rqPr1/pP4n1/Pb1BnbPK/Q3nR1N w - - 1 2 legal: proof: h4 b5 c4 bxc4 e4 d5 h5 dxe4 b3 c3 Na3 g6 Rb1 gxh5 Rb2 cxb2 Bc4 h4 Bb5+ Nc6 Bf1 Nb8 f4 Kd7 Kf2 b1B d4 h5 d5 c5 d6 a5 Nc4 e5 Be3 a4 Rh2 a3 Qd4 h3 Kg3 h4+ Kg4 Bg7 Bc1 e3 Ne2 e4 Qd3 Ra4 Na5 c4 Nd4 c3 Qe2 c2 Nf3 Nf6+ Kg5 Rd4 Qd1 e2 Nc4 e1B Nb2 e3 Nc4 e2 Ncd2 Rg8 Nc4 Bf2 Qd2 e1N Qd3 Na6 Ng1 Nc5 Qh7 Nfe4+ Kg4 Qe7 Be2 Nb7 Qh8 Ng5 Rh1 h2 Nd2 h3 Ne4 f6 Be3 c1N Bd2 Bd3 Bd1 Ne2 Nc5+ Kc6+ d7 Qe4 Na6 Kd6 Qh7 Re8 Qh8 Re6 d8Q+ Bd7 Qa8 Be8 Nf3 Bf7 Rf1 h1N Ne5 h2 Qa7 Nhg3 Kh4 Bb1 Nd3 Bg8 Kg4 Bc2 Kh4 h1R+ Kg4 Bg1 Nf2 Rh5 Nh1 Bf2 Bc1 Rh6 Bd2 Rg6 Kh4 Ngf3+ Kh3 Rg4 Bc1 Ng5+ Kh2 Qe5 Bd2 Bch7 Bc2 Qd5 Bg6 f5 Bh5 Be5 Qf6 Qe4 Qg7 Rd5 Qf6 Bb2 Qc3 Rd3 Qc1 Rd5 Qa1 Rd4
3r2bb/3r2p1/kPp5/nNQ1PKP1/2R1b1R1/3Q1B2/1B1bP1qr/3qn1bb w - - 0 1 illegal: Other
4R2q/rk1nq1p1/rr1p4/K4BP1/PP1n3B/QN2Pr1R/3n3n/b1Qbr3 w - - 0 1 illegal: No possible last move
N1Q5/2R1b2K/B1pqPrPQ/2n1np1r/3nb1Nr/1rP5/1qPn2k1/1R5q w - - 0 1 illegal: Other
q2kN3/rr1b3p/2rr4/1nPKp1b1/4PQ2/2B2RbP/QP6/bnBb2bN w - - 0 2 legal: proof: d4 c5 a4 f5 g4 fxg4 a5 c4 Ra3 b6 Re3 bxa5 Rd3 a4 Bg2 cxd3 c4 Kf7 c5 Ke8 Bd5 d6 Bb3 d5 Bc4 dxc4 Kd2 g5 Kc3 a5 e4 g3 f4 d2 d5 g2 Kd4 g4 f5 a3 f6 a2 d6 a1R h3 c3 Qe1 d1B Qf1 g3 Nd2 a4 Qe1 c2 Nf1 a3 Qb4 a2 Qc4 Na6 Ke5 Rb8 Qb4 Rb7 Nh2 Nc7 Nf1 Bd7 Qe1 Qa8 f7+ Kd8 Qe2 Nb5 Nh2 Nf6 Qc4 Nd5 Ne2 g1B Ng4 g2 Ng3 Ndc3 Nf6 Nb1 Kd5 e5 Qa4 Bf2 Ne8 Be7 f8Q g1B Qf4 Bg5 Rh2 Rg8 Nh1 Bg3 Rf2 Rg6 Rf3 Rh6 Bd2 c1R Bc3 Bf5 d7 Rc6 Be1 Rc3 Qc4 Ra3 Bc3 Raa7 Qa4 N1a3 Qa6 Rc1 Qa4 a1B Qb3 Nb1 Qa2 Ke7 d8B+ Kd7 Bb4 Kc8 Bc3 Bd7 Bda5 Rc2 Bab4 Kd8 Bd2 Rc4 Bbc3 Rca4 Bc1 R4a6 Be3 Rg6 Bed2 Rac6 Bc1 Rgd6+
1b1nQ3/5N1p/q1Pq2p1/P1r1Rn1r/bk4Bq/N6Q/2bpP1P1/1KRnr3 w - - 0 1 illegal: Other
1q1b3K/R3q2P/P2p1N1n/P2PN2B/q1Q5/5pq1/rr1n1Qp1/3nBbqk w - - 0 1 illegal: Other
4B2q/1QNnBq1p/2P5/3r3R/kpPp4/r1P1q1rP/2rb2b1/n2KrN1Q w - - 0 1 illegal: Other
N1NB3Q/Bnp2bp1/KRqb4/1P1nq2n/pP1rn1Q1/4q1P1/2Pk2n1/2r5 w - - 0 2 illegal: Other
5n2/pPk1P1K1/n1q5/n2pqbN1/1b1r1q1B/PP2r1q1/3qpNQ1/3Q2RB w - - 0 1 illegal: Other
5r1Q/p6B/b1pK3b/kP2P1b1/3B1R1p/1Prqbb1q/Pnn1N3/3rR1Q1 w - - 0 1 illegal: Other
3r2r1/1R1p2Pb/1nkP4/4K3/q2r3p/3rPRN1/N2qnPbp/2bQ1QnB w - - 0 1 illegal: No proof kernel
1bK2b2/1p2Pn2/5n2/1kq3r1/1PN1QBQp/pB3bP1/P2Rqr1n/3N1r1b w - - 1 2 legal: proof: d4 g5 f4 c5 h4 gxh4 b4 e5 Nd2 exf4 c4 cxd4 Rb1 Qg5 Rb3 Qd8 Rc3 dxc3 Kf2 f5 Kf3 d5 e4 Kd7 e5 Kc6 e6 a5 g3 h5 c5 h3 e7 h4 Qc2 h2 Bc4 a4 Ne4 a3 Nf6 d4 Bb3 d3 Ne4 d2 Nf2 d1Q+ Ne2 Ra5 Bb2 Nh6 Be6 Qc7 Bf7 Kb5 c6 Nd7 Qb3 c2 Nd3 c1B Ne5 Nf6 Bg8 Nf7 Qe3 Rh7 Rg1 h1B+ Rg2 Rg7 Bd4 Rg5 Nc4 Qb6 c7 Qc5 Qe5 Be6 c8Q Bd5+ Qe4 Qd3+ Kf2 f3 Be3 f4 Qg4 Bb2 Rh2 Be5 Rg2 Bb8 Nc3+ Kc6 Nd1 Kb5 Kg1 f2+ Kh2 f1R Kh3 f3 Rd2 f2 Bf4 Ra8 Qg6 Ra4 Nce3 Nd8 Bc7 Qe2 Qc8 Ra6 Be6 Bc6 Bb3 Rg1 Nc4 f1N Qb1 Ne8 Qcf5 Bd7 Qe4 Rf6 Qfe6 Rf2 Bf4 Nh2 Q6f5 Rgf1 Qfe6 Re5 Q6f5 Nf3 Kg4 Nh2+ Kg5 Nf6 Kg6 Nc6 Kf7 Rd5 Qh5 Rg5 Qhf3 Bh3 Qg4 Ne5+ Ke6 Bf3 Be3 Nf7 Bf4 Ng8 Kd7 Bhg2 Be5 Bh1 Bf4 Bc7 Kc8 Nf6 Bd6 Bb8+ Bc7 Qa7 Bf4 Qc5+
q2N1k2/6rp/6qr/1B2nPpq/pb2BqRP/bnKP1QPb/1R5Q/5r2 w - - 1 2 legal: proof: c4 e5 a4 d5 a5 dxc4 a6 e4 Qb3 e3 Qc2 bxa6 Qb3 a5 Qd1 a4 d3 f5 Bd2 Be6 Qb3 exd2+ Kd1 Bd5 Qc2 Bf7 Qc1 Be6 Kc2 Bd7 Qd1 Bc8 e4 Qg5 e5 Qh4 Nc3 Qh3 Ne4 fxe4 Qe2 Qe3 Kd1 Qh6 Qe1 Qh3 Ke2 Qh4 Qd1 Qd8 f4 c5 b4 a5 h4 g5 b5 c3 g3 a3 b6 c2 e6 c1R e7 a4 b7 a2 Rh2 c4 Bg2 c3 Bf3 c2 Rh1 e3 Qf1 Ra6 Qg2 Rf1 Rb1 a1Q Nh3 c1Q Rb6 Nh6 Qg1 Rg8 Qg2 Rg7 Bc6+ Nd7 b8Q Qf6 Be4 Ng4 Qh2 Qg6 Rb4 Nc5 Qb7 Ne5 Rb2 Kf7 e8B+ Kg8 Rg1 Nb3 Bb5 Ba3 Rg2 Qde8 Rf2 Kf8 Rf3 Bg4 f5 Qa8 Nf4 Bh3 Qc6 Qh5 Qd5 Rh6 Qc6 Qg6 Ne6+ Ke7 Nd8 Kf8 Rf4 Qc4 Bh1 Qe4 Rg4 Qf4 Qc1 Nf7 Qe1 Ne5 Kd1 e2+ Kc2 d1Q+ Kc3 Nc5 Be4 Nb3 Qef2 e1B+ Rd2 Qe2 Qf3 Qee3 Qhf2 Qeb6 Qh2 Qh5 Nb7 Qbg6 Nd8 Bf2 Ra2 Bfc5 Rb2 Bcb4+
3Q1rr1/1pNb1QRr/1q3bp1/3B3k/nq3P2/PP1r3n/B2b1pPq/K4N2 w - - 1 2 illegal: No proof kernel
nR1b4/R4nqn/Qp3rPp/1q4NN/PkP2r1Q/b1b2bp1/1P1B3q/2K5 w - - 0 1 illegal: No proof kernel
8/KN1Q1nrp/pB1B4/b2b1rb1/rPk1p3/4PPr1/1qr3RP/3QnrN1 w - - 1 2 legal: proof: c4 b5 a4 bxa4 c5 f5 c6 f4 Qb3 f3 Qc2 dxc6 Qb3 c5 Qd1 c4 e3 g5 Be2 Bd7 Qc2 Bh3 Kd1 Bc8 Qb3 fxe2+ Kc2 Ba6 Kc3 Bh6 Qd1 Bc8 Kc2 Bf8 Kc3 g4 Kc2 g3 f3 Bh6 Qe1 Bg7 Qd1 Bf8 b4 Qd4 Nh3 Bb7 Rf1 Bc8 Rf2 gxf2 Ng1 Qd3+ Kb2 Kd8 Qb3 Bf5 Nc3 Qd4 Nh3 Bg4 Kb1 Qb6 Ba3 Nc6 Kb2 Na5 Rh1 Qb8 Qd1 Nc6 Nb1 Ke8 Ng1 Qd8 Kc2 Bc8 Bc1 Nb8 Kc3 Kf7 g4 Ke6 d4 Kd5 g5 e1B+ Nd2 f1R g6 c5 g7 e5 Qc2 e4 Qd1 a3 Bb2 a2 Nh3 a1R Qc2 a6 Ng5 Nc6 Qd3 Ne5 Bc1 Nh6 g8Q+ Be6 Qb1 Ra4 Qf7 Ra7 Qf5 Be7 Qb3 Rg8 Qb2 Bh4 Nb3 Nf7 Nh3 Rg3 Qa1 Bhg5 Bb2 Qh8 Ng1 Bd8 Qd1 Ba5 Qh3 Nd3 Qg4 Bad8 Na5 Ne1 Nb7 Ba5 Qh3 Ra8 Qg4 Rg8 Qh3 Rg7 Qg4 Kc6 d5+ Kb5 d6 Bd5 d7 Ne5 d8B Nf7 Kd2 c3+ Ke2 c4 Qd7+ Bc6 Bb6 c2 Kd2 c1R Be5 Rca1 Bd6 c3+ Ke2 c2 Kd2 R1a2 Kc3 c1R+ Kd4 Rag2 Nh3 Rc3 Rg1 Rgc2 Rg2 Rc5 Ng1 Rf5 Qc8 Bd5 Qe6 Ra1 Qe7 Ka4 Qd7+ Kb3 Qc1 Rcf2 Kc5 Ra4 Qd1+ Kc3 Nd8 Rc2 Nb7 Bb3+ Kc6 Be6 Kc7 Kc4 Kc6 Bd5+ Kc7 Nd8 Kb8 Nf7+ Ka7 Rg8 Bf4 Qb2 Bd6 Rg7
Qr1Rnb2/1rP2pP1/1K1bb2p/pN4b1/P1BQrq1P/3b1k2/2R2N2/b6n w - - 1 2 illegal: No possible last move, all moves rejected
n2r1NrB/2q1q1q1/k1nqB3/2PPp2p/4PNQ1/1PQRp3/2b1qbq1/7K w - - 0 1 illegal: No proof kernel
n1K5/1p1rPbRn/8/2pP2nQ/1R1bNp2/rqP2b1Q/1P3nB1/1bn3kN w - - 0 2 legal: proof: e4 e5 f4 g5 a4 d6 h4 gxh4 d3 Qe7 a5 Qe6 Bd2 Qd5 Bc3 exf4 e5 Qxa5 e6 Qa2 Be5 dxe5 Kf2 Ke7 Kf3 Kf6 Kg4 c5 d4 a5 d5 h5+ Kf3 Kg5 Ke4 f5+ Kd3 f3 g4 Kf4 g5 Kg3 c3 Kf2 e7 f4 Ke4 h3 g6 h2 g7 h4 Bd3 h3 Nd2 a4 Qb1 a3 Bb5 Be6 Be2 Bf7 Kf5 e4 Nc4 e3 Qd3 Nf6 g8Q Bg7 Qd2 Nh7 Rc1 Qb3 Qe8 a2 Bf1+ e2 Qd1 e1N Na5 a1N Nc4 Bd4 Bd3 Nd7 Be2 Nb6 Bf1 Ra3 Qd7 Rd8 Ne2 Na8 Rg1 h1B Rg7 h2 Ng3 Kg1 Nd2 f2 Qh5 Bf3 Rd1 h1N Bg2 f1B Nde4 Nf2 Nh1 Bd3 Qe6 Bb1 Qeh6 Be5 Rd4 Rd7 Rb4 Bd4 Qe6 Qd1 Qeh6 Nb3 Qh3 Nc1 Q6h5 Bg6+ Ke6 Qb3 Qh6 Ned3 Q6h4 Ne5 Qh5 Nf7 Rg8 Rc7 Rg7 Nfg5+ Kd6 Rc6+ Kd7 Rd6+ Kc8 Rd7 Qg3 Be8 Qgh3 Bf7
b1knN3/P3P1QR/4prNp/2r3n1/Bq4P1/1p1Qbr1n/2b3rP/Bn2K3 w - - 0 1 illegal: No proof kernel
b1r4K/Qp1p2b1/r1N3r1/B2nR2N/n1B3pP/Pn1P4/Q3n2P/1q1b1k1b w - - 0 1 illegal: Other
n1b1RBkN/3pnrp1/P4nB1/1pb2Rr1/r2r1Q1P/1b1P3n/1Q2q1P1/7K w - - 0 2 illegal: No proof kernel
QB6/PK2pb1B/2P1r1nr/4N1rk/1p5b/4R2q/PP1r2qp/1bnRb2Q w - - 0 1 illegal: Other
4q3/KPkP3q/n2pB3/P1p1bNn1/5Rp1/q2P3r/bb3r1B/q3bRQQ w - - 0 1 illegal: Other
n3r3/2P1bPQn/bP2qp2/kp1QBP2/5pq1/r1R1n3/bR3qp1/K4BN1 w - - 0 1 illegal: Other
BKq5/n3PQ2/4PR1p/3n2p1/1B1p2qk/2nrrR1P/bQ2Pprb/N2q4 w - - 0 1 illegal: Other
8/qk1Nnbpp/2p3QP/2bb1pn1/N1Q3Pr/1br1Rr1P/b2K2P1/5B1B w - - 0 2 illegal: Other
1n5b/r1nn3b/p3Pp1P/RNb2p1n/1p1n1B2/1qQNr2k/4PP2/1Q3R1K w - - 0 1 illegal: Other
1r2Q3/Pbpqp2n/7N/bQq3qp/B1nrk2P/2R1PN1p/1P4Bq/K1r5 w - - 0 2 illegal: No proof kernel
6Qb/2PqQK1n/2r1PNp1/pn2bR1p/pBk5/R1n2NP1/P1n2b2/3br3 w - - 0 2 illegal: No proof kernel
4n3/4bp2/P1Knpb2/Q1q1Q1P1/rN1ppPr1/1b1r3k/2RNP3/bB2r2B w - - 0 2 illegal: No proof kernel
b1q5/qp2n2p/R1Np2B1/4b2P/p1np1B2/1qPKN1rQ/rP1Q1nP1/1k6 w - - 0 2 illegal: Other
b7/2P3bP/b2QPBr1/1R3B2/k1p1NKN1/ppqrQp1n/rP1np3/7r w - - 0 1 illegal: No proof kernel
nb2N1b1/2nBP3/4q1Pr/RP6/1RBN1KPB/1b1n1b2/nk3b2/2qr4 w - - 0 1 illegal: No possible last move
1bK1nr2/bRB2PN1/Bb1rq1n1/4R3/2P3k1/2nnr3/PR1Nq1P1/b6n w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 c5 fxe4 c6 bxc6 b5 c5 Rh2 c4 Rh3 Na6 Rh1 Nb8 d3 c5 Rh2 c3 Rh3 c4 Qc2 Bb7 Qb3 c2 Rh1 c3 Qc4 Bd5 Qb4 Bc4 dxc4 axb4 Ke2 Kf7 Ke3 Ke6 Kf4 d5 b6 h5 b7 d4 f3 h3 Nd2 h4 Rh2 e3 Ne4 e2 Nf2 e1N Ne2 d3 Ng4 b3 Kg5 b2 f4 b1N Ba3 c1B Ng3 d2 Be2 d1R Nh5 c2 Bf1 Qd3 Ngf6 Be3 Bb4 c1B Ne4 Ba7 Nd2 Nd7 b8R Qe2 Ba5 Bb2 Bd8 Nc3 Rb7 Ngf6 Rh1 h2 Rc7 h3 Ne4 Nd3 Nf2 N7e5 Rc1 Ng6 Ng3 Ne8 Nh5 Ba1 f5+ Ke5 Rg1 h1N f6 h2 Ng7 Rh3 f7 Re3 Rb1 e6 Rb2 Bd6 Rcb7 Bdb8 Ne4 Bb6 Kh6 Kf4 Bc7+ e5 Nd2 Kg4 Kh7 e4 Kg8 Nh8 Kf8 B6a7 Ke7 Ng6+ Kd7 Qf3 R7b4 Re2 Bf4 e3 Bc7 Qf6 Nb1 Ndf2+ Bd6 Ng3 Kc8 h1Q Rb7 Bc7+ Kd7 Bcb6 Rc2 Nc7 Rb8 Qe6+ Kd8 Rd5 Rb2 Nd3 Nd2 Qh8+ Ne8 Qhe5 Ng7 Re1 Rh1 e2 Rh5 Nh1 Rf5 Rb1 Rh5 e1B Rf5 Qe4 Be2+ Qf3 Bd1 Bg3 Ba4 Re1 Bb5 Re3 Ba6 Qe2 Rh5 Qe5 Kd7 Bh2 Rb7 Rf8 Rf5 Ne8 Kc8 Bg3 Bb8 Rd7 Bd6 Qe6 Ra5 Be1 Bh2 Bg3 Rd5 Bgb8 Bc7 Ne1 Rf5 Nd3 Re5 Rd6+
r1n3r1/1P1K1n1N/2r4n/n4Rb1/1B1rkNRr/6P1/1q1P1PbB/3n2Rn w - - 0 1 legal: proof: e4 e5 b4 a5 c4 g5 h4 gxh4 Bb2 d5 c5 f5 Qc1 f4 Kd1 f3 Qc3 b6 Kc1 dxe4 b5 Qd3 Qb4 Qd8 cxb6 e3 Be2 e4 Be5 axb4 Bh2 fxe2 g3 Bg4 Kb2 Be6 Kc1 Bc8 Kb2 Kf7 Kb3 Kg6 Kc4 Kf5 a4 e1N b7 c5 b6 h5 Kb5 b3 a5 b2 a6 c4 a7 h3 Nc3 b1N Ra3 e2 Ra1 h4 Ra5 e3 Ra6 Bh6 Ra5 Nd7 b8B Nd3 Kc6+ N3e5+ Kd6 e1R b7 e2 Ra6 Qb6+ Kd5 Qb2 Kd6 Nf7+ Kc7 Rc1 Rd6 e1R Ra6 Nb6 Ne4 c3 Ne2 c2 Nf6 Bg5 Ng1 Nc3 Nh5 Nd1 Ra5+ Ke4 Ra3 Ngh6 Ng7 Rg8 Ne8 Bd7 Ra1 Nc8 Ra3 Bc6 Rf3 Re3 Ne2 Rd3 Rg1 Rd4 Rf5 Bd5 Nf4 Bc6 Rf1 Bd5 Bg1 h2 Kd7 h1R Bh2 h3 Be5 Ra1 Rg1 c1N Bf6 Ra6 Be7 Nb3 Bb4 Na5 Nf6+ Kf3 Nh7 Rc6 Rf1 Ke4 Bg1 Rb8 a8R Rh2 Ra6 Ra8 Rb6 Rg2 Rb5 h2 Rc5 h1N Rc4 Rh2 Re1+ Ne3 Ra1 Rh3 Bh2 Rh4 Rg1 Nd1 Rc5 Bc4+ Rcd5 Bf1 Rd6 Rdc4 Rg6 Bg2 Rg7 Bf6 Rg4 Bg5 Be7 Ra4 Bc5 Rc4 Bb4 Rd4+
1N6/Pbq2R1K/3P3N/2rbP2k/1rp1P3/n2nRr1B/n2Nb1q1/r4qB1 w - - 0 1 legal: proof: b4 d5 h4 e5 d4 g5 c4 dxc4 d5 gxh4 Qd4 exd4 b5 Bh6 e4 Be3 b6 axb6 fxe3 b5 Rh2 b4 Rh3 Nc6 Rh1 Nb8 Kd2 h5 g4 c5 a4 f5 d6 Kf7 e5 Kg6 g5 b5 a5 c3+ Kd3 f4 Ke4 d3 a6 b3 Rh3 c2 Nd2 b2 Ra2 b1N Ne2 b4 Ra5 b3 Ra3 f3 Bb2 c1R Bd4 f2 Rh1 h3 Ng1 b2 Nb3 h2 Ne2 h4 Bg2 f1Q Nc3 h3 Na2 d2 Bf3 d1B Be2 Nf6+ Kd3 Ne4 Nd2 Nec3 Nc4 Bb7 Nb4 Qc7 Nd2 Na2 Nc6 Nd7 Ke4 Rhf8 Bg4 Be2 a7 c4 Bf5+ Kh5 g6 Rac8 g7 Re1 Rb3 Na3 g8N Ra1 Nh6 b1R Rg1 Rf7 Rg7 Rf6 Rd3 Rb4 Rf7 Qg2+ Kf4 h1Q Nb8 h2 Rb3 Nc5 Rc3 Re6 Bh3 Nd3+ Kf5 Ree8 Kf6 Rf8 Rb3 Qgf1+ Kg7 Qhg2+ Kh7 h1B Bc5 Qg3 Rc3 Bhd5 e4 Qh2 Bg1 Qhg2 Re7 Rf3 Rf7 Qa5 Rb3 Rc5 Rc3 Qc7 Rb3 Nb2 Re3 Nd3
Nr2q3/2rb3p/Pq3K2/q1P3P1/2R1bnB1/B2nbP1q/2rN1k2/N3r1R1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 exf5 axb4 d4 cxd4 h4 g5 Qf3 gxh4 Qa3 bxa3 Ke2 Kf7 Kf3 Kf6 Kf4 b5 c4 d5 g4 e5+ Kf3 h3 c5 d3 a5 d2 a6 Kg5 f6 Kh4 f7 d1Q+ Ke3 e4 Kf4 e3 Ke5 b4 f3 Kg3 Nc3 b3 Bd2 a2 Bb5 d4 Bf1 b2 Nb5 b1B Bg2 h2 Ne2+ Kf2 Ng3 d3 Bh3 e2 Bh6 e1R+ Ne2 d2 Nc3 Qb3 Bf1 d1R Bc1 Rd2 Bg2 Nf6 Bf1 Rc2 Ba3 Ra7 Rg1 h1Q Bg2 Nd5 Bh3 Bh6 f8N Nf4 Nd7 Rc7 Nb6 Qe8+ Kf6 Nc6 Nd4 Bd7 Na8 Qb6 Nb3 Qh2 Nd2 Qg2 Nb5 Qg3 Nd4 Ne5+ Ne6 Ned3 g5 Bg7+ Kf5 Bd4 Bg4 Be3 Kf6 Qbb8 Nd4 Qh3 N4b3 Qb6+ Be6 Qeh5 Rg4 Rb8 Rg1 Qe8 Rg4 Rb2 Rg1 Bc2 Rc1 Bb1 Rc2 a1Q Rc4 Qa2 Na1 Rc2 Bc1 Qaa5 Ba3 Ba2 Rd4 Bd5 Rc4 B5c6 Bg4 Be4+
2q4N/3pNb2/7K/1bP1bn2/br1P3B/n1bn1b1n/BRRNPP2/k3n3 w - - 0 1 legal: proof: g4 c5 b4 cxb4 g5 a5 g6 e5 d3 b3 Nc3 e4 Nb1 fxg6 Qd2 g5 Qc3 g4 Qb4 axb4 a4 g5 h4 b5 c3 g3 d4 g4 Na3 Ra6 Ra2 Rg6 Rd2 Rg5 Rd3 exd3 hxg5 Ba6 Rh6 Bb7 Rh1 Bc8 Kd2 Kf7 Ke3 Ke6 Kf4 Kd5 a5 h5 a6 h4 a7 h3 a8R h2 g6 d2 g7 d1B Nb1 Kc4 Nf3 b2 Ne1 Kb3 c4 g2 Rg1 g3 Nf3 Nh6 g8N Nf5 Na3 Ka2 Nf6 b1N Kg5 b3 Ra6 b4 Bf4 b2 Ra8 b3 Bc7 Nd2 Ne5 b1N Ng6 b2 Ne5 Ba4 Nc6 Ba6 Be5 B6b5 Ra5 Ka1 Ra6 Qc8 Na7 Nc6 Bf4 Nb4 Rb6 Nd3 Ne4 Bb4 c5 Bc3 Nc4 Na3 Nc6 b1B Ned6 Ba2 Nf7 Nf3+ Kg6 Nfe1 Nd2 Rd8 Nh8 Bf7+ Kg5 Rf8 Ne7 Rd8 Rh1 g1N Bh3 g2 Bg3 Rf8 Bg4 Rd8 Bh4 Nh3+ Kf6 Re8 Bf3 Rd8 Bd5 Rf8 Rf1 g1B Ba2 h1B Rb8 Bh2 Rb6 Ng1 Kg5 Bf3 Rb8 Be5 Rb6 Ba6 Rb2 B6b5 Rc2 Qa6 Rb2 Rb8 Rc2 Qc8 Rb2 Ng7 Kh6 Nh3 Rg1 Rb7 Rc2 Rb6+ Rg6 Rb8 Rb6 Nf5+ Kh7 Bbc6 Rb3 Rb4 Rbb2 Be6 Kg6 Bcb5 Kh7 Bed5 Kg6 Bf7+ Kh7 Ng7 Kh6 Nf5+
1n1q1r2/nP2qbp1/2n1b3/KBPN1PpR/N7/n3Pn2/2RB4/k2rq1R1 w - - 0 1 illegal: No possible last move
q4N2/3n1b1n/B4P2/b1P1P1pr/4q1kn/2qR4/1PBNrnp1/b2K2BR w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 a4 c5 a5 c4 Qd3 cxd3 a6 bxa6 h5 a5 Kd2 a4 Kd1 Qb6 Ke1 Qg6 hxg6 f5 Rh6 fxg4 Rh5 Ke7 Rh1 Ke8 f4 Ke7 c4 Kf6 e4 h5 f5 a5 g7 d5 Bf4 g3 Be3 d2+ Ke2 d1N Kd2 d3 Nf3 a3 Bc5 h4 Ne5 a4 Nf3 d4 Bb6 a2 Rh2 a3 Be2 h3 Rf2 h2 Bc7 h1Q Ng1 Rh5 Rf1 Be6 Rf4 Bb4+ Kc1 d2+ Kc2 d3+ Kb3 Ne3 Bf1 d1N Rf3 d2 Bh3 Ng2 Kc2 Nd7 c5 Ba5 Rb3 Nf2 Rd3 Bf7 Rd4 Re8 Nf3 Nh4 Bf1 Nh3 Ba6 g2 Bd6 Qe1 Ne5 Qe3 Kd1 Qc3 Rd3 Re7 Ke2 Re8 Ng6 d1Q+ Ke3 Re5 Nd2 Qa4 Rh1 a1Q Ke2 a2 Nf8 Qb1 Bc7 a1B Bb8 Re7 Bh2 Qc6 Bg1 Qa8 Bh2 Qbc2 Bg1 Ke5 Ke1 Ngf6 g8B Kf4 Bh7 Kg4 Bg6 Nh7 f6 Re5 Ke2 Rf5 e5 Rf2+ Ke1 Qa4 Be4 Qac4 Kd1 Re2 Rd4 Qcd5 Bc2+ Qe4 Rd3 Nf2+
rn3b1N/1R2Pq1P/1p3k2/N7/1BqP4/1P3B1r/1p2qn2/bKRnr1Nq w - - 0 1 legal: proof: f4 d5 g4 e5 c4 dxc4 a4 exf4 a5 h5 a6 hxg4 Qc2 b6 Qb3 Kd7 Qd1 Ke8 b3 Bb7 axb7 a5 Ra3 a4 Ra1 a3 Qc2 Be7 Ra2 Bf6 Qc3 Bd4 Qc2 Ba1 Qb2 axb2 Kd1 Ke7 Kc2 c5 h4 g5 e4 f5 d4 c3 e5 g3 h5 g2 h6 f3 e6 g4 Ra6 c4 Bd2 f2 Bf4 g3 Ra4 Qd7 Bc1 f4 Nf3 g1Q Bd2 g2 Nh2 f3 Bc1 Kf6 Bd3 f1N Bh7 f2 Be4 Qf7 Na3 Ne3+ Kb1 f1Q e7 Nd1 Nf3 Qe2 Ra7 Rh7 Bd2 c2+ Ka2 c1R Bb4 c3 Nc4 c2 Na5 Qgf1 Ng1 Qec4 Bf3 Qfe2 Rh5 Rb1 Rc5 c1B Rc7 Kf5 Rc6 Nf6 Rc8 Ne4 Rc6 Rg7 h7 Rg3 Rc8 Kf6 Rc5 Na6 b8N Bh6 Rb7 Nef2 Nbc6 Rh3 Ne5 Nb8 Ng6 Bf8 Nh8 Qee6 Ne2 g1Q Rc8 Qh1 Ng1 Qee2 Rcc7 Rc1 Rc8 Rc3 Kb1 Re3 Rc5 Qf1 Rc8 Re1 Rcc7 Qfe2 Rc6+ Qce6 Rc1 Q6c4
1R3r2/r6p/R1n1P2B/P2bk1P1/2b3Pq/B4B1N/qbp1r1K1/rrNr4 w - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 b4 a5 f3 axb4 Qb3 e5 Qe3 Nc6 Qf4 gxf4 Bg2 Nd4 Bh3 Ne6 Bf1 Ng5 hxg5 e4 Rh4 exf3 Rh3 Qf6 Rh1 Qd8 Kf2 Kd7 d4 Kd6 e4 c5 a4 b5 d5 f5 a5 b3 Bd3 b2 Kf1 f2 Nf3 b4 Rh5 b3 Rh4 c3 Bc2 c4 Ne1 Qe7 Bd3 c2 Ra3 c3 Rh2 Bg7 Rh6+ Be6 Rh3 Ke5 d6 Bd5 d7 Ra7 Nd2 b1Q d8B b2 Rb3 Qa2 Ra3 b1R Kg2 f1R Rb3 f3+ Kg3 f4+ Kh2 f2 Rh6 f3 Ba3 c1R Ng2 c2 Ra6 Rfe1 Rb8 f1R Nf4 f2 Nh3 Rcd1 Kg2 Re2 Nb3 Rfe1 Nc1 f1B+ Kf3 Qe6 Bde7 Qh6 Bf8 Qh4 Bc4 Bf6 Bh6 Ne7 Bb5 Rf8 Bc6 Red2 Ba8 Nc6 Bb7 Bfc4 Ba8 Rd3+ Kg2 Ra1 Bb7 Rb3 Ba8 Rbb1 Bb7 Ke6 Ba8 Bb2 Bb7 Bb3 Ba8 Bdc4 e5 Kd5 e6 Ke5 Bb7 Re2+ Nf2 Nb4 Bd5 Nc6 Bf3 Ree1 Nh3 Bd5 Kh2 Bbc4 Kg2 Re2+
r2B1bn1/3p3p/k1N2N2/6P1/1Pq3pK/1PnqBN1b/3bR2P/2Rr1rq1 w - - 0 1 legal: proof: e4 f5 d4 b5 a3 b4 axb4 c6 d5 cxd5 Ne2 dxe4 Ng1 e3 f4 g6 g4 Nc6 g5 Nb8 Qg4 Ba6 Bd3 fxg4 f5 Bb7 f6 Bc8 Bf5 gxf5 c4 e5 b3 a5 c5 a4 c6 a3 c7 e2 Kf2 e1B+ Kg2 e4 Nh3 f4 Nc3 e3 Rf1 f3+ Kg1 f2+ Kg2 a2 Kg3 e2 Rg1 f1Q+ Nf2 Bb7 c8N Qc7+ Bf4 Kd8 f7 Nc6 Be5 Nd4 Nb5 Bd2 Ne4 e1R Bf4 Qcc4 Rc1 a1Q Ne7 Rd1 Nf6 Bg2 Kh4 Ne2 Nd4 Nc3 Be3 Kc7 Nec6 Kb7 Nf3 Qfd3 Re1 Bh3 Re2 Qa7 Re1 Ka6 Re2 Bg7 f8B Qad4 Bf4 Qg1 Be7 Rf8 Be3 Rf7 Nh5 Bf8 Bd8 Rf4 Nf6 Rf5 Nfe5 Rff1 Nf3 Be7 Ba5 Nh6 Nfe5 Ra8 Nf3 Ng8 Bd8 Bf8
k7/N3RRPq/Pn2r1BB/2nrN1bb/2p1P2K/2nR3p/2n2p1P/2n4r w - - 0 1 legal: proof: c4 e5 b4 e4 b5 a6 d3 axb5 dxe4 bxc4 Bb2 c3 Ba3 Qe7 Bc1 Qd8 e3 g5 Qd3 f5 Qe2 f4 Qd1 fxe3 f4 Ke7 f5 Kf7 Qg4 Ke8 Qf4 gxf4 a4 h5 g4 c5 f6 d5 f7+ Kd7 g5 Kc6 a5 b5 g6 Kb7 g7 h4 Ra2 h3 Ra4 f3 Bd3 c2 Kf1 e2+ Kf2 e1N Kg3 c4 Bb2 c1N Nc3 f2 Ba3 b4 Bb2 d4 Nge2 b3 Ng1 Nd7 Ra3 Nc2 Ra2 Be7 f8R Rh5 Ba3 b2 Ra1 b1N Be2 d3 Ra2 d2 Ra1 d1R Rf7 Ngf6 Nf3 Ra6 Ne5 Nc5 Nb5 Nfd7 Na7 Qh8 Ra2 Rf5 Bh5 Re6 Bg6 Bg5 a6+ Ka8 Rb2 Qh6 Rb7 Nb6 Rbe7 Qh7 Bb4 Rf1 Bd2 Nc3 Kg4 Re1 Rg1 Bd7 Rg3 Rh1 Rd3 Ba4 Nd7 Rd5 Ne5 Ne1 Kg3 Bd1 Be3 Bh5 Bf4 Nc2 Bd2 Be3 Kh4 Bd4 Bg5 Be3 Bh6 Bg5+
1rr5/KB2pPr1/3n1rn1/1p1RR1bN/B2qPpN1/1bB1P2r/7P/2k3n1 w - - 0 1 illegal: No proof kernel
n1n1b1B1/bNqP2q1/Nr2p1p1/P3R3/2npP3/P3N3/1n2b1R1/2Kr1B1k w - - 0 1 legal: proof: g4 c5 h4 a5 d4 f6 g5 fxg5 b4 gxh4 bxa5 h3 c4 d6 d5 Be6 Qd4 Bg4 Ba3 cxd4 c5 Be6 c6 Bc8 Bc5 dxc5 Kd2 Kf7 f4 Kf6 e4 b5 a3 h5 c7 h2 d6 e6 f5 Ke5 f6 Kf4 f7 Kg3 Kc1 b4 Nh3 b3 Nf2 g6 Bg2 c4 Rg1 h1Q Bf1+ Kh2 Be2 b2+ Kd2 h4 Nd3 h3 Rg4 c3+ Kc2 Ra6 Bf3 Nd7 Ra2 Rb6 Rg5 Ne7 Nd2 b1N Nb3 Nd2 Nbc5 Nc4 Ne1 Rh4 Kd1+ c2+ Kc1 Qf1 Bd1 Kh1 Bh5 h2 Be2 Qf6 Rb2 Qg7 Ng2 Bb7 c8B Qc7 Bd3 Bc6 Na6 Ba4 Bb7 Nc8 Re5 Rf4 Ne3 Rf1+ Nd1 Re1 Bf1 Rb4 Bc6 Ndb6 Be8 Na8 Ra2 Be7 f8N Rb3 Bf7 Be8 Bg8 Rb2 d7 Bc5 Nh7 Ba7 Ng5 Rb6 Rb2 Kg1 Ra2 h1B Nf7 Bf3 Nd6 Kh1 Nb7 Bg4 Rb2 Bh5 Rb3 Bg4 Rg3 Be2 Rg2 N4d6 Kd2 c1N Rf2 Nd3 Ne3 Nc4+ Kc2 Rd1 Rg2 N8d6 Nd5 Ndb2 Ne3 Rd2+ Kb1 Nc8 Kc1 Rd1+
q2n4/1R1nN3/PNp1rk2/r1PR1p1K/1pBqb3/P1P3n1/B2r2q1/n3B3 w - - 0 1 illegal: Other
3n1kbr/2NKnb1B/P5p1/6P1/b2Pqp2/P1q3BN/1p1pR1Rr/1B5b w - - 0 1 illegal: No proof kernel
b2n2rq/1b3ppP/BR2NrpB/3p2bb/4Pqk1/5N2/2K2PPR/1n3R2 w - - 0 1 legal: proof: b4 a5 a4 axb4 d4 e5 a5 exd4 Qd3 b6 Qg6 hxg6 axb6 cxb6 Bd2 b5 Bg5 Qa5 Bc1 Qd8 Kd2 Ke7 h4 Ke6 c4 Kf5 h5 b3 e3 b2 c5 b4 c6 b3 h6 d3 c7 Ra6 h7 Bb7 c8R Ne7 Na3 b1B Nf3 b2 Ng5 Nbc6 Rb8 Nd5 Rh6 Be7 Nc4 Rg8 Nh3 Kg4 Rh5 Bg5 Rh6 Nc3 Ra3 Bc2 Rh5 b1Q Nf4 Qb4 Ra1 d5 Rh3 Ba4 Rh2 Qe8 Ne6 Nd8 Rb1 Bac6 Ra1 Ba8 Rb6 Nb1+ Kd1 d2 Kc2 Bcb7 Ne5+ Kf5 Be2 Qf4 Nf3 Kg4 e4 Qf8 Rb5 Rd6 Rb6 Qe8 Ba6 d1B+ Kb2 Be2 Kc2 Qf8 Nc7 Rf6 Ne6 Qe8 Be3 Nd2 Rg1 Nb1 Rf1 Qe5 Rg1 Bh4 Re1 Rh8 Bf4 Kh5 Bh6 Qf4 Ng1 Bg4 Nh3 Bg5 Rd1 Kh4 Rf1 Bh5 Ng1+ Kg4 Bb5 Qe7 Nf3 Re8 Nc5 Qf8 Ne6 Qh8 Ba6 Rg8
4N3/q1n3r1/2R2rbp/rnq2BP1/kP1P4/3BN1q1/bn1bR2P/r1Br1K2 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 bxa4 f5 d5 f6 dxc4 Nh3 e4 Ng1 gxf6 Qb3 f5 Qc3 f4 Qf3 exf3 g4 Kd7 d4 Kc6 e4 Kb5 g5 f5 e5 c5 e6 a5 b3 a3 e7 a4 e8B+ Nc6 Be2 a2 Bf1 h6 Be3 f2+ Ke2 f3+ Kd2 f4 Be2 f1B Ke1 a3 Bf2 Rh7 Bh4 f2+ Kd2 f3 Nh3 Rg7 Bf7 Bf5 Rg1 Qd6 Rg4 Bg6 Re4 Nf6 Ke3 Na7 Re7 Nd5+ Kd2 Nc7 Bd1 c3+ Ke3 c2 Bd5 c1N Rf7 c4 Re7 c3 Nf4 c2 Nh3 Nd3 Re5 c1Q+ Nd2 Nb2 Nf4 Bc4 Be2 f1R Bf2 Rd1 Bd3 Kb4 Bg8 Nab5 Nh5 Be6 Bg3 f2 Ke2 f1R Nf6 Ra6 Rb1 a1Q Ne8 a2 Nc4 Rf6 Bf4 Qc3 Bf5 Qg3 Rc1 Qb6 Rc2 Qc1 Rc5 a1R Rc6 Qa7 Bd3 Bd5 Be6 R6a5 Bef5 Bd6 Rd2 Qc3 Rc2 Bdf7 Bd2 Bf4 Bc1 Bd2 Ne3 Be1 Kf1 Qcc5 Rg2 Ka3 b4 Ba2 Rd2 Ka4 Re2 Bd2+
5nr1/bNRbnB1p/1nb4K/RrBq2rP/1P2nP2/2B2P2/2Nb3r/3kb3 w - - 0 1 illegal: Other
2Nb1nK1/b6b/3p4/1P1PP1bN/1R1b1qPb/4B2n/b1kb1n1r/R3rB1N w - - 0 1 illegal: No proof kernel
3B2b1/1bPq3k/4N2p/n1pBrPKP/7n/P1q1N3/1nnnr1Rb/2R1N2r w - - 0 1 illegal: No possible last move, all moves rejected
qBr4K/BnRn1qPp/1qq1Pn1p/P1N1r3/3r3P/7N/1b2b1Rb/3k1B2 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 Qa4 a6 Qa3 axb5 Qh3 b4 Qh6 gxh6 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 Ka4 e4 c5 g4 b5 h4 f5 d4 b3 g5 b4 g6 b2 a3 Kb3 g7 Kc2 d5 c3 a4 c4 d6 f3 a5 b3 d7 f2 Bg2 f1N Ra3 f4 Rh3 f3 Rh1 f2 Be3 Nd2 Rh2 f1Q Ba7 Ba6 Nf3 Nf6 Bd4 Kd1 Ne1 c2 Bh1 c1Q Nc2 c3 Rg2 Be2 Ne1 c2 Nd3 Bd6+ Ke6 Nc4 Kf7 Re8 Nd2 b1R e5 b2 Nc5 Qc8 d8B Nbd7 Bg1 Qc6 Nde4 Rc8 Ra1 Qa8 Bc7 Red8 e6 Bh2 Bb8 Nd6+ Ke7 Qff4 Ng5 Nb7 Kf7 Qc7 Bf2 Q1f4 Ra4 c1B Nh3 Qc6 Rc4 Ra1 Bg1 b1Q Bd4 Bb2 Be3 Ne8+ Kg8 Qf7+ Kh8 Ra4 Rc2 Rd4 Rg3 Rd5 Bd4 Re5 Bg2 Ba3 Bf1 Nb6 Na4 Qc4 Bc5 Rd4 Rg2 Nd7 Bca7 Qb6 Rc3 Bb2 Rc2 Qcb5 Rc7 Q5c6 Nc5 Nef6+
1r2nB1b/1R2r3/2k1n2b/qbn3r1/Bp1pP2P/2qN4/q2PP3/N1nNK2R w - - 0 1 illegal: Other
1B1k1BnK/2qp4/4P2n/1Pr4b/1p1q4/RPb4R/BP1qbNn1/nr4Nq w - - 0 1 illegal: Other
2b5/1PN2Rp1/N1B2pb1/qP1NpPrB/3r4/n1bqP3/5q1K/qR1rnk2 w - - 0 2 illegal: Other
N1q1r3/1q1nn2R/3n1PkP/2pB4/2PPpBN1/2q3N1/nrpbb1RK/3r4 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 d4 Qf3 fxe6 Bd3 e5 Bf1 e4 Qc3 dxc3 h4 Kf7 a4 c5 f4 b5 Kf2 g5 Kg2 e5 d4 e3 h5 b3 a5 g3 f5 b4 f6 e2 a6 e1Q a7 g4 Ba3 c2 Nh3 e4 Rg1 b2 Kh1 g2+ Kh2 b3 Nf2 Ne7 Be2 Qc3 Nh3 Nd7 Ra2 Bh6 Rc1 g1N Ra1 g3+ Kg2 Re8 Nf2 Nh3 Nd1 Rb8 a8N Ng5 Nd2 b1N Kg1 b2 Ne3 g2 Kh2 g1R Bg4 Rd1 Be6+ Kf8 Ng2 Re1 Bg8 Nb6 Nf3 Qe3 Rd1 Nf7 Ng1 Bg4 Rd2 Nc3 Ne2 b1Q Ng3 Nd6 Bd5 Na2 Bc1 Qc3 Ne3 Qc8 Rg2 Be2 Ng4 Nd7 Kh3 Qb6 Be3 Qba6 Rd1 Rb2 Bc1 Rg1 Rf1 Qb6 Rf5 Bg5 Kh2 Rd1 Bd2 Qbb7 h6 Ng8 Re5 Bf4 Re6 Kf7 Re7+ Kg6 Rh7 Ne7 Bc1 Be3 Bd2 Bf2 Be3 Be1 Bf4 Bd2
4n1qr/r1bp2pr/bN2R2n/2k4B/1RP1P3/1rb1K3/2PN2Pp/1BB2n1q w - - 0 1 illegal: Other
Nb3r2/r1p5/1B2r1p1/1NBB2Pk/bPKn1bRr/P1pq1R2/2P1p2n/1r6 w - - 1 2 illegal: No proof kernel
2Bb3K/3pP3/bBRN3p/p4r1B/1P1n1r1P/n3PR2/p2nkrb1/1Nq1r3 w - - 0 1 illegal: Other
1RKnq3/1b4Bp/1q2n1k1/1R4pp/BP4Pb/r2P4/rp2NPnN/3q1R1n w - - 0 1 illegal: No proof kernel
3r1b2/pP3P1B/nb1n1p1k/Np1p4/2RB1P1N/1r1BRqnb/1P2n1qK/8 w - - 0 2 illegal: Other
6K1/1n2pr2/4r3/p1RPPBPk/1r1P1b1n/NqNn3R/2q1rp1p/2BR1b2 w - - 0 1 illegal: Other
2q5/n1K1N3/1B6/1Ppbn1p1/2NkpPRr/1R3r1n/pqr1P1Pb/2BN1r2 w - - 1 2 illegal: No proof kernel forced: bxLB
k5Nr/p1B2r2/1bpq3R/K2P1p2/1nN1nP2/1NPr1pR1/2b1P2q/3B1nn1 w - - 1 2 legal: proof: b4 e5 h4 d5 a4 b5 f4 bxa4 h5 d4 c3 e4 Ra2 d3 Qb3 g6 Rb2 gxh5 Rc2 dxc2 Qd5 h4 Qh5 Qf6 Qg4 Qd8 Qf3 exf3 d4 Kd7 Kd2 Kc6 g4 Kb7 b5 h5 d5 a3 b6 c6 g5 a2 g6 a1N g7 h3 Na3 h2 Kd3 h4 Kc4 Bf5 Nb5 Qd6 Ba3 c1R Bc5 Nf6 Kb4 Rd1 g8R Bc2 Nd4 Na6+ Ka5 Rd3 Nh3 Nb4 Ng5 h3 Nh7 Ne4 Nf6 Bg7 Nb3 Rf8 Bd4 Kb8 Be5 Ka8 Rg1 h1N Rg6 h2 Rh6 Nhf2 Bh3 h1Q Bf5 Qh2 b7+ Kb8 Bh7 Nh3 Bg6 Ng1 Bf5 Kc7 b8N Kb7 Nbd7 Ka8 Bh7 Bb1 Bg6 Nac2 Bf5 Ne3 Nb6+ Kb8 Bh7 Nf1 Nc4 Bc2 Bf5 Ka8 Bg6 Qd8+ Bc7 Qd6 Bh7 Rb8 Bg6 Bf8 Bf5 Rb7 Rg3 Bg7 Ng8 f6 Bb8 Rf7 Bc7 Bf8 Bc8 Bg7 Ba6 f5 Bb5 Bd4 Ba4 Bb1 Na1 Bf2 Bd1 Bc2 Nb3 Bb6+
1r2B1b1/8/n1P1RPpn/1p4PB/1kn2B1N/p1b4p/rPq1rnNp/1R2K3 w - - 0 2 illegal: No proof kernel
R1N4r/4PKpB/4n1P1/1q4p1/b1NPpB1p/2b1pn1b/1N1bP2p/R1r4k w - - 1 2 illegal: Other
3B4/rrRN1n2/1rb3q1/pbQ2p2/PP3qb1/q1R1Q2R/3PP3/n1K2k2 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 c5 h5 gxh5 b6 Bg2 bxc5 Be4 Qd6 Bd3 Qd8 h4 g5 b4 g4 Bc4 Be7 Bb3 Bf6 Na3 Bg5 Nc4 dxc4 hxg5 cxb3 a4 Kd7 h6 Ke6 g6 Kf5 g7 a5 h7 c4 Ba3 c5 Rh4 f3 Rh2 Kf4 Bc1 Kg3 Rh4 Kg2 Bb2 g3 Rb1 c3 Re4 c4 Bc1 c2 Rh4 b2 Rf4 c3 Ra1 b1B Bb2 c1Q Ra3 c2 Re3 Nc6 Nh3 Ra7 Ra3 Qd4 Ba1 Nh6 g8Q Bg4 Qg7 f5 Bc3 Nf7 Nf2 Rb8 h8R Rbb7 Ra1 Qa3 Rh3 c1R Qf8 Bd3 Qe7 Bb5 Qe3 Qc4 Be5 Nd4 Bf6 Nb3 Nd3 Rc2 Rb1 Na1 Qc1 f2+ Kd1 f1B Rf3 Qf4 Ne5 Rc6 Bd8 Rf6 Nd7 Rfb6 Qb3 Kg1 Rc3 g2 Rb2 Kf2 Rbc2 g1Q Rc7 Qgg3 R2c3 Bg2 Qe6 Bgc6 Qe3+ Kf1 Qc2 Qb3 Kc1 Qe6 Qcd3 Qg6 Qd6 Qc4 Qdd4 Qa2 Qd5 Qf4 Qdc5 Qa3+
3b3Q/K1PRpkb1/Pr1BN2n/5P2/1p1b1qr1/1P3rBQ/4n3/1Q2n1r1 w - - 0 1 legal: proof: d4 h5 a4 a5 e4 c5 g4 cxd4 f4 f5 exf5 b6 g5 Kf7 f6 Ke6 f5+ Kd6 c3 Kc6 Be2 Ba6 Bg4 hxg4 Na3 Bd3 Nc2 Bf1 Nb4+ axb4 b3 Bc4 Ra3 bxa3 g6 Bf7 gxf7 a2 Be3 a1R Bh6 Kc7 Bc1 Kc6 Kf2 d5 h4 Kd7 a5 g5 c4 g3+ Kf3 g4+ Kf4 b5 Ke5 b4 h5 g2 h6 d3 Kd4 d2 Kc5 g3 h7 d4 a6 d3 Ne2 g1B+ Kb5 g2 c5 Bd4 Re1 g1B Qc2 d1R Qc3 d2 Qc4 Nc6 Nf4 Qc7 Qc2 Ne5 Ne6 Nh6 Qb1 Rg8 h8Q Bg7 f8Q Nf3 f7 Qf4 Kb6 Rb8+ Ka7 Rb6 Bb2 Rc1 Rd1 Ne1 Qa8 Rc4 f8B Rc3 Qf3 Ke8 c6 Kf7 Qh3 Rf3 Bc1 Bge5 Bb2 Rg4 Bg7 Bc7 Be5 Bd8 Bd6 Bg7 Bbe5 Bd4 Rc1 d1N c7 Nc3 Rd1 Ne2 Rd2 Qg5 Bg3 Qf4 Bc5 Bf2 Rd7 Bfd4 Bd6 Nd3 Qb2 Rg1 Qb1 Ne1
Qq2b1Q1/1Nk1r3/2pbPP2/b2bb3/P1Bb1P1K/2N1npR1/1Qq3b1/8 w - - 0 1 legal: proof: b4 d5 h4 a5 c4 axb4 f4 dxc4 a4 g5 f5 e5 Ra3 Bd7 Rf3 Bc8 Rf4 exf4 Nh3 b5 Rh2 g4 Ng1 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 f6 e4 Qd5 e5 Qd3 e6 Qd8 Ba3 Nc6 Bb2 Nd4 g3 f3 Bc3 Ne2 Be5 Nf4 gxf4 fxe5 Kf2 h5 Kg3 c6 d4 h4+ Kh2 c3 f6 e4 d5 b3 d6 h3 Kg3 b2 g6 e3 g7 h2 Qc1 e2 Na3 b1Q Qb2 e1B+ Qf2 c2 Ne2 c1B Rg1 h1B Bh3 b4 Rg2 b3 Ng1 b2 Nb5 Ba5 Qa7 Bd7 Qf2 Qc2 Qc5 b1B Na7 Nh6 g8Q Nf5+ Kh2 Bb2 Qd5 Ne3 Kg3 Ba2 Qb5 Qb8 Nc8 Kd8 Ne2 Rh7 Nc3 Be8 d7 Bd5 Nd6 Re7 Nb7+ Kc7 Kh4 g3 Bf5 Ba1 Bd3 Bb2 Rg1 g2 Bc4 Ba1 Rb1 g1B Qb2 Bg2 Re1 Nd1 Re5 Bd4 Rg5 Ne3 Rg6 Rg7 Rg3 Bd6 Qc1 Kb6 d8Q+ Rc7 Qc8 Re7 Qd2 Qa7 Qa8 Kc7 Qc1 Qb8 Qb1 Bb2 Qa1 Bba3 Qa2 B6e5 Qb2 Bad6
3r2nn/1knp2Nq/3P4/rb3Q2/PP1bR1K1/4Rqp1/B3p1qP/2R2Q2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 c5 c3 f5 exf5 c4 Na3 b5 Qc2 axb4 Qd1 b3 Rb1 b4 cxb4 c3 Bb2 cxb2 Rc1 b1Q Rc5 Qb2 Ra5 Qc3 Nc2 Qb2 Na1 Qxa1 Ke2 e5 d4 g5 f4 b2 d5 b1Q f6 g3 Kf3 g4+ Ke2 g2 f5 e4 d6 e3 Qb3 g3 Kf3 e2 Qc2 Qb6 f7+ Kd8 f6 Qf2+ Kg4 Bg7 Rd5 Ra5 Qf5 Ba6 Rd3 Kc8 f8R+ Kb7 f7 Bd4 Nf3 g1N Re3 Bb5 Bg2 Na6 Ng5+ Nf3 Rc1 Nc7 Ne6 Qc3 Rc8 Qc6 f8Q Ng5 Re8 Nf7 Bd5 Qc2 Ba2 Qcg2 Qh5 Qh7 Ng7 Ne7 Qg6 Rg8 Qf5 Nh8 Q8f7 Rf8 Q7f6 Ng8 R8e4 Rd8 Qf7 Qfg1 Qf1 Q1f2 Qf5 Qff3+
6QB/4Q1p1/p1K1rq1q/R3qPN1/2kb1q1P/n1r1P2N/3P1Qp1/1qb5 w - - 0 1 illegal: No possible last move
nRb4k/p3QK2/2rQ1P1p/3rr3/2B1PP2/4nQrp/Pn3nRN/7r w - - 0 1 legal: proof: h4 g5 d4 gxh4 f4 e6 f5 Bh6 g3 Bg5 Nc3 Bf4 d5 e5 Nb5 Qg5 Nd4 exd4 Rh3 Qf6 Rh1 Qd8 c4 c5 Be3 f6 Bd2 Qb6 Bc1 Qc6 dxc6 b5 Bd2 bxc4 Be3 Be5 Bg5 Bf4 gxf4 fxg5 Kd2 Kf7 e4 Kg7 b4 d5 b5 h6 b6 h3 b7 d3 Ke3 d2 c7 d4+ Kf3 d3 Kg4 c3 Kh5 c2 Qg4 c1R Nf3 d1N Ng1 d2 Qg3 g4 Qf3 c4 Qe3 g3 Bd3 c3 Qd4+ Nf6+ Kh4 g2 Rh2 c2 Qb6 Nd5 Kh5 Nb2 Qb4 d1N Rb1 Nd7 b8Q Nf2 Nf3 g1R Bc4 Rd8 f6+ Kh8 Qe7 Ne3 Rg2 Nb6 Kg6 Rd5 Kf7 Rcf1 Nh2 c1R Qb7 Rb8 Qc6 Na8 Qcd7 Rbb5 Qdd6 Na4 Rb3 Nb2 Rb4 Rbc5 Rb8 Re5 Qd1 Rc6 Qf3 Rfd1 Qd6 Rh1 Qe7 Rd8 Qd6 Rc3 Qe7 Bb7 c8Q Ba6 Qce6 Bc8 Q6d6 Rd3 Qb4 Rg8 Qa3 Rdd5 Qad6 Rg3
2b5/1PnPP2k/1Qp1pq1r/5b2/1p4q1/4PKp1/2rQN1Br/2n2QRR w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e6 cxd5 b6 g4 hxg4 f5 Bb4 f6 Be7 fxe7 Kd7 b4 a5 Nc3 b5 Na2 Qe8 Ba3 Qd8 Nc1 bxa4 Nb3 axb3 b5 Ra7 Bd6 Ra8 Bb4 axb4 Kf2 Ke8 d4 f5 h4 Kf7 h5 g5 h6 Kg6 b6 b2 b7 b1B e3 f4 d6 c6 h7 f3 d5 g3+ Ke1 g4 d7 f2+ Ke2 g2 d6 g3 Qa4 Nh6 Rh4 Nf5 Qb5 Nd4+ Kd1 Qg8 d8Q Nb3 Ke2 Na6 d7 Bf5 Rd4 Nc7 Rh4 Ra2+ Kf3 Nc1 Ne2 g1R Bg2 Rc2 Rh1 Rd1 Qb6 Rdd2 Qe8+ Kg7 Rg1 Kh6 Qh5+ Kg7 Qh2 Kg6 Rh1 Qg7 Qg1 f1Q+ Qf2 Qd1 Qf1 Qf6 Rb1 Rd4 Ra1 Rh4 Rb1 Rh6 Rg1 Rd8 h8Q Rh2 Qh4 Rh8 Qhd4 R8h6 Qc3 Qdd4 Qd2 Kh7 Rh1 Nb3 Qf2 Qdh4 Rbg1 Nc1 Qf1 Qg4#
5r2/2pp1Pbr/1r3q2/KP2rnP1/3Q3B/q1B3pQ/R1pP1bNQ/5k2 w - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 Ba6 f4 Nh6 a4 Nc6 e5 Nd4 f5 Nb3 b5 Ng8 b6 Bb5 axb5 Nc5 Ra6 Ne4 Ra1 Nef6 exf6 Qb8 Bd3 Qc8 Bf1 Qd8 Bd3 g6 Bc2 Bg7 Ra3 Kf8 Re3 Bh6 Re6 fxe6 f7 Kg7 Be4 Kf6 Bc2 Ke5 f6 Bf8 Bf5 Kd6 g4 gxf5 Nc3 Ke5 Ne4 h5 g5 Kd5 Nf2 Kd6 Ng4 hxg4 h4 Ke5 b7 Kf4 b8B Kg3 h5 Kg2 h6 a5 h7 e5 Qb3 f4 Rh6 c3 Rh1 f3 Qb1 c2 Qa1 f2+ Ke2 f1R Kd3 a4 Kc4 a3 Kb4 a2 Nf3 e4 Qe5 a1Q Qc3 e5+ Qc5 e3 Ng1 e4 Ne2 Ne7 Bb2 Nf5 Bc3 Bg7 f8Q Ra6 Qd4 Rb6 Nf4+ Kf2 Ba7 Qa3+ Kc4 Ke1 Qfd6 e2 f7 e3 Rh3 Rf8 h8Q Rh1 Ng2+ Kf1 Qh2 e1R Rg3 e2 Q8h3 Qf6 Rd3 Qa1 Kb4 Qc1 Ka5 Qa3+ Qa4 Ra1 Re3 e1B Re8 Bf2 Ra8 Rb7 Be3 Re1 Bf4 Rb6 Bg3 Re5 Bh4 Rh8 Ra6 Rh7 Ra7 g3 Ra8 Re8 Ra6 Rf8 Ra8 Ke2 Ra7 Re1 Ra6 Kf1 Ra8 Qc5 Qd4 Re5 Ka4 Qd5 Kb4 Qde6 Ra2 Qd6+ Ka5 Qa3+
3r3N/B3q2p/PpP1r3/Q5rQ/1RBQ4/2P1bn2/1pPp2pr/3K2kb w - - 0 1 legal: proof: g4 c5 f4 g5 d4 e5 dxc5 exf4 a4 a5 h4 gxh4 Nd2 Na6 Ne4 Nc7 Rb1 Nb5 Ng3 Nc3 bxc3 fxg3 Rb4 axb4 e4 Ke7 g5 Ke6 a5 Ke5 a6 d5 g6 f5 g7 d4 Bb2 Kf4 e5 Ke3 e6 d3 e7 h3 e8Q+ Ne7 g8Q f4 Qd5 b3 Qb5 h2 Be2 f3 Ba3 b6 Qdd7 d2+ Kf1 f2 Qf5 b2 Qg4 Bb7 Qga4 Rg8 Qd7 Nc6 Nf3 Nd4 Nh4 Qe7 Ng6 Rd8 Bc4 Bh6 Qa5 Nf3 Nh8 Rg5 Qd6 Be4 c6 Bd5 Rg1 h1R Qd7 Rh4 Bd6 Re4 Bc7 Re6 Bb8 Be4 Ba7 Bd5 Kg2 f1R Rh1 Be4 Rh4 Rh1 Rg4 Rh2+ Kf1 Nh4 Rf4 Bh1 Qh5 Nf3 Rg4 Nh4 Qd4+ Kf3 Kg1 g2 Re4+ Kg3 Rg4+ Kh3 Kf2 Rgg6 Qd6 Be3+ Ke2 Rg5 Rf4 Kg3 Bd5 Nf5 Kd1 Nh4 Rb4+ Kf2 Bc4 Nf3 Qd4 Kg1
1qbrkbb1/2Pr1bR1/R2P3b/2PN3q/1P1Q1Qnn/Q1r2n2/5Bb1/2K5 w - - 0 1 illegal: Other
r2n1bk1/2n1r1NR/P3b3/3QPP2/1P1B4/q1qB1Qb1/K2n3q/b1r3Qn w - - 0 1 illegal: No possible last move, all moves rejected
1qqk3N/nQ4Q1/nn2BKPb/1q1bP1P1/N1pb1P2/1r2rN2/2R5/b2b4 w - - 0 1 legal: proof: e4 a5 c4 e5 d4 g5 h4 d5 b4 axb4 hxg5 dxc4 a4 f5 d5 f4 Be3 fxe3 Ra3 Bd7 Rd3 Bc8 Rd4 exd4 Ke2 b5 Kf3 c5 Kf4 h5 Ke5 c3 f4 h4 g4 h3 g6 e2 a5 e1B a6 c2 a7 c1B d6 h2 g5 d3 Qf3 d2 Nh3 d1N Bd3 c4 Nc3 b3 Qf2 b4 Qc5 b2 Qd4 b1Q Bf1 b3 Qd5 b2 Ne2 Nc3 Rg1 h1B Nd4 Nf6 Nf2 Bh6 Qb7 Nfd5 Nb3 Nb5 Qh7 Na6 Qg7 Bc3+ Nd4 Bg4 Nd3 Be3 Nc5 Nb6 Rg2 Rb8 a8Q Na7 Na4 Qc8 d7+ Kd8 Rc2 Re8+ Kf6 Bd1 Bh3 Re5 Nf3 Bed4 Kf7 Qa1 Be6 b1Q Kf6 Qb5 Qb7 Qab1 Bd5 Ba1 Be6 Rd5+ e5 Rd6 Ng1 Bd5 Nf3 Qa5 Rf2 Na8 Rh2 Rb6 Qc6 Rb2 Qc5 Re2 Qa3 Re3 Qb2 Kc7 Rc2 Rb5 Qb4 Qb6 Qbe7 Qbb8 Qef7 Nb6 d8N+ Qd7 Qe7 Qb4 Qef7 Qa5 Qe7 Rbb3 Nf7 Qb5 Nh8 Kc8 Bf7 Qh3 Qb7+ Kd8 Bg8 Qhd7 Be6 Qdc8
3q1RQr/4b1NQ/PPr2n1P/6QN/2K1bq2/q1p1b1Pn/r1b1k3/b6B w - - 0 1 legal: proof: f4 b5 c4 bxc4 d4 g5 a4 gxf4 b4 a5 b5 e5 dxe5 h5 g3 h4 Ba3 h3 Bb4 axb4 Ra3 Qh4 Rf3 Qf6 Rf2 Qd8 Rg2 hxg2 Kd2 Ke7 h4 Ke6 e4 f5 h5 d5 b6 c5 a5 f3 h6 d4 Bd3 f2 Be2 f1R Kc2 d3+ Kd2 c3+ Ke3 c4 Rh3 b3 Qc2 d2 Qd1 b2 Rh5 c2 Bd3 c1B Rh3 f4+ Ke2 c3 Rh1 f3+ Ke3 f2 Nf3 g1B Nh4 Nd7 Kd4 Ne7 Kc4 Nf6 Qh5 d1Q Qg5 Ned5 Nd2 b1B Nf5 Nf4 a6 Bc2 Rh4 Nh3 Rf4 Bb2 Rf3 Bb7 Ng7+ Kd7 e6+ Kd6 e7 Ba1 e8Q Be7 Be2 Qc1 Qg8 Qa3 e5+ Kc6 e6 Rc8 Bd3 Rc1 Rf4 f1Q Qh7 Be3 Ne4 Qf3 Rf5 Qf4 Be2 Rb1 Bf3 Rb2 Bh1 Ra2 Nh5 Qe5 Nc5+ Kd6 Rf1 Bbe4 Rf4 Rc6 Rf3 Bf8 e7 Qf4 e8Q Be7 Qeg6 Qf5 Qgg8 Ke5 Kb5 Kd4 Rf1 Bd5 Ne6+ Kd3 Neg7 Ke2 Rf4 Qg4 Rf1 Bde4 Rf4 Nd5 Rf7 Nf6 Rf8 Re6 Kc4 Qf4 Qd5 Rd6 Qg5 Rc6+
3r1Q2/5QB1/1kqnb2n/5Pbq/2P1q2R/4N3/KPQrp1nP/1brR2b1 w - - 0 1 illegal: No possible last move
2Q4B/2PQbk2/nbPK1n2/2PR1N2/rq1pP1b1/n2r4/q1Q1R3/4nrq1 w - - 0 1 illegal: Other
1b1rQ3/1Pn2b1P/Rb2b1rr/P1K5/1N1Qq3/1p1qq1Q1/P1B5/Rnk2n2 w - - 0 1 illegal: Other
2b1Rr2/q3rn2/2P1n1PQ/1n1Qp1BP/2n1r3/2bR3q/n1Qn1Pk1/4K2N w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 axb5 fxe4 d5 g4 d6 cxd6 Qd3 d5 Qd1 d4 g3 h5 h4 Ba6 Bh3 Bc8 Nc3 gxh3 g4 Qc7 g5 Qc6 Nd5 Qb6 Ne3 Qd8 Ng4 hxg4 b4 Kf7 c4 Ke6 c5 Ke5 b6 d5 g6 a5 c6 e3 b7 Kf4 h5 e5 b5 d3 b6 g3 Qc2 a4 Qe2 g2 Qd2 a3 Qc3 d2+ Kd1 a2 Qa5 d4 Qa7 h2 Qa3 e2+ Kc2 e1R Bb2 d1N Kd2 d3 Qc5 Nc3 Qa3 Rh7 Qd6 Nb5 Qc7 Bb4+ Bc3 Qd4 Rd1 a1N Qe7 Nd7 b8Q Nc5 b7 Ne6 Nf3 g1N Qbd6 Nc2 b8Q Re4 Qed8 Ne3 Ra1 Nh6 Qd5 Qa7 Nd4 Nf7 Ke1 Nc4+ Ne2+ Kf3 Qf8 Kg2 Bd2 Bc3 Qh6 Rg7 Qb6 Rh7 Qbc5 Nf3+ Kd1 Rb8 Bg5 d2 Ng3 Rg7 Rf1 h1Q Re1 Qh2 Nh1 Qh3 Re3 Rh7 Ke2 d1N Ra4 Nfd2 Ke1 Bd7 Ra6 Rf8 Rb6 Bc8 Rb8 Bb2 Ra8 Ndc3 Rb8 Na2 Ra8 Ncd6 Qc2 Bc3 Rb8 Bd7 Re8 Bc8 Qcd3 N6c4 Qe2 Nfd6 Rf3 Re7 Rd3 Ne3 Qd1 Nf7 Qc2 Nec4+
4QN2/1Bn1Pb1R/1r1r2rp/kbPP2qK/2n3R1/1b1r2Qn/P7/1R1r2b1 w - - 0 1 legal: proof: h4 e5 b4 d5 c4 a5 f4 exf4 b5 g5 hxg5 a4 b6 a3 Bb2 axb2 Na3 cxb6 c5 b5 Nc4 dxc4 Rc1 b4 Rb1 Ra5 Ra1 Ra8 Kf2 Kd7 Kf3 Kc6 d4 Kb5 e4 b1B g4 f5 d5 b3 g6 h6 g5 b2 g7 Nf6 g8Q Ka5 g6 b5 g7 c3 e5 c2 e6 c1R Ne2 b4 Rh2 b3 Qh7 Rc3+ Qd3 Bd6 g8R Ra6 Ng3 Bc2 Rh5 b1R Be2 b2 Qe3 Ng4 Rg7 Rg8 Qh8 Bb3 Rd7 Rd3 Rh2 Rbd1 Rh3 b1R Qd4 Qg5 e7 Rg6 Qb2 Nf2 Rh2 Nh3 Ra7 Be6 Rg2 Bf7 Nh5 Be5 Bf1 Bd4 Rg4 Rd6 Rd7 Rac6 Ng7 Na6 Qc2 Nc7 Rd8 Rg6 Qf2 Rcd6 Ne6 Rb2 Rh8 Rbb1 Kg2 f3+ Kg3 Rb2 Qg1 f2 Rh7 f4+ Kf3 Rbb1 Nf8 Rb2 Be2 f1N Rb1 Nd2+ Kg2 f3+ Kg3 Qf5 Kh4 f2 Qeg3 f1B Q1g2 Qf6+ Kh5 Bg1 Q2f3 Qe5+ Qf5 Qg7 Qd7 Nc4 Qd8 Ba4 Qe8 Rbb6 Rb2 Bb3 Rb1 Rc3 Bd3 Qf6 Bf5 Rcd3 Bc8 Rc3 Rd4 Ne5 Qd7 Bb5 Bb7 Nc4 Rg4 Rcd3 Qe8 Qg5+
4rn1n/3P2r1/P2Pq1q1/k3PBNQ/b1q1n1R1/7R/1K3bp1/1QqQr1n1 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 g3 Nc3 exf6 Nb1 f5 Qb3 f4 Qa4+ Nc6 Qd1 Nb8 Bb2 h5 Bd4 Qd6 Bf2 Qd7 Qa4 gxf2+ Kd1 Ne7 g4 Ng8 Kc1 Nc6 Qc2 Nb8 Qd1 Qd8 g5 Qf6 Na3 Qf5 Nc4 Qd7 Ne5 Qd8 Ng4 hxg4 e4 Kd7 d4 b5 a4 f5 h4 c5 e5 Kc7 a5 g3 a6 Kb6 h5 c4 d6 f3 d5 g2 g6 f4 h6 b3 h7 c3 g7 b2+ Kb1 c2+ Ka2 c1N+ Ka3 b1R Bd3 f1N Rh4 b4+ Ka4 b3 Ka3 f2 Nh3 b2 Rh5 f3 Ng1 Qe7 Qe1 Bd7 Rh1 Qe6 Rh3 Nd2 Bc4 f1Q Rg3 f2 Qe2 Ra7 Rg4 Ne7 Bd3 Ba4 Nh3 Ka5 Ng5 Ng6 Qf3 Be7 Nh3 Re8 h8Q Bh4 Qh5 Nh8 Ng5 Nd7 Ra2 Nf8 g8Q Rg7 Qgh7 Qe2 d7 f1Q d6 Bf2 Bc2 Q2c4 Bd3 Ne2 Ra1 Rd1 Rc1 b1Q Rc3 Qc2 Bg6 Qcf5 Kb2 Ng1 Qe2 Ra1 Rh3 Qff6 Bb1 Qh6 Qc2 Qhg6 Qc1 Qd1 Bf5 Ne4 Qcc2 Rc1 Qb1 Qe1 Qf3 Qe3 Qe2 Re1 Qed1 Qec1+
5b2/bP2Bq1r/K1Rrr1nQ/2Q1PB2/2q1Pnb1/2N1Pp2/4Qn2/2kb2n1 w - - 0 1 illegal: Other
2q4n/2P3R1/K2R4/1PQb1N2/k2PP1p1/1r1nb2b/b1b1Q1bQ/1n1r2Bn w - - 0 1 illegal: No proof kernel
n1Kb4/1pB1bnNP/1R1P3r/2P1b1Q1/Q3b1q1/qP1qq3/4b2R/1k1q2Q1 w - - 0 1 legal: proof: g4 a5 b3 h5 Nf3 hxg4 Nc3 a4 Ng1 a3 Na4 c5 Nb2 axb2 e4 d5 d4 cxd4 Nh3 d3 Ng1 d4 Bg2 f5 Bf3 Ra5 Bg2 Rd5 exd5 Be6 Bf3 Bc8 Be4 fxe4 Kd2 Kd7 f4 Kd6 c4 Kc5 a4 Kb4 h4 b1Q f5 g5 f6 e5 a5 g3 f7 g4 a6 e3+ Ke1 Kc3 d6 g2 a7 g3 a8Q e4 h5 d2+ Ke2 Na6 h6 Bf5 c5 Be7 f8Q Nc7 Nf3 g1B Qa2 g2 Qf6 Na8 Qf8 Qa5 Rh4 Qa3 Ne1 Bh2 Qe8 g1Q Qf7 Qg4+ Nf3 Be5 Qf6 Qc2 Qg1 d1B+ Ke1 e2 Kf2 d3 Ke3 e1B Qg5 d2 Rh2 Bh4 Nd4 Bh7 Ne6 Be2 Ng7 Qb1 Bb2+ Kc2 Bc3+ Qbb2 Bb4 d1Q Bc3 Qa6 Qa5 Qa3 Qa4 Bf5 Ra2+ Kb1 Ba5 Bh7 Bc7 Bd8 Qg6 Bhe7 Qg5 Bg6 Rd2 Bf5 Rd4 Qb5 Rb4 Qd3+ Kf2 Rh7 Rb6 Bg6 Qg3 e3+ Kg2 Qgc4 Kh3 Be4 Q3g4 B2f3 Qg2 e2 Qg1 Rh8 Kh4 e1Q+ Kh3 Qee3 h7 Nh6 Kh4 Rf8 Kh3 Be2+ Kh4 Rf3 Kh5 Nf5 Kg6 Qcd4 Kf7 Nh6+ Ke6 Nf7 Kd7 Rf6 Kc8 Rh6 Qc6 Q4c4 Qa4 Qe6+ Qd7 Qg6 Qb5 Qh5 Qa4 Qg4+
6q1/1bPPK1Qq/n1NPN1QB/6r1/n3pb2/1r1RPn1q/5p1b/r1k1N3 w - - 0 1 illegal: Other
1N2q3/1Qr2Nb1/1n2nQPr/3R3Q/4P1q1/2pr2r1/3p1P1P/1kbKB1rb w - - 0 1 illegal: No proof kernel
2b3b1/r2n2q1/rn1q2Rq/p1Bk1bP1/P2bpQ2/2n1R2Q/4PQP1/4NK2 w - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 e5 c4 exd4 Be3 bxc4 Nh3 f5 Nc3 Ne7 Bd2 Nd5 Bc1 Ne3 Ne4 fxe4 Ng1 Nxf1 b4 Kf7 f4 Ke6 a4 d5 b5 c5 b6 h5 b7 a5 Qd3 h4 Ra3 h3 Qf3 c3 Qd3 h2 Be3 c4 Qb1 d3 Kf2 d2 Ba7 d1B Qd3 d4 Rb3 c2 Rb4 c1N Qb1 c3 Nf3 d3 Qc2 d2 Qb2 c2 Rc4 Rh6 Qd4 Bg7 Rb4 Na2 Qb2 c1Q Qa3 Bb3 Ng1 d1B Bb6 Qa1 Nf3 Ra7 Rd4 Ne3 Bc5 Nc4 Ne1 Qc3 Rf1 h1Q f5+ Ke5 Rd2 Rha6 f6 Nb6 f7 Qh6 f8Q Bg8 Rd6 Bdb3 Rg6 Bbe6 Rh1 Qdd3 Rh3 N8d7 Kf1 Qb2 Qf2 Bf5 Qb3 Qg3 Qa3 Kd5 b8Q Qbe5 Qaf3 Nc3 Qg4 Qgf4 Re3 Qe7 Qg3 Bd4 Qh3 Qeg7 Qc7 Qfe5 Qb8 Qef6 Qbf4 Qd6
4BB2/1Q1P2p1/1KP3P1/1Nrr1q2/n1kp4/B2n2RP/2nbq1r1/1q2n1bQ w - - 0 1 legal: proof: b4 h5 a4 a5 g4 axb4 g5 Nc6 Ra3 Nb8 Rg3 Nc6 Rg2 Nb8 Rg4 hxg4 d4 d5 e4 c5 Ke2 cxd4 Kd2 d3 Ke1 d4 Nd2 Be6 Ndf3 Bd5 exd5 f6 Nd2 f5 Ne4 fxe4 Kd2 Kd7 c4 Kd6 f4 Kc5 g6 e5 d6 b5 d7 b3 f5 e3+ Ke1 e2 Kd2 e1N a5 g3 a6 b4 a7 b2 h3 b1R f6 b3 f7 b2 Qh5 g2 Ne2 g1B Qf5 Ne7 Qf4 e4 Qh6 e3+ Kd1 d2 Rh2 Qa5 Qh4 Na6 Nc3 Nf5 Ke2 Rh5 Bg2 Rc8 a8Q Nd3 Bd5 Be7 Rf2 Bg5 Rf3 Rc6 Qe1 d1Q+ Kf1 Bf4 Qb7 e2+ Kg2 Bg5 Nb5 Bd2 Rg3 Ne3+ Kf3 Nc2 Ke4 Ra1 Be6 b1Q f8B+ Rd6 Bb2 Ra2 Bf7 Rd5 Qf1 e1N Be8 Kb4 c5 Rc6 Qg2 Kc4 Ba3 Rb2 Qh1 Qe2+ Re3 Rcd6 c6 Rc5 Na7 Rdd5 Nb5 Nc7 Qa6 Na8 Qb7 Qh2 Rg3 Nb6 Qc7 Na4 Qb7 Ne5 Kf5 Qf2+ Ke6 N5d3 Ke7 Qa6 Kd8 Qe2 Kc7 Qa8 Qa7 Qd8+ Kb7 Qg5 Ka6 Qgg4 Qb7 Qf5 Rg4 Qee4 Qb8 Bde3 Rh4 Na1 Rg4 Rg2 Rg3 Nac2 Qb7 Bd2 Ka7 Qe2 Ka6 Nc3 Kb6 Na4+
N2b2QN/p1PP2K1/rQ1rp1q1/b3b2b/1n1R4/1r3q1P/4rBPn/3N3k w - - 0 1 illegal: No possible last move
2bn2nN/6rN/pQ1qN1nP/R1b2P2/Pp3r2/Br6/QqP2p2/b2k3K w - - 0 1 legal: proof: b4 d5 e4 dxe4 g4 f5 a4 fxg4 f4 c5 bxc5 h6 Ra3 h5 Rf3 gxf3 Bh3 Qd6 Be6 Qd8 Bg4 hxg4 Kf1 Kd7 h4 Kc6 d4 Kd5 c6 Kc4 f5 b5 d5 e5 c7 g5 h5 e3 d6 g3 d7 g4 Ba3 f2 Kg2 e4 Be7 e2 Qd6 e1Q Qb6 e3 Bf6 e2 Qb7 a6 Be5 Qb4 Qc6+ Bc5 Qf3 e1B Qd1 Bc3 Ne2 Qb2 Re1 Nc6 Bd6 Rb8 Nf4 B3d4 Nd2+ Kc3 Kh1 g2+ Kh2 g1R h6 Rh7 Ne6 Rg7 Qb1 Rb7 Nf3 g3+ Kh3 g2 Kh2 Rb6 Nfg5 Kd2 Qa2 Bf6 Re5 Kd1 Nh7 Qf8 Re4 Nd8 Re5 Re1 Be7 g1N Kh1 Re4 Bd6 Ne2 Be7 Nc6 d8N Nf4 Nf7 Nd8 Nh8 Ng6 Bd6 Rf4 Be7 Bd7 c8Q Rb8 Qc7 Bc8 Rd5+ Bfd4 Bh4 Qd6 Be7 Qb4 Re5 Ba1 Qb6 Qb2 Bg5 Rc4 Bd2 Rbb7 Bb4 Rf4 Ba3 b4 Nd4 Rbe7 Rd5 Re3 Ne6+ Rd3 Re5 Rb3 Rd5+ Bd4 Ra5 Bc5
2qQr1R1/1rrq2R1/1p4Q1/1p4pP/3qb2P/2Q3nK/kP1P1r1b/1q1NB3 w - - 0 1 illegal: No proof kernel forced: bxDB
6n1/1Qrqn3/b2QPnp1/1q1Q4/3p1P2/2BBRpK1/qp1N2PP/k4rr1 w - - 0 1 illegal: No proof kernel
NnRqn1Q1/P1P2p1r/N2p1Pr1/3p3q/2b2K1N/3P3Q/1B1p2q1/q4nk1 w - - 0 2 legal: proof: h4 g5 b4 gxh4 d3 a5 Bb2 axb4 Na3 c5 Qd2 c4 Qc3 Qc7 Qb3 c3 Rc1 Qb6 Ra1 Qd8 Rd1 e6 Rd2 Qc7 e4 Na6 e5 Qb6 Be2 cxd2+ Kf1 Bh6 Bf3 Nb8 Bd5 exd5 e6 Kd8 e7+ Kc7 e8Q Bf4 Qd8+ Kc6 Nb5 Ne7 a4 Ng8 Na3 Be5 Bxe5 Qa5 Bb2 Qc7 Ke2 Kc5 Ke3 b5 g4 h5 c4 d6 f4 h3 a5 h4 f5 h2 a6 h3 a7 Nf6 g5 Ne8 f6 Rh7 g6 Ba6 Qd7 Qd8 Qa2 b3 g7 b4 g8N Bb5 Be5 b2 Kf4 b1Q Ne7 b3 Nc2 b2 Nf3 Qf1 Qb1 Qg2 Rc1 h1Q Nc8 h2 Nb4 Ba6 Qa1 b1Q Qh3 Bb5 Qb2 Qa1 Nb6 Qd1 Nh4 h1N Qb3 Qh5 Bb2 Ng3 Rc2 Nf1 Na6+ Kc6 c5 Bc4 Nb4+ Kb5 c6 Kc5 Rc3 Kd4 Na6 Nd7 Qa4 Rb8 Na8 Rb4 Qd1 Nb8 Ba3 Rb1 Qdg4 Re1 Qg8 Re5 c7 Rg5 Rb3 Rg6 Rb4 Kc3 Bb2+ Kc2 Qe3 Kd1 Qh3 Ke2 Rb5 Kf2 Rb6 Nd7 Rb8 Kg1 Rc8 Nb8
q1Nk4/2npr1PQ/qp3N2/1pB2b1r/2qPP1PQ/pr1r2K1/3N1Rn1/8 w - - 0 1 illegal: No proof kernel
N1q1brqb/2n2qp1/P3kq2/QB6/1Nprb1nQ/2P2QbP/6P1/1R3nK1 w - - 0 1 illegal: Other
nn2b1k1/bNRb3q/3bn2K/p1Q4b/p2B1P1p/2q1P3/Pr3r1P/QN1Q4 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 b5 e3 f5 Nf3 fxg4 Nbd2 e5 Bg2 Kf7 Ng1 Ke8 Bc6 e4 Rb1 Kf7 Rb3 Ke8 Rd3 exd3 Bd5 Qe7 Bb3 Qd8 Ba4 bxa4 c4 Kf7 f3 g5 Kf2 a5 Kg3 h5 c5 d5 c6 h4+ Kf2 g3+ Kg2 g4 b5 Ne7 c7 Qd7 b6 Kg8 Ne4 d2 b7 d3 Qc2 d1B Qb3 d2 Qa3 d4 Ne2 d3 Nf2 Nd5 Qe7 Nb6 Qe5 Qh7 Qa1 Bc5 Bb2 Bd7 Kg1 g2 Bg7 Ra6 Nc3 Na8 Qc1 Rb6 Nfe4 Rb2 Kf2 g1N Qb1 g3+ Kg2 Ne2 Bf6 Ba7 Nd6 Nd4 Qa1 Ne6 Kh3 g2 Kg4 g1B Nb1 Bf2 Bd4 Bg3 c8Q+ Be8 Qc1 Bc2 Rf1 d1B Rf2 Bb3 Rc2 d2 Rc7 Be2 Qc5 d1Q Re7 Qe1 Rc7 Nd8 Kg5 Qc3 Bf6 Be6 Bd4 Be5 f4 B2h5 Nc8 B6d7 Nd6 Na6 b8Q Rf2 Qbb2 Nb8 Nb7 Bd6 Qc2 Ne6+ Kf6 Qh6+ Kf5 Rh7 Qb3 Re7 Qd1 Qh7+ Kf6 Nd8 Kg5 Re4 Bf6 Rb4 Be5 Rbb2 Bd4 Qe4 Kh6 Ne6 Bg7 Qed3 Bd4 Qh7#
3n2b1/1R1bKbpp/3R1n1b/kq1N4/3p2Pq/1b2R2Q/r1PPBrnP/2Q5 w - - 1 3 legal: proof: b4 c5 a4 cxb4 f4 a5 Nh3 e5 Ng1 exf4 Na3 bxa3 Bb2 Bd6 Bc3 Bf8 Bb4 axb4 Kf2 f5 Kf3 d5 g4 Kd7 e4 Kc6 e5 Kb6 e6 a2 e7 d4 e8R b3 Qc1 b2 Bb5 Bd7 Bd3 Nf6 Re6+ Nc6 Be2 Bd6 Bb5 Rf8 Qb1 Ka5 Ba6 b5 Ne2 b4 Qf1 b3 Re1 a1Q Bc8 b1B Re7 b2 Re4 Ba2 Qg2 b1B Rd1 Bb3 Re3 Qb2 Nc3 B1a2 Qh3 Bf7 Rb1 Qb5 Rb4 Bab3 Rhe1 Qe7 R1e2 Nd8 Ba6 Ra7 Nd5 Be5 Kf2 f3 Re1 f4 Rb1 Qb8 Be2 Qb5 Rc4 Bc7 Rc6 Bg8 Rd6 Rf7 Kf1 f2 Kg2 f3+ Kg3 f1N+ Kf4 f2 Kg5 Ng3 Rb2 f1B Rb1 Ngh5 Rb2 Bc6 Kf5 Nf4 Rb1 Ng2 Rb2 Ka6 a5 Bb8 Bf3 Bfc4 Be2 Qb4 Rb1 Kb5 a6 Ka5 Rb2 Qb5 Rb1 Ra8 a7 Be8 Rb6 Bf4 Rd6 Bh6 Rb2 Rb8 Rb1 Rb6 a8Q+ Ra6 Qa7 Rf8 Qc5 Bef7 Qa3+ Ba4 Qc1 Bcb3 Rc6 Ne4 Rb6 Qh4 Ke5 Nf6 Kd6 Qc4 Ke7 Bd7 Rd6 Qb5 Nc7 Kb4 Rb2 Ra2 Nd5+ Ka5 Qd1 Ba4 Rb4 Bb3 Qc1 Qd3 Rb8 Qb5 Rb7 Bg6 Rdb6 Nh5+ Kd6 Rf2 Rc6 Nf6 Ke7 Bh5 Rd6 Bhf7
3r4/Q4pPr/3bBPk1/1p1q2Nr/b1Rp2RK/n1pP1PR1/bqq2Q2/5n2 w - - 0 1 illegal: Other
1QK2r2/r1Npq2r/Q2P2p1/1nqqnp1B/1P3BBP/b5R1/q3p1P1/5b1k w - - 0 1 illegal: No proof kernel
Qq3Q2/N1q2pr1/2p2P2/2Bpb2P/2k5/1p3PR1/bR1PrpQb/n1bn1K2 w - - 0 1 illegal: Other
3rB1Nr/r4P2/BR3B2/2P4q/bnq1r2r/Pkn1b3/R3P1Kr/R2b2b1 w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 b4 f5 b5 c5 Qd3 c4 Nd2 cxd3 Ndf3 a6 Nh2 axb5 hxg5 b4 g6 Bh6 g5 Bf8 Ng4 fxg4 c4 Ke7 f4 Ke6 Kf2 d5 c5 b5 a3 h5 g7 h4 g6 h3 Kg3 b3 Kf2 b4 Bg2 b2 Bf3 b1R Rh2 b3 Be4 b2 Bg2 d2 Kg3 d1R Rh1 h2 Bf1 d3 Kf2 d2 Nf3 g3+ Kg2 d4 f5+ Kd5 f6 Kc4 f7 d3 Ra2 Bd7 Nh4 Nf6 g8B Ra7 g7 Nc6 Nf3 Nb4 Ra1 Ne4 Ng1 Ba4 Nf3 Kb3 Rg1 h1R Ne5 Nc3 Kf3 g2 Nc6 Qg5 Bh7 Rh4 g8R Bh6 Rb8 Qh5+ Kg3 Bg5 Ne7 Be3 Ra2 Re1 Rb7 d1B Rb6 d2 Bd3 Rh2 Rh1 g1B Bg2 Rf1 Ba8 Rf4 Ba6 Re4 Ng8 Ra1 B8b7 b1Q Bb2 Qd3 Bc6 Qc4 Bcb5 Bc2 Bc6 d1R Be8 Rhh4 Kg2 Rd8 Rh6 Rf1 Rb6 Bd1 Ba1 Nb1 Bf6 Nc3 Rh3 Rff4 Rf3 Rh3 Rf1 Rfh4 Re1 Bc2 Rc1 Bd1 Rca1 Rh2+
1q1r4/3R1bPR/R1n4K/1N1bn1q1/1BP1r1B1/1r2bp1B/1P3kbP/2b1q3 w - - 0 1 illegal: No possible last move, all moves rejected
r2bN2n/Bq3q1b/1nkP1q1N/3b4/3q1N2/1RK1b1PP/R1Pp4/1R1r2q1 w - - 0 1 illegal: No possible last move, all moves rejected
Nb1bbbK1/Pn6/b1Rq1N2/n1P1N3/Pk2p3/2R2QRP/7b/n1rnr3 w - - 0 1 legal: proof: e4 d5 g4 a5 c4 h5 b4 hxg4 bxa5 c5 Ba3 f5 Bb4 cxb4 c5 fxe4 Bc4 dxc4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Kg5 e5+ Kg6 c3 Kf7 g5 f4 c2 d4 c1N h3 g3 a6 e3 d5 e2 f5 e1B f6 b3 a3 g2 d6 b2 d7 g4 Ne2 g1B Nf4 g3 Nd5 g2 Nb4 Bh4 Qe1 Nh6+ Ke6 Nf5 Kf7 Nc6 Qc3 Nd6+ Ke6 Na5 f7 Ncb3 Nd5 Bh2 Nf4 g1B Ra2 Na1 Nd2 b1N Qg3 Nc3 Rc2 Nd1 Nh5 b6 Qf2 Ndb7 Nf6 Qc7 Rc3 Qd6+ Kf5 Rb8 a4+ Kb4 Kg6 b5 d8N Bd7 a7 Be8 Qg3 e4 Qf3 Rg8+ Kh7 Be3 Rd3 Rg1 Nc4 Re1 Rg1 Bef4 Ne6 Rd8 Ne5 Rd7 Nfg4 Bd8 Rg3 Qa6 Rc3 Rd2 Rd3 Bg7 f8R Rc2 Ng6 Kc4 Kg8 b4 Rd6 b3 Qf2 b2 Nc7 b1B Na8 Kb4 Rff6 Rc1 Rdd3 Bc2 Qf3 Bf8 Rc3 Bb8 N6e5 Bd3 Rd6 Qb6 Nf6 Ba6 Re6 Qc7 Rc6 Qd6
3n2k1/1P3p2/1r5P/n1q3N1/3q3q/1bP1pRQq/1R2K1NP/R2rNbbq w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 e4 e5 g4 h6 b5 h5 Ba3 d6 Bb4 cxb4 gxh5 exf4 e5 d5 Bd3 Ke7 Bh7 Ke8 Be4 dxe4 d4 g5 b6 a5 e6 f3 h6 g4 d5 g3 e7 g2 b7 a3 d6 b3 Nc3 a2 Qd3 b2 Kf2 b1Q Qd2 a4 Qf4 a3 Nd5 Nc6 Qf6 Qb3 Qb2 Na5 Qb1 Ra6 Ke1 Be6 Nc3 Rb6 Nh3 g1Q+ Kd2 Qc5 Re1 Bg7 Re2 Bd4 Kd1 Bg1 Nd5 Qbc3 Ndf4 Bb3 Qc1 e3 Ng5 Q3d4+ Nd3 Qdc8 Rg2 Qh4 Ne1 Qe6 Rf2 Qeh3 Rb1 a1Q Rb2 a2 Qb1 Kd7 e8R Ne7 Ra8 Rd8 Ra6 Ke8 d7+ Kf8 Rf1 Ra8 d8N Kg8 Nde6 Nec6 Nf4 Nd8 Qc1 Qb1 Nfg2 f2 Ke2 a1Q c3 Qaa4 Qd1 Qbe4 Qd6 Qad4 Qg3 Ra7 Nc2 Ra8 Ra1 Rc8 Nce1 Rc7 Nf4 Qh1 Nfg2 Rd7 Nd3 Rb5 Rf6 Rb6 Rf3 Qdb4 Ndf4 Rd1 Nd3 Qbd4 Nde1 f1B+
nb6/b1b1p1R1/1p2P1r1/2RnR3/N3N3/qq2PQ1b/N2nKPPr/5qk1 w - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 f5 b5 f4 b6 f3 e3 Kf7 Be2 fxe2 a5 Bh6 a6 Qf8 Bb2 Ke8 Ba3 Qf3 e4 Qe3 dxe3 Bf8 Kd2 bxa6 b7 a5 Bc5 a4 Bb6 cxb6 c4 Kf7 c5 Kf6 e5+ Kf5 c6 Ke4 c7 e1N Rh3 h5 Rf3 d5 Qb3 a5 Rf6 d4 Qe6 d3 Qb3 a3 Ra2 a4 Qc2 h3 Qc3 h4 Ne2 h2 Rh6 h1Q Rf6 h3 Nc1 h2 Rf3 Na6 b8N Qf1 Kd1 h1Q Rd2 a2 Rf7 a1B Qa5 a3 Rh7 a2 Rg7 Rh2 Qc5 Nf6 Re2 d2 Rh7 Nd5 Qc3 Bh6 Qa5 Bh3 c8R Nac7 e6 Nf3+ Re1 Bf4 Qa3 Bae5 Nc6 a1B Rch8 Rg8 Ne2 Na8 Rh5 Rg6 Nec3+ Kd3 Rg8 Bb8 Rg7 Bfc7 Re5 Ba7 Ne4+ Bc3 Qa4 Bb4 Qa5 Bbd6 Nbc3 Bcb8 Na4 Bdc7 Nb4+ Kc4 Kc2 d1Q+ Kb2 Qdd3 Kc1 Qb3 Na2 Kd3 Qc5 Qhg1 Qc6 Nd2 Rd1 Ke2 Qb7 Qb4 Kc2 Qa3 Rc1 Qe1 Qc6 Kf1 Qb7 Qh1 Qc6 Kg1 Qb7 Qc5+ Kd3 Qd1 Rc4 Qc2+ Ke2 Qa3 Rc5 Qcb2 Qc8 Qab3 Qf8 Q2a3 Qf3 Nc3+ Kd3 Kf1 Qf6 Nd5+ Kd4 Ke2 Qf7 Qhd1 Qf4 Kf1 Qf3 Nc3 Kd3 Kg1 Rcd5 Qdc1 Rc5 Nd5+ Ke2 Qf1+
6R1/1kn1n2P/pb2N1QN/2pr4/R1rn1P1q/1R1Pr3/2br3P/r1N2K1r w - - 0 1 illegal: No possible last move
3qQ2R/Pkp3R1/6n1/Pr3nnb/Rr1rbPpB/Br3P2/B3Kb2/5b2 w - - 0 1 illegal: Other
4n2B/1R3q2/nr4Nr/RnP2nPb/3p2b1/bPb4R/PN1q2pK/k1N5 w - - 0 1 illegal: No proof kernel
B2Bq3/1qR3N1/Rn3q2/2pr2bP/3b2pq/K2BrP2/2Pq2P1/1R1b1r1k w - - 0 2 legal: proof: e4 a5 b4 axb4 d4 f5 f3 fxe4 d5 c5 Ke2 h5 Bg5 Nc6 Bc1 g5 dxc6 g4 Nc3 Qa5 Qd2 Qd8 Kd1 h4 Qf2 Qc7 Nce2 Qd8 Ng3 hxg3 Bb5 gxf2 Be2 Ra5 Bf1 Ra8 a4 Kf7 h4 Kf6 c7 Ke5 h5 b5 a5 d5 a6 e3 a7 Kf4 Nh3+ Kg3 Rg1 Kh2 Ng5 e5 Ra5 e2+ Kd2 e1B+ Kd3 b3 Be2 f1R Ra1 e4+ Ke3 b2 Ra3 b1Q Nf7 d4+ Kf4 e3 Ke4 b4 Kd3 b3 Kc4 d3 Ra2 d2 Nd6 d1Q Nb5 b2 Kb3 Bf2 Ka4 Qe8 Bd2 Ne7 Ra1 Bh6 Ka3 Ba6 c8R Nd5 Ka4 Nb6+ Kb3 Bg5 Ba5 Qd2 Ra4 Qa1 Bd1 e2 Rb8 e1Q Nd6 Bd4 Nf5 Qh4 Rb7 Be2 Ng7 Rd8 a8B Rd5 Rc7 Rh6 Ra3 Re6 Ra2 b1Q+ Ka3 Bd3 Be2 Re3 Ne6 Qbb5 Ng7 Bc4+ Bd3 Qbc6 Ra7 Qf6 Rc7 Qb1 Ra1 Qbb5 Rb1 Qbc6 Ra1 Qb7 Ra2 Rf2 Rb1 Rf1 Raa1 Kh1 Re7 Nd7 Bd8 Nb6 Rc7 Ree1 Bg6 Be2 Bd3 Bd1 Kb3 Qfe6 Ra6 Re3 Ka3 Qf6
3nr3/R5rn/b1P1B2R/2Rn4/2Pp1B2/2b3n1/PBNnPprp/1K3q1k w - - 0 1 illegal: No possible last move
3Q3r/2p5/2B1R1nb/qnnRBB1p/1PP1bP2/r2pK3/2b2R1P/1n1r3k w - - 0 1 legal: proof: d4 a5 g4 b5 a4 f5 axb5 fxg4 Bg5 e5 Bc1 exd4 b4 a4 Nc3 a3 Na4 Rxa4 Nh3 a2 Nf4 Ra8 Ne6 Qe7 Nd8 Qxd8 Kd2 Kf7 f4 Kf6 c4 Kf5 b6 Ke4 b7 d5 e3 h5 Ba3 g5 Qb3 Kf3 e4+ d3 e5 d4 e6 g3 e7 g2 e8B g1R Bh3 g4 Re1 a1N Bg6 g3 Rb1 g2 Qa2 Bf5 Rd1 Bh6 Qc2 Qg5 Rb1 Nc6 b8R Be4 Re8 Qa5 Qb3 Na7 Bh7 Ne7 B3f5 Nb5 Qb2 Ng6 Re1 Nb3+ Kd1 d2 Rd8 Rf1 Rd5 g1N Qa1 Kg2 Bb2 Nf3 Ke2 d3+ Ke3 d1B Be5 Rg1 Qd4 Bc2 Bd7 Nc5 Bc6 Nd2 Rf1 Ne7 Bf5 Ng6 Rf3 Rd1 Re1 Ra6 Re2+ Kh1 Rff2 Ne6 Qb6 Raa8 Qb8 Nb1 Qd8 Nc5 Rg2 Nh4 Rg6 Ra6 Re6 Ng6 Rf2 Qb6 Rd4 Ra3 Rd5 Qa5
1K2n3/N4rr1/P3BR2/1qp1Pppb/rBn2qB1/4q1P1/N1N1P3/qr4k1 w - - 0 1 illegal: No proof kernel
Nb3Nrn/2nPbpq1/6P1/6q1/B1N1pnkB/K1Pp1p1R/1r1P4/2B1r3 w - - 0 1 legal: proof: b4 a5 g4 axb4 e4 c5 f4 g5 a4 gxf4 g5 h5 Qg4 hxg4 Ra3 d5 Ra2 d4 Bb2 Be6 Kf2 Bc4 Ra3 Bd5 exd5 c4 Rb3 cxb3 Na3 Qc7 Bb5+ Qd7 Bf1 Qd8 Ke1 Kd7 Kd1 b5 Kc1 e5 h4 g3 d6 Ke6 d7 Kf5 h5 g2 h6 d3 a5 e4 a6 f3 h7 Be7 a7 Kg4 Ne2 g1B Bg2 Na6 Nc4 Rb8 a8N Nc7 Bf6 b2+ Kb1 Bh2 Ka2 b1N Rc1 b3+ Kb2 b4 Nf4 Nc3 Na5 N3d5 Ng6 Nf4 Bf1 Qf8 Ra1 Qg7 Nc4 Rb7 Nf8 Rb8 Kb1 b2 Ka2 b1R Be2 Re1 Bd1 b3+ Kb2 Rb4 Ka3 b2 Rc1 b1Q Bb2 Bd8 c3 Ne7 Ba4 Rg8 h8B Neg6 Rd1 Be7 Bc1 Qf6 Bg7 Nh8 g6 Bg3 Bh6 Qg7 Bg5 Rb6+ Nd6 Qb5 Bh4 Bf6 Nc4 Qg5 Bc6 Rb2 Ba4 Re3 Rh1 Re1 Rh3 Be7+ Nd6 Bf2 Bb5 Ba7 Ba4 Bd8 Nc4 Bb8 Bb5 Bf6 Ba4 Be7+
b7/1rp5/p1PP1Rnb/3p3k/1qR1N2p/3NKqRP/2NPp2q/n5nB w - - 0 3 illegal: No possible last move
1n3q1K/1bk2r2/1r3p2/1Q2b1p1/n3b1bn/1pqPPPP1/B1N4B/2N1bB1N w - - 0 1 legal: proof: b4 d5 c4 dxc4 a3 e5 b5 e4 b6 e3 d3 axb6 Nh3 b5 Ng1 b4 a4 h5 Ra2 h4 Rd2 Bf5 Qb3 exd2+ Kd1 Bd7 Kc2 Qe7 Kb2 Qg5 Qd1 Bc8 Kc2 Qd8 g3 h3 Nf3 Ra6 Rg1 Ra7 Rg2 hxg2 h4 Ra8 h5 Kd7 a5 g1N h6 g5 h7 b5 e3 c5 a6 b3+ Kc3 b2 a7 b4+ Kc2 c3 Kb3 c4+ Kc2 f6 Qe1 Ne2 Nh2 Nh6 Ng4 Kc7 Na3 Nf5 Qd1 Rg8 h8N Rg7 Ng6 Bb7 Nf4 Bd6 Qe1 Rf7 f3 Nh4 Qd1 Qf8 Nf2 Be5 Nh1 Be4 Kb1 c2+ Ka2 c3 Kb3 b1B Kc4 Bb7 Qe1 d1B Bd2 c1B Nc2 Be4 Qf2 Bb7 Be1 Bd2 Qg2 Be4 Bf2 Be1 Bg1 Bb7 Bh2 Ba2+ Kb5 Bb3 Qh3 Ba4+ Kc4 Bac6 Qf5 Be4 Qd7+ Kb6 Qb5+ Kc7 Na1 Ba4 Nc2 Nc1 Ne2 Nb3 Nc1 Nc5 Qa6 Bd7 Qb5 Bd6 Kd4 Bg4 Kc4 Na4 Kd4 Nd7 Kc4 Rd8 a8B Rb8 Kd4 Be5+ Kc4 Bc8 Bd5 Rb6 Be6 Bcb7 Bd5 Bd6 Kd4 Nb8 Ba2 b3 Kc4 Bh7 Kd4 Be5+ Kc4 Rc6+ Kd5 Rb6+ Qc6+ Kd8 Nd4 c2 Nce2 Ng6 Ke4 Bbc8 Qb5 c1Q Kd5 Qc3 Nc1 Kc7 Ke4 Bgd7 Nc2 Re6 Kf5 Nh4+ Kg4 Be4 Kh5 Qfb4 Kh6 Rb6 Be2 Bg4 Bf1 Rf8 Kg7 Rf7+ Kg8 Bcb7 Kh8 Qf8#
b3R3/3BP3/1qr1QBnp/pbB1pp2/4q2P/K1knP2p/P6n/3rRRb1 w - - 0 3 illegal: Other
n2Kn2B/2Np2p1/3pp3/rBbP4/1P2bbn1/1NNpPq2/5rPB/Q3b2k w - - 1 3 illegal: No proof kernel
3n4/Q1K1npB1/NPPNN3/1P1k4/1P1n1p1b/5pp1/1Nq1b1p1/1bRq4 w - - 0 1 illegal: Other
2NK1nNn/1pNP1k2/2np1P2/n1P4p/8/RrPQR3/1r1ppQ2/3qq3 w - - 0 1 legal: proof: d4 c5 Kd2 g5 b4 a5 h4 gxh4 Kc3 axb4+ Kc4 Bh6 Kd3 c4+ Ke4 c3 Bd2 cxd2 Kd3 Qc7 Rh2 Qa5 Rh1 Qd8 e4 Qc7 e5 Qb6 e6 Qd8 Ke2 Bf4 Kf3 Bd6 Ke2 Bc5 dxc5 Ra6 Nf3 Ra7 Ng1 Ra8 Nh3 d6 Ng1 Bd7 exd7+ Kf8 Kf3 f5 Bd3 Na6 Ke2 Kf7 Be4 fxe4 Kf1 Nb8 Ke2 h5 Ke3 e5 g4 b3 f4 h3 a4 h2 f5 b2 a5 Qc8 f6 Nh6 c3 Qg8 g5 Qg6 a6 Nc6 Na3 b1N Nc4 Na3 a7 Rhc8 Nb6 Nc4+ Ke2 e3 Kf3 e2 Ra3 e1Q Nh3 e4+ Kf4 e3 Qf3 e2 Qf2 Re8 Nc8 N4a5 Rg1 h1N Rg3 Qgb1 Re3 Ng3 g6+ Kg8 Kg5 Ngf5 g7 Nfe7 Nf4 Kf7 g8N Ng6 Ne6 Qbd1 Nc7 Nf8 Kf4 Re4+ Kg5 Rb8 a8Q Rb4 Qa6 Ra8 Qd3 Rb2 Kf4 Ra6 Ke4 Rab6 Kd5 Nh7 Qdf5 R6b3 Qh3 Kg6 Ke6 Nf7 Qhf3 Nh8 Qd5 Ne5 Ke7 Nf8 Ke8 Nec6 Qd4 Nb8 Kd8 Kf7 Qd3 Nbc6#
8/bqn1q2K/3PqPrN/k1qbP1rb/2b2n2/PQ5Q/3q1R2/1RR2N1b w - - 0 1 legal: proof: c4 a5 e4 f5 d4 g5 b4 axb4 h4 gxh4 c5 d6 d5 e6 Be3 e5 Bd3 Qd7 Bd4 Qd8 cxd6 exd4 e5 Bd7 Bc2 Bc8 Be4 fxe4 Ke2 Kd7 f4 h5 g4 c5 f5 b5 f6 b3 g5 h3 g6 e3 Kd3 b4 Ke4 e2 Kf5 e1Q a3 b2 g7 d3 Kg6 c4 Qc2 b3 Qc1 h4 Nd2 b1Q Qc2 b2 Rh2 c3 Ne4 d2 Ng3 d1B Ne4 Na6 Rh1 h2 Qe2 c2 Qg2 c1Q Qg3 h3 Nf3 Qed2 Re1 h1B Qf2 h2 Qb6 Qc5 Re3 Qa2 Rc1 b1Q Qb4 Rh6+ Kf7 Nc7 Rb3 Ba6 Qc3 Ne7 g8R Ng6 Nh4 Bc4 Nf5 Bh5 Qh3 Nf4+ Rg6 Rc8 Kg8 Qe7 Rg2 Rg6+ Kh8 Kd8 d7 Qbb2 Rb8 Qb7 Rf2 B1f3 Neg3 h1B Nf1 Qab3 Qh2 Q3b6 Qh3 Qbe6 Ra8 Bh6 Ra6 Be4 Rb6 Bg5 Rbb1 Bh4 Rg2 Bf2 Nh6 Ra8 Rh2 Ra4 Rg2 Rb4 Rh2 Rb3 Rg2 Rbg3 Rh2 Bg1 Rf2 R3g5 Qb3 Na6 Qh3 Kc7 d6+ Kc6 d8Q Bed5 Qb8 Nc7 Ra1 Kb6 Rab1+ Ka5 Qg8 Qd8 Kh7 Qde7+ Qg7 Qcb6 Ng8 Rg2 Rf3 R6g3 Nh6 Bd4 Rf2 Q6c6 Ng8 Ba7 Nh6 Rg4 Qb3 Qc5 Qh3 Qf8 Qd7 Rg6 Qe8 R2g5 Qd7 Qee8 Qb3 Qec8 Qf5 Qe6 Qfh3 Qfe7+
qk6/3b3n/1K1Nr3/r2n1brQ/3P4/1RPbq1rQ/QbPN2nP/3Rq3 w - - 0 1 legal: proof: f4 c5 g4 h5 e4 hxg4 f5 d5 f6 a5 Bg2 c4 e5 exf6 Bf3 c3 bxc3 f5 Be4 dxe4 Ba3 f4 Bb4 axb4 Kf2 Kd7 a4 Kc7 d4 f5 a5 b5 e6 g5 a6 b3 e7 b2 e8Q g3+ Ke2 g4 a7 b4 Qa4 f3+ Ke3 b3 Ne2 f2 Qe8 f1B Ng1 g2 Qh5 f4+ Kf2 f3 Ke3 f2 Nf3 g1R Nh4 g3 Qg6 g2 Qe6 Bd3 Qe1 f1B Qe7+ Nd7 Qg7 Ne7 Ra4 Rh5 Qd1 Nf6 Ra2 Bd7 Qh6 Rg5 Qc1 Nh7 Qe1 Nd5+ Kf2 e3+ Kf3 e2 Ra4 Ba3 Qh5 B3f5 Nd2 b1Q Qg4 b2 Qh5 Kc8 Qg3 Qe1 Qgg4 b1R Qh3 Rb6 Rb4 Re6 Rb7 Bb2 Rb3 Rb8 a8Q Qg8 Qa2 Ra8 Ng6 Ra5 Ne5 Kc7 Nf7 Qa8 Ra3 Kb7 Nd6+ Kb8 N2e4 Nb6 Ke3 Nd5+ Kd3 Qf2 Kc4 Qe3 Nd2 Rg3 Nb5 e1N+ Kc5 B1d3 Rb3 Rf1 Ra3 g1Q Rb3 Qgf2 Rg1 Ng2 Rh1 Ra1 Rc1 Qfe1 Rd1 Raa6 Nd6+ Rb6 Nc8 Reg6 Nd6 R6g5 Nb5 Re6 Nd6+ Nb4 Qa6 Ra5+ Kb6 Rc5 Qa3 Ra5 Qa2 Nd5#
n1rb4/7n/P2Pb3/q3k1BK/r2qB2N/Pb1b1q1n/1rr1P2N/4QQ1B w - - 0 1 legal: proof: c4 g5 f4 d5 f5 dxc4 a3 g4 b4 a5 bxa5 e6 Kf2 exf5 Ke1 f4 Ra2 h5 Rc2 Qd7 Rc3 Qd8 Rf3 gxf3 h4 Qg5 g4 Qf5 g5 Qf6 Rh3 Qd6 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 d4 Kd6 g6 c5 d5 b5 h5 f5 g7 b4 h6 c3 h7 c4 Qb3 g3+ Ke1 c2 Kd2 f2 Qe3 g2 Nf3 g1N Qd3 b3 Qe3 c3+ Kd3 b2 Nfd2 f3 Qb6+ Ke5 Ke3 f4+ Kd3 Nh3 d6 Nd7 Qb3 Be7 Ne4 Ngf6 g8B Nb6 Qa4 Be6 Bd2 c1Q Bg2 f1B Qb3 c2 Be3 f2 Nbc3 b1B Nd1 f3 Ng3 Qb2 Bg5 c1R+ Ke3 Rc2 Qb4 Bb3 Bh1 Rb8 a6 Na8 Nf5 Qa5 Bf7 Rhc8 h8Q Bd8 Qf8 Nh7 Qe1 Rb4 Bg6 Ra4 Qf7 Bg2 Nh4 f1R Be4 f2 Qf8 Rg1 Qf3 f1Q Nf2 Qa1 Qf8 Bf3 Qf7 Bg4 Qf8 Bge6 Kf3 Rg4 Qf7 Rf4+ Kg3 Rf5 Kg4 Qd4 Kh5 Rf3 Qf8 Rfc3 Qf3 Rb2 Qf8 Bd3 Qf7 Qa7 Qf3 Rcc2 Ng4+ Kd4 Nh2 Ke5 Qff2 Qd4 Qg2 Qf5 Qgf1 Qf3+
1qR2N2/3rrn1r/rb4RQ/1P1P4/rP2N3/1K1NPr1b/1r2n1pk/2bQ4 w - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 b5 axb5 g5 b3 h5 Qc2 e6 Kd1 e5 f4 gxf4 g5 Bb4 Bb2 Ba3 Kc1 f3 Bh3 f2 Bg4 hxg4 Qd1 Be7 Bd4 Bb4 Be3 Bf8 Bf4 exf4 Kc2 Ke7 d4 Ke6 h4 Kf5 b4 f1R g6 c5 e3 a5 g7 f3 h5 c3 h6 f2 d5 a4 h7 g3 Qe2 a3 Rh2 c4 Ra2 g2 Qd1 Nh6 g8N Ra4 Ne2 Kg4 Rh1 f5 Rh3 f4 Ra1 a2 Rf3 Nf7 Qd4 Bc5 Nd2 Nc6 Qf6 Bb6 Nd4 Rb1 Ne7 f1R Rh3 f3 Qd6 f2 Qe5 Bd7 Qd6 Qb8 Nc8 Rb3 Rc1 a1R Qf8 Be6 Rh2 Kg3 Nd6 Bh3 Re1 Ra6 Re2 R1a4 Ne6 Rh1 Qh6 f1R Nb1 Rd8 h8Q Rd7 Qd4 Rf3 Nb7 Re7 Qd1 Rb2+ Kc1 c2 Nf8 Rd7 Nc5 Nd4 Nc3 Re7 Re1 Ne2+ Kd2 Rd7 Nd3 c1R+ Qc2 Rca1 Rc1 Bg4 Rh4 Bh3 Ne4+ Kh2 Rg4 R1a2 Rg6 Raa7 Ne5 c3+ Kd3 R2a3 Qd1 c2+ Kc4 R4a6 Nd3 R3a4 Rb1 c1B Ra1 Bd2 Rc1 Re7 Rc3 Bc1 Rc2 Rad7 Rc3 Rd2 Kb3 Rc2 Rc7 Rb2+ Kc4 Rb3 Re6 Rb2 Qf6 Bf5 Rc8 Kh3 Qg5 Rh2 Rg6 Bg4 Nec5 Kg3 Qh5 Rh4 Ne4+ Kh2 Qg5 Bh3 Qh5 Rc2+ Kb3 Rd2 Qg5 Rh7 Qh6 Rb2+
2Rb3Q/B2n4/2nKq1nn/1B6/PQ3p1q/1nb1n1P1/PP1k2br/r4B1R w - - 0 1 illegal: Other
2n1R1Rr/BQPn3P/1b1k2qP/np1r3B/qR2n3/P4Q2/7K/bbn1b3 w - - 0 1 legal: proof: e4 e5 b4 c5 d4 cxd4 g4 f5 b5 h5 gxh5 a6 Nh3 axb5 Ng1 b4 Ne2 d3 Nd2 Qb6 Nd4 exd4 e5 Qd8 Ne4 fxe4 f4 Ke7 Kf2 d5 Kg3 b5 h4 g5 c4 g4 c5 b3 a3 b2 f5 b1N c6 d2 h6 d3 e6 e3 h7 e2 f6+ Kd6 h5 e1B+ Kg2 d4 f7 g3 h6 Bg7 f8Q+ Ne7 c7 Qe8 Rg1 Qg6 Qe2 d1N Rh1 d2 Qd8+ Nd7 Qf3 d3 Qf2 Ne3+ Kg1 d1N Bg2 d2 Rh3 Ndc3 Bf1 d1Q Rh4 g2 Qf3 Na2 Qb7 Qa4 Qg8 Nc4 Qf7 Na5 Kh2 Nbc3 Rb4 Ne4 Be3 Nc1 Be2 Bgc3 Ra2 Ba1 Qf3 Rd8 Ba7 g1B+ Kh1 Bb6 Kh2 Rf8 Bd1 Rf5 Rg2 Rd5 Rg1 Qe8 Rg8 Qg6 Qb8 Bb7 Be2 Bc6 Qb7 Rd8 Bd1 Nc8 e7 Re8 Rg7 Rh8 e8R Rf5 Rgg8 Bd5 Qf2 Ba2 Bh5 Bb1 Qf3 Rd5
Q2N3n/1BB1b3/rPQ4P/N1QP4/7n/1nqr2bK/p1Pq2b1/1qqbk3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 exf4 b6 c5 h4 d5 e4 Qg5 b5 Qh6 e5 Qh7 Ra4 Qd3 Re4 dxe4 Rh3 Qd7 Rb3 Qd8 Rb4 cxb4 Kf2 Kd7 Kg2 Ke6 d4 Kd5 h5 a5 e6 g5 e7 f5 e8Q f3+ Kg3 f4+ Kh2 g3+ Kh1 g2+ Kh2 g4 h6 f2 b7 a4 b6 e3 Be2 f1B Ba6 a3 Nf3 g1N Qg6 a2 Ne1 g3+ Kh1 b3 Qgd3 f3 Qc4+ Ke4 Qc7 f2 Ng2 e2 Bd3+ Kf3 Qd7 b2 Qe6 Ne7 Qd7 Nbc6 b8Q Ra6 Qdc7 Bg4 Nc3 b1Q Qcc8 Na5 Bf4 Nb3 Bg5 Ng6 Bf4 Be7 Qc1 e1Q Ne2 Qc3 Ne3 g2+ Kh2 Qd5 Qbb7 Rd8 Qc5 Nh8 Bc7 Rd7 Qa7 Qg5 Nc4 Qgd2 Na5 Ke3 Qc6 Nf3+ Kg3 g1B Be4 Nh4 Qa3 Bg2 Qac5 f1Q Nf4 Qfc1 Qaa8 Bd1 Ne6 Ke2+ Bf3+ Ke1 Nd8 Bh2+ Kg4 Bh1 Kh3 Rd6 Qe8 Bg3 Bb7 Rf6 d5 Rf3 Qeb5 Rd3 Qbc6 Bg2#
3r2n1/B1n4k/r1QbPR1r/Nb1brr1q/p4bPP/3N4/1Pr3NN/5K2 w - - 0 1 legal: proof: d4 h5 f4 g5 a4 gxf4 g3 f3 d5 b5 axb5 e5 d6 h4 Na3 h3 Bg2 hxg2 Nb1 cxd6 Ra4 d5 Rg4 d4 Rf4 exf4 c4 a5 e4 f5 h4 Kf7 g4 Kg6 b6 d5 c5 f2+ Ke2 f1B+ Kf2 f3 e5 d3 c6 a4 b7 d2 c7 d4 e6 d3 Ne2 g1B+ Kg3 f2 Rh2 f4+ Kf3 Qe8 Nbc3 Ra6 Rg2 Kh7 Nd4 Bh2 Rg3 Bd6 Qc2 d1R Nd5 Qh5 Ne3 Re1 Ng2 Re5 Qc6 d2 Rh3 d1R Be3 Bd7 c8N Bb5 Ne7 f1R+ Bf2 Rc1 Nd5 Rfd1 Nb4 Rc2 Nd3 Bg3 Rh1 Bc4 Rf1 Bh2 Qb6 Bdb5 Qc6 Bb3 Ne3 B3c4 Kg2 Bd5+ Nf3 Bg3 Kg1 Rdd2 Nh2 f3 Ng2 Bf4 Ba7 f2+ Kh1 Nd7 b8N Ndf6 Qc5 Rd1 Nc6 Ne8 Na5 Nc7 Qb6 Kg7 Qc6 Rh6 Re1 Rdd2 Re3 Kh7 Rf3 Bg5 Rf6 f1R+ Bg1 Rff5 Ba7 Bf4 Kg1 Rc5 Kf1 Rdc2 Qa8 Rcc6 Qc8 Rcb6 Qe8 Rb8 Qc6 Rd8
Q2Q1q2/2b1Qr1r/1R5n/b1KPN1b1/b5PN/4rq1p/1PR1q2P/1q4bk w - - 0 1 legal: proof: c4 d5 a4 dxc4 d4 b5 f4 bxa4 e4 f6 f5 Be6 d5 Na6 Bf4 Bc8 Be5 Nb4 d6 Nd5 exd5 fxe5 f6 g6 Bd3 Be6 Bc2 Bc8 Bf5 gxf5 Ke2 Kf7 Ke3 Kg6 g4 Kg5 f7 Kh4 d7 a5 Ra2 c5 Na3 h5 Qc1 c3 Nf3+ Kh3 Nd4 Kg2 Ne6 e4 Ng5 e5 Nh3 c4 Nb1 c2 Qe1 c1B+ Nd2 c3 Ng1 h4 Ra1 h3 Qh4 f4+ Ke2 f3+ Ke3 a3 Qh5 a2 Ne2 a4 Qh6 a3 Qg6 c2 Qh5 f2 Rb1 a1Q Qh6 f1Q Qh4 a2 Ng1 Bd6 f8Q Ra7 Qh5 Bc7 Qff5 Nh6 Qhg5 Qf8 d8Q Bd7 Qgf6 Ba4 Qdc8 Rh7 Qa8 Qf4+ Ke2 e3 Kd3 e2 Qb7 e1Q Qfb6 e4+ Kc4 e3+ Qe4+ Qf3 Qa8 e2 Kd4 Rf7 Nc4 Bg5 Rd1 c1B Rd2 Qb1 Rc2 a1R Qe7 Ra3 Ne5 Re3 Kc5 Qef2 Qbb8 e1B Qd8 Q3e2 Ngf3 Bea5 Rf1 Rh7 Nd4 Qf2f3 Nf5 Bcd2 Rf2+ Kh1 Nh4 Be1 Rg2 Bf2 Rg3 Q3f5 Rf3 Bg1 Rf2 Qe4 Rf6 Q4f3 Rb6 Ra6 Rb4 Rf6 Rb6 Rff7
4B1R1/2K2nP1/qn1pkr2/PP4n1/1nN1p1R1/r1qb3b/n2b1P2/2RQ1R2 w - - 0 1 legal: proof: e4 a5 h4 g5 d4 gxh4 d5 f5 exf5 c6 Be2 cxd5 Bf1 d4 b3 a4 Bb2 a3 Qe2 axb2 Qg4 Ra4 Qd1 Ra8 a4 b5 a5 Qb6 Nc3 Qd8 Na4 bxa4 Ke2 Kf7 Kd3 b1B Ke4 h5 Ke5 d6+ Kd5 e5 c4 d3 g4 a3 f6 d2 b4 a2 b5 h3 g5 h2 c5 h4 c6 h3 c7 Nd7 Kc6 Nh6 g6+ Ke6 f7 Nb6 Ne2 Qf6 Nc1 Bd3 Qa4 d1N Qd4 Nc3 Rb1 a1N Qe4 Na2 Qf4 Nc2 Rg1 h1N Qa4 h2 Ra1 Ng3 Nb3 h1Q+ Bg2 Ne4 Raf1 Ng5 Qd4 e4 Bf3 Qh3 Bh5 Bg7 f8R Nhf7 Rg8 Bh6 g7 Qe5 Qc5 Qc3 Rg4 Bd7+ Kb7 Ncb4 Nd2 Rf8 c8R Qe3 Qc7 Qec5 Nc4 Qc6+ Kb8 Rh7 Qd8 Qa8+ Kc7 Qa6 Bg6 Nh3 Bh5 Bd2 Qh4 Nhg5 Qh1 Rh6 Bg6 Rh3 Qg1 Nh6 Be8 Rf6 Kb8 Re3 Rc5 Nhf7 Kc7 Re1 Qh1 Rb1 Qf3 Rb3 Qd1 Ra3 Ne3 Qd4 Rc1 Qc3+ Nc4 Kd5 Rf4 Bh3 Rg4 Ke6
qrr5/2Q1bk2/bP1b4/N1P1K1BP/p3NnP1/2Q1pq1B/b3nr2/5Qn1 w - - 0 1 illegal: No possible last move
Bq1qk1K1/5nPp/1qpPP3/q4NB1/2QQ1rq1/1n1b1qnP/2QN4/6b1 w - - 0 1 legal: proof: c4 d5 d4 a5 b4 axb4 a4 dxc4 d5 e5 Ra3 Qe7 Rd3 Qd8 Rd4 exd4 g4 b5 e4 g5 f4 Ra6 e5 Bg7 e6 Nc6 d6 Nb8 Nh3 Rc6 Be2 Rc5 Rf1 Re5 fxe5 Bf8 Rf4 gxf4 Kf2 f5 Kf3 c6 a5 b3 g5 b2 a6 c3 g6 b4 a7 c2 a8Q d3 e7 d2 Qa7 b3 Qa3 Bg7 Bf1 Nh6 Qa4 Nd7 Bg2 Nc5 Qc4 Ba6 Ng1 Kd7 h3 Rf8 Nc3 b1Q Ne4 b2 Qb5 Qa5 Qde2 d1Q Be3 c1Q Ng3 Rf7 Kf2 f3 Bf1 f4 Qc2 Qcd2+ Be2 Qd8 Qb4 Bf6 g7 Bg5 Qd4 Q2a5 Nf1 Bc4 Nd2 Bb5 Bf1 Rf6 Ne2 Rf5 Kg1 f2+ Kg2 f3+ Kg3 Bf4+ Kh4 Bh2 Ng3 Bg1 Be2 f1N Bf4 Rf7 Kg5 f2 Be3 Rf3 Nf5 Ng3 Kf6 f1Q Bg5 Rf4 Bc4 Qg4 Be6+ Ke8 Bc8 Qff3 Bb7 Kd7 Ba8 Bf1 Qdc4 Bd3 Q2b3 Qe1 Qa2 b1Q Qac2 Bf1 Qd4 Qbb8 Qdc4 Qeb1 Qd4 Ng8+ Kf7 Q1b6 Qdc4 Bd3 e8Q+ Kc8 Qe7 Nb3 Qf6 Kd7 Ne7 Qdc7 e6+ Kd8 Kf8 Qcc8 Kf7 Nh6+ Kf8 Nf7 Kg8 Qd7 Nf5+ Ke8 Qfd4 Qdd8
2n1rb1n/3p3B/RQ1p4/r1Pqp1K1/5PP1/nbB1k2P/1QB4b/r2R1r2 w - - 0 1 legal: proof: d4 f5 b4 a5 e4 axb4 d5 h5 f3 h4 d6 cxd6 f4 g5 Nc3 g4 Nf3 Kf7 Ne2 Ke8 exf5 gxf3 g4 Ra5 Ng3 hxg3 Rb1 Ra4 Ra1 Ra8 Kd2 Kf7 Ke3 e5 a4 b5 c4 g2 a5 g1B+ Ke4 f2 f6 Ke6 h3 b3 c5 b4 f7 b2 a6 b1N a7 b3 Ke3 b2 Bd3 Kd5 Qc2 f1R+ Qf2 Bb7 Bf5 Bh2 Qh4 Ne7 Bh7 Nbc6 Qf2 Ng6 Ra6 Na3 Bd2 b1R Bc3 Nce7 Qb2 Nc8 Rg1 Ra1 Rh1 Bg7 f8Q Qc7 Qd8 Qc6 Rg1 Re8 Qdb6 Bf8 Rh1 Nh8 Bc2 Rf2 Rd1+ Kc4 Bh7 Rf1 Bc2 Qd5 Bh7 Rb8 a8B Bc6 Bb7 Ba4 Bc6 Bb3 Ba4 Qf7 Ke4 Qd5+ Kf5 Ra8 Rb1 Kd3 Kg5+ Ke3 Rd1 Bc4 Bac2 Bb3 Qb7 Rb8 Qc6 Rb5 Qb6 Ra5
Nr4nk/BQ1q1r1N/P4p2/1B1Q1Pn1/2b4P/2K3p1/3p1rPb/rb2b1B1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 d4 e5 Ra3 b3 Qd3 bxc2 Qg6 Na6 Rhh3 Nb8 Rac3 h6 Rc4 h5 Rd3 dxc4 d5 c3 Rd4 exd4 Qxh5 Bc5 Qh7 Bf8 e4 f6 Qf5 Kf7 f4 b5 e5 c5 d6 g5 e6+ Kg7 a5 b4 d7 c4 a6 d3 e7 b3 e8Q b2 Nf3 g4 Ng1 Nc6 Nh3 Nd4 Bd2 c1B Ng5 c2 Qfe5 c3 f5 Bb4 Be2 Rh7 Qc7 Nf3+ Kf2 Rb8 Ke3 Kh8 Qa5 Rf7 Nh7 Ng5 Kd4 g3 Be1 Be3+ Kc4 c1R Bf2 c2 Qe7 Bc3 Na3 Ra1 Nb5 b1B Nc7 c1R Na8 Rf1 Qa2 Qe8 d8B Be1 Bb6 d2 Ba7 Be6+ Kc3 Qc8+ Qc7 Qd7 Bb5 Bd5 Qac4 Be6 Qd4 Bc4 Qd5 Bc5 Qcb7 Bb6 Bd4 Rf4 Be5 Bg1 Bed4 Bh2 Bg1 Rf2
8/n1QpKb2/1PPr1bkP/rP2Q3/2QqpBN1/pNn5/p3B1n1/3nq3 w - - 0 1 illegal: No proof kernel
1q4QB/4kbn1/PPb1p3/2Pr2p1/1NN1b1P1/1B1Qp3/2pn2pb/K1N1n3 w - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 h5 a4 b5 Ra2 bxc4 Ra3 h4 Rg3 hxg3 b4 a5 b5 Ra7 Na3 Ra6 Nb1 Ra8 h4 Bb7 Qb3 Kf7 Nh3 Bd5 Na3 Rh6 Ke2 Raa6 Bg2 Nc6 Bb2 Qc8 Rb1 Rh7 Ng1 Nb8 Bf1 Bb7 Qd1 Ra8 Bc1 Ke8 Ke1 Qd8 Rb4 Rh8 Nb1 Bc8 Qb3 axb4 Qc2 Rh6 Qd1 Rh8 d4 c5 Ba3 c3 Bb2 c4 Bc1 Ra6 Bd3 Rc6 Bf1 Rc5 dxc5 Rh7 Bd3 Rh6 Bf1 Rh8 f4 d5 b6 g5 h5 d4 h6 b3 h7 e3 f5 g2 f6 d3 a5 d2+ Ke2 c2 a6 b2 Na3 b1B Qe1 c3 Nb5 Bb7 Ba3 c1N+ Kd1 Nb3 Na7 Nh6 Nc6 Nf5 Bc4 Nd7 Qf1 Ne5 Bb2 Qb8 Nb4 Bc6 Qd3 Nf3 Ne2 Ng7 Nc1 Ne1 Ba1 e6 f7+ Ke7 Bd5 Rg8 h8Q Be8 Qhh7 Rh8 Qg8 Rh1 Qd4 Be4 Qd3 Rf1 Bc4 Rf5 Bb2 Rd5 Ba1 Nf3 Kc2 d1B+ Kb1 c2+ Ka2 Nbd2 Bb3 Ne1 Bc3 Kd8 Ka1 Bd6 f8N Bf7 Nd7+ Ke7 Ne5 Bdf3 Nc4 Bh2 Bd4 Rd6 Bb2 Bc6 Be5 Bfe4 Bd4 Rd5 Bb2 Nf5 Bh8 Ng7
r1qn1b1n/1q3q1k/bp6/1PpP1r2/3P1n1b/NNNb3b/2P2R2/Q4NKB w - - 0 1 illegal: Other
2r1q1r1/3nQPbp/P4n2/1NB1n2r/2bqn1N1/1Q1p1k1P/B2P4/Bn1K2b1 w - - 0 1 legal: proof: f4 b5 e4 f5 a4 Nc6 c4 Nb8 g4 g6 b4 bxc4 b5 a5 Nh3 Ba6 Be2 Bc8 Rf1 fxe4 f5 g5 Rf4 gxf4 Ra3 Nc6 Rb3 Nb8 Rb4 axb4 a5 Kf7 f6 Kg6 g5 Kf5 a6 e5 b6 d5 f7 c5 b7 c3 g6 f3 g7 Kg4 Bc4 c2 Bb2 c1R Bb5 c4 Be8 b3 Ba3 c3 Ng1 c2 Be7 d4 Ne2 b2 Nf4 e3 Na3 b1N Nd5 e4 Nf4 e2 Bb5 Be6 Bc6 Nf6 g8Q+ Bg7 Be8 Nbd7 b8B Bc4 Be5 Rc8 Qf8 Rg8 Kf2 e1B+ Kg1 e3 Nd3 e2 Nb5 f2+ Kg2 f1N Ba3 Bf2 Bc5 Ng3 Qe7 Nge4 h3+ Kf5 Kf3 e1Q Qe2 Bg1 Qe3 Qh4 Ke2 Re1+ Kf3 c1N Nf2 Nd3 Ng4 Rc1 Ke2 Rc2 Bb8 N3e5+ Kd1 Rc3 Qd3 Kf4 Qc2 d3 Qb3 Kf3 Bba7 Nb6 Bd7 Qe8 Be6 Nbd7 Bd4 Qf2 Bac5 Rc2 Ba1 Qd4 Bd5 Ra2 Bc6 Be6 Bd5 Ra5 Bc4 Bd5 Qc3 Be6 Ba2 Bc4 Qb3 Ra8 Nc7 Nc6 Bd6 Rh5 Nb5 Nce5 Bc5 Rc8
7r/1RNbrp1b/1bN2N1p/1r5Q/b1P2r2/2Pqp1bP/k3P1Qn/n3KR2 w - - 0 1 illegal: Other
1qB1R3/2qrQ2P/p1BQ4/R2p1K2/P1p2b1b/npP2k2/b6P/n1Bqr2r w - - 0 1 illegal: Other
2Q5/1rpPq1Q1/bp3p2/bBP2P1b/3N1nnp/2NKp1bP/5r1k/2B2B1n w - - 0 3 legal: proof: b4 d5 a4 a5 e4 axb4 Ra3 dxe4 g4 bxa3 f4 g5 f5 Kd7 Nh3 Bh6 Be2 Bf8 Rf1 Ke8 Rf4 gxf4 c4 Kd7 d4 Kd6 Kd2 h5 a5 e5 a6 b6 a7 a2 d5 a1B g5 f6 g6 e3+ Kc2 e4 g7 Ke5 c5 f3 d6 f2 d7 f1B Bg4 h4 Bf3 e2 Bd2 e1N+ Kc1 e3 Be2 Na6 Nf2 Kf4 h3 Kg3 Bb4 Ng2 Kc2 Kh2 Nd2 Qe7 Nb3 Nh6 g8Q Nf4 Qb1 Bc3 Bd3 Be2 Qc1 Bh5 Bb5 Ng4 Ba3 Ba5 Nd1 Nb4+ Kc3 Ba6 Nd4 Bh6 Qc8 Nbd3+ Kc2 Bg5 Nc3 Ndf2 Bb2 Rb8 a8B Rg8 Bg2 Nh1 Bgf1 Rb7 Qa1 Ne6 Qa4 Bf4 Bc1 Bg3 Qb3 Nf4 Qf7 Rg5 Qg7 Be1 Bbc4 Ne5 Bd2 Rg2 Bb5 Bf2 Bc1 Ng4 Kb3 Bg3 Kc4 Nd5 Kd3 Rd2+ Kc4 Rf2 Kd3 Nf4+
4r3/k2p1r1n/6bp/2KN4/2B1PNp1/BrQqQ2P/pbrP1P1p/4b1Nn w - - 0 1 illegal: No proof kernel
3KB1r1/r1P3q1/2rr4/4Rq2/1P2P1rR/2kp2P1/q1b2NRR/nr2N1b1 w - - 0 1 legal: proof: d4 a5 b4 c5 f4 cxd4 Qd3 e5 a4 b5 axb5 exf4 Qh3 a4 Qa3 Ra5 Qd3 Ra8 g3 g5 Qb3 axb3 Kd1 Nc6 Bd2 f3 Bf4 Ne5 h3 Ng4 hxg4 gxf4 Ra7 f2 Ra2 Qa5 Ra1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b6 f5 Kb5 h5 c4 d5 Kc6 d3 g5 Kd4 c5 b2 g6 h4 b7 f3 b8R f4 g7 d2 Ra2 d1R Ra7 h3 Rh2 Qd7+ Kb6 Nf6 g8R Ng4 c6 Bc5+ Kb5 Qg7 c7 Ne3 Kc6 Nc2 Rd8 Bf5 Nc3 b1R Rd7 Rg8 Ne4 Na1 Bg2 f1Q Re8 f2 Rb8 f3 Ra2 Ra7 Nd2 Bc2 e4 Qa6+ Rb6 f1Q Rd8 f2 Ndf3+ Kc3 Re8 d4 Ne1 d3 Bf3 Rdc1 Rg2 h2 Bh5 h1R Re5 Rh4 Nh3 Rg4 Be8 Qa5 Rb2 Qe2 Rh2 f1R Nf2 Qa2 Rb5 Qf3 Reh5 Bd4 Rbe5 Qf5 R5h4 Bb6 Nh1 Bg1 Nf2 Qgh7 Kd6 Qh6+ Ke7 Qhg6 Kd8 Qg7 Nh1 Rff4 Re2 Rg6 Rg2 Rfg4 Rgh2 Bd1 Rbe2 Bc2 Reg2 Rc6 Nf3 Rf1 Ne1 Rff4 Nf2 Rgg6 Rb5 Rfg4 Re5 Rgd6#
r2N2br/r4P2/3q1n1B/2N1nk1P/1P1q1rN1/1KNP4/1b2rbRr/4q2B w - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ne2 g6 Ng1 g5 g4 h6 b4 Ba6 f5 Bb7 Ra3 Bc8 Rf3 h5 Rf4 gxf4 g5 Bg7 Qf3 Bf8 Qg4 hxg4 Kd1 Kd7 Kc2 c5 h4 e5 d3 a5 f6 Ke6 b6 e3 b7 e4 g6 e2 h5 e1Q g7 e3 Nc3 a4 Ba3 g3 Bc1 g2 Rh2 f3 Rh4 a3 Rf4 a2 Rd4 a1R Nb5 f2 Ne2 g1Q Re4+ Kf5 Kb2 c3+ Kc2 c4 Rd4 Bc5 Rd7 Nc6 b8N R1a7 Rd5+ Ne5 Bb2 Be6 Na6 Qd6 Bg2 f1R Ba1 Rf4 Nbc7 Bd4 Bh1 Bf7 Nc1 e2 Nc5 Bf2 N7e6 Qg4 Nd8 Qh4 Kb1 c2+ Kb2 c3+ Kb3 Qg4 Na2 c1R Bb2 c2 Nc3 Rd1 Bc1 Rd2 Ba3 c1B Bb2 Bg6 f7 Nf6 g8N Bh7 Ba3 Bb2 Nh6+ Kg5 Rd4 Bg8 Rd5 Qgd7 Ng4 Kf5 Rd4 Rc2 Re4 Qd4 Re3 Q7d6 Rg3 Qc1 Rg2 e1R Nb1 Ree2 Nc3 Ba1 Bb2 Qe1 Bc1 Bb2 Bd2 Re3 Bc1 Rh3 Be3 Re2 Bc1 Rh2 Bd2 Rf3 Bh6 Rf4
4qr1n/2p3q1/R1P5/2bRR1b1/nP1N1rqN/2PB1qk1/4P3/1qKR2br w - - 0 1 legal: proof: g4 e5 f4 exf4 a4 b5 g5 bxa4 d3 Ba6 Bg2 Bc4 dxc4 h6 Qd4 f3 Qf6 gxf6 g6 f5 Bg5 hxg5 Bf1 f4 Kd2 Ke7 h4 Ke6 b4 Ke5 h5 f5 g7 a5 c5 d5 c6 a3 h6 f2 h7 f3 Kc1 Kf4 Rh6 a2 Bg2 f1R+ Kd2 f2 Rh3 d4 Rd3 g4 Rb3 a4 Rd3 g3 Ra3 d3 Rc3 a3 Rb3 Bc5 Nc3 Qe8 Rbb1 Nh6 g8R Nd7 Rg6 Nb6 Rf6 Na4 Rd6 Nf7 Bf3 g2 Rd8 Kg3 Rd5 f4 Nh3 g1B Bg2 f3 Re1 Rc8 Kd1 d2 Rc1 a1Q Rd3 a2 Nb5 Qg7 Nf4 a1B Ng6 Bf6 c3 Bg5 Nd4 Rd8 Kc2 d1Q+ Kb1 Qd2 Nh4 Qf4 Red1 Qg4 Rc2 Rf8 Ra2 Nh8 Ra3 Rf4 Kc1 Rb8 Re3 Re1 Re5 f1Q Ra1 f2 Be4 Qg2 Bd3 f1Q Ra2 Q2f3 Ra1 Ng6 h8R Rc8 Rf8 Nh8 Rf7 Qee6 Ra2 Rf8 Rd7 Qe8 Ra1 Qd5 Ra3 Qa2 Rd8 Qff3 Rdd5 Qb1+ Kd2 Nb2 Bg6 Bh2 Ra6 Na4 Bc2 Rh1 Bd3 Qb3 Kc1 Bg1 Ra8 Qa2 Ra6 Qb1+
1n2k3/2pR4/1pq4p/KPPrBP2/1B1n2nN/1bR1b1R1/1Pb3br/2Rr4 w - - 0 1 legal: proof: d4 f5 e4 h5 a4 e5 Qe2 exd4 e5 Qe7 Qg4 Qc5 Qe4 Qb5 axb5 fxe4 h4 Bd6 g4 Be7 g5 Bb4+ Nd2 Bc3 Be2 Kf8 Bg4 hxg4 h5 Nf6 h6 Bb4 h7 Bd6 Nf1 Ng8 Ng3 Ke8 Nf5 Bf8 Nh6 gxh6 Kd2 d5 c4 a5 f4 a4 e6 g3 e7 d3 Kc3 d4+ Kb4 a3 g6 e3 g7 d2 Rb1 d1B Rh5 e2 Nh3 e1N Rf5 d3 Rf7 g2 Rf6 g1R Rc6 a2 Nf2 a1Q Ne4 d2 Ra6 Rg2 Rc6 Nf3 Ng3 Qa6 Rd6 Rh2 Rd7 Qc6 Nf5 Bb3 Nh4 d1B Bd2 Nd4 Rc1 Nf6 g8R Bdc2 Rg3 Ng4 f5 Ra1 Bc3 Rg8 h8B Bg7 Rd5 Be6 Rd7 Bd5 c5 Bg2 Be1 Rb1 Ka5 Be5 Bc3 Bf4 Bb4 Be3 Be5 Rg6 Rd1 Re6 Rd3 Rd1 Rc3 Kf7 e8R+ Re7 Rdd8 Rd7 Re6 Rd5 Rd7+ Kf8 Red6 Ke8 Rg6 Bh1 Rg1 Bg2 Rg5 Nf6 Rg3 Ng4 Re1 Rd3 Ra1 Rd1 Rc1 b6+
4b1K1/3rp3/rP1PBBN1/pq1r2b1/2bBPn2/Pk3B2/2rr1n2/nN4Rn w - - 0 1 legal: proof: g4 b5 f4 d5 e4 g5 b4 d4 c4 bxc4 d3 Na6 Na3 Nb8 Be3 gxf4 g5 h5 Qg4 hxg4 Rc1 Nd7 Rc2 Nb8 Rc3 dxc3 Kf2 Kd7 h4 Kc6 h5 f5 g6 a5 d4 g3+ Kf3 c2 h6 c1N g7 c3 h7 g2 Bf2 c2 Nc4 Kb5 d5 Ka4 b5 c5 d6 Bd7 a3 Nd3 b6 c1R Nh3 g1R Bd4 Nf6 g8B Be8 Ba1 Na6 Ng5 Kb3 Be6 Bh6 Bd7 Ng4 Rh4 Rc2 Rh3 Ngf2 Bc8 Qd7 Bc3 Nab4 Ba1 Ra6 Nb2 c4 Rh1 c3 Bb7 Qb5 Bh3 Rd2 Bg2 c2 Rh5 c1R Nd1 Nc2 Bf6 Na1 Bc8 Rcc2 Nf7 Bg5 Nc3 Rgd1 Nb1 Rg8 h8B Rf8 Bh1 Rg8 Kg2 f3+ Kg3 Nf4 Ne5 Rd5 Rh3 R1d2 Ng6 Nd1 Rh6 f2 Bb2 f1B Nc3 Bc6 Be5 Nh3 Nb1 f4+ Kg4 f3 Kf5 f2 Ke6 Bc4 Kf7 f1N Bbd4 Nf4 Bf6 Nf2 Bf3 Rd8 Be6 Be8+ Kg8 Ng3 Rh1 Rd7 Rg1 Ngh1
2n5/2q1R2n/NN4K1/Rp1NqQP1/br1b1bb1/1P1p1N1b/p2P1rkP/r7 w - - 0 1 illegal: No proof kernel
1R1r4/Pp1r2qK/nrbQpb2/Nn1n3p/1R1r1rN1/1P6/2PkP3/R3r2R w - - 0 1 illegal: No possible last move, all moves rejected
2RQ3q/b1pppK2/Bnq5/1Rb1bb2/2r1Bn1B/b3r3/P1PPB1P1/3b3k w - - 0 1 illegal: Other
B1bk4/QB3p2/NnBb1pN1/2q2Ppn/3q3p/3r3b/1rPP1q1P/2r1B2K w - - 0 1 illegal: No proof kernel
r6b/K1br1PR1/n2b2p1/1RQ1n3/1RpN1P1r/3PQ3/p3bP1Q/4kr2 w - - 0 1 legal: proof: g4 f5 gxf5 b5 a4 bxa4 b3 h6 e3 c6 Ba3 Qc7 Bb2 Qf4 exf4 Ba6 Bh3 Bb7 Bf1 Bc8 c4 Bb7 b4 Rh7 b5 Bc8 Bf6 Rh8 Bg5 hxg5 b6 d5 c5 Rh4 Bb5 cxb5 Na3 Rh8 Nc4 dxc4 Ke2 Kd7 Ke3 Kc6 Kd4 e5+ Ke3 Kd5 h4 a5 h5 g4 b7 e4 c6 a3 c7 a4 d3 b4 f6 g3 h6 b3 f7 b2 h7 b1R Rh3 g6 Qe2 a2 Qd1 g2 Qf1 a3 Qd1 Nh6 Qe1 Bg4 c8Q Bd6 Qf1 Na6 b8Q Rb7 Qb1 Rd7 Q8b6 Be2 Nf3 g1R Nd4 Rf1 Q1b2 Bc7 Rb1 a1B Qc3 a2 Rb4 Bd6 Qa3 Bb2 Qcd8 Bc3 Qh4 Bb2 Rh1 Ba1 Qh2 Ng4+ Kd2 Ne5 Ke3 Bc7 Rg1 Bb2 Rg5 Bc3 Rb1 Bb4 Qa7 Bbd6 Rb4 Rhg8 h8R Rg7 Nf3 Rh7 Nd4 Rh5 Rh7 Rh4 Kd2 e3+ Kc3 Bg4 Rf5 e2 Rg7 Bh5 Qc1 Bf3 Qe3 e1B+ Kb2 Bh5 Ka3 Bc3 Ka4 Be2 Kb5 Bb8 Kb6 Bbc7+ Kb7 Bb2 Qb8 Kc5 Qc8 Bc3 Rb1 Bb2 Rh5 Kb4 Rg5 Kc3 Rh5 Nc6 Rb5 Ne5 Qf8 Ba1 R1b4 Bb2 Qe4 Kd2 Qe3+ Ke1 Qe7 Re8 Ka7 Ba1 Qg5 Bb2 Qf5 Ra8+ Kb7 Rad8 Nb3 Ng4 Rh7 Bf8 Qfc5 Bfd6 Ka7 Bh8 Rg7 Ne5 Nd4 Ra8+
2b4Q/P2kpP1R/3n3q/4n1b1/1Q1QK1pp/1qB1P1r1/r2rPp2/R4R2 w - - 0 1 legal: proof: g4 c5 b4 cxb4 h4 a5 g5 Qb6 g6 Qe6 Bh3 Qe3 Be6 a4 Bb3 axb3 dxe3 Ra5 Kd2 Ra4 Ke1 Ra8 f4 b5 f5 f6 Bb2 Kd8 Bc1 Ra6 Nd2 Rc6 Ngf3 Rc5 Ng5 fxg5 f6 g4 f7 Nh6 Ne4 Ng8 Nf6 Rg5 hxg5 gxf6 Kf2 h5 a4 d5 c4 d4 g7 f5 a5 b2 a6 b1Q c5 h4 c6 b3 g6 b2 c7+ Kd7 Kg2 f4 Rf1 f3+ Kf2 d3 Qa4 d2 Re1 d1R Qf4 b4 Bd2 b3 Qf6 Nh6 g8R Nc6 g7 Nf5 Qe5 Nd6 Bc3 Qg6 Qd4 b1Q Rf1 b2 a7 Rh6 Qb4 Ne5 Rh8 Rd2 g8Q Qd1 Qg7 b1R Rh7 Qb3 Qh8 Rh5 Qf6 Bh6 Qff4 Bg5 Qfd4 Rbb2 Ke1 Qh6 Qdc5 Rd5 Qcd4 Rb1+ Kd2 f2 Rh1 Rg1 Rf1 Nf3+ Kd3 Rg3 Ra1 Ra5 Rhf1 Ra2 Qf6 Nb5 Ke4 Ne5 Qb6 Bf4 Q6c5 Rf5 Qcc4 Bg5 Qcc5 Rf6 Qcd4+ Rd6 Qdc5 Rdd2 Qcd4+ Ke6 Qd3 Bd7 c8Q Nd6+ Kd4 Rdc2 Qh8 Bc8 Qdc4+ Kd7 Qcc5 Ndc4 Ke4 Rd2 Qd4+ Nd6+
6K1/p3bbPQ/Pr3QPp/n1q1P3/1qqr4/N3Q3/4pRbN/3rkN1n w - - 0 1 illegal: No possible last move, all moves rejected
1n6/1NpbQn2/2PpRQ1R/1k1p1RK1/2b1P2r/2q1Q3/3PqnP1/1b1r3b w - - 0 2 legal: proof: b4 f5 b5 f4 e3 f3 Ba3 a6 Bc4 axb5 Bd6 exd6 Be2 b4 h4 fxe2 f4 g5 f5 Ne7 Kf2 Ng8 Nc3 Be7 Nd5 Bf6 Nf4 gxf4 Qb1 Kf8 Qd1 Bg5 hxg5 Ke8 Kf3 e1Q Kg4 b5 c4 f3 a4 h5+ Kf4 f2 a5 f1B c5 b3 f6 b4 e4 b2 a6 b1B g6 h4 a7 b3 g7 h3 Nf3 b2 Kg5 h2 Qb3 Rh4 Qe3 Nh6 Ra6 Bc4 Ne5 Qe2 Nc6 d5 Rf1 h1B Na5 Qe7 Rf5 Qe5 Rc6 Qc3 f7+ Ke7 Rg6 d6 g8R Kd7 Nb7 Kc6 f8Q Bd7 Re6 Kb5 c6 Nf7+ Kg6 Bbd3 Rh8 b1N Rh6 Qb3 Rfe5 Nc3 Qe7 Nd1 Rf5 Bb1 Qf6 Qc3 Qe7 Nh8+ Kg5 Nf2 Qf6 Na6 Qe7 Rf8 a8Q Nb8 Qaa7 Nf7+ Kg6 Na6 Qad4 Ra8 Qdf6 Nb8 Qf4 Ra2 Qe3 Rc2 Nc5 Rc1 Nb7 Nh8+ Kg5 Rg1 Qa7 Rd1 Qe3 Nf7+
3q4/1rQQ1NRP/rbp1Pnp1/1b3pP1/5nkp/1n2qrP1/1N1N2QK/8 w - - 0 1 illegal: No proof kernel
b2Q1Qnb/Q4P2/p5qq/1qn1Qr2/P2rP1KB/6Rp/4P1p1/Nk1b3n w - - 0 1 legal: proof: b4 b5 g4 e5 a4 f5 c4 bxc4 d3 e4 dxe4 Na6 g5 Nb8 Ra3 Kf7 Rg3 Ke8 Rg4 fxg4 h4 g6 h5 g3 h6 Nc6 Bg2 Nf6 Bf3 Nb8 Bh5 Ng8 Nd2 Bd6 Ndf3 Bc5 Ne5 gxh5 g6 Be7 g7 Bf8 Ng6 hxg6 f4 Kf7 h7 Ke6 f5+ Ke5 b5 d5 f6 c5 b6 h4 b7 d4 f7 d3 Rh3 Kd4 Rh2 Kc3 Kf1 d2 Kg2 a6 Kf3 h3 Rg2 g5 Qe1 Kc2 Rh2 d1B Rh1 g2 Rh2 g4+ Kg3 c3 Kf4 c4 Qd2+ Kb1 Qd7 c2 Ba3 c1Q+ Kg3 c3 Nf3 g1Q+ Rg2 c2 Qd2 Qd5 Qc3 Qh6 Qe3 c1N Qb6+ Qb5 Qd6 Nd7 b8Q Nc5 Qd5 N1d3 Nd4 Nf2 Qde5 Bb7 Qa7 Rd8 Nc2 Ba8 Na1 Rd4 Bc1 Be7 Bg5 Nh1+ Kf4 g3 Kg4 Bf6 Bh4 Ne7 g8Q Bg7 Qd8 Ng8 Rf2 g2 Rf3 Qf1 Rg3 Qff6 Qf8 Qfg6+ Kf3 Ne7 Qd8 Re8 h8Q Ng8 Qh7 Bh8 Qhg7 Re6 Qgf8 Red6 Qac7 R6d5 Qa7 Qd6 Kg4 Qdc6 Qee8 Rf5 Qe5 Qcg6+
2K2k1n/Q1P3q1/rRBb2n1/pppq2Q1/1P6/Qn5p/q1P1qP2/r1N4Q w - - 0 1 illegal: No proof kernel
nR6/1Pq2B2/1krPRqRn/R6K/2r4P/b4QR1/r1nPr2b/n6q w - - 0 1 legal: proof: c4 e5 f4 exf4 g4 h5 b3 g5 Ba3 d5 cxd5 b6 Bc5 bxc5 Nc3 Bd7 a4 Bb5 axb5 Be7 Ne4 Bf8 Nf2 f3 Ngh3 Bg7 Nf4 gxf4 g5 Bf8 Ng4 hxg4 Kf2 Kd7 h4 f5 e4 a5 b4 c4 e5 c5 e6+ Kc7 e7 g3+ Ke1 c3 e8R g2 Kf2 g1B+ Ke1 c4 g6 f2+ Ke2 f3+ Ke3 c2 Kf4 c1R g7 a4 Rb1 c3 Re6 a3 Kg3 a2 Rg6 a1N Bh3 f1Q Kf4 c2 Rd6 f2 Rh6 Bh2+ Kf3 f4 Kg4 f3 Rb3 Ra2 Rd6 Nd7 Re6 Nb6 Rbe3 Nh6+ Kh5 Na8 g8R Kb7 b6 Qc7 b5 Ba3 Rg7 Re8 d6 Qg2 Rg5 f1N Rg1 f2 Reg3 Ne3 Rd5 f1Q Qf3 Qh1 Rdg5+ Kb8 b7 Ka7 b8R Qf2 b6+ Ka6 b7 Kb6 Qg4 Qf6 Ra5 Rf8 Rf3 Qfe7 Ree5 Re8 Rgg3 Qg7 Rf6 Qf8 Rg6 Qf6 Qf3 Re7 Rf5 Re4 Rae5 Re1 Ra5 c1R Rfe5 Re2 Be6 Rc6 Bf7 Rec4 Re6 Nec2
2bK4/1n5q/nb3ppn/2N4R/3P4/P2Pn1b1/1kP1R1RQ/Rbr2Rr1 w - - 0 1 illegal: No possible last move
1NRqrrRn/1rn1p1b1/1nKrPPR1/k5r1/3P4/n4P1b/B3r2R/7R w - - 0 1 legal: proof: c4 c5 g4 h5 b4 cxb4 c5 f5 gxf5 a5 Qc2 d5 Qc4 a4 Bb2 a3 Qg4 axb2 Na3 hxg4 Nc4 dxc4 h4 Kd7 e4 Kc7 Ke2 b1N Ke3 g5 a4 b5 d4 b3 e5 c3 Ke4 c2 c6 Kb6 f3 c1R h5 b2 c7 b4 f6 g3 h6 g2 h7 g4 Bd3 g3 Rh2 b3 Ra3 Nc3+ Ke3 b1N Ra1 b2 Bf5 Nd7 Ne2 g1R Be6 g2 Ba2 Nd5+ Ke4 Rc6 Nc1 Nh6 Nd3 Bg7 Nc5 Ka5 Na6 Rf8 h8R Na3 Rg8 b1R Nb8 Rb7 Rf1 Nf7 e6 Nh8 Rb1 N7b6 Ke5 Bd7 c8R Nc7 Ke4 Rgc1 Ra1 R1c2 Rah1 g1R Ke5 Kb4 a5 Rd6 a6 Ka5 a7 Bb5 Ke4 Bf1 Ke5 Bh6 Rg6 Re8 Na6 Rab8 a8R Bg7 Ke4 Bh3 Ke5 Ra7 Ke4 Rbb7 Nb8 Re2+ Kd3 Rf1 Nd7 Rg8 Rcb8 Qf8 Kc3 Rg1 Kb3 Ka6 Kb4 Rg5 Rd8 Rb8 Re8 Rd8 Rb8 Rb7 Rc8 Ncd5+ Kc5 Ka5 Rc7 Rdb8 Rd8 Rc8 Nb8 Qe8 Rc6 Qd7 Rf8 Re8 Rc7 Qd8 Rc8 Rdd7 Kc6 Nc7 Rf7 Bh6 Rfg7 Rgf8 Rg8 Bg7 Rg1 Rdd5 Rgh1 Rd6+
n1rb3Q/1r3n2/1P2kP1R/p1pr1q2/1PP2np1/1bR1rR2/1R5R/2B2Kn1 w - - 0 1 legal: proof: f4 f5 e4 fxe4 g4 d5 a4 g5 f5 b5 axb5 d4 Kf2 d3 Be2 dxe2 Nc3 Nf6 Nf3 Ng8 Nd5 h6 Nf4 gxf4 g5 h5 Ne5 Qd7 Ng4 hxg4 Kg1 Qd3 Kf2 Qd8 d4 Kd7 b4 e1N h4 c5 d5 a5 b6 e5 h5 f3 d6 e3+ Kg1 e4 c3 e2 h6 e3 f6 f2+ Kh2 f1R g6 Ng2 h7 e1R g7 e2 Bd2 Rf5 Rc1 Nh6 g8R Ke6 d7 Nf7 Qb3+ Rd5 Qa2 Be7 Rf1 Na6 Kg1 Rb8 Rg6 Rb7 Rh6 Nc7 c4 Nf4 Rb1 Na8 Bc1 Qg8 d8R Bd7 Qa4 Qg6 Rb2 Qf5 Qa2 Re8 h8R Ba4 Qb3 Rf8 Qh3 Bb3 Rd7 Bd8 Qh5 Re5 Rd3 Re3 Qh3 Rd1 Rc3 e1N Rf3 Rd5 Kf1 Rg8 Qh1 Rf8 Rhh2 Rg8 R8h6 Re8 Rfh3 Nf3 Rg3 Ng1 Rf3 Rc7 Qg2 Rc8 Qh3 Re7 Qh5 Nh8 Qe8 Nf7 Qh8 Rb7
4N2Q/qbN3b1/1N2P1nr/P3r2b/1PP1q3/2B3nr/b1Q1n1N1/5K1k w - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 a5 e4 c5 f4 d5 a4 b4 f5 Kd7 e5 Qc7 Na3 Ke8 Be3 Qc6 Qg4 b3 Rd1 Qf6 e6 Qe5 dxe5 d4 Qh4 d3 Qb4 axb4 c4 Bh6 g4 Kd8 f6 Kc7 Nb1 Kc6 Nc3 Bg7 Ra1 Bf8 Ra2 bxa2 Rh3 b3 Bg2+ Kb6 Rf3 Kc6 Rf4+ Kc7 Rd4 cxd4 Bf3 Kb6 Bd1 Kc6 fxe7 Kb7 Bc2 Kc6 Bb1 a1N Ba2 bxa2 b3 Bh6 b4 Bf8 e8N h5 e7 f5 e6 d2+ Ke2 d1B+ Ke1 f4 g6 h4 g5 h3 g7 h2 g6 h1Q Nc7 f3 e8Q+ Nd7 Kf2 d3 Bb6 d2 Ba5 Bb7 Kf1 f2 Qe7 Nh6 g8N Nb3 g7 a1Q Ne4 Nc1 Qe8 Bb3 Nd6 d1B Bb6 Qe4 Qe7 Nf5 Na6 Ba2 Nc7 Ne5 Nh3 Bh5 Ndb5 Ng6 Ba5 Rh6 Bb6 Ra5 Nd6 Re5 Nc8 Qad4 a5 Ne2 Nf6 Qd7 g8Q Bg7 Qef7 Qe7 Na7+ Kd6 Bd4 Qd7 Bc3 Qe7 Ng5 Qd7 Nf3 Qe7 Kg2 f1R Qh8 Rh1 Qfe8 Qf7 Qa4 Rh3 Qc2 Qe7 Kf1 Qf7 Na6 Qc7 Ne1 Qb8 Nc6 Qa7 Ncb8 Rb5 Bd2 Ke5 Bc3+ Kf4 Ne8 Kg3 Nd7 Kh2 Ng2 Kh1 Nac7 Re5 Nb6 Nfg3+
4K1n1/B1p3b1/r1Q2n2/pBb1Pk2/1Q3PpB/1P2n1n1/rBPN4/3n3b w - - 0 1 legal: proof: h4 h5 d4 b5 Kd2 e5 f4 g5 a4 f5 axb5 d5 e4 g4 Rh3 Qd6 Rf3 gxf3 g4 fxe4 g5 e3+ Kd3 e2 Nd2 e4+ Kc3 Qe5 dxe5 e3 Ne4 Be7 Ra4 Bd6 Nf2 Bf8 Ng4 hxg4 Re4 dxe4 Kc4 Ke7 Kd5 e1B b3 f2 h5 e2 g6 e3 h6 Bg7 h7 Bb7+ Kc5 Ke6 b6 Bh1 b7 Kf5 Qd5 Nd7+ Kc6 Bb4 b8B e1N Nf3 e2 Bb2 Ndf6 Nd2 Ng2 Qf3 e1N Bb5 a5 Ba7 f1N Qc3 Bc5 Qb4 Bh6 g7 Nd3 Ba4 Ng3 Bb5 Nd5 Kd7 Nf2 Nf1 Nge3 Nd2 Nge7 g8Q Nfd1 Qb8 Bg7 Qb6 Rhb8 h8B Ng8 Qc6 Rb6 Bb8 Raa6 Ba7 Rb7 Ke8 Ndf6+ Kf7 Bgf8 Bg7 Rb8 Bh6 Bg7 Bg5 Rd8 Bh4 Rd4 Qc3 Ra4 Qb4 Nfh5 Ke8 Ra2 Kd7 Nhf6+ Kd8 Nfd5 Ke8 Ndf6+
rR6/2rprbQR/pb2N1qP/R2nQ1nP/3Pb2k/2R2Pr1/b1K5/1n6 w - - 0 1 illegal: No possible last move, all moves rejected
1rB1Qr2/pB2P2k/1bQ4p/2b2r2/N2qqnbB/3r2p1/PK3P1P/3n1B2 w - - 1 2 legal: proof: d4 e5 e4 exd4 b4 c5 bxc5 f5 e5 Ne7 Ke2 Qa5 Bf4 Qb4 Nd2 Qb3 Qe1 Qb4 Rc1 Qb6 Nb1 Nbc6 Rd1 Qb4 Bc1 Qa4 Rd3 Qa3 Qd1 Qa5 Re3 Nb8 Re4 Qd8 Ke1 Ng8 Be3 fxe4 Bc1 g5 Nh3 Nh6 Rg1 Nc6 g4 Bg7 Rg3 Nb8 Ng1 Bf8 Rf3 Ng8 Rf4 gxf4 Nc3 Bg7 Nce2 Bf8 Ng3 fxg3 Kd2 Kf7 c4 Kg6 Kc2 d5 g5 b5 e6 h6 c6 d3+ Kc3 d4+ Kb3 b4 c7 e3 c5 d2 c6 e2 Nh3 e1B Qc2+ d3 Ba3 d1R Ng1 Nd7 Qb1 Ne5 Nf3 Ne7 Bh3 Kh7 Ng1 Nd5 Kb2 b3 Ne2 Nc3 Qc2 Ng6 Bf5 d2 Bd3 Qd4 Be7 Rb8 Bc4 Bd7 c8B Rc1 c7 d1R Bb7 Rd3 c8B Nf4 Bf6 Bc5 e7 Rf8 Bca6 Bg4 g6+ Kg8 g7 Kh7 Bh4 Bd2 Bg2 Be3 Bf1 Bb6 Bab7 Re1 Ka3 b2 Qa4 b1Q Qc6 Qd1 Kb2 Qe4 Bh3 Bec5 Bf1 Nb5 Nc3 Ree3 Na4 Nc3 Ba8 Rd5 Bab7 Rdf5 Qd5 Qdd4 Qc4 Kg6 Qd5 Rd3 g8Q+ Qg7 Qgf7+ Kh7 Qe8 Qgd4 Qdc6 Nd1+
n3bk2/NP2q1rK/R6p/2R1N2P/b2bR2p/2pPr1R1/2p1rbP1/2n2R2 w - - 0 1 illegal: No possible last move, all moves rejected
3Q1q2/6k1/pPPPQb1q/N3Q1p1/R1K4b/b3b3/1n2brPr/QQn5 w - - 0 1 illegal: No proof kernel
N1Qr2r1/bPn3p1/PR1P3k/B5n1/2KNP1pB/5Pq1/r2q4/5qr1 w - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 b5 a4 h5 b3 hxg4 axb5 a4 b6 a3 Bh3 Bd7 Bf1 Ba4 bxa4 Rh5 Nf3 Rh7 Ng1 Rh8 d4 e5 d6 f6 d5 f5 e3 f4 Be2 f3 Ra2 fxe2 Rb2 axb2 Qd4 exd4 Kd2 Qg5 Kd3 Qh4 Kd2 Qd8 Kd3 Kf7 h4 Kg6 h5+ Kh6 a5 e1Q d7 c5 f3 Na6 b7 Qg3 Ne2 Nf6 Na3 b1R Nc4 Rg8 Nb6 Nc7 Kc4 d3 e4+ d2 Nd4 Nh7 a6 Rb2 Rf1 Ng5 Rf2 d1Q Bd2 Qb1 Ba5 Ra2 Rb2 Rb8 Na8 Qf1+ Kc3 c4 Rb6+ Kh7 h6 Bc5 Rb1 Kg6 h7 Ba7 h8Q Rc8 Kb4 c3 d6 c2 Rb3 c1R Rb2 Qf6 d8B Qff4 Rb3 Re1 Kc3 Rd1 Rb6 Qd2+ Kb3 Re1 Be7 Rcd8 Bf6 Qfg2 Kc4 Rg1 Be7 Rge8 Qf8 Kh6 Qf5 Rg8 Qc8 Nf7 Bh4 Ng5 Rb5 Qg2f2 Rb6 Qf1+
2N1r1Q1/1R1p1q2/B4b2/1K2rnn1/2P1rbrp/P1P3Pq/1bPN1B2/2k5 w - - 0 1 legal: proof: h4 f5 e4 fxe4 h5 a5 h6 c5 Na3 c4 Nb1 c3 bxc3 gxh6 Qf3 h5 Qe2 h4 a3 a4 Qb5 Nf6 Ra2 Ng8 Qb3 axb3 d3 bxa2 Bf4 b6 Bh6 Ba6 Bc1 Bc4 dxc4 Ra7 Be2 Ra4 Bf1 Ra8 Ke2 Kf7 f4 Kg6 g3 Kf5 Bg2 a1B Bf1 h5 Ke3 e5 Be2 h3 Bf3 h4 Kd2 e3+ Kd3 e4+ Kd4 e2 Rh2 e1R Rf2 h2 Re2 h1Q Rg2 e3 Rd2 e2 Rd1 b5 Bc6 b4 Nh3 b3 Bg2 b2 Bd5 Qf6+ Kd3 Qf7 Ng1 Na6 Nh3 Be7 Ng1 Nc7 Bd2 Qh3 Nf3 Re8 Kd4 Bf6+ Kc5 Ne6+ Kb5 Ng5 Be3 Ne7 Nbd2 Rhg8 Bb7 Rg7 Bf2 b1R+ Ka4 Rb2 Ba6 Rb5 Rb1 Re5 Ne4 Bb2 Nd6+ Kg4 Nd2 Nf5 Nc8 Re4 Nb3 Kf3 Kb4 Rh1 Ka4 e1B Kb5 Ke2 Nd2 Rf1 Ba7 Rf3 Bg1 Rfe3 Bf2 Ba1 Rb3 Kd1 Rb4 Bb2 Rb3 Nh6 f5 Kc1 Rb4 Nh7 Rb3 Rgg4 Rb4 Ng5 Rb3 Bh8 f6 Nf5 Rb4 Qe6 f7 Bf6 f8Q Qf7 Qg8 Re2 Nf3 Bd2 Rb3 Bf4 Nd2 Bg7 Ka4 R4e5 Rb7 Bf6 Kb4 R2e4 Ka4 R5e7 Kb5 R7e5+
3B4/1K1P1P1q/P2BP1b1/rkN3Rq/1N2bP1q/2rpb3/pQ2n2r/1r6 w - - 0 1 legal: proof: g4 d5 d4 f5 gxf5 e5 c4 g5 h4 gxh4 Bg5 Nd7 Bc1 Ndf6 Kd2 exd4 Ke1 d3 Bd2 d4 Bc1 Nd5 cxd5 Qf6 Nd2 Qd6 Nb1 Qd8 b4 a5 a3 a4 Ra2 b5 Rb2 Kd7 Rb3 axb3 a4 Ke8 a5 b2 e3 Be7 Be2 d2+ Kf1 Bc5 Bc4 Bd6 Bb3 Bf8 Ba4 bxa4 Kg2 Kd7 Kf3 h5 Ke4 c5 f4 a3 f6 c4 b5 c3 d6 a2 Kd5 h3 b6 h2 f7 c2 b7 h4 b8B d3 e4 h3 e5 Qh4 Qe2 d1Q Qd2 Nf6+ Kc5 Qdh5 Kb6 Ne4 Ba7 Nc3 Nf3 Ne2 Rg1 h1Q Na3 h2 Nd4 b1R+ Nb3 Be7 Bb2 c1R Rg5 Rc3 Bb8 Qe4 Qc1 h1B Nc2 Qeh7 Nb4 Be4 Ba3 Bg6 Bc7 Rb8+ Ka7 Rb5 a6 Ra5 Bd8 Bf8 Qb2 Be7 Nc2 Kc6 Nb4+ Kb5 Nc5 Bcf5 e6 Bf6 d7 Bd4 Kb7 Be3 Be7 Rh1 Bd6 Rh2 Bc7 Rc8 Bb6 Rc1 Bd8 Rb1 Ne4 Rc2 Nc5 Rc3 Nc2+ Kc4 Nb3 Bb6 Bd6 Kb5 Nb4 Be3 Nc5 Be4+
1r3Q2/1B6/2nP2NB/PPb1P1K1/1NP4R/q1kbq3/n1b1nn2/2b1r1rb w - - 0 1 illegal: No possible last move
3b1r2/2bB1P1b/Pk1q1n2/2N4n/br2n1P1/2pP3N/nq1Pb1R1/QB2K3 w - - 0 1 legal: proof: b4 a5 h4 axb4 e4 d5 a4 g5 f4 gxh4 f5 e5 Ra3 d4 Rf3 d3 cxd3 f6 Rf4 Qd7 Bb2 exf4 e5 Qd5 e6 Qd8 Be5 fxe5 g4 b5 f6 h5 e7 Kd7 a5 Kc6 e8B+ Nd7 a6 f3 f7 e4 Na3 f2+ Ke2 h3 Qa4 h4 Qd1 b3 Qc2+ Kb6 Qb2 c5 Qa2 h2 Qb2 h3 Qf6+ Bd6 Qf4 e3 Qa4 b2 Bg2 f1B+ Kd1 b1N Nf3 b4 Ng5 e2+ Ke1 b3 Bb7 b2 Qf4 c4 Nf3 Ngf6 Bc6 Rb8 Bd5 Nc3 Be6 b1Q+ Kf2 e1B+ Ke3 Be2 Qe4 Bc7 Ne5 Bh4 Qd5 Qb2 Qa8 Nh5 Nb1 Rf8 Nf3 Ndf6 Rg1 h1B B8d7 h2 Ng5 Be4 Nh3 h1N Rg2 Na2 Nc3 Bh7 Ne4 c3 Nc5 N1g3 Kf2 Bg5 Qd5 Nge4+ Ke1 Bb7 Qf5 Bc6 Qf1 Ba4 Bb3 Qe7 Bc2 Qd6 Bb1 Ka5 Qf5 Rb4 Qd5 Kb6 Qb3 Ng8 Qd1 Bgd8 Qc1 Ngf6 Qd1 Qb3 Qc1 Qc2 Qb2 Qb3 Qa1 Qb2
bnrb3B/1P2k2P/qNQ1prP1/nq2Nb2/2P2KP1/3n1Br1/8/2n2b1R w - - 0 1 legal: proof: a4 b5 b4 bxa4 e4 c5 d4 cxd4 g4 g5 f3 f5 Ra3 fxe4 f4 h5 fxg5 h4 Rg3 hxg3 Ke2 a5 c4 d5 h4 g2 h5 a3 g6 a4 h6 d3+ Ke3 d2 h7 a2 b5 a1Q b6 a3 Rh5 d4+ Kf4 e3 Rh2 a2 Qa4+ Qd7 Nc3 d1B Qb5 e2 Qg5 e1N Nce2 d3 Ng3 d2 Rh6 Be2 Ne4 d1B Nc3 Nd3+ Ke4 Qb5 Qd2 Ra6 Qe1 Bf5+ Ke3 Kd8 Nf3 g1R Nd5 Rg3 Bh3 Bf1 Rh4 Bh6+ Nf4 Bg5 Qa5 Qf6 Qb4 a1N Ba3 Nb3 Bb2 Nbc1 Bg2 Bc2 Rh6 Be4 Qa3 Ba8 b7 Rc6 Ba1 Rc8 Be5 Qfa6 Qa4 e6 Rh1 Ne7 Bg7 Rf8 Bh8 Bf6 Nd5 Nec6 Nb6 Ke7 Ke4 Na5 Ne5 Bg5 Bf3 Rf6 Rh3 Qb4 Qc6 Qbb5 Rh1 Bf4 Nf7 Bc7 Ne5 Bd8 Ke3 Bb1 Ke4 Nf2+ Ke3 Bf5 Kf4 Nfd3+
q1N1bK2/P1n1q2r/2PBRnq1/1qp2R2/PpkP1Qb1/3b2r1/2B2P2/6q1 w - - 0 1 illegal: No proof kernel
2b2Rqr/P2P2P1/4b3/5nr1/2pnQNk1/B1b5/b2PPbpK/1Nq2qB1 w - - 0 1 illegal: No proof kernel
Q5R1/N3kPKp/1Nr3r1/rnnPP1n1/1PbpB3/5b1q/3P4/r2Rnn2 w - - 0 1 illegal: No extended proof kernel
6n1/2BB2RP/k2P4/1b1bq3/p3brPb/NPPq3q/2Q2p1b/Kn3R1n w - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 f5 d5 f6 d3 Nc3 gxf6 Nb1 f5 Qe2 f4 Qg4 Bf5 Qd1 Bc8 g4 h5 Nc3 a5 Be3 d4 Nce2 h4 Ng3 hxg3 Bd2 Rh5 Bc1 Rd5 exd5 Ra6 Ra2 Rh6 Ra1 Rh8 Kd2 Kd7 h4 Kc7 b3 Kb7 c3 e5 h5 f5 h6 f3 h7 f2 Ba3 f4 Kc1 f3 Kb2 d2 Rh2 d3 Ra2 e4 Rg2 e3 Ra1 e2 Qe1 d1B Rh2 d2 Bb4 g2 Ra3 Ka6 Ra2 a3+ Kb1 a4 Bd6 Bf5+ Rc2 a2+ Kb2 Nd7 Rh4 Ne5 Rc1 Be7 Rb1 Nc4+ Ka1 Be4 Rh6 Bh4 Re6 Na3 Nh3 g1B Bg2 f1B Rg6 Bh2 Rb2 Nb1 Qg3 e1Q Qf2 Bb5 Ng5 Bde2 Rc2 d1N Rg7 Bec4 Nf7 Qd7 Qe2 Nf2 Ne5 Nh1 Rc1 f2 Bc7 Qf1 Bf3 Qh3 Qc2 Qf5 d6 Bcd5 Rf1 Qg5 Nc4 Qe5 Bg2 Qd3 Na3 Qh3 Kb2 a1Q+ Kc1 Ne7 Bf3 Rf8 Be2 Ng8 Bc4 Ba8 Be6 Rf4 Bd7 Qa2 Qd1 Qe2 Qc2 Qed3 Kb2 Bac6 Ka1 Bcd5
4nK1Q/Pq1np3/4k1P1/q1bnP1n1/p3NPR1/N7/q2BPq2/2nb1Rr1 w - - 0 1 illegal: No proof kernel
7k/P3p3/qn3qB1/1RB3b1/rRp1Pb1q/1pKP4/rPbPNQ1q/6r1 w - - 0 1 illegal: No proof kernel forced: bxDB
q3n2k/N6P/1nr4q/3RK3/P3ppRQ/2PPN1q1/1b1P1p1p/2Bn1rb1 w - - 0 1 illegal: No proof kernel
2K5/2P3rR/Qr1r1p2/N1kr1P1p/1p3P2/r1bpnnqB/2r2PP1/2B1N3 w - - 0 1 illegal: Other
1N2qn2/p1p1QP2/P1bpKP2/1Rp3q1/5P1n/1B5r/q3bP1p/k1b2R1B w - - 0 1 illegal: Other
7n/1rQKn2b/3bn1P1/rPrR1p2/1r2PP1q/R5PB/Nk2N2b/1rq1q3 w - - 0 1 illegal: Other
qnn5/Pn3rk1/Ppr5/NP1q3B/2QPP1b1/b2Knr1n/4n3/BNR1b3 w - - 0 1 illegal: Other
r3rb1b/r1P1B1nb/4k2b/2brNrQ1/2P1p1nP/3RP2R/5qP1/K2Nr3 w - - 0 1 illegal: Other
2n3R1/2n1NK1n/r1r1pP2/1PB1n2q/P2PP3/rq3R1b/Q3Bq1b/bbk5 w - - 0 1 illegal: No proof kernel
2bRnR1N/PP3p2/1Kn4q/3Bq1Pq/4bkP1/5P2/bB1rnr1b/3q2Qn w - - 0 1 illegal: Other
1q1k2nb/2Rbr1N1/3Pn1q1/P1BQNpn1/6n1/2P3Kn/b3rPpP/1R4q1 w - - 0 1 legal: proof: e4 h5 b4 d5 g4 dxe4 c3 hxg4 b5 c5 b6 c4 Bd3 axb6 Bc2 b5 Bb3 cxb3 Qe2 b4 Qf3 Rh6 Qd1 Rh8 a4 b5 d4 e5 a5 g5 d5 b2 d6 e3 Bd2 e2 Qb3 e4 Bc1 g3 Be3 g2 Ra4 g4 Nf3 g1N Nh4 g3 Nf5 g2 Bc1 Bd7 Nh6 Bg7 Qa3 b3 Bd2 b4 Bf4 Rh7 Qa2 Bh8 Qa3 Na6 Nd2 b1Q+ Qc1 b2 Nf1 b3 Bg5 Nc7 Bh4 Nh3 Ra3 Qb8 Rg1 Ne6 Bg3 Kd8 Kd2 e1N Ke3 Nc2+ Ke2 e3 Kf3 e2 Ra4 Ne3 Nf5 Ng4 Be5 e1N+ Kg3 Nf3 Qd2 Nfg5 Ng7 Qg6 Qd5 b1B Ne3 f5 Bd4 b2 Rc4 Ba2 Rc7 b1Q Bc5 Qc1 Rh1 Qg1 Nc4 Ra7 Ne5 Rb7 Nh5 Re7 Ng7 Rb1 Nh5 Rb2 Ng7 Qa1 Rb1 Re2 Rb6 Qe1 Rb1 Qg1
n1bq1B2/p2pb1N1/PP3b1b/PPrQRrq1/3K3b/n1N5/1qB2kP1/1q6 w - - 0 1 illegal: Other
2b1nrnb/1k1r2pN/n1Rq1NQ1/1b4P1/1P1r1BpP/5BP1/2bn1P2/4K1q1 w - - 1 2 illegal: Other
RKrqn2B/1P1q2PN/rnb2Q1N/1b1pPq2/R6q/1p4P1/2rP3b/1k1r4 w - - 0 1 illegal: Other
6q1/2rbb2N/1bbQ2B1/1R1P1Pr1/1p1p1KpP/3P4/NPn1b1Bn/knr5 w - - 0 2 illegal: Other
1N2nN2/1b2b3/p1n4p/P1rp2BR/2k2P1P/nb3n1P/2rBKPq1/2rQ2n1 w - - 0 2 illegal: Other
Bk1q1n2/bq3RN1/5P2/ppp1K1b1/Q5q1/P1R3P1/2P2Pb1/nN1brb1r w - - 1 2 illegal: Other
q2Q4/1N3r2/ppqb2b1/1pqnPPRR/P7/2n1NP2/3B1P1r/k1nbK2n w - - 0 1 illegal: Other
1nk2nr1/3rnPB1/b2pr1R1/1K2p1Bq/pRnP3q/3qb3/PP1NP3/1Q6 w - - 2 3 legal: proof: g4 b5 c4 bxc4 Bg2 f5 Be4 fxg4 Na3 c3 Kf1 h5 Bd5 g3 Be6 c2 Bg4 hxg4 Nb1 cxb1Q Ke1 Ba6 Qb3 Bb7 Qd1 Bc8 h4 e5 f4 a5 d4 g5 Kd2 c5 Kc3 c4 f5 d6 f6 Kd7 h5 a4 Kb4 g2 h6 c3 h7 c2 f7 g3 Rh3 g4 Be3 c1N Nf3 g1N Rh4 g2 Nd2 g3 Ne4 Nf3 Qe1 g1Q Rh1 g2 Rh5 Bh6 Ng5 Nd2 Rh3 Ne7 Qd1 Ncb3 Bf2 Nc4 Re3 Ra7 Qc2 Rg8 h8B Nc5 Rc3 Qh1 Qg6 g1R Qe4 Ne6 Nf3 Nf8 Be3 Qh5 Nd2 Qd3 Kb5 Bb7 Bg5 Kc8 Rb3 Rf1 Rb1 Rf6 Rb4 Rfg6 Bg7 Re6 Bh4 Be3 Rg1 Bd5 Qh7 Rd7 Rg6 Bb7 Bg5 Nf5 B5h6 Qdh4 Bg5 Ne7 Rf6 Qb3 Qb1 Qd3 Rg6 Ba6+
2nb3R/2qQb1Pp/kPR4P/1pr1PBB1/3qK3/7q/nPp3r1/qb2Nb2 w - - 0 2 illegal: Other
1n2NQ2/P1rq1PKP/1rkb1P2/B5pN/4qbP1/1B1p2p1/4bb2/n2rr1R1 w - - 0 1 illegal: Other
1K3nk1/1P1Pb1Bn/Q1Nq4/q2n1R1P/b3p2n/2qpPrpq/3N1P2/r6B w - - 0 1 illegal: No proof kernel
n1kr4/qp5N/1nPb4/4RN2/PP3K1r/Qbqbp2P/4Pp2/B1Rn1b1n w - - 0 2 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 g5 d5 gxf4 d6 a4 Bg2 cxd6 Be4 d5 Bf3 d4 Bd5 Rh6 Bc4 Rh8 Bb3 axb3 Kf2 e5 a4 d5 c4 Kd7 h3 f5 c5 f3 Kg3 e4 Qc2 f4+ Kf2 d3 Ba3 b2 Nc3 b1B Bc1 d4 Qb2 d2 Na2 d1N+ Ke1 f2+ Kd2 f1B Qc2 g3 Rh2 d3 Nc3 f3 Rf2 Qf6 Bb2 Bd6 Ra3 Ne7 Rh2 g2 Qc1 Rh4 Ra2 Nd5 Nb5 Nb6 Ra1 Nf2 Ke3 d2 Nc3 Bd3 Nd5 Na6 Ne7 Qc3 Nf5 Nc7 c6+ Kd8 Rh1 Be6 Ra3 Kc8 Ba1 Rb8 Rb3 Nca8 Qa3 Bd5 Rb2 Bb3 Rc2 Qg7 Rc5 Qc3 Rh2 Nh1 Re5 f2 Nf3 g1Q Ng5 Qg4 Rg2 Qh5 Rg4 d1N+ Kf4 e3 Nh7 Qe8 Kf3 Qh8 Rf4 Qc5 Rc4 Qa5 Rc1 Qa7 Rd5 Qc3 Re5 Kc7 Bb2 Rd8 Ba1 Rh5 Kg4 Kc8 Kf4 Rh4+
1QN2rRr/3PPp2/1q2kN2/4p1R1/2n3P1/Bp1Pb1qp/1P2b1n1/r2b1Kn1 w - - 0 1 illegal: Other
3R1Rn1/1P1rpP2/q1pP2Kn/kbPpr3/4P1n1/Nqb2p1Q/1B4B1/3rb3 w - - 0 2 illegal: No proof kernel
B4B2/qpK3bb/pPr3nN/p1NQn3/p3P1P1/rR6/2bPP2n/n5bk w - - 0 1 illegal: Other
n1RR2r1/k4B2/pn1BnPb1/1P1N1pq1/4b2n/2K2pP1/1P2PNnn/8 w - - 0 1 illegal: No proof kernel
5k1B/1q3P1b/r2P3K/1Rq3b1/P1B1pP2/1nN3RN/pPrp4/r1n1rn2 w - - 0 1 illegal: No proof kernel
b1B3b1/2b1q1q1/q3nPPN/B3r3/pr1nk3/Pr2P1KR/nN5P/2nR3b w - - 0 1 illegal: No proof kernel
4rnN1/2pn1q1N/1BPRb3/1BPr2Pb/p1qPK2b/RP1p3q/2bk2n1/8 w - - 0 1 illegal: Other
1R3N2/1pb3R1/PPb1B2K/1Pnq2b1/2PprBpp/P6p/1r2Np2/3k2qn w - - 0 1 illegal: Other
3n1nB1/1NPP1qqP/2n1nqq1/2RP1qn1/3rBk2/B7/2nr3P/3K2Q1 w - - 0 1 illegal: No possible last move, all moves rejected
2rbbq2/kr3BN1/3P2q1/r5RR/2P1Kn1r/2PnR2b/2Pr2QP/qn6 w - - 0 1 illegal: Other
R1B5/P2nP1r1/1Q1np1p1/P1K3P1/6P1/N1B2Bq1/1b2r1bk/1bnqn2n w - - 0 1 illegal: Other
n4Q1r/1N4Bq/2K4P/2r1R2P/1bP3RP/1prpPrp1/2q1b1R1/rk3n2 w - - 0 1 illegal: Other
7b/2qq1ppP/1K1R1n1r/nRRPp3/pB3Pk1/2N1P3/2P5/Qn2q1nb w - - 0 2 illegal: Other
r3K1kB/1q2P3/1rQ1p3/N7/n1rPP2n/NrpbR1Pp/N1P1p2p/6r1 w - - 1 2 legal: proof: e4 d5 h4 a5 b4 axb4 a4 g5 Ra2 gxh4 Rb2 d4 Bc4 Bg7 Rb3 Bf8 Re3 dxe3 Ba2 b3 f4 bxa2 f5 e6 f6 Be7 fxe7 Kd7 Ke2 Ke8 Kf3 a1R Kf4 c5 Kg5 h5 d4 b5 a5 f5 Kg6 b4 a6 c4 g3 c3 a7 h3 Nf3 h2 Qg1 f4 Qg2 b3 Rg1 b2 Ng5 h4 Qe2 h3 Nd2 b1R Nf7 f3 Qe1 f2 Nb3 f1R Ne5 Ra6 Nd3 Nd7 Qe2 Nh6 Na5 Nf5 Nb4 Nb6 Qc4 Rb3 Qc6+ Qd7 Na2 Na4 Rh1 Rd1 Re1 Rab6 Ba3 Bb7 Bd6 Ba6 Be5 Bd3 Bf6 Rh5 Bh8 Nh4+ Kg7 Rc5 Kg8 Rab8 a8N Rc4 Re2 Rg1 Kg7 R6b5 Nb6 Ra8 Kf6 Rcb4 Nbc4 Rb6 Na3 Rc4 Rf2 e2 Rf3 Rc5 Re3 Rc4 Kg5 Kf7 Kh5 R6b4 Kg5 Kg8 Kf6 Kh7 Kf7 Qb7 Rf3 Rb6 Re3 Raa6 Ke8 Kg8 Qd7 Ra7 Qc6 Ra8+
rrr1Nr1R/1B1P4/3P1n1q/kP5P/3Bp1p1/p1pPQn2/1Q1b4/4n2K w - - 0 1 legal: proof: e4 d5 exd5 h5 b4 f5 g4 hxg4 Nc3 b5 Ne4 fxe4 a4 Bb7 Ra3 Ba6 d4 bxa4 Rb3 Bd3 cxd3 axb3 h4 Kd7 f4 a5 Kf2 c5 Kg2 Kc7 d6+ Kb6 d5 e5 f5 g5 d7 c4 f6 c3 f7 b2 h5 b1R d6 g3 Nh3 e3 Qa4 e4 Nf2 e2 Ng4 Qf6 Qa3 a4 Qb2 a3 Rg1 e1N+ Kh1 Qh6 Bh3 Nc6 Nf6 Ne5 Be6 N5f3 Ne8 Nf6 Bd5 g4 Be3+ Kb5 Bd4 Be7 Rf1 Rf8 Ng7 Rfc8 f8Q Bd8 Ne8 Bb6 Be5 Be3 Bb7 Bd2 Qe7 Ng5 Bd4 g2+ Kh2 g1R Rf3 Rg3 Kh1 Ka4 Qe5 Rg2 Qg3 Rf2 Rf5 Rf4 Qe3 Ngf3 Rc5 Ng8 Rb5 Rf8 Rg5 Nf6 b5 Ka5 Rg8 Rcb8 Qa2 Rb4 Qb2 Rc4 Rh8 Rcc8
b1K2Qb1/3P1N1b/1n1b1r2/P3nP1n/4PR1q/2NP1Qrr/1B1bp2k/2n5 w - - 0 1 legal: proof: c4 a5 b4 axb4 h4 g5 Qc2 gxh4 Qa4 e5 Qd1 d5 cxd5 e4 a4 f5 d3 f4 Kd2 e3+ Kc2 Bh6 Ra2 Bg7 Kb3 Bf8 Rd2 exd2 e3 f3 Be2 fxe2 Kb2 Qf6+ Kc2 Qd8 Kb3 Kd7 Kc4 Kd6 Kb5 Ke5 g4 c5 f3 h5 d6 h3 g5 h2 a5 b3 g6 b2 g7 h4 Qc2 d1B Qd2 h3 Nc3 b1R+ Bb2 c4 Qc2 Bf5 d7 Nf6 g8Q Bh7 Na2+ c3 Nc1 Bd6 Qg6 Nd5 Qg8 Nc6 Qf8 Ra6 Qa4 Nb6 Na2 Bb3 Bc1 c2 Qh6 Qh4 Qf8 Bbg8+ Qb3 Ra1 Bd2 c1B Bb4 Bd2 Qe7+ Kf5 f4 Kg4 f5 Kg3 Nc1 Ne5 Qb1 Ra4 Bc5 Rg4 Bd4 Kg2 Nf3 Rg3 Rf1 h1N Re1 h2 Qb3 Na8 Qd5 Rg5 Qef7 Be7 Nb3 Qh5 Qg7 Ng3 Ba7 h1B Nc1 Rf6 Qc4 Bd6 Nb3 Bg6 Rf1 b6 Ka6 b5 Kb7 b4 Nc1 b3 Qgf7 b2 Qg4 b1N Bd4 Nc3 Na2 Nb6 Qf8 Rh6 Qe4 B6h7 Qd5 Rg4 Ng5+ Kh2 Nf7 Qg5 Qc6 Rh3 Rf4 Nh5 Qd5 Rgg3 Qe4 Nb5 Bb2 Nd4 Nc3 Nb3 Qc6 Nc1 Qe4 Na4 Kc8 Qh4 Qa8 Bd5 Qb7 Bc4 Qf3 Bd5 e4 Bc6 Qh6 Ba8 Qf8 Nb6+
n1qb1n1n/Q1rp1P1b/1Qq1R2N/RrPP4/pP6/1bPk3r/rB6/3K4 w - - 0 1 illegal: Other
b3b2q/K4QP1/3B1bP1/QR2n1N1/Ppp4R/1P2n2r/1q2n1Pk/bb1b4 w - - 0 1 illegal: Other
5Q1Q/P1r2P1r/1R1KPN2/2p1q1rn/1b2b1q1/p2B3p/1PR1r1P1/4nk1r w - - 0 1 illegal: No proof kernel
1q2b3/k2P1N1B/Pp1R4/3P1Qnb/P3Q3/P3nbrp/1p1KNr1n/2bn4 w - - 0 1 illegal: Other
1b2Q3/q1kP2N1/1pP5/1P2p1bn/1P4KB/r1r2P2/1p1r1b1Q/1qb1RB1b w - - 0 1 legal: proof: b4 d5 a4 c5 e4 g5 h4 gxh4 Ra3 f5 Rb3 fxe4 c3 Nc6 Na3 Nd4 Nb1 Nb5 axb5 c4 Na3 cxb3 c4 Nh6 c5 Ng8 Nc4 dxc4 Ke2 Kd7 g4 a5 d4 h5 d5 c3 d6 e3 Kf3 a4 g5 c2 g6 a3 g7 e2 Qd5 e1B Ne2 b6 Qe4 a2 Qe3 a1B Qc3 h3 Qd2 h4 Kg4 h2 Bh3 Be5 Bg2 b2 Qd1 h3 Be4 Bb7 Bg6 Qc7 Qd2 Ra3 Rg1 h1R Qd3 h2 Rg2 Rh3 Qd2 Rhc3 Nf4 e6 Be4 Be7 Nh5 Bg5 Rg1 Ba8 Bd5 Qa7 Bc4 Bg3 Bf1 Nf6+ Kh3 Kd8 d7 Kc7 g8Q Bd5 Ng7 Nh5 c6 Bd6+ Kg4 e5 Rg3 Rg1 Qf4 h1Q Qe8 Rg2 Be3 Rh2 Rg1 c1B Bd2 Bg2 f3 Bf2 Be1 Bd4 Bd3 Bf2 Rf1 Qg1 Qg3 Bh1 Qg2 Bd4 Bh4 Bf2 Re1 Qf1 Bc4 Qd3 Qg3 Qb1 Qh3 Bfe3 Bf1 Rd2 Qh2 Bf2 Qg6 Kd8 Qf7 Bb8 Qe8+ Kc7
Nk3Kn1/5Rn1/Pp2pnPr/2P5/2RpQ2Q/1P1bPBq1/r5r1/r2nn3 w - - 1 2 legal: proof: g4 f5 d4 fxg4 b3 a5 d5 a4 d6 a3 Bb2 axb2 Nd2 cxd6 Ndf3 d5 Nd2 d4 h4 g5 a4 g3 c3 g4 Nc4 Bh6 Rc1 Bg5 hxg5 b1R Ne3 Ra1 Nc2 Ra3 Na1 Rxa1 Kd2 h5 Kd3 d5 f4 Kd7 c4 Kc7 c5 b6 f5 g2 f6 h4 f7 e6 f8Q h3 g6 h2 e3 g3 a5 Qg5 Qe8 Ba6+ Qb5 Nd7 Be2 Kb8 Nh3 g1N Qc2 g2 Nf4 Ndf6 Bf3 Qg3 Qbc4 Rh6 Qf2 Nh3 Rc2 Ng5 Rf1 h1N Rc3 g1R Qh2 Bb5 Qh4 Rg2 Rc2 Be8 Qa4 Bb5+ Rc4 Qh2 Qb4 Ng3 Qa4 Ngh5 a6 Ng7 Ne2 Ra7 Nc3 Qg3 Qb4 Rd7 Qe4 Bc6 Nb5 Rd6 Nc7 Bb5 Rf2 Rd8 Na8 Rf8 Kd2 d3 Kc3 d2 Kd4 d1N Qe1 Rd8 Qh1 Rf8 Qhh4 Rf7 Ra4 Bd3 Rc4 Qg4 Ke5 d4 Kd6 Qh3 Be2 Nf3 Rf1 Ne1 Bf3 Qg4 Be2 Nh7 Rf2 Rf5 Kd7 Qg3 Bg4 Re5 Rf7 Rf5 Bh5 Rf1 Bf3 Rff2 Kd8 Rfa2 Kd7 Nh5 Ke8 N7f6+ Kf8 Ng7
7k/pRpp2n1/1bP5/K3r3/Qp1PQPpb/1qn2bP1/PB1N3B/3n3b w - - 2 4 legal: proof: d4 h5 b4 b5 e4 f5 e5 h4 g3 h3 Bd3 Kf7 Na3 e6 Nc4 Qg5 Ne3 Qe7 Ng2 hxg2 Be4 Ba6 Rb1 Bc8 Rb3 fxe4 Rd3 exd3 Qg4 Rh6 Qd1 Rf6 exf6 Kg6 f7 e5 Bg5 e4 Bc1 Kf6 Bf4 Qxb4+ Qd2 Be7 Ne2 Nh6 Ng1 Na6 Kd1 Bb7 Be3 Rh8 Bf4 Bc8 Ke1 Ng8 f8Q+ Ke6 Bh6 Nb8 Qd8 Kf7 Be3 Qd6 Qd1 Bf8 Bc1 Qe7 Kd2 g5 Kc3 Kg7 h4 g4 f4 d2 h5 e3 Rh2 e2 Qe8 e1B Kb3 Na6 c4 Qb4+ Kc2 Nc5 Nh3 g1N Qe4 Ne7 Ng5 Nd5 Nf3 Ne6 c5 Bb7 h6+ Kg8 Rf2 Nh3 h7+ Kg7 Kd3 Nc3 Qa4 d1B Rb2 Qb3 Be3 Be7 Nd2 Bh4 Bg1 Bf3 Bh2 Re8 h8B+ Kg8 Bf6 Ng7 Bg5 Re5 Be7 Kh8 Bd6 Bd5 c6 Bh1 Ba3 Nf2+ Ke3 Nfd1+ Kd3 Bg2 Rb1 Bf3 Bb2 Bh1 Qf5 Bdf3 Qe4 Qg8 Kc2 Qb8 Kb3 Qg8+ Kb4 Qc4+ Ka5 Qb3 Nc4 Bd2 Ba1 Bc1 Nd2 Ba3 Bb2 Bc5 Ba3 Qf7 Rb4 Qb3 Bb2 Bce7 Rc4 b4+ Rc5 Bf8 Rb5 Bc5 Rb7 Bb6+
1Qqb1K1b/r1p3np/N1Pr1P1N/3Q2BP/rq2n3/bP4b1/P5k1/1Rbb4 w - - 0 1 legal: proof: g4 b5 e4 f5 c4 fxg4 e5 a5 b3 a4 e6 a3 c5 dxe6 Bc4 bxc4 Nc3 e5 Rb1 e4 Rb2 axb2 Nb1 Bb7 Ne2 Ba6 Ng1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 e5+ Kh5 g5 f4 e3 h4 Ke4 d4 e2 d5 e1Q f5 c3 d6 c2 d7 g3 c6 g4 Qd6 g2 Be3 g3 Qh6 Ra4 Ne2 Kf3 Nc1 g1B Ba7 g2 Nd3 e4 Bf2 e3 Nf4 e2 Bb6 Bf2 Ba7 g1B Ng6 Bg3 Qe3+ Kg2 Qc1 Na6 Qd2 Bd4 Qd1 Ba3 Bb6 Nf6+ Kh6 Qb4 Kg7 Nc5 Nc3 b1R h5 Ne6+ Kf7 Bh4 Ne4 e1B Ne5 Beg3 Nc5 Ne4 Ng4 Rc1 Qd3 Rd1 Na6 Rg8 Bc5 Bh8 Nh6 Ng7 Be3 Re8 Qc4 Rd6 Rb1 c1B Qd5 Be7 f6 Rg8 Nb8 Ba6 Bg5 Be2 Na6 Bd1 Ng4 Qa8 Nh6 Rb8 d8Q Rb7 Qc8 Bd8 Kf8 Ra7 Qb7 Qc8 Qbb5 Be5 Qb8 Bg3
6bK/bpq1k3/4n2p/R3BQ2/1P1Pp2n/1Q4PP/Prn2rN1/bBbbr3 w - - 0 1 legal: proof: e4 a5 c4 f5 f4 d5 b4 dxc4 Nc3 a4 Nd5 fxe4 f5 g5 Nf4 gxf4 Rb1 Bh6 Rb2 Bf8 Rb3 axb3 Kf2 e5 d4 c5 f6 h6 g3 f3 Ke3 c3 f7+ Ke7 h3 b2 Qe1 b1R Rh2 f2 Bb5 f1B Bd7 c4 Bg4 c2 Rd2 c3 Bf5 Be2 Be6 Nd7 Qf1 Qc7 Nf3 Bd1 Bg4 Rb2 Qe2 Nc5 Rd3 Be6 Qe1 Re8 Bd2 c1B Qg1 c2 Ne1 Rh7 Kf2 e3+ Kg2 e2 Kf3 Bc4 Qe3 Ne6 Ng2 e1N+ Ke4 Rg7 Kf5 Rg5+ Ke4 Rf5 Ra3 Rf2 Bf5 Bb3 Qc3 Bc4 Be3 Bd2 Ra7 c1B Ra5 Nc2 Qb3 Bc3 Bd2 Kd6 Bf4 Ne7 Bh7 Ng6 Kf5 Nh4+ Kf6 Kd7 Bd3 Bc5 f8Q Ba7 Kf7 Re7+ Kg8 Re8 Kh7 Bd5 Qf5 Ke7 Rc5 e4 Ra5 Rf8 Be5 Re2 Qg4 Rff2 Qf5 Re1 Kg8 Nf4+ Kh8 Bg8 Ba6 Ne6 Bd3 Ne3 Bb1 Nc2 Qd5 Rb3 Qc4 Ba1 Qc3 Rb2 Qd3 Nd8 Qb3 Ne6
K1bQqb1b/4Pp1p/1rn1P2Q/1b2nk2/4R3/1p1brP2/RN1P3P/1nB2b2 w - - 0 1 illegal: Other
3r3N/4BPb1/1n1PP2r/N1q3n1/rq1kp1N1/3p1PP1/1q2R1b1/q1B1K3 w - - 0 1 legal: proof: b4 c5 a4 f5 e3 g5 b5 f4 Ke2 f3+ gxf3 g4 Ke1 g3 Qe2 b6 a5 bxa5 hxg3 a4 d4 d5 e4 e6 Qd2 Qb6 Qb4 cxb4 Bd3 Qd6 e5 Qb6 Be4 Qd8 Ra3 Nc6 Rd3 dxe4 d5 Nb8 d6 Nh6 Rd4 Ng8 Rd5 exd5 c4 Kf7 f4 Ke6 c5 h5 b6 a5 c6 h4 f3 a3 c7 b3 b7 a4 Kf1 b2 Be3 h3 Ne2 h2 Rg1 h1R Kf2 d4 f5+ Kd5 f6 a2 f7 a1Q Rf1 d3 Ke1 a3 Bc1 a2 Nd2 b1Q Nb3 Bg7 Ng1 Nf6 Rf2 Nh7 Na5 Qab2 Re2 Rh6 Nh3 a1Q Nf2 Bh3 c8N Bg2 e6 Kd4 Ng4 Qc7 Ne7 Ng5 Ng6 Rd8 Nh8 Nd7 b8B Qc5 Bc7 Ra7 Re3 Nb6 Re2 Rf8 Bd8 Qbb4+ Kd1 Qb1b2 Be7 Re8 Rf2 Rd8 Re2 Q4b3+ Ke1 Raa8 Nc4 Ra4 Na5 Qbb4+
2rB1k1K/P4P1Q/qR1p2bb/2P1R1qP/1pbn4/pB5r/p2P4/2n4B w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 Qb6 b5 Qa5 Qg4 Qd8 Qb4 cxb4 a3 Qb6 Be2 a5 Bf1 Qa6 bxa6 bxa3 g4 g5 f4 h6 f6 Bg7 f5 Bf8 Nc3 Kd8 Nh3 Ke8 Nf4 gxf4 Ne4 h5 g5 Rh6 Nf2 Rh8 Ng4 hxg4 Ke2 b5 Kd3 e5 Ke4 f3 c4 a4 h4 g3 c5 b4 g6 f2 g7 d6 a7 g2 Bb5+ Nc6 Ba6 f1B Ra2 g1Q Bb7 Bc4 Bb2 Nh6 g8B Qg5 Re1 Ng4 f7+ Ke7 Raa1 Nd4 Bd5 Bh6 f8Q+ Kd7 Qg7+ Ke8 Qg6+ Kf8 f6 Bb7 Qf5 Rc8 Qh7 Bc6 Bf7 Be8 Bfe6 Bh5 f7 Bg6+ Bf5 Bb5 Bb3 Nf2+ Kd5 Nd3 Be4 Nc1 Bh1 Ne6 Bd4 e4+ Be5 e3 h5 e2 Ra2 Nd4 Ra1 Rg8 Ra2 Nf5 Bf6 Bc4+ Ke4 Rg7 Bd8 Rg8 Rf1 Nd4+ Rf5 Bb5 Kd5 e1Q Re5 Bf1 Ra1 Qe2 Ra2 Qa6 Ra1 Nc2 Ke6 Bc4+ Bd5 Qe3 Kf6 Nd4 Bh1 Qg3 Re7 Qg2 Rb7 a2 Rb6 a3 Rb1 Nce2 Re1 Nc1 Re5 Bc2 Ba4 Rg3 Bb3 Rh3 Qd3 Qc6 Kg6 Qd5 Kh7 Qg2 Kh8 Qg5 Qh7 Bg6
1N4qr/k1K5/b1Pn4/rP5q/RrP2bNP/PR1Nnq2/4rQq1/1n1n4 w - - 0 1 legal: proof: f4 b5 g4 c5 d4 e5 dxc5 exf4 g5 b4 g6 hxg6 Nf3 g5 Ng1 g4 e3 a6 Bc4 a5 a3 Rh4 Ba2 Rh8 Bd2 b3 Bc3 bxa2 b4 Qe7 b5 Qd8 Bb4 axb4 Ke2 g5 Kd3 f5 Kd4 d5 Ke5 Kd7 c4 Kc7 h4 Kb7 c6+ Ka7 e4 d4 Qe1 g3 Qd2 f3 Qc2 f2 Qd2 f1Q Qh2 b3 Qd2 b2 Qe3 f4 Rh2 g2 Qd2 d3 Qe2 f3 Rh1 d2 Qd3 d1N Nh3 g1R Qc3 g4 Nf2 g3 Nd3 g2 Nf2 Bd6+ Kd5 Nh6 e5 Ba6 e6 Qe8 e7 Nf7 Qc1 Bf4 Rh3 Nd7 Qc2 Nde5 Ke6 Ng4 Nc3 b1N Na4 Nd6 Nb2 Qh5 Kd7 Nge3 Ng4 f2 e8N Qe2 Qd2 f1Q Kc7 Qff3 Nd3 Re1 Nef6 g1Q Nd7 Qeg2 Qf2 Re2 Nb8 Nbc3 Rb1 a1R Rb2 Nb1 Rb4 Raa2 Nh6 Rab2 Ra4 Qg8 Ng4 Rb4 Rh2 Qgg2 Rh1 Nb2 Rc1 Nd1 Rc3 Qgh3 Rb3 Qhg3 Nf6 Qgg2 Ng4 Qgd5 Nde5 Qg8 Kd7 Kb6 Ng6 Bb7 N6e5 Ra5 Nd3 Ka7 Kc7 Ba6
1RNK1b2/rP3P2/pn1R4/3brr1N/P2B4/1P1Pn2n/1qkbq3/q1b4N w - - 0 1 legal: proof: e4 b5 g4 f5 c4 fxg4 cxb5 c5 Qf3 d5 Qd1 dxe4 b3 h5 Qe2 c4 Qd3 c3 Qc4 h4 Bg2 h3 Qa4 hxg2 Qa3 Na6 Qb2 cxb2 Kd1 Nb8 Ke2 Qa5 Ke1 Qd8 a4 Kd7 Ke2 Kd6 Ke3 Kd5 Kf4 Kd4 Kg5 Kd3 f4 e5+ Kg6 e3 Kf7 g5 h4 g3 b6 e4 f5 e2 b7 e1R h5 g4 h6 e3 h7 e2 f6 a6 Nf3 g1N Na3 b1Q Nb5 g2 Bb2 g3 Nfd4 Nh3 Ba3 g1Q Nf5 g2 Ng7 Ne7 Bb4 Qb2 Na7 Nd5 Bc5 Kc2 Rd1 Nd7 Nf5 N7b6 Bd4 Ne3 Ng3 Qf1 Rh2 g1B Nh1 Rg8 h8N Rg5 Rg2 Rf5 Rg8 Bh2 Ng6 Bf4 Rh8 Qd6 Ke8 Qda3 f7 Qaa1 Rg8 Be6+ Nc8 Bd5 Kd8 B4h6 Nf4 Ra7 d3 Nec4 Nh5 Bc1 Rh8 Ne3 Rh6 Qf2 Rd6 Rg1 Rf1 Rgg5 Rg1 e1B Rg4 Qe2 Re4 Bc3 Re8 B3d2 Ne7 Ng4 Kc7 Rf4 Rb8 Re5 Nc8 Rff5 Kd8 Ne3
Bkrnqb2/1r2RNP1/2Pq4/2Pp2R1/r1R3P1/rP6/2Kq1bb1/4bN1n w - - 0 1 illegal: Other
3q3K/1qq2NrP/P1p1n3/n1P2b1q/B6p/n1nNrP1P/3q1RB1/1k4B1 w - - 0 2 legal: proof: b4 a5 e4 axb4 g4 h5 d4 e5 a4 f5 g5 g6 Ra3 Bh6 gxh6 exd4 e5 bxa3 Qf3 Kf8 Qe3 Ke8 Qe4 fxe4 Ke2 Ke7 c4 Ke6 c5 Kd5 h3 Kc4 h7 Kb3 e6 Kc2 e7 b5 e8B d5 a5 e3 Kf3 h4 Kf4 b4 Ke5 a2 a6 a1Q Nf3 d3+ Nc3 d2 Bc6 d1N Bfb5 g5 Rg1 e2 Be3 e1Q Be2 b3 Bf1 d4 Na4 b2 Be8 b1N Bc6 d3+ Nc3 d2 Be2 g4 Rg3 Bf5 Bd7 Qb2 Rg2 g3 Nh2 Ne7 Kf6 Nbc6 Kg7 Nd4 Bh5 Nec6 Bc8 Rg8+ Kh6 Na5 Be6 c6 Nd5 Rg7 Nf3 Na3 Ne5 Qb7 Nf7 Nc3 Nf4 d1Q Nd3 Qed2 Bf3 Kb1 Bb3 Ne6 Ba4 Qbc7 Rh2 g2 Be4 g1Q Bg2 Qb3 f3 Qbb6 Nfe5 Qbb7 Nf7 Nf4 Bf2 Qge1 Bg1 Qee8 Bf1 Ra7 Rf2 Qee5 Bg2 Qed5 Nfe5 Re7 Nf7 Re3 Kg7 Ne6+ Kh6 Nf8 Kg7 Qde5+ Kg8 Qee8 Nh6 Qh5 Kh8 Ne6+ Ng8 Qce7 Bb3 Qb5 Bd1 Rd7 Ba4 Qc7 Nh6 Qbb7 Kg8 Qed6 Kh8 Rg7 Nf7 Qdd8+
1rnq2b1/3n2n1/4pNq1/1PPrP2r/B1n1P1KQ/nN2B2r/5P1p/1k3B2 w - - 0 1 legal: proof: g4 g5 e4 b5 b4 f5 a4 f4 h4 gxh4 Rh3 c6 Re3 fxe3 Ra2 Bg7 d4 Be5 dxe5 bxa4 b5 c5 Rb2 Qa5+ Rb4 cxb4 Bg2 Qc7 Bf1 Qd8 Ke2 d5 Kf3 Kd7 c4 a5 g5 h5 g6 b3 g7 b2 Qc2 h3 Qd2 e2 Kg3 e1Q Qd1 a3 Kf3 a2 Kf4 a1N Na3 b1N Qb3 h2 Bh3+ Kc7 Bb2 Kb6 Ne2 Kc5 Qd3 Kb4 c5 h1N Qd2+ Kb3 Qc1 Ka2 Kg5 h4 Qd1 d4 Ng3 d3 Bc1 a4 Bg2 h3 Qg4 d2 Qd7 d1R Bf3 h2 Kg4 Nd2 Bb2 Rh5 Qe6+ Nc4 Nf1 Nd7 Be2 Rb8 Nc2 a3 Qg6 Kb1 Bd4 a2 Kf3 Ng3 Qh6 Nf5 Bc3 Rd5 Nce3 Nc2 Ng4 a1R Bd2 N2a3 Be3 Qea5 Qf4 Qab6 Nf6 Ra2 Bd1 Rad2 Qg5 R2d3 Kg4 Bb7 Qh4 Rb3 Bd4 Rh3 Be3 Qe6 Ba4 Bc6 Ng3 Qf7 Ne2 e6 Nc1 Nge7 g8B Nc8 Bh7 Ng7 Bf5 Qfe8 Nb3 Qg6+ Kf4 Ndb6 Bg4 Be8 Be2 Bf7 Bf1 Bg8 Ne8 Qh6+ Kg4 Nd7 Nf6 Qg6+
5Q2/Rrk2P2/1bP2RP1/1r3B2/1p1R1brq/1Pb3Pp/q4B1K/1bn2rb1 w - - 0 1 illegal: No possible last move, all moves rejected
Q1r3r1/bR1PK2p/3pr1q1/2PP2Pp/1q2PbR1/1nB1k2n/B7/1n2B1n1 w - - 0 1 illegal: Other
B2kq1bq/P5N1/5P1b/pR3qp1/2P1N3/PP3nKr/3rR1p1/b1r1Nq2 w - - 0 1 illegal: Other
3Bkr2/8/KP2PpR1/2RN3N/q1ppnR2/q1P3pq/1b1PP1nb/3q1b2 w - - 0 2 legal: proof: f4 a5 a4 h5 g4 hxg4 Nf3 e5 Bg2 b5 Na3 bxa4 Nb1 e4 Ng1 Rh5 Bf3 Re5 fxe5 exf3 Nc3 Ra6 Nb1 Rh6 Nc3 Rh7 Nb1 Rh8 b4 g5 h4 c5 c3 d5 b5 f2+ Kf1 c4 b6 a3 h5 g3 h6 a4 h7 g4 Rh2 a2 Rh6 f6 Rh4 Bd6 Qc2 Nd7 Qe4 Nc5 Nh3 Ne7 Nf4 Rf8 h8R Nf5 Qc2 Ne4 R8h6 d4 Rg6 Qe7 Ba3 Qh7 Nh5 Be6 Kg2 Ne3+ Kh1 Bc7 Be7 Ng2 Na3 Bd7 Nb5 a3 Rf1 a1Q Qa4 a2 Bd8 Bc8 Rg1 f1Q e6 Bb7 Rg5 Qad1 Rc5 a1B Na3+ Bc6 Nc2 Bb2 Nb4 Qc2 Nd5 Qa1 Rf1 Qa3 Rf4 Qf5 Kg1 Qg5 Rh2 Qh4 Kf1 Qh3 Rh1 Nh4+ Ke1 g2 Rg1 Qcd3 Kd1 Bb8 Re1 g1Q Ref1 Qgh1 Re1 Ng2 Rg1 Qde3 Kc2 Bd6 Rf5 Bh2 Kb1 Qh6 Rf4 Qh7 Kc2 Qb3+ Kb1 Qc2+ Ka2 Qa7 Rgf1 Qa5 R1f3 Qhd1 Rg3 Ba1+ Ka3 Qa6 Kb4 Bb2 Rgf3 g3 Rg4 Qa7 Rff4 Qe7 Ka5 Qd6 Rb5 Qa3 Rc5 Ne1 Ne7 Nd6 Rb5 Bg2 Ka6 Bf1 Nd5 Ng2 Rg6 Ne4 Rc5+ Qcxa4+
Nk6/2r2PN1/Rpb1bpK1/bqbnppr1/BP6/p1n2R1P/3P3P/5N2 w - - 0 1 illegal: No proof kernel
2Nqq2b/2r2P1n/2R2p2/krq3p1/Bnq3Pq/5bPP/q4PrK/BN2N3 w - - 0 1 illegal: Other
7r/Rq4Pp/b5P1/4RbB1/nQB2rrK/pnpR1P1P/P1n1rb2/5kq1 w - - 0 1 illegal: Other
b1r2Q1N/1pN1R3/n5p1/4p3/2P3rb/b1Pb1RPK/P3PNrb/1q2nrk1 w - - 0 1 illegal: Other
R1q3k1/rpp5/2P2qnb/2pb1r1K/1B1rR1nP/nPP4r/2N1P3/5nNR w - - 0 2 illegal: Other
2rnq3/1P2R1P1/np1p4/B1P2rpb/1qqrr1k1/1B5p/1PNP1b1B/NK6 w - - 0 1 illegal: Other
k2rn1Bq/3qR1Pb/n1pN1P2/1pPp3K/4R2P/1pbpr3/1P4p1/1Rb3N1 w - - 0 1 illegal: No proof kernel
1nkqQN2/K3p1bn/3Q1q2/q4pNr/Pr1P1nP1/1P2qB2/1Pb5/B3q3 w - - 0 1 illegal: Other
2Q2K1b/R1nbrP2/4PBq1/2r1n1q1/p3p2r/1PP5/B1PR1rQ1/k3n1q1 w - - 0 1 legal: proof: h4 e5 a4 g5 a5 gxh4 a6 c5 Rh2 c4 Rh3 c3 dxc3 bxa6 Rh2 a5 Rh1 a4 e4 Bc5 Nd2 Bf8 Ne2 f5 Nd4 exd4 e5 Ba3 Ne4 fxe4 Qd2 Bd6 Qd1 Bf8 Kd2 a5 g4 d5 f4 Kd7 e6+ Kc6 g5 h5 g6 a3 g7 d3 Ke3 Kb5 Kd4 Ka4 Ke5 a2 f5 d4 f6 d2 f7 h3 Ba6 h2 Qe1 d1N Rg1 h1Q Rg5 d3 Qf2 d2 Rg6 h4 Bf1 h3 Rg2 h2 Qf3 Nf6 g8Q Nf2 Qg6 d1Q Rg5 Na6 Kf5 Nd3 Bf4 Bd7 Rg4 Qg2 Be2 h1R Rb1 a1R Kg5 R8h4 Qh5 Qdg1 Kg6 Bg7 Bg3 Nc7 Qhf5 Bh8 Qd5 Ra7 Qa8 R1h2 Be5 Ne1 Qc8 Qe7 Rg5 Ng4 Rd1 Qd8 Rh5 Qg5+ Kh7 Rb1 Bf6 Ne5 Rd2 Q2g4 Bc4 Rf2 Qg2 Rd1 Rd6 Rd5 Ba2 Rc5 b3+ Ka3 Rd5 Kb2 Rd2 Ng6 Kg8 Ne5+ Kf8 a4 Qh3 Qg6 Qg2 Ka1 Rg5 Nc4 Rgd5 Ne5 Rd6 Qf4 Ra6 Qfg5 Ra5 Rb7 Ra7 Na8 Bb1 Be8 Rd1 Re7 Rd2 Bd7 Ba2 Nc7
8/1Pp1Q1R1/2k1nP2/BrP1Pq2/1pQ2P2/K2n3n/1r2n1p1/N1bq1q1Q w - - 0 1 illegal: No possible last move
k2K2q1/pr3P2/3RP1Q1/p1n1Q1np/PB2Ppp1/7r/p4P1R/5Rqq w - - 1 2 illegal: No proof kernel
2knQ2Q/b1n2NNn/p1p2qP1/Pn2pP2/1r2P1r1/1KP5/2r1N2q/b3B2b w - - 0 1 legal: proof: h4 b5 g4 d5 a4 g5 b4 gxh4 e4 f5 a5 f4 c3 d4 Be2 d3 Ra4 bxa4 b5 f3 Ba3 Nh6 Qc1 Nf5 Kd1 Bg7 Qc2 fxe2+ Kc1 Bh6 Kb2 Ng7 Nh3 Nf5 Rc1 Bf8 Ng1 Nc6 Qd1 Nh6 Qf1 Ng8 Qh3 Nb8 Rc2 dxc2 Qf3 Na6 Qe3 Nb8 d4 Kd7 f4 e1N d5 c1R g5 h5 d6 e5 g6 c6 b6 h3 b7 h2 Qc5 h1N Nd2 h4 Nb1 h3 Qc4 h2 Nf3 Rh4 Qa6 Nf2 Bb4 h1Q Qe2 a3+ Ka2 Nh6 Nbd2 Rc2+ Kb3 a2 Ng1 a1B Qf1 Na6 b8Q Rg4 Ka4 Nf7 Ba3 Qh2 Qb7+ Nc7 Bc1 a6 Qb8 Nf3 Nc4 Qf6 Bd2 Nd8 Ne2 Nh3 Ne3 Nhg5 Nf5 Nh7 Qh3 Nd4 Be1 Ndb5 Kb3 Bh6 Ng7 Bg5 Qa7 Rb8 Qc5 Bh6 Qd5 Bg5 Qg8 Bh4 Qh8 Bf2 Qd3 Ba7 Qc4 Rb6 Qcg8 Bb7 Qe8+ Kc8 Qhf8 Kb8 Qh8 Bc8 Bd2 Bf5 Be1 Kc8 d7+ Kb7 Ng3 Na3+ Ka4 Nf7 d8N+ Kc8 Qef8 Rg5 Nf1 Bh3 f5 Bg2 Ng3 Bh1 Qe8 Rg4 Ne2 Rb1 Qe7 Nab5 Qee8 Rd1 Kb4 Rd4+ Kb3 Ra4 Nde6+ Nd8 Ng5 Rc4 Nf7 Rb4+
2n5/Pbrp2n1/p2P3k/q1pr1B1B/R4qbN/KrP2P1P/B4n2/2Br4 w - - 1 2 illegal: No proof kernel
N2nr1QR/2pp1K2/3QnPPb/5bk1/r1QP1b2/2Pr4/1bPQ1n2/5bq1 w - - 0 1 illegal: No proof kernel
1R6/3pPr1P/qN1p1p1p/pQ3nk1/1P1Bn1PN/1p1P4/4bPp1/4K2b w - - 0 1 legal: proof: c4 b6 c5 Ba6 g3 Bb7 Bh3 Bc8 Be6 Ba6 Bc4 c6 Bb5 cxb5 c6 Bb7 c7 Bc8 b4 h5 g4 h4 Nc3 Bb7 c8N Ba6 Nd6+ exd6 Ne4 Be7 Ng3 hxg3 h4 Bg5 h5 Be3 h6 Bd4 h7 Bc5 Rh6 gxh6 a3 Bc8 Nf3 a5 Qa4 Ba6 Qc2 Qc7 bxc5 b4 Kf1 b5 Bb2 Qd8 Rd1 Ra7 Bc1 Rb7 Re1 b3 Qd1 b4 Kg2 b2 Rh1 b3 Kf1 Qb6 Ng1 Qc7 Ke1 Rb4 axb4 Qd8 e4 Ke7 c6 Kf6 c7 b1B c8N Kg5 e5 f6 e6 Ne7 Bb2 Be2 Nb6 Nf5 e7 Be4 Bd4 Na6 d3 Qa8 Qa1 Rf8 Qa4 Qc8 Qb5 Rf7 Rh2 Bh1 Nf3+ Kf4 Rh5 g2 Rg5 Nc5 Nh4 Ne4 Rg8 Qa6 Rb8 Kg5
q1k1n3/Q3bP1P/K2qq3/2B1P1qP/2r4P/Pn3b2/1nnq1p2/3B1RrN w - - 0 1 illegal: Other
R3rn2/b1P2pp1/1q3kP1/1np1r3/B2bnr2/R1PPPP2/4Q2N/1b1nr1K1 w - - 1 3 illegal: Other
5BRK/p6n/1kr2PB1/1b4Qb/PN1P1p1n/p1pPP1r1/q1P3pb/1br5 w - - 0 1 illegal: Other
bR2r3/PKb1q1q1/p5P1/1nqP2P1/3N2Rb/3nN1n1/nP4pP/1rk3B1 w - - 0 1 illegal: No possible last move
4b3/N3PpR1/nnPPq2R/n2P4/qQn2rnN/1P3P2/K1n1kb1p/4r3 w - - 0 1 illegal: Other
3n2N1/5PqP/2Q4P/1pKb1PRr/2p1b1qb/2p2P1q/n1P1n1k1/bR5N w - - 0 1 illegal: Other
4nR2/1nb2nn1/bPR5/p2k1NPq/P1r2br1/1K3Ppp/qpBP3P/N7 w - - 0 1 illegal: No proof kernel
2rrbb2/1P4Rn/P1n1R1q1/1Pnb4/n1Bp3k/8/n1RP1PpP/K4Nr1 w - - 0 1 illegal: No proof kernel
1R1rQ3/3pRb2/1P1P1bbb/1n3rn1/pr1PN2K/n4n1Q/3Pk1PP/4q3 w - - 0 1 illegal: Other
1r1n1Kb1/3k4/4Rpp1/1P2qP1r/rnRbP1Rq/3NPPN1/1p2P2r/8 w - - 0 1 illegal: Other
1r1Rn2r/n1k2K2/2P1P1Pr/1P2Nnn1/1pP1r1P1/1R1q4/P2rQ3/6n1 w - - 0 1 legal: proof: d4 a5 f4 b5 c4 c5 Na3 e5 Bd2 exf4 dxc5 b4 Bc3 bxc3 b4 Qg5 b5 Qd8 g3 g5 Nc2 g4 Nb4 axb4 Bg2 Qg5 Bf3 Qd8 h3 gxf3 Qa4 Bb7 Qa6 Be4 Qc8 Bf5 Kd1 Bg4 hxg4 Bh6 Ke1 Ke7 Rxh6 Kf8 Rh1 Ke8 Kf2 f5 e4 d5 e5 h5 e6 h4 g5 h3 g4 c2 g6 c1N Rh2 d4 Qa6 d3 Qa5 d2 Rh1 d1R Qb6 h2 Qa7 Ne2 Rb1 Qd3 Qb6 Nf6 Qc7 Rd2 Rb2 Nc6 Rb1 Na7 c6 Rb8 Qe5 Kd8 Qc5 Kc7 Rb3 Ne8 Nh3 Ng1+ Ke1 Rh6 Qe3 Rh8 Qe2 f2+ Kf1 Rh6 Kg2 f1N Nf2 Ng3 Qe3 Ne4 Qh3 Ng5 Rb1 f3+ Kg3 Rh8 Qh5 f4+ Kh4 Rh6 Rb3 Rh8 Nd1 f2 Nb2 f1R Qh6 f3 Kh5 Qd8 Nd3 f2 Ne5 Re1 Kh4 f1N Kh5 Nh7 Qe3 Ng3+ Kh6 Qd3 Qf2 Re4 Qe2 Nd6 Kg7 Ng5 Kf6 Ne8+ Ke7 Rh6 Kf8 Nf5 Kg8 N1f3 Rd1 h1R Kf8 Ng1 Kg8 N5f3 Kf7 Rh8 Rc1 R1h6 Rcc3 Qc2 Rd3 Qc3 Rd6 Qd3 Rd8 Ng5#
b1kr4/R1P2p2/2q1p1p1/2N4P/P4N2/nKr1qPbp/3P2PP/qn1qrR2 w - - 0 1 illegal: Other
3r1BK1/1p1R1qQ1/2B1b3/4NN2/b3rB2/RQb1n2q/N3nQ2/k2qn2R w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e3 Nf6 e4 Ng8 h4 f5 exf5 g5 a3 bxa3 hxg5 Ra4 Be2 Ra5 Bf1 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 h4 f4 c6 g6 h3 f6 a2 f5 e6 g7 h2 g5 Rh6 f7 Qa5 g6 Nf6 g8N Ng4 g7 Rh4 f6 e5+ Kc4 e4 d4 e3 Bg2 c5 Ne7 e2 g8Q e1N Qg7 Qa3 Nf3 Nc6 Nc3 Be6 Ne5 Rd8 Bf4 Qa5 Qf3 Qa3 Qf2 Ne3+ Kb5 c4 Nf5+ Kc7 Be4 Bb4 Bf3 Ba5 Be4 Qb3+ Kc5 Qd1 Bg2 Qh5 f8Q+ Bd7 f7 Be6 Rc1 a1Q Na2 Qc3 Ra1 Qd3 Qfg8 c3 Qe8 c2 f8B+ Bf7 Be4 Bc3 Bf3 c1Q d6+ Kb8 d7 Ka7 Kd6 Kb6 d5 Ka5 Qe6 Nd4 Ke7 Ka4 d6 Ka3 Bc6 Qcd1 Qd5 Bg8 Qdf7 Ne2 Ke6 Kb2 Kf6 Ra8 d8Q Rb8 Qdc7 Rd8 d7 Rg4 Qd5 Be6 Qf7 Rh4 Kg7 Rg4+ Bg5 Rh4 Kg8 Ra4 Bf4 Re4 Rg1 h1B Rf1 Bg2 Rh1 Bh3 Qb5+ Bb3 Qbd5 Ba4 Qc4 Re8 d8R Bg4 Rd7 Rd8 Nc1 Bh3 Ra3 Kb1 Na2 Ka1 Qb3 Bg4 Ne7 Be6 Nf5 N3g2 Qd6 Qdh3 Qe7 Ne3 Qg5 Bb4 Qgg1 Bc3 Qg7 Qxf7+
2N1rR1B/3b1qQ1/p1NN1QrK/1Rbbn3/5QB1/nq1b3b/k3B2R/5q2 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 g5 h4 gxh4 c4 e5 cxd5 exf4 axb5 c5 Ra5 cxb4 Ra6 Qg5 Ra1 Qd8 Kf2 Ke7 Kf3 Kd6 g4 Kc5 e4 f5 d6 h5 e5 b3 d4+ Kb4 b6 b2 e6 a6 b7 h3 g5 h4 e7 h2 e8N h3 d5 Nh6 d7 Qa5 d8R Qb5 d6 Ng4 d7 Bc5 g6 Nc6 b8Q Na7 g7 Rh5 g8B Rg5 Na3 b1B Ne2 Bd3 Nd6 Qb7+ Bd5 Nb5 Nac4 Na3 Rf8 Qb5 d8Q Bd7 Qd2+ Kb3 Qa7 Qb6 Qf6 Re8 Nc8 Qe6 Qa5 Qf7 Rb1+ Ka2 Nd4 Ne5+ Kf2 f3 Ke3 f2 Kf4 Rg1 Bb2 Rg5 Be2 f1Q+ Bdf3 Qd1 Nc6 Qb3 Rhc1 h1Q Qa4 h2 N4d6 Qg2 Rc2 h1B Bg4 Qh3 Rd2 Bd5 Bd4+ Qc2 Rb5 Qf1+ Kg3 f4+ Kh4 f3 Qc7 Rg6 Kh5 Rg5+ Kh6 f2 Bb2 Qb3 Qaf4 Qg1 Qa7 f1B Qc7 Bh3 Qa7 Bb4 Qad4 Bc5 Qg7 Nf3 Qdf6 Ne5 Qg8 B3f5 Qd8 Qb1 Bf1 Q1d3 Rh2 Nec4 Bh8+ Qe2 Qg7 Bd3 Qe7 Ne5 Qef6 Qf2 Bfe2 Qg1 Nd8 Qf1 Nc6 Rg6+
1R2b2Q/8/2k1qr1B/Rb2r1N1/Bq4nB/2Nr1rp1/3QN1K1/nqR3qQ w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 b4 a5 e4 f5 c4 h5 g6 d5 e5 Kd7 g7 g2 Kf2 h4 c5 h3 b6 f4 e6+ Kc6 e7 g3+ Kf3 h2 e8N d3 b7 d4 Na3 d2 Ba6 d3 Nd6 a4 Qf1 d1Q+ Ne2 g1Q Nb1 a3 Bc4 d2 Be6 a2 Bb3 Qe8 Ba3 Nh6 g8R Ra6 Nf7 Qe1 Ng5 d1R Nbc3 Nd7 b8B Ng4 Bb2 Rh5 b5+ Kb7 b6 Qe6 Bc2 Kc6 b7 Rd4 Rc1 a1R Be5 R1a2 b8Q R2a3 Bf6 Rd1 Qe5 Rd3+ Qe3 Rb6 Bd8 Ba6 Bb3 Bb5 Ba4 Ra6 Ra1 Qb1 Bc1 Qb4 Qh3 Rb6 Bd2 Qgb1 Rc1 h1Q+ Qg2 Qg1 Qh1 Rb3 Nh7 Re5 Bh4 Qe1 Kg2 f3+ Kh3 Qf2 Rb8 Qg1 Qd4 Ra3 Bh6 Rb3 Ng5 Ra6 Qh2 f2 Qh1+ Rf3 Qd2 Ra3 Nd1 Rd3 Ndc3 f1B+ Qg2 Kc7 c6 Nc5 Ra3 Kd6 c7 Nb3 c8Q Na1 Qh8 Bd7 Nf4 Be2 Qh1 Bb5 Ra2 Kc6 Ra3 Bd1 Nfe2 Bb3 Ra2 Bd5 Ra3 Be4 Ra2 Bg6 Ra3 Be8 Ra2 Qe3 Kg2 Qec5 Ra3 Qg1+ Kh3 Kc7 Bd1 Qf5 Ra5 Rf6 Bc2 Kc6 Ba4 Qd1 Kg2 Qe6 Nge4 Qe1 Ng5 Qg1+
2nn1r1r/3R1n1B/1N1BnQp1/2br4/4BRrR/k4NKQ/1NQ1q3/5q1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 e4 Kc5 b4+ Kb6 d4 f5 e5 a5 e6 c5 e7 c4 e8B a4 d6 f3 d7 a3 d5 c3 d6 f4 h5 a2 h6 c2 h7 Ne7 Ba3 c1N Bd3 Ra5 Rh4 Bb7 Beg6 Qe8 d8R Nc8 d7 Nc6 Bde4 Bc5+ Qd4 Ba8 Nd2 Ne2 Re1 a1R Rf1 Rd1 Bgf5 Nc3 Bg6 Nd5 Bgf5 Nc7 Nc4+ Kb7 b6 Ka6 b7 Kb5 b8Q+ Ka4 b5 Ne6 b6 g6 b7 Kb3 Nb2 Rd3 Qc7 g3+ Ke1 g2 b8N f2+ Ke2 N6e7 Nf3 Nc6 Qf6 Rd5 Bg4 Bb6 Bd6 Bc5 Bh3 Qe7 Qg5 Ka3 Qg4 Rf8 h8Q g1R Na6 Rh1 Nb4 Rg5 Nd5 Qe8 Rd1 f1N Rd4 Ng3+ Kf2 Nf5 Nb6 Nh6 Bf1 Nf7 Bc4 Bb4 Qhh5 Rad5 Qh3 Bc5 Q5g4 Rf1+ Kg2 Rh8 Kh2 Qe7 Rf8 Qe8 d8Q Bb7 Qf6 Ncd8 Nd2+ f3 Kg3 f2 Nf3 Qb5 Bb3 Qe2 Qc6 Nh6 Rf7 Ba8 Rd7 Nhf7 Rb4 Rf8 Bc4 Rh1 Ba2 f1Q Qc7 Be3 Qc2 Bc5 Bf5 Ne5 Ng1 Rd1 Rh8 Qb5 Rf4 Ng7 Qh7 Qbe2 Bg8 Nge6 Qh2 Bf3 Be4 Rd5 Qg2 Rhh5 Qh3 Bh1 Nf3 Nef7 Qg2 Rh7 Qh3 Rg7 Rh5 Rh7 Rh4 Rh8 Bh7 Rxg4+
RrB2q2/NB3qNr/1K1QQp1R/5q2/rN6/3n2Bb/2bk1rq1/5RrQ w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 g5 a5 Bd2 axb4 Be3 Qf6 Bc1 Qd8 h4 Ke7 Bb2 f6 Bc1 Nc6 Ba3 Ne5 g6 Nf7 gxf7 g5 Bc1 g4 Bg2 Bh6 Bf1 Bg5 hxg5 Ra5 Bg2 Ra4 Bf1 Ra8 Kd2 Kd6 Kd3 Kc5 f8N b5 c4 d5 e4 h5 a4 f3 a5 h4 e5 f2 e6 h3 g6 h2 e7 g3 e8R g2 g7 b3 a6 Kb4 c5 b2 c6 Nh6 g8B Nf7 c7 Bh3 c8Q Rh7 a7 Ne5+ Ke2 d3+ Ke3 d2 Kd4 Nd3 Ne2 g1R Bg2 f1R Qe6 Rf2 Na3 b1Q Nf4 Qe7 Bf3 Qf7 Rc8 Rb8 a8Q Rg4 Rf1 h1Q Qaa6 Qc2 Qad6+ Kb3 Qde1 b4 Nb5 d1Q Ra8 Qg2 Na7 Qb1 Re8 Kc2 Bd2 b3 Bc1 Ne5+ Kc5 b2 Nd3 Ra4 Bf4 d4 Bg3 Qd2 Bd5 Qh6 Bb7 Qhg7 Qe4 Kd2 Nb4 d3 Kb6 Qc2 Rc8 b1R Rc4 Rd1 Q4d5 Qh6 Rh4 Qc8 Rh5 Qg5 Rh6 Qf5 Ng6 Rb1 Nf4 Qcf8 Nh5 Rc1 Ng7 Rca1 Rh1 Rg1 Qf3 Kc1 Qfd5 d2 Qf3 d1B Qfd5 Re1 Rf1 Bc2 Qf3 Nd3 Qfe4 Qh2 Qg2 Kd2 Qh1 Q7g6 Bf7 Qg2 Be8 Rb1 Bd7 Qgf7 Bc8 Re2 Rf2 Rg1 Rf1 Rf2
BK1Q1R1b/nNn1QN2/5n2/r5np/1q2pk2/r2R1r2/2B3rR/1B2rNQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 g4 Qc7 f5 Bb7 Bd2 Bd5 Bf4 gxf4 h3 Qd8 g5 Bf7 Nd2 Bh5 Nb1 Bg4 hxg4 Bg7 Rh2 Bh6 Rh1 Bf8 Ke2 Kf7 c4 d5 b4 e5 b6 a5 g6+ Kf6 g5+ Kg7 c5 h5 c6 a4 b5 a3 c7 e3 Kd3 e2 c8N e1R b7 f3 b6 f2 Nd2 a2 Bg2 f1N Nh3 Ra6 Rh2 Ra4 Nd6 Ne3 Nf1 Nc6 b8R Ra5 b7 Qd7 Qg4 Qf7 Rd1 a1R Re8 Nf6 b8Q Qd7 Nb7 Rg8 Qd8 Qd6 Bf3 Qb8 Qg1 Na7 Rdd2 Ba3 Rf8 Bb2 Bd1 Bc3 Bc2 R1a3 Bb1 Qd6 Bc2 Qb4 Qe7+ Kh8 g7+ Kh7 g6+ Kh6 Rd1 Rb3 Ng5 Rba3 Rd8 Rf8 g8B Re2 g7 Rg2 Bh7 Rf7 Ne4 Rf8 Ned6 Kg5 g8B Kf4 Bf7 Nd7 Nc5 Rfg8 Bb1 R8g3 Rg8 Rf3 Rh8 Nb8 Qd8 Na6 f6 Nc7 Re8 Raa2 Be6 R2a3 f7 Ng4+ Ne3 Nh6 f8Q+ Nf7 Qfe7 Ng5 Nf7 Bb2+ Nb3 Bc3 Rf8 Ba1 Rd2 Bc3 Nc5 Ba1+ Kc2 Bb2 Nf1 d3+ Kd1 d4 Bd5 Ba1 Ba8 Bc3 Kc1 Ba1 Rd1 d2+ Kc2 Bc3 Re1 Bb2 Re3 Bc3 Kd3 d1R+ Nd2 Re1 Nf1 Qb7 Kc4 d3 Bf5 d2 Bfc2 d1N Rd3 e4 Re3 Qc6 Rd3 Bh8 Kb4 Qd6 Kc4 Nab5 Nb7 Qb6 Kb4 Nf2 Kc4 Ng4 Kb4 Qe6 Kc5 Qc4+ Kb6 Nf6 Rg8 Nce6 Rf8 Qb4 Kc6 Nfh7 Kd7 Nec7 Kc8 Na7+ Kb8 Nf6
Nk1nn1n1/1N2R2B/b2r4/q4nBn/r4Rrb/2q4B/1Q5Q/QnR1NKb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 g4 a5 e4 h5 b4 d5 c4 Kd7 c5 Kc7 e5 f5 e6 f3 c6 h3 e7 d3 e8Q f4 g5 h2 g6 f2+ Kd2 a4 g7 a3 Qc2 a2 Bg2 f1Q Bh3 h4 Qe6 d4 Qe3 f3 Qc3 f2 Bg4 h3 Be6 Ra4 Qc2 Bc5 Qc3 Ba6 Na3 Rh4 Qb2 Rg4 Qe1 Qg2 Nf3 f1N+ Kd1 d2 Nc4 Ng3 Na5 Nf5 Nb7 Qg3 Ke2 d1N Bg5 d3+ Kf1 d2 Rc1 a1B Rc4 Qe5 Rf4 Nc3 Qec1 d1R+ Ne1 Rd6 Rg1 Nge7 g8B h1N Bh7 Ng7 Qh2 Bb2 Qa1 Nb1 Bef5 Qc3 Bc8 Kb6 c7 Ka7 Bd7 Ne8 c8N+ Ka8 Nb6+ Ka7 Na8 Nbc6 Bdf5 Qa5 Be6 Nd8 Bd7 Rd3 b6+ Kb8 b5 Ng8 Be6 Bc1 Qhb2 h2 Bc8 Rg2 Bh3 Rg4 Nd6 B1e3 Ke2 Rdd4 b7 Bf2 Nc2 Ka7 b8R Ba3 Rc1 Bh4 Ne1 Ng3+ Kf2 Nh5+ Kf1 h1N Rc8 Bc5 Rc7+ Kb8 Re7 Rd3 b6 Bg1 b7 N1g3+ Kg2 Nf5+ Kf1 Ka7 Qh2 Bb5 b8Q+ Ka6 Nb7 Bc4 Qd6+ Ka7 Qe6 Rd6+ Qee2 Ba6 Qb5 Kb8 Qbe2 Rd3 Qeb2 Rd6+
Nb2R2B/K1bBn1N1/bRrnQ1Q1/3Q1qB1/2N1r3/nnb2b1R/q3qk2/8 w - - 0 1 illegal: No possible last move
1n1NQbk1/1R4r1/r2rn1n1/1bBNQrnn/3qb1K1/bB6/1QN5/R4RB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 a5 g4 h5 e4 f5 b4 Kf7 c4 a4 c5 h3 e5 d3 c6 h2 c7 d2 g5 d4 b6 h4 b5 h3 b7 a3 b6 a2 Bb2 d3 Bd4 Bd7 c8Q Ne7 g6+ Kg8 g7 Rh7 e6 Ra6 Na3 Bb5 Nc4 Ng6 Bc3 Qd4 Rc1 a1B e7 Bb2 e8Q Ba3 Qde2 d1N Nd6 d2 Bb4 Nc3 Ra1 d1R Q2e5 Na4 Qc1 Nc5 Ne2 Ne6 Qb2 Rd2 Rg1 h1N Nf7 h2 Bc5 Nf2 Nd8 h1B+ Bg2 Nh3 Rgf1 Qc4 Bg1 Rd6 Nd4 Qa4 Nc2 Nhg5+ Kf2 f3 Kg3 f4+ Kg4 f2 Bd5 Be4 Bb3 Nd7 b8R f3 Rb7 Nb8 Rfb1 f1N Bc5 Ng3 Rf1 Nh5 Bg1 Rh6 Bc5 Kh7 g8N+ Rd7 Ne7 f2 Nd5 Kg8 Rc7 Qd4 b7 Rg7 Re7 Nd7 b8B Rd6 Bba7 Nb8 Rb7 Ra6 Rg1 f1R Rh1 Rf5 Rhf1 Rd7 Bab6 Rd6 Ba7 Rh7 Bab6 Rg7 Ba7 Qa4 Bg1 Qb4 Bac5 Qd4
N6k/r1q1Q1Nq/1R4B1/Bb3RB1/Rb2rN2/q2n1b1b/1nQp4/1K1b1rQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 g4 Kf7 b4 Kg7 e4 d5 c4 a5 Kc2 h5 g5 h3 b6 d3+ Kb2 h2 c5 d2 c6 f3 g6 h4 b7 a4 e5 a3+ Kc2 h3 c7 f2 e6 a2 e7 f4 e8Q d4 b5 f3 b6 Ne7 Nc3 Nd7 b8R Nf5 b7 Bb4 Na4 Nd6 Nc5 Nc4 Ne2 Nde5 Nf4 Nb2 Bd3 Rh4 Qe7+ Kh8 Nce6 f1R Ng7 f2 Rg1 h1Q Rg5 h2 Rf5 Be6 c8N Ra7 Nb6 Bc8 Na8 Qc7+ Kb3 Rg4 Qc2 d1B Be4 d3 Bd2 Bd6 Ba5 Bc5 Kc3 Rh4 Kd2 Bb4+ Kc1 Rg4 Bc6 Qe4 Be8 h1B Rg5 Rg2 Nge6 Kg8 g7 Qh7 Rh5 Bd7 Rg5 Bb5 Rf5 Qg6 Bf7+ Kh7 Be8 Rg3 Bf7 Re3 Be8 Re4 g8Q+ Kh6 Bf7 Qh7 Qg1 Bhf3 Bh5 Qg7 Be8 Kh7 Bf7 Qg8 Bg6+ Kh8 Ng7 Nc6 Rbf8 Ne5 R8f6 Qh7 Rb6 Rfe1 Re6 f1B Rb6 Bh3 b8B Qc5 Nd5 Rf1 Bd6 Qc3 Bc5 Qc4 Be3 Qc5 Bg5 Qc7 Rb1 a1Q Nf4 Qa4 Ra1 d2+ Kb1 Ned3 Ra3 Qb3 Ra4 Qa3
1Qnb1qr1/2R2N1r/Q2B4/Bb1K1r2/bb2pqNn/3k4/R1bnN1Q1/3B1R2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe3 e1B Qf3 h3 Bg2 a2 Ba3 Nh6 Qe3 Nc6 b8R Ra5 b7 Beb4 Ne2 Ne7 Nbc3 Bd7 c8Q Rg8 Rhf1 h1Q Nd1 h2 Qd2 Qg1 Bh1 Qf2 Bf3 h1R Bb2 Bg7 Bc3 Qf8 Qb2 Qh2 Nf2 Bf6 Ng4 Qf2 Rac1 a1N Ra8 Nb3 b8Q Nd2 Qa6 Nc8 Ra7 Rh5 Rc7 Bh4 Ra1 Bd8 Ra2 Rh2 Ng1 Bc6 Bd1 Rh4 Ne2 Bb5+ Kc2 Ke4 f5 Rh5 f6 Nf5 f7 Qf3 Qb3 Qf4 Qb2 Q8h6 f8B Nh4 Bd6 Qhf8 Nh2 Rh6 g4 Rh7 g5 Ke3 g6 e4 g7 d3+ Kc1 d4 Qc2 Nb1 Kb2 d2 Kb3 d3 Qb2 Ba4+ Kc4 Rf5 Nf3 Bc6 Ne5 Be8 Kd5 Bb5 Ba4 d1B Qc2 Rgh8 g8N d2 Nh6 Rg8 Qb2 Bc2 Nf7 d1B Be1 Rf6 Ng4+ Kd3 Bc3 Nd2 Bb3 Bc5 Ba5 Bb4 Qe5 Q4h6 Qh2 Qf4 Qg2 Rf5+ Ke6 Bb1 Bd5 Ba4 Bb3 Rf6+ Kd5 Q8h6 Rb2 Qf8 Bd1 Bbc2 Ra2 Rf5+
5BbR/K1Q4b/nQ4nR/q1rpQ3/kb2rB2/q7/N2NNRb1/nq2bB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 b4 f5 g4 d5 c4 Kd7 e4 h5 c5 h3 e5 a4 b6 Kc6 b7 f3 e6 f4 g5 a3 g6 h2 e7 h4 e8R a2 g7 d3 Bd2 Kb5 c6 h3 c7 Ra4 Re2 Na6 b8N Ne7 g8Q Ng6 Bc1 d2 Qe1 d1B Qf7 Be6 c8Q Qa5 Nc6 Bc2 Qfc7 Bg8 Q8d8 Rh7 Qcc8 Rc7 Nd2 Be4 Rb1 a1B Ba3 Bc3 Rb2 Bd3 Re8 Be7 Ne2 Bc2 Ne5 Rc5 Qcc7 Bf8 Nc6 Bd3 Rg1 h1Q Rg3 h2 Rh3 Bf5 Rh6 Be7 Qdd6 Bc2 Qe5 Bd3 Qb1 Be4 Bh3 Qc1 Bf1 h1B Ra2 Bg2 Qb2 Be6 Reh8 Bg8 Qc8 Kb6 b5 Bc2 Qb3 Re4 Nb4 Bd3 Rc2 Qa1 Na2 Bb4 Rb2 Bh4+ Kg1 Be1 Qd8+ Kb7 b6 Kc6 b7 Kb5 b8B Bc2 Qbc3 Ka4 Qb6 Bd3 Qec7 Qc1 Q3e5 f2+ Kh2 f3 Kg3 Re3 Kg4 Re4+ Kf5 Qa1 Qf7 Qc1 Ke6 Qc3 Kd7 Bb1 Rc2 Qe3 Bc1 Qa3 Bd6 Qb2 Nb3 Nh4 Ned4 Bec3 Be2 f1N Qg5 f2 Bcf4 Re3 Qe5 Nd2 Bf8 f1Q Qh7 Qe1 Bf1 Qa3 Kd6 Re2 Qhc7 Qd1 Rb2 Bbh7 Kd7 Ng6 Kc8 Re1 Kb7 Re4 Ka7 Qb1 Rc2 Nc4 Rd2 Ne3 Rf2 Nc2 Ne2 Be1 Nd2 Na1
3Q1qN1/B4nn1/k1B1p2r/3q3n/N3QNRR/Q4r2/1q1nb3/KR1bb1Br w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 h5 b4 d5 c4 Kd7 Kc2 Kc7 Kb2 Kb6 f4 a5 g4 d3 g5 d2 g6 a4 f5 e3 g7 h3 f6 e2 f7 e1N Qg4 d1N+ Ka2 h4 Qf5 h2 Bf4 h3 Bd2 d4 Qe5 d3 Bg2 a3 Ne2 e6 Qe4 Nf6 g8N Ba6 Nbc3 Nbd7 Rb1 Ne5 Nf4 Nh5 Ka1 a2 c5+ Ka7 c6 Rh6 c7 Ne3 c8R N1f3 Rc4 Nf5 Rhg1 h1Q Na4 h2 Be3+ Bc5 f8Q d2 Bd4 d1B Bf2 Qd5 b6+ Kb7 b5 Nd2 Bf3 Nf7 Rg4 Nfg7 Bg1 Bf2 Qa3 Be1 Rh4 Rf8 Rd4 Kb8 b7 Ka7 b8B+ Kb7 b6 Bae2 Bg2 Ka6 b7 Qd8 Bf3 Qg2 Ba7 h1R b8Q Qf1 Rd3 Qd5 Qd8 Qf2 Bg2 Qfc5 Rg3 Qc8 Rgg4 Qca8 Kb2 a1Q+ Kc1 Qad4 Bf3 Qf2 Kb2 Qb6+ Ka1 Qda5 Qed5 Qbb7 Qe8 Nh8 Ng2 Rf5 Qe5 Nf7 Bc6 Qd5 Qe4 Rf3 Nf4 Qb6 Qd7 Qf8 Qd8 Qb2+
2b4B/5r2/1BQ3Nb/Nr1q1R2/1r1rQ1rb/prKR1B2/Qn5R/1Nkq2n1 w - - 0 1 illegal: No possible last move
1q2b1R1/8/1n1k2N1/N1Rbp2R/1n4Qr/2n1KNBr/n2QB1QB/2nqb1n1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 d5 f4 Kd7 b4 e5 g4 a5 c4 h5 b6 a4 b7 e3 f5 d3+ Kf3 e2 f6 e1N+ Ke3 d4+ Ke4 a3 f7 d2 b5 a2 b6 h3 g5 h4 g6 d3 c5 h2 g7 h3 c6+ Kd6 c7 Nc6 b8R Nf3 b7 Rh4+ Ke3 Nf6 g8Q Ra3 Be2 Bd7 c8Q Nd5+ Kf2 Be8 Ra8 Nb6 Qg2 Nb4 Qcg4 Qb8 Ke3 Be7 Qe1 d1Q Qc3 d2 f8N Rb3 Na3 Bd8 Rb1 a1N Rb2 Na2 Ng6 Be7 Ra5 Bf8 Rc5 Nc2+ Kd3 Ncb4+ Ke3 Ne1 Rb1 Ned3 Nf3 Be7 Rg1 h1B Qc2 h2 Qb2 Qa7 b8B+ Qc7 Ba7 Qb8 Nc2 Rc3 Na1 Ra3 Nb3 Bf8 Q2h3 Bg2 Qhg3 h1N Na5 Nhf2 Qc2 Bh1 Qg2 Nh3 Rb3 Be7 Rbc3 Bf6 R3c4 Rc3 Rf4 Bd8 Rf5 Be7 Rh5 Rb3 Bb2 Ndc1+ Bc3 Ra3 Ke4 Bf6 Bd4 Bg5 Bf2 Be3 Bg3 Bf2 Qc3 Be1 Ke3 Qb3 Ke4 d1N Qc2 Ndc3+ Ke3 Qd5 Bh2 Nba4 Bb6 Qd1 Bd8 Nb6 Qd2+ Nbd3 Bg5 Rb3 Bgf4 Ra3 Nd4 Ndb4 Bfg3 Rb3 Rf1 Ng1 Rf8 Ra3 Rg8 Rb3 Qf2 Bd5 Qg2 Ra3 Nf3 Rh3 Nb3 Ra7 Na5 Rh7 Rg5 R7h4 Rf5 Nb5 Rh5 Nbc3
R1bR2B1/bB4r1/Nq3nNp/kbR5/q1r2N1Q/4b3/QK1bq3/4QnBb w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 g4 d5 c4 Kd7 Kc2 Kc7 f4 Kb6 b4 a5 f5 d3+ Kb3 e3 g5 h3 g6 e4 g7 d2 f6 e2 f7 e1Q Qc2 d1B Ka2 h6 Bg2 a4 Nf3 d4 Nc3 e3 Ne5 d3 Kb2 h2 Bb7 e2 Be3+ Bc5 f8Q d2 Qf4 Na6 Bg1 Nc7 Ng6 Be3 Qh4 Nf6 g8B Ncd5 Qb1 Bb3 Qa2 d1Q Rc1 Ra7 c5+ Kc7 c6 Kb6 c7 Bc4 Rc2 Qf1 Rc1 e1B Ne2 Bd2 Nef4 Qfe2 Rc2 Bd3 Rc5 Rh7 Qe1 Re7 Qh4 Re4 Qe1 Rc4 Qh4 Bg4 c8Q Qc7 Qe8 Bc8 Qe6+ Qd6 Ba6 Rg7 Bb7 Nh5 Qe8 Ng3 Qee7 Nf1 Qe1 Ka7 Q7h4 Nf6 b6+ Kb8 b5 Qb3+ Ka1 a3 Bg2 Qe6 b7 Ka7 b8N Kb6 Na6 Ka5 b6+ Qb5 b7 Qb6 Qb2 a2 b8R Re4 Ra8 Rc4 Rc7 Qa4 Bb7 Rc3 Qb3 Bb5 Kb2 Rc4 Rc5 a1B+ Kb1 Be5 Qa2 Bb8 Kb2 Ba7 Bf2 Ng3 Rf1 h1B Bg1 Qd1 Rf3 Nf1 Rg3 Bf2 Rd3 Qe2 Rd8 Be3
1r1q1N1k/nb5r/R2BN1p1/K1n5/Q2r3r/n1B1Rn2/2NbB2b/Q2rQR2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 c4 a5 h4 f5 e4 Kf7 b4 d3 Kc3 f3 h5 d4+ Kb3 f2 Ka4 f4 h6 g6 h7 Kg7 c5 f3 e5 d2 b6 g3 c6 d3 b5 g2 e6 Nd7 c7 Bb4 e7 Bb7 c8R Rb8 e8Q Ne7 Be2 f1R Nh3 g1B Na3 f2 Ng5 Nc6 Nc2 Na7 Qe1 d1R Rc3 d2 Re3 Bh2 Bb2+ Bc3 Ra2 Rg1 Qe4 Rg4 Rf1 Rh4 Ba1 Rb1 Ra3 d1R Qc4 Rdd4 Ne6+ Kh6 Ra2 Bd2 Bc3 Rd1 Qb4 Rg8 Ra3 Rg7 h8Q+ Rh7 Ra2 Bc6 b7 Nc5+ Ka3 a4 b6 Be4 Qc4 Bd5 Kb4 a3 Ka5 Bg2 Ra1 a2 Qa4 Be4 Rh1 f1N Qe5 Rc8 b8N Bb7 Nd7 Ra8 Ndf8 Rb8 Rb1 a1N Rb3 Ng3 Rf1 Nge4 Ra3 Ng5 Q5g3 Qd6 Qg1 Nf3 Ra2 Bc8 b7 Qd8+ Nc7 Kg7 Ra3 Ra8 b8B Bb7 Qh1 Kh8 Ra2 Qg5 Nce6 Qf6 Bd6 Rb8 Rb2 Qe7 Rb6 Qd7 Ra6 Qe7 Nb4 Nc2 Qg1 Na3 Nc2 N3b5 Qg4 Qe8 Qa1 Na3 Qe4 Qd7 Qc6 Qe7 Qa4 Qd8+
2q2BQ1/qb1B1BN1/n1n1R1R1/2Q5/2qrKN1r/2bQ3N/k2r3p/q1R2n1n w - - 0 1 illegal: No possible last move, all moves rejected
1Q3q2/QNq1b1Q1/3nrNRB/rb5B/4R2K/1r1q2N1/nk3pBR/r3b1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 b6 a4 b5 h3 c5 h4 g7 a3 c6 h2 b7 f3 b6 a2 c7 f4 Bh3 d3 Qb3 Kd4 e5 d2 e6 d1Q e7 Na6 e8Q Qd3 b8R Bd7 c8Q Nf6 g8B Ne4+ Ke1 Be7 b7 Rh6 Qh5 Bb5 Qhf5 Nd6 Kf2 Qc7 Qce6 Nb4 Na3 Ra5 Qd7 Re6 Bg2 h3 Qa4 Kc3 Bf7 d4 Re8 Qcc4 b8N Qc7 Rb1 a1B Qe5 Na2 Nc4 Bb2 Ra1 Ba3 Bh5 Bb4 Qa3+ Kc2 Ne2 Be1+ Kf1 f2 Rg8 Qf3 Rg6 d3 Ng3 d2 Qg7 d1R Qd8 Qc3 Nd7 Rd3 Qb8 Qd4 Bd2 Rb3 Nf6 Qd5 Be3 Qe4 Ke2 Qd3+ Kf3 f1Q+ Kg4 f3 Kh4 f2 Qc5 Qg1 Qca7 Kc3 Bh6 Kc2 Ne5 Kb2 Nf7 Qgf1 Rg1 h1R Nd8 h2 Nb7 Qf3 Rc1 Q1d3 Rc4 Qff5 Re4 Qfc5 Bh3 Qa3 Rg2 Rg1 Reg4 h1Q Rh2 Rf1 Bg2 Qg1 Bg5 Qb4 Bd2 Qf4 Be3 Qh6 Re4 Qh8 Bg5 Qf8 Bh6 Bd2 Qf7 Ra1 Qg7 Be1
1b1kN1n1/2n5/1r1nbqB1/1RK4n/q2QpQr1/3qR1rB/1N1N2RQ/r5B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 e3+ Kd3 e2 c5 e1R g5 h3 c6 a4 g6 a3 g7 a2 c7 h2 b6 h4 f5 h3 b7 Ra4 b5 Rc4 b6 Be6 c8N Bd6 f6 Na6 b8Q Rh6 b7 Nc7 f7+ Kd7 f8Q Qf6 Qf7+ Kd8 Nc3 Rb4 Rb1 a1R Na4 Re2 Rb3 Rg2 Qd2 Rg3+ Nf3 Rb6 Qb2 Rhg6 Rg1 h1N Rg2 h2 Be3 R6g4 Nd2 e4+ Ke2 Qe5 Qf4 Qf6 Bg1 Be5 Rf3 d3+ Ke3 Bd6 Qd4 Be5 Nb1 d2 Nb2 d1Q Nd2 Qa4 Nd6+ Ke7 Qa7 Kd8 Ne8 Bd6 Bb5 Be5 Bd7 Bd6 Bc8 Be5 b8R Bd6 Qde5 d4+ Ke2 d3+ Ke3 Rb4 Qad4 Rb6 Nf1 d2 Qh5 d1Q Nd2 Ne7 g8B Qdc2 Bh7 Ng8 Bg6 Qc3+ Ke2 Qcc2 Re3 Qb1 Nd1 Qd3+ Ke1 Rh3 Ra8 Ba2 Qb4 Nb5 Nf3 Bb8 Ra5 Nc7 Rb5 Rgh4 Qd4+ Bd5 Qh7 Ng3 Bd7 h1N Qh5 Ra3 Nb2 Nf5 Qh7 Nd6 Qh8 Qdb3 Kd2 Ra1 Qh7 Qd1+ Kc3 Ng3 Bdf5 Qf1 Nd2 Be6 Qhh6 Nh5 Qh2 Qe2 Q6f4 Rg3 Bh3 Qa7 Kb4 Rhg4 Kc5 Qa4 Ndc4 Qf1 Nd2 Qd3
1b6/rqb3b1/kr1rRN2/2qQQ2b/n2p2RQ/Np4B1/1B1RN1K1/2n2b1B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 f5 a4 d5 e4 Kd7 c4 Kc6 h4 Kb6 e6 g5 h5 b3 a5+ Ka6 h6 b5 h7 b4 e7 d3 e8R d2 e5 b2 e6 f4 e7 f3 Na3 b1Q Qc2 d1R Nb5 g3+ Ke3 g2 Kf2 g4 c5 g3+ Ke3 f2 Kf3 Qb6 c6 Ra7 c7 Nd7 Qa4 Bg7 Ne2 g1B Bf4 g2 Rh4 Nh6 Rg4 Qc5 Ra2 Nb6 Na3 Nf5 Bg3 Bh2 Rd2 g1B Kg2 b3 Qf4 Nd4 Qe5 Bb7 c8Q Na4 Qd8 Qe4+ Kh3 Rf8 h8B Rf6 Bg2 Rb6 Bh1 Qh7+ Kg2 Bc8 Re4 Bg4 Rg8 Bh5 e8N Qc6 Qh4 Qc5 Bf4 Bg3 Nf6 B1h2 Re3 Bf8 Rg4 Qb7 Qd6 Bg7 Re6 Nc2 Be5 Nb4 Bb2 Na2 Qe5 Bh6 Bg7 Nc1 Bf8 Bg7 Bd6 Bf4 Qf5 Bfh6 Bg3 Bf4 Qe4 Bc7 Qe5 Rd6 Rc2 Rd4 Rd2 Rb4 Nc2 Kb5 a6 Ka5 Na3 d4+ Qd5 Rbb6 Qe4 Ra8 a7 Ka6 Qd5 Rad8 Qe4 R8d7 a8Q+ Qa7 Be5 Bb8 Kf3 Rd5 Qc6 Qa8 Qf5 Ra7 Kg2 Qb7 Bf4 Rd8 Qcd5 Bg3 Bh6 Bge5 Bf4 Bec7 Bg3 Rdd6 Qe5 f1B+
1r5q/b1qBNk2/QRq1N2Q/2n1Bp2/N2R4/2bnB1q1/r2pb2K/3qQ1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 f5 c4 h5 g4 a5 Kg2 d3 e4 a4 c5 a3 b6 a2 e5 d4 b5 f3+ Kh2 h3 b7 h4 c6 f2 b6 d2 e6 d3 g5 Bb4 g6 Nd7 b8R Ne7 b7 Bc3 g7 Nd5 g8N Nf4 e7 Kf7 c7 Nc5 Qe1 d1Q Be3 d2 Nf3 Nfd3 Nd4 Ra5 Bg2 f1Q Ne6 Qf2 Rg1 Bd4 Nc3 Qg3+ Kh1 h2 Bc6 Bd7 c8Q Qdc7 Na4 Ra6 Rb1 a1B Rb6 Bac3 Ra8 Ra7 b8B Ra5 Qb7 Bc8 Qa7 Ba6 Bd7 Bc4 Qa6 Bb5 Nb2 Ra2 Na4 Nf4 Qf2 Be2 Qe1 Nfd3 Ra7 Qc8 Be5 Qc7 Nf6 Rb8 Nd5 Ba5 Rab7 Bdc3 Rb4 Bb6 Rd4 Ba7 Rb6 Qg7 Qa5 Qh8 Kg2 h3+ Kg3 h1Q Qa6 Qf3+ Kh2 Qg4 Qh4 Qf8 Qh6 Qg3+ Kh1 h2 e8Q+ Kg8 Qe7 Qe8 Qeh4 Kf7 Ne7 Qh8 Rg4 Qf4 Qe1 Qg5 Kg2 h1Q+ Kg3 Qhc6 Kh2 Qg6 Rd4 Qg3+
kbB3n1/2rq4/2N2Bn1/p1RB1N1r/1p1n2bn/3q1QK1/R2Q4/1R2bQNn w - - 0 1 illegal: No proof kernel
q2rRq1Q/2QB1p2/1QprrNn1/2K4b/1B2b1N1/1N1bR3/5BRb/n2k3b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Ke6 e4 Ke5 b4 Kd4 g5 a5 g6 h5 e5 c6 e6 a4 e7 a3 e8R h3 b6 h4 b5 f3 b7 a2 b6 c3 g7 c2 Rh2 Ra5 Ba3 c1R Rg2 h2 Qb3 h1B Bb4 Re5 Nh3 Na6 b8B Re6 b7 Bd6 Ba7+ Nc5 b8Q Ne7 g8N Rd1 Nf6 Bh2 Qc7 Ng6 d3 Qd6 Nd2 Qf8 Rc1 a1Q Rc3 Qa6 Qb2 Qb7 Qb6 Qa8 Nb3+ Ke5 Ke3 f2 Be2 f1B Nf2 h3 Bg4 Ba6 Qa1 Be2 Bf5 Bh5 N2g4+ Kd6+ Kd4 Rg8 Re2 Be4 Rcc2 Rh8 Re3 Bc4 Rg2 Rd2 Kc3 Rd1 d4 Bcd3 d5 Rh6 Nf2 Ke5 d6 Kf4 Kd4 Rh8 d7 Rh6 Re1 Kf3 d8Q Rh8 Qdc7 Rd2 Reg1 Ke2 Rg3 Rg8 R1g2 Rd1 Qc3 Rd2 N2g4+ Kd1 Re3 Rh8 Qb2 Rh6 Kc3 Rd6 Bd7 Re6 Nc1 Nb3 Qa1 Rh8 Qb2 Na1 Kd4 Bg1 Nb3 h2 Qc3 h1B Qb2 Bh2 Qc3 Rd6+ Kc5 Rb2 Nh7 Rg8 Qh8 Re2 Nhf6 Qh6 Re6 Rd8 Re8 Qf8 Bb8 Bb1 Rh3 Bf5 Qcb7 Ree6 Re3 Rd4+ Bd6 Bbd3 Q7c7 Qh6 Bf4 Rdd6 Bg3 Bfe4 Bf2 Qf8
r1Q5/bRNq1b2/4Brn1/R3K1Qb/2R1p3/pBN1n1Q1/1krn3B/1N1bq3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 a5 g4 d5 b4 h5 f5+ Ke5 b6 e3+ Kd3 a4 c5 a3 g5 e2 b7 e1Q f6 h3 g6 h4 c6 h2 b5 h3 c7 Rh6 b6 Na6 b8Q Nc5+ Kc2 Qd7 b7 Ne4 Kd3 Nd2 Kc2 d3+ Kc3 e6 g7 Ne7 g8Q Ng6 f7 Bc5 f8N Ba7 Qb3 Ke4 Ra2 e5 Rc2 Ke3 Ne2 e4 Rg1 h1R Ne6 h2 Rg5 Rg1 Rh5 h1B Qd8 Bf3 Qg5+ Nf4 Bh3 Rf6 Bf5 Rg4 Bg6 Rg2 Bf7 Kf2 Qc4 Ng6 Qc5+ Kf1 Kd4 Rf2 Rc4 Bg4 Rh4 Bh5 Nec3 Rg2 Qg3 Rh2 Rg4 Rhf2 Rg5 Rh2 Na2 Ke2 Re5 Kd1 Nac3+ Kc2 Rg5 Nf1 Bf4 d2 Re5 d1N Rg5 Nh4 Ke5 d4 Qe7 d3 Rf5 Rh6 Qeg5 d2 Bg8 Rf6 Bf7 Qd3 Bg8 Bd7 c8B Bde8 Nc7 Bef7 Be6 Qd7 Qc8 Nde3 b8R d1B Rb7 Re2 Qf3 Kc1 Bh2 Rc2 Qfg3 Nd2 Kf4 Rh6 Ra5 Rf6+ Ke5 Qe2 Rc6 Qe1 Bb3 Kb2 Rc4 Bfg6 Bd5 Bf7 Be6 Ng6+
3qQ3/r1kN1Bnr/2b1rq2/bnrp2Qp/2R3R1/BQ6/N2B1R1n/1K2N2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 c4 f5 Kc2 h5 g4 f3 e4 f2 b4 d6 b6 Kd7 g5 h3 b7 h2 e5 f4 c5 a4 g6 a3 e6+ Kc7 b5 f3 c6 a2 e7 Rh7 e8Q Be7 g7 Nf6 g8Q Ra7 Ba3 Na6 b8N Bb7 Bc4 f1Q Nd7 f2 Bf7 d5 Nc3 Bb4 Qg5 Ba5 Nf3 d3+ Kc1 Ba8 Rg1 h1Q Rg4 d2+ Kb2 Bb7 Qb3 d1R Ne1 Rc1 Rb1 a1R Na2 Rc5 b6+ Kc8 c7 Bc6 Rd1 Kb7 c8R Nc7 Rd2 Nb5 Rc2 Rd1 Re2 Rd4 Rd2 Re4 Kb1 Re6 Rc2 Qe2 Rb2 f1N Rd2 Qef3 Rf2 Nh2 Rc7+ Ka6 b7 Qf4 b8B Qe5 Rc8 Kb7 Bc7 Qd4 Bf4 Qc3 Qeg8 Ne8 Bd2 Ng7 Qe8 Qcf3 Rb8+ Kc7 Rb6 Nd4 Rb4 Nb5 Rbc4 Qff6
1Qr1B1Q1/R7/2rKBp2/bq1nR1NN/b1b1Qn2/k1rpR3/1N6/B2n1qr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 a5 e4 h5 g4 d5 b3 f3 g5 f2 b6 d3 g6 a4 g7 h3 c5 h4 c6 h2 c7 d2 b7 a3 Qg4 d1N Nh3 d4 Bb5 f1Q Ng5 a2 Nc3 d3 Na4 h3 Be8 Ra6 Bb2 Ne7 g8Q Be6 c8B Bc4 Be6 Rc6 Bc3+ Ka3 b4 Qb6 b5 Qa5 Nb2 Nd5 b6 Na6 b8Q Nc5 b7 Qb5 Rg1 h1R Rg3 h2 Re3 Rg1 Qf5 Rc8 Bd4 Bg7+ Kd6 h1B e5 Rh6 Qfh7 Bf6 Qe4 Bd8 Bc3 Nf2 Rae1 a1R R1e2 Rc1 Re1 Rc2 Ra1+ Kb3 Ra7 Nd1 Qh4 Qb6+ Bc6 f6 Bg4 Rh7 e6 Qa6 e7 Bg2 e8N Nc7 Ng7 Be6 Qa8 Ka3 b8R Ba2 Be5 N5e6 Rb5 Bgd5 Bc3 Bdb3 Qb8 Ba4 Rbe5 Nd5 Nh5 Qb5 Be8 Rhc7 Bf5 Bb3 Qe4 Nef4 Be6 Bc4 Bd4 Nf2 Nd1 Rc6+ Kd7 Rc1 Ba1 Rc3 Nb2 Bc7 Qf5 Ba5 Qe4 R6c7+ Kd6 Nd1 Nh7 Rc5 Ng5 R5c6+
RB1q3k/Q2b1rnb/1R1p2nQ/1Kq1B3/B3nNN1/r1Q4b/N2b3p/q3R3 w - - 0 1 illegal: No possible last move
n3K2k/R1QnB2b/7N/BN1NrbrB/2pb4/b3n2Q/1p1Q2qR/R1b2b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 a4 Kf7 e4 c5 d4 g5 h4 Kg7 e5 b5 d6 f3 Ke3 f2 d7 c4 d5 f4+ Kd4 b3 d6 b2 Kd5 b4 Ke6 g3 a5 g2 a6 f3 a7 g4 h5 b3 h6+ Kh7 Kf7 g3 e6 Qf6+ Ke8 Qg5 d8N Na6 d7 Ba3 Be2 f1B e7 f2 Nc3 b1B Nh3 g1B Nf7 g2 d8B b2 Nf4 Bcf5 Qd2 Bh2 Bd1 g1B Nfd5 Bf4 Bh5 Qg2 Rh2 Bbc2 Nb5 Nc7+ Kf8 Rc8 a8R Bce4 Ra6 Na8 Ke8 Rc5 Ra7 Be3 Ba5 Bg5 Kd8 Nf6+ e8Q Rg8 Qf8 Rg6 Qd6 Nd7+ Ke8 Bf4 Qb8 Rg5 Qc7 Kg8 h7+ Kg7 Nh6 Kh8 Qe1 Bed3 Bcd2 Be3 Bdb4 Bc1 Qd2 Bb1 Ndc3 Re5+ Be7 Be2 Qc2 f1N Nd5 Bd4 Qd2 Ne3 Nf7+ Kg7 Bg4 Bf1 Bd1 Bfc2 h8Q+ Kg6 Qh4 Kg7 Qh3 Bh7 Nh6 Bbf5 Bh5 Kh8
1n1R4/b1b2b1k/KN2B3/p5B1/rNr1bbB1/QR2Rnp1/1rq1Q3/1N3Q1b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Kg6 h4 d5 b4 e5 c4 e3 Kd3 g3 b6 e2 b7 e1B b5 g2 f5+ Kh7 c5 g5 c6 g4 h5 g3 c7 Bd6 b6 Nf6 h6 Ng4 f6 Be6 c8B Ba5 f7 Qc7 f8R Bf7 Nh3 g1B Qe2 Nh2 Be6 Nf3 Nf4 Rg8 Rh5 Rg4 Ra3 Bd2 Rb3 a5 Ng2 Bf4 Rd8 Qc5 Rh2 Bc7 Ne3 Ra6 Nc4 e4+ Kc2 d3+ Kc3 d2 Bh3 Rh4 Bhg4 d1B Rh1 Bf2 Re1 e3 Kd3 d4 Qf1 Kg6 h7 e2 h8Q Bg1 Qe8 Kh7 Qa4 Ra8 Qa3 Bge3 Ke4 d3 Bd2 Bf2 Bc1 d2 Kd3 Bc2+ Kc3 Nc6 b8N d1B b7 Be4 Na6 Rc8 Nb4 Nb8 Be3 Qf5 Nb6 Bdc2 Kc4 Rh2 Red1 e1R R1d3 Rh4 Bc1 Re2 Re3 Bd5+ Kc5 Bce4 Kb5 Rb2 Qe2 Bcd6 Bd2 Rc4 Qf1 Bc7 Bc1 Nd7 b8Q Qg6 Qc8 Nb8 Qd7 Ba8 Qdd1 Bab7 Qde2 Bbd5 Red3 Bc5 Re3 Ba8 N6d5 Ba7 Nb6 Beb7 Rg8 Bfe5 Nc6 Rc3 Rd3 Nh2 Bf3 Ra4 Rgd8 Rcc4 Bg5 Bf4 Re3 Qc2 Nb4 Bd5 Bfg4 Bh1 Rd4 Nf3 Rd8 Nd7 Ka6 Bd5 Red3 Be4 Re3 Nb8+
4NR2/1RBb1N2/k1q1bKp1/n4n2/3NQQ2/1nrb1p2/1b4QB/bB1r1Rn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 b4 d5 c4 Kd7 e4 Kc7 h4 Kb6 h5 a5 c5+ Kb7 h6 g6 c6+ Ka7 c7 d3 b6+ Ka6 h7 g3+ Kf3 d4 b7 g2 e5 a4 e6 a3 e7 a2 e8Q Nc6 b8B Qd6 Qc2 Bg7 Ne2 d2 Nbc3 d1B Nd5 d3 Nf6 d2 Qee4 Nh6 Ne8 Bb2 Rb1 Be6 c8R a1B Bc7 Na5 Rg1 Rf8 h8N Qc6 Nf7 Rg8 Rd8 Rc8 b5+ Ka7 b6+ Ka6 Qc3 Bc2 b7 d1B b8Q Bd3 Qd2 Ba4 Nd4 Rg7 Be2 Rh7 Rf1 g1N+ Kg2 f3+ Kg3 f4+ Kh4 f2 Kg5 f3 Kf6 Nf5 Qg5 Qc2 B1f4 Bad7 Qg2 Rh1 Bh2 Qc6 Bd1 Bc1 Rb7 Bcb2 Bcg3 Rc7 Bc2 Rc8 Bb1 Rc7 Rc1 f1N Be5 Nd2 Rf1 Rc8 Bc7 Ndb3 Bb6 Qb5 Qbf4 Rc3 Bc7 Qc6 Ned6 Nc4 Rf8 Nca5 Ne8 Nh3 Rf2 Rd1 Rf1 Ng1
2B2n2/r4N2/1K1b1rkq/BQ1p4/n1Q4b/2rR3p/QBRqN1N1/4bbrR w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 h5 g4 a5 b4 e5 c4 d5 c5 e3+ Kd3 h3 b6 a4 f5 h2 f6 a3 g5 h4 c6 e2 b5 e1B b7 a2 b6 h3 c7 Be7 g6+ Ke6 g7 Kf7 Qc2 Rh4 Ne2 Na6 b8Q Bd6 b7 Qf8 Nd2 Rh6 Qc4 Bh4 Qa7 Kg6 b8Q Ne7 g8N Bg4 Rb1 a1R c8R Ra3+ Rb3 Qg7 f7 e4+ Kc2 e3 Kd3 Bd7 f8B Bb5 Bb2 Qf6 Nf3 Nc5+ Kc2 Qf4 Ne1 d3+ Kc3 d2 Kb4 d1Q Rd3 Rc3 Ka5 Qd2 Kb6 Qf6 Qa6 Ra7 Qaa2 Qh8 Ng2 Ba6 Nc1 e2 Rc7 e1B Ne2 Rh7 Rc6 Rf7 Nh6 Rf6 Nf7 Qhh6 Rc7 Kf5 Qe8 Ng6 Be7 Nf8 Bd8 Kg6 Qeb5 Qdg5 Nc1 Qe3 Be2 Qf2 Bg4 Qe2 Bc8 Qed2 Rg1 h1R Ne2 Beg3 Rc1 Be1 Rc2 Rg1 Re7 Qh7 Ree3 Qh8 Rf3 Qh5 Rf1 Qhh6 Qbb4 Be7+ Ka5 Bhf2 Qh4 Qg7 Nd4 Ne4 Re3 Qh6 Qb7 Bd3+ Qa6 Be2 Rd3 Rh1 Kb5 Bd6 Ba5 Nc5 Kb6 Bfg3 Qb5 Bgf2 Rg1 Bf1 Ne2 Bfg3 Qhb4 Bh4 Q4c4 Rh2 Ne3+ Rg2 Rh1 Rg1 Ng2 Na4+
r2Nn2b/Q3KBkb/1Nn1pRpn/b1pq2r1/1bQ1RB1R/1QN5/8/2Bb4 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 b5 Kd4 c5+ Ke5 e3 d4 e2 f4 e1B a4 g6 Ra3 g3 h4 b3 h5 b4 f5 g2 f6 b2 a5 b3 d6 Bb7 d7 Nh6 d5 Bc6 d6 Ba4 a6 Bg7 a7 Rf8 Nf3 g1B Nfd2 Bgf2 Nc4 Ng8 h6 Ba5 h7 Be3 h8Q Bed2 Qh4 Bdb4 Nb6 Nh6 Bd3 Kg8 Ke6 Nc6 Bc4 Bh8 f7+ Kg7 Qhg4 Re8 f8R Rb8 a8Q Rc8 Qa7 Ra8 Rf6 Rf8 Rf4 Rf5 Rh4 Rh5 Ra2 Rg5 Nc3 b1N Rf6 Na3 Re2 b2 Qgd4 b1B Ree4 Ba2 Bb3 Qc7 d8B Nb5 d7 Nd6 Qc2 Qc8 Bc7 Ne8 B7f4 Qd8 Bd5 Bc4 Qb2 Bd1 Qb3 Qb8 d8N Qe5+ Kd7 Qf5+ Be6 Bd5 Qdc4 Qe5 Bh3 Bg8 Be6 Bh7 Bg8 e6 Bf7 Nb8+ Ke7 Qf5 Nb1 Qd5 Nc3 Nc6+
2RR1BbQ/1kq1bN2/2rn2Q1/3r2pB/1b1bbp2/1n2Q1N1/1B1qp3/R3K1N1 w - - 0 1 illegal: No possible last move, all moves rejected
1N2b1r1/Qn4nR/2r1q2b/pK2qpRB/4k3/N1Rp2B1/1Nb2Q1B/n3b1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 e4+ Ke5 h4 a5 b4 f5 b6 g5 h5 d5+ Kb5 f3 c4 d3 c5 d4 b7 f2 h6 g3 h7 d2 c6 g2 c7 d3 Ne2 g1B Na3 g4 Nc3 g3 Na4 g2 Nb2 Bh6 Be2 f1N Bh5 Nc6 b8Q Ra6 Qa7 Bd7 c8R Nf6 Qc2 d1B Qcf2 Rf8 h8B Bc2 Rh3 Qe7 Bf4+ Ke6 e5 Kd5 e6 Nd8+ Rc6 Ke4 Bh2 Ne8 B8e5 Ne3 Beg3 Rg8 Rd1 Qf6 e7 Ng7 e8Q+ Qe6 Qg6 Nb7 Rc1 Be8 Rd1 Bf7 Rc3 Rc6 Rh4+ Kd5 Rg4 Be8 Rg5 Ke4 Rc1 Bb3 Rd1 Nc2 Rd2 Na1 Rd1 Qf6 Rd2 Bc2 Re2+ Kd5 Re7 Qe5 Rf7 Ne6 Rh7 Ng7 Rc4 Qe6 Rc3 Ke4 Qf4+ Kd5 Qf6 Bb6 Ka6 g1Q b5 Rd6 Qf1 Bf2+ b6 Rc6 Kb5 Nd8 b7 Be1 b8N Qge3 Qg1 Nb7 Qf8 Qd4 Qfc5+ Ke4 Qcb6 Qdf6 Qbf2 Qfe5+
1r1Bk3/3p4/nr6/1R2bB2/B1RQ1rq1/1brpKp2/Q1qnNN1N/Q1Rq4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 h5 e4 a5 c4 f5 b4 f3 g4 h3 b6 h2 g5 a4 e5 h4 g6 f4 g7 a3 c5 h3 b5 a2 c6 Qe7 c7 Ra6 Nd2 Rh5 b7 Qg5 b6 d3 e6 Nf6 e7 Kf7 g8Q+ Ke8 Be2 Qg4 Nf1 Rb5 Qe1 Ra8 Bd1 Na6 b8Q Rb3 Qc4 Bg7 b7 Ra3 Rb1 a1R Rb4 Rb1 Qd4 Rc3 Ba4 Rbb3 Ba3 Bh8 Qa1 Ne4+ Ke1 Be5 Kd1 Nec5 Kd2 f2 Bc1 Kf7 e8B+ Ke7 Bg6 Rb1 Bf5 Ke8 Ne2 Rbb3 Neg3 Rb1 Rg1 h1Q Ne2 Qd5 Ba3 h2 Bc1 h1R Nh2 Qb3 Rd1 f1Q Ba3 Rg1 Rc1 f3 Ke3 Qg7 Qa2 Rg4 Qa1 Rf4 Qa2 Rc2 Qda1 Qg6 Qa7 Qg4 b8R Ne4 Q7d4 Nd2 R8b6 Bb7 c8N Bd5 Nd6+ Kd8 Ne4 Rb8 Rb7 Qd1 Nf2 Ke8 Rc7 Rc4 Rbb7 Be6 Be7 Rc3 Bd8 Qbc2 Rc8 Rb5 Rc6 Bb3 Rc4 Rc5 Rbb4 Rc6 Rb5 Rcb6
3q2Qr/pn1q1n1R/bN2N1N1/4Q1pq/4p1r1/n4R1B/q2QRB1B/2b2K1k w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 b4 Kg6 h4 Kh5 c4 e5 c5 d5 c6 g5 f5 e3 b6 d3 b7 e2 c7 e4 f6 g3 b5 Kg4 b6 d4 h5 g2 h6 Kg3 f7 Na6 b8B Be7 f8R Ba3 b7 Nc5 h7 Nh6 Ra2 Nf7 Nf3 g1Q Nc3 Qh2 Be3 Bc1 Na4 Qh5 Ne5 Qd5 Rb2 Qa2 Ng6 Kf3 Rh4 Kg3 Bh3 Kh2 Nf4 Kh1 Nb6 d2+ Kf2+ e1N Ne6 d3 Kf1 Nc2 Bf2 Na3 Qc2 Nh6 Rf3 Nf7 Qc3 Rf8 h8N d1Q+ Qe1 d2 Ng6 Qa4 Rc2 d1Q Re2 Qd8 Qd2 Bd7 c8Q Bb5 Bbg3 Ba6 b8Q Qad7 Bh2 Nb7 Qe5 Rh8 Qc4 Rc8 Qcd5 Rc3 Qb3 Qg4 Rh7 Qh5 Rf5 Rg3 Rf3 Rg4 Qc4 Qf8 Qc8 Qfe7 Qg8 Qed8
RbK3q1/p1pr1R2/N1n2BbQ/rn2p1r1/4n1Bq/3R1N2/1QQNn3/3B3k w - - 0 1 illegal: Other
B2q4/KRp4r/1Q1Q4/B2pb2Q/b1Nbr2q/Bn2N2R/3p1n1p/kq1RN3 w - - 0 1 illegal: No proof kernel
b3KBNb/pq2p3/r1rR1p1B/1Bk1n1bQ/1q2Q1nN/3n2Q1/2p2R2/R6N w - - 0 1 illegal: No proof kernel
4K2R/1pBN1r2/1np2Q1r/2pbb1N1/2R1q2Q/3B2bQ/1qpkB1nb/R5N1 w - - 0 1 illegal: No proof kernel
2Rr1b2/2NR4/2nq1r2/3n1p2/pRB5/K1Q1Nn2/B1bnnB2/q1k1NRR1 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 g5 h4 gxh4 c4 e5 cxd5 exf4 axb5 c5 Ra5 cxb4 Ra6 Qg5 Ra1 Qd8 d4 Ke7 Kd2 Kf6 Kc2 Kf5 Kb2 Ke4 g4 h5 b6 a5 g5 f5 g6 h3 g7 h4 d6 h2 d5 b3 d7 h3 d6 a4 b7 f3 Qd3+ Ke5 e4 f2 Ka3 b2 Nd2 Kf4 e5 Ne7 g8B Ra6 e6 Nbc6 b8R Nd5 e7 Bb7 e8N Ba8 Qc2 Ke3 Bc4 f1N Ngf3 Rb6 Rg1 h1N Ba2 h2 Nc7 Nhg3 Ne1 h1Q Qc3+ Ke2 Rc8 Kd1 Nc4 Ne2 Be6 Qe7 d8R Nd2 Rd7 Nf3 Rb8 Ra6 Rb4 Rg8 Be3+ b1N+ Kb2 Rb6 Bf2 Bb7 Rd8 Ra6 d7 Qd6 Rc8 Rb6 d8R Ba6 Na3 Bd3 Nc4 Bc2 Rd7 Qh8 Bb3 Qg7 Ka2 Kc1 Ne3 Be7 Bc4 Rd8 Bg8 Bf8 Ne6 Qh2 Qe5 Nc7 Bd3 Na5 N1g2+ Kd2 Bb5+ Rd6 Kb2 Nc6 Ba6 Nd5 Nc7 Nf6 Ba2 Nd5 B6c4 Rh6 Qf6 Qd6 Qe5 Nbc3 Raf1 Ne4 Ka3 Re6 Ne1 Kc1 Bb5 Ned2 Bbc4 Qf6 Qd4 Qfe5 Qd3 Qa1 Qc3 Rf6
bN2KnB1/1qk1p3/1bq5/2B1p2n/1NR2bN1/4r1rQ/2B2N1n/1RN2Rn1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 d5 cxd5 f6 e5 fxe5 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 c5 Ke4 h5 Kf5 b3 Kg6 c4 Kf7 h3 g4 h2 d4 c3 f4 b2 f5 h4 d6 h3 g5 c2 f6 Bg7 b6 Bh6 g6 Bg5 d5 Bf4 g7 Bh6 b7 Ra3 Bd3 Be3 Qf1 Ra7 Nd2 b1Q Ba3 c1B Nb3 Bcd2 Nc1 Bb6 Bc5 Qc7 Bc2 Qc6 Ra4 Bf4 Rc4 Ra3 Qg2 Kd8 d7 Kc7 d8N Nd7 b8N Re3 Ke8 Bb7 f7 Ba8 f8R Nh6 g8B Ng4 Nf7 Rh5 Nh6 Rg5 Nd3 Rg6 Ne2 Qb4 Rf1 h1N Nec1 h2 Nf2 Ng3 Qh3 h1N Rd1 Nh2 Nhg4 Nh5 d6+ Kc8 Rf7 Nf8+ d7+ Kc7 Rf1 N1g3 Rg7 Qh1 d8N Ne2 Ndc6 Ng1 Rf7 Qc3 Nb4 Qb7 Rf6 Ba5 Ra6 Bb6 Ra1 Rg7 Rb1 Rg5 Nf6 Rg2 N6g4 Rgg3 Ba4 Qc2 Bb3 Qce4 Bc2 Qec6+
3k1BQK/4p2n/4q3/pq1b1B1R/2N3pq/RrBNn1R1/Bqq2B2/1N2n3 w - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 d4 fxe4 a4 bxa4 h4 c5 f5 cxd4 g5 Ra6 Nf3 Rf6 gxf6 g5 Ng1 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qb6 Ke2 Qc7 Ke1 Qd8 Kf2 h5 Kg3 d5 Kh4 e3 c4 d3 b4 e2 b5 e1N f7+ Kd7 f8R d4 g6 d2 Kg5 d3 g7 h4 Kg6 a3 f6 a2 b6 h3 f7 h2 c5 Rh5 b7 Qb6+ c6+ Kc7 Nh3 Rh7 Qb3 d1Q Nf4 d2 Bb2 Nd3 Bc3 Nh6 g8B Ne1 Bd3 Qe2 Bf5 d1Q Nd3 Be6 Rd8 Qec2 f8B Nd7 Bf7 Rh8 Kg7 Qde2 Qc4 Qb5 b8B+ Kb6 c7 Nf6 Bg8 Bd5 c8N+ Kb7 Ba7 Qe6 Bf2 Nh7 Rg1 h1Q Rg3 Qh4 Bf7 Kb8 Nb6+ Kb7 Qb3 Kc6 Nc4 Kc7 Rc8+ Kd7 Rc5 Kd8 Bg8 Nf7 Nb6 Nd6 Bf7 Nc4 Bg8 Ne3 Nc4 Ng5 Bf7 Rh6 Kg8 Nh7 Kh8 Bg2 B5g6 Bh1 Rh5 Bd5 Bf5 Qe4 Qa3 Rb6 Qc5 Qe6 Qd6+ Qed7 Qg6 Qe6 Qg8 Qbc6 Nc5 Rb3 Nd3 Qb5 Nba3 Qed7 Bf6 Bf3 Nd6 Rb2 Bc3 Qc8 Bb3 Qe6 Ndc4 Bh1 Rd1 a1Q Rd2 Qcd1 Nb1 Bd5 Re2 Ra2 Rd2 Ra3 Ra2 Qb2 Ra1 Qdc2 Ra2 Ra4 Ra3 Rb4 Ba2 Rb3
6N1/NN1NKqnr/R5p1/2nr2RB/p7/Bk1BN2p/n2q3n/Q1Rn3r w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 a5 f3 a6 bxa6 Qd2 a5 Qd1 a4 h3 f5 h4 g6 h5 f4 h6 Bg7 hxg7 Ba6 Ra3 Bd3 Ra1 Bf5 gxf5 Qg5 Rh2 Qe7 Rh1 Qd8 Kf2 Ke7 b4 Kd6 e4 a5 c4 h5 b5 Kc5 e5 Kb4 f6 d5 b6 a3 e6 d3 e7 h4 e8N d4 c5 d2 b7 a2 c6 h3 c7 d3 c8B Qd5 f7 Ra7 f8N Ra6 Bg4 Ne7 g8N Qg5 Bh5 Rd6 Na3 Nf5 Nc4 Rh7 Ne2 Ng7 Nd7 Na6 Nc3 Rd5 Ned6 Nc5 Ne3 a4 Ncb5 Qh6 b8R Qg5 Qe1 Kb3 Nb7 d1R Re8 d2 Ba3 Qd8 Rc1 a1N Bd3 Nc2 Qg1 Nb4 Re6 Na2 Na7 Re1 Ra6 Qa5 Qf1 d1N+ Kg1 f2+ Kh2 f3 Kg3 Qc3 Kg4 Qd2 Qg1 f1Q Kf4 Rd4+ Ke5 f2 Kf6 Rd6+ Ke7 Rd5 Bb1 Qc4 Bd3 f1N Rh2 Qf4 Rg2 Nh2 Rg5 Qc4 Qh1 Qf4 Qf1 Qc4 Qf6 Rh1 Qe5 Qf4 Qa1 Qf7+
q5NN/r1B1R3/B2n4/pn2NR2/Kb2pp1n/n2qp3/QR1p3B/2kN1N2 w - - 0 1 illegal: No proof kernel
rB2B1Q1/1KN1N3/nn1k1n2/N1b2R2/1brN1N1r/1rR1q2r/3Rr1b1/3B1q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 f5 Kc4 a5 Kc5 d5 e4 h5 g4 f3 c4 d3 b4 h3 e5 h4 b6 d4 e6 f4 b5 d2 g5 f2 g6 h2 b7 h3 g7 a4 b6 d3 Qe2 d1N Ra2 a3 Nc3 d2 Nb5 f3 Nc7 Na6+ Kc6 Ne3 b8N d1R c5 Rh4 b7 Rc4 Rd2 Nf6 g8R a2 Rg5 a1B Rf5 Qd3 Bb2 Nd7 Be5 Nd5 Qe1 Qe4 Be2 f1R Qg3 f2 Qg8 Rb1 Bd1 Rb3 Ne2 Re1 Nf4 f1Q Rg1 h1R Rg3 N7f6 Rc3 Ndb4+ Kb6 h2 c6 Bb2 Ne8 Ba3 c7 Bd7 c8N+ Kd8 Rdc2 Bc6 Nc7 Re2 Ne7 Qd3 Rd2 Bg2 Nb5 Ke8 Nbc6 Qe3+ Ncd4 Kd8 b8N Nbd5+ Kb7 Bb4 Bd6 Nb6+ Nbc6+ Ke8 Bb8 Bc5 Nc8 Bb4 e7 Kd7 Nc7 Bc5 Na7 Kd6 e8B Rg1 Nfd5 h1R Na5 Rh3 N7c6 Rgh1 Nce7 Rh4 Rcc2 R1h2 Rc3 R2h3 Rc1 Bg7 Nde6 Nfd7 Rcc2 Bc3 Nd4 B3b4 Rc3 Rf3 Nf4 Nf6 Ba4 Rfh3+ Bc6 Nfd5 Be8 Nf6+
b5b1/2R3q1/1r2n1R1/R2K1RBB/rn1nn3/7N/1BqbRQrq/1q1kN2N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kc4 b4 h5 e3+ d3 g5 f5+ Ke5 a5 g6 d5 c3 h3 g7 h2 b6 d4 b5 a4 e4 a3 b7 f3 b6 f4 Bb2 h4 Bh3 a2 Ne2 d2 Qf1 Kb3 c4 Kc2 c5 d1Q c6 d3 c7 f2 Nbc3 f3 Bg4 h3 Bh5 d2 Nc1 Bb4 Qg2 f1N Ba3 f2 Nd5 Qe7+ Kd4 Nd7 b8B Nc5 b7 Ra4 e5 Rh6 e6 Ng3 Nd3 f1Q Bb2 Nge4 Rg1 h1Q Qf2 h2 N5f4 Qd7+ Kc4 Ne7 g8N Nc6 e7 Ne6 e8R Qg7 Rg6 Qde2 Kd5 d1R Rf8 Rd2 Nf6 Qb1 Nh3 Kd1 Ng4 Qg1 Ba7 h1B b8R Qh2 Rf5 Rc2 Bad4 Bd2 Bf6 Bb7 c8R Ba8 Ne1 Qd3+ Bbd4 Rb2 Rb5 Qc2 Ra5 Rb6 Bb2 Bg2 Rgg5 Rg6 Rc7 Bh1 Ne5+ Bf3 N5d3 Be2 Rg1 Rg2 Bg5 Bf3 Nc1 Bg4 Ne2 Bf3 Ng3 Bg4 Rf3 Bf5 Nh1 Bh7 Bf7 Bg8 Rf5 Qbc1 Rb1 a1N Bg6 Nb3 Bh5+ Rg4 Ra1 Q1b1 Ra3 Nbd4 Re3 Qh7 Re2 Qe7 Rg3 Qg7 Rgf3 Rg1 Rf6 Rg4 R3f5 Rg2 Rg6 Nb4#
b1NNbnN1/1B1B1n1K/1q5b/b1p1nq2/1k1b4/NN3r2/RRQ4q/R3r1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 h5 b3 f5+ Ke5 a5 e4 f3 g5 f4 g6 a4 d3 f2 b6 h3 b7 f3 g7 c3 Ra2 h4 Kf4 a3 Rd2 c2 e5 h2 e6 a2 Kf5 a1B Kg6 h3 e7 Bd7 e8B Nh6 g8N Nf7 Ne2 Ra3 Nd4 Nc6 Be2 f1Q b8N f2 Bf3 Rh5 Bb2 Bh6 Kh7 Ne7 Nbc6 c1B Na7 Re5 Nc8 Ng6 Bc3 c6 Ra2 Bcd2 Qc2 Re2 Rg1 h1Q Be4 h2 Bg2 Ra4 Na3 Rc4 Bb2 Rc3 Bc1 Be1 Be3 Qc7 Bd5 Qh3 Bg2 f1N Bf3 Nd2 Bf2 Re4 b4+ Kd5 b5 Kc5 b6 Qf5 b7 Nc4 b8R Nce5 Rb4 Qb6 Rf1 Qg2 Bg1 h1B Rb1 Qh2 Nb3+ Kb4 d4 c5 d5 Ka4 d6 Rce3 Qe2 Ba5 Qc2 Bd4 Rbb2 Kb4 Rfa1 Re1 Bg2 Rf4 Be4 Bc6 d7 Ba8 Bb7 Bc6 d8N Rf3 Bd7 Bb5 Be6 Be8 Bd7 Nf8#
RRqRq3/p4k2/n1q2N1b/3n1rq1/rrB3qB/n2N1Q2/R3K1bN/B2R4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 h5 g4 d5 c4 f5 b4 d3 e5 h3 g5 d2+ Kf2 h4 c5 f3 b6 h2 b7 f4 g6 h3 b5 d4 e6 d3 b6 Rh4 e7 Bh6 c6 Nf6 g7 Kf7 g8R Na6 e8R Nd5 b8B Bb7 c7 Qc8 Qe2 d1N+ Ke1 N1e3 Rd8 Nc4 Bb2 Na3 Nc3 f2+ Kd2 Bc6 b7 f3+ Kd1 d2 Ne4 Rg4 Nc5 Rf4 Ra2 Ra4 Rd6 Qe8 Ba1 Qc8 Qe4 Qe8 Bc4 f1Q+ Qe1 f2 c8R Qd3 Qf1 Qg6 Rdd8 Qg5 Bg3 Rb8 Qd3 f1Q+ Be1 Qff4 Bh4 Qfg4+ Nf3 Q4f5 Rg1 h1Q Nh2 Qhg2 Qe2 Q2g4 Nd3 Qfe6 Qf3+ Qef5 Nf1 h2 Rh8 h1Q Nh2 Ke6 Ke2 d1R Rg8 Rb1 Rf1 Rbb4 Rd1 Ra8 b8N Kf7+ Be5 Bb7 Nd7 Rb8 Nf6 Qfe6 Rc6 Qc8 Re6 Bc6 Ba1 R8b5 Rh8 Nb6 Rg8 Rf5 Rh8 Be4 Rg8 Nd5 Rb6 Qhg1 Rb5 Qgc5 Rb8 Q5c6 Ra8 Qc8d7 Rdb8 Qec8 Rd8 Qe7 Re1 Qee8 Rd1 Qh3 Qf2 Bg2+ Qe3 Qed7 Qf4 Qhg4+ Qf3 Qe8+
5rQR/Rb1Bn3/1K6/R1q1nR2/p2k2bN/B1nN3n/1n1r4/1R1NbBrn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 a5 b4 h5 e4 d5+ Kd3 f5 c4 h3 b6 h4 g5 f3 g6 f4 b7 f2 g7 f3 c5 h2 b5 h3 c6 Nd7 b8R Qb6 c7 Qc5 b6 Bb7 c8B Ne7 g8R a4 Rg7 Rh6 Ba3 Rd6 Rf7 Bh6 Qb3 Bd2 Nc3 Be1 Ra2 Bc6 Nd1 Bb7 Bg2 f1N Rf2 Nd2 Bf1 Nb1 Ne2 Nc3 Nc1 Ra5 Rg1 h1N Ra8 h2 Ra6 Rb5 Ra5 Rg6 Qc4 Rb2 Rh7 Rc2 Rh8 Rg8 Rg7 Rf8 Qa2 Nf6 Bd7 Ng4 Re2 f2 Rf7 Bc6 b7 Rb2 b8R Bb7 Re3 Re2 Ref3 Rb2 Bg2 f1R Qc4 Rg1 Bf1 Ba8 Rb4 Bb7 R3f6 Re2 Rb1 Ra2 Rfa6 Rag2 Ra7 Nhf2+ Kc2 Nh3+ Kd3 h1N Rf5+ Kd6 Bc8 Rh2 e5+ Kc6 e6 Kd6 Rf2 Ke5 Bd7 Rhg2 Kc2 Ke4 Nd3 Ne5 Kb2 N7c6 e7 Rh2 e8N Ne7 Nb4 Rhg2 Qb3 d3 Ng7 d2 Nd3 d4 Nf5 Rh2 Nh4 Rhg2 Nc1 d3 Qg8 Kd4 Rf5 Ncd5 Nf2 d1N+ Ka2 d2 Ncd3 Nb2 Nd1 Qb5 Bb4 Nc3+ Ka3 Qc6 Bd6 Qc8 Kb4 Rf2 Rb5 Qc6 Ka5 Qc4 Ba3 Qc8 Ne3 d1B Kb6 Rd2 Rba5 Bg4 Nd1 Qc5+
3bQ3/2N1nrkB/2bRnr2/bn4rb/N3N1qR/1nKB4/2bp1BB1/2R1B3 w - - 0 1 illegal: No possible last move
1B3n2/1N1R1b1b/b2B1rr1/KRq4B/n1R2nQ1/n1N1k3/nR1Rp2N/q5b1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kc2 Ke4 g4 h4 g5 e2 g6 e1N+ Kd2 a3 c7 h3 g7 a2 f5 d3 Kc3 d2 f6 d4+ Kb3 d3 f7 Qd6 Qg4+ Ke3 Qg2 e4 Qg4 Nd7 b8N Ba6 Ka4 Ne7 c8R Rh6 g8R Rf6 b7 Qc5 Re8 Nd5 Bb2 d1N Re5 d2 Nc3 Nc2 Re7 Na3 Rb1 a1Q Be2 Nf4 Nc6 Bh6 b8R Nf8 Na5 Bg5 Bc1 Nb2+ Kb3 Bh4 Rd7 Na4 Nb7 Bf2 Nf3 Bg1 Rb2 Rg6 Rbd8 Rc8 Rh8 Rcc6 Rh5 Rcf6 Rhd5 Bf2 Re1 h1B Nh2 Bg1 Rd4 Bg2 Rc4 Bf1 Bf3+ Be2 Rf1 Bd3 Rf2 Bb1 Rb8 Bd3 Qf5 Bb1 Bh5 Bd3 Qg4 Bb1 Nf3 h2 Rg2 h1B Nh2 Qd4 Kb4 Ba2 Ka5 Qc5+ Rb5 Bb1 Bb2 d1N Rgd2 Bg2 Ne2 Ndc3 Bc1 Na2 Nc3 Bf3 Bb2 Bd1 Bc1 Bb3 Bb2 Nh7 f8B B1c2 Bd6 Nf8 Ne2 Bd3 Bbe5 Bb1 Nc3 Bd3 Rb4 Bg8 Rc8 Bdc4 Bb8 Bh7 Rbb2 Bd5 Bed6 Bf7 Rf2 Kd4 Rfc2 e3 Rc6 e2 Rd2+ Ke3 Rcc7 Qg5 Rc4 Qc5
BKb2B2/qb3B2/Q7/3q4/2N2rn1/qRpRb1R1/1qN1r1nk/N1qBB1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 b4 h5 g4 a5 d4 f3 b6 c3 b7 h3 g5 c4 b5 h2 g6 a4 d5 c2 g7 c3 b6 a3 Bg2 h4 Nd2 f2 Ngf3 f1Q Nb3 h3 Ne5 a2 Bh6 c1B Rb1 a1Q Qd3 Ra2 Rg1 h1B Qa6 Nd7 b8N h2 b7+ Nb6 Nbc6 Qb2 b8B+ Qc7 Na1 Be3 Nd4 Qfc1 Ndc2 Qa3 Bf3 Qcb2 Rg3 Bg1 Kf4 f5 e4 Nf6 g8B Ng4 Bd1 Bf3 Bg7 h1Q Bf7 Rh4 Bh6 Be7 Bf8 Qg2 Qb7 Nc4 Qa6+ Qb6 Rb4 Nce3 Rb3 Qd2 Ba7 Qbc6 Bd4 Qa7 Bb6 Qdc1 Bd8 Qcb2 Nc4+ Kc5 d6 Qd5 d7 Bg2 Nb4 Kd4 e5 Bc5 e6 Bf3 e7 Ng2+ Kg5 Ke4 e8B Bb6 Nbc2 Bbe3+ Kg6 Kf4 Bb6 Qdc5 d8R Bfb7 Rd3 Qd5 Bc6 Nh6 Rg5 Ng4 Bd8 Kg3 Bc7+ Kh3 Bg3 f4 Be1 f3 Kg7 Nf2 Kf6 Kh2 Rg3 Re4 Bd6 Rg4 Ke7 Rf4 Kd8 Ng4 Kc7 f2 Bc5 f1Q Bf8 Qc1 Nb4 Re2 Nbc2 Q7c5 Kb8 Qf2 Nd6 Qab2 Nc4 Qca3 Qa5 Ba6 Ba8 Bab7 Qb5 Qff3 Qa5 Qd4 Qa4 Qfd5 Qa6 Qa7+
4rNkB/2q1nrN1/nRp1NK1B/2N2B2/RR1rr3/3n2r1/Nb3q2/1n1Q1b2 w - - 0 1 illegal: No possible last move
n2kNr2/BR1N1b2/1rR5/1nqB2Nn/RK2rb1B/4Bp2/qbB4Q/5b1n w - - 0 1 illegal: No possible last move
6R1/B2bq1N1/NKBr1kbR/b2q2nr/1Nq4n/B1p5/2R1Bn2/q2b1B1Q w - - 0 1 illegal: No possible last move
3Rr2r/5NkB/1n3p2/b1B2q1R/bqn2Bnn/3b2Bb/N1B4q/1NK3RQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 a5 e4 h5 g4 d3 c4 a4 g5 f6 g6 a3 c5 a2 g7 Kf7 e5 f3 b6 h3 b5 d4 b7 f2 c6 h2 b6 h4 c7 h3 Qg4 Qd6 Ba3 Nh6 g8N Nd7 b8B Nf5 b7 Nh4 Bb4 Nb6 Ba3 Qb4+ Kd1 d2 Qe4 Kg7 Bd3 f1B Bc2 Bd3 e6 Be7 Qf3 Bd8 Ne2 Bd7 c8R Bc7 Re1 h1Q e7 h2 e8B Bh3 Nec3 Qg2 Bc6 h1N Be4 Qh2 Bh7 Bd8 Bf4 Bc7 Rf8 Re8 b8B Bd8 Ne2 Bc7 Nc1 Bd8 Nc3 Bc7 Rb1 a1Q Nh6 Bd8 Rb3 Qb1 Nf7 Qa4 Qd5 Bc4 Ne5 Re7 Bc7 Nc8 Bce4 Ba6 Bcd6 Ba5 Be3 Nb6 Rd8 Ree8 Nf7 Qd7 Bc2 Bd3 Rb4 Qc8 Rc4 Qb5 Rc5 Qb1 Bg1 Qb4 Bb2 Qd7 Qc6 Qc8 Rh5 Qf5 Ba1 Be4 Bg3 Nf2+ Ke2 d1N Kd2 d3 Na2 Ng4+ Kc1 Nb2 Bc5 Qc8 Rg1 d2+ Kb1 Bd3 Qh1 N2c4+ Bb2 Qa4 Bba3 Qf5 Bc1 Na3+ Kb2 Qaf4 Nb1 Qb4+ Bb3 d1B+ Bd2 Rhf8 Kc1 Nac4 Bdf4 Rh8 Ba4 Bf3 Bb3 Bc6 Bc2 Ba4
2K4b/1B4bq/1pR3B1/kn2B1nb/3RbN2/1b2Rb2/nB1r4/1Q1NNrnB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kf3 Kb6 Ke4 f5+ Ke5 h5 g4 c4 d4 h3 a4 f3 e4 h4 g5 b3 g6 f2 d6 b2 g7 c3 d7 c2 Ke6 f4 d5 h2 e5 h3 d6 f3 Qd3 Nh6 g8N Nc6 Qe3+ Ka5 Nc3 b1N Nd1 b6 Qb3 Na7 Ne7 Nc3 Bb2 c1B Ng6 Nab5 Ra3 Qc7 Bg2 f1B Nf4 f2 Bb7 Nf7 Nf3 Na2 Ne1 Be2 Rg1 h1B Rg6 f1B Qc2 h2 Qb1 Rh6 Re3 Bg7 Ke7 Bd2 e6 Ng5 Be5 Qc2 Kd8 Bh5 e7 Bc3 e8B Bc4 Rf6 Qh7 Bg6 Bb3 Re6 Kb4 a5 B1f3 a6 h1N a7 Nf2 Rf6 Rb8 a8B Ka5 Re6 Nfh3 Rf6 Bfg4 Bh1 Ng1 Bab7 Bf3 Re6 Na3 Kc7 Ra8 d8B Bd7 Bdf6 Bdc6 d7 Rf8 d8R Nb5+ Kc8 Bce4 Rc6 Rf7 Nd5 Rd7 Nf4 Rd2 Be7 Ba1 Ba3 Bd4 Bb2 Bh8 Bf5 Rf6 Bg6 Rf5 Bd6 Bdg7 Bde5 Rf7 Rd4 Be2 Nfg2 Rf1 Nf4 B2f3
K1b1bQr1/q4BN1/2b1bpN1/2b2q2/2R1r1B1/3R1N1n/2rp1R1B/B2B1n1k w - - 0 1 illegal: No possible last move
2b3Q1/1r1p1r1r/1q1pkb2/B1n4B/2N1bRrB/R6N/4N1rB/1qR1nK1B w - - 0 1 legal: proof: f4 e5 a4 exf4 d4 g5 h4 gxh4 d5 b5 d6 cxd6 axb5 Bg7 Nf3 Bh6 Ng1 Bf8 b4 Ke7 g4 a5 e4 f5 c4 h5 b6 f3 b7 h3 c5 h2 b5 h4 g5 a4 c6 a3 b6 h3 c7 a2 g6 f4 e5 Rh7 e6 Kf6 e7 Rh4 e8B Be7 g7 Rg4 Nc3 Na6 b8B Nc5 b7 Ra7 Bh5 Ke6 Bg2 f2+ Kf1 Nd3 Nce2 Nf6 g8R Ne4 Rf8 Bf6 Be3 Ne1 Qd5+ Ke7 Rc1 a1Q Qg8 Qb1 Rc3 Ra2 Bba7 Nc5 b8B Rc2 Rf7+ Ke6 Ra3 Rb2 Ba8 Rb7 Bb6 Rg2 B8a7 Rg4 Ba5 Rg2 Nf3 Rg4 Rg1 h1R Bd4 Rh2 Be5 Rhg2 Rh1 h2 Nfg1 Bh8 Nh3 Bf6 Rg1 h1B B7b6 Rh2 Ba7 Be4 Rh1 Rhg2 Rg1 Bh8 Bf6 Bg7 Bh4 Bf6 Rh1 Na6 Bd4 Nc5 Be5 Bg5 Bg3 Bh7 Bh2 Nf3+ Nc1 Bc2 Rb3 Rb4 Bf6 R2g3 Ke2 Bb7 Rd1 Bf5 Bc3 Ne1 c8N Bh4 Ra3 f3+ Kd2 Ba6 Ne7 Bc8 Ng6 Bd3 Be4 Rb7 Bf6 Qdb6 Ne5 Rg1 Nc4 R1g3 Rb3 f1R Ra3 Rf2+ Ke3 Rg7 Bg5 Rh7 Ne2 Rg4 Rc1 Bc2 Bh6 Be7 Bg5 Bd3 Bh4 Bg5+ Bf4 Rh2 Bc6 f2 Bh1 Bd8 Be5 Rhg2 Beg3 Be4 Bh2 Rgg7 Rf5+ Rf7 Rf3 Bf6 Rf5 Rg4 Rf3 f1R Rf4 Rfg1 Kf2 R1g3 Kf1 Rg2
2r5/1q3bN1/2B1K2b/1rNBn1q1/nn6/2Bp1Rnk/NBq1pR2/QB1Rr3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 c6 e5 b6 d5 b5 d3 Ke3 h3 c7 d2 b7 h4 b6 h2 Bb5 h3 Ne2 Kg4 f5 a4 f6 a3 f7 a2 Rf1 h1N Nbc3 h2 Rf2 Ng3 Bb2 h1Q Bc6 Nd7 b8B Rh5 b7 Nc5 Nf4+ Kh4 Qf1 d1Q Ne6 Nf6 Ng7 Qc2 Rd1 a1N Na2 Be6 c8B Na4 Bc7 Rg5 b8N Nd7 Na6 Rb8 B8b7 Rc8 Nc5 Qf6 Ba5 Qe7 Ne8 Bh6 f8R Bf7 Ng7 Qg1 Bac3 Kg4 Nd3 Qb4 Ba6 Qb7 Nc5 Kh4 Bd3 Kg4 Rd2 Kh4 Qb1 Qgc1 Rf3 d4+ Kf2 Qcb3 Rf5 e3+ Kf3 e4+ Kf4 e2 Nge6 e1R Na6 e3 Rd1 Nf1 g4 Rh5+ g5 Qd2 Ng7 Nc2 Qa1 Nb4 Bb1 d3 Ke4 e2 Rf2 Be6 R8f3 Bf7 Kf5 Nf6 Ke5 Qbc2 Kf5 Ng3+ Ke5 Be8 Ke6 Qf4 g6 Ra5 Nc5 Rb5 Nh5 Kh3 g7 Bg6 g8B Qfd2 Kd6 Qg5 Bgd5 Nd7 Ng7 Ne5 Ke6 Bf7+
2q4q/kr3Q1N/nR1B2pb/4Bb1R/r1R1BK2/N1r4b/n2p3n/bR2R1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 b4 d5 c4 Kd7 e4 Kc7 h4 Kb6 h5 a5 c5+ Ka7 h6 g6 h7 f3 Kg3 f4+ Kf2 a4 c6 d3 c7 g3+ Ke1 f2+ Kd2 g2 e5 f3 Ke3 d4+ Kf4 d2 e6 d3 e7 a3 e8N a2 Ba3 Nf6 Qb3 d1Q Qf7 d2 Bd3 f1N Rh5 f2 Be4 Bf5 c8R+ Qd7 Rc2 Nh2 Rc4 Rg8 h8B f1B Bg7 Na6 Bh8 Rg7 b6+ Kb8 b5 Qc8 b7 Ka7 Bd6 Nd5+ Kg5 Qc2 Na3 Ndb4 Kf4 Qb2 Re1 a1B Nf6 Na2 Nh7 Qf6 Qg8 Rf7 b8R Rb7 Qf7 Qfd8 Bhe5 Bh6+ Rg5 Rc7 Rb6 Qh8 Ne2 Rb7 Ng1 Bf8 Ne2 g1R Rh5 Rg3 Ng1 Rc3 Rbc6 Rc7 b6+ Kb8 b7 B1h3 Rb6 Ka7 b8R Rb7 Rbb1 Bh6+ Rg5 Nc7 Rc6 Rb5 Rc4 Ka6 Qf8 Rb4 Rb5 Ra4 R5b3 Rb8 Rb6+ Ka7 Qe8 Rb7 Qf7 Bf8 Rh5 Na6 Rh4 Bg7 Rh5 Bh6+
1r1qqN2/RNB2QRp/4N3/R6q/b1K2pB1/kbb2nr1/N2N4/B1n1r2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 e4 Kc5 g4 Kb4 c4 a5 b6 f5 c5 d5 b7 a4 e5 h3 g5 f3 e6 h2 c6 f2 g6 a3 e7 a2 e8N f4 g7 Ra6 c7 Nf6 g8R Ra3+ Nc3 Nbd7 b8N Bg7 Bh3 f1R Nf3 Ng4 Nd2 Re1 b3 Bb7 c8N Bc6 Nc7 Ba4 Bb2 Be5 Rf1 h1Q Rg7 Nh2 Qh5 Nf3 Qf7 Qe8 Bf5 Qh5 Bg4 Rg8 Ne6 Nc5+ Kc2 Bf6 Nd7 Nd3 Ndf8 Nc1 Nd6 Be5 Nb7 Rh8 Rb1 Rg8 Ba1 d3+ Kb2 d4 Rf2 Rh8 Re2 Bf6 Re5 Rg8 Ra5 Rh8 Nde4 d2 Ra7 d1B Nd2 d3 Ra5 Ne2 Rc1 Bc2 Rd1 Nc1 Ra7 Rf1 Re1 Bd1 Re5 Re1 Rea5 Be2 Nc4 d2 Kc2 d1Q+ Kb2 Qdd8 Nd2 Bc4 Kc2 Bd7 Kb2 Ra4 Kc2 Ka3 b4 Be5 b5 Bd4 b6 Bdb5 Nd5 Bc3 Nb4 Bd7 Rf5 Ra6 Ra5+ Ba4+ Nb3 Qd4 Nc7 Rd1 Bh3 Ne2 Ng6 Be6 Nd8 Qeb5 b7 Ne5 b8B Qbd7 Nb7 Nf3 Bf5 Rd8 Nf8 Qe8 Bh3 Bc4 Be6 Rg1 Bg4 Rad6 Nce6 Rg3 Bc7 Rb8 R5a6 Qf6 Ra5 Bd5 Kd3 Qfd8 Rb5 Rb6 Rba5 Rb5 Nd2 Rb6 Na6 Rb1 Nb4 Bb3+ Rd5 Bd4 Bc3 a1Q Na2 Rh1 Rf5 Qf1 Ba1 Bc3+ Rd5 Qfh3 Rg5 Re1 Rg7 Qdh4 Rb5 Qh1 Rba5 Qhd8+ Rd5 Bc2+ Kc4 Nc1 Rda5 Bb3+
1RNR4/3Rp2b/4n1k1/2p2Rn1/2qr1RK1/1Q3q1N/q1BBbb2/BNb3rr w - - 0 1 illegal: No possible last move
4NBr1/2Bp1bqB/1NbR3b/B1RN1B1q/1q4rp/5R2/k1KQ1n1n/2b2n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Ke6 g4 h5 e4 f5 b4 a5 c5 h3 e5 Kd5 g5 d3 c6 Kc4 g6 a4 e6 h4 c7 a3 g7 h2 b6 a2 e7 f3 e8B f2 b7 f4 b5 f3 b6 Na6 b8B Nb4 b7 Qe7 Bg2 f1B Ba3 f2 Ne2 Nf6 g8N Ra4 Bg6 Bh6+ Nf4 Qg7 Bh3 Ng4 Nf6 Rg8 Bh7 Be2 Re1 h1Q Nc3 Qe4 Ncd5 Nh2 Ne8 Bh5 Rf1 Bf7 B3f5 Qed4 Qe2 Kb3 Rad1 a1B Nb6 Bb2 Ba7 Qe4 b8B Bb7 c8R Ka2 Rc5 Bc6 Bc7 Qe7 Qe3 Qe4 Qd4 Bc1+ Kc3 d2 Nfd5 Nd3 Kc2 Qe1 Bb4 Qe7 Ba5 Qd6 Qe3 Rg4 Bab8 Qdf8 Bd6 Qe7 Bbc7 Qe4 Bf8 Qb4 Rg1 f1N Rg3 Nf2 Rf3 Rg6 Qf4 Rg2 Re1 Rg3 Re6 Rg4 Qd4 Qb5 Rd6 d1Q+ Kc3 Qe1+ Kc2 Qeb4 Qf4 Qe2+ Qd2 Qee5 Be6 Qeg5 Bef5 Qh5
Nr4QB/4b1rR/rpbBB2N/1R3Bb1/1NK3Rn/2brnpB1/1q6/3b1k2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kd3 g5 a4 c5 e4 f5 h4 b6 h5 g3 a5 g4 a6 c4+ Kd2 c3+ Kd3 g2 a7 g3 h6 c2 h7 f3 Ra2 f2 Rh4 b3 Ra4 b2 Ne2 g1R Nbc3 b1R Bh3 f1B Kc4 g2 Na2 f4 Nb4 f3 Ba3 c1B Be6 Nc6 Qb3 Bg5 Rh3 Rb8 a8N Nge7 Bf5 Rg8 h8B Rd1 Rh7 Rd3 Ng3 Rg7 Ra5 Be6 Rb5 Bd7 Qa2 Ng6 e5+ Ke7 e6 Kf6 e7 Nh4 e8B Be7 d6 Be2 d5 Ke5 Bh5 Kf4 Bf7 Ke3 B7e6 Kf2 Qb3 Be8 d7 Ra1 d6 g1B Qa2 Qc8 d8B Nd4+ Bc7 Bc6 d7 Nc2 d8R Bd1 Rd4 Qf8 Qb3 Qf6 Rg4 Ke1 Bd6 Bd4 Bc1 Ra7 Bcf4 Bc3 Bg6 Qe5 Bc8 Be8 Nf5 Bb2 Bg3+ Kf1 Nh6 Ra5 Bgf5 Ra6 Qa2 Qe2 Qb3 Bd4 Kd5 Qd2 Qc4 Qc1 Bcd7 Qb2 Qc8 Bdf6+ Kc4 Bc3 Bde6 Bc6 Qg8 Ne3+
1b1B1bNr/1BNQNRbk/rpq2b1r/2n3K1/b1p5/2N5/6n1/2N1rRRB w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 a4 c4 h4 b3 d4 b6 a5 g3 h5+ Kh7 d6 b2 d7 e6 h6 e3 d5 e2 d6 e1B a6 g2 a7 g6 Ne2 g1B Bg2 Na6 Nbc3 b1R Bb7 Nf6 Kg5 e5 f4 e4 f5 Ng4+ f6 Bh2 Rf1 Qe8 d8N e3 d7 Bb8 f7 Nc5 Nc6 Qe4 d8N Bd7 Ne7 Ba4 Qd7 Qc6 Bd2 Beg3 Be1 Bge5 Ne6 Beg7 Nc1 e2 Nc7 Ne3 Ng8 Ng2 Bh4 e1R Rg1 Rb5 Rb1 Ra5 Ra1 Ra6 Rf1 Bd6 f8R Be5 R8f7 Bf6+ Kg4 g5 Kh5 g4 Rb1 Be5 Bd8 g3 Kg5 Bd6 Qe6 Re3 N7b5 Bbc7 Kg4 Nf4 Nf6+ Kg6 h7 g2 Rg1 Re5 Nb3 Rf8 h8N+ Kh6 Be7 Rfb8 Rbf1 Re1 Qd7 Rc8 Ng6 Be5 Nfd5 Bef6 Nc1 Rf8 Kf5 Rac8 Kg4 Bb8 Nbc7 Rce8 Bd8 R8e3 Ne5 Kh7 Ne7 Rh8 Ng8 Rh3 Ng6 Rh6 N6e7 Be5 Rf5 Bf8 Rf7+ Beg7 Rh1 g1B Kg5 Bd4 Rhg1 Qb5 Bh1 Ng2 a8B Qc6 Bb7 Bf6+
6b1/3Rp1nN/nbb2pB1/qR4nB/3B1b2/1R1r1B1r/1bKNB1Q1/n1N1k3 w - - 0 1 illegal: No possible last move, all moves rejected
1b2rkb1/3B4/QB2B2R/p1n2r1b/q2RB1pK/N3q1N1/b2N4/1BRnr1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kf2 d5 Kg3 g5 e4 a5 b4 f5 c4 a3 h4 a2 c5 Ne7 h5 d3 b5 d2 c6 d4 h6 d3 h7 Qd4 b6 Nd7 e6 Nd5 e7 Ba6 c7 Rd8 e5 Ne3 Qe2 Bc4 Bb2 Rg8 h8N Rc8 b7 f4+ Kh2 g3+ Kh3 d1R b8R f3 Nf7 g2 Nh6 f2 Nf5 d2 Rb4 Kf7 e8B+ Ke6 Ng3 Ke7 e6 Re1 Bg6 d1B Nf3 g1R Bg2 f1B Nfd2 Bdb3 Bd3 Nd1 Ba3 Ke8 e7 Qe3 Bh7 Rb8 c8B Rb5 Qd3 Bd5 Rd4 Be2 Bc5 Bg7 Ba7 Be5 Bb6 Bb8 Qc4 Kf7 e8B+ Kg7 Bf7 Re8 Bf5 Rc5 Qa6 Kf8 B7g6 Bf7 Be6 Bg8 Bc2 Rf5 Bge4 Nc5 Bcd7 Bh5 Bcd3 Bhf7 Kg4 Bg6 Rh6 Bh5+ Kh3 g4+ Kh4 Nb7 Nc3 Bd5 Rc1 a1Q Ncb1 Qa4 Na3 Ba2 Bb1 Nc5
4Nb2/1qNn1p2/3n3R/2B4B/N3R1Rp/1r1Bn2Q/1nqbNr2/Kb1k2bN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 g4 Ke6 e4 Ke5 d4+ Ke6 Kd2 h5 Kc3 a5 Kb2 c5 e5 Kd5 e6 Ke4 d5 f3 b6 h3 d6 h2 g5 f2 b5 a4 d7 Ba6 g6 Nf6 g7 Qc7 d8N Nbd7 g8B Rb8 e7 Ne8 b7 Nd6 Be2 f1N e8N Ne3 b6 a3+ Ka2 c3 Nc6 c4 Bh7+ Kf4 Qd3 c2 Ne5 c3 Ng4 h4 Nf2 Rg8 Bh5 Rg2 Qf5+ Kg3 Qh3+ Kf4 Bd2 c1B Bd3 c2 Bb4 Bd2 Nc3 c1N+ Kb1 Bb5 Bc5 a2+ Kb2 Bc6 Na4 Be4 Rb1 Bg6 Ka1 Be4 Rb4 Qc8 Kb2 a1B+ Kb1 Bd4 Ne2+ Ke5 Re1 h1Q Rg1 Qh2 Nh1 Rf2 Rg4 Kd5 Bc2 Nd3 Ka2 Nb2 Ka1 Bg6 Bd3 Bh7 Bb5 Bb1 Bd3 Qg1 Rc4 Qc1 Rb4 Qc2 Rc4 Ra8 b8N Qb7 Na6 Rb8 Rb4 Be5 Rbe4 Bh2 Re6 Bg1 Rh6 Qc6 b7 Qb5 Be4+ Kc4 Nac7 Kb3 Bd3 Qc3 Bc4+ Kc2 Bd3+ Kd1 Re4 Qc2 Rg4 Rc8 b8R Qb7 Ra8 Rb8 Ra6 Ne4 Rae6 Nd6 Re7 Qe4 Re5 Rb3 Ree6 Qa8 Ree4 Qb7
b2Rb3/5NbN/4Bp2/Q1Br1pr1/3nRpqr/K1q5/1B1R1qNN/N5kn w - - 0 1 illegal: No proof kernel
2B1R1n1/1nR2p1B/Bb2rn2/1p1N1q2/r2Nn2R/2BrN1p1/K3Q3/1B2bbk1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 e4 Ke6 h4 g5 a4 d5 c4 b3 a5 b6 c5 b2 Kc2 g3 Kb3 g2 a6 d3 c6 g4 a7 g3 h5 d4 c7 d2 h6 d3 h7 Ba3 Nf3 g1B Qe2 d1R Ka2 d2 Rh4 Qf6 Nc3 b1N Bb2 Bb7 c8B+ Nd7 Nd5 Bb4 Ne3 Na3 Rc1 Nb5 Rc7 Qf5 Bc3 Nd6 Bg2 Ba6 Nd4+ Ke7 e6 Kf6 e7 Kg5 e8R Nb7 e5 Ndf6 e6 Re1 e7 d1N Ka1 Nf2+ Ka2 N2e4 Bf3 Rd1 Bh5 Rd3 Bg6 Rb8 a8B Bb5 Bb2 Be1 Bc3 Ba6 Rd8 Bb5 e8B Ba6 Bb5 Bgf2 Rh3 Kf4 Re8 Bg1 Be6 Rd8 Bc8 Rd6 Bc4 Bb5 Rh6 Re6 Rh5 Bc6 Ba6 b5 Rh1 Nf2 Rh3 Bg2 Rh2 Bf1 Rh3 Nc5 Be4 Nb7 Rh5 Rd1 Bb1 Rd3 Rh2 N2e4 Rh3 Nh6 Rh5 Rf8 h8N Nhg8 Ree7 Rd8 Re8 Rd5 Rh3 Rc5 Bh7 Rc4 Kb3 Ra4 Ng6+ Kg5 Ne7 Kf4 Rh6 Kg5 Rg6+ Kh4 N7d5 Kh3 Rg4 Bgf2 Rf4 Kh2 Rh4+ Kg1 Kb2 Bd2 Kb3 Bfe1 Kb2 Bc1+ Kb3 Ba3 Ka2 Bc5+ Kb2 Bb6 Kb3 Rb4+ Ka2 Ra4+
rq4n1/1N3rbR/bkB1q2n/1q1B2q1/3R1Qpp/1B1N4/pB3NRq/B6K w - - 0 1 illegal: No proof kernel
2BK2R1/Rbb1R1N1/r1B5/1Rpp2k1/nbQq2N1/2rN2pr/qB5R/rn6 w - - 0 1 illegal: No proof kernel
1K4qB/1R3n2/N1brN3/pR2bb2/BB5n/pn2p1QN/1nk1Np1r/1N4R1 w - - 0 1 illegal: No proof kernel
b7/1rR1pR2/p1nNNp1N/4BqnK/1B3B1q/2br1B1Q/5Rp1/2n2Bkn w - - 0 1 illegal: No proof kernel
B1qB1B1N/1p4R1/1RpN1r2/1p3np1/1R1K3n/1b2r2Q/B1qB1k2/Nbb4b w - - 0 1 legal: proof: f4 d5 g4 h5 b4 hxg4 c4 e5 cxd5 exf4 b5 a6 Bh3 axb5 Bg2 Ra7 Bf1 Ra8 Kf2 Ke7 a4 Kf6 h4 Ke5 d4+ Ke4 d6 f5 d7 g5 h5 f3 h6 f4 h7 c6 d5 Ba3 a5 Na6 d6 Nc7 a6 Bb4 a7 Qf6 d8B Ba3 d7 Qf5 Be7 Ne8 d8B Nd6 Nh3 Be6 Qb3 Nh6 Bd2 Bc1 Na3 Rf8 h8N Rf6 Nc2 Bc4 e3 Qc8 Bf8 Ndf5 Ra6 Nh4 Rb6 N6f5 Na1 Rb8 Qa3 Bb3 Bc4 Ra8 Rg1 Rb8 a8B g3+ Ke1 f2+ Ke2 g2 Rh1 Bc2 Ba2 f1B+ Kf2 f3 Qd3+ Ke5 e4 Bb1 Qb3 Kd4 e5 Ke4 e6 Bc4 e7 Bd5 Qa3 Bb3 e8R+ Kd3 Re7 Kd4 Ke1 f2+ Ke2 g1Q Rg7 Qh2 Rg1 Ke4 Rg2 f1B+ Kf2 Qe5 Rg4+ Kd3 Rb4 Bg2 Nc2 Bh1 Na1 Ng2 Kf3 Qc3 Kf2 Qc5+ Kf3 Qc4 Nf2+ Kd4 Ne4 Ngh4+ Kf2 Kd3 Kg1 Ke2 Nd6 Ba4 Qb3 Qc2 Qe6+ Kf3 Kf1 Kg3 Ke2 Bb3 Qd7 Nh6 Ke3 Kg2 Kd4 Kf2 Qe6 N6f5+ Ke5 Qd7 Bc7 Re8 Bd8 Nh6 Kd4 Qc8 Qg4 Re3 Qh3 N6f5+
1rB4k/Q2B3p/1Q2nN2/5b1p/2KQ1rbR/7N/3rQq1q/B1R1rQ1q w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 e5 f4 exf4 h4 b5 axb5 g6 h5 gxh5 b6 Qe7 b7 Qg5 b5 Ba3 Nxa3 Kd8 b6 Ke8 Nb1 Na6 Rxa6 Qe7 Ra1 Qd8 Kd2 Kf8 Kd3 Kg7 b8Q a5 e4 f5 c4 d5 g4 f3 g5 f2 c5 a4 b7 a3 g6 f4 e5 f3 e6 a2 c6 Nh6 e7 Qc7 e8Q Qh2 c7 Bf5+ Qe4 Rf8 c8B Kh8 Qd2 Nf7 Bb2 Ng5 Bh3 f1R Qa7 f2 b8Q Ne6 Qbb6 Rb8 Qe2 Re1 Nd2 f1Q Rc1 Qff2 Ba1 Rf6 Bg4 Rf7 Nh3 Rf6 Kc2 d3+ Kb3 d4 Kc4 Rf7 Q4e3 Rf8 Ne4 d2 Qf1 d1B Nf6 d3 Qed4 d2 Bd7 Bfc2 Bf5 Bg4 Bc8 d1R Qe2 Nc7 Bfd7 Rd2 Qf1 Ne6 Qe2 Kg7 Qf1 Bcf5 Qe2 Kh6 g7 Rf7 g8Q Rf8 Bb2 a1Q Qf7 Qb1 Ba1 Qe4 Qe8 Kg7 Qf1 Kh8 Qe7 Nc7 Qe5 Qef3 Qee2 Ne6 Rg1 Qfh1 Rg2 Bf3 Rg4 Rf7 Rh4 B3g4 Rd1 Rf8 Rc1 Bc2 Ne8+ Rf6 Ng7 Rf4 Ne8+ Ng7 Nf6 Ne6 Qab7 Bb1 Q7a7 Bbf5
3Rr1R1/BQ3B2/Bq2Bn1N/8/1n2NppQ/1B2p2N/1k2K1q1/1n2q1qq w - - 0 1 illegal: No possible last move, all moves rejected
7R/3QBq1n/2Q1p2B/2Nn1p2/1N2nb1R/2p1ppkN/1b3N2/KN2r2B w - - 0 1 legal: proof: e4 a5 c4 d5 a4 dxe4 f4 b5 axb5 h6 g4 a4 b4 Ra5 g5 Ba6 b6 hxg5 bxa5 Bb5 cxb5 gxf4 Ra3 f3 Ra2 Rh3 Ra1 Rh8 h4 Kd7 d4 Kd6 Kd2 c5 Kc3 f5 Kb2 g5 h5 e3 a6 g4 h6 g3 a7 g2 a8Q Nf6 h7 Ng4 d5 Ke5 d6 Kf4 b7 Kg3 d7 Nf2 b6 Rg8 h8N Qe8 d8B Kg4 Rh4+ Kg3 Qd7 Qg6 Nh3 g1N Nf7 Ne4 Nh6 Nc6 b8N Qf7 b7 Nb4 Ng4 Nd5 Na6 Bh6 b8N Bf4 Ngf2 Re8 Nc6 a3+ Ka2 Bb8 Bg2 Bf4 Ng5 Nh3 Ncb4 Bc7 Bh1 Bf4 Nh7 Nhg5 Qac6 Nef6 Bd2 Nge4 Ng5 Nh7 Ngh3 e6 Bc3 c4 Bg7 c3 Bh6 Rg8 Nc5 Rg7 Be7 Rg8 Kb3 Rg7 Ra2 Rg5 Rd2 a2 Ka3 a1B Ka2 Rh5 Rd1 Bb2 Rg1+ Kh2 Rg8 Rg5 Rh8 Rg1 Bhf8 Re1 Bh6 Bc1 Ka1 Kg3 Nca6 Ba3 Nc5 Bb2+
4n2r/1R5n/1r3Q1b/Rq1bNB2/N4rq1/B2Q4/QbQQnqRK/5kr1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 g4 Kd6 Kg2 Kc5 e4 Kd4 d3 h5 b6 c5 e5 f5 e6 b3 g5 b2 e7 c4 e8Q f3+ Kh2 f4 g6 h3 g7 c3 d6 c2 b7 h4 d7 f2 Qdh5 f3 Qeg6 Qg5 d8R+ Nd7 b8Q Nf6 g8Q Ne8 Nc3 b1R Qc7 Bb7 Qhh6 Ra4 Rb8 Qg4 Qd2 Bh6 Bb2 Be4 Rb7 c1B Qgc6 Rc4 Ra5 Ndf6 Ba3 Rb6 Na4 Nh7 Qce6 Rcb4 Qcc2 Bb2 Qeg6 Bc6 Qa2 Rc4 Be2 f1Q Qf5 f2 Bd1 Qh5 Bg4 Qe1 Qe6 f1Q Bf5 Qg4 Qf6+ Qe5+ Qf4+ Be4 Qg3 Qff4 Nf3+ Ke3 d4 Qb5 Kg1 h2+ Kf1 h3 Rg1 h1N d5 h2 d6 Bc6 Qh3 Ng3+ Kg2 h1R d7 Ne2+ Qg3 Qd4 d8Q Qdc5 Qd5 Rf4 Ne5+ Rf3 Rf1 Rg1+ Kh2 Qcd4 Qe1 Rf4 Rf2 Qdc5 Qdc4 Bd5 Rg2 Qd4 Nd7 Kf3 Qed2 Qdc5 Q4d3+ Qe3 Rg3+ Kf2 Rg2+ Kf1 Ne5 Qf2
r5N1/6q1/B3K1n1/1b2rr2/NNrbk1n1/3n1q1B/3RbQ1N/BQN3Rq w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 d4 h5 g4 h3 d6 h2 Kd5 f3 e4 b3 b6 b2 d7 h4 b7 h3 Ba6 c4 Qd2 f2 Nf3 f1R Qf2 c3 Rg1 h1Q Nbd2 b1R Bb2 c2 Nb3 c1N Nh2+ Qf3 Ra2 Bc5 Ba1 Qc7 d8N Nd7 b8Q Ne5 Ne6 Rh5 Rd2 Ncd3 Nc1 Nh6 g5+ Kg6 Qb3 f5 Qb4 Ba7 Nc5 f4 Na4 Qg7 Kd6 Nhg4 d5 Bb7 Ke6 Bc6 d6 Bb5 d7 Bd4 d8N Rb2 Qb3 Rc2 Nc6 Rc4 Nb4 Re1 Nf1 h2 Qb1 h1Q Nh2 Nf7 e5 Nh8 Kd6 Kf5 g6 Re3 e6 Re5 e7 Ke4 e8B Rhf5 Bf7 Qe2 Be6 f3 Qe1 f2 Qf1 Qf7 g7 Ng6 g8N Qef3 Qg2 f1B Qf2 Qg7 Bec8 Nf6 Bd7 Be2 Bdc8 Rg5 Bh3 Ref5 Ke6 Ng4 Rg3 Rfc5 Rg2 Rgf5 Rg1 Rce5+
Bb3B1n/BQbkBr2/1r1bnr2/R1n1r3/2K1Nb2/2q1Q3/4B3/bR1R3N w - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 g4 hxg4 b3 a5 b6 a4 Ke2 a3 Ke1 Bb7 Qd2 Bc6 Qd1 Ba4 bxa4 Ra6 Bd3 Ra5 Bf1 Ra8 Ke2 d5 c4 e5 h4 g5 f4 a2 c5 g3 b7 g2 f5 g4 f6 e3 Kd3 e2 h5 e1N+ Ke2 g3 a5 d3+ Kd2 d4 a6 e4 f7+ Kd7 h6 Ne7 a7 Na6 b8R Qc8 h7 Nc7 Rh4 Ng6 Qe2 e3+ Kd1 d2 Qf3 Nd3 Kc2 d1R Kb3 e2 Nh3 g1B Bg2 e1B Nc3 Be3 Qf5+ Ne6 Qg5 Bf4 Nf2 B8d6 Be3 Re8 h8B Rb1+ Kc4 Rb6 Bf6 Nh8 Nce4 Ba5 Bf1 g2 f8B g1B Rd1 a1B Nh1 Bgh2 Rh5 Re7 Bg1 Rf7 Be2 Qc7 Rb7 Re8 Bd8 Ree7 a8B Rf6 Rb8 Ref7 Bde7 Qc6 Re8 Bb8 Qh6 Bfd6 Qe3 Bhf4 Rg5 Rb3 Bf2 Bac7 Rb1 Rb6 Rgg1 Nb4 Rgd1 d3 Bg1 d2 Rc8 Ba7 Rb8 Na6 Bf2 Rb3 Rb5 Bab8 Ra5 Rb6 Bg1 Qb7 Bf2 Qc8 c6+ Ke8 Re1 d1R Rg1 Rd2 Rgd1 Rd5 Bg1 Nac5 Bf2 Bd8 c7 Kd7 Bg1 Re5 Bf2 Qb7 Bg1 Qc6 c8Q+ Ke8 Qa6 Kd7 Qb7+ Bdc7 Rb4 Nb3+ Kd3 Bd4 Qc1 Ba1 Qd2 Rbb5 Ba7 Qc5 Qe3 Rb6 Rbb5 Qa3 Kc4 Nbc5 Rbb1 Qc3+
kBbB4/Br1rn2B/5K1q/1bNrQQ2/2bRNB2/1r4R1/1n1q4/Q5bq w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb7 e4 h5 d4 f5 g4 c4 d6 h3 b6 f3 g5 b3 d7 c3 d5 h4 g6 c2 d6 b2 g7 h2 Bh3 f4 Nc3 b1R Na4 f2 Ne2 f1B Rg1 h1R Nec3 f3 Bf4 c1Q Rg3 f2 Bf5 h3 Bh7 Ne7 g8Q h2 Qg6 Nbc6+ Kf6 Bc4 e5 f1B e6 Ra7 Ne4 Ne5 Qf5 Ka8 Nac5 Rb3 Ra4 Nd3 Qe1 Qe3 Qa1 Nb2 Rb4 Bb5 Rd4 Bfc4 b7+ Kb8 Qc1 Rd1 Qa1 Qb6 d8B h1Q d7+ Qd6 Rf3 Qd2 Bb6 Bh6 Rg3 Rd8 Be5 Be3 Bf4 Rg8 d8B Bg1 Be3 Ra5 Bbc7+ Ka7 b8B+ Ka8 Bb6 Rg5 B6a7 Ra6 Bf4 Rb6 Rf3 Rb7 Rc3 Qb6 Rg3 Nc6 e7 Rg7 e8Q Rgd7 Qee5 Ne7+ Kg5 Qbh6+ Kg4 Qc6 Kg5 Qdh2 Rd6 Qa6 Rdd3 Qa5 Kf6 Qe1 Rc3 R1d5 Rcd3 Qed2 Rd4 Qh6+
1BB1Rqn1/QnNrnb2/1n1r1N2/6k1/1R1K4/Q1BBr3/3rR2b/4Bbq1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 g4 Kf6 d4 c5 e4 h5 d6 b3 e5+ Kg5 d7 f5 e6 b2 b6 c4 d5 h3 d6 c3 e7 c2 e8R h2 b7 h4 Nd2 b1N Ra5 f3 Ke3 h3 Ree5 f2 Kd4 Ra6 Ra4 Rh7 Qf3 Na3 Ne2 Nc4 Qa3 Nb6 Bb2 c1N Re8 f4 Nc3 f3 Bd3 f1B Nd5 f2 Nc7 Bh6 Rg1 h1Q Bc3 h2 Rg2 Qg1 Rb4 h1R Rh2 Qe7 d8Q Be6 d7 Bf7 Qc8 Qf8 d8B+ Nf6 Rg2 Rh3 Qd7 Re3 Be7 Rg7 Bc5 Ng8 Ne4+ Kg6 Be1 Bf4 g5 Bh2 Bc3 Kh5 g6 Rh7 g7 Kh4 Bb5 Nd3 Qe7+ Kh5 Nf6+ Kh6 Bd6 Nc5 Bg3 Kg6 Bd3+ Kg5 Qc1 Ra2 Qa3 Rd2 Qd7 Nd5 Qe7 Nbd7 b8B N7b6 Qd7 Rh6 Qda4 Nb7 Qa7 Nge7 g8B Rg6 Nh5 Rd6 Nf6 Rd7 Bh7 Ng8 Bf5 Rd6 Bd7 Nde7+ Ncd5 Be2 Bc8 f1R Rf2 Rc1 Rg2 Bf1 Re2 Rd7 Be1 Rcc2 Ba1 Rc6 Bc3 Rg3+ Ke4 Rcd6 Nc7 Bd5+ Ke5 Re3+ Kd4 Bf7+
Q2R1Q2/QRRK4/4n2r/Q1nb2B1/3q1bN1/2b1qn2/Bn1bb2Q/1Nk3n1 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 e5 d5+ e6 a4 c3 a3 g6 a2 b6 g2 g7 d4 b5 g3 b7 h4 b6 h3 Ba3 h2 Bc1 Ne7+ Ke5 f5 g8R f4 Bd2 f3 Bf4 f2 Nf3 g1N Kf6 g2 Qe2 Kb3 c4 d2 c5 Kc2 c6 d3 c7 Ng6+ e7 Na6 b8Q Qe8 b7 Kc1 Qe6 Nc5 Ne1 Rh6 Qb6 Bg4 c8Q Be2 Bg5 Nf4+ Ke5 d1N Nc2 d2 Ne3 Ne6 Kd6 Bg7 Q8a7 Nb2 b8Q Bc3 Qba5 Bb4 Qc6 d1Q+ Qd5 Bd2 Ng4 Qda4 Qda8 Qe4 Rh8 Q8a4 e8Q Qad4+ Ke7 Qee3 Rf8 Ba6 Bc4 f1N Bd5 Be2 Qe5 Nf3 Qf7 g1B Rd8 Bf2 Qf8 Bg3 Rg1 h1B Rg2 Ng1 Bc4 Bge1 Qh2 Bg3 Rf2 Bd5 Rf7 Bf4 Ke8 Ng3 Rb7 Nf5 Rc7 Nh4 Ke7 Ncd3 Kd7 Nhf3 Nc3+ Kc2 Rb1 a1B Ba2 Ndc5+ Ke7 Nba4 Rbb7 Kc1 Nb1 Bac3 Ke8 Nb2 Ke7 Nca4 Kd7 Nac5+
1N3k1r/Q2q4/q5b1/2R1bbNn/N3B3/Bqbq2Q1/N3R1q1/1Qb1Nn1K w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 b4 h5 e4 d5 c4 f5 g6 g2 Kf2 a4 e5 f4 g7 d3 c5 a3 c6 a2 c7 d2 e6 g3+ Kf3 h4 e7 h3 b6 h2 b7 d4 b5 d3 b6 Nc6 b8N Na5 b7 Bf5 c8N Qd7 Na3 Nb3 Nc6 Nf6 g8N Bh6 b8Q Nh5 Ne2 g1Q Nc2 g2 Nc3 Qb6 Qa7 g1B Kg2 Bd4 Nb8 Qa6 Rg1 f3+ Kh1 f2 Rg2 Be5 Ba3 Bhf4 Qc1 d1Q Nb6 Nd2 Ne1 Qb3 Nba4 Bg5 Rb1 a1B Na2 Bac3 Nf6+ Kf7 Be2 Nf1 Nh7 d2 Bd3 d1Q Be4 Q1d3 e8Q+ Kg7 Qc8 Bg6 Qc2 Bc1 Ng5 Bf5 Qcc5 Kg8 Qe3 Bg6 Nc5 Kf8 Rb2 Bf5 Qb1 Bg6 Rg4 Bf5 Re2 Bg6 Kg2 Bf5 Qg3 h1B+ Kh3 Bf3 Na4+ Qb4 Qh2 Bg6 Bd5 Nfg3 Qg2 f1Q Kh2 Qf2 Rc4 Bg4 Rc5 Qb3 Be4 Nf1+ Kh1 B4f5 Qg3 Qg2+
4R3/2Q3Nq/3Rr1B1/Qn1rNNnb/K7/1BN1N2q/1qq1r1r1/2r1Rqk1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 c4 Ke7 Kc2 Kf6 Kb3 Kf5 h4 Ke4 h5 Ke3 f5 d5 b6 a5 b7 d3 c5 g4 f6 g5 c6 a4+ Ka3 g3 b4 g2 h6 d2 h7 d4 c7 g4 b5 g3 b6 d3 f7 Na6 b8Q Nf6 f8N Qd7 b7 Ne4 Ne6 Ng5 Ng7 Re8 h8N Re6 Qe1 d1R Nf7 d2 Nh3 g1R Ne5 g2 Nc3 Qd3 Rb1 Qh7 Nf4 Rc1 Rh6 d1Q Rg6 Qc2 Ra1 Bd7 c8N Be8 Nd6 Nc7 Rb1 Ra5 Nfd5+ Kd4 e4 Nb5+ Kb4 a3 Ne3 a2 Qc7 a1Q Bc4 f1Q b8R f2 Bb3 Qab2 Rc8 Bf7 Re8 Qfd3 Qd2 f1Q Rf6 Re1 Rd1 Re2 Re1 Bh5 Rg6 Ra6 Rf6 Rb6 Ka4 Rh1 Rg6 g1R Rh6 Rc6 Rf6 Rgg2 Ndf5+ Kc5 Rh6 Rd6 Rf6 Rd5 Rd6 Rhg1 Nb1 Rh1 Qda5 Rhg1 Nc3 Rh1 Ned1 Qh3 Nde3 Rhg1 N5g4 Rh1 e5 Rhg1 e6 Rh1 Nh4 Kd4 e7 Rhg1 Nhf5+ Kd3 Rdd8 Re6 Rd6 Kd2 Ncd1+ Kd3 Ne5+ Ke4 Nc3+ Kf4 Nh6 Kg3 Nhf5+ Kh2 Rb8 Rh1 e8B Kg1 Bg6 Rd1 Rbd8 Rc1 Re8 Rhh2 Ra8 Rd2 Re8 Rd5 Qd7 Re2 Qdc7 Rhg2
5q2/N3B1bb/B2bn3/r2nQK2/3Rr1NQ/4BkNr/R3qnp1/2bB1B2 w - - 0 1 illegal: No possible last move
rQ2N2R/2Nnq1qQ/6r1/k2N2q1/1bb1Nr1b/2Q4q/1NpK4/nB3B1R w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 Kd7 d4 f5 h4 a5 b6 c5 b4 g5 d6 Kc6 d7 g2 d5+ Kb7 h5 f4 b5 g3 h6 g4 d6 f3 e5 c4 e6 f2+ Kd2 a4 e7 a3 e8B a2 h7 Nc6 Qb3 Be7 Qc3 Bh4 Nh3 g1R Na3 g2 Bg6 g3 Ng5 Nb4 Bb1 Nf6 Ne4 Rf8 h8Q Nc2 Qh7 Qe7 d8Q Be6 d7 Ng8 Rh2 Rf4 Qf8 Nf6 d8N+ Kc8 b7+ Kc7 b8N Kb6 Rh3 Nd7 Na6 Bg8 Nb4 Ka5 b6 Bd5 Bd3 f1Q b7 Qf3 b8N Qg4 Rh1 Qh3 N8a6 Be6 Qb3 Bf7 Ne6 c3+ Ke2 Bg8 Nec7 Bc4 Qfg8 Rd1 Qgh8 g1B Qb8 g2 Ne8 Bc5 Nac7 g1Q Nbd5 Qgg5 Qb2 Rg1 Q2b3 Rg3 Kd1 Qge5 Bf1 Bb4 Qb2 Rg6 Qc1 Bb5 Qe3 Q5g5 Nc4+ Ka4 Nb2+ Ka5 Rh2 Bc4 Rf2 Rg4 Rf8 Rf4 Rh8 Nd4 Bc2 Nb3 Rc1 a1Q Bb1 Qhg3 Qd3 c2+ Ke2 Qg2+ Ke3 Qa3 Qc3 Na1 Re1 Qh3+ Kd2 Qa2 Bd3 Qa4 Rh1 Qc6 Be2 Qcf6 Bf1 Qfg7
2B3B1/2qq1b1Q/2b3r1/1N1k3n/r4pnQ/3br1Bn/2B2RN1/RQ1B1r1K w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 b4 Ke7 c4 Kd6 e4 a5 b6 f5 b7 h5 g6 h4 b5 d3 b6 g2 Kf2 a4 g7 h3 Bb2 d2 Qb3 d1Q Qb5 a3 Bd4 f4 Qh5 a2 Be2 h2 Nc3 Ra4 Qh4 Nh6 g8B Qc7 Nf3 g1R Ne1 g3+ Kf3 g2 e5+ Kc6 e6 d5 c5 Nd7 b8Q Ba6 b7 Nf6 e7 Nh5 Nb5 Ng4 Bf2 d4 Qa7 d3 b8Q d2 Bg3 Rh7 e8B+ Rd7 Bh7 Kd5 c6 Re7 Beg6 Re6 Bd3 Rg6 Bc2 Rf1+ Qf2 g1N+ Kg2 Re4 Qfa7 Re3 Qbb6 Bc8 Qbb7 Be6 Bg8 Bf7 Qab6 Qc1 Q7a7 Qd7 c7 d1B c8B Ngf6 Bed3 Be2 Bd1 Qcc7 B3c2 Bd3 Qbb8 Nh3 Rg1 h1B+ Kh2 Bf3 Rg2 Ng1 Rf2 Bfe4 Ng2 Ng4+ Kh1 Bf3 Rc1 a1R Rb1 Ra4 Ra1 Ke5 Qab7 Bc6 Q8a7 Rb4 Qa2 Ra4 Qb1 Kd5 Qa7 Rae4 Qa3 Ra4 Qae7 Nhf6 Qh7 Nh5 Qh4 Nh3+
qR5r/3q2b1/4QrNB/B1k3q1/1R1rp2b/2K3Nn/Q1n1b2Q/2N1N1Nr w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 f4 g5 g4 gxf4 g5 h6 Be2 h5 Bg4 hxg4 b4 Kd7 d4 Kd6 Kd2 e5 h4 a5 g6 c5 g7 e3+ Kc3 e4 b6 f3 b5 f2 h5 f1Q h6 e2 b7 e1B+ Nd2 a4 h7 a3 b6 c4 Rb1 a2 Qe2 a1R Rb4 Na6 b8Q+ Nc7 b7 Bf5 Qc8 g3 b8Q Nh6 g8N g2 Nf6 R1a6 Nh5 Bg3 Nb3 Bh4 Ng3 Qd1 Qa2 Ng4 Bh6 Bg7 Nc1 Ne3 Rh2 Nc2 Rh1 Rg8 h8N Bg4 Ng6 Be2 Qh3 Qe8 Qbc8 Ra4 Qh2 Ne6 Rb8 Ng5 Qe6+ Kc7 d6+ Kc6 Rb4 Rf8 Rb8 Rf6 d5+ Kc5 d7 Qh8 d8B Nh3 d6 Qd5 d7 Qb7 Nf3 g1R Ba5 Rf1 d8N Qd7 Nc6 Qhe8 Kb2 c3+ Kb3 Rd1 Nce5 Rad4 Ne1 Qec8 Rb4 Qcb7 N5f3 Rh8 Rf1 Qa8 Ng1 Na3 Rf3 c2 Ng2 Rf1 Kb2 Rfd1 Rfb3 Re1 Kc3 Red1 Nf3 Rh1 Nge1 Qde8 Rb8 Qd7 R3b4 Bc4 Nce2 c1Q+ Qc2 Bd3 Nfg1 Qg5 Nc1 Be2 Qca2 Nc2
3r1r2/2N3Rn/NnN1b3/B1q1Qp1n/n2q2B1/1b1B2Q1/KBb1r3/3RB2k w - - 0 1 illegal: No possible last move, all moves rejected
k5b1/q1Q2Q2/b2b1N2/3pQ2K/3NBb1Q/3b1bnr/1Qn1qR2/Nr2BR2 w - - 0 1 illegal: No possible last move
q3rN1B/5n2/2R1bR2/2KN3Q/7n/b1NQ3n/BrNp2nb/Nr3Brk w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 g4 d5+ Kc5 h5 c4 b3 b6 e5+ Kb5 d3 f6 b2 f7 d2 f5 d4 b7 d3 c5 h3 c6 h2 g5 h4 g6 h3 g7 Ra4 f6 Be6 c7 Ne7 c8N Nd7 g8B Nf5 b8Q Nh4 Qc7 Ba3 f8N Rb4+ Kc6 Kf4 f7 Kg3 Qb6 e4 Qe2 d1N Ne7 d2 Nd5 e3 Qa5 Ne5+ Kc5 Qa8 Nbc3 b1R Qd3 Kf2 Nd7 e2 f8N e1B Bb2 Nf7 Nf3 Ne3 Nd4 Neg2 Rg1 h1N Nc2 h2 Ra2 Ne3 Rg7 Neg2 Rg6 Kg1 Rf6 Nf2 Qab5 h1R Ba1 Bc1 Ra6 Nh3 Rc6 Ba3 Qh7 Qa5 Qh5 Rh7 Na4 Bf5 Nf4 Nd8 Ba2 Qa7+ Kd5 Re7 Rh6 Nf7 Qd3 Qa5+ Ndc5 Re8 Bh8 Qa8 Rf6 Bg3 Nb3 Be6+ Kc5 Kh2 Nc3 Rg1 Nfd5 Kh1 Nba1 Bb8 Nh7 Bh2 Nf8 R4b2+
1B1R1b2/qqNN3b/3NqnQ1/1b2B3/2NQr3/b1pR2Kq/Nr2k3/nR6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 Kd6 d4 g5 e4 f5 b6 c5 b5 a5 b7 c4 h5 f4 b6 g4 h6 f3 h7 a4 Ra2 c3 Qd2 f2+ Ke2 a3 Qh6+ Nf6 Rd2 a2 Rd3 a1Q Qg6 Qc7 Na3 Nd7 b8N Nc5 b7 Nb3 Nd7 Ra4 b8B f1B+ Ke3 Qa2 Kf4 Ba6 Ne2 g1Q Bd2 g2 Nc1 Bb5 Kg3 Rg8 h8Q Na1 Qh4 Qb3 Na2 Be2 Bh6 Qf1 Bg7 g1B Qh8 Be3 Rg1 Qf5 Rb1 Bc1 Qh4 Bd1 Bh8 Bc2 e5+ Ke7 d6+ Ke6 Nc4 Kd5 e6 Ke4 e7 Qb7 e8N Ba3 Nc7 Rb4 Nb2 Qe6 Nc4 Rb2 Bg7 Rh8 d5 Rh7 Bh8 Re7 Bg7 Nh7 Be5 Nf6 Ndb6 Re8 d7 Re7 d8N Re8 Qh8 Re7 Kg2 g3 d6 Re8 d7 Re7 Kg1 g2 Kh2 Re8 Kg3 g1Q+ Kh4 Qe3 Nf7 Kf3 d8R Ke2 Nd7 Qea7 Kg3 Qh5 Nfd6 Re7 Rf3 Bf5 Rd3 Be4 Qg5 Bh7 Qg6 Qhh3+ Kf4 Qhg2 Bd4 Ng8 Nc8 Qgh3 N8d6 Qed5 Qhg7 Re3 Qe5 Qde6 Qc5 Qbg2 Be5 Qgb7 Qd4 Nf6 Re8 Qhh1 Rd8 Re4+ Kg3 Qhh3#
B1k1q2R/3qB2Q/2b2n1b/nn2K2N/r2rnp1R/1r2NRR1/1Rr5/1QQ5 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 c5 Ke4 h5 g4 f5+ Ke5 f3 d4 h3 e4 h4 d6 b3 g5 f4 g6 b2 d5 f2 g7 c4 b6 c3 b7 c2 Ra3 h2 Nc3 b1Q Bg2 f1R Nge2 h3 Ng3 Rh7 Nh5 Na6 b8Q Qa2 Qb1 Nf6 g8R Bb7 Rg3 Bh6 Qd3 Rg7 Nd1 Nc7 Ne3 Rd1 Rb3 Rc8 Ba3 c1N Rb2 Nb3 Qdc2 Nb5 Qcc1 Rc7 Bb4 Kc8 d7+ Kb8 d6 Qa7 Rf1 h1N Rff3 h2 Bc5 Qc8 d8Q Nf2 d7 h1R Be7 Bc6 Qg8 Qe8 Qh7 Rh3 d8R+ Kb7 Rd3 Na5 Rg4 Kb8 Rh4 Kc8 Rg3 Qh8 Bd6 Kb7 Nd5 Bd7 Rg6 Be8 Kf5 Nc4 e5 Kc8 e6 Qb7 Rc3 Rd4 e7 Rc6 Rg5 Ra6 Bh1 Ra4 Bc5 Na5 Ke5 Bd7 Rg2 Qd8 e8R Rg4 Rg8 Qe8+ Be7+ Qc6 Rg1 Rg2 Rh8 Rf3 Rcb3 Rc3 Ra3 Rc2 Rah3 Rg3 Rf1 Rb3 Ne3 Qb7 Rg3 Qa7 Bc6 N2e4 Ba8 Bc6 Rff3 Qd7
1R2nb1n/bR1K2Q1/qb3q1N/7B/1bRpQ1rk/1Qn3R1/2nR2B1/3r3N w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Bb7 Ke1 Be4 Bg5 f4 Ra1 Bf5 gxf5 hxg5 Kd2 d3 Kc3 Kf7 Kd4 Kf6 Kd5 a5 b4 d2 c4 g4 e4 Kg5 h4+ Kh5 f6 g5 f7 f2 b6 d6 Ke6 f3 c5 d5 b7 a4 b5 a3 c6 a2 c7 g3 c8R g2 b6 g4 e5 g3 Na3 Ra4 Rh2 Bb4 f8Q Nc6 Qe7 Ba5 Nc4 Nf6 Qb3 d1N Nh3 g1B Ne3 g2 Ng4 Ne8 Rc1 a1B Rc3 Bb2 Rc7 Qa8 Kd7 Nd8 R7c6 Ra1 R6c4 Rg8 Rd3 Ba3 e6 Nc7 Qe8+ Nf7 e7 Qa6 Qa8 Be1 e8B Bf8 Re3 Beb4 Rec3 Kg6 h5+ Kf5 Re3 Nc3 h6 Rd1 h7 Kg6 Rd3 Kh5 Nh6 Rg4 h8Q Kh4 Qg7 Nh8 Bf7 Ne8 Bh5 Rc1 Rd2 Rd1 Rh1 Bh2 Rg1 Bc7 b8R Bd8 b7 Bb6 Rbc8 Ba7 R8c7 Bb6 Be2 f1Q b8R f2 Bf3 Ba7 Qc6 Bb6 Qe6 Ba7 Qe4 Qf6 Rcd4 Q1a6 Rdc4 f1N Rcb7 Ne3 Nf2 Nc2 Nh1 Bb6 Re1 Ba7 Re3 g1B Bg2 Bf2 Rf3 Bfb6 Rg3 d4
N2BkNb1/3rN1Qq/3q3r/1r1pBQr1/2r1R3/1Qr2rR1/2n1K3/Q4nQ1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Qd1 f4 Ng1 f3 Bh3 Bd6 Bg4 Bf4+ gxf4 hxg4 h4 f1Q c4 d5 b4 g5 e4 a5 f5 a4 e5 a3 b6 f2 b5 a2 c5 g3 b7 d3 h5 g2 c6 g4 f6 g3 b6 Ra6 e6 Kf8 c7 Rh6 f7 Ra5 e7+ Kg7 f8N Kf7 Rh4 Ra7 Ne2 g1R Nbc3 g2 Ng3 Nf6 Nb5 Qd6 Re4 Na6 b8B Ke8 b7 Be6 Nf5 Bg8 Qb3 Nb4 c8Q+ Kf7 Qbc3 Ng4 Nc7 Nh2 Na8 Nc2 Rb1 a1R Rb3 R1a4 Qa1 Rb4 Bb2 Rb6 Be5 Rb5 Bc7 Qb1 b8Q f1R Bd8 Rf3 Qb6 Re1 Qg1 Ree3 Rc3 Rd7 Ra3 Rf6 h6 Ke8 h7 Rh6 h8Q Nf1+ Kc3 Ne1 Qg7 d2+ Kd4 d1R+ Rd3 Bh7 Qc4 Bg8 Qb3 Nc2+ Kc3 Re2 Rde3 Rc1 Kd3 Rg3 Rf3 Rf2 Rfe3 Rg4 Rg3 Rf3+ Ke2 Rgf4 Qh1 Rc3 Qg1 Rff3 Qh2 Nb4 Rh3 g1R Qf2 Rg4 Rg3 Rc4 Qfd4 Qg6 Qg1 Qh7 Qbb2 R1c3 Qba3 Nc2 Q3a2 Qb4 Qb3 Ra7 Ng6 Kd7 e8Q+ Kc8 Qee7 Rg5 Qef6 Qd6 Nfe7+ Kd7 Qf5+ Ke8 Nf8 Rd7
5Nk1/2N4b/1nn1b2n/Nqbp4/QNn2K2/Q1bRNBB1/R1b5/4Bn1r w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 h5 b4 d5 c4 f5 e4 Kf7 g6+ Kg7 c5 h4 b6 f4 b7 h3 c6 h2 b5 d3 c7 f3 Ke3 a4 b6 d2 e5 f2 e6 g2 e7 a3 e8N+ Kh6 g7 Kh7 Qa4 d1B Nc3 g3 Na2 Nc6 b8B Ba6 c8N Bc5+ Kf4 Bc2 b7 Qa5 Ne2 g1N Bd2 g2 Nc7 Nh6 Nb6 Qb5 Be1 Nf3 Nec1 g1N Bg2 f1N Nc4 Nfe5 Nb4 a2 Bf3 Kg8 Nb3 Nd7 Nba5 Nb6 Ne3 Rh7 Rd1 a1B Rd2 Bc3 Rd3 Kf7 g8N Rh8 Nf6 Kf8 Be4 Nf3 Nh7+ Kg8 Nf8 Nfe5 Bf3 Nec4 Qa3 Bg7 Rg1 h1B Rg2 Rh7 Re2 Bc3 Qa4 Bb1 Ra2 Bc2 Ba7 Rh8 b8Q Bc8 Qa8 Be6 Bb8 Rh7 Bg4 Be4 Bf3 Ng4 Qa7 Rh1 Qa6 Bh7 Qa3 Qa4 Qb5 Qb3 Qba4 Nh6 Na8 Nf5 Kg4 Nce7 Na6 Bg7 Bbg3 Bc3 Kf4 Qb5 N8c7 Nc6 Nb4 Nh6
k1KR2Q1/2rRrn1B/r2N3N/1Nq2RBR/3n4/Rqp5/r5r1/qqQ1b3 w - - 0 1 illegal: No possible last move, all moves rejected
BNq2r1b/1bQBq1R1/B2BB3/4Rp2/q1b1n1Q1/3bR2K/2qb1k2/N3r3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 c4 Ke7 b4 Kd6 e4 Ke5 c5 h5 b6 a5 b7 d5 b8R f5 c6 g2 Kf2 h4 c7 h3 Kg3 d3 b5 Kd4 b6 d2 e5 Ke3 b7 h2 e6 d4 g6 d3 g7 a4 e7 a3 e8B a2 Qc2 Qe7 Ne2 g1B Qa4 Nf6 g8B Bg7 Bb2 d1B Na3 d2 Bc6 Bc2 Nd4 d1Q Be6 Rf8 Ba6 Bh8 Bg2 Bd3 Nc6 Qb1 Be5 Qc2 Bd6 Bd7 Rb1 a1Q c8B Bc4 Kh4 g3 Kh3 Ne4 Rb5 Kf2 Re5 Be8 Bf3 g2 Bcd7 Bd3 Rc8 Bf7 Rc7 Rae8 b8Q Qaa2 Ra7 Qab3 Qab4 Qa4 Qc7 Bg8 Ba2 Bgc4 Nb8 Ke3 Rb7 Bf2 Rb1 h1B Rb3 g1Q Rc3 Qgb1 Bg2 Qcc1 Nc2+ Ke2 Na1 Qbc2 Ra3 Be3 Bb3 Kf2 Bf3 Bb5 Bbe6 Bd2 Rc3 Bdc4 Re3 Bd3 Qd4 Bbc4 Ra7 Nc5 Ba8 Bb7 Qg4 Ne4 Nc6 Qca3 Nb8 Qc5 Qa5 Qc8 Qc7 Bbd5 Rb7 Bc6 Ra7 Bb7 Qb6 Bcd5 Bc6 Qed7 Rg3+ Kf1 Bf7 Nc5 Re1+ Kf2 Bg8 Re2 Be6 B5c4 Bcb5 Bbd5 Qd8 Qe8 Rg7 Bb7 Qc7 Re5 Bc6 Qe7 Bcd7 Be2 Rd3 Re4 Rd5 Bed3 Re5 Re2 Rg1 Re1 Rg3 Ne4 Rf3+ Ke2 Re3+ Kf2
1Rqnn2b/5R1Q/b1Q4B/q1qB4/rbpk4/1qRn4/1NQ1R3/3NnK1R w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 h4 g5 Rh2 a5 Rh3 Ra6 Rh1 Rg6 Rh2 g4 Rh1 Rg5 hxg5 fxg3 e4 Kd7 b4 Ke6 d4 f5 b6 c5 d5+ Ke5 b5 h5 g6 g2 d6 h4 d7 f4 b7 g3 g7 c3 b6 c4 Qe2 h3 Bd2 h2 Nh3 g1N Qe3 a4 Qd3 a3 Nf2 f3 Nd1 g2 Ra2 c2 Ne3 c1N Nd1 Nf6 g8Q Nc6 b8R Ne8 b7 Bb4 Qc2 Qa5 Nb2 Nd8 Nc3 Kd4 e5 Rh7 e6 f2+ Kd1 Rh8 e7 Nf3 Qgh7 g1Q Bh6 Ne1 Bg2 f1Q Bd5 Qh3 Kd2 Ncd3 Ke2 Qgg3 Ncd1 Qgc7 Ra8 Qcc5 b8R Ba6 Ra7 Qe3+ Kf1 Qe6 Ra1 a2 Rc1 a1B Rc7 Qec6 Rcb7 Qc8 Ra7 Nf7 d8Q Rf8 Qd6 Nd8+ Ke2 Rf7 Qc6 Rg7 Kf1 Rg8 Rg1 h1Q Rc7 Qh2 Rh1 Qd2 Rd7 Qc3 Ra7 Qb3 Rc7 Nd6 e8R Rh8 Re6 Ne8 Rf7 Rg8 Qb1 Rg2 Rc3 Rd2 Re2 Rc2 Na4 Ra2 Nab2 Ra4 Qc2 Nc1 Nd3 Bb2 Qd2 Ba1 Rc2 Bac3 N3b2+ Ncd3 Reh2 Ke5 Qg2 Bd4 Rc3 Be3 Qd2 Bg5 Qg2 Kd4 Qc2 Bf6 Re2 Bh8
4N1bQ/4Q3/1Bb1NQqr/2R3p1/k1q2Q1r/3q4/bQ2b1Rb/K2rb1RB w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 b4 fxe4 h4 a5 d4 axb4 h5 cxd4 f5 Nh6 f6 Nf5 gxf5 Nc6 Nh3 Ne5 Ng1 Ng6 hxg6 Qa5 Qd2 Qb6 Qd1 Qd8 Kd2 b5 c4 e5 Kc2 d5 Kb2 Kd7 a4 Kc6 f7 h5 g7 d3 g8Q e3 c5 b3 a5 h4 f6 d2 a6 b4 a7 e4 Qh5 d1B Ne2 Kb5 c6 h3 c7 d4 Qgh7 d3 Nf4 e2 Ra4 e1B Ng6 e3 Nd2 h2 Ne4 e2 Nf4 d2 Ka1 Bd6 f8Q Be6 c8R Bg8 Rg1 h1B Qhe7 Rh6 Ne6 Bh2 f7 Qd3 Nf6 Bc6 Bg2 Qg6 Bh1 b2+ Ka2 b1B+ Ka1 b3 Ne8 Rb8 a8Q Ba2 Rag4 Rb6 Qh3 Rh4 Qb8 Ka5 R4g2 Ka4 Qg7 Qd3 f8Q Ra6 Qff6 Qg6 Kb2 Rb6 Kc3 b2 Qbg3 b1Q Qgf4+ Qbe4 Qh8 Ra6 Kb2 Qc4 Qb3+ Ka5 Rb8 Qgc2+ Ka1 Bf3 Nc5 Bf2 Qd7 e1Q Qfh6 Qee6 Qe7 Bde2 Rc8 d1R Qbb2 Be1 Q6g7 Qe3 Qgf8 Rah6 Qf8f6 Qee4 Ne6 Q2d3 Rc7 Qg6 Rc8 Bb1 Be3 Ka4 Bb6 Be4 Rc5 Bc6 Qbc1 Ba2 Qb1 Rd2 Qbb2 Rd1+
R3b3/R1n2q2/q2N1RnK/1RbrbnQB/k6p/Br2p3/1B6/1r2NRQ1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 Ke3 c5 Kf4 h5 Kg5 b3 g4 h3 d4 h4 f4 h2 b6 e3 b7 b2 f5 e5+ f6 e2 d6 Kc6 d7 Kb5 d5 c4 d6 e1N Ra7 e4 Be2 e3 Nd2 b1R Ngf3 Qc7 d8B Na6 d7 Nc2 b8R+ Ka4 f7 c3 Bf6 Ne7 d8R Bd7 Ba3 Be8 Ne1 Ng6 Nc4 Bc5 f8R Qf7 Rb5 Rb8 Rf1 h1Q Nd6 Qhb7 Be5 Rg8 Kh6 Rb3 g5 Nd4 Bg4 c2 Bh5 c1B Qg4 Bd2 Qg1 Bc3 Bg7 Qb6 Bh8 Rb7 Rda8 Qa5 Bf6 Nc7 Be5 Qa6 Rf6 Nh8 g6 Rb8 g7 Ng6 Kg5 Rh8 g8Q Rb1 Rf1 Nf5 Bf6 Be5 Bg7 Qc4 Rf6 Rh7 Bh8 Rd7 Qd5 Rb3 Qdg2 Qf7 Bg7 Nd4 Kh6 Rb6 Qg5 Rb7 Nc8 Rd5 Nd6 Nf5+ Kh7 Bg3 Rb6 Ka5 Re6 Rb1 Rb4 Qf8 Bgb2 Be5 Rf6 Rb8 Rb6 Ka4 Rb3 Nfe7 Rb6 Qf7+ Kh6 Rb7 Rc6 Rb4 Rb6 Rb3 Rb5 Nf5+
2nB4/1N1RpRnB/q2b2n1/6pQ/2Q3nr/nKr1N2k/R2R1R1N/4br2 w - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 g4 hxg4 b3 a5 b6 a4 Ke2 a3 Ke1 Bb7 Qd2 Bc6 Qd1 Ba4 bxa4 Ra6 Bd3 Ra5 Bf1 Ra8 Kd2 Kf7 h4 Ke6 c4 Kf5 Kc2 d5 f4 g5 a5 g3 h5 g2 b7 a2 c5 d3+ Kb3 d2 a6 e3 h6 d4 h7 d3 c6 e2 a7 Kg4 c7 Qd6 c8Q+ Qe6+ Qc4 Qf7 Nf3 g1N Rh2 e1B Na3 Nf6 Rf2 Ne2 f5+ Nf4 Nc2 Nbd7 b8N Ne8 f6 Nb6 Nc6 Rc8 a8R Qe6 f7 Bg7 f8R Be5 Na5 Bd6 Rf7 Ng7 Ra7 Rc5 Be2 Nc8 Nb7 Kh3 Ne3 Ng6 Nh2 Qf6 Bh5 Rc6 Qe2 d1N Bd2 Qe6 Bb4 d2 Ba5 Nb2 Bd8 d1N Bf3 Qf6 Be4 Rc5 Rc1 a1R Rc2 Rc7 Rd2 Rc1 Qc5 Nc4 Raa2 Na3 Qcc4 Rc5 Bc2 Rf5 Bb1 Rf4 Bd3 Rf8 h8R+ Rh4 Qh5 Rc2 Rfe2 Nf2 Rh6 Ng4 Rf2 Qf3 Rh8 Qc6 Rg8 Qa6 Bf5 Ne5 Bh7 Ng6 Rh8 Bc7 Rd7 Bd6 Rd2 Rc1 Rff2 Rf6 Rf8 Rc2 Rf7 Rc1 Rg2 Rf1 Rgf2 Rc3+
1kn1N1b1/n3qQ2/b2n1B2/2Bp1nKN/2rRR3/Np3q1Q/2N1n2N/4r1R1 w - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 f4 c5 e4 cxd4 e5 f5 gxf5 e6 Bh3 Be7 Bg4 Bf6 exf6 hxg4 Kd2 b5 a4 d5 c4 Kd7 h4 Kc7 c5 g5 f7 d3 Ke3 d2 f8Q b3 h5 e5 f6 b4 c6 b2 a5 g3 a6 g4 h6 g2 h7 e4 f7 b3 f5 g3 Kf4 e3 f6 e2 a7 e1N Ra4 Be6 Rd4 Qe7 Kg5 Bd7 Qf3 d1Q Be3 Be6 Na3 b1B Qh5 Bg6 Qh3 Bd3 Nf3 g1N Nh2 Ne2 Rg1 g2 Qe8 Bb5 f8N Nc3 Qf7 Qf3 Ng6 Nc2 Nf4 Ba6 Nh5 Nb5 Re4 Kc8 c7 Nc6 Bc5 Ne3 Nc2 Rb8 a8N Nca7 Nb6+ Kb7 c8N Nf5 Nc4 Nbd6 N4a3 Kc7 Re2 Rb4 Re4 Rc4 Rd4 Kb8 Re4 Ngh6 Rd4 Re8 h8B Ng8 Re4 Qf8 Bg7 Nge7 Bh8 Ndb5 Nd6 Nec8 Rd4 Re7 Ne8 Nbd6 Qg8 Qc3 f7 Qf3 Qg6 Qg7 f8R Bg8 Rf7 Re2 Re7 Re1 Ree4 Qf8 Bf6 Qe7 Rf1 g1N Qf7 Ne2 Rh1 Nc3 Rg1 Ne2
3N1Q1R/q1p1bR2/kNNq3r/1qR3n1/q1p3qn/b2NK3/4BN2/3Q2Br w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 d4 Kd7 Kd2 Kc8 e4 Kb7 b4 h5 b6 f5 g5 a5 g6 h4 d5 a4 d6 a3 e5 h3 b5 f4 d7 f3 e6 f2 g7 h2 e7 a2 e8Q Nh6 g8R Na6 Nf3 g1Q Be2 f1Q Nc3 g2 Rg5 Qff2 Rc5 Nf5 Ne5 Be7 Nd3 Nh4 Ne4 Rh6 Qf8 Rc8 Rb1 a1Q Rb3 Qfd4 Nf2 Qg4 Ke3 Qa4 Bb2 Qe8 Bd4 Qeg6 Rb2 Qd6 Rb1 Qe1 Rc1 g1B Ra1 Qeb4 d8N+ Ka8 b7+ Ka7 b8N Qbb3 Rg5+ Nc5 Nd7 Qb2 b6+ Ka6 b7 Ne6 Rc1 Qbb5 Rc5 Ng5 b8N+ Ka7 Nbc6+ Ka6 Kd2 Rb8 Nb6 Rc8 Nh3 Bf2 Rf1 h1Q Rc3 Bg3 Rf7 Qg1 Nhf2 Be5 Rb3 B5f6 Be3 Bb2 Bd4 Ra8 Ke3 Ba3 Kd2 Bf6 Nh3 Rh5 Qf1 Bb2 Nd5 Nf5 Nc1 Rb8 Re3 Rh6 Nd3 Qb7 Rb5 Ba3 Qb1 Qa7 Rc5 Rh4 Qc2 Rb1 Nb6 Be7 Re6 Nh7 Rh6 Ng5 Rh8 Rh6 Bf2 Nh4 Ke3 Qc1+ Qd2 Qb2 Qc2 Rh1 Bg1 Qab4 Nhf2 Qa4 Qd1 Qbb5
bQ4K1/r2B2R1/n1qN1R1Q/4kbB1/pRqr2B1/2R1rp2/2n3n1/3N1n1R w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 a5 e4 f5 b4 h5 b6 d3 g6 d2 b7 a4 g7 f4 b5 g2 b6 g3 c3 h4 Nh3 g1N Be2 g2 Na3 Nf6 g8R Nd5 Rg7 Qf6 Nb5+ Ke5 Bg4 Nf3 Nf2 g1Q Nd6 Na6 b8Q h3 b7 h2 Qe1 d1N Qd2 Rh4 Rb1 Qg3 Rb4 Nd4 Qe3 Nc2 Bd2 f3 Qh6 Ra7 Bg5 Nf4 Rb6 Ng2 Rc6 Nab4 Kc5 Qh3 c4 Nde3 Nd1 Qf4 Qa8 Qhg3 b8R Nf1 Rb7 Qe1 Qb8 Qc3 Rb5 Bb7 Rbb6 Na2 Rb4 Ba8 Nf5+ d6+ Kb6 Qce3+ c5 Na1 Rb2 Qc3 Bh5 Qcc1 Rg1 h1R Rb5 R1h2 Rh1 Ne1 Rb2 Re2 Rb3 Ra5 Kc7 Nb4 Kd8 Re3 Ke8 Ng2 Kf8 Ra7 Kg8 Na6 Rb4 Qc3 Rcb6 Nc2 c6 Rg4 c7 d5 c8R+ Qc7 Nc3 d4 Rf6 d3 Nd6 d2 Nd1 Qd7 Rc3 Qc6 Rb5+ Kd4 e5 Rh4 e6 Rg4 Rb6 Ke5 e7 Rh4 e8B Qfc4+ Kf8 Rhe4 Bg4 Rd4 Bed7 Nce1 Nf2 d1B Rb4 Bc2 Nd1 Bh7 Rb1 Nc2 Rb4 Q4b5 Kf7 Bf5 Kg8 Qbc4+
Q1B5/2br3N/1q1p3B/2N1b1n1/NQnk3q/3r1R2/3Q2pN/KRNb2bn w - - 0 1 legal: proof: d4 a5 e4 h5 e5 h4 Ne2 Ra6 g3 hxg3 d5 Re6 dxe6 g2 b4 g1R a4 Rh7 f4 Nf6 c4 Na6 c5 Rh5 f5 Rg6 c6 bxc6 b5 Ng8 f6 exf6 Na3 Rg3 Nb1 Rb3 b6 Rb5 axb5 Nb8 Be3 Rh4 Bc1 Rh8 Kd2 Ke7 Kc2 g5 Kb2 f5 h4 g4 b7 a4 h5 f4 h6 f5 b6 a3+ Ka2 c5 h7 g3 Ng1 c4 Nd2 c5 Qa4 c3 Ndf3 c2 Qb4 g2 Bd2 c1Q Ba6 Qc4+ Kb1 a2+ Kb2 Nc6 b8Q Nf6 b7 Ne4 Rh4 Qb6 Qb3 Na5 Bb4 Ng5 Rc1 a1B+ Kb1 d6 Nh2 f3 Bd2 f2 Qa8 f1R b8N f4 Rd1 f3 Ne2 f2 Rh3 Qh4 Qb4 c4 Nd7 c3 Nc1 Nc4 Rf3 c2+ Ka2 Bc3 Nc5 Bg7 Na4 Rd8 h8Q Rd7 Qh6 Rh1 Re1 f1N Be3 Bd2 Ka1 Ng3 Ref1 Bb7 Rg1 Be4 Bc8 Bd3 Rd1 Be2 Rdf1 Bd1 Re1 Kd8 e7+ Kc7 Bf4 Rg1 Be3 Nh1 e8N+ Kd8 Nf6 Ke7 Bf4 Ke6 Ne4+ Kf5 Nec5 Bc3+ Qb2 Ba5 e6 Be5 e7 Rf1 e8N Rf2 Na6 Rd2 Nf6 Rd3 Ref1 Ke6 N6c5+ Kf5 N1b3 c1B Nh7 Bcd2 Nc1 Be3 Qc3 Bg1 Qd4 Nb2 Qb4 Nc4+ Ka2 Nh3 Ng5 Qb5 Ne2 Bc2 Rb1 Bc7 Nh7 Bd1 Nc1 Qb6 Bd2+ Bf4 Ka1 Ke5 Qe6+ Kd4 Qe2 Bg3 Bh6 Be5 Qed2 Ng5
qqB1qN2/QR3n1r/r2pp3/Q1Q1B2b/5B1R/3Qb2Q/2nN4/K1bkq3 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Kd2 Kf7 f4 Kf6 h4 g5 c4 b3 h5 g3 h6 b2 Kc2 g4 h7 g2 b6 g3 b7 Qc7 c5 Ra3 c6 Ra6 Ne2 g1B Qd3 g2 Rh4 Qd8 c7 Nh6 Nd2 Qe8 Kb1 Nc6 b8Q Be3 Qa7 g1Q Bh3 Nb4 Ra5 Nc2 Rb5 Qg2 Rb7 Nf7 Bg4 Rg8 h8Q+ Rg7 Qh5 Rh7 Bh3 Bh6 Bg4 Kg7 f6+ Kh8 f5 d6 Nf4 Bd7 c8Q e6 Qcc5 Bc6 Be2 Bf3 Ng6+ Kg8 Qg5 Bh5 Nf8+ Kh8 Qg3 Qd5 Qh3 Bhg5 Qdb5 d3 Qa5 Qdc6 Bf1 Qa8 Bg2 Qce8 Bc6 Bh6 Bd7 Bhf4 Bc8 Bg5 Nf3 d2 Ka2 d1Q Nd2 Qe1 Kb1 Ne5 f7 Kg7 f6+ Kh6 Ng6 Rg7 f8Q Nf7 Qg8 Rh7 Nf8 Bgf4 Qgg4 Bg5 Qgf5 Bgf4 Ka2 Bg5 Qd3 Bgf4 Kb3 b1Q+ Kc3 Qbb5 Bb2 Qb6 Ba1 Qbd8 Kb2 Qc7 Ka2 Qcb8 Be5 Kg5 Nb3 Nh6 f7 Bc1 Nd2 Be3 Nd7 Qh1 f8B Nf7 Bfg7 Qf1 Nf8 Qe1 Qda3 Bg4 Bh6+ Kf5 Nb1 Ke4 Bhf4 Bh5 Q3c3 Bg1 Qcg3 Bge3 Nd2+ Kd3 Qg6+ Ke2 Qd3+ Kd1 Kb1 Nd4 Ka1 Nc2+
Bk1r2NQ/n2Q2rn/5Bb1/1r1Kp2q/5R2/bp2b2R/B2Brb2/2B1NN2 w - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 Ke2 Kd7 Ke3 c5 Ke4 Kc7 f4 e5 g4 h5 d4 b5 f6 b4 g5 c4 g6 h3 f5 c3 g7 h2 f7 c2 d6+ Kb7 d5 a2 f6 h4 d7 h3 d6 Ra3 Nd2 Nc6 Ngf3 Rb3 Ne1 Qe8 d8N+ Kb8 d7 Na7 Bg2 Bd6 f8Q Qh5 Rb1 a1B f7 Bd4 Nf1 Bf2 Kd5 Rh7 Bd2 c1B Ra1 Bdc5 Ra4 Ba3 Bf3 Bce3 Nc6+ Kb7 d8B Bf5 Qe8 Bg6 Ne7 Kb8 f8B Rb2 Bc1 Ra2 Qd4 Re2 Qd7 Rh8 Qh4 Rh7 Kd6 Nf6 g8B Rh8 Ba8 Nh7 Ba2 Rg8 Kd5 Rg7 Ng8 b3 Rg1 h1R Bb4 h2 Rg3 Rg1 Rf3 h1R Rh3 Rg4 Bbd2 Rb4 Bf6 Rb6 Rc4 Rg1 Rf4 Rg5 Bd8 Rf5 Bg5 Rf8 Be7 Rd8 Qf6 Rf7 Qh8 Rg7 Bf6 Rb5+
3r4/BkrR3K/2n2n1n/1pB3bn/4RN2/B1R2n1q/1pq1Q1B1/1q1BN1Q1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 d4 Kd7 Kd2 Kc8 Ke3 f5 Kf4 h5 e4 c5 a4 b5 e5 b3 d6 c4 e6 h4 d5 h3 a5 h2 g5 c3 d7+ Kc7 a6 c2 g6 Ra7 d6+ Kc6 g7 Ne7 Kg5 f4 g8Q f3 Be2 f2 Nf3 f1Q Ne1 g1Q Ba3 c1N Nc3 g2 Nd5 b2 Nf4 Nf5+ Kg6 Kb6 e7 Qff2 e8R Nd3 Re4 Nb4 Rc1 Qdh4 d8B+ Rc7 d7 Qh3 a7 Be7 a8B Nd5 Rc3 Bg5 Bde7 Nf6 d8B Nc6 Bec5+ Ka6 Ba7 Nh6 Bde7 Qc5 Qg7 Rd8 Qc2 Qf1 Bd1 g1N Qe2 Nf3 Rg1 Qcf2 Bec5 h1N Rg4 Qfh2 Rd4 Ng3 Rd7 Ngh5 Rh4 Ne4 Qd4 Nef6 Qg1 Ncd4 Be4 Nc6 Rg4 Kb7 Rh4 Nd2 Bg2 Nf3 Nd5 Q2g3 Re4 Qgh4 Nf4 Qhf2 Qd2 Qd3 Qe3 Qfc2 Qe2 Ng3 Kg7 Qb1 Kg6 Qdc2 Kg7 Ngh5+ Kg6 Nd5 Kh7 Ndf6+
QK3N1Q/1n1rNBp1/1n1Q1R2/1b1Q1RRn/5n2/3QB1n1/1q1p3k/2qr1q2 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 a5 Nc3 h5 Nb1 hxg4 b3 a4 b4 Bd6 Qd2 Bc7 Qd1 Ba5 bxa5 Qf6 Nf3 Qg5 Ng1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kc5 f5 c4 d5 h4 d3 e4 g3 h5 d2 b6 d4 b7 f3 h6 Kf4 h7 f2 a6 a3 a7 g2 e5 Kg3 e6 d3 e7 f4 e8Q f3 Qg6+ Bg4 Rh5 a2 Rg5 Nf6 Nh3 g1N Nc3 Nbd7+ Kc6 Qf8 Kc7 Kh2 b8Q Nb6 c5 Ne2 c6 Nf4 Nd5 Qa3 Ne7 Rd8 h8Q Bd7 Rb1 a1N Rbb5 Qb2 Rbf5 N6h5 Be2 Ng2 Nf4 f1Q Ne6 f2 Nf8 Nb3 Qb7 Nf4 Qd6 Rab8 a8Q Na5 Bf3 Be8 Bd5 Bd7 Qc2 d1Q Be3 d2 Bf7 Qdc1 Qb3 Be8 Qba6 Nb7 Qad3 Bd7 Qbd5 Be8 Qa7 Ra8 Qb8 Ra2 Qa8 Rd7+ Kb8 Ra1 c7 Qg1 c8R f1N Nc6 Rc7 Q6e5 Qcc2 Qda6 Rd1 Qad3 Ng3 Ne7 Bb5 Qee6 Rd7 Rc6 Qcc1 Qee5 Nc8 Rcf6 Nb6 Qed6 Qf1
3rN3/1qpB3k/brQ3R1/n2pb2q/3bNB2/3N1b2/1K1QBbq1/2BR2B1 w - - 0 1 illegal: No possible last move
6k1/1NQ1Qb1r/1b1NKQq1/n1Q3q1/q1B3R1/2B2p2/nQp1B3/2q1Rb1n w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 h4 g5 Rh2 a5 Rh3 Ra6 Rh1 Rg6 Rh2 g4 Rh1 Rg5 hxg5 fxg3 d4 h5 Kd2 c5 Ke3 f5 Kf4 Kf7 Ke5 f4 b4 a4 e4 g2 b6 h4 d5 f3 d6 g3 b7 h3 d7 c3 b5 c2 g6+ Kg7 b6 a3 Qd6 a2 Ke6 c4 e5 h2 Nd2 c3 Be2 Nc6 b8Q Nh6 b7 Na5 Nh3 g1N Nb3 g2 Nc5 Kg8 g7 Ng4 Ng5 Rh7 Nge4 Qg5 Bb2 c1Q Qbc7 c2 b8Q Nf2 Bc3 Ba6 d8Q Bb5 Qbb6 Be8 Nb7 Be7 Qdb4 Bc5 Ned6 Bd4 Qa7 Bb6 Qf6 Qg6 Rb1 a1Q Qb2 Qa4 Qc5 Qcg5 Re1 Qc1 Qb8 Qgg5 Qbc7 Qg6 Bd3 Ne2 Rhg1 Qcg5 Ba6 Nc1 Be2 h1B Kd5 Qgh4 e6 Na2 e7 Qhg5+ Ke6 Qc1 Rd1 Qgg5 Rd4 Qg6 Re1 g1Q Rc4 Qg1g5 Rf4 Bg2 Rg4 Bc6 e8B Be4 B8b5 Bf1 Bbc4 Bc6 Qe7 Be8 Qec7 Rh3 Qe7 Nh1 Qcc7 Kh7 g8Q+ Kh6 Qgf7 Rh2 Qc5 Rh5 Qd8 Rh4 Qf8+ Kh7 Qfe7+ Kg8 Qdc8 Rh7 Q8c7 Bf7+
1R1Q1rnQ/q1r1QB2/2pR1Nq1/1Q1p2r1/5Nb1/1B3r2/1nK2k1q/QR2n3 w - - 0 1 legal: proof: d4 d5 h4 g5 c4 gxh4 a4 dxc4 d5 b5 axb5 Ba6 Ra2 Bb7 Ra1 Bc8 e4 Nc6 f4 Qd7 e5 Qh3 d6 Qe6 d7+ Kd8 Bd2 Qf6 Bb4 Nb8 Ba3 Bg7 Bd6 exd6 e6 Ke7 Nd2 Qg5 Nb1 Be5 fxe5 Qh6 Be2 Qf8 Bf1 Qd8 Kd2 a5 g4 f5 b4 h5 g5 h3 b6 a4 g6 c6 b5 a3 b7 h2 g7 f4 b6 d5 Qc2 c3+ Kc1 a2 Qf5 c2 Bb5 h4 Ba6 f3 Qf4 h3 Qd4 f2 Bf1 Ra7 Ne2 Na6 b8Q Qe8 b7 Nb4 Kb2 c1N Nf4 Nbd3+ Kc2 Nb2 Nc3 Qg6+ Ne4 Ncd3 Rb1 a1Q Nf6 Qa2 Be2 f1R Bd1 Rf3 Rf1 h1R Rf2 Nh6 g8B h2 Bf7 Rg1 Qc3 h1Q Rg2 Qg8 Rg6 Rg5 Qa5 Qa1 Qb5 Qh7 Qa8 Rf8 b8R Rc7 Qaa6 Qa5 Qa8 Qb6 Qa1 Ng8 Rh6 Qa7 Rg6 Re8 Rh6 Qg6 d8Q+ Kf8 e7+ Kg7 e6 Rf8 e8Q Qh2+ Kc3 Bd7 e7 Bg4 Bb3 Rb7 Rh3 Rc7 Rg3 Kh6 Rg2 Re5 Kc2 Kg5 Qed7 Kh4 e8Q Rf5 Q7e7 Rg5 Rf2 Kg3 Re2 Qh3 Re6 Kf2 Rd6 Qg3 Qc8 Qh2 Qe8d8 Bh5 Qh3 Bg4 Qh8 Ne1+
5B2/6Kr/Q3bpQr/QrQr3q/1bq2Qq1/1R1p4/B1q1n1R1/1N3NBk w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Ke4 h5 b4 a5 c4 d3 g6 g2 c5 g3 b6 a4 b7 f6 b8B h4 g7 d2 c6 a3 c7 h3 b5 a2 b6 h2 b7 Bb4 Ba7 Ne7 b8Q Rh6 Qc2 d1Q Qc5 Nc6 Ba3 Nd4 Nf3 g1R Nfd2 d5+ Kf4 g2 e4 Qb3 e5 Qg8 Bc4 Rd1 Nf1 Qc2 Rg1 h1Q Qbb5 Rd3 Qa5 Ne2+ Kg4 Bd7 c8Q Rb8 Q8c7 Rb5 Qb8 Qf7 g8Q Qh2 Qg6 Rd2 Bd3 d4 Qa8 Qc4 Bc2 Rh8 Bb3 Qhh7 Qg5 Qc2 Qf4 Rd3 Qb7 Rdh3 Bb6 d3 Qba8 Qh7 Q8a6 Rh6 Ba7+ Kf7+ e6+ Kg6 Nc3 Bc8 Rb1 a1R Ba2 Qf7 Rb3 Rb1 Qe7 Rd5 Qec5 Rb2 Nb1 Qe8 Kf3 Kh5 e7 Be6 Ke3 Qf7 e8Q Qg6 Qg8 Qg4 Qf7+ Kh4 Qg6 Kh3 Bb6 Qb5 Ke4 Qh5 Qcc8 Qbc4+ Bd4 Be1 Bf8 Bb4 Qcc5 Be1 Rc3 Rb5 Rb3 Bb4 Qg8 Bf7 Qgg5 Rd7 Kf5 Rd5+ Qe5 Be8 Ke6 Bf7+ Ke7 Be6 Qef4 Q2c3 Qg6 Qc2 Ng3 Kh2 Be3 Bd7 Kf7 Bg4 Kg7 Be6 Rf1 g1Q Rf2+ Qg2 Nf1+ Kh1 Bd4 Qgh3 Rg2 Q3g4 Bg1 R8h7+
b3Q2n/r2R1b2/1Bn1p3/1Q1B1nkN/3n3n/pQQN1Q1R/7b/3BKnn1 w - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 d4 fxe4 a4 bxa4 h4 c5 f5 cxd4 g5 Qb6 Qg4 Kd8 Qd1 Qf6 gxf6 g5 f7 g4 Ke2 Ra6 Kd2 Rg6 Ke1 Rg5 hxg5 Bb7 Qd3 Ba6 Qd1 Bc8 b4 h5 c4 d5 c5 d3 f6 g3 g6 a3 c6 d2+ Ke2 a2 b5 a4 b6 h4 g7 g2 b7 e3 Rh2 a3 Bb2 h3 Nf3 g1N+ Kd3 d4 Rf2 h2 Rg2 h1B Ne5 e2 Nc3 Nh6 g8B Rh7 Qb1 d1N Kd2 e1N Be2 d3 Rg7 Ne3 Ne4 N1g2 Bd1 Nh4 Ng3 Nf1+ Ke1 Be6 Bd4 Bf3 Nh5 d2+ Kf2 Bh1 Qb3 Bc4 Rc1 a1N Rc3 Nc2 Rh3 Bf3 Be3 Nd4 Nd3 Bh1 c7+ Kd7 Bg5 Ke6 Be3 Nbc6 b8Q Kf5 c8Q+ Be6 Q8b5+ Bd5 Rg4 Bg7 f8Q Nf7 Re4 Nh8 f7 Be5 Qfe8 Bh2 f8Q+ Rf7 Rf4+ Kg5 Qc7 Rg7 Qca5 Bf7 Qac3 Nc2 Bb6 N2d4 Rf6 Rh7 Rd6 Rg7 Bg4 d1N+ Ke1 Nde3 Rd7 Nef5 Bf3 Rh7 Bd1 Rg7 Bh7 e6 Bg6 Nd6 Be4 N6f5 Bg2 Nb8 Bgf3 Ba8 Bd5 Nbc6 Qfb4 Nde2 Qe4 Ned4 Qf3 Bg8 Rd8 Ra7 Rd7 Bf7
B1R3n1/1K1Rq1n1/1BrQ2Nr/Bp2n3/N2pQ3/QB4rq/1n1n2Bk/3n4 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 Ba3 g5 Kc1 b6 Kd2 Bd6 Bc1 Bb7 Kd3 Bf3 Kd2 Bg4 h3 f3 Bg2 Bf4+ gxf4 Bh5 Bf1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 Kd3 Kf7 Kc4 Ke6 Kb5 h5 a4 d5 e4 b3 c4 g2 c5 h4 a5 d3 a6 h3 g5 d2 g6 h2 g7 b2 f5+ Ke5 a7 Kf4 f6 Kg3 e5 Qc7 e6 Rh4 e7 Ra4 e8Q Qf4 f7 Qd6 f8B Rd4 c6 Rc4 c7 Rc6 c8Q Qe7 Nh3 g1R Nf4 Nd7 Ka6 b5+ Kb7 Ne5+ Qc7 d4 Qb3 d1N Nc3 b1N Na4 Rd8 a8B Nbc3 Bg2 f1N Ng6 f2 Qa3 Nb2 Bd2 Rdd6 Rc1 Ne3 Be1 Ncd1 Ba5 f1N Rc4 Nh6 g8B Nd2 Rc3 Rf6 Bb3 Ng8 Rc1 Nf5 Rc4 Qd8 Bc5 Qe7 Bcb6 Ng7 Rc5 Rfd6 Rd5 Re6 Rd7 Rf6 Qcd6 Re6 Bgd5 Kh3 Bf3 Rg3 Re1 h1Q Bg2+ Kh2 Re3 Rc2 Rc3 Rf6 Rc8 Rc6 Qf8 Re6 Qf3 Qf1 Qe4 Qd3 Nh8 Rh6 Ng6 Qf3 Rdc7 Qg4 Rd7 Qh3
1Q1rb3/q2N1N1n/QpB4p/b3b1Q1/KnBkn1N1/1RN1R3/3r1p2/N2q4 w - - 0 1 legal: proof: g4 a5 b4 axb4 c4 d5 cxd5 e5 f4 exf4 g5 Ne7 g6 Ra6 gxh7 Rh6 Nc3 Rg8 h8N Rh7 Ng6 Rgh8 Nb1 Ng8 Na3 Rh3 Nb1 R8h7 Nh8 Ra3 Nh3 Ra6 Ng1 Ra8 h4 Nf6 h5 Ng8 h6 Ra4 Na3 Ra6 Nb1 Ra8 Bb2 Ra5 Bf6 Ra3 Bg5 Rg3 Ng6 Rh8 h7 Rg4 Bh6 gxh6 Ne7 Rg7 Ng6 Bf5 Na3 Bd7 Nb1 Bc8 Qc1 Qd6 Qc5 Nc6 Ne5 Be6 Nd3 Kd7 Qc4 Nf6 Kd1 Be7 Qb3 Ra8 Ne5+ Ke8 Qa4 Bc8 Ng6 Bf8 Nh8 Qd8 Ke1 Ng8 Qd1 Nb8 e4 Kd7 a4 Kd6 d4 f5 Kd2 c5 Kc2 b6 Kb3 f3 a5 c4+ Ka4 b3 e5+ Kd7 e6+ Kd6 a6 f2 e7 f4 e8N+ Ke7 d6+ Ke6 a7 Kd5 d7 f3 Nf6+ Kc6 d5+ Kc5 d6 c3 Ng4 b2 Bc4 f1N Qe2 c2 Nf7 c1B h8N f2 Ng6 Qe7 d8Q Nd2 d7 Nc6 Na3 b1Q Nc2 Nf6 Ra3 Nde4 N6e5 Nh7 Rb3 Nb4 Rhh3 Bb2 Na1 Kd4 Rhe3 Qd1 Qc7 Rg6 d8Q+ Rd6 Nd7 Bg7 Qg8 Bc3 Qb8 Be5 Qg5 Rd5 Nh3 Ba6 Nf4 Rd6 Nd5 Bb5+ Ka3 Be1 Nc3 Rd5 Nf8 Be8 Nd7 Rd6 Ka4 Bd2 Be6 Be1 Qa6 Bd2 Bc4 Rd5 Qd6 Rd8 a8B Be1 Bc6 Bd2 Nc5 Qa7 Qb8 Na2 Nb1 Ba5 Nd7 Nb4 Nc3 Rd6 Rf3 Rf6 Rg3 Rf3 Rh3 Rd3 Re3 Rd2
3Rq1N1/NK1rNpkb/Q4b2/qp6/5B2/1p2q2Q/1Nn1bnN1/r4BRQ w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 gxh5 d5 cxd5 c5 Qd3 cxd4 Qd2 Nf6 Qd1 Ng8 Kd2 g5 Kd3 b5 Ke4 g4 a4 b3 h4 d3 h6 d2 d6 f3 Kd5 f2 e4 g3 h5 g2 h7 Bf5 d7+ Ke7 e5 Nc6 a5 Bg4 h6 Nd4 e6 Kf6 a6 Qc7 d8N Be2 a7 Be7 Na3 Qa5 Nh3 g1Q Nf4 Bb4 e7 Qh2 e8N+ Ke7 Nc4 Kf8 Ng2 Nc2 Kc6 Bd3 Nb2 Nd4+ Kb7 Qg1 Nf6 Be7 Nc6 Nc2 Ra4 Rd8 a8Q Be2 Qe1 d1Q Na7 Qd4 Bd2 Qe3 Rd4 Qh2 Rg1 Qhe5 Qc8 Bd3 Qe6 Bf5 Qa6 Rd7+ Kc8 Bd8 Qa1 Qe8 Rd5 Q3e5 Bf4 Qe3 Qc1 Ne7+ Kb8 Nc8 Ng8 Nd6 Qe1 Ne4 Ka8 Rd6 Kb7 Bf6 Rd2 Rd4 Qb1 Ra4 Rd8 Ra3 Qd1 Ra1 Qh5 Bg6 Qh1 Bf5 Ne7 Rg8 h8N Bh7 Qh3 Rg5 Ng8 Rd5 Qh1 Bf5 h7 Kg7 Ng6 Rd2 Bc4 f1B N6e7 Nf2 Bd3 Be2 h8Q+ Kf8 Q8h5 Kg7 Q5h3 Bh7 Bc4 Bh5 Bf1 Be2 Qc8 Rd5 Qch3 Rd7+
1N1N2Nr/1BBp4/r3RbBr/p1n1qQ2/3qn3/NpQ1NK2/1r6/k5bR w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 a4 b5 Qd3 b4 Qd1 Ba6 b3 Bb5 axb5 Qa5 Bc4 Qa3 Bd3 Qxb3 Bf1 Qb2 Rh2 Kf7 Ke2 Kf6 g4 Ke5 f4+ Kd5 g5 Kc4 b6 h5 b7 a5 g6 e5 f6 b3 f7 d3+ Kf3 h3 f5 h4 g7 Bc5 f8Q Ne7 g8N Nd5 f6 Nc3 f7 Na6 Ne2 d2 Qe1 d1Q b8N Be3 Ra2 Bg1 Bf4 Qd6 Qd2 Kb4 Na3 e4+ Kg4 e3 Ng3 e2 Kf3 e1B Nf5 Bef2 Bd3 Bd4 Ra1 Ra7 Re1 Qa1 Re6 Qe1 Qg7 Bf6 Qg5 Qc5 Bd6 Qe5 Ne3 Qd4 Bg6 Ka4 Nb5 Qce5 Qf5 Ra8 f8N Ra7 Re8 Ra8 Ne6 Ra7 Rg2 h2 Nd8 h1R Re6 h3 Rg5 Rh2 Rh5 Re2 Rh6 h2 Rh7 Nb1 c4 h1R c5 Nc3 c6 Nc5 c7 Ra6 c8B N3e4 Qc3 Rb2 Bc7 Rhh2 Bb7 Rh4 Na7 Ka3 Nb5+ Ka2 Na3 Ka1 Rh5 Rg4 Rh2 Rgh4 Rh1 R4h6
Bn5r/NB1q1n1k/Q1p1N1N1/K1nR3n/3Nr3/2R1QpQb/1r4p1/6nN w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 b3 f5 Bb2 h6 Kc1 f4 Be5 f3 Bf4 Bd6 Bg5 Bf4 gxf4 hxg5 Kb2 Kf7 Kc3 Kg6 Kb4 a6 h4 c3 d4 c2 e4 c1N f5+ Kh7 d5 g4 e5 g5 d6 g3 b6 g4 h5 g2 d7 g3 h6 Qf8+ Ka5 Nf6 d8N Qe8 b7 Be6 b4 Ne4 f6 Qg6 b5 Qf5 b6 Qh3 f7 Bd7 f8Q Rg8 e6 Qh2 e7 Bc8 e8B Rg4 Qd2 Qh4 Qa3 Qh3 Nc3 Rf4 Ne6 Qh5+ Nb5 Ng5 Nh3 g1R Nbd4 g2 Bc6 Qf7 Qde3 Ne2 Rc1 Re4 Rc3 Qd7 Bd5 Nf7 Qd6 Kg8 h7+ Kh8 Rh2 Rh1 Qc6 Ng1 Be2 f1N Nf2 Ra7 Rh5 Ng3 Rf5 Rh6 Nh1 Nh5 Qb5 Ra8 Bc6 Rg6 Rd5 Rg8 Nf8 Kg7 h8N Ra7 Nfe6+ Kh7 Ng6 Rh8 Ka4 a5 Qa6 Ra8 Kb5 a4 Ka5 a3 Bd3 a2 Bc2 Qd6 Bb3 Nd7 b8Q a1N Bb7 Ra7 Ba8 Rb7 Ba4 Qe7 Bc6 Nb3+ Ka4 Nbc5+ Ka5 Ra7 b7 Nde5 Ng7 Bh3 Nge6 Ned7 Qf8 Rh4 b8N Re4 Bcb7 Qd6 Nbc6 Nb8 Qe7 Qd8 Q7g5 Qd7 Bc8 Rb7 Na7 c6 Qg3 Rb4 Bcb7 Rb2
2r3Q1/1QR2bR1/NB1qkNRp/2q3r1/n1p5/5n1R/1Br2rp1/n4RNK w - - 0 1 legal: proof: d4 b5 c4 d5 g4 dxc4 a4 f5 axb5 fxg4 Bg2 e6 Bh3 Ne7 Bf1 Ng8 h4 g5 d5 g3 d6 g4 Bg2 Bh6 Bd5 Bg5 hxg5 exd5 Kf1 Kf7 Kg2 a5 f4 c5 e4 c3 b4 h6 g6+ Ke6 d7 c4 b6 a4 b5 c2 e5 d4 g7 d3 b7 a3 b6 d2 f5+ Kf7 f6 a2 e6+ Kg6 f7 Kf6 e7 Ra5 e8Q Rg5 Rh3 Ne7 g8R Nd5 Kh1 Nc3 Bb2 c1R Rg7 Nc6 b8N Nd4 b7 Rc2 Na6 Na4 Qg8 Ke6 b8R Nf3 Rb7 Qc7 d8B Qd6 Qc1 d1R Rc7 Rdd2 Nc3 Rf2 Qb1 Bd7 Nd5 Be8 f8R+ Bf7 Qh7 Rg8 Nf6 Rh8 Qf1 Rg8 Qg2 Rh8 Rf1 a1N Rc6 Rg8 Bb6 Rh8 Ra8 Rc8 Rc7 Nd4 Qb7 Re8 Rb8 Rf8 Rg6 Rh8 Bc1 Rf8 Bf4 g2+ Kh2 Qd8 Bc1 Qd7 Bb2 Rh8 Rbg8 Qc6 R8g7 Rc8 Rh4 Qd7 Qg8 g3+ Kh3 Qd6 Ne2 g1Q Rh5 Rff5 Rh4 Qe3 Kg2 Rf2+ Kh1 Nf3 Rh3 Qec5 Ng1 g2#
5R1N/q2q2k1/1Rrn1p2/Bn2Q3/3p1bNp/QNBQ1bQ1/4q1b1/K2Q2q1 w - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 a4 c5 axb5 cxd4 f4 exf4 g5 g6 Bh3 f3 Bf5 gxf5 h5 f4 Nd2 Ra6 Nb1 Rg6 hxg6 Bh6 Nd2 Bg7 Nb1 Bf8 Qd2 d5 Kd1 h5 c4 f2 Kc2 f1Q e4 f3 b4 f2 Kb2 f6 c5 h4 b6 a4 c6 d3 b7 d4 b5 Qe7 e5 Qc5 e6 Qg2 e7 f1B c7 Qe4 g7 Kf7 e8N Bfh3 g6+ Ke7 b6 Bhe6 Nd6 Qee5 Nf7 Qh5 Nh3 Qc4 Nf2 Nd7 b8Q Qh7 b7 Nh6 g8Q Bd5 g7 Nc5 Ra3 Bd7 c8Q B7c6 Qg4 Ne4 Qb4+ Qc5 Bd2 Nf5 Bc3 d2 Qh2 d1Q b8B Ke6 Bc7 Bd6 Qg6 Qdh5 Nd2 Qe2 Rb1 Qb6 Qb8 Rc8 Qhg1 Bf4 g8Q Qg7 Rb3 Qa7 Ba5 a3+ Ka2 Qh7 Nh8+ Qhf7 Q8h7 Qfd7 Q6g3 Bb7 Ng4 Bdc6 Ka1 a2 Kb2 Bd5 Qa3 a1Q+ Kc2 Rc5 Qg6 Ke7 Qe5+ Kf8 Rb4 Bbc6 R1b3 Qae1 Kb2 Q1f2 Qd1 Qg1 Ka1 Rc4 Bb2 Nc3 Rb5+ Nd6 Q6d3 Bg2 Rb8+ Kg7 R3b6 Bb7 Rf8 Bbf3 Nb3 Ncb5 Bbc3 Rc6
n1nB1nR1/R1Nk3b/1Rq1p1bN/1RBqp3/5Q2/b5b1/R2KQp1r/B7 w - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 g6 axb5 f6 e5 fxe5 f5 Ba6 f6 Bc8 h4 Nh6 g4 Nf7 g5 Nh6 Bd3 Ng8 Bf5 gxf5 g6 Bg7 Rh3 Bh6 Rh1 Bf8 Ra3 a5 Bh6 Ra6 Ra2 Rc6 Ra1 Rc3 Bg5 Rg3 Bc1 Rg5 hxg5 Qb6 Na3 Qc7 Nb1 Qd8 c4 d5 b4 h5 c5 h4 g7 e6 g6 h3 f7+ Kd7 b6 h2 b5 a4 b7 d3 b6 d4 Ra2 f4 Bb2 a3 Ne2 f3 Nbc3 Ne7 g8Q f2+ Kd2 Bh6+ Nf4 Qc7 f8B Qc6 g7 Rh7 Rg1 h1B Qe2 Be4 Nd5 Bg6 Ba1 Bg5 Rd1 Rh2 Qf7 Bh4 g8R Bg3 Rb1 Bh7 Nh3 Bg6 Rab2 a2 Ng5 Bh7 Qf4 Bg6 Kd1 d2 Nf7 Bh7 Nh6 Bg6 Qe1 Bh7 Ke2 d1N Nc7 d3+ Kd2 Nc3 Qe2 Na4 Rb5 Bg6 Ra5 Bh7 Ra7 Bg6 Rb5 Bh7 Bd4 a1B Bc3 Bb2 Bd4 Na6 b8R Ng6 b7 Ba3 Ba1 Nb6 Be7 Nf8 Bd8 Bg6 Rba8 Bh7 b8B Bb7 Nd5 Rh1 Bd6 Nc8 Nc7 Rh2 Rb8 Ba8 R8b6 Bb7 Ne8 Nc7 B6e7 Na8 Nc7 Qh1 Bd6 Bbe4 B6e7 Beg6 Bd6 Ne7 c6+ Kc8 Bc5 Qf3 Nd5 Qg2 c7 Kd7 Nb4 Qc6 c8R+ Nc7 Rca8 Nc8 Kd1 d2 Nd5 Bb4 Ra2 Ba3 Raa5 Na8 Nc7 Bb1 Ra7 Bbe4 Qef3 Beg6 Ke2 d1Q+ Ke3 Qdd5 Qe2 Qc4 Kd2 Q4d5+
Q3B1r1/Qp1QQ3/B3p1Qr/4Bb2/3NK1pr/q5bk/1b5q/1nRNRb2 w - - 0 1 illegal: No possible last move
1B1qqr2/2r1p1r1/1k4BR/2rn1pR1/2Q1B1nr/R3QK2/2N1np1B/4NB2 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 d3 e3 gxf6 Qd2 f5 Qd1 f4 g4 d5 h3 d4 Kf2 d2 g5 Bg4 hxg4 d3 Nc3 Bg7 Nb1 Bd4 exd4 Qc7 Ba3 Qd7 Bc1 Qd8 a4 Kd7 c4 Kc7 g6 b5 a5 f5 c5 h5 g7 b3 c6 b4 g5 b2 d5 h4 g6 f3 a6 h3 a7 h2 d6+ Kb6 c7 b3 c8Q Nh6 g8B Qe8 g7 Rh7 d7 Nc6 Bf7 Nd4 g8R Rg7 Qe1 d1R Na3 b1N Qe3 d2 Nc2 b2 Qc4 Nc3 Ra3 b1R Bg6 Rb5 Bb2 Rb8 a8B Rc1 Be4 Rc5 d8B+ Rc7 Kg3 f2 Nf3 d1Q Nfe1 Nd5 Bc3 Qd3 Bb4 Ng4 Bd6 Rb1 Kg2 Rb5 Bg3 Rc5 Be5 Ne2 Kf3 Kc6 Bg3 Ra7 Bb6 Rc7 Ba7 Ra8 Bb8 Kb6 Rg1 h1R Rh8 Rh4 Rh6 Ndc3 Rg2 Qdd8 Bh2 Nd5 Rg1 Rd7 Bbe5 Rc8 Bb8 Rcc7 Rg3 Rd6 Rg1 Rf6 Rg3 Rf8 Rg2 Ngf6 Rg5 Ng4
NQ2K1R1/r1p2RB1/Q6n/4pqr1/1B2k2q/5nBp/BNqqN2r/4rB2 w - - 0 1 legal: proof: c4 a5 f4 f5 b4 axb4 e4 fxe4 f5 d5 g3 dxc4 Kf2 g5 Ke2 g4 Ke1 Bh6 Ke2 Bd7 Ke1 Bf4 gxf4 g3 h3 Ba4 Qf3 Bd1 Qb3 Bf3 Qd1 Bg4 hxg4 Kf7 Qe2 Kf8 Qd1 Ke8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 h5 a5 h4 g5 h3 g6 b3 a6 b2 g7 b4 a7 c3 f6 e6 f7 g2 f8B+ Kc6+ Ke5 c2 d4 e3 f5 b3 d5+ Kd7 f6 e2 d6 Kc6 d7 e1Q+ Ne2 g1Q f7 Rh7 Qd3 Nh6 g8B Qgf2 Nd2 b1R Rg1 b2 Bg7 Qdh4 Nc4 Qd2 f8B Rh8 Bf7 Rg8 d8Q Qf3 Ra3 Ra1 Be7 b1R Bb4 Ra2 Nb2 Rba1 Rg5 Qd5+ Kf6 Nd7+ Ke7 Ne5 Qf8 Nf3 Qb8 Qf5 Qa6+ Kd5 Rd3+ Ke4 Rd7 e5 Bc4 Qd3 Bf4 c1Q Bg3 Qcd2 Be6 Re1 Bf7 Rf8 Be6 Rf6 Ke8 Rg6 Rf7 Q3c2 Bb3 Raa1 Ba2 Rab1 Bg2 Rh1 Bf1 Rh2 Rf8 Re1 Rg8 Qff4 Rf5 Rg5 Rf7 Qf5 Qbc8 Rb8 a8N Rb7 Qb8 Ra7
2B1RKQN/4Nr2/8/kr1np3/1nQ1Rbp1/bQr1pQQ1/3Bp1bN/4q3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 h5 g4 c5 gxh5 cxd4 Ke2 e3 Kf3 d3 Qe2 dxe2 Kg3 Rh6 Kg2 Rh8 Kg3 g5 Kg4 a5 Kf5 d5+ Kg6 Kd7 Kf7 Kc7 b4 Kb6 f4 d4 h4 e6 c4 g4 h6 a4 h7 a3 f5 a2 f6 Bd7 h5 Ra7 c5+ Kc7 c6 Kb6 c7 Bg7 c8Q Qc7 h6 Qd8 Nc3 Nc6 Nf3 Nce7 Bd2 Qc7 Nh2 Nd5 Re1 Qd8 Qc4 Kb7 b6 a1B b5 Nb4 Nd5 Qb8 Ne7 Qe5 Bg2+ Bc6 Rhf1 Ra6 Rf4 Bb2 Re4 Ba3 Bh1 Bd5 Ke8 Ra5 f7 Ra7 f8Q Nf6+ Kf7 Rg8 h8N Bc6 h7 Bh6 Bf3 Nfd5 Bg2 Rg6 Qg8 Rg7+ Kf8 Ra5 Qf7 Qg3 Qf3 Bf4 Bf1 Kb8 b7 Ka7 Bg2 Kb6 b8Q+ Bb7 Nf7 Qf2 h8Q Qh4 Qg8 d3 Rc1 Qe1 Nh8 Ra8 Rb1 Ka5 b6 Rg5 Rc1 Ra7 Qd6 Bc6 b7 Rh5 b8Q Re5 Bc3 d2 Bh1 d1R Bd2 Rg5 Rc3 Rc1 Qe5 Na2 Qbb3 Nb4 Rd3 Rc3 Qc7+ Nb6 Rd8 Rb5 Re8 Rb7 Qe5 N6d5 Bg2 Bg5 Qeg3 e5 Bh1 Bf4 Qf1 R7b6 Rd4 Nc7 Bd5 Bb7 Be6 Bg2 Re4 Ncd5 Bc8 Rg6 Qff2 Rg7 Qff3 Rf7+
B5bq/3rp2p/p2r2r1/Rp2BK2/n3QNR1/4n3/B1NkB2n/1Q1N1b1B w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 b4 cxd4 h4 gxh4 b5 a6 Qe2 d3 Qg4 Bh6 Qd1 Be3 a4 Ba7 b6 Qc7 bxa7 Qc4 Bf4 Qxa4 Bc1 Qa2 Kd2 Kf7 Ke3 Kf6 Ke4 b5 f4 h3 g4 d6 c4 h2 g5+ Kg7 f6+ Kg6 f5+ Kf7 c5 d2 g6+ Ke8 f7+ Kd7 f8Q Kc6 g7 Be6 f6 Nd7 f7 Nh6 g8B Ng4 Nc3 Nb6 Bb2 Na4 Nf3 Rd8 Qb1 d1N Ne1 Rd7 Be2 Nde3 Rg1 h1B+ Kf4 d5 Nd1 d4 Nc2 Kd5 c6 d3 a8B Kc4 c7 Be4 c8B Bg2 Be5 Nh2 Bcb7 Bf1 Bh1 Qb2 Rg4 Kb3 Qd8 d2 f8N Rd6 Bf7 Rg8 Ng6 Rg7 Ke4 Rg8 Nf4 Rg6 Qc7 Bc4 Qc6 Be6 Nc3 d1R Qb7 Rd7 Qc6 R1d6 Nd1 Nb6 Ra5 Na4 Be8 Bg8 Bf7+ Nc4 Qc1 Qc3 Kf5 Qa1 Qe4 Qd4 Nb2 Kc3 Qb1 Kd2 Nd1 Qa1 Bh8 Qg7 Be6 Qf8+ Bf6 Qg7 Be5 Qh8 Bf7 Na3 Bb3 Nc4 Ba2 Ne3+
1n2NB1N/4r1N1/1bp4r/1p4Qn/1nRN1R1N/B1bp1p2/k1B1QK1q/6q1 w - - 0 1 legal: proof: f4 h5 e4 e5 g4 exf4 gxh5 b6 c3 a5 b4 axb4 d3 Bb7 e5 Be4 dxe4 bxc3 h4 Ke7 a4 Ke6 h6 d5 h7 g5 h5 f5 h6 g4 a5 g3 a6 d4 a7 c6 Nf3 g2 Kf2 b5 Rh4 c2 Bd3 Qf6 Ra4 Bc5 Rc4 Bb6 Na3 Ne7 Qe2 Nd5 Rg4 Qg7 Nh4 f3 Rf4 Nb4 Bb2 c1B Nc2 Bd2 Ba3 Re8 h8B Re7 h7 Qh6 Bg7 Bc3 h8N Qh5 Bf8 Qh7 Kg3 f2 Kf3 f1N Kf2 Kd7 e6+ Kd6 e5+ Kd5 Nf3 Qh2 Nh4 Rd7 e7 Ng3 e8N Re7 e6 Nh5 Rg4 f4 Ng7 f3 Rf4 Rc7 e7 Rb7 e8N Re7 Bh7 d3+ Nd4 Nd7 Bg6 Rc8 a8Q Nb8 Qb7 Rd8 Qc8 Rd6 Qg4 Rde6 Bf5 Rh6 Qg5 Na2 Ra4 Nb4 Bh3+ Kc4 Bc8 Bb2 Be6+ Kc3 Ba2 Ba1 Bb1 Kc4 Nc7 Bc3 Nce8 Qh1 Qd1 Qh2 Ra8 Nd5 Qc2 Ra7 Qe2 Re7 Bc1 Kb4 Bc2 Kc4 Ra2 Kb4 Rb2+ Ka3 Rb4+ Ka2 Rc4 Nb4 Ba3 g1Q+
Q7/bB1p2KB/1k3N1n/3Rq2p/1p1r1p2/n1r5/1NrR1RqQ/2RR2nN w - - 0 1 legal: proof: d4 a5 h4 c5 g4 e5 b4 g5 Bf4 b6 f3 Bb7 hxg5 Be4 fxe4 exf4 e5 axb4 Rh6 cxd4 Rh5 Qc8 Rh1 Qd8 Kf2 f5 Kf3 h5 c4 b5 e4 b3 a4 b2 c5 d3 g6 b4 c6 d2 g7 Qh4 e6 Kd8 e5 Kc7 a5 Rh6 e7 Ra7 e8N+ Kc8 c7 Kb7 c8B+ Kc6 g5 Na6 e6 Rh7 g6 Ne7 g8R Qh2 g7 Nc7 a6 Rh8 Na3 b1R Bd3 Nb5 Nh3 Rh6 Bb7+ Kb6 Nf6 Ng6 e7 Qg1 e8R Qh2 Nf2 Rb2 Qc2 d1N Re2 Nh8 Rc1 Bc5 Rf8 Ndc3 g8R Nf7 Rd2 Ne2 Rhd1 Ra8 a7 Rc8 a8Q Rc6 N6e4 Rhd6 Rg5 Nh6 Nf6 Rd4 Nh1 Rb3 Rf7 Rc3 Rf8 Kc7 Nc4 Ba7 Nb2 Na3 Rg2 Kb6 Rf2 Rc8 Re8 R8c4 Re5 Rc5 Qb3 Rc2 Qa2 R5c3 Rc5 Qg1 Rd5 Qe1 Kg2 f3+ Kh3 f4 Kh4 Ng1 Kg5 Qe5+ Kg6 Qb8 Kg7 Qe5 Rh2 f2 Bh7 f1Q Rhf2 Rc8 Qb3 R8c7 Qh3 R7c3 Qh2 Qg2+
2Nqk1B1/n1Q1pR2/4pq1p/1Np3n1/bNrn2RB/5n1Q/B1b1B2K/3B4 w - - 0 1 legal: proof: e4 b5 c4 g5 h4 gxh4 b4 a5 e5 axb4 e6 fxe6 Qe2 b3 Qf3 Ra4 Qd1 Ra8 d4 b4 d5 Ra3 Qd4 Ra5 Qd1 Rb5 cxb5 Bh6 Bb2 Bg7 Bc1 Bf8 d6 c6 Qd3 Bg7 Qd1 Bd4 Bc4 Bb6 Bf1 Bc7 dxc7 Kf8 Be2 Kf7 Bf1 Ke8 f4 d5 Kf2 d4 g4 d3 Kg2 d2 a4 c5 g5 h3+ Kh2 h6 b6 b2 f5 b3 f6 Rh7 g6 Bb7 c8B Qd3 g7 Qa6 f7+ Kd8 f8N Qa5 Be2 Qa6 a5 Bd5 b7 Nd7 b8Q Ne5 Qc7+ Ke8 Ra4 Qa8 a6 Nf6 g8B Nc6 a7 Ne4 Na3 b1N Nd7 b2 Qf1 d1B Nc2 Rf7 Nf3 Ng5 Bb7 Nd2 Rg4 b1Q Nb4 Be4 Nb6 Qb2 Nd4 Qd8 a8B Ba4 Nc8 Na7 Bd5 Bec2 Nb5 Rf4 Ba2 Qf6 Baf3 Rd4 Bd1 Rc4 Bfe2 Ndf3+ Kg3 h2 Qh3 Qa1 Rf1 h1N+ Kg2 Qc3 Bb2 Qh8 Bf6 Ng3 Rf2 Nf5 Kh1 Nh7 Bh4 Nhg5 Kg2 N5d4 Kh1 Nd2 Rf7 Qf6 Kh2 N2f3+
N2Qbq1R/3p4/BBRqq2Q/1p1r4/1R4b1/3Nnn2/q3R1pp/1R2Nk1K w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 h3 f5 Kd2 b5 Ke1 g5 Bf4 Be7 Bc1 f4 h4 Ra6 Qd3 Rf6 Qd1 Rf5 gxf5 g4 Bh3 Kf8 Bf1 Bg5 hxg5 Ke8 Kf2 Ke7 e4 Kd6 a4 Kc5 c4 h5 e5 h4 a5 h3 a6 b3 g6 b2 a7 h2 a8N d3 f6 Kd4 f7 d2 f8R Ke4 e6 Qb6+ c5 Nh6 g7 Qd6 g8Q Bb7 e7 Nc6 e8R+ Ne5 c6 Nf5 c7 Bd5 c8R Rh5 Na3 b1Q Nh3 Bf7 Nc2 Qa2 Bg2 Kd3 Qg5 Bg6 Rh8 g3+ Kf1 f2 Qd8 Rg5 Qh5 d1B Qh6 Bg4 Be3 B6h5 Re7 Be8 Bb7 Rh5 Kg2 Ke2 Rhc1 f3+ Kh1 f1Q+ Bg1 f2 Ne1 Rg5 Ba6 Rh5 R1c4 Rg5 Nc2 Qe1 Rb4 f1Q Rab1 Qf4 Rc6 Kf1 Bb6 Nf3 Re3 Qf8 Nf2 Q4d6 Nd3 Rh5 R1b2 Qe2 Nce1 Qae6 Rb1 Q2a2 Re2 Ne3 Ba7 Rd5 Bb6 g2+
K2N4/1pr3r1/NrQ1Nn2/2RB3N/1R3pN1/1p1b1rnp/3RB2b/k2b2Q1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 h4 e4 h5 e3 g5 Be6 Bb2 Qf6 Bd4 Qg6 Bf6 Bc8 hxg6 gxf6 Qc2 exf2+ Kd1 f5 Kc1 f4 Qb3 Bf5 Qd1 Bc8 Kc2 Kd7 Kb3 Kd6 Kc4 Ke5 Kb5 Kd4 e4 f5 a4 c5 Kb6 h5 e5 b3 a5 h4 a6 c4 a7 c3 e6 f3 g7 f4 e7 c2 e8Q c1R d6 h3 g6 Nc6 d7 Nf6 g8B Ba3 d8N Nh7 g7 Rc4 Ne6+ Ke5 d4+ Ke4 d5 Ke5 d6 Rc5 d7 Rb8 d8N Nd4 a8N Nf5 Ka7 Rc4 Nac7 Ng3 Nd2 Nf6 Qc6 Rh6 Be2 f1B Rh2 f2 Ne4 Bd7 Na6 Bc5+ Qb6 Be3 Ra4 Rc7 Rb4 Be8 Qb1 Bh5 Nf3+ Kd5 Ne5 Bc5 Bf3 Bd3 Ng4 f1R Rd2 Bg1 Be2 Bh2 Qd1 Rf3 Qdg1 Rbc8 Bf7 Rg6 g8R Rg7 Re8 Rc6 Re7 R8c7 Ka8 Rd6 Qb5+ Rc5 Rc7 Rb6 Qe8 Rc4 Rb5+ Rc5 Qc6+ Kc4 Rc8 Ne8 Nef6 Kc3 Rb4 Rc4 Rd1 Kb2 Rc7 Rc1 Rd2+ Ka1 Bg8 Bf7 Nh5 Nf6 Qe4 Bg6 Rc5 Bc2 Qc6 Bgd3 Nf8 Bd1 Bd5 Rc4 Nfe6 Re4 Ng5 Ree7 Nge6 Rc7
rB1R1r1b/1k6/1r2bn2/p1np1K2/2p2pQ1/p1Q3Q1/R1NQQ1r1/N2B2N1 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 h5 gxh5 b5 Ra3 bxa4 Ra2 Na6 Ra1 Nb8 b4 Qe7 c4 Qd8 c5 Qf6 b5 Qb6 cxb6 Bb4 Kf2 Bxd2 Kf3 Kd8 Kg4 a5 e4 c5 h4 g5 b7 Kc7 h6 c4 e5 d5+ e6 f3 h7 f2 h5 a3 b6+ Kc6 h6 f6 Be2 f1R Ra2 Re1 Kf5 Bf4 Qd2 g4 Bd1 Nd7 b8Q g3 e7 g2 e8Q Be5 b7 Bd4 Qee2 Bc3 Qg3 Bb4 b8N+ Kb7 Nc6 Ra7 Nd4 Ra6 Nc2 Be7 Bb2 Bb4 Be5 Rb6 Bb8 Bc3 Qeg4 Re7 Qde2 Bd4 Nd2 Rf7 Nb3 Rf8 Nba1 Bc3 Q3f4 Bd4 Qfd2 Be5 Rh3 Bd4 Re3 Bb2 Re8 Nc5+ Kg6 Bc3 Rd8 f5+ Kg5 Nf6 Kf4 Rhg8 h8Q Be6 h7 Nfd7 Qhd4 Nf6 h8Q Bb2 Ke5 f4 Qh2 Rh8 Q4c3 Rhg8 Nh3 g1R Qhg3 Rg2 Ng1 Rg7 Nh3 Rc7 Ng1 Rc8 Ba7 Ra8 Bb8 Bf7 Kf5 Bg8 Qcd3 Be5 Q3c3 Be6+ Kg5 Nh5 Kg6 Bh8 Kg5 Nf6 Kg6 Bf7+ Kf5 Be6+
B1B2BNR/kNpbn1Q1/2p2R2/1B1p4/4Q1r1/BrRrp3/n2rp3/K3b3 w - - 0 1 legal: proof: c4 e5 e4 h5 d4 f5 b4 a5 g4 axb4 c5 Qg5 c6 bxc6 gxh5 fxe4 Bb2 e3 Ba3 e4 Bc1 Qe5 dxe5 Ra3 Bb5 Ra7 Bf1 Ra8 f4 Kd8 a4 d5 h4 g5 f5 b3 a5 b2 e6 g4 e7+ Kd7 e8B+ Kd6 f6 Kc5 h6 e2 Kd2 Ra7 Kc2 Ra6 f7 Bd7 h7 Nh6 h5 Bg7 f8B+ Kb5 Nc3+ Kc4 Kb1 Nf5 h6 Ra8 a6 Ne3 a7 Bf6 Nb5 Be5 Qd4+ Kb3 Nf3 Nf5 Nd6 Bg3 Rh3 Na6 Nh2 Nb4 Nb7 Na2 Qe5 Rb8 a8B Ka4 Bg6 Bf2 Rc3 Ne7 Bf5 Kb5 Qg7 Rg8 h8R Kb6 h7 Ka7 Be6 Be1 Bf5 Be8 Bc8 Bd7 Qg6 Rg7 Qe6 Bg3 Na5 Rb3 Nb7 Rg8 Rf3 Be1 Rf6 Rc3 Qf5 Rc2 Qe5 Rg7 Rg8 Rd2 h8Q Rh7 Qg7 Rh3 Rh8 Ra3 Nf3 Rc3 Nh4 Rg3 Nf5 Rh3 Nh6 g3 Bg2 Kb6 Ng8 Ka7 Bf3 g2 Bh5 g1R Bg6 Rc3 Bh7 e3 Bd3 Be6 Qe4 Rg4 Ba6 Nb4 Ra3 Rcd3 Rc3 Bd7 Bc4 Na2 Bb5 Rd1 Kc2 b1R Ba3 Ra1 Kb2 Rac1 Rc5 Rcc3 Rc4 R1d2+ Ka1 Rb3 Rc1 Nf5 Rc3 Ne7
2rR1Q2/6b1/Kn2k3/BRR1rr2/2n1n1n1/RQqb2N1/QN3bn1/bb1R3B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 d5 h4 g5 b4 f5 c4 a5 e4 a4 b6 a3 e5 a2 e6 f3 b5 f4 c5 g3 c6 g2 b7 g4 b6 g3 h5 f2 h6 f3 h7 Nf6 c7 Ng4 Bh6 Ra5 Bg7 Nd7 Be5 Bg7 Nh3 g1B b8Q g2 b7 Nb6 Be2 f1R Bf4 Bf2 Na3 g1N Ng5 Nh3 Ne4 Ng5 Ng3 Ne4 Qd2 Rb5 Rd1 a1B Rh3 Kf6 e7 Bf5 c8Q Qc7 Qf8+ Ke6 Nc4 Rg8 h8R Ra5 Kc2 d3+ Kb3 d4 Kb4 Re5 Qa2 d2 R8h5 d3 Be3 Rh8 Bc5 Bg6 Ka5 Qc8 Ka6 Rg8 Rc1 d1N Bb4 d2 Ba5 Nde3 Nb2+ Nec4 Rd1 Qc5 Bd3 Qa3 Bc2 Qc3 Ba4 Bf5 Bc6 Bh7 Qc7 Bf5 b8R Bg6 Qb7 Bh7 Re1 d1N Rf5 Nde3 Rd1 Ng2 Rbd8 Nd7 Qbb3 Nb6 R8d5 Rh8 Rc5 Bg6 Rg5 Bf5 Qa8 Rc8 e8R+ Kf6 Reh8 Ke6 Rhd8 Bg1 Bb5 Nd6 Qe4 f2 Qf3 Qc1 Nh1 Ree1 Qb4 Nh4 Rc7 Bb1 Qf8 Re2 Ra3 Qc3 Bc6 Ree1 Rb5 Re5 Bg2 Ne4 Rbd5 Qc2 Ng3 Qc3 Bh1 Ng2 Qa4 Re1 Nf5 f1B Q4b3 Bfd3 Rb5 Rf1 Ng3 Rff5 Rcc5 Bf2
3Q2nr/4n1B1/4b1q1/bBk1B3/q1b3N1/1bRQNb2/rQ3bRB/2B1r1qK w - - 0 1 illegal: No possible last move, all moves rejected
1k3qrq/1N2BRN1/r1q3b1/b2RK1Qq/2q5/1R2Q3/1qN1n1N1/2Nnbn1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 f5 c4 a5 b4 h5 c5 h3 e5 h4 g5 a4 g6 f3 c6 a3 g7 f2 e6 f4 e7 h2 e8Q f3 Qee1 h3 Ne2 a2 Qdd2 Ra6 Nbc3 Nf6 g8N Ng4 Nd1 Ne3 Nf6 Rg8 Bg2 f1N Ba3 f2 Nh5 Bf5+ Be4 Qh4 Nc1 Bg6 b6+ Kc8 c7 Nc6 b5 Bb4 Qee2 Ba5 Ng7 Qf4 Bc5 Qf8 Be7 Kb7 c8N Kb8 Rb1 a1B b7 B1c3 Rb3 Bcb4 Rg1 h1Q Rg5 h2 Nd6 Qg2 Rf5 h1Q Rf7 Qh8 Qh5 Qh1 Qg5 Q1h5 Qe2 Be1 Qf3 Nc4 Ne3 Nb2+ Ke2 Q5h6 Ng2 Nd1 Qfe3 d3+ Kf3 d2 Kf4 Nd4 Ke5 Ne2 Bf3 d4 Bd5 Kc7 b8R d3 Rd8 Qh5 Rd7+ Kb8 b6 Qf3 Ba8 Qc6 b7 Ndc3 Qb6 d1Q Qbe3 d2 Rd8+ Kc7 b8N Qc2 Nb7 d1Q Rd5 Qb2 Nd7 Kc8 Ndc5 Kb8 N5d3 Qb1 Nb4 Qb2 Rd6 Qdd5+ Kf6 Qf3+ Ke5 Qfh5 Nc2 Nd1+ Qd4 Nfg3 Rd5 f1Q Qc3 Qfh1 Qd4 Nf1 Qc3 Qc4 Qd4 Nec3 Qe3 Ne2+ Rd4 Q1h4 Nf4 Rd6 Nc5+ Qb5 Bh1 Ra6 Ng2 Qb6 Nb7 Qc6 Rf3 Ndc3 Rd5 Qhc4 Rf7 Nd1+
q7/2NkrBNn/1R1bq3/2bbR1bq/3nr1N1/N1n1B1NK/b3Q3/1Q4qQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 Kg2 a5 e4 g5 b4 d5 h4 f3+ Kh2 f4 c4 d3 b6 f2 c5 g3+ Kg2 d4 b5 g4 h5 d2 e5 d3 h6 a4 c6 a3 e6 a2 e7 Ra7 b7 Nf6 h7 Be6 c7 Nc6 b8Q Bd5+ Nf3 Kd7 e8N Nd4 c8N Bd6 Ng7 Re8 h8Q Re4 b6 Nh7 Qe1 d1N b7 d2 Ne8 Nc3 Na3 d1Q Rb1 a1B Ne7 Ba2 Bc4 f1B+ Kg1 g2 Kh2 g3+ Kh3 Qa5 Bf7 Bfc4 Rb6 g1Q Nf5 g2 Neg7 Bd5 Nh2 f3 Ng4 f2 Be3 f1Q Ng3 Qf5 Qe2 Qe6 Rh2 Qf2 Rh1 g1B Rh2 Qfe1 Rf2 Bb2 Rf5 Bc1 Re5 Bd2 Bf2 Bg5 Be3 Nf6 Qh6 Bf2 Qh7 Qg1 Qbh8 Qa1 Qg6 Nh7 b8N+ Ke7 Na6 Kd7 Nc7 Rb7 Qe1 Qa8 Qh5 Qd1 Qb8 Qf3 Qb1 Ra7 Qb7 Qff5 Qa6 Qfg6 Qh4 Qh5 Qe2 Nb3 Bd2 Qf8 Nce8 Kc8 Bf4 Rd7 Nc7 Re7 Bc1 Bfc5 Be3 Qe1 Kg2 Kd7 Qh1 Nd4 Bg8 Qa8 Bf7 Bh4 Kh2 Qg1+ Kh3 Bg5+
b1B2r2/QNb1k3/4rNq1/6rq/K2bBq2/qR5q/2Q1N2n/RnB2bBB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 e4 h5 c4 f5 Kc2 d5 Kb3 f3 g4 d3 g5 h3 e5 f4 c5 h4 c6 a4+ Kc3 a3 Kb3 a2 e6 h2 b6 h3 c7 d4 e7 d2 b7 f2 g6 f3 g7 d3 Be2 f1Q Na3 f2 Bf3 Nc6 b8N Na7 Rb1 a1B Na6 Rh5 Nc5 Rg5 Be2 Nh6 g8Q Nb5 Ne4 Qd6 Bg4 Bb7 c8B Nc3 Nc4 Qg6 Bge6 Ng4 Qc2 d1R Ne2 d2 Bf5 Re1 Qg7 d1Q Na5 Qd3 Kb4 Bc6 Nb7 Qa6 Rg1 h1Q Qh7 Bg7 Nf6+ Kf7 e8B+ Ke7 b3 h2 Be4 Rb8 Rb2 Nb1 Bed7 Bd5 Bc6 Qa3+ Kb5 Qh3 b4 f1B Rb3 Q1f3 Rh1 Be5 Rg1 Qb2 Ka4 h1Q b5 Bc7 b6 Q1h2 Rh1 Qhh5 Rg1 Qfh3 Bh1 Bf3 Be4 Qf4 Nc5 Kf8 b7 Bh8 Qd7 Nh2 Qd4 Ke7 Qf2 Ba5 Qe3 Ra8 b8B Bc7+ Ba7 B3g2 Nb7 Qc3 Nh7 Bd4 Nf6 Qb2 Bcf5 Rf8 Bc8 Bc3 Qb6 B3e5 Qa6 Bd4 Bb6 Qbc3 Qa7 Qb2 Bd3 Bd5 Bde4 Qa3+ Kb5 Nd2 Nd8 Bc3 Bef5 Rg8 Bb2 Ba8 Nb7 Nc4 Ng3 Re6 Ne2 Bg2 Ra1 Nd2 Bc1 Bf1 Bg1 B3e5 Bfe4 Rf8 Nc5 Nb1 Nb7 Qb2 Kb4 Bd4 Ka4 Qa3+
nq2N2r/n2B1nQ1/1n2Q2B/1B3R2/2bNq3/4bBq1/1Nb1bkbK/rRB5 w - - 0 1 illegal: No possible last move, all moves rejected
QB1B3R/4qrn1/r3B1RN/Nkb3Q1/r2K2b1/n4N2/2r1bn2/1nB2Bnq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 h5 e4 a5 b4 f5 c4 f3 b6 Kc6 c5 f2 e5 a4 b7 h3 e6 h4 e7 a3 e8N h2 g5 h3 g6 a2 g7 f4 Qe2 f3 Bd2 Rh6 Nc7 Qe7 Be3 Ra4 Na8 Nd7 b8B Ne5+ Kc2 d3+ Kc3 d4+ Kb3 d2 Bc7 d1R Na3 d3 Kc3 d2 Bg5 Rc1+ Kd4 d1B Bd8 Rc2 Bc1 Bg4 Nb5 Nf6 g8Q Ne8 Qd2 Ng7 Qg5 Be2 Nd6 Re6 Nf7 Kb5 Rb1 a1N c6 Rh6 c7 Rha6 Bg2 f1N c8B f2 Nb6 Nd2 Nh6 f1R Nf3 Rf2 Be6 Rf1 Rb3 Nb1 Nc4 Rf2 Rg1 h1N Na5 h2 Rc3 Rf1 Rc8 Nf2 Bh3 h1Q Rg3 Rg1 Bf1 Rg2 Qh7 Rc7 Qe4 Rh2 Qa8 Nc2+ Kd5 Nca3 Kd4 Nh3 Rg2 Ng1 Rg3 Kb6 Rg2 Nd3 Rg3 Nf2 Rg2 Nc4 b5 Nca3+ Bc4 Qf7 Ng8 Rh7 Qe5 Bd7 Rg6+ Qe6 Bh4 Rh5 Nh6 Bb4 Rh8 Rf5 Bd8 Rf7 Ba2 Qf6 Bb3 Bh3 Be6 Qe7 Qg5 Bf5 Ke3 Kc5 b6 Kb5 b7 Rc5 b8B Bg4 Nf5 Rc3+ Kd4 Rc2 Nh6+ Bc5+
r2Q1n1Q/n4BN1/nK4RB/b2r1Br1/bn1Bn1R1/B3n3/R2r4/2qk2rN w - - 0 1 illegal: No possible last move
R1Q2NbQ/2Q4r/4QqR1/b4BbQ/nN1r1q2/1nb2b1K/1q4NB/bqk5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Ke6 h4 Ke5 e4 f5 b4 g5 c4 d5 b6 a5 b5 f3+ Kh2 f4 h5 a4 c5 f2 h6 d3 h7 Kd4 b7 g3+ Kg2 g4 b6 a3 e5 a2 c6 d2 c7 Ke3 e6 d4 e7 d3 e8N Qf6 Na3 Ne7 Rh4 f3+ Kh1 g2+ Kh2 Na6 b8Q Bh6 b7 Nd5 Rb1 a1B Nb5 Nb6 Nbd6 Nc5 Bb2 Nba4 Rh5 Bg5 Ne2 g1B+ Kg3 Be6 c8Q Bg8 Nf4 Nb3 Bh3 f1Q Ng7 f2 Nge6 Qe2 Nb5 f1Q Nbc7 Ra5 Rh4 Rd5 Be5 Rd4 Rh6 Bc3 Qe1 d1Q Rg6 d2 Ra1 Qb1 Nf8 d1B Ng2+ Kd3 Bd6 Kc2 Nd5 Kc1 Qbc7 Qb2 Qee6 Bf3 b8Q B1e3 Be5 Bd2 Nb4 Qf2+ Kh2 Qh4 Qb5 g3+ Kh1 Qhf4 Bf5 Nb6 Ra8 Na4 Nc6 Ba5 Nb4+ Bc3 Qe2 Bb7 Kg1 Be4 Qh5 Bf3 Ne3 g2 Bd6 Qfe4 Kh2 g1B+ Kh3 Bf2 Bh2 Bg3 Qca6 Be5 Ng2 Qf4 Qab7 Q2c2 Qbc8 Ba1 Nc6 Qcb2 Nb4+ Rc4 Q8b8 Bc3 Qbc8 Rd4 Qee5 Bgd5 Qee8 Rg8 h8Q Rg7 Qe2 Bg8 Qee6 Rh7
bNKbkq1q/2r3B1/8/bRQB3q/B1b1n2n/r3QN1R/2n2Q2/1Qn2q1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Be6 b7 Ra3+ Nc3 Na6 b8Q Rh7 c7 Nh6 c8Q Nc5+ Kd2 d3 Ke3 d2 Kd4 Nb3+ Ke5 d4 g8Q d3 b6 Nf5 b7 Nh4 Bb2 Nc1 Qc5 Bc4 Rb1 a1B Bg2 f1N Nb5 f2 Nd4 Ng3 Ngf3 f1Q Qba7 Ne4 b8Q Rg7 Qe2 d1Q Qgd5 d2 Qe3 Qde2 Ke6 d1N Qf2 Ne3 Nc6 Nc2 Qce3 Rf7 Bg7 Bc3 Qac5 Ba5 Rb5 Qed1 Qbb6 Qd4 Nb8 Qb2 Rg1 h1Q Qb7 Qh2 Bh1 Qb4 Rg3 Qb2 Bg2 Qhh1 Qbb6 h2 Rh3 Qd4 Bh6 Qh8 Bg7 Qhg1 Bh1 Qg5 Bg2 h1B Qb7 Be2 Qa2 Qgh5 Qb1 Nf6 Qa8 Bc4+ Qad5 Qc8+ Kd6 Qd8+ Kc6 Ne4 Kb7 Qd6 Kc8 Qf4 Be5 Bh6 Qa8 Rh7 Bg7 Qff8 Qad5 Bf4 Qd1 Bfc7 Qdd5 Bd8 Qd1 Kf7 e8B+ Ke6 Bc6 Kf7 Bd5+ Ke8 Qde1 Be2 Bb3 Bd3 Ba4 Bc4 Nd4 Qfe2 Qeg5 Nd2 Bh6 Rb7 Qge3+ Re7 Bg7 Qd1 Qeg1 Qf1 Be4 Bf3 Qh1 Bg2 Bb7 Bgd5 Nf3 Ne4 Ba6 Ba8 Bb7 Rf7 Bd5 Rc7+
N5K1/b2R1n2/n3k1qB/Qb2rqRQ/2N5/1bQ1BB1q/2Bn1qn1/B1b3r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 a5 Kg4 f5+ Kg5 d5 e4 h5 Kg6 f3 g4 d3 b4 d4 c4 h3 b6 f2 g5 a4 b7 d2 c5 a3 c6 f4 c7 h4 e5 f3 e6 a2 b5 h2 b6 h3 Bd3 f1N Na3 f2 Nc4 Bd7 c8Q Nh6 Qe1 d1N Ne2 Nde3 Bc2 d3 Nf4 d2 Rg1 d1B Qa5 Na6 b8B h1Q b7 h2 Ba7 Qg2 b8B h1Q Be5 Rg8+ Kh7 Nd2 g6 f1Q g7 Qgf2 Rg5 Ng2 Be3 Qh3 Beb2 Bb5 Nd5+ Ke8 e7 Kf7 Qc5 Ke6 e8Q+ Qe7 Qh5 Nf7 Qd4 Qef6 Qdc3 Re8 Ndb6 Bc5 Na8 Ba7 Rb1 Re7 Ba1 Ree8 Be4 Bb3 Bc2 Rd8 Rb2 Rd5 Rb1 Re5 Rb2 Rd8 g8B Rd4 Rb1 Rg4 Rb2 Q6f5+ Kg7 Rg3 Bh7 Qf6+ Kg8 Qd3 Be4 Rg4 Bf3 Qdf5 Rb1 Rg3 Ba3 Rg4 Bf8 Rg3 Bb2 a1B Rd1 Rg4 Bh6 Rg3 Ba3 Bb2 Baf8 Bc1 Bfg7 Nb1 Rd7 Nd2 Nd6 Ne1 Nc4 Rg1 Bf8 Ng2 Ba3 Ba2 Bb2 Bb3 Ba1 Q6g6+
BrKR1rqQ/N2Q4/qR3q1B/b3b1RN/1RB1b1n1/1Rq2rn1/2r5/4b2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 c4 g5 e4 f5 b4 a5 e5 f3 h3 Kg3 c5 f2 e6 a4 b6 a3 e7 d3 Kd6 f4 b7 f3 h4 d2 c6 a2 h5 Nh6 c7 Ra7 b5 Nf5+ Ke5 d5 e8B d4 b6 d3 h6 Nd7+ Ke6 Bb4 b8Q Rf8 b7 Qf6+ Kd5 Ne5 h7 Ba5 Qb3 d1R h8R d2 Ba6 Kg2 Rg8 f1Q Bc6 g3 Qa3 g4 Qb2 f2 Qb6 Qe1 Rg7 f1R Na3 Rf3 Rb1 a1B Bc4 Be6+ Kc5 Bd5 c8R Be4 Rh4 Bb2 Nh3 Kh1 Qa8 g2 b8R g3 Qc7 Ng4 Nb5 Rb7 Qd7 Be5 Rb3 Qe2 Na7 g1Q+ Qd4 g2 Rd8 Qd3 Rg5 Qc3 Rh6 Qf1 Qd7 Ng3 Rhg6 Re1 Nf4 d1Q Nh5 Re2 Bd5 Qa6 Rgb6 g1B+ Kc6 Rc2 Nf4 Qdd3 Re8 Rff2 Bd2 Rf7 Nh5 R2f5 Rh8 Bf2 Rg7 Be1 Bh6 Rf4 Rg5 Rff2 Kc5 Rc7+ Rc6 Rcd2 R8b4 Rc2 Qad8 R2f4 Qf6 Rf5 Rd8 Rf8 Qh8 Qff3 Nb5 Ra7 Rb6 Qff1 Ba8 Rb7 Na7 Qff3 Qb5 Qd7 Qc6 Qe6 Qc8 Qg8 Qd7 Bf6+ Kd6 Rf4 Qc7 Be5+ Kd7 Qf2 Kc8 R4f5 Rbg6 Qfb6 Qd7 Rf3 Rf6 Qd6 Re6 Qe7 Rd6 Qf6 Rdb6 Rb8#
2n3r1/brqqNNB1/2b4N/bRnr1N2/Q4Q1K/2q2bRN/B1b3pQ/5k2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 c5 g5 h5 a5 c6 g3+ Kf3 g4+ Kg2 a4 c7 a3 b6 a2 b5 d3 h6 Kd4 e5 d2 b7 Ke3 e6 d4 e7 d3 e8N Bb4 h7 Ba5 b6 Na6 b8N Bd7 c8Q Nc5 b7 Qc7 Na6 Ne7 b8Q Bc6+ Nf3 Ra7 Nd6 Rb7 Rh5 Rg8 Qf8 Nc8 Qa4 Qd7 Ba3 d1B h8N d2 Bc4 Bc2 Nhf7 d1R Nh6 Rd5 Nbd2 Qc7 Rah1 a1Q Ng1 Qc3 Ndf3 Qd7 Nd4 f3+ Kf1 f2 Kg2 f4 Ba2 Kd2 N4f5 Ke1 Nb4 Qc7 R1h3 f1Q+ Kh1 f3 Ndf7 f2 Bb2 Qb5 Kg2 Qbd3 Qd6 Qdd4 Qf4 Qd1 Rg5 Qdd3 Rhh5 Qb5 Nh3 f1B+ Kg1 g2 Kh2 Bfd3 Kg3 g1B Kh4 g3 Rg6 g2 Rg3 Be2 Rhg5 Re5 Nd5 Bf3 Nde7 Rd5 Rh5 Kf1 Rhg5 Qcd3 Bg7 Qc3 R5g4 Be4 Qg5 Qd6 Bb1 Be8 Ba2 Nd7 Qa7 Bc2 Rb4 Qdc7 Qf4 Qbc6 Rb5 Qe6 Rg4 Qed6 Q7d4 Qe6 Qfe5 Qec6 Qde4 Ba7 Qh2 Nc5 Rg3 Q6d6 Qed4 Bc6 Qf4 Qdd7
b6b/2rBN1bq/q2RR1Qq/1R5n/1b1bBnNQ/2k4p/R5nB/5KrR w - - 0 1 illegal: No possible last move, all moves rejected
5Qn1/RR2r3/nrQrR3/1bBb2N1/1q2rN1k/1q2rp2/Rb2R3/1K1q1B1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 e4 Kg5 c4 h5 Kc2 f5 g4 a5 b6 d5 b5 a4 b7 a3 b6 a2 c5 h3 e5 d3+ Kb2 h4 e6 h2 c6 d4 c7 d2 e7 f3 e8Q f2 Qc2 h3 Qc5 d3 Qec6 Rh7 Nc3 Bd7 c8R Ra3 Rc7 Re7 Nce2 Kh4 g5 d1Q g6 f4 g7 d2 Ng3 Na6 b8R Rae3 Rbb7 Qb8 N1e2 f3 Ra7 Be6 b7 Bd5 Nf4 R3e4 Rg1 h1R Rg2 h2 Rc8 Qe1 Re8 d1R Be3 Qb4+ Kc2 Rg1 Nh1 Rd3 Re1 a1R Re2 Rb1 Q5d6 Rdb3 Bc5 Rbe3 Qd8 Rb2+ Kc1 Qb3 Qdc8 Qd6 b8R Rd2 Rbb7 Rb2 Bd4 Qdb4 Bc5 Rd2 Qb8 Rdd4 Ra2 Rdd3 Rg6 Rg3 Re6 Rg6 Re5 Rd6 Re6 Rd2 Qd8 Rb2 Qa8 Nh6 g8N Bg7 Nf6 Ng8 Nh7 Be5 Bh3 f1B Ng5 Bb5 Bf1 Bh8 Ng3 h1Q Qb8 Qg1 Nh1 Rbe2 Qbc8 Bb2+ Kb1 Rd2 Q6c7 Rb6 Qc6 Bdc4 Qb8 Rd6 Qbc8 Bd5 Qd8 Red7 Qf6 Rc7 Qf8 Re7 Rd8 Bdc4 Rdd7 Rdd4 Rd8 Qf2 Nf7 Qfd2 Rd5 Rdd3 Rg5 Qe2 Rg2 Rd6 Ng5 Bd5 Rf2 Qed2 Re2 Qdd1#
3n1RB1/r1Q1R2N/2KN2nk/br4rb/2n2q1p/3QBNB1/2N2nq1/n1b1N3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 Kg7 e4 a5 c5 f3 c6 a4 b6 a3 c7 h3 g5 f4 g6 h4 b5 h2 b7 f2 b6 f3 e5 a2 e6 Ne7 Be2 f1N Na3 f2 Nh3 Rg8 Qd2 Qd6 Bf3 Ne3 Ng5 f1R Nc2 Ra7 Ne1 Kh6 g7 Ng6 e7 Bg4 c8Q Nc4 e8N Qf4 Qc7 Ba3 Nd6 Nc6 b8N Bh5 b7 Nd8 Na6 Bb4 b8B Ba5 Rb1 a1B Rb7 Bb2 Nb4 Ba3 Rg1 h1Q Nbc2 Qg2 Bd1 Rf2 Ngf3 Re2 Rh1 Re5 Rf1 Rg5 Qe3 Rf8 Bd2 Rff5 Qe4 Bc1 Be3 Nd2 Be2 Nb3 Rf2 Na1 Bf1 Qh1 Bh3 Re5 Be6 Qg2 Bg8 Re6 Nc8 Rb6 Nd6 Rb4 Bf7 Rb5 g8N+ Kh7 Nf6+ Kg7 Nh7 Kh6 Ke2 d3+ Kd1 d4 Bg8 d2 Ke2 d1N Kd3 Bg4 Kc4 d3 Kd4 d2 Kc4 Qfh2 Qd3 Bh5 Rf1 Nf2 Kd4 d1N Kc4 Ne5+ Kd4 Rb1 Kc5 Nb2 Kd5 Qf4 Kc5 Ndf7 Kd5 Ng6+ Kc6 Nc4 Qd7 Rbb5 Ne8 Qf5 Bg3 Bd8 Nd6 Ne4 Nfd4 Qg4 Rf5 Bc7 Ndf3 Qf4 Qd8 Bb6 Re7 Nf2 Qc7 Ba5 Rf6 Nh8 Rf8 Nf7 Bc5 Rb2 Bb6 Rbb5 Be3 Nd8+
Q4r2/nqR3nb/n2kN3/2qrNn1B/p4n1B/3N1b2/N1Rr2N1/1B2b1KQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 e4 h5 c4 d5 g4 f5 b4 a5 e5 f3 b6 f4 b7 h3 g5 h2 e6 a4 c5 h4 g6 d3 b5 d4 b6 h3 g7 d2 c6 d3 c7 Nf6 g8B Na6 b8Q Qd6 b7 Nd5 Nc3 Rh5 Qb3 d1R Qb1 Rd2+ Be2 Qc5+ Kf1 f2 Na2 Rf5 Bh7 Kd6 e7 Rh5 Bf3 Bf5 Ne2 Bh6 Qa7 Rf8 b8N Be4 Rg1 h1Q Nc6 h2 Ncb4 Bg7 Qb7 Bc3 Qa8 Re5 Bg6 Bf5 Bgh5 Bh7 Be4 Qf3 Ba3 h1B Rg7 Rg5 Bf5 Qe4 Bfg6 Bf3 Qe1 Re5 Rc1 Rg5 Rc2 Re5 Nc6 Qeb4 Qa1 Qb7 e8N+ Ke6 Bb2 Bd4 c8N Bg4 Na5 Rd1+ Kg2 f1N Rg8 d2 Nec1 Bf2 Nc6 Ng3 Rc4 f3+ Kh2 Re2 Rg7 Nf4 N8e7 Kd7 Nc7 Kd6 Bf6 Re5 Qb1 Rd5 Qe4 Be1 Ne5 f2 Bh4 Be2 Qh1 Bf3 Bg4 Ngh5 Ne6 Rf7 Bb1 Rf8 Rf7 Ng7 Rc2 Ng2 Ncd3 f1N+ Kh3 Ng3 Kh2 Nf4 Bh5 Qe3 Bf6 N3f5 N7g6 Qc5 Re7 Nd4 Nh4 Nb5 Rc7 Na7 Ng2 Rc1 Rc4 d1N Bh4 Rc2 Rc3 Ne3 Kg1 Rd2 Rc2 Nef5+
1Q5q/BRb1k2B/2r3bq/2R1n2p/1bB1b1N1/Rrn3Q1/4b1B1/qrN1K2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 a5 g4 f5 b4 h5 c5 a4 c6 d3 g5 a3 c7 d2+ Kf2 d4 e5 h3 b6 h2 b7 d3 b5 f3 b6 a2 e6 f4 e7 Rh6 g6 Nf6 g7 Nd5 g8B Bf5 c8B Nc3 Ne2 Bg6 Qb3 d1B Qb5+ Nc6 b8R d2 b7 Ra3 Bg2 Rb3 Qd3 Ne5 Bc4 Qd6 Re1 h1B Na3 Qd4+ Kf1 f2 Nc2 Qd6 Ne3 Qa6 Bgh3 Bhe4 Bg2 Qf6 Ba3 Qh8 Nc1 Bg4 Bc5 d1Q Bb6 Qd2 Ba7 Bd1 Ng4 Qe3 Rb1 a1B Ra8 Bb2 b8Q Ba3 Qd2 Bd6 Qd3 Bc7 Rb2 Qb6 Qg3 Qa6 Bb7+ Kd7 e8B+ Ke7 Bf3 Qc6 Bd7 Qb6 Bf5 Be2+ Kg2 f1R Bbd5 Bf7 Bh7 Bfg6 Rd1 Re1 Rd4 Rd1 Kf2 Qc6 Bh1 f3 Rdd2 Qcf6 Rdc2 Qfg7 Na2 Rb1 Nc1 Qf6 Ke1 f2+ Kd2 f1Q Bg2 Ra3 Rb7 Rab3 Bh1 Q1f4+ Ke1 Qa6 Bc6 Qa1 B6d5 B4d3 Bdf3 Bge4 Bfg2 Rc6 Bg1 Qg5 Ra3 Qh6 Ba7 Bg6 Rd2 Bc2 Rd5 Bce4 Rdb5 Kd7 Rba5 Bb4 Rc5 Ke7
bn1q4/r1bk2K1/RnrbR1qn/NR1r1pRR/4BB1Q/Q1Nn4/B7/6n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 f5 g4 a4 b4 h3 e4 d3 c4 d2 c5 f3 g5 f2 b6 h4 b7 d4 c6 d3 g6 h2 c7 a3 b5 a2 g7 h3 b6 Rh5 Qb3 d1R Nf3 d2 Bc4 f1Q Qa3 Rh6 Nd4 Qe1 Nb3 Kd7 Nc3 Ra7 Na5 Rc6 Bd3 Nh6 g8B Bc5 Rg1 h1N Rg5 h2 Bd5 Na6 b8R Ng3 b7 h1N Ra8 Bb6 b8R Bb7 Rb1 a1B Ba2 Qe2 Rb5 Nf2 Rc8 Nb8 Rh5 Qg5 Rg8 Qd8 Rgg5 Qe3 Bdb1 Ne2 Bc2 Ng1 c8Q+ Ke8 Qc7 Bc5 Qh7 Bd6+ Ke6 Nd3 e5 Bb2 Ne2 Bd4 Nc3 Bb6 Bcb1 Bbc7 Bc2 Qc8+ Kf6 Qd8+ Kg7 Kd7 e6+ Kc8 e7 Kd7 e8R Qe1 Rg8 Qee8 Rb1 Rf1 Rf8 d1N Rb5 Ne3 Rf6 Rd1 Re6 Nd5 Bf4 Nb6 Qh8 Nc1 Be4 Rd5 Qf8 Nd3 Qf6 Bb4 Qd4 Bc5 Qf2 B5d6 Qh4 Ra6 Ra7 Ba8 Rb7 Na4 R7b6 Ra7 Ra6 Nb6 Bg2 Nf7 Bh1 Nh6 Be4 Qg6+
kBB2n1R/4rn1R/n1bn1rQR/N2pn2K/5b2/4B3/1qQ2Rqb/4qN1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kh5 Kb7 b4 a5 g4 f5 e4 d3 c4 h3 e5 f3 b6 a4 g5 f4 c5 d2 b5 h2 g6 a3 e6 a2 e7 f2 e8Q f3 g7 Qf6 Qe4 Ne7 g8R Na6 Rg7 Qb2 Qf4 Bd7 Nc3 Ng6 Qf6 Re8 c6+ Ka8 c7 Bc6 Nce2 Bd6 Qh4 Nf8 Qda4 d1Q Qhf4 Qe1 Bh3 f1Q Bf5 f2 Bg6 Qg2 Qg3 f1N Be3 Bf4 Qc2 Nd2 Nd4 Re7 Bf5 Nf3 Nge2 Ne5 Nb3 Nf7 Na5 h6 Rf1 h1N Qg6 Nf2 Bc8 Nd3 Rh7 Nde5 Rf2 Rg8 Rb1 a1B Ng3 Rg7 Nf1 Bh2 Qg3 Rg6 Rc1 Rf6 Qgg6 Nc4 Rd1 Ncd6 Rb1 Qbb4 Rc1 Bae5 Ra1 Qd4 Rc1 Bef4 b7+ Ka7 b8B+ Ka8 b6 Qb2 Be6 Re8 c8R Re7 Kh4 h5 Rc7 Qa3 Rh6 Qb2 Bc8 Qg5+ Kh3 h4 Rb7 Qg1 Ra1 Qh1 Kg4 h3 Kh5 Qg2 Rb1 Bhg3 Ra1 h2 Rc1 h1N Rc7 Nd8 Rd1 Bh2 Rd7 Ree6 Rdh7 N8f7 Nd2 Re5+ Bf5 Nh8 Rf3 Ne6 Bc7 Qee2 Rg1 Qe1 Nf1 Nf2 Rh1 Nd3 Rf2 Re4 Bg4 Qd4 Bf5 Nhf7 b7+ Ka7 b8R Qb6 Bd2 Qb2 Rbh8 Nf8 Bc8 Ka8 Be3 Re7 Bb8 Nde5
B2R4/2bq1N1q/rbnnQ3/1p2b3/N2Brk1b/2Q3Rq/K1n1b2Q/N3N1N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 e4 Kd6 h4 Ke5 a5 f5 d6 c5 d3 g5 Kd2 b5 Kc2 b3+ Kb2 f3 h5 f2 h6 c4 d7 f4 h7 g3 a6 f3 a7 g4 Be3 g2 Qc1 g3 Ra3 Nh6 Nd2 Bd6 Bd4+ Kf4 e5 Nf7 e6 Re8 h8Q Nc6 e7 Be5 Qh2 Nd6 Qc3 Qc7 d8N Qd7 Kb1 b2 Ka2 b1N Rb3 Na3 Nb7 Nc2 Na5 Bb7 Be2 f1Q Bd1 f2 Ndf3 Qe2 Ne1 Qe4 Bf3 f1Q Ra3 Qef5 Nb3 Qh7 Be4 Qf3 Na1 Qfh5 Bd5 Qhh3 Bf3 Rg8 e8Q Rg4 Bd5 Bc8 Qe6 Rh4 Ngf3 g1B Be4 Bf2 Ng1 Kg5 Bf3 g2 Bd5 Re4 Rb3 Rb8 a8N Bh4 Nb6 Ra8+ Na4 Ra6 Ra3 Ne7 Ba8 Nc6 Ba7 Bb7 d4 Bc8 d5 Bb7 Ne2 g1B Bd4 Bgf2 Ng1 Be3 Qe2 Kf4 Rh2 Bef2 Rg2 Be3 Rg3 Bc8 Qh2 Bf2 Ba7 Bb6 Rb3 Bc7 Bd4 Bb6 Qb2 Bc7 Rbd3 c3 Qc1+ Ne3 Qcb2 c2 Qc3 c1B Rd2 Nc2 Rd1 Ne8 d6 Ba3 Rd2 Bc5 Rdd3 B5b6 Rd1 Qde7 d7 Nd6 d8N Qd7 Nf7 Qe8 Qg6 Bg4 Qe6 Be2 Bf2 Nf5 Rd8 Qd7 Bd4 Nd6
2bkB1QB/3bq2r/bq1n1bBp/N1R1Q3/2K1br2/r1n2Q1B/8/NB3R1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 Kd3 d5 c4 f5 e4 f3 b4 a4 g4 f2 b6 f4 b5 h3 b7 f3 b6 h6 g5 a3 c5 h2 g6 a2 g7 Ne7 g8B Bg7 c6 Rh7 e5 Na6 b8Q Bf6 b7 Nc7 e6 Nb5 Bh3 f1R c7 f2 Nd2 Ra3+ Nb3 Qd6 Bb2 Qb6 Rc1 a1Q Ne2 Qb1+ Kd2 d3 Rc5 d4 Na5 Nd5 e7 Ndc3 Nc1 Qa2 Qh5+ Qf7 Qf3 Qfe6 Rg1 h1N Bf7+ Kd7 e8B+ Ke7 Rg6 Bd7 c8B Kd8 Qbg3 Qed6 b8Q Qe7 Bb7+ Bc8 Qbe5 Bd7 Ncb3 Bc8 Qd1 Bd7 Kc1 d2+ Kc2 Bc8 Qdg4 d1B+ Kd3 Bc2+ Kc4 d3 Q4f3 d2 Na1 d1B Be4 Ba4 Bb1 Bdc2 Rg4 Be4 Rg5 Re1 Bg6 f1B+ Kb4 Bc4 Rf5 Rf1 Qgg2 B4e6 Rf4 Bed7 Kc4 Bac2 Qgg4 Beb7 Qge6 Ba6 Qg8 Rf2 Rg4 Be4 Rg1 Rg7 Rf1 Rh7 Qfg3 Rf5 Qf3 Rf4 Rg1 Nd5 Qeh5 Bh4 Bh8 Bf6 Qe5 Ndc3 Rf1 Nd6+
3n1q1B/2q1R3/1qBR2np/5rN1/2B1K1nk/N2b1Q2/bRQr2n1/3nbRR1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 g4 Kg5 e4 d5 c4 f5 b4 a5 b6 a4 c5 a3 c6 h3 b7 a2 c7 h6 b5 h2 b6 Bb4 e5 Be1 e6 Ne7 Ba3 f3 Qc2 f2 Qb3 f4 Bh3 f1N Qb2 f3 Qb3 f2 Bc1+ Kh4 g5 Nbc6 b8Q Ng6 b7 Rf8 e7 Ne3 e8B Be6 c8R Ng2 Rc7 Rf5 Re7 Qc7 Qc8 Nd8 b8R f1N Rb6 Nfe3 Rd6 Ng4 Na3 Ra7 Rb1 a1Q Be3 Qb2 Bc6 Ra8 Qc2 Qbb6 Qb7 Ra6 Rb2 Bg8 Nb1 Ra2 Bf4 Be6 Be5 Bg8 Bh8 Bf7 Ne2 Bg8 Rg1 h1Q Rf1 Qg1 Ng3 Qf2 Na3 Qf4 Ne4 Be6 Ke2 d3+ Kd1 d2 Ke2 d1B+ Kd3 d4 Qa8 Nf8 g6 Bd5 g7 Ng6 g8R Qf2 Qa6 Bb3 Ng5 Be2+ Ke4 d3 Qb5 d2 Qbd3 d1N Qf3 Qfc5 Rb1 Rb2 Rgg7 Ba2 Rg8 Rb3 Rb2 Rd3 Rgg7 N4e5 Bg4 Rd2 Bh5 Ng4 Rg8 N6e5 Bf7 Ng6 Bc4 Qcb4 Rd4 Qbd6 Rd3 Qf6 Rd6 Qf8 Qb1 N6e5 B4b5 N4e3 Nh7 Nf4 Rgg1 N5g4 Bc4 Ng6 Ng5 Ng2 Qc2 Bd3+
1KQb2kN/R1pqr1Nn/4b3/1Qb2r2/2BQ2R1/3r1bn1/3N2b1/2Bn1QQq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 Kf7 e4 c3 g4 f3 d4 f2 b4 c2 d5 h3 b6 h2 b5 h4 d6 a4 b7 a3 g5 a2 b6 f4 d7 h3 Nd2 f3 Ba6 f1N Kd5 f2 e5 Rh5 Ne2 Nc6 b8Q Nd4 b7 Nb5 Kc6 Bc5 Rg1 Nf6 g6+ Kg8 e6 Rf5 e7 Nh7 e8N Ng3 g7 f1B Nf4 Nc3 Ng6 h1B+ Qf3 h2 Nh8 Qe7 d8Q Be6 Bc4 Bfg2 Qbc8 Nd1 b8Q Qd7+ Kb7 Ra3 Qh4 Rd3 Qd4 Rd5 Qf1 Rf5+ Qd5 Bf3 Qa7 Bhg2 Kb8 h1Q Qdb7 Be7 Qd4 Bh4 Qb5 Bd8 Rb1 a1R Rb4 Rf7 Ra4 Re7 Ra7 Ra5 Qa4 Rf5 Qb5 Bh3 Rg2 Ne2 Rg3 Bhg2 Rg4 Ng3 Rf4 Ne4 Rb7 Bh3 Ba3 c1B Ra7 Bb2 Rh4 Bc3 Bc1 Bb4 Rg4 Bc5 Rg2 Nhg5 Rg3 Kh7 g8Q+ Kh6 Qe1 Nh7 Qg4 Bf1 Qg1 B1g2 Qef1 Nec3 Qe4 Ne2 Rg4 Ng3 Qe5 Ng5 Qee3 Kh7 Qd4 Kg8 Ng7 Nh7
3krb2/p2q2nQ/8/n1Nrbq2/QK3Q1n/q1QB1n2/2b2N2/1BB1QnRR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 e4 g5 b4 f5 c4 g3 h4 d3 Kc3 d4+ Kb3 g4 c5 d2 h5 f3 b6 f4 e5 f2 e6 d3 b7 f3 h6 g2 h7 g3 c6 Nh6 c7 Qd6 b5 Nc6 b8Q Na5+ Ka4 Nf5 e7 Ng7 b6 Qa3+ Kb5 Kd7 Nh3 g1N b7 g2 Be2 f1Q Qe1 d1N Qc3 d2 Nf2 Ne3 Bd3 d1Q Nd2 Nef5 Nb3 Nh4 Nc5+ Ke8 Rb1 Rg8 h8Q Qda4+ Ka6 Qd7 Qh6 Rh8 Qf4 Rh5 Qa4 Rd5 Qe1 Kf7 e8Q+ Kf6 Q8e4 Kf7 Qh7 Kf6 Qc3+ Ke7 Ng4 f2 Ra1 Qf5 Kb5 Ngf3 Qe1+ Be6 c8B g1B Qbe5 Kd8 b8Q Qh3 Q5c3 f1N Qbf4 Bd4 Nf2 Be5 Bb1 Bf7 Ba6 Bg6 Rg1 Qe6 Rh1 Bc2 Rg1 Qhf5 Rh1 Qa2 Kb4 Qd7 Bb5 Ke7 Be2 Re8 Bd3 Kd8 Ba3 Nb7 Qe2 Bb3 Bbc2 N1h2 Rag1 Nf1 Qee1 Na5 Bb1 Bc2 Bc1 Qa3+
1Q1Bb1r1/p5Q1/R2B2rR/1qnk4/1B2q1Nn/1N2b1N1/1nnrb1nK/2B2B2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 e4 f5 h4 g5 c4 f3+ Kh2 f4 b4 d3 h5 f2 h6 f3 h7 d2 b6 g3+ Kh3 g2 b5 g4+ Kh2 g3+ Kh3 Nf6 b7 Ng4 b6 Qe7 Qa4 d1B Bh6 Rg8 h8B Ne3 Ra2 Be2 Bc3 Na6 Bb4+ Nc5 Nd2 Nc2 b8B+ Ke6 e5 d5 b7 d4 Qa5 d3 Qc7 Bd7 Nb3 Be8 Bc1 d2 Ra3 d1N Ra6+ Qd6 Qg7 Qc6 Bd6 Nb2 b8B Qe4 Bbc7 Rd8 Rh2 Be7 Bb6 Bg5 B6a5 Rd7 Bd8 Be3 Rh1 Nca4 c5 Kd5 c6 Nc5 c7 Bd1 Ne2 g1R c8Q g2 e6 Bf7 Bf4 Kc4 Qb8 Bg6 Ng3+ Rd3 Be2 f1Q e7 Kd5 e8N Rd2 Nd6 Be8 Bb5 Qe2 Ndf5 Q2c4 Bd7 Qb5 Bd6 Be2 Rh2 f2 Bc8 f1N Nh6 Bd4 Nh1 Nfe3 Bd7 Re1 Kg3 g1N Bh3 Nf3 Bg2 Rf1 Bh3 Rf2 Bf1 Ng2 Ng4 Be3 Rh6 Nfh4 Kh2 Rf6 Ng3 Rg6
2Q1n1qN/4QqB1/R1BQ2N1/5R2/K4R1r/nRr1rR1p/b1bbq2k/1n5r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb3 a5 g5 d3 g6 d2 g7 a4+ Ka3 d4 c5 d3 c6 f3 b6 Kf4 c7 Kg3 b7 h3 e5 f4 e6 h2 e7 h4 e8R h3 Be2 f2 Bg4 f1Q Qc2 d1N Bd7 f3 Qc5 f2 b5 d2 b6 Nf6 Nc3 Nc6 b8R Ne5 b7 Rh4 Bc6 Be6 c8Q Ba2 Nd5 Nc3 Nf3 d1B Bh6 Bc2 Ne7 Qe2 Rhf1 h1R Ng5 Kh2 g8R Nc4+ Kb4 a3 Bg7 Ra6 Ng6 Nb1 Re3 Ne8 Qe7 Qd5 Rh8 Qg8 Rf3 Ra5 Nf7 Re5 Rh6 Re3 Rh5 Rc3 Nfh8 Re3 Bd4 Bh6 Bg7 Rc3 Rhf5 Bd2 Rg1 f1Q Rg4 Qff2 Rgf4 Qa7 Ra8 Re1 b8Q Qd7 Ra6 Qde6 Rf1 Qef7 Qbd6 Bab3 Bb7 a2 Qcc7 Qg2 Bf6 Ree3 Qc8 Qe2 Be4 Rcd3+ Kb5 Nc3+ Kb4 Na3 R1f3 Bd5 Rb1 a1R Bg7 Ba2 Rb3 Rh1 Bc6 Ncb1+ Ka4 Rc3
1K1N2Bq/r2B2q1/rr1r1kn1/3B2n1/1b3p2/3bRRqB/3b1B1n/N1Q1NQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 f5 Kc4 a5 Kc5 d5 e4 h5 g4 f3 c4 d3 b4 h3 e5 h4 b6 d4 e6 f4 b5 d2 g5 f2 g6 h2 g7 a4 b7 d3 b6 a3 Qf3 d1Q Bg2 f1N Nd2 a2 Qf2 h3 Bd5 Qg4 Nb3 d2 Nf3 d1R Ne1 Rh7 Be3 Na6+ Kc6 Nc7 b8Q Ba6 c5 Qg3 b7 Bd3 Qc8 Kf6 b8N Ra6+ Kb7 Ne7 g8B Ng6 c6 Qd7 e7 Ne6+ c7 Ng5 e8B Bb4 Nc6 Qg7 Nd8 Rc6 Rg1 h1R Kb8 h2 Bd7 Rd2 Rc1 a1B Rc3 Bb2 Rg2 Bc1 Na1 Ra2 Qf3 Bd2 Re2 Raa6 Bf2 Rg1 Ra3 h1Q Re3 Nh2 Qd1 Rd6 Qc1 Rac6 Qa6 Rf1 c8B Rh6 Nec2 Re1 Rf3 Re7 Ne1 Rf7 Bh3 Ra7 Re3 Qe4 Bcd7 Qe8 Qa4 Qef8 Qad1 Qh8 Qe2 Qfg7 Qf1 Rh5 Bge6 Bc2 Reb3 Ne4 Bc4 Rha5 Rf3 Ng5 Bcd5 R5a6 Rae3 Bd3 Bg8 Rcb6+
1n3qQr/rq2r1BB/2bb1N2/pNN1q2Q/2Q1b3/3n2kn/2KR1q2/1NRN4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Na6 g4 Ke7 c4 Kf6 b4 Ke5 e4 d5 c5 f5 b6 h5 b7 h3 b8Q+ Qc7 c6 h2 g5 d3 g6 f3 g7 Kf4 b5 d4 e5 h4 e6 f2 e7 h3 e8N Nf6 g8N Kg3 b6 f4 b7 f3 Qc2 Bd7 Ng7 Ng4 Qd1 Ne5 Ne8 Qd6 Be2 f1Q c7 f2 c8Q Qf6 Nh6 Bd6 Bb2 Qe7 Kc1 d2+ Kc2 Bb5 Ra3+ d3+ Kb3 Qg2 Qcc7 f1Q Ng4 Qgf3 Bd4 Q1f2 Ra2 Bd7 Bf1 Qf4 Qe2 d1R Ne3 d2 Qcc4 Re1 Nf3 d1Q+ Kc3 Qb3+ Kd2 Bc6 Rb2 Nf7 Bg7 Ne5 Nd4 Qfg5 Bg2 Nd3 Nf6 Qe8 Rf1 h1B Be4 h2 Bh7 Qe7 Qbg8 Qf8 b8N Qb7 Nbd7 Nb8 Kc3 a5 Rd2 Ra7 Qh5 Re2 Rc1 Qgf4 Ned5 Re7 Nc5 Qe5 Ne3 Bhe4 Nd1 h1N Re2 Qg1 Kc2 Nhf2 Rd2 Nh3 Nb5 Qf2
1rN5/1p2Q2q/3q2rn/r1qRN3/k3b3/NrB1QBKn/5RR1/b1Nbn1N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 e4 c5 d4 h5 g4 f5 a4 f3 d6 Kc6 d7 c4 g5 c3 a5 h3 e5 c2 e6 h4 g6 h2 g7 f4 e7 h3 e8N b3 a6 b2 a7 Na6 Qe1 Nc5 Qd1 Nh6 g8R Bg7 Bd2 c1Q Nc3 b1Q Nce2 Kb5 d5 Qh7 Ra2 Ba1 d6 Qf6 d8Q Bg4 d7 Qd6 Rc2 Ka4 Qe1 Bh5 Bg2 Nd3+ Kf1 f2 Nc7 Qca3 Nc1 Qac5 Qe3 Bd1 Bf3 Ne1 Qde7 Rb8 Rd8 Rg8 a8N Rg6 Nb5 Qcd4 Nge2 Q4c5 Rg1 h1B Na3 h2 Ra2 Ng2 Bc3 Ne1 Be4 Bf3 Rg2 h1N Bd5 Be4 Ng1 Bdc2 Ke2 f1R Rb2 Nf2 Ra2 Bf5 Bf3 Nh3 Rb2 Bce4 Rd2 Be6 Rd5 Bg4 Rf8 Bh5 d8N Bg4 Nf7 Bh5 Bg4 Rf3 Ne5 Rg3 Kf1 f3 Rf5 f2 Bf3 Nc2 Ke2 f1R Rf7 Rd1 Rf5 Ne1 Kf1 Nf4 Kf2 R3g5 Rf6 Rd3 Rf8 Bg4 Kg3 Nh3 Rf7 Rd4 Rf5 Rb4 Nb6+ Ka5 Nc8 Ka4 Rf2 Rh5 Rg5 Rb3 Bh1 Be2 Bf3 Bd1 Rd3 Rg7 Kh2 Qcd5 Rgg2 Rg3 Nc6 Qc4 Rdd2 Ra5 Rd5 Rg6+ Ne5 Rf6 Kg3 Qcc5 Qd8 Re6 Qe7 Rg6+
1R1Nn3/1q3Rr1/1K3nRB/1RQbr2k/r7/bp2qrrN/2R2B2/2Q1rB1r w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 d4 f5 e4 Kf7 g4 Kg6 a4 h5 e5 c5 g5 f3 Ke3 h3 a5 f2 d6 b3 a6 h2 d5 b2 d7 c4 Kd4 h4 e6 c3 a7 h3 e7 b4 Kc5 c2 d6 b3 e8R f4 Kb5 f3 Ra5 Qe7 d8Q Kh5 g6 Qb7+ Qb6 Nd7 g7 Ndf6 d7 Rh7 d8B Be6 Nd2 b1R Nc4 Ba3 Bh6 c1Q Re7 Bd5 Ne5 Qe3 Qc1 Ne8 Nf7 Ngf6 g8R Rg7 Bc7 Rb2 Nd8 Re2 Rf7 Re1 Bg3 Re2 Bg2 f1R Bf2 Rfe1 Bf1 Rg3 Ka4 Rg7 Rb5 Rg3 Ka5 Rg7 Bh4 f2 Qbc5 Rg3 Bg2 f1R Rg6 Rff3 Bf1 Rc8 a8R Rc7 Rb8 Rd7 Rf8 Rg7 Rf7 Ra2 Ne2 Ra1 Rg1 h1R Rg2 h2 Ng1 Re2 Nh3 Rg1 Rf2 h1R Rh2 Re1 Rc2 Rg5 Bf2 Re5 Qb2 Rgg3 Qbc3 Rad1 Qa1 Rd4 Qc1 Qe7 Ka6 Ra4+ Kb6 Qb7+
B1qb3K/1Rr3Q1/N3n1bq/Rr1R3R/Q1N1RBk1/5qq1/2N1q1p1/1r2q1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 e4 f5 b4 d5 c4 g3 b6 a4 h3 a3 b7 a2 c5 g2 c6 d3 b5 d4 b6 d2 c7 d3 Qe1 d1R h4+ Kg4 h5 g5 h6 f3 h7 d2 Rh6 f4 Bc4 f2 Rc6 f1Q Rh6 f3 Rh3 f2 Rh2 Na6 b8R Ne7 Kf6 Bf5 c8R Qe2 b7 f1Q e5 Bg6+ Nf3 g1Q e6 Nc6+ e7 Ne5 Rh5 Nc5 Na3 Qh3 Bd5 Qgg3 Nc2 Ne6 Rc5 Qc8 e8R Ra5 Qh1 Rg8 h8Q Rb5 Qg7 Rf1 Qh2 d1Q Bf4 Bd6 Qh1 Bc7 Nd2 Nf3 Nc4 Ng1 Qe4 Bd8+ Re7 Rh8 Bc6 Qhh4 Rd5 Rh7 Qd4 Qef3 Qa7 Qde2 Qa4 Bf5 Kf7 Rfb1 Kg8 Bg6 Re8 Nc5 Re4 Ne6 Qh6 Re7 Qg7 Rc7 Kh8 Qhh2 Ra8 Qhh4 b8N Qhh1 Na6 Qhh4 Rh7 Qh6 Rb8 Rd1 Rc1 a1Q Ba8 Qe5 Ra1 Rdb1 Rb7 Qec3 Qb3 Qce1 Qa4 Qhh1 Qg8 Qgf2 Ne5+ Kf5 Qa2 g4 Qg7 g3 Nc4+ Kg4 Qb3 g2 Ra5 Q3g3 Qa4 Qff3 Rh6 Qhh4 Rh7 Qg5 Rh5 Qh6+
1NRNqkB1/2QBqB2/4n3/4b1Bn/2BnK3/1n3pr1/3N1Qrn/3b1Rqn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 d5 e4 f5 c4 h5 b4 a4 g4 a3 b6 h3 c5 a2 e5 h4 b5 d3 c6 d4 b7 h2 c7 d2 b6 h3 e6 d3 g5 Nf6 g6 Qe7 g7 Ra3 g8B Na6 b8N Nh5 b7 Nc5 Bh7 Rg8 Qb3 d1N Na6 d2 b8Q Ne3 Bg2 d1Q+ Ne2 Qg1 Nd2 Nc2 Qc3 Bg7 Qa8 Be5 Bf1 Rg2 Nd4 Kf8 Bg8 Qe8 Rb1 a1N Qa7 Nab3 Nb8 Bd7 c8B Ba4 Bd3 Qe1 Rg1 h1Q Rf1 h2 Bc4 Qg1 Ndc6 h1N Bd7 Qh4 Nd8 Qhe7 Bc8 Ra2 Bd7 Rg3+ Ke2 Rb2 Qf3 Ra2 Qc7 Rb2 Qf2 f3+ Kd1 Ra2 Rb2 Ncd4 Rc2 f4 Rc3 Na5+ Ke1 Bd1 Rc2 Nab3 Rc3 Qh4 e7+ Kg7 Rc2 Nce6 Rc3 Qf7 e8B Kf8 Rc2 Qfe7 Bef7 Qe8 Ne4 Qhe7 Be3 Nbc5 Kd2 Ncb3+ Kd3 Rb2 Nd2 Ra2 Qg2 f2 Ke4 f3 Bg5 Rb2 Re1 f1N Qf2 Nh2 Rf1 Rb1 Ra2 Rb2 Ra8 Nb5 Na6 Rc2 Rc8 N5d4 Nb8 Bf4 Qe2 Nhg7 Nb1 Nh5 Qe1 Rcg2 Nd2 Bd6 Qf2 Be5
r1n2n1N/7k/rRb3N1/1Nbn4/rNnp2qN/1rQR4/Q3QBr1/3B2bK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 f5 c4 Kf7 g4 Kg7 Kg2 a5 e4 h5 g5 d3 c5 a4 b6 f3+ Kh2 h3 e5 f4 g6 a3 b7 d2 c6 a2 b5 h4 b6 f2 e6 f3 c7 Nd7 b8Q Ne7 b7 Rg8 Be2 f1R Bd3 f2 Qe2 d1N Be3 Nb2 Bc2 Nc4 Na3 Rb1 Qa7 Rb3 b8N Bb7 c8Q Bc6 Rb1 a1B Nb5 Bd4 Nf3 f1N+ Kg1 Qe8 Bf2 Nfe3 Na6 Qf7 Rb2 Qf4 Bd1 Qg4+ Kh2 Kh6 g7 Kh7 Nb4 Bc5 Qcc7 Nc8 e7 d4 e8N Nd5 Qg3 Bfd6 Qa2 Nf8 Rf1 Ra6 Kh1 h2 Rb1 Bf4 Ned6 Be3 Nf7 Rh8 g8N Ra4 Be1 Bg1 Ne7 Rg8 Bf2 Rg6 Kg2 h1R Nh8 Rf6 Neg6 Rd6 Re1 h3+ Kf1 Rh2 Nfh4 Rg2 Qc3 h2 Rb2 h1R Rd2 Ndb6 Rd3 Bf3 Qeb2 Bd5 Re6 Bc6 Qe2 Nd5 Rf6 Bb7 Re6 Rda6 Rb6 Bc6 Qe5 Ra8 Bf3 R4a6 Qab2 Rgh2 Qbd2 Rba3 Qa2 R3a4 Be3 Rb2 Qe4 Rb3 Bf2 Qf4 Kg2 Rh3 Bd1 Rg3+ Kh1 Qg4 Qee2 Rg2
1r2bn2/QpN1n1Kn/RR1N1b2/5R2/1Rb3Q1/1B1k4/3nnrrq/Q1r1B2R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 c5 a4 c4 d4 h3 a5 h4 d6 b3 a6 f3 a7 h2 d5 c3 d7 f2 d6 h3 Nf3 b2 Nd4 c2 Nb5 Be7 N1c3 b1N Bd2 c1R Be1 Qc7 d8R Nd7 Rf8 Rb8 a8Q Nd2+ Kd4 Rh7 e4 Rg7 Bc4 f1B Bb3 Bc4 e5+ Kg5 e6 Kf4 g5 f5 g6 Ngf6 Ra2 Nh7 Ne4 Bg5 Rf7 Ndf8 e7 Bd7 Qa7 Be8 d7 Bh4 d8R Rg8 Rd5 Bf6+ Re5 Rg7 Ra6 Rg8 Rg1 h1N g7 h2 Ned6 Ng3 Rb6 h1N Rf1+ Nf2 Rh1 Nfe4 Ra6 Nc3 Rb6 Bd7 e8R Nd5 Re6 Ne7 Ra6 Be8 Rb6 Qc6 Nc7 Qg2 Rb4 Qh2 Rb6 Rc3 Qda1 Rc1 Rb4 Kf3 Rb6 f4 Rb4 Bh4 Ref5 Ne2+ Ke5 Bg5 Rb6 Ke3 Rb4+ Kd3 R7f6 Qh3 Rg6 f3 Ref6 f2 Re6 Rh8 g8Q f1R Rgf6 Bh4 Qg4 Rf2 Rg6 Rg8 Rh6 Ng5 Kf6 Qh2 Rg6 Rh8 Kg7 Ngh7 Ndb5 Rg2 Ra6 Rf2 Rgb6 Rg8+ Kh6 Rg7 Nd6 Rg5 Qh5 Rg1 Qg4 Rgg2 Kg7 Bf6+
1B1BRq1B/1kr3n1/nqN2RKb/6bq/2r1B1qb/b3B3/1N2Q1p1/1b1Q3Q w - - 0 1 illegal: No possible last move
r3nN2/q2qQ1r1/bR5b/1Q1BB2n/4q3/RbQNkbQ1/qQ1p3q/2K3R1 w - - 0 1 illegal: No possible last move
b1b1r3/2b1R1rk/rnQ4N/QrB3q1/Q4Q2/6BN/2qp2B1/nr2KRQb w - - 0 1 illegal: No possible last move
Q5B1/3b1Bb1/1Bb3KR/N1n1N1Q1/r1bBq3/RB1q2bp/Qn1r2r1/3rk3 w - - 0 1 illegal: No possible last move, all moves rejected
R2QqQbB/7q/4qRB1/2N1rqbQ/2Q4Q/1pb2r2/1nRb2q1/Nk1n3K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 a4 Ke5 h4 Ke4 d4 g5 d6 c5 h5 f5 h6 b5 e3 f3+ Kh2 c4 d5 f4 h7 f2 a5 c3 d7 f3 d6 c2 a6 b3 a7 b2 Bd2 c1B Bc4 f1Q Ra2 b4 Bb3 Kd3 e4 f2 e5 Qe1 e6 f1Q e7 Bg7 e8Q Na6 Bd5 b3 Qe6 Qf5 Kg2 g3 Rh5 g4 Rh3 Nf6 Bf4+ Bd2 Qe8 Nc5 Rh4 Nfe4 Nf3 Nf2 Be5 Na4 Qg8 Qe8 d8Q Be6 Nc3 b1Q d7 Nb2 Ne4 Rc8 a8R Rc5 Qf7 Rf8 h8Q Rb5 Qe2+ Kc2 Qhh5 Nd1 Nc5 Qh7 Qfe7 Bg8 Bf7 Bh6 Qb8 Bg5 d8Q Kc1 Qbc8 Qbf5 Nd4 Kb1 Bh8 Bc3 Qc4 Qee6 Kg1 g2 Bg6 Rf7 Kh2 g1B+ Kh1 g3 Nc2 B1e3 Na1 Bed2 Rf4 Rf8 Rf3 Rf6 Qch4 Rf7 Qf8 Ra5 Nd3 Re5 Qcc4 Rf6 Nc5 g2+ Kh2 Na4 Rc2 Nab2 Rf4 Rf7 Kg3 g1Q+ Kf3 Qd4 Kg2 Qde4+ Kg1 Rd7 Rf1 Rd3 Rf4 Rf3 Kh1 Qg4 Rf7 Qe4f5 Rf6 Qg2+
K2b3q/r1q1BqR1/b4R2/Qb2r1B1/n1R2q2/1p1B4/kn1Q2q1/Nb2BB1N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 h5 a4 b5 a5 c5 g5 f5+ Ke5 f3 a6 f2 a7 f4 g6 b3 g7 f3 d6 b4 d5 b2 d7 h3 d6 h2 Ke4 h4 Bg5 h3 Qa4 Nh6 g8B+ Nf7 Ra3 Rh7 Qd1 Qc7 d8B Ba6 d7 Be7 Ra4 Bf6 Qc1+ Kb3 Kd5 c4 e4 c3 e5 c2 e6 Ne5 e7 Nc4 Qd2 c1Q Na3 b1B e8R Nb2 Be7 Ka2 d8B b3 Rf8 Nd7 Ne2 Nc5 Rc4 Na4 Rg1 h1Q Ng3 h2 Nc2 Qg2 Na1 h1Q Bh4 Rb8 a8Q Rb7 Bf7 Qhh3 Bg6 Rh5+ Bg5 Qf4 Kc6 Qhh2 Bh4 Re5 Nh1 Qc3 Bg5 Qh8 Ba5 Qc1 Bgd3 Qc2 Bc5 Bd8 Bce7 Qc3 Rf6 Qc2 Bfe2 f1Q Qa7 Qc3 Qc5 f2+ Qd5 Qd1 Bf1 Qdh5 Bab4 Qgh2 Qa5 Qf7 Qe2 Qcc1 Be1 Qhg3 Qed2 Qgh2 Bh3 f1B Bg2 Be2 Bf1 Qg2+ Be4 Qgg3 Rc5 Bf3 Bh6 Bfe2 Rc3 Qh3 Rg7 Rb8 Bg5 Bec4 Bed3 Qg2+ Kd7 Bcb5+ Rcc6 Rb7+ Kc8 Rc7+ Kb8 Rb7+ Ka8 Qc5 Rc7 Qd6 Rc1 Qc7 Rc4 Ra7#
B2brR2/Q1qBNb2/bR3B2/N1r3rQ/1K1np3/3bqnB1/r7/2kN1B1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kc2 Ke4 g4 h4 g5 e2 g6 e1Q f5 d3+ Kb2 a3+ Kb3 h3 g7 d4 c7 d2 f6 Ke3 f7 e4 Be2 d3 Kc3 a2 Qa4 Nh6 g8B Ng4 Qa5 Nc6 b8B Ba6 c8B Nge5 b7 Nf3 Bd7 Ncd4 Bf1 Rh5 Bg3 Rg5 b8Q Be7 Bb2 d1B+ Nd2 Be2 Rb1 a1R f8N Ra2 Ng6 Qc7+ Qc5 Qc1+ Kb4 Bd8 Nb3 d2 Na5 d1B Ne7 Kd2 Bd5 Bb3 Qba7 Bed3 Ne2 Rb8+ Bb7 Bf7 Nc3 Qe1 Qb5 Qe3 Ba8 Rc5 Rg1 h1R Nd1 h2 Ba1 Rc8 Rb3 Rg5 Rg2+ Kc1 Rf2 Rg1 Qd5 Rg8 Qh5 h1R Bc3 Re8 Rbb2 Nh4 Rf6 Nhf3 Rf2 Qe5 Rb6 Rc5 Ba1 Qc7 Bc3 Nd2 Rf5 N2f3 Rff6 Bb3 Rf8 Bf7 Ba1 Nf5 Bf6 N5d4 Bd6 Rg7 Bg3 Rgg5
1bB1RBNK/1N1b2BQ/N2n3r/1p1Bb3/1Rrrq3/n2k3r/5Q2/1rqbB3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 e4+ Kc5 a4 f5 g5 b5 d6 h3 g6 h4 d7 c6 a5 f3 a6 f4 g7 f2 a7 f3 Na3 b3 Bb2 h2 Qe2 h3 Re1 Nh6 g8N Qe8+ Kf6 Nf5 d8B Na6 e5 Bd7 e6 Nd6 e7 Nb4 Nc2 Rh4 Ba5 Rd8 a8B Rc4 d4+ Kd5 Bg2 f1B Qf2 Be2 Bb7 Ke4 d5 c5 Bc8 Kd3 Bc3 Bd1 Ne2 b2 Ned4 b1R Nc6 Bh6 Ba1 Bd2 Kg7 Bf4 Kh8 Bg3 Rhg1 h1R Bg7 h2 Re5 Qg6 e8Q Qe4 Qg6 Bf4 Re8 Be5 Na3 Nc2 Qh7 Qf5 Be1 Qe4 Qfh4 f2 Na5 f1R Nb7 Rf3 Qf2 Rh3 Rf1 Rcb4 Rg1 c4 Bf3 c3 Rg4 Rc4 Rf4 Rg1 Bg2 h1Q Rh4 Nf5 d6 Rf1 Rf4 Rg1 Bf3 Rg6 Rh4 Rh6 Bg2 Qf4 Bd5 Qc1 Rf4 Qe4 Rg4 Be6 d7 Nd6 Rf4 Ne3 Nc2 Beg4 Nd4 Nc2 Ne6 Na3 Nc7 c2 Na6 Qe3 Bc3 c1B Be1 Bcb2 Na5 Qc1 Nb7 Qg6 Re4 Bbd4 Rf4 Ba7 Re4 Bb8 Rf4 Ra4 Rb4 Qe4 Bf7 Qc6 Rb2 Nf5 Ba2 Qc2 Bf7 Rc4 Rb4 Rd6 Be6 Rdd4 Bd5 Qc1 Re7 Rf8 d8B Rf6 Re8 Rfh6 Be7 Nd6 Bf8 Bd7
q1q3R1/3Bb3/1kpb1Q1b/1N4B1/1N1K2NR/R2qnbbQ/1Rr2n2/r4q1R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 a5 b4 g5 d4 f5 h4 c6 d5 Kc7 d6+ Kb6 d7 c3 h5 c2 h6 g3+ Kf3 a4 e5 a3 h7 g4+ Ke2 a2 Kd3 g2 e6 f3 e7 g3 e8Q f4 Qf7 f2 Nf3 g1B Ke4 g2 Kd4 Nh6 Qe8 Bd6 Qh5 Ng4 Nc3 Ne3 Nh2 f3 Qh3 Na6 Ng4 Bgh2 Bd2 Qc7 d8R g1B Rg8 c1B Bg2 Nc5 Qf1 Ba3 Bc1 Ne4 Bd2 Kb7 b6 Bhg3 b5 Be6 Bc1 Qc8 Bd2 Bd5 Bc1 Kb8 b7 Ka7 b8N Kb6 Na6 Be7 Bd2 Bad6 Nb4 B1h2 Bc1 Bgf4 Bd2 Bhg3 Bc1 Bh6 Bd2 Ka5 b6 Ra7 b7 Kb6 Nb5 Ra5 Qb1 f1Q Qb2 f2 Bf3 Qd1 Be2 f1Q b8R+ Qb7 Bd3 Nf2 Bf5 Bf3 Bd7 Qb1 Rg5 Rf8 h8R Rf7 Rbg8 Qc8 Rh5 Rf5 Rh4 Rc5 Qc3 Qh7 Rb1 a1Q Rb2 Ned1 Bg5 Ne3 Qc1 Qa4 Qa1 Qg6 Rh7 Rc2 Rf7 Qa2 Rf5 Ra7 Rc5 Qaa6 Rc3 Qab7 Ra3 Qba8 Qa2 Qf5 Qf7 Qh7 Qf6 Ra6 Rab3 Ra1 Ra3 Qhd3+
1BQb4/1K2B2r/1pQ5/2RNq1r1/rN1rq1Bk/2rB1R2/1nbqRq2/3B1n2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 a4 f5+ Ke5 h5 e4 c5 g4 b6 d4 b3 d6 b2 Kd5 h3 a5 c4 e5 h4 d7 h2 e6 h3 a6 c3 e7 c2 e8R Rh4 a7 Nh6 Re6 Nc6 Ne2 Na5 Na3 b1Q Nc3 Be7 Bd3 Qb2 Rf1 h1R Re2 h2 Rf3 Nc4 Kc6 Qe8 d5 Bd8 d6 Qe5 Bd2 c1R Nd5 Rc3 Qc2 Qb4 Be3 Nb2+ Bc5 Qbe4 Rc1 Rg1 Qa4 h1Q Nc2 Qh2 Nb4 Rh3 Qc2 Kh4 g5 Ng4 g6 Ne3 g7 Rg5 g8B Nf1 Be6 Qf2 Qa4 Qfe3 Qb5 Qd2 Qc4 Ba6 Bd4 Bb5+ Kb7 Ba4 Qc6 Bd1 Bg1 Rh1 Bh2 Bc2 Rfe3 f3 Bf4 f2 Rf3 Bc7 d8B Rh2 Be7 Bd8 d7 Rh3 Bh2 f4 Rfe3 f3 Bg4 Rc8 a8B Ra3 Qf6 Rcc3 Qc6 Ra4 Bf4 Qh8 Bb8 Qhe5 Qf6 Kg3 Qc6 Rh7 Bc4 Kh4 Bb3 Bb1 Bd1 Bc2 Rd3 Nh2 Rde3 f1R Rd3 f2 Rf3 Bc7 d8Q Rh1 Bf6 f1Q Be7 Qf2 Qde8 Nf1 Qc8 Bb3 Rc2 Bd8 Rc1 Rh3 Rc2 Rd3 Rc5 Bc2 Rfe3 Qeg3 Nc7 Rd5 Qg6 Qc3 Kc6 Qcd4 Bb7 Rh6 Ba6 Qgf4 Kb7 Rh7 Qc6 Qde5 Rd3 Rd4 Ncd5 Qd2 Rb3 Rc3 Bb5 Rcc4 Rf3 Rc3 Ba6 Qe6 Bd3 Q6e5
6QR/Q1rbbq1p/q1n2Q2/nBbN3k/KQ2Q2q/6qR/2b1Nr1B/2N4b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 c4 Kf7 Kc2 Kg6 Kb3 a5 e4 d5 g4 f3 b6 f2 e5 h3 b7 d3 g5 h2 e6 f4 c5 f3 c6 d2 c7 d4 e7 a4+ Ka3 d3 b4 Kh5 b5 Ra7 g6 Bd7 c8N Nc6 b8Q Na5 Nb6 Rc7 Qa7 Qb8 Be2 f1Q g7 Qf2 Nd5 Qh4 Qb3 d1B b6 d2 b7 Bc2 Qb4 d1Q Nd2 Qf1 Bb5 f2 Nb3 Qd3 Qb6 f1Q e8Q+ Qf7 Qe4 Bc5 Qf6 Ne7 g8Q Nec6 Bf4 Qa7 b8Q Qa6 Rc1 Qdg3 Qa7 Be7 Ne2 Bc5 Rhd1 h1B Rd3 Be7 Ra1 Bc5 Nbc1 Be7 Qgg7 Rf8 Qg8 Bc5 Be3 Be7 Bg1 Bc5 Bh2 Be7 Kb2 a3+ Kc3 a2 Re3 Qd6 Rh3 Qg3+ Kb2 Bc5 Rb1 a1B+ Ka2 Bc3 Ka3 Bd2+ Rb3 Bg5 Ka4 Qe8 Qd8 Rf2 Qf6 Bb1 Rf3 Qf7 Rf5 Bd3 Re5 Bb1 Re8 Bc2+ Nb3 Qe7 Qfc3 Nb8 Qf8 Bb1 Nbc1 Qf7 Qcb2 Bge7 Qf6 Nbc6 Q8g7 Qfg6 Rh8 Qf7 Qg8 Bc2+
b6R/1pbQn1b1/Q1bBB1K1/BrB5/2Q4N/4q2B/Nb1R3n/1krqn1n1 w - - 0 1 illegal: Other
RR2r3/p2r2b1/4nkqr/R4b2/1K6/1bqQB1B1/1b1B1QBr/1nrNN2B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 d5 h4 g5 c4 f5 b4 f3 b6 g3 b5 d3 Kc3 d4+ Kb4 f4 e5 g2 c5 d2 b7 d3 h5 g4 c6 f2 h6 f3 h7 g3 c7 Bg7 b6 Qd4+ Ka5 Nc6+ Kb5 Nf6 b8B Bf5 c8R Ne4 e6 Kf6 e7 Nd8 e8B Ne6 b7 Qc3 Bf4 Rb8 Qb3 d1R Bce3 d2 Bc6 Rc1 Ra5 d1R Qd5 Nd2 Qd3 Ra8 Rg8 Re8 b8B Rc2 Ba8 Rdc1 Rh2 Rb2+ Ka4 Rb7 Rh4 Rd7 Bh6 Rc2 Rb4 Rb2 Bbf4 Rc2 Rb8 Ra2+ Na3 Nb1 Nh3 g1B Bg2 f1R Nf2 Rc1 Nd1 f2 Bae4 Rb2 Nc2 f1B Ne1 Rbc2 Bh1 g2 Bg3 Bf2 Bd2 g1Q Beg2 Bd4 Bhe3 Be2 Kb5 Bf3 Ka4 Bd5 Ra8 Bb3+ Kb5 Ree7 Rgb8 Rhe8 h8Q Rd6 Qh2 Red7 Bd5 Rc6 Qf2 Qg2 Bh2 Qg6 Bdg2 Rc4 Bd5 Nd8 Bg3 Qb2 Qf3 Ne6 Bb4 Rh2 Bbd2 Qc2 Be4 Bb2 Qf2 Qc3 Bef3 Rch4 Bfg2 Bc4+ Ka4 Bd5+ Kb5 Rh6 Ka4 Bb3+ Kb5 Qe5+ Kb4 Qc3+
1Q1nb3/B1N1Qb1q/3nQq1r/1Rr2Qbk/1qr2qb1/1BN1R1p1/8/1RK3Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 e4 Kg6 c5 d5 b6 d3 e5 f3 e6 a4 e7 f2 e8R g3 b5 a3 c6 g4 c7 g2 b7 f4 b6 a2 Na3 g3 Re3 d4 Re7 f3 Nc4 Qd6 Rh2 Bd7 c8Q Rh6 Re3 Be8 Re4 Ne7 Qc5 Ra5 Re1 Nf5 Re3 Nc6 b8Q Kh5 b7 Be7 Qc7 Nd8 b8Q Bg5 Ne2 g1Q Nb6 Qh1 Rb1 a1R Nc3 R1a4 Nbd5 Rc4 Qe7 Bf7 Bh3 f1Q Nc7 Qf6 Qc8 Nd6 Q5f5 Rac5 Qce6 Qfg1 Bb2 Qe1+ Kc1 Be8 Re2 f2 Bg2 f1Q Bd5 Qf4 Rh2+ Qe2 Qg1 Qeg4 Ba1 Bf7 Rhb2 Qhe4 Rb5 d2+ Kb2 d1B Kc1 d3 Bb2 Rb4 Bb3 Rbc4 Ba3 Bf3 Bb4 Bg2 Ba5 Qb7 Bb6 Bc6 Ba7 d2+ Kc2 d1B+ Kb2 Rh7 Kc1 Kh6 h5 Bce8 Qfe4 Qgf5 Q4d5 Bg4 Qde5 Kg7 h6+ Kg6 Qe4 Rh8 h7 Kh5 Qc2 Q5g6 Qcf5 Qb6 Ra5 Qb4 Rb5 Rf8 h8Q+ Qh7 Qc8 Rg8 Qb8 Rg6 Qg8 Bc6 Qge8 Rh6 Qee6 Bd7 Q8e7 Bde8
QNR5/1Qqn1q2/bn1q4/1N1B1k2/2B1rb2/2Kbp3/1qR3N1/1BBr1rBb w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 b4 h5 f4 e5 c4 d5 g5 a5 c5 a4 b6 e3+ Kc2 a3 b5 d3+ Kb3 d4 b7 e2 c6 e1Q c7 a2 b6 e4 Be3 d2 Be2 d3 Qc2 d1Q Nc3 d2 Nf3 h3 Nb5 h2 Bg1 h4 Rc1 a1Q Bc4 Kf5 g6 h3 g7 Qf1 Ne1 Bd6 Ng2 Nd7 b8N Ba6 c8B Qa2+ Kc3 Qc7 b7 Nf6 g8B Rh4 Qa4 e3 Rc2 Qff3 Qb3 Qh5 Bd5 Qf7 Nc6 Rg4 b8Q Rh4 Bb7 Nb6 Qb1 Ra7 Qa8 Nfd7 Nb8 Rg4 Bf2 Rh4 Rf1 h1R Bg1 h2 Rf3 Rg4 Rg3 Rh4 Rg8 Rg4 Rc8 Rh4 Bf2 Rf1 Bg1 h1B Bbc6 Qf3 Bb7 d1B Qb4 Be2 Qb1 Kf6 f5 Bd3 Qb2 Kg5 f6 Qf4 Be4 Qh2 Bbd5 Bg3 Bg6 Re4 Qb1 Bf4 Qb4 Qe8 f7 Rd1 f8B Qf7 Bh7 Qh6 Bc5 Qhd6 Qb3 Rb7 Ba3 Rf1 Bc1 Kf6 Bg8 Kf5 Bh7+ Kg5 Ba3 Be2 Rd2 Re8 Qa7 Na8 Nd4 Re5 Bc2 Bd3 Qb5 Rb6 Qc6 Rb5 Qcb7 Rbb1 Nb5 Rbd1 Bc1 Nab6 Qaa8 Re4 Bb1 Kf5 Rc2 Qb2+
Q2q1R1B/3bqRbN/q1Nk4/1nq2r2/1bR1K1n1/1B1p3R/1Qrb4/nN4R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 d5 h4 g5 b4 f5 c4 a5 e4 a4 b6 a3 e5 a2 e6 f3 b5 f4 c5 g3 c6 g2 b7 g4 b6 g3 h5 f2 h6 f3 h7 Kd6 c7 Bg7 e7 Nc6 e8R Bd7 b8Q Ra5 b7 Qe7 Be3 Nh6 Rh2 Ng4 Rg8 Na7 Rh4 Nb5 Nh3 g1B Qa7 g2 Be2 f1Q c8R f2 Qd2 Qc1 b8N f1Q Rgf8 Qc5 Rc7 Qff6 Rf7 Rc8 h8R Qh6 Bg5 Be3 Bf6 g1B Qb2 Bd2 Rhf8 Bf2 Qb7 Bfe1 Bd1 Bb4 Bb3 Bed2 Bg5 Qhf6 Qa8 Qfe6 Be3 Qh6 Nc6 Qg6+ Ke2 d3+ Kf3 d4 Ng5 Qh6 Rh3 Qhe6 Na3 Qec4 Rc1 a1N Nh7 Qh5 Qa2 Na7 Rd8 Bh6 Nf6 Kc5 Nc2 Be8 Rh2 Bdc3 Rg1 d2 Ne5+ Bc6+ Nd5 d1Q+ Ke4 Qb5 Rh3 Qa6 Rdf8 Be1 Na3 Qdd3+ Kf3 Bed2 Qb2 Rb5 Nec4 Qhe5 Nb1 Q5d6 Ne5 Qc4 Rh5 Qdd8 Ke4 Kd6 Rh3 d3+ Bd4 Bd7 Nf6 Rd5 Nh7 Nb5 Rf5 Qcc6 R5f7 Qcb6 Bc3 Rc5 Bd4 Rc2 Rc3 Rc5 Rc4 Rd5 Bc3 Qc5 Bd4 Qf6 Nc6 Rf5 Bc3 Qg5 Bh8 Bg7 Qb7 Qh4 Qa8 Qhe7+
rr4kn/3b3q/1nBb2N1/5R2/1RqbBBn1/2pN4/5nQ1/1BBbNKQr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 h5 e4 f5 d4 Kf7 g4 c5 d5 a5 b6 c3 b5 c2 d6 f3 g5 h3 e5 f4 d7 a4 b7 a3 b6 a2 Na3 h2 Bd3 f2+ Kf1 c4 Ne2 h4 Rb1 a1B Rb4 h3 Be4 Ne7 g6+ Kg8 g7 Qc7 d8N Ng6 e6 Bd6 e7 Bd4 e8B Nd7 b8B c3 b7 Qc4 Nc6 Nb6 Rg1 h1Q Ne5 h2 B8c6 Bd7 Bc7 Rb8 Nd3 Ra8 Nb1 Rb8 Nd2 Ra8 Nf3 Rb8 Bd2 c1R Nfe1 Ra1 Bc1 Raa8 Qd2 Rh5 Qe3 Nh8 Qh3 Rh4 Qg2 Rh7 Ng3 Rh3 Nf5 Rh7 Nh4 Rh5 Ke2 f1N Ng6 Ne3 Rf1 Ng4 Rf2 Rh4 Qg1 f3+ Kf1 Be7 B7f4 Bd6 Ra2 f2 Ra5 Qf3 Rh5 h1N Rf5 Qe3 Qg2 Rh2 Qg1 Qh3+ Qg2 Qh7 Qg1 Rd8 b8Q Rh5 Qa7 Rdb8 Qa2 Rh3 Qe2 Rh2 Qf3 Rh3 Qfg2 Rh6 Ke2 f1B+ Kf3 Ne3 Rg5 Ng3 Kf2 Be2 Rf5 Bd1 Rb2 Nh5 Rb4 Ng4+ Kf1 Nf2 Ba4 B4c5 Bc2 Bd4 Bb1 Nf6 Bc6 Kf7 g8B+ Kg7 Be6 N6g4 Bed5 Rh1 Be4 Kg8
3q4/2q2BB1/1RbQn1n1/1RNb2qN/2Qp2kr/1N1Nb1qn/2Q1r3/Kb5N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 e4 Kg5 c4 h5 Kc2 f5 Kb2 a5 g4 d5 c5 h3 e5 d3 c6 d2 b6 h4 b7 h2 c7 h3 b5 a4 b6 a3+ Ka2 d4 e6 f3 e7 f4 e8Q f2 Bc4 f1Q Qe5+ Bf5 c8Q f3 Qd6 f2 Bf7 Qd3 Qdc2 f1Q Q8c4 Qf4 Ne2 d1N Nd2 Nc6 b8N Nge7 b7 Nf2 Rb1 Bh6 Rb6 Qdg3 Nd7 Ng6 Ka1 a2 b8N Kh4 g5 Kg4 Re1 h1B Na6 h2 Nac5 Nh3 Ndb3 Bd5 Nd3 h1B N7c5 Qc7 Be3 Nd8 Rb1 Ne6 Rb2 Qe5 Bf4 Qf6 Be5 Qfd8 Bg7 Bc6 Rb1 Bhd5 Rb5 Nh4 g6 Be3 Rb2 Qg5 Rb6 Rae8 Rb5 Nf3 Rb6 Ne5 Rb5 Rh4 Rb1 Qh2 Ng3 Re7 Nh1 Qg3 Bf6 Re8 g7 Ng6 g8N Bfe4 Bg7 Qcd8 Na5 Bf5 Rb6 Bfe4 R1b5 Qc7 Kb2 a1Q+ Kb3 Qf1 Kb2 Bc1+ Ka1 Nef4 Qh2 Bd2+ Nc1 Bb1 N1d3 Re3 Qf2 Ne6 Nab3 Re5 Qh2 Qff6 Qf2 Bc1 Qfc2 Qfd8 Nf6+ Kf5 Na4 Re2 Nh5 Be3 Nac5 Kg4
rR4Q1/rNR2q1r/2R4K/2q2Q1n/pR6/3nk1q1/NRn1br1q/bN1BB3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 c5 d3 g7 Kd4 e5 a4 c6 h3 c7 f3 b6 h2 b7 f4 e6 f2 e7 h4 e8R f3 b5 h3 b6 Rh7 Re7 Nd7 b8Q Nc5 b7 Nf6 g8R Qd6 Re8 Bg4 c8N Rg7 Nc3 Nh5 Nb6 Qg3 Be2 f1Q Ra2 f2 Qc2 Ra7 Bd1 Be2 Rh8 Be7 Nd7 Bf6 Nb1 Be5 Na3 Ke4 Rh7 d4 Rb2 Kf4 Nf3 Ke4 Rg1 h1R Nb1 h2 Re6 Kf4 Rg2 Qg1 Ne1 f1R Qc8 Rf2 b8R Qf1 Reh6 Rg1 R2b4 h1Q Re6 Qhh2 Rc6 Ra8 Qg8 Re7 Nf8 Rea7 Ne6+ Ke4 Ba3 Bf6 Rhc7 Be5 Kc1 Ke3 Nd8 Bf6 Nb7 d2+ Kb2 Be5 Nd3 Bg7 Nc1 d3+ Qc3 Bh8 Qf6 Bg7 Kc3 Bh8 Bc2 d1Q Na2 d2 Bb3 Qde1 Bd1 Nd3 Kc4 Qg5 Qf5 Ba1 Kd5 Qgg3 Ke6 Qe5+ Kf7 Qc5 Bb3 d1N Kg6 Qec3 Kh6 Q3e5 Rd7 Qeg3 Rdc7 Rf4 Qgh7 Qgf3 Be6 Ne1 Rb2 Kd4 Rg4 Nf2 Qff7 Nfd3 Qhg8 Ke3 Bb3 Q3g2 Bd1 Nc2 Bb4 Qgh3 Rh4 Rg7 Rg4 Q3g3 Be1 Qff3 Qd7 Qfd5 Qdf7 Rf2 Qf5 Qf7 Rgb4 Rh7+
b3QB2/4q3/N1KN2RB/1rb2pq1/Rr1BB3/1r2n1qk/N2bQB1n/2b2q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 c4 g5 e4 f5 b4 a5 e5 f3 h3 d3 c5 a4 c6 a3 e6 a2 c7 f2 b6 g3 b5 g2 b7 d2 e7 g4 e8N g3 b6 Na6 b8B Nh6 b7 Qg5 Nd6 Ra7 Qe2 d1Q+ Bd2 Ng4 Ne4 Nh2 Qb5 Qe2 Nd6 Qee7 Bd3 f1Q Nc3 Bh6 Nge2 g1Q Nd4 g2 Be4 Nb4+ Kc5 Nd5 Qe2 Qgf2 Rg1 Ne3 Nc6 Qfg3 Nb4 Rh7 Bc1 Ra4 Na6 Rb4 Ba7 Rb3 b8B Bb7 c8Q Ba8 Qe8 Rf7 Rb1 a1B Na2 Bc3 Ra1 Bd2 Bc7 Bg7 Ba5 Bb2 Bc3 Rh7 Bg7 Rb4 Bf8 Rf7 Rh1 g1B Bb6 Bf2 Rg1 Ba3 Bb2 Rh7 Bbg7 Bac1 Bh6 Qeg7 Nf7 d5 Nd6 d4 Rg2 Qa7 Rg1 Rb7 Kc6 d3 Bc5 Qgg2 Bd4 Kg3 h4 Kh3 h5 Qf3 Rg4 Qg3 Bc5 Bc3 Bb6 d2 Bc5 d1R Bb6 Qg8 Rg6 Rd3 Bc5 B3d2 Bd4 Neg4 Bb6 Bg1 Bf2 Ne3 Re6 Q8g7 Nc3 Nc4 Bb6 Q7g5 Ra4 Re3 Na2 Reb3 Rg6 Bd4 Nf7 Qab8 Bbc5 Ba1 Bf2 Qbd8 Nd6 Bac3 Bhg7 Ne3 h6 Ba1 h7 Qde7 h8B Bd4 Bh6 Bc5 Bd4 R7b5+
rbqN2Br/2B5/1rRN1Q1n/2prn3/4q3/kq1NqQ2/B5KR/nb2B1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 b4 a5 d4 f5 e4 h5 g5 a4 d5 a3 b6 c3 b5 Kc5 e5 Kb4 d6 c5 e6 h3 b7 f3 d7 h2 g6 a2 b6 h4 g7 h3 e7 f4 e8B c2 Nd2 Bd6 Bc4 Nc6 b8B Ne5 b7 Nh6 g8Q Qb6 d8N Bf5 Bb2 c1Q Bc7 Bb1 Bd4 Ka3 b8B Qb3 Ne4 Qce3+ Kf1 f2 Qg6 Kb4 Ne2 Ka3 Ba5 Bc7 Qf6 Bd6 Rg1 h1Q Bbc7 h2 Be1 Qhf3 Bd7 h1R Bde6 Rh5 Rg6 Qg4 Bf7 Qc8 Kg2 f1R Nc1 Rf5 Bg8 f3+ Kg3 f2+ Kg2 Rh1 Nd3 Rhh5 Qf3 f1Q+ Kg3 Qfe2 Bce6 Qc1 Bg1 Qcc4 Bef7 Qe3 Kg2 Rh3 Bb8 Bc7 Nd6 Qce4 Be6 Nc4 Bef7 Rd5 Be6 Ne5 Bef7 Bb6 Bc7 Ba7 Be6 Bb8 Bef7 Nf5 Rh6 Rh1 Rh2 Nh6 Be6 Bc2 Rd1 a1N Rd2 Bb1 Rb2 Qc3 Rb6 Qb3 Rc6 Rh7 Bb6 Rb7 Bc7 Rb6 Qg7 Qbb4 Kh3 Nhf7 Qf6 Rd4 Kg2 Qc3 Bb3 Rd5 Ba2 Qb3 Rh6 Rh3 Rg6 Rh7 Rh6 Rh8 Rh2 Nh6
1k1BB1B1/2q2n2/r1R2p2/3NN1r1/2R1n2b/2bqQbB1/n4bqK/1BqQ2N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 Kg2 Kd7 h4 Kc7 b4 a5 e4 g5 c4 a4 c5 f3+ Kh2 f2 h5 g3+ Kg2 a3 h6 a2 c6 g4 h7 d3 e5 d2 e6 d4 e7 d3 e8B Ra6 Qe2 d1Q Nc3 d2 Rh2 Nf6 Rh6 Bb7 Qe3 Ne4 Bd3 Be7 Bb1 Rg8 h8Q Bh4 Qhd4 Nd7 b6+ Kb8 b5 Ne5 Nd5 f1Q+ Kh1 g2+ Kh2 Ba8 b7 Qc7 Ba3 Rg7 Be7 Rg5 Bd8 Qc2 Re6 d1N Rd6 Ndc3 Qd1 f6 Re6 Qcd3 Rd6 Qb6 c7+ Ka7 c8B Nf7 Rc6 Kb8 Bf5 Qa5 Bh7 g3+ Kh3 Qc7 Bg8 Qd6 Bc2 Qc7 Rc1 a1B Bb1 Na2 R1c2 Bd4 R2c4 Ka7 b8B+ Kb7 b6 Bc3 Qh5 Qc1 Qd1 Kc8 Nf3 g1B Kg2 Bf2 Ng1 Ne5 Kh1 g2+ Kh2 Nf7+ Rd6 Qc5 Rc6+ Kb7 Be5 Qe7 Bg3 Qc7 Qee2 Kb8 b7 Ka7 b8N Bb7 Nd7 Ka8 Ne5 Kb8 Ngf3 g1Q+ Kh3 Qf1+ Kh2 Bc8 Ng1 Bg4 Qee1 Bf3 Qe3 Qg2#
qRbN3Q/1RpB4/1B6/n1q2Q1K/rnB1Q3/1r1nbQ1b/1NQ1r3/4knb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 a5 e4 c3 b4 f3 d4 h3 e5 Kd5+ e6 Ke4 d5 c2 b6 f2 d6 h2 b7 a4 b5 a3 b6 a2 d7 Bh6 e7 Na6 e8Q+ Qe7 Be3 c1N Bb5 f1B Na3 f6 Rb1 a1B g3 Bd4 Nh3 Bg2 Rg1 h1R Nc4 Rh2 Nf4 Bf1 Qf8 Re2 b8Q Qa3 b7 f5+ Kh4 Kf3 d8Q Ne7 g4 Nc6 Ne6 f4 g5 Ba7 g6 Rg8 Bd2 Kf2 g7 f3 Qg5 Bd4 Ba5 Qc5 Qd5 Bf4 Qf6 h5 Nd8 Ra7 Rh1 Bh2 Kg5 h4 Qa8 h3 Qc2 Bf4+ Kg6 h2 Qff5 Bg5 Rg1 h1Q Qde6 Rh8 g8B Rh3 Rg3 Bg2 Rb4 Bd2 Nb2 Ke1 Qe3 f2 Bgc4 f1N Qec3 Ncb8 Bd7 Bg1 Qh8 Bf4 Rgb3 Nc6 b8Q Rd3 Qbb7 Bh3 Kh5 Bfe3 Rb6+ Rc3 R3b5 Nd3 Rb4 Rb3 R6b5 Nd4 Qg2 Nc6 Rb8 Bef2 R4b5+ Nab4 Qg4 Qe4 Qf3 Be3 Qb7 Ne7 Qbd5 Nc6 Qde5 Qed5 Qee4 Ra8 R5b7 Ra6 Bb6 Ra4 Ra7 Na5 Qeg4 Ra2 Qge4 Qa8 Rab7 Ra4
K4qQB/2kqB3/2rb1r1p/1n1Q1pB1/3N1qB1/bnB5/b3Q3/1nNrR2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 c5 Ke4 f5+ Kd5 a5 b4 c3 d4 h3 e4 c2 g4 a4 g5 c4 b6 f3 b5 h2 g6 h6 g7 f2 e5 a3 b7 a2 b6 c3 Be2 f1R Na3 Na6 b8B Qe8 e6+ Kd8 b7 Bd6 Bg4 Qf8 Kc6 Nf6 g8Q Ne4 d5 Nd2 Nb5 Nc7 Ne2 Nb1 Nbd4 Nb5 Kb6 Rh7 e7+ Kd7 Bb2 Rf7 Nc1 Rf6 Bc7 Ra4 b8B Rc4 Bd8 Rg1 Qe2 Rd1 Qe5 Bb7 e8Q+ Kc8 Re1 h1Q Qh5 Qe4 Be7 Qd3 Qh1 Bc6 Qe2 Be8 Qhf3 Bf7 Rh1 Kd7 Kb7 Rc6 Ka8 Kc8 Bc7 Qd2 Ba5 Qd3 Ncb3 c1Q Qfe4 c2 Bac3 Qf4 Nc1 Qde3 Q4f3 Qe6 Qfg2 Qd7 Re1 Bc5 d6 Bb3 Q2d5 Ba3 Nd3 c1B Rh1 Be3 Nc1 Bf2 Re1 Bg3 Rh1 Nd2 Rb1 a1N Re1 Ba2 Rh1 Qde8 d7+ Kc7+ d8B+ Kc8 Rg1 Nab3 Re1 Qd7 Ra1 Rfe6 Bg5 Nb1 Bde7 Rg6 Ne6 Bh2 Bh8 Bg3 Nd4 Rgf6 Bc3 Kc7+ Bd8+ Kc8 Qf1 Qe4 Qe2 Rd2 Rg1 Bgd6 Be7 Qf4 Rd1 Rd3 Rh1 N1d2 Rb1 Rg3 Nd3 Rg1 Rd1 Nb1 Nc1 Re1 Rd3 Rf1 Rf3 Re1 Rff1 Rd1 Re1 Kc7+
Q3Knq1/4p1qR/BRb1n1nN/2pb2B1/N5RQ/RN1rbk1r/1r6/1R4q1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 e3 b4 c3 f5 h3 b6 e2 g5 e1Q f6 h2 b7 c2 g6 h4 f7 h3 g7 a4 b5 a3 b6 a2 Qh5 Nf6 g8R Na6 b8R Nc5 b7 Nfd7 Ba6 Bh6 Nc3 Nf8 Na4 Be3+ Kc4 c6 d4 Nce6 d5 c5 Ne2 Qg1 Qh4 Ke5 Kb5 Kf5 Bd2 c1N Kc6 Nd3 d6 Ndf4 d7 Ke4 Rg4 Kf3 Nc1 N4g6 Nb3 Qe8 Rb1 a1Q Bc1 Ra7 Ra8 Qg7 b8R Rb7 Bd2 Rb4 Rb6 Rh5 Ra7 Rd5 Bc1 Rd3 Bd2 Nh7 f8Q+ Qef7 Qg8 Nhf8 d8N Rb5 Qgh8 Qfg8 Nf7 Rb4 Nh6 Rb5 Nc1 Rb2 Ra8 Nd4+ Kc7 Bb7 Kd8 Nde6+ Ke8 Qe1 Rhg1 h1B Nb3 h2 R1g2 Qg1 R2g3+ Ke2 Rh3 Bhd5 Ra7 h1R Ra8 Bd4 Bg5 Be3 Rf3 Qe5 Rf7 Rh3 Rh7 Qd4 Qe5 Qc3 Qb8 Kf3 Ra7 Qf6 Qa8 Qfg7 Nc3 Nef4 Bc4 Nh5 Ra3 Nhf4 Ba6 N4e6 Na4 Bbc6+
3rN3/p1BB2Rb/q1QbK1n1/4n1q1/4rkp1/NN2Rn1Q/2BNb3/1N1r3q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 g5 b4 f5 e4 d3 b6 f3 b7 g3 b5 d6 h5 f4 b6 g2 h6 g4 h7 d2 Bd3 f2 Nf3+ Ke6 e5 f1B Ra3 Nd7 b8N g1Q b7 Bh3 Na6 Bg2 b8N Qa5 Nc6 Qgb6 Ncb4 Bf1 c3 Rb8 Qc2 d1R Nfd2 f3 Rh5 f2 Rg5 Qd8 Rg7 d5+ Kd4 Qg5 c4 Rb6 c5 Be2 c6 f1N c7 Nh2 Qc6+ Bd6 Bc2 Ne7 Re3 Rd8 h8Q Ng6 Qh3 Bb7 c8B Nf3+ Kc3 d4+ Kb3 d3 Kc4 Kf5 e6 Nc5 Kd5 Nd7+ Nc5 Nde5 e7+ Kf4 e8N Qa6 Bd7 Bc8 Ke6 Rb5 Nf1 d2 Nb3 Rd5 Ba3 Rd4 Bb2 Rc4 Bd4 Bb7 Bb6 Re4 Bc7 Rd4 Qc4 Be4 Qc6 B4d3 Na3 Re4 Na2 Rb1 Nc3 d1Q Nfd2 Qh1 Bd1 Rc1 Bc2 Rd1 Ncb1 Ra4 Nac4 Nf8+ Kd5 Bh7 Nca3 Nfg6 Ke6 Re4
1rKB1k2/rB1QNBn1/3R4/bR4Nb/R1Q2bn1/1bp2b2/R4p2/n2rR1q1 w - - 0 1 illegal: No possible last move, all moves rejected
1B2B1k1/K1R1r1B1/2Q4r/2Rr1N2/2r4N/bp1q1bb1/1BQ3pn/Bn1r2nQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 a4 Kf7 e4 c5 d4 g5 h4 b5 e5 b3 h5 c4 a5 c3 h6 c2 e6+ Ke7 a6 f3 Ke3 b2 h7 b4 a7 g3 Ra5 f2 Nd2 b1N Nc4 b3 Rc5 g2 Nf3 g1B Nd6 g4 Nh4 g3 Bb2 c1R Qc2 Nc6 Bb5 Ne5 Be8 f4+ Ke4 f1R Ndf5+ Kf6 d6 f3 Kd5 f2 d7 Nf3 Kc6 Rfe1 e7 f1R d5+ Re5 d6 Bh2 Kb5 Bb7 Rg1 Rc8 a8Q Rc7 Kb6 Rfd1 Ka7 Nh6 Rg2 Ng4 Ba1 Qc8 d8B Ng1 d7 Bf3+ Qb7 Rd5 Rd2 Rc6 Bc7 Rd1 d8B Qd7 Bb8 Ke6 Ba5 g2 B5c3 Qd6 Bcb2 Bg3 Re2 Rc8 Qc6 Nh2 Re4 Kf6 Rb4 Ke6 Rb7 Re4 Rc7 Rc4 Bd7+ Kf7 Bg7 Re8 Bgb2 Rg8 h8B Rg6 Bhf6 Rh6 Bg7 Rd8 e8Q+ Kg8 Qe3 Re8 Qe1 Re7 Be8 Qg6 Nd4 Qd3 Ndf5 Ne2 Qh1 Ng1 Rb5 Rf7 Ra5 Ba3 Rc5 Re7
4R1nr/N1BQ3r/nQN3pb/2rBpb2/4N1b1/4N2r/r3kqN1/n2RB1K1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 c4 Kf7 h4 Ke6 f4 Kf5 Kf2 d5 b4 e5 h5 a5 c5 d3 h6 d4 b6 d2 h7 a4 b5 g6 b7 d3 b6 a3 c6 a2 c7 Qe8 Na3 Bb4 Nc2 Bc3 Ne2 g3+ Kg1 Kg4 f5 Kf3 f6 e3 f7 g2 f8B Qe7 Nf4+ e2 Ne3 Nd7 b8N Qf6 b7 Nc5 Bd6 Na6 Nc6 Bf5 b8Q Bd4 Rb1 a1N c8N Ra7 Qa4 d1B Bc7 e1R Qb6 Re2 Bd2 Bb2 Bc3 Bc1 Be1 d2 Qad4 Rf2 Qd7 Be2 Rb5 d1R Rc5 Rb7 N8a7 Rd5 Ra5 Bd1 Bc4 Rc5 Ra4 Ra2 Bd5+ Be4 Rd4 Be2 Rh5 Qh4 Rd1 Qf2+ Kh2 g1R+ Nfg2 Bf1 Rf5+ Ke2 Rf8 Bf5 Re8 Bg4 Nc4 Bh6 Ne3 Qf6 Nh4 Rg3 Nhg2 Qf8 Kg1 Rh3 Bd6 Rc7 Qf7 Rb7 Bd2 Kd3 Qg7 Rd7 Bc7 Bfe2 Qe7 Qf3 Qe6 Bf5 Qd6 Qf4 Qe6 Rg7 Qd7 Beg4 Be1+ Ke2 Nf1 Ne7 Nfe3 Rhg8 h8N Rh7 Nf7 Rgh8 Ng5 Ng8 Ne4 Qf2+
N2Qr1bK/q1N2b2/Np2N1b1/5n1N/R2p2B1/3nB1Q1/rkB1R2r/1bn3b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 h5 a4 e5 f4 b6 g4 d3 c4 d6 a5 b3 a6 d2 c5 b2 a7 h3 c6 h4 c7 h2 Ne2 h3 Ra4 Na6 Nbc3 Nh6 Na2 Be6 c8B Bf7 Nb4 Qe7 Ng3 b1B+ Bd3 Bg8 Re1 h1B+ Qf3 d1B Re2 h2 Be3 Bdb3 Bc2 Bbf7 Be6 Re8 a8N Nc5+ Kd5 e4 Na6 Nd3 g5+ Kg7 g6 Kf6 g7 Nc1 Kd4 d5 Qg2 Qa7 Nh5+ Ke7 f6+ Kd6 Bg4 Nf5+ Kc3 Bg6 f7 Ke6 Qf3 Bc5 f8N+ Kd6 Qh3 Bg2 Qg3 h1R Ne6 Rh2 Nec7 B6f7 Bf2 e3 Bg1 Be4 Bf2 Bh7 g8Q Rg2 Qg5 Bhg8 Qd8+ Kc6 Re1 e2 Be3 Nh6 f5 Rh7 f6 Beg6 Bg5 Bg1 Be3 Rh2 Kd4 Rg7 Rf1 e1N Rf2 Ned3 Re2 Nf5+ Kc3 Be6 f7 Rh7 f8N Bef7 Nfe6 d4+ Kc4 Rg2 Nf6 Rhh2 Nh5 Kb7 Kd5 Rf2 Ke4 Kc6 Qb8 Nf4 Ke5 Nfd3+ Kf6 Rfg2 Nd5 Kb5 Qd8 Rf2 Nab4 Kc4 Ndc7 Kc3 Nba6 Nd6+ Kg7 Kb2 Kh8 Nf5 Re1 Rd2 Re2 Kc3 Bd1 Ra2 Bc2 Kb2
K4B2/N1rB1q2/2b1br2/QN4b1/p1B1R2n/p1Rb1k1q/1n2N1bB/1Q4rB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 a5 e4 c5+ Kc4 Ke5 Kb5 h5 g4 c4 b4 c3 d3 h3 d6 h4 d7 a3 g5 a4 g6 c2 g7 f3 Ne2 f4 Nbc3 h2 Bg2 h3 Re1 f2 Bh1 f3 Bh6 f1B Rc1 Qc7 d8Q Ne7 g8B f2 Bc4 Nf5 Qg5 Qh7 Kb6 Be6 b5 Nd7+ Kb7 Be7 b6 Ra6 Bf8 Bg2 Nb5 f1B Qgd2 Qh5 Qa5 Nc5+ Kb8 Bg5 b7 Rb6 Ka8 Qf7 b8B+ Rd6 Bc7 Nh4 Bb8 Rh7 d4+ Kf6 d5 Ke5 Bc7 Nd3 Bb8 Nb2 Bc7 Kf6 e5+ Kf5 Bb8 Rc6 d6 Ke4 d7 Kf3 d8N Rb6 Bbd6 Rb7 Bb8 Rh6 Nc6 Rg6 Nca7 Rf6 Ra1 c1Q Rb1 Qc2 Rc1 Qf5 Rc3+ Qd3 Qb1 Qe3 Ng3 Bd3 Ne2 Kg4 Ng1 Bge4 Bg2 Bc6 Bbd6 Qf3 Re4+ Kg3 Bb8 h1B Ne2+ Kf2 Bc7 h2 Bcd6 Qh3 Bc7 Bed7 e6 Bc8 e7 Be6 Rg4 Ke3 e8B Kf2 Bgd5 Bhe4 Be5 h1R Bh2 Rg1 Bd7 Bh1 Be4 Ke3 Bh7 Bhd5 Be4 Kf2 Bh1 Bg2 Rd4 Kf3 Re4 Rc7+
2qQrRRq/2nb1B1n/n7/N2qbpQ1/1RB2np1/K7/1B4BB/1kNr1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 Ke4 Kc2 f5 Kb3 a5 c5 g5 c6 d5 c7 g3 b6 f3 b7 g4 b5 f2 h5 g2 b6 d3 h6 d4 h7 d2 Na3 d3 Nc4 Bd7 c8B Nf6 Ra4 Bg7 Ka3 Na6 b8Q Re8 h8R Nh7 b7 Be5 Rb4 a4 Rg8 Ra7 Qb3 d1N Bb2 Nc3 Na5+ Ke3 Rh4 Kd2 e4 Nd5 Ne2 g1N Bg2 f1N Nc1 Ne2 Rf8 Ndc7 Qg8 Kc2 Qg5 d2 Rh6 d1Q Rg6 Qd2 Rgg8 Qd4 Qa8 Qc4 b8B Nf4 Bb7 Qd4 Bd5 Qc8 Bc4 Kb1 Qd5 Qc5 Qd6 Qb5 Qdf6 Qd5 Qd8 Bf6 e5 Bh8 e6 Be5 e7 Rb7 Rb3 Rb4 Be2 Rd4 Bc4 Rd2 Ba7 Rd1 Bg1 Be6 Bh2 Bd7 Rb6 Nb8 Kb4 a3 Rb7 a2 Ka3 Nba6 Rb4 Bb5 Qd6 Bd7 Qb6 Rd8 e8B a1Q+ Na2 Nce6 Bf7 Nec7 Qbf6 Re8 Qd8 Kc2 Bc1 Qad4 Bb2 Kb1 Nc1 Qf2 Qh6 Qh4 Qg7 Qf6 Qg5 Qh8
NN1bR1RN/Q3b3/2n5/BBr1p1p1/q1bn4/r1N1K1q1/bbq5/k2B2NQ w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Ke6 f4 d5 h4 a5 b4 g5 b6 g3 b5 e3 c5 d3+ Kf3 d2 f5+ Ke5 f6 Kd4 c6 e5 c7 g2 h5 e2 b7 e1B f7 a4 b6 a3 h6 a2 h7 Ra3+ Bd3 Nc6 b8Q Nge7 b7 Be6 c8B Nf5 Qb3 d1B+ Be2 Qe8 Qa8 Be7 b8N Ba5 f8N Bad8 Rh3 Bc2 Bd1 Bd3 Nc3 Bc4 Rb1 a1B Bd7 Bb2 Bd2 Kd3 Ra1 d4 Qbb7 Ba2 Qb6 Bec4 Ne6 Rf8 h8N Rg8 Nge2 g1Q Nc7 Rg6 Qba7 Qe3+ Kg2 Qg3+ Kf1 Rd6 Ng1 Rd5 Rh7 Qg6 Rg7 Rc5 Rg8 Qh7 Q8b7 Qhh2 Be1 Qc2 Na8 Qa4 Nce2 Qc2 Ba5 Qa4 Nc3 Kd2+ Nge2 d3 Ng1 Nfd4 Rb1 Bc1 Rb3 Bb2 Rb6 Kc1 Rb4 Qg4 Kf2 d2 Ke3 Qg2 Bh5 d1Q Rb6 Qdf1 Bd1 Qf5 Re8 Qfc2 Rb3 Nb4 Bb5 Qg4 Qh1 Nbc6 Nce2+ Kb1 Nc3+ Ka1 Rg8 Nf3 Re8 Qg3 Rb4 Bcb3 Rf4 Be6 Rff8 Bec4 Rg8 Nfd4+
K4BBB/R2rqnNr/pNn5/k2q1B1R/b1B1rr1Q/2b3p1/1Q1r1Q2/7b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 Kd3 g5 Kc4 f3 Kd5 g3 h4 g2 b4 f4 c4 d3 e4 d2 b6 g4 e5 f2 b5 g3 e6 d6 b7 f3 c5 Ke7 h5 Qe8 h6 Kd8 b6 Qg6 c6 Qg7 h7 Nh6 Qc2 d1R+ Nd2 Bd7 Rh5 Nf7 Bc4 f1B Ne2 g1R Nd4 f2 Nf5 Rg2 Ba3 Be7 Qe4 Bf6 Qh4 Be2 Bb4 f1R Ra3 Re8 h8B Rf4 Ra4 Qf8 Ng7 Qe7 Ba3 Bc3 Bc5 Na6 Ra3 Rc8 b8Q Bf1 Qa8 Nb8 b7 Kc7 Bb4 Kb6 c7 Rcd8 c8B Ba4 Ra1 Nc6 b8Q+ Qb7 e7 Rh2 Bg4 Rd7 Bf5 Bd3 Ba3 Ka5 Bc5 Qc7 Qb2 Be2 Qab7 Bf1 Qa2 Rh1 Qbb2 Bg2+ Ke6 d5 Bd6 Red8 e8B d4 Ba3 d3 Bf8 Rdd4 Bd7 Rde4+ Kd5 Rh3 Bh7 Bf3 Bg8 Bh1 Kc5 Rh2 Bf5 Qb7 Nf3 d2 Ne5 Rd3 Nd7 Rd6 Nb6 Qe7 Qab3 Rh6+ Kd5 Rh7 Q3c2 Rc1 Ra2 d1Q+ Qd2 Qb3 Qf2 Rd1+ Qbd2 Nb8 Qfd4 Kb4 Qb2 Bd7 Ra6 Ba4 Ra5 Rc2 Ra6 Nc6 Qd2 Nd4 Qf2 Rd3 Ra5 Rcd2 Ra6 Nb5+ Kc6 Rd7 Bd5 Rd8 Nd7 Nd4+ Kb7 Nc6 Ra5 Nb8 Ka8 Nc6+ Nb8 Rd6 Bde6 R6d4 Nd7 Rd5 Nb6 Rd6 Rd5 a6 Rd3 Ka5 Rd4 Qb5 Bc4 Rg6 Rd8 Qd5 Rd7 Rd6 Ra7 Rd7
2N4b/b3BnR1/pBkq1N1B/R2b1Br1/pr2b3/1Q4r1/b6q/Q2K1NnB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 e4 Kd7 g4 c5 b4 h5 d4 f5 d6 c4 e5 c3 b5 a6 d5 h3 g5 h2 b6 c2 g6 h4 b7 f3 g7 h3 Bf4 c1B Bg2 f2+ Ke2 f1R Nc3 Nc6 b8Q Rf3 Nb5 Rh5 Bh6 f4 Na7 Bb7 Nc8 Rg3 Nf3 Be3 Nd2 Rhg5 Nf1 f3+ Ke1 Ba7 e6+ Ke8 e7 Kd7 e8N f2+ Ke2 Nd4+ Kd2 Bc6 Qbb3 Rb8 Be4 Rb4 Bf5+ Ne6 Rg1 h1Q Rc1 h2 Rc5 Qg2 Kc1 h1B Ra5 Qh2 Kd2 Be7 Qa1 Bf6 Kd1 Be4 Rg2 Ne7 g8B Bh8 Bf7 Ng8 Bh5 Qb6 Bf3 Qc7 Rg1 Qb8 Bh1 Ba8 Nd2 f1B Rg2 Bfd3 Nf1 Bb1 Rg1 Ba2 Nf6+ Kd8 d7 Kc7 d6+ Kc6 d8B Nd4 d7 Qd6 Bb6 Ne2+ Nd2 Bd5 d8B Bb7 Rg2 Ng1 Be7 Ba8 Nf1 Bb7 Bhf8 Nh6 Bg7 Nf7 Bgf8 Rh3 Rg4 Rg3 Bh6 Rh5 Rg8 Rhg5 Rg7 Be4+ Bd4 Kc7 Qc4+ Bbc6 Qb3 Bcd5 Bb6+ Kc6
1KR5/2B2B1p/nb1n1r1n/R2b1NQB/pN6/nBkq1r1B/Q2nR3/2r2q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 Kd5 d3 b4 d2 e4 f3 g4 d6 c4 f2 c5 h3 b6 h2 c6 Bf5 b5 Bg7 c7 Ra6 c8B Qd7 b7 Nh6 b6 Rf8 Bc4 f1Q Qe2 d1N Nf3 Nb2 Bb3 Nc4 Nc3 Na3 Na2 a4 Nb4 Qd8 Nh4 Nd7 Kc6 Ke5 b8Q Kd4 Kb7 d5 g5 Kc3 e5 d4 e6 d3 g6 d2 e7 d1N e8B Nf2 Qf4 Nc5+ Kb8 Qd3 b7 Be4 Qg5 f5 Ra2 f4 Bh3 f3 Nf5 Bd4 g7 Raf6 g8B Bd5 Bf7 Nfe4 Bf4 f2 Bc7 Nd6 Qe6 Be3 Re2 Bd4 Rg1 h1R Bh5 Qa1 Rg2 f1N Re5 Nd2 Rge2 Rc1 Qf7 Ne6 Qfg8 Bb6 Qf7 Bc4 Ra5 Nc5 Qd5 Nc8 Qdg2 Bd5 Bef7 Nd6+ Re8 N2e4 Qa2 Nd2 Rc8 Qab1 Re8 Qf1 Rc8 Qbd3 Re8 Nc8 Re2 Nd6+ Be8 Rb1 Ka8 Bc4 b8R Re6 Rc8 Bd5+ Kb8 Rc1 Ng3 Rf3 Nf5 Rf6 Bef7 Na6+
1N4q1/n1N1Q1p1/bb1B4/n1r1rQ1N/1RQ1q1qN/K1b3pB/2k3N1/1q3R1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 h4 a5 b6 f5 b7 d5 c5 d3 c6 g3 c7 d2 h5 f3 h6 f2 h7 d4 Qe1 f4 Bh3 f1Q Ra4 f3 Nc3+ Ke3 Ne4 d3 Rb4 a4+ Ka3 f2 Nf6 Nc6 b8Q Na5 Qb5 Ne7 Qc4 Ba6 c8Q Qg2 Nh5 f1Q Qf5 Nc8 Nf3 Bc5 Nh4 Re8 h8N Bb6 N8g6 Qe4 Ngf4 Na7 b3 Qfg2 Rf1 Rc8 Bb2 d1Q Be5 d2 Bd6 Qf2 Qc1 Rc4 Nfg2+ Kd4 Qc2 Qff4 Qc1 Qb1 e4 Kd3 e5+ Qe4 e6 Qg4 e7 d1Q Qcf4 Rc5 Qc1 Rh8 e8N Qb8 Qcf4 Kc2 Nc7 Re8 Qee3 Ree5 Qe2+ Kc3 Q4g5 Qg8 Qe7 Qdd4 Qc4+ Kd2 Rb5 Qg1 b4 Qh1 Na8 Bc7 Rb8 Bb6 b5 Bc7 b6 Bd8 b7 Bb6 Qb4+ Kc2 Nc7 Nb3 Qh7 Na5 Rbf8 Qef5 b8N Qfg6 R8f3 Q6e4 Rb3 Qbd1 Qd4 Qb1 Kb4 a3 Qf5 a2 Ka3 a1B Qc4+ Bc3 Rb5 Qh7 Rb4 Qg8
1Bk1B1B1/4p1r1/2q3B1/r4br1/n1qR3p/2rB1RR1/N1b1N2b/1nrQ1K1Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Qd2 h3 g4 h5 f4 d5 a4 Kd7 c4 b5 a5 h4 f6 b3 g5 b2 f5 b4 g6 b3 a6 h2 c5 d3 g7 d4 a7 Rh7 f7 Na6 f6 Qc7 Qg2 d2+ Ke2 d1R Qb7 Rd3 Nc3 b1B Ra3 b2 Bf4 Bc2 Na2 b1R c6+ Kd8 Bg3 Rb5 Rb3 Qf4 c7+ Kd7 Qg2 Nc5 Qe4 Na4 Rb4 Nh6 g8B Bg7 f8Q Ng4 f7 Be5 Qg7 Rb3 f8R d3+ Ke1 Bd6 Qa1 d2+ Ke2 Qf7 Rd4 Nf6 Kf2 d1R Bd3 Rg5 Ne2 Qc4 Rg1 h1Q Rg2 Rab8 a8B Rc3 Bad5 Rb7 Bdf7 Rbb5 Bg6 Ra5 Qc1 Rg7 Rf7 Bb7 c8B+ Kd8 Qd2 Rc1 Bd7 Bc8 Be8 Bg4 Bh2 Kc8 Qd1 Bc7 Qd5 Bh3 Rg1 Ne4+ Ke1 Bd7 Kf1 Be6 Rf4 Bf5 Rf2 Rb3 Qc6 Nec3 Qd5 Qe4 Rg4 Qe6 Qh1 Nb1 Rf3 Qec6 Bd6 Rc3 Bf4 Bd8 Bb8 Bc7 Rg1 Bh2 Rg2 Rb3 Rgg3 Rc3
B2N4/q1p1r1n1/K1Qr1r2/1BN1rk1r/2b4R/2N2q1R/3p1bq1/nNQNB3 w - - 0 1 illegal: No proof kernel
2r1rN1K/k7/1r1q4/BR1n1n1Q/Qb2Br1n/p2bQQR1/pN4q1/Q1N2q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 a5 d4 f3 g4 h3 b4 c4 e4 f6 Kg6 Kc7 d6+ Kb6 d7 c3 e5 c2 g5 a3 d5 f5 d6 f4 e6 h2 b5 a2 e7 f2 e8Q h4 Na3 f3 Bd2 c1N Bd3 f1Q Rb1 a4 Be4 f2 Qf3 h3 Ne2 Ba6 Nc4+ Ka7 Nb2 a3 Rg1 h1Q Ba5 h2 Rg3 Nd3 Nc1 Nc6 b6+ Kb8 b7 Ka7 b8N Qb6 d8Q Nd4 Qdf6 Qhg2 d7 h1R d8Q Ne1 Qd5 Bb4 Kg7 Ne7 g6 Qd6 Nd7 Bd3 Nf8 Rc8 Qdh5 Nd5 Qa4 Rg8+ Kh7 Nf5 g7 Rh4 Qe5 Rf4 Qc3 Nh4 Qd2 Nc2 Qde3+ Nd4 Nd1 Bd2 Rb5 Bb4 Nb2 Rf6 Nd7 Rge8 g8Q Rfe6 Kh8 Rf6 Nf8 Rfe6 Qee2 Ndf5 Qgg4 Qd8 Qfe3+ Rb6 Qed1 Qd6 Qgf4 Qe1 Qff3 f1R Qdc2 Rf2 Qb1 Qd1 Qa1 Qdf1 Qfd1 Rf4 Qde2 Kb8 Q2f3 Ka7
3RqNQ1/b1k1n3/2brn3/1Rn1r1b1/3p1R1R/q3NR1N/Bp2KQ1B/1r5r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 h5 g4 b5 a4 e5 f4 d5 f6 Kd7 c5 b3 f7 d3 g5 d4 c6+ Kc7 f5 d2+ Kf2 h3 a5 h2 a6 b2 g6 b4 a7 b3 g7 h4 f6 h3 Qg4 d1N+ Ke2 e4 Nc3 b1R Ba3 b2 Ke1 e3 Qh5 e2 Qf5 Nd7 Qf2 Ne7 g8Q Ne3+ Nd1 Rh5 Ra2 Rb8 a8R N3d5 Ra5 Nc5 Rb5 Re5 Ra1 Bh6 f8N Bg5 f7 Nf4 Kd2 Bd7 Ne3 Nfe6 Bb4 e1B+ Ke2 Nb3 Ra3 Nbc5 Bg2 Bd2 Bd5 Qe8 Ba2 Rb6 Ba5 Bb4 Rc3 Kd6 c7 Bc6 c8R Ba3 Rd8+ Kc7 Nh7 Bb4 f8R Ba3 Rf4 Bb4 Nf8 Ba3 Nf3 Bb4 Re1 h1R Ng1 h2 Rb3 Ba3 Bd2 Bb4 Nh3 Ba5 Ra3 Ra6 Rg1 Bb6 Rgg4 Ba7 Bb4 Bb7 Be1 Rd6 Rh4 Bd5 Qf1 Bc6 Bg3 Rg1 Rab3 h1Q Qf2 Qd5 Rc3 Qb3 Bh2 Qa3 Rcb3 Be4 Nf5 Rgd1 Rbf3 Bc6+ Ne3 Rh1
3B1k2/3Rqn2/R1Bn4/R1q1B2r/1p3b1p/nQ1Qr1Nq/K5n1/N2bb1BB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 b5 g4 c5 d4 f5 Kd2 h5 Kc2 h3 Kb2 c4 e4 f3 d6 f4 g5 b3 a5 f2 g6 h2 a6 h4 d5 f3 a7 Nd7 e5 Nc5 g7 Nb7 e6 Qe7 Bf4 Rh5 Be5 Nh6 g8Q Nf7 Bg2 f1N Ne2 f2 Nd2 Ne3 Ng3 f1Q Ra5 c3+ Ka1 b2+ Ka2 b1N Nb3 c2 Qd3 c1B Na1 Rb8 a8R Qg1 R8a6 Na3 Be4 Ng2 d7+ Kd8 Bf3 Qgc5 Rd1 h1Q Rd2 Qh3 Rd1 Ne1 Bh1 Bf4 Rd2 Nbd6 Rd1 Qe8 Rd2 Ng2 e7+ Kc7 d8B+ Kd7 Rd1 b4 Rd2 Bg7 Bb6 Qd8 e8B+ Ke7 Bb5 Bg4 Bc6 Bd1 Ba7 Qb5 Bg1 Qc5 Qb3 Qc7 Qh7 Kf8 Qhb1 Qe7 Q1d3 Ne4 d6 Re8 d7 Ned6 d8B Bgh6 Rf2 Bd2 Rf4 Be1 Rd4 Bf4 Rd5 Ndc4 Rd7 Ncd6 Bb2 Qf6 Bbd4 Re3 Be5 Qe7
qn4rQ/qb1K3Q/Q3rb1b/B1Q1RQ2/p1B2pnn/6Rn/R1N4r/1k1N4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 d2 h5 g3 e3 f3 b6 a4 b7 f2 b5 g2 h6 g4 b6 g3 c5 Ne7+ Kd6 Ke4 c6 f5 c7 f4 h7 Nbc6 b8Q Bb7 c8Q Bh6 Ne2 Kd3 e4 g1N e5 g2 e6 Nh3 Qa7 g1B Nbc3 Ng6 e7 Nh4 e8R Rb8 Qe1 Kc2 Re5 d1N Qa6 Ne3 Bd2 Ng4 Nd1 Qe8 Ra3 Kb1 Nd4 Qf7 Qc7 Rbg8 Bc4 f1Q Qe3 Qg2 Nc2 Qf3 Qc5 Bd4 Rhe1 Qg7 R5e3 Bf6 Ba5 Qf7 Qc8 Qg2 Kc7 d5+ Kd6 d4 Q8f5 d3 Rg3 d2 Ra2 Qc7+ Ke6 Qb8 Re5 Qa7 Kd6 Re8 Kc7 Rhg8 h8Q Re6 Kd7 Qh1 Qhh7 Qg2 Nf2 d1R+ Rd3 Rc1 Rg3 Rh1 Nd1 Ba8+ b7 Rh2 Bc7 Qf3 b8Q+ Bb7 Qbf8 Qg2 Qfg7 Qf3 Qgh8 Qd5+ Qd6 Qa5 Qc5 Qa8 Bd8 Qb6 Bc7 Qba7 Ba5 Nb8+
1N1R2N1/1nB4N/q6R/1qb2bqp/1q1R2n1/kN2Q1Q1/1rpK2N1/1B1n2br w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Kd6 g4 a5 d4 c5 g5 f5 b6 c3 b5 h3 b7 f3 g6 c4 g7 c2 d5 Kc5 b6 Kb4 e5 a4 d6 f2+ Kd2 h2 e6 c3+ Ke2 f4 d7 a3 e7 f3+ Ke3 a2 e8N Nc6 b8Q Qe7+ Qe5 Rb8 d8R Nf6 g8N Bf5 b7 Ng4+ Kf4 Na5 Bb5 f1Q Nd2 f2 Nh3 h6 Bb2 c1Q Qde2 c2 Q2e3 Qh4 Bc4 Bc5 Nb3 Qg5+ Kf3 Qd2 Rd1 a1B Nef6 Qd4 Bc3+ Ka3 Nh7 Qfd3 Be6 Qa6 Nf4 Qb4 Ng2 f1N Be1 Bad4 Qg3 Qbb5 Rd3 Qb4 Ke2 Qbb5 Qg1 Nfe3 Kd2 Nd1+ Q1e3 h5 Rf1 h1Q Bf7 Ra8 b8N Qhh4 Bc4 Nb7 Bf7 Bc8 Rf6 Bf5 Rh6 Ra7 Bf2 Ra8 Bg1 Ra7 Bh2 Ra8 Qef4 Bg1 R3d4 Ra7 Ngf6 Re8 Ng8 Re1 Qfe3 Ra8 Nc6 Rc8 Nb8 Rc6 Qf3 Rb6 Bc7 Bh2 Bc4 Rh1 Qg3 Bg1 Nc1+ Ka4 Bb3+ Ka3 Ba2+ Qb3 Bb1 Qbd3+ Ke1 Rb2 Nb3 Qdb5 Kd2 Qe7 Ba5 Qhg5 Bc7 Qe4 R4d6 Qea4 Rd4 Qab4+
rN6/1NkB3b/nq1n1BbB/2b1q1Qp/p1r4R/Q5RK/2n1BB2/2r2n1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 Kd7 c4 h5 g4 a5 Kg2 f5 e4 d3 c5 f3+ Kh3 a4 e5 d4 b6 d2 b7 f4 e6+ Kc7 e7 d3 e8B f2 b5 f3 c6 Qd7 b6+ Kd8 c7+ Ke7 Ne2 Kd6 Na3 Qd8 Bd7 Qf6 g5 Rh7 g6 Qe5 g7 Na6 b8B Nh6 g8Q Nf7 Qb3 d1R b7 d2 Ba7 Re1 b8B d1N Bb6 Ne3 Ng3 Nc2 Be2 f1N Bh6 f2 Qg5 Rc1 B8a7 Bb7 Bd4 Be4 c8N+ Kc7 Nc4 Bc5 Qa3 Bg6 N8b6 Nd6 Na5 Rf7 Bc3 Rf4 Nb7 Rc4 Rg1 Bh7 Nh1 Bg6 Rg3 Bh7 Kg2 Bg6 Rb1 Bh7 Rb4 h3+ Kf3 h2 Kg2 Qe3 Bf6 Qe5 Kh3 Bg6 Rg4 Bh7 Rb3 Bg6 Rh4 Bh7 Ng3 h1B Rd3 Bd5 Nh1 Bf7 Rg3 Be8 Be6 Beg6 Nd7 Nh2 Nb8 f1Q+ Rg2 Qg1 Rg3 Nf1 Bd7 Bb4 Bf2 Bc5 Be1 Qge3 Bf2 Qb3 Bf8 Qb5 Bh6 Qb6
2BB3B/q4k2/3R4/R3Qrpb/1Q1r2nn/1n1N2R1/1rR1KpRb/1qq3rN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 a5 c4 f5 b4 d5 e4 g3 e5 g6 e6 g2 e7 a4 c5 f3 h5 f4 h6 a3 b6 a2 b5 f2+ Ke2 Ra4 h7 Nh6 c6 Qc7 b7 Kf7 e8R Ng4 b6 Bd6 Re3 Nd7 b8R Nde5 b7 Nf3 Rh6 Nh4 Nf3 g1R Bh3 f1R Ne1 g5 Nd2 Bf5 Ne4 Bg6 Ng3 Bh5 Bd2 Qe7 Ra8 Rb8 h8B Rb4 Rc1 a1N c7 Nb3 c8R Be5 R1c2 f3+ Kd3 Bc7 Nh1 Bh2 Qe2 Qc5 Rb2 Qa7 Rd6 Ra4 Ba5 Rf2 Kc2 d3+ Kd1 d2 Rcc2 d4 Rec3 Rf8 Qe5 Re2 b8Q f2 Rg3 Rb4 Rb1 Re4 Qbb5 Rf4 Bc7 Rd8 Qa5 Rf5 Ke2 Rdb8 Bd8 Ra4 Kd3 d1Q+ Qd2 Qc1 Ke2 Rbb4 Nd3 Ra2 Ra1 Rb2 Ra5 Rc4 Rg2 Rb4 Rac8 Qb1 R8c3 Rc4 Nc1 Ra4 Qe1 Rb4 Rcg3 d3+ Kd1 d2 Ke2 Ra4 Nd3 Rd4 Qc1 Ra2 Qa3 Rb2 Qb4 Nf6+ Ke3 d1Q Bg4 Qdc1+ Ke2 Rf3 Bf5 Ng4 Bc8 Rf5
k4nR1/q4n1b/N2q4/B3Rrp1/1Q3bB1/1pR1R2r/2Q1rr1N/1KbBnR2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 f5 Kc2 g5 e4 b5 h4 c5 a4 Kc7 d6+ Kb7 h5 c4 a5 g3 d5 f3 a6+ Ka7 d7 f4 d6 c3 h6 f2 e5 g2 e6 f3 e7 Bb7 e8R Qe7 d8R Nd7 h7 Nh6 Be2 f1R Na3 b3+ Kb1 b2 Rh3 f2 Rc8 b4 Re3 Be4+ Qc2 Nf7 Nf3 g1N Nh2 Nf3 Bd1 Ne1 Bd2 Bg7 Rc6 Nf8 d7 Be5 d8Q Qd6 Qa5 Bf4 Re5 Re8 Nb5+ Ka8 a7 Bd3 Nd4 Be4 Ne6 Bf5 Nc5 Re6 Qe4 Re7 Na6 c2+ Ka2 c1B Qc2 b1R Rcc3 Rb3 Rb1 Rb2+ Ka1 b3 Qb4 Rh1 Bg4 f1Q Bd1 Rg8 h8R Qg1 Bg4 Rg6 Rg8 Rf6 Bd1 Bh7 Bg4 Rf5 Bd1 Qb6 Bg4 Kb7 a8B+ Ka7 Bd5 Qd6 Bdf3 Re6 Bd1 Ka8 Red3 Qa7 Rde3 Rf1 Bge2 Rf2 Bg4 Nd3 Be1 Rh6 Bd2 Rh3 Be1 Bd2 Rc1 Ra2+ Kb1 Nd8 Qc5 Qf6 Bde2 Rh4 Qd1 Qc6 R3c2 Rh3 Bef3 Bb4 Qb5 Be7 Ba5 Nf7 Rc3 Ba3 Qb4 Rac2 Be2 Qd6 Qd2 Ra2 Rf1 Ne1 Bd1 Bc1 Qd3 Rad2 Qc2 Rde2
qQQ1QB1q/1b2n3/7Q/2pr2n1/b2pRr1R/N3brr1/2BK3Q/qR2Nk2 w - - 0 1 illegal: No proof kernel
1KB2nkb/b2R4/2RB2q1/pqq2nrr/r6Q/3NpBRN/3Rb1b1/Q5R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 d5 b4 h5 c4 a5 f4 e5 g5 e3 Kf3 e2 f5 e1B c5 e4+ Kf4 h3 Ke5 e3 g6+ Kg7 b6 d3 b5 d4 c6 h2 b7 h4 c7 h3 b6 d2 Ba3 d3 Bg2 Bb4 Nc3 Rh5 Nce2 Ne7 Bf3 Qg8 Rc1 Bc5 Nf4 Kh8 Qa4 d1R g7+ Kh7 Qc4 d2 Nd3 Qf8 g8R Nd7+ Ke6 Bg3 b8R Be5 b7 Bh8 f6 Nf5 f7 Bb6 Qb4 Qc5 f8Q Re1 Qg4 d1Q Qf6 Qa4 Qgh4 Qab5 Rg3 Ra6 Rc2 Ra1 Rd2 Ra2 Bb4 Ra4 Qa1 Ra7 Ra8 Ra6 b8R Nf8+ Kf7 Bb7 Rc8 Ra7 Rd8 Ba6 Rd7 Rb7 c8B Rc7 Ne5 Rc6 Ba3 Rg6 Ke8+ Kg8 Nd3 Rgg5 Ra7 Qd6 Rc7 Qg6+ Kd8 Qc5 Ne2 Qb5 Rb1 h1B Nef4 h2 Rbg1 Bg2 Nh3 h1Q Bd6 Qh2 Rg4 Qhe5 Rg3 Ba7 Rc6 Qec5 Kc7 Bb6+ Kb8 Qbb4 Ne5 Be2 Nd3 Qcb5 Ra7 Q4c5 Rd7 Ba7+
N1N1Q3/r1b5/4Q2N/pq1p1bbN/1N3Rn1/k1B1Q1K1/rRB2bn1/1qq3r1 w - - 0 1 illegal: No possible last move, all moves rejected
2R3qQ/6RK/rNn4p/B2R3Q/1BNrn2n/bB1kq3/1qprb3/1n1B3B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 a5 b4+ Kb6 d4 c5 d5 h6 d6 f3 d7 c3 Kf5 c4 e4 h3 g5 h2 e5 c2 g6 f2 g7 a4 e6 a3 e7 a2 e8B c3 Ne2 Ba6 Ba3 c1Q Nf4 c2 Be2 f1N Rg1 h1N Nd2 Nf6 g8B Ne4 Rg7 Nc6 Rb1 f6 Kg6 a1Q Bb3 f5 Bef7 Qe5 Bfd5 Qcb2 Bg4 Rg8 Kh7 Nhg3 Qe2 Qec3 Rd1 Qe3 Qh2 Qe8 Qh5 Qf7 d8R Be7 Rc8 Rd8 Bf3 Bf8 Bh1 Ra7 Bdc4 Rd4 Be2 Be7 Nf3 Qd5 Ne5 Nfd2 Bef3 Nb1 Nc4+ Kb7 b6 Qg8+ Kg6 Bb5 Nd5 Ka6 b7 f4 b8Q Nf5 Ndb6 Bd6 Bg4 f3 Rd3 f2 Bd1 f1R Rd2 Qf7+ Kh7 Rf2 Rd3 Bf8 Qe5 Rh2 Qe8 Bc5 Qh8 Nh4 Rd2 Rd8 Rd5 Rd2 Na5 Be2 Nac4 Kb7 b5 Ra6 Bb4 Rd7 Rf5 R7d4 Rd5 Bf8 Nd7 Qe6 b6 Bd6 Ba5 Ba3 Bb4 Ra7 Ba5 Ka6 b7 Qe8 b8B Qf8 Nc5+ Kb5 Bd6 Ra6 Na4+ Nc5 Bac7 Kb4 Nab6 Kc3 Be7 Ne4 Bb4+ Kd3 Na4 Qa1 Bca5 Qb2 Nab6 Qg8+
2n2q2/N1Bn1n1r/k1bq1pnb/8/pR1N4/R4rR1/1Q1R3Q/r1QBK1bR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 d5 h4 Kd7 b4 Kc7 c4 Kb7 c5 g5 e5 a5 b6 f6 h5 f3 b5 d3 h6 d4 h7 d2+ Kf2 d3 e6 Ne7 Qe2 d1N+ Ke1 g3 Na3 g2 Bf4 g4 Bc7 g3 Qb2 Bh6 Ne2 g1B Nd4 g2 Be2 Ng6 e7 Bd7 e8R Ne3 Rg8 Qf8 Bd1 Nd5 Ra2 Nde7 c6+ Kc8 Rg7 Be8 Qc1 Nd7 Rd2 Ra6 Bb8 Ra7 c7 Kb7 c8R a4 Rc3 Nc8 Bc7 Rg8 Re7 Rg7 h8Q Rh7 Rb2 Ra5 Re3 f2+ Kd2 f1N+ Ke1 Ng3 Rd2 Nf5 Rg3 Nfd6 Rb3 Ka8 b7+ Ka7 b8R Nf7 b6+ Ka6 b7 Rf5 Nab5 Rf3 Ra3 Bh2 Rf1 g1R Na7 Rh1 Ra8 Bg1 b8Q Nc5 Qbb1 Bc6 Rb8 Nd7 Qa2 Rh5 Qaa1 Rc5 Qcb2 Rc1 Rb4 Rb1 Qc2 Rc1 Qab2 Ra1 Qcc1 Bh2 Rh1 Bg1 Rc2 d2+ Ke2 Bge3 Nb3 Rg7 Qh7 Bhf4 Qh2 Bf2 Kf1 Rh7 Be2+ Rd3 Bf3 Bh6 Bh5 Bd4 Bg4 Re3 Kf2 d1Q Bf3 Qd3 Bd1 Bc5 Rd2 Qdd6 Kf1 Rf3+ Ke1 Bce3 Nd4 Bg1
1qQ2rr1/1Q3R1K/1N2p2N/3rQB2/b3q3/1BQb1kn1/qr2pn2/1Rb1BQ2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 a5 g5 a4 f6 a3 f7 d3 Ke3 d2 Kf4 a2 Kf5 h3 Kg6 h2 b6 e3 c4+ Ke4 b5 d5 c5 d4 b7 h4 c6 h3 c7 d3 b6 e2 Qb3 d1B Qc3 d2 Na3 Nd7 b8Q Ba6 c8Q Ngf6 b7 Nh5 Nc4 Ng3 Rb1 a1Q Nb6 Bd3 Nf3 Rg8+ Kh7 Ne5 g6 Ng4 g7 Nf2 Nd4 Ba4 Nf5 d1R Qbe5+ Kf3 b8Q Qa2 Bd2 Qe8 Rg1 h1Q Be1 h2 Bh3 Rd2 Qbc7 Rb2 Rf1 Qg2 Qa7 h1R Qad7 Ra5 Qa7 Rd5 Qab7 Ne4 Nh6 Ng3+ Bf5 Rh4 Qce6 Qb8 Qec8 Rf4 Kg6 Rh8 g8B Bg7 f8Q Qh1 Be6 Rg8 Bf7 Bf6+ Kh7 Bg5 B5g6 Rf6 Bf5 Bc1 Be6 Qh4 Qf7 Qe4 Qff8 Rd4 Bb3 e6 Rg1 Nf1 Rg7 Rd5 Rf7 Ng3 Qg7 Nf1 Qg1 Ng3 Qf1 Nh5 Re7 Rff8 Rf7 Ng3
n1r1KR2/1Bq2N2/RpR1bNn1/1q3N2/Rrp1nb1r/1r2B1QR/5Q2/q2k4 w - - 0 1 illegal: No possible last move, all moves rejected
N1bR2q1/3Q1Qp1/2N2Nr1/1R2q3/B2qnk1N/prB1N1q1/1r1RK3/2b3nn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 b6 d5 b5 f5 b7 d3 c5 d2+ Ke2 a4 h5 f3+ Kf2 d4 h6 f4 b6 d3 c6 Ne7 c7 Nd7 b8R Nf6 h7 Nf5 b7 Ra6 Nc3 Ng3 Rb1 Ba3 Bb2 Qg8 Rh2 Rc6 Qb3 d1Q Qf7 d2 Bb5 Qb3 Nd5+ Qc3 Ra8 d1Q b8N Qdd4+ Ne3 Nh1+ Kf1 f2 Ke2 Qcc5 Bc3 f1R Rb2 g3 Nf3+ Kd6 Rh5 g2 Rd2 Bc1 Nh4 a3 Ba4 Rf3 Re5 Rb6 Nc6 Rb2 Rf5 Qa5 Rb5 Rg3 Rab8 Rg6 Ra8 Bd7 Rd8 g1N+ Ke1 f3 c8N+ Kc7 e5 f2+ Kf1 Ne4 e6 Rb3 Nb6 Kd6 e7 Rb2 Rb3 Qe5 Rb5 Rb3 Na8 Qg3 Qe8 Ke6 Qf8 Bc8 Qe8 Qge5 Qd7+ Kf6 e8N+ Kg5 Nf6 Kf4 Qf7 Nh3 Ke2 Ng1+ Kd1 f1Q+ Kc2 Qf2 Kd1 Qf8 Qd7 Rg8 h8Q Qg3 Qh7 Rh8 Qg8 Qfe8 Qgf7 Qg8 Nhf5 Rh2 Nh4 Re2 Rd3 Reb2 Rd2 Nf3 Ke2 Ng1+
r2b1BbR/5p2/r2qn1Q1/N1nRpn2/2K1B3/1r1N2B1/3Nqb1Q/N2kN2r w - - 0 1 illegal: No proof kernel
n3krB1/Bqqqp2B/nR4rn/B2R1N2/1N1bBp2/3q3R/1Q4rQ/1K3b2 w - - 0 1 illegal: No proof kernel
R1NN2rB/1Nqkp1Rr/p4bnR/8/N1Q1n1bb/3q1Q1b/1q2Br2/2K3N1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 c4 h5 g4 d3 f4 d4 b4 a6 f5 h3 c5 h2 f6 h4 f7+ Kd7 b6 h3 b7 Nf6 g5 Kc6 b5+ Kd7 g6 Bg7 f8R Nc6 b6 Ne5 Be2 Qc7 Nc3 Rg8 Bb2 e3+ Kc1 Ne4 Na4 Bf6 g7 Ng6 Re8 Rf8 g8Q Rb8 Qc4 d2+ Kb1 d3 c6+ Kd6 Qdb3 d1B Kc1 Ra8 b8N d2+ Kb1 Bg4 Nd7 Rf7 Rh8 Rg8 b7 Be6 b8N Bf5 Bh5 e2 Qf3 e1B Ndc5 Beh4 Bd4 Be2 Kb2 d1Q Ra2 Qd8 c7 Qd3 Nc6 Qb8+ Nb7+ Kd7 c8N Qc7 Ra1 Bg4 Kc1 Bf1 Ncd8 Bg2 Ne2 Rh7 Rg1 h1R Rb1 h2 Rb6 B2h3 Bc3 Be1 Rg3 Rf1 Ng1 h1Q Bb2 Bfc3 Rf6 Qg2 Rf8 Rf7 Rh6 Bf6 Be5 Rh7 Bd4 Bh4 Bh8 Rf2 Re8 Bc3 Rf8 Be6 Rg4 Bcf6 Rg5 Nf4 Rg7 Ng6 Ncd6 Qg5+ Qe3 Bf7 Nc6 Qe5 Be2 Nf4 Qf3 Bh5 Ra8 B5g4 Nc8 Ng6 Ncd8 Qb2+
r2B1b1n/1Npr2R1/1r3Q2/2pRrNN1/B1q5/1b1N1N1b/Q1qQ4/1K3nnk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 c4 exf4 c5 d6 Ra6 dxc5 Ra5 Qd5 Ra1 Qd8 d4 Kd7 Kd2 Kd6 Kc2 Kd5 g4 Ke4 b4 f5 b6 a5 g5 h5 b7 a4 b5 h3 g6 h4 g7 f3 b6 f4 d5 a3 d6 f2 d7 h2 Nh3 a2 Qd2 f3 Rg1 Ne7 g8Q h1B Rg7 Nbc6 b8N Ne5 b7 Rh5 Na6 N7g6 b8Q Nh8 Nb4 Qf6 d8N Rh7 Bg2 f1N Nd3 Ra6 e3 Rb6 Nb7 Be6 Qd8 Bb3+ Kb2 Rh5 Rh7 Qg7 Qf6 Qg3 Rg7 Qe1 Nhf4 h3 Ne6 h2 Bh3 f2 Bf5+ Kf3 e4 Nd7 e5 Bg2 Ng5+ Kg3 e6 h1R e7 Kh2 e8N Ne5 Qge6 Nf3 Ned6 Ng1 Bg4 Bh3 Nf5 Rh7 Bh5 Kg2 Be8 Rh2 Ba4 Kh1 Qde3 Qb4 Nd2 Qc4 Rb1 a1R Ndf3 Ra3 Ra1 Qc3+ Kb1 Rg2 Qd2 Rg3 Nfe5 Re3 Nef3 Re5 Bb2 Rh4 Ra2 Rd4 Ba1 Rd7 Rb2 Bd1 Qa2 Bb3 Rc2 Nh2 Rc1 f1Q Rd1 Qe2 Nc1 Qec4 Nd3 Q3b4 Bd4 Nf1 Be3 Qbc3 Bf4 Re4 Bd6 Re5 Be7 Qa5 Bd8 Qac3 Bc6 Ra8 Ba4 Re2 Re1 Re8 Re5 Ree7 Rd5 Re1+ Nc1 Re5 Nd3 Qc2+
RB1KQb1B/1q2Q1B1/5Np1/1B1Qp1b1/1Bbbb3/1rrRn3/n5bN/k5r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Ke6 h4 Kd5 b4 Kc4 c3 a5 f5 e5 b6 d5 b7 g6 f6 d3+ Ke3 g3 f7 g2 h5 a4 b5 d4+ Kd2 a3 h6 a2 b6 Nf6 h7 Qe7 Nf3 g1R Nh2 Na6 b8B Bf5 b7 Ng4 Ba3 Ne3 Bb4 Rg8 Qf3 Kb3 h8B Kb2 c4 Bh3 c5 Bg2 Bd6 Rc8 b8B Qb7 Nc3 Rc6 Rd1 a1B Nd5 Rc7 c6 Ka2 Bc3 Nb4 Nf6 Rc8 c7 Rg7 Ke1 d2+ Kf2 d3 Kg3 Rg8 Kh4 Bb2 Rb1 d1B Kg5 d2 Bb5 Bb3 Rd1 Bc4 Bc5 Bc1 Be7 Kb1 Bd6 Na2 Bcb4 Ka1 Bdc5 Rd8 c8Q Rd3 Qe8 Rb3 Be7 Rg7 Bed6 Rh7 Be7 Rh3 Bed6 Bg7 f8Q Rc3 Qfe7 Bf8 Qf1 Rf3 Qd3 Rb3 Qd5 Rc3 Re1 d1B Rf1 Bdb3 Rd1 Bc2 Rd3 Rb3 Nh7 Rg3+ Kf6 Bb2 Ke6 Bd4 Nf6 Kb1 Nh5 Rf1 Rc3 Ng4 Rg1 e3 Bdc5 e2 Ba5 e1B Q7f7 Bce4 Nf6 Bd6 Bab4 Nc1 Qc7 Rgf3 Kd7 Bd2 Kd8 Bg5 Qcd7 Rd3 Rh1 Ne3 Qh7 Rd2 Rd3 Rc2 Qc7 Rcc3 Rg1 Bf8 Be7 Bg7 Bf8 B7h6 Qce7 Re1 Rf1 Kb2 Rf2+ Ka1 Re2 Rg1 Ra2+ Kb1 Ra8 Na2 Bc5 Bg7 Bb4 Ka1 Nh5 B7f6 Bh6 Bg7 Nf6 Bf8 B6g7 Qc6 Ng8 Qa6 Nf6 Qb7
N2B2nr/q2Kp3/1RN1QRB1/1B1Q1b2/rr2Q3/knB3b1/p2r2r1/1nr3B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 b4 d5 c4 Kd7 f4 Kd6 g5 a4 b6 a3 c5+ Kc6 g6 d3 Kc3 Kb5 Kd4 a2 Ke5 e3 c6 h3 b7 d4 f5 e2 g7 e1R+ Ne2 d2 f6 h2 c7 h4 f7 h3 Bb2 d3 Nc3+ Kc4 b5 Kb4 b6 Ra3 Na4 Nf6 g8Q Nh7 Rb1 Bh6 f8Q Na6 b8B Nf6 b7 Qd7 Nb6 Nc5 Na8 Ra4 Bc3+ Ka3 Ba7 Nb3 Qe6 Ng8 b8B Bf4+ Kf5 Bg3 Bg1 Rb4 Nd4 Re2 Nc6 Rg2 Bba7 Qd4 Bb6 Rh4 Qf3 d1N Qe4 d2 Qf7 Ra4 Bba5 Qa7 Bb5 Bd7 c8B Rh8 Be5 Nc3 Bd8 d1R Rb2 Nb1 Bc3 Rb4 Bca6 Rc1 Bd3 Rcc2 Bab5 Rcd2 Qh5 Ra4 Qhf3 Rh4 Qd5 Rhf4+ Ke5 Bc8 Bg6 Rfb4+ Kf5 Bd7 Qfe4 Bc8 Bc5 Bd7 Rf1 h1R Rf4 Rc1 Bg1 h2 Ke5 Bf2 Rf6 h1R Q6g4 Be8 Ke6 Rh8 Qh3 Bg3 Qhf5 Qe3 Qfe5 Bf7+ Kd7 Qf2 Qe6 Qb6 Bh7 Bh5 Bf5 Bg4 Bg6 Qa7+ Bc7 Na5 Bd3 Rd4 Rb6 Rdb4 Bf1 Bf5 Bb5 Qa6 Bd8 Nb3 Qe2 Qa5 Qe4 Qa7+
n6b/2q1n1Bb/n2Kn3/r1Q1Q1B1/qR1n2p1/1nB2BB1/2R1pNRr/5k1N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kg6 c4 Kf5 b4 Kf4 h5 e5 f3 Kg3 h6 Kf2 h7 a5 f4 d5 f5 g5 b6 d3 Kc3 a4 f6 d4+ Kb2 d2 Ka3 g3 f7 g2 c5 e3 c6 e4 b7 e2 c7 e1N Bb5 e3 Bc6 g4 Qc2 d3 Rh2 e2 Nc3 d1N Rb1 d2 Ne4+ Kf1 Nh3 g1N Nef2 Ngf3 Rg2 Nd3 Qc5 Bf5 c8R Nf4 b5 Qc7 Kb4 a3 b6 a2 Nh1 a1N N3f2 Nd4 Bf3 Bg7 f8B Nab3 Rb2 Bf6 Bg7 Ne7 Kc4 Na6 b8B Bg6 b7 Nc3 Rc2 d1Q Be3 Nd3 Bg5 Na4 Rd8 Be4 Rd6 Bf5 Rb6 Nf4 Rb5 Nfe6 Rb4 Rc8 h8B Bh7 Ba7 Be5 b8Q Rd8 Qb5 Rd6 Bb8 Nb6+ Kc3 Ra7 Qe8 Na8 Kc4 Nf8 Qh5 Rh6 Qh2 Nfe6 Qf4 Nef5 Kd5 Rh2 Qg3 Bf6 Qe5 Qa1 Rc3 Qa4 Rc2 Qc8 Bc7 Ne7+ Kd6 Nb8 B7h6 Ra5 B8g7 Na6 Bd2 Rh4 Bc3 Rh2 Bf4 Qb8 Bg3 Qb7 Bd8 Qa7 Bh6 Bh8 Bg7 Nec6 Bdh4 Ne7 Bg5 Qc7+
1N1Rn3/N3K2N/2BbN1rQ/q2R1b2/1r1p1n2/1pk2rBQ/2rb1R1b/2r2N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 b5 h4 g5 a4 b3 f4 g3 c4 g4 h5 b2 h6 d6 c5 b4 c6 b3 h7 d3 c7 d2 a5 g2 a6 e4 a7 e3 Ra5 e2 Nf3 g1B Ne5 e1B Rh2 g3 Qg4 d1R+ Nd2 b1R Bb5 g2 Bc6 Ra1 Qh3 Ra4 Rc5 Bd7 c8N Na6 Ba3 Rb8 a8R Rab4 Na7 Rc1 Nf1 Qa5 Bb2 R8b7 Rd8 Rc7 Bd4 Rc2 Bf2 Bd2 Bg3 Bc8 Rb5 Rg7 Rc5 Rg6 Rb5 Nc5 Nd7+ Ke7 Nb8 Nd3 f6+ Kf7 Rh1 Bh2 f5 g1R Rc5 Rg2 Rg1 Rf2 Rg2 Rf3 Rf2 Rc1 Ba8 Nf4+ Kc6 Ba6 Kd7 d5 Bc6 d4 Rd5 Bd6 Qh6 Bd3 Qh3 Ne7 Qh6 Re8 h8Q Nc8 Qh3 Re2 Q8h5 Be5 Qh6 Nd6 Ba4 Ne8 Bc6 Kg8 Ke7 Bc2 Q6h5 Be4 f7+ Kg7 f8N Bd6+ Kd7 Kf6 Qh6 Kf7 f6 Bf5+ Ne6 Rc2 Bb7 Re1 Ba8 Rec1 Bc6 Rg5 Q6h4 Kg6 f7 Kf6 Qh6+ Rg6 f8N Kf7 Rc5 Kf6 Rc3 Ke5 Nh7 Qd5 Rc5 Ke4 Rb5 Kd3 Ra5 Kc3 Rb5 Bc7+ Ke7 Qe5 Ra5 Qe1 Rad5 Qe5 R5d6 Qa5 Rd5 Bd6+
R6q/nQ4Q1/K2B1R1n/2NNbb1N/p2rp1b1/1bb5/Bnr1NN1Q/k3n3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e3+ Kd3 Kf7 Kc4 Ke6 b4 Ke5 g4 h5 b6 a5 Kb5 d5 c4 d3 f4+ Kd4 f5 e5 b7 e4 c5 h3 g5 h4 c6 d2 f6 e2 g6 e1B c7 h2 f7 h3 g7 Bd6 f8Q Nh6 g8N Nc6 b8N Be5 Qc2 d1B Nf6 Be6 Na6 Rc8 Qa2 Rh7 Qe7 Qh8 Ba3 Bd2 Qf8 Rd7 Nh5 Be1 Bd3 Bb3 Qg7 Rdd8 Nc3 Bd2 Rc1 a4 Bb1 Na7+ Ka5 Kc4 b5 d4 b6 d3 b7 Rd4 b8Q Be1 Qf2 d2 Qb7 d1N Ne2 Bd2 Rg1 h1N Bd6 h2 Rg6 Bf5 Rf6 Be1 Qh4 Nhf2 Ba2 h1B Qh2 Bf3 Rc2 Nd3 Rc1 Re8 c8N B3g4 Ne7 Rc8 Nd5 Bd2 Rc2 Ne1 Kb6 Kd3 Rc1 Nb2 Nd1 Bb4 Rc7 Kd2 Re7 Kc2 Re8 Rcc4 Nc5 Ba5+ Ka6 Bd2 Neg3 Kc1 Ra8 Rc2 Nf2 Bc3 Qf8 Nd1 Qff7 Kb2 Qg7 Ka1 Ne2 Nb2
k2n4/2RqbqNQ/1bbB3p/1R1brRQB/1R2RN1K/1pB5/2n5/2b2rb1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 a4 c5 g4 Kc7 f4 b5 Kf2 Kb7 d6 e5 d7 h3 Kg3 h6 d5 b3 d6 h2 f5 b2 f6 c4 a5 e3 a6+ Ka7 g5 e4 f7 b4 g6 b3 g7 e2 Nd2 b1B Ra5 c3 Ba3 c2 Qc1 e3 Nc4 Rh7 Rb5 Nf6 g8Q Nd5 Nh3 Nc6 Nf4 Be7 f8R Ndb4 Rff5 Rf7 Qh7 e1B+ Kg4 e2 Ne3 Qe8 d8R Bb7 d7 Bf2 Rc8 e1B d8B Qd7 Rc7 Bg1 Be2 Bef2 Kh3 Rb8 Bh5 Ka8 a7 Rf6 Qd2 c1B Qd5 Nc2 Bd6 Rf8 Qdg8 Rf7 Qg5 Rf6 Rb4 Re6 Rfb5 Re5+ Nf5 Bb6 Kh4 Bgd4 Re1 h1Q+ Kg3 Qd5 Ng7 Bg1 Kh4 Qf7 Rf1 N6d4 Re1 Bd5 Re3 Ne6 Ree4 Bf8 Bf6 Be7 Qhf5 Rf8 Qh7 Rf5 Bfe5 Nd8 Bc3 Re5 Rcc4 Kb7 a8R Bc6 Rc8 Ka7 Rc7+ Ka8 Rcc5 Re6 Ng2 Qf5 Ne3 Ne1 Rg4 Bbe4 Rd5 Nc2 Ng2 Qf3 Re5 Bed5 Ree4 Qf6 Rgf4 Re5 Rf3 Qfe6 Rf1 Rf3 Rf2 Qf7 Rf1 Re3 Rf5 Re1 Nf4 Rf1
1rbQNb1K/2N1Rr1N/2Bp1N2/1n1Q1b2/1B1q4/2RpbNq1/6Rb/k1n1b3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 c4 g5 b4 d3 h4 a4 c5 f3 c6 g3 h5 a3 h6 f2 h7 a2 c7 g2 b6 g4 b5 g3 b7 Ra7 b6 Ne7 Nc3 Na6 b8Q Ng6 b7 Ne5 Nf3 g1B Nb5 g2 Ba3 Bh2 Bb4 g1B Bg2 f1B e3 Bf2 Rg1 Be1 Qb3 Rg8 h8N Be2 Rd1 a1B Ng6 Bd4 Qd5 Bf1 Bh1 Bh3 Rg2 Bb6 Rc1 Bg4 Rc5 Bf5+ Kd4 Rh8 Qa8 Rg8 b8N Rb7 e4 Rg7 Nc6 Rb8 Nce7 Rh7 Qa2 Rg7 Nd5+ Ke6 Qa5 Qh4 Nf6 Qg3 Nh7 f6 Ne7 Rf7 Qc6+ d6 Ng8 Ng6 e5 Nf4 Kc4 Ne2 Qd5+ Kd7 Rc6 Be3 Qb6 Nc1 e6+ Ke8 e7 Kd7 Qdd4 Ke6 e8N Bd7 c8R Nc7 Rd8 Bc8 Rd7 Bhg1 Nc3 Nb5 Nd5 Bh2 Qdc5 Qg7 Qd8 Qg3 Nfg5+ Ke5 Re7+ Bfe6 Rcc7 f5 Ngf6 f4 Qc6 f3 Qc5 f2 Nf3+ Kf5 Rc6 Bed7 Ndc7+ Kf4 Kd5 f1Q Qd4+ Kf5 Qc4 Qff2 Qb3 Kf4 Rc3 Bf5 Nd7 Bg6 Ke6 Ke4 Qa2 B3d2 Qb3 Qd4 Qd5+ Ke3 Rg1 Ke2 Rg2+ Kd1 Qc4 Qa7 Ne5 Bf2 Rg1+ Bfe1 Bc6 Qg2 Nf3 Qg3 Rg2 Qd4 Qc5 Be3 Qd5 Rg7 Ne5 Bf5+ Kf6 Rg8 Kf7 Rg5 Ndf6 Rh5 Ng5 Rh7+ Kg8 Rg7+ Kh8 Rf7 Rg1 Kd2 Ngh7 Kd1 Rb3 Kc2 Rc3+ Kb1 Nf3 Kb2 Rg2+ Ka1
Brn1RrB1/7r/KpN1b1QR/b6n/pbrB3k/1b1QqB2/1rR2N2/3B4 w - - 0 1 illegal: No proof kernel
1B1N2n1/2nn1Kp1/4QB1b/B1k1rn1N/1rBr3q/2n4p/6b1/rQ1RR1BN w - - 0 1 illegal: No proof kernel
4nkb1/Qn1p1q2/K3r2r/Rr2n1Bp/3rQ3/4n1N1/QR1R1r2/QNb2Q1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 Kd3 h5 Kc4 f5 b4 h3 g4 h2 e4 d3 e5 d2 g5 f3 e6 f4 g6 a4 e7 a3 g7 a2 b6 f2 Kb5 f3 c4 Nc6 b7 Rb8 c5 Ne5 c6 Nf6 g8Q Rh6 Bg2 f1R c7 Rf2 Qf1 d1R Ne2 Rd4 Qh8 Kf7 Bg5 Ne8 Ng3 Bg7 Rg1 h1R Ka5 Rhh4 b5 Rhe4 b6 Bf6 Bh1 Re1 Bh4 Bg5 Ka6 Bc1 Bg5 Ree4 Qd3 Ree2 Rd1 Ree4 Qf1 Ree2 Nc3 Re3 Rd2 Re1 Rb1 a1N Rbb2 Nb3 Nb1 Na5 Ra2 Nd3 Rab2 Ree6 Qe5 Kg8 Qd5 Ne5 Qa2 Nd6 Qa1 Qf8 e8Q Kg7 Qe7+ Qf7 Ra2 Ne8 Ra3 Nac6 Ra5 Nd8 Qea3 Kg8 Q3a2 Kf8 Kb5 Ra8 b8R Bb7 c8Q Bd5 Qcc2 Nb7 Qe4 Ra7 Rc8 Ra8 Rcc2 Rc8 Rb2 Rc5+ Ka6 Rb5 Bh4 Rh2 Bg5 f2 Qfe1 f1N Qf2 Ne3 Qf1 Nbd6 b7 Rf2 b8Q Bb3 Qa7 Nb7+ Qc6 Bc2 Ra3 Bh7 Ra5 Nbd6 Qc2 Bg8 Qe4 Nb7+
n1bbn1rN/KN4k1/5p1n/1RBb3B/NQN2bqr/2Q2p2/3r1QN1/R2n4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 b4 a5 e4 f6 g4 Kf7 c4 a4 b6 h3 c5 h2 b5 h4 b7 a3 b6 h3 g5 a2 g6+ Kg7 e5 Be7 e6 Na6 b8N Qd7 c6 Qa7 b7 Rh7 c7 Bb4 e7 Qb6 e8N+ Kh8 Nc6 Rd7 b8Q Nh6 Ba3 Be7 Nd6 Bd8 Na5 Qb4 Nab7 Kg7 Nf3 Qa4 Rg1 h1B Be2 h2 Nc3 Qb4 Rb1 a1B Nh4 Bb2 Rf1 Bc1 Na4 Bg2 Rb3 h1R Bh5 Bf3 Ng2 Rh4 Nc4 Be3 Kc2 d3+ Kb2 d2 Qe1 d4 Qf2 d3 Ra1 d1N+ Ka2 Qa5 Rb5 d2 Kb3 Nc3 Bc5 d1N Ka3 Nd5 Kb3 Kg8 g7 Nb6 Ka3 Kh7 g8N Bd5 Ne7 f3 Ng6 Bf4 Nh8 Kg7 Kb3 Qe1 Ka3 Qe4 Kb3 Rd6 Ka3 Bd7 c8Q Nc7 Kb4 Ne8 Qc6 Bh3 Qcc8 Rd7 Qd6 Rb8 Ka5 Na8+ Ka6 Bhe6 Qcc6 Qf5 Ka7 Qg4 Qe5 Rd6 Qed4 Bc8 Qc7+ Bf7 Qc3 Rd2 Q7a5 Bd5 Qab4 Bdc7 Bd6 Bf5 Be7 Nd6 Nab2 Rg8 Na4 Ne8 Bd6 Bd8 Bc5 Bc8
2n1B3/1Qb3qr/Rpnb2BN/3k4/2bNN1n1/rr6/nBKQb2p/1N2N2R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 g4 c5 e4 h5 a4 f5 a5 h3 a6 h2 g5 b3 g6 c4 g7 b2 a7 b6 Be2 h4 Qb3 f3 Ra4 f2 Ra1 f1B Qd1 h3 Kc2 c3 Qd2 f4 Bc4 f3 Ba2 f2 Nf3 Qf6 Ne1 Ne7 g8N Bc4 Nh6 f1N Bb3 Bg4 Ra6 Rh7 e5+ Kc7 e6 Kd6 Ba4 Bge2 Be8 Qg7 Bg6 Nc8 e7 Nc6 e8B Ng3 Ng4 Ne4 Nh6 Ke7 d6+ Ke6 d7 Bd6 d8N+ Kd5 Ndf7 Nf2 Nd3 Ng4 Ne1 Bc7 Ng5 Bd6 Rf1 h1R Ne4 Rh2 Rg1 Rg2 Rh1 h2 Bf5 Rg3 Bfg6 Rb8 a8Q Rf3 Na3 b1N Qb7 Ra8 Bb2 Bf1 Kd1 c2+ Kc1 Nc3 Nb1 Ke6 d5+ Ke5 Ra4 Bfe2 Ra6 Bc7 d6 Re3 Ra2 Ra3 d7 Rd3 d8N Kd5 Ne6 Bd6 Qf4 Rg3 Kd2 c1B+ Kc2 Rb3 Ra1 Na2 Nd4 Ra3 Qf2 Bcf4 Qe3 Bc7 Qd3 Bfd6 Qd2 Nc3 Ra2 Rb3 Ra6 Na2 Qe3 Ra3 Qd2 Rgb3
rQ1B1b2/1n6/4KQ1r/Bb2N2r/1qNn2Rq/RB1p4/2rb3p/NNkN1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 a5 c4 h3 b4 d3 c5 f6 b6 d6 b7 h2 g5 h4 b5 d2 b6 f3 c6 a4 c7 h3 g6 f2 g7 a3 Nf3 a2 Ne1 Rh6 Nc2 Bd7 c8N Nc6 b8N Nd4 b7 Ne7 g8N Nef5 Nge7 Bb5 Rg1 h1R Nb6 d5+ Kf4 h2 e4 Nd6 e5 f5 Bc4 f1B Qf3 d1Q Bb3 Qe1 N8d7 Qb4 b8B Nb7 Rg4 Rg1 Ba7 Rg2 Nc4 Rf2 Kg5 f4 Bb6 Re2 Qc3 f3 Bd2 f2 Kf4 Rh5 Nf5 Qh4 Nfe3 Rh6 Bd8 Rh5 N2a3 Rh6 Be1 Rc2 Nd1 Rh5 Ke3 Kf5 e6 Rh6 e7 Rh5 e8Q Rh6 Nbd2 Rh5 Nde5 Rh6 Rb1 a1B Rc1 Bb2 Ra1 Bc1 Nb1 Ne2 Qb2 d4+ Kf3 d3 Ra3 Nd4+ Ke3 Bh3 Qe7 f1R Qd6 Rf2 Qb8 Bf1 Qa1 Ke6 Ke4 Rf5 Qc3 Rfh5 Qb2 Qhe7 Qc3 Kf6 Kd5 Kf5 Ba2 Qh7 Nb3 Bd2 Na1 Qhe7 Bb3 Qh4 Rg1 Kf4 Rg6 Nc6 Ke6 Ke4 Nf7 Kf3 Qf6+ Ke2 Nfe5 Ne7 Bf2 Nc6 Bfb6 Ke1 Ba5 Ke2 Rg4 Ke1 Nde3 Ke2 Nd5 Kd1 Nde3+ Kc1 Nd1 Nd4+
2B1rNQ1/Bn2n1R1/1BBbq2q/1q1R3p/K3b2B/n5q1/6rp/1kn1Q1NR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb3 a5 g5 d3 g6 Kd4 e5 f3 c5 h3 b6 f4 c6 a4+ Ka3 f2 e6 h2 c7 d2 b7 f3 e7 Nd7 e8B Qe7 b8B Nc5 b5 Bf5 c8R Nb7+ Bd6 Be4 b6 Qe6 g7 Ne7 Qb3 d1N g8Q Nb2 Bc6 Nc4+ Kb4 a3 Qc2 a2 Nh3 Na3 Ba6 f1Q Nc3 f2 Bg3 Qg1 Bh4 f1Q Qe2 Qg3 Rc7 Re8 Ka4 Rh7 Bf4 Rg7 Ng1 Qc1 Bd6 Qch6 Qe1 Rg6 Rc1 a1N Nb5+ Kd3 Bc5 d4 Rd1+ Kc2 Rd7 d3 Nc7 d2 Be3 Nd8 b7 Nb3 b8B Nb7 Bb6 Nc1 B8a7 Kb1 Rd5 Qge3 Rd7 Rg2 Rd5 Qg3 Rg5 Nd6 Bc8 Nb7 Rg7 Nd5 Na6 Bd6 Nc5 Ne7 Nd7 Rd8 Nf8 Re8 Qe3 Bf3 Rf1 Be4 Rf2 d1Q+ Rc2 Qef6 Qe1 Qd5 Rd2 Qfe6 Rd4 Qc5 Rd5 Qb5+
bQq1Q3/1RB1bNNn/B1q1Qr1p/n3br1N/b2K4/4Q2Q/2p2n2/k1n1R3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 d4 Kd5 b4 a5 b6 f5 g5 c5 b7 c3 g6 Kc4 d5 h3 g7 f3 Ke3 h6 b5 c2 b6 Kb3 d6 h2 d7 a4 Na3 f2 Nf3 f4+ Kd3 c4+ Kd4 c3 e4 Be7 e5 Ra5 e6 Nf6 g8Q Rf5 Nh4 f3 Ba6 f1B Ng2 f2 Qdg4 Bb5 Qh3 f1Q Nf4 Nh7 Rb1+ Ka2 Nc4 a3 Ne3 Qg2 Nh5 Qc6 Re1 h1N Qe8 Qdc7 d8N Nf2 Nf7 Rf8 Bd2 Rf6 Nf5 c1N Bf4 c2 Nfg7 Ba4 Qd7 Qd8 Bc7 Rf5 Rb2+ Ka1 Qd6 a2 Rb3 Nd7 b8Q Nc5 Qa7 Bb7 Rb2 Ba8 b7 Qc8 b8Q Nb7 Rb5 Bh4 e7 Na5 e8Q Bd8 Qde6 Be7 Nd6 R8f6 Rb7 Re5 Nf7 Ref5 Bb5 Kb2 Qc5 a1B Qcc3+ Kb1 Ba6+ Bb2 Qhe3 Ka1 Qh3 Nd3 Ke3 Nf2 Qcb3 Bd6 Qd3 Bba3 Kd4 Bf4 Qdf3 Be7 Qfe3 Be5+
qr1Q4/6rQ/q2KnRp1/1kN1BBr1/N1R1Np2/4N2b/5B2/r1bn1qNq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 Kd3 Kd7 e4 f5 b4 a5 c4 f3 h4 f4 c5 a4 b6 Kc6 e5 g6 b5+ Kd7 b7 g3 c6+ Kc7 h5 Kb6 h6 g2 h7 a3 e6 a2 c7 f2 e7 Qd6 e8N Ne7 Na3 Kc5 b6 Nd7 b8B Rg8 h8Q Nf5 b7 Qa6+ Nc4 Rg7 Nd6 Ne3 Ne4+ Kb5 Qh7 Ba3 Qd2 Nd1 Ne3 Nf8 Rh2 Bd7 c8N Be6 Nb6 Bh3 Na4 Ne6 Be5 Rb8 Be2 f1R Bg4 Bb2 Rb1 a1Q Bf5 Qa2 Ra1 Ba3 Bb2 Qa8 Bc3 Bc1 Bb4 Qa6 Be7 Re1 Bh4 Qa8 Bf2 Rf1 Ke2 d3+ Kf3 d4 Rh1 Qc4 Ra2 Re1 Rc2 Qc6 Rc4 Qca6 Rc6 Nd8 Rf6 Ne6 Qa2 d2 Qd5+ Kb4 Qd8 d3 Rh2 Kb5 Rh1 Rc8 b8N Rf1 Ne2 g1R Nd7 Rg5 Ng1 Rb8 Rh2 Nc3 Ndc5 d1Q+ Ne2 Qe1 Ng1 d2 Ne2 d1Q Rh1 Ba3 Rg1 Q8a7 Nd2 Na2 Ke4 Qa1 Kd5 Qa8+ Nb7 Qeb1 Ne4 Rc1 Rd1 Bb2 Rd4 Rd1 Nb6 Nc3+ Kd6 Rc1 Nbc5 Qd3 N2g3 Qd1 Ne2 Qh1 Ng1 Qb1 Nc4 Qd3 Ne3 Qf1 Rc4 Ra1 Qdh8 Bc1 Qd8 Q6b7 Nba4 Nd1 Nb3 Qc8 Nbc5 Qca6+
1Br1kBR1/B6p/q1n1nQb1/RKb3RN/1npBn3/N1b2b1r/6B1/Q3q3 w - - 0 1 illegal: No possible last move
2K4n/N2npRb1/1R1B4/1bN2Brk/1r2qB2/1Bn2q2/Q1BQ1pb1/1N1b3n w - - 0 1 illegal: No proof kernel
2RN1r2/B2Q1n2/r1Q2Bb1/pRb1n1rq/1BqR3B/K3k3/n1p1p3/1Nq4B w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Kg6 d4 e5 Kd2 c5 Kc2 a5 b4 h5 Kb2 c3+ Ka3 c4 g5 Kf5 g6 c2 d5 h3 b6 h4 g7 c3 d6 h2 b7 e3 d7 Ke4 f5 h3 f6 e2 f7 e1N Nf3 Qe7 d8B Qe6 Nd4 Na6 b8R Nd3 Bcg5 Nh6 g8Q Qc4 Nc6 Bc5 f8B Nf7 Qg6+ Bf5 Bh4 Ke3 Bg2 e4 Rc8 Nde5 Qd7 c1R Qf6 c2 Rd1 h1Q Rd4 h2 Bf3 Qhf1 Bh1 Bg6 Qfd6 Rh5 Bdf6 Rg5 Nd8 Qd1 Q6c6 Qh5 Ra2 Rf1 Rb2 Rf4 Bf3 h1Q B8e7 Qhf1 Bh1 Qc1 Bd6 Bb6 b5 Nb4 Bde7 Bc5 b6 Rff5 b7 Ra6 b8B Rf2 Ba7 Rf1 Be1 Na2+ Bb4 Nh6 Bg7 Rf8 Bh8 Nhf7 Bhf6 Rg1 Bh4 Rg5 Bf6 Kf4 Rd5 e3 Rd3 e2 Rd4+ Ke3 Rg4 Nh6 Rd4 Bb6 Bbe7 Nhf7 Bd6 Qf1 Rb5 Qg1 Bb4 Bc5 Qb6 Qd1 Qbc6 Qc1+
q4QbQ/1k2Nn1R/r1r2pRb/4N1nN/2K1B3/2n2Q1p/p2bQrQ1/2Bq4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 h5 Kd2 a5 Kc3 c5 g4 Kc7 e4 f3 g5 h3 b6+ Kb7 d5 h2 b5 f2 d6 f6 e5 a4 e6 h4 e7 a3 e8Q a2 g6 Ra6 d7 Ne7 g7 Nbc6 g8N Ne5 Nh3 Bh6 Nd2 Nf7 Bd3 f1N Nf4 Ng3 Nf3 Rh7 Rg1 h1Q Ne5 h3 Rb1 Rg7 Nh5 Qd5 Qf3 Ne4+ Kc2 c3 Rg6 Neg5 Be4 Qc6 Kb3 c2 Kc4 Nd5 Ne7 Nc3 Qg8 Qf8 d8Q Be6+ Qd5 Qd8 Qe8 Qd7 Bd2 c1R Qg2 Rf1 Bc1 Rf2 Qf8 Bg4 Qd3 Qd6 Qdf3 Qd1 Qh8 Rg8 Qe2 Rc8 Qef3 Kb8 b7 Qe8 Rb2 Rcc6 Rd2 Ka7 Rd7 Qa8 Rc7 Bc8 Rd7 Kb6 b8Q+ Bb7 Qbe8 Bc8 Rd8 Kb7 b6 Be6+ Rd5 Nd8 Qef8 Bg8 Qe2 Ndf7 Rd3 Nh7 Rdg3 Bd2 Rg7 Bh6 R3g6 Nhg5 Rh7 Na4 Kb5 c4 Qgf3 c3 Qfg7 Kb8 b7 c2 Kb4 Kc7 Kb3 Kb6 Kb4 Nc3 b8Q+ Qb7 Qc8 Qa8 Qgf8 Ka7 Qcg4 Kb6 Qgg2 Kb7 Ba3 c1B Bb2 Bd2 Bc1 Nd5+ Kb5 Rd6 Kc4 Re6 N7c6 Nc3 Ne7+ Rec6+
6n1/Rbnk1BR1/1rp4B/1qBr3p/NbNR2KR/1Q1q2p1/3rn3/1Qb1R3 w - - 0 1 illegal: No possible last move, all moves rejected
r7/KRQ1R3/bRpn1qnQ/1B1p1kr1/pb1R3B/1B2n2r/b2N1qR1/6N1 w - - 0 1 illegal: No proof kernel
nn1b2BB/BB2ppn1/2r1R2Q/1b2R3/1p2Q2K/1qNq4/2B2bN1/Qr1q3k w - - 0 1 illegal: No proof kernel
1K6/5B2/1nR1b2B/2rN1rbp/k2BNn2/2b1R2q/pp1QBb1b/1BnR2Q1 w - - 0 1 illegal: No proof kernel
Qb2R2K/Rb3B2/nNp5/2kpbR1r/3r1n1N/bB1Qq1B1/1p2b3/1B1n1B2 w - - 0 1 illegal: No possible last move
QK1b4/4R1nk/2pQb1rp/3r3b/n1B2NNB/q3r1NB/7p/Nb1R1b1N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 Kf3 f5 g4 Kf7 e4 Kg7 d4 h6 a4 c6 a5 b3 g5 h3 a6 b4 d6 h2 g6 b2 a7 b3 d5 Qh4 e5 Be6 d7 Be7 d8N Nf6 d6 Rf8 d7 Ba3 Ne2 Ne8 Qd6 Qe7 Nbc3 b1B Nb7 b2 d8N Bc2 Bh3 b1R Ng3 Bd7 e6 Bb4 Nce2 Kh8 g7+ Kh7 Rd1 Na6 Nc5 Rg8 Nb3 Ba5 Nh1 Nc5 Neg3 Na4 Bd2 Rb2 Be1 Bb1 Ra3 Rb8 a8Q Re2 Na1 Rb5 Re3 Rd5 Bf2 Qf8 e7 Bc7 Ne6 Bd8 Ne4 Re1 Bh4 Bc8 Neg3 Bd7 Kf2 f3 Nf4 Be6 Re4 Re3 Re5 Nf6 e8N Nh5 Re4 Bd7 Re7 Be6 Nfe2 f4 Nf6+ Kg6 Ng4 Kh7 Kf1 f2 Kg2 f1B+ Kf2 Ree5 Kf3 Re4 Nc1 Re1 Nd3 Be2+ Ke4 f3 Qa6 f2 Qa8 Rd4+ Ke5 f1B Nf4 Rd3 Qd5 Bf3+ Kd6 Ree3 Qd4 Bf7 Kd7 B7d5 Kc8 Be6+ Qd7 Rd5 Kb8 B3e2 Re8 Qa3 Re7 Rf8 Qc7 Rf6 Qd6 Rg6 g8B+ Kh8 Bf7 Ng7 Ne5 Bh5 Ng4 Bc8 Be6 Kh7 Bf7 Rd4 Bd5 Be6 Bc4 Rd5
2rN2B1/1bb1kpp1/n3n1RK/2r2b2/2N1RQQ1/qpQ5/2brbQ2/2B1NQ2 w - - 0 1 illegal: Other
6rb/1R1pQn2/bB2r3/NKp2Rn1/2RRbn1b/1pNR2N1/B3Q1rq/6k1 w - - 0 1 illegal: No possible last move
krN1b1RN/2qr2n1/1Bn1B2Q/2Rn2R1/pnKp1Q2/1q3N1n/1N2p3/b3N3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 e5 g4 h5 b4 d5 c4 Kd7 f4 Kc7 c5 Kb7 b6 a5 f5 e3 Kd3 a4 g5 e2 b5 e1Q g6 h3 g7 h4 f6 h2 f7 h3 Na3 Rh7 Nc2 Qc7 Nf3 Nc6 Qd2 Qd1 Rg1 h1N Nce1 h2 Rg5 Nh6 g8R Bd7 Bh3 Be8 Be6 Bg7 f8N Nf5 Ng6 Rb8 Nh8 Ka8 Ra2 Bf6 Rc2 Rd7 Bb2 Ng7 b7+ Ka7 Bc3 Qb1 Ba5 e4+ Ke2 e3 Kd3 e2 b6+ Ka6 Qf4 Qb3+ Rc3 Be5 Qh4 Bf6 Qh6 Be5 Nd2 Bf6 Nc4 Be5 Nb2 Nf2+ Kd2 Nh3 Kd3 Rbd8 b8Q h1N b7 N1f2+ Kd2 Nd3 Bb6 Ndb4 Rc2 Ne7 c6 d3 Rc5 Bc3+ Ke3 d4+ Ke4 Rd6 Ke5 d2 Ke4 d1N Ke5 Qd7 c7 Ne3 c8N Nec6+ Ke4 Rd5 Qf4 Qc7 b8N+ Kb7 Nd7 Ka8 Ne5 R5d7 N5f3 Ned5 Ne7 Na2 Kd3 Rb8 Nc8 Qb4 Nd1 Ba1 Nb2 Qa3+ Kc4 Nab4 Qe5 Qe3 Qf4 Qb3+
1N4kB/1bqQp3/3RKbBp/2p1br2/2Bb1n2/1RR1R1b1/4q1R1/Q2n1N1r w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 c5 Kf4 a5 Ke5 e3 f4 h6 g4 c3 b4 h3 d4 c2 g5 a4 f5 a3 d5 e2 f6 e1B g6+ Ke8 g7 Kf7 d6 a2 d7 h2 b6 Ra5 b7 Ra7 b5 Ra5 b6 Rb5 Nd2 Rb3 Bc4+ Kg6 f7 Kh7 Ngf3 Nc6+ Ke6 Rd3 b8R Qc7 b7 Bg3 Ne5 Nf6 Re1 h1Q Bb2 c1B Nf1 Qh5 Re3 Na7 Nc6 Nb5 g8B+ Kg7 Bc3 Qe2 Bh7 Bb2 Rc1 a1B Bg6 Rd5 Ra8 Rh5 b8R Bb7 d8Q Rh1 Q8d7 Rg8 Bd4 Nc3 Ra2 Rh8 Qa4 Nd1 Rc3 Rg8 Qa6 Kh8 Qa5 Bg7 f8R Nh5 Rfd8 Bf6 Qa8 Rf8 Be5 Ba6 Rbb3 Bb7 Nb8 Kg8 Qa3 Bg5 Bh8 Bf6 Qb5 Bfe5 Rd6 Rf5 Qd7 Bf6 Rc2 Bbe5 Rcc3 Bd4 Qc1 Bb2 Qa1 Bde5 Rc2 Bbd4 Rcc3 Qe1 Rh2 Qe2 Rg2 Nf4+
4qRBr/1rR1nB1N/2RBRQ1p/1n2rq2/QKpbkr2/7q/bp4R1/2N5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kf6 e4 c5 g4 b5 a4 f3 e5+ Kg5 e6 Kf4 e7 f5 e8R h6 a5 b3 Kc3+ Kg3 d6 f2 g5 h3 a6 f4 d5 b2 d7 h2 g6 f3 d6 Nc6 a7 Nd4 g7 Qb6 d8Q Bb7 d7 Ne7 g8B Qc6 Ra6 Bg7 Nd2 Kf4 Bfc4 f1Q Bcf7 b1R Qa4 f2 Nb3+ Ke4 Nf3 c4 Rg1 h1Q Rg6 Qhh3 Bf4 Bf6 Nc1 b4+ Kd2 b3 Kc3 b2 Kb4 Rb8 a8R Nb5 Bd6 Bd4 R8a7 Bc8 Rb6 Rb7 Rg2 Qd3 Rba6 f1R Qb6 Rf2 d8R Bf5 Rc8 Qc2 Rf8 Qe8 Rc6 Ra1 Qd8 Ra3 Rab6 Re3 Rba6 Ng6 Qf6 Ne7 Rc7 Bh7 Rac6 Qd3 Raa6 Re1 Ne5 Rf4 Nd7 Qf5 Qg6 Qh3 Nf6+ Kf3 Rab6 Re5 Qg5 Bg6 Nh7 Ke4 Qf6 Bh5 Bc5 Bd1 Re6 Bc2 Bd6 Bb1 Rbc6 Ba2
1rN3Kn/b4R2/6p1/qpqnk3/1QBpq1rQ/2QqQQ1b/4R3/1B1rN1B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 e5 h4 g6 f4 b3 a4 g3 c4 d6 h5 d3 h6 g2 a5 b2 h7 d2 c5 e4 a6 e3 c6 e2 c7 e1R a7 Nd7 Ra2 Re2 Qe1 d1Q+ Nd2 b1Q Nf3 Re6 Bc4 g1Q Qe3 Re4 Ne1 Ba6 c8Q Qg5 Rf1 Rb8 a8B Ne5 Rc2 Kg7 Ke6 d5 f6+ Kh6 f7 Kg7 f5 d4 f6+ Kh6 Bb7 Bg7 f8Q Rg4 f7 Nf6 Be4 Nd5 Qb4 Qa5 f8Q Nf7 Bf5 Qe2 Ne4 Qd3 Nd6 Kh5 Qcc5 Be5 Nc8 Qe4 Rb2 Qbd3 Re2 Kh4 Rff2 Qh5 Rf4 Kg5 Qc6 Bb7 Qc3 Ba8 Qfb4 Rf8 h8Q Bd6+ Qe5 Bc5 Qg3 Bb6 Be3 Nh8 Bg1 Ba7 Qf3 Bb7 Qd7 Ba6 Qh7 Rf6+ Kd7 Rf7+ Ke8 Re7+ Kf8 Re6 Qec7 Kf6 Qce7+ Ke5 Kg8 Bb7 Qh6 Bc6 Qh4 Bd7 Qhf2 Qg5 Qhh4 Qe7 Q2e3 Qc5 Ba2 Re7 Be6 Rh7 Rf7 Rh5 Bb1 Rf5 Qg2 Rf2 Qgf3 Rf1 Nc2 Rd1 Ne1 Nb6 Bc4 Nd5 Rf2 Rg5 Ra2 Bh3 Re2 Rg4
7Q/3Q2B1/Bq2pNNb/1R3b1Q/2p3pq/K2RQ3/1nQ1qrbB/k1q1r2n w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 h4 Kd7 f4 Kd6 a4 Kc5 d6 Kd4 h5 g5 h6 b5 d7 c5 a5 e6 f5 b3 f6 b2 f7 e3 h7 e2 a6 g3 a7 g4 Nf3+ Kc4 d4 b4 Kd2 b3 d5 g2 d6 g1Q Nh4 Bb7 Ng6 Na6 Ra3 Nf6 Rh5 Nb4 Nc3 b1B Ne4 b2 Rd3 Bh6+ Rg5 Qg2 f8B Nh5 Bg7 Qb6 d8Q Rf8 h8Q Ng3 d7 Nh1 Qe8 Rf2 d8Q Qg3 Qde7 Qh4 Nf6 Bg2 Q7d7 Bc2 Qe1 b1Q Ba3 Qa2 Kc1 Rd8 Qd1 e1Q a8Q Qe2 Bb2 Qa3 Qf3 Qc3 Qef7 Kb3 Qe3 Ka2 Qfe8 Qc4 Be5 Ra8 Bb8 Ka1 Bh2 Bb1+ Qc2 Rd8 Qc8 Rd4 Qcd7 Re4 Nf8 Re5 Qh5 Qf4 Ng6 Re4 Rgd5 c4 Rb5 Qfg5 Rdd5 Ref4 Qed3 Rd4+ Qcd2 Be4 Bg2 Bf3 Qb3 Bd3 Qc2 Bf5 Rd6 Ba8 Bb7 Qge3 Ba6 Bg2 Qe4 Nd3+ Kc2 Qb8 Kc3 Qc7 Qc2 Nb2+ Kb4 Qc1 Qe3 Rd1 Rd3 Qb6 Ka3 Re1
1RNqn1R1/1QBB4/1NpN3r/6Nn/2qb3p/1nr4K/k1p3RQ/1qn1Nb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kd5 d4 h5 e4+ Ke6 b4 a5 g5 f5 g6 c3 e5 Kd5 g7 c2 e6 c6 b6 a4 e7 f3+ Kh3 a3 e8N a2 b5 f2 b7 Nd7 b8Q f4 b6 f3 b7 Rh6 Bf4 Bc5 Bc7 Ngf6 g8N Ra3 Qd2 Rc3 Nd6 Ne8 Na3 Ba7 Rd1 a1N Rh2 Nb3 Nac4 Nc1 Rg2 Bc5 Bd3 f1Q Bf5 f2+ Nf3 Ndf6 Bd7 Qd3 Qa8 f1N b8R Ba6 Qb7 Bb5 Qe2 Nd2 Rdg1 Ndb3 Qd2 Bb6 Qf4 Qe2 Qh2 Ba6 Nc8 Qe4 N4d6 Bd3 Ne1 Qe6+ Nf5 Kc4 d5 Bd4 d6 Qf7 Nge7 Bf1+ Qg3 Qd5 Nb6+ Kb4 Nec8 Ka3 Qf3 Ka2 Qg3 Bd3 Qh2 Qc5 Be6 Qc4 d7 Be2+ Qg3 Bf1 Nfd6 Qe7 d8N Qd7 N8f7 Qd8 Kh2 h3 Bd7 h4 Qf4 Nh5 Rg8 Ka3 R1g2 Ka2 Ng5 Bf6 Kg1 h2+ Kf2 h1Q Qh2 Bd3 Kf3 Bd4 Kg4 Qf1 Kh3 Qh1 Nef3 Qd1 Ne1 Bf1+ Nef3 Nd3 Ne1 Qb1 Qf4 Ndc1+ Qg3 Bd3 Qh2 Bf1+
B1R3bb/2nN3K/1Bp2r2/b2Q1p2/r2QQq1p/B2bR3/4NQn1/1k1rq1Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 g5 h5 b6 f6 b7 f3 d5 h3 g6 f2 g7 c3 d6 a4 d7 h2 Kf5 c2 Kg6 Kb3 e4 f5 e5 h4 e6 a3 e7 a2 e8Q Nh6 g8Q+ Nf7 Ne2 Ra4 Bg2 f1Q Qe4 Ba3 Nbc3 Qe7 d8B Qf4 Nd5 Nd6 Qg1 Nc4 Nb6 Bb4 Nd7 Ba5 Qgd5 Na6 b8Q+ Bb7 Bf3 Rf8 Qba7 Bc6 Rb1 a1B Qad4 Ka2 b4 Bb5 Ba3 c1R Rb3 Rd1 Re3 Qe6+ Kg7 Rf6 Kh7 Bb2 Qf2 Ka1 Rg1 h1B Rg8 Bg2 Rh8 Bf1 Bh1 Bc6 b5 Ka2 Qeg2 Kb1 b6 Bbc3 b7 Qe8 Q5e5 Bd5 b8Q+ Bb2 Qb7 Bg8+ Kg7 Qe6 Qgg1 Qe8 Qb4 Qe6 Ba8 c6 Bb6 Nc7 Qed5 Qee5 Ng3 Bd3 Ne2 Qe8 Qe7 Ba1 Qee4 Qe6 Rh3 Ne3 Rf3 Ng2 Re3 Bf7 Rf8 Bg8 Rc8 Qe7+ Kh8 Qb4 Kg7 Qe1 Q4c5 Rf8+ Kg6 Bh8 Qcd4 Be6 Kh7 Rf6 Bb4 Bf7 Ba3 Bg8+
1N4Br/1K1b3B/2pp4/N1qBrr1q/n5Q1/1RNBB2r/p1R2n2/k1bQ1n2 w - - 0 1 illegal: No proof kernel
4R3/3B2B1/kp6/1p2rQp1/1qBn1QNN/5Brb/1r3n1N/bbqBK1Rr w - - 0 1 illegal: No possible last move
Q4n1n/1R2K2p/q1N1Qp2/N1bn3p/bRn1BkNB/4N2B/3rr3/2N1q1b1 w - - 0 1 illegal: No possible last move
b1r2kNN/4p2n/1Rqp1N1N/Q1r1Qb1K/3p1q2/R1BB1b2/1R6/3Nn1bq w - - 0 1 illegal: No possible last move
1Rn1Q3/3ppbN1/1bBRQQ1q/1n1r1B1Q/r2pq1K1/N2Q4/bb6/r1k1B3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 b4 Ke6 g4 Kd5 c4+ Ke5 b6 a5 g5 h5 c5 h3 g6 a4 b7 e3 Kf3 h2 b5 e2 c6 e1B c7 a3 b6 a2 g7 h4 Bd3 h3 Bf5 Nh6 g8Q Ra4 Ne2 Ba5 Na3 Nc6 b8Q Ba6 b7 Bc4 Bd2 Bf7 Be1 Bb6 Qd3 Na7 Ng3 Nb5 Rb1 a1R c8B+ Qc7 Qa7 Qd6 b8Q Bg7 Rg1 h1B+ Rg2 h2 Bb7 Ba2 Bc6 Nf7 Kg4 Rh5 Qbe8 Qh6 Qa5 Nd6 f3 Nc8 f4+ Kd6 Rg1 Kc5 Qe6 Bhd5 Rg2 h1Q Re2 Rh2 Nh5 Qe4 Rf2 Be5 Ng7 Rh1 Rh2 Bd6 Rh5 Bdb3 Rg5 Bc4 Rg6 Rh5 Q6f7 Bb8 Be6 Bd8 Qa6 Nc3 Ba8 Bbc7 Rb8 Ba5 Rf6 Re5 Qh5 Nb5 Bad5 Bc3 Rg6 Qe3 f5 Kb4 f6 Kb3 f7 Kb2 f8Q Kc1 Bf5 Bb2 Qd6 Bc7 Bc6 Bb6 Qd5 Bcb3 Rd6 Bc4 Qf6 Qe2+ Q5f3 Bf7 Qe4 Rd5 Qee6 Qe5 Qd3 Qe4+
rRn3K1/B1pBN1qQ/N1b1n3/2Nn2k1/3q4/1N1Np3/2RbB2p/2Qrbb2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 g4 a5 b4 e3 d4 c3 g5+ Kg6 Ke5 a4 f4 a3 b6 e2 b7 e1Q+ Ne2 e6 f5+ Kh7 d5 a2 b5 c2 b6 h3 d6 h2 d7 h4 f6 Kg6 f7 h3 Be3 c1N Nf4+ Kg7 g6 Kh6 g7 Qdh4 d8Q Nb3 Nd3+ Kg6 Qd7 Nd4 Qc1 Qc3 Be2 Na6 b8N Nb4 b7 Nd5 Nd2 Nge7 g8B Bh6 Rb1 a1B Na6 Bg5 Rd1 h1B b8N h2 Nac5 Ba6 Ndb3 Nc8 f8N+ Kh6 Bf2 Bd2 Qh7+ Kg5 Ng6 Bf3 Bf7 Rd8 Be8 Bb5 Rh1 Bc6 Ne7 Bg2 Bd7 Bf1 Nba6 Qh6 Ke4 e5 Rb2 Qc4 Rc2 Ne6+ Bd4 Bc3 Rg1+ Kh4 Kf5 e4 Rg8 e3 Rh8 Be1 Rf8 Bcd2 Rh8 Kg3 Re8 Qf8+ Kg6 Qf7+ Kh6 Kh4 Rg8 Qf8+ Kg6+ Qh6+ Kf7 Qc3 Re8 Kg5 Kg8 Qb4 Na4 Qc4 Ba7 Qd4 N4c5 Nc3 Nf5 Qg4 Qb2 Bc1 Ne5 Nb6 Bc8 Rd1 Ned3 Ncd5 Ne7 Bcd2 Qc1 Qd4 Bd7 Qhf6 Rb8 Nc8 Rb2 Qfe5 Rc2 Qg7+
q1Q1RbK1/2prq3/B6p/Qbq1N1p1/q1n2Q1N/1rR2Q2/3Q1r2/BnN2k2 w - - 0 1 illegal: No proof kernel
2B2R1N/kpb3nR/3N1R1R/1q1b1p2/1K1n4/1b1q1pr1/3rN1QQ/2BR2nn w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 h5 e4 c5 a4 Kc7 g4 Kb6 a5+ Ka7 g5 c4 e5 f6 e6 f3 d6 b3 Kc3 h3 d5 h2 d7 b2 a6 h4 g6 h3 e7 Rh7 e8R Nh6 g7 Nc6 g8Q Nd4 d6 Nhf5 Na3 b1B Qd2 Rg7 Re7 Rg3 Ne2 Ng7 Kb4 c3 Nc4 c2 Qh8 Qe8 d8R Ba2 d7 Bb3 Nd6 Qg6 Rde8 Qd3 d8N Bce6 N8f7 Bed5 Qg8 Rd8 Nh8 Rd7 Re6 Be7 Rf8 Bd8 Rf7 Bc7 Rfe7 Nh5 Rh7 Ng7 Bg2 Rd8 Rd1 h1N Ra5 h2 Bh3 Bc6 Rah5 Bcd5 R5h6 Nf2 Bg4 h1N Qf4 Nh3 Qd2 Kb6 a7 Ng1 a8R Rd7 Rf8 Ka7 Re7 Rd8 Bc8 f5 Ref7 Rd7 Rff6 Rd8 Bb2 c1Q Ba3 Qc6 Bc1 Qe8 Qf4 Qd7 Qh4 Qe8 Qh2 Qeb5+ Ka3 Be4 Qe6 Qb1 Nf4 Nc6 Ndf7 Ba4 Qea2 Bb3 Qag2 Rd2 Ne2 Nd4 Nd6 Qc2 Rh5 Bed5 R5h6 Qd7 Kb4 Qd3 Rd8 Qc6 Rdf8 Qcb5+
7B/R5r1/p1NK1nB1/rNQ2pb1/3nkb2/Qp4bb/rQ2qR2/2Q1rQ1R w - - 0 1 illegal: No possible last move, all moves rejected
N1kq1B1K/r4b2/ppb1r1p1/1N2QnRN/n3Rb1n/1p3r2/6BQ/4NB1N w - - 0 1 illegal: No proof kernel
Q2b1qb1/1Bpk4/p1Nn1Kpr/2bN2Q1/3B1R1r/1rpn4/2B3R1/BnBQ4 w - - 0 1 illegal: No possible last move
N4qR1/1k1qb2r/3Br1R1/1bQK4/Nq2pQ2/3ppp1n/2b1nN1B/1BN3N1 w - - 0 1 illegal: No proof kernel
KB6/1BQ3b1/1BRQ1p1N/4bq2/2r2n2/1Nkp1p2/2pn1r1B/RnqR1bB1 w - - 0 1 illegal: No proof kernel
N1rb3q/2rB1bNp/N2p1nQ1/1n2K1BR/kp1p2q1/Bb5N/N7/2r1QR2 w - - 0 1 illegal: No possible last move, all moves rejected
2nNB3/Rrb1p3/b1pbB2Q/r1Nnpqp1/8/1R3QB1/Q7/nqk1B1KB w - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 h5 g4 hxg4 c4 dxc4 e5 f6 Qb3 fxe5 Qf3 Rh7 Qd1 Rh8 d4 Kf7 h4 Ke6 a4 Kf5 f4 Ke4 Kf2 b5 h5 b4 a6 b3 f5 g6 f6 c3 a7 b2 a5 c2 d5 Qd7 f7 Qf5+ Qf3+ Kd4 d6 Bg7 f8Q Rh6 a6 Nc6 d7 Qe4 d8B Rh7 h6 Qf5 Bh3 Rb8 a8B Rb7 a7 Rh8 h7 Nf6 Qg8 Bh6 Bf4 c1N Qa2 Nd5 Nc3 b1Q Ne4 Nb3 Bg3 Bc1 Nc5 g5 Ne2+ Kc4 Re1 Ba3 Nd4 Rg8 h8Q Rf8 Na6 Bd6 Re3 Re8 Nc5 Kb4 Nd3+ Kc3 Ne6 Rf8 Qh6 Rh8 Qa5+ Kc2 Ndc5 Kc1 Kg1 Rf8 Ra3 Na1 Reb3 Re8 Qa6 Rh8 Qae2 Re8 Qa2 Rh8 Bf2 g3 Ra6 g2 Bg3 Rb6 Ra5 Ba6 Bb7 Rg8 a8B Na7 Bc6 Nc8 Be8 Rg6 Bac6 Rb7 Bg4 Ndb6 Be4 Nd5 Raa3 c6 Ba5 Rg8 Nd8 Rh8 Bae1 Rg8 Kf2 g1B+ Kg2 Be3 Ra4 Bd2 Kg1 Ba5 Raa3 Bac7 Ra5 Qg6 Be6 Qf5 Ra4 Bb5 Ra7 Ba6 Qfe2 Rh8 Bh1 Rf8 Qf3 Rh8 Qf6 Rh4 Qh8 Ra4 Qh6 Ra5
3R1QR1/pN1R1qQ1/b3RbN1/3R1Qn1/2q1p2K/B2r1Br1/p1nkn2p/1b6 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 b4 Kf7 f4 Kf6 Kf2 Kf5 d4 e5 d6 h5 b5 c5 d7 c4 d5 a3 d6 h3 Kg3 c3 b6 a2 b7 e3 Qd5 h2 Ba3 e2 Nd2 e1N Rd1 c2 Ne4 c1Q Be2 Qc2 Nf3 Nf6 Nc5 Qc4 Kh4 Nc2 Rhe1 Qe8 d8R h1B d7 Nc6 b8R Nh7 Nb7 Bg7 g3 N6d4 g4+ Kf6 f5 Qf7 Rg8 Ng5 d8R Rh6 Rd2 Rg6 Rd7 Bg2 Bd1 Ne2 Qb5 Bf1 R7d5 Bd7 Rbd8 Bc6 R5d7 Be4 R2d5 Rb8 Nd4 Rc8 Ne6 Rc6 Nf4 Rd6 Rc5 Rd3 Rcd5 Ned4 Bf3 Bh8 Kg3 Rg7 Ng6 h4+ Kf2 h3 Kg3 h2 Kh4 Qe7 Re3 Ne2 Qb1 Kf7 f6 Ke6 f7 Kf6 f8Q+ Qf7 Ne7 Ke6 Qb5 Rg6 Qa5 Bf6 Qc5 Rg7 Ng6 Nh7+ g5 Rb3 Qce7+ Kf5 Qfe8 Na1 Rh8 Ng1 Nf4 Qa4 Rd1 Bb1 Qc5 Nc2 Qef8 Ba6 R1d6 Qd4 Rd3 Ne2 Re6 Qd5 Qb5 e4 Qa5 Be5 g6 Qc4 Rd2 Rg8 g7 Re3 Nd5 Rc3 Ne7+ Kf4 R2d6 Bd4 Qf5+ Ke3 Rd5 Kd2 Qe8 Rf8 g8Q Rd3 Qgg4 Rg8 Qf8 Rg6 Rg8 Ba1 Qg3 Bc3 Qge5 Rg3 Ng6 Ng5 Qeg7 Bf6
QNr5/n2N3q/B1p3nb/RbR2bp1/r5k1/RpR5/Qp3Rr1/b1N1BK2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 h4 f5 a4 b5 e4 g5 h5 g3 h6 g2 a5 b3 e5 f3 d6 Ke6 a6 f4 d5+ Kf5 e6 b4 e7 Be6 e8Q Nd7 h7 Ne5 a7 Qe7 d7 Nh6 d8N Qc5 d6 Rc8 a8R Kg4 d7 Qc2 Ba6 Ng6 Bd2 Bf5 Na3 Ng8 Nc6 N8e7 d8R Bh6 Nb8 c6 Ne2 g1B Kf1 Bd4 Be1 f2 Qd2 Bdg7 Ra2 Ba1 Nc1 b2 Rh3 b3 Nc4 Rf8 h8R Rf6 Qa5 Rf7 Kg2 f1B+ Kg1 f3 Ra3 B1d3 Nb6 Bb5 N6d7 f2+ Kg2 Qb1 Rf8 f1R Rc3 Rf4 Qa4 Rc4 Kf1 Rf6 Rf7 Re6 Qh8 Re2 Qf8 Be6 Rf2 Qf5 Re8 Qf7 Qg8 Qh7 Ref8 Rd2 R8f5 Re2 Rc5 Bf5 Bb7 Rc2 Ra5 Re2 Ba6 Rd2 Rh2 Rg2 Qe8 Rc7 Qf8 Nc8 Qd8 Na7 Qc8 Rg3 Rf2 Rg2 Qb7 Rc8 Qa8 Rf4+ Qc4 Rd4 Qd3 Rc4 Qb1 Qf7 Qa2 Qg8 Rfc2 Qh7 Rf2 Ra4+
n1R5/1Brp4/7n/3pR1RB/kr1B2rb/np2p2B/2Q1NQr1/K2bBqN1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 g5 b4 axb4 h4 gxh4 d5 c6 Bb5 cxd5 Bc4 Nc6 Bf1 Nb8 Kd2 e5 f4 h5 g4 b5 a4 b3 Kc3 e4 Kb2 h3 c4 b4 c5 h2 a5 h4 a6 e3 g5 h3 a7 Ba6 c6 Rh4 g6 Bc4 g7 Be7 f6 Na6 c7 Rc8 a8B Be2 f5 Rg4 Bd2 Nh6 Qc2 Bd1 g8B Rb8 c8R Nc7 Bb7 Na8 Ra4 Rg2 Ka1 b2+ Ka2 Rg4 Nc3 b1N Ka1 b3 Be1 Na3 f7+ Kf8 Be2 Bh4 Re4 Rg2 Rg4 Ke7 f6+ Kd6 Rg5 Qf8 Bh5 Rg4 Nce2 Rg2 Ba6 Rb4 Bb7 Rbg4 Bh7 Rb4 Bf5 Rgg4 Nf3 Rg2 Rf1 h1R Nfg1 h2 Bh3 Rbg4 Rff5 Rb4 Nf3 Rhg1 Re5 h1R Qf5 Rgg4 Qc2 R1g2 Nfg1 Qe7 f8B Rhh2 Bg7 Qf7 Rce8 Qf8 f7 Rh1 Bc3 Kc5 Rc8+ Kb5 Be1 Ka4 Bh8 Qe8 f8Q Qf7 Bg7 Qf1 Qf3 Rbc4 Qf2 Rc7 Re6 Rb4 Bd4 Rhh2 Re4 Rg4 Ree5 Rhg2
1B3B1b/B3b2k/2B1B2p/b3R2Q/N1b5/q1rRnKnR/qppN1pQ1/6r1 w - - 0 1 illegal: No proof kernel
Qq1R4/1p1nNKbn/B4B2/1NQr1nBp/kp1nBqR1/r3p2b/1Q2B3/8 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 h5 Kd3 d5 g4 Kd7 c4 Kc6 f4 e5 a4 h3 a5 h2 g5 Rh6 f6 Kc5 g6 Bd6 f7 Ra6 f8Q Bh3 g7 Re6 f5 Be7 f6 Qe8 f7 Reb6 Be2 Bg2 Qb3 Rf6 Nh3 Rab6 a6 Rfd6 a7 Rd7 a8Q Ra6 Bg5 Ra3 Rg1 h1N Nf4 Nf6 g8B Nh7 Ng6 Bh3 Rg4 Ng3 Nc3 Qd8 Rd1 e4+ Kd2 d3 Ke3 d4+ Kf4 d2 Ke5 Kc6 Ke6 Bf6 c5 Bg7 Qb2 Qc7 Ba6 d3 Qc8 e3 f8B Rd4 Bfe7 Nf5 Bef6 Rd7 Qf8 Qh2 Bf7 Qg3 Qe7 Qf2 Be8 Qg3 Kf7 Qf4 Rdg1 d1Q R1g2 Qg3 Rd2 Qf1 Rd1 d2 Be2 Kc7 c6 Kb6 c7 Rd6 Ba6 Ka5 Beb5 Qe5 Be2 Qff4 Nb5 Ka4 Rc1 Rdd3 Qc5 Rd6 Ne7 d1N Bc4 Nc3 Rd1 Ne2 c8B Nh4 Bd7 Nf5 Bc6 Rd8 Rd7 Ned4 Be2 Qd6 Be4 Qde5 Rc7 Rd5 Rc8 Nd7 Rd8 Qb8
5N2/B1Q1r1b1/nN2N1pK/k2Bn1pb/1N2N1Rp/1R3bRp/qnp5/4r2Q w - - 0 1 illegal: Other
N4Q2/kb3K2/N5p1/r2Npnqp/Bq4p1/1Q2b2n/RrN1pBRq/RN6 w - - 0 1 illegal: No proof kernel
qNr5/N1Qp4/N1R5/1BNQbpq1/p1KBn1p1/q2Nr2b/3pQ2R/1k4n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 h4 Ke5 c4 f5 b4 a5 e4 g5 c5 f3 h5 g3 h6 a4 c6 f2 b6 g2 h7 g4 c7 Bg7 b5 Nh6 b7 Qh4 b6 Qg5 Nd2 Qf6 Kc4 d3 Rh2 Ng8 Ne2 g1Q Nf4 Qh1 Nb3 Qg5 Nc5 Nf6 Be3 Re8 h8Q Nc6 b8N Nd4 b7 Ne2 Rc1 Ng1 Nba6 d2 b8N Qg2 Qf3 Bb7 c8N Re7 Bd3 f1Q Qd8 Qe1 Be2 Qeg3 Na7 Qh1 Qg2 Qh3 Bf2 Qa3 Bd4+ Kd6 Kb5 Bh6 Nce6 Qg7 Nbc6 Rc8 Ncb8 Qg6 Rc7 Bg7 Nec5 Qg5 Bc4 Ba8 Nfd3 Re8 Ka5 Re7 Bb5 Bb7 Qe2 Qf3 e5+ Kd5 e6 Re8 Bc6+ Kc4 e7 Qg2 Ne4 Kb3 Kb5 Kc2 Kc4 Ba8 Nec5 Kb1 Bb5 Qh1 Qe6 Bg2 Qc6 Bh3 Qg2 Rg8 e8Q Rf8 Qee4 Re8 Qee2 Re3 Qb7 Qf3 Qg8 Qc6 Qd5 Ne4 Qb6 Qa8 Rc6 Bh8 Qc7 Be5
n6k/1QN4r/1n1R4/1bb1p1B1/p1q1p1rR/3Rp1BB/pR1QK2N/1n1n1R2 w - - 0 1 illegal: No proof kernel
n2R2nN/5B2/r2nn2k/n4Rnb/1b5r/1p3qB1/RRRr2N1/1R3KQR w - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 f4 Kf7 d4 Kg7 g4 b5 f6+ Kh6 f7 e5 d6 c5 d5 c4 d7 h3 d6 a2 Qd5 c3 Qb3 h2 Qd1 e4 f5+ e3 f6 c2 Bh3 b4 Ba3 c1N Nd2 e2 Ndf3 Na6 Rb1 a1N Nh4 Ncb3 Ng6 Nbc5 Nf3 Ne6 Nfh4 Nb3 Ng2 Na5 Kf2 e1N Kf1 Qe8 d8R b3 d7 Nac7 Bd6 Nf3 Bg3 Bb4 f8R Nfg5 f7 Ra6 Qc1 Bb7 Rc8 Bf3 d8R Na8 Rc2 Qc6 Rfe8 Qb7 f8R Qc6 Rf5 Qc3 Rg1 h1N Ra2 Nf2 Rh1 Qc6 Re7 Qb7 Rc7 Ne4 Rcc2 Qf7 Rdd2 Nd6 Rcb2 Qb7 Qc5 Bd1 Qg1 Qf3+ Rf2 Nf6 Rc2 Rd8 Nh8 Ng8 Rcb2 Kg7 Rc2 h5 Rab2 h4 Ra2 Nh7 g5 Rd7 g6 Kh6 g7 Nhg5 Bg4 h3 Bh5 h2 Rcb2 Ndb7 Bf7 Rd2 Rc5 Nd6 Rcc2 Qe3 Rf5 Bh5 Bf2 Ne7 g8R Qf3 Re8 Ng8 Rd8 Qb7 Bg3 Qd5 Qa7 Qc6 Rg1 h1R Qe3 Rh2 Rh1 Rh4 Qg1 Qf3+
N2B4/1nB2q2/1n2Q3/1B1rR1BR/BBqq2B1/2rq4/k4bKq/1r1bNr1q w - - 0 1 illegal: No possible last move
3BBBrk/rQnRb3/1pbB2qN/2q3b1/bqB1n3/1B1R3K/5r1n/2B2N2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 g5 Kg2 c5 a4 f5 h4 Kf7 d4 Kg7 e4 b3 a5 b6 h5 c4 d6 b2 d5 c3 a6 g3 e5 c2 a7 f3+ Kh3 f2 d7 f4 e6 g2 e7 f3 e8B Nf6 d6 Ne4 Ra6 Qe7 Ne2 g1Q Ra3 Rg8 h6+ Kh8 h7 Bb7 d8B Na6 d7 Nc7 Nd2 b1B Nd4 Qb4 Bc4 f1N Be7 f2 d8B Bc6 Nf5 Nh2 Nh6 f1R Rd3 Rf2 Bd6 Be7 Qf3 Ba2 Nf1 Bb3 Qf7 Bba4 Qd5 Re2 Qf7 Qgc5 Rg1 Rf2 Qf3 Rb8 a8B Rb7 Qg2 Ra7 Bb7 Bcb5 Bbd5 Bc6 Bb3 Nc3 Bdc4 Ne4 Ba3 c1B Qf3 Kg7 h8B+ Kh7 Bf6 Bd2 Bc1 g4+ Kh4 g3 Kh3 g2 Bg7 Bf4 Bf8 Bfg5 Qf7+ Kh8 Qd5 Bcb5 Qb7 Bc6 Rh1 Ng4 Rh2 g1Q Rg2 Nh2 Rgg3 Bf4 Rg7 Qg6 Rf7 Bfg5 Rg7 Bef6 Rd7 Be7
4rB2/k3q1B1/Brr2bK1/n2n1N2/p2Bb1R1/2r1BB2/pNqR2r1/3qB2Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 e4 g5 d4 c5 b4 Kc7 h4 Kb7 b5 f5 d6 a5 h5 a3 d7 g3+ Kf3 a2 e5 a4 d5 c4 e6 c3 d6 g2 e7 c2 e8B Ne7 h6 Ra6 b6 Nbc6 h7 Ng6 Rh4 Nge7 Nd2 Na5 Ne2 g1Q Nd4 Nd5 Nc4 Be7 Be3 c1Q Bh5 Re8 h8B Bf6 Rg4 Qc2 Nb2 Qe7 d8B Bd7 Bc4 Bc6 d7 Ka8 b7+ Ka7 Qc1 Rb6 Bg7 Qgd1+ Be2 Bb5 Bc7 Bd3 d8B Rc6 Bd6 Be4+ Kf2 f3 Kg3 f2 Ba6 f1R b8B+ Ka8 Ba7 f4+ Kh3 f3 Nf5 f2 Bad4 Re1 Bb4 f1R B8b6 Rg1 B6c5 Rg2 Qb1 Ree2 Be1 Rd2 Qc1 Rd3 Rb1 Rc3 Bd6 Qd7 Bdf8 Qe7 Ra1 Rb6 Rb1 Ka7 Ra1 Qdd2 Qd1 Qdc1 Qf3 Q1d2 Rd1 Qdc1 Rd2 Q1d1 Qf1 Rc6 Rg3 Rc3 Bf3 Rc6 Kg4 Rc3 Kh5 g4 Rh3 g3 Qh1 Rcc8 Rh4 Rc6 Kg6 Re2 Bg5 g2 Bh5 Re3 Bf3 g1R Rg4 Rec3 Bge3 Rg2
4BBBb/3Bb3/3p3B/BbNn1rn1/1Q1KrN1q/p1Bb2kn/5R1b/2q1R3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Kd6 h4 Ke5 c4 f5 e4 g5 c5 a5 c6 d6 b6 f3 b7 g3+ Ke1 f4 Kd2 a4 Kd3 a3 c7 g4 h5 g2 h6 f2 h7 g3 b5 f3 b6 Bd7 c8B Nc6 b8B Qh4 b7 Nh6 Kc4 d3 Qd2 Ra5 Nc3 Ne7 Ba7 Nf7 Nh3 g1B b8B g2 Na4 Bh2 Qb4 g1B Bc7 d2 Ra2 d1N Bae3 Be8 Be2 f1B Bd3 Rb5 Ba5 f2 Be2 Rd5 Nc5 Rg8 Bcd2 Rg5 Rb2 Rf5 Bh6 Bc6 Be1 Ng5 h8B+ Bg7 Bd2 Bf6 B8g7 Be8 Bf8 Bd7 Kb3 Bb5 Bc4 Bd3 Ra2 f1Q Bc3+ Bd4 Rd2 Qf3 Re1 Nf2 Be6 Qff4 Bg8 Ba6 Bb5 Bh8 Bc6 Bab5 Ra2 Qc1 Rd2 Kf6 e5+ Kg6 e6 Kh5 Rde2 Kg4 Bd7 Kg3 Nf4 Nfh3 Ra2 Bdf6 Rf2 Nc8 e7 Nb6 e8B Rde5 Bd4 Be7 Ba1 Bc2+ Kc3 Bcd3+ Kd4 Nd5 Bc3 Re4#
r1B1rqBk/6n1/K1B4B/2Q1q1Bn/3Nbb1R/1B4pp/2r2B2/N2Rb1nr w - - 0 1 illegal: No proof kernel
1rrRb3/3Rp3/Bn2Qp1N/5K1n/3b1Rn1/kb1RN1B1/3bRr2/1qR1Rq2 w - - 0 1 illegal: No proof kernel
bRNB4/Bq2n3/2p3Q1/p3b1Bq/1nkBB1n1/1b1p2Rn/N3B3/K2B1rr1 w - - 0 1 illegal: No proof kernel
kN1N1r2/3bn3/B1rR1rq1/1B3pbr/rB1B3r/B3n1K1/B1p2R1p/3B1Q2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 c5 g4 Kc7 e4 b5 a4 Kb7 g5 h5 a5 f5 d6 b3 a6+ Ka7 g6 h3 d5 b2 e5 b4 d7 c4 g7 c3 e6 b3 e7 h4 e8B f3 d6 c2 Nd2 b1R Ne4 b2 Nf6 h2 Ne2 h3 Nf4 Rh6 Kg3 f2 Ne6 Ne7 g8B Qc7 d8B Qc6 d7 Rh4 Ba5 Bh6 d8B Nd7 Bb4 Ne5 Nd7 Ng4 Nb8 Bd7 Ra3 Be3 Rd3 Bg5 Rd6 Ne3 Bc4 Rh5 Rf1 h1R Bb5 Rh4 Bh5 Ra1 Qf3 b1R Bca3 Rb3 Bc7 Rc3 Nd8 Qb6 Qf4 Rc6 Bd1 Rh6 Ba2 Rf6 Re6 Rh2 Be5 Rh1 Bd4 Rh2 Re1 f1R Re2 Re1 Rd6 Reh1 Be6 Ra2 Qf1 Ra1 Rf2 Ra2 Bc1 Ra4 Bca3 Rg2+ Kf3 Rg4 Ba2 Rh4 Kg3 Be6 Nd7 Rac8 Nb8 Ka8 a7 Bd7 Nb7 Rch8 Nd8 Rhf8 Nf7 Kb7 a8B+ Ka7 Bb7 Rh5 Bc8 Ka8 Nd8 Rc4 Nf7 Rfh6 Rg6 Qd6+ Rf4 Rc6 Nd8 Qf6 Rf2 Qg7 Re6 Rhf6 Bca6 Qg6 Kf3 Rg1 Rd6 h2 Bf7 Rg4 Ba2 Re4 Kg3 Reh4
1r4B1/b1R1B1n1/1Br2bQ1/NB1qp1p1/2N1p2k/1Bp1qq1B/RB6/3bn1K1 w - - 0 1 illegal: No proof kernel
b7/p2RB1N1/q4rR1/b1N3B1/p2K1p1B/1rB1p1qB/bBr1Q1nk/n4B2 w - - 0 1 illegal: No proof kernel
N2BR3/1QRpr1QK/N1Q3R1/4bB2/2Rbb3/q2k3N/6qb/2nr2b1 w - - 0 1 legal: proof: e4 a5 b4 b5 bxa5 h5 g4 c5 gxh5 b4 d4 cxd4 c3 f5 exf5 bxc3 a3 Nc6 a6 Nb4 axb4 Bb7 b5 Bc8 b6 Rb8 b7 Ra8 b8Q Bb7 Qc8 Bxc8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 Kg6 e5 f4 c2 h4 d3 f6 d2 f5 Kd4 a7 e4 h6 e3 h7 e2 f7 e1B h5 Bf2 f6 Bc5 f8Q Ba3 h6 Ke3 f7 Bb2 Qb4 Qf8 Ra4 Be5 Bd3 Bb7 Nh3 Re8 a8N Re7 Bf5 Be4 Rg1 Kd3 Qb7 Nf6 Nc3 Ng4 Nd5 Bfd4 Ndc7 Nf2 Rc4 Bh2 Ba3 c1B Qa4 d1Q Qac6 Qe2 Na6 Bcb2 Bc5 Bde5 Bb6 Bbd4 Bd8 Rg8 h8R Qb2 Kh7 g5 Bg6 g4 Bf5 g3 Rgc1 Rg4 Rg8 g2 Rg6 g1B R1c2 Re6 Rc1 Qfa3 f8Q Re7+ Qg7 Qe2 Kg8 Qf1 h7 Qg2 h8R Rg3 Kh7 Re3 Rb4 Re1 Rbc4 Rd1 Rg8 Ke2 Re8 Nd3 Qcc8 Kd2 Rc7 Ke2 R1c4 Nc1 Qc6 Kd2 Q8b7 Kd3
3Nr3/1r2rqBQ/1R5n/Q2q2kN/4r1q1/N2b1B2/QRn2KB1/n1r4B w - - 0 1 legal: proof: b4 a5 bxa5 e5 f4 exf4 h4 b5 c4 g5 a6 d5 cxd5 gxh4 a3 Bxa3 a7 b4 Rxa3 Bg4 Ra1 Bc8 d4 Ke7 g4 Kf6 e4 h5 d6 c5 d5 c4 d7 b3 d6 h3 Nd2 f3 Bg2 h4 Bb2+ c3 Ra5 h2 Rg5 h3 Qc2 f2+ Kf1 Nc6 Nb1 Nd4 Qd2 c2 Ne2 c1N Rb5 Ba6 Ng3 Qc8 Na3 Rh7 d8Q+ Kg6 e5 f5 d7 f4 g5 Re7 Bb7 Rb8 Qc3 Nh6 Nh5 Ra8 Ba1 b2 Qh8 b1R Qa5 Kf5 g6 Kg5 g7 Nc2 Qh7 Nb3+ Ke2 f1R Bc6 Rb8 a8B Rfe1+ Kf3 Re2 Rd1 h1R Rd6 h2 g8Q+ Rg7 Rb7 Rhc1 e6+ Re5 e7 Bd3 Bb2 Nba1 Qa2 Rf7 e8B Re7 Kg2 f3+ Kg3 h1Q Bf7 f2 Bfd5 R5e6 Bg7 f1Q Rb4 Qd1 Kf2 Qg8 Rb5 Rbe8 d8N Qg4 Rb3 Qhh3 Bh1+ Re5 Re6 Qf7+ Rf6 Qge6 Bcg2 Qhg4 Baf3 Qd5 Rb7 Rb4 Rb5 Rb7 Rfb6 Rbe4 Rb2 R5e7
Q1B2B1r/2nR3r/1N2r3/1R2N2q/5Nr1/1Kn2r1q/1R1rR3/Qr1k1nQ1 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 d4 cxd4 h4 gxh4 f4 e5 b6 exf4 b7 Qg5 b5 Qc5 b6 Nc6 b8N Ba6 Rxa6 Qg5 b7 Ba3 Rxa3 Qf6 Ra1 Qd8 Kd2 Ke7 c4 Kd6 Kc2 Ke5 g4 Ke4 c5 f5 g5 a5 e3 h5 g6 d5 g7 d3+ Kc3 d4+ Kc4 d2 Ne2 Kf3 e4 a4 e5 a3 e6 d3 e7 a2 e8Q h3 Qb3 d1R Qf7 h4 Bb2 h2 Be5 h3 Qa4 d2 Qe8 Na7 c6 Qa5 c7 Re1 c8R d1R Qab5 Nf6 g8Q Ne4 Qc5 Nc3 Qgg1 Rd2 Kb3 Nab5 Qb6 Nc7 Qbd4 Rh4 Qh8 Rg4 Na3 Ra7 Rd1 a1R Nc6 Rb1+ Kc4 Ra8 Bg7 Qe5 b8R Qe8 Qb6 Qh5 Re8 Ra7 Qa5 Ra8 Nc1 Re6 Nd3 Ra7 Bg2+ Ke2 Rb2 f3+ Kb3 f2 Bf8 f1N Nce5 f4 Nac4 f3 Qa1 f2 Nb6 Ra8 Be4 Rd8 Bh7 Rd7 Be4 Rh7 Qg8 Rh8 Bb7 Rh7 Bc8 Rh8 Qg2 Rh7 Rg1 h1Q Qga8 h2 Re7 Qg2 Rd7 Qf3 Rg2 h1R Rd5 Rhh4 Rb5 Qh3 Rh2 Re4 Qg1 Reg4 Rc1 Rh8 Rc2 Kd1 Nf4 Qg6 Rg2 R4h7 Rg3 Qgh5 Rd3 Rh4 Rd7 Rg4 Qgg2 Ng3 Qh2 f1R Qhg2 Rf3 Qh1+ Nf1 Qg1 Rd5 Re2 Rd2
k2N3Q/3qr2N/1qb5/1pq3B1/2n2rqb/2R2BRQ/2b1RRK1/1Bn4N w - - 0 1 legal: proof: c4 c5 d4 cxd4 g4 h5 gxh5 d5 e4 f5 exf5 a5 b4 axb4 cxd5 e6 Kd2 exd5 Ke1 Qb6 Bd2 Qf6 Bc1 Qd8 f4 Kd7 Kf2 Kc7 a4 g5 h4 b5 f6 Kb7 h6 d3 a5 d2 f7 d4 f5 g4 h5 d3 f6 g3+ Kg2 b3 h7 b2 h6 Bg7 f8R Bg4 a6+ Ka7 f7 Nd7 Rh2 Be6 Ra3 Bd5+ Nf3 Ne7 Qb3 d1Q Rg8 d2 f8R Ng6 Bd3 Bf6 Nc3 b1B Ne4 Bc6 Nf2 Qb6 Nh1 Nge5 Re8 Nc4 Re2 Qc5 Rg5 Rhd8 h8Q Bc2 h7 Re8 Rf2 Kb8 a7+ Kb7 Re2 Nde5 Bf5 Rad8 a8B+ Kb8 Qd3 Re7 Rc3 Rf8 Rg8 Ka7 Be4 Bh4 Ng5 Qb6 Qd7+ Kb8 Qh3 Nd3 Rf2 Qg4 Bf3 Be8 Bae4 d1Q Bd2 Nc1 Re2 Ba4 Bb1 Bc6 Qd4 Qb3 Kg1 g2 h8N Qf5 Nh7 Qa3 Nf7 Qac5 Nd8 Qd7 Rg4 Bc2 Bg5 Ne3 Qg7 Ka8 Qg8 Rf4 Qh8 Qcf5 Rg3 Qg4 Kf2 Nf1+ Ke1 g1Q Rg2 Qge3 Rh2 Nd2 Rf2 Nc4 Kf1 Qed4 Kg2 Qdc5
1B1Q4/n4q2/rrN1k3/1BQR1b2/K2R1r2/2pB1nbq/3pNr2/1QN3N1 w - - 0 1 illegal: No possible last move
2k4n/R2N3q/1q2N3/pRb1K1bN/2qr4/pQ3B2/RrB1QbN1/5B1q w - - 0 1 legal: proof: c4 a5 b4 e5 a4 d5 cxd5 b5 f4 bxa4 b5 exf4 Nf3 Bb7 Ng1 Ba6 bxa6 f5 g4 f3 Na3 f4 Bb2 h6 Bf6 Nc6 Bg5 Nd4 Nb1 Nf5 gxf5 hxg5 Kf2 Kd7 e4 c5 d4 g4 h4 g5 e5 a3 f6 c4 d6 c3 a7 c2 e6+ Kc8 h5 c1Q d5 Ne7 d7+ Kc7 h6 Qc6 f7 Qb7 d6+ Kb6 h7 Bh6 f8N Kc6 Nc3 Rb8 a8B Qc8 d8N+ Kb6 d7 Kc7 Rh5 Ng6 e7 Qb5 e8B Qcb7 Nge2 Q5b6+ Qd4 Rg8 Nd1 Nh8 Ng3 Rg6 Ne3 Rd6 Qd1 Rd4 Ra2 Q7a7 Ke1 f2+ Ke2 Qab7 Ng2 f3+ Ke3 Q7a7 Bc4 f1Q Qb3 f2 Bf3 Qh1 Bg6 f1Q Bc2 Rb7 Bb5 Qc4 Nde6+ Kb8 Ne2 g3 Ne2f4 g4 d8Q+ Qc8 Bbd3 Bg5 Qe7 Qc4 Nd7+ Kc8 Bf1 Rb8 Nh4 g2 Qe8+ Bd8 Rb5 g3 Nh5 Rb7 Qg6 Rb8 Qe4 g1B+ Kf4 g2 Ke5 Bf2 Qe2 g1B Ng2 Bg5 Ndf6 Qe7 Nd7 Ng6+ Kf5 Qg7 h8R+ Qg8 Rh7 Nh8 Rf7 Qh7+ Ke5 Rd1 Bd5 Bc5 Bf3 Bgf2 Ndf8 Rd4 Ra7 Rb7 Nd7 Qg1 Qb4 Qc6 Rb6 Qh1 Qc3 Rb8 Rb1 Rb4 Qcd3 Qb6 Qc3 Ra4 Rb5 Rb4 Qce3 Rb1 Qb3 Rb2
B2Q3Q/1q2pQ2/k1NRR3/2pK1p1q/N2b2b1/1nN1qbB1/1n3n2/BN6 w - - 0 1 legal: proof: e4 b5 c4 a5 d4 g5 b4 d5 h4 dxc4 d5 gxh4 d6 axb4 a4 Ra5 axb5 Ra2 f4 h5 g4 Rh6 f5 Rd2 g5 Rg6 fxg6 Rd5 exd5 f5 Ra2 Bd7 Ra1 Bc8 Ke2 Kd7 Ke3 h3 Kd4 c3 g7 c2 g6 h2 b6 b3 b7 h4 Ne2 b2 Ra4 h3 Bg2 Nf6 g8Q Bg7 Nec3 Na6 b8B Nb4 Re1 h1Q Qh8 h2 Re6 Nd3 Ra6 Ne4+ Kc4 Be5 g7 Bd4 g8Q Nef2 Qf7 Bb7 Bg5 Kc8 Bf6 Bc6 d7+ Kb7 d6 Bf3 Rc6 Be2 Kd5 c1N Be5 Qg1 Bf6 Qe8 d8N+ Ka8 d7 h1B Qd2 Nb3 Nb7 Bg4 d8N Qe1 Bf3 Qe3 Rcd6 Bg2 Be4 Bh1 Nc5 Bhf3 N5a4 c5 Nc6 Kb7 Rd7+ Ka6 Bg3 Qd8 Rdd6 Qe8 Qff8 Qg6 Qf7 Qh5 Kc4 Qh7 Nb5 Ne1 Qa5+ Kb7 Qc7+ Ka6 Qcd8 Ned3 Nd2 b1Q Bd5 Qb2 Nb1 Be5 Bg7 Nd4 Nca7+ Nc6 Bf6 Qh5 Be4 Bf4 Bd4 Be5 Bc3 Bd4 Bd5 Qbe2 Ba1 Qb2 N5c3 Qb6 Be4 Na5+ Kd5 Nb3 Kc4 Qeg5 Ba8 Qe3 Nc6 Qb8 Ne2 Qb7 Nec3 Be2 Kd5 Nb2 Bh4 Bd1 Bg3 Bdf3+
3n4/RNn2n2/nK3p1n/6Qp/3b1RQ1/BQ1B4/1QNprbR1/1B3kn1 w - - 0 1 legal: proof: d4 a5 b4 c5 f4 cxd4 a4 b5 Nd2 e5 Nb1 exf4 Qd2 Qg5 Qd3 axb4 Qd1 b3 Bb2 b4 Bc1 Qb5 axb5 Ra6 Qd3 Ra5 Qd1 Ra8 g4 f6 g5 Ra6 g6 Re6 Qd2 Re7 Qd1 Rf7 gxf7+ Ke7 h3 g5 Ra3 g4 Qd3 g3 Qd1 Bb7 Ra8 Bf3 Ra1 Bg4 hxg4 Kd6 Rh5 Ke6 Rh1 Ke7 Kd2 Kd6 Kd3 Kd5 e3 h5 b6 f3 g5 b2 c3 b3 g6 g2 b7 f2 g7 Nh6 g8B Bc5 f8R+ Nf7 Ne2 g1B Ng3 Nc6 b8Q Nd8 Na3 b1N Bh7 b2 Rg8 Nd2 Nf5 b1N Nd6 Nb3 Rg2 N1d2 Nb7 Re8 Nc2 Nf3 Ra7 d6 Be2 f1N Ba3 Ng3 Rh4 Bf2 Rf4 Ng1 e4+ Ke5 Kc4 d3 Kb5 d2 c4 Nf5 Bf1 Bcd4 c5 N5h6 c6 Nc5 c7 d5 Kb6 Re7 Qc1 d1N Qb2 Nc3 Bd3 Nb5 c8Q+ Nc7 Qb3 Bb2 Qg4 d4 Bc4 d3 Ba6 d2 Bd3 Nc6 Qbg8 Bbd4 Q8g5+ Nf5 Qb2 Ncd8 Bg6 Ke6 e5 Kd5 Bh7 N5h6 Bhf5 Re8 e6 Ke5 e7 Kd5 Na1 Ke5 Bb1 Kd5 Nc2 Kc4 Bd7 Kd3 Be6 Nf3 Bf5+ Ke2 Be4 Kf1 Bg6 Rf8 e8Q Ng1 Qee6 Re8 Qeb3 Re2 Bd3 N5a6+
kb1KRRr1/r5B1/2pq3n/5b2/p1R1Np2/4p1N1/R1Q1N1Q1/BrQ3r1 w - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 gxh4 c4 e6 cxd5 Bb7 d6 Bc8 e4 Nh6 d5 exd5 e5 Bh3 Bd3 Bc8 Be4 Ng8 f4 Nc6 e6 Ne5 fxe5 dxe4 Ke2 f5 Ke3 a5 Kf4 h5 g4 e3 b4 h3 e7 Kd7 Kg5 h2 b6 Kc6 b5+ Kb7 e6 c6 d7 a4 Qc2 h4 Nc3 f4 Nge2 h3 Ra2 Ra5 Ne4 Ra6 Bb2 Rh4 Rc1 h1R N4g3 h2 Ba1 Qc7 e8R Rh8 d8Q Rh4 e7 Qb8 Qdd2 Ka8 b7+ Ka7 Qdd1 Qa8 b8R Nh6 Kf6 Bb7 g5 Rb6 g6 Ra6 g7 Nf5 g8Q Re1 Rbd8 Qb8 b6+ Ka8 Qgd5 h1R Qg2 Bc8 b7+ Ka7 Qdd2 Qc7 b8B+ Ka8 Qdd1 Qd7 Bbe5 Ra7 Kf7 Qd2 Bg7 Nh6+ Kf6 R4h2 Rd5 Rb7 Qc5 Ra7 Rf5 Rh3 Rd8 Qd7 e8N Nf7 Nd6 Rh8 Re8 Nh6 Nde4 Rhg1 Qa3 Qd5 Rc4 Rg8 Qc2 Bd6 Qab2 Rb1 Qbc1 Bc7 Ke7 Qd2 Rff8 Bb8+ Kf6 Bd7 Ke7 Qd6+ Kd8 Bf5+
4Nn2/BQ1BQ1b1/1R1pnqB1/p2p1pN1/3bR3/2Q3K1/k1N1Nq2/n6b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 d5 c6 Qd2 cxd5 Qd4 Bc5 Qd1 Bf8 b4 g5 b6 a5 b5 Rh3 b7 Re3 Bxe3 Ra6 Bc1 Re6 b6 Re3 Bxe3 Qc7 Bc1 Qd8 Kf2 Ke7 c4 Ke6 e4 f3 h4 f6 h5 d6 e5 Be7 c5 Bf8 c6 Nd7 b8Q Bg7 b7 Nf8 h6 Ne7 h7 Neg6 h8N Nf4 Kg3 f2 Bd3 f1Q Bg6 f5 c7 Qf6 Ba3 Bd7 Bc5 Ba4 Qe2 Bc2 Qc4 Be4 Rh4 Bh1 Na3 Kd7 c8B+ Kc6 Qe4 N4e6 Nc2 Kb5 Qe3 Kc4 Qa7 Qe7 b8Q Qf6 Qc1 Kc3 Bb6 Kb3 Rb1+ Ka2 Qf7 Nc5 e6 Nb3 e7 Na1 e8N Qh3+ Kf2 g3+ Ke2 g4 Qbb7 g2 Kf2 Qd3 Ne2 g1N Qfe7 Nf3 Bd7 Ng5 Nf7 Nge6 Ba7 Qa6 Rb6 g3+ Ke3 g2 Kf3 g1B+ Kg3 Bd4 Re4 Qb5 Ng5 Qb1 Qd2 Qf1 Qc3 Qf2+
1qq5/pR2B1R1/2Qpk3/R3p3/3pKQR1/bNB3B1/2p4b/q2Qrb1N w - - 0 1 legal: proof: c4 b5 b4 e5 a4 bxa4 d4 exd4 b5 Na6 b6 Qe7 Qd3 Qg5 Qd1 Qd8 Nd2 c5 Nb1 Rb8 Na3 Rb7 Nb1 Rc7 Bh6 Rc6 Bg5 Bb7 Bc1 Bc8 e4 Rg6 Bh6 Rg3 Bf4 Rb3 Bc1 Rb5 cxb5 Qe7 Bc4 Qh4 Bf1 Qd8 h4 g5 g4 Ke7 f4 Bg7 e5 Nh6 e6 Nc7 f5 Be5 Bc4 Ke8 e7 Bg7 Be6 Bf8 Bb3 Ne6 f6 Nf5 gxf5 g4 Ba2 Ng5 Be6 fxe6 hxg5 Kf7 Kd2 h5 Kd3 h4 e8Q+ Kg8 g6 g3 g7 h3 f7+ Kh7 g8R a3 f6 g2 b7 a2 b8R h2 b6 c4+ Ke4 c3 b7 c2 Nh3 g1B Bd2 Be7 f8B Bb4 f7 Ba3 Be7 Qc7 f8Q Qd6 Ra8 Qb8 Rg4 Rg8 Qff3 Rg5 Ba5 Kg7 Nd2 Rg6 Rb1 a1Q Nb3 Qc3 Nf2 Qcc7 Bc3 d6 Qc6 e5 Qf4 Be6 Be1 Qbc8 b8B Bc4 Ra1 Qb6 Bc7 Qbb8 Bca5 Be2 Bac3 Rg5 Qe3 Kf7 Qf4+ Ke6 Ra2 Qbc7 Rb8 Rh5 Rb7 Q7b8 Ra1 Rh3 Nd3 Rf3 Bg3 Rf1 Nf2 Re1 Rg7 Bb2 Ra5 Ba3 Nd3 Bf2 Rg1 h1Q+ Rg2 Bg1 Nf2 Bh2 Qh4 Qf1 Nh1 Qf6 Rg4 Qh6 Rg7 Qc1 Qf4 Qb1 Bgh4 Qc1 R2g4 Qa1 Bg3 Bf1+
Q5Rr/N1n2b1k/2Nn1q1B/K3BrR1/Rn3r1b/1B1qQnR1/n7/1q5Q w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 c5 d4 f5 Kd2 Kf7 g4 Kg7 b6 h5 e5 b3 Kc3 h3 d6 f3 g5 h2 e6 b2 d7 h4 g6 f2 d5 c4 d6 h3 Kb4 c3 e7 c2 e8R f4 b7 f3 Be3 c1N Nc3 b1N Bf4 Be7 Be3 Bh4 Rf8 Qf6 d8Q Na6+ Ka5 Na2 b8B Ne7 d7 Nf5 Bc4 f1Q Qb6 f2 d8Q Be6 Be5 Nd6 Nge2 Nd2 Rg1 h1Q Bb3 h2 Nb5 Nc7+ Na7 Nf3 Nd4 Bf7 Rg5 Qd3 Nc6 f1R Rg8+ Kh6 g7 Kh7 B3f4 Rb8 Qc5 Rb4 Qa8 Rd4 Bc1 Rf4 Qe3 Qg1 Bd2 h1N Qc1 Nf2 Qb1 Nb4 Ra4 Nfe4 Qa1 Nc3 Rg3 Rf2 Qc1 Qh2 Qh1 Qg1 Qh2 Qgb1 Qe2 Ne1 Re8 Rc4 Qh1 Rd4 Bh6 Rf5 Qe3 Rdf4 Re6 Qg5 g8R Nf3 Reg6 Qf6 R6g5 Nca2
4R1R1/BQ1R4/5r1r/nqRN1n1q/k4b1Q/B4B1Q/1qrb2n1/r2Kb2N w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 e4 d5 b4 Kd7 c4 h5 c5 a5 g5 f5 g6 d3 e5 d2+ Ke2 a4 b6 Kc6 e6 Kb5 e7 h4 e8R d4 b7 a3 g7 a2 c6 h3 c7 h2 c8R d3+ Kf3 f4 Re2 Qa5 Rc7 Rh6 Bb2 Ne7 g8Q Nbc6 b8B Nf5 Rd7 Bd6 Qdb3 d1R Qbe6 d2 Nh3 g1B Qb3 g2 Qg4 Be3 Nf2 g1B Ba3 Rc1 Bg2 d1N Ba7 Bd2 Re8 Rc2 Ke2 Nde3 Bf3 Ng2 Qh4 Bc7 Qe6 Ka4 Kd1 Qb5 Qe3 Na5 Nc3+ Kb3 Rc1 a1Q Rg8 Qb2 Nd5+ Ka4 Qd3 Rf8 Qc3 Rff6 Qe3 Qd3 b5 Be5 b6 Qdb5 b7 Bc7 Ng4 Bf2 b8Q Bfe1 Qb7 Be5 Rf1 h1Q Nf2 Qh3 Nh1 Qg4 Rf8 Qh5 Re8 Bb8 Rg1 Bc7 Bg4 f3 Qd3 f2 Qdh3 f1R Bf3+ Nf4 Rgg8 Bb8 Bg4 Ng2 Bf3+ Bbf4 Rb1 Qd4 Rb3 Qdb4 Rc3 Qb2 Rc5 Bg3+ Re1 Rf2 Ree8 Re2 Rg6 Re3 Rgg8 Bge1 Bb4 Rd3 Be2 Ra3 Bf3 Ra2 Ba3 Ra1#
3bn1Qn/R2N1B2/B1nBr1rR/1b5Q/K1b5/2rBq3/R3q2N/rQ4qk w - - 0 1 illegal: No possible last move
1QB1Q3/n2K1n1n/B2NRqr1/3k1qR1/bbr1N3/1NB4Q/b1B3n1/4qr2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 c5 g4 f3 b6 b3 b7 b2 g5 h3 g6 c4 g7 h2 Nc3 b1B+ Qd3 h4 Ra6+ Nc6 Bb2 f2 Nf3 h3 Rg1 h1Q Rg5 f5+ Kf4 h2 e4 Rh7 Nd2 Bd7 Nb3 Rh6 Qh3 Nf6 g8B Rc8 Bh7 Ba2 b8Q+ Rc7 Bd3 f1N Ba1 Rg6 e5+ Ke7 d6+ Ke6 Be2 Ne3 Ne4 Kd5 e6 c3 e7 c2 e8B c1N Bc3 Na7 Bd3 Ba4 d7 Bb4 Re6 Qe7 d8N Qe1 Ba6 h1Q Nf7 Rc4 Nfd6 Qf7 Bd7 Qhf1+ Nf2 Qd3 Nfe4 Qc2 Bdc8 Nd3+ Kf3 Ne5+ Kf4 N5g4 Rh5 Nh6 Rg5 Kc6 Ke5 f4 Re8 Qf8 Ke6 Qh8 Ke7 f3 Kd8 Qg7 Re6 Nf7+ Ke7 Rh6 Bf5 Nh7 Ke8 Kd5+ Ke7 Rc6 Kd7 f2 Ng3 f1R Nb5 Nd1 Rd6+ Kc4 d5 Qce2 Bc2 Ba3 Ne4 Qg4+ Ke8 Qf5 Rf6 Rg6 d6 Bb4 d7 Rc5 d8Q Ne3 Re6 Ng2 Kd7 Kd5 Qe8 Rc6 Nbd6 Qf6 Be2 Rc5+ Bb5 Rc6 Bba6 Rc4+
nQnbB3/2B1R3/3NQ1Nq/2n1bQ1b/rBn1R2n/8/k1nN4/1rQ2Kq1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Ke7 d4 Kd6 g4 h5 g5 f5 g6 c5 b6 h3 g7 h2 b7 f3 Qb3 f4 Bg2 c4 Ba3 f2+ Kf1 c3 Bh3 c2 Bb2 c1B Nf3 h4 Qa3 Be7 Qe3 b3 Kg2 f1N Rg1 h1Q+ Kf2 Nd2 Qe2 Na6 b8B+ Nc7 Ng5 f3 Qc4 Ra4 Rg4 Qf8 Ne6 Bd8 Qc3 Ne7 g8Q Nc4 Nd2 Qh6 Nf4 Qg2+ Ke1 f2+ Ke2 Bf5 Ng6 f1N+ Ke1 Nc8 Ba3+ Rb4 Qc2 Bb2 Qc1 Qg1 Qf7 Be6 Qf5 Nfe3+ Ke2 Nc2 e5+ Kd7 d6 Kc6 d7 Kd5 Ra2 Na8 Bc7 Bf7 Re4 Ra4 Bb4 Rh7 Bg4 h3 Bh5 h2 Ra1 h1N e6+ Ne5 e7 Nf2 e8N Nd3 Ra3 Nc5 Nd6 Ba1 Ra2 b2 Ra3 b1N Rae3 Nba3 Qe6+ Kc6 Qf5 Nf3 Re7 Qg3 R3e4 Nc4 Kf1 Qh2 Ne8 Kb5 d5 Bb2 d6 Be5 Nf4 Nb2 Qa1 Qe6 Bca5 Bc7 d8Q Bg6 d7 Qg3 Ke2 Bf7 Bg6 Rh1 Bh5 Qh6 Qa3 Ncb6 Qb8 Rb1 d8Q Nh4 Qd5 Qg1 Qde6 Bd8 Bg6 Nb7 Bh5 Nc8 Bb6 Nc5 Nd6+ Kc6 Bc7 Bg6 Bba5 Nc4 Qc1 Be8 Nb7+ Kb5 Bc3 Ra2 Nd6+ Ka4 Bb4 Ra3 Nf1 Kb3 Nd2+ Ka2 Bf7 Qe3+ Kf1 Ra4 Bg6 Bf7 Bh5 Bg8 Be8 Bf7 Qe1 Bh5 Qc1 Qg3 Ng6 Qg1+
rB3bQ1/qrQ4R/RN2b2r/1B3bQN/1n6/2n2NnQ/1kBb4/2bK3n w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 e4 Kd7 d4 Kd6 h4 f5 h5 c5 b6 g5 h6 b3 b7 g3 h7 c4 Bd3 c3 Nh3 b2 Rh2 c2 Ke2 f3+ Ke1 f2+ Kd2 f1N+ Ke2 f4 Ra2 g2 Nd2 g1B Ra6+ Nc6 b8N b1B Nf3 g4 Nd7 g3 Qd2 g2 Nb6 Nge7 Ba3+ Nb4 e5+ Kc7 d6+ Kc6 e6 c1B d5+ Kc5 d7 Be3 d6 g1R Be4 Qc7 d8Q Rg7 d7 Qa7 Kd1 Nd5 e7 Ng3 e8B Nh1 Bc2 Ba2 Qd3 Bed2 Qg5 Bb3 d8Q Bf5 Bb2 Rb7 Be5 Ba2 Bb5 Bb3 Ne1 f3 Nf4 f2 Qh3 f1N Nh5 Nfg3 Bb8 Kd4 Nf3+ Kc3 Qd6 Kb2 Qc7 Rg8 h8Q+ Rg7 Qhh6 Rg6 Qhh7 Rh6 Qhf7 Na2 Qfg8 Ndb4 Re2 Bc4 Re7 Bce6 Rh7 Nc3+
r2BQQRB/q3Bbr1/2r1RNb1/2N1N3/4q2K/1Rr1r1b1/2k2B1b/n2n4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 Kd6 d4 g5 e4 f5 b6 c5 b5 a5 b7 c4 h5 f4 b6 g4 h6 f3 h7 a4 Ra2 c3 Qd2 c2 Qd1 a3 Rh5 f2+ Ke2 f1B+ Ke3 Be6 Kf4 Bf7 Rh3 Nd7 b8R Qe8 Kg5 Nc5 b7 Nb3 Qe1 Ne7 Ra1 a2 Nf3 g1B Kh4 g2 Bb2 c1R Nbd2 g3 Ne5 Bd3 Qe3 Rc3 Re1 Rg8 h8B Na1 Nb3 Bh2 Nc5 g1Q Rc8 g2 b8N Bc2 Qf3 Rg3 Nbd7 Qf2 Nf6 g1R Bc1 Bd3 Be3 Bh6 Rb8 Qc6 Rg8 Bf4 Re2 Qa4 Re1 Qg2 Bf2 Qa7 Re3 Rg7 Rg3 Re1 Rh3 Kc7 d6+ Kb6 d7 Ka5 d8B+ Kb4 d5 Bb1 d6 Nd5 Re2 Ne3 d7 Nd1 Be7 Rc8 d8B Rc6 Re3 Ka3 Rg3 Kb2 Rg6 Kc2 Rh6 Rc4 Rb3 Re3 Qg3 Rh7 Qg7 Rcc3 Qf8 Qg6 Nh5 Qg2 Re6 Rg7 Nf6 Qf3 Ned7 Qh1 e5 Qg2 Rd6 Qf3 e6 Qe4 Ne5 Qd3 Nc4 Qd7 Na4 Kc1 Nh5 Nc2 Bf6 a1R Nc5 Ra8 e7 Na1 e8Q Qa7 Re6 Qd4 Bfe7 Bbg6 Ne5 Kc2 Nf6 Qb4 Neg4 Qe4 Ne5 Bfg3+
K4r1R/RrnN1n2/3Q1r2/b1QrqQq1/1N5B/k4nN1/1q2Rq1B/5Rb1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 h4 Kb4 Kd5 a5 e4 g5 c4 g3 b6 g2 h5 f2 e5 f1Q b3 f3 c5 a4 c6 f2 b7 a3 f6 d3 h6 a2 h7 d2 f7 g4 c7 g3 c8Q Ra7 e6 Nh6 e7 Na6 b8B Nc7+ Kd6 Qe2 Nc3 f1Q Qc2 d1R+ Bd2 Bg7 e8R Qg5 f8Q Qee1 Qf6 Rf8 Nge2 g1N h8R g2 Qcf5 Nf3 Qe7 Bd4 Qee5 Qeg3 Be1 Rd3 Re6 Ne8+ Kd5 d6 Kc6 d5 Re7 Q3f4 Bh4 Qf2 Rhf1 g1B Qec7 Ra6+ Kb7 Raf6 Ka8 Bb6 Q7d8 Qc1 Bh2 d4 Ng3 Nf7 Re2 Rd2 Qc6 d3 Qdd7 Rb2 Qdd6+ Qc5 Qcd5 d2 Qd5e5 d1R Nd5+ Ka3 b4 Qf2 b5+ Kb3 Qd4 Qcf4 Q4c5 Qe5 Nb4 Bd8 b6 Rd5 Nc2 Bc7 b7 Ka4 b8N Rb7 Rab1 a1Q Nd7 Qab2 Ra1+ Kb3 Ra6 Ba5 Nb4 Ka3 Ra7 Nc7+
1nr4Q/b1q5/1Q4K1/BRN2n2/2B1b2b/1q4NR/N2q1Bk1/qNn1rRb1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 d4 Kd6 e4 c5 h4 g5 b6 f5 b7 b3 h5 g3+ Kf3 g2 h6 g4+ Kf2 f3 Kg3 c4 Kf4 f2 h7 c3 Be3 b2 Rh3 c2 Ne2 c1N Qb3 g1B Ng3 Nh6 Bc4 f1Q+ Bf2 Qc7 Kg5 f4 Kg6 f3 Qb5 Bd7 Qb6+ Bc6 Ra5 Be7 Rb5 Re8 h8Q Qg2 e5+ Kd7 d6 Nf5 d5 Bh4 Nh1 g3 e6+ Kd8 d7 Ke7 d8N Kd6 e7 Ra1 Qg8 Ke5 d6+ Ke4 Ne6 Rc8 e8R Qh2 d7 g2 d8N Qhf4 Qf8 Qd2 Nc5+ Kf4 Re5 Be4 Qh8 Kg4 Nc6 Kf4 Bd4 f2 Ng3 Kf3 Nb4 f1Q Bf2 Qfd1 Na2 Qb3 Be1 Be3 Bf2 g1B Re8 Kg2 Rf8 Nc6 b8B Bd4 Ba7 Nb8 Qc6 Be3 Bb6 Bd4 Ba5 Be3 Nbc3 b1Q Qb6 Q1b2 Rf6 Rb1 Rf7 Qa1 Rf8 Nd3 Rf7 Re1 Nb1 Nc1 Rh1 Bh2 Rh7 Bd4 Rf1 Bg1 Rh5 Bg5 Rh1 Bh4 Rh3 Qdd1 Qe6 Be3 Nd7 Ba7 Nc5 Qe2 Qb6 Qd2
1q1q3N/p1NQ1Q2/2Bn1B1r/R1B1b2r/1qb1Bk2/Kn5n/5N1R/3br2R w - - 0 1 legal: proof: b4 b5 f4 d5 a4 g5 h4 gxh4 c4 e5 cxd5 exf4 axb5 c5 Ra5 cxb4 Ra6 Qg5 Ra1 Qd8 e4 Ke7 g4 Kf6 d4 Kg5 Kd2 f5 Kc2 h5 Kb3 h3 d6 h4 d7 h2 e5 h3 d5 Nc6 d6 Nh6 e6 Nf7 b6 Rh5 b7 Bg7 b8R Be5 Ba3 f3 e7 f2 e8B f4 Bg2 f1B Nc3 f3 Nd5 f2 Nc7 Kf4 g5 Na5+ Ka2 Bb7 g6 Bf3 g7 Nb3 g8Q Bc4 Rc8 Bg4 Be4 f1R Qd4 Re1 Qd1 Nh6 Qf7+ Nf5 Qdd5 Bd1 Qc6 Qg5 d8N Rb8 d7 Rb6 Qcd5 Rbh6 Rb8 Qg3 Rb5 Qh4 Ra5 Qe7 Rc1 Qf6 Rc2 Nd6 Qh7 Qg5 Nf7 Qd8 Nh8 Qb8 Bb2 Qd8 Bd4 Qb8 Bc5 Qd8 Nf3 Qb8 Ng5 Qd8 Rg1 h1N Rh2 Nf2 Rgh1 Qb8 Bf5 Qd8 Qdf7 Qb8 Ne4 Qd8 Rg2 h2 Qhg7 Qb8 d8B Nh3 Bf6 Qd8 Bc6 Qb8 Rhg1 h1Q Nf2 Qh2 Rh1 Qd8 Bb1 Qg3 Rgh2 Qg4 Bf3 Qgc8 Qd7 Qb8 Qgf7 Nd4+ Kb2 b3 Ka3 b2 Bd3 b1Q Bc6 Q1b7 Bb1 Nb3 Bbe4 Qb4+
1QR1BnbN/1QK1N1Q1/2nn2b1/B1r4r/4bN1b/Nr2B1q1/2p2R2/b5k1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 d4 Kd6 e4 c5 h4 g5 b6 f5 b7 b3 h5 g3+ Kf3 g2 h6 g4+ Kf2 f3 Kg3 c4 Kf4 f2 h7 c3 Be2 f1N Rh2 b2 Qc2 g3 Bf3 Nc6 b8Q+ Qc7 Rh6+ Nf6 Qa4 Bg7 Rh5 Ra5 Ra2 Ne3 Nh3 g1R Qab5 g2 Na3 b1B Rf2 Be6 Q5b7 Nc4 Be3 Rc5 Rg5 Bf7 Bh5 Bg8 Be8 Nd7 Q8a7 Nf8 e5+ Ke7 d6+ Ke6 d7 Kd5 d8N Be4 Qab8 Nd6 e6 Rb1 e7 g1B Rgg2 Rb3 Rc2 Bf7 Rgf2 Bg6 Rc1 Bf6 Rcc2 Bh4 Q8a7 Rg8 h8N Qb8 Nb5 Kc4 d5 Kd3 Na3 Rg7 Rc1 Rh7 Rcc2 Rh5 Rc1 Na5 Ke5 Qc7 Nc6 f4+ Ng5 f3 Rcc2 Nh7 Ke6 Bh2 Nh3 Be5 Rc1 Qb8 Kd7 Bd4 Bf7 Qg8 e8Q Nf8+ Kc7 Bdf6 Qeb8 c2 Be8 Ba1 Rb1 Qe6 Rg1 Qe5 Rg5 Qg3 Re5 Rcb5 Ne7 Nc6 Rf5 Rc5 Rf4 Bef5 Rc4 Be6 Rc3+ Ke4 Nf4 Bg8 Rd2 f2 Re2 f1B Rf2 Nc8 d6 Bg2 d7 Nd6 d8B Bh1 Rh2 Kf3 Re2 Qg2 Rf2+ Kg3 Rc4 Kh2 Rc3 Kg1 Rc4 Rcb5 Qd4 Rbg5 Qg7 Rc5 Rc3 Nb4+ Kb6 Rce5 Rc8 Qg3 Bc7 Bhe4 Bd8 Nd5+ Kc6 Ref5 Bdb6 Nb4+ Kc7 Nc6 Ba5 Rc5
2n1rR2/nR6/qb1Q1r1b/r2NB3/k1qqN3/1q5B/N2p1Q2/1QqQKB2 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 c4 h5 b4 a5 e4 f5 c5 d5 g5 Kd7 e5 h4 g6 f4 b6 Kc6 e6 h3 e7 f3 e8N h2 b7 a4 g7 f2+ Kd2 d3 Qh5 Kb5 c6 a3 c7 a2 c8B Ka4 b5 d4 b6 Qd5 Bb2 Ra5 Ne2 g1B Nc7 g2 Ng3 Nc6 b8Q Qc4 b7 Nge7 g8Q Na7 Bh3 Nec8 Nd5 Bh6+ Kd1 d2 Qgf7 Re8 Ne4 Qc5 Qd6 Qc4 Bd3 f1R+ Ke2 Re6 b8Q Re8 Qff6 Bge3 Qf2 g1Q Qhf3 Qg7 Rg1 Qd7 Rg8 h1Q Rf8 Qdb5 Bc3 Qa6 Qb2 Qg1 Qh1 Qg7 Qc1 Qgb7 Qd1+ Qbb3 Bb2 Rg1 Bc3 Rg6 Kf1 Rf6 Be2 d3 Be5 Bc5 Nbc3+ Ka3 Rc1 a1Q Na2 Ka4 Rb1 Qad4 Qg1 Qbc2 Rb7 Bb6 Kg2 Q2b3 Bf1 Rf5 Qb1 d1Q Qh1 Qdc1 Kg3 Re6 Qhf3 Rf7 Qd1 Re8 Qe3 Rd7 Kf2 Rf7+ Ke1 Rf6 Qf2 d2+
2k3nQ/r1bRR2N/n1Nq1B1N/1p2n1b1/1Nq1n2Q/3B2Q1/2b1K1n1/1R2r3 w - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 f4 Kd7 d4 h5 g4 b5 f6 c5 f7 e5 d6 h3 f5 a2 f6 h4 d5 e4 g5 c4 g6 h2 g7 e3 Ne2 c3 Qb3 h3 Bb2 c2 Nd4 c1B Na3 e2 Rb1 a1Q Nac2 Ra7 Nc6 Bg5 Qg3 Qa2 N2b4 Qc4 Be5 Be7 f8Q Na6 f7 Rh5 Rg1 h1N Bf6 h2 Rg2 Nf2 Rg1 Nh6 Qh8 h1N g8N Ne4 Rg2 Bb7 f8N+ Kc8 Nh7 Nhf2 Rh2 Ba8 Rh3 Nfg4 d7+ Kb7 d6 Ne5 Rh2 Rh4 Rf2 Rh1 Rf4 Qc7 d8Q Qb6 d7 Bd6 Qe7 Bc7 d8R Rg1 Rd7 Kc8 Rf3 Qbc5 Re3 Qd6 Na5 Bd5 Nac6 Bf7 Rd3 Bg6 Re3 Nec5 Kf2 e1N Bd3 Ng2 Ke2 Rc1 Qe6 Ne4 Qeh3 Nf5 Qhh4 Ne7 Nh6+ Ng8 Rb3 Ra1 Rb1 Bh5+ Kf1 Bd1 Re1 Ba4 Ke2 Bc2 Kf1 Nf7 Rbd1 Nec5 Ree7 Ne4 Ke2 Ne5 Rh1 Rf1 Rg1 Rf3 Rc1 Rf1 Rb1 Re1+
2Q2Bb1/6Kr/pB4b1/2R1nbB1/3b1Q2/q4NR1/kr1QNq2/2BR1bnn w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 c6 e3 Nd7 b6 Bg7 b7 Bf8 b5 Nb8 b6 Nd7 Bc4 Nb8 Bb5 cxb5 Ke2 Kd7 Kd3 Kd6 Kd4 f5 g4 h5 g5 a6 d3 f3 e4 b4 g6 b3 g7 h3 Ra2 f4 Ra1 h4 Bb2 h2 Qd2 f2 Nc3 f1Q Rc1 f3 Nce2 f2 Rc5 h3 Bc1 b2 Nf3 Nh6 g8R b1B Rg3 Nd7 b8Q+ Qc7 b7 Ne5 Rhg1 Nhf7 Rh1 Qg2 Rd1 Bf5 Qc8 h1B b8B f1B Qf4 Ke7 d6+ Kf6 d7 Ke6 Ba7 h2 Bb6 Ng5 d8B+ Kd6 Bf6 Nh3 Bg7 Rb8 Bh6 Be7 Bf8 Rh7 Qd2 Bg6 Qf5 Ng1 Qff4 Kd7 Kd5 Qf2 d4 Qd8 Qc2 Bf6 Qcd2 Ng4 e5 Qe7 Qb2 Bbf5 e6+ Ke8 Qbd2 Ne5 Bc7 Rb2 Bb6 Qg7 e7 Kf7 Kd6 Qh6 d5 Qh3 Qc3 Bg7 e8Q+ Kf6 Qc6 Bhg2 Qcd2 h1N Qc8 Kf7 Ned4 Bc4 Ne2 Bf1 Kc7 Kf6 d6 Bg8 d7 Ke6 Kd8 Ng4 Rc3 Bd4 Rc6+ Kd5 Rc2 B6f7 Ke7 Ne5 Kf6 B7g6 d8B Rb1 Rc7 Rb2 Bfc5 Kc4 Bf8+ Kb3 Rc5 Rh6 Kg7 Ka2 Bg5 Rh5 Rg2 Qhg3 Nh4 Qa3 Nf3 Rh4 Rg3 Rh7+
BQN2bRn/2r5/RrR2Q2/n7/k1rN1R2/1bp2n1b/4b2B/q1Q2qBK w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 g4 h5 Kg2 f5 e4 c5 d4 b3 g5 f3+ Kh2 c4 b6 f4 d6 Kc6 e5 Kb5 b7 f2 d7 h3 d5 h4 g6 f3 d6 b2 g7 Qa5 d8B Nh6 g8R Rh7 d7 Nf7 e6 Ra6 e7 Nh8 e8R Rb6 Be2 f1B Re4 f2 Nd2 b1N Rf4 Nc6 Ne4 Nd2 Bf3 c3 b8Q Be2 Bc7 f1Q d8Q Re7 Bd6 Rc7 Qf6 Qa2 Bg2 Na5 Nf3 Bd7 Qe1 Ka4 Nd4 Bc8 Rg1 Nf3+ Kh1 h2 Be3 Bh3 Qc1 Rc4 Be5 Rc7 Nd6 Qa3 Rb1 Qa1 Nc8 Rc4 Qe7 Rbb4 Rf6 Ng5 Bf2 Bf5 Ba8 Nf3 Rg4 Rb5 Ra6 Rb7 Rb5 Rb6 Qf6 Bc2 Bc7 Bb3 Bd6 Qe1 Kg2 h1R Rc5 h3+ Kg3 h2 Kg2 Qd1 Rc6 Qe1 Bdg3 Qd1 Rf4 Qe1 Kh3 Qf1+ Rg2 Rg1 Be3 h1B Bh2 Qd1 Rg8 Rg7 Beg1 Rc7 Kg3 Bg2 Kf2 Bh3 Kg3 Bg4 Kg2 Bh3+ Kh1 Qf1
3q3r/N1Rb1nN1/2nBRR2/5qk1/3bQpbq/4Q1rn/BQ5K/1Nb1Q3 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 g4 Kf6 Kg2 h5 e4 c5 d4 b3 b6 b2 d6 h3+ Kh2 f3 d7 h4 d5 f2 g5+ Kg6 e5 f5 d6 f4 e6 c4 e7 c3 e8N c2 b7 Na6 b8Q Qf6 d8Q Be7 d7 Qd6 Nf3 Bf6 Bc4 f1B Qe7 Bd4 d8R Bd7 Ba2 Nb4 Rc8 Nc6 Qde1 Be2 Ng7 Nh6 Qe3 Nf7 Rc7 Ra3 Bd2 c1B Bb4 Qf8 Bd6 Qd8 Rg1 Bd1 Rg2 Rd3 Re2 Rb3 Ne6 Rc3 Ne5+ Kh5 Qe4 Rg3 g6 Kh6 Re3 Bg4 g7 Kh5 g8Q Kh6 Kh1 h2 Qe8 Kh5 Ng7+ Kg5 Nc3 b1Q Qb2 Qc2 Nb1 Qc5 Re2 Qc2 Qe3 Qf5 Qe6 Rf3 Kg2 h1N Kh2 h3 Qd5 Nf2 Qde4 Ne7 Nc6 Rg3 Na7 Nc6 Be6 Ne7 Ra6 Nc6 Rb6 Rf3 Kg1 h2+ Kg2 Rfh3 Ba2 Rg3+ Kf1 Rg2 Qe7+ Bf6 Qd3 Be8 Bb4 Na5 Qc5 Be5 Rf6 Rg3 Qdd5 Bc3 Ree6 Bd7 Qde4 Nc6 Qce3 Bd4 Bd6 Nh3 Rc8 Ng1 Rc7 h1Q Kf2 Qh4 Kf1 Rf3+ Kg2 Nh3 Kh2 Rg3
1qKQN3/1RBBRQ1N/b2R4/4N1Nr/1b3pb1/1r6/2nB1nq1/3kr1nr w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g4 f5 g5 c5 g6 b3 d6 b2 d5 f3 d7 h3 Ke6 h2 b6 f4 d6 h4 b7 h3 g7 f2 Bg2 f1B e4 Ra3 e5 Nc6 b8B Nb4 Bc7 Nh6 g8N Nc2 Nd2+ Kd3 Rb1 c4 Qh5 c3 Ndf3 Rb3 Ng5 Ng4 Bc6 Nf2 Qf7 Rh5 N1f3 Ke2 Nf6 Kd1 Nfh7 Ba6 Ba4 Qa8 d8R Qa7 d7 Bb4 Re8 Bc8 Re7 Ba6 Rg1 h1R Rg4 h2 d8Q+ Bfd3 Kd7 Be2 e6 Re1 Rg1 h1Q Ne5 Bg4 Rg3 Qg2 Bd2+ Ke2 Rd1 b1R Rd3 Ra1 Rb1 Reh1 Rb2 Rae1 Rd6 Kd1 Bb5 Nd4 Ba4 c2 Rb1+ c1N Bc6 Bd3 Kc8 Nc2 Rb2 Ne2 Bd7 Rc3 Rb3 Ng1 Rb2 Bc5 Rb7 Rb3 Re8 Bb4 e7 Bg6 Rf8 Bd3 e8N Ba6 Rg8 Bf1 Rgg6 Bc4 Rge6 Ba6 Re7 Qb8+
4nQ2/QR1RnQ1R/2N1n1r1/r6p/1q1BR3/4NnNq/4b3/bkrB2Kb w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 g4 Kf6 d4 c5 e4 h5 d6 c4 d7 b3 b6 h3 d5 Ke5 b7 f5 g5 f3 g6 h2 d6 b2 g7 f4 Bd3 Kd4 e5 c3 e6 c2 e7 Qb6 e8R Nc6 d8N Qb4 b8R Ba6 d7 Rh6 Re2 Nf6 g8Q Bg7 Nh3 Rg6 Na3 Kc3 Re4 b1R Be2 Ne8 Be3 Kb2 Ng1 c1N Qa4 Nb3 Nc2 Rc1 Bb6 Bc4 Ne3 Nc5 Ra3 Ra6 Rc3 Bf6 Rb7 Kb1 Rd3 Ba1 Qh7 Nd4 Nc6 Nf5 Rd5 Bd3 Rde5 Ra7 Re7 Bb5 Rg7 Ne7 Qg8 Ra8 Rh7 Bc4 Qb5 Ra3 Qa6 Ra5 Qa7 Ba6 Bc4 Bb5 Ne2 Ba6 Rf1 h1B Rd1 Bb5 Kf1 f2 Bb3 Ba6 Qc4 Bb5 Ng3 Ba6 Ke2 f1N Kf2 Nh2 Kg1 Bb5 Qf1 Be2 Rdd4 Nc7 d8Q N5e6 Qf8 Ne8 Rdd7 f3 Bd1 Ng4 Bc5 Ne5 Bd4 f2+ Kh2 Ra4 Qe1 f1Q Qef2 Qh3+ Kg1 Ra5 Q2f7 Nf3+
4qQN1/bnRn4/3Q2p1/Q1n3K1/q2RN1bB/b4n2/BkB5/2NBqrr1 w - - 0 1 legal: proof: c4 b5 h4 e5 f4 d5 cxd5 Na6 a4 Nb8 axb5 exf4 g4 Bb7 g5 Bc8 h5 g6 Qc2 gxh5 g6 h4 g7 Bb7 Qf5 Bc8 Qg6 fxg6 Kf2 Kf7 Kf3 Kf6 b4 Ke5 e4 Kd4 d6 h5 e5 c5 b6 a5 e6 c4 d7 h3 b7 h2 e7 a4 e8B a3 d3 c3 b5 h4 Kg4 c2 b6 h3 Be2 a2 Nc3 f3 Ne4 f2 Bg5 c1N Bh4 f1N Bd1 Nb3 Rc1 a1B Rc7 Ne7 g8B Nfd2 Kg5 Nc5 Ba2 Ra5 Bef7 Qe8 d8N Bg4 Bfb3 Nbd7 b8Q Nc6 Nf7 Nd8 Bbc2 Ndb7 Nh6 Bd6 Qc8 Rf8 Ng8 Rf1 Qa8 Rb5 Qa5 Rb1 Ne2+ Ke5 Bd5 Bd4 Nc1 Bf8 Rg1 h1Q Ba2 h2 Rg3 Bf2 Rf3 Kd4 Rf4 Nd6 b7 Qf3 b8Q h1Q Bab3 Ndb7 Ba2 Bd6 Qd8 Qe2 Qe7 Qe1 Qf8 Nf3+ Kh6 Ke3 d4 Qh3 d5 Kd4 Ba4 Be7 d6 Bg1 Bac2 Qg2 Bcb3 Qc2 Ba4 Qc4 B4b3 Qa4 Bbc2 Nf6 d7 Ra1 d8Q+ Nfd7 Qaa8 Be3 Ng5+ Kc3 Qa5+ Kb2 Ne4 Nd3 Qb8 Ba7 Qd8 Ba3 Qde7 Nd2 Kg5 N3c5 Qd6 Nf3+ Kh6 Nf6 Nc3 Ng1 N1e2 Qf2 Kg5 Re1 Rd4 Nfd7 Ne4 Qg3 Bd3 Rc1 Bdb3 Rcd1 Nc1 Nf3+ Kh6 Rh1 Be2 Qf2 Bc2 Rdf1 Bed1 Qe1 Qd5 Nh2 Kg5 Rhg1 Qdd6 Nf3+
5NQB/1q2nnR1/pB1q1Nrb/3qNQ2/1RK1Q1b1/NnB3r1/8/b1qk4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 d4 Kd6 Kd2 g5 Kd3 c5 b4 f5 e4 g4 e5+ Kd7 h5 f4 b6 f3 b5 f2 d6 Ke6 h6 Kd5 d7 f1Q+ Qe2 a6 h7 Ne7 b7 Qf4 e6 Rg8 h8B Rg6 b6 Qd6 Rh7 Bh6 Bb2 Nbc6 Nf3 g1Q b8Q g2 b7 g3 Rg7 Qh1 Bc3 g1B Ne5 g2 Ra4 Q8c7 Na3 Nd8 Qa7 Nf7 b8Q Qb7 d8B Qh5 Rb4 c4+ Kc2 Bh2 Bb6 g1Q Qg4 Bg3 Qf5 Qg5 Kb2 Q1c1+ Ka2 Bd7 Qg8 Rb8 Qa8 Bh2 Qf2 Ke4 Qf5+ Ke3 d5+ Ke2 Bbd4 Qc5 d6 Kd1 Bg1 Bc8 d7 Qd6 d8N Qgg2+ Bf2 Qgd5 Bb6 Bg1 Rb3 Bd4 Rb4 Nc6 e7 Bd7 e8N Ne7 Qg5 Bg4 Ne6 Rc8 Nf6 Rc6 Be1 Ba1 Qf5 Rc8 Nf8 c3+ Nac4 c2 Kb3 Rc5 Bc3 Rb5 Ka4 Rc5 Na3 Rc4 Kb3 Rf4+ Nec4 Rf3 Qe8 Rg3 Qc6 Qd4 Ne5 Q4d5+ Qc4 Qf4 Ka4 c1N Qce4 Nd3 Bb2 Qc1 Bc3 Qa5+ Kb3 Nc5+ Kc4 Nb3 Qd4+ Qd2 Qe3 Qc1 Qee4 Qad5+
1KR3b1/nBQNNr1n/2nq1Q2/8/Br3n1R/3r1Bp1/1R1r1r2/2Rb1Nk1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 Kd3 Ke7 Kc4 Kd6 b4 a5 h4 g6 e4 g4 h5 g3 b6 d3 Kb5 a4 c4 g2 c5+ Ke6 f5+ Ke5 b7 Kd4 f6 Ke3 h6 d5 f7 a3 f8Q d2 h7 a2 c6 g5 e5 d4 c7 d3 Kb6 g4 e6 g3 b5 Nc6 b8N Na7 e7 Qd6+ Nc6 Be6 Kb7 Rd8 e8B Nf6 c8B Bg8 Qc2 d1R b6 d2 Be2 f1R Ne7 f2 Nf3 g1N Rh4 Nh3 Qc7 Nf4 Kb8 Rd7 b7 Rd8 Na3 Rb1 Qg7 d1B Nh2 Rb4 Rc1 a1N Bf3 Nb3 Ba4 Na5 Qf7 Qc6 Qg6 Rd3 Qh6 Qd6 Nc4+ Kd4 Nb6 Ke3 Nd7 N5c6+ Ka8 Re1 b8R f1R Rb5 Kf2 Bb7 Kg1 Qf8 Rf2 Nf1 Ree4 Rb6 Rbd4 Rb2 Ree2 Qg7 Rb4 Qf7 Red2 Qf8 Bf7 Qfd8 Re8 h8R Rf8 Rg8 Nh7 Rh8 Nd4 Kb8 Be6 Rg8 Rf7 Qf8 Ba2 Qh6 Bc4 Rc8 Ndc6+ Ka8 Rg7 Qg5 Bg8 Qf6 Nd8 Kb8 Rf7 Rh5 Be2 Rh2 Bd1 Rh4 Ndc6+
1b1b3q/1QB4k/1n1N3N/n5rR/K2rNBp1/1R4n1/2B3Q1/bQb1nn1Q w - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 g4 hxg4 b3 a5 b6 a4 Ke2 a3 Ke1 Bb7 Qd2 Bc6 Qd1 Ba4 bxa4 Ra6 Bd3 Ra5 Bf1 Ra8 Kd2 Kf7 c4 Kg6 Kc2 d5 Kb3 e5 h4 e3 f4 e2 b7 e1N a5 e4 f5+ Kh7 f6 g5 h5 a2 c5 d3 f7 g3 h6 d4 c6 d2 a6 d3 c7 e3 c8Q g4 a7 g2 Na3 e2 Nh3 g1B Qcc2 Be7 f8B Nf6 Qb1 Bh2 Bg2 Nc6 b8Q Na5+ Ka4 Rg8 Nb5 Rg5 Qb7 Ne4 Nf2 Bb8 Nd6 Ng3 Nfe4 Qc8 Bg7 Qh8 Rh5 Bd8 Qdc2 d1N Bf4 d2 Bge5+ Bbc7 Qcc6 Ne3 Qd5 Rb8 a8Q d1N Bf3 Nec4 Qd2 Kg6 h7 Nde3 Qdb2 Nef1 Bg2 Qf6 h8N+ Kg7 Nhf7 Kg8 Nc8 Qh8 Nh6+ Kh7 Ncd6 Rc8 Ndf7 Bb8 Nfd6+ Rc7 Qd2 Rd7 Bf3 Ng2 Qdb2 e1B Bd1 Bd2 Bc2 Nh2 Qh1 Bc1 Rb1 a1B Q2b6 Nhf1 Rb3 Ne1 Qbg1 Nf3 Qgg2 Ne1 Qaa6 Nce3 Qd3 Nec4 Qd1 Be3 Qb1 Bc1 Ndf7 Rd2 Bc7 Rd4 Nfd6 Nb6#
N1BQRNb1/rK6/n2b1R2/1B1R1np1/3R1q2/4q2n/1b4q1/Qbk1B1Qb w - - 0 1 illegal: No possible last move
Q3Bbn1/3B2nq/3BN3/N2Q3n/nR3R2/1KRN1n2/rnp1q3/b1b1B2k w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 h3 g5 Bb2 b5 Bc1 f4 Kf2 Bf5 gxf5 g4 Ke1 g3 Qa4 Ra6 Qc2 Rg6 Qd1 Rg4 hxg4 Qd6 Bb2 Qf6 Bc1 Qd8 e4 Kd7 d4 Kd6 Kd2 c5 Kc2 h5 a4 g2 d5 Ke5 d6 f2 a5 b3+ Kb2 f3 g5 h4 d7 h3 g6 b4 a6 h2 g7 Qh4 d8Q Qh7 f6 Nd7 a7 Nb6 Nh3 g1B Ra6 c3+ Ka1 b2+ Ka2 c4 a8R c2 f7 c3 Be3 c1B Nd2 b1N Nf4 c2 Kb3 Nc4 Rb8 Nb2 Bh3 f1Q Bf2 Qe2 Be1 f2 Rc6 f1N Bd7 Bd4 Ne6 Ng3 Rf1 h1N Rf4 Nh5 Rc3 N1g3 Qe8 Nf5 Nc4+ Kf6 Ne5 Nd2+ Ka2 Nf3 Nd3 Kg6 e5 Kh6 Kb3 Kg6 Nc7 Kg5 e6 Be5 e7 Bf6 Ka2 b3+ Ka3 Be5 Rbb4 Bd4 Qa8 Bf6 Rfc4 Bd4 e8B Kg4 Ne6 Kh3 Qd2 Kh2 Qg5 Be5 Rf4 Kh1 Qgd8 Nd1+ Ka4 b2 Kb3 b1N Qd5 Nb2 Q8a8 Ngh6 g8N Nfg7 Ne7 Ng8 Nc6 Bf6 Rc5 Nc3 Na5 Nca4 Rc3 Nd1 Rc7 Ba1 Rc8 Ndb2 Rc3 Be7 f8B Bd6 Be7 Bc5 Bg5 Bf8 Be7 Nb6 Qac6 Ngf6 Bd6 Be7 Bg6 Ra8 Nc4 Ng8 Bge8 Ra2 Na5 Bf8 Qa8 N6a4
q5nq/kqB2qQ1/1Nb2B2/1q1B4/3n1rq1/N2B3R/1p2RbnN/K2Q3Q w - - 0 1 legal: proof: h4 b5 f4 d5 b4 g5 c4 a5 cxd5 axb4 f5 g4 f6 exf6 Ba3 f5 g3 Ra6 Bb2 Rg6 Ba3 f4 Bc1 Rg5 hxg5 fxg3 d4 Kd7 Kd2 f5 Kc2 h5 Kb2 c5 e4 Kc7 a4 Kb7 g6 h4 d6 c4 e5 b3 g7 g2 a5 c3+ Ka3 b4+ Ka4 g3 a6+ Ka7 d5 h3 e6 f4 d7 h2 e7 b2 Kb3 c2 Ka2 f3 e8B f2 d6 Rh4 Bb5 f1N Nh3 g1Q Bf7 g2 Bf4 c1Q Bd3 Qf2 Bd5 g1Q Na3 Qcc7 Ng5 Qg4 Nf3 Bb7 Bg3 Qf6 d8Q Ne3 d7 Bc5 Kb1 Qf7 Ra2 Bc6 Qg1 Qb7 Bc7 Ng2 Qc1 Ne7 g8Q Qfd4 Qg7 Ng8 Qd1 Qdf6 Qe7 Be3 d8B Bf2 Qee1 Qh6 Bf6 Qh8 Rf1 h1Q Nh2 Qb5 Qe4 Qb7 Re1 Qa8 Re3 Qf1 Rh3 Qfe2 Bc2 Qb5 Bd3 Qbb7 Qee1 Qb5 Qh1 Qbb7 Kc2 b3+ Kc3 b1Q Re2 Qb5 Qde1 Qd1 Kb2 Qf3 Qd2 Rf4 Qc1 Qg4 Ka1 Qd2 Qcd1 Qdb4 Bg5 Be8 Be7 Nc6 Bf6 Nd4 Bce5 Kb6 a7 Bc6 Bb8 Qbe7 Bd6 Qe4 Bb8 Qab7 a8N+ Ka6 Bbe5 Ka7 Bc7 Qee8 Nb6 Qeb8 Bce5 Q8a8 Bc7 b2+
q1Q2R2/2N2N2/N1p1Q3/K1B1qq2/Rr5B/2q2n2/1n2qRRb/r2Bkq1n w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 d4 Kd7 Kd2 Ke6 Kc3 Kd5 b4 Ke4 b6 h5 b5 f5 g5 a5 e3 c6 d5 f4 d6 h4 g6 a4 Kb4 c3 g7 h3 b7 h2 b6 a3 Bd2 a2 Qh5 f3 Be2 f2 Na3 f1Q Bd1 Kd3 e4 c2 e5 c1Q e6 Nd7 b8N Nh6 g8R Qe2 b7 Nc5 d7 Nf7 e7 Ne5 e8R Bd6 Be3 Nf3 Nh3 g1Q Nb5 g2 Nc7 Qgf1 Ng5 g1Q Qh3 Qgf2 Ref8 Na4+ Bc5 Kd2 Nba6 Rh4+ Ka5 Ke1 b8Q Rb4 Nf7 Nb2 Qc8 Qc3 Rg2 Be5 Rhg1 h1N Qe6 Qf6 d8B Bh2 Bde7 Q2d4 Rf2 Qde5 Rgg2 Qff5 Bh4 Ra7 Rc1 a1Q+ Qa2 Qab1 Qae6 Qbd3 Ra1 Qd8 Qb7 Qa8 Qbc8 Rab7 Ra4 Rb8 Qcd7 Re8 Qc8 Rd8 Bc2 Rd1 Bb3 Rb1 Bd1 Ra1
Q4N2/1r2b2Q/qq1r3r/kn1rQ3/rq2BNR1/Q7/R2B2bp/2qNB2K w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 b4 f5 e4 h5 c4 d5 e5 Kd7 e6+ Kc7 e7 Kb6 e8N a5 g6 d3 g7 f4 Ra2 h4 Qb3 a4 Bg2 a3 Kf1 d2 Rh2 d1R+ Ke2 d4 Ra1 h3 Bd2 a2 Be4 g2 Kf2 d3 Nf6 f3 Nh7 Bb7 Qa3 Nf6 g8Q Ra4 Nc3 Qb8 Nge2 g1R Nf4 Ne8 Rg2 Be7 Nf8 h2 Qh7 Nc7 Rg3 Rb1 Nd1 Bd5 Be1 d2 Rg2 Bb7 Kg3 f2 c5+ Ka7 c6 f1Q b6+ Ka6 b5+ Ka5 Qh3 Qc4 Qh7 Qc1 Kf2 Ba8 b7 g3+ Kf3 Rh1 b6 Nb5 c7 Rb4 Rg1 g2 c8Q Rd4 Qcf5 Rd5 Qe5 Qd6 b8B Qb4 b7 Rd6 Rb1 a1Q Rb2 Rd5 Ra2 Rd6 Qhf5 Rhh6 Qh7 Rd5 Ba7 Rdd6 b8Q Bc6 Nc3 d1R Be3 R1d5 Nd1 Ba8 B3d2 Bb7 Rf1 g1Q Qa8+ Qa7 Kg2 Qd4 Rf2 Qa6 Rf3 Qb6 Rg3 Rf1 Rg6 Rf3 Rg4 Rb3 Kh1 Qd8 Qc8 Nc3 Ne3 Qd4 Nd1 Rc5 Bf2 Bc6 N8e6 Rb7 Bd5 Qb4 Nf8 Nb5 Qa8 Qb6 Bf3 Be4 Bfe1 Rcd5 Bg2 Bd3 Bf3 Bf1 Be4 Bg2+
1n2QQ1n/B2Q1rRK/2p1rq1q/3B4/rr6/R3n3/r1RN1kbQ/2N2Bn1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Ra4 Be7 Ra5 g4 Ra1 Bg5 hxg5 fxg3 b4 Kd7 e4 Kd6 Ke2 Ke5 Ke3 a5 b6 f5 g6 h5 b7 f4+ Ke2 Kd4 b5 c6 e5 f3+ Ke1 c3 d3 c2 Kd2 a4 g7 h4 e6 f2 e7 g2 e8Q g3 b6 h3 Rh2 Ne7 g8B a3 Bd5 a2 Ke2 Rh5 Kf3 Re5 Kf4 Re6 Kg5 Ra4 Nd2 Ke3 d4 Ng6+ Kh6 Nh8+ Kh7 Qf6 Ne2 g1R Bb2 g2 Nc1 Rh1 Ba3 g1N Bc5 Bd7 Rg2 Rb4 Rg7 Rh2 Qdh5 Bc8 Qhf7 Rg2 Qff8 h2 Qd7 h1N Qde8 Ng3 Qd7 Na6 b8Q Nf5 Qh2 Nb8 b7 Rg4 Ba7 Rf4 Rb1 a1R Rb2 Ra2 Qde8 Nd7 b8R Rg4 Ne2 c1Q Ra8 Nb8 Rc2 Ba6 Qd7 Bd3 Qde8 Be4 Qd7 Bg2 Qde8 Qb2 Nc1 Qa3 Bb6 Qc3 Ra3 Qg5 Ba7 Rf4 Bb5 f1R Qd7 R1f3 Bf1 Kf2 Qde8 Rc4 Be4 Qe3 d5 Ra4 d6 Qd4 d7 Ne3 d8Q Qh6+ Kg8 Qa1 Bd5 Rfb4 Qc8 Rf7 Qcd7 Qg5 Kh7 Qaf6 Qde7 Qgf4 Q7d7 Q4h6+
6b1/1qb1Nq2/4B2B/2RnbRq1/1n1pQn2/RRN1N1Qq/4B1b1/K4rk1 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 Ke7 e4 Kd6 b4 Ke5 c4 Kf4 g6 d5 g7 f5 c5 h5 e5 d3 Kc3+ d2 Kb2 Ke3 e6 Kf2 c6 a4 c7 h4 e7 f4 e8B h3 b6 g2 b5 f3 b7 g3 b6 h2 Bh5 a3+ Ka2 Qd7 Bc4 Nf6 g8N Bd6 Ne7 Nc6 b8Q Rf8 b7 Nb4+ Kb3 a2 Kb2 Qh3 Nc6 Be6 c8R Bg8 Re8 Bc7 Qa4 d1Q Nc3 Qf1 Nge2 g1N Nf4 g2 Re5 Ne2 Ne7 g1Q Rf5 Qg5 Ng2 Nf4 Ne3 Rf7 Rg1 h1Q Bg4 Rf8 Be2 Rf7 Bd2 Qh1g2 Rc1 a1B+ Kb1 Qgh1 Rg3 Qh1g2 Qc2 Kg1 Qe4 f2 Rf3 Ba5 Qd6 Bc7 b8R Bb2 Ra8 Ba1 Ra3 Qgh1 Nb5 Be5 Nc3 d4 Ka1 N6d5 Qg6 Qgh6 Qg5 Q1g2 Qh4 Qg5 Qg3 Rf8 Rf6 Rf7 Be6 Rf8 Rf5 Rf7 Bd1 Qc4 Be2+ f1B Na4 Qb3 Rc5 Rf6 Nc3 Rf8 Qh4 Qf2 Qg3+ Bg2 Nc2 Rf7 Rd3 Qf3 Ne3 Qc4 Rb3 Qb5 Ra3 Qb7 Rf6 Ng6 Na2 Qfh5 Ng4 Qe3 Rdb3 Qf2 Bh6 Qg5 Nc3 Qff5 Ne3 Rf8 Bd7 Qe6 Rf3 Rf5 Rf4 Qf7 Be6 Rf6 Rh4 Rf3 Rf4 Rf2 Rf6 Ngf4 Rf5 Rf1+
3KRQ1n/1k2r1n1/1N2pBR1/b5q1/2r1Rnq1/6RN/1qr2Q1r/1B1q1N1Q w - - 0 1 legal: proof: f4 b5 e4 f5 d4 c5 a4 cxd4 axb5 Bb7 g3 fxe4 g4 Bd5 f5 Be6 f6 gxf6 g5 Bg4 h3 f5 hxg4 f4 Kd2 h5 b4 d5 c4 Kd7 g6 Kc8 b6 a5 b5 e6 c5 h4 g7 h3 g5 f3 g6 h2 c6 a4 c7 a3 Nc3 f2 Kc2 d3+ Kb3 d4 Kc4 e3 Rb1 a2 Nd5 a1Q Nh3 e2 Rb4 e1N Bg5 d2 Bd3 f1R Bb1 d3 Rg1 h1R Rg3 Nh6 g8R Qb2 g7 Nc6 Ne3 Nf5 Bf6 Kb7 c8N Rf2 Nf1 Nce7 Kc5 Rh7 Re4 Rhh2 Rh8 Rf4 g8R Ra2 R8g6 Ng7 Qf3 d1Q Qf2 d2 Rg8 Qe8 Kd6 Nd3 Rh8 Qf7 Kd7 Qg4 Kd8 d1Q Rg8 Ka8 Rh8 Qg8 b7+ Kb8 Nb6 Ka7 Re1 Rc4 Re4 Nf4+ Nd7+ Rd4 b6+ Ka6 b8Q Rc4 Qe5 Kb7 Qh5 Qg5 Rh6 Neg6 Qhf3 Qf7 Qh1 Bb4 Re8 Nh8 Rg6 Bd2 Qhf3 Qg8 Qh1 Kc6 b7 Ba5+ Ke7 Kc7 b8Q+ Kc6 Qd8 Kb7 Nb6 Qgg4 Qff3 Rhc2 Qf2 Qg5 Ng1 Rh2 Nh3 Raa4 Qd6 Rc7+ Kd8 Rac4 Qfd4 Qgg4 Qf8 Re7 Qd2 Qh7 Qd4 Qhh4 Qd2 Qhg5 Qd4 Nd5 Qf2 Nf4+
Kn1R3N/2q2NqN/4Rp2/r3R2q/1qQ1R1qk/2nq1B2/rB2n3/3BqQ2 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 g5 a5 g6 axb4 h4 b6 Rh3 f6 Rc3 Ba6 Bg2 Ke7 Rh3 Bc4 Bf1 Bf7 gxf7 g5 Rh1 g4 Qd3 Bh6 Qd1 Bg5 hxg5 Qc7 Qd3 Qc8 Qd1 Qd8 Kf2 h5 f8R d5 c4 f3 a4 d3 Ke3 g3 Kd4 g2 e4 f2 a5 d2 a6 b3 c5 b2 g6 b5 a7 h4 c6 h3 Kc5 b4 g7 d4 e5 b3 e6 h2 c7 d3 Kb6 Nh6 Kb7 Na6 c8Q Nf5 Be2 f1Q Na3 b1N Qc4 b2 Nf3 g1Q Nb5 Rh5 Ra5 Nd4 Nd6 Qe1 Ng5 Nc3 Nh7 b1Q+ Bb2 Rd5 g8R Qg7 Nf7 Rg5 Bh5 Nde2 Nh8 Rf5 Ra4 Ra5 Re8+ Kd6+ e7 Ke5 Rg1 Kf5 Rg3 Qd6 Re3 h1Q+ Re4 Qhg1 Re6 Q1g4 Rd8 Qdg3 Rge8 Qe5 Qc1 d1Q Rb4 d2 Ra4 Rc8 a8B Qb3+ Ka7 d1Q Bf3 Qbd3 Qb1 Rcc5 Ka8 Qc7 Rb4 Ra2 Rb5 Qh1 Qc1 Qdg1 Qf1 Qb4 Re4 Qge3 Rb6 Rca5 Rbe6 Nd4 R4e5+ Kf4 Re4+ Kg3 Bd1 Qe1 Re5 Q4g5 Bhf3 Nde2 Rd6 Ra1 Red8 R1a2 e8N Qhh5 Rde6 Qgg4 Nd6 Kh4 Ndf7 Nb8+
B3Q1NB/2k1N1Qp/R4nNp/4Rq1b/rq4r1/Brq3QK/1b1B2bn/8 w - - 0 1 legal: proof: b4 b5 c4 a5 h4 e5 f4 exf4 h5 d5 h6 gxh6 cxd5 axb4 a4 Kd7 axb5 Ke8 Kf2 Kd7 d4 f5 e4 c5 g4 b3 Kg2 b2 g5 c4 b6 f3+ Kh3 f2 d6 c3 g6 f4 b7 c2 d5 f3 e5 Ra3 e6+ Ke8 g7 Nf6 g8N Qd7 Nc3 Kd8 Nge2 b1R Bg2 f1B Bd2 c1Q Nf4 f2 Qg4 Ba6 Qg7 f1Q Ng6 Qc6 d7 Ra4 e7+ Kc7 e8Q Qcb5 Rh2 Ng4 d8B+ Kd6 B8g5 Qf5 Be7+ Kc7 Ba3+ Nd7 Bh1 Qc5 Re2 Rb3 Re5 Be2 Ra2 Qb4 d6+ Kb8 Be4 Ndf6 d7 Kc7 Bg2 Bc5 Bc6 Bd4 d8B+ Kb8 Be7 Kc7 Be4 Be6 Bc5+ Bf7 Ba7 Bf3 Nd5+ Kd6 Bb6 Bb2 Nde7 Qc3 Bd4 Bg2+ Kh4 Qcc8 b8Q+ Qc7 Ba8 Nh2 Qb7 Qcc8 Qf3 Qc3 Qg3 Kc7 Nf4 Qcc2 Q7g6 Bc1 Re4 Bf3 Bab2 Nfg4 Kh3 Ra7 Nf6 Rg8 Qg5 Rg6 Nfg8 Qcc3 Bh8 Nf6+ Q5g4 Rg7 Re5 Bh5 Raa5 Bd5 Ba3 Bb2 Ra4 Qfe4 Qgg6 Qef3 Qgf7 Rg4 Nfg6 Qf5 Qg7 Bb7 Ra6 Bf3 Rb6 Ra4 Ra6 Bg2+
1R6/1bR1p1KB/1R2r3/nN1Nk1p1/1q1b1NB1/2bB4/3Qb1nn/3BrQ1b w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 f4 b5 axb5 fxe4 f5 h6 f6 Kf7 fxg7 Ke8 g4 Qc7 g5 Qb6 g6 Qd8 Bg5 hxg5 Kd2 d5 c4 Kd7 h4 Ke6 b4 a5 c5 a4 c6 a3 b6 a2 b5 d3 Ke3 d2 c7 Nc6 b7 Ke5 b8Q Kf5 b6 Ra5 h5 Ra7 h6 Ra8 h7 Ra5 b7 Nd4 Na3 Qd6 Nb5 Qb4 Rb1 a1B Bd3 Nf6 g8B Bg7 Nh3 Ke5 Nf4 Bc3 Qf1 d1B Be6 Bf3 Bg4 Bg2 Bd1 Ra6 Rg1 Rd8 h8N Re6 Qa7 Bh1 b8R Rd7 Qa5 Bb7 c8B Nc6 Qa2 Na5 Qd2 Ng8 Rb2 Nh6 Rg2 Bf6 g7 Rdd6 g8B d4+ Ke2 e3 Bgh7 Bg7 Nd5 Ng4 Kf3 e2 Rc2 e1N+ Kg3 Bb2 Rc7 Bc3 Rf2 Rd7 Rf6 Nh2 Rh6 Ng2 Rg6 Nf3 Kg4 Nh2+ Kh5 Bf6 Rh6 Rdd6 Kg6 Rc6 Bf5 d3 Kf7 Bd4 Bfg4 Rc1 Ng6+ Ke4 Ngf4+ Ke5 Bc2 Re1 Bcd1 Rb6 Bcf5 Re6 Qdf2 d2 Bd3 Bg7 Rg6 Ra6 Rb6 Bc3 Bb3 d1B Qd2 Be2 Bd1 Ba8 R6b7 Re6 Rb6 Bb7 Na7 Kd4 Kg8 Be5 Kf8 Bd6 Kf7 Ke5 Nb5 Bc5 Kg7 B5d4
1R2nQ2/K5br/3rBNbB/4p2Q/3pbR1n/4kBq1/1nQ1Nb2/1Q2R1r1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 d5 h4 g5 f4 b3 h5 b2 b6 d3 f6 g3 f5 g2 f7 d2 b7 d4 h6 g4 h7 g3 f6 Qd5+ Kb6 e5 c5 Ke3 c6 Bb4 f8Q Ne7 f7 Nf5 c7 Qf3 Nc3 b1B Nge2 g1R Qc5 g2 f8Q Qg3 Rh4 Na6 b8R Bb7 c8B B7e4 Rf4 Nh4 Be6 Nc7 Qe1 Bg6 Ne4 Ne8 Nf6 Bbe4 Qc2 Ra7 Qed1 Rd7 Ka6 Rd6+ Ka7 Ba3 Qb1 Bb4 Qdc2 Ba3 Nc3 Bb4 Be2 Ba3 Bf3 Bb4 Ba3 d1N Ne2 Bd2 Bc1 Nb2 Nh5 Rd1 Nf6 g1B Rf5 Bf2 Rf4 Rg8 h8Q Rg1 Qh7 Rh8 Qh5 Rh7+ Qg7 Nc7 Rg4 Ne8 Qa2 Rf1 Qcc7 Kd3 Qf8 Bf4 Be3 Rhd7 Re1 Bh6 Bg5 Re7 Rf4 Rg1 Qa1 Ke3 Qb1 Bb7 Qc8 Rh7 Qcc2 Bg7 Bh6 Bbe4
2B2qB1/1b3K1R/r1q1p1R1/4Bb2/1Qb3Nn/1NNr3k/n1b1p3/1Q1NbR2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 Ke3 h5 Kf4 c5 Kf5 c4 Kg6 b3 d4 h3 f4 h4 g4 e3 g5 c3 d6 Ke6 f5+ Kd5 f6 Ke6 d7 b2 f7 e2 b6 h2 d5+ Ke5 b7 c2 d6 h3 Ra6 Rh5 Bf4+ Ke4 Be5 Nc6 b8Q c1Q Qb4+ Ke3 Nc3 Kf2 Qd3 Nh6 Qb1 Nf5 Bg2 Qe8 d8N Ra7 Rb6 Ra6 d7 Bh6 Bf3 Qf8 Bg4 Kg2 Ne6 Bb7 d8N Nh4+ Kh7 Bc8 Nd4 Bf5+ g6 Bc2 Bc8 e6 Rb7 Rg5 Nb3 Rg3 Rb8 Rd3 g7 Bd2 g8B Be1 Kh8 Qe7 f8R Qd6 Rf4 Qf8 Nf7 Kg3 Rf1+ Kg2 Qb5 Nb4 Nh6 Na2 Rb7 Rd2 Qb4 Rd3 Rf4 Kg3 Ng4 Kg2 Rg7 Kg3 Qa1 b1B Rg6 Kg2 Nd1 Kg3 Nf3 Kg2 Rf1 h1B Ng5 h2 Ne4 Kh3 Nec3 Bb7 Rf7 h1B Rh7 Bhd5 Qb2 Bc4 Qa1 Qf3 Kg7 Qa3 Qb2 Qc6 Kf7 Rg3 Bg7 Bf5 Qc1 Bbc2 Qb1 Re3 Be5 Rd3 Qa4 Qac5 Qb4 Qf8+
1r1b1nb1/bB2p3/2Kb4/3RR3/Q1Q1B3/6q1/BQrNpnbQ/NN1kq3 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 f4 b5 axb5 fxe4 f5 h6 f6 Kf7 fxg7 Ke8 g4 Qc7 g5 Qb6 g6 Qd8 Bg5 hxg5 Kd2 a5 h4 d5 b4 Kd7 c4 Ke6 c5 Ke5 h5 Kf4 h6 e3+ Kd3 g4 b6 e2 b7 a4 h7 a3 c6 a2 b5 g3 b6 g2 c7 Nd7 b8N Nh6 g8B Ng4 g7 Bb7 c8Q Qc7 Nf3 g1B Kd2 d3 Nc6 d4 Na5 Kg3 Na3 Kf2 Bg2 Qg3 Rh5 Ra7 Rb1 a1B Ba2 Ra8 g8B Bg7 Rbb5 Be5 Bgb3 Bd6 Bd5 Bc6 Qa6 Rhc8 h8Q Nf8 b7 Rc7 b8Q Bc3+ Kc1 d2+ Kc2 d3+ Kb3 Ke3 Qbb6+ Bd4 Kc4 Rb8 Qa4 d1Q Nb3 d2 Na1 Qde1 Nb1 d1B Bh1 Bc2 Re5+ Be4 Qbb7 Bb6 Qh2 Be8+ Rc5 Bf7 Kb5 Bg8 Bg2 Kd3 Nfd2 Be3 Bc6 Nf2 Bf3 Ba5 Qbb6 Bed5 Bb7 Be4 Rcd5+ Bd4 Nab3 Kc2 Na1+ Kc1 Bh1 Rc2 Bg2 B4c5 Kc6 Kd1 Qb2 Bd8 Q6c4 Ba7 Bh1 Bf5 Bf3 Bh3 Be4 Bg2
3n1Rq1/BQb2Q2/1N2rr2/2BQK2b/4n1rp/nR1p3q/R2n2NR/1N1k4 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 h4 gxh4 b4 a6 b6 Bg7 b7 Nh6 b5 Bf8 b6 Ng8 Bb5 axb5 Ke2 Kf7 Kf3 Kf6 Ke4 h5 g4 e5 f4 d5+ Kf3 e4+ Kg2 b4 c4 d3 c5 e3 Kf3 b3 c6 d4 Ke4 b2 c7 e2 Qb3 e1N Qa2 d2 Qb3 d1R Ra7 h3 Rh2 h4 Ne2 Bd6 Be3 Rh6 Ra2 Ra4 Qd5 Nc6 b8R Nc2 b7 Na3 Bf2 Be6 c8N Bf7 Nb6 Bh5 Bg1 Bc7 g5+ Ke7 g6 Kf6 g7 d3+ Nc4 Rf1 Bb6 Qf8 Ba7 Nd8 Kd4 Rg6 Ke4 Ra6 Nb6 Rg4 Kd4 Nh6 g8Q Nhf7 Qh7 Ng5 Qhd7 Qg8 Qe8 Kg7 f6+ Kh6 f7 Ne4 f5 Kg5 f8B Rf3 f6+ Rf5 Ng1 Kf4 f7 Rf6 Ne2+ Kf3 Nf4 Rd6 Ng2 Ke2 Be7 Kd1 f8R Rf6 Bc5 Rd6 Nd2 b1N Qf7 Rf6 Nc8 Rad6 Ke5 Nbc3 Nb1 Nd2 Ra8 Nce4 b8Q Bb6 Qbb7 Bc7 Ne1 Rf3 Nb6 Rff6 Rg2 h2 Rb8 h1Q Rh2 Qf1 Ng2 Qf3 Rb2 Qe3 Ra8 Qf3 Rb3 Qh3 Bb8 Nb5 Ra2 Na3 Ba7 Rde6+
5n1N/B2b1R2/B6B/4r1qN/kbp2Q2/2q3Nr/BK2QRbp/3rQ1nb w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Kd7 d4 h5 Kd2 f5 Kc2 c5 g4 b3+ Kb2 h3 g5 f3 b6 h4 g6 h2 g7 f4 e5 f2 b7 h3 e6+ Kc7 e7 Kb6 e8Q f3 d6 Ra5 d7 Ra8 d5 Ne7 g8B Nf5 d6 Qg5 d8N Nd4 d7 Ra5 Qde1 Ne2 Nd2 Kb5 Ne4 Rh7 Rb1 Ka4 Nf7 Rb5 d8Q Nd7 b8B Ra5 Bg2 f1R Qc7 f2 Nh8 Bd6 Qh5 Nf8 Ng3 Bd7 Bb7 Be7 Ba6 c4 Qf4 Re5 Ba7 Rh6 Bh7 Bb4 Qe8 Rh5 Bd2 Rh6 Rd1 Rh4 Bb1 Rh6 Ba2 Rh5 Nf3 Ng1 Nh4 Rh7 Qe2 Rh5 Rb1 Rd1 Nhf5 f1B Ng7 Bg2 Rc1 Rh7 Rc2 Rh4 Bc1 Rh7 N7h5 Rh6 Kb1 b2 Qe6 Nf3 Rg1 h1B Rf1 h2 Qe1 Ng1 Rcf2 Rh7 Qeg4 Rh6 Qge2 Rh7 Ng7 Rh3 N7h5 Ba3 Kc2 b1Q+ Kc3 Qb6 Bd2 Bb4+ Kb2 Qd6 Qf5 Bdc6 Rf4 Qg8 R1f2 Bd7 R4f3 Qgg6 Bh6 Qd3 Qg4 Qg7 Rf7 Qg5 Qf4 Qc3+
k1B1R2Q/bbQ2b2/n3rK1R/Q3pn2/N3q1r1/5QpR/3B4/n1qNnN2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra6 fxe4 Ra5 Be6 Ra1 Bc8 Ke2 Kd7 Ke3 g5 Kd4 c5+ Ke5 Kc7 f4 Kb7 d4 g3 h4 g2 f5 e6 h5 b3 b6 c4 h6 c3 f6 g4 h7 b2 d6 e3 d5 c2 f7 g3 d7 e2 d6 e1Q+ Ne2 g1N Rh6 Be7 f8R Qe8 d8Q Ra7 d7 Bc5 Nd2 b1B Bh3 Ka8 Nf1 Ba2 Qc7 Ne7 d8Q Nf3+ Kf6 Nf5 Bd2 c1N Nc3 Rg8 h8Q Nb3 Rc1 Qa4 Re8 e5 Qe2 Bd4 Nd1 Bb7 Qd5 Qa3 Qa5 Na1 Rc4 Bf2 Rch4 Bf7 Bg4 Qb2 Rh3 Qc1 Qd3 Qe3 Qdd5 Ne1 Qf3 Nh4 Bf5 Rg4 Bc8 Qe4 Qcc5 Ba6 Qc4 Re7 Qc7 Nf5 b7+ Ka7 Qc2 Nc6 b8N Nb4 Qcc7+ Ka8 Nd7 Ba7 Nc5 Bb7 Na4 Na6 Bb4 Bb8 Bc3 Ba7 Bd2 Re6+
1nkr1qnQ/1R5R/4r2N/NB2p3/1N1bpbK1/3bBq1R/2bB2QR/5q2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 f4 h5 d4 h3 g4 h2 g5 h4 f5 b3 b6 e6 b7 b2 d6 h3 d5 c6 f6 Bg7 g6 Ne7 f7 Bd4 f8R Bc3 g7 Rh5 g8N Ba5 Rf3 Qe8 Be3 Ng6 Nh6 Qf8 Ra2 Re5 Nd2 b1B Nc4 Ne7 Qd2 Bb6 Na5 Bc2 Rf7 Bd4 Nf3 Kd8 d7 Ng8 Ne1 c5 Nd3 c4 Kf2 c3 Kg3 Kc7 Nb4 Kd8 Bb5 Kc7 Rhf1 h1Q R1f3 h2 Rh7 Qf1 Qg2 h1Q Kg4 Qf2 Rh3 Qhf1 d8R+ Bd7 Re8 Bd3 Ree7 c2 d6+ Kd8 Reg7 c1B Re2 Bc6 d7 Bd5 Rf7 Bb3 Bd2 Kc7 Rfg7 Bbc2 d8B+ Kd6 Be7+ Kc7 Bc5+ Kd8 Be1 Bf4 Bd2 Rf5 Ba7 e5 Bc5 Rf6 Rf7 Bc3 Bce3 Re6 Rc7 Bd4 Rce7 Nd7 Ref7 Kc7 Re7 Rc8 b8Q+ Kd8 Qa8 Nb8 Rb7 Rc3 Qa6 Kc8 Qd6 Rc6 Qe7 Ra6 Qf6 Rad6 Qh8 Rd8 Qg1 Q2e1 Reh2 Qef2 Qg2 Qf3+
2Bbq3/4rB1N/1k1n1KRQ/1n1p1bNq/rQ6/2pB4/1RRn1n1r/1NR5 w - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 g5 h4 gxh4 d3 Kf7 Bd2 Ke8 d4 cxd4 Bc3 dxc3 axb5 Ba6 Qb3 Bb7 Qd1 Bc8 Ke2 e5 Ke3 d5 f4 Kd7 b4 Kc7 g4 a5 b6+ Kb7 f6 h5 g5 a4 g6 e4 Kd4 a3 Ke5 h3 c5 h4 f5 a2 g7 h2 b5 h3 f7 e3 f6 e2 Qb3 e1N Bd3 Ra3 c6+ Ka8 c7 Kb7 Qb4 Be7 f8N Ra4 f7 Qe8 Nf3 Nh6 g8B Bf5 Nh7 Na6 Rg1 h1Q f8Q h2 Nfg5 Bd8+ Be6 Qf3 Rg2 h1N Rc2 Nf2 c8B+ Ka8 b7+ Ka7 b8R Qfh5 Rb6 Nc7 Qfe7 Nf7+ Kf6 Nd6 Bf7 Nf3 Ra6+ Kb8 b6 Ncb5 b7 Nd2 Rb6 Ka7 b8R+ Bc7 Qf4 Re4 Qf8 Re7 Qb4 Bd8 Qh6 Qc6 Na3 Qe8 Rac1 a1R Nb1 Ra4 Qa3 Nd4 Rbb2 N4b5 Rb6 Rf8 Qb4 Rg8 Ne4 Rg2 Neg5 Rh2 Kg7 N6e4 Rg6 Ned6 Kf6 Kb6
NnQ1Q2B/3Q2np/2N2b1p/1Bq2bRN/7B/1b3Kb1/1r2R1Nk/1r2q1q1 w - - 0 1 legal: proof: b4 b5 c4 a5 h4 e5 f4 exf4 h5 d5 h6 gxh6 cxd5 axb4 a4 Kd7 axb5 Ke8 Kf2 Kd7 g4 Kd6 e4 Ke5 d4+ Kf6 g5+ Kg6 d6 c5 d5 f5 d7 c4 d6 c3 e5 c2 b6 b3 b7 f3 e6 f4 e7 Kf5 e8Q Kg4 g6 b2 g7 Qc7 d8Q Be6 d7 Bb3 Ra5 Ne7 g8N Nf5 Nh3 Be7 Bb5 Ng7 Na3 b1B Re1 Bf6 Bb2 c1B Re2 Bf5 Qc8 Qc5+ Qd4 Ra6 d8B Rb6 Bc3 Bb2 Nc4 Be5 Nf6+ Kh4 Kf1 Kg3 Qdd7 f2 Nh5+ Kh2 Bf6 Rf8 Bh4 Rff6 Bd4 Rfd6 Bc3 Rd2 Bd4 Ba1 Bc3 Rb2 Bd4 Na6 b8N Rb7 Nc6 Nb8 Nb6 Rb1+ Re1 Bb2 Ke2 f3+ Ke3 f1Q N3f4 f2 Na8 Qg1 Ng2 Bg3 Re2 Qe1 Kf3 f1Q+ Rf2 Qg1 Re2 Ne6 Bh8 Ng7 Ra4 Bf6 Rg4 Ra7 Rg6 Ra2 Rg5 Rab2
1nNQq1k1/1n1p1b2/Bp5R/q1BR3b/RN1Q2b1/n2KB2r/2n1B3/r3Q3 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 g5 f4 gxf4 h4 Nh6 g5 Bg7 g6 Bf6 Qf3 Bg5 hxg5 Ng8 Qg4 Nf6 Qd1 Ng8 Kd2 Kf8 c4 e5 a4 h5 c5 d3 c6 b3 c7 h4 a5 f3 a6 b2 a7 e4 g7+ Kf7 f6 h3 Na3 b6 Qe1 f2 Nb5 h2 Nh3 Qe8 Nf4 Ba6 c8B Nh6 g8R Nf5 Ra4 Rh3 Be2 f1B Nd5 Nd6 Nb4 e3+ Kc3 d2 Kd3 b1N g6+ Ke6 f7 d1B f8B Nb7 g7 Kf7 Be7 Na3 Bc5 Bg2 Rh8 Bf3 Rh5 Kg8 Rd5 Bh5 Bd2 Nc4 Nd6 Na3+ Kc3 Bc4 Kd4 Na5 Ba6 Nb7 Nc8 Ba2 Kd3 Bg4 Rf1 h1Q Rf6 Qh2 Rh6 Qhe5 Bf3 e2 Bde3 Nc6 Rd4 Bf7 Rd5 Rb8 a8Q Qg5 Qa7 Ra8 Qb8 Bgh5 Qe5 Nb8 Q1c3 Bg4 Qcd4 e1N+ Ke4 Qe6 Bfe2 Nec2 Kd3 Qe8 Qg3 Qge5 Qe1 Bgh5 Bf1 Bdg4 Be2 Qg5 Rf5 Qh4 Bf8 Qee7 Bb5 Qhg5 Ra7 Nc4 Ra1 Ra2 Ba6 Qe8 Ra5 Qb5 Bd6 Qa4 Rd5 Qa5 Bc5 Ra4 Rb1 Ra2 Rb2 Ra1 Ra2 Bfe6 Ra3 Kf7 Ra4 N4a3 Rh8 Kg6 Rh7 Bf7 Rh8 Qe5 g8Q+ Kf6 Qd8+ Kg7 Qe4 Qe7 Rh6 Qe8 Qd4+ Kg8
RbR1Q1r1/4r3/3n2Np/Rr1R2pN/2r4B/Qrnq3K/1N1r2QB/1k1b4 w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 h4 b4 g5 b3 f4 exf4 axb3 Nh6 b4 Ng8 b5 Na6 h5 Nb8 Bg2 g6 Be4 gxh5 g6 h4 g7 Qd6 Bd3 Qd8 Bg6 fxg6 Kf2 Ke7 Kg2 Kf6 d4 Kf5 b4 Ke4 b6 c5 e3 a5 b5 h6 b7 h3+ Kh2 a4 d6 f3 d5 f2 d7 f1R b6 a3 d6 a2 Qe2 c4 Nf3 c3 Nh4 c2 Qg2+ Kd3 e4 Rf2 e5 Nc6 b8B Nge7 g8N Ra3 e6 Rb3 b7 Nf5 e7 Nb4 e8Q Rd2 Nc3 Nd5 Na4 Nc3 Nf6 Rg8 Rd1 g5 Nh5 Be7 Ng6 Bf8 Ba3 c1R Bc5 Kc2 Nb2 Bg7 Bf2 Be5+ Bg3 Rb1 Bc7 Bf4 b8R Ba6 Rc8 Be2 Re1 Bd1 Re5 Kc1 Ra5 Be5 Kg1 h2+ Kf1 Kc2 Bh4 Bf4 Qe3 Kc1 Qc5 Kc2 Qa3 h1R+ Qg1 Rh3 Qg2 Re3 Rd5 Re7 Ra5 Qe8 d8Q Qd7 Qe8 Qb5+ Kg1 Qd3 d7 Nd6 d8R Be5 Qe2 Bg3 Kg2 Rc1 Kh3 Rb5 Rb1 a1R Qg2 Ra2 Ra1 Rb1 Qc5 Ra4 Qa3 Rb3 Rd5 Rc4 Ra8 Kc1 Rdc8 Kc2 Qc5 Kc1 R1a5 Rb5 Qa3 Kc2 Na4 R1b3 Nb2 Kc1 Bb6 Kb1 Bg1 Nde4 Bh2 Bb8+ Qf3 Nd6 Qg3 Qe2 Qg2 Qd3+
1rrQbR1b/k7/7N/NR3p2/2br1NqR/1rQB3n/1B2p1QK/Rr5q w - - 0 1 legal: proof: h4 e5 f4 c5 a4 b5 axb5 g5 d4 cxd4 e3 gxh4 Qd3 Nc6 Qe2 e4 Qd1 Ne5 fxe5 dxe3 b4 d5 c4 Kd7 g4 Kc7 c5 Kb8 e6 h5 e7 a5 e8Q f5 c6 d4 b6 a4 g5 d3 b5 a3 g6 a2 g7 h3 b7 h2 c7+ Ka7 b8R d2+ Ke2 h4 Bg2 h3 Kf1 e2+ Kf2 e1R Kg3 e3 Qc6 e2 Qdc2 d1R Qg6 Nf6 g8N Rd4 Be4 Nd5 Bd3 Ba6 c8R Bg7 Qc3 Nf4 Nh6 Qg8 Nd2 Bf6 Rb6 Rb8 Bb2 Rb1 Nc4 Qg7 Na5 Re8 Ba3 Rb3 Bb2 Rh8 Rf8 Be5 Rff6 Rhc8 Rf8 Qg8 Qg4 Qc4 Qf3 Bh8 Qg2 Qb4 Nf3 Qc4 Nh4 Qa4 Ng6 Qc4 Rhb1 h1B Kh2 Qa4 Rc6 Qb4 Rc4 Qa4 Qg1 Bc6 Qg2 Be8 Rb4 Bb7 Rc4 Bd5 Rb4 Bc4 b6+ Ka6 b7 Ka7 Rb5 Qb4 Rh1 Qa4 Rag1 a1R Rd1 Rb1 Rdf1 Ne6 Rf4 Ng5 Rh4 Qa3 Nf4 Qb4 Kg3 h2 Rg1 h1Q Re1 Ra8 b8Q+ Ka6 Qd6+ Ka7 Qd8 Nh3 Rc1 Rab8 Rd1 Qf1 Kh2 Qf3 Rd5 Qb7 Rb5 Qg4 Rd2 Rg1 Rd1 Rf1 Ra1 Rb1 Ba3 Qbf3 Bc1 Qf1 Bb2 Qh1+
Qbq4B/K1pkBnB1/7n/p3rNn1/R1r1Q1Nq/q2nN3/8/QR4nB w - - 0 1 illegal: No possible last move
8/Kp4RN/p1qB2Qq/1RB3rn/N3Q2Q/1qnb3Q/2R3nb/3n1Bnk w - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 g5 h4 gxh4 f4 exf4 a4 Na6 b5 Nb4 b6 a6 Ba3 Na2 Bc1 Ra7 bxa7 Qd7 Rh3 Qxa4 Rh2 Qd7 Rh1 Qd8 Kf2 Kd7 a8Q Kd6 g4 Ke5 e4 c5 d3 h5 d6 f5 g5 h3 d7 h2 g6 h4 g7 h3 Qb8+ Bd6 Nc3 c4 Na4 c3 Rb1 f3 Ke3 f2 Qe1 c2 Ba3 c1N Bc5 Qb6 d8B Qb3 Bc7 Nf6 g8R Ne2 Rg7 Nh5 Rb2 Re8 Rc2 Rg8 Qa8 Be6 Qc8 Bc4 Bb8 Nac3 d4+ Kf6 d5 Bd3 Nf3 Ng1 Kd4 f4 Ng5 f3 Qe2 Bg3 d6 Bf4 Bg2 f1N d7 f2 e5+ Kf5 e6 Ne3 d8Q f1N Bbd6 Ned1 Nh7 Nfe3 Bf1 Ng2 Qh4 Bg3 Qe3 Bf4 Qc6 Bg3 e7 Bf4 Rg4 Rg5 e8Q Bg3 Re4 Bf4 Re7 Bg3 Rg7 Bf4 Qhe1 Kg4 Qg6 Bg3 Qce8 Bf4 Q3e6+ Kf3 Qh4 Ne1 Rb2 Nf2 Bb6 Qa2 Be2+ Kg2 Qh6 Ng3 Rb5 Qb3 Q4h5 Be5+ Kc5 Ngf3 Rf1 h1Q Qe6g6 h2 Ba7 Ng1 Kb6 Nfh3 Rf4 Nf2 Re4 Nfd1 Bf1+ Kf2 Rg4 Qe4 Rh4 h1Q Qg4 Qed5 Qgd7 Kf3 Rh2 Qe4 Rc2 Qc6+ Ka5 Qh4 Bac5 Bf4 Qh3 Qh5 Qgf5 Qh4 Qhg6 Qh6 Qh4 Nh5 Qfc8 Bh2 Qe5 Qd7 Kb6 Qc7+ Ka7 Qc6 Be2+ Kg2 Bf1+ Kh1 Qee4+ Ng2 Qd7 Qb4 Qdh3 Qb3
RB3qqR/prqNbQQ1/k1p2Br1/2nn1NN1/2q5/3B1q2/3B4/1r3R1K w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 d4 Kd7 b4 Kc8 e4 Kb7 g5 f5 e5 h5 d5 f4 b6 h4 b5 c3 g6 c2 e6 f3 d6 c6 d7 h3 e7 h2 e8R Bg7 Na3 Bc3+ Bd2 c1R g7 Qh4 d8B Rh7 Bd3 Rb1 Nh3 Na6 Nc4 Nc5 Ne3 Bf6 Nf5 Qc4 Ng5 Ne7 g8Q Nd5 Qf7+ Be7 Rf1 h1Q Rh8 Rb2 Rb1 g1Q Qe2 g2 Qe5 Rb8 Qeg7 Qgh2 Kf2 Qc7 Rbe1 Qh5 Kg1 Rh6 Re4 Rb1 Rd4 Bd6 Bf6 Rg6 Re4 Qg4 Ree8 Be7 Ref8 Qd8 Re8 f2+ Kh2 Qf3 Reg8 Kc8 b7+ Kc7 Re8 Kb6 Ref8 Rc8 b8N Rc7 Nd7+ Kb7 b6 Ka6 Rd1 f1Q b7 Q1f2 b8B Rcb7 Rf1 Qc8 Bg3 Qc7 Ra8 g1Q+ Kh3 Qff4 Bh2 Q2f3+ Bg3 Qge3 Kh2 Q3g4 Kh1 Qe6 Qe8 Qg8 Qef7 Qfd6 Nb6 Qdd8 Nd7 Qdf8 Bge5 Qa5 Bb8 Qc7 Be3 Qe2 Bd2 Qf3+
2N5/rb1QK1Rr/1nNqQB2/6R1/1n2qp1r/kB3N1B/1qn1p3/N3rR2 w - - 0 1 legal: proof: h4 e5 f4 c5 a4 b5 axb5 g5 d4 cxd4 e3 gxh4 Rh3 Bg7 Rh2 e4 Rh1 Be5 fxe5 dxe3 Ke2 Ke7 b4 a5 c4 h5 g4 d5 b6 f5 b7 a4 b5 d4 c5 f4 g5 a3 c6 h3 e6 Kd6 g6 Kc5 b6 Kb4 g7 h2 c7 a2 e7 h4 e8Q h3 Nf3 Rh7 Rg1 h1Q Bb2 h2 Qe6 Ne7 g8B Nec6 Bh3 Ra7 Rg7 Nd7 b8R Qf6 b7 Nb6 Na3 Rh4 Rb1 a1N Nc2+ Ka4 Ra8 Nb4 b8N Bb7 c8N Qe5 Qd3 Qc1 Qd2 h1R Nc6 Qd5 Bc3 Qb2 Rf1 Rh7 Bg2 R1h4 Bh3 Nb3 Na1 d3+ Kd1 Qc4 Bf6 e2+ Ke1 Qd5 Kf2 e1R Kg2 e3 Rg5 Ra5 Ra7 e2 Qd1 d2 Kf2 Ba8 Rag7 Bb7 Nfd4 Qb1 Qf7 Qd8 Kf3 Qb2 Ke4 Ra7 Kf5 Qe8 Nf3 Ka3 Qc4 Qg6+ Ke6 Nd4+ Ke7 Ndc2 Qe4 Qf5 Bb3 Qg6 Qe6 Qe4 Qc1 d1Q Qd2 Nd7 Qd3 Nb6 Qd7 Qd6+
3b2kB/2QqR1nr/1qB3qq/1NQpQR2/3RQ1b1/2BKpr2/3r1b2/N7 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g6 axb5 Na6 d4 cxd4 g5 fxe4 f4 Nc7 f5 gxf5 g6 f4 Rh2 Ne6 Rh1 Ng5 hxg5 Qa5+ Kf2 Qc7 Ke1 Qd8 Ke2 d5 c4 a5 b4 h5 g7 Kf7 g6+ Ke6 b6 a4 c5 e3 c6 f3+ Kd3 h4 b7 h3 b8B h2 c7 e2 b5 e1B b6 f2 b7 a3 Qa4 a2 Bd2 Qd7 Nc3 Nf6 g8R Ne8 g7 Kf7 Nf3 e5 Rd1 a1Q Nb5 Rh7 Bc3 Be7 Nd2 Bd8 Nb3 Qb2 Na1 Ra7 Qc4 Ra3 Qc5 Rb3 Rg1 h1Q Rg5 Qh6 Be2 f1Q Rf5+ Bf6 Ba7 Qg1 b8Q Bf2 Bf1 Qgg6 Rf8+ Ke6 Rf7 Bd8 g8Q Ng7 Qgf8 Ra3 Qc4 Qb4 Qfc5 Qa5 Be2 Qb6 Rd2 Rb3 Bd1 Ra3 Ba4 e4+ Ke2 Ba6 c8Q Rb3 Qc8c7 Bc8 Ba5 Rf3 Bc3 e3 Kd3 Bg5 Rf8 Bf6 Re8+ Kf7 Re7+ Kg8 Qe5 Bg5 Qbc7 Bgh4 Na3 Bg5 Bc6 Bf6 Nb5 Bg5 Ke2 Bgh4 Qd3 Bf6 Qde4 d3+ Kf1 B6h4 Rd1 d2 Ke2 Bf6 Kd3 Bg5 Rb1 Bf6 Rb4 B6h4 Rd4 d1R+ Bd2 Rg1 Bc3 Rg2 Re6 Bd8 Re7 Qde8 Rf4 Bg4 Rf5 Qa6 Bb6 Qd7 Bba5 Rh2 Bb2 Qb6 Bac3 Rg2 Q5f4 Qgh5 Ra4 Rg1 Bd4 Q5g6 Bbc3 Ne8 Bh8 Ng7 Qfe5 Re1 Rb4 Re2 Rd4 Rd2+
2kN1n2/q3nQB1/3n2Q1/1p1q1RN1/1R1BB2K/3p3r/QB1rb1Rr/q6q w - - 0 1 illegal: No possible last move, all moves rejected
1k1qQq2/1nr2p2/4N2K/2bQ2nR/2NBN1pn/2Q5/2Rn1bb1/1Bq1N2B w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 h5 e4 d5 b4 Kd7 c4 Kc7 e5 h4 b6+ Kb7 b5 h3 e6 g2 e7 a4 e8N h2 g6 d3 Ke3 d4+ Kf4 a3 g7 a2 c5 d2 c6+ Ka8 c7 d3 b7+ Ka7 b6+ Ka6 Nf6 Nd7 Kg5 Ne7 g8B Nf5 b8N+ Kb7 Bh7 Nc5 Na6 Nh4 Nf3 g1B Bb2 Bf2 Bd4 Ka8 Bh3 Bb7 Ne1 Bg2 Na3 Nb7 Nc4 Bc5 Rc1 a1N Rc2 Qf8 Ne4 Nb3 Qf3 d1Q Kh5 Qe7 Kh6 d2 Qd3 Rb8 c8Q Qc1 Qc6 Rd8 Nc7+ Kb8 Qd5 Rd7 Ne6 Rc7 Qc3 Qd8 Bg6 Qa3 Bh7 d1Q Bf5 Nd2 Bg6 Bf1 Bg2 Qdc1 Bf3 Na5 b7 Bg2 Rf1 h1N Bh7 Ng3 Rh1 Ng6 Rh5 Nh4 Bg6 Bf1 Bh1 Bg2 Nf6 Nge4 Bf5 Ng5 Ne4 Ka7 b8Q+ Ka6 Ne5 Nb7 Nc4 Qb4 Qc8 Ka7 Qcd7 Kb8 Qe8 Qba3 Ra2 Ba7 Nf6 Qb4 Bb1 Qd6 Ne4 Bc5 Rc2 Qf8+
r1nbQ2B/3q1R2/5RN1/3bQQ2/1pK1pn2/1nn4N/b4Bk1/RB2nRn1 w - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 c4 g5 h4 gxf4 g5 Ra6 b4 axb4 h5 d5 cxd5 Rg6 hxg6 fxe4 Ke2 Kd7 a4 Kd6 d4 c5 g7 h5 a5 e5 a6 c4 g6 f3+ Ke3 c3 a7 f2 a8Q b3 Ra5 b4 Qa7 c2 Qe2 h4 Qf7 h3 Ra1 h2 Bb2 c1N Qf5 Qd7 Nh3 Nf6 g8R Nh5 g7 Nf4 Nd2 Nc6 Nf3 Be7 Rf8 Bd8 g8Q Na7 Rf7 Ba6 Bg2 Nc8 Nh4 Bc4 Rf1 h1B Qe8 Rg8 Bc3 b2 Ng6 b1N Be1 Nb3 Rf6+ Kc7 d6+ Kc6 d5+ Kc5 Qeh5 Nc3 Qh8 Nd4 Bf3 Ba2 Be2 Nf3 Bd3 Bg2 Bb1 Ng1 Kd2 Kd4 Rf7 Qa7 d7 e3+ Kc2 e2 d6 Ke3 Qg7 Bc7 d8R Bgd5 d7 e4 Qge5 Kf3 Rf6 Kg2 Rf7 Nb6 Rc8 Bd8 Rc6 Nc8 Rcf6 Bb6 d8B Qd7 Be7 Bd8 Bf8 Rh8 Bg7 Rf8 Bh8 Rg8 Bd2 Rf8 Be3 Rg8 Rd1 f1N Bf2 Nd2 Re1 Nb3 Rf1 Nd4+ Kd2 Nb3+ Ke3 Nc1 Kd4 e1N Kc5 Rf8 Kd4 Nb3+ Ke3 Nb6 Q8e6 Bc7 Qe7 Ra8 Qe8 Na5 Kd4 Nc8 Kc5 Bd8 Kd4 Bc6+ Kc5 Nb3+ Kc4 Bd5+
Nb1r4/4N1qQ/1r2rQ1n/Q1p3Rr/B1R1Knr1/3p2R1/r5B1/4BnkB w - - 0 1 legal: proof: f4 e5 h4 exf4 d4 g5 b4 gxh4 a4 b5 d5 d6 a5 Nc6 Kf2 Ba6 c4 Qd7 cxb5 Qc8 b6 Qe6 b5 Bb7 a6 Qxd5 axb7 Nb8 Ra6 Qd3 Ra1 Qd2 Kf3 Kd7 e4 Ke6 g4 Ke5 g5 Kd4 e5 h5 e6 c5 g6 f5 e7 a5 e8B d5 g7 h3 Ra3 a4 Rh2 h4 Re2 h2 Bf7 h1R Bh5 h3 Re7 h2 Qc2 Nh6 g8B Na6 b8R Nb4 b7 Ra6 b6 Nd3 Bg2 Qc3 Rg7 Bd6 Nh3 Re1 Be8 h1R Rg5 Re6 Bd2 Qa1 Rd8 Bb8 Nc3 Rg1 Rb3 a3 Ba4 a2 Be1 Qb2 Ra3 a1R Rd6 Ra2 Nb5+ Ke5 Qb1 d4 Nc7 Qa1 Bh1 Rg4 Na8 Qc3 Bh7 Rd8 Qc2 Qa1 Rc3 Qb2 Rc4 Qa1 Rd7 Qc3 Rdg7 Qb2 Ke2 f3+ Kd2 Ke4 Nf4 Qa1 Ng6 f4 Bg8 Qb2 Ne7 Qa1 Bf2 Qg1 Be1 Qg3 Qb2 Qg1 Kc2 Ke3 Bh7 f2 B7e4 f1R Beg2 f3 R7g6 Be5 b8Q f2 b7 Rab6 Qc7 Nf4 b8Q Ke2 Qba7 d3+ Kc1+ Ke3 Qa5 Bd6 Qd7 Bb8 Qf6 Ke2 Bh3 Qg3 B3g2 Rg1 Qb7 f1N Rg8 Rh4 R8g7 Rh5 Qe4+ Ne3 Qh7 Nf1 Rg8 Qh3 Rg3 Qg4 Rg7 Qg6 Rg8 Qf7 R8g5 Qg7 Be4 Be5 Rh3 Rg4 Rg3 Nh2 Bec6 Kf1 Bcg2+ Kg1 Kd1 Ra3 Kd2 Ra2+ Ke3 Nf1+ Ke4 Bb8+
1nB2q2/1N1K1n2/r5pp/nQN2BQ1/B1n2q1b/qRRN3r/3k2qR/N7 w - - 0 1 illegal: No extended proof kernel
1Q1BbqB1/Q1RQRrBp/1pnK4/b5b1/3N2R1/1Q2N3/2n2n1b/k1n3q1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 g5 h3 Ra6 h4 Rg6 Na3 g4 Nb1 Rg5 hxg5 fxg3 d4 Kd7 Kd2 Kd6 Ke3 f5 Kf4 c5 a4 b3 e4 b6 g6 g2 g7 b2 a5 c4 a6 g3 a7 c3 a8Q c2 Ra7 Ba6 Nc3 b1Q Nf3 g1B Rc7 g2 Bc4 Bb5 Qa7 Be8 Rh4 Nf6 g8Q Ng4 Bb2 c1N Qb3 Nc6 Nd1 Nf2 Ne3 Bh2+ Qg3 g1B Rg4 Rg8 Ba1 Rg7 Bc3 Rd7 e5+ Ke7 e6 Kf6 d6 Rf7 d7 Bb4 e7 Ba5 Ne5 Qb8 d8B Qc8 d5 Qa1 Kf3 f4 d6 Qb8 d7 Qc8 Nd5+ Ke6 Bb2 Kd6 Ne3 Kc5 Ng6 Qb8 Bg7 Qb1 Ne5 Kd4 Qd1+ Kc3 Bd5 Kb2 Qb3+ Ka1 Be6 Rf8 Bg8 Rf7 Qh3 Nfd3 Ke4 f3 Kd5 f2 Kd6 f1N Qg3 Nf2 Nf3+ Ne5 Nd4 Nc6 Nc4 Ne3 Qf4 Nc2 Ne3 Bg3 Qe5 Bh4 Qf5 Bg5 Qfd3 Rf8 Qd1 Bg6 e8R Bh2+ Re5 Rf4 Re7 Be8 Qdd3 Ne5 Qdb5 Rf7 Qc6 Qc8 Qcb7 Qa8 Qbb8 Nc6+ Rf4 Qb2 Qbb7 Qc8 Qbb8 Ne5 Rg4 Ne2 Qb4 Qb1 Qb3 Qb7 Nc4 Qf3 Ne3 Qg1 Rc8 Rf5 Bc7 Nc1 d8Q Rf8 Qd7 Qf7 Bd8 Nc6+ Be5 Qg7 Rc7 Rf4 Bf6 Qf8 Bg7 Rf7+
K3B2b/prB1Q1p1/1b1qR3/rB1N4/q1QR2Q1/B2N4/N2r1qr1/1k4rb w - - 0 1 illegal: Other
rN1Q2BR/6Qq/rp2K2p/5bR1/rN1rk3/2q1b3/r1rQr3/RBB1B3 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Be3 g5 Bf4 Ne7 Bc1 f4 h3 Nf5 gxf5 Nc6 h4 g4 Bd2 Ne5 Be3 Nf7 Bc1 Ng5 hxg5 Kf7 Bg2 Ke7 Bf1 Ke8 Kd2 Kf7 Kd3 d5 c4 b6 e4 g3 a4 f2 e5 f3 f6 Kg6 c5 Kf5 f7 g2 a5 h6 g6 b3 c6 b2 a6 Qc7 a7 Bc5 e6 Re8 Ne2 g1R f8B Rg4 Na3 b1Q+ Nc2 Rf4 Bg2 f1R e7 f2 g7 Rg1 g8Q f1R Qg7 R1f2 Qd2 Qb4 Bf3 Rgg2 Rg1 Be6 Bh5 Bf7 Bf3 Qa5 Nb4 Bg6 Bh5 Rec8 e8Q Qf7 c7 Rfg4 Nf4 Re2 Na6 Qg8 Qd8 Qh7 Nb8 Rh4 Kc2 d3+ Kb3 d4 Kc4 Ke4 Nd5 Rgh2 Rg5 Qc3+ Kb5 Rg4 Kc6 Rhg2 Kd7 Rh4 Qe1 d2 Ke6 d1R Qd2 d3 Nb4 Be3 Bd6 Rf1 Bg3 Rf5 Bg4 Ra5 Be1 Ra6 Bf5+ Kf4 Qb2 d2 Bb1 d1R Qc2 Rd4 Qd2 Rc4 Qdh8 Rd8 c8B Rdd4 Qd8 Rc5 Bd7 Rca5 Be8 Ra2 Bf7 Rgf2 Bg8 Kf3 Nc2 Rda4 Nb4 Rd4 Qd3 Rec2 Qd2 Ke4 Nd7 Rc8 a8R Re2 Nb8 Rc5 Ra7 Rca5 Re7 Ra8 Re8 R5a6 Bf7 Rc4 Rh8 Rd4 Bg8 Bf5+
QR2NR2/1Q3NK1/3Rr1nr/qnp5/BB1p1n1r/nq2k1q1/4BN2/4Rq2 w - - 0 1 legal: proof: h4 a5 b4 axb4 f4 e5 h5 exf4 h6 b3 c3 gxh6 Nf3 h5 Ng1 h4 Rh2 b5 Rh3 b2 Rh1 b4 d4 b3 d5 Bb4 cxb4 c5 Kd2 Bb7 Ke1 Bc6 dxc6 Ra4 Be3 Ra3 Bc1 Ra8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 f3 a4 f6 b5 f2 b6 h3 b7 h2 g5 h4 a5 h3 a6 Ne7 c7 Rh6 c8B Qa5 g6 Nbc6 b8R Nd4 a7 Nb5 g7 Ng6 Nd2 b1N g8R b2 Ngf3 N1a3 Rf8 b1Q+ Qc2 Qb2 Qb1 Qb3 Ne5 Qg3 Rg1 h1N Nf7 h2 Bb7 Qb3 Bc6 Qg3 e3 d6 Be2 f1Q Qb4 Qd1 Re1 Qda4 Rb1 Qb3 Rb6 Rd8 a8Q Re8 Bb2 Re7 Bc3 Re8 Rb8 Re7 Rbd1 d5+ Kd3 Kf5 Ne4 Re6 Nf2 Qd6 e4+ Kf4 Rd2 f5 Be8 Ng3 e5+ Nc4 Rdd1 h1R Rd2 R1h4 Bc6 Na7 Ba4 Nh5 Qbb7 Nb5 Rdd1 Nca3 Rd2 Rf6 e6 Qe5 e7 Re6 e8N d4 Rb2 Kg3 Rd8 f4 Rd6 f3 Rbb1 Kf4 Rb2 Qa2 Bb4 Qg5 Rbb1 Qg3 Rb3 Nc2 Kc4 Nca3+ Kd5 Qb2 Kc6 Qc3 Kd7 Ke3 Rb2 Nhf4 Rbb1 Qb3 Rb2 Re4 Rbb1 Ne5+ Ke7 Neg6+ Kf6 Re5 Kg7 Re6 Ne4 f2 Rb2 f1Q Nf2 Rh3 Qba7 Nc7 Bc3 Qc2 Rb8 Ncb5 Q7b7 R3h4 Bb4 Qb3
1b1B2K1/3pRn1N/BQ1qbQ2/B1nNn1p1/1Nq5/3q1R1R/6kb/bNn5 w - - 0 1 legal: proof: f4 f5 e4 fxe4 h4 b5 g4 c5 d4 g6 h5 a5 b4 Ra6 f5 Rf6 g5 axb4 Qg4 h6 Qd1 Rh7 Bf4 Rg7 Bc1 cxd4 gxf6 g5 Na3 Rg6 hxg6 h5 Nb1 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 e5 Kg3 e3 a4 h4+ Kg4 e4 Kh5 h3 c4 d3 c5 b3 g7 Kf7 a5 b4 a6 e2 c6 e1B a7 e3 a8N b2 c7 d2 Bd3 h2 Ba6 e2 Qa4 d1Q Qa5 b3 Bd2 Nh6 g8R Bg7 Bc3 Nc6 Qb4 Bg3 Re8 e1B+ Qg4 Qd6 Ra3 Bb7 c8Q Ne5 Ba5 Q8c7 Qf3 Bd5 Qd8 Be6 Nh3 Qc4 Nb6 Bb4 Rf1 h1N Nd5 Nf2 Nhf4 Bh2 Qb6 Ne4 Nd3 Nc5 Rh1 Bd2 N3b4 Bdf4 Qc3 Bfg3 Rf1 Bf4 Rf3 Bh8 Nd2 b1Q Re7+ Kf8 f7 Kg7 f8N+ Nf7 Rh3 b2 Nh7 Qbd3 Rb3 b1N f6+ Kg8 Qd4 Nc3 Nb1 Ne2 Qf2 Nc1 Rf3 Nd8 f7+ Kg7 Rh3 Qdd4 Rbg3 Qdd3 Rf3 Bfg3 Re8 Bf4 f8B+ Kf7 Be7 Kg7 Ne3 Ndf7 Bd8 Bfg3 Re7 Bf4 Nf8 Kf6 Ned5+ Kf5 Nh7 Ke4 Qb2 Ng6 Qf2 Ba1 Qb2 Bfg3 Qg7 Nge5 Qf6 Nc6 Kg6 Nce5+ Kg7 Bf4 Kg8 Bfg3 Rf5 Bf4 Rh5 Kf3 Rh4 Kg2 Rh3 Bfg3 Rf3 Qc6 Nf8 Ng4 Rh5 Bb8 Rhh3 Qd6 Nh7 Nge5
1Q4B1/pr1qK1B1/N1q2Q2/1qbR1r1B/bRb2pQN/4kN2/r6B/r6q w - - 0 1 illegal: No possible last move
bB3Q2/N1N1K3/5QR1/2bNQnr1/k2p1p2/B2rq2p/1r4nq/BqRN4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 gxh5 g6 h4 Ke7 h6 Ke8 h7 Be7 Be3 Bd6 Bc1 Bf8 h5 Ne7 h6 Nd5 Bh3 Nf6 Bg4 Ng8 Bh5 gxh5 Kf2 a5 Kf3 d5 b4 Kd7 e4 f5 c4 d3 c5 h4 e5 d2 b6 Kc6 e6 Kb5 b7 h3 c6 a4 c7 a3 e7 a2 e8N Na6 b8Q+ Bb7 c8N Qe7 Ba3 Nc5 Ne2 Nd3 Qf1 d1R Nc7+ Ka4 b5 Ra5 b6 Ba8 b7 Nf6 Rg1 Ne8 Rg6 Nd6 Na7 Rg8 h8Q Rb5 h7 Rb2 Qf6 Ne1+ Kf2 f3 Kg3 f2 Kh4 Qe6 Kg5 Ng2 h8B Qe3+ Nf4 Rd3 Qe1 Be7 Qf8 f1Q b8B Qfg1 Qe2 Qh2 Nc3+ Ka5 Rh1 a1Q Rc1 Qb1 Nd1 Ka4 Qh5 Nb7 Bg7 Bc5 Qh8 Nd6 Qe5 Nb7 Kf6 Nd6 Ke7 Rc2 Bh6 Rb2 Qhf6 d4 Nfd5 Qf3 Bd2 f4 Bc3 Qe3 Rh6 Rg5 Rg6 Rf2 Ba1 Rfd2 Qee6 Rb2 Qee5 Nf5+
6r1/3Q1Q2/b1N3np/n1q2BN1/2Q1BR1R/rq1K1B1Q/1k2p1p1/R3b1qr w - - 0 1 legal: proof: h4 f5 g4 c5 a4 b5 d4 cxd4 Bf4 g5 axb5 gxh4 e4 Nc6 exf5 Nb8 Bg3 hxg3 Ke2 Kf7 c4 Kf6 f4 a5 b4 e5 g5+ Kg7 f6+ Kg6 b6 Kf5 c5 Ke4 b5 d5 f5 g2 c6 a4 b7 h6 b6 a3 g6 a2 g7 Bc5 f7 Rh7 f8R Qc7 f6 Rh8 f7 Bb4 Na3 Bc3 Nc2 Ra3 Nh3 Ne7 g8B Ng6 Bh7 Rg8 Nb4 Qe7 c7 Qc5 Qb3 Nc6 b8Q Na5 Qa7 Bb7 Qc4 Ba6 Rb1 a1Q c8B Bb7 Nc6 Ba6 b7 Qa2+ Kd1 Qb3+ Kc1 Ke3 b8Q e4 Qh2 d3 Ng5 d4 Be6 Qd5 Be2 Qc5 Rb2 d2+ Kb1 d3 Qh3+ Kf2 Bf3 e3 Qd7 e2 Bf5 Ke3 Rc1 d1Q B5e4 Qbb5 Rb4 d2 Bf5 Qe1 Kc2 d1R Ra1 Qf2 Ra4 Rh1 Rb4 Qg1 Ra4 Kf2 Kd3 Qb3 Rb4 Qc1 B5e4 Ke1 Bf5 Kd1 B5e4 Nh8 Bhf5 Ng6 Bd5 Nh8 Bh7 Qe7 Qb5 Qa4 Rh4 Qc5 Qc4 Qab4 Be6 Qb3 Bhe4 Ng6 Rc8 Rg7 f8Q Rg8 Qfg7 Qe7 Rf8 Qc5 Ra2 Qa1 Rff4 Kc1 Qgf7 Kb1 B6f5 Kc1 Rd2 Kb1 Rd1+ Kb2 Rf1 Qe1 Rg1 Qef2 Rd1 Qg1 Ra1 Be1+
BK5n/1Q1b1R2/2nNp3/2kB2r1/2brQ1pB/1p2RqrN/R3q3/1qQ1Q3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 axb4 e4 fxe4 g4 c5 d4 h5 Ba6 hxg4 Bf1 e6 Qd3 c4 Qd1 Bc5 dxc5 Qe7 Kd2 Qg5+ Ke1 Qd8 Ke2 Kd7 Ke3 b5 Kf4 g5+ Ke5 c3 h4 b3 f4 c2 a4 b2 d6 Kc6 f5 g3 d7 b4 f6 g4 f7 b3 f8R g2 h5 e3 h6 e2 h7 Na6 a5 Nf6 Nd2 b1B Ra2 e1Q+ Ne4 Qb4 Rh3 Qa3 Re3 Qb6 d8Q Qb5 Q8d5+ Kc7 c6 Rg8 h8Q Nh5 Nh3 g1R Nd6 Nf4 Qg7+ Bd7 Rf7 Qe2 Bg2 Nb8 a6 Kb6 Qe4 Kc5 c7 Rd8 Bb2 c1Q a7 Bd3 Qe1 Bc4 Bc3 Qa4 c8Q+ Qc6 Qg5 Qb1 Qb7 Rg8 Ba5 Rg6 Bd8 Rg7 Bf3 Rg3 Qh6 Rg6 Bh4 Rg7 Qf5 Rg8 Bd5 Rd8 Qe4 Ng6+ Kf6 Nh8 Ke7 Rg8 Qhf4 Rg5 Kd8 Qb5 Kc7 Nc6 Qff1 Rd8 a8B Qb4 Qc1 Qc3 Qfe1 Rf8 Rh7 Rf4 Rf7 Qf6 Qg6 Rd4 Qe4 Na7 Kb8 Qff2 Rc2 Qff3 Ra2 Nc6+
R6Q/1k3pQ1/qN3n1N/r3B1b1/1n5q/BpK1Q3/1p1nRr2/2B1bNQr w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 Bg2 g6 Be4 f3 Bf5 gxf5 g5 f4 h3 Bg4 hxg4 Qe7 Bb2 Qd7 Bc1 Qd8 a4 Kd7 e4 Kc8 d4 h5 Kd2 b5 a5 c5 e5 c4 e6 h4 e7 h3 e8Q f2 d6 f1R d5 h2 g6 f3 d7+ Kb7 d6 b3 g7 b4 a6+ Kc6 g5 f2 g6 b2 a7 b3 Kc3 Qe7 d8B+ Nd7 Bc7 Qe2 Qe3 Rh6 Nd2 Ndf6 d7 Rh5 d8B Qg4 Be7 Qe6 Nh3 Kb7 Ba3 Ne7 g8Q Nc6 g7 Nb4 Nf4 Qa6 Be5 Rh7 Rg1 h1Q Nd5 Qh4 Rg2 Rh1 Qh8 f1N g8N Bh6 Re2 Bg5 Qg7 Rh8 Ne4 Nd2 Qdg1 Rh2 Ra2 Rf2 Nb6 Rh5 Nh6 Rh8 Kd4 c3 Ra1 c2 Kc3 Rd8 Ra2 Rd5 Ng3 Ra5 Nf1 Qe4 Bd4 Rh1 Ra1 Qh4 a8Q+ Kc7 Qah8 Kc6 Be5 Kb7 Qd3 Nc4 Bcf4 c1B Qh3 Be3 Qe6 Bc5 Bc1 Nd2 Qh3 Bce3 Qhg3 Bef4 Qe3 Bg3 Nd5 Rf5 Bd4 Ra4 Nb6 Qb5 Be5 Be1 Ra2 Rf2 Ra1 Nc2 Bf8 Ra7 Ra4 Ra6 Ba3 Nb4 Ra5 Qa4 Rd5 Qb5 Rd8 Ra5 Ra8 Qa6
k2n3R/b2QRR1N/1n2nB1B/B1N5/pr3n2/b3q1r1/2pK1p2/1Q3nQR w - - 0 1 illegal: No possible last move
n1NQr1k1/4q2R/3Q3R/1R1Npp1n/2nBb2N/2p3nK/B7/2nbQNr1 w - - 0 1 legal: proof: a4 b5 axb5 d5 h4 g5 c4 dxc4 d4 gxh4 Kd2 Qd7 Kc3 Qf5 e3 Qxf2 d5 Bg7+ Kb4 Bd4 exd4 Qf6 Kc3 Qf2 g4 Kf8 b4 a5 d6 c5 g5 f5 d7 e5 d8N h5 g6 h3 g7+ Ke8 d5 h4 b6 h2 b5 h3 d6 a4 b7 a3 b6 a2 d7+ Ke7 Bb2 Na6 b8Q Bb7 Nf7 Nf6 Nd2 Nc7 Qe1 Be4 b7 Rg8 Ngf3 Qh4 Nd6 Nh5 Nc8+ Kf7 d8Q Qe7 Nh4 Bc2 Bd3 Bd1 Nf1 Re8 Kd2 c3+ Ke3 c2 Kf2 c1N g8N c4 Rb1 a1N Nf6 Nab3 Nd5 Ra1 Bd4 c3 Bc4 Nd2 Rb5 Na8 Ba2 Nc4 Qbd6 Kg8 b8R Rb1 Qa6 Ra1 R8b6 Rb1 Rh6 Ra1 Nd2 Rb1 Qad6 Ra1 Rf1 h1N+ Kg1 h2+ Kg2 Rb1 Kh3 N1g3 Rh1 Ra1 Nf1 Rb1 Rg1 h1B Rg2 Ra1 Rgb2 Bhf3 Rb7 Be4 R2b5 Rb1 Rd7 Rb2 Ra7 Rg2 Rab7 Rg1 Ra7 Qf6 Rah7 Qe7
4Bq2/1Q2B1kp/1n3N1r/4R3/r2Qr1bQ/n1r2Rp1/6Kp/RRN1Nb1n w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 f5 d4 cxd4 h3 fxg4 Kd2 gxh3 e3 d5 Ne2 e6 Bg2 d3 Bf1 Bc5 Kc3 d2 Ng1 d4+ Kb3 d3 Kc3 Bd4+ exd4 Ba6 Qe2 Bb7 Qd1 Bc8 f4 Kf7 b4 a5 d5 g5 Kd4 h2 Ke3 g4 Kf2 g3+ Kg2 a4 c4 e5 b6 e4 b7 e3 c5 e2 f5 e1R b5 a3 f6 a2 d6 Bf5 b6 Qd7 c6 Qc8 d7 Qc7 d8Q Re5 Nf3 Qd6 c7 Nh6 c8R Bg4 Ba3 Ra7 Ne1 Re4 Nc3 Nd7 b8Q Qf8 b7 Raa4 Be7 Nb6 Ne2 Kg8 f7+ Kg7 Rb1 a1N Nc1 Nc2 Rc5 Na3 Re5 Be2 Qbc7 Ng4 b8N Nf2 Qb7 Bg4 Rg1 Nh1 Nd7 Be2 Nf6 Bg4 Qe2 d1R Qb2 d2 Bb5 Be2 Be8 Bf1+ Kf3 Rg8 Qbd4 Rh8 Qdc8 Rg8 Qh3 Rh8 Qh4 Rg8 Ncd3 Rc1 Ra1 Rc3 Rb1 Be2+ Kg2 d1B Nc1 Bc4 Rf1 Bg4 Rf3 Kh8 Ra1 Rg6 Rb1 Rh6 Ra1 Qg8 f8R Be2 Rf7 Qf8 Rg7 Bc4 Rgg5 Bd3 Rb5 Be2 Rge5 Kg7 Rbb1 Bf1+
Rn3B2/RQ1npRn1/pb1pQ1bQ/2N1B1q1/4n2r/8/b1kN1K2/2rNR3 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 h4 Kf7 c4 g3 b4 g2 g6+ Kf6 c5 Ke5 c6 Ke4 h5 d3 b6 d2+ Kf2 Kd3 f6 f3 b5 d6 f7 Bg4 c7 Nh6 c8R Ng8 g7 Na6 b7 Be6 b8N Ba2 b6 Nh6 g8Q Nf5 h6 Bg7 b7 Qa5 Ne2 g1N Nd7 Nb8 f8B a6 h7 Bf6 Bb2 Ng7 Qe6 Qg5 Qc1 d1B Be5 Bc2 Rc7 Ra7 Nd2 Ra8 Kf1 f2 Nc3 Nf3 Nd1 Bcb1 Qc6 Ra7 Nc5+ Kc2 Ke2 f1N Kf2 Ng3 Re1 Ne4+ Kf1 Nd7 b8R Nd4 Qb7 Nc6 Ra8 Ncb8 Ke2 Qg4+ Ke3 Bh4 Rf1 Qg5+ Ke2 Be1 Rf7 Bf2 Kf1 Rg8 h8Q Be3 Qh5 Rh8 Qhg6 Rh4 Qh6 Bd4 Qc8 Rb7 Ke1 Rb4 Rca7 Rc4 Qb7 Rc3 Na4 Bb6 Nc5 Bc4 Bh2 Bd3 Be5 Ba2 Rb1 Ng3 Kf2 Bg6 Nb2 Rcc4 Re1 Rc3 Nd1 Ne4+ Kf1 Rb3 Ke2 Rb1 Kf1 Rc1 Ke2 Nc3+ Kf2 Ne4+
5Qn1/2B2q2/QRb2b1B/Bp6/rB1Q2nR/1pK3rr/rNp1q3/2NN3k w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f6 Be2 f5 exf5 gxf4 g5 Nd7 Bf3 Nb8 Bg4 hxg4 d4 Kd7 Kd2 Kd6 h4 e5 a4 b5 g6 c5 a5 c4 h5 b3 f6 e4 h6 f3 f7 f2 g7 f1R h7 g3 a6 g2 a7 e3+ Kc3 e2 Ra6+ Nc6 Rh4 e1R Bh6 Rf4 Ne2 g1Q Rb6 Bd7 Nc1 Nf6 g8Q Re7 Qg6 Bg7 f8B Qf2 Qdg1 Rg8 h8Q Qe2 Qe3 Qc7 Qeg1 Rb8 a8N Rb7 Q1g4 Ra7 Q4f5 Be8 Qc8 Ra6 Qe4 Ra2 Qa6 Ng4 Qe3 Kd7 d6 Bf6 Qd3 Ke6 d7 Kd5 d8B Re6 Bb4 Qf7 Bc7 Ne7 Qd2 Rg5 Qf8 Ke4 Qd1 Ree5 d5 Kf3 d6 Kg2 d7 Ng8 d8B Bc6 Qd4 Rg6 Na3 Ref5 Nc2 Rh5 Ne3+ Kg1 Nd1+ Kg2 Bde7 Rg7 Ba5 Rgg5 Kb4 c3 Bed6 c2 Kc3 Ne3 Bdb4 Rg3 Rb8 Kg1 Nb6 Rfg4 Na4 Rf4 Rg4 Kh1 Nab2 Rhh3 Rh4 Rfg4 Rb6 Rf4 Qe5 Rfg4 Ba3 Rb4 Qd4 Ra4 B3b4 Ng4+
4r1Bk/bqb3Np/R1N1p3/1r3Q1B/1rR2nr1/2Q1p2q/nNBN2R1/4K3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 g4 Qc7 f5 Bb7 Bd2 Bd5 Bf4 gxf4 h3 Qd8 g5 Bf7 Nd2 Bh5 Nb1 Bg4 hxg4 Bg7 Rh2 Bh6 Rh1 Bf8 c4 Kf7 b4 Kg7 g6 d5 c5 a5 c6 f3 b6 a4 b7 d3 g5 a3 c7 e3 c8R a2 b5 d4 b6 Nf6 Rh2 Ng8 Na3 Nf6 Rc4 Qc8 Qc2 Nc6 b8Q Ra4 b7 Nb4 Qc7 Nfd5 b8N Qb7 Nc6 Nf4 f6+ Kg8 g7 f2+ Kd1 d2 Qf5 Ra5 Bd3 Rb5 Nf3 f1Q+ Ne1 Qh1 Rg2 Qh3 Nf3 Nbd5 Bc2 Nb4 Rc1 a1B Rb1 Bc3 Ra1 Na2 Qa5 Bb2 Qc3 Ng6 Ke2 d1R Nd2 Rb1 Qb4 Bc1 Qc3 R1b4 Kd1 Bb2 Ke1 Nc1 Ra2 d3 Ra1 Nf4 Ra2 Kf7 Ra1 Na2 g8B+ Ke8 g6 e6 g7 Bc5 f7+ Kd7 f8N+ Ke8 Ng6 Ba7 Qb3 Bf6 Nh4 Bd8 Qc3 Bc7 Bf7+ Kd7 Nhf3 Re8 g8B Kd6 Nh4 Kd7 Nb8+ Ke7 Nc6+ Kf8 Qb2 Ra5 Qc3 Re5 Bg6+ Kg7 Bh5+ Kh8 Qg6 Rf8 Nf5 Re8 Ng7 Rg5 Qf5 Rg6 Rd4 Rg4 Nac4 Rb5 Nb2 Rb4 Nb3 Rb5 Rc4 d2+ Kd1 Ng6 Ke2 d1R Nd2 Rb1 Qfe5 Nb4 Ra6 Na2 Qf5 Rb4 Na4 R1b3 Nb2 Nf4+ Kd1 Rb5 Ke1 R3b4
k2N1b1K/Br1p2B1/2rbN3/2B1qpQ1/n3R1q1/2R2R1q/N1p1R1q1/1Qn5 w - - 0 1 legal: proof: f4 e5 d4 exd4 g4 b5 c4 g5 cxb5 h6 a4 Ke7 b4 Rh7 a5 Ke8 a6 Rh8 b6 Bb7 axb7 gxf4 b5 h5 g5 Ke7 Bh3 Ke8 Bg4 hxg4 Kd2 f5 Kd3 a5 e4 c5 h4 g3 g6 f3 g7 a4 h5 a3 e5 a2 e6 g2 e7 f2 h6 f1Q+ Ne2 g1Q h7 Qgg2 Rh4 Qg3+ Be3 Qgf4 Nc3 Ra7 Rc1 a1B Na2 Na6 b8N Qg3 b7 Qfg2 b6 Nf6 g8Q Qdc7 Nf4 Nd5 Qg5 Nc3 Nc6 Na4 b8B Nb4+ Kc4 d3 b7 Rg8 h8B d2 Qb3 d1Q Qb1 Qh5 Rf1 Qd6 Rf3 Nd3 Be5 Qc7 Kd5 c4 Bc5 c3 Bh8 c2 Bf6 Ra5 Ba7 Rb5 Rg4 Rg6 b8R+ Kf7 e8R Nc1 Re2 Be5 Rb7 Ke8 Rb6 Rb2 Rb3 Rh6 Rc3 Rb7 Ne7 Kd8 Nc6+ Kc8 Nd8 Rg6 Bh8 Rc6 Nfe6 Qhh4 Rge4 Qhh3 Bab6 Kb8 Ba7+ Ka8 Bf6 Qb8 Bh8 Bc7 Bf6 Qgg4 Bfd4 Rd6+ Ke5 Qhg3+ Kf6 Rc6 Kg6 Bf4 Kh7 Qd6 Bf6 Qd4 Bg7 B4d6 Kg8 Qde5 Kh8 Q3h3+
4kb2/Q4r2/2b3qN/7N/Nq2p1pR/bp2Q1B1/2rRQNKB/q1n1qR2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b4 axb4 g4 hxg4 f4 f5 e5 Nd7 Bg2 Rh4 Be4 fxe4 f5 Ndf6 exf6 Rh8 Kf1 g5 h4 b5 d4 e5 a4 c5 d6 c4 f7+ Kd7 h5 c3 f6 b3 a5 g3 d5 g4 a6 c2 a7 e3 h6 e2+ Kg2 e1Q h7 b2 Bf4 c1Q Rh4 e4 Qe2 b4 Nc3 b1Q Na4 b3 Nh3 Ne7 Nf2 Rg8 h8B Bh6 f8N+ Ke8 Nd7 Rb8 a8Q Rf8 Qa7 Qa3 Be5 Qb6 f7+ Kd8 Ra2 Nc6 Nf6 Bd7 Rd2 Qab4 Nh5 Qa1 Qe3 Be8 d7 Nd4 Bd6 Ra8 Bhe5 Ne2 Bb8 Ke7 d8N+ Bd7 Bbc7 Bc6 d6+ Kd7 Bf4 Nc1 Be5 Rc8 Bf4 Re8 f8R Re7 Nf7 Bg7 Nh6 Rf7 Qe2 Bb2 Qe3 Ba3 Qe2 Q6a5 Qae3 Qf5 Bb8 Qg6 Qa7+ Ke6 d7 Ke7 Bfc7 Ba8 Be5 Rc2 Bbc7 Bc6 d8Q+ Ke6 Qdd3 Ke7 Bd4 Kd7 Qde3 Ke7 Rh8 Kd7 Bde5+ Ke7 Rh7 Ke8 Rh1 Qbd4 Rf1 Qb4 Kg1 g2 Bg3 Rf5 Kh2 g1B+ Kg2 Bh2 Bh4 Bd6 Bg3 Rf6 Bh2 Be7 Bcg3 Rf7 Nf5 Na2 Nhg7+ Kf8 Rh4 Nc1 Nh5 Ke8 Nh6 Bf8
2q3Q1/RQ1qb3/1p1pQq2/1bBB2nB/3N3k/n1KRr3/1R1qp2b/3Q1N2 w - - 0 1 legal: proof: e4 g5 c4 f5 exf5 b6 h4 gxh4 c5 a5 b4 Ra7 c6 Rb7 cxb7 axb4 g4 Kf7 a4 Kf6 f4 e5 a5 h5 a6 c5 a7 d6 a8R c4 R8a7 b3 Be2 e4 R7a6 b2 R6a2 h3 Ra8 c3 R8a3 h4 Bf3 c2 Nc3 b1Q Nce2 e3 Nd4 h2 Nge2 h3 Rd3 Nh6 Ra7 Nd7 b8Q Ne5 Ng3 Qd7 Qb7 Nc4 Nf1 Be7 Ba3 c1B Ke2 Nf7 Bc5 Qb2 Rg1 h1Q g5+ Kg7 f6+ Kg6 Rg4 Kh5 f5 h2 g6 Re8 g7 Na3 g8B Ng5 f7 Qc2 f8Q Bb2 Rg1+ Kh4 f6 Qc3 Bh5 Qhc6 f7 h1Q Qh6 Qcf3+ Ke1 Qf6 f8Q e2 Bd5 Qc1 Qg8 Qhh3 Rgg3 Qhf5 Rb3 Bc3 Rd3 Qa1 Qc6 Ba6 Qb7 Bb5 Rb2 Qc8 Qhg6 Qfd7 Qf5 Qc1 Kf2 Qb1 Ke3 Qc1 Nc2 Be5 Qfe6 Bh2 Nd4 Qa1 Qc2 Qe1 Qd1 Bc6 Rdb3 Ba4 Kd3 Bb5+ Kc3 Bf8 Qef7 Re5 Qe6 Re3+ Kb4 Be7 Rd3 Qdd8 Kb3 Qdd7 Kc3 Qxd2+
B1Nn1q2/2RB3p/p1Q1r1kr/3B1q2/qb3QK1/pr3NRQ/Q4qR1/2n5 w - - 0 1 legal: proof: c4 b5 a4 bxa4 f4 d5 cxd5 e5 Nh3 exf4 Ng1 g5 Qc2 g4 Qb3 Nd7 Qd1 Nb8 b3 g3 Bb2 Bf5 Bd4 Bh6 Bf2 Nc6 h3 Bg4 hxg4 Qe7 g5 Bg7 Qc1 gxf2+ Kd1 Bf8 g4 Qd7 Kc2 Nb8 Qd1 Qd6 Kc1 Qd8 d4 c5 Kd2 f5 e4 Kf7 Ke2 c4 Kf3 c3 g6+ Kg7 e5 a6 d6 a3 b4 c2 d7 c1Q g5 Ra7 e6 Qa5 d8Q Qb5 d5 Qa5 b5 Re7 d6 Qcc7 d7 Nh6 b6 Qb5 b7 Qc8 Rh3 Re8 e7 Qcc6+ Qd5 Qa4 Nc3 Qc5 Rg3 Qb3 Ra2 Qd4 Qc6 Qba4 Ne4 Ng4 Bg2 f1R+ Rf2 Rg8 Qdc8 Rb1 d8R Qa7 Rb2 Nf2 Rd7 Nd3 Rc7 Nc1 Nd6 Qb6 Rc2 Rb5 Qe6 Rb3+ Qe3 Qbd4 Nc8 Qf6 Bh1 Qf7 Rcg2 Qd5+ Kf2 f3 Qee6 f4 Qh3 Nd7 b8Q Ne5 Qb4 Nf7 Qbc4 Qf5 Q4e4 Rd8 e8B Bb4 Bd7 Rde8 Qe3 Nd8 Qe5+ Kf8 g7+ Kf7 Qee4 Re6 g6+ Kf6 Qe3 Re8 g8B Rd6 Bd5 Ree6 g7 Kf7 Kf1 f2 Nf3 Kf6 Qd2 Kf7 g8Q+ Kf6 Qgg4 Kf7 Ng5+ Kg6 Qa2 Qf8 Rg1 Qf5 Kg2 f1Q+ Kh2 f3 Qf4 f2 R1g2 Qe2 Nf3+ Kf7 Qhg4 f1Q Kh3 Qef2 Kh4 Kf6 Qh3 Kf7 Ng5+ Kg7 Kh5 Qf8 Kg4 Kg6 Nf3 Qd3 Nh2 Qdc2 Nf3 Qcf5+ Kh4+ Kf6 Rh2 Re4 Ne5 Ne6 Qc5 Rbe3 Ba8 Rb3 Qc6 Re1 Bd5 Nd8 Nf3 Re5 Be4 Kf7 Rg2 Rf6 Bd5+ Ree6 Qfd2 Qb1 Qe3 Rh6+ Kg4 Kg6 Qf4 Qbf5+
b3RrR1/nq2Qp2/b7/B5N1/p1B2R2/N4Qr1/rp1bQKR1/1q1Bb2k w - - 0 1 illegal: No possible last move
5R1B/1Bpn2Q1/Q3NKN1/bq1r4/6Q1/3B2rN/pk1bpQbr/rq4R1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 b5 a4 g5 hxg5 f5 g6 f4 g5 Nc6 c3 Nd4 c4 bxc4 f3 Nb5 axb5 Bg4 Be2 Bxf3 Bd3 Bg4 Bf1 Bc8 Kf2 Kd7 b4 Kd6 d4 Kd5 g7 a5 g6 e5 b6 h5 b5 f3 Ke3 c3 b7 a4 b8Q c2 b6 f2 b7 h4 Qa7 h3 b8Q h2 Qd3 a3 Nh3 a2 Na3 Bb7 Nc4 Rh5 Qc8 Bb4 Rg1 h1R Qg4 Qd7 Bb2 c1R Qc2 Rb1 Bd3 f1Q Qf2 Ba5 Qa6 Rh2 Bc3 Nf6 g8Q+ Qf7 g7 Nd7 Qf8 Qf5 Qe7 Rf8 g8B+ Rf7 Bh7 Rg7 Qef6 Rgg5 Qg7 Rc1 Rb1 Qd1 Rb6 Ra1 Rf6 Qb1 Rf8 Qb5 Qfg2 Qf1 Qf2 Qfb1 Bf5 Nc5 Bc8 Nd7 Bb2 Bc6 Bb7 Bd2+ Ke2 e3 Kf3 e4+ Kf4 Ba5 Ne5 e2 Ng6 e1B Bc3 e3 Bb2 e2 Bc3 Kd6 d5 Bd2+ Ke4 Rf5 Kd4 Rf3 Ke4 Re3+ Kf4 Kc5 d6 Rd5 Bf6 Nb8 d7 Kb4 d8N Ka3 Ne6 Nd7 Be5 Rg3+ Kf5 Rd6 Qe7 Bd5 Bh8 Kb3 Qg7 Bg2+ Ne5 Rd5 Kg6 Nb8 Kf6 Kb2 Ng6 Nd7+
k2rNbbB/1p1K1p2/n1N4N/1b1p4/q2r3R/1NBR3R/2r2b1r/2QBQ3 w - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 f4 axb4 g4 e5 a5 exf4 a6 h5 gxh5 Qc7 a7 Qb6 axb8Q Qd8 Kf2 g5 Kf3 d5 e4 Kd7 c4 Kc6 h4 b3 c5 b2 h6 d3 h7 d2 e5 Qd6 e6 Ra2 e7 Qf6 e8N Qe7 h5 Bg7 h6 Bh3 Qe1 d1R Nd2 b1B Nb3 Qd7 Bb2 Bf8 Be2 Bf1 Rh4 Rd4 Bd1 Nf6 Bc3 Bb5 Nh3 Rc2 Ra3 Ne4 Nf2 Rg8 h8B g4+ Kg2 g3 Kf3 g2 h7 g1B Ng4 Rh2 Nh6 Bf2 Qd8 B1d3 Qg5 Bc2 Ng7 Kc7 c6 Kb8 Ne8 Nc5 c7+ Kc8 Qgg1 Na6 Qh1 Bg6 Rh3 Qc6 Kg4 f3+ Kg5 Qc4 Kf6 Qa4 Qhg1 Bb1 Qg5 Be4 Qc1 Bf5 Bg7 Be4 h8R Bh7 Rh4 Be3 Ke5 f2 Bf6 f1R Rh3 Kd7 c8N Rff2 Na7 Rc2 Nc6 Kc8 Bg7 Bf2 Bf6 Bg7 Kd6 Rf8 Nb4 Kb8 Nc6+ Ka8 Kd7 Bg8 Be5 Bf6 Rh7 Be7 Bh8 Rh4 Rg7 Rf4 Rg4 Rd4 Rgh4 Bc5 Nf6 Rc8 Ne8 Bf8 Ra2 Re2 Rd2 Rb8 Rdd3 Rc2 Rg4 Rc8 Rgh4 Rd8+
3bq1q1/1Rn3N1/1B5R/1QB1rN2/1pK3pr/1Q2qRp1/5R2/rBN1qr1k w - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 cxd4 g5 d3 g6 hxg6 Bb2 g5 Bc1 g4 f3 e5 Ba3 d5 Bb2 d4 Bc1 Be6 f4 Bd5 exd5 e4 Qe2 Nd7 Qd1 Ne5 fxe5 Qc7 Bf4 Qb8 Bc1 Qd8 Kd2 Kd7 a4 g5 h4 b5 c4 f5 d6 Ke6 h5 b3 c5 Kd5 c6 b4 e6 b2 h6 f4 a5 f3 e7 g3 e8N f2 d7 g4 c7 Rh7 c8Q Bc5 a6 Qc7 d8B Qf7 a7 Be7 Nf3 Nf6 Ra2 Qg8 Ng7 Ne8 Qb8 Nc7 Nh4 Rh8 Bg2 f1R h7 Rf5 Qf3 Re5 Nhf5 Bh4 Be7 Bf6 Bd6 Bd8 Rh6 Qe8 Bc5 Qg8 Na3 b1Q Nc2 Qb3 Na1 Qa4 Nb3 Qae8 Ke1 d2+ Ke2 d1R Be3 Rb1 Qb5 Rf1 Nc1 d3+ Kd2 Na6 Bg1 Nc7 Ke3 d2 Ke2 Rb8 a8R d1Q+ Ke3 Rc8 R8a3 Ra8 Rf2 Qb3+ Kd2 Ra7 Rb6 Ra8 Rb7 Qe3+ Kc2 Ra6 Rc3 Ra7 Kb3 Ra1 Qd1+ Qd4 Rcf3 e3 Qc2 e2 Qcc4+ Ke4 Qf7 Qe3+ Kc4 e1Q Qe6 Qgf7 Bb6 Rg8 h8R Qg6 Rh6 Rh8 Qd6 Qgg5 Qd1 Qgg6 Bh1 Qh7 Qb3 Qhg8+ Re6 Rh4 Bg2 Qh7 Rh6 Qhg8+ Ne6 Bg5 Rc2 Nd5 Neg7 Q3d2 Re3+ Kf4 Bf3 Bd8 Be4 Qdf2 Rec3 Qfd2 Bd3 Kf3 Bgc5 Kg2 Rb2 Kh1 Bb1 Qdf2 Rf3 Qfe3 Rbf2 Nc7+
b2k3r/b2r2p1/1r2K2B/2NRb2b/2B1RpQ1/2Q1B2b/BrR3p1/2q1N2Q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 d4 c5 g5 cxd4 g6 d3 Be3 hxg6 Bd2 g5 Bc1 g4 Nd2 e5 Nb1 d4 f3 Ne7 f4 Nd5 exd5 e4 Nh3 Nc6 Ng1 Ne5 fxe5 Rh5 Ba3 Rh7 Bc1 Rh8 Kf2 f5 Kg3 b5 Kf4 d2 h4 b3 a4 e3 c4 b4 e6 d3 Ke5 e2 e7 e1B c5 g3 d6 b2 c6 g2 c7 f4 a5 b3 a6 Bd7 c8Q Rg8 a7 Bb5 h5 Ba6 h6 Bh4 h7 Bb5 h8Q Rb8 a8B Bc4 Nc3 b1B Ra5 b2 Na4 Bb3 Qc3 Be6 Bd5 Bf2 Ba2 Ba7 Nf3 Rb6 Rg1 Bd7 Qh1 Rh8 Kd5 Bh3 d7+ Kf7 e8R Bd6 Qe2 d1B Be3 d2 Re5 Qh4 d8B Qe1 Bg5 Bc7 Bh6 Be4+ Kc4 Ba8 Re4 b1R Rb5 Rb7 Kd5 Be5 Rb2 Ke7 Rc2 Kd8 Nc5 Bd4 Kd6 R1b2 Kd5 Bg4 Kd6 Be5+ Kd5 Bh5 Ke6 R7b3 Qf2 Be2 Qg3 Qc1 Qgh3 Bd1 Bc4 Be2 Qf5 d1R Re1 Rd2 Rd1 Rd7 Ne1 Beg4 Rd5 Bh3 Qg4 Rb6+
3Q1r1B/4qN2/rR6/1p1p1Qn1/1kB1b3/1pNr1n1p/n1R2b2/BBK1R1Q1 w - - 0 1 illegal: No possible last move
2K1b3/6p1/1rn2QQ1/4pr2/n1k1NB2/2b1BB1N/qpRpRrn1/N4BR1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Kd2 Kf7 Kd3 d5 Ra2 g3 h4 b3 f4 g2 c4 e6 c5 Ba6 h5 Qb6 h6 Qd6 f6 Qe5 f5 Be7 c6 Bf8 h7 Bb4 c7 Bc3 c8B Qg3+ Be3 Ba1 Nd2 Ne7 Bb7 Ng6 Qc2 Re8 h8R Rf8 R8h2 Qf2 Nh3 g1R Qc6 Rg4 Rg1 Nh4 Qd6 Re4 Bc6 Bc8 b6 Ra5 b7 Bd7 Qg3 Be8 Qg6+ Kg8 Rb2 Rf4 Ra2 Rb5 Rhg2 Rb6 f7+ Kh8 f6 Bb2 Bd7 Nc6 b8B Rf3 Bh2 e5 Bg4 Ba1 Ne4 Rf4 Ra3 Qa2 Re2 Rf2 Ra4 Ng2 Rc4 Bb2 Bf3 Ba1 Rc3 Bb2 Rcc2 Ba1 Kd2 d3 Bg3 d4 Bgf4 Rg8 f8N Bc3+ Kd1 b2 Ne6 Rf8 N6c5 Kg8 Nb3 Rf7 Na1 Rf8 Qg5 Kf7 Qg6+ Ke6 f7+ Kd5 Rc1 d2 Kc2 d1N Kd3 Ba5 Rcc2 Rh8 f8Q Rh5 Qff5 Nc3 Qff6 Na4 Nc3+ Kc5 Ke4 Rh4 Kf5 Kc4 Ke6 d3 Ne4+ Bc3 Kd6 d2 Kc7 Rh5 Kc8 Rf5
1RQr4/6B1/BpNp4/pR4qp/2Q2q1N/kb1K1N1n/rNn5/2RB2bq w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 b6 a6 Qc7 Ra2 Qc6 Ra1 Qb7 axb7 Nc6 b4 Nxb4 Kd2 Nd3 Ke2 Nb2 Kd2 Nh6 Ke1 Ng8 Ke2 e5 b8N Ke7 f4 Kd6 c4 Kc5 g4 Kb4 g5 a5 g6 h5 g7 h3 c5 e4 f6 e3 f5 h2 f7 d6 c6 Be6 f6 Nh6 g8B Ng4 c7 Bg7 c8Q Nd3 f8N Bb3 f7 Ngf2 Nf3 Ne1 Nc3 Nc2 Bb2 Nh3 Kd3 e2 Na4 e1Q Qe2 Qc1 Ng6 Qf4 f8R Be5 Bf7 Rg8 Ngh4 Rg2 Rb1 Bh8 Bc3+ Ka3 Nb2 Qg5 Rg1 h1Q Nc6 Qh2 Qee6 Qhf4 Qc4 Bf6 Be2 Rb8 Bd1 Re2 Qd7 Rd8 Qc8 Qg8 Na4 Be7 Rg5 Qe5 Qa8 Rh2 Qca6 Rc8 Bc4 Na1 Be2 Bf6 Kd2 d3 Bd4 Qf4+ Kc3 d2 Kd3 Qf7 Rc1 Qg8 Qb5 Rf2 Qd5 Rb8 Ba6 Qg7 Re5 Qgg5 Qc4 Bg7 Rb5 d1Q+ Kc3 Qe1+ Kd3 Qh1 Bd1 Ra2 Nb2 Nc2 Bc3 Bd4 Rg8 Bg1 Bg7 Rf8 Qb7 Rf7 Rb8 Rf8 Qc8 Rd8
Q2q2RK/1Bq2N2/1Q3R1p/2n1Q1RN/1B6/n1p1pnp1/3br1N1/bq1N2k1 w - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 f4 dxc4 b4 a5 f5 axb4 h3 b5 f6 g5 Ba3 Bf5 gxf5 g4 Bc1 g3 Qf3 Ra3 Qd1 Rf3 Nc3 Rf4 Nb1 Rg4 hxg4 Qd5 Qb3 Qd6 Qd1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 c3 a4 c2 g5 e6 g6 e3 g7 b3 f7 b2 f6 h6 a5 e2 a6 e1B a7 b4 a8Q c6 Nf3 b3 Rh5 Qe7 Nc3 b1Q Qe2 b2 Nd1 Nd7 Ra6 Qa1 Rg5 Rh7 Nh4 Qb1 Bg2 Ne5 d3 Rh8 Bd2 c1Q Bb4+ Qc5+ Ke4 Bd2 Qb8+ Qc7 Qb6 Nf3 Qe3 e5 Kf5 Kd5 Kg6 Bd6 f8R Qd4 f7 Nf6 g8N c5 Kg7 c4 Rd8 Nd7 f8Q c3 Bh1 Bc5 Ng2 Be7 Rb8 Nc5 Qe8 Qh4 d4 Kc4 d5 e4 Qe1 Kd3 d6 e3 Nf6 Rf8 d7 Bd6 Qg1 Ke2 Qe5 Qd4 Qh2 Kf1 Nh5 Be7 Qh3 Kg1 d8N Rf6 Nf7 Qdd8 Qc8 Rf4 Nf6 Rh4 Nh5 Rh2 Nh4 Re2 Ng2 Qa2 Qcb7 b1N Qa8 Na3 Kh7 Bf8 Kh8 Qb1 Rc8 Qdd7 Rd8 Bd6 Re8 Qdd8 Reg8 Nc2 Qba7 Ne6 Ngf4 Nfe1 Ba5 Ba3 Bb4 Nc5 Bb7 Bb2 Rf6 Na3 Qb6 Ba1 Ng2 Nf3
5r1N/3Qbp2/2Brpn1k/R1Q1rQ2/RnNKn3/2Bpp1q1/3q4/3BB1N1 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 g4 Bb7 e3 Bg2 f3 Bh3 g5 Bg4 fxg4 dxe3 Ke2 a5 Kd3 h5 c4 d5 b4 e6 g6 d4 b6 h3 c5 h2 b7 h4 g5 a4 b5 h3 g7 a3 c6 a2 c7 Be7 c8B Qd6 g6 Nc6 b8Q Qb4 b6 Nd8 b7 Qe1 Qa7 Rh7 b8B Bf6 Bd7+ Ke7 Bc6+ Nb7 Na3 Qg3 Bb2 Rh5 Be2 Re5 Qc5+ Nd6 Nc4 Bh4 Qc2 Kf6 Bd1 Kg5 Bc3 Nf6 g8Q Nde4 g7 Kh6 Qd8 Bg5 Qde7 Bh4 Bc7 Rf8 Qd7 Bg5 B7a5 Bh4 Rb1 a1N Rb5 Bg5 Qf2 Nc2 Qf5 Bh4 Rb4 Bg5 Ra4 Bh4 Nb2 Nb4+ Kc4 d3 Kd4 Rd8 Nc4 Rf8 Nf3 Bg5 Rf1 h1Q Ng1 h2 Rf2 Bh4 Rfa2 Qhg2 Ra1 h1R g8N+ Kg7 Ne7 Kh6 Be1 Qd2 Ng6 Bg5 Nh8 Rh4 Bb6 Rg4 Ra5 Bh4 R1a4 Rgg8 Ra6 Rd8 Ba5 Rgf8 Ra8 Ne8 Ra7 Be7 Ra6 N8f6 Ra8 Na2 Bc3 Nb4 R8a5 Nbd5 Qe8 Rd6 Qd7 Nb4+
2N2KQ1/pn2r3/rBR5/pk6/1Np2nB1/p1Q2q1R/1r3BQq/Q1b2n1R w - - 0 1 illegal: Other
1Kn1kNB1/p2r1nnR/2nn4/r6Q/R2Q3R/1p2b1Bp/1qQp4/3NB2Q w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 a4 b5 Qd3 b4 Qd1 Ba6 b3 Bb5 axb5 Qa5 Bc4 Qa3 Bd3 Qxb3 Bf1 Qb2 Ke2 h5 Kd3 e5 Kc4 d6 Kd5 d3 f4 e4 c4 b3 g4 e3 g5 e2 f6 e1N f7+ Kd8 b6 d2 f5 h3 b7 h4 f6 h2 c5 Nc2 g6 Bg7 f8Q+ Kd7 c6+ Kc7 f7 Nh6 Qe8 Qf6 f8Q Qf2 Qf6 Nd7 Qd4 Rd8 Bc4 Nf7 Ra4 Bh6 g7 Be3 Nf3 Rh5+ Ng5 Nb6+ Ke6 d5 g8R Nb4 b8B+ Kc8 c7 Nc6 Nh7 Rf5 Qe1 d1N Rh8 Nc3 Bd2 Ne4 Nf8 Ned6 Rh7 Rh5 Ba5 Qb2 Nc3 Rf5 Nd1 h3 Rf1 h1N Rf4 Rg5 Rfh4 Ng3 Qh1 Ngf5 Be1 Rh5 Qe7 Rd7 Qg5 Qa3 Qg6 Rg5 Qh5 Qb2 Qh8 d4 Qf6 d3 Qd4 Na8 Kd5 d2 Kc5 N7h6 Bg8 Nhf7 Kd5 Nb6+ Kc5 Nb7+ Kb5 Nbd6+ Ka6 Re7 Ng6 Kd7 Nf8+ Ke8 c8Q+ Nd8 Qc1 Ng7 Qc2 Nc6 Bc7 Nbc8 Bb8 Nb5 Bc7 Rd7 Kb7 Rgd5 Ka8 Rg5 Be5 Nbd6 B5g3 Nb4 Kb8 Rc5 Ra3 Ra5 Ra4 Nc6+
2bK2nQ/2r2r2/2RRrr2/Np3p2/4N1pq/bR2Bk2/1Qp2BN1/4B1qR w - - 0 1 legal: proof: f4 e5 g4 a5 c4 f5 b4 axb4 g5 d5 cxd5 Nd7 Bg2 exf4 Bf3 h5 Bg4 Ndf6 gxf6 hxg4 Kf2 Kf7 h4 Kg6 a4 Kh5 e4 g5 d4 b5 a5 c5 e5 c4 a6 c3 d6 c2 e6 b3 d7 b2 a7 f3 Ke3 g3 d5 Kg4 Kd4 g2 Ke5 Rh7 f7 Rb8 a8R Qe7 d8B Rh5 d6 Bd7 Nh3 g1Q Qd4+ Kg3 Nc3 b1R Nf4 g4 R8a3 f2 Be3 f1R Ba5 Qh2 Rb3 Rh7 h5 Qg5 e7 Qd2 e8R Qf2 h6 Rb7 Re6 Rfe1 Ng2 Qh4 Ne4+ Kf3 Qb2 Rec1 Be1 Qe2 Ra6 Qc4 Rc6 Be7 f8B Be8 d7 Rd1 d8N Rc7 Nb7 Ba3 Red6 Qd4+ Ke6 Rhf7 h7 Ra1 B1f2 Re1 h8Q Qa7 Na5 Bd7+ Kd5 Ra2 Bg7 Bc8 Bc3 Re2 Bce1 Rf6 Rc4 Rcf7 Kc6 Qd4 Rcc3 Qd1 Kb6 Qc1 Rcc6 Ra1 B1d2 Qg1 Bde1 Rd1 Rd7 Rd5 Kc7 Rc5 Kd8 Rc4 Re6 Rc7 Rc6 Rd2 Rdd6 Rd5 Qh7 Re5 Qh8 Ree6
2B5/Q2R1pK1/Q1Q4R/NpBN4/2B2b2/bRp2kbq/1r1p2r1/b1Rn1q2 w - - 0 1 illegal: No proof kernel
1k1r4/3nb2R/1pp2QBK/3prpb1/N1r1R1b1/7N/1Q2N1QB/b2nB1B1 w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 gxh5 c6 d4 Ra6 d5 Qa5 c3 bxc3 d6 Qc7 dxc7 Ra8 Kf2 d5 Kf3 Kd7 Kg4 g5 a4 f6 h4 c2 e4 f3 a5 f2 a6 Ne7 e5 Rg8 e6+ Kd6 a7 Nf5 e7 Bd7 c8N+ Kc7 e8Q Nd6+ Qe6 Bg7 h6 Be8 h5 Nb5 h7 Bh8 h6 Na6 Qd4 Nc3 Bd2 c1B Nh3 Bd7 Kh5 g4 Nb6 g3 Na4 b6 Bd3 f1R Bg6 g2 Be1 Rae8 a8Q Bg7 h8B g1B h7 Nd1 Qb2 Bc5 Nbc3 Rf4 Ne2 Nb8 Qg4 Bcf8 Qg2 Rc4 Ra3 Rd8 Re3 Be7 Re4 Bg5 Qa5 Be6 Qac3 Nd7 Rh2 Rge8 Qd4 f5 Qf6 Bh4 Rh1 Kb8 Rh2 Bgf8 Bg7 Bg8 h8B Bf7 Bh6 Bg7 Be3 Rc8 Bg1 Rcd8 Qe6 Bd4 Qf6 Be5 Kh6 Bc3 Bh7 Bh5 Bg6 Bg4 Bg7 Ba3 Rh1 Re5 Bh2 Bd4 Bf8 Bc3 Bc5 Bab4 Bcg1 Be7 Qa2 Ba1 Qb1 Rc2 Qb2 Rc4 Bf4 Ne3 Ng5 Rc1 Kg7 Bf2 Rh7 Nd1 Bfh2 Rc4 Nh3 Bh4 Kh6 Bg5+
n3q3/p2n1p2/1RpR3r/5NBk/3rr1p1/QbQ1K3/2B2N1p/B1Q1NN1b w - - 0 1 illegal: No possible last move, all moves rejected
1rQ3R1/b1p1NkBr/1n1R1q1p/3pp2p/2Q4n/bN3Q1q/3RK3/3B1R1B w - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 b5 cxb5 d6 h4 g6 b4 Bb7 a5 Na6 d3 exd3 b6 Rb8 h5 Rc8 b5 Nb8 a6 gxh5 axb7 Nd7 Qe2 Ra8 Qd1 Nb8 g4 e5 f4 a5 f5 a4 g5 a3 g6 a2 f6 Nc6 b8R Ra4 f7+ Ke7 g7 Kf6 b7 Kg6 b6 Ra7 Bh6 Ra4 Be2 Qe8 Nf3 Nd8 Nc3 Be7 f8Q Qc6 Nd4 Ra8 Qa4 Qd7 Rf1 Nc6 Rd8 Nb4 b8Q Qh3 b7 Nd5 Qf3 Nb6 Nb3 Bf8 Nd5 Ne7 Kd1 Nf5 Qc4 Nh4 Rd7 Be7 Qd8 Bf8 b8R Be7 Rc8 Rb8 Kd2 Bf8 Rad1 Be7 g8B Bf8 Bg7 h6 Qff4 Rh7 Be6 Be7 Bf5+ Kf7 Be4+ Ke6 Ke1 d2+ Kf2 Bf8 Bh1 Be7 Qg3 Kf7 Qgg4 a1B Qh8 Na4 Re8 Bb2 Rdd8 Bg5 Ne7+ d5 Rd6 Ba3 Rc8 Bf4 Qd8 Bg5 Qdd7 Bf4 Rg8 Bg5 Qc8 Bf4 Ra1 d1Q Ra2 Qc1 Bd1 Be3+ Ke2+ Bf2 Qb7 Qf4 Qbc8 Ba7 Qf3 Nb6 Rd2 Qf6
5q2/Q2b1RpB/K7/1Np3B1/k1B2R2/2B2pqb/1QNp1pbN/1n2bnR1 w - - 0 1 legal: proof: f4 e5 c4 exf4 b4 a5 g4 axb4 g5 b3 g6 hxg6 Na3 g5 Nb1 g4 Ba3 b5 Bc1 b4 d4 c5 d5 Rh6 Nf3 Rg6 Ng1 Rc6 dxc6 Ra4 Nd2 Ra5 Nb1 Rb5 cxb5 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 d5 Kd3 f5 a4 b2 e4 d4 Kc4 g3 h4 f3 e5 d3 e6 g2 c7 b3 e7 Kd7 e8N f2 b6 Kc6 h5 f4 b7 Qd7 h6 Ne7 a5 Qd8 h7 Na6 h8R Nb4 b8B Qd7 a6 Na2 a7 Nf5 Nf3 g1Q Qe2 Qd8 Nh2 Bd6 Rh4 Nc3 Na3 b1B Qb2 Bd7 c8B Bc7 Nc2 Ng3 Nd6 Qf8 Nb5 Ba5 a8Q+ Kb6 Be2 Nf1 Be5 Qg3 Rg1 Ba2 Bd4 Nb1 Bc3 Bb4 Ba6 Ka5 Qa7 Ka4 Bf3 Bh3 Be4 f3 B1d2 Bg2 Bg5 Ba5 Bh7 Bb4 Bd4 Be1 Rf4 d2 Bc3 Qg8+ Rf7 Qf8 Kd5 Bh3 Kc6 Bg2 Qc1 b2 Kb6 Na3 Kb7 Be6 Ra2 b1B Rb2 Bd7 Rb4+ Ka5 Qb2 Bdh3 Bcf6 Ba2 Rf4 Bc4 Bc3+ Ka4 Nbd4 Bd5+ Kb6 Bb7 Bc4+ Ba6 Nb5 Nb1 Qc7 Bac8 Ka7 Bcd7 Ka6 Qe7 Qa7 Qf8
2Q3r1/q3n1Qb/RR2N2b/nRq1B2r/1q5n/1krN3n/b3NN2/1BK3nQ w - - 0 1 illegal: No possible last move
1QNBN1n1/rrb1q1qb/3Q1n1R/n2B1k2/nB2qrR1/3QK3/NN2b2n/8 w - - 0 1 illegal: No possible last move, all moves rejected
Rr4r1/2q1B2Q/Bk2n2b/7r/5q1q/bKrR1Rn1/NBrQb3/RN3nN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 e4 d5 b4 Kd7 c4 Kc7 Kc2 h5 g4 f5 g5 a4 c5 a3 g6 f3 g7 d3+ Kc3 d4+ Kb3 h3 c6 f4 e5 a2 e6 h4 e7 d2 e8R d3 Re5 h2 Rh5 f2 Rh7 f3 Nh3 Na6 Ba3 Kb6 c7 Nh6 g8N Nf5 Ng5 h3 Re7 Bh6 Rf7 Ng3 Be2 f1N Ne7 f2 Nc6 Bg4 c8Q Nc7 Qf5 Ne6 Qh7 Rg8 Rf3 Qc7 Bb2 Rab8 Qc2 d1R Qd2 Rc1 Rg1 Kb7 b6 h1R b5 h2 Nh3 Rc2 Nb4 Bh5 Rg2 Bg4 Ng1 Bh5 Qc3 d2 Bc4 d1Q Qd2 Qe1 Rd3 Be2 Rf3 Ka8 b7+ Ka7 Bd3 Kb6 Bc4 Rbf8 b8B Qc1 Bd3 Qf4 Bd6 Rb8 Be7 Qc7 Qd1 Qe3 Qd2 Qef4 Be4 Qh4 Bb7 Qhf4 Ba6 Qh4 Nh3 Rg1 Rd3 h1R Rh2 Rg2 Ng1 Rc4 Rh3 Rc3+ Ka4 Nh2 Rf3 f1Q Rd3 Qff4 Rf3 Rc5 Kb3 Nhf1 Rd3 Nh5 Rhe3 Nhg3 Rf3 Rh5 Ba3 Rh3 Bb2 Ka5 b6 Rgh2 b7 Kb6 Nc3 Rg2 Rb1 a1B Nba2 Rgh2 Rc1 Rg2 Nb1 Rgh2 Be5 Bb2 Re1 Ba3 Bb2 Rbe8 b8R+ Ka7 Rbd8 Kb6 Ra8 Rb8 Rc1 Qfd6 Rf7 Qe4 Qe1 Bg4 Re3 Rc2 Qd2 Be2 Nbc3 Nf5 Ra1 Qh4 Nb1 Rf3 Rc3 N5g3 Rf8 Re3 Rf2 Qdf4 Rf3 Re4 Rce3 Rec4 Rd3 R4c3+
Rr1q4/q3N1nR/bR6/N1KnkB1N/3N1n2/2B3Q1/3r1nbQ/1Bbnr2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Kf6 e4 a5 b4 h5 c4 d5 c5 h3 b6 f3 b5 d3 Ke3 f2 Kd4 d2 b7 h2 c6 h4 b6 h3 c7 a4 Bg2 f1N Nc3 a3 Qe2 d1R+ Qd2 Rh7 Nge2 a2 Nb5 Ng3 Ng1 Ne7 Ne2 Bh6 Na3 Ng6 Nc4 Na6 b8Q Nh5 b7 Nb4 Kc5 d4 Bb2 Re1 g5+ Ke6 e5 f5 Bf3 f4 Bc3 d3 Be4 f3 Rb1 a1Q Nd4+ Kf7 Rb3 Nd5 Rb6 Qa7 Na5 f2 e6+ Kg7 e7 f1B e8N+ Kf7 Rg1 h1N Nf6 h2 Rg4 Ke7 Rh4 Bch3 c8N+ Kf7 Qa2 Ng7 Qg3 Be2 b8R d2 Bb1 d1N Ne7 Ba6 Ndc6 Ke6 Qb2 Ngf4 Nd4+ Ke5 Qbg2 Nhf2 Bf5 h1Q Bb1 Ng4 g6 Nh5 g7 Bg5 g8B Ng7 Qd3 Ng6 Be6 Bc1 Bf5 Ngf4 Rc8 Rh6 Qg1 Rg6 Rh7 Rh6 Qdg3 Bhf1 Bd2 Rh2 Bc3 Rd2 Q1h2 Ngf2 Nh5 Bg2 Ba2 Rb8 Bab1 Rb7 Ra8 Rb8
1NQBb1b1/Rn6/2R1nQ2/1R3K2/rBB3n1/1Qq3n1/1b1Nn3/nn2krQr w - - 0 1 illegal: No possible last move
2NbBK2/B1bQ1Nq1/R1n3Q1/1N2Bb2/b1Nr1Rq1/Qb2b2k/2n1rb2/5r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 h4 Kf5 c4 a5 c5 g5 e3 d5 b6 a4 c6 g3+ Kf3 a3 b7 a2 h5 d3 c7 g4+ Kg2 d4 h6 d2 b5 d3 h7 Qe7 b6 Ra4 Qb3 d1Q Qc2 Na6 b8B Nb4 Qd2 Nc2 b7 Rd4 Ne2 f3+ Kg1 g2 Kh2 g1B+ Kg3 f2 Nec3 f6 Kh4 Qg7 Kh5 g3+ Be2 f1B Rh4 g2 Na3 Bf2 Bb2 g1B Ba7 Ne7 b8Q Nc6 Ncb5 Be7 Nc4 Bd8 Qa8 Re8 h8N Bh3 Bc3 Be6 c8N Bh2 Bf3 Bhc7 Nf7 Qe2 Qd1 d2 Qg1 d1B Bb2 Qg4+ Kh6 Qf1 Bd5 Qfg2 e4+ Kf4 e5 Kg3 Bf3 f5 Be2 Bd5 e6 f4 e7 f3 Bd3 Be6 Bg6 Be3+ Kg7 f2 Bc3 f1R Bb2 Qh5 Bc3 Bhf5 Rf4 Qg4 Bb2 Kh3 Bc3 Rf8 e8Q Re1 Qd7 Re2 Nb2 Bb3 Nc4 Rdd2 Be5 Rd4 Bb6 Bf2 Qa3 Q2g3 Ba7 Qg2 Rc1 a1B Rb1 Bc3 Ra1 Bd2 Ra2 Bde3 Ra1 Re8 Ra2 Re6 Kf8 Rf6 Qb4 Na1 Ra6 Ba4 Bh5 Bdb3 Qa3 Nc2 Qb1 Qh4 Qg1 Qg6 Qg5 Qg4 Qh6 Qh7 Qg6 Qg7+ Ke8 Rfd6 Nh8 Qg2 Qh7 Rd1 Bf7+ Qh6 Qg6 Qh7 Kf8 R6d4 Be8 Rf1 Nf7 Qg4 Qg5 Qh6+ Qg7 Qf6 Qg6 Qg7+
2nbn2k/3b4/nnqnnrBB/1b4QQ/N3R1K1/1nB5/QN2N1R1/1rq3N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 c4 d5 b4 f5 g4 Kf7 e4 Kg7 e5 h3 b6 h2 b7 d3 e6 a4 g5 h4 e7 d2 e8Q a3 c5 d4 g6 d3 b5 h3 c6 a2 b6 Ne7 c7 Qd6 Qe2 d1Q Nc3 d2 Qd7 Na6 b8Q Rh6 b7 Kh8 Bg2 Qc6+ Qd5 Bd7 Qa7 Rb8 Bb2 Qc1 c8N d1N Nd6 Nf2 Ba3 Ne4 Qdd4+ Nf6+ Qee4 Nc8 Qd1 Be7 Nge2 Ne8 Rg1 h1N Nc4 h2 Bb4 Nf2 Nb2 h1N Nca4 Nd3 Qd5 Ndc5 Bc3+ Bf6 Bf1 Nf2 Rg2 Nfe4 Ng1 Ne6 Bd3 N4d6 Rb1 a1N g7+ Kg8 Qf2 Nb3 Bc2 Kh7 g8N Bd8 Nf6+ Kh8 Nh5+ Rf6 Qc5 Ne7 Ng3 Nec8 Kf2 f3 N3e2 f4 Bg6 Na1 Qa2 Nb3 Kf1 f2 Qg5 Na5 Ra1 Nac4 Rb1 N4b6 Ra1 Ra8 b8B Ra7 Rb1 Rb7 Ba7 Nbc4 Be3 N4b6 Nd4 Rb8 Ke2 f1N Kf2 f3 Nde2 Nd2 Kg3 f2 Kg4 Nb3 Qdd5 Qc2 Re1 f1B Qa5 Qc1 Qh5+ Kg7 Bh6+ Kh8 Qag5 Rb7 Nd4 Bd3 Re4 Bb5 Nde2 Ra7 Qa1 Nb4 Nc5 Ra4 Qb1 Ra1 Nca4 Na6 Qa2 Rb1
1R1rB1nB/1Q1RRb1b/RB1n2b1/1r5Q/nr1Nqk1b/NK1n3Q/7b/4n3 w - - 0 1 illegal: No possible last move, all moves rejected
2N5/n3QBK1/1R2Rn1b/1N1r2kN/1nr1B1B1/1Q3Q2/n2b3r/bbBn1bq1 w - - 0 1 illegal: No possible last move
q2R3R/R2QNBB1/1K1NnrQr/1nn5/2b1br2/1N2Br1R/rn5b/3n3k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 g4+ Ke4 b4 h5 e3 a5 g5 d5+ Kb3 f5 Ka4 d3 c4 d4 b6 d2 Kb5 a4 c5 h3 b7 d3 c6 h2 c7 f3 g6 a3 g7 h4 Bg2 h3 Qf1 d1N Bd2 a2 Qe1 f4 Qg3 Nf6 g8Q Nc6 b8N Ne8 Qf7 Rh6 Qe7+ Be6 c8R Na7+ Ka6 Nb2 b5 Rf6 b6 Ng7 Qd7 Bd6 Na3 Bc4+ Nb5 Ne6 b7 Qg8 Bc3 d2 Rd8 d1N Nc6 Bb8 Bf1 f2 Kb6 f3 Ne2 Qf8 Bg2 f1R Nc1 Bd6 b8B Qh8 Na3 Nb5 Ne7 Rf4 Nb3 Rf2 Rg1 h1B Ba7 h2 Bg7 Rf1 Bh3 f2 Qg6+ Kf3 e4 Bg2 e5 h1R Bf5 Rh6 Rh1 Qf8 Bg4+ Kg3 Rh5 Be4 Rh3+ Kg2 Bh5+ Rg4 Qf6 Rf4 Bf7 Rf3 Rb1 a1N Qg6+ Ng5 e6 Bh2 Rc1 Kh1 Rc2 Nd3 Ra2 N3b2 Nc8 Qh8 e7 Ne6 e8R Qf8 Ne7 Qg8 Nd2 Nb3 Rf8 Nbc5 Nb3 Rg1 Rfe8 f1R Ra1 Rg4 Rf8 Qh7 Rh8 Qg8 Ra2 Rgf4 Ra1 Be2 Nc4 Qf8 Nd6 Bc4 Bb8 Qe8 Ra7 Qg8 Ndc8 Rf6 Bf4 Qe8 Nd6 Qf8 Rc7 Ra2 Be3 R3f4 Rb7 R1f3 Ra7 Qe8 Qb7 Qd7 Qc6 Qc8 Qd7 Qa8
2Q3N1/nN1n1rk1/2b5/QNb1n2b/3r1Qnq/2Q1B2n/1qn2R2/1BK1R1Bq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 a5 c4 h5 c5 f3 e5 f4 e6+ Kg7 c6 d3 e7 f2 e8Q a4 g5 h3 b6 a3 g6 a2 c7 h2 b5 d4 b7 h4 b6 f3 Bg2 f1Q Ba3 f2 Bd6 h3 Qf3 Bd7 c8Q Rh4 Qcc6 Nf6 Qc2 Bc6 Qb2 Qe2+ Kc1 f1N Qd2 Ng4 Qa5 Ra7 Be7 Nd7 b8Q Nge5 b7 Ne3 Bg5 N3g4 Be3 Bc5 Na3 Qg5 Rb1 a1N Rb2 Nc2 Nc4 Qd8 Nd6 d2+ Kb1 d1N Kc1 Qb5 Ne2 d3 Re1 h1N Nc3 h2 Qf4 Qb3 Qbc7 Nhf2 b8B h1Q Nb7 Nh3 Nb5 Nc3 Be4 Qe7 Qec8 Qa3 N5d6 Nb5 Qc3 Qf6 Q7a5 Qa4 Bc7 Qd4 Bb6 d2+ Kb1 d1B Kc1 Nh6 Bg1 Bh5 Bd3 Nhg4 Be3 Nb4 Rf2 Qe7 Bb1 Nc2 Nd8 Rc7 N8b7 Na7 Nb5 Qb4 Qaa3 Qg5 Qa5 Qb2+ Kd1 Kh6 g7 Kh7 g8N Kg7 Qa1 Nf8 Qaa5 Rf7 Rff1 Nd7 Bg1 Bf8 Bbe3 Bc5 Rf2 Nh2+ Qf3 Rhf4 Kd2 Ng4 Kd1 Re4 Qf4 Qh4 Kd2 Qa2 Kd1 Rd4+ Kc1 Qb2+
n2QN2b/4N1q1/2Kbq3/6nQ/1N2kn1r/1QRNBqRB/3b3r/2bbBb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 d2 h5 g3 e3 f3 b6 a4 b7 f2 b5 g4 h6 a3 b6 a2 c5 g2 c6 g3 h7 Ra4 c7 Qe7 Nf3 g1B Ba6 f1Q Rh4 g2 Qe2 d1N Bd2 Qe1 Rb4 Nc3+ Kd4 d5 Qb5 Nd7 b8N Nh6 b7 Nb6 Qc5 Na8 Nc6 f6 b8Q Nf7 Qb7 Ng5 Rc4 Qg7 Nb4 Bd6 Ne5 Be6 c8Q Ne2+ Kd3 d4 Qd8 Bg8 Rc3 Bb3 Qbb6 Bc2+ Kc4 d3 Kb5 Bd1 Kc6 Nf4 Bc8+ Ke4 Bh3 f5 Qbb5 Qe2 Be1 d2 Ned3 Bf2 Qb7 g1B Qf7 Bh2 Qb3 Bfg3 Ne5 Qc4 Ned3 Qe6 Qb5 Bc2 Qc5 d1Q Qca5 Qf3 Qb5 Rf8 h8B Bd1 Qba5 Rf6 Qc5 Rh6 Qb5 Qf8 Bd4 Qg7 Bd2 Ng6 Bc5 f4 Ne1 Ke5+ e4 Qc4 Nd5 Be2 Na3 Nf7 Nac2 Rb4 Ng2 Be1 Bd7 Bhg3 Bc8 Rh2 Bh3 Bh4 Rb1 Bg5 Rb2 Bd1 Qba5 Bf2 Be1 Be3 Qb5 Qce2 Ba7 Rd4 Ncb4 Bc1 Rd2 Qg3 Bb6 f3 Ngf4 f2 Rdd3 f1B Re3 Qgg2 Rg3 Qe3 Qe2 Qgf2 Qh5 Qff3 Ne6 Rc4+ Nc5 Kd4 Ba7 Qee2 Bb6 Bgd2 Ba7 Ng5 e5 Bc7 e6 Bd6 e7 Qe6 e8N Ke5 Rd3 Rh4 Rc3 Nf4 Ncd3+ Ke4 Be3 a1B Ne7 Qgf7 Rc5 Bh8 Rc3 Qg7
q4knK/3qr3/1RnBn2N/q7/bBq2b1N/2QRNnBq/Q3B1Q1/r5n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Bd7 b7 Qa5 b6 Rh7 c7 Ba4 Bd2 Nc6 Be2 f1N b8B f2 Bb4 Nd2 b7 f1Q Qc2 Nf3 c8Q+ Kf7 e8N Bd6 Qb2 Bf4 Nd2 Ra6 Re1 a1N Nf6 Nb3 B8d6 Ra8 b8B Ra7 Kc2 d3+ Kc3 Nbd4 Qa2 Ne6 Nc4 d2 Ng4 d1Q Nce3 d4+ Kc4 Qa1 Rb1 d3 Rb2 d2 Nh6+ Kf6 Kd3 d1Q+ Ke4 Re7 Rd2 Qac1 Rd3 Qdd2 Nhg4+ Kf7 Bbc7 Qa1 Bb8 Qa8 Kf5 Qfc1 Qc7 Qc4 Nh6+ Ke8 Kg6 Qac3 Bbc5 Qca5 Bb4 Rh8 Nf7 Rh5 Nh6 Qd1 Kh7 Rb5 Ba3 Rb1 Kh8 Ra1 Bab4 Qd2 Qa7 Qd1 Qd4 Qd2 Qc3 Qd1 Rd5 Qdd4 Rb5 Qda7 Rd5 Qd7 Rd3 Nfe5 Nc2 Nf6 Bbc5 Bd2 Nf3 Bg5 Rc1 h1Q Rb1 h2 Bba7 Bf4 Nh4 Qf1 Ba3 h1N Bf2 Nf3 Ne3 Qg2 Be1 Nf2 Rb6 Nh3 Bab4 Nhg1 Bf2 Qh3 g8Q+ Nf8 Qg3 Ng8 Qg2 Ne6 Bg3 Kf8
4RQR1/BN1Q1rbb/1q1q3K/nb5B/rr6/3kNr2/1n4B1/1Rrbq1QQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 b4 d5 c4 f5 g4 a5 b6 h3 b7 a4 c5 d3 b5 d2 b6 h2 g5 d4 e3 d3 g6 f3 c6 f4 g7 a3 c7 a2 Nh3 f2 Bg2+ f3 Ba3 f1R Nf4 Nh6 g8B Nc6 b8R Bf5 c8Q Bg7 b7 Ng4 Qc7 Ra4 Qf7 Na5 Bc5 Nf2 Qfb3 Rb4 Rg1 h1R+ Bh3 h6 Na3 Bh7 Qc1 d1Q Nb5 d2 Qbb1+ Nd3 Ba7 Qb6 Bf7 Rf8 Nd5 Bb2 Rg8 f2+ Kh4 h5 Kg5 h4 Bh5 Rf6 Qc6 Rf4 Kh6 Bc3 Qc1 Nb2 Rb1 a1R Rbf8 Bh8 b8Q Raa4 Qc5 Rf7 Nd6+ Ke5 e4 Bf6 Qc1 Kd4 e5 Rhg1 e6 Rh1 Bf5 h3 e7 h2 e8Q Rhg1 Be4 h1Q Qed8 Qh2 Bf3 Kd3 Nb7 Qd6 Qdd7 Qe2 Qbe8 Rg3 Q1c5 Rc1 Qee7 d1B Re8 Qe1 Qf8 f1B Bh1 Kd2 Qg1 Bb5 Ne3 Kd3 Qcg2 Rh3 Q2h2 Rg3 Bg2 Rf3 Qhh1 Bg7+
3B2qQ/3nq2q/1R1b1RB1/2QqN1k1/b2N2n1/Q3NQb1/R4rr1/q1Kb3n w - - 0 1 illegal: No possible last move
Q3qR1b/2nq3b/1Kb1B1Q1/Nn5r/k3rQBB/1N2r1Nq/q7/3rRQ1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 h5 e4 a5 b4 f5 c4 f3 b6 Kc6 c5 Kb5 b7 f4 e5 h3 g5 f2 g6 h4 c6 a4 g7 h2 c7 f3 e6 a3 e7 a2 e8Q+ Nc6 b8N h3 Qe7 Qe8 Bg5 Nf6 g8B Na7 Nd2 Rh5 Bh4 Bf5+ Ne4 Bg7 c8Q Bh7 Qd6 Bh8 Qd2 Ka4 Q2f4 Nb5 Rd1 a1Q Qcc1 Qa2 Be2 f1Q Nc6 f2 Be6 Ra7 Qa1 Re7 Re1 Qg2 B2g4 f1R Ne2 Rf3+ Qe3 Rg3 Rhf1 h1R Nc1 h2 Nb3 Qh3 Rf5 Rf3 Nca5 Rf4 Ng3 Re4 Bg8 R7e5 Qf4 Re6 Qc6 Re7 Qc2 R7e5 Be6 Re3+ Kd2 d3 Qf1 d4 Rf4 Nc7 b5 Nfd5 b6 R5e4 b7 Nb5 b8Q Ndc7 Rf6 Qc8 Rf8 Qe8 Kc1 d2+ Kd1 Rf4 Qg6 Rfe4 Qc1 Rg1 Qf4 h1B Qa8 Bg2 Qa1 Rh1 Qc1 Qa3 Kc2 d1Q+ Kb1 d3 Qf1 Qd6 Ka2 Qdd7 Qd2 Qc1 Qdf2 Qc4 Qf4 Nd4 Kb2 Qa6 Kc3 d2+ Qd3 Qa7 Kc4 d1R Qdf1 Bf3 Nf5 Qa6+ Kc5 Qc4+ Kb6 Ndb5 Ng3 Qc2 Qff5 Qa2 Qff6 Rf4 Qe5 Bc6 Qd6 Rfd4 Qdf4 Rde4
qrn1B2n/k1r3K1/2Rr1b2/3r1RB1/b4N2/QBbbRqQ1/1Q4b1/1Nn2R2 w - - 0 1 illegal: No possible last move, all moves rejected
r2k1qn1/r2bN2q/1NR1K1NQ/1Q2R1b1/1Q1q2Rq/b6r/1bBB2nq/7R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 g5 b4 a5 e4 d5 c4 g3+ Kf3 a4 b6 g4+ Ke2 d3+ Kd2 g2 Kc3 f3 Kd4 g3 Ke5 d4 c5 f2 h5 f4 h6 a3 b5 f3 h7 d2 b7 d3 c6 a2 c7 Na6 b8R Nb4 b6 Bd7 c8R Nd5 b7 Ba3 Rc6 Nf4 Nh3 g1B Qa4 d1R Nd2 g2 Nc4 d2 Bd3 f1Q Nb6 f2 Bc2 Qd3 Qb4 f1Q Rbc8 Bf2 b8N g1Q R8c7 Ng2 Nf4 Qe1 Ng6 Be3 Re6+ Qe7 Rc6 Kd8 Rh4 Qe8 Rg4 Qh2+ Kf5 Qd4 e5 Qeh4 Rb1 Rh1 Ra1 d1Q Bd2 Bg5 Rb1 Nf6 Rc1 Rf8 h8Q Rf7 Qh6 Qf8 Rb1 Be8 Re7 a1B e6 Q1g1 Re1 Rg7 Re5 Rg8 Rh7 Rg7 Rh8 Rga7 Rh7 Bf7 Rh8 Qb1 e7+ Ke8 Rh7 B1b2 Rh8 Bc4 Rh7 Bb5 Ke6 Ba4 Rf7 Ng8 Rf1 Q2g3 Rd1 Rh3 Rh1 Qgf4 Nc8 Qh2 Nd7 Qbf1 Ndb6 Qfd3 Nh8 Qh7 Ng6 Bb5 Ree1 Rf3 Rc3 Qdh8 Kd5 Kf7 e8Q+ Kf6 Qe2 Be8 Qeb5 Rh3 Rc6+ Kf7 Ke4 Qd4+ Kf5 Qh5 Re5 Qh4 Rcc5 Bc6 Ne7 Ke8+ Ke6 Kd8 Rc4 Be8 Rc6 Bd7+
5r2/1q1RR1qB/3NN1q1/n3qQ1N/1kn1Q1b1/2r1b1B1/1q1nn2R/R2Q2rK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 g4 h5 Kg2 f5 c4 a5 e4 h3+ Kh2 f3 g5 d3 g6 f2 b6 a4 b5 Kc5 g7 d5 e5 d4 e6 f4 b7 a3 e7 d2 e8N d3 b6 a2 Nc7 f3 Bb2 h4 Bg2 f1Q Be5 f2 Qf3 d1R Nd2 Nc6 b8Q Qd4 b7 Qb2 Bd4+ Kb4 c5 Nh6 g8Q Bg4 Nc4 d2 Qg5 Rg8 Qgf4 Qe1 Qe8 Nf5 Qf7 Ne3 Bg7 Rc1 Ne5+ Nc4 Ne2 d1N Ne6 Na5 c6 Rc3 c7 Bc5 c8R Be3 Rc7 Raf8 Ng3 Qee2 Re1 f1N+ Kh1 h2 Q7f5 Nd2 Nf7 Qd3 Be5 Qd7 Rb1 a1Q Nd6 Qg7 Rc1 Qab1 Q4e4 Qd3 Rb1 Qd4 Bf4 Qde5 Ra1 Qg6 Bf1 Rg7 Bd3 Rgg8 Kg2 Qeg7 Nh5 h3+ Kg3 h1Q Rd7 Qf1 Kh2 Qe2+ Kh1 h2 b8R+ Nb7 Re8 Na5 Rf1 Qe1 Ree7 Qg3 Bh6 Q3e5 Rf2 Nc6 Bf4 Na5 Kg2 h1Q+ Kg3 Ra3 Rh2 Nc3 Bc2 Qhb1 Qd1 Ne2+ Kg2 Rc3 Bg3 Q1a2 Qg5 Qa4 Kh1 Qab5 Qg2 Qb7 Qd5 Q6h6 Bh7 Qhg6 Qg2 Rf2 Qc6 Rgf8 Qe4 Rg2 Qgf5 Rg1+
Q1n1b1n1/bRqQ2Nn/4rR2/6BN/2b1qb1r/kN2Q3/bNB1R3/r4K1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Kc5 g5 Kb4 g6 a5 b3 h5 e5 d5 g7 f5 c5 f3 e6 h3 c6 h2 e7 f4 e8R f2+ Ke2 d3+ Kd2 d4 b6 f3 b7 h4 c7 h3 Bg2 f1N+ Ke1 a4 Re6 a3 Re5 d2+ Kf2 a2 Qe1 d3 Rf5 Rh4 Ne2 Nd7 b8Q+ Nb6 Qa7 Ne3 Nd4 Bd6 Ne6 Bf4 Rf6 Ned5 Kf1 f2 Qe3 d1B Be4 d2 Bc2 Bd7 c8N Be8 Qd7 Qc7 Nd6 Ra6 Nc4 Nc8 Nb2 Rb6 Rg1 h1N Rg2 Bdh5 Rh2 Bhg6 Rg2 d1B Nd2 h2 Rb1 Ka3 b4+ Bd3+ Qe2 a1B b5 Bc4 Nb3 Rd6 b6 Rc6 b7 Ra6 Rf7 Ndf6 b8Q Nh7 Rf6 Rb6 Qed3 Bg4 Bd2 Bf5 Qa8+ Ra6 Rg5 Be4 Re5 B4g6 Re2 Bf5 Nd1 Bd4 Qe3 Ba7 Nb2 Be4 Ned4 Re6 Nf5 Nh6 g8N Bed3 Nge7 Ng8 Ng3 Be4 Nef5 Bed3 Kg2 f1R Nh5 Re1 Nfg7 Rc1 Nd1 Bdg6 Kf1 Bf5 Na5+ Bfd3 Rb7 Ra1 Bb3 Bb1 Bc2+ Bd3 Nb3 Bc4 Qe5 Nf2 Qg5 h1Q+ Qg1 Qf3 Nb2 Nh1+ Qf2 Qe4 Qfd4 Be5 Bg5 Bf4 Qe3 Ba2+
r1rQbq2/3B1Q2/3n4/r3k2b/4N3/Rb1R1q2/1NN1BBNq/Kqbb2Qn w - - 0 1 illegal: No possible last move, all moves rejected
4q1r1/kr1B4/1b1rR1nb/rQN5/Nb2QNKb/q1B5/n1bB1Q2/2N3qR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 a5 c4 d5 e4 Kd7 h5 Kc7 e5 Kb6 h6 a4 e6 f3 Kg3 f4+ Kf2 d3 e7 d4 e8Q a3 h7 d2 c5+ Ka7 c6 d3 c7 a2 Qc2 d1Q Rh5 d2 Ba3 Qc1 Qe7 d1R Bd3 Bf5 Qd6 Bh6 Qe6 Na6 Nc3 Ne7 Nd5 Rg8 h8B Qe8 Bc3 Ng6 Rh1 Rb8 Bf1 Rb7 Bh3 Rd4 Qb2 Bc2 Qe4 Rd3 Rb1 a1B Ne2 Rd2 Qa2 Qb2 Rbe1 g3+ Kf1 f2 Kg2 f1R Bd7 f3+ Kh3 f2 Ndf4 g2 Kg4 g1B Nc1 Rd6 c8N+ Kb8 Nb6 Ka7 Re2 Bh2 Qf7 Bg3 Na4 Bh4 Bd2 Qa2 Bb2 Qa3 Bbc3 Rd1 Qf8 f1Q Qf6 Rd5 Qfd4+ Rc5 Qf2 Qe1 Qed4 Bb2 Re6 Qe3 Qe4 Qe1 Be3 Rd6 Bed2 Qd1+ Kh3 Qg1 b6+ Kb8 b5 Nb4 Bc8 Na2 Bd7 Rbc7 b7 Ka7 b8N Rb7 Na6 Ba1 Qff3 Rcd5 N6c5 Rf5 Be5 Bc3 Qf2 Bb4+ Bec3 Qh2+ Kg4 Qg1+ Kh5 Rfd5 Qf5 g4 b6+ Ka8 Qe5 g3 Kg4 g2 Qe4 Kb8 N5b3 Ra5 Nbc5 Rc7 b7 Ka7 Nb2 Kb6 b8Q+ Rb7 Qc7+ Ka7 Qcc6 Qf1 Nba4 g1B Qb5 Qe1 Qfe2 Bd4 Qf2 Qe3 N5d3 Bb6 Ndc5 Qe1 Qff3 Qf1 Qf2 Qg1+
2BQb1n1/KRnn1q2/3B1Rb1/4n2Q/b1n4b/QrrN1QN1/B3n2k/R6n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 a5 b4 h5 e4 d5+ Kd3 f5 c4 a4 b6 f3 c5 f2 c6 a3 b5 a2 c7 h3 b7 h2 g5 h4 g6 h3 g7 f4 b6 f3 Na3 Nd7 b8R Qe7 b7 Qf7 Nb5 Be7 Qe1 Ra3+ Qc3 Rb3 Na7 Bh4 Ba3 Kf4 e5 Kg3 e6 Ne5+ Kd2 d3 Ke3 d4+ Ke4 d2 Kd5 d1N Kc5 d3 e7 d2 e8Q Bf5 c8Q Bg6 Bd3 f1N Rb1 a1N Bf5 Nb2 Qcc6 d1B Bc8 Ne3 Ne2+ Kg2 Rf1 h1B Qa4 h2 Ng3 f2 Nc6 Nbc4 Nb4 Nd5 Nd3 Nc7 Ra8 Rh5 b8Q Rf5 Bb4 Rf3 Qa3 Re3 Ra6 Bdh5 Rfc1 f1N Rf6 Kg1 Qd8 Bc6 Qb5 h1N Rd1 Kh2 Rb2+ Nc2 Ra1 Nb6 Qba5 Ba4 Qb5 Nh6 g8B Nd2 Qbe8 Ndc4 Qb5 Ned7+ Kc6 Rf3 Kb7 Nce5 Ka7 Nbc4 Bd6 Re3 Rbb1 Nd4 Qd5 Rf3 Qca5 Rc3 Rb7 Ne2 Qab5 Re3 Qf3 Rb3 Nf2 Rec3 Nd3 Qh7 Bf7 Ng8 Be6 Be8 Qbd5 Bhg6 Qh5 Qf7 Qdf3 Nd2 Bc4 Rb5 Bb3 Ndc4 Ba2 Rbb3
1nN1n1NR/2N1KQ1N/3b2Q1/1r1b1q2/3r4/bqq4n/kb1RBRrn/3Q2B1 w - - 0 1 illegal: No possible last move, all moves rejected
2KN1r2/R1Bqb1B1/2BN4/2k1rb2/1q1qR1n1/Q1qrn2b/Q1bN4/n5NQ w - - 0 1 illegal: No possible last move, all moves rejected
1K3Qn1/1Nr3q1/B1r2B2/1N1NR2q/qN2Rr2/2Rb3Q/1kn1bqBb/3n3n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 d5 b4 f5 e4+ d3 c3 h5 g5 a5 g6 f3 g7 f2 b6 h3 b7 f4 b5 a4 b6 h2 Ra3 f3 Bg5 h4 Bg2 f1Q Nh3 d4 Nf4 d2 Bf6 d3 Nd5 f2 Qh5 Na6 b8R d1N b7 d2 Qf3 Rh7 Qh3 Qe2 Re1 h1Q Rb3 Qf3 Na3+ Kd3 Rb5 f1R c4 Bf5 c5 Qa5 c6 Nb4 c7 Nc2 Rc8 Ra6 b8N Rc6 Na6 Bg6 Rc5 Bd6+ Ke6 Qe3 Kd7 Rf4 Nb5 a3 e5 a2 e6 a1Q e7 Q5a4 e8N Qf3 Re4 Qb2 Ne3 Qf2 Rce5 Qbd4 Nd5+ Kc4 Re2 Bd3 R2e4 Kb3 Nab4 Kb2 Kd8 Nc3 Kd7 d1B Kd8 B1e2 Kd7 Bc5 Ned6 Nd1 Nb7 Bd6 Kd8 Nh6 g8Q Qh2 Qf5 h3 Qf8 Qh1 Qg4 h2 Qh3 Rg7 Rb8 Rf7 c8B Rfc7 Ra8 Ng8 Ra5 Qb3 Ra3 Qa4 Rc3 Qda7 Na5 Qad4 Ba6 Qa7 Nb7 Qad4 Re6 Qe5 Re7 Qh5 R7e5 Qhg1 Bh1 Qg7 Bf3 Rf7 Bg2 Bc7+ Kc8 h1N Na5 Re7 Kb7 Bb8+ Ka8 Bd6 Nb7 Rec7 Kb8 Rh4 Rf5 Bh2 Rfe5 Rf4
NnkBRbR1/1rnbR3/1K2QrQ1/BBB3n1/3rb2N/r5q1/3n4/n1n3Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 h5 e4 a5 b4 f5 c4 f3 b6 a4 e5 a3 c5 f2 b7 h3 b5 a2 g5 h2 b6 f4 g6 h4 g7 h3 Bd2 f3 Bc3 Qg5 Qc2 Qg3 Qd1 Ra3 Nd2 Rh7 Nc4 Nh6 g8Q Nf7 Qg6 Ng5 e6+ Kd8 c6 Bd7 Be2 f1R Qc1 f2+ Nf3 Re7 Rg1 h1B Qe3 h2 Re1 a1N Nh4 Bf3 Qc1 h1N Rg2 Na6 b8B Kc8 Bd6 Nb8 c7 Rg7 e7 Be4+ Kd2 d3 Ba5 d4 e8R+ Kb7 Re7 Kc8 Bc5 Rh7 Bd1 Rf7 Ba4 Rf6 Qd1 Rg1 Bb5 f1N+ Kc1 d2+ Kb2 d3 Qg4 Ra2+ Kc3 d1N+ Kb4 Nc3 Qd1 d2 Qc1 d1R Re3 Kb7 c8Q+ Ka8 Qce8 Kb7 Qef7 Nf2 Qe6 Rd4 Re2 Ng4 Qe3 Rh1 Qg1 Kc8 Re3 Nd2 Re1 Qc7 Ree2 Rh3 b7+ Kd8 Re3 Ne2 Rgg3 Nc1 Re2 Rd3 Nb6 Ne3 Na8 Rd6 Rgg2 Ra3 Re1 Ra6 Rg4 Ra7 Rg3 Rd3 Ka4 Nd5 Ree3 Na6 b8B Kc8 Rg2 Qh2 Bbc7 Nb8 Bd8 Rd4+ Bb4 Nc6 Re8 Ngf3 Qeg4 Kb8 Qh7 Qf4 Ba6 Bc2+ Kb5 Nc7+ Kb6 Rg3 Be2 Kc8 R3e7 Nb8+ Qe6 Be4 Bc5 Rh3 Rg6 Ng5 Rg8 Ra3 Bb5 Qg3 Qg6 Rb7#
b1NR3b/1R2RqN1/3R2bB/k2NQb1r/5b2/r5n1/1rnb1K2/1n1Q1nBB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 c4 g5 e4 f5 h4 a5 b4 d5 h5 Kd7 e5 Kc7 c5 g3 h6 g4 c6 Kb6 h7 a4 c7 d3 e6 f3 e7 f4 e8Q a3 Bb2 g2 Qb3 d4 Rh4 a2 Qe7 d2+ Kf2 d1N+ Ke1 g3 Qc2 d3 Qe5 f2+ Kd2 f3 Qe6+ Bd6 Qc1 Nc6 Nc3 Qe8 Rh5 Nh6 Nh3 g1R Nf4 g2 Re5 Ra3 Nh5 Qf7 Ng7 Nd4 Qc2 Bd7 Bc1 Nhf5 Re1 Bc8 Qe5 Ng3 Qb3 Bf5 c8N+ Kc7 Re4 Nc2 b6+ Kb7 Qb1 Ka6 b5+ Ka5 Nd5 Nc3 b7 Bb4 Be2 f1B b8R f2 b6 Rh1 b7 g1B Rd4 Bh2 Bf3 Bg2 Qb3 Rd8 h8B Rd7 Rb1 a1B Rb2 Rd6 Ra8+ Ra6 b8R Ra2 Rb1 Rb2 Ra7 Bg6 Rd7 Bh3 Re7 Bhf5 Rb6 Nh5 Qe4 Ra2 Ne8 Ne1+ Ke3 d2 Rbe6 Rb6 Ndf6 d1B Rd8 Ra3 Red6 Rb8 Bg2 Bf3 Qd1 Bb2 Qf4 Ba8 Nd5 Nc2+ Kf3 f1N Bd4 Rb5 Bg1 Ba1 Rb3 Nb1 Kf2 Bh8 Qe5 Rb6 Be3 Bd2 Bh6 Bhf4 Ng7 Nhg3 Rb4 Rh5 Bh1 Rc6 Rb8 Rb6 Rbb7 Rb2
1r2k1BB/4bR2/b3NB1b/3KQ2r/nb1Q3Q/b2rN1qq/2b5/1RQn1R1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 a5 c4 g3 h4 g2 c5 g4 h5 a4 c6 f3 b6 a3 h6 f2 b5 f4 c7 f3 e5 g3 e6 a2 b7 Be7 b6 Nd7 b8Q Nc5+ Kd2 d3 Kc3 d4+ Kc4 d2 b7 d3 h7 Qd6 Nh3 g1B Qe1 d1B Qb4 g2 Qb3 d2 Qb6 Nf6 Ng5 Bc2 Na3 d1R Bb2 Na4 Qd4 Ne4 Rb1 Qg3 Kd5 a1B Nc4 Rd3 Ne3 Ba3 Be2 f1R e7 Nf2 Ne6 Nd1 Qa7 f2 b8R Re1 Rb7 f1Q Qa6 Bf2 Qc4 g1B Ra7 Ba6 c8Q+ Kf7 Q8c5 Qfh3 Bg4 Rhb8 h8B Ke8 Bf5 Rf1 Bh7 Be1 Bg8 Beb4 Rd7 Bh2 Bc3 Re1 Rf1 B1b2 Qc7 Bc1 Qf4 Rb5+ Qc5 Rab8 Qh4 Qg7 Ra7 Bd6 Ba1 Qgg3 Bf6 R5b7 Qc3 Bdc5 Qb2 Bcd2 Qc1 Rb5 Bh8 Ndb2 Rg1 Qhh2 Nf4 Bdc3 Nc4 Qg7 Kc6 Qgg2+ Qe4 Bg7 Ne3 Nd1 Bf6 Qgh3 Qd4 Bh6 Rh1 Bd6 Rd7 Rh5 Ra7 Be5 Kd5 Q2g3 Rb7 Re2 Ra7 Rh2 Rf1 Rh1 Qb2 Rb7 Qc1 Kd7 e8Q+ Kc7 Rf2 Bed6+ Qe5 Kd7 Ne6 Ke8 Rf1 Rb8 Rf7 Be7
2q2q1q/3Qb3/bb1bR3/2r1q1kn/1Bb1Q1B1/1NNb4/n2K1QNR/2r2QR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Kf6 b4 g5 h4 d5 b6 a5 c5 a4 h5 d3 c6 d4 c7 g3 h6 f3 b7 f2+ Kd2 a3 b5 g2 h7 g4 b6 a2 e5+ Kg5 e6 f5 e7 f4 e8R f3 Bb2 g3 Rh6 Nc6 b8N Ba6 c8Q Nb4 b7 Bd6 Qc6 Qc8 Qb6 Nf6 Rh2 Nh5 Be2 f1B Nd7 f2 b8Q Ra7 Bg4 Rc7 Ba3 Rc5 Ne2 g1B Rh3 g2 Rf3 Bgh2 Nec3 g1B Nf6 Be7 Qe1 Bhd6 Qe4 Be2 Bh3 f1Q Ng4 Qf2 Rg3 Qf8 Rg2 Rg8 h8Q Bf1 Kd1 d2 Qhh7 Bfc4 Rh2 Rg6 Ne3 Rf6 Ng2 Rf1+ Qe1 Bf2 Qd3 Rg1 Ke2 d1B+ Kd2 Bc2 Qde4 d3 Q8b7 Rf1 Q1e2 Rc1 Bg4 Bg1 Qf2 Qh8 Qb5 Qf8 Ke3 d2 Q7d7 d1Q Nd2 B2d3 Nb3 Qdf3+ Kd2 Q3f5 Rb1 Qe5 Ra1 Bf7 Rb1 a1Q Qbc4 Na2 Bb4 Bg8 Qcf7 Qh8 Q7f3 Bgc4 Qf7 Bd8 Re6 Bb6 Qf1 Bd4 Q7f3 Bf6 Q3f2 Bfe7 Q1e2 Rh1 Rg1 Qe5 Qef1 Qeh8 Ne2 Qae5 Nc3 Nc1 Qd1 Qh7 Re1 Na2 Qb1 Qhh8 Rd1 Re1 Rc1 Re3 Rg1 Re1 Qd1 Rf1 Qde2 Ra1 Qef1 Rc1
k1B3rn/3N1n2/B1RbQ2Q/1b1rr3/n2b2R1/N1QBrn1K/bqnB4/6R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 f5 Kg2 d5 e4 Kd7 c4 Kc7 b4 Kb7 g5 h5 e5 h3+ Kh2 f3 e6 f4 b6 h4 g6 a4 b5 f2 c5 a3 e7 d3 e8B d4 g7 f3 Bg2 f1B Bf4 d2 Qc1 d1N Bf7 d3 Bd6 a2 Qd2 Rh5 Ne2 Nc6 Bg6 f2 Qc2 d2 Qa4 Ne3 Qb3 d1N Qb4 Nc3 Nc1 Ne7 g8R Rd5 Qb3 Ne5 Rg1 Na4 Bd3 Nf7 Qc3 Be6 Nb3 Qb8 Rg4 Ng6 Na3 Ngh8 Bf4 Nc2 Rc1 a1B Bf3 Bd6 Bfe2 Ra5 c6+ Ka8 c7 Re5 Nc5 Ba2 c8B Qb7 Qe1 Bd4 Qc3 Qb8 Nd7 Rd5 Kh1 h2 Bd2 Qb7 Bc4 Qb8 Bed3 Be2 Kg2 f1N Kh3 h1R+ Kg2 Nh2 Kh3 Re5 b7+ Ka7 R1g3 Re1 Rg1 Nf3 Nf8 Kb6 Nd7+ Kc7 b6+ Kc6 Bf5 Rad5 Ba6+ Bec4 Bd3 R1e3 Kg2 h3+ Kg3 h2 Kh3 Qa7 b8Q Qb7 Qa7 Qb8 b7 h1R+ Kg3 Qa8 b8Q Qb7 Kg2 Qb2 Qbb3 Rh7 Qab8 Rg7 Kh3 Rg8 Q8b4 Bb8 Qf8 Bd6 Qh6 Kc7 Nb6 Kb8 Nd7+ Ka8 Qb6 Bf8 Qbe6 Bb5 Qb3 Na1 Rc6 Bd6 Qc3 Nc2
B1Q2N1r/3N1N1n/2Kn2nB/n2R4/rqQR1q1k/b1N5/b1R1b3/2Qb2nn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 h5 g4 f5 b4 a5 e4 d3 c4 h3 e5 a4 b6 d2 c5 h4 c6 a3 c7 f3 b7 a2 e6 h2 e7 f2 e8N f4 b5 h3 b6 f3 Nc3 Qe7 Ng7 Nc6 b8N Ne5 b7 Qb4 Bc4 f1N Bb5 f2 Nf5 Ra4 Nce2 Ng6 Nd6 Kh4 g5 Ng3 Qf1 d1B Nc3 Be2 Bc6 Ne4 Nf7 Nd6 Be3 Be7 Rc1 a1N Rc2 Nb3 Qc1 f1Q Bd2 Na5 Nf3+ Kg3 Nh4 Qff4 Re1 h1N Rd1 h2 Be3 Kg4 Rd4 Nf2 Bd2 h1N Be3 Nf8 g6 Nh7 g7 Nh3 Ng6 Ng1 Nf8 Kh4 Bd2 Nh6 g8Q Ng4 Be3 Ne5 Bd2 Ng6 Be3 Ne8 Bd2 d6 Be3 Bh3 Nbd7 Bf5 b8Q Bfd3 Rd2 Bb1 Qb5 Ba2+ Qc4 Bf6 c8R Be7 Ke6 d5 Ba8 Bc5 Rc2 Nd6 Rb8 Qb3 Rb5 Ba3 Qc8 Qb4 Rc5 Ne5 Ke7 Ng6+ Kd8 Qe4 Kc7 Qg4 Bh6 Qf4 Re4 d4 Rd5 d3 Red4 Nab7 Kc6 d2 Qg7 d1B Qe5 Bb3 Qe4 Bbc4 Qd3 Ba2 Qc4 Na5+
N1b5/Nb1kr2N/1b1r1Q2/1R2K3/2R2rbq/n2qBN1b/nQB3B1/1br2R2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Rh6 b7 Ra7 c7 Nf6 g8Q Na6 b8N Ne4 b6 Nd2 b7 Rd6 Bg2 f1R Qg3 f2 Qf4 Nb4+ Ke2 d3+ Ke3 Nc4+ Kd4 d2 Bb2 Na3 Qe2 d1B Ke5 d4 Nd2 d3 Bc1 Bc2 Ndf3 d2 Nd7 d1B b8R Bb1 Qf6 Bh6 Nb6 Be3 Na8 Bb6 Qc2 Kd7 Ng5 Bg4 Be3 Rc1 Qe2 f1B Qb2 Rc4 Nh7 Rf4 Nf3 Rb7 Rg1 h1B Qh8 h2 e8B+ Ke7 Bg6 Kd7 Bc2 Qh4 Bh3 Bhg2 Qf8 h1Q Qf6 Ba6 Rd1 Qf1 Rd4 Qd3 Rc4 Bf1 Bg2 Ra7 Bh1 Bfh3 Bg2 Bab7 Bb3 Bc2 Rf1 Bb1 Bc2 a1R Nd4 Ba6 Nf3 Bcb7 c8N Na2 Ne7 Bc8 Nc6 Rc7 Na7 Bab7 Nfg5 Ke8 Nf3 Rf7 Nfg5 Kd7 Nf3 Re7+ Qe6+ Ke8 Qd4 Bc5 Qc3 Be4 Rbb4 Bb6 Nh2 Beb7 Nf3 Kd8 Qb2 Ke8 Bb3 Bc2 Rb5 Rc1 Ba4 Bb1 Bb3 Kd8 Bc2 Ref7 Qh6 Kd7 Qf6 Re7+
rqQ3B1/k2rKQ2/B4N1n/2nrB3/brNRr3/4N1b1/1r3rbr/R4BQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 e4 Kc7 g4 Kb6 b4 f5 c4 f3 c5+ Ka7 c6 f2 c7 d3 g5 d4 g6 a4 g7 h3 Bf4 a3 Nc3 a2 Rh2 h4 Bg5 d2 Nge2 f4 Rg2 f3 Qb3 d1R Rg4 h2 Nf4 h1B Bf6 h3 Nfd5 d3 Ne3 d2 Nc4 h2 Nd5 Nh6 g8B Bd7 c8B Bg2 Ba6 h1R Nde3 Rh2 Bg7 Qc8 Kf6 Bd6 e5 Re1 e6 d1R e7 Rd5 e8Q Rh7 Qb1 Bg3 Ke7 Bc6 Qf7 Nd7 Bb2 Nc5 Be5 Qb8 Rd4 Rg7 Bd3 Re2 Qg1 Rb2 Bf1 Bd7 Rb1 a1R Re1 Ra4 Ra1 Qc7 b6+ Kb8 b5 Rab4 b7 Ka7 Bd3 f1R b8N Rff2 Bf1 Be8+ Nd7 Qb8 Nf6 Rg4 Qg6 Rfd2 Qf7 f2 Bd3 f1R Be2 Rf2 Bd3 Bd7 Bf1 Qc7 b6+ Kb8 b7 Re4 Ra2 Ka7 Ra5 Qc8 Ra1 Ba4 Na5 Kb6 b8Q+ Qb7+ Qc7+ Ka7 Nac4 Rd1 Nd7 Rd3 Qc8 Qb8 Nf6 Rd6 Rd5 Rd1 Rd3 Rdd2 Rc3 R2d4 Rd3 R4d5 Rd4 Rd7+
kq1Q4/1n1BB2N/q2R2n1/1r1b1R1b/nq4R1/q1RKb2Q/1b5Q/NB2rn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 g4 a5 e4 d5 c4 Kd7 b4 Kc7 b6+ Kb7 c5 f5 b5 h3 e5 h4 e6 f3 g5 h2 g6 a4 g7 h3 e7 d3 e8R a3 Re2 d4 Re7+ Nd7 Nc3 f2 Na4 f4 Re8 f3 Qe2 a2 Re5 Rh5 Rf5 Ne7 g8Q Ng6 Qe5 Bh6+ Qe3 Qe7 Be2 f1Q Bb2 f2 Rd1 a1B Ba3 Bb2 c6+ Kb8 b7 Nc5 Qa2 Be6 Nf3 Bd5 Rg1 h1Q Ng5 h2 Nh7 Qhe4 Rg4 h1Q c7+ Ka7 b8R Qh2 c8B Nb7 Be6 Qg3 Rd8 Qb8 Rd6 Qf3 Rc6 Qb4+ Rc3 Qfg3 Nc5 Qgd6 Rf8 Qh3 Bf5 Qa6 Bd7 Rf5 Nb3 f1N+ Ke1 Bf4 Na1 d2+ Kf2 Re5 Bd3 Re6 Qf3 Re1 Bb1 d3 Rf5 Bh6 Qg2 Bg5 Qb3 Bh6 Qh2 Bg5 Rdc1 d1B Rc6 d2 R1c3 Qd3 Rd6 Bh6 Rgg5 Bh5 Rg4 Bf7 Qe6 Be3+ Kf3 d1N Qb3 Nd8 b6+ Kb7 Qe6 Ra7 Qb3 Ka8 Qe6 Rc7 Qb3 Rc5 b7+ Ka7 Qe6 Rb5 Qb3 Qd2 Qe6 Qc1 Qb3 Bc4 Ke4 Bg8+ Kd3 Bd5 Rc8 Nc3 Rc5 Na4 Rc3 Bf7 Qe6 Bb6 Qe3 Bd5 Qeh3 Be3 Rdc6 Qb3 Be7 Qa3 Rd6 Qb4 Ra3 Qcc5 Rb3 Qa3 Rc3 Qcb4 Rdf6 Q8d6 Re6 Kb6 b8Q+ Nb7 Qc8 Ka7 Qd8 Qb8 Rd6 Ka8
2b5/N1Kbq1b1/N1r1R1B1/k1N1R1qB/3qQB1Q/b1b1n1Nn/1r5p/4n2Q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 f5 Kc7 g5 Kb6 f6 a4 f7 e3+ Kd3 h3 g6 e4+ Ke2 h2 g7 a3 Ra2 h4 Nd2 h3 Nb3 Qg5 Nc5 Ne7 g8B Nd7 Bh7 Ne5 Bg6 Ra6 Qd3 Bg7 f8Q Ng4 Qf2 Nf5 Qh4 Nf2 Bg2 Bd7 Bf3 Rb8 Bfh5 Rb7 Ra1 a2 Bd2 Qe7 Re1 a1B Qb1 Bb2 Qc1 Kc7 b6+ Kc6 Qd1 Ba3 Qa1 Rb8 b7 Kb6 b5 Qg5 Bc1 Ka5 Qb1 Rc6 b6 Rbc8 b8N d3+ Kf1 d2 Ke2 d4 b7 Rb6 Nba6 Rb2 b8Q Rc6 Qe8 Bc8 Nf3 Qe7 Ng5 Bd7 Rhg1 h1B Rg3 h2 Rf3 Nh6 Rf6 Nh3 Re6 Ng4 Re5 Qf8 Qe6 Qf7 Qf5 Qe7 Qf1 Bg2 Qh1 Bc8 Nf7 Bd7 Nd6 Bc8 Nf5 Bf3+ Kf1 d1Q Ng3 d3 Qc2 Be2+ Kg2 d2 Re6 Bd3 Qb1 e2 Re5 e3 Kf3 Ng1+ Kf4 Bdf5 Qbe4 Bfd7 Re6 Nh3+ Kf5 Nf6 Ke5 Ng4+ Kd5 Qa4 Re5 Qb4 Re6 Qg5+ Re5 Rc7 Kd6 d1Q+ Bd2 Rb7 Re6 Rb6+ Kc7 Rd6 Rf1 e1B Rf5 e2 Bf4 Bd2 Rfe5 e1N Nd3+ Ka4 c5 Bc3 c6 Ne3 Ndc5+ Kb5 Kb8 Qdd4 c7 Bb7 c8N Rc6 Na7+ Kb6 Nb3 Qbe7 Nbc5 Bbc8 Rf6 Rd6 Rfe6 Ka5+ Kc7 Rc6+
2knQ3/3q2n1/1KBr1rR1/rN2bQBQ/3BqR1q/2q1R1b1/q2p2b1/1N4R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 a5 c4 h5 e4 f5 b4 h3 c5 f3 e5 h2 g5 f4 b6 a4 b7 f2 b5 f3 g6 a3 g7 a2 b6 h4 Na3 h3 Nc2 Ne7 g8R Nbc6 b8B Ra5 b7 Qc7 Rg6 Nf5 Ne2 Rh6 Bf4 Ng7 Rg4 Bd6 Nc3 Nd8 Bg2 f1R Rg6 f2 Rg1 h1Q Na3 h2 Nab5 Qc6 Rc1 a1B Ba7 Qa6 b8Q Bb7 Qh5 Ba8 Qb6 Kc8 e6 Be5 Bd2 Bg3 e7 Rd1 e8R f1Q+ Re2 Qf6 c6 Qh4 Be4 Qf3+ Re3 h1Q c7 Qff6 Qc5 Qhf3 Kc2 d3+ Kb3 d4 Bc6 Qfe4 Kc4 Qff3 Rc2 Rf1 Bc1 d2 Nb1 d1Q Rf2 Bb2 Qce5 d3+ Kc5 Bc3 Qe8 Bce5 Bb6 Qff6 Rf4 d2 Bb2 Qdg4 Ba1 Qd7 Bd4 Ra1 Ba5 Bb7 Bb4 Qa2 Kb6 Rf3 Be7 Rf2 Rfg4 Qff3 Bg5 Rf1 Re1 Qc3 Re3 Rf6 Rf4 Qae6 Rff3 Ra5 Rf4 Qa2 Qe6 Rf7 Qf6 Bd6 Qe6 Ba6 Rgf6 Rf8 N5a3 Bf1 Qf5 Bg2 Rf7 Re6 Rf6 Rf7 Rh6 Rff6 Nb5 Qf7 Bd5 Kd7 Rg6 Be5+ Bc6+ Ke7 Rc1 Rd6 Rcf1 Nb7 c8Q Qfe6 Qg8 Qd7 Qge6+ Kd8 Rg1 Kc8 Qe8+ Nd8
b1q4k/bB1BNRrq/1Rn4K/b3N1Q1/RQ4N1/5rqb/rbpB1n2/B7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 Kf7 g4 Kg7 d4 h5 e4 a5 g5 h3 b6 h4 b5 a4 e5 c3 e6 a3 b7 c4 e7 c2 e8B h2 d5 a2 g6 c3 d6 h3 b6 Nf6 d7 Ng4 Nd2 Nc6 b8B Rg8 b7 Bb4 Bf7 Ba5 Ne4 Kh8 Be8 Nf2 Qd4+ Rg7 Bd2 c1B Bg2 c2 Qb4 Bb2 Be5 Ra7 Rf1 a1B b8R Qg5 d8Q Qg3+ Ke2 f3+ Ke3 Bb7 Qg5 Ba8 Rb6 Ra6 Nf6 Raa7 Ne2 Ra6 Rhg1 h1Q Bd7 h2 Nc1 Ra7 Ng4 Ra6 Be1 Ra7 Nd3 f4+ Kd2 Bd4 Bf6 Bab2 Nde5 Ne4+ Kd3 f2+ Bf3 Qhg2 Bd2 h1Q Ra1 f1R Ra4 Nf2+ Ke2 Nd8 Bb7 Qh7 Rh1 Q2h3 Rh2 Ne4 Rf2 Nc6 Rf3 Bg1 Rf2 f3+ Ke3 Qgh4 Kf4 Q4g3+ Kf5 Ra6 Re2 f2 Re3 Ra1 Rf3 f1B Nf7+ Kg8 Bdc8 Bc5 Ra2 Bc1 Rb5 Rb1 Ba1 Rb3 Ne5 Ba7 Rb6 Nf2 Kf6 Bb2 Ne3 Re7 g7 Qd7 Ng4 Bh3 Rf5 Qc7 Bd7 Rf3 Ra3 Qc8 Rf4 Qh5 Kf5 Kh7 g8N Kh8 Kf6 Qhh4 Kg6 Rh7 Ne7 Rf7 Qc5 Bb4 Qd6 Rh7 Rf7 Ra4 Ra2 Ba5 Qb4 Raa3 Nh6 Qe4+ Kh5 Rg7 Nhg4 Ra4 Kh6 Qf5 Ra3 Qd3 Rc3 Ra2 Ra3 Qe4 Ra4 Qh7#
4r1KB/1QBbq1Qn/b1R1R3/1Qn5/1nN1r3/2Rq1p1N/1n5n/1Rb1qB1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 d5 c4 a5 b4 f5 b6 d3 e3 d4 b5 h3 b7 a4 g5 a3 c5 d2 g6 f3 g7 f2 b6 h2 c6 f4 c7 d3 Bh3 f1N Be6 a2 Qb3 d1Q+ Bg4 d2 Nh3 Qe7 Qc3 Bd7 c8R Nf6+ Kh6 Nd5 Qc5 Ra4 Qb5 Nb4 Bf5+ Kf3 e4 Kg2 e5 Qe1 e6 d1N Ng1 Nb2 Na3 f3 Rb1 a1N Bg5 Nb3 Nh3 Nc5 Bd3 Qc3 Be2 Qd3 Rc6 Rg8 Bf6 Rh8 Kg5 h5 g8Q h4 Nc4 Bh6+ Kh5+ Bg5+ Qh7 Re8 Bh8 Be3 Rc1 Bf4 Rc3 Bc1 Qh6 Ne3 Qg7+ Ng4 Rd1 h1B Bf1+ Kh2 Re1 Bg2 Rd1 Kh1 Re1 Ne4 Kg6 Nh2 Kh7 Nc5+ Re4 N8a6 b8Q Nc7 b7 Bg5 Ng1 h3 Qa8 Bc1 b8B Qf6 e7 N7e6 Be5 Nf8+ Kg8 Qfd6 Re1 Qf6 Be2 Bf1 Qab7 Rea8 e8R Qd4 Qg5 Be3 Qf4 Na2 Rb6 Kg2 Na3 Ng4 Rc4 h2 Qg5 h1Q Rb1 Bc1 Ree6 Re8 Rc3 Qe7 Rbc6 Qd2 Qa5 Re4 Nh3 Nb4 Bg3 Nh2 Qg7 Qg1 Bc7+ Kh1 Ba6 Bc4 Qa4 Qge1 Qa5 Bb3 Bf1 Qd3 Qaa6 Bc4 Qab6 Bb5 Nc4 Ba6 Qb5 Nh7+
4bk1b/1n3b2/2N1RQ2/nq5K/1n3BBp/B1qq1r2/2R1B2R/rqN1QN1q w - - 0 1 illegal: No possible last move
n1n1b3/b2R4/2qN1r2/1B1K2Q1/qBR3pr/2N2RrN/1r3Rr1/kn1Q1q1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 h4 d5+ Kb3 a5 c4 f5 e4 g5 b6 a4+ Kc2 d3+ Kc3 d2 b4 d4+ Kd3 a3 c5 a2 Kc4 g3 b5 f3 b7 d3 b6 g2 h5 f4 h6 f2 h7 g4 c6 f3 c7 Ra3 Rh6 Qd6 Rh3 Bd7 c8N Na6 b8R Nc7 b7 Na8 Nc3 Ne7 Nce2 Be8 Rb1 a1Q Rb2 Qc6+ Kb4 Bh6 Nc3 Kd4 e5 Be3 Nd6 Nc8 e6 Ra2 Be2 f1R e7 f2 Rf3 Ra3 Nh3 g1R Rc2 Rg2 Bb2 Ra2 Ba3 Rfg1 Kb3 f1Q Bb4 Rg3 Rc1 R1g2 Rf2 Rf8 h8Q+ Rf6 Qh6 Rc2 Qg5 Qa5 Qe1 d1N Rf3 d2 Bb5 Nb2 Qd1 Nc4 Rf2 Na3 Rf3 Ncb6 Rd8 Nb1 b8Q Nc8 Rd7 Ra2 Qb7 Qa7 Qe1 d1R Rc2 Bg1 Rcf2 Rad2 Qe2 Re1 Qd1 Re5 Qg6 Rh5 Qf5 Rh4 Qg5 Bh5 e8R Qaa6 Re5 Be8 Rc5 Qa1 Rff5 Qa5 Rc4+ Kd3 Re2 Ba7 Ref2 Qc5 Re7 Rg1 Qh1 Qc6 Rd7 R1g2 R5f4 Ke3 Rc5 Re2 Kc4 Qa4 Qb3 Kd2 Kd4 Kc1 Qd1+ Kb2 R4f3 Rd2+ Ke5 Ka1 Rc4 Qb6 Ke4 Rb2 Kd5 Qc6+
bkNR4/1B2nQBn/2Rrrb2/3b4/qbBp1QN1/1bq3N1/B2K1n2/1q3R2 w - - 0 1 illegal: No possible last move, all moves rejected
bk1q2n1/6R1/r1r2Nb1/Q2Nq1r1/1p6/2bR2BR/R2QrKBN/2n1Q1rq w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Kd7 g4 c5 e4 Kc7 d4 h5 g5 f5 a5 b5 a6 c4 a7 h3 g6 c3 g7 b3 e5 b2 e6 h2 e7 f3 e8Q f2+ Ke2 c2 Na3 b1B Qe6 f4 Qd2 b4 Nc4 h4 Ra3 f3+ Ke3 h3 Ra4 Nd7 Bg2 f1R Nb6 f2 Nf3 Ne5 Ra2 Rg1 d6+ Kb7 d5 f1Q d7 Rh5 d6 Rg5 Qe8 Qb5 Nd5 Nd3 Bb2 c1R Be5 Rc3 Bg3 Nc1+ Kf2 Bg6 Qee1 Rc6 Nf6 Qe5 Nd5 Nh6 g8N Bg7 Ngf6 Ng8 Ne4 Qde7 d8R Bd7 Re8 Qd8 Nef6 Bdf5 d7 Be4 Re7 Bh8 Qed1 Re1 Rh7 Re3 Rg1 h1R Q1e1 h2 Rh3 Re2+ Kf1 Rb8 a8R Bg7 R8a3 Ra8 Re3 Kb8 Rd3 Qc8 d8Q Raa6 Qa5 Qd8 Rh7 Re3 Kf2 Bh8 Rf1 Rg1 Rh3 h1Q Nh2 Rc5 Nb6 Ba8 Nbd5 Bg7 Qee2 Rc8 Rd1 Rcc6 Qee1 Ne2 Rb1 Nc1 Rbb3 Bh8 Rh7 Re4 Rg7 Re2+ Kf3 Rab6 Nh5 Rd6 Rb7+ Kc8 Re3 Qe6 Rbd3 Qe5 Bf4 Qb2 Rh7 Bd4 Nf6 Rdc6 Ree7 Qa1 Reg7 Ra6 Rh3 Qc3 Bg3 Qc5 Nc7 Qe5 Ncd5 Kb8 Rc3 Re4 Rd3 Bc3 Kf2 Re2+
2Rb1rrK/nQ2B2b/2RqQ1q1/N1NN4/pn3n2/1B4Qn/r6R/1k1bNn2 w - - 0 1 illegal: No possible last move, all moves rejected
nNB1Qq2/Bq1r2RQ/n5B1/1n1BR1p1/3bn3/1nR2N1b/2r2r2/1k1NK1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 Ke7 c4 Kf6 e4 Ke5 b4 a5 c5 f5 h5 g5 c6 d5 b6 f3 c7 g3 b5 f2+ Ke2 g2 h6 d3+ Kd2 Kd4 b7 f4 b6 a4 h7 f3 e5 a3 e6 a2 e7 Nf6 e8B Na6 b8N Bg7 b7 Nd7 Qb3 Nb6 Bg6 Rf8 h8Q Qd7 Nh3 g1Q Kd1 d2 Kc2 d1R Bg2 f1N Nf4 f2 Bf5 Ng3 Nc3 f1Q Bg6 Ne4 Nh3 Rf2+ Bd2 Ra7 Qe8 Na8 Rc1 Be5 Qb1 a1N+ Kb2 Nb3 Kc2 Re1 Nd1 Ree2 Rh2 Qf7 Bh1 Bf5 c8B Kc4 Rg2 d4 Rg3 Qf8 Re3 Qfg2 Rc3+ Kb4 Rc7+ Ka3 Rg7 Bg4 Kd3 Be6 Be3 Ra2 Rc3 Rac2 Nf4 Qf3 Ng2 Bh3 Ne1 Q3f7 Nf3 Qd5 Qc1+ Ka2 Qa3+ Kb1 Qae7 Bd6 Q7f7 Bc5 Qg8 Qd7 Qh7 Qde7 Nd7 Qef7 b8R Qd5 Rb6 Qb7 Re6 Bb6 Nb8 Bc5 Kc4 d3 Re5 d2 Kd3 Bb6 Nb2 d1N Bd4 Ne3 Nd1 Nc4 Bc5 Na3 Be3 Rh2 Bg2 Bd4 Bf2 Ned2 Ke2 Nb5 Bh1 Qg3 Bg2 Ne4+ Ke1 Qg4 Bh1 Rg2 Bg1 Rgf2 Ree7 Ng3 Nh2 Qc7 Qh8 Rf3 Rh7 Bc5 Rhg7 Qc6 Qh4 Rd7 Qh7 Qb7 Re5 Rff7 Bd4 Rf2 Bd5 Ne4 Nf3 Ba7 Bb6 Qg3 Bc7 Bc5 Bb6 Bd4 Ba7 Qg1+
q3RrN1/2nn2b1/brn1B3/b2QpN1r/B3Q3/Qn2q1B1/1B2k3/1RRn2K1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 Kf2 Ke6 b4 Kf5 c4 a5 g3 e5 b6 d5 b7 h5 b5 d3 b6 a4 c5 h3 c6 h2 c7 d2 Bb2 e3+ Kg2 Ke4 f5 a3 f6 h4 f7 d4 g4 e2 g5 Kd3 g6 a2 g7 Ra6 Nf3 Ne7 g8R Nec6 Nc3 Nd7 b8Q Bg7 b7 Rb6 Re8 Rf8 Rb1 a1N Qa8 Nb3 b8B Ba6 c8B h3+ Kf2 Qf6 Ba7 Qg5 Ne4 Qf4 Rg1 h1Q Nf6 h2 Ng8 Qe4 Bg2 e1B+ Kf1 Qe3 Nh4 Bf2 Bh3 Be1 Be6 Qhe4 Bb7 h1R Nf5 Rh5 Qf3 d1N Kg2 Nca5 Bc6 Nc3 Ba4 Nb5 Qd5 Nc7 Rh1 Bb4 Rhc1 Nc6 Kf1 Ba5 Qg4 Q3f3+ Kg1 Ke2 Qg6 d3 Qh7 Rb5 Bf2 d2 Bg3 d1N Qg6 Nf2 Qg4 Qe3 Qge4 Rb6 Ra8 Re8 f8Q Rd8 Qa3 Rf8 Qed4 Qfe4 Re8 Nd1+ Bf2 Qg5+ Bg3 Qd8 Qdb4 Qa8 Qbd4 Qd3 Q4e4+ Qe3+
Q1rr1k2/1bR1r1b1/r1N1B3/1Qqp4/bn3qRN/BnN4K/6rB/5QQn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 f5 c4 h5 g4 a5 Kg2 d3 e4 a4 c5 f3+ Kh3 f4 c6 f2 e5 d2 e6 a3 b6 a2 b7 f3 e7 Nd7 b8B Bb7 b5 Qb6 c7 Nc5 c8N Nb3 g5 Bg7 g6 Qc5 Kh2 h3 b6 h4 Nc3 Ra6 Bg2 f1Q Na7 f2 Ba3 Rh7 Qc1 d1B Nc6 Qfc4 Bd6 f1R Nf3 Rf2 Rg1 Rb2 Rb1 a1R Bb8 Bc2 Qf1 Q4b4 Rc1 Qf4+ Kh1 h2 Bh3 Raa2 Kg2 h1N Be6 Bd1+ Kh3 Rc2 Be5 Rh8 Rg4 Rg2 Bb8 Rae2 Bc8 Re6 Rc2 Rd6 Be6 Rd8 Bc7 Nf6 Be5 Nd7 Rc1 Nb8 Bd6 Bf6 g7 Rf8 g8Q Bg7 Na7 Nc6 Bc7 Qfd4 Bh2 Nb4 Nc6 Qf4 Rc2 Be2 Rc1 Bb5 Rc2 Ba4 Rc1 Ba8 b7 Rc8 b8Q Bb7 Qh7 Rh8 Qb1 Rg8 Qa8 Rf8 Bf5 Kf7 e8Q+ Kg8 Qe7 Rfd8 Qe3 Kf8 Qeg1 Qcc4 Rg6 Ng3 Nce5 Qfe4 Nd1 Nd2 Rg5 Qcd4 Rc7 Qc5 Nc3 Na2 Qbb5 Nb3 Nc6 Nb4 Bd7 Qee3 Kg4 h3 Kh4 Qf4+ Rg4 Re2 Bf5 Re7 Be6 Rb6 Qgf2 Ra6 Bg1 h2 Kh3 h1R+ Bh2 Rg1 Nh4 Rg2 Q2g1 Nh1
1kq1r3/2bRb2b/1B1q2R1/1q1p2Q1/1nNrb2B/2B1rn2/5Q1Q/2NBRK1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 d5 e4 Kd7 g4 Kc7 b4 f5 g5 h5 c5 a5 c6 f3 g6 a4 g7 f2+ Ke2 f4 e5 h3 e6 h2 e7 h4 e8Q h3 Qd2 a3 Ra2 Nh6 g8Q Ng4 Qee3 Bf5 Bb2 Ne5 b6+ Kc8 c7 Nbc6 b5 Bh7 Qc2 Be7 Nd2 Ra7 Qg7 Re8 Qf3 Kb7 c8R Qc7 Ra1 a2 Rd8 Nb4 Rd7 Ra3 Re1 a1B Qgg4 Ka8 b7+ Kb8 Qg8 Qc8 Qc7+ Ka7 b8B+ Ka8 b6 d3+ Kd1 Rb3 Be2 f1Q Ba7 Rc3 Qfg3 f3 Qd6 f2 Bh5 Bg5 Ne2 Be7 Rg1 h1Q Qf4 h2 Nc1 Qhg2 Qdf6 h1B Qh2 Qg3 Qgf8 Qf4 Rg6 Rb3 Qg5 Ra3 Ndb3 d2 Na5 Qb5 Nc4 f1B Qf7 Bfg2 Ke2 Bf3+ Kf1 d1R Bd4 Rb3 Bf2 Qf6 Bh4 Re3 Qf8 Qfc6 Qff4 Be4 Qff2 Rdd3 Bd1 Bb2 Bb8 Qe6 Bc7 Nf3 b7+ Ka7 Bd8 Be5 b8B+ Ka8 Ba7 Qf6 Bd4 Kb8 Bb2 Rd4 Bb6 Bc7 Bc3 Qd6
3qn1kr/RK5r/1Nn1b3/1BpR2nb/1Q1q3q/b2B2n1/1n2NR2/1QB2NN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 a5 Kf3 f5 b4 Kf7 d4 h5 e4 h3 g4 c3 b6 c2 b7 a4 e5 a3 e6+ Kg7 b5 h2 d5 a2 g5 h4 g6 h3 b6 Ra7 d6 Nc6 b8N Nf6 e7 Ne8 b7 Be6 Nd7 Kg8 b8Q Rb7 g7 Ra7 Bd2 c1N Nc3 Nd3 Nce2 Nb2 Nb6 Rb7 d7 Ra7 Rc1 a1Q Rc2 Qa4 Qb1 Qd4 Bc1 Rb7 Nc3 Ra7 Bd3 Rb7 Ke2 f3+ Kd2 f4 Nce2 Ra7 Qb7 f2 Qb8 Qd5 Kc3 f1B Qb7 f3 Rd2 Nf6 e8B f2 Rc2 Ba3 Rd2 Qc8 d8R Qd6 Rd7 Qd8 Rc2 Qf4 Rd5 Qd4+ Kb3 Bg2 Qb8 f1N Bd7 Ne7 B7b5 c5 Rd2 Ne8 Qf4 Qe3 Qb4 Ng3 Rc2 Bf3 Kc3 Nd1+ Kc4 Nc6 Ra2 Ne4 Rd2 Kh7 g8N Bh5 Nh6 Rc7 Ng4 Kg8 Rc2 Ng5 Ra2 Qe5 Ne3 Rch7 Nf1 Qg7 Nc3 Qgd7 Rf2 Qg7 Nce2 Qgd7 Ba4 Nb2+ Kb5 Qg7 Ka6 Qc3 Nf3 Qd4 Rg1 h1N Bab5 h2 Rg3 Qg4 Nfg1 Qd4 Rgf3 Ng3 Rf7 h1Q Ra7 Ne7 Kb7 Qhh4 Rf3 Nc6+ Rf7 Ng7 Rf2 Ne8+
5n1R/2B5/1N1qk1Bp/nR1Rr1QQ/5n1r/nQbN2K1/3qR2r/q1N1n2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 a5 e4 f5 g4 d5 c4 h3 g5 f3 e5 d3 c5 d2 c6 f4 c7 d4 e6 d3 b6 h2 b7 a4 b5 a3 g6 a2 g7 Qd6 b6 Nd7 b8R Bb7 c8Q Ngf6 g8Q Nd5 Nh3 Bg7 Qdc2 d1N+ Ke1 f2+ Kd2 f3 Qb3 N1c3 Qc5 Nf4 Ke3 d2 Qh5 d1Q Nd2 Nb1 Bd3 f1N+ Kf2 Ne3 Bg6 Nf8 Kg3 Nc4 Nf2 Bc3 Nd3 f2 Bb2 Bd5 b7 f1Q Rd8 Ra5 b8N Kf6 e7 Nba3 Rb1 a1N e8R N1c2 Re2 Ne1 Ba1 Be4 Nd7+ Ke7 Bb2 Re5 Nb6 Bd5 Qg7+ Ke6 Qgh6 Na5 Q6g5 Bb4 Bd4 Bc3 Rb2 Re4 Bf6 Re5 Rd7 Qc1 Bd8 Qa1 Bc7 Qf2+ Kg4 Qd4 Kg3 Q4b4 Qc2 Bf3 Nb3 Qbd4 Rb1 Qe3 Rd8 Qd2 Nbc1 Bb7 Qb3+ Bd5 Rf1 h1R Rg1 Rh4 Rh1 N3c4 Rh3 Bh1 Rhh2 Qb4 Rd5 Na3 Qa4 Qd6 Rbb5 Rg8 Qb3 h6 Rhf2 Nfg2 Rf7 Nf4 Rh7 Rg7 Bb8 Rc7 Rh8 Rc4 Bc7 Rh2 Bb8 Rce4 Bc7 Nh3 Rbc5 Rh4 Rb5 Nf4
N5nB/2nb1bqk/Q1Rp4/2r1RNQ1/n1BQ2q1/1b2r3/r1NQb1B1/b3K3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 f5 b4 Kf7 c4 Kg6 g4 h5 g5 a5 c5 d3 b6 a4 e5 f3 b7 h3 c6 f2+ Kd2 h2 c7 a3 e6 f4 b5 h4 b6 d6 e7 a2 e8B+ Kh7 Qg4 h3 Bb2 f3 Bf7 Na6 b8Q Qd7 b7 Bg7 Qd4 Qg4 Qba7 Bd7 c8N Nc7 Bg2 f1R b8Q f2 Nf3 Rc1 Na3 f1B Qa6 Rc5 Nb6 Be2 Rae1 a1Q Bc4 Bf6 Rhg1 h1B Nc2 h2 Nh4 Be5 Rc1 Bg7 Ke1 d2+ Kf2 d1N+ Ke1 Bf6 Nf5 Nc3 Rf1 Ra7 Na8 Na4 Qb4 Be5 Qbd2 Bg7 Bh3 Bd5 Bg2 h1B Rf3 Bf7 Re3 Bf6 Re5 Bg7 Bh3 Bhd5 Bg2 Nf6 Bc3 Re8 Bb2 Ng8 g6+ Kh8 Bc3 Bf6 g7+ Kh7 Rd1 Qb2 Rb1 Qb7 Rb6 B5e6 Rc6 Qb2 Bb5 Bb3 Bc4 Re6 Rd5 Re4 Re5 Re3 Qe4 Rb7 Re7 Ra7 Qb5 Nh6 Qed3 Ra5 Qa6 Nb6 Be5 Ra2 Q3c3 Kg6 g8Q+ Bg7 Qd8 Kh7 Re6 Ng8 Qg5 Na4 Qcd3 Bh6 Bh8 Bg7 Qd5 Qf6 Qe5 Qg6 Qa1 Bd4 Re5 Qf6 Qac3 Qg7 Qcd3 Bc3 Qd4 Ba1
RnB2NRK/4Q2Q/1Bp5/1br5/1Rb2kBr/nrn2q2/N1r2rQ1/4bqR1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Nc6 Kf3 Kd7 Kg4 Ke6 Kh5 Ke5 b4 f5 g4 a5 e4 a4 d3 a3 b6 c3 b5 h3 b7 h2 b8Q a2 b6 f3 g5 f4 b7 f2 g6 c2 g7 f3 Ne2 Qd5 Bh3 f1R Nd4 f2 Qe2 Ra3 Qa7 Rb3 b8R Nf6+ Kh6 Bb4 g8R Ba6 Kg7 h5 Ne6 h4 Nf8 Rh5 Be3 c1R Bg4 h3 Nc3 Rc2 Rg1 h1B Bc8 Rf5 Kh8 h2 Bc5 Bg2 d4+ Kf4 e5 Qf3 e6 Ne4 e7 Bd3 e8B h1R+ Bh5 Rh4 Rb6 Nb8 d5 c6 d6 Ba5 d7 Rg5 Nb5 Be1 d8Q Bh3 Qg7 Be6 Nc3 Ba6 Qde7 Bec4 Rb4 Bab5 Bb6 Rc5 Rc1 a1N Rd1 Ra2 Qh7 Nc2 Bhg4 Rab2 Rd7 Na3 Na2 Rc2 Ra7 Nc3 Ra8 Rh2 Rg2 Rfh1 Rg1 f1Q Qf2 Rg2 Qfe2 Rh4 Qf2 Qe2 Qf1 Rf2 Qg2 Qf1
r3R1b1/pNBbq3/1nrN1b1Q/2Q1r2Q/1n2b2n/k1N1qB1K/2B2R2/4N2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Kd6 g4 Kc5 Kg2 Kb4 e4 h5 b3 d5 e5 f5 e6 f3+ Kh2 f2 b6 f4 g5 f3 c5 d3 g6 d2 g7 h3 e7 h4 e8Q d4 c6 d3 b7 Nf6 g8B Nbd7 b8N Nb6 c7 Bd7 c8N Rh5 Bd5 Re5 Ra2 Bg7 Nd6 Qe7 Qc2 d1R Qh5 d2 Bd3 f1Q Nc3 f2 Nf3 Qe2 Ne1 Qe3 Bf3 f1B Bh7 Nfd5 Nc6+ Kc5 Bf5 Nb4 Na5 Bf6 Rb2 Bc4 Nab7+ Kd4 Ra2 Bg8 Bb2 Ra1 Qc1 d1N Bc2 Rb1 Rf1 Ra1 Rf2 Rb1 Qh6 Ra1 Ra6 Raa5 Qh5 Rac5 Ra1 Rc6 Rb1 Qe4 Qch6 Ne3 Bc1 Ng2 Bf4 Qe3 Ra1 Rd5 Ra5 Rg5 Re5 Rf5 Re6 Re5 Bg3 Qg7 Re8 Qe7 Nd8 Kc5 Bf4 Na2 N8b7+ Kb4 Bg3 Ka3 b4 Nd5 b5 Nb6 Bf4 Nb4 Nf7 Rec5 Bc7 Rg5 Nfd6 Re5 Kg1 h2+ Kf1 N6d5 b6 h1B Kg1 h3 Kh2 Re6 Kg3 h2 Kh3 Nh4 Nc5 Bg7 b7 Nb6 b8Q Bf6 Qc8 Re5+ Qg4 Bf5 Ncb7 Be4 Qgh5 Bg2+ Kg4 h1B Qcf5 Bh3+ Kg3 Re6 Qc5 Re5 Kh2 Bd7 Kg3 Rf5 Kh3 Re5+
Q6b/4Rq1b/Kb4BR/2NBnp1N/N3n1r1/1b1bb3/b2QQ1NB/1k3r1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 h4 Ke4 b4 a5 b6 d5+ Kb5 g5 c4 d3 h5 a4 c5 a3 h6 d2 c6 g3 e3 a2 h7 f3 b7 g2 c7 f2 Qb3 d1B Bd2 g4 Kb6 g3 b5 d4 Qc3 d3 Rh6 Qe8 Nf3 g1N Ne1 Bc2 Ng2 Nc6 b8Q Ra4 Qa8 Be6 c8Q Ne2 Qca6 Nf6 Kb7 Rc4 b6 Bc5 Qb4 Rf8 h8N Bd5 Ng6 Ne5+ Ka7 Bb3 N6f4 Qe6 Be1 d2 Nh5 Kd3 e4 Kc2 Nc3 d1B Na4 Be3 Bc3 Rd4 b7 Qe8 Rb1 a1B b8N Ba2 Bb2 Bdb3 Nd7 Qe6 Ndc5 Qf5 Nh4 g2 Kb7 g1B Bg2 Ng3 Qe2+ Bd2 Bf3 f1B Ng2 Nh1 Ka6 Be3 Ba3 Rc4 Rb2+ Kc1 Rc2+ Kb1 Qa5 Be1 Qad2 B1f2 Rc3 Rd4 Rd3 Rb4 Rd7 Bdc2 Re7 Rc4 Bb4 Bg1 Ba5 Bb2 Bc7 Qf4 Qf2 Bfd3 Qfe2 Bc3 Nd7 Bb6 Ndc5 Be3 Bd6 Nc6 e5 Ne4 e6 Bh8 Bc7 Qf5 Bh2 Ne5 Ra7 f6 e7 Qe6 e8B Qf7 Nd7 Nef2 Bd5 Rg4+ Bc4 Bh7 Ndc5 Ne4 Rc7 Bd3 Re7 Qg7 Bg6 Qf7 Rb7 f5 Re7 Rd8 Kb7 Rd4 Bd5 Rc4 Ka6 Rc1+ Bc4 Bdc2 Be6 Rf1 Bd5 Bd3+
rrN1Q2n/rN1R2BN/b2n1bB1/8/qqR5/2b2B1k/1nr2K1p/2qQ1RR1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Ke6 g4 a5 b4 d5 b6 h5 b5 f5 c5 h3 e5 d3 g5 f3 b7 a4 b6 h2 c6 d2+ Kf2 h4 g6 a3 g7 f4 c7 Kf5 e6 Kg4 e7 h3 e8R d4 Qa4 d1Q Qc2 a2 Bc4 d3 Na3 d2 Re3 Qd6 Qe4 Nc6 b8R Na7 b7 Nh6 g8B Qa4 Qe7 d1N+ Ke1 f2+ Ke2 f1R Re4 Qdb4 Bd3 Nb2 Qd8 Nb5 Nf3 Nd6 Rc4 Nhf7 Bg6 Bh6 Ng5 Kh4 Rb1 a1B Rg1 h1R Nb5 h2 Nh7+ Kh3 Be3 Ra7 Bd4 Rc1 Kf2 f3 Bg7 Bd2 Qe8 Rc2 Rbf1 Nd8 Bd5 N8f7 Qd8 Rg8 Ra8 Nh8 b8Q Ba6 Qe8 Rf8 Qb6 Rg8 Rd8 Ra8 Rd7 Rf8 Qf7 Rfb8 c8N Ra7 Qd4 Rba8 Rb1 Rb8 Qe8 Raa8 Kf1 f2 Ke2 Ra7 Rgf1 Rg1 Bf3 Rg5 Rbc1 Rf5 Rg1 Rf8 Rcf1 Rba8 Ne7 Nb7 Qd3 Nd1 Re1 Bf6 Qf7 Rfb8 Nc8 Nb2 Nbd6 Bdc3+ Ke3 f1Q Qe8 Qab5 Qe2 Q5a4 Rb1 Qd1 Kf2 Qd2 Rbe1 Qc1 Ref1 Bd2 Qe1 Qca1 Qd1 Qc1 Ne4 Nd6 Nc5 Qab5 Nb7 Qc6 Rf4 Qca4 Rc4 Bdc3+
Q2nNR2/rn1BBN2/2rn4/q3q1N1/Q4rb1/N6K/k2b2pR/bb2qQB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 e4 Kb4 c4 d5 e5 a5 b3 f5 h5 g5 h6 g3 c5 a4 e6 f3+ Kh3 a3 h7 a2 e7 g2 e8N g4+ Kh2 g3+ Kh3 f2 c6 f4+ Qg4 d3 c7 d2 b6 d1B b7 d4 Nd2 f3 Rb1 a1B Ne2 g1Q Nd6 g2 Rh2 Nf6 Nf4 d3 Nf5 Nc6 b8B Bh6 Nc4 d2 Ba7 Bc2 Nfd6 d1N Ne8 Nd7 Na3 Nc3 Ne6+ Ne4 Ng5 Nc5 Bb5 f1Q Bb6 Bf5 c8Q f2 Qa6 Qe1 Bf4 f1R Bd6 Be6 Be7 Qgd4 Rd1 Rg8 h8N Ra7 Nhf7 Bb1 Qa4+ Kc3 b4 Kb2 Qf5 Ka2 Rd3 Qh8 Rf3 Nb7 Bg1 Qa5 Rf4 Ncd8 Bd7 Qb2 b5 Ned6 b6 Rg6 Rf3 Qbe5 Rf4 Nc5 b7 Rf2 b8Q Ncb7 Rf3 Rf6 Qa8 Rc2 Nh7 Bd2 Nhg5 Rc6 Rf2 Bb3 Qd3 Rf4 Qf1 Bd1 Nh8 Rfc4 Rf8 Rf4 Nhf7 Bg4+
5bn1/QB1BR1N1/bq1BK3/1NRrn3/r2r1qNN/Qq2n3/2R2pr1/b2k4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 a5 e5 d5+ e6 h3 b6 d4 g5 f3 b5 f2 g6 h2 b7 h4 g7 h3 b6 a4 Bg2 f1Q+ Bf4 a3 Nf3 a2 Qc1 d2 Nc3 d1N Nh4 d3 Qa3 d2 Rc1 a1B Nb5 Nd7 b8R Ne5 Rb7 Ra4 Re7 Ba6 b7 Qb6 b8Q f6 c3 Kd3 c4+ Ke2 c5 Rh7 Rg1 h1Q c6 h2 c7 Qff2 Bd5 Rh5+ Rg5 Qhf3 c8B h1R Bd7 Qb3 Bb7 Rg1 Rc2 Rg2 Qa7 Ke1 Rf7 Qff3 e7 Qg3 e8N Ke2 Re7 Ke1 Nd4 Ne3+ Ke4 d1R Rf5 Ng6 Rfc5 Rd5 Bb8 Ne5 Bd6 N3g4 Kf5 Ne3+ Ke6 f5 Nb5 f4 Rf2 f3 Rfc2 Nf6 g8N f2 Nh6 Qf4 Ng7 R1d4 Ng4 Ng8 R2c4 Kd2 Rc2+ Kd1
1KNq1k2/2brn1N1/5BR1/Qrn5/2qbQ1Rq/2nBQB2/b1Qpb3/4R2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 Kf3 d5 e4 a5 c4 h5 g4 h3 b4 d3 e5 d2 c5 a4 c6 h2 c7 a3 b6 d4 e6 d3 e7 a2 b5 h4 b7 h3 b6 Bg7 g5 Be6 c8B Bd7 g6 Be5 g7 Bd4 Bb2 Bc5 Bf6 Be3 Ne2 Bf2 Na3 Na6 b8Q Nc5 b7 Ra5 Rg1 h1R Nd4 h2 Qc7 Rh7 b8Q Rb5 Qa8 Be6 Qc2 d1N Rg4 d2 Bb7 Nc3 Re1 a1B Qca5 Ba2 Nc4 Bb2 Nb6 Bg1 Kg2 f3+ Kg3 f2 Bd3 f1B Kf4 Be2 Ke5 f4 Nc8 f3 Ne6 f2 Bf3 f1Q Qe4 Kf7 e8R Ne7 Rg8 Qh3 Rg6 Qh4 Qe3 Qc4 Qe4 Qe8 Kd6 Qf8 Kc7 Be3 Qb6 Qd8+ Kb8 Bd4 Qe3 Ba3 Qb7 Bb4 Rg4 Ba5 Rg6 Bb6 Qbe4 Rh3 Rh8 Rg3 Rh4 Rg5 Rg4 Rd5 Nf8 Rd7 g8Q+ Ke8 Qh8 Kf7 Qh5 Ke8 Ne6 Kf7 Ng7 Kf8 Qhg5 Rg1 Qh5 h1Q Qh7 Qh4 Qh5 Rh1 Qhd5 Qh6 Qa8 Qh4 Qa5 Bc7+
R1Q5/1qn1RNQr/B1r5/rbB1nBqk/4Qb1B/8/p1nN3R/1K2n1bq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 Kc2 Kg6 e4 d5 e5 a4 e6 d3+ Kb2 d2 b6 g3 b5 g4 c5 g2 e7 g3 e8R d4 c6 f3 b7 d3 c7 f2 b6 a3+ Ka2 f4 Re4 f3 Bb2 Bd6 Rb4 Na6 b8B Nh6 b7 Nf7 Rg4+ Qg5 Qb3 d1Q Qc2 Bf4 Rh2 Kh5 Nh3 g1B Nd2 g2 Ba7 Ne5 b8Q Bd7 c8B Nc7 Bc5 Bb5 Bf5 Rh7 Qc8 Ra5 Rb1 Qe2 Re1 Qe4 Kb1 Qb7 Be2 f1N Bc3 Nc4 Bf6 f2 Qa4 Ne5 Qe4 Ne3 Bfe7 Qg8 Ng5 f1R Nf7 Nc2 Rg6+ Rf3 Ra6 Qg3 Ra8 Qg5 Nb3 d2 Bf6 d1N Nd2 Nb2 Bf1 Be8 Ba6 Rc3 Qb4 Qg8 Ng5 Rf7 Nb3 Bd4 Bd8 g1Q Bde7 Ng4 Ba7 Qgh1 Nd2 Kh6 h5 Nd3 Bf6 Bg1 Re7 Bb5 Qe4 Rc6 Bf2 Qg6 Bc5 Rg7 Nf7+ Kh7 h6 Nge5 Bg4 Nde1 Bh4 Qf5 Bh3 Kg6 h7 Kh5 h8Q+ Rh7 Qg7 Qg5 Bf5 a2+
rn2Nbnq/3N3r/1B1BR1B1/NR1q1b2/5Q1Q/Nnpr3r/kq6/1b1R2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 b4 Kd5 d4 f5 g5 c5 g6 h5 b6 a5 b7 a4 b5 h3 b6 h2 g7 h4 Qe1 c3 Nf3 Kc4 e4+ Kb3 d5 c4 e5 c2 d6 c3 d7 h3 e6 a3 e7 a2 e8N Rh7 Ba3 c1N Ne5 f3 Bd6 f4 Bd3 Qf6 d8B Bf5 Rf1 h1R Nd7 h2 Na3 Qf7 Qd2 Qd5 Re1 Rh3 Re3 Rd1 Re1 h1R Re6 Rh7 Qe1 R1h3 Kg1 Kb2 Bc2 Rd3 Qh4 Nb3 Rd1 a1Q B8c7 Ka2 Bd8 Nh6 g8N Qb2 Ne7 Ng8 Nc6 f2+ Kf1 Qd4 Na5 Qh8 Kg2 f1B+ Kg1 f3 B8c7 Nc6 b8Q Be2 b7 f2+ Kg2 Bh5 Bb6 Bhg6 Qc7 Nb8 Qcc4 Rhf3 Qcf4 f1Q+ Kh2 Qe1 Kg2 Qd2+ Kg1 Na6 b8R Rh3 Rc8 Nb8 Rc5 Rde3 Rb5 Qd5 Bd3 Ref3 Bc4 Bb1 Bd3 Bf5 Be4 Bg4 Bf5 Rd3 Bg6 Bf5
qRrBq1N1/3n2B1/nR1n2Bq/b2R4/Q1bn1N1r/Qp1Q4/br5R/4k2K w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kd6 e4 c5 a4 f5 g4 h5 Kg2 b5 g5 f3+ Kh2 h3 g6 h4 g7 c4 a5 f2 a6 b3 a7 b4 Nf3 f4 Na3 b2 Ne5 b1R Rg1 f3 Ra2 c3 Ng6 c2 Bd2 c1N Bg5 Ne2 Qd3 Nf6 g8R Nfd7 Ne7 Rb2 Nc2 Na6 Kh1 h2 Bf6 Qe8 R1g6 b3 Bg2 f1B Ne1 f2 Bf3 Bb7 Bh5 Rc8 a8Q Bh6 Rf8 Bd2 Ng2 Ba5 Nf4 Bc6 Rh6 Bb5 Rg6 Bc4 Ng8 Bh3 Qa7 f1N Bg7+ Be6 Rgf6 Ne3 Bg6 Nf5 Qa8 Kc7 d6+ Kb6 e5 Kb5 d5 Kb4 Qa7 Ned4 Qa8 Bf7 e6 Rh5 e7 Rh6 Qd1 Kc3 Qf3+ Kd2 Qd3+ Ke1 Re6+ Ne5 d7 Nd6 d8B Rh7 Rf6 Nd7 Qa7 Rh5 Qc5 Be6 Qa3 Bf5 Re6+ Ne4 Rb6 Nd6 Qf3 Bb1 Qd3 Re2 Rd2 Ba2 Rf5 Re6 Rg2 Re2 Rf2 Rb2 Rd2 N6b5 d6 Rh6 Rd5 Rh8 Kg2 h3+ Kg3 h1Q Rf5 h2 Bc7 Nf6 d7 Qf8 d8R Qa8 Rfd5 Rb8 Kg2 Nd7 Rc8 Rh3 Bd8 Rh6 Rc7 Qf7 Rcb7 Rc8 Rb8 h1Q+ Kg3 Qh4+ Kg2 Qh3+ Kg1 Qh4 Rh2 Qg5+ Kh1 Rh4 Bc7 Qh6 Bd8 Ne5 e8Q Nd6 Qc6 Qe8 Qca4 Nd7
1rq3n1/KBBq4/NqRrB2k/1QN2bN1/2Q4p/b2Q2nr/1n2N3/1bR1r3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 Kg7 e4 a5 c5 f3 c6 a4 b6 a3 c7 h3 g5 f4 g6 h4 b5 h2 b7 f2 b6 f3 e5 a2 e6 Na6 b8N Ba3 b7 Rh6 Nd7 Rb8 Bg2 f1N e7 f2 e8Q Ng3 Nc5 f1B+ Ne2 Bf5+ Be4 Qd7 Nc3 Qc8 Bf4 B1h3 Rc1 a1Q Rg1 h1R Qb5 Bf1 Rc2 Rh3 Qdb1 Bg2 Rgc1 Qa2 Ng1 Bf3 Nce2 Bh5 Nf3 Nb4+ Kd2 d3 Kc3 d2 Kd4 Nd3 Ng5 d1R Rc3 Qd8 c8Q Re1 Bc7 Nb2 Q1d3 Qa1 Qe6 Qc8 Bg2 Bhg4 Qea6 Bf3 Qbc4 B3e4 Qab5 Rh7 R3c2 Kh6 Rc3 Re7 g7 Re6 Bf3 Rd6 Bh1 Ne7 g8B Qa2 Be6 Ng8 Qd2 Bb1 Qdd3 Ra8 b8N Qa1 Nba6 Rb8 Ke5 d4 Bb7 Qa2 Qe4 d3 Qed5 d2 Qdd3 Rb6 Kd5 d1Q Qa5 Rb4 Kc6 Ra4 Kb6 Qd2 Qe3 Qdd7 Qed3 Rb4+ Ka7 Rb6 Qab5 Rd6 Qcd4 Qd5 R3c2 Qe5 Qd5 Qc3 Qd5c4 Qa5 Qcd5 Rb6 Na4 Rd6 Rc6 Nf1 Qd5c4 Ng3 Nc5 Qb6+
2BnB1n1/2BN2N1/1rqN3b/2b2b2/qQ3rp1/1b1B3Q/knq1K1R1/r1RR4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 Ke7 c4 Kd6 e4 Kc5 b3 Kb4 b6 f5 e5 a5 b7 d5 e6 g5 e7 d3 e8B g3 c5 g4 c6 g2 h5 d4 c7 d2+ Ke2 f3+ Kf2 f4 h6 d3 h7 a4 Nc3 a3 Rh3 a2 Be2 Nc6 b8N Bh6 Rh2 Qf6 Nd7 Nd8 Ne4 Qc6 Qf1 d1B Nd6 d2 Bd3 Ra7 Rb1 a1Q Ne2 Qaa4 Nd4 Ra8 Qe1 g1B+ Kf1 f2 Ne6 Ra6 Rg2 Rb6 Ng7 Kc3 b4 Bb3 Ke2 f1R b5 Bc5 Qh4 d1N Qh3 Nb2 Be3 Kb4 Rd1 Ka3 Bg1 Ka2 Bh2 Ne7 Bg3 Rf8 h8R Rf5 Rf8 Ng8 Rf7 Rg1 Re7 Rf1 Re4 Rh1 Rc4 Rg1 Rcc1 Rf8 Nf6 Bf5 Nd7 Rf6 c8B Rf7 Kd2 f3+ Bf4 f2 Ke2 Ra6 b6 f1Q+ Kd2 Rf6 b7 Rb6 b8Q Qff3 Qb7 Qfe4 Qb8 Qec4 Ke2 Rf1 Nb7 Rf7 Bc7 Rf4 Nd6 Re7+ Kd2 Re1 Qb7 Ref1 Ke2 Qc2+ Rd2 Bfe6 Rb1 Ra6 Qb4 Rb6 Re1 Bf5 Rb1 R1f3 Rh1 Rf1 Rhg1 Ra1 Rc1 Qc3 Rdd1 Qc2+
2Q1Nrn1/RbK2b2/6n1/RB2Qr1N/qr2p2b/2qQN2k/1RrBq3/1n1R4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe3 Kg4 f5 e1Q f6 h3 f7 e4+ Kc2 d3+ Kb3 a2 Na3 d4 Kc4 d2 Kb5 d1N Bd2 d3 Nc4 Be7 f8R Nc6 b8R Qd4 b7 Qc3 Kb6 Ra4 Ne2 Ne5 Re8 Bh4 Re7 Ng6 Nf4 Qe2 Nh5 Ra5 Rg1 h1R Re5 Ra4 Ra5 h2 Kc6 Rb4 Kd6 Bf5 c8Q Bd7 Kc7 Be6 Rg2 Kh3 Rba8 Bd7 Rc1 a1Q b8Q Qa4 R8a7 Rg1 Qb5 h1R Qe5 Rh2 Q3d4 Rgh1 g4 Bc6 Ne3 Bb7+ Qc4 Nh6 Ra1 Rf8 g5+ Rf5 Rb1 Ng8 Rg1+ Rg2 Rb2 Rh2 Bc1 d2 Rh1 Qcb3 Qd3 Nc3 Rg1 d1B Bd2 Nb1 Rh1 Nf4 g6 Bc2 g7 Ng6 Rg1 Qba3 Rh1 Bb3 Rg1 Bf7 Rh1 N8e7 g8N Q3b3 Ngf6 Ng8 Ne8 Qc3+ Kd6 Qg4 Be2 Rgf2 Rd1 Qf3 Qc2 Rhg2 Bb5 Qg4 Qd3 Rf1 Be1 Rc2 Bd2 Qe2 Kd7 Rf6 Kd8+ R1f5 Kd7 Ba2 Kd8 Rf8+ Kd7 Bc4 Kc7 Bf7+
4RrB1/1N1q2n1/kq1bn3/2Qr3p/b2R1B2/3R2n1/1Q2Nrbq/BN1K2Nq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 g4 a5 e4 h5 b4 d5 c4 Kd7 c5 Kc7 e5 Kb7 e6 f5 g5 h3 e7 h2 e8N d3 b6 d4 g6 a4 g7 a3 b5 f3 Qc2 a2 Nc7 f4 Be3 f2+ Kd2 f3 Qa4 Nh6 g8Q Bd6 Qa3 Nd7 Qc4 Rf8 Kd1 d2 Bf4 Nf5 Qb2 Ng7 Nd5 Ra5 Ndc3 Qh4 Bh3 f1N Nce2 f2 Be6 Ng3 Bg8 f1B Qcc3 Bg2 Qe3 Ra3 Qe7 Rf3 c6+ Kb8 c7+ Kb7 Qe5 Nc5 Qe7 Bg4 c8N+ Bd7 Qe5 Nce6 Qc5 Rf2 Be5 Kb8 b7 Qd8 Bf4 Qb6 Be5 Bdc6 Bf4 Kc7 b8B+ Kb7 Bc7 Bd7 Bd8 Be8 Bf6 Bec6 Na7 Bd7 Nc6 Be8 Nd8+ Ka7 Kc2 d1R Nb7 Rd2+ Kc1 d3 Bc3 Rc2+ Kd1 d2 Nf3 Bd7 Rf1 h1Q Nfg1 Qh2 Bf6 Rf3 Bc3 Rd3 Rf3 Rd5 Rd3 Be8 Qe3 Qc5 b6+ Ka6 Bce5 Qb5 Qc5 Qc6 Nd8 Qc7 b7 Qb6 b8R Ba4 Nb7 Qh1 Nbc3 Qh2 Rb1 a1Q Re8 Qa3 Rc1 Qab4 Rd4 Q4b5 Nb1 Qd7 Bf6 Rc3+ Rc2 Rf3 Rd3 Rf2 Bd4 Bb5 Rc4 Bc6 Bc3 Bb5 Rcd4 Bc6 Qc2 Ba4 Ba1 Qdc7 Nh3 Bb5 Qb2 Qd7 Kc2 d1Q+ Kc3 Qf1 Kc2 Qfh1 Ng1 Bc6 Kd1 Ba4+
2R1Q2b/1nQ5/6Q1/rn2p1N1/1RB2b1n/kbR1rNq1/N2R1rq1/BK4bq w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 d5 b4 Kd7 c4 Kd6 Kc2 a4 g5 h3 b6 a3 f5 e3 b5 Kc5 g6 Kb4 f6 h4 b7 a2 b6 d3+ Kb2 e2 c5 e1B g7 d2 c6 h2 c7 d4 f7 d3 Qf3 d1R Nd2 h3 Nb3 d2 Rb1 a1B+ Kc2 Bf2 Qg3 Ra5 Qg2 Nh6 g8R Be6 c8R Nd7 b8Q Nc5 b7 Re1 Qf3 d1N Rg6 Qd6 Qg3 Nc3 Bb2 Nb5 Nc1 Re3 Nf3 Bg1 Qc7 Nf5 b8Q Nb7 Bc4 Bh6 f8N Bf4 Nh7 Nh4 Nhg5 Rf8 Na2+ Ka4 Be5 Ka3 Rb4 Bd5 Kb1 e6 Bd3 Bb3 Bc4 Rf5 Rg7 Rf8 Rd7 Bc3 Bg7 Bb2 Bh6 Bh8 Bg7 Rf7 Ba1 e5 Qg4 Qg6+ Qf5 Rf8 Rd2 Qg8 Nh7 Qg3 Qg6 Bf2 Nd4 Bh6 Rc1 Bg1 Rd8 Rf2 Nf3 Bf4 Nhg5 h1Q Rc3 Qhg2 Qbc8 h2 Q8d7 h1Q Rc8 N7d6 Qde8 Nb7
1b4R1/k1rQK3/N4q2/Qqr1p3/N2n3b/1NQ1BnR1/B1r3n1/1b1RN1qr w - - 0 1 illegal: No possible last move, all moves rejected
RR1nBB1Q/5r1Q/qnBKQ1b1/1p1b1R2/3n4/2r3kb/qq3b2/BNN1r3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 h5 a4 f5+ Kd4 c5+ Kc4 Ke5 e4 b3 g4 b2 d3 f3 g5 h3 g6 h2 d6 h4 g7 h3 d7 f2 a5 f4 a6 f3 a7 Ne7 g8Q Qa5 d8R Nbc6 Qd2 Nd4 Qe1 Qa2+ Kc3 c4 Kb4 c3 Kc5 c2 Qc4 Rh7 Bh6 c1Q Bg2 f1N Ne2 f2 Qc2 Ne3 Rf1 h1B Re8 Be6 Rb8 h2 Bf3 Qd2 Nc1 Rf7 Bg7+ Kf4 e5 b5 Bc6 Bh3 e6 N3d5 Kd6 Kg3 Qe4 B1g2 Qb3 h1B Qh7 Be4 Bh8 Qa6 Qa2 Nc2 d4 Nb6 d5 Bg6 Qc4 Nd4 Ra5 Ng8+ e7 Nh6 Ra4 Bg7 e8B Qda5 Ra1 Qa2 Qe2 Bf6 Qe6 Bh4 Bg7 Bhe4 Bf8 Beg2 Re1 f1Q Re5 Qf2 Rf5 Bf3 Rb7 Rc8 a8Q Rcc7 Qd8 Rc8 Rb8 Qh2 Qdf6 Qf2 Qfh8 Qh2 Bb7 Rc3 Bbc6 Be4 Ke5 Qc2 d6 Bd5 d7 Qg2 d8B Qh2 Na3 b1R Bf6 Qhf2 Kd6 Qfb2 Nd3 Re1 Nb1 Rg7 Nc1 Nf7+ Ke7 Nd8+ Kd6 Rf7 B6g7 Qab3 Ra3 Q3a2 Bf6 Qc8 Raa8 Qca6 Qc8 Qh2 Na3 Rb3 Q8g8 Nc2 Re5 Bg5 Qgh8 Be3 Nb1 Qd2 B6g7 Bf2 Rf5 Ra3 Bc3 Nd4 Ba1 Qdb2 Qe6 Rc3
6N1/brk2BrQ/2Nq2b1/p1B3N1/1bB3QK/1Qn1n1q1/q1r4R/n2q1R1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 a5 c4 d5 e4 Kd7 h5 f3 Kg3 f4+ Kh2 d3 e5 f2 e6+ Kc7 c5 f3 Kg3 d4 e7 d2 e8B d3 h6 Nf6 c6 Rg8 h7 Nbd7 h8N Ra7 Qc2 d1N Bh5 d2 Ne2 Nc5 Nbc3 Nb3 Qh7+ Rg7 Nf7 Bf5 Ba3 Rb7 Rh2 Nd5 Nh6 Bg6 Ng8 N5e3 Ne4 Nc3 Rd1 Na1 b6+ Kc8 b5 Bb4 Rc1 d1Q c7 Q1d5 Rd1 Qa2 Re1 Be7 Bc5 Qd6+ Nf4 Kd7 Bc4 f1Q Nf2 Qh1 Rb1 Qhd1 Nh1 f2 Rc1 f1R Rb1 Bc2 Bhf7 Rf2 Rc1 Bg6 Rb1 Ra7 b7 Rc2 b8N+ Kc8 b6 Rb7 Nc6 Bf8 Rf2 Be7 Kh2 g3+ Kh3 g2 Ne6 g1Q Rh2 Bf8 Rc1 g4+ Kh4 g3 Ng5 g2 Rb1 Ra7 b7+ Kd7 b8Q Rb7 Rh3 Qgh2 Rc1 Qhe5 Rh2 g1B Rb1 Qf3 Rf1 Qdd1 Bd4 Bb4 Ba7 Qed6 Bc5 Ra7 Qb5 Rb7 Qa4 Kc8 Qb3 Q6d5 Bb5 Nc4 Be7 Ba7 Bc5 Ne3 Bc4 Qg2 Bb6 Kd7 c8Q+ Kd6 Qh3 Qe6 Bd4 Kc7 Qg4 Qd6 Bc5 Qgg3+
bq5k/6RN/1p1N1nr1/1q2K1nr/1QNQbrb1/qB2b2B/R2Q4/Bn4N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f5 Kf3 Kf7 d4 Kg7 a4 c5 e4 h5 g4 c4 a5 b6 e5 b3 d6 c3 a6 h3 d7 b2 e6 h2 a7 h4 e7 c2 e8B h3 g5 Rh5 g6 Nf6 d5 Kh8 d6 Na6 Ra2 Nc5 Bf7 Nce4 Qd2 Bh6 Na3 b1N Bb2 c1Q Ba1 Qc5 Nc4 Qa3+ Qc3 Qc7 d8N Qb8 Nb7 Be6 d7 Ng5+ Ke2 f3+ Ke3 f2 Kd4 f4 Qb4 f3 Nbd6 Bf5 Ke5 Bg4 Bg2 f1R d8Q+ Ne8 Qd7 f2 Qd2 Nf6 g7+ Kh7 g8N Kh8 Nf3 Rg1 Qd4 Rf1 Rg1 h1B Qb5 h2 Bh3 Bg2 Qb4 Bh1 Rg3 Bg2 Be6 h1B Ng1 Be4 Qbd2 Rd1 Qb4 f1Q Bd5 Rd3 Rgg2 Rg3 Bf7 Nd5 Nf6 Qe2 Nh7 Nf6 Be6 Rf3 Bg8 Rf4 Bd5 Qeb2 Qd2 Qb5 Qb4 Qc8 Qdd2 Rb8 a8Q Rb7 Qaa5 Qb8 Qd4 Rg7 Qbd2 Rg6 Qab4 Qc5 Na5 Qc6 Bb3 Qca4 Nc4 Qb5+ Qbc5 Ba8 Rg3 Bhd5 Qcb4 Be4+ Qdc5 Bf8 Bd4 Ne6+ Ng5 Rg8 Ba1 Bgf5 Nh7 Rg7 Rg6 Ng5 Qcd5 Bg4 Qdc5 Qba7 Ne8 Be7 Qcd5 Bc5 Ned6 Be3 Qdc5 Qb8 Qcd5 Qc6 Q5d4 Rg8 Rg7 Qca4 Re7 Rg6 Rg7 Qb5+
2r2b2/1np2KRn/1Bb5/rb1Q1Nb1/k6B/4Nq2/2qNBQnr/qR2QN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 d4 a5 b4 h5 e4 a4 g4 c3 e5 a3 b6 Kc6 g5 a2 d5+ Kd7 d6 Kc6 e6 h3 d7 c2 g6 h2 e7 h4 e8Q h3 b7 Bd6 g7 Bf8 b5+ Kb6 Qd5 Ka5 b6+ Ka4 Nd2 Na6 b8N Nf6 g8N Nh7 b7 Nc5 Nc6 Ra5 b8Q Bb7 Rb1 a1Q Nb4 Bc6 Qe1 Nb7 Nh6 Qe7 d8B Qc5 Bb2 c1B Be2 Qc2 Qa7 Rg8 Bd4 Bb5 Kf2 f3 Ke3 f2 Kf4 f1Q+ Ke5 f4 Ke6 f3 Bh4 f2 Bb6 Qg2 Kf7 f1N Ngf3 Ne3 Rg1 h1B Nf1 h2 N3d2 Qf3+ Nf5 Ng2 Nb3 Bg5 Nbd2 Nf4 Rg3 Bg2 Rg4 h1R Rg3 Rh2 Rg4 Qd1 Nc2 Bh1 Nce3 Qc2 Rg3 Ng2 Rg4+ Bf4 Rg7 Bg5 Qa6 Bc5 Qf2 Rc8 Qa8 Bf8 Qe5 Nc5 Qad5 Nb7 Qeg3 Qd4 Qe1 Qa1 Qgf2 Qg3 Kg6 Nf4+ Kf7 Qh3 Qd7 Bhc6 Qd8 Ng2 Qd5 Qf3
N1Q2r2/b1K4b/br2Rbr1/1n1R1N2/p2BRq1n/n1b4b/QRNk2B1/3B4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 a5 b4 f5 c4 a4 e4 g3 e5 d3 c5 d2 c6 g2 h3 f3 c7 Kf4 h4 Ke3 e6 g5 h5 f4 b6 f2 h6 f3 e7 g4 Kd6 g3 h7 Ra6 b5 Bg7 e8R+ Ne7 Ne2 g1B Qc2 g2 Qf5 Rg8 h8N Nc6 b7 Rb6 b8R Ne5+ Kc5 d5 Nec3 d4 Rh6 d3 Ng6 Nf7 Qd5 Ba6 c8B Bf6 Bb2 d1B Nh4 d2 Ra3 Bc2 Qa2 d1N Bg4 Qd2 Rg6 Nd6 Nd5+ Ke4 Rg5 Rg6 Bd4 Nb2 Nc7 Qf4 Nf5 Nbc4 Na8 Bd3 Rb3 Na3 Rb2 Bh2 Rh5 g1B Bg2 f1B Rh4 Bg3 Rbd8 Be1 Rh6 Bc3 Rh4 Nf7 Rd5 Nd6 Bh5 Bc2 Bg4 Kd3 Bh5 f2 Bd1 Nc6 Re6 Ne5 Rg4 Nf3 Rh4 Rb8 Kc6 Rb7 Rg4 Nh4 b6 Rb8 b7 Rf8 Bh1 Bh3 b8Q f1R Bg2 Rf3 Qc8 Re3 Re8 Re6 Kc7 Bf2 Nd2 Bb1 Nb3 Bg1 Na1 Be3 Nc2 Kd2 Ra5 Bg1 Be5 Ba7 Bd4 Re5 Re7 Rb5 Re6 Rb6 Rd5 Qg5 Ne7 Rg7 Ne1+ Bc2 Rge4 Qf4 R4e5 Kc1 Re2 Bh7 Nc2 Rg6 R2e4 Kd2 Nf5 Ndb5+
3B1nK1/5QNQ/1Rbb2bN/p4r1N/1rBNnq2/2Rb2br/6nb/1k2BR2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 c5 a5 h5 g3+ Kf3 d3 b5 Kd4 h6 g2 b7 d2 b6 Bd6 e5 Nf6 e6 Ne4 c6 Nd7 b8Q Nf8 h7 Qc7 e7 Bd7 Qe8 Rb8 Qc2 d1N b7 Ne3 Nh3 g1B Ba6 Ng2 Bc4 Bh2 Nd2 Bg3 Qf7 Be8 Qb1 Kc3 Nb3 d4 Rf1 d3 Nd4 d2 Ba3 Bd7 e8N d1R Ng7 g4+ Ke2 Rc1 Bc5 Be8 Bb6 Bd7 Qd3+ Kb2 Ra4 Be8 Rb4+ Ka1 Qc2 f3+ Kd3 f2 Nf4 Bd7 Nfh5 f4 Rb5 f3 Rb4 Rb1 Rb5 Re8 b8B Re5 B8a7 Qb8 c7 Rf5 c8R Bc6 Bd8 Qc7 Bc5 Qb8 Ba3 Qc7 Bc1 Rb4 Rb6 Qb8 Qe2 Qc7 Bd2+ Kb2 Be1+ Kb1 Nc2 Qb8 Kd4 Qc7 Qd3 Qb8 Rh1 f1B Rc7 Be2 Rf1 f2 Rc8 Bgf4 Qh3 g3 Qh4 Bd3 Qhe7 Be8 Qa7 Bfe5+ Kd5 Bb5 Nd4 Bc2 Rh1 f1B Qab7 Bfd3 Rf1 Nh4 Qbd7 g2 Rcc6 g1B Rc7 Rg8 h8N Bgh2 Qde7 Ng2 Rcc6 Nd7 Ke6 Beg3 Qh4 Rf8 Qh3 Rf3 Qhf5 Re3 Qh7 Qc7 Rc5 Bc6 Qf2 Bh4 Nb3 Nef6+ Qe4 Bdf4 Nd4 Rh3 Qh7 Be2 Bb3 Bg6 Nf7 Ne4 Rc3 Bh4g3 Nh6 Bd3 Bc4 Be5 Qf6 Rf7 Qe7 Rf5 Qf8 Bf6 Qe7 Qf4 Qf8 Be5 Ke7 Bc7 Qf7 Ne5 Kf8 Bd6+ Kg8 Nd7 Bf6 Nf8 Be7 Ng5 Bd8 Ne4
b2b4/r4p1r/Q2Rq1N1/N2bB1BK/7b/nn1n1k2/1Q1rRb2/BBQ2Rb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kd6 h4 Ke5 b4 Ke4 h5 d5 h6 g5 b6 a5 e3 f3 Kg3 d3 b7 a4 b5 d2 h7 d4 c5 a3 b6 d3 c6 a2 c7 f2 Rh6 Nc6 b8B Ra7 b7 Ne5 Rh1 Be6 c8R Be7 Rh2 Qd7 Rc7 Bd8 Ne2 Nf6 Rh3 Rg8 h8Q Nd5 Rc2 Nc7 Qh6 Nb5 Na3 Rg7 Nc4 Na3 Na5 Qe8 Qe1 d1B Nf4 d2 Rb2 Beb3 Qa6 Bf3 Rh6 d1R Rb6 Qd7 Ng6 Qc8 Bc4 Nd3 Re2 Qc6 Rb1 a1B Bb2 Qf6 Bf4 Bh1 b8B Bf3 Kh2 g3+ Kh3 f1N Qb4 Bh1 Kg4 g2 Kh5 g4 Bd4 Bc3 Bg5 Be1 Ba1 g1B Qbb5 Ba2 Qb2 Nd2 Bb3 Bg2 Bc2 Bh4 Bg3 Bh1 Rd6 Bf2 Rc1 Be6 Bb1 Nb3 B3f4 Bd7 Bh2 Bc6 Bhf4 Ba8 Bg3 Rd2 Rf1 Qe7 B3f4 g3 Qc1 g2 Bg3 Kf3 e4 g1B e5 Kg2 e6 Nd4 Be5 Qe8 e7 Qd7 e8Q Qe6 Bef6 Kg3 Qec6 Bd5 Qb2 Nb3 Be5+ Kf3 Qcc1 Rh7+
1N2bnQB/q4KB1/2B2np1/2Q1Rb2/qNrb4/1k4b1/R2b1RBb/2r3bQ w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Ke6 h4 Kd5 b4 Kc4 f5 a5 h5 d5 b6 e5 f6 e3 f7 g3 Kf3+ d3 h6 g2 h7 e2 b7 e1B b5 e4+ Kf4 d4 Ke5 e3 b6 g6 Rh2 e2 Ra2 d2 Bb2 d3 Nf3 g1B Nc3 a4 Bg2 a3 Nd4 Bd7 Nc6 Nf6 Nd5 Ra4 Ndb4 Bf5 Qb1 d1B c3 Be7 f8Q Kb3 c4 d2 c5 Qd7 Qa1 Rg8 h8B Bdc2 Qc8 d1Q Qc7 Bd2 Bg7 Na6 b8R e1B Re8 Nb8 b7 Bd8 Qd6 Bc7 Re7 Rc8 Re8 Na6 b8Q Be6 Qa8 Bcf5 Nb8 Bh4 c6 Nc5 Bd4 Qf7 Bc3 Bd7 Bb2 Ne6 Qb1 Ba5 c7 Nf8 Qc5 Bb6 Kd6 Bg3+ Re5 Qc2 Bc6 Qe4 Re2 B1h2 Rf2 Qec4 Qh1 Qe4 Nd5 Rc4 Nb4 Rc1 Bc3 Qec4 Bb2 Qa6 Bh8 Qa4 Bc3 Qh7 Bg7 Ba7 Ke7 Bb6 Kf7 Ba7 Rc2 a2 Bg2 a1B Ra2 Re8 c8B Re6 Bf1 Rc6 Bb7 Rc7 Bfg2 Bb6 Qca5 Rc4 Bbc6 Bd4 Qc5 B4e3 Re2 Beg1 Rf2 Qh6 Qb7 Qe3 Qc8 Bb2 Qa5 Qa7 Qc5 Ne6 Qg8 Nf8 Bd4 Ba1 Be3 Bac3 Beh6 Ba1 Bh8 Bd4 B6g7 Be8+
BQ3R2/N1NRnB2/1N1p2nq/B1k1rr2/KR2bR1q/4nQn1/8/3nnnb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 c4 f5 Kc2 h5 Kb3 a5 g4 h3 e4 f3 b6 h4 e5+ Kc6 g5 f4 c5 h2 e6 d3 e7 d2 e8B f2 b7 h3 g6 f3 g7 Qh4 Bg2 f1N Ne2 Ne3 Nbc3 Rh5 Ka4 Ne7 g8R Ng6 Bf7 Re5 Nd5 f2 Nef4 f1N Qf3 d1N Bd2 d6 Be1 Bg7 Rf8 Bf5 Nc7+ Be4 Nfd5 Bf6 Rg1 h1Q Nb6 h2 Rc1 Rf5 Rc4 Bd4 Bd2 Ne7 Bc3 Nd7 b8R Ne5 Rbd8 Qh6 Rd7 Re8 Be1 N5g6 b5+ Kb7 c6+ Ka7 Ka3 a4 Ba5 Qh4 Kb4 a3 Ka4 a2 Rb4 a1N Rh8 Nac2 Rf8 Ng3 Rf1 Ne1 Qf2 Bd5 Nc4 Qh6 Qf4 Rb8 Ne8+ Rb7 Be4 Ng4 c7 Rb8 b6+ Kb7 c8N+ Kc6 Bb1 Be3 b7 Bg1 Nc7 Nge3 Rf2 Qe4 Bd3 Qd4 Qg4 Qdf4 Qe2 Qfh4 Bc2 Bg2 Bb3 Be4 Rf4 h1N Qg2 Ngf1 Na7+ Kc5 Qf3 Re8 b8Q N7d5 Nb6 Ree5 Bc4 Nde7 Bcd5 Nhg3 Bb7 Bh2 Ba8 Bg1
1n3R1K/kn2n3/2B1R3/1nqbbB1b/1BN2bpb/3Nn2Q/2Q1Q1Q1/2r3rN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 g5 b4 a5 e4 d5 c4 Kd7 c5 Kc7 b6+ Kb7 h5 a4 e5 f3 Kg3 f2 h6 a3 e6 d3 h7 d4 b5 d2 e7 d3 e8Q a2 Na3 Qe7 Rh6 Be6 Nh3 Bd5 Qc2 d1B Bg2 d2 Re6 Bh6 Nc4 Ra6 Rb1 a1B c6+ Ka8 c7 Qc5 c8B Ne7 b7+ Ka7 Bd7 Rg8 h8Q Rc6 Ba3 Bag7 Bb4 Be5+ Nf4 Be2 Rf1 d1N Qh7 Nc3 b6+ Ka6 Be4 Nb5 Qh5 Rc7 Bc6 Rcc8 Qh2 Rg6 Qg2 Rc7 Kh2 g3+ Kh3 Bh5 Ne2 f4 Bf5 f3 Qh8 g4+ Kh4 Bhf4 Qe8 Rf6 Qh3 g2 Ng3 g1B Nh1 Bgh2 Qg2 Bfg3+ Kg5 Rf7 Kh6 Bh4 Qh8 Rf8 Kh7 Bhf4 Qh3 Rf6 Qe8 Rc8 Kh8 Rc7 Rd1 f1N Qhg2 Ng3 Rf1 f2 Qh3 Nd7 b8Q Ne4 b7 Ned6 Qbd8 Rc8 b8N+ Ka7 Na6 Nb7 Qa5 Nb8 Qaa2 Qe3 Nc5+ Qa3 Ra1 f1N Nd3 Ne3 Rf1 Qa5 Qab2 Qb6 Qcg2 Qc5 Qbc2 Bfg3 Bh7 Nd1 Nd6 Qe3 Qc1 Nf5 Bd7 Bd4 Qf8 Bde5 Qc4 Rc5 Bc6 Ne7 Qc1 Rc3 Nc4 Qc5 Qcd2 Rc1 Qc2 Ne3 Qh6 Nd1 Qhd2 Ne3 Qde2 Bh2 Rf5 B2g3 Rg5 Rg1 Rg8 Bh2 Rf8 Rff1+ Ref6 Bhf4 Bf5 Bc7 Rg6 Rc1 Re6 Bce5+
bQ1R3n/bN2QR2/n2Kbb2/1q2B1rb/2kpr1r1/2N2B1r/2r5/2QQR2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 b4+ Kc4 e4+ d3 g4 d5 c3 a5 g5 h5 b6 h3 g6 h2 b5 a4 b7 a3 g7 a2 b6 h4 Qd2 f3 Bb2 f2 Nf3 f4 Qc1 h3 Ng5 f3 Qe1 Rh4 Ne6 Qd7 Bg2 f1R Qd1 f2 Nd8 d2 Bf3 Na6 b8Q Rg1 b7 Rgg4 Rf1 Ne7 g8B Qb5 Kd6 h1B e5 h2 e6 Ng6+ e7 Nh8 Re1 Bg7 e8Q f1R Qe7 Rfg1 Bh7 Bh6 Bhe4 Be6 Rf1 Be3 Qc8+ Nc7 b8Q Ba7 Nb7 Bg2 Rf2 h1R Rf1 R1h3 Rf2 Bf1 Bh1 Bg2 Rf7 Rg5 Bf3 Re4 Nc5 Na6 Nb7+ Kd3 c4 Rgg4 c5 Kc4 c6 Rg5 Qe1 d1B Nc3 Be2 Rb1 a1B c7 Rgg4 Qd2 Rc1 Qcd7 Rc2 Re1 Bd1 Qc1 Be2 Na2 Bd1 Bg7 Bf6 Nc3 d4 c8R+ Kb3 Rd8 Kc4 Bh6 Be2 Bf4 Rg5 Be5 Reg4 Bc6 Re4 Qde8 Bh5 Qd1 Reg4 Qbc7 Rc8 Qb8 Rc7 Bf3 Re4 Qg8 Rgg4 Qg5 Rc5 Bh2 Rce5 Qgc1 Reg5 Be5 Rb2 Nc5 Ref4 Ba8 Rc2 Bb7 Be4 Bc6 Bh7 Bcg2 Be4 Bf3 Ba8 Nb7 Re4
1r3B2/Bb1R1Bbb/1N1b3Q/1N1b3R/pk2nN2/1Nr1KRr1/4n2Q/1r1qr3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kd6 h4 a5 e4 f5 c4 g5 h5 f3 b6 f2 b5 Kc5 h6 d5 e5 a4 e6 d3 h7 g3 b7 g2 e7 g4 e8N d4 b6 g3 Qg4 f4 Qg6 f3 Bb2 Bg7 Qe4 Nf6 Ra3 Nc6 b8B Bb7 Bc1 Kb4 Nh3 g1R c5 g2 Ba7 Rc8 Nf4 Rc7 Be2 f1R Qg6 f2 Rh5 Re1 Nd6 f1B Qh6 Qd7 Bb2 Rb8 h8Q Qg4 Bd1 Be2 Q8h7 Bf3 Bb3 Bd5 Nb5 Qd7 N1c3 Rb1 Ne4 Rge1 Qh8 g1B Bc1 Bh2 Ba2 Ne7 c6 Nf5 Nc5 Ng3 Nb3 Ne2 Bb2 Rcc8 c7 Rg8 c8N Qd8 Ne6 Bd6 Nf4 Rbc1 Q8h7 Rc3 Ba1 Bgf8 Qh8 Rg3 Bb2 Bg7 Q8h7 Ba8 b7 Rb1 Bc1 Qd7 Nb6 Ne4+ Kd1 d2 Qh8 Rg8 b8R Bab7 Rd8 Qg4 Rd7 Rb8 Nc7 Rce3 Kc2 d1R Nb5 Rdd3 Q8h7 Rc3+ Kd1 d3 Ke1 Ng5 Kf2 d2 Bb2 d1B Qc2 Rcd3 Bf6 Re5 Be7 Rc3 Qch7 Bc2 Bf8 Ng1 Qh8 Ree1 Q8h7 Ne2 Qh8 Nf3 Q8h7 Bd3 Ke3 Nd2+ Kf2 Ng1 Qe4+ B5c4 N3d4 Rc2 Qh1 Bh7 Qh2 Qd1 Rf3 Ne2 Ke3 Bcg8 Bd5 Ne4 Nb3 Rcc1 Bf7 Rc6 Be8 Bd5 Bf7 Rc3+
3b3B/KR2b1r1/bQ1Nb1Q1/3R2B1/BQ3n2/r4nQ1/k1r1b2p/rqR1nN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Ke6 e4 d5 b4 f5 c4 a5 c5 h5 b6 d3 b7 h3 c6 d4 g5 h2 b5 a4 e5 Kd5 g6 Kc4 b6 h4 e6 h3 c7 f3 e7 a3 e8R f4 g7 a2 Bg2 d2 Re4 Ne7 g8Q+ Nd5 Re2 d3 Qg7 Rg8 Qg3 Be7 Qg7 Be6 c8Q+ Nc6 b8Q Ra3 Qcb7 Ne5 Qg3 Rg7 Nc3 Qc8 Qc2 d1R Bd2 Rc1 Rb1 a1B Ne4+ Bc3 Be3 d2 Qd6 d1B Rd2 Qe8 Ne2 Qb5 Qa6 Bd8 b7 Be7 Rf1 h1R b8B h2 Qab6 Qb4 Qb2 Rc2 Qg6 Qb5 N2g3 Be2 Rfc1 Ba5 Nf1 Rg1 Qa7 Bad8 Qab6 Nc6 Qbe5 Ncb4 Qeg5 Rh1 Qg3 Rg1 Bd4 Rh1 Bb2 Kb3 Bf6+ Ka2 Bg5 Rg1 Qdc5 Qd3 Be5 Qb3 Nd6 Ba6 Ke1 f2+ Kd1 Nd3 Ke2 Qb2 Qcb4 Qa1 Kf3 Ne1+ Ke4 f3 Bb2 Nf4 Rd5 Be2 Kd4 Ba6 Bc3 Be2 Rb3 Qb1 Kc5 Rh1 Kc6 Rg1 Kb7 Rh1 Nd2 f1N Bb2 Ba6+ Ka7 f2 Be4 Rg1 Bd3 Rh1 Bb5 Rg1 Ba4 Be2 N2c4 Nd2 Ne3 f1B Be5 Ba6 Bef6 Bfe2 Nf1 Ndf3 Ba1 Rh7 Bh8 Rh1 Rc3 Rg7 Rc7 Rg1 Rb7 Ned3 Rd1 Qa1 Nd2 Rf1 Rb1 Rfc1 Nf1 Nde1 Rb3 Rb1 Rbd3 Qb2 Rd1 Ra1 Rc1 Qb1
1BB1B1Q1/3nRq1n/2r5/5r2/rr3QBb/kb2N1Rr/rq1K2pq/NRQ5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Kd6 b4 f5 h4 g5 h5 a5 b6 d3 b5 Kc5 e5 Kb4 h6 d5 e6 a4 b7 d2+ Ke2 d4 b6 a3 c5 f3+ Kd3 f4 c6 f2 h7 a2 c7 g3 e7 g4 e8B f3 Ne2 g2 Ng3 g1Q Ne4 g3 Rh4 g2 Ng5 Ra4 Nf7 Qh2 Rh3 Nd7 b8Q Be7 b7 Ngf6 Be2 f1R Bb2 f2 Qc2 d1R+ Nd2 Rc1 Rb1 a1R Rg3 R1a2 Bc3+ Ka3 Nb3 Rb4 Kd2 d3 Na1 Ra4 Ke3 d2 Nd6 d1R Be5 Rdd4 Bg4 Rdb4 Qc6 Rc5 Nf5 Rfc1 Qa8 f1Q b8Q Ba6 c8B Qb6 Bf4 Bd3 Bc7 Bc2 Kd2+ Qf3 Ne3 Rf5 Qc4 Bd8 Qg8 Qf4 Qc6 Qc4 Bd6 Qf7 Qbc7 Qb5 Qe4 Qe5 Qf4 Qb2 Qcc4 Nh5 Qcf1 Bh4 Bb8 Nhf6 Qh1 Rf1 Qg1 Rf3 Qe1 Rc5 Qc1 Rc6 Qgg5 Rf8 h8R Nh7 Qg7 Rg8 Qf8 Rg5 Rg8 Rf5 Rg7 Rf1 Qg8 Rh1 Qff1 Qg1 Qf4 Rh3 Qh6 Qh2 Qf4 Qe6 Re7 Qc4 Bc7 Qf7 Bb8 Bb3+
1n6/QNqR1RrR/1r1n1bk1/1b2B1Bb/5R1r/1B2Q2p/nr3r2/b1Q2NK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 f5 c4 Kf7 g4 a5 e4 h5 c5 h3 c6 f3 c7 f4 g5 d3 b6 a4 b5 a3 b7 d2 b6 h2 e5 a2 e6+ Kg6 e7 h4 e8R h3 Qb3 d1B Qe3 d4 Bc4 d3 Bb3 d2 Ne2 Ne7 Ng3 Ra7 Ne4 Nf5 Nc5 Be7 Rf1 h1R Rf8 Rh2+ Kg1 Rh4 Rf7 Bd7 c8Q Bf6 Rh7 Bb5 Qc6 Nd7 b8B Qc7 b7 Nd6 Rf7 Bde2 Rf2 d1N Nd2 Nc3 Nf1 Ra6 Bd2 Rb6 Rd1 a1B Bc1 Kh5 g6 Na2 g7 Kg6 Rd4 Bd1 Rfd2 Re2 R2d3 Rb2 g8R+ Kh5 Rd8 Kg6 Rh8 Be2 Rhh7 f2+ Kh2 f3 Rf4 Qd8 Bc7 Qe7 b8Q Qe5 Qba8 Nb8 Qa7 Qc3 Nd2 f1R Nb7 Rg1 Nf1 f2 Bd2 Qa5 Qc1 Bh5 Rd5 Ne8 Rdd7 Nd6 Bc3 Rgg4 Be5 Qc3 Bd8 Qc7 Nd2 f1R Be7 Bg7 Bg5 Rf2+ Kh1 Bh8 Nf1 Bf6 Rf5 Ra4 Rf4 Rb4 Kg1 Re4 Bd4 Re8 Bc3 Rg8 Be5 Rg7
R1KB2Qr/r3n2Q/1qB2R2/2n3Bb/2BNNn1p/1R2Qnr1/1n1b4/k2q2n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 a2 c5 h2 c6 f2 c7 f3 Qa5 d2 Qa6 d1N Qa5 d3 Qe1 d2 Nc3 Nb2 Nge2 d1Q Bg5 Nd7+ Ke6 Ra3 b8B Ne7 g8Q Bh6 e5 Bb7 Rb1 a1R Ne4 Ka2 c8R Re3 Rg1 h1N Bc7 Ng3 Nd4 Ne2 Qh7 Nf4+ Kd6 Bd5 b7 Bf7 b8Q Bh5 e6 Rd3 Be2 f1N Qf2 Ng3 Rf1 Ra3 Qe3 f2 Bc4+ Rb3 Bb6 Nge2 Ba5 Ng1 Bc7 Qf8 Bd8 Nc5 Kc7 Qe8 Qa8+ Qa4 Qd5 Qb5 Ra8+ Qa6 Re1 f1N Re2 Nd7 Rf2 Nh2 Rf3 Nc5 Rf1 Nf5 e7 Nhf3 e8B Ne7 Ba4 Qf6 Qdg8 Qg6 Rc1 Qf6 Rc3 Kb1 Bab5 Ra7+ Kb8 Rba3 Bc6 Ka1 Rb3 Qg6 Ne2 Bg7 Rf2 Bc3 Nd4 Bd2 Rf1 Nf5 Kc8 Qh6 Bb7 Qb6 Bc6 Ne1 Qf3 Nfh3 Rb5 Re3 Qe2 Rg3 Rf4 Nef3 Rb3 Nh6 Rf5 Nf4 Rf6 Nf5 Qe3 Ne7+
1BQr1rRb/3N2B1/1rbN2BN/qQ2n1Q1/3bpR1n/1r1r3k/8/2r1BqK1 w - - 0 1 illegal: No possible last move
1R2Qrq1/B2B1Q2/Q3q3/r1b1Q1rq/b1p1R2R/1Nn1nr1B/K1N5/2r2rk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 Kd4 g6 f5 e5 c5 e6 h5 b6 a5 g7 f3 e7 c3 e8Q c2 d3 f4 Kd2 c4 b7 h3 b5 h2 b6 f2 Nc3 f3 Qde2 a4 Qc6 h4 Qh6 a3 Na4 a2 Rb1 a1Q Qe7 h3 Qf7 Na6 b8Q Nc5 b7 Nf6 g8B Ng4 Qa6 Bd7 Bh7 Qb6 Bf5 Qe6 Ba3 Bd6 Kc1 Ke3 d4 Ne4 d5 Nc3 Ne2 Rf8 Nc5 Ba4 Nb3 Bc5 d6 Ra7 d7 Ra8 Qb6 Ra5 d8Q Qa2 Qa6 Qa1 Rg1 h1Q Qde8 h2 Bh3 Qa2 Re1 f1R Bb4 Kf2 Qe5 Ne3 Ned4 Kg1 b8R f2 Ba3 Qg2 Bb2 h1R Ba1 Qec6 Bd7 Qe6 Bb2 Qg8 Ba1 Ned1 Re4 Rh2 Bb2 Rg2 Ba3 Rg5 Bb4 Bd6 Bc5 Qa1 Bb6 Bc5 Ba7 Qa3+ Rb2 Qb4 Ra2 Ne3+ Kb2 c1R Nc2 Qb7 Rh4 Qf3 Ra1 Qh5 Rb1 Rcd1 Ka1 Rd3 Re1 Rd1+ Kb2 Rd3 Re2 Rc1 Re1+ f1R Re2 Ng2 Re1 Rf3 Ree4 Nb1 Ka1 Ne3 Ka2 Nc3+
2B1N1Kr/2B1rr2/3qRQ2/4b3/pknRr3/n3n1R1/3b1QbN/r1QbN1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 a5 h4 f5 b4 g5 e4 d3 c3 d2 b6 a4 h5 f3 b5 g3 h6 f2 h7 g4 b7 g2 b6 g3 Ra3 f4 Qc2 d1B Rh4 f3 Nd2 Nc6 b8N Nf6 b7 Na7 Nc6 Ng4 b8R Bb7 Ne5 Bh6 Nd3 Nb5 Ne1 Ra7 e5+ Kc6 Bd3 f1R e6 f2 Ndf3 Bd2 e7 d6 Rb3 Na3+ Kd4 d5 e8N Qc7 c4 Ne5 c5 Qd6 Ba6 Nec4 Nh2 Ba8 Qf5 Re7 Bc8 Bb7 Re3 Kb5 Re6 Kb4 Ra8 Bc6 Ra7 Ba8 c6 Bb7 c7 Ba8 Nh3 g1R Qf4 Rh1 Ng1 g2 Rg4 Bb7 Rg3 Bc6 Nhf3 Rh4 Nh2 Rg8 h8Q Rgg4 Qg7 Rh8 Qf6 Bb7 Kd3 d4 Ra5 Ba8 Rd5 Rgh4 Ke4 d3 Kf5 Bc6 Q4g5 Re4 Kg6 Ba8 Rd4 Bb7 Ne2 g1B Qf7 Bd5 Kg7 Ba8 Qf6 Bd5 Nhf3 Bh2 Bb2 Rh1 Neg1 f1N Bc1 Ne3 Bb2 Rh7+ Kg8 Bb7 Qf8 Rhf7 Bc3+ Kc5 Ba5 Kb5 Rg4 Be5 Rg3 Rhh4 Bb6 Kb4 Nh2 Bf3 Q8h6 Bc1 Rd5 d2 Rd4 d1R Bd7 Ref4 c8Q Bd2 Qf5 Ra1 Qhf6 Bd1 Qc7 Bg2 Bc8 Re4 Qf2 Rh5 Qc6 Rh3 Bc7 Rh5 Qb5+ Kc3 Qb1 Rhh4 Qc2+ Kb4 Qc1 Rh8+
2Brr1Qn/1Nrrr2Q/6b1/1nBK1pBN/2R4n/b3b3/1qRR1n1B/3N3k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 a5 b4 h5 g4 d3 c4 f3 e3 a4 b6 h3 g5 h4 b7 f2 b5 a3 g6 h2 g7 a2 b6 d2 Qb3 d1N Bd3 f1N Nc3 h3 Nge2 Nf6+ Kd4 Ne8 g8N Nd2 e4 Nf2 Rb1 a1B Nh6 Qf6+ Ke3 Ke5 c5 d5 c6 Nd6 c7 Nd7 b8B Nf3 b7 Nh4 Rg1 h1R Qc2 h2 Rd1 Re1 Rb4 h1R Rc4 Rh7 Ba7 d4+ Kd2 Rhf1 Ng3 Kf4 b8B Kf3 e5 Kg2 e6 Ne5 e7 Bf5 c8R Bg6 Nh5 Kh1 Bf5 d3 e8Q Bb2 Qd8 Ba3 Bc5 Ra7 Rc6 Rc7 Bc8 Bg7 Nf5 Bh6+ Nf4 Re3 Qg8 Rfe1 Nh5 Qg7 Qb1 f6 Qc2 Nef7 Qb1 Nh8 Qc2 Nb5 Nd6 f5 Nb7 Rd7 Bh2 Nd6 Qa4 Bf4 Qa5 Rd8 Qc7 Qf6 Qcg7 Bg5 Qh6 Rc7 Qhh7 Qe5 Nd5 Re4+ Ne3 Qd4 Rc2 Ree8 Rc4 Qa1 Rc2 Qa2 Kc3 d2 Kd4 Qb2+ Kd5 Rg1 Rf1 d1R+ Bd2 Re1 Nd1 R1e7 Rc4 Bh6 Bg5 Red7 Re1 Rf1 Re3 Re1 Rd3 R1e3 Rd2 R3e7 Bf6 Be3 Bg5 Qg7 Rb6 Qa1 Rbb2 Qb1 Rbc2 Qb4 Rc1 Qb2 R1c2 Nb5+
1rQ3nK/R1R1n1p1/B5q1/1B2QQ1q/q3nB2/N2b1qrQ/kq1q4/N1b2R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 Kb4 b6 a5 b7 f5 e5 d5 c5 f3 Kg3 d3 Kf4 g3 c6 g2 h5 d4 c7 d2 e6 f2 Ke5 f4 e7 a4 e8B f3 h6 d3 h7 a3 Qc2 d1Q Bb5 a2 Bf4 d2 Ne2 g1Q Nc1 Bf5 c8Q Qg6 Nb3 Bd3 Na3 Ra4 Rc1 a1Q Qf5 Qa5 Qcc8 Nc6+ Kd5 Qa2 b8R Nce7+ Ke5 Qc2 Na1 d1Q Rb7 Qdd2 Ra7 Qcb1 Be2 f1N Rcc7 Ng3 Rf1 f2 b3 Qh5 Ke6 Ne4 Ba6 Qab2 Bb5 Ng6 Kf7 Bc5 Ba6 N6e7+ Kf8 Kc3 b4 Q1c2 b5 Kb4 b6 Be3 Nc4 Ra3 b7 Qaa4 b8Q+ Kc3 Bb5 Rb3 Na3+ Kb4 Rb1 f1Q Rd1 Qfh3 Rf1 Qc6 Ba6+ Kc3 Qbb5 Q3f3 Qbe5+ Kb4 Bb5 Qcg6 Ba6 Bc2 Bec4 Bd3 Bcb5 Rc3 N1c2+ Kb3 Na1+ Ka2 Bg3 Rc1 Rc6 Qe1 Rg1 Qh4 Qcb8 Qea5 Rg2 Rg1 Rf2 Bc1 Bf4 Rg3 Rf1 Qad2 Rc2 Qd6 Kf7 Ngf6 Rcc7 Rg8 h8Q Qg5 Qhh3 Rc8 Qb7 Rb8 Qbc8 Qgh5+ Kf8 Ng4 Ra8 Qdg6 Raa7 Nd5 Kg8 Nh6+ Kh8 Ne7 Bg5 Nhg8+ Bh6 Qhg4 Bf4 Q4h5+
2b1N3/1N3pqN/b2qQ1BQ/1Nr1bQb1/3Bb3/2n2Bk1/1R1n4/n1Kr2bR w - - 0 1 illegal: No possible last move, all moves rejected
1nb1RRb1/B1Q1pNr1/2K5/4RN2/1QnBQ3/2R2qbb/B1q2nkb/r3b3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 h5 c5 a4 c6 h3 f5 Kg5 b6 Kf4 f6 Kg3 b7 d3 Kc3 h4 Kd4 d2 Kc5 e3 g5 h2 b5 h3 f7 d4 b6 e2 g6 e1B g7 d3 c7 a3 Bb2 a2 Na3 Rh7 Nc2 Nh6 g8R+ Bg7 f8R Nf7 Nd4 Nd6 Qe2 d1B Rc1 a1B Rc3 Bb3 Re8 Nc4 Rgf8 Be5 Qe4 Rg7 Ngf3 d2 Nf5+ Kf2 Kb5 d1Q Ng5 Qf3 Nf7 Qdd1 Rg1 h1N Rg5 h2 Bh3 Nd7 b8B Qc2 b7 Bg3 Kc6 Ra2 Bg4 Kg2 Ba7 Nf2 b8Q h1B Qb4 Bh2 Bc1 Bb2 Bce3 Ra1 Bed4 Bc1 Rh5 Bcf4 Rg5 Bfg3 Rh5 Ba6 c8Q Ba2 Qc7 Bc8 N5h6 Bb3 Re5 Ba2 Be6 Nb8+ Kc5 Kg1 Kb5 Bg2 Nf5 Bh3 Kc5 Kg2 Kd5 Na6 Kc6 Bb3 Bd5 Nb8+ Kc5 Nd2 Nh8 Ba4 Ba2 Bb3 Kb6 Bg8 Nf7 Nc4+ Kc5 Nd7+ Kc6 Nb8+
5Qnk/bq1Rp1n1/5B2/1NRb1rK1/8/B1nQ2N1/B2r2nB/1nnbqNQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg7 g4 d5 b4 h5 c4 a5 g5 h3 f5 e3+ Ke2 a4 Kf3 e2 Kf4 e1N g6 d3 b6 h4 c5 h2 b7 h3 c6 d4 b5 d2 c7 d3 b6 a3 Be2 a2 Kg5 Na6 b8N Qd5 b7 Nc5 Bf3 Ra5 Nc6 Ng2 b8B Be6 c8Q Na4 Qe8 Nc3 Na7 Qb7 Nb5 Bd5 Ba3 Rh4 f6+ Kh8 f7 Rd4 Bg4 Bg7 f8B Be5 Qf1 d1N Ne2 d2 Be6 Bg3 Qef7 Bf2 Ng3 Rd3 Bh6 Ba7 Qf8 Rd4 Rg1 h1Q Qd3 h2 Re1 Qg1 Re5 h1N Bf7 Qe1 Bc7 Bc6 Rc5 Bd5 Bf4 Na4 Bb8 Ndc3 Bf4 d1B Nd2 Nb1 Ndf1 Nac3 Bb8 Nd2 Rc1 a1N Be6 B1f3 Rd1 Nab3 Bf4 Nc1 Bc7 Bde4 Ba2 Ndb1 Rd2 Bd1 g7+ Kh7 Be5 Rd7 Bf6 Rd8 Qe3 Bef3 Rd7 Bd5 Nf5 Ng3 Qd3 Nh5 N5g3+ Ne4+ Kf5 Nec3 Bf4 Ra4 Kg5+ Re4 Nf5 Re2 Bh2 Rd2 Qd4 Rc8 N5g3 Rc6 Qc4 Ra6 Qd4 Ra5 Qd3+ Be4 Re5 Bb8 Nd4 Ngf4 Nge2 Ba7 Kg4 Rc5 Nb5 Rd5 Re6 Rf5 Rc6 Bd5 Rcc7 Qf2 Rc5 Qe3 Qe8 Nh6+ Kh4 Qe5 Qg6+ Kg8 Qg1 Qe4 Neg3 Qe1 Bb4 Kh7 Ba3 Ng2+ Kh3 Kg6 g8Q+ Ng7 Qe8+ Kh7 Qf8 Nf4+ Kh4 Ng8 Be5 Kh8 Bd4 Rf7 Kg5 Ng2 Be5 Rf4 Bf6 Rf5+
nKBQr1bQ/1nprN1bR/6Q1/1bnB1qR1/1R3nrn/1b6/Q2B4/3N2k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 h5 g4 a5 b3 h3 g5 c3 b6 h2 g6 f3 b7 c2 g7 f2 d3 h4 Bb2 c1N Qd2 a4 Ne2 f4 Ra3 f3 Ng3 h3 Qf4 Nf6 g8Q Be6 Rg1 h1B Qh6 h2 Bg2 f1R Bc3 f2 Nf5 Rh7 Ne7 Ne8 Qhg6 Nd6 Bd2 Ne2 Nc3 Qc8 Nd1 Nf4 Ra2 a3 b4+ Kb5 d4 Kc4 b5 Kd3 b6 Ke2 d5 Nd7+ Kd4 Bg7+ e5 Qf8 b8Q Qf5 b7 Nb6 Rc2 a2 Kc5 a1N Kc6 Nb3 Q8f7 Ra4 Qh8 Re1 b8R Na8 Rb4 Nb7 d6 f1B d7 N3c5 d8Q Bb3 Bd5 Bf3 e6 h1N Rg5 Ng3 Rcc4 Be4 Rc1 Kf3 Rc3+ Kg2 Rf3 Kh1 Rf2 Kg1 Rh2 Bed3 Qfg8 Bdc4 Rh6 Ncd3 Kd7 Re5 Kc8 Ndc5 Kb8 Bb5 Q8f7 Bfc4 Rh2 Rh4 Qfg8 Rg4 Rh7 Re4 Nc8 Ra6 e7 Rd6 e8B Rd7 Bef7 Re8 Bfe6 Qb1 Q8f7 Nf5 Ne7 Nh4 Qfg8 Qf5 Q8f7 Rd6 Bc8 Rd7 Qfe6 Qc2 Qa6 Qd3 Qa2 Qf5 Bg2 Be6 Bd5 Bg8
k2rK1bB/1r3RQ1/2B5/1N1R1B1Q/5Q1n/nq2n1b1/1Npn2qN/1bQ1b2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 Kc7+ Ke5 Kb7 b4 a5 d4 f5 g4 a4 e4 a3 b6 a2 b5 h3 d5 c3 d6 h4 g5 c4 d7 f3 Ke6 c2 Kf7 f4 g6 h2 g7 h3 e5 c3 e6 f2 e7 f3 e8N Ne7 g8B Rh7+ Ng7 Nf5 Bg2 f1B Na3 Ne3 Nc4 Bd6 Bb2 Bg3 Qc1 Bd3 Rb1 Qf6+ Ke8 a1N d8Q Qe6+ Qe7+ Nd7 Nf5 Kb8 b7 f2 Bf3 f1N Nd4 Ne5 Bc6 Ng6 Ngf3 Nd2 Rd1 h1N Nh2 Nh4 Bf7 Qd5 Bg6 Be6 Qg7 Bg8 Rf1 Qg2 Rf7 Qf3 Bf5 Be1 Qd1 c1B Qe2 Qd5 Qh5 Nac2 Ra1 Bg3 Ra5 Na3 Ba1 Bb1 Nb2 Nac4 Ra3 c2 Rd3 Ndf3 Rd1 Na3 Rd3 Qb3 Rd1 Ra5 Rd3 Ka7 b6+ Ka6 b8Q Nd5 Qgg5 Ng1 Nf1 h2 Qe5 Bd2 Rf8 Ngf3 Nc4 Bde1 Qc1 Nd2 Bc3 Rb5 Nb2 Rd7 Rf7 Nf2 Qeh8 h1Q Nh2 Qg2 Qe5 Ra5 Nb5 Nh1 Qf6 Rd6 Qfg5 Rd7 Bh8 Rd6 Qgh6 Rd7 Qg7 Rd6 b7 Ne3 b8Q Ra4 Qc7 Rb4 Nd4 Rb7 Nb5 Rd5 Qf4 Kb6 Nc3 Ka7 Nb5+ Ka8 Rd4 Rd7 Rd5 Rd8+
r1Q3r1/b1n2R2/7b/r3B3/r1NBq1Bk/1bRNb1rN/1pn5/Qq1KNR2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Ke7 e4 Kf6 h4 c5 d4 g5 h5 b5 h6 g3 a5 c4 h7 f3 d6 g4 a6 c3 a7 f2+ Ke2 c2 d7 g2 d5 b3 d6 g3 Ra2 b2 Nf3 g1B Nh4 g2 Ra4 b4 Nd2 Kg5 e5 b1Q e6 f5 e7 f4 e8R b3 Re7 b2 Rf7 Ne7 Ra3 Rg8 h8B Qe8 d8N Be6 d7 Bh6 Nb7 Bb3 d8N Nd5+ Be5 Nc6 Nc4 Nc7 Nc5 Nb4 Be3 c1B B3d4 Nc2 Nd3 Be3 Ne6+ Kg4 Qc1 f3+ Kd1 Kh5 Be2 f1R+ Ne1 Qc6 Nc5 Qe4 Ng6+ Kg5 Nf4 f2 Nh3+ Kh4 Bg4 Qc6 Ke2 Qe4 Ned3 Rd1 Ne1 f1R Ncd3 Rf6 Bd7 Bgf2 Rf1 g1R Bc8 Ra6 Bg4 Qa2 Qa1 Ra5 Qb1 Rg3 Qa1 Rac8 a8Q Qb1 Qa6 Ra8 Qc8 Ba2 Rc3 Bb3 Nb4 Ra4 Bc5 Rd5 Bcd4 Rda5 Nbd3 Bc1+ Kd1 Bfe3 Bg7 Bg1 Bde5 Ba7 Bh8 Bhe3 Bd4 Bh6 Bhe5 Bce3+
rn2B2R/3R1b2/N1r2nQK/r1Q1b3/3qr3/bQ1q1pBk/1r2N3/NR4Qb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 e4 Kg5 c4 h5 g4 f5 c5 d5 c6 a5 c7 d3 b6 f3 Ke3 h3 b7 Kh4 Kf4 d2 e5 h2 b5 d4 g5 d3 b6 a4 g6 f2 e6 a3 g7 a2 e7 Nf6 g8R Ra5 e8Q Qd4+ Qe4 Ba3 Rg6 Be6 c8Q Bf7 Qc5 Rd8 Qb3 d1Q Rg7 d2 Bb5 Rd6 Bd7 Rc6 Be8 Qd3 Ne2 Kh3 Kg5 f1R Qed4 f4 Kh6 f3 Qg1 h4 Bb2 Re1 Be5 Qd4 Bg3 Qc2 Rh7 d1R Nd2 Qcd3 Rb1 a1B Qbc2 Bc3 Nb3 Rd2 Na1 Ra8 Qb3 Rb2 Rg7 Bc4 Rd7 Bf7 Nc1 Re4 Ne2 Bg6 Qg8 Bf7 Qg6 Qa4 Qc4 Be5 Qcc5 Qad4 Re7 Nbd7 b8Q Ra5 b7 Ra8 Qba7 Nb8 Qa4 Ra5 Rd7 Ra8 Qf2 Ra5 Qb3 Ra8 Rhd1 h1R Rd2 Rc1 Qg1 Rc4 Rd8 Rca4 Rc8 Nbd7 b8N R4a5 Na6 Nb8 Qe1 Kg2 Qed1 h3 Rd8 h2 Qg1+ Kh3 Rd7 Bd5 Rh7 h1B Rh8 Bf7 Rdd1 Qb5 Rd2 Qdc4 Rd8 Qd4 Rd7 Qbd3
r1b2nQR/2Bb2B1/1R1b2b1/5nN1/2qnN1B1/2pbq1B1/2k1nQKN/R5r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 e4 Kd4 g5 h5 e5 f5 g6 a5 b6 c5 b7 h3 g7 f3 e6 f4 d3 h4 e7 h2 e8R h3 b5 a4 b6 c3 Re6 a3 Ra2 c2 Rg6 c4 Ra1 c3 Rg4 a2 Rg6 Nh6 g8N Qe7 Bd2 c1N Qe1 Nf5 Be2 Nd7 Nh6 Rg8 b8Q Qe3+ Kf1 f2 b7 Bd6 Ng4 Nf8 Nf3+ Kd5 d4 Ke4 Bd1 Kd3 d5 Ne2 Ng5 Bd7 Qd8 Rg7 b8B Bc8 Rg1 h1B Nh2 Be4 Rh1 Bd7 Bc1 Rg8 Nd2 Rg7 Nhf3 h2 Kg2 Bc8 Rh6 Rg6 Rh8 Rg8 Rb1 a1N Rb6 Nc2 Ba3 Ncd4 Bb4 Bc7 d6 Bc6 d7 Bd6 Qe8 Ba4 d8B Bad7 Bdc7 Rg6 Rf1 h1B+ Kh2 Rg7 Nde4 Rg8 Rg1 f1Q Qf2 Bg2 Qe6 Bh3 Rh1 Be8 Qa2 Bg6 Rg1 Rg7 Qg8 Bd7 Kh1 Bg4 Nh2 f3 Bb3 Bc8 Be6 Kc2 Ba3 Qb1 Bb4 Qb3 Ra1 Qc4 Ba3 Bf4 Be7 Bd6 Bf6 Bd7 Qg1 f2 Kg2 Be7 Bg3 Bd6 Bc7 f1B+ Kh1 Nc1 Qf2+ Bfe2 Kg2 Bc8 Qf4 Bd3 Qf2+ Nce2 Bd7 Be8 Bfe5 Bgh5 Be6 Bed7 Bf6 Bg6 Bfe5 Ne7 Bg4 Nef5 Bf6 Rh7 Bg7 Rh5 Nhf3 Rh1 Nh2 Rg1+
1n1nRb2/1R2b1N1/BBbkB1K1/2qrn1N1/2Bpn2q/4Q3/QnbQ4/4r1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d3 Kf3 Nc6 Kg4 Ke7 Kg5 d5 c4 a5 e4 h5 b4 f5 g4 h3 b6 f3 c5 d2 e5 a4 b5 h4 e6 h2 b7 a3 b8Q f2 b6 a2 b7 h3 Ba3 f4 Bc4 f1N Bb3 f3 Qf4 f2 b8Q Ng3 Nc3 f1Q Nf3 Qb5 Nh4 Nh6 Qe3 Ra5 Rb1 a1B Qa8 Nb8 Ne4 d4 Qc1 d1N Bc4 Bc3 Qcd2 Bb4 Rb3 Nb2 Nf5+ Ke8+ e7 Kd7 Rf1 h1N c6+ Kc7 Kf6 h2 g5 Nf2 g6 h1B g7 Nfg4+ Kg6 Nf7 g8B Bc5 Ng7 Nge5+ Kf6 Bd6 Bc5 Bf5 Ba7 Qb4 Bc5 Rb5 Qa2 Rh2 Rd1 Re2 Rg1 Re1 Ba7 Bg4 Bc5 Bd1 Ba7 Bc2 Bc5 Qd7 e8R Nd8 Ng5 Qh3 Bge6 Qh4 Ba7 Bd5 Bc5 Ne4+ Kf5 Ned7 Kg6 Bde7 Ba7 Kd6 c7 Ra5 c8B Bc6 B8a6 Qb6 Rb4 Rd5 Rb3 Qa5 Rb7 Qc5 Bb6 Ne5+
1r3Q1r/1n2N2n/3qRn2/1RN2Kp1/2bqQbB1/3N2n1/2B1N2Q/qq1qBk2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 h4+ Kh5 c4 a5 b4 a4 c5 d3 b6 f3 c6 g3 b7 Kg4 c7 a3 b5 a2 h5 d2 h6 f2 h7 g2 b6 Kg3 Nc3 Bd6 Qe1 d1Q Rh6 Na6 b8Q Bf4 b7 Nf6+ Kf5 Nc5 e4 Qd6 Rb1 a1Q Nf3 g1N e5 Nh3 e6 Ng5 Be2 Kg2 e7 f1Q e8B Qd4 Ne5 d5+ Bd7 Qh1 Be6 Qd6 Bg4 Qhg1 Qe3 Kf1 Rb5 Bd7 Qe8 Rb8 c8N Qh1 Qf8 Be8 Rb1 Bb5 Ne2 Bc4 Qe4 Qhg1 Rb6 Qb1 Rb4 Qda1 Bd2 d4 Bd5 d3 Be1 d2 Rb5 d1Q Ne7 Qgd4 Be6 Rc8 b8N Nb7 Na6 Rb8 Nc8 Rg8 h8Q Ngh7 Nd3 g5 Qhg7 Rh8 Nac5 Nh5 Qge5 f6 Kg6 f5 Ne7 N5f6 Bf7 Bg3 Be8 f4 Kf5 f3 Bg6 Bh2 Qg3 f2 Qh4 Bg3 Qh2 Bf4 Be8 Ng8 Re6 Ngf6 Bg6 Qb4 Be8 Qbb3 Rb4 Qbb1 Qe5 Ba6 Ba4 Bc4 Qhh6 Kg2 Bc2 f1N Rb5 Nd2 Qh5 Kf1 Qh2 Nde4 Qd5 Nh5 Qe5 Nef6 Qe4 Ng3+
b1b1Q1q1/B4BQN/2B3Nb/3rqBp1/2Nr1R1n/rr2Rb2/3Kb1k1/R6n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 h5 f5 h6 d5 c5 g5 h7 a4 b6 d3 c6 d2+ Ke2 g3 b7 a3 b5 d4 c7 d3+ Kf3 g2 b6 a2 Qe2 d1R Rh4 d2 Qf2 Bh6 Ke2 f3+ Ke3 Nc6 b8Q Nd4 b7 f4+ Kd3 Nf5+ Kc3 Nf6 Bb5 Ng4 Ne2 g1R Bc6 Rg3 Qfa7 Nf2 Na3 Qg8 Nd4 Nh1 Ne6 f2+ Kc2 f1B Nf8 f3 Rf4 f2 Nc4+ Kf6 Ba3 Rb3 Bc5 Bg2 Be3 f1B e5+ Kf7 e6+ Kf6 e7 Bf3 Rg4 Nh4 e8B Kf5 Bf7 B1g2 Qd4 Raa3 Qg7 Be2 Bf2 Bgf3 Rg3 Kf4 Ba7 Bd5 Rg4+ Kf3 Rf4+ Kg2 Qa8 Bdf3 b8R Bd5 Rb5 Bdf3 Re5 Bf1 Rc1 a1Q Re3 Qe5 Ra1 Be2 Bce8 Bfb7 Bc6+ Bf3 Qb8 Ba8 Qb5 Rf1 Qa4 d1B+ Kd2 Bc2 Qb5 Bd3 Qb8 Ba6 c8B B6b7 Bf5 Bc8 Qc7 Rfb1 Qd8 Rb5 Qe7 R1b3 Qe8 Rd5 B7g6 Qge6 Bf7 Rg8 h8N Qg6 Nh7 Rf8 Qd7 Rd8 Qe8 Qge6 B7g6 Qg8 Bf7 R8d7 Ng6 Rd4 B5e6 R7d5 Bf5 Bde2+
5n2/4b1B1/1KN2rr1/NprB3b/1qRr1b1B/1RnkN3/rb3R1R/2q1Q2Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 d4+ Kc4 h5 c5 h6 g5 d6 f5 a5 b5 a6 b3 d5 f3 Ke3 b2 h7 g3 d7 f4+ Ke4 f2 d6 g2 a7 f3 Ra3 g4 Rh2 g3 Nc3 b1R Nd5 Rb4 Bb2 Qa5 d8N Bg4 d7 Ne7 Bg7 Bh5 Nc6 Ra4 d8R Nd7 Qe1 Qb4 Rb3 Rg8 Bf6 Rg5 h8B Bg7 Ke3 Nf8 Rc8 Rg6 Bg5 Bb2 Bh4 Ra2 Rc7 Rc8 a8Q Rg4 Bg7 Rd4 Nh3 g1Q Bg2 f1R+ Nf2 Qh1 Nd3 f2 Bf3 g2 Nc1 Rg1 Be4 f1R Qb7 Neg6 Rf7 Ne7 Rf2 Rd2 Bf3 Rd1 Ke4 Rd4+ Ke5 Rc7 Kd6 Rc8 e4 Rc7 Ra3 Rc8 Nb3 Kd3 e5 Rc7 e6 c4+ Ke5 c3 Ne3 Nd5 e7 c2 e8R c1B Nba5+ Nc3 Rb3 Bd2 Bd5 Rc8 Nb8 Rc5 Kd6 Bdc1 Nbc6 Bd2 Rf7 Rf6+ Kc7 Bdc1 Kb6 Bd2 Nf5 Bf4 Ree7 Rf1 Re6 g1B Re4 Rg6 Ne3 Bf2 Rf5 B2g3 Rf6 Bg5 Rff2 Be7 Qd7 Bf4 Qh3 Qf3 Qg2 Qd1 Qh1 Qc1 Bg8 Rd8 Rc4 Rd4 Bd5 Bfg5 Rc2 Rff6 Rcf2 Bf4
2QqBn2/6kb/3NKnr1/pn1r3B/4NbnQ/RQ1RNq2/6nq/2Bq1Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 Kf7 Kc4 h5 Kd5 a5 e4 Ra6 c4 f3 g4 h3 b4 d3 c5 h2 g5 f4 c6 h4 c7 h3 e5 f2 b6 f3 b7 d2 b5 Bh6 Qe1 d1N Be2 f1N Na3 f2 Nc4 d6 b6 Bf5 Nf3 Rh7 Bf4 Nd7 c8N Bb1 Rg1 h1N b8Q h2 b7 Rg7 Qb4 Bh7 g6+ Kf8 Nfd2 Nc3+ Ke6 Rc6 Kf5 Rc5 Ke6 d5 Bh5 d4 Ra3 d3 N8d6 Ngf6 Qc8 Rd5 b8Q Ne3 Rd1 f1Q Q8b5 Nf2 Qb3 h1Q N2e4 Ng2 Bc1 d2 Ne3 Qh2 Qe2 Rf7 g7+ Kg8 Qd3 Bf4 Qda6 Qe2 Qab5 Qf3 Qd3 Bg6 Qf1 Kh7 g8Q+ Kh6 Re1 Nb5 Rd1 Bh7 Qg4 Rg7 Qh4 Rg8 Kf7 Rg4 e6 Rg6 e7 N2g4 Ke6 Kg7 e8B Bg5 Re1 Bf4 Re2 d1Q Rd2 Nc3 Rd4 Nb5 Rd3 Nf8#
n1q1n2r/Q1N3NR/b1B1B2p/3n2bN/bk6/1nbQ1KR1/3Br1Q1/q1n1N3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 g4 a5 e4 f5 c4 h3 b6 d3 g5 h2 b7 a4 b5 Kc5 e5 d5 e6 h6 g6 a3 e7 f3 e8N d2 b6 f4 g7 a2 Nc3 d4 Qe1 d1B Bh3 d3 Qf1 d2 Qd3 Ba4 Qe3+ Kb4 c5 d1Q c6 Be7 c7 Na6 b8N Bg5 b7 Nf6 g8Q Q1d4 Ng7 Ne8 Bd2 Ra7 Rc1 a1B Nb5+ Bc3 Bd7 Ra8 Ke1 f2+ Ke2 f1N Qd3 Ne3 Kf3 Nd5 Bc6 Qe5 Nd7 Ra7 Kf2 f3 b8Q Bb7 c8B Nac7 Ra1 Na8 Nf6 Ba6 Nfh5 Re7 Be6 Qc8 Qa7 Qd4+ Kg3 f2 Nc7 f1N+ Kg2 Qe5 Nf3 Qf6 Rg1 h1N Rc1 Nhg3 Ne1 Ne2 Rc2 Qe5 Kf3 Nc1 Rg3 Qd4 Bf5 Re2 Be6 Nfe3 Ra2 Nc2 Ra3 Na1 Rb3+ Ka5 Rb7 Qe5 Qgh7 Nab3 Qhg6 Bb4 Qge4 Qa1 Qg4 Bc3 Qh3 Bb4 Qg2 Bc3 Nf5 Ndb6 Nb5 Nd5 Rh7 Nef6 Nfg7 Ne8 Nc7 Kb4
2rBbb1b/3RNR2/K3rpR1/7Q/1b1r3n/k1q1B2q/Br1RQrN1/N5n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 a5 e4 g5 h4 d3 b4 a4 c3 f3 b6 f2 Kb5 g3 c4 g2 b7 a3 h5 a2 h6 g4 h7 g3 Rh3 d2 Na3 Qf6 Qf3 d1R Qe2 Nc6 b8R Nh6 Rb7 Rb8 Be3 Re1 Rd1+ Nd4+ Ka6 a1B b5 Kc5+ b6 Kb4 e5 d5 c5 Nhf5 c6 Nf3 c7 d4 e6 d3 e7 d2 e8Q Qc3 Rh6 Bd7 c8N N5h4 Nh3 g1B Nf4 g2 Rg6 Rg8 Qe5 Be8 h8R Bh2 Qg5 g1R Ne7 Rg2 Rh7 Ng1 Rd7 Bb2 b7 Ka4 Ra1 d1R Qgh5 Rd4 Nc2+ Ba3 Rc1 Bb4 Na1 Ka3 Rc2 Rc8 b8B Bg3 Nd3 Be5 Bc7 Bh8 Nf4 f6 Rd2 Rb1 Bb6 Rb2 Bd8 Rh2 Bg2 f1Q Bd5 Qh3 Rf7 Rf2 Ng2 Rg7 Ba2 Rg8 Rg3 Rg5 Rg4 Re5 Rg6 Re6+
BQ4nN/3br1q1/3qk3/r2q1Rb1/2B2b1Q/bqr5/2NRBQp1/K2n2BR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 a5 c4 g5 Kc2 d5 Kb2 f5 e4 g3 h4 f3 e5 f4 c5 g4 c6 g2 b6 d3 h5 a4 e6 d2 c7 a3+ Ka2 d4 b5 f2 h6 g3 h7 d3 b7 f3 b6 Nc6 b8R Na7 b7 Bd7 c8B Nb5 Qe1 d1Q Qe2 d2 Bb2 Ra5 Nh3 g1B Ng5 g2 Be5 Bh2 Nf7 Bf4 Bd4 B8h6 Ra8 Bhg5 b8Q Qa4 Rh5 d1Q Bb7 Qd3 Bb6 Qd6 Qc2 Qad4 Bc4 f1Q Qf2 Qfd1 Ra6 Q4d5 Ba8 Q8c7 Rh1 Kf6 e7 Ke6 e8B Qd3 Rd1 Qe3 Rd2 Nc3+ Kb3 a2 Kb2 Qb7 Na3 Qd4 Nc2 Qg7 Rh1 a1B+ Kc1 Nd1 Kb1 Bb2 Bc5 Bc8 Beb5 Bd7 Bd4 Ba3 Ka1 Qbb6 Be2 Qbb7 Bbc4 Qb3 Rb6 Qh6 Rb5 Qg7 Qg3 f2 Qh4 f1R Qf2 Ne7 Rc5 Rd8 h8Q Re8 Qhh4 Ng8 Nh8 Re7 Bb5 Qdc4 Rf5 Qcc6 Bbc4+ Qcd5 Qe1 Rf3 Qeg3 Qh7 Bg1 Rc3 Qf2 Qg7
qBBn2R1/bb1Q1n2/1B1qqN2/r7/nR4rB/3qNQ2/4r1p1/n1RQ1K1k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 Ke7 c4 Kf6 e4 Ke5 b4 a5 c5 f5 h5 g5 c6 d5 b6 f3 c7 g3 b5 f2+ Ke2 g2 b7 f4 h6 g4 h7 a4 b6 f3+ Kd3 a3 Qe1 a2 Rh4 Nc6 b8R Ra5 b7 Nh6 Qe2 Bc5 Rh2 Nf7 Nd2 Kf4 e5 Kg3 e6 Ba7 e7 Re8 Nh3 g1R Bg2 f1Q h8B f2 Ng5 Qe1 Bh3 f1Q Nc4 Qd6 Rf2 Qg2 Ne3 Kh2 Qd1 Kh1 Rf4 Ncd8 Bf6 Qf3 Rb1 a1N Nh7 Rg2 Rb4 g3 Bf5 Re2 Bh4 Rg8 e8Q Rg4 Qf8 Qg2 Ra8 Qf3 b8B Bb7 c8Q Nc6 Bb2 Rf2 Qb3 Ba6+ Rc4 Ng5 Qf6 Nf7 Ba3 Qg2 Nd1 Qee5 Bd7 Qee6 Ne3 Ra2 Bb2 Qge4+ Ke2 d3+ Ke1 d2+ Kf1 d1N Bd4 Nc3 Bc7 Na4 Bdb6 Re2 Rc1 d4 Qb7 d3 Rg8 d2 Bc8 Q4d5 Bb8 Ncd8 Qd7 Qa8 Rb4 Bb7 Qd5+ Rg2 Qf2 d1Q+ Qe1 Qb3 Nf6 Qc3 Qf5 Re2 Qd1 Qcd3 Qf3+ g2+
2BR4/1qb1NbNn/b3Rn1r/Rb6/n1Q2q1q/nQB2k2/2N2p1Q/3N1Kr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Ke5 b4 f5 b6 a5 g5 d5 b7 h5 c5 a4 b5 f3 b6 f2+ Ke2 f4 g6 d3+ Kf3 d2 Ke2 f3+ Ke3 d4+ Kd3 Kf4 g7 a3 c6 a2 c7 h3 e5 h2 e6 h4 e7 h3 e8R Qd6 Re1 Nf6 g8Q Nbd7 b8Q Rh6 b7 Nh7 Qe6 Ndf6 Be2 f1B Na3 f2 Qc4 Be6 c8N Bf7 Qda4 Ra7 Bb2 d1N Kd2 Nc3 Qab3 Na4 Nc2 Qc7 Kd1 Bd6 Bg4 Ra5 Re3 Rg5 Re6 Be5 Nd6 Rgg6 Qcb5 d3 Nf5 d2 Bc3 Ke4 Qc5 Bb5 Ne2 Ba6 Rg1 h1Q Ng7 h2 Qh8 Qf3 b8N h1Q Nc6 Qf4 Ne7 Qh4 Bh3 Qb6 Qcc4+ Kf3 Rg5 Bc7 Rd5 Qb7 Qb8 Rg4 Rd8 Bb6 Qe5 Bc7 Qd6 Qd4 Qh2 Qf4 Rb6 Rg5 Bc8 Rg3 Re6 Rgg6 Rb1 a1N Rb2 Rg4 Ra2 Bb5 Ng3 Rgg6 Nf1 Rg1 Ra3 Kg4 Ke2 d1B+ Kd3 Kf3 Nfe3 Be2+ Kd2 Nc5 Ra8 Na4 Ra5 Qf5 Nd1 Ba6 Qd4 Beb5 Qdc4 Qfg4 Nb4 Nc2 Kd3 Na3 Nc2 Rg2 Kd2 Qf4+ Kd3 Kg4 Ke2 Rg3 Kf1 Kf3 Nce3 Rg2 Nc2 Rg1+
q2k4/4n1nN/b2rBb1Q/4bRrq/RB1r4/nn2BR2/2K1Rp2/rN3Q1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 e4 d5 b4 h5 g4 f5 c4 d3 g5 a4 b6 d4 b7 h3 c5 h4 e5 h2 g6 a3 g7 h3 e6 a2 e7 f3 b5 f4 c6 f2 b6 f3 c7 Rh5 Bg2 f1N+ Ke1 d2+ Kf2 d3 Ne2 Ne3 Qe1 d1R Ng3 d2 Qf1 Nc6 b8Q Nd4 b7 Rg5 Qa7 Kd7 e8R Nec2 b8B Be7 Qb6 Ba6 c8R Na3 Ke3 f2 Rc5 Nb3 Rf5 Bf6 Bd6 Ne7 g8N Kc8 Rg1 h1Q Bb4 h2 Bh3 Qd5 Rg2 h1N Rh2 Be5 Qh6 Qf7 Ke4 Qh5 Nf6 Ra7 Nh7 Bf6 Ne2 Ng3+ Ke3 Rd7 Rf3 Re1 Be6 d1R Rh3 Rd6 Rf5 Kc7 Bcd2 Qa8 Bc1 Ne4 Rhf3 Nec5 Bcd2 Rc1 Ng3 Rd4 Nh1 R7d6 Bd5 Ne6 Bc4 Ng7 Be6 Rcc4 Ke2 Rc5+ Kd1 Ra5 Bf7 Nd5 Re2 Ne7 Be6 Kd8 Nc3 Nc4 Kc2 Ra3 Be3 Ra4 Rae1 a1B Nb1 Bb2 Rc1 Ra1 Rd1 Rdg4 Rdd5 Bbe5 Ra5 Rgd4 Ra4 Na3+
2bnN3/N2rBB2/R1BqN1r1/Qn6/1QK1b1n1/1BbR4/3qpRb1/1r3n1k w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe3 Kg4 f5 e1Q f6 h3 f7 e4+ Kc2 d3+ Kb3 a2 Na3 d4 Kc4 d2 Bg2 d1N Qd2 d3 Ne2 e3 Qa5 d2 Nb5 Rh7 Na7 Nf6 Nf4 e2 Ba3 Qd6 Bc6 Nc3 Ne6 Bg7 f8R d1N Rd8 Rh6 Rf1 h1B Rf2 h2 Bc5 Kh3 g4 Bg2 g5 h1B g6 Bh8 g7 Kh2 g8B Qed2 Bf7 Nb5 Ba3 Rg6 Bb4 Nbd7 b8N Nf8 b7 Ng4 Nd7 Bc3 Nf6 Rb8 Ne8 Nde3+ Kb3 Ra8 b8Q Nf1 Kc4 Kg1 Ba3 Be4 Qbb6 Bhg2 Qc5 Kh1 Qcb4 Rb8 Rd7 Rb7 Rd8 Bd7 c8B Rc7 Ba6 Bc8 Bb7 Rd7 Ba8 Nd4 Ba4 Nb5 Bb3 Qb2 Bc6 Qbd2 Rc1 a1R Rc2 Re7 Ra2 Rb1 Rd7 Q6f4 Rd3 Rd7 Qba4 Qg3 Be7 Qe5 Q4b4 Qd6 Nc5 Ne6 Ra4 Nd8 Ne6 Bf5 Qc7 Rc1 Ra6 Bfe4 Qca5 Rb1
N1nb1R2/1k1K3b/2N2Q2/2Rq2BB/4Nrr1/q1rB4/2RpbbN1/1q1nQ1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 e4 Kc7 g4 f5 c4 a4 b4 a3 b6+ Kb7 c5 d3 b5 a2 g5 f3 g6 d4 g7 f2 Bg2 f1R Nh3 d2 Qc2 d1Q Nf4 h3 Nd3 h4 Bd2 h2 Qc3 h3 Nf4 d3 Bf3 Be7 Ng2 f4 Bh5 f3 Bg5 f2 Nd2 Qf3 Rc1 a1B Rc2 Nd7+ Ke6 Ngf6 g8B Nd5 e5 Ne3 Bh7 Nd1 Ne4 d2 Qd4 Ra3 c6+ Kb8 b7 Rc3 Rg1 h1Q Bf5 Kc7 b8N h2 Bh7 Ba6 b6+ Kc8 c7 Be2 Na6 Kb7 c8R Rg8 Rc5 Qb8 Nc7 Bd8 Na8 Bb2 Be3 Rg4 Bg5 Qa7 Kd6 Qa3 e6 Re1 e7 f1R e8Q Qf5 Qde5 Rff4 Rf1 Qf7 Rf2 Rg1 Q8h8 Qfa2 Qhf6 Qb1 Nh4 Qf3 Ng2 h1B Qee6 Rb3 Qe8 Bd4 Rf1 Rc3 Rf2 Ka6 b7 Nb6 b8N+ Kb7 Nc6 Nc8+ Kd7 Qd3 Ng3 Qdb5 Bd3 Q5b3 Rf1 Bf2 Ne4 Qb5 Nh4 Bhf3 Ng2 Qba5 Ng3 Bd5 Ne4 Bg8 Qee6 Bh7 Qee5 Rf5 Qg3 Rff4 Qh4 Bd4 Qe1 Bf2 Qd6 Bg3 Rc4 Qd5 Rc5 Rf6 Rf4 Bf2 Rf5 Re6 Rf7 Rf6 Rf8 Qc4 Qe6 Rff4 Qf6 Qd5+
1bn1B3/Q3n2b/1n4bN/5Bq1/Kb5r/2Qrk1NQ/Rrp2nRB/4NqQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 Kd4 g6 f5 e5 c5 e6 h5 b6 a5 g7 f3 e7 c3 e8Q c2 d3 f4 Kd2 c4 b7 c3+ Ke1 h3 b5 h4 b6 a4 Nd2 f2+ Ke2 h2 Qf7 a3 Bh3 f1N Ra2 Qg5 Qc7 Nc6 b8Q Ne3 b7 Nd5 Nf1 Bf5 Ng3 Na7 Qbc8 Nge7 b8Q Bg6 g8B Nb6 Bf5 h3 Bf7 Rh4 Be8 f3+ Ke1 Bh7 Bf4 c1R Qc6 c2 Kd2 f2 Qc3+ Kd5 d4 f1Q Qbc7 Rb1 Nf3 Rb2 Rg1 h1N Rg2 h2 Ne1 Nf2 Q7b8 h1B Qc1 Nb5 Qa7 Nd6 Qd1 Rb8 Qg4 Rb7 Qh3 Rc7 Qe3 Rb7 Kc3 Rd7 Qcc7 Ndc8 Qce5+ Kc6 d5+ Kb5 Qc1 Kc5 Qh8 Rd8 d6 Kd5 d7 Bg6 Rg1 Be4 Rg2 Kc5 Ne2 Bh7 Bh2 Kd5 Ng3 Kc5 Bg4 Beg6 Bf5 Kd5 Qg8+ Ke5 Qa1 Kf4 Qb3 Rg4 Kb4 Rh4 Nd3+ Ke3+ Kb5 Qe2 Qg1 Qf1 Ka5 Nd5 Qc3 Bb4+ Kb5 Nde7 Bf7 Rf8 Be8 Rf6 d8N Rd6 Nf7 Rdd4 Ra1 a2 Nh6 Rd7 Qc4 Rd8 Ne1 Rd3 Qc3 Bd6+ Ka5 Bb8 Rd1 a1B Rb1 Rb3 Rb2 Rbb4 Ra2 Bb2 Qac7 Ba3 Qa7 Rb2 Qb7 Nc4+ Ka4 Bb4 Qa7+ N4b6+
1br4Q/2nb1r2/N2N1q2/1B2b1RR/QK3r1B/2BnQ1Np/3n2b1/1k2rQq1 w - - 0 1 illegal: No possible last move
nBRr2r1/bQ2R1B1/6bn/3N1qK1/k5B1/BN1Q1b1p/2q1Rr2/3Nnn1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 a5 c4 f5 g4 h5 e5 f3 c5 h3 g5 f2 g6 a4 b6 Kc6 g7 h4 e6 f4 e7 f3 e8R h2 b7 a3 Bc4 f1R Re3 d3 Re2 f2 Ke3 d4+ Kf4 a2 Nf3 h3 Nfd2 Bf5 Nc3 Nh6 g8N Bg6 Nb3 d2 Be6 d3 Ba3 Qa5 Rc1 a1N Kg5 Nc2 Nf6 Rg8 Nfd5 Ne1 Bg4 Nd7 b8B Nb6 Be5 Rd8 Bg7 Na8 Qc2 Bd6 Nd1 Kb5 c6 Bb8 c7 Ba7 c8Q Ka4 Qb7 Qb5 Rg1 h1B Re7 Qd7 b5 Qc8 b6 Qc5 Ne3 d1Q Rg2 d2 Qd3 Qdc2 Rh2 d1B Rg2 Bf3 Nd1 Qa2 Rc2 Qa5 Rc8 Qc2 Rh2 Rg1 Rg2 f1N Rge2 Rg2 Qb8 Rde8 b7 Rd8 Qc7 Rh2 b8B Rf2 Qb7 Qb5 Bg3 Qd7 Bb8 Qf5+
3KR3/bbrn1k2/q1r1Rr2/4B2N/q1Bp3n/Q2B1Nb1/bQN3r1/2R1N2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 f5 g4 a4 b4 h3 e4 d3 c4 d2 c5 f3 g5 f2 g6 d4 g7 f4 b6 f3 b5 h4 b7 h2 b6 a3 c6 h3 c7 a2 Bd3 f1B Na3 f2 Qa4+ Ke7 Nf3 d1Q Ne1 Kf7 Nac2 Nh6 g8N Nf5 Nf6 Ra7 Nh5 Rh6 Bf4 Rc6 Rc1 a1B Qa3 Bc5 Rg1 h1Q Rg6 h2 Re6 Bc3 Bc4 Bd7 c8B Bg2 Kd5 f1R Be5 Nh4 Bd3 Na6 b8Q Rac7 b7 Qf6 Bc4 Ba7 Bd3 Rc5+ Kd6 Bd2 Bc4 Bf4 Bd3 Be8 Bd7 Rc3 B7b5 Nc5 Ba6 Bg3 Bac4 Rd7+ Kc6 Rd6+ Kc7 Nd7 Kc8 Qg6 Kd8 Rc6 Qc7 Qh6 b8N Rf6 Qb6 Rc7 Nc6 Bf3 Na1 Qa4 Qb7 Rc2 Qbb2 Rg2 Nac2 Qg6 Na5 Qh6 Nb3 Rc6 Nd2 Qg6 Bf4 Rc7 e5 Bb7 Ndf3 Rc6 Be2 Qd3 Bb3 Qda6 Bd3 Kg8 Bbc4 Bf7 Rd6 Bd5 e6 Rc7 e7 Kf7 e8R Be6 Bb5 Ba2 Rde6 Qf1 Qbc3 h1R Qcb2 Rh3 Bd6 Qh1 Be5 Rhh2 Nb4 Rgc2 Bbc4 Rc3 Nbc2 Rg2 Bd5 R3c5 B5c4 R5c6
2R1rr1R/qR3Qnb/B2qB1bk/2Nq1Q2/p1bbq3/3B1nBn/7K/1NN5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 f5 c4 Kf7 g4 Kg7 Kg2 a5 e4 h5 g5 d3 c5 a4 b6 h3+ Kh2 d2 e5 d4 c6 h4 g6 f3 b7 f4 e6 d3 e7 f2 e8R f3 b5 Qc7+ Re5 Nh6 b6 Nf5 Ra3 Kh6 g7 Bc5 g8B Ng7 Bh7 Bd4 Bg2 f1B Qc2 f2 Rc3 Bf5 Qb2 Nd7 b8Q Bg6 b7 Rf8 Qa7 Rae8 b8N Qb6 Rd5 Ne5 Qf7 Qa7 c7 Be2 c8B f1B Qa3 Bd1 Rb3 Bc2 Nd7 Be2 Bb2 d1Q Qc5 d2 Rb7 Bc4 Bf1 Qe1 Qb5 d1Q Nc5 Qe4 Rd8 Qd5 Bg8 Bh7 Ba1 Bcg6 Ne2 Qd3 Nc1 Qa3 N5b3 Qad6 Bd3 Qe4 Be6 Qed5 Rc8 Qe4 Re1 Qed5 Nc5 Nf3+ Kh1 h2 Kg2 Bc3 Rh1 Bd4 Bc3 Qe4 Be1 Qed5 Bg3 Qe4 Rd1 h1N Qa5 Nf2 Rh1 Nh3 Rh2 Bb3 Bec4 Qed5 Ba6 Bc4 Kh1 Nf4 Qb5 h3 Qbd7 Qe4 Qff5 Qed5 Be6 Qe4 Qdf7 Qed5 Rhb2 h2 Rbb8 Qe4 R2b7 Nh3 Qd5 Rg8 Bc2 Nfg1+ Qf3 Qf5 Rd8 Re7 Bd3 Qh5 Qde4 Qhd5 Rbc8 Rh8 Rf8 Re8 Qf7 Rg8 Kg2 h1Q+ Kf1 Re7 Qef5 Qhe4 Rfd8 Nf3 Kg2 Nh5 Rf8 Re8 Kh1 Rg7 Rh8 Rgg8 Kg2 Rgf8 Kh1 Ng7 Kg2 Nfg5+ Kh2 Nf3+
3nrn2/N1b3R1/5Q2/rQR2npN/2QqQ2N/4B3/bbR1b1Kq/1B2k1nq w - - 0 1 illegal: No possible last move
bbRK1r1r/4RQnq/4pq2/1QQB2n1/8/q2q1BNn/bN1Q1Rn1/k1B5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 a5 g5 a4 c3 a3 g6 h3 g7 a2 b6 d3 Ke3 Kc4 Kf4 d5 Kg5 h2 b5 d4 f6 e3 b7 e2 f7 e1N b6 h4 Bf4 h3 Bc7 Na6 b8R Nf6 g8B Ne8 b7 Nc5 Qd2 Kb3 c4 Ng2 Be2 Be6 Nc3 Ne4+ Kg6 Bd5 c5 Ng5 Rf1 a1Q c6 Qa3 Bf3 Bg7 f8Q Be5 Rc8 e6 Nd1 Qde7 Nb2 Ka2 Rf2 Ka1 b8Q Ba2 Qb5 Rb8 Bh7 Qf6+ Kh5 Bg3 Bf4 Ra8 Be3 Bb8 Qf7 Rf8 c7 Rh8 Qc2 d2 Ne2+ d1N Ng3 d3 Bc1 d2 Bd5 Rf8 Bhe4 Rh8+ Kg4 Rf8 Rg1 h1B Bf3 h2 Rgf1 Nh3 Qcd3 Nc3 Qe2 d1Q Qd2 Ne4 Kh5 Qh4+ Kg6 Neg5 Rg1 Ng7 Kf6 Ne8+ Ke5 Qdb3 Rgf1 Qd3 Rd1 Nd6 Kf6 Qh6+ Ke7 Ne8+ Kd8 Qf6+ Qe7 Ra4 Rg1 Rh4 Rgf1 Qfc3 Qf7 Rhh8 Re1 Qcd4 Re4 Qe5 Rh4 Qf4 Rh7 Qfd4 Qff4 Qf6+ Re7 Qfg6 Bh5 Nh4 Qf7 Ng1 Be2 Qf6 Bd1 Qdc3 Bc4 Ba8 Bd5 h1Q Bg4 Qd3 Bf3 Ba7 Rb8 Ng2 c8Q Qhh7 Qcc2 N1h3 Rc8 Bb8 Qcc5 Ng7+
3B2NK/4r2b/k1p2r1r/b1q2R2/NQqN1n2/Qq1nNB2/2n2R2/1Q2qnB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 e4 a5 b4 h5 g4 c3 d4 c2 g5 a4 b6 Kc6 g6 Kb7 e5 c6 d5 a3 b5 h3 d6 a2 e6 h4 e7 h2 e8N h3 g7 Na6 d7 Qe7 d8B Nb4 Nf6 Qc5 Qe2 Ra7 Qd3 Rh6 Ne2 Ne7 g8N Ng6 Qa3 Nd3 Be3 c1Q Ng4 Q1c4 Bg2 Bd7 Re1 h1Q Nd4 h2 Re2 Qd1 Nc3 h1Q Bg1 Qdb3 Rf1 a1N Ref2 Nc2 Ne3 Bd6 Na4 Bc7 Rd2 Qh4 Re2 Qe1 Ref2 Kb8 b7 Ba5 Bh1 Be6 Kg2 f3+ Kg3 Bd5 Bg2 f4+ Kg4 Bf7 Bh1 Bd5 Kg5 Be4+ Kf6 Bf5 Kg7 Be4 Rh2 f2 Rh5 f3 Rf5 Ngf4 Bg2 Re6 Kh8 Re7 Bh1 Ra8 Bg2 Ka7 b6+ Ka6 b8Q Raa7 b7 Re6 Rf6 Bh7 Rf5 Rf6 Qd6 Rh6 b8Q Rc7 Qbb4 Re7 Qg6 Qc1 Rd1 f1R Rd2 f2 Bf3 Qe1 Bh2 Rh1 Bg1 f1N Rf2 R1h3 Qe6 Rf6 Qe4 Ne5 Qd3 Rhh6 Qd1 Ned3 Qda1 Ne6 Qb1 Nef4
rN1N1k1K/3nq3/nqp2B1n/2B2Q2/R3N1Bn/Qbr4q/Bb3r1R/5R1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 a5 e4 h5 b4 a4 g4 c3 d4 a3 b6 h3 d5 c2 e5 h4 g5 c6 b5 h2 g6 a2 e6 h3 e7 Rh5 d6 Bh6 g7 Ba6 b7 Qa5 b6 Qb4 Qd3 Bc4 Ne2 Na6 b8N Bb3 b7 Qb6 Ba3 c1R Nd4 Rc3 d7+ Kf7 Rg1 h1N d8B h2 e8R Ng3 Bc5 h1Q+ Rg2 Qh4 Ne6 Qe7 Nd2 Rh2 Be2 Nh5 Qe3 Nhf6 Ne4 Nd7 Rf1 a1Q Rg4 Qe1 Rh4 Rg2 Rh2 Bg5 Bd1 Nh6 Rh8 Bf6 g8B+ Ke8 Rh7 Be5 Rg7 Rd2 Rg4 Bf6 Bc7 Bd4 Nd8 Kf8 Be5 Rb2 Bf6 Qh4 Be2 Qh3+ Kf2 f3 Rh4 Bc2 Ba2 Bb3 Rg4 Be5 Qd3 Rd2 Ke3 f2+ Bf3 Bd4+ Kf4 Be5+ Kg5 f4 Bd1 f3 Kg6 Re2 Qd5 Bd4 Qf5 Rec2 Re1 f1N Rh4 f2 Bg4 Ne3 Rf1 Bf7+ Kh7 Bb3+ Kh8 Ng2 Rb1 f1Q Rd1 Qf4 Rf1 Rf2 Rc1 Ne1 Bf3 Qbc7 Nd6 Ng2 Be2 Qfe4 Rf1 Be3 Bd1 Qef3 Ra4 Bf7 Ne4 Bc1 Be2 Nb4 Na6 Bb2 b8Q Nh4 Qb7 Bb3 Nb8 Na6 Qb4 Qfg2 Bg4 Qh1 Qa3 Qb6
1bn1N1nr/1qq1Qb2/1p3q1r/2N2RBn/qr2KN1B/8/R1r4k/B2R1Q1B w - - 0 1 illegal: No possible last move
Nnb2Q1K/3Q1Bp1/4bRBq/2qbn3/r1N3qk/br1RN3/n1RB4/B4n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kf6 b4 Kg5 h4+ Kh5 c4 f5 e5 d5 e6 a5 b6 a4 e7 a3 e8B+ Kh6 h5 Kg5 h6 g3+ Kf3 g2 b5 a2 b7 d3 b6 d2 h7 d4 c5 d3 c6 Qc7 Nc3 Nd7 b8Q Qa7 b7 Nh6 c7 Ng4 Nd5 Ba3 Bf7 Qc5 Rh2 Ra4 Ne3 Re8 Rb1 a1Q h8R Qf6 Rb3 Qh6 Rf8 Re6 Qa8 Rb6 b8B Rbb4 Ba7 Nb8 Bb6 Be6 c8N Rb5 Bc7 Rb6 Rc3 Rb3 Nb6 Bc8 Bb2 Be6 Ba1 Ne5+ Kf2 f3 Kg3 f2 Nf3+ Kf6 Rc2 g1Q+ Bg2 f1B Rh3 Nd7 Qc8 Nb8 Na8 Be2 Qf1 d1B Ba5 d2 Qd7 Ba6 Bb4 Bde2 Bbc3 d1N Nd2 Kg5 Ndc4 Bb7 Bd2 Bef3 Bg6 Bfd5 Rf6 Nc3 Bf7 Qh1 Be4 Bc8 Qf3 Na2 Qf2 Qc1 Qf1 Ng4 Kf3 Qg6 Rg3 Kh4 Kf4 Nf2 Ke5 f4 Bd3 Qh6 Bdg6 f3 Rf4+ Bg4 Be8 Nd1 Nf5+ Kg5 Bh5 f2 Rgc3 Ne3 Rd3 Qd1 Rf3 Qh8 Rf4 Be4+ Ke6 Qf3 Kf7 Qh6 Kg8 Bh3 Bhg6 Ng4 Bh7 Bd5+ Kh8 Ne5 Bh5 Qe6 Be8 Qh1 Bhg6 Qh2 Qd1 f1N Nfe3 Qf5 Qf3 Qe4 Rf8 Qhf4 Rf7 Kh4 Rf8 Qg5 Qf6 Qf4 Qfd6 Qe4 Rf6 Bhe6 Qf8 Qeg4 Bef7 Qh6+
1Q1N1nK1/2p3B1/1rq1rbbR/R2q1R2/8/1Rb3Bq/N1Q1n3/Nrbq1B1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 f5+ Kf3 Kd5 g4 a5 b4 a4 e3 a3 b6 c3 b7 c2 g5 h3 g6 h2 g7 a2 b5 h4 b6 h3 Nd2 Be7 Bb2 c1B Nb3 Rh6 Qc2 Nc6 b8R Ra6 b7 Nf6 g8R Nh7 Rf8 Bf6 Ne2 Rb6 Rf7 Nf8 e4+ Ke6 e5 Kd5 e6 Qd7 Rb1 a1B e7 Qe6 e8Q Qe4+ Kf2 f3 Kg3 f2 Ra8 Qh4+ Kf3 f4 b8B Bf5 Ba7 Bg6 Qb8 Qg5 Bc3 Qg1 Be1 Bc3 Na1 Qg5 Rb3 Qh4 Bg2 f1R+ Bf2 Re1 Bg3 Qg5 Bf1 Qh4 Rg1 h1Q+ Rg2 h2 Rh7 Qg1 Rf2 Qg5 Rh8 Qe5 Kg4 h1Q Rh7 f3 Rh8 Kd6 d5 Nd4 Rh7 Kc5 d6 Kd5 d7 Qe8 d8N Qc6 Rh8 Qhg2 Rh7 Rh1 Rh6 Q1h2 Qd1 Ke4 Qc2+ Ke3 Nf4 Qhg1 Nd3 Ne2 Nb4 Q1h2 Na2 Rg1 Rh5 Qgh1 Rf5 Qh8 Rh2 f2 Rh6 Qhd5 Bh3 f1Q Bg2 Be5 Kg5 Qff3 Bh3 Qd1 Bg2 Qfd5 Bf1 Qh7 Rh2 Qhd7 Kh6 Bf6 Rhh5 Nf4 Rh4 Kf3 Rh2 Re6 Rhh5 Rb5 Bd4 Rb6 Ra5 Qc8 Be2+ Kg2 Rh4 Bg5+ Kg7 Bf6+ Kg8 Q8d7 Bd3+ Ne2 Rh6 Rf1 Bh2 Kh1 Bb5 Qg2 Bg3+ Qh3 Bd3 Qdd5 Bc4 Be7 Bg7 Bef6 Ba6 Rf4 Bd3 Rfb4 Ba6 Nf4 Bf1 Ne2 Rba3 Rb2 Rb3 Rb1
1nkr3r/Qp2rB2/b3qNRn/2BB3n/2q3RN/1q2bQQ1/B4n1q/5K1R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Rh3 Kd7 d4 c5 a4 f5 e4 h5 g4 c4 a5 c3 d6 b3 a6 f3 d5 b2 e5 f4 g5 f2+ Ke2 c2 g6 Qb6 g7 Nh6 g8B Nc6 Nc3 b1Q Rg3 h3 a7 h2 Ba3 h1Q Bg2 f1N Ne4 h4 Nf3 h3 Rg6 h2 Nh4 c1N+ Ke1 f3 e6+ Kd8 d7 Bc5 e7+ Kc7 d8R Bd7 e8B Ng3+ Bf1 Nh5 Nf6 Rc8 a8Q Nb8 Qa7 Bb5 Qb3 Bg1 Bc4 Ba6 Bc5 Qg2 Be6 h1R B8f7 Qh2 Qe3 Qbc2 Ba2 Qcb3 Re8 Qbd6 Re7+ Qd7 d6+ Kd8 Qc3 Qe8 d7 f2+ Kd2 Kc7 Qg3+ Kd8 Bc4 Rc7 Re3 Rc8 Re4 f1Q+ Bf2 Qfd3+ Ke1 Qd4 Bce6 Qdc4 Reg4 Qe7 Bc5 Bf2+ Kd2 Re1 Rb1 Re4 Ra1 Be3+ Ke1 Qd6 Rb1 Kc7 Ra1 Rce8 Rb1 Rd4 Ra1 Re7 d8Q+ Kc6 Rb1 Qe5 Qd5+ Kc7 Qdf3 Rdd8 Bd5 Kc8 Ra1 Qe6 Rb1 Qh3 Ra1 Nd3+ Ke2 Qh1 Rf1 Qh3 Rh1 Qh2+ Kf1 Nf2+
b2QbKr1/5R2/2r4b/Nn1bQ1bB/q4B1N/1Br3bn/4NRp1/1k1rRN2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 d2 h5 g3 e3 f3 b6 a4 b7 f2 b5 g4 h6 a3 b6 a2 c5 g2 c6 g3 h7 Ra3 c7 Na6 b8R Qe8 b7 Nf6+ Kd4 d5 Nc3 Qa4+ Bc4 f1B Bb2 Be6 c8N Bh6 Qb3 d1B Bc1 Nc7 Kc5 d4 Kd6 d3 Ke7 d2 Qc2+ Ne4 Nb6 Nb5 Rb1 a1B Nbd5 Rg8 h8N Bh5 Nf3 g1B Qd1 Bh2 Nb4 Nf2 Bb3 Nh3 Nc6 Bg2 Rf1 Bd5 Rf2 Rg7 Ne2 Ke4 Na5 Kd3 e4 f5+ Kf8 f4 e5 Be8 e6 Bf6 e7 Bfg5 Ng6 Bh1 Qe1 d1R Nd2 f3 Nf1 Bg2 Be3 Rc1 Rc8 Rc6 b8Q Bh1 Nh4 Bg2 Bc4+ Kc2 Rc7 Rc3 Qd8 Bh1 Rd1 Bg2 Bc1 Kb1 Bb3 Bh1 Nd4 Bg2 Qe5 Bh1 Re1 Bg2 Rc2 f2 Ne2 Bgf3 Ra2 g2 Rb7 Bg3 Rd2 Bd7 e8B Bfe4 Bh5 Be8 Ne3 f1R+ Rf7 Rf3 Nf1 Rfd3 Rc2 Rd1 Bf4 Rc8 Rd7 Ba8 Rf7 R8c6 Ng1 Bf3 Rf2 Bd5 Ne2 Rg8+
2RNb2k/1b1r1b2/3B1b2/QB4Nn/1b4K1/Nn3BqQ/r1r1pR2/3NrRb1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kg7 b4 h5 f4 a5 c4 d5 c5 e5 g5 a4 c6 d3+ Kf2 d4 f5 a3 g6 a2 c7 d2 b6 e3+ Kf3 d3 b7 e2 b5 e1B b6 h3 Na3 h2 Be2 h4 Rb1 a1B Nc4 e4+ Kg4 e3 Rb4 h3 Rb2 Bb4 Bf3 Na6 b8Q Bd7 c8R Bf2 b7 Be8 Qa4 d1R Na3 d2 Qg3 Qd6 b8N Nc5 Nc6 Re1 Ne2 d1R Rf1 h1B Nd8 h2 Qa5 Nb3 Nc3 Bg1 Rbf2 e2 Qh3 Ra6 Bf4 Nf6+ Kg3 Qd3 Bd6 Nh5+ Kg4 Rh7 f6+ Kh8 f7 Rc1 f8N Rc2 Nfe6 Rd7 Nd1 Bf6 Ng5 Qc3 Bc6 Bd5 Bb5 h1B g7+ Kg8 Bc4 Bdf7 Bb5 Raa7 Nf3 Kh7 g8B+ Kh8 Ng5 Bb7 Bh7 Qe5 Be4 Qh2 Bf3 Qe5 Qc7 Ra4 Qa5 Qc3 Nb1 Raa2 Na3 Qe3 Bc7 Qe5 Bd6 Qg3+
brq2RN1/p4BB1/2B4N/1Q1K1rbR/1r2RNrQ/3nr2b/3k4/r3R1nb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 c4 f5+ Ke5 h5 e4 d5 g4 d3 b4 d4 c5 d2 c6 h3 c7 h4 b6 h2 b5 h3 b7 f3 b6 f4 Ra2 d3 Rb2 f2 Qc2 d1R Bg2 f1R Rb4 d2 Ne2 f3 Nd4 f2 Qa4 Bh6 Bb2 Nd7+ Kd5 Kf4 b8R Ke3 g5 Rfe1 g6 f1R g7 Bg5 b7 Rf5+ e5 Rh4 Nc3 Rb1 Nce2 d1R Nf4 Nh6 g8N Ng4 Rb5 Re2 Re1 h1B Qc4 h2 Rb4 Rf6 e6 Nge5 e7 Rf5 e8B Rg4 Bf7 Kd2 Ra4 Re3 Qb5 Rf6 Nf5 Nf3 Re4 Ng1 Nfh6 Rf5+ Be5 Qe8 Qc4 Nc5 Qb5 Bd7 c8R Nd3 Rc5 Rb4 Bf3 Qe7 Rf8 Qe8 b8Q Ra1 Qd8 Rb8 Qf6 Qc8 Qh8 Be7 Qf6 Bg2 Qh4 h1B Rec4 Rh5 Re4 Bg5 Bh8 Rg3 Bg7 Bdh3 Bg4 Bf3 Bd7 Rg4 Bc6 Bd8+ Kd6 Rf5 Rce5 Bg5 Kd5 Bfg2 Bb7 Nf2 Kd6 Nd3 Rd4 Bf6 Rc5 Bc6 Re4 Re5 Ba8 Re8 Rf5 Re5 Rh5 Bg5 Bb7 Rf5 Ba8 Be8 Bb7 Ne5 Bbd5 Bc6 Kc5 Bb7+ Bc6 Ba8 Kd5 Nd3+
2q1N3/k1rn3b/nR2r2Q/n1b2B2/3BK1n1/p1Nr1N1b/2r1R3/1NQ1RbB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 d5 e4 Kd7 b4 Kc7 c4 Kb6 g4 f5 g5 h5 g6 a4 c5+ Ka7 g7 a3 c6 h3 e5 h4 c7 d3 e6 d4 e7 d2 e8Q h2 Ra2 d3 Qc2 d1N Ne2 h3 Ng1 d2 Ra1 Ne3 Bd3 d1R Qd7 Nc4 Qe6 Rh7 Bb2 Na6 Ra2 Na5 Qc1 Bc5 Bd4 Nf6 g8N Nd7 Re2 Re7 Qh6 Re6 Ne7 Qf8 Kf2 f3 Nd5 f4 Bf5 Rd3 Ndc3 Bb7 c8R Be4 Rc6 Rc8 b6+ Kb8 b7 Ka7 b8N Rc7 b5 Qc8 Bg4 Bh7 b6+ Ka8 b7+ Ka7 Kf1 f2 Rb6 Rf6 Nf3 Re6 Rg1 h1R Bf5 h2 Kg2 f1B+ Kf2 Bh3 Rge1 Nb4 Na6 Rg1 Re5 h1N+ Ke2 Nf2 b8B+ Ka8 Re3 Rg2 Ba7 Rh2 Ne5 Rg2 Kf3 Ng4 Ke4 Rc2 R3e2 f3 Bg1 Rec6 Bd4 f2 Nf3 f1B Bb8 Rb7 Bh2 Ka7 Nc7 Na6 Ne8 Rbc7 Bhg1 Re6+
k2r2b1/1Rn3QB/1bK2nr1/1r2qBR1/NpBnQB2/1n5b/rN3RbQ/8 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 b5 Ke4 h5 d4 c5 a4 Kc7 g4 Kb7 g5 h3 a5 h2 d6 f5+ Kd5 h4 e4 c4 d7 b3 g6 f3 e5 f4 g7 f2 e6 b2 e7 f3 e8B c3 Na3 b1R Nc4 c2 Nb2 h3 Ra2 Bc5 Qd2 Qf6 d8R Na6 Bd7 Bb6 Bc4 f1R Ne2 f2 Rg1 h1N Bf5 h2 Nc3 Ng3 Nca4 Ne2 Rg5 Rg1 Rd7+ Kb8 Qf4+ Qe5+ Kc6 h1B+ d5 f1B Qh2 Nf6 g8B Nc7 a6 Bfg2 Bgh7 Rd8 Bf4 c1N Re7 Be6 Reg7 Nb3 a7+ Kc8 Rf7 Bh3 Rfg7 B1g2 Re7 Rb8 a8Q b4 Rd7 Bg8 Qa7 Ne4 d6 Ra1 Qa8 Ba5 Qa7 Rb5 Qd4 Nf6+ Qe4 Kb8 Re7 Bf1 d7 Bfg2 Rf7 Bb6 Re7 Rc8 d8Q Ka8 Qf8 Rb8 Qg7 Rd8 Ra3 Ra2 Rf7 Na1 Rf3 Nb3 Rf2 Bh1 Rh5 Rg6 Rg5 B1g2 Re7 Nce8 Rb7 Nc7 Bd7 Bf3 Bc8 Bfg2 Bf5 Ned4#
K1rNQ2Q/1Q1B1Q1b/2q1n1R1/N1br3p/6Bq/B1Rbp1k1/7q/rN1n3n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 c6 e5 b6 d5 b5 d3 Ke3 h3 c7 d2 b7 h2 b6 a4 Nf3 Kg4 f5 a3 f6 a2 f7 Qf6 Qb3 d1B Rg1 h1Q Bb5 Ra7 Nd4 Nc6 b8Q Bc5 f8Q Be2 b7 Bd3 Qf7 Qh2 Ba3 Bf5 c8B Nd8 Bbd7 Nh6 g3 Kh3 g4 Bh7 g5+ Ne6 g6 Rd8 g7 Qh4 Rc1 Kg3 Rc3 Qf6 Qa8 Qg6 b8N Rc7 Qb2 Qf6 g8Q+ Qg6 Qe2 Ng4+ Kd2 Qf6 Ndc6 d4 Qh8 Nf2 Na5 Nh1 Nbc6 Qf3 Qb7 e3+ Kc1 e4 Kb2 Qf6 Kb3 Qh6 Ka4 Qg6 Be8 Rd5 Bed7 Qf6 Nd8 Qfh4 Qef1 e2 Qfe8 e1Q Qf5 e3 Qff7 Bde4 Kb5 d3 Ka6 d2 Bc1 d1N Ba3 Nf8 Bg4 Ne6 Bd7 Qef2 Nc4 Qc2 Na5 Be7 Ka7 Bc5+ Ka8 Bd3 Nd2 Qc1 Rb1 a1R Rb6 Qc2 Rc6 Qa4 Rd6 Qc6 Nb1 Ng5 Rh6 Ne6 Rg6 Rc8+
1kB5/6n1/1rQp4/BBRbb1qQ/6rq/BKNN1n2/R3Rp2/1nb2Nqr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 b4 h5 e4 a5 c4 a4 Kc2 d3+ Kc3 h3 g4 f3 b6 d6 b7 Kd7 c5 Kc7 c6 h4 b5 h2 g5 h3 e5 d2 g6 f2 g7 a3 e6 a2 e7 f4 e8Q f3 Bb2 Nd7 b8N Ngf6 g8R Nh5 Rg2 Bh6 Kc4 Ng7 Kb3 Ra6 Ne2 Rg8 Nbc3 Rb6 Ng3 Bb7 Ba3 Ne5 Nd7 Qg5 Nc5 Ba8 Qc1 d1N Qh5 Kb8 Nd3 Bb7 Rhg1 h1Q Be2 h2 Nf1 Ba8 Qc2 Bb7 Rc1 a1B c7+ Ka8 c8B Kb8 Ne3 Be4 Re1 f1Q Rf2 Qh3 Nf1 Qhg1 Rg2 h1R Rh2 Ra6 b6 Qhh4 b7 Bc6 Na4 Be4 Qc6 Nc3 Rc2 Nb1 Rc5 Bb2 Nc3 Ba1 Nf4 Rb6+ Bb5 Bb2 Nd3 Bc1 Rd2 f2 Ra2 Nf3 Ree2 Bf4 Qd5 Be5 Qc4 Ka7 b8B+ Ka8 Bc7 Bd5 Bd8 Kb8 Bc1 Rb7 Ba5 Rb6 Bb2 Rf8 Ba3 Rf4 Kb2 Rg4 Qe4 Bf7 Qc6 Bd5 Kc2 Qg6 Kb2 Be3 Kc2 Qgg5 Kb2 Bc1+ Kc2 Rc4 Kb3 Rg4+
2n2n1q/n2k4/1Qqpb1QQ/2r2r1r/B5bb/1p4NK/RB2R3/N1q1BN1B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 e5 a4 h5 g4 b5 f4 b3 Kf2 b2 Kg2 e4 g5 e3 a5 b4 a6 b3 g6 e2 c5 e1R g7 d3 f6 d2 c6 Re2+ Kh3 Be7 c7 Re3+ Nf3 Re1 a7 Re4 f5 Rf4 Na3 b1Q Bb2 Qc1 Nh2 d6 f7+ Kd7 f8Q Qc6 f6 Rf5 f7 Qc1 Qg4 d1N Qd4 Nc3 Qb6 Nb5 Nc2 Bf6 Ra4 Ne7 g8Q Rh7 Qg2 Bg5 Qh6 Qh8 f8B Rc5 Ne3 Rf7 Ra1 Rff5 Ra2 Bf6 Qgg6 Bg5 Kg2 h3+ Kg3 Bf6 Bg7 h4+ Kg4 Rh5 Nc2 Bg5 Bd3 Bf6 Nf1 h2 Bc3 h3 Na1 Bh4 Be1 Rhf5 Rg1 h1Q Bb2 h2 Kh3 Qc6 Rg2 h1B Re2 Bd5 Be4 Bb7 Bf3 Nc8 Bh1 Be6 Qg4 Na6 Qgg6 Rb8 a8B Nba7 Qg8 Rh5+ Qg4 Rcf5 Qgg5 Nc5 Qgg6 Ba6 Bb7 Bac4 Ba6 Bcd5 Bb5 Bf3 Ba4 Rb7 Qa5 Rb5 Qa6 Nb6 c8N Ra5 Ne7 Nbc8 Qhg5 Bf7 Q5h6 Ne6 Qb5 Nf8 Qb6 Rfc5 Nf5 Be6 Qg4 Rab5 N5g3 Rcf5 Qgg5 Rbc5 Qgg6 Bg4+
1nNbnB2/1Q2q3/p2QNr1r/2N3K1/2bR2qp/3qkbNB/1rQR2B1/6n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Ke6 c4 Kf5 g4+ Ke4 g5 d5 g6 f5 c5 h5 g7 d3 b6 a6 b5 d4 c6 f3 b7 f4 c7 f2 b6 f3 Ra4 h3 Qc2 h2 Ba3 h4 Bg2 f1R Nc3+ Kf4 e4 f2 e5 Rh6 e6 Nf6 g8B Be7 Ne4 Ne8 Nc5 Qd7 Rc4 Bd8 e7 Qd6 Rb4 Be6 c8N Bc4 Be6 Rb1 Rb2 f1Q Beh3 Rf6 Ra2 Rb2 Bb4 Qf3 Ra4 Qe4 Ne2+ Kg5 Rd1 h1B Ng3 Kf4 Bf1 Bf3 Bfg2 Ng7 e8N Qde7 Nc7 Ne8 Kc1 Ke3 N7e6 Nc6 b8Q Ra7 Qa8 Nb8 Ra2 Rd7 Qc6 Rd6 b7 Rh6 Nc7 Rdg6 N7e6 Rf6 Ra4 Ra2 Qd6 d2+ Kb1 d3 Ba3 Bb5 Rd4 Bc4 Bb4 Ra4 Kb2 Ra2+ Kc3 Rb2 Rg1 Nc6 b8Q d1Q Qb7 d2 Rf1 Nb8 Rf2 Ba2 Nf4 Bg8 Nfe6 Qb1 Kc4 d1N Rd2 Nc3 Ba3 Ne2 Bb4 Bg4 Ba3 Qd3+ Kd5 Bf3+ Ke5 Ng1 Nce4 Rfg6 Kf5 Rf6+ Kg5 Bf7 N4c5 Qe4 Nf4 Bc4 Nfe6 Qf1 Bb4 Qfd3 Qdc7 Rb1 Na4 Q7h7 Bf8 Qe7 Qd6 Rb2 Nac5 Qg4+
1k6/RB5b/Kn1n2Qb/1NRQBQrN/rB1n2n1/6r1/3p2Rp/1nbq1R2 w - - 0 1 illegal: No possible last move, all moves rejected
5QN1/4n2b/3N1B1R/1R3r2/K2b2kb/nb3r2/1Qpp2rb/B1nRBqQB w - - 0 1 illegal: No proof kernel
Rr1b3r/b4bNr/n1K1B1QB/5n2/N2N2pk/Q1pB4/2bq3b/BQ2n2R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 d4 Kf6 e4 Kg5 b4 a5 d5 f5 e5 c5 e6 g3+ Kf3 c3 h3 a4 d6 c4 d7 a3 b6 g2 b7 c2 e7 a2 e8B Be7 b5 Nh6 b6 Na6 b8Q Kh4 b7 g5 Qa7 Rb8 Ne2 g1B Nd4 Bh2 Nc3 Bc5 Qa8 Ba7 Qd3 Rh7 Be3 c1N Na4 Rh8 Qa3 Nd3 Bf7 Qa5 d8N Be6 Bg8 Bf7 N8e6 Qd2 Ng7 Rh7 Qd6 Rh8 Be2 Rh7 Qg6 Ne1+ Kf2 f3 Bf4 Re8 b8Q g4 Qb1 Rb8 Be3 Rb4 Qf8 f4 Qfd6 Rb8 Qa3 Qc1 Bd3 Nf5 Kf1 f2 Ke2 f1B+ Kf2 f3 Bh6 Be8 Be6 Qd1 Bc8 Bf7 Be6 Nd6 Ke3 Nf5+ Ke4 f2 Kd5 Qd2 Kc6 Be2 Bd7 f1R Bc8 Bd1 Be6 Kg3 h4 Bc2 h5 Kh4 Be3 Rhh8 h6 Rf3 h7 Rh3 Qb7 Qe2 Bh6 Qd2 Rd1 a1B Qb1 Bc3 Rc1 Ba5 Rd1 Rhf8 h8B Bd8 Rc1 Bd1 Rc2 Rg8 Ra2 Bc2 Nh5 Re8 Be5 Rg8 Ng7 Rh8 Qf8 Rb7 Nc3 Bc5 Bhf4 Nc7 Ra8 Rb8 Nb3 Ba7 Na4 Na6 Ba1 c3 Be3 Kg3 Nd4 R3h6 Qa3 R6h7 Bh6 Kh4
K3rQ1n/N3bbQN/rk3N2/4Rn1N/p1nR1B2/1n4b1/1r2Qn1p/1BBq4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 f5 Kc7 g5 d3 Kc3 d4+ Kb3 h3 Ka4 e3 c5 h2 f6 e2 g6 e1R g7 h4 c6 h3 f7 e4 Nf3 e3 Ng5 d2 Bd3 e2 Nh7 Nh6 g8Q Na6 Nc3 Be6 Bb1 d3 Ne4 Kb6 c7 Be7 f8Q Nf7 Nef6 Qd6 Qg3 Bd8 Qgg7 Bd5 Rf1 h1N Nh5 h2 Rf4 Ng3 Rd4 Nf5 Qc2 d1N c8N+ Kb7 b6 d2 Kb5 a4 Ka5 Nc5+ Na7 Nf2 b5 d1N Ra3 Rg8 Re3 Nb2 Re5 Rd1 Qe4 Rd2 Qeg4 e1B Qe4 Kb8 Qe2 Nb3+ Ka6 Qd7 b7 Kc7 b8N Nc4 Re7 Nh8 Re5 Qf7 Nd7 Rb2 Ndf6 Qd7 Qe3 Bf7 b6+ Kb8 b7 Kc7 Qe2 Qd5 Qa3 Re8 Qaf8 Qf3 Kb5 Qd3 b8B+ Kb7 Bd6 Qd1 Bb8 Na1+ Kc5 Ka6 Kc6 Nb3 Nb5 Ka5 Kb7 Ra6 Bd6 Re7+ Kb8 Re8 Na7+ Kb6 Ka8 Bd2 Bb4 Bf4 Bbd2 Bg3 Bf4 Be7+
b3kNr1/1Q1n1n2/r4R2/b1pbp1N1/Q1K3nb/B2B4/5NQq/1rbR1R1Q w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 h5 f4 c5 d4 e5 b4 a5 g4 e3 b6 a4 b7 h3 f5 h4 b5 c3 Kd3 c2 f6 h2 d5 a3 g5 a2 g6 e2 b6 e1B f7+ Kd7 d6 h3 g7 Qe8 Nf3 Ne7 g8Q Nec6 Nbd2 Be7 Ng5 Ra6 Ba3 c1B Nde4 Ba5 Kc4 Nd8 Nf2 Qf8 Qb3 Qh6 f8N+ Ke8 Qa4+ Nd7 b8Q Bb7 Bd3 Ba8 Qb7 Nf7 Rd1 h1B Qg2 h2 b7 Bed8 Qh7 Rg8 b8Q Qh5 Rb1 a1R Qbb7 Qh6 Rb6 Rb1 Rf1 Qh5 Qh3 Bf3 Qg2 h1N Qh6 Qh2 Qhh3 Ng3 Qh1 Nh5 Q3g2 Nf6 Rc6 Ng4 Rb6 Bf6 Rc6 Nb8 d7+ Ke7 d8R+ Nd7 Nge4 Bh4 Ng5 Be4 Rf6 Bc6 Rc8 Bf3 Rcc6 Kd8 Rcd6 Bc6 Bh7 Ke8 Rdd1 Bf3 Bd3 Bd5+
1B2n3/b2N1rRR/k4NN1/pb1p3n/1rQ2Q2/Qn1Rn2b/2nR3r/1q2K2B w - - 0 1 illegal: No possible last move
5k1n/b1nRp1NR/R4n2/2B4Q/1r1NR1Q1/2rbbq1b/Qr1p1b2/K2N1B2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 b4 d5 c4 h3 Kc2 h2 Kb2 e3 f4 e2 c5 e1B g5 d3 c6 d4 g6 h4 g7 d2 f5 a4 b6 a3+ Ka2 d3 f6 h3 b7 Na6 b8R Bf2 c7 Nh6 g8N Nf7 b5 Qd5+ Qb3 d1N b6 d2 b7 Qf3 Ne2 Bh6 Nd4 Kf8 Nc3 Ne3 Nd1 Ng4 Qb1 Bhe3 Nh6 Rg8 Nhf5 Nh8 f7 Nf6 Ng7 Ra7 Qg6 Ra8 Kb1 a2+ Kb2 Ra7 Qh5 Ra8 Rg1 h1R Rg4 h2 Re4 Ra7 Ra8 Rg1 b8Q h1B Qb3 Rb7 Ra7 Rb4 Rb7 Bh3 c8Q+ Ne8 Rc7 Rg3 Qcg4 Nf6 Rd7 B1g2 Rb1 Nc7 Ka1 Bh1 Ba3 B1g2 Qc4 Rb2 Bc5 Rb4 Bd3 Bf1 Rb3 Be2 Ra3 Bef1 Qb3 Be2 Bb5 Bc4 Ra6 Bd3 Kb2 a1B+ Ka2 Bc2 Bf1 Bd3 Qbd5 Bc3 Qc4 Rb2+ Ka1 Ba5 Qce6 Bb6 Qa2 Ba7 Qhf5 Bg5 Qb1 Bc2 Bg2 Qe2 Bd6 Rc3 Ne8 Qf3 Qa2 Bge3 Bc5 Bd3 Bf1 Rg6 Qfh5 Nfd5 Nd6 Kg7 f8R Rb8 Rf5 Rb2 Rf7+ Kg8 Rg7+ Kf8 N6f5 Rgb6 Rh7 Nf6 Ng7 R6b4
1kn1K1Rq/p1r1R3/3N1R2/p2b1NQ1/Qn1r2r1/b4B1n/r4Nr1/2b1BRQ1 w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 b6 Qb3 bxa5 Qc2 Qg5 Qd1 Qd8 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 f5 d4 h6 Kg6 f3 Kf7 f4 b4 h3 g4 h5 e4 h2 g5 f2 d6+ Kb7 e5 f3 e6 c4 d5 h4 d7 h3 d6 c3 e7 c2 e8R Bh6 b5 Qb6 d8R Nc6 d7 Qd4 b6 Kb8 b7 Nb4 g6 Ne7 g7 Rg8 Bd2 c1B Be1 Ba3 Bg2 f1R Qa4 f2 Nc3 Bhc1 Ne4 Qe5 Ne2 Rg1 Bf3 f1R Nd4 Rg2 Nf5 Rff2 Rf1 Ra2 Nf2 h1N Rf8 h2 Ke8 Qf6 Rb1 Qh4 Rb2 Qh8 Re2 Ng3 Re4 h1R Re6 Nh5 Re4 Ned5 Re7 Nhf4 Nd6 Nb6 Nf5 Kc7 b8N Rh3 Nd6 Rh4 Nc6 Nh3 Nd4 Bb7 N4f5 Bd5 Rb8 Nc8 Rb6 Bb7 d8Q+ Kb8 Ra6 Rd4 Qb6 Rdg4 Qe3 Bd5 Qg5 Qh4 Rc6 Rh8 g8Q Rh7 Q8g6 Rf7 Rg8 Qh8 Q6h5 Rd4 Qhg4 Rh7 Qg3 Rhh4 Qh2 Rhg4 Qg1 Nb6 Qh2 Be3 Re4 Bec1 Nc8+ Kb7 Rf6 Rb8 Qg1 Ka8 Re5 Rb7 Ree6 Kb8 Ncd6 Nc8 Re7 Rc7
1n6/pBkbR1pn/1N3Q2/4rrb1/1bbQ3N/N1Bq1Q1n/1R2K1bN/1r1B4 w - - 0 1 illegal: No possible last move
3N1Nn1/bb4NQ/rk3n2/2n1R1q1/BrB5/KNB1R1bR/4npp1/4n1qQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 Kc2 Kd7 Kb2 Kc7 e4 d3 h5 d4 h6 a4 h7 d2 c5 g3 e5 g2 c6 g4 e6 d3 e7 f3 e8R f4 Ne2 g1B Ra3 f2 Rh3 f3 Nd4 g3 Ne6+ Kb6 c7 g2 Ng7 Bb7 c8B Na6 Re5 Nc5 Bd7 Qg5 Qc2 d1Q Nd2 Bh2 Nb3 d2 Bc4 f1N Ka2 f2 Bb2 Ra7 Bc3 Bg3 Qe4 Nh2 Qe1 Ne7 Qh1 Ra6 Bc6 Rg8 h8Q Ng4 Qh7 Qg1 Be8 d1N Bc6 Nf6 Be8 Ka7 b6+ Ka8 b5 Rh8 Bd7 Neg8 Bc6 Bd6 Bd7 Bb8 Bc6 Ba7 Bd7 Bd5 b7+ Kb8 Bc6 Kc7 b8N Kb6 Be8 Bb7 Nc6 Qc1 Nd8 Qg5 Bd2 Nc3+ Kb2 Ne2 Bc3 Kc7 b6+ Kd6 Qf5 Rh4 Qh7 Re4 Bd3 Rb4 Bc4 Bc6 b7 Kc7 b8N Bb7 Bc6 Kb6 Nd7+ Kc7 Nf8 Kb6 Ra1 a3+ Ka2 Nfd7 Re1 Ndf6 Kb1 a2+ Kb2 a1N Ba4 Nc2 Re3 Ncd4 Ka3 Nf3 Re5 Nc1 R1e4 Ne1 Re3 Ne2
NRBbq2r/7N/1b3rn1/QQ5b/qR6/n2KbN1p/3pBb2/R2nB1Bk w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kc2 Ke4 g4 h4 g5 e2 g6 e1B c7 h3 f5 d3+ Kb2 d4 f6 a3+ Kb3 a2 Kc4 d2 f7 d3 g7 Ra6 Ne2 Kf3 Bb2 e4 Qc1 d1N Bc3 d2 Ba5 e3 Qb2 Bh4 Nbc3 Qe8 Na4 Bc5 f8N Bg4 c8B Nd7 b8B Bd8 b7 Bcb6 Nh7 Bh5 Qb5 Ne7 g8Q Ng6 Ng1+ Kf2 Bf4 e2 b8R e1B Be2 Kg2 Nf3 Bef2 Kd3 Bbe3 Qgb3 Rf6 Qc3 Nb6 Bg3 Nc4 Nb6 Na3 Na8 Bdb6 Rb1 a1B Rb4 Bd8 Qc7 Bad4 Bb6 Bc5 Rf1 h1Q Qa7 Qg1 Qaa5 Kh1 Ba7 Bcb6 Re1 Nc3 Ra1 Qd1 Bh4 Be1 Bf2 Qa4 Bg1 Bh4 Bf2+ Nd1 Be1 Bbc7 Bc5 Bb6 Bd4 Bh6 Bdf2 Bhe3 Bg1 Bhf2
2bBR3/q2R1N2/3K4/5Nr1/1pR1N1np/nqb2q1R/1nrQQQ1n/kB1n4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 a4 b5 d4 f5 g5 c5 a5 f3 a6 h3 d6 b3 a7 h2 d5 f4 g6 h4 d7 b2 g7 f2 d6 b4 Qa4 f3 Nh3 Nf6 g8R Qb6 d8R Rh5+ Bg5 Bg7 d7 Na6 Bg2 f1N e4 f2 Rge8 Ne3 Nd2+ Kc3 Qd1 f1N Qe2 b1Q Ra5 c4 Rc5 Qb7 Kd6 Kb2 e5 c3 e6 c2 e7 c1N Be4 Nc7 Rc4 Ka1 Qf2 Qa2 Bb1 Nd3 Ne4 Nb2 Qe2 Rb8 a8Q Ned1 Qa7 Ng4 Qaf2 Qb3 Bf6 Rc5 Nhg5 Qa7 Nf7 Ra8 Qd2 Rb5 Nh6 Rg5 Nf5 Rb8 Rh8 Rb5 e8Q Rc5 Rh7 Bh8 Qh5 Bg7 Re8 Bh8 Bd8 Bc3 Rg1 h1Q Rg3 Nfh2 Rh3 Ne5 Qhe2 Qf3 Bf6 Neg4 d8N Qba3 Rd7 Qb3 Nf7 Nb5+ Ke7 Na3 Kd6 Rc7 Bd8 Bh8 Rd4 Rc2 Rc4 Bc3
1bR3RK/q2Q2N1/R1nBB3/Rr2r1p1/2r1Q2p/N2bn1q1/N4B2/k1r1b2r w - - 0 1 illegal: No proof kernel
2rr3Q/r1n1nB2/RrpR2Q1/K1kb3N/3nrQq1/8/3p1B1Q/2bBN1Rq w - - 0 1 illegal: No proof kernel
4qQb1/1n1R2qB/2p2q2/R5Bk/q1p2R2/n2rr3/qbQB1NB1/NQK3b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 a5 g4 f5 d4 Kf7 Kd2 Kg6 e4 h5 g5 f3 b6 h3 e5 a4 e6 h2 b7 a3 e7 a2 e8R c6 d5 f2 d6 h4 d7 f4 b5 f3 b6 h3 Qe1 Ra3 Kd1 Rd3+ Qd2 Nh6 Na3 Na6 b8B Nb4 b7 Kh5 g6 Nf7 g7 Bc5 g8B Nc2 Re2 Qe8 d8Q Nd6 Nb1 Na3 Qf6 Be6 Bh7 Bg8 Bg2 f1Q+ Re1 f2 Qf8 Re3 Qc2 Ba7 Bd2 Qe2+ Kc1 f1Q Bc7 Qf6 b8Q Nb7 Rf1 Qg4 Rf2 Qgg7 Bd8 Bb6 Rf4 Rd3 Nf3 Bg1 Nc3 Re3 Nd1 Rd3 Rb1 a1B Nf2 Bd4 Ra1 Bb2+ Kd1 Re3 Nd4 Rd3 Nb3 Re3 Bhe4 Rh6 Be7 Rg6 Ra2 Rgg3 Na1 Rd3 Bh7 Rge3 Ne4 Bf2 Re1 Bg1 Nf2 h1Q Bd8 h2 Rf1 Qfe5 Bg5 Qa5 Rf7 Qa4 Rd7 Qf6 Ng4 Qg7 Rf4 Qf6 Nf2 Qg7 Bge4 Qg2 Bd5 h1Q Bde4 Bf6 Kc1 Qh4 Bd5 Qgh2 Bg2 Bc3 Qe5 Bd4 Qb5 Be5 Qbb1 Bc3 Bh6 Qhf6 Bg5 Bb2+ Kd1 Na5 Ne4 Be5 Bf1 Qed8 Kc1 Qe8 Qcb3 Nb5 Bc3 Nb7 Qd1+ Qe2 Nf2 Qb3 Ra5 Qa4 Bg2 Na3 Qdb3 Qa2 Bd2 Bd4 Q3c2 Bb2+
3Q3q/1b1Rr2B/1pkbb3/BN1N3K/nQ2rp2/RN2q2n/3q1Q2/1B1Q1q1q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 c5 Kg4 f5+ Kh5 c4 d4 h6 e4 h3 a4 c3 g4 c2 a5 h2 a6 b3 e5 f3 g5 f4 g6 f2 d6 b2 e6+ Kc6 a7 b6 d7 Bb4 d5+ Kc5 e7 Na6 e8N Bb7 d6 Rh7 g7 Kc6 Na3 b1B Bd3 f1Q Nf6 Ba2 Bd2 c1Q Nb5 Be6 Bb1 Nc5 Nf3 Na4 Ra3 Rc8 Be1 Qe3 a8Q Rb8 Nd5 Nf6+ Kg6 h5 g8B h4 Nd2 h3 Nb3 Bc5 Qa5 Ne4 Qb4 Re7 Bh7 Nf2 Kh5 Ra8 Rg1 h1Q Rg7 h2 Qf3 Qh8 d8Q Qhg2 d7 Nh3 Qf2 h1Q Qf8 Ree8 Qbd2 Bg8 Qfe2 Rac8 d8Q Rc7 Qdd1 Re4 Ba5 Be6 Qf3 Qgd2 Qf2 Bd6 Qfe7 Be5 Qb4 Bd6 Rf7 Re7 Rg7 Re8 Rd7 Re7
1N3nbr/1B2N3/Rp2QB1R/Qp1rq1Rn/nq3k1B/3n2q1/1b1R4/3nQK2 w - - 0 1 legal: proof: f4 d5 h4 e5 b4 exf4 c4 g5 cxd5 gxh4 b5 a6 Bb2 axb5 Ba3 Qd6 Bc1 Qd8 a4 Kd7 d4 Kd6 g4 f5 e4 c5 a5 h5 g5 h3 a6 b6 g6 c4 g7 h4 a7 h2 Be2 c3 Bh5 h3 Ra4 c2 Bb2 c1N Ra2 f3 Qd2 f4 Bg6 f2+ Kf1 Na6 Nf3 Qf6 Nc3 Nc5 Ra6 Qe5 Qe1 Nf6 g8R Nfd7 Rg7 Rb8 a8Q N1d3 Be8 Na4 Rg5 Be7 Ba1 Nf8 Bc6 Bd8 Bb7 Be6 Qa7 Bg8 Bb2 Qg7 Ne5 Bf6 Nd7 Rd8 Nb8 Qe7 Qa8 Qe5 Ba1 Ke7 d6+ Ke6 d7 Kd6 Rhg1 h1Q d5 Qf3 Rh1 h2 Bb2 Qg3 Ba1 Ke7 d6+ Ke6 Nd5 Bg7 Ne7 Kf6 Rg1 h1Q Qa7 Qhf3 Rh1 Qe3 Rh3 Qc5 Qa8 Ke6 Rh6+ Bf6 Bb2 Qb4 Ba1 Rc8 d8B Rc5 d7 Rd5 Ke2 f1N Bb2 Qed4 e5 Ne3 Bc3 Nd1 Kf1 Qe4 Bd4 f3 Bf2 Qgg4 Bh4 f2 Nec6 Qd2 Ra5 Qdb4 Be7 Nf4 d8R Rc5 Rd2 Qed4 Ra7 Kd5 e6+ Be5 Bf6 Nd3 e7 Ke6 Rh7 Rd5 Rh6 Qgf4 Ke2 f1N Ra5 Qg1 Qa6 Bb2 e8Q+ Kd6 Qc8 Qfd4 Ne7 Ng3+ Kf3 Qge3+ Kg2 Nh5 Kf1 Qg3 Qa8 Qde5 Qd7+ Kc5 Qe6 Kd4 Qa7 Qe3 Qa6 Ke4 Qa8 Nac5 Ra1 Kf4 Qa3 Qg3 Qc3 Qbe4 Ra6 Na4 Qa5 Qb4
7q/B3KprB/1n3N1N/1b3QR1/2n1rR2/Q3qqRq/pB1B1bq1/n4Nk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 Kg3 c4 Kf2 g4 a5 e4 d5 g5 h5 b6 h3 c5 a4 b5 a3 c6 d3 c7 d2 g6 f3 b7 h4 b6 h2 g7 a2 Na3 h3 Nb1 d4 Ba3 d3 Qc1 d1N Bb2 d2 Ne2 Ne7 Kf6 Ra4 g8R Qd3 e5 Ng6 e6 Bd7 c8Q Bc5 e7 Rh7 e8N Ne5 Nd4 Bb5 Rg3 Qe3 Qf5 Rg7 Rhg1 h1Q Bd3 h2 Rg5 Rb4 R1g3 Qg2 Qc3 h1Q Qa3 Kg1 Bc2 Na6 b8B f2 b7 f1Q Ba7 Qh8 b8B Nc3 Bc7 d1Q Ba5 Na4 Nd2 Qfd3 Nf1 Qdf3 Re1 Rc4 Bd2 Nb4 Rc1 Bb6 Ke7 Qc3 Bd3 Nc2 Nf6 Na1 Re1 Rb4 Re2 Qcc8 Rf2 Qh3 Bc2 Qch8 Bb1 Qfe4 Rf4 Q4f3 Qe4 Rc4 Nf5 Rd4 Qc2 Re4 Nh6 Bd4 Qc8 Nb6 Bc2 Qd3 Qcc5 Bf2 Bb1 Qde3 Bd3 Ra4 Bh7 Rc4 Qc8 Re4 Qf5 Nec4+
1B1kr3/1b1Bpq1K/5B1R/6b1/4NrrN/4qRbN/1B1b1npQ/1Q2b1nQ w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 f4 g5 h4 d5 b4 a4 c4 a3 f5 e3 Kd3 a2 c5 e2 h5 e1B b6 g3 c6 g2 f6 g4 c7 g3 b7 Ra4 b5 Nc6 b8Q Ne5+ Ke2 d3+ Ke3 d2 b6 d4+ Kf4 d3+ Kg5 Rf4 h6 Qd5 b7 Qf7 h7 Nh6 Bb2 Nhg4 Nc3 Nf2 Qb1 d1Q Ne4 d2 Rh6 Qc1 Nh3 d1R Bb5+ Rd7 Qa8 g1B b8B Bb7 c8N Qe3 Ncd6+ Kd8 Nf5 Rc7 Nh4 Bh2 Bd7 Rg4+ Kf5 Rhg8 h8B Nf3 Bg7 Rc4 Bh8 Ng1 Bg7 Qe8 f7 g2 Bgf6 Bg7 f8Q Bg3 Qa4 Bh8 Qad1 Ra4 Qg7 Qf7 Qh7 Re8 Qd6 Bf4 Qe5 Bg5 Qh2 Rd4 Qd3 Bd2 Rf1 a1B Qb1 Rc4 Bc1 Bac3 Bb2 Be1 Qh1 Bcd2 Qh2 Qd5+ Kg6 Bg7 Qh8 Qf7+ Kh7 Rb4 Nc5 Rbf4 Ne4 Nd1 Rf3 Nf2 Qh1 Qe6 Bfd4 Be5 Qh2 Bc7 Bf6 Qf7+ Qg7 Qc4 Qh1 Rf5 Qf7 Nd1 Qd5 Nf2 Qe5 Qf7+ Bg7 Bd6 Qeh2 Be5 Qa2 Bg3 Qb1 Qh5 Bgc3 Rff4 Bf6 Qf7+
1Qb4k/q1Kp2q1/4RNR1/b4pR1/1n2n3/QB6/1rNb1NQr/B1bq1N1b w - - 0 1 illegal: No possible last move
2RQ4/KpBq3r/2k1br2/b1NbRp1Q/R2nQ2r/nqN2Nr1/4B3/3rN3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 g4 f5 e4 c5 d4 h5 a4 h3 e5 f3 Ke3 h4 e6+ Kd6 g5 f2 a5 c4 g6 c3 g7 c2 a6 h2 a7 h3 e7 b3 e8Q b2 Nd2 b1B Qdh5 Ba2 Be2 f1R Ngf3 Qh4 Ne1 Rg1 Ndf3 Qg3 Qe4 Ne7 g8N Nd7 Nf6 Nc6 Bd2 c1R Ba5 Rb8 a8R Rh7 Kd3 Bb3 Ra4 Rd1+ Kc3 Nde5 Bc7+ Ke7 R8a5 Be6 Ra8 Rd8 Rc8 Rg2 Rg1 h1R Rf1 h2 Rg1 Na7 Kb4 Nc4 Kc5 Na3 Kb6 Nc6 Rf1 Bh6 Rg1 Bd2 d6+ Kf8 d5 Nd4 d7 Ke7 Ka7 Ba5 Rf1 Rf8 d8N Qd6 Rf2 Rg3 Rg2 Rff7 Rf2 Qd7 d6+ Kf8 Nd5 Ke8 Nc3 Bd5 Qhg4 Rf6 Qh5+ Qf7 d7+ Ke7 Bb6 Kd6 Bc7+ Kc5 Nc6 Qe7 d8Q Qd6 Nb8 Qd7 Na6+ Kc6 Qe5 Rhg1 Qf4 h1Q Nc5 Qh3 Qe4 Rg4 Rg2 Rh4 Rg8 Rg3 Re8 Bg8 Re5 Be6 Bc4 Qg2 Bf1 Qc2 Be2 Qb3
1RrQ4/pBp5/1B1qrR2/3Q2nr/2B3br/qq1QR1r1/n2K1R2/kNb4N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 g4 Kd6 d4 Kd5 b6 f5 b7 h5 e3 h3 b5 h4 b6 f3 g5 c3 g6 f4 g7 h2 Ra6 f2+ Ke2 Kc4 e4 h3 d5 c2 e5 Kb3 e6 f3+ Ke3 Rh6 d6 Nc6 b8Q Nf6 g8Q Nb4 d7 Na2 b7 Nh7 e7+ Re6+ Kd2 Ng5 e8B Bg7 Qe1 Bb2 Bg2 f1R Qe2 f2 Bf7 Re1 Qf3+ Re3 Ne2 f1Q Ng3 Qc4 Rf1 h1R Rf2 h2 Qe4 Qe7 d8R Qd6+ Qd4 Rf3 Re8 Bd7 Qd8 Rc8 b8R+ Qb5 Nh5 Rg3 Bb7 Qbb4+ Nc3 Qa4 Qd3 Ka3 Rb6 Qb3 Re7 Rhe1 Re8 h1R Re7 R6e5 Bc4 Bg4 Qgd5 Rh4 Rc6 Rf5 Re3 Re5 Rb6 Re6 Rc6 Reh1 Rb6 Nb4 Nb1+ Ka2 Rc6 Ka1 Ra6+ Na2 Rc6 Rgg1 Ng3 Rh5 Rb6 R1h4 Nh1 Rg3 Rc6 Bf6 Ba3 Bb2 Bc5 Nf3+ Ke2 c1Q Bd4 Qcc3 Bb6 Qba3 Kd1 Qcb3+ Ke2 Ng5+ Kd2 Qe5 Rd6 Qf4 Rd7 Qe5 Rdf7 Qed6 R7f6 Bc1+
N1B2N1n/Q5rB/2n2R1N/R1Q2nBp/2n3qb/B1r1n1R1/p1k2Kn1/4n2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Kc5 g5 Kb4 g6 a5 b3 h5 e5 d5 g7 f5 c5 f3 e6 h3 c6 h2 b6 d3 e7 f4 e8N f2+ Kd2 d4 b7 f3 c7 a4 Qe2 a3 Nd6 a2 Bg2 f1N+ Ke1 d2+ Kf2 d3 Qe7 Ng3 Nc3 Ra7 Rb1 Nh6 g8R Nc6 b8B Qd7 Ncb5 Bb7 c8B Qg4 Nh3 Ngf5 Ng5 Nf7 Nc7 Kc3 b4 Kc2 b5 Ra3 b6 Rh7 Rb3 Nh8 Ndf7 Rg7 Rb5 Rc3 Qc5 Be7 Nh6 Ba8 b7 d1N+ Kf1 d2 Nge6 f2 Ra5 Nb2 Nf8 d1N Bg5 Nc4 Be4+ Kb2 Rg1 h1N Rg3 Bd8 Kg2 f1N Ba7 Nhf2 b8Q+ Bb7 Na8 Nd3 Bb6 Be7 Qa7 Kc2 Bd8 Bf6 Be7 Nde3+ Kg1 Ng2 Bd6 Nfh4 Bh7 Nf5 Rf3 Nde1 Kf2 Nfe3 Rg3 Rf7 Rg6 Be7 Rf6 Rg7 Qd4 Nd8 Ba3 Bf3 Bf4 Nc6 Qdc5 Bd8 Rf7 Bh4 Bg5 Nf4 Rf6 Bh1 Qc7 Nfg2 Q5a7 Nd8 Qcc5 Nc6
2Q4B/RBN1q3/1RN5/3N1rn1/5nbb/1Rr1QqnB/R1Kpnpb1/3rk3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 c5 h5 g5 a5 e3 f5 c6 d5 c7 f3 b6 d3 g6 f2 b5 f4 b7 f3 g7 h3 b6 a4 Qb3 a3 Rh2 h4 Qd1 a2 Rh1 d4 Qb3 h2 Qb5 h3 Ba3 Qe7 Be2 f1Q Bb4 Nd7 b8Q Ra3 b7 Nb6 Qa4 Nh6 g8R Bg4 c8B Nf7 Rg6 Rh5 Bc3 Nd5 Qaa7 Rf5 Rb6 Ng5 Bd1 f2 Nf3 Nf4 Ne5 Qg2 Nc6 Qf3 Kc1 d2+ Kc2 Bg7 Bd7 Rb3 Qc8 Bf6 b8R Ra3 Be2 d1N Ba6 Rb3 Bb2 Nc3 Bb7 Nce2 Rd1 h1N Rd2 h2 Bc3 Kd5 e4+ Kc4 e5 Nhg3 e6 h1B Bb2 Bg2 Nc3 Ra3 Nd5 Rd3 Bc3 Nh7 Qa3 Bh4 Qc1 Ng5 Bb2 Qe8 e7 Qf7 e8N Qe7 Rb1 a1R Nec7 Nf1 Bc3 Nfg3 R1b3 Rb1 Qa3 Rd1 Ra8 Re3 Kb2 d3 Rc2 d2 Bh8+ Rc3 Ra7 Kd3 Qc5 Nc1 Kb1 Ke2 Rca2 Rd3 Kc2 Ke1 Qe3+ Nce2 Qb8 Bh5 Bdc8 Rf6 Bg4 Rf5 Bh3 Bg4 Qc8 Rc3+
1nbNq1QQ/qRB2bN1/3qN3/6n1/1n1B2Kb/1B1krq2/p5pR/R1rN4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 c5 g5 h5 a5 c6 g3+ Kf3 g4+ Ke2 d3+ Kd2 Kd4 e5 g2 h6 f3 e6 a4 b6 g3 b5 f2 b7 a3 c7 f4 e7 f3 e8R a2 h7 Ra3 b6 Ne7 Nc3 Nec6 Nh3 g1N Re7 g2 Qb3 Qe8 Nf4 Nh3 Bb2 Nb4 Rh2 Ng5 Be2 f1B Bd1 Rg8 h8Q+ Rg7 Ke1 d2+ Kf2 Bc4 Kg3 f2 Ne6+ Kd3 Kg4 f1Q Rf7 d4 Bc2+ Ke3 Nd1+ Ke2 Bc3 d3 Bd4 Qg1 Rd7 Bd5 Qc4 Bd6 Bb3 Bg3 Re7 Bh4 Rd7 N8a6 b8N Rg8 Nc6 Nb8 b7 Qe3 Bg7 Qa7 Bd4 Rf8 Ncd8 Rf1 Ng7 Bf7 Nge6 Ra5 Re7 Re5 Rd7 Re3 Re7 Bd7 c8N Re1 Nd6 Bc8 Nf5 Rg1 Nb2 Rc1 Nfg7 d1Q Rc7 Qf1 Nd1 Qf2 Qd5 d2 Re7 Kd3 Rd7 N8a6 b8B Qf6 Bc7 Nb8 Bcb6 Qe5 Rb7 Qd6 Bc7 Nf3 Nc3 d1Q Qg5 Qe2 Nd1 Qf2 Qe7 Ng5 Qef8 Qf1 Qfg8 Qf3+
BBq2rQq/N2r4/RRb2bBk/1qBQK3/2R5/8/p2pn1nn/2rN2qQ w - - 0 1 illegal: No possible last move, all moves rejected
3N3Q/k1Brr3/4RN2/Bb4q1/N6K/1qR1qpr1/Bbn2q1p/nQRb3R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 h5 c4 d5 b4 Kd7 e4 Kc7 g5 Kb6 e5 f5 g6 d3 g7 a4 e6 f3 c5+ Ka7 c6 d4 c7 h3 Kg3 f2 e7 d2 e8Q a3 Nf3 h2 Qe7 a2 Ba3 f4+ Kh4 d3 Qc2 d1R Nc3 d2 Kg5 h4 Bc4 f1Q Qh7 h3 Qb1 Na6 Ne4 Nf6 g8N Bd7 c8R Qf2 Nc5 Bg7 Na4 Nc5 Qe8 Nb3 Nd4 f3 Ne6 Nd5+ Nf6 Rh7 Qh8 Ne3 Bd5 Qg8 Nd8 Nc2 Rc3 Re1 Bc1 d1B Bd2 Re7 Bf7 Be8 Bc4 Qd5+ Kg4 Qe5 Bf7 Qee3 b6+ Ka6 b7 Bb5 b8R Ka7 Rbc8 Rd7 Re1 h1Q R8c6 h2 Re6 Rh3 Rf1 Rg3+ Kh4 Qhg2 Rh1 Rc8 Bg8 Rcc7 Bf7 Bf1 b5 Re7 Be1 Rcd7 b6+ Ka8 b7+ Ka7 Qb2 Bb5 Rc1 a1Q Qb1 Qb2 Bd2 Nba1 b8B+ Ka8 Bc7 Ka7 Rd6 Qgg1 Ba2 Qb3 Re6 Qgg2 Ng8 Bd4 Nf6 Qgg1 Rd3 Bb2 Bda5 Qfd2 Rc3 Qgf2 Re4 Qdd5 Re6 Qdg5#
3k2B1/n5b1/Q3K1N1/rb2R2b/1Br3qn/rNpqpQ1R/R3N3/1B1r1Nn1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 h5 Ke3 e5 d4 a5 f4 c5 b4 a4 g4 h3 d5 c3 f5 h2 f6 a3 d6 a2 g5 c2 b6 c4 g6 c3 b5 h4 g7 h3 b7 Nh6 g8B Ra5 b6 Bg4 Qf3 Nc6 b8R Na7 b7 Bh5 Ba3 c1Q+ Nd2 Bg7 Bd3 Qd1 f7+ Kd7 Bb4 Nf5+ Kf2 Qc8 f8N+ Kd8 d7 Nh4 Kg3 e3 Nf1 e2 Ng6 e1N Bb1 e4 Kf4 e3 Ne2 Qd3 Ra8 Rh7 b8N Rh6 Na6 Ra3 Qb7 Nef3 Nc5 Ng1 Qa6 Rh7 Nb3 Rh6 Ne5 Rc6 Ng6 Rc4+ Kg5 Bh6+ Kf6 Bg7+ Ke6 Ra5 Bc2 Ra3 Rd1 a1R Bb1 Ra5 Rd2 R1a3 Ra2 Ngf3 Rg1 h1B Rg5 h2 Re5 Ng1 Rb8 Bc6 Rbb5 Bhf3 Rh5 h1R Rbe5 Ng2 Rh3 Bb5 Qb7 Bh5 Qf3 Kc7 Ke7 Nh4 d8Q+ Kb8 Qd4 Qg4 Qb6+ Kc8 Kf7 Kd7 Qbc6+ Kd8 Qa6 Rh2 Nec1 Rd2 Ne2 Qge4 Ke6 Rd1 Bc5 Qed4 Bb4 Qg4+
1NB1Q2Q/R1Bb1q2/Bn2r3/1QR1nq1r/NQ1r1qkp/6q1/1b2K1p1/1N1n4 w - - 0 1 illegal: No proof kernel
kNB1R2B/5Qnb/1q1B3B/3q1NK1/1N2Rp1p/1Q2b1q1/8/rqnQr1br w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 Kc7 g4 Kb7 c4 f5 e5 a5 g5 h5 b6 h3 e6 h4 g6 d3 e7 h2 e8Q d4 g7 f3 c5 a4 b5 f2 Ne2 a3 Bh3 f1Q Ng3 a2 Qf7+ Nd7 Nc3 Ne7 g8Q Qf3 Re1 h1R Re4 Ne5 c6+ Kb8 b7 Qb6 Rb1 a1B c7+ Ka7 Nd5 Bh6+ Re3 Bb2 b8B+ Kb7 Nb4 Ra1 Qfb3 Ka8 Qgf7 Re8 Ba7 Bb7 c8N Be4 Bb8 Qg4 Na7 Bf4 Bd6 Qg6 Nh5 Qg3 Ng7 Ba3 Nac6 Bh6 Nc2 Bc5 Nb8 Bg5 Nb4 Bh6 Bb2 Bf4 Qdc2 Bg5 Re1 Bf4 Qc1 Bh6 Kd1 d2 Ke2 Nd3 Qcd1 Bg5 Rf3 Be3 Rf4 Bg1 Rg4 Be3 Bf4 Bg1 Bh6 f4 Nf5 Be3 Rg8 Bg1 Ne3 Bg6 Bc8 Nf5 Rh8 Re4 Re8 Bh7 Bc3 Ng7 Bb2 Qgg6 Kf3 Nc1 Nf5 d3 Bf6 Re7 Re4 Bce3 Bd4 Qgd6 Kg4 Qd5 Kg5 Re6 Qf1 d1Q Bc3 Qf3 Qfd1 d2 Bb2 Qa6 b6 Qg3+ Qg4 d1Q Rd4 Nd3 Nd7 Rc6 Rde4 Nh5 Bh8 Rcc1 b7+ Ka7 b8B+ Ka8 R4e7 Ng7 Re4 Qb6 Bd6 Qc2 Nb8 Qb1 Bc5 Re1 Bd6 Qf2 Qf3 Nc1 Qfd1 Qg3+
q1rQ3R/bK1R2Q1/1nN1Rbq1/R1Q2bk1/3qp2b/B2N1np1/4rBn1/1B6 w - - 0 1 illegal: No possible last move
2KnN1n1/n3Qq2/3BRNn1/4bB2/qqbp1r1Q/2BpRNr1/5b1Q/5k1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 b4 Ke4 c4 d5+ Kh5 a5 g4 f5 g5 a4 c5 a3 g6 a2 e3 f3 g7 h3 b6 d3 b7 h2 c6 f2 b5 f4 c7 f3 b6 Be6 c8Q Qe7 Qe1 Qb4 Kg5 h5 Qe2 h4 Qd2 h3 Qe1 Rh4 Qd8 Nc6 b8Q Rf4 b7 Na7 Bb2 Bc5 Bc3 Bd4 Bg2 f1Q Qh4 Qd1 Ne2 Qda4 Re1 h1N Qe7 h2 Bh3 f2 Bf5+ Kf3 e4 Kg2 e5 f1Q Nd2 Bf2 Nf3 Ng3 Qbc7 h1N b8B Nh5 Ng3 Bf7 Re3 Be6 Rae1 a1B R1e2 Bf7 e6 Bb2 Be1 Be5 Bc3 d4 Qcd6 Be8 Qdc7 Bb5 Kg6 Bc4 Kf7 Qbb5 Qcd6 Qbb4 Bc7 Rd8 Bb8 Rd7 Ke8 Rb7+ Kd8 Rb5 Ne4 N1g3 Re1 Ne2 Ng3 Rd5 Nh1 Ra5 Qed7 Rc5 e7 Rc6 Qh6 Rg6 e8N Rg3 Qf7 Rfg4 Qd6 Nhf4 Qfe7 Ng6 Kc7 Rf4 Kd8 Nc6+ Kc8 Nd8 Qdc7 Nc1 Qcd6 Nb3 Qdc7 Na5 R1e2 Nh6 g8N Nac6 Ngf6 Ng8 Re1 Bd6 Re6 Be5 Re3 Qfd1 Qa7 Kf1 Bd6 Qda1 Qad7 Qa7 Qeh7 Q1a4 Qdg7 Qf7 Qf8 Qba3 Qe7 Q4b4 Qh2 Qaa4 Q7h4 Na7+
2BN1n1B/1Q1Br3/1r1kn3/q3q3/q1rp1pbR/1NQ1R1b1/3Q2b1/R1KQ3b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 d5 e4 f5 g4 a5 c4 h5 c5 h3 c6 d3 c7 a4 b6 h4 b5 a3 e5 h2 g5 f3 e6 f2 g6 a2 b7 h3 b6 Rh6 g7 Nc6 b8Q Kd6 b7 Nf6 g8Q Nh7 e7 Nd4 e8B Ra7 Qg7 Ne6 Qb2 d4 Nf3 Qf6 Bd7 Qe5 Ng5 Rf6 Be2 f1B Bg4 Bg2 Qa8 Bg7 b8R Nhf8 Qab7 Bh8 Re1 h1R Re3 h2 Bh3 Rf1 Ra8 h1B Nf7+ Ke7 Nd8 Kd6 Qbc2 Re1 Rb8 Ra4 Ba3+ Rb4 Kc1 f4 Nd2 Rg6 Qc3 Bf6 Nb3 Bh4 Qd2 Bg3 Ba4 Bd7 c8Q Rh6 Qcc3 Rf6 Rb1 a1Q Bb5 Qa2 Ra1 Rh6 Rc8 Re2 Rc5 Rc4 Bb4 Qa5 Rc6+ Kd5 Be7 Bc8 Bg5 Rf6 Rc7+ Kd6 Rh7 Rg6 Rh4 Rf6 Qa2 Re1 Bd7 d2+ Kb1 Rh6 Bf6 Rg6 Bh8 Rh6 Qdc1 d1Q Qad2 Rf6 Nc5 Qda4 Nb3 Rf7 Qcd1 Re7 Kc1 Re2 Q2e1 Ra2 Qed2 Rb2 Nc5 Rb6 Nb3 Nc7 Be8 Bg4 Bd7 B4f3 Bhe6 Bg4 Bf5 Nce6 Bc8 Ng7 Bfd7 Nge6
r2Rbq1Q/2K1qNqR/1N5B/4Q3/r1p2qb1/NB1Q4/pbQ1nr1B/2n2k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 g4 f5+ Kf3 Kd5 b4 Kd4 e4 c5 d3 h5 b6 a4 b5 a3 g5 a2 g6 c3 b7 c2 b6 h3 e5 c4 e6 h4 g7 h2 e7 h3 e8Q Nh6 g8Q Qe7 Qef7 Nc6 b8Q Bg7 b7 Ng4 Qgf8 Ra4 Na3 Nf2 Be2 Rg8 Bd2 c1Q Qg6 Bd7 Qc7 Be8 b8B Rh8 Be3+ Kc3 d4 Nd3 d5 Qd2 d6 Nc1 d7 Nd4+ Kf2 f3 Kg3 f2 Kf4 f1R+ Nf3 Rf2 d8N Qb2 Qe5 Qbb4 Rg1 h1Q Nf7 Qg2 Rh1 h2 Bd3 Bf6 Bc2 Qbc5 Qh7 Qg7 Bb3 Rg8 Bd2+ Kd3 Qg6 Qb4 Be3+ Qd2 Qc2+ Ke2 Rd1 h1B Qh7 Qb4 Qh8 Bg2 Qfd6 Bh3 Rh1 Bg4 Rh7 Kf1 Qdd5 Nc6 Qdd3+ Qe2 Rb1 Nd4 Qb5 Kg2 Rb2 Qc5 Qdd2 Bd7 Qcc3 Rf1 Qd1 Re8 Rd2 Qcf8 Qcc2 Rc8 Rd3 Be8 Bd2 Kf2 N3e5 Qe1 Bd6 Rca8 Nd7 Qee7 Nb6 Kg1+ Qf3 Be5+ Ke3 f4+ Ke4 Bf6+ Kd5 Nde2 Qe4 f3 Bh6 Bb2 Bh2+ Kf2 Rd4 Kg2 Qed3 f2 Qc5 Rd1 Qc7 f1Q Qe5 Qff6 Nd7 Qf2 Kc6 Qf4 Kc7 Rf1 Rd5 Rf2 Rd4 Qh4 Nb6 Kf1 Rd8 Qhe7+
1nR1N1KQ/bQ1qr1Nb/2Nq1B2/2Q3nr/k1p1qQ2/4pr1q/1b4R1/1B5R w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 c5 Kf4 a5 Ke5 h5 f4 e6 g4 a4 d4 h3 b4 e3 d5 a3 d6 e2 b6 Kc6 f5 Kb5 g5 e1R+ Ne2 a2 d7 h2 g6 c3 b7 h4 f6 c2 g7 c4 f7 h3 Bg5 c1Q Nd2 Qa3 Ne4 Qf3 Qd5+ Ka4 b5 Ra6 b6 Ne7 g8R Qa3 Kf6 e5 Nd6 e4 Qc5 Rh5 Ng3 Nec6+ Ke6 e3 Ne8 Ne5 Bd3 Nf3 Bb1 Ra7 Bf6 Rf1 Nf5 Bd6 Rhg1 h1Q f8Q h2 Kf7 Ng5+ Kg7 Qd5 Rg2 h1Q Qe7 Qc7 d8N Qd7 Nc6 Rf3 Rf8 Qd4 Kg8 Qh3 Nfg7 Qe4 Qd8 Be5 Qc7 Bb2 Qf4 Na6 b8Q Bb7 Qd8 Nb8 Qdc7 Qad3 Q7e5 Q3d6 Qe7 Bc8 b7 Bd4 Bd3 Bb2 Rh1 a1B Bb1 Bd4 Qd8 Bab2 Qc7 Qd8 Qf7 Bf5 Qe7 Q8d7 Qee5 Na6 b8Q Rc7 Qb7 Nb8 Qcd5 Ba7 Qc5 Nh7 Qh6 Ng5 Qf4 Qc8 Qh8 Re7 Nc7 Qcd7 Rc8 Bg6 Nce8 Bh7+
B2bnrN1/1RqkrB1n/3B2qQ/4Qn2/1p6/Q1pNRK1n/b1Q5/r3Nb2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 h5 g4 f5 d4 c5 e4 b5 a4 b3 g5 b4 e5 b2 e6 c4 e7 c3 d6 f3 a5 h3 a6 f4 d5 h4 g6 h2 a7 h3 g7 Qa5 Bc4 Nd7 Ne2 Qc7 Nd2 b1Q Re1 h1R Qc2 Ngf6 g8N h2 Ra5 Nh7 Rb5 Bg7 Rb7 Ndf6 Bb3 Rb8 a8B Be6 Bc4 Bh6 Ba2 Bg5 d7+ Kf7 d8Q Ne8 d6 Rg1 Ra7 Rb7 d7 Bd5 Qb8 Ke6 d8Q Bc4 Qd4 Rh1 Qg7 Kd7 Qh6 Rg1 Qb3 Qg6 Qa3 Bd5 Nb3 Bc4 Nbd4 Bf6 Nc2 Bf7 Bb1 Ba2 Be3 Rh1 Nc1 Bg5 Re2 Rd1 Ne1 h1N+ Kf1 f2 Kg2 f1N Ncd3 Rc1 Bc5 Ne3+ Kf3 Nf2 Bd6 Nf5 Re3 Nh3 Bc2 Rd1 Bb3 Ra1 Bf7 Bh4 Ra5 Bg5 Rb5 Bf6 Qba7 Bg5 Q7a4 Bf6 Ke4 f3 Qc2 f2 Kf3 f1B Rb6 Ra7 Rb8 Bh4 Rb7 Kc6 Nf6 Rf8 Ng8 Kd7 Nf6+ Kc8 Nh5 Qb6 Nf6 Neg7 e8Q+ Qd8 Qb5 Ne8 Rd7 Qa5 Ng8 Bd8 Qe5 Qc5 Rb7 Qc4 Rb6 Re7 Rb5 Qc7 Rb7 Kd7
R2n1bK1/qBB2n2/N3q2R/Q4n2/pQb3r1/1Rp1NB2/2rN1N2/4nqkr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 a5 g4 f5 g5 f3 g6 f2 g7 h3 b6 c3 b7 f4 Qe1 f3 Be2 h2 Nh3 f1Q Nf2 Nh6 g8B h4 Bd5 Qd7 Kf6 Kd4 b4 c5 e5 h3 b5 c4 b6 c2 e6 Nc6 b8N Nd8 b7 Qg1 e7 Nhf7 e8N Rg8 Na6 Rg4 b8R a4 Nec7 Qe8 Ra3 Be6 Bb7 c3 Rb3 Bc4 Nd5 Qe4 Ba3 c1N Ne3 Nd3 Bd6 Qe8 Qc1 Ne1 Bc7 Qe4 Rc8 Rb8 Qa3 Qd5 Qb4 Qe4 Nfd1 f2 Bf3 f1Q Nf2 Qd5 Ba8 Rb5 Bb7 Qd7 Ra8 Re5 Ng2 Re2 Ne3 Qd5 d3 Rc2 Nd2 Qg3 Rg1 h1N Rg2 Qh2 Rg1 Ng3 Rh1 Qhg1 Rh2 Re4 Kg6 Qe6+ Kh7 Rh4+ Kg8 Rf4 Rg2 Nf5 Rg6 Bg7 Rf6 h2 Rh6 Rg4 Bb6+ Ke5 d4+ Kf4 d5 Kg3 d6 h1R d7 Bf8+ Rg6 Nc6 d8Q Kh2 Qg5 Ncd8 Bc7+ Qg3 Rh6+ Kg1 Ba5 Qb8 Bc7 Ng7 Qgb5 Qa7 Q5a5 Nf5+
r1Q1rN2/1R1nbb1Q/5nq1/Q1q2N1q/p4pN1/2bR1K2/k3B1BN/5bBn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 Kb4 b6 f5 h5 d5 h6 a5 h7 g5 c5 f3 b7 d3 e5 a4 e6 f4 e7 d2 e8B d4 c6 d3 c7 Nh6 Nc3 Qe7 Bc6 Rg8 h8Q Bg7 Rb1 Re8 Be2 Be6 c8N Bf8 Rh3 Nd7 b8N Ng8 Qe1 Kb3 Nd6 d1Q Be3 d2 Nce4 Ka2 b4 Ngf6 b5 Bf7 Nf5 Qc5 b6 Be7 b7 g3+ Kf1 g2+ Kf2 g4 Qh7 Qdc2 Rb6 d1Q Qa5 Nh5 Nf6 Qcd3 Ng8 Nhf6 Ngh6 Q3b1 Nd6 Qg6 Ndf5 Nf8 Nd7 Qdd5 b8Q g3+ Ke1 Qe5 Kd2 f2 Nf3 f1B Qc8 g1N Nh2 g2 Rb7 Qed5+ Ke1 Qe5 Rg3 Nh3 N6g4 g1B Bg2 Nf2 Bd4 Nh1 Rd3 Bf2+ Kd1 Be1 Bg1 Ne6 Nf8 Bc3 Nd4 Qeh5 Nf5 Qc6 Rf3 Nc5 Rd3 Bb2 Ke1 Ncd7 Kd2 Ng3 Ke1 Bc3+ Kf2 Qc5+ Kf3 Nh1
n2r3b/5bQr/b2N1b1R/4r2n/pp1RB3/k1qNnQ2/N4BQQ/1K1Bq3 w - - 0 1 illegal: No proof kernel
1KB1N1n1/2R5/Rb2q2Q/1b1nN2p/1q1B2Qq/bQ1pn3/5k1q/NrrQ3R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 g4 d5 e4 a5 c4 h5 b6 h3 b7 d3 b3 a4 g5 d2 g6 f3 g7 f2 Ra3 h2 Bb2 d4 Bh3 f1Q Ra2 d3 Nf3 f4 Na3 Qe2 Nc2 a3 Na1 Na6 b8Q Qh4 Bd7 Bb7 Bc8 Bc6 Ke6 Qee1 Ne5 f3 Qc7 f2 Qd6+ Kb6 b4 f1N b5 Rb8 Bc3 Ne3 Bb2 Nb4 c5+ Ka5 b6 Kb5 b7 Nbd5 Bd4 Be8 Rg1 h1Q c6 Q1h2 c7 Rh7 Qa6+ Kb4 Rh1 Bb5 Qb6 Bc5 Qc6 Bb6 Kd7 Qee2 Kd6 Rh6+ Kd7 Rf6 Kd8 Rf1+ Qf6 Qeg4 Qg5 Qe6 Qf6 Nh6 g8Q Re1 Qgg4 Ng8 Nc6+ Kc4 e5 Ra8 b8Q Ra6 Qdf3 Rc1 Qd1 Ra4 Qb7 Rb4 Qfg5 Rbb1 Qb8 Qf5 e6 Qfe5 e7 Qe6 Qdf3 d1Q e8N Qa4 Qd1 Qb4 Qf6 Nf4 Ne5+ Kd5 Qfg5 Ke4 Qf6 Q4g3 Qh6 Qge1 Rb2 a2 Rb3 Qeg3 Ra3 Qgh3 Ra6 Q3g3 Qh3 Nfd5 Qhg4+ Qf4 Bd7 Qh4+ Kc8 Qh2 Kb7 Qh4 c8R Qh2 Nb3 a1B Rc7 Bb2 Bc8 Ba3 Na1 Qh4 Qa8 Qh2 Kb8 Qh4 Qb3 Qh2 Qgd1 Qfg3 Qc6 Qgh4 Qg7 Kf4 Qh6+ Kg3 Qd7 Kf2 Qdg7 Qbe7 Qgg4 Qb4
rRnN1BKn/Q3R3/b4n2/bQ2R1p1/1qNQ1R1n/r2qN2p/2B5/r3b2k w - - 0 1 illegal: No proof kernel
1Rq3nN/r5Rn/1b1KbRQ1/2R2p2/1B1QNb1r/2NB4/1p2qq1B/br3k2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kf6 a4 Kg5 d4 Kh4 a5 b5 a6 g5 d6 c5 d5 f5 a7 c4 e5 c3 d7 c2 e6 g3+ Kf3 g2 d6 b3 e7 b4 e8Q b2 Ne2 Kh3 Qd4 b3 Nec3 Be7 Ne4 Rh6 Bd3 g1Q Ra5 Bf6 Bd2 c1B Qg6 Rh4 Nbc3 b1R Rc5 Qe8 d8R Nd7 Be1 Nf8 Rd7 Nh7 Rg7 Be6 d7 Qc8 d8B Be3 Bc7 g4+ Ke2 g3 Kf3 g2 Bd6 Rb8 a8R Rb7 Rb8 Ra7 Bg3 Qe1 Bf8 Qd2 Rc1 g1B Rc6 Be5 Bb4 Bd5 Rf6 Be6 Ne2 Qa2 Rc5 Qaa6 N2c3 Bc1 Ke2 Kg2 h3 Bb2 Kd2 f3 Bh2+ Rg4 h4 f2 Ke3 Ba1 h5 b2 h6 f1Q+ Kd2 Bf4+ Kc2 Ng5 h7 Rh4 h8N Qf3 Rd5 Qf2+ Kb3 Bd7 Rc5 Qb5 Bc2 Qbe2 Bd3 Kf1 Kc4 Nh7 Kd5 Qf3 Qe5 Be6+ Kd6 Qg3 Rcb5 Bb6 Rc5 Be3 Qf4+ Qf2 Qe5 Bh6 Qd4 Bf4+
n3k3/2q5/1b3Q1R/Q2pB1q1/2Rrpb2/2NBq2q/nrN2BBQ/2nR1bK1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 d5 g4 e3+ Kg2 e2 c5 e1Q f5 e4 f6 a4 g5 a3 g6 d3 c6 a2 c7 h3+ Kh2 h4 g7 d2 b6 Qe3 b5 Na6 b7 Nc5 b8B Nd3 b6 Ra4 b7 Ne7 g8R Rd4 Bb2 Nc1 Qc2 d1N Nf3 Nc3 Bd3 Qg5 Rg6 Bh6 Ba7 Rf8 b8Q Ba6 Qa8 Nc8 Qd2 Nb6 c8B Qc7+ Qf4 Bc4 Rd1 Bb5 Kh1 h2 Ne1 Bc4 Qd2 Qe3 Qg2 Bf4 Rh6 Rg8 Qe2 Rg2 Nc2 Ba6 Qd2 Re2 Qb8 Na8 Qb4 Bb5 Bh3 Rf2 Bg2 Re2 Nba3 Rf2 Rb1 a1B Qa5 N3a2 Bc3 Bc4 Rb4 Bb2 Nb1 Ba3 Rb2 Bc5 Rb4 Bb5 Rc4 Bb6 Bb4 Ba6 Bd6 Bb5 Be5 Ba6 Qe1 Rd2 Qf2 Bb5 Na1 Rb2 Nc2 Ba6 Nc3 Bb5 Bf3 Ba6 Kg2 h3+ Kf1 Bb5 Bg2 h1Q+ Qg1 h2 f7+ Kd7 f8Q Ba6 Qg7+ Ke8 Qf6 Bb5 Bh3 Qhf3+ Qf2 Qg4 Bg2 h1Q+ Qg1 Qhh3 Qh2 Qee2+ Kg1 Qg5 Bb8 Bd2 Bg3 Bf4 Bh4 Qee3+ Bf2 Qd8 Bd6 Qc7 Be5 Bc5 Bf1 Bb4 Rc6 Bc5 Bc4 Bb6 Bf1 Be2 Rc4 Bf3 Bd3 Be2 Rb4 Bf1 Ra4 Qhd7 Rc4 Qdh3
5r2/4qQ1n/1kb2b1b/2p1R2q/n1b4n/1qrR1B1R/1B1QN1pN/N1B1K1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 e4 Kd7 d4 c5 b4 Kc7 h4 a5 d5 g5 d6+ Kb6 e5 f5 d7 a4 h5 a3 e6 a2 e7 f3 e8Q g3 h6 g2 h7 f2+ Ke2 g4 Nf3 g1N+ Kd2 g3 Nh2 c3+ Ke3 g2 Qd2 c2 Qf7 f4+ Kd3 f3 Nc3 Qe7 d8R Bd7 Be2 Bc6 Bd1 f1B+ Ne2 f2 Rd4 Kb7 b6 Nd7 b5 Bh6 Kc3 Ngf6 Rd3 Rhf8 h8B Nh7 Be5 Kc8 b7+ Kd8 b8N Nf3 b6 Nh4 Rb1 Ra3+ Rb3 Kc8 Na6 Kb7 Nb4 a1B+ Bb2 c1Q+ Nc2 Nf5 Bf4 Nh4 Rg1 Qb1 Bg5 Ka6 b7 Nb6 b8R Qa2 Rh3 Na4+ Kd3 Qb1 Re8 Qa2 Rc3 Kb6 Be3 Qb3 Bg5 Qf6 Re5 Qe7 Ke3 Rc8 Rd3 Rf8 Nc1 Be2 Bf4 Bf1 Bf3 Be2 Bg5 f1Q Bf4 Qd1 Kf2 Qd5 Be3 Rc3 Bg5 Bf1 Ne2 Qb1 Be3 Qba2 Ke1 Qab3 Re6 Qh5 Re5 Rc4 Ba3 Bc3 Bb2 Bd4 Na1 Rc3 Re6 Bf6 Re5 Qd6 Qc2 Qde6 Bec1 Qe7 Qd2 Bd7 Ng3 Rc2 Rd4 Bc4 Ne2 Bc6 Rd3 Rc3
K5qr/1B5n/bNr1B1k1/1pq2R1b/2N2Bn1/5pR1/bQ2QN1b/1qN1Q1n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 Kf3 h5 Ke4 c5 g4 h3 a4 f6 d4 Kf7 d6 b3 Kd5 c4 e4 c3 e5 c2 g5 h4 a5 h2 e6+ Kg6 d7 b2 a6 f3 a7 f5 e7 f4 e8N f2 Qe1 h3 Nd6 Kh5 g6 Rh6 g7 Qe8 d8Q Re6 Nc4 Bd6 Qe7 Qf7 Ne2 Nd7 Kc6 Nf8 d5 Kg6 Bg2 f1N Nbc3 b1B Ne4 Nh6 g8B Nd2 Nf2 Ng4 Ra3 Nf3 Rf1 Ng1 Rg3 h1B Kb6 Bb8+ d6 h2 Bb7 Ba2 Be3 Qe8 Nc1 Bf3 Bd2 Rf6 Q7e2 h1Q Be6 Qh5 d7 Qc5+ Ka6 Qf7 d8Q Qg8 Qd4 Be5 Ncd3 c1Q Qb2 Qb1 Nc1 Rb8 a8N Bd6 Bd5 Be5+ Nab6 Rc6 Ka7 Bc7 Ba8 Ba6 Bb7 Nh7 Qc3 Qh8 Rh3 Nh2 Nfd3 Bh5 Be6 Ng4 Qb2 Qg7 Rff3 Rh8 Nf2 Nf8 Ka8 Qg8 Be3 Bd8 Bd2 Bh4 Be3 Bg3 Bd2 Bh2 Rhg3 Qd5 Re3 f3 Re5 Qd4 Bf4 Qc5 Rf5 Nh7+
1QRb1R1r/1n4b1/B5qB/p2Q2n1/krNN1B2/2R2KQ1/b1bq3p/1n1R3r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 a5 g4 d5 c4 Kd7 f4 e5 b4 h5 g5 h3 b6 Kc6 b7 e3 g6 e4 f5 h4 g7 d3+ Ke1 d4 c5 Kb5 c6 h2 c7 e2 Kf2 e1Q+ Kg2 e3 f6 e2 f7 d2 Kf3 h3 Ke4 d3 Ke3 Qd6 Nf3 Nd7 b8B Nc5 Ng5 Nh6 g8Q Bg7 f8R Qg6 Rd8 Nb7 Ne6 Nf7 Rf8 Ng5 Ra3 Bd7 Rb3 Ka4 Nd4 Be6 c8R Bc4 Bd6 Rb8 b5 Bd5 Rg1 h1R b6 h2 Bf4 Be6 Na3 Bf7 Qc2 d1B Qc7 d2 Nc4 Bc2 Rc3 Qd1 Qe5 e1B Qd5 Bh4 Bd3 Nh7 Be2 Bd8 Kf3 Qe1 Bh6 d1N Bcf4 Qd2 Bd3 Nf2 Rd1 Ne4 Ne5 Be6 Ba6 Bf7 Nc4 Be6 Rd3 Nc3 Re3 Nb1 Rc3 Nc5 b7 Ng5+ Kg3 Ra8 b8Q Nb7 Qbd6 Rb8 Qc7 Nc5 Qcd6 Rb4 Qb8 Nh3+ Kf3 Nb7 Qg5 Bf7 Qg3 Be6 Ne3 Beb3 Qd5 Ba2 Nc4 Ng5+
kb3B2/B1q1Q3/Q1b1nQ1p/3pKQ2/1R2Brqq/2n1bR2/N4n1R/n4rN1 w - - 0 1 illegal: No possible last move, all moves rejected
2r5/Rb3R2/2QN1p1r/qB4Bk/qQNbB2N/n1q1n2b/2b2p1r/2Q1Q1K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 c4 d5 b4 h5 e4 a4 g4 f6 c5 Kf7 b6 Kg6 e5 a3 c6 d3 b7 d2 e6 d4 c7 a2 e7 d3 e8N h3 g5 h4 b5 h2 b6 h3 Nd6 Nh6 Nc3 Nd7 b8Q Ne5 b7 Nc4 Bg2 Nf5 Nce4 Na3 Nf3 Rh6 Nc4 Ne3 Qe1 d1Q Nh4+ Kh5 g6 d2 g7 Bc5 g8B Bd4 Ned6 Qa4 Be4 d1B Bgh7 Bf5 c8Q Qda5 Qbc7 Bc2 b8Q Bd7 Rg1 h1R Rg7 h2 Qbb4 Bh3 Rf7 Rb8 Q7b7 Ra8 Qcc6 Rc8 Qb2 Qc3 Q7b4 Qa5 Bhf5 Qa4 Bd7 Qa5 Rb1 a1Q Be8 Qa2 Ra1 Qab3 Bd2 Qba4 Qbb1 Rg1 Bd7 h1B Qbc1 B1g2 Be8 Rh1 Ra2 Rh2 Kg1 f3 Qd5+ Bf5 Bb5 Bh3 Qc6 Bd7 Qb6 Bc6 Ra1 Bb7 Qc6 Be5 Ra2 Nd1 Bf4 Ne3 Bg5 Bd4 Nb2 Nac4 Bh7 Qa7 Qc7 Q4a6 Qc6 Q6b6 Ra6 Na3 Nbc4 Qd8 Be4 Qc7 Rb6 Qa4 Ra6 Qca5 Ra7 f2+
1Q1NR3/2K3nr/n4p2/1R1Q1n2/1Nq1nBBk/bQq1b3/bpr1B3/R1Q1q3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 e4 c5 d4 h5 a4 h3 g4 c4 d6 c3 d5 b3 a5 h2 d7 c2 d6 b4 a6 h4 a7 b2 Ra6 h3 Be2 b3 Qf1 Rh7 Nc3 b1Q Nd5 b2 Ra1 Kh4 g5 f3 g6 f2 g7 Qc7 d8Q+ Ne7 g8Q Na6 Nb4 Nc5 Bf4 Be6 Qc1 f1Q Qb8 Ba2 Bg4 Qe1 Ne2 Qc3+ Nd4 Nf5 Be2 Qc4 Ne6 Ng7 Nd8 Be7 Rd1 h1N Rd5 h2 Bg4 Qc6 d7 Nf2 Be2 h1N Bg4 Nb7 Rb5 Ng3 Be2 Nc5 Bg4 Qc8 Be2 Bg5 Kd6 f6 e5 Bh6 e6 Qc3 Qe3 Qbe1 e7 c1B e8R Bd2 Qb3 N3f5+ Kd5 Qa6 Bg4 Qa4 Kc6 Nfe4 Kc7 Bc1 Qd2 Qa6 Qdd5 Be3 Qc8 Rb8 a8B Rb6 Qb8 Rd6 Qdd1 Rd2 Qc1 Rc2 Bd5 Qe6 Bc4 Qd5 Bce2 Qdc4 Bh3 Nh5 Bhg4 Bf8 Ne6 Be7 d8Q Nhg7 Qd5 Nd7+ Nc6 Ba3 Nd8 Ndc5 Nb4 Na6+
K5Br/1bBr4/k4pbR/3nB1r1/1p5Q/4bQq1/1q1nRqR1/1Q1rBN1N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 b5 Ke4 c5 d4 Kc7 g4 Kb7 a4 h5 a5 f6 g5 h3 g6 c4 g7 h2 d6 f3 Kd5 c3 e4 h4 d7 b3 e5 f2 a6+ Kb6 a7 b2 e6 c2 e7 b4 e8R h3 Re2 Ba6 Nd2 b1R Ra2 Qc8 d8B+ Qc7 Be7 Nd7 Bd6 Qb8 Be5 Bc8 Bb2 c1R Bc3 Bc5 Qb3 Ra1 Qb1 Rd1 Bg2 Rh5 Nf1 Rg5 Be1 Kb7 Rad2 Ka6 Kc6 Nb6 d5 Nc4 d6 Be3 d7 Ra3 d8B Rd3 Bdc7 Rd7 Rc2 Nd2 Bd5 Bf4 Ng3 f1Q Nf3 Qf2 Bb3 Be3 Bf7 Nh6 g8Q Nf5 Qg7 Nb3 Bg8 Nd2 Rf1 h1B Qh6 h2 Qh4 Bg2 Nh1 Bh3 Rg1 Bg4 Rg2 Bh5 Rc4 Bg6 Rf4 Bb6 Rfg4 Ne3 R4g3 Nd5 Rh3 Nf1 Nd2 Be3 Ne4 Nd2 Neg3 Rg7 Nf1 Rd7 Nhg3 h1Q Rhh2 Rh7 Rh3 Qh2 Nh1 Qhg3 Rhh2 Bg4 Rh3 Qd8 Rhh2 Bc8 Rh3 Rb8 Rhh2 Rb7 a8Q+ Ra7 Rh3 Rh8 Qd4 Nf4 Bcd6 Qf8 Rh6 Qf7 Qde4 Qb3 Bb8 Nd5 Qh4 Nb6 Bbd6 Qb2 Qb7+ Ka5 Kc7 Kb5 Kb8 Ka5 Qd5+ Ka6 Qf3 Rd7 Bc7 Nd5 Ka8 Bb7+
1K2nq1k/2B1qR2/Qq2p2b/1RNQ3B/r3N3/1r1RR1NB/3rb2p/3n2bb w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kg7 b4 a5 f4 h5 c4 d5 f5 a4 g5 e3 Kf3 e2 Kf4 e1B Ke5 h3 c5 d3 f6+ Kh7 b6 d4 b7 a3 c6 h4 b5 h2 f7 d2 c7 d3 b6 a2 Bh3 e6 Ne2 Na6 b8N Nf6 b7 Ne4 Ng3 Bf2 Re1 h1B Nc3 Qe7 Nd7 Bg1 b8R Bh6 f8R Nf2 g6+ Kg7 Qf3 d1Q Re3 d2 Nc5 Qf1 Qd5 d1R Rb5 Rd2 Nc3e4 Nd1 Rf7+ Kg8 Rab1 a1Q+ Bb2 Rb8 g7 Qa5 Rd3 Bd7 c8Q+ Qad8 Rbb3 Nc7 Qa6 Ne8 Re3 Qb5 Rbd3 Qbb6 Bd4 Qf8 Rb5 Qde7 Bc3 Ra8 Ba5 Bc8 Rf4 Kh7 g8B+ Kg7 Bf7 Rg8 Rbb3 Kh8 Bh5 Rg4 Rf5 Rb8 Rf7 Bd7 Rb4 Bb5 Rbb3 Bc4 Rb5 Rf4 Ra3 Be2 Rad3 Qbb7 Bc7 Qb6 Ng5 Rc4 Ng5e4 Ra4 Bf5 h3 Rbb3 h2 Bd8 Qeb7 Bh3 Qa5 Bb6 Nc7 Rb2 Qe8 Kd6 Qf8+ Kd7 Qa7 Rb4 Rb7 Rbb3 Ne8+ Kc8 Qb5 Rb1 Qb2 Ba5 Qf6 Bc7 Q6e7 Rbb3 Rbb4 Rb1 Qb6 Rbb3 Rc4 Rb1 Rc3 Rb5 Qa5 Kb7 Rb3 Kb8 Qb6+
b3rQNk/4rQ2/1Rq1p3/qQb1r1Bq/3n1R1p/b3N3/1N1BKQn1/1B5b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Kg7 g4 a5 f4 h5 g5 d5 f5 e3 g6 e2 b6 d3 b5 h3 b7 h2 b6 d4 c5 e6 c6 d2+ Kf2 e1R c7 a4 Nh3 h4 Qh5 d1Q Nf4 a3 Ng2 d3 Nc3 d2 Na4 a2 Ne3 Nf6 Rb1 a1B Nb2 Qc2 Bd3 d1Q+ Bd2 Nc6 b8Q Bc5 b7 Ne5 Rf1 Nd5 f6+ Kg8 g7 h1B Qa7 Nf4 b8Q Bcb7 c8Q Nf3 Qd7 Rh6 Qb5 Ng2 Qc8 Be4 f7+ Kh7 f8B Qa5 g8N+ Kh8 Qg6 Rh7 Bh6 Re7 Qf8 Rae8 Qgf7 Ba8 Bg5 Ba3 Bf5 Qc6 Bd3 Qdc2 Bh7 Qg6 Qab6 Qh5 Bg6 Rc1 Ke2 Rc5 Bf5 Re5 Qd4 Bc5 Qf4 Rc8 Qg3 Rd8 Qf2 Rde8 Nd1 Qa2 Qb6 Re4 Qg3 Re5 Rb5 Qa4 Bb1 Qa5 Rf2 Bc3 Nb2 B3b4 Qa6 Ba3 Rb6 Nh2+ Rf3 Qh7 Rf4 Nf3 Qf2 Qh5 Qb5 Nd4+
2Kn1RQ1/3b1BN1/2R1p1rQ/Br2b3/2r1pbbQ/2qk2N1/2R2nnq/1B3R2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 h5 c5 e6 g5+ Kf5 g6 d3 Kc3 d2 Kd4 h3 c6 h2 b6 h4 c7 a4 b5 h3 g7 a3 b7 a2 b6 Nh6 g8B Bd7 c8R Be8 Na3 Ra4+ Nc4 Qc7 Bf7 Rg8 Bd3 Ng4 Qe1 d1R Ne2 Rg6 Qh4 Ne3 Rf1 h1Q Bd2 h2 Ba5 Bh6 Rc1 Ng2 Rc2 Nc6+ Kc5 a1B b8R d4 b7 Rb1 Ra8 Qg1 b8Q h1N Ra6 Nd8+ Rc6 Bg5 Ne3+ Kf6 f5 Ke5 f6 Nf2 Qa8 Qh2 Nf5 Bf4 Ng7 Bb2 Ng3 Rc4+ Kb5 Bc3+ Ka6 Rb5 Bg8 Kd5 f7 Bb2 f8Q Ba1 Be2 d3 Bf7 d2 Bd3 Kd4 Qfh8 d1B Q8h6 Bg4 Rb8 Qd6 Ka7 Qa3 Rbc8 Re5 Kb8 Qb4+ Kc7 Qc3 Rb8 Rb5+ Kc8 Rcb4 Re2 Ra4 Bb1 Rc4 Rc2 Kd3 Qa7 Qe1 Qc5 Qc1 Qf8 Bae5 Qg8 Qb2 Ra8 Qc3 Rc5 Bc6 Rb8 Nb7 Ra8 Nd6+ Kc7 Bd7 Rf8 Be8 Kd8 Nb7+ Kc8 Nd8 Rc6 Bd7+
NnR1Q3/3B2b1/R2prQQ1/qK4N1/2rB2bp/qN1B4/1q3nnk/Qqr5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 f5 g4 h5 e4 a5 g5 d6 g6 h3 b6 h2 b5 d3 b7 d2 g7 f3 b6 Kf4 e5 Kg3 e6 a4 e7 f4 e8Q f2 Bd3 f1N Nh3 f3 Bb2 f2 Ng5 h4 Kb5 a3 c4 a2 c5 Ra4 c6 Rh6 c7 Nf6 g8Q Ne4 Bd4 Bg4 c8B Ne3 Qgg6 f1Q Bd7 Qh3 Qe5+ Kg2 Qef6 Bg7 Qc1 d1R Nd2 Qg3 Nb3 Nf2 Qb2 Rb1 Rc1 h1Q Rc8 Rc4 Qa3 Rbc1 Qa4 Na6 b8N Kh2 b7 Ng2 Qa5 Qe3 Qa3 Qd2 Qa4 Qb2 Qa5 Nb4 Na6 Nc6 Nc7 Nb8 Na8 Qd1 Qa6 Qdc2 Qa5 Qcb1 Qc3 Nc6 b8Q Qc7 Qa7 Nb8 Qe1 Qa3 Qee8 Qbb2 Rb1 a1Q Qa4 Q1a2 Ra1 Qab1 Ra2 Q2a1 Qa7 Q3b2 Ra5 Qaa3 Ra6 Rh5 Rb6 Qaa1 Qa2 Qa3 Ra6 Qa1b2 Qa1 Qd8 Qfe6 Rh8 Qgf7 Rh6 Qh5 Rf6 Qhg6 Qc7 Qe6f7 Re6 Qff6 Qca5+
nB6/R4QN1/qp1p1R2/B1q3nB/1bnR2QQ/3rb3/1N1k2b1/q1R1r1bK w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 Kf7 c4 Kf6 f4 g5 Kf2 e5 Kg2 b6 a4 e4 h5 d3 a5 e3 c5 e2 c6 e1Q h6 d2 h7 b3 a6 b2 a7 g3 c7 g4 Rh4 Qde7 Na3 b1Q Kh1 Qd3 Nf3 Nh6 Ng5 Bb7+ Qf3 d1N c8Q Qc5 Bd2 Ne3 Ne6 Qa6 Rc1 Nf7 Nc4 Ng5 Nb2 Nc4 Ba5 Bd5 Ng7 g2+ Kh2 g1B+ Kh1 g3 Be2 Rg8 h8Q Bd6 Rg4 Re8 Qh4 Re3 Qe8 Rd3 Qee4 Be3+ Qf1 Kf7 f6 Bb7 Qg2 Kg6 f7 Kf6 f5 Ke5 f8R Qd1 Rc3 Qa1 f6 Be4 f7 Kd4 Qf3 Be7 Rc1 g2+ Kh2 g1B+ Kh1 Nc6 Rf4 Re8 a8R Nd8 Ra7 Nde6 Q3g2 Nc7 Bh5 Bd6 Qff3 Na8 Qgg4 Qca3 Rf6 Bb4 Rg8 Qc3 f8B Qc2 Rh8 Kc3 Bd6 Kd2 Bb8 d6 Rg8 Bc6 Qd5 Re4 Qf7 Qc3 Rc8 Qd4 Re8 Qc5 Re5 Bb7 Rd5 Bd4 Qgg3 Re1 Qf3 Bde3 Rd4 Bc8 Qfe4 Bh3 Qeg4 Bg2+
1nn1rBQ1/K4nrp/2bQrN2/2R1p2R/R5Bb/2b2qqQ/2N2R1r/N1k5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 e5 c5 d3 Kc3 d2 g5+ Kf5 c6 h3 c7 a4 g6 a3 b6 e3 b7 Ke4 b5 h2 f5 e2 g7 Ke3 b6 e1N f6 d4+ Kc4 a2 Kb5 d3 f7 Nd7 b8N Be7 f8R Ra7 b7 Bh4 Qg4 Nf3 Na3 Ne7 g8Q Ng5 Be2 Nf7 Nf3 Qe8 Bb2 d1Q Nd4 Kd2 Qh3 Qe1 Bh5 Qg3 Nac2 Ra6 Bd1 Re6 Bg4 Qd8 Ba3 Qf3 Na6 Nb8 Nab4 Bd7+ Kc5 Qg3 c8R Bc6 Nd5 Qf3 Rc7 Nc8 Nf6 Qd7 Raf1 Qg3 Rf4 a1B Re4 Bb2 Na1 Bc3 Ndc2 Qf3 Ra4 Qg3 Rf1 h1R Rf5 Rh2 Rh5 Qf3 Bb4 Kd1 Ba3 d2 Bb4 Qd3 Ba3 Na7 Kb6 Qg6 Bc5 Kc1 Be7 d1R Rcc8 Na6 b8Q Rd7 Qd6 Nb8 Rc7 Bd5 Rc5 Bc6 Bf5 Qgg3 Bg4 Nd8 Rf7 Rc7 Bf8 Rce7 Qg7 Rg8 Qh8 Rg7 Qg8 Re8 Nd7 Qd5 Rf2 Nf7 Nf6 Nc8+ Kc7 Ne7 Kb6 Qdf3 Ka7 Nc8+
B2NRqn1/B2Bpn2/RQbr2r1/2q4K/R1r2b2/2kN1Qq1/p2N4/2N1q2b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kf6 f4 h5 c4 a5 b4 d5 g5+ Kf5 b6 e3 Kf3 d3 c5 d4 g6 h3 b5 h2 b7 d2 b6 h4 c6 h3 c7 e2 g7 e1Q Bg2 a4 Ne2 Bd7 c8B Nc6 b8Q a3 b7 d3 Qc7 Ra6 b8N Ke6 f5+ Kd5 Kg4+ Kc4 Qb6 Rh4+ Kg5 Rd4 f6 Ne5 f7 Bc6 Nd7 Qg3+ Kh5 Qe8 Rg1 h1B Nc5 h2 Bd7 Qa8 Qf1 d1Q Be3 d2 Nd3 Qc1 Qf3 d1R Bf2 Qc2 Nec1 Rg4 Nd2+ Kc3 Re1 Rc4 Re4 Qe8 Qd8 Rg1 Ba7 Rd1 Qb6 a2 Rb1 Qd8 Rb4 Qa8 Ra4 Qe8 Rd4 Rg1 Rd6 Qc8 Ndb3 Qcf2 Rf6 Qc5 Nd2 Bb5 Qf2 Qf4 Bgc6 Nh6 g8N Be4 Qc7 h1Q+ Qh4 Rg6 Ba8 Qe1 Qh3 Bh1 Qf3 Qfg3 Rb6 Bg7 f8R Bf6 Rc6 Bg5 Re6 Bf4 Rc6 Nf5 Nh6 Qe8 Nf7 Nh6 Rd6 Ng8 Nd8 Qf7 Re8 Qf8 Rd4 Raf6 Rd6 Re6 Rc6 Rd6 Rca6 Bc6 Qb6 Nf7+
1b1r4/3rpN2/RR5N/K1r1bb2/B1p1RQ1N/5q2/bBn1RQ1Q/q2k2qn w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 d4 Kg6 Kd2 Kg5 Kc3+ e3 Kb4 Kf4 b3 a5+ Ka4 c5 g5 h5 g6 h3 b6 c3 b4 c2 b5 h2 d5 h4 g7 h3 d6 Nc6 d7 Nf6 g8N Nd4 b7 Nh5 b8R Ng3 b6 Ra7 b7 Qb6 d8R Bf5 Bb5 Bg7 Qe1 Be5 Nd2 e2 Bb2 c1R Nh6 Nc2 Ndf3 Rg8 Qf1 e1B Rd2 Rd8 Nh4 Qf6 f3 Ke3 f4 Qc6 Rd4 Qf3 Re4+ Kd2 Qf2+ Kd1 Ra2 B1c3 Ra8 Bd6 b8Q Rad7 Ra6 Bce5 Bc6 Bc7 Kb5 a4 Rb6 a3 Ka5 Rd6 Ba4 R6d7 Ra1 a2 Re2 Qg2 Ngf3+ Qg1 Ng5 Bcd6 Ngf7 Bc7 Rb1 a1Q Re4 Bcd6 Ra6 Bc7+ Qb6 Bb8 Qc7 Qf1 Rg1 h1Q Rg2 Qhg1 Rh2 Nh1 Rg2 Be6 f5 h2 f6 Ba2 Qf4 Qf3 Rge2 c4 Ba3 Rc8 Rbb6 Rcd8 Bb2 Rb1 Bd4 Rb3 Bb2 Rbd3 Nd6 Rd4 f7 Rd2 f8Q Rd5+ Bb5 Rc5 Ndf7 Qb3 Qf2 Qf3 Qh8 Ng3 Qh7 h1B Qf5 Bg2 Qf4 Nh1 Qh2 Bh3 Qf4 Rc6 Ba4 Bf5 Q4h2 Bh8 Qcg3 Bhe5 Qf4 Rc5+
6bQ/1k1p4/r3Bq2/p1b5/nn1bnQ2/1RR2q1r/1Q1BKBNr/Qn2RN2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 a5 c4 f5 h4 g5 b4 d3 h5 g3 b6 g2 b5 d2+ Ke2 g4 e5 g3 c5 Ba6 b7 Nf6 c6 Ne4 e6 Qf6 h6 Kd8 h7 Kc7 Nh3 g1B e7 g2 e8Q Bfc5 Qe7 Bgd4 Qg7 g1Q Ra3 Qg3 Rb3 Ra7 Qe1 d1N Bd2 Nb2 Qd1 Kb6 c7 Na4 c8R Nc6 b8B Nb4 Qe1 Ra8 Ba7+ Kb7 Bb6 Ra7 Qc1 Ra8 Qb2 Ra7 Bg2 Ra8 Re1 f3+ Kf1 f2 Nf4 Ra7 Ke2 f1R Bh3 Rf3 Ng2 f4 Be6 Ra8 Ba7 Rd3 b6 f3+ Kd1 f2 Ke2 f1N Rc6 Rhg8 h8Q Bc4 Qa1 Rgb8 Qgh6 Re8 Qf4 Re7 Rc8 Rh7 Rc6 Rh2 Rc8 Ka6 b7 Bd5 b8Q Bc4 Bg4 Bg8 Be6 Rf3 Qbe5 Kb7 Bb6 Ra6 Ba7 Bg1 Qeb2 Bgd4 Bb6 Bd6 Rcc3 B6c5 Be3 Nfd2 Bf2 Nc4 Nd2 Na3 Nf1 Nb1 Bd8 Qgg5 Be7 Rfh3 Bf8 Qg3 Bh6 Qd8 Qfe5 Qe7 Bd2 Qf6 Qf4 Qf3+
R5qQ/3p2br/2B3pR/2Bn1nrr/2b2k2/3r1n2/1Nq3BR/qNKN1Q1R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 h4 Ke5 c4 f5 b4 a5 c5 g6 h5 a4 c6 g3 c7 a3 h6 a2 b6 g2 h7 f3 b5 d3 b7 f4 b6 f2 Nh3 g1R Rh2 f3 Bg2 f1Q Nf2 Ra5 Ba3 Kf4 e5 Nc6 b8R Nf6 b7 Ne7 e6 Rh5 Kc1 Nfd5 Bc5 Qe2 Ra8 Nf5 b8Q Ba6 e7 Bg7 e8N Bc4 Nd6 Qg8 c8B Qe4 Qf1 d2+ Kd1 Qd3 Bb7 Qc3 Bc6 Qd3 Nfe4 f2 Nec3 Qe2+ Kc2 Qd3+ Kb2 d1R Qc8 Rd2+ Kc1 Qe4 Nd1 Rd3 Nb2 Qe2 Nb5 Qe4 N5c3 Qe2 Bh3 Rgg5 Ncd1 Qe4 Bg2 Qe2 Qg1 f1N Qd8 Nd2 Qf1+ Nf3 Qf6 Qge6 Qc3 Rd8 h8R Qg8 Rh6 Rf8 Na3 Rf7 Rb1 a1Q Qf6 Bf8 Qc3 Rh7 Qh8 Qa2 Ra1 Bg7 Nb1 Qe1 Re8 Qb3 Raa8 Qa5 Re1 Qa1 Qe2 Ng3 Reh1 Nf5 Qf1 Qc2+
1q2Q2r/1Np2n1R/2n1B1Q1/2rn2N1/1b2q1bn/RB1r3q/Q1p1K3/B2NN2k w - - 0 1 illegal: No possible last move
2r1b3/p2Q3q/2RBK2Q/r1RQp2n/R4B1q/2bqqn1B/1N4R1/1k2Nbn1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 h5 c4 h3 b6 d3 Kc3 h4 Kd4 e3 f5 d2 b7 e2 c5 e1Q b5 h2 c6 h3 b6 Bg7 c7 Nd7 b8B Rh5 b7 Ne5 Bc4 Bd7 c8R Nf3+ Kc5 d4 Kd5 d3 Rc5 Qe3 Ra4 Be8+ Bd6 Rc8 b8R Kg5 Rbb4 Bc3 f6 Kg6+ g5 Kf5 f7 Qc7 Qe1 d1B g6 d2 g7 Be2 Qd1 Bf1 Rb6 Qb7+ Rbc6 Qb3 Qe2 d1N Qd2 Nf2 Na3 Qb1 Qd4 Qbd3 Ba6 Rg5 Nc4 Rh5 Nb2 Rg5 Be5 e6+ Kd6 Nf6 g8Q Nh5 Bf4+ e5 Ke7 Rg6 f8Q+ Rf6 Qh6 Rd6 Ne2 Rd5 Rg1 h1Q Rg2 h2 Ng1 Nh3 Bc4 Rdd8 Qdd6 Ke4 Ke6 Rd7 Qe7 Rd5 Qd7 Kd4 Ne2+ Ke4 Nd4 Nhg1 Nc2 Rb8 Rc7 Rc8 R5c6 Ra5 Ne1 Bb4 Bd5+ Kd4 Bc4+ Kc3 Ba6+ Kb3 Rc5 Bc3 R7c6 Qde4 Bd3 Q4d4 Bf5 Qdd3 Rb4+ Ka2 Ra4+ Kb1 Bd2 Bd4 Bb4 Bc3 Bh3 Qh7 Rg6 Qg2 Rg4 Qgc2 Rg2 h1Q Qgf7 Qh2 Qd5 Qcd3 Qfd7 Nd2 Rb5 Ndf3 Bd6 Qg3 Rbc5 Qh4
Nnqbn1q1/p2bB1QQ/1RNn4/p3r1b1/6NN/k2KQ3/B4r1R/1Rq1q3 w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 b6 Qb3 bxa5 Qc2 Qg5 Qd1 Qd8 e4 Kd7 Ke2 Kd6 d4 c5 b4 f5 g4 h5 e5+ Ke7 g5 c4 b5 h3 b6 h2 g6 h4 e6 Kd6 e7 h3 e8Q c3 g7 c2 b7 f3+ Kd3 f2 Na3 f4 Nf3 Rh5 Rb1 Bd7 Qe3 Qc8 Nh4 Be7 Qg4 Nf6 g8Q f3 Q4g7 Ne8 Q8h7 Bd8 Be2 f1N Nc4+ Kc7 d6+ Kc6 Nb6 f2 Bd2 c1B Bb4 Kb5 d5 Nd2 Bd1 Rg5 Bb3 Ne4 Ba2 f1Q+ Kd4 Qg1 Kd3 Na6 b8R Re5 Rb7 Rb8 Na8+ Ka4 Rb6 Rb7 Bc5 Nb8 Bb4 Rc7 Ba3 Rc2 Bc5 Bc6 d7 Rf2 Be7 Qg6 d6 Ka3 Qe2 Bg5 Qe3 Bc7 d8N Bd7 Nf7 Bd8 Nh6 Qf7 Ng4 Qg8 Rhe1 h1Q Re2 h2 Rc2 Qc1 Rcb2 Be6 d7+ N4d6 Rc2 h1Q Rd2 Bc7 d8N Qhe1 Nc6 Bd7 Rdb2 Bd8 Rd2 Rff5 Rh2 Rf2
RN2kN2/pN4Q1/3p4/qr4nq/2n2n1B/4qR1q/rbr1BNBK/1QQb4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 h5 c4 f5 b4 d3 e4 d6 g4 d2 Kg2 h3+ Kh2 f3 g5 f4 b6 f2 g6 f3 b7 h4 c5 Ne7 g7 Bg4 g8Q Bc8 c6 Nd5 c7 Rh5 b5 Nc6 b8N Ne5 b6 Bg4 c8Q Nc4 b7 Nf4 Na3 Rb5 Be2 f1R e5 f2 e6 Re1 e7 f1Q Qf5 Qf3 Nd7 Rc8 b8N Qa5 Qg7 Qe3 Qb1 Bf3 Qdc2 d1Q Bb2 Qd5 Bf6 Qh5 Qcc1 Rd1 Ra2 Rd2 Rc2 Bg4 Rc3 Ra2 Rb3 Qec5 Rf3 Qe3 Qh6 Bg7 Nf8 Rcc5 Bg5 Bb2 Qg7 Bf5 Bf6 Bc2 Bg5 Bd1 Bf6 Nd2 Bg5 Rc2 Nc4 Qa4 Na5 Nc4 Nb7 Qa5 Rf1 Ne5 Nf3 Nc4 Ne1 Qac3 Nd3 Qcd2 Rhg1 Qa5 Kh1 h2 Rf3 Ng6 Kg2 h1N Kh2 h3 Nf2 Ng3 Bh4 Ne4 Rg5 Nf4 Rc5 Qd8 Rc8 Ng5 Nbd7 Rc3 Ra8 Rc2 Nb8 Qa5 Qc3 Kf7 e8B+ Ke7 Bc6 Kf7 Kg3 h2 Be4 h1Q Qg7+ Ke8 Bd5 Qf1 Kh2 Qg6 Rh3 Qh5 Bg2 Qfe1 Rg3 Q1c3 Rf3 Qcd3 Qh7 Qf5 Qg7 Qh3+
7q/pnpqB1Q1/b6Q/rkN2q1B/2b4n/R1Q3Nr/2B1qNn1/2bB1RK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 h5 b4 f5 g4 f3 d4 h3 d5 c3 g5 h2 e5 f4 d6 c2 e6+ Ke8 b6 h4 b5 h3 e7 Kd7 g6 Rh7 b7 Na6 b8Q Nc5 b6 Kc6 e8B+ Qd7 g7 Ba6 b7 Ne7 g8B Ng6 Be2 Bh6 Qd4 Nh4 Ba3 c1Q Nc3 Qc2 Nd1 Qf5 Qc3 Rh8 Kf1 f2 Bh7 Kb6 Qc8 Rb8 Bh5 Bc4 Qf8 Kb5 Qfg7 Rbe8 b8N Nb7 Nb2 Re5 Nd3 Rc5 Bd1 Rd5 Ke2 f1B+ Kf2 f3 Ne2 Bc1 Ng3 Ng2 Rg1 h1Q Na6 h2 Nac5 Be2 Rf1 Nh4 Ke1 Qg2 Nf2 h1Q Bb4 Bed3 Ra3 Qgh2 Ng4 Qb2 B7g6 Be2 Kf2 Qh3 Kg1 Bed3 Qh6 Qe2 Qcg7 Re5 Bd2 Rh7 Bg5 Rh8 Be7 Rd5 Nh2 f2+ Kh1 Kb6 Qf4 Qf6 Nb3 Bb1 Rg1 f1N Bf3 Bb5 Qh7 Qd8 d7 Ba6 Bgc2 Ra5 Nc5 Qhf5 Ng4 Kb5 Nf2 Ne3 Rf1 Ng6 Kg1 Ng2 Qf7 Rh3 Qh6 Ba2 Bh5 Qd6 Qfg7 Qh8 d8Q N6h4 Qdg8 Qdd5 Qc3 Bc4 Qgg7 Qdd7
5k1n/KbBR1bn1/Q1r3n1/N2p4/p5Br/b2QQNb1/1qR2bb1/N1B4B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 a5 c4 g3 h4 g2 c5 g4 h5 a4 c6 g3 b6 f3 b7 f2 e5 f4 b5 f3 e6 Nd7 b8N Ndf6 c7 Nh6 e7 Nfg4 b6 Nf7 b7 Ra6 h6 Rc6 h7 Be6 c8B Qb6 Ra2 Qb2 Be2 f1B Na3 f2 Nf3 g1B Nc2 g2 Na1 Bh2 Qc2 g1B Qb3 Ra6 Nc6 Bg2 b8B f1B Bc7 Bf2 Na5 Rc6 Qb7 Bhg3 Qa6 Qb4 Rc2 Qb2 Kd2 d3 Rh4 Rg8 h8Q Nge5 Rh7 Ng6 Qc3 Nfh8 Rg7 Bf7 Bg4 Be1+ Ke3 d2 Kd4 d1N Bd3 Ne3 Be4 Bef2 Rh7 Re6 Kc5 Nf5+ Qe3 Ng7 Qd4 Bb5 Qe3 Bc6 Qd4 Qa3+ Kb6 Bb7+ Ka7 Rb6 Qdd3 Qb2 Rh6 Nh4 Rd6 N4g6 Rd7 Rc6+ Nd4 Ne6 Bef3 Rg7 Be4 Rh7 Bef3 Rh4 Be4 Bh3 Bg2 Ng7 Bh1 Rb6 Nf3 Bg2 Qd2 Rc6+ Qd4 Be6 Qe3 Kf7 e8Q+ Kg8 Qe7 Bf7 Qe4 Ba3 Qed3 Kf8
1B2nQ2/1Q2pRQ1/1b1rnn2/2rBN1p1/4b2n/R1n3N1/r3qn1k/1RQ1K1N1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 b4 Kg6 h4 Kh5 c4 d5 c5 a5 b6 g5 b7 d3 b5 a4 c6 a3 b6 d2+ Kf2 e3+ Ke2 a2 f5 d4 c7 g3 f6 Kg4 f7 g2 h5 Kg3 h6 Bg7 f8Q Na6 b8R Bf5 c8Q Be4 h7 Nf6 b7 Nc7 Rh5 Ra5 Ra8 Rc5 b8N Nce8 Nh3 Kh2 Qc2 g1N+ Kd1 Nf3 Qc6 Nh4 Nc3 Qd5 Ra4 Qe6 Rb1 a1R Ne2 Ra2 Ng3 Rg8 Ke2 d1N h8Q d3+ Ke1+ e2 Ng1 Nc3 Qb7 Qa6 Nc6 d2+ Kf2 d1N+ Ke1 Nf2 Bg2 Qd3 Ne5 Qe3 Qh6 Bh8 Bd2 Rg6 Ra3 Qf3 Bf4 Qg4 Kd2 e1N Qhg7 Ned3 Rh7 Rh6 Qg6 Qf3 Rf7 Qh5 Qgg7 Qg4 Be3 Nf4 Ke1 Ne6 Bf4 Qf3 Nd7 Qg4 Bb8 Qf3 Ne5 Rg6 Kd2 Qe2+ Kc1 Nh7 Nf5 Nf4 Ng3 Bd5 Nd3 Rb5 Qh6 Bd4 Ne5 Rd6 Qhg7 Bb6 Bf3 Nhf6 Bh1 Qh5 Kd2 Rc5 Ke1 Ne6 Qc1 Bc6 Bd5 Qf3 Bb3 Be4 Bd5 Qe2+
1N2RQbn/n4b2/1k1Nr3/4r1bR/4b2K/qp4N1/QB1p1qRb/2RB1b1B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 h5 a4 b5 g4 d5 f4 Kd7 Kf2 Kc7 c5 e5 g5 e4 c6 d3 a5 b3 g6 h3 Kg3 h2 g7 b4 f6 e3 f5 b2 f7 b3 f6 h4+ Kf3 h3 Kg3 d4 a6 e2 a7 e1B+ Kf4 d2 Kg5 d3 Ne2 Rh6 Nec3 Kb6 c7 Bg3 Qg4 d1B Bd2 Nc6 Ne2 Qd6 Qc4 Nge7 g8R Be6 c8R Qa3 Qc2 Ng6 Bc3 d2 Re8 Be7 f8Q Nh8 Bg2 Be5 Bf3 Bf7 Ng3 Be2 Rg7 Bf1 Bd1 Rd8 a8B Rd5 Bb7 Rg6+ Kh4 Na7 Bd4+ Rc5 Nc3 b1B Qa2 Be4 Nb5 Bf4 Bc3 Re5 Rc1 Bd6 Bb2 Bg5+ Kg4 Bg8 f7 Rge6 Ba8 Bc7 Nd6 Bb8 Qe7 Bg6 f8N B6f7 Nd7+ Ka6 Rg1 h1B Rh7 h2 Qf8 Be4 Rg2 h1Q Rh5 Qg1 Bd5 Bc7 Nb8+ Kb6 Kh3 Qf2 Bc6 Bh6 Kh4 Bf4 Bd5 Bg5+ Kg4 Rf6 Ndf5 Ka5 Ne2 Kb6 Rgh2 Bc2 Bh1 Rfe6 Rg2 Rd5 Kh3 Bcf4 Nd6 Bh2 Ng3 Rde5 Kg4 Be4 Kh3 Be3 Kh4 Bg5+
r3krn1/2QR4/1nN1rR2/1rp1B1pn/1B1qb3/1K2N1R1/5b1Q/n2BrR1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 c5 e4 a5 h4 g5 d4 f5 Kd2 g3 Kc3 a4 d5 g2 h5 a3 h6 a2 d6 f3 e5 f2 e6 f4 e7 f3 b6 Nd7 b7 Rb8 b5 Ndf6 b6 Qc7 d7+ Kf7 d8R Qf4 e8R Bg4 h7 Qe4 Be2 f1R Bd2 f2 Rh3 Nh5 Rg3 Bd6 Na3 Bf3 Re6 Qd4+ Kc2 c3 Rf6+ Ke7 Nc4 Be4+ Kb3 c2 Bb4 c1R Rd7+ Ke8 Nf3 g1R Nfe5 Rh1 Qc2 Rce1 Nc6 Bf4 Qb2 Be3 Bd1 Ra8 b8B Rfg1 b7 f1N Rg2 Bf2 Be5 Ne3 Rg3 Nd5 Ne3 Nb6 Rc1 Re2 Rb1 Rge1 b8Q+ Nc8 Qc7 Nb6 Qc2 Rhf1 Qc4 Ra5 Qd5 Rb5 Ra1 Bb1 Qh1 Be4 Rb1 a1N+ Ka3 Nh6 Qh2 Rf8 h8Q Ng8 Qh7 Nf4 Q7h3 Nh5 Q3g2 Rg1 Qgh1 Nc2+ Kb3 Bg2 Nc4 Ref1 Bd6 Re5 Be2 Be4 Ne3 Re6 Be5 Rd1 Rb2 Ra1 Rb1 Ra8 Rc1 Re1 Bg4 Re2 Rf1 Re1 Bd1 Na1#
B5Nr/1Q3q1N/3Qb1kp/2Q2b2/r3b2b/1KB1b1B1/2pb2Bq/3nnRRR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 f5 g4 Kf7 e4 c5 d4 a5 Kd2 a4 Kc2 f3 b6 h6 b7 h3 d5 c3 g5 h2 d6 c4 b5 f2 e5 a3 b6 a2 e6+ Kg6 d7 f4 e7 f3 e8R Na6 b8Q Ne7 b7 Nf5 Qf4 Be7 b8Q Nc5 Bg2 f1B Nd2 f2 Qe3 Ra4 Qc7 Nd3 Qb7 Qc7 d8B Be6 Bb2 Qg3 Rb1 a1B Rf8 Qh3 Bc7 Ne1+ Kc1 c2 Bc3 Bb4 Bg3 Bd3 Qc5 f1Q Ne4 Ne3 Nf6 Bdf5 Qdd6 Nd1 Nf3 Qh5 Rg1 h1B Ng8 Qh2 Kd2 Nd3 Rf7 c1B+ Kc2 Be3 Rc1 Bb2 Ra1 Bbc1 Rf8 Bcd2 Rb1 Kh5 g6 Ba3 g7 Kg6 Ng5 Qf3 Bd4 c3 Nh7 Rc4 Kb3 c2 Bc3 Ne1 Rf7 Bd3 Rf4 Bf5 Ra1 Qd5 Rff1 Bac1 Ngf6 Bg5 g8B Bde3 Rb1 Bcd2 Rc1 Bh4 Ra1 Bd7 Be6 Qf3 Bd5 Bde6 Ng8 Qh5 Qbc7 Qf3 Ba8 Qb7+ Q7b6 Qe7 Qb7 Qf7 Bh3 Bc6 Bg2 Bce4 Rf3 Nd3 Rh1 N1f2 Rae1 Nd1 Reg1 Ne1 Rff1 Ra4+
1R4r1/BB1Nrr2/K3nQp1/1b1r1n1N/1p1Nn3/RQB2R2/2Rb4/r1q3nk w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kd3 f5 Kc4 c5 Kb5 c4 e4 g6 a4 f3 h4 f4 h5 g3 h6 b3 a5 f2 a6 g2 a7 f3 h7 c3 Rh2 c2 Ra3 b2 Be3 c1R Qb3 Na6 Ne2 g1N Ng3 Nf6 Nc3 b1R Bg2 f1R Nce2 f2 Nh5 Rg8 h8B Qc7 Bf3 Rb8 a8N Bh6 Nb6 Ra1 Nd7 Rcd1 Bg7 Qc1 e5+ Ke7 e6 Kd6 e7 Nc7+ Kb6 Ne4 e8R Ne6 Rf8 Rd3 Ka7 b5 Rg2 Rb7+ Ka6 b4 Rf4 Kc7 d6+ Kc6 Rh2 Rdd1 Bg2 Rfe1 Rf3 f1N Rfh3 Nc5+ Ka5 Qc4 Nb8+ Kd5 d7 Ng3 d8R+ Bd7 Nc6 Rf1 Ra8 Rf7 Ne5 Nf5 Rb8 Ne6 Bh1 Bc6 Rg2 N4c5 Rhg3 Ke4 d5 Na4 d6 Nd8 d7 Bb5 Ba7 Ne6 d8Q Nac5 Qg5 Rbe7 Nd7 Qc1 Bc3 Rd6 Qf6 Bg5 Nd4 Bf4 Nf3 Rd4 Rc2 Bd2 Rh3 Ke3 Kb6 Kf2 Ka5 Rd6 Nd4 Kf1 Bb7 Rd5 Rf3+ Kg2 Kb6 Ne4 Ka5 Kh1 Kb6 Ba4 Ka6 Bb5+
3KN1n1/1kr5/1rrp4/3B3R/N2nqr1Q/B1pR4/Bn1QRrB1/bn1Q3b w - - 0 1 illegal: No proof kernel
QRB1N2b/N1q1r2p/B1r1N2b/1bnRBK2/rr1b1Q2/1rk5/R6p/nB6 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 e5 c5 d3 Ke3 d2 b6 a4 c6 h3 c7 h2 b5 a3 f5 a2 b7 d4+ Ke2 d3+ Ke3 Nc6 b8Q Na5 b6 Nb3 b7 Bd7 c8B Ra4 Qc2 d1R Qcc7 d2 Ne2 Bb5 Nf4 Bh6 Bb2 Rc1 Nc3 d1R Qa8 Rdd4 b8R Rdb4 Bc4 Rb1 Rd1 Qe7 Bf1 Qd8 Qc4 Qc7 Bd3 Rc1 Bb1 Rc2 Rd5 Rc1 Ke2 e3 Kd3 e2 Ke4 e1B Ne6 Bf2 Ng7 Bd4 Qf1 Rc2 Qf4 Rc1 Ne2 Rc6 Nc3 Ne7 Ba6 Ng6 Bc8 Nf8 g5+ Ke7 g6 Ne6 Ne8 Nec5+ Kf3 e4+ Kg4 e3 g7 e2 g8B e1R f6+ Kf8 f7 Ke7 f8N Re5 Bge6 Rg8+ Kh4 Rg3 Ba6 Re2 Bec8 Ree3 Nd7 Ke6 Kh5 Rg7 Kh4 Re7 Kg4 Bc4 Nb5 Bh8 Na7 Bb5 Rd2 Bd4 Nf8+ Kd5 Ne6 Kc4 Kf5 Rc3 Be4 Rf3 Rad1 a1B Bb1 Rd3 Bc3 Bb2 Re2 Na1 Rdd2 Rg3 Re5 Kb3 Rd5 Bh8 Be5 Bd4 Rf2 Kc4 Rg2 Rgb3 Ra2 Kc3
1KB1Q2q/B4rbp/2Q5/QN4B1/3R1b1r/2N2rQ1/p1kbbn2/r2nbR1R w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 a4 b4 c3 g4 e5+ Kc4 c5 d4 c2 d5 e3 b6 e4 Kb5 a3 g5 e2 g6 e1R b7 a2 g7 e3 f5 Ke5 f6 Ke4 d6 c4 f7 e2 d7 c3 Rh2 h3 Bg5 c1B Na3 c2 Qd6 Na6 Qg3 Rd1 b8B Bd2 Kc6 Ra7 b5 Nc7 b6 Ba6 b7 Nf6 g8Q Ng4 Qg6+ Kd4 Bg2 Bg7 f8Q Nf2 Qff5 Rf8 Qa5 Nb5 Be4 Rc1 Bf5 Nc3 Be6 Qe8 Kc7 Rf3 Bf5 Bd3 Nb5+ Kc4 d8R Kb3 Bc8 Qh8 Rd4 Rb1 Rg2 h2 Q6d6 h1R Rh2 Bf4 Rh4 c1B Rh5 e1B Ne2 Bcd2 Rh4 Kc2 Rh3 Ncd1 Nec3 Ne3 Rh2 Be2 Rh5 Rh4 Rh6 Rg4 Rh1 Ra6 Ba7 Rh4 b8Q Rd1 Qb7 Rc1 Qe5 Rf6 Rb1 Rf7+ Kb8 Rd1 Qc6 Rc1 Rb3 Ra1 Rbb4 Ne4 Rb1 Bf2 Rbf1 Bfe1 Qaa6 Nd1 Qa5 Nd6 Qee8 Ne4+ Qd6 Nef2 Qdc7 Bfe3 Qcc6 Bf4+
1Qb1nBnk/N2b1nRp/Q1KN4/r4b2/1p2B1R1/2Q2q1n/4B2b/n1rN2N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f5 Kf3 Kf7 d4 Kg7 a4 c5 g4 b5 e4 c4 e5 b3 d6 b4 g5 h3 e6 b2 d5 c3 a5 c2 e7 h2 a6 Nc6 Nc3 b1B d7 Ra7 e8B Bd6 g6 Qf6 Qd3 Nd8 Nd1 Nf7 d8N Rc7 Be3 c1N a7 Nb3 a8Q Rc1 Ra7 Na1 Nb7 Bb8 d6 Be6 Kf2 f3 d7 f4 Qc3 Bbf5 d8N Bc7 Be2 Bd6 Kf1 f2 Kg2 f1B+ Kf3 B1h3 Bc5 Bc8 Nc6 Bfe6 Ke4 f3 Nd4 f2 Bc6 f1N Nb5 Ne3 Bd5 Bf4 N7d6 Nc4 Re7 Bg3 Qa6 Bhg4 Na7 Bgf5+ Kf3 Be5 Be4 Bf4 Nh3 Be5 Rg1 h1N Rg4 Bh2 Ng1 Nf2 Rc7 Nh3 Rd7 Na3 Rc7 Nb5 Re7 Kh6 g7 Nc7 Ke3 Ne8 Kd3 Qg5 Kd4 Qf4 Rd7 Qf3 Rb7 Bed7 Kd5 Bde6+ Kc6 Ngf6 Rf4 Kg6 g8Q+ Kh6 Qg4 Ng8 Qh4+ Kg6 Qd8 Kh6 Qc7 Kg6 Qb8 Kh6 Qe3 Kg7 Rg4+ Ng5 Nc4 Bcd7+ Kb6 Nc7 Nc8 Nf6 Qba7 Nh6 Qaa3 Rf8 Qd4 Kh8 Qdc3 Nh3 Q3a4 Rd8 Qb8 Ne8 Na7 Bc8 Qa6 Rd5 Rbg7 Nfg8 Bf8 Ra5 Nd6 Nf7 Kc6 Bed7+
1kn2N1N/1pR2Q2/1q3N1q/4B2B/QnnK1R1n/r3QRn1/p1N4r/n1b2b2 w - - 0 1 illegal: No proof kernel
2Rn3q/rQKr3B/2nn3r/1N1N1R2/4Qb1b/1B2R1Br/1n3pp1/2kB2Qb w - - 0 1 illegal: No possible last move, all moves rejected
1Rq3N1/1B1B1Kr1/n1bk4/r1r3Np/1nQ1b1B1/bQR1n3/1Qp4b/B1r2R2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 e4 c5 g4 h3 b4 a4 d4 c3 b6 c2 b5 h2 b7 f3 g5 a3 d5 f4 d6 c4 g6 c3 g7 a2 b6 f2 Ba6 f1B Nf3 Nf6 g8B Nd5 Ng5 f3 Nd2 f2 Be6+ Kc6 d7 Be2 Bg4 f1N Ke6 Rh7 e5 Bf3 Nde4 Be7 Bb2 c1R Nf6 Nfe3 Ng8 Rh6+ Kf7 Be4 e6 Ba3 e7 Nb4 e8B Rg6 Rf1 h1R Qb3 Kd6 Rf3 Rc2 Raf1 a1B Rh3 Qc7 Rg3 Qc6 d8Q+ Bd7 Qc8 Qc5 Rh3 Bdc6 Bed7 Rc1 Rhf3 c2 Bh8 Be5 Bf6 Bh2 Ba1 Rg1 Rh3 Qc3 Rg3 Ba4 Qcc4 Rg2 Qb2 Rd2 Rgf3 Rd5 Rg3 Rc5 Qbb3 N8c6 b8R Qh8 Bb7 Raa5 Rgf3 Na6 Qb2 Ncb4 Rg3 Ng2 Rc3 Bac6 Re8 Na2 Nh6 Nh4 Ba8 Bb4 b7 Nf5 Rc8 Qd8 Ng8 Ne3 b8Q+ Qc7 Rf8 Ba3 Q8b3 N2b4 Rb8 Qc8 Bb7 Rg7+
2Qn1N2/Q3KQpB/6r1/4rpbn/b1qNn3/Rr5R/r1b5/bRBkB1B1 w - - 0 1 illegal: No possible last move
2Q1NKR1/1qQ2RNb/2n3B1/n7/k1rQ2bp/2R1q1b1/p1b1N1r1/R1q1B2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 h5 e4 a5 b4 f5 c4 f3 b6 Kc6 c5 Kb5 b7 f4 e5 h3 g5 f2 g6 h4 c6 a4 g7 h2 c7 f3 e6 a3 e7 a2 e8N Bf5+ Kd2+ d3 Kc3 Ne7 Kd4 Bh7 Ke5 d4 Ke6 Ra4 Kf7 Qd7 c8R Rg8 Bd2 Nbc6 b8Q+ Qb7 Qc7 Na5 Be1 Nec6 Ne2 d2 Ng3+ d3 Nf5 Bd6 Be2 Bg3 Rf1 h1Q Nc3+ Kc4 b5 Kb4 b6 Ka3 Qc2 d1B Qd2 Bc2 Qd1 d2 Bd3 Kb3 Ne2 Rc4 Be4 Ka4 Bd3 Qa7 b7 Qe3 b8Q Qg2 Qb2 Qh1 Qdc1 d1B Qd4 Qg2 Ne7 Qh1 Bg6 Qg2 Nf5 Qh1 Rg1 f1Q Rg2 Qfg1 Rf2 Qb3 Rf1 Qge3 Rf2 Qb7 Rf1 Rh8 g8R f2 Nfg7 Qh6 Kf8 Qe3 Ng1 Bg4 Ne2 Bd7 Rg1 Bg4 Rg2 f1Q+ Rf2 Qfg2 Rf7 Qgg1 Qcb2 Qc1 Qbc3 Qge3 Rb8 Qa6 Rb3 Qb7 Qc8 Rb4 Qcc5 Rc4 Rc3 Nb8 Ne6 Bh5 Bd3 Bh2 Q5c7 Nbc6 Bf5 B7g6 Be4 Rh7 Re7 Rg7 Rf7 Bh7 Bf5 Rg2 Bg6 Bg4 N6g7 Bg3
1b1nb1Rr/k3B1Rb/2Br1qN1/qnR1Q3/2R3p1/n1Q4n/4K2p/1BN1Qb2 w - - 0 1 illegal: No proof kernel
3r1BqQ/b1Rrbr2/R4qN1/3Q4/R2p2Bb/1bK4n/Qr3N1p/1N3kNn w - - 0 1 illegal: No possible last move, all moves rejected
1BB3R1/1N1q2Q1/6bK/n3BNp1/1Rp2QNn/Rrr1b3/r3N2q/2bkrb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 b4 a5 d5 Ke5 d6 g5 h5 f3 Kg3 c3 h6 c4 b6 c2 b7 a4 d7 a3 h7 f2 b5 a2 b6 Bb4 Qd2 Nc6 b8R Ra3+ Nc3 Bc5 b7 Na5 Ne2 Ne7 Bb2 c1B Bh3 f1R Nd4 Rb3 Rb1 Qc7 d8N a1R Rg1 Rf8 h8Q+ Rf6 Rg2 Qd7 Qg7 Ra2 Qe3 Bb6 Nce2 Ng6 Ra8 Nh4 b8B+ Qc7 Qf3 Re1 Nb7 Be6 Ba1 Bf7 Rf2 Rc3 Rb4 Bg6 Qe3 Rb3 Rf3 Qd6 Ba7 Qc7 Rg8 Rc3 Bb8 f4+ Kh2 Qd6 Nf5 Bc5 Rg3 f3 Bb2 f2 Qf4+ Ke6 e5 Kd5 e6 f1B e7 B5e3 e8N Qd7 Rf3 Rb6 Kg3 Rb5 Qc7 Ke4 Nf6+ Kd3 Qf4 Kd2 Ba1 Rcc2 Bb2 Kd1 B2e5 Bb6 Ra3 Bbe3 Bg2 Rc3 Bd5 Rb6 Be6 Qc7 Bc8 Qd7 Rba4 Rbb3 Rb4 Ng2 Kh2 g3+ Kh3 Nh4+ Kg4 Bh7 Kh5 g2 Ng4 g1Q Kh6 Bg6 Qf6 Qg3 Qg7 Qh2
2B5/nRbbK1r1/2b1RBQ1/p3Q3/nnQN1N2/N3R1r1/1R2b1pn/3q2qk w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 c5 a5 h5 g3+ Kf3 d3 b5 g4+ Kg2 d4 c6 d2 c7 d3 b7 Nc6 b8Q Bd6 h6 Bd7 c8Q Bc7 h7 Nb4 b6 Ne7 b7 Rg8 h8N Nec6 Ne2 Na7 Qc2 d1N Rh3 d2 Ra2 Nb2 Na3 d1B Nd4 Na4 Ba6 Be2 Rb2 Beb5 Qc4 Bbc6 Bd2 Rg5 Bc3 Rg6 Qg8 Rg5 Qg6 f3+ Kf1 Kf4 e5 g2+ Kf2 Ke4 Kg3 g1Q+ Kh4 g3 e6 f2 e7 f1B e8R+ Kf4 Ree2 g2 Re6 Be2 Rhe3 Rg4+ Kh5 Rg3+ Kh6 Qg5+ Kg7 Qh5 Kf8 Qhh1 Qf7 Kg4 Qg7+ Kh3 Qg6 Kh2 Ke7 f4 Qcg8 f3 Q8f7 Bf4 Qe5 f2 b8R f1N Rb6 Rg8 Bc8 Nb5 Rb7 Na7 Qeg7 Bc7 Qe5 Qf2 Qff4 Qhg1 Qfe4 Qf3 Qd3 Kh1 Qc4 Na6 Qg4 Nb4 Ng6 Nh2 Nf4 Qff1 Qg6 Qd1 Be1 Rg4 Bh4 Rg3 Bf6 Rg7+
1Qq1RK2/q1n5/4r1p1/q1rNq1Q1/1b1RBn1B/5RNp/4b2n/k1n1N1QQ w - - 0 1 illegal: No proof kernel
4RB1q/NKq1QbnR/3q1pnB/3r3k/1B1q2r1/QB5n/pbN4Q/R1n5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 b4 a5 e4 f6 g4 Kf7 c4 Kg6 b6 h3 g5 h2 b7 a4 c5 h4 b5 a3 c6 a2 e5 h3 e6 f3 c7 f2 b6 Na6 b8B Rh4 b7 Ba3 e7 Bb2 e8R Rg4 Bg2 f1N Qe2 Ng3 Na3 Nh5 Qe7 Ng7 Nf3 Kh5 g6 Be6 c8Q Bf7 Qc2 Qc7 Bh6 Ra7 Ne1 Nc5+ Ke2 d3+ Ke3 d2 Nb5 Ra6 Na7 d1Q Qc3 Rd6 Nc2 Nd3 Qa3 Rd7 Bf1 Nc1 Bc4 Rd8 Bb3 Qd4+ Kf3 Qc8 Bd6 Qc7 b8B Rd7 Rg1 h1N Bb4 h2 Rf1 Nf2 Rh1 Qc8 Bc7 Nh3 Bcd6 Qc7 Bdc5 Qg1 Bd6 d4 Bdc5 d3 Bd6 Nf4 Ke4 d2 Bdc5 d1Q Bd6 Nge6 g7 Qg3 Bdc5 Qdg1 Bd6 Nh3+ Kd5 Q1f2 Re1 h1Q+ Re4 Qa5+ Kc6 Qd4 Bdc5 Rd6+ Kb7 Rd5 Re1 Qhh2 Rh1 Qac7+ Ka6 Kh4 Be3 Re4 Qd8 Nhg5 Bf8 Ne7 g8Q Qgh3 Qg6 Ng7 Qh7+ Kg4 Qh8 Ng6 Qe7 Qh7 Bed2 Qg8 Qh6 Qh8 Be3 Qcc5 Kb7 Qhd6 Qh2 Rf4 Qf2 Qcc3 Rh6 Nh3 Rh7 Re4 Bh6 Kh5 Qe2+ Rg4 Qh2 Qcc7+
BQr1r1b1/4R1nn/b1RNp3/q4QK1/1nn2BB1/4bN2/3BQ1pb/1Rq4k w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Ke6 h4 Kd5 b4 a5 h5 g5 b6 d3+ Ke3 g3 b7 d2 h6 g4 b5 g2 h7 g3 c3 a4 b6 a3 f5 a2 Kf4 e3 f6 e2 f7 e1Q Nf3 g1B Qa4 d1N Qa7 Ne3 Rh3 Nc4 Nbd2 Bh2 Kf5 Nf6 Kg6 Nh5 Qa3 Ng7 Rb1 a1N Rh6 Nc2 Bg2 Nb4 Qa2 d6 Kg5 Nd7 b8Q Nf6 b7 Qa5 Qc2 Rg8 h8R Nh7+ Kh4 Qh1 Ne4 Qf1 Bf4 Qc1 Qe2 Be6 Qc8 Rb8 Qd7 Re8 b8B Rc8 Bd2 Re8 Qa7 Bc8 Bc7 Ba6 Qb8 Rc8 Nfg5 Ke5 Nf3+ Kf5 Re6 d5 Bcf4 d4 Rc6 d3 Bh1 Nh5 Bg2 Bh6 Bh1 Rge8 f8Q+ N7f6 Rh7 Ng7 Bde3 d2 Nd6+ Kg6 Bg2 d1B Bd2 Bb3 Bh1 Ne5 Bg2 Bg8 c4 Bg5+ Kh3 Bh6 c5 Kh5 Bh1 Nc4 Bg2 Ne6 Rg7 Nh7 Qf5+ Bg5 Rf7 Kh6 Kg4 Ng7 Bh3 e6 Re7 g2 Bg3 Be3 Bf4+ Ng5 Kh4 Qa1 Bg4 Qaa3 Rb6 Qa5 c6 Rcd8 c7 Rc8 Qb5 Kg6 Rc6 Nh7 Qc5 Rcd8 c8B Kf6 Bb7 Rc8 Ne1 Kg6 Ba8 Kf6 Bh6 Kg6 Qh5+ Kf6 Bg5+ Ke5 Nf3+ Kd5 Nb5 Ke4 Qe1 Kd3 Bf4 Qa4 Nd6 Qa5 Qg1 Ke2 Qd1+ Kf2 Qf5 Red8 Nd4 Rf8 Qe2+ Kg1 Nf3+ Kh1 Rd7 Rfe8 Re7 Nf6 Kg5 Nh7+
2k2rRb/1qB1Q2B/1np2p2/3qR2Q/6NQ/3nq2b/2q1rbBK/1N1bR1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 a5 g4 h5 Kg2 a4 e4 c3 b4 a3 e5 c2 d5 a2 d6 Nh6 g5 Ng4 g6 Qe8 g7 Nf2 g8B Nd3 b6 f3+ Kh3 f2 b7 f6 b5 Bg7 Bf4 c1Q Bh7 Rf8 Na3 Bh8 Nf3 c6 Rb1 a1B Rg1 Bd4 e6+ Kd8 Kg2 Nd7 b8Q Qf7 Ne5 h3+ Kh1 h4 Qh5 h2 Qa7 Re8 b6 Qc2 b7 Qe7 b8R Nb6 Qa4 Qb7 Bh3 f1Q d7 Qfe2 Rbe1 Bf2 e7+ Kc7 Bf1 Qed2 Kg2 h1B+ Kh3 Qdc1 Nb1 Bf3 Bg3 Bd1 Qag4 Kd6 d8Q+ Bd7 Kg2 h3+ Kh1 h2 Qgh4 Ke6 Kg2 Qf4 Kh3 h1Q+ Bh2 Qd5 Bg2 Qdc5 Bg3 Qd5 Kh2 Qcb3 Rc8 Ra2 Rb8 Qe3 Ra8 Rg8 e8R+ Kd6 Re7 Re2 Qde8 Bh3 Ng4+ Qde5 Qf8 Qc2 Re6+ Kd7 Ree8 Qf5 Bc7 Qd5 Re5 Rg7 Qa3 Rf7 Rg8 Rf8 Qe7+ Kc8
kqN1n1R1/nr1NQnpQ/N3qq2/4n1RN/rq1Bb3/5B1K/2Rb1Qp1/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 Kg2 d5 b4 Kd7 c4 Kc7 e4 Kb7 h4 f5 b6 a4 c5 g3 e5 a3 h5 f3+ Kh3 a2 e6 g2 h6 f4 b5 f2 h7 f3 Ba3 d3 Qc2 d2 Bb2 d1N Qb3 d4 Na3 d3 Bd4 d2 Qc2 Nf6 Qf5 Ne8 e7 Nb2 Rc1 a1Q Be2 d1Q Nc4 f1N Ne5 f2 Bf3+ Nc6 Ne2 Qa2 Nf4 Ng3 Nh5 f1Q Rc2 Qd2 Nd7 Nc4 Rh2 Rg8 h8Q Ne5 Qhh7 Ra4 Qf4 Ka8 b7+ Ka7 b8R Bb7 Qe3 Nf5 Qf2 Qe6 Rc8 Qb4 b6+ Ka6 Rh1 Na7 c6 Ba8 c7 Be4 Ra8 Qb8 c8N Rh8 b7 Nh6+ Bg4 Nhf7 Rh2 Q8d6 b8N+ Kb7 Na6 Qb8 Rh1 Qc1 Re1 Qf4 Re3 Qff6 Rg3 Ned6 e8Q Be7 Qeg8 Ne8 Qf8 Bc5 Qe7 Rf8 Ba1 Be3 Bd4 Bc1 Bf5 Bd2 Rg5 Nh6 Bg4 Rf7 Qd6 Re7 Qc5 Nhf7 Qd6 Qec4 Bf3 Qce6+ Kh4 Qbc4 Nf8 Qbc7 Nb6 Qb4 Rc8 Rd7 Qe7 Ned6 Rd8 Qb8 Nc8 Rc7 Nd7 Ka8 Rg8 Rb7 Kg3 Ne8 Kh4 Qc6 Kh3 Qce6+
1BB1Q3/4qpBK/8/k2Np1bN/2Q1q1Qr/r5R1/bR1b1nqQ/n1R2qb1 w - - 0 1 illegal: No proof kernel
q2Rq1N1/p1bRB3/q5B1/4Q3/n1n2N1b/1r3Nrb/kpb1RQqK/4B1B1 w - - 0 1 illegal: No proof kernel
4qNk1/NR6/1KBn3Q/b3n1nR/4qN1p/rp4p1/br2Q2R/Bq1Q1b1Q w - - 0 1 illegal: No proof kernel
r1kq1r2/B7/5qQ1/3RQ2R/1BKp1RNb/1n1np2p/B2Nb2Q/1Qq1b1n1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 f5 h3 g5 h4 g6 h2 b6 d3 Kc3 a4 f6 d2 b7 a3 b5 e3 c5 d4+ Kc4 e2 c6+ Kc7 f7 e1N g7 a2 Nf3 e4 Ne5 e3 Ng4 Nf6 g8Q Nd5 Qg6 Nc3 Ba3 Nd7 Bb4 Be7 f8R Nc5 Rf4 Ned3 Qe1 d1Q Nd2 Bd7 b8B+ Kc8 c7 Nb3 b6 Qf3 Qb1 Rf8 Ba7 Ne2 Bg2 Qf2 Bd5 Ng1 Bf7 Bc6 Bg8 Bf3 b7+ Kd7 b8Q Be2 Qb5+ Kc8 Qe5 Qf3 Qb2 Qf2 Rf1 a1B Qb1 Bc3 Rf5 Qe1 R1f4 Qc1 Rh5 Nf3 Rf1 h1Q Rff5 Ng1 R1f4 h3 Bd5 Bh4 Be6+ Kb7 Rfg5 Ka6 c8Q+ Qb7 Qc6+ Qbb6 Qh1 Qbd6 Qh2 Kb7 Qa5 Qf6 Rd5 Qdd8 Bf7 Kc8 Qb5 Kc7 Qe8 Kb7 Qe5 Kc8 Rc5+ Kb7 Nf3 Re8 Kb5 Nd2 Ba2 Rf8 Rd5 Nb3 Kc4 Kc8 Kb5 Bce1 Nd2 Qa3 Kc4 Qc1+
qB2R1n1/3r1b1R/1bK2nr1/2b1qNQ1/p3B1p1/2n1BN2/qp2kN1B/5R1Q w - - 0 1 illegal: No proof kernel
5Bqn/Q1K2r1k/N1nbR1RB/3p1Q2/6bQ/p2qR3/p2NBrbQ/2n1q3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Ke2 Kf7 Kf3 Kg7 Kf4 a5 Ke5 d5 b4 h5 g4 a3 f4 e6 c4 h3 b5 h2 b6 d3 g5 d2 g6 a2 f6+ Kh6 f5 h4 f7 a4 c5 h3 b7 a3 c6 Bd7 f6 Qb6 c7 Bb4 c8Q Ne7 g7 Qd8 f8B Ra7 g8R+ Kh7 Qe2 d1Q f7 Qd3 Bch6 Qe8 Qc5 Ng6+ Kd6 e5 Qg4 e4 Be2 e3 Nc3 Nc6 Qh4 Bg4 Nf3 Qa8 Rhe1 h1N b8Q h2 Rac1 Ng3 Ne4 h1B Nfd2 Bg2 Rc3 Rb7 Rf1 Re7 Rf6 Ra7 Re6 Re7 Bf3 e2 Qc7 e1Q Be2 Qc8 Qb8 Ra7 Qc7 Qa8 Kd7 Rb7 Qa7 Be7 Nc5 Rb2 Na6 Rc2 Bf1 Ne2 Qch2 Nc1 Kc7 Qe8 Nb3 Rf2 Be2 Qa8 Nd2 Qe8 Bfg7 Qa8 f8Q Qe8 Qf5 Qa8 Rd8 Rf8 Rdd6 Rf7 Rb3 Qg8 Bf8 Qb1 Rbe3 Qd3 Qfe5 Nh8 Rg6 B2h3 Rde6 Bg2 Qf5 Bd6+
bk1b4/n2Qqb2/B1qNBRN1/1p1R3Q/2r4p/B4QK1/n1n2rpB/1Nq5 w - - 0 1 illegal: No possible last move, all moves rejected
1RQ3B1/5n1r/qn1Rp1Q1/b1pB3N/1B2Kp1r/6bk/2r1qBb1/RN1Qq3 w - - 0 1 illegal: No possible last move
1BN2r1k/R3n1p1/3N2r1/4K3/b1Rn1Q2/Qrpb3B/3pnQR1/q1bq1N1R w - - 0 1 illegal: No proof kernel
1R2bK2/2rr2pB/n4bN1/2B2nQ1/2q1p1QR/4Bpq1/2NQ1bR1/3rqkB1 w - - 0 1 illegal: No proof kernel
2BrQQ2/b3n1p1/1k1q2rN/2pBBQ1K/1qp1q3/1r2Q2n/Nnb1R3/4NR2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 h4 c5 e4 Kc7 d4 a5 b4 f5 e5 f3 Kg3 f2 b6+ Kb7 h5 a4 b5 a3 d5 a2 h6 Qf6 d6 Qg6 Kh4 g3 d7 g2 d8Q f4 h7 f3 e6 Ne7 Q1d4 Na6 Rh2 Qc2 Bf4 Qe4 Q8d7+ Nc7 Qe3 Ra3 Kh5 Rb3 Nc3 Rg8 Be5 Rh8 Rc1 a1Q Na2 Qb2 Bd3 Qd2 Rf1 Qb4 Qe8 Rg8 h8N Ncd5 Nf7 Nc3 Nh6 Na4 Qg6 Nb2 Qf5 Nd5 Bb1 Bd6 e7 Bb8 e8B Ba7 Bd7 Ne7 Bc2 Rd8 Be6 Qc6 Be4 Bd7 B4d5 Bc8 Ne2 g1N Nec1 Nh3 Nd3 Bd7 Ne1 Bc8 Rg1 f1Q Re2 Qg2 Rf1 f2 Bd7 Qe4 B7e6 Ka8 Bd7 Bb7 B7e6 Qd6 Bc8 Bc6 b7+ Kb8 Rh1 Kc7 Rf1 Kb6 b8Q+ Ka5 b6 Ba4 b7 Kb6 Rh1 f1R Rg1 Rf4 Rf1 Rf2 Qa8 Rg2 b8Q+ Ka5 Qc6 Rg1 Qe8 Rg6 Qa8 Kb6 Qef8 Rd3 Qe8 Bc2 Qef8 Rb3 Qc6+ Ka5 Qce8 Kb6
bR1b2q1/2Rr2p1/2B1N3/Kp4rQ/1RNQbn2/2Q2n2/kp2NB2/2r1Nn1q w - - 0 1 legal: proof: f4 c5 g4 a5 d4 cxd4 b4 axb4 f5 h5 gxh5 e6 Be3 exf5 Bc1 f4 Kd2 Ke7 e4 Ke6 c4 b5 h4 f5 a4 d5 c5 f3 a5 d3 a6 d4 a7 b3 e5 Kd5 h6 Kc4 c6 f4 h7 b2 e6 f2 c7 f3 h5 Bb4+ Nc3 Qe7 h6 Ba5 Bg2 f1B Rh4 f2 Nf3 Bb7 c8Q+ Nc6 Ne1 Qf8 e7 Nf6 e8N Qg8 Nc7 Nd5 Ne6 Bd8 Ne2 Nf4 Ra6 Rb8 a8N Kb4 Ra7 Ne5 Qc6 Rc8 Nb6 Ba8 Rc7 Ka3 Qc3+ Ka2 Bc6 Bg2 Nc4 Be4 Rg4 Qe8 Rh4 Rf8 h8R Rf5 h7 Rg5 Rf8 Qf7 h8Q Qg8 Rb7 Rc7 Qh5 Rd7 Rc7 Kb1 Qa4 f1N+ Kd1 Nf3 Be3 d2 Bf2 Be7 Qab4 Ka2 Rb8 Bd8 Rg4 Bd5 Kc2 d1R Qd2 d3+ Kc3 Be4 Qc5 Ng1 Kb4 Nf3 Qd4 Rc1 Q2c3 d2 Ka5 d1Q Qc5 N1h2 Na3 Nd5 Ng2 Bc2 Rb4 Be4 Q5d4 Qh1 Nc4 Nf4 Ne1 Nf1
2b2qn1/Q3pB2/1R2Rb1k/1KNQ2p1/3nR1Q1/2B1r3/1pNBr3/nb1qRq2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 d4 Kg6 a4 c5 h4 b5 f4 c4 h5+ Kh7 d6 g5 a5 c3 d5 g3 a6 e3 Kd3 b3 f5 b2 a7 e2 h6 e1Q f6 b4 Kc4 b3 f7 c2 d7 g2 d6 Qc7+ Kb5 Na6 d8R Nb8 d7 Qh2 Bc4 Kg6 h7 Nf6 Na3 b1B Bd2 c1Q Nc2 b2 Nf3 g1N Ra6 Kh5 Rb6 Nc6 Ne5+ Ne2 Nd3 Kh6 Nc5 Bg7 f8R Na5 Bf7 Nb3 Re6 Qf2 Re1 Qh5 Rb6 Rb8 a8Q Na1 Qa7 Qh3 Rg8 Qhf1 Rdf8 Rb7 d8Q Rd7 Re6 Rd3 Qd5 Re3 Rd8 Qf5 Rge8 Rf8 h8B Q5f3 Re4 Ng8 Rd6+ Bf6 Rde6 Q3f2 Rd8 Qf5 Rdd6 Nd4+ Kb4 Rd8 Qg4 Qd1 Rb6 Rd6 Rb8 Ra6 Rbb6 Re2 Kc4 Ra3 Kb4 Rae3 Ka5 Ndb3+ Kb4 Q5f3 Kb5 Nd4+ Kc4 Nf5 Bg6 Bc3 Kb5 Qf4 Be5 Q4f3 Bg3 Bg7 Be5 Q3f2 Bec3 Nd4+ Kb4 Qf8 Bf7+ Bf6 Ka5 Nf3 Kb5 Nd4+
2R1r2r/r2Bp1Rq/1qn3B1/Qn1QpKb1/1Np5/3N1R2/6Q1/Bk1nqb1Q w - - 0 1 legal: proof: e4 b5 c4 g5 h4 gxh4 a4 d5 axb5 dxc4 e5 f6 Bd3 fxe5 Be2 Qd4 Bf1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 f4 h5 d4 a5 d5 c5 g5 c3 d6 a4 d7 c4 b6 c2 b7 Kb3 f5 a3 f6 h3 g6 a2 g7 h4 f7 h2 Ne2 h3 Nbc3 Qc7 d8Q Ra7 Q8d5 Rh4+ Nf4 Qd6 Rg1 h1R Bd3 Nc6 b8R+ Bb7 Kf5 h2 Rc8 Nf6 g8B Nh7 Rg7 Nf6 Q1f3 Rf1 Qg2 h1Q Qa5 Rh6 Nd5 Ne4 Nb4 Nc3 Bh7 Rh3 Bg6 Nd1 Be4 Rg1 Nfd3 Rh8 Bf3 Qh6 Bg4 Qh7 Be3 c1Q Bd4 Qe3 Rb1 a1N Rc1 Nf2 Rf1 Nd1 Rf3 Qe1 Qd5 Nc2 Bc3 Ka4 b3+ Ka3 Ba1 Qe6+ Kg5 Rh1 Qd8 N6d4 Na2 Rg8 b4 Be4 Qb6 Qh3 b5 Qf1 Ne1+ Nde3 Rh7 Bd3 Qd8 Bg7 b6 Nb4 Qd6 Be2 Nd3 Re8 B4f5 Qh2 Qd8 Qc6 Bd7 Qc7 f8Q Nbc6 Qh8 Qe1 Nab4 Nd1 Kg4 Bf6 Rg7 Nb5 Kf5 Bg5 Qh5 Qhh4 Qh7 Bf1 b7 Na5 b8Q Nc6 Qh5 Qa5 Qdb6 Kb3 Qa6 Qb6 Qa5 Rh2 Qd6 Rh3 Qg3 Rh2 Qd5 Rh1 Na6 Kc2 Nab4+ Kb1 Qg1 Rh3 Qhg4 Qh8 Q4g2 Qg8 Q1h2 Rh8 Qhh1 Qh7
2N3r1/1pk3Nb/3nB1R1/qbBpqQpK/2R5/2Qn3B/3BNb2/1Qr1qn2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 h4 g5 a4 d5 c4 Kd7 f4 b3 f6 e4 h5 g3 f5 g2 a5 b2 a6 e3 Kf3 e2 Kg4 e1Q a7 d3 h6 d2 f7 Qde7 c5 Rh7 c6+ Kd6 c7 Qg3+ Kh5 Qd3 f6 Nc6 Ra4 Qc2 Rc4 Nd4 Nf3 g1Q Nc3 b1B Bh3 Ne2 Nd4 Bd7 c8B Qe5 Ne6 Qe1 Ng7 Bb5 Bce6 Qa2 Rf1 Rh8 h7 Rc8 a8N Nh6 Nb6 Rg8 h8Q Nf5 Rf2 Rc6 Nc8+ Kc7 Rf3 Bb4 f8B Bc5 f7 Bf2 Bc5 Nd6 f8Q Bh7 Rf6 Qa5 Qb3 d1N Qb1 Ne3 Rg6 Nf1 Bd2 Nc1 Ne2 Nd3 Qf3 Rd8 Qhf8 Re8 Q8f5 Rg8 Qg3 Nc1 Qa3 Nd3 Qc3 Ra6 Qa2 Qb4 Qac2 Ra1 Q2b3 Rc1 Qb1 Qa5
1RKQ4/1pn1n1bB/pB1B1rNq/1b3Q1n/qN4Qr/B7/pRN5/1qr4k w - - 0 1 illegal: No proof kernel
1Q2R1R1/pN5B/NB2bQ1r/2Krq3/3R4/krp1q1N1/nnbpQ2b/2n1R3 w - - 0 1 illegal: No possible last move, all moves rejected
2Qr1rQ1/3qR1b1/2Nnr1r1/1BQ2p2/p2rB3/R1R2bp1/RKb5/B1n1kN2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kf6 c4 Ke5 Kc2 g5 h4 a5 b4 d5 b6 f5 b7 f3 b5 f2 h5 a4 b6 g3 c5 g2 h6 d3+ Kb2 Kd4 e5 g4 e6 d2 c6 Ke3 e7 d4 e8B d3 h7 Bh6 c7 Na6 b8Q Nf6 b7 Nc5 Nf3 g1R Ra2 Bg7 Bg2 f1R Nd4 Kf2 Be4 Qd7 Rh3 Re1 Nc6 Rf8 h8R Nb3 R8h7 Re3 Qc2 Ke1 Qc5 d1B Nd2 Bc2 Nf1 d2 Rf3 d1R Rg3 Re2 Rc3 Rd4 Bf4 Nc1 Be5 g3 Raa3 Ra6 Qa8 Red2 b8R Bb7 c8Q Rh1 Ra2 Rh6 Raa3 Rg6 Ra2 Bh8 Re7 Bg7 Rca3 Qc7 Bd7 Ne8 Bf6 Nd6 Be5 Rff6 Qg8 Qd8 Rc8 Rf8 Rc7 Rd1 Qc8 R1d3 Nb4 Bd5 Bb5 Qd7 Nc6 Rd1 Bed3 Bg2 Be4 Bf3 Nb8 Nf7 Ba8 R4d2 Qa7 Rac6 Ka1 Ra6 Be4 Qc6 Bb2 Qd5 Rcc3 Rae6 Qac5 Qb7 Nc6 Rdd8 Rd7 Rd4 Re7 Bb3 Kb1 Qd7 Ba1 Nd6 Kb2 Bc2
1B1K4/2r1NBR1/3b4/1R1npBN1/Nr1p1rnB/2R1b2Q/2Qpk3/rq2r2b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 g4+ Kg6 c5 h5 f5+ Kg5 f6 Kf4 g5 e5 g6 d5 c6 h3 g7 h4 b6 h2 b5 d3 Kc3+ d2 f7 Ke3 b7 a4 c7 a3 b6 a2 Bd3 h3 Nf3 Ra7 Qc2 Bd6 f8Q Nh6 g8B Na6 b8R Ng4 b7 Rh4 Ng5 Nb4 Rg1 h1R Qh6 h2 Bf7 d4+ Kc4 Qe8 Ba3 Nd5 Nc3 Bf5 Rad1 a1R c8N Qg8 Kb5 Qg6 Rg2 Re1 Kc6 h1R Ne7 Rb1 Na4 Rb4 Rg3+ Kf2 Rg8 e3 b8B e2 Rb1 Be4 Rg7 Rhf1 Qh8 Bh1 Bf5 Rd7 Rb2 Ra1 Re3 e1B Rc3 Ke2 Qh6 Rf4 Qh7 Rh2 Qh3 Bf2 Rbb3 Be3 Rb1 Rbb7 Rb5 Rhf2 Bc5 Rff1 Bb6 Rfe1 Bd8 Bg2 Ra5 Rb4 Rb5 Bc7+ Kb7 Bd6+ Kc8 Be4 Ng8 Bh1 Bf6 Rb3 Ne7 Rc7+ Kd8 Rb4 Nh7 Rec1 Bh4 Re1 Ng5 Qh7 Bd7 Qe4 Bf5 Qd3 Rc4 Qb3 Rc3 Qb1
6Nk/K1n1n2n/Rb1N2p1/RN1B1B2/bp1r3B/2Q2q2/1rb1b1pN/4R1Qb w - - 0 1 illegal: No possible last move, all moves rejected
2qNBR2/N2br1Q1/p4p2/nRbBQBRn/1b2b3/bK2n2p/3r1k1B/1N6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 Ke4 g4 c5 g5 h5 b6 f6 b5 f3 b7 f2 g6 a6 b6 h3 d5 h4 d6 h2 d7 h3 g7 Rh7 Nf3 Ne7 g8B Nbc6 b8R Ng6 b7 Re7 Ne5 Na5 Nc6 Nf4 Rg1 h1B Na7 Nh5 Bf4 Qe8 d8N Bd7 Bc7 Ke3 Bh2 Be4 Bg2 f1N Bh7 Kf2 Bf5 Ne3 Ra4 Qf7 Rb4 Qg8 Rb5 Qe6 Kb2 c3+ Ka3 c4 Bh1 c2 Rg5 Bc8 Qd7 c1B+ Kb4 c3 Qc7 Bd3 Bd5 Bd7 Rc8 c2 b8Q Bd2+ Ka3 Nc6 Kb3 c1B Qcb7 Ba3 Qe5 Bdb4 Qbc7 Nc2 e4 Ne3 Qb7 Be8 Rb8 Qc8 Qbc7 Rh7 Qg7 Bd7 Qc3 Bbc5 e5 Be4 e6 Bfd6 e7 Na5+ Ka2 Bcb4 e8B Bf8 Qe5 Bfc5 R8b6 Rb8 Re6 Ra8 Re7 Rb8 Rf7 Rb6 Rf8 Rd6 Qg8 Re7 Qg7 Bb2 Bc4 Rd2 Bd5 Nac4 Kb3 Bc1 Qg8 Bca3 Qg7 Na5+
q3n3/2rb1rp1/N5B1/2nRNN1r/1Rb5/kbb2p2/1N1bQ1p1/B2Q1BRK w - - 0 1 illegal: No possible last move, all moves rejected
1k1KN3/1bnp2pr/8/N1QR1Qb1/1rNr3B/1Bq2bNb/nB1p1R2/5b1R w - - 0 1 illegal: No proof kernel
N5rQ/1Rpk1B2/1n1N4/1b1N1b2/1rr1QR1r/K1NqQ2p/4rp2/Bn3Rb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 a5 g4 f5 d4 h5 Kd2 f3 Kc2 a4 Kb2 f2 e4 f4 b6 f3 d5 h3 d6 h4 e5 c3+ Ka3 c2 b5 h2 b7 h3 b6 Bg7 d7+ Ke7 e6 Nc6 b8R Qf8 d8N Nh6 g5 Na5 b7 Ng4 g6 Qf5 Qd3 Ne5 Ne2 Nb3 Nbc3 Nd2 Nf4 Rh4 Qe4 Nd7 Nf7 Bd4 g7 Nb6 Bb2 c1R Bc4 f1B g8Q Bg1 Qh8 Be2 Bd5 Bb5 Nd6 Qg6 Qe3 Qd3 Rb1 Re1 Ba1 Re2 Rb4 Bcd7 Rf8 Rb8 Rf5 Rg8 b8N Bc8 Nd7 Kd8 Ka2 a3 Bb3 Ke7 Nfd5+ Kd8 Nde4 Ke8 Rf4 Kd8 e7+ Ke8 Ndc5 Bf5 N5a4 Kd7 Bc4 Bf2 Rc1 h1R Nd6 Bg1 Rf1 f2 Qe4 Nf3+ Kb3 a2 Ka3 Nd2 Ne3 Rh2 Bf7 Rhg2 Nd5 R2g6 Nb7 Rc6 Nd6 Rc4 Rb2 Kc6 e8Q+ Bd7 Qe8e5 Bf5 Q5d4 Kd7 Qde3 Na8 Qg3 Bc6 Rb7 Bb5 Qgf3 Nb3 Bb2 a1R+ Na2 Rae1 N2c3 Rb1 Ba1 Nd2 Qfe3 Rbb4 Rf3 Nb6 Rf4 Nc8 Nab6+ Kd8 Na8 Nb6 Q3d4 Kd7 Qde3 Nb1+
Q1rN1r2/n1n1n2b/1k3n1p/1bbR1N1B/2pR4/B3K1N1/qB4p1/2Q1Qr1Q w - - 0 1 illegal: No proof kernel
5QRN/R5Q1/1Rb1nQ1p/1pB5/B2b4/n2b2q1/bkpKnr1r/R2B1rN1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Ke7 e4 Kf6 d4 b5 g4 c5 d6 f3 d7 b3 a5 h3 d5 Ke5 a6 f5 d6 b2 a7 f4 g5 h2 g6 f2+ Ke2 f3+ Kd2 Kd4 e5 c4 g7 Ne7 g8B Bg7 e6 Nbc6 Be2 f1B Ra6 f2 Rb6 Qc7 d8Q Ng6 d7 Qg3 e7 Nf4 e8R Ne6 Na3 h6 Bh7 Rf8 Bc2 Rf6 Bf3 Bd3 Ba4 f1R Rg8 Rf5 Be2 R5f2 Qf8 Bb7 Qe1 b1B Qf6+ Ne5 d8Q+ Bd5 Qdf8 Ba2 Qd1 Bc6 Qe1 Rd8 a8R Re8 Ra7 c3+ Kd1 c2+ Kd2 Re7 Nc4 Rf7 Nd6 Rg2 Qg6 R7f2 Ba3 Bh8 Nf7 Nc4+ Kc1 Bf6 Bd1 Be5 Bd6 Na3 Nh8 Kc4 Qa5 Bd4 Qa6 Kc3 Bc5 Be2 Nf3 Bd3 Rg1 h1N Qgg7 Re1 Rf1 Rh2 Rg1 Qh3 Rf1 Ng3 Rg1 Ref1 Rh1 Kc4 Ng1 Ne2+ Kd2 Qg3 Qac8 Rf4 Qcd8 R1f2 Ke1 Kc3 Qdf6 Kb2 Kd2 R4f3 Nh3 Nc3+ Be2 Rfg2 Ra1 Rf1 Ng1 Rgf2 Qe5 Rf5 Qf4 Rf6 Qf2 Rf7 Bd1 Ne2 Qf4 Rf5 Qfg5 R5f4 Q5f6 R4f2
1r1R1q2/1Rr1N1Nn/p3pnRb/2b2b2/1nB1kpN1/B6Q/Q3nrN1/6KB w - - 0 1 illegal: No proof kernel
QNR1Q3/RR1nn1bp/2Kp2qB/b2B1k2/1Bb4r/5nB1/3rnp2/rNN5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 Kd5 f3 g4 h3 b4 f2 e4 h2 c4 a4 c5 d3 g5+ Kg6 e5 f5 b6 a3 c6 f4 c7 f3 e6 d2 b5 a2 b7 Bb4 e7 Ra4 e8Q+ Kf5 b6 Ra8 g6 Nh6 g7 Ng8 Bg2 f1N Qa4 d1N Ne2 f2 Bh6 Qg5 Nc1 Nd2 Re1 h1R Re7 Ba5 Qc6 Na6 b8B Nc5 b7 Nf3 Ba7 Qg4 b8B Ba6 c8R Qg6 Bg3 Rh4 Bab8 Ra7 Qa8 d6 Kc6 Nc3 Rb7 Nd7 Bc7 Bc4 Bb6 Ne2 Bc5 Nh2 Bd5 Nf3 Rbc7 Rb7 Ba3 Rb2 Rb7 Rd2 Bb4 Ngf6 Qd8 Re8 g8N Re3 Qe8 Ra3 Bg7 Kg4 Ne7 Ng8 Bh6 Ra4 Nf5 Ra3 Nd4 Ra4 Ndb3 Kf5 Nc5 Ra3 Na6 Ra4 Nb8 Ra3 Nc3 Ra4 Rb1 a1B Ra7 Raa2 Rb3 Ra3 Nb1 Bg7 Re3 Ra1 Re7 Nc5 Rec7 Nd7 Rcb7 Ne7+
b1Q2Q1r/r1BnbRp1/pqnR2br/r5K1/2N5/2Q4N/B4pk1/n1Q2RB1 w - - 0 1 illegal: No possible last move
Bk1r2BQ/2p3r1/2np2Q1/b2NbpB1/R1Kn2b1/RNrR4/nb6/1N3N1q w - - 0 1 illegal: No possible last move, all moves rejected
2kBq1Br/2b2rn1/nBQ5/NNb1bR1Q/2BR1pKN/1p6/2p1b1Q1/6qb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 f5 e4 c5 h4 b5 a4 g5 h5 g3+ Kf3 g2 d6 c4 d5 b3 a5 c3 e5 b2 h6 b4 h7 b3 a6 c2 e6+ Ke8 a7 Ba6 d7+ Ke7 Rh4 Bg7 Be3 Nh6 Qe2 Qe8 d8N Bb7 Nc3 b1Q Bb6 Be5 Nb5 Na6 Ra5 Rb8 a8B g4+ Kf2 g3+ Kf3 Rf8 h8Q Rf7 Qf2 Bc6 Nb7 Bc7 Bc4 Rd8 Ne2 g1B Qg2 Bc5 Ned4 Qg1 Qh7 Rb8 Qg6 B5d6 Qh5 Be5 Rg4 Qd7 Rh4 Rh8 Rg4 Ke8 e7 Qd8 Rh4 Kd7 e8Q+ Kc8 Qe6+ Qd7 Qf6 Qe8 Rg4 Bd7 Qc6 Be6 d6 Bd5+ Ke2 Be4 Nf3 Bd5 Nh4 f3+ Kd2 f2 Ke3 Bf3 Rd4 Be4 Ke2 Bd5 Ke3 f4+ Ke2 Nf5 d7+ Kb8 d8B Kc8 Qh2 Bh1 Qhg2 f1B+ Kf3 Ng7 Kg4 Rff8 Ra1 Rf7 Na5 Bd6 Re1 Bc5 Re5 Be2+ Qcf3 B5d6 Rf5 Be5 Bc6 Qe1 B6d5 Qg1 Qf2 g2 Qf1 Rf6 Bg8 Rf7 Qf2 Qe1 Qf1 g1B Qg2 Qa1 Rd7 Bc5 Rd4 Bd3 Qe4 Qg1 Qc6 Be2+
3b4/3Q1qB1/K3nR1R/1nb1r1pq/rpBb3k/b1NR1b2/p3NNB1/1N1Q4 w - - 0 1 illegal: No proof kernel
kbn2RB1/1RqQ1R2/b1NNK2B/r4p2/3Q2bb/NR1nr1q1/1B2p2p/6b1 w - - 0 1 illegal: No proof kernel
1Nnb2B1/1krb4/RbbpnR2/6B1/2N1N2r/bQ2Rp1p/1q2B2N/q2Q3K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kf2 h5 g4 a5 Kg2 f5 b4 a3 c4 a2 e4 f3+ Kh2 f2 e5 f4 b5 d3 e6 a4 e7 a3 g6 d2 c5 h4 g7 f3 g5 h3 b6 Rh4 g6 Ra7 c6 Rc7 b7 Na6 b8N Nc5 Be2 f1Q Nc3 Ne6 Ne4 Qe1 Rb1 a1B Rb6 a2 Ra6 Bf6 Rb6 Ra7 c7 a1B Rc6 Bb7 c8N Bad4 Nb6 Bc8 Nc4 Qb6 Rd6 Qb2 Ra6 Rc7 Rb6 Nh6 g8Q Nf5 g7 Nd6 Rc6 Bb7 Rb6 Nc8 Rd6 Nd8 Qe6 Bc5 g8B Bb6 Qd5 Bg5 Rf6 Bc6 Qb3 d1B Qd2 Bc2 Qd1 Ne6 Bf4 Bgh6 Bg5 d6 Bd3 Qa5 Ne2 Qaa1 N2g3 Bfg7 Nf1 Bb1+ Bd2 Bg5 Be2 Ba2 Rg1 Bh8 Kh1 Bb1 Nc5 Bf5 Ne4 Bg7 Nh2 Bh8 Na6 Kd7 e8R Bg7 Re7+ Kd8 Nb8 Bh8 Rg6 Bc3 Be3 Bb4 Rf6 Ba3 Bf4 Na7 Re1 Kc8 Rd7 Kb7 Bc1 Bh6 Bg5 Bf8 Rd8 Be7 Rdf8 Bd8 Re8 Nf8 Re5 Nc8 Ra5 Ne6 Ra6 Qba2 Bd3 Q2b2 Re3 Nd4 Bf1 Bfd7 Be2 Ne6
B1rkNQ2/3r2Np/p3pr1R/2N3n1/BB1n2q1/b1Q1Rr2/1Q1q3K/2Nb2r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 d5 g4 e3 c4 h3 f4 h2 g5 a6 c5 e2 Kf2 e1R Kg2 d3 f5 d4 g6 d2 f6 d3 b6 Kd7 b5 Nc6 b7 Bh6 b8Q Nb4 c6+ Ke8 b6 Qd5+ Qf3 d1Q c7 d2 b7 Qh5 f7+ Kd7 f8N+ Ke8 g7 Qc2 Ba3 d1R+ Ne2 Qcf5 Ne6 Rd7 Nbc3 Qff7 Ne4 Nc6 N4c5 Nf6 g8N Nd4 Nc1 Re3 Bb5 Bf8 Bb4 Ne4 Ra3 Ng5 Ba4 Qf4 Qh3 Rf3 Re3 Qfg4+ Qg3 Qh6 Nf6+ Kf7 Ng7 e6 Na2 Ke7 Nfe8 Rg8 Nc1 Rf6 Rf1 h1R Rd1 Rh5 Rh1 Rh2+ Kg1 Rhf2 Rh3 R2f3 Kh2 Qhh4 Qe5 Qe1 Rh6 Qd1 Qa7 Qd3 b8Q Bb7 c8B Kd8 Qg3 Bd5 Qab7 Bb3 Qe1 Bc2 Qc3 Bd1 Qb5 Qd2+ Qe2 Rc7 Bb7+ Rc8 Qf4 Ra7 Ba8 Rd7 Qf5 Rg3 Qef2 Rg1 Qb1 Be7 Qbb2 Rgf8 Rd3 Rf3 Re3 R8f6 N5b3 Rg6 Ba3 Bb4 Nc5 Rfg3 Re2 Rd3 Qf4 Rf3 Qf8 Qe1 Re3 Rgf6 N5b3 Ba5 Bc5 Bb4 Bd6 Ba3 Bb4 Nh3 Nc5 Ng5 Qg2 Qe2 Qf2 Qe1 Qfb2 Qd2+
N3N3/3Q1pr1/Nb1bbrBB/2b2qN1/1p2R1Kp/1Q3R1n/3n1qBk/1Rb5 w - - 0 1 illegal: No possible last move, all moves rejected
4R2n/BRrp1p2/5nB1/q1rQ2NR/Q6b/2K1p2R/Nn1n1qbQ/N4kn1 w - - 0 1 illegal: No possible last move
1b5n/1q1Q1b2/1b2r3/1q1Q3n/Nk2p1Q1/2br1p1B/Q2pKBr1/2RRNNR1 w - - 0 1 illegal: No possible last move, all moves rejected
2Kn1BnR/k3q3/8/BR1R1Bq1/2ppQ2p/bQr1BN2/b1q2r1r/1QN2q2 w - - 0 1 illegal: No proof kernel
4n2K/1Nr1Q3/Q1BRN3/4B2n/RpQ1bR1p/Q1q2qbn/r5pq/3n1Bk1 w - - 0 1 illegal: No proof kernel
Q1B1qb1b/1NB1b3/3N1Q1N/r1K2p1p/8/n4Q2/3kqnRp/Br1bqRN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 g4 Kf6 b4 Ke5 e4 Kd4 b6 c5 g5 a5 e5 h5 e6 h3 g6 h2 g7 a4 e7 c3 e8N c4 b5 c2 b7 f3 b6 c3 Bb2 c1Q Na3 Ra5 Bh3 Kd3 Nb5 c2 Ra2 a3 Ned6 Nc6 b8Q Nd4 b7 Qe8 Qa8 Nf6 b8B Bg4 g8N Rh7 Nb7 Ne4+ Ke1 f6 N5d6 Nb5 Nh6 f2+ Kf1 Qb1 Ba1 c1B Bc7 Rg7 Rb2 a2 Kg2 Na3 Qf3+ Kd4 d3 Kc3 d4+ Be3 d5 Qe1 Nc8 Rg5 d6 Rgb5 d7 Kd3 Rc2 Rb1 Ncd6 Be7 d8Q Qe2 Rc5 Kd2 Rg5 Bc5 Rg8 Ng5 Kg3 f1Q Kf4 Qfe1 Rg6 Ne4 Rg7 Bd7 Rg2 Ba4 Bc8 f5 Ke5 Nf2+ Kd5 Bf8 Qf6 Bd1 Nh3 Be7 Rf1 Bf8 Bd4 a1B Ng1 Bb2 Be5 Bc1 Ba1 Bb2 Qe7 Bh8 Qf6 Ra7 Nb5 Bce7 N5d6 Ra6 Kc5 Ra5+
RB1KnkN1/3bb2q/rR2b2N/2Qp4/3r2pq/n1n1QB2/R3p3/N1Q1b1R1 w - - 0 1 illegal: No possible last move, all moves rejected
2q1n2Q/1Rb2Q1B/1r1N1R2/N2pk2n/qQp2Nq1/1n2Kr2/R4Bbp/N3n3 w - - 0 1 illegal: No possible last move, all moves rejected
2b1b3/2n2Bk1/q1Bq1bn1/rpN2QQ1/2R1RBpp/r3K1Nr/1Nr5/4R1B1 w - - 0 1 illegal: No proof kernel
Rr1qNN1n/2Q1QRr1/q1rQ4/p1Bp2Q1/1b3q2/n2b2KR/2p5/kr1N1B2 w - - 0 1 illegal: No proof kernel
7n/r4q1k/Q4Qpp/r1p3q1/Rb1NRBBr/1BbN2Kn/1N3b2/1b3R1R w - - 0 1 illegal: No proof kernel
b1nk4/Nrq1b3/R1B1p2b/1B2rpNQ/Bp6/n1b1Q1R1/3KRQ1B/1q3q2 w - - 0 1 illegal: No proof kernel
N1N4b/Rn1n4/q2p2q1/B5N1/BR1qb3/r1p2B1p/Qb1k1rQB/q4Q1K w - - 0 1 illegal: No proof kernel
R4Rr1/q1bnnb1K/3p2QN/3r2B1/kpB4q/N1Q3Br/B2p4/n1NrQ3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 e5 Kd3 b5 Ke4 h5 c4 d3 g4 d2 a4 b3 f4 h3 g5 h4 a5 b2 c5 h2 f6 b4 Kf5 e4 Kg6 e3 f7+ Ke7 a6 h3 f5 Qb6+ c6 Kd6 f6 Kc5 a7 Rh4 c7 Qd6 Bc4 Rd4 Ne2 Qe5 Na3 b1R Kh7 Rd5 g6 Bd6 f8B Qd4 g7 Ne7 Rf1 h1R g8N h2 f7 Kb6 Ra2 Ka5 Qe1 Ka4 Nh6 Ba6 c8Q Bc7 Ra1 Qb6 Ba2 Bc4 Bg7 Rb3 f8Q Rg1 Rf3 h1Q Qf5 Qh4 Be5 Rc3 Bg3 d6 Bb2 Qc5 Nc1 e2 Qg6 Nd7 Rf8 Rb8 a8B Qa7 Bb7 Re3 Bbe5 Rb3 Bgf4 Rh3 Ba6 Bb3 Bc4 Rf1 Qeg3 e1N Bg5 Nc2 Qe1 Rg1 Bg3 Ra8 Qee6 Rd1 Qe1 Rb8 Rf2 Ra8 Qh8 Re8 Qc3 Rg8 Rf8 Rb5 Be2 Bf7 Bec4 Rd5 Bb1 Qc5 Ra2 Ka5 Nb5+ Kb6 Ra3 Na1 Bba2 Kc6 Raa8 Qa7 Na3 Kb6 Qf5 Ka5 Qg6 Ka4
N3RBKq/5N1p/Q1RbQ1BN/3bR3/2N2p2/r1q1nn2/4q1pk/1b1Brb2 w - - 0 1 illegal: No proof kernel
BKR1Qn1b/1n1b3p/6pR/2b2Q1Q/N1R1pB2/2qR2r1/b2B1r2/1kNq1q2 w - - 0 1 illegal: No proof kernel
4r2Q/1bBn1kp1/4Rr1b/1Qp1R1Bq/BB3rNQ/3r1RN1/K4p2/1q3n1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 f5 e4 a5 d4 c5 Kd2 a4 Kc3 f3 Kb2 a3+ Ka2 g3 h4 f4 e5 f2 d5 c3 e6 c2 h5 g2 b6 f3 d6 Bd7 h6 Na6 b5 Rh7 e7 Qb8 b7 Qc8 b8Q Nc7 b6 Bf5 b7 Nd5 d7+ Kf7 d8B Be4 e8R Ne3 Bg5 Qf5 Rh5 Bd6 Qd4 Bf4 Re6 Nf6 Bd2 c1Q Nh3 g1Q Bb4 Nd7 Nc3 Qh1 Bb5 f1R Ba4 Rd1 Ne2 Nf1 Qf2 Rd3 Ng3 Ra6 Qh2 Rh8 h7 Re8 Nf2 Rad6 Ng4 f2 h8Q Bc6 Re4 Rf6 Qh4 Qg6 Rh6 Qh5 Re5 Qd1 Rc1 Qe1 Rc3 Bc1 Ka1 a2 Rb3 Rf4 Rhe6 Be3+ Kb2 a1R Rc3 Rad1 Ka2 Bc1 Rb3 Rd6 Rf3 R1d3 Qd8 Be3 b8B Bb7 Qa5 Bd2 Bc7 Qd1 Re1 Rb6 R6e5 Rbf6 Qb5 Bc1 Re6 Bd2 R1e5 Qc1 Bc3 Qb1+ Ka3 Rb4 Be3 Qd1 Ka2 Re4 Bb4 Qc1 Bd4 Bh6 Be3 Rc4 Bg5 Rcf4 Ra6 Qd1 Rae6 Qb1+
2R1BbqN/4Rp2/p2q2q1/RQQ2n2/q2pRr1r/6Bk/n3N3/nKNQ1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kf6 g4 Kg5 c4 h5 Kc2 d5 b4 h3 c5 Kh4 g5 f3 g6 h2 c6 f2 g7 a6 c7 Bd7 c8Q Bh3 b6 Qe7 b5 Nh6 g8N Nf5 e5 Nc6 b7 Rb8 b6 Qd6 Nd2 d3+ Kb1 Nb4 e6 Na2 Nb3 d2 Bb5 f1N e7 N1e3 e8R Nc2 Ne2 Bf1 Ne7 Kh3 Ng6 h4 Qc5 d4 Re5 Re8 b8R Rh7 Rg1 h1Q b7 Qg2 Nh8 Qgg6 Rc8 Re6 b8Q Rf6 Be8 Rh6 Qe1 d1Q Rg4 Qg8 Qb7 Qd3 Qbd5 Qb5 Qd1 Qa4 Qdc6 Re6 Re3+ Kh2 Kb2 h3 Rgg3 Qa5 Qd7 Re4 Rg6 Nc3 Rgg3 Rhh4 Rg4 Qb4 Ra4 Na2 Kb1 Na1 Ra5 Qa4 Qdb5 Qdg6 Rf4 Kg2 Bd2 h2 Be1 h1Q Nbc1 Qh2 Rg4+ Qg3 Bf2 Qd6 Rf4 Q3g6 Bg3 Kh3 Rg4 Rf4 Re7 Rf2 Rge4 Rff4
B2N1N1k/n1B1p1qb/5N2/N1q1R2p/Q2bb1r1/q2Bp3/1r2R2n/1Kb1RQ2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg7 f4 a5 b4 h5 c4 d5 Kc2 a4 f5 h3 b6 h2 g5 a3 c5 a2 g6 Nf6 b7 Na6 b8Q Qd7 c6 Qd6 b5 Kg8 b6 Qe5 c7 Bh6 g7 Ng4 Qa7 Nb8 f6 Bf5 c8B Nc6 b7 Bh7 Nh3 Rb8 Qa4 Na7 Bf4 d3+ Kc1 d4 Na3 Qc7+ Nc4 Qc5 Ng5 d2+ Kc2 Qa3 Na5 Qc5+ Kb2 d3 Ne6 Bg5 Rc1 a1B+ Kb1 Bd4 Nd8 Qa3 Qf3 d1Q Bc7 d2 Bd3 Qg1 Qf1 d1Q Bf5 Qf3 Re1 Qfg3 Re2 Bc1 Bg6 e3 Bge4 Qgd6 Bg2 Qdc5 Bge4 Ra8 b8R Qg3 Rb7 Rb8 Rb5 Rb7 Rg1 h1B Bc6 Rb6 Ba8 B1e4 Rh1 Nh2 Rg1 Bhf5 f7+ Kh7 g8N Qg7 Rh1 Rg6 Rg1 Rg4 Rh1 Qc4 Re5 Qcc5 Nh6 Rf8 Ng8 Kh8 Nf6 Re8 f8N Bh7 Ndb7 Rb8 Rg1 Bdb2 Nd8 Rb5 Rgg2 Rb3 Re1 Bd4+ Rb2 Rc3 Rf2 Rc2 Rfe2 Rb2+
2N1q2Q/3Bpp1n/3N2b1/1Q1Bb1q1/K2N2RB/2qbQ3/qR1B1rp1/n1rk4 w - - 0 1 illegal: No proof kernel
qBnrQ1b1/2rp1Bk1/1n3Rn1/p3KBQR/8/N2Npq2/2qb2N1/1B1q2Q1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 h5 f4 e5 c4 a5 b4 d3 Kc3 d2 c5 h3 c6 e3 f5 e2 g5 e1N b6 h2 c7 h4 b7 h3 b5 e4 Kd4 Nf6 b6 Qe8 g6+ Kg7 Nf3 Rh4 Ne5 Qe6 Na3 Ne8 f6+ Kh6 g7 Qc6 g8B Be7 f7 Na6 b8Q Qc2 f8N Nd3 b7 Nf4 Bd3 Kg7 Nfg6 Nb4 Qg1 d1Q Bf7 Nbd5 Ra2 Rg4 Nh4 Bg5 Ng2 Ng6 Bf4 Nd6 Rb2 Rh4 Rb6 Rh6 Bg3 Bd2 Ra6 e3 Bf5 Ra7 Nd3 Rh8 Qa8 Rg8 b8Q Nb6 Qd5 Bb7 c8B Rd8 Qb5 Be4 Bb7 Ndc8 Ba8 Bf3 Bae4 Rc7 Qc5 Be2 Qe7 Bf1 Qg5 Be2 Nf2 Bc4 Nd3 Na8 Rf6 Nab6 Be8 Bg8 Bf7 Rc6 Qe5 Qf3 Qe8 Rc3 Bb8 Rc7 Bed5 Qfd1 Ba2 Qf3 Qa1 Qfd1 Bb1 Qf3 Rg1 h1Q Rd1 h2 Rc1 Qa2 Rc5 Qhd1 Rd5 h1Q Rb5 Kh8 Rd5 Qac2 Rc5 Nf8 Ke5 Qa8 Rb5 Qdf3 Rc5 Qhd1 Rc4 Qb3 Bc2 Qde2 Qg1 Qd1 Bb1 Qbc2 Rh4+ Qh5 B7g6 Kg7 Rh2 Qhg4 Rh5 Qgf3 Bf7+ Ng6+
8/rrRppN2/b3N3/1Q1R1nnK/Q3Nrq1/b1B2pR1/1R1BBrb1/6qk w - - 0 1 illegal: No possible last move
NkqnRnK1/nrpQQQ2/8/3b3b/1N2N2N/1p4r1/4p1Rn/1BbRB2q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 h5 Kf4 b5 Kg5 e5+ Kg6 h3 Kf7 h4 f4 h2 g4 b3 a4 e3 d4 h3 g5 b2 a5 b4 d6 e4 g6 e2 d5 e1Q g7 b3 f5 e3 f6 Rh4 a6 Ne7 g8R Ra7 Ra2 Bh6 Bd2 Nec6 Nf3 Rg4 Re8 Rb7 a7 Rg3 Nc3 b1N a8N Na3 Nh4 Nb5 Ne4 Nba7 Bd3 Bf4 Rf1 h1N Bb1 h2 Bc3 Bh6 Rg2 e2 Rfg1 Qf1 Be1 Nf2 Qd4 Ng4 Kg8 h1B f7 Bc1 f8Q Nh2+ Qdg7+ Qe7 Qf7 Nd8 Qg5 Rb6 Qgg7 Bb7 Qg5 Kc8 Qgg7 Bc6 d7+ Kb7 d6 Bd5 Qg5 Qe6 Qg7 Ndc6 d8Q Nd7 Qf6 Nd8 Qe7 Nf8 d7 Kb8 Qg4 Rb5 Qg7 Qa6 Qg4 Qc8 Qg7 Ndc6 d8N Rb7 Qd7 Be6 Qg5 Bg4 Qge7 Qf3 Ne6 Nd8 Nd4 Qf1 Nc2 Qf3 Nb4 Qf1 Bc3 Qf3 Rd1 Bh5+ Qg6 Qf1 Be1 Qg1 Rf2 B1f3 Rg2 Qh1 Qgg7 Bfg4 Qef7 Be6 Qe7 Bd5 Qg4 Bg6 Qgd7 Bh5+
1qB2nq1/1p5b/nr4Q1/pbB1r3/3b2RR/2k1N1pR/Kn1Rb2Q/3B2NN w - - 0 1 illegal: No proof kernel
3R2qR/BpB2Q2/1r1p4/q1q1NB2/1bRn2nB/2n5/KQ2q1p1/1Q1brkN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 Kb3 g5 f4 e5 a4 d3 a5 g3 a6 g4 f6 g2 a7 g3 c5 d2 f5 Ke3 h5 Kf2 f7 e4 f6 e3 c6 e2 h6 e1Q c7 Qe2 h7 Be7 f8B Nh6 f7 Nc6 Na3 Nd4+ Ka2 Ng4 Nc4 Bc5 Qc2 d1Q Bd6 Qg8 f8B Qdd2 Bfe7 Rb8 a8R b3+ Kb1 b2 R1a4 Ke1 Bh4 Bb4 Ka2 b1N Qb2 Qdg5 Be3 Qa5 Rh2 Ne6 Ba7 Nd4 Bdc5 d6 Bcb6 Be6 Rh3 Re8 c8Q Bd7 Qc7 Nc3+ Ka1 Re5 Rd8 Rb5 Ne5 Bc6 Rh2 Bf3 Qf7 Kf2 Bc7 Rb6 Ra2 Na4 Qb1 Qe8 Rc2 Qg8 Qb2 Ke1 Ka2 Kf2 Rc4 Ke1 Nh3 g1Q Bg2 Qge3 Ng1 Q3f2 Bh3 g2 Qc2 Kf1 Rh1 Qe4 Qb2 Bd1 Qc2 Qed5 Rh2 Qff3 Qb1 Qdc5 Rh1 Qg5 Rh2 Re8 h8Q Qg8 Qhf6 Ne3 Bf5 Ng4 Bg3 Qe4 Rh8 Qd3 Bh4 Re6 Nef3 Re1 Ne5 Qf3 Qg5 Qf2+ Qd2 Qe2 Qdb2 Nc3#
N3B2B/prR4Q/q4NnR/kqbK4/1bnBB3/1b1r3b/p1Q1Qp2/4R2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 g4 Kb6 b4 h5 d4 c4 b5 f3 d6 f5+ Kd5 a3 e4 f4 g5 a2 g6 c3 d7 c2 g7 f2 e5 h3 e6 h2 e7 f3 e8B h4 Be3 c1B Na3 h3 Bg2 f1N Nc4+ Kb7 b6 Ka6 b7 f2 Qe2 Qf6 d8R Bca3 Nb6+ Ka5 Rd7 Bac5 Be4 Ng3 Rc7 Nc6 b8B Rh7 Re1 Ne5 Nf3 Nc4 Ne5 Bb4 Ng4 Bfc5 Qc2 Qh6 Nf6 Bg4 Rhg1 h1Q Rgf1 Qg2 Rh1 h2 Qe2 Qf1 Qc2 Qg6 Qe2 Nh6 g8Q Nhf5 Qf7 Rh3 Qh7 Nh4 Nfd7 Qf7+ Kc6 Nd6 Qc2 Qf5 d5 Qc4 Rc8 Qf6 Qe2 Ndf5+ d6 Ng6 Bc7 Rb8 Na8+ Bb6+ Bc5 Rb7 Bd8 Qe5 Rc7 Qa6 Bf6 Ne3 Bh8 Nc4 Nf6 Qh5 d7 Qf5 Qd2 Bd1 d8Q Bb3 Q8d3 Qh5 Rhf1 h1B Bd4 Bg2 Rh1 Qg5 Rh2 Nh1 Q3c2 Rd3 Rh6 Bh3 Qe2 Qe5 Bf7 Qe8+ Kd5 Qa4 Be8 B6c5 Rd1 Q4b5 Ra1 Bg4 Re1 Bh3
1Q2B3/p2b1q2/1RB1n2b/3r4/1rp1RNq1/b1nNr2R/1BN1Rp2/1k1K1b1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Kd6 e4 c5 g4 f5 g5 h5 e5+ Kd5 b6 Ke4 d5 h3 e6 c3 e7 h4 e8R+ Ne7 b7 c4 g6 f3 b5 f4 g7 f2+ Ke2 c2 g8B f3+ Kd2 h2 b6 h3 d6 Qc7 d7 Rh5 d8R Bd7 Ra2 Na6 b8N Nc5 b7 Ne6 Bb2 c1B+ Kc2 Bfh6 Ne2 Rd5 Bg2 f1B Na6 Rb8 Bf7 Ke3 Nb4 f2 Bg6 Qf4 Na3 Qg4 Bh8 Bb2 Nf4 Bc1 Nbd3 Bb2 Rg1 h1R B2e4 Bc1 Bb2 h2 Rg2 Rg1 Bf3 h1Q Rg3 Qhh5 Rh3 Qhf5 Rc8 Rg2 Rc6 Qf7 Rb6 Rg3 Bh1 Ra5 Bc6 Nd5 Bh5 Nc3 Qf3+ Kd4 Qh1 Re3 Bg6 Rb5 Re7 Rb4 Bh5 Rg8 b8Q Rg5 Bg6 Qff5 Be8 Qf7 Ba1 Rd5 Rb2 Ne2 Kd1 Kc3 Ra2+ Kb3 Nc2 Ba3 Bb2 Nc3+ Kd2 Nd4 Re4 Ne6 Ra1 Nc7 Re1 Ka2 Re2 Ne6 Kc1 Nb5 Kd2 Kb1 Kd1 Nc3+
1r4Bk/p3n2p/nq6/1b1brQp1/Kn1Q3b/2NR3Q/1qN2RRB/2b1QB2 w - - 0 1 illegal: No proof kernel
2N1b3/4p2r/q4Q2/bbb2p1K/2nNnR2/2NBrQ2/bB4p1/RR1b1NkB w - - 0 1 illegal: No proof kernel
K2nQn2/1q1N1Qbn/RBN2R2/1NQ1n2b/2Rr1N2/rpp3b1/3pB3/6kb w - - 0 1 illegal: No proof kernel
1Nk3BB/n1nNR3/NK2bn1B/2Q1b2r/1n4p1/3QB1rp/b2pR3/1qb4R w - - 0 1 illegal: No proof kernel
R2q3K/Nn3r2/3Q2B1/1RQ1p1B1/B1Qb2p1/n3nbpN/2Bk2Nr/1r3nr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 f4 b5 c4 e5 h4 b3 a4 b4 h5 b2 a5 d6 a6 d3 a7 g3 h6 d2 h7 b3 c5 g4 c6 Bg7 c7 Bf8 Nc3 b1R Nh3 b2 Bb5 Qe8 Qe2 d1R Ba4 Rd3 Nb5 Rd2 Qc4 Qd8 Rg1 Bd7 c8B Ne7 Rf1 Rg8 h8N Nbc6 Ng6 Na5 Nh4 Rh2 Ng2 Rg7 Rd1 Nb7 Rd5 Rb8 a8B Bc6 Na7 Rf7 Bc2 Bh6 Bd7 Bg5 Be3 Rg1 Ra5 b1N Rb5 Kg7 f6+ Kh6 f5 Na3 Bd2 Be3 Ra5 Ba4 Rdb5 Nd5 Be8 Kh5 Bc6 Bf2 Bg5 Bd4 Be8 Ne3 Bd7 Rf8 f7 Nf1 f6 d5+ Kf5 Bb3 Be8 Ba2 Ba4 Bb3 Ke6 Bd1 Bc2 Bf3 Ra4 Rg8 f8Q+ Rg6 Bd7 Rg7 Qfc5 Rf7 Raa5 Bf2 Kf5 d4 Bc6 d3 Ra4 Re7 f7 d2 Kf6 d1N Kg7 Bd4 Be8 Rd7 Kh8 Nde3 f8Q+ Rf7 Ra6 Qd5 Ba4 Qd8 Raa5 Kg6 Qfd6+ Kf5 Ra6 Na5 Bd5 Nb7 Be6+ Ke4 Bc8 Be2 Bf5+ Kf3 Bfc2 Bd1 Qce6 Ke2 Qec4+ Kd2 Nc8 Bf3 Ra8 Na5 Na7 Rb6 Qf8 Nb7 Qcd6 Rc7 Beg6 Rf7 Qdc5 Qd7 Qfd6 Qc7 Ra5 Rb1 Rb5 Qd8+
k1n1n1bQ/1b3bbB/8/1prR2NK/q1NB1B1R/pp2R2Q/3N1n2/2B2nr1 w - - 0 1 illegal: No proof kernel
b2Q3r/1NK1p1B1/2b1kpQR/R1p3n1/rbr5/1B1r2B1/2nbN2q/Q5BR w - - 0 1 illegal: No proof kernel
1Br1Nr2/1p3R1Q/2r2n2/5R1n/B3b1Q1/kN1brB1p/1bB1RK1p/3q1bQ1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Kd7 g4 Kd6 d4 h5 e4 f5 g5 c5 e5+ Kc7 d6+ Kc6 g6 c4 e6 h3 d7 c3 d5+ Kc5 a5 b3 g7 Kb4 d6 f3 e7 h2 e8B h4 a6 f4 a7 c2 Bd3 b2 Nd2 b1B Nb3 h3 Ne2 Qb6 d8Q Be6 d7 Ne7 g8B Bh6 Ng3 Qd6 Rf1 Bd5 Ra5 Bg7 Qc7 Ng6 d8Q Nd7 Qg5 Nf6 Nh5 Be4 Kf2 Rc8 Bd5 Rf8 a8R Qd7 Bb2 c1R Be5 Rc6 Qg1 Bh8 Ng7 Qd6 Bb5 Bbd3 Ba4 Ka3 Bd7 Rfe8 Bf5 Re7 Ne8 Re6 Ke1 Qd8 Qh7 f2+ Kd2 f3 Ke3 Bg7 Bb8 Nf4 Re1 f1B Re2 N4h5 Kf2 Nd7 Bg6 Bb2 Qg4 Ndf6 R8a6 Bg2 Qg1 Bf1 Bf5 Rc3 Rd6 R3c6 Rd7 Re5 Ke3 f2 Rf7 Bfg2 Rc5 f1R Rb5 Rf4 Rc5 Bf1 Rb5 Bf3+ Kf2 Re3 Bg6 B3g2+ Bf3 Qd5 Na5 Qb3 Rf5 Qd1 Nb3 Rfc4 Nc7 Rf8 Ne8 Rc8 Ra5 R4c6 Bf5 Bb5 Bc2 Bd3 Rf5 Be4 Rd2 Bfd3 Re2 Bf1
2Q1NK2/2Q1r3/2B2b2/3p1p1q/1rn1n1R1/bNB3R1/n1rQQp1p/1kB2R1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 d5 c4 a5 b4 f5 b6 d3 c5 h6 Kg6 f3 Kf7 h3 b5 d2 g5 h5 b7 f2 b6 h4 c6 h2 c7 a4 g6 a3 g7 a2 Nh3 Ra7 Rg1 h1R Nf4 h3 Rg4 Nf6 g8R Na6 b8Q h2 b7 Nb4 Ne6+ Ke3 Qc2 Rh4 Ng7 Ne4 Ne8 Qg5 Qd1 Bd7 c8Q Ba4 Qbc7 Bc2 b8B Qh5+ R8g6 Kd4 Qe1 d1N Nd2 Bc5 Nb3+ Kc4 Rg3 Ne3 Qd2 Bd3 Rb1 a1B Kg8 Rb7 R6g4 Na2 Ba7 Bg7 Bb6 Rg1 Ba5 Bf6 Bc3 Rb4 Nd4 Rb2 Nb3 Rc2 Ra1 Kb5 Rb1 Ka4 Ra1 Nc4 e3 Ned6 e4 Ba3 e5 Be4 e6 Bh1 e7 Ne4 Be2 Re1 Kf8 Bb2 Bd1 Ka3 Rb1 Nb4 Be2 Ka2 Bd1 Ba3 Be2 Ne3 Bb5 Nc4 Bc6 Re2 B1b2 Re3 Rf1 Re2 Bc1 Kb1 Nd6 Na2 e8Q Ng5 Qe4 Re1 Qed3 Re7 Q3e2 Ne4 Ne8 Ned6 Rg8 Rd4 R8g4 Ne4 Nc5 Na5 Nb3 Rb4 Qcf4 Nc4 Qd6 Rb8 Qdc7 Rb4
4R3/NkpqB1K1/1r1QN1B1/1p1b2bp/1B1R1nBn/8/r2b1Qp1/3nrN1Q w - - 0 1 illegal: No proof kernel
N1n2r2/pQ4K1/2rp2nB/1Np3p1/Bb4nk/3NQB2/RN1qQ1r1/1bR3b1 w - - 0 1 illegal: No proof kernel
1q4r1/1N1Qb2R/2Q1K1k1/1N1pB2r/N2QN3/1b1ppB2/3qn1pR/3Bn1qb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 b5 Ke4 e5 Kd5 g5 a4 e4 c4 d6 h4 b3 f4 b2 a5 e3 f6 b4 c5 g3 a6 g2 c6 g4 a7 g3 c7 b3 h5 Bh6 f5 Bg7 h6 Qe7 h7 Qf8 Nf3 g1Q Be2 Nd7 Nfd2 Qe8 Rh2 Qd8 Na3 b1B Nb5 b2 Ne4 Rb8 a8B Nh6 Ra7 Rg8 h8Q Ba6 c8Q Bb7+ Qc6 Nc5 Qd3 Bc2 Bd1 b1Q Bb2 Qd7 Bc3 Bf8 Ba1 Ke8 f7+ Ke7 Qd2 Nd3 Qg7 Ne1 f6+ Kd8 Qg4 Be7 f8N Ke8 Ne6 Kf7 N6c5 Nf5 Na4 Qb2 Qh3 Kg6 f7 d3 Qc3 Qd8 Ke6 Bb3+ Q3c4 Qc1 Be5 Qd2 Q4d5 Rh8 Qdc4 Rh5 f8N+ Kh6 Nd7 Kg6 Ndc5 Nd4+ Kd5 Qh8 Qd7 Ne2 Ke6 Qd8 Qa6 Bc6 Nb7 Qc7 Qb6 Rg8 Qd4 Qb8 Ng5 Bh1 Ne4 Bc2 Qcc6 g2 Na5 Qc3 Rc7 Qd2 Nb7 Bh4 Qc8 Bf6 Rh7 Be7 Q8d7 Bb3+ Qcd5 Qc2 Nf2 Ng3 Nbc5 Bh4 Q5c4 Qc1 Baf3 d5 Nb7 Qd2 Qcc6 Ne2 Ne4 Be7
2BRq3/2brQ3/3bqBp1/1qk2bRn/2rNn1Qp/2R1p3/pN2N1B1/1R4K1 w - - 0 1 illegal: No proof kernel
6Q1/k1b2NpQ/r1q3R1/8/1pRK2p1/BQ3nN1/qpb3N1/Q1qrrnBB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 e4 b5 d4 c5 a4 Kc7 h4 Kb6 a5+ Ka6 h5 f5 e5 c4 d6 c3 e6 f3 Ke3 c2 d7 b3 d5 f2 h6 f4+ Kd4 f3 e7 Ra7 e8Q Kb7 h7 b4 a6+ Ka8 d6 Qc7 d8N Nf6 d7 Bd6 Nh3 Nd5 Bg2 f1R Qg8 f2 Nd2 Qc6 Nf7 Re1 d8B f1Q Ba3 c1Q Bb6 Qe2 Nf4 Bc7 Rh6 Bf5 Ne4 Qa2 Bh1 Ne3 Ng2 Nf1 Ng3 Bc2 Qd3 Rd1 Rg6 Re1 Bc5 b2 Qb3 Qe8 Rb1 Nd7 Ra1 Nf6 Bb6 Qg5 Rc1 Ne4 Bc5 Ned2 Bb6 Bb1 Rc4 Bc2 Bc5 Kb8 Bb6 Ra8 a7+ Kb7 Bc5 Qc6 Bb6 Rd1 Bc5 Re8 Bb6 Ka6 Bc5 Ree1 a8Q+ Kb5 Qae8 Ka6 Qee3 Kb7 Qg1 Qh6 Qe8 Rf8 h8Q Ka6 Qe6 Ra8 Qh7 Kb7 Qe8 Ra6 Qeg8 Qg5 Bd6 Kb6 Bf4 Ka7 Be3 Qa1 Qgh2 Qc1 Bg1 Qa5 Q2h3 Qaa4 Qa2 Qb3 Qa1 Qa2 Ne2 Ba5 Qb3 Bc7 Ng3 Nf3#
3qbBBR/QK4pR/1N2r1pN/pbN3b1/1rR5/2B1R3/2qnQp1k/q4n2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 g6 hxg6 axb5 Qf6 Kf2 Qb6 Ke1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 b4 f5 h4 Kg3 e4 a5 c4 f3 h5 d3 b6 d2 e5 d6 c5 f2 e6 f4 b7 f3 e7 Na6 Kc6 d5 e8R d4 b8B+ Nc7 b5 d3 b6 Bd7+ Kb7 Nf6 h6 Rh7 c6 Bd6 Ne2+ Kg4 Ba3 Ng8 Re3 Nd5 c7 Bb4 c8N Be7 Ng3 Be8 Be5 Ra6 Nf5 Bg5 Nc3 Ngf6 Na4 Ne4 Qe2 d1Q Nc5 d2 Rc1 Qc2 Bc3 d1Q Rh5 Rh8 h7 Nd2 Nh6+ Kg3 Bg2 Rf8 h8R f1B Bh3 Rf4 Be6 Rb4 Bg8 Qb2 Rh4 Qa1 Rh7 Qc2 Rc4 Bh3 Rh1 Bf1 Rh8 Nf6 Na4 Nb1 Kb8 Qb3 b7 Bg2 Qf1 Rc6 Ng4 Nh5 Rd4 Rbc4 Bf8 Re6 Nc5 Qc2 Ka7 Bh3 Nb6 Nd2 Rde4 Rb4 b8Q+ Qd6 Qd3 Bf1 Kb7 Be2 Rf4 Qd8 Qa7 Kg2 Rfe4 Ng3 R1h7 f2 Nh6 Kh2 Rf4 Ngf1 Rd4 Nb3 Qd2 Bc4 Qe2 Bcb5 Rc4 Nbd2
B1rb3n/q3pK1k/4QBRp/2Q4r/b1BqbnR1/nQ1p4/1pN5/3NQN2 w - - 0 1 illegal: No possible last move
bbQRB1N1/1q1p3r/k4Nbn/p1p4B/r3n3/R2q1n1N/2QpRB2/3K3N w - - 0 1 illegal: No proof kernel
2q2K2/2p3N1/1R2pbB1/1b2NqBN/bR2p1rQ/1n3Rpq/nkB5/1N1r1Q2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 g3 f4 g2 h4 g6 h5 b3 h6 b4 a5 b2 h7 b3 a6 Bd7 f5 Nf6 a7 Nh5 f6 Bc8 f7 Nf6 Nh3 Bd7 Ra6+ Bc6 Rb6 Qc8 Bd3 Nfd7 Qf1 Na6 Bc2 Rg8 h8Q Bh6 f8R Ndc5 Rf3 Nb4 Nf4 Na2 Nh5 Bg5 Rh4 g1Q+ Kc4 Qg2 d4 Rb8 a8B Bf6 Bg5 Qgh3 Rhf4 Qce6 Qh6 Rbd8 Qh7 Qc8 Rg4 Kd7 d6 Ke6 d5+ Ke5 d7 Ba4 d6 Rg7 Bd5 Rgg8 Bf7 Rg7 Na3 b1Q Be8 b2 Qh8 Qe1 Nb1 Nb3 Rgf4 Qf2 Bf7 Re8 d8N Rgg8 Ne6 Rd8 d7 Rg7 Rg4 Rgg8 Rd3 Qf5 Rf4 Rg7 Rff3 Rgg8 Neg7 e6 Rd4 Na5+ Kc5 Bb5 Bh6 g5 Bg6 g4 Bg5 g3 Rb4 Ba4 R4b5 Nb3+ Kc6+ Kd4 Qh7 Rdf8 d8N Rf7 Qh6 Rd7 Nf7 Rdd8 Ne5 Rd5 Nf4 Rdd8 Qh4 Rd7 Na3 b1B Nfh5 Rd5 Bd1 Bd3 Bc2 Kc3 Nb1+ Kb2 Nf4 Qa6 Nfh5 Rc5+ Kd7 Rc4 Bd1 Rc1 Bc2 Rd1 Qe1 Rh8 Qf1 Rh6 Ke8 Qc8+ Kf7 Bc4 Rb4 Bcb5 Be3 Be8+ Kf8 Beb5+ Be8 Rg6 Bf4 Rg4 Bg5 Qb7 Bg6 Qc8+
1B2B2K/p1N1p3/B2nRrb1/r3N1k1/p3QR2/2bqnn2/2pQqqN1/5RR1 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 Ke2 Kf7 Ke3 Kg6 Kf4 h5 b4 c5 d4 e3 g4 c4 b5 e2 b6 e1Q g5 c3 d6 c2 d5 h3 b7 h2 d7 h4 d6 h3 Qg4 Rh5 Nc3 Nc6 b8N Rh4 Nb5 Qc7 d8R Qc3 Ne2 Qb2 Rg1 h1Q Nd7 h2 Ne5+ Kg7 d7 Rh8 Kf5 Rh5 f4 Qb7 Nc7 Nf6 Rb1 Rh7 g6 Kh6 g7 Q2b5 g8B Q7b6 Bf7 Bg7 Be8 Qf2 Qg2 Rh8 Qe4 Ng4 Ke6 Qhg2 Kf7 h1N f5+ Kh5 f6 Ng3 Bf4 Nf5 Bg3 Qa6 Nf4+ Kg5 Bd3 Qh2 Rbf1 Rh5 Kg8 Nd6 f7 Ne3 f8R Nd4 Ng2 Nf3 Rf4 Bb7 Be2 Qd3 Rc8 Rb8 d8Q Ba6 Qd7 Rb6 Rb8 Rc6 Rb6 Bc8 Qd8 Bf5 Ra6 Bg6 Rb6 Qd2 Ba6 Qd3 Qd7 Nf7 Qdd4 Rf6 Re6 Nd6 Qc3 Qfe2 Qd2 Bh8 Ne1 Qhf2 Ng2 Rf7 Nc6 Bc3 Ne5 Rf6 Bh2 Bh7+ Kh8 Bg6+ Kg7 Bb2 Ng4 Qd1 Nd5 Q1e2 Bg3 Nb7 Kg8 Nh4 Rf3 Bc3 Bb8 Nd6 Rf4 Nf3 Nc7 Rh2 Qc6 Kh5 Qe4 Rh3 Kh8 Rg3 Nh2 Rg5 Ng4 Ra5 Ne5 Kg5
2RrBk1b/1NB1p1pp/q5np/2n4B/QR4K1/1Q1N1b1r/6b1/R1Rb1Qb1 w - - 0 1 illegal: Other
3QbnrQ/QpBRR3/6kp/pK3N1q/1NrR3b/5b2/1p2b1n1/b2NN2B w - - 0 1 illegal: No proof kernel
5b2/pnp2K2/nnp1B2k/Q2bNQ2/BQN1npQr/2BR4/1N1qr3/1n4R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 c4 exf4 c5 Nf6 c6 dxc6 Qa4 Ng8 Qb3 Ba6 Qd1 Bc8 Kf2 f5 Kf3 Kf7 g4 Kg7 d4 h5 b4 h3 e4 h2 g5 h4 g6 h3 d5 Qd6 e5 Be7 b6 Na6 b7 Qf6 b8Q Bf8 d6 Qh4 d7 Bd6 d8Q Ne7 e6 Rh6 b5 Nb4 b6 Ng8 e7 Qg5 e8N+ Kf8 b7 Bd7 Ra3 Rh4 Bb5 Na6 Qbc8 Be6 b8Q Nf6 Bb2 Nd7 Bc3 Nb6 g7+ Kg8 Ba4 Kh7 g8B+ Kh6 Qc2 Bf8 Qdd2 Bd5+ Qe4 Qd8 Nd6 Qg5 Qbb7 Rb8 Qd7 Re8 Nc4 Re7 Nb2 Re5 Kf2 f3 Qg4 Re2+ Kg3 f2 Nf3 Qe3 Rg1 h1N+ Kh2 f4 Be6 Qd4 Ne5 Ng3 Qe1 Qe3 Nd2 Nf5 Ndc4 Qd2 Qf7 Nd6 Qff5 Nc5 Qa6 Ndb7 Qa5 Na6 Bb4 Re3 Rd3 Re4 Bc3 f1N+ Kh1 h2 Qb1 Qe3 Kg2 Qd2+ Kf3 h1N Nd6 Bb3 Ndc4 Re2 Qe1 Ne3 Ke4 Nf2+ Kd4 Nf1 Qb4 Ne4 Qa1 Neg3 Qaa3 Ba2 Qa5 Ne4 Q3b4 Bb3 Ng6 Qd1 Ke5 Nec5+ Kf6 Ne4+ Kf7 Nfd2 Na3 Nb1 Ne5 Bd5 Nac4 Qd2
q2Q1KQr/1b1R2QN/3p1R1N/8/1R2rbBk/2p2p2/nb1b1pB1/nnR1B3 w - - 0 1 illegal: No proof kernel
1nk2bN1/2n1pR1K/1B2p1rb/Np1b1B2/np2NQQr/Q7/q3B3/2bN3R w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 fxe6 cxd5 Rh3 Bd3 Rh7 Bf1 Rh8 Ke2 Kd7 Ke3 c5 Kf4 b5 Kg5 g3 Kg6 c4 h4 c3 a4 g2 d4 c2 f4 Ra6 h5 Ra5 f5 Kc7 h6 Na6 f6 Kb7 f7 Nc7 h7 Qe8 d6 Nf6 d5 Ne4 d7 Qd8 d6 Ng3 Ne2 g1N Be3 c1B Nd2 Ra8 a5 Nf5 a6+ Kb8 a7+ Kb7 Nc3 Rg8 h8N Ba3 Be2 Bb2 Nde4 Nd4 Kh7 Nc6 Bb6 g5 Rc1 Qe8 d8Q g4 d7 g3 Qd3 g2 Rf1 Rb8 Nd1 Bc1 Qa3 Rg6 Rf6 Ra8 Rf5 Nb8 Rf4 Bg7 f8Q Bh6 Qf5 Bf8 Rf3 Bch6 Qg4 Bc1 Nf7 Bch6 Bc4 Ne2 Qf4 Nc3 Be2 g1B Rf2 Bg5 Nh6 Na4 Ng8 Bgh6 Qg4 Bc1 Rf7 Bge3 Qf4 Ka6 Qg4 Bb7 Qc8 Bed2 d8N Bdh6 Nc6 Qd8 Na5 Qd5 Qd8 Qa2 Qd2 Bc6 Qdf4 Bd5 Nc6 Kb7 Na5+ Kc8 Nd2 Nc6 Ne4 Rb8 a8B Rb7 Bd4 Nb8 Bf2 Rb6 Bd4 Rd6 Bb6 Bb3 Bd5 Rd7 Bdc4 Rd4 Bcd3 Bc4 Nc5 Bd5 Bf5 Rd3 Ne4 Rh3 Bf2 Rh2 Bb6 Rh4
B1Q3R1/2p1K1b1/3bQNR1/7R/k4prn/N3Bq2/bpp1b2r/n1Q2nQB w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 exf4 b4 axb4 Qc2 d5 Qd1 dxc4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 f5 d4 g5 a4+ Ka5 e4 b5 h4 g4 h6 g3 h5 g2 h7 b3 h6 b2 d5 c3 d6 f3 d7 b4 Ke6 b3 e5 f4 Nh3 g1B Na3 b1B Bg2 c2 Ng5 b2 Rh5 f2 Ne4 f1N Bh1 Ra7 Nf6 Ba6 Be3 Bf2 Qc1 Ra8 Ra2 Kb4 a5 Be2 a6 Ka4 a7 Nc6 Ra1 Rc8 a8B Na5 Kf7 Nb3 e6 Ba2 e7 Bh4 e8Q Bg7 Qe6 Ne7 Rb1 Rg8 h8Q Ng6 h7 Bg5 Ra1 Nh4 Rb1 Rb8 Ra1 Qc8 d8Q Qb7 Ke7 Qf3 Qdd1 Rbd8 Rb1 Na1 Qe1 Rd5 Qf2 Rd2 Qg1 Rb8 Qhc8 B5h6 Ng8 Be5 h8R Bhg7 Nf6 Rb3 R8h6 Rb5 Rg6 Rb8 Qb7 Rg8 Qb8 Bec4 Qbc8 Rh2 Qd2 Ba6 Rd1 Bb5 Qc1 Be2 Rd8 Bh8 Rgh6 Rg4 Rg8 Bg7 Rg6 Bd6+
6Qr/rRp3b1/k1BN1B2/3K2Nr/p1R3r1/p1pR1Qnb/b1n1q3/1Q2B2R w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 dxc4 h5 f5 exf5 g6 Qe2 gxh5 Qd1 h4 Ke2 Kd7 Kf3 Kc6 Ke4 Kb6 b4 a5 f4 h5 d4 e5 g4 a3 b5 h3 g5 h2 d5 h4 f6 c3 d6 h3 g6 a4 f7 Bh6 f8Q Ra6 d7 Ra7 g7 Rb7 f5 Na6 f6 Bg5 f7 Rh5 Bg2 Bh6 Kd5 Qe7 d8B Ra7 Nf3 e4+ Ng5 e3 Nd2 e2 Ne4 e1R Nd6 Re4 Bd2 Rg4 Qb1 Qe2 Be1 Ka5 b6 Nb4+ Kc5 Ka6 b7 Be6 b8R Ne7 g8Q Bg7 Rb7 Ba2 Bc6 Nf5 Bf6 Ng3 Qa8 Nc2 f8R Rh8 Re8 Rh5 Re4 Rh8 Rc4 Rh5 Rg1 h1R Kd5 h2 Rf1 Rg1 Rf3 h1B Qaf8 Bg2 Qff7 Bh3 Rd3 Rh8 Qh5 Rh4 Qf3 R4h5 Qb3 Qd1 Bf2 Qe2 Rb1 Rg2 Rh1 Nf1 Be1 Rg4 Qb1 Ng3
4R2b/1p1R1n2/2p2n2/4ppQ1/Qq1rkb2/N3B2r/NQb1B3/nR1Q1bKN w - - 0 1 illegal: No proof kernel
NBBn1R2/3BK3/1b1r1qQn/Rq3Q1Q/p3pb2/3k1b1r/1Rp4p/bB1N4 w - - 0 1 legal: proof: e4 b5 c4 d5 a4 bxa4 h4 dxc4 e5 g5 hxg5 f6 Ke2 fxe5 Ke1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Ke5 a5 g4 c5 b4 h5 d4 e6 f4 e3 g6 e2 g5 e1B g7 a3 d5 a2 f5 h4 d6 h3 f6 h2 g6 Rh6 d7 Be7 f7 Qb6 f8Q Rh4 d8R Qb7 Qh5 Qg2 Bd3 Rf4 Qff5 B7h4 Kd6 e5 Nd2 e4 Rf8 Rf3 Bb1 c3 Ne2 c2 Nc4 Beg3+ Bf4 c1Q Nb6 Nh6 g8B Qgf1 g7 Qc3 Be6 Qf6 g8B Nc6 Bh7 Ra6 Na8 Rb3 Bg6 Bg5 Be8 Bf2 Bd7 Rh3 Rg1 Rb6 Rg2 Ba6 Bc8 Nd8+ Kd7 Bg1 Bb8 Bf4 Ke8 Rc6 Bed7 Kc4 b5 Rd6 Nc3 Bd4 Rc2 Kd3 b6 c4 b7 Bb6 Nd1 c3 Qfg6 Bc4 Qhf5 Be6 Qfh5 Bg4 Qgf5 Qh8 Ke7 Bf3 Rb2+ Kd4 Ba7 Qb5 b8Q Kc4 Qc7+ Kd4 Bb8 a4 Qc6 Rd5 Qcg6 Rd6 Bc2 Kc4 Rc1 a1B Bb1 Kd4 Rcc2 Kd3 Rf2+ c2 Rd2+ Kc4 Rd5 Qd4 Re5 Kd3 Rc5 Qb3 Ra5 Qb5 Qe5 Qc3 Qef5 Qf6+
3R2q1/2Q1K2n/pBq1RRnB/b2N2np/3r3k/N5R1/p2rB2p/Q1Qb3n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 e4 h5 b4 c5 d4 h3 g4 a6 d6 a3 d7 c4 Ke6 c3 b5 c2 d5 a2 b6 h2 b7 Nf6 e5 Nc6 b8Q Bc5 d6 Ra7 Nh3+ Kh4 g5 f3 g6 f2 g7 f4 g8R f3 Nf4 Bb4 Rg3 Ba5 Be2 f1N Qc7 f2 Na3 Nh7 Nd5 Ne7 Bh6 Ng6 Qc1 Nd2 Re1 f1N Kf7 Ne4 e6 Rb7 e7 Rb4 e8Q Rd4 Qe5 Qg5 d8R Bg4 d7 Rg8 Rf3 Nfg3 Rf6 Nh1 Rg1 Re8 Rg3 Re6 Rb1 Rd6 Rb6 Rd2 Qeb2 Rd4 Qca1 c1Q Qbb1 Qc6 Qc1 Ngf8 Ke7 Qg8 Rbb3 Neg5 Rbe3 Bf5 Ree6 Bc2 Rb8 Bd1 d8B Qb5 Qb7 Qc4 Bb6 Qc6 Rd8 Rd2 Qc8 Rd4 Qc7 Rd2 Nc3 R6d4 Nd5 Ng6+
1n1kbBB1/2rq1pQb/B1bbp1pr/n2N2N1/1pR3N1/2q1R2Q/2KN1Q2/8 w - - 0 1 illegal: No proof kernel
b3n3/p1N2q2/1brprkpQ/1Q5p/Kn4b1/B1b5/1RRB2Bq/Q1RN3R w - - 0 1 illegal: No proof kernel
4bR1n/k2n1QNp/2ppr3/3b4/4pqNN/pQ1Qr1BK/1Q2R2R/n5bB w - - 0 1 illegal: No proof kernel
R2nq2N/n2r1RKR/6B1/2Q2Qpr/2p2ppQ/B2q1p2/B2b1qbR/3k1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Kd6 b4 Ke5 h4 Kd4 h5 c5 h6 f5 b6 a5 e5 a4 h7 f3 Kg3 a3 Kf4 g6 b5 a2 e6 c3 b7 c2 e7 Qc7+ Kg5 f4 e8B Bg7 b6 Be5 Bc4 Qc6 Nh3 Qe4 Qg1+ Qe3 Ba3 c1Q Rh2 Nf6 Kh6 Bf5 Kg7 Qe1 Ng5 Q3f2 Nf7 Nc6 b8Q Ra7 b7 Bd3 Qc8 Nd8 b8R Rd7 Ra8 Bf1 d3 Ke3 d4 Qc3 d5 Bg2 d6 Qd3 Nd2 Ke2 Nf1 Bc3 Rd1 a1Q Ba2 c4 Rb1 Qc5 Rb7 Qe1 Rba7 Qc6 Qc5 Kd1 Qf5 Qa4 Qcc5 Bd2 Rc7 Ng8 Rb7 Rc7 d7 Ne7 Rba7 Nc8 Rb7 Nc6 d8Q N8a7 Qh4 Rd7 Rc7 g5 Rb7 Rf8 h8R Nd8 Rh7 Qf2 Rc7 Rd5 Nh8 Rd7+ Bf7 Re8 Rb7 Re6 Rc7 Rh6 Rb7 Rh5 Rc7 Rd5 Bg6 Qe8 Rf7 Rd7
1k1B2R1/2pq2Qn/4pp1p/N1NB4/1r2p2n/1b2KN2/1r2RN2/bB1bQ1Rq w - - 0 1 illegal: No proof kernel
3R1br1/2p2Q2/B1p2qrk/3NK2p/prQR4/2Bp1Q1q/1N1nn3/1bN1BB2 w - - 0 1 illegal: No proof kernel
2n1b3/Bp2p3/NQB1B3/R1q4k/nr4p1/qb5p/Np1r1b1Q/NK2NQ1R w - - 0 1 illegal: No proof kernel
q1R3Bb/K2b1nk1/2N3B1/B4Rn1/2Rr4/Q1r2Rnq/N3q1b1/qR5R w - - 0 1 illegal: No possible last move
N5k1/1b3rNr/1BB2q1Q/1B2Rp1R/n1b2rb1/Bn1nK1BR/3b4/q6B w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 c5 g4 h5 e4 f5 d4 Kf7 b6 h3 g5 b3 d6 f3 b7 h4 e5 c4 e6+ Kg7 e7 c3 e8B b2 g6 h2 d5 h3 d7 c2 d6 Ra2 Na3 b1B Ke3 f2 Qd2 Na6 b8B Ne7 Nf3 Rh7 Bb5 f1R Nd4 Nc6 Ne6+ Kg8 g7 Nd4 Nc4 Nc5 Nb6 Rf4 Na8 Ra7 Ra5 Qf6 d8R Rf7 d7 Na4 Ba3 c1N Bc6 Be4 Re5 Ba6 Rc8 Bed3 d8B Bb7 Bb6 Bc4 Rd8 Ndb3 Rd3 Bd6 Bb5 Bf3 Bec6 Bg4 Rc3 Nd3 Qc1 Rh4 B8c7 Bb4 Qd2 Kh7 g8B+ Kh8 Ng7 Rh7 Qe1 Ba5 Qh4 Bb4 Qh6 Ba5 Rd1 h1B Bb8 Bg2 Rh1 h2 B8c7 Rf8 Bgd5 Rf7 Ra1 h1Q Rac1 Qh2 Rh1 Kg8 Bf3 Qg3 Rh5 Qh2 Bb8 Qh1 Bbd6 Qa1 Bfd5 Bf1 Bh1 Bd5 Rc2 Bc4 Rch2 Bg2 R2h3 B2f3 Bdb4 Bfd5 Be1 Bb4 Bg3 Bg2 Be8 Bb7 Bec6 Bd2#
1B1r4/BB4Np/1brN1kr1/2n5/Q1RrB3/Rrq2KnB/1B5r/1bn3N1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 d4 c5 g4 f5 e4 c4 d6+ Kf6 b6 b3 b7 b2 d5 f3 d7 f4 d6 c3 Ba6 c2 Ra3 h3 Nd2 b1R Nc4 Qc7 d8N h2 d7 Ne7 Nd6 Nf5 Bb2+ Qc3 Ne6 c1N Ng7 Ng3 Qa4 Rg8 d8B+ Be7 Bd3 Nd7 b8B Nc5 Bb6 Bd8 B6a7 Bf5 Ba6 Bb6 g5+ Ke7 g6 Kf6 Bb7 Rd8 Bc7 Rac8 Bcb8 Rc6 e5+ Kg5 e6 Kf6 Ba1 Rb3 e7 Be4 e8B Bb1 Nc8 Rd4 Bb2 Rd8 Bf7 Rd4 Be6 Rd8 Nh3 Rd4 Re1 h1R Re4 Rhd1 Nd6 R1d2+ Kg1 f2+ Kg2 Re2 Ng1 f1R+ Kh3 f3 Kg4 f2 Bec8 Rdb4 Rc4 Rd1 Bf5 f1R Be4 Rfe1 Kf4 Rh2 Kg4 Bd3 Kf3 Rdd2 Ngf5 Rdg2 g7 Rd1 g8B Rdd2 Ng7 Bb1+ Kf4 Rd5 Be6 Rdd2 Bh3 Rd5 Ndf5 Rd8 Nd6 Nd7 Rc5 Rd4 Rc4 Nc5 Bd7 Rh6 Bh3 Rh2 Kg4 Rg6+ Kf4 N5d3+ Kf3 Nc5+
4KR1Q/p2q2N1/2B2q2/2bqB2r/1k1n3N/3nNNN1/R1nRnnrN/1r6 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 f5 e4 h5 b4 f4 g5 f3 b6 d3 Kb5 f2 c4 d2 g6 h4 c5+ Ke6 e5 Kd5 c6 d6 g7 h3 e6 h2 e7 Nd7 e8N Rh6 c7 Rh7 c8N Qh4 b7 Qh6 b8R Qg6 Qh5+ Qf5 Na3 d1N Nf3 g1Q Nc2 g2 Ra2 Ne3 Nh4 Ne5 Bb2 Ne7 g8N Qe4 Ng7 N7f5 Nh6 Nd3 Ng4 Qf4 Be2 f1R Be5 Rb1 Bf3+ Qe4 Qh6 Qf2 Rd1 h1N Rd2 g1N Nh2 Ne2 Qf6 Rh6 Qd8 Be7 Qh8 Rh5 Bg2 Qf1 Bf3 Nf2 Bg2 Bf8 Bh1 Qf3 Ne7+ Ke4 Kc6 d5 Kd7 Nfd4 Nef5 Bc5 b5 Qh3 Nb4 Nec2 b6 Qg4 b7 Qf4 Ne3 Qf6 Rf8 Re8 b8N Qg2 Rf7 Rg8 Nef5 Qf3 N8c6 Qg2 Ne6 Qf3 Rf8 Rg2 Ng3+ Ke3 Rd1 Qe4 Ke8 Qef5 Rg1 Kd2 Rd1+ Kc3 Ng7 Kc4 Rd2 Qf3 Na6 Qg4 Nc7 Qgg5 Ne7 Kb4 Nce6 Qg4 Ng5 Qgf5 Rf7 Qd7+ Kf8 Ndc1 N7e6 Nb5 Rd3 d4 Ng7 Rg1 Bc6 Rg2 Rd1 d3 Ngf3 Be3 Nef5 d2 Bb2 Bd4 Ne3 Bb6 Be5 Bd4 Re1 d1Q Rh1 Qd3 Rd1 Bb6 Rd2 Q3d5 Nhg4 Nbd4 Ngh2 Qg4 Ke8 Bc5 Rf8 Ncd3 Ng5 Qh3 Ngf3 Qhd7+
BN2bKRq/bN3Qp1/qr4bB/n3rRN1/6b1/2b3b1/NB3NNk/q7 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 b4 a5 g4 h5 Qd3 hxg4 Qd1 a4 Bg2 Nc6 Bf1 Na5 bxa5 Qf6 Be3 Qe7 Bc1 Qd8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 d6 c4 g3 h4 Kg4 e4+ f3 c5 f5 a6 d3 b6 d2 a7 f4 c6 a3 e5 a2 e6 g2 e7 Kg3 e8N f2 c7 f3 b7 Nh6 b8B Nf7 h5 Rh6 Qb3 d1B Ne2+ Kg4 Bb2 g1B Nf4 Kg3 Nf6 Bg4 c8N Qe8 Nc3 Ne5 Bg2 Bd7 Ng4 Bc2 Rf1 Nc6 Qb7 Re6 h6 Na5 h7 Bg6 h8N Re2 Bc7 Rb8 a8N Be7 Rh5 Bh4 Nf7 Qh8 Nab6 Be8 Nd7 Re6 Bb6 Re7 Be3 Re5+ Kd4 d5 Kc5 d4+ Kd6 d3 Qd5 Ra8 Nb8 d2 Qb3 d1B Bec1 Rg5 Ke7 Ra6 Ncd6 Be2 Qe6 Re5+ Rg5 Bc6 Rd1 f1Q Bh1 f2 Bf3 Be8 Ng2 Bd7 Ba8 Kh3 Nb7 Bg3 Rf5 a1B Na2 Qe1 Bd4 f1Q Bh6 Rd6 Bc3 Ba7 Nf2+ Kh2 Ng5 Rb6 Rd2 Ba4 Rd8 Bg4 Rg8 Bae8 Kf8 Qa6 Qf7 Bb2 Bd4 Qa1 Bc3 Bc1 Bd4 Bd2 Bb2 Bc3
3Q4/K2R1nB1/3q1pbq/1N5q/B2Br2r/pbn3BN/kB4nB/3bR1N1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 g4 hxg4 b4 e5 c4 exf4 a5 b5 cxb5 Be7 Qb3 Bc5 Qd1 Bb6 axb6 Ke7 Ra2 Kf8 Ra1 Ke8 Kf2 Ke7 e4 Kd6 h4 g5 e5+ Kd5 h5 a5 h6 d3 b7 Kc4 b6 d5 b5 a4 h7 d4 e6 f3 e7 g3+ Ke1 a3 Kd2 g2 e8N g4 Be2 f2 Nh3 f1N+ Ke1 g1Q Nc3 f6 Nc7 g3 Bb2 Na6 b8B g2 b7 Qh2 Kf2 Ne3 b6 Nb4 Ba7 Na2 b8B Qdd6 b7 Bf5 N7b5 Bg6 Re1 Nh6 Bh5 d2 Ne2 d3 Neg1 Kb4 Bad4 Nf7 Rb1 Re8 h8B Nc3 Bg7 Ra4 Bg4 Re5 Bd7 Re4 Bc7 Qhe5 b8B Qh5 Rc1 Qh6 Rc2 Kb3 Kf3 Qc5 Bh2 Ka2 Bbg3 Qd6 Bc6 Ncd5 Rc5 Nc3 Be8 Rh4 Rc7 Rb4 Rd7 Ra4 Qe2 d1B Kf2 d2 Qd3 Bb3 Kf3 Ned5 Kf2 Nf4 Ke3 d1B Qd2 Nce2 Qa5 Nc3 Qa8 Qd5 Qd8 Qdh5 Ba7 Bc4 Kd4 Bd5+ Kc5 Re4 Kb6 B5b3 Nf3 g1Q+ Kb7 Qgc5 Nfg1 Qf2 Bd4 Ng2 Ka7 Qfd2 Rd6 Qdf4 Nc7 Qh8 Ba4 Qfe5 Rd7 Q8h6 Nb5 Qd6
2q4q/bR2B2N/3K1Rbk/4n3/NB1nBRBB/pn2r1n1/b4p2/r1B1Q3 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 g5 h4 gxh4 c4 e5 cxd5 exf4 axb5 c5 Ra5 cxb4 Ra6 Qg5 Ra1 Qd8 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 Kf7 d4 Kg7 e4 b3 g4 f3 b6 f2 g5 b2 d6 h3 g6 h4 d7 a4 d5 a3 b7 h2 d6 h3 Nc3 b1N Be2 f1N Qe1 f4 Na4 Be7 Bg4 Qe8 d8B f3 d7 f2 Nf3 Nf6 Ng5 Ng3 Nh7 Bc5+ Be7 Nd2 d8B Nb3 Rb1 Ba7 Kd6 Nfd7 e5 Nc6 b8B Ncd4 e6 Ne5 Bh4 Bd7 e7 Bf5 Rb2 Qg8 e8R Be4 Rg1 h1Q Rf8 h2 Rf4 Kh6 g7 Bg6 Bde7 Qc8 Bc7 Rb8 Ba5 Re8 g8B Qa8 Bc3 h1B Bb4 Bd5 B8e6 Rb5 Bef5 Rc5 Bd3 Rc2 Rb1 Ra2 Be4 Ra1 Rg2 Qf5 Rg1 Qf8 Rb2 Qh8 Rh1 Qc8 Rh3 Nh1 Rhf3 Ng3 Rf6+ Nd2 R3f4 Ba2 Rc2 N2b3 Rc7 Rf8 Rb7 Rf7 Bd8 Rc7 Be7 Rc3 Bd7 Rf3 Bg4 Re3
1RRrNb2/1R5n/pKQ4q/3Nk1nn/1r1RrqB1/1p4r1/3RN3/3r2RB w - - 0 1 legal: proof: e4 g5 a4 b5 b4 f5 exf5 c6 h4 gxh4 c4 Kf7 Ba3 bxa4 b5 c5 Bb4 cxb4 d3 Ke8 c5 Bb7 Kd2 Bd5 Ke1 Bc4 dxc4 Qa5 Qd3 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 Kf6 Kd4 h5 f4 d5 g4 a6 b6 a3 b7 e6 c6 a2 c5 b3 c7 h3 c8R h2 c6 h4 c7 h3 Qc2 Rh5 Ne2 Nd7 b8R Nc5 Bg2 Rg5 Rd1 h1Q Rb7 h2 Rd2 Ne4 Nbc3 Qd6 Rg1 a1R Rcb8 Rg7 c8B Ng5 Be4 Qf3 Bd7 Qh3 Bh1 Qh6 Rc8 Ra4+ Rc4 Kf7 f6 Rb4 f5 Qf4+ Qe4 Rd8 Bc8+ Ne7 Kc5 d4 Nd5 d3 Rd4 e5 Qf3 e4 Qg2 Ra4 Kb6 e3 Bd7 Ng6 Bc8+ Kg8 f7+ Kh7 f6 Rc4 Rb2 d2 Rc2 d1R Rcd2 Kh8 Qe4 Kh7 Qe8 Rb4+ Qb5 Be7 f8R Rg8 f7 Kg7 Re8 Nf8+ Be6 Nfh7 f8R Kg6 Bc8 Rg7 Rg8 Bf8 Bd7 Ne6 g5 Kf5 g6 Ke5 Rh8 Re7 g7 Neg5+ Be6 Rc7 g8N Rg7 Ngf6 Rg8 Bg2 h1N Bf3 Ng3 Bh1 Nh5 Bg4+ Be7 Rf8 Bd6 Ne8 Rg6 Nc1 e2 Rfg8 e1R Ne2 Ra4 Qc6 Bf8 Rgg7 Rc4 Rgc7 Rg8 Rc8 Rg7 Ng3 Re4 Rcb8 Rc3 Ne2 Rg3 Rg8 Re7 Rg7 Re6 Rgc7 Re7 Rcc8 Rc7 Qg6 Rc4 Qc6 Rb4+
1B1NN1N1/RN1q2KN/Q2qBrp1/4B3/r1Nb2R1/b7/2p2p1n/knn2b2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b6 g3+ Kf3 b3 e5+ Kd7 h5 b2 d6 Kc6 d7 Kd5 h6 g2 h7 c4 e6 c3 b7 g6 e7 c2 e8N Be7 Na3 b1N Nc4 Ra4 Rh4 Ba3 Qe2 Nc6 b8B Na5 Bb2 Nh6 Rg4 Nb3 Nh3 g1B Ng5 Ba6 Bh3 Rf8 h8N Nc1 Nh7 Rf6 Nf7 Qb6 d8N Qd6 Nb7 Bb5 Rh4 Ng4 Nh6 Qd7 Ng8 Nh2+ Kg2 f3+ Kg3 f2 Kf4 f1Q+ Kg5 f4 Kh6 f3 Rg4 Qd6 Kg7 Qd1 Qf1 Be3 Ra2 f2 Bc3 Ke6 d5+ Kf5 Be5 Bd4 Qe1 Qd3 Qa5 Qd1 Qa6 Qd2 Rg2+ Ke4 Be6 Kd3 Rg4 Kc3 Ra1 Qc6 d6 Qc8 Nca5 Kb2 d7 Bf1 d8N Qc6 Qa8 Qd6 Qa6 Nc3 Ra2+ Kb1 Nc4 Qd3 Rb2+ Ka1 Rb5 Nb1 Ra5 Qd5 Qb6 Qf5 Ra7 Qd6 Qa6 Qd3 Nd2 Qb5 Nc4 Qbd7+
RQB3q1/1nN5/1n2Rq1k/1K1pp1qN/Rr2p3/Nn1qBR2/rR6/3q3R w - - 0 1 legal: proof: d4 a5 e4 c5 f4 cxd4 b4 f5 g3 fxe4 f5 axb4 Bg2 g5 Bh3 b6 Bf1 g4 Bf4 Bh6 Bc1 Bf4 gxf4 g3 h3 Ba6 Bb2 Be2 Bc1 Bg4 hxg4 Qc7 Qd3 Qc8 Qd1 Qd8 Kd2 Kf7 c4 Kg7 a4 h5 a5 d5 c5 e5 a6 b3 f6+ Kh7 c6 d3 Kc3 h4 Kb4 d2 f7 b5 f8N+ Kg7 c7 g2 c8R b2 f5 h3 f6+ Kh6 f7 h2 a7 Ne7 Ne6 Qg8 f8R Nf5 Ne2 g1Q Qb3 Nd6 Nc7 Nd7 Bh3 Nb6 Na3 b1Q Ng3 Nb7 Nh5 Qd3 Rce8 Qg2 Rf4 d1Q Be3 Qg5 Re7 Rhc8 Rf3 Qg3 Qb2 Q3f4 Ra2 Qff6 Re6 Qg1 Qb3 Qg2 Rb2 Qg3 Rg1 h1Q Ra1 Qhd1 Rc1 Rab8 a8R Qgg1 Ra4 Ra8 Bd4 Qg8 Ra1 Qge3 Bc5 Qeg5 Be3 Nd8 Kc5 b4 Rc1 Nb7+ Kc6 Qd4 Rcb1 Q1d3 Rh1 Qd1 Kb5 Q4d2 Qc3 b3 Qa5 Q2c2 Qa7 Qc3 Qb8 Ra6 Rc2 b2 Re2 b1N Rg2 Qf4 Rb2 Nd2 g5+ Kg6 Bg2 Nb3 Bh3 Kh7 g6+ Kh6 g7 Qg5 Ne8 Rc6 Nc7 Rc4 Bg4 Qcd3 Bf5 Qh8 g8R Ra8 Rc8 Qg8 Rc6 Q3d2 Qa7 Qa1 Ra5 Qfe6 Nc2 Qh7 Rb8 Qeg6 Bc8 Qf6 Re6 Qg8 Ra6 Qad1 Raa2 Nd8 Qb7 Raa4 Ra8 Qd3 Qb8 Ra6 Ra4 Nb7 Rb4 Ra3 Rba4 Ra2 Na3 Rb4+
2R1N2K/b2qRb2/6p1/N1b4k/1RrNbqr1/3NQpp1/3B2q1/NBN4b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 d4 c5 g5 cxd4 g6 d3 Be3 hxg6 Bd2 g5 Bc1 g4 Nd2 e5 Nb1 d4 f3 Ne7 f4 Nd5 exd5 e4 Nh3 Nc6 Ng1 Ne5 fxe5 Rh5 Ba3 Rh7 Bc1 Rh8 Kf2 f5 Kg3 Kf7 Kf4 Kg6 h4 b5 a4 d2 c4 g3 h5+ Kh6 c5 b3 a5 e3 c6 b4 a6 e2 d6 e1B c7 d3 d7 g6 e6 b2 Ke5 f4 a7 f3 e7 b3 Kf6 Bf2 Na3 b1Q Rh4 b2 Qe1 Rh7 Ne2 Qe8 d8N Bg4 c8R Be6 Nc6 Rg7 Rb4 Qc2 Ncd4 Qc3 Nc2 Qa4 e8N b1B Bh3 Rd7 Bf5 Rc7 Qg1 Rb8 a8N Rc4 Nb6 Qb2 Ra2 Bc5 Na1 Qd7 Ra7 Bf7 Rb7 Qa4 Re7 Be3 Be4 d1B Bd2 Ra8 Nc1 Be2 Bf5 Bf1 Qf2 Bg2 Qe1 Rc2 Nc4 Bh1 Na5 Rc4 Be4 Qd7 Qf2 Qg4 Bf5 Qf4 Qe2 Kh7 h6 Bf2 Qe3 Bg1 Nb7 Ra4 Na5 Qc2 Bc3 Qg2 Bd2 Kg8 h7+ Kf8 Be1 d2 h8N d1Q Bc3 Be4 Bd2 Be6 Nf7 Ba7 Ne5 Bf7 Rb2 Kg8 Rb3 Kh7 Rb4 Kh6 Ned3 Kh5 Kg7 Bf2 Rb2 Rab4 Kh8 Qa4 Rb1 Qd7 Rb3 Rb5 Rb4 Re5 Be6 Rg5 Bf5 Rg4 Be6 Rc6 Ba2 Rc4 Bb1 Kh4 Ne6 Bc6 Qe2 Bfc5 Nd4 Kh5 Qe3 Be4
3R1R2/3bN1rp/1N1Rp1rR/1R1qN1kp/Rn1r4/r1B2Q2/4rpb1/KB6 w - - 0 1 legal: proof: h4 a5 d4 c5 b4 axb4 e3 cxd4 h5 g6 Bc4 gxh5 Bf1 d3 Kd2 Nc6 Ke1 d2+ Ke2 Nb8 Kf3 d5 Ke2 e6 f4 d4 f5 d3+ Kf2 Be7 f6 Nc6 fxe7 Nd4 exd4 Kd7 Ke3 b5 e8R f5 c4 b3 a4 b2 g4 b4 g5 b3 c5 Ra7 g6 Ra5 c6+ Kd6 c7 Ne7 g7 Qd7 g8R Rc5 a5 Qc6 d5 Ke5 d6 Kf6 Kd4 f4 a6 f3 d7 f2 d8R Qg2 a7 Rc2 a8N Qc6 Rg6+ Kf5 Rd6 Qf3 Rh6 Bd7 c8R Kg5 Rf8 Rg8 Rcd8 Rg7 Nb6 Nd5 Nc3 b1B Ra4 Nb4 Ncd5 b2 Ne7 Qb7 Qf3 Qd5+ Ke3 d1R Bd2 Rdc1 Bc3 d2 Bd3 d1R Rh4 Ba2 Rh3 Rcd2 Bb1 Rd4 Rh4 Rc2 Ra5 Bc4 Rb5 Bf1 Rhf4 Bg2 Re4 Nc6 Ref4 Ra4 Rc4 Ra3 Ra4 Rcc1 Ke2 Rd4 Ke3 Nb4 Ke2 Nd3 Kd2 Re1 Kc2 Rg6 Ne2 Rg7 Nf4 Ree4 Nfg6 Re1 Ba2 b1R Ne5 Ra1 Bb1 Nb4+ Kb2 Ree4 Bd3 Rae1 Bb1 Rg4 Ba2 Re2+ Ka1 Kh4 Bb2 R4g6 Bc3 Rb3 Bb1 Kg5 Bd2+ Rbe3 Be1 Rb3 Bc3 Ra3+
1nB2R2/Bp4pK/rR3qnq/2Q1pNRR/4pR2/3kn2p/1BN2rR1/3b4 w - - 0 1 illegal: No possible last move
RnB1Bnn1/KBr1b2k/q7/1BB5/8/1R3r1n/1nRBN1bN/Q2nqrn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 Kg7 e4 a5 c5 f3 c6 a4 b6 a3 c7 h3 g5 f4 g6 h4 b5 h2 b7 h3 b6 a2 e5 f2 e6 f3 e7 Ra3+ Qb3 Qe8 Ne2 Rh7 Bg2 f1R Bf4 f2 Rg1 h1N Bg3 h2 Bf4 Ng3 Bg5 h1N Bd2 Bh3 c8B Nf5 Qc3 Nh4 Be4 Bg2 Bf3 Qc6 e8B Be7 Be4 Kh8 Bf3 Rf7 g7+ Kh7 Be4+ Ng6 Bf3 Nd7 b8B Ngf8 Ba7 Nb8 b7 Qa6+ Bb5 Rb3 Bc5 Ra3 Bc1 Rb3 Nd2 Ra3 Rb1 a1Q Bh5 Rb3 Nf3 Ra3 Bd2 Rb3 Rb2 Qe1 Nh2 Ra3 Rb4 Rf3+ Kc2 d3+ Kb2 d4 Rb3 Ra1 Bhe8 Rc1 Qa5 Rc4 Ka3 Rc2 Ka4 Rc1 Bg5 d2 Kb4 d1N+ Bd2 d3 Qa1 Ng3 Rh1 Ne4 Rg1 Ng5 Rh1 Qe6 Ka5 Nb2 Rg1 Qc4 Kb6 Nh3 Ka7 Qe6 Bce3 Rc7 Bc5 Bh1 Rg4 Bg2 Rc4 Qh6 Rc2 Qd6 Bde3 d2 Bf4 d1N Bd2 Nc6+ Ka8 Qh6 b8R Qe6 Bb7 Qf6 Rc8 Nb8 Ka7 Nf4 Bc3 Nbd7 Bc4 Rh1 Bd2 f1N Ng3 Nh3 Ra8 Nb8 Bcb5 Qg6 Nh5 Ng3 Nf4 Rc6 Bc8 Ne2 Bb7 Rhf1 Bc8 Neg1 Ne2 Nf6 Bb7 Rc7 g8B+ Kh8 Bgf7 Kh7 Be6 Ng8 Bc8 Qa6+
2N2RN1/1B3q2/Rn3Br1/B1kb4/B1Br3N/1r1nrB2/K1q2Q1r/1r2r1bb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Kd6 e4 a5 b4 f5 c4 h5 Kc2 d3+ Kb3 h3 b6 h2 g5 h4 b5 a4+ Ka2 h3 e5+ Kc5 b7 d5 e6 d4 e7 a3 e8B d2 g6 d3 b6 f3 g7 f4 Kb3 f2 Qf3 d1R Ba4 a2 Qh5+ Qd5 Bd2 f3 Qg6 Be6 Qg2 Nd7 b8N Ne7 g8B Ne5 b7 Nc8 Nc6 Rb8 Be2 f1R Ba5 d2 Nc3 f2 Nf3 Rh6 Nh4 Nd3 Na7 Rfe1 Rf1 h1R Bf3 Nb6 Nc8 h2 Bf7 Qe4 Nd5 Re3 Nde7 Rde1 Ng8 d1R Ka3 Rg6 Qg1 Kd4+ c5 Bd5 Qg2 Bh6 c6 Kc5 c7 Qc4 Qg1 Qc2 Qg3 Bg7 Qg2 Bd4 Qg1 Ra8 b8B Rb1 Ba7 Rb8 Qg3 Bc6 Bc4 Bd5 Nd6 Rbd1 c8B Rd2 Bb7 Rb1 Re1 f1Q Nc8 Qf2 Re2 Rhd1 Re1 h1B Rg1 Qf1 Qf2 Rde1 Rg5 Rb4 Rf5 Reb1 Qe1 Rh2 Qf2 Rbe1 Rf6 Rbb1 Rf8 Rbd1 Rb1 Rd2 Rb2 a1R+ Ra2 Rab1 Ra1 Qh3 Ra2 Qf5 Ra1 Qf7 Ra2 Ra8 Bb8 Rdd1 Be5 Rb8 Bf6 R3e2 Qg3 Bg1 Qf2+ Re3 Ra1 Nb2+ Ka2 Rd3 Bac6 Rd4 Ba4 Nd3+ Ka3 Rgg2 Bab5 Bc6 B7a6 Qd2 Bc3 Na4 Ra2 Rb6 Bb7 Bd5 Be8 Rg6 Beb5 Nab2 Kb3 Qc1 Ra6 Na4+ Ka2 Qd1 Be8 R6b3 Ba5 Nb6 Ba4 Qc2+
bNr2R2/N4b2/3kBr2/6Nb/1N1nKN1B/Q1b4n/R2r1q2/1R1nNbrr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 a5 b4 h5 e4 d5 g4 f5 c4 d3 c5 a4 g5 h3 e5 a3 b6 h4 b5 h2 b7 d4 c6 h3 c7 d2 g6 a2 b6 d3 e6 Nf6 g7 Nc6 b8N Nh7 g8R Kd6 e7 Ng5+ Kf2 f3 Ke3 f2 b7 Be6 Qb3 d1N+ Kf4 d2 Be2 f1R+ Nf3 Bf7 Bc4 Nd4 Be6 Bg7 Nc3 Qf8 Nc6 Rc8 b8N Rg1 Nd5 Rh6 Ncb4 Rf6 Rb1 a1R Qa3 Ra2 Ne1 Rc2 Ra1 Rb2 Ra2 Rc2 Ne3 Bh8 N3g2 Bg7 Kg3 f4+ Kg4 f3 e8N+ Ke7 Kg3 f2 Nd6 f1B Ne4 Bh8 Kg4 Bg7 Ng3 Kd6 Nf4 Rg2 Rg1 h1B Bb2 h2 Ba1 Qe8 Rf8 Nh3 Bb2 Qb5 Bc3 Qb6 Bb2 Nc6 Kf3 Qf2+ Ke4 Nd4 Ba1 Ne3 Bc3 d1B Bd2 Bdh5 Bc1 Rd8 Bd2 Nd1 c8N+ Kc5 Na7 Rc8 Bc3 Rd2 Bb2 Nb3 Bd4+ Kd6 Bb6 Nd4 Bd8 Rh6 Bh4 Rf6 Nf5+ Kc7 Nh6 Kd6 Ng4 Bh8 Ne5 Rg7+ N5f3 Rgg6 Rg5 Bg7 Rc5 Rg1 Rc1 Bhg2 Rb1 h1R Qb3 Ba6 Qb2 Bgf1 Ng5 Bb7+ Bd5 Bc6 Qa3 Ba8 Raa1 Nb5 Ned3 Rg6 Ne1 Bc3 Ra2 Rf6 Rh8 Rc6 Rf8 Nd4 Be6 Rc8+
R3Bb2/1N2k2N/1n3bq1/b1nR1rb1/2Nbq2q/B3rNN1/r1RN1Q1K/3b4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 a5 Kf2 e5 Kg2 g5 c4 d5 h4 d3 b4 e3 c5 d2 h5 a4 c6 g3 f5 e4 h6 a3 c7 g4 f6 e2 b6 e1R b5 a2 h7 d4 b7 d3 f7+ Ke7 b6 e3 Qa4 d1Q Nd2 e2 Ngf3 Na6 b8R Qc2 b7 Nf6 Qd4 Nc5 Qf2 Nd5 Nb1 d2 Rh2 d1Q Ba3 Nb6 Nbd2 Qe4 Rc1 a1B Rc2 Bc3 Rh5 Qb1 Rd5 Bf6 Kh1 g2+ Kh2 Rg8 h8N Ra6 Ra8 Rg5 b8N Rf5 Nd7 g1B+ Kg3 Ra5 Nde5 Ra4 Kg2 g3 Nec4 Ba6 Kh3 g2 Kg3 Bh2+ Kh3 g1B c8N+ Ke6 Kg2 Bf4 N8d6 B4g5 Nb7 Ke7 Kh1 Bb5 Bh3 Ra6 Kg2 Ba4 Ng6+ Ke6 Nf4+ Ke7 Nh5 Ra5 Ra2 Bd1 Ng3 Ra4 Rc2 Ra7 Qf1 Bgd4 Kh2 Ra5 Qf2 Ra7 Bb2 Ra2 Bc1 Qc7 Bg4 Qcf4 Bh5 Qg4 Ba3 Qh4+ Kg2 Rh1 Bg6 e1B Bh5 Rh3 Kg1 Bfh6 f8N Bhg7 Nh7 Bf8 Nb3 Ba5 Be8 Rh1+ Kg2 Re1 Nbd2 Re3 Kg1 Qb5 Kg2 Qc6 Kg1 Qce6 Kg2 Qf7 Kg1 Qg6 Kg2 Qhf4 Kh2 Qh4+
2r4k/1BrR2rb/Bq2R3/Nrq2BbQ/K1bn1rB1/2Bn2r1/3B2N1/1nN5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 Kg7 c4 h5 Kc2 a5 Kb3 a4+ Ka3 f3 g5 d3 c5 h3 c6 f4 e5 d4 g6 f2 e6 h4 c7 f3 b6 d2 b7 d3 e7 h2 e8B h3 Bb5 Ra5 Bb2+ Nf6 Bc6 Rb5 Nc3 Ne4 Bd7 Nc6 b8N Be7 Nge2 Nc5 Qc2 d1Q Ng1 d2 Nd5+ Nd4 Qb1 Qc1 Bg4 d1N Qf5 Nc3 Nf4 Bg5 Nge2 Nd3 Nc6 Re8 Na5 Kh8 Qf7 Bf5 c8B Qb6 Bb7 Rc8 Ng2 Qc2 Rg1 h1R Rd1 h2 Nc1 Rc7 Be2 f1B Ba1 f2 g7+ Kh7 g8B+ Kh8 Qh5+ Bh7 B8e6 Rg7 Bb2 Nb1+ Ka2 a3 Bef5 Qcc5 Bc3 Ne6 Kb3 a2 Ka4 Nd4 Bef3 Be2 Ba6 f1R Bfb7 Rf4 Rge1 Rg1 Bd2 Bf1 Re6 h1R Bc3 Rh3 Rd2 Rg3 Rd1 Ne5 Rd2 Rc7 Rd3 Ne2 Rd7 Nd4 Bd2 Bc4 Bc3 Qa7 Bd2 Nd3 Bc3 Rb6 b5 Rbc6 b6 Rc8 Ba8 R6c7 b7 Qab6 b8B a1R+ Na2 Na3 Nc1 Rb1 B8b7 Rb5 Ba7 Nb1 Bb8 Rc6 Bd6 R6c7 Bd2 Qd5 B6b4 Qdc5 Bbc3 Re1 Rc6 Re7 Re6 Rg7
Kb1bqq2/n1r3kB/N3BRqR/R1n4R/3R2N1/2r5/bQ4Rq/2Bb2qr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 d5 e4 f5 c4 Kf7 b4 h5 g4 d3 g5 d4 b6 a4 g6+ Kg7 c5 a3 e5 a2 c6 h3 e6 h4 b5 d2 b7 h2 b6 h3 c7 d3 e7 Nd7 e8R Ne7 b8R Ra7 b7 Nc6 Ra8 Be7 b8R Nc5 Rb4 Be6 c8B Rc7 Ra6 Na7 Rf8 Qe8 Qe2 d1B Rd4 d2 Nc3 Bd8 Rf6 Rh6 Nb5 Bf7 Rb1 a1B Ra5 Ba2 Be6 Rh8 Rbb4 Rg8 Rd6 Be5 Rbd4 Rf8 Rb6 Rff7 Bg2 Rc8 Rba6 Bb8 Nc7 Re7 Rc6 Rf7 Na6 Rfc7 Kf2 f3 Ke3 f2 Nf3 f1Q Ne5 Qe1 Be4 f4+ Kf3 Qg1 Ng4 Bc2 Rcd6 d1Q R6d5 Qd2 Rh5 Bd1 Bb1 Qc2 Rh6 Nd3 Ke4 Nc5+ Ke5 f3 Kd6 Qd3 Qb2 f2 Rh5 f1Q Bc2 Qd2 Bd3 Qh6 Be4 Qf5 Bc2 Kh8 g7+ Kh7 g8R Qfg6 Rgf8 Kg7 Rf2 Qgf7 Bh7 Qhg6 Rg2 Qg8 Rf6 Qg8f7 Rc4 Qff8+ Kd5 Rb7 Rh6 Rb3 Rd4 Rc7 Kc4 Rc3+ Kb4 Nc6+ Kb5 Na7+ Kb6 Qf1 Rhg1 h1Q Rh5 Qh2 Rh1 Qfg1 Rh6 Nd3 Rhh5 R7c4+ Kb7 Rc7+ Ka8 Nc5 Re2 Qhf2 Rh2 Qh4 Rhg2 h2 Re3 h1R Rh3 Qhf2 Rh6 Qg3 R3h5 Q3h2
R3rnkq/1Q1n1Nbb/6q1/2nB1r2/BqqR1B2/1R1b2B1/n6q/BKB3N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 Kc2 d5 e4 g3 h5 g4 c5 f3 h6 d3+ Kb2 d2 h7 f4 e5 g2 b6 a4 c6 g3 c7 a3+ Kc2 d4 b7 d3+ Kc3 a2 Kb2 f2 b5 f3 b6 Bg7 Be2 f1Q Nc3 f2 Bg4 Nf6 Rh3 Rf8 h8B Bf5 c8R Bh7 e6+ Kg8 e7 Nbd7 Qe1 d1Q e8B d2 b8B Qa4 b7 Qfc4 Beh5 f1B Ne4 Bd3 Bd1 Qab4+ Bb3 Rf7 Bf4 Nf8 b8B N6d7+ Bbe5 Qh4 Bd1 Rf5 Ng5 Rb8 Rc5 Re8 Rd5 Qh6 Qe4 Qh5 N1f3 g1Q Rd4 g2 Qb7 Qh2 Nf7 g1Q Bg3 Qgh1 Ng1 Qh6 Bef4 Qg6 Qc8 Qa8 Qb7 Qb8 Bf3 Qd8 Bd5 Qdc8 Rb1 d1N+ Ka1 Qd8 Ba4 Nc3 Rb3 Qh4 Bf2 Qhh6 Rf3 Q6h4 B2g3 Qhh6 Rf2 Q6h3 Kb2 a1N Rd2 Na2 Rf2 Nc2 Kb1 Ne1+ Rc2 Bf1 Re2 Nd3 Re6 Be2 Ra6 N3c5 Ra8 Bd3+ Ka1 Bh6 Re4 Qhh5 Bhb2 Bg7 Rd4 Q5h4 Bc3 Qhf6 B3b2 Bh6 Bc3 Qh8 B3b2 Be2 Kb1 Bg7 Ba1 Bd3+
rBn2R2/1br3b1/B1B4B/RQqq1n2/n5Kn/RN5B/4q2b/1qNB1n1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 c4 Ke5 g4 f5 e4 h5 b4 d5 c5 a5 b6 d3 b5 d4 c6 h3 b7 d2 b6 h2 g5 h4 g6 d3 c7 a4 g7 h3 Be2 a3 Qa4 d1Q Bd2 a2 Qa6 Qd4 Bc3 d2 Na3 Ne7 g8B Nbc6 b8R Bb7 c8B Qb1 Bf7 d1N Be1 Nb2 Bh5 Qc5 Bg4 Rh7 Bb5 Nd4+ Kf2 f3 Kg3 f2 Bf3 f1Q Bc4 f4+ Kg4 Bg7 Ne2 Ndf5 Nc1 Qe2 Nb5 Nh4 Bd2 Na4 Rg1 h1N Nd4 h2 Ndb3 Ng3 Qb5 Ngf5 Rg3 h1Q Bd3 Qeh2 Bd1 f3 Bh6 f2 Bd7 f1N Rf8 Nc8 Be6 Bd5 b7 Qd2 Rf3 Qhg2+ Rg3 Qge2+ Rf3 Bc6 Bdc4 Qd6 b8B Bb7 Bd3 Bf6 Bdc4 Rc7 Bd7 Qdd5 Bc6 Ke6 e5 Bg5 Bd3 Bf4 Bc4 Bh2 Bd3 Ke7 e6 Kd6 e7 Ke5 Bc4 Ke4 e8B Qbc2 Bed7 Qcd3 Rb1 a1B Rb2 Qb1 Ra2 Bg7 Ra3 Qd2 Rf4+ Ke3 Re4+ Kf2 Re5 Kg2 Be6 N1g3 Bf1+ Kh1 Bh3 Nce7 Bc8 Qe2+ Kg5 Qcc4 B6d7 Nf1 Qb6 Qdc6 Ra5 Q6d5 Qb5 Bc6 Ba6 Qcc5 Be8 Bb7 Bc6 Qea2 Kh5 Nc8 Kg4 Qe2+
1NRQrqkN/2B2n2/1b2n3/b2RN3/2b2K1b/rB1N1bnq/1Rn2N1N/5b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 e4 d5 c5 f3 b6 f2 b5 a4 b7 d3 Ke3 a3 e5 a2 h5 d2 b6 d4+ Kd3 g3 c6 g2 c7 g4 h6 g3 h7 f4 Ke4 f3 Rh2 d3 Qc2 d1Q Ba3 d2 Qd3 Na6 b8N Qb3 b7 d1B Nd7 Nc5+ Kf4 Be7 b8N Ba6 c8R Nh6 Ne2 g1B Nc1 g2 Nc3 Bc4 Ne4 Re8 h8N+ Kg8 e6 Bh4 e7 Nf7 Ne5 Ra6 Rb1 a1N Rb2 Nc2 Qd7 Ra4 Ncd3 Ra8 Bb4 Ra3 Ba5 Be2 Bc7 Ne6+ Kf5 Qc3 Rb5 Bd1 Rd5 Qb3 Be2 f1N Nef2 Ng3+ Kg4 Rf8 e8N Qf6 Ng7 Re8 Nh5 Qe7 Qd8 Qf8 Nh1 Bd4 Nhf2 g1B Bf1 Bb6 Be2 Ne4 Ng3 Ba5 Nf1 Ng3 Rg2 Qc3 Nh2 Qb3 Nh3 Bgb6 Nhf2 Ned4 Kf4 Qc3 Ne4 f2 Bf3 f1B Nef2 Bde2 Bg4 Qb3 Bd7 Bf3 Ba4 Qb5 Bb3 Qd7 Nh1 Qh3 Re2 Nb4 Rb2 Nbc2 Nhf2 Ne6+
qKbBBq1q/1nQqBN1b/1n1r1rB1/5R2/kNqB4/4R1r1/3Rp3/2b1B3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 h5 b4 d5 g4 Kd7 c4 a5 f4 e5 b6 Kc6 f5 e3+ Kd3 h3 g5 a4 b5+ Kc5 b7 Kb4 f6 e2 c5 e1Q c6 a3 g6 h4 f7 a2 b6 h2 c7 h3 g7 Nc6 b8B Ra7 b7 Qeh4 Na3 Nge7 g8B Bh6 f8B Na5 Qc2 Ra6 Ba7 Rf6 b8B Nb7 Bh7 Rg8 Nf3 Rg3 Bg6 Qd6 Qc3+ Ka4 Bd2 Bg5 Rc1 a1Q Be1 Bh6 Rc2 Bc1 Rg1 h1B Rd2 h2 Nc2 Qda3 Nb4 e4+ Ke2 e3 Kd3 Bg2 Ne5 h1Q Nf7 Bgh3 Bg2 e2+ Bf3 Q1a2 Rf1 Qh8 Bb6 Bhe6 B8a7 Qg2 Nd8 Bg8 Nf7 Bh7 Ba5 Nc6 Be7 Nb8 B7b6 Nd7 Ba7 Rg5 Bh5 Nb6 Rf3 Rg3 Re3 Bg4 c8R Qc4+ Kc2 Bd7 Rc5 Bc8 Rb5 Nd7 Bad8 Nb6 Bg4 Qh1 Bd7 Qh6 Be8 d3+ Kb1 d4 Rf5+ Qc6 Qc5 Q6f8 Qd6 Qc3 Ka2 Qc5 Qc7 Qa5 Rc2 d2 Rb2 d1R Rd2 Nd7 Bac5 d3 Bd4 Qcc5 Rd5 Qa8 Rf5 Kb5+ Kb3 Qd5+ Kc3 Ka4 Bd6 Qe4 Kc4 Qh4 Kd5 Qg4 Kc6 Nb6 Rb2 d2 Bf2 Rf1 Be1 d1Q Rd2 Rh1 Rd5 Rh6 Rf5 Be6 B6e7 Qb3 Qe5 Bc8+ Qd6 Qd5+ Kc7+ Qb5 Qc6 Qe4 Qc5 Qc2 Qc6 Qc4 Bh5 Re6 Qc5 Rhf6 Bg6 Rd6 Qc6 Qa6 Kb8 Qa5 Qc5 Qd7 Qc7 Qa8#
1NQn4/3q2R1/K1R3BB/rBr2b2/Rbpqq2R/nq4N1/rR1n4/3k2qR w - - 0 1 illegal: No possible last move
K3r1r1/NQ2Nq1n/B2b1nqR/B6B/2nq1q1R/2p3N1/Bb6/2kbBr1B w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 Ke6 Ke4 c5 a4 f5+ Kf3 Kd5 g4 Kd4 e4 b5 d3 h5 g6 c3 g7 h4 a5 h3 e5 c4 a6 c2 a7 b3 g5 b4 g6 h2 e6 c3 e7 b2 e8B b3 Ra6 Bd6 Ra3 Nd7 Ra6 Nf8 Bd2 c1B Be1 Nf6 g8N N8h7 g7 Bb8 Ne7 Rg8 Na3 b1Q Bh5 b2 Qb3 Qc2 Re6 b1N Qb7 Bb2 Be2 Re8 g8B Bd7 Rb6 Ba4 Ba2 Qb3 Bf1 Qf7 Ra6 Bd1+ Ne2+ Ke5 Rc6 Qd4 Nb5 Na3 Ra6 Nc4 Rb6 Ba4 Ng3 Bd1+ Be2 Ne4 Rh6 Nef6 Rg1 h1R Rg2 Qg6 Rh2 Bd6 Rh4 Rf1+ Bf2 Rad8 a8B Bb8 Na7 Rg8 Qc8 Rde8 Be4 Kd6 Qb7 Kc5 Bc6 Nb6 Be4 Kb4 Bed5 Ka3 Be4 Qd7 d4 Nc4 d5 Qd8 d6 Qb6 d7 Qd4 Kg2 f3+ Kh2 f4 d8B Rh8 Ba5 Rhg8 Be1 f2 Bh1 f3 Kh3 Rg1 Bd3 f1Q+ Kh2 f2 Bde2 Nb6 Ba6 Qfc4 Kh3 Qcf7 Kh2 Rf1 Kg2 Bc2 Kf3 Bd1+ Be2 Qa4 Ke3 Nc4+ Kd4 Qd7+ Kc5 Qdd3 Bb1 Qd4+ Kb5 Kb3 Ba2+ Kc2 Kc6 Kc1 Bd3 Rg1 Bde2 f1Q Bd3 Qff4 Bf1 Ne3 Ba6 Nc4 Qc8 Qdd3 Kb7 Qdd4 Ka8 Rf1 Qb7 Bd6+
1Rq2kr1/B4rnq/p5r1/N1r1r1R1/5b2/2NNN1N1/Rn1Qbrn1/1N2KB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 f5 b4 d5 c4 h5 g4 h3 g5 d3 e5 d2+ Ke2 d4 e6 d3+ Kf2 a6 b6 h2 b7 f3 e7 h4 b5 f4 b6 h3 c5 Nd7 b8R Ngf6 c6 Bh6 b7 Rg8 g6 Nf8 g7 Nh5 c7 Bg4 c8N Ng6 Na3 Nh4 Na7 Qc8 Qe2 d1N+ Ke1 Nb2 Nc6 d2+ Kf2 d1R Ra2 Rd2 Ne5 Rc2 Qd2 Rc5 Ne2 Bg5 Rg1 h1R Ke1 h2 Rg2 Rg1 Nc3 h1Q Nd3 Kf7 Nab1 Re8 g8N Ng7 Qc2 Bh5 Nf6 f2+ Kd2 Qh2 Nfd5 f3+ Ne3 Bf4 Rg5 Rg8 e8N Kf8 Nf6 Bg4 Bg2 f1R Nfe4 f2 Ng3 Be2 Bh3 Re1 Bf1 Ra7 Qd1 Na4 Ba3 Nb2 Bb4 Qh1 Ba5 Qe4 Bb6 Qh7 Qc1 Rg2 Qc2 Ra8 Ba7 Rh2 Bg2 f1R Qc1 Rf3 Bf1 Rhf2 Qc2 Rc1 Qd1 Re5 Ke1 Rc2 Nb5 Rc6 Qd2 Rg6 N5c3 Qe8 Rd8 Rc8 b8N Rcc5 Rc8 Qd8 Nc6 Qe8 Rb8 Qc8 Rg4 Bg5 Na5 Rf7 Nc6 Bh6 Na5 Bf4 Rg5 Ng2+
1NbB1q2/1r5n/5rBB/2pnBr1q/1k1b1rB1/RnRnN2Q/2K1B1N1/n7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Kd6 g4 a5 d4 f5 Kd2 h5 b6 f3 b5 f2 b7 a4 b6 c3+ Kc2 f4 g5 h3 d5 Kc5 e5 f3 g6 a3 g7 a2 e6 h2 d6 h4 e7 h3 e8B Na6 b8B Rh6 b7 Nf6 g8B Ra7 d7 Bg7 Bf4 Nb4+ Kb3 c2 Bgc4 Nbd5 Bfe2 f1R Bg6 c1N+ Kc2 f2 Nd2 Nh7 Bg4 Bd4 Qf3 Qf8 d8B Nb3 Rc1 Kb4 Ne2 c5 Bbe5 Rh5 b8N Rb7 Bcd3 Rf5 Nc4 Rf6 Rg1 h1Q Bh6 h2 Qh3 Qf3 Nf4 h1N Ng2 Qf5 Bb6 Qh5 Nce3 Re1 Rf1 Na1+ Kd2 Re2+ Kd1 Rb2 Nf5 Rb3 Re1 f1R Bd8 Nf2+ Kd2 Rb1 Re3 Rb3 Bb5 Rb1 Ra3 Nb3+ Kc2 Ra1 Bbe2 Nd3 Nfe3 R1f5 Kd1 Rb1 Bef3 Rb2 Rc3 Rf2 Be2 R2f4 Kc2 a1N+
3n1R2/b4B1R/1Rnpbb2/N7/kbr1n2Q/r2B1Rnq/1Kn1N2q/R3B2R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 c4 a5 Kc2 g5 e4 f3 b4 a4 h4 a3 c5 d3+ Kc3 f4 e5 g3 h5 g2 b6 f2 b5 d2 c6 a2 b7 g4 e6 g3 b6 f3 h6 Bb4+ Kb3 d6 h7 Ne7 c7 Nbc6 b8R Qd7 b7 Nd8 Bb5 f1N Qc2 d1N Nc3 f2 Bd3 Nfe3 Qb2 f1N Nd5 Nf2 Qd4 Ra3+ Kb2 Ne4 Nb6 Nec6 e7 Qh3 Bd2 Be6 c8R Nc2 Ne2 g1B Nc4 Kd7 Be1 g2 Na5 Nfg3 Ra8 Rg8 b8R Rg4 h8R Bf2 Qc4 g1Q Rh7 Ba7 Rb6 Qgh2 Rab8 Rg5 Qd4 Rc5 Qf6 Rc4 Qh4 Nf7 Rf8 Nfd8 Rb5 Kc7 Rbf5 Kd7 Rf3 Kc7 Nb7 Kb6 e8B Kb5 Na5+ Ka4 Rb6 Nh5 Rb1 Nhg3 Bf7 a1B+ Kc1 Bg7 Ra1 Bf6 Kb1 Rc3 Kb2 Rc4+
Nn1NR3/1r6/3bN2R/Q3NKNn/BB2r1B1/N3qbq1/1n1q1np1/q1k3r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 a5 c4 d5+ Ke5 f5 e4 a4 c5 a3 c6 d3 c7 a2 h3 d2 b6 d4 b5 g3 b7 f3 b6 f2 Ba3 f4 Bb5 f1R Qa4 d1N Ne2 d3 Nd4 f3 Qa5 f2 Bb4 g2 Na3 g1Q Ba4 Bg4 c8B Bf3 Bg4 Nb2 Re1 a1Q Re3 d2 h4+ Kg6 h5+ Kg5 h6 d1N h7 Ra7 Ke6+ Kf4 e5 g5 Rh6 Nf6 Re1 Rg8 h8N Nh5 Nf7 Qg3 Re2 Rg1 Re3 Nc6 b8N f1Q b7 Qd3 Nd7 Bd6 b8N Rb7 Re2 Nf2 Re1 Na7 Nbc6 Qe3 Re2 Ke4 Re1 Kd3 Kf5 Re8 e6 Qe2 e7 Qe3 Nf6 Qd7+ Ne6 Qd8 Nh7 Qd7 Ncd8 Nc6 Rc1 Nb8 Ne5+ Ke2 Rc2+ Kd1 Rd2+ Kc1 Re2 Rg8 e8N Rg7 Nc7 Re7 Bh3 g4 Ng5 Qh4 Rh8 g3 Bg4 g2 Na8 Qg3 Rh6 Qc7 Nb1 Qcc3 Na3 Qcd2 Nef7 Rec7 Nd4 Qec3 Re8 Qce3 N4e6 Rc4 Ne5 Re4
q6b/b4BRb/RB5N/5p1q/1q2rnBB/K1NkN1r1/BQ4nr/2q3bB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 a4 Ke6 e4 d5 h4 b5 c4 g5 Kc2 b3+ Kb2 b4 h5 d3 h6 g3 a5 d4 h7 g4 a6 g2 c5 g3 c6 d2 c7 d3 a7 Nd7 Rh6+ Ngf6 Nf3 g1B Rh1 g2 Ra3 Nh5 Qc2 d1Q Be3 d2 Nc3 Nc5 Nh2 Nf4 Ng4 Bg7 Nh6 Qh5 Bc4+ Qd5 Rh4 d1R Rg4 Rd3 Qb1 Bd7 c8B f6 Bf2 Rg3 Bd4 Rb8 a8B Rb6 Ra6 Ncd3+ Ka1 b2+ Ka2 b3+ Ka3 Rc6 Bb6 Ne1 Qa2 b1Q Qb2 Re8 h8B Qc1 Rg5 Be3 Rg6 g1B Bab7 Ke7 e6 Kd6 e7 Ke5 Ba8 Bh3 Bg4 Neg2 Bb7 Re6 Bc6 Rg8 e8B Qd8 Bf7 Qa8 B6d5 Rc8 Bb7 Rc5 Bcd5 Kd4 e5 Kd3 Rg5 Re7 e6 Rc4 Bbc6 Re4 Bb7 Re8 e7 Rg8 e8N Bef2 Bgc8 Bf5 Nc7 Bh7 Bg4 f5 Rg6 Bgd4 Bf6 Rh8 Rg7 Be5 Bh4 Bf6 Ba5 Ba7 Bb6 Qg5 Ng8 Ne3 Rg6 Rb4 Bh1 Re4 N7d5 Neg2 Ne3 Qh6 Bbd5 Bd4 Rg5 Bg6 Bde6 Rh7 Bd5 Bh8 Bde6 Qd2 Qa1 b2 Bb3 b1Q Ba2 Qb5 Qb2 Qc2 Ne7 Qc1 Ng8 Bh5 Rg7 Bg6 Bf6 Qg5 Be8 Rh2 Nh6 Qh5 Bef7 Bh7 Bh4 Qb4#
rNb2b1B/1pN1NK2/1r2B1qR/3rq1rb/2n4N/Q4N2/1n1nk3/R2N1n1R w - - 0 1 illegal: No possible last move, all moves rejected
8/R1NRB3/n1k2b1n/2r3nN/r1q3RR/1bnQK1bB/1RBbp1bb/2R5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 d5 c4 Kd7 f4 g5 b4 e5 b6 d3+ Ke3 d2 b5 a4 f5 g3 f6 d4+ Ke2 a3 c5 g2 h5 a2 f7 e3 h6 e4 h7 g4 b7 g3 b6 Na6 b8R Qc7 b7 Kc6 Na3 Bh3 Rd8 Bd6 f8R Nh6 Qc2 d1N b8R Qc8 Rf4 d3+ Ke1 e2 Kd2 Nc3 Ke3 e1B Rg4 d2 Rd7 d1B Nb5 Ra7 Ne2 g1N Qd3 g2 Nc7 Bdg3 Ba3 Nf3 Rb2 Bb3 Nf4 Ng5 Nh5 Rg8 Rc1 a1B h8R Rg6 Rf8 g1B+ Rff2 B1h2 Rff7 Ra8 Be2 Re6 Bd1 Re5 Bc2 Bg2 Rfe7 Qg8 Rh7 Qc4 Rhe7 Kb7 c6+ Kb6 Bd6 Rc5 Rg7 Ra7 Be7 Ra8 Nb5 Ra7 c7 Kc6 c8B Qf7 Kd4 e3 Nc7 e2 Ke3 Qc4 Rf7 Rb7 Rg7 Rb4 Rh7 Ra4 Rf7 Be5 Rh7 Bhg3 Rhh4 Bh2 Rf7 B5g3 Rf5 Nhf7 Rdd5 Nh6 Rgd4 Nb4 Rbb1 Rca5 Rfe5 Rb5 Bh3 Nca2 Rdg4 Bac3 Rf5 Bf6 Rb2 Nc3 Rd8 Rd5 Ra8 Na6 Ra7 Rb5 Rd5 Rc5 Rd7 Bd2+
N7/2p1rRr1/NN4N1/r5R1/1B2nr1r/1bbn1Bq1/1bRbKQ2/krN4N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Ke7 g4 Kd6 e4 f5 b4 a5 e5+ Kd5 e6 h5 e7 a4 e8R f3 b6 f4 b5 a3 g5 c3 g6 a2 b7 f2+ Ke2 Kc4 Nh3 c2 b6 Kb3 d5 Qg5 g7 Bb4 d6 Na6 b8N Bd2 d7 Nc5 d8N Nf6 g8N Rh7 b7 Ra5 Rg1 Nfe4 Ne7 Rg7 Ba3 Be6 Nd5 Nd3 Qe1 c1B Re7 Bb2 Nd7 Bf7 b8N Qe5 Ng5 h3 Ndc6 h2 Nh3 h4 Bb4 Bg8 Bg2 Qd6 Ng5 h3 Nbc3 Qg6 Rc1 Be6 Re8 Re7 Rg8 f1R Na6 h1R Rc2 h2 Nce5 Rf3 Rg7 Rg3 Rf7 f3+ Kd1 f2 Nh3 f1R Ke2 Rf5 Nf2 Rf4 Bf3 Qg4 Qf1 Qh4 Rg2 Rg7 Rg5 Qg3 Ng6 Rg1 Qe1 h1R Qf1 Rh6 Nh1 Rhh4 Qg2 Rb1 Qf2 a1B Na2 Bbc3 Nc1+ Ka4 N5f6 Bb3 Nd5 Bab2 N7b6+ Kb5 Na8 Ka4 Bc5 Re5 Bd4 Ka3 Ndb6 Re7 Bc5+ Nb4 Nd3 Ka2 Nc1+ Ka1 Bd6 Nd3 Bc5 Ba4 Bb4 Bb3
rn1qr1bB/N7/Q1NBn3/bpn1r3/2k2B1B/r1bn3b/2RB1N2/KR3B2 w - - 0 1 illegal: No possible last move
4bQ2/BB1Nb2k/q4R1p/4Brrr/N1p3Bn/2B1q1R1/2nq3b/n1K1R1B1 w - - 0 1 illegal: No possible last move, all moves rejected
1n1nBRBK/B1k1p3/1bNNq2r/1R1Q2bb/RBB5/4r2q/pq2B2r/n7 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 a5 b4 d5 g4 Kd7 f4 h5 c4 d3 Ke3 h4 c5 a3 c6+ Kd6 b5 d2 f5 d4+ Kf4 a4 g6 a2 Kg5 h3 b6 d3 c7 a3 g7 h2 Kg6 e3 g5 e2 f6 e1B f7 Rh5 b7 Nh6 Kh7 Bg4 c8B Ra6 g8B Qb6 g6 Bf2 g7 Kc7 Kh8 Qb2 Nc3 Rf6 Nf3 Bb6 Ne4 Rh3 Rg1 h1Q Be2 Bh5 Nd4 Re3 Nc6 Qh3 Rg5 Qe6 Qh1 d1Q Bd7 d2 Nd6 Qdb3 Rb5 d1R Be8 Rd2 Qd5 Rc2 Bd2 Qd3 Rc1 a1N Bb4 a2 Rd1 Qdf5 Rd3 Qf3 Ra3 Qfh3 Ra4 Rd2 Bh7 Rc2 g8B Rd2 Bc4 Rh2 Bhd3 Bg7+ Kh7 Bh8 f8R Nf7 Be2 Bg7 Ba3 Bh6 Bb4 Nd8 Kh8 Nd7 Nf5 Bg5 b8B+ Kc8 Ba7 Nb8 Nd6+ Kc7 Qg2 Qee5 Qh1 Qee6 Qd5 Rh6#
r1BN3K/1p2b3/B2B1kbB/p4Bn1/RBQ2Rn1/6n1/n1qrb3/r1NnN3 w - - 0 1 illegal: No proof kernel
2b5/2K5/B1nB1NQ1/1BnBRr1R/1bb1Np1B/B4kq1/3rpb1n/1R3b1q w - - 0 1 illegal: No proof kernel
2b4n/2q3r1/krNB2Bp/1R1B2q1/1RQr1b2/rp1n1N2/r4B2/NBqB1K2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Kd7 e4 b5 g4 f5 d4 c5 d6 Kc6 a5 Kb7 g5 h6 g6 b3 g7 h3 d5 b2 e5 h2 d7 c4 d6 c3 e6 b4 e7 f3 e8B f4 Bg6 f2+ Ke2 c2 Nf3 Rh7 Nbd2 b1R Ra4 Ne7 g8B Qc7 d8N+ Ka6 d7 Rg7 Ba2 Nbc6 Ba3 c1Q Nb3 Ne5 Qd5 Nd3 Na1 b3 Bh3 f1R Nc6 Rd1 d8B Ra7 Rg1 h1Q Bg4 Qh4 Bd6 Qg5 Rb4 Rb7 Re1 Rb6 Kf1 Rb2 Bb1 Ra2 Rb5 Rdd2 Qc4 Ra3 Rd1 Rda2 Re1 Qb2 Re4 Qc1+ Ne1 f3 Rd4 f2 Bd1 Nd5 Nf3 N5f4 Bf6 Be7 Re4 Bd8 Bd4 Bf6 B4c5 Be5 Be3 Ne6 Rh4 Nd8 Rg4 Nf7 Rf4 Nh8 Bd4 Kb7 a6+ Ka8 a7 Kb7 a8B+ Ka6 Rg4 Bg3 Nce5 Bf4 Bd5 Rh7 Nc6 Rg7 Kg2 f1R+ Bf2 Bg3 Rd4 Rh1 Rg4 Rh4 Kf1 Bf4 Qc2 Be5 Rgb4 Rd4 Qc4 Bf4
3nr3/b1q2Q2/1Br3b1/r1N3NB/B2q2p1/B4bpB/n1RrR1N1/1B1nK1k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 c4 Ke7 h4 Ke6 e4 d5 a4 g5 a5 f5 c5 b5 a6 b3 a7 b4 h5 f4 c6 f3 h6 g3 c7 d3 h7 f2+ Kd2 b2 Ra5 b3 Rc5 g4 Na3 b1B Qf3 d4 Rh5 b2 Rh2 Ne7 Nh3 Na6 Rc2 Nb4 Nc4 Bb7 c8N Qc7 Ne3 Na2 Nd6 Nc6 Ng2 Nd8 Kd1 Rc8 a8B d2 Qb3+ Bd5 Nb7 Bc5 Qf3 Rf8 h8B Ba7 Bf6 Re8 Ng5+ Kd7 Ke2 d1R Be3 Bc6 Be7 Bd5 Bc5 Kc6 e6 Kb5 e7 Bc6 Rd2 Kc4 e5 Bg6 e6 b1Q Ba3 Qbb6 Nc5 Ra1 Rb2 d3+ Kd2 Bd5 Qf7 Bf3 Be4 Qbd6 Bf5 Qd4 Rc2+ Kd5 Nf4+ Ke5 Bh3 f1R Re2 Rf2 Ng2 Kd5 Rc1 Ke5 Kd1 d2 Bb1 Qb8 Rc2 Rc6 Bf4+ Kd5 Bc7 Qc8 Bb6 Qc7 Bb2 Nb4 Bc1 Ra5 Bb2 Na2 Ba3 Rf8 e8B Rh8 Bd7 Re8 Ne3+ Ke5 e7 Rh2 Qb3 Kf4 Qf7+ Rf6 Ba4 Rg2 Qb3 Rc6 Qf7+ Bf5 Qd5 Rg8 e8B Bh7 Bh5 Re8 Qc4 Bg6 Qd5 Bfe4 Re1 Rh2 Nge6+ Kf3 Ng5+ Kf2 Qf7+ Bef5 Re2+ Kg1 Rf2 Be4 Ke2 d1N Ke1 Rg2 Rfd2 Rf2 Ng2 Bd5+ Re2 Bf3 Re7 Rd2 Re5 Qb2 Re2 Qd4
b1KNr1k1/b4Nb1/1R6/BR4Np/3BqB1q/B1B2rp1/4Q1bq/nBr3n1 w - - 0 1 illegal: No proof kernel
3Nqnr1/2b1N1R1/2r1Nn1r/p2Q4/R1Rnp3/1BB1K3/q1b1q1N1/1k2rN1N w - - 0 1 illegal: No possible last move, all moves rejected
1qNK1qn1/2n3r1/pB2R3/2Q1Bb1n/1BNR2r1/RBb2k1q/Brq1p3/6B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 c4+ Kc5 b4+ Kd6 b6 e5 c5+ Kd5 c6 h5 b5 h3 f5 e3+ Kd3 d6 b7 e2 f6 e1Q c7 h4 f7 a6 g5 h2 b6 h3 g6 Bg7 f8B Nd7 b8B Qf2 b7 Nb6 Nf3 Rh4 Nfd2 Rg4 Qc2 Bf5+ Ne4 Ra7 c8R Na8 Nd2 Nc7 Ra3 Qe8 Rg1 h1N Rd8 h2 Nc4 Ng3 Be3 h1Q Be7 Bh8 g7 Qh3 Be2 Qf8 Bd1 Qfh2 Re1 Nh5 Qf2 Q2g3 Bb3 Qgh2 Qg3 Qb2 Bg1 Qbh2 Qe3 Qf4 Kc2 d3+ Kc3 d2 Kb4 d1R Ka5 Rd2 Kb6 Rb2 Qf2 Qfh2 Re3 Kd4 Re1+ Kd3 Qc5 d5 Ned6 d4 Nc8 e4 Rd7 e3 Bd8 Ne8 Be5 Ke4 b8B d3 Rd4+ Kf3 Bbd6 d2 Kc6 d1Q Bb6 Qdc2 Ba2 Nh6 g8B Nc7 Be6 Ng8 Kd7 Ne8+ Kd8 Rag7 Bd7 Qf4 Ba4 Qfg3 B4b3 e2 Red1 Qf4 Be7 Qfh2 Rd6 Qf4 R1d4 Qfh2 Re6 Q2g3 B5f6 Qb8 Be5 Nc7+ Kd7 Qb1 Re4 Nf4 Qb5 R7g5 B5d6 Bc3 Be5 Kg2 Rd4 Nh5 Bb4 Qc2 Qa5 Kf3 Qc5 Ne8 Kd8 Rg7 Re7 Nc7+ Re8 Qf7 Re6 Qf8+
Rrbq1q2/3b1Qpn/B1KR1R2/qR1NR1R1/2p2b2/1r4BB/1Nk5/2q1bn2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 h4 Ke6 d4 Kd5 e4+ Kd6 b4 f5 e5+ Kd5 e6 Ke4 b6 c5 d5 a5 d6 a4 e7 f3 e8B c3 d7 c2 h5 c4 h6 a3 h7 a2 b5 f4 b7 Nc6 b8R Na5 b6 Qc7 d8R Nf6 b7 Bb4 Bh3 Rf8 h8R Nh7 Bb5 Nb3 Qf1 Nd2 Rd6 Ra3 Ne2 Rb3 Ba6 Qd8 Ra8 Bd7 Rf6 Kd3 b8R Bc3 Bb2 c1Q Rb5 Kc2 Rg1 Bb4 Nec3 Rg8 Nd1 g3+ Ke1 g2 Be5 f2+ Ke2 Ba5 Nbc3 f3+ Ke3 Bc8 Rb1 a1Q Bh2 Bc7 Rd5 Qa5 Kd4 Bf4 Rdd6 Rf8 Nd5 Rg8 Qe2 f1Q Qe8 f2 Bg3 Bd7 Qf7 Re8 Rh1 g1B Nb2 Bh2 Rg1 Bc8 Bh4 Bhg3 Rf8 Qfd1 Rf5 f1B Re5 Be1 Rgg5 Qf3 Bg3 Bd3 Bf1 Bdf5 Bh3 Qac3+ Kc5 Qca5+ Kc6 Nf1 Ra1 Bg4 Ra4 Bgf5 Rb4 Bfe6 Rb5 Bg4 Qg8 Bgf5 Rff6 Bfd7+ Kc5 Rf8 Qf7 Qdc7+ Rc6 Bb7 Rfg6 Bfd2 Qg8 Rb8 Qe8 Qf7 Rf6 Qd8 Rcd6 Qf8 Qe7 Bbc8 Qf7 Be6 Kc6 Bf4 Qc7 Bg4 Qf7 Bgd7+
1k3b2/pp2B3/q2R2b1/1r2n1np/1b1nNNQ1/N5R1/1NBN1B2/q1r1Nr1K w - - 0 1 illegal: No possible last move, all moves rejected
bQ1Bk1q1/n4nb1/B1p1rn2/N2R2b1/Rn1B3p/R2B3p/B5N1/r3B1Kn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 g4 h5 e4 a5 b4 h3 d4 h4 g5 c3 e5 a4 g6 f3 e6 f4 g7 a3 b6 a2 d5 c2 b7 c6 e7 Ra4 b5 Ra7 b6 Ra4 d6 Bd7 Ba6 Bc8 Ne2 Nd7 b8B Bb7 Kg1 Ngf6 g8B Ba8 b7 Bg7 Be3 c1B Nd2 Ne5 Nb3 Nf7 Bd4 Rh6 Na5 Qc8 Qb3 f2+ Kh2 f1N+ Kg1 f3 Nf4 Nh2 Ng2 Rg6 Bba7 Bg5 b8R Qd8 Rb4 Qc8 Rd1 a1N Rd2 Ra3 Ra4 Nc2 Qb8 Nb4 Rd3 Ra2 Rda3 Qd8 Bf2 Ra1+ Be1 Rh6 Bd4 Qc8 Kf2 Qd8 Rf1 Rg6 Kg1 f2+ Kh1 Nf3 Bh7 Rh6 Bhd3 N3e5 Kh2 Ng6 Rh1 f1N+ Kg1 Ng3 Rh2 Qc8 Rh1 Kd7 e8B+ Kd8 Rh2 Nh1 d7 Ke7 d8B+ Kf8 B4b6 Ne7 Bd4 Qe6 Bd7 Nc8 Be8 Qc4 Bd7 Na7 Be6 Ke8 Bd5 Qc3 Ba2 Qd2 Nf4 Qd1 Rd2 Qh5 Ng2 Qg6 Rf2 Qh7 Rf5 Qg8 Rb5 Nh5 Re5+ Re6 Rd5 Nf6
q5rR/b2n3p/1NpNN3/8/2B3k1/qBBbRN1b/p1Nb1brQ/3K2nN w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Kf6 d4 a5 b4 e5 d5 c6 g5+ Kf5 b6 c3 b7 h3 b5 e3 d6 a4 g6 c2 b6 h2 d7 e2 g7 a3 Nc3 e4 Nf3 Qe7 d8N Ra7 Bb2 c1B Qc2 Qd7 Nf7 Bc5 Nd6+ Kg4 f5 B5e3 f6 Qe8 f7 Nf6 f8N Nfd7 g8B Ne5 Nd1 Nbd7 Bb3 Rg8 b8N a2 b7 Ra3 Bc3 Ba7 Na6 Bce3 b8N Bf2+ Kd2 e1Q+ Kc1 e3 Bfc4 e2 Rb1 Qg1 Ne6 e1B Nb4 Qg3 Qb2 Ra5 Nc2 Qf8 Rg1 h1B Rg2 Rd5 Rh2 Rd2 Rh3 Nc5 Nd7 Ba6 Ne8 Bg2 Nd6 Qa8 Nb6 Bb5 Nfd4 Qd3 Re3 Bh3 Nf3 Ncd7 Ra1 Bg1 Rb1 Rg2 Nf2+ Kg3 Ba5 Bd2+ Kd1 Ba6 Nh1+ Kg4 Bc3 Bf2 Ng3 Ng6 Nh1 Nf4 Qa3 Bb5 Qa5 Ba6 Qe5 Ne2 Qh2 Ng1 Ba4 Nf6 Rb4 Nd7 Bab3 Qf5 Ra4 Qc5 Ra5 Qa3 Rf5 Rd8 Rf8 Re8 Rh8 Rg8 Bd5 Bf1 Bdc4 Bd3
2bNk1r1/rRQ1q1r1/2N2pp1/3B1Bpr/2q2B1b/B3N3/nqRK2B1/nB6 w - - 0 1 legal: proof: f4 a5 g4 e5 fxe5 c5 d4 cxd4 b4 axb4 g5 h6 Bf4 hxg5 Bd2 Rh5 Bc1 Rh8 e4 d5 h4 b5 c4 b3 a4 b2 e6 d3 e5 b4 c5 d4 a5 b3 e7 Be6 h5 Na6 h6 Nb8 a6 Kd7 e8N Ne7 h7 Bf5 a7 Qc7 Nd2 b1R Ra2 b2 Qc2 Ra1 Ngf3 b1Q Bg2 Na6 Nc4 Nc6 Ned6 Nab4 Ne3 Na5 Nb7 Ke8 c6 Nb3 e6 Bd6 e7 Bc8 Ne5 Qb2 Nd8 d2+ Ke2 Rg8 h8B d1R Rh7 Rh1 Bd5 Qd7 c7 Rh5 Nec6 d3+ Ke1 Rb8 a8B d2+ Ke2 Rb7 Qc3 Qb1 Rc2 Raa7 Ba3 Na2 Bg2 Qb2 Kd3 Qe6 Qc4 Bd7 c8B Na1 Qf4 Bc5 Qc7 g6 Be5 f6 Bf4 Qeb3+ Ke2 Bh3 Bf5 Qc4+ Kd1 Rg7 Bd3 Rb8 Bb7 Bd4 Bc8 Bb6 Bcf5 Rc8 Ke2 d1Q+ Kf2 Ba5 Nf7 Qbb5 Rc3 Qbc5 Bg4 Rb8 Bb1 Q5b4 Qd6 Qc2+ Ke1 Qcb2 B4f3 Rd8 Bd5 Bc8 Kd1 Qbc5 Rc2 Be1 Qb8 Bh4 Kd2 Kd7 Qb6 Re8 Nfd8 Rf8 Qb8 Rfg8 Qe5 Qd6 e8B+ Kc7 Bf7 Kd7 Be6+ Ke8 Bf5+ Rge7 Rg7 Re6 Rd7 Re7 Rb7 Qc7 Qd6 Reg7 Qe5+ Qe7 Qb8 Qd6 Qc7 Qe7
1Br3b1/2pB1qNR/r3B2B/k1B1bp1N/1RpqB3/2r1n3/1nq1Q2K/3q2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 a5 Kg2 f5 b4 h5 d4 a4 e4 a3 e5 h3+ Kh2 f3 b6 Kc6 d5+ Kb5 d6 a2 e6 f2 d7 h4 g5 Qe7 d8B Qe8 e7 Qf7 e8B+ Bd7 g6 Be7 b7 Ra6 g7 Nf6 g8B Nc6 b8B Ne5 Nd2 Nd5 Ne4 Bf6 Be7 Ne3 Bd3 f1R Ng5 Rf3 Be4 Nd3 Bc5 Nb2 Ne6 Rg3 Rb1 a1Q Ne2 Qa4 Qe1 Qc2 Ng7 Ka4 b5 Be6 Qf1 Ka5 b6 Bd5 Bd7 Be6 Bh7 Rc8 b7 Bd5 Bg8 Be6 Rg1 Bd5 Kh1 h2 Nf4 Qe6 Bb5 Ng4 Bd7 Rf3 Rg3 Re3 Qe2 Rc3 Bba7 Qe5 b8R Qd4 Rf3 Be6 Kg2 h3+ Kg3 h1Q Rb4 Qf1 Bb8 h2 Be3 Qfc1 Kh3 Q1d2 Rg1 Qdd1 Kg2 Bf7 Rh3 Bd5 Rh7 Be6 Bd5 h1Q+ Kg3 Qh6 Be4 Qg6 Nfh5 Qe8 Kg2 Qf8 Bh6 Ne3+ Kh2 Qe8 Bf7 Qe7 Bg6 Bg8 Bf7 Qf8 Bfd5 Qf7 B5e6 Be5+
b3B3/R3BNq1/1n1bB3/2rnBb1r/Q1pRB3/1p4Bk/2p1b3/KN1b1Rb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 d4 h5 Kd2 c5 Kc2 e5 Kb2 b5 f4 c3+ Kc2 h3 a4 h2 g5 c4 f6 Ke6 f7 Kf5 g6 h4 a5 h3 d5 e4 g7 e3 a6 e2 d6 Kg4 f5 Qf6 a7 Ne7 g8B Nd5 d7 Rh5 d8R Nd7 Bb2 Bd6 f8B Qg7 f6 N7b6 Bg2 Bf5+ Be4 Rc8 a8B Rc5 Nf3 e1B f7 Bf2 Bc6 Bg1 Ra7 b3+ Kc1 b4 Ne5+ Kg3 Be7 Bg4 f8B Be2 Nf7 Kg4 Ba1 b2+ Kc2 Kg3 Be8 Kg4 Nd2 b1B+ Kc1 Bd3 Qa4 b3 Nb1 c2 Be5 Bd1 Kb2 B3e2 Na3 Bf2 Re1 h1B Ka1 h2 Nb1 Kh3 Rf1 Bg1 Bh4 Bg2 Bfe7 h1B Bg3 Bgf3 Nh6 Bg4 Be6 Bf5 Nf7 Nf6 Bd3 Ba8 Be4 Bb8 Rd2 Nfd5 Rd4 Bd6
1BqN2NR/p6n/1Kp4p/3rpQb1/1R2r3/r1bNk1n1/2rR4/Rb1R1BR1 w - - 0 1 illegal: Other
1R2n1qn/2qBrp2/2KQ4/k3r3/1RB4b/r2p1rBp/bp2R1R1/RN1R1N2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 h5 Kd3 b5 Ke4 b3 Kd5 b4 e4 h4 g4 d3 a4 d2 c4 h3 c5 b2 c6 f3 e5 b3 a5 f2 a6 Rh5 g6 Qc7 g5 Kd8 e6 Be7 a7 Na6 Bc4 f1R g7 Rf3 Ne2 Bf6 Ng3 Ne7+ Ke4 d6 g6 Bh4 Nf1 d5+ Kd4 Re5 Rg1 Qa5 g8R+ Kc7 g7 Kb6 c7 Ng6 e7 Be6 e8R Nh8 c8B Nc7 Re7 Ne8 Bd7 Rb8 a8R Rb7 Rb8 Qa7 Qe1 d1Q+ Qd2 Qa8 Qd3 Qc2 Bf4 Qc1 Bg3 Qf4+ Kc3 d4+ Kb4 Qc1 Qg6 d3 Rf8 Qf4 g8R Qc1 Qh6 Qf4 Rg4 Qc1 Rfg8 Qf4 Nc3 b1R R8g5 Rb2 Nb1 Ra2 Rg2 b2 Rd2 Rc5 Rd1 Qc7 Qf8 Bd5 Re2 Ra3 Rge4 Be6 Rgg4 Rca5 Rg2 Re5 Ree2 Bd5 Qd6+ Bc6 Ba2 Ka6+ Kc4 Ka5 Kd4 Bd5 Bc4 Qd8 Kc5 Ra7 Ba4 Rae7 Bd7 Be6+ Bd5 Qa7+ Kc6 Qg1 Bc4 Qa7 Ba6 Ba2 Rgb4 Qg1 Bc4 Qh2 Bf2 Qg3 Be1 Qg8 Bg3 Qc7+
n2b4/1NQ5/1N2Nr2/2N1R1b1/B1p2N1B/Bn1RNp1r/qK1pppb1/4k1r1 w - - 0 1 illegal: No possible last move
R1B4b/1Q3bRR/p6N/4pprn/p1rr1k2/2R5/1q3Kpq/BNR1Rn1N w - - 0 1 illegal: No proof kernel
bnR2Q2/b4R2/Npr5/B1B3K1/N1rRnr2/1N2k2N/3Rb3/Rr1qn3 w - - 0 1 legal: proof: b4 d5 g4 f5 c4 h5 cxd5 a5 gxh5 axb4 e4 Rxa2 exf5 b3 Bc4 Ra8 Bb5+ Kf7 Be8+ Kxe8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 d4+ Kc4 h4 c5 d6 b6 d7 b2 d5 e6 d6 g6 h6 Ne7 h5 e5+ Kg5 e4 f4 e3 h7 e2 h6 e1N f6 Nec6 f5 Ra4 Bd2 Kd3 Rh4 c4 Nc3 b1B Qf3+ Kc2 Nh3 Na5 Rd4 Nb3 Qa8 Rg8 h8B Nc5 h7 Ba6 Qf3 Rb4 Na4 c3 Bg7 Bb7 h8R Rc4 Qf2 Be7 Bf8 Ba8 Rh7 Kd1 Rf7 c2 Ba5+ Kc1 Rd2 Rh8 Rd4 Rh4 Rd2 Rhf4 Rd4 Qe8 d8R Qd7 Rc8 Qd8 d7 Bd6 Qe2 Bc7 Qe8 Be5 Be7 Bd6 Qf8 Ne4+ Kh6 Bc7 Bc5 g5 Kh5 g4 Rd2 Nd6 Kg5 g3 Rd4 g2 Rd2 Qe7 d8R Qe2 Rd4 Qd1 Rd2 Nb5 R8d4 Be5 Rg7 Nc3 f7 Bd6 f6 Bc7 Qe7 Bd6 f8N Be5 f7 g1R+ Kh6 Bc7 Ne6 Ne4 f8N Be5 Nc7 Rg6+ Kh7 Rc6 Nd7 Rf7 Rf2 Rf4 Qf8 Na6 Be7 Bd6 Kg6 Be5+ Ne6 Bb8 Ndc5 Ba7 Rf7 Nb8 Na6 Qd2 Ba3+ Kd1 Bc5 c1R Rd6 Bd3 Nd4 Rb1 Nb3 Qc1 Rb2 Qd2 Kh5 Ke2 Rd4 Ke3 Rba2 Qd1+ Re2+ Kf3 Rc2 Be2 Rcd2 Nf6+ Kh6 Ke3 Kg5 Ne4+
2R1RQbk/Q1p2B1b/4qp2/N1p1n1K1/4B1pr/1Nn2q1B/q3B3/B4B2 w - - 0 1 illegal: No possible last move, all moves rejected
QRR3R1/3bBR2/qrn1n2Q/1Rnb4/2kN2R1/2N3b1/b1bBq3/2q3rK w - - 0 1 illegal: No possible last move, all moves rejected
1q1RnB2/q1R2B2/r3BqB1/b2rRb2/3k1KN1/5Bq1/R3Qqr1/1N2rr2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 Kd2 Ke7 b4 Kd6 e4 Ke5 c4 f5 g6 a5 g7 d5 b6 h5 c5 d3 Ke3 f4+ Kd2 f3 Ke3 f2 c6 d2 b7 g2 b8R a4 b5 d4+ Ke2 g3 Kf3 h4 c7 d3 b6 a3 b7 a2 Qc2 d1R Qa4 h3 Qc2 h2 Bh6 d2 Be2 Re1 Nh3 f1Q+ Nf2 Nf6 g8B g1Q Bf7 Kd4 e5 d1R e6 g2 e7 Bf5 e8B Bb4 c8B Rg8 Kf4 Ra6 Bf3 Ba5 Ng4 Qgf2 Qe2 g1Q Bf8 Qgg2 Rg1 h1R Bce6 Qb6 Rc8 Qd6+ Ne5 Qb8 Rc7 Rg7 Ng4 Rg5 Bb5 Ne8 Bd3 Qh3 Rg2 Rg1 Rh2 Rg2 Rh1 Q1g1 Bc2 Qh6 Rh5 Qf6 Bd3 Rf1 Be4 Rde1 Bd3 Qa7 b8R Qd8 Ra8 Qdb8 Bc2 Be4 Bd3 Rd5 Re5 Bf5 Nh6 Bh3 Bdg6 Bf5 Ng4 Nf6 Nd2 Ne8 Rd1 a1Q Nb1+ Bd3 Rd2 Qc3 Rb2 Bf5 Ra2 Qc6 Bd7 Qf6 Bde6 Qbb7 Rd8 Qbb8 Rac2 Q2h4 Rb2 Qgf2 Ra2 Qhg3#
2n1b1R1/Qn1N1b2/1b5N/RBBr4/q1bbBkq1/1RB1R3/R7/2n2Knq w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 b4 Ke7 c4 Kd6 e4 Ke5 c5 f5 g6 d5 b6 h5 g7 d3 b7 h4 b5 g2 c6 g3 c7 h3 b6 f4 Nc3 h2 Nh3 g1N Qg4 f3 Nb1 f2+ Kd2 g2 Na3 a4 Ng5 d4 Nh3 Ne2 Qd7 g1N Ng5 Kf4 e5 Ne7 g8R Nbc6 b8R Rh5 e6 Na5 b7 Qe8 Nc4 a3 Nf7 a2 Ba3 Rd5 Nb6 Nc1 Nh6 Qg6 Bc5 Qg4 Bg2 f1B Ke1 d2+ Kf2 d1Q Be4 d3 Qa4 d2 Nd7 Nac6 Qa7 Nd8 Ra8 Bg7 b8B Nb7 Rb1 a1B Rb3 Bad4+ Re3 Ng6 e7 Qa4 e8B d1B Ke1 Bc4 Rb3 Nge2 Kf1 Ne7 Rg1 Be3 Rg3 Bgd4 Rh3 Bg1 Rhe3 h1Q Rg5 Bc2 Re5 Bb1 Rh5 Ba2 Rg5 Nd6 Re5 B8a6 c8R Nb7 Bc7 Bab5 Ba5 Bc6 Rcb8 Nc8 Bc3 Rd6 Rg5 Bf7 Rg8 Rd5 Ra3 Bc4 Ra2 Na5 Rb3 Nb7 Qa5 Qhh5 Qb6 Bf2 Ra5 Ng1+ Bd3 Qh1 Qa7 Be6 Bg6 Bf7 Be4 B6b5 Nf6 Bbe8 Nd7 Bh4 Be2 Bd8 B2d3 Bb6 Be2 Ba6 Bb5 Nd3 Bc6 Bc4 Bb5 Nc1+
n4rnB/3r3B/QNBN1rBQ/6Kp/B3r1bR/1n5q/1b2nR1B/1r2k3 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 a4 c5 d4 cxd4 f4 b5 axb5 axb4 Rh3 exf4 Rh2 Qa5 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 e4 d3 c4 Kd4 g6 f6 b6 h6 e5 d5+ e6 d2 b7 Ke3 g7 Kf2 c5 d4 c6 b3 c7 d3 Nc3 b2 Nd5 b1R Rh4 f3 Bb2 Ra2 Qc1 d1N Nh3+ Ke1 Nb6 f2 Ng5 d2 Bb5 f1R Bc6 Qd3 Nf7 Ba3 Nd6 Nd7 b8B f5+ Kh5 f4 g4 f3 g5 f2 e7 Qc3 e8B Qh3 Bd4 Rab2 g6 Rb4 Ra2 Bb2 Be5 Re4 Bc3 Ba6 c8Q Bc4 Ba4 Be6 Qa6 Bf5 Bd4 Be6 Qc6 Nc3 Bf6 d1R Be5 Ne7 g8B Ne2 Bgf7 Ng8 g7 Bg4+ Kg6 h5 Kg5 Rh6 Qc1 Rf6 Bg6 Nf8 Bec6 Nd7 Na8 Nb6 Bh2 Nd5 Nb6 Nc7 Ba7 Na8 Qe3 Nh6 g8B Rf8 B8h7 Ng8 Nb7 Rd7 Nd6 Rg1 Bb8 f1N Be5 Nd2 Bh8 Nb3 Qf4 Rfe8 Qf8 Rf1 Qh6 Rf6 Bc7 Ba3 Rd2 Ref8 Bb8 Ng1 Rf2 Bb2 Ne8 Rg7 Bh2 Ne2 Nd6 Rd7
1b6/4N2r/n2Q1NN1/Bk5b/NpN2Bn1/R4R2/Kr1qbn2/n2QbN1r w - - 0 1 illegal: No possible last move, all moves rejected
3NRK1k/2N2RrB/B4bb1/1p2b3/2q1q2R/3B1n1r/3qRqR1/2bnBQ2 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 gxf4 g5 Kf7 Qe2 Ke8 Qg4 hxg4 Ke2 Kf7 Kd3 Kg7 Kc4 b5+ Kc5 e5+ d6 c6 h4 b3 a4 g3 d4 f3 d5 f2 a5 b2 h5 g2 a6 e4 a7 e3 f6+ Kh7 f7 e2 h6 e1B Nf3 g1B Ne5 Bb7 Rh4 Qd7 Bd3+ Qf5 Nc3 b1Q Bd2 Bc8 Ra2 Ne7 d7 f1Q+ Kd6 c5 d8R c4 Nc6 Ba6 Rd7 Bc8 Nd8 Bg7 f8Q Nbc6 Rh2 Qb2 Rg2 Bh4 Be1 Qbf2 Re2 Ne5 Qf7 Rg8 g6+ Kh8 h7 Qe4 Ke6 Bh6 d6 Rg7 Nd5 c3 Nc7 c2 Qf3 Rb8 a8B c1Q Bb7 Bh2 Ba6 Nf5 Qf4 Bb7 Rf7 Qd2 d7 Ne3 Qf6 Bc8 Ke7 Nf3+ Kf8 Be5 Qf5 Nd1 Qh3 Qg3 Qh1 Qff2 Qf1 Qgf4 Rf5 Qc4 Ke8 Rb6 Rf6 Qb2 Rf7 Qfe4 Nc6 Bc1 d8R Bf5 Kf8 Qd2 Re8 Bg5 Rf6 Bh4 Nd8 Rg8+ Ke7 Kg7 h8R Bg5 Rh3 Bh4 Rhh2 Kh8 g7+ Kh7 Rh3 Rh8 Rhh2 Rd6 Rh3 Bg6 g8B+ Kg7 Rh1 Rh7 Rh3 Kh8+ Kf8 Rdd7 Rf4 Rdg7 Rf7 Rh5 Bh7 Bhf6 Rh1 Rg5 Rh3 Rg3 Rh4 Rh3
3N1qk1/R3nq1R/bQQq4/1B1n2B1/1Rp1n1bR/q2Rn1N1/2r3KR/4b3 w - - 0 1 illegal: No possible last move
b6q/QNN1Q3/2nK1n1N/n1Bn2R1/2k2n1n/1N1n1q2/1bB3Rp/1N3N1b w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 h3 h5 Bh6 b5 Bf4 g5 Bc1 f4 Kf2 Rh6 Ke1 Rf6 h4 Rf5 gxf5 g4 Ba3 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Bc5 Qd2 Be7 Qd1 Bf8 Kf2 Ke7 e4 Kd6 c4 Kc5 a4 d5 g6 g3+ Ke1 h4 Kd2 h3 Kd3 f2 e5 f3 a5 h2 f6 b3 a6 g2 f7 b4 e6 b2 e7 b3 e8Q Bg7 f8N Nf6 a7 Bb7 a8N Nc6 Na3 b1B+ Qc2 b2 Nc7 Ba8 Ne2 g1N Ra2 Nh3 Nfe6+ Kb4 Bg2 f1Q c5 f2 Qe7 Qh8 Be4 Qg2 Bf4 f1N Rg1 Ng3 Bd6 Nf5 Ng3 Nh4 Nf1 Qf2 Rg5 Qf3+ Kd2 d3 Nd4 Nf4 Nb3 d4 Qc1 Bc2 Qa1 Bd1 Nb1 Kc4 Bf5 Qh3 Be4 Bf3 Bf5 Bh1 Be4 Bf8 g7 Qf3 g8N Bg7 Nh6 Qf2+ Kd1 d2 Kc2 Qf3 Bh7 d1N Kd2 Ne5 c6 Ne3 Bc5 Ned5 Bc2 d3 Nb5 Ng8 c7 Nc6 c8N Ngf6 Nc7 Qh3 Ke1 d2+ Kf2 Qf5 Kg3 d1N Bb6 Nf2 Nd6+ Kb4 Nb7+ Kc4 Bc5 N2d3 Nc3 b1N Rb2 Nb6 Qa7 Na3 Nb1 Nbd5 Bd1 Na5 Rg2 Nb5 Bc2 Nd4 Bb4 Nd7 Bc5 Qf7 Kg4 Ndc6 Kg3 Bb2 Kg4 Nhg6 Kf3 Qff8 Ke4 N7f6+ Kf5 Nh3 Ke6 Nh4 Kd6 Nhf4 Ba3 Qf7 Bb4 Qh5 Bc5 Qf3
R3R2n/1q1R1NBb/5bb1/2r1qN2/B1bb1bRN/1QN5/p2b1k2/K1N1b3 w - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 d4 fxe4 a4 bxa4 h4 c5 f5 cxd4 g5 Ra6 Bf4 Rf6 Bc1 Nc6 Ra2 Ne5 Ra1 Nf7 gxf6 g5 Qe2 g4 Qd1 Ng5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 Kf7 b4 e5 c4 d5 Kc2 h5 Kb2 h4 b5 d3 c5 g3 c6 a3+ Ka2 g2 c7 d4 b6 h3 b7 d2 b8R d3 Qb3+ Be6 c8N d1B Ne2 g1B Na7 a4 Bg2 h2 Nb5 d2 Qd5 e3 N5c3 e4 Qb3 Ne7 Rb7 Qb8 Bb2 Qe5 Nb5 Bc4 Bc3 Bc2 Bb4 d1B Ng3 e2 N5c3 e1B Nce2 e3 Rd7 Bd2 Bc3 Rh5 Nc1 e2 Bc6 Bd4 Rg1 e1B Bb5 h1Q g6+ Kg8 f7+ Kg7 f6+ Kh6 g7 Kg5 g8N Kg4 Bc6 Bfh6 f8R Bhf4 f7 Bh7 Re8 Ng6 f8N Nh8 Ng6 Bc2 Nh4 Bcg6 Ngf5+ Kh3 Bb5 Qb7 Ngh6 Kh2 Rg4 Kh1 Ng3+ Kg1 Nf7 Kf2 Bb2 Rf5 Nc3 Rg5 Ngf5 Rh5 Rb1 Rg5 Ka1 a2 Ba3 Rh5 Bf8 Rg5 Bg7 Rh5 Kb2 a1B+ Ka2 a3 Ba4 Bb2 Ra1 Qeb8 Ng3 Rc5 Ngf5 Bf6 Nb5 Bbe5 Nc3 Bd4 Kb1 Q8c7 Ra2 Qe5 Ka1 Kf1 Rc2 a2 Ra8 B2e3 Re2 B3d2 Re3 Kf2 Re4 Qed5 Ree8 Qe5
bQnbN1qb/NBqR1p2/2Q3qp/RrK1k3/1n6/Nr2B3/N6N/2nN4 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 d4 Kd6 e4 c5 g4 h3 e5+ Ke7 b6 b3 e6 Kf6 d6 h2 d5 b2 b7 h6 e7 f3 Ke3 f2 e8N+ Ke5 g5 c4 g6 c3 g7 c2 d7 Nf6 g8N Ne4 d6 Nc6 b8Q Be7 Na3 b1Q Ba6 f1Q Nh3 Qf6 Nf2 Qb7 Qf3 Qbc7 Nd1 Nb4 Bb7 Qg6 Ngf6 Ra6 Qg2 Rb6 Ng4+ Ke6 Rf1 h1N Kd4 Nhg3 Be3 c1B Nh2 Bh4 Qc2 Bb2+ Qc3 Bg5 Rf2 Bh4 Rd2 Qdg5 d8N+ Kf5 d7 Nd6 Ba6 Bb7 Nc6 Ba8 d8N Ne2+ Kc5 Nc8 Rd7 Nc1 Bb7 Rf8 Qc4 Bh8 Ra2 Qg8 Qb5 Q5g6 Qa6 Qf4 Na7 Qc7+ Ndc6 Ke6 Nc4 Kf5 Ra5 Bd8 Na3 Ke4 N7b5 Kf5 Nbc3 Ke6 Nd6 Re8 Na2 Re7 Ne8 Kf5 Bf2 Re3 Qc4 Rd3 Be3 Rb3 Qb5 Qcg3 Na7 Qc7+ Qc6 Ke5 Rd2 Q6g7 Rd3 Qg6 Rd7 Rb5+
q2r1k1B/B2bbN2/8/2R2Q1n/Bq2pRpn/2nBBRRn/3nr2N/6K1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 g4 fxe4 f4 h5 Qe2 g5 Qg2 gxf4 g5 Bh3 Qg3 Bc8 Qg4 hxg4 Kf2 e5 b4 a5 d4 c5 h4 f3 g6 c4 h5 a4 b6 c3 g7 a3 h6 c2 h7 a2 b7 Bd6 b5 Qf6 b6 Qg6 Nh3 e3+ Kg1 e2 Nd2 e1Q Ng5 e4 Nf7 Qh4 Rh3 Na6 b8Q Ne7 g8B Nf5 b7 Qe7 Rg3 Qge6 Bd3 Kf8 Nf1 Nh4 Be3 c1N Nh2 Nb4 Qc7 Bc5 b8B Qc6 d6 Bd7 Ba7 Nd5 Qa5 Nf4 d5 Rd8 Rb1 a1N Rb5 Bb4 Rc5 Na2 Qb5 Nc3 Qa5 Be8 d7 Qa8 d6 Nb3 Qb5 Nd2 Qa5 Rb8 d8R Rc8 d7 f2+ Kh1 f1N Kg1 Rc6 Rb8 Ba3 d8R Qeb7 Rdd5 Qb4 Rf5 Rb6 Rf3 Ng3 Rb7 Ngh5 Rg3 Nfg2 Rff3 Ngf4 Re7 Rc6 Ree5 Bd7 Rf5 Ne6 R5f4 Ng5 Nh6+ Rf6 Bb3 Rg8 Nf7 Nh3+ Kh1 Rc6 h8B Rc8 Ba4 Rd8 Qa6 Rg5 Qg6 Rd5 Qf5 Rd4 Bdc2 Rd3 Bf2 Re3 Bd3 Re2 Be3 Qd4 Ra5 Be7 Rc5 Ng5 Kg1 Qd6 Rc4 Qb4 Rc5 Nh3+
4B1Bn/3Rpp1Q/1N2k2r/bN4RB/7n/bbB3B1/n1R1q2K/R4qrb w - - 0 1 legal: proof: g4 b5 h4 c5 f4 g5 d4 cxd4 a4 gxh4 axb5 Nh6 e3 dxe3 f5 Qb6 g5 Qg6 fxg6 Ng8 b4 a5 c4 d5 c5 Kd7 b6 h5 b7 a4 b5 d4 g7 h3 b6 a3 c6+ Ke6 g6 a2 c7 h4 Nd2 e2 Kf2 e1B+ Kf3 h2 Kg2 d3 Ngf3 Nh6 g8B Nf5 g7 Nc6 b8R Rh6 b7 Ne5 Bb2 Ng6 Qc1 Nh8 Nc4 d2 Be2 d1N Qc2 Ba5 Nb6 Nc3 Rhd1 h1B+ Kh2 h3 Rd7 Nh4 Qh7 Ra7 Ra8 Ra6 Rc1 a1Q b8B Na2 Rc2 Qe1 Bc3 Rg6 Ra7 Rg1 Bb5 Bb7 c8B Bd5 Bg3 Bb3 Bb7 Qf1 Be4 Qe1 Bg6 Qe5 Bh5 Qe3 Bf2 Qe2 Nd4+ Ke5 Na8 Rh6 Bc6 Kf6 Nb5+ Ke6 Nb6 Bg2 Kg3 h2 Ra8 h1Q Ra6 Rc1 Raa7 Qhf1 Kh2 Rd1 Bg3 Ra1 Rd5 Rb1 Be8 Re1 Rad7 Rd1 Rf5 Bh1+ Rf2 Re1 Rc1 Rd1 Ra1 Qg4 Bce5 Qd3 Rc2 Rg1 Bd4 Qf1 Bb2 Rg6 Bc3 Qgc4 Qh6 Qe4 Bh7 Qe3 g8R Qee2+ Bf2 Rf6 Rg4 Rg6 Bg8 Rf6 Qh7 Bh6 Rg2 Bc1 Rg6 Ba3 Rg5 Qg4 Bfe1 Rh6 Bg3 Qge2+
1BB2b1b/3n3b/n3Q1pR/2r1R2R/2b1B3/1KBr2b1/1NRq2p1/k4bBN w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 e5 c4 Qxh4 cxd5 Qh2 f4 exf4 g3 fxg3 d4 Ke7 Kd2 Kf6 Kc3 a5 b4 c5 e4 h5 d6 g6 e5+ Ke6 b6 Kd5 d7 f5 d8B a4 b5 a3 b7 c4 e6 h4 b6 h3 e7 a2 e8B f4 Bd7 f3 Bb2 f2 Qb3 Ra5 Na3 Rc5 Rc1 a1B Bd3 f1B Ne2 Nf6 Rc2 Na6 b8B Rh4 B7f5 Bd7 b7 Bb5 Bc8 Nd7 Bb6 Qf2 Bf5 h2 Qa2 Rh3 Be4+ Ke6 d5+ Kf6 d6 Ke5 Rg1 h1B Qb3 Bf3 Rh1 g2 Ng3 Bg4 B6a7 Be6 Rh2 Bg8 Qa2 Rh8 Nh1 Bh7 Rh6 Rg8 Bc7 Rg7 b8R Re7 Bcb6 Re8 Rb7 Rd8 Bb8 Qe2 Rc7 Qf2 Re2 Qe3+ Kc2+ c3 Qe6+ Kd4 Kb3 Qf4 Nc4 Qd2 Bd5 Kd3 Re5 c2 Bc3 c1B B6a7 Ba3 Ba8 Bb4 Bf3 Ba5 Rc6 Bc7 Be4+ Ke2 Reh5 Kd1 Nb2+ Kc1 Bb6 Rc4 Bg1 Rc5 Bf3 Kb1 Bd5 Nb6 d7 Bg3 Rc7 Re8 d8R Nd7 Bc6 Re7 Re8 Rf7 Na4 Rf3 Be4+ Rd3 Re7 Bb2 Re8 Ba3 Nb2 Ka1 Qc4 Bg7 Ree5 Bh8 Qg8 Rcd5 Rc6 Bf8 Rc4 Rc5 Qe6 Rd6 Bb4 Rd4 Rc2 Rd3+ Bc3 Bc4+
NRNR1R1b/1K2n1n1/1b6/q1q2nN1/1r2qN2/4q3/bR1pQ1pR/4BBk1 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 d5+ Kd3 Kf5 b4 h4 c5 h3 c6 g2 e3 h2 g6 a4 g7 a3 c7 g3 b6 a2 b5 Nd7 b7 Rh4 b8N Nc5+ Kd2 Ke4 b6 f5 b7 d3 Kc3 d4+ Kc4 d2 Kb5 d3 Kb6 f4 Nd7 f3 b8R f2 Rb7 Ne6 Nf3 g1Q Qe1 d1N Rb8 Ne7 g8R Ng7 Qe2 Ba6 Bb2 Bc4 Kb7 d2 c8N g2 Be5 Qa5 Ndb6 Qc5 Na8 Rg4 Na3 Rf4 Rb1 a1B Nb5 Ba2 Nbc7 Bd4 Ne6 Qa5 Ne1 Bb6 Nd3 Rh4 Qe1 Kf3 e4 Ne3 Bg3 N3f5 e5 Rb4 Rb2 Qc5 Ndf4 Qa5 Bb5 f1Q Qd1+ Qe2 Ng5+ Ke3 e6 Qc4 Bh4 Qc5 Be1 Qf2 Rh8 Qg3 Rf1 h1Q Rh2 Qg1 Rf2 Qh4 Bf1 Qg4 Nh5 Qgd4 Rf4 Qdc4 Rd4 Qd3 Nf4 Qe4+ Rd5 Nh5 Qg4 Bg7 Qd1 Bh8 Qg4 Ng8 e7 Nhg7 e8R Nge7 Rg8 Qf2 Rf8 Qff3 Bh4 Qg3 Qd1 Kf2 Qe1+ Kg1 Qe2 Qb1 Rdd8 Qge3 Be1 Qbe4+
2RR4/Bb1N3n/1R3Rq1/qQrB4/1Nb5/B1p3bq/2b1B1Rp/k1nK2n1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 b4 a5 h5 a4 h6 Ra5 bxa5 gxh6 Ba3 h5 Bc1 h4 e4 Kd7 d4 Kd6 g4 f5 b6 c5 g5 h5 a6 a3 g6 c3 b7 c4 a7 c2 a8B h3 g7 f3 e5+ Kd5 e6 a2 e7 h4 e8R c3 Bb5 h2 Na3 h3 Re3 f4 Re4 f2+ Ke2 f1B+ Ke1 f3 Rb1 a1Q Nc4 Bd6 Qd2 Qe8 Ne5 Nc6 b8B Bd3 Rg4 Bb7 Ne2 Nf6 g8R Qa5 Ba7 Qg6 Rf1 h1Q Nd7 Rh5 Ba3 c1N Kd1 f2 Rg2 Nh7 Qb2 Ne5 Rc8 Nf3 Nf4+ Ke4 d5 Ng1 Qb3 Bb8 d6 Rc5 Nd5 Kd4 Re1 f1B Re6 h2 Nb4 Bc2+ Ke1 Bc4 Rf6 Be6 Be2 Bc4 Qa4 Bc7 Qb5 Bb8 Rg3 Qf3 Rg2 Qh3 Rb2 Ba6 Bd5 Bb7 Nf8 Ke3 d7 Be5 d8R Bg3+ Kf1 Kd2 Nd7 Nb3 Rf4 Kc1 Rf6 Bb8 Ke1 Be5 Ra2+ Kb1 Rb2+ Ka1 Re6 Bf5 Kd1 Bg3 Rb6 Nc1 Rd2 Nf6 Rd4 Nh7 Rf4 Bb1 Rff6 Bc2+
b2NNr2/n6R/1rprn1R1/N2k1n2/3N4/nrBQq1p1/1BnKN2R/7R w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 Qa4 h5 Kd1 f5 Bg2 f4 Bh3 f2 Kc2 f3 Bg4 Bd6 Qb3 Bf4 gxf4 hxg4 Kc3 Bd7 Qd1 Be6 Kc2 Bc8 h4 Ke7 b4 Kd6 d4 f1R e4 g5 e5+ Kd5 b6 a5 f5 f2 h5 c3 f6 a4 f7 a3 f8B a2 b7 g3 e6 g2 h6 g4 b5 g3 h7 Qe7 b6 Ra6 Na3 Nc6 b8R Nh6 b7 Nf5 Ne2 g1R Bb2 Na7 Nc4 Rb6 Qd3 Rb1 Rh2 f1N Na5 Nd2 Bg7 Rf8 h8R Rgd1 R8h7 Nc4 Be5 Qg5 e7 Qe3 e8N Bd7 Ra8 Bc6 b8N Bb7 Nbc6 Rb3 Nd8 c6 Ne6 Rb6 Rb8 Ba8 Rbb7 Rb3 Rbg7 Rb6 Rg6 Rb3 Bd6 Rb6 Bb4 Na3+ Kb3 c2 Kc3 Rbc1 Rb1 Rd2 Ra1 Rf1 Re1 Rf3 Reh1 c1N Rf7 Nc4 Rfh7 Rd1 Kc2 Nb3 B4c3 Nc5 Nf6+ Kd6 d5 Rd2+ Kc1 a1N N6d4 Na3 Ne8+ Ke5 d6 N1c2 d7 Ne6 Qa6 Ke4 d8N Rd3+ Bd2 Rdb3 Qd3+ Kd5 Kd1 Rf4 Bdc3 Rg4 Rf6 Rg7 Rfh6 Rd7 Rg6 Qf2 Kc1 Rd6 Kd2 Qe3+
3bQnn1/2kN3n/Rq2R3/4q1q1/K2Rb3/R2B2p1/pR1QN1n1/1q2r1RB w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 Kd2 d5 c4 Kd7 Kc2 d3+ Kb3 f2 e4 g4 h4 g5 f6 d4 b6 d2 b7 d3 h5 g3 e5 g2 h6 g4 e6+ Kd6 c5+ Kc7 e7 g3 e8R f3 h7 Nh6 c6 Qd6 f7 Ng8 Ra3 Be7 f8R Bf5 Ne2 g1N Nbc3 Bd8 Ne4 Qe5 Nc5 Be4 Rf4 Nd7 b8R Nf8 Re6 Nh3 Rb6 Ng5 Ra6 a4+ Kb4 Nh3 Qc2 d1Q Qd2 Qc1 Nd7 Ng5 Rg1 Qb1 Bg2 f1Q Bh1 f2 b3 Qfc1 Rg4 Bd5 Rd4 f1N Ka5 Qcb2 b4 Ne3 b5 Ng2 b6+ Kc8 Qe1 d2 c7 d1Q Qd2 Qf1 Re3 a3 Ka4 a2 Rc3 Nh6 Ra3 Rg8 h8Q Qff6 Rb3 Ngh7 Ra3 Rg5 Qg8 Kb7 Qf7 Be4 Qe8 Qd6 c8B+ Kc6 b7+ Kc7 b8R Qde5 Rbb3 Ng8 Rb8 Qb6 Bb7 Rg7 Bd5 Qg6 Bc4 Re7 Bb5 Qgg5 Bd3 Qbc5 Rb2 Qb6 Qg6 Rf7 Qh5 Rf1 Qe8 Re1
7q/1R1B3p/1B1BN2N/bn1Bb3/B2q2QK/Rq1k1nRR/2bp1qq1/4n3 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 h3 f5 Kd2 b5 Bb2 g5 Ke1 f4 Ba3 Nf6 Bc1 Rg8 h4 Ra6 Bg2 Re6 Bh3 Re5 Bf1 Rf5 gxf5 g4 Bg2 Qe7 Bf1 Rg5 hxg5 Qd8 Kf2 Ke7 a4 Kd6 e4 Ke5 c4 d5 g6 g3+ Ke1 g2 Kf2 d3 g7 Kd4 g8R b3 c5 b2 a5 d2 a6 b4 c6 b3 e5 Nbd7 c7 Nc5 e6 Nfd7 a7 Bd6 a8R Ne5 Nc3 b1N f6 b2 e7 Bf5 c8B Bc2 e8B Na3 f7 b1Q f8B Nb5 R1a7 Qb3 Nce2+ Kd3 Rh3 d4 Rb7 Bc7 Rg5 Ba5 Bcd7 Qf6 Rgg3 Qh8 Qe1 d1Q Qb4 Qd2 Bd6 Qd1 Be3 Qa1 Rh4 Qab2 Nh3 g1B+ Ke1 Bh2 Kf2 Qa1 Bg2 Qac3 Ng5 Qd2 Kf1 f2 Bd5 Nf3 Kg2 Qd1 Kh3 f1Q+ Kg4 Qg2 Ne6 Qdg1 Bc8 Bc7 Rba7 Nc3 Ra3 Ne1 Bf8 f3 Bd6 f2 R8a7 f1Q Rb7 N5e4 Rh3 Nd2 Kh4 Ba5 Rf3 Be5 Ba4 Nb5 Rfg3 Qff3 Bd7 Qff8 Bc4+ Ke4 Bf2 d3 N2d4 Qff3 Nf5 Qe2 Bb6 Ndf3+ Kg4 d2 Nh6 Qee3 Bd5+ Kd3 Qf4 Qd4 Kh5 Qge3 Qg4 Ng5 Kh4 Qef3 B5c6 Qfe3 Bf3 Qef2 Bd5+ Ngf3+
2B2q1B/RB2b1rk/b3rp1B/1q6/1R1b1pKN/3Nr3/1rq1QN2/4Nb1N w - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 d4 axb4 g5 c5 g6 cxd4 Bb2 f6 Ba3 Ra5 Bc1 Ra8 h3 Nc6 Kd2 Ke7 Bb2 Ne5 Ke1 Nf7 gxf7 g5 Bc1 Nh6 Bb2 Ng4 Bc1 Nf2 h4 g4 Nd2 Nh3 Nb1 Ng5 hxg5 Kd6 Nh3 Ke6 Ng1 Ke7 Kf2 h5 a4 b5 e4 d5 c4 h4 a5 h3 g6 g3+ Kf3 d3 a6 h2 a7 g2 g7 b3 g8N+ Ke6 e5 Kf5 e6 Kg6 e7 b2 e8N d4 c5 b4 c6 d2 c7 b3 Nh6 d3 Nc3 b1R Qe2 d1B Ng7 d2 Ne4 b2 Ngf5 Ba4 Kg4 d1R Nf2 Bb3 Nf3 g1B Ne1 Bb7 c8B Qd6 Nh4+ Kg7 Bg2 Rd3 N6f5+ Kh7 Ng3 Be7 f8B Bc4 Bg7 Bba6 Bgb7 Re8 Bh8 Re3 Bd2 Qe5 Bb4 Qb5 Ba3 Rb8 a8N Rc1 Nb6 b1Q Na4 Qc2 Nc5 Rb1 Nh3 Rb2 Ncd3 Ra8 Nhf2 Ra7 Bc5 Re6 Ra4 Re3 Rb4 Re6 Nh3 Bd4 Nhf2 Re3 Rg1 h1Q Rf1 Qd5 Ngh1 Qf7 Rg1 Qf8 Rg3 Bd8 Rg2 R8e6 Rh2 Qfe8 Bf8 Be7 Bh6 Qf8 Nhg2 Qd7 Rh5 Qb5 Nh4 Bd5 Rg5 Bg2 Rc5 Bf1 Rc7 Ra8 Bg2 Rb8 Ra7 Rb7 Bc6 Rd7 B6b7 Bd8 Rc4 Rf7 Ra4 Be7 Rb4 Rg7+
2N2n1R/2b5/2kq3b/Qrp1p3/2RRr2N/NRq3rN/2p4B/1n1nRB1K w - - 0 1 legal: proof: g4 d5 e4 g5 h4 b5 c4 f5 a4 Bd7 f3 dxe4 f4 bxc4 fxg5 f4 h5 Bb5 h6 Nxh6 axb5 Ng8 Kf2 Kd7 Kg2 a5 b4 c5 d4 h5 d5 e5 d6 a4 b6 e3 b5 h4 b7 c3 b6 a3 g6 c2 g7 f3+ Kh2 a2 g5 h3 g6 f2 Na3 e2 Qe1 Ra5 Bf4 Nf6 g8N Bh6 g7 Nd5 Ne7 Rb5 g8N Nc3 Ng6 Nb1 N8e7 Rg8 Nc8 Kc6 Qa5 e1B Nh4 Nd7 b8R Nf8 d7 Rg3 b7 Qc7 d8R Qd6 Ra8 Bc3 b8R Be1 Bd3 f1R Ra7 Rff3 Bf1 Re3 Rg7 Re4 Rg4 Qc7 Rd4 Qd6 Qa4 Ba5 Qb4 Bb6 Qa5 Bc7 Rb7 Nd2 Re1 a1Q Rb8 Qc3 Rc4 Rb2 Rb3 Nb1 Bc1 Ree3 Rgd4 Re4 Bf4 Qe3 Rbc3 Rb5 Rb3 Qd3 Ngf3 Qc3 Ng5 Rd3 Kg1 h2+ Kg2 Rde3 Nh3 Rd3 Rg1 h1N Bh2 Nf2 Rh1 Kb7 Rg1 Nd1 Kh1 Rf3 Rg8 Rg3 Rh8 Kc6
6k1/b1BR1R2/1N1Q1pN1/2N2qN1/r2bn1qq/p1n2r2/p6B/QqKN1N2 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 g4 bxa4 g5 f6 g6 Be6 Qb3 Bf7 Qc2 Nh6 Qd1 Ng8 Bh3 h5 Bg4 hxg4 gxf7+ Kd7 h4 Ke7 e4 g5 d4 a5 Kd2 c5 b4 c4 d6+ Ke6 e5 g3 d5+ Kd7 b5 g2 e6+ Kc8 d7+ Kc7 b6+ Kd6 e7 g4 e8N+ Ke7 h5 g3 d6+ Ke6 h6 a3 h7 a2 b7 a4 Nc3 a3 Nge2 Na6 b8N Nc5 Na6 g1B Bb2 f3 Kc1 g2 Ng3 f2 Nf1 Qb8 d8Q Ne7 d7 Qg3 Nd6 Qh4 Nc8 Ne4 Nb6 Nd5 Qe1 Be7 f8N+ Kf7 Ne6 Bc5 Nd1 Bd4 Nac5 c3 Ng5+ Kg7 Qc7 c2 Qd6 Ra4 d8B Ndc3 Bc7 Rd8 h8N Kg8 Ng6 Rd7 Nfe3 f1Q Rb1 Qf5 Nf1 Rh7 Rh3 Bgf2 Rd3 g1Q Ba1 Qgg4 Rb5 Qd5 Ra5 Qdf5 Ra7 Nb5 Bc3 Rh8 Bd2 Nbc3 Bf4 Rh7 Bd8 Rb7 Bh2 Rb8 Rf7 Rb7 Nd5 Rb3 Bc7 Bg1 Na6 Ba7 Nb6 Bd4 Nc5 Nb5 Rd2 Rf3 Re2 Nbc3 Rd7 Nd2 Ree7 Nde4 Rf7 Qgf4+ Nde3 Ng3 Kd2 Qf4g4 Qa1 Nge4+ Kd3 Nb5 Ke2 c1Q Nd1 Ng3+ Ke1 Qcb1 Kd2 Nc3 Na6 Qbb5 Nc5 Nge4+ Kc1 Qb1+
n3R2R/2p1N1rp/BQB2k2/qN4R1/1K1b1N2/1NR3p1/1N1r2q1/n1b2b1b w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b6 h4 b5 b3 b4 Bb2 gxh4 Bf6 Ba6 Bg5 Bc8 Bf4 e5 Bg3 Nf6 f4 exf4 a3 fxg3 axb4 Ng8 b5 Qg5 Ra5 Qe7 Ra1 Qd8 d4 Ke7 Kd2 f5 Kc3 a5 e4 h3 g5 f4 d6+ Ke6 b6 a4 g6 f3 b7 f2 d5+ Ke5 g7 h2 d7 a3 d6 a2 b4 Ra4 b5 Na6 b8N Qe8 d8R Qe7 b6 Qe8 b7 Qe7 d7 Kf6 e5+ Ke6 Nf3 Rf4 Nc6 Rd4 b8R Qf7 Ne1 Nb4 Na3 Be7 Ba6 f1B Nd3 Bf8 Re8+ Qe7 Qb1 Nf6 g8N Nc2 Nb2 Bb7 Nb5 Rd2 Na5 Bh6 d8N+ Kf5 e6 Qf7 e7 Nd7 Nb3 Nb6 Ne6 Na8 Rg1 h1Q Nf4 Qg2 Rh1 Bg5 Rh5 Bc6 Rf8 Bf3 e8B Bc6 Ne7+ Kf6 Bd7 Rg8 Rbe8 Rg7 Rh8 Bb7 Bc6 Bh6 Qe1 Qfd5 Rc1 a1B Qf2 Qe6 Nc5 Qa2 Nb3 Bg5 Qb6 Bh6 Ne2 Bg5 Kc4 Be3 Rg5 Bd4 Nd3 Bab2 Nef4 Na1 Rc3 Bc1 Kb4 Rg6 Ne6 Rg7 Nb2 Qf2 Bd7 Bh1 Bc6 Qg2 Nf4 Qa5+
rQ2Qr1q/N3r1QB/Q2qbB1q/Qp1p2n1/b5N1/p6k/Q3R3/b3R2K w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 b5 Qd3 Nc6 Qe2 Nb4 Qd1 Nd5 b4 Nb6 axb6 Qc7 Bh6 Qc3+ Bd2 Qb2 Bc1 Qxb4+ Nc3 Qa3 Nb1 Qb2 g4 Kf7 c4 Kf6 f4 h5 g5+ Kf7 g6+ Kf6 b7 e5 b8Q a5 g7 e4 c5 d3 c6 d2+ Kf2 a4 Kg2 a3 c7 d6 Nh3 e3 Nf2 e2 Ng4+ Kf7 f6 Ke6 f7 Kf5 Qa4 d1Q Qa5 e1R+ Nd2 Nh6 g8Q Be6 c8Q Bg7 f8Q+ Nf7 Qfe8 Ng5 Rh2 h3+ Kh1 h4 Re2 h2 Nf3 Bf6 Qg7 Rf8 Qca6 Qbd2 Rb1 Ba1 Bb2 Qd4 Qg8 Qh8 Nfe5 Bb3 Qc4 Ba4 Nc6 Qh6 Bf6 Qd5+ Rg2 Re7 Na7 Qe5 Rf2 d5 Qe2 Qd6 Qa2 Qh8 Re2 Qh6 Kg2 h1B+ Kh2 h3 Rbe1 Be4 Bg2 Bec2 Kh1 h2 Be4+ Ke6 Be5 Bb1 Bh7 Bg6 Bf6+ Kf5 Ne3+ Ke4 f5 Kf3 Ng4 Kg3 Bd4 Kh3 f6 Bf5 f7 Be6 Bf6 Rg8 f8Q Rh8 Qg7 Rf8 Qh8 Qh4 Bd3 Kg3 Qg7 Qh8 Bh7 Kh4 Kg2 h1Q+ Kf2 Qh3 Kg1 Kg3 Bd3 Q3h5 Bh7 Kh3 Kh1 Qh6
1Rb3N1/1pQN1N1n/1n3n2/RR3RR1/1K1npB2/2p3BN/2kq3n/2r3bb w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b4 axb4 g4 hxg4 f4 f5 e5 Nd7 Bg2 Ra6 Be4 fxe4 f5 Rf6 exf6 Nb8 h4 Kd7 d4 Kd6 Kd2 g5 a4 c5 f7 e5 a5 c4 a6 g3 f6 g4 h5 b3 Kc3 g2 a7 b2 a8R e3 h6 e4 h7 e2 R1a5 e1N Qc2 g3 Rb5 Bh6 f8R Be3 f7 Nf6 Kb4 Nbd7 Nh3 g1N Nc3 b1B Raa5 Ngf3 Rg1 g2 Bd2 Rg8 h8R Nb6 Rh5 Rg4 Rf5 Nh2 Rh8 Rg6 f8N Nef3 Nd7 Ng5 Be1 Ngh7 Bg3+ Bf4 Qc1 Bc2 Rf8 Bd1 Rg8 Ke7 d6+ Ke6 Nd5 Be3 Ne7 Bf3 Rh8 Bf2 Ng8 c3 Qf4 Rh6 d5+ Kf7 Rf1 g1N Rg5 Ne2 Qe5 Bg1 Rf2 Bh1 Rff5 Rg6 Bf4 Qf8 Bg3 Kg7 Qe7+ Qf7 Qd8 Nd4 Qc7 Qe7 Be1 Nfg4 Ngf6 Bf2 Nb8 Nb3 Rh5 Qd7 Rf8 Rg5 Ng8 Kg6 Bd2 Ngf6 Bc1 Qd8 d7 Rg1 d6 Be3 Bd2 Rc1 Be1 Bg1 Bg3 Qe8 d8N Be6 Nf7 Qd8 Na6 Qd7 Rb8 Qd8 Nc5 Bc8 d7 Nd4 Qe5 Qc7 Qe7 Qf4 Qe5 Qd2 d8B Nfd7 Bc7 Ndf6 Nfg5 Nfg4 Nd7 Ngf6 Nf3 Kf7 Qf4 Ke6 Nfe5 Ne8 Rhg5 Nef6 Nc5+ Kd5 Bd6 Nb3 Ncd7+ Kd4 Nf7 Kd3 Qe5 Kc2 Qc5 Ne8 Bdf4 Nd4 Qc7 Nef6
2k1N1R1/1pB1R1p1/7r/1rqR2NQ/4rR2/4q1Bp/1K1NbRN1/n1r3rn w - - 0 1 illegal: No proof kernel
2N2b2/4NKBb/1N1B3N/1BRbbpp1/Qn4B1/p3k3/1R1rq1bb/qN6 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 bxa4 g5 d5 g6 d3 Nf3 hxg6 Ng1 g5 Qe2 g4 Qf3 Nh6 Qd1 Ng8 f3 e5 Bd2 a5 Be3 d4 Bc1 Nc6 f4 Nb4 Ra2 Nd5 exd5 e4 Ra3 Rh5 Ra1 Re5 fxe5 Ra6 Ne2 Rh6 Ng1 Rh8 Kd2 Kd7 h4 f5 b4 g5 c4 g3 c5 g2 d6 Kc6 b5+ Kd5 d7 a3 b6 a2 b7 a4 b8N a3 e6 Qe7 d8N Qg7 e7 Qg6 e8B Qc6 h5 Bd6 h6 Bf8 h7 Nf6 Nf7 Be6 Nd7 Qb5 Nf3 g1B c6 Bh2 Nh6 Bg8 c7 Kc4 c8N Nd5 Bg2 Nb4 Bh3 Qe5 Bg4 e3+ Ke1 e2 Kf2 d2 Nh4 Kd3 Ng6 Qe6 Qa4 d1B Nge7 Bb3 Bf4 Bd5 Rc1 Qa6 Rc5 e1B+ Kf1 Qb5 Bd6 Beg3 Ndb6 Be5 Kf2 Ke4 Bd7 d3 Bc6 Qa6 Bb5 d2 Ke2 d1B+ Kd2 Beg3 Kc3 Be2 Bh3 Kf3 Kd4 Bf1 Bg4+ Kf2 Bf4 Bfg2 Ke5 Bh1 Kf6 Bhg2 Bd6 Ke3 Nd2 Bf4 Rb1 a1Q+ Rb2 Be5+ Kg6 Na2 Nb1 Nb4 Bd7 Qe2 Bb5 Bge6 Kh5 Rg8 h8B Rg6 Bg7 Bg8 Bc7 Rc6 Bd6 Rc7 Kg6 Rd7 Ra2 Bb7 Rac2 Bh7+ Kf7 Rd8 Rb2 Ba8 Bb8 Rd2 Bd6 Bad5+
Qr2r1Nq/K1p4q/1N5B/b3p3/2rp4/R2B1qNb/2b1B1BN/1BR2bk1 w - - 0 1 legal: proof: e4 a5 c4 f5 b4 axb4 h4 fxe4 h5 b5 h6 b3 Qe2 gxh6 Qg4 h5 Qd1 h4 Ne2 Nf6 Ng1 Nd5 d4 b4 Nc3 Nc6 Nb1 Nc3 d5 Nb5 cxb5 e5 Bb2 Nd4 Bc1 Ne6 dxe6 Bd6 Qf3 Bc5 Qd1 Bf8 Ke2 Ke7 a4 Kf6 f4 Kf5 g4+ Kg6 e7 h5 e8B+ Kh6 f5+ e3 Kd3 Kg5 Kc4 Kf4 a5 Kg3 g5 Kf2 g6 b2 a6 d6 b6 h3 Kb5 h2 g7 e2 g8B e1Q b7 b3 b8N h4 a7 h3 f6 d5 f7 d4 Ra3 Bb4 f8N Ba5 Nfd7 Bd2 Bh7 Qe4 Nb6 Qe3 Be2 Qf4 Nf3 Ba5 Nbd2 b1Q Beg6 b2 Qa4 Re8 Nc6 Rb8 a8B Qf8 Rd1 h1B Bgd3 h2 Ne7 Bg2 Ng8 h1R Nf1 Bch3 Ng3 Bf1 Nh2 Qf3 Ka6 Kg1 Bh6 Qc2 Bc6 b1B Ka7 Qdf6 Rc1 Qh8 Bdb5 Qg6 Bbd3 Bc2 Bd5 Qgf7 Bhe4 Qfh7 Ba2 Kf2 Bb1 Rg1 Qc6 Rg2 Qa8 Kg1 Nf5 Rg6 Ng3 Rc6 Bd5 Rc4 Bc6 Qf4 Bg2 Qf3
1n2K2r/BRR3Nq/1qpp1krR/4N1Rp/R1Bn3p/2Q4n/2q5/1R1Qb3 w - - 0 1 illegal: No possible last move
2N1n1Kn/1R2RN2/1p1QRn2/pr2B2B/4kp1N/1p1b1R2/5bqn/N2b3R w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 a4 c5 a5 b6 b3 Nc6 b4 Rb8 a6 cxb4 Ba3 Rb7 axb7 a5 Bc1 Nb8 Kf2 Ke7 Kf3 Kf6 Ke4 h5 d4 f3 g4 b3 g5+ Kg6 Ke5 f5 e4 f2 d6 f4 d5 h3 d7 h2 Ke6 h4 e5 h3 d6 Rh4 Nf3 Nh6 Be2 f1B Na3 Ng8 Nc2 Rh5 Bb2 Nh6 Nh4+ Kg7 g6 Na6 b8R Qg5 Rb7 Qg2 Qd4 Nf7 Re1 Nh8 Na1 Rg5 Bh5 Bd3 Qb4 Kh6 g7 Nc7+ Kf6 Kh7 d8N Bg4 g8N Bd1 d7 Bc5 e6 Bf2 e7 Rb5 Qd6 Ne8+ Ke6 Qf1 Nf7 Qg2 Re5 Kg7 d8R Kh7 Rhe1 h1N R5e4 h2 Be5 Ng3 Rh1 Nf1 Re1 Nf6 e8R Kg7 Ne7 Kh7 Rg1 h1N Nc8 Nh2 Ree7 Ne8 Rgf1 Bg3 Rg1 Nf2 Rh1 Nfg4 Rdd7 Bf2 Rdc7 B3e2 Rc3 Bf1 Rf3 Bd3 Nd8+ Kh6 Re2 Kg5 Ree1 Ng6 Kf7 Nh8+ Kf8 Ne3 Kg8 Neg4 Ng6 Kf5 Nf7 B1e2 Nh4+ Ke4 Rc1 Bd1 Re6 Qg3 Rcc7 Qg2 Rce7 Ngf6+
1b3qN1/1RnKB3/6Q1/rbNnRn2/2B2Nn1/n5N1/1q2Nb2/nr1k1qRR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 Kc2 c5 d2 c6 d1Q c7 d3 Be2 h2 Qf2 d2 Bf1 a2 Qe1 h3 Bg2 f2 Ne2 f1N Qg3 f3 Qg5 f2 Qe7 Ra5+ Kf4 Nf6 g8N Na6 b8R Nd5+ Ke5 Nfe3 b7 f1Q Rg1 h1N Qg5 h2 Bb2 Bc5 Qg6 Ng3 Nf4 h1N Ba3 Qde2 Nc3 d1N Bb4 Qd2 Nce2 Nhf2 Rb1 Bb6 Be7 Qf8 Kd6 a1B e5+ Ngf5+ Kc6 Nb2 e6 Rh1 Be4+ Kb3 Bd3 Nfg4 Bc4+ Kc2 Re1 Na4 Rb1 Nac3 Rd1 Nb1 Re1 Rh6 Rh1 Be5 Rd1 Qg2 Rdg1 Na3 Qg7 Nd6 Bh4 Bb2 e7 Be5 e8R Qf1 Bg5 Rf6 Qg6+ Ndf5+ Re6 Bd6 Re5 Kd1 Bh4 Nec2 Bg5 Be6 c8N Na1 Bh4 Bdc7 Nd6 Bf2 Ne4 Bd6 N4g3 Bc8 Ra8 Rf7 b8N Rb7 Be7 Rb1 Nd7 Qb2 Nc5 Bb8 Ra7 Bb7+ Kd7 Nac7 Ba2 Ba6 Bc4 Qc3 Rb7 Qc1 Ra7 Qb2 Rb7 Bb5+
1K1Nr1r1/1nNb1B2/bbb3B1/5br1/Nkr1qB2/5NBq/2R2RrB/n4Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 g4 d5 e4 a5 c4 h5 b6 h3 b7 d3 b3 h4 g5 h2 g6 f3 g7 f2 Bd2 a4 Be2 f1R Qc1 h3 Bh6 a3 Bh5 d2 Qe1 d1R Bd2 a2 Bf4 d4 Qd2 d3 Be8 Nf6 g8B Rc1 Bg6 Rf2 Be6 Rg2 Bef7 Rg8 Nc3 Ne8 Qd1 d2 Na4+ Kb4 c5 Nd6 c6 Na6 b8B Nc5 c7 Ndb7 Nf3 Qh4 Qf1 Rc4 Rc1 d1B Rc2 Bd7 c8N a1R Nd6 Ra5 Rg1 h1B Kd5 h2 e5 Qh7 e6 Qh3 e7 Ra3 Bg3 f4 e8N Rb5 Rf2 Bc2 Nc7 Bcf5 Ke5 Ra2 Rc2 Bg7+ Kd5 Re2 Rg2 Bd4 Rf2 Be3 Ke5 Bg2 Kd5 h1Q Bh2 Bd4 Bg3 Ree8 Bh2 Ka3 b4 Ra5 b5 Nb3 Bg3 Na1 Bh2 Bc5 b6 Kb4 Bg3 Nd8 b7 Bb6+ Ndb5 Rb2 Kd6 Ra2 Nbd4 Rac5 Nd2 Bgc6 Nde6 Qe4 Bh2 Bg4 Nf3 Rg5 Ba7 Bf5 b8B Ba5 Be3 Bb6 Ne5 f3 Bef4 Rb2 Rg2 f2 Ba7 Ref8 Rc1 Rbc2 Ne8 Bc5+ Kc7 R4c3 Nf3 Rd2 Kb8 Rc4 N8c7 Nb7+ Nd8 Re8 Bfg3 Be3 Bd4 Re2 Bde5 Bb6 Rc2 Rd4 Qc1 f1B Bef4 Rf2 Qd1 Ba6 Qf1 Rc4 Qg1 Rf1 Rgf2 Rb1 Qg2 Rg1 Qf1 Rg2
2bq1RB1/2RR1q2/kNB2rbQ/2BNrr2/1bq5/2B1Rn2/1Kr5/2B1br1n w - - 0 1 illegal: No possible last move, all moves rejected
4R2q/5rQq/NqRn2b1/1k6/r2R2K1/b1nqB1Rr/1b1NB1nN/1Nr2R2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 Kd7 g4 f5 c4 h5 b4 a5 e4 h3 g5 d3 b6 Kc6 e5 a4 g6 h2 g7 d2 e6 d4 b7 a3 e7 h4 e8R d3 c5 h3 Qc2 d1Q+ Be2 d2 Re5 a2 Nc3 Ra4 Qb2 Na6 b8R Ne7 g8N Ng6 Nf6 Nh4+ Kf2 f3 Kg3 f4+ Kf2 Bf5 Bd3 Bg6 Be2 Nc7 Re3 Ne8 Nfe4 Ng2 Rb1 a1B b5+ Kd7 b6 Kc6 b7 Qb6 Rd8 Rh4 Ra8 Qdb3 Rd8 Qg8 Rb8 Qh8 Ra8 Rh7 Rd8 Rf7 b8N+ Kc7 Na6+ Kc6 Qb4 Bd6 Rb3 Bb2 Qd4 Bf8 Qg7 d1N+ Kf1 Be7 Nb1 Bd6 Rbd3 Kb5 c6 Nc3 Kf2 Be7 c7 Bb4 c8R Nd6 Re8 Bc5 Rc6 Bca3 Kf1 f2 Nf3 Qg8 Bd1 Qh8 Rg1 h1R Rd4 h2 Bd2 Nd5 Ke2 f1R Rec3 Re1+ Kf2 Re3 Rcd3 Nc3 Re1 Rg1 Bc1 h1Q Bd2 Q1h3 Nh2 f3 Be2 Q3h6 Kg3 Q6h7 Kg4 Rf1 Bd1 f2 Bc1 Rh3 Rg3 Nf5 Be3 Nd6 Ned2 Rg1 Bf3 f1Q Bd1 Qd3 Be2 Rgf1 Rc1 R1f5 Rh1 Rf1 Rg1 Rd1 Rf1 Rc1
B5n1/2b5/2Brq2b/1NQ1rb1B/K2NN1r1/r1q2R2/Nb1R2n1/kq1nBB2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 a4 Ke6 h4 Kd5 h5 Kc4 e4+ d3 e6 d5 c3 b5 h6 f5 e7 g5 e8B b3 a5 f4 e5 f3 e6 g3 e7 b4 a6 d4 a7 b2 h7 f2 Bh3 f1Q Qe2 Kb3 c4 g2 c5 g4 c6 g3 c7 Nc6 Ra6 Qd5 Qf2 Ne5 Rg6 Ka2 Bhd7 b3 Ne2 g1B Bc6 g2 Rg7 Ka1 Nbc3 b1Q Bed7 b2 e8N Bh2 Rf7 g1B Qe3 Qff3 Na2 Qe6 Nf6 Bh6 Be8 Ng6 Ne4 Nf4 Rf6 Bf2 Bh5 Ng2 Rd1 Be5 Rf8 Bfg3 Qg5 Rb8 a8B Rb3 Rf6 Bd7 c8B Bc7 Rf8 Bge5 Ba6 Rb5 Rf4 Beg7 Qe7 Re5 Qc5 Qg3 Rf1 Qf3 Rf2 Qfh3 Kd1 d2 Rf6 Qc3 R6f3 Ne7 Bab5 Rg8 h8N Bf6 Ba6 Rg4 Nf7 Ng8 Nfd6 Bh8 Nb5 Bc8 N2g3 B8g7 Nf5 Bf6 Ke2 d1N Bd2 Bfg7 Be1 d3+ Kf1 d2 Ke2 Nde3 Nfd4 d1R Nf5 Rd6 Nfd4 Qa3 Kd2 Bf6 Qc2 Qc5 Kd3 Nd1 Rd2 Bh8 Bd5 Qa3+ Kc4 Qd3+ Kb4 Qc3+ Ka4 Qc4+ Ka3 Qe8 Bdb7 Rc5 Ne6 Qc1 Nf8 Bf5 Ne6 Qd3+ Kb4 b1R+ Ka4 Rb3 Bc6 Bb2 Nbc3 Qb1 Nd4 Qe6 Qc1 Qe3 Bf1 Re5 Ncb5 Qd3 Qc4 Qc3 Qc5 Ra3+
3br2b/1kb5/br3R2/3N1nR1/N1N2q2/2RNBKnB/RR1Qn1n1/2r1b1b1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 d5 c4 Kd7 f4 Kc7 b4 g5 h5 e5 f5 a4 b6+ Kb7 f6 e3 f7 g3 b5 e4 h6 a3 h7 g2 c5 d3+ Ke1 d2+ Ke2 g4 Nf3 g1B Qc2 d1R Nd4 g3 Qb3 a2 Rh4 g2 Nc6 d4 Qb4 Qf6 Rh3 Ra6 Qd2 Bh2 Ne5 g1B Nd3 Bc7 Na3 Ne7 Nc4 Qf4 Bg2 Bg7 f8R Nbc6 Rf6 Re8 h8R Nf5 R8h5 Nce7 Rg5 Bh8 Rhg3 Bd8 Bh3 Rf1 Bb2 Rc1 c6+ Kb8 b7 Rb6 c7+ Ka7 b8R Ba6 Rb1 a1B Ra8+ Kb7 c8N Bc7 Ba3 Bc3 Bc5 Ba5 Rb2 Bd8 Na7 Bc7 Nc6 Bd8 Qd1 Bc7 Rf3 Bd8 Ncb4 Ng3+ Ke1 e2 Re3 Rd6 b6 Nef5 Kd2 e1N Qc2 Nh5 Ke2 Ng2 Nd5 Rc6 Rf3 e3 Qd2 Qh4 Rf4 Nhg3+ Kf3 e2 Re4 e1B Re3 Bc7 Ra7+ Kb8 b7 Rb6 Nf2 Qh6 Rc3 d3 Be3 Bd8 Nf4 Kc7 b8N+ Kc8 Ra8 Kb7 Nd7 Qh4 Nd5 Qd4 Qc2 d2 Nd3 d1N Qd2 Qe5 Ra3 Nc3 Ra7+ Kc8 N7c5 Nce2 Na4 Qd4 Ra8+ Kb7 Rc8 Rb5 Rcc6 Bac7 Raa2 Rb4 Na3 Qe5 Rc3 Rb6 Nc4 Qf4+
n1R1b3/RK3bbb/2Rn3B/1RQRr1r1/qn1qb3/6NN/1k1b3N/n3N2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kc4 b4 h5 e3+ d3 g5 f5+ Ke5 a5 g6 d5 c3 h3 g7 h2 b6 d4 b5 a4 e4 a3 b7 f3 b6 f4 Bb2 h4 Bh3 a2 Ne2 d2 Qf1 Kb3 c4 d1Q c5 f2 c6 f3 c7 d3 Rg1 h1N Nf4 d2 Nd5 Nh6 g8R Bf5 c8R Ra5 R1g6 Na6 b8N Nc7 b7 Na8 Rgc6 Bh7 Bg2 h3 Bc1 h2 Qb5+ Bb4 Nf4 f1B Na6 f2 b8R Bc4 Nc3 f1B Nce2 Bf7 Qc5 Nf2 Rb5 h1B Nh3 Nf5 Ng3 Nd6 Rg5 Rg8 Rh5 Be8 Kd5 Nd3 e5 Rg5 Be4 Qc2 Bf3 d1N Bf4 Rg8 e6 Kb2 e7 Qa4 Bh6 Be2 Rf5 Rg5 Bg2 B2h5 Be4 Bd7 e8N B5g6 Nf6 Bde8 Ng4 Ne3+ Ke6 Bg2 Rd5 Nc2 Nh2 Qb6 Ke7 Bgf7 Bf3 Qa7+ Kd8 Re5 Qg1 Qd4 Nc5 Bf1 Bh1 Bg2 Qe3 Bge4 Qg5 Qb3 Qh5 Bd2 Qf5 Ndb4 Nd3+ Ka3 Qg5 Qa4 Ne1 Kb2 Qe3 Qc4 Qc5 Qd4 Rc1 a1B R6c7 Ka3 Ra7 Bac3 Rc6 Kb2 Rc8 Na1 Rc6 Nc4 Kc8 Rg5 Kb7 Nd6+ Kb8 Qg1 Rc8 Bg7 Rc4 Qd4 Rc3 Nc4 Kb7 Re5 Rc1 Rg5 Rc6 Nd6+ Kb8 Bh8 Qc3+ Ka2 Rc8 Bhf5 Re5 B8c6 Rbb7 Rd5 Rb5 Bce8 Qc6 Bh7 Rcc5 Nf5 Kb7 Kb2 Qd6 Bg7 R5c6 Bf3 Qc5 Be4 Ree6 Re5 Rd6 Bf6 Rdd8 Bg7 Rd5 Nd6+
1rb1qN2/n1nN2R1/qBRbq3/1R1q4/bN1bq2r/k7/5QR1/2KqNB1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 a5 c4 f5 g4 h5 g5 h3 b6 f3 g6 f2 b7 h4 g7 f4 b5 Kc5 b6 Kb4 c5 d5 c6 f3 c7 h2 e5 a4 e6 a3 e7 d3 e8R h3 Nc3 a2 Nb5 d4 Re6 Nf6 g8R Bd6 Na7 Nd5 Qe1 Rh4 Rg7 Nc6 b8N Qe8 Nd7 Rb8 b7 Kb3 Kd1 d2 Rb1+ Ka4 Rh6 a1B Nf8 Bb2 Rhg6 Ka3 Rg2 Qe6 Kc2 d1B+ Kd2 d3 Qe3 Ne5 Nc6 Ba4 Nb4 Nc6 Qf4 Na7 Qg3 Bcd7 c8N Nc7 Ne7 Bc8 Nf5 Qe8 Qf4 Qe6 Ng3 Qe8 Be2 f1Q Qf6 f2 Nf3 Qg1 Ne1 f1Q Qf3 Qb6 Qf2 Qbc6 Rhg1 Qd5 Nh1 Qde6 R2g6 Qf6 R1g2 Qfe6 Ng3 h1Q Rf6 Qh2 Nh1 Qhe5 Rfg6 h2 Rh6 Ra8 b8N Q5d5 Nbd7 Rb8 Rf6 Bc6 Kd1 d2 Ba6 Qfb5 Kc2 Qb7 Bf1 Qa6 Rh6 Ka4 Rhg6 Bd4 Rb2 d1Q+ Kb1 Qde2 Be3 Ka3 Kc1 Ba4 Rb1 B4e5 Bb6 Bd4 R6g5 Qde4 Rb5 Q2d3 Rb2 Q4d5 Rc2 Q3e4 Ng3 h1Q Rc6 Qhh3 Nh1 Qhb3 R2g5 Qbf3 Rg2 Qd1#
2bN4/1B1rnb2/4Kn2/1NBr4/1B2b1kq/rr2b2N/R1RB1B1n/1NQn1b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 a5 b4 f5 c4 a4 e4 g3 b6 a3 h3 d3 e5 a2 c5 d2 e6 g2 b5 f3 h4+ Kg4 c6 g5 h5 f4 c7 Bc5 e7 Nf6+ Ke5 d5 e8N d4 h6 d3 b7 Ra3 b6 Rh7 Ne2 g1N Bg2 f2 Qe1 d1B Rh2 f1B Nd6 d2 Nb5 f3 Nf4 f2 Nh3 Rd7 h7 Bb3 h8B d1N Bd2 Be3 Bg7 Bg8 Bf8 Bf7 Bc5 Bd3 Bd5 f1B Rf2 Bfg6 Ke6 Nc6 b8B Bde4 b7 Ne7 Bba7 Nf3 b8B Nh2 Bb7 Rb3 Bcb4 Qh8 Bac5 Qh4 Bba7 Bf7+ Ke5 Nc3 Qc1 Nd1 Re2 Kf3 Rg2 g4 Re2 g3 Bab6 Bh5 Ke6 g2 Ba7 g1R Bab6 Bg5 Bf2 Be8 B6c5 Be3 Bde1 Qh5 Rc2 Qh4 Ke5 Bf7 Bed2 Rg2 Ba6 Bcb7 c8N Rg7 Ncd6 Bc8 Nb7 Kg4 Nd8 Rg8 Bb7 Rh8 Ne6 Rh6 Nd8 Rh5+ Ng5 Be8 Ke6 B8g6 Nh3 Rhd5 N1c3 Be8 Rb1 a1R Rbb2 Ra7 Nb1 Raa3 Ra2 Bf7+
1RR5/k1Nbr1bq/b2Nq1BN/1n6/1r1Nb1q1/1brRQ3/3pnB2/1R1K2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 Kd7 g4 Kc7 b4 Kb7 c5 a5 e5 h5 b6 f5 e6 f3 e7 f4 e8N a4 g5 d3 b5 d2+ Kf2 h3 g6 d4 g7 a3 Be2 a2 Bc4 h4 Na3 h2 Qc2 d1B Ke1 h3 Qg6 f2+ Kd2 f1B Bb2 d3 Ke1 d2+ Kf2 f3 Bd4 Rh4 Qd3 Qf6 Qg6 Na6 Qg5 Bd7 Bc3 Ne7 g8N Nd5 Rb1 a1R Nc7 Bb3 Nc2 Nf4 Nh6 Ra3 Bd4 Ne2 Bd3 Re8 Qe3 Qe6 Bg6 Re7 c6+ Kb8 b7 Bg7 Bc5 Rb4 Nd4 Bg2 Rc1 Qg4 Rc3 Qe6 Rd3 Bf1 Bd6 Ka7 b8R Bg2 Rc8 Qg4 Nd5 Nc7 Bg3 Qe6 Qe5 Bf1 Ke3 f2 b6+ Ka6 b7 Nb5 b8R Ka7 c7 Bg2 Nf7 Be4 Nh6 f1Q Bf2 Qg2 Ngf3 Qgg4 Rb1 h1B Ng1 h2 Qg5 Bhg2 Qe5 h1Q Qf4 Nc1 Qf3 Na2 Ke2 Bf1+ Ke3 Qb6 Ng8 Qhh3 Re8 Bc2 Rc3 Qh7 Nh6 Bc4 Rd3 Qbe6 Ke2 Rc3 Rh8 Na3 c8N+ Ka6 Rf8 B2b3 Nd6 Ka7 Nc7 Ba6 Rfd8 Nb5 Rdc8 Rc2 Kd1 Nc1 Bf5 Ne2 Bg6 Be8 Qg3 Bd7 Qe3 Rc3+
qBN3KQ/1kn5/1b4r1/1Rn1nBbn/1R2qRB1/p1n3N1/br2RR2/4B2q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 g5 b4 a5 e4 d5 c4 Kd7 c5 Kc7 b6+ Kb7 h5 a4 e5 f3 Kg3 f2 h6 f4+ Kg2 d3 b5 g3 Kf3 a3 e6 d2 Kg4 g2 Kh5 f3 Kg6 g4 Kf7 d4 h7 g3 e7 d3 e8R Nd7 Re1 Be7 Ra2 Rb8 Rh5 Bg5 Nc3 Ngf6 Na4 Re8 h8R Re6 Ne2 g1B Bh3 f1N Bf5 g2 Rf8 f2 Ng3 Ne8 Re2 Nc7 Kg8 Qe8 Qe1 d1Q Qc3 d2 Qh8 Qc2 Rh4 d1N Rb4 Qd3 Bd2 Nc3 Be1 Qe4 Rad2 Ne5 Rdd4 Nd2 c6+ Ka8 Bg4 f1N b7+ Ka7 Rdc4 Nb3 Nb6 Nc5 Rd4 Qd8 Rdd2 Qdd5 Rf4 Bd4 Ref2 g1Q Rde2 Qgh1 Bf5 Ra8 b8R Bb7 Re8 Rb8 Nc8+ Ka8 b6 Ba6 Bd2 Bc4 Be1 Bb3 Rb5 Ba2 Reb2 Qd8 R2b4 Be3 Ne7 Qdd5 b7+ Ka7 Nc8+ Ka6 Ne2 Ng3 Bg4 Nh5 Ng3 Ncd7 Bf5 Bb6 Bg4 Nc5 Bf5 Na8 c7 Qd8 Ne7 Qdd5 c8B Nc7 Bd7 Ra8 b8B Kb7 Nc8 Ra4 Rbb2 Rb4 Rbe2 Rb2 Rf8 Qa4 Rfb4 Qde4 Bg4 Qa8 R8f4 Ka6 Be8 Kb7 Bg6 Bb3 Bh7 Ba2 Bhf5 Rg6+
b5bN/2q3K1/1r1B3R/4R2B/pR1BB1N1/1rR2r1Q/2nnbq1b/1bR2qk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 a5 e4 h5 c4 d5+ Ke5 f5 g4 h3 g5 f3 b6 f2 b7 h2 g6 h4 b3 d3 g7 a4 Bb2 h3 Qe1 f4 Ne2 d4 Qc3 f3 Nd2 Ra6 Nf4 Be6 Be2 f1R Ra3 f2 Bh5 Nf6 g8B Rb6 Bh7 Na6 b8R Bg8 Ng6 Nb4 Nf3 d2 Qd3 Nc2 b4+ Kc6 b5+ Kc5 Rc3 d1Q Kf5 Qe1 e5 Ne4 e6 Bd6 e7 Qc7 e8R Nd2 Nfe5 Qe2 Qg3 d3 Kf6 Kd4 c5 Rb1 c6 f1Q+ Qf3 Qef2 Ng4 Bg3 Ba1 Rb3 Re5 Bf4 Nf8 Bg3 Be4 Rh7 Kg6 Rf7 Kh6 Rf6+ Ng6 Rf7 Qg2 Rf3 Nh8 Bf4+ Kg6 Bg3 Nh6 Ke3 Ng4+ Ke2 Kh6 Nc4 Bb2 d2 Ba1 d1B Kg6 Qd8 Kg7 Nd2 c7 Ke1 c8R Be2 R8c6 Qc8 Rg1 h1B Rh6 h2 Qh3 Bg2 Bb2 h1B Rb7 Bh2 Rb8 Ra6 b6 Qcc5 b7 Rab6 Rd8 Qc4 b8B Qc8 Rd4 Qc6 Ne3 Qc4 Bd6 Qc7+ Qd7 Bh3 Rb4 Bf5 Ng4 Nd4 Bc6 Bb1 Be4 Bg2 Rcc4 Nc2 Bd4 Bh1 Rg3 Q1g2 Rcc5 Kf1 Rc6 Kg1 Rcc5 Rf4 Rgc3 Qf1 R5c4 Rf3 Rcc5 Ne1 Rc1 Nc2 Rc3 Bg2 Bh7 Bf7 Ne3 Rf4 Qh3 Ba8 Ng4 Rf3 Be4 Bg8+
RBr3b1/2b1r2N/B2nr3/2q3Np/1BqBnk2/1Rr4Q/2B2r2/1qN1n1KN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 b6 a4 b5 h3 c5 d3 c6 d4 c7 f3 g7 h2 b7 f4 b6 d2 Qe1 d1R Bd3 a3 Qf1 a2 Bc4 d3 Bd5 d2 Ba3 Bd6 Nh3 Be6 c8B Nd7 b8B Ra7 b7 Qc7 Bb3 Ne7 g8N Re1 Rg1 h1Q Bc2 d1R Nc3 Nf5 Rg3 Rd3 Nh6 Nc5 Ng5 Bg8 Ne2 Rc3 Qh3 Qe7 Bb2 Bc7 Nc1 Nd6 Nf5 Ra6 Ba7 Rc6 b8B Rh6 Nb3 Re6 Ba6 Re3 Ba3 Qb1 Nc1 Re2+ Kg1 f2+ Kh2 f3 Bb4 Kf4 e5 Nce4 Bd4 Ree3 Kh1 f1R+ Kh2 Rf2+ Kg1 Rh6 e6 Qf8 e7 Re6 Nh4 Qf5 e8N Qc5 Nf6 Re7 Qh1 Nd2 Nge4 Ba5 Bc4 Ra3 Bc7 Rfe2 Nf2 R3e6 Qh3 Ne4 Bb8 Rc8 Nh1 Bc7 Nh7 Rd3 Bc3 f2+ Kg2 Red2 Nf3 Re3 Kh2 f1Q+ Be2 Red3 Nfg5 Rf3 Ba5 Rdd3 Bac3 Rde3 Bb5 Qfc4 Kg1 Rf2 Be1 Ree2 Ra3 Re3 Ra8 Ra3 Ba5 Rc3 Ba6 Qbb6 Rb1 a1N Bd1 Qbb3 Bb4 Nc2 Rb2 Ne1 Bc2 Qa2 Rb3 Qb1
r1B2rR1/R2n1kbb/2qb3B/q1pR3N/BqRn2n1/2K5/3N2nn/1Q1BB3 w - - 0 1 illegal: No possible last move, all moves rejected
k2B1b2/2q3b1/rqr2np1/Rb2Rn2/2N3BR/2Knbb2/4r1N1/B1RQR2B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 c4 Kd7 b4 Kc7 e4 Kb7 h4 f5 h5 a5 e5 d3 b6 g6 h6 a4 h7 a3 e6 g3 e7 f3 e8B a2 b5 f4 c5 f2 Rh5 f3 Re5 d4 Bf7 g2 Qc2 Nc6 Bb2 Qc7 Bd5 Nf6 Na3 Bg4 Qd1 Ra6 Ne2 g1B Bh3 f1Q Nc4 f2 Bh1 Ka8 Nf4 Bf3 Bg4 Ne7 c6 Nf5 Ng2 Rg8 Rc1 a1B h8R Rg7 Bc3 Re7 Rh4 Bb2 Ra1 Re8 Ra5 Ba1 Qe2 Qb1 Qd1 f1B b7+ Ka7 b8B+ Ka8 b6 Be3+ Ke1 Bb2 Bb4 Ba1 Be7 Rc8 Bd8 Qb5 Qe2 d2+ Kd1 Qc5 Kc2 d1R Qd3 Re1 Qd1 d3+ Kb3 Qg7 c7 d2 Ba7 Re2 Kc2 Rb8 c8R Bad4 Rc6 Rc8 Bb8 Qb5 Bd6 Qc7 b7+ Ka7 b8R Qbb6 Rb7+ Ka8 Ba3 Bc3 Bb2 Bcd4 Ba1 Bb2 Qc1 d1N+ Qd2 Nf2 Rcc5 Qb8 Rbe7 Rc6 Re8 Nd3 R8e6 Ba3 Kc3 Q8c7 Qd1 Bac1 Re7 Beh6 R7e6 Bhg7 Re7 Rd2 Re1 Re2 Ree5 Bg5 Rcb5 B5h6 Rb1 Be3 Rc1 Nb4 Rac5 Rea2 Nb2 Bc4 Ra5 Bb5+ Nc4 Nd3 Nf4 Rb2 Ng2 Re2
2r2k2/B1Q2n2/qB2bp1N/6N1/1b1BN3/n1K1N1Bb/1Rb1rRBq/1r4qb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 c4 a5 h4 g5 e4 d3 b4 a4 h5 d4 h6 g3 b6 g2 c5 a3 b5 g4 c6 a2 e5 f3 h7 g3 c7 f2 b7 Bg4 c8N Ba3 b6 Kf8 e6 Nd7 b8B Bb4+ Nc3 Qc7 b7 Nb6 Qc2 Nh6 Nh3 g1R Ba7 g2 b8B Qh2 Rb1 a1Q Bg3 Qa6 Ne7 Rc8 Ng8 Bf5 Rb2 Nc4+ Kd1 d2 Nd5 Na3 Ne3 Be4 Ng5 Bc6 Qc4 Bd7 Ke2 d1B+ Kd3 Bf3 Bd2 Bb7 Bc3 Be4+ Kd2 d3 e7+ Ke8 Qc7 Be6 Be2 Rf1 Bf3 g1Q Bg2 Rb1 Bb6 f1B Ba7 Nf5 Nh6 Nd6 Bb6 Rf8 h8B Bc6 Bhd4 f6 Ba7 Nf7 Bdb6 Rh8 Nhf5 Rh4 Nh6 Bf3 Bc5 Re4 Bcb6 Bd6 Bcd4 Re5 Nef5 Re2+ Kc3 d2 Ne3 d1B Bbc5 Qh5 Bcb6 Bc2 Rh4 Bfd5 Rf4 Qhh2 Rf2 Ba8 Bd5 Bfh3 Bg2 Bc5 Qb8 Kd7 e8N Ke7 Qc7+ Kf8 Nd6 Bf3 Nde4 Bd6 Bf1 Bh1 Bg2 Bb4+
2RN2qN/pR3Rn1/Kqr2qNk/2q1R2B/Rq5q/4Nbb1/3B3Q/1qrn4 w - - 0 1 illegal: No possible last move, all moves rejected
1R3Q1n/N1b5/k3r1rB/2R5/1KpbQbqr/2N3R1/4RnB1/1RbrRb1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 f5 d4 c5 Kd2 Kc7 Kc3 Kb7 h4 g5 d5 a5 b6 f3 e5 f2 b5 g3 d6 g2 d7 f4 e6 a4 h5 a3 e7 a2 e8R g4 h6 g3 h7 f3 Na3 Na6 Qd6 Qg5 d8R Bh6 Re3 Bh3 Qe6 Nb4 Qf5 Ne7 Qe6 Nd3 Rd6 Ng6 Qf5 Qg4 Qg5 Rae8 Re1 Re6 Qe5 Bf4 Ne2 g1R Rc6 g2 Rh2 Rh1 Qd4 g1B Bg2 f1R Qe4 f2 Rb1 Bc7 Bh6 a1B+ Rb2 Rg8 h8R Rg7 Ra8 Nh8 Rg8 Rgg6 Rg7 Kb8 b7 Ka7 b6+ Ka6 b8Q Bf4 Rb1 Rd1 Nb5 f1R Qf8 Nf2 Na7 Rd4 Rc8 Rfd1 b7 Bc7 b8R Bf4 Bf3 Bf1 Bg2 Bc7 Rh3 Bgh2 Re7 Bhe5 Rg3 Bf4 Kc2 c3 Kb3 c4+ Kb4 c2 Nc3 c1B Re2 Rd5 Re1 Rdh5 Re2 R5h4 Re1 Bb6 Rc5 Bbc7 Qd3 Rc6 R7e2 Rce6 Qe4 Bab2 Na2 Bg7 Nc3 Bd4
6kN/nBKb1n2/3nb1N1/2Q2N1B/n1BbN2N/3r1b1b/1pq1rRrB/6R1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 c5 Kf3 h5 Ke4 b5 Ke5 f5 e4 Kf7 d4 h3 a4 h4 g4 c4 g5 h2 d6 h3 a5 b3 a6 c3 d5 b4 d7 f3 a7 f4 d6 f2 Bb5 f1N Qg4 c2 Nc3 f3 Qg3 f2 Qg2 Ng3 Nf3 f1B Bf4 c1R Rg1 h1B Qf2 h2 Qc5 Nf5 Ra2 Bc4 Bg3 Ngh6 g6+ Kg7 Rd2 Qa5 Bf4 Qa2 Rf2 Qc2 Bg3 Bf1 d8N Re1 Nb7 Nc6+ Kd5 Be7 d7 Bf6 e5 Nf7 Nd6 Re2 e6 Bd4 e7 Rg8 Bc4 Bh3 Bf4 b2 Bg3 b1N e8B b3 Nce4 b2 Nh4 Bf3 Ke6 Rb8 a8B Rb3 Bb7 Nfe5 Bf4 Kh8 g7+ Kh7 Bg3 Nc3 Bh5 Na4 Kd5 Na7 d8N Bd7 N8f7 Bfg4 Nh8 h1B Bf4 Nf7 Bh2 Rc8 g8N Bhf3 Ne7 Rd3 Bca6 Rg8 Bc4 Rg5 Neg6 Kg8 Ne8 Bb5 Ng7 Be8 Ke6 N5d6+ Ke7 Be6 Ngf5 Nh6 Kd8 Rg2 Kc7 Nhf7 Ng7 Bb5 Ngf5 Bbd7
B2RR2q/3Rq3/3nQ3/K1b2B2/2r1NpB1/kbq2rB1/2R1rBr1/n4rNr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Kd6 b4 f5 c4 a5 e4 h5 b6 f3 b7 f4 b5 Kc5 e5 Kb4 c5 d5 e6 a4 b6 h3 e7 h2 e8R h4 g5 h3 g6 f2 g7 d3 c6 a3 c7 a2 Bb2 d4 Re2 Nc6 b8B Nge7 g8B Ra4 b7 Be6 c8B Na5 Nc3 Bb3 Bh7 Rg8 Bcf5 Rg2 Qc2 Nc8 Ree1 Qe7 Rad1 a1Q Ba7 Nd6 Be2 f1R Ne4 Rf3 Bc3+ Ka3 b8R Rc4 Rd8 Qb2 Rc1 Qa1 Qb1 Qb2+ Rc2 Qa1 Kd1 Qb2 Bd2 Qc3 Be3 d2 Bf2 Re3 Beg4 Rf3 Ke2 d1R Bg8 Rdd3 Bd5 Rde3+ Kd1 d3 Ba8 d2 Bg3 Ree2 Baf2 Ba2 Qb5 Nb3 Qe5 Na1 Qe6 Bb3 Ng5 Ree4 Re3 Re5 Ke2 d1R Ne4 Rf1 Rd3 Ne8 R3d7 Nd6 Re8 Qa5 Red8 Qc7 Kd2 Qc5 Ne2 Qc8 Rg1 h1R Re8 h2 Rdd8 Rc1 Rd1 Rf1 Ng1 h1Q Re1 Qh2 Re3 Qh8 Rd3 Nb7 R3d7 Nd6 Nh3 Rh1 Ng1 Rf1 Bh3 Bg7 Nc3 Ra4 Bhg4 Ree1 Ne4 Bd4 Rc6 Be3+ Kd3 Rd4+ Kc3 Re2 Rc4 Ka2 Kb4 Kb2 Ka5 Ka3 Rc2 Qc3+ Kb6 Rb4+ Ka6 Bc5 Ka5 Rc4+
2kN2B1/1n3qp1/2n1nr2/b2R2BQ/2r5/4r1B1/bK1Rbbn1/nB1RR1NR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 d5 e4 Kd7 c4 f5 Kc2 d3+ Kc3 g3 h4 f3 e5 f2 b6 d2 b7 g2 h5 f4 c5 f3 b5 d4+ Kc2 a4 h6 d3+ Kb2 a3+ Ka2 Qe7 b6 Nc6 b8B Ra4 b7 Qf7+ Qb3 d1N h7 d2 Bd3 f1N Nc3 f2 Nd5 Na5 Nb4 Nfe3 Bb1 f1R Nc6 Ne7 Nd8 Rc4 Qb5+ Nec6 Bc7 Rf5 b8R Nf2 Rb7 Rg8 h8R d1B R8h2 Ne4 Ra7 Bb7 e6+ Kc8 e7 Rf6 e8R Ng5 Bg3 Be2 Re6 Ba8 Rd7 Nb7 Rd5 Rh8 Kb3 a2 Kb2 Rh3 Re8 Ne6 Re7 Nc2 Bg5 Ne3 Red7 Bd6 Rd1 Bc7 R7d5 Ba5 Re1 Rh8 Red1 Re8 Re1 Na7 c6 Re7 c7 Nc6 Rh4 Re8 Rhd4 Re7 Rd2 Re8 Nf3 g1B Red1 Bf2 Ng1 Re7 Re1 Nb8 Qe8 Ng2 Qh8 Nc6 Qh5 Rc1 Bg6 Rc4 Rad1 a1N Bh7 Ned4 Bg8 Re3 Re5 Kd7 c8B+ Kc7 Bf5 Ne6 Bfh7 Kc8 Red5 Rh4 Be5 Nb8 Rc2+ Nbc5 R5d4 Bd5 Bg3 Nc6 Rcd2 Nb7 Bb1 Ba2 Rd5 Rc4
b1BB3r/1b1NpQ2/2n2N2/R2rNq2/2NrQ1nK/1r1qb2N/4k1rN/2Rr4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Kf6 g4 Ke5 f3 a5 Kf2 d5 c5 h5 c6 d3 g5 Kd4 f4 d2 b6 a4 f5 a3 b7 a2 b5 h3 Kg3 Ke3 f6 h2 g6 d4 f7 d3 c7 Nf6 g7 Ra3 g8N Ng4 b6 Bh6 f8Q Rb3 Qf7 Nc6 b8N Bb7 c8N h4+ Kh3 Qd5 Nd7 Qf5 Ngf6 Rd8 Ne5 Rd5 Qc2 Rd4 Ba3 d1Q Bd6 d2 Ba6 Ba8 Kg2 h3+ Kg3 Qe2 b7 d1R b8N Qd3 Bb4 Rd2 Nb6 Rg2+ Kh4 Rd5 Ne2 Bf4 Rf1 h1R Nd2 h2 N8d7 Bh6 Rac1 a1R Ba5 Ra4 Nf4 Rad4 Nh3 Ke2 Nbc4 e3 Bc8 Bb7 Rf4 Rd1 Bd8 h1B Nf1+ Ke1 Qc3+ Rd2 Rf2 Ba8 Ng5 e2 Ne6 Rc5 Ng5 Nb4 Kh5 Bhb7 Rg2 Nc6 Qa5 Rcd5 Qa2 Qe3 Qb1 Qef3 Qe4 Qd3 Nh2 Rdb2 Nhf3+ Kf1 Rh2 e1R Rhc2 Re3 Nh2+ Ke1 Ra1 Ra2 Rcc1 Rg2 Ra6 Ke2 Ra5 Qf4 Nh3 Bg5 Nf2 Qf5 Qf4 Reg3 Qe4+ Be3+ Kh4 Nh6 Nh3 Rg8 Ncb6 Rh8 Nbc4 Ng4+
Kr1Q4/1p1qR1R1/3Q1bNB/1B2r3/b1n1kr1q/3rnRr1/2N1R1R1/2R2qr1 w - - 0 1 illegal: No possible last move, all moves rejected
b2NNKN1/1b1r4/1B5B/1k1Bn2r/1bq1p3/R2rRBQr/q5Nr/1bn1N3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 f5 h3 g5 h4 g6 h2 b6 Kc6 g7 h3 c5 d3 Kc3 a4 b7 a3 b5+ Kc7 Kb4 e3 b6+ Kc6 f6 d2 f7 e2 Bg2 e1R Nc3 a2 Qb3 d1B Bf3 Re2 Bh6 Qh4+ Ne4 Nd7 b8B d4 b7 d3 Ba7 d2 Bb6 Ne7 g8N Nf5 Qc3 Bd6 f8N Bc2 Ng6 d1R Nf4 Nd4 Ng2 Ra3 Nef6+ Be4 Qe1 Rad3 Qg3 Nb3 Ne8 R1d2 Re1 a1Q Kc4 Rf2 Re3 Qa2 Kb4 Nc1 b8N+ Kd5 Kb5 Bb7 c6 Bb4 c7 Qf4 c8B Qf7 Bf4 Rh5 Nc6 Rd1 Nd8 Rc2 Ne2 R1d2 Re1 h1R Bh6 h2 Nd4 Rcc3 R1e2 Rhd1 Rf2 h1B Nc2 Rb3 Nce1 Rbc3 Nh4 Re2 Rf1 Rh2 Nhg2 Ra3 Ba5 Ba8 Bb7+ Kd4 Bc7 Bh7 Kc6 Kc4 Ba5 Be4+ Kc7 Kb5 Bb6 Qfb3 Bd5 Qc4+ Bc5 Bg6 Kd6 Qe4 Bg4 Qb2 Rf2 R2h3 Nf4 R3d2 Ke7 Ra7 Bb7 Qc4 Ra3 Bb1 Re2 Qba2 Ree3 Rdh2 Be2 Bd5 Nfg2 e4 Bf3 Ne5 Kf8 Rd3 Rc3 Ra6 Ra3 Rd6 Bb6 Bc6 Bc8 Bd5 Be6 Bdb7 Bd5 Rd7+
3n3q/1bb5/3R2B1/1pqb4/RR1NN1qB/RN1rR3/Nq2qnQ1/1b1rk2K w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kf6 a4 Kf5 g4+ Ke4 Kg2 c5 e3 h5 a5 b5 g5 f5 a6 b3 d6 f3+ Kh2 c4 d5 c3 d7 f2 a7 b2 d6 h3 g6 f4 g7 f3 Bc4 f1Q Qa4 c2 Ne2 f2 Qb3 Kf3 Nbc3 b1B e4 h4 e5 Qd1 e6 f1Q e7 Kf2 e8R Bb7 Qa3 Qf6 d8N Nc6 d7 Bd6+ Re5 Nh6 Ne6 Rad8 a8R Ke1 g8N Nf7 Bg5 c1Q Ra4 Bc7 Qb2 Qe7 R1a3 Qc5 Bf6 Ng5 Na2 Qdd4 Qc2 Qcb2 Bd3 Qdb4 Rg1 Qf4+ Rg3 Qg4 Ree4 Qff3 Reb4 Qff2+ Kh1 h2 Nec1 Qfe3 Qg2 Qee2 Nb3 Rh7 Nf4 Rh6 Be7 Rd6 Bg6 Rd1 Ne6 Nh3 Qf3 Nf2+ Kg2 h1B+ Kg1 h3 Nf6 Ra8 d8R Ra6 Rd6 Nd8 Rd7 Rad6 Qc6 R6d5 Rd6 R5d3 Kh2 Bg2 Re3 Bh1 Qf3 Bg2 Kg1 Bh1+ Qg3 Bhd5 Ne4 h2+ Kg2 Qh5 Qh3 Qhh8 Ned4 h1Q+ Kg3 Qf3+ Kh2 Qg4 Bh4 Bdc6 Qg2 Bd5 Ng3 Nh3 Kh1 Qf3 Ne4+ Qg3 Bg5 Qg4 Bh4+ Nf2+
3Qr1RQ/2r1b2b/q4R2/rb2q1Nn/bkrpQ1B1/4NnQ1/Q5Q1/2B2q1K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Kd6 g4 Kc5 Kg2 f5 e4 d5 b3 a5 b6 h5 b7 a4 e5 d3 g5 f3+ Kh2 d4 g6 f2 e6 f4 g7 d2 e7 a3 e8Q f3 Qe3 h3 Bb2 a2 Bc1 h4 Qe4 Nf6 g8Q Nbd7 b8Q Be7 Na3 Ne5 Qdc2 d1B Be2 f1Q Qg2 f2 Nf3 Ra5 Ng5 Qe8 Bg4 Bf5 Qd8 Bh7 Rg1 Nf3+ Kh1 Kb4 c5 h2 c6 Nh5 c7 Qeb5 c8Q Re8 Qb1 Qe5 Nc4 Bc2 Ne3 Qa6 Nh3 f1B Ng5 Bb5 Qb2 Bd1 Rb1 a1R Qa2 Ra4 Rb2 Ra5 Rf2 Rb1 Qcc7 Rb2 Qcc8 Rc2 Qb8 Rc4 Qbc7 Kc3 b4 Bda4 Qcb8 Bd7 b5 Kb4 b6 Bdb5 b7 Rc7 Qa8 Rc4 Qg3 Rc7 Kg2 h1R b8Q Rh3 Qh2 Rg3+ Kh1 h3 Qg2 h2 Rff1 Nh4 Rf6 Nf3 Qh3 Rg2 Qg3 Rgc2 Qa8d5 R2c4 Qg8 Ne1 Qbb7 Nf3 Qh8 Ne1 Qeg2 Nf3 Qe4 Qee6 Nf7 Qa7 Qgd2+ Kc5 Qge1 Ra6 Bh3 Ne5 Rg8 Nf3 Ng5 Ra5 Bg4 Qaa6 Kg2 Qe5 Qg3 h1Q+ Kf2 Qe1+ Kg2 Qe2+ Kh1 Qf2 Qe2 Kb4 Qf1 Qe2 Qfg2 Qf1+
1kB5/1N1n1b2/6R1/N1NRN2b/p1BQ1q2/q1b1B1n1/2K1rnq1/Bn2r1bN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 h4 f5 e4 d5 b4 Kd7 c4 Kc7 e5 a5 h5 f3 h6 f2 h7 a4 e6 g3 c5 d3 e7 g4 e8B g2 c6 g3 Nc3 f4 Nb1 d4 Rh6 f3 Nc3 Nf6 Nce2 Nh5 Rg6 Qd6 Bd7 Bg7 Ra3 Bb7 Bc8 Nd7 b6+ Kb8 b5 Re8 h8B Re4 Rc3 Qa3 Rc5 Ba6 b7 Re7 Nf4 Re1 Nge2 g1B Ne6 g2 Rd5 Ng3 Nc5 Ra7 Nf4 Be5 Nh3 Bf6 Be2 f1Q Nf2 Be5 Nh1 f2 Bg7 Bf6 Bh6 Be5 Bb2 Bg7 Kc1 d2+ Kc2 Ra8 Qa1 d1N Be3 Nc3 Qd1 Nb1 Bc4 Qe2+ Qd2 f1Q Ba1 Qf4 c7+ Ka7 b8N Bb7 Re5 Bd5 Reg5 Bf7 Rd5 Qef2 Nb3 Re2 Na6 Rb8 Nac5 d3+ Kd1 Bh8 Na5 Bc3 b6+ Ka8 Qb2 d2 b7+ Ka7 Kc2 d1B+ Kd3 Ra8 b8N Re1 Qd2 Bh5 Kc2 Qf1 Qd4 Q1f3 Nba6 Q3g4 Nb4 Qgg5 B8a6 Re8 c8N+ Kb8 Nd6 Qgg4 Bc8 Re5 Bd2 R5e2 Nbc6+ Ka8 Nd3 Qgf3 Nc1 Bh2 Ne5 g1N Ncb3 Qg2 Nc5 Kb8 Ndb7 Nh3 Kd3 Bg1 Be3 Nd2 Kc2 Nf2 Rb6 Rf1 Re6 Rfe1 Rg6 Nb1+
nRKb2b1/1B3BNN/3Q4/2rp2n1/1bNqn2n/1qB1rq1q/k6B/B2NR3 w - - 0 1 illegal: No possible last move
2R3K1/RbN1BR2/6Bq/1pB1BR2/2N2qkr/nQqn1q1b/2nr2n1/bR6 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 a4 h5 d4 b5 g4 c5 e4 h3 a5 h2 a6 c4 d6 h4 a7 c3 d5 b3 d7 b2 Ke6 c2 Kf7 h3 e5 Bh6 d6 Bg7 e6 Nf6 e7 Rh4 e8R Qc7 Rf8 Qc3 d8B Bb7 d7 Nc6 Ne2 Nd4 Bb6 Rd8 a8R Nh5 Nd2 b1N Nc4 Na3 Bb2 c1N Ra7 f3 Rb1 f4 Qb3 f2 Kg8 f3 Bc5 Ndc2 Nd4 Nf4 Bd3 f1Q Bg6 f2 Rg1 h1Q Ne6+ Kh6 Rg3 h2 Nc7 Kg5 Rf3 Ng2 Rf7 Nd3 Ba1 Bf6 Bb2 Kf4 g5 Kg4 Ba1 Qc1 Bb2 f1B Ba1 Rb8 d8B Qf4 Bde7 Rd8 Bb2 Nc1 Ba1 Rd2 Bb2 Bg7 Rf5 Nd3 R8f7 Qb4 Be5 Qa5 Be5d6 Ba1 Be5 Qc3 Bh7 Nge1 g6 Qhf3 g7 h1Q Bg6 Ng2 Kf8 Q4g3 g8R Qgf4 Kg7 Qhh2 Rc8 Qh6+ Kg8 Q2f4 Qa4 Nge3 Qb4 Bh3 Qb3 Ng2
2q2RN1/5q1N/b1N1kb1p/BB1n2q1/1n3Q2/Nr3R1R/1R2bK1b/nnR3r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 b4 d5 g4 f5 c4 a5 e5 h3 c5 a4 c6 h2 c7 h6 e6 a3 b6 f3 b5 f2+ Ke2 f4 b7 f3+ Kd2 d3 Ke3 d4+ Kf4 d2 Kg3 d3 b6 a2 g5 Ra3 g6 Nc6 b8N Nf6 b7 Rb3 g7 Nd5 g8R Ncb4 Be2 f1N+ Kf2 Nfe3 Rg6 Rg8 Nh3 Nec2 Rf6 Rg1 Qf1 d1B Na3 d2 Bb5 Be2 Ng5 d1Q Bd2 Qc1 Rb1 a1B Rb2 Bg7 Rf5 Bf6 Nh7 Qh8 Bc3 Qg5 Nc6+ Kd6 b8N Ba6 e7 Ke6 Nd7 Qc8 Bd2 Be5 Ndf6 Bf4 Ng8 Bd6 Rb1 Bf6 Rb2 Na1 e8R+ Ne7 Rf8 Ned5 Be3 Bf4 Bb6 B4e5 Ke1 Bf4 Ba5 Bd6 Rf4 f2+ Kd2 Bde5 Qc1 f1N+ Ke1 Nd2+ Kf2 Nb1 Rf3 Bd6 Qf4 Rc1 Rg1 h1Q Rgg3 Qhh5 Rh3 Bde5 Nc2 Qf7 Na3 Qb8 c8R Rg1 Na7 Qbb7 Rc1 Qc8 Nc6 Bc7 Qh4 Bh2 Qc4 Qfb7 Qf4 Qf7
1RbB2kN/qr5q/1Rr1pq1n/3B1rB1/Br2Q1nn/b2R3N/4nBRK/8 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 g4 Kf7 f4 h5 Kf2 d5 Kg2 a5 b4 a4 c4 e6 c5 d3 b6 d2 g5 e3 f5 d4 g6+ Kg7 b5 a3 b7 e2 b6 a2 Qe1 d1N Nd2 d3 Rb1 a1Q Ne4 d2 Nd6 Nf2 Nf7 d1R Rh3 Ra7 Rd3 Nc6 b8B Qdf6 b7 Nd4 Rb6 h3+ Kg3 h2 Bc7 h1R b8R Qa2 Bd8 Rb7 Bg2 Qa7 Bd5 h4+ Kg2 Rh7 Nh8 h3+ Kg3 h2 c6 Ba3 c7 Rh4 Bd2 Bd7 c8B Rc1 Be3 Rc2 Qb4 e1N Qa4 Be8 Bd7 Nef3 Qc4 Kf8 Ba4 Bd7 Kg2 Ne2 g7+ Ke8 Qd4 Rc6 Qg4 Rh5 Qe4 Bc8 Bh6 Qa1 f6 Rf5 Bc7 Qe5 f7+ Ke7 Be3 Qf6 f8B+ Ke8 Ng6 Kf7 Bd8 Qc3 Bfc5 Qf6 Nh3 Re1 Ng1 Rb1 Bd2 Rb4 Bce3 Ng4 Bf2 Ne3+ Kh3 Nf4+ Kg3 h1Q Bc1 Qh8 Nh3 Nh6 g8R Nh4 Kh2 Qh7 Bd2 Ne2 Rg7+ Ke8 Nh8 Kf8 Rg2 Neg4+ Kh1 Nc1 Bg5 Kg8 Kg1 Ne2+ Kh1 Ne3 Kh2 Neg4+
2q5/nN1q1brn/q1p1NNb1/3Q2n1/bN2Bb2/q2R3R/2B1BN1B/K1k4r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 g4 Ke7 b4 Kf6 d4 Kg5 Kd2 f5 Kc3 a5 Kb2 h5 e4 h3 d5 h2 b6 c3+ Ka2 a4 e5 h4 d6 h3 e6 a3 b5 c2 d7 Bd6 b7 Nc6 b8N Nf6 b6 Ra7 b7 Nh7 Bb2 c1Q e7 f3 e8B Kf4 g5 Ke3 g6 f2 g7 f4 g8B f3 Nd2 Bf4 Ba6 f1N Bd3 f2 Bgf7 Ng3 Be4 f1B Bd3 Ne4 Ngf3 Neg5 Be4 Bb5 Bc4 Ba4 B8g6 Qc3 Kb1 Qb3 Na6 Qe7 d8N Bf5 b8N Qd7 Be2 a2+ Kc1 Rb7 Nd4 Na7 N4e6 c6 Be5 Qc8 Bd6 Rg7 Nb7 Qd7 Rb1 a1Q Nb4 Qc8 Nd7 Qd4 Bgh5 Bg6 Nf6 Qdd5 Bc7 Qdd7 Bhf3 Bf7 Bc2 Bg6 Nde4 Bf7 Re1 h1Q Nf2 h2 Qd5 Qf1 Rd1 h1B Bfe4 Bf3 Rb2 B3h5 Kb1 Bhg6 Bb8 Qg2 Ka1 Qf1 Bb5 Qfc4 Rd3+ Ke2 Rh3 Qcd3 Ra2 Kd2 Ra3 Kc1 Ba6 Qb5 Be5 Qa5 Be2 Qa6 Bc7 Nf8 Rd3 Rh1 Bd6 Nfh7 Be5 Bd2 Bh2 Bf4 Rh3 Qbc4 Rae3 Qb3 Rd3 Qa3+
7q/3N1QBp/Rq1NK1r1/n2B3b/qbBRB3/r5r1/1b1q2Q1/kn1BrB2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 g4 Ke6 f4 Kd5 a4 e5 a5 b5 f5 d3 Ke3 Kc4 a6 d5 g6 b3 f6 b4 a7 d4+ Kd2 b2 c3 b3 g5 Bg7 f7 Ne7 f8Q Nd5 Qf4 Nc6 Nf3 Rg8 Rh4 Na5 Qf7 Bg4 Qe2 Bh5 Qg2 Bf6 g7 e3+ Kd1 e4 g6 e2+ Kd2 e1R Ne5+ Kb5 c4+ Kb4 c5 Nc3 Na3 b1Q c6 b2 Nac4 Kb3 c7 Qa2 c8B b1Q+ Bb2 Qa4 Qg1 Re3 Qg5 Rg3 Nd7 Qb6 Ra2 Qa1 Bb7 Be5 Bd5 Bf6 Qg4 Be5 Qh3 Bf6 Qg2 Nb1+ Ke1 d2+ Kf2 d1Q Nd6+ Kc2 Ra3 d3+ Bd4 Rgd8 g8B d2 g7 Re8 Bdc4 Re6 Bce2 Qab2 Bf3 Be5 Ke3 Reg6 Rg4 Bf6 Kf4 e3 Kf5 e2 Ke6 e1B Bc3 Kc1 Rd4 Qdc2 B3e2 d1R Ra2 Qd2 Bg4 Rf8 a8B Rb8 Be4 Ra8 Rd5 Ra7 Be5 Qa1 Rd4 Qac3 Ra3 Kb2 Bge2 Rc1 Bd1 Qc8 Rc3 Ka1 Rc6 Qbb5 Ra6 Qb6 Qe7 Qa8 Bf7 Qh8 g8B Qd3 Qe8 Bc3 Qf8 Qd2 Qe8 Be7+ Bf6 Bb2 Qf8 R6g4 Bg7 Rg6+ Kf5 Rac7 Nb5 Qb3 Bg4 R7c3 B7c4 Qb4 Bgd5 Qb3 Qf7 Bb4 Nd6 Re1 Bd1 Qa4 Ke5 Ra3 Kf5 R6g4 Ke6 Rg6+
2k3n1/1bNb2Qr/2qKN1n1/2r1B3/NrrR4/r2bpRb1/3N1RRR/2r2B2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 f5 h3 g5 h4 g6 h2 b6 d3 Ke3 d4+ Kd2 h3 b5 a4 c5 a3 b7 a2 b6 Ra5 f6 Rh4 f7 Qf6 g7 Nc6 b8R Nce7 b7 Qc6 Nf3 Ng6 Nc3 Bd6 f8N+ Kc7 Bb2 Bd7 Rc1 a1R Rc2 R1a3 Rd8 Rb5 b8R Rb4 Qa1 Rf4 Na4 e3+ Kc1 e2 Kd2 Rc4 Rb3 e1R Rbc3 e4 Ne6+ Kb7 Rb3+ Rb4 Bc3 Rc1 Bb2 Nh6 g8R Bb8 Rgf8 Ng8 Rg1 h1B Rg2 h2 Rf7 Qc8 Rh7 Be5 c6+ Kb8 c7+ Kb7 Rc6 Rc5 Rh4 Qa8 c8N Rg4 Rh8 Bg3 Ncb6 Qc8 Rd6 Qc6 Na8 Rh4 Nac7 Rf4 Kd1 d2 Ke2 d1R Rf8 d3+ Ke3 d2 Be5 Rdc1 Rd4 d1B Nd2 Bc2 Rf6 Rg4 Rff2 Bd3 Rh3 Rh4 Rb2 R1c4 Rc2 Rh7 Ra2 Bh4 Rhf3 Kc8 Qb2 N6e7 Kf4 e3 Qc3 Ng6+ Kg4 Rb2 Bf6 Qd5 Ra1 Kb8 Be2 Kc8 Rdf4 Rab3 Rgg1 Bb5 Rfg3 Bhe4 R1g2 h1R Rgf3 Rh2 Rh1 Qb7 Qe5 Bec6 Rd4 Ra3 Bh8 Rbb4 Qf6 N6e7 Kf4 Bd7 Qh6 Bbc6 Qg6 Bd5 Ke5 B5c6+ Kd6 Bg3+ Be5 R2h3 Rhf1 Rh1 Qg7 Ng6 Rfg1 Qb5 Rh2 Bb7 Rgg2 Rhc1 Bf1 Qc6#
R3BnN1/bBr3N1/3p3n/BNnBr1q1/b2b3R/1Q1n3N/4kBnK/b6n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Ke6 b4 Kf5 c4 Ke4 h4 f5 c5 a5 b6 g5 b5 g3 c6 d3 h5 a4 b7 d2 h6 Ke3 b6 f3+ Kh3 f4 c7 a3 h7 a2 Qe1 f2 Bb2 d1N Bg2 f1N Bf6 g4+ Kh4 d6 Na3 f3 Nb5 f2 Bd5 g2 Qb4 g3 Nh3 Nd7 b8B g1B b7 Nb2 Qb3+ Nd3 Ba7+ Nc5 b8N g2 Be7 Ng3 Nc6 f1N Ncd4 Bd7 c8B Nh6 Ne6 Bg7 Bcb7 Re8 h8N Bd4 Nf7 Rc8 Ng7 Rc7 Bb6 Bf2 Ba5 g1N Bf6 Re5 Rh2 Ng8 Nh6 Bc6 Kg4 Nh1 Bh4 Nf3 Bg3 Ng5 Kh4 Nf6 Ng8 Nfd7 Kg4 Nf7 Bh4 Be1 Bg3 Bec3 Bf2+ Kd2 e4 Nh6+ Kf3 Nf8 Kg2 Ke2 Kg1 Bb4 Kg2 Ne3+ Kg1 Rh5 e5 Ng2 e6 Re5 e7 Ba3 e8B Qg5 Na7 Ba4 Nb5 Ng3 Rh1 Bc1 Kh2 Bce3 Rhc1 Nh1 Rc4 Bb2 Rh4 Bbd4 Rc1 a1B Rc4 Na6 Rc6 Nac5 Ra6 Ncd7 Ra8 Ba7 Nf5 Bed4 Ng7 N7c5
3n4/R1BbNK1n/B3R3/2k1pR2/3nqr1Q/5Nnn/nn1rnR1B/2bB2B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 Ke7 c4 Kd6 f5 h3 g5 h4 g6 a4 f6 a3 g7 a2 b6 e3+ Kd3 e2 Ke4 e1N Kf5 h2 Kg6 h3 b7 d3 b5 d2 f7 Nc6 b8R Kc5 b6 d5 b7 d4 Nc3 d3 Bg2 Qd5 Qf3 d1N Qh5 d2 Bf3 Nf6 g8R Bd7 Qh4 Ra4 Re8 Nf2 b8B d1N Bc7 Bh6 Rgf8 Ned3 Bf4 Nc1 Re6 Nb2 Bd1 Nh7 Nf3 Nd8 Rf1 h1N Bh2 Bg5 Kg7 Qe4 Nd5 Ng3 Ne7 Rb4 Nd2 Nge2 Nf3 Nh1 Rf2 Nhg3 Re8 Ra4 f8B Bd2 Rf6 Be3 Rf5 Bd2 Rb1 a1N Kg6 Nc2 Ra1 Rb4 Ra7 Ncd4 Bh6 Ra4 Be3 Na2 Kg7 Bc1 Kg6 Kb4 c5 Kb5 c6 Kc5 Bf4 Rb4 Bg1 h2 Kg7 h1N Kg6 Nh5 Bfh2 Nhf4+ Kg7 Nh3 Kg6 N8e6 Kf7 Nhg3 Ng8 Ng7 Re6 Rc4 Ne7 Rd8 Ba5 Rb4 c7 Rc4 c8B Rb4 Ref6 Nge6 Bb7 Re8 Ba6 Nd8+ Kg6 Rc4 Bc7 Rf8 Kg7 Rc2 Re6 Rd2 Rg5 Rf4 Rf5 N8c6 Kf7 Nd8+
r1Q1n3/2B1Nr1q/Q2Kb3/bQ2rR2/1RQNqnq1/8/pqQ1p1k1/1B1Q1q2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kg6 b4 h5 f4 a5 c4 d5 c5 e5 g5 Kf5 c6 Kg4 c7 Kg3 g6 h3 f5 h2 f6 h4 g7 d3+ Ke3 d4+ Kd2 h3 f7 a4 b6 e3+ Ke1 d2+ Ke2 e4 b5 a3 b7 a2 b6 Ne7 g8Q+ Ng6 Nc3 Nd7 b8Q Qf6 b7 Bb4 f8Q Ba5 Nd5 Rh7 Qa7 Rf7 b8Q Qe5 Qfc5 Nf6 Qa6 Be6 c8Q Ne8 Qbb3 Qb8 Qbc4 Qb2 Qdc2 d1R Ne7 Rd3 Bd2 Rb3 Rb1 Rb5 Nf3 d3+ Ke1 e2 Nd4 Rh7 Bb4 Rf7 Kd2 Kf2 Rg1 h1Q Rg5 h2 Rf5+ Nf4 Qg4 Qg1 Qcb6 Re5 Qbb5 h1Q Bh3 Qf1 Bg2 Kg1 Ke3 d2 Bd6 d1Q Bc7 e1Q+ Qge2 Qa1 Rb4 Qh7 Bh3 Qeh4 Qed2 Qdh5 Qdd1 Qb2 Bg4 Q5g6 Be2 Qhg4 Bd3 Qh1 Q2c3 Qhh7 Bb1 Kg2 Qcc2+ Ne2 Kd2 e3+ Kd3 Qhh5 Qcd5+ Qe4+ Kc4 Qhg4 Kc5 Qh7 Kc6 Kg3 Kc5 Nf4 Kc6 e2 Kc5 Nf6 Kd6 Kg2 Qdc4 Ne8+
RBnR2b1/q2nq3/B1nr3R/b2B4/4NR1K/2n1pRN1/pqkB1r2/Q6n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kf6 f4 h5 Kf2 d5 c4 e5 g5+ Kf5 g6 a5 c5 a4 c6 e3+ Kg2 Ke4 f5 h3+ Kg3 h4+ Kg4 d3 c7 d4 g7 e2 b6 e1N b5 h2 b7 h3 b6 a3 Bg2+ Nf3 Qc2 a2 Qb2 d2 Qc2+ d3 Qd1 Ne7 g8B Nbc6 b8R Be6 c8R Ra6 Rc7 Nc8 b7 Bb4 Bh7 Rf8 Qf1 d1N Rf7 d2 Ra8 Nc3 b8B d1Q Ne2 Kd3 Ng3+ Kc2 Nd2 Ba5 Nde4 Q1d7 Bd2 Q8e7 Rd1 Qa7 Qg1 Bd5 f6 Rb6 Bf1 Bb3 Bg8 Bc4 Nc5 e4 Be2 e3 Nce4 Nfe5+ Kh4 Bb3 Ba6 Nd7 Rf1 Be6 Rf4 Bd5 Qa1 Bc4 Rd1 h1Q Rh7 h2 Bd5 Qg2 Rh6 h1N Rdf1 Bb3 R1f3 Qe2 Kh3 Qb5 f7 Bc4 Kg4 Qb2 Kh3 Nd4 Kg4 Rd6 Kh5 Nc6 Kg4 Rh8 f8R Bb3 Rd8 Bc4 Rhf6 Rh2 Rh6 Re2 Rff6 Rf2 Kh4 Be2 Rf4 Bg4 Rf3 Be6 Rf4 Bg8 Rf3 Qe8 R6f4 Qe7+
1B1b3N/2Rr1RNq/nN1n2rp/BB4B1/1p6/1qn2bQ1/1Nn4K/k1N2nr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 Kd6 a4 f5 e4 b5 g4 c5 Kg2 b3 g5 h3+ Kh2 b4 a5 c4 g6 f3 g7 f2 a6 c3 a7 b2 Nd2 b1N Bc4 f4 Bb5 c2 Qg4 f3 Ne2 Na6 Rf1 Nh6 g8N Nf5 Ne7 Bb7 Ng6 Rg8 Nh8 Be7 Ra4 Rb8 a8N Rg6 Nb6 Nc3 Ra2 Qg8 e5+ Kc7 e6 Kd6 Ra1 Bd8 e7 h6 Bb2 Qh7 Rac1 Ba8 Qg1 Rb7 Qg2 Rd7 e8N+ Ke7 d6+ Ke6 d5+ Ke5 Ng7 Bc6 Ng1 Kd4 Ndc4 Kd3 Qg3 Kd4 Rce1 c1Q Re7 Qc2 Ne2+ Kd3 Bc1 Qb3 Bf4 Kc2 Nc1 Kb1 Nb2 Ka1 Rf7 Bb7 Rd1 Ba8 Rd4 Bb7 Rc4 Ba8 Rc7 f1N+ Kh1 N1e3 Kh2 f2 Be5 Re7 d7 Nc2 d6 Bf3 Bf4 Re5 Bg5 Rd5 Bf4 Bg5 d8B f1N+ Kg1 Bh4 d7 Nd6 Bdg5 Rd1 d8B h2+ Kf2 h1R Be5 Rh2+ Kg1 Re2 Bef4 Re7 Be5 Rd7 Bef4 Nfe3+ Kh2 Rg1 Rb7 Nc8 Bb8 Nd6 Rc7 Nf1+ Kh3 Nd1 N6a4 Re7 Rc8 Na3 Be3 Nd2 Ba5 Nc3 Rc7 Nf1 Nb6 Rd7 Bd2 Bd8 Bg5 Nd2 Kh2 Nc2 Qe1 Nc5 Qh4 Na6 Qg3 Nf1+
4q1b1/3n1nbq/B2k1p1r/2R2B1B/bN1p1RBb/1R4Q1/KR2N3/b1r1B1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 h4 g5 a4 d5 c4 b5 Kc2 d3+ Kb3 g3 e4 g4 h5 d4 e6 d2 a5 f6 a6 g2 c5 g3 a7 Rh6 c6 Qd7 e5 Ba6 c7 Rh7 c8B Rh6 Na3 Bg7 Ne2 g1B Rb1 g2 Nc2 Be3 Rb2 g1B Rh4 Bf4 Ka2 Qe8 Qe1 d1B Bd2 Nd7 Qg3 Bf2 Be1 Bd2 Rf4 Bc3 Rb3 Rb8 a8B Ba1 Be4 Rb6 Rb2 Rc6 Bf5 Rc5 Bg4 Bb7 Rb3 Bd5 Ba6 Rc7 Bfh3 Bc4 Bf5 Rc6 Bhg4 Rc7 Qh3 Bh4 Qg3 Bd5 Na3 Rc1 Nc2 Kd8 e7+ Kc7 e6 Kd6 Bh3 Rh7 Bhg4 Nh6 Qg1 Nf7 Qg3 Qb8 e8R Rh6 Rh8 Qe8 e7 Be6 Ne3 Bc2 Nd5 Bd1 Rb2 Ba4 Rf8 Nfe5 Rb3 Bg8 Rb2 Nf7 Rb3 Qa8 Rc8 Qb8 Rc5 Qe8 Rb2 b3+ Ka3 Qa8 e8B Qd8 Nb4 Qe7 Rbc2 b2 Ka2 Qe3 R2c3 Qg1 Rb3 b1Q+ Ka3 Qe4 Ka2 Rg6 h6 Qa8 h7 Rh6 Nd3 b4 h8R Qd8 Rb2 b3+ Ka3 Ng5 Beh5 Nf7 Nb4 Qc8 Rb1 b2 Ka2 Bh7 Re8 Bg8 Re3 Qe8 Rb3 Rc4 Rd1 Rc1 Rd2 b1Q+ Ka3 Qbe4 Rdb2 Qc2 Ka2 Qd3 Be6 Qg6 Bef5 Qh7
krB1Nn2/2rnK2p/N3R1n1/1n6/3Q1p2/N1NRq1qb/Rb1R3b/BN1n4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 a5 Kc4 d3 Kd5 f3 b4 a4 g4 h3 e4 f4 c4 f2 b6 a3 b5 a2 e5 h2 e6 d2 c5 Ne7+ Kd6 Ra7 g5 Rc7 c6 Ng6+ e7 Bg7 b7 Bd4 b6 Nf8 Bd3 f1Q g6 Qe2 g7 Qe3 g8R Qg3 Qa4 d1N Bf5 Nc3 Ne2 Bg1 Rg6 Qe3 Qd4 Nb5+ Kc5 d5 Re6 Rg8 Nec3 Rh8 Bb2 Nbd7+ Kb4 Qg3 b8R Rg8 b7 Qe3 Qe5 d4 Qe4 d3 Qd4 d2 Bh3 Nb6 Kc5 d1N Ra8 Qg3 b8N Nbd7+ Kd5 Rh8 Na6 Qe3 Na3 Qg3 Rc1 a1B Rc2 Rg8 Ncb1 Rh8 Bc3 Bb2 Rd2 Be3 Rg1 h1N Rf1 Bg1 Rf3 Bh2 Rfd3 Nhf2 Bf5 Ng4 Ra7 Rb7 c7 Nge5 Ra8 Neg6 Bg4 Kf7 e8N Qe3 Bf5 Qh4 Kc6 Qhg3 Bg4 Bc1 Ba1 Bb2 Kd5 Nf6+ Kc5 Bd7 c8N Rc7+ Rc6 Bf5 Ncd6+ Ke7 Ne4 N6d7+ Kd5 Rg8 Nec3 Rh8 Ra7 Kd8 Re6 Kc8 Ra8+ Kb7 Bh3 Na7 Kd6 Rg8 Bf1 Bh3 Be2 Nh8 Ke7 Nb5 Bg4 Bg2 Nb4 Bh3 Ra4 Kb8 Na6+ Ka8 Nc2 Rg6 Ra2 Rg8 Nca3 Nhg6+ Kf7 Qh4 Nd6 Nf6+ Re7 Ne6 Bf5 Rd8 Ne8 Nef8 Bg4 Rb8 Bc8 N6d7 Re4 Qhg3 Re6 Nh4 Ke7 Nhg6+
3Rr3/4kp2/rBR2bBr/R1q1B3/b1NN1qKQ/2R1bB2/pbn2b1B/5n2 w - - 0 1 illegal: No possible last move, all moves rejected
2kBK2N/1q3NbB/1nN2n2/3r2br/1Q3BR1/q1p3nR/p2nq2B/3N2Bb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 e4 c5 g4 h3 b4 a4 d4 a3 b6 h2 b5 a2 b7 c3 g5 c4 g6 f3 d5 f4 d6 c2 g7 f2 b6 h4 Nc3 f3 Nge2 h3 Qd2 Rh4 Nf4 Ne7 Kf6 Qe8 g8N Qh5 e5 Nf5 Ng6 Ra5 Kf7 Ng3 Ne7 Ne4 Bd3 f1N Nc6 f2 Nd1 Rd5 Qb4 c3 Bf4 Qe2 Nh8 c1B Rg1 h1Q Rg4 h2 Bc2 Nf6 Bh7 Ng3 Be3 f1N Bg1 Bg5 Rc1 Na6 b8B Nd2 b7 Nfe4 Bc7 Rh3 b8B Bb7 e6+ Kc8 e7 Nac5 e8N Na4 Ra1 Ba8 Rb1 Nb6 d7+ Kb7 d8B Kc8 Rc1 Bg7 Bf4 Rh5 Rc2 Qhf3 Rb2 h1Q Nd6+ Kd7 Rc2 Qfd3 Rc1 Qa6 Ra1 Qa3 Rc1 Be5 Kf8 Bd4 Ndf7 Kc8 Ke8 Bg7 Bbe5 Qhf3 Rb1 Qfd3 Bd6 Qda6 Bde5 Qb7 Bb8 Nf5 Bfh2 Nfg3 Bf4 Qb3 Rb2 Qa3 Rb3 Nb1 Na5 Rb5 Ne3 Qa7 Bf2 Qd1 Rb2 Nc5 Bfg1 Bh1 Nc6 Nce4 Rc2 Qe1 Nd1 Rd5 Rb2 Qb7 Rg2 Nf1 Bhg3 Nbd2 Rh2 Qe3 Rhh4 Qe2 B3h2 Nfg3 Rh3 Nf6#
B2kbRB1/1rb1R2q/1N2p2n/4q1n1/KrQB3R/2B1p1rb/1RN4q/3b3R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 d5 g4 h5 c4 e6 Kc2 a4 b4 e3 c5 h3 f5 a3 Kb3 h2 c6 d3 g5 a2 c7 d2 b6 d4 b5 d3 b7 h4 g6 h3 g7 Na6 b8R Qd5+ Ka4 Qe5 f6 Bd6 b6 Ra7 b7 Rh5 Qc2 d1B Bd2 Bg4 Qc4 Nh6 Bc3 d2 Na3 d1B+ Nc2 Bf5 g8B Nc5+ Kb4 Rg5 Nf3 Rg3 Bg2 Ne4+ Kb3 Ng5 f7+ Ke7 f8R Bd7 c8R Bc7 Nd2 Be8 Rd8 Ra5 Rd4 Rb5+ Ka4 Bfg4 Rb1 Bf5 Rb2 a1R+ Qa2 Rb1 Nc4 Bfg4 Nb6 Bf5 Qc4 Bfg4 Re1 h1Q Ra8 h2 b8B Qg1 Ba7 Bh3 Rh4 h1Q Rc8 Qf2 Ba8 Qfh2 Rd8 Qhe4 Rh1 Qg6 Rd2 Qh7 Rdf2 Kd8 R2f7 Qg6 Re7 Qgg7 Nd7 Qh7 Bad4 Rb7 Ra2 R1b3 Rb2 R3b5 Nb6 Rb4+
NqBq1RRB/nB4b1/Nnpn1Q1q/B7/r1r4p/B3kbNK/rN2r3/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kd5 d4 Ke4 b4 h5 d5 a5 g5 f5 g6 f3+ Kh3 c3 b6 a4 b5 c2 g7 f2 b7 a3 b6 a2 d6 c6 d7 f4 Qd6 f3 Ba3 c1N Nc3+ Ke3 Qf6 Nd3 Na4 Ne7 g8B Nb2 Be6 Nc4 Nb2 Ra4 Rh2 Rh6 Rg2 Nd6 Rg8 Bg7 Rb1 a1R Rf8 Qc7 d8B Nd7 b8N Ra2 b7 Nb6 Na6 Qb8 Bg4 Be6 Bc7 Bg8 Bc8 Bd5 Rd1 Be4 Rd4 Bd5 Rg4 Rg6 Rg3 Rgg4 Rg2 Rgc4 Rg4 Kd2 e4 Ke3 e5 Be4 Bd3 f1R e6 f2 Ne2 Re1 Ng3 Bf3 Bf1 Re2 Rg6 Ned5 e7 Nc3 e8N Ncb5 Bd8 Na7 Nec7 Bh6 Rgg8 Bg7 Kh2 h3 Na8 Re1 Bd3 f1Q Bdf5 Qd3 Bg4 Qc7 b8B h4 Bb7 Re2+ Kg1 Qg6 Bgc8 h2+ Kf1 Qd7 Bbc7 Qh6 Be7 Nd5 Ba5 Qc7 Bd8 Qb8 Bc3 Qg5 Bda5 Nb6 Qf5 Qd8 Be5 Bh6 Bh8 Bg7 Qf6 Rec2 Nb4 Kd2 Qg6 h1Q+ Kf2 Qd1 Qf6 Qe2+ Kg1 Qe3+ Kh2 Qh6 Kh3 Ke3 Na6 Re2
4Br1b/1bqRKB1N/5RBb/rb3N1n/1b3prp/1BNQ4/1N1b2k1/4Bn2 w - - 0 1 illegal: No possible last move, all moves rejected
1B1bbn2/2qkp3/1r2R1nb/3NQN1B/5Kb1/R3r1B1/Rp3b1R/1bB2n1R w - - 0 1 illegal: No possible last move
R1N1R2Q/1n1p1np1/n1N1r3/Bb2nrR1/N5BK/2n3r1/1q2Rn1R/3kb1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 h4 Kd5 c4+ Ke4 h5 f5 b6 a5 e3 d3 b5 d2 c5 f3 Kg3 f2 b7 a4 h6 a3 h7 f4+ Kg2 f3+ Kg3 a2 c6 Bb4 c7 Nh6 b6 Ra3 Bg2 Kd3 e4 f1R e5 f2 e6 Na6 b8R Qf6 b7 Qb2 e7 Nf7 Rh4 Re8 Qe2+ Kc2+ Qf3 d1N h8R Nc3 Qe4+ Kd1 Rh2 Ba5 Kh4 g3 Bh3 g2 Ra8 Bb4 Nf3 g1N Bg4 Nh3 b8N Bb7 c8N Bc6 Rh5 Bb5 Rg5 Rb3 Na3 Ba5 Rb1 a1N Nc4 Ra3 Nc6 Nb3 Ra1 Nbc5 Ra2 Nb7 Ng1+ Ne2 Qf4 Qf6 Bd2 Rg3 Rc2 Qb2 Qf6 Bb4 Be3 Ba5 Bb6 Be1 Be6 Nc3 Qh6 Nf4 Ba5 Nd3 Re2 Nde5 Bh3 Rh8 Qh5 Rh6 e8R Re6 Nf3 Rfg1 Qh8 f1N Bf5 Ne3 N4b6 N3g4 Na4 Rf1 Ng1 Rf4 Rf8 Nf2+ Bg4 Rff6 Re8 Rf5
5BR1/n1BB2B1/n1Nnrbk1/N1b1p3/bpR5/1Q1qRK1n/Rb3Br1/7n w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 g4 e5 d4 c5 f4 b5 a4 h5 f5 e3 f6 b3 d6 b2 a5 h3 d7 c4 a6 h2 d5 h4 d6 h3 a7 c3 g5 b4 Na3 b1N Kf3 e2 Nc4 e1B Na5 c2 Ra2 Na3 Be3 c1B Bb5 Bb2 Qb3+ Nc4 Bf2 Rh6 Ne2 Ne7 Nd4 Na6 Ndc6 Kg6 f7 Rb8 Rg1 h1N a8R h2 Rg4 Bb7 Re4 Nc8 Re3 Na7 Ba4 Be7 f8B Bf6 Bb5 Rc8 Ba4 Rc7 Rc8 Bec3 Bg7 Bd4 Bb5 Bc5 Ba4 Qg8 d8B Qh7 d7 Nd6 Be7 Ba8 d8B Rd7 Bg1 Nf2 Bc7 h1N Bef8 Nh3 Bf2 Re7 Bb5 Re6 Ba4 Kh5 Bb5 Qd3 g6 Rh7 Bh8 Rhe7 g7 Kg6 g8R+ Rg7 Ba4 Kh7 Bb5 Rg2 Bhg7 Kg6 Rd8 Nf7 Rd4 Bb7 Rc4 Bc8 Nb8 Nd6 Bd7 Bb7+ Re4 Bd5 Nbc6 Bc4 Rd4 Bb5 Rc4 Ba4
3b2B1/2bB4/bBpb1NpN/1r3nr1/bQ1bnK2/7k/q3BBRB/q1R2Q2 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 Ke2 Kd7 Ke3 Ke6 f4 Kf5 a4 e5 d4 b5 h4 g3 a6 g2 d5 c3 a7 b4 h5 c2 h6 g6 d6 b3 d7 b2 a5 Ba6 h7 Bd6 Nh3 g1B+ Nf2 Ne7 Rh2 Re8 Nc3 b1B h8B Ba2 Bf6 Bb3 Rg2 Ba4 Nd5 Qc8 d8B Nd7 Bg7 Nc5 Be2 Qe6 Nf6 Qa2 Qf1 Bh2 Bd2 c1B N2g4 Bb2 Be1 Rb8 a8B Rb5 Bd5 c6 Rc1 Ba1 Bb6 Bc3 Kf2 e3+ Kf3 Ne4 Bg8 Bd4 Bf2 Bc7 Bh6 Rc5 Bg5 Rd5 Bgh4 Bd8 Bhg3 Rb5 Bec4 e2 Bd3 e1B Be2 Bc8 a6 Bb4 a7 Ba6 a8B Bd6 Bb7 Bc3 Bg1 Nf2 Bec4 B6c7 Nd7 e4+ Ke3 B3e5 Bc8 Rd5 Bh4 Bg3 Bh2 Bed6 Nge5 Ra5 Nf7 Kg4 f5 Kh3 f6 Rg5 Bb5 Bge5 Nh6 Bb2 f7 Nf5+ Kd2 Re7 Nf6 Re5 Bd7 Bd4+ Rc2 Nd3 Bf2 e3+ Ke2 Nc5 Kf3 e2 Kf4 e1Q Be2 Qea1 Rc1 Ne4 f8Q Ba3 Qc5 Bb4 Qc4 Bbd6 Qb4 Rb5+
N1r2Rb1/1rn3QB/q5rp/B4K1n/nbb2N1k/3NN1pN/1n1R4/1B1b1B2 w - - 0 1 illegal: No proof kernel
2B3r1/2r1n2r/bNBBR1pk/8/1n2R1n1/2NBN2b/1NrN2pn/q1b2QK1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 h4 a5 e4 f5 b4 Kf7 c4 Kg6 c5 a4 h5+ Kh6 b6 a3 c6 d3 c7 a2 e5 g6 e6 d4 b5 d2 b7 f3 e7 d3 e8B f4 b6 Qd6 Bc6 Bg7 Rh4 Qa3 Nc3 Na6 b8N Ne7 b7 Rh7 Nd7 Nb4 b8N Ba6 c8B Qb2 Rb1 a1R Nc5 Ra2 Nbd7 Qa1 N5a4 Rc2 Ba3 Be5 Qe2 d1R Ndb6 d2 Nb2 Rdc1 Qd1 Bc7 Bd3 g3+ Kf1 f2 Nf3 Bd6 Qe1 d1B Nd2 Bg4 Kg2 f1N Kg1 Nh2 Qf1 Bf5 Rg4 f3 Re4 g2 Re6 Kg5 h6 Bf4 Re4 Ng4 Re6 Rh8 h7 Kh6 Re4 Rg8 h8N Ra7 Re6 Rc7 Re4 Re1 Rd1 Re3 Re1 Bd7 Re6 Re5 Re4 Rh5 Ndb1 Bc1 Nd2 Rh3 Nf7+ Kg7 Na2 Ne5 Rf6 Rh7 Qe1 Nbd5 Bd6 Nb4 Nc3 Bh3 Re6 Ng4 Ne5 Kh6 Qe2 Nf6 Nec4 f2+ Kh2 f1N+ Kg1 Ng4 Ne3 Nfh2 Qf2 Ned5 Qf1 Ne7
q2RN3/2BN1N1n/BRqQN2r/1bb1r1b1/pBn3r1/r2pk3/1N4KB/6b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 c5 g5 h5 a5 c6 g3+ Kf3 g4+ Kg2 d3 c7 Kd4 b6 d2 b5 Bc5 h6 Nf6 b7 Nbd7 b8N Ke3 b6 d4 b7 Ne5 h7 Nc4 e5 Bd7 c8N Bb5 Rh2 f3+ Kh1 f2 e6 f4 e7 f3 Rh6 g2+ Kh2 a4 e8N Ra5 Nh3 g1B+ Kg3 Qd6+ Nf4 Qc6 Ne6 Be7 Be2 f1Q Ncd6 f2 Nc3 Bd8 Nf7 Qfg2+ Kh4 f1R Ba3 g3 Nd7 Rf5 b8B Re5 Bc7 Qge4+ Kh3 g2 Bd3 Qed5 Be2 Re4 Bb4 Qa8 Rb1 Qdc6 Rg6 Bf2 Rg8 g1B Kg2 Be7 Rf8 Bh4 Bf1 Bg5 Bh2 Bc5 Rb2 Rg8 h8B Nh7 B8e5 Rg6 Bc7 Rh6 Qa1 d1R Qa3 Ra1 Rb1 Kd2 Nd1+ Kc2 Qg3 Ra3 Rb3 Kc1 Qd6 Kc2 Nb2 Kc1 Rc3+ Kd2 Bd3 Ke3 Rb3 Qcb7 N8g7 Qc6 Rd8 Ne5 Bc4+ d3 Ne8 Qca6 Bd5 Nc4 Bb7 Qc6 Ba6 Bd4 Bb7 Ba6 Bc3 Rae5 Rb6 Bb5 Ba6 Bc5 Bb4 Rg4+
Q2R4/q1rR1pp1/qRRR2Q1/Rbbb1K2/1B1N2n1/4r3/nbB3n1/Nnk5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 g3 h4 f3 b4 g2 c5 f2 h5 d3 h6 d2 c6 a4 h7 a3 c7 a2 b6 Nc6 b5 Nh6 b7 Ra3 b8R Bc5 b6 Ng4 b7 Nb4 Nf3 g1Q Qc2 d1N Rh6+ Qf6 Nbd2 Nde3 Nb3 Ng2 Bd2 d6 Rd1 a1B Ra8 Na2 b8R Bb2 Bb4 Bb7+ Rd5 Rc8 h8Q Bc6 Na1 Bb7 e3 Rc3 Be2 f1B Bd1 Bb5 Ra5 Re8 c8R Re7 Nh4 Rc7 Nf5 Qg6 Qf8 Kf6 Rd8 Kg5 Rd7 Ba8 Rb6 Ra3 Rc6 Rd3 Rd4 d5+ Kf3 Bb7 Qa8 Rc3 Rd3 d4 Ke4 Qf2 Rd2 d3 Qb1 Qd6 Bc2 Qf6 Rd1 d2 Nd4 Qg1 Rd6 Ra3 Rd7 Qff1 Rhd6 Qe2 Rf1 d1N Rff6 Rc3 Kd5 Rb3 e4 Re3 e5 Qd3 Rg6+ Kf4 e6 Qa3 e7 Qa4 Ra7 Qa6 e8R Qf2 Red8 Qg1 Ne6+ Kf3 Nd4+ Kf2 Ba3 Ke1 Rgf6 Kd2 Bb4+ Rc3 Ke4 Qf2 Ba3 Qg1 Rg6 Re3+ Kf5 Ndc3 Rb6 Bd5 Bb4 Qb7 Ra5 Qc8 Qf1 Qa6 Qd3+ Kc1 Rdc6 Nb1 Rgd6 Qa7 Qe4 Qe1 Qe6 Qe2 Qh6 Ba4 Qh7 Qea6 Qg6 Bb5
2Br4/1bNR3q/2nBN2q/3B1kB1/2n3R1/pr1pQ2K/1N1qp1rb/1N2Bb2 w - - 0 1 illegal: No possible last move, all moves rejected
nbb1BQ1B/2k2N2/2np1bpq/R1NQ1QQ1/3rqq2/1K1pQR2/r2Q4/7r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 e4 a5 h4 d6 c4 Kd7 Kc2 g6 b4 a4 c5 g3 c6+ Kc7 h5 f3 h6 a3 h7 g2 e5 a2 e6 f2 e7 f4 e8Q f3 Bb2 Qh4 Rh3 Ra3 Qd2 Qd8 Qee3 Nf6 Nc3 Ng4 Na4 Nh6 Nc5 Ra8 Kb3 Qh4 Bd3 f1Q b6+ Kd8 b7 f2 b5 Ng8 b6 Qc1 Bc4 f1Q Bb5 d3 Rf3 Ra4 Nh3 g1B Ng5 Na6 b8Q Bg7 b7 Bf6 Qa8 Qe4 b8Q Nc7 Qb6 Qf2 Qba5 Rd4 Ba4 Ne7 Nf7+ Ke8 Qb7 Na8 c7+ Nc6 Qbb5 Qg3 Qc4 Qg4 Qd5 Qf4 Qg5 Bf2 Qb5 Ke7 Qc4 Qh1 Qcd5 Qh6 Bb5 Ne5 Be8 Nc6 Rh1 a1R Rh5 Ra2 Bc3 Ba6 c8Q Bb7 Qcf5 Bc8 Ne5 Kd8 Nf7+ Kc7 Bb2 Rg8 h8Q Rg7 Qf8 Rh7 Qde2 Be1 Q2f2 Ba5 Qfd2 Bb6 Rh1 Ba7 Ra1 Bb8 Bc3 Rc2 Ra5 Ra2 Qeg1 Rc4 Be5 Rd4 Qge3 Bd8 Bg7 Bf6 Bh8 Qg7 Qef2 Rh1 Qfe3 Qh6
2b1qN2/2RN3r/p1Nr2B1/2n1BQbQ/8/K1NppNNq/n3R3/k2b1n1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 g5 e5 b6 a6 b7 d3 Kc3 d2 Kb2 Kd4 c4 d5 b5 e3 g6 h3 f5 h4 c5 h2 b6 e4 f6 h3 c6 e2 c7 e1Q f7 e3 g7 Be7 f8N Qe8 Nc3 Qg3 Qh5 d1B Bd3 Bg5 Ka3 Nc6 b8N Rh7 b7 Nf6 g8N Ne4 Ne7 Nc5 Ra2 Nb4 Re2 Na2 Bg6 Kc4 Nf5 d4 Nf3 d3 Rf1 h1R Nc6 h2 b8N Qh3 Nbd7 Rb8 Ng3 Rb6 Ncd4 Rd6 Bb2 Rg1 Nc6 h1N Rff2 Re1 Rc2 Rf1 Rfe2 Rg1 Nf5 Ng3 Ba1 Nf1 Ng3 Bb7 c8Q Rh1 Qd8 Bc8 Qf6 Rh6 Qf5 Rh7 Rb2 Qh4 Rb7 Qh3 Nb5 Bc2 Be5 Bd1 Nbd4 Kc3 Rc7 Nd2 Nb5+ Kc2 Ncd4+ Kb1 Nc3+ Ka1 Nc6 Nf1
1K1RR3/3R3p/k1N2p1b/1r3B2/B3qb1r/Q3r2n/p1NnB2B/1R1bqnB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Kd5 c3 e4 c4 d4 f6 b4 h3 g4 h2 g5 c2 g6 a4 g7 f3 e5 f2 b6 a3 b5 c3 b7 a2 b6 Ra3 Be2 f1N Qd3 Nh6 g8B Qe8 e6+ Kd8 e7+ Kd7 Nf3 Na6 b8B Qg6 e8B+ Kd8 Kc6 Nc5 b7 Bg4 d5 Qe4 Be6 Nb3 Be3 c1B Nd4 c2 Bf5 Nbd2 Bg1 Nf7 Bf4 Rb3 Na3 Ng5 Rb1 Nh3 Be5 Bh6 b8R+ Ke7 Qg3 Re3 Kb7 Bh5 Ba4 Re8 Ra8 Bf4 Ra7 Kd8 Kb8 Bh6 Bf4 Re5 d6 Bf3 Re7 Bg4 d7 Bf3 Ka7 Kc7 Nc6 Bg4 Re8 Bf3 Beb5 Bd1 Ka8 Kb6 d8R Bb2 Bc4 c1Q Kb8 Qc3 Bcb5 Bc1 Nc2 Qcb4 Bf2 Qc3 Be2+ Qcb4 Rg1 h1R Qf3 Rh2 Rg7 Rh1 Bh2 Bf4 Rd3 Ka6+ Rb7 Qc3 Rbd7 Nc4 Ne1 Bh6 Nd4 Nf4 Bhg3 Rh4 Rd5 Nh3 Nec2 Qe1 Rd2 Rd3 Bh2 Nb2 Rdd8 Nc4 Bfg1 Ra3 Rd3 Bcf4 Nc6 Ncd2 Qe3 Rc3 Qc5 Ra3 R3d7+ Rd3 Bf3 Rc3 Qa3 Re3 Be2+ Rb5+
2qn4/1b1p3Q/2R1B1rN/BR1BKq2/2bN4/B1brk1np/2rNN1p1/N6n w - - 0 1 illegal: No proof kernel
R2q4/2BBbN1B/bp3nrQ/kB2NK1b/3Bn3/p1r5/1R2p1bB/3bQ2r w - - 0 1 illegal: No proof kernel
Q3B1br/Rq2B2R/b3R1p1/2Nn4/1q1N2Bb/3b2pp/1nR2R1B/K3br1k w - - 0 1 illegal: No proof kernel
1r2k1nb/2B2R1p/1r2n2p/BqrpBK1r/1q4B1/1N3b2/1Q2B1RQ/r2N3B w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 h6 gxh6 axb5 Qe7 Be3 Qf6 Bc1 Qd8 Kf2 a5 Kf3 f5 e4 d6 c4 d3 g4 a4 b4 d2 b6 a3 g5 a2 b7 Ra6 g6 Qe7 b5 Qc7 e5 Qa5 c5 Qb6 g7 Ra7 c6 Qa6 c7 Ra8 b6 Nd7 b8B Kf7 b7 Qa4 e6+ Ke7 Be2 Ndf6 Qb3 d1R Nh3 Ra6 Nf2 Nd7 Rg1 Nc5 Qb2 Ke8 e7 Ne6 Bd2 Qb4 Rg2 Rh1 Nd1 Rb6 Be1 Rh5 Nd2 Bd7 c8B d5 Bc7 Bb5 b8B Ba4 Rc1 a1R Nb3 Bd7 Be5 Ra5 Bbd6 Rc5 Bc7 Bb5 Ra1 Bd3 Ra7 Be4+ Kf2 f3 Kg3 f4+ Kg4 f2 B1c3 Qb5 Ba5 f1R Rb7 f3 Bd7+ Kf7 e8B+ Ke7 Bg6 f2 Bc8 Qb4 Bf5 Ke8 Ra7 Ne7 g8Q Rfh1 Qg5 f1Q Qh4 Bg7 Qh2 Ng8 Rb7 Nd4 Ra7 Bf3+ Kf4 Bf6 Be4 Bg7 Bg4 Ne6+ Ke3 Qfe1 Rb7 Qb5 Ra7 Qeb4 Rb7 Ng5 Kf4 Bf6 Kf5 Rg1 Ne3 Ra1 Nd1 Bg7 Bb8 Bf6 Rf7 Bg7 Bbc7 Bf6 Bf4 Ne6+ Bg5 Bd4 B4d3 Nf6 Rf2 Bg2 Bc2 Rf8 Be4 Ng8 Be4f3 Bh8 Be4 Rh4 Be7 Kd7 Be4f3 Rfb8 Bed6+ Ke8 Be5 Bh3 Bh1 Bg2 Qf4 Bf3 Rg2 Rh3 Qh2 Rh5+
k1r3Nr/N1R1N1B1/4qq1N/2qp2pr/p3Qb2/R6B/b4N1Q/1n1nqK1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 Kd7 e5 Kc7 c5 Kb7 c6+ Ka7 e6 f5 e7 g3 e8N f3 c7 g2 h5 d3 b6+ Kb7 b5 a4 h6 f4 h7 Bd6 Ne2 g1Q Nf6 Ne7 Ng3 Qg8 Nd2 Nf5 Qe2 Nc6 Ra3 Qe6 Bb2 Na7 Nde4 Qc5 Nf2 Ne3 Bh3 Nd1 Ng8 d2+ Kf1 Rb8 Bd4 Ka8 Qe4 Ba6 c8N Bc7 Nce7 Rc8 Bg7 Be5 Ng4 f2 Rg1 Bd6 Nh1 Bc7 Rgg3 Bb8 Rgc3 Bc7 Kg2 f1R Ngf2 Re1 Rc2 Re2 Rc4 f3+ Kf1 Bf4 b7+ Kb8 Nd3 Rh2 Rc1 f2 Rc2 Kc7 b8N Kb7 b6 Ka8 Nbc6 Nb5 Na7 Nbc3 Rc1 Bc4 b7+ Kb8 Rc2 Ba2 Rc1 Nb1 Rcc3 Kc7 Rc1 Kb6 b8Q+ Ka6 Qbe5 Kb7 Rc2 Ka8 Rcc3 Qd4 Rc7 Qb4 Bg4 Rh5 Bh3 Qc5 Qd6 Be3 Qh2 Bf4 Nh6 Rhf8 h8N Rfd8 N8f7 Rh8 Nac6 Nb2 Na7 d1Q+ Qe1 Qd2 Qe4 Nd1 Nhg8 Qdc3 Nfh6 Q3d4 Nb4 Qdf6 Nd3 Be3 Kg2 f1Q+ Kg3 Qf6f5 Ndf2 Bf4+ Kf3 Qe2+ Kg2 Qff6 Kg1 Qee3 Kf1 Qe1+
N2k1B2/qR5n/2nN3B/n1pr1BN1/1R3Nb1/pp1BqQb1/Br4q1/4n2K w - - 0 1 illegal: No proof kernel
2Nb3R/r1B3bp/r1R3pb/1B3k2/1q2p3/RRBB3r/bqn1n3/N1Q3RK w - - 0 1 illegal: No proof kernel
Q3RB2/1RN1p2N/q2q2R1/R2b2pN/2N2Npk/7q/n1rK1n2/br1B1qb1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 c4 Kf6 h4 a5 b4 d5 b6 d3 h5 d4 f5 e3 b7 Kg5 b5 g6 h6 a4 b6 a3 f6 a2 h7 Ra5 f7 Rc5 Na3 Na6 b8N Rb5 b7 Nf6 c5 Be6 c6 Qc8 c7 Bg7 f8N Ne4 Ne2 Nb4 Qa4 d2+ Kd1 Rc5 Qa8 Rc2 Ng3 Be5 Rh6 Nf2+ Ke2 Rg8 Nh5 Bh2 h8N Kh4 Nc4 g5 Na6 Bg1 b8R Qb7 c8R Bf7 Rb1 a1B Nc7 Qa6 Bb2 Rg6 Bc3 Rb6 Rb7 Bg8 Re8 Na2 Re1 Rb1 Nh7 Bf7 Bg2 Bg8 Bf3 d1Q+ Kf1 d3 Bg7 d2 Bf8 Qc1 Ke2 Qca3 Rc6 Be6 Rc5 Bf7 Ra5 Bg8 Nf7 Qb3 Ne5 Bf7 Nd3 d1Q+ Kf1 Bg8 Ndf4 Qd8 Rd1 e2+ Ke1 Qe3 Bh1 Qh3 Bf3 Nc1 Rd6 Bd5 Rg6 Qdd6 Rc8 Rc3 Kd2 Na2 Rd8 Rc2+ Ke3 Qh1 Re8 e1Q+ Be2 Qf1 Bd1 Rcc1 Kd2 Qhh3 Rbb8 Rc3 Rb7 Rc2+
1b5B/2q2R1Q/3N2RQ/1pb4b/k1N1R3/pr1Brn1p/1RKbn1n1/1R1Rn3 w - - 0 1 illegal: No possible last move, all moves rejected
RRK3rn/q2N4/4B1p1/kr1NQ1pQ/B2p1B1B/3Br1Bn/3p4/2bbn1q1 w - - 0 1 legal: proof: f4 b5 g4 e5 a4 exf4 axb5 c5 d4 cxd4 g5 h6 Be3 hxg5 Bd2 Na6 Bc1 Nb8 Kf2 f5 Kf3 d5 h4 Kd7 e4 Kc7 c4 Kb6 b4 a5 e5 a4 e6 a3 h5 a2 h6 d3 h7 d2 e7 g6 e8B Nc6 Bd3 Ba6 Nc3 Nge7 Bd7 Rg8 h8Q Rc8 Qe5 Qc7 Rh8 Rb8 Rb1 a1N c5+ Kb7 b6 Nc2 b5 Nd8 Be8 Rg7 Qde2 Nf7 c6+ Ka8 b7+ Ka7 Qh2 Kb6 Qh5 Ka5 b6 Qd7 Rg8 Nh8 c7 Qa4 c8B Ne1+ Ke2 f3+ Ke3 f2 Nf3 f1R Be6 Qa1 Kd4 f4 Kc5 Rg1 Kd6 Rg3 Kc7 Qa4 Bdf5 Be2 Bd3 Bd1 B8d7 Qa3 Ba4 Rh3 Nh2 Re3 Ng4 Qa2 Nf6 Qa3 Nd7 f3 Bb2 f2 Ba1 Ra8 b8B f1Q b7 Qg1 Ba7 Re8 b8B Rc8+ Kb7 Rc5 Rb4 Rb5+ Kc7 Rg3 Bf2 Re3 Bh4 Qa2 Bb2 d4 Ba3 Nd5+ Kc8 Nf4 Nd5 Bd6 Rb3 Bf8 Bad6 Nh3 Qf5 Qg4 Kd8 Rb4 Bab5 Qg1 Bdg3 Qa3 Rb2 Rb3 Bbd6 Qc5 Ba4 Rb7 Bdf4 Qa7 Qe5 Ba3 Rb4 Bc1 Rb1 Rb3 Rb2 Qa8+ Kc7 Qa6 Ra8 Qa7+ Kc8 Rb6 Rc2 Rb1 Rc3 Rb2 Rb3 Rb1 Rb6 Rb5 Rbb8 Rg8+
N2K1N2/B1N5/1p2rb1b/6NR/1N2ppq1/1Qnn1p1B/n1R1q1bR/3k1rR1 w - - 0 1 illegal: No proof kernel
N4rN1/n1Qprqq1/4bBpb/2p1R2R/3Brn1B/2QK2bB/3Bp2k/5B2 w - - 0 1 illegal: No proof kernel
6kN/p3R1p1/q5N1/1rB1np1K/qr3r1N/p2NQBR1/N4qb1/2Bn1Bb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 c5 d4 f5 h4 Kf7 b4 f3 Kg3 c4 e4 a3 b5 c3 b6 f2 h5 c2 b7 Qa5 Kh4 g3 h6 g2 d6 Be6 d5 Bd7 e5 Qd8+ Kh5 Qc8 h7 Qe8 Nf3 g1Q Nc3 Bb5 d7 Bc6 d8N+ Ke7+ Nf7 Qg3 d6+ Ke6 d7 Qh3+ Nh4 Qg2 d8B Ne7 Qd4 Nd7 b8N Nd5 Na2 Ne3 Na6 Rb8 Rg1 Bc5 Bb6 Nd1 N6b4 Qg3 Rb1 Bg2 Qe3 Qc8 Ra1 Qa6 Nd3 Ke7 e6 Kf8 Rb1 Ne5 Rb4 Rg8 h8N Qf4 Rb3 Qfa4 Rc3 Bd4 Rc7 Rb7 Re7 Bc5 Bd8 Rb5 Bb6 Bd4 Bc5 Rb4 Be2 f1Q Bg4 Qf2 Bf3 Bh1 Rg3 Bg2 Ng5 Rb5 Nh3 Rb4 Bb2 c1R Nhf4 Rc2 Bc1 Rcc4 Rb7+ Ke8 e7 Rf8 Rd7 Rf6 Nfg6 Rfb6 Rd6 R6b5 Re6 Kd7 e8B+ Kd8 Qe2 Be3 Re7 Rf4 Bf7 Bd4 Bc4 Be3 Rc7 Bd4 Qe3 Ke8 Ne7 Kf8 Rb7 Qe6 Neg6+ Kg8 Re7 Rb2 Ne1 R2b4 Bf1 Qea6 Nd3 Qd2 Qe4 Bg1 Qe3 Qf2
1n3Q1K/1B2bNrp/1pRq3N/3BNnp1/1N1k2B1/N1n5/b5pr/B2nb1R1 w - - 0 1 illegal: No proof kernel
b1R1R3/R3qnpp/n2R1bQ1/rpRB4/1B5k/BNK1p2B/r5n1/1bn1N3 w - - 0 1 illegal: No proof kernel
nq5R/2QBp1q1/2N2p2/1B3Rn1/2B1pBNR/4b2r/2R1p3/qkqbK1rB w - - 0 1 illegal: No proof kernel
R2bq3/4npp1/N1N3B1/R4NR1/N1pq1nr1/7r/1RRBp1pk/b2QK2b w - - 0 1 illegal: No proof kernel
1BbqQrr1/2p4K/B2pBn2/3Q1Rpp/1B6/pqBNbb1N/3Bn1k1/1R6 w - - 0 1 illegal: No proof kernel
n4r1r/2B1nN1p/N3NR2/1qQbp1b1/2R3rk/NBp1N3/p1K1Qrp1/4N3 w - - 0 1 illegal: No proof kernel
3Q4/2B1pn1Q/BQ1Nr1pr/p3q3/Q2b2R1/Qqp4R/1pkp2K1/1n1NQb2 w - - 0 1 illegal: No proof kernel
NRBK2B1/qn2r1r1/N4b2/2N1bnqQ/R1N2RRb/4q1B1/b5b1/5qk1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 d4 Kd6 e4 c5 h4 g5 b6 f5 b7 b3 h5 g3+ Kf3 g2 h6 g4+ Kf2 f3 Kg3 c4 Kf4 f2 h7 c3 Ra4 b2 Ba6 f1Q+ Nf3 g1B Nd2 b1B Rh4 g3 Rg4 g2 Nb3 c2 Nc5 Qe1 Ne5 Nd7 b8N Ne7 Kg5 Ba2 Bf4 Bb7 Bg3 c1B+ Rf4 Qda5 Qh5 Qe3 Bc4 Qb6 Nba6 Bg7 Bb3 Rhb8 h8R Bh2 Rg8 g1Q Bc4 Ra7 Bb3 Nc6 Kg6 Ba8 Kf7 Rbb7 Ke8 Bf6 Rgg4 Ne7 Bc4 Qb5 Kd8 Qgf2 Nc7 Bh4 N5a6 Bb2 Bb3 Nc5 Bc4 Rb6 Bb3 Bc6 Na8 Rbb7 Rf3 Rb6 Bf4 Ng8+ Kc8 Qed2 Bc4 Rg7 Bb3 Bg1 Bg3 f4 Bc4 Rbb7 Bb3 Ke7 d6+ Kf6 d5 Qc1 d7 Nh6 d8R Qd3 d6 Bh2 d7 Nf5 Bg8 Qfd4 Rf2 f3 Nc4 Qg5 Bc7 Ba1 Rf1 f2 Re8 Qb3 d8N Qb6 Bb8 Qa7 Ne6 Bd6 Rd8 Be7 Bg3 Bd5 Rd1 f1Q Rd3 Bc6 Rf3 Qdd3 Rff4 Qdf3 Na5 Ke5 Rf8 Bf6 Re8 Kd6 e5+ Kd5 Nc4 Rbe7 Rf8 Nb7 Nec5+ Ref7 e6 Bae5 e7 Qc3 Ne4 Kd4 e8B Re7 Bd7 Kd3 Nec5+ Ke2 Re8 Qe3 Bde6 Bg2 Bd7 Ba1 Kc7 Bad4 Rb8 Bde5+ Kc8 Qff3 Bde6 Kf1 Bd7 Kg1 Bde6 Na5 Kd8 Qf1 Bc8 Nb7+
2B2bN1/2K1N1qk/n1NB4/1bn3B1/2NR1n1b/2qr2R1/2r4n/bn2QRR1 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 g5 d4 c5 h4 f5 e4 Kf7 e5 Kg7 e6 b3 b6 g3+ Kf3 b2 b7 c4 e7 g2 e8R c3 d6 c2 d7 Qe7 d8N Bd7 d5 Ra3+ Nc3 b1N d6 Na6 b8B Bb5 h5 Nf6 d7 Kh7 h6 Ne4 Rh3 Qg7 Rg3 Nec5 Re1 Rb3 Bd2 c1B Bd6 Bb2 Nc6 Ra3 d8R g4+ Kf2 f3 Ke3 f2 Kf4 Rg8 Ne4 Rd3 Nf3 g1B Bh3 f1N Nfe5 Bf2 Nc4 Nh2 Rf1 Qc3 Bc1 Rg7 Qe1 Rc7 Rf3 g3 Nf6+ Kh8 h7 g2 Rg3 g1N Ng8 Ne2+ Kg5 f4 Kf5 f3 Bg5 Kg7 h8N Kh7 Ng6 Nf4 Ng6e7 Qg7 Rd7 Bf6 Bg4 B2d4 Bh3 f2 Rfg1 f1Q Rd8 Nb7 Ke4 Qf2 Bc8 Qb2 Kf5 Qc3 Rd7 Ng6 Ke6 Bde5 N6a5 Rc5 Nac6 Bd4 Rd8 Nf4+ Kd7 Bf2 Rh3+ Bh4 Rhg3 Re5 Rf1 Re2 Rfg1 Rc2 Rf1 Nb4 Kc7 Nc5 Ra2 Rc1 Rag2 Rc2 Rd7 Qb3 Rgg1 Ba1 Be5 Qb2 Rd4 Qc3 Bd6 Nba6+
3K4/2RRnkB1/1r1n3B/2rb4/1NQrBb2/bB2NrRN/2r4n/2b2Rn1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 g4 Bf1 Qg5 hxg5 fxg3 Kd2 f5 Kd3 d5 e4 h5 b4 a5 c4 a4 b6 h4 b5 f4 g6 f3 c5 f2 e5 h3 b7 a3 e6 a2 b6 g2 e7 g3 g7 h2 c6 Rh3 c7 Be6 c8R+ Kf7 e8N Nc6 b8B Nf6 b7 Ne4 Rc7+ Ne7 Ne2 g1N Qa4 Ra6 Nf4 Rb6 Na3 Nd6 Nc4 g2+ Ne3 Rf3 Rb1 a1B Rb3 Bc3 Nh3 Bb2 Qc4 Ba3 Be2 f1N Nf6 Bb2 Bd2 Bc1 g8B+ Kg7 Bh7 Kf7 Ra3 Bh6 Bd1 Bf4 Ra7 Ba3 Bb3 Bc1 Kc2 d3+ Kc3 Ba3 Bc1 d2 Kd4 d1R+ Bd2 Rc1 Be4 Rc3 Rd7 Bc1 Kc5 d4 Nfd5 d3 Nb4 Rc2 Bc7 Bd5 b8R Ba3 Rg8 Bc1 Bc3 d2 Rg3 d1R Bg7 Rd4 Bd8 Ne2 Rg1 h1R Rac7 Nh2 Rf1 g1B Bh6 Ra6 Bg7 Ra5+ Kb6 Rc5 Nd1 Bge3 Bh6 Bed2 Ne3 Ba3 Bg7 Bdc1 Bh6 Ke6 Bg7 Ng1 Bh6 Nc6 Bf6 Ne7 Bfg7 Kf7 Rb7 Rb5+ Kc7 Rb6 Kd8 Ng4 Nf2 Rh5 Nh3 Nh2 Ra7 Be6 Rab7 Rc5 Rbc7 Bd5
1B3b1N/1Q6/1B2nN2/NR1n2kN/Br1RKb1r/RR2p2b/q2n3r/5nq1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kf7 Ke3 Kg6 g4 h5 f4 e5 d4 c5 f5+ Kh6 g5+ Kh7 b6 h3 f6 Kg6 f7 c4 d6 h2 d5 h4 b7 c3 d7 h3 d6 c2 Qf3 b3 Nd2 b2 Bb5 b1N Ba4 Na6 b8B Nc7 Nc4 Rh4 Ra3 Ne7 Na5 Ne6 Ne2 Nd2 Ng3 Qe8 Rg1 h1N d8N h2 Nh5 Ng3 d7 h1R Qg2 Kf5 g6 R1h2 g7 Kg5 g8N Ra7 Rf1 Rb7 Rf3 Rb4 Bb2 c1B Ngf6 Ng8 Bd4 Ne7 Bb6 Nd5+ Kf2 Qe7 Rfb3 Qd6 Ndc6 Qc7 d8R Qa7 Ne7 Qa8 Ng6 e3+ Kg1 e2 Kf2 e4 Nh8 Ne7 Ke3 e1Q+ Qe2 Qd1 Qf3 Qa7 Rd7 Qc2 Rd4 Qa2 Qg2 Nd5+ Kf2 Bc5 f8R Bd7 Rc8 Bf8 Rc5 Bc8 Rb5 Qg7 Ng4 Ngf1 Ke2 e3 Kd3 Bb2 Qf3 Bc3 Ngf6 Qg6+ Re4 Be5 Qh1 Bf4 Qf3 Kf5 Rd4 Qg1 Qe4+ Kg5 Qh7 Nd8 Qc7 Bh3 Qb7 Nb1 Ke4 Ne6 Bd8 Qaf2 Bdc7 Qa2 Bb6 Nbd2+
2n1RrrN/2N4Q/2BN3b/1N1pB2b/Rqnq1r2/2b1p2k/R3R3/K4q1B w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 Kf6 f4 d5 g4 e5 c4 h5 Kc2 a5 Kb2 d3 c5 e4 b6 a4 b5 d2 b7 e3 c6 h3 b6 h2 c7 h4 g5+ Kg7 f6+ Kg6 f7 Kf5 g6 h3 g7 Qe7 Bg2 Rh4 Qe1 Kg4 f5 d1Q f6 Qd6 Nf3 Nc6 b8R Qd3 b7 Qd8 Nc3 Nd4 Ng5 Bc5 f8N Ne7 g8Q Ndc6 f7 Ne5 Qh7 Bb4 Ng6 Qd6 f8N a3+ Ka2 Nc4 Nfe6 Bd7 c8B Be8 Nh8 Bh5 Bb2 Qd2 Rf1 h1R Rf2 h2 Re2 Rg1 Nge4 h1Q Bd7 Qc5 Bf3+ Kh3 Bc6 Rg8 Qc1 Qg1 Bh1 Rf4 Rc8 Qde1 b8R Qgf1 Nc7 Ba5 Kb1 Qa7 Rb4 a2+ Kc2 Rb8 N3b5 Ra8 Be5 Qd4 Rf8 Re8 Qb2 Nc8 Ra4 Qb1+ Kb3 Be1 Ned6 Rd8 Rf6 Rdf8 Re6 Qc1 Qc3 Qa3+ Kc2 Qb4 Re8 Bh4 Rd1 Bg5 Rdd2 Bh6 Qa3 a1B Qc1 Nb2 Kb1 Nc4+ Ka2 Bc3 Rc2 Nb2 Ka1 Be1 Qd2 Nc4+ Qc3 R4f5 Rb2 Rf4 Rba2 Bxc3#
b1rnk3/6RN/1N1n3B/RnNR1n2/q1r2KpB/3B4/pQ6/B2qbbN1 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 Kf2 a5 e4 f5 h4 g5 d4 g3+ Kf3 a4 d6 a3 b6 g2 b7 b3 e5 b2 d5 Qe7 h5 Qf7 h6 Ne7 e6 Ra4 h7 Rc4 Qe2 Nbc6 b8N Nd8 Nc3 b1N Qb2 Bb7 Na4 Nc8 e7 Nc3 Nd7 Nb5 Ndb6 Ba8 Nc5 a2 Bd3 Bg7 Rh5 Bc3 Bd2 Rf8 h8B Qg7 Be3 Qd4 Bg7 Be1 d7+ Kf7 e8N Ncd6 Rb1 Ke7 Nf6 g4+ Ke2 Kf7 Nh7 Qe4 Rd1 Qe8 Rc1 Ke7 Bd2 f3+ Ke3 f2 Bh6 f1B Bc3 Rg8 Bd4 Kf7+ Kf4 Rf8 Rc3 Rh8 Ra3 Rf8 Ra7 Rg8 Ne2 g1Q Ra5 Qh1 Ng1 Ke7 Rg5 Qf3+ Ke5 f4 Rg6 Qd1 Rg7+ N6f7+ Kf5 f3 Ke4 f2 Kf4 Nb7 d8R N7d6 Rc8 Qc6 Rc7+ Ke8 Rd7 Ne4 d6 Nd8 Rg5 Rh8 Rdg7 Qd7 Rd5 Qa7 Ra3 Qaa4 Bc3 Bg2 Bd4 f1N Bf6 Ne3 Bh4 Qac2 Ra5 Qa4 Bf6 Bf1 Bd4 Nf5 Bc3 Nf7 d7+ Ke7 d8B+ Ke8 Bh4 Nd8 Qb3 Rf8 Ba1 Ned6+ Ne4 Rf7 Qa3 Rfc7 Qb2 Nfd4 Nc5 Rc8 Bc2 N4f5+ Be4 Nbd4 Bd3 N4b5+
N3qB1n/r6b/1bp2Rp1/nrBR4/1bbR1N2/1B3N2/qQ4R1/2KNqk2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 d4 Ke7 Kd2 Kf6 e4 Kg5 h4+ Kh5 e5 f5 e6 f3 e7 c6 e8N f4 b6 b3 d6 f2 d5 b2 d7 f3 d6 g3 b7 Kg4 h5 g2 h6 Kg3 h7 Qa5+ Nc3 b1Q d8R Qg6 d7 Ne7 Nc7 Ra7 Qe2 Na6 b8B Nc5 Rh2 Qe8 Ba3 Ng6 Kc1 Nb7 Qb2 Bb4 Bc4 f1B Bb3 f2 Nd1 Bc4 Nf3 g1B Rg2+ Kh3 Rb1 f1Q Na8 Bb6 Bd6 Qfe1 Bc5 Rg8 Ra1 Nh8 Ra2 Qa6 Rg6 Na5 Rf6 Q8e2 Bf8 Kg2 Bc5 Kf1 Bf8 Nf7 h8N Qe8 Ng6 Nh8 Nf4 g6 Qb1 Rg7 Rg2 Rh7 Bc5 Rh5 Qb2 Bg8 Bf8 Rb5 Bc5 Bh7 Bf8 Be7 Bc5 Bb7 Rc8 Bd6 d8R Be7 Rb8 Bc8 Rdd6 Be6 Rbd8 Bc4 Rd5 Bd6 Bg1 Bb4 Bgc5 Nb7 Rd4 Qa2 R8d5 Na5
b2n1bB1/BR3n2/3NNnpb/R2NQBq1/1B3R2/2r5/pn1k3K/3br1R1 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 Kf2 Kd7 Kg2 Kd6 d4 f5 e4 a5 h4 b3 b6 a4 b7 f3+ Kh2 g6 h5 f2 h6 f4 h7 a3 Bd2 b2 Bh3 f1B Nf3 Nf6 Ng5 f3 Ne6 f2 Rg1 Bg2 Qe2 Nc6 Nc3 b1N b8R a2 Rb7 Na3 Raf1 Rg8 h8R Nc4 Rh5 N4e5 Be3 Nf7 Qb2 Bd7 e5+ Ke7 Bd2 Ra3 Rg5 Qa5 Rf5 Ncd8 d6+ Ke8 d5 Ba4 d7+ Ke7 Be3 Bd1 Ba7 Bh6 Rf4 Re8 Re1 Bf8 Ree4 Qc5 Ra4 Bh6 Ra5 Bh1 Ne4 Rc3 Nc7 Qb5 e6 Bhf3 Ng3 Kd6 e7 Ke5 d6 Qc5 Ne4 Kd4 Nd5 Kd3 Ne3 Qg5 Nd5 Rc5 Qe5 Rc3 Ng3 Kd2 Nf5 Ne6 d8N Be4 Nc6 Ned8 d7 Bf8 Ncd4 Bg2 Rh1 Bgf3 Nd6 f1N+ Kg1 g3 Bf5 g2 Ne6 Ne3 Kh2 Nc4 Rg1 Nc6 d8B Nb2 Bdb6 Ncd8 Bc5 Be4 Bb4 Bef3 Rf1 g1B+ Kh3 Bb6 Kh2 Bh6 Rh1 Bc5 Rg1 Rf8 e8B Bg2 Ba4 Re8 Bb3 Be4 Nb5 Bcf8 Nd6 Re7 Nb6 Bc6 Nd5 Re8 Rd7 Ba8 Rb7 Re7 Nd4 Qg4 Nb6 Nh8 Qb5 Kc1 Bg8 Re1 Qe5 Kd2 Ne6 Qg5 Nd5 Nhf7
1N4R1/1QRB4/3NrNn1/qr1qB2K/pn5R/r2R2B1/pq1B4/3rnrk1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 a5 e5 g3 exf4 a6 f3 Kd2 f2 Ra4 bxa6 Ra3 a5 Ra1 a4 Ra3 g5 Bg2 f4 Bf1 Bd6 Ra1 Bb7 Qe1 Bf3 Qd1 Bg4 h3 f3 Nc3 Bf4+ gxf4 Bf5 Nb1 g4 Na3 g3 Nb1 Bg4 hxg4 Qc7 Nh3 Qb6 Ng1 Qd8 c4 Ke7 e4 Kf6 b4 d5 f5 Kg5 b5 Kf4 g5 h5 b6 a5 f6 g2 g6 Kg3 c5 a3 c6 h4 b7 a2 f7 a4 f8B h3 e5 d3 Ke3 d2 c7 h2 c8R Qe8 e6 Qd8 e7 Rh5 e8N Qa5 g7 Ra6 Na3 Ne7 g8R+ Ng6 Bg7 Nc6 Nb5 Nb4 Qb3 d1R Rc7 d4+ Ke4 d3 b8B d2 Nf6 Rh3 Kf5 Re6 Kg5 Rde1 Bh8 d1R Bd2 Rb1 Qd5 Red1 Qb7 Rb2 Bd3 f1Q Ne2+ Kf2 Nd4 g1N Nc6 Qe2 Bf5 Kg2 Rb1 f2 Nd6 f1R Rc1 Rhe3 Rc3 Nf3+ Kh5 Qf2 Rd3 Ne1 Nh7 Rb3 Be5 Ra3 Bg3 R3e5 Nf6 Rb5 Be5 Re7 Bd7 Re6 Ba7 Qd4 Bb6 Qa1 Bf2 Qb2 Bg3 Kh3 Rg1 h1Q Nb8 Qd5 Rh1+ Kg2 Rh4 Kg1
1N4B1/R4R1R/1q4p1/b1p4r/pNBk4/NQn2R1B/1rKb2n1/1r1nB1b1 w - - 0 1 illegal: No possible last move, all moves rejected
6nr/bN1B1RBp/knr3R1/N1q1RBp1/6N1/1qBq1n2/1b1p4/R1Q4K w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 b5 axb5 Bb7 h5 Be4 g3 e5 Rh3 exf4 Rh1 Bg6 hxg6 fxg3 b4 d5 e4 Kd7 c4 Kc7 e5 Kb6 e6 a5 g7 f5 c5+ Ka7 b6+ Kb7 e7 a4 e8N g2 Kf2 f4 c6+ Kc8 c7 Kb7 c8B+ Kc6 b7 Kb6 b5 a3 Nd6 a2 Nd2 d3 Bf5 f3 Nh3 g1N Nb3 d4 Bb2 d2 Bc3 d3 Qc1 d1Q Na5 Nd7 b8B d2 Ndb7 Ngf6 g8R Ra6 Bbe5 Be7 Rg6 Bc5+ Kg3 f2 Kg2 Ka7 Bed4 Ng8 Bg7 Qc7 b6+ Kb8 Rh2 Nf3 Kh1 Qb3 Bb5 Kc8 Rg2 f1Q+ Rg1 Qc6 Nf2 Qd3 Rf1 Bd4 Re1 Qc5 Ng4 Kb8 Re5 Be3 Rb1 a1B Ba4 Bb2 Ra1 Ndf6 Bad7 Nd5 Nd8 Bg1 b7 Ka7 b8R Rc6 Ndb7 Ka6 Rf8 Nb6 Rf7 Bh2 Ree7 Bb8 Re5 Ba7
3r1q2/2B1k2p/N1n3Rp/5p1b/r2NbB2/n3RqNB/Nn1Q1K1B/3R3b w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 exf4 b4 c5 c4 Be7 h4 Bf8 d4 cxd4 c5 Bd6 h5 Bc7 h6 Bb6 cxb6 gxh6 e4 a5 g4 d5 e5 f5 b7 a4 e6 d3 e7 d4 b6 f3 g5 d2+ Kf2 a3 b5 a2 g6 d3 g7 Nf6 g8N Kf7 e8R Nc6 b8B Bb7 Bc7 Nh5 Nf6 Nf4 Bh3 Ra4 Re3 Qf8 Ne4 Ke7 Ne2 Rg8 Qe1 d1B Rg1 d2 Nbc3 Rh8 Rb1 a1N Nd4 Nc2 Rg6 Na3 Na2 Bc2 Ra1 d1B Ng3+ Be4 Qd2 Ba8 b7 Nd3+ Kg1 Nb2 b8B Rg8 b6 f2+ Kf1 Bh5 b7 Ra5 Ba7 Ra4 b8N Rh8 Na6 Bb7 Bab8 Ba8 Rf3 Bb7 Ke2 f1Q+ Ke3 Qd1 Kf2 Rg8 Re3 Qg4 Be5 Qf7 Bbc7 Rd8 Bf4 Nbc4 Bb2 Qf8 Bc3 Nb2 Rd1 Ne5 B3a5 Bh1 Bb8 Bbe4 Bac7 Nc6 Nge2 Rd5 Bh2 Rd8 Ng3 Na5 Bf4 Nc6 Bbc7 Qf3+
1b6/qp2Q1N1/3RRp1N/K3nn1b/NBN4n/1r1Rq2k/B2B1pqr/7B w - - 0 1 legal: proof: c4 e5 b4 d5 cxd5 a5 Bb2 axb4 Ba3 Bc5 Bc1 Bf8 g4 h5 f4 exf4 a3 bxa3 gxh5 Bd7 Qc2 Bf5 Qd1 Bc8 h4 Kd7 e4 c5 d4 g5 Kd2 a2 Kc3 g4 h6 f3 d6 Ke6 d7 c4 e5 Kf5 e6 g3 h7 Kg4 d5 g2 h5 Bc5 h6 Ne7 d6 Bd4+ Kb4 c3 Qe1 f2 Nf3 g1N Ne5+ Kg3 Bc4 c2 Rh3+ Kg2 Rd3 Ne2 Nc3 Rg8 h8B Ba7 h7 Qc7 d8N Ng1 d7 Nf3 Bh6 Ng6 e7 c1Q e8B Nd4 Ne6 Nh4 d8R Qc6 Rd6 Nd7 Qe2 Qg5 Re1 a1Q Ba2 Bb8 Nc4 Ra3 Na4 Qgc1 Qe3 Rb3+ Ka5 Rg4 Be5 f6 h8N Rg3 Bh5 Rh3 Ng7 Rh2 Bf3+ Kh3 Bh1+ Qf3 Re2 Qf1 Nf7 Qg2 Bef4 Qb2 Qe7 Qa1 Ree6 Ne5 Bc1 Qfg3 Bhd2 Qe3 Bb4 Bd7 Nh6 Be8 Qf8 Ndf5 Qf7 Qd4 Qe7 Bh5 Bcd2 Qa7+
1K3Bn1/3N1nN1/Rp2bQ1r/p1q1N3/2p2n1R/B6N/r1Bq3R/2Rnqk2 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 b4 a6 b5 Bc5 Nf3 Bd4 Ng1 Ba7 b6 Nc6 bxa7 Nb4 Ba3 Nxa2 Bb2 Bd7 Bc1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g4 f5 d6 c5 d7 b6 Kd6 h3 g5 f3 d5 h2 g6 f2 g7 Ne7 g8N f4 Nf6 Nc3 e4+ Ne2 e5 h4 e6 h3 Nd2+ Kd3 Bg2 f1Q Be4+ Ke3 Nc4+ Kf2 Bc2 Qe1 Qd4+ Kg2 Bb2 f3 Rc1 Ng8 e7 f2 e8N f1N Ng7 Nd2 Qh4 Rh6 Ne5 c4 Qf4 Rb8 a8R Nf3 Kc6 Ng5 d6 Qb4 Ra7 Qf8 Kc7 Nf7 d8R Be6 d7 Ra8 Kb7 Qfc5 Rf8 Ng5 d8B Qc3 Nfd7 Qd2 Rf5 Nf7 Bc7 Ng3 Qh4 Ne2 Rh5 Nf4 Qf6 Kf2 Rh4 Kg2 Ngf3 Kf2 Ng5 Ke2 Rhf1 h1N Bd6 h2 Bf8 Nf2 Nh3 Nd1 Rg1 h1Q+ Rg2+ Qf2 Kc7 Qhe1 Rh2 Kf1 Kb7 Rc8 Ra8 Rc5 Kb8 Ra5 Ra7 Ra2 Bba3 a5 Ra6 Qc5
R7/N1R1Nr2/4K3/BqpBbqB1/qq4q1/3k3B/p2p2bb/Q1rN1NR1 w - - 0 1 illegal: No possible last move, all moves rejected
5qqN/pr6/1Bb2p2/N1q4K/3pk1N1/NnRRBpB1/B1rR4/1Qr1b3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 h4 gxh4 b4 e5 c4 exf4 c5 b5 cxb6 Bh6 a5 Bg7 b5 Nc6 a6 Bf8 Ra4 Na5 Ra1 Nb7 axb7 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 b8N d5+ Kh5 d3 g4 d4 e4 h3 g5 d2 b7 f6 g6 h2 g7 f3 b6 h6 Ra3 Bh3 Rc3 Qc7 Ne2 Qd8 Nf4 Qe7 Na3 Bd7 Bc4 Qc5 Ba2 Ne7 g8N Rh7 Qb3 d1Q Be3 Qc1 Qb1 Nc6 Rd1 Na5 Rdd3 Nb3 Rd2 Qg1 Ng6+ Ke6+ e5 Kd5 e6 Bc6 e7 h1Q+ Rh2 Qhg2 Nh8 Qg7 e8R Be7 Rc8 Qf8 Rd2 Qg2 Rcd3 Ke4+ Kh4 h5 Nh6 Qgg8 Ng4 Qa5 Rc7 Bb4 Rc8 Qac5 Rc7 Bd7 Nc6 Rc8 Na5 Bc6 b8B Bc3 b7 Rf7 Rd7 Bb4 Bg3 Rc7 Re2 Be1 b8B Rc8 Rd6 Rb7 Red2 Rcc7 Kh3 Rc8 Bc7 h4 Bb6 Rcc7 Kh2 h3 Rd5 Qcd6 Rc5 Qdd5 Rcc3 Qdc5 Bgf2 Rc8 Kg3 h2 Kh4 Rcc7 Bg3 h1R+ Nh2 Rg1 Ng4 Rg2 Rd1 Rc2 R1d2 Rc1 Qb2 Be8 Qb1 Qcd6 Rc6 Bd7 Kh5 Qb4 Rd6 R7c2 Rc6 Qbd6 Rc4 Bc6 Rcc3 Qc5+
2NK3N/pb1B2p1/pR1Rn3/1q6/R1B1pQbp/1b3r2/3q1b1N/2N1BB1k w - - 0 1 illegal: No proof kernel
2Bk2qq/nr4qN/R4N1N/1nBrqB1b/1N4Qn/2bn1q2/1R4nK/R3R3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 f5 Kg2 d5 e4 h5 c4 h3+ Kh2 h4 b4 a4 e5 d3 c5 d4 c6 f3 b6 a3 b5 d2 c7 a2 g5 d3 g6 f2 g7 f4 b7 f3 e6 Nc6 b8N Rh5 e7 Na7 b6 Rd5 b7 Nh6 g8B Bg7 Bb2 Bc3 Bh7 Bg4 c8R Bh5 Rc7 Nf5 Qe1 d1Q Ba3 d2 Nd7 Rb8 Bb5 f1Q Qe6 f2 Qe3 Qde2 Qg3 d1N Bc5 Qe5 Ba6 Qfe2 Na3 Qf3 Ne2 f1N+ Kg1 Nf1e3 Qg4 Qc8 Rc6 Ng2 Nf8 Qce6 Nc2 Qg8 Ned4 Qeg7 Rb1 a1Q Nb4 Qb2 Rb6 Qbe2 Ra1 Qee5 Ng6 Kd7 e8N Kd8 Nf6 Nf2 Nf8 h2+ Kf1 Nd6 Bf5 h3 N8h7 Ndb5 Rg1 h1N Re6 Rc8 b8R h2 Rbb6 Ra8 Bc8 Rb8 Rba6 Rb7 Reb6 Qfe4 Re1 Nd3 Rea1 Nhf2 Re1 h1Q Rea1 Qh4 Rh1 Q4f4 Kg1 Qf3 Re1 Ndf4 Rea1 Qhg5 Kh2 Nh4 Rhe1 Q5h6 R6a2 Qee8 Rb2 N2d3 Rba6 Qee7 Be4 Q7h8 Nf5 Q6g7 Nh6 Nfg2 Bef5 Qe5+
qRbB2k1/rN3rq1/R3K3/B2Bn1Rr/5N2/1N1rq2B/N1q1r3/Q1b1n2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 d5 e4 f5 c4 Kf7 b4 h5 g4 d3 g5 d4 b6 a4 e5 a3 b7 d2 c5 h3 c6 h2 c7 h4 b5 h3 b6 d3 Bb2 a2 Bg2 Qe8 Qe1 d1R Bf1 d2 Bg2 Nd7 b8R Bh6 b7 Ngf6 g6+ Kg8 g7 Ng4 e6 Nc5 e7 Nd3 Nc3 Ra7 Nge2 Qa4 e8N Qc2 Rf1 h1Q Rg1 h2 Nd4 Bg5 Qe5 Rh5 Nb3 Bh6 Nd6 Ne1+ Ke2 Bg5 Bh3 Qc6 Ba3 h1Q Bb4 Qd7 Qd4 Ne5 Ba5 f3+ Kf2 Qd8 Kg3 f2 Qa4 f1R Qd4 Be6 c8N Rf2 Nb6 Bc8 Nbd5 Re2 Nf4 Bh6 Rb1 a1Q Na2 Qe8 Ra8 Qd7 b8B Qd8 Rg2 Qg1 Nb7 Qe3+ Kh2 Qd7 Bbc7 Bg5 Bd8 Qe8 Nd3 f4 Qc3 f3 Kg3 Qe7 Nf4 Qf8 Rb8 Qab2 Ra1 f2+ Kh2 f1Q Qd4 N1f3+ Kg3 Qh1 Qc3 Rg1 Qd4 d1R Qc3 Rd3 Qd4 Nd7 Kg4 Rgd1 Qe5 Qfa3 Kf5 Ne1 Ke6 Bh6 Rg5 R1d2 Kf5 Rd1 Qc3 Ne5+ Kf6 Rd7 Ke6 R1d3 Bac7 N1f3 Ng6 Ra8 Nb4 Qf2 Rg2 Bc1 Rg5 Qe3 Nf4 Nc4+ Qe5 Qaa7 Ra6 Ne1 Na2 Qbc3 N7c5 Qab7 Bb6 Ra7 Ba5 Qa8 Nb7 Qa1 Kf5 Kf7 g8B+ Kf8 Bd5 Qad4 Qc7 Qg7 Qc6 Ne5 Ke6 Kg8 Qc3 Rh7 Qd4 Rh5 Qa1 Rf7+
1R2N1N1/k7/qRqB2q1/q1BbnRb1/N1Br1qr1/6n1/bR1QNK2/2n3n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 a5 e4 h5 b4 d5 g4 Kd7 e5 Kc7 b6+ Kb7 b5 f5 e6 h3 e7 a4 e8R a3 g5 h4 g6 f3 g7 h2 c5 f2+ Ke2 a2 Re5 d3+ Kf3 d4 Nc3 d2 Bd3 h3 Bf1 f4 Re7+ Nd7 Nb1 d3 Qe1 d1N Be2 f1Q+ Qf2 d2 Re6 Ne7 g8N Nc3 Rg6 d1Q Bd2 Qc2 Nh6 Ra4 Bc1 Nf5 Bc4 Rg8 Ba3 Be7 Rc6 Ne2 Bb4 Nfg3 Nc3 Bg5 Rb1 a1N Rb2 Nb3 Rg6 Kb8 b7 Qa5 c6 Nbc1 Bc5 Qb1 Rf6 Qg6 Rf5 Rb4 Na4 Rg7 Nb6 Ka7 b8R Ra4 c7 Ba6 Ba2 Rd4 Ng8 Bc8 Bc4 Bb7+ Kg4 Bd5 Qe3 f3+ Qf4 Ne4 Qd2 f2 Kf3 Bf7 Qe3 N4g3 Qd2 Nf4 Ke3 Ne5 Ne2 Be6 Rg1 h1B Rg2 h2 Na4+ Qb6 Rg1 Bhd5 Rg2 h1Q Rh2 Qf6 Rh6 Qfg2 Rg6 f1Q Rh6 Qh5 Rg6 Qfh1 Rh6 Qe4+ Kf2 Qhg6 Rh8 Rh7 Rb7+ Ka8 c8N Bc6 Bd5 Qh4 Nh6 Qa5 b6 Qd3 Rd8 Qda6 Ng8 Qg4 Ba2 Rh4 Rf8 Bb3 Re8 Qe6 Nd6+ Qc8 Re6 Bcd5 Ne8 Bbc4 Rbe7 Kb8 b7 Qd7 Reb6 Qdc6 Rc7 Ka7 Rc8 Bb3 Rb8 Nh3+ Ke1 Ng1 Kf2 Bc2 Bc4 Bb1 Rd8 Ba2 b8B+ Ka8 Bc7+ Ka7 Rdb8 Qe4 B7d6 Rg4 Rf4 Qef5 Rf3 Qe4 Rf5 Qf4+
1b2n2r/r4RN1/1B1n1N1r/1QNnR3/2b5/1K2B1qn/2RNB2b/1R1r1qrk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 g5 a5 g6 f3 b6 a4 b7 h3 g7 f2 c5 h4 c6 a3 c7 d3+ Kb3 h2 b5 h3 b6 f4 Qc2 d4 Qc6 a2 Qc4 f3 Qa4 d2 Ne2 d1R Ba3 d3 Qd7 d2 Kb2 Bd6 Qe8+ Ne7 g8R Na6 b8N Bf5 c8N Qc7 b7 Ra7 Nd4 Kf4 e5 Bd3 e6 Nd5 Rf8+ Kg3 Be2 Kg2 e7 f1N Rf7 f2 Nf5 Ng3 Kb3 f1Q Qd7 Ne4 e8R Bf4 Nce7 Nd6 Bb4 Rc1 Bc5 d1R Bb6 Qc3+ Ka4 Nac7+ Na6 Qg7 b8B Qg3 Rc8 Nce8 Nd2 Be5 Rb1 a1B B8c7 Bf4 Ka3 Bae5 Kb3 Ne4 Qb5 Rc6 Rd8 Qe3 Ba5 Qfg1 Ng7 Rch6 Bb4 Bg3 Bca5 Bb8 Bg4 N4d6 Rc8 Qgf2 Rf1 h1N Rc2 h2 Re1 Qf1 Bc5 Nf2 Ng8 h1R Bab6 Bh2 Nf6 Qg3 Re5 Rg1 Be3 Kh1 Be2 Nh3 Nc5 Bc4+
2k1K1b1/6bn/1Qn1r2q/NbRqr1n1/6N1/4b2r/B2RNRN1/BbrR1B2 w - - 0 1 illegal: No possible last move, all moves rejected
2q1BNbB/r3r2K/2n4R/5rQN/nbB1Rrqq/5b1B/4N3/R2bNb1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 d5 c4 a5 b4 f5 b6 d3 e3 d4 b5 h3 b7 a4 g5 a3 c5 d2 g6 f3 g7 f2 b6 h2 c6 f4 c7 d3 Qa4+ Bb4 Bh3 d1Q+ Ne2 Kf3 e4 f1R e5 a2 e6 d2 e7 Nf6+ Kh6 Ra7 g8N Nd5 e8B Nc3 Qa3 Be6 c8B Bf7 Bhd7 Kg2 Nf6 f3 Ng8 f2 Qb3 Nc6 b8R Na4 Be6 Re7 Nf6 Rf8 b7 Qc7 Kg7 h5 Na3 h4 Kh7 h3 Nh5 Qd7 Qc3 Qc2+ Qd3 d1B Bc4 Qg4 Bb2 Qc1 Qg6 Qc3 Rc1 a1R Ra8 Qc2 b8N Qf5 Bh8 Qe6 Bb7 Qc8 Nd7 Nc3 Rc2 Be6+ Ng7 Rf5 Ra6 Bf7 Ng1 Ra2 Qg5 Ra1 Nf3 Ne5 Nb1 Ra5 Rc1 Na4 Re6 Ra7 Bbd5 Nc6 Nc3 Re1 Re3 f1B Ra1 Re2 Re6 Re4 Nf8 Ref4 Be4 Bfe2 Re1 h1B Rh6 h2 Nh5 Bd3 Re3 Bf1 Ne1+ Kg1 Re2 Bhg2 Bf3 h1Q Re4 Qhh4 Ne2+ Kh1 Rd6 Qgg3 Bg4 Bf3 Bh3 Qgg4 Rh6 Bg8+
nq1r2R1/N1r1Nr1B/NB1b1krb/2q5/B7/bB1K1n2/1R2N1b1/1RnQ3r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 g5 c4 f5 h4 a5 b4 d5 h5 f3 e5 a4 b6 d3 b5 a3 c5 a2 c6 f4 h6 f2 h7 d4 b7 g3 e6 g2 b6 g4 c7 g3 Nh3 g1Q Bb2 f3 Qa4 g2 Nf4 Ra6 Rh4 Nh6 Qb3 Nd7 b8N Nf5 b7 Kf6 e7 Bh6 e8B Nb6 Bg6 Na8 Rh2 Nh4 Be8 Bh3 Be2 f1R c8B f2 Bcd7 Rc1 Bc3 f1R Bb4 Rc7 Nc6 Qb8 Bf7 Rd8 Qd1 Nf3+ Kc1 d2+ Kc2 Qf2 h8R g1B Nc3 Bg2 Rb1 a1B Rg8 Bb2 Ng6 Ba3 Nge7 Rb6 Na7 d3+ Kb3 Qd4 Ba4 Qc5 Bc4 Rbd6 Ba5 Bge3 Be6 Bef4 Bb6 Rdc6 Bf5 Bd6 Bh7 Rh1 Bf1 Rf8 Ne2 Rf7 Qc1 d1R Qc2 Qf8 b8N d2 Na6 Qb8 Qd3 Rc1 Qd5 d1N Qd2 Nc3 Qd1 Bh3 Rf2 Na2 Rh2 Rc4 Rhg2 Rd4 Rf2 Nc3 Kc2 Bg2 Bb3 Bh2 Ba4 Rd8 Bb3 Bd6 Kd3 Bh3 Rh2 Na2 Bg2 Nh4 Bgd5 Bg2 Ba4 Nf3 Bc4 Rg7 Bcb3 Rg6 Nec8 Rf7 Ne7 Rc7 Nf4 Bh3 Rhb2 Bg2 Ne2 Nc1+
K1Nr1RRn/b1Bk1n1b/1R2b1B1/nn6/4q1n1/2NB3b/N6Q/BrN2qr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Be6 b7 Nh6 g8B Nf7 b6 Nd7 b8B Nde5+ Kd2 d3 Ke3 d4+ Ke4 d2 c7 d3 c8R Ng6 b7 Kd7 e8N Bc5 Qe2 d1B Be3 d2 Nd6 Qe7 Rf8 Ba7 Bh7 Rg8 Bd4 Ngh8 Bc7 Rd8 Nc3 Rg7 Rb1 a1N Bf5 Nb3 Bg6 Na5 Nc8 Rg8 Rb6 Bc2+ Qd3 d1N Nge2 Qb4 Rg1 h1N Nc1 h2 Be2 Bb1 Qc2 f1B Bd3 f2 Rg5 Bfh3 Qa2 Beg4 Kd5 f1Q Qg2 Nhf2 Qg3 h1R Qh2 Qe7 Bg7 Nd6 Kc5 Qe4 b8N+ Ke6 Na6 Kd7 Bf6 Ndf7 Nb4 Be6 Nba2 Ng4 Kb5 Rg1 Ka6 Rg7 Rg8 Rh7 Rf5 Rh5 Rf3 Rb5 Rf2 Bc2 Bg7 Rb1 Bd4 Ng5 Rff8 Ngf7 Bde5 Nb2 Bf6 Nbc4 Bg7 Na3 Bd4 Nc6 Kb7 Nb5 Ka8 Na5+ Nd5 Qee1 Ba1 Qh4 Ndc3 Qh7 Bc4 Bcf5 Bd3 Qh4 Bh5 Bh7 Bhg6 Qe7 Bg3 Qb4 Bc7 Qe4+
rRR4q/1K3N1N/1RbN3B/2B1bq2/rnrb1nQq/NB1k1n2/4b3/1r2R3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kc4 b4 h5 e3+ d3 g5 f5+ Ke5 a5 g6 d5 c3 h3 g7 h2 b6 d4 b5 a4 e4 a3 b7 f3 b6 f4 Bb2 h4 Bh3 a2 Ne2 d2 Qf1 d1R Ba3 f2 Ng3+ d3 Qg2 f1N Bc5 d2 Be6+ Kd3 c4 h3 Nf5 f3 Nh6 f2 Qg4 Bd7 Kd5 Qh4 e5 Rc1 Na3 d1B Rb1 a1B Nf7 Nc6 b8B Ra4 b7 Nd2 Rb6 Bd4 Re1 h1R Bbd6 f1Q b8R h2 Be7 Bc8 Bg5 Bb7 Bh6 Nge7+ Kd6 Qfh3 Kc7 Ng6 g8N Be2 Nf6 Nf3 Nh7 Bg7 Bd5 Rc3 e6 Nb4 e7 Bc6 e8N Bge5+ Ned6 Nf4 Be6 Rf1 Bd5 h1Q Be6 Be8 Kb7 Bb5 Bd5 Bc6+ Kc7 Qg1 Rd1+ Nd2 Qc8 Qg8 R8b7 Q3g3 Qg4 Qh5 Ra1 Na2 Bb4 Qgh4 c5 Nf3 Bb3 Bd5 c6 Qf5 Bc5 Rcc4 Rc1 Qg7 Rb1 Rha8 Rb8 Rfc1 Kb7 Qh8 Ra1 Nb4 Rb1 Be6 c7 Bd7 c8R Rd1 Rb2 Ra1 Rb1 Bb5 Rc1 Rb1 Re1 Bc6+
3BBk2/R1b5/2rn1Bbr/1q1NN3/1r2n2Q/4B1RN/R1q4r/1qqnK1Nb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 a5 g4 f5 b4 h5 c5 a4 c6 d3 g5 a3 c7 d2+ Kf2 d4 e5 h3 b6 h2 b7 a2 b5 f3 g6 f4 e6 h4 e7 d3 b6 h3 g7 Qd7 Na3 Nf6 g8N Ra6 Nc2 Nc6 b8B Nd8 b7 Qb5 Ne3 Bf5 c8N Rc6 Qe2 d1N+ Ke1 Rh6 Na7 Ne4 Bc7 Bg6 b8B Nb7 Ng4 Nbd6 Bd8 Bg7 Nf2 Be5 Nf6+ Kf7 Rb1 a1Q Rb3 Qb1 e8R Kg7 Re7+ Kf8 Be3 Qc2 Bg2 d2+ Kf1 Qc1 Qc4 Qb1 Nd5 Qc2 Ng4 f2 Ke2 f1R Nf2 Qb1 Bf3 Qc1 Bh5 Qb1 Ra3 Qc1 Ra2 f3+ Kd3 Bf4 Rb7 Be5 Bbc7 Bg3 Bf6 Bf4 Bcd8 Be5 Ng4 f2 Ke2 Qc2 Nf3 Bg3 Rg1 h1R Re7 Bf4 Rg3 h2 Ng1 Qbb1 Nb5 Qcc1 Nd4 Qb5 Nh3 Rfg1 Kd3 f1Q+ Ne2 Rg2 Ne5 Rhg1 Bdb6 h1B Bd8 Rh2 Rea7 Rgg2 Rf3 Rg4 Rg3 Bh7 Bf7 Bg6 Be8 Qf2 Beb6 Qfc5 Neg1 Qcb4 Bf2 Qbb1+ Ke2 Be3 Kf1 Bb6 Be3 Bc7 Nd3 Nef2 Qa4 Rb4 Ke2 Nfe4+ Kf1 Qb7 Ne5 Qb5+ Nc4 Nb2+ Qd1 Nc8 Rg4 Bf4 Qe1 d1Q Rg2 Qb3 Ke2 Bb8 Qh4 Nd1 Ke1 Q3c2 Rg3 Ncd6 Ne5 Bc7
2Q2qk1/b2q4/1NN3n1/3nbrNr/KR1Rq1B1/3RnB2/2B1N1b1/1r2B1qr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 a5 c4 h5 Kc2 d3+ Kb3 f3 c5 f2 c6 a4+ Ka3 h3 e5 d2 g5 f4 c7 h4 b6 f3 b7 d4 Nc3 d3 Nge2 h2 Rg1 h1R Bg2 f1R Qc2 d1Q Bd2 f2 Bf3 h3 Rg4 h2 Ne4 Nf6 g6+ Kg8 e6 Nbd7 b8N Ne5 e7 Rh5 e8B Bb7 c8N Bc5 g7 Ba7 b5 Nd5 b6 Qd7 Be1 d2 Nc6 Rb8 Ng5 Ng6 Rd4 Qb1 Ra2 d1N Rd3 Ba8 b7 N1e3 Nb6 Qa1 Qc4 Qd4 Rad2 Qe4 Kb2 a3+ Kb3 a2 Ka4 a1B Rd1 Nh4 Bg6 Be5 Rd4 Rf8 R1d3 Rf5 Qc3 Rfg1 Bg4 f1Q b8R+ Rf8 B6f5 Ng6 Qc5 Qff4 Bf3 Rf1 B5g4 Qff7 Qc4 Qfe8 Qa6 Rf5 Qc8 Rfg1 Nc4 Qf8 Rb4 Rf1 Nb6 Rhg1 Bh4 Rb1 Be1 h1Q Nh3 Kf7 g8B+ Kg7 Bf7 Qg2 Be8 Rh1 Ng5 Qg1 Bf7 Ndf4 Ba2 Nfd5 Bb3 Kg8 Bc2 Qf4 Be4 Nc7 Bg2 Qg7 Na5 Qd7+ Ka3 Bf3 Nc6 Ncd5 Ka4 Qe4 Nf4 Be2 B2f3 Bf1 Ne2 Bg2
2r2kBr/n4q2/1B1N1b2/rnbn3b/b1N2n1B/4N1q1/R1R3QR/1qN1B1K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 e4 h5 b4 a5 c4 d5 g4 h3 g5 d3 b6 a4 b7 f3 c5 f4 g6 h4 c6 a3 b5 a2 c7 d2 g7 h2 b6 d4 e5 d3 e6 h3 e7 Nc6 b8B Bg4 c8R Ra5 b7 Bh5 Qc2 d1N+ Ke1 f2+ Kd2 f3 Bc7 Nf6 g8N Nd5 b8B Nf4 Ba3 Nc3 Ke3 d2 Bb4 d1B Nh6 Na7 Ne2 Ncb5 Nc1 Rg8 Bd3 f1Q Ng4 f2 Bb6 Qe1+ Qe2 Ba4 Rc2 Qc7 Na3 f1N+ Kf3 Kf7 e8N Ne3 Nc4 Ned5 Qg2 Bc5 Bh7 Kf8 Ned6 Qf7 Bd2 Qh4 Be1 Qg5 B8c7 Qh4 Bd8 Qg3+ Ke4 Rh8 Bh4 Rg8 Nge3 Rh8 Rf1 h1R Rff2 h2 Bg8 Rf1 Rb1 h1Q Rbb2 a1B Ra2 Bf6 Rfd2 Qg5 Re2 Rf3 Rf2 Rg3 Rfe2 Rg4 Kf3 Qgg6 Kf2 Qh3 Nf5 Qg3+ Kg1 Rg5 Nfd6 Re5 Red2 Re8 Rf2 Rc8 Rf3 Q3g4 Rh3 Qg3 Rh2 Qd3 Bd8 Qb3 Bb6 Qb1
1R1N1KRb/b2BN3/1b3n2/Br1N4/2q3rB/4Rb2/2knq1nn/r1N1Q1qB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 d2 h5 g3 e3 f3 b6 a4 b7 f2 b5 g4 h6 a3 b6 a2 c5 g2 c6 g3 h7 Ra4 c7 Bc5 Nf3 g1Q Bc4 f1N Nc3 g2 Rh6 Qe7 Nh2 Na6 b8R Bb7+ Rc6 d6 Nf3 Nh2 Be2 Rg4 Qe1 d1N c8N f6 Rb1 a1B Ne5 Bd4 Ra8 Nc5 Bd2 Nb3 Nd3 Bb2 Nc1 Qe5+ Kc4 d5+ Kb4 Qc7 e4+ Ke5 Rb8 f5 Bf3 f4 Ne7 Ne3 Rg6 Nf6 Rgg8 Bc6 b7 Ba7 Ra1 d4 Ra3 d3 Ncd5 Kd4 e5 Qc8 Be4 f3 e6 f2 Bf3 f1Q Be4 Qgf2 Bf3 g1B Bh1 Ng2 Bg5 d2 Bh4 Na1 Re3 d1R Rg5 Rg8 h8B Re8 Rg8 Nb3 Bg7 Qa6 Bh6 Rd8 Bf4 Re8 Bc7 Qae2 Ba5 Rf8 Nf4 Bf3 Nfd5 Rd3 Kb5 Nd2 Kb4 Qc7 Kb5 Qf4 Kc6 Qe4 Kd6 Rb3 Rg5 Rb5 Rg8 Nh5 Kd7 Kc4 Kd6 Bh8 Kd7 Rff4 Ke8 Nf6+ Kf8 Qg3 Ng6 Rf5 e7 Rb1 e8B Ra1 Bd7 Kd4 Nb6 Rb5 Ne7 Q4d3 Nbd5 Qc4 Rd8 Qgf2 b8N Qff1 Re8 Bf2 Rc8 Qg1 Rd8 Bg3 Re8 Bc7 Rc8 Bcb6 Nbc6+ Kc5 Nd8+ Kd4 Ra3 Ke4 Rb8 Kd4 Nb3+ Kd3 Nc1+ Kc2 Rd3 Nde4 Re3 Nd2
1NqN2b1/5nqR/n2kB1r1/6B1/N3b1n1/2r1nBn1/1RBbQN2/2bK1Rn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 g4 a5 c4 h5 b4 d5 c5 f5 g5 a4 c6 h3 c7 a3 b6 h2 b5 h4 g6 d3 g7 h3 b7 d4 b6 f3 e5 f2+ Kd2 a2 e6 f4 Be2 f1Q Qa4 f3 Qc4 f2 Qc6 Rh6 Na3 Rg6 Qa4 Nh6 Rb1 a1B g8B Bb2 Qb5 Bg7 Bh5 Kd6 e7 Be6 e8R Qc8 Nc2 Ra3 Qc4 Na6 b8N Bf6 b7 Bg5+ Ne3 Rb3 Nf3 Bf4 Rg1 h1B Nc6 h2 Nh4 Be4 b8N h1N Bf3 Ng3 Nd8 Ne2 Re7 B6d5 Rg2 Ng1 Rh7 Ba3 Bf7 Be6 Be8 Bg8 Ba4 Nf7 Rh2 Bg5 Ng2 Bb2 Nf4 Ba3 Bb2 Qe2+ Kc1 f1N Ned5 Ng3 Nb6 Bh6 Qc2 Qe1+ Qd1 Qc3+ Rc2 Bg5 Qe2 Bb4 Ra1 Ra3 Bb3 Bh6 Na4 d2+ Kb1 d1N Nh3 d3 Nf2 d2 Bc1 Qd4 Be6 Rd3 Rb2 Qg7 Kc2 Be3 Nh1 Nf2 Bf5 Ng4 Nf2 d1N Be6 Bd4 Bg5 Be3 Bb3 Nc3 Rf1 Bc1 Be6 Nd5 Bf5 Bbd2 Kd1 Rc3 Be6 Ne7 Bb3 Qf5 c8B Nd5 Bc2 Qe6 Ra2 Qd7 Rb2 Qb7 Bf5 Qc8 Be6 Nde3+
1kNR1q1n/1n2N1r1/1R6/bbn3qB/N3bb1N/1r3Rb1/1Bp2KQ1/B1rB4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 Kc7 d4 a5 e5 f5 e6 h5 e7 h3 e8R h2 d5 h4 g5 f3 g6 h3 g7 a4 Na3 f2+ Ke2 c3 Bg2 f1R Rb1 c4 Bf3 c2 Be3 c1B Bg5 c3 Qd2 c2 Bh5 f4 Rb3 Ra7 Nb1 a3 Bf6 a2 Rf3 a1B Nc3 Na6 b6+ Kb8 b5 Bd7 d6 Ne7 g8B Nc5 b7 Ng6 Na4 Bc3 Bc4 Ba5 Ba1 Bc6 d7 Bd6 Re6 Qg5 d8B Re8 Be7 Nh8 Bef6 Rg8 Bfd4 Rg7 Bdb2 Ra6 Bd5 Rb6 Rg6 Re1+ Kf2 Be5 Qe2 Bcd2 Qf1 Rc1 Qg2 Be8 Be6 Bc7 Beg4 Bd7 Rg3 f3 Re6 Bdf4 Re8+ Ka7 b8N Nb7 Rd8 Be8 Nd7 Bcd6 Ne2 Bde5 Rg1 h1B Nd4 h2 Nf5 Bb8 Nh4 Ka8 Rd1 Ka7 Kf1 f2 Rf3 Bbc7 Ke2 f1N Rb8 Nd2 Kf2 Nb3 Rd8 Bb8 Rd6 N3c5 Rf6 Re6 Rh6 Re3 Ndb6 Rb3 Nc8+ Ka8 b6 Bb5 Rfd3 Bbd6 Bd1 Kb8 Rf3 Bc7 Qg3 Bg2 Rhd6 h1Q Rg6 Bgf1 Qg2 Bfd3 Re6 Be4 Rc6 Nd6 b7 Qh3 Ra6 Qhf5 Rb6 Qf8 Ne7+ Ka7 b8N Ndb7 Nc8+ Ka8 Nc6 Bce5 N6e7 Kb8 Qg4 Bh2 Qg1 Bef4 Qg2 Bhg3+
3bN3/1R4p1/N3B3/1q2Rb1k/3n4/Nrn1R1Kq/BBnQ1rB1/nN1br1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 c4 d5 Kf2 a5 h4 f5 e4 Kf7 Na3 Qb6 Nc2 Kg6 b4 d3+ c5 d2 e5 d4 c6 f3 e6 a4 e7 f4 c7 a3 Ne2 a2 Rh3 Nc6 Bb2 Ra3 Nc3 Nf6 e8B+ Kh6 h5 Nd5 Qe1 d1Q Qd2 Bf5 c8B Be7 Bf7 Bd8 Bd7 Qa5 b6 Re8 b7 Qc5 Rc1 a1N Nb1 Nc3 Ba2 Rb3 b8N Re3 b5 g3+ Kg1 g2 Kh2 f2 b6 f3 b7 Qb6 Na6 Qb5 b8R Kg5 h6 d3 h7 Kg4 h8N Nd4 Qe1 d2 Nf7 Re2 Rg3+ Kh5 Rb7 Re4 Be6 Re3 Be2 f1R Nd6 Re4 B2c4 f2 Nca3 Qf3 Ne8 g1N Rc2 d1B Bcd5 Rf4 Qe3 Re1 Re2 Qe4 Qd3 Rf3 Kg2 f1N Qd2 Ne3+ Kh2 Rf4 Rf3 Nec2 Kg3 Bb6 Rd3 Qh1 Re5 Rf2 Rde3 Bd8 Bg2 Qh3+
1NQ2KnB/Np2q2q/R5br/1N5r/Rn3bB1/1Rr4N/qB6/n1n1kn1R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 c5 a4 h5 d4 f5 a5 f3 g5 b3 e4+ Kb4 d6 h3 g6 h2 g7 b2 a6 f4 d5 c4 a7 h4 d7 c3 Ke6 c2 Kf7 h3 d6 f2 e5 f3 e6 Rh4 e7 Na6 e8N Rh6 Na3 Kc3 Nc7 b1Q Be2 Nb4 Na6 f1N Nb8 f2 Bg4 Nd2 Bb2+ Kd3 Qe1 f1N Nb5 c1N Ra4 Ndb3 Qe6 Kd2 Qe8 Qg5 d8N Bf5 d7 Qa2 Ndc6 Bd6 d8B Bf4 Kf8 Na1 Bdf6 Bg6 Qc8 Ke1 Bfe5 Nf6 g8R Rh5 Rg7 Ng8 Rf7 Rh6 Bh8 Qe5 Nd7 Rb8 a8R Qe7+ Kg7 Rh5 R8a6 Rh6 Nca7 Ra8 Qe8 Rc8 Nb8 Rc3 Qc8 Rh5 Nf3+ Kf2 Ng5 Ke1 Rg1 h1Q Rg3 h2 Nh3 Qf6+ Kf8 Qe4 Rd3 h1R Rg3 Qfe6 Rg1 Rh2 Rh1 Qd7 Rff6 Qh7 Rfd6 Rh6 Rd3 Qe3 Ng5 R2h5 Nh3 Rc7 Rda3 Rc3 Rb3 Qee7#
2nN2nn/R1npbK1b/R1B1NnB1/1N1Rb3/2Q1q1R1/1n1Brk2/7B/6nr w - - 0 1 illegal: No possible last move
n1q1NqRr/2qn2q1/2b2b1B/n1p4B/4N1bQ/R2N4/2kr1RN1/1R2K1Br w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 Kd4 g6 f5 e5 c5 e6 h5 b6 a5 g7 f3 e7 c3 e8N c2 d3 f2+ Ke2 f4 b7 f3+ Kd2 a4 b5 h3 b6 a3 Be2 f1Q Ra2 h2 Ra1 h4 Nh3 a2 Nc3 f2 Bg4 Qc7 Bh5 Ne7 g8R Nd5 Ne4 Bg7 Qe1 Bf6 Nf4 h3 Ng2 Nd7 b8R Ra3 b7 N5b6 Rb1 a1Q Ra8 Ra2 Ra3 Na8 b8B Qg1 Rb2 f1Q Qh4 Qf5 Ke2 Qgf1+ Kd2 Q1f4+ Ke1 Qfd6 Rb1 Qf8 Bh6 c1N Rf1 h1B Rf3 h2 Rf2 Qa7 Bbf4 Rd2 Bfg5 Qc7 Be3+ Kd5 d4 Kc4 d5 Nb3 d6 Kd3 Bd4 Kc2 Bde3 Na5 Bd4 Ne5 d7 Qc3 d8N Nd7 Nf7 Q3g3 Bde3 Qgg7 Ne5 Qfg4 Nf4 Bg2 Ned3 h1R+ Rf1 Bf3 Ng2 Bb7 Bg1 Bc6 Rf2 Qf5 N8d6 Qfc8 Ne8 Bg4 Qg3 Qff4 Qh2 Qfd6 Qh4 Qdf8
2r2B1b/bk4bR/R1NK4/1r1Rn2b/Q1B1b2b/N1N2n2/p1r1Nn1q/1B3R2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 d5 c4 Kd7 f4 Kc7 b4 g5 h5 e5 f5 a4 b6+ Kb7 f6 e3 Kd3 a3 h6 g3 c5 e2 h7 e1B b5 g4 f7 e4+ Kc2 e3 Kb3 e2 Rh4 a2 Na3 g2 Qd2 g3 Kb4 d3 Rd4 Bg7 f8R Qc7 Rf6 Nh6 Bb2 Rg8 h8R Ng4 Rh7 Nf2 Rfh6 Bf5 c6+ Kc8 Kc5 Ra5 Bc3 Be4 Qd1 d2 Qa4 d1R Bb4 Bc3 Rb1 e1B Bc4 Qf4 c7 Rd2 Ne2 g1B Rf6 Bb2 Nc3 g2 Rd3 Qh6 Kd6 d4 Ra1 Kb7 c8B+ Ka8 Rg6 Rc2 Bf5 Nd7 b7+ Ka7 b8N Ne5 b6+ Kb7 Rb1 Qh2 Nc6 Rb5 Rdd1 d3 Nd4 d2 Nde2 Rc8 Rgh6 Kb8 b7 Bh8 Ke6 Bg7 Bf8 Kc7 b8N Kb7 Nc6 Ba1 Rdc1 d1B Kd6 Bb2 Nf4 Bh5 Rd1 Nfg4 Nfe2 Bh4 Rd3 Ba7 Rd5 g1N Rf1 Nf2 Rf6 Bh1 Bfd3 Be4 Re6 Ngf3 Rg6 Rc1 Bb1 Rc2 Ke6 Nh3 Nb4 Ng4 Nd1 Nhf2 Rf6 Bbd4 Ndc3 Be5 Kd7 Bh6 Ra6 Bh8 Nc6 Nge5+ Kd6+ B6g7
rB2R2N/1n1bb1n1/6b1/1kNNR2Q/3R3q/3br1pR/1rb1n1r1/K2B2NB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 Kc2 Kd7 Kb2 f3 e4 g3 h5 g2 b6 Kc6 b7 f4 h6 a4 e5 g4 c5 d3 e6 f2 h7 a3+ Ka2 f3 e7 d2 e8R g3 Rh3 d4 Re1 d3 Qb3 d1R Qb2 d2 Re3 Nd7 b8R Nh6 Re7 Nf5 Nc3 Re1 Be2 d1B Bf4 f1B Re5 f2 Nd5 Bc2 Rd1 Qh4 Rd4 Be7 Bd1 Bfd3 Ka1 f1B Qa2 Rf8 h8N Ng7 Qc4 Bh7 Qe2 a2 Qg4 Bhg6 Qh5 Ra5 Ra8 Kb5 c6 Re3 c7 Nc5 Rb8+ Nb7 Ra8 Bg4 Re8 Rg8 c8B Bfd3 Bf5 Rf8 Be4 Ra8 Bef3 Bd7 Be4 Ka4 b5+ Ka5 b6 Kb5 Re6 Rf5 Bb8 Rf2 Re5 Rd2 Ne2 g1N Bh1 Nf3 Ng1 Rg2 Rde4 Nd4 Rf4 Nd6 b7 Ne2 Rd4 Bf6 Ba7 Be7 b8N Nb7 Na6 Rb8 Nc5 Ra8 Kb2 a1R Bb8 R1a6 Rg4 Rb6 Rd4 Ka5+ Ka2 Rb2+ Ka1 Kb5+
1r4br/N2nR3/1Nb1B1k1/R4n1R/3r2N1/p1QBqrb1/R4B2/Bbn1K1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 g5 c4 a5 e4 f5 b4 Kf7 b6 d5 h5 a4 b7 f3 b5 f4 b6 f2+ Kd2 d3 e5 g3 c5 f3 h6 d4 e6+ Kg6 e7 g2 e8N g4 c6 g3 c7 a3 h7 Bd6 Nh3 g1B Ra2 g2 Qe1 Nh6 Nc3 Be6 c8B Bg3 Nd5 Bg8 Nec7 Qe8 Nb5 Nd7 b8R Nf5 Rb7 Rb8 Na7 Qe3+ Kd1 d2 Bd3 f1B Nf2 Kg7 Rh2 Kg6 Ng4 f2 Rh5 Be2+ Kc2 d1R Qc3 f1R Bb2 Qe7 Ba1 Rf3 Rc7 Qe3 b7 Bf1 Nb6 Be2 Rc5 Rd2+ Kc1 Bd1 Ra5 Bc2 Na4 Bb1 Nb6 Nc5 Be6 Nd7 Be2 d3 Bf1 Rdf2+ Kd1 d2 Bd3 Rf4 Nh6 R2f3 Ng4 Re8 b8R Rd4 Ra8 Rb8 Re5 B1f2 Re4 g1N Re5 Ne2 Ra5 Rb7 Re8 Nc1 Re7 Rb8 Bb5 Bf7 Be2 Bg1 Bd3 Rhg8 h8B Rgd8 Bf6 Rh8 Bh4 Bg8 Qb3 B3h2 Bf2 Bg3 Bdc4 Be4 Bd3 Bc6 Kc2 d1B+ Kc3 Qe5 Kd2 Bc2 Qc3 Bb1 Kd1 Qf4 Ke1 Qe3+
2N1b1q1/1n1kN3/1r1rr3/B1bBR2r/2Kn2p1/2br1NBR/2b1R2R/1NQ4n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 a5 c4 g3 h4 g2 c5 g4 h5 f3 b6 f4 b5 a4 b7 a3 c6 f2 c7 a2 b6 f3 h6 Nc6 b8R Bd7 c8N Na5 e5 Ne7 e6 Nf5 h7 Bc5 b7 Ra6 e7 Rd6 Ne2 g1R Bg2 f1R Na3 f2 Be3 Re1 Qc2 f1N Nb5 N1g3 Rh3 Nh1 Bd2 Rb1 Nec3 Rge1 Rh2 Ree6 Qc1 Bc6 Bf3 Kd7 e8R Rb3 Rb1 a1B Rb2 Qg5 Be1 Qg8 Rbe2 Rb4 Nb1 Bc3 Ra8 Rb2 b8B Nb7 Ra3 Rb4 Nba7 Rb6 Ne7 Ba4 Nac8 Bb5+ Kc2 d3+ Kb3 d4 Bd5 d2 Bc7 d1R Bg3 Bc6+ Kc4 d3 Rb3 d2 Ra3 Rb3 Ba5 Rb6 Rb3 B3b4 Rbe3 Bc3 Re5 Nd4 Reh5 Rf1 R5h3 d1B Re5 Rf5 Ree2 Rh5 Re5 Qg7 Ree2 Rg8 h8N Bc2 Nf7 Rf8 Re5 Qg8 Ng5 Rf3 Ree2 Rd3 Nf3 Rhh6 Rf8 Rh5 Rf5 Kc7 Rg5 Be8 Rge5 Kd7
kN3N2/p1b1nnR1/3b2nr/r1B1RBq1/6bb/2BN2N1/2KQ1r2/1R2B1nn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 c4 f5 e4 d5 b4 Kd7 h4 Kc7 h5 Kb7 c5 f3 h6 g3 e5 f4 e6 f2 b6 g4 e7 g2 e8N g3 h7 d3 b5 f3 Na3 d4 Rh3 Bd6 Rh4 Qg5+ Rf4 Nc6 Nh3 g1B Ng7 g2 Nh5 Rb8 Nc2 Nce7 c6+ Ka8 c7 Nh6 Ne1 Nf7 Rb1 Bh2 Ng3 g1B Be2 f1R Ba3 f2 Bg4 Ng6 Bc5 Bd7 Kc1 d2+ Kc2 Rbe8 Bf5 Re5 Qc1 d1N Re4 Nc3 Qd2 Nd5 Nf4 Nde7 Ne6 Rd5 Re5 d3+ Kd1 Bc8 Nf8 Be6 Qa2 d2 Kc2 d1N Nd3 Nc3 c8R+ Kb7 Qb2 Ne2 Rc7+ Ka8 Qb4 Bc8 Qd2 Be6 Be4 Bg4 Bf5 Rd1 Rd7 f1N Rb7 Bf2 Rd7 Rg8 h8B Ng1 Bf6 Rh8 b7+ Kb8 Re4 Rh6 Bc3 Re1 Re5 Re2 Nh5 Bh4 Ng3 Nc6 Rc7 Rf2 Rd7 Nfh8 Rf7 Nce7 Rg7 Kc7 b8B+ Kb7 Bc7 Ka8 B7a5 Nf7 b6 Bc7 Ne4 Ng3 b7+ Kb8 Bab4 Nh1 Ng3 Bd6 Be3 Ra5 Bec5 Kc7 b8N Kb7 Qe2 Ka8 Be1 Qf4 Qd2 Qe3 Bc3 Qg5 Nf1 Bf4 Ng3 Bc7 Re2 Bfd6 Re4 Qf4 Re5 Qg5
2n1Bn1K/3R2N1/2R3b1/N2QBB1r/3q4/knrnrR2/BR1p1N2/q3brn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 c4 h5 g4 a5 e4 d5+ Ke5 f5 c5 d3 g5 h3 g6 h4 c6 h2 b6 d2 g7 f3 c7 a4 b7 h3 b3 a3 Bb2 f2 Bd4 f4 Ba6 f1N Bb5 f3 Be8 a2 Na3 f2 Nc4 Bf5 c8B Ra3 Na5 Ne7 Kf6 Ng3 g8B f1R e5 Ne2 e6 Rh5 Be5 d4 Rc1 a1N Rc6 d3 Bcd7 Nc8+ e7 Bh7+ Bf5 Qd4 Kf7 Nd7 b8R+ Qb6 Ra8 Qd4 Ra7 Bh6 Rac7 Nf8 Rd7 Bg6+ Kf6 Bf4 Kg7 Bg3 Bc4 Be1 Bg8 Rg5 Kh8 Rg3 Bd5 Re3 Bdf7 Kb5 b4 Nb3 Bd5 Ka4 b5 Qa1 b6 Qd4 b7 Qa1 Qc1 d1Q b8R d2 Qc2 Qd4 Qc5 Q1a1 Bc4 Rc3 Qd5 Re3 Nf3 Ng1 Ng5 Ra2 Rbb6 Ka3 Ne4 Rc2 Nf2 Rcc3 Rbb7 Nf3 Rg1 h1N Rg3 Ng1 Rf3 h2 Rb5 Ng3 Rbb7 Nh5 Rbb6 h1R Rbb7 Nc1 Rb2 Rh4 Ba2 Nb3 Bf7 Rh1 e8N Rh3 Ng7 Nf4+ Nh5 Nd3 Be8 Rg3 Ng7 Rg5 Bg4 Rf5 Bh3 Rg5 Bf5 Rh5+
6k1/q2NBN2/1B1bq2n/Bnqq1B1n/N1br4/p5K1/2n1RrR1/1Q1n1R1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 f5 c4 Kf7 g4 a5 e4 h5 c5 h3 c6 f3 c7 f4 g5 d3 b6 a4 b5 a3 b7 h2 b6 h4 e5 h3 Ra2 d2 Qe1 d1Q Qa5 d4 Bd3 Qb3 Bc4+ Qd5 Ne2 d3 Qe1 d2 Ng3 Be6 c8N Nc6 b8B Ra4 b7 Na7 Nc3 Nh6 g6+ Kg8 g7 Bd6 Nb6 Nb5 Bd3 Rd4 Ra1 Qc5 Bf5 Bc4 e6 Qa2 Rf1 h1Q e7 h2 Bc7 Qb3 b8B Qa4 Bd7 Qa7 Bf5 Rh7 Nd7 Rh8 Qe4 d1N+ Ke1 Qg1 Ba5 h1Q Na4 Qc8 Qd3 f2+ Ke2 Qha8 Be3 Qd5 Ne4 Qg5 Rh1 f1N Kf3 Ng3 Qb1 Nh5 Rf1 Qf6 e8R+ Qf8 Kg2 f3+ Kh3 f2 Ng5 Qca6 Nf7 Nf4+ Kg3 Qac6 Re5 Qe6 Bbc7 Qcd5 Bcb6 Qc8 Bed2 Qcc5 Re2 Rh7 Rh1 Rh8 Bdb4 f1N+ Kh4 Nfe3 Kg3 Nc2 Rf1 Bb8 Rh1 Qcc7 Be7 Qcc5 Qb2 Bd6 Rc1 Ng4 Qb1 Rh2 Rf1 Nh6 Rh1 Nb2 Rcf1 Nd1 Bg4 Kh7 g8R Rf2 Rg6 Qee5 Bf5 Qee6 Rf6+ Kg8 Rfg1 Ne1 Rg2 Nc2 Nh8 Rf1 Bg4 Nd3+ Rf4 Rf2 Nf7 Rf3+ Kh4 Rf1 Rf3 Nf4 Kg3 Qa6 Bf5 Qab7 Re1 Qa7 Rfe3 Rf2 Ref1 Nb2 Ree1 Nd1 Re2 Nh5+
N1rN2kB/1Kn1r3/8/1pRq3r/R3Q1q1/b2b2N1/1BrNBBqn/R3q2q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 Kf3 h5 Ke4 c5 g4 h3 a4 f6 d4 Kf7 d6 b3 Kd5 c4 e4 c3 e5 c2 g5 h4 a5 h2 e6+ Kg7 g6 h3 e7 f5 e8R b2 d7 f3 a6 f2 a7 f4 Be2 f1R Qd3 f3 Nd2 b1Q Re4 f2 Bb2 Qh4 d8B c1R Bb6 Ba3 Qc4 Na6 Kc6 Rh6 d5+ Nf6 d6 Rfe1 d7 f1Q d8B Qg4 Bf2 Bf5 Kb7 Rc8 a8N Qfg2 Qc6 Nc7 Ra4 Kg8 g7 Qd3 Qe4 Rc2 Be7 Qdf3 Bb4 Rh5 B4c3 Be6 Bcd4 Bc4 Be5 Bd3 Bec3 Kf7 g8N Qff5 Ne7 Qd5+ Nc6 Kf8 Ngf3 Kg8 Rf1 h1Q Nh4 h2 Nf5 Qhg1 Ng3 h1Q Rc1 Qgf5 Be5 Ng4 Bh8 Nh2 Ra1 Qg4 Rc1 Qdd7 Nd8 Qde6 Bf3 Re3 Be2 Qb3 Rfd1 Qe1 Ra1 Qf7 Rdc1 Qff5 Qf3 Re7 Qe4 Rc6 Rc5 Qe6 Rd5 Rc2 Rc5 Qd5+
2Br4/Q2R1K1k/5B1b/NN1r2rN/2n1Nr2/1q2b3/nq1Rbb1p/1B3BnR w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kg6 b4 h5 f4 a5 c4 d5 c5 e5 f5+ Kh7 f6 a4 g5 h3 b6 h2 b5 a3 b7 a2 f7 h4 c6 e3 Kf3 d3 b6 d4 Ke4 h3 c7 e2 Na3 e1B Qc2 d2 Qb2 d1R Qg2 d3 Qf3 d2 Bc4 Nc6 b8R Nh6 b7 Ra5 Bf1 Ng4 Nb5 Ne3 Ne2 Bf2 Nec3 Nc4 Bb2 Bg4 c8B Nb4 Qe3 Qf6 Qa7 Bh6 Ra8 Rf8 b8N Rd8 Nc6 Be2 Rc1 a1R Rc2 R1a4 Rb8 Qg7 Kf5 e4 Ke6 e3 Ne4 Na2 Rb7 Rb4 Ba1 Qb2 Rd7 Rba4 Nbc3 Rd5 Nb5 Rb1 Ke7 d1Q Rd2 Qdb3 Na5 Rc1 Bg2 Rg1 f8N+ Kg7 Ne6+ Kh7 Bf1 Rg4 Rg1 h1N Ng7 h2 Nh5 Ng3 Rh1 Rf4 Nc6 Ra5 g6+ Kh8 g7+ Kh7 Na3 Rac5 Na5 Rg5 Nb5 Rcd5 Qb6 Bg4 Qd4 e2 Qa7 Bf3 Ke6 e1B Ke7 Be3 g8B+ Kg6 Be6 B1f2 Bg4 Kh7 Bf5+ Kh8 Kf7 Ne2 Nef6 Ng1 Bb1 Qc1 Bd4 Qcb2 Be5 Be2 Bc3 Rh4 Ne4+ Kh7 Bf6 Rf4
2N1nR1N/1rkp1nn1/2N1nQr1/q3qN2/r1b2BBR/4K1b1/4R1Bb/r3B3 w - - 0 1 legal: proof: f4 c5 h4 b5 a4 bxa4 d4 e5 dxc5 exf4 Nf3 g5 Ng1 gxh4 Kd2 a5 e4 f5 b4 h5 g4 a3 c4 f3 b5 a4 c6 a2 c7 h3 e5 h4 e6 f2 e7 h2 c5 a3 b6 f4 b7 f3 g5 h3 c6 Ra4 g6 Rh6 g7 Nf6 g8R Na6 b8B Rg6 Be2 f1Q Rh8 f2 Kd3 Qe1 Bh6 f1R Ke3 Nc5 Bg7 Ne6 Qd4 Ba6 c8B Qda5 c7 Bc4 Nd2 Qe5+ Ne4 Q1a5 Qc3 Rb1 Nf3 Rb7 Rae1 a1B Nd4 a2 Bg4 Bb2 Rh4 a1R Rhf1 h1N Re2 h2 Nc6 Nf2 Bh6 h1N Bf4 Nd3 Bg3 Ba6 Be1 Ng3 Qd4 Bc4 Qd6 Rb6 Bb7 Ngh5 c8N Nhg7 Ba8 Rb7 Bc7 Qh2 Ng3 Be5 Nf5 Bg3 Qd4 Ne5 Qb6 Kf7 e8N Bd6 Bb8 Bc7 Ned6+ Kf8 Qb2 Nfe8 Nf7 Bd6 Nh8 Nf7 Qf6 Bde5 Ra2 Qb2 Rf3 Bh2 Rf1 Beg3 Bf4 Qbe5+ Kf3 N8c7 Re2 Ke8 Rff2 Qed5+ Ke3 Qd6 N6e7 Kd8 Rf3 Nce8 Rf1 Rbb4 Bg2 Kc7 Nc6 Qde5+ Kf3 Ned6 Bfd2 Bb5 Nfd4 Rbb1 Qf5 Nfd8 Bg5 Ne4 Ke3 Bc4 Qf8 Rb8 Rf6 Rbb1 Nf5 Rb7 Bf4 Nd6+ Be4 Qed5 Bg2 Qdb5 Qe7 Qd5 Rf8 Nf7 Qf6 Qdb5 Ne5 Nde8 Nc6+ Qe5+
r1b1n2k/rN1N1K2/2N1n1Bb/bp4R1/1Rr4r/Q4R2/1rbq3r/2RBBB2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 Kf3 h5 Ke4 c5 Ke5 f5 e4 Kf7 g4 Kg7 a4 f3 d4 b3 g5 b2 g6 f4 a5 c4 a6 f2 a7 c3 d6 f3 d7 c2 Ke6 h3 e5 h4 d5 h2 d6 h3 Nd2 b1R Nb3 Nc6 Ra4 Nf6 Qd3 Ra1 Rb4 Ne7 Nc5 Rb1 Ne2 Rb2 Qa3 Rh7 Nd4 Kh8 Bd2 c1B Be1 Bd2 Nc6 Ne8 Rg1 Bg7 Kf7 h1R e6 Nd5 e7 h2 Rg5 Qa5 d8R Nc7 Nd7 Ne6 Rc5 Rh4 Rc1 Bgh6 g7+ Kh7 g8R Rc4 Rg1 Kh8 Rg5 Bc3 Bd3 f1R Be2 f2 Bd1 Bb7 Rb8 Bc8 Rb7 Rfg1 Rb6 f1B Rb8 N8g7 e8B Bd3 Rb7 Bc2 Rb6 Rb8 a8B Rg2 Bb7 Ra8 Ra6 Qd8 Raa4 Rd2 Rb3 Bb4 Rf3 Ba5 Rb4 Rd5 Nde5 Ra7 d7 Rdd4 Ba8 Rh4 Bb7 Rg1 Ba8 h1R Bb7 Qb6 d8N R1h2 Nd7 Qd4 Ba8 Rgg4 Nb7 Rf4+ Ke7 Qd2 Bg6 Rfe4 Kf7 Ne8 Rf1 Re5 Rff5 Nc5 Ncd8 Nf6 Nd6 Re8 Bg2 Ba6 Rf3 Ne6 Nc6 Rea8 Bf1 Bc8 Nb7 Ne8
b4bN1/qb6/bBrb4/N1b1Rp1b/BB1KB1r1/1bn5/1QR4R/NN2k2n w - - 0 1 illegal: No possible last move
2N2b1n/pQ2nb2/3Rr1k1/R2n4/1rBK4/2BNBqn1/pNn1bR2/B1r1N3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 f5 d4 Kf7 b4 c5 e4 h5 g4 c4 d6 h3 g5 h4 b5 f3 Ke3 a3 d7 c3 d5 h2 g6+ Kg7 b6 c2 d6 f2 b7 h3 e5 f4+ Kd4 f3 e6 Rh5 e7 Re5 e8R Nh6 Re6 Qf6 d8B Nf7 d7 Nh8 Bc4 f1N Be3 c1R Qb3 f2 Nd2 Qf3 Rd6 Re6 Ba5 a2 d8N Bd7 Nc6 Be8 Bc3 Bf7 Ne5 Nd7 b8B Nf6 Qb4 Nd5 Nd3 Ne7 Bc7 Rb8 Qb7 Kf6 g7 Kg6 g8N Nd5 Qa8 Rb4 Qb7 Ng3 Bd8 f1N Bf6 Nf5+ Kc5 Nfe7 Kd4 Qe2 Ngf3 Qd1 Nfe1 Qf3 Nb1 Nd2 Na3 Nb1 Rf1 h1N Rf2 Nd2 Rb1 h2 Rb3 Nb1 Bg7 Rb6 Rb5 Ng3 Ra5 h1B Be5 Bg2 Bf6 Bf1 Be5 Nc8 Bf6 Be2 Ne7+ Kh7 Ba1 Rb4 Bc3 Ncb6 Nc8 Kg6 Nb2 Ne7 Nac2 Nbd5 Ned3 Rh1 Nce1 Na3 Nd1 Rf1 Ba1 Rg1 N1b2 Rh1 Kc5 Rg1 Bc3 Rh1 Kd4 Rg1 Nc2 Rc1 Nce1 Nc2+
4b3/1Qn2K2/2B3Rp/2R1R2B/B1r1Rb2/q1r1Bp1n/N1NN1nq1/3nn1bk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd3 Ke5 e4 a5 c4 f5 g4 h3 b4 a4 g5 f3 c5 f4 g6 f2 b6 a3 b5 a2 g7 h6 c6 f3 b7 h2 b6 Nd7 b8R Ne7 g8R Ra4 c7 Rc4 Nd2 Kf4 b7 Qe8 Be2 f1Q e5 Qg2 e6 Bg7 Qf1 Kg3 Bd1 Qf8 Ba4 Rh7 Rb1 a1B Ne2+ Kh3 Rb2 Be5 Rc2 Bf4 Nc3 Rg7 Rg1 h1N Na2 Kh2 Rc3 Rg4 Rg5 Rh4 Re5 Nf2+ Kc2 d3+ Kb3 Rc6 Rc5 d4 Kc4 Nd5 e7 Nh3 e8B Qd6 Re4 Qf8 Bh5 Ne5+ Kb3 Bd7 Re8 Qd6 c8B Nc7 b8N Bb2 Bb7 Ba3 Rd5 Bc5 Na6 Ba7 N6b4 Rc3+ Kb2 Bb6 Nc2 Qe7 Bbc6 Qa3+ Kb1 Ba7 Rc5 Rg4 Qf2 Bb6 Qh4 Ba7 Qe7 Rh4 Nb3 d2 Qf7 d1N Nd2 Nd3 R8e5 N1f2 Qg7 Qf1 Rg6 Ne1 Qf7 d3 Qb3 Kh1 Qb7 Qb4+ Ka1 Qa5 Kb1 Qg2 Kb2 Rc4 Kb3 Qa6 Nb1 Rc3+ Kb4 Bb6 Be3 d2 Ree6 d1N R6e5 Ra3 Nd2 Qa5+ Kc4 Rc3+ Kd4 Ba7 Bab5 Qa3 Ba4 Ne8 Kd5 Nc7+ Kd6 Bh2 Rb4 Rhc4 Ke7 Bf4 Kf7 Ng4 Rcb5 Rc5 Rbe4 R5c4 Bf2 Bd4 Rbc5 Bde3 Bh4 Bg1 Bf2 Nde3 Rg8 Nd1 Be3 Ngf2 Rg6 Be8+
2Nn1Br1/2q3R1/B1n2p1p/K1R2bqn/B2N1r1k/Q1R3n1/1n1bNqR1/3B4 w - - 0 1 illegal: No possible last move
2r1rrr1/qR4Nr/1Q3n2/r1pk1N1B/1nb1R1K1/R2r3B/2B1Rp2/N1b3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 g4 a5 d4 h5 e4 f5 b4 c5 e5+ Kd5 e6 a4 e7 c3 e8B a3 b6 a2 b5 h3 g5 h4 b7 c2 g6 h2 b6 h3 g7 Rh7 Nd2 Qd7 Ne2 Ne7 Nb3 Nec6 Be3 c1R Bg1 Nb4 Bh5 Rc3+ Qd3 Be7 Ng3 Bg5 g8B+ Qf7 Bg2 Nd7 b8R Ba6 b7 Bc4 Re8 Rc8 b8R Bh6 Qe3 Rd3 Re4 Bg5 Re1 a1R Rb7 Ra5 Na1 Rh8 Bh7 Rhg8 Re2 Rce8 Kf2 f3 Qf4 Rc8 Qc7 Bc1 Qb6 f4 Nf5 Qe7 Ra2 Rge8 Ra3 Qg7 Kf1 f2 Ke2 f1R B7g6 Rfd1 Kf2 f3 Kg3 Rf8 Re2 Re3 Kg4 Rdd3 Bf1 Qe5 Bg2 Qb8 Bf1 Qa7 Bh7 Ke4 d5 Ke5 d6 Kd5 B7g6 Ree8 Re4 Nb8 d7 Rg8 d8N Nd7 Bd4 Ref8 Rg1 h1R Rg2 h2 Rge2 Rg1+ Bg2 h1R Ne6 Re1 Bg1 f2 Neg7 Rh2 Be8 Rhh3 Bhg6 Rh5 Bh3 Rh7 Bh5 Nb8 Ba4 Nd7 Rd2 Re3 Bc2 Re2 Rf4 Re7 Re4 Ree8 Rde2 Nf6+
n1r2bb1/3R1Rrk/4B3/q5nn/1R1R1N2/N1rr3K/1B1BppQ1/bNB2q2 w - - 0 1 illegal: No proof kernel
1BQ5/1bBqnKB1/4N2q/5R2/NbRqr2p/2bN1B2/rn2R1p1/1nRn3k w - - 0 1 illegal: No proof kernel
5q1n/3nRrQ1/1q1b4/1b1p3N/p1RBN1Rr/2n2K2/2b2Br1/b1kBR1BN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 h4 Kf5 e4+ Ke5 c4 d5 h5 a5 b6 g5 h6 f5 b7 f3 h7 d3 c5 Kd4 c6 d2 c7 a4 e5 f4 e6 Nh6 b5 Ra7 b6 Nd7 b8B Nf7 b7 Bd6 Ne2+ Kd3 e7 Qf8 Qe1 Kc2 e8N Rg8 Bh3 Nh8 Ng7 Ra8 Ng3 d1N+ Kf1 f2 Ke2 f1R Nc3 Ra6 Be3 Rb6 Bd4 Rb4 N7h5 Rg7 Ra3 Kc1 Bg1 Rg6 Bba7 f3+ Kd3 f2 Ke2 Rc4 b8R Ba6 c8R Bb5 Rb7 Rg7 Nge4 g3 Bg4 g2 Neg3 Rf7 Bf3 Rh4+ Rc4 g4 Rb3 Rg7 Rb4 Rg6 Be4 Rg8 Bc2 Rg5 Nce4 Rg6 Bh2 g1Q Qc3 Rg5 Qg7 Nc3+ Ke3 Rg6 Bd1 Rg5 Nf5 g3 Kf3 g2 Rbc7 Qe7 Nfg3 Qf8+ Nef6 Rg6 Rg4 Bd3 Rbc4 Bc2 Bc5 Nb8 Re7 Nd7 Qf7 Rg5 Nfe4 Rg7 Qf6 Rf7 Bd4 Re1 Bb6 f1B Bc5 Qd4 Bg1 Re2 Bf2 g1B Ba7 Ng6 h8B Qb6 Bg7 Bh2 Rg1 Rd2 Nh1 Bhe5 Bh8 Bfd3 Re1 Bf1 Bg1 Rg2 Bg7 Nh8 Bf2 Bf4 Qg6 Be3+ Bf6 Bd4 Qg7 Ne2 Bg1 Ba1 Bf2 Nc3 Bg1 Qc7 Bad4 Qb6 Bdf2 Bf4 B6d4 Bfd3 Rc6 Bb5 Rc4 Bd6+
4rbQ1/2R2N1r/1nq2p2/k1n1qn2/b1Bbb1BB/N1p5/R3RNr1/1KRB4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 h5 Kd2 a5 Kc2 c5 e4 Kc7 g4 Kb6 g5 h3 g6 f3 d5 h2 d6 f2 d7 h4 g7 c3 e5 a4 e6 f6 e7 a3 e8B c4 Nh3 a2 Qd5 Ne7 g8B Rh7 Na3 Qc7 d8N Na6 Bd7 Qe5 Bg4 Nc5 Bg5 Bd7 Nf7 Re8 Bfe2 f1N Bd1 Nd2 Nf2 h3 Bh4 Nf5 Rc1 a1R Re1 h1Q Re2 h2 Qe6+ Qc6 Qd5 Kb7 b6 Ka6 b7 h1B b5+ Ka5 b8R Rb1 b6 Be4+ Qd3 Rb4 b7 Rb5 Rc8 Rb6 Ra1 Rb2+ Kc1 c2 b8R Qce6 Qf3 Ba4 Qg2 Qc6 Ra2 Qec7 Bh5 Bd5 Rb7 Qa6 Re3 Be4 Nh3 Ne6 Nh8 Qe5 Bgf7 Qab5 Qg8 Qb6 Rcc7 Nc5 Rb8 Qc6 Bhg4 Rb3 Re1 Rg3 Re2 Rg2 Rb3 Qee6 Rc3 Qe5 Kb2 c1B+ Ka1 Rh6 Nf2 Rh7 Rc2 Bb2+ Ka2 Ndb3 Kb1 Nd7 Be6 Nbc5 Nf7 Nb6 Bd5 Bf3 Be6 Ba1 Ra2 Be4+ Rcc2 Bd4 Bd5 c3 Bc4 Bf3 Rc1 Be4+
1q4B1/k1B2N1q/B2p1rr1/nb4b1/2QR1rpB/1KRNNbq1/2rR4/3N1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 c4 a5 Kc2 g5 e4 f3 b4 a4 h4 a3 c5 d6 c6 a2 b6 g3 c7 Kd7 b5 f4 h5 f2 e5 d3+ Kb3 g2 e6+ Ke7 b7 g4 h6 f3 b6 d2 h7 Bh6 Ba6 f1R Na3 f2 Nh3 g1Q Nc2 Bd7 c8R Qg3+ Rc3 Bb5 Rh2 Bg5 Qe2 d1B Qc4 Bf3 Ne3 Nc6 b8N Nf6 b7 Nd5 Nd7 Qb8 Ne5 Kd8 e7+ Kc7 e8B Kb6 Bf7 Rc8 h8N Ka7 Nd3 Rg8 Bb2 Rg6 Rd1 a1Q Bg8 Qb1 Rd2 Rc1 Nf7 f1R Nhf2 Rc2 Nfd1 Rf2 Nc5 Rf6 Rd4 Rf4 Nd3 Rf1 Nf5 Ne3 Re2 Rf2 Rd2 Nf1 Nfe3 Na5+ Kb4 Qe8 Ka3 Qe4 Ba1 Qh7 b8B+ Kb6 Bc7+ Ka7 Bb2 Re8 Kb4 Re6 Ka3 Bbc6 Ba1 Qb8 Bb2 Bb5 Ka2 Nb7 Kb3 Rh6 Ba3 Re6 Bb4 Rg6 Bba5 Rff6 Bd8 Rf4 Bac7 Na5+ Kb4 Bd5 Nde5 Bf6 Qe2 Rf5 Qc4 R2f4 Nd3 Bf3 Ka3 Be5 Bg5 Bf6 Bh4 Bg5 Kb4 Rff6 Ka3 Nc6 Kb3 Na5+
RR2r3/r3pn1N/1RN4Q/3n3q/6bB/b2nBNp1/2qrNbn1/1K3BBk w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 b4 Ke6 h4 Kd5 f4 a5 c3 g5 Kc2 d3+ Kb2 a4 h5 e3 f5 Ke4 f6 d5 b6 g3 b7 g2 f7 a3+ Ka2 d2 b5 e2 b6 e1N h6 g4 c4 g3 c5 d4 h7 d3 c6 Nh6 c7 Bg4 c8R Qd5+ Qb3 d1N Ne2 Kf3 Rh5 g1B Rd8 Bf2 Bg5 Nc6 b8B Ng2 b7 Nde3 Bbf4 d2 b8N d1R Bh4 Ne5 Nc6 Bg7 f8N Nd3 Rb8 Nf7 Rh6 Qh5 Qe6 Nd5 Be3 Bb2 Qg6 Rg8 h8B Rd2 Bhd4 Ra7 Nh7 Re8 Qg5 Be1 Bg1 Bf2 Be3 Bc1+ Kb3 a2 Rg6 Rd1 Kc2 Bb2 Qh6 Ba3 Nbc3 Ra5 Ne4 Ra7 Rab1 a1Q Rg8 Qd4 R1b6 Rd2+ Kb1 Qc3 Rg5 Rh8 Rgg8 Qc4 Rgd8 Re8 Ra8 Qc5 Rdb8 Qc2+ Ka1 Nge1 Nc1 Qa4 Kb1 Qd1 Be2+ Kg2 Bf1+ Kh1 Neg5 Qa4 Ne2 Ng2 Nf3 Qc2+
4N3/bR2pq2/b2QqBb1/1r1qNnrN/1K3n2/p3kB2/2Brb1RR/N4R2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Kf6 f4 Kf5 c4 d5 c5 h5 c6 a5 b6 a4 b7 a3 c7 d3 Kc3 d4+ Kc4 e3 g4+ Ke4 g5 h3 b5 h2 g6 h4 g7 d2 b6 h3 f5 e2 f6 e1Q f7 d3 Kb4 Nf6 g8B Qe8 Ne2 Nh5 Bh7+ Ke3 Nf4 Rg8 Bb2 Bh6 f8R Ra5 Ra2 Qf7 Bf6 Rgg5 Be2 Rac5 Rg1 h1B Rg2 h2 Bf3 Bf5 c8N Bg6 Nd6 Nc6+ Ka4 Qe2 b8R Rb5 b7 Nd4 Ne8 Nf5 Rc2 Nhg7 Ra2 Ne6 Nh5 Nf4 Rc2 Rc5 Kb4 Bg7 Qf1 d1B Nd2 Re5 Nb3 d2 Na1 Rb5+ Ka4 Qe1 Qc4 Be2 Qb4 d1R Qd6 Rd2 Ra2 Rbd5 Kb4 Bh6 Ra8 Ba6 b8N Qe2 Nc6 Rb5+ Ka4 Bg7 Ne5 Bh8 Rb2 Qec4+ Rb4 Qce6 Rb8 Bg7 Rb2 Bh6 Rb7 Bg7 Rg3 Bg2 Ra2 Bf1 Rg2 h1Q Rh2 Be2 Rc2 Rbd5 Kb4 Bh6 Rc1 Rc5 Rg8 Qg2 Rf1 Bg7 Bg4 Qgd5 Bf3 Rb5+ Kc3 Ng3 Qd7 Be4 Ng6 Bc2 Be5 Rf5 Qd6 Rc5+ Kb4 Be4 Bb2 Rb5+ Ka4 Bd4 Rg7 Ba7 Bf6 Bb1 Ne5 Bbd3 Rg4 Rg5 Bg6 Ne4 Rgg2 Ng3 Bf5 Bc4 Bc2 Bcd3 Rd7 Bg6 Rb7 Rc5 Kb4 Nf5 Nc6 Ra5 Ne5 Rb5+
3b1R2/1r2pQ2/K3R1q1/n1N2p1q/4B1rB/2B1N1Rn/k2rrBbR/N5bq w - - 0 1 illegal: No proof kernel
3nQ1Nb/1npR2RK/1N1B4/4r1pB/3Rr1n1/NRnq2kq/qN2r3/5bB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 b4 Ke6 e4 Ke5 h4 a5 d4+ Kd6 h5 f5 b6 g5 e5+ Ke6 h6 a4 b7 a3 d5+ Kd7 h7 f3 Ke3 a2 e6+ Kd6 b5 Ke5 b6 c3 d6 g3 e7 g2 e8N f2 d7 c2 Nf6 Bg7 Ne2 g1N Qe1 Nh6 Nf4 Ra4 Be2 f1R Ng8 Rf2 Na3 Nc6 b8R Ba6 Bh5 Bf1 b7 Ne2 Kd3 Rh2 Be3 Ng4 Bg1 Re4 Rd1 a1Q Rd2 Qc8 d8R Qa2 Rd7 Nc3+ Qe2 Rg2 Rh4 Bf6 Rg7 Nd8 Rd1 Kd6 Rd2 Re5 Kd4 c1N Nd3 f4 Nb2 f3 Qb5 Rge2 Qe8 f2 Rd1 Nb3+ Kd3 Ne3 Rd4+ Rd5 Rd2 Na5 Rd1 Qh3 Rd2 Nb5 Ke4 Be5 Rd1 Ng4+ Kf5 Nc3 Kg6 Bf6 Rc8 Re4 b8N Nab7 Nd7 Be5 Nb6 Bf6 Qc6+ Ke5 Qe8+ Kf4 Rb8 Re5 Rdd7 Kg3 R1d4 Ra5 Nh6 Rf8 h8B Rae5 Kh7 Rf7 Ng8 Rfe7 Ra8 Re2 Ra5 R5e4 Rb5 R7e5 Rb3 Bg2 Rge7 f1Q Bg7 Qfb1 Bf8 Bh8 Rg7 Bf1 Bd6 Qd3
R1n2qNB/K2N2B1/R6N/RN6/bp2n1Br/2r1nb2/2bp1n2/1QbB2kn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 b5 c4 d5 a4 h5 g4 h3 g5 h4 a5 h2 f6 d3 g6 b3 g7 d2 f7 Ke3 f5 Kf2 a6 b2 f6 b4 a7 e5+ Kb5 e4 c5 h3 c6 e3 c7 d4 Kb6 e2 Ra5 e1N Ra6 d3 Qa4 d1B Qb3 Nc2 Be2 Ne7 g8N Ne3 Na3 b1B Bb2 Bd7 Nf3 Bbc2 Nb5 Rh4 Ne5 Bh6 f8N Nc8+ Kb7 Be8 f7 Nd7 Ng4+ Kg2 Ra5 Nf6 Nd7 Ne4 f8B Bg5 Rf1 h1N Bh8 h2 Qb1 Nhf2 N4h6 h1N Bfg7 Qe7 Ka6 Qf8 Bg4 Rb8 a8R Bh5 Be2 Bf3 Re1 Bf4 Rg1+ Kh2 Rg6 Ba4 Rc6 Bdc2 Bd1 Kg1 Re6 d2 Rd6 Be5 Rf6 Bb2 Re6 Nb6 Ka7 Bc1 Rd6 Re8 c8B Re5 Re6 Rc5 Rd6 Rc3 Re6 Nbd5 Rea6 Ne7 Nb6 Rc5 Bg4 Rc3 Nd7 Nc8+
7n/qQp1p3/5bRN/1r2rBbK/RN3kb1/1q2rp2/2NNn1B1/2B1BR1n w - - 0 1 illegal: No proof kernel
5NRN/BBb2RR1/Qr2bn2/4k1rb/p1B4n/p2K1p2/N1N1n3/2bB1r1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 e4 Kd7 Ke2 Kd6 g4 a5 d4 f5 b4 h5 e5+ Ke7 d6+ Ke6 b5 c5 b6 f3+ Kd3 h3 g5 f2 d5+ Kd7 b7 h2 g6 f4 g7 a3 Ne2 h4 Rg1 h1B Qa4+ Nc6 b8R h3 Nec3 h2 Na2 Qe8 Be3 Rh6 Bg2 Nf6 g8B f1R Qb5 Qd8 Qa6 Ne7 Be4 Bf3 Rg7 h1N e6+ Ke8 Bd4 Ng6 e7 Bh5 Bf3 Kd7 Bd1 f3 Bf2 Qc7 e8B+ Kd8 d7 Ng3 Bgf7 Ke7 d8N Be6 Bc6 Kd6 Bb7+ Ke5 d6 Nh4 d7 Ne2 Bg8 Bd6 Nf7+ Kf4 Nh8 Ke5 d8N Rg6 Ke3 Rg5 Kd3 Qe7 Rc8 Rb8 Rc7 Qe8 Rcf7 Bc7 Bg1 Qa4 Be3 Qg4 Bf2 Qh3 Be3 Bc8 Ne6 Qh1 Nf8 Be6 Nd2 a4 Nb3 Bd6 Nd4 Bc7 Nc2 c4+ Kd2 c3+ Kd3 Beg4 Ba7 Bh3 Rb1 Be6 Rb4 Rf5 Rbg4 Rg5 Bd5 Rb6 Bc4 Qh3 Bh7 Qh2 Be4 Qg1 Bb7 Qh1 Nd4 c2 Rg2 c1B Nc2 Kf4 Rg8 Ke5 Rg3 Rf5 R3g7 Rg5
2br4/1Qr3RN/Nn2r1BR/n1pbRpq1/3b2Rp/2k3BN/2n1B3/N2r2K1 w - - 0 1 illegal: No possible last move
3BN3/NN2B1RR/1pb1q2r/2R1B3/2Q3RK/n4r1p/rn1pb2b/kn1B3r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 Kf7 a4 Kf6 g4 Ke5 f4+ Ke4 Kf2 h5 c5 e5 f6 d5 g5 h3 Kg3 b6 f5 b3 f7 d3 a5 Kd4 c6 d2 c7 e4 a6 h2 g6 e3 f6 b2 g7 e2 a7 e1R Qc2 d1B Bg5 Rh6 Be2 Nc6 Kh4 Ne5 Ra4+ Nc4 Nd2 b1N Ne4 Bb7 c8R Bc6 Nc5 Qe7 Nb7 Na3 Qc1 Rf1 Nf3+ Ke4 Bf4 d4 Ne5 Nb2 Qc4 Qe6 Rb4 Bc5 f8B Ne7 g8R Rf3 f7 Bd6 Rg7 Nd5 Be7 Nc3 f8B Ncb1 Bd8 Bc7 Bg3 Ke3 Bc5 Kd2 Bce7 d3 Ra4 Rf2 Bf3 Be2 Bg4 Rf3 Rb4 Rb8 a8N Bd6 Nc7 Ra8 Ne8 Bb8 Rg1 h1R+ Bh2 Ra7 Rh7 Ra4 Rg3 Kd1 Rc7 d2 Rb5 Ra7 Rc5 Ra5 Bf8 Ra6 Rcg7 Bd6 Bfe7 Ra7 Kg5 h4 Bh5 h3 Kh4 Bb8 R3g4 Bc7 Nd3 Ra4 Nb4 Bd6 Be5 Bb8 B5f6 Bh2 Be5 Ra8 Na2 Ra6 Nc3+ Kc1 Nb5+ Nc3 Rf7 Kb1 Na7 Ka1 Rfg7 Ncb1 Qc2 Rd3 Rc3 Bd1 R4g5 Nb5 Rc5 Ra2 Qc4 N5a3 Rg1 Rg6 Be2 Rf3 Rg4 Rgf6 Bd3 Be2 Bc2 Rg6 Bd1 Rh6+
1knrQ3/1Nn1Bp1B/1b1n1K1p/2B1q2R/1n1nbp2/2r2N2/q1NR2RB/2N5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 Kd7 Kg4 a5 Kf5 d3 e4 d4 g4 a4 b4 h6 c4 a3 c5 d2 g5 d3 e5 Kc7+ e6 a2 b6+ Kb7 g6 h3 b5 h2 g7 Ra4 c6+ Ka8 b7+ Ka7 c7 Rb4 b6+ Ka6 Ba3 Qe8 Qe2 d1N Nd2 Nf2 Rd1 a1Q Ngf3 Qa4 Nb3 Rc4 Bc5 d2 Nc1 Nc6 b8B Kb7 Ba7 Rc3 Qe5 Qc4 Bd3 Bd7 c8N Ne4 Ne7 Nb4 Nd5 Bc6 e7 Qaa2 Ne3 Qd5 e8N Ka8 Nc2 Nd6+ Kg4 Kb7 Bh7 Ne7 g8R Nec8 Rg5 Ka8 Rhg1 h1N Rg2 Kb7 Rh5 Ng3 Bg1 Ne2 Bh2 Nd4 Qe3 N6b5 Nd6+ Ka8 Qe6 Nc7 Nb7 Bc5 Qe3 Rd8 Qe5 Ndb5 Kf5 Nbd6+ Kf6 Bf2 Qe8 Bc5 Rf1 d1N Rff2 Ne3 Rd2 Nef5 Qe3 Nd4 Qe8 Nc4 Bb8 Nce6 Bd6 Nc7 Be7 Kb8 Nd6 Ka8 b7+ Ka7 b8B+ Ka8 Rge2 Bb6 Nb7 N4d6 Rg2 Bd7 Kg7 Bf5 Ba7 Be4 Kf6 Ba5 Bb6 Kb8 Bc5 Bb6 Rh4 Qdb3 Rh3 Qd5 Rh5 Qe5+
2NNqbRr/8/4b2K/1n3Qn1/ppRB1b2/1nR2r2/1kbNNp1B/3q2BB w - - 0 1 illegal: No possible last move
1RN1N2n/2B1R3/Bb4kb/1nBr3p/qQn1r3/Nqp1BKp1/7b/1R3N1b w - - 0 1 illegal: No possible last move, all moves rejected
q3Bn1N/r6B/rqQ3p1/RK6/1pR2NBN/R1b4b/pn3nNr/Bk1n4 w - - 0 1 illegal: No proof kernel
2B1K2r/1N2Bqkb/prBp1b1n/2N3rR/N7/b2p2N1/R1n1bQ2/1RqB4 w - - 0 1 illegal: No possible last move
Q3nB2/RB2qKp1/r2pB1RR/5pqr/1Nq2nkN/R4b2/3bN3/N2q1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 f3 b4 d3 c4 f2 b6 f6 b5 a4 h5 g3 c5 d2 h6 a3 c6 a2 b7 g2 c7 Nc6 b8N Na7 h7 Qe8 b6 Nc6 b7 Qf7 Qa4 d1N Na6 Ra7 b8R Bb7 c8B Qh5 Ra8 Qh6 Ba3 Qh3 Nd2 Qh6 Nb3 Qg5 Rh6 Ne3 Nb4 Ra6 Ra7 Nd8+ Kd4 Ba8 Bb7 Kf5 Rg6 Kg4 Ke4 f5+ Ke5 Nd1 e4 Nf6 Bc4 f1Q Ne2 g1Q Be6 Ne8 Kd5 Qb6 e5 Bc5 Qa5 Be3 Qa4 Rg8 h8N Bd2 Rh6 Qc7 Ng6 Rh8 Nh4 Qb8 Rg6 Rh5 Rh6 Nf2 Qa5 Nh1 Qa4 Qff4 Rg1+ Ng3 Na1 Qc8 Qc6 Nf6+ Kd6 Qc4 Ke7 Ne8+ Kf8 Nf7 Rg2 Nh8 Qd5 Ng6+ Kf7 Nf4 Qc6 Kh3 Qa4 Nf1 Qa5 Qgd8 Rgg6 Qg5 Qd8 Qg3 Bg2+ Kh2 Nbc2 Rb6 Nb3 a1Q Bf8 d6 Bed5 Qd1 e6 Qg5 e7 Rc6 Nba1 Nf6 e8R Ra6 Re3 Ne8 Nb4 Qb8 Bf3 Kh3 Ra3 Qbc8 Be4+ Kg4 Be6 Qb8 Qc8 Bc6 Qb7 Qd8 Qa8 Bb7 Bb1 Bh1 Be4 Bf3 Bb7 Qe7+
n1k4B/3Nnpr1/p4NB1/2NBB1NK/1q1q4/4R1rb/RQ1pn3/R1bbb3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 b4 Kd7 c4 g5 h4 g3+ Kf3 d3 Kg4 g2 e4 d4 b6 d2 b5 f3 c5 a6 h5 f2 e5 d3 c6+ Ke7+ e6 Bd7 c7 Qc8 h6 Ra7 h7 Kd6 b7 Bh6 b6 Ne7 Rh3 Ra8 Re3 Rg8 h8B Qf8 c8B Rg7 Nh3 g1N Bg2 f1Q Kh5 g4 Ng5 g3 Bb2 Qf2 Qc1 Ne2 Nc3 d1B Bd5 g2 Na4 g1B Nc5 Qf6 Bd4 Bf2 Qb2 Be1 Bc3 Qd4 Ra2 Ng8 e7 Bh3 Bf5 Nd7 Bg6 Rd8 e8R Ne7 b8N Rc8 b7 Kc7 Rd8 Nb6 Nbd7 Na8 Nf6 Rb8 Rd6 Rd8 b8N Kc8 Rb6 Rd6 Rb5 Rb6 Rba5 Rb3 Nbd7 Ra3 Ngh7 Bf4 Ng5 Rb3 Rg3 Bc1 Re3 d2 Ra1 Qf4 Be5 Qd4 R5a2 Ra3 Re4 Rg3 Re3 Qb4 Rc3 Qd8 Re3 Qdb6 Re4 Qd4 Re3 Qbb4
B4KN1/b3p3/R3Rn2/3RNqNb/2qqn3/qpp1Q1RB/1BkBr1rb/8 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 a4 h5 Kg6 b5 Kf7 c5 f4 c4 g4 c3 f5 b3 d6 b4 a5 e3 d7 e2 a6 Kd3 g5 h3 f6 b2 a7 b3 g6 h2 g7 h4 Nf3 h3 Qe1 Kc2 d4 Na6 d5 Nc5 d6 Ne4 Rg1 h1Q Ng5 h2 Nd2 b1Q Bh3 Rh4 Qf2 e1B Bb2 Rg4 Ra6 Rg2 Qe3 Bg3 Ndf3 Qf1 Ne5 Qf5 Re1 Qa5 d8B Qa3 d7 Qg1 Bc7 h1Q d8R Bh2 Rd5 Qgf2 Ke8 Qhf1 f7 Qc4 Rg1 Q2f4 Re6 Re2 Rg3 Rb8 a8B Ngf6+ Kd8 Qd4 g8N Bh6 f8R Rb5 Re8 Bd7 Rf8 Be8 Rf7 Qf1 Rg7 Bh5 Rg6 Rg2 Ra6 Qfc4 Bb8 Nh7 Ke8 Nhf6+ Kf7 Bg7 Bc7 Bh8 Kf8 Rb6 Nef7 Re6 Bf4 Ng4 Rh6 Be5 Rg6 Bb8 Rf6 Ba7 Rh6 Rd6 Re6 Ngf6 Ne5 Qd1 Rda5 Rdd2 Rd5 Rde2 Qd4 Nc5 Bd2 Nce4 Qe3 Qg1 Qf4 Qgc5 Qe3 Q5d4
K2qb1BR/pR4b1/k4p1Q/1Nb2q1R/b1N1rn2/2BRrq2/N1p1n2N/B7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kd5 c3 d4 h3 e4 h4 b4 c2 g4 c4 b6 c3 g5 f3 b7 h2 g6 h3 e5 f2 g7 f6 b5 Qc7 e6+ Kd8 e7+ Kd7 e8N Nc6 b8R Rh6 b6 Rh7 b7 Bd6 Bc4 f1Q Bb2 c1B Na3 c2 Nb5 Be7 Qd2 Bc5 Bc3 Bb2 Rd1 Qd8 Nf3 Rh4 Ned6 Bc1 Qh6 Re4 Rd3 Bd2 Ba2 Bf4 Nc4 Bfd6 Rg1 h1B Nh2 Bf8 Rg5 Bf3 Bb3 Bh5 Re5 Be8 Rh5 Na5 Ba2 Nb3 Ba1 Nc1 Bb3 Ne2 Ba2 Bg6 Bc3 Ke8+ Kc6 Qf5 d5 Be6 d6 Re3 Nf1 h2 d7+ Ke7 Ba1 Be8 Bc3 Re4 Ba1 h1Q Nh2 Qhf3 Bc3 Qa5 Ba1 Qd2 Kc7 Re3 d8N B6d7 Nc6+ Ke6 Nb4 Ne7 g8R Ng6 Bb3 Ngf4 Rh8 Bg7 Na2 Re4 Ncd6+ Ke7 Bg8 Qd1 Nc4 Re3 Nbd6 Ba4 Nb5 Qd2 Rbd8 Re4 b8B Qa5+ Kb7 Re3+ R8d5 Qd8 Bd6+ Kd7 Rb3 Re4 Rdd3 Rc8 Bc3 Rc6 Bb8+ Rd6 Ka8 Kc8 Ba1 Rde6 Bbe5 Re7 Bec3 Re3+ Rd5 R7e4 Rd3 Qa5 Nba3 Kc7 Rb5 Kc6 Rb7 Qb6 Nb1 Kb5 Nba3+ Ka6 Nb5 Qd8+
q3K2N/p3BBp1/B1b3NQ/1Rpqb3/N2n2R1/4R1r1/qqr3rR/3k2nN w - - 0 1 illegal: No possible last move
rBR4b/N1pR4/1Q1RqrB1/b1q2N1N/nR1Kpp1N/n6B/q5pk/5b2 w - - 0 1 illegal: No proof kernel
6kb/K3BN1b/B2R1nr1/1Np5/p1R1rq1p/pN1R2nB/2NQ2b1/1B2r1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 h5 b4 a5 g4 f5 e4 Kf7 d4 c3 e5 c6 b5 f3 Ke3 c2 e6+ Kg7 d5 a3 Kd4 f2 d6 a4 Kc5 f4 b6 h4 b7 f3 e7 Nf6 e8N+ Kf7 g6+ Kg8 g7 Ra6 g5 Bh3 Qd2 Nh7 Nc7 Be7 Nb5 Rb6 Ne2 Be6 Bh3 f1B Ned4 Kf7 g8B+ Kf8 g6 Bb3 Bc4 Bf6 d7 Bg2 Rd1 Qc7 d8N f2 Nf7 f1R g7+ Kg8 Bb2 c1B Nc2 Rh1 Be5 Rf1 Bd6 Ng5 Be7 Qf4 Ra2 Rg1 Rb2 Ba2 Rb3 Re1 Rd3 Rh6 Rd6 Rg6 Be2 Ra6 Bf1 Ra8 Kb6 c5 Bc4 Ne4 Bd3 Kh7 g8B+ Kg7 Bh7 Ng3 Bc4 Bd4 Be2 Bcb2 Rc1 Bg1 Bf1 Na6 b8R Nc7 Rd8 Ne8 Rd7 Rb8+ Ka7 Nf6 Rd3 Be5 R7d6 Re8 Na1 Rg8 Qf2 Qb4 Nc7 Rg5 Rd2 Nd7 Ba6 Rg4 Nb5 Bb3 R2d5 Bc2 Nd2 Bd3 Ndb3 Re8 Bg5 Qf4 Rc4 Bde4 Bg6 Kg8 Qd2 Bh8 Bd8 Re6 Be7 Nf6 Rdd4 Ba8 Bd3 Bae4 Bb1 Re5 Nc2 Bh7 R4d5 R5e4 Rd3 Rg6
3r2q1/2bpRbpK/3rNb1Q/pkN1n1B1/8/p3R1RN/2Bn4/1Bn1n1RN w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 exf5 h6 Ra3 hxg5 Ra1 g4 Ke2 e5 Kd3 a5 Ke4 a3 b4 d3 f4 g3 c4 d2 h4 g2 f6 Rh5 c5 Ra6 f5 Rd6 b5 Ba6 b6 Bc4 b7 Qc8 f7+ Ke7 c6 Rh8 c7 Ba6 f6+ Ke6 h5 Bb5 h6 Qe8 c8B Qd8 h7 Ba4 Rh3 Be7 f8N+ Kf7 Kf5 Ke8 Kg6 e4 Bd3 e3 Nc3 e2 Rg3 Rd5 Ne4 Bb3 Nf2 Rd4 Nh1 Nc6 b8R Bd6 Rb7 Bc7 f7+ Ke7 Qc2 d1N Qd2 Be6 Rb3 Kd6 Bca6 Kc5 Bf5 Qc8 Bad3 Nf6 Qe3 Rg8 h8R Nf2 Qh6 Rd6 Nh3 g1B Bg5 N6e4 Kh7 Nd2 Re1 Qe8 Bb1 Nd3 Bg6 Bd4 Reg1 Nc1 Rbe3 e1N Bgc2 Bg4 Ne6+ Kb5 Nc5 Bf6 f8N Bh5 Nfe6 Ne5 Bb3 Qf7 B3c2 Rd8 Re8 Qf8 Re7 Bf7 Rd3 Qe8 Rde3 Qg8#
B5Nn/3ppq1B/1krR1p2/R3pbr1/3R4/bB1QB1bK/2N2rn1/2R1N1r1 w - - 0 1 illegal: No proof kernel
2b2Rb1/3K1BpN/3b3B/3pq3/1RrNNRnQ/R1Br2pp/3B1pnr/3k4 w - - 0 1 illegal: No proof kernel
3b1nn1/pB4pk/NRrNpB2/Rr2p3/2QB2b1/p2q1N1q/N1b5/2B1KR2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 bxa4 e5 h5 e6 fxe6 gxh5 e5 f4 Kf7 b4 d3 h4 d6 c4 Bd7 b5 Bc8 b6 Qe8 f5 Nf6 h6 Kg8 h5 Ne4 b7 Qf7 f6 Rh7 c5 Qd5 c6 Qd4 c7 Rh8 h7+ Kf7 h6 Kg6 f7 Be6 c8N Qd5 Qe2 Bd7 Nb6 Qb3 Nf3 Bg4 Bg2 Nf6 Nd5 Ng8 Nb4 Nd7 Nc3 Rc8 b8B Rc6 Rf1 a3 Na6 Qe6 Rb1 Qf5 Na2 d2+ Kd1 Qh5 Qc4 Qh3 Ke2 d1B+ Ke1 Bc2 Rb6 Qh5 Bc7 Qh3 Bd8 e6 Bf6 Be7 f8B d5 Bh1 Bd8 Bc5 Rc7 Bd4 Rc6 Rb5 Nf8 Ra5 Ne7 Bg2 Rg8 h8N+ Kh7 Nf7 Rh8 Bc3 d4 Nd6 d3 Bd4 Ng8 Bh1 Kg6 h7 d2+ Ke2 d1Q+ Kf2 Qd3 Ke1 Ne7 Bg2 Rg8 h8R Qc3+ Nd2 Qcd3 Rh4 Rh8 Bd5 Ng8 Nf3 Qg2 Rhh1 Rh2 Rhg1 Qh3 Rg2 Kh7 Rg3 Rc5 Bb7 Rb5 Rgg1 Ba4 Rh1 Rc2 Rh2 Rc3 Rb2 Bc2 Rb3 Rd5 Rb6 Rb5 Qb4 Rc8 Qc4 Rc6
2n2n2/R1Q1N3/1B2kr1Q/K3B2Q/1Nbq2q1/Rnb3Q1/p5bR/1R1r3r w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 a4 exf5 a3 b6 a2 Ba6 Bxa6 b5 Bc8 b7 Nc6 b8Q Nxb8 g4 Kd7 f4 h5 d4 e5 Kd2 c5 Kc3 e4 d6 h3 d5 c4 Kb4 h2 f6 c3 f7 e3 g5 e2 f5 e1R f6 h4 g6 c2 g7 h3 b6 Rh4+ Bf4 c1N b7 Nh6 g8Q Qe8 Qg3 Ra3 Qh5 Ra6 Na3 Ra8 Nf3 Re3 Nd4 Rd3 Nac2 Ng8 Nf5 Rd2 Rb1 Qe5 Ne7 Bg7 f8R Nb3 f7 Qd4+ Kb5 Be5 Nb4 Ra6 Be3 Qg4 Bb6 Bc3 Re8 Rd1 f8Q Qd4 Qfh6 Qg4 Rf8 Qd4 Rf7 Qg4 Rhf1 h1Q R1f2 Qg1 Rh2 Q1d4 Rf3 Nf6 Re3 Nc6 b8B Nh7 Rf3 Nf8 Rf7 Ra8 Rg7 Na7+ Ka4 Nc5+ Ka5 Ba6 Rf7 Bc4 Rf3 Bd2 Ra3 Bc3 B8c7 Rd8 Bb8 Nc8 B8c7 Ng6 Bb8 Rf8 B8c7 Ke8 d7+ Kf7 d6 Ke6 d8Q Rf6 d7 Nf8 Be5 Nb3+ Ka4 Rd3 Qc7 Rd2 d8R Rd1 Rc2 h2 Rd7 h1B Rh2 Nc1 Ka5 Bc6 Re2 Rhh1 Rh2 Be4 Qb8 Bf3 Ra7 Bg2 Qc7 Nb3+
n4nrk/6Nn/5n2/KQR1Nr1R/1Np1n3/2rBq1b1/2nN2B1/1B1B1Q2 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 f4 d5 a4 b5 c4 e5 cxd5 exf4 a6 b4 Bb2 Bd7 Bd4 Bb5 axb5 Qd6 b6 Qd8 Bg7 Bd6 Bf8 Bxf8 e4 h5 d4 f5 Kd2 Kf7 g4 Kg7 a7 c5 d6 h3 g5 b3 Kc3 f3 d5 f4 e5 h2 b7 b2 d7 f2 e6 f3 e7 h4 e8B c4 g6 h3 d6 Qb6 d8Q Qe3+ Kb4 Nd7 b8N Ngf6 Ne2 Rg8 Ng3 Nh7 Nd2 b1N Ka5 Na3 Bd3 f1R Na6 f2 Qb6 Nb5 Nf5+ Kh8 Ng7 Nc7 Nb4 Rb8 Qe2 Na8 Qb5 Be7 Bf7 Ndf8 d7 Bh4 d8N Bg3 Ndc6 Rc1 Ra2 f1N Ne5 Rc3 Bd5 Rb7 Bf3 Rf7 Qf2 Rf5 Bd1 Qe1 Rb2 Ne3 Qf1 Nc2 Rb1 Nb6 a8B Qe3 Bg2 Na8 Rg1 h1N Ra1 Nf2 Rh1 h2 Ra3 Ne1 Bb1 Rc1 Rd3 Rc2 Rd5 Ne4 Rc5 Rc3 Bgf3 Nef6 Nh5 Nc2 Bfe2 Rg7 Bd3 Rf7 g7+ Kg8 Rg1 h1N Rg2 Nf2 Rh2 Ng5 Rh4 Kh7 g8B+ Kh8 Rh3 Rh7 Bd5 Rg7 Bg2 Rg8 Ng7+ Ngh7 Rh5 N2e4
1nn5/2pk1q2/nQn2qNB/7K/1b1BBN2/2bBbN2/1R1qQ3/N4Rn1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 a4 exf4 Bb2 b5 Bc1 b3 Bb2 b4 Ba3 Ra5 Bc1 Rb5 axb5 Bd7 Ra4 Bg4 Ra1 Bc8 g4 h5 h3 f5 Kf2 g5 Ke1 f3 Ra8 f4 Ra1 Bf5 gxf5 g4 f6 g3 Ra6 Rh6 Ra8 Rg6 Ra1 Rg4 hxg4 Bc5 Ra8 Bd6 Ra1 Bf8 e4 h4 d4 h3 g5 h2 g6 b2 d5 c3 e5 b3 g7 g2 Kf2 c2 b6 Qd7 f7+ Ke7 Nd2 b1N b7 b2 e6 Nc3 Qe2 b1N Nb3 Na3 Be3 c1B Rb1 Nc4 Rb2 Na2 Na1 Nb4 Bd4 N4a6 d6+ Kd8 Rb3 Ne7 g8N Bd2 Rb2 Nc8 Ne7 Ne5 Ng6 Bg7 f8B Bb4 e7+ Ke8 Rd2 Bf6 Bh6 Nec6 Rb2 Be5 Qb5 Qd8 Bd3 Kd7 Be4 Bf6 Qe2 Bg7 Ba7 Bgc3 e8B+ Ke6 Bf7+ Kd7 Bc4 Qf6 Bd4 Qf7 Bcd3 Qa2 Nh3 g1B+ Kf1 f2 Kg2 f1N Kf3 Nd2+ Kg4 f3 Ng5 f2 Kh5 f1Q Nf3 Be3 Rg1 Qg2 Rgb1 Qf7 Rf1 Ke6 d7 h1Q+ Nh2 Nf3 d8N+ Kd7 Ne6 Ng1 Nf4 Nh3 Nf3 Qhh2 Nd5 Qd6 Nf4 Qdf6 Ba7 Na5 Bc5 Ng1 Bd4 Nbc6 b8Q Qf2 Qb7 Ncb8 Qb6 Nac6 Be5 Qe1 Bd4 Qd2
Rb3QQr/2Q3Nb/3r1b1q/1n2b1n1/Q2N2RK/3b2r1/N1nB1kN1/2B2q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 b4 Kd7 h4 Kd6 d4 c5 e4 g5 b6 f5 b5 a5 b7 a4 b6 a3 h5 a2 h6 g4 h7 f4 Ba3 f3 Nh3 g1Q+ Kd2 f2 Ke3 f1B+ Kf4 g2 Kg3 Bg7 Nc3 Bf5 Qc2 Ra6 Bc1 c4 Qa4 Nc6 b8N Bd3 b7 Qg5 Bd2 Be5+ Nf4 Nf6 Rh4 Na7 Nc6 Qg6 Bc1 Nb5 b8Q+ Nc7 Bd2 Qf1 Qg8 g1B Bc1 Nb5 Qf8+ Kc7 d6+ Kb6 d5 Kc5 Nd4 Rc6 d7+ Rd6 d8B Be3 Nb1 c3 Ba5 c2 Bad2 Bg1 Nc3 Be3 Rb1 a1N Na2 Bg1 Rb4 Be3 Rh1 Bg1 Kh4 g3 Rh3 g2 Rg3 Bh2 Rg4 g1R Ng2 Bhf4 Rb3 Bh2 Ra3 Bhf4 Ne1 Rg3 Ng2 Rg8 h8Q Nh7 Qhg7 Ng5 Qh7 Bf6 e5 Rh8 e6 B4e5 e7 Bfe4 e8N Bf5 Bb2 c1B Ng7 Nc2 Qg8 Rd7 d6 Rd8 Ba5 Bcf4 d7 Bb8 Bd2 B4e5 Qf8+ Kd5 Nf4+ Ke4 Bbc1 Re8 d8Q Re6 Qc7 Rd6 Nde6+ Kf3 Nd4+ Kf2 Ng2 Bc4 Qb4 Bfd3 Ra8 Bd5 Qa4 Bg8 Qh5 Bh7 Qh6 Qe4 Qg6 Qf5 Qgf7 Qg6 Q7g8 Qh6+
R3RQ2/1k3NB1/2nRR1Bb/2n2n2/N1r1BQB1/1r2nr2/3bn2K/br1q4 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 e4 d5 c4 Kd7 b4 Kc8 b6 a5 e5 f5 e6 h5 e7 a4 e8B d3 c5 a3 c6 d2+ Ke2 a2 Kf3 h4 b5 d4 c7 h3 g5 h2 g6 f4 g7 d3 Ba3 Nf6 g8Q Nfd7 Nc3 Ra4 Nh3 g1N+ Kg2 Rc4 Qc1 d1R Bb2 d2 Na4 Nc6 Ng5 Rh3 Bf6 Bh6 Bg7 Nd4 Bg6 Nc5 Rb1 a1B Bfd3 Re1 Rb3 d1N Qf8 Re3 Bc2 Rec3 Rb2 Rb3 Nf7 f3+ Kf1 f2 Kg2 f1R Qf4 Nc6 b7+ Kd7 b6 Rh5 Qe4 Rhf5 Bb1 R5f3 Qf4 Ne7 c8B+ Kc6 Re2 Qd5 Re4 Ne2 b8R Ne3+ Kh3 Qd8 Rg1 h1N b7 g2+ Kh2 Nhg3 Bg4 Ngf5 Ra8 Qd2 Bd3 Rfb1 b8R Qc2 Rc8+ Kb7 Re6 Nc6 Rd1 Qc1 Rd2 Qd1 Be4 g1B+ Kh1 Ng2 Rdd6 Be3+ Kh2 Bd2 Rce8 Nge3
3rk3/qNR2NQ1/4q2b/4Q3/bBRqB2b/q3BK1N/1nB2r2/q2N1qb1 w - - 0 1 illegal: No possible last move, all moves rejected
2b5/2nQ3B/2n1Q2N/N2r1r2/R2R1rbk/1b2B2N/K3n1n1/br2nQNQ w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 g4 Bf1 Qg5 hxg5 fxg3 Kd2 Ke7 e4 a5 c4 h5 Kc2 f5 Kb3 d5 c5 a4+ Ka2 h4 b4 g2 e5 h3 b6 h2 g6 a3 b7 g3 g7 d3 e6 Kf6 e7 f4 e8N+ Kg5 b5 d4 b6 d2 c6 f3 c7 f2 Bb5 f1R Qc2 d3 Qc5+ Kh4 Bc6 d1N Qd6 d2 Qd3 Rf4 Bd5 Ne3 Qf1 d1B Nc3 Na6 b8N Rh5 b7 Ne7 g8Q Bg7 Nf6 Nc6 Nce4 Rhf5 Ng5 Bg4 N5h3 Bh8 Be4 Rd5 Kb3 a2 Qe6 Rff5 Ng8 Bc3 Ne2 g1R Nh6 Ng2 Be3 Bg7 Rd1 a1N+ Ka2 Nc2 Rd4 Nce1 Ra4 Rf4 Bh7 Ba1 Rd4 Bd7 c8Q Nc7+ Ra4 Raa5 Qce8 Bc8 Q8d7 Na7 Nc6 Rac5 Nd8 Nc6 b8Q Rdf5 Qa8 Rcd5 Qf2 Rf1 Rg1 h1B Nb7 Nf3 Na5 Rb1 Rd1 Nfe1 Bc5 Ne3 Qf3 g2 Rdd4 g1N Qf1 Be4 Qb7 N3g2 Qa8 Bc2 Ba7 Ngf3 Neg1 Bd1 Rdc4 Bc2 Be3 Nfd4 Qb7 Ne2 Rd4 Rf7 Qb4 Bd1 Qbd6 R4f5 Qh2 Rf4 Qh1 R7f5 Qf3 Bc2 Qf1 Bb3+
q6n/2r2R2/kNr1rN2/b5r1/4B1BQ/1nn1rp1R/b2b1N2/BBN1Q1K1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 g4 h5 d4 f5 e4 c5 e5 Kc7 d6+ Kb7 b6 c4 e6 h3 g5 b3 e7 c3 e8B c2 d5 h4 g6 h2 g7 b2 d7 h3 d6 f3 Qd3 f4 Bh5 Rh6 Nd2 b1N Bb2 c1B Bg2 Nc3 Qf1 Na6 Qe1 Ra7 Ne4 Bd2 Bg4 Re6 Nf6 Nc5 Ne2 Nb3 Nc1 Nh6 g8B Nf7 Bh7 Nh8 Bb1 Ra6 Rf1 h1R Ra3 h2 Ba1 Rg1 Bh1 Qe8 d8Q Ra7 d7 Bb4 Qe7 Ba5 d8N+ Ka6 Nf7 Rc7 b7 Qf8 Bg2 h1R Ng5 Rh6 Nh3 Bd7 Bh1 Qa8 Qh7 Rg6 Qh4 Re3 Bg2 Be6 Bh1 Rg3 Bg2 Rc6 Kg1 Rg7 Nf2 Rgc7 Bh3 Rg5 b8N+ Ka7 Nbd7 Ka6 Nb6 Bd5 Nd1 Be6 Bg4 f2+ Kh2 Bg8 Bge4 Bd5 Rh1 f1R Nf2 Bc4 Kg2 Bd5 Rh3 f3+ Kh2 Rg1 Ra4 Bf7 Rd4 Re5 Rd7 Bd5 Rf7 Ree6 Bh5 Rg5 Bg4 Nc5 Kh1 Ba2 Kg1 Nb3
2b3n1/5kN1/Q2R2bn/2Rq1b1r/1QNrpq2/N1K2QN1/2BB1b2/2r1Q1r1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 d4 e3 g4 c5 f4 h5 b6 e5 f5 e2 Kd2 e1R g5 c4 f6 h3 g6 b3 b7 h2 d6 h4 d5 h3 g7 b2 Ra5 Rh7 Bd3 Qc7 Ne2 Nc6 b8Q Nd8 f7+ Kd7 Ng3 Nf6 g8Q Rh5 Qg6 Ng8 Na3 b1B Qb7 Bg7 f8Q Nf7 Rc5 Nfh6 Qe4 Rb8 Qa6 Rb4 Qf2 Ke8 d7+ Ke7 d8N Qd6 Rg1 h1Q Nb7 h2 Na5 Bf6 Rg2 Rg1 Qde1 Kf7 Qg4 Qb8 d6 Ra4 d7 c3+ Ke2 c2 Kd2 Rf4 Kc3 Bg7 Qff1 Qd6 Be3 c1R+ Rc2 Qa8 Qff3 Qf6 Bh7 Rb4 Qge4 Qf4 Qeb7 Re4 Qb4 Qb7 N5c4 h1B Qg4 Bg2 Qf3 Bh3 d8N+ Kf8 Nc6 Kf7 Nd4 Bf6 Ne6 Qa8 Ng7 Bh4 Ne2 Bf2 Ng3 Bhe6 Kb3 Qc6 Rd2 Qd6 Rdd5 Rd4 Bd2 Qc6 Rd6 Qd5 Bd3 Bc2+ Kc3 Bg4 Be2 Bge6 Bd1 Bg6+ Bc2 e4 Ne2 Bh3 Ng3 Bhf5
BQ5Q/3kNN2/2nN4/N1Qq2b1/rrrqQ2R/2q1Brn1/1Rp1r3/2r4K w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 d4 f5 b4 c5 e4 h5 g5 a5 g6 a4 d5 h4 d6 a3 g7 f4 b6 a2 e5 c3 b5 f3 b7 h3 b6 c4 e6 c2 e7 f2+ Ke2 h2 Kf3 c3 Qe1 Rh4 Nd2 Raa4 Qe4 Nf6 g8N Nd5 Nc4 Nc6 b8Q Kd7 e8N Bh6 b7 Ne3 Nh3 g1R Ng5 g2 Rb1 a1Q Nf7 Bg5 Na5 Qf6+ Kg3 Qd4 Qa7 Qb2 Be2 Re1 Bf3 f1R Ne7 Re2 Qc5 g1R+ Bg2 Rff4 b8Q Rgf1 Bf3 Qb3 Rb2 Rff2 Bd2 c1R Bg2 Rhg4+ Kh3 Nf1 Be3 c2 Bf3 Qe6 Bg2 Qee5 Bf3 Ke6 d7 Qc3 d8Q Qd4 Qdb6 Kd7 Ned6 Qc3 Qh8 Qed4 Qbb8 Rb4 Rg1 Rc4 Rg2 h1Q+ Rh2 Qg1 Bg2 Qd5 Qf3 Rfd4 Qe4 Ra4 Rh1 Rdb4 Bf3 Ng3 Bg2 Rf3 Rh2 Rgf4 Rh1 Qgd1 Kh2 Nf1+ Kg1 Q1d3 Rh4 Qd3d4 Kh1 Qf6 Qeh7 Rfc4 Qe4 Qfd4 Qf4 Na7 Bh3+ Qf5 Ng8 Rg3 Bg2 Qfe5 Be4 Rf3 Ba8 Nc6 Qe4 Qed5 Ne7 Ng3#
b3n1kq/1R2r3/3q4/2R2r2/1B1Q1r2/RNK3r1/pR1bQrq1/BBN2qB1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 Kd2 h5 e4 a5 c4 d5 b4 f5 b6 Kf7 b5 d3 c5 d4 b7 f4 b8B f3 e5 f2 b6 a4 b7 g2 c6 h4 c7 a3 Qc2 a2 Be2 f1R Ba7 g3 b8B h3 Qa4 h2 Bd1 Bb7 c8R Rh5 Bb2 Nf6 g6+ Kg8 g7 Rf2+ Ne2 g1Q e6 g2 e7 Rhf5 e8Q Qf1 Bd6 g1R Bc2 Rg3 Bb4 Rb8 Qe3 Ba8 Rc5 Ne8 Qb5 R2f4 Nc1 Rb7 Qd7 Be7 Qe2 Bg5 Rg1 h1Q Rg2 Bh6 Qa4 Re7 B2c3 Kh7 g8R Qb8 Rh2 Qhg2 Rg6 Kh8 Ra6 Kg8 Qd7 Qe5 Ra3 Qh8 Qa4 Bg5 Rh7 Ree4 Rb7 Re7 Bb2 Bh6 Nb3 Bg5 Nc3 Bh6 Re1 Bg5 Bb1 Bh6 Kd1 d2 Kc2 d1R Ba1 d3+ Kb2 d2 Qd7 Rc1 Qd4 d1Q Bb6 Qff2 Rh1 Qff1 Rh2 Qd2+ Bc2 Qfg1 Qd6 Rfg4 Qb5 Qge1 Rc8 Qf4 Bg1 Qef1 Rc5 Qgd2 Qd4 Qd6 Ne2 Be3 Rg2 Re1 Nec1 Rgf4 Rf2 Qde2 Kc3 Qf3 Qa6 Q3g2 Bb1 Rd1 Rb2 Rd2 Qd3 Rdf2 Qe2 Bd2+
B2Q4/1q1qq1Q1/4r3/bQBp2N1/1r1R1qRr/rb4Q1/b1n1B1K1/k2B2N1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 b4 Ke7 e4 Kd6 c4 Ke5 b6 f5 b5 h5 c5 a5 b7 d3 b8Q+ Kd4 b6 a4 c6 g2 Kf2 g3+ Kf3 h4 e5 a3 c7 f4 e6 d2 b7 a2 g6 h3 g7 h2 e7 Ra3+ Bd3 Nh6 e8Q Nf5 g8B Rh4 Bf7 Bb4 Qc2 d1B+ Qee2 Ba5 Be8 Qe7 Qa8 Ne3 Qd2 Bb3 b8Q Nc2 Beg6 d6 Qee1 Bce6 c8B Ra4 Ba3 Rb4 Qab7 Bg8 Nh3 g1R Nc3 g2 Qg3 Re1 Rd1 a1R Bh5 g1Q Ng5 Re6 Q8c7 Qd7 Qb5 Qe1 Rg1 h1Q+ Rg2 Qe5 Bb7 Qc5 Kf2 f3 Ba8 Bf7 Rgg1 Bg8 Kf1 f2 Qa7 Qhb7 Ne2+ Kd5 Rg2 Ba2 Ng1 Kd4 Qb8 Qe5 Qd8 Qf4 Qe2 Kc3 Qee5+ Kb3 Qd4 Qf8 Qg7 Qfe7 Bf3 Bf7 Bde2 Bg8 Rh2 Bf7 Kg2 f1Q+ Kh1 Qf2 Rd4 Qe3 Kg2 Qf4 Bc1 Bg8 Be3 Kb2 Rh3 Bb3 Bf2 Ra3 Bd1 d5 Bfe2 Ka1 Be3 Bh7 Rh2 Rh5 Rh4 Bd3 Rg4 Rh4 Bf2 Bdc4 Rd3+ Kb1 Bc5 Ka2 Rd4 Ka1 Qc6 Ba2 Qb5 Bcb3
2R1bB1q/Nr6/NKQ2p2/R1B1QQ2/R2n1r2/1b3qb1/3r2kb/q1R1Q2q w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 g5 h5 g6 f6 Qd3 Ke7 Qd1 Nc6 Bh3 Ne5 Bg4 Nf7 gxf7 hxg4 Kd2 Kd6 Kd3 Ke5 Kc4 Ke4 h4 a5 b4 g5 b6 d5+ Kb5 d3 c4 d2 h5 g3 h6 f3 c5 d4 b7 d3 b8R f2 h7 f1Q c6 a4 c7 a3 Kb6 g4 b5 a2 Nc3+ Kf4 e4 g2 e5 Kg3 e6 Qf4 e7 Qf3 e8Q Ne7 Na4 Bd7 Rc8 Ra7 Nc5 Nf5 Na6 Nd4 Ba3 Bd6 f8B Kf2 Qe4 g3 Bc5 Be8 Ne2 g1Q Qc6 g2 Nc3 Bg3 Rh5 Qh2 Rc1 g1B Qe1+ Kg2 Rh4 Rg8 h8R a1Q R8h5 d1B Re4 d2 Rhe5 Nc2 Ra4 Nd4 Bb4 Qe7 Qd6 Be2 Ka5 d1R b6 Qb2 b7 Qh1 b8Q Nb5 Rd8 Nd4 c8Q B1h2 Qdc6 Qh7 Kb6 Qh8 Nb5 Rd2 Qf5 Rg4 Rc8 Bc4 Qbd6 Re7 Na7 Qa1 Rea5 Rf4 Bc5 Bb3 Qde5 Rb7+
1B2nn2/B7/1bBR4/2bKB2r/1Qrn1n1Q/r1Q5/1rp3N1/kN1nQb1R w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Nf3 g4 Ng1 Qg5 hxg5 fxg3 e4 Ke7 Ke2 Ke6 Ke3 Ke5 b4 c5 g6 h5 d3 a5 b6 f5 b5 c3 b7 a4 b6 h4 g7 c2 Qf3 f4+ Kd2 Kd4 e5 g2 e6 a3 e7 c4 e8Q a2 Qec6 c3+ Ke2 g3 Qb5 h3 Bd2 c1R Rh2 Rh5 Qg5 Nf6 g8Q Nbd7 b8Q Ra3 b7 Ne8 Qh6 Bc5 Qge6 Nf8 Rh1 h2 Nh3 g1B Bg2 Be3 Rd1 h1R Qfc6 Bg1 Kf3 Rh2 Qe1 Rc2 Bh1 g2 Bc1 Be6 Bb2 Bc4 Qg5 Rc1 Qgh4 Bb5 Qcc7 Ba6 Qa5 Bf2 Qbc7 Rc2 b8B g1N+ Kg4 f3 Nf4 Be3 Ng2 f2 Qb4+ Bc4 Rd2 Nh3 Kf3+ Nf4 Rd1 f1N Qc8 Kd5 d4 Bg1 Rd2 Ne3 Qc7 Bf1 Qca5 Ke6 Ke4 Nd1 Ba7 Kd6 d5 Be3 Qba4 Bb6 Q4b4+ Bec5 Rd3 Kd7 d6 Kc6 d7 Rc1 Nd2 Rc2 Rb1 a1N d8B Nb3 Bc7 Nd4 Bcb8 Rc1 Ba1 Rc2 Rc1 Rb2 Nb1 c2 Qa6 Rh3 Qac4 Ra4 Rd2 Rha3 Qbc3 Rab4 Q4b3 Kb5 Rd3 Nf5+ Qbc4+ Ka5 Rd6 Ka4 Q4d4 Nh3 Kd5 Rc4 Qa5+ Kb3 Qab4+ Ka2 Qd3 Rbb3 Be5 Rb2 Qdc3 Nf4+ Kc6 N8g6 Qeg3 Nf2 Ne3 Nf8 Bf3 Ka1 Ng2 Be2 Rh1 Nd1 Qge1 Nh6 Bg4 Bf1 Bd7 N4e6 Kd5 Nf5 Ba4 Nfd4 Bc6 Nf4+
3bKR2/kN3rQp/B3r1r1/1B1b3R/1N1n1brR/bRQ1n1Qn/5b1Q/8 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h4 Qb6 g4 Qc7 f5 Qd6 h5 Qf6 Bf4 gxf4 g5 Qg6 hxg6 Bh6 Rh3 Bg7 Rh1 Bf8 Kf2 Kd8 c4 Kc7 b4 Kb7 b6 d5 c5 a5 g7 e5 f6 a4 f7 a3 b5 d3 g6 f3 Ke3 f2 Qa4 d2 Qb3 d1R Rh5 d4+ Ke2 d3+ Ke3 a2 Nc3 d2 Nf3 Ra6 Nh4 Nc6 Nf5 Nf6 g8Q Nd4 g7 Be6 Nd5 Re1+ Be2 f1R c6+ Ka8 b7+ Ka7 b8R Ba3 Nb4 Bd5 f8R Rf4 c7 Rg4 Rd1 a1B c8B Rc6 Rh4 Nh5 Nd6 Nf4 Nb7 Nh3 Qc3 Rcg6 Rb1 Rf1 Rb3 Rf7 Bd7 Re6 Rbc8 B1b2 Rc5 Bc1 Be8 Rff6 Qf7 Rfg6 Qf4 Rg8 Qg3 Rf4 Qh2 Rf7 b6+ Kb8 Bc4 Rg4 Bd3 Nc2+ Ke2 d1N Qg3 e3 Nd8 Be4 b7 Ka7 Ba6 Bg2 Kd3 e4+ Kc4 e2 Kb5 e3 Rf5 e1B Rfh5 e2 Kc5 Nd4 Beb5 Bf2 Qh2 Re5+ Kd6 Bf4 Qhg3 Ne3 Qh2 Rh8 g8Q Bh1 Qg5 Rg8 Qh6 R8g5 Qg7 Rg6+ Ne6 Rff5 Ke7 Rf7+ Kd8 Re4 Nc5 Ree6 Qg3 Bd6 Qh2 Be7+ Ke8 Bg3 Qc1 e1B Qc4 Bef2 Qc3 Kb6 b8Q+ Bb7 Qc8 Bd5 Nb7 Ka7 Q8c7 Be5 Qe1 B5d6 Qeg1 Be5 Qc3 Bf4 Qgg3 Bd8+
k1bR4/2p1r2r/bb1q1Brb/qRN3RB/1B6/3B2Q1/3N1Kqr/QRq5 w - - 0 1 illegal: No possible last move, all moves rejected
1R3N2/3B3N/4N2r/2qb3n/1b2N1p1/k1pqbnK1/1qb4R/BQ1r1QQQ w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 d4 Kd6 e4 c5 h4 g5 b6 f5 b7 b3 h5 c4 h6 f3 h7 f4 Bh3 c3 Nd2 b2 Qf1 b1Q Bb2 Qd3 Rb1 Qe7 Ba1 Be6 Rh2 Nc6 b8Q+ Qc7 Qa7 Nf6 Rb8 Nh5 Qb7 Ra4 Qbb1 Ne5 Ne2 Ra6 Ng1 Rg8 h8Q Qc5 Ne2 Qdb5 Ng1 Qb2 Ne2 Kd7 d6 Kc6 d7 Bd5 d8Q Be7 Qa5 Rd8 Qh7 Rb6 Qa7 Kb5 Qh6 Kb4 Qc6 Ng6 e5 Nh4 e6 Rd6 Ne4 g3+ Kg1 g2 Kf2 Bf8 e7 Rd7 Be6 g4 e8N Rd8 N8f6 g1B+ Ke1 Rd6 Nh7 Be3 Bf5 Rh6 Bd7 Rb5 Qab6 Ka3 Qcb7 Bc6 d5 f2+ Kd1 f3 d6 Ra5 Nf4 Bd5 Ng6 Be7 Ngf8 Ra4 Qh3 f1B Ke1 Bd3 Qf1 Bc2 Q7c6 Rd4 Qcb7 Bd2+ Kf2 Bf4 Bb5 Bc1 d7 Bd6 d8N Be3+ Ke1 Be7 Nde6 f2+ Ke2 Nf3 Bd7 Rd1 Q7c6 Ba2 Qd5 Rc1 Qdd1 Bd5 Qh1 Bd6 Qdg1 Rd1 Qb5 Qc8 Qd3 Bb4 Qc4 Qc5 Qb5 Rd2+ Kf1 Rd1+ Kg2 Nf4+ Kg3 f1Q Qc4 Qd3 Qb5 Qdd4 Qe2 Qd3 Qef1 Nh5+
1N3n2/Bk4BN/bb2R1Qb/Qr5q/nN1bp3/nB3B1R/7p/K2N1rq1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 g4 Kd7 f4 e5 d4 c5 Kd2 Kc7 Kc2 h5 Kb2 b3 g5 h3 b6+ Kb7 f5 h2 f6 c4 d6 e3 g6 e4 d7 h4 d5 e2 g7 e1B d6 h3 f7 Rh7 Nc3 Qe8 d8Q Rh5 d7 Rb5 Qd6 Bf2 Bg2 Bd4 Ra6 Nf6 g8B Nd5 Nf3 Bh6 f8B Qh5 Bg7 Ra7 Kb1 b2 Nd1 c3 Be3 c2+ Ka2 b1N Ng5 c1B Qg6 Ndc3+ Ka1 Na3 Bf3 Ra8 Nh7 Ra7 Bf2 Bce3 Bb3 Ra8 Qdg5 Ra7 Qc5 Na4+ Qc3 Ka8 d8N Nd7 Nc6 Kb7 Nb4 Nf8 Bg3 Ra8 Bb8 Bg1 Ba7 Bgf2 Re1 h1Q Re3 h2 Rd3 Qg1 Re3 Be6 Rd3 Bc4 Re3 Kc8 b7+ Kc7 b8N Kb7 Re6 Bb6 Rd3 Bfd4 N8a6 Rd8 Nb8 Rc8 Bg4 Rc7 Rh3 Rf7 Be2 Rf1 Bf3 Rd5 Qg4 Ba6 Qg6 Bf2 Qc5 Rf5 Qa5 Rb5 Nf6 Bfe3 Nh7 Bed4+
2R2Qn1/r2b3K/R2R1pq1/1N1q4/2Nr1n1B/qk2B2N/npRQ2bN/n7 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 g6 g5 Bd6 Bh3 f3 Bf5 gxf5 g6 f4 Nc3 Be7 Nb1 Bg5 hxg5 Ra7 Rh5 Ra5 Rh1 Ra8 Kf2 Ke7 e4 Kd6 a4 Kc5 d4+ Kc4 e5 c5 e6 b5 e7 h5 e8Q h4 d6 h3 d7 h2 g7 b3 g6 b2 d5 b4 d6 b3 a5 Ra7 a6 Qg5 d8R Bd7 Nc3 b1N Qf8 b2 Be3 Nc6 Nb5 Nd2 Nh3 Nb3 Qd2 Rh4 Ra2 Na1 Rc1+ Kb3 Rc2 h1Q Ra4 Nf6 g8N c4 g7 c3 Nh6 Ne5 g8R Ng6 Ng4 Qc5 Ra2 Qa3 Nh2 Qb1 Rh8 Ng8 Rh6 Rg4 Rc8 Qd1 Qe1 Qd5 Qd2 Rc7 a7 Rb7 a8N Ra7 Rc1 c2 Nb6 Rh4 Nc4 Rg4 Ke1 f2+ Ke2 f1B+ Kf2 Bg2 Ke2 Be8 d7 f3+ Kf2 Rd4 Kg3 f2 d8B f1Q Bh4 Nf4 Kg4 Qd3 Rd6 Qc6 Kg5 Bd7 Re1 c1N Re2 Qb4 Ra5 Qa3 Ra6 Na2 Rf2 Nd5 Re2 f6+ Kh5 Qb1 Rf2 Qg1 Kg6 Nf4+ Kh7 Qa8 Qe1 Qd5 Rc2 Qf2 Qc1 Qg3 Qd2 Qg6+
2r2R1Q/2rn2Qr/B2b2bp/n2k4/N3q3/Rb2R1N1/p1N1r2N/R2Bb1K1 w - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 h4 g5 b3 gxh4 Ba3 Qd7 Bc5 Qd8 Be3 d4 f4 exf4 c3 fxe3 cxd4 Bh3 d5 Bc8 d4 Ke7 g4 Kd6 b6 c5 e5+ Kd7 e6+ Kd6 e7 a5 e8N+ Kd7 d6 Kc6 b4 f5 g5 a4 b5+ Kd5 d7 e2 Kf2 e1R g6 f4 g7 a3 b7 h6 b6 f3 Ne2 h3 Ng3 h2 Ba6 c4 Nc3+ Ke6 d5+ Ke5 d6 a2 Na4 c3 Nf6 Nc6 b8N c2 b7 Qe7 d8Q c1B d7 Bd2 Ng4+ Kd5 Qc2 Qe8 Qc3 Na5 Nc6 Bd6 b8R Nf6 Nd4 Rh7 Nc2 Qe4 Qh8 Re2+ Kf1 f2 d8R Bf5 g8B+ Be6 Rf8 Nd7 Rbe8 Rc8 Qcg7 Be1 Rg1 h1R Nh2 Rc7 Bf7 Rc8 Bh5 Bf5 Bf3 Bg6 Bg4 Qf3 Re3 Qe4 Nf3 Rh5 Nh2 Re5 Bf3 Re7 Kg2 f1B+ Kh1 Rg2 Bd1 Bc4 Rgf1 Rf7 Rff3 Re2 Kg1 Re7 Ra3 Bb3 Re3 Nb8 Rc3 Rec7 Re3 Nd7
1B3br1/p1R1BR1b/4RQQN/4KN2/b3r1r1/3B2qp/1kq1r1R1/nB5r w - - 0 1 illegal: No possible last move, all moves rejected
1n1B1k1B/Qn1nrNq1/q4r2/pR2R3/5NpK/1Nr2N2/B1B3rb/3qQ3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 b5 axb5 Bb7 h5 Be4 g3 e5 Rh3 exf4 Rh1 Bg6 hxg6 fxg3 b4 d5 c4 h5 e4 a5 c5 f5 b6 d3 b7 h4 c6 g4 e5 d4 c7 f4 c8N h3 e6 h2 b5 f3 e7 g2 Kf2 d2 Kg3 d3 b6 f2 g7 Qd5 Nd6+ Kd7 e8N Ke7 Bb2 Qc4 Nf3 Ra7 Nf7 Nf6 g8B Qa6 Ng7 Nfd7 Nh5 g1R+ Kh4 Rg2 Bf6+ Ke8 Bd8 Bd6 Qe1+ Kf8 Be2 d1Q Nbd2 f1R Rb1 Qb3 Bd1 Qc3 Bc2 Qg7 Nb3 d2 Rb2 d1Q Rb1 Nc6 b8B Bc7 Rg1 h1N b7 Bh2 Be5 Nf2 b8Q Nd3 Bef6 Rc7 Qa7 Rh7 Rh1 N3c5 Be5 Qg6 Bh8 Ncb8 Rb2 Rg7 Nf4 Nb7 Rg1 Rc3 Rb1 Rgf2 Rg2 Rd2 Re2 Rf2 Re6 Rg2 Re5 Rd6 Na1 Rb6 Rbb5 Rf6 Nb3 Rh7+ Nh6 Re7 Nf7 Qg7 Bgh7 Nbc5 Bb1 Rgc2 Ba2 Rg2 Bc2 Nb7
1Qq3rq/1rn1Q1nn/N1N1Q1p1/QrR3q1/B1RK3r/3p4/4NB2/k4n1N w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 h3 b6 h4 f4 h5 g6 h6 Bg7 hxg7 Ba6 Nh3 Bd3 Ng1 Bf5 gxf5 Qc7 Kd2 Qc8 Ke1 Qd8 Kf2 Kf7 c4 Kf6 a4 Ke5 e4 h5 a5 d5 c5 h4 f6 h3 c6 b3 c7 h2 c8N d3 f7 Kd4 f8Q b2 a6 b5 e5 b4 a7 b3 e6 d2 e7 Rh4 e8Q Qg5 Qde1 d1Q Q1e7 Nf6 g8Q Nh7 Bg2 Na6 Qf5 Qc2+ Nd2 Kc3 Ra5 b1R Qge6 b2 Q8g8 Rb8 a8N d4 Nc7 d3 Na7 Rb7 Qgf8 Ra1 Nc6 b1R Qfd5 R1b5 Qb8 Rab1 Ba3 Ra1 Bb4+ Kb2 Ne2 Rb1 Rf1 h1Q Ne4 Qh2 Ba3+ Ka1 Ng3 Qc3 Nh1 Re1 Ne8 Nc7 Qdc5 Reb1 Rc1 Qh3 Qca7 Qh8 Rc4 R1b2 Bc5+ Ra2 Qe4 Qc8 Bh3 Ra3 Bd7 Ra4 Q4e6 Ra3 Ke1 f2+ Kd2 f3+ Be3 Rb4 Rf5 R4b5 Qa5 Ra4 Re5 f1N+ Kc3 f2 Bd4 Ne3 Rec5 Na8 Nc7 f1N Na6 Nf5 Be8 Ng7 Bf2 Nc7 Bd7 Rf4 Be8 Rf8 Kd4 Rg8 Nd8 Rb1 Bb5 Rb2 Nc6 Rb3 Qb6 Rab4 Ba4 Rb5 Qa5 Rb1 Qh3 R1b4 Qhe6 Na8 Ke4 Rb3 Rc3 Nc7 Rc2 Qh4+ Ke5 R3b4 Rc3 Qh6 Rc2 Rh4 Rc4 Rh3 Ke4 Qg5 Kd4 Rh4+
kBB1B3/2qr4/5pr1/r5qQ/1R1R1Q1b/rbq2bp1/1K1B4/1NNRqR2 w - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 d4 axb4 g5 c5 g6 cxd4 Bb2 f6 Ba3 Ra5 Bc1 Ra8 h3 Nc6 Kd2 Ke7 Bb2 Ne5 Ke1 Nf7 gxf7 g5 Bc1 Nh6 Bb2 Ng4 Bc1 Nf2 h4 g4 Nd2 Nh3 Nb1 Ng5 hxg5 Kd6 Nh3 Ke6 Ng1 Ke7 Kd2 Kd6 e4 Kc7 a4 Kb8 c4 h5 Kc2 b5 g6 d5 a5 f3 e5 h4 e6 h3 a6 b3+ Kb2 g3 c5 f2 g7 b4 g8B d3 c6 h2 e7 d4 e8R d2 Re4 d3 Qg4 d1Q Bh7 d2 Ra3 Be6 Qf5 Qf3 Be2 f1R Qh5 d1R Ra2 Bh6 f8B Rg8 Ra4 Qc7 Bd6 Rg6 Bd2 Bg5 Bb5 Bh4 Ne2 Ra7 Ra1 Ka8 Rd4 Rf2 Rf1 h1B Nc1 Qd5 Rg1 Rf5 Rf1 Bf3 Bg8 Qe5 Ra4 Bed5 Be6 Qf4 Bc8 Qg5 Ra1 Bg8 Ba4 Ra5 Be5 Re1 Bd6 Re7 Bb5 Rd7 Be5 Rb7 a7 Ra3 Ba4 Rb5 Bd6 Ra5 B6f4 Qb6 Bb8 Qbc5 c7 Bgd5 Ba6 Qc4 c8Q Qc7 Qch8 Be6 Bc8 Bed5 Nc3 Bg8 Q8h6 Bc4 Kb1 b2 Kc2 Be6 Bb5 Bc4 Nb1 b3+ Kc3 Qd5 Qf4 Qg5 Ba4 Re7 Ne2 Rae5 Be8 Ra2 Na3 b1Q Qh6 b2 Re4 Rd7 Qh5 Bb3+ Rc4 Qbf5 Rac1 b1Q Rce1 Qd1 Nc1 Red5 Nb1 Ra3 Kb2 Qd3 Ra4 Q1e2 Rd1 Qe1 Rd4 Re7 Be6 Kb7 a8R Rf5 Raa4 Ra5 Rab4+ Ka8 Bc8 Rd7 Qfg4 Qde3 Qf4 Qec3+
5nNn/q1Q1R3/R3r2Q/2B2r2/1pqRN1BQ/5Rb1/1KpqQp2/1r2b1k1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 d4 Ke7 Kd2 Kd6 Kc2 f5 a4 h5 e4 c5 g5 b5 a5 h4 g6 b3+ Kb2 b4 e5+ Ke7 d6+ Ke6 d7 Kd5 e6 Ke4 e7 f4 e8R+ Ne7 a6 c4 a7 h3 g7 h2 g8R f3 d5 Rh6 d6 Re6 Be3 Ng6 Re7 Nh8 Nh3 g1B Qe2 g2 Rg3 Bf2 Ra6 g1Q Nf4 Be1 Nh5 f2 Rf3 Qg8 Rg1 h1Q Bh3 Qa5 d8Q Nd7 Bg4 c3+ Kc1 c2 Kb2 Qd5 Qc7 Qd2 Rf1 Rb8 a8Q+ Rb7 Qe8 Rb5 Qg6+ Rf5 Qh6 Qg2 Rg1 Qf1 Rh1 Qh7 Rh4 Qf7 Qh7 Bh6 Bc5+ Be3 Qg7 Nf8 Qh6 Qh7 d7 Qf7 Qd1 Bf4 d8Q Qfd3 Qe2+ Q3e3 Na3 Bg3 Nc4 Qg8 Qd1 Qf7 Nd6+ Kd3 Nf6 Qg8 Qc1 Ke2 Nde4 Kf1 Qd1 Kg1 Qe2 Qf7 Ng8 Qed3 Rd7 Qc4 Rd4 Qd7 Rh5 Qa4 Qh4 Qa5 Rg5 Qb6 Rg7 Qa7 Ka1 Qb5 Rgd7 b2+ Ka2 b1R Re7 Rd1 Kb3 Qc4+ Kb2 Rb1#
2rB1kb1/N1r2npp/8/3pRBN1/4B2r/NR1BN3/2n1rQ1q/K2br2Q w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h4 Qxh4 Qd3 f5 Na3 f3 Bh6 f2+ Kd2 f4 Nb1 f3 Bf4 Bd6 Be3 Bf4 gxf4 Bb7 Kc1 Be4 Qd1 Bb7 Kd2 Qh3 Kd3 Qh4 Bc1 Qh2 Kd2 Bc8 c4 a5 Kc2 d5 b4 a4 Kb2 d3 e4 d2 f5 Qd6 e5 Ra6 e6 Qd8 b6 Qg5 f6 Qe3 f7+ Kf8 c5 Ra7 b7 Na6 b8N Ra8 c6 Ne7 b5 Nf5 b6 Qe1 c7 Nc5 b7 Qe4 Na6 Ne3 b8N Qf4 Ra3 Ra7 Nh3 Qf5 Nc6 Qf4 Ng5 Qg3 Rb3 a3+ Ka1 a2 Nab4 Qh2 Na3 Nb7 Bd3 f1R Nbc2 Rf2 Re1 Re2 Bb2 f2 Bf6 f1R Bd8 Ra4 Na7 Nd6 Qb1 Bd7 c8B d1B Be4 Rff2 Ba6 Rf4 Bad3 Rc4 Qc1 Rh4 Qb1 Ng4 Ne3 Rc7 Nf1 Rf2 Bf6 Ne3 Bf3 Be2 Kb2 Nc2 Bg2 Bf3 Re5 a1R Ne3 Be8 Qg1 Re1 Qh1 Bd1 Bge4 Rfe2 Bd8 Rd7 Bb6 Ke7 Ka2 Kf6 f8Q+ Bf7 e7 Rb7 e8B Re7 Bd7 Rg8 Qe8 Be6 Qh5 Rc8 Bd8 Bg8 Bdf5 Nf7 Q5f3 Rg4 Qf2 Rh4 Ba5 Rd7 Be6+ Ke7 Bd8+ Ke8 B6f5+ Kf8 Kb1 Rdc7 Kb2 Nb4+ Ka1 Nc2+
1b1BRq1n/1k2bRp1/2N1n1NR/2nB1Q2/3p2RQ/6r1/1b1K1rpB/5B1b w - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 h5 g4 hxg4 d3 Ba6 Qd2 Bc8 d4 cxd4 Qc3 dxc3 axb5 Rh4 Ke2 Rh6 Ke1 Rh8 f4 e5 b4 d5 h4 Kd7 f6 Kc7 f7 a5 c5 g3 f5 e4 h5 c2 b6+ Kc6 f6 d4 h6 a4 b7 e3 b5+ Kc7 b6+ Kc6 h7 a3 Nc3 e2 Bg5 c1B Nf3 a2 Rh6 Bh3 Nb5 Qd6 Nh4 Nd7 b8B Ne7 b7 Bb2 Ng6 Be6 Kd2 Rg8 h8Q Bd5 Rc1 Bh1 Na7+ Kd5 c6 a1N c7 g2 c8B Nc5 Rc3 Ne6 Nc6 Ra3 Rg3 Qd8 Rg4 Rg3 Bc7 Qe8 b8R e1B+ Ke2 Bf2 Bb7 Nb3 Be5 Nbc5 Kd2 Qd8 Bef4 Qd6 Re8 Qb8 Bd6 Bg1 Bc7 Bh2 Bd8 Kd6 Bf4+ Kd7 Ba8 Kc8 Be5 Nf5 Qh7 Be7 f8R Nd6 f7 Rh8 Nb4 Rg8 Bd5 Qa8 Nc6 Kb7 Bf4 Rh8 Rg8 Qa3 f8Q Qf3 Qf5 Nf7 Rgf8 Rg8 Be2 Nh8 Rf7 Rf8 Bf1 Rh3 Be3 Bb8 Bg1 Rg3 Bh2 Qb3 Qf6 Nd7 Rh5 Bea3 Rfe7 Qf3 Qh6 Bad6 Qhg5 Qa3 Qh4 Qc5 Qe5 Rff3 Qf5 Rf2+ Kd1 Qa3 Rf7 Bf8 Ke1 Qe7 Rh6 Ndc5 Rf6 Qf7 Kd1 Qg8 Rf7+ Be7 Ke1 Qf8 Kd1 Rf4 Kd2 Rf2+
1r2K1Nq/R3RBp1/2n2BB1/1qQ1N1Qr/2b1p3/n1qp1B2/5r2/k2n2NN w - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 g4 hxg4 Bf4 a5 Bc1 e6 b3 a4 b4 Bd6 Ra3 Bc7 Ra1 Ba5 bxa5 Rh3 Bg2 Rh7 Bf1 Rh8 Ke2 Kf7 f4 Kf6 h4 d5 c4 g3 a6 e3 Kf3 e5 h5 g2 f5 a3 Kg4 d3 a7 a2 b6 d4 h6 e2 Kh5 e1Q b7 d2 c5 Qf2 c6 Qb6 h7 Nh6 c7 Qd6 Qg4 d1N Bd3 Nb2 Bg5+ Kf7 f6 Qd7 Nd2 Nf5 Nf1 Ke6 Kg6 Kd5 f7 Nc6 f8Q Qd2 b8N Qe3 Bf6 Ba6 c8B Nc4 Ng3 Na3 Qg5 Bc4 Bb1 Qb7 Nd7 Qc3 Kf7 Qb5 Ke8 Ne3 Bg6 Rb8 a8B d3 Rh2 Kd4 Nh1 Nd1 Rh6 Nb4 Bf3 Nc6 Rh5 Qcb3 Rh4+ Kc3 Re4 Kb2 Re3 Qc3 Re1 Bg8 Qc5 Bc4+ Nf8 Rb7 Be6 Rb6 Bef7 Rb7 Rc1 a1R Re4 Ra2 Ra1 Kb3 Re3 Rf2 Re4 Kb2 Re3 Nc2 Ra7 Na3 Re2+ Ka1 Re4 Rg8 h8N Rc7 Bd5 Rb7 Nf7 Rh8 Nh6 Rb6 Ng8 Rh5 Bdf7 Rb7 Rd4 e4 Nd7 Rb6 Ne5 Rb7 Ne2 g1Q Rd7 Qh2 Re7 Rb8+ Kd7 Qf4 Ng1 Qfd2 Qg2 Qh6 Qg5 Rb7+ Ke8 Qh8 Bg4 Rb6 Bf3 Rb8+
7R/NN1R1nbp/qkBQB1Q1/4n1q1/p1Q5/N2p1n2/2Qnr3/K1N1n2r w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Be3 g3 Kd2 Qb6 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Qd8 Kc1 d5 e4 Kd7 c4 Kc7 b4 f5 Kb2 a5 c5 d3 b6+ Kc6 b7 d4 e5 d2 b5+ Kc7 b6+ Kc6 e6 f3 e7 f4 e8N Qd5 g6 Ne7 g5 Nc8 g7 Qc4 g8B Ra6 g6 Nd7 b8Q Ne5 b7 Qd5 g7 Nd6 Qc2 Ndf7 Bg2 f1Q Na3 f2 Ne2 f3 Nd6 d1N+ Kb1 Nb2+ Nc1 Nbd3 Qe8+ Kc7 c6 Kb6 c7 Ne1 Qe6 Qd3 Qg6 f1N Rh2 f2 b8Q+ Qb7 Bd5 Qg3 Bc6 Qg5 Rh4 d3 Rd4 Ra7 Ra2 Nh2 Ka1 f1N c8N+ Ka6 Rb2 Nd2 Rb1 Qb6 Nb7 Nhf3 Qbd6 a4 Rd5 Ra8 Rbb5 Rb8 Na7 Qa5 Rbc5 Kb6 Rc4 Qa6 Rg4 Nd8 Be6 Ndf7 g8Q Bg7 Qc8 Re8 Rf4 Nh6 Rf8 Nhf7 Rh8 Re7 Bh3 Re8 Qg4 Re6 Qgc4 Rbe8 Bg4 Rf6 Be6 Rf4 Qf8 Rh4 Rd7 Rh1 Bed5 Re6 Qd6 Rf6 Be6 Rf4 Rhd8 Re4 Rh8 Re2
1qNKR2R/b3R1p1/2N1bbqn/r3Qp1N/b1RpB2k/3Q4/2Bb1r2/1N6 w - - 0 1 legal: proof: f4 e5 g4 b5 a4 c5 axb5 f5 d4 cxd4 g5 Nc6 Be3 Nb4 Bd2 Nd5 Be3 Ndf6 gxf6 h6 Bf2 exf4 Bh4 Rb8 Bg5 hxg5 Qc1 Ra8 Qd2 Bc5 Qd1 Bf8 Kd2 Kf7 Kd3 Kg6 Kc4 Kh5 Kd5 a5 c4 d6 Kc6 g4 h4 g3 e4+ f3 b4 d3 e5 d2 e6 d5 e7 d4 e8B+ Kg4 c5 a4 b6 a3 b5 g2 h5 a2 b7 Rh7 b8Q Rh6 b6 Ba6 b7 Rh7 h6 Ra7 f7 Qb6+ Kd7 Qb4 c6 Bc4 c7 Be7 f8R Ra5 c8N Bf6 Ne2 g1B Ng3 Bh2 Qe5 Kh4 b8N f2 Nc6 Qb8 Bd3 f1Q Bc2 Qg1 Nh5 Qg6 Re1 Bf7 Qde2 d1B Qd3 Bd5 Bf7 Be6+ Ke8 Rh8 h7 Nh6 Re2 Bd8 Re3 Bb6 Rg8 Ba7 Kd8 Bf4 Re8 Bg5+ Ne7 Bf6 Bg8 Bd7 Bd5 Be6 Be4 Qg3 Nc3 Qg6 Rc1 a1B Nb1 Bc3 Re1 Rf8 h8R Bd2 Bb3 Ra2 Rc4 Rb2 Ba2 Ba4 Bb3 Be3 Bd1 Rf2 Bc2 Bd2 Qc7 Be5 Nc6 Rf7 Qd6 Rb7 Re7 Bf6 Qe5 Rb5 Bf3 Bdg5 Qee4+ Bf4 Qee2 B6e5 Ree8 Bf7 Qee4 Ra5 Qd5 Bf6+ R1e7 Be3 Be4 Bd2 Qe5 Be6
2Q2QN1/b2pbRBR/KnN4B/1b2rpq1/4Bp2/1q1RB1R1/r3b1r1/4k3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 h4 gxh4 b4 e5 c4 exf4 c5 b5 cxb6 Bh6 a5 Bg7 b5 Nc6 a6 Bf8 Ra4 Na5 Ra1 Nb7 axb7 Be7 Ra6 Bc5 Ra1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 b8R Kg4 e4+ Kg3 b7 Kf2 g4 a5 b6 d3 Kb5 h6 e5 h3 e6 h2 g5 a4 g6 a3 g7 d2 e7 a2 e8Q f6 Nf3 Ne7 g8R Nd5 Bg2 Be7 Rg3 Rg8 Nd4 h5 Be4 f5 Qc2 h4 Qf8 h3 Nc6 Rg4 Nc3 Ra3 Rb1 a1B Rb3 Ra2 Ra8 Rg6 b8B Bb7 Rd3 Rg2 Be5 Qb8 Ba3 Ba6+ Ka5 Bb5 b7 Ba4 Ka6 Nb6 Nd5 Bd4 Bg7 Be3 Qc5 d1B Nf6 Be2 Ng8 Qd8 b8B Bd4 Rd1 h1R Ba7 h2 Bb2 Rf1 Bh6 h1Q Ra1 Be3 Bbg7 Qh3 Rc3 Rb1 Rc8 Rbb2 Rh1 Rb5 Qc4 Bd4 Rg3 Rc5 Rcd3 Re5 Rh2 Ke1 Qc2 Nc4 Bc5 Bf2 Be3 Nb6 Rb8 Ba3 Rc8 Qg5 Re8 Bb4 Re7 Bd6 Rf7 Be7 Qc4 Na8 Bc1 Ba7 Be3 Nb6 Nb8 Qhh5 Qcc8 Qhg6 Rh5 Qe6 Nc6 Qb3 Rh4 Qg6 Bg5 Qf6 Rh7 Qg6 B5h6 Qf6 Qb8 Qg5 Qbc8 Bb5+
n7/2N2RnK/q4Np1/1nk2p1Q/Qn3B1B/N1p2b2/4nrn1/B2q1NRB w - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 b4 axb4 g5 d5 h4 dxc4 h5 g6 h6 Bg7 hxg7 Ra5 Bb2 Ra6 Bc1 Rf6 gxf6 e5 Rh6 exf4 Rh4 Nd7 Rh1 Nb8 Kf2 Kd7 Kf3 Kc6 e4 h5 a4 c3 d4 h4 e5 h3 a5 c2 e6 b3 a6 h2 a7 b4 a8N b2 f7 b3 f8B Qf6 e7 Na6 e8N Nb4 Qd3 Ne7 g8Q Bb7 d5+ Kc5 Qe4 Qa6 d6 Nc8 Bd2 c1N Qh7 Nb6 Nf6 Ne2 Na3 b1N Bg2 b2 Bg7 Nbc3 d7 b1Q d8B Nb5 Qh5 Qd1 Bc1 c6 Nc7 Na8 Ra2 Rh7 Rd2 Rh8 Rd7 Re8 Rf7 Re5 Kf2 f3 Ke3 f2 Nf3 Re7 Rf1 h1N Nd2 Nhg3 Rg1 f1N+ Kf3 Ne3 Bh1 Ng2 Nf1 Rd7 Bf4 Rd4 Qc2+ Rc4 Qa4 Rc2 Nh7 Rd2 Bh4 Ra2 Ba1 Rc2 Qh6 Nh5 Nf6 Ng7 Qh5 Nc1+ Kg3 Rf2 Kh3 Ne2 Bhg3 Ne3 Kh4 Ng2+ Kg5 Kb6 Kh6 c5 Nfe8 c4 Kh7 c3 Bh4 Bf3 Nf6 Kc5
1R2Qb1B/1p2r1Q1/4RR2/2KB1B2/5kNn/p2p1N1B/3n1p2/rb1n1Rbb w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 Qd3 cxd4 Qd1 h5 gxh5 a5 b4 a4 a3 Qa5 bxa5 Na6 Bd2 Nb4 Bc1 Na2 Kd2 Bxa3 Ke1 Bf8 Kf2 Ke7 e4 Ke6 h4 Ke5 c4 d5 h6 g5 h7 f5 a6 a3 h5 g4 c5 d3 c6 f3 Ke3 g3 c7 f2 a7 d2 h6 g2 Bb2+ Nc3 Qa4 d1B Qe8+ Ne7 Nh3 g1B Nd2 Rg8 h8Q+ Bg7 h7 Be2 Re1 Bf6 Qg7 Rf8 h8R Rf7 Rf8 Bf3 Re2 Be6 c8B d4+ Kd3 Rb8 a8R f4 Bg2 f1N Nf2 Ba2 Bf5 Nd1 Bgh3 Rd8 Rb8 Bb1+ Kc4 Bg2 Kc5 f3 Ng4+ Kf4 e5 f2 e6 Ng6 e7 Nh4 Nf3 Nd2 Re6 Bg5 Bc3 Bh6 Bb2 d3 Bd4 Rd7 Ba1 Rf6 Bb2 Rg6 Rff6 Bh2 Rf1 Bh1 Qef8 Bg1 e8B Rc7+ Bc6 Re7 Bd5 Rg5 Qe8 Rh5 Qgh8 Bf8 Qg7 Rg5 Ne3 Rg2 Ng4 Rg3 Ng5 Re3 Nf3 Re1 Rg6 Ba2 Qh7 Ne3 Bh8 Ra1 Qg7 Nd1 Rgf6 Bb1
K1Nq2R1/RN1Q3Q/1pbB1Q2/3q2bQ/2B1N3/4bpN1/p1p2pr1/3nk2b w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 Nf3 d5 Ng1 dxc4 a5 b6 a6 Nd7 Ra2 Rb8 Ra3 Rb7 axb7 a5 Ra1 Nb8 b4 a4 Qc2 Nc6 Qd1 Na5 bxa5 Bb4 Qc2 Bd6 Qd1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 b8N c5 g4 h3 d4 a3 d5+ Kf6 g5+ Kg6 d6 f5+ Kd5 f3 Kc6 h2 e4 c3 a6 c2 e5 f4 a7 Kf5 a8Q Ke4 e6 c4 e7 f2 e8Q+ Be6 Kb7 c3 d7 f3 g6 h4 g7 h3 Bc4 Ne7 g8Q Bd5+ Nc6 Bh6 Qh5 Bg5 Qgh7+ Nf5 Ne2 Rg8 Nd2+ Ke3 Rg1 h1Q Ng3 h2 Qb8 Qg2 Qd6 h1B Qf6 Rg7 Bb2 c1B Nde4 c2 Be5 Qf1 Bd6 Qd3 Ka7 Qd4 Ne7 Bc6 Nc8 Qd5 Rb1 Bd2 Rb4 a2 Ra4 Nd4 Kb8 Nb5 Ra7 Nc3 Rg2 Qh8 d8N Bc1 Nb7 Qd8 Qg1 Nd1 Ka8 Bd2 Qgh2 Bc1 Q2h3 Rg6 Nc5 Kd2 Nce4+ Ke1 Q3d7 Rh6 Q5g6 Rh2 Qgh5 Bce3 Ne2 Bh4 Rg8 Rg2 N2g3 Bhg5
2qB4/6Kb/1NQ1N2q/r2B2bk/3Bnq1q/r1q1n1q1/1QB2q1Q/Q3b1RR w - - 0 1 illegal: No possible last move
4bR1r/nB2B3/2QR2qQ/1bbn4/1b3N1K/2kr2Nr/1b2Bq1N/2bB1bN1 w - - 0 1 illegal: No possible last move
bBb2b2/3Q1B2/1q2nq2/1b2bnQ1/B1nR1R1r/2RrN1Kb/5R2/rk1N3B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 b6 a4 b5 h3 c5 h4 g7 a3 c6 h2 b7 f3 b6 a2 c7 f4 Bh3 d3 Qb3 Kd4 e5 d2 e6 d1R e7 Na6 e8R Nh6 b8R Nf5 g8B Qf6 b7 Nc5 Bd2 Ne6 Qa4+ Kd3 Ne2 d4 Rf1 h1Q Qd7 Kc2 Ng3 d3 Bg2 h3 Bf7 h2 Rd8 Rh4 Nc3 Kb2 Rc1 a1B Be3 d2 Bb6 Ra5 Ba7 Rd5 Ra8 Rd3 Bb8 Re1 Ra4 d1B Rc4 Ba4 Rd4 Bb5 Nd1+ Ka2 Rdc4 Be5 R1c3 Kb1 Ra4 Nd6 Nf5 Nc4 Nb2 Red1 Ne3 Rc1 Nbd1 Qg1+ Ke1 h1N Ra2 Ng3 Bh1 Nf5 Ra4 Qgg6 Rf2 Qe7 Kf1 Qc5 Ke1 Qb6 Kf1 Qf6 Kg1 Rg4+ Kh2 Bc6 Kh3 Bd5 Kh2 Rh4+ Kg1 Na3 Qe7 Rh3 Rg2 Bc4 Kf2 Bb5 Re4 Rh2 Rdd4 Ka2 Qd7 Nc4 Ba7 Rh4 Rh2 Ra1 b8Q Bed6 Qa8 Be5 Bb8+ Kb1 Qb7 Qg7 Qe7 Qh6 Qg5 Qf6 Kg1 f2+ Kg2 f1B+ Kf3 Bh3 Rf2 Bbd7 Qd5 Bb7 c8B Ba8 Ba6 Bc8 Bb5 Bc6 Ba4 Bb5 Rfc2 Bg2+ Kf2 f3 Rf4 Bh3 Qd7 Bg2 Ke1 f2+ Ke2 f1B+ Kf2 Ba8 Re2 Nfg7 Kg3 Bh3 Rf2 Nf5+
1qb4k/Q1q1B1q1/n3B3/4R1r1/1N3n1r/r1nr1BRQ/2Bq3N/bKN2qN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 Kg7 c4 h5 Kc2 a5 b6 d3+ Kb2 f3 b7 f2 e5 h3 b5 d2 e6 d4 g5 h4 b6 a4 g6 f4 c5 h2 c6 d3 e7 h3 e8B f3 c7 a3+ Ka2 Nf6 Bg2 f1R Nc3 f2 Qf3 d1N Nce2 d2 Ba4 Rg8 Bc2 Na6 b8N Kh8 b7 Nd5 Nc6 Bg7 b8Q Nf4 Nb4 Qf8 Rb1 Ba1 Qa7 Re1 Qg3 f1Q Bf3 Qe7 Qg4 Rd8 Qg3 Rd3 Rb3 Qc5 Kb1 Qc3 Nd4 Re5 Nde2 Rg5 Bb2 Qe5 Bd4 Qg7 Bc5 Qd7 Nc1 Qb5 Nge2 Qb8 Rg1 h1Q Be7 h2 g7+ Kh7 g8N Kh8 Rb2 Qhg2 Qg4 h1R Nf6 Rh4 Qh3 Qh2 Ng4 Qg3 Rg2 Qh2 Ng1 Qg3 Bb3 Qh2 Rg3 a2+ Kc2 Nc3 Rb1 Qhf2 Nh2 Qfb6 Be6 Qc6 Rb3 Qd7 Ra3 Qc6 Ra5 Qcb7 Re5 Qb6 Kb3 d1Q+ Ka3 Qde1 Bb3 Qd2 Bc2 Bb7 c8B Q6c7 Bf5 Bc8 Kb3 Bb2 Be6 a1Q Bf8 Qg7 Be7 Qa5 Bf5 Qab6 Be6 Ba1 Ka3 Q6c7 Kb3 Ne4+ Ka2 Nac5 Qa4 Ra6 Kb1 Ra7 Qc6 Raa3 Qb7 Na6 Qa7 Nc3#
1KBRb2B/4n3/brB3R1/3rQ1q1/1N1rNn2/1b1Q1NNq/3b2q1/k3qBb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 d5 b4 f5 e4+ d3 c3 h5 g5 a5 g6 f3 g7 f2 b6 h3 b7 f4 b5 a4 b6 h2 Ra3 f3 Rb3 d4 Bd2 a3 Be3 a2 Rb5 a1B Rd5 h4 Rb5 h3 Bg2 f1B Bd2 f2 Be3 d2 Ne2 d3 Rd5 Nf6 g8N Ra6 Rg1 h1Q Ng3 h2 Bd4 Nh5 Nf6 Nf4 Rd6 Be2 Bf1 Bh6 Rg2 Qg8 Rd8 Qg5+ Kd6 Bh5 Kc7 Be8 e5 Nc6 b8N Bb7 e6 Ne7 Nfe4 Ra4 Qc2 d1B Na6 Rf8 Be5 Rf6 Nb4 Qg1 Qe2 Kb3 c4 h1Q c5 d2 c6 Qh3 Kb8 Bd4 c7 Kb2 c8B Bb3 Qd3 d1R Nbd2 Ka1 Nf3 Rg6 Bh8 Qgh1 Be2 f1Q Rg1 Qe1 Bf1 Bbc6 b7 Q1g2 Kc7 Ra5 b8Q Rd5 Qbb5 Bb7 Kb8 Nf5 e7 Rb6 Nc3 Be3 Qc5 Bd2 Nce4+ Bg7 Qc7 Bd4 Qc5 Bh5 e8B Ne7 Bc6 Be8 Ne5 B4e3 Nf3+ Rd4 Qe5 Bf2 Rh1 Bg1 Rh2 Rc1 Rh1 Rc5 Rh2 Rd5 Rh1 Qd7 Rh6 Qdh3 Rg6 Ba6+
2R1q1b1/2Q5/1nR5/bBNQrq2/1Bq2b1n/1B1b1Nn1/1Kq1k1N1/2b1r1BN w - - 0 1 illegal: No possible last move
r1r1k1n1/B2NN1n1/2QK2Rn/b2Q3R/1QB1qn1b/8/r1q3RR/rqQ2b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 Kf3 d5 e4 a5 c4 h5 g4 h3 b4 d3 e5 d2 c5 a4 c6 h2 c7 a3 b6 d4 e6 d3 e7 a2 b5 h4 b7 h3 b6 Qd5+ Kf2 f3 Ke3 f2 Kf4 Na6 b8Q Qe4+ Kg5 f4 b7 f3 Be2 f1R Nc3 f2 Nf3 Nb4 Ba3 Nd5 Bc5 Nf4 Ne5 Bg7 Rc1 a1B Nd5 Bc3 Nd7 Ba5 Rc2 Be5 Qc1 d1Q Ba7 d2 Bc4 Qde1 Rg1 h1R Rg2 h2 Rb2 d1N Ra2 Q4e2 Kf5 Bf6 g5 Ne3+ Ke4 Q2d2 g6 Bh4 Ke5 Ng4+ Kd6 Qe4 g7 Qdc2 Rb2 N4h6 Rb6 Kf7 e8R Rhg1 Rb5 h1N Re6 Ng3 Rg6 Ke8 Ne7 Ngh5 Rd5 Re1 Rh2 f1Q Rdd2 Ngf6 Rdg2 Rf8 g8R Ng7 Rh8 Nfg8 Rh7 Re2 Rh8 Ng4 Rh5 N4h6 Bc5 Ra7 Qa8 Rf2 b8Q Qfe1 Qcb2 Qeb1 Qd5 Ra8 Q8b4 Ba6 Qc1 Bb5 Ba7 Ba6 Bb3 Bf1 c8Q+ Bd8 Qcb8 Qbb2 Q4b6 Qcd3 Qdd4 Be2 Qcc7 Ra1 Rd5 Qdb1 Rc5 Bf1 Rh5 Rf5 Qc1 Rc5 Qd5 Rc8 Qbc6 Ba5 Qb4 Qc3 Bc4 Rfa2 Qba3 Qcb2 Qb4 Q2c2
NQ1r2Nk/bQR2n2/2Rr3b/NqB2N1n/2bq1n2/2r1Q1q1/K7/1n2Q1qB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 Kg7 c4 h5 Kc2 a5 Kb3 a4+ Kb2 d3 g5 a3+ Ka2 d2 g6 d4 b6 d3 e5 f3 b5 h3 b7 f4 c5 h2 b6 f2 c6 f3 c7 h4 e6 h3 e7 Nf6 e8Q Qd4 Qb3 d1N Qbe6 d2 Qa4 Nc6 b8Q Nd5 b7 Nf4 Qc2 Nc3+ Kb3 d1R Nd2 a2 Qd5 Nd8 Qa7 Nf7 b8Q Ba6 c8N Nb1 Bg2 f1Q Qdb7 f2 Ne2 Qg1 Ba3 f1Q Ng3 Qb5+ Bb4 Rh4 Qc3 Kh8 Nf5 Bh6 Nc4 Rg4 Qc5 Rg3 Na5 Qf2 Re1 h1Q Re6 h2 Rc6 Qhg1 Bh1 Rf3 Qce7 Qfg3 Qe1 Rd2 Qce3 Rd1 Qd6 Rb8 Nb6 Rd8 Na8 Rd2 Bg2 h1N Qdb8 Rd1 Rc7 Rd3+ Kc2 Rc3+ Kb2 Rc6+ Kb3 Rd6 Rc6 Na3 Rd1 a1B Ka2 Nb1 Rdc1 Bc3 Ba3 Bb4 R1c3 Bc5 Rc7 Ba7 g7+ Kh7 g8N Kh8 Qe8 Rd3 R3c6 Rc3 Q1e3 Qbb6 Bc5 Bc4+ Ka1 Qb5 Qe1 Qg4 Q8e3 Ng3 Bf3 Ngh5 Bh1 Be2 Ka2 Q4g3 Nb6 Bd3 Na8 Bc4+
Bk4rb/1n3Q1b/1qr5/5qRB/Nn1bK2n/q3Nn2/QR1R1Br1/1RqB4 w - - 0 1 illegal: No possible last move, all moves rejected
1Nr1r1BB/1BNB1qQ1/Q3n1bq/q6n/2N1qn2/1r2bnk1/R3Kb2/2N2R2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Ke5 b4 f5 b6 a5 g5 d5 b7 h5 c5 a4 b5 f3 b6 f2+ Ke2 f4 g6 d3+ Kf3 d2 g7 d4 c6 h3 c7 a3 Qe1 d1R Qe3 a2 Ne2 h4 Nd2 h2 Qc3 h3 Qa3 d3 Qa6 Nd7 b8N Ngf6 g8B Nc5 b7 Bf5 c8B Bh6 Nc3 Ne6 Rb1 a1B Ne2 Bd4 Qb6 Bg6 Na6 Nh5 Qa7 Qa5 Bf7 Re8 Bg2 f1N b8N Bf2 Nb3 d2 Rg1 h1Q Rb2 h2 Bg8 Re1 Nc7 d1N Bd7 Nc3 Bd2 Rb1 Qa6 Nd5 Nec1 Bg5 Bb4 Nd2+ Ke2 Nf3 Ra2 Rc8 Nd2 Rb3 Rf1 Re8 Bh3 Qg2 Bc6 h1Q Bb7 Qg4 Bc5 Qf5 Bb6 Qf8 Be3 Qh6 Nc4+ Kf6 e5+ Kg7 Qc6 Nh4 Bd4 Nf8 Bb6 f3+ Kd1 Bge3 Bd7 Bg3 Bbc8 f2 Nba6 Qe4 Bb7 Re6 Re1 f1Q Bd4 Qf7 Rf1 Bgf2 Ke2 Rc8 Nb8 Nf3 Qa6 Qhf4 Bb5 Kh6 Bd7 Kg5 Bb2 Kh4 Bd4 Re7 e6 Qh6 Bb2 Kg3 Bh8 Ndf4+ Kd1 Ree8 e7 Red8 e8Q Rc3 Qe5 Rb3 Qc3 N8e6 Qg7 Nd5 Ke2 Rf8 Nb2 Rfe8 Nc4 Ndf4+
2Qb2nN/4r2R/2B3R1/N1nb2rq/b2Bk3/K1q2b2/N5nr/B1nqNQB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb3 a5 g5 d3 g6 d2 g7 a4+ Ka2 d4 b6 f3 b5 f4 c5 f2 b7 f3 b6 a3 c6 d3 c7 h3 Nc3 h2 Nh3 h4 Qe2 d1Q Be3 d2 Ng5 h3 Bg2 f1R Bg1 Re1 Qf1 Nd7 b8B f2 b7 Be7 Ba7 Nc5 b8B Bg4 c8Q+ Qc7 Nf3+ Kf4 e5 Bd8 Bb6 Ra5 e6 Re5 Ne1 Bf3 e7 Re6 e8N Re7 Qfa6 f1N Nd6 Ne3 Nc4 Bd5 Be4 Ng2 Rb1 Rh6 Rb3 Rb5 Na5 Qh5 Bd4 d1B Rg1 h1B B6a7 Bc4 Bc6 h2 Bb6 Bd5 B6a7 Nh4 Rg6 Bhf3 Bb6 h1Q B8a7 Nf6 g8N Ng2 Bg1 Rh8 Nh6 Ng8 Nf7 Rh6 Nh8 Qce5 Ne2+ Ke4 Nc1 Qc3 Bd4 Bc2 Bc7 Qf1 Bce5 Qfd3 Bg1 Qd1 Bf6 Rb8 Qf1 Rb5 Nc4 Ra5 Rb7 Ba4 Rc7 Qg5 Bfd4 Rh2 Bb8 Qf5 Rb7 Qh5 Bbe5 Ra7 Bf6 Re5 Rh7 Rae7 Kb1 Rg5 Na5 Qcd2 Bfe5 a2+ Ka1 Qe3 Kb2 a1N Na2 Nab3 Ka3 Qed3 Ba1 Qc3 Bed4 Nc1+
bknB3Q/4b2N/1nB2b2/5Q2/3nQnR1/1RK3b1/RRrQ3r/2qr1bNb w - - 0 1 illegal: No possible last move
B1Q4Q/bB1n1b2/1r5q/2B1Bnbb/k1N3nR/1N1nQ1rn/2QK4/1n3Rr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 Kd7 g4 a5 b4 f5 c5 h5 g5 h3 g6 h2 b6 Kc6 b7 a4 e5 f3 e6 a3 e7 f4 e8Q+ Nd7 b8B f2+ Kd2 f3 g7 d3 Qee1 Kb5 c6 d4 c7 a2 Qe8 h4 Ba7 h3 Bc5 Qf6 Qg6 Ra6 Qc2 Nh6 g8Q Ng4 Qcc4+ Ka4 Na3 Rb6 Qcf7 Be7 Qd8 Rg8 Qgh7 Qh6+ Qf4 Bg5 Rb1 a1B Bg2 f1R b5 f2 Ne2 Rg1 Qhe7 f1N+ Kd1 d2 Ba8 Ng3+ Kc2 d1B+ Kd2 Nf5 Nc4 d3 Qe6 Bd4 Qg6 Rg3 Rf1 h1N Bb2 h2 Nc1 Nhf2 Nb3 h1N Qe3 Nh3 Qh7 Bb7 c8B Bd5 Bcb7 Bf7 Qc8 N1f2 Rh1 Bf3 Rbf1 Be2 Bca3 Bc5 Be5 Bd4 Bc5 Rg1 Kc1 d2+ Kc2 d1N Kd2 Nc3 Rh2 Nh4 Qc2 Nf5 Rh1 Nd3 Rh2 Nhf4 Rh5 Nh3 Rh4 Rf6 b6 Rg3 Bh1 Rgg6 b7 Rb6 b8Q Rg1 Qb2 Rg7 Bhb7 Nb1+ Kc2 Rg3 Qh8 Rg1 Qbc8 Ngf6 Qhf8 Rb4 Na1 Beh5 Bb6 Bf4 Qh8 R7g3 Nb3 Ng4 Kd1 Bg5 Qc2 Na3 Kd2 Bc5 Bbc7 Ba7 Bcd6 Rb6 Bc5 Nb1+
NNrbb2Q/3B1Q1b/Q7/bnr2rQ1/1n5B/3Bn2n/1R1qR2r/1nK3Bk w - - 0 1 illegal: No possible last move
Rbqbn2Q/b2r2Rr/b1NR1R1q/n6N/1Q2bB1k/2b3b1/b3K1B1/4B1B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 h4 Kg6 c4 Kh5 b4 e5 b6 g5 b7 a5 c5 d5 f5 d3 f6 d2+ Kf2 e3+ Ke2 a4 f7 d4 b5 e4 b6 g3 c6 a3 c7 g2 Rh3 a2 Qc2 d1B+ Ke1 e2 Qb2 d3 Qe5 d2+ Kf2 e1B+ Ke3 Nc6 b8B Ba6 c8R Ra7 b7 Na5 Qe8 g4 Rg3 Bf3 Nc3 d1B Nb5 Nf6 Ne2 Bb3 Bf4 Bd6 b8B Rh7 Qf8 Ne8 Bd2 Rd7 Ba7 Bb8 Rc6 Qc8 Rd6 Bc4 Bb4 Bc3 Nbd4 Be6 Nc6 Bb3 Rad1 a1Q Rf6 Ba2 Rdd6 Qb2 Kf2 Qc1 Qe7 Qd2 f8R Qc1 Be5 Qh6 Bf4 Be5 Ke1 g1B Bg2 e3 Kd1 Bh2 Be1 Bc3 Qe4 Bc7 Qb4 Bd8 Rg8 Be4 Rg7 Bg6 Rf3 g3 Bb6 Kg4 h5 Kh4 Bc5 Qg5 h6 Be4 Rf2 Rh8 h7 Qh6 Bh3 g2 Ng3 g1B Nh5 Bg3 Bg2 Be5 Rf3 e2+ Kd2 B1f2 Ra3 Bg1 Bcf2 Bc3+ Ke3 Bh2 Bg1 Bd4+ Kd2 Ba7 Bef2 e1B+ Kd1 Bc3 Be1 Rf8 h8Q Rff7 Ra4 Bb7 Ke2 Rfe7 Rg5 Rh7 Rg7 Ba6+ Qb5 Nb3 Rd2 Be3 Bh1 Bgf2 Be5 Bb7 Ra8 Na5 Qb4 Ba7 Bg2 Ba6+ Rd3 Bb8 Bd6 Bhg3 Bf4 Nc4 Rd2 Bfa7 Rdd6 Na5+
N2K2q1/1qQBnkBn/8/1Bnb3r/N4b1n/2n1q1RN/3Bb2p/rN1RQ3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 f5 g4 a4 b4 h3 e4 d3 c4 d2 c5 f3 g5 f2 g6 d4 g7 d3 b6 h4 c6 a3 b7 h2 c7 f4 b5 h3 b6 f3 Ra2 Kf7 Qb3+ Be6 c8B d1B Bd2 Ne7 g8N Bh6 Qc3 Be2 Nf6 Qg8 Kd6 Bf4+ e5 Bd5 Kc7 Nd7 b8B Rh5 b7 Nf8 Nd7 Nh7 Nc5 Ra5 Ra1 a2 Na4 Ra7 Bd7 Ra5 Bg2 f1N Ba7 f2 b8Q Ra6 Bd4 Ng3 Bf1 Ngf5 Qc1 Nh4 Qe1 Bg4 Be2 f1Q Qb6 Qf2 Qc6 Qg6 Kd8 Qe3 Qc7 Bgf3 Bf1 Be2 e6+ Kf8 B2c3 d2 Bg7+ Kg8 Ba5 d1N Bd2 Qg5 Qf2 Nc3 Qe1 Bd1 Bfb5 Be2 Nf3 Qg6 Rg1 h1Q Rg3 h2 Ng1 Qhe4 Nh3 Qb4 Bc4 Qb7 Bcb5 Ra5 Na3 Qg4 Rd1 a1N Nb1 Ra7 Bf8 Nb3 Bg7 Neg6 e7 Nc5 e8N Ne7 Qc8 Qge6 Nc7 Kf7 Na8 Ra6 Qc7 Qg6 N4b6 Ra1 Na4 Nf8 Bh6 Qg8 Bg7 Nh7+
b2nrk1B/5qq1/1n5b/1R1QbR2/B1b1KN2/5rNb/2npB2N/NQB2q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 c4 d5 b4 f5 g4 h3 e4 d3 e5 d4 b6 a4 g5 d2 e6 a3 g6 h4 b7 h2 e7 d3 c5 a2 b5 h3 g7 Nc6 b8B Qd7 b6 Ra3 b7 Nd8 c6 Nf6 g8B Nd5 c7 Bh6 Be2 Nb6 Bb3 Qd4 Bc2 Qg7 Ba4+ Bd7 Qb3 d1N c8N d2 Be5 Ne3 b8Q Nc2 Qd6 Rf8 Qd5 Qf7 Bh8 Qg7 Kf2 f3 Qbb5 Rc3 Na3 f4 Rb1 a1B Qbd3 Rg8 Rb5 Rb3 Qh7 Be5 Qhe4 Re3 Qb4 Be6 Qb1 Kf7 e8N Kf8 Ncd6 Rb3 Qc6 Bc4 Nf5 Re3 Qd5 Rd3 Kf1 f2 Ng3 Rf3 Nf6 Qf7 Ng4 Qg7 Bd3 Qf7 Ke2 f1B+ Kd1 Bg2 N1e2 Bf1 Rg1 h1Q Nh2 Bg2 Rf1 Qg1 Nh5 Qd4 Neg3 Qb2 Ke2 Qd4 Ng4 h2 Rf2 h1B Nh2 Bh3 Rf1 Ne1 Nc2 Qg1 Na1 Nc2 Ne4 Qgg7 Neg3 Re3+ Kf2 Be4 Be2 f3 Nf4 Rc3 Qd4 Ba8 Qe4 Ke7 Qd3 Re8 Qd5 Kf8 Bd3 Ne1 Ke3 f2 Ke4 Nc2 Be2 Qd7 Rg1 f1Q Rg2 Qgf7 Rf2 Qb7 Nd3 Qe7 Rf5 Qc7 Nf4 Rf3 Rg5 Qg7 Rf5+ Qcf7
1qBBk3/N4n2/K2q4/p2n1R1Q/1q3R2/N2bq1b1/BBrrnb1Q/1RRq4 w - - 0 1 illegal: No possible last move
q4RQR/qn1B1BN1/1b2nKp1/1b1QBB2/8/krqQ4/1N2Qb1r/rb1b4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 c4 a5 e4 d5+ Ke5 f5 h4 d3 h5 g6 b6 a4 b7 a3 h6 d2 h7 a2 c5 f3 c6 g3 c7 f2 Na3 g2 Qe2 d1B Bf4 d4 Nc4 d3 Nh3 g1B Ng5 d2 Ne6 Ne7 Ng7 Ra3 Bh3 f1B Kf6 Nbc6 b8Q+ Bb6 e5 Nd4 e6 Nec6+ e7 Ne6 Be5 f4 Qa8 f3 Bf5 Na5 Qd5 f2 b3 Bd7 c8B Bb5 Nb2 Nb7 Bd7 Qa8 e8B Bfc5 Bf7 Be3 Rc1 a1R Rc8 Bd3 Rh3 Bb1 Rf8 Qa7 Qed3 Bfe2 Rh6 f1Q Rh2 Bf2 Rh6 Rg8 h8Q Qg2 Rh3 Qe4 Qh5 Rh8 Rh2 Bf1 Qhe2 Qd4 Rh6 Qc3 Rh1 Rh3 Rh2 R3a2 Rh1 Rf3 Rhh8 Ka3 b4 Qa8 Na4 Rb2 b5 Rb3 Nb2 Rh3 Qee3 Rh2 Qee4 Bg4 Qe1 d1Q Qee2 Bbc5 b6 Qa7 Qee3 Qf3 Qee2 Qh1 Qed2 Bd1 Q2e2 Nbd8 b7 Bb6 b8Q Nb7 Qc8 Qe4 Qh3 Qea4 Qcc4 Qc6 Qh7 Qc8 Qg8 Qca8 Qcd3 Bg2 Q5c4 Bc6 Qcd5 Bb5
bnqb3R/2B3B1/2NN1np1/1B1N1R2/2BQr3/3Q1nb1/bNr1r1K1/bkq5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 Kb4 e5 f5 b3 a5 c5 d5 b6 f3 e6 a4 e7 f4 e8N d3 b7 d2 c6 g6 h5 d4 c7 a3 h6 d3 h7 a2 Bh3 g3+ Kf1 f2 Nc3 Ra4 Kg2 f1N Nd6 Be7 Be6 f3+ Kh3 f2 Qf3 d1R Bh6 Ka3 b4 Kb2 b5 d2 b6 g2 Nge2 g1B Nf4 Re1 Kg2 d1Q Bc4 Nf6 Nfd5 Nh2 Bg7 Be6 c8B Re2 Bd7 Qc8 Bdb5 Qc1 Qd3 Nf3 Rh3 Re8 h8Q Rc2 Rh5 Bg8 Rf5 Bd8 Qh4 Ree2 Qhd4 Qf4 Rf1 a1B Nd1+ Kb1 Nb2+ Qc1 Re1 Bh2 Rh1 Bg3 Rh8 f1B+ Kh1 Ne5 Kg1 Bf2+ Kh2 Nf3+ Kh1 Nbd7 b8B Rb4 Bc7 Nb8 b7 Bh3+ Qd1 Bg4 Kg2 Be6 Q4d3 Bf7 Bb3 Rbe4 B3c4 Bg8 Rg5 Bd7 Rf5 Bc6 Qd4 Nbd7 b8N Ba8 Nc6 Nb8 Q1d3 Be6 Ndb4 Bf7 Ba6 Bd5 Bcb5 Ba2 Nd5 Re1 Bc4 R1e2 Bab5 Bg3+
bkN1Bqqr/1q2b1Qn/8/3R2pn/R2Rr1N1/nR3r1b/3BB3/2BnQ2K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 Kg2 a5 b4 f5 h4 d5 e4 Kd7 c4 Kc7 e5 d3 e6 d2 c5 g3 h5 f3+ Kh3 f4 h6 a4 c6 g2 Kh2 a3 h7 f2 e7 d4 e8B d3 Nh3 f3 Nc3 a2 Qe1 d1N Be2 f1Q Nf2 d2 Ng4 f2 Ne4 Ra4 Nd6 Nd7 b6+ Kb8 b5 Ngf6 b7 Re4 Rg1 Nh5 c7+ Ka7 b8R Be7 Rb6 Nf8 Rh1 Bb7 c8R g1R Rc4 Kb8 Rd4 Rg3 Nc8 Rf3 Rg1 Qd5 Kh1 Qg8 Rbd6 Bd5 b6 Ba8 b7 Nc3 Rd8 d1N R8d5 Nb5 Rb1 a1Q Rb3 Qa7 Bd2 Kc7 b8B+ Kb7 Bh2 Qb6 Bhf4 Na3 Bfe3 Kb8 Bc1 Qb7 Bed2 Qh3+ Nh2 f1B Rg4 Qg3 Rh4 Qf4 Ng4 Nd7 Ra4 Qff8 Rad4 Ndf6 Ra4 Qgf7 Rad4 Bh3 Ra4 Rg8 h8Q Nh7 Qg7 Rh8 Nh2 Rc4 Rhd4 Q7g8 Ng4 Rb4 Rdd3 Rbf4 R3d4 Re4
3n1n2/3q4/2r2N2/nkpbR1n1/3r1N1b/Q3B2r/R1QRbQ2/1KQRn1nB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 f5 d4 a5 Kd2 h5 Kc2 a4 g5 h3 b6 Kc6 e5 a3 b7 h4 d5+ Kb5 d6 f3 e6 a2 e7 f2 e8R f4 d7 h2 g6 h3 g7 f3 Re3 Ra6 Kb2 Nc6 b8R+ Bb7 Bd3 f1R Qc2 f2 Bh7 c3+ Kb3 Nge7 g8Q Ng6 Re8 Rd1 Re4 f1B Ne2 Be7 Re5 Rd4 Be3 Nf8 Qf7 Bh4 Nf4 Be2 Rd1 h1N Be4 h2 Nd2 Nf2 Bh1 Nd3 Ne4 Ne1 Nf6 Qc8 d8Q Qd7 Qc1 c2 Kb2 Rh5 Qc8 Nd8 Rd2 Rh6 Ra8 Bd5 Qb8+ Rb6 Qa7 Rc6 Qa3 Rh5 Rb1 a1N Qg6 Nb3 Qd3+ Kb6 b5 Na5 Qg6 Rh7 Qg1 Rh5 Qf2 Rh8 Qd1 c1N Qc2 Na2 Ka1 Nc3 Rbd1 Ne4 Kb1 Ng5 Qac1 Nb3 Ra2 Na5 Bg2 h1N Qa3 Ng3 Bh1 Kb7 b6 Ka6 b7 Kb5 Qac1 Bf1 Qa3 Ne2 Qac1 Ng1 b8Q+ Ka6 Qb4 Be2 Qbc3 Kb5 Qa1 Bg3 Qac3 Rh3 Q3a3 Bh4
Rb2Bn1B/1Q6/r1Bk2bB/rQ2nq2/3n3K/1pN2n1n/Q2Q2N1/bnR2q2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 g4 h5 a4 f5 e4 b5 d4 c5 a5 b3 d6 h3 d5 h4 e5 b2 a6 f3 a7 f4 g5 b4 g6 c4 g7 c3 Ra5 c2 Bd2 c1B Be3 h2 Nd2 b1N Ra3 b3 Bd4 h3 Bc4 Qf6 Bf1 Nc6 Ne4 Bb2 Nc3 Rh5 Nge2 Ba1 Bg2 Nge7 g8Q Qf5 Qd2 Ng6 Rc1 h1Q Qh8 h2 Qh7+ Be7 Qa2 Nf8 Qg7 Ba6 Qg5 Bd3 Be3 Nd4 e6+ Kc8 d7+ Kc7 d8B+ Kd6 Bb6 Bd8 e7 Bc7 e8B Bb8 Bd8 Be4 Bf6 Qd1 Bf1 Qd3 Bg2 h1N+ Kg1 Qc4 Bh8 Nf2 Bd2 Nh3+ Kh2 f2 Be3 f3 Kg3 Bc2 Nf4 Qa6 Bh1 Qf1 Ng2 Qe6 Ra4 Bg6 Qf5 Rg5+ Kh4 Qd7 Qd3 Qf5 Qb5 Qe1 Ra3 f1N+ Bf2 Qe2 Be3 f2 Ra4 Nh2 Ra3 Rg3 Bh6 f1N Ra5 Ne3 Ra4 Ke7 d6+ Ke6 d7 Qef1 d8Q Nc4 Qg5 Kd6 Qgd2 Ne5 Ne3 Nc4 Bhc6 Qd7 Qa6 Rg5 Ng2 Rc5 Qb6 Qdf5 Ra6 Ra5 Qb5 Bc7 Bg5 Ne5 Bh6 Rb8 a8Q Rb6 Ra7 Bb8 Qb7 Rba6 Ra8 Nhf3+
1nRRr1nK/3R3b/1Q1r2n1/RNBB4/Q1nn1p2/n1b1B2q/kB5q/5b1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 a2 c5 h2 c6 h3 c7 d2 Qg3 d1N Be3 f2 Nc3 d3 Qg6 d2 Nb5 Qh4 Bg2 f1B Ne2 Ra6 Ng3 Bf5 c8R Nf2 Rg1 d1N Nh1 Bb4 Qh6 Nf6 g8R Bh7 Rgd8 Bc3+ Ke6 Nd3 Kf7 Qg4 e5 Ng8 e6 N1b2 e7 Nc4 e8Q Nde5+ Kf8 Qg3 Bd5 Ng6+ Kf7 Qh4 Rg5 Qf2 Rd1 a1N Rd4 Qa2 Kg7 Nc2 Re5 Na3 Rd1 Nc6 b8B Qb2 b7 Ka2 Bba7 Nb8 Bac5 Rd6 Qc6 Qc2 Qa6 Qf5 Qa4 Qh5 Nf2 h1Q Rd3 Qg1 Nh1 h2 Rd7 Qh3 Rd4 Na6 b8B Qf2 Bba7 Nb8 Bc1 Qfg2 Bb2 Qf2 Rd1 Qc2 Be3 Qf2 Bac5 Qc2 Nf2 h1N Rd2 Ng3 Nh1 Ne2 Rd1 Nf8 Qf6 Nd4 Qd8 Ne7 Qb6 Nfg6 Rg5 Re8 Rdd8 Nf8 Kh8 Ng8 Bf3 Qhf5 Nc7 Nb5+ Bcd4 Rd7 Bg2 Qh3 Rd2 Nbd6 Ra5 Nf5 Nb5 Rd5 Rd3 Qe2 Be4 Qeh2 Bf3 Ng7 Bc5 Nf5+ Qf6 Rd7 Rd5 Nd4 Qb6 Rc7 R5d7 Rc6 Bg2 Rd6 Bd5 Ng6+
1kn2R1r/6QK/1r1nr1Q1/1qQqBB2/6bn/NnR5/N1rpN2N/2Q1bn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 Kf5 Kc7+ Ke5 f5 b4 d3 e4 h3 g4 d4 c4 h2 c5 f3 g5 a4 c6 h4 g6 f4 g7 d2 Ra3 d3 Rb3 h3 Rc3 f2 Nf3 a3 Bb2 a2 Na3 a1N Qc1 Na6 b6+ Kb8 b5 d1N b7 Ne7 Kf6 Nc7 g8Q Nb3 e5 Ra6 e6 Qd5 Qg7 Rg8 Ba1 d2 Bd3 f1N Bf5 Rb6 Kf7 Ne8 c7+ Ka7 b8N Nde3 Na6 Ng2 Bb2 Nh4 Nb4 Nd6+ Kf6 Bd7 Na2 Nec8 e7 Kb7 Rg1 h1R e8Q h2 Qeg6 Be6 Kg5 Be7+ Kh6 Bf6 Rg2 Bd4 Rg4 Bf2 Kh7 Be1 Rg2 Rg1 Rf2 h1R Nh2 f3 Ba1 Rg4 Bb2 Rc4 Ba1 Ne7 c8Q+ Ka7 Qc6 Kb8 Qc5 Nec8 Bb2 Rg1 Ba1 Rgg4 Bb2 Rge4 Ba1 Rc6 b6 Re2 b7 Rb6 Be4 Bg4 Bf5 Re6 Bb2 Ka7 b8N+ Ka8 Q7h6 Kb7 Nc6 Kc7 Nd4+ Kb8 Rc2 Rc3 Qhg7 Rc4 Ne2 Rc3 Rg2 f2 Rg3 Rc4 Be5 Rc3 Rb2 Rc2 Rd3 Ng3 Rc3 f1Q Ng1 Qb5 Ne2 Na5 Rb4 Nf1 Rf4 Nb3 Bd3 Bf2 Rf8 Be1 Bf5 Rh8+
3qR2Q/2b1b3/4R1nN/r4B2/b1Q3Rq/nRQbnn2/kp4Kb/rN2BQ2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 Kd6 e4 Kc5 a4 g5 a5 f5 d6 b5 h5 f3 h6 f4 d3 g3+ Ke1 b3 h7 Kb4 e5 c5 a6 c4 e6 b2 e7 c3 e8Q f2+ Ke2 c2 Kf3 Kb3 a7 g2 d4 g4+ Ke2 f3+ Ke3 g3 d5 b4 d7 Ne7 d6 Nbc6 Ke4 Ne5 Rh3 N7g6 Ra6 Be7 Ne2 g1Q Bd2 g2 Be1 Qh2 Ng3 g1B Bd3 f1B Nf5 f2 Nh6 Nf3 Ke3 Bb7 Bf5 Bc6 Qf7+ Bc4 Rg3 Ba4 Rg4 f1N+ Ke4 Rg8 h8Q Qh4 Qc3+ Ka2 Qe2 Ne3 Qf1 c1B Rc6 Qc8 d8R b3 d7 Bh2 Re8 Qd8 Re6 Rf8 Qg8 Ba6 Qgh8 Bd2 Qcc4 Ba5 Qg7 Bac7 Qgc3 Rb8 a8R Rb5 Rb8 Ra5 Nd2 b1N Rb7 Qb8 d8Q Na3 Nb1 Qc8 Qdd4 Qd8 Qh8 Rg8 Qc6 b2 Rb3 Rf8 Q6c4 Rf6 Re5 Rd6 Re6 Rd1 Qb5 Qg3 Nd2 Ra1 Nb1 Ng1 Qbc5 Qh4 Qd5 Ne2 Kf3 Bd3 Qdd4 Qc8 Qdc4 Qd8 Bg3 Nd4+ Kf2 Nd1+ Kg2 Nf3 Be1 Ne3+
4N3/n1Nr1b2/6Nr/3NBqkB/1b1QrrbR/2Q3p1/B1B3bq/1K1R1n1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 d5 c4 a5 Kc2 g5 e4 f3 b6 f2 b7 g3 h5 a4 c5 d3+ Kb2 g2 c6 g4 c7 d4 b5 d2 b6 a3+ Ka2 d3 h6 g3 h7 Bb4 e5+ Kg5 e6 f5 e7 f4 e8B f3 Bg6 Qf6 Rh4 Qf5 Bh5 Ra4 Bb2 Nc6 b8N Nge7 b7 Na7 Nc3 Nd5 Nd7 Ne3 Nge2 g1Q b8N Qh2 Nf6 Be6+ Ncd5 Bf7 Bh3 f1B c8B f2 Be6 Bg2 Kb1 f1R Ne8 Rf4 Be5 Re4 Nef4 Nf1 Ng6 Rf4 Qc1 d1B Na6 Bg4 Nac7 d2+ Qc2 Re4 Qc3 d1R+ Qc1+ Rd2 Qc3 Rg8 h8Q a2+ Kc1 Rdd4 Kb2 Rg7 Rd1 a1R Kc2 Rh7 Kb2 R1a2+ Kb1 Rh6 Qg7 Rf2 Qh8 Rff4 Qg7 Bh1 Bg2 Re1+ Be4 Bg2 Bc2 Rd3 Qf8 Rdd4 Qfc5 Rde4 Qf2 Ra6 Qfd4 Rd6 Ne3 Rd8 Ba2 Rd7 Ned5 Ne3 Bd3 Rh1 Bc2 Nf1
Q1bq3q/N2b4/NqB1Q1NR/B5k1/1NBp4/bnq1r3/2n1K1bq/BR3r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kf6 g4 h5 b4 a5 c5 d5 e5+ Kg5 e6 f5 e7 a4 e8Q h3 c6 a3 b6 a2 c7 d3 b7 d2+ Kf2 d4 b5 h4 b6 f3 Qee1 h2 Bg2 f4 Bh3 Nf6 Na3 Ne4+ Kf1 f2 Bb2 Na6 b8N Nec5 b7 Nb3 Rb1 a1Q Nc2 Nb4 Bg2 h3 Qf3 d1Q Ne2 Ra3 Na6 Qd3 b8B Qg6 Bc3 Qb6 Qa8 Rh7 Bc6 Rf7 Ba7 Bd7 c8N Rf5 Ne3 Nc2 Nd5 Be7 Ndb4 Qb2 Rg1 h1Q Bb8 h2 Na7 Rf6 Bc7 Qf3 Rg3 h1Q+ Rg1 Qh5 Rh1 Qhh8 Rh6 Qa2 Ba1 Qc3 Ng1 Qab2 Qe6 Rf8 Ke2 f1B+ Kd1 f3 Ne2 f2 Nf4 Qa2 Ng6 Bh3 Ke2 f1B+ Kd1 Bfg2 Ke2 Qbc5 Ba5 Rf1 Ne5 Kf4 g5 Qcb6 g6 Kg5 g7 Bc8 g8B Bd6 Qc4 Bhd7 Qe6 Be4 Nc5 Qcb2 Qf7 Nc1+ Kd2 Re3 Ng6 Ne1+ Nc2 Nb3+ Kd1 Bh1 Na6 Ba3 Ncb4 Qc3 Qe8 Be4 Bc4 Qh2 Qf7 Bg2 Qe6 Rh3 Ke2 Nc2 Qe8 Rhf3 Qe6 Re3+
QB1BB3/1nbnN3/1b2Q1K1/1nrbN2b/nnp4R/1R2Nq1q/B1N2kr1/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 a5 e3 f5+ Ke5 h5 e4 c3 d3 c2 b3 a4 g5 a3 g6 a2 g7 f3 b6 f2 b7 f4 Nd2 f3 Bb2 c1B Qe2 h3 Kf4 h2 e5 h4 e6 h3 Kf5 Ne7+ Kf6 Rg8 Be5 Nd5+ Kg6 Qf6+ Kh5 Nb6 e7 Ra5 e8Q Bd6 Qe7 Na4 Bg3 Nd7 b4+ Kd4+ b5 c5 b8N Bc7 Rb1 a1N b6 Nb3 Nc4 Be3 b7 Qe6 Bg2 f1N Na6 f2 b8N Nfd2 Bc6 f1Q Qe8 Ne4 Nb4 Nd6 Qg4+ Qe4 Qge6 Qef3+ Kg6 Nb7 Qd8 Bf2 Ne3 Rb5 Nbd5 Q1g2 Ne7 Ra5 Na6 c4 Nb4 Rc5 Nbc2+ Kc3 d4 Kd2 d5 Nd4 d6 Nb5 Rb3 Qf1 Nd4 Ke1 Be4 Q1g2 Bb1 Qf1 Ba2 Qd3+ N3f5+ Kf1 Qe8 Be3 Be5 Kf2 Nc2 Bd4 Ne2 Be3 Ned4 Qf1 Ndc6 Bd4 Rg1 h1B Rg4 h2 Nfe3 Q1h3 Rh4 Bg2 Bf4 h1N Qd8 Rd5 Qe8 Bdb6 Ne5 Rc5 Qd8 Qe2 Qf8 Bd5 Qe8 Qef3 Bh2 Rh8 g8B Rh7 Bf7 Rg7+ Kh6 Rg3 Qd8 Rg2 Be8 Ke2 Bg3 Nf2 Kg5 Nd3 Kg6 Nb8 d7 Nb4 Bf7 Ba7 Qh8 Bab6 d8B Nd7 Be8 Nf6 Qc6 Bg4 Qg8 Nd7 Qge6 N7d6 Qa8 Nb7 Bh2 Kf2 Bf4 Ba5 Nf7 Bcb6 Bb8 Bc7 Ne5 Bab6 Qa7 Qh2 Qa6 Qhh3 Qa8 Bh5+
1rB1Nk2/1q3r2/1BB2Rb1/1n4RQ/1pb2qK1/3n1B1r/NR1r4/1Rb1r1bQ w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f5 Kf3 h5 e4 b5 d4 c5 a4 h3 g4 b3 d6 h4 g5 b2 a5 h2 g6 h3 g7 c4 a6 b4 d5 c3 e5 c2 a7 Nc6 e6 Nge7 g8R Qc7 Rg5 Ba6 Na3 b1B Ne2 Nc8 e7 Bc4 Nc3 Rb8 a8B Qb7 Na2 N8a7 Be3 c1B Bb6 Nb5 d7+ Kf7 Rhg1 h1R d8R h2 d6 Rh3+ R1g3 Bg7 e8B+ Kf8 d7 Bd4 Bd3 Bc2 Rb1 Re1 Be4 Re2 Qh1 Rd2 Rg6 Bg1 Rf6+ Bf7 Rc8 Bb3 d8Q Bc4 Qg2 h1R Qd5 Nd8 Qe5 Ne6 B4c6 Nc5 Qd5 Nd3 Bed7+ Ke7 Rg8 Be8 Rg5 Bg6 Re6+ Kf8 Bc8 R1h2 Qh1 Rhe2 Qe5 Re1 Qe2 Rh7 Rf6+ Rf7 Kg2 f3+ Kh3 f4 Kg4 f2 Rg2 f1R Qd1 f3 Rf2 Bb3 Nc4 Re3 Nd6 Bc4 Rh2 f2 Ne8 Rfe1 Qe2 f1Q Qef3 Rdd1 Rhb2 Rd2 Qh5 Qf2 Qfh1 Rh3 Bf3 Qa6 Bac6 Qb7 Rf4 Qh2 Rf6 Qf4+
1r2q2B/5Nqp/6Rb/kbbQ4/4Rb2/2nNrK2/1Q2B2r/BBNbrN1n w - - 0 1 illegal: No possible last move
3R1nK1/2B2Bn1/1RQnnkqr/7b/2b1rb2/q5Nr/QN2p2Q/R3RbQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 h5 g4 a5 b4 e5 c4 d5 c5 e3+ Kd3 h3 b6 a4 f5 h2 f6 a3 g5 h4 c6 e4+ Kc2 e2 Kb3 e1N b7 a2 b5 e3 c7 h3 b6 d3 Qd2 d4 Kc4 Qd6 Qd1 d2 Qf3 d1B Qe2 d3 Bg2 d2 Qd3 Nf3 Qc2 Bh6 Nc3 Ne7 Na4 Nf5 Nb2 Nd7 b8Q Ng7 b7 Nf8 Ne2 Nd4 Ng3 Be6+ Bd5 Bh5 c8Q d1B Re1 h1R Qc6 h2 Qg2 Bdf3 Qg1 e2 Bf4 Bg2 Qbc7+ Kg6 b8R Bf1 Rb6 Re8 f7 Qa3 Qb8 Nb5 Bc7 Nd6+ Kd4 Re7 Ke5 Re8 Rad1 a1N Rc1 Nc2 Ra1 Nd4 Ba2 Kh7 Kf6 Bc4 Bb3 Nde6 Ba2 Ng6 f8R Re7 Rd8 Ngf8 g6+ Kg8 Qf3 Bf4 Qc6 Rh6 Bb3 Nc5 Ba2 Re4 Bb3 Nce6 Ke7 Nge8 g7 Kh7 Ba2 Kg6 g8Q+ N8g7 Bb3 Qb4 Qba8 Kg5 Qa2 Qa3 Qg2 Rg1 Qh7 h1Q Qh2 Rg2 Qg1 Rh2 Qh8 Rh3 Qh7 Qg2 Qh8 Bg4 Qh7 Nc8+ Kf7 Nd6+ Kg8 Kf6 Qh8 Ba6 Bc4 Bh5 Bd5 Bc4 Qh7 Ng5 Bf7 N5e6 Qh2 Re3 Qhb1 Qe4 Qd1 Qg6 Qd4+ Re5 Qdg1 Re4
K3k3/r1bn2Q1/1QNr3N/1b3q2/1NB5/Bn1Bb1qb/1p1qR3/BN1Rn1n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 Kf3 h5 Ke4 c5 g4 f5+ Ke5 c4 d4 f3 e4 c3 a4 f4 g5 f2 g6 b3 g7 f3 a5 b2 d6 b4 Kd5 b3 e5 h3 a6 h2 a7 c2 e6 h4 e7 h3 Qe1 Rh7 Qe3 Nc6 Qe1 Ne5 Ne2 Nd3 Kc6 Nf6 g8N Nd7 Qb4 Ne1 d5 Ba6 Qd4 Bb5+ Kb7 Qa5 Ra2 Qd2 Rg1 h1N Qg7 h2 Nd4 Ng3 Nc6 h1Q Bd3 f1B Nh6 f2 Nb4 Rd8 a8Q Qh2 Qa7 Ne2 Qb6 Bh3 Ka7 f1Q Rh1 Nb8 Ka8 Qf5 Rf1 Ng1 Bc4 Kd7 Bd3 Qg3 e8B+ Kc8 Bh5 Nd7 Bhe2 Be7 Bc4 Bf6 Bed3 Be5 Ra1 Bf4 Rf2 Be3 Re2 Bf4 Nc3 b1N Ba3 c1B Qe7 Qc2 Qg7 Nd2 Nb1 Be3 Nc3 Bb2 Rd1 Qc1 Nb1 Be5 Bb2 B5f4 Ba1 b2 Qbd4 Nb8 d7+ Kc7 Qdf6 Nb3 Qa6 Qd2 Qe6 Re8 d8N+ Nd7 Qb6+ Kc8 Ndc6 Bc7 d6 Re6 Na7+ Kd8 Nac6+ Ke8 Qe5 Ndc5 d7+ Kf8 d8B Nd7 Bf6 Ke8 Be7 Rd6 Qg7 Ndc5 Qa7 Ba5 Qc3 Rg6 Na2 Rhg7 Bd6 Rb7 Qg7 Nd7 Ba3 Bc7 Nab4 Rd6 Qb6 Ra7+
qrB5/2KNnBq1/B1n1q3/4R1q1/n1b3Qp/NR1nb1Q1/Q4B2/1Qr2b1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 Ke4 g4 d5+ Kb3 a5 Ka4 h5 c4 d3 b4 h3 c5 d4 g5 d2 g6 h2 e3 d3 b6 f3 Kb5 f4 b7 f2 g7 a4 c6 a3 c7 h4 Kb6 f3 b5 a2 Ba3 Qg5 Bc5 Nc6 b8Q Be6 c8B Bc4 Kc7 Nge7 g8Q Bh6 b6 Ra3 b7 Rc3 Qa4 d1N Na3 d2 Rb1 a1Q Rb3 Nb2 Qba8 d1Q b8Q Qe1 Be2 f1N Q8a6 f2 Nf3 Nd3 Ne5 Ng3 Nd7 f1B Qaa7 Kf5 e4+ Kf4 e5 Ne4 e6 Kg3 Bf2+ Kg2 Q7a6 Rc1 Qaa8 Ng6 e7 Nec5 e8B Ne7 Bf7 Qag7 Qab4 Na4 Qh7 Ndc5 Qb1 Rf8 Bd3 Qe6 Be2 Nd3 Rg1+ Kh3 Rg4 h1Q Re4 Kh2 Re5 Qhg2 Qaa5 Kh1 Qd5 Ba6 Qg4 Bc4 Qa5 Rh8 Qd2 Qgd5 Qda2 Qa5+ Qb6 Qa8 Qe3 Qgf5 Qeg3 Be3 Bb7 Rb8 Bc8 Nf4 Bd3 Qfg5 Be2 Bd5 Bb5 Bdc4 Bba6 Nd3
7B/1N4BQ/1k6/1bNB1Qrp/n2rB1qr/qb2K3/nQ1rQ3/Rq1qbR2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 h5 c4 d5 b4 Kd7 e4 Kc7 g5 f5 e5 h3 c5 d3 c6 d4 e6 f3 e7 f4 e8B d2 g6 d3 g7 a4 Ne2 h2 Qc2 d1R Ng3 d2 Bd7 a3 Qa4 a2 Nc3 Qg5 Qa6 Qg4 Bc4 Ne7 g8Q Nd5 Nce4 Nb6 Rf1 h1R Bb2 Rh4 Nf5 Na4 Qh7 Rg8 Nfd6 Rg5 Nc5 Bg7 Bg8 Bc3 Bf5+ Bd7 Bf7 Be6 Be4 Bb3 Ndb7 Ra7 Rb1 a1Q Bfd5+ Rg7 Rc1 Qa3 Ra1 Ra8 Qa7 Na6 b6+ Kc8 b5 Nb4 c7 Na2 Qa5 Rg5 Qb4 Rb8 Qc4 Ba5 Bg7 Bb4 Nd3 Kd7 Qc2 Rd8 Ndc5+ Kc8 Bc4 Rd4 Bcd5 Rc1 Qd1 Rc2 Qe2 d1Q Na6 Kd7 c8Q+ Ke7 Qcf5 Rcd2 Nac5 Qb1 Nd8 Kd6 b7 Kc7 b8B+ Kb6 Bbe5 Ba5 Bh8 Bc3 Beg7 Bb4 Rc1 Ba5 Ndb7 Bb4 Kf1 f2 Re1 Rb2 Rd1 Be1 Rc1 Rbd2 Rd1 Kc7 b6+ Kb8 Bc4 Bc2 Ba6 R2d3 Bd5 Bb4 Nd6 Ba5 b7 Kc7 Qf3 Bc3 Ke2 f1B+ Kf2 Bd2 Qe3 f3 Be4 Be2 Bc4 Bb4 Rg1 Rd1 Qd3 Be1+ Ke3 Rd2 Rh1 f2 Bcd5 f1Q Rg1 Bg3 Rh1 Qfd1 Rf1 Qab2 Qc4 Be1 Qb5 Qa3+ Qd3 Kb6 b8Q+ Ka5 Qb2 Bb3 Ndb7+ Kb6 Qb5+ Ka7 Qc4 Kb6 Qd3 Rc2 Qd2 Bb5 Qe2 Rcd2
NRb1r1KB/1q2r1b1/1Q1B4/bb3p1N/n2R1R1B/1k3nR1/3q2n1/1B1q2Qn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 a5 e5 d5+ e6 f6 Kg6 f5 Kf7 h3 e7 f3 e8R h4 b6 d4 g5 h2 g6 h3 b5 f2 b7 a4 b6 a3 g7 a2 Bb2 Rh5 Nd2+ Kb4 c4 Bd6 c5 Rh7 c6 Ne7 c7 Nbc6 b8B Nd5 b7 Ne5+ Kg8 Nf4 Nc4 d2 Nb6 d3 Ne2 Ng2 Nf4 Nf3 Nh5 Bf8 Rg1 h1Q Re4+ Qd4 Rf4 h2 Qb1 d1Q Ba7 d2 b8B Kb3 Bd3 f1B Be4 Bd7 c8R Bfb5 Bd6 Qd3 Rc4 Re8 Na8 Bc8 Bf2 Qc3 Bh4 Qe3 Qc1 Qee1 Rb1 a1B Bbf6+ Bb2 Rd4 Qe3 Ra1 Bc3 Bb1 Ba5 Qc7 Qd3 Qb6 Qc3 Re1 Qb4 Re5 Qhe1 Re7 h1N Rb7 Qe4 Rb8 Qb7 Ra3+ Kb2 Bc7 Ng1 Re3 Qda4 Bd3 d1N Rf1 Qd2 Bd6 Nc3 Bb1 Ne1 Rff4 Qad1 Ref3 Kb3 Rfd3 Qe4 Kf7 Qc6 Rh3 Ngf3 Bfe5 Na4 Bef6 Rh6 g8Q Rh7+ Qg7 Qc7+ Kg8 Qb7 Qg1 Ng2 Rg3 Rhe7 Bh8 Bg7+
2n2NB1/4nBr1/RQRQ1KN1/2qBp3/1R1qq3/3r2Bk/rR2b1b1/br1b4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 g4+ Kg6 c5 h5 f5+ Kg5 f6 d5 b6 e3+ Kd3 a4 f7 h3 b5 Kh4 g5 a3 c6 a2 g6 h2 b7 e2 g7 e1R b6 Qd6 c7 Nc6 b8R Na7 b7 Rh7 Na3 Qc5 Bf4 Bg4 Nc4 Nc8 Qb3 Rb1 Ne2 e5 Qb2 Nge7 g8B Rg7 Nb6 Ra5 Rg1 h1B Nd7 Bg2 Bg3+ Kh3 Qb4 h4 Qb6 Rbb5 Rc1 a1Q Ra8 Bh5 b8R Ra2 Ra6 Rb1 Rc2 Bg4 Rb2 Bf3 Kd2 d3 Nf4+ Kg4 Ng6 h3 Be2 d4 Rc1 h2 Bd1 h1Q Bb3 Qh4 Bd5 Be2 Rcc2 Kh3 Rc3 Nd6 c8B Qe4 Bcb7 Ndc8 Be6+ Nf5 Bbd5 Bd6 f8Q Bc7 Qa5 Bb6 Bef7 Nfe7 Qd8 Ba7 Ndf8 Bb6 Qd6 Ba7 Rc1 Bb6 Ke1 d2+ Kf2 d1R Rb7 Ba7 Qab6 Rd3 Rc4 Re3 Rc7 d3 Rc6 d2 Rca4 d1B Rab4 Rd3+ Ke1 Rd4 Kf2 Qf5+ Ke3 Qfc2 Bf3 Rd3+ Ke4 Qf2 R2b3 Qc4+ Qbd4 Nd5 Kf5 Nde7+ Kf6 Qe3 Qf4 Bd4 B3d5 Qe4 Qf2 Bc3 Qa7 Qc5 Qb6 Bd4 Rc3 Qb2 Rc2 Qbc3 Rd2 Q3c4 Rc2 Ba1 Rcb2 Qc4d4
B4q2/q1BB1K2/1p3R2/k1r4r/1r2bnB1/n3R1q1/nbRR1rQQ/1n2NN2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 Kb6 g4 f5 e4 b3 d4 b2 a4 f3 d6 c4 g5 h3 d5 h2 e5 f2 d7 c3 e6 f4 e7 f3 e8B c2 g6 Qe7 d8R Ra5 g7 Rc5 Bf7 Bf5 d6 Na6 d7 Ka5 Ne2 b6 Be8 Nb4 Bf4 c1N Nd2 b1N Ra3 Nc2 Re3 Nca3 Ng3 Na2 Bh3 f1R Bg4 f2 Qc2 Nf6+ Kg5 h5 g8Q h4 Rc8 h3 d8R Qh7 Bc7 Nh5 Bd7 Bg7 Nf3 Nf4 Ne1 Bb2 Qd5 Qf7 Qg2 Rh4 Rf8 Qe7+ Rf6 Qd6 Rg1 h1Q Qh2 Qhd5 Rg2 Qa8 Rd8 Qa7 Rc8 Kb4 a5 Qe5 a6 Ka5 Qe4 Qd6 Qa8 Be4+ Qd5 Qf8 Rd8 Rh1 Rc8 f1R Rd2 Rf2 Nf1 Qb7 a7 Qa6 a8B Qa7 Qg2 h2 Qe5 Rh6 Rf7 Rh5+ Kf6 Rg1 Rd6 h1Q Rd2 Nd5+ Ke6 Qh3 Qeh2 Qg3 Rf6 Rh1 Qhg1 R1h4 Q1h2 Qfd6+ Kf7 Nf4 Bdf5 Qd8 Bd7 Bf5 Rdd6 Ne2 Rd2 Re5 Bh3 Rb4 Bb8 Be4 Rcc2 Nf4 Bg4 Rc5 Bc7 Qf8+
4k3/1bQ2r2/p1R2BK1/nqQrnN2/1bnBr3/2RN1B2/4Q3/q1nQrB1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 c4 h5 g4 h3 e4 a6 b4 h2 e5 f3 g5 h4 c5 f2 c6 f4 e6 h3 b6 f3 b7 Bc5 c7 Qd7 g6 Nf6 b5 Qc6 b6 Bb4 e7 Rf8 g7 Rf7 g8B Nfd7 Na3 Qb5+ Nc4 Nc6 b8Q Na5 b7 Ra7 Ne2 Ne5+ Kc2 Rf4 Ra3 Re4 Rc3 d3+ Kd2 d4 Nf4 Ra8 Rg1 h1B Rg6 h2 Bd5 Ra7 Rb6 Bd6 Rc6 Bb4 Be2 f1R Ne3 f2 Nf5 Re1 Bb2 f1R Bf3 Rg1 Bc4 Rg7 Ba1 Rf7 Bb2 Ra8 Qa7 Rb8 Qc5 Ra8 b8B Bb7 Ba7 Rd8 Bb6 Rd5 c8Q+ Rd8 Qc7 Rd5 Kc1 d2+ Kc2 Rg7 Nd3 Rf7 Qe2 d1N Kd2 Ne3 Qd1 Bg2 Ba7 h1N Bb6 Rg1 Ke2 Ng3+ Kf2 Ne2 Ba7 Nf4 Kg3 Re1 Kh4 Ne2+ Kg5 Bh1 Kh6 N5g4+ Kg6 Nc1 Nf2 d3 Ba1 d2 Bf1 Nec4 Nd3 Nf2 Rb3 R1e3 Bf6 Ng4 Rc3 Re2 Q5d6 R2e3 Bad4 Re1 Qc5 Nge5+ Kh5 R4e2 Kh6 Ng4+ Kg6 Re3 Qh2 Kd7 Qhe2 Re4 Qb3 d1Q Qbc2 Ncb3 Qcd2 Qa1 Qdd1 Nc1 Rc8 Ke6 e8Q+ Re7 Qd8 Rf7 Qdb6+ Kd7 Rc6 Ke8 Qc7 Nge5+
1Bqbkr1N/bp1nr3/B1nbB3/1Q1rN1q1/B4r2/R6n/5NK1/1bR3NQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 f5 a4 d5 h4 g5 c4 f4 e4 d3 c5 d2 h5 f3 a5 b3 e6 d4 e7 d3 a6 g3+ Ke3 g4 h6 f2 a7 b2 c6 g2 h7 g3 Kf3 Nd7 Nc3 b1Q e5 Qb5 Qe1 d1N c7 d2 Ne4 Qc6 Ba6 f1R+ Qf2 Re1 Qf1 Nf2 Ra3 d1R Bf4 Nh3 Qb5 Qf6 Nf2 Qg5 Qd5 Rb8 a8N Re4 Qc6 Rd5 Nb6 Re2 Nc4 Ra8 Bb5 Ra4 Ba6 Re1 Be3 Re2 Ba7 Re1 Bb8 Rb4 Ne2 g1B Kg2 Bh2 Qb5 Bg7 Ng1 Bf6 Na5 Rf4 Nc6 Nh6 Qf1 Rf8 h8N Nf5 Qb5 Nd4 Qb1 Nb6 Qc1 Be6 c8B Bf5 Be6 Bb1 Ne2 Nc8 Ba7 Rd7 Bb3 Rf5 Rg1 Rd1 Kh1 Nb6 Bbc4 Rc7 Bg8 Kd7 e6+ Kd6 e8B Qc8 Rf1 Bd8 e7 Rd3 Re1 Rdf3 Bd7 Rd5 e8Q R3f5 Bge6 Rf3 Nb4 R3f6 Bdb5 Re7 Ba4 Rf3 Qb5 Nc6 Nbd3 R3f5 Bf7 Kd7 Be6+ Ke8 Rg1 Nd7 Qf1 Rd4 Qg2 Rfd5 Rc1 Qe5 Bb8 Qg5 Ng4 Bg1 Qh2 Be3 Qg1 g2+ Kh2 Rdf4 Ndf2 Bc5 Qh1 Bd6 Ne5 Rc5 Nfg4 g1B+ Kg2 Bd4 Ng1 Rd5 Ra1 Qf5 Ra3 Ba7 Nf2 Qg5+
Q6B/b2kn1Q1/2p3NB/1qn1R2B/2Bb1nn1/1nr2KNb/3R1bn1/1Q4rQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 g4 h5 e4 a5 b4 h3 d4 a4 b6 h2 g5 a3 d5 a2 g6 c6 d6 c3 b7 c2 b5 f3 e5 f4 b6 h4 g7 h3 e6 Qg5 e7 Qb5 Nd2 Nd7 b8Q Ra3 b7 Rc3 Qc7 Nc5 Qb8 Kd7 Ba3 c1B Ne4 Be3+ Ke1 Bf2+ Kd2 Rh4 Bc1 Rg4 Ne2 Rg1 Rb1 a1B e8B+ Ke6 d7 Ne7 d8B Bb2 Bh5 Kd7 g8Q Bg7 Bb6 Bgd4 Bg2 Bh8 Bc7 Re1 Ng5 Bh4 Nd4 Ba3 Rb2 f2 Nf7 f3 Rb3 Qb4 Bf1 Na4 Ne6 Bd4 Qh7 Ke8 Rg1 h1N Bd3 h2 Bc4 Ng3 Neg5 h1N Qa8 Ne2 Bb8 Bh3 Ne4 Kd7 Rb2 Qb6 Rf1 Bac5 Be5 Qa6 b8Q Ba7 Rg1 Nc5 Nh8 Qa5 Qf8 Qb5 Rg5 Rf1 Qg6 Re1 Rf5 Rf1 Qg2 Rg1 Ng6 Bg3 Qc2 f1N+ Kd1 f2 Qb1 Bh4 Bh6 Nf4 Bh8 Ne3+ Kd2 Bg3 Re5 Bh4 Qh2 Neg2 Qg7 f1N+ Kd1 Be1 Ng3 Nd2 Rc2 Ndb3 Rd2 Nd5 Ke2 Nf2 Qh1 Ng4 Qa2 Bef2 Qb1 Rcc1 Kf3 Ndf4 Bg8 Rc2 Bc4 Rc3+
4NRn1/1b1R4/bR1n1b2/1rQQ2rn/1NN1nr2/1kpRb2N/7q/B1rK1B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 a5 d4 h5 b6 f5 b7 c5 g5 c3 g6 c2 e5 Kd5 e6 a4 g7 h3 b5 c4 b6 h2 e7 a3 e8N f3 Nd2 f2+ Ke2 f4 Nd6 h4 Nb5 a2 Nb1 f3+ Kd2 h3 Nd6 Qh4 Ne2 Nc6 b8N Bb7 Nb5 Na5 Ng3 Bc5 N1a3 Rh5 Nc6 Rg5 Ne4 Rb8 Rb1 a1B Bb2 c1R Nbd6 Rc3 Rg1 h1N Ne8 h2 Qc1 Rc2+ Kd1 Ng3 Rh1 Ba6 b7 Nh5 Rg1 h1N Rg3 Qh2 Bc3 Ba7 Rb6 Bb2 Rh3 N1g3 Qe3 Ra8 b8Q Nb7 Qd8+ Nd6 Qc1 Bb7 Nb4+ Ke6 Qe3 Rc8 Qc1 Rcc5 Qe3 Rb5 d5+ Kf7 Qc5 Ba1 Bg2 f1B Nf2 Nge4 Qa8 Bd3 Bf1 Ke7 Rg3 Bb2 Nh3 f2 Be5 Bd4 Rf3 Be3 Bb2 c3 Nc4 Bb8 Qa5 Bc7 Qa2 Bd8 Ba1 Kd7 Rf8 Bf6 Qa5 Nc8 d6 Ke6 d7+ Ncd6 Nd2 Bc4 d8R Bd3 Qc6 Ke5 Rd7 Kd4 Qa8 Rbc5 Qa5 Bda6 Nc4 Rcd5 Qca4 Rb5 Qa3 Ne7 g8R Kc5 Rg7 Ng8 Rd8 Kd4 Rgd7 Kc5 Qc1 Kd4 Qd2+ Kc5 Be2 f1R+ Qe1 Nd2 Re7 Nf7 Na2 Rf4 Rd3 Nd6 Qa3+ Rb4 Rd7 Bb5 Qh1 B5a6 Rc6+ Kb5 Bf1 Rbb2 Qc5+ Ka4 Qf3 Rb5 Nb4 Kb3 Qfd5 N2e4 Rb6 Rc1#
Nr4Nq/1p4r1/1B1n2bb/B3r1QR/2R2BRr/bR1n1K1k/2B2n2/1Q2b2n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 g5 h4 f5 a4 c5 e4 g3+ Kf3 c4 e5 c3 d6 Ke6 h5 g2 d7 g4+ Ke2 f3+ Kf2 f4 h6 Kf5 d5 b3 h7 c2 d6 b2 e6 Nc6 e7 Nf6 e8Q Rb8 a5 Ne5 a6 Bh6 Nd2 b1R a7 Rb5 Qe7 Ne8 Ne2 g1N a8R Rd5 Nc3 g3+ Ke1 Kg4 Nb5 g2 Kf2 Rg8 h8R Rg7 R8a3 Rc5 Bd3 Nh3+ Ke1 g1B Rb3 Rc4 Rg8 Nf2 Ne4 Ra4 Bd2 c1B Bc2 Ba3 Rc1 Ned3+ Kf1 Bh2 Nc7 Bg3 Rh5 Bh4 Na8 Kh3 Be3 Ra5 Bd2 Re5 Qg5 Qf6 d8B Bf5 d7 Bg6 Bb6 Nd6 Rd8 Qf8 Nf6 Qh8 Bba5 Ng4 Be3 f2 Ke2 f1N Kf3 Ngf2 Ng8 Ng3 Re8 Ngh1 d8B Rd5 Bdb6 Rb5 Re4 Re5 Ke2 f3+ Kd2 Ng4 Bf4 f2 Ke2 f1R Qe1 Rg1 Kf3 Ngf2 Rc4 Rg2 Qe4 Rg4 Rg1 Bc5 Qe1 Ba3 Qb1 Nfe4 Qf5 Nb5 Rg5 Be1 Qf6 Rh4 Rh5 Nef2 Rg4 Nd6 Qe7 Bc1 Qg5 Ba3
1BRQq1Q1/7N/nBrr1rK1/1Rn1N3/B6b/nQ2b2p/1p1Qn2n/5bBk w - - 0 1 illegal: No possible last move, all moves rejected
n1R1Nbrr/2QNk1B1/Q2n2n1/K3n1qB/N3b2R/rp2p3/NR5n/1b2R3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 c5 Kd2 b5 f4 h5 a4 e5 g4 c4 a5 h3 g5 h4 f5 h2 d6 h3 g6 b3 Kc3 b2 Kb4 c3 g7 c2 f6 e3 d5 e4 f7+ Kd7 a6 e2 a7 e1N Be2 e3 Nc3 b1N Qd3 Nf3 Bb2 c1R Na4 Qg5 Ka5 b4 Qa6 Ne7 g8N b3 Bg7 Ne5 Bh5 Na3 Ne2 Nb5 Nec3 Rg1 Re1 N7g6 Nf6+ Kd8 d7 Nd6 Na2 Ke7 d8R Bf5 Nd7 Bb1 Rc8 Rg4 Nf6 Nbd7 Ne8 Nb6 Rc2 Rg1 Rb2 Rg2 Rhf1 h1N Rf4 h2 Rh4 Rb8 a8Q Nf2 Qc6 h1B Qc5 Na8 Qcc6 Nde4 Qcb6 Nfg4 d6+ Ke6 d7+ Nd6 d8R Ke7 Qc5 Nh2 Rc8 Rg1 Qc2 Be4 Qc7+ Nd7+ Qb5 Rb6 Bh6 Ra6+ Kb4 Qe5 Qe2 Nf4 N4c3 Bg7 f8N Ra3 Qa6 Rg6 Na4 Qg5 Qb8 Ne5 Nd7 Bf8 Ka5 Rg7 Qc7 Rgg8 Bg7 Nfg6
K5BQ/b1nR2rQ/brN2R2/1rB1n1Bq/k1p5/1R3Nb1/1pbbB2n/6R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 b5 d4 f5 e4 c5 a4 g5 a5 b3 h5 b4 e5 c4 h6 f3 Ke3 b2 a6 g3 d6 Kc6 e6 Kb5 d7 g4 e7 f4+ Ke4 b3 Kd5 g2 e8B g3 a7 f2 h7 f3 Ne2 g1B Bh5 g2 Qd3 Ba6 Bf7 Bb4 Be3 Nh6 Ra3 Qe8 d8B Rg8 h8Q Ng4 Qdh7 Rg7 Bg8 Bh2 Rg1 Bg3 Bdg5 Ne5 Nd2 Bc3 Kd6 b1R d5 Qh5 Nd4+ Kb4 Bd3 f1N Be2 f2 N2f3 Bd2 Nc6+ Kb5 Bc5 Nh2 Qh6 f1B Q6h7 b2 Rc3 Ka4 Rb3 Rg6+ Kc7 Rf6 Na5 Rb6 d6 Ra1 d7 Ra3 Re3 Rab3 d8R R3b4 Rd7 R4b5 Rh1 g1B Rb3 Bge3 Nc6 Bh3 Rg1 Bf5 Re7 Bc2 Re6 Nbd7 Rf6 Rf8 a8R Rf7 Rf8 Rg7 R8f7 Nf8 Re7 Bb7 Kb8 Ne6 Ref7 Ba6+ Ka8 Nc7+ Ka7 Nd3 Rd7 Rb8 Bb6 Ne5 Bd4 Ne8 Bb6 Rb7+ Ka8 Bef2 Bd8 Ba7 Be7 R7b6 Bc5 Nc7+
QBN2rB1/8/3q4/RnNr2r1/1p1bp1b1/Nn1b2q1/1QK1N2k/R1b1bB1B w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 Kg6 a4 Kf5 f4 h5 d6 e5 d7 b5 d5 c5 d6 c4 a5 b3 a6 h3 a7 b4 g3 c3+ Ke1 h4 Ra6 c2 Kd2 b2 Ne2 Kg4 f5 e3+ Kd3 h2 f6 h3 f7 Rh5 Ng1+ e2 Kd2 Nh6 Rb6 Nf5 Rb5 Na6 Ra5 Nc5 Na3 Bg7 f8N b1Q Ng6 Rg5 Ne7 Nd4 Bb2 Qb6 d8Q Nb5 d7 Qd6+ Bd4 Rb8 a8B Qb3 Qa1 e1B+ Kc1 Qg8 Ne2 Nb3+ Kb2 c1B+ Kc2 Ba6 Ba7 Bf6 Bag2 e4 Nc8 Bd4 Qb2 Qgg6 Rg1 h1B Qg8 h2 d8N Qg7 Nb7 Ra8 Nc5 Qge5 Nb6 Rf8 Nc8 Qf4 Bb8 Qf2 Bh3+ Kf3 g4 Qfg3 Bhg2+ Kf2 Bh3 Bf3 Bhg2 h1R Qh8 Rh2 Bh1 Rhh5 Qg8 Rd5 g5 Bg4 g6 Rhg5 g7 Nc7 Qh7 Bc4 g8B Nb5 Qb7 Qg2 Nc3 Kg3+ Ne2+ Kh2 Qa8 Qgg3 Bfg2 Bef2 Rd1 Be1 Bf1 Bf4 Rb1 Bc1 Ra1 Bd3+
2Bqq3/R2R2R1/N2r1n1b/3N3Q/pN4p1/3RN1qq/q3QBbr/n1k1bK2 w - - 0 1 illegal: No possible last move, all moves rejected
2nQ2R1/4q1qr/n3b3/1kpRRB1q/2q3B1/2R1N1pB/1q1br1n1/1NBKQ3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 e4 g5 h4 b5 a4 c5 h5 f5 d6 Kc6 h6 f3 h7 f4 d7 b3 a5 f2+ Ke2 b2 a6 g3 e5 b4 e6 g2 d5+ Kb5 d6 g4 e7 f3+ Kd3 b3 e8B Bh6 a7 Bd2 Bh5 Na6 Rh3 Ne7 Ne2 g1Q Qe1 g3 Nf4 Qh1 Bg4 Qf8 d8R Be6 d7 Qg7 Rh6 Nc8 Bfh3 f1N Nd5 f2 Ke2 Ne3 Ra3 Ng2 Rh5 f1Q+ Kd1 Qc4 Ne3 Rb8 a8B Rb7 Rg5 Re8 Bf5 Re7 Bhg4 Qh5 Rg8 Re8 d8Q Rf7 h8R Ree7 Bh7 Rf2 Bae4 Re2 Rd5 Qhe5 Bh5 Kc6 Nc3 b1Q Qf8 Qh6 Qd8 Qeg5 Bhf3 b2 Bhg6 Qh1 Rh5 Qa1 Bc2 b1Q Bf7 Bg4 Be6 Rh7 Rb3 Qba2 Nb1 Qag7 Rc3 Q5e7 Rhe5 Qh5 Bce4 Qb2 Bd3 Nf4 Bg2 Bf5 Bh3 Kb5 Bc2 Ng2 Be4 Bg6 Beg4 Bf7 Bef5 Be6
QK3n2/rN1QB3/1qq1rp1r/rBnn1r2/R1p2R2/2RR4/7N/NN2kbb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ Kg3 b4 Kf2 d4 a5 g4 c5 d5 h5 g5 a4 g6 h3 b6 f3 g7 h4 b5 a3 b7 c3 b6 h2 d6 h3 d7 c2 Bb5 a2 Bg5 c1R Be7 f6+ Kd6 c4 e5 Ra7 e6 Na6 b8R Rh5 b7 Nc5 Kc6 Qa5 d8R Rf5 Qd7 Re1 Ra8 Re4 b8N Ke1 Na6 f2 Nb4 f1N Rb8 Ne3 Nc2+ Kf1 Rb6 Nd5 Nf3+ Ke2 Rd1 h1R Rd3 h2 Rd4 Re3 Rf4 Bb7+ Kd6 Bc6 Ra6 Qb6 Ra4 Kf1 Nc3+ Re1 Rc1 a1R Nb1 Ra3 Na1 Kf2 Rb4 R3a5 Ra4 Re3 Rc3 Ke2 Ne5 Ke1 Ng4 Nc7 Qe8 Bg2+ Qc6 Bf1 Rd7 Nh6 g8Q Nd5 Qf7 Ree5 Qe8 Ng8 Qa8 Rg1 Rd8 h1Q Nh2 Rg6 Rd7 Rh6 Rd8 Nb7+ Kd7 Re3 Kc8 Nc5 Qd7 Qg2 Bd6 Qf3 e7 Re6 e8N Qe4 Be7 Qh1 Qdb7 Qe4 Kb8 Qh1 Bd6 Nge7 Rd7 Ng6 Be7 Qg1 Nd6 Qc6 Qc7 Qe3 Nb7 Qf2 Bd8 Be7 Qd6 Nf8 Qc7 Bd6 Be7 Be5 Rd6 Bd4 Qd7 Qb2 Qe8 Bg1 Qd7 Ne3 Rdd3 Nd5 Ba6 Qbb6 Bb5 Rh7 Rf2 Rh8 Rf4 Rh6
1Qb1nn1k/1b1Q2p1/Br2q3/5NNr/3qR1b1/r3Np1Q/R4Q2/b1B1K1bN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 a5 c4 f5 b4 Kf7 h4 d5 b6 g3 b5 a4 h5 d3 b7 f3 b6 d4 e5 g2 c5 a3 h6 f4 h7 a2 c6 Bc5 c7 Qd7 Nh3 g1R Na3 Nf6 Nc2 Ra3 Ne3 Ne8 Nf2 Qe6 Rh4 Rg6 Nh1 Nd7 b8Q Nf8 b7 Rf6 Qa7 f2+ Kd2 Kg6 b8Q Kf7 Be2 f1B Ke1 Bg2 Qda4 Bgb7 Qd7+ Qe7 Bf1 Rb6 e6+ Kg6 Be2 Qf7 e7 d2+ Kf1 d1B Ba6 d3 Ke1 Bh5 Qh3 f3 Re4 Bf5 c8Q Qe6 Qd7 Bhg4 Qbg3 Kf7 Qab8 Kg6 Qf2 Bd4 Rb1 a1B Rb2 Bc5 Ra2 d2+ Kf1 Nf6 e8N d1Q+ Qe1 Qdd5 Qf2 Qd4 Nd6 Ne8 Ke1 Qec4 Qdd8 Bfc8 Ndf5 Qe6 Qd7 Bd6 Bf1 Bh2 Ba6 Bg1 Qhg2 Rg8 h8N+ Kh7 Nf7 Rh8 Qh3+ Kg8 Ng5 Rh5 Nf7 Kh7 Ng5+ Kh8
N2r1k2/2qnp3/7K/bQ2n2b/n3n1Br/pB1Rqn1R/2Q1Qq2/N3B1QB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 a5 f4 d5 c4 h5 g4 e3 Kf3 e2 b4 e1Q f5 h3 Kf4 a4 Kg5 d3 f6 d2 f7+ Kd7 c5 h2 c6+ Kd6 b6 h4 b7 d4 b5 a3 c7 d3 b6 h3 Ne2 Rh7 Qc2 d1N Nec3 d2 Na4 Nc6 b8Q Ne3 b7 d1N Bd2 Kd7 Bg2 Nd4 Qa7 Rh4 b8Q Bg7 f8Q Nc3 Qf3 Ke8 Nb6 Na4 Qe2 Qf2 Be1 Kf8 Nd2 Nf6 Rd1 Nd7 Nb3 Nc4 Na1 Nce5 Rd3 Bb7 c8B Bf3 Qbb7 Qc7 Qba6 Bh8 Qb5 Rb8 Na8 Bg7 Rf1 h1Q Rg1 Qh2 Bh1 Qhg3 Rg2 h2 Qab6 Qh3 Rg3 Ndc5 Bf5 Ncd7 Be6 Rd8 Bb3 Qhg2 Rh3 Qgg3 Q6c5 Be4 Qa7 Bg6 Qab6 Bh8 Qa7 Bh5 Kh6 Bf6 g5 Ndf3 g6 Qgg1 Qae3 Qgg3 Qg5 Qe3 Be6 Qgf2 Bg4 Bh8 Bg2 h1N g7+ Kf7 g8B+ Kf8 Bd5 Ng3 Bh1 Ne4 Bb3 Nf7+ Kh7 Bc3 Qg6 Nf7e5 Qg5 Qd4 Kh6 Ba5 Qge3 Nfd2 Qg3 Ndf3 Qg1 Qde3+
R7/1pbQKQ1n/1r4B1/1r1QN2N/n1N1R1QB/N1k1n2p/q1b4b/n4q1n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 d4 h5 g4 f3 a4 f2 a5 c4 e3 c3 a6 b3 d6 c2 Kd5 b2 e4 Nd7 a7 Nc5 d7 Nb3 Bd3 f1N Nf3 Rh6 Qe2 Bg7 Kd6 Qa5 d5 Qa4 d8N Bf5 Ne6 Bh8 Ra2 Na1 Nf4 Rg6 Bd2 c1B Be1 Qc4 Ra5 Qa2 Na3 b1N Qg2 Rc8 a8N Rc5 Nb6 Rb5 Ra8 Nc3 Nbc4 Na4 Bb1 Bd2 Bf2 Ba5 e5+ Kg7+ e6 Kf6 Rh3 Ne3 e7 Bd3 e8Q Bc7+ Kd7 Bg7 d6 Bh6 Ne6 Bf4 g5+ Kf5 Bc2 Nf6+ Ke7 Ke4 d7 Nh7 d8Q f5 Ng7 Rgb6 g6 Bfe5 Qdd7 f4 Nh2+ f3 Qf7 Bg3 Ng4 Bge5 Be1 Bg3 Qe2 f2 Nge5 Bf4 Rg3 f1Q Rg5 Bg3 Rg4+ Bf4 Qdf5+ Kd4 Qd7+ Rd5 Bf2 Kc3 Qf3 Rdb5 Q3d5 h3 Bg3 h4 Nh5 h2 g7 h1N g8Q h3 Bh4 Bg3 Qg5 Be2 Bg6 Bd3 Re4 Bh2 Qgg4 Bc2
2N2q1R/p2B2r1/1B2qqk1/3RQrb1/2b3nb/p1B5/B1Q2nQQ/KN2b2b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 e4 c5 h4 g5 b4 f5 d4 Kf7 Kd2 g3 Kc2 g2 Kb2 f3 b5 c4 b6 f2 b7 g4 d6 g3 e5 f4 d7 f3 e6+ Kg6 e7 Na6 b8Q Nh6 d5 Ng4 d6 Rg8 Bd2 Rg7 Bc3 Bb7 Ne2 g1Q Nd4 g2 Nf5 Nb4 Qc2 Nd3+ Ka2 Qb6 d8B a3 d7 Qe6 Qh2 Bd5 Be2 f1B Bb6 Qd4 d8Q g1B Nd6 f2 Nc8 Qdf6 Qg2 Bh2 Qc7 Bg3 Qe5 Rb8 Bf3 Rb7 e8B+ Rbf7 Ba4 Be7 Bd7 Be2 Rd1 f1Q Rd2 Ba8 Bd5 Be1 Rd1 Q1f5 Qeh2 Nf2 h5+ Kg5 h6 Kg6 h7 Bc6 Bd2 c3 h8Q Ba8 Bb3 Bc4 Qe5 Bf3 Qhh2 Bc6 Bh6 Ba8 Rd5 Bb7 Bd2 Rf8 Qb2 c2 Bc3 c1B Qc2 Be3 Nd2 Bf4 Rd1 Bd8 Nb1 Bg5 Ka1 Be7 Ba2 Rff7 Rb5 Be4 Rbd5 Bf3 Qgg3 Bh1 Qgg2 Bd6 Ba4 Qfe7 R1d3 Rf8 Qd4 Bg3 Qe5 Qf3 Rd8 B3h4 Bd7 Rff7 Rg8 Qf8 Rh8 Qff5 Qc7 Qfe5 Rd5+ Rf5 Qb8 Q5f6 Qbg3 Qee8 Qe5 Qee6
1N1n2Rn/1bB3N1/3p1n2/3n2nN/3kBrNR/nQb5/Q1qBnK1p/B2r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 b4 Ke6 g4 Ke5 c4 a5 b6 h5 g5 f5 b7 f3 c5 d6 c6 a4 c7 h3 b5 h4 b6 h2 g6 h3 g7 f2+ Ke2 f4 Ra2 a3 Nc3 f3+ Kd2 d3 Ke3 d2 Nd5 Ne7 g8N Bg7 Ba6 f1N+ Kf2 Nbc6 b8B Ng3 b7 Ne2 Ba7 Ng6 b8B Bb7 c8Q Rh4 Bc7 Rf4 Ne3 Nh8 Qd7 Qc8 Nf6 Nd8 Q7a4 Qf5 Rc2 a2 Nh5 a1N Bd3 Rb8 Rc4 Nc2 Qa2 Na3 Qdb3 Bf6 Rc5+ Kd4 e5 Qe4 Bb1 Qc2 e6 Ra8 e7 d1N+ Kf1 f2 e8N Rc8 Bd2 Ndc3 Ng4 Nd5 Neg7 Ra8 Bab6 Ra5 Rc6+ Rc5 Bba5 Rc3 Ra6 Rd3 Ra8 Be5 Be1 Rd1 Bd2 Nf6 Rc8 Nc3 Rb8 Ncd5 Nf3+ Kc5 Ke2 Bc3 Nfe5 f1N Nd7+ Kd4 Rc8 Ba1 Nb8 Bc3 Rg1 h1N Bf2+ Ke4 Bd4 Nh2 Rg2 Nf3 Rh2 Ng3+ Kf2 Ne2 Be5 Bb4 Ba1 Bc3 Rh1 Kd4 Rh2 Ne6 Rg8 Nd8 Rh1 Qc1 Be4 Qc2 Rg1 h2 Rg3 Ba8 Rh3 Bb7 Rh4 Ng5+
1r2b2K/1B1r3n/4qqrk/1nQ3R1/Q1BQ1pB1/1qQ4p/4N1n1/BNb2R1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 f5 g4 Kf7 e4 Kg6 c4 h3 b4 h4 g5 d3 b6 d4 b7 f3 b5 d2 c5 f4 c6 h2 b6 a4 c7 a3 Bb2 f2 Be2 f1N Bg4 a2 Ne2 d3 Rg1 Bd7 c8B Na6 b8Q h1Q b7 h3 Qc7 Rb8 Qc5 Rh6 Bd4 Kg7 g6 Nc7 Qdc2 d1Q Q2c3 d2 Rg2 Ra8 b8Q Ne3 Bb7 Be8 Qba7 Nb5 Ke6+ Nf6 e5 Rb8 Qab6 Kh8 g7+ Kh7 g8B+ Kg6 Rg3 Ng2 Bf7+ Kg7 Kf5 Nh7 Bc4 Qc8+ e6+ Rf6+ Ke5 Rh6 e7 Qb3 Qbd6 d1R Qdb6 Bh5 e8Q Rg6 Qa7 Qd7 Qd8 Kh6 Qa4 Qc6 Qf6 Bd6+ Ke6 Qa6 Kf7 Be7 Be5 Rd7 Qfd6 Qb6 Qdd4 Qc6 Nd2 Qc8 Rf1 a1Q Nb1 Qab2 Bgf3 Qc6 Rg5 Q2a2 Bh8 Qa1 Bg4 Qe4 Qce5 Ba3+ Qe7 Bc1 Be5 Rdd8 Qec5 Qab2 Bf6 Rd7+ Qe7 Rc7 Qcd3 Bd2 Qdd7 Bc1 Qc5 Qbe5 Qc2 Qd6 Ba1 Qed4 Qe7 Rd7 Qc3 Qe3 Q5d4 Qde5 Bc8 Rgd6+ Kg8 Be8 Bb7 Qf5 Qee5 Rg6+ Kh8 Qf7 Qf5 Qee6 Qfc5 Qff6+
3Rb3/1QbR1r2/Bn1r1r1Q/1B2Bk2/3p1p1q/K4NBb/n1NqRb2/2R4n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 e4 h5 g4 a5 c4 d5 Kc2 h3 Kb3 f3 c5 d3 c6 h4 c7 f2 b6 h2 b7 d2 b5 a4+ Ka2 h3 b6 a3 Be2 f1B Bb5 Bd6 Qe2 d1R Nf3 Ra6 Bf4 Rh7 Qe3 Nd7 b8B Ne7 b7 Nb6 Bg3 Bd7 c8B Bc7 g5+ Ke6 g6 f5 e5 f4 g7 Kf5 g8R Nc6 e6 Rf7 e7 Nb4+ Kb3 a2 e8R Rd2 Na3 Bg2 Rae1 a1B Re2 Na2 Nc2 Bd4 Rc1 h1N Rg7 h2 Qe7 Rd1 Qh4 Bh3 Qh6 Bf2 Kb2 Qh4 Rd8 Rd3 Re6 Be8 Re2+ Nd7 Rh7 Raf6 Rg7 Rd2 Ka3 Rd1 Ba7 Rd4 b8Q Rd1 Bb7 Nb6 B7a6 Bg1 Re1 Na4 Ne5 Rd7 Bc5 Nf2 Ba7 h1Q Re2 Qh2 Rd2 Nh1 Bd4 Nb6 Nf3 Qe2 Qa7 Bf2 Qb7 Qe1 Re7 Qe2 Re3 Rdf7 Be5 Qe1 Rde2 Rd4 Rd3 Qd2 Bc6 Rc4 Bcb5 Rcc6 Rc3 Rce6 Rc6 d4 Rcd6 Bf1 Rd5 Bh3 R5d7 Rd6
2B4N/3nk1B1/3p1b2/R3p2K/1rq1nq1Q/1rnq1rBb/N1N2BR1/3N1Q1n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 a5 f4 h5 b4 h3 g4 e6 c4 a4 g5 e3 Kf3 h4 Kg4 e2 b6 e1Q c5 d3 f5 h2 f6 d2 b5 a3 g6 a2 g7 h3 b7 Qc7 c6 Rh6 b6 Qe3 f7+ Kd8 Ne2 Ne7 g8N Ng6 Rg1 h1R Nd4 h2 Rg2 Qee5 Nc2 Rh5 Ne7 Nh4 Ng6 Be7 f8B Nf3 Bg7 Ng5 Ba6 Rf1 Nh8 h1N Nc3 Rf3 Qf1 d1N Be3 Rhh3 Bf2 Rhg3+ Kh4 Bf6 Kh5 Qcd6 c7+ Ke7 Rb1 a1Q Rb5 Qda3 Ra5 Q1c1 Na2 Qb3 Ne3 Nc3 Nd1 Nc6 b8Q Qef4 b7 Ne5 Qa7 Qbb1 b8B Qd3 Qd4 Ra7 Qa4 Rb7 Qe4 Rb4 Qd4 Qfe3 Qh4 Nge4 Bb7 Qc5 Ba6 Qf4 Bb7 Qcc4 Ba6 Bb7 c8N+ Kd8 Nd6 Ke7 Bc7 Bc8 Nb5 Rh3 Na3 d6 Bcb6 Rhg3 Nc2 Nd7 Be1 e5 Bbf2 Ndc5 Bb7 Bh3 Bc8 Nd7 Qg1 Re3 Qf1 Rgf3 Bg3 Re2 Bef2 Re1 Nde3 Reb1 Nd1 R1b3
qN6/R3BB1R/b1p1B1N1/5K2/rBp2bRr/2Q1qnQ1/q1q5/1Rbnnk2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 a5 b3 f5+ Ke5 h5 e4 h3 d3 c6 b6 a4 g5 a3 g6 a2 b7 f3 g7 f4 Rh2 f2 Qe1 h4 Ne2 f3 Qd2 Nf6 g8R Nfd7+ Kf5 Bh6 e5 Na6 b8Q Nb4 e6 Bf4 e7 Ra4 e8B Ba6 Qc3 Ne5 Bf7 Nc2 Na3 Ne1 Bd2 Qe7 Rh1 h2 Nb5 h3 Nc7 Rh4 Rg4 Qe8 Bg2 f1N Be6 f2 Bgd5 N5f3 b4+ Kd6 b5 Kc5 Rb1 a1B b6 Bb2 b7 Bc1 Bf7 Qe3 Bde6 Rh7 Qg8 Rh6 b8R Rh4 Rhg1 h1Q Ra8 h2 Ra7 Qg2 d4+ Kd6 d5 Kc5 d6 h1Q Rg7 Qgh2 Qb8 Q1g2 Rh7 Qg8 Qbb3 Qa8 d7 Qg2 d8B Qh2 Rg4 Qg2 Ng1 Qh2 Qcb4+ Kd4 Be7 Qg2 Bc3+ Kd3 Nh3 Ke2 Qa5 N1d2 Qe5 f1Q Bcb4 Qff2 Qbc3 Kf1 Qg7 Ne4 Qg6 Bb7 Na6 Qa2 Nb8 Ba6 Qgg7 Qgc2 Qg5 Bg3 Nf4 Bh2 Ng6 Nf2+ Re4 Nd1 Qg3 Qcb2 Rg4 Qg2 Qh3 Bf4 Qg3 Qgc2+
3N4/n5B1/np2BNrN/1Qp1bB1N/Q1r3n1/3KBr1b/1q1Rr3/qkbR4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 h4 Kd6 e4 Kc5 Ke2 Kd4 d6 g5 e5 c5 d3 f5 e6 b6 e7 g3 e8N f3+ Kd2 g4 a5 b3 a6 b2 h5 g2 d7 f4 a7 f2 h6 g3 h7 f3 Ng7 Bd6 Nc3 b1Q Rh2 Be5 Nh3 g1B Nf4 g2 Ne4 Ne7 Nf6 Na6 N4h5 Re8 h8B Nc6 Qa4+ Qb4+ Kc2 Qe7 d8N Bh3 Be2 f1R Bd2 f2 Rd1 Qd7 Bg4 Qe6 Bf5 Qa2+ Kc1 Re7 Be3+ Kc3 d4 Qb5 d5 Qa1+ Bb1 Qe2 d6 Re6 d7 Re8 Re1 Qeb2+ Kd1 Re6 Nf5 Re8 Bg7 Re6 Nf7 Rf8 a8B Na7 d8Q Rh8 Nf4 Rh4 N4h5 Rc4 Qde8 Re7 Nd8 Re6 Rh1 Bgh2 Qeb5 g1R Bd5 Bhf4 Rh2 Rg6 Nh6 Bg5 Bf4 Re7 Be6 Re8 Bg3 Bc1 Bf4 Re7 Bbf5 Re8 Be3 Re7 Qc6 Re8 Qa5+ Kb3 Qab5+ Ka2 Bc2 Re7 Ke2 Re8 Kd3 Re7 Ba4 Kb1 Rd1 Rd7+ Qd5 Rc2 Ke4 Rd6 Qdc4 Rdd2 Bf5 Rc3 Bb3 Rdc2 Qd4 Re1 Qda4 f1N Rhd2 Nh2 Bbe6 Rc4+ Kd3 Rf1 Rf2 Ng4 Re2 Rf3 Rh2 Re2 Rg2 Re1 Rgd2 Re2
B2K1nNn/k5pp/3bb3/2N2q2/NRN2n1Q/B1R3r1/1q2nqQb/3r1B1B w - - 0 1 illegal: No proof kernel
1b4BN/1Q2p2q/1R1rQbN1/qN1n2q1/4B1r1/2Bb4/1r1qp2N/n2kBKR1 w - - 0 1 illegal: No possible last move, all moves rejected
1k2b2B/3Rp1nR/1n3b2/KQn1Rq2/1Q1N1q2/r3pB2/2NN2N1/r2bRnr1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 f4 Kd7 b4 Kc7 g4 h5 c4 a5 g5 d3 Kc3 e3 g6 d2 c5 h3 g7 h4 f5 a4 b6+ Kb7 b5 a3 Kb4 a2 f6 h2 f7 d4 Be2 d3 Qe1 d1R Nd2 h3 Bb2 Qe8 Ngf3 Ra7 Nd4 Ra3 Nc2 Nh6 g8R Nf5 Rg5 Bg7 f8N Nd7 c6+ Kb8 b7 Qh5 Ne6 Rg8 Nf4 Bf6 Bf3 Nb6 Ng2 Ng7 Re5 Qf5 Qf1 Bd7 c7+ Ka7 b8R Be8 c8Q Re1 Rc1 a1N Qc3 Nb3 Rd8 Nc5 Rd7+ Kb8 Qe2 Rg1 Re1 Ra1 Qa3 Rf8 Ka5 Rh8 Nb1 d2 Qa4 d1B Nd2 Rh5 Qc4 Rh4 Qb4 Rd4 Bc3 Rd3 Bb2 Rda3 Bd4 Nc8 b6 Qf4 b7 Nb6 Qb5 Rf1 Rg1 h1Q Qb4 Qhh2 Rh1 Rg1 Bc3 Qe4 Bb2 Qhf4 Qb5 Ka7 b8N+ Ka8 Bc3 h2 Nc6 Qef5 N6d4+ Kb8 Qb4 Rf1 Rg1 h1N Qb5 Nf2 Rh1 Rg1 Rh7 Nfe4 Bb2 Ng3 Qb4 Rd3 Bc3 Nf1 Qb5 Rb1 Qab4 Ra1+ Na3 Qg6 Rf5 Nh5 Ne2 Bh4 Bh8 Ng7 Nd4 Bf6 Rfd5 Qgf5 Re5 Na4 Nac2 Rb3 Re2 Rba3 Re1 Nc5+
1B1RN2K/2Bpq1r1/1n1n1NB1/5Nbb/BQp2Qb1/6nq/3N1qb1/R3r1k1 w - - 0 1 illegal: No proof kernel
8/1p1Bqrn1/K1QBbrN1/1QRr3n/2Bq1NN1/1R2Nr2/1p1bb3/1k1q3B w - - 0 1 illegal: Other
3r2B1/nK1R4/4b2n/R1p3rq/3pNB1k/Bbb1r2b/1bNQ2b1/1B3QRR w - - 0 1 illegal: No proof kernel
3Q4/1rr5/2r3Rb/1bn2Kn1/1NQrB1bB/b1p2RN1/1RRpqNN1/3r2k1 w - - 0 1 illegal: No proof kernel
2RN2K1/B4R2/1rNk1r2/b1N1pQ1n/3nBR2/1n2n1p1/2N1bnqr/1Q1rR3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 e5 b4 Ke7 c4 a5 h4 d5 f4 g5 h5 e3+ Kd3 g3 h6 a4 f5 a3 b6 e2 b7 e1R h7 g4 c5 a2 c6 g2 f6+ Ke6 c7 g3 b5 Qd6 f7 Kd7 b6 Re4 Qh5 Qe6 Ne2 g1R Bg2 Ke7 Nf4 Nf6 Rh4 Ra6 Qf5 Nh5 Na3 Kd6 Be3 Nc6 Re1 a1N b8Q Nb3 b7 Rb6 Nc2 Qh6 Ne6 Rf4 Nc5 Qg5 Qg6+ Rf6 Rf4 Bg4 Qf5 Be7 f8R Bd8 Bf3 Qh4 Bf2 Qh1 Be4 Qg2 c8R+ Bc7 Rf7 Rh1 Re8 Rh2 Rc8 Rd8 h8N Rd7 Qa8 Bd8 b8N Bf3 Na3 Bd1 Qb7 Be2+ Kc2 d3+ Kc3 d2 Nc2 Ncd4 Nc6 Nb5+ Kb4 d4 Be3 d3 Kc4 d1N Bf2 Nc1 Bg1 Nd4 Be3 Ra6 Qb1 d2+ Nd3 Nf2 Rf8 Nf3 Bd4 Ba5 Ba7 Bd1 Nc5 Rb6 Rb8 Kc7 Nf7 Rd3 Nfd8 Nd4 Kd5 Be2 Ra8 d1N Rb8 Rf7 Ra8 Ncb3 Rb8 Nb5+ Ke6 Rf6+ Ke7 Rd5 Rf7 Ne3 Kf8+ Kd6 Rc8 Rd1 Kg8 N5d4
6r1/4b2q/4N2B/p2bRK2/2r1QNNB/3Q2rb/krBpb1r1/Bnn1RN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kc4 b4 h5 e3+ d3 g5 f5+ Ke5 a5 g6 d5 e4 d4 g7 f3 b6 f4 b5 h3 c3 f2 b7 h4 b6 h2 Be3 f3 Qc2 h3 Ne2 d2 Bh6 d1R Qd3+ Kb3 Nf4 Nf6 g8N Nd5 c4+ Nc3 c5 Na6 b8B Rc1 c6 Be7 c7 Nb4 b7 Na2 Nf6 Rg8 Ng4 Qd7 Nd2+ Kb2 Bg2 Nb1 Re1 h1R Nf1 h2 Ne6 Ra7 Kf5 Rc4 e5 Rg1 Re3 h1B Bh3 Nbc3 Rae1 Rg3 Bg2 Ra6 Ba7 Rb6 b8B Ba6 c8N Nc1 Re4 Rb3 Nb6 Ka2 Nd5 Nb1 Nf4 Rb2 Bb6 Qb7 Bd8 Qd7 Bh3 Bg2 Bd6 Bb7 Bb4 Bd5 Bc3 Qa7 Ng7 Qc7 e6 Qb7 Re5 Qc7 Qd2 d3 Qe3 d2 Qd3 Bf8 Bh4 Be7 Nfe3 f1R Bd4 Rbb8 Ba1 Rg1 Nf1 f2 Nfe3 Rb5 Nf1 Bgf3 Bg2 Be2 Be4 Bd8 e7 R1g2 e8Q Rb2 Nge6 Qh7+ Qg6 Bg5 Qf3 Bd8 Bc2 Be7 Qd3 Rh2 Nfe3 f1B Qe4 Bh3 Nf1 Rhg2 Qd3 Qg7 Qe8 Ba8 Qc6 Bb7 Qcf3 Bd5 Qfe4 Qh7+
1rR3BQ/n2kr2b/4nrN1/7N/R1nK1p2/2Q5/bnpbB1N1/BrB1q2N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 g4 a5 e4 f5 b4 h5 d4 f3 Ke3 f4+ Kf2 a4 b6 c3 b7 c4 b5 a3 d5 a2 e5 h3 g5 h4 g6 h2 d6 c2 b6 c3 e6 h3 g7 Nh6 g8B Nf7 e7 Ra7 Ne2 Kd7 e8N Ng5 Ng3 Ne6 Be2 Qe7 Ng7 Nc6 b8B Ba6 b7 Bd3 Qe1 Bh7 Rf1 h1R Na3 h2 N7h5 Rg1 Nh1 Rg6 Rg1 Rf6 Nc4 Qe8 Kf1 f2 Ne3 Bg7 Kg2 f1N Kf3 Bf8 Ng2 Ne3 Bc7 Nc4 b8Q Rb7 Bb6 Na7 Bd4 Be7 Qg3 Bd8 Rd1 Ba5 Be5 Bb4 Rd5 Rc7 Rc5 Rb7 Rc8 Ba5 Rb1 a1R Rb4 Rb1 Ra4 Qe7 Bf7 Rf8 Bg8 R8f7 Qa8 Rb8 Qg7 Qe8 Qh8 Re7 Bd4 Rg6 Ke4 Rf6+ Kd5 Qg6 Qg7 Qg3 Be5 Qe1 Qh8 Nf8 Kd4 Bb4 Qf3 Ba5 Bd2 c1N Be3 Nd3 Bc1 c2 Qg3 Ndb2 Qc3 Rff7 Bg7 Ke6 d7 Bb4 d8N+ Kd7 Ne6 Rf6 Ng5 Ba5 Nf3 Ne6+ Kd5 Bb4 Nfh4 Ba5 N1g3 h1B Ng6 Nc5 Kd4 Bb4 N2h4 Bd5 Nh1 Be6 Ng2 Ba5 Qg3 Bd2 Qb3 Bf7 Qc3 Ne6+ Ke4 Na3 Rac4 Nc7+ Qe5 Nd3 Bh6 Ra6 Ra4 Ba2 Bg7 Nc4 Bf6 Rf7 Qb2 Re7+ Be5 Rf6 Qb4 Ne6 Ba1 Nce5 Qc3 Nc4 Kd5 Ndb2 Ke4 Nc5+ Kd4 Ne6+
B2n2q1/nb4p1/1p1r1Qn1/1QR1N1n1/K1Rrb2R/4B3/1b5B/2bkrNRB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kc2 f5 Kb3 c5 a4 b6 h4 f3 e4 f4 a5 f2 a6 g3 a7 c4+ Ka4 g2 h5 f3 h6 c3 h7 c2 Kb3 Ne7 Rh5 Bb7 Qe2 Nbc6 Qb5 Ng6 Be3 c1B Ka4 b3 Nd2 b2 Rh4 Rg8 h8R b1N R8h5 Na3 Bd3 Rh8 Nf1 Rh6 Bc4 Rc8 a8B Qe8 Bd3 Rd8 Be2 Qf7 Rb1 Qg8 e5+ Ke7 e6 Kd6 e7 Bb2 Nh2 f1B e8R f2 Bf3 Bd3 Ree4 f1R Rhe5 Re1 Nf1 Bc1 Reg4 Bb2 Be4 Be7 Nf3 g1N Rc1 Bf6 Rc4 Nh3 Rg1 Bg5 Rf5 Rd7 Ne5 Nd8 Bh1 Bf4 Rfh5 Be4 Rf5 Nc2 Rfh5 Nb4 Rhg5 Nbc6 Rf5 Ke7 d6+ Ke6 Rfh5 Kf6 d5 Na7 Rhg5 Rf7 Rgh5 Ng5 d7 Kf5 d6 Rf8 Bc5 Bfc1 Be3 Ne6 d8Q Re8 Qc7 Nd8 d7 Re6 Qcc5 Rd6 Qcc6 Rd4 Qd6 Nh8 Qe7 Rhd6 Qf8+ Ndf7 d8B Ng6 Bf6 Nd8 Nf7+ Bed5 Be5 Bf3 B5f4+ Ke4 Bh2+ Kd3 Ne5+ Ke2 Qf6 Bfe4 Nc6 Nh7 Rc5 Ng5 Ne5 Kd1
1qBQ3b/B1Q5/R3B1RN/3B1bq1/q1Nn4/qk3rr1/1bp2Np1/1n1N1Kb1 w - - 0 1 illegal: No possible last move, all moves rejected
nR3n1n/1NB5/n1pbRq1r/5p2/Qq5k/1NrR3N/2N2bB1/QR3bKb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 g4 Kf6 b4 Kg5 e4 a5 d4 h5 b6 f5 b5 h3 d5 h4 b7 h2 b6 c6 d6 h3 e5 a4 e6 c3 e7 a3 e8N c2 d7 a2 Qd6 Kh4 g5 f3 g6 Rh6 g7 Nf6 g8R Na6 b8N Nh7 b7 Qf6 Qa3 Bd6 d8Q Nf8 Bb2 c1N Rg5 Ne2 Bg2 Nf4 Qda5 N4g6 Be5 Nh8 Nd7 Rb8 Kf1 f2 Nc5 Be6 Rg3 Bc4+ Rd3 Rd8 Ke2 f1N Kf2 Ne3 b8R Nd5 Q3a4 Ndc7 Nb3 Na8 Na3 Rd7 Rb1 a1B Kf1 Bd4 Nc2 Bf2 Qc3 Rb7 Qca1 Rb5 Bf4 Rc5 Re1 Bb5 Re6 Rc3 Be5+ Bb4 Bc7 Bc4 Ne2 Bd6 Rg1 h1Q Nf4 h2 Nh3 Bf4 Nd6 Bb5 Bd5 Qe4 Nb7 Qb4 Kg2 Be5 Rb1 h1B+ Kf1 Bd6 Bg2 Bfg3 Kg1 Be1 Rf3 Bf1 Rd3 Bf2+
2bqNB2/6rp/1KRq4/2p1knNR/B1Q1Nq1r/Q1b1q1Q1/2rQN2n/3r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Ke6 b4 a5 g4 f5 d4 c3 d5+ Kf6 d6 h3 d7 c6 e5+ Ke6 b6 h2 g5 f3 Ke3 f4+ Kd4 f2 g6 c2 b5 a4 b7 f3 g7 a3 b6 a2 Bh6 c1Q Nd2 Kf5 e6 Ne7 g8Q Ra7 Bb5 f1R Ne2 f2 Ne4 Qe3+ Kc4 c5 Ba4 Bg7 Kb5 Nbc6 b8Q Ne5 b7 Nf3 Qg3 Bc3 Qd2 Rc1 b8Q f1Q Qa8 Rc2 Bf8 Qd1 Rb1 a1Q Rb3 Rc7 Kb6 Qac1 Rb5 Qf4 Ra5 Ke5 Ra6 Nf5 e7 Qa3 Qc4 Rg8 e8N Rg4 Qa7 Rh4 Qa8 Bb4 Qa7 Qe3 Qa8 Bc3 Qa7 Qg5 d8N Rg7 Ne6 Qe7 N6g5 Qd6+ Kb5 Qd8 Rc6 Qd6 Qa5 Qd8 Qab4 Qd6 Qa3 Qd8 Rf1 h1R Rf2 Qd6 Rh2 Re1 Rh3 Nh2 Kb6 Rg1 Qde1 Q1d5 Qec1 Rd1 Qd2 Rg4 Rh5 Rh4 Qg2 Qf6 Qh3 Qdd6 Qg3 Qfd8+
b1r1k3/QRqpq1Q1/2r1RR1b/3Nn1B1/r2K2R1/1p1NQq2/nr1qB3/2Q5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 Kd3 h5 g4 e5 f4 b3 c4 h3 a4 h2 a5 b4 f6 b2 g5 b3 f5 h4 f7+ Ke7 c5 h3 a6 Rh4 a7 Qc7 g6 Nf6 c6 Kd8 g7 Ng4 g8R Bb7 f6 Na6 Ne2 Rc8 Qd2 Ba8 Nbc3 b1R Qe3 Rb2 Nd5 e4+ Kc4 d3 Kd4 d2 Nef4 d1Q+ Nd3 Qc2 Be2 Ne5 Rg4 Nb4 Re1 h1R Ra5 h2 Rb5 Bh6 Rb7 Na2 Bd2 Qd6 Bc1 Qe7 f8Q+ Qe8 Qg7 Qe7 c7+ Ke8 Bd2 Rf1 Bc1 h1Q Bd2 Qf3 Bc1 Rd8 c8Q Rfh1 Qc3 Rc8 Qcd2 Qc7 f7+ Kd8 Qc2 R1h2 Qd1 Rc2 Bd2 Rc6 Qc1 Rg2 Qf2 e3 f8R+ Qe8 Rf6 Qe7 Bf1 e2 Bg5 Ke8 Qfe3 Ra6 Rd1 e1Q Be2 Rb6 Re6 Qd2 Rf1 Rc6 Rf2 Qg3 Rff6 Qf3 Rb4 Bb7 a8Q Rgh2 Qa7 Ba8 Qd1 Rh1 Qa1 Rb1 Rb7 Rb2 Qag1 Rh1 Qb1 Rhc1 Qa1 R1c5 Qag1 Ra5 Qc1 Ra4+
1B2b2R/1p2BR1Q/4B1Q1/2q2Rn1/2rN1b1q/1n3Bbr/qp1kqRN1/1b4K1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 e4 Kd6 a4 Kc5 g4 Kd4 d3 c5 a5 h5 d6 f5 a6 h3 a7 h4 e5 c4 d7 b3 e6 c3 g5 c2 e7 b2 e8B h2 g6 f3 g7 h3 Bf7 f4 Na3 Kc3 d4 Nh6 g8Q Qc7 d8R Bd7 d5 Qc5+ Be3 c1B d6 Na6 Ba2 Be8 d7 Bd6 Qh7 Nf7 Nc4 Ng5 Be2 Rc8 a8R Rc6 Kf1 f2 Nf3 Rc8 Rg1 h1B Rg2 h2 Nd4 Bd2 Qg6 Rh3 Qdb1 Rc6 Rdc8 Bc7 d8B Bb8 Rg1 Be4 Rc7 h1Q Be7 Qh2 Bf3 Qg3 Be2 Qh4 Rg2 Bc2 Rh2 Bf5 Kg2 f3+ Kh1 Be1 Bf4 Bd2 Bg3 Bf4 Ne3 Kd2 Be6 Bc2 Ra5 Bf5 Qg1 f1Q Ng2 f2 Bf3 Qfc4 Qh7 f1Q Rd7 Qfd3 Qb1 Qe4 Kg1 Qa2 Qg6 Qe2 Qh7 Bg4 Qbg6 Bf5 Rc7 Bb1 Rd7 Qc2 Rf5 Nc5 Rc7 Nb3 Rd7 Bbd6 Rad8 Bf7 Rh8 Qc5 Bg4 Qc3 Bf3 Bfe5 Ne1 Qaa5 Bf8 Be8 Rdf7 Qa2 Rf2 Qca5 Be7 Rc4 Ng2 Qc5 Bh2 Bc7 Bg3 Bed6 Be5 Bb8 Bg7 Bg3 Be5 Bc7 B5d6 Bd8 Bb8 Bdc7 Qhg8 Bce5 Q8h7 Bef4
rQ1N4/2q1Qr2/4K2n/1b1N2b1/1pB1k1np/2R1B2N/1Rb2q1p/2qNnRR1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b3 Kf3 h3 Ke4 Kd7 Kf5 c5 a4 h5 e4 b5 g4 f3 d4 h4 g5 c4 a5 b2 e5 h2 g6 c3 e6+ Kd6 g7 b4 a6 c2 a7 f2 Ra3 Nd7 e7 Ba6 e8R Nc5 Re2 Rc8 a8N Bb5 Nb6 Ra8 Qe1 Nd3 Nh3 Rh7 Nc3 b1B Nd1 Be7 Rc3 f6 Bg5 c1Q Rb2 Bc2 Qe4 Ne1 Be3 Qb8 Bc4 f1Q+ Kg6 f5 Kf7 Bd8 Qe8 Kc7 d6+ Kb7 d7 Kc6 d5+ Kd6 Ng1 Qc7 Nh3 Be7 d8Q+ Ke5 d6 Ke4 d7 f4 Nd5 f3 Qf8 f2 Qb8 Nh6+ Ke6 Bd8 g8R Rf7 Rg2 Bg5 d8N Qg1 Qe7 f1N Bf4 Qgc5 Rg4 Ne3 Rf1 Q5a7 Rgg1 Neg4 Bd2 Qf2 Bf4 Qe2 Be3 Qf2
6k1/3Bbn2/B1r2p1B/1Q2RN1r/pbR4p/q1R1R1rr/3Brnb1/Q2N2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 g4 h5 e4 a5 b4 f3 d4 a4 e5 f6 b6 Kf7 e6+ Kg7 b5 h3 b7 h4 d5 c3 e7 c4 e8B h2 d6 c2 g5 c3 b6 Bf5 d7 Bg6 Ra3 Rh6 Ba6 Nc6 b8B Be7 b7 Be4 g6 Rh5 Bd2 c1R Ne2 c2 Rc3 Nb4 Nd4 Nh6 Nf5+ Kg8 g7 Nf7 Re1 h1R Bbf4 Rh3 b8Q Nd3+ Kg1 Nf2 Qb5 Bb4 Bg5 Qe7 d8R Rc8 Rd7 Rc6 Ree3 Bd5 Qdf1 Re1 Bh6 c1B Rc7 Re2 Bd7 Bca3 Rc4 Qf8 Nc3 Be7 Qe1 Bab4 Nd1 Qd8 Bdc8 Rd6 Rc1 Ne4 Nf2 Kh7 R7c4 Rc6 g8R Qd7 Rg2 Qd8 Ng3 Kg8 R1c2 Qd7 Qb1 Qf5 Nd1 f2+ Kf1 Qe5 Bd7 Qa1 R2c3 Qa3 Qa1 Nc5 Bg5 Nd3 Re5 Be4 Nf5 Bd5 Rg3 Be4 Rf3 Bd5 Kg2 f1R+ Nf2 Rfe1 Bh6 Re3 Nd1 R1e2+ Kg1 Nf2 Rff4 Bg2 Rfe4 Ref3 Ree3 Rfg3
3QnB2/r7/4rb1n/1n1p3k/3Rqrp1/b1NR2Kp/n1B1bRBB/4RQ1N w - - 0 1 illegal: No proof kernel
4RnBk/1nr3R1/r4bpr/1nBRNp2/N1b5/2QK2bQ/6qp/1Q1R2rQ w - - 0 1 illegal: No proof kernel
1bNQBn1N/BQQ1R2r/1Bpnp2r/8/1pk5/2Bbb3/R1nbrQ2/K6q w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 d4 Kf7 Kd2 g5 Kc2 b5 Kb2 b3 h4 b4 f4 g3 a4 g2 f5 e3 d6 g4 f6 Ke6 d5+ Ke5 d7 g3 d6 e2 f7 e1N a5 e6 a6 Nf3 a7 Bg7 f8Q Nh6 h5 Nc6 Nd2 Kd4 Bb5 Ne7 Qc2 Nf7 h6 Ng6 h7 Ne1 Ra2 Bh6 Ne4 Ba6 Ka1 Qh4 d8Q Bd2 d7 Nd6 Nh3 g1B Nhg5 g2 Nf7 Bge3 Qc6 Rb8 a8Q g1B Qab7 Bh2 Ba4 Be5 Bb2+ Kd3 Bd4 Rc8 Rf1 Qh1 Rg1 Bg3 Ba7 Bb5 Qcb6 Kc4 Qfe7 Nf8 Rf1 Rg8 h8B Rg6 Bc3 Rh6 Nh8 Bh2 Rf7 b2+ Kb1 Rh7 Qf6 Ra8 Qf2 Be5 Re7 c6 Bd1 Rc8 Bh5 Rc7 Be8 Rh6 Qda8 B5f4 d8B Rd7 Q6c7 Bh2 Ra6 Be5 Ka2 b1R Ra5 Rb2+ Ka1 Ba4 Ra6 Bc2 Ra2 Bh2 Qcc8 Bd3 Bdb6 Nf7 Qd8 Bb8 Qbc7 Nd6 Qab7 Bc1 Ng3 Re2 Nf5 Bcd2 Rf7 Nb5 Ne7 Nd6 Nc8 Re7 Rf3 Rg7 Rf7 Rgh7 Re7 Nc2+
bq4q1/1N2K3/B1rB1qQ1/rp2bp2/1N1p3N/1RB2nNk/B4R1n/Q2q2q1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 g5 e4 b3 a4 f3 h4 b6 c4 b2 a5 f2 e5+ Ke6 c5 d5 a6 f6 a7 d3 c6 d2 c7 Bd7 c8N Be7 h6 Rh7 h5 Bc5 Rh2 Qf8 Nd6 Qe8 Nc3 b1Q Ba3 Bd4 Na2 Nc6 Ba6 f1Q Rf2 Qc4 Nb4 b5 Ne2 Qb2 Nb7 Qb8 Qh1 d1Q Rb1 Rf7 h7 Nh6+ Kh3 g4+ Kh4 g3 h8N f5 Kg5 g2 Ng3 g1Q Ng6 Rf6 Nh4 Ng4 h6 Nh2 h7 Bc3 h8B Nd4 Qg2 Bc6 Qh1 Ke7 e6 Qa1 Rb3 Ndf3+ Kh5 Be5 Bg7 Ke8 e7 Kf7 e8B+ Ke7 Bf7 Rg6 Qg2 d4 Bh6 Kf6 Bd2 Bd5 Bc3 Qa2 Nd3 Qcc8 Bd6 Qg8 Nb4 Qa5 Qh3 Qad8 Qg4 Be4 Ra3 Qdf8 Ba2 Bd5 Rb3 Qfg7 Qf4 Q7h8+ Qh6 Ng4 Bf8 Ngh2 Nc5 Bd6 Bc8 Be5 Bb1 Qd6 Bb7 Rd8 a8Q Rb8 Qa1 Ra8 Ba2 Ra5 Ba6 Ba8 Nb7 Qb8 Qh7 Bc7 Bc5 Ke5 Bf8 Kf4 Bc5 Be5 Bf8 Rc6 Bd6 Qgd8 Kg6 Kg4 Kf7 Kh3 Qg6 Qdg8+ Ke7 Qf6+
q1N2QR1/7R/1nnQRKRr/k2B1p1q/2b1BB1B/n2r1p1p/1b2r1N1/2r5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 Kb6 b4 h5 c4 a5 c5+ Ka7 b6+ Ka6 b5+ Kb7 g5 f5 g6 h3 e5 h4 g7 a4 e6 a3 e7 h2 e8R f3 Nc3 a2 Ne4 Rh7 Re6 Bd7 Nh3 Rh6 Nf4 Ne7 g8B Nec6 Ng2 Bg7 Bg5 Ra6 Rb1 a1N Rb4 Ra2 Nd6+ Ka8 b7+ Ka7 b6+ Ka6 Bf6 Re2 Nc8 Nc2 Ra4+ Kb5 Ra6 Na3 Bg5 Be8 Bf6 Nd7 b8Q Bf7 b7 Nb6 Qd2 Na5 c6 Qe8 c7 Nc6 Qa8 Bh8 b8B h3 Rg1 h1Q Ra7 Qh2 Qd1 Qd6 Rb7 Qdd8 Bh4 Qg5 Qd2 Qh5 Qf4 Bf6 Qd6 Qd8 Na7+ Ka5 c8R Qf8 Rce8 Bh8 Rg6 Be6 Rh7 Bf7 Ree6 Qd8 Qb7 Be5 Bc7 Qa8 Qc8 Be8 Rg3 Nb5 Qdd7 Rb2 Rd6 Bf7 Ne3 Rg2 Qf8 Na3 Nc8 Bf6 Rgg7 Rc2 R1g6 Be5 Ng2 Rc1 Kd2 d3 Ke3 d2 Bd3 d1R Be4 Bb2 Kf4 d4 Qde7 Ba2 Bgd5 d3 Rg8 d2 Rde6 Re1 Bb8 d1R Qc7 Nd4 Ke5 Bc4 Kf6 Re2 Qc6 Rdd2 Bf4 Rd3 Qcd6 Nc6+
4B1KQ/4Bbb1/Q1q1R1Nr/pp4q1/1R1pnr2/kb1bN3/2n2B1R/n3B2R w - - 0 1 illegal: No possible last move
4r1bB/krq1BnnN/1N2p3/p5N1/r3nNB1/R1K2n2/1p1Q2QR/1Bbq4 w - - 0 1 illegal: No proof kernel
rr3b2/nbB1Rq1k/1pB2b2/2nQNN1N/qN6/B5p1/K3Qb1p/qR1B4 w - - 0 1 illegal: No proof kernel
2Rnn2r/kBb3p1/4Rrp1/N1N5/KQ1pBR1R/2q1b1B1/1Qb5/qb2B1r1 w - - 0 1 illegal: No possible last move
qN1nB3/bQ2RpqQ/4bK2/bQ4BR/4Q1NN/rbNpn1r1/5p2/n3k3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 g4 d5+ Kd3 Ke5 b4 h5 c4 f3 e4 f2 c5 h3 b6 a4 b7 a3 g5 h2 g6 h4 c6 h3 g7 a2 b5 Nh6 g8Q Qg5 b6 Bc5 c7 Ra3+ Nc3 Be6 c8Q Nc6 b8N Qg7 b7 Nf5 Qcd8 Ne3 Qc8 Kf4 e5 Ba7 Nd7 Nd8 Qh7 Rg8 b8N Kg3 Qc6 Nc2 Qe1 Kg4 Rb1 a1B Bg5 Kg3 Be2 Kg2 Rb7 Bb2 Qb6 Na1 Nf6 Bc1 Qb5 Bd2 Qeb1 Be1 Bd1 Kf1 Re7 Bd2 Q1b2 Ke1 Bb3 Qf8 Ng4 Qg7 Nb1 Bc3 Ba4 Ba5+ Nc3 Kf1 Kd2+ d3 Qb7 d4 Be8 Bb3 Qbe4 Be6 Qbb7 Bb3 Kc1 d2+ Kb2 d3 Nf3+ Kg2 e6 d1N+ Kb1 Ne3 Kc1 Nf5 Kd2 Ne3 Nh4+ Kg3 Rc1 h1B Rc2 h2 Rb2 Bc4 Rb5 Bf3 Rd5 h1Q Rc5 Bd1 Re5 Nd5 Rf5 Bdb3 Re5 Nb6 Ke3 Kh3 Kf4 Nd5+ Kf5 Kg3 Nf3 Kg2 Nh4+ Kf1 Nf6 Qf8 Ng4 Ne3+ Kf6 Qg1 Bh6 Qg2 Rh5 Ke1 Bg5 Rg7 Rc7 Qg8 e7 Qh1 Ba4 Qh8 e8Q Be6 Qeb5 Qf8 Re7 Rg8 Qd4 Qc6 Qde4 Qc8 Na6 Qa8 Nb8 Rg7 Qbc4 Qh8 Be8 Qf8 Qcb5 Rg8 Rc7 Qg7+ Ke7 Qh8 Bf6 B7b6 Nh2 Rg2 Ng4 Bd4 Bg5 Ba7 Rd7 Qg8 Kf6 Rg3 Re7 Qg7+
rB3K2/b2Bpn2/1R2Bqb1/NR2Q3/3Q1p1B/rRq5/knN1qp1q/1n5R w - - 0 1 illegal: No proof kernel
Q3brq1/1qb1p2p/1RRQ1R2/3rNR1n/nBQ2N2/1b1Qb1K1/pk2B3/n7 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Ke6 c4 Ke5 g5 d5 g6 a5 c5 d3 f4+ Kd4 Kf2 d2 b6 e3+ Kg2 e2 b5 e1B f5 a4 b7 a3 b6 h3+ Kf3 a2 c6 h2 f6 Na6 b8Q Nc5 f7 Nb3 c7 Bg3 b7 Ra5 g7 Nf6 g8Q Nh5 Qg6 Ng7 Nh3 Bd7 c8Q Be8 Be2 Bc7 Na3 Kc3 Nc4 d4 Qa8 d3 b8R Rd5 Rf1 h1Q+ Kg4 Qe4+ Nf4 Qh1 Rb1 Na1 Ne5 Qe4 R8b6 Qh1 Qda4 d1B Qcd7 d2 Qdd6 Bb3 Ba3 d1N Kg3 Nb2 Ra6 Qe4 Bb4+ Kc2 Qb5 Na4 Rb6 Qc8 Rbc1+ Kb2 Rcc6 Qc4 Rf3 Qb7 Qd3 Ne6 Nh5 Qg4+ Kh2 Qg6 Rf5 Bh6 f8R Be3 R8f6 Rf8 Nf4 Qg8 Qbc4 Ng7 Kg3 Nh5+
Nb2b2K/1pR1qB2/n2Q1Q1N/p2bR1N1/2nNr3/rQ1r2q1/p4Q1B/2k4r w - - 0 1 illegal: No proof kernel
5n1B/RR1r3k/1K3rb1/2Q1Q1q1/Qbr1rp2/bp1RQn1N/b2p4/1B2RN2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 f5 e4 Kf7 a4 d5 c4 b5 h4 g5 c5 Kg7 a5 d3 e5 d4 e6 d2 c6 f3 e7 b3 e8Q g4 a6 b4 h6+ Kh7 a7 d3 Ke3 f2 c7 g3 h5 g2 Rh3 b2 Qda4 d1R Nd2 b1B Bb2 Be6 c8Q Nd7 Kd4 Qg5 Qc5 Bea2 Qe3 Rc8 a8R b3 Ra7 Ne7 Rf3 f4 Nh3 g1B Bg2 Re1 Nf1 Ng6 Rg3 d2 Be4 Rc6 Kc4 Bd6 Kb5 Rd8 Bh8 Bf8 Ka5 Rf6 Bf5 Bc2 Rb1 Re2 Re1 Be7 Rb7 Nf8 Kb5 Rd7 Be4 Bd1 Bb1 Bc2 Ra7 Bd6 Kb6 Ne5 Rb7 Nf3 Ra7 Kg8 Rb7 Bg6 h7+ Kf7 Qee4 Re3 h6 Re2 Qed4 Re4 Qe3 Rc4 Bg7 Re4 h8R Rc4 Rh7 Kg8 Bh8 Re4 Nh2 f1R Re7 Rc4 Rf7 Rf2 Nf1 Re2 Ra7 Rd8 Rfb7 Rd7 Qee5 Bd4 Qe3 Bb2 h7+ Kf7 Bg7 Ba3 h8Q Bb4 Qh5 Kg8 Bh8 Ba3 Qg1 Ree4 Qge3 Qh6 Qhd5+ Kh7 Qe5 Qg5 Q3c3 Nh2 Rd3 Nf3 Q3d4 Bb4 Qe3 Ba3 Qcd4 Bdb4+ Qdd6 Rff7 Qdc5 Rf6+
R1B5/p1RrB1Nn/1B2Kb1n/6kp/2R1p1br/7R/qNn1rB1n/r3QQ2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 b4 Kf6 f4 e5 c4 d5 g4 h5 c5 e3 Kd3 h3 f5 h2 g5+ Kf7 g6+ Kf6 g7 e2 c6 e1R b6 Be7 b5 Bb7 c7 Bc6 c8R Ba3 b7 Ne7 g8Q Bb4 b6 Bc3 Qg2 Re8 Ne2 Bd7 Nd2 Ng8 Rc7 Nh6 Ng3 Kg5 f6 Bg4 f7 Nd7 f8B Nf6 b8B Nh7 b7 Qd6 Be2 Qa3 Nf5 Qa2 Ng7 Rd8 Rc4 Rd7 Bc7 Re8 b8R Rf1 Ra8 Rf4 Re1 h1N Bb6 Ng3 Rh1 Nf1 Qe1 Nh2 Qgf1 Re6 Rc7 Ree7 Nc4 Bb2 Kd2 d3 Ke3 d2 Kd3 d1N Bce3 d4 Rc1 Re6 Bf2 Ne3 Rc2 Ba1 Nb2 Ree7 R2c4 Nc2 Bf3 Re8 Bb7 Re4 Kd2 d3 Kc3 d2 Bc8 d1R Ba3 Re2 Bd6 e4 Ba3 Rf8 Bac5 Nf3 Rh3 Nh2 Bb4 Rf4 Bd6 Ne3 Kb4 Rb1 Kc5 Nc2 Kd5 Rc1 Na4 Bf6 Nb2 Rf7 Ba3 Ra1 Bb4 Rd7+ Bd6 Bf3 Ke6 Rh4 Be7 Bg4+
K1n3B1/N4p2/2QBQp1q/NRN2n1R/pN2pRrn/r6R/1k3r2/4b1bb w - - 0 1 illegal: No proof kernel
N4N1K/3q1N2/Bq1QpRpr/R2n1pbQ/1npb4/1kBR2R1/5qbN/2r5 w - - 0 1 illegal: No possible last move, all moves rejected
Q3r1BQ/p1bnbpRr/4B3/5bN1/1pq5/q1qR2B1/1NpKBNn1/k6N w - - 0 1 illegal: No proof kernel
1NqQq3/3qR1p1/Rp1kr3/R1bq1p2/1B1B1K1N/n1r2Q1B/3pb3/Rn4B1 w - - 0 1 illegal: No proof kernel
R3n3/1r2bpkb/2K1Rnrq/Q2NB2R/1N1q3p/1Rrp2B1/1pr3Q1/6BB w - - 0 1 illegal: No proof kernel
1B1bbB1k/RKpR2p1/1Q3Q2/r2Nn1p1/4R1qn/pB2B3/R3rpN1/1r2r3 w - - 0 1 legal: proof: f4 b5 g4 e5 a4 exf4 axb5 d5 c4 dxc4 g5 h6 Ra4 hxg5 Ra6 Be6 Ra1 Bc8 Kf2 f5 Kf3 Kf7 d4 a5 e4 c3 b4 c2 h4 a4 e5 a3 d5 Qd7 b6 Nh6 e6+ Kg8 h5 Ng4 e7 Ra5 e8R Qd6 b5 Ra4 h6 Rd4 h7+ Kf7 b7 Kg6 b6 Bd7 Nh3 Bb5 Be3 c1R Bc4 Kh6 Re4 Rd2 Bb3 Rd4 Qf1 Qb4 d6 Rd2 d7 Rdc2 d8B Be7 Nc3 Be8 Nd5 Re1 Ra2 Nd7 b8Q Rce2 b7 Nf8 Qa7 Qc4 b8B Ng6 Qb6 Bf6 Qf2 Rb1 Rd1 N4e5+ Kg2 Qb4 Be7 f3+ Kg3 Rg8 Bf8 Nh4 h8R+ Kg6 Qf1 f2 Nhf4+ Kf7 Rh6 Bd8 Ng2 Rh8 Rd6 Kg8 Rd7 Rh6 Rdd4 Kh8 Rc4 Rg6 Rc5 Rc6 Ra5 Rc5 Ra6 Ra5 Ra7 Ree1 Qfa6 f1R Qf6 Rg1 Qab6 f4+ Kf2 f3 Kg3 Neg6 Kg4 f2 Kg3 Rh1 Kg4 Nf3 Kf5 Re2 Ke6 Rhc1 Bc4 Ngh4 Bb3 Nd2 Ke5 Rce1 Ke6 Qa4 Ke5 Nc4+ Kd4 Ra6 Kc5 Qb4+ Kc6 Ne5+ Kb7 Ra5 Rf4 Qe4 Rg4 Qf3 Re4 Qg4
N3QNRN/1rB5/1KB2q2/n2QQ1qB/4bq1r/qN1b3k/nq4q1/1b5N w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 b4 h5 Bg5 f5 Be3 f2+ Kd2 f4 Ra6 f3 Rg6 Bd6 Rg4 Bf4 gxf4 hxg4 Kd3 Qc7 Bc1 Qb6 Kd2 Qd8 Kd3 Ke7 Kc4 Kf6 Kc5 Kf5 c4 d5 h4 a5 h5 g5 h6 d3 h7 d2 b6 d4 b5 g3 e4+ Kg4 e5 g2 e6 d3 b7 a4 b6 a3 f5 a2 e7 a1Q e8Q Qdf6 Rh3 Na6+ Kb5 Ne7 b8Q Bb7 c5 Be4 c6 Nb4 c7 Na2 c8B Ra7 b7 Nc6 Bd7 Na5 Ne2 g1Q Bc6 Qg2 Ng3 Qab2+ Qb3 d1B Nh1 d2 Kb6 Qa3 Qd5 Bdc2 Be2 f1B Qbe5 d1Q b8N Qd2 Nd7 Qf4 Nd2 Bb1 Bd1 Bfd3 Nb3 Qgb2 Rg3+ Kh4 Be2 f2 Bh5 g4 Rg2 Q4g5 Bf4 f1Q Rg1 g3 Rg2 Rf8 h8N Kh3 Rg1 g2 Bg3 Qfd6 f6 Qff4 f7 Qdf6 Bh2 Rg8 f8N Rg6 Ne6 Rh6 Nc7 Rh7 Na8 Rh6 Nf8 Rhh7 Rf1 g1Q+ Rf2 Qf1 Rg2 Rh6 Rg4 Qfg2 Bg3 Qh4 Rg8 Qhg5 Bf2 Rhh7 Bc5 Rh6 Bd6 Rhh7 Bc7 Rh6 Bd1 Rh4 Bh5 Rb7#
6R1/K1b1R1QB/bb3r2/1B2B1qB/2rqn1pn/4Q1Qb/1k6/1BNqR2b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 c4 Ke6 e4 f5 h4 a5 b4 d5 c5 g5 b6 a4 b5 d3 Ke3 d2 Kd4 a3 c6 f4 h5 a2 b7 f3 h6 g3 b6 g2 c7 f2 h7 g4 Qe2 d1Q+ Nd2 Bd6 Qe3 Bf8 Ne2 g1B Bb2 Ra6 Nc1 Ne7 Kc5 d4 Bd3 f1B Nc4 Bg2 Bb1 Bh2 Re1 d3 Bc3 Rg8 h8Q d2 Qg7 Nd7+ Kb5 Ng6 b8Q Bh3 b7 Bd6 Nb6 Qg5 Bb2 Ra4 Bd4 Rb4+ Ka6 Rc4 Ka7 Rf8 Bc3 Nc5 Bb2 Bd7 c8B Nh4 Qc7 Bg3 b8R Rf6 Ba6 Bf2 Rg8 Bc8 Bb5 Ba6 Re2 Be1 Qb8 Bc7 Bd4 Rf7 Bc3 Ke7 e6 Kd6 e7 Rf6 e8B Ke6 e5 Ne4 Bh5 Kf5 Bc2 Ke6 Rb1 a1Q Bd4 Kf5 e6 Qc3 Be5 Qd4 e7 Ke6 e8B Kf5 Ka8 Ke6 Na4 Kd5 Nb6+ Kc5 Ra1 Kb4 Bd3 Kc3 Ka7 Kb2 Beg6 Qc2 Bf5 d1B Bh7 Ba5 Re1 Qa4 Bb1 Bf3 Ra3 Qd1 Rd3 Qc3 Rd7 Qcd4 Re7 Bh1 Qbf8 Rg6 Qff3 Rf6 Qg3 Baxb6+
4Qb1q/n1Nn1B1k/KR3pRn/6R1/3r2b1/1n2nrR1/B1b1q1B1/Q1Q4R w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 b3 h6 Qc2 Bb4 Kd1 Bb7 Bb2 Qh4 Nc3 Qh5 Ne4 Qh4 Bd4 Qg5 Kc1 Qd8 Qd1 Bf8 Ng5 Bc8 Bf2 gxf2 g4 Bb7 Ne4 Bc8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Nh3 Kd7 Ng1 Ke8 Kc2 a5 Kc3 c5 Kc4 g3 h4 f3 e4 g2 d4 a4 b4 a3 g6 a2 e5 Bg4 h5 Rh7 d6 Ra4 h6 Be7 d5 Kf8 d7 Nc6 d6 Ra8 b6 Rc8 Kb5 c4 e6 c3 b7 c2 b8Q c1N Ka6 Qe8 d8R Bf5 d7 Bh3 b5 Bf5 b6 Ba3 b7 Bh3 Ne2 g1N Nd4 Na7 Nb5 Rc3 Bg2 f1N Nc7 Nb3 Qc1 f2 Rc8 Bd6 d8R Ne3 Qa8 f6 b8R Rd7 h7 Kg7 e7 Nh6 Rb6 Qh8 e8B Bf8 Bf7 Rd4 Rd5 Nf3 Rg5 Bg4 Rh3 Ne5 Rg3 Nd7 Rcb8 Ng8 R8b7 Kh6 g7 Rcd3 Rb8 f1B Re8 Bfe2 Re4 Bf5 Reg4 Bd1 Qe8 Bc2 Qe5 Be6 Rb1 a1Q+ Qa5 Qb2 Qa1 Ne7 g8B Bf5 Bc4 Be6 Bf7 N7f5 Bcd5 Nd1 Bc4 Rf3 Bd5 Nde3 Bc4 Qg8 h8Q+ Qh7 Qg8 Qh8 Bd5 Qc3 Bc4 Qe1 Bd5 Qe2+ Bc4 Ba3 Qe8 Bf8 Rg6+ Kh7 R4g5 Qf2 Bd5 Nh6 Bc4 Bg4 Bce6 Na5 Ba2 Qd2 Qa3 Nb3 Rh1 Qe1 Q3c1 Qe2+
5Q1K/k2rQ2Q/3qb1qp/1BNr2qN/r2bQQ2/3Bn3/2Nb2n1/1B1b1R2 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 e5 c4 Rh6 cxd5 Rb6 f4 exf4 g5 Rd6 Ra3 Rh6 Rg3 Rh8 h4 Ke7 d3 Be6 g6 Na6 Bb2 Nc5 Rg4 hxg4 h5 Bc8 h6 Nd7 h7 Nb8 Bf6+ Kd7 Bg5 Ke8 Bh6 gxh6 Kd2 Kd7 Kc3 a5 Kd4 c5+ Ke5 Kc7 e4 Kb7 g7 f5 d4 f3 b6 g3 d6 g2 d5 f2 b5 f4 d7 f3 d6 c4 Qe1 c3 Na3 c2 Bd3 c1Q Ne2 f1B Nf4 g1Q Nc2 a4 Nh5 Ne7 Kf6 f2 g8B a3 e5 a2 e6 Ra4 Qe4+ Nbc6 Kf7 Ng6 e7 a1B e8B Ka8 b7+ Ka7 b8N Nd4 Na6 Nh4 Nc5 Ng2 Kg6 Qe7 d8Q Nf5 d7 Nfe3 Ba2 Be2 Bb1 Qd6+ Kf7 Rg8 h8Q Rg5 Qde7 Re5 Kg8 f1R Qhh7 Rf7 Kh8 Bd4 d8Q+ Bd7 Qc8 Bd1 Qcd8 Qd2 Qc8 Qg6 Qcd8 Qh2 Rf1 Qf4 Qc8 Qa5 Qcd8 Qc7 Qc8 Qfg5 Qcd8 Bc8 Qdd6 Be6 b6+ Kb8 b7 Ka7 Qdd8 Qd6 Beb5 Rg7 Qee8 Be7 Qf8 Rf7 Qd7 Bd8 Qde8 Rd7 Qee7 Ba5 Qff4 Bd2 Qff8 Kb6 b8Q+ Rb7 Qbe8 Ka7 Qe8f7 Rd7 Qff4 Rd5+
3b1k1b/K4bN1/4RQBn/pr3Bbn/Qr4Q1/bb4R1/8/1QQR1nqB w - - 0 1 legal: proof: d4 b5 g4 g5 a4 f5 axb5 c6 f4 c5 e4 fxe4 dxc5 Kf7 f5 Ke8 Bf4 h6 Nd2 gxf4 Ndf3 h5 g5 Bh6 Ne5 Bf8 Ng4 hxg4 Ke2 e5 b4 d5 h4 a5 c4 g3 g6 e3 Kd3 f3 c6 e4+ Kd4 e2 h5 e1B b6 f2 f6 g2 b5 e3 f7+ Ke7 Kc5 d4 g7 d3 h6 e2 c7 d2 h7 Qd7 b7 Qe8 Kb6 Bf5 c8B Nc6 b8R Qd7 c5 Qe6 Bb7 Qe4 Nh3 g1B Qa4 d1B Ng5 Bd2 Rh3 e1B Bd3 f1N Rg3 Bf3 Rd1 Bg6 Ne6 Nh6 g8Q Bc1 Ng7 Nd4 c6 Qe3 c7 Bc3 c8B Bd5 Bcf5 Bb3 Bh1 Ne6+ Kb7 Bf6 b6 Nf4 Rc8 Be5 Rc6 Rb8+ Ka7 Nh5 Rf6 Qe1 Bb1 Bh2 b7 Bg5 Rc6 Bc7 Rb6 Bd8 Rc6 Rc8 b8Q Qe3+ Rb6 Rc5 Qc8 Rb5 Qc1 Bg1 Bbe4 Qe1 Qb1 Bc5 Bd3 Ba3 Re6+ Kd7 Bde4+ Bfd6 f8Q Bf7 Bd3 Be5 Qc5 Beb2 Qcc1 Be5 Rb6+ Ke7 Bg6 Qf2 Bdf5 Qh2 Rbd6 Qg1+ Rb6 Bdc7 Qc8 Bd8 Q8c4 Kf8 Qg4 Rg8 h8Q Beb2 Ne8 Rb4 Qhd4 Bc3 Re6 Ba1 Qf2 Bh8 Ng7 Bdf6 Rc6 Ke7 Qb6 Rb8 Qbd4 Kf8 Re6 R8b6 Qdb2 Bd8 Qf6 R6b5+
1n2rQ2/6Qp/n1R4K/bN5q/1nnqRrNk/1Q2n3/QBQ5/1n1b1R1N w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 Kf2 Nd7 Kf3 Ke7 Kg4 Kf6 Kh5 c5 b8R b4 d4 b3 g4 h3 d6 b2 d5 f3 b7 h2 e4 c4 Nh3 c3 Ra4 c2 Nf2 Ne7 Na3 Nc5 d7 b1N d6 Qb6 d8Q Bg7 d7 Na6 Qc7 Nc6 Qd5 Rf8 Qa2 Qa7 Re1 h1Q+ Qh2 Qe3 Bb2+ Qc3 d8N c1N Rc4 Be6 Rc8 Nd3 b8Q Bh8 Rd4 Bb3 Kh6 Bd1 Qbb3 Qb4 Nb5 Qc4 Nh3 f2 Rc7 f1N Qhc2 Qf3 Nf2 Nfd2 Nh1 Qc3 Rg1 Nc4 Re1 Rc8 Rg1 Ncb8 Nc6 Qe2 Ne5 Bg7+ Kh5 Bh6 Re1 Bd2 Rc6+ Ke7 Rg1 f5 Re1 f4 Kh6 f3+ g5 f2 Rg1 Be1 g6 f1N g7 Qg4 g8Q Nfe3 Rf1 Qf5 Ng4 Qh5+ Kg7 Bd2 e5 Rf4 Re4 Qd4 Qh8 Ba5 Qg8 Qf5 Kh6 Ndb4 e6 Qfd5 Ne5 Kf6 e7+ Kf5 e8Q Q5c5 Qe7 Re8 Qeg7 Qcd5 Q8f8+ Qf7 Ng6 Kg4 Ne5+ Kh4 Ng4 Qh5#
3B2RR/b1B1nKp1/1nB1n2R/1qb5/1Qr4N/n2n2Rr/2Q4R/kq1Q3n w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ke1 h5 Nc3 f4 Nd5 Bb7 Ne3 Bd5 Bg2 Be4 Bf1 Bf5 gxf5 Bc5 Ng4 hxg4 Bg2 Be7 Bf1 Bf8 Kf2 Kf7 h4 Kf6 c4 Ke5 b4 a5 e4 d5 h5 a4 b6 d3 h6 Kd4 b7 Kc3 f6 d4 h7 d2 e5 d3 e6 a3 b5 a2 e7 Qb6+ c5 Na6 e8Q Nc7 b8B Ne6 f7 Ra4 Qc8 Rc4 Ba3 Ne7 Rh2 Qc6 b6 Qb5 Rb1 a1N c6 Nc2 Bad6 Na3 c7 Qe8 b7 Qb5 Rc1+ Kb2 Rc3 Ka2 Bg2 g3+ Kf1 f2 Bc6 Kb2 Kg2 f1N Kf3 g2 Kg4 Ng3 Nf3 g1B Nh4 f3+ Bf4 Bd4 Bg5 Nh1 Kh5 f2 Rb3+ Ka2 Rc3 f1Q Rb3 Rg8 h8R Ba7 Rh6 Rh8 Rc3 Qb1 Bf6 Ka1 Bg5 Ng8 Kg6 Bfc5 f8R Rh7 Bf6 Ne7+ Kf7 Qf5 Rh8 Qd5 Qc2 d1N Qd7 d2 c8R Ne3 Rcg8 d1N Bc7 Nb2 b8Q Nd3 Qb4 Qe5 Qd4 N3d5 Qg1 Nb6 Qgd1 Nec8 Bfd8 Ne7 Rf6 Rh5 Rfh6 Qg5 Ng6 Rh3 Nh4 Bg1 Rb3 Qb5 Rc3 Bc5 Rb3 Ndf4 Rg3 Nd3
b3K3/2Bn2r1/2QN1k2/2qrp1bB/2B1B2N/bNn2BrQ/5Qn1/4bRn1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 f4 b5 axb5 fxe4 g4 h5 b4 g6 f5 Qc7 Ra3 Qd8 Rg3 Qa5 fxg6 Qb6 g5 Qd8 Rg4 hxg4 Kd2 d5 c4 a5 h4 g3 b6 a4 g7 Kf7 c5 a3 c6 g2 c7 a2 h5 a1B h6 d3 Ke3 d4+ Kf4 e6 Ke5 d2 b7 e3 b5 e2 g6+ Ke7 h7 e1B b6 Ra6 Qb3 d1R Bd3 Bf2 Nd2 Bh4 Be4 Ra7 Qh3 Re1 Ngf3 g1N Nb3 Bc3 Bf4 Na6 b8Q Bb4 b7 d3 Qa8 d2 b8Q d1N Qc6 Nh6 g8B Nc5 g7 Nf5 Qbb6 Re3 Bf7 Bb7 c8B Nc3 g8B Ba8 Bh5 Bg5 Bb7 Qc8 Nh4 Rg3 Bgf7 Rg8 h8N Rg7 Bg8 Ne3 Nf7 Ra4 Nd6 Ng2 Bgf7 Ra5 Qa7 Nge2 Rf1 Rb5 Qa2 Ng1 Qf2 Ra5 Be2 Rb5 Bfh5 Qc7 Ba6 Ba5 B2f3 Nd7+ Kd4 Rf5 Bad3 Kf6 Bc4 Ne5 Kc5 Qe7 Qb7 Nd7+ Kc6 Bb4 Kc7 Rd5 Qc6 Ba3 Nc8 Qd6+ Kd8 Qc5 Bc7 Bd6 Ke8 e5 Qa4 Be7 Nd6 Bd2 Qc6 Be1 Qh1 Ke6 Qh2 Bg5 Qh3+ Kf6
N2r4/pB1N4/n3QrQ1/2nrNR2/1R1nQK1n/2k1N3/q3r1N1/nbr1R3 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 e4 Ke7 b4 Kd6 h4 d3 Ke3 d2 c4 g6 b6 g4 c5+ Kc6 h5 d5 f5 d4+ Kf4 d3 h6 Kb5 e5 Kc4 c6 g3 b7 g2 b5 Kb4 b6 Qd6 c7 Qc5 e6 Nf6 h7 Qc2 e7 Ne4 e8N Qa2 f6 Na6 b8N Bf5 c8Q Nec5 Nh3 g1N Bg2 f1R f7 f2 f8R Nf3 b7 Nh4 Qg4 d1N Nc7 d2 Na3 Bb1 Nd7 Ne3 b8Q+ Kc3 Bb7 d1R Rf5 Rd8 h8N Nc2 Nf7 Rd5 Nc4 Rc1 Ne3 f1R+ Qf3 Rfe1 Qe4 Re2 Nfe5 Rf8 Qe8 Rf6 Qbc8 Rb8 Re1 g5+ Kg4 Ra8 Qg6 Rb8 Kg3 g4 Kf4 g3 Na8 g2 Qc6 g1N Qe6 Qa5 Ra4 Na1 Rb4 Qa2 Ng2 Rc8 Nf2 Ngf3 Nfg4 Nd4 N4e3 Rd8
1b3kn1/3qb2b/QN1r4/qQ1Nn1R1/N1QpbN1B/1N2n3/K2q3n/R5R1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Nc3 a5 Ke1 h5 Bh3 f4 Nb1 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Qe7 Bg4 hxg4 Nd2 Qg5 Nb1 Qd8 Kd2 d5 e4 g5 b4 d3 Kc3 d2 Kb3 d4 c4 a4+ Ka2 f2 h4 f1N f6 g3 c5 f3 b6 f2 e5 a3 b5 g4 c6 g2 b7 g3 c7 Nh6 b6 Rh7 f7+ Ke7 e6 Bd7 c8Q Rg7 h5 Ne3 Qe2 d1N Nd2 f1B Nb3 Bc6 Qc4 Bd3 Nh3 g1B Nf4 Nhg4 h6 g2 h7 Bce4 h8R Ndf2 R8h5 Bh2 Rg1 Ne5 Rg5 Nbd7 b8N Nfg4 b7 Ndf6 Na6 Ng8 b8Q Qd7 Qbb5 Rg6 Nac5 Bg3 Qca6 Nh2 Na4 Rh6 Rf1 g1Q Re1 Qh1 Rg1 Qg2+ Bd2 Bc2 Be1 Qd2 Bf2 Bg7 f8N Bf6 Be1 Ke8 e7 Bh7 Bf2 Bce4+ Qc2 Kf7 e8N Be7 Nc7 Rd6 Ncd5 Ke8 N8g6 Kf7 Ndb6 Ke8 Nfd5 Kf7 Kb1 a2+ Kb2 Bf4 Bh4 Kg7 Ka3 Bg3 Ngf4+ Kf8 Rad1 a1Q+ Qa2 Qac3 Ra1 Qcc7 Qc2 Qcc3 Ka2 Qa5 Rad1 Rf6 Nd3 Ng6 Ra1 Bb8 N3f4 Rd6 Nb4 Qd1 Qcc4 Ne5 Nb4d5 Qdd2+
1R1RrQ2/Nq6/q5r1/prB3R1/1p3R1K/n5nq/QRQbk1N1/1b1N3b w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a5 a4 axb4 a5 Bg7 a6 Bh6 a7 Bf8 Ba6 bxa6 g4 Kf7 f4 Kf6 Kf2 c5 d4 e5 d6 h5 d7 e4 d5 e3+ Kf3 c4 d6 c3 Rh3 a5 Rg3 e2 Qb3 e1R Bd2 c2 Ra2 c1Q Rb2 h3 Qc2 h2 Be3 h4 Nc3 h3 Nd1 Qb6 d8R Rh6 d7 Nc6 Ne2 Qb7 Bc5 Rb8 a8R h1Q+ Rg2 h2 Kg3 Rg6 Kh4 Nd4 g5+ Kg7 Rg3 Nb5 f6+ Kh7 f5 Na3 f7 Bh6 f8Q Nf6 Rg2 Ne4 f6 Ng3 Nf4 Re8 f7 Qa6 Rg1 Qe3 Ng2 Rb5 Rb8 Qee6 Qe7 Bb7 f8R+ Qf7 Qe6 Be4 Qa2 Qd5 Rf4 Qdb7 Rdc8 Kg7 d8N Kh7 Nc6 Bd3 Qf2 Bb1 Na7 Kg7 Rd8 Kh7 Re1 Qf1 Re5 h1B Qc2 Kg7 Rc4 Kf7 Rf5+ Ke6 Rff4 Ke5 Rcd4 Rgb6 g6 Qd3 g7 Rg6 Rg4 Bd2 g8Q Qdf3 Rg5+ Qf5 Rd3 Ke4 R3d4+ Kf3 Qf8 Ke2 Rf4 Qh3+
kq4Q1/nRp2K2/3r1p1b/3Q1B2/r5rb/B2bbQ1R/3RB1n1/N3n1RR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nc4 f3 Ne3 Rh5 Ng2 fxg2 Ra6 Rh3 Ra1 Rh8 h4 Kd7 b4 a5 e4 g5 Ke2 f6 Ke3 g4 Kf4 a4 Kf5 a3 Kg6 a2 d4 Kd6 h5 Nd7 b6 Ne7+ Kf7 Bb7 b5 Ra7 h6 Bc6 b7 Ra3 b8Q Ra5 b6 Ng8 h7 Ra4 b7 Ne7 Be2 Bb5 Ba3+ Nc5 Nf3 g1B Ne1 g2 Nc2 g3 e5+ Kd7 d6 Kc6 e6 Be3 d7 g1R Qa8 Nc8 e7 g2 e8B Bfh6 d5+ Kb6 d6 Na7 Qd2 Qb8 d8R Ne6 d7 Nf4 Qd5 Bd3 Qf3 Rg8 h8R Rd1 Qd5 Rd2 Rag1 Rg4 Na1 Bf2 Rh3 Bh4 Rh7 Bb1 Qf3 Rd6 Rhh1 Bd3 Qd5 Qc8 b8R+ Ka6 Rb7 Qb8 Rd1 g1B Rdb1 Be3 Rbg1 Ng2 Rh8 B6g5 Rh6 Be1 R6h3 B1d2 Kg8 Be1 Bg6 Bh6 Kf7 Bh4 Bf5 Bc4 Rb2 Bd3 Rd2 Kb6 Rc8 Ka6 d8Q Kb6 Qg8 Ka6 Nb3 a1N Rf8 Nc2 Na1 Kb6 Qf3 Nce1 Qad5 Rc6 Re8 Kb7 Re4 Ka8 Rb4 Bhf2 Rb6 Bh4 Rb7 Rd6
1R3B2/R2Rb3/1QqbrRbQ/1p1B1qRb/2Qpr3/2N4n/n5Bk/K2n4 w - - 0 1 legal: proof: e4 c5 f4 a5 b4 axb4 d4 f5 exf5 cxd4 g4 h5 g5 g6 Nc3 Ra3 Nd5 Ra8 Ne3 Bg7 fxg6 Bh6 f5 Bf8 Ng4 hxg4 Kd2 d5 a4 Kd7 c4 Kd6 Kc2 Ke5 Kb2 b5 h4 b3 h5 d3 c5 g3 f6 g2 f7 d2 h6 Kf4 c6 Kg3 h7 e5 c7 e4 g7 d4 a5 e3 a6 e2 g6 e1B a7 Bd6 f8R Ne7 g8Q Bg4 c8R Na6 g7 Nd5 Rb8 Qd7 Rf6 Nf4 Qe6 Nh3 g8R Qc6 Rg5 Re8 h8Q Nb4 Qc2 Na2 Qcc4 d1N+ Kb1 b2 Qh6 Re7 Bd2 Re8 Bb4 Be7 Ba3 B1b4 Rh2 Bbd6 Rh1 Nf4 Rhh5 Nh3 Ne2+ Kh2 Nc3 g1Q Bg2 Qf2 Rg7 Qff3 Rhg5 Bh5 Bc5 Bf8 Rd7 Bfe7 Ba3 Be5 Qd6 Bg3 Qdc5 Bgd6 Qb6 Qfd5 Rbd8 Rb8 a8B Rb7 Rc8 Ra7 Rb8 Ra6 Kc2 b1B+ Kb3 Ndf2 Kb2 Bbg6 Bc5 Qf5 Bb4 Qc8 Bad5 Qc6 Bc5 Nb4 Ra5 Na2 Ka1 Nd1 Ra4 Bd8 Ra5 Re4 Ba3 Bf4 Bf8 Bd6 Qb7 Rb6 Ra7 B8e7 Qc7 Ra6 Qb6 Ra3 Ne2 Rae3 Nc3 Re6 Rg3 Re2 Rg5 R2e4
NN4r1/pb1pbQrN/3N2b1/B4n2/1Q4Rb/RRb1Q1rq/2N3k1/qK6 w - - 0 1 illegal: No possible last move, all moves rejected
4q1QQ/Kr1p4/Q4RQ1/2Q3R1/1b1B1rN1/1b1rqp2/1r1r1NnR/1k4rN w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Nc6 Kd2 Nce7 Ke1 Nf5 gxf5 Qe7 Bg4 hxg4 Kf2 Qf6 Ke1 Qd8 Kf2 Ke7 e4 Kd6 b4 Ke5 c4 a5 h4 g5 h5 d3 b6 Kd4 e5 a4 c5 a3 b5 d2 b7 Kd3 b8Q a2 e6 Qc7 e7 Ba6 e8N Qb7 c6 Bh6 b6 Bc4 c7 Bf7 c8Q Qa6 b7 Rh7 f6 Bf8 h6 Ne7 Qbc7 Ra7 b8Q Qe6 Bb2 Nd5 Qc5 Ne3 Bd4 Ng2 Rh2 Rb7 Nc3 Bd6 Rc1 a1R Nge2 Rab1 Ne4 R1b2 Qg1 d1R Rc2 Qe7 N2g3 Bb3 f7 Qe6 Re2 Rdd2 N8f6 Qe8 f8R Re7 Nh1 g3+ Kf1 f2 h7 g4 h8Q Re5 Qa8 Rd5 Qa6+ Bc4 Rh5 Kc2 Rg5 Kb1 Rf7 Rd3 Rc2 Bf8 Ke2+ f1R Q8c6 Be7 Nef2 Bb3 Qc6b6 Ne1 Qe6 g2 Qf5 g3 Qg6 Rd6 N6g4 Rd5 Rf6 Rd6 Qgh2 g1Q Q2h7 Ng2 Q7g8 Rd2+ Kf3 Rd5 Ke4 Rd6 Be5 R6d3 Bd4 Bf8+ Qe5 Bb4 Qe7 Qb8 Qc5 Qa8 Ke5 Qd8 Kd6 Qe8 Nh3 Qge3 N3f2 Nh4 Qa5 g2 Qa6 Rb5 Kc7 g1R Rh5 Ng2 Rg5 Ra5 Kb7 f3 Qc3 Rf5 Qc5 Rf4 Kb6 Rdd1 Re2 Rdd2 Ka7 Rc1 Qcd6 Rc6 Qc5 Rb6 Ne4 Nh4 Rh2 Ng2 Nef2 Rb7+
2bb1nQN/1r2QRrB/1Q1R4/n2RB2p/kbB3Q1/b1p1Q3/2b4n/K4b2 w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 h4 gxf4 a4 b5 axb5 e5 g5 Qd3 Nc3 Qf5 g6 Qg5 Nd5 f3 Nf4 exf4 hxg5 Bh6 Kf2 Bg7 Ke1 Bf8 d4 Kd7 Kd2 f5 Kc2 a5 Kb1 h5 b4 c5 e4 f2 b6 Kc6 e5 Kb5 b7 a4 g7 f3 d5 a3 g6 f4 e6 Rh6 d6 Rh8 d7 Ra4 d8R Rh7 e7 Ra7 e8Q+ Nc6 b8Q+ Rb7 Qa7 Nf6 g8Q Nd7 g7 Na5 Ne2 c3 Qe7 c4 Bb2 c2+ Ka2 c1B Qae3 Bd2 Be5 Be1 Qdd4 Ka4 b5 Bb4 b6 c3 Qee6 Be7 Rd1 Nf8 Ka1 Bg5 Rd5 Bd8 Rh4 Rh8 Qe7 Rh7 Bh3 f1B Be6 f2 Rg4 f3 Rf4 Kb3 Rf7 Ka4 Nf4 Bd3 Ng6 f1B Qg4 f2 Nh8 Bc2 R1d4 Be2 Rd6 f1N Bc4 Nh2 R4d5 Bf1 Ng6 Rd7 b7 Rc7 b8Q Ra7 Qh8 Rb7 g8B Rg7 Bh7 Bd1 Kb1 Bb3 Qg8 a2+ Kc1 a1B Kb1 Bd1 Nh8 Bb2 Qba7 Bc1 Qab6 Bca3 Ka1 Bc2
4R1Qq/5R2/1RnqRn1b/1K1RN2k/3q4/pQ1N1b2/pB2QNr1/q4n1n w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 Ra3 exf4 Ra1 d5 cxd5 f3 Ra2 a5 Ra3 h5 Ra1 f4 Bh3 Ra6 Na3 Rf6 Nb1 Rf5 gxf5 Qd7 Bg4 hxg4 Kf2 Qe7 Ke1 Qd8 h4 Kf7 d4 g5 Kd2 c5 Kc3 c4 e4 g3 b4 f2 h5 f1Q d6 a3 d5 f3 h6 f2 b5 a2 e5 g4 b6 g2 h7 g3 e6+ Kg7 b7 a4 Kb4 a3 e7 c3 e8R c2 f6+ Kg6 f7 Qc7 Rh6+ Kg7 Rhe6 Be7 f8R Qd8 Ne2 g1N Nbc3 g2 Kb5 Bf6 d7 Kg6 d6 Kh5 Ne4 Bg5 Bb2 c1Q Rb1 Nh3 Rf7 Nc6 b8Q g1Q Qb7 Qf6 d8N Qcc3 d7 Bh6 Qa6 Bb7 Qb3 Qd1 Nc1 f1N Nd3 Qcd4 Nef2 Qfg7 Rff8 Qd2 Nf7 Nf6 d8R Rg8 Nfe5 Qh8 Rf7 Rg2 Rd5 Qd1 Rc1 Qh1 Rc4 Qa1 Rb4 Qf8 h8Q Qd6 Nfg4 Nf2 Qg8 N2e4 Ngf2 Neg3 Ka4 Qhh4 Qac4 Nh1 Rb6 Qg3 Kb5 Qg7 Qcc2 Qh8 Rc5 Nd8 Qe2+ Bf3 Rd5 Nc6
1n1K2q1/2Q1pqNr/n1N1QN2/nb1BNp2/kB2bq2/1R2N2B/2p1r3/7Q w - - 0 1 illegal: No possible last move, all moves rejected
n5N1/5p2/5RQ1/rqr1Qb2/1qNQ1bR1/p1Q2n1p/k3qQKR/1N1B3q w - - 0 1 illegal: No possible last move
R1rQ4/3Np2k/B2bqbpr/3b3Q/Rp1B4/1nbbK1B1/Qr1B3R/2B5 w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b4 axb4 g4 hxg4 f4 f5 e5 Nd7 Nc3 Rh4 Ne4 fxe4 f5 Ndf6 exf6 Rh8 Ke2 Kf7 h4 c5 a4 b5 d4 c4 h5 g3 d6 g6 d5 b3 a5 b2 a6 b1B a7 e3 h6 g2 h7 c3 d7 b4 d6 c2 Ra4 Bg7 Nf3 g1B Ne5+ Kf8 f7 Nf6 Rh2 Qb6 d8B Be6 d7 Bd5 Bc7 Rc8 a8Q Ne4 Kf3 Qe6 Ba6 Bf6 d8Q+ Kg7 f8R e2 Nd7 e1B Bg3 Bc5 Kf4 Rc6 Qh5 Bd6+ Ke3 Rc8 Bd2 c1R Re8 Rf8 h8B+ Kg8 Qa7 Bd3 Qa8 Rb1 Bg7 Bc3 f6 Rb2 Bh6 Kh8 f7 Bf6 Bc1 Rg8 f8B Bec3 Bfg7+ Kh7 Qa7 Rh8 Bd2 Bh4 Bd4 Bf6 Rf8 Qg8 Qa8 Nc5 Re8 Nb3 Bc1 Be6 Qg2 Bd5 Qf2 Rb1 Qa2 Qe6+ Kf2 Rc5 Qa5 Rb2+ Bhd2+ Kg7 Ra8 Rh6 Qc7 Kh7 Qd8 Qg8 Ke3 Rc8 Qe8 Qf7 Qd8 Qe6+
2Nq1NR1/N2q4/pnQ5/3rn1R1/BR6/1bbp1Np1/1N2q1q1/QQ2qk1K w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a6 Ke1 h6 Bg5 hxg5 Ra4 f4 Ra3 Ra7 Ra1 Rc7 Kf2 Rc5 Ke1 Rf5 gxf5 Rh6 Kf2 Rh5 Ke1 Rh8 Kf2 Kf7 e4 Kf6 c4 Ke5 b4 d5 h4 g6 b6 d3 h5 Kd4 c5 d2 c6 g4 b5 g5 c7 Be7 b7 Qf8 h6 Be6 c8N Bb4 b6 Bc3 e5 Qd8 f6 Ne7 f7 Nd7 b8N Nc6 b7 Nb6 Bb5 g3+ Kf1 Ke3 f8N f2 Kg2 d4 h7 g4 Na3 d3 Ba4 Bb3 e6 Ne5 Rh5 f1Q+ Kh1 Kf2 e7 f3 e8Q Qe2 Qb1 d1Q Qc6 Kf1 Nc4 f2 Nb2 Qde1 Rg5 Qd7 Nf3 g2+ Kh2 Rg8 h8Q Rg6 Ra3 Rd6 Qf6 Rd5 Qg7 Bc2 Rb3 Bd1 Rb4 Bb3 Qcg6 Qd8 Nc6 Qd7 b8R Qd8 N6a7 g3+ Kh3 g1Q Qc6 Nf7 Qgf6 Qee8 Qf4 Ne5 Qfc1 Qed7+ Rbg4 Na8 Rb4 Nb6 Qa1 Ke2 Qcb1 f1Q+ Kh4 Qff2 Kh3 Qd2 Rg8 Qge1 Rg5 Qfe3 Kg2 Q1f2+ Kh1 Qde1+ Ng1+ Kf1 Nf3 Qe4 Rg8 Qee2 R4g5 Qg2#
2Qb3q/1N1bb3/kpn1n1B1/1p1rN3/1p2R3/B3q1B1/3N1nKB/Qn2B1Q1 w - - 0 1 legal: proof: e4 c5 a4 h5 b4 cxb4 d4 f5 g4 hxg4 d5 a6 d6 Rh5 exf5 Nc6 c4 Nb8 Ra3 Ra7 Re3 Rh8 Re5 Ra8 Rb5 axb5 c5 Ra6 Na3 Rc6 Nb1 Rc7 dxc7 Rh7 Bd3 Rh5 Bf1 Rh8 f4 g5 Kf2 e5 h4 d5 a5 Kd7 f6 Kc6 h5 d4 h6 b6 a6 e4 h7 e3+ Kg2 d3 f7 d2 a7 Kb7 c6+ Ka6 f5 g3 f6 e2 Rh4 e1Q Re4 g4 Nf3 Ne7 Ne5 Ng6 Ba3 Be7 f8B Qe3 f7 Bd7 c8N Qe8 c7 Bd8 Bg7 Nc6 Nd6 Nf8 Bd3 Ne6 Qg1 d1N f8B Nc3 Nd2 Nb1 Nb7 Rg8 Bh8 Rg5 Bd6 Qg8 Bf6 Qh8 c8Q Rf5 Bh4 Rh5 Kh1 g2+ Kh2 Rg5 Be1 g3+ Kh3 Qf8 h8B Qg8 Qh2 g1N+ Kg2 Nh3 Qg1 Nf2 Bf6 Rf5 Bh4 Qh8 a8Q+ Na7 Nc6 Rc5 Ne5 Rd5 Qab8 Nc6 Qbc7 Na5 Qc3 Nc6 Qa1 Qeh6 Kf3 g2 Bg3 Qg5 Rc4 Qgh6 Bg6 Qh3 Re4 Q3h6 Qh1 g1B Kg2 Bh2 Qg1 Qe3 Bh4 Bf4 Bg3 Bfg5 Nd3 Qhd4 Bh2 Qc3 Bdg3 Qh8 Ne5 Bge7
1bb3KB/qqB1k2p/1b1p2RQ/2R1q3/4B3/p1b2NB1/5RQn/2Qr1Bn1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 h4 f6 e4 Ra6 f4 Rb6 d5 cxd5 f5 Ra6 Nc3 Rc6 Nce2 d4 Nf4 gxf4 g5 Re6 e5 fxe5 h5 Rg6 hxg6 e4 Ke2 e5 c4 e3 Kf3 e2 Kg4 e1B Kh5 e4 b4 e3 f6 f3 b6 a4 c5 d3 c6 f2 c7 e2 b7 a3 g7 d2 b5 Bc5 f7+ Ke7 f8Q+ Ke6 g6 Nh6 g8Q+ Nf7 g7 Bd4 b6 Qe8 Rh2 Nc6 b8B Ne5 b7 Bb6 Bb2 Ng4 Qc1 d1Q Nf3 Qb3 Rg2 Nh2 Ra2 Bc3 Rg6+ Bf6 Be5 e1B Bg3 Qb2 Ba7 Qb1 b8B Bc3 Rd2 Qe4 Rc2 Qb7 Ra2 Bba5 Bd4 Bb6 Rd2 Kf5 Bde5 Ng5 Kh6 Nh3 Qa2 Ng1 g8B Qa7 Bd5 Rg8 Bd4 Qe5 Qab2 Rh8 Be4+ Ke6 Qg7 Rd8 Re2 Bb7 c8R Ba6 Rc7 Bc8 Rc5 Qb7 Qbd2 Qa7 Qg8+ Ke7 Bc7 Qb7 Bh3 f1Q Rf2 Qfa6 Bf1 Qaa7 Qf4 Qed5 Bde5 Bg5+ Kg7 Bh4 Qh6 Bg5 Kh8 Bf4 Bg7 Qe5 Bb8 Rf8 Bc7 Rf6 Qa2 Rd6 Kg8 Rd1 Bh8 d6 Qac2 Be3 Bf5 Qa4 Qe4 Ba7 Qg4 Bb8 Be4 Qaa7 Qgh3 Bed4 Qg2 Be3 Rc4 Bb6 Rc6 Bf5 Rc5 Bc8
nkq2r2/2N4R/3n1N1N/NpKRq3/7n/nN4Q1/1nN4r/1rRNbBr1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 f5 Bb2 h6 Ng1 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kd7 h4 Kc8 a4 c5 d4 b5 e4 g4 h5 g5 a5 b3 e5 b2 h6 c4 e6 c3 e7 c2 e8N c1N a6 Qd6 a7 Qe6 f6 Qe4 d6 Qe7 h7 Nh6 f7 Qe5 d5 Na6 Nc3 b1N Qe1 Nc7 Nd1 Nf5 Nf6 Na3 d7+ Kb7 d8R Nd6 Ne2 g3+ Kg1 g4 Nd4 g2 Kf2 g1N Nb3 Rc8 a8N Kb8 Rh2 Bg7 f8N Bh6 Qe3 Bg5 Ne6 g3+ Ke1 f2+ Kd2 g2 Qg3 Nd3 Ned4 f3+ Kc3 Rf8 h8N Nb2 Kb4 Bd2+ Kc5 Be1 Nf7 Rh8 Rd7 Rcf8 Nc2 Rh3 Nh6 Rh4 Bc4 f1R Rc1 f2 Be2 Nf3 Rh7 Rg4 Rh5 Nh4 Rf5 Rh1 Bf1 g1R Rg5 Rh2 Rf5 Nce8 Nc7 Rb4 Rg5 Nc8 Rh5 Nb6 Rf5 Na8 Rh5 Qe6 d6 Qc8 d7 Nd6 d8N Re4 Ne6 Rb4 Na5 Rb3 Rd5 Rb4 Be2 f1Q Ned4 Qf4 Bf1 Qe5 Ndb3 Nbc4 Nd2 Rb1 Ndb3 Nb2
3K2bN/pk2q3/NN2rr2/r2N1n2/1R3Nb1/3R3p/bn1N1q1B/2nQN2R w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Qf6 Kd2 Qe7 Ke1 Qd8 Kf2 h5 b4 f5 c4 d5 e4 Kd7 c5 Kc7 b6+ Kc6 g7 h4 b7 h3 b5+ Kc7 g6 d3 c6 d2 b6+ Kd6 c7 Kc6 e5 d4 e6 d3 e7 Rh4 e8N Qe7 Ra3 Be6 c8N Na6 b8R Rh5 b7 Nc5 Ned6 Nh6 g8N Ba2 g7 Nb3 Nf7 Kc7 Bb2 Nc1 Nf6 Rg5 g8N Rh5 Qa4 d1B Nb6 d2 Rd3 Be2 Nh8 d1N+ Ke1 f2+ Kd2 f1B Nf3 Bg2 Ne1 f3 Bd4 f4 Bg1 f2 Bh2 Rd5 Nh5 f1R Ngf6 Nb2 Kc3 Ra5 Kd4 Bg4 Qd1 Bgd5 Nd2 Bg8 Nfd5+ Kc6 Nc2 f3 Nhf4 f2 Ne1 Qd7 Ke5 Nf5 Kf6 Qh7 Rf8 Re8 b8N+ Kb7 Na6 Re4 Rc8 Qd7 Rc4 Qe7+ Kg6 Rg1 Rb4 f1Q Nc3 Qf2 Ncd5 Qc7 Kf6 Rf1 Qe2 Ne7 Qd1 Re6+ Kg7 Nf5+ Kf8 Rf6+ Ke8 Re6+ Ne7 Qe5 Kd8 Qg7 Nc7 Qc5 Nh5 Nd4 Na6 Rff6 Ned5 Nf5 Nhf4 Qf2 Rdd4 Qf7 Rd3 Qe7+
k3bq2/b2b4/3R1QBN/p1r5/BBB1KB2/bB2R2p/np2r2r/1rBR4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 b4 f5 exf5 g5 Ra2 gxh4 Ra3 Bh6 Ra1 Bf8 d4 Bh6 c4 Na6 b5 Bf8 d5 Nh6 Na3 Nb8 Nc2 Nc6 dxc6 Ng8 Nb4 cxb4 c5 Qc7 Rh3 Qa5 Rh1 Qd8 Ke2 e5 Kd3 h5 g4 d5 f4 a5 c7 Kd7 g5 b3 f6 a3 c6+ Kd6 g6 a2 f5 h3 b6 d4 g7 h4 b7 h2 b8B Ne7 g8B Nd5 f7 Nb4+ Ke4 d3 f6 d2 Nf3 Bd7 c8B+ Kc5 c7 Kb6 Qe1 d1B Ng5 Bh5 Bc4 h3 Qd1 b2 Re1 h1R Qf3 Rh2 Re3 Bg6+ Qf5 Rh5 B8a6 Kc6 Bab5+ Kb7 Ba4 Be7 f8R Bge8 Rb1 a1R f7 Na2 Qf6 Ba3 Bh7 Ra6 c8B+ Ka8 Bg6 Re6 B8a6 Qe7 Bcb3 Qd6 Rh8 Qf8 Rh6 Re7 Bac4 Re6 Kd5 e4 Bf4 Re7 Bd2 Re6 Rd1 Rb1 Bc1 Re7 Re2 e3 Ree1 Qh8 f8B e2 Kd4 Re5 Bb4 Qf8 Nf7 Rc5 Ke4 Rh4 Rf1 e1B Rf3 Bf2 Re3 Rg4 Rh5 Rgg2 Rhd5 Bg1 Nh6 Re2 Rd6 Bf2 Qg7 Bh4 Qh8 Bd8 Qd4 Bb6 Qf6 Ba7
1nB4N/Q1pQqR1B/B6p/2NnBKb1/Bb3r1B/4p3/3b1B1n/4q2k w - - 0 1 legal: proof: e4 g5 f4 b5 b4 a5 a4 d5 axb5 Bg4 f5 Bh3 g4 a4 c4 Ra5 bxa5 dxc4 Ra3 f6 Rf3 Bg2 Rf4 gxf4 e5 fxe5 h3 Bf3 g5 Bg4 hxg4 e4 Kf2 Kd7 d4 Kd6 f6 Kd5 f7 e5 g6 c3 g5 e3+ Kf3 c2 Kg4 Ke4 b6 h6 d5 a3 b7 f3 d6 e2 d7 e1Q g7 a2 a6 a1B a7 f2 a8B Qb4 g6 Bc3 Ba6 f1N Nf3 Qd4 Ng5+ Kd5+ Bf4 c1B Nd2 e4 Kf5 Bfa3 f8B Qa4 Nb3+ Nd2 Rf1 Bc3b2 Nc5 Be5 Nf7 Qh4 d8B Nf6 g8B Bc3 g7 Bab4 Bh7 Qa3 g8B Qe1 Be5 e3 Bfe7 Bd4 B7d6 Nf3 Bg3 Nh2 Bf2 Bcd2 Be5 Nfd7 Bdh4 Nb6 Beg3 Bf6 Be5 Bg5 Qg4 Qa4 Qh3 Qe8 Qg4 Nc6 b8Q Qf8 B8b7 Qe7 Bg6 Rh7 Bc8 Rg7 Qa7 Nb8 B8h7 Rg8 Nh8 Rf8+ Bf6 Rf7 Bh5 Rf8 Be8 Rf7 Kg6 Rf8 Be5 Rf4 Na4 Ke4 Qd7 Kf3 Nc5 Re4 Kf5 Kg2 Bh5 Nd5 Bd1 Rd4 Ba4 Rg4 Bg1 Rc4 Rf3 Kh1 Bgf2 Qd8 Kg6 Rd4 Rf7 Qe7 Kf5 Rf4+
4B2b/B5r1/b2NB1B1/1r3Q1q/kB2KR2/B3p3/qQq1bqBq/1N4bn w - - 0 1 legal: proof: e4 c5 h4 g5 a4 f5 f4 Nc6 d4 Qb6 b4 Ne5 g4 Nc4 h5 Qd8 Ra3 Ne5 Rf3 Ng6 hxg6 fxe4 f5 cxd4 Rf4 gxf4 g5 b5 axb5 Ba6 Ke2 Bb7 Ke1 Bc8 Ke2 h5 c4 d5 g7 Kd7 f6 a5 g6 e5 f7 f3+ Kd2 h4 c5 h3 b6 Kc6 b7 h2 b8B f2 Be2 f1B Bb2 a4 Bh5 Kb5 c6 d3 Ke3 d2 c7 a3 Qc2 d1Q Bd4 a2 Qe2+ Ka4 b5 a1B b6 Qc2 b7 Nf6 g8B Ra5 g7 Rh7 Qa6 Be2 Nf3 Bc5 Qd3 Rb5 Rf1 h1Q f8B Qh2 Be8 Nh5 Ba7 Ng3 b8Q Nh1 Ng5 Ba6 c8B Qa5 Bge6 Bb6 g8B Rg7 Rf5 Qa2 Bb4 Bb2 Bdc5 d4+ Kd2 e3+ Kc2 e4 Nf7 Rg1 Bb7 Rg7 Bd6 Bc5 Rf4 Qc7 Rg4 Qh5 Bf8 Qch2 Bh7 Bb6 Nd6 Bc5 Qc3 Ba1+ Qb2 d3+ Kc3 d2 Qc8 d1Q Bhg6 Bb6 Qc5 Qc2+ Kd4 Bd3 Nc8 e2 Rf4 e1Q Nd6 Be2 Bbc6 e3 Ba3 Qef2 Bg2 Ba5 Qf5 Be1 Bf3 Qfg3 Ba8 Bf2 Bg2 Bg1 Be7 Qf2 Bf8 Qc3+ Ke4 Qc8 Nf7 Qc1 Bfb4 Qc2+ Kd4 Qhf3 Qc3 Qfh5 Nd6 Bb2 Bec6 Re7 Bce8 Qd2+ Ke4 Rh7 Qd3 Bh8 Qd4 Rg7 Qb2 Qc2+
7r/1q3rrQ/b1Q1Q1p1/1Q1RBpN1/bN2Q3/k1r2n2/1qR1Q1nK/5Q1b w - - 0 1 legal: proof: f4 e5 g4 b5 d4 c5 a4 cxd4 g5 f5 axb5 Be7 Bh3 exf4 Bg4 Bf6 gxf6 h5 Qd3 hxg4 Qd2 Rh4 Qd1 Rh8 Kf1 a5 Kg2 d5 h4 Kd7 c4 Kd6 e4 Kc5 b4+ Kd6 b6 g6 b7 d3 f7 a4 f8Q+ Ne7 h5 f3+ Kh2 d4 h6 a3 e5+ Kc6 c5 Kb5 h7 f2 c6 f1B c7 d2 e6 d3 Ra2 Qd5 Qf6 Bg2 Bb2 Ra7 Qf1 Ka4 b5 d1B b6 d2 Nf3 Nbc6 b8Q Ba6 c8Q Nd4 Qa8 Qb7 Ng5 Nd5 e7 Nf4 e8Q+ Kb4 Qfc6 Ba4 Qee6 d1R Qee2 Rd3 Qce4 Rc3 Qce6 Rc7 Ba1 Rf7 Rc2 a2 Nc3 Ka3 Nd5 Rg7 Bc3 a1Q Nb4 Qb2 Qac8 Rf7 Qcc6 Bf3 Rg1 Bh1 Rg3 Ng2 Rd3 Qa8 b7 g3+ Kh3 Qc8 b8Q Nf3 Qbb5 Rg7 Rdd2 Raf7 Be5 Qb7 Rd8 Ngh4 Rd5 g2 Kg3 g1R+ Kh3 Ng2 Kg3 Rd8 h8Q Rc8 Qh7 Rh8 Qff2 Rd1 Qff1 Rd3 Kh3 Rc3 Kg3 Nd4+ Kh2 Nf3+
3nR1R1/R7/Q3Q2b/3p2Nk/1Bq2Knp/1pR1p3/1qb1r3/RRr1BRb1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g6 h4 Na6 b4 axb4 h5 Nb8 g4 Bh6 g5 Bf8 Be2 Ra3 h6 Ra6 Bh5 Ra8 Nd2 gxh5 g6 Nc6 g7 Nb8 Nc4 Na6 Ne5 Nb8 Ng6 hxg6 Kd2 Kf7 Ke3 e5 c4 d5 f4 b5 a4 b3 c6 h4 c7 e4 h7 b2 a5 b1Q c5 b4 f6 b3 c6 g5 a6 Kg6 a7 g4 f5+ Kh5 f7 Nd7 f6 Bd6 f8R Bc5+ Kf4 e3 f7 Ndf6 Nh3 Nd7 Bd2 Nb8 Be1 Bf5 c8R Qb2 c7 Nh6 g8R Bc2 Qe2 Nc6 Qa6 g3 Ng5 g2 Re8 g1B f8B Ba3 Bfb4 Ng4 Rb1 Qe7 Rgf8 Rg8 h8R+ Qh7 Rf7 Nd8 Ra1 Rg6 Rhg8 Rc6 Rff8 Qd3 Rf7 Rb8 a8R Rc5 Ra7 Ra8 Rb8 Rc3 c8Q Rc6 Qe6 Qc4+ Ne4 Rc5 Rc8 Rc6 Ba5 Bf8 Bab4 Qe2 Ng5 Bh6 Rf6 Rc3 Rc5 Rc8 Rc4 Rd3 Rf5 Rd2 Rc3 Qd3 Rf6 Re2 Rb1 Bf2 Rf1 Bg1 Rff7 Qb5 Ra8 Qd3 Rfa7 Qc4+ Qe4 Qa2 Rd7 Qc6 Rc5 Bd1 Qac4 Rh2 Qe6 Qb2 Raa1 Re2 Qa6 Qb5 Ra7 Qd3 Rb5 Rc1 Rc5 Bc2 Rc3 Qc4+
qn1nB2b/1N1rq2b/k7/2Bp1QRN/1B1pNq2/3q4/K1Br4/N1n1N1B1 w - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 c5 a4 cxd4 axb5 Rh7 g4 Rh8 Ra3 g6 Rg3 g5 exf5 gxf4 g5 Nc6 Rg2 Nb8 Rg4 hxg4 Kd2 e5 c4 a5 Kc2 d5 Kb3 Kd7 h4 Kc7 f6 Kb6 f7 f3 h5 g3 c5+ Ka7 c6 f2 h6 e4 c7 e3 b6+ Kb7 h7 e2 g6 e1Q b5 g2 g7 Be6 c8N Bh3 Qh5 Ne7 g8B Bf5 Be3 Nec6 Nf3 g1Q Nbd2 Qa1 Ne4 Qgg5 Rg1 Qh6 Bd3 f1Q Bc2 Bd6 f8B Qdf6 Bf7 Qe7 Be8 Qeg7 Ne1 Bg6 Qf5 Qhf4 Rg5 Be5 Bg1 Na6 Ncd6+ Kb8 b7 Ka7 b8B+ Kb6 Nc5 Nd8 Bc7+ Ka7 Nde4 Qa4+ Kb2 Qd3 Nb3 Qf7 Bfd6 Qe7 b6+ Kb7 Bb4 Ra7 Bcd6 Qc6 Ka1 Qc8 Bd7 Qa8 Be8 Bf6 Rg4 Rg8 h8N Bh7 Nf7 Bh8 Bdc5 Rg5 Kb2 Rh5 Rg3 Rh2 Rg5 Rd2 Kb1 a4 Ka1 a3 Nfd6+ Kb8 Kb1 a2+ Kb2 a1N Ka2 Qh3 b7 Qd3 Qe5 Kc7 b8N Rb7 Qf5 Ra7 Nd7 Nb8+ Ba3 Kc6 Ndf6+ Rd7 Nb7 Kb5 Nh5 Ka6 Nc1 Nb3 Bab4 Na5 Nb3 Qdf1 Neg3 Qd3 Na1 Nb3 Ne4 Nc1+
N3QBbN/3N2b1/5R2/3n1brn/7n/1kbNrN2/1pp1RRpR/K2qR3 w - - 0 1 illegal: No possible last move
B3Q3/3N1q2/2B2KN1/1Np2n2/1BB1b1B1/2R1ppn1/r1rNq1p1/kN3q1q w - - 0 1 legal: proof: c4 a5 f4 g5 fxg5 d5 d4 dxc4 b4 axb4 d5 Bg7 e3 Bf8 a4 h5 g4 Bf5 g6 Bh6 g5 Bg7 Ra2 Bf6 Rg2 Bd4 exd4 Bc8 Rg4 hxg4 Kd2 Kd7 Ke3 Kd6 Ke4 b5 h4 c5 g7 e5 h5 f6 a5 b3 h6 b4 g6 b2 h7 c3 a6 b3 a7 c2 Qe1 g3 Be2 g2 Bd2 c1Q Rh3 Qd1 Nf3 Ne7 g8B Nd7 g7 Nf5 Bb4 Qe7 Nfd2 Bb7 Bg4 Qf7 Rc3 Rb8 a8B Qc2+ Kf3 e4+ Kf4 Rf8 Qe2 e3 Qb5 Qd3 Qa4 Qe2 Qb5 Nb6 Qe8 Nc4 Ke4 Ng3+ Kf4 f5 Kg5 Kc7 d6+ Kb6 d5 f4 d7 Kb5 d6 Ka4 d8N+ Bc6 d7 Nd6 Ne6 Ndf5 Nd4 Be4 Nb5 f3 Qe7 Rb8 d8N Rb7 Ne6 Rb6 N1a3 b1Q Qe8 b2 Nf8 Qbf1 Nd7 b1Q Bc6 Qbd1 Nab1 Qh1 Ba8 Rd6 Bc6 Qdf1 Ba8 Rd4 Bc6 Rc4 Ba8 Qf8 Bgd5 Qf7 Bdc6 Rg8 h8N Rf8 Rc1 Rc2 Ng6 Rh8 g8B Rh6 Nc4 Kb3 Ncd2+ Ka2 Nf6 Rc4 Nd7 Ka1 Rc3 Rh7 Rb3 Rc2 Rc3 Qa2 Kf6 Rg7 Nde5 Ra7 Bc4 Qb3 Nd7 Raa2 Bd3 Qg8 Bc4 Qf7+
nKRB2qk/5B2/1Bq1nN2/1pNN3B/2r1p3/1p2b1N1/Q1B1b2p/2bN3b w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 f5 cxd5 g5 e4 fxe4 f5 Nc6 Ra2 Nb8 h4 b5 g4 Bg7 h5 Kf7 Ra3 Bf8 Rf3 Ke8 Rf4 gxf4 g5 Ra6 Ba3 Rb6 Bc1 Rg6 hxg6 Be6 Ke2 Bd7 Ke1 Bc8 Ke2 e5 d4 h5 d6 c5 f6 c4 d5 f3+ Ke3 h4 a5 h3 a6 h2 a7 b3 a8B f2 g7 Kf7 g6+ Ke8 f7+ Kd7 Be2 f1B Bh5 c3 Qd2 c2 Ne2 Bb7 Nbc3 Qc8 Nd1 Qe8 Ng3 Nh6 g8B Qe6 g7 Kd8 d7 Ke7 d8B+ Kd7 d6 Be2 Bb2 c1Q Bd4 Qc6 Qa2 Na6 B4b6 Nc7 Bh7 Qed5 g8N Ke6 d7 Ba3 Ne7 Kf6 f8N Qg8 Nd5+ Kg7 B7g6 Rh7 Bf7 Kh8 Re1 Rg7 Nh7 Rg4 Nhf6 Rh4 Nb2 Rg4 Rc1 Rf4 Nd1 Nf5+ Kd2 Bc5 Kc3 Be3+ Kb4 Ng7 Ka5 Nge6 Rc4 Bc1 Rc2 e3 Rc4 Bc8 Bb7 Na8 Ka6 Rg4 Ka7 Rd4 Rc3 Rc4 Kb8 Qe8 Be7 Qg8 d8N Bd7 Bc8 e4 Nb7 Bf3 Bed8 e2 Nc5 e1B Rc2 Bed2 Rc3 Bh1 Rc2 Nf8 Rc3 Bh3 Bcg4 Be3 Be2 Ne6 Bd3 Bg4 Bc2 Ra4 Rc4 Be2 Nd3 Qd7 Rc8 Rc4 Nc5 Qc6
nB6/2K4R/R6q/5n1N/4q2q/N1RQRNrR/k2n2p1/qrR2Q1r w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 f4 d5 cxd5 e5 a4 b5 axb5 exf4 Ra2 a4 Ra3 Ba6 Ra1 Bc8 b6 Nh6 b5 Ng8 b7 Rh6 b6 Rd6 Bg2 Rg6 Be4 Bd7 Bc2 Nc6 Bb3 axb3 b8N Bd6 Nxd7 Be7 b7 Rh6 Nb8 Ba3 Nxa3 Rh4 Nb1 Rh8 Kf2 Ke7 e4 Kd6 d4 g5 h4 f5 h5 f3 Kg3 f2 h6 f1R h7 b2 Qe1 Nb4 Nd7 c5 b8R c4 Nf6 c3 Nf3 c2 Rh3 Ra3 Ra8 Ne7 Nh5 Rh1 Bd2 c1Q Qf1 Re8 h8R f4+ Kf2 Qc6 Rh7 Nf5 Ra6 g3+ Ke2 Rc3 Na3 g4 Rc1 b1Q Be1 g2 Bg3 g1Q Bh2 Re7 e5+ Kc7 e6 Kd6 Bg3 Rb7 e7 Qe4+ Kd2 Rb8 e8R Qh4 Bh2 g3 Re5 Qb1 Re3 g2 Ke2 Qe4 Kd2 Rc5 Ke2 Rcb5 Kd2 Qb6 Kc3 Rg8 Kc4 Rg3 Rcc3 Nd3 Rc1 Nc5 Rec3 Nd7 Re3 Kc7 d6+ Kc6 Rcc3 Rb1 Rc1 Nc5 d7 Na4 Rcc3 Kd6 d8R+ Ke6 Rc8 Kd6 Ng5 f3 Rc5 f2 Nf3 Qbc6 Rc1 Nb2+ Kb4 Na4+ Ka5 Nb6 R5c3 Ke6 d5+ Kd6 Nc4+ Kc5 d6 Kd5 d7 Qh6 d8Q+ Kc5 Qe1 f1N Qd3 Nd2 Qf2 Qd1 Qff1 Qe1 Raa7 Qd1 Ka6 Kb4 Na3 Qe1 Ra8 Qd1 Ka7 Qa4+ Kb8 Qa5 Ra6 Qae5+ Rcc7 Qc3 Rc5 Kb3 Kc7 Ka2 Rc6 Qa1 R6c3 Rg6 Bd6 Rg3 Bc5 Nbc4 Ba7 Nb6 Bb8 Na8+
R3q2R/Qbn1R3/RNn1B1p1/2pbq2Q/3rb3/R5B1/1k1K3p/3b1RQ1 w - - 0 1 legal: proof: g4 b5 b4 f5 h4 a5 c4 e5 a4 d5 h5 dxc4 h6 g6 f4 Bg7 hxg7 Ra6 Nc3 Rf6 Na2 exf4 axb5 f3 b6 f4 b5 Rf7 Nb4 Rf5 gxf5 axb4 d4 Kd7 e4 Kd6 b7 h5 f6 c5 f7 b3 f8Q+ Ke6 d5+ Ke5 b6 h4 d6 f2+ Kd2 Kd4 d7 b2 e5 b1B e6 f3 e7 h3 e8R h2 Bh3 f1B Ra3 f2 Re7 Ba2 Qf5 Nc6 b8Q Qe8 b7 Be2 Qh5 f1B Qa7 Bg2 b8R Bb7 Ra8 Nf6 g8R Nd5 d8R Be4 Be6 B2f3 Rdb8 Nc7 Nh3 Be2 Qf1 Bd1 Nf4 Rh7 Rh8 c3+ Ke1 c2 Nd5 Rh6 Bf4 c1Q Nb6 Qa1 Bg3 Bad5 Kd2 Rh7 Rg1 Rf7 Qg2 Rf4 Rf1 Rh4 Rd8 Rg4 Rd6 Rf4 Na4 Kc4 Qf2 Qe5 Nb6+ Kb4 Qg1 Rh4 Ra4+ Kb3 Ra3+ Kb2 Nd7 Nb8 Rda6 Nc6 Nb6 Bd3 Rhh7 Rd4 Rh8 B3e4+
R1n5/2k5/rqB2N1R/2q3qQ/Q5q1/rbQ2b2/Rb2q1n1/BK1QQ1nQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nc4 f3 Ne3 Rh5 Ng2 fxg2 Ra6 Rh3 Ra1 Rh8 d4 Kd7 Kd2 c5 Kc2 f5 e4 g5 h4 a5 b4 g4 b6 a4 b7 a3 h5 c4 h6 c3 h7 a2 e5 f4 e6+ Kd6 b5 f3 e7 f2 e8Q Be6 b6 Bg7 Bb2 Ra3 Rh6 Ne7 Qe1 Ng6 Nh3 g1Q Ng5 g2 Qa4 g3 Bb5 f1B Bc6 Nd7 b8R Be2 b7 Qb6 Ra8 Nf4 Ne4+ Kc7 Nf6 Bf3 Kc1 Rg8 h8Q c2 Bc3 Rb8 Qe8 Qh2 Qh5 g1N Bb2 g2 d6+ Kd8 Bc3 Bb3 d5 Qc5 Bb2 Nb6 d7 Kc7 Bd4 Rg8 Bc3 Nc8 b8Q+ Kd8 Qbb4 Kc7 Qc4 Qg3 Bb2 Qg4 Qcc3 Re8 Qh1 Re6 d6+ Kb6 Rb1 a1Q Qh5 Qa2 Ba1 Bh8 Rb2 Qcg5 Bb5 Kb7 d8Q Qc5 d7 Ra6 Qde8 Kc7 Bc6 Bg7 Qh1 Qb6 Qeh5 Qc5 Kd2 Qcg5 Ke3 c1Q+ Kd4 Qc2 Ke3 Qcf5 Kd2 Qc5 Kc1 Bh8 Rf2 Qe2 Kb1 Qeb5 Ra2 Qe2 Nh7 Bd4 Nf6 Qb6 Qcd2 Bb2 Qc2 Ngh3 Qcc3 g1Q Bb5+ Q1c5 d8Q+ Kb7 Qdd2 Kc7 Qdd1 Ng2 Bc6 Ng1
b1b1QN1B/n5r1/1QQK3n/qQ1BQ3/3r4/3Q3q/b1N1R3/1rkB1bbq w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 g4 h5 d6 c5 d5 b3 e4+ Kb4 g5 f3 b7 f2 b6 f4 g6 h3 d7 h2 d6 b2 g7 c4 Qc2 c3 Nf3 h4 Nd4 h3 Na3 b1R Bb2 f3 Be2 f1B Ne6 f2 Bd1 Bc4 Re1 f1B Re2 Nh6 g8B h1B Qc1 h2 Nc2+ Kb3 Ba1 Na6 b8Q Nc7 b7 Ra4 Bf7 Qh4 d8Q Qh3 d7 Nb5 Qb6 Rh7 d8Q Rg7 Qd3 Bc5 Nf8 Bg1 Bd5 Rb4 Bb2 Na7 Kd6 Bhg2 e5 h1Q e6 Ka2 Na1 c2 e7 Bb3 e8Q Rd4 Q8c7 Bc4 Qf4 c1Q b8Q Qd2 Qfe5 Qa5 Qcc6 Bb3 Bc3+ Ka3 Nc2+ Ka2 Bd2 Kb2 Bc3+ Kc1 Qbb5 Ba2 Q8b6 Rdb4 Qh2 Ra4 Bf6 Rd4 Qhe5 Re7 Bh8 Rg7 Rd2 Bf3 Re2 Qb4+ Qcc5 Rf4 Be6 Ba8 Bd5 Qa5 Qcc6 Rd4
QNbq1r2/2b2nK1/rR2R2R/NR3B1Q/k7/2rR1rNr/3q3b/1q2b2R w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Nc6 Ke1 Nce7 Bg5 f4 Ra1 Nf5 gxf5 hxg5 Kf2 d5 b4 Kd7 c4 a5 h4 g4 e4 g5 e5 a4 e6+ Kd6 b6 Kc6 e7 d3 e8R a3 f6 d2 b5+ Kc5 f7 Kb4 h5 d4 b7 d3 b8R a2 h6 Ra6 b6 Bd6 f8R Bc7 h7 Nh6 c5 Nf7 b7 Ra3 c6 Rc3 Qe2 d1Q Bh3 d2 Re6 Ka4 Na3 Qb1 Nc4 d1Q Na5 Qd1d3 Rfe8 Rf8 Qe5 Qd2+ Ne2 Rh8 Rd1 Rf8 h8R g3+ Kf1 g2+ Kf2 g1R Rhh6 Rh1 Bf5 g4 Ref6 Rh3 Ree6 Qe4 Rab1 a1B Rb3 Qb1 Rh1 Bb2 Rb5 Bc1 Ra8 Ba3 b8N Bb4 Ra6 Qbc2 Rab6 g3+ Kg1 g2 Kf2 Qcd3 Rd6 Q3c2 Rd3 Qa2 Re6 g1B+ Kf1 f2 Kg2 Qb3 Ng3 Bh2 Kf3 f1R+ Ke4 f3 Qd5 f2 Kd4 Bcd6 c7 Ra1 Qf3 f1R Qh5 Qb1 Kd5 Ba6 c8Q Rf3 Qc6 Bc8 Qa8 Bc7+ Ke4 Nd6+ Ke5 Ra2 Re7 Nf7+ Kf6 Bc5 Kg7 Bf2 Ree6 Be1 Rb2 Rc6 R6b5 Ra6 Rbb6 Ra3 R2b5 Rc3
b1BQbRB1/4n1Q1/nn2BN2/5r2/2bb4/K1nR2b1/1B2BBk1/Rqqb4 w - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 a4 c5 axb5 cxd4 f4 exf4 g5 Ra6 Nc3 Rb6 Nd5 f3 Nf6+ gxf6 h5 f5 Rh2 f4 Rh1 Rg6 hxg6 Be7 Bd2 Bc5 Bc1 Bf8 Kd2 Ke7 e4 Ke6 b4 Ke5 c4 d5 Kc2 h5 Kb2 f5 g7 a4 c5 d3 c6 a3+ Ka2 f2 g6 h4 b6 d4 b7 f3 c7 d2 b5 Kf4 b6 Kg3 e5 d3 e6 f4 e7 h3 e8B h2 Bb2 Qg5 Kb3 a2 Bf6 Rh5 Qc2 d1B Bh3 f1B Bc3 f2 Be6 f3 B8d7 d2 Bb2 Ne7 g8R Na6 b8B Kg2 g7 Bc4+ Ka3 f1Q b7 f2 Bb5 Bd7 c8B Be8 Nf3 Qh6 Qb1 Rf5 Ne5 Qe1 Rf1 h1B Ng4 Qe4 Qc1 Qb1 Ba7 Qf4 Re1 f1N b8Q Ne3 Qc3 N3d5 Nf6 Nb6 Re3 Qf1 Rd3 Qc1 Rb1 a1B Rh8 Qe1 g8B Bh6 Qd6 Bf4 Qd8 Bg3 Qe5 Bf3 Qed4 d1N Qg4 Nc3 Qg7 Nd7 Bf2 Bd1 Bh7 Nb6 Rf8 Kh2 Bhg8 Ba8 Bc6 Kh3 Bf3 Qh1 Be2 Kg2 Rf7 Qc2 Rc1 Qb1 Rf8 Qh6 Rc2 Qhc1 Rcd2 Bc2 Rd1 Bca4 Re1 Bd1 Bh7 Qh6 Bh5 Be2 Qf7 Qd1 Qg7 Nca4 Bc1 Bd4 Bb2 Nc3 Bhg8 Qc2 Rc1 Bd1 Ra1 Qb1 Be2 Qhc1
Bb4bB/4NQq1/Bq1q3N/q1Br1r2/n2B3K/6pb/1Bn1qR2/1QN1k3 w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 Ke7 h4 Kd6 d4 a5 b6 c5 h5 f5 h6 g5 b7 a4 b5 a3 b6 c4 h7 f4 Rh5 a2 Rh6+ Be6 Ne2 a1Q Bb2 g1Q Rf6 f3 Nbc3 g2 Qb1 g4 Nc1 Nd7 b8B+ Qc7 b7 f2+ Ke2 Nh6 Ba7 Rd8 b8Q Qa5 Qb3 Nc5 Rf5 g3 Kf3 Ng4 Rf4 Rg8 h8B Qh2 Qb7 Qc6 Qf7 g1Q Bg2 f1B Rf5 Be7 e5+ Kd7 Rf4 Na4 Bc5 Rgf8 Rf6 Qcb6 d6 Kc6 d7 Ne3 Nd5 Bd6 Ne7+ Kb5 d5 Bb8 d6 c3 Rf5 Bec4 e6 Nc2 Kg4 Qd4+ Rf4 Qd3 Ba8 Bh3+ Kh4 Qhe2 Rf2 Qg6 Bcd4 Qg7 Bc5 Bb3 Bd4 Kc4 Bc5 Rc8 d8N Rc6 d7 Rd6 Nd5 Ba2 e7 Bb3 e8B Ba2 Nf6+ Rd5 Nc6 Bb3 d8B Ba2 Nb3 Kd3 Nc1+ Kd2 Ne7 Ke1 Ng4 Qd6 Nh6 Qab6 Qg8 Rff5 Bb5 Nd4 Nc8 Rde5 Bf6 Be6 Bd3 Rd5 Ne7 Qa5 Qe8 c2 Ba6 Bg8 Qh5 Qeb5 Qe8 Qbb6 Nb3+ c1Q Qf7 Nc2 Bfd4 Qd1 Nc1 Qe2
1Q2RqR1/8/R1n5/1RNr1nb1/1pB1B2B/2bbq2R/4Rq1b/rQbk1K2 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Ra5 Ng4 hxg4 Bb2 Ra6 Bc1 Ra8 a4 Kd7 h4 Kd6 d4 b5 a5 e5 f6 c5 f7 b3 a6 f3 a7 b2 h5 b1Q h6 c4 g6 e4 h7 e3 g7 b4 Be2 f2+ Kf1 c3 Qe1 g3 Bh5 c2 Rh2 Ba6+ Be2 Be7 f8Q Qb6 Nf3 Bd3 Ng5 Qb3 Ra6 Nc6 Ne6 Nh6 g8R Nf5 Nc5 Qc7 Bd2 c1B Qb8 Bg5 Qd1 Qa3 Be1 Qc3 Re8 Qb3 Re5 Rd8 h8R Qc3 R8h3 Qd2 Kg2 Rd7 Bf1 e2 Qb3 Qe3 Qb1 Rh7 Re8 Rh5 Rg8 Ke7 d6+ Kf6 d5 Ke5 d7 Kd4 d8R Qd6 Bd2 e1B Rde8 Kc4 Bc3 Qc7 Bb2 Bc3 d6 Kd4 d7 Kc4 Na4 Kb3 d8R Qcf4 Rd5 Qd6 Qa2+ Kc2 Rb5 Kd1 Nc5 Qdf4 Qb1 Qfe5 Rh4 Qg7 Rhe4 Qf8 Rh3 Qg7 Kh1 g2+ Kh2 g1B+ Kg2 Bh2 R4e6 Bc2 Bc4 Qge5 Ba1 Q5g3+ Kf1 Be4 Ra2 Bd3+ Re2 Rh4 Bb2 Rd4 Rf6 Rd5 Rfg6 Bd2 Bf6 Bc3 Qc7 Rb8 a8B Rb7 Qf4 Ra7 Qb8 Ra1 Be7 Bh6 Bh4 Bg5 Bb7 Nce7 R6g7 Nd6 Nd7 Rd4 Be4 Rd5 Rh7 Ndc8 Rh6 Na7 Ra6 Nac6 Nc5 Qgf4 Rg3 Qf8 Kg2 Nf5 Kh3 f1Q+ Bg2 Qfg1 Be4 Qe1 Kg2 Bd4 Rh3 Q1g3+ Kf1 Be5 Rba5 Bc3 Rb5 Qgf2+
6kB/N3b2R/1rNRbbb1/QN2Q3/K3q3/2Nr1qn1/3Qp3/Nq2b1rN w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 g4 fxe4 f5 b5 axb5 Nc6 g5 Nb4 Bh3 Nd5 Bg4 Ndf6 gxf6 hxg4 Kd2 Kf7 h4 d5 c4 g5 Kc2 a5 Kb3 e5 b6 g3 c5 g4 b7 d3 b8Q e3 h5 d4 c6 d2 c7 g2 h6 e2 h7 e1B Qa7 e4 Nc3 d3 Nh3 g1R Ka4 e3 b4 e2 b5 g3 b6 g2 b7 Bh6 b8N Bf8 Nc6 Nh6 Bb2 Qe7 Nf2 Be6 c8N Rb8 Rh3 Rb6 Nh1 Rg8 h8Q Rg3 Qa8 Qb7 N8a7 Be7 Qhb8 Re3 Qe5 Rf3 Qc2 d1Q Rh2 Qd2 Rd1 Qe3 Qd2 Rg3 Qd8 Qf3 Qdd5 Kg8 f7+ Kh7 f8N+ Kg8 f6 Nf5 Ba1 Rh3 Nd7 Ng3 Nc5 Qa8 Q2a2 d2 Nb3 Qe8 Qdd4 Qg6 Bb2 Qgd3 Na1 Qde4 Rc1 d1B+ Rc2 Rb3 Rd2 Bc2 Qb4 Rh6 Rd6 Rg6 Rh7 Rh6 Kb5 a4 Ka5 a3 Ka4 Bb1 Qbd4 Rb6 Qad5 a2 Qa5 Qd5 Qde3 Rh3 Qd2 Bg6 Rg7+ Kh8 f7 Qdd3 f8N Qc2+ Nb3 a1B Rf7+ Kg8 Rh7 Bd7 Ne6 Qce4+ Ned4 Be6 Ba3 Rf1 Bb4 g1Q Ndb5 Bb2 Nf2 Qgh1 Na1 Qb1 Ba3 Rg1 Bc5 Qfe4+ Bd4 Qhf3 Nh1 Bc1 Qd1 Bcg5 Qd2 Bgf6 Qc5 Be5 Nd1 Qfd3 Qa6 Nf1 Qaa5 Rf3 Ndc3 Ng3 Qd5 Re3 Qc5 Qf3 Qd5 Qde4 Qc5 Rd3 Qd5 Bf4 Qc5 Bfg5 Qf5 Qee3 Bh8 Bgf6 Qe5 Qee4+
2Q1Q2R/Nb5q/1N1QbQ2/Kp3R2/n4Nbr/1r3p2/Q1nQB2b/2rb2k1 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 c5 b4 cxb4 Bh3 a5 Bf1 a4 Bb2 a3 Qc2 axb2 Qc1 Qa5 Qd1 Qd8 d4 Kd7 Kd2 Kd6 h4 b5 a4 f5 e4 g5 h6 f3 a5 f2 h5 g4 a6 g3 a7 b3 Kc3 f4 Kb4 g2 h7 Bd7 h6 Bg4 Nd2 b1B Ne2 Qh4 Ka5 g1R Qc2 b2 e5+ Ke7 d6+ Ke6 d7 Kd5 d8N f3 e6 Na6 e7 Nc5 e8Q Na4 Nc4 Ba2 Rc1 b1B Nc6 Bd6 Qd2 Ne7 Nb6+ Ke4 d5 Bh2 d6 Bae6 d7 Nd5 d8Q Ne3 Q8d6 Nc2 Nf4 Rd8 Bc4 f1B a8Q Be2 Rd1 Rc8 Na7+ Rc6 Rc1 Bd1 Be2 Qh5 Qac8 Rc3 Qf7 Rb3 Qf6 Nb4 Rc5 Nc2 Rf5 Qf7 Qb2 Qd7 Qa2 Rf1 Qe1 Ke3 Qed2+ Kf2 Qe8 Nd4 Qc8 Be4 Qe8 Bb7 Qc8 Rf8 h8Q Nc2 Qf6 Rh8 h7 Qf7 Rg1 Qh5 Rg3 Qh6 Rh3 Kg1 Rh4 Rd8 h8Q Qh7 Rh3 Rg8 Rhh5 Rg6 Qhe8 Rh6 Rhg5 Rh5 Rg8 Rh4 Rh8 Re1 Bd3 Be2 Bc4 Rc1 Bd3 Bd1 Bf1 Na1 Be2 Nc2
3B2q1/6Bn/4QN2/bQ1b1Rb1/3bKR1q/2Bp2kr/1n2R2p/1RR1Rnr1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Ng8 g4 Nf6 g5 Qc7 Be2 Qb6 h6 Qd8 Bh5 Ng8 Nd2 gxh5 g6 Ba6 g7 Nc6 Nc4 Nb8 Ne5 Bc8 Ng6 hxg6 Ke2 Kf7 Kd3 Kf6 b4 Ke5 c4 d5 c5 a5 f3 a4 b6 g5 f6 g4 b5 a3 c6 h4 b7 a2 b6 g3 f7 g2 c7 h3 h7 h2 Qc2 Nd7 b8Q Nh6 g8R Ng4 b7 Ne3 Qb3 Kf4 Rb1 a1B Bb2 e5 Bc3 Be7 Re8 Nf6 f8R Nf1 Nh3+ Kg3 f4 g1Q f5 Be6 c8R Ra6 Nf4 e4+ Ke2 e3 Kd3 Rg8 h8B e2 Bg7 Nh7 f6 e1B f7 Bg5 Qa2 Ra3 Nh5+ Kg4 Rc7 Qf2 Rc4 Qh4 Nf6+ Kf3 Rc7 Kg3 Qb3 Bb2 Qc8 Ba1 b8B Bed2 Qa6 Bb2 Qab5 Ba1 Bb2 Ba5 Ba7 Qc8 Bb6 Qb8 Rcc1 Qc8 Bc3 Qa8 Ke2 d3+ Ke1 d4 Bd8 d2+ Ke2 d1N Kd3 Bd5 Re2 Nd2 Rhe1 Nf1 Rfe8 Qc8 f8R Qcg4 R8e5 Nb2+ Kc2 Qc8 Rf5 Qe6 Bh6 Rg6 Bg7 Qg8 Rf4 Bb7 Qe6 Bd5 Ng4 Rb3 R8f5 Ra3 Nf6 Rb3 Bd2 Re3 Bb4 d3+ Kc3 Rf3 Kd4 Kh3 Bd2 Nd1+ Bc3 Bh6 Bf8 Rg1 Bg7 Bg5 Bb2 Rfg3 Ree4 Kg2 R4e3 Rh3 R3e2+ Kg3 Ke5 Bb3 Bd4 B1c3 Ke4 Nb2 Be3 Bd4 Bd2 Bc4 Bc3 Bd5+
BB1n2QN/1n4q1/1b1NK2b/3N2pQ/3N1N2/b2N2rB/1pn1Rq2/r1bk4 w - - 0 1 legal: proof: f4 d5 e4 dxe4 c4 a5 b4 axb4 g4 f5 gxf5 h5 a4 Qd7 f6 Qd8 f5 Bd7 Ra3 Bc6 Rg3 Bd5 Rg4 hxg4 cxd5 Ra6 Qf3 Ra7 Qd1 Ra8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 b5 h4 g5 d6 g3 f7 e3 d3 e2 a5 e1B d7 g2 f6 b3 a6 Kb4 d4 c5 d5 b2 h5 c4 a7 c3 d6 c2 h6 Kb3 h7 b4 Qe2 Qb6 d8Q Bh6 f8N Qf2 f7 Nc6+ Kd5 e5 d7 e4 Nh3 g1B Nf4 e3 Qg4 e2 Bh3 Nge7+ Ke6 Na5 Nd3 Nec6 Bf4 c1B Ng6 Kc2 f8N b3 Qh5 Bb4 Rh2 e1N Bb8 Nb7 Nc3 b1Q Ngf4 b2 Ncd5 Ba3 Qc8 Kd2 d8N Nc2 Nf7 Qa1 Nd6 Ncd8+ Ke7 Qa2 N8e6 Qc4 Kd7 Qc3 Nd4 Re8 h8N Re3 Rg2 Rf3 Ke7 Kd1 Kf6 Qc7 Qe6 Qd7 Qg8 Qg7+ Kf5 Qf1 Re2 Rg3 Nb3 Bb6 Nd4 Nf7 Ke6 Qf2 Bc7 Rc8 Bb8 Nfd8+ Kf5 Rc4 a8B Ra4 Qg4 Bb4 Qf3 Ra1 Qh5 Qc7 Ke5 Ba3 Kf6 Qg7+ Kf5 Nf7 Ke6 Nfd8+
1q1Bq1R1/4n1K1/2R2Rpp/Nrb3R1/R3QNr1/1NrQ4/n1qq4/4Rnk1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 d5 axb5 g5 Kd2 gxh4 Ke1 d3 g4 d4 g5 Bb7 g6 Nc6 g7 Ne5 Be2 Bd5 exd5 Nc6 Bh5 Nb8 Bg6 fxg6 Kd2 Kf7 f4 Kf6 c4 Kf5 b4 Ke4 c5 e5 f5 a5 d6 h3 d7 a4 b6 h2 f6 h6 b5 a3 b7 a2 c6 Bc5 c7 Ra6 c8R Rd6 f7 Rc6 f8R Na6 b8R Nb4 b6 Ne7 g8R Qc7 Rb7 Qb8 Ne2 Rc7 Rhf1 h1N d8N Ng3 Re1 Rh7 Qc2 Rh8 Nf4+ Kf3 Rf7 Kf2 Nc6 e4 Rf6 Rh7 Na5 e3+ Kd1+ e2+ Kd2 Rc6 Ra7 Rf7 b7 Rb6 Ba3 Rb5 Rcc6 Rf8 Raa6 Rc8 Rf5 Rc7 Rg5 Rc8 Rf6 Rc7 Rac6 Nf1+ Kc1 d2+ Kb2 d1Q Qe4 d3 Kc3 Rc8 Nd2 Qb1 Ndb3 d2 Bb2 d1Q Bc1 Rc7 Bd2 Qe8 b8Q Rc8 Kc4 Qdc2+ Bc3 Qbb2 Qd6 Rc7 Qdd3 Qb8 Rab1 a1R Rbd1 Ra4 Ra1 Qd2 Be5 Rc8 Bc7 Qb1 Bd8 Qbb2 Red1 e1Q Ra2 Qee2 Re1 Q2e5 Ng2+ Kg1 Nf4+ Qg2 Raa1 Nf5 Ra2 Qe8 Ra3 Na2+ Kd5 Ne7+ Ke6 Rc4 Ra4 Qc2 Rf7 Rc7 Kf6 Rc3 Kg7 Rcb7 Re5 Qgd2 Rff6 Rb4 Qd6 R7b5 Rg5+ Rg3 Qdd3 Rg4 Rcd6 Rc4 Rc6 Rc3
2qB1r2/rk1q4/1q1b1r1N/2rN3B/BQRKp1N1/1bq4n/p1N3N1/2Q4N w - - 0 1 legal: proof: f4 c5 e4 f5 d4 cxd4 g4 fxe4 a4 h5 b4 b5 axb5 Nc6 f5 Ne5 g5 Ng4 Ra6 Rb8 Rg6 N4f6 gxf6 Ra8 Rg4 hxg4 Kf2 g5 c4 a5 h4 d5 h5 Kd7 f7 Kc7 h6 e5 c5 d3 Ke3 g3 f6 d2 h7 g2 b6+ Kc6 b5+ Kb7 c6+ Kb8 b7 g4 c7+ Ka7 b8N g3 b6+ Kb7 Bb5 a4 Nh3 g1Q+ Nf2 g2 Nc3 a3 Ba4 a2 Nc6 Bd6 f8Q Be6 f7 Bc8 Nb4 Nh6 Rh4 Be6 Nc2 Ra7 Ba3 Qc8 Qc1 Rg8 h8N d1Q Bb4 Rg6 Ba5 Rf6 Qe7 Qg4 f8N Nf7 Nfg6 Ng5 Nf7 Nh3 Nh6 Bf7 Nf4 Qgd7 Qb2 Qa1 Qc1 g1Q Qf8 Qg6 Nh1 Be6 Ng2 d4+ Kd2 d3 Ke3 d2 Nd5 d1R Rf4 Ka6 b7 Rf1 b8N+ Kb7 Nc6 Qb2 Qe7 Rf8 Rg4 Qg7 Qh4 R1f6 Qhe1 Qb5 Qb4 Qb6+ N6d4 Qbb5 Nf3 Bg8 Nh2 Qb6+ Kd2 e3+ Kd3 e2 Rc4 e1R N2g4 Ref1 Ke4 R1f5 Kd3 e4+ Kc3 Qce8 c8B+ Ka8 Ba6 Qdc8 B6b5 Kb7 Bd7 Qee7 Be8 Qed7 Bh5 Qh8 Nc7 Rc5 Nd5 Qbb5 Bd8 Qb6 Kd4 Be6 Nc7 Qhg7 Rc3 Bb3 Nd5 Qh8 Rc4 Qhg7 Ne5 Qg3 Neg4 Qc3+
N1Q3rq/2NB2k1/rKB1Bpq1/1BB3p1/q2qr2Q/r5N1/5n2/1bRB2n1 w - - 0 1 legal: proof: d4 a5 f4 c5 h4 cxd4 b4 axb4 g3 e5 fxe5 Qf6 Bd2 Qe7 Bc1 Qd8 a4 h6 h5 Be7 Ra3 Bh4 gxh4 Qf6 Rg3 Qd8 Rg5 hxg5 Kd2 Kf8 Kd3 b5 c4 d5 e4 g6 e6 g4 a5 b3 h6 g5 e7+ Ke8 h7 b4 a6 f6 h5 Kf7 e8B+ Kf8 c5 b2 e5 g3 e6 b3 a7 g2 c6 Kg7 h6+ Kf8 c7 Qe7 Qg4 Qd8 Be2 Nd7 Nc3 b1R Be3 b2 Qh4 Ra1 Bd1 Ra6 Nge2 g1R Nb5 Rg4 Ng3 Re4 Bg1 Bb7 c8B Bc6 Nc7 b1Q+ Kd2 d3 Kc3 d4+ Kc4 Ne5+ Kc5 d2 Bed7 d3 e7+ Kf7 e8B+ Kf8 Be6 Nf3 Bcd7 Qdb8 Bf2 Ng1 Be3 Bb7 Bb5 Bd5 B8d7 Ba2 Bf2 Ra3 Kc6 Qe8 Kb6 Qc2 Bd4 Bb1 Be3 Qa4 Bd4 Qg6 Be3 Ne7 Bc5 Rg8 h8N Qd4 h7 Kg7 Nf7 Nc6 Nd6 Ne5 Nc4 Ng4 Be2 Nf2 Bd1 Rad8 a8B Rb8+ Bb7 Rba8 Bb7c6 R8a7 Bf3 d1Q Be2 d2 B2g4 Qa4 Bd1 Qh5 h8Q+ Kg6 Be2 d1Q Bf3 Q1d3 Bd1 Rga8 Qc8 Qh8 Rh2 Kg7 Rg2 Ng4 Rc2 Nf2 Rc1 Ra5 Qb7 Rf8 Qc8 Ra6+ Kb7 Re3 Nb6 Rg8 Nba8 Re2 Bd6 Qg6 Bc5 Ra5 Kb6 Re4 Rc4 Ra7 Rc1 Ra6+
NN6/1KQ1bp1R/QnR5/R1bbB3/R1Rp4/3rk1b1/bpq5/Q4Rnr w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 a5 e3 a4 a3 e5 d4 cxd4 Bc4 Be7 Ba2 Bf8 b3 axb3 fxe5 bxa2 Ke2 Ke7 Kd3 Ke6 Ke4 b5 h4 g5 c4 b4 h6 g4 h5 d3 c5 b3 a4 d6 h7 g3 h6 d2 a5 g2 a6 Qe7 a7 Bb7+ c6 Qc7 Qc2 d1B Nd2 Ba6 Ngf3 g1B Nd4+ Ke7 Kd5 Qd7 e4 Bf1 c7 Nc6 c8Q Qh3 e6 Kf6 e7 Kg5 e8R Kf4 e5 Qh2 e6 Qf2 e7 Bg7 Nc4+ Qd2 Qa6 Ne5 Rc8 Bf6 e8R Be7 Rc6 Rd8 a8R Nf3 Nb6 Bg2 Bb2 Ke3 Bc3 Bh2 Rf1 Bg3 Bb2 Rd7 Rec8 Rd8 Rc4 Nf6+ Kc6 d5 Kb7 Nd7 Nc6 Ng1 Nb8 Be2 R4c6 Bc4 Be5 Qc3 Ra7 Bf3 Na8 Nb6 Qh2 Qc2 R8c7 Rhe8 h8Q Bc5 Qh7 Rh8 Qg7 Rd7 h7 Bh1 Rad1 a1B Rd4 Be7 Rdf4 Bd4 Qf6 Bdc5 Rg4 Rc8 h8R b2 Rh7 Rh8 Qa1 Bb3 Rga4 Ba2 R7a5 Be4 Rg7 Rh3 Rh7 Rd8 Qd6 d4 Rc8 Bed5 Qc7 Rh8 Qf2+ Kd3 Qf6 Ke3 Qe6 Be4 Qc4 Bd5 Qa6 Rh1 Rg7 R8h5 Rh7 R5h3 Rh6 Bcd6 Qd7 Bgh4 Rh7 Kd2 Rc7 Rd3 Qd8 Be6 Rcc5 Bg3 Rcc4 Ke3 R7c6 Bc5 Qc7 Bd5
1Nnbn2B/1r1BpN2/n1B5/1p6/kn2qr2/Bb3pQ1/1RQ2b1Q/2KB3B w - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 f5 b4 a5 a4 axb4 Ra3 d4 Rf3 d3 e4 fxe4 cxd3 exf3 d4 Bg4 d5 Bc8 d4 Kd7 Kd2 h5 g4 b5 f5 c5 f6 c4 f7 b3 g6 b2 g7 h4 g5 h3 a5 h2 d6 Kc6 a6 Nf6 g8B Bd7 a7 Ng4 d5+ Kc5 g6 Kb4 g7 Bc6 d7 Rh3 d6 Nf6 Na3 Qe8 d8Q Nfd7 Ne2 Nf6 d7 Rh4 Qc7 Bd5 d8Q Rf4 Nd4 Na6 Qdb8 Qc6 Bg2 Ne8 Qc2 b1N+ Kd1 c3 Nc4 Nd2 Nd6 Bb3 Ba3+ Ka4 Kc1 Qb7 Nc6 Ne4 Re1 h1N Re2 Nhf2 Bh1 Nd2 Bh7 Nc4 g8B Bg7 f8B Be5 Bg7 Nb6 Bf5 Nc8 Nf7 Bd4 Bh3 Bb6 Bd7 Ba5 Qd6 Bd8 Qbc7 Rb8 Bh8 Qa8 Qh6 Rb6 Nb8 Qe4 a8B Rb7 Qh2 Nd3+ Kd1 Ndc5 Kc1 Nb4 Qe5 Nca6 Qg7 Rb6 Bac6 Rb7 Qgg3 Rf6 Qb1 Rf4 Rb2 c2 Bh7 Qe5 Bd3 Qe4 Be2 Qe6 Bd1 Qe4 Kd2 c1B+ Kc3 Be3 Qbc2 Bd4+ Kd2 Ba7 Kc1 Bf2
1nB1nNR1/4p1B1/Q2q2Qp/R4Kn1/2Q4p/3r1k2/R2Qb3/q1nQQ1rr w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 h5 cxd4 g4 Qb6 h6 Bb7 Nd2 Kf7 Ndf3 Kg6 Nh4+ gxh4 g5 Bg7 hxg7 Nf6 g8R+ Kf7 g6+ Ke6 g7 Bc8 Bd3 Kf7 Bf1 Qd8 Kd2 Ke6 c4 Kf5 f4 a5 b4 d5 b6 h6 c5 d3 Ke3 d2 b7 a4 c6 a3 c7 a2 b5 Qe8 b6 Nh5 Ne2 Kg4 f5 Ra4 f6 Nf4 f7 Nh5 f8Q Qc6 Qe8 Rd4 Bb2 Qd6 Rh2 Nf6 Nf4+ Kg3 Qea4 Ne8 Bh3 Bg4 c8Q Be2 Ne6 Rh7 Nf8 Rh8 Qb1 d1R Qa6 Rh1 Qcc4 Rdd1 Bc8 Rdg1 Kd4 e3 Qe1+ Kf3 Bc3 Bf1 Qd1+ e2 Qd2 e1N Bb2 Nd7 b8Q Be2 b7 Nd3 Qbc7 Nc1 Qd8 Nb8 Qe1 Qg6 Ke5 Qd6+ Kf5 d4 Qda5 d3 Qad2 Rg4 Qdd1 d2 Bf6 Rd4 Be5 Rd3 Bc3 Nd7 b8Q Rh7 Qb1 Nb8 Qdc2 d1N Qcd2 Nf2 Qbb3 Nh3 Qbd1 Ng5 Rf2+ Kg3 Bf6 Bf1 Re2+ Kf3 Re5+ Be2 Ra5 Qc7 Rh8 Ne4 g8Q Qd6 Qgg5 Rg7 Rg8 Rg6 Qh5+ Rg4 Qg6 Rgg1 Bg7 Ng5 Rb1 a1Q Rb2 Rf1 Rba2 Rfg1
Bq5K/1N2QRQ1/b5b1/4QQ2/1pppp3/1knN4/1nb1b1Q1/rQR1Rr2 w - - 0 1 legal: proof: d4 a5 h4 b5 c4 g5 b4 axb4 c5 e5 dxe5 gxh4 Be3 b3 Bh6 Ra3 Bc1 Ra8 Kd2 Bh6+ Kc3 Bd2+ Kd3 Ba5 e6 Bb6 cxb6 f6 Kd2 Ba6 Ke1 Bc8 e4 Bb7 e5 Bc8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Ke2 Kc5 Kd3 Kb4 Ke4 h5 Kf5 d5 Kg6 c5 Kg7 h3 e8R d4 g4 h4 a4 c4 f4 b2 a5 h2 a6 h3 f5 Rh4 b7 Qd7+ e7 Rh8 g5 Nh6 g6 Nc6 b8Q Na5 f6 Qa7 f7 Nc6 f8Q Bg4 Bg2 Be2 Nf3 Ng4 Nc3 b1B Rf1 h1B Ne1 h2 Ne4 Nf6 Nd6 Bf5 Nb7 Ne4 Rc1 Nc3 Nd3+ Ka3 Qc2 b4 Qb1 Rh5 Qc7 Qb8 a7 Be4 Qf7 Rf5 Kh8 Ka4 Rfe1 Rf1 g7 Bg6 g8Q Ka3 Bd5 Bhe4 Rf8 h1B e8Q Bef5 Qee7 Bhe4 Qh4 Bc8 Qf5 Ka4 Rf7 Ka3 Nbc5 Ba6 Nb7 Ka4 Qhe7 Ka3 Nf4 Bc2 Nd3 e4 Qce5 Nd8 Qgg7 Ne6+ Rf8 Nc5 Bc6 Be8 Rf7 N5a4 Qg2 Nb2 Bd5 Kb3 Qeg7 Qc8 Bc6 Rb8 a8Q Qd8 Qa7 Ra8 Qac5 Qb8 Qcd6 Bb5 Qde5 Ra1 Nd8 Ba6 Ba8 Bcd1 Nb7 Bc2 Rf6 Bg6+ Rf8 Qd6 Rf7 Qb8+
nr3qq1/1Q1pQ1qk/R1B4B/1R2N1n1/2pp1Br1/2Rb2p1/1K2BB2/5qB1 w - - 0 1 legal: proof: e4 e5 b4 h5 g4 hxg4 a4 f5 d4 b6 a5 Be7 c4 Bc5 Nc3 exd4 e5 b5 cxb5 Bb6 Ne4 fxe4 axb6 Qf6 Qf3 Qe7 Qd1 Qd8 Kd2 Kf7 Kc2 Kg6 h4 a5 f4 c5 h5+ Kh6 b7 g5 b6 e3 e6 g3 e7 c4 e8B g2 f5 e2 b5 e1Q f6 a4 f7 a3 f8B+ Kh7 h6 a2 Qf3 g4 Be3 Qg5 Kb2 Qf4 Be2 Ne7 Rh3 Qf5 Bf7 Ra4 Bd5 Qg6 Bc6 Qg7 Bf2 Na6 b8R Ng8 b7 Qf1 b6 Ra3 Qb3 Ra5 Nf3 g1Q Ne5 Nc7 Rc3 Na8 Qb4 Nf6 Qe7 Qg3 Bg1 Ne4 Bf2 Rg8 Bg1 Kh8 h7 Ng5 Bf2 Rd5 Bg1 Rd6 Bf2 Rg6 Bg1 Qgf7 Bh6 Rd8 Bf2 Qg8 Bg1 Qff8 Bf2 Nf7 Bhe3 Kg7 h8B+ Kh7 Bg7 Ng5 Bh6+ Qgg7 Bg1 Qg2 Bf4 g3 Bfe3 Qd5 Bef2 Qdg8 Rb1 Nc7 Ra8 Re8 b8Q Bb7 Ra6 a1Q+ Kc2 Rd8 Rb5 Qf1 Kb2 Na8 Qc7 Ne4 Qb8 Rg4 Qc8 Ng5 Qb8 Bc8 b7 Re8 Qa7 Rd8 b8B Bb7 Ng6 Rc8 Bf4 Rd8 Ne5 Rb8 Bcf3 Be4 Qb7 Bc2 Bc6 Bd3
rBk2B2/4brn1/4rnqR/1pBBB1Nq/RrN5/2K5/1r4R1/rB1r3B w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 h5 Qb3 f5 Ng1 f3 Qc4 Be6 Qe4 f4 Qf5 Bd7 Qg5 Bf5 gxf5 Nc6 Qg3 Nb8 Qg4 hxg4 h4 Kd7 e4 c5 d4 g5 Kd2 b5 a4 g3 h5 f2 a5 g4 h6 b3 f6 f3 a6 g2 a7 g3 f7 c4 d6 b2 h7 Qe8 d5 Bh6+ Kc3 Na6 f8B Nc5 e5 Qe6 Nh3 g1R Na3 b1Q Bg2 f1R Bf4 f2 Ng5 Qh3 e6+ Kc8 e7 Qh5 e8B Ne6 Bg6 Rd1 B6e4 f1R d7+ Kb7 d8B Nf6 d6+ Kc8 Bc2 Ng7 Bd5 g2 Bb6 Rfe1 Bc5 Rgf1 Be5 g1R Rh2 Rg4 Rg2 Re2 Bg6 Rb2 Ra2 Rg8 h8R Rff2 Bh7 Qbg6 Ra1 Re4 Ra2 Rb4 Ra1 Rfb2 d7+ Kd8 Bb8 Re6 Be5 Rb8 a8B Rb7 Ne4 Bf4 Ng5 Bh2 Bb8 Bd6 Ra2 Be7 Ra1 Qf7 Bb1 Qfg6 Rh6 Rh8 Bba7 Kc7 d8B+ Kc8 Bb8 Ra7 Ra2 Rh7 Bac6 Ra5 Bdc7 Ra8 Bd3 Ra1 Be5 Rd1 Kd4 c3+ Nc4 c2 Ra4 Ra1 Kc3 c1R+ Bc2 Rg1 Bb1 Rd1 Rg3 Raa2 Bh1 Ra1 Bcd5 Nge8 Rg1 Rf7 Rg2 Ng7
2k1n2n/R2q2N1/b4qb1/1nr1RrnN/1p2R2R/2p4R/pK4B1/2N1BRR1 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 g5 h4 gxh4 a5 Bh6 c4 Be3 Qf3 cxb4 Qc6 Bb6 Qc5 d6 axb6 d5 Qd4 Qc7 c5 Qd8 Qc4 dxc4 Kd1 Kd7 Kc2 e5 g4 h5 f4 a5 d4 a4 g5 h3 g6 h2 d5 e4 f6 a3 f7 e3 f8N+ Ke8 b7 e2 g7 e1Q d6 h4 c6 h3 c7 Qeh4 f5 Nf6 g8R Qd7 Nc3 Nc6 b8R Ne5 Bd2 Ng6 Nge2 Ra5 Nd5 Rh5 Ndf4 Nh8 Rgg1 b3+ Kb1 b2 Be1 b4 Rb5 Qf2 Bg2 Ba6 N8e6 Qf1 Re5 Rc5 Kc2 b1N Nc1 Nc3 Re4 Rg5 Nh5 Nb5 Ra2 Qf3 Re5 Qfc6 Kb1 Qb6 c8R+ Qbd8 Rc7 Q8e7 Rae2 a2+ Ka1 Qf8 Neg7+ Kd8 R5e4 Ne8 f6 Rgf5 Ra7 Kc8 f7 Qfe7 f8R Qf6+ Re5 Rf3 Rf1 Rf5 Rhg1 h1N Re4 h2 Kb2 Ng3 Rff4 h1B Rh4 Ne2 Rf7 Nf4 Rf8 Nh3 Rf7 Qc6 Rf8 Ng5 d7+ Kb8 d8R+ Qc8 Rd2 Qd7 Rd3 Kc8 Bf1 Bf3 Bg2 Bd1 Rdh3 Bf3 Reg4 Bd5 Rf4 Bf7 Rff1 Bg6 Rf7 Qb6 Rfe7 Qbc6 Ree4 Qf6+ R7e5 c3+
N6R/B3Kn1N/5b2/1p4b1/B2p1Rrp/R1bkB1rN/2rB3n/6BB w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a6 b5 axb5 g4 f5 exf5 b6 a4 Ra7 f6 Ba6 a5 Bc8 axb6 Ra8 f4 g5 f5 Qc7 f7+ Kd8 f6 Qc5 h3 Bb7 Bc4 Qf5 Bf1 Bf3 gxf5 g4 Nc3 g3 Nb1 Bg4 hxg4 Ra6 Ra4 Ra7 Ra1 Ra8 Ke2 h5 Kf3 e5 Ke4 d6 Kd5 Kd7 c4 d3 g5 d2 b7 g2 g6 h4 c5 e4 g7 e3 c6+ Kc7 Ke6 Kb6 c7 Kc5 c8R+ Kd4 Nh3 g1B Nc3 d5 Qf3 d1R Bd2 e2 Na4 e1B Ra3 Ra1 Bg2 Ra2 Nb6 Nh6 g8B Ra7 Na8 Na6 b8B Bc5 f8N Ng4 f7 Rc2 f6 Nb4 Nh7 Bb6 f8B Rg7 f7 Nc6 Qf6+ Nce5 Ba7 Be3 Rf1 Bg5 Ke7 Nh2 Bh1 Rg6 Re8 Kc4 Rf5 Bc7 Bh6 d4 f8B+ Nf7 Rf4 Be5 Be3 Rb2 Bg1 Bc3 Rc8+ Kd3 Re8 Nd6 Bb3 Nf7 Ba4 Rg2 Rc8 Rg3 Bfg7 Rd8 Rb8 Rd6 Rh8 Rc6 Rg4 Bc1 Bd2 Rc4 Re4 R6g4 Bgh6 Rc6 Be1 Bg5 Rf4 Rc4 Bef2 Rb4 Be1 Rb2 Bd2 Rc2 Rf5 Bgf4 Qc6 Bg7 Rf6 Be5 Bhe3 Bh6 Rf4 Bg5+ Qf6 Bexf6+
3B3R/Rp3N1R/bRqp2n1/1pB1RBr1/NNkp3r/r2R1b2/2b3n1/7K w - - 0 1 legal: proof: f4 e5 d4 exf4 c4 h5 b4 h4 d5 h3 c5 f3 gxh3 Nh6 h4 Ng8 h5 c6 Qb3 cxd5 c6 Bc5 bxc5 d6 Qb6 axb6 Kf2 Ke7 a4 Ke6 e4 f5 h4 g5 e5 g4 a5 d4 h6 Kd5 a6 f4 c7 Qf6 e6 Ra7 e7 Nd7 e8R Qg6 h7 Qh6 c6 Qh5 Ra3 Kc5 Bd3 Qd5 h5 Ne7 h6 Qf7 Nc3 Qd5 Nge2 g3+ Kg1 g2 Bf5 Nf8 Na4+ Kb5 Nec3+ Kc4 Na2 Qa5 Nb4 Ne6 Rd3 Qc5 Ba3 Bd7 c8R Ng6 c7 f2+ Kh2 Ra8 a7 f1B Rb8 g1R c8R f3 Rc6 Nef4 Re5 f2 Rbc8 Rf8 h8N Bg2 h7 f1B Nf7 Bf3 h8B Ng2 Bf6 Rh8+ Bh4 Rh5 Rh8 B1e2 Rh7 Bd1 Rh8 Bc2 Rh7 Rg5 Rh8 Rg4 Bd8 Rg5 Rh7 Re1 Rh8 Re4 Kg1 Be8 R1h7 Rf4 Kh1 Bd7 Rc7 Bb5 Rc8 Ba6 Rc6 b5 Rb6 Rc8 a8R Qc6 Ra7 Rc7 Nd5 Re7 Bc5 Re8 Re1 Re3 Nb4 Rfg4 Rdd1 Rc3 Rd3 Ra3 Re5 Rh4+
4r3/2r1BBkr/1Np3r1/1qN3Qq/2q1R3/1N5Q/5BKB/bnNN1r2 w - - 0 1 legal: proof: b4 a5 bxa5 e5 f4 exf4 h4 b5 c4 g5 a4 gxh4 a6 d5 cxd5 b4 a5 Bb7 axb7 Na6 b8B Nc5 a6 Nb7 axb7 Ke7 Ra6 Ke8 Rg6 Nh6 Rg8 Nxg8 Kf2 f5 g4 Kf7 d4 h5 e4 c6 d6 b3 d7 f3 d5 b2 g5 h3 g6+ Kg7 d6 h2 e5 f4 e6 h4 e7 h3 e8N+ Kh6 g7 Rh7 Nc7 Qg5 d8N Nf6 g8Q Qb5 d7 Qb4 Nce6 Ra2 Bc4 Ra8 Nc5 Qb5 Qb3 Bg7 Bf7 Nd5 Ne2 Nc3 Re1 h1R Nde6 h2 d8B Rg1 Be7 h1Q N6d4 Rg6 Be3 Qh5 Nc1 Bf6 Bc7 Re8 b8N Qc4 Nbd7 Bg7 Nd2 b1R Nc2 Bd4 Qa3 Rb7 Nb6 Nb1 Ndb3 Ba1 Bd4 Qb5 Ne3 Ra7 Bce5 Rc7 Nd1 Qc4 Re2 Qb5 Kf1 Qc4 Bg1 f2 Bh2 Qb5 B5f6 Qc4 Bh4 Qb5 B4g3 Qc4 Kg2 f1R Re4 Qb5 Qh8 Qc4 Qhb2 Qb5 Qd2 Kg7 Qd5 Qc4 Qg5 Qb5 Bh4 f3+ Kg3 f2 Kg2 Bd4 Na5 Ba1 Qh3 Re1 Nab3 f1Q+ Kg3 Qf4+ Kg2 Rf1 Bf2 Qfh4 Re5 Qhb4 Re4 Q4c4
8/1BBNrB1n/Q4b2/q1Qbq2K/kn6/4NbR1/1r1B1BnN/r1N4n w - - 0 1 illegal: No possible last move
1rRb3K/5q2/rB1n1Q2/4RQR1/RNnQ1nn1/b3Q3/2N4k/nrn1Rq2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kf2 Ke7 e4 Kf6 b4 Kg5 c4 Kh4 b6 d5 b7 a5 e5 g5 c5 a4 f6 g3+ Ke1 a3 Kd2 g2 Kd3 g4 b5 g3 e6 f2 c6 f1Q+ Ne2 Kh3 e7 g1N e8R g2 b6 a2 f7 f3 c7 f2 c8R Ra6 Be3 Nd7 b8R Ngf6 b7 Ng4 Re5 Qf6 Nc3 Ba3 f8Q Nb6 Qe1 Qf3 Qf5 Nc4 Rc5 Qf4 Rbc8 Nd6 b8Q Rf8 Qd2 Rg8 Re1 a1N Qbb2 Rh8 Na2 Rg8 Qg6 Qf7 Qf5 Rf8 Qdc3 Rg8 Nb4 Rf8 Kd2 d3 Nd4 Ne2 Ndc2 g1B Qd4 Rg8 Qc1 Nf4 Kc3 d2 Rb5 Kg2 h4 d1R h5 Bh2 Qcd2 Rb1 h6 Bg3 h7 Bh4 h8Q Bd8 Qhf6 Rh8 Rg1+ Kh2 Ra5 Rf8 Q4d3 Re8 Kd4 Rg8 Kc5 d4 Ra4 Re8 Q3c3 d3 Kd4 Rg8 Qc1 d2 Qc5 d1N Qd5 Nh6 Rg5 Ng4 Qd2 Nb2 Qf3 Ndc4 Ke4 Re8 Bb6 Nbd3 Qfe3 Nc1 Qd1 Re7 Qdd4 Rb7 Q5e6 Rb8 Kf5 Qg1 Qed7 f1N Q7d5 Nfd2 Qd7 Qd5 Qdf7 Ne4 Qh5+ Nh3 Kg6 Qf1 Kh7 Ned6 Kh8 Qf7 Qhg6 Nf4 Qh7+ Nh6 Qhf5 Ng4
Q7/1B1b1qk1/2nR1nr1/QnQ3b1/KqR1N1R1/R1Q5/5Nb1/1nqr1Q1q w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 g5 d4 f5 Kd2 Kf7 Kc3 a5 h4 c5 e5 f4 b6 f3 e6+ Kg7 d6 g2 h5 f2 d7 g3 b4 a4 d5 a3 Kb3 g4 e7 a2 e8R Be7 d6 Qc7 d8R Nc6 b7 Bd7 b8Q Bg5 b5 Nf6 b6 Ra6 Nh3 g1N b7 g2 Qa7 g3 b8Q Ne2 Nd2 g1N Bg2 f1B Ne4 Nf3 Nhf2 Nc3 Rh4 Nb1 Qba8 Rh6 Qd3 Rg6 Rg4 Ra5 Bh1 Bg2 Qf1 Rb5+ Ka4 c4 Rc8 c3 Red8 c2 Qc5 c1Q Qa5 Nfd4 h6+ Kf7 h7 Kg7 Qac3 Rb3 Q3a5 Rd3 Qac3 Rd1 h8Q+ Kf7 Qe8+ Kg7 Qee5 Nb5 Qa5 Be6 Qec3 Qf7 d7 Bf5 Rh8 Be6 d8Q Bd7 Rh6 Ncd4 Nd2 Ba8 Qe2 g2 Qc2 g1Q Qcc7 Ne8 Q2c3 Re6 Qf1 Be4 Bf3 Qh1 Qd6 Bd5 Rc4 Rf6 Qc5 Rc6 Be2 Bg2 Bf3 Rf6 Bb7 Nc6 Q3a3 Rd6 Qda8 Re6 Nde4 Red6 Rh3 Rg6 Rd3 Nf6 Q3c3 N1a3 Rb1 a1Q Rd6 Qab2 Ra1 Nb1 Ra3 Qb4+
q2r4/Q1Nbnk1N/1Bq1n3/2pQ1r1N/b5B1/QR3Qrb/4KQNq/1n6 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 b4 h5 Ba3 f5 Bc1 f4 Ra6 Be7 Rg6 Bd6 Rg4 hxg4 Qa4 f2+ Kd1 f3 Kc2 Bf4 gxf4 Bb7 Kb2 Rh3 Qd1 Rh8 Kc2 Bc8 e4 g5 d4 a5 Kd2 g3 h4 c6 d5 g4 d6 g2 d7+ Kf8 e5 a4 f5 a3 e6 a2 e7+ Kg7 e8N+ Kf8 f6 a1Q h5 g3 h6 Bb7 b6 Qc7 d8Q Qa4 b5 Qh7 f7 Qa3 Rh3 Ne7 Be2 f1B Qd5 f2 Nc7 Rg8 Bg4 Na6 Nf3 g1N Nc3 g2 Nh4 Rd8 Ne2 Nc5 Nf4 Qa8 Rb3 Ne2 Nh5 g1R Ng2 Bc8 b7 Bd7 b8Q Rg5 b6 Rf5 b7 Ne6 Qa7 Nc3 b8Q Nb1+ Ke3 c3 Qa3 c2 Qba7 Bd3 Q1f3 f1B Bb2 Qh8 h7 Bb5 Bd4 Ba4 Bb6 c1Q+ Kf2 Qc2+ Ke3 c5 Qf2 Qg8 h8Q Qc6 Qc3 Qb2 Qcd3 Qe5+ Q3e4 Qh2 Qef3 Qh8 Ng3 Kg7 f8N Kf7 Nh7 Qg8 Nh5 Qe8 Ne1 Bh3 Ke2 Rg3 Ng2 Qh8 Na8 Qc3 Nc7 Qa5 Rb2 Qa6+ Rb5 Qc8 Rb3 Q8a8
2Rq1bk1/1NQ1Qq1q/3n2rn/5B2/QbqR4/1Qq4R/3n2pr/NK4QR w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Bb7 Ke1 Be4 Bg5 f4 Ra1 Bf5 gxf5 hxg5 Kd2 Kf7 Kc1 d5 e4 a5 b4 g6 c4 f2 h4 a4 f6 a3 e5 f3 b6 d3 h5 g4 b7 g5 h6 a2 b5 g3 b6 d4 c5 g2 c6 g4 h7 g3 c7 Qe7 c8R Nc6 b8Q Nh6 b7 Nd8 Ne2 g1B Qc7 g2 b8Q Nb7 Nec3 Ra6 Nb5 Nd6 N1a3 d2+ Kb2 d3 Nc2 Qd7 Be2 Bh2 Qg1 f1N Rd1 f2 Bg4 Bf4 Bf5 a1Q+ Kb3 Qa5 Kb2 Qc3+ Kb1 Be3 Qbb7 Bc5 Na1 Bb4 Qbb6 Ne3 Qbb7 f1Q Qbb6 Nec4 Qbe3 Rg8 h8R Rg6 Rh7+ Kg8 e6 Qe8 e7 Qf7 e8Q Rc6 Q8e4 Rc5 Qa8 Re5 Qa3 Re4 Qeb6 Rh4 Qa4 Rh2 Qbe3 Ng4 Rh3 Nh6 Qea7 Qh7 Qb3 Qf3 Qaa4 Qc6 Rc1 d1Q Rd8 d2 f7+ Kg7 Rc8 Qh5 Rf1 Qd5 Rf4 Qh4 Rd4 d1Q+ Ka2 Qe2+ Kb1 Qf6 Qb2 Qd8 Qbb3 Ne4 Nd6 Ncd2+ Ka2 Qec4 Nb7 Nf3 Kb1 Nd6 Be4 Kh8 Bf5 Nd2+ Ka2 Bg7 f8Q+ Qdg8 Qfe7 Qgf7 Bd7 Kg8 Bf5 Qg3 Kb2 Bf8 Ka2 Qe3 Kb2 Qec3+ Ka2 N2e4 Kb1 Nd2+
3b2Q1/q1R3bb/1B2B1BN/N3Q2Q/1KnQ2b1/n1rQ1n2/k2p4/1bqrB3 w - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 c5 a4 cxd4 axb5 Rh7 g4 Rh8 Ra3 g6 Rg3 g5 exf5 gxf4 g5 Nc6 Rg2 Nb8 Rg4 hxg4 Kd2 Kf7 c4 e5 h4 d5 f6 Ke6 b6 a5 b7 e4 f7 a4 b5 a3 h5 d3 Kc3 d4+ Kb3 f3 c5 Kd5 g6 g3 h6 a2 b6 a1N+ Kb4 d2 g7 f2 h7 g2 Qf3 d1B Bb2 d3 Qe2 e3 Nh3 g1B Bf6 d2 Rh2 Bg4 Ng5 Qe7 Na3 Nd7 b8B Nh6 g8Q Bg7 f8Q+ Nf7 b7 Nb6 Qe8 Nc4 Bd4 Bc2 Bg3 Rc8 b8Q Qa7 c6 Bb1 Qd3 e2 c7 e1Q Rg2 Qc1 Bb6+ Bd4 Be2 f1B Be1 Bf2 Bd1 Bh4 Bc2 Bfe2 Rg3 Bef3 Qa4 Be4 Re3 Bg6 Re6 Nfe5 Nf7 B6f5 Nh6 Bd8 Qae8 Nf3 Rc6+ Be6 Qh5+ Bf5 Qf1 Bg7 Rc5+ Kd4 Bd3 Bg4 Bg6 Bef5 Qfh3 Nd6 Nc4 Nc2+ Kb3 Be4 Na5 Na3 Kb4 Ndc4 Rc6+ Kd3 Qf1+ Kc2 Qd3+ Kb2 Rc5 Qa6 Qa7 Ka2 Qe5 Rb8 c8B Ra8 Qad7 Qa7 Q7d4 Rb8 Be6 Rc8 Rc7 Bef5 Qe8 Rf8 h8Q Rg8 Bgf7 Bh7 Bg6 Rf8 Qg8 Rf5 Rd7 Rh5 Re7 Rh1 Qh5 Rc5 Rc7 Rf1 Bg3 Rd1 Be1 Re5 Qb5 Re4 Qbe5 Re3 Q3e4 Rc3 Qee3 Bdf6 Qed3 Bd8
2qnrBk1/n1qBQ1q1/3n2Q1/1R3p1r/1b2QnN1/6K1/Nb3nQ1/Q3NN2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 b4 h5 g6 f6 Qd3 Ke7 Qd1 Bb7 Ra3 Bd5 Rg3 Be6 Rg4 Bf7 gxf7 hxg4 Kf2 a5 h4 d5 c4 g5 e4 d3 h5 a4 b6 d4 c5 a3 c6 f5 e5 f3 c7 a2 c8Q a1Q e6 d2 b5 d3 b7 Qc3 h6 Nf6 b6 Nh5 h7 Nc6 b8Q Nf4 b7 Qc7 Qe2 d1N+ Kg3 d2 Qe4 f2+ Nf3 Nd8 Bb5 Bg7 Rf1 Kf8 Bd7 Q3c4 Ne1 Bb2 Rh1 Nc3 e7+ Kg7 e8Q d1N f8N Nb5 Ng6 Na7 Ne5 Q4c5 Qg6+ Kf8 Kh2 Qc3 Nd2 f1N+ Kg1 g3 Ng4 Nfe3 Nf1 g2 Kh2 g1B+ Kg3 Q3c6 Bd2 Nf2 Bb4+ Qc5 Rh6 Nc4 Ba3 Nc6 Qa7 Nd6 b8N Qc3+ Qae3 Na7 Qcb7 Qc8 Qg2 Q3c7 Na6 Rb8 Qbe4 Ra8 Ne5 g4 Nb4 Rb8 Na2 Ra8 Kh4 g3 Ng4 Rb8 Qh1 g2 Kg3 Nd1 Qe2 Bc5 Qh4 g1Q+ Q2g2 Nf2 Bb4 Rg8 h8Q Rb7 Ba3 Bb4 Qc3 Rb8 Rh7 Rg7 Qhe7+ Kg8 Qc1 Ra8 Qa1 Rb8 Qh5 Rg6 Rf7 Rg5 Qg6+ Kh8 Rf6 Rh5 Re6 Ra8 Re5 Rb8 Qh6+ Kg8 Rb5 Nd1 Qhf6 Qd4 Qh6 Qg7 Qg6 Nf2 Be8 B4c3 Qa4 Qa6 Qgg5 Nde6 Qd7 Nb7 Bf8 Nd6 Qae4 Bb4 Qde7 Rd8 Bd7 Re8 Qh6 Qac8 Qg6 Nd8
B1nQnq1B/2bb2r1/1NQ4N/2rNR3/1Q1p2K1/7N/Qbn4k/r1qN3r w - - 0 1 illegal: No possible last move
1B1r4/Qn3bNK/2Rnq3/1p2BB1N/qB2bQ1n/4Nr2/2q2n1N/3q2kN w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 f5 g3 a5 Qc2 axb4 Kd1 f3 Qb3 f2 Kc2 Qd6 Kd3 Qc5 Qd1 Qd6 Kc2 Qd8 a4 h5 Ra3 f4 Rd3 f3 Rd4 Bd6 Rg4 Bf4 gxf4 hxg4 Kd3 Kd7 Ke4 Kd6 h4 Kc5 d4+ Kc4 a5 g5 d6 c5 f5 b5 d5 g3 d7 g2 d6 b3 f6 b2 Kf5 g4 Kg6 g3 e4+ Kb4 e5 c4 a6 Kc5 a7 c3 f7 c2 f8Q Na6 h5 Nf6 e6 Ne8 h6 Rb8 a8N Nf6 h7 Ng4 e7 Qa5 d8B Be6 Bd2 Kd4 e8N c1Q d7 Nc5 Nf6 Nb7 Bd3 f1Q Nb6 f2 Nh3 g1Q Nbd5 g2 Bb4 Qe2 Nh5 f1N Qa4 Nd2 Nf2 Ne4 Qd6 Re8 Nd2 b1B Nf1 Rf8 Bc7 Rf3 d8N Bf7+ Kg7 Qa7 h8B Qee3 Qg3 Ned6 Nh2 Qe7 Bh7 Be4 Bf5 Rc8 Bb8 Qgf1 Ndf6 Ke3 Ne6 Rd8 Kh7 Qe2 Qa1 Qcb2 Rc1 Qd1 Rc6 Qbc2 Nh1 Qa8 Neg7 Qe6 Nge8 Ke2 Qa5 Nf2 Nd5 Qa6 Qb6 Qa3 Qf4 Qaa4 Ng4 Kf1 Qa7 g1N Bd4 Rb3 Neg7 Nf3 Nh2+ Kg1 Ba1 Nh4 Be5 Rh3 Ne3 Rf3
3br1bR/5Q2/2KQ2R1/q2Q3B/4bRNQ/b1Nb1q1r/bp2R3/n1kb3Q w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 h4 e4 h5 e3 g5 Be6 Bb2 Nd7 Bf6 gxf6 Qc2 f5 Kd1 f4 Kc1 Ne5 Qd1 Ng6 hxg6 exf2 Na3 Bd7 Nb1 Bc8 Kc2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kc4 a4 f5+ Ke5 c5 d6 h5 a5 b5 a6 f3 d7 h4 d5 f4 a7 h3 d6 h2 g7 b3 g6 b4 Ra4 b2 Nc3 b1B Ra6 b3 Qc2 b2 Ke6 Nf6 g8Q Ng4 g7 Rh3 Bg2 f1B e4 f2 e5 f3 Qc1 Kd3 Kd5 c4 e6 Be2 e7 f1Q e8Q f2 Bf3 Qa5+ Kc6 Ba2 d8Q Ne3 d7 Nc2 Qef7 Bd1 Qh4 Na1 Bh5 Ba3 Nf3 Qe2 Re1 f1B Rb6 h1B Rb4 Qf2 Qh6 Kc2 d8Q Bd3 Qdd6 Be6 Ra4 Qe3 Re2+ Kc1 Qgd8 Rb8 g8R Qf4 Qdg5 Re8 Qgd5 Bg2 Nh2 Bge4 a8R Qe3 Nb1 c3 Rg6 c2 Nc3 Qf4 Qh8 Qf6 Ng4 Qf3 Qfh7 Bg8 Qf7 Bf5 Rf4 Bfe4 Na4 Kb1 Qhh7 c1B Qh6 Be3 Nc3+ Kc1 Rb8 Bb6 Rd8 Re7 Rf8 Bd8 Re8 Bh7 Rh8 Bg8 Qhh7 Re8 Qh6 Rg3 Qh1 Rh3 Qg5 Qe3 Qh4 Qf3
3QQ1N1/r2R4/2RR1Br1/b4K2/1p1B1rRr/2n2krB/qn1B2Rq/2r3q1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 f5 Ng1 f3 Nc3 f4 Ne4 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kf7 e4 Kf6 a4 Ke5 h4 c5 d6 g5 d7 b5 h5 b3 h6 c4 h7 b4 f6 b2 f7 b1Q a5 c3 a6 c2 a7 Nf6 Ne2 Bc5+ Nd4 Qc7 f8R Nd5 d8R Nc6 Rf6 Nc3 Rd7 Na5 Bh3 Qa2 Rc6 Nc4 Rh2 Bb6 Rg2 Ba5 Nf5 Nb2 Ne7 Rhg8 d3 Rg6 Bd2 c1R Ng8 Re8 a8R g3+ Kf1 g4 Rad8 Re7 h8B+ Reg7 Kg1 f2+ Kh1 f3 Rdd6 Qaf7 R8d7 Qe6 Ra2 f1R+ Rg1 g2+ Kh2 f2 Kg3 Re1 Kh4 Re3 d4+ Kf4 d5 f1R e5 Qf7 e6 g3 e7 Ke4 Kh5 Rf4 e8Q+ Qe6 Rc5 Re7 Bd4 Re2 Rcc6 Kf3 Qa4 Ree4 Qd8 Rgf6 Kg5 Rh4 Qb5 Reh7 Qbb8 Qf7 Qe8 Qe6 Qbd8 Qb8 Rd1 g1R Re1 g2 Re3+ Kf2 Rg3+ Ke2 Rg4 Kf3 Ra6 Rhf7 Rdc6 Re7 d6 Qb3 Rab6 Rg6+ Kf5 Qa3 Ra7 Rb7 d7 Qh2 Rd6 Qb3 Rbc6 Rc7 Qg5 Qc2 d8B Rcg7 B8f6 Qb1 Ra8 Ra7 Rad8 Qc2 R8d7 Qb3 Ra4 Qa2 Ra3 Rge1 Rb3 g1Q Ra3 R1e3 Rb3 Nbd1 Rb2 Rd3 Rc2 Nb2 Bfe5 Nba4 Bdf4 Nb2 Qgd8 Rd2 Bf6 Rg2 Bh6 Rg3 Rg2 Rb7 Bf4 Ra7 Bd2 Rf4+
QQ1qb3/2Q3q1/3N2bk/brNRn1qq/2QQ1n2/1Rq3p1/KR6/b1R2B2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 Kd2 Kf7 Kc1 d5 b4 g6 Kb2 Kg7 h4 d3 c4 d2 e4 a4 b6 f2 b5 d4 h5 a3+ Ka2 d3 b7 g4 h6+ Kh7 c5 f3 b6 g5 e5 g3 f6 g2 c6 g4 f7 Nd7 b8R Ne7 e6 Ne5 b7 N7g6 e7 Bd7 e8Q Qg5 c7 Bb4 f8Q Nf4 c8Q Ba5 Qdc1 d1Q Q1c7 d2 Ne2 g1Q Nbc3 Qe1 Rc1 d1Q Na4 Qc3 Qc4 g3 Qc8c5 Qh2 Nd4 Qhh5 Nf5 Bc6 Qa7 Qdd8 Nc5 Be4 Nd6 Bg6 Qea4 Be8 Rh2 Bg6 Bh3 f1B Rb2 f2 Qd1 Bg2 Qdd4 Bc6 Bf1 Bce8 Qa8 Rg8 Qe7+ Rg7 Qc7 Rd7 Bd3 f1Q Rb3 Qfd1 Bf1 Qdf6 Rd8 Qg7 b8R Rf7 Rb2 Rf5 R8b3 Qdd3 Ka1 a2 Rd7 Bgf7 Qab8 Kg6 h7 Kh6 Rd8 Bg6 h8Q+ Qh7 Qhg8 Qg7 Qgd5 Qe4 Qda8 Qd5 Ndb7 Qd6 Rd7 Qde7 Rd5 Qd8 Nd6 Qd3 Rd2 Qdf3 Kb2 a1B+ Ka2 Qc3 Rdb2 Rf7 Qcb6 Rb7 Q6c7 Rb5
bk4Bn/1B1nN1r1/1b2Np2/4N2q/q2qb1p1/r1R5/Q1rQ3Q/1QK1N1Q1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b4 h6 Bb2 Qe7 Ra3 Qd8 Bf6 Rh7 Rf3 gxf3 g4 Be7 g5 Rh8 g6 Bf8 Bg5 hxg5 e4 Kd7 d4 a5 Kd2 c5 h4 Kc7 b6+ Kb7 b5 c4 e5 c3+ Kc1 g4 h5 a4 d6 f6 h6 a3 d7 f2 d5 c2 e6 a2 e7 a1Q e8Q f3 d6 Rh7 g7 Ra6 Bg2 f1R Qf7 Ne7 g8B Ra5 Rh3 Qa4 Qa2 Ng6 Nd2 Qd4 Nc4 Ne7 Ne5 Qe8 d8Q Rf2 d7 Rg7 h7 Qh5 h8N Ra3 Nhg6 Ka8 Qe1 Bb7 Qe3 Be4 b7+ Ka7 Qe1 Rd2 Qg3 f2 Ngf3 f1B Ne1 Bc4 Qh2 Bb3 Qg1 Bbd5 Rc3 Rf2 Nf4 Qa4 Ne6 Ng6 Bh1 Nh8 b6+ Ka6 Qc7 Bc5 d8Q Nd7 b8Q Ba8 b7 Bb6 Qd6 Rg2 Qb4 Rh2 Qbb1 Re2 Qd6 Ka7 b8N Kb7 Nbc6 Rh2 Kb2 Re2 Ne7 c1Q+ Ka1 Rb2 Q8b8+ Ka6 Qd2 Qcd1 Qbd6 Ka7 Bf3 Bc2 Bb7 Be4 Qdh2 Qdd4 Qb4 Rc2 Q4b2 Rf2 Qd2 Kb8 Kb2 Re2 Kc1 Rg2 Qg5 Rb2 Qgd2 Rc2+
bb4Br/QR1n2Rq/4BB2/2Kb2nq/1rQ1Nb1B/2n1p1pQ/B1k5/7Q w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 Qb6 Nd2 Qd8 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Nh6 Ng4 hxg4 Bd2 Ng8 Be3 Bg7 Bc1 Bf8 Kf2 Kf7 b4 e5 h4 a5 c4 d5 h5 e4 h6 a4 c5 d3 c6 d2 g6+ Kf6 h7 Ke5 c7 Kd4 f6 Kc3 b6 f3 Ke3 f2 b7 a3 g7 g3 b5 a2 f7 Nc6 b8Q Be7 f8B Nh6 g8B Bd6 b6 Nf7 b7 Qe7 Bg7+ Nce5 Nh3 Be6 c8B Ra4 Ng5 Rb4 Qa7 Bb8 Bc4 f1B Bf6 Bg2 Rb1 a1B Ba2 Bf3 Qf1 d1Q Qh3 Kc2 Qd4 Bc3 Qc4 Nd7 Rf1 Bg2 Rf4 Qh5 Rg4 Bd6 b8Q d4+ Ke2 d3+ Ke3 d2 Qa7 Bd5 Rb3 Nf8 Be6 Nd7 Bb2 Bb8 Ba3 Ra4 Rb7 Bf3 Bd6 Rb4 Bc7 Bh1 Bd8 Bg2 Nf3 Bh1 Rg7 Bg2 Bh4 Ng5 Qh1 Qef7 Bf6 d1N+ Ke2 Nb2 Ke3 Na4 Nd2 Bf3 Qb5 Bce5 Qc4+ Nc3 Qh3 Bec7 Kd4 e3 Ne4 Bf4 Qh1 Nf8 Kc5 Qfg6 Qh3 Qgh6 Qh1 Nd7+ Kd4 Qg4 Nc5 Ra4 Rb4 Ba8 Rb7 Bd5 Ne4 Nb6 Kc5 Rb4 Bgf7 Re8 h8Q Qf3 Qh7 Rh8 Qf5 Qfh5 Qfh3 Qh7 Bg8 Nd7+
kBR4r/nq2QQR1/7R/5RBb/4Q2p/4b2r/Kq1RpnQ1/1N3nnb w - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 e6 h4 gxh4 d6 Nc6 d7+ Ke7 Qa4 Nb8 Qc2 Ba6 Qd1 Bc8 e4 Qe8 d4 Qd8 d5 Kf6 d6 Kg7 Nd2 f5 e5 Kg6 Ne4 fxe4 Bc4 Kf7 Bd5 exd5 Kd2 Ke6 Kc2 h5 Kb3 a5 f4 c5 g4 a4+ Ka2 e3 b4 a3 b6 h3 b7 h4 g5 h2 b5 c4 b6 d4 f5+ Kd5 f6 Kc6 e6 d3 e7 d2 e8Q c3 g6 c2 f7 Bh6 f8R Ne7 g7 Nd5 g8Q Qc7 Qf1 d1N Qff7 Nf2 d8R+ Bd7 Qe4 Bg4 d7 Bh5 Bd2 Ra6 Qgg2 c1N+ Kb1 Ra8 Nf3 Ne2 Rg1 h1B Ka2 Ra4 Rc8 Rc4 d8R Rc3 Rd7 Rd3 Rgd1 Ng1 Qfe7 e2 Bg5 Re3 Rf5 Rc3 Nd2 Rh3 Rcd8 Qc8 Nb1 Qc7 Rd2 Qc8 Bf6 Be3 Bg5 Qc7 Kb3 a2 Rc8 Na6 b8Q Nb4 b7 Kb6 Kb2 Nc6 Qa8 Na7 b8B Qb7 Qf4 Nf6 Qc4 N6e4 Qcf7 Ng3 Kb3 Nf1 Ka3 Qc7 Qae4 Qb7 R7d6+ Nc6 Rg6 Ka6 Rg7 Na7 Nc3 Kb6 Rc1 Ka6 Nb1 Kb6 Kb3 a1Q R1c2 Qd4 Ka3 Ka6 R2c6+ Qdb6 Rh6 Qf6 Bd6 Qfb2+ Ka4 Nc6 Bdf4 Ka7 Bg3 Qb6 Bb8+ Ka8 Ka3 Na7 Ka2 Qb2+
Q2nb3/3k1rp1/1b6/2R1RqK1/RQ1N1RRQ/r5pB/r5Qq/nqN4q w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 c5 Ke2 f5 Ke3 a5 Kf4 g2 h4 a4 d4 g3 h5 c4 h6 c3 e5 a3 d6 a2 d5 c2 b6 c1R b7 Ra7 e6 Ra4+ b4 Ra6 d7+ Ke7 h7 Nc6 b8Q Qa5 d8R Rc4+ Kg5 f4 b5 f3 b6 f2 b7 Nd4 Rh4 Rc2 Rg4 Qe1 Ne2 g1Q Bh3 f1Q Nd2 Qef2 Qa8 Qf7 b8Q Nh6 Nf3 Rb2 Qd2 Ra3 Nc1 Nc2 Qg2 Qh2 Nd4 Bd7 Rc8 Be8 Rc5 Qfh1 Qb4 Rg8 h8R Qf5+ Kh4 Kd6 e7 Kd7 d6 Nf7 Rh6 Nd8 Rf6 Bh5 e8R Bf7 Ree4 Be8 Rf7+ Be7+ Rf6 Rf8 Re1 Rf7 Ree5 Qf2 Kg5 Bf8 Rb1 a1Q Rff4 Rba2 Rb3 Qb1 Rd3 Ra7 Ra3 Na1 Ra6 Qfc2 Ra4 Qf5+ Kh4 Ra6 Rc6 Ra7 Raa6 Ne6 Rc8 Rc7 Ra3 Rc3 Ra4 Rca3 Rc6 Qfd3 Rc4 Be7+ Kh5 Bd8 Rcc5 Bb6 Kh4 Nd8 Kh5 Nc6 Kh4 Nb8 Kh5 Kd8 d7 Qf5+ Kh4 Qe6 Kh5 Ke7 Kh4 Nc6 Kh5 Kd6 d8Q+ Qd7 Qh4 Nd8 Kg5 Qe6 Ref5 Kd7 Rfe5 Qef5+
N1NR1Q1n/1rp2b2/k1q1R3/1nRbR1B1/nn3nQ1/5K1n/7p/N3r1NN w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 h4 gxf4 a4 b5 axb5 e5 g5 Bh6 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Bd7 Qc2 Bh3 Qd1 Bc8 Kf2 Kd7 d4 a5 e4 f5 b4 h5 d5 c3 b6 h4 d6 Kc6 g7 Kb5 d7 h3 e5 c2 b7 h2 g6 a4 e6 a3 e7 a2 e8Q Ka6 Qe6+ Nc6 b8R Ne7 g8N Ra7 g7 Rb7 Qb3 Na7 Be3 c1N Qf1+ Ne2 Nc3 Nb5 Qfb1 Qe8 d8R Be6 Ne4 Bd5 Q1d1 Rh4 Ng3 Nec3 Nf6 Qc6 g8N Ng6 Rc1 a1N Nd7 Na4 Rc5 Nc2 Qa3 Nh8 Nb6 Rg4 Na8 Rh4 Kf1 f2 Ke2 f1N Ne7 Nd2 Nc8 Ne4 Kf3 Bf7 Qd4 Nf2+ Rdd5 Nh3 Qg7 Rh6 Qg4 Re6 Bd2 Re4 Re5 Qd7 N1e2 Qd5 Re1 Qc6 Ng1 Bd5 Nh1 Bf7 Kg2 f3+ Kg3 f2 Bg5 f1B Kf3 f4 Re6 Nc3 Ree5 B1c4 b5+ Ka5 b6+ Ka6 Re6 Nb5 Re2 Nb4 Re3 Ra7 b7 Ba2 Rce5 Bd5 Rc3 Na2 Qf8 Nb4 Kg2 f3+ Kg3 f2 Rc5 f1N+ Kf3 Bc4 Ncb6 Ne3 Rd8 Ng2 b8N+ Kb7 N8d7 Ka6 Nc8 Ba2 Rc3 Bd5 Nc5+ Ka5 Rc4 Ngf4 Nb3+ Ka6 Na1 Rb7 Rc5 Re1+
Q6B/p2nRQB1/r1RKnR1r/p2b4/1r1BBqqk/5Rn1/1R3N1q/1q6 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 f3 g3 b6 a5 bxa5 Nc3 h5 Ne4 f5 Nf2 f4 Ng4 hxg4 Qc2 f2+ Kd1 f3 Qa4+ Qd7 Kc2 Bd6 Qb3 Bf4 gxf4 Qe7 Kb1 Kf8 Qd1 Ke8 Kc2 Qd8 Kd3 Ke7 Kc4 Kf6 Kc5 g5 h4 c6 b4 g3 d4 g2 e4 g4 b5 g3 e5+ Kg6 b6 Kh5 b7 Bg4 d6 Qe8 d5 Bd7 e6 Ne7 f5 Rf8 f6 Qg6 f7 Qg5 Nh3 g1R Bg2 f1N Qb3 f2 Bb2 Rg8 f8B Qe3+ Bd4 Ng6 e7 Qg5 e8R Qg4 Rc1 Rh8 Re7 Be6 d7 Rh6 d8Q Nf4 d6 Bd5 d7 Ne6+ Kd6 c5 Be4 g2 Bfg7 c4 Qh8 c3 d8R c2 Rf8 Ng3 Rf3 f1Q Nf2 Nd7 b8R Qd1 Rb4 Re1 Rf1 g1Q Qc4 Rd8 Rb2 Rb8 Qa2 Rb4 Qa8 Qh2 Qc4 Qd2 Qb3 Qdg5 Qa2 Q5f5 Qc4 Kg6 h5+ Kg5 Qa2 Kh4 Qb3 Rg6 h6 Qf7 h7 Rh6 h8B Qfg6 Rd1 c1Q Rdd3 Qb1 Rc3 Q6g5 Rc6 Rc1 Rf6 Rc5 Qf3 Rcb5 Qf5 Rb6 Qg6 Ra6 Qf7 Nb8 Nh1 Nd7 R1f3 Qe3 Nf2 Qef4+
1QRRr1R1/1r1Np3/1bN2pb1/2Rn2N1/2K4n/2bnR2Q/3n1Nr1/1k2rB2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 f4 fxe4 f5 b5 axb5 Kf7 f6 Ke8 g4 Bb7 h4 Na6 g5 Qb6 f7+ Kd8 h5 Qf6 Bf4 Qg6 hxg6 Bc8 Be5 Nb8 Bf6 gxf6 Ke2 Kc7 b4 Kd6 c4 Ke5 b6 a5 g7 d5 b5 h5 c5 e3 Kd3 e2 g6 e1B c6 a4 c7 h4 b7 a3 b6 h3 Nc3 h2 Qb1 a2 Be2 Nh6 g8R Nd7 b8Q Nf5 g7 Nh4 b7 Ra7 Qc1 Nc5+ Kc2 d3+ Kb2 Kd4 Nh3 d2 Nd1 Nd3+ Kb3 Bf5 c8R Bg6 Nc3 d1N Qc7 Ne3 b8N Rb7+ Nb5+ Ke4 Q1c3 d4 Qg3 Nd5 Qb4 Bc3 Rae1 a1N+ Kc4 Nb3 Rhg1 h1R Nc7 Rh2 Ne6 Rf2 Nc6 Rg2 Qg4+ Ke3 Neg5 Kd2 Nf2 Kc2 Bf1 Kb2 Re3 Kc1 Qb6 Kb1 Kb5 Nd2 Qh3 Rh7 Rh8 Rh5 g8R Bh6 Nh7 Bf4 f8N Bc7 Ng5 Rh7 Rd8 Rf7 Nd7 Rf8 Rh5 Re8 Rgh8 N3b4 Kc5 d3 Qa7 Ba5 Qb8 Bb6+ Kb5 Ndf3 Kc4 d2 Rf8 d1R Rg8 Nd3 Rc8 Rh2 Rg4 Re1 Rd4 Nc7 Rd5 Rg2 Rc5 Nf5 Rh4 Nd5 Rd4 N5h4 Nde5 Nc7 Rdd8 Nd5 Nd7 Nd2+
qB1BnN1Q/1b1rNpB1/r1p2NBb/3r2N1/n5Bk/2K2Qpb/7q/5R2 w - - 0 1 legal: proof: g4 d5 c4 g6 cxd5 g5 h4 b6 b4 b5 a4 gxh4 axb5 e5 f4 exf4 Ra3 Qd6 Rb3 Qd8 Rg3 fxg3 e4 Ke7 d4 Kf6 Kd2 Kg5 b6 h5 b7 a5 e5 a4 b5 a3 b6 c6 e6 a2 e7 a1R e8B h3 d6 h2 d7 h4 d5 h3 d6 R1a7 Bb2 Nf6 Nf3+ Kf4 g5 Kg4 g6 Rg8 g7 Qc7 d8Q Qd7 Nc3 Na6 b8B Nh7 b7 Rh8 g8N Nf6 Ng5+ Kh4 Qf3 Rh5 Nce4 Nc5 Kc3 Bh6 Ne7 Qg4 Rg1 h1B d7 h2 Bd3 Bg2 Rf1 h1Q Bc2 Bh3 Ba1 Ng8 Nf6 Qh2 Bg6 Qe4 Qb6 Ra6 d8B R8a7 Qb2 Qa4 Bd7 Qa2 Bg4 Qa4 Nfh7 Nf6 Nf8 Qa2 Be5 Ne8 b8N Rc7 Nbd7 Bb7 Nf6 Rd7 Bb8 Qa4 Qb4 Qaa2 Qd4 Qa4 Nfd5 Qaa2 Qh8 Qa4 Nf6 Qaa2 Nge4 Rhd5 Ng5 Na4+ Kb4 Ra7 Nh5 Nb6 Bg7 Ra8 Nf6 Qa7 Be5 Na4 Kb3 Qb8 Bec7 Raa5 Kc4 Qa8 Bb8 Ra6 Kb4 Nb6 Kc3 Na4+
Qb5N/2Nk2nQ/2N2R2/1Bp1qN1q/b5b1/2n1r1R1/q1p2Qp1/2N1bQK1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Bh3 f4 Bg2 Qd5 Bf1 Qd8 b3 a5 Ba3 h6 Be7 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 c5 h4 g6 e4 g4 d4 a4 b6 a3 e5 a2 e6 c3 b7 c2 d5 g5 d6 Nd7 b8Q Ndf6 b4 Rh5 b5 Qc7 b6 Rh8 b7 Nh5 e7 Ng7 h5 Nf6 h6 Qa5 h7 Nd5 f6 Nc3 f7+ Kd7 Ne2 g3+ Kg1 g4 e8N g2 Ng3 Qa3 Qa7 f2+ Kh2 f3 Nd2 Be7 f8Q Bh4 Nb3 Qa5 Bc4 f1B Nf5 Be1 Nc7 f2 b8Q Be2 Qbb7 f1Q Rg1 Qf3 Qaa8 Rg8 Ba6 Bb5 h8N Ba4 Nc1 Qd5 Rb1 a1Q Rb6 Qb2 Qf6 Re8 Qdd4 Qa1 Qf2 Re3 Rc6 Qaa2 Bb5 Qb4 Qf1 Qbe4 Qd4 Qee5+ Qdf4 Kd8 d7 Qf7 Rf6 Qh5+ Nh4 Ke7 d8N Bf5 Nc6+ Kd7 Qbb8 Be6 Qg8 Bf5 Qh7 Be6 Rh1 g1B+ Kg2 g3 Q4f2 Bg4 Rh3 Bh2 Nf5 Bg1 Qf4 Bgf2 Kh1 g2+ Kh2 Bg3+ Kg1 Qe7 Q4f2 Bd6 Rg3 Qe5 Na6 Bb8 Nc7 Qe4 Qc4 Qd4 Qcf1 Qe5
5bQ1/p2kpR1Q/n2b1nN1/1b2r3/4p1Nr/R2QN1q1/1NK1BQ1p/2r1Q3 w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 f5 e4 fxe4 b3 Be6 Bb2 Bc8 Be5 b6 a4 b5 h4 gxh4 Bg3 hxg3 axb5 Bf5 Qf3 Bd7 Qd1 Bc8 f4 h5 d4 c5 Kd2 c4 d6 g2 d7+ Kf7 g5 Ke6 f5+ Kd6 d5 c3+ Kc2 h4 g6 h3 b4 h2 b6 Rh3 f6 Ba6 f7 Re3 g7 Re2+ Nd2 Qe8 d8N Re3 b7 Kd7 b5 Rd3 b6 Rh3 d6 Re3 Be2 Rh3 Qe1 Bc4 Ne6 Rg3 Nc7 Ba6 Ngf3 g1R Ne5+ Kd8 d7 R1g2 Ng4 Rf2 Ra3 Rf4 Rf1 Rf6 Nd5 Rff3 Nc4 Rf4 Nb2 Nf6 g8Q Bb5 Qh7 Na6 Nde3 Rc8 b8Q Rh3 b7 Rf5 Qbg3 Rh4 b8Q Re5 Qd6 Rc4 Qdd2 Kc7 Qd5 Qb8 Qd3 Kc6 d8Q Qd6 Qa8+ Kd7 Qgf2 Rc8 Kb3 c2 Qad5 c1B Qe6+ Kc6 Kc2 Bd2 Qeb3 Bb4 Qa2 Qc7 Qab3 Bd6 Qa2 Bg7 f8N Qb8 Ng6 Bf8 Qag8 Kd7+ Kd1 Rc1+ Kd2 Ra1 Kc2 Rc1+ Kb3 Rf5 Na4 Nd5 Qf4 Bb4 Nb2 Qc7 Qf3 Qg3 Qg2 Rfh5 Rf7 Re5 Qgf1 Bd6 Qff2 Rd1 Kc2 Nf6 Qg2 Ra1 Qgf2 Rc1+
n2B3Q/QB1bb2N/2N2npR/1B3BK1/2pqp2r/3Nb3/bB1pb3/2Nk4 w - - 0 1 legal: proof: d4 a5 g4 b5 c4 h5 b4 axb4 Bf4 hxg4 Bc1 e5 dxe5 b3 e4 f5 a4 b4 e6 Bb7 e5 Ra5 Ra2 Rd5 Re2 Bc8 Re4 Rb5 cxb5 fxe4 Kd2 Ke7 Ke3 d5 Kf4 c5 h4 g3 a5 d4 b6 d3 b7 g6 h5 b2 a6 b3 h6 c4 h7 g2 a7 d2 a8B Qd7 Na3 b1B Kg5 b2 f4 Qd8 f5 Na6 b8N Qd4 f6+ Kd8 f7 Kc7 e7 Kb6 e8N Kc5 e6 Kb4 e7 Kc3 Rh6 Bc2 Ne2+ Kd3 Bb7 g1B Nf6 b1B e8B Nc7 Bb2 Bf2 Bb5 Bg3 Nc1+ Ke3 Nc6 Na8 Bh3 Ba4 Qg1+ Bf2 Bf5 Be7 f8B Bd7 Nc2+ Kf3 N2b4 Ba2 Bg7 Bd1 Nbd3 Be2 Bf8 Bd8 Bd6 Be7 Bc7 Ke3 Bd8 Kf3 Qh2 Bg1 Qb8 Be3+ Nf4 Kf2 Qa7 Ke1 Rh4 Nh6 Rh2 Ng4 Rh6 Re8 h8Q Kd1 Qg7 Rh8 Qf8 Ba3 Nh7 Nf6 Qg7 Bf2 Nfd3 Be7 Nf8 Rh7 Qh8 Bg1 Rh2 Rh4 Nh7 Rf4 Rh5 Be3 Rh6 Rh4+
N1q1bnB1/2ppp3/p2BB3/1NrrBn2/NN2b2k/Q3Np2/5K2/3Q1qR1 w - - 0 1 illegal: No proof kernel
1q2KR2/Qn1p2p1/7k/3nN2r/2p2nQr/1B3q1p/Q1p1N2N/1QN1QR1b w - - 0 1 illegal: No proof kernel
B1R2QrK/n2n3Q/8/1r1bb1R1/Q2n4/3BNrRB/r1p1Bk1p/2Q2n2 w - - 0 1 legal: proof: g4 a5 a4 b5 c4 e5 b4 d5 cxd5 e4 h4 Qg5 hxg5 Bc5 f3 exf3 g6 Be6 g5 Bf8 Bb2 Bc8 Bf6 gxf6 Nc3 f5 Na2 f4 axb5 Bg7 b6 Bh6 b5 Bf8 Nb4 axb4 Kf2 Kd7 d4 Kd6 e4 c5 b7 h5 b6 f5 e5+ Kd7 g7 h4 d6 Ke6 d7 Kd5 d8R+ Ke4 d5 h3 g6 c4 e6 c3 d6 b3 e7 h2 e8B b2 d7 b1R Qa4+ Bb4 Ra3 c2 Bh3 Ra6 Ne2 Nh6 g8B Rb2 g7 Nc6 b8Q Rh7 b7 Rb3 Nd4 Bc3 Bh5 Na7 Rg1 Nf7 Rg5 Rb5 Qc7 Ne5 b8Q Bb7 Rc8 Bd5 d8Q Nd7 Qf8 Kd3 Be6 Kd2 g8B Rg7 Bh7 Raa5 Ne2 Be5 Nc3 Ra6 Nd1 Raa5 Kf1 f2 Rag3 Ra6 Bf3 Kd3 Kg2 f1N Be4+ Ke2 Ne3 Nd2 Bg4+ f3+ Kh3 f4 Kh4 Raa5 Kh5 Kf2 Kh6 Nb3 Bh3 Nd4 Beg4 Bf7 Ba8 Bd5 Qac4 Ra2 Qa4 Ke1 Qbb6 f2 Be2 f1N Bhd3 f3 Qbd6 f2 Qda3 Nd2 Qb7 f1R Qb2 Rf3 Qc1+ Kf2 Qc7 Rg8 Kh7 Rg7+ Kh8 Nf1 Qb7 Bg8 Qe4 Bd5 Qh7 Rg8#
2K2N1b/4pb1Q/B1Q2B1b/3n1Bpp/2N1q3/1B3k1b/n1pr1N2/N1R1Q3 w - - 0 1 legal: proof: c4 b5 cxb5 d5 e4 Qd6 exd5 Qh6 f4 Bg4 f5 Be2 g4 Qd6 f6 gxf6 a4 Qd7 a5 Qd8 a6 Nxa6 g5 Nb8 b4 a5 h4 Qc8 g6 Nh6 g7 Qd8 h5 Ra6 Ra3 Rb6 Rg3 Ng8 Rg5 fxg5 Nc3 Bg4 Nb1 Rg6 hxg6 Be2 Kf2 Kd7 Kg3 Kd6 d4 f5 b6 c5 b5 c4 b7 h6 b6 c3 Bb2 c2 Nd2 a4 Nc4+ Kd7 d6 Ke6 d7 Kd5 Nh3 Ke4 d5 a3 d6 a2 Qe1 a1B Bf6 Bc3 Nf2+ Kd5 Bh3 Na6 b8Q Bf1 b7 f4+ Kg4 f3 Kf5 h5 Qc7 Nc5 b8N Ba1 Nc6 Qb8 d8N Qa8 d7 Be2 Ne6 Na4 Ncd4 Bc3 Nb3 Qb8 Na1 Qa8 Qc8 Be5 Qa6 Nc3 d8Q+ Bd6 Qe8 Na2 Qf7 Be5 Nb2 Qc8 Ne4 f2 Qc3 f1B Nf2 Bf4 Bd4 Bg2 Rc1 Bh2 Qe1 Nf6 g8B Bh6 Qh7 Bf8 g7 Qa8 Bf7 Qc6 g8B Be5 Be8 Qb7 Bb5 Bh6 Qa4 Bgf1 Ba6 Bc4 Bf7 Rd8 Nf8+ Kd6 Bg4 Bh3 Bc3 Rd7 Bd5 Kc5 Ke6 Bb3 Bdc4 Rd2 Bf5 Qe4 Qd7 Ng4 Bd5 Ne3 Qe8 Bf6+ Kd7 Bh8 Kc8 Bc4 Bf6 Bb3 Bc6 Bf7 Ba4 Nd5 Bb3 Kd6 Nc4+ Kc5 Ne5 Kd4 Qc6 Qf3 Qg1 Ke3 Nc4+ Kf4 Qh1 Qe4 Qe1 Kf3
1bqr1R2/Q1b2n2/B1nkNq2/1Q1b4/2B1B1rq/KN1r1QN1/n3Qq2/4N3 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b4 h6 Bb2 Qe7 Ra3 Qd8 Bf6 Rh7 Rf3 gxf3 g4 Be7 g5 Rh8 g6 Bf8 Bg5 hxg5 h4 Kd7 e4 c5 d4 a5 Kd2 f5 Kc2 c4 Kb2 f2 e5 a4 g7 f3 d6 g4 b6 g3 h5 c3+ Ka3 f4 b7 g2 e6+ Kc6 e7 c2 e8B+ Nd7 b8Q c1R h6 Bb7 h7 Rc4 Qa7 Qc8 Nc3 Nh6 g8B Nf7 Qe2 Bg7 Rh3 Be5 Ne4 Kd5 b5 Nb8 b6 Nc6 d7 Bc7 Ng3 Kd6 d8N Rb8 Ka2 a3 d5 Rd4 Kb3 a2 Ne6 a1B Nc5 Rd3+ Ka4 Ba8 Nb3 Be5 Ka3 Rb7 Rh5 Bb8 Rf5 Bc7 Nh3 g1N Ng5 Bb8 Bg2 f1Q Bd7 f2 Nf3 Qd1 Ne1 f1Q Be4 f3 Be6 Rc7 b7 f2 Rf3 Re7 Bh3 Bc7 b8Q Qc2 Be6 Qh3 Qb5 Qh4 Bh3 Re6 Bf1 Rg6 Rf5 Rg4 Rf6+ Kd7 d6 Qd2 Qf3 Ne2 Rf5 Ke6 d7 Nc3 d8N+ Kd6 Ne6 Na2 Be2 f1Q Rf6 Ng5 Rf8 Qc3 Bf7 Qf2 Bf1 Rg8 h8Q Bf4 Qh5 Qf6 Ng7 Bb8 Bc4 Nf7 Be2 Ncb4 Ne6 Bd5 Bf1 Nc6 Be2 Bd2 Bf1 Ba5 Qe2 Rh8 Qf5 Bd8 Qff3 Bdc7 Qba4 Rh7 Bb5 Nfd8 Qd1 Rd7 Ba6 Nf7 Qb5 Rd2 Bc4 Rd3 Qde2 Rd8
r6n/n2k1r2/q1b1RQ2/NbR5/2n1n1Q1/3q1BrQ/1R1r3B/1RQ1rB1K w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra5 h5 Nd5 f4 Ra1 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 h4 g5 e4 a5 b4 d5 c4 d3 Ke3 a4 b6 a3 f5 d2 b5 g3 e5 a2 b7 g4 h5 g2 e6 g3 b6 Qd7 f6 Qd8 h6 Qd6 c5 Ra4 e7 Rd4 f7+ Kd7 e8R Ne7 f8Q Nbc6 b8Q Ng6 h7 Bb7 Qf6 Na7 Re6 Bc6 Ne2 g1R b7 g2 Rb1 a1Q Rh5 Qa6 Qg8 Rf4 Qc2 d1R b8R Rd2 R8b2 Rh1 Qd1 g1R Nd4 Rg3 Nb3 Rf5 Na5 Rhg1 Qg5 Rf7 Qf6 Rh1 Qgg7 Ra8 h8Q Rhg1 Qhh7 Nh8 Qg4 Rh1 Rhe5 d4+ Kf4 d3 Qhh3 Re2 Be3 d2 Qc1 Qdd3 Rh5 d1B Bd4 Bda4 Be5 Rd2 Bc7 Bcb5 c6+ Kc8 Rc5 Rhg1 Be2 f1N Bb8 f2 c7 Ne3 Bf1 R3g2 Kf3 Kd7 Qe4 Rg8 Qeg4 Rh1 Kg3 Nc4+ Kg2 Rg1+ Kh2 Rg3 Kh1 Re8 Bg2 f1N Bf3 Ree7 c8B+ Kd8 Bcb7 Kd7 Bbe4 Bc6 Bf5 Bab5 Be5 Rf2 B5e4 Nfd2 Be2 Ree8 B4f3 Ne4 Bf1 Re2 Bb8 Re1 Bf4 Rg8 Bc7 Rg2 Bh2 Rd2 Qgf4 Rgg2 Qfg4 Rg3
5Bq1/B1KNb2k/qbN1q1q1/2Q2B2/rR1b3B/N3nQ2/q2Nr2n/b4Q2 w - - 0 1 illegal: No possible last move, all moves rejected
3q3N/2b2B1k/N2Q3r/1RNQnrb1/Q3K1B1/bqB3Q1/1r6/1Nrq1b1n w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 g5 Ke2 c5 Kd3 f5 h4 Kf7 e5 Kg7 d6 a5 d7 f4 b6 c4+ Ke4 a4 d4 g4 b5 c3 h5 f3 b7 f2 e6 a3 d5 a2 b6 a1R e7 c2 e8B Nc6 b8N Nh6 b7 Nf5 h6+ Kh7 d6 Ne5 Nf3 g1B Bc4 f1R Bg5 c1B Qa4 g2 Bh5 g3 Nfd2 Bb6 Nb3 g1Q Bg4 g2 Bd2 Bc7 Bc3 Qb6 Nc5 g1Q Rh5 Bg5 Bf7 Qb3 Nba6 Rf3 b8Q Qgd1 Qbb5 Rf2 Qd3 Rb8 Qg3 Rb5 Bf3 Rb2 Bg4 Qe8 d8Q Bfe7 Nd2 Rc1 d7 Bf8 Qf6 Qd8 Nb1 Be7 Qd6 Ra5 Nb8 Ba6 Qd5 Bf1 Nba6 Qdb8 d8Q Bed6 Nb7 Ba3 Q8d6 Qd8 Nbc5 Rg8 Qg1 Rg6 Qg2 Kh8 h7 Rh6 Qf2 Kg7 h8N Kh7 Qf4 Ng3+ Ke3 Nh1 Ke4 Rf2 Qg3 Rf5 Rh2 Rb5 Rb2 Qa2 Rb3 Rb7 Rb5 Rb6 Ra5 Rb2 Rb5 Qab3
2kBBN1N/bq6/1q2RbN1/2b2BN1/4r1pb/n1QK4/2Q2b1r/q3B1nQ w - - 0 1 legal: proof: f4 c5 e4 f5 d4 cxd4 g4 fxe4 a4 h5 b4 b5 axb5 Nc6 f5 Bb7 f6 Nb8 Ra3 Bd5 Rg3 Be6 Rg2 Bf5 gxf5 Nc6 Rg3 Nb8 Rg4 hxg4 Ke2 e5 h4 g5 c4 a5 c5 d5 f7+ Kd7 f6 d3+ Ke3 a4 h5 d4+ Kd2 e3+ Ke1 e4 c6+ Kc8 c7 e2 Kd2 g3 b6 g4 h6 g2 b5 a3 h7 a2 Rh2 a1B Nh3 g1B Na3 Nc6 Nc4 Na7 Ng5 Nh6 Qc2 Nf5 Rh6 Nh4 Ne5 Bc5 f8N Bf2 f7 e1B+ Kd1 e3 Bd2 Qd5 Re6 Nf3 Neg6 Qb7 Bg2 Ng1 Bc6 Rb8 Be8 e2+ Kc1 Be3 Kb1 Bg3 Be1 d2 Qc3 Bh4 Kc2 Ra8 Kd3 d1Q+ Kc4 Rg8 h8N d3 Qc2 d2 Kd3 Bf6 Qc3 Qh1 Qc2 Qa1 Qc3 Kb7 c8B+ Kb8 b7 d1Q+ Kc4 Qdc1 Kd3 Qcb1+ Qc2 Kc7 b8Q+ Kd8 b6 Qb7 Qg3 Nb5 Qg2 Na3 Qh1 Ra4 Bcd7 Re4 Bc8 Qc7 b7 Qbb6 b8Q Qcb7 Qe5 Rg7 Qec3 Rh7 Nd7 Bhf2 f8B Rh2 Be7+ Kc7 Ndf8 Kb8 Bd2 e1B Bd8 Bh4 Bcd7 B1f2 Be1 Bed4 Re5 Bde3 Bf5 Bed4 Re6 Kc8 Q3d2 Bde5 Qcc3 Bb8 Qdc2 Ba7
4q2K/6b1/N3nbrR/r1nrk3/RpR2NQN/3Q1B1Q/rN1n4/q1Q3r1 w - - 0 1 illegal: No possible last move, all moves rejected
1n3bR1/5B2/1QNQn3/2B3r1/bpqNb1QK/N1n2qr1/k2n3B/n4Q1N w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 h5 e4 g5 a4 Bh6 g4 Bf8 Ra3 f6 Rg3 f5 exf5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kf2 Kd7 h4 Kd6 d4 c5 g6 b5 f6 e5 f7 e4 a5 f3 Kg3 c4 a6 b3 h5 f2 a7 b2 g7 b4 h6 c3 h7 c2 Bc4 e3 Nh3 e2 Rg1 e1N Be3 c1Q Na3 Ne7 g8Q b1B Kh4 f1N Nf2 g3 Nh1 g2 Qgg4 Rg8 h8B Nc2 Bf6 Nd2 Qf1 Bf5 Bf2 Na1 Be5+ Kd7 d6 Kc6 d7 Bbe4 Bd6 Rg5 Bh2 Nd5 Be3 Qb6 d8Q Bd7 Bf2 Nf4 d5+ Kd6 Bc5+ Ke5 d6 Ba4 d7 Qf6 Be6 Qc4 Qb6 Qf5 d8N Qf6 Bd7 Kd5 Be8 Ne6 Nc6 Qf3 Qh3 Na6 Qg4 Rc8 a8Q Nb8 Qab7 Rc7 Qc8 Ra7 Qf4 Ra5 Qca6 Rg3 Qg4 Qcd3 Nb5 Kc4 Na3+ Kb3 Na7 Kb2 Nc6 Qb3 Qad3 Qc4 Qd6 Bg7 f8N Ka2 Bf7 Rb5 Ng6 Bf8 Nge7 Ra5 Nf5 Rb5 Qc1 Ra5 Nfd4 Rb5 Rf1 g1N Rf2 Ne2 Qf1 Nc3 Re2 Bg6 Re5 Be4 Rg5 Ra5 Rg8 Ra7 Bh5 Rg7 Bf7 Rg5
1RQ2R1n/2p1q2q/2Q1Q1q1/2N1B1b1/bRK2QqR/8/1r2k1Nr/rN3qn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 b4 Kd7 e4 Kd6 Ke2 Ke5 Kd3 Kf4 h4 a5 e5 f5 b6 g5 d6 a4 h5 a3 b7 g4 e6 a2 b5 Rh6 d7 Ra6 e7 Ra5 e8Q Qe7 d8Q Nd7 b6 Rb5 b8Q Rb2 Ne2+ Kf3 b7 g1Q Qa4 f4 Kc4 g2 d4 g3 d5 Qh2 d6 g1Q Qba8 g2 b8R+ Bb7 Qb4 Bc6 Qc8 Bg7 Qaa6 Ba4 Qc6+ Kf2 Bd2 f3 Bc3 Bf6 Be5 Bg5 Nf4 Qd1 Qg6 g1Q Ng2 Ke2 Qe6 Rh8 h6 f2 h7 f1Q Qbc5 Qh3 Qd4 Nh6 Qf4 Nf7 Rb4 Qf5 Rh4 Qh1 Rb8 Qg6 Rb4 Qf3 Rb8 Qdf1 Rb4 Qg4 Rb8 Nf6 d7 Nd5 d8N Nc3 Nb7 Qhh3 Na3 Qhh1 Rb1 a1R Nc5 Ne4 Nd3 Nf2 Nc5 Nh3 Rb4 Ng1 Rb8 Rd8 h8R Rdd2 Rf8 Nh8 Rb4 Rd3 Rb8 Rh3 Rb4 Rh2 Rb8 Rd2 R1b4 Rb2 Nb1 Qgh7 Ne1 Qhf3 Ng2 Qfe4+ Kc3 Qef5 Kc4 Qfg6
2k1B1K1/pr1qn3/4B3/N3n1B1/rbbR3Q/b1qn1Q2/1bQq1NQN/3B4 w - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 b4 g5 h4 gxh4 Ra3 d4 Re3 d3 f4 exf4 cxd3 fxe3 d4 Qg5 d5 Qd8 Ke2 Kd7 Kf3 h5 Kf4 c5 Kf5 h3 d4 c4 g4 f6 Kg6 h4 Kf7 e2 b6 e1B b7 f5 d6 h2 d5 f4 e5 f3 g5 c3 b5 f2 g6 h3 g7 c2 b6 Bb4 Qf3 Qg5 e6+ Kd8 e7+ Kd7 e8B+ Kd8 d7 Qg4 Nd2 Qd4 Ne4 Bfc5 Be2 f1Q Nf2 Qg4 Bg5+ Ne7 g8B c1B Bd1 Nc6 b8N Qe1 b7 Rh4 Kf8 Qe2 Be6 Ne5 Nc6+ Kc7 Kg7 Bb2 Na5 Qd2 b8Q+ Kd8 Qd6 Rb8 Qc6 Ba6 Qa4 Bb5 Qc2 Rb7 Kf8 Kc7 d6+ Kb8 Qg2 Bc4 Nf3 Qc3 Rg1 h1Q Nh2 Qe2 Re1 Qed2 Re4 Qf1 Qf3 Qfd3 Rd4 B4a3 Kg7 Bcb4 d8Q+ Nc8+ Qd7 Ne7 Qdc6 Rf4 Nhg4 h2 d7 h1N Nh2 Qf5 Qg2 Qfd3 Qcf3 Kc7 Nfg4 Nf2 Kh8 Qf5 Kg7 Nfd3 Nf2 Qe4 Kh8 Qc6 Kg7 Kb8 d8Q+ Qc8 Qb6 Qd7 Qd8+ Nc8+ Kh8 Rg4 Qdf6 Ne7 Qh6 Kc7 Qh4 Kc8 Qb1 Bd6 Rd5 Bb5 Qc2 Ra4 Rd4 Bc4 Kg7 Bdb4 Kh7 N7g6+ Kg8 Ne7+
1q5R/qn1Q3r/3np1RB/1R1B3K/2BN1Qr1/3QRbqk/2q1Q3/1qq4b w - - 0 1 legal: proof: d4 b5 g4 c5 f4 cxd4 a4 h5 axb5 e6 Nd2 f5 Ne4 Bd6 e3 fxe4 f5 Bf4 exf4 hxg4 Ke2 Kf7 c4 Kf6 h4 d5 b4 g5 b6 a5 b7 e3 b5 g3 Kf3 a4 Kg4 d3 h5 e2 b6 e1Q h6 g2 c5 d4 h7 d2 c6 a3 c7 a2 Ne2 g1Q+ Kh5 d3 Rb1 a1Q Rh3 g4 Rb5 g3 Nd4 g2 Re3 Ne7 Qe2 Nbc6 b8R d1B b7 Ra4 Ra8 d2 b8Q Bb7 c8B Qgf2 Qc7 g1Q Qd7 Qb1 Rb8 Ba8 Bb7 Na5 Bd5 Qgg3 Rc8 Qc7 Rg8 Qb8 Rg4 Nb7 Rg6+ Kf7 f6 Qfg1 Qc6 Nc8 f5 Ncd6 Qc2 Qef2 Qd3 Qfg2 Bc4 Qc6 Bg2 Qc5 Bgd5 Qca7 Qf3 Be2 Qg4 d1Q Qf3 Rd8 h8R Qdc2 Qg4 Bf3 Bd2 Bh1 Qge2 Rg8 Bc1 Ra6 Bd2 Rc6 Bc1 Rc7 Bd2 Ke8 f7+ Ke7 Bc1 Rd7 Bd2 Qgc1 f6+ Kd8 f8Q+ Kc7 Rgh6 Rh7 f7 Rg4 Qe8 Bf3 f8Q Bh1 Qeg6 Kd7 Qff3 Ke7 Qf4 Q1d1 Be4 Na5 Qff2 Qdc1 Rf3 Rf4 Qg8 Bc6 Qc8 Nab7 Qff1 Rg4 Bf4 Rg6 Re3 Kf6 Qd7 Bd5 Bg5+ Ke5 Be7 Rgg7 Bf8 Rg8 Bf3+ Kf4 Bg2+ Qf2 Bf3 Kg3 Be4+ Kh2 Bg2 Qg3 Qf4 Rg4 Bf3+ Kh3 Be4 Rf7 Rg6 Rh7+ Bh6 Qc8 Bf5 Bdg2 Be4 Bf3 Bed5 Qcb8
1b1b2nR/K1B1QBp1/1n1B3q/1Q5r/R1N5/n1q2q2/1Q1BbQ2/3k1qbR w - - 0 1 illegal: No possible last move
7R/p1R1rr1N/2b1p2Q/k3K1Q1/2Qn4/1q2qN1R/r2nNb2/NQ1B1b1n w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 g4 h6 f4 Be6 b3 Bc8 Bb2 Nc6 Bf6 gxf4 g5 Nb8 g6 Bg4 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 d4 c5 h4 Kc7 g7 Kb6 d6 e3 Kd3 c4+ Ke4 f3 d7 c3 h5 e2 d5 e1N d6 f2 b4 c2 h6 c1Q h7 g4 Qd5 e6 Na3 g3 Ne2 g2 Nc2 g1R Ke5 Qd2 Rh3 Qc1 Qc4 Qa3 Rc1 Qd3 Na1 Qh4 d8R Qa3 d7 Ne7 g8N Rg7 Nf6 Bb7 Rc2 Rhg8 h8Q Rf7 Qh6 Rg2 Nh7 Nf5 Rcc3 Be7 Rh8 Bc5 d8N Qg5 Nc6 Qb2 Ncd4 Bc6 Nf3 Qb3 Rc2 Rh2 Bg2 f1B Rc1 Kb7 b6 Bf2 b5 Qd2 Qg5 Ng3 Rc2 Nh1 Rc3 Na6 Rc2 Re8 Rc1 Kb8 b7 Kc7 Rc2 Kb6 b8Q+ Ka5 b6 Qc1 b7 Ree7 Qf8 Nc5 b8Q Ne4 Qfh6 Nd2 Rc3 Nc2 Qb7 Qa2 Qb1 Qa4 Nh4 Qb4 Bf3 Nd4 Bh5 Qba3 Nf3 Qb3 Nfg1 Bf3 Qc8 Ne4 Nf4 Qe3 Bg4 B3g2 Bd1 Bh4 Qc6 Bf3 Rc1 Ra2 Nfe2 Bf2 Qa6+ Kb4 Rc7 B3g2 Qad3 Ka5 Qc4 Nd2+ Qe4 Qec3 Qb1 Bc6 Nf3 Qe3+
3Q2B1/1QKbqrRp/Q2b4/2NBbp1b/1r6/1bB5/2knRnQR/1n2B3 w - - 0 1 illegal: No possible last move
n2nRqRQ/BKR1n3/1Q2B2q/2R2B1Q/1Q6/r1pp2b1/4n1rn/1N4kq w - - 0 1 legal: proof: d4 b5 h4 d5 c4 dxc4 a4 g5 axb5 gxh4 Nh3 e6 Ng1 e5 e4 Bc5 d5 Nd7 Nd2 Bd4 Ndf3 Bc5 Nd4 exd4 f3 Nb8 e5 Bf5 Bh6 Bc2 Bc1 Be4 fxe4 Bf8 Kd2 Ke7 g4 a5 b4 c5 b6 h5 e6 Kf6 b7 Kg5 d6 Kf4 g5 Kg3 g6 Kf2 e5 f5 e7 h3 e8Q h4 b5 h2 g7 d3 Kc3 f4 d7 h3 e6 f3 e7 a4 b6 a3 Qa4 a2 Bh6 Na6 b8R Nc7 Rb1 a1N b7 Nb3 Qb4 Na5 Qh5 Nc6 e8R Bd6 Rc1 Nge7 g8B Bg3 Be6 Rg8 Ne2 Ra2 Rg1 h1Q Rc8 h2 b8Q Na8 Bfh3 Ra6 Rc7 Ra3+ Qb3 Qc8 Bhf5 Nd8 Qb4 Rg4 Rc2 Rg5 Rg2+ Kf1 Bg7 f2 Bd4 Qb8 Kb2 Rg7 Nc3 Rg6 Nb1 c3+ Kc1 c4 Ba7 Rg7 Qb6 Rg6 Q3b4 Rg5 Rd2 c2 Kb2 c1N Rc2 Ne2 Rc3 Nb7 d8Q Rg6 Qdd4 Nd8 Rc5 Qf4 Qdh8 Qh6 Rc7 Qf8 Rc5 Bh4 Rg4 Bg3 Rc2 Kg1 Rg5 Rf6 Rg8 f1N Rc3 Qc6 Rc2 h1Q Rc1 Rb3+ Ka2 Rb2+ Ka3 Rg6 Rc3 Nh2 Rc2 Qd6 Ka4 Rb3 Ka5 Qf4 Ka6 Q4h6 Ra2 c3 Rc7+ Bf2 Ra5 Rg2 Rac5 Bg3 Rg7 Nf7 Rg8 Ra3+ Kb7 Nd8+
1B1k4/2qnbr1B/QR6/2NR1QQ1/BBR1r3/1p2qr2/rQ2q2p/3Kn2r w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 Nc3 Be6 Ne4 f3 Nf6+ gxf6 g5 Bg4 h3 f5 hxg4 f4 e4 f5 d4 b5 a4 h5 g6 c5 e5 c4 d6 h4 e6 c3 d7+ Ke7 g5 b3 a5 c2 a6 h3 a7 b4 g7 h2 d5 b2 g6 b1R d6+ Kf6 e7 b3 e8Q Qc7 d8R Qb7 d7 Qc7 Ra6+ Bd6 Qe4 Rh4 Ba3 c1Q Nh3 Nh6 g8B Ng4 g7 Ne5 Bh7 Ke7 g8Q f2+ Ke2 Q1c5 Qc1 f3+ Kd1 f4 Qf5 Qe3 Bb4 Nd3 Ng5 Ne1 Bb5 f1Q Ne6 f2 Rb6 f3 Nc5 Re4 Ba4 Qb5 Qg2 f1R Qb2 f2 Rc8 Ra1 d8B+ Ke8 Rg1 Be7 Rg5 Nd7 Rh5 Ra2 Rg5 Rb8 a8Q Rh1 Qa6 f1R Qcd2 Rb7 Qdd5 Qe5 Rcc6 Q5c3 Bc7 Rf3 Bb8 Kd8 Rh5 Qe5 Qg5 Qc7 Qdf5 Ra3 Rd6 Ra2 Rd4 Qf1 Rc4 Qg2 Rhh6 Qf1 Rhd6 Qff2 Rd2 Qfe2+ Kc1 Qd6 Nd3 Nf6 Qa8 Bf8 Nc5 Rf7 Qb7 Be7 Qa6 Qg1 Rd5 Nd7 Qbg7 Qgf2 Qb2 Qee3+ Kd1 Qc7 Qff4 Qf1 Qff5 Qfe2+
6B1/q1k1N1nn/2N4K/1RBQqq1b/1B6/NrbQnQ1p/2bQb1p1/5N2 w - - 0 1 legal: proof: d4 f5 b4 c5 g4 cxd4 a4 fxg4 Ra3 b5 axb5 e5 Bg2 e4 Bh3 Qf6 Bf1 Qd8 h4 g5 Ra2 a5 Bf4 g3 Ra3 g4 Rd3 exd3 Bc1 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Kf7 Nf3 Ke7 Ng1 Ke8 Kd2 h5 c4 d5 f4 Kd7 e4 g2 b6 h4 c5 h3 b7 g3 c6+ Kc7 e5 a4 b5 a3 e6 a2 b6+ Kd6 e7 a1N e8Q Qe7 f5 Rh5 f6 Bg4 c7 Nc2 c8N+ Kc5 g6 Na6 b8Q Nc7 b7 Bg7 f7 Be2 f8B Ne6 Qd7 Ne3 Qa8 Nf6 b8N Nh7 Nf3 g1Q Na3 g2 Nc6 Qh2 Qa6 Qe5 Nh2 Rf5 Bb2 Rf3 Bc3 Bf6 Rg1 Ng7 Qg4 Rg3 Qf3 Qf5 Qc1 Qd6 N8e7 Qde5 Rh1 Kd6 Bb4+ Kc7 Qc3 Bd1 Be2 Bb3 Nf1 Bc2 Ke1 d2+ Kf2 d1B Bc4 d3 Qd2 d4 Bg8 Ne6 g7 Be2 Qe1 d2 Qd3 d1Q Qed2 Qa1 Rg1 Rg4 Bc5 Rf4 Kg3 Qa2 Bf7 Qa1 g8Q Ng7 Bb3 Qa2 Qgd5 Qa1 Nh2 Qa2 Rb1 Qa1 Nf1 Qa2 Qd3e4 d3 Bc4 Qaa1 Rb5 Qad4 Bb4 Qa7 Ba2 Qd6 Qec4 Bc3 Qb3 Qde5 Bc5 Ng4 Kh4 Rb4 Qbc4 Rb3 Qce4 Qfe6 Bb4 Ne3 Qef5 Ne8 Kh5 Qd7 Kh6 Ng7 Qc1 d2 Qfd3 d1B Qcd2 Qa6 Nf5 Qf7 Bfc5 Qa7 Nfe7 Qff5 Q5d4 Rb2 Bg8 Rb1 Qdd5 Rb3 Qf4 Bh5 Qff3 Be2
7R/1n1Q3b/3QKR1B/n2BQN1p/bnR2pr1/1B1qb1Bb/3b4/1kn4R w - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 a4 c5 axb5 cxd4 f4 exf4 g5 Ra6 Nc3 Rb6 Nd5 f3 Nf6+ gxf6 h5 f5 Rh2 f4 Rh1 Rg6 hxg6 Be7 Bd2 Bc5 Bc1 Bf8 Kf2 Ke7 b4 Kd6 c4 Ke5 e4 d5 b6 f5 c5 h5 b5 d3 g7 Kd4 c6 Kc3 g6 d2 b7 d4 c7 d3 b6 a4 e5 a3 e6 a2 e7 Nc6 b8B Nh6 g8Q Nf7 e8Q Nd6 b7 Bh6 g7 Nb4 Qgf8 Rg8 Qda4 d1B Bd2+ Kb2 Nh3 Bc2 Be3 d2 Bg2 d1B Rc1 a1B Ng5 Bb1 Qa5 Ba4 Rc4 Bbc2 Bc1+ Kb1 Qd7 Bc3 Qe5 Bd2 Ne4 Bg5 Ng3 Bh6 Kg1 f2+ Kh2 f1N+ Kh3 Bd3 Bd5 f3 Qfe7 f2 Kh4 Ne3 Rf4 Rf8 g8B f1N Bb3 Bc2 Bgd5 Nec4 Rf3 Rg8 Rf4 Bg7 Kg5 Bh6+ Kf6 Rg4 Ke6 Na5 Rf3 Bhe3 Rf2 Ne8 Q7d6 Bd3 Ne2 Ng3 Nd4 Ne2 Rff1 Bc3 Bd2+ Nc1 Rf3 Bg1 Bh6 Bd2 Qf8 Qg5 Qe1 Ng7+ Ke5 Be4 Qde8 Be6 c8R Rg3 Rc4 Qe3 Bd6 Bc8 b8R Qd3 Qee7 Be6 Qd7 Ne8 Qfe7 Rg2 Bc7 Nd6 Rh8 Ndb7 Kf6 Rg7 Bg3 Rg8 Qed6 Rg7 Qe3 Rg5 Qef4 Bge3 Qfe5 Rg7 Rf4 Rg5 Rg4 Rg8 Rg6 f4 Ke7 B6f5 Rf6 Bh3 Kf7 Bh7 Nf5 Rg5 Ke6 Rg4
k1K1Q1NR/n1R5/5r2/pN1r2r1/Qr3bp1/2BnR1Q1/2Q1rRq1/rN4q1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kf2 g5 e4 a5 b4 d5 h4 Kd7 c4 Kc8 c5 Kb7 f6 d3 h5 d4 f7 d2 b6 d3 b5 Qe7 e5 Nc6 e6 Nf6 h6 Nb4 c6+ Kb8 c7+ Kb7 c8N Ng8 h7 Nc2 Ra3 Nb4 Qa4 d1R Ne2 d2 Nec3 Rb8 Bb2 Bh6 f8R Qg7 e7 Re1 e8Q d1R Ne7 Ka8 Rb3 Rd5 b7+ Ka7 Qc8 Re6 Rc1 g3+ Kg1 f2+ Kg2 f1R Kh3 g2 Kg4 f3 b6+ Ka6 Qc5 f2 Nb5 Re2 Re3 Nd3 Bc3 Qg6 Qc7 g1Q+ Qg3 Rfe1 Rf6 f1R Rf2 Qg2 Rc2 Rg1 Rc1 Rf8 b8Q Rf6 Qc7 Rd1 Qcc4 Kb7 Qcb3 Ka8 Qc2 Qg7 Re5 Rc6 Kf5 Rc4 Ke6 Rb4 Re3 Rdf1 Qaa2 g4 Qa1 Bf4 Qaa4 Rg5 Kd7 Qd4+ Kc8 Rh1 Ba1 Rh6 Bc3 Rf6 Nf5 Rg1 Nh6 Qc5+ Kd7 Ne7 Ng8 Nc6 b7+ Kb8 Ne7 Re8 Ng8 Ree5 h8R Rf1 Nd4 Ka7 Kc8 Rd5 b8Q+ Ka6 Qe5 Ka7 Nb5+ Ka8 Qe8 Qb6 Re6 Qd4 Rf3 Qdg1 Rf2 Rd1 Re7 Rdd2 Re1 Rd1 Rc7 Rc1 Nd2 Ra1 Nb1 Rd2 Re5 Re2 Re3 Na7+
1b1rk3/b2N1q2/1Nqq3Q/8/bbBK1p1Q/5Q1B/q1pQ2r1/n1BN2RB w - - 0 1 legal: proof: g4 d5 c4 dxc4 f4 b5 h4 e5 b4 exf4 a4 g5 axb5 Nd7 h5 Ne5 Ra6 Ng6 hxg6 f3 Rf6 Qd4 Rf4 gxf4 g5 Qd8 Kf2 f5 e4 h5 d4 c5 e5 a5 b6 h4 d5 c3 e6 h3 e7 h2 d6 c2 g7 a4 g6 a3 b5 a2 b7 a1B b8Q c4 b6 c3 b7 Nh6 g8B Bd7 g7 Ra2 Bh7 Ba4 g8B Rb2 Nh3 Ng4+ Ke1 f2+ Ke2 f3+ Kd3 f4 Nd2 Ne3 Rg1 h1Q Kd4 Qg2 Bfc4 f1Q Be4 f2 Bge6 Qe2 Qa8 f1Q b8N Qfe1 Bb7 Qc6 Nd7 Q1f2 Qa5 Qh5 Qf3 Qf7 Qa6 Qg2 Nf2 Ra2 Bh3 Qdc7 Ba3 c1B Nd1 Rg8 Qa5 Rb2 Qg5 Ra2 Qh4 Nc2+ Kd3 Bab2 Qh6 Na1 Kd4 Rh8 Kd3 Qf2 Bd5 Qb8 Nc5 Qd7 Nc4 Be3 Qg4 Qb5 Ba6 Qc6 Bh1 Qd8 Qhh4 Rh5 Qf3 Rd5+ Ke4 Bd4 Bb5 Be5 Qh6 Bc1 Qh4 Be3 Bc1 Qb2 Qh6 Qa3 Ba6 Rg2 Bb5 Qg7 d7+ Kf7 Ba6 Qb8 d8Q c2 Bb5 Qa2 e8Q+ Kg8 Qdf6 Qf7 Qfh4 Bf2 Qee6 Rd8+ Qd5 Bc7 Nd7 Bb4 Kd3 Ba7 Ncb6 Bcd6 Bc4 Qbc7 Ne5 Q7d7 Ke4 Bdb8 Kd3 Qdd6 Ned7 Qfe6 Qd4 Kf7 Qdd5 Ke8 Qd4 Qde7 Qde3 Q7f7 Kd4 Qee7 Qd2 Qed6+
QRb1B3/1bn4p/5N2/qnp1N1pn/Q3B1rB/1NnN1KQ1/4B3/2r2n1k w - - 0 1 legal: proof: g4 b5 a4 d5 axb5 g6 d4 e6 b4 Bg7 c4 f5 h4 fxg4 h5 Ke7 h6 Ke8 hxg7 dxc4 d5 e5 Ra2 Ne7 Rd2 Ng8 Rd4 exd4 e4 Kd7 Ke2 Kd6 f4 a5 f5 Ke5 f6 c5 b6 g3 b5 c3 d6 c2 b7 d3+ Kf3 a4 d7 d2 b6 g2 f7 a3 f8N a2 Ne2 a1N Nf4 Na6 b8Q+ Nc7 b7 Nf6 g8B Nb3 Bd5 Nh5 Be2 Ra1 Qa8 Rg8 b8Q Kd4 e5 g1N+ Kg4 Ke3 e6 Kf2 e7 Nf3 e8B Rg7 Be4 Nbd4 Nd3+ Kg2 Bb2 c1N Qda4 d1B Nd2 Na2 Nb3 Bc2 Rb1 Ndb5 Bf6 Nac3 Bh4 Bb7 Rb2 Rc1 Rb1 Kh1 Rb2 Qf6 d8N Qa6 Nc6 Qa5 Nd7 Bc8 Nce5 Bb7 Bf5 Nd2 Nf6 Nf1 Rb1 g5 Bfg6 Rd7 Bf5 Rd5 Kf3 Rd4+ Be4 Rb4 Qc8 Rd4 Qg4 Bc8 Qg3 Bb7 Na1 Bb3 Rb2 Be6 Rb4 Bec8 Nb3 Na3 B4c6 Rg4 Be4 Bc6 Rb7 Nab5 Rb8 B6b7
3b4/2BQ1Bq1/kn1Q3q/pnp1R1q1/N1K1N1Q1/B1p5/3N1Nbn/3Q1r1b w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Bh3 f4 Bg2 Qd5 Bf1 Qd8 Ra6 h5 Rg6 a5 b4 Ra6 Rg5 Rf6 Rg6 Rf5 gxf5 Ba6 Rg5 Bc8 Rg4 hxg4 d4 Kd7 Kd2 c5 Kc3 Kc7 h4 Kb7 e4 g5 d5 f2 h5 f3 f6 g3 d6 g4 d7 g2 h6 g3 h7 Bd6 e5 Qc7 d8Q Bf5 b6 Be4 b5 Qc6 f7 Ne7 f8N Qd7 e6 Bd5 Nh3 g1Q Ba3 g2 Nd2 Qc8 Nd7 Ng6 e7 Rf8 e8N Nc6 h8Q Nge7 Qh5 Bc7 Nef6 Na7 Nfe4 Bc6 Bd3 f1B Qg4 f2 Bc2 Qh2 Bb3 g1Q Qe8 Bg2 Qf7 f1N Nhf2 Qf4 Rh5 Nh2 Re5 Qe8 Qh7 Bd8 Qhh3 Kc8 b7+ Kc7 b8B+ Kb7 b6 Qg6 Qh7 Qgh6 Bc7 Ka6 b7 Qfg5 b8Q Nec8 Nb6 Bh1 Na4 Nb6 Qhd7 Nb5+ Kc2 c3 Kd3 Rf4 Bf7 Ba8 Nh3 Rf1 Nhf2 Nc8 Kc4 Qg3 Nf6 Bag2 N6e4 Qgg7 Bb6 Qge3 Qbd6 Qeg5 Bc7+ Nb6+
B2b1q1B/4N3/NQ2rN1k/1K2n3/r1Rqp2n/1Br1n1p1/B1p4N/1QQ1r3 w - - 0 1 legal: proof: d4 h5 g4 g5 a4 b6 c4 d6 e4 Bg7 f4 Kf8 c5 a5 b4 axb4 e5 Bd7 e6 Bh6 exd7 Kg7 d5 Kg6 Ra3 Bg7 Rg3 Bf8 cxd6 gxf4 g5 Bh6 Rg2 Bf8 Rg4 hxg4 Ke2 c5 Kd3 e5 Kc4 f5 h4 g3 h5+ Kg7 g6 f3 h6+ Kf6 g7 Kg6 a5 e4 a6 f4 h7 b3 a7 b2 Kb5 f2 Bc4 f1Q Nc3 b1R+ Bb2 f3 Qc1 f2 Nf3 Nh6 g8B Nc6 Nh2 Ne5 Rg1 Qd1 Ba2 f1N Rh1 Qf6 d8N c4 d7 Nf5 d6 Be7 Nd5 c3 Nc6 Qd4 d8N Qf8 d7 N1e3 Nf6 Nh4 Bgb3 Kh6 Nb7 Bd8 Nc5 c2 Rd1 Rg8 Ne7 Rg6 Na6 Rc8 a8B Ra1 Qb1 Rc3 h8Q+ Kg5 Ne8 Re6 Qf6+ Kh5 Qf1 Kh6 Nf6 Qd3+ Kb4 b5 Rd2 Qd5 Qfc1 Qd3 Rd1 Qd5 Rd4 Qc4+ Ka3 b4+ Ka4 Qd5 Rc4 Qd1 Kb5 Qd4 Ba4 b3 Qh1 Bc7 d8Q Bb6 Qhc1 Ba5 Ba3 b2 B4b3 Bc7 Qd6 Bd8 Qb6 Ng4 Qh1 Ne5 Qbc1 b1R Bb2 Ng4 Qd2 Rg1 Qc1 Re1 Qg1 Ne5 Qb1 Re2 Qgc1 Re1 Rc7 Rc4 Nh5 Nef3 Bc3 Qd6 Bh8 Qd1 Nf6 Rc3 Rc4 Qd6 Qbb2 Qd2 Bb1 Ra4 B1a2 Ne5 Qbb1 Qd4
1Q1nR1b1/Q5rN/2pb2q1/q1RR3B/1n1N2Q1/2Kn2Nb/2p1nQ1p/2k4N w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 h4 dxc4 h5 Ra7 b3 Bd7 Bb2 Bc8 Bf6 Ra6 f4 gxf4 g5 e5 Be7 Rh6 Bc5 Rg6 hxg6 e4 Bf2 e3 Qc1 exf2+ Kd1 Qd6 Kc2 Qd4 Qd1 Qf6 Kc1 Qd8 Kb2 Ke7 d4 Kd6 e4 f5 b4 h5 b6 c6 b5 a4 b7 f3 d5 Kc5 g7 Kb4 d6 a3+ Kc2 c3 g6 a2 e5 f4 e6 h4 b6 h3 e7 h2 e8R Nd7 b8Q Ne5 d7 Rh7 b7 Nh6 g8Q Nd3 g7 Bd6 Qe1 Nf7 Nd2 Ka3 Nh3 Qa5 d8N Be6 Be2 f1N Qa7 f2 b8Q f3 Rc1 Ng3 Ne4 f1B Nhf2 Bfh3 Rg1 a1Q Nh1 f2 Bh5 f1N Qef2 Ne2 Rg5 Bc4 Ne6 Nd8 Neg3 Qb1+ Kd1 Bd5 Nd4 Ba2 Rd5 Bc4 Qc8 Kb2 Qg4 Ba2 Qh8 Bc4 g8N Rg7 Nf6 Ba2 Rc5 Bg8 Nh7 Ne1 Re3 Qg6 Re8 Nd3 Rg5 Nd2 Rb5+ Nb3 Rd5 Nbc5 Rc2+ Ka3 Rc1 Na6 Kc2 Ka2 Rb1 Ka3 Rbb5 Ka2 Rbc5 Nab4+ Kd1 c2+ Kd2 Nef4 Kc3 Kb1 Qc8 Kc1 Qcb8 Re7 Qg7 Rc7 Qd7 Rb7 Qf5 Rg7 Qg4 Ne2+
1b1r1rQB/kn2p1QR/1b4R1/2qN4/3N4/1Qr1qpRQ/bp6/1b2NK1N w - - 0 1 legal: proof: f4 a5 e4 f5 c4 d5 cxd5 g6 b4 axb4 g4 Kd7 h4 Nc6 h5 Ke8 g5 Na5 Bh3 fxe4 f5 Nc4 f6 Ne5 Bf5 gxf5 Qc2 Ra5 Qd1 Ng6 hxg6 Ra8 a4 Kd7 d4 h5 f7 c5 a5 Kc7 d6+ Kb8 g7 b5 d7 f4 g6 b3 d5 e3 d6 h4 a6 b4 Bb2 e2 Rh2 h3 Ra3 f3 Qd5 Nh6 g8Q c4 g7 Qc7 d8Q c3 d7 c2 Ra4 c1B Na3 Bg5 Nc2 Ka7 Ra2 Bb7 Qc8 Bf4 d8N Nf5 Ne6 Qc5 Ned4 Nd6 Kf2 e1R Ne2 Rc1 Ne1 Rc3 Kf1 Be5 Qg4 Rd8 Ng3 Ba8 Qc8 Nb7 Nh1 Bb8 Rg2 h2 Qh3 Na5 Qde6 Bd5 Rg6 Nb7 Ba1 b2 Rg3 Be4 Qb3 b1B Rf2 Bd5 Rb2 Kb6 a7 Ka6 a8N Ka7 Nb6 Be6 Qc2 Bea2 Nd5 b3 Qd3 Bc7 Rbg2 Bb8 Qgh7 Rg8 Rg1 Rh8 g8Q Bh6 f8R Be3 Rf7 Bf2 Qgg7 Rhf8 Qhg8 Be3 Rg6 Bf2 R1g3 Bg1 Nf2 h1Q Qc2 Qh2 Nh1 Qd2 Qd1 Rc4 Bc3 b2 Qb3 Bf2 Qe5 Qc1 Rh7 Qe3 Qeg7 Bg1 Ndc2 Bf2 Bf6 Bg1 Nd4 Rc3 Ne6 Qb4 Qgh6 Qee4 Bh8 Bb6 Qhg7 Qe3 Nd4 Qc5
4rbR1/1k2qr1q/2q5/1rpb4/Nb3R2/1N1RrN1q/1K3BRB/BR4B1 w - - 0 1 legal: proof: c4 b5 f4 bxc4 e4 d5 exd5 Nf6 d4 Bf5 d6 Na6 d5 Nb4 a3 Bg4 axb4 Bc8 b5 Ng8 g4 g5 Ra5 e5 Na3 e4 Bh3 Nf6 Nb1 Nd7 Ra1 Ne5 fxe5 h6 Qf3 h5 Qf4 gxf4 g5 Be7 Be6 Bf8 Bg4 hxg4 Kd2 Kd7 Kc3 c5 b4 f5 h4 a5 b6 e3 g6 g3 b5 g2 b7 a4 b8B a3 e6+ Ke8 g7 f3 g8R e2 e7 Kd7 e8R e1B+ Nd2 f4 b6 f2 h5 f1R h6 a2 h7 f3 b7 f2 Re2 Qe7 Rh4 Ra7 Rf4 Ra4 Nf3 g1Q Kb2 Rb4+ Nb3 Qh1 Be3 Rb5 Rb1 a1R Rc2 Kd8 d7 Ra3 Be5 Bd2 b8N Bb7 B5d4 Kc7 d8R Kb6 d6 Bb4 d7 Bd5 Rd2 Qg2 Rd3 Qh1 Rg2 Kb7 Be5 Rg8 h8B Qhh7 Bhg7 Rh8 Rc8 Rg8 d8B Rh8 Nd7 c3+ Kc2 Rg8 Nb6 Rh8 Na4 Rg8 Re1 Rh8 Kc1 c2 Kb2 Rg8 Rb1 Rh8 Nc1 Rc3 Nb3 c1Q+ Ka2 Qe1 Kb2 Qe8 Bh4 Qc6 B3d4 Qee4 Bgf6 Qe7 Bg3 Q4h7 Bh2 Rg8 Bg1 Rh8 Rdd1 Re3 Rd3 Bg7 Bh4 Re8 Bg3 Bf8 B3h2 Rfe1 Bf6 f1Q Bh4 Rd1 Bhf2 Rc1 Ka2 Rc4 Ba1 Rce4 Kb2 Re6 Rd8 Rf6 Rd6 Rf7 Rdg6 Qd1 Rg8 Qf1 R2g3 Qfh3 R3g7 Qd8 Rg2 Qe7
n2nqNB1/4BRp1/1NR1K2B/4R1N1/p4B2/3n3n/3NNbbr/3rkb2 w - - 0 1 legal: proof: e4 h5 g4 hxg4 c4 e5 d4 f5 exf5 b5 b4 c5 d5 d6 a4 cxb4 axb5 Qd7 c5 Qd8 Qd4 exd4 cxd6 Rh7 Kd2 Rh4 Ke1 Rh8 Ke2 Kd7 Kd3 a5 Kc4 g3 h4 d3 f4 a4 f6 g2 b6 b3 h5 d2 f7 d1N f5 b2 f6 Nh6 b7 Ng8 h6 Ne7 h7 Ra7 Rh5 Nf2 Bh6 Ra6 Re5 Nf5 Ne2 g1N Nd2 Qe8 Rc1 b1B Bf4 Be7 f8R Ngh3 f7 Bh4 Bg2 Rb6 Rc3 Na6 b8N+ Kd8 d7 Kc7 d8B+ Kd6 Bh1 Nd3 Nd7 Bb7 Bdg5 Bf2 Bh6 Nc7 Bf3 Rb5 Nb6 Na8 Bh5 Rb2 Bg6 Rg8 h8N Rc2 Bh5 Rc1 Bg6 Rd1 Bh7 Bc2 Ng6 Bc6 Nh4 Rh8 Nhf3 Bb1 Rc2 Bb7 Ng5 Ba6+ Kc3 Kc5 Bg8 Nd6 Rc1 Nb7 d6+ Kc6 d7 Rh7 Re6+ Kc5 d8B Ba2 Re5+ Bd5 Be7+ Kb5 Re3 Bg2 Kd4 Rh8 Rc5+ Kb4 Rc6+ Ndc5 Nc1 Baf1 Ke5 Rh7 Re4+ Kc3 Ne2+ Kd3 Kf5 Kc2 Re5 Rh8 Ndc4 Nd3 Ke6 Rh7 Ne3+ Kd2 Nec4+ Ke1 Nd2 Qd8 Re8 Rh8 f8N Qb8 Rd8 Rh7 Rdd6 Qe8 Rd7 Qd8 Bb4 Ng1 Rf7 Qe8+ Be7 Rh8 Nh3 Rh7 Bhg5 Rh4 Bh6 Rh5 Ng5 Rh2 Rc4 Nh3 Rc6 Nd8+
b1bq2Nb/1qr1R3/2k1N3/r4N2/R5Q1/RRKq1qN1/q3bn1R/3RrB2 w - - 0 1 illegal: No possible last move
r3N3/r1n1NRBN/r1bn4/6Qn/k1b2K1N/pNR4R/1RNr1b1q/7n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 g5 d4 f5 Kd2 c5 Ke3 a5 h5 g4 h6 c4 b6 c3 b7 c2 d6 Kc6 d7 Kb5 h7 a4 d5 a3 d6 Ra5 Bb2 c1R Qd5+ Rc5 Bg7 Nf6 Kf4 Ne8 e4 Qc7 d8N Ra7 e5 Ka4 b5 Rc2 d7 Rd2 b6 Na6 b8R Bb7 Nf3 g1N Nh4 g2 Nf7 g3 d8R Nd6 e6 Bc6 e7 Rg8 e8N Ne2+ Ke3 g1R h8N g2 b7 Re1 Rd7 g1N N8g6 Nh3 Ne7 Nf2 Ng5 Ng3+ Kf4 Re6 Rh3 Nfh1 Nh7 Rg6 Rc8 Qb8 Qe5 Nc7 Ra2 Rh8 Rb2 Rh6 Kg5 f4 Qd5 f3 Kf4 f2 Qg5 Na6 Rcc7 f1B Rc8 Bc4 Rcc7 Qd8 b8N Re6 Rc8 Nc7 Na6 Rg8 Nb4 Rh8 Ra8 Qb8 Nc2 Rg6 Rb3 Rg8 Rc3 Qb2 Rb8 Qa2 Bh6 Bg7 Rb6 Bd4 Bg7 Bf2 Rb2 Re6 Neg6 Rf8+ Rf7 Rh8 Ne7 Rg6 Nef6 Rha8 Ne8 Rd4+ Ke5 Bb7 Bf6 Ndb5 Ne3 Qa1 Bg7 Rga6 Rc1 Nd6 Nd2 Bc6 Nb3 Rd2 Rc3 Qg1 Kf4 Qh2 Nc2 Nh5+
1n1bR3/1N2RRq1/R1nN2RK/3bnp2/1k6/6nN/Qq3R1B/1qNr1nb1 w - - 0 1 legal: proof: f4 b5 a4 a5 axb5 e5 d4 c5 g4 cxd4 g5 h5 Bh3 f6 Bg4 hxg4 Bd2 Ra6 Be3 f5 Bc1 Rf6 gxf6 exf4 Kf2 g5 h4 d5 e4 Kd7 c4 Kd6 b4 g3+ Kf3 g2 b6 a4 b7 d3 h5 d2 b5 Kc5 h6 d4 f7 a3 h7 a2 b6 d3 e5 Nd7 b8R Bg7 f8R Nh6 e6 Qe7 b7 Be5 Qc2 d1N Nc3 d2 Nce2 Kb4 c5 Bc7 c6 Qg7 e7 Nf7 e8N Nd8 Rh6 Nc3 Rf7 d1Q Nh3 g1B Nd6 Ne4 Rg6 Ng3 Bb2 Re8 h8R Qb1 Nc1 Re1 Be5 Rd1 Rh7 Ba5 c7 Nc6 Ra8 Ndb8 Ra6 Be6 c8N Bd8 Re7 Qb2 Rb1 a1Q Qe2 Qh8 Rhf7 Qg7 Qg2 Qa2 Ra1 Qab1 R1a2 Q2a1 Rf2 Qab2 Qf1 Bc4 Qe2 Bd5+ Ne4 Qd4 Qa2 Qdb2 Bc7 Nf1 Nd6 g4+ Kg2 g3 Kf3 Bc4 Nc5 g2 Nb5 Ng3 Be5 Nd7 b8R Be6 Rc8 Ndb8 Nd6 Bd5+ Nde4 Ba5 Rce8 Bd8 Nb7 Bh2 Bc7 g1N+ Kg2 Nf3 Ned6 Qf8 Ng5 Qfg7 Kh3 Nfe5 Kh4 f3 Nh3 Bg1 Kg5 Qh8 Rd2 Qf6+ Kh6 f2 Re2 f1N Rf2 Bc4 Bb6 Be6 Be3 Bd5 Bf4 Nh1 Bh2 Nhg3 Rh7 Qf8+ Rhg7 Qf6 Rgf7 Qg7+
4bRK1/r2r1Np1/nqq3B1/1R6/rqq2N1B/1qrBN3/2NBRN1k/b7 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 h5 Qe1 f4 Qg3 Nc6 Ke1 Nce7 Qg2 Nf5 gxf5 Ke7 Qg5+ Ke8 Qg4 hxg4 Kf2 Ke7 c4 Kd6 h4 Ke5 e4 a5 b4 d5 h5 a4 f6 d3 b6 d4 h6 d2 f7 d1R h7 d3 b5 d2 b7 a3 b8R a2 b6 Qf6 c5 Qc6 b7 Qg6 c6 Qf5 c7 Ra6 Rh2 Nf6 Na3 Qg6 Nc2 Bb4 f8N Bd7 c8N Ra7 Ne6 Bc3 Nb6 Rc8 h8N Be8 Nd5 Nd7 Nde3 Nc5 Bd3 Na6 Rb1 a1R Nh3 Ra4 Rb5+ Rc5 Rd8 Ba1 Rg2 Qf6 Rc8 Qf8 b8B+ Qd6 Rb4 Rc3 Nf7+ Kf6 Rd8 Qc6 Rb5 Kg6 e5+ Kh5 Bd6 Kh4 Bf8 Rh1 Bb4 d1Q Bd2 Qb1 Rh2 Rd1 Ba3 Qb3 Be7+ Kh5 Bh4 Qb4 Rh1 Qb3 Re1 g3+ Kg1 g2 Kh2 f2 Re2 f1Q Nf2 f3 Kh3 Qe1 Rdb8 Bd7 Rf8 Be8 Kg3 Ra3 Kf4 g1Q Kf5 Ra2 Ned4 Ra4 e6 Qg6+ Ke5 Qb6 e7 Qgc6 Nh3 f2 Ne6 f1Q Nf2 Qh3 Nc7 Qg4 Ncd5 Qgb4 Kf5 Qh1 Ke5 Qcc4 Kf5 Bc6 Ke6 Qg2 Ng5 Qge4+ Kf7 Be8+ Kg8 Qeg6 Nf7 Qgc6 Bg5 Rg1 Bf6 Rg5 Nf4+ Kh4 Bf5 Kg3 Bd3 Rg6 Bg5 Kh2 Bh4 Bd7 e8B Re6 Nh6 Rd6+ Bf7 Rd5 Bfg6 Be8 Nf7 Rdd7
2BB3q/BRn3nR/3pr3/q1NK4/5r1B/2pbR2r/k1rRNb2/B5bN w - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 g5 h4 gxh4 d3 Kf7 Qf3 Ke8 d4 cxd4 Qc3 dxc3 axb5 Qc7 Ra6 Qb6 Ra1 Qd8 Ke2 Kf7 Kf3 h5 Ke4 e5 b4 a5 f4 a4 g4 h3 c5 h4 g5 h2 c6 h3 b6 a3 g6+ Ke7 c7 Kd6 b5 Kc5 f6 Kb4 b7 Kb3 f7 d6 b6 a2 f5 Ra7 g7 Qh4+ Kd5 e4 f6 e3 Nd2+ Kb4 Ba6 e2 Bb2 e1B Ne2 Bg4 c8N Bh5 Nb3 Bf2 Nc5 Rh6 Ne7 Bg6 Rae1 a1Q Nf5 Qa5 Ba1 Ka3 Nfg3 Bd3 Rd1 Be7 f8B Bg1 f7 Re6 Rd2 Nh6 g8R Nf5 Bh6 Bg5 f8B Ng7 Be7 B5e3 Re8 Bef2 Bhg5 Qh8 Bh4 Ra8 Bd8 Ra7 Bc4 Na6 b8B Rf7 b7 Rf4 Ba7 Nc7+ Kc6 Rh6 b8R Rhf6 Ba6 Re6 Bb2+ Ka2 Rb7 Be3 Re7 Bgf2 Re1 h1R Rd7 Rh2 Nh1 Rg2 Re7 h2 Rf7 Nge8 Rh7 Ng7 Ba1+ Bc2 Rd3 Bd4 Re3 Bd3 Rd1 Bg1 Rbb1 Bf2 Bc8 Bg1 Rb7 Rgf2 Neg3 Rc2 Rd2 Bf2 Ne2 Bg1 Re4 Bdf2 Re3 Nce8 Nhg3 h1R Kd5 Rh3 Nh1 Nc7+
2n1BnnB/4N2p/Bb1r2bN/N1n1N3/1r1R2p1/kN1qKBq1/3r3R/4R3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 h4 b4 f4 b3 Qc2 gxh4 Qf5 Bd7 g5 Bc8 Qg4 e6 f5 exf5 axb3 fxg4 b4 Bb7 b5 Bc8 Kf2 Kd7 d4 Kd6 b4 f5 e4 c5 g6 a5 g7 f4 b6 a4 b7 h3 b5 a3 b6 h2 Nf3 a2 Nbd2 c4 Nb3 c3 Bb2 c2 Re1 c1N Ba6 a1Q Ne5 f3 Ke3 Nd7 b8N f2 b7 f1R Nbc6 Qa3 b8N Rf6 Ne7 Nd3 Nbc6 Rb8 Nca5 N3c5 Ba1 Rb4 Bc3 Kc7 d6+ Kb6 d5 Rf2 Bd4 Rd2 Bc3 Ne6 Bd4+ Ndc5 d7 Qc7 d8N Bb7 Rhf1 h1N d6 Nf2 Rh1 Bc6 Rh5 Be8 d7 Bg6 Ndf7 Qb8 d8R Qc7 Nf3 Qg3 e5 Ne4 Nh6 Nd6 Rh2 Nc8 Ba1 Bd3 Rd4 Bg6 Nec6 Bd6 Ne7 Nf8 e6 Bc7 Bc3 Nf6 g8B Bd8 Bb7 Kb5 Ba6+ Ka4 Bb2 Bb6 Bf7 Qd6 Ne5 Ng8 Ba1 Qa2 Be8+ Ka3 Bc6 Qc2 Bf3 Qd1 Nef5 Qc7 e7 Qc2 e8B Qc3+ Nd3 Qg3 Ne7 Qc4 Ne5 Qc2 Re4 Rd6 Rd4 Qe4+ Kd2 Qd3+ Kc1 Qb1+ Kd2 Bf5 Ne5c6 Rg6 Rd6 Nf6 Nf7 Nfe6 Bd7 Rd8 Ke3 Nf8 Nh6 Ng8 Bh8 Re6+ Ne5 Bg6 Rd3 Rf6 Bdb5 Rdd4 Be8 Rfd6 Rc3 Qf5 Rc4 Rd2 Rd4 Qd3+
rnn1NKR1/k4r1q/3R4/N1R2B2/6Bp/6BB/1nbB2p1/R1Nnrn1n w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nh3 cxd4 Ng1 e5 h4 g5 Be3 d3 Qd2 g3 Qb4 g4 Bc1 Bh6 Qd4 Bg5 hxg5 exd4 Kd2 h5 e4 a5 f4 d5 c4 Kd7 b4 Kc7 g6 Kb7 g7 a4 b6 h4 b5 a3 c5 g2 e5 g3 e6 a2 e7 Qe8 f5 Qd8 e8N Ra3 c6+ Ka8 b7+ Ka7 f6 Qd7 f7 Ra5 f8R Qd6 c7 Qe7 Rf6 Qf7 Rd6 Bf5 c8B Ne7 g8B Rh7 Ne2 g1N Na3 Nh3 Nc4 Nf2 Bh3 g2 Bg4 Qh5 Bge6 Rf7 Bh3 Be4 Beg4 Qh7 Bcf5 Nc8 Rg1 Ra4 Na5 Nh1 Rd1 Ra3 Rc6 Ra4 Rc5 Ra3 Bb2 Ra4 Bc3 Ra3 Nc1 Ra4 Ke1 d2+ Ke2 d3+ Ke3 d4+ Kf4 Ra3 Ke5 Ra4 Rf1 d1N Ke6 Nb2 Rd1 d2 Bb4 Bc2 b6+ Ka6 Bc3 d3 Bb4 Nc4 Bc3 Ne3 Bb4 Nf1 Bc3 Nc6 b8B Ra3 Bd6 Nb8 b7 Ka7 Bg3 Ra4 Re1 d1N Bd2 Nb2 Rd1 Nd7 b8R Ra3 Rb6 Nb8 Rd6 Ra4 Bg5 d2 Re1 d1N Bd2 Rc7 Kf6 Ra3 Re7 Ra4 Rg7 Re7 Rg8 Re1 Ng7 Rf4 Kf7 Rf3 Kf8 Rf2 Rb1 a1R Ne8 Rfe2 Be6 Ka8 Nab3 Ra5 Bd7 Re7 Bdf5 Kb7 Ra1 Ra8 Na5+ Ka7 Ra3 Rb7 Ra1 Rf7#
R2r3R/K2p1nN1/1R5p/1RbBBn1p/2bB1n1b/2RR4/5p1k/1QB2qr1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 g4 exf4 h4 g6 g5 Bb4+ Nd2 Qf6 h5 Qe7 h6 Ba3 Ne4 Qd8 Ng3 Bf8 Nh5 gxh5 g6 Qg5 g7 Nf6 g8R Qg7 hxg7 Ke7 Ra2 Kd8 Ra1 Ke8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 e4 a5 b4 h6 b6 a4 Kb5 a3 c4 d3 b7 a2 Kb6 f3 c5 d2 c6 Kf4 c7 Kg3 b5 f2 e5 Bd6 e6 Nh7 e7 f5 e8R f4 Bg2 f1Q Re3+ f3 Rd3 Na6 b8B Bb4 Ne2+ Kf2 Nd4 Kg3 Rb1 a1B Ba7 Bb2 Ne6 Bf6 Rf8 Bh4 g8R+ Ng5 Ng7 Bb7 c8R Nf7 Rcc3 Rd8 Re8 Rh7 Rh8 Nc5 Qc2 d1N Rb2 Qg1 Qb1 Ne3 Ref8 f2 Bd5 Qf1 Rg1+ Kh3 Rg6 Ba8 Rd6 Ne6 Ka6 Nfg5 b6 Nf4 b7 Kh2 b8B Nf7 Rb6 Bc5 Be5 Nf5 R2b5 Bc6 Bab8 Bb7+ Ka7 Bc8 Bd4 Ba6 Ra5 Bc4 Rb5 Bg3 Bbe5 Bh4 Ne6 Rg7 Rfg8 Rg1 Ng7 Rc8 Re8 Rc6 Rb8 Rc8 Ra8 Rd8
1Nq2Nr1/1pQ4p/nN1NR1b1/k1b4p/1q2N2b/1rR3K1/3pq3/1B1RN1R1 w - - 0 1 legal: proof: d4 f5 b4 c5 h4 cxd4 g4 a5 e4 axb4 exf5 Nf6 Bh6 gxh6 g5 Ng8 h5 Nc6 Kd2 Ne5 Ke1 Ng6 hxg6 Ra6 Rh3 Ra5 Rh1 Ra8 a4 d5 f4 Kd7 Kf2 Kc7 c4 Kb6 c5+ Ka5 f6 e5 f5 b3 g7 d3 g6 b2 c6 d4 f7 e4 c7 e3+ Kg3 e2 f6 d2 Ra3 h5 Qc2 d1Q Nc3 b1Q Nf3 d3 Ne4 d2 Ne1 Ne7 g8R Nc6 g7 Qe8 Rc3 Ka6 a5 Be6 c8N Bd5 Ncd6 Be7 f8N Nb8 f7 Qbc1 Nd7 Bb3 f8N Qc8 Bh3 Qc4 Bf5 Qb4 Rf1 Bf7 Rg1 Ka7 a6 Bg6 Rf1 Bd8 Rg1 Bb6 Rh1 Bc5 Rg1 Nc6 Nb8 Kb6 a7 Ka5 Nbd7 Rc8 a8N Nb8 Nab6 Na6 Nb8 Qa4 Nfd7 Qb3 Re8 Qb4 Nf8 Rg8 Re6 Qbb1 Rc4 Be3 Rh1 Bf7 Nf2 Rc6 Nf3 Rh8 g8R Qb4 Kh3 e1B Bd3 Rc7 Nfe4 Bh4 Rgg6 Qe2 Rd1 Bef2 Ne1 Rg8 Rg1 Bg6 Qc3 Rf7 Bb1 Rf3+ Kh2 Qc2 Qg7 Rb3 Rc8 Bd8 Rc7 Be3+ Kg3 Qc6 Qc3 Qd7 Qg7 Qc8 Rc3 Bc5 Qc7 Bh4+
kn1q2N1/rn3pN1/2Bn1N2/1R4K1/1BR2bBR/RN3rp1/ppr1p3/R7 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 gxh5 d5 a4 bxa4 b5 dxe4 f3 e5 Kf2 e3+ Kg3 e4 Kg2 e2 Qe1 e3 Qh4 Bf5 Qb4 Be4 fxe4 cxb4 Kh3 Kd7 Kg4 Kc7 c4 Kb7 h4 e1R d4 g5 d5 a5 e5 a3 c5 a4 d6 e2 b6 b3 e6 b2 d7 a2 h6 a3 h5 Na6 c6+ Kb8 c7+ Kb7 c8B+ Kb8 b7 Qa5 d8R Rh7 e7 Qb5 e8N Bg7 Rh4 Qd3 Bg2 Qe3 Nf6 Qd3 Nf3 Qd2 Rd3 Qc2 Nbd2 Nb4 Nd4 Nc6 Nf5 Nge7 Nb3 Qd1 Bd2 Ra7 Bb4 Rh1 Rc3 Qd8 Rc4 Rc1 Rh3 Bh8 Ng7 Nf5 Bd7 Nd6 Bd5 Kc7 b8R Rc3 Rb5 Rc2 Rf4 Nb8 B5c6 Nb7 Kf5 g4 Rc4 Nd6+ Kf4 Rb7 Kg5 Ra7 Nf5 Bg7 Bc8 Rh8 h7 g3 h6 Re8 h8R Re3 h7 Rf3 Re8 Bh8 Re3 Bg7 Rhh4 Bh8 Rg1 a1N Ng7 a2 Rc1 Rb7 Bg4 Ra7 Nc5 Nb3 Ra1 Na5 Ra3 Nab7 Nb3 Rf4 Nh5 Bg7 h8N Rf3 Ng6 Bh8 Ne7 Bg7 Nh7 Be5 N7f6 Nd7 Ng6 Kb8 Ng7 Ka8 Ne7 Nb8 Neg8 Bf4+
2nrR2B/5r2/1Nr1r1qB/q2p3p/4kN2/2BbB3/3RB2N/q1KB2N1 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 f5 exf5 c5 a4 b5 axb5 cxd4 Qd2 a4 Qe2 Qb6 Qd1 Qd8 b6 Ra6 b7 Rh6 b5 Rg6 Qd3 Ra6 Qb3 axb3 b6 Bh6 Bxh6 Ra5 Bc1 Na6 Bxa6 Ra3 Bf1 Ra8 Kd1 Kf7 b8B Kf6 c4 h5 g4 e5 f4 h3 c5 e4 c6 h2 g5+ Ke7 c7 Kd6 f6 Kd5 f5 d6 b7 b2 f7 d3 f8N e3 f6 d2 g6 Qd7 f7 Ne7 g7 Qc6 g8B Bh3 c8N Bd7 Ra2 Bg4+ Be2 Ra3 Nb6+ Ke4 Ng6 Bf5 f8B Nc8 Bh6 Qd5 Nf4 Qa5 Bb3 d5 Be5 Rd8 b8B Ra4 Bc3 Rc4 Bc7 Rc6 B7e5 Bg6 Kc2 d1R Bh8 Rf1 Nd2+ Kf5 Bd1 e2 Ndf3 e1R Be2 Ke4 Be3 b1Q+ Kd2 Bf5 Bbd1 Qd3+ Kc1 Bh7 Ngh3 Bf5 Rg1 h1Q Rg8 Qg1 Nh2 Qg6 Na4 Qd4 Nb6 Qda4 Rd2 Qa1+ Kc2 Rf2 Ng1 Qh7 Nfh3 Qg6 Bc4 Bg4 Bef4 Be2 Re8+ Kf5 Ba6 Bc4 Bfg5 Re5 Be3 Ke4 Bb5 Rff6 Nf4 Rf7 Ba6 Ree6 Bb5 Ba2 Bbe2 Bb1+ Kc1 Bd3#
b4k1r/Kqb5/2N3bN/Bq1R1r2/nR1RN1pR/Bnn5/1r1R4/NR4b1 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 b5 axb5 f3 Qa4 h6 Qf4 gxf4 g5 h5 Bh3 Bg7 Be6 Bf8 Bg4 hxg4 Kf2 f5 h4 a5 e4 c5 b4 a4 d4 a3 h5 c4 h6 a2 h7 c3 d6 c2 e5 Na6 b6 Bg7 g6 Qf6 b7 Qg5 b8N Nc5 d5 Qh5 b5 Bh6 g7 Nb3 e6 Qg5 d7+ Ke7 d8B+ Ke8 b6 Nc5 d6 Nf6 g8N Kf8 b7 Na4 d7 Nd5 Na3 Ndc3 Ba5 Qd8 Rb1 a1N Rh2 Nb3 Nc6 Rb8 Ne2 Bg7 Rh5 Be5 Nh6 Bc7 Ng3 Qe8 Bb2 c1B d8R Bd7 Ne4 Be3+ Kf1 f2 Nc2 Ba7 Na1 Bc8 Kg2 f1R Rd2 Bg1 Rd4 Bd7 Rh4 Qc8 e7+ Ke8 Ba3 f3+ Kh1 f2 Kg2 f4 Rh5 Rc1 Rhd5 Bf5 Rd2 Rf1 R2d4 Rf8 h8R Bg6 Rh7 Rf5 Rd2 Ra8 b8R Rc1 Rb4 Rc2 Rbd4 Rb2 Kf1 Bh2 Kg2 f1B+ Kf2 f3 Ke3 Bg2 Kd3 f2 Kc4 f1Q+ Kb4 Ne2 Kb5 Bg1 Rb4 Ra7 Rbd4 Rb7+ Ka6 Rb8+ Ka7 Nec3 Nf7 Qd3 Rh4 Qb5 Nh6 Bh1 Ng8 Kf7 e8R Kg7 Nh6 Bf3 Nc5 Bg2 Ree5 Kf8 Rb4 Be4 R5d4 Bf3 Nd8 Bb7 Ne4 Ba8 Rd5 Ke7 Rf1 Qcd7 Ndf7 Rh8 Nd8 Kf8 Rb1 Qc8 Nc6 Qcb7#
b1BRNq1b/kbq4B/3q3N/B2N4/N2K1rN1/2NB1b2/4rpnr/3rR3 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 h5 Qe1 f4 Qg3 Nc6 Ke1 Nce7 Qg2 Nf5 gxf5 Ke7 Qg5+ Ke8 Qg4 hxg4 Kd2 a5 Kd3 g5 b4 d5 e4 Kd7 c4 Kc7 h4 Kb7 c5 g3 f6 g2 b6 g4 f7 f2 b5 a4 c6+ Kb8 h5 a3 h6 a2 e5 f3 b7 g3 c7+ Ka7 b8N Be7 f8N Bb7 c8B Nf6 e6 Qc7 h7 Ng4 Na6 Ne3 Nb4 Bf6 Ne2 g1R e7 Rg2 e8B Rh2 Ne6 g2 Ng7 g1R Bb2 Rf8 h8N Ng2 Nec3 Rb8 Be2 f1B Na4 f2 Nbc3 Ra8 Rb1 a1Q Rd1 Qa3 Bg6 Be5 Bc1 Rf6 Nf7 Rb8 Bh7 Ba8 Bh3 Re8 Bd2 Ree6 Nh6 Bb7 Na2 Qf8 Nb4 Re7 Bc8 Ba8 Kc2 d3+ Kb2 d4 Ne8 Bb7 Nbd5 Ba8 Be1 d2 Bed3 Be2 Kb3 Bf3 b6+ Kb8 b7 Ka7 Bde4 d3 b8N Bd4 Beg6 Re2 Nd7 Be4 Ne5 Bf3 Ne3 Bfb7 Ned5 Rf1 Neg4 Rg1 Rc1 d1B+ Rc2 d2 Bd3 Rf4 Kb2 Bh8 Rc1 Rf6 Rb1 Bb3 Rd1 Bc4 Kc2 Bb5 Kb3 B5c6 Kc4 Rf1 Kd4 Rg1 Nf4 Bf3 Nfd5 Rf1 Rb1 d1Q Rb2 Bc6 Rb8 Bcb7 Bd2 Qa1 Rg1 Rd1 Re1 Qb2 Bcf5 Qb5 Rd8 Qbc6 Bc8 Q6d7 Nb1 Qde7 Ba5 Qed6 Nbc3 Rf4#
n1q3B1/B1R3B1/1qNBr1N1/r1nn1b2/6B1/6K1/kbrr4/B2qBRBr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Qb3 g2 Qg3 fxg3 Nb1 Rh7 Ra4 Rh3 Ra1 Rh8 d4 Ke7 e4 Kd6 h4 f5 b4 c5 h5 g5 b6 a5 b7 f4 b5 c4 e5+ Ke7 e6 Kd6 e7 c3 e8B f3 b6 a4 h6 c2 h7 g4 Bf7 a3 Ne2 g1Q Bd2 a2 Nbc3 g2 Nf4 g3 Ng6 Nd7 Ne2 Ngf6 Rc1 a1N Bg8 Nb3 b8B+ Qc7 b7 Ra5 Be3 Bg7 Ba7 Nb6 b8B Bf5 Bf2 Na8 Be3 Kd7 d6 Kc6 d7 Kb5 d8B Kb4 d5 Ka3 d6 Qc8 d7 Ka2 Nd4 Nd5 Bh4 Nc5 Nc6 Bb2 d8B f2+ Ke2 Rb5 Kf3 Ra5 Ba6 Qd1+ Be2 g1R Bdf6 g2 Kg3 f1R Bg4 Rf2 Bd6 Re1 Rf1 Rd2 Bg1 Re6 Bg7 Bd3 Rb1 c1R Rf7 Bf5 Rc7 Rcc2 Rc1 Qe2 Rf1 Qd1 Bf7 Rd8 h8B Rd7 Bg8 Rf7 Bc3 Rh7 B4f6 Rh1 Bhg7 Rf2 Be1 Rfd2 Bfe5 Ba3 Ba1 Bb2 Bh2 g1Q+ Kh3 Qd4 Kg3 Qb4 Bg1 Qb6
b3B2k/4rK2/3RN2b/rrR3BB/r5n1/1qq3n1/2b1B1nN/N2RRnN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 Kf3 f5 g4 Kf7 d4 Kg7 b4 a5 e4 c5 e5 a4 d6 c4 d7 h3 b6 a3 b5 h4 g5 c3 g6 h2 e6 h3 b7 c2 e7 a2 e8B Ra4 d5 Rh7 b6 Ne7 d6 Nbc6 b8N Kh8 b7 Nd5 Be2 Bh6 Qe1 Qb6 d8R Ne3 d7 Qb3 Na3 Ng2+ Be3 c1R Nc2 Rb1 Qb4 Rb2 Rd1 a1Q Qe7 Qaa3 Na1 Ne5+ Kf2 f3 Kg3 f2 Nc6 f1R b8R Qc5 Rb5 Qcc3 Nd4 Ng4 Ndf3 Rba2 Rd6 Rb1 Bg5 Ra5 Rbd5 R2a4 Rc5 Ba6 Rd1 Bd3 Re1 Bc2 Rd1 N2e3 Kh4 f4 Kh5 Ng2 g7+ Kg8 Nd2 f3 Nf1 f2 Rd6 Bd1 Kg6 Rb2 Nd2 f1N Ndf3 Rb1 Rb8 Rb2 d8N Rb1 Rb4 Bc2+ Re4 Rb2 Ne6 Rb1 Bd3 Rb2 Re1 Rb1 Ne2 Rb2 Rg1 h1N Nh2 Nhg3 Rd1 Qd5 Rh1 Rbb5 Ng1 Qdb3 Ne2 Nfe3 Rhe1 Nef1 Ng1 Nf5 Nhf3 h2 Be2 h1B Nh2 N2e3 Bf6 Ba8 Bh4 Ng2 Bg5 Ne5+ Kf6 N5g3 B2h5 Rh8 Be2 Kh7 B8h5 Ng4+ Kf7 Rhb8 g8B+ Kh8 Bh7 R8b7 Be4 Rd7 Bc6 Rda7 Be8 Rxe7+
R4B1r/n1Nk1NrN/1nr4B/1p4b1/4q3/3qBrn1/R1p1bR1R/KB5N w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 gxf4 g5 Kf7 Qe2 Ke8 Qg4 hxg4 Kd1 c5 Kc2 e5 Kb2 b5 h4 g3 a4 b3 d4 f3 d6 e4 d7+ Ke7 a5 e3 h5 f2 h6 c4 f6+ Ke6 g6 e2 f7 e1N d5+ Kd6 h7 g2 g7 Nc2 a6 Ne1 a7 Nc2 Ra2 Be7 f8B Na3 Nc3 Qb6 Be3 Qb7 Bd3 f1R Nh3 Nc6 Nf2 Kc7 Nce4 Nf6 g8R g1R Rh2 Nh5 Ng5 Rb8 a8R Na7 d6+ Kc6 Bc1 c3+ Ka1 Nc4 Nh1 Rf5 Rg6 Nb6 Rf6 Rg3 Be3 b2+ Kb1 Rg4 Bc2 Ng3 Bh6 Rc5 Rff2 Rf8 h8N Rf6 Nh7 Rg7 d8B Bg4 d7 Be2 Bg6 Rf3 Nf7 Bg5 Be7 Rh8 d8N+ Kd7 Ne6 Rc7 Bd3 Qe4 Bf8 Rc6 Nc7 Nac8 Kc2 Na7 Kb3 b1Q+ Ka3 Qe1 Bb1 c2 Kb2 Qd2 Ka1 Qdd3
1rq2K2/1B1Q2Q1/4r1q1/B1Q1NpB1/q2B4/1nRq3B/rkn4Q/4rrQ1 w - - 0 1 illegal: No possible last move, all moves rejected
2QqB3/1K4qp/4n1Nn/1B2Bq1b/1r2Q1pb/1Nb2NQ1/N3Nr2/1n3N1k w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 d6 e5 d4 f5 b4 Kf7 g4 Ke8 g5 Kf7 d5 Nd7 Ra3 Ke8 Rd3 Nb8 Rd4 exd4 Rh2 Qd7 Rg2 Qd8 Rg4 fxg4 Kd2 Kd7 Kd3 c5 Ke4 a5 f4 c4 g6 d3 f5 c3 b6 h3 b7 c2 b5 d2 b6 h2 g7 h1Q+ Nf3 a4 f6 a3 f7 a2 Bb2 a1Q Qe1 c1B Be5 d1N Nd2 Nc6 b8Q Nce7 b7 Nh6 g8Q Bg7 f8N+ Ke8 Ng6+ Kd7 e3 Ra7 Bb5+ Nc6 Nf1 Qaa5 Qg3 Qh2 Qa8 Qe8 b8N+ Kd8 d7 Qb2 Qf8 Nd4 Na6 Ne6 Nc5 Rb7 Nb3 Nc3+ Kd3 Qaa1 Bb8 Ra7 Nfd4 Nf4+ Kc4 Qg2 Kc5 Qgb2 Kb6 Ra4 e4 Qc2 e5 Nb1 e6 Rb4 Ne5 Rg8 Qf5 Ke7 Ne2 Rf8 Bc7 Bb7 Qc8 Bc6 Qfd3 Kf6 d6 Kg5 e7 Ne6 d8N Re4 d7 Rf2 Bb8 Rb4 Ndf7+ Kh5 Qf5+ Bg5 Nf3 Qf6 Qd5 Qcf5 Nh8 Qff8 Ka6 Bc3 Be5 Qg7 Qe4 Qef8 Nbc1 Q8f6 d8N Be8 Nb7 Bg6 e8B Qd8 Na5 Bf6 Nfg1 Kg5 Nab3 Bh5 Na2 Be7 Qgf4+ Kh4 Nf3+ Kh3 Ng6 Kg2 Kb7 Kh1 Qg3 Bh4+
bN1b4/2krrbNN/1q2B2q/4n1p1/3rQNn1/B3B3/Qq1BN2q/3B2K1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 h4 h6 b4 Ne7 Ra3 Nf5 Rf3 gxf3 g4 Nd4 g5 Nf5 g6 Ne7 Rh3 Ng8 Rg3 Bd6 Rg4 Bf8 Rg5 hxg5 Kf2 Kd7 e4 c5 d4 a5 g7 f5 d6 c4 b6 a4 d5 a3 e5 c3 h5 c2 b7 a2 b5 a1Q h6 Qd4+ Be3 c1R b6 Qd3 h7 Qc2+ Ne2 Qb3 Qe1 Rd1 Nbc3 Ra4 Ne4 Qb2 Kg1 Nf6 g8B Nc6 b8Q Ng4 b7 Rad4 Qa8 Be7 Qa2 Qdb6 b8N+ Kd8 d7 Kc7 d8N Bb7 e6 Nce5 Bg2 Ba8 Nf6 R1d2 Bf7 Re8 h8B R2d3 Nh7 f2+ Kh1 f1B Kg1 Bf6 e7 f3 Be6 f4 Bg7 Rd1 Bf8 R1d3 Qeb1 Rd2 Qe4 f2+ Kh1 f3 Bh3 Nh6 Bhg4 Bh3 Bh5 f1Q+ Kh2 Qf2+ Kh1 Qh4 Kg1 Bf5 Bg4 Bg6 Bh5 Bf7 Bhg4 Qa7 d6+ Kb6 d7 Kc7 Bc4 Qab6 Ne6+ Kd6 Bh5 Nhg4 N6f4 Kc7 Be6 f2+ Kg2 Kd6 d8B Qh2+ Kf1 Q6b4 Ba5 Qb6 Bc3 Kc7 Ba5 R2d3 Bad2 Rd7 Bb3 R3d4 Bd1 Bg8 Bf7 Qh6 Be6 Bf7 Kg2 f1Q+ Kg3 Qe1+ Kg2 Qeh4 Kg1 Qh3 Bg7 Rg8 Bf8 Rg7 e8N+ Kc8 Bd6 Bd8 Ba3 Qh2+ Kf1 Rg6 Ng7 Kc7 Bc4 Rgd6 Bcb3 Re7 Be6 Q2h5 Kg2 Rdd7 Kg1 Qh2+
3NK3/Rbk1n1nN/2r1R1R1/q1rbbQN1/N2n4/Q4N2/2QQ3r/n3rr2 w - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 g5 a4 b5 axb5 e4 b3 e3 Qc2 exf2+ Kd1 Ba3 Bh3 Be7 Ba3 Bb4 Kc1 Bf8 Qd1 h6 Bd6 h5 Bf4 gxf4 g5 Na6 Bf5 Nb8 Bg4 hxg4 Kc2 Kd7 Kc3 f1R Kd4 c5+ Ke5 a5 d4 f5 h4 c4 e4 f3 b4 a4 g6 f4 g7 a3 d6 a2 h5 f2 h6 c3 h7 c2 d5 c1N b6 f3 b5 g3 b7 g2 b6 Re1 Nc3 f1R Qc2 f2 Rh6 Ra3 Rg6 Ra7 Na4 Nb3 Nf3 Ne7 Kf6 g1R Kf7 Nc1 g8N Rd1 e5 Qc7 e6+ Kd8 d7 Qc5 Nf6 Nbc6 b8Q Rg4 b7 Nd4 Qg3 Qa5 b8Q Rde1 Qbf4 Bb7 Qff5 Nd3 Qd6 Bg7 Qa3 Re8 h8N Ra6 Nh7 Rc6 Qh5 Rg8 Qf5 Kc7 d8N Rg5 d6+ Kc8 d7+ Kc7 Qf4+ Be5 Qf5 Rg7+ Ke8 Nf4 Nhf7 Nh5 Qf6 Rg2 Nf7g5 Rh2 Qff5 Rc5 Rb1 a1N Rb2 Nec6 e7 Rf7 Rb6 Rf6 Ra6 Rd6 Ra7 Re6 Kf7 Rd6 e8R Ne7 Kf8 Rdc6 Kf7 Rfh1 Kf8 f1B Kf7 Bg2 Kf8 Nc8 Ree6 Rhf1 Ke8 Bh1 Nd2 Bd5 Ndf3 Rg2 Ndf7 Rh2 d8Q+ Kb8 Qd7 Ne7 Nd8 Ne2 Nh3 Bc4 Qdd2 Nd4 Nb2 Kc7 Na4 Bd5 Nh3g5 Ng7+
1R1b4/r1n2RRq/QK2nr1B/2qBk3/5nB1/5bbQ/2R2bBB/q1q4Q w - - 0 1 illegal: No possible last move, all moves rejected
6R1/2N1b1nk/1Q2R2n/5br1/1n2Qp2/q2n2Q1/Q2qbRNQ/brRN2K1 w - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 g5 a4 b5 axb5 e4 b3 e3 Qc2 exf2+ Kd1 Ba3 Bh3 Be7 Ba3 Bb4 Kc1 Bf8 Qd1 h6 Bd6 h5 Bf4 gxf4 g5 Na6 Bf5 Nb8 Bg4 hxg4 d4 f1Q Kd2 f5 h4 Kf7 e4 Kg6 e5 c5 b4 a5 h5+ Kh7 h6 c4 d6 f3 Ke3 f2 d5 g3 b6 a4 e6 a3 b7 g2 d7 c3 e7 a2 e8N c2 d6 c1B+ Qd2 Ra4 b5 Rh4 b6 Nf6 g6+ Kg8 g7 Rh7 Rh2 Qa6 Nf3 f1B Kf2 g1N Ne1 Nf3 Nc7 Ng5 Nc3 Rb4 Kg1 Be7 Ng2 Bb2 Rc1 a1N Nd1 Nc6 b8R Nf7 b7 Be2 Qd4 Qa8 Qe4 Qa3 Ra8 Rb5 b8Q Nb3 Ra6 Nh5 Qa8 f4 Qa7 Qe8 d8Q Nb4 d7 Nc5 Re6 Ncd3 Qf2 Rg5 Qg3 Qf8 Qe8 Bbf6 d8Q Ba1 Qa4 Qb2 Qdd4 Qd2 Qa2 Bd7 Qf6 Qa8 Qfd4 Qa3 Qb6 Rh8 Nge3 Rh7 Rf2 Bc8 Ng2 Rh8 Rf6 Bf5 Re6 Kh7 g8R Ng7 Rd8 Rg8 Re8 Kh8 h7 Nh6 Rd8 Nh5 Re8 Kg7 Ra8 Rb8 h8Q+ Kf7 Qe8+ Kg7 Qa5 Kh7 Qf7+ Ng7 Qh5 Rb6 Rg8 Nd5 Qhh2 Rb1 Qb6 N5b4
kB1r2qq/1rqBnQ2/2Q3B1/pRQ3bn/2n1p3/3p2B1/2bQ1RB1/2RK4 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 g4 Bb7 f5 Ba6 Nc3 Bc8 Nh3 h6 Nf4 gxf4 Ne4 h5 g5 Qb6 Nf2 Qd8 Ng4 hxg4 c4 a5 b4 d5 h4 Kd7 f7 Kc7 c5 Kb7 f6 e5 b6 e4 b5 g3 h5 g2 h6 g1N g6 d3 g7 f3 h7 d4 Ra2 Be7 f8Q Bd7 f7 Nh3 Qd2 f2+ Kd1 Qe8 Bg2 Ra7 c6+ Ka8 c7 Nc6 c8B Bg5 Qc5 Rb7 f8Q Ne5 Qf7 Be6 Bd7 Ne7 g8B Nf4 Qc6 Nc4 Ba3 Ne5 Bd6 Nc4 Qc5 Nh5 Bg3 Qf8 Re1 f1Q Rc2 Nc6 Rc1 Qf4 Rf1 Ne7 Rf2 Ne5 Qc6 Ba2 Qc5 Bb1 Qc6 Nc4 Qc5 Rc7 b7+ Kb8 Qc6 Ka7 b8R Rb7 Bf1 Qc7 Bg2 Qfd8 b6+ Ka6 Qb4 d2 Qbc5 Qdc8 Qff5 Qf8 Bf7 Qg7 Qff6 Rd8 h8Q Qg8 Qhg7 Qh8 Bg6 Qg8 Qf4 Qh8 Ke2 Qg8 Qgf7 d3+ Kf1 Qh8 Qfe3 d1Q+ Qe1 Qb3 Qd2 Qbc3 Ke1 Qcg7 Kd1 Qgg8 Q6d5 Ra7 b7 Nc6 Rc8 Ne7 b8B Rb7 Qde6+ Rb6 Qef6 Kb7 Qfd6 Ka8 Qcc6+ Rb7 Qdc5 Rf8 Re8 Nc8 Re5 Rd8 Qcb4 Ne7 Rb5 Rf8 Qa3 Rd8 Qac5 Bc2+
3RQ2Q/3R2p1/b2bn1qr/2r1pNNN/4Q3/2bR1Q2/3rR1p1/k1Kq1n1R w - - 0 1 legal: proof: d4 b5 c4 e5 a4 h5 axb5 d5 cxd5 Ke7 g4 hxg4 d6+ Ke8 e4 Kd7 Be3 Qe7 Bc4 Rh4 Be6+ Kd8 d5 Rh8 Bd4 exd4 e5 Qg5 Bf5 Ke8 e6 Qd8 e7 Rh3 Be6 fxe6 Qc2 Kd7 Qd1 Rh8 Kd2 c5 e8R a5 f4 a4 h4 a3 b4 d3 h5 g3 b6 g2 f5 c4 b7 a2 b5 c3+ Kc1 c2 h6 Qh4 b6 Qe4 h7 Ne7 f6 Qe2 f7 Qe3+ Nd2 Qh3 Ne4 Nbc6 b8Q Ba6 b7 Qh5 Ne2 Qg6 Qe1 Nd4 Nf4 Nef5 Ng5 Ng3 Nh5 Nf1 Qe4 Ra7 Rb1 a1B Rb3 Bc3 Ra3 Be7 f8Q Ra8 Qff3 e5 Rc8 Rd8 h8Q Ne6 Rc5 Ra7 Qa8 Bf8 b8R Rc7 Rb2 Rc6 Rc4 Be7 Rd4 Rc5 Qh7 Rh8 Qhg8 Rh6 Qh8 Bf8 Qc6+ Kd8 d7 Ke7 Qa8 Kd6 d8R+ Ke7 Rc8 Bb4 d6+ Kd7 Rba2 d2+ Kb2 c1R Rad3 d1Q Re8 Be1 Rd5 R1c4 Qd8+ Kc6 d7 Kb5 Qb8+ Bb7 d8N Kb4 Rd7 Bd6 Qc8 Ba6 Nc6+ Kb5 Nd4+ Kb4 Nf5 Rd4 Re3 Qe2+ Kb1 Bc3 Kc1 Kb3 Qd8 Qd3 Rae2 Rdd5 Rg8 Qd4 Rf8 Qa4 Re8 Rd2 Rd3 Ka2 Qe7 Qb3 Red8 Ka1 Qee8 Qd1#
R5B1/qB3R2/4N1K1/r1B3B1/1n2Rb1p/1kq2B1B/3bp2n/bbRnr2R w - - 0 1 legal: proof: d4 b5 h4 g5 g4 c5 dxc5 f5 a4 h6 axb5 Bb7 e4 fxe4 Nd2 Ba6 Ndf3 Bc8 h5 Bb7 Nh4 Ba6 Qd5 gxh4 g5 Bb7 g6 Bc8 Qg5 hxg5 Kd2 e5 Ke3 Ke7 b4 Ke6 f4 Kd5 c4+ Ke6 b6 d5 b5 a5 f5+ Kd7 g7 g4 c6+ Kd6 c7 Kc5 f6 Kb4 h6 g3 f7 g2 h7 a4 b7 a3 b6 a2 c5 Nh6 g8B Bd6 f8R Ra5 c6 Qf6 Ne2 Bf5 c8B Na6 b8R Kb3 c7 Nb4 b7 Bg6 Ra8 g1Q+ Kd2 Bf5 b8B Ng4 Bb7 Qa7 c8B Nh2 Rf7 d4 Nf4 d3 Bg2 Qg7 Ne6 e3+ Ke1 e2 Kd2 e4 Bf3 Bg3 Bd6 Qe5 Bc5 e1B+ Ke3 d2 Bd7 Qc7 Kd4 d1N Bg5 e3 Rc1 Bd2 Re8 Bf4 Ree7 Bh3 Ke4 a1B Re8 Bf1 Kf5 Qe5+ Kg6 Qc3 Ng7 Bb5 Bh3 Bd3+ Re4 Bb1 Ne6 e2 Re7 Nf2 Bf7 Rf8 h8R Rd8 Bg8 Nd1 Rf7 Nb2 Bh7 Be1 Nf8 Rd1 Ne6 Bed2 Ra8 Re1 Bg8 Nd1
2n1b1BK/1B3bb1/5BN1/3Nr1B1/pb1Q1Nk1/1p1NBN1p/rq1n1p2/7N w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 e5 c4 exf4 cxd5 Nc6 b5 Nb8 g4 b6 a4 Ne7 Rh3 Nbc6 Rb3 Nb8 Rb4 axb4 a5 Ng8 a6 Qd7 Ra4 Qd8 Ra5 bxa5 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 d4 h4 e4 a4 g6 h3 a7 f3 g5 c4 b6 b3 b7 c3 g7 f4 g6 c2 d6 f2 d5 f3 Qd4 Nf6 g8B Na6 b8N+ Ke8 g7 Qd7 Bg2 f1B Nd2 f2 Ngf3 Qf7 d7+ Ke7 d8B+ Ke8 d6 Nh7 Bg5 Nb4 Nd7 Bb7 Nc5 Qc4 Nd3 Nf6 d7+ Ke7 Be3 Re8 a8N Nbd5 Nc7 Rh4 Ne6 Nb6 Nef4 Bd5 d8B+ Kd7+ Kf5 Rh5+ Kg6 Bb4 e5 Ne4 Bf6 Nc8 e6+ Kd6 e7 Re5 Kh7 Qc3 Kh8 Qb2 Bh1 Be2 Nf1 Nd2 Ng3 Kd7 Ng1 Bh5 Nf3 Rd8 Bg2 Be8 Nh1 Kd6 Qc3 Bdf7 Qc4 Bb5 e8N+ Kd7 Nc7 Kd6 Ng6 Bbe8 Nd5 Ke6 N5f4+ Kf5 Qd4 Rd7 Ng5 Kg4 Bb7 Ne4 Bcd2 c1B Nf3 Rd6 Bh7 Rde6 g8N Rc6 N8e7 Rc2 Bc3 Nd2 Bg8 Qa1 Ned5 Ra2 Bg5 Bca3 Nge7 Qb2 Neg6 Bf8 Ba5 Bab4 Bad8 Bh6 Bdf6 Bg7+
5Nbb/rQnN2k1/2N1qq2/Np1b3n/3RN2K/2q1B2Q/1r2n2N/N5bN w - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 h6 a4 Nc6 f5 Nb8 Bh3 Ra6 Ra3 Ra8 Rf3 h5 Rf4 gxf4 g5 Be6 Bg4 hxg4 Kf1 Bd7 Ke1 Bc8 Kf2 Kf7 d4 e5 h4 b5 d6 c5 h5 c4 h6 f3 Kg3 e4 h7 b3 g6+ Ke8 a5 e3 a6 b2 g7 Kf7 d5 e2 a7 e1N d7 f2 d6 f1B Qb3 Bd3 Be3 Qc7 d8N+ Ke8 Kh4 c3 Ne2 c2 Nb7 c1Q Na5 g3 Na3 b1Q Nc2 g2 Na1 g1B Ng3 Bc4 d7+ Kf7 d8N+ Ke8 Rh2 Bd5 Ndc6 Kf7 Nh1 Qa2 Rd2 Qcb2 Rd4 Nd3 Qc3 Nc1 Qa3 Ne7 g8N Bg7 Nh6+ Kf8 f7 Bce6 Ng4 Ne2 Qb3 Nd7 Nh2 Nf6 Qa3 Rg8 h8N Nh5 Qb3 Be5 Qc3 Kg7 f8N Qb6 Nd7 Qaa3 Qd3 Qac3 Nf7 Rgc8 Ng5 Bg8 Ne4 Qa6 Ncb8 Qe6 Nbc6 Rc7 Nf1 Rd8 a8Q Ra7 Nh2 Rc8 Qb7 Rca8 N5b3 Ra2 Nba5 Ra7 Bg5 Bf6 Qh3 Be5 N1b3 Qa1 Be3 Rb2 f6+ Kh7 f7 Bh8 f8N+ Kg7 Ng5 Qf1 Na1 Qff6 Rf4 Bb3 Rd4 Nd5 Nb6+ Nc7 Nbd7 Qfe5 Ne4 Bd5 Ndf6 Q5f5 N6d7 Qff6+
R3N3/1qQ2r1K/r2bN3/1QQ2rRp/6R1/b2RR3/k1pp1pqQ/1n4R1 w - - 0 1 legal: proof: b4 c5 c4 e5 a4 b5 axb5 d6 f4 exf4 d4 Nc6 b6 Rb8 b5 Bd7 b7 Ra8 b6 Nb8 Ra5 Bc6 Ra1 Bb5 cxb5 c4 g4 h5 Be3 h4 Bf2 Nd7 Bg3 Nc5 dxc5 Rc8 Nh3 Rb8 Ng1 Ra8 g5 hxg3 h4 g6 h5 Qb8 h6 Be7 Bh3 Qd8 Bg4 Bf8 Bh5 gxh5 Kd2 Ke7 b8Q Ke6 e4 a5 h7 f5 c6 g2 b7 a4 c7 c3+ Kd3 d5 c8Q+ Qd7 e5 f3 b6 f4 g6 f2 g7 f1R Nh3 g1B Qb3 c2 Nd2 f3 Ng5+ Ke7 e6 d4 Ke4 f2 Kf5 a3 Kg6 d3 Rh3 a2 Nc4 d2 Nd6 Ra7 Rd3 Nf6 g8R Ne4 Qb5 Bh2 Rd1 a1Q Qcc6 Bg7 Qcc5 Bb2 Kh6 Kf6 e7 Nc3 e8R Be5 Rg7 Rf8 h8R Rg1 Qbc8 Ra6 b8Q Ba3 b7 Rf7 Kh7 Qc1 Re7 Nb1 Rg8 Rg3 Re1 Rf3 Rg1 Qf1 Ne8+ Kf5 Qbd6 Qg2 b8R Rf4 Q8c6 Qb7 Qcc7 Rf3 Ra8 Kf4 Rd4+ Ke3 Rd3+ Ke2 Re6 R3f5 Re7 Qf1 Re6 Kd1 Re7 Bg3 Ree3 Kc1 Ne6 Bh2 Qf4 Bg3 Qh4 Be5 Qh2 Bd6 Qa4 Kb2 Qac4 R7f6 Q4b5+ Ka2 R7g4 Qfg2 R8g5 Rf7+
1Q1R1qqq/q2Rr1b1/2RK3q/4R1p1/4Rp2/Q2Rn1r1/RB2bk2/1R1B1n2 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 b5 axb5 h6 Nh3 f3 Nf4 Bb4 Nc3 Bc5 Ne4 gxf4 g5 Bb4 g6 Bf8 Ng5 hxg5 Kf2 Kd7 e4 Kd6 b4 Ke5 d4+ Kf6 h4 c5 e5+ Kf5 d6 Kg4 e6 a5 d7 f5 h5 c4 h6 a4 h7 c3 b6 a3 b7 c2 g7 a2 e7 Qe8 d8R Nd7 b8Q Nb6 b5 Nh6 g8R Ba6 d5 Ra7 d6 Nc4 d7 Ne3 b6 Bg7 b7 Be2 Bb2 c1Q Qa4 Qc5 Rh3 Qf8 Re1 a1Q e8R Qd4 Bg2 Nf1+ Re3 Qd5 Qa3 Qfd6 Rge8 Qg8 Rb1 Qa6 Rg3+ Kh4 R8e5 Ng4+ Ke1 Qc6 R3e4 Nge3 Kf2 Qh6 Rc8 Qaa2 d8R Qaf7 Rd7 Qa2 Kg1 f2+ Kh1 Qaf7 Bf3 Qfe8 Bg4 f3 Rc6 f4 Rg2 Qef8 Rh2+ Kg3 Rbd1 Qc4 R1d3 Qa6 Qbd6 Qa4 b8R Rb7 Rbd8 Qa7 Qb8 Rc7 R7d5 Re7 R5d7 Qff6 Bh5 Rhe8 h8R Qf8 Rdc8 Rd8 Rc1 Rde8 Rb1 Rd8 Rcc3 Rc8 Rc2 Rc3 Bg4 Rb3 Rc6 Bd1 Qab4 Nd2 Red4 Nf5 Rde3 Qc8 Rg6 Qh7 Rc6 Rd3 Rf8 Qg8 Qa3 Qe8 R4d5 Qef7 Re8 Qff8 Red8 Rc3 Re1 Rb3 Bd4 f1Q+ Bg1 Qh3 Bd4 Re3 Bc3 Qhh8 Rd3 f2 Bh5 Bg4 Ba1 Bh3 Bd1 Bg4 Re2 Bh5 Rg2+ Kf3 Kh2 f1Q Kh3 Qf2 Bc3 Nf1 Ra2+ Qe2 Bb2 Qc7 Rh2 Qd6 Rg2 Qdh6 Rg3+ Kf2 R3d4 Qd2 Rde4 Rb3 Rgc3 Qd4 Rce3 Bf7+ Kg4 Qa7 Rh3 Bc4 Rg3 Nh4 Rge3 Ng2 Rh3 Bf6 Kf5 Be2 Rhe3 Rf7 Ke6 Re7+ Kd6 Rd3+ Rd4 Rc3 R3e4 Rg3 Rdd5 Nge3 Rd3 Bg7+
3B1Q2/2Qpn3/NnR3bP/1r2KR1b/Q1NR4/r4N1p/1q2k1B1/4q2n w - - 0 1 legal: proof: b4 b5 e4 a5 d4 f5 exf5 c5 c3 cxd4 a4 axb4 axb5 Ra7 Bc4 Ra2 Bf1 Ra8 h4 bxc3 g3 g5 hxg5 h5 Qd2 Ra4 Qd1 Ra8 g6 h4 Qb3 h3 Qd1 Bh6 Bd2 Bg5 Bc1 Bh4 gxh4 Ba6 Bg5 Bb7 Bc1 Bc8 Ke2 e5 Kd3 Ke7 Ke4 Kf6 f4 c2 b6 d3 b7 d2 g7 Ra3 h5 Rh7 Nf3 Qb6 Bg2 Ne7 g8Q Na6 b8N Nc7 Na6 Ncd5 Qd8 Bb7 Qc7 Qb2 h6 Rg7 Re1 Rg5 Re3 Ba8 Rd3 Nb6+ Rd5 Bc6 Ra2 Ba4 Rd4 Bb3 Ra1 Bf7 Ra2 Bg6 Ra1 Ra5 Na3 Rh5 Nc4 Ra3 Qe1 d1B Qa5 Be2 Qa4 Rg5 Bd2 c1N Ba5 Nd3 Rc1 Bd1 Ke3 e4 Rc2 Kf7 f6 Ke6 f7 Kf5 f8Q+ Kg4 f5 Nf2+ Rc3 Be2 f6 Nh1 f7 Bd1 Ne1 Rb5 Nf3 Kh5 Kf4 e3 Rc2 e2 Rc1 Rbb3 Ke5 e1Q+ Ne3 Be2 Rc6 Rb4 Nc4 Rbb3 Bd2 Rb4 Bf4 Kg4 Bg5+ Kg3 Bf6 Kf2 Bg5 Ng8 Bd8 Ne7 Qe8 Rbb3 f8R Rb4 Rf5 Rb5+ Kf4 Bd1 Qf8 Be2 Ng1 Beh5 Nf3 Ke2 Ke4 Rbb3 Ke5 Rb5+
q7/3B1Bbn/R1QBP3/2r5/n2q2qN/n3r3/2NqrKRQ/1k2N1Qb w - - 0 1 illegal: No possible last move
1n1nrQB1/2R3n1/rk2NP2/2r1N2N/1nB2B2/1rQ2pnK/1r2Q2R/3b4 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e3 c5 e4 b5 axb5 axb4 Bh6 cxd4 Be3 Qc7 Bc1 Qd8 Bb2 e5 Qd3 b3 Qe2 Qg5 Bc3 Bh6 Qd1 Qg4 Bd2 Be3 Bc1 f4 Ra2 Qf5 exf5 e4 Ke2 Bd2 Ra5 e3 Kd3 e2 Ra1 Be3 fxe3 Ra3 Kd2 Ra8 Ke1 Kd8 Kf2 Kc7 c4 e1N g4 d5 c5 h5 e4 h3 f6 h4 g5 b2 g6 h2 g7 d3 e5 d4 c6 h3 e6 d2 e7 d3 e8Q Bg4 Be2 Nh6 g8B Nf7 Ra7+ Kb6 c7 Nc2 c8Q Nb4 Rc7 Ra6 Na3 b1R Nc2 Nd8 Nd4 Rb2 Qf8 Rb3 Qc2 d1R Ne6 d2 Bc4 Rh5 Qa2 Re1 Ne2 d1R Ng3 Rc5 Qe2 Rd2 Nh5 Rdb2 Be3 f3 Kg3 Bf5 Bf4 Bc2 Rf1 Bd1 Rf2 h1N+ Kh2 Ka5 b6 Ng3 b7 Nf5 Rg2 Kb6 Rf2 Nb8c6 b8N Ng7 Kg3 h2 Kh3 h1N Rh2 Ng3 Nd7+ Ka5 Ne5 Kb6 Qd7 Nb8 Qdd2 Rf1 Qc3 Rf2 Qe4 Rfd2 Qee3 Rd7 Qee1 Re7 Qe2 Re8
B1N2b2/n1k2b2/RR3rPb/1R4Bn/K1b3n1/3b2nB/2QN3p/N4b1Q w - - 0 1 legal: proof: b4 a5 h4 b5 f4 c5 a4 e5 axb5 exf4 d4 cxd4 b6 g5 b5 Ra6 bxa6 gxh4 Be3 Qc7 Bc1 Qb7 axb7 Bc5 Qd2 Be7 Qd1 Bf8 Kd2 Kd8 c4 d5 Kc2 f5 Kb3 h5 e4 h3 g4 f3 e5 d3 c5 f2 c6 f4 g5 a4+ Ka2 h2 g6 f3 e6 d4 Bb2 h4 Qb3 h3 Qa3 d2 Be2 d1B Qc3 f1B Qc2 f2 Nd2 a3 Kb3 a2 Ngf3 d3 Nd4 Nf6 Bf3 Bde2 Ka4 Nh5 N4b3 Rh7 Bg4 Rf7 Bc1 Rf6 Rb1 Bd7 Na1 Be8 Rb5 Bf7 Rg1 h1N c7+ Ke8 c8N Kd8 Bf3 Nc6 b8R h2 b7 N1g3 e7+ Kc7 e8B Bh6 Bd7 Bf8 Nc4 d2 Bh3 d1N Bg5 Ne3 Nd2 Bd3 Ra8 Bh6 Ra6 Ng4 Bd5 Bfe2 Rgb1 f1B Rbb6 Bc4 R1b5 Bed3 Bdg2 Na7 b8Q+ Kd8 Qa8 Kc7 Qf3 Bf8 Qfd1 Bh6 Ba8 Bf8 Nab3 a1B Qe1 Be5 Na1 Bed6 Qe4 Bh6 Qh1 Bdf8
1r3N2/1BQN4/3Qb1pn/Q1KN1R1b/1n2R3/Bq1b1Pb1/2p2B2/5krn w - - 0 1 legal: proof: e4 h5 g4 hxg4 c4 e5 d4 f5 exf5 b5 a4 d5 cxd5 exd4 axb5 a5 b4 axb4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 h5 c5 b6 d3 h6 g6 f6 d2 d6 b3 h7 g3 b7 b2 d7 g2 f7 Nh6 Ra2 Qb6 d8Q Nc6 b8Q Nb4 Ra4 Bd6 f8N Bg3 Nf3 g1N Qbc7 Nh3 Ne5 Rb8 Nc3+ Kf4 Qe1 b1B Ba3 d1B Bg2 Bh5 Bb7 Be6+ Qd5 Bbf5 f3 Nf2 Qa1 Ke3 Ned7 Bc2 Ra5 Bcf5 Rh4 Nh1 Re4+ Kf2 Qa2+ Kf1 Qh2 Rg8 h8B Rg7 Qd2 Re7 Bd4 Ree8 Bf2 Rec8 Kb3 c4+ Ka4 Re8 Qdd6 Rec8 Nd5 c3 Qg5 c2 Kb3 Re8 Kc4 Qe3 Qgd8 Qb3+ Kc5 Re7 Re3 Bd3 Re4 Rf7 Rb5 Rf4 Qa5 Rg4 Q8c7 Bh4 Re5 Rg1 Rf5 Nc6 Rb4 Bg3 Re4 Nb4
2r1q1B1/Rqn1R2p/b1n1Q2Q/4bP2/p2k2B1/n2rN2Q/3N3n/2N2RK1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 Nh6 c4 Ng8 cxd5 Bb7 Bc4 Ba6 Bf1 Bc8 b4 gxh4 b6 Bb7 b5 Bc8 b7 Bh6 Rh3 Bg7 Rh1 Bf8 b6 Bxb7 Ba3 Bc8 b7 a6 Bc5 a5 Ba7 Nc6 Bb8 Nxb8 d4 Kf7 f4 Kf6 Kf2 c5 g4 e5 d6 e4 d5 h3 g5+ Kf7 f6 c4 d7 c3 f5 c2 d6 c1N Qd3 h2 Be2 Na2 Nd2 Nb4 Qh3 Nd5 Bg4 Ra6 Ne2 Bg7 Nc1 Qe8 d8Q Nc7 d7 Rd6 Rf1 Nc6 b8N h1Q Na6 Nh6 Nb4 Ba6 Nc2 Rd3 Qc8 a4 d8R Qf3+ Kg1 e3 Re1 e2 Ne3 Qfe4 Rd7+ Q4e7 Rf1 e1N Ra3 Nc2 g6+ Kg8 Ra1 Na3 f7+ Kf8 Rb1 Be5 Rb7 Kg7 Ra7 Kf6 g7 Qb4 g8B Qb7 Bh5 Ng4 Re7 Nh2 f8Q+ Kg5 Bf3 Kf4 Qe6 Qd7 Ndc4 Qe8 Bg4+ Ke4 Nd2+ Kd4 Qfh6 Qg6 Bf7 Rc8 Bg8 Qe8
1b5n/b3b3/k1pqrPN1/BN1p1N2/K1r3B1/7Q/RQ2rRbr/R4B2 w - - 0 1 legal: proof: d4 g5 e4 f5 exf5 a5 h4 gxh4 c4 a4 d5 c6 d6 Na6 b4 b5 a3 Nc7 dxc7 bxc4 b5 c3 Qxa4 Ra7 Qg4 Rxa3 Qd1 Ra8 f4 h5 g4 e5 b6 d5 b7 Kd7 b8Q e4 f6 c2 Kd2 h3 Kc3 e3 Kb3 e2 f5 e1B g5 h2 f7 h4 f6 h3 g6 Rh4 g7 Ra2 Qd4 Bf2 Na3 Ne7 g8N Ng6 Qba7 Be7 f8R Nh8 Bd2 c1B Ba5 Re2 Nf3 Bf4 Nh6 B4g3 Qb2 Rc4 Rg1 h1R Nh4 h2 Rg2 Ba6 Qe3 Kc8 Nb5 Kb7 N6f5 Qd6 Qd3 Ba7 Ng6 Rg1 Rf2 h1R Rg8 Rh2 Ra8 Re6 Qe3 Bf4 Qh3 Rgg2 Bb4 Kb6 c8B Be5 Ka4 Bg3 Rf3 Rge2 Bd7 Bc8 Rf2 Ka6 Nfh4 R6e3 Bg4 Bf5 Ra2 Be4 Nf5 Bg2 Ra1 Re6 Ra2 Rc1 Ba5 Rc4+ Kb3 Qd7 Bd8+ Kb7 Ra4 Bb6 Ra1 Bb8 R8a2 Qd6 Bc7 B6a7 Ba5 Rc1 Ka4 Ka6 Qe3 Rc5 Qh3 Rc4+
Q4N1k/1R1b4/2Rpn2N/3P1bb1/nr2b2p/6n1/3Rp3/KQQ1BBqN w - - 0 1 legal: proof: b4 a5 h4 f5 e4 fxe4 a4 b5 axb5 g5 c4 gxh4 Rxa5 c5 Ra1 cxb4 c5 Ra3 Bxa3 Na6 Bc1 Nb8 g4 Kf7 d4 Kg7 Kd2 h5 Kc2 e5 Kb2 b3 f4 h3 d5 e3 b6 d6 f5 h4 c6 e4 c7 e2 g5 e1N f6+ Kh7 f7 h2 b7 e3 g6+ Kg7 Nf3 e2 Ra2 Nh6 Ng5 Bh3 c8R Be7 f8N Na6 b8Q Nc2 Rc6 Bd7 Bd2 Nf5 Nc3 Nc5 Nce4 Qb6 Ng3 Ncd4 Be1 Nde6 Qc1 Na4+ Ka1 Qg1 Nf7 Bg5 Rd2 Rg8 Nh6 Kh8 Qb4 Rg7 Qe4 Rf7 Qeb1 Rh7 Ne4 Ng3 Nf2 Rf7 Nd1 Rf4 Nf2 Qg2 Rg1 Rb4 Nh1 Qf2 Rg2 Qg1 Rf2 Nb6 Rf7 Na4 Nf2 h1B Rg7 Be4 Nh1 Bc8 Rb7 Bd7 Ng4 Kg8 g7 b2+ Ka2 Kf7 Nh6+ Kf6 g8Q Bf5 Qd3 b1B+ Ka1 Bc2 Qb3 Bce4 Qbb1 Qh2 Ng6 Qg1 Qa8 Kg7 Nf8 Kh8
5r1q/1N1KQ2P/1pb1r3/3p1B1k/prRpN2q/bB4Q1/1q2R1R1/1N5B w - - 0 1 illegal: No possible last move, all moves rejected
1b6/R1N3NQ/qbk2KQ1/Bnb5/3Pr1qR/2qn4/rn1qR3/qN2Q2B w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 e4 Kd7 Ke2 a5 Ke3 c5 Kf4 h5 Kf5 h4 b4 a4 g5 c3 d3 h3 b6 h2 g6 c4 e5 c2 g7 a3 b7 a2 e6+ Kc6 e7 c3 e8N Bd6 Bf4 c1Q Qb3 c2 Nd2 Na6 b8Q Nc5 Ngf3 g1B Be2 g2 Rb1 a1Q Ng5 Nf6 g8Q Nd5 Rb2 Nc7 Qg6 Na4 Qa7 Nb5 Qc3+ Bc5 Ne6 g1B N6g7 Rh4 Nc7 f6 Be5 Re4 Nb1 Qf4+ Ke6 c1N Bf3 f5 Qe1 Qg4 Re2 f4+ Kf7 Qdg5 Bc3 Nb2 Bd2 Qd5+ Kf6 Bgf2 Bg2 f3 Bc3 Bb6 Bd2 Bfc5 d4 f2 Bf3 f1Q Bc3 Ncd3 Bd2 Nc3 b5+ Kd7 Qb7 Ra2 Qa7 Qb3 Qb7 Ba7 b6 Nb5 Ba5 Bb8 Qa7 Kc6 b7 Bb6 Qh7 Qc4 Qa6 Qfh3 Bg2 Bc5 Bf3 Ba7 b8R Qc3 Rd8 Qhg2 Ra8 Bb8 Ra7 Qf2 Rg1 Qe3 Bh1 Qed2 Rg3 Nc4 Rh3 Ncb2 Bg2 h1Q Rh4 Qg1 Bh1 Qh2 Qc8 Qhh3 Qcg8 Qc8 Qg6 Qa6 Q8h7 Qg4
2q1Nr1q/r1nQ2R1/2P1Q2n/rNr2Q1r/1R3q2/b3KR1B/4n1B1/2kb2N1 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Ke2 a5 h4 e5 b4 Ke7 c4 Kd6 f6 a4 h5 f3+ Kd2 f2 b6 g4 b7 d3 g7 a3 h6 a2 c5+ Kd5 c6 Kd4 b5 d5 h7 g3 b6 e4 f7 e3+ Kc1 e2 Kd2 e1Q+ Kc1 Ke3 Nf3 g2 Nbd2 g1N Bh3 f1Q Rb1 a1R Ne4 d4 Nc3 Nh6 g8B R1a7 Rb4 Na6 b8Q Qeh4 b7 Bg4 Qc8 Nc7 Qf5 Qc8 b8Q d2+ Kc2 Ne2 Rg1 Ra5 Nb5 R8a7 Bg2 Be7 f8R Bd6 Qe1 d1R Be6 Qhd8 Rf6 Rf8 h8N Qf2 Nf7 d3+ Kb3 d2 Kc2 Rda1 Qb7 d1R Bd7 Bc5 Nfd6 Rd5 Ne8 Qg3 Rf7 Qf4 Rg7 Rad1 Rf1 Bd6 Ng1 Rc5+ Qc3+ Rd3 Qc4 Rdd5 Rf2 Re5 Kd1 Bh5 Qce6 Bf3 Ke1 Bh5 Kf1 Kd2 Rf3 Kc1 Kf2 Bg4 Qff6 Rh5 Qff5 Qh2 Ke3 Qf6 Re7 Qh8 Rg7 Qf4+ Kd3 Be5 Rh3 Rf6 Qh7 Nd5 Qe7 Be6 Rf3 Bb2 Qg6 Bf7 Bdh3 Ba3 Qbd7 Nc7 Qgf5 Bb3 Qde6 Bd1 Q7d7 Qh2 Ke4 Rf8 Ke3 Qf4+
r6R/1K3Nkq/3rn2b/1NnR3n/3r1BB1/1Bb1Q3/N2Pq3/br1nQR2 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 b4 a5 e4 f5 Ke2 Kf7 Ke3 h5 b6 c5 g5 f4+ Kf3 c3 e5 h4 Ke4 c2 g6+ Kg7 e6 c4 b5 a4 b7 c3 b6 a3 e7 a2 e8R f3 Re6 f2 Re5 h3 Re8 h2 Re5 Nd7 Kd5 Qc7 b8Q Rh6 b7 Nc5 Qe8 Ne6 Ba3 c1N b8N c2 Qe1 Nd3 Nh3 g1R Nc3 c1R Na6 g2 Nb4 Rb1 Ng5 Ndc5 Be2 f1Q Bg4 Qe2 Nf7 Qa7 Kc6 Nf6 Nb5 Nh5 Bb2 Rf1 Ba3 g1B Rd5 Bd4 Bb2 Bf6 Be5 Rf4 Bc7 Rd4 Bf4 Be5 Rf1 h1N Qe7 Kg8 g7 Nf2 Rh1 Kh7 g8B+ Kg7 Rf1 Rg6 Qg5 Bf6 Qe5 Nd1 Qe3 Rb3 Rc1 a1B Na2 Rb1 Rc3 Ra4 Rc4 Bfc3 Re4 Rd4 Ree5 Ng3 Rh5 Rf6 Rh8 Nh5 Ne5 Qf7 Kb6 Qg6 Nf7 Qh7 Kc6 Kg6 Kb6 Bh6 Kc6 Kg7 Kb6 Na4+ Kb7 Nac5+ Kc6 Qh2 Rd7 Nc7+ Nfd6+ Kg6 Bb3 Qe2 Rdd8 Kg7 Kb6 N7e6 Nf7 Ng5+ Kc7 Re6 Rd5 Rd6 Q3g3 Na6+ Kb7 Ne6 Qe3 Nac5+
1Q2bR2/5rRN/NK1Pb2R/2N5/1q4nn/rrn2r1b/2q3QQ/1n1Bk1B1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Ra4 Be7 Ra5 g4 Ra1 Bg5 hxg5 fxg3 e4 Ke7 Ke2 Kd6 Ke3 Kc5 d4+ Kb4 b6 c5 d5 a5 b7 f5 g6 h5 b3 c3 g7 g2 d6 f4+ Kd3 c2 e5 f3 e6 f2 e7 g3 e8R a4 Ke3 h4 Ra2 h3 Kd3 c4+ Kd4 c3 Re7 h2 Qh5 a3 Re2 Qb6+ Kd5 Ra7 Re5 Nd7 b8N Nc5 Ne2 g1R Bg2 f1B Bg5 c1Q Re3 c2 Bf3 g2 Bh6 Na4 Nd4 Be6+ Ke5 Nf6 Nd2 Rf8 g8Q Qb7 Re1 Kc3 b4 Qb1 b5 c1N b6 Nb3 Ra1 a2 Na6 Qc2 Be3 Qb8 Rab1 a1R b7 Ra3 Ne4+ Kd3 Rbc1 Nd2 Ng5 Nb1 Nh7 Kc3 Bf2 Kd2 Re3 Bb5 Rf1 Bc6 Bd1 Be8 Rfe1 Rf1 Rf3 Rg1 Re4 Re1 Rg1 h1B Qh2 Ree3 Qg7 Bh3 Ne6 Reb3 Kd4 Nac3 Kc5 Qc1 Rg3 Qc2 Rf1 g1N Rh4 Nf3 Rh6 Nh4 Bg1+ B1g2 Rf2+ Ke1 Qg4 Bgc6 Qf3 Bb5 Rg7 Ng4 Qfg2 Bc4 Rff7 Qd8 b8Q Qa5+ Qb5 Qa4 Qb8 Rd7 Rf2 Qb4+ Kc6 Rf4 Nec5 Be6 Rf3 Rc4 Rf8 Rf4 Rg5 Rf3 Rg7 Nb5 Kb6 Rc7 Qa8 Rcf7 Qb8 N5c3+
1qNq2rb/3N1N1K/4P3/1RB1bbr1/1b2b3/5b2/nb2Q3/1QBQrRBk w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Nc6 Kd2 Nce7 Ke1 Nf5 gxf5 Qe7 Bg4 hxg4 Kf2 Qf6 Ke1 Qd8 Kf2 Ke7 b4 Kd6 e4 Ke5 c4 a5 h4 g5 b6 d5 f6 g3+ Kf1 d3 f7 d4 b5 g4 h5 f2 Kg2 f1R b7 d2 b8N d3 c5 a4 c6 a3 h6 a2 c7 Bf5 c8Q Re1 h7 Ra5 b6 Ne7 b7 Rg8 Qe2 d1B Be3 d2 Qc6 Nd5 Rh5 Nc3 Qa4 Bb4 f8B Bc2 Na3 d1B Bc1 Rb5 Rb1 a1B Bc5 Bb2 Nh3 Na2 Ng5 Bd3 Bg1 Rc5 Nb5 f3+ Kh1 f2 Kg2 B3c2 Na7 Kd4 e5 Bce4+ Qf3 Be2 h8B Kd5 e6 f1Q+ Kh1 g2+ Kh2 Bd1 Kg3 Qb5 Kf4 g3 Nc8 Qbe8 Qg4 Bdf3 Nf7 Ra5 Bc5 g1B Bhd4 g2 Qd1 Qf8 Nd7 Bh2+ Qg3 g1B b8Q Bf2 Qb5 Qfe8 Qbe2 Bfg1 Ba7 Bf2 Bdc5+ Bfd4 Bab6 Bg1 Rh1 Bh2 Rf1 Qf8 Qdc2 Bh8 Qcd1+ Bd3 Bg1 Rb5 Bbc5 Qd6+ Ke3 Qb8 Qg7 Ra5 Qc3 B2e5 Qcc2 Ba1 Rb3 Bac3 Qb1 Bb2 Ra3 Rb5 Ra6 B5e4 Rb6 Ra5 Rb5 Bf5 Bd2 Bde4 Bc1+ Bd2+ Kf2 Beg7 Na7 B5g4 Nde5 Bc2 Kg3 Bh1 Bce3+ Ke4 Rb6 Bb4 Nc8 Bh5 Kh3 Bf6 Nd7 Rag5 Kh4 Bfe5 Rb5 Bg2 Rc5 Bh3 Rb5 Bf5 Qed2 Be2 Bef2 Kf3 Bc5+ Kg2 Qe3 Rg4+ Kh5 Kh1 Kh6 Bf3 Qee2 R4g6+ Kh7 Bcd3 Na7 Bde4 Nc8 Rg5+
qRQ2KQ1/Q1n1r1rn/3k1B2/qr1n4/N1R3B1/2qP4/N3r1q1/2B1q1Rq w - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qb3 f4 Kd1 f3 Kc2 f2 Kb2 Ra6 Qd1 Ra7 Kc2 Ra8 Ba3 f5 Qc1 g5 Qe1 f4 Qd1 g4 Bc1 f3 h3 Bd6 Nc3 Be6 Nb1 Bf4 gxf4 g3 Qe1 Nf6 Qd1 Bg4 hxg4 Ng8 e4 Kd7 a4 b5 a5 c5 f5 h5 d3 c3 Kb3 c4+ Ka2 h4 a6 g2 e5 c2 f6 b3+ Ka3 h3 Kb4 c3 Kc5 b4 a7 b2 f7 b3 f8B h2 g5 Ne7 g6 Rg8 g7 Qa5+ Kc4 Nd5 Be3 c1Q Qe2 c2 Nc3 b1Q Na2 b2 Be7 Qce1 Bc1 Na6 Bf6 Nac7 e6+ Kd6 Qe3 Rae8 a8Q Re7 Be2 f1R Qc8 f2 Bg4 Qa8 Qa7 Qa5 Kd4 Re1 Ne2 f1Q Rg1 h1Q Nec3 Re2 Na4 Qf3 Bd2 Qbf1 Rc1 b1R Bdg5 Rb5 Kc4 Rh8 g8Q Qfe1 Be3 Rg7 e7 Rhh7 e8R Qfg3 Kd4 Qec3+ Ke4 Re7+ Kf5 Rhg7 Rb1 c1Q Rb4 Qb1 Rc4 Qbe1 Bc1 Qgh2 Rf1 g1N Rf8 Rh7 Kg6 Nf3 Rg1 Ng5 Re8 Q2g2 Rf8 Rd7 Rd8 Rhe7 Re8 Nf7 Kg7 Ng5+ Kf8 Rg7 Qcb7 Rde7 Rb8 R2e5 Qc8 Re4 Be6 Re2 Bg4 Nh7+
6K1/1N2PnQQ/1B2NqB1/1nb2Rr1/1N3q2/1B1r1pR1/1kn1R1b1/qr2b3 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 d4 h5 g4 h3 d6 h2 Kd5 f3 e4 b3 b6 b2 d7 h4 b7 h3 Ra2 f2 Qd3 c4 Nc3 b1N Nf3 Rh6 Re2 Nc6 b8Q Na3 Qg3 Nb5 Ng5 Ra3 Ne6 Bc5 Rg1 h1Q Na2 h2 Be3 c3 Nb4 c2 Rg2 Qc7 d8N c1B Nb7 Rg6 Qb1 Rd3 e5+ Ke7 g5 f5 Qg4 f4 Qc2 f3 Rg3 Nh6 Qb1 Rg7 g6 Nf7 Qc2 Rg8 g7 Bd2 Bh3 f1R Qb1 Re8 g8B Be1 Qg7 Qb8 Bh7 Rg8 Bg6 Qg1 Bhf5 h1Q Qc2 Qh4 Qb1 Ra3 Bc2 Rd3 Bb3 Qf6 Bf2 Rc3 Qf5 Rd3 Qh5 Qc7 Qhh7 Bd7 Ng5 Bh3 e6 Qcf4 Be3 Ke8 e7 Kd7 Ne6 Bg2 Kc4 Q4g5 d5 Ncd4 d6 Qgf4 Kd5 Nc2+ Bd4 Kc8 d7+ Kb8 d8R+ Ka7 Kc4 Kb6 Rd5 Qh1 Rf5 Qg1 Nd6 Ka5 Kd5 Qh1 Ba2 Ka4 Bb3+ Ka3 Nb7 Rc3 Bg1 Kb2 Be3 Bd6 Bb6 Bc5 Kc6 Rg1 Kd7 Re3 Qgh6 Rg7 Ke8 Rd3 Kf8 Rf1 Bh5 Rg4 Q6g7 Rg5 Bg6 Qg1 Kg8 Qgd4 Nc6 Qa4 Nb4 Qa1 Na5 Rg1 Nb7 Bd2 Kf8 Rb1 Kg8 Be1
3Rb1n1/1R1rrk2/p1b1q1N1/3B1n1R/B2n2nQ/bNKQr1n1/1P2N3/B7 w - - 0 1 illegal: Other
r2RQ2b/5p1B/2N1B3/bqN3QR/nn3P2/1Nk1b2B/1bbnrrK1/1Q6 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 g4 hxg4 Be3 Rh7 Bd4 exd4 Nc3 Rh4 Nb1 Rh8 c4 Ke7 h4 Ke6 e4 Ke5 b4 g5 h5 a5 c6 d5 h6 d3 f4+ Kd4 Kf2 g3+ Kg2 a4 c5 d2 b6 g4 e5 a3 c7 a2 b5 Qd7 e6 Qe8 b7 Na6 b8Q Bg7 c6 Nb4 b6 Nf6 h7 Ne4 e7 Bf5 Qf3 d1N c8B Nb2 b7 Nd2 c7 Qb5 e8Q Bc2 Nh3 Na4 Bd3 Rg8 Bcf5 Bh8 c8B Rf8 Qe7 Re8 Qg5 Re4 Nf2 Re2 Bde4 Kc4 Rh2 d4 Rh5 d3 Bcd7 Bb2 h8Q Kb3 Qhe8 Bh8 Na3 Kc3 Rd1 a1B Bfe6 Bb2 Nc4 Ba1 Na5 Bb2 Kg1 g2 Kh2 g1B+ Kg2 g3 Bh7 Qc5 Nb3 Qb5 Kh3 g2 Bc8 Bh2 Bcd7 g1B Kg2 Bg3 Bh3 Nd5 Bde6 Nb4 Qe3 Bh4 Qb6 Bg3 Q8a7 Bh4 b8N Bg3 Nc6 Bh4 Qd5 Bd8 Qbb8 Ba5 Qg5 Ne4 Qbb6 d2 Qab7 Re3 Nd3 Re2+ Kf1 Be3 Ndc5 Re1+ Kg2 Rf1 Re1 d1R Q7a7 Ra1 Rd1 Ra2 Rd8 Nd2 Qad7 Nb1 Qd1 Nd2 Qe1 Ra1 Qf2 Rae1 Qb7 Re2 Qbd7 Nc4 Qd1 Nd2 Qb1 Rfxf2+
2RqN3/kbrq1rB1/1R4Q1/8/1bq2n1b/1nPN2b1/Bp1B1Q2/nKQ2R2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Kd2 g5 f4 e5 h4 d5 b6 Kd7 h5 Kc6 c3 Kb7 Kc2 d3+ Kb2 d2 h6 g3 f6 g4 f7 e4 h7 e3 f5 g2 f6 d4 Ra4 d3 Ne2 g1B Qe1 d1Q Nf4 e2 Ng2 g3 Nf4 g2 Na3 b3 Ng6 d2 Ka1 b2+ Kb1 Bh2 Rd4 g1Q Rc4 Nd7 Nf4 Qg4 Nd3 Ra7 Nb5 Bb4 f8B Bg3 f7 Nc5 Bg7 Ne7 f8Q Nd5 Qff2 Nf4 Nc7 Nb3 Ne8 Rf8 h8Q Rf7 Qg8 Kb8 Rc5 Rac7 b7 Ka7 b8R Bb7 Bg2 Qe6 Rf1 Qc4 Bd5 Qd7 Qh7 Qd8 Qg6 Bh4 Qh2 Qd7 Qef2 e1B Qhg1 Qd8 Be6 Qg4 Qh1 d1N Bd2 Ne3 Rc6 Bg3 Rb6 Nc2 Rc8 Nca1 Qhh6 Qc6 Bc4 Qgd7 Qhg5 Nc1 Ba2 Qc4 Qg4 Ncb3 Qd1 Bh4 Qc2 Bg3 Qc1 Bh4 Qd4 Beg3 Qdf6 Ng2 Qf2 Nf4
1N1bBQ2/4N1N1/2qB1P2/1qnrnpk1/8/2q1K1B1/3nRR2/QRbq2br w - - 0 1 legal: proof: g4 c5 e4 f5 d4 cxd4 a4 b5 axb5 g6 f4 Bb7 g5 Bd5 h3 Bc4 Qf3 Be2 Qb3 Bg4 hxg4 Bh6 Qe6 fxe4 f5 Bg7 f6 Bf8 Qf5 gxf5 Ke2 Kf7 c4 Kg6 b4 a5 b6 d5 b5 h5 b7 e5 c5 h4 c6 e3 b6 h3 c7 h2 c8R d3+ Kf3 d2 Rc4 d1Q+ Ne2 a4 Bd2 e4+ Kf4 a3 Ra4 a2 Be1 d4 Ba5 d3 Nd4 d2 Rg1 h1Q Nc3 e2 Ke3 e1N Bb4 Qd7 Ne6 Bh6 Bd6 Qb5 Nd5 Ra5 Rb1 a1B Rg2 Nd7 b8B Qc2 b7 d1Q Re2 Nc5 Ra2 Ne7 Ng7 Nc6 Bg2 Nf3 Ne7+ Kh7 Bbc7 Nce5 b8N Nd2 Rf2 Bc3 Bf1 Qcb3 Bc4 Q3b4 Bf7 Bb2 Be8 Bc1 Ne6 Bf8 g6+ Kh6 g7 Rh7 g8Q Qc3+ Kf4 e3 Ng7 e2 Qe6 Ned7 Qe5 e1B Rab2 Rh8 Rc2 Qhc6 g5+ Kh7 g6+ Kh6 Qd4 Ne5 Qa4 Rh7 Qa1 Rh8 Re2 Bf2 Rcb2 Bg1 Rf2 Ned3+ Ke3 Kg5 Bg3 Rh1 Bcd6 Qcb7 Nh5 Q7c6 g7 Ra4 Rc2 Rd4 Ra2 Rd5 g8Q+ Kh6 Ng7 Kg5 Ng6 Be7 Qf8 Bd8 Ne7 Qba6 Ra4 Qaa5 Rh4 Qaa6 Rh2 Qab5 Rg2 Bh2 Re2 Bg1+ Rgf2 Ne5+
N3n1n1/K6b/b1Q1B1r1/2R3bk/1B1pB1R1/b1Rr4/qQ3N1P/2nnbQ2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Ke2 Kf7 Kd3 e5 Kc4 g5 f4 b3 f6 Kg6 f5+ Kh6 b6 d5+ Kb5 g3 c4 d3 f7 g2 f6 e4 b7 b2 c5 d4 c6 e3 c7 d2 Kb6 e2 Na3 e1N Qc2 b1B Qc6 d1N Bd2 Nd3 Nc4 Qd5 Ra3 Na6 b8Q Kh5 Bb4 g4 Nh3 g1B Rc3 g3 Bg2 Nc1 Be4 g2 Nf2 Rh6 Qbb7 Rb8 Ka7 Rg6 Nb6 Qa2 Na8 Bd6 f8Q Be7 Ng4 Be3 f7 g1B Nf2 B3g5 Qbb5 Bb7 c8B Bd3 Be6 Nc7+ Qba6 Bb1 Qa3 Ba6 Qb2 Rc8 Ng4 B1e3 Rg1 Bd2 Nf2 Be1 Rg4 Bbd3 Qg7 Bb1 f8R Ne8 Rf5 Rb8 Qf7 Rb5 Ba5 Ba3 Rfc5 Rb3 Bb4 Bc2 R3c4 Re3 Rc3 Rf3 B4d5 Bf5 Be4 Rd3 Qf8 Rh6 Qf6 Bh7 Qf3 Rf6 Qh1 Rh6 Qf1 Rg6
1r1Q1q1q/R1Qbp3/qN4bB/n1N1q3/5P1r/2q5/1n1KB1BQ/k4qNR w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 b4 a5 h4 gxh4 Nh3 a4 Ng1 Bh6 Bd3 Bf4 Be2 Bc7 Bf1 Ba5 bxa5 Ra6 Ke2 Ra7 Ke1 Ra8 g4 Kf7 f4 Ke6 c4 d5 a6 h5 a7 d3 c5 d4 g5 Kd5 b6 Kc4 c6 e3 c7 h3 g6 a3 g7 h2 b7 e2 Bb2 a2 Nh3 h4 Bg2 d2+ Kf2 e1Q+ Kf3 d3 Ba3 Nh6 g8B+ Nf7 Qc1+ Kb3 Rf1 h1Q Bb4 Qf8 Qc5 Kb2 Qf2 Nd6 Qe2 Nc6 b8Q Nc4 Nc3 Bd7 Qd8 Rb8 Qe3 d1B+ Ke4 d2 Kd3 Rh6 c8Q Bh5 a8N Bg6+ Ne4 d1Q+ Bd2 Qa4 Qcc7 Rh7 Qg1 Qa5 Be3 Qec3+ Ke2 Qaf5 Bd4 Qe6 Bf6 Qee5 Nb6 Rh6 Bg5 Rh5 Rac1 a1Q Rce1 Qa8 Ra1 Rh7 Ra6 N6a5 Bf7 Qb7 Ra7 Qa6 Be6 Rh8 Bg4 Rh5 Kd1 Ka1 Nc5 Qh2 Qh1 Qg1 Be2 Qf2 Ng1 h3 Nf3 h2 Qg1 h1Q Re1 Qfh4 Qh2 Qg1 Rf1 Qgf2 Rh1 Rh7 Ng1 Qhh6 Qc6 Qfh8 Qcc8 Q6f8 Qcc7 Rh4 Bh6 Qce3 Ne4 Nb2+ Kc2 Qh3 Kd2 Qf1 Nc5 Qhc3#
1b1RQb1r/bBrB1R1n/r2b4/kq2n2Q/3q4/3pN3/3KB1P1/1rNR3N w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 f4 Bb7 h3 Bd5 f5 Bf7 Be3 Bh5 Bf4 Bg4 hxg4 gxf4 b4 h5 c4 d5 b6 Kd7 b7 Kc6 f6 Kb6 g5 e5 b5 a5 g6 d3 g7 d4 f7 e3 Qc2 d2+ Kd1 f3 Qf5 h4 Rh3 e2+ Kc2 d1R Rg3 e1B Ne2 f2 Nd2 e4 Rd3 e3 Nb3 h3 Qh5 h2 Ng3 h1R Be2 f1Q Nc1 a4 c5+ Ka5 c6 a3 c7 a2 c8B Bf2 Bd7 Nc6 b8Q Ra6 b6+ Ne5 b7 Nf6 g8B Nh7 Qa8 Rg1 b8N Qb6 Rb1 a1B Nh1 Bb2 Qe4 Bba3 Qc6 Bfd6 f8R Re1 Rd1 d3+ Kc3 Qb5 Rf7 Bg3 Qc8 Qf6 Qe8 Bac5 Rb4 Ba7 Rc4 Bf4 Rc8 Bh6 Rd8 Bhf8 Bc8 Qh4 Bb7 Qf4 Nd7 Qg4 Bf1 e2 Nf6 Qd4+ Kd2 Bdb8 Ng4 Bbd6 Na2 Bdb8 Ne3 Bbd6 Ra1 Rc1 Rb1 Rc7 Nc1 Nf6 Bh7 Bb8 Bg6 Nh7 Bf5 Ba7 Bd7 e1B+ Kd1 Bf2 Kd2 Bb8 Be2 Qg4 Nf1 Bfa7 Ne3 Qd4 Nb3+ Kb4 Rd1 Re1 Nc1 Ka5 Qe7 Rg1 Qe8 Qa1 Re1 Rf1 Na2 Qd4 Rb1 Rfc1 Ra1 R1c3 Rd1 Rb3 Nc1 Rb1
3nk3/3Rn3/rrQR3b/qb4n1/P1BKQ2n/Br1Np3/2QNr3/1q1N3R w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 c5 Rh3 cxd4 Rh2 Nd7 Rh1 Nb8 Ke2 h5 Kd3 b5 a4 e5 f4 e4+ Kc2 e3 Kd3 h3 g4 h2 g5 h4 g6 b3 g7 h3 d6 b4 f6 b2 f5 b3 Qf3 Ba6+ Ke4 d3 Ne2 d2 Nec3 d1Q Nd2 b1R Bc4 b2 Kd4 Qa5 Qe4+ Ne7 g8Q Bb5 Qge6 Ra6 Ra3 Qf1 Nd1 Bh6 Rd3 Rg8 Q6d5 Rg2 Qb7 Re2 f7+ Kf8 d7 Nbc6+ Kc5 Qe1 Rd6 Nd8 Kd4 Qf1 Qbc6 Qe1 Rg1 h1N Rf1 Nf2 Rh1 h2 Qc2 Kg7 f8N Nh3 Ne6+ Kf7 f6 Ng5 Nf4+ Kf8 f7 Qf1 Rg1 h1N Nd3 Ng3 Rh1 Ngf5+ Kc5 Nh4 Kd4 Ra1 Qe4 b1R Ba3 Rb3 Qc6 Rab1 Qe4 Nb7 d8R+ Kg7 R8d7 Nd8 Be6 Qf5 f8Q+ Kg6 Qe8+ Kg7 Qg6+ Kf8 Qf6+ Ke8 Bc4 Qf1 Qff3 R1b2 Nc3 Qb1 Nd1 Bc6 Qg2 Rbb6 Qgf3 Bb5 Qc6 Rb4 Qfe4 Rb3
b5rQ/Qp4K1/1qN1R1nB/rQr4N/3N1Brn/qP2R3/1n6/k2n1bB1 w - - 0 1 illegal: Other
qB2q2k/Q1Q4N/q1B1Nn2/1R3b2/Rp3qrK/b1P4N/1r2q1R1/r5bB w - - 0 1 illegal: No possible last move, all moves rejected
3Qq1R1/1bqnK3/3B1rN1/3B4/1bR1b3/Q1N1Q3/qqp2P1R/2r1bkbB w - - 0 1 illegal: No possible last move
K1Nr2k1/1b1b2r1/5nqq/B1pq3b/5Rq1/3RBqPB/1NQb1Q1Q/6N1 w - - 0 1 illegal: No possible last move, all moves rejected
q1q3R1/kq1N1b1r/1p1b1P2/3n1q2/4b3/b4bQn/NQB5/BQ1KRNB1 w - - 0 1 legal: proof: b4 d5 h4 f5 e4 fxe4 c4 g5 cxd5 gxh4 a4 a6 a5 Ra7 b5 axb5 a6 b4 Ra4 b6 Ra1 Rb7 axb7 Qd7 Ra4 Qd6 Ra1 Qd8 f4 Kd7 d4 e5 g4 h5 d6 Kc6 g5 b3 d7 e3 f5 b2 g6 e4 f6 e2 g7 h3 Ra3 h4 Bh6 h2 Bc1 h3 Rd3 Nh6 g8N Ng4 Bg2 Na6 b8B Kb7 d5 c5 d6 c4 Na3 b1Q Nc2 c3 Nf3 Nb4 Be3 Rh7 Ne7 Nf2 Nd2 Nd5 Nb4 c2 Ng6 c1B Nf1 Ba3 Na2 Qc1 Bc7 Ka7 Ne5 Qe7 d8Q Be6 d7 Bf7 Bd6 Qc8 Qb1 Qe6 Rd1 Qf5 Rg1 h1B Qc7+ Qb7 d8Q h2 Qcc1 Nh3 Qdc7 Be7 Bb4 Bd6 Bc3 Qc8 Kd2 e1Q+ Kc2 Qf5 Ba1 Qa5 Nd7 Qa6 Bed4 e3+ Be4 e2 Rg8 e1Q Qcb2 Qea5 Bg1 Bf3 Re1 h1B Kc1 Qa4 Bc2 Be4 Qc3 Bhf3 Qe5 Q4c4 Qg3 Qcc8 Kd2 Qba8 Kc1 Q6b7 Kd2 Bg2 Kd1 Bgf3+
4qKN1/3P3Q/1qq3B1/1BbQbb1N/r2qbB1n/5p1k/q3Rr2/1QRN4 w - - 0 1 illegal: No possible last move
1BKB4/q1q2k1b/n4Nr1/R1nb1nq1/1B1b1qnN/1pR5/Q1QN1P2/7R w - - 0 1 legal: proof: g4 f5 gxf5 d5 c4 a5 e4 dxe4 b4 axb4 Bh3 b5 Ne2 h5 Bg4 hxg4 Ng1 Ra3 Kf1 Rd3 Ke1 Rd5 cxd5 Bb7 Nf3 Ba6 Ng1 Bc8 Ke2 e5 Ke3 g5 a4 c5 d4 c4 h4 c3 f6 g3 a5 c2 d6 b3 h5 g4 d5 b2 a6 b4 h6 g2 a7 g3 a8N b3 h7 Bb7 d7+ Kf7 d6 Bd5 Nc7 Nh6 Na8 Nf5+ Kd2 e3+ Kc3 e2 Kb4 e1N Kc5 e4 Ra5 e3 Nc7 e2 Kb6 Rg8 h8Q Rg6 Bf4 c1Q Qc2 Bg7 Nf3 g1N Nh4 g2 Nd2 b1B Qa2 Qc4 Qh7 Nd3 Bh2 Qe7 d8B e1Q d7 Nf3 Ne8 Nc5 Kc7 g1Q Kc8 Nba6 Bb8 Q7e5 Be7 Q1e3 d8B Q5f4 Bf8 Qgg5 Bfd6 Ke6 f7 Bd4 f8R Nh2 Nf6 Ng4 Rh8 Bbe4 Rc1 Bd3 Rc3 Bb1 Qc7 Bd3 Qc6 Kf7 Bf8 Qe7 Rh6 Qa7 Qc7+ Nd7 Bb4 Qcc5 Rh8 Qcb6 Qc4 Ndc5 Rh6 Be4 Qd3 Qbd6 Qdc2 Rg8 Qa3 Ng7 Nhf3 Bh7 Qaa2 Nf5 Rh1 Rg6 Nh4 Qdc7+
5bRb/KBk3nb/Qn3p2/4N3/1N1PQRn1/1Qr5/b1B1R1Nn/3n1n1r w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 exf4 g5 b5 axb5 Bc5 g6 Bf8 b3 h6 Bb2 Qd5 Bf6 Kd7 Bh4 f6 Bg5 Qf7 gxf7 hxg5 Kf2 a5 d4 c5 e4 c3 h4 a4 b6 f3 Ke3 f2 e5 c2 h5 c1N b4 c4 b7 c3 b5 g4 h6 g5 h7 c2 e6+ Kc7 e7 g3 e8B g2 Qe2 g4 Qf3 a3 Ra2 g3 Qe2 Be6 Rh2 Nd3 Nd2 c1B Ke4 Ne5 Ndf3 Nbd7 b8N Nh6 Ne1 Nb6 Rh4 Neg4 Ngf3 g1N Ng2 Nf5 Ne5 Bch6 Nbc6 Nh3 Nb4 Ng7 Bc6 Rc8 Bb7 Bc4 Rb2 a2 Qe1 a1N Bd3 f1B Re2 Nb3 Bc2 Be6 Qa1 Bc4 Qa6 Be6 Kd3 Nd2 Kc3 Ba2 Kd3 Ne3 Rf4 Nf2+ Kc3 Nfg4 Kd3 Bd6 f8Q Nd1 Qe8 Bc5 Qg6 Bf8 Qe4 Nde3 Ne1 g2 Kc3 g1N Ng2 Ngf3 Kd3 Rg8 h8R Nfh2 Kc3 Bc5 Kd3 Rgd8 Rg8 Bf8 Ne1 Bh3 Ng2 Ndf1 Kc3 Bb1 Kb3 Nd1 Ka3 Re8 Kb3 Ba2+ Ka3 Nd7 Ka4 Nb6+ Ka5 Re6 Qa8 Rc6 Ka6 Rc3 Ka7 Ne8 Re3 Bhg7 Re2 Bh8 Nf3 Kd6 Ne5 R8c7 Qc8 Rh7 Qc4 Ng7 Qcd3 Na4 b6 Rh6 Qa6 Rh4 Bd5 Rh7 b7+ Nb6 Nf7+ Kc7 b8Q+ Kd7 Bb7 Rh6 Qbe8+ Kc7 Q8e6 Rh5 Ne5 Rh4 Ne3 Bg2 Qb3 Bh1 Qed3 Be4 Ng2 Bh7 Qe3 Nf3 Qed3 Rh1 Qe4 N3h2
3r4/BNnR1q2/q1N3nr/rQ1BQ3/1K2P1kr/N1r1B3/qRnQ3p/7q w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 Ba3 g5 Kc1 b6 Kd2 Bd6 Bc1 Bb7 Kd3 Bf3 Kd2 Bg4 h3 f3 Bg2 Bf4+ gxf4 Bh5 Bf1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 a4 Ke7 c4 Kf6 e4 h5 f5 Kg5 f6 d5 f7 d3 f8B g2 a5 h4 c5 b3 Kc3+ d2 c6 b2 a6 d4+ Kb4 b5 a7 d3 c7 h3 c8Q h2 Ra4 Qa5+ Kb3 b4 Qc3 Na6 Ne2 g1Q Qd4 Rh4 Bc5 Nc7 Nec3 Ne7 Na3 b1N Ncb5 Ng6 Nd6 Qa6 Nb7 Rd8 Be2 f1Q a8Q f2 Qb8 Rdh8 Ra5 R8h6 Rb5 Kf4 Kc4 b3 g5 b2 Kb4 Qfg2 Qc4 f1Q Ba7 Qff3 Qd5 Kg4 Qe5 Qe1 Qc2 d1R+ Qd2 Qeg1 Bf1 Qf7 Rd5 Re1 Rd7 Re3 Qb5 Qe2 Qh8 Rg3 Qhe5 Qgg2 Rg1 Qh1 Rg2 Qef2 Qd1+ Qe2 Bce3 d2 Qc1 d1R Qd2 Qef2 Bc4 Qe2 Bd5 Qef2 Bc6 Qa2 Bd5 Qf7 Nc4 Na3 Re2 Ne7 g6 Rgh3 g7 Ng6 g8N b1R+ Kc3 Rg3 Ne7 Nc2 Na3 Rb4 Rg2 Ra4 Nc6 Ra5 Qe1 Nb4 Rb2 Rd4 Qd2 Nc2 Bc4 Rd6 Bd5 Rgh3 Re7 Rd8 Rd7 Nd4 Kb4 Rg3 Bg5 Rc3 Be3 Nc2+
2Rr1B1N/3Q4/K1R1rB2/4NBqn/Q1r1P2k/qpq3r1/nN6/qQ2r1n1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 Ba3 g5 Kc1 b6 Kd2 Bd6 Bc1 Bb7 Kd3 Bf3 Kd2 Bg4 h3 f3 Bg2 Bf4+ gxf4 Bh5 Bf1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 Kd3 Kf7 Kc4 Kf6 Kb5 h5 c4 d5 a4 h4 e4 d3 f5 h3 c5 b3 c6 b2 c7 h2 c8Q g2 a5 d4 a6 d2 a7 Kg5 f6 d3 f7 Nf6 f8B Na6 Be2 f1R Qb3 f2 Bf3 Rh6 Be7 Nb4 Ra6 Na2 Qd7 Kh4 g5 d1Q g6 d2 g7 Qe1 g8N d1Q Bg4 Qd6 Nd2 b1Q Bb2 Qa1 Bf5 Qa3 Nc4 Qc3 Bf8 Re1 Ne7 f1R Qa4 Rc8 a8Q Rf3 Qab7 Nh5 Qb8 Re6 Ng6+ Kg5 Nh8 Kh4 Ra8 Qg5 Ka6 b5+ Qb6 Rd8 Rc8 b4 Rc6 Qcd2 Bf6 Rg3 Nb2 Qdc3 Qb5 Rc1 Qbd3 b3 Qb1 Rh3 Bg6 Rg3 Nf3+ Kh3 Rd1 g1N Ne5 h1R Bf5+ Kh4 Rdd6 Re1 Rc8 Rh2 Rdc6 Rd2 Bh6 Rd4 Bf8 Rc4
1R4qK/NR2B2n/3b2k1/b5n1/BpQ5/q2Nb1P1/1QprB3/1Rnrq1Q1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 b4 gxf4 e4 axb4 e5 Bg4 h3 f6 hxg4 fxe5 Bd3 e4 Ba6 Bh6 Bf1 Bf8 Kf2 Kf7 a4 e5 d4 h5 a5 b5 a6 c5 g5 h4 d6 b3 d5 h3 g3 f3 Ke3 b2 d7 c4 a7 h2 d6 f2 Bg2 f1N+ Kf2 e3+ Kf3 c3 Kg4 e4 Kf5 c2 Nf3 e2 Nc3 e1B Rb1 Bf2 Ne1 e3 Bf3 e2 Nd3 e1B Be2 Nc6 g6+ Kg7 Bf4 Ne5 Bg5 Be3 Be7 Nf6 Rg1 Kh6 g7 h1Q g8Q Nd2 Qc4 Ndf3 Rf1 Qa5 d8R Qa3 d7 Nh7 Rb8 Nfg5 d8Q Qd5 Qb6+ Kg7 Rb7 Rd8 a8B Qg8 Rf3 B1d2 Qg1 Be1 Rb8 Rd7 Bc6 Kh6 Nd5 Ba5 Nc3 b4 Qbd4 Rd5 Nb5 Kg7 Na7 Rd7 Ra1 b1Q Ba4 Qe1 Rb1 Rd5 Qb2 Kf7 Bf6 Bd6 Be7 Kg7 Nf2 Rd1 Nd3 Qd5 Rf4 Rd8 Rd4 Qg8 Rd5 Kh6 Rdb5 Nef3 R5b7 Nd2 Kg4 Kg6 Kh4 Kf5 Kh5 Nb3 Kh6 Rd2 Ra1 Nc1 Rb1 Qe6+ Kg7 Rd7 Kh8 Kg6 Rb6 Rd1 Nc5 Bdf4 R6b7 R7d2 Nd3 Bd6 Ra8 Qf7 Rab8 Qg8+
R3R3/1b5Q/QpP1p3/n3bQBN/4Nn1K/3rq3/qN1q3k/Rr2Br1n w - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 h5 exf5 c5 b4 axb4 Bh3 cxd4 fxg5 Qb6 g6 Qa5 g5 Qd8 Bg4 hxg4 Kf2 d5 Kg3 Kd7 h4 Kd6 a4 Ke5 c4 e6 h5 d3 g7 b3 h6 d2 h7 b2 f6 b6 c5 d4 f7 d3 a5 Qd4 a6 Bb7 g6 Nf6 g8Q Qd5 a7 Qa2 g7 Nd5 Ne2 Nf4 Qa4 d1N Nbc3 b1R Kh4 g3 Ne4 d2 Qa6 g2 N2c3 g1Q Na4 Qe3 Nb2 Bd6 f8Q Nc6 Rf1 Rb8 a8R Na5 c6 Nf2 Qgf7 d1Q g8N Re8 Ngf6 Rd8 Nh5 Nh1 Bd2 Rg8 Be1 Qdd2 h8B+ Rg7 Rf2 Bc7 Q8g8 Rd3 Qh7 Bd6 Rg2 Bc7 Rg6 Bb8 Rf6 Rg1 Qfg6 Rf1 Rf8+ Kd5 Bf6 Be5 Rfe8 Kd4 Neg3 Kd5 Bg5 Kd4 Nf5+ Ke4 Nd6+ Kf3 Qf5 Kg2 Ne4 Kh2
3NkB1N/2r1n1p1/q3nRqP/3BQ2b/1r2N3/1qB2r1K/bR5p/1Q1n3Q w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 h5 Ra3 h4 Ra4 h3 Ra1 Be7 Nc3 Bh4 gxh4 Qg5 Nb1 Qg3+ Kd2 Qg2 Ke1 Qxh2 b4 a5 e4 f5 c4 d5 e5 d3 e6 d4 c5 f3 h5 a4 b6 a3 b7 f4 e7 a2 c6 Ra5 h6 Ra3 b5 Kf7 e8Q+ Kf6 b6 Be6 c7 Nd7 b8B Nf8 c8Q Qc2 b7 d2+ Kf2 h2 Bc4 d3 Nc3 Qb3 Bd5 Ne7 Bb2 Ra4 Nge2 Rb4 Rb1 a1Q Qcc6 Qa6 Rf1 Rg8 Qc2 d1B Bd6 d2 b8N Qd3 Qb7 Qg6 Nc6 Rh8 Qeb8 Kf7 Nd8+ Ke8 Ne4 Bf7 Q8c7 Ne6 Bc3 Rf8 Rb2 Bg8 Nd4 Rf7 N4c6 Be2 Ne5 Bd1 Qc5 Be2 Qb1 d1N+ Ke1 f2+ Kd2 Qg2 Ng6 Bh5 Nh8 f3 Qd4 Qg6 Qe5 Nf5 Bf8 Rc7 Re1 f1Q Re3 f2 Rf3 Ne7 Rf6 Qh1 Qa8 f1R Qb7 Rf3 Ke2 Qhg1 Qa8 Q1g5 Qaa1 Rd3+ Kf1 Qe3 Qa8 Qa7 Qb7 Qa6 Qa8 Bg4 Kg2 Bf3+ Kh3 Bh5+ Ng3 Rf3 Qb7 Rf2 Ne4 Rf4 Qa8 Rf3+ Ng3 Qba3 Bb7 Rf1 Rf5 Nc5 Rf6 Ba2 Bh1 Qb3 Qae4 Qac4 Qe1 Qb5 Bd5 Qa6 Ne4 Rf2 Qg1 Ne6 Qh1 Rf3+
bB1n1b2/3RN1Rb/1Krp4/1n2p2Q/B3nR2/Q4Pq1/1n1kN2Q/n1r4N w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 g4 h5 c4 d3 b6 e5+ Kb5 b3 g5 h3 f6 h2 f7 b2 g6 d2 b7 h4 c5 h3 g7 Nc6 b8Q Nh6 g8R Ng4 Ne2 Kd3 Rg7 Rh6 Ra4 Qg5 Nbc3 b1N Ba3 Ne3 Kb6 Nd8+ c6 Nc2 Bd6 Na1 c7 Qg3 Rf4 Na3 Ne4 Nb5 Bg2 Bb7 c8N Ra7 Bf3 Ba8 Ne7 Rc7 Qa7 Rc1 Qa2 Rf6 Rg1 h1B Qb2 Nc6 Bb8 h2 Bg4 Bg2 f3 h1N Nf2+ Ke3 Be6 Bh3 Bb3 Bf5 Ba4 Bh7 Qf1 d1N Qh3 Rg6 Qh5 Rf6 Qa2 Nb2 Rd1 Nd8+ Rd6 Nd3 Qa3 Kd2 Qh2 Qg2 Qh5 Ng3 Nh1 Ne4 Ng8 Be7 f8Q Qg3 Qh2 Rh6 Qe8 Bf8 Ne7 Re6 Qeh5 Rf6 Re6 Nb2 Rc6 d6 Rc7 Rf7 Ng8 Re7 Rb7 Rec7 Ne7 R7c2 Rd7 Rc6+
nk6/3RNR1p/Rr2Q1Q1/2K2r2/1BnpnN1b/2nB2q1/bNP5/Q1b2n2 w - - 0 1 illegal: No possible last move
5kn1/P5p1/1r3BR1/bb3rN1/QnBNrQQ1/qRp4K/1Br4R/4nr2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 hxg4 d3 d5 cxd5 e5 d4 exd4 h4 c5 a4 b5 f4 d3 Kf2 d2 Kg2 c4 a5 g3 a6 c3 a7 b3 f6 b4 d6 b2 f7+ Kd7 f5 b3 h5 Qf6 h6 Qe7 h7 Kd8 d7 Na6 f6 Qa3 Nf3 Nb4 Kh3 g2 Bc4 Ba6 Rg1 Bb5 Nd4 Rb8 Qc2 d1R Nd2 b1R N2f3 b2 Qa4 Re1 Ng5 Rb6 Ra2 Bd6 f8R+ Re8 f7 Ke7 Qa5 Ra1 Qa4 b1R Bb2 Bc7 d8B+ Kd7 Nb3 Re4 Nd4 Rc1 Bf6 Rc2 Rb8 Rf1 f8Q Bd8 Qd6+ Ke8 Qe5+ Kf8 Qf4 Rbe6 Rb7 Ba5 Qg4 Rb6 Qf4 Ne7 Qg4 Rg8 h8Q Rf5 Qhh4 Rh8 Rh1 Ng8 Rh2 Rh6 Qf4 Rg6 Qhg4 g1N+ Kh4 Nf3+ Kh3 Ne1 Ra1 Qb3 Ra3 Qa2 Rb3 Qa3 Rd7 Ng2 Rd6 Ne1 Be5 Rgf6 Re6 Rf7 Rg6 Re7 Bf6 R7e5 Qe3 Rf1 Qef4 Rf5
rr2b3/1nRP1Nb1/3n1p2/5RBp/N3BQ1Q/rnnR4/QB3q2/b3k1K1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 g4 Kd6 d4 c5 e4 h5 b6 f6 g5 c4 b7 c3 g6 f3 g7 h3 Qd2 b3 Bd3 h2 Ra5 b2 Nh3 c2 Nc3 b1N Ng5 Qb6 Bb2 c1B Na4 Ne7 g8Q Bg7 Bc2 Nd7 b8B+ Qc7 Ra7 Nf5 Rf1 h1R Qf7 Rh4 Kg1 Nc3 Bd3 Rh3 Qf4+ Ne5 Qh4 Nc4 Qg8 Na5 e5+ Ke7 e6 Kd6 e7 Nb7 e8Q Bd7 Qef7 Be8 Be4 Bf4 Qg6 Be5 Qh6 f2+ Kg2 Ke7 Nf7 Qb6 d6+ Ke6 d7 Nfd6 d8R Rd3 Q6f4 Qc5 Re1 f1N Kg1 Nd2 Rf1 Nb3 Rd7 Rf3 Rc7 Qb6 Ra5 Rd3 Rd1 Re3 Rd3 Qc5 Bg6 Kd5 Be4+ Kc4 d5 Kb4 Ba7 Rg3+ Kh1 Qf2 Be3 Nc4 d6 Rb8 d7 Ncd6 Bc6+ Bd4 Rf5 Ra8 Rd1 Kc4 Bd2 Kd3 Be4+ Ke2 Bdc1 Rf3 Rd3 Rb8 Qe5 Ke1 Bg5 Re3 Qef4 Ne2 Bc1 Ba1 Bb2 Nc3 Nd8 N3c5 Qa2 Nb3 Nf7 Ra8 Nd8 N3c5 Qe5 Bf7 Qeh2 Nd1 Rdd5 Ra3 Rd3 Nb3 Q2f4 Re8 Ne6 Reb8 Nd8 Be8 Nf7 Qg3 Qh3 Qf3+ Kg1 Nc3 Qhh4+ Qf2+
B1N5/3Kb1q1/nb5R/2Q1q1q1/3prBn1/1r2RQP1/kb1QBpN1/q3R3 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 e5 f3 d3 Kc3 e4 Ra4 Bb7 Ra3 e3 Ra1 Be4 fxe4 dxe2 Kc4 Ke7 Kd5 e1Q c4 f5 b4 h5 e5 a5 b6 a4 b5 f4 e6 a3 g3 a2 c5 e2 c6 f3 c7 f2 c8B h3 b7 h4 b6 h2 Qd2 h3 Ke5 d5 Qd4 Na6 b8Q Rh4 b7 Nf6 Qba7 Rb8 Qd2 d4 Nf3 Re4+ Kf5 Kd6 e7 Kd5 e8R Kc4 Nc3 Kb3 Nd5 Qa5 Nh4 Be7 Qc5 Ng4 Nb6 Qb5 Ng2 Qa5 Rg1 h1Q Bd7 h2 Nc8 Qc7 Bc6 Qd8 Rh8 Qg8 Rh6 Qg7 Qf4 Qa5 Qd2 e1B Be2 Qd8 Qe3+ Bc3 Qd2 Ba5 Re1 Bb6 Bd5+ Ka4 Rb1 a1B Rb3 Bb2 Rf3 Qe8 Re3 Qb5 Bc6 Qf1 Bd5 h1Q Bc6 Qh4 Bd5 Rf4+ Ke6 Qhg5 Bc6 Re4+ Kd7 Ra8 b8Q Qg1 Qb7 Rb8 Bd3 Kb3 Be2+ Ka2 Qa8 Qa5 Bb7 Ba7 Bd5+ Rb3 Qac6 Qh1 Qf6 Qe5 Ba8 Bb6 Qf4 Qh4 Qf3 Qhg5 Qd3 Rf4 Re4 Qd2 Qdc3 Qd1 Be3 Qa1 Qd2 Qef6 Re6 Rf5 Re4 Re5 Bf4 Re6 Re3 Re4 Nh4 Qge5 Ng2 Qfg5
2bN4/B4R2/1BrN4/Rb1B2Kp/3n3n/2pPR1bQ/Nq1k4/r1n1nq1Q w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 g4 Ke5 e4 Kd4 d6 h5 d7 c5 b6 f5 g5 h3 e5 h2 g6 b3 e6 b2 e7 c4 e8R c3 b7 Ne7 g7 Qb6 d8B Rh6 g8Q Ng6 Bh3 Kd3 Ra7 Bd6 Ne2 Nc6 Rf1 h1N b8N Ng3 Na3 b1N Qe6 Qb2 Nc4 Na3 Bg2 Nc2 Rf2 Be5 Qh1 Bc7 Rf1 Bd6 Rf7 Ra1 Ra7 Bc7 Ra5 Be5 Re7 Bd6 Re1 Bc7 Rf7 Nh4+ Kf2 Rf6 Bd5 f3 Qd7 f4 Qdh3 Na7 Nc6 Nb5 Rd1 Rd6 Re1 Bb8 Bc7 Rf6 Nd8 Rc6 Be5 Bc7 Bd4 Bd6 Ba7 Be5 Kg1 f2+ Kh2 f1B Nd6 f3 Bb8 f2 Ba7 Qa2 Ba3 Qb1 B3c5 Nbd4 Bcb6 Bf4 Qg1 Qb2 Qh1 Na3 Nc1+ Kc2 Bc7 Bb5 d3 f1Q Bcb6 Kd2 Na2 Nac2 Re3 Ne1 Qd7 Nhg2 Kh3 Nge2 Qf5 Be5 Qe6 Nc1 Qd7 Nf4+ Kh4 Ng6+ Kg5 Nh4 Qdh3 Bg3
QrB2q2/5N1b/4n1nR/P7/Rq1k3p/1rN1r1qR/3B2Qp/2NrbK1Q w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 c5 Rh3 cxd4 Rh2 Nd7 Rh1 Nb8 a4 Kd7 f4 Kd6 g4 Kc5 d6 h5 a5 b5 f6 e5 d7 d3 g5 b3 f7 e4 g6 b2 f5 e3 g7 e2 f6 d2+ Kf2 e1Q+ Kg2 h3+ Kf3 b4 Rh2 h4 Qb3 d1R Ra4 Kd4 Ba6 Qg3+ Ke2 Nc6 Bd2 Nge7 g8Q Rb8 Qf3 Ng6 Nc3 b1R Qh1 Rb3 Qg7 Bd6 f8R Bf4 Rf7 Qf8 d8N Bf5 Bc8 Be3 Rb7 Bf2 Rb6 Be1 Nf7 Nd8 Kf1 Ne6 Rc6 Rh5 Ra6 Bc2 Rb6 Re5 Nge2+ Kc5 Nc1 Re3 Ne5 Kd4 f7 Ne7 Ra6 Bh7 Qg8 Ng6 Rc6 Qe7 f8Q Qc5 Nf7 Qf5+ Rf2 h2 Rf3 Qc5 Qe7 Qcd6 Qb7 Qf8 Qa8 Rb1 Ra2 b3 Rb6 b2 Ra6 Qgd6 Rh3 Qg3 Ra3 Ra1 Qag2 b1Q Ra4+ Qbb4 Qa8 Ra3 Rb6 Ng7 Rf6 Ne6 Qg7 Ne5 Rh6 Rb3 Qg5 Ng6 Qg4+ Qf4+ Qgf3 Qg5 Qfg2 Qg3
n2bqqK1/1B1p1RB1/2R1N1B1/nr3rqR/p1qbb2N/Q7/5P1k/1NQ5 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 a5 b4 e5 c4 a4 g4 e4 c5 d3 c6 d2 b6 Kg5 b5 e3 c7 e2 f6 e1B b7 h3 f7 Kh4 g5 h2 g6 Bg7 f8Q Na6 b8Q Qg5+ Kd6 Bd4 b6 Ne7 g7 Bb7 c8B Nc6 g8R Na5 Qdf3 d1Q Bb2 Qd3 Qc7 Qc4 Qa3 Be4 b7 Rb8 Rg7 Bb4+ Qc5 Nc7 Rf7 Na8 Bd3 Bbc3 Nf3+ Kh3 Rc1 h1Q Nh4 Kh2 Qc7 Qhg2 Qcc5 Qf4+ Ke7 Qgg5+ Ke8 Qb4 Qc7 Bd2 Rc6 Rh6 Bc2 Rf6 Bc3 Rf5 Bd3 Bb6 Bg7 Bde3 Bc2 Bed4 Bd3 Qfg3 Qf4 Bd8 Qfc1 Nb6 Bc2 Qgc3 Bd3 Qcc4 Bc2 Ra8 b8N Ra7 Bb7 Na8 Bd3 Ra6 Bc2 Rb6 Na6 Rbb5 Nc7 Rbe5+ Ne6 Rb5 Ng2 h4 Bd3 h3 Nh4 Bb2 Rf6 Be5 Kf7 Bd4 Kg8 Bd5 Qf4+ Kg1 Ng2 h2 Nd2+ Qc1 Rf7 h1Q Nc7 Rf6 Bg6 Rf5 Rb1 Qh2 Rb3 Qcc3 Nb1 Qcc4 Rh3 Be4 Rh5 Kh1 Qfe3 Kg1 Nh4 Qe5 Qd2 Qe8 Qdc1+ Kh2 Ne6 Qbxf8+
Qq4K1/1P2pn1N/4nn2/QqrQN1bk/4R1pB/2N5/2Rr1q2/R1Bn1b2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 f4 g5 g4 gxf4 g5 h6 Be2 h5 Bg4 hxg4 Kf2 Kf7 b4 Kg6 d4 a5 h4 c5 d6 f3 Ke3 f2 Kf4 f1Q+ Ke5 a4 d7 a3 Ke6 c4 h5+ Kh7 h6 Kg6 d5 e3 h7 c3 b6 c2 b7 e2 d6 a2 b5 Nh6 b6 Nf7 Rh2 Bh6 Nf3 Na6 b8Q e1Q+ Re2 Bb7 Re4 Kh5 g6 Qb5 g7 Qf2 g8N Bg5 Nc3 Ra7 Qc7 Qb8 d8Q Ba8 Qc6 Rc7 d7 Bb7 Qcd5 Rc5 Qe1 Bc6 b7 Nc7+ Kf5 Ne8 Ke6 Qa4 Qa5 Bb5 d8R Bf1 Rc8 Qb3 Qa8 Qb5 Nh6 Rg8 h8B Rg6+ Bf6 Rg8 Bd2 c1N Ne5 Nd3 Bc1 Nb2 Rc6 Rf8 Ng8 Nd1 Rc7 Be3 Bh4 Bg5 Rb1 a1N Nf6+ Kh6 Rc8 Nb3 Nh7 Kh5 Ra1 Rg8 Rc6 Rg6+ Kd7 Rf6 Qed2 Rf3 Ke6 Rd3 Qda2 Rd2 Q2a5 Nd4+ Kd7 Nfd6 Na2 Qa6 Rc7 Rb5 Rc2 Rc5 Nc3 Nf7 Qa4 Ne6 Qa3 Ned6 Qa5 Nc8 Ke8 Qb5+ Nc6 Ng7+ Kf8 Ne6+ Kg8 Ncd6+ Nd8 Ne8 Nc6 Qa4 Ne5 Qc6 Rd4 Qb5 Re4 Nf6+
bb3QRb/p7/4N1R1/QB3N1K/q3n1B1/1r2Pq1p/k4Bb1/Nr2nR1r w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 exf4 e3 g5 Qg4 gxh4 Qe2 f3 Kf2 fxe2 Kf3 Ke7 g4 Kd6 d4 e1R b4 h5 b6 c5 b5 f5 g5 c4 g6 c3 g7 h3 b7 f4 b6 c2 Ne2 h2 Na3 h4 Bd2 c1B Ng3 Bb2 Nc2 Nc6 b8R Nf6 g8B Qe8 b7 Rb1 Rg1 Ne4 Be1 Nb4 Be6 h1Q+ Kg4 f3 Bb5 Nd3 Bf2 Ne1 Ra6+ Qc6 Rf1 Bg7 Na1 Be5 Bf5 Bd7 Rg8 Rb8 Ra2 Qc4 Ra6+ Bc6 Bd7 Qa4 Bf5 Rc8 b8Q+ Rc7 Qb6 Rb7 Qa5 Rb6 Be6 Ba8 Nf5+ Kc7 Bg3 f2 d6+ Kb7 d7 Bb8 d8Q Qf3+ Kh3 Rh6 d5 Bh8 d6 Rb3 d7 Rh7 Be2 Kc6 Bb5+ Kc5 Qf6 Rb7 d8N Rb1 Bc8 Rh5 Ne6+ Kd5 Be8+ Kc4 Qf8 R7b3 Bcd7 Rh7 Bh5 Rh6 Bg4 Rh7 Qd5+ Kc3 Qa5+ Kb2 Bb5 Ka2 Nd8 Rc7 Rag6 Rcc1 Ne6 Rd1 Bh5 Qg2+ Kg4 h3 Kh4 Qf3 Bg4 Rdc1 Kh5 Rd1 Rg1 f1B Bh4 Bg2 Rf1 Nc2 Rf2 Rg1 Rf1 Ne1 Bf2 Rh1
k1NN3b/B1KPn3/N3Q3/4r3/1QbppR2/bB6/4Bb2/QRb1bnrq w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 f5 exf5 h5 d4 d6 c4 Nc6 b4 Nb8 g4 hxg4 d5 Kf7 Qd4 Ke8 Ra2 Be6 Rc2 cxd4 c5 Bd7 c6 Bc8 Rc5 dxc5 Ke2 e5 Kd3 g5 Kc4 a5 h4 g3 f4 g2 h5 a4 h6 a3 c7 Kd7 h7 e4 b6 a2 Kb5 a1B b7 c4 Kb6 g4 d6 g3 f6 c3 f5 c2 b5 Nc6 b8Q Na7 f7 Nf6 Nf3 g1B Nbd2 g2 Nc4 Bf2 Ng5 g1B Ne6 Bh2 Bf4 c1B Be2 Bcb2 Rb1 Ne8 f6 Qe7 Nd8 Bh6 f8Q Ng7 f7 Ba6 Qg8 Nh5 f8R Nc6 Be5 Ra7 Rf4 Ba3 Qa8 Bc3 Qe6+ Ke8 c8B Rg8 h8Q Bce1 Qb7 Ng3 Qg7 Nf1 Qg1 Bg7 Qb8 Bh8 Bb7 Na5 Bd5 Nc6 Qh1 Bhg3 Qb7 Bh4 Qb8 Rg1 Qb7 B4f6 d7+ Kf8 Nd6 Qh7 Kc7 Ne7 b6 Bc4 Nc8 Ra5 Qb8 Qh2 b7 Rb5 Qf3 Qh1 Qc3 Ra5 Qa1 Rb5 Rg4 Bg5 Bd6 Bgc1 Bc5 Bd3 Bb3 Bc4 Ba7 Re5 Rh4 Kg7 Qd5 Kf6 Qd6+ Kf5 Qb4 Kf6 Qa8 Kf5 b8N Kf6 Na6 Kf5 Nf7 Ke6 Qab8 Kd5 Q8b6 Bf4 Qf6 Bfc1 Qf5 Qh3 Rf4 Qh1 Kd8 Kc6 Qh3 Bb5 Qe6+ Kb7 Rg4 Bf6 Rf4 Ka8 Kc7 Bh8 Nd8 Bc4
4q1Qn/1q4b1/QqRq4/BQ1r1bN1/p1K1b1n1/R1N1pB2/1Pq4R/3Bk3 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 f4 gxf4 e4 f5 h4 fxe4 g5 Ra6 d5 cxd5 h5 Rg6 hxg6 d4 Kd2 h5 c4 d5 b6 Kd7 b7 Ke6 g7 Kf5 c5 e5 g6 f3 c6 Kf4 c7 Kg3 Nc3 Kf2 Nce2 d3 Kc3 h4 Qc2 h3 Rb1 e3 Qa4 d2 Ra1 d1Q Nf4 e4 Qb5 e2 Qa6 e1Q+ Bd2 d4+ Kc4 d3 Bc1 d2 Bg2 h2 Qd6 a4 Ra2 Nh6 g8B Ng4 g7 Nc6 b8R Rh5 Qe6 Ne7 Nge2 Rd5 Qf5 Qc2+ Nc3 d1Q Bd2 Ng6 Ra3 Nh8 Rb6 e3 Qe5 Qe8 Rc6 Bf5 c8Q Be4 Qa6 Bf5 Rg1 h1Q Ne6 Qh6 Bf7 Qg6 g8Q Bg7 Ng5 Qh6 Rc5 Qb6 Rh1 Qg1 Rh2 Qh1 Rc6 Be4 Bc1 Ke1 Bh5 f2 Bf3 Bf5 Qb8 Be4 Qbb7 Qdd2 Qb5 Qdd1 Q7a6 f1B+ Be2 Bh3 Bf3 Qdd2 Bd1 Nh6 Bhe2 Bhf5 Bf3 Ng4 Rh4 Qdh2 Bd2+ Kf1 Be1 Qhb8 Rh2 Qd6 Bg3 Qhg2 Be5 Ke1 Bf6 Qdb8 Bd8 Q8b7 Bc7 Qg3 Bd8 Qd6 Bc7 Q6a7 Ba5 Qab6
kqb1RK1B/bqnQQ1RQ/b7/qN2p3/1N1pb1P1/B7/4nR2/r1b4B w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 h4 cxd4 e4 f5 f3 fxe4 f4 gxf4 Qd2 Ra6 Qe2 Rg6 Qd1 Rg5 hxg5 Bh6 Qe2 Bg7 Qd1 Bf8 Kd2 h5 c4 d5 b4 Kd7 g6 Kc7 b6+ Kb7 g7 d3 Kc3 a4 Kd4 a3 Kc5 h4 b5 e3 Nh3 d2 Ra2 f3 Bg2 d4 Qe2 d1B Nf2 h3 Nc3 h2 Nd3 Ka8 Nb4 Nf6 g8Q Nh5 Qh7 Ng3 Rb2 a2 b7+ Ka7 Rc2 a1B Ba3 f2 Qe1 f1B Rf2 e2 Bf3 Nc6 b8B+ Ka8 b6 Bb2 Be5 Bc1 Nb5 Bc2 Be4 Rg8 Bh8 Qe8 Kd5 Nd8 c5 Ne6 c6 Nc7+ Ke5 e6 Kf6 Bc5 Bd5 Qd8+ Kf7 Qd6 Bg2 Be4 Bf3 Re8 Kg7 Re7+ Kf8 e5 b7+ Kb8 Qc3 Ba7 Qc5 e1Q Bg2 Bfd3 Rhf1 Bc4 Bh1 Ne2 Rf7 Qd2 Rg7 Qe1 Rf2 Bcd3 Nc3 Ba6 Nb5 Qd2 Nc2 Qa5 Nb4 Qd5 Qd6 Rd7 Qe7 Qd6 Bf3 h1Q Bg2 Qd1 Bh1 Qb3 Qh5 Ne8 Rf4 Bb6 Rh7 Qaa4 Nc7 Bad3 Bb2 Ka7 b8R Bb7 Nba6 Qdb4 Rg7 Rd5 Rf3 Ra5 Rf2 Qab5 Rd8 Ra1 Ba3 Q5a5 Qh7 Qd6 Rc8 Qbd5 Nb4 Bda6 Na8 Qb8 Nc7 Qd7 Nb5+ Ka8 c7 Ba7 Rd8 Qc6 c8Q Nc7 Qcd7 Bc8 Re8 Qcb7
BNq1Qrqn/3K2B1/qpNN4/P2Q1R2/k1b1p1q1/2n1rQ1R/2r1q1R1/8 w - - 0 1 illegal: No possible last move
2K4N/3p4/n1Nr3k/R4QqB/1Q1RBrqN/2PQ1n2/1r2B1rp/2r1b2n w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Be3 g3 Kd2 Qb6 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Qd8 Kd3 a5 Kc4 f5 Kd5 Kf7 e4 Kg6 b4 h5 c3 a4 b6 a3 b5 d3 b7 f3 b6 f4 e5 d2 e6 a2 e7 h4 Kd6 h3 Na3 h2 Nb5 Ra5 Be2 Bh6 e8B+ Kg7 g6 f1R g5 f2 Nf3 Rg1 Nh4 Na6 b8Q f1N b7 f3 Qc2 d1R+ Qd3 f2 Nd4 Ng3 Nc6 f1Q Ne5 Ne7 Nf7 Rf8 Nh8 Kg8 g7 Qf3 Bh5 Rg2 Re1 Rd2 Red1 Rb2 Qf5 Rc5 Rd4 Ng6 Qd3 Kh7 g8B+ Kg7 Bd5 Rf4 Be4 Ne5 g6 Qa5 Ke7 Rc6 Qd6 Qb5 Kd8 Qg4 b8N Nh1 Qb4 Rd6 Nc6 Nf3 Kc8 Qe5 Qc2 Bg5 Qd3 Kh6 g7 Bd8 g8Q Qeg5 Qd5 Bc7 Rf1 a1R Qf5 Rc1 Rd1 Bb6 Rd5 Bf2 Rd4 Rcc2 Ra1 Be1 Ra5 Rc1
1rRQ4/1B4Q1/1qr2rp1/q1rB2pb/n1b2N2/Q1qNK1b1/1P2R3/R1B3k1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 g4 b5 h4 g6 a4 Bh6 axb5 Na6 h5 Bf8 f5 Nc7 g5 Ne6 h6 Ng7 f6 exf6 hxg7 fxg5 Kd2 Ke7 c4 Kf6 e4 Ke5 c5 Kf4 e5 Kg3 b6 Kf2 e6 d5 c6 f5 e7 a5 e8R h5 c7 a4 b7 a3 b8Q a2 Bg2 d3 Qb4 f4 Qc2 d4 Qa3 h4 Qcc5 f3 Re6 h3 Re7 h2 Bh3 Ra6 Qb6 Nf6 g8Q Be6 c8B Nd7 Qb5 Bc4 Qg7 Rc6 Qge5 Nb6 Qe6 Na4 Qg8 Qb6 Rf7 Bd6 Ne2 Bg3 Re1 h1Q Bhg4 Qh3 Qd8 Re8 Kd1 d2 Nbc3 Re5 Qbb4 Rec5 Rf8 Kg2 Bgf5 f2 Nd5 f1R Bfe6 Rf6 Nef4+ Kh2 Re2+ Kg1 Kc2 d1B+ Kd2 d3 Ke3 d2 Qbc3 Qh8 Nb4 Qg7 Rh2 Bh5 Nbd3 d1R Bb7 Qgc7 Bd5 Rf1 Rb1 a1Q Re2 Qa2 Rh8 Qab3 Qe5 Qc3 Ra1 Qba5 Qee7 Qcb6 Qg7 Rf8 Qdf6 Rb8 Rc8 Rf2 Qd8 Rf1 Ng2 Rf7 Nf4 Rff6
N3qR2/q2r1BB1/K2p4/2Rr1Q2/N1pN3k/4PRq1/QBn4q/r4nbn w - - 0 1 legal: proof: f4 e5 h4 exf4 d4 g5 b4 gxh4 a4 b5 d5 d6 a5 Nc6 Kf2 Ba6 c4 Qd7 cxb5 Qc8 b6 Qe6 b5 Bb7 a6 Qxd5 axb7 Nb8 Ra6 Qd3 Ra1 Qd2 g4 Ke7 g5 c5 g6 Kf6 g7 Kg5 Qe1 f5 Na3 a5 Kf3 h5 Qd1 h3 Ra2 a4 Rh2 h4 Ra1 c4 Nb1 a3 Qb3 a2 Bb2 Na6 b8R Rh5 b7 Qa5 b6 Ra7 Rf2 h2 Nc3 h1Q+ Bg2 h3 Na4 Nh6 g8Q+ Kh4 Qe6 Bg7 Rf8 h2 b8N Nb4 b7 Bd4 Na6 Ng4 b8B Nc2 Nc7 Nge3 Na8 Rd7 Ba7 Nf1 Rd1 a1Q Qa2 Qd8 Qe4 Bb6 Rd5 Qe8 Bg7 Be3 Bad4 Qc3 Qe6 Qa5 Bb2 Qa7 Rc5 Rg5 Nh3 Qg1 Qd5 h1N Qe4 Rh5 Ng5 Qh2 Ne6 Rg5 Nd4 Rh5 Bh3 Rg5 Rg2 Bg1 e3 Qg3+ Ke2 Qh2 Qd5 f3+ Kd1 f4 Be6 f2 Bf7 f3 Rg3 Rh5 Qe6 Rd5 Qf5 Qe4 Rg6 Qe8 Rf6 Nfg3 Kd2 f1R+ Kc3 f2 Nb5 Ra1 Nd4 Ne1 Kb4 f1Q Kb5 Qfh3 Bc1 Nf1 Bb2 Qab8+ Ka6 Q3g3 Qe5 Qc7 Rf3 Nc2 Qf5 Qa7+
Kq1RN1B1/2BN1nrb/1b2bb1p/5BQ1/Rq6/2Np4/1P1n4/RQn1kn2 w - - 0 1 illegal: No possible last move, all moves rejected
1k1r2BQ/1p1R2qB/1r2nr1P/N3b1NN/2qb4/3K3b/bQ1p4/1rBQ3R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 d3 c5 d4 cxd4 g4 gxh4 Bf4 h5 Bg5 h3 Bc1 h4 Bd3 Nc6 Be4 Ne5 Bd3 Ng6 Bc4 Nf4 Bf1 Nh5 gxh5 Ra7 Bg2 Ra6 Bf1 Ra8 Kd2 d5 f4 Kd7 c4 Kc7 a4 e5 h6 h2 f6 h3 a5 d3 f5 d4 a6 e4 c5 b3 a7 e3+ Ke1 d2+ Ke2 d3+ Kf3 b2 Ke4 e2 c6 e1B f7 Qe7+ Kd4 Bg3 f6 Bg7 Na3 b1R f8N Rb6 Ng6 Be5+ Ke3 Qf7 Nf3 Qc4 f7 Nf6 f8Q Nd7 Nf4 Nc5 Qf6 Rf8 Ng5 Ne6 Nh5 Rb8 Qf2 Rf6 a8Q Bd7 Bg2 Rd8 Be4 Bh8 Bh7 Bg7 Qg4 d1B Qb2 Bb3 Qd1 Ba2 Bg8 Qa4 Nc4 d2 Na5 Qc4 Rf1 h1R Rb1 Rg6 Rf7 h2 Bh7 Rf6 Qc8+ Kd6 c7 Rhf1 Qa8 h1Q c8B Kc7 Ra1 Qhh4 Rb1 Qcg4 Kd3 Qg2 Ra1 Qc4+ Ke3 Qb5 Nf3 Bg3 Qdc2+ Nc5 Re7 Bd6 Kd4 Qg6 Ng5 R6f4+ Ke3 Rb4 Qa3 Qc4 Bb2 Re8 Qac3 Rff8 Rh1 Bh2 Ba3 Rb1 Qd1 Bf6 Qcb3 Qg7 Bc1 Bc3 Qb5 Rff6 Qb2 Bhe5 Rf7 Kd8 Re7 Bh3 Bd7+ Kc7 Be6+ Kd6 Bf7 Ne6 Rc7 Bcd4+ Ke4 Re7 Qh8 Rd7 Bfg8 Rd8 Rf7 Rd7 Re7 Kc7 Rf7 Kc8 Re7 Rd8 Rd7 Qa4 Kd3 Kb8 Qbc2 Qc6 Qb2 Qc4+
1n2q1b1/rp2N1B1/nk6/1npn1N1R/BqKR1P2/1QN4R/3q4/3nnQ1Q w - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 c4 dxc4 f3 g5 f4 Ra5 h3 Rf5 h4 Bh6 gxf5 g4 Nc3 Bg5 Nb1 f6 e5 fxe5 hxg5 e4 Ke2 Kd7 a4 Kc6 d4 e5 f6 h5 g6 h4 d5+ Kb6 f7 c5 f8R c3 g7 b3 d6 c2 d7 h3 Bb2 c1Q Nd2 h2 Rf7 e3 Kd3 e4+ Ke2 g3 Ra3 g2 Ngf3 g1Q Nd4 Qe8 d8N Be6 Nb1 Nf6 g8Q Nd5 Nc3 Qg7 Nf5 Qd4 Qe1 Qb4 Rd7 Rh3 Qh8 Bg8 Nc6 Rg3 Ba1 b2 Nce7 b1N Bg2 Rg6 Qf1 Rd6 Rb3 Na3 Qh4 Nb5 a5+ Ka7 a6 Kb6 a7 Rh6 Rg1 h1N a8Q Nf2 Rh1 Nd1 Qa4 Rd6 Qh6 Rc6 Rh5 Qb2+ Ke1 e2 Ra3 Qc1 Qb3 Qe3 Bf3 Qf2+ Kd2 e1N+ Be2 Nc2 Bb2 e3+ Kd3 Qe1 Bg4 e2 Qh8 Qa5 Kc4 Qd2 Bf3 e1N Rd6 Nf2 Bd1 Ncb4 Bc2 N4a6 Rd8 Nf6+ Rd5 Re6 Rd4 Nd5 Ne4 Ndb4 Qa2 Nf3 Rd8 Nd1 Rh1 Nac7 Bg7 Ka6 Ba4 Ne1 Rd4 Ncd5 Rc3 Ka7 Qb3 Ra6 Rcd3 Kb6 Nc3 Ra7 Qhh3 Qd7 Qhg2 Qd8 Rh5 Qe8 Rdh3 N4a6 Qgh1 Qb4+
n1NQ2b1/2nQ2R1/4N2n/2br1R2/K4p1p/pqr3NP/B1kB2QB/1q3r2 w - - 0 1 legal: proof: b4 c5 a4 b5 f4 g5 d4 gxf4 dxc5 d5 e4 bxa4 e5 d4 e6 d3 b5 Bxe6 Rxa4 Bd7 Ra1 Bc8 Kd2 Kd7 Kc3 Ke6 Kb3 Kd5 g4 Kd4 c4 a5 g5 h5 g6 f5 b6 e5 b7 f3 g7 f4 h3 d2 c6 e4 c5 e3 c7 f2 c6 h4 Ka4 e2 Nf3+ Kd3 Nc3 Nd7 b8B Nh6 g8Q Bc5 Qg2 Qg8 Ne4 Bb7 Ba7 Rd8 c8N Nb6+ Kb5 a4 c7 Ba8 Ng3 Bd5 Rg1 Na8 Nd4 a3 Ka4 Be6 Rb1 Rd5 Rb5 Kc3 Ra5 e1Q Bc4 f1R Ba2 Bf7 Qg4 d1N Ne6 Ne3 Bd2+ Kc2 Qg5 Rh7 Qd8 Qb1 Rb5 Rg7 Bb6 Rgg5 Ba7 Rd3 Ra5 Rc3 Rb5 Bf8 Rf5 Nd5 Ne2 Qh8 Qh2 Rgg3 Nb6 Rb3 c8Q+ Ndc7 Qcd7 Rb5 Nc8 Rd5 Bf2 Rf3 Bg3 Bg8 Qh1 Bc5 Bh2 Qf6 Rg7 Qfb2 Ng3 Rc3 Qg2 Qb3+
3b1qqR/2n2B2/1b4R1/r1rp2BR/k3n1Qp/Nb2B1p1/2PQn1N1/3K2N1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 Qb6 Bh6 Qc7 Bc1 Qd8 h4 f5 exf5 g5 g3 gxh4 Qe2 hxg3 Qf3 Nf6 Qd1 Ng8 f4 e5 b4 a5 f6 h5 b6 d3 b5 a4 f5 a3 b7 e4 b6 h4 Rh3 a2 Be2 e3 Na3 Bc5 Rh1 Na6 b8R Nc7 b7 Bb6 Qd2 Ra5 Kd1 Rh5 f7+ Ke7 f8N Kd6 f6 Kc5 f7 Nf6 Bf3 Ne4 Ng6 Qg8 f8B+ d6 Be7 Be6 Bd8 Bb3 Nf4 Rd5 Rb1 a1B Bg5 Bf6 Bh5 Bd8 Ng2 Qf8 Bf7 e2+ Ke1 Kc6 Ra8 Rf5 b8Q Rfc5 Qc8 d5 Qg4 Qg8 Qd1 Qf8 Bce3 Qg8 Qd2 Qf8 Nc4 Kb5 Na3+ Ka4 Rc8 Na8 Rc6 Nc7 Rg6 Qg8 Bf6 Ba2 Be6 Qg7 Rh2 Ba7 Qd1 Be7 Bf4 Nf2 Rb8 Bb6 Rh8 Qg8 Ne3 Bd8 Kd2 e1Q+ Kc1 Nh3 Rf2 Bb3 Ng2 Ng5 Be3+ Ne4 Rf5 Qf2 Rfh5 Qf5 Bfg5 Qff8 Bf7 d2+ Kb1 Qgg7 Qe1 d1N Kc1 Nc3 Qd2 Ne2+ Kd1 Qgg8
1k1bB1N1/q3RKn1/r6p/1r2R2B/1QPBp3/2bQ1q2/1q1p2Q1/rn2NN2 w - - 0 1 legal: proof: f4 b5 e4 f5 d4 c5 a4 cxd4 axb5 Bb7 g3 fxe4 g4 Bd5 f5 Be6 f6 gxf6 g5 Bg4 h3 f5 hxg4 f4 Kd2 e5 b4 a5 c4 d5 b6 Kd7 b7 Kc7 g6 d3 Kc3 a4 b5 e3 g5 d4+ Kb2 h6 g7 e2 g6 e1B Qb3 f3 Be2 f2 Nf3 f1R Be3 d2 Rh5 d1Q Qd3 e4 Nbd2 Na6 Re5 Ne7 g8N Nb4 g7 Nbd5 Rb1 Bh4 Ne1 Nc3 Bh5 Ra6 Ra1 Rf5 Nf1 Nb1 Bg1 Qa8 b8Q+ Kd7 b6 Qa7 b7 Qf3 Qe8+ Kc7 Qg6 Kb8 Qg2 a3+ Kb3 a2 Kb4 Rg5 Kb5 Nf5 Be3 Ra4 Kc6 Ra6+ Kd7 Bb4 Ke8 Bc3 Kf7 Rh7 Qf2 Rg1 Qg2 Bd8 Bf2 Nd2 Rb1 a1Q Rb6 Nb1 Rbe6 Qa3 Re7 Qb3 Qc2 d3 Bd4 d2 Qd3 Na3 Nf6 Rh8 g8B Ng7 Bh7 Nb1 B7g6 Nf5 Ng8 Qb2 Kf8 Rh7 Bf7 Rg7 Be8 Rg5 Kf7 Ng7+ Rf5 Qa8 Ne3 Na3 N1c2 Ra1 Nf1 Nb1 Ne1 Qa7 Re6 Kc7 Re7+ Kd6 b8Q+ Qc7 Qb3 Qa7 Rf4 Rb5 Rf5 Qd7 Qb4+ Kc7 Bc5 Kb8 Bd4 Qd1 Rc5 Qa7 Re5 Qf3+
K1qN2b1/2pp2np/Nr6/Rr3Q2/b5BQ/Pn3bB1/2R1Nn2/k3BqQ1 w - - 0 1 illegal: No possible last move
4B2R/B3b1Q1/3Qb3/2rRbn1n/p1rQ2b1/kp2b3/1p3P1B/K2NNq1N w - - 0 1 illegal: No possible last move, all moves rejected
1R1nn1QN/3p3n/rp4NB/BKQ1p1P1/2R5/1qr5/R1bQ1Nkn/b4r2 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 h5 exf5 c5 b4 axb4 Bh3 cxd4 fxg5 Qb6 g6 Qa5 g5 Qd8 Bg4 hxg4 Ke2 g3 Kd3 g2 Kc4 b6 h4 d3 a4 d2 f6 b3 h5 b2 a5 Nc6 a6 Bb7 a7 Bg7 Nf3 g1N Ne5 Nf3 h6 Nh2 Nc3 b1N Ne4 Nc3 h7 Nb5 Ra2 Nc7 Nf2 e6 f7+ Ke7 c3 Kd6 f8B+ Qe7 Re1 Nf6 Re4 Rc8 a8R Nce8 Rb8 Nd8+ Kb5 Kd5 Rc4 Qa3 Qe1 d1R Bd2 Rg8 h8N Nh7 Qe2 Bf6 g7 Rf1 Neg6 Bd4 Be1 e5 Qd2 Ba8 Nf7 Rh8 g8Q Rc7 Bg7 Ra7 Bh6 Ra6 Qg7 Rf8 Nfh8 Rf3 Qg8+ Rf7 Ng4 Ke4 Nf2+ Kf3 Rcc8 Qc1 c4 Ba1 c5 Be4 c6 Kg2 c7 Qc3 Qd3 Qa3 Ba5 Rf3 Qd2 Nb7 Rd8 Rg3 c8Q Rc3 Qc5 Bc2 Rdc8 Nd8 Qce3 Ne6 Rc4 Nd8 Qc5 Qb3+
1nNb4/Qq1b1p2/1R4r1/P1KBr1B1/3p4/Np3nk1/Q1RQ2n1/BR2nq2 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 d4 c5 g4 h5 gxh5 b5 cxb5 cxd4 Qd3 axb4 Qb3 Qg5 Qd1 Qd8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 a4 g5 e4 f3 h4 g4 b6 d6 b7 d3 h6 g3 h5 d2 a5 Kf4 e5 b3 h7 g2 e6 f2 h6 Bg7 e7 d5+ Kc5 Qe8 Ra2 Bg4 Na3 Bh3 Bc4 f1Q Nf3 g1N Nd4 Bd7 Ndb5 Ra6 Na7 Nf3 Rc2 Rg6 Nc8 Kg3 Qe2 d1N Qd2 Qd8 e8R Ne3 Re6 Ne1 Rb6 N3g2 Rg1 Ne7 Rh1 Re8 h8Q Ne3 h7 Bf6 Qg8 N7f5 h8B Bg5 Ba1 d4 Bd5 N3g2 Qh7 Re5 Qh2+ Kg4 Rg1 Nh4 Rh1 Nhf3 Rg1 Nc6 b8Q Qc7 Qa7 Bd8 Qd1 Qa6 Bg5 Qcb7 Qb1 Nb8 Qa2 Qe2 Qf4+ Kh3 Qd2 Qf1 Qf2 Qfa6 Rc3 Nc2 Rb1 Qf1 Qd2 Nce1 Rc2 Kg3
1BRR2R1/2N1pbbr/r5n1/NQ1B3n/1B1Q4/4K2p/p1P1r1r1/2N1q1qk w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 f4 Kf6 g4 d5 b4 h5 b6 a5 b7 d3+ Kf3 d4 b5 a4 b6 h3 Qe2 h2 Bg2 a3 Bd2 h4 Bb4 a2 Na3 d2 Rd1 d3 Nc4 Nc6 b8Q Ne5+ Ke3 Ng6 b7 Bg7 Bd5 Rh7 Na5 Be6 Qd6 Qf8 b8B Ra6 Qd7 Qc8 Qb5 h3 g5+ Kf7 f6 Qc3 Rb1 d1R f5 Rd2 Rb3 Qa1 Rc3 Qe1 Rc8 Rh5 Nf3 Rh7 Rg1 h1Q Nd4 Qg2 Ndb3 Qh2 Rg2 Qhg1+ Rf2 Rd1 Nc1 d2 Nd3 Ra1 Nc1 d1R Rd8 Rd4 Rc8 Rg4 Rd8 Qgf1 Rf4 Rg2 Rc4 Rf2 Rcc8 Qg1 Bg2 Bd7 Ba8 Be8 Bd5+ Kf8 f7 Nf6 Rd6 Nh5 Rdd8 Ne5 g6 Rb1 Ke4 Rb3 Kd4 Rg3 Ke4 Rgg2 Kd4 Bf6 Ke3 Kg7 f8N Kh6 g7 Kg5 g8R+ Kh4 Ne6 Ng6 Nc7 Bg7 f6 Kg3 f7 Kh2 f8Q Kh1 Qf4 Bf7 Qd4 Rxe2+
Q1K3NB/pr2Q1pk/1B1q1B1p/2R1r3/2nN1Q1N/R1b5/1Pnb4/bq5b w - - 0 1 illegal: No extended proof kernel
1q3kB1/N3RB2/R3QNQ1/2Q3Rq/3pK1Pn/4p2b/brb4p/b2b2Br w - - 0 1 legal: proof: d4 c5 a4 b5 axb5 g5 e4 d5 f4 Qb6 h4 gxh4 Kf2 Na6 Nh3 Nc7 Kg1 cxd4 f5 d3+ Kh2 Qf2 Ng1 d4 f6 Nd5 exd5 Qxf6 Ne2 Qf3 Ng1 Qf2 c4 h5 b4 a5 c5 e5 d6 f5 d7+ Kf7 d8Q f4 c6 a4 c7 a3 b6 e4 b7 h3 b8Q d2 b5 a2 b6 h4 b7 f3 Qe1 d1B Qd5+ Ke7 Qc5+ Kf7 Na3 Bf5 c8B Nh6 Qg3 Qe2 b8R f2 Rb5 Rb8 Be3 Qh5 Be6+ Ke8 Bd3 f1B Nf3 Bh7 Bec4 Nf5 Ng5 Be7 Kg1 h2+ Kf2 h3 Bg8 Nh4 Bdc4 Kf8 Bcf7 Bc4 Rg1 h1B Rb7 Bg6 Ra7 Rb2+ Qe2 Bf5 Nb5 Bd3 Rc7 B3c2 Na7 Be6 Qgg4 Rh7 g3 Bg2 Qec4 Bd6 Re7 Bc7 Qgf5 Ba5 Qg6 Bc3 Qa6 Bd5 Qae6 Rh6 g4 Bdb3 Re1 Bf1 Kg3 Rh7 Bg1 e3 Kf4 Bd5 Rc1 a1Q Ne4 Ba2 Nf6 Qb1 Re2 Rb5 Rd2 Ba1 Rd3 Rb2 Ra3 h2 Ra6 Bh3 Qd3 Rg7 Ke4 Rg5 Kf4 Rf5+ Ke4 Be2 Rf1 Bed1 Rf2 Rf3 Rf1 Rg3 Rf5 Rf3 Rg5 Rf1 Bf2 Rh1 Bg1 Qc1 Kf4 Qd2 Qg6 Qb4 Ke5 Bcb3 Kf4 Qb8+ Ke4 Bbc2+
3B4/kqRKn2Q/1q2pnrr/N2QB1R1/8/Nn1n1pP1/2B2Qpn/3b2N1 w - - 0 1 legal: proof: e4 b5 d4 h5 g4 hxg4 a4 c6 d5 cxd5 axb5 dxe4 Qd3 e3 Qd2 Rh5 Qd1 Rh8 Bg2 g5 Qd2 g3 Ne2 g4 Kf1 Bg7 Na3 Be5 Qd1 Bc7 Bh3 g2+ Ke1 g1N Nb1 g3 Bf1 g2 Ra3 Nf6 Ra1 Bg3 fxg3 Ng8 b4 f5 c4 d5 h4 Kd7 b6 Kc6 c5 Kb7 b5 a5 h5 f4 h6 a4 h7 e6 Na3 f3 Rh5 d4 Rg5 Bd7 c6+ Kc8 c7 Nh3 Ng1 Kb7 Bd3 e2 Kd2 e1N Bc2 d3 Kc3 d2 Kd4 Qe7 Ke5 Nf6 c8N Nf2 Na7 Rg8 h8Q Rg6 Qh7 Qb4 Qe2 d1Q Nc6 Qd3 Be3 Qdb3 Rc1 Ra7 Bc5 N2g4+ Kd6 Nh2 Qf2 Nd3 Na5+ Ka8 Ke7 Nc6+ Kd6 Qe4 b7+ Kb8 Be3 Ne7 Bb6 Ra8 Bd8 Rh6 Rc5 Ka7 Rg5+ Qe3 Bd1 Rc8 Rc7 Bc6 Bc2 Qb6 Nb1 a3 b8B+ Ka8 Qf5 a2 Na3 Qb7 b6 Ba4 Qh7 Qb2 Bb1 Bd1 Bc2 Nfd5 Kd7 a1N Ke8 Nb3 Kd7 Qa6 Rc5 Qd4 Be5 Qe4 b7+ Ka7 Rc4+ Qd4 Rc7 Qdb6 Rc3 Rc5 Rc4 Rb5 Rc3 Rb4 Rc7 Rg4 Rh5 Rgg6 Rg5 Qd4 Rf5 Kb6 Rg5 Qa7 b8Q+ Ka6 Qa8 Qb6 Qc6 Qb7 Qb5+ Ka7 Qc6 Nc3 Qcc5 Ne4 Qd5 Nf6+
r4n1R/1rq1Ppnn/RBq2N1b/N2Q2pQ/1k6/5nn1/2p3B1/1B2NR1K w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 g5 f4 Bf5 h4 Bg6 f5 e6 h5 exf5 hxg6 fxg4 Ra3 g3 Ra4 Qc8 Ra1 Qd8 d4 Ke7 b4 Kd6 e4 c5 b6 a5 b7 h5 e5+ Kc6 g7 Kb5 e6 g2 Kf2 a4 d5 h4 e7 a3 d6 a2 d7 h3 Nf3 g1N Be3 h2 Kg2 Qc7 d8Q Nd7 b8N Ngf6 g8B Bh6 Bh7 Nf8 Ne1 Nf3 Nd2 Qc6 Bhd3 N6h7 Nd7 Rb8 Qe2 Rb7 Bb1 Qc7 Rg1 h1N Nb3 Ng3 Nf6 Nf5 Qdd1 Ng7 Kh1 Ka4 b5 c3 b6 c2 Qg2 c1N Na5+ Kb4 Qge2 c4 Qd5 c3 Bg2 Qc6 Rf1 Rg8 Qed1 Ne2 Bd4 Nd7 Be3 Ra8 Bf2 Ndf8 Be3 Rc7 b7 Rd7 b8R+ Rb7 Q1d3 Qc7 Qg6 Qc6 Qh5 Qc7 Bd3 Qc6 Bb6 Qc7 Rd1 a1Q Bb1 c2 Rd3 Qa4 Ra3 Qac6 Ra1 Nfe6 Rh8 Nef8 Nc4 Qb8 Ra6 Qbc7 Na5 Ng3#
R1n2K2/pk1NBBQ1/3q1R1q/2b2r1b/4N3/q1Q2p1N/p4P1q/n1Bq2R1 w - - 0 1 legal: proof: b4 c5 bxc5 b5 e4 d5 a4 bxa4 h4 dxe4 c4 g5 Qc2 gxh4 Qd1 Na6 Nf3 Rb8 Ng1 Rb5 cxb5 Bg4 Bc4 Be6 Bf1 Bc8 Ke2 Kd7 Ke3 Kc7 Kf4 h5 Ke5 f5 g4 a3 d4 f4 g5 f3 b6+ Kb7 d5 a2 d6 h3 d7 h4 Ke6 h2 Kf7 e5 g6 h3 g7 e3 Ba3 e4 Bc4 e2 Qc1 e1Q Be6 e3 Nc3 e2 Ne4 Qb4 Qc3 e1Q Bc1 Ne7 g8Q Qa3 Qgg7 Rh5 Bc4 Qc7 d8B Bg4 Rb1 Nc8+ Be7 Qd1 c6+ Kb8 b7 Rf5+ Kg8 Nb4 Bf7 Nc2 Rb6 Qcd6 Ra6 Kc7 b8N Bh5 Nd7 Na1 Bh6 Nb6 Bc1 Kc8 c7 Kb7 Qg6 Nc8 Qgg7 Q6d4 Rf6 Q4d3 Ne2 Qdd6 Rg1 h1Q Nf4 h2 Nh3 Qg2 Bh6 h1Q Bc1 Nb6 c8R Qgh2 Ra8 Nc8 Qg3 Bh6 Qg6 Be3 Kf8 Bc5 Qg3 Q1g2 Qg8 Qg5 Qg7 Qh6
Rr1q2b1/q2b2Q1/1nk1r1B1/2NRPqNQ/KB1B2N1/2p4r/p3p3/R6r w - - 0 1 illegal: No possible last move
2B2k2/2n1R3/4qq1p/1KRB1r2/1P1p1NNQ/4pq2/rq1Q1bB1/r2Q1Rn1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 g4 Qc7 f5 Bb7 Bd2 Bd5 Bf4 gxf4 h3 Qd8 g5 Bf7 Nd2 Bh5 Nb1 Bg4 hxg4 Bg7 Rh2 Bh6 Rh1 Bf8 Ke2 e5 b4 d5 c4 a5 g6 h6 f6 a4 c5 a3 g5 e3 Kd3 f3 c6 f2 b6 e2 g7 e1R b7 a2 c7 Qe7 c8B Qd6 g6 Na6 b8Q Qe6 Qd6 Nc7 Nh3 Ne7 g8Q Nf5 g7 Nh4 Na3 Nf3 Rc1 a1Q Nc2 Ra2 Nf4 Ng1 Ne3 Qb2 Rc5 Rh7 Qd2 Rea1 Ng4 Rh8 Bg2 f1Q+ Ne2 Qf2 Nf4 Qh4 Qh7 Be7 g8B Kf8 f7 Qhf6 Qe4 Rh7 Qf5 Rg7 Qh5 Rg5 Qh4 Rf5 Qd7 Bd8 Rh3 Be7 Qa4 Bd6 Qad1 Be7 Re3 Bd6 Q2c2 e4+ Kd2 d3 Re2 Ke7 f8R d4 Rf7+ Ke8 Re7+ Kf8 Re1 Be5 Rf1 e3+ Ke1 Qd6 B8d5 Qde6 Qd2 Nh3 Qdf2 d2+ Ke2 Ng1+ Kd3 Bd6 Kc4 Be5 Qc1 d1Q Qfd2 Qf3 Qcd1 Bd6 Ne2 Bg3 Nf4 Na8 Kb5 Be1 Rg7 Bf2 Re7 Nc7+
n1RqBk2/qbQ5/RnQqp3/NK4b1/2n1pB1q/1pP2N1N/4Rr2/Q7 w - - 0 1 legal: proof: g4 a5 e4 b5 f4 g5 fxg5 f6 d4 c6 h4 Ra7 h5 f5 b4 fxe4 g6 axb4 g5 Ra6 d5 cxd5 g7 Rg6 hxg6 d4 Ke2 h5 a4 d5 c3 d3+ Ke3 e6 Kd4 d2 a5 h4 a6 b3 a7 b4 a8Q h3 Qh5 d1N Qe2 h2 Qc6+ Nd7 Qa2 b2 Nd2 b1Q Bb5 b3 Nh3 Bb7 Re1 h1Q Nf3 Ne7 g8R Nb2 g7 Nc4 g6 Nc8 Re2 N8b6 Bf4 Na8 Qa7 Qb2 Ra6 Qa3 Qab6 Rh5 Qbc7 Rf5 Rh8 Qe1 g8Q Qeh4 g7 Rf7 Qh7 Qa2 g8N Be7 Ba4 Bg5 Ne7+ Rf8 Qh6 Kf7 Rg8 Ndb6 Kc5 d4 Kb5 d3 Qh8 d2 Qd4 d1Q Qg1 Q1d6 Qa1 Q8d7 Rh8 Rb8 Rc8 Qd8 Nf5+ Kf8 Ne3 Nb2 Nc4 Qaa3 Na5 N2c4 Re1 Qc1 Re2 Nb2 Qc4 Nd5 Bd2 Qg1 Nh2 Kg8 Bc1 Q8f8 Rd8 Qa7 Q4c5 Nd1 Kc4 Ndb6+ Kb4 Rc8 Bc6 Rb8 Kb5 Nb2 Bd7 Kg7 Q5c6 N2c4 Bd2 Qf6 Rh8 Re8 Bc1 Re7 Rc8 Rf7 Be8 Kf8 Bd2 Qfe7 Bc1 Rf2 Nf3 Qf6 Bf4 Qfd8
r3N2q/1BRbQbr1/2P5/1n1pp3/2k3N1/rqB2r1q/5Kp1/1QBR2QN w - - 0 1 legal: proof: d4 a5 e4 c5 f4 cxd4 b4 f5 g3 fxe4 f5 axb4 Bc4 g5 Bb5 Nc6 Bf1 Ne5 h3 Bh6 h4 g4 Qd2 Bg5 hxg5 Ng6 Qd1 Nf4 gxf4 Qa5 Bh3 Qb6 Bf1 Qd8 c4 Kf7 a4 h5 a5 b5 c5 e5 f6 Ke6 f7 Kd5 f8B d3 f5 g3 c6 h4 a6 b3 g6 g2 a7 e3 f6 b4 g7 d2+ Ke2 h3 f7 h2 Ra3 b2 Nf3 b3 Bd6 Kc4 f8Q Ne7 g8N Nf5 Qe7 Rh3 Rg1 h1Q Nh2 Rf3 Bb4 d5 Bc3 Nd6 Nf6 Bd7 Ne8 Nb5 Ng4 Qh3 Ra6 Qc8 Rb6 Qb8 Rb7 Qd8 Qc2 d1B+ Ke1+ e2 Rc7 Qb8 Qch7 Bc2 Rh1 Bg6 Nd2+ Kd3 Rg1 b1R Ne4 b2 Ng3 Kc4 Nh1 Bf7 Qf5 Ra1 Qb1 Rg3 Kf2 Ra3 Ng7 Qbh8 Ne8 Rb8 a8Q Rb7 Qf5 b1Q Qa7 Qb3 Qb1 Rd3 Qb6 e1R Qa7 Re4 Be2 Re3 Rd1 Rg3 Bf1 Rb8 Qe3 Rba8 Qe1 Bde6 Be2 Bf5 Qg1 Bd7 Qf6 Nd4 Nh6 Rg7 Ng4 Kc5 Qg5 Rg3 Ba6 Nb5 Bb7 Kc4 Qe7 Rf3+
qNQ5/pbBRn1p1/B1p2RN1/5Q1q/Rn1n3n/1k1KPQr1/5B2/r5q1 w - - 0 1 legal: proof: b4 b5 f4 h5 a4 e5 axb5 exf4 g4 hxg4 b6 c6 b5 Bc5 b7 Bd6 b6 Bc7 bxc7 d5 c4 dxc4 h4 Kd7 d4 Ke6 Kd2 Kd5 e3 f5 h5 f3 h6 c3+ Kc2 f4 h7 g3 Na3 f2 Bd2 g2 Ne2 g1N Rh6 f3 Nb5 Kc4 d5 Ne7 d6 Na6 b8B Bb7 c8Q Kb4 Bc7 Rb8 d7 Kc4 Rf6 Nb4+ Kc1 c2 Ra4 Kb3 Nf4 Qf8 Bd3 f1Q d8R f2 Ng6 Qh3 Qf5 f1Q Rd7 Nf3 Be1 Qh5 Bf2 Nh4 Kd2 Qg1 Qdf3 c1N Bf1 Qc8 Be2 Rf8 h8Q Rf7 Bd3 Ne2 Qg8 Nd4 Be2 Ba6 Qe8 Qb7 Qc8 Qa8 Bd3 Bb7 Be2 Nbc2 Kd3 Rf8 Be5 Rh8 Nc7 Rf8 Na6 Nb4+ Ke4 Rh8 Bc7 Rh6 Qh8 Rf8 Nb8 Rf7 Qc8 Rf8 Nf4 Rg6 Ba6 Rg3 Ng6 Ng8 Re7 Rd8 Ref7 Rd5 Rd7 Ne7 Qh8 Rc5 Qf8 Rc1 Qc8 Na2 Kd3 Rf1 Kd2 Ra1 Kd3 Nb4+
4R1R1/p1bp1rQb/1r2n1Qr/1RBn1B2/6N1/1nP4k/4p1Nn/QNnK4 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g6 axb5 Qc7 d4 cxd4 g5 fxe4 f4 Qc6 f5 gxf5 h5 Qg6 hxg6 f4 b4 h5 g7 Kf7 b6 Ke6 g6 Kf5 c3 e5 b5 f3 b7 Kg4 b6 e3 Bc4 d3 Ba3 e4 Qd2 e2 Qb2 d2+ Kf2 d1R Nd2 e1N Bd5 h4 Rc1 h3 Bc4 e3+ Kf1 h2 Bd6 f2 Ke2 f1N Rb1 Ng2 Ngf3 Kh3 Bd3 Na6 b8R Bb7 Re8 Ne7 g8Q Be4 b7 Nc5 b8Q Nb3 g7 Nd5 Ne1 Rh6 Bc5 Bd6 Qb6 Rb8 Rg1 h1N Qa1 Bc7 Qg6 Nf2 Qh8 Rc1 g8N Rb6 Nf6 Nh2 Qhg7 Rd1 Bc2 Nd3 Ng4 Rc1 Rb2 Bf5 Bb1 Rc2 Kd1 Ngf4 Ng2 Ndc1 Ba3 Ne6 Bc5 Na5 Rb4 Nab3 Rb5 Rb2 Bd3 Rc2 Nb1 Rf2 Q6f6 Bh7 Qfg6 Rf7 Bf5 Bf4 Rf1 Bc7 Rf4 Kg3 Rg8 Kh3 Re4 Ned4 Re7 Ne6 Ree8 e2+
1qq2BBQ/1b2NPq1/3qR3/2p1r1R1/qQ6/Bp2R2p/n1q2kNN/4r2K w - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 f4 f5 c4 dxc4 Bg2 g5 Bf1 Nc6 h3 Nd4 h4 Bh6 Kf2 fxe4 Ke1 Nf5 gxf5 g4 Nh3 Nf6 Ng1 Bg5 hxg5 Ng8 Kf2 Kf7 Kg2 e5 d4 b5 a4 h5 f6 Ke6 f7 Kd5 f8B c5 g6 g3 f5 e3 f6 Ke4 a5 b3 f7 e2 a6 e1Q a7 b2 g7 b4 d5 c3 d6 h4 d7 c2 Bc4 Qd2+ Ne2 Ke3 Rg1 e4 Bb5 h3+ Kh1 g2+ Kh2 Ne7 g8Q Rh5 Bd3 Bb7 Qh8 Nc6 Ra3 Re5 Qe1 Qc8 d8N b3 Ra6 Nb4 Re6 Na2 Nf4+ Kf3 Qeh4 e3 Nc6 e2 Bh7 e1Q Ne7 Qe4 Bg8 Qd6 Nd2+ Ke3 Qg4 b1Q Nf3+ Kf2 Ba3 c1Q Re1 Rb8 a8R Qa4 Re3 Qbc2 Ra6 Q1d1 Rg6 Qdc7 Rae6 Qdd6 Rg5 Ra8 Nh5 Q7b8 Qb4 Ra5 Nf4 Kf1 Kg3 g1Q+ Ng2 Ra8 Re4 Qgd4 Kh2 Kf2 Re3 Qg4 Kh1 Qg3 Rf5 Qg7 Rg5 Ra6 Nh2 Rb6 Qc4 Rb4 Qc3 Rd4 Qb4 Rde4 Rd3 Re2 Re3 Re1+
Nq2r1q1/2r1Q1B1/nR1K1B2/2p2r1p/1n2n1r1/PN1Q4/1RpNBk2/1Rq5 w - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qb3 f4 Kd1 f3 Kc2 f2 Kb2 Ra6 Qd1 Ra7 Kc2 Ra8 Ba3 f5 Qc1 g5 Qe1 f4 Qd1 g4 Bc1 f3 h3 Bd6 Nc3 Be6 Nb1 Bf4 gxf4 g3 Qe1 Nf6 Qd1 Bg4 hxg4 Ng8 e4 Kd7 d4 Ke6 g5 b5 d5+ Kd6 a3 Kc5 e5 h5 f5 g2 e6 c6 f6 b3+ Kc3 b2 e7 Ra5 e8N Ne7 d6 Na6 Be2 f1N f7 f2 f8B Ng3 d7 f1R g6 Rf7 Nd2 b1Q Ngf3 g1R Bb2 Qc1+ Qc2 Kd5 g7 c5 g8Q Nc6 Ra2 Ncb4 Qg5+ Rf5 Nd4 Ke5 Qe7+ Kf4 Nc7 Qe8 Qf7 Ke3 d8R Kf2 Bg7 Qg8 Qe7 Rh7 Rd6 Re1 Bd1 Ra4 Rb6 Re6 N4b3 Ree5 Qg5 Re8 Bf6 Rg7 Na8 Rc7 Be2 Qe1 Ba1 Ne4+ Kb2 Qg1 Qd3 Qg3 Rb1 c3+ Kc1 c2 Kb2 Qd6 Qg7 Qd8 Qe7 Qb8 Nc1 Nd5 Kb3 b4 Kc4 b3+ Kb5 b2 Ncb3 Rb7 Kc6 Rd7 Rg1 b1Q Rb2 Qc1 Rd1 Ng3 Rg1 Rc7+ Kd6 Rg4 Re1 Ndb4 Rh1 Qg1 Bg7 Qh2 Rhb1 Qg1 Ra2 Qe1 Baf6 Qc1 Rab2 Ne4+
1Q1r1r1r/1Q1P1p2/N2KQ1Bq/1R5n/2n3N1/2r1nRnp/p6N/4BBrk w - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 Kf2 e5 Ke1 exf4 Nh3 h5 Ng1 g6 h3 Bh6 g5 Bg4 gxh6 g5 Na3 Bd7 Nb1 g4 Qb3 g3 Qd1 Bg4 hxg4 Qe7 Qb3 Qg5 Qd1 Qd8 d4 Kd7 Kd2 Kc6 Kc3 Kd5 Kb4 Ke4 Kc5 a5 b4 h4 h7 c3 d5 f3 d6 a3 d7 h3 g5 a2 g6 c2 b5 c6 b6 f2 g7 a4 b7 a3 Kd6 g2 Nf3 g1R Bd2 c1N Qb3 c5 Ne5 c4 Ng4 c3 Be1 Nc6 b8N c2 Na6 Qh4 Qb7 Rd8 Nd2+ Kf4 e4 Kg3 e5 Ne2 e6 c1R e7 Rc3 e8Q Ne5 Qe7 Nf6 Nf3 Qh6 Nfh2 Nh5+ Qe6 Rhf8 Rb1 a1R g8B Nc4+ Kc5 a2 Rb5 Rb1 h8Q Rb4 Bh7 Ra4 Nb4 Raa8 Na6 Rab8 Qd4 Rh8 Bg6 Rdf8 Kd5 Rbd8 Qda7 Nc1 Bfd3 Kg2 Qab8 f1N Kc6 Nfe3 Be2 Rf1 Bed3 Ne2 Kc7+ Rf3 Rf1 Neg3 Rf2+ Kg1 Bf1 Kh1 Kc6 Rf4 Rf3 Rd4 Kc7 Rd2 Kc6 Rg2 Kc5 Rg1 Kc6 Nd2+ Kd6 Ndc4+
N4k2/3p2qK/1P1Rb2B/N7/NrrQ1q1n/4Q1p1/1np1qBp1/1Bb1RR2 w - - 0 1 legal: proof: g4 f5 e4 b5 exf5 c5 a4 h5 axb5 hxg4 d4 cxd4 c3 dxc3 Ke2 e5 Ke3 g5 Ke4 a5 f4 a4 h4 g3 b4 g4 b6 g2 b7 a3 h5 g3 h6 a2 f6 Qc7 Kf5 e4 Kg6 e3 f5 e2 h7 e1Q f7+ Ke7 f6+ Ke6 b5 Qc5 b6 Qee3 Qd2 Qa5 Nh3 Qa6 Ng5+ Ke5 Ne6 Ba3 f8B Nc6 b8N Nb4 f7 Bb7 Bh6 Qae2 f8R Nd3 Nc7 Kd6 Rf6+ Ke7 Rd6 Ra4 Na8 Nb2 Nc6+ Ke8 Qd3 Rc4 Na5 Qf4 Be3 Bd5 Bf2 Be6 Qe3 Ne7+ Kg7 Rf8 h8Q Nf5+ Kh7 Nh4 Qhd4 c2 Nc3 Rf6 Re1 a1Q Na4 Rf5 Rg1 Rb5 Rh1 Rbb4 Rg1 Qh5 Bd3 Qe2 Rgf1 Nd1 Be4 Bc1 Bc6 Nb2 Bd5 Rc5 Ba2 Rcc4 Bg5 Kf8 Bb1 Nd1 Qdd2 Qaf6 Qdd4 Nb2 Bh6+ Qg7+
3B1R2/rpbQ1pK1/2p4N/1b1B3N/RQ1Rr3/qp2PB2/1k6/nqb1Q1n1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 g5 b4 axb4 f4 e6 f5 exf5 h4 fxg4 hxg5 g3 a4 Kd7 d4 Kd6 Kd2 h5 Ke3 b3 Kf4 h4 a5 c6 g6 h3 a6 h2 a7 g2 g7 Bd7 Nc3 Bg4 Ne4+ Kd7 Ke5 Bh5 d6 Qh4 d5 Rh7 Nf3 g1B Nf6+ Kc8 d7+ Kc7 d8R Kb6 d6 Kc5 d7 Kb4 Ra4+ Kc3 Bg2 Na6 Nd4 Qe1 Bg5 Ne7 g8B Nd5 e3 Nab4 Bf3 Nc2 Nf5 Ba3 Nh6 Bc1 Rf8 Nf4 d8Q Ne2 Q8d7 Kb2 Bd5 Qf1 Qe1 Na1 Bf3 Bg6 Nh5 Bd3 Bd8 Bb5 Kf6 Rg7 Qb4 Rg4 Bh7 Re4 Kg7 Qd1 Bf5 Qd6 Be6 Qc5 Qe1 Qa3 Bd5 Bf2 Qb4 Bg3 Rd1 h1Q Rd4 Bc7 Qe1 Ng1 Qb4 Rb8 a8Q Rc8 Qa6 Ra8 Qaa5 Ra7 Qe1 Qh3 Qab4 Qf1 Kh7 Qd3 Kg7 Qb1
1Q3RK1/pr6/1q2rPB1/b4pN1/r2B3N/r1r3b1/2NpQnp1/RQ2B1k1 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 hxg6 e5 g5 Qd3 g4 Qd2 Nc6 Qd1 Nb8 f3 Bb7 Bc4 Nc6 Nc3 Nf6 exf6 e5 Bh6 e4 Nb1 Ne7 Bc1 e3 Bf1 Be4 fxe4 Ng8 Ke2 Kf7 Kd3 Kg6 Kc4 Kh5 Kd5 Kh4 c4 g5 b4 a3 c5 a2 e5 e2 b5 e1R b6 d6 Ke6 g3 Kf7 g4 b7 d3 b8B g2 e6 g3 e7 d2 e8Q d5 c6 d4 c7 d3 c8Q Qd6 Nh3 g1B Na3 g2 Be2 Qb6 Bh5 Re6 Nc2 Bd6 Ng5 Bg3 Be5 Rb8 Bg6 Rb7+ Kf8 B1f2 Qb8 Be1 Bd4 Rh5 Ba3 Nh6 Bb4 Ng4 Qb1 d1R Kg8 Nf2 Bd2 Kg4 h4 Rc1 Ba5 Rhh7 h5 Rhc7 h6 Rc4 h7 Ra4 h8N Bd2 Nh3 Kf3 Ng5+ Ke2 Rh7 Kf1 Rf7 Kg1 Rf8 Be1 Na3 Rc3 Nc2 Rec6 Qe2 Re6 Bh5 Raa3 Ng6 Ra4 Nh4 Raa3 Qbd1 Ra4 Bg6 Raa3 Rb1 a1R Rc1 R1a2 Ra1 Ra4 Bb4 R2a3 Qb1 Rc8 Bd2 Rcc6 Bc1 Ba5 Bd2+ Kh2 Bh7 Rcc3 Be1 d2 Bg6 Kg1
B2r3k/2n1qq2/2Q1P2p/N4K2/2QN3q/pBRp1nR1/b3pNq1/1r1B3R w - - 0 1 legal: proof: d4 b5 h4 d5 f4 c5 a4 g5 axb5 gxh4 e4 e5 Bd2 Bd6 Bb4 dxe4 d5 e3 Bc3 e4 Bd4 Be5 fxe5 cxd4 Ke2 Kf8 g4 Kg7 c4 a5 b4 f5 c5 f4 b6 h3 c6 h2 g5 h6 b5 a4 c7 a3 b7 Bf5 c8B Nd7 b8N Qf8 d6 Qd8 b6 Bh7 g6 Ne7 b7 Qa5 Nd2 Nf5 Ndf3 Qb4 Qc1 Nf6 d7 Nd6 d8Q Nb5 Qb6 Ra5 Qc4 Ng4 Nh3 Nc7 Qbc6 Qe7 Rc1 Rd8 Rc3 Bg8 Bg2 Kh8 Nf2 Rb5 Be6 Rb1 g7+ Kh7 Bc8 Bd5 g8B+ Kh8 Bf5 Bf7 Bg6 Be6 Bh5 Bd5 Q4b5 Ba2 Bb3 Qh4 Qbd5 Qe7 e6 Ne5 Re1 h1Q Qdc4 Qhh4 Rh1 Qg3 Q6d5 Qg4 Nc6 Qg6 b8R Qgf7 Ng5 Nf3 Na5 Ne1 Qdc6 f3+ Kf1 d3 Kg1 e2 Kh2 e3 Kh3 Nc2 Kg4 e1Q Rb5 Nd4 Rf5 Ne2 Rf6 Ng1 Kf5 Qg8 Rg6 Qgg7 Nd1 f2 Nf3 f1Q Rg3 Qg8 Nf2 Qgf7+ Ke5 Qfe2 Nd4 Q2f1 Bd5 Qg2 Bhd1 e2 Be4 Qg8 Kf5 Nf3 Q6a6 Qgg7 Ba8 Qg8 Qac6 Qgg7 Rc2 Q1b4 Rc3 Qh4 Rc1 Qbe7 Rc3 Qgf7+
bNKN3n/BR1b1Q2/Rp1r1b2/8/2bpp1Q1/3B3P/p1q1q1R1/4QrBk w - - 0 1 legal: proof: b4 h5 g4 f5 gxh5 b6 b5 Na6 e4 fxe4 d4 exd3 a4 Nc5 a5 Nb7 a6 c6 axb7 cxb5 Qe2 b4 Qd2 Nh6 Qd1 Ng8 Kd2 Kf7 Ke3 Kf6 Kd4 Kf5 Kd5 a5 b8B g5 f4 e5 c4 a4 h6 a3 h3 d2 c5 g4 c6 g3 c7 g2 h7 b3 Rh2 b2 Nf3 g1Q Ba7 Qf2 Qe1 d1B Nc3 b1B Ng5 Bg7 Kd6 Ba2 Nd5 Ne7 Nb4 Qe2 Rg2 Ng6 Be3 Bc4 Nf7 Ke4 f5 Kf3 f6 Rf8 Na6 Nh8 Bg1 e4 Nb8 Ba4 Ra2 Bb7 c8Q Qc7+ Ke7 Bac6 Nd8 d5+ Ke6 Qh2 f7 d4+ Ke7 Qc2 Bd3 Bd7 Ra1 Bf5 Qe6 Bf6+ Kd7 Bbd5 Kc8 a2 Rc1 Qe2 Rc3 Bg4 Ra3 Bc6 Ra6 Qc2 Rd2 Qe2 Qf5+ Kg2 Qd7 Rg8 f8Q Kh1 Qf7 Rg5 Qde6 Rd5 Qf5 Rd6 Q5e6 Ng6 h8R Bf5 Re8 Nh8 Qed7 Bfe6 Re7 Bed5 Qg4 Be8 Rb7 Bd7+ Kc7 Qf3 Rg2 Qfe2 Nbc6 Rb8 Ne6 Re8 Ned8 Re5 Nb8 Rf5 Qd2 Rf1 Qe1 Bdb5 Kc8 Ba4 Rd7 Ba8 Rb7 Bd7+
1QnN1Rq1/qq1Bpp2/3b1PBk/2p2r2/1QR3R1/1qq5/4nNp1/1N1K2B1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 c3 a5 Bb2 axb4 Bc1 bxc3 h3 b5 Qb3 g5 Qa4 Ra6 Qd1 Rah6 Qb3 h4 Qd1 Rh5 gxh5 g4 Ne2 g3 Ng1 Bg4 hxg4 Qd5 Qb3 Qd3 Qd1 Qd8 f4 c5 a4 e3 d4 e2 d5 g2 a5 b4 h6 b3 d6 c2 f5 b2 h7 h3 f6 h2 a6 Nh6 g5 Nd7 g6 Nf5 a7 Bh6 a8B Kf8 Qd4 Nb6 d7 Ng3 Nh3 Nc8 Be4 Bf4 Be3 Bd6 Nf2 Qa5+ Qd2 Qa7 d8N Qb7 Rg1 h1Q Ra8 Qh4 Ra4 Qg4 Qb4 Rg8 h8Q c1Q+ Nd1 Qc2 Nf2 Qb3 Bd3 Qa7 g7+ Ke8 Qh2 Rh8 Be4 Rh5 Bg6 Rf5 g8R+ Kd7 Rf8 Qg5 Nb7 Ke6 Nd8+ Ke5 Bd4+ Kf4 Qh8 Qg4 Rh1 Kg5 Rh4 Qgf3 Qg8 Qfb7 Rg4+ Kh6 Kd2 Qa3 Kc2 e1Q Bb5 Qec3+ Kd1 Ne2 Bd7 Qa2 Be5 Qe6 Bh2 Qee3 Bg1 Qg5 Bh5 Qg7 Rc4 Qh8 Qg3 Qg8 Bg6 Qe5 Qgb3 Qc3 Rg4 Qba6 Qb8 Q6b7 Rac4 Nc1 Nd2 b1Q Qb4 Qbb2 Nb1 Ne2 Rcf4 Qba2 Rc4 Qab3+
k1B1B3/p7/N2p1QBb/q2r4/PQR1n3/Nq1p1nRp/q2R3n/K1n4Q w - - 0 1 legal: proof: e4 b5 c4 bxc4 d4 e5 f4 exd4 e5 Na6 e6 Rb8 g4 Rb5 h3 Re5+ fxe5 g5 Bf4 gxf4 g5 Bb7 Qc1 Bf3 Qd1 Bg4 hxg4 Bc5 Na3 Be7 Nb1 Bf8 Kd2 f5 Kc1 h5 a4 c5 b4 c3 e7 c4 g6 d6 g7 Kd7 e8B+ Kc7 b5 Kb8 e6 d3 g5 f3 b6 f2 b7 f4 e7 h4 g6 c2 Kb2 c1N Nh3 f3 Rh2 Rh5 Na3 Nb4 Ng5 Nc2 Bh3 f1N Ne6 f2 Nc5 Ne1 Bc8 Nf6 g8R h3 g7 Rd5 Bg6 Qa5 e8B Ne4 Rb1 c3+ Ka1 c2 Rb4 Nf3 Rc4 Ne3 Rg2 f1Q Rd2 Ng4 Qe1 Qh1 Qh4 Qd1 Qf6 Kc7 Na6+ Kb6 Rh8 Ngh2 g8Q Bh6 Qge6 Bg7 Rg8 Bh6 Nc5 Kc7 Qg4 Kb8 Qg1 Qf1 Qh1 Qg1 Nb3 Qgb6 Nc5 Qbb4 Bgf7 Qb3 Rg3 Na2 Bg6 c1Q+ Nb1 Qcc2 Na3 Nc1 Qd4 Kc7 b8Q+ Kd8 Qb4 Kc7 Bb7 Kb8 Bc8+ Ka8 Na6 Re5 Qdc3 Rd5 Qf6 Qca2+
r1K2Bk1/2n3q1/1Qp2nP1/1N1qNp2/pp4N1/1R3pR1/B3b3/Q2Brb1Q w - - 0 1 legal: proof: h4 e5 f4 exf4 c4 b5 a4 g5 b3 Qf6 a5 Bc5 b4 d5 cxd5 Bb6 axb6 gxh4 Rh2 Qb2 Rh3 Qxb4 Rh1 Qb2 Kf2 Kf8 Kf3 a5 Ke4 h5 g4 a4 d4 f5+ Ke5 h3 e4 c6 Kd6 f3 Kc7 b4 g5 h2 b7 h4 d6 h3 g6 Qf2 d5 Qh4 e5 Qg5 e6 Qf4 e7+ Kg7 e8B Qd2 d7 Rh7 d8N Qf2 d6 Rh5 d7 Qe3 Nc3 Qf2 Nf7 Ra7 d8Q Qh4 Q8d4+ Kf8 Ra3 Ra8 Nb5 Qf6 Bh6+ Qg7 Rb3 Ra6 Q4a1 Ra8 Be2 Nf6 Qdc1 Rh4 Bd1 Kg8 Kd8 Be6 Ne5 Na6+ b8Q Bc4 Kc8 Re4 Bd7 Re1 Be6+ Qf7 Bf8 Be2 Re3 Nc7 Ba2 Qd5 Rb3 Bc4 Ne2 Bd3 Ned4 Be2 Rg1 h1Q Rg3 h2 Nc2 Qg1 Ne3 h1B N3g4 Bg2 Qh6 Bgf1 Qh1 Qe3 Rb1 Qh6 Rb3 Ra5 Qa7 Qg7 Qb6 Ra8+
2BkNn2/3rN1r1/2Q1nq2/1Rb3qr/2K1b3/qR3P1n/bn1BRN2/3nQQ2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 d5 b4 e5 c4 h5 c5 d3 Kc3 d2 g5 d4+ Kb3 h3 g6 h4 b6 h2 c6 h3 b5 e3 c7 a4+ Kc4 d3 b7 e2 g7 e1R b6 a3 Qc2 d1N Ra2 e4 Kb5 d2 Rb2 a2 Qd3 a1Q Qe3 Nh6 g8R Qg5+ Qc5 e3 Qf5 e2 Rb3 Qaf6 Na3 Be6 c8N Ra7 Nc4 Kd8 Ne7 Nd7 Nd6 Nb2 Ne8 d1N Bd2 Nf7 Qc5 Bd5 Qc6 Rh5 Bg2 Rf1 Be4 e1N Bf5 Nf3 Kb4 Nd4 Bg4 Nc5 Bc8 Nce6 b8Q Rd7 b7 Be4 Rg7 Bb1 Rh7 Ba2 Qf4 Re1 b8Q Re3 Qfe5 Rg3 Qbb5 Rg2 Nf3 Rg3 Rg1 h1Q Rg2 h2 Qf1 Qg1 Rh6 h1B Qee1 Qe3 Ne5 Rg7 Rg5 Be4 f3 Qg2 Rf5 Nfg5 Nd3 Nh3 Nf2 Qgg5 Rb5 Ne2 Rh7 N2f4 Rh8 Ng6 Rg8 Na4 Kc4 Qa7 Nd5 Bc5 Ne7 Ngf8 Rh8 Nac3 Rh7 Qa3 Rh6 Na4 Rg6 Qgf4 Rg2 Q6g5 Nd3 Qff5 Re2 Qff6 Nf2 Nab2#
1r2qqRr/B3Q1bN/1Nq2P1B/1n1Q2qR/n4nk1/qN2b3/r1B3b1/1Q4K1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 f4 Ke6 Kf2 Kf5 c4 h5 c5 d5 c6 e5 b6 a5 c7 a4 b7 a3 b5 a2 g3 h3 b6 d3 Qb3 e3+ Ke1 e4 Ba3 d2+ Ke2 d1R Bb4 h4 Ba3 h2 Bb2 d4 Qa3 h3 Qd3 Nc6 b8N Nf6 b7 Nd5 Qb5 Na7 Qb3 Bg7 Nd7 Nb5 b8B Qg5 Bc1 Bb7 c8Q Kg4 Ba7 Rb8 f5 Rd2+ Ke1 e2 Kf2 d3 f6 Bc6 Qc7 Nf4 Nf3 Bd5 Rg1 h1Q Nb6 h2 Qe7 Bb7 Bg2 e1B+ Kf1 Rb2 Nbd2 e3 Qbb4 Bf2 Nb3 d2 Rb1 Qc5 Ng5 d1N Nh7 a1Q Be4 Qa3 Bc2 Qhc6 Qbe4 h1Q Bd2 Kh3 g4 Ra2 g5 Nb2 g6 Qg5 Rd1 Qcd6 Bc1 Qd8 Rd5 Qf8 Re5 Na4 Qd5 Qg3 Rh5+ Kg4 Qd3 Qc6 Qd5 Bh6 g7 Ba8 g8Q+ Bg7 Qde5 Bb7 Qa1 Ba8 Qb1 Bb7 Rgh1 Qh4 Qd5 Qg5 Rh6 Bg1 Rg6 Ba8 Rh5 e2+ Ke1 Bd4 Be3 Bc5 Kf2 Bd4 Kg1 e1Q+ Kh2 Qec3 Kg1 Qce8 Qg8 Bg2 Qd5 Bh6 Rg8 Bg7 Na5 Qcc6 Nb3 Bc3 Bf2 Bd2 Bh4 Qgg6 Bg5 Bc1 Bh6 Qg5 Qc4 Bd2 Qd5 Be3+
bRQ2bn1/1PR1r2k/b1nbrB2/N6q/1r1Q3n/5BN1/Kb2q2Q/BN1q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 Kc2 Kg7 Kb3 d5 e4 d3 c5 g3 b6 d2 b7 g2 b5 d4 h5 g4 e5 d3 c6 f3 h6+ Kh7 b6 g3 e6 f4 e7 f2 e8Q f3 c7 a4+ Kb2 a3+ Ka2 Nc6 b8B Qe7 Rh2 Qe2 Qb3 d1Q+ Bd2 Ra4 Rh3 Rb4 Qd5 Bb7 c8N Ba8 Be5 Bd6 Bb2 Bf8 Bg5 d2 b7 Bd6 Rh5 Bf8 Nh3 g1N Bg2 f1B Qd4 f2 Bf6 Nf3 Nf4 Nh4 Bf3 g2 Na7 g1B Qc8 Bh2 Rg5 Bg3 Nh5 Bb8 Ng3 Bbd6 Bg2 Qh5 Bf3 Ba6 Re5 f1R Re8 Qe2 Bc3 Na5 Nc6 d1Q+ Bb2 Re1 Rd8 Nc4 Na5 Ne5 Re8 Nc6 Rd8 Kg6 Re8 Rh7 Rd8 Rg7 h7 Re7 h8Q Qf1 Bc3 R1e6 Qh6+ Kf7 Qhd2 Kg6 Qh2 Qfe2+ Nd2 Qd3 Rc1 Kh7 Ba1 Qe3 Nb1 Qee2+ Rc2 Ra4 Kb3 a2 Kb2 Rb4+ Ka3 Na7 Rc7 Nc6 Qd7 Qhb5 Rb8 Qbe5 Qc8 Qh5 Bb2 a1B Bc3 Bb2+ Ka2 Bc1+ Bb2 Qeb5 Ba1 Bb2 Qhd2 Qbf1 Qh2 Qfe2
1rb2nB1/B1Bb3b/1b4qk/KQ2nq2/1r2NNR1/Q6b/bQ2q1nP/3R1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 f5 c4 Kf7 e4 Kg6 c5 d5 e5 f3 e6 f4 c6 a4 c7 a3 b6 g3 e7 d3 Kc3 d2 e8N a2 b5 d4+ Kc4 d3 b7 g2 b6 f2 Kb5 f3 Na3 Ne7 Nb1 Qd5+ Kb4 Rh4+ Kc3 Nec6 Bb2 Nd7 b8B Qf5 b7 Kh6 Qc1 g5 Ba3 d1B Nf6 d2 Qb2 g4 Bd3 f1B Ba6 g3 Bc4 f2 Be2 Bc2 Bg4 d1B Bc5 Bc4 Qa3 f1B Qa4 Nce5 Ne2 g1N Kb4 g2 Nf4 Ne2 Qb5 g1Q Ne4 Bh3 Nbd2 Bf7 Ba7 Rb8 Nf1 Be7 Ka5 Bd8 Bd6 Nf8 Bh5 Qgg6 Rg1 Bd3 Qb2 Ba4 Rg4 Bad7 Rd1 a1Q+ Qa3 Ba2 Qb2 Qgg5 Bf7 Qgg6 Bg8 Qc1 Qa3 Qe3 Qb2 Ng1 Qa3 Ngf3 Qb2 Ne1 Qa3 Ra8 b8Q Ng2 Qbb2 Qe2 Qb5 Rb8 Qab2 Nf7 Be5 Be7 Qa3 Bc5 Bd6 Ne5 Qab2 Ba6 c8Q Bd4 Qcc2 Bac8 Qcc5 Be3 Qca3 Bb6+ Ka4 Bdb1 Bc7 Qd3 Ng5 Qgf7 Nd5 Qe2 Re4 Q5e6 Rf4 Bh7 Rc4 Bf2 Ka5 Qfg6 Re4 Rf4 Ra4 Qef5 Rad4 Rf3 Rg4 Rb3 Nf4 Rb4 Ne4 Bb6+
bR3q1r/BNqk4/Qrb1N3/RR1B4/1nrr4/n1q5/3BPb2/Q3rrNK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 h5 g4 a5 Kg2 f5 c4 d5 b4 d3 c5 a4 c6 f3+ Kh2 f4 b6 f2 g5 h3 c7 d2 b7 h4 b5 f3 b6 d4 g6 d3 g7 a3 Qa4+ Nc6 b8Q d1R b7 a2 Qb3 d2 Qb5 Kd7 Qb3 Na7 Na3 Re1 Nc2 d1R Qb2 Bc5 Ne3 Nb5 Nd5 Na3 Nb4 Rd4 Nc2 Raa4 Bg2 f1Q Qa8 f2 b8B Rac4 Qbb7 Nf6 g8R Nd5 Bh6 Nb4 Qb6 Bb7 c8N Bc6 Nd6 Qc7 Bd2 Rh6 Rb1 a1Q Ba7 Qc3 Bd5 Rh8 Rg5 Rb8 Qa6 Rb6 Qh8 Ba8 Nf3 Bc6 Rhg1 Ba8 Kh1 h2 Rb3 Qh3 Rf5 f1R Nb7 Qg4 Rf8 Qgf4 Rb8 Qf8 Qe5 Rd3 Rb2 Bf2 Rb1 Rdd4 Rb3 Re4 Ncd4 Rg4 Ne6 Rgd4 Kg2 h1B+ Kh2 h3 Rg5 Nbc2 Rb5 Nb4 Ng1 Bf3 Rg2 Be4 Kh1 h2 Qf6 Bc2 Rg5 Ba4 Ra5 Bc6 Qf3 Qc2 Qc3 Qc1 Qa1 Qc3 Kg2 h1R Rf5 Rh6 Re5 Bh4 Kh1 Rh8 Bg2 Re4 Reb5 Red4 Bd5 Bf2+
b1r1qq2/K1n3Q1/4b1N1/1RnRB3/N2q1bQQ/2Pb1rR1/b2n2B1/b2N2k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 g4+ Ke4 b4 h5 b6 d5+ Kb5 a5 b7 f5 c3 a4 g5 d3 e3 h3 g6 h4 g7 h2 Ra2 d4 Na3 h3 Nc4 f3 Ne2 a3 Ne5 f2 Ng6 Kf3 e4 f4 e5 d2 e6 d3 e7 Qe8+ Kb6 Na6 b8Q Nf6 g8Q Be6 b5 Nc7 Bb2 Nd7+ Kb7 Nc5+ Kb6 Bh6 Qg7 Rf8 Qd8 Rc8 Rg1 h1B Ka7 h2 b6 Rf6 Ra1 a2 Rb1 a1B b7 Qf8 Bh3 f1B b8N Kf2 e8R f3 Bc1 Bf4 Na6 Rf7 Qa4 d1Q Nd4 d2 Bg2 Qe2 Nf5 d1Q Rb5 Qd4 Ne3 Qe1 Qd7 Bd3 Rd8 Ba2 Qg4 Rf6 Nd5 Qee8 Ne3 Rf7 Rd5 Rf5 Bh3 Bg2 Ba3 h1B Bb4 Bgf1 Rg3 Bdc4 Ba3 Bfd3 Bg2 Kg1 Nd1 f2 Bc1 f1N Qb4 Bd6 Bf4 Nd2 Be5 Rf3 Qa4 Nb7+ Nc5 Bcb3 Bf6 Bf4 Be5 Bbc4 Rd6 Be6 Rd5 Qf2 Qd4 Qe3 Na4 Nc5 Qe4 Qd4 Qh4 Bab1 Qf5 Ba2 Qfg4 Qe3 Rd8 Qd4 Bh3+ Bg2 Rd6 Re3 Rd8 Kh2 Rd7 Ba8 Rd5 Rf3 Bg2+ Kg1
nB2BKNn/6Q1/r4r2/N1N1n2b/q1rRnRbR/QPk5/B1n5/2b2q1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 h5 Kd5 a5 e4 a4 c4 a3 g4 f3 b6 f2 c5 a2 c6 h3 b3 h2 b7 h4 c7 d3 Bg2 f1R Be3 h3 Qe1 d2 Bh6 d1N Qd2 Na6 b8R Nb2 Qd3 Ne7+ Kd6 Ng6+ Kd5 Ba3 Qb5 Nd3 Qc5 Qe8 Kd6 Bc1 Nd2 Nde5 Bf4 Rh4 Ngf3 Nh8 Qa3 Rf2 Rd1 h1N Ng5 h2 Nc4 Ng3 Rd4 h1N Ne6 Rf1 Rb1 a1N Nc5 Nc2 Na5 Ra7 Rbb4 Rf3 Kd5 d6 Bf1 Qa4 Bd3 Bf5 c8Q Bg6 Bd2 Bh5 g5+ Ke7 Qg8 Ng4 g6 Kf6 g7 Nc7+ Kc4 Na1 Rd5 Bb2 Bh6 Ra6 Re5 Na8 Re1 Bc1 Bb1 Nc2 Rd1 Rf4 Ba2 d5+ Kd3 d4 Kc4 d3 Kd5 Rf1 Bf4 d2 Re7 Rf3 e5+ Kf5 Rf1 d1B e6 f6 Bb8 Rf2 Rd7 Ne5 Rb6 Rf3 Rbd6 Rc4 e7 Kf4 Ke6 Ke3 e8B f5 Ke7 f4 Rf6 Ne4 Kf8 Rf2 Rd5 f3 Rd4 Ke2 Rg1 Rf1 Rgg6 f2 Rg4 Ke3 Rh4 Bdg4 Qh7 Ke2 g8N Ke1 Nd3+ Kd2 Qg7 Kc3 Nc5 Rd1 Rf4 f1Q Rd8 Rdd6 Rd7 Rdc6 Rd4 Rf6+
Bq2b1K1/r3q2n/1b1R3Q/N2qRN2/QP1B4/Q1q1Rqn1/3n1kqb/N6r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 a5 e4 h5 c4 d5+ Ke5 f5 g4 h3 g5 f3 b6 f2 b7 h2 g6 h4 b3 d3 g7 a4 Bb2 a3 Qc1 f4 Nf3 d4 Qd2 h3 Nc3 a2 Ne2 Ne7 Kf6 Nd7+ Kf7 Ra7 b8Q Nf5 g8R Ng3 e5 Qe7+ Kg6 Nf6 e6 Bd7 Bc3 Nh7 Ne5 f3 Re1 a1B Bg2 f1N Qa8 f2 Qh6 d2 Nc1 d1Q Nc6 d3 Na5 d2 Re3 Qe1 Bf6 Bg7 Re8 Be5 b4+ Kd4 c5 d1Q c6 Qf3 c7 Qc3 c8N Nd2 Rd1 f1Q Nd6 Qb5 Bh1 Bc6 Bg2 h1Q Ncb3+ Kd5 Nf5 h2 Na1 Qb8 Rf8 Bc7 Bd4 Bb6 Re8 Qf1 Bh1 Be5 Bg2 Qd7 e7 h1Q Kf7 Qf2 Rd3 Ke4 Re1+ Qe2 Rd8 Qdb7 Rd6 Bd7 e8Q Qd5+ Qhe6 Qh4 Re3+ Kf4 Bh1 Qeg2 R1e2 Kg4 Re1 Bf4 Kg7 Kh3 Qh6 Kh2 R1e2 Kg1 Re5+ Kf1 R2e3 Kg1 Qf7 Be8 Qd7 Bf7 Qa4 Qe7 Qa3 Kf1 Qc6 Kf2 Qca4 Ne2+ Qg6 Bh2 Qg5 Ng3 Qf4 Rc8 Qh6 Be8+ Kh8 Qdb7 Kg8 Rc4 Bc5 Rh4 Bd4 Qbd5+ Qe6 Bg1 Rc6 Qdd6 Rc8 Qe4 Q4b3 Qf1 Qba4 Rh6 Bg2 Rh1 Qh6 Bh2 Rd8 Qg1 Bf3 Qg2 Rd7 Qf4 Ba8 Qff3 Rd8 Qdc6 Rd6 Qcd5+
4q2q/B1r1NBBN/5n1P/4b3/brq5/bbbn1Knk/1QR1RQ2/b2RQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Ke6 e4 d5 c4 a5 b4 f5 b6 g5 e5 f3 h5 g3+ Ke1 f2+ Ke2 a4 c5 g2 b5 g4 c6 g3 h6 d3+ Ke3 d4+ Kf3 a3 b7 f4 c7 Kf5 b6 d2 e6 d3 e7 a2 e8R Be6 c8Q Nd7 b8B Ba3 b7 Nc5 Qc7 Rh7 Qc6 Rc7 Re7 Qe8 Rg7 Ra4 Qe2 d1B Be3 d2 Nh3 g1B Ba7 g2 b8Q Bh2 Qbb6 g1B Qb2 Rb4 Re7 Ba4 Kg2 Beb3 Qb6 Bg3 Ng5 f3+ Kh3 B1h2 Bd4 Kf4 Bg2 f1Q Nc3 f2 Rc1 a1B Nh7 d1Q Rc2 Kf5 Be5 Qd4 Nd5 Bh4 Qd2 Qfc4 Rd1 f1N Qe1 Bf6 Bf3 Bg3 Kg2 Nd3 Bh5 Qdc3 Bg6+ Kg4 Qbf2 Bf4 Bed4 Ng3 Ree2 Kh4 Kf3 Kh3 Bf7 Bd2 Be3 Q3d4 Ne7 Bc3 Bf4 Bh8 Be3 Qg7 Bg5 Qgf8 Bh4 Bhe5 Bg5 Qg7 Bf6 Qh8 Bg7 Nf6
1R6/Q2QbbP1/1n1Q1Bb1/1qqqq2K/2R1q1B1/1Br1b1N1/1r4kb/Nn5R w - - 0 1 illegal: No possible last move, all moves rejected
n3Rrrr/3qnBB1/8/qrR1qr2/1q1Nb1R1/6bb/1k1N1KP1/3QQBQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 Ke7 b4 Kf6 e4 Ke5 b6 f5 b7 h5 b5 d5 b6 a5 c5 f3 c6 a4 c7 h3 Kf2 h2 Ra3 f4 Bc4 d3 Kf1 Kd4 e5 f2 e6 h4 e7 d2 e8R h3 Re2 Na6 b8Q Ne7 b7 Bh6 Rf3 a3 Bd3 a2 Ree3 a1Q Ke2 f1R Qb3 d1B+ Kd2 Bc2 Rg3 f3 Rg4+ Bf4 Qa3 f2 Bh7 Be4 Ke2 Qd6 Rc3 Qb4 Qb3 Qaa5 Rg5 Bcf5 c8B Nc7 Ba3 Rf8 Nd2 Rb1 Rc2 f1R Rc5 Rf3 Qd1 Rb2 Rb5 Kc3 Bg8 d4 Rg4 d3+ Ke1 Rb1 Qa7 Rb8 Rd5 Na8 Bf7 Rg8 Bce6 Rbf8 b8Q Rf2 Ngf3 Rb3 Rf1 h1Q Qab6 h2 Qe8 Qg1 Qa7 h1R Nd4 Qh2 Rb5 Qg3 Bc4 Rhh8 Rc5 Rf3+ Rf2 Qh2 Re2 Rf2 Rh4 Bh3 Re3 Qg3 Bc1 Qg7 Rg4 Qe5 Ba3 Bh2 Qb6 Rf5 Re2 Bf4 Kf2 Qba4 Re3 Rb5 Bb4+ Kb2 Bc3+ Ka3 Qd6 Q4b4 Qg1 Bb7 Qd5 Bc6 Qf3 Be4 Qfd1 Qd5 Rc6 Ng6 N4b3 Bf3 Bg7 Qbc5 Qdf1 Qcb4 Ne4 d2 Rc5 d1Q Qe6 Qa1 Qd1 Qd7 Ned2 Qad4 Be2 Kb2 Bf1 Qf6 Nd4 Qfe7 Rc8 Qec5 Re8 Ne7 Rc3 Qcd5 Qe4 Qe5 Qee1 Be4 Rc5 Bg3+
KRrN2nr/N3q3/B5Q1/b1B2NR1/Rqqnk1b1/1rQ3Qn/n4qP1/7n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 a5 b4 f5+ Kd3 Ke5 e4 d5 c5 h3 b6 h2 c6 a4 c7 h4 b5 f3 b7 f2 b6 a3 Qb3 h3 Be3 f4 Ne2 a2 Nc1 f3 Qb4 Bg4 c8R Nc6 b8N Qe7 Be2 f1Q b7 f2 Nc3 Qg1 Re8 f1Q Nb5 Qgf2 Qc3 Q1e1 Rf1 h1N Na7 h2 Nb3 Qc1 Rd8 Qca3 Rfb1 Qab4 Rd6 Bh6 Rg6 Bf4 Na6 Rb8 Nac5 Rc8 Ne6 Bh6 Nd8 Bg5 Bc1 Bd2 Ba3 Kf4 e5 Rh3+ Kc2 Ke4 b8Q d3+ Kb2 d4 e6 Be1 Qg3 d2 Ba6 d3 Rg5 Qc4 Bd6 d1N+ Ka3 d2 Nd4 Rh8 Nf5 Nd4 Rb8 Rh3 Qb4 Nc3 Bc5 d1Q Qa5 Rh8 Qac7 Qdd2 Qc6+ Qd5 Kb4 Qdf4 Qc7 Qc4+ Ka5 Q4d2 Kb6 Qb2+ Bb5 Qbb4 Kb7 Bd2 Ka8 Be1 Rc1 a1R Ba6 Ra3 Ra1 Rb3 Ra4 Na2 Qa5 Qf3 Qac7 Nf2 Qa5 h1N Qac7 Qh7 e7 Nh3 e8Q+ Qe7 Qg6 Qf2 Qc3 Qa3 Q3g3 Ba5 Qc3 Qab4 Qh2 Qcb5 Qhg3 Q5c4
3q1Brb/k1r5/rRqnN1b1/QRNq1b2/2BK4/4B2b/1QQ1P2b/1Nq2n2 w - - 0 1 illegal: No possible last move
2Qr4/n1bBK1q1/7r/2k1bR1r/2rnQB1N/b1Q2Nq1/1Pb3NR/2b1Rn2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 g5 h4 d5 f4 Kd7 c4 Kd6 h5 e5 b6 a5 b7 g3 h6 g2 h7 a4 f5 d3 Kc3 d2 Kb4 e3 f6 g4 f7 a3 Be2 d4 Kb5 e4 Qb3 d1R Rh4 g3 Rh2 d3 Qa4 d2 Rh1 a2 Bf1 e2 Rh3 e1B Qa6+ Nc6 b8Q+ Qc7 Qba7 e3 Qa5 e2 Q5b6 Bf5 Rh1 Bc2 Qab7 Ne7 Qa5 Nf5 Qba7 Rc8 Nf3 g1Q Qb7 g2 Qc3 Bg3 Na3 e1B Rh2 Be5 c5+ Kd5 Rb1 a1R Nc4 Ra6 Be2 Be7 f8R B1g3 Rf7 Rhd8 h8N Bf8 Rf6 Qg7 Ng6 Qe3 Qa8 Rh1 Ngh4 d1N Bd2 Qg1 Bf4 Nde3 Re1 Nf1 Qb7 Qf2 Qe7 g1B Ne3+ Ke4 Neg2 Kd5 Qe8 Na7+ Kb4 Rc7 Bb5 Nd4 Rf5 Rh6 Bd7 Qe3 Qg6 Qd3 Qe8 Be3 Qe7 Rcc8 c6 Bc1 c7 Qe3 Ka5 Rh5 Qe8 Ba3 Kb6 Ra8 c8Q Qf2 Qa6 Rac8 Qad3 Rc4 Qe4+ Kd6 Kb7 Kc5 Qe6 Rdh8 Qg8 R8h6 Qh8 Rd6 Kc7 Rd5+ Kd8 Rh6 Bg5 Bc7+ Ke8 Bge5 Bf4 Qfg3 Qg8 Q7g6+ Ke7 Qg7+ Rf7 Rh5 Qc8 Rd6 Ba4 Rd8 Bd7 Rh6 Ng6 Bd3 Rh5 Qh8 Rff5 Bc2 Qd2 Rh4 Qc3 Rg4 Rh4 Rg5 Rh2 Rgh5 N6h4 Qhg7+
2Rq4/1Q1K1N2/BBnQRr1n/6Bk/1nQ3r1/1nN2qP1/1Rb1bbb1/2r2b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 Kf7 Kc4 Kg6 Kd5 h5 e4 a5 c4 f3 b4 f4 e5 f2 b6 f3 c5 h3 g3 d3 e6 h4 b7 h2 b5 h3 c6 a4 e7 d2 Kd6 a3 c7 a2 b6 Ra4 Be2 f1N Nc3 f2 Rb1 a1N Nd5 Ne3 Ba6 f1B Bc4 Nc6 b8Q Nb3 b7 Rh6 Bb2 Nc2 Be5 N2b4 Nf3 Kh5+ Bf6 Bg2 Qg1 d1B Qf1 Bc2 Ba6 Rg6 Ne5 Nh6 Rg1 h1R Rb2 h2 Qc4 Bg7 Rgb1 Rc1 e8Q h1Q Qf8 Qf1 Qa8 Qf3 b8B Bb7 c8R Bf1 Bc7 Rg4 Bb5 Ra6 Bg5 Bf6 Nf7 Bd4 Bb6 Bf2 Qe7 Na7 Qd3 Rd1 Rb8 Qf5 Nc3 Bbg2 Rc8 Qf3 Qc6 Re1 Bc5 Rb6 Ba6 Rd1 Ke5 d5 Ke6 d4 Qc4 d3 Qb7 d2 Ra1 Rb1 Bce3 d1B Bc5 Rb5 Bb6 Rf5 Qd6 Nac6 Ra5 Rff4 Re5 Bde2 Re4 Rc1 Re5 Qh8 Kd7 Rf6 Re6 Qd8+
n1n1BK2/N2Q3b/3R1qrr/1b5N/1R1bR3/krN1rBP1/b6B/1Q2q1nb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 c4 a5 e4 d5+ Ke5 f5 c5 h5 b6 h3 c6 a4 g3 f3 c7 a3 b7 a2 b3 h2 Bg5 d3 Bg2 d2 Bh6 f2 Nf3 f1R Qc1 d1N Qg5 d4 Qe3 h4 Bh3 d3 Qd2+ Nc3 Bg2 f4 Qe2 h3 Qe1 d2 Nd4 d1R Nf5 f3 Ng7 f2 Be3 Nd7+ Ke6 Rd3 Kf7 Ra3 b8N Rh6 e5 Ne7 e6 Nb6 Nh5 Na8 Bf3 Bg7 Bd4 Bd7 c8Q Bb5 Qd7 Nc8 e7 Re3 e8B Qf6+ Kg8 Bh8 Qd1 Ne2 Nc3 Ra6 Nc6+ Ka3 b4 Ng1 Na7 Rfe1 Qc2 f1B Rd1 a1Q Qb1 Bfd3 Bb6 Bf5 Rd6 R1e2 Bc5 Rb2 Bd4 Bg6 Bc5 Bf7+ Kf8 Rb3 Bd4 Qd8 Bc5 Bd4 Bb6 Qf6 Bc5 Ne2 Re1 h1B Bb6 Ng1 Bc5 Re5 Re4 h2 Bb6 Bg2 Bc5 h1B Bb6 Bd3 b5 Bgf1 Bc5+ Rb4 b6 Ba2+ Qf7 Bc2 b7 Bb5 Bb6 Rb3 b8R Qg5 Qe7 Qd2 Qd7 Qe1 Rh4 Bg6 Rb7 Re2 Re4 Bh7 Rb8 Be5 Bf2 Bd4 Rb7 Re3 Rb8 Ne2 Bg1 Rg6 Bh2 Ng1 Rd5 Rae6 Rd6 Rh6 Rbb6 Reg6 Rb7 Ba4 Rb4 Bb5 Bf7 Qb2 Be8 Bb6 Na4 Qe5 Nc3 Bd4 Rf6 Qg5 Rd6 Qf6+
B1R3nq/3bb2b/R4q2/QqB4r/NN2qb2/2RBPn2/2N1nqk1/1QrK4 w - - 0 1 illegal: No possible last move, all moves rejected
2Bn3n/K3rrn1/1b1nN2B/B7/b1q1PRQQ/1qNR1b1q/2bR2Qb/k7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Kf6 g4 Ke5 e4 d5 b4 h5 c5 f5 g5 a5 c6 a4 g6 d3 g7 Kd4 c7 d2 b6 h3 b7 f3 b5 f4 b6 h4 Bg2 a3 Qc2 d1N+ Ke1 a2 Kd2 h2 Qb2+ Nc3 Bh3 f2 Bg2 f1Q Qb5 h3 Qa4+ Qc4 Qb5 f3 Na3 f2 Bf3 f1N+ Kc2 Ne7 g8Q Ng3 Rb1 a1B Qg5 Rh7 Bd2 Ng6 Qa4 Rf7 Bg2 Ra7 Qg4 Nf5 Qh4 Nh8 Bh6 Bd6 Rf1 Ng7 Rf4 Nc6 b8R Qg8 b7 Bd7 c8Q Nd8 Nb1 Bc7 Qa2 Nb5+ Nc3 Nd6 Bf1 Bb5 Qcg4 Ba4+ Kd2 Qb3 Nge2+ Kc4 Ra8 d4 b8B d3 Ke3 d2 Nd4+ Kb4 Bc4 d1B Ba6 Bc2 Rd1 h1Q Rd3 h2 Bc8 Qf1 Qb2 h1B Ne6 Qh3+ Kd4 Bf3 Qa2 Rb7 Ra5 Bb2 Rd5 Bc1 Ba7 Bd2 Bb6 Be1 Bd7 Bg3 Bc8 Bh2 Rd2 Bcd1 Qc2 Ka3 Kc5 Re7 R2d3 Rf7 Qcg2 Bc2 R5d4 Kb2 Ba5 Ka1 Rd5 Bb8 Rd2 Rbe7 R5d3 Qc4+ Kb6 Bc7+ Ka7 Qe8 Qg4g3 Qeb5 Qhg4 Qbb3 Q3h4 Bb6+
1rqq2qr/kb5Q/3b1P2/1n2b3/1Qr3R1/1Q4Bn/2RNBN1N/Kbq2q1R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 b4 Kd7 f4 Kc7 c4 Kb6 Kc2 h5 Kb2 e5 g4 a5 c5+ Ka7 c6 d3 f5 e3 g5 d2 f6 h3 c7 e2 g6 e1R g7 e4 Bc4 d4 Ba2 a4 Qe2 d1B Nd2 h2 Qg2 d3 Qg4 a3+ Kb1 h4 Qg3 e3 Qf2 h3 Bf7 a2+ Kb2 Nh6 g8Q Bc2 Qfg2 e2 Qf3 Bd6 Qh7 Na6 Bc4 Bb7 c8R Ng4 Rc6 Qc8 b6+ Kb8 b5 Nf2 Qf4 Nc7 Ngf3 Bb1 Rg1 h1Q Rg4 Qg8 Nh2 Qf1 Qd4 Rd1 Qc3 e1Q Qb4 Qee6 Qb3 Bc8 b7 Ka7 b8N Bb7 Nd7 Rb8 Nc5 Qec8 Nce4 Re1 Ng5 Re4 b6+ Ka8 Ba6 Nb5 Rc2 Rd4 Nge4 Rc4 Ndf3 d2 Qb4 d1Q Bf4 Qdd5 Bg3 Qgd8 Nfd2 Q5g8 Qb3 Bd5 b7+ Ka7 Nhf3 h2 Qb4 h1Q Nh2 Nh3 Nf2 Kb6 Qb3 Ra8 b8Q+ Bb7 Qbc7+ Ka7 Qa5 Rb8 Qab4 Qhc6 Rc3 Be4 Rc2 Qc5 Re1 a1B+ Ka2 Bae5 Rd1 Nc3+ Ka1 Q5c6 Ra2 Bb1 Rc2 Qd3 Rh1 Qf1 Bb5 Qc5 Bc6 Qe3 Bf3 Qee1 Be2 Nb5+ Q3c3 Qc1 Qb3 Rd4 Qcb4 Rc4+
r2kr2n/4n1b1/2b1bRb1/4RRn1/5KQ1/Pbn1Qq2/2NNBB1n/Q1N1b3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 Kf3 f5 g4 c5 e4 h5 d4 h3 g5 h2 g6 c4 d6 c3 g7 c2 a3 b3 e5 b2 d5 b4 e6 h4 e7 h3 Bc4 b3 Ne2 Be6 Qe1 Nc6 Ng3 Nh6 g8N Nf7 Rf1 h1B+ Ke2 f3+ Ke3 f4+ Ke4 f2+ Kd3 f3 Ke3 h2 Nh6 Bg7 Nd2 b1N Be2 b2 Nhf5 Nc3 Kf4 b1B Nd4 Ba2 Bb2 c1B Nc2 Bb3 Qd1 Kd7 e8R Ne7 Rf8 Kc8 d7+ Kc7 Re1 f1B Ra2 f2 d6+ Kb6 Ra1 Bc6 Rb1 Qc7 d8Q h1N Qe8 Qb7 d7 Kc7 Ba1 Rg8 Rb2 Nh8 Rf5 Rf8 Qg6 Bfg2 Qg4 f1N Rb1 Nh2 Rf1 Na2 Bd4 Kd8 Bf2 Nc3 Ra1 Bb2 Ra2 Bge4 Qa1 Bc1 Rf6 Bg6 Rb2 Ba2 Rb5 Re8 Re5 Bad5 Bf3 Bc4 Ne2 Ng3 Rff5 Bb2 Nc1 Bb3 Be2 Nge4 Rf6 Ng5 Rff5 Qb5 Rf6 Qd5 Rff5 Kc7 d8Q+ Kb7 Rf6 Bc8 Nc4 Qg2 Bd4 Nce4 Ke3 Bc3 R1f5 Be6 Qb6+ Kc8 Kf4 Be1 Nd2 Nc3 Bf2 Qh3 Qa7 Kd8 Qe3 Qf3+
2Br1RRB/1n1P1rQ1/n1qR1Q2/N3n1N1/1b3r2/1n1n4/2NBr2r/1K2rbk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 Kd4 g6 f5 e5 c5 e6 h5 b6 a5 g7 f3 e7 c3 e8Q c2 d3 f4 Kd2 c4 b7 c3+ Ke1 h3 b5 h4 b6 a4 Nd2 f2+ Ke2 h2 Qf7 a3 Bb2 c1N+ Kf3 h3 Qc2 a2 Qcb3 Qc7 Qa3 Ne7 g8R Qc6+ Ne4 Nf5 Qc7 Bb4 Qa6 Nd6 Rb1 Nb3 Ke2 a1R Kd1 Ke3 Kc2 f3 d4 Ra2 d5 Ra7 Bb5 f1N Ne2 f2 Rd1 Nfd2 Ng5 f1R Nd4 Kf2 Qg7 Nf3 Kb1 Ne5 Nc2 Bf5 Rg1 h1R Rf8 h2 Bc1 Re1 Bd2 Re2 Rg4 Rf1 Bc4 h1R Rg3 Ndf7 d6 Bd3 Be6 R8h2 Bf5 Nd8 Rg1 Ra5 Rg4 Rd5 Bc8+ Nef7 Qa1 Na6 b8N Nb7 Rg1 Rd4 d7 Rf4 Rg3 Ra8 Qf6 Ne5 Qb2 Qg2 Nc6 Kg1 Na5 Rfe1 Rg4 Rh7 Qa1 Rf7 Qg7 Rh2 Rg3 Nd6 b7 Bc4 b8B Nb7 Qa4 Bd3 Qc6 Bb5 Qcf6 Bc4 Rh3 Qc6 Rhh8 Bd3 Rhg8 Bb5 Ne3 Bc4 Ba7 Bb5 Bd4 c2+ Ka2 c1N+ Kb1 Ncd3 Nc2+ Re3 B4c3 Ree2 Qd8 Ndc5 Qh7 Qf6 Bc1 Qc6 Rd6 Ng6 Bh8 Ne5 Qg7 Ree4 Qe7 Bf1 Qef6 Nd8 Bb7 Ncd3 Rd4 R4e2 Rd5 Ne6 Rd6 Rd8 Bc8 Nec5 Ka2 Nb7 Bd2 Ndc1+ Kb1 Ncd3+
nk1K4/1n3qrq/Qb2QN1N/1n1NR3/r3b1r1/2Q4R/1qB3Pb/R3Bq1n w - - 0 1 illegal: No possible last move
KB1RR1r1/q2bN1r1/1q3bR1/2Q5/4Bnr1/N1B3n1/Qr2kbPb/N2q2n1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kf6 c4 Kf5 b4 h5 b6 e5 b7 a5 c5 d5 c6 e3+ Kd3 e2 c7 e1R b5 a4 b6 e4+ Kd2 e3+ Kd3 e2 Bb2 h3 Rh2 a3 Nd2 a2 Nc4 h4 Qc1 Rh7 Na5 Bd6 Qd2 Nd7 b8R Ngf6 b7 Ne5+ Kc2 Ke4 Kb3 d3 Ka4 d4 Kb5 Rb1 Kb6 e1B f5 Bf2 Rh1 h2 Nc4 h3 Ne2 Bd7 Ng1 Nh5 f6 Rg7 f7 Nf4 f8Q Nf3 Qb4 d2 Qc3 d1R Ne2 d3+ Nd4 d2 Qb3 Ng1 Bc3 Rb2 Na3 Ke3 Bd3 Be5 Rc1 a1B Be4 Bd6 Ndc2+ Ke2+ Bd4 Qf6 c8N Re1 Ne7 d1Q Re8 Rc8 Ka7 Bc7 b8B Qb6+ Ka8 Rg4 Qff7 Be5 Rh8 Rcg8 Bc3 Qdd6 Qh5 Qdc7 Qbf7 Rd1 Rb1 Rd6 Ba5 Rdg6 Qa2 R6g7 Bc3 Bf5 Rd1 Ng6 Bd5 Rd8 Nc4 Rb5 Bb4 Nf3 Rc1 Bad4 Rhd1 h1N Nc8 h2 Bd2 Rb2 N4a3 Beg3 Ne7 Nf4 Na1 Re8 Rc5 Bf6 Be4 Rd8 Bc3 Bc8 Rh6 Rdg8 Rd8 Bd7 Qhd5 Bg1 Rg6 B3f2 Nc8 Ng3 Qh5 h1Q Re5 Bh2 Ree8 Qd1 Qc5 Ng1 Ne7 Qca7+
1n3BNK/r2b1Rb1/n4N2/Qb3qRB/2b3n1/2r2Q1Q/1kn1qP2/3r1qBR w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 c4 Ke5 b4 a5 g5 d5 b6 h5 c5 h3 c6 d3 Kc3 e3 g6 d2 c7 h4 b5 a4 g7 a3 b7 h2 b6 e2 Qc2 e1Q Ba6 d1Q+ Nd2 h3 Qb2 d4+ Kd3 a2 Ne2 Qd5 Qa3 Bd7 c8Q Ra7 Ng3 Qde2+ Kc2 d3+ Kc3 Nh6 g8Q Q1f1 Qh7 Ng4 Nh5 Bh6 Qcc5 Rc8 Ne4 d2 Nhf6 d1R Ng8 e6 Rb1 a1N Rb5 Nc2 Nef6 Nb4 Qd3 Rc6 Qf3 Rc8 Ra5 Rc7 Bd3 N4a6 Bg6 Rc8 Bh5 Bb5 Rg1 h1B Qb3 h2 Ba3 Bg2 Rh1 Bh3 Bb4 Bc4 Qb5 Rc6 Bf8 Rc5 Q5b4 Qde4 Rb5 Qb1 Qa5 Qf5 Rg1 h1B Qba3 Nc6 b8R B1g2 Rb7 Ncb8 Rf7 Bh1 Qa8 Bc6 b7 Bd7 Qb3 Bg2 Rh1 Bgc6 Ne8 Ke4 Qba3 e5 Nef6+ Kf3 Qb3 e4 Qba3 e3 Qb3 Bd3+ Kd4 Rc3 Rc5 Bcb5 Qba3 Qg6 Rg5 Qh7 Kd5 Qf5+ Kd6 Bdc4+ Ke7 Kf4 Qb3 Ke5 Qba3 Kd4 Qb3 Be8 Qba3 Nd7 b8B Kd3 Qc6 Kc2 Bh2 Ndb8+ Qb7 Kb1 Bg1 Bd7 Qf3 Kc2 Qd6 Kb2 Qdg3 Qec2 Qh2 e2 Qhh3 e1N Rh7 Rd5 Kf7 Qce2 Rhg7 Nc2 Rh7 Qfe6+ Kg6 Rd4 Rf7 Rd1 Kh7 Qf5+ Kh8 Bg7+
BQN4K/1bbkBr1Q/n3r1n1/q3Rb2/1r1q1Rq1/2rPN3/q1Q5/2n1B2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 a5 g4 h5 e4 c5 b4 a4 e5 c3 b6 c4 b5 a3 e6 a2 b7 c2 b6 h3 g5 h4 e7 h2 d3 h3 g6 c3 g7 Ra6 Nd2 Kd7 e8R Rh4 Bb2 c1N Ne2 c2 Nb3 Bd6 Ned4 Bc7 Re1 Ne7 g8Q Ng6 Na5 Qf6 Nb5 Qd4 Rb1 a1Q Re5 Qa2 Bg2 Rg4 Rf1 h1Q Na7 h2 Bc3 Qhg1 Nc4 h1B Ne3 Qa5 Be1 Qh2 Kf2 f3 Qd2 f4 Qh7+ Kd8 Qe2 Bf5 Nc8 Qh3 Qd2 Rh4 Qc3 Qg4 Qb3 Ra7 Qc3 Na6 b8B Rb7 Qb2 Rh6 Ba7 Rb8 b7 Qa2 Bc5 Qa5 Be7+ Kd7 Bh3 Qa2 Qc3 Bg2 Rh1 Qa5 Rb4 Qa2 Kg1 f2+ Kh2 f1R Qd2 f3 Ra4 Qd6 Rf4 f2 Qc3 Qd4 Qc4 Ra8 b8Q Ra7 Qc3 Rb7 Qb3 Rb4 Qc3 Qe2 Kg3 Bb7 Bg2 Qd2 Qb2 Q2c3 Bf3 Qca3 Be4 Qa5 Kf3 Nb3 Kg3 c1R Bf3 Rcc4 Qc2 Nc1 Bd5 Rc3 Bf3 Bfe4 Kg4 Bf5+ Kg5 Nh4 Qb2 Re6 Qc2 Ng6 Kh6 Rg1 Kg7 f1Q Qb3 Qh3 Qc2 Rg5 Bd5 Qg4 Kg8 Nf8+ Kh8 Rg7 Bb3 Rf7 Bc4 Bg2 Bd5 Bge4 Ba8 Bc6 Qa7 Bb7 Qb8 Ng6+
nbBRR1Nk/3Q4/Kr1Q3q/1r2b1r1/5B2/2P1Q2b/1bN2q2/n1n1qBnN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 f5 Kc4 Kf7 h4 g5 e4 Kg7 b4 d5+ Kb3 d3 Ka4 g3 h5 f3 c3 d2 b6 f2 Kb5 d4 e5 a4 b7 g2 e6 f4 e7 d3 e8B g4 Na3 f3 Rh4 g3 Rg4+ Qg5+ Kb6 Bd6 b5 Be5 Bf7 Nf6 Rb4 Ne4 Bg8 Bh3 Be6 Ra7 Bg4 Nc5 Nb1 a3 Qb3 d1Q Qa4 a2 Rd4 d2 Rb4 Nbd7+ Kc6 Nb6 b8N Qe1 Nd7 d1R Na3 Na8 b6 Rb8 Kb5 Nd3 b7 Kh8 Nc2 Qh6 Bf4 Nc1 Ne2 g1B Nf6 g2 Rd4 Bh2 Ng3 g1N Bc8 Rd3 Rb1 a1B Nh1 Bb2 Ng8 Bg3 Rd8 Rd5+ Kb4 Raa5 Qd7 Rab5+ Kc4 Bh2 Ra1 Bg3 Ra6 Bh2 Re6 Bg3 Ree8 Bh2 Be2 f1Q Bd3 f2 Be2 Qg7 h6 Bg3 h7 Qh6 Bd3 Qg2 Be2 f1N Bd3 Qgf2 Be2 Ra5 Kb4 Nd2 Bf1 Ndb3 Kc4 Na1 Kb4 Rd2 Kc4 Ra6 Kb5 Rg6 Ka5 Rg5 Kb5 Bf6+ Ka6 Rdd5 Qe7 Rb5 Qe3 Kg7 h8Q+ Kf7 Bg4 Be5+ Be6+ Kg6 Bc8 Bh2 Qf6+ Kh7 Qd6 Kh8 Bd7 Rc8 b8Q Rc7 Bc8 Re7 Qbb6 Rb7 Qd7 Bb8 Bc7 Be5 Qbc6 Bd4 Bf4 Bde5 Qcd6 R7b6+
r4N2/1Kn4R/3RrqB1/1R5N/B1b1P3/2n4Q/bq1NkbQ1/Bb2rnnq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kc4 b4 h5 e3+ d3 g5 f5+ Ke5 a5 g6 d5 c3 h3 g7 h2 b6 d4 b5 a4 e4 a3 b7 f3 b6 f4 Bb2 h4 Bh3 a2 Ne2 d2 Qf1 Kd3 c4 d1N c5 f2 c6 f3 c7 Nd7+ Kd5 Ne5+ Bd7 h3 b8N Nc3+ Ke6 Rh6+ Kf5 Re6 b7 Nf6 g8Q Ne8 Qfg2 f1N Q8g5 f2 Bc6 Bc5 Q5g3+ Nf3 Nd2 Ba7 Qg4 Ng1 Rd1 a1Q Ng3 Bc5 Kf4 Qf6+ Qf5 Qb1 Ba1 Qb2 Nh5 Ke2 Nd7 d3 b8R Ba6 c8B Bc4 Nf8 Nc7 Rb4 Ba2 Ba4 Bb6 Rb5 Bb1 Nb3 d2 Bd7 Ba7 Be8 Bb6 Bg6 Ba7 Rc1 d1B Nd2 Bb3 Rd1 Bc5 Nf3 Ba7 Rd6 B3a2 Nd2 Ne3 Qg3 f1B Qg5 Ke1 Qg2 Bfc4 Bf7 Nf1 Bg6 Qh8 Qfg4 Bf2 Q4g3 Ke2 Qh4 Rf6+ Ke5 Qg7 Re6 Qh6 Kd6 Qh8 Kc6 Qh6 Rd6 Re6 Bf7 Qf6 Bg6 Nf3 Rg1 h1Q Kb7 h2 Qhh3 Qc2 Qg5 Qb2 Rg4 Ng1 Rh4 Qhf3 Qgg2 h1R Qg5 Rh2 Qgg3 Qh1 Qhg2 Rh3 Qg4+ Rf3 Q4h3 Re3 Nf4+ Ke1 Rh7 Re2 Rb3 Kd1 Nh5 Re1 Rb5+ Ke2
2K5/N1n1qB1B/Rr1rbr1N/1n4Q1/1qP3R1/1bbRn1BQ/4bq2/1k3q1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 Kc2 Ne2 a2 Be3 h2 Ng1 d2 Nh3 d1B Qa5 f2 Qb4 f3 Qe7 d3 Rg1 h1R Rg4 d2 Bg2 f1N Nc3 f2 Qf7 Bb4 Qf5 Be6 Bf4 Nf6 g8Q Ne8 Bg3 Nd6 Qgg5 Rh6 Nb5 Rf6 Na7 Na6 b8Q Nb5 b7 Qe7 Qh8 Be2 b8R d1B Rd8 Nac7 Rd3 Ne3 Qhh7 f1Q Nf2 h3 Qf3 h2 Qh3 Qe1 Bf1 Rg1 Qh1 Kb2 Bg2 Bb3 Bf3 Bf1 Bd1 Be2 Bc2 Rb8 Bb1 Nd4 Bc2 Bc3 Bb1 Qf7 Kd6 Ndb5+ Kc6 Qf1 e5 Qe7 Bc2 Rd8 Kb7 Rd6 Kb8 Qe1 Bb1 Qd2 Bc2 Rb1 Kb7 Bf5 e6 Qe1 Kc8 Kc1 Qa8 h1Q Qf3 Qhf1 Qfg2 Rd7 Qgh1 Qb4 e7 Be6 e8B Rd6+ Kb7 Kb2 Bf7 Qg1 Re4 Qg2 Ng4 Qgf2 Nh6 Qef1 Rg4 Q1e1 Rd5 Kc1 Bh7 Qef1 Rf5 Kc2 Kb8 Rb2 Rd1 a1Q Rd3 Qae1 Rc5 Kb1 Rc6 Qf5 Rb6 Qe5 Ra6 Qef2 Qgh5 Qg5 Q5h4 Qg7 Qg5 Qf8+ Kb7 Qe7 Be5 Na3+ Nb5 Bbd1 Rh4 Qa4 Rg4 Rb4 Bg3 Bb3 Rb6 Qa5 Na7 Rb5 Kb8 Qb4 Kb7 Rc5 Kb8 Nab5 Ra6 Rcc6 Kb7 Bd5 Kb8 Rb6+ Kc8 Be6+
2R3bk/2Bq1r1n/1R1N2B1/2n1nPBQ/R3r3/Nbrq3N/3rnq1K/Q5b1 w - - 0 1 illegal: No possible last move, all moves rejected
2q5/KR6/b2N1rPq/1Nrq3Q/4n1nB/2bBB1Q1/NQ3Rr1/nb1rkb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 Kb5 f5 c4 d5 e3 f3 g5 f2 b7 d3 g6 h3 c5 d4 c6 f4 c7 f3 Kb6 h4 b5 a4 Qb3 a3 Bd2 h2 Qc2 a2 Qb3 h3 Qc2 Bg7 Ba5 Rh5 Qd1 d2 Na3 d3 Rb1 a1N Ne2 Bc3 Nc1 Nh6 Na2 Na6 b8B Nc5 Ba7 Ba6 Rb3 Qd5 c8Q Ng4 Qc7 Rah8 Qe2 d1R Qg3 d2 Rg1 h1R Rg2 h2 Rb1 Rf8 Rb2 Kf5 e4+ Kg5 e5 Rf6+ e6 Rg1 Bb4 Ne4 Be7 h1Q Rh2 Rg2 Bd8 Nd6 e7 Qc4 e8N Ne4+ Nd6 Qc8 Qh3 Kf4 Rb4 Rf7 Bh4 Rf6 Qe1 Rc5 Bd3 f1B Qeg3+ Ke3 Rb3 Rg1 Rf2 Rg2 Rb1 Nh6 Qf5 Ng4 Qh5 Qh3 Bb8 Be2 Ka7 Bf1 b6 Be2 Bb5 Bd3 b7 Bc2 Rb4 Bb1 Bd3 Qh2 Bc7 Qh1 b8Q Qh2 Qge5 Qf4 Bb6 Qh6 Rf1 f2 Nab5 Re1 Qh2 d1Q Qg3+ Kd2 Qb7 Qb3 Qb8 Qd5 Rb3 Rc6 Be3+ Kd1 Qb6 Rc4 Qd4 Rc5 Qde5 Bb4 Qb2 Bc3 Rh1 Reg1 Rh2 f1B Rb4 Rc2 Rf2 Ke1 Na3 Rc1 Rb7 Rg2 Nab5 Rd1
4q3/2PB1b2/q2b1BN1/qN1Rn1r1/rbk2b2/2r1RBNn/2QKn2R/1n2Q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 g5 h4 f5 h5 a5 h6 d5 e5 f3 h7 f4 c5 g3 b6 d3 b5 d4 c6 Kd5 b7 f2+ Kd2 g4 b6 a4 e6 a3 c7 f3 e7 g2 e8B g3 Rh2 a2 Qa4 Na6 b8R Be6 b7 Bb4+ Nc3+ Kc4 Ba3 Nh6 Qc2 Ng4 Bc6 Qe8 Rd8 Bf7 b8Q Rg8 h8N Ne5 Kd1 Rg5 Nh3 g1N Rh1 g2 Bd7 Ne2 Bf5 g1B Bd7 d2 Qg6 Bh2 Qf5 Bf4 Kc2 d1N Bg2 f1Q Bc1 f2 Ne4 Qe1 Rb1 a1B Bf3 f1Q Ng3 Nf2 Ng1 Nh3 Rh2 Bac3 Qh7 Bd6 Bb2 Bcb4 Ng6 Ra7 Ba1 Ra8 Rb3 d3+ Kb2 d2 Kc2 d1R Re3 Rd3 Bc3 Ba5 Qb1 Bab4 Qd1 Ra7 Qd2 Qa1 Qe1 Qa5 Bb2 Rc3+ Kd2 Nc5 Ba1 Na4 Bb2 Nb6 Ba1 Nc1 N1e2 Ra6 Nd4 Ne2 Bb2 Ra8 Qf2 Qfa1 Nb5 Qa6 Qe1 Q1a5 Nh8 Kc5 Qc2 Nbc4+ Kd1 Ra7 Ng6 Na3 Kd2 Kc4 Bdc6 Be7 Rd5 Bed6 Bd7 Q6b6 Bc8 Nd3 Bb7 Qa4 Qcb1 Rb3+ Kd1 Ra8 Bf6 Rc3+ Qc2 Ne5 Kd2 Ra5 Bc6 Qa6 Nd4 Q4b5 Bd7 Ra4 Qcb1 Qc5 Qc2 Qca5 Nb5 Nb1+
3r1QRN/n2b2nB/rR5N/k4n2/3rr2q/r2bb2Q/1K2BBPr/1n2RQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 e4 d5 b4 Kd7 c4 Kc7 Kc2 Kb6 e5 f5 e6 a5 e7 h3 e8B a4 Qf3 h4 Qg3 h2 Ra3 h3 Qb3 f3 Bd7 f2 Bc6 f4 Bd2 f3 Ne2 d3+ Kb2 d4 Ra1 a3+ Ka2 Qh4 Bf4 d2 Qd3 d1N Be3 Bh6 Be4 Nc6 Bh7 Ra6 Nbc3 Na7 Ng3 Nf6 Be2 f1B Nf5 f2 Ne4 Bd7 Rb1 Ne8 Ned6 Ng7 Nf7 Rd8 Nh8 Nc3+ Ka1 a2 Kb2 Bf4 Nh6 a1R Re1 Nb1 c5+ Kc7 c6 Kb6 c7 R1a3 Rg1 h1N c8Q h2 Qcc4 Ng3 Rh1 Kb7 b6 N3f5 b5 Bg5 Qdb3 d3 Bd4 d2 Qh3 d1R Rg1 Kb8 b7 h1R Qf7 Kc7 b8R Be3 b6+ Kc6 b7 Rh2 Ra8 Kc7 b8Q+ Kc6 Bc5 Rd4 Qb5+ Kc7 Qf8 Re4 Rh1 Rd4 Rb8 Re4 Rb6 Rd4 Bd1 Bd3 Be2 f1R Qc4 Rff4 Rhf1 Qe7 Rf3 Qh4 Rg3 Rfe4 Qcf7 Ne7 Qf1 Nef5 Rg5 Ne6 Rg8 Neg7 Rb8 Kc6 Bb6 Kb5 Bc5+ Ka5 Rb6 Rda4 Bd4 Bf4 Bg1 Rad4 Bf2 Be3
q3nNrQ/4r1N1/QR1N4/rnK3Rb/Q1B1r3/B1nBn1P1/7n/b3kbn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 b4 Kg4 e4+ Kg3 e5 Kf2 g3 a5 b6 h5 c3 d5+ Kb5 f5 b7 h3 c4 h2 e6 f3 c5 d3 c6 f4 c7 d2 e7 h4 e8Q d4 Qb3 d1N Qa4 h3 Qe6 d3 Qea2+ d2 Q4c2 a4 Qe4 a3 Kb6 Na6 b8N Bg7 b5 Bg4 Qac2 a2 Na3 Rh4 Qc3 Nf6 Bc4 Bh5 Qe7 Ne8 Qd7 Ke1 Qcd3 f2 Qg6 f1B Rb1 a1R Ne2 f3 Nf4 f2 Ne6 Ne3 Qh6 Bh8 Ng7 d1N Bd3 Ra2 Nc4 Re4 Nd6 Ra5 Ba3 Re7 Rb2 Nc3 Qc6 Re4 Nd7 Ra7 Qc4 Qa8 c8B Nac7 Kc5 Rb7 Qa4 Rba7 Rg1 h1N Nf8 h2 Be6 Rb7 Bec4 Rb8 Kb4 Rb7 b6 N7b5 Rb3 Rbe7 b7 Nd4 b8Q Bf7 Rg2 Nc7 Nh7 Nb1 Rc3 Be2 Bd5 f1N Qg5 Nf2 Ne6 h1R Rc5 Nh3 B5c4 Ng1 Qb6 Bg6 Qh6 Ne8 Nhf8 Rhh4 Qh7 Bgh5 Qa6 Nh2 Rb5 Bf6 Qh8 Bf1 Rb2 Rhg4 Rc5 Rg8 Ng7 Be5 Rb5 Bf6 Rb6 Be5 Rf2 Bf6 Rf5 Nb5 Rg5 Ba1 Kc5 N1c3
b2b1K1k/1BN1nbnr/1b6/N3r2q/1RP1Qr2/RBB1b1Q1/4n2Q/1N1n2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 Kd3 f5 c4 Kf7 h4 g5 e4 Kg7 b4 a5 b6 a4 b5 f3 h5 g3 b7 g2 b6 a3 e5 f4 e6 g4 e7 f2 e8B a2 Ne2 g1B Qd2 g3 Rh4 g2 Ba3 f3 Nec3 Bc5 Bg6 Ne7 Rh2 Nd7 b8Q Rh7 b7 Kh8 h6 Qa5 Qe2 Bb6 Nd2 Nc5+ Kc2 Ne6 Kb3 d3 Bb2 d4 Ndb1 d2 Nd5 d1B+ Bc2 Ng7 Qe4 d3 Qg3 d2 b8N Be6 Bc3 Bf7 Nc6 Re8 Nc7 Qh5 Kb4 Be2 Rh3 d1N Na5 Bd3 Be2 f1R Bb3 f2 Bg4 Be2 Bc8 Bf3 Bb7 Be3 Nd2 Bb6 Rb1 a1B Rb2 Be3 Nb1 Bb6 Ra2 Bb2 Ra3 Bc1 Ra4 Bg5 Kb5 Bbe3 Rb4 Bb6 Na6 Bd8 Kc5 Be3+ Kd6 Beb6 Nc7 Be3 Qeg4 B3d5 Qe4 Bb6 Ba6 Ba8 Bc8 Ng8 Bb7 Re5 Kd7 Ne7 Kd6 Re1 Kd7 f1N Kd6 Bge3 Kd7 g1B Kd6 Ne6 Kd7 Rg7 h7 Re2 Kd6 Rf2 Kd7 Rf4 Kd6 Bg8 Kd7 Rgf7 Ke8 Ng7+ Kd7 Bed4 Qgg2 Ng3 Rh2 Ne6 Ke8 Qf3 Bd5 Kg7 Bb7 Bde3 Qh3 Qg4 Ra2 Ne2 Ra1 R7f5 Qhf3 Rh5 Ra3 Qf5 Kd7 Bf7 h8Q+ Kg6 Qf2 Rhh4 Qh5+ Kg7 Qg5+ Kh8 Qgg3 Rh7 Qfh2 Bg8 Ke8 Qg4 Qf5 Ng7+ Kf8 Bf7 Qe4 Qh5
2rrQQ1b/1rRb4/Kn2B3/RN3Pb1/1B4q1/Q1b3bn/RN1N1b2/1rk4n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kg6 c4 Kf5 b4 Kf4 h5 e5 f3 a5 h6 d5 b6 g5 b5 g3 c5 g2 h7 d3 Kc3+ d2 b7 Ke3 c6 g4 c7 d4+ Kc4 g3 b6 a4 Kb5 d3 f4 a3 f5 a2 Nf3 g1N Nc3 g2 Ng5 Bd7+ Kc4 Nf6 c8R Nh5 Nb5 Be7 Ba3 Ng3 Bb2 Nh3 Ba3 g1B Rc6 Bf2 Nd6 Qg8+ Kb5 Ra7 Rb1 a1B Nf3 Bg5 Qb3 d1R Rb2 Rb1 Bb4 Qg6 Ra2 Rc8 Rg1 Nh1 h8Q Bc3 Qh6 d2 Qa3 d1R Qf8 Qh5 Qe8 Qg4 Bc4 Rd2 Bg8 Ke2 Rg2 Kd1 Nc4 e3 Nb2+ Kc1 Be6 e2 Ra1 Rd4 Nd2 e1B Qf8 e4 Ra2 Na6 b8N e3 b7 Nc5 Na6 e2 b8Q Na4 Nc7 Rb7+ Ka6 Nb6 Nb5 Bg3 Rc4 Bef2 Rc7 e1B Rg1 Be5 Rg3 Bef6 Re3 Bh8 Re5 Re8 Qd8 Rd6 Qde7 Rc8 Qee8 Rd3 Nd6 Bg3 Ra5 Bef2 Nb5 Bc6 Nf1 Rdd8 Nd2 Bd7
2NqR3/2r2Q1q/3R1B1n/BBq3bq/1q1RQN2/3bPb1N/1Kn1b2k/3q3r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 Kc2 Kf5 b4 Kg4 g3 a5 e3+ f3 b6 h5 b5 d5 c5 f5 c6 f4 c7 a4 b7 d3+ Kb2 d2 b6 d4 Qe2 d1B Qf2 d3 Rh3 a3+ Kc3 a2 Qg2 d2 Bb5 f2 Ba6 f1Q Qe2+ f3 Qh2 f2 Kb2 Be7 Ne2 Bg5 Bd3 Bf5 c8N Nc6 b8R Nb4 b7 Ra7 Ba6 Bd3 Nbc3 Qe1 Ng1 f1B Qg2 Nh6 Nd5 Bf3 Nf4 d1Q Bb5 Nc2 Bd2 B1e2 Ba5 Rh7 Rh2 h3 Rh1 h2 Ngh3 h4 Rg1 Bc6 Qe4 h1Q Ra8 Bd5 b8B Rac7 Ba7 Qh2 Bd4 Rh8 Rb1 Bc6 Bf6 a1Q+ Kb3 Qa4+ Kb2 Qc4 Ra1 Qcd5 Ra4 Qc5 Rd4 Bd5 Ra6 Ba8 Rf1 Rhh7 Rad6 Bb7 Ng1 h3 Rf2 Qh1 Rf1 h2 Ngh3 Qf3 Rf2 h1Q Rh2 Bf1 Rd2 Bfe2 Re6 Ba8 Re8 Rh8 Rd6 Bc4 R2d4 Bcd3 Qc6 Qe4 Qd5 Kf3 g4 Kg3 Qc6 Qh7 Qe4 Bh4 g5 Kh2 g6 Bg5 g7 Qeb4+ Ka2 Qf3 g8Q Qh5 Qf7 Bb7 Qee7 Bg2 Qe4 Bgf3 Re5 Rg8 Be7 Bh4 Bf6 Rg1 Re7 Rh1 Re8 Qbe1 Kb3 Bg5 Kb2 Qeb4+
1NRK2br/nQ3b1b/3QPnk1/1bb2b2/1r1Q3R/3BBR2/2rrN3/4qqB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 a5 e4 h3 g5 h2 c5 h4 b6 h3 c6 a4 b5 a3 e5 f3 b7 f4 c7 a2 b6 f2 Be2 f1B Bb2 f3 Qe1 f2 Qb4 Nf6 Qd6 Ra4 Na3 Qe8 Nc2 Nc6 b8Q Na7 b7 Rb4 Bc1 Kg6 Be3 Be6 c8Q Bg8 Qcc5 Qe6 Rb1 a1R Rb3 Rc1 Qbc8 Qe8 b8B Qe7 Qb7 Bf7 Kd2 d3 Kc3 d2 Qd4 d1R Ba6 Bb5 Ne2 f1Q e6 Rd2 Bc7 Bg8 Bb6 Qh7 Ra3 Qh4 Bg1 Qhe1 Bc5 Kf5 g6 Be7 g7 Kg6 Qdc7 Bd6 Bb6 Bc5 Qd6 Rc4+ Kb3 Ra4 Nb4 Rcc2 Nc6 Rac4 Qe3 d4 Nb8 d3 Qed4 Ra4 Ra2 Rb4+ Ka3 Kg5 Rb2 Kg6 Rb3 Rb2 Be3 Rdc2 Bg1 d2 Rf3 d1B Be3 Rd2 Bg1 Rbc2 Be3 Bd3 Bc4 Bf5 Bd3 Rb5+ Ka4 Rbb2 Ka5 Rb4 Nc3 Be2 Be4 Bb5 Bd3 Be8 Ne2 Bef7 Rg1+ Kh5 Rg4 h1B Bg1 h2 Rh4+ Kg5 Ka6 Bg2 Ka5 h1B Ka6 Bgh3 Ka5 Bgh7 g8R+ B5g6 Rd8 Bfg8 Rc8 Bhf5 Ka6 B6f7 Ka5 Rb1 Be3+ Kg6 Ka6 Ba3 Bc5 Bb4 Kb6 Ba3+ Kc7 Rb4 Kd8 Bg2 Rfh3 Bc6 Rf3 Bb5 Bg1 Nh5 Qb2 Nf6 Bce3 Re4 Qbe5 Bc5 Qf4 Ra4 Qfd4 Rb4
2N4b/1K3bqr/1RB1R3/5NBq/1n2rrq1/Q2n1Rr1/1bqB1P1k/2Q1Qb2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 Kg5 b4 d5 b6 h5 b7 a5 c5 e5 c6 a4 b5 a3 b6 d3 Kc3+ e3 c7 a2 Be2 d4+ Kc4 e4 Kb5 h3 Bb2 Kh4 g5 h2 g6 d2 g7 d3 Bg4 e2 Bc3 e1R Qc1 d1Q Qc2 d2 Be6 e3 Qg6 e2 Qg2 Nf6 g8Q Ba3 Q8g6 Qg8 Qc2 Qg7 Qd5 Nbd7 Kc6 Rh7 b8Q Ra4 b7 Bb2 Qdd3 Nc5 Na3 Rf4 Rb1 a1B Nc4 Nd5 Qc1 Qc2 Nd6 d1Q Bd2 Nb4+ Kb6 Rf1 Qa3 e1R Ne2 Ncd3 Bd5 Kh3 Nd4 h4 Bc6 Qdg4 N4f5 Be6 c8R Ree4 Re8 Rg1 Nc8 Bf7 Re6 Rg3 Qe5 Kg2 b8B h3 Re1 h1Q Kb7 h2 Re3 Qhd1 Bc7 h1B Rf3 Kh2 Bd8 Bg2 Bg5 Qh1 Qec3 Bf1 Qe1 Kg2 Qc5 Qhh5 Qce3 Kh2 Qc1 Qgh6 Qee1 Bh8 Rb3 Qg7 Rb2 Na6 Rb3 Bb2 Rb6 Nab4
N1rb1n2/1b3Nk1/2R1Q2q/1nB2Kn1/1Bq3Bq/b1rn1bR1/1N2P2q/6QQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Ke4 f5+ Ke5 Kf7 b4 d5 g4 a4 c4 a3 g5 a2 g6+ Kg7 b6 f3 b7 h3 c5 f4 c6 f2 c7 h2 b5 h4 b6 h3 Qa4 d3 Qc6 d2 Qb5 d1N Qa5 f3 Ba3 d4 Bc5 d3 Qb5 d2 Qa4 Nh6 Be7 Nb2 Bb4 d1N Qb3 Ra3 Nc3 Qh4 Rc1 a1B Qe6 Nf7+ Kf5 Nd3 Na4 Bf6 Nb2 Nd7 b8B Ng5 b7 Rc3 Ba7 Bd8 b8Q Bb7 c8N Bfe7 Qc7 Nf8 Bac5 Qc4 Bg2 f1B Qcc6 f2 Bf3 Bg2 Nb6 f1Q Na8 Qe1 Bg4 Qh4 Nf3 Rg8 Re1 h1Q Rg1 h2 Ne5 Bf3 Rg3 Qg1 Qcd5 h1Q Nf7 Qgh2 Qdc6 Rc2 Qcd5 Nc3 Qde4 Nb5 Q4d5 Rh8 Qdc6 Kg8 g7 Rc3 Qcd5 Ne5 Qd1 Nd3 Qg1 Qh6 Qg2 Qe1 Qh1 Qef2 Rc2 Q2h4 Rc1 Qfh2 Rgg1 Ng6 Ba7 Bb6 Na4 Qc6 Nb2 Nh7 Bh5 Rb3 Ba5 Ba3 Bb4 Qc3 Rg5 Qcd4 Rc7 Rc3 Rc6 Qc4 Rg1 Bc7 Bac5 Ba5 Qe3 Bc7 Bg4 Ng5 Qc1 Kh7 Rg3 Rc8 Qcg1 Nf8 Ne5 Qd6 g8Q+ Kh6 Qd5 Bd8 Nf7+ Kg7 Qe4 Qdh6 Qe8 Kh7 Qe6 Kg7
4qq1K/QRN3RB/5Q1n/N1BQ3q/1n4N1/1pr1q1kr/b1Pr1q2/4b1bR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 e5 a4 h5 f4 b5 g4 d5+ Kf3 d3 a5 d2 a6 d4 Ke4 d3 a7 h3 Ra3 h4 Be2 h2 Ra5 h3 Bb2 Na6 Ba3 Ne7 Nf3 Be6 Rf1 h1Q Ra4 h2 Rg1 Rc8 a8Q Ba2 Qa7 Qg2 Ra5 h1Q g5+ Kg7 f6+ Kg6 f7 Kh5 f5 Kg4 g6 Qh3 g7 Rc3 f6 Qe8 g8R+ Bg7 Qf1 d1R f8Q d2 f7 Rh7 Rh8 Ng8 Bd3 Qhg3 Rh1 Rh3 Qfc5 Bh6 f8N Be3 Ra4 Bg1 Ne6 Q2h2 Qc4 Qe1+ Kd5+ e4 Rh7 Kg3 Ke5 e3 Rb7 e2 Qd5 Qg2 Nh2 Qe4+ Kd6 Qe3 Qf7 Qf1 Bh7 e1B Nc7 Qf8+ Kd7 Qff2 Qfe6 b3 Qeb6 b2 Bc5 b4 Qf6 b3 Na3 Rd3 Re4 Nb4 Ke6 Qef3 Rf4 Q3e3+ Kf5 Qee8 Nc4 b1Q Na5 Qc1 Kg5 Re3 Re4 Rc3 Re7 Qa3 Rd7 Qee3+ Kg6 Qa4 Re7 Qae8+ Rf7 Qd6 Kg7 Qdf8+ Kh8 Rb1 Rb5 d1Q Re7 Qdh5 Rb7 Rd1 Ng4 Rd2 Rg7 Nh6+
1b6/7b/3Nqbq1/1K2r3/Q1b1nQ1B/p1RRPn1b/Nk1NB1n1/r2q1B1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 f5 h4 a5 b6 d5+ Kb5 g5 c4 a4 b7 f3 h5 f2 h6 d3 c5 Kd4 c6 g3 c7 g4 h7 f4 Nd2 Kc3 Ra2 f3 Rh6 g2 Rf6 d4 Re6 g3 Nh3 g1B Rb6 g2 Nf4 Qd6 Ba3 Be6 c8B Bh2 Qb1 g1Q Nb3 d2 Bg2 f1B Qf5 d1Q Qb1 d3 Rd2 Nc6 b8Q f2 Qa7 Bd5 Bg4 Nf6 B2h3 Rg8 h8N Ne5 Nf7 Qe6 Nd6 Be7 Bg2 Ne4 Rc6+ Nc5 Bc1 Nf3 Qa6 a3 Qa4 Bf6 Bh5 Rae8 e3 Nh4 Be2 Re7 Bh3 Qg6 Rc8 Bfg2 Rc7 Bge4 Bhf1 Ng2 Rc8 Bf5 Rc6 Bh3 Rc8 Qe1 Rd1 d2 Nd3 Rf8 Qa1+ Kc2 Bb2 Rff7 Bc3 Ne4 Ndc1 Bg3 Na2 Rf8 Nc4 Bb8 Be5 Rh8 Bg3 Rh5 Bh4 Reh7 Rf8 Re5 Nd6 Rc7 Rd8 Rc3 Rb1 d1B Nd2+ Rb3 Qa8 Rc3 Rb3 Rc6 Qd4 Rc8 Rc3+ Kb2 Qda7 Bc2 Qh7 Qd1 Qa4 Ng5 Qh6 Nf3 Qf4 Rc4 Qh2 Rd4 Qh1 Bd3+ Ka5 Rc4 b5 Bb1 b6 Rc8 Rd3 Rc1 b7 Bc2 Rc3 Ra1 Kb5 Bce4 Bc4 Bd3 Be2 f1N Rd7 Ng3 Rd8 Ba7 b8Q Ne4 Qc7 Bb8 Bf1 Nf2 Qf7 Bdf5 Bce2 Ne4 Qf8 Qgg8 Qh6 Bh7 Qf4 Qg5 Rd3 Qg7 Rc8 Qg6 Rcc3 Bc4+
1Q1R4/rN3q2/4n1q1/4NkPK/RB4n1/1NbqpB2/r1nQ3n/Bb2rRn1 w - - 0 1 illegal: No possible last move, all moves rejected
2b4n/3q1Bq1/1k6/1Nr1bPNK/q2p2RR/Q2N1R1q/rnQ2B2/2B1qrb1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 a5 g4 h5 b4 d5 c4 Kd7 f4 Kc7 f5 e5 c5 d3+ Kf2 e3+ Kf3 h3 c6 h4 g5 d2 Kg4 a4 g6 a3 g7 e2 Rh2 e1B Rf2 e4 Nc3 e3 Rh2 e2 Rh1 a2 Ne4 h2 Nc5 h3 Qc2 d1Q Nf3 Bc3 Ng5 Qd7 Nd3 Nh6+ Kh5 Kb6 g8R Na6 c7 Bc5 Rb1 a1R Rb3 e1Q+ Be2 Bg1 Bg4 Kb7 b6 Be5 b5 Nb4 Rg6 R8a2 Be2 Ka8 b7+ Ka7 b8B+ Kb7 b6 d4 Rc3 Rd8 Bg4 Nf7 Rg8 Ka6 b7 Nh8 Bf3 Kb6 Rb3 Qdd2 Bd5 Qg2 Bf7 Qa4 Rc3 Rd5 Rg7 Rc5 Ra3 Bd7 c8Q Be6 Qf8 Bc8 Bd6 Qgc6 b8N Qd7 Nc6 Qg3 Na7 Qg2 Nf2 Nd3 Nb5 Nb2 Rf3 Qg3 Nd3 Rb1 Be3 Rf1 Bc1 Qe1 Rg8 Qg3 Ne4 Qg7 Ng5 Rc4 Bb4 Rc5 Be1 Be3 Rg1 h1Q Bf2 h2 Rg4 Qg1 Rgf4 h1Q+ Rh4 Qh3 Qe7 Rd5 Qa3 Qgg3 Be1 Bg1 Bf2 Rc5 Nh7 Qf8 Rg4 Qg8 Ng5 Qg7 Rff4 Qe3 Rf3 Qe1
3bN3/1q1kB3/r5B1/1bnqP1r1/2p2nK1/3R1Qb1/1bn1B1N1/QRqbQ1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 h5 g4 a5 d4 h3 e4 c3 b6 c2 d5 h4 b5 h2 b7 h3 e5 a4 b6 a3 d6 a2 g5 Kd7 g6 Ra6 g7 Rh5 Ba3 c1B Ne2 Rg5 Rg1 h1Q+ Bg2 h2 Qf1 Nf6 g8B Nd5 Nec3 Be7 Nd2 c4 Rb1 a1B Bc5 Bab2 Bh7 Qg8 Ba3 Bd8 Nde4 Be3 Qc1 Bf2 Bg6 Bg3 Nd1 Qh7 Ne3 Qg7 Rd1 Qe1 Bh3 h1Q+ Ng2 Qd2 Qc3 Qc1 Rg1 Qg8 Qe1 Qf7 Bg4 Qg8 Ke2 f3+ Kf1 f2 Ke2 f1N Kf3 Nfe3 Nf6+ Ke6 d7 Nc2 B4h5 f4 Ne8 Qf7 Be7 Qh7 Ke4 Qg8 Bd1 f3 Be2 f2 Kf3 f1B Bh5 Bc7 d8R Nf4 Bg6 Nd7 b8Q Nc5 b7 Bd7 Qa7 Bb5 Rd3 Bd8 b8Q Qf7 Qba8 Qg7 Bf6 Qgh7 Qe4 Qb7 Be7 Qd5 Qb6+ Kd7 Qba5 Qh7 Qa1 Qf7 Re3 Qb7 Ra3 Qfd5 Rd3 Rh5 Kg4 Rf5 Bf3 Be2 Qe3 Bd1 Be2 Rh5 Qf3 Rg5+
r7/qb1N3r/5bn1/3Npn1q/QBP2nN1/K1bk1BQ1/2R2BRn/3nR1r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 d5 Kb3 e5 g3 h5 b6 a5 b7 d3 Rh2 a4+ Ka2 h3 b4 h4 b5 d4 b6 d2 Bb2 d3 Qe2 d1R Qe1 e3 g4+ Ke4 g5 e2 g6 d2 f5 a3 g7 Qd7 f6 Ne7 g8R Ng6 f7 Kd3 Nc3 Nf4 Nf3 Nc6 b8B Qa7 b7 Bg7 f8Q Rh7 Qf6 Ne7 Bg2 Neg6 Qe6 Bf6 Qg3 Rg1 Bd6 e1N b8N d1N Nd5 Bb7 Kb3 a2 Bb4 Rh1 Rc1 a1B Qa6 Rg1 Bd4 Bc3 Rh1 h2 Qa4 h3 Ka3 Bh4 Rc2 Bf6 Nh4+ Nf3 Nd7 Rf1 Rg1 h1N Bf2 h2 Nf5 Re1 Nfe3 Rf1 Qg5 Ng3 Ng4 h1Q Qh4 Nf5 Qg3 Qh5 Rh1 Nde3 Rg1 Rc1 Re1 Nh2 Bf3 Nd1 Rf1 Nge7 Nge3 Ng4 Qh3 Nh2 Rg2 Neg6 Ng4 Nde3 Qg3 Rb1 Re1 Rc1 Ree2 Rg1 Re1 Nd1
1qB1n1KQ/qQQ1B3/n2n1b1n/3qp3/1PR2N2/nb2R3/NkB5/1N2rr1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 a5 g4 d5 b4 h5 f5+ Ke5 b6 e3+ Kd3 a4 g5 h3 c5 h2 g6 e2 b7 e1R g7 h4 c6 h3 c7 a3 f6 a2 f7 Nh6 g8N Na6 b8Q Bg7 f8Q Bf6 Nd2 Nf7 Qf3 Be6 Qb7 Qb8 Rb1 a1Q Kc2 d3+ Kb3 Kd4 Nc4 d2 c8B d1N Bd7 Nc3 Qfc8 Ne4 Nd2 Ned6 Bd3 Ne8 Qh5 Qa5 Rb2 Qb6 Nb1 Q6a7 Bc2 Rf1 Bd1 Kd3 Rc2 d4+ Rc4 Bd5 Qcc6 e5 Ne2 Rh7 Rg1 h1N Qcb6 h2 Bg5 Ng3 Nec3 h1Q Q6c7 Nf5 Ne7 N5d6 Na2 Be6 Rg4 Qd5 Re4 Rh8 Qh6 Rh7 Qf8 Rhh1 Ng6 Re1 Bc8 Rhf1 Nbc3 Rh1 Nf4+ Kd2 Re3 d3 Qh8 Ref1 Be2 Re1 Ka4 Kc2 Bd1+ Kb2 Nb1 d2 Bc2 d1N Bh4 Qg2 Bg5 Nc3+ Ka5 Ncb5 Bh4 Bg7 Be7 Bf6 Ka4 Na3 Ka5 Qf2 Ka4 Qd4 Ka5 Qdd2 Kb6 Qd1 Kc6 Ra7 Rcc3 Bb3 Kd7 Qd5 Rc4 Ra8 Rg3 Qfa7 Re3 Bg7 Bg5 Ref1 Ke7 Bf6+ Kf8 Nab5 Rf3 Qad4 Qcc6 Bd8 Qcc7 Nc5 Nc1 Ra1 Na2 Na6 Re3 Qda7 Na3 Rae1 Nb1 Na3 Kg8 Be7 Bh6 Bg5 Bf8 Bf6 Be7 Nh6+
3r4/n5N1/1r1bq1NN/Q1QPB2K/1Qn1p1b1/2R1qR2/bn1kBb1b/1q3R2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 f4 Kd6 d4 Kd5 g4 h5 b4 c5 b6 a5 f5 e5 b5 h3 f6 h4 g5 a4 b7 c3 g6 Kc4 g7 c2 f7 e3 Kf3+ e2 b6 a3 Bg5 c1Q Bf4 h2 Bg5 a2 Qe1 Kd3 Be3 c4 Qf2 h3 Qg2 c3 Qg3 c2 Qg2 Nd7 Kg4 Qf6 b8Q Ra6 b7 Rb6 Qd5 Bd6 f8Q Ne7 g8N Nc6 Na3 Na7 Nh6 Qe6+ Kh5 e4 Bf2 Kd2 Bg3 e1B Nb5 Bf2 Be2 Ne5 Nc7 Nc4 Ne8 Qa3 Rf1 a1B Qc7 c1N b8R Nd3 Be5 Ndb2 Qcc5 Qe3 Ng7 Rg8 Qe7 Rd8 Qf8 Bd7 Rc8 Ba4 Qa8 Bb3 d5 Ba2 Nf3+ Kc2 Rhg1 h1B Rc6 h2 Nh4 Kd2 Ng6 Bg2 Rc7 Bh3 Rg3 h1Q Rf3 Qg1 Rc1 Qf1 Rcf7 Qg1 Rc3 Qb1 Qe7 Bg3 Rf1 Bh2 R7f3 Bg4+ Kh4 Nc8 Qaa5 Na7 Qcb4 Nd1 Qc7 Ndb2 Qcc5 Qf4 Bf6 Na4 Be5 Bb2 Qcb5 Ba3 Qb3 Bac5 Q3b4 Nab2 Qc6 Bcg1 Qc7 Qe3 Qcc5 Bh3 Kh5 Bf2 Qb3 Bf5 Qbb4 Bg4+
3q2k1/nQQ1bq2/2Q3r1/R1PBqqNr/Krp1N3/1B2B3/5NRq/n1b2b2 w - - 0 1 illegal: No proof kernel
bkq2b2/1rq5/1qqQ2Pq/1N1b2BN/r2pr2R/2Bn2R1/3N1RQn/K4B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 Kc7 g4 a5 c4 f5 Kc2 h5 Kb2 f3 g5 f4 c5 d3 e5 d2 e6 a4 g6 a3+ Ka2 h3 c6 h2 e7 h4 e8Q d4 Qe3 h3 Qa4 d1R Nc3 f2 Be2 f1Q Rb1 f3 Qg5 f2 Qa6 Rh7 Ka1 a2 Nf3 Nh6 Rb2 Ng4 Nd2 Qg2 Bf1 Nd7 b6+ Kb8 b7 Qc7 b5 Nde5 Nce4 Rf7 Ng3 Re1 Nh5 Be6 Rc2 Re2 Bb2 Re4 Bc3 Bd5 Rg1 Qf3 Rg3 h1Q Qa3 h2 Qd6 Ra4 Rb2 Ka7 b8R Nd3 Rb7+ Ka8 b6 Rg7 Ra7+ Kb8 b7 Qf5 Ra5 Qc8 Rab5 Qg2 Rc5 h1B Rcb5 Ka7 b8B+ Ka8 R5b3 Nh2 Rg4 Qb6 Rh4 Rb7 c7 Qg3 Rc2 Qe3 Qg2 Qh6 Ba7 Qc6 Bc5 Qb6 Ba3 Qc6 Bc1 Qb6 Be2 f1Q Rcb2 Qf7 Bf1 Qfe8 Ra3 Qec6 Rc2 Q8d7 c8N Qdc7 Na7 Kb8 Nb5 Qe8 Nf3 Ne1 Kb2 Be6 Qg5 Re2 Bb4 Qc8 Qgg3 Rba7 Bg5 Bf7 Ng1 Ba8 Qg2 Bfd5 Rg3 Rb7 Nf3 Re4 Rf2 Nd3+ Ka1 Qd7 Nd2 Qc8 Ba5 Nc5 Kb2 a1Q+ Kc2 Qa3 Kb1 Nd3 Bb4 Qc3 Ba5 Qcc6 Bc3 Rb4+ Ka1 Ra4+
5nn1/1bB1QRr1/K1Qq1P2/nQ4n1/R2r1Bqn/1rb5/Nkpb4/RN5B w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 f4 Kd6 d4 Kd5 g4 h5 b4 c5 b6 a5 f5 e5 b5 h3 f6 h4 g5 h2 b7 h3 b6 a4 g6 e3 g7 a3 Qd3 e4 Nf3 a2 Qc2 c3 Ng5 Kc4 d5 Ra7 d6 Rh4 Bd2 Nd7 b8R Bb7 Qd3+ Kb3 Nf7 c4 Na3 Kb2 Ne5 c2 Qd5 c1N+ Ke1 c3 Bc4 c2 Bd3 e2 Rf1 h1Q Qb5+ Nb3 Nb1 h2 Bf4 Ba8 b7 Qf3 Nc6 h1R Nb4 Na5 Kd2 e1N Bc4 Qh5 Bd5 Nf3+ Ke2 e3 Kd3 e2 Rd1 Nb3 Kc4 e1N Rd4 Ng2 Rc8 Qe7 b8B Ng5 Bc7 R1h3 Re8 Qe6 Re7 Qhg4 Rf7 Rg3 Qc6 Na5+ Kb5 Rb3 Bf3 Rb7+ Ka6 Be7 Rc4 Nf8 d7 Qd5 d8Q Qd6 Bb6 Rd7 Bc7 Rh7 Qb8 Nh4 Qb5 Bd8 Rd4 Be7 Bh1 Bd8 Bb8 Bb6 Rc4 Be3 Bc7 Bd2 Rd4 Nh6 g8Q Rg7 Qh7 Ng8 Qe4 Rd8 Qe7 Rd7 Nc3 Rd8 Re1 a1B Nba2 Qc5 Rb4 Rd4 Nb1 Qd6 Ra4 Qg1 Nbc3 Qg4 Nd1+ Kb1 Rf1 Bac3 Rg1 Bb4 Ndc3+ Kb2 Rc1 Qh3 Ra1 Qg4 Nb1 Bbc3 Qb4 Nd7 Qb7 Nf8 Qb5 Bb7+
n1Qq2Nk/B1br4/1n3PRN/p6b/3qR3/q2q1B2/QQn1rqrK/B1N5 w - - 0 1 illegal: No possible last move, all moves rejected
6Rn/1q2rB1N/rbq2pbB/b1bK2nP/7Q/4BkN1/2N2bR1/3RrQ1n w - - 0 1 illegal: No possible last move, all moves rejected
r1R1bqr1/4Qq2/N3PB1b/1nK2q2/B2p2Q1/2Rn1b1Q/1bN1k1B1/4Nn1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 b7 f5 c3 d5+ Kb5 d3 e3 d2 g5 f3 g6 f2 c4 a4 c5 h3 c6 h2 c7 h4 g7 a3 Be2 f1Q Kb6 f4 b5 a2 Nf3 d4 Ne1 f3 Na3 f2 Nac2 Nc6 b8Q h3 Qb7 Nf6 g8B Ng4 Bb3 Ne5 Ba4 Bh6 Kc5 Rg8 b6 Bd7 c8Q Be8 Qe7 Na7 b7 Nb5 b8N Qd7 Ba3 Qf5 Rc1 a1B Na6 Bb2 Rg1 h1Q Rg3 h2 Bb4 Qff3 Qh3 Qf7 Ba5 Qf8 Bd8 Qhf3 Bc4 Q3f4 Qdg4 h1B Be2 d1B Rf3 Qg2 Bf1 Qh2 Bg2 f1N Qd6 Qg3 Bf6 Qh4 Qe7 Qh5 Rf2+ Bf3 Rd2 Qg5 Rd3 Qgg7 Rc3 Qgf7 Qg5 Qg4 Qg7 Kf5 e4+ Kf4 Qg6 Qf5 Qgh5 Ng4+ e5 Ke4 Kb4 Kf4 e6 Ne5 Rc8 Ke4 Kc5 Kf4 Ncb4 Ke3 Rc3+ Kd2 Q5g4 Ke2 Nbc2 Nd3+
q3Qr2/B3K2Q/1RQ1pP1R/B4nk1/q1Bb1rr1/1q1bb3/3R2n1/N1rN2r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 h5 c4 a5 b4 d5 f5 e3+ Kd3 h3 c5 h4 b6 e2 c6 e1R b5 e6 b7 a4 c7 a3 b6 a2 Na3 h2 Nh3 Ra4 Qf3 Nc6 b8Q Na5 b7 Re4 Nc2 Rf4 Na3 Bc5 Ng1 h3 Bd2 Nh6 Nc2 Nc4 Ne2 Rf8 Nc3 Kg5 f6 Ne3 Rd1 Nhf5 Na1 Ng2 Be2 Bd7 c8R Qa5 Qc7 Qa8 b8B Bc6 Ba7 Bb5+ Kc2 d3+ Kb3 d4 Rb8 Ba6 Rb6 Rc4 Be1 d2 Qh7 d3 Qc6 Be3 Bf1 Rcd4 Be2 Bc4+ Kb4 Bb5+ Kc5 Ba6 Rdb1 d1Q R1b2 d2 Bc4 Qb3 Rc2 d1R Rd2 Rc1 Nd1 Bb5 Rc2 Qa4 Ba5 Qb3 Rd2 Qe8 Rf1 h1Q Rf3 h2 Rh3 Qa8 Rh4 Qg1 Rh6 h1R Ra6 Ng3 Rb6 Rde4+ Kd6 Nf5+ Kd7 Qh2 Rd6 Rg1 Rd2 Ng7 Kd6 Qh4 Ke7 Nf5+ Kd7 Rc2 Bd5 Rff1 Bc3 Nd4 Ba5 Bd3 Qa4 Kf4 g5 Rc1 g6 Kg5 g7 Nf5 Qc6 Rf3 Bc4 Rg3 Bb5 Rb4 Ba6 Qhc4 Bb5 Rg4 Ba6 Qa4 Bb5 Qcb3 Ba6 Rbf4 Bc4 Rb8 g8Q+ Ng7 Qf8 Nf5 Qff7 Rf8 Qe8 Nd6 Nc2 a1B Ke7 Bad4 Na1 Nf5+
1r2B3/1R1NQ3/1p3b2/Q2bq1bb/KP2Q1n1/1rRn1B2/1r1qB2R/2bNk2q w - - 0 1 legal: proof: g4 d5 f4 h5 c4 hxg4 cxd5 a5 f5 a4 b3 a3 Bb2 axb2 f6 exf6 Bg2 f5 Bf1 f4 e4 Ke7 a4 Kf6 d4 Kg5 Kd2 Kh4 Kc3 f5 h3 Kg3 b4 Kf2 Kb3 c5 e5 g5 e6 f3 h4 g3 e7 g2 e8B c4+ Ka3 b6 a5 f4 h5 g4 d6 c3 a6 c2 a7 c1B d7 g3 h6 Nf6 h7 Na6 d5 Bb7 d6 Nc5 Nc3 b1R+ Ka2 Bd5+ Qb3 Ke1 Rh6 f2 Be2 f1Q Rh3 f3 Qc4 f2 Nd1 Rb2+ Ka3 Nd3 Ka4 Be7 Qe4 Rb8 a8B Ng4 Rh2 Bcg5 Rc1 Bef6 Rc3 Qe7 d8R Qe5 d7 Rg8 Nh3 g1B h8Q Qg2 Qh5 f1B Nf4 Be3 Ng6 Bc1 Nf8 Qh1 Rdc8 g2 d8Q g1Q Nd7 Qe3 R8c7 Qd2 Qe7 Bg2 Rb7 Bf3 Qhf7 Rh8 Qc5 Rh3 Qfe7 Ne3 Qa5 Bh5 Ra7 Ng4 Bc6 Re3 Rb7 Bg8 Qc4 Bgf7 Bcf3 Bd5 Qe4 Nf4 Rc8 Reb3 Rc3 Nd3
R3r2K/qBb2B2/p1n1Q2B/Rb1rqR2/2QQNP2/7b/1n1r2rN/rk1q4 w - - 0 1 illegal: No possible last move
2N1B1KR/7P/1qqrN2p/1kbB2qq/b1nQNQRb/q4R2/3B1n2/3r3n w - - 0 1 illegal: No proof kernel
r1R5/1b1RqQ1p/1K4r1/nb2b1RQ/1bB1P2b/nnB3q1/8/1NNrNB1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 a5 g5 c5 d3 f5 g6 c3 b6 h3 b7 c4 g7 a4 b5 c2 b6 a3 Bb2+ c3 Ke2 c1B Rh2 f3+ Kf2 Kf4 d4 c2 d5 a2 d6 Nf6 g8B Nd5 d7 Bb4 Nc3 Qe7 d8R Nc7 Qe1 Nc6 b8N Bb7 Ba3 Nb5 Rd7 Na5 Bgc4 Rg8 Rg2 h2 Na6 h1R Bb2 Rg6 Rg5 Na3 Qd1 Bd2 Nb1 c1N Bd4 Ncb3 Nc5 Bdc3 Bh8 Bf6 Qd5 Be5 Qf7 Bf6 Rg2 Bg5 Bc3 Bf6 Rg5 Be5 Ke1 f2+ Ke2 Bf6 Kd3 Be5 Be2 f1Q Nf3 Qg2 Ne1 Qg4 Bf1 Kg3 Ke3 Kh2 Ncd3 Qh4 Nc1 f4+ Kd3 f3 Ke3 f2 Kd3 Bd5 b7 Rg1 b8Q Kh1 Qbf8 Bb7 Qh6 Bg3 Qh5 Qh2 Nd2 Bh4 Rb1 a1B Ke3 Nc5 Kd4 Qg2 Rb2 Qg3 Rc2 Bb2 Bfe2 f1B Nb1 Bg2 Bf1 Bf3 Rf2 Be2 Rf6 Ba1 Rc6 Ncb3+ Kd5 Ba6 Rc8 Bb5 Bd2 Be5 Bc3 Ba6 Bb5 Bd3 Bc4 Bb7+ Rc6 Qh2 Be2 Rc8 Ng2 Bbd6 Ba6 Re1 Bf1 Rd1 Ne1 Qg3 Bb5 Ba6 Rc4 Ra8 Rc8 Nb7 Kc6 N7a5+ Kb6 Bb7 Bc4 Be2 Be6 Bb5 Bec4 Bb4+
3k1q2/3nbq1p/N1Pr1r2/NQ5K/2Q2B2/1qq2BqN/Rn2Qnb1/2bRB3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 f5 b4 a5 c4 a4 e4 d3 g4 a3 g5 h3 b6 d2 b5 a2 c5 h2 c6 d4 g6 d3 b7 Nd7 b8B Nh6 b6 Qf6 g7 Qc3 g8N Kd8 b7 Ng4 e5 Be7 e6 Nf2 Nh6 Rf8 Qa4 d1Q+ Be2 Qdb3 Ng4 d2+ Ne3 d1N Nd2 Nb2 Qc4 Rf6 Nh3 Ra7 Rg1 h1Q+ Rg2 Qhd1 Ne4 Qdd3 Bd2 Ra3 Rc1 a1B Rd1 Ra5 Rh2 Rd5 Nc5 Rd4 Be1 Rd6 Kg2 f3+ Kg3 f4+ Kh4 Qg6 Na6 Qg3+ Kh5 Nfd3 Rd2 f2 Bf3 f1Q Rd1 Nf2 Rg2 Na4 Rh2 Bb2 Rg2 Bc1 Bc7+ Ke8 b8Q Nb2 Qbb4 Nc5 Bb8 Nd7 Qcb5 Kd8 Nc4 Na4 Na5 Nb2 Be4 f3 Q4c4 Qg1 Bd5 Qg7 Be4 Qf8 Rh2 Qg3 Rg2 Rd4 Bf4 Rd6 Bd5 Nfd3 Re2 f2 Bf3 f1Q Red2 Nf2 Rc2 Na4 Ra2 Nb2 Bd5 Nb6 Nb4 Rf5+ Bg5 Nfd3 Ng1 Bf6 Be4 Qff4 Bf3 Nf2 e7+ Kc7 e8Q Be6 Qa4 Nd7 Qab5 Bd5 Nh3 Bd8 Bg4 Bg2 Qee2 Be7 Bf3 Kd8 Na6 Rf7 Bh6 Qff6 Bg5 Qe6 Bh6 Rf6 Bf4 Qef7+
1q2Q2B/Nb2q1pb/K3bbrk/R1P3nb/r3B1rQ/8/1R4QN/NnB1q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 Kd3 f5 h4 Kf7 e4 Kg6 c4 a5 b4 g3 b6 a4 b5 a3 h5+ Kh6 e5 a2 e6 g2 b7 Be7 c5 Bf6 e7 Nc6 e8N Nge7 b8Q Ne5+ Kc2 d3+ Kc3 d2 Kb4 d4 b6 f3 Kb5 f2 b7 d3 Rh2 f4 Nc7 f3 Qb3 Nd5 Qc2 Be6 Bb2 d1B Bc1+ d2 Rh3 Qe7 Na3 Nf7 Rh1 Ng5 Qe8 Ra4 Bd3 f1Q b8Q f2 Qbd8 Bf3 Rh2 Qe1 Be4 d1B Qb2 Rh7 Nc2 Nc3+ Kb6 f1B Nb5 Rh8 Na7 Bd3 Qd4 Nb1 Qf2 Bfg4 Nf3 g1R Qh4 Bh3 Rf2 Rg4 Nh2 Ba6 Rd2 Bb7 Rg2 Rf4 Rf2 Bhf5 Rd2 Rg4 Kb5 Kh7 h6 Qg3 Rg2 Qb8 Rd2 Rf8 Re2 Rf7 Rf2 Kg6 h7 Bf3 h8B Bd1 Qg3 Kh6 Qd4 Bh7 Qg2 Rf4 Rd2 Bh5 Qdf2 Rg4 Qh4 Be5 Re2 Rf6 Rf2 Rg6 Kb6 Rd4 Rd2 Bf6 Kb5 Bbd5+ Ka6 Nc3 Ba3 Rb4 Rb1 Rd4 Rb5 a1Q Ra5 Qe1 Na1 Nb1 Bc1 Ra4 Rb2 Bb7+
k1rb1r2/4P1pN/r1R1rB1R/5n1q/3bNQ2/Q3q1n1/5BB1/Nb1KQqr1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 a5 c4 d5 b4 Kd7 h4 Kc7 b6+ Kb7 e5 f5 c5 a4 b5 a3 e6 d3 h5 d4 h6 f3 h7 f4 Be3 d2+ Kf2 a2 Bc4 d3 Qe1 d1R Nh3 d2 Na3 Nd7 Bf1 Qg5 Bg2 Ra6 c6+ Ka8 c7 Ne7 Rc1 a1B Nc2 Bd4 Na1 Nf6 Rc6 g3+ Kf1 f2 Ke2 f1R Bf2 Bb7 c8N Ne4 Nd6 Nf5 Rh2 Rg8 h8Q Be7 Qh4 Bd8 e7 Qh6 Ng5 Rc1 Rh1 Rf8 Qh3 d1R Rh2 Rg1 Nh7 Rd3 Rh1 Rcc3 Rh2 Re3+ Kd1 f3 Rh1 Bc8 Rh2 Qh5 b7+ Ka7 b8B+ Ka8 b6 Rc5 Bf1 g2 Ba7 Neg3 Ne4 Rc2 Bb8 Be6 Be5 Ba2 Bf6 Bb1 b7+ Ka7 Nc5 Re6 Ne4 Rc4 Rb6 Rc8 Rd6 Rh1 Rc6 g1Q Bg2 Qf7 Qh6 Qh5 Qc1 Kb8 Be3 Qf2 Qa3 Rg1 Rh1 Qf7 Rh6 Qh5 Beg5 Qe3 Bh4 Ne2 Bg3+ Ka7 Bgh4 f2 Bg3 f1Q Bf2 Neg3+ Bf3 Be5 Nd6 Ba5 Rc1 Qh1 Bg2 Bd4 Rc3 Bd8 Rc4 Ra5 b8Q+ Ka6 Ne4 Qh5+ Bf3 Ra4 Qf4 Kb7 Rc1 Raa6 Rc6 Qf7 Bh1 Ka8 Bg2 Qh5+
qN1krb1b/n2pR1QN/qn3Pq1/1b3rQ1/4rR2/rK3Q2/4r3/B2BBR2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 e5 c4 h5 Kc2 h3 g4 d3+ Kb3 d2 g5 h2 g6 e3 g7 e2 f5 e1Q b6 e4 b7 h4 c5 h3 c6 e3 c7 e2 Na3 Be7 Nc2 Nc6 b8Q Ba6 c8R Bb5 Qe5 Na7 Nd4 Nf6 Nc6 Nd5 Nf3 Nb6 Ra4 Qg3 Rf4 e1R Be2 Qg6 Rf1 h1R Nb8 h2 Ng5 Rg8 Qf6 Bf8 Nh7 Rh8 Rcc4 Qc8 g8Q Qa6 Qfg7 Kd8 Rce4 Rg1 Bf3 h1Q Re7 Rg2 Bg4 Rh2 Qf3 d1R Bd2 Re4 Be1 Rd5 Bh5 Qg4 Qg5 Rhe2 Q8g7 a4+ Kc3 a3 b4 a2 Kb3 Bc6 b5 Qgg2 Bg4 Qh6 Bh5 a1B Bg4 Qg6 Bh5 Nc4 b6 Bb5 b7 Be5 Q7h6 Beg7 f6 Rf5 Bg4 Rg8 Bh5 Bh8 Qg7 Qh1 Qe3 Qe6 Kc3 Ree5 Re4 Nc6 Qg2 Rb2 Qgh6 Bfg7 Qeg5 Re8 Ref4 Bf8 Bd1 Rbe2 Kb3 Ra6 Qe4 Na7 Qg7 Ra5 Qeg2 Qa6 Q2g3 Qe4 Qf3 Nb6 Nc6+ Kc7 b8B+ Kc8 Bc7 Raa2 Nb8 Qa8 Bd6 R5e4 Be5 Kd8 Ba1 Ra3#
BB2rn1n/B1P4b/q3R1pn/b3Nb1N/1Q1qR3/3q2QN/1r2b2R/K1b2k2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 h4 Kd6 b4 Kd5 c4+ Ke4 Kc2 d5 Kb2 f5 b6 a5 h5 f3 b5 f2 b7 a4 b6 d3 h6 d4 e3 f4 c5 a3+ Ka2 f3 h7 d2 c6 g3 c7 d3 Bg2 f1B Qe1 d1Q Qb4+ Qd4 Qe1 d2 Nh3 Kd3 e4 f2 e5 Be2 e6 f1Q e7 Nh6 e8Q Bb4 Qg6+ Bf5 Qe8 Nd7 b8N Nf8 b7 Ba5 Nd7 Rb8 Bc6 g2 Qg6 g1N Nf6 Nf3 Rh2 Ne5 Nh5 Nef7 Qd6 Qa4 Qb4 d1B Be3 Bc2 Nd2 Rg8 Nf3 Nh8 Qg3 Qb5 Qg4 Qa6 Re1 Re8 b8B Bb1+ Kb3 a2 Ba8 a1B Qg3 Bb2 Bg1 Bc2+ Ka2 Bc1 Be3 Qd7 Bea7 Qd4 Qb2 Ke3 Ne5+ Qf3 Ka1 Kd2 Rf1 Qfd3 Rf4 Kd1 Re4 Bb1 Rf2 Ke1 Rh2+ Kf1 Qc3 Re6 Qb2 Rb6 Qc3 Rb2 Qc5 N8f7 h8R Bh7 Qb4 g6 Ng4 Qdb5 Re6 Bf5 Ne5 Qbd3 Nc6 Nd7 Ne5 Re8 Rf8 Nh8 Rf7 Nf8 Rd7 Q4c4 Rd4 Qcc3 Re4 Qcd4
1n3n2/2pN2P1/3KNrQ1/2Q1B2n/br1R4/3R1rnB/n1bN1bR1/3Bkqq1 w - - 0 1 illegal: Other
k1K5/1nq3qN/b1bQ1n2/1RN3r1/2B1Q3/1n1R1N1P/rQ1q1p1B/1r2b1qB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 b4 a5 e4 f5 c4 d5 e5 Kd7 e6+ Kc7 c5 Kb7 h3 a4 e7 g3+ Kf3 g2 e8Q a3 b6 d3 b5 d4 Qee2 g4+ Kf2 d2 Qe6 d3 Nf3 a2 Ng5 f3 Ke3 g1Q+ Kf4 f2 Ke5 f4 Nh7 Na6 c6+ Kb8 b7 f3 Kf5 g3 c7+ Ka7 b8N g2 Nd7 Nf6 Qe8 Bb7 Ke6 Rg8 c8B Qc7 Nc5 Bc6 Bb7 Rg5 Qb3 d1R Qb2 d2 Bc4 f1B Rh2 Qd8 b6+ Kb8 Qg6 Qc7 Qe4 f2 Rh1 Ra7 Ba8 Re1 b7 d1Q Bf4 Qd2 Bh2 Be2 Nd3 Bb4 Nc5 Qd8 Nd2 Rb1 Nf3 Be1 Bg3 Qd2 Bh2 Rc1 Rb1 a1N Qbc2 Bd3 Rb5 Nb3 Qb2 Rb1 Ne5 Qg7 Kd6 Qf1 Nf3 g1Q Ke6+ Qg3 Rg1 Qgf4 Rg4 Qg1 Rg3 Qg6 Ke7 Qf7+ Kd8 Qg7 Ne5 Bf1+ Rd3 Qfg3 Ne6 Nac5 Nf3 Ncd7 Nc5 Ra2 Ne6 Ka7 Kc8 Ndc5 b8Q+ Ka6 Qef4 Nb7 Qbd6 Ka7 Nc5 Qe7 Qde5 Qf7 Nd4 Rg6 Qd6 Qg5 Bd5 Nd8 Rb4 Ba4 Rc3 Ba6+ Bab7 Qh6 Bc4 Qhg7 Rd3 Rg5 Rb6 Be8 Rb5 Bd7+ Kc7 Qe7 Bh1 Nb7 Nf3 Ka8 Qe4 Bc6+ Kc8 Qc7+
2RN2nR/1N2r3/7K/2b5/bb1brQqB/1q2pn1R/k5qP/1rBBN1nQ w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Ke6 b4 g5 f4 d5 c5 a5 b6 e3 b5 d3+ Ke1 e2 Kf2 e1R Kg3 d2 b7 d4 f5+ Kd5 f6 e5 f7 d3 b6 Kc4 c6 a4 c7 e4 Nh3 a3 Qa4+ Bb4 f8Q d1Q Nf4 a2 Ne6 Rh4 Be3 Nc6 b8R Qb3 b7 Ra7 Bd4 Ne5 Bc5 Bd7 c8N Nf3 Be3 Nf6 Bc1 Be8 Qa5 Ba4 Be2 Qd5 Bd1 d2 Na3+ Kc3 Rb1 a1B Nc2 Kc4 Qf7 Bd4 Nd6+ Kc3 Rf8 Bc5 b8B Re7 Nb7 Rf1 Be2 d1Q Ned8 Q5d2 Ne1 Qdd5 Kg2 g3 Qa8 g4 Rh8 Qg5 Ra1 Qdd5 Bd1 Qg6 Bg5 Kb2 Bbf4 Qgf5 Rc1 Ka2 Rc3 Nh5 Na5 Qd4 Be2 Ne5 Nc2 Rb1 Bb5 Qg6 Be2 Bd6 Rc1 Qdd5 Rc8 Bdc5 Bd1 Qdc4 Qf5 Nf6 Ne1 Qe6 Rc3 Qgg8 Kf1 g2+ Ke2 g1B Bc1 g3 Re3 g2 Rh3 Rf4 Bh4 Bgd4 Qc6 e3 Nab7 Rg4 Qf1 Qg7 Qc7 Re4 Qh1 Nf7 Kf3 Ng5+ Kg3 g1N Qf4 N5f3+ Qg4 Re5 Kf4 Qeg8 Qf5 Qg2 Qg4 Re4+ Kf5 Qge6+ Kg6 Qf5+ Kh6 Qf4+ Qg5 Qfg4 Qf4 Ng8+
q5QK/1N2n3/1RbB1bqr/1NqB4/n4R2/Q1P1r1np/1rN1k2b/R3B1r1 w - - 0 1 illegal: No possible last move
B6q/1Q2b3/r2qQ1n1/1nB3q1/1RBpb1PN/7k/rr2bnR1/QKN2qR1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 e4 Kg5 c4 h5 Kc2 f5 g4 a5 b6 d5 b5 a4 b7 a3 b6 a2 c5 h3 e5 Kh4 e6 f3 e7 d3+ Kb2 f2 e8Q d2 c6 f4 c7 h2 Bb5 f1B Nc3 f3 Ba6 f2 Qde1 d1Q Qd7 Nc6 b8R Nge7 b7 Nd4 Qc6 Ng6 Qd6 Be7 Qd7 Nb5 Nf3+ Kh3 Ne4 h4 Qe6 Be2 Ng3 f1Q Rg1 h1N Be3 Nf2 Bc5 d4 Qa5 Qd6 Rg2 Qde1 Rc1 a1R Qaa2 Bd7 c8B Bc6 Qb1 Ra4 Qa1 Qa5 Kb1 Ra2 Bd7 Bd5 Bc6 Rc8 Rd1 Qd2 Re1 Qg5 Rc1 Nc7 Bc4 Nb5 Rd1 R8a6 Re1 Bd1 Ne2 Rc7 Nc1 Be2 Rf8 Rc8 b8Q Rc7 Ba8 Be4+ Bd3 Rc8 Qb7 Rcc6 Rb8 Rc7 Ba3 Rcc2 Bc4 Na7 Nb3 Qg1 Rh2+ Kg3 Qc7 h3 Nc1 Qh1 Rb3 Nb5 Bc5 Qg2 Rb4 Qg1 Rh1 h2 Qb7 Qg2 Rhf1 h1Q Rd1 Qhh5 Nh4 Qh8 Rh1 Qg1 Rh2 Qe1 Rg2+ Kh3 Qc6 Qed2 Rf1 Qe1 Rfg1 Qf1 Qb7 Rcb2#
b4n2/2k3NN/3b3q/1Qb2r1q/R1p1q1BP/r1Q1rQR1/K1Bn1nr1/2R3B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 d4 c3 e4 Kd7 b4 c5 h4 g5 e5 a5 e6+ Kc7 d5 f5 e7 a4 e8B f3 Qc2 a3 Kd1 g3 Bh3 g4 Ne2 f2 Ra2 f1N Be3 c4 Kc1 f4 Qd1 f3 Rd2 g2 Nd4 g1R Rd3 c2 Bg6 a2 Kb2 g3 Nf5 f2 Nd2 g2 Nf3 Qe7 Ng7 Ra3 Ng5 Nh6 Nh7 Ng4 Ba7 a1R Rg3 Nd7 Bd4 Bb7 b6+ Kd8 d6 Ba8 b5 Qe5 b7 Qh5 Qf3 Re1 b6 Rb3+ Ka2 c1Q Qc6 Qch6 Qf3 Re8 Qc3 Nd2 Be4 f1Q Be3 Qf3 Bc2 Nb1 Bd4 Qc6 Bf2 Re3 b8R+ Qc8 Rb7 Qc6 Ra7 Qe4 b7 Be7 Ra4 Rf8 Qe1 Rf7 Qc3 Nf8 b8Q+ Kd7 Qbb4 Rf5 Qb5+ Kd8 d7 Kc7 Qe1 Bb4 Qd1 Nd2 Qf3 Ne5 Bg4 Nd3 Qa6 Ba3 Qf6 Bd6 Qc3 Rge1 Rg1 R3e2 Rh1 g1B Ba7 Rg2 d8Q+ Kb7 Qe8 Kc7 Bd4 Be3 Qb5 Bg1 Bf6 Bgc5 Bd4 Ree2 Rd1 Re1 Bg1 Re3 Rf1 Nf2 Rc1 Ra3+
1B2q3/r5q1/QK1b2kn/3n2n1/1PR4B/1q4bp/r1Nq1Rb1/1BrN1NQR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 a5 e4 h3 g5 h2 c5 h4 b6 h3 b7 a4 e5 a3 e6+ Kg6 c6 f3 e7 f2 e8R a2 c7 f4 Qe1 f3 Qe5 Ra7 Qe7 Nd7 b8B Bb7 c8N Nh6 Be3 Nf6 Nd2 Ne4 Qc7 Bd6 Rb1 a1B Rf8 Qe8 Nb6 Rh7 Rf7 Ra2 Qc8 Rg7 Be2 f1N Nbc4 f2 Ngf3 Bc6 Rf8 Rga7 Nb2 Bg3 Bef4 Ne3 Rbc1 f1R Rc4 Rc1 Nd1 Bb2 Qa6 Bc3 Rg1 h1Q Nf1 Qg2 Rh1 Bce1 Bfc7 Bd6 Bd8 Beg3 Ne1 Ba8 Bg4 Bc6 Nc2 Qg1 Ke2 d3+ Kf3 d4 Bf5+ Kh5 g6 d2 g7 d3 g8Q Nd5 Bf6 Qd4 Bh4 Qg7 Bg4+ Kg6 Rf7 Nb6 Ke3 Ng5+ Be6 Bg2 Rf5 Nd7 Rf2 Nf6 Kd4 Qe7 Nc3 d1Q Bg4 Qf3 Nd1 d2 Bc8 Qe8 Bf5+ Kh5 Be4 Qb3 Bh7 Bde5+ Kc5 Nd5 Nde3 d1Q Bd3 Qd2 Nd1 Nf4 Kb6 Bd6 Na3 Be4 Bb1 Kg6 Nc2 Bc6 Qd5 Ba8 Qg2 Bd5 Qh2 Bg2 Qg1 Nd5#
q1q2nK1/RbBr1bbN/7r/nBB2N1p/R2n1nQ1/3R1NP1/Q2q4/r2k4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 Kg4 b4 h5 c4 a5 e4+ f3 c5 f5 g3 h3 c6 a4 b6 f4 b7 h2 c7 d3 e5 a3 e6 d2 e7 a2 e8Q Nc6 b8B Rh6 b5 Nge7+ Ke4 d5+ Kd3 d4 Ke4 d3 b6 Na5 Ke5 Bb7 c8N Ng6+ Ke6 Bg7 Kf7 Nf8 Qde2 d1R Be3 d2 Qc4 f2 Ne7 Qc8 Bd3 f1N Nh3 Kf3 Bc5 Ne3 Qea4 Nd5 Kg8 Ra7 Re1 h1Q Nf5 Rc1 Qcc2 d1Q Bc7 Qd2 Re4 Rf1 Ba6 Qhg2 Rc4 Ke2 Ng5 f3 Nh7 f2 Bb5 Nf4 Rd4+ Ke1 Rd3 Rg1 Qd4 f1B Qcc4 Kd1 Qe6 Bd5 b7 Qh1 b8R Bb7 Ra8 Be2 Ra3 Bc4 Rd3 Re1 Qf7 Re7 Qe6 Rd7 Qdd5 Ra6 Ra7 Qe4 Qg6 Qee8 Qdf7 Qa8 Qfe6 Qec8 Qg4+ Kc2 Be3 Nb3 Qh4 Qe2 Bc5 Nd4 Rf3 Kd1 Qg4 Qb2 Nd2+ Qc1 Rb1 a1N Rb4 Nab3 Qf7 Ra1 Rba4 Na5 Rd3+ Nfe2 Nf3+ Qd2 Qd5 Nf4 Qe6 Bcd5 Qf7 Bdc6 Qa2 Be4 Nd6 Bg6 Nf5 Bf7+
2q1Q3/2BB3R/1N1qrn1r/4Qb1p/1QqqPn2/B3brkN/Rn6/1N2b2K w - - 0 1 legal: proof: f4 d5 h4 a5 b4 e5 bxa5 exf4 c4 dxc4 Qb3 g5 Qd1 gxh4 Kf2 Kd7 g4 Ke6 Kg2 Ke5 a4 c5 e4 f5 a6 h5 a7 b5 d3 h3+ Kh2 b4 a5 b3 g5 f3 a6 f2 g6 c3 g7 f4 Be2 f1Q Qc2 f3 Na3 b2 Qd2 b1Q Qg5+ Bf5 Qg2 c4 Be3 c2 Bg5 c1Q Bh6 c3 Ra2 f2 Bg4 c2 Bd2 Qd6 Bb4 Kf4 d4 Nd7 d5 Qa1 Nb1 Ngf6 g8Q Ne5 Qe6 Nc4 Ba3 Re8 a8N Rh6 a7 Nb2 Nb6 Qc4 a8Q f1R Qe7 Rf3 Qd2+ Re3 Qg7 Re6 Qb4 Rf3 Qe8 Qc8 Qge7 Qf1 Qc7 c1B Qg7 Qfc4 Qh8 Qdd7 d6 Be3 Qg7 Qe7 d7 Qd6 d8B Be7 Nc3 Qad1 Bc7 Qdd4 Qgh8 Nd5 Nb1 Bh4 Qg7 Be1 Qgh8 Kg5+ Qe5 Kh4 Ne2 Nf6 Rg1 B3f2 Nf4 Be3 Kh1 h2 Rf1 Kg3 Nh3+ Kh4 Kg2 h1N Rf2 Ng3 Rd2 Ne2 Kh1 Nf4 Rd3 Re7 Rd1 Bh7 Bd7 Re6 Rd2 Bg6 Rg2 Bh7 Rg7 Bf5 Rh7 Kg3
4q3/b2n1N2/BQ1KQ3/1rnbp3/rB1qN2Q/qb1R2r1/k2P1NR1/n1R2q2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 g4 a5 b4 c5 f3 h5 g5 h3 b6 h2 g6 a4 b5 a3 b7 c3 b6 h4 g7 c2 Bb2 c1Q Bf6 a2 Nh3 e3 Bb2 e2 Nc3+ Kc4 Ke5 Rh5+ Ng5 h3 f4 Be6 f5 Nf6 g8R Na6 Rg1 h1R b8N h2 Rg3 Rg1 b7 h1B Nh3 Bhd5 Rd3 e1Q+ Qe2 Kb3 Nf2 c4 Nd7 Rg3 Ba3 Nc5 Bb4 Qa3 b8Q Ra4 Nce4+ c3 Rc1 a1N Qb6 Ka2 Qg4 c2 Qh4 Bf7 Be2 e6 Rg4 Bh6 Kd6 Be3 Bf1 Qh8 Ne5 Nfd7 f6 Qe8 Be2 Qg1 Bf1 Bg8 f7 Bd4 f8Q Rf5 Rd1 c1Q Qf7 Qcc3 Be2 Qf1 Rc1 Be3 Qfe7 Qd4 Nf7 Bb3+ Kc6 Rd5 Rg7 e5 Qe6 Nb7 Rg4 Rb5 Rg6 Nbc5 Rg4 Rf3 Rg2 Rg3 Kc7 Bd5 Kd6 Bb3+ Qd5 Qc3 Nh6 Qcb2 Rdc3 Rba5 Qbc6 Ne6 Ba6 Rb5 Rd3 Ba7 Qb6 Nec5 Qf7 Qc3 Qff6 Bge6 Nf7 Bed5 Qe6 Qd4
2Qrn2n/2bK1B1Q/q4N1r/4pnB1/1Rq2R1B/1b1R3P/N1b1k1Nq/4qr2 w - - 0 1 illegal: No possible last move
r1n3QN/B1q4q/KQ1bb1pr/4nQR1/1r1PBR2/2k2Bn1/3q2b1/n4NN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 e4 Ke7 Ke2 Kd6 h4 Kc5 b4+ Kd4 d3 f5 b6 c5 e5 a5 b7 g3 b5 f3+ Kd2 g6 h5 g2 b6 f2 e6 f4 h6 a4 e7 a3 e8B a2 h7 f3 Rh6 c3+ Kc2 c4 Bg5 Nc6 b8Q Be6 b7 Bd6 Nd2 Qe7 Be2 f1N Rh5 f2 Qb1 Ne5 Bf3 Ng3 Bec6 f1B Bce4 Qf7 Qc8 Ne7 Qg8 Nc8 b8Q Qe7 Bf4 Qh4 Rg5 Qh3 Kc1 c2 Q8b6+ Kc3 Be3 Qh1 Q1b5 Qh4 Rb1 a1N Rb4 Qh6 Qd7 Qh1 Qdf7 Qh6 Qf5 Qg7 Nh3 g1R Bf2 Rh1 Ng1 Bg2 Nf1 Rh6 Be3 Ra3 Bf2 Rb3 Ra4 Rb4 Bc5 Kb3 Kd2 Qe7 Ke3 c1Q+ Kd4 Qg7 Bb7 Qd2 Bbe4 Bd7 Kd5 c3 Bd4 c2 Bf2 Bc7 Kc5+ Kc3 Be3 Be6 Bf2 Rd4 Kb5 c1Q Ka6 Bd6 Ba8 Nf7 Qe8 Qf4 Rh5 Kc2 Qb7 Na7 Qf8 Rg8 h8N Qfd2 Rg5 Qh7 Qg7 Rb8 Qg8 Nc8 Rb4 Rdh4 Ba7 Ne5 Qb6 Rc4 Bac6 Ra8 Bcd5 Rc6 Rbg4 Rc4 Bde4 Rb4 d4+ Kb2 Rh4 Qcc7 Rf4 Kc3
4kb1b/1nq3QN/2qPn3/BB1B1K2/1Rb1r1r1/b5Qr/3NRp1n/1QR3q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 h5 g4 a5 d4 h3 e4 c3 b6 c2 d5 h4 b5 h2 b7 h3 e5 a4 e6 a3 g5 c4 e7 c3 d6 a2 b6 Ra4 g6 Nc6 b8Q Qc7 b7 Nd8 g7 Nf6 g8B Be6 Bg2 Nd5 Na3 Re4 Qe2 Rh4 Qe3 Rg4 Bd2 c1B Nc4 c2 Bf1 Ba3 Rd1 a1B Ba5 c1Q Re1 Bh8 Nd2 Q1c6 Bb5 Bf7 Re2 Be6 Kf2 f3 Qba7 f4 b8R Bf7 Qd3 Be6 Qb1 Bf7 Qd4 Be6 Rb6 Nb7 Qg7 Bf7 Ba6 Be6 Rb4 Bf7 Bb5 Be6 Kf1 f2 Ngf3 Bf7 Rg1 h1Q Ng5 h2 Nh7 Be6 Re3 Qg2+ Ke2 f1N+ Kd3 h1R Re2 Nh2 Rc1 f3 Bf7+ Kd7 Bg8 f2 Bf7 Qg1 Bg8 Qd8 Bf7 Nc7 e8Q+ Kc8 Bg8 Bf7 Qee5 Kd7 Qf4 Ke8 Qg3 Bb3 Bd5 Ne6 Qd4 Qc7 Qg7 Rh4 Rcc4 Reg4 Rc1 Bc4+ Ke3 Nf4 Ke4 Ne6+ Ke5 Re4+ Kf5 Rhg4 Ree1 Nf1 Re3 Rh3 Re2 Nh2
N1b1qNr1/1r4Bp/n2nR3/q1BK1rqk/6RN/nQR5/B2P1b1n/4b2Q w - - 0 1 illegal: No possible last move, all moves rejected
1r2b3/n2Nb2p/3q2n1/6q1/2BB1Rnk/bQPNbR2/1RQ1Q1q1/K1rB3r w - - 0 1 illegal: No possible last move, all moves rejected
K1Q3n1/B3QNPr/2b1nN2/1R1R4/qQrp2Br/2q3q1/1nB2q2/1Rb1b1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 d5+ Ke5 h5 c4 f5 e4 a5 b6 d3 b7 h3 b3 h2 g5 d2 g6 f3 g7 a4 Ra2 f2 Bd3 f1Q Ne2 a3 Qe1 d1N Ng1 f4 Nc3 h4 Bb1 h3 Nf3 Qg2 Bc2 Rh4 Ng5 f3 Nf7 Na6 b8Q Bd7 Qc8+ Bc6 Ra1 a2 Rb1 a1B b4+ Kb6 b5 Kc5 b6 f2 b7 f1Q b8R Nb2 Ke6 Kd4 c5 Qc7 e5 Qff2 Ne4 Qgg3 Rb5 Rb8 Rf1 h1Q Nf6 h2 Bh6 Qe4 Qb4+ Nc4 Bg5 Bc3 Rfd1+ Bd2 Bh6 h1R Bf4 Qc3 Bh2 Ke3 Bg1 Be1 Rd4 Be8 c6 Nb2 Rd2 Qf4 Rdd1 Qa7 c7 Qg3 Rd4 Bc5 Rd2 Bd4 Kd6 Nc5 Rdd1 Qa4 Rd3+ Kf4 e6 Bc6 e7 Ne6 e8Q Rh7 Qe7 R1h4 Qcd7 Rb7 c8B Rc7 Qdd8 Qg6 Rdd1 Kg3 Bd7 Kg2 Qc8 Be3 Rd2 Nf8 Bg4 Ne6 Rd3 Bc1 Rd1 Qff5 Ba7 Qf2 Rd3 Kg1 Rd4 Bb7 Rd1 Rc4 Kd7 Nc5+ Kc7 Bc6 Kb8 Ne6 Rd3 Be8 Ka8 d4 Re3 Qgd3 Ree5 Qdg3 Red5 Bc6+
N1K2B2/1RNn2pn/1r5b/3N1QR1/B3qr1P/3bQq2/5qB1/krbbn1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 b4 Ke5 h4 a5 c4 f5 c5 d5 c6 d3 c7 Kd4 b6 f3 Kg3 f2 Kf4 a4 e5 d2 e6 a3 e7 a2 e8Q g3 b5 g2 b7 Ra6 b6 Qe7 Qf3 d1B Qb5 Nd7 b8N Ngf6 b7 Rb6 Na3 Nh7 Nh3 g1B Qg2 Kc3 Nc4 d4 Na6 d3 b8Q d2 Rb1 a1N Qa7 Nc2 Ba3 Ne1 Qc5 Bb7 c8B Be4 Nc7 Bd3 Bb7 Qe2 Bc6 Qe8 Ba4 Qe4+ Kg3 Be7 Nf4 Rhb8 Qf3 R8b7 Bg2 f1R Qce3 Bg5 Bf8 Bh6 Rb3+ Kc2 Nfd5 f4+ Kg4 Bh2 Rb5+ Kc1 Rc5 Kb1 Rb5+ Ka1 Rg1 Bb3 Rb4 d1Q Rb5 Qd2 Rb4 Qf2 Qh3 Rb5 Ncb6 Bd1+ Qhf3 Rb8 Nba8 R5b6 Rb3 Rd6 Rb7 Rb6 Qfe2 f3+ Qf4 Qe5 Qf5 B2f4 Qe3 Qe7 Qfe4 Rb1 Kf5 Qb4 Ke6 Qd4 Qe2 Bc1 Qf5 Qc4 Qee3 Qg4 Rb3 Rb6+ Ke7 Qe4+ Kd8 Qa2 Kc8 f2 Bh3 Qe2 Rg5 Q2f3 Rb4 Rg1 Rb5 Rg4 Bg2 f1Q Rb2 Rf4 Qg1 Rc6 Rb7 Q1f2 Qe3 Rcb6
Q1Q2Q1b/3PBB2/1k2bqRr/1q3p1q/R2r2br/3N1B1n/5K1n/1r2Nn1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 Kc7 d4 a5 e5 f5 e6 h5 e7 h3 e8N+ Kb6 d5 a4 g5 c3 d6 a3 g6 h4 g7 f3 Bh6 h2 Bc4 c2 Kf2 c1Q Qe1 a2 Qe4 h3 Nf6 Qf1+ Ke3 f2 Qe7 Nd7 Nd2 Ne5 Ne2 Qe8 Nf3 Be6 d7 Ra4 Nf4 Qh5 Bg5 Nd3 Bd5 c4 Rg1 h1R Ng4 c3 Ne1 c2 Bf3 Nf6 g8B c1R Bf7 Bg7 Qf8 h2 Rg2 Rb1 Rg3 Nc5 Nfd3 Nce4 Rg2 Rh6 Rg1 Kb7 b6 Bh8 b5 Rd4 Bh4 Ne8 Be7 Nf6 Nb4 Qc4 Nbd3 f1N+ Ke2 Qd5 Ngf2 Ng5 Rg2 Nh3 Rg6 Rg1 Nh1 Rgg4 Qg8 Rh4 Qg7 Ka8 b7+ Ka7 Qf8 Kb6 b8Q+ Qb7 Qbc8 Ng4 Ng3 h1B Qa8 Bg2 Nh1 Ngh2 Qfc8 Nf4+ Kf2 Bh3 Qf8 Bg4 Qac8 Ka5 b6 Qa6 b7 Qb5 b8Q Nh3+ Ke2 Rd1 Qa8+ Kb6 Rb1 a1Q Rb4 Rb1 Ra4 Rd6 Qce8 Qf6 Qec8 Nf4+ Kf2 Rd4 Kg1 Nh3+ Kg2 Nf4+ Kf2 Nh3+
1KR3b1/RB1k1r2/Q1nb3b/p1b1n1Q1/qP1N1b1N/R2br2r/8/2NQ2Bn w - - 0 1 illegal: No possible last move
1q3k1b/Q1pb2b1/Q1Nn2B1/2b3R1/2Q1bBPB/R1bK3q/1b2r1r1/nN2R3 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 h5 d4 a5 b4 e5 f4 h3 g4 a4 f5 c3 b6 c2 d5 e3 d6 e4 b5 h4 f6 a3 b7 h2 b6 h3 Qe1 a2 Na3 Ne7 Qb4 Na6 b8Q Bd7 b7 Nc5 Qb2 Nc8 Nc4 Bg7 f7+ Kf8 Qb6 Nb3 Ba3 c1B Nf3 Bcb2 Re1 a1B Q8a7 Qe8 Rg1 h1B b8Q h2 Qba6 Rh5 Bg2 Re5 Qbb5 Qd8 Ncd2 Qe8 Kd1 e2+ Kc2 e3 Nd4 Re7 Bf1 Bf3 Nb1 h1Q Nc6 Qh3 Kd3 Re6 Rg3 Re4 Rd1 e1B Qc4 Bec3 Re1 e2 Bc5 Bb4 Be3 Bc5 Bf4 Bh8 Bg2 Bbg7 Bh1 Bab2 Bg2 Na1 Bh1 Be6 d7 Nd6 d8B Bd7 Bdg5 Rb8 Bh4 Rb4 Bg2 Qb8 Bh1 Ra4 Bg2 Ra2 Bf1 Re7 Bg2 Bd5 Be4 Re8 Bg6 Bf3 Rh1 e1B Rhg1 Bec3 Re1 Bh1 Rf3 Re2 Re3 Bf3 Re5 Bf6 Rg5 Kg7 f8R Bfe5 Rf6 Bed4 Re6 Kf8 Re7 Bdg7 Re3 Rg2 Qe6 Bc1 Qd5 Rae2 Qdc4 B1b2 Ree5 Bca3 Ra5 Bc5 Ra3 Be4#
1N4BB/1b3r2/2nb1b1k/r1b2r2/n1Rq2Q1/2Q1rp1N/1P1QRr2/NKb2R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 e4 c5 d4 g5 Kd2 a5 Kc2 f5 h4 Kf7 e5 Kg7 h5 c3 e6 a4 b6 g3 b7 g2 d5 a3 d6 f3 d7 a2 e7 c4 e8R f2 Na3 f4 Qe1 g4 Rh3 g3 Re2 f3 Qd1 Bd6 Qd4+ Nf6 Re8 Rf8 Re3 Nc6 b8N Kh6 Qd3 Ra5 Rb1 a1R Qe2 Bb7 Rh2 Nd5 Rh4 Nb6 Bd2 Na4 Nh3 g1B Rf4 Qb6 d8Q g2 Qc8 Rf7 Qg4 Qd4 Rd1 Ra2 Kb1 Raf5 Nc2 Bh2 Rfe4 g1B Na1 Bhe5 Qe1 Bf6 Re2+ Kh7 h6 c2+ Kc1 Ra3 Bc3 Rb3 Rf4 Rbb5 Qd2 Ra5 Ng5+ Kg6 h7 Kh6 Bh3 f1R h8Q+ Kg6 Qc8 Rf2 Rf1 Kh6 Qg3 Rfb5 Be6 Re5 Qg4 Re3 Nh3 Rf5 Qd3 Ra5 Kd2 c1B+ Kc2 Rf5 Qd2 Ra5 Kb1 Rf5 Ba5 c3 Bc7 Bc5 Bd5 Bh2 Be5 c2+ Ka2 Bd8 Bh8 Bf6 Re4 Bhd6 Qc7 Rd7 Bg8 Rg7 Qca5 Rf7 Qdc3 Bd2 Qab4 c1R Rf4 Rc2 Kb1 Bc1 Qd2 Rc4 Qbc3 Rb4 Re4 Rb5 Rf4 Ra5 Re4 Qd5 Rc4 Qd4
6Q1/3Nr1N1/nQ5B/R2Q1b2/P1R1Nn1b/b1b1q2B/1np1B1n1/rk2nb1K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 d4 g5 e4 b5 h4 c5 h5 f5 a3 g3 h6 b3 h7 b2 Qh5 f3+ Kh3 f4+ Qg4 g2 Kh2 c4 Ne2 g1B+ Kh3 f2 Kg2 c3 Bd2 f3+ Kg3 c2 Bh3 f1B Qh4 f2 Nf4 g4 Bc1 b4 Nd3 b3 Nf4 Ne7 Ne6 Na6 Ng7 Qb6 Qg5 Ng6 Qh4 Nf4 Qh5 Bf5 Nc3 b1N Qe8 Be7 Qg8 b2 Rh2 Nd2 e5+ Kd7 d6 Kc6 d5+ Kc5 e6 Kc4 d7 Kb3 d8N b1N d6 Nf3 d7 Ne1 Nc6 Nd2 d8Q Nc4 Nb8 Nb2 Ne4 Bb4 Qg5 Bc3 e7+ Qe6 Qd8 Re8 h8Q Qb6 Nd7 Qe3+ Kh4 g3 Qg8+ Be6 Qc5 g2 Rh1 Bh2 Qc6 g1B Qdb6+ Bb5 Qcc5 f1N Qf5 Ra7 Kg4 Rea8 e8B Bg3 Bh5 Bh4 Rh2 Rc7 Rd2 Bgf2 Rd4 Be7 Rc4 Bfh4 Ne5 Bc8 Nd7 Raa7 Qfd5 Beb4 Rb1 Ka2 Bd2 Rcb7 a4 Ba3 Rd1 Rb8 Bc1 Kb1 Rdd4 Rab7 Rc5 Bd3 Ra5 Ra7 Qbb5 Rb6 Rc4 Rh6 Qb6 Re6 Ndf6 Rae7 Nd7 Rd6 Kf5 Rg6 Be2 Rg1 Bd2 Nfg2 Kg4 Ng3 Bc1 Nh5 Bd2 Qf2 Bg5 Nhf4 Bh6 Qc5 Bd1 Bf1 Be2 Bhf6 Kg3 Bh4+ Kh2 Qe3 Nf8 Bg4 Nd7 Bf5 Bf3 Kc1 Qd3 Be2 Qdd6 Ned3 Qdd5 Rd1 Rc7 Bf1 Kh1 Nde1 Be2 Kb1 Qbd4 Ka1 Rc4 Ka2 Qf6 Ra1 Qb6 Kb1
RNrrBq2/2Qb1n2/Qb2Q2b/b7/1B2nr1K/2p1R3/1bN1P2n/1B2rkN1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Ke7 Kg3 Ke6 a4 Kd5 h4 Kd4 h5 f5 e6 c5 h6 b5 a5 g5 a6 f4+ Kf2 c3 h7 g3+ Kg2 c2 Kh3 c4 d3 b3 a7 b4 Ra3 g4+ Kg2 c3 e7 b2 e8N b3 Ng7 Na6 Nd2 Ke3 d4 b1R d5 b2 d6 Bd7 Rh3 Nc5 Nh5 Rc8 a8B Ne4 Nf6 Nh6 Bc6 Nf7 Ra8 Bh6 Qe1 Rg8 h8Q Qf8 Qh7 Ra1 Qf5 b1R Qe6 Rb4 Ba3 c1B Ndf3 Bb2 Nd4 Rc4 Bb4 f3+ Kh1 g2+ Kh2 Rd8 Qb1 Kf2 Qa2 Re1 Nc2 Rh8 Qa6 Rg8 Bb5 Rcc8 Bd3 Rg5 Bb5 Rf5 Bd3 Rf4 Rg3 Bb5 Nd7 Bc6 Nb8 Be8 Rh3 Bd7 Rh5 g3+ Kh3 Bg7 Re5 Bh6 Na1 Ke3 Bc2 f2 Bb1 Kd2 Nc2 Kd1 Nf3 g1B Bg2 f1N Bh1 Ba7 Ng1 Nh2 Bf3 g2 Bh5 Bb6 Bg6 Bc6 d7 Ba5 Bh5 Re8 d8Q+ Bd7 Qc7 Red8 Nf3 g1B Bg6 Rf5 Kh4 Bgb6 Ng1 Kd2 Na3 Ke3 Nc2+ Kf2 Bh5 Kf1 Bg6 Nf2 Re3 Ne4 Bh5 Nfg5 Be8 Nf7 Qec4 Rf6 Qe6 Rf4+
2bkN2R/n2rn2R/3QR3/n3q1nB/2b2P2/1rrpBN2/2Q4n/2Q1KrbB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 g4 d5 g5 h3 c5 h2 b6 e3 c6 h4 b5 h3 g6 a4 g7 e4 b7 a3 c7 d3 b6 d4 Bg2 e2 Qb3 d2+ Kf2 e1N Bf3 d1R Be3 a2 Qd3 Ne7 g8Q Nbc6 b8R Qd6 b7 Na7 Qgc4 Qe5 Bd2 e3+ Kf1 e2+ Kf2 Rh7 Qcb3 Rc1 Qdc3 d3 Be4 Nf3 Be3 e1N Nd2 Ng5 Qb6 Nef3 Qcb3 Rc3 Re1 a1N Qc2 Nb3 Nc4 Na5 Qbb2 Rb3 Nd6+ Kd7 Ne2 Rf7 Ne8 Rg7 Rhf1 h1B Qbc1 h2 Nd4 Bg2 Bg6 h1R Bh5 Nh2 Nf3 Bh3 Re2 Be6 Ke1 Bc4 Rg1 Ng4 Rf1 Rh2 Rh1 Rf2 Rh3 Nh2 Rh4 Nb5 Rh3 Ra7 Ra8 Ra6 b8Q Rc6 Rh4 Na7 Qb4 B8a6 c8B+ Kd8 Bh3+ Bc8 Bg2 Rc7 Bh1 Rd7 Qb8 Rg6 Rh3 Rc6 Qd6 Bb5 Ng1 Qa1 Bg4 Bg7 Rb8 Bd4 Rb7 Ng8 Bgf3 Rg2 Bd2 Bc5 Qb8 Re7 Re6 Qe5+ Be2 Bb6 Rh5 Rcc3 Rh8 Bc4 Rc7 Be3 Bh5 Rh7 Nf3 Bg1+ Be3 Rf2 Rh6 Rf7 Rcc6 Rd7 R6h7 Ne7 Re6 N5c6 Qb4 Na5 Qd6 Rf1+
1nbb1qQ1/2R5/3nK3/b1nPb1N1/r2pQ1BB/3Q1r2/NnR3Rb/rk1B4 w - - 0 1 illegal: No proof kernel
1BBQnn1k/2nK3b/2RBN1rn/3p1QrN/3r1nbP/8/r6q/1Q1R1Rb1 w - - 0 1 illegal: No possible last move
K2rQNb1/R2n1NrR/2Pb3q/bp1n3Q/1Bk1N3/3nr1B1/n7/QB4bn w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 e5 Ke4 g5 Kd5 b5 a4 g3 c4 d3 f4 d2 h4 g4 f6 b3 f5 g2 h5 b2 c5 g3 h6 e4 c6 e3 a5 e2 h7 e1B a6 Ne7+ Kc5 d5 a7 d4 Bd3 Qd6+ Kb6 Be6 Kb7 Nd7 Bf1 d3 Nf3 g1R Rh4 g2 Ra3 Re8 Nc3 b1N a8Q Bc4 Qe2 d1N Bf4 d2 Ra7 Nf2 Qc8 d1N Ka8 Rg8 h8Q Nb2 Qb8 Rg3 Ne4 Ba5 Qd1 Bd5 Bd3 Nc3 Qa1 Nh1 Bb1 Nd3 Be5 Rg7 Bg3 Re1 Qh6 g1B Nfg5+ Kg8 Qg6 Re3 Rh2 Bb3 Rh7 Na2 Qh5 Qf4 Qe2 Qh4 Qd1 Qh6 Qh5 Nc8 Qbe5 Bd6 f7+ Kf8 Qe6 Rd8 Qeg6 Ke7 f8N Be5 Nc3 Bf4 Qe8+ Kd6 Nce4+ Kd5 f6 Bb6 f7 Ba5 Nfe6 Be5 f8B Ncb6+ Kb7 Bc4 Bb4 Bd6 Nf8 Na4 Qf3 N4c3 Qd1 Kd4 Qdh5 Bg8 Nf7 Kc4 Qhe5 Nd5 Qh5 Bb8 Ka8 Bd6+
b1rr3b/2rN4/n1p3rB/Q1q2N2/K2R4/Q1nR1B2/b2RqPQr/2rNk3 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kd7 Kd2 Kd6 Kc2 Kd5 b4 h5 g4 e5 g5 a5 b6 h3 b5 h4 g6 e3 g7 Ke4 d5 a4 b7 h2 d6 h3 b6 e2 d7 e1Q Qd6 c3 Qc5 a3 Kb3 a2 Na3 c2 Bb5 Qe2 Qc3 Qe7 d8Q Be6+ Bc4 Nf6 g8Q Bg7 Bd2 c1R Qge8 Nd5 Qed7 Na6 b8N Qc5 b7 Rg8 Qa5 Nc3 Bh6 Bh8 Qg5 Rg6 Bd5+ Kd3 Nc4 e4 Qde7 e3 Nd7 Rc8 Nd6 Kd2 b8R Ke1 Rb4 Rd8 Rb1 a1R Nf5 Ra4 Rg4 Rc4 Bf3 Rc8 Rb2 Rd1 Nb8 Rdd8 Rd2 Bd5 Rh4 Ba8 Qg2 c6 Ng3 Re4 Qa7 Re7 Nf5 Rec7 Rhd4 Qd1+ Rc2 e2 Qb7 Qd3 Nd7 Kd1 Qb8 Na2+ Ka4 Qd2 Bd5 e1R Ne2 Qd3 Rf1 h1B Qb3 h2 Qh3 Be4 Qa3 h1R Qg2 Rh2 Rh1 Qd2 Rb2 Bd3 Bf3 Bc4 Rb3 Bf7 Re3 Qd3 Nc3+ Kd2 Rf1 Ra1 Rb1 Be6 Rbb4 Rc1 Rd6 Bd5 Nd1 Qe2 Rc3+ Ke1 Rh4 Be4 Rd2 Bb1 Rcd3 Nc3+ Kb3 Nd5 Rhd4 Ba2+ Ka4 Nc3+
r3rb2/1B1b4/P2kn1bN/1K1r1R2/Q2qQ1BN/4rR2/bnr1R1p1/2Nn2B1 w - - 0 1 illegal: No possible last move
1knr2RN/q2qpQ2/1Nq2B2/1Nnbn2K/1R2qb2/1Q6/qBq1R2P/4rB2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 f4 d5 b4 Kd7 c4 Kc7 c5 g5 f5 d3+ Kf2 g3+ Ke3 g4 Kf4 a4 Kg5 d4 c6 e3 f6 e2 f7 e1Q Ra3 d2 Rb3 d3 Bh3 g2 Bb2 g3 Qg4 d1Q Bd4 a3 Bc3 a2 Qf5 a1Q Bb2 d2 Nc3 Be6 Nf3 g1Q Ne5 g2 Ng6 Nd7 b6+ Kb8 b5 Ngf6 b7 Nc5 Rb4 Nd5 Qf1 Rh4 Nh8 Qd6 Kg6 Bh6 f8B Qdc1 Qf7 d1Q Bg7 Re4 Bf6 Qdc2 Kh5 Qgf2 Rf1 g1N Bg2 Qd4 Rf2 Qd7 Re2 Bf4 Bf1 Qa2 c7+ Ka7 b8N Nb6 c8Q Nf3 Qcg8 Nc8 b6+ Kb7 Qg3 Ne5 Nb5 Bd5 Qb3 Qdf2 Nc6 Qg1 Na5+ Kb8 b7 Qd4 Nc4 Qef2 Rd2 Re1 Re2 Qde4 Nb6 Qfe3 Qc4 Qea3 Qb3 Qa7 Qd3 Nd6 Nc7 Qc2b1 Na4 Ne6 Rd4 Qcc6 Ng6 Nc5 Qb3 Qbd3 Nb5 Qc2 Na3 Kc7 b8R Qh1 Nh8 Qg2 Rg8 Qge4 Rb4 Rd8 Nb6 Kb8 Nb5 Nc8
4kr2/KR1Np1nP/b1b2q2/B2BqN2/1Bn1bRNb/2Q2br1/5q2/2R3bQ w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 g5 Kd3 b5 f4 d5 c4 g3 a4 b3 h4 b2 h5 g4 h6 g2 c5 g3 h7 b4 a5 b3 c6 Nh6 a6 Qd6 a7 Qb4 c7 Qa5 f6 Nd7 f5 Qc5 Nh3 g1Q Na3 b1B+ Nc2 g2 Ba3 b2 Bb4 Rb8 a8N Rg8 Nb6 Bg7 Ra7 Qf2 Rb7 g1B Bg2 Qd6 Be4 Qe5 Qe1 Ba2 Ne3 Bh8 Bg2 Rg3 Qa1 Bb3 Qa8 Ba4 f7+ Kf8 Bf3 Bc6 Qa1 Bf6 Qc1 Qe1 Nf2 Bh4 Nfg4 Qf2 Be4 Bh2 Rf1 Bg1 Qd1 Ra8 Qf3 Qf6 Rc1 Qe5 Qh1 b1Q+ Rc2 Qa1 Rc1 Qf6 Na4 Nb6 Nc5 Nc4 Nd7+ Kg7 f8B+ Kf7 Bg7 Ke8 Bh8 Qe5 f6 Nf5 Bf3 Ng7 Nf5 Rb8 Rb5 Ba6 c8Q+ Kf7 Qc7 Rf8 Rb7 Ke8 Ba5 Nh5 Bg7 Qab2 Bh6 Ng7 Bhd2 Qa1 Kc2 d3+ Kb3 d4 Kb4 Be4 Be1 Bc6 Bd5 d2 Kc5 d1B Bed2 Bc2 Bdb4 Qee1 Qe5 d3+ Qe3 d2 Qd4 Ne5 Kb6 d1B Ka7 Bf3 Qe3 Nc4 Qc5 Qee5 Qd4 Qc7 f7+ Kd8 Qc5 Qf6 Qe3 Re8 f8R Bce4 Rf7 Rf8 Qc5 Ke8 Qd4 Nb6 Qc3 Qcd6 Nfh6 Qfe5 Rf4 Qdf6 Nf5 Nc4+
5QQ1/QnP1nbBb/3pqr2/bBN5/Nb2r2b/1RbB1N1q/1R6/3K1q1k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 h4 Kf6 b4 Ke5 c4 a5 b6 g5 h5 f5 h6 f3 c5 a4 h7 f4 c6 a3 b7 a2 c7 d3 b5 g3 b6 g2 Nh3 g1B Qd2 f2+ Kd1 f3 Nf4 g4 Ne2 g3 Qc2 g2 Nbc3 d2 Rh2 Qe8 Nb5 Ne7 Qd3 Ra4 Rh4 Nbc6 b8Q Na5 Ned4 Nb7 Rh3 Kf4 Rh4+ Kg3 Rb1 a1B e5 Bc3 e6 d6 Rg4+ Kh2 Qg6 Kh1 Bd3 f1B Qf5 f2 Nf3 Re4 Qa7 Bh6 Qg5 Rf8 h8Q Rf6 Rb2 Qh5 Qgg8 Qh3 Rg3 Bg5 Qf8 Bh4 Qhg8 Bb4 Nc3 Ba5 Bc2 Bc4 Bd3 Bh2 Na4 g1B Rg7 Be5 Rg3 Nd8 b7 Bec3 b8N Nb7 Na6 f1Q+ Kc2 Bf2 N6c5 Be1 Kd1 Bcb4 Rg2 Bd7 Rb3 Be8 Bb2 Bg6 Re2 Bh7 Rf2 Nf5 e7 Bf7 e8B Ne7 Ba1 Qe6 Beb5 Qfh3 Bc3 Rff4 Bg7 Rf6 Kc2 d1Q+ Kb2 Qa1+ Kc2 Bec3 Rg2 Qa2+ Kd1 Qc4 Rgb2 Qce6 Rb1 Qf2 R1b2 Qff1+
R2nbRB1/1Pb1RrK1/bN2r2r/2q4r/Q3n1p1/1n3b2/N1k3b1/Q1B3BN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 h4 d5+ Kd3 Kf5 b4 g5 c4 g3 b6 f3 b5 f2 c5 a4 e3 g2 b7 g4 b6 a3 h5 a2 h6 Qg5 c6 Ra5 h7 Bd6 c7 Nf6 Qe1 Nc6 b8R Ba6+ Kc2 Ke4 c8N d3+ Kc3 d2 b7 d1B Na7 Ba4 Ne2 g1R Rf8 Bc7 Nc8 Nd8 Nb6 Be8 Rh4 Rh1 Rh5 Rg8 h8B Rg6 Rh7 Rhh6 Qd1 Rb5 Bg7 d4+ Kc4 d3 Nbc3+ Kf3 Kd4 d2 e4 Qf5 e5 Ne4 Qe1 d1B Ng3 Re6 Bc4 f1B Nh1 Bg2 Bh8 f6 Re7 Qh5 Qg1 f5 Bg7 f4 Bh8 Rc6 Bg8 Rce6 Bf6 Be2 Bh4 Ra5 Bf2 Qg5 Qd1 Qf5 Bg1 Qg5 Rb1 a1N Na2 Qf5 Rb5 Nb3+ Kd5 Qg5 Qd4 Bd1 Qa1 Ke2 Rc5 Kd3 Rb5 Ra3 Ra5 f3 Ra4 f2 Ra5 Kc2 Ra4 Baf1 Ra8 Na5 Kd4 Ba6 Kd5 f1R Kd4 Rc6 e6 Qe3+ Kd5 Rd6+ Ke5 Bdf3 Kf5 Rc3 Ke5 Nb3 Kf5 Rcc6 Ke5 Rh7 Kf5 Rf7+ Kg6 Qc5 Kh6 Rf5 Kg7 Rfd5 Ref7 Rh5 e7 Bd7 e8Q Rdh6 Re7 Rce6 Qf7 Bc6 Qff6 Be8 Qfd4 Bfe2 Qb4 Rff5 Qbd4 Bef3 Qa4 Rf7+
R2R3Q/Bp1KN3/b6n/brN1PbqB/Qnrb1Qr1/3Rr3/n3kN2/b7 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 a4 g5 a5 b3 h5 b2 a6 f3 Kg3 f2 a7 f4+ Kh2 f3 Kg3 c4 h6 c3 h7 c2 Qd3 Na6 Qd1 Bf5 Bc4 f1B Nh3 f2 Qe1 Nb4 Be3 c1N Nd2 b1R Nb3 Bg7 Be2 Nh6 Nc5 Rc8 a8Q Rg8 h8Q Nca2 Qd2 Qe7 Bf3 Ba6 Rd1 f1R Nf2 Re1 Qc1 Rb3 Rd3 Rc7 Qe8 Qd8 Qa4 Be5+ Kg2 g3 Bh5 g4 Qc4 Qg5 Qc1 Rc6 Qc4 Kc7 d6+ Kb6 d5 Bg7 Bd4 Re3 d7 Rc7 d8N Rc8 Kg1 g2 Kh2 g1B+ Kg2 g3 d6 Be5 d7 Bc7 e5 Rb2 Qac2 Rg7 Qf7 Kb5 Nc6 Ba5 d8R Rg8 Qd1 Rb3 Qf8 Kc4 Ne7 Rb1 Qa4 Rc7 Ng4 Bf2 Kh3 g2+ Kh2 Be1 Nf2 Bc3 Qff6 Qg7 Qg5 g1B+ Kg2 Qf6 Qg3 Rg4 Kh3 Qg5 Qf3 Ree1 Qf4 Re4 Be3 Rc8 Bd4 Re3+ Qg3 Re2 Nd5 Bg6 Nfe4 Bb5 Rd2 Bb6 Ne7 Rf4 Qa5 Nc1 Nd7 Nc6 Bc5 Bgd4 Qa8 Re3 Nf2 Bc7 Ra5 Ba1 Bb6 Kc3 Rd3+ Kc2 Raa3 Na2 Qa5 Rb2 Qb4 Be4 Ra8 Ba6 Ba7 Ba5 Qa4+ Kc1 Qf3 Rb5 Qg3 Ncb4 Qf3 Rc4 Nc5 Rg4 Qg3 Bh7 Qf3 Rg2 Qg3 Qg7 Kh4 Bg6 Kg5 Qg8 Kf6 Bf5 Qf4 Rg4 Nd5 Qg6+ Ke7 Qg5+ Ke8 Rg1 Ne7 Rg4 Rb3 Kd2 Rc3 Bh7 Kd7 Ke2 Rd3 Bf5+
3nn3/PQbKNN1Q/1q1Nn2r/B2b2pk/6R1/1b1n2Rr/1rn4R/1Q1b1B2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 a4 Kf7 e4 Kg6 d4 b5 h4 c5 e5 c4 d6 b3 a5 f3 Kg3 c3 Kf4 f2 d5 b2 e6 c2 Ke5 f4 a6 f3 d7 g3 a7 b4 d6 g2 e7 b3 Ke6 Nc6 e8N Qb6 Bh6 c1N Ba6 f1B Ra3 f2 Qe2 Nd3 Qe4+ Kh5 Bd2 g5 Rh2 Be2 Ba5 f1N Nc3 b1R Nf3 g1N Ne5 b2 Nd5 Nh3 Ne7 Bd1 Nf7 Bb7 d8R Rh6+ Kd7 Nhf4 Rc8 Nd8 Rc4 Ne3 Qf5 Ne2 Rg4 Bd5 Qf3 B5b3 Qb7 Nc2 Bc4 Ned4 Ba6 Ndb4 Bf1 Bd5 Rag3 N4e6 Nc7 Rc8 Nb5 Bb3 Ke8 Rb8 d7 Nd3 Nbd6 Ra1 Rd4 b1B Rdg4 Nc6+ d8Q B1a2 Qdc8 Ncd8 Kd7 Bd5 Qc5 Bab3 Qb4 Ra3 Qe1 Bg7 Qe4 Be5 Qb4 Bbc4 Qb1 Bb3 Bg2 Ba4+ Nb5 Bc7 Rd4 Ndf4 Rf3 Kg4 h5 Rf6 h6 Qc5 h7 Rh6 h8Q Re3 Bh3+ Kh5 Qa8 Nd3 Rg4 Rb7 Qh7 Nf6+ Kc8 Qb4 Nbd6 Ne8 Qb8 Rb5 Kd7 Qc5 Qb7 Qb6 Rfg3 Rf3 Rg1 Rg3 Bf1+ Rh3 R1g3 Rb2+ Qc6 Bab3 Qb5 Qf2 Qb7 Qb6
4b1Rr/pB1Bq1rq/2Q1R2n/1NNN1n2/PbR1r3/r2r2B1/1kn4K/1r2Q3 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 Kf2 Kd7 e4 Kc6 a4 h5 g4 f5 Kg2 b5 d4 c3 e5 Kd5 c6 f3+ Kh2 f4 g5 b4 e6 c2 g6 f2 g7 b3 e7 f3 e8B h3 c7 h4 Bg6 b2 Qe2 Nh6 g8R Bb4 Bg5 c1R Be7 Rd1 Qa6 Rd3 Rf8 Bd7 c8Q Nc6 Na3 b1R Nb5 Kc4 d5 Kb3 d6 Be8 d7 Kb2 Ne2 Nd4 Qac6 Ndf5 Bg2 f1R Rg8 f2 Nec3 Rfe1 Bd6 Qe7 d8N Re4 Nd5 Rh7 Q8b7 Rg7 Ne6 Rd8 Rf1 Ra3 Rc1 Rd7 Bg3 f1N+ Kg1 Rd6 Nc5 N1e3 Kh2 Nc2 Bf7 Rd8 Be6 Rd7 Qba6 Rd8 Qa5 Rd7 Kh1 h2 Bf3 Rd8 Kg2 h1R Bd7 Rd1 Kh2 Rdd3 Re1 h3 Re2 Rf4 Re6 Re4 Ra2+ Kc1 Rb2 Rb8 Rb3 Ra8 Rc3 Kb2 Qac7 Rd8 Qf4 Ra8 Qd2 Rc8 Qe1 Rb8 Kh1 h2 Rc4 Ra8 Kg2 h1Q+ Kf2 Qd8 Qd6 Rh4 Ne3 Bg6 Rf8 Qe7 Bb7 Ng8 Nd5 Re4 Qc6 Qh7 Kg1 Ngh6 Kh2 Rb8 Rf7 Rh8 Rf8 Bh5 Rg8 Be8
Q1rk1bq1/2rb1b2/2QR4/rR1BBq2/1N3Nnr/2pnR1KQ/3P1r2/2b4B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 h5 b4 f5 e4 a5 g4 c5 b6 h3 b5 h4 g5 c3 g6 c4 e5 a4 g7 c2 e6 c3 e7 h2 b7 a3 b6 a2 Qg4 h3 Qg2 f3 Qg3 f4 Bd3 Nf6 g8B Ra5 Bgc4 Nc6 b8R Bd7 b7 Ne5 Ba3 c1B Bd5 Ra7 B3e4 Nfg4+ Ke1 Ra5 Ne2 f2+ Kf1 Nd3 Bd6 Rc5 Na3 Rc7 Nc2 Rh4 Rb1 a1R Be5 Ra5 Rb5 Rh8 Rg1 h1B Nb4 h2 Qh3 Bf3 Ra8 h1R b8Q Qc8 Ra6 Rg8 Qh7 Rh4 Qa8 Rh8 Rd6 Qd8 Ng3 Bg2+ Ke2 f1R Nh5 Bh1 Rg3 Rf2+ Kd1 Bg2 Re3 f3 Nf4 Bh3 Qf5 Be6 Qh5+ Bf7 Qh7 Re2 Qh6 f2 Bh1 f1Q+ Kc2 Qg2 Kd1 Qe4 Qh5 Rf2 Qh6 Rf1+ Ke2 Qf5 Qe6 Ngf2 Kf3 Ng4+ Kg3 Rf2 Ra6 Rc8 Qh6 Rh7 Rg6 Kd7 Rd6+ Kc7 e8Q Qdg5 Qee6 Qg8 Rdb6+ Kd8 Qec6 Be6 Qc5 Rc7 Rd6+ Bd7 Qcc6 Bg2 Ba2 Bd5 Qh7 Be6 Bad5 Bf7 Qh6 Rh5 Qe6 Rh7 Qh6 Rh8 Qh3 Rh4
Kq5Q/B1Bnq1q1/2NBqq2/1Qb2Nr1/N4R1p/r2Q2bR/2b3bP/2n1k3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 f5 b5 axb5 e4 e3 g6 Bc4 gxf5 Be2 f4 Bf3 exf3 Kf2 Ke7 b4 Kd6 g4 Kd5 c4+ Ke4 c5 a5 c6 h5 c7 d5 b6 f5 b5 h4 g5 d3 g6 d4 b7 a4 g7 a3 b6 d2 Qc2+ d3 Qb3 d1Q Nh3 d2 Rg1 a2 Na3 Ne7 g8Q Nd7 b8B Rh5 b7 Nc6 Ba7 Bc5 b8B Nce5 Rg7 Qe7 Nc4 Bb7 c8N Rg5 Ba3 Qb1 Qh8 d1B N4b6 Bc2 Rf7 Qb2 Rd1 a1B Na4 Qe6 Qc3 Qbb6 Bc7 Bb2 Ng1 Nd3+ Kf1 f2 Ke2 Ba1 Nf3 f1Q+ Kd2 Qh1 Ne5 f3 Ne7 f4 N5c6 f2 Nf5 Kf3 e4 f1Q e5 Kf2 Rf8 Nc1 Qd3 Qe7 e6 f3 Rf6 Qg7 e7 Qh3 e8Q Be5 Qb8 Bed6 Kc3 Qe1+ Kc4 Qee7 Kd5 Bg3 Rd2+ Ke1 Qbe8 Bg1 Bad6 f2 Rf7 f1Q Rf2 Bc8 Rf4 Bc5 Rf6 Qg4 Re6+ Qge2 Re3 Bb7 Qeh5 Bf2 Rh3 Bg3 Qhf3 Qff2 Qfe4 Qf3 Qb5 Qfc3 Qed3 Qcf6 Bab8 Ra6 Ba7 Qg4 Nb2 Ra3 Na4 Qge2 Qdb3 Qfh6 Q3d3 Bc8 Nd8 Qgf6 Qh7 Qhg7 Qh8 Qa5 Kc6 Q2e6 Bcb6 Bb7+ Kc7 Nf8+ Kb8 Bg2 Nc6 Nd7+ Ka8 Qa6 Bd8 Qb6 B8c7 Qb8+
r2Rr1rN/1qQn1b2/r1q5/N4Kbq/1BB1PRr1/1p1R3Q/B5N1/1qn3k1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 f5+ Ke5 h5 a4 b5 e4 h3 g5 b3 d6 h4 d7 f3 g6 b4 a5 f4 a6 b2 a7 f2 g7 h2 d3 b3 Na3 b1Q Qh5 f3 Bh6 h3 Ra2 Nc6+ Kf5 Kd4 Bd2 Qe7 Kf4 Nb4 d8N c5 Nc4 Nf6 g8Q Nd7 Qhg4 Bh6+ Kf5 Bg5 Rc2 Na2 Be1 Nc1 Qf7 Re8 Na5 Ke3 d4 c4 d5 c3 Bd3 f1R d6 f2 Rd2 c2 Ne2 Rg1 Nf4 f1R Qc4 Ba6 Qc7 Bc4 Nf7 Bd5 Qh4 Rg4 Nh8 Rfg1 Ng2+ Kf3 Rd1 Qg7 Bb4 Bf7 Qh5 Kf2 Qh7 Rf1 Rg1 h1Q Qh6 h2 Qh3 Re1 Rd2+ Re2 Rdd1 Rg8 Rge1 Rae8 a8B Rd2 Re3 Re2 Rd2 Kg1 Bd5 Ra8 B5c4 Rge8 Nh4 Reg2 Rf2 R2g3 Rf4 Qf3 Bb5 h1R Bbc4 Qd1 Ng2 Qe2 Qh7 Rh6 Ref3 Rg6 Qh6 Qh7 Qh3 Qh5 Re3 Qf2 Ref3 Qa7 Re3 Qb7 Ref3 Nc5 d7 Rga6 d8R Nd7 Re3 Na2 Ref3 c1Q Re3 Qc3 Bc2 Nc1 Rd3 Qbb2 Bb1 Qbc2 Ba2 Qb1 Bb5 Qcc6 Rc3 Rd3 Bc4 Rd6 Re3 Rg6 Rd3 Rgg8
Q4b2/4NNQn/3RBrR1/1q1Rq3/pKPBn3/1Qrb1Nrr/7n/n2r3k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Ke6 g4 Ke5 c4 h5 b4 d5 g5 a5 b6 f5 g6 h3 g7 h2 b5 d3 Kc3 f3 b7 f2 b6 d4+ Kb3 f4 Nc3 h4 Nge2 f3 Bg2 f1N Qe1 d2 Bb2 d1N Nf4 h3 Nb1 f2 Ne6 Qe7 Qe3 Nf6 g8Q Na6 b8R Nb4 b7 Nc2 Qh7 Nc3 Ng5 d3 Qg8 d2 Qd3 Kf4 e5 d1R Qgh7 Bf5 e6 Rg8 Rg1 h1R Rd8 h2 b8N Ra7 Qh6 Nh7 Bd5 Qd6 e7 Qe5 Ra2 Na1+ Ka3 Ra6 Nd2 Rf6 Be6 Qb5 Ndf3 a4 Bd7 Rgg6 Qg7 Rc1 Qb1 Bc2 Bg4 Ne4 Nf7 Qe5 Bc8 Rg2 Bg4 Kg3 Rd6 Rd1 e8Q Rc1 Bd4 Rd1 Be3 Rd3+ Qb3 Rc3 Nc6 Bb1 Rd2 Bc2 Rd5 Bd3 Bh5+ Kh3 Qa8 Rg5 Rg4 Rg1 Nfd4 h1R Ne7 Kh2 Rg3 Rgg6 Bg4 Rh6 Bf5 Rh3 Rg6 Rgg3 Be6 Rhg1 Nf3+ Kh1 Bd4 Nh2 Nc8 f1Q Ne7 Rc2 Qbb7 Qb1 Qb2 Rd1 Qa2 Qb5 Qb3 Qe8 Kb4 Rc3 Qb7 Qd7 Qa8 Qb5+
1R4QN/1bnR1R2/b1b4Q/k1bB2Np/1n2nK2/2N1rn1n/qq1P1Q2/Br6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 g4 f5 b4 c5 e4 Kc7 e5 Kb6 g5 h5 e6 c3 e7 c2 e8R c4 g6 c3 g7 a4 Nh3 a3 Re4 a2 Re8 Qf6 Re3 Na6 Bb2 c1N Re1 c2 Na3 Nc7 Qe2 Bc5 Bc3 Rb8 Be5 Nd3 Rh2 c1N Qf2 Ne2 Ng5 h3 Rab1 a1Q Bg2 Qa2 Ba1 Qfb2 Rhh1 h2 Rhf1 Nf6 g8N h1B Nh6 Rg8 Nhf7 Ne4 Nh8 Bb7 Rec1 Bc6 Rc4 Rge8 Rd4 Ka7 b6+ Ka6 b5+ Ka5 b7 Nb4 b6 Nd6+ Ne4 Bd7 Qg1 Nc6 Nf7 Qc1 Nh8 Bb4 Qh2 Ng1+ Kf2 f3 Ke3 f2 Ng6 Bc5 Nb5 Re7 Nc3 f4+ Kd3 f3 Nh8 Be8 Qh4 Re6 Ng5 Bd7 Qf4 Re1 Qf5 Rbe8 Rb3 Qcb2 b8Q Rb1 Qc8 Ree1 Qg8 Re6 b7 Re7 Rd1 f1N Qf6 f2 Qh6 Nh2 Rf1 Re8 Be4 Bg2 Rb6 Nb4+ Ke3 Ncb5 b8Q Re7 Qbe8 Nc7 Qef8 Bh1 Rc1 f1B Rb8 Ba6 Rf1 Bdc8 Qf3 Bcb7 Qg2 Re6 Rf7 Re5 Kf4 Re6 Bg6 Re3 Qf2 Bhc6 Be4 Nhf3 Rd5 Ndb5 Rdd8 Nd6 Bd5 Ne4 Rdd7 Nh3+
1nR1bb1q/N1N4q/K2B3k/nR1rPR2/Q2b1pr1/2n2N1B/4n2b/B2Qb3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 Kf7 h4 Kg6 c4 a5 h5+ Kh6 c5 a4 b6 a3 c6 f3 c7 a2 b5 f4 b7 f2 b6 g3 e5 g4 Qf3 g2 Nh3 g1B Qg3 Bd7 c8Q Ra5 Nd2 Be8 Bb2 Ne7 Ng5 Nec6 Ne6 Rg8 Qf3 g3 Rb1 a1B Bh3 f1N Qd7 g2 Nc7 Bf2 Qd1 g1B Nf3 Be1 Bc3 Qf6 Rb5 Bh2 Rg1 Qd8 Rg5 Ng3 Rf5 Rg4 Qa4 Ne2 Qd1 Na6 b8N Qe7 b7 Qh7 Rb4 Rc5 Rb5 Na5 Nc6 Nb8 Na7 Nc4 Kc2 d3+ Kb3 d4 Kb4 d2 Qa4 d1Q Qd5 Nd2 Ka5 d3 Qdb3 Qb1 Qd1 Nb3+ Kb6 d2 Bd4 Nd7+ Ka6 Qh8 b8B Rd5 Bb2 Na5 Bc3 Kg7 h6+ Kg6 h7 Kh6 Na8 Qd3 Bd6 Qe4 Nc7 Qb1 Bcb4 Bd4 Bc3 Qd3 Ba1 Qb1 Qdc2 d1N Qc1 Ndc3 Qcd1 Qg8 h8R+ Qh7 Rg8 Qh8 Rf6+ Qg6 Rf5 Qgh7 Rg7 Bh5 Re7 Bf7 Re8 Bh5 Reb8 Be8 Rc8 Nb8+
3b1n1Q/r5nn/1nNKRQB1/n2PrB2/r1QRq2N/1R1bp3/r4B2/k4q2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 h5 f4 c5 d4 a5 b6 e3 b7 c3 b3 c2 g5 a4 f5 c4 f6 a3 d5 a2 g6 h3 f7 c3 g7 e2 Be3 c1N Nd2 Ka3 b4 Kb2 b5 e1R b6 c2 Bg2 h2 Qe2 h4 Bh3 Ra4 Bf4 Bf5 Qe4 Nb3 Bf1 c1N Ngf3 h3 Be2 Nc5 Nb1 Ne6 Be3 Nf6 g8B Qe8 Bc4 Rh7 Ng1 Nb3 Nf3 Na5 Nd4 Bh6 f8Q Bg5 Qh6 Nf8 Bd3 e6 Qg7 Nbd7+ Kd6 e5 b8R Bh4 b7 Nb6 Qeg4 e4 Be6 Qf7 Rg1 h1Q Bf2 h2 Nc6 Qg2 Qf4 h1N Nd2 Ng3 Nf3 Nh5 Rd1 a1R Qgg5 Re2 Rge1 Ng7 Qgg4 Bg6 Bf5 R1a2 Qh6 Bg5 Nh4 Qh1 Bb1 Ka1 Rd4 Qe8 Qf4 Qf1 Qc1 Nfh5 Qc4 Bd8 Qf4 Nf6 Qf3 Rh6 Qf4 N6h7 Qg5 Re3 Qf6 Rea3 Re3 Rh5 Rb3 e3 Ra8 Re2 b8Q Qe4 Ra7 Rea2 Re7 Be8 Bg6 Re5 Bf5 Bh5 Re6 Be2 Bg6 Qeg2 Bbf5 Qe4 Qc8 Bd3 Qb7 Rb4 Qbf7 Raa4 Qg8 Rb5 Qh8 Rc5 Na7 Rc7 Nc6 Ra7
6NN/1Bn1b1Rq/RbQ5/2PB1bb1/KQn1Q3/3rp1Bk/q3Nr2/1nn2b2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Kf6 g4 Kg5 c4 h5 Kc2+ e3 Kb3 e5 f3 d5 c5 a5 b6 a4+ Ka3 h3 b7 Kh4 b5 h2 g5 e2 g6 e1B b6 e4 f4 d3 g7 d4 f5 e3 f6 d2 f7 d3 Qc2 d1B Nc3 d2 Nb5 Na6 b8N Nf6 g8B Qd5 b7 Nd7 Rb1 Ne5 Qd3 Nc7 Qe2 Nc4+ Kb4 a3 Nh3 a2 Rb2 a1B Nf4 Ra2 Qf3 Be2 Nd4 d1N+ Bd2 Bf5 Bg2 Be7 f8Q Bf1 Rg1 h1Q Qe4 Nc3 Qe8 Nb1 Nde2 Qh2 Rc2 Baf6 Nd7 Bg5 b8Q Rh6 Kb3 Rd6 Nf6 Qf7 Qb4 Qh7 Rc3 Rd3 Bd5 Rc2 Bf3 Ra2 Ng6+ Kh3 Rg4 h4 Ng8 Bg3 Be1 Rc2 Nd4 Rf2 Nh8 Bgd6 Qea4 Bd8 Qa8 B6e7 Ka4 Ra2+ Ra3 Na6 Qab8 Rc3 Bd2 Bh6 Qd6 Bb6 Be1 Nc7 Rg7 Bhg5 Ba8 Qd2 Qh6 Kh2 Qd3 h3 Bfd5 Qb2 Qe4 Rd3 Qf6 Qa1 Bh4 Rf2 Bab7 Qa2 Qc6 Rc3 Nf3+ Kg2 Bg3 h2 Nd4+ Kh3 Bd6 h1N Bf4 Rh2 Ne2 Nf2 Bd6 Nd3 Bg3 Na8 Kb5 Nc1 Ra6 Rd3 Qe5 Rf2 Qe4 Nca3+ Ka4 Nc7 Qb2 Nc4+ Qa3 Qd2 Qb4 Qa2+
7R/1bBnnrRb/k1B2b2/q1Pb2N1/rRb3p1/8/2NBQq1K/Qr2rN2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 Kg2 a5 h4 f5 e4 d5 c4 Kd7 b4 Kc7 h5 Kb6 e5 g3 h6 g4 e6 d3 e7 a4 e8N d4 h7 d2 Bb2 a3 Nf3 a2 Ng1 d3 Ba3 Ne7 Ng7 Nd7 Rh4 Bb7+ Nf3 Ra4 Nh5 Bg7 Bc1 Re8 h8Q Bf6 Qe2 d1B Bd2 Bb3 c5+ Ka7 b6+ Ka6 Rh3 B3d5 Na3 Qa8 Rd1 a1R Nc2 Rb1 Kg1 g2 Kh2 g1R Ng5 f3 Ng3 f2 Bg2 f4 Nf1 f3 Qg7 Rc8 Rh8 Rf8 Re1 Rf7 Rd1 Bc8 b7 Qa7 b8B Bcb7 Bg3 Qb6 Bc7 Qa5 Nfe3 f1B b5+ Ka7 b6+ Ka6 Re1 f2 Be4 Bg2 Nf1 Bc4 Bc6 Bgd5 Ng3 f1Q Rd1 Ba8 b7 Qf5 b8R Re1 Rb4 Bb7 Nf1 Qf3 Bdf4 d2 Be3 Rb3 Ra1 d1B Bd2 Rb1 Ra3 Qf5 Rah3 Qf3 R3h7 Qe3 Qg6 Qd4 Rg7 Qb2 Qge4 Qd4 Q4g2 Qf2 Qe5 B1f3 Qc3 Bfe4 Qa1 Qd4 Qf2 Bh7 Qe2 Qf2+
1Qq1r3/B2n3R/4Bn2/b1P1pQ1N/3r1RB1/N1N1knQ1/Kr2b3/1rq1n1r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 a5 Kb3 h5 b6 d5 b7 e5 g3 e3 g4+ Ke4 g5 e2 f5 e1N f6 a4+ Ka2 d3 b4 d4 g6 a3 b5 d2 g7 d3 b6 h3 f7 h2 Qg4+ Ke3 Nf3 h4 Ng1 h3 Nf3 Nd7 b8Q Bb4 f8N Ba5 b7 Ngf6 Nd4 Nf3 Nfe6 Re8 g8B Ra7 Bb2 d1R Qf5 d2 Be2 Rg1 Ng7 d1R Nb5 Rd4 N1c3 Rb1 Rf1 h1R Be6 h2 Nh5 Rg1 Qc7 h1N b8Q Ba6 Qd6 Rc7 Qb4 Rb7 Qb3 Nf2 Bc1+ Nd2 Bg4 Nd3 Rf4 Qc8 Bb2 Rbc1 Rb1 Ne1 Ba1 Rd1 Rb2 Ndf3 Rh2 Rb1 Rh1 Rg2+ Bb2 Rg1 Bc1+ Kf2 Be3+ Kf1 Nd1 Ke2 Ng7 Rd3 Ba7 Rd4 c5 Kd2 Rh3 Nh2 Qg3 Nhf3 Ndc3 Ke3 Rh7 Rb6 Nh5 Rb7 Nc7 Be2 N7b5 Rc1 Kb3 a2 Nb1 a1Q Na3 Qc3+ Ka2 Rb1 Nc7 Qc1 Ncb5 Rb6 Nc3 R6b2+
2Kn1Bk1/2N2N1r/B2rQ3/Pn3qn1/bQR1q3/3bbB2/Rpn2N1n/6Rb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 h5 Kf3 f5 g4 Kf7 a4 c5 e4 b5 d4 b3 d6 b4 d7 b2 d5 c4 e5 c3 d6 h3 a5 b3 g5 h4 Be2 h2 Ra3 c2 Nc3 b1B Nh3 b2 Re1 h1B+ Kf2 f3 Ke3 f2 Kd4 f1N Kc5 f4 Qd3 f3 Ra4 f2 Qd4 Ne3 Rg1 f1N Qb4 Bh6 Nd5 Nf6 g6+ Kg8 g7 Nh2 e6 Qf8 Kb6 Ra6+ Kc7 Nc6 d8N Nh7 d7 Qf5 e7 Ng5 e8B Rh7 Nf2 h3 Nf7 Nd8 Ra2 Rd6 Ba6 Bb7 Kb8 Bc6 Kc8 Ba4 Bd2 c1N Nc7 Nc2 Be3 Rd1 Bc5 Ne2 Bd6 Ned4 Bf8 N8e6 d8R Nb5 Bc6 Rd6 Rd7 Nd8 Bcb7 Nca3 Bf3 Bd3 Ne6 Nc2 Rc7 Ng4 Rc4 h2 Bd5 Bf3 Be4 h1Q Bd5 Bg2 Be4 Nh2 Bf3 Qe5 Nc7 Qe4 Re1 Qf1 Rd1 Bh1 Re1 Qfe2 Rg1 Qf5+ Ne6 Nh3 Re1 Qd5 Neg5 Qee4 Ne6 Be3 Nc7 Qg5 Rg1 Qf6 Ne5 Qff4 Neg4 Kf7 Ne5+ Kf6 g8Q Ng5 Ng6 Qfe5 Nh8 Q5f4 Qd5 Qfe5 Nf7 Kg6 Be7 Kg7 Qe6 Kg8 Bf8 Q5f5
2K2n1q/r1R1B2q/q4pqn/1B5k/1bb2QRr/rq6/2Q2NP1/1NrNBQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 a5 b4 h5 e4 h3 c4 f3 b6 f2 b7 a4 c5 h2 c6 a3 c7 h4 e5 f6 e6 a2 b5 h3 b6 Bb4 e7 Kf7 e8N Kg6 Nd6 Rh4 Qe2 Nh6 Nf5 Qh8 Ne3 Be6 c8Q Nd7 b8Q Ra7 b7 Nf8 Qcc2 Bg8 Qe1 Kh5 Qf4 Qg7 b8B Qg6+ Qe4 Bf7 Bd6 Be6 Nd1 Ra3+ Ke2 d3+ Kf3 d4 Bd2 Bc4 Qf4 Ra7 Bc3 d2 Be7 d3 Be2 f1Q+ Ke3+ Qf3+ Kd4 Qfg4 Qf1 Qh7 Nf2 d1R Be1 Rc1 Nd1 d2 Bd3 Qh8 Ke4 Qg6+ Kd4 Bb5 Kd5 Bc4+ Kc6 Ra3 Kc7 Qhh7 Nb2 d1Q Kc8 Qf3 Nd1 Qe3 Bf5 Qb3 Bd7 Ra7 Bb5 Ra3 Nd2 Ra7 Rb1 a1R Rb2 R1a3 Nb1 Qa2 Rb3 Qh8 Rg3 Qb3 Rg4 Qhh7 Nf3 Qh8 Rg1 h1Q Nfd2 h2 Ne4 Qhh7 Nef2 Qh8 Qfe2 Qhh7 Rf1 Qg1 Qef3 h1Q Qfe2 Qhh3 Qed3 Qgh2 Rg1 Qe3 Qf1 Qe2 Rh1 Qg1 Rh3 Qh1 Rd3 Qh3 Rd7 Qh8 Rc7 Qhd3 Qa2 Qgh7 Qad2 Qdg6 Qc2 Qed3 Ba4 Qd6 Bb5 Qa6+
NB2B3/1R1b1Kn1/1nN2pbq/2nr4/Q4bb1/P1bkBRrR/2q3n1/6QN w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g4 b5 g5 c5 a3 f3 d6 f2 d5 b3 g6 f6+ Kf4 b4 d7 h3 Kf5 b2 Ke6 h4 g7 h2 d6 b3 Ra2 h3 Qe1 Rh5 Nf3 Nh6 g8N Nf5 Nh6 Na6 Qd1 Ng7+ Kf7 Rd5 Nd4 Qc7 Nc3 b1N Rd2 b2 Na4 Nc3 Nhf5 b1B e4+ Bd3 Be2 f1N e5 Ne3 e6 Ng2 e7 Qc6 d8R Bd7 Rf1 h1B e8Q h2 Bh5 Ra7 Ng3 Bg6+ Kg8 Rb7 Rd3 Rb3 Rb8 Bg4 d7 Bd6 d8B Bf4 Rdf3 Bd2 Rf4 Kd3 Bc7 c4 Nb6 Nc5 Rb7 N3a4 Na8 c3 Bb8 c2 R4f2 Qc8 Nc6 Nb6 Rf4 Bd7 Rh4 Qc7 Qde1 Bc3 Be3 c1B Rh3 Bg4 Qf2 Qc8 Qg1 Qf5 Bd4 Bf4 Bf2 Qe4 Kf8 Qe2 Be3 Qc2 Rf3 Ne1 Ne4 Bg2 Ng3 h1Q Qd7 Bf1 Kg8 Ng2 Qe8 Qh2 Nh1 Bd7 Kf8 Be2 Rf2 Bh7 Ne5+ Ke4 Bd2 Be6 Rg3 Bb4 Qa4 Bd7 Nc6 Beg4 Be8 Qh6 Rh3 Rg3 Rf3 Bg6 Be3 Kd3 Ke7 Bc3 Kf8 Be4 Kf7 Bg6+
R1Q1q1K1/3n1BN1/1Pb2B1Q/1qk2bnR/rp6/1nb4Q/3n1r2/1NRnb1N1 w - - 0 1 illegal: No proof kernel
nb1Q2b1/rN2NQnk/1P2pbnn/1B1N1B2/q1K5/B4Rb1/Qq1Rr1n1/8 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 h5 b4 d5 c4 a5 c5 h3 b6 a4 c6 a3 b7 a2 g5 h2 c7 h4 b5 e3+ Kd3 h3 b6 e2 Qe1 Be6 c8B Na6 b8Q Ra7 Bb2 Nc7 Nc3 Na8 Qb1 e1B Ne4 Bg3 Ke2 d3+ Kd2 d4 Kd1 d2 Kc2 d1N Kd3 Ne3 Kd2 d3 Kc3 d2 Ba3 d1Q Qd6 Qa4 Ne2 Qc7+ Kd3 Qc1 N2c3 Qb2 f5+ Kg7 Rg1 h1N g6 h2 Qd8 Bb8 Nd5 Ng3 Be2 h1N Nc5 Rh2 Rd1 Nh6 Rd2 Nh5 Nb7 N1g3 f6+ Kg8 g7 Kh7 g8N Ng7 f7 Ng3f5 Bd7 Nh4 Bb5 Bg3 Bg4 Re2 Bh3 Neg2 Bf5+ Ng6 Qc2 Qbb4 Rf1 a1B Rf3 Bf6 Qb1 Qb2 Qa2 Bd7 Bg4 e6 Bf5 Bfd6 f8Q Be8 Nge7 Bf7 Qfe8 Bg8 Qf7 Qa6 Kc4 Bb8 Qa1 Qa5 Qa2 Qa4+
B4R2/K1R1Nn2/P1qk1Br1/2bNb1n1/8/Q1n2QQp/b1nbB1rn/3q3N w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 b5 Kd4 c5+ Ke3 h5 d4 e5 f4 c4 g4 h3 a4 h4 d6 c3 g5 h2 g6 b3 f5 b2 a5 c2 d5 h3 g7 b4 f6 b3 f7 Nf6 g8B Bg7 f8Q Nc6 a6 Nh7 Ne2 Ng5 Qf3 Rh6 Qd3 Rg6 Rg1 h1Q Nd2 b1N Bb2 c1B Nc3 Na3 Be2 Qe8 Rf1 Nd8 Rf2 Qd1 Qg3 Bh8 Rf8 Ndf7 Ra2 Rb8 Ba1 Rb6 Rc2 b2 Qf3 b1N Bb2 Kd8 d7 Kc7 d8N Kd6 Nc6 Be6 Ne7 Qc6 Ba1 Rb2 Bh7 Kd7 d6 Ba2 Ncd5 Nc3 Qg3 Ke6 d7 Kd6 d8Q+ Qd7 Qe8 Qc6 Qa8 Bg7 Kf2 Bh8 Nf1 Bd2 Rc1 Nc2 Qb7 Bf6 Qb3 Bg7 Qgf3 Bh8 Ng3 Bf6 Nh1 e3+ Kg3 e4 Kf4 Be5+ Kf5 Ne1 Qg3 Nef3 Qa3+ Qc5 Bg8 Nh2 Qf3 Nd8 Be6 Ndf7 Bc8 Rc2 Bb7 Rb2 Ba8 Rc2 Bf1 e2 Qde3 e1N Be2 Rb2 Qef2 e3 Q2g3 Na4 Rc3 Nc2 Rc4 Bb4 Rc3 Qb6 Rcc8 Qc6 Rc7 Rb1 Bc3 Rb2 Bd4 Bf4 Bf6 Be5 Bd3 e2 Bb5 e1B Be2 Ne6 Ke4 Bd2 Kd3 Bb1 Ke4 Neg5+ Kd3 Qb7 Kc4 Ba2+ Qab3 Qc8 Kb5 Nc3+ Kb6 Qe8 Kb7 Qc6+ Ka7 Bc1 Bh8 Na1 Bd3 Rg2 Be2 Bd2 Bf6 Nc2 Qa3 Bc5+
KQ4N1/1r4Np/1brQbN2/4RQ2/1qr1r3/2Bb1Bk1/nnP1Rq1r/1B2b3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 b4 f5 e4+ f3 e5 a5 e6 d3 b6 h3 g3 a4 b5 h2 e7 a3 e8Q d2 b7 f4 b6 a2 Bc4 Nf6+ Ke5 d5 Qb5 d4 Qc5 d3 Qd4 Nh5 Nc3 Qh4 Kd5 Bc5 Nh3 Nc6 b8N Ra4 b7 Bb6 Qf1 d1R Bb2 f2 Ne4 f3 Nf4 d2 Ne6 Re1 Bc3 d1R Be2 Rc4 Nd7 Rb1 b8Q Nf4+ Kd6 Rb5 Ng7 Nd3 Rg1 h1R Rg2 Ncb4 Ndf6+ Kh3 g4 Be6 g5 Nb2 g6 Rhc8 Ng8 Rh2 Nef6 Qg4 Rd1 a1B Qc5 Qe4 Rd5 Na2 Re5 Qb7 Bd1 Ree4 Qd3 f1B Re2 Kg3 Qa3 Rf4 Qf5 f2 Qc5 Rce4 Qd5 Rcc4 Qc5 Qe7+ Kc6 Qf8 Kb7 Rb3 Re1 Bd3 Re2 f1Q Qcd6 Rc6 Ka8 Qg2 Rf2 Rec4 Bf3 Rfe4 Re2 Qf2 Nge8 Rbb4 g7 Rcd4 Nh6 Qe7 g8B Rdc4 Ng7 Rb5 Qd7 Qb4 Qdd6 Be3 Bf7 Rb7 Nhg8 Bb6 Qg6+ Bg4 Re1 Nd1 Be8 Nc1 Bb2 Rc3 Re2 R3c5 Bd4 Bc3 Bf7 Be1 Bc3 Nb2 Ba2 Rcc4 Bb1 Na2 Qh5 Bd7 Qf5 Be6
1bN1n1R1/2b3P1/1N3qB1/Bbr2p2/1Kqk1NBr/R3nbQ1/R2r3Q/2r2b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 c5 d3 Kc3 a4 c6 h3 b6 d2 b7 f3 b5 d4+ Kc4 d3 c7 f2 g7 h4 b6 h2 Kc3 a3 Ra2 h3 Rc2 a2 Qf3 d1Q Ne2 a1B+ Kb3 d2 Bg2 f1B Qh5 Nh6 Qg5 Ng4 Nbc3 Qf6 Na4 Nd7 b8R Bd6 b7 Ne3 Bf3 Rh4 Nf4 Ra5 Bg4 Qe2 Nb6 d1R Ra2 Rc5 Bd2 Kd4 Ba5 Rd2 e5 Qc4+ Ka3 Bc3 e6 Ba1 Rg1 h1B e7 h2 e8B Bf3 Rg3 h1R Bg6 Rg1 Ra8 Bc3 b8Q Ba6 c8N Bb5 Qh5 Bc7 Qh6 Qfe6 Qh8 Nf6 Qh6 Ne8 Qh5 Rhh1 Qh2 Qf6 Rh3 Ba1 Rh8 Bc3 Rg8 Ba1 Qg3 Rh4 Qh2 Ke4 Qg3 Bae5 Qh2 Kd4 Ra7 Qcf7 Kb4 Q7e6 Qg3 Bed6 Ra6 Qc4+ Ka3 Rc2 Be1 Bd3 Qh2 Bd8 Nh5 Rf2 Ra4 Rh1 Ba5 Rc1 Qc7 Bf1 Qb8 B6e7 Qbg3 Bd6 Nf4 Re2 Rb4 Rg2 Rb3 Bb8 Rc3 Rd2 Rb3 Qcf7 Kb4 Bdc7 Rba3 Qc4+
B4k2/1r1P3r/N2r4/bN2n1Kb/bnq3QR/2B1N2q/R1QBRbp1/1b4r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 d4 c5 b4 a5 e4 f5 h4 a4 d5 g3+ Kf3 g2 h5 g4+ Ke2 a3 d6 a2 b6 g3 Kf3 c3 e5 c4 h6 c2 h7 c3 e6 Nc6 e7 Qd7 b5 Rb8 b7 Ne5+ Ke2 f3+ Ke3 f4+ Ke4 f2 b6 f3 Kf4 Nf6 Bb2 c1B+ Qd2 c2 Na3 Qh3 Kg5 Bg4 Nc4 Nd5 Bd3 f1B Ne3 f2 Ne2 g1R Bc3 g2 Be4 Nb4 Nd4 Bd3 Nb5 f1B d7+ Kf7 e8R Bh5 Qd1 Bc5 Qg4 Bd2 Bc6 Be1 Bd2 c1Q Re6 Bb1 Rh2 Rhf8 h8B Qc4 Bf6 Rh8 Bf3 Rbd8 b8Q Rh7 b7 Kf8 Qc7 Rb8 Qc6 Be2 Qce4 Bd1 Qc2 Bf2 Bh8 Bb6 Bd5 Rc8 b8N Rc7 Na6 Ba5 Ba8 Rb7 Rh1 Ned3 Bhc3 Ne5 Qd3 Ba4 Qc2 Qg3 Rh4 Rd1 Bc1 Rd6 B1d2 Qh3 Nf5 Ng6 Re2 Ne5 Ne3 Rd4 Na7 Rd6 Qd1 Bbg6 Nb5 Be4 Rb1 a1R Rb2 Rc1 Ra2 Bb1 Qc2 Rg1
4n1b1/1QNP4/nB3RnN/Nnbbr1B1/1k1qbn1r/1p1B1Q2/1R1q4/2R1K3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 e4 Kd6 a4 f5 g4 c5 a5 h5 a6 b5 g5 c4 a7 h3 g6 f3 g7 c3 Bg5 b3 Qc2 f4 Qd2 h4 Bd3 h2 Ra5 b4 Qe3 h3 Bb5 b2 Qe2 c2 Ra4 c1Q+ Kf2 b3 Bd7 Na6 Bc6 Nf6 g8N Be6 Nd2 b1N Bb5 Nc3 Nh6 Bg8 Ra2 Ne8 Bd3 Nb5 Rb2 Qc2 Kf1 f2 Qf3 Qc1+ Ke2 f1N Kf2 Be7 Ne2 Ne3 Nc3 Ng2 Rd1 Nh4 Ke1 Rc8 a8Q h1B Qb7 Qc2 Rc1 h2 Ra2 Rc7 Rb2 Ng6 e5+ Kd7 e6+ Kd6 Ne2 Rc5 Nc3 Bf8 e7 Rh7 Qg4 Be4 Qe2 h1B Qf3 Ng7 e8R Rh8 Re7 Ne8 Rf7 Qd7 Ng4 Rh4 Nh6 Bg2 Qe3 f3 Rf6+ Ke7 Nc4 Bh1 Kf1 f2 Na5 Qd2 Qf3 Rc8 Qa7 Rc5 Qa8 Qd8 d6+ Kd7 Qb8 Re5 Nd5 Be7 Nc7 Bf8 Nc4 Kc6 d5+ Kc5 d7 Kb4 Na5 Bc5 d6 Bed5 Qb7 Be4 Bb1 Qd4 Ke2 f1N Bd3 Ne3 Kf2 Nd5+ Ke1 Qc8 d8B Ndf4 d7 Bed5+ Qe3 Bhe4 Qf3 Qb8 Na8 Qd6 Bb6 Qe6 Nc7 Qg4 Qf2 Qg2 Qf3 Qd2+
1rB1bq2/5q2/K7/QRQ2r1B/1R3b1B/1pnqr1bR/rPkNbN1Q/1n6 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 cxd5 Na6 Ra4 Nb4 a6 Nxa6 Ra5 Nb4 Ra1 Na2 d4 Kd7 Kd2 Kd6 Kd3 a5 Kc4 h5 Kb5 f5 e4 c5 g4 h3 g5 h2 g6 a4 g7 f3 Be2 a3 Bd3 h4 Nd2 c4 Nh3 f4 Qb3 c3 Nb1 f2 Bc2 f1B+ Bd3 c2 Qc3 f3 Nf4 h3 Nh5 f2 Qa5 Nc3+ Kc4 b5+ Kb4 a2 Nf6 Rh5 Nd2 Ne7 g8Q Rb8 Qh8 Nb1 Ng4 Rf5 Qh7 Be2 e5+ Kd7 e6+ Kd6 Qh8 f1Q Nf2 Bd7 Qa7 Qe8 Ka5 b4 Ba6 b3 Bc8 Qf7 Qh5 Be8 Qh6 Ng8 e7+ Nf6 Qh4 Ne4 Qb6+ Bc6 e8B Nec3 Qb5 Bh6 Ka6 Bf4 Qh7 Qf8 Bh5 Be8 Qc4 Qf7 Qb5 Bg3 Qc4 Ke7 d6+ Kf6 d5 Ke5 d7 Qf8 Qb5 Kd4 d8R Ke3 d6 Qd1 Re1 h1Q d7 Qd5 Rh1 h2 Qh8 Qdf7 Qh7 Bg4 Qc5+ Ke2 Nf3 Qdd5 Bg5 c1B Bh4 Bcf4 Nd2 Qf3 Nh3 Kd3 Nf2+ Kc2 Qh6 Na3 Rae1 a1R Re4 Ra2 Rb4 Qd3+ Rb5 Be2 Qh7 Q7e7 Qh8 Bg6 Re8 Qeg7 d8Q Nb1+ Qa5 Bf7 Rd8 Be8 Rd4 Qge7 Rb4 Qef7 Rd1 h1R Qh6 Rh3 Rh1 Bd6 Qh7 Bgf4 Qh8 Rf3 Rh3 Re3 Qhe5 Bg5 Qh2 Bgf4 Re4 Bg3 Rb4 Bdf4
Bn3qrk/b3Q1q1/4Bb1q/5q2/R1Qb2p1/Kn1R4/1P4Qn/N2rNbBN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 f4 e5 c4 a5 Kc2 g5 Kb3 Kg7 h4 d5 b6 e3 c5 g3 c6 d3 f5 a4+ Ka2 d4 b7 d2 c7 d3 h5 g2 Qc2 d1Q Qc3 d2 Qb4 e4 Rh2 a3 Bd3 e2 Nc3 e1B Rh3 e3 Qc4 e2 Ne4 Bh4 Ng3 e1Q Nh1 Qe3 Nf3 g1B Ne1 Nf6 Be4 Rg8 h6+ Kh8 h7 Ng4 f6 Qdf3 f7 Bg7 f8Q d1Q Qe7 Bd4 Rg3 Be6 c8B Nh2 Bd5 Qe5 Be3 Bh3 Bce6 g4 Bf2 Qfe4 Rd3 Qc1 Kb3 a2 Kb4 Ba7 Ka3 Qh6 Bc5 Na6 b8N Bd4 Nc6 Bf1 Na5 Qdf8 Nb3 Rd8 Ba8 Q4f5 Bb6 Nb8 Bc5 Bc3 Bg1 Bhf2 Rb1 Rd5 Na1 Qeg7 Rbd1 Bf6 Rd4 Re5 R1d3 Re2 Rf4 B2d4 Re4 Rd2 Rf4 Rd1 Re4 Qgf7 Rf4 Kg7 h8Q+ Kg6 Rf2 Qd2 Nac2 a1N Qh3 Kg7 Qg2 Bde5 Qb3 Qh6 Rf4 Kh8 Ra4 Bed4 Qc4 Nb3 Na1 Q7g7
1Nb1q2Q/RQrN2b1/n3q3/rrb1B1b1/2RP3q/pn6/k1N5/B1qK1R1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Ke7 g4 Kd6 e4 h5 b4 c5 g5 f5 b6 a5 b7 a4 g6 h3 b5 h4 b6 c3 g7 c4 e5+ Kd5 e6 h2 e7 a3 e8Q c2 Nd2 h3 Nb3 c3 Qe7 f3 Ba6 f4 Be2 f2+ Kf1 Nf6 g8N Ne4 Qb4 Rh5 Qa5+ Nc5 Bd3 Qe8 Be4+ Kc4 Ke2 f1R Bb2 c1B Ne7 c2 Nc6 Rf3 Qde1 Rc3 Qh4 f3+ Ke1 Be3 Rc1 Beh6 Na1 Bhg7 Qa7 f2+ Ke2 Rd5 Qh8 f1Q+ Kd2 Qf6 Nf3 Qfe6 Nfe5+ Kb5 Rhd1 h1Q Nd7 Kc4 Bf3 h2 Be4 Nba6 b8B Nc7 b7 Rg5 Qb6 Ra5 Rg1 Rd5 Qa7 N7a6 Be5 Be7 b8R Bef8 Ra8 Be7 Rce1 c1B+ Ke2 Bf4 Ncb8 Bfg5 Qb7 Rc1 Rg2 Qg1 Rd1 h1Q Ra7 Qh4 Rh2 Bef8 Bh1 Bfe7 Rf2 Rc3 Rd3 Qc1 Nc2 Bef8 Rf1 Bd6 Qa8 Kb3 Qb7+ Ka2 Ba1 Nb3 Rdf3 Rcc5 Rc3 Rc7 Rc6 Rdb5 Rc4 Qcf4 Kd1 Bc5 Qf3 Qe3 Qb7 Qc1+
1Rq1q1N1/NN2brB1/kb5n/4bQ2/1QPr3r/2rRn2p/bBB3Q1/n6K w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 f4 h5 Kf2 d5 g4 Kd7 Kg2 Kc7 b6+ Kb7 c3 e5 b5 a4 f5 a3 f6 d3 g5 a2 f7 d4 g6 h3+ Kh2 d2 g7 d3 Qe2 d1N Qd2 e3 Qe1 h4 Ba3 e2 Bb2 d2 Qf2 e1B Bc1 e4 Na3 e3 Rb1 a1B Bd3 e2 Qg2+ Nc6 Nc4 Be7 f8Q Ra7 Nf3 Ne3 Qf5 d1R Bb2 Na5 Bc2 Nh6 g8N Bf2 Nfe5+ Rd5 Rhc1 e1Q Rd1 Be6 Rd3 Qc8 Nc6 Bg1+ Kh1 h2 Qfg6 Rd4 Qf5 Nb3 Nd6+ Ka8 Nb7 Rh7 Qgf2 Ra3 Qg2 Rf7 Na7 Kb8 Nc5 Bd5 b7 Kc7 b8B+ Kb6 Bf4 Ka5 b6 Be6 Nb7+ Ka6 Bc1 Bb2 Bd6 Na1 Be5 Ba2 c4 Rc3 Bg7 Qe2 Na5 Qh5 b7 Qg6 b8Q Qgc6 Bh8 Q6e8 Nb7 Re4 Na5 Nd1 Rh3 Rd3 Bg7 Be5 Rf3 Rc3 Rd3 Bgc5 Rb5 Bcd4 Bb2 Ne3 Rb7 Rg4 Qd6+ Bb6 Rb8 Rd4 Qb4 Nd5 Nb7 Ne3 Qd2 Nd5 Kg2 h1R Qdg5 Rh2+ Kg1 Ne3 Qgg4 Rg2+ Kh1 h3 Qe2 Rgg4 Qg2 Rh4
2Q1N3/3bk3/K2n2B1/1QQ5/qPp1r3/B1br2nq/N1RRr1NR/r2n1nb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 a5 Ke2 c5 d4 f5 b4 h5 g4 f3+ Kd2 h3 Kc3 f2 e5 a4 d5 h4 g5 f4 e6 f3 b6 h2 g6 h3 b7 a3 d6 a2 d7+ Ke7 g7 Nh6 g8R Nf7 Qd3 Rh4 Nd2 Na6 b8N Re4 Qe2 Bg7+ Kc2 c3 Kb3 c4+ Ka4 c2 Kb5 Nc5 Qe3 Bc3 Ba3 c1B Nb3 Nd3 Na6 Nb2 Nc7 Nd1 Bd3 f1R Ne8 f2 Ne2 Re1 Rg2 f1N Nf4 Re2 Rf2 Qc7 Ng2 Qg3 Qc5+ Nd6+ Kb6 Bh6 Rc1 a1R Rc2 Be3 Nc1 Ra5 Na2 Ra8 Rg1 h1Q Rd2 Qhh2 Rh1 Qf3 Bb1 Qhg3 Bd3 h2 Bc2 Qh3 d8Q+ Kf8 Bd3 Bd7 Qc8 Ke7 Rc2 Rb8+ Ka6 Rb7 Q8c6 Rb8 Q6b5 Rd8 Rd2 Rh4 Bg6 Re4 Rg1 h1N Rc2 Re1 Rfd2 Nhg3 Rh1 Bg1 Rh2 R1e2 Ng7 Kf6 e7 Qe3 e8Q Qf3 Qh8 Ke7 Ne8 Qd3 Rc1 Qb1 Rcc2 Qb3 Nf6 Rf8 Ne8 Rf3 Qc8 Rfe3 Qd4 Rd3 Qdc5 Qa4+
N1qQ2B1/b1B4b/N4N2/3KRP2/qr1R3p/2Bbq1Qn/2b1R2q/rk3nn1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 h3 b4 Kf7 c4 Ke6 g4 Ke5 b6 a5 b7 h5 f3 d5 c5 e3+ Kd3 h4 c6 e2 g5 e1N+ Ke2 d3+ Ke3 d2 b5 d4+ Ke2 d3+ Ke3 h2 c7 a4 b6 a3 g6 a2 g7 Na6 b8Q Nc5 b7 Nh6 g8N Bf5 Qe2 d1B Qa7 d2 c8R Nf7 Rb8 Ng5 Qd3 Nh3 Ba3 Ne4 Qb6 Ng3 Nf6 Be2 Bb4 d1B Na3 Bh7 Nb5 e6 Rc8 Bc2 Rd1 a1Q b8B+ Qc7 Re8 Bc5+ Kd2 Kf4 Bc3 e5 Qa5 e4 Re5 Qc6 Nc7 Ra6 Na8 Ba7 Bd6 Rb8 Qd8 Qc8 Bc7 Qa2 Bg2 Qc4 Bf1 Ra1 Bg2 Qa4 Bf1 Nf2 Bh3 Bf1 Be6 Nh3 Bg8 Rb2 B3a5 e3+ Kc3 e2 Bb4 Rc1 Kc4 Ra1 Kd5 Rbb1 Bc3 Rb7 Qg6 Rb3 Ne4 Ke3 f4 Nf3 f5 e1Q Rd4 Bfd3 Ne2 Rb2 Nf4 Rb4 Rf1 h1Q Nh5 Qh2 Rf2 Nf1 Nhf6 Nfg1 Rg2 Qf2 Qg3+ Ke2 Nc5+ Kd1 Na6 Qe3 Rf2 Kc1 Re2 Kb1
Rq5k/1Qq1NR1r/3bn1K1/n2pPb1B/1NQ2b2/1Q1r3n/1b4rB/RrN5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 c4 f5 b4 Kf7 h4 a5 e4 g5 h5 Kg7 c5 a4 c6 g3+ Kf3 g2 b6 a3 b5 a2 e5 d3 b7 d2 c7 g4+ Ke2 f3+ Ke3 f4+ Kd4 g3 b6 f2 Rh3 f3 Rh2 Nf6 Rh1 Bg4 c8Q Bd6 Ke3 Ne4 Kf4 Rh7 h6+ Kh8 Na3 Ng5 Be2 f1Q Qb3 d1R Nc2 f2 Qcc4 Nc6 b8R Rd3 b7 Na5 Nb4 Qc8 Be3 Qb1 Bf3 f1R Ne2 g1N Nc1 Ra6 Ra8 g2 b8Q Raa7 Bf2 Rag7 Bg3 Qd8 Bh2 N1h3+ Kg3 g1B Kh4 Qb2 Qb7 Be3 Rg1 Re1 Rf1 Bf4 Be2 Rg8 Bd1 Qc7 Be2 Bd7 Kh5 Ne6 Rf2 Rg1 Bg4 Rb8 Kg6 Rg2 Rf3 Neg5 Bh5 Bg4 Rb1 a1B Rf1 Rf7 h7 Ne6 Rf2 Qa3 Rf1 Bb2 Ra1 Qa4 Rf2 Qe8 Rf1 Bd2 Rf5 Bf4 Rf6 Rd7+ Rf7 Qed8 Qa7 Rb6 Qb7 Qdb8 Qa2 Qf8 Na6 Bc3 Rf6 Rb1 Nb4 Bb2 Qa4 Qfb8 Qab3 Be2+ Kf5 Kg7 h8N Kg8 Ng6 Rh7 Ne7+ Kh8 Rf7 Bg4+ Kg6 Bf5+
2b2n2/5Rqb/n1R3Rr/p1b1NQ1q/B2KQQ2/N4q1P/1B1n1k1r/1N1b2q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Kf6 e4 Kg5 c4 Kh4 e5 a5 e6 d5 b6 g5 b5 f5 b7 f3 b6 g3+ Ke1 f4 Kd2 g4 Kd3 g2 c5 f2 c6 g3 e7 f3 e8N Bc5 c7 Qf6 Bf4 Ne7 Be5 Na6 b8R Rh6 b7 Ng6 Nd2 Nf8 Rc1 Qf7 Nb1 Qh5 Be2 f1Q Qa4 f2 Nf3+ Kh3 Qc6 g1Q Nd6 Kg2 Nb5 Ra7 N5a3 Ra8 Kd2 d3 Kc3 d2 Bb5 d1B Ba4 Bc2 h3 Bh7 Rc2 Qd1 Rc1 f1N Bh8 Qe2 Ne5 Nd2 Rf1 Qeg4 Rf7 Qf1 Bf6 Qg7 Rg1+ Kf2 Qe8 g2 Qc6 Bd7 Rc8 Rb8 Qe6 Qfd1 Qg4 Bdf5 Qe4 d4+ Kd3 Nf1+ Kc4 d3 Kd5 d2 Kc4 Ra8 b8Q Qdf3 Qb4 d1B Qb8 Bd6 Kd4 Nd2 Qb4 Rb8 Qf4 Qh8 Qb7 Bb4 Qbe4 Bc5+ Kd5 Be7 Nc6 Rb2 Be5 Rc2 Bb2 Nc4 Ne5 Qg7 Kd4 Bd7 Qa8 Ke2 Rb8 Bdf5 c8Q Be6 Rb6 Bg4 Qcb7 Bc8 Qd7 Bd6 Qdf5 Be7 Rh1 Bd6 Rh2 Ke1 Qd5 g1Q+ Rf2 Re2 Rc6 Nd2 Qde4 Be7 Qfe3 Bd6 Rg2 Kf1 Rg6 Rh2 Kd5 Bb4 Qef4 Kf2 Kd4 Bc5+
Kb2Q1n1/1n3q1Q/3q1pb1/r2NrbRb/N1rB4/1B1k3r/RP1N3Q/5n1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 Kf5 c4 a5 e3 f3 b6 d3 b7 a4 g3 h3 c5 a3 c6 d2 c7 h4 Ba6 f6 Nc3 f2 Nge2 f1N Ra2 h2 Qb3 d1B Nf4 h3 Rg1 h1B+ Ne4 h2 Qc2 Nc6 b8Q Na5 Bb7 Qe8 Bd2 d6 Bc3 Rh3 Bd4 Bh5 Qd3 Bd7 c8N B1f3 Bc6 h1R Nb6 Bg6 Na4 Nb7 Qb1 Bfh5 Nd2+ Kg5 g4 Bdf5 Qc7 Rc8 e4 Qd7 e5 Qf7+ e6 Re3 Ra1 Rhh3 Ra2 Be7 Qe4 Bd8 Qb8 Bc7 Qh1 Re1 Qh2 Ree3 Qa7 Bb8 Rg3 Qd7 e7 Re5+ Kc4 d5+ Kb5 Qe6 Ka6 Qf7 e8Q Rc7 Bg1 d4 Bh1 d3 Bd4 Rc4 Nd5 Kh6 g5+ Kh7 Ne4 d2 Rg4 d1Q Nd2 Bd3 Kb6 Bgf5 g6+ Kg7 Ra1 a2 Rg5 Kh6 g7 Bfg6 Rc1 a1R Rc3 Bdf5 Ra3 Qf3 Ra2 Qa3 Ka6 Qd6+ Qb6 Bc7 Ka7 Bb8+ Ka8 Rae1 Ne7 Ra5+ Qa7 Ree5 Rg2 Bfg4 Nd5 Kg5 Rg1 Ne7 g8B Kf5 Nf3 Ke4 Nd2+ Kd3 Rg2 Rb5 Rg1 B4f5 Rg5 Na5 Qad7 Nb7 Qc7 Qf8 Be6 Ng8 Qh7 Qf7 Ndc3 Rc6 Bb3 Rc4 Nd5 Ra5+
BQnqN1Q1/Nb6/2n1npB1/q3B3/qr1b2q1/6R1/Pk1b1QnK/N1rR4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 e4 Kf6 d4 h5 g4 b5 Kg2 c5 d6 f3+ Kh3 c4 d5 Ke5 d7 b3 d6 c3 g5 c2 g6 f2 g7 b4 Qe2 Kd4 e5 b2 e6 f6 e7 b3 e8N Nc6 Bg5 c1B Qe1 Bb7 Bd3 f1N Qe6 Rc8 Nc3 b1N Bf4 b2 Qf7 Na3 Qb3 b1Q Kg2 h3+ Kf3 h2 Kg2 h4 Bg5 Qc2+ Kh3 Nb5 Bg6 Ne3 Bf4 Nc7 Qb2 Qa4 Qf2 Nge7 g8B Bd2 Bd5 Ne6 Rd1 Rb8 Bg2 Nc8 Nge2+ Kc4 Rhg1 h1Q+ Bh2 Be7 B2e4 Qf3+ Rg3 Ng2 Nd4 Qh5 Nb3 Qha5 Na1 Rh5 Rg1 Rc5 Nb5 Kb4 Bf3 Rc1 Na7 Kc3 Rd1 Kb2 Bd5 Bf8 Bde4 Bh6 Bf3 Be3 Bd5 Qdb6 d8Q Bd4 d7 Qbb4 Qc7 Qe7 d8Q Qg7 Kg4 h3 Qf7 Qf8 Qg8 Qd6 Qc7 Qd8 Qd6 Ba6 Bde4 Rb4 Qb8 Bb7 Ra3 Ne1 Be5 h2 Kg3 h1Q Bg2 Qf1 Kh2 Qe2 Rg3 Qg4 Bd5 Ng2 Bf3 Ba6 Bd5 N6e7 Bb7 Nc6 Ba8 Bb7
R1q4q/1n2bB2/1Q3p1r/rNB1Q3/K2PnNbk/R2nN1q1/4Brr1/4R1q1 w - - 0 1 illegal: No possible last move, all moves rejected
rB2b1Q1/R1q1nQRN/2Pk1br1/1p2n3/bNn4q/3B2KN/1Br5/n2r3Q w - - 0 1 illegal: No possible last move
5nB1/bRQB2Q1/1PqB4/2N1Kb1b/2b2r1r/2Q3q1/1nN3pN/rrR1q1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 Kh4 c4 f5+ Ke5 g5 e4 d5 b6 a5 h3 Kg3 c5 Kf2 b7 d3 b5 d2 h4 d4 h5 d3 c6 g3 h6 g2 c7 f3 h7 g4 Ra2 f4 Bb2 a4 Rh6 a3 Rh5 g3 Qa4 d1Q Rh3 d2 Qb4 Nf6 Qa4 Qe1 Be2 d1B Rh6 Ne8 Qb4 Ra4 Ra1 a2 Qc3 Bc5 Ba3 Qd7 Rb6 Nd6 Bc4 Qc6 Bg8 Bf5 c8Q Kf1 Qd8 f2 Qc7 Bh5 Nf3 g1Q Nh2+ Kg2 Bb4 f1B Na3 f3 Nc2 f2 Rc1 Bc4 Ba3 f1R Bb4 Na6 b8N a1R Nd7 Nb8 Rb7 Ba7 b6 Rb1 Nc5 Raa1 Kf6 Rf2 e5 Rf4 e6 Kf2 e7 Nd7+ Kg7 g2 e8B Nf8 Kf6 Qe3 Ba3 Qge1 Bd7 Qg3 Bb4 Kg1 Ba3 Ne4+ Ke5 Nf2+ Ne4 Bce2 Bd6 Nd1 Nc5 Nb2 Ba2 Rg8 h8Q Rgg4 Bg8 Rh4 Qg7 Bc4+
8/2Bq2rB/pN1r4/1N2q3/Qq1R1rBQ/b1NbqRn1/1PR3nr/3K2kb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 Ke7 e4 Kd6 g4 Kc5 e5 f5 g5 h5 b6 d5 b7 d3 g6 Kd4 c5 d2+ Ke2 h3 c6 h2 e6 h4 e7 a6 e8B h3 g7 f3+ Kf2 f4 c7 Qd7 Bf7 Ne7 g8R Ra7 Rg5 Nf5 Be6 Ne3 Bb5 Ba3 Rg8 Nc6 b8N Ng2 Qf1 d1R Rg5 Ne7 Bg4 Nf5 Rg7 Ng3 Qe2 Qd6 Qe1 Bf5 c8Q Bd3 Be6 Qb4 Rg5 Rg7 Be3+ Ke4 Qc7 d4 Ne2 Rh6 Rg1 h1Q Bg4 h2 Rc5 Rd6 Qa5 Rd2 Qa4 Rc2 Qc3 Rd2 Rc1 Qd1 Rg5 h1B Nd7 Qdb3 Rf5 Qe6 Qc4 Qe5 Nb6 Rc2 Kg1 Rd2 Rc2 f2+ Kh2 f3 Bf4 f1R Rf8 Rf2 Kg1 Qh5 Be5 Ke3 Nbc3 Qg5 Rd1 Rf1+ Kh2 Kf2 Bc6 Qf4 Nb5 Qe3 Nec3 Re2 Kh3 Kg1 Be4 f2 Bh7 Re6 Rc8 Bg6 Re8 d3 Bf4 d2 Bf5 Qf3 Nd7 Nh4 Bc7 Qe4 Rg8 Qe5 Kg4 Rb6 Rf8 Rf6 Rdc1 d1Q Nb6 Qd7 Rd1 Rd6 Be6 Red2 Qf4 Re2 Rd4 Bd3+ Qg5 Ra1 Bef5 f1Q Rf7 Rh2 Be6 Ng6 Qh4 Qfe1 Rf6 Qd2 Rff4 Rf1 Rf2 Rg2 Kf3 Qdg5 Bg4 Nf4 Be4 Qh6 Ke3 Rh2 Kd2 Qhg5 Bh7 Ng2+ Rff4 Rf2+ Kd1 Qh6 Rf8 Qhe3 Rf5 Rf4 Rf6 Re4 Rf3 Rf4
n1b1N2k/1r3P2/r1Qq1rQq/Rb6/rp1b2nQ/5B2/B1KbN3/R1RqB3 w - - 0 1 illegal: No possible last move
nr2B2B/K3P1n1/1Nbq4/2N4q/1Qn2B2/2q1RRbR/1QnkNbbp/6r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 Kb5 f5 c4 d5 e3 f3 g5 f2 b7 d3 g6 h3 g7 d4 c5 h4 c6 f4 c7 d2 Kb6 d3 b5 a4 Na3 h2 Bg2+ f3 Bb2 f1N Nb1 h3 Qe1 d1Q Ba3 d2 Be7 Kd3 e4 f2 e5 a3 e6 a2 Bf6 Qd6+ Bc6 Qb3 Ne2 d1Q Bb2 Bd7 c8N Ne3 Nbc3 f1N Na4 Nh6 g8Q Na6 b8B Nc2 Kb7 Nfe3 b6 Qc3 Ba3 Nc4 Qg2 Rg8 Bb2 Nf5 Nc5+ Ke3 Bc7 Rb8+ Ka7 Ng7 b7 Q1d5 Nb6 Qh5 Qh4 Kd2 Raf1 a1B Rf3 Be7 Qhg4 Bh4 e7 Bg3 Re1 h1B Qf4+ N4e3 Qb4 h2 Ba4 Bh3 Be8 Nc4 Qf2 Bd7 Qg2 Bc6 Qf2 Rd8 b8R Bg2 Ra8 Be5 Rh3 Rb8 Qf6 Bf4 Rf1 Bg3 Rf3 Qe6 Be5 Qd6 Re3 Nc7 Bf4 Rc8 Rb8 Na8 Rb7 Rb8 Rd7 Qdd5 Rd6 Qd3 Rde6 Qd6 Rf3+ Ke1 Ree3 Kd2 Qb5 Qb3 Bbe5 Bd4 Qh4 Qc3 Qb2 Nf5 Bh8 Ng7 Rd3+ Ke1 Qg4 Bdf2 Rde3 Kd2 Qd7 Bd5 Qdb5 Bc6 Q5b4 Rf8 Bg5 Be1 Rf1 Rf3 Bf4 Rf2 Nc1 Re2 Rff3 Bef2 N5d3 Re1 Ne2 Rc1 Nc5 Rg1
N2rbn2/1QqBPQ2/1Nn2Rr1/1k4b1/2r2BQ1/2pb4/1BN1K3/Rnr3qb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 f5 d4 a5 d5 h5 g5 h3 d6 a4 b6 Kc6 g6 h4 g7 c3 e5 h2 d7 c4 e6 f3 b7 h3 e7 c2 Bd2 c1R Bd3 f4 Bc3 a3 Kf2 a2 Ke1 f2+ Ke2 f1N Nf3 Qc7 d8B Rh4 Ne1 Kb5 Be5 Nd2 Bf5 Nf6 g8Q Nfd7 Qf7 Bh6 Nc2 Nf8 Bb2 c3 Rf1 h1Q Bd7+ Nc6 b8N h2 Na6 Bg5 Rf3 Qg1 Nba3+ Kb6 b5 h1B Rf2 Nb1 Qd4+ Ka5 b6 Rb8 Nc4+ Kb5 b7 f3+ Kd3 Rh6 Qg4 Rg6 Nb6 Ra8 Rf1 f2 b8Q Bb7 Ke2 Bc8 Bf5 Bd7 Qb7 Be8 Bd7 Rb8 Rd1 Rc8 Rd6 Rd1 Rf6 Rd4 Bf5 Rc4 Bd7 f1B+ Kd1 Qb8 Bc7 Rd8 Bf4 Qc7 Nc5 Bfg2+ Ke2 Be4 Nca4 Nd2 Re1 a1R Rc1 Nb1 Na8+ Ka5 N4b6 Kb5 Re1 Bd3+ Kd1 Na3+ Bfc1 Bde4 Ke2 Bf5 Bf4 Bfe4 Rd1 Bf5 Rd3 Rf1 Rd1 Bfe4 Rb1 Rc1 Ra1 Nb1 Qg3 Bf5 Qg4 Bd3+
r5Qq/1q1p2Nq/2bk1K1n/1Br4n/B3r2b/B2NR2P/3NQb1b/RQ3q2 w - - 0 1 illegal: No possible last move
bRQ5/k1p1RrQ1/r3bq2/5n1r/QbqRN1BN/2n1PKb1/3r4/3nB1N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 a5 b4 f5 g4 h5 g5 a4 b6 Kc6 b5+ Kb7 e3 f3 d5 c3 g6 c2 g7 a3 d6 a2 d7 f4 Qe2 h3 Qc4 h4 Qd3 h2 Qg6 h3 Bb2 c1R Qd3 Rc2+ Nd2 Qf6 d8R Ra6 Bg2 Ne7 g8Q Nbc6 Qgb3 Nd4 Qdc3 Rh5 Qa4 Nef5 Rb1 Ne2 Ne4 a1B Rd4 Bb4 Ba3 Kb8 b7 Ka7 b8N Be6 Nd7 Rd2 Nf8 Bb2 Ng6 Ba1 Kf1 f2 Bf3 Bb2 Bg4 Ba1 Qc6 Nc3 Qd7 Bb2 Nh4 Ba1 Ne2 Bb2 Rg1 h1B Qg7 h2 Rg3 Bf3 Ng1 h1N b6+ Ka8 b7+ Ka7 Ng5 Be4 Rf3 Bc6 Kg2 f1R+ Ne2 Ba1 Ne4 Nf2 Ng1 Nfd1+ Rf2 Bc5 Bb4 f3+ Kh3 Bd6 Rh2 f2 Kg2 Bg3 Kf3 Bb2 Rh1 Ba3 Rh3 Kb6 b8Q+ Bb7 Qbf8 Ka7 Qc8 Ba8 Ba5 Bad6 Rb8 Bb4 Rh2 Re1 Rg2 f1Q+ Rf2 Qc4 Rh2 Rb2 Rhd2 Rc2 Rd7 Re2 R2d4 Rcd2 Rf7 Rh2 Re7 Rh7 Qh6 Rf7 Qg7 Rh1 Qa1 Rd3 Red7 Bc5 Re7 Na2 Ng6 Rh5 Be1 Rd2 Nh4 Nac3 Qa4 Bb4
5b1K/NP2pqn1/2n1nQ2/2rBr1R1/1b1BN3/k2bQ1Nn/3q1rr1/1Q2R2R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 h5 c4 d5 b4 Kd7 g4 Kd6 f5 e3+ Kd3 a4 g5 e2 g6 e1B b6 a3 g7 h3 b5 Kc5 b7 Kb4 f6 a2 f7 h2 c5 h4 b6 h3 c6 Ra5 c7 Nc6 b8R Qe8 Be2 Rh5 Bb2 Nf6 g8Q Bg7 f8Q Ba6+ Kc2 d3+ Kc1 d2+ Kc2 d4 b7 Rhe5 c8N Nh5 Bc4 Rac5 Qf6 Qf7 Kd3 Bh6 Qc2 d1N Nd2 Ne3 Rb1 a1R Ne2 Nd5 Na7 Ra2 Rg1 h1R Rc1 h2 Qg2 Nc7 Qb1 Ne6 Rg8 Bf8 Rg5 Nhg7 Qg3 Ka4 Rf1 Rg1 Qe3 h1N Ng3 Rg2 Ba1 Ka3 Rg1 Red5 Ke4+ d3 Bd4 Rf5 Bd5 Re5+ Kf3 Nf2 Rh1 Nh3 Kg4 Rb2 Ne4 Rbf2 Rd1 Bc3 Rde1 d2 Kh4 Bd3 Kg4 Bb4 Kh4 Qg8 Kg4 Nf5 Kh5 Nfg7+ Kh6 Qf7 Kh7 d1Q Kh8 Qd2
B4b2/R1b1rnr1/N3b1p1/BK1N2rn/1bq1P1r1/r1R2B1R/2r2kN1/1Q5Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 e4 a5 b4 d5+ Kb3 f5 Ka4 g3 h4 g2 c4 d3 h5 Kd4 b6 g6 b7 f3 h6 d2 h7 Ke3 c5 d4 c6 f4 b5 f2 c7 d3 b6 f3 Kb5 a4 Rh3 a3 Rh6 a2 Ba3 Nd7 b8N Ndf6 b7 Be6 c8B Qd5+ Kb6 Nh5 Bb2 Qc4 Qb3 d1R Be5 Rc1 Bg3 Rc2 Bh2 Ra3 Nh3 g1B Qb4 d2 Be2 f1R Bc7 d1R Nc3 f2 Na6 Rd5 b8R Bh2 Bf3 Rg5 Nf4 Rfg1 Qb1 f1R Bb7 R1g4 Ng2+ Kf2 Rc8 Bhd6 Nd5 Bb4 Ba8 Rd1 Nc3 Rd7 Nd5 Re7 Bd8 Ng3 Rh3 Nh6 Rc6 Rg8 h8Q Nf7 Rc5 Nh5 Rc7 Qc3 Kb5 Rg7 Ra7 Qb3 Ba5 Qc3 Qb3 Qc8 Rc1 a1B Qb1 Be5 Qh7 Qc3 Qh6 Bc7 Qh8 Re2 Rc2 Qd4 Rc3 Rc2 Qh6 Re5 Qhc1 Reg5 Qh1 Qc4+
R4bN1/2n4Q/2bNkq1b/n3B1Q1/B3RBrN/b4bK1/Pb3pbR/2b2r2 w - - 0 1 illegal: No possible last move
1r1n1N2/2NRQ1rB/1r4pK/nbP1Q2r/1b1qrBB1/8/3RrkNR/4r1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Kd6 h4 Kd5 c4+ Ke4 e3 d5 h5 a5 h6 f5 b6 a4 b7 g3+ Kg2 f3+ Kh3 g2 h7 f4+ Kh2 d3 b5 a3 b6 a2 Be2 d4 Na3 d2 Qe1 d1R Qh4 f2 Nf3 g1R Nb5 f1R Ne1 d3 Nc7 Nc6 b8N d2 Bh5 Rg4 Kh3 f3 b7 f2 Nd7 Rg1 b8R f1R Rb2 Nh6 Ng2 Kf3 Rh2 Rf2 e4 Re2 e5 Ba6 e6 Rb8 e7 Rde1 e8B Na5 Beg6 Nf7 Bf5 Ba3 Nf8 d1R c5 Rd4 Qe7 Rde4 Bf4 Kf2 Rd1 a1R Bfg6 Rg5 Kh4 Rb1 Bg4 Qd2 Rc2 R1b6 Ra2 Rg8 h8Q Bb5 Bh7 g6 Qhe5 Nd8 Rc2 Qc3 Rd7 Rg7 Rcd2 Rf5 Rh3 Bb4 Rh2 Rff7 Kg5 Qd4 Kh6 Rf5 Na6 Rg5 Nc7 Rh5+
4Knqk/5Q2/nb6/bQ1b3n/BRQ1RNnB/1b1N1R1P/2p4r/1r2r1Br w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 e4 c5 d4 a5 b4 f5 b6 Kf7 b7 Kg7 b5 f3 Kg3 a4 e5 a3 b6 c3 e6 c2 d5 a2 d6 f2 d7 c4 e7 c3 e8Q f4+ Kg2 g3 Kf3 g4+ Ke4 f3 Kf5 g2 Ke6 g3 Bc4 f1N Ba6 f2 Qdh5 Bb4 Qb5 Ne7 Bg5 c1N Nd2 c2 Rb1 a1R Ndf3 Ne2 Re1 Ba5 Be3 Rb1 Qc4 Ng6 Nh3 g1B Bb5 g2 Ne5 Neg3 Nd3 Nh5 Ba4 Na6 b8Q Bb7 Nhf4 Bd5+ Kd6 Qc8 d8B Nf8 Ke7 Qg4 Bc5 Ne3 b7 f1B Ba7 Rh6 Qf7+ Kh8 Ke8 Qg8 Bh4 Ng4 Re4 Bgb6 Rg1 Be2 Rf1 g1R Rf2 Rh1 Rf3 Bc7 Bg1 Bcb6 Qbc8 Re1 b8R Bf1 Rb7 Rb8 Qb5 Rh7 Nc1 Bfc4 Ncd3 Bb3 h3 Rg7 Rbe7 Rg5 Rb4 Rge5 Re6 R5e2 Ree4 Rb7 Qcc4 Reh2 Qe6 Rg7 Qf7 Rg5 Re7 Rb1 Re6 Re5 Re7 Ree2 Re4 Ree1
1q1qn1r1/1QR2Q2/2n4p/1Q2nRnN/4B1Nb/bbB3B1/k2Nn2P/3nK1q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 b5 Qd3 f5 Qd2 Ra6 Qd1 Rf6 Nd2 exf4 Nb1 f3 Nd2 f4 Nb1 Rf5 gxf5 Be7 Nc3 Bc5 Nb1 Bf8 e4 Kf7 c4 d5 a4 g5 e5 b3 a5 b4 f6 Ke6 c5 g4 f7 d3 a6 d4 a7 Kd5 a8N Kc4 e6 f2+ Kd2 h6 c6 b2 c7 b3 e7 g3 e8Q g2 Ra5 f3 Qe4 Nf6 Rh5 Ne8 Re5 Be6 c8Q+ Nc6 Rd5 Ba3 f8B Rg8 Nc3 b1Q Qg4 b2 Qe2 Kb3 Kd1 d2 Nh3 g1B Bg2 f1N Nf4 f2 Nb6 Ng3 Bg7 f1N Rf5 Ne4 Nd7 Nfg3 Nf6 Bf2 Qg6 Ng5 Nce4 Ka2 Qb5 Ne2 Qcb7 Bh4 Qgf7 Qa1 N4h5 b1Q Ng4 Qb4 Kc2 d1N Bf4 Nb2 Bg3 Nd3 Rc1 Nde5 Kd1 d3 Nd2 Bb3+ Ke1 Qbd6 Be4 Q6b8 Bf8 Qad4 Bb4 Qg1+ Nf1 Na5 Rc7 Nac6 Ba5 Qh1 Bc3 d2+ Kf2 d1N+ Ke1 Qg2 Nd2 Qg1+
N1R1B1b1/k5p1/q2QbN1q/1R4nn/b1nb1bBn/3q2P1/4KQrB/4R1Q1 w - - 0 1 illegal: No proof kernel
1Bb2qB1/1kq1n1RB/r1Nn1p2/1N1K2r1/r2RQ3/1p3P2/bnQ1b3/3RQq2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 Kd2 d5 e3 d3 Nc3 d4 Nb1 Bg7 Ke1 d2+ Ke2 d3+ Kf3 Bd4 exd4 Qa5 Ke3 Qd8 Ke4 Kd7 c4 Kc7 a4 e5 g4 b5 d5 h5 d6+ Kb7 a5 h3 c5 h4 g5 h2 d7 b3 f3 b4 g6 b2 g7 h3 Qe2 d1N Ra4 b3 Ra3 d2 Kd5 f6 Ra4 e4 Qe3 Na6 Qd3 e3 Na3 b1B Qe4 e2 Rd4 e1R Nb5 Rh4 Ne2 Nh6 g8B Nb2 Rg1 d1B Bf4 h1Q Rg7 h2 Bb8 Qc7 d8R Ba2 Bh3 Qg2 Bf5 h1Q Bfh7 Rg1 Rdd7 Qf1 Qe7 Ra7 c6+ Ka8 Qe3 Nc5 a6 Ne4 Qd2 Rg3 Qe1 Nf5 Rd8 Rg5 Rd6 Rb7 a7 Rb6 Rdd7 Qhh2 Rd8 Qe7 c7 Kb7 Rd7 Ra6 a8Q+ Kb6 Rd8 Qf8 Rdd7 Ned6 Rd8 Bd7 c8Q Qg3 Qc2 Bc8 Nf4 Be2 Ng6 Re4 Ne7 Qh2 Rd1 Rea4 Rd4 Nf7 Nc6 Qc7 Re8 N7d6 Re3 R4a5 Red3 Ra3 Rd1 R6a4 Qaa5+ Kb7 Qab4 Ra6 Qbc4 R3a5 Q4d3 Ra4 Qe4 Ne7#
N1bRn2Q/Q1bK4/1pBn2n1/NqBN3r/4qr1p/5b2/1R1Q1qP1/k3r1B1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 h5 d4 c5 d6 f5 d5 b6 d7 f3 Ke6 b3 d6 f4 a5 f2 a6 b2 a7 h3 Ra2 f3 Be3 h2 Bd4 h4 Ra3 Qe8+ Kf5 Nc6 Nc3 Ne5 Ra2 Ng6 Qd2 Kb3 e4 b1Q Nd5 c4 Ne2 c3 Rb2+ Ka3 Nc1 c2 e5 Nf6 Nb3 c1R+ Bd3 f1B e6 f2 d8B Be2 d7 Bd6 e7 f1Q+ Ke6 Rh5 Bb5 Bf3 Bc6 Qf2 Na5 Bc7 Rd1 h1N Be3 Rb8 a8N Ng3 Bd4 Nge4 Be3 Qf8 e8Q Qb4 Be7 Nd6 Qh8 Nfe8 Bc5 Rc4 Bg5 Qd3 Bge3 Rf4 Bed4 Qb5 Be3 Bb7 d8Q Bc8+ Qd7 Qff1 Bg1 Qf2 Rbb1 Rb7 Qe3+ Ka2 Rd4 Qbf1 Rb2+ Ka1 Qd2 Qfb5 Rd3 Ne5 Ke7 Qe4 Rd4 Bb8 Kd8 Ng6 Qdg7 Re7 Rd3 Ree5 Qa7 Qeb4 Rd4 Re1 Rd3 Qe4 Rd4 Ba6 Kd7 Bc7 Nc3 Ne5+ Ke7 Ndc4 Rd8 Ng6+ Kd7 Ncd6 Nd5 Bc8+
2k3n1/Q1bpB3/1n2Bqnb/2rR2BN/N1Pr4/1pr4q/1K2b3/2NRq1QR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 g4 e5 a4 h5 f4 b3 g5 b4 g6 d3 a5 b2 f6 b3 Kc3 h3 a6 d2 a7 h4 g7 h2 f5 h3 Ra2 e4 Bb5 e3 Ra3 e2 Qe1 d1R Bf4 Ba6 Bc4 Nc6 Ra5 Rh5 Be6 Rd4 Rd5 Ne5 Bg5 Ng6 Qg3 Qe7 f7+ Kd8 f6 Kc8 Qf2 Rb8 a8Q Bb5 Qa7 e1B+ Qd2 Qd6 Ne2 Bg3 Nc1 Be2 Qe3 Qa6 Rd1 h1Q Qf2 h2 Qg1 Be7 f8B Bc7 f7 Rb5 Bh3 Qf6 Be6 Ba3 Be7 Rh3+ Qe3 Rf3 f8N Qg2 Nh7 Qh3 Rh1 Bad6 Rd1 Bf4 Rh1 Qff5 Nf6 Ra5 Nh5 Qf6 Rg1 h1Q Rd1 Bd3 Qg1 Be2+ Nd3 Be3 Nc1 Rg3 Nd2 b1N+ Kb2 Nc3 Ne4 Rf3 Nc5 Rb5 Na4 Rc5 Qh2 Qe1 Qg1 Na2 c4 Nb4 Rf5 Nd5 Re5 Nb6 Rd5 Nh6 g8R+ Qf8 Rg7 Ng8 Rh7 Qf6 Nf4 Bd2 Rh4 Rc3 Nh5 Qhf3 Rh1 Qh3 Bh4 Bh6 Bg5 Rg4 R1d4 Re4 Rd1 Rd4
2b1R3/rp2Q2q/N1q1nP1Q/rn1R4/Nr1nBQq1/3p2b1/KBb1N2R/3k4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 f4 Kf6 c4 h5 Kc2 d5 Kb2 e5 a4 h3 g4 b3 a5 h4 a6 e4 c5 d3 a7 e3 c6 d2 c7 d4 Bb5 d3 Ra3 e2 Rh2 e1R Rf2 h2 Ne2 h1Q Rf1 h3 Ra5 h2 Rf3 Ne7 Rf2 Nd7 Bc6 Rh5 Be4 Nc5 Nbc3 Nc6 Na4 Ne6 Rd5 Bd6 Kb1 b2 Ka2 b1N Bb2+ Ncd4 Qc1 d1B g5+ Kg7 g6 Kh6 g7 Na3 g8Q Qh4 f6 Bc2 f7 Qg4 f8R Nab5 f5+ Rg5 f6 Kh5 Qg7 Bg3 Qd2 Rb1 Re8 Qg2 Qf8 h1Q Qe7 Rf5 Qf4 Re5 Bc3 Rb4 Bb2 Q2h3 Qf3 Kg5 Rh2 Qh7 Qf2 Qgf3 Qe3+ Kg4 Qh6 Qfg2 Bf5+ Kf3 Be4+ Kf2 Qf4+ Ke1 Qh6 Bd7 c8Q Kd1 Qc7 Bc8 Qb8 Rf5 Qbf4 Qf3 Rf2 Qg4 Rh2 Rb8 a8N Re5 N8b6 Ra8 Nd7 Ra7 Nb8 Rf5 Na6 Qg2 Rd6 Rc5 Bg6 Qc6 Rd5 Nd6 Bf5 Ra5 Be4 N6b5
3R1n2/nK1BQNQ1/NR1r1B1P/1r1bp3/Rpk5/2n1b3/2r2n2/N1q1Qbn1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 e5+ Ke3 Kc5 a4 g5 h4 g3 f5 b3 h5 b4 f6 g4 h6 g2 f7 b2 a5 g3 d6 Bb7 a6 Bd5 a7 Nf6 d7 Nc6 Qe1 Nh7 Na3 b1B Nf3 g1N Bh3 g2 Nc2 Kc4 d4 Qc8 d8Q Bc5 f8Q Rb8 a8N Na7 Ra6 Rb5 Na1 Bd3 Rb6 Ne2 Ng5 g1N Qde7 Nc3 Bd7 Bf1 Qfg7 Rd8 Nf7 Nf8 Rh2 c6 Ra2 Qc7 Ra4 Qc8 Kf2 e3+ Kg3 e2 Bg5 Qc7 Bf6 Qc8 Kf2 Qc7 Ke3 Qc8 Qd2 e1N Nc7 Nd3 Qe1 Nf2 Na6 Qc7 Bc8 Rd6 Bd7 Bh1 Kd2 Bf3 d5 Be3+ Kc2 c5 Kb2 Rc6 d6 B3g2 Bg4 Bf3 d7 Bd5 d8R Rd6 Bc8 Kd4 Bd7 c4 Nc5 Nce2 Na6 c3+ Kb1 c2+ Kb2 Bb7 Kb3 c1R Ra2 Bd5+ Ka4 Kc4 Ra3 Rc5 Ra2 Rc2 Ra3 Nb5 Ka5 Nec3 Ra4 Qc6 Nc7 Na7+ Ka6 Bdg2 Qg5 Rcd5 Qg7 Qc5 Kb7 Qc6+ Kb8 Rb5 Na6 Qc5 Ra5 Bd5 Ra4 Qd4 Kc7 Qd2 Kb8 Qc1 Kc7 Nc6 Kb7 Na7+
B2Q3b/bq1bP1B1/R2Npb2/nR1rN3/2K5/B1Q1rbrn/1p2n1NQ/5k2 w - - 0 1 illegal: No proof kernel
1K1Q1nq1/2Q1ppr1/Prbb2nB/N2R3B/2Rr2r1/5nrb/1N2k1NQ/7R w - - 0 1 illegal: No proof kernel
1QK5/2p3P1/B2bR3/Nq1N1Rnr/B1bR1n2/1b1Qnbk1/p4rbN/3rB3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 d4 h5 b4 f5 b6 a5 b7 f4 d5 h3 g3 h4 b5 h2 b6 h3 d6 a4 d7 c3 Ke6 a3 e5 a2 Bc4 c2 Bd2 c1R Ba6 Qg5 Qe2 Rd1 Qd3 f2 Nf3 f1N Be1 Rh5 Nc3 Ne3 Rf1 h1B Nd5 Nc6 b8Q h2 b7 Nce7 Rb1 Nh6 Rb6 Kh3 g4 Bg2 Rf2 h1B Nh2 f3 Rd6 Qh4 g5 Qc4 g6 Nf7 g7 Ng6 Rb6 Bb4 Rd6 Nf4+ Ke7 Nh6 Kd8 Qb5 e6 Kg3 e7 Bc5 Rf1+ f2 Re6 Bd6 e8B Bf3 Qa7 Bhg2 b8N Bb7 Qb6 Bc6 Kc8 Nf7 d8R Ng5 Bd7 Qa5 Qa7 Ba4 Bdb5 Bb3 Ba4 Qb5 Qb7 Ra7 Nc6 Ra8+ Qb8 Bc5 Na5 Bd6 Bb7 Ra6 Rd7 Rc6 Ba6 Rc2 Rf7 Rb2 Rf5 Rbd2 Rh1 Re2 Ng4 Red2 Rh4 Rc2 Nh2 Rb2 Bb4 f1B Bc3 Rf2 Be1 Nfh3 Rd4 Nf4 Qd2 Bfc4 Qc3 Bgf1 Qd3 B1g2
1k2b1r1/1p5N/bBbrn1n1/1Q3B2/n2q2R1/Krbp2bR/2N2PN1/4QQ1B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 d5 g4 Kd7 c4 Kc7 Kc2 h5 Kb3 e5 a4 d3 a5 h3 g5 d2 a6 h4 f6 d4 a7 h2 c5 d3 g6 e4 g7 h3 f7 e3 c6 e2 Na3 e1B Qh5 d1N Ra2 Nc3 Qd1 Be6+ Kb2 b3 Qd2 Rh6 Ne2 Bc4 Nc2 Bd6 f8N Ne7 g8Q Ba6 Nf4 Nd7 Ra4 Nc5 Qg5 Ng6 Nh7 Ne6 Ng2 Bg3 Rg4 Na4+ Ka3 b2 Qb5 b1R Be2 Rc8 a8Q Qd4 Bf3 Rg8 Qd1 Bc3 Qe1 Rb2 Be3 Rb4 Qe8 Rb1 Qe7+ Kb8 Qf1 Rb4 Ka2 Rb3 c7+ Ka7 c8B Kb8 Rg1 h1B Bd7 Qg7 Bb6 h2 Rh4 Qd4 Rh3 Nd8 Qee1 Ne6 Nge3 Bg2 Bfc6 Bf3 Ng2 h1B Be4 Bh5 Bf5 Ne5 Bc6 Be8 Bce4 Ng6 Bd5 Rb4 Ka3 Rb1 Nf4 Be4 Ng2 Rb3+ Ka2 Bd6 Nge3 Ne5 Na1 Nec5 Rg4 Re6 Bc6 Ng6 Nac2 Bg3 Bd5 Rd6 Bc6 Rb2+ Ka3 Bf3 Bce4 Ne6 Bd5 Bd1 Bh1 Bf3 Ng2 Bfc6 Qbe5 Rb4 Qb5 Rb3+
Q1r3rr/1r1Q1B1q/BK1R1q1p/4k2n/bp5n/NNnP4/1r5b/N1R1B1R1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b3 a4 Kd7 g4 Kd6 e4 f5 d3 b5 a5 c5 g5 h3 g6 f3 Ke3 f2 a6 h2 g7 b2 a7 b4 Bd2 c4 Kd4 f4 Qa4 f3 Bg2 f1R Ne2 f2 Rg1 h1Q Na3 b1N Nc1 c3 Be1 c2 Nb3 c1R Nc2 Ne7 g8B h6 Kc4 Nf5 Kb5 Nd7 Bh3 Nh4 e5+ Kc7 e6 Kd6 e7 Qe4 Bge6 Nf6 Bhg4 Nh5 e8N+ Ke5 d6 Qh7 d7 Kf4 Nc7 Qde7 d8R Bd7+ Kb6 Qef7 Bh3 Bd6 Nb5 Bc6 Rd7 Rag8 Nba3 Qfg6 Qa6 Ba4 a8Q Be5 Bc3 Rfe1 Rd8 f1R Rd6 Rf2 Q6b7 Qf6 Bf7 Re4 Bhe6 Rc4 Qd7 Rc7 Be1 Rb7+ Ka5 Rd2 Bc4 Rdg2 Ba6 Re2 Ncd4 Rcc8 Ndc2 Nc3 Rc1 Reg2 Nca1 Rb2 Qe7 Kf5 Qc7 Bg3 Qc6 Ke5 Qd7 Rbc7 Kb6 Bh2 Qac6 Ra7 Qa8 Rb7+
3QrrB1/k3bR1b/1nn1Qp1K/b2P4/1bR5/pNRq1Q2/Nb1B2q1/3n2N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 a5 b4 g5 d4 c5 h4 Kc7 e5 Kb6 h5 a4 e6 f6 e7 f3 Ke3 g3 e8R c3 h6 g2 h7 f2 Nd2 g4 Kf4 c2 Rh6 g3 Qf3 a3 Nb3 c4 Bd2 c1B Re7 c3 Rh4 c2 Bc4 f1N Rf7 Nd7 Kg4 Ne3+ Kh5 Bb2 Rc1 Ka7 Kg6 Be7 b6+ Kb8 b7 Nd1 b5 Ka7 b8N Nb6 Kh5 Bf5 Na6 Bc3 Rf4 Ba5 Nb4 Qd6 Na2 Rf8 Re4 Qd7 Be6 Beb4 Rf4 Ne7 Kh6 Nc6 Rh4 Rhg8 h8Q Bh7 Qg7 Re8 Qgg4 Rgf8 Bc4 Be7 Qe6 Qd5 Re4 Bb4 Re3 Qe4 Rc3 Qd3 Rb1 c1B Bd5 Bb2 Rbc1 Ba5 Rc4 Nd7 R1c3 Beb4 Nh3 g1B b6+ Ka6 b7 g2 b8Q Nb6 Qbd6 Bh2 Qb8 g1Q Qd8 Qg2 Ng1 Bhd6 Be4 Be7 d5 Bg6 Bf5 Ka7 Be4 Bh5 Bh7 Bg6 Bg8 Bh7
1k6/N2R2Rr/4P2R/K2rpq2/1nn1Q1qn/1bQ2NBr/2pb4/1r1BQr1B w - - 0 1 illegal: No possible last move
N1bN2B1/2n2rk1/1K1p1rb1/N1pPrQ2/1q1r4/1R1qnr1Q/R1B5/1RB4n w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Nf3 b5 Bb2 b3 Ng1 b4 Bc1 b2 Na3 b3 Nb1 Bb4 cxb4 Qf6 Nc3 Qg5 Nb1 Qd8 Kf2 Kf8 g4 f5 d4 h5 e4 f3 Ke3 h3 a4 h2 b5 f2 d5 f4+ Kd4 f3 Kc5 h4 b6 c6 g5 h3 a5 Kf7 a6 Kg7 e5 Rh4 b7 Qe7+ Kb6 Nh6 g6 Rd4 e6 Nf5 a7 Ne3 Bd3 f1R Ra2 f2 Nf3 Na6 b8R Nc7 Nbd2 b1Q Nc4 b2 Ng5 c5 Rg1 h1N Qc2 d6 Nf7 h2 Na5 Qh4 e7 Re1 e8Q f1R Rg3 Rf6 Qe6 Ref1 Qf5 Rf3 Qg2 Qf4 Be4 Qd3 Qgh3 b1B Nd8 Qh4 Rb7 Rb8 Rg1 Qe1 a8N Qb4+ Kc6 Rf7 Rb6 Rb7 Rb5 Ra7 Kb6 Rf6 Rf1 Nf2 Rg1 h1R Rg3 Re1 Rg1 Kg8 g7 Nh1 Rf1 Qdd2 Bc2 Qd3 Ndc6 Kf7 g8B+ Kg7 Nd8 Ng2 Qhh5 Re5 Qhh3 Ne3 Re1 Ne8 Rf1 Raf7 Re1 Nc7 Rd1 Qba3 Rb3 Qb4+ Ka7 Qa3 Qfg4+ Qg6 Be4 Ree6 Bb2 Rg3 Kb6 Re5 Rf1 Bd3 Rb1 Rgf3 Bc1 Qb4+ Ka7 Bb5 Bc2 Bbd7 Qf4 Qd3 Qe4 Bg4 Qf4 Bh5 Qff5 Qbd2 Kb6 Bg6 Nc4 Q2c3 Na5 Qb4+
2r5/1B2N1Rq/BKPp1Qr1/n1B2Q1N/3qRn2/1R1pn1Q1/bnr4b/1k3n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Kd6 e4 Kc5 c4 Kb4 c5 f5 e5 h5 b3 a5 e6 h3 g5 f3 g6 h2 b6 f4 e7 a4 e8Q d3 g7 h4 b7 h3 Qe6 a3 Qde2 a2 Be3 Ne7 g8B Ng6 Qb2 Ra6 Qbf6 Bd6 Bg2 Nc6 Ne2 Na5 Re1 h1Q Ng3 h2 Nc3 Ka3 b8Q Kb2 b4 Qb6 Rad1 a1R b5 Rc1 Nd5+ Kb1 Ne7 Bb7 Qe4 Bd5 Qef5 Ba2 Bc4 Rc8 Nh5 Qd8 b6 Qh8 Qf7 Qd4 b7 Rac6 Re2 Be5 Rdd2 Rc2 Qd6 Ra6 Qdf6 Re6 Qg8 d6 Ba6 Qc1 Rd1 h1N+ Ke1 Nf2 b8R+ Ka1 Rb7 Qb1 Rc1 Nd1 Rb3 Nb2 Rd1 Qc1 Kf2 Kb1 Rg1 Nh8 Qg3 Ng6 Bh3 Qd1 Rg2 Qh1 c6 Qb4 Bd4 Qh2 Bc5 Qd4+ Ke1 Qh1+ Rg1 Qh2 Re4 f2+ Kf1 Qh1 Bg4 Qh4 Kg2+ f1N+ Kf3 Rc4 Rg2 Ne3 Kf2 f3 Ke1 f2+ Kd2 Nf4 Bb7 Qd5 Bh3 Rd4 Kc3 f1N Rg1 Qg5 Bg4 Qg6 Ba6 Qh7 Rg2 Nec4 Kb4 Nce3+ Kb5 Rc4 Kb6 Qd4 Qgh4 Qg8 Q5g6 Ne2 Qfg7 Rc7 Rg3 Rf6 Bgc8 Qh7 Bcb7 Rc2 Qf5 Rc8 Qf8 Re6 Rg7 Bh2 Qg3 Rg6 Q8f6 Nf4
1bR5/K3BN2/2p1qQ1N/3bPrbk/1nBQQn2/R6b/Bprb4/1n4Nq w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 g5 a4 f5 e4 Kf7 h4 Kg6 d4 b5 a5 b3 d6 f3 Ke3 f2 a6 g3 d5 b2 Kd4 b4 Kc5 g2 e5 f4 a7 g4 Qf3 c6 Qb3 f3 Qc4 g3 Ra3 b3 Qe4+ Kh5 Nc3 b1N Nb5 b2 Bc4 f1Q Bg5 f2 Be7 Bh6 d7 Nf6 d6 Qg8 Kb6 Na6 d8Q Nb4 d7 Bg5 Ba2 Qe6 Nd6 Rh7 Nf5 Nfd5+ Kc5 Nf4 Kb6 Rf7 Nh6 Rf5 Qf8 Ba6 d8Q Bc4 Qdd4 Rd8 a8B Bd5 Bb7 Qd1 Rh3 f1B Ka7 Qe1 Qf6 Rd6 Nf3 g1B Ba6 g2 B6c4 Be3 Ng1 Bd2 Rhb3 Qe3 Rd3 Qh3 Rf3 Qh1 Rfb3 Nc2 Rb8 Nb4 Ra8 Be2 Rg8 Bg4 Rc8 Bh3 Ng8 Kg4 h5 Kh4 h6 Kh5 h7 Rd8 Ne2 g1B h8N Rf8 Nh6 Rg8 Qb6 Bc5 N8f7 Bd6 Ng1 Bb8+ Kb7 Bh4 Qf2 Rg2 Qfd4 Bg5 Ka8 Rg3 Kb7 Rc3 Ka8 Rc2 Kb7 Bc7 Ka7 Bb8+
1K1r4/3rRB1k/1pr4B/rN2nNq1/5bQB/2Qn3N/P1Q1p2R/q2b1r1b w - - 0 1 illegal: No possible last move, all moves rejected
1BBqRQr1/Q6N/1p3p2/1r1QN3/RP3q1b/8/4nnqq/NRbK1knq w - - 0 1 legal: proof: f4 c5 h4 g5 a4 gxh4 d4 cxd4 f5 b6 a5 Bb7 a6 e6 axb7 exf5 Ra4 f4 Ra5 Qe7 Ra1 Qd8 e4 Ke7 b4 Ke6 g4 Ke5 c4 h5 c5 d5 c6 a5 g5 f3 g6 a4 g7 h3 c7 d3 c8R Kd4 e5 h2 e6 f2+ Kd2 a3 e7 a2 e8N h4 Be2 f1Q Qa4 h3 Rc7 Qf4+ Ke1 d2+ Kd1 Ke3 Ba3 Kf2 Kc2 d1Q+ Kb2 d4 Bf3 d3 Bc6 d2 Qb3 Nf6 g8Q Kf1 Be4 Nbd7 b8Q Be7 Bc2 Nd5 Qf8 Qdf3 Bf5 d1N+ Kc2 Bh4 Nf6 N5c3 Rc8 Rg8 Qd5 Ne5 Qa7 Nf2 Nh7 f6 Bc1 Qg2 Na3 Ne2 Rb8 Rg5 Bc8 Nf3 Rb1 a1B Bb2+ Nd1 Be5 Bb2 Bc7 Bc1 Bd6 Ndc3 Bc7 Ne4 Kd1 Rg8 Nc2 Rg5 Na1 Rg8 Qb7 Ra5 Qa7 Rb5 Ra8 Nfd4 Nf3+ Ng1 Bb8 Ne2 Ne5 Nf2+ Kc2 Rh8 Qaf7 Rg8 Ra4 Bg3 Q7e7 Bh4 Qa7 Nd4+ Kc3 Ke2 Nc6 Ngf3 Rd1 Ng1 Rd3 Kf1 Re3 Nde2+ Kc2 h1Q Qc7 Qhh2 Re8 Qhg3 Ne5 h2 Qcd7 h1Q Qa7 Nfh3 Kd1 Q2h2 Rb3 Qgg2 Rb1 Nf2+
Q2Qn3/nR2n1Pp/K2N1n2/1qbp2k1/4B3/3RNrrB/2Rnb1q1/4BNq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 a5 g4 d6 b4 h3 e4 f3 b6 h2 Kb5 f2 c4 d3 c5 a4 b7 d2 c6 a3 c7 a2 e5+ Kg5 e6 f5 e7 f4 e8N f3 Bh3 f1N Nc3 f2 Nd5 Nd7 b8Q Ne7 Ne2 Nf6 Ne3 Ra3 Ng3 Rg8 Qa8 Qd7+ Kb6 Rc3 b5 Ba6 c8B Qc6+ Ka5 Qg2 b6 Be2 b7 Rg6 Rg1 h1N b8R Rb3 Rb1 a1Q+ Ba3 Rd3 R8b7 Qe5+ Kb6 Qb5+ Ka7 Rg7 Rc1 Rf7 Rc2 d5 Qc1 d1N Bb4 Nc3 Bf5 Rg7 Nd6 Ne8 Be4 Nd2 Rd1 f1Q Qb1 Qe1 Ngf1 Nf2 Qd8 Rf7 Qa1 Rf3 Qaa5 Rg3 Qa8 Rf3 Q5d8 Rg3 Nec4 Rdf3 Nce3 Nb3 Rd3 Nd2 Nh2 Qeg1 Nhf1 Qa4+ Ba5 Nb5+ Ka6 Qb3 Bb4 Na7 Ba5 Nb1 Be1 Nd2 Bg6 Nfe4 Bf5 N4f6 Be4 Kh4 g5 Kh5 g6 Kg5 g7 Ng6 Nb5 Bc5 Nd6 Ne7 Ra2 Qb4 Rc2 Qb5+
1q1r4/1k2b1p1/3q1Q2/4Rr2/2bnrR1r/rqQ2P2/p1NBB1NK/R1n2BN1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 h4 e5 c4 d5 b4 Kd7 c5 Kc7 f3 a5 Kf2 a4 Kg2 d3 c6 d2 h5 e3 h6 d4 h7 a3 Ra2 e2 Rh3 e1R Bd3 g3 Bf5 d3 Rh6 e4 Rh4 e3 Rf4 e2 Ra1 a2 Na3 Nf6 Qc2 d1Q Bh3 d2 Qc3 Ne4 Nc2 Be6 b6+ Kc8 b5 Be7 c7 Ra3 Kh1 g2+ Kh2 Kb7 Qf6 Rg8 h8N Bc4 Ng6 Ng3 Nh4 Nc6 Qc3 Qb8 c8B+ Ka8 Ba6 Rd8 Qf6 Nd4 b7+ Ka7 Ne3 Qa4 Nc2 d1Q Be3 Qb3 Bd2 Qd6 b8R Qdb1 Rb6 Rd1 Rc6 e1R Rc5 Re4 Re5 Nge2 b6+ Kb8 b7 Nc1 Bb5 Kc7 Ba6 Kc6 b8Q Rde1 Ne2 g1R Bf1 Rg4 Qb4 Q1b2 Bb5+ Kb7 Ng1 R1e2+ Ng2 R2e3 Rd5 Re5 Qc3 Rf5 Re5 Re4 Ba4 Qbb4 Be8 Q2b3 Bb5 Qb8 Be2 Q4d6 Bf1 Be6 Bbd3 Bc4 Bde2 Rh4+
kN2r1QR/2K1qbp1/2RQpbQ1/1B3qnP/1Bb2BN1/b4r2/5nb1/6Rr w - - 0 1 legal: proof: e4 c5 d4 cxd4 g4 f5 b4 fxe4 g5 a5 bxa5 h6 Qd2 hxg5 Qd1 g4 Ke2 b5 c4 d5 h4 Kd7 f4 Kc7 a4 Kb7 f5 e3 Kd3 e6 c5 g3 f6 e2 f7 e1B Nf3 g2 Ba3 g1R Nh2 b4 Qg4 b3 Nc3 b2 Ne2 Nf6 a6+ Ka7 c6 Ne4 a5 Bc3 c7 Nc6 Qg3 Bb7 c8R Rh7 Qe5 Ng5 Bd6 Rh6 Re1 Rf6 Ng4 Qe7 Rc1 b1Q+ Rc2 Qe8 Qe4 Be7 f8B Rf4 Be5 Ba3 Bc7 Ba1 Bb4 Qe7 Qg6 Ne5+ Kd2 Qc5 Rh8 Nd3 h5 Nf2 Nf6 Qe7 Ng4 Qf7 Be5 Bc6 Rc1 Be8 Bed6 Qe7 Rc5 d3 Ke3 d2 Nd4 d1B Be5 Qf6 Bb5 Bf3 Rc3 Rg2 Rg1 Rh2 Rc5 Bg2 Rc3 Nd3 Rc4 Rf2 Bf4 Qd8 Rc8 Rh1 Rc4 Qd6 Rc2 Kb8 a7+ Kb7 Rc3 Bf7 Nc6 Rf3+ Kd4 Nf2 a6+ Kb6 Nh2 Qf5 Ng4 Rb8 a8Q Qe7 a7 Rf8 Qe8 Kb7 Be3 Qd8 Kc5 d4+ Nce5 d3 Bf4 Qb8 Qd8 d2 Qd6 d1B Rc1 Be2 a8Q+ Kc8 Kc6 B1b2 Rc5 Bc4 Nd7 Rd8 Qf8 Bf6 Qg8 Rf8 Qa4 Rd8 Qd1 Qa8+ Kd6+ Kb7 Rc6 Qc8 Qd2 Ka8 Qd5 Rf8 Nb8 Qe8 Kc7 Qe7+ Kb6 Re8 Qd6 Qf8 Kc7 Qe7+
kb4KR/1rb3pp/1n1NbRQ1/1Nrq4/q2B1Q2/1PbN4/Q3B3/1qb1nB2 w - - 0 1 illegal: No possible last move, all moves rejected
1b3Rq1/Bq1Q1p1P/R1qQ2r1/Nq1b2N1/2r2p1n/2Q3K1/Bn5R/1nq2kN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 e6 Ra4 exf5 Ra2 Be7 Ra1 Bf8 Kf2 Ke7 b4 Kd6 e4 Ke5 h4 a5 c4 g5 h5 d5 h6 d3 b6 Kd4 b7 d2 c5 g3+ Kg2 Ke3 e5 a4 h7 g4 c6 d4 b5 a3 e6 a2 e7 d3 e8R+ Ne7 c7 Na6 b8N Qd5+ Nf3 Bb7 c8Q Nc5 b6 Na4 Rg1 Nc3 Qd8 Rg8 Be2 Rg6 Qd6 Qc6 Rh1 Ra4 Nd7 Rc4 Na3 Nb1 Kg1 g2 Kh2 Kf2 Nde5 g3+ Kh3 g1Q Rc8 g2 Qd7 Qf1 Qb3 d1Q Ng5 d2 Qc3 Qb3 Nef3 d1N Rh2 Nb2 Ng1 Bg7 Bf3 Be5 Rf8 Bb8 Bd5 Qd3+ Be3+ Kf1 Be6 Qdd5 Bd4 Qdb5 Bd5 Ba8 b7 Q3b4 Ba7 Qb3 N1f3 g1Q Be6 Qgb6 Ng1 Qd8 Rh8 Qf8 Rg8 Qg7 Rf8 Qg8 Bd5 Rg7 Be6 Ng6 Bd5 Nh4 Be6 Re4 Nc4 Rg6 Na5 Rc4 Bd5 Bg3 b8Q Q3b4 Qbd8 Bb8 Q8c7 Qbb7 Be6 Q4b5 Kg3 Rf4 Qcd4 Qca6 Qcd8 Qc8 Bb3 Bd5 Qe6 Qcc6 Nc4 Qab7 Qc3 Re4+ Qdd6 Rd4 Bd1 Na3 Qd7 Rf4 Rc1 a1Q Bb3+ Nd1 Rcc2 Qc1 Ra2 Nb1 Ra6 Nb2 Na5 Rc4 Ba2 f4+
R2Q4/rq1bp3/5B2/N1qRN1K1/2Bq1Nr1/2p4P/qr3RQB/knqnb3 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 d4 c5 b4 a5 h3 g5+ Kg3 e3 f4 e2 f5 e1Q+ Kg2 g3 Kf3 g2 Kg4 c3 b6 a4 b7 c4 b5 a3 b6 a2 Qc2 Nf6+ Kf3 g4+ Kf4 g3 Na3 Qe4+ Kg5 Bg7 Qb2 c2 Qc3 Ra7 Ne2 g1R Qe3 g2 Qb3 Na6 b8B Nb4 b7 Rh4 Qb2 Nd3 Be3 c1Q Bh2 Bd7 b8N Nf2 Nc6 Nd1 Na5 c3 N3c4 Bh6+ Kg6 Qa8 Ne5 Qb7 Bg5 Qd3 Qc2 Ne4 Bf6 Nd2 Nf4+ Ke4 d5 Nb1 Qf2 Qd4 Bc4 Rf1 d6 g1Q+ Qg3 Rf2 Qg5 Rb2 Qg4 Ke3 Qg2 Qf2 Rf1 Qg1 Rf2 Qc5 Rd2 Qf2 Rd4 Qfd2 Rd5 Qdd4 Bh8 Bg5 f6 Bh6 f7 Bg5 Qg3+ Kd2 f8R Kc2 Bf6 Bh6 Ng2 Be3 Nf4 Bf2 Kg5 Be1 Ra8 Na3 Rb1 a1Q Qf3 Qa2 Qg4 Bb5 d7 Ba4 d8Q Bd7 Ra1 Nb1 Qg1 Rb6 Qh1 Kb2 Qf3 Qb3 Ra3 Qa2 Qg2+ Ka1 Rb3 Rb5 Rb2 Rb4 Rc2 Rb2 Rf2 Rg4+
2QBN3/3Pr1Nk/1pQbn1R1/2r4N/2r5/1b2qr1n/n1rp1QBR/K1R2q2 w - - 0 1 illegal: No proof kernel
1K1B1NQ1/2qp4/rR3r1R/kqRn1bbB/1q1q2Q1/1pn5/1P1qN3/NB2r3 w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qxa5+ Ke2 Qa6+ Ke1 Qa2 Kd2 Kd8 Kd3 Kc7 Ke4 Kb6 Ke5 h5 c4 a5 f4 d3 g4 h3 g5 h2 g6 a4 c5+ Ka5 c6 b5 g7 b4 f6 d2 c7 a3 f7 b3 f5 h4 f6 h3 Ba6 Nc6+ Kd5 e5 Bd3 e4 Bc2 e3 Qe1 e2 Nc3 d1Q+ Qd2 e1R Qd3 Be7 f8R Bb7 c8B Rh6 f7 Bg5 Nce2 Qd2 Nf3 Ra6 Nfd4 Nf6+ Kd6 Ne7+ Kc7 Ne4 g8Q Nd5+ Kb8 Nec3 Qf3 Rhf6 Qg4 Qb1 Be4 Qbd3 Nc2 a2 Bf5 Bc6 Bb7 Qd4 Rc8 Bb5 f8N Bd3 Bg6 Bf5 Bh5 Qb4 Rc6 Qdd4 Rb1 a1Q Rb6 Qaa4 Na1 Qab5 Bf4 Qd2 Bc7 Qbd4 Bd8 Qdb4 Rg1 h1Q Rc1 Qhe4 Rh1 h2 Bc6 Qed4 Bb7 Na2 Rc5 Nac3 Ba8 Ne7 Be4 Ned5 Rf1 h1Q Bb1 Qg2 Rh1 Qge4 Be8 Qe6 Rh6 Qc6 Bh5 Qc7+
N2n1rR1/1Q1p1qn1/1r1p2N1/kr6/1n1B4/1RbP1q1B/n2nbQR1/NK1B4 w - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 f4 exf4 c3 gxh4 Qc2 Ba6 Qg6 Bc8 Qd6 cxd6 Kd1 f5 Kc2 h5 b4 a5 g4 a4 e4 f3 g5 f4 c4 h3 g6 f2 g7 h4 c5 a3 c6 h2 c7 h3 b6 f3 e5 a2 b5 Rh5 b7 Nh6 g8B Bg7 b6 Ra6 e6 Qe7 Ne2 Nf7 Rg1 h1N Rg5 h2 Nf4 Nd8 Bb2 Bc3 Rg2 Rb5 Ng6 Ng3 Na3 h1Q Rb1 Nbc6 b8Q Qf7 b7 Nf5 e7 Ng7 Qa7 Rab6 b8Q Ba6 c8R a1N+ Kc1 Qh5 Nc2 Nb4 Qbb7 Qhd5 Be2 f1N Bd1 f2 Rb8 Qff3 Be6 Qb3 Bh3 Qbf7 Nd4 Nac2 Nb3 Qc4 Ba1 Qcf7 Rb2 Na2+ Kb1 Ncb4 Rc8 Rg5 Ra8 Be2 d3 Rgb5 Rb8 Ng3 Rc8 f1R Ra8 Ra6 Qf2 Rab6 Rc8 Ne4 Ra8 Q7f5 Rc8 Kf7 e8N Ke6 Ne5 Ke7 Nc7 Qg6 Na8 Qgf7 Nd4 Ke8 Nc2 Ke7 Rb3 Ke8 Rg4 Ke7 Ng6+ Ke6 Qa6 Kd5 Rb8 Kc6 Rg2 Rh5 Qa7 Kb5 Qb7 Ka5 Bb2 Rhb5 Na1 Ndc6 Rh8 Nd8 Rg8 Qh5 Nf4 Qff5 Rh2 Be1 Bd4 Bc3 Qg3 Qe6 Ng6 Rf8 Qg1 Qf3 Rg2 Qef7 Qf2 Nd2#
Q1bR2b1/qqP2N1r/7R/Q2b1Qp1/p3nN1r/1R3bBB/rN5n/bk1K4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 Ke7 c4 Kf6 e4 Ke5 b4 a5 c5 f5 h5 g5 c6 d5 b6 f3 c7 g3 b5 f2+ Ke2 g2 h6 d3+ Kd2 Kd4 b7 f4 b6 f3 e5 Nf6 e6 Nc6 b8R Rh7 b7 Ne5 e7 Neg4 e8N Nh2 Ba3 Bg7 Bd6 Ne4+ Kc1 d2+ Kc2 a4 Be2 f1B Bc4 f2 Nh3 g1Q Qg4 d1R Bg3 Bg2 Nf4 f1B Nc3 Rd2+ Kc1 Bh8 Nd1 Ra2 Nb2 Kc3 Kd1 d4 Be6 d3 Nd6 d2 Rb1 Qa7 Qf5 Bc4 Nf7 Qf8 Qa5+ Qb4 Bh3 B4e6 Ne5 Bg8 Nf7 Bd7 Rd8 Bc8 b8Q Bg7 Ke2 Kc2 Qbb5 Bf6 Qe5 Qbb7 Qf5 d1B+ Ke1 Rg7 h7 Bdf3 h8Q Rh7 Nd1 Rb8 Rb3 Ba1 Nb2 Kb1 Bg4 Nf1 Rh6 Nh2 Bh3 Qc6 Qd4 Rb4 Qdd5 Qb5 Qa8 Qbb7 Nfd3 Nf2 Kd2 Rh4 Ke1 Bd5 Nf4+ Ne4 Kd1 Bf3+
1r2N3/k1p1K1NB/b2R1QB1/n3R1r1/nR2bQp1/2n2nq1/N3r1P1/2n1Bq2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 e5 c5 exf4 c6 g4 Kf2 Be7 Ke1 Bg5 hxg5 dxc6 Na3 c5 Nb1 c4 Kf2 Kd7 a4 Kc6 d4 Kb6 e4 h5 a5+ Ka7 d5 f5 d6 b5 d7 f3 Ke3 f4+ Kd4 c3 Ke5 c2 Ke6 f2 e5 f3 a6 h4 g6 h3 g7 h2 Be2 f1N Bf4 c1N Qd6 f2 Ra5 b3 Bd3 b2 Ne2 b4 Bd2 b3 Nd4 Qh4 Be1 Rh5 Nf5 Qg3 Nc3 b1N Na2 Nf6 g8B b2 Bh7 Nfd2 Ke7 f1Q d8Q Nc3 e6 b1B Re5 Nf3 Ng7 Rg5 Bdg6 Nfd7 Qd2 Nb6 Qf4 Nba4 Rg1 Kb6 a7 h1R Qdf8 Be4 Q8f6 Rhh5 Rh1 Ba6 Rh3 Nd7 Rh1 Rh8 a8R Ndc5 Rb8+ Ka7 Rb4 N5b3 Rh4 Rh6 Rh5 Rf8 Rd5 Rb8 Rd6 Rc5 Re5 Na5 Kd7 Rh5 e7 Rg5 e8N Rd5 Ke6 Rd2 Ke7 Re2
1R1q4/B1p2r1q/N1qNq1n1/3nk2B/Q3P1bN/2R4n/1q1r2p1/bRQB2K1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 h4 g5 a4 f5 h5 b5 e3 g3+ Kg2 b3 a5 b4 h6 b2 a6 g4 a7 b3 h7 Nc6 Be2 f3+ Kf1 f2 Na3 b1Q Rh3 f4 Nf3 b2 Nh4 Nge7 Qa4 Ne5 Bd1 Bg7 Nc2 Rf8 h8N N5g6 Nb4 Rf7 Na6 Bf6 Kg2 f3+ Kh1 Qf5 Rb1 g2+ Kh2 Rb8 a8B f1Q e4 g1N Be3 f2 Bc6 Qe6 Be8 Qe2 Rg3 f1Q+ Bf2 Qc2 Rc3 g3+ Kh1 Rf8 Be3 Nf4 Beh5 g2+ Kh2 Neg6 Nf7+ Ke7 Bf2 Ngh3 Nd6 Rf7 Be3 Qc4 Bg1 Qc6 Be3 Ng5 Kg1 Qd3 Bf2 Qdh3 Nc4 Qhf5 Ne5 Qg8 Rb3 Kd6 Rc1 Qh7 Nc4+ Kd7 Rb5 b1Q d6 Qe7 d5 Ba1 Rc3 Qc1 Rb1 Rb2 Ba7 Kd8 d7 Re2 Rf3 Qb2 Re3 Qef6 Rc3 Ke7 d6+ Ke6 d8R Qfh8 d7 Ngh3+ Kh2 Qfe5 Rf8 Rc2 d8Q Qf5 Qd2 Nd5 Qc1 Rd2 Nd6 Ke5 Rd8 Be6 Ra8 Qd8 Rb8 Qff6 Rb4 Bg4 Rb8 Nhf4 Kg1 Qfe7 Nc8 Qee6 Nd6 Nh3+
3R4/1KBr3r/3N4/1Bb3kb/1b1Qr1p1/1qnn1Rpn/NqQNP3/1b2RQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 g5 Kd5 a5 b4 a4 c4 a3 h4 d3 h5 a2 h6 g3 h7 d2 b6 f3 b7 f2 b5 Bb4 b6 Ra7 c5 Na6 b8R Nh6 b7 Qg8 c6 Nc5 c7 Nd3 Ra8 Ng4 Qe1 d1N b8Q Nc3+ Kc4 d5+ Kb3 d4 Bh3 f1R Kc4 Ngf2 Qb7 Bg4 c8Q Bh5 Qd5 g4 Bg2 Nh3 Nf3 Rd7 Nfd2 Rf4 Rf1 Qg7 Qe4 Kg5 Rf3 f5 Qf1 Qf6 Qd5 Re4 Qc7 Qb6 Rd8 Qb8 Qdd6 f4 Ba3 Bc5 Bb4 Qb7 Ba5 Qb2 Qcc6 Bb4 Bc7 Bc5 Qa4 Bb4 Qc2 Bc5 Re3 f3 Qb6 f2 Rf3 Rhe8 h8N R8e7 Bh1 Rh7 Nf7+ Kh4 Qfc1 f1B Nd6 Bg2 Qf1 Kg5 Qa7 Nb5 Kd5 Nc3+ Kc6 Bb4 Na3 Bc5 Rb1 a1B Nab5 Na4 Qb8 Re3 Qcc1 Qa2 Nc3 Ndf4 Qb4 d3 N2e4+ Kh6 Rf2 d2 Nc8 d1Q Qd4 Qdb3 Nd6 Qac2 Na2 Bc3 Qb2 B3b4 Kb7 Nc3 Re1 Bf3 Qb1 Qcb2 Qbd3 Nfd5 Nd2 Kg5 Qb1 Be4 Qc1 Bb1 Qc2 Ndf4 Bc6 Re8 Rf3 Nd3 Bb5 Re4
3bB2R/qNRQ2b1/r2B1Qn1/1q3qn1/pn2R2p/n1Q1r2P/2b1B3/2k3KN w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 f4 Kf7 Kf2 Kg6 c4 Kf5 d4 g5 h3 e5 d5 h5 d6 a5 d7 b3 c5 g3+ Kg2 h4 b6 a4 c6 b2 c7 e3 b7 Ke4 f5 e2 f6 e1Q f7 g4 Ra2 Qf6 d8Q Na6 b8R Bg7 f8Q Qa5 Bc4 Qb5 Nd2+ Ke3 Ra1 b1N Bf1 e4 Qfe7 Na3 Qdf8 Bf5 c8B Nb4 Bd3 Ra6 Qc7 Ne7 Ne2 Ng6 Bd7 Qf7 Qfd6 Re8 Re1 Re5 Kh1 g2+ Kh2 g1N Rh8 Qe6 Be8 g3+ Kg2 Qc8 Qf6 Nf3 Qb3 Qe6 Qd7 Ng5 Bb2 Qed5 Rac1 Qdc5 Kh1 g2+ Kh2 Re7 Be5 g1B+ Kh1 Qa7 Bd6 Bf2 Qc2 Re6 Nb3 Bg3 Bf8 Bc7 Kg1 Bd8 Na5 Re5 Qc5+ Kd2 Bd6 e3 Ng3 e2 Nb7 Be4 Rc4 Re7 Rec1 e1Q+ Bf1 Qd1 Nh1 Qf3 Be2 Qf5 Rd4+ Bd3 Rf4 Re3 Re4 Bb1 Qce5 Bd3 Rc7 Bc2 Qc3+ Kc1
q2B1kq1/nn3bR1/5QRb/1r3p2/1RP1N3/n1NBqK2/1rr1r2p/3NB2Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 f5 c4 h5 g4 a5 e4 d3 g5 a4 e5 d4 b6 h3 b7 f3 g6 h2 g7 h4 e6 a3 b5 h3 b6 a2 e7 d2 Qc2 d1Q Ne2 d3 Rg1 h1Q Nec3 d2 Rg2 h2 Qb3 Qe2+ Kg3 d1R Nb5 f2 Bh6 Rd5 Qb2 Na6 b8Q Nc5 b7 Be6 Bg5 Bf7 N1c3 Qg1 Qd6 Rb8 Rb1 a1N Qf6 Nc2 Nd1 Na3 Qa1 Qd2 Bd3 f1R Bh4 Rf2 Nbc3 Qa2 Rb5 Rc2 Rb4 Re5 Bg5 Ree2 Kf3 Qb3 Rg4 Qa4 Bd2 Qa8 Rg6 Qb6 Be1 Rh3+ Kf4 Rg3 Qc1 Rgg2 Kf3 Rb2 Qb1 Rec2 Qa1 Rge2 Qb1 Nh6 g8R Ng4 R8g7 Ne5+ Kf4 Nc6 Kf3 Na7 Qa1 Kd7 e8N Qd8 Nd6 Qd4 Nde4 Ke8 Rh7 Bh6 Rhg7 Kf8 Qb1 Rc8 b8B Nb7 Bf4 Rc5 Bc7 Rb5 Qc1 Qe8 Bd8 Qc5 Qe3 Qce7 Qg1 Qe6 Qh1 Qec8 Nef2 Qe3+ Kg2 Qce6 Qd4 Be8 Qh4 Qc5 Kf3 Qg8 Qf6+ Bf7 Nfe4 Qe3+
2RR1N2/N2b2qK/rB1Rn3/b1r1p3/1n1p1Qbn/1QPQ1rbB/2q5/4kB2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 b4 Kg5 b6 Kf4 b7 e5 c3 h5 f3 Kg3 b5 Kf2 b6 a5 f4 d5 g5 d3 g6 d4 g7 h3 f5 h2 f6 a4 f7 a3 Bb2 a2 Ne2 e3+ Kc1 d2+ Kc2 h4 Kd3 h3 Ke4 Qe7 Qa4 d1Q Nf4 e2 Na3 e1B Ne6 Bd7 Kf5 Na6 Kg6 Nh6 b8R Nb4 g8B Nf5 b7 Qc2 Rd8 Ra6 b8Q Rh7 Rg1 h1B Qbb5 h2 Qd3 Bf3 Nb5 h1R Qb3 R1h3 Na7 Bg4 Ba3 Rf3 Rh1 Rh8 Rh6 Rh7 Rb1 a1N Rc8 Bd2 Bh3 Bf4 Rb2 Ke1 Ra2 Nc6 Bc5 Nb4 Bb6 Bg3 Ra5 Rh8 Rd8 Rh7 Rc5 Rh8 Rcc8 Rh7 Qd5 Nb3 Q5c4 Nc5 Qb3 Bg7 f8Q Bf6 Qf7 Bg5 Nf8 Ne6 Qf6 Rh8 Bf7 Rg8+ Kh7 Nh4 Ng6 Qf8 Qf4 Be7 Bf1 Bd6 Bh3 Bc7 Bf1 Qe7 Nf8 Qf6 Bg6 Qg5 Bf5 Rg6 Bc5 Ba5 Bb6 Rf6 Bc5 Rc6 Bb6 Rc5 Rg6 Nc7 Rh6 Rfc6 Rd6 Ne6 Bc7 Ra6 Bb6 Bh5 B5h3 Bg4 Ng6 Qf6 Nf8 Qg7#
2Qb4/kr3N1N/4qR1q/2prq1BR/r3PRBn/2qQ4/2b1N1Qp/n1Kn4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 g4 c5 d4 Kc7 Kd2 Kb7 b6 a5 e3 h5 g5 f5 g6 f3 g7 f4 b5 f2 d5 h3 d6 c3+ Kc2 h4 d7 f3 Bd3 f1R Qe2 h2 Bc4 h3 Bb2 f2 Ba3 a4 Nf3 Nh6 g8R Qc7 d8Q Nd7 Nfd2 Ne5 Qd7 Ng6 Nf3 Rd1 Ne5 f1Q Bc1 a3 Qdd3 a2 Nf7 Nf5 Be6 Ngh4 Rg6 Be7 Rf6 Rh7 Qg2+ Qc6 Bd2 Ra4 e4 Bd8 Bh6 Bd7 Bg5 Qf4 Rf1 Ka8 b7+ Ka7 b8N Qe5 Rf4 Be8 Nd7 h1Q Nf8 Ne3+ Kb3 c2 Nc3 c1Q Ne2 Rd2 Bg4 Nd1 Rb1 Rg7 Nh7 Qe1 Rb2 h2 b6+ Kb7 Rc2 Qce6+ Rc4 Ka6 b7 Qg3 b8Q Qe3 Qc3 Rd5 Qc8+ Ka7 Qd3 Qa3+ Kc2 a1N+ Kb1 Qac3 Rb4 Bb5 Rb3 Bc4 Rb6 Bb3 Rh6 Qh3 Rh5 Bc2+ Kc1 Qh6 Nh8 Rb7 Rbf6 Bc7 Nf7 Bd8 Bf3 Qhf5 Bg4 Qfe6
2kq1BQN/2q3nn/2n4P/1K2B1Q1/2p1N3/1p1nN1qr/1b2b1QR/1Br2r1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 g5 Kd3 f5 Kc4 c5 a4 g3 h4 b3 e4 g2 e5 b2 h5 f3 d6 f4 a5 f2 d5 g4 a6 f3 a7 g3 Nc3 b1Q Bh6 Qh7 Qd2 Nc6 Rh2 Bg7 Bd3 f1R Bb1 f2 Kb5 c4 Nd1 Nf6 Nf3 g1N Ng5 g2 Ne4 Nh3 Qg5 g1Q Ne3 Rb8 a8Q Nf4 Qa2 Nd3 Qe2 Qg3 e6+ Ke8 e7 Bg4 Qd2 Kd7 e8Q+ Kc8 Qg8 Be2 Qb2 Rc1 Qc2 f1N d7+ Kc7 Qa2 b6 d6+ Kb7 Ng2 Ne3 Qb2 Nf5 Ne3 Nd5 Qd2 Bb2 Bf8 Ng7 h6 Nf6 Qc2 Ra8 Qd2 Ra3 Qc2 Qb8 d8N+ Kc8 Nf7 Qc7 Qd1 Qd8 Qf1 Rac3 Qg2 Rb3+ Ka6 b5 d7+ Kc7 Ne5 b4 Ng6 Rbc3 Kb5 b3 Qf7 Rg8 Nh8 Rf1 Qe6 Rcc1 Qe8 Qa8 d8B+ Kc8 Qeg6 Qab8+ Bb6 Qbc7 Bbc5 Qd8 Bfd6 Re8 Be5 Re7 Qf7 Rd7 Qg8 Rd4 Nd2 Rh4 Ne4 Rh3 Bb4 Qf5 Bf8 Nh7 Ra7 Qff4 Rd7 Nc5 Rd1 Nd3 Re1 Qf7 Rd1 Qfc7 Re1 Rf3 Reh1 Rff1
2q1Qqq1/b2R2bN/Q6P/2pB1nRr/3N1bbR/2BKQ3/2rnpr1N/6k1 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kf7 f4 Ke6 h4 Kf5 b4 e5 d4 a5 d5 g5 h5 e3 d6 Ke4 f5 c3 f6 c2 f7 g3 d7 g2 b6 g4 b5 g3 b7 a4 b6 a3 Rh3 a2 Ba3 c1B Bb2 Ne7 Ba3 Nbc6 b8N Na5 b7 Nc4 Nf3 g1Q Nh4 g2 Nf3 Ra5 Qa4 Rc5 Bb4 Qf2+ Kd1 g1Q Nc6 Qg8 b8Q Bg7 Ncd4 Kf4 Qaa7 e4 Qa6 Kg4 Rh4+ Kg3 Bd3 Kg2 Nh2 Kg1 f8Q Rf5 Nc3 e2+ Kc2 e1R+ Be2 e3 Ne4 Qf1 Bd3 e2 Ng5 Qh3 Qbb7 Rf2 Qbf3 Bf4 Be4 Rc1+ Kd3 Nd2 Qe3 c6 Qf7 Qdf8 d8R Rh6 Bc3 Rh7 Nf1 Rc2 Qe8 Qd7 Bh1 Qc7 Rb1 Bg4 Rb5 Qc8 Nh2 Rh8 Rd7 Rh6 Rb6 c5 Rc6 Nf5 Rg6 Bge5 Bg2 Bb8 Bd5 Ba7 Rgg7 Rg6 Nh7 Rg5 h6 Rh5 Nb3 Nf1 Rg5 Nd2 Bb4 a1B Ba5 Bh8 Nd4 Bhe5 Bc3 Bg7
q1b3k1/2N2N1R/1rQ1qQP1/3qbbrp/n1p1b2n/3BB3/2RK4/1Q2nRN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 h5 e4 f5 d4 Kf7 g4 c5 d5 a5 b6 c3 b5 c2 d6 f3 g5 h3 e5 f4 d7 f2+ Ke2 h2 b7 c4 b6 f3+ Ke3 a4 Bb2 c1N Ne2 a3 Qd2 a2 Qa5 Rh6 Na3 Na6 b8R Ne7 b7 Rb6 e6+ Kg8 g6 Nf5+ Kd2 Nc5 e7 Na4 e8Q Nh4 Qae5 Ra5 Ng1 Nd3 Bc1 Ne1 Bd3 f1B Qf6 f2 Nb5 Bh3 Nc7 f1Q Qe4 Qe8 d8N Qe6 Qc6 Bd6 Nf7 Rg5 Rb1 a1Q Rb2 Qff5 Rc2 Bg4 Ra8 Qfd5 b8Q Be5 Ra7 Bf5 Qbb7 Ra6 Qb1 Qa2 Ke2 Qa1 Be3 Rb6 Kd2 Qa2 Nh3 Qa1 Rf1 h1B Ng1 Bhe4 Nh8 Qa3 Na8 Nc3 Rh7 Qa6 Nc7 Qa8 Nf7 Na4
Kb1N2R1/3B2q1/2n2p1r/1Q1Q2Bp/1N3qr1/P1Rr4/rk2n1BR/b1N3qb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 c5 d6 h5 d7 b5 d5 h3 g5 f3 g6 f2 g7 h2 d6 f6 Ba3 b3 Bb2 b4 Bd4 b2 Be3 b3 Na3+ Kc3 Kd5 b1R Nc4 b2 Bh6 Qe7 d8N Nc6 e4 Bb7 Ne5 c4 d7 Nd4+ Nec6 Ne2 Bg5 Rh6 Bg2 f1Q e5 Qf4 e6 Qf7 Qf1 Bd6 Bf3 Bb8 Bg2 Ne7+ Kc5 Ra4 Kb6 Rd1 g8R b1Q+ Nb4 Nc6 e7 Rd3 e8B Qg7 a3 Qd1 Rc1+ Kb2 Rc3 Qe1 Nf3 Qf2+ Nd4 Qg1 Nf7 Ba8 d8Q Bb7 Qd5 Ba8 Rc1 c3 Nd8 c2 Bd7 Bb7 Qf2 Ba8 Nb3 Bb7 Qfc5 Ba8 Rf1 c1B Rf3 Bd2 Nc1 Bc3 Qdd4 Kb1 Qdd5 Ba1 Re3 Kb2 Qb5 Qgf1 Rg1 h1R Rh3 Rh2 Rh1 Qg1+ Re3 Rd4 Rc3 Rd2+ Qd4 Rh3 Rh2 Rhd3 Qdc5 Kb1 Qd4 Ra2 Qdc5 Kb2 Qd4 Qe1 Qdd5 Qg1+ Qdc5 Qgd4 Bgh3 Qfe5 Nc2+ Nb4 Bf1 Bh1 Bg2 Qf2 Kb7 Qg1 Qd5 Qf5 Nb3 Nc6 Nc1+ Rb4 Ka8 Qff1 Qa4 Rg4 Nb4 Qf3 Qab5 Qf4
3qr3/1b1KBR2/1k2pB1Q/n1N5/nr2P1Bq/Q4rq1/Qr4Np/1b3RNb w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Qd3 Bh6 Qd2 fxg4 Qd1 g3 Bd2 g4 Bc1 Bg5 hxg5 Kf8 Nd2 Kf7 Nb1 Ke8 Kd2 h5 Kd3 b5 Ke4 d5+ Ke5 Kd7 a4 Kc6 f4 h4 c4 b3 e4 h3 f5 g2 c5 h2 f6 e6 g6 g3 f7 b2 f8B b4 g7 d3 a5 d2 a6 d4 a7 d3 Na3 b1R Qe1 d1B Nc4 d2 Be7 b3 Ra5 b2 Qe3 Rh3 Be2 Nf6 g8Q Bb7 Bg4 Nd5 Qg6 Bf3 Qgh6 d1Q Qa3 Qe1 Bcg5 Nb6 Ne3 Na4 Bgf6 Kc7 c6 Kb6 c7 Nc6+ Kf4 Rc8 Rf5 Na5 Ke5 Rb8 a8Q Qf2 Ne2 g1R Ng2 Rge1 Ng1 Re2 Rg5 Rd2 Rg7 Rd4 Rf7 Rb4 Nh4 g2 c8N+ Kc6 Nd6 Kb6 Nb5 Qe1 Nd4 Rg3 Nb3 Rc8 Nh3 g1Q Nc5 Qge3 Rf1 Bh1 Ng2 Rf3 Ng1 Qh4 Qa2 Qef2 Qa3 Qfg3+ Nf4 Qg8 Kd6 Re8 Kd7 Rc1 Qa2 b1B Ng2 Rc2 Qb8 Rcb2 Qd6+ Kb5 Qd3+ Kb6 Qda3 Qb8 Bh3 Qgg3 Bg4 Qd8+
4q3/b3nn2/BRnp1r1R/2RP2p1/4k1rB/2qNNN1q/Qr4Qb/K1Q1n3 w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c4 hxg4 Bh3 b5 Nc3 b3 Nb1 b4 Bg2 Ba6 Bf1 Bb5 cxb5 Bd6 Nf3 Bc5 Ng1 Bf8 d4 Ke7 Kd2 Kd6 h4 Kd5 a4 f5 b6 g5 a5 c5 b7 g3 a6 b2 Kc2 f3 e3 b3+ Kc3 f4 h5 f2 h6 c4 a7 f3 h7 g2 Rh2 Nh6 Rh3 Qe8 Ra5+ Ke4 d5 Bd6 Rc5 Bh2 Na3 b1R Nc2 d6 Bd2 b2 Be1 Nc6 b8R Rf8 h8N Rf6 Rb6 Nf7 Rh6 Rc8 Be2 f1Q a8Q f2 Nf3 g1B Ng6 Qh3 Qa2 f1N Bh4 Ng3 Nf4 Nf5 Nd3 Nfe7 Qc1 Rb8 Bf1 Ra1 Be2 b1N+ Kb2 Nd2 Nce1 Nb3 Ng2 Nbd4 Bf1 Nc2 Be2 Ne1 Bf1 Kf5 e4+ Kg4 e5 Kf5 e6 Ke4 Ne3 c3+ Ka3 c2 Kb2 Ng8 e7 Rb7 Qb3 Ra4 Qa2 Rc4 Ka1 Rb4 Qcb2 c1Q+ Qbb1 Qc4 Qc1 Rb2 Be2 Qc3 Bf1 Ra7 Be2 Ra4 Bf1 Qd8 e8Q+ Nge7 Qd7 Qe8 Qg4+ Bf4 Qg2 Bfh2 Nd1 Kf5 Be2 Rg4 Ne3+ Ke4 Nb4 Qd2 Ba6 Qc3 Nd3 Qa3 Rcb5 Re2 Nd1 Nc8 Rb7 Ba7 R7b6 N8e7 Rc5 Rb2 Ne3 Qc3
Qb5k/N1Q2Q1n/b1p1n2B/5p1r/NrK5/q1RRN1Pq/1rB1rR2/b5q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 a5 e4 f5 Ke2 Kf7 d4 Kg7 e5 h5 e6 c6 b6 h3 b5 c3 Kd3 a4 g3 c2 e7 h2 e8Q a3 b7 f3 b6 a2 d5 f2 d6 h4 d7 h3 Kc4 Bd6 Nd2 Qe7 d8R Nf6 Qdh5 Nbd7 b8N Nf8 b7 N6h7 Bd3 f1Q Ne2 Qg1 Na6 Ne6 Nd4 Bb8 Nf1 Qa3 Nc5 Ra5 Ne3 Rb5 Na4 Rb2 Bd2 c1R+ Bc2 Re1 Nb5 Re2 Rf1 a1B Na7 Rf8 Rf2 Kh8 Qe7 Re8 Rd4 Rd8 Qg6 Rd5 Qc7 Rdb5 Qgf7 Qe1 Rhf1 h1R Rf3 h2 R1f2 Qf1 Rd3 Qh3 Nc3 Rg1 Na4 h1Q Nf1 Q1g2 Bh6 Rh1 Rc3 Qg1 Rfd3 Qhg2 Ne3 Rh5 Qcd7 Qh3 Qde7 Bd6 b8Q Bc7 Qa8 Bb8 Qd6 Ba6 Qdc7 R5b4#
4N3/1bq2r2/P4n2/kr1bQ1Qp/p3nqBr/BR2qN1K/1b1RQ2B/N3q3 w - - 0 1 illegal: No possible last move
1KQ5/3q4/p1Nb1NRP/pqq1Qn2/1BR3Rr/n2bQ3/N1r2b2/n2k1Bq1 w - - 0 1 illegal: No possible last move
2nQn3/1R1B2q1/p4pR1/Pqk1B1Nr/n4Q1b/Nb3Q1r/rR4K1/3Nq1r1 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 Kf2 Kd7 e4 Kc6 a4 h5 d4 b5 g4 f3 g5 c3 e5 b4 e6 c2 g6 h3 g7 h2 e7 h4 e8R h3 Qd3 b3 Nc3 b2 Rb1 Nf6 g8Q Qe7 Bf4 c1R Qg5 Be6 Be5 Nbd7 Rb8 Nb6 Rb7 Bb3 Nd1 Nc8 Qf4 Ne8 Qc3 Rh5 Bb5+ Kd5 c6 f6 c7 Bh6 Qd3 Bg5 Bd7 Qg7 Kf1 f2 Nf3 Bh4 Rg1 h1R Ng5 h2 Kg2 Rc3 Qdf3+ Kc4 d5+ Kc5 d6 Re3 Ra1 b1N Ra2 Nc3 Rb2 Rd3 Bb5 Re3 d7 Re1 d8Q Re3 Kh3 f1Q+ Rgg2 Re1 Bd7 Qb5 Rg4 Reg1 a5 a6 Rg3 Na4 Rg4 Rg2 Rg3 Rhg1 Rg4 Ncb6 c8N Rc2 Nd6 Nc8 Nc4 h1Q+ Qh2 Rd2 Na3 Rc2 Qf1 Qe4 Qhf4 Qe1 Q1f3 Ra7 Rb1 Ra2 Rb2 Rh1+ Kg2 Rh3 Rb8 Rc7 Rb7 Rc6 Nh7 Rd6 Rg6 Rd3 Ng5 Rh1 Q3e4 Rdh3 Qef3 Rg1+
1N1B2qq/6Qp/2p2r2/1nkb1BKR/Q1r1Q3/b3nnR1/PrN2R1B/1q3r2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 g4 f5 e4 b5 d4 c6 g5 h3 g6 h2 g7 b3 Ne2 b4 Ng3 b2 Bd3 b3 Na3 b1N Nh5 b2 Nc2 Nc3 Nf6 b1Q Nd7 Nh6 g8Q Nb5 Qg7 Ng4 Rg1 h1R Rg3 Ra4 Be3 Be7 Bg1 Rc4 Bh2 Qb2 Rc1 Qg8 Ra1 Ne3 e5+ Kc7 e6 Ba3 e7 Kd6 e8Q Rf1+ Ke2 Qb1 Qe4 f3+ Kd2 f2 Ke2 f4 Kf3 Nf5 Kg4 Ne3+ Kg5 Qb2 Qg4 f3 Re1 Ba6 Re2 Rb1 Qh4 f1Q Rf2 Qc3 Qhg4 Rb2 Qh4 Qb1 Qhg4 Kc7 d6+ Kb7 d5 Qd4 Nc5+ Kb6 d7 Bc8 d8R Nd7 d6 Ne5 Na6 Be6 d7 Bd5 Nb8 Kc5 Rf8 Qc3 d8B Qd4 Rd2 f2 Rf5 f1R Rdf2 Nf3+ Kh6 Qf7 Rh5 Rf8 Qgf4 Qg8 Qh4 Nd2 Kg5 Rf7 Qf3 Rf6 Bf5 Qe5 Qfe4 Qee8 Qhf4 Qh8 Qh4 Qeg8 Qhg4 Rc3 Qa4 Rc4 Qe4 Nf3+
B2n1b2/Rr2R1Np/qp2Pbr1/2kr4/2N5/1B1Q2N1/RQ4bn/nqK1B1b1 w - - 0 1 illegal: No possible last move, all moves rejected
1BqK2n1/2RnrPn1/Q2N2R1/4rB1p/1pNkB2r/4q2R/rq5b/1bQN4 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kd4 h5 Kc5 Ke5 f4+ Kf6 d4 e5+ d6 b5 g4 e3 a4 h3 f5 e4 d5 Ke5 f6 h2 f7 e2 g5 e1R a5 e3 a6 b3 a7 e2 g6 b4 g7 c6 Nh3 b2 Nd2 b1R Nf2 Qc7 Bh3 Qb7 Bf5 Rb3 Ra3 Rh3 Rc3 Rh4 Bb2 Rh6 Qc1 Re6 Nd1 Re7 d7 Qa6 d8Q Qb7 Bc2 Bf5 d6 Be4 Qb6 Nd7+ Kc4 c5 Kb5 Bg6 Nc4+ Kd4 Bf5 Re5 Ka5 Be7 Qa6 Bh7 Rg1 h1N Rg6 Ng3 Ba1 Bg5 Bb2 Bf4 Ba1 Rae8 a8B R8e7 Bb2 Rg1 Ba1 e1Q Bb2 Qb8 Bae4 Qb7 Ba1 Qe3 Bb2 Nb6 d7 Rg2 d8N Nd7 Ba1 Ra2+ Ra3+ Qc3 Rc6 Qb2 Rc7 Ngf6 g8R Bg6 Be6 Nf5 Rg7 Bh7 Rg6 Ng7 Bg4 Ng8 Bgf5 Qa7 Kb5 Bh2 Kc6 Qb8 Nb7 Qa8 Nd2 c4 Rh3 c3 Nc4 Qc8 Nbd6 c2 Qh6 c1Q Qf4 Qcc3 Qc1 Nf8 Kb6 Qe3 Kc6 Qd7+ Kb7 Qc6+ Kc8 Nd7 Kd8 Qb5 Qb1 Qbc3 Bb2 Qb7 Bc1 Qb3 Bd2 Qb2 Qc1 Ndf6 Be1 Nd7 Bg3 Ngf6 Nc8 Rc5 Bd5 Qe4 Bg4 Qf5 Rh6 Re4 Rc6 Qe6 Bb8 Ng8 Rc7 Re1 Bdf3 Bb1 Bf5 Qee2 Rb6 Qed2 Bd5 Re7 Bde4 Rce5 Rg6 Qe3 N8d6 Qc8+
2RrK3/R1QrQP1p/Q1q1Bbq1/1Rqb4/1n2r3/1rNnNB2/b4p2/B1k5 w - - 0 1 illegal: No possible last move
3Qrn2/N3rp2/Q4b2/2KN1P2/Rq1Br1p1/2Bb1Nbk/1rB3Rq/n5nQ w - - 0 1 legal: proof: e4 b5 b4 h5 a4 d5 g3 dxe4 g4 hxg4 axb5 c5 Bc4 cxb4 Be2 Nf6 Bf1 Ng8 Ke2 Kd7 Ke3 Ke6 h4 Kf5 f4 e5 c4 a5 d4 g5 c5 b3 c6 b2 h5 g3 h6 g2 b6 a4 h7 a3 d5 a2 c7 Qd6 b7 Ne7 Qd2 Kg4 f5 Ra4 Qd3 Na6 b8Q Ng6 Qc2 Nc5 Rh5 Ba6 c8Q Nb3 Qa8 Bd3 Nf3 g1N Nc3 b1R Qca6 Rb2 Qd2 Qb4 d6 Bg7 d7 Nf8 d8N Bf6 Bg2 Kg3 Qd5 g4 Rh2 Rg8 Bf1 Rh8 Rg2+ Kh3 Nc6 Rg8 Rb1 a1Q h8B Qa2 Na7 Na1 Bg7 Rh8 Qd1 Rg8 Bd2 Rh8 Qd8 Rg8 Nd5 Rh8 Kf2 e3+ Ke1 e4 Bc3 e2 Kf2 e1B+ Ke3 Bg3 Qc1 Bfh4 Bgd4 Bf6 Qe1 Ne6 Be2 Re8 Bd1 Nf8 Bc2 Bf2+ Kf4 e3 Rc1 e2 Rd1 Nb3 Ra1 B2h4 Qc1 e1R Qb1 R1e7 Qe1 Be4 Ke3 Bg3 Qef1 Qaa3 Ra2 Na1 Qc1 Qb8 Qb1 Qad6 Qc1 Rc4 Ra4 Qbb4 Qd1 Bgh4 Qb1 Qh2 Qe1 Bg3 Qd1 Ne2 Qh1 Bd3+ Be5 Nf4 Qc7 Bf1 Qd8 Ne2 Kd3 Re4 Bed4 Qa3 Kc4 Ng1+ Bd3 Qb3+ Kc5 Qb7 Bb1 Bd3 Bc2 Qb4+
r1k1r3/4p2B/r3NP1n/N2pbb1q/3K2nb/q6R/1RqQQr1N/BQ4R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 b4 d5 c4 Kd7 f4 d3 Ke3 d2 g5 h3 b6 h2 b5 a4 c5 a3 f5 h4 c6+ Ke8 f6 a2 b7 h3 c7 Kd7 g6 Nc6 b8R Rh6 b6 Bg7 b7 Ne5 Bd3 Ng4+ Kd4 e3 Qe2 d1Q Nc3 Rh8 Bb2 Bh6 g7 Qc2 Bh7 Bf4 Nb5 N8h6 Nf3 Re8 Rag1 a1R g8Q R1a6 Ba1 Bd6 Qd2 e2 Qg6 e1B Qgd3 Bh4 Qf1 Kc6 Qfe2 Bf5 c8N Kd7 Nca7 Qa5 Nc7 Qa3 Ne6 Bf4 Nc6 Bfg3 Rg2 Bd6 Rhg1 h1R Rg3 Rh2 Na5 Rf2 Nh2 Bc7 Nf1 h2 Rh3 h1Q Nh2 Rg8 Rc8 Re8 b8Q Qhf3 Qb1 Bcg3 Rc3 Qh1 Rd3 Kc8 Rb3 Qf3 Qbd1 Ne5 Qdf1 Qh5 Qb1 Neg4 Rb2 Be5+
1KB2R1Q/1r2p1b1/1R1pP2b/1B1qN1Q1/4rnnb/4nRb1/2q2Q1B/1q1k1N2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h3 g5 Na3 g3 Rh2 g4 Bd2 g2 Rh1 g3 Nb1 Bb7 Bh6 Bf3 Bc1 Bg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 Kd2 Kf7 Kd3 Kg6 Ke4 a5 Kd5 h5 b4 a3 e4 a2 f4 a4 c4 d3 b5 d6 c5 a3 b6 d2 c6 h4 f5+ Kg5 e5 Kf4 f6 Ke3 b7 h3 e6 h2 g5 Na6 b8Q Ra7 c7 Nc5 Kc6 Nh6 c8B Rb7 g6 Qc7+ Kd5 Nd3 g7 Qc2 Nf3 g1B g8Q g2 f7 Bf2 Qc7 g1B Qd8 Be1 Be2 Bgf2 Rf1 h1Q Bb2 Rh7 Be5 Rg7 Bg3 Rg4 Bh2 Bh4 Qg5+ Rf4 Qc1 Beg3 Qe1 d1N Nd2 Ng4 Rb1 a1B Rb6 Bh6 Qh8 a2 f8R Bag7 Rf2 a1Q Qf1 N3b2 Bb5 Qab1 Qg2 Nd3 Ne5 N1b2 Rf1 Nc4 Rf2 Qhd1 Kc6 Qh1 Qf5 Rd4 Qg5+ Nf4 Rf1 Re4 Rf2 Qhd1 Rf3+ Kd4 Qf2+ Nce3+ Bc4 Kc3 Nf1 Qcb2 Be2 Kc2 Bb5+ Qd2 Rf5 Kd1 Rf8 Rb8 Kc7 Qd5 Bcd7 Rb7+ Kc8 Rc7+ Kb8 Q2c2 Bc8 Rb7+
5n2/K3p2Q/brp1P3/Qr2qQ1N/BNB5/b1kn1nRq/1R2B1bq/4Nq2 w - - 0 1 legal: proof: f4 a5 g4 g5 b4 axb4 c4 d5 cxd5 h6 Bb2 Ra7 Bf6 gxf4 g5 Ra4 g6 Ra8 Bg5 hxg5 Kf2 Kd7 e4 Kd6 h4 Ke5 a4 Kd4 g7 f5 e5 b5 a5 f3 a6 b3 a7 b2 d6 f4 d7 g4 h5 b4 h6 b3 h7 Ba6 Be2 Nf6 g8B Bg7 Nc3 b1B Bgc4 b2 e6 Rg8 h8Q Nh7 Ra2 Nf8 Qf1 Be4 Rh3 b1N Rb2 Nc6 Rg3 Ne5 Qh7 Rb8 a8B Rb6 Nd5 Qb8 d8Q Bh6 d3 Nd2 Nf6+ Kc3 d4 Rg5 d5 Rf5 d6 Bg5 Ke1 Nd3+ Kd1 f2 d7 f3 Nh5 Rfb5 Bc6 Be3 Qh3 Bc5 Qf5 Rb4 Ba4 R4b5 Qh7 Ba3 Qf5 Kd4 Kc2 f1Q Qh7 f2 Nf3+ Ke3 Ne1+ Kd4 Qf5 Nf3 Qh2 Qh3 Qh1 Bb4 Kb3 f1Q Qh2 Qb7 Qa8 Qd5 d8N Qe5 Qa7 Nh4 Qa8 Bg2 Qh1 Nf3 Nc6+ Kc5 Qd8 Ba3+ Nb4 c6 Qc7 Kd4 Qh2 Rb8 Qa5 R5b6 Bab5 R8b7 Ka4 Kc3 Qh7 Bh1 Qf2 Bg2 Qc5 Qf4 Qcf5 Qe5 Bb3 Rb8 B5c4 Rb5 Bc2 R8b6 Bcd1 Rb7 Qc7 Bh1 Rg2 g3 Qb6 Rd5 Qb5 Rb8 Ka5 Rc5 Ba4 Rd5 Rf2 g2 Qc5 g1Q Rg2 Qgf2 Rg3 Qfh2 Qb5 Bg2 Qc5 Ra8 Kb6 Rb8+ Ka7 Rb6 Qa5 Rdb5
1Bn4B/R2PNrpk/qpRq1b2/5rqK/2Qr3Q/1n4N1/b2n1qB1/N1Q5 w - - 0 1 illegal: No possible last move, all moves rejected
q3Br2/r1bpRB2/R3Q1q1/rqn1n1k1/3Pp3/1n1BN3/1K1Qr1N1/2Nb2R1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Ba3 g5 axb5 gxh4 b6 Bb7 b5 Bc8 Bb4 cxb4 c4 Kf7 f4 Kg6 g4 a5 d4 h5 Kd2 e5 Kc1 e3 g5 e2 b7 e1Q c5 b3 b6 e4 c6 a4 c7 a3 Ne2 a2 Rg1 h3 Nd2 h4 Nc4 h2 Kb2 h1R Qd2 h3 Ne3 h2 Nc1 Ne7 Be2 Na6 b8Q Nc6 b7 Bd6 Qa7 Qg3 b8R Rh5 Qb6 Ne5 Bd1 Bb7 c8B Bc6 Bb7 Qg8 Re8 Nc5 Ba6 Ra7 Re7 Qa8 Bd3 Bc7 Bf3 Rh8 Qa6 Qg4 f5+ Kh5 f6 Rf8 f7 Ba4 g6 Kg5 g7 Qg2 Ka3 b2 g8B b1Q Bh5 Qb5 Qe6 Bb3+ Kb2 Ra5 Rd1 Re1 Bg6 Re2 Rg1 h1R Bh5 Rc8 f8N Ra7 Bhf7 Rh5 Ng6 Rf8 Nf4 Qg4 Be8 Bd1+ Kc3 Qg3 Bgf7 Qg4 Nfg2 Qg3 Rb1 a1N Rb3 Qg4 Ra3 Nab3 Ra5 Qf5 Ra6 Qg6 Qe1 Ra2 Qd2 Ra5 Kb2 Rh3 Be2 Rf3 Bf1 Rf2 Bd3 Re2
k2b4/2pq2n1/r3rB2/1Rnq2QB/1NQRr3/1p3BRN/1q1n3P/1rQ1Kb2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 a4 g5 d4 f5 a5 b5 a6 g3 e5 f3 d6 Kc6 a7 Kb7 e6 g2 e7 g4 e8B g3 d5 f4 d7 f2+ Ke2 b3 d6 f3+ Kd2 b2 Na3 b1R Bf7 b4 Ne2 g1Q Qa4 g2 Nc2 b3 Nf4 Rh4 Nd3 Nh6 Nf4 Na6 Bb5 f1R Qc4 f2 Ra2 Be7 Bh5 Nf5 Nh3 Re1 Bb2 Re6 Bf6 Rhe4 Nb4 Nc5 Ra5 Ng7 Bf3 Qe8 d8Q Qd7 Qg8 Qf1 Rg1 Bd8 Qc1 Qc4 Bc6+ Kb6 Bh5 Ba6 Rd1 g1Q Qf7 Rf4 Bcf3 Rfe4 Qg8 Kb7 Rb5+ Kc8 Qf7 Qg2 Rg1 f1N+ Kd1 Qf2 Rg3 Qb2 Qg6 Nd2 Qg5 Rb8 a8Q Qd5 Qc6 Rb7 Na2 Kb8 Nb4 Qf5 Qd5 Ka8 Qd3 Ra7 Qc4 Qc6 d7 Qcd5 Qe2 Qh7 Ke1 Qhf5 Rb7 Bc4 Rb6 Ra6 Rb5 Rd4 Qe4 Be2 Qc2 Rde4 Qc4 Qg4 Bg6 Re7 Qd3 Qdd4 Qf5 Re8 Bf7 Be7 Qg5 Qe5 d8R+ Qc8 Rd5 Bd8 Qc2 Ree6 Qc4 Qd7 Rd4 Qed5 B7h5 Bf1+
8/R1p2NBq/1r1BrnbR/3N4/q1Pbkrq1/Q3nb1p/1rR1Q1B1/6KQ w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 c4 Kd6 b4 Ke5 d4+ Ke4 g4 e5 g5 f5 d5 h5 g6 a5 b6 h3 g7 f4 b7 a4 b5 h2 b6 a3 d6 h4 d7 a2 Qd6 h3 Ba3 Rh6 Be2 Nf6 g8R Nd5 Bc1 Qe7 d8Q Bg7 Qe8 Ne3 Qh5 Nd7 b8B Nf6 b7 Bf5 Qa3 Bg6 Ba7 Rb8 Bf1 Bh8 Rc8 Qh7 Bc5 Bg7 Bd6 Bh8 Ke1 f2+ Ke2 Bg7 Nf3 Bh8 Bg2 f1R Rg1 h1B Bb2 Re1+ Kf2 Bg7 Nd4+ f3 Nb5 Bh8 Bc3 Bg7 Rh8 Re2+ Kg3 Rb2 Kh2 Re8 b8Q Re6 Rd8 Bh8 Rc1 Bg7 Rc2 Bh8 Bf1 f2 Qe2 Bf3 Bg2 f1Q Qb6 Qd1 Qba7 Qd4 Kg1 Rh4 Rb8 Rf4 Rb6 Bg7 Be7 Qd7 Qa8+ Rc6 Bd6 Qg4 Rb7 Rb6 Ra7+ Kf5 Bd4 e4 N1c3 Bh8 Rb1 a1Q Nd5 Qa2 Rd1 Qb3 Rb1 Qa4 B4e5 Nf1 Rd1 e3 Rdd2 Ke4 Bd4 Ne8 Bg7 Nf6 Nb4+ Kf5 Be7 Nd7 Bd4 Rc6 Qf2 e2 Bf8 e1R Nd6+ Kg5 Re2 Bge4 Nf7+ Kf5 Bd6 Rb6 Bc3 Bd3 Re6 Bd1 Rh6 Re6 Qaf3 B1e2 Nd5 Ne3 Qf1 Bg7 Kh1 Bd1 Q3f2 Bf3 Kh2 Bh8 Qh1 Bf6 Kg1 Bg7 Bf6 Bde4 Bfe7 Bd4 Qe2 Bd3 Be5 Bde4 Bg7 Nf6 Nh8 Ke5 Bb4 Bf5 Nf7+ Ke4 Bd6 Bg6
QNb1B3/1PRq1rpR/B3R3/Q1K1b3/3n1N1r/qb4Qq/p1k5/nq4Br w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 f5 h5 a5 c3 d5+ Kb3 g3 b6 f3 c4 d3 h6 d2 b5 d4 e3 f4 c5 d3 Kc4 g2 b7 f2 h7 a4 b6 f3 c6 a3 c7 a2 Ne2 g1Q Nd4 Nh6 Qa4 d1Q Qa5 d2 Nc6 Nd7 b8Q Nc5 b7 Nb3 Kb5 Qe7 Nc3+ Kf5 Rb1 Qa3 Ne2 Ke4 Nf4 Bd6 Rh3 Rf8 h8Q Nf5 Rh7 Na1 Bb2 Rf6 Bd4 Be5 Kb6 Rh6 Ba6 f1R Qf8 Qda4 Re1 d1B Qd6 Ra7 Qa8 f2 Nb8 Bb3 Qg6 Rh1 Qg3 Qg2 Bc5 Nd4 Re2 Bf5 c8R Qh3 Rc7 Bc8 Re1 Qad7 Re2 Rfg1 Re1 f1Q Re2 Qb1 Re1 Kf5 e4+ Kf6 Re3 Rf1 Re2 Ne6 Bg1 Nd4 Nd5+ Ke6 Re3 Rf7 Nf4+ Kf6 Re1 Bd6 e5+ Kf5 e6+ Be5 Be2 Ke4 e7 Qg2 e8B Qgh3 Qb4 Ra6+ Kc5 Rh6 Ba6+ Kf5 Rc1 Ke4 Rc6 Rh4 Re6 Qab2 Rc4 Qc3 Qa5 Qe3 Ng2 Kd3 Rc3+ Kd2 Nf4 Kd1 Kb4 Qec1 Rc7 Qcb2 Kc5 Kc2 Qg5 Q2c1 Qg3 Qa3+
1n2b2Q/1Pnb1pp1/5k2/N1B2q1Q/r1qb1r1N/1B3B2/1R2N1nQ/Rn3K1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 d5 b4 a5 h4 f3 b6 g3 c5 a4 e5 a3 b5 d3 b7 f2+ Kd2 d4 b6 g2 e6 a2 c6 Ra4 h5 Nf6 c7 Ne8 h6 Kf6 e7 Qd7 h7 Qf5 Nf3 g1Q Be2 f1N+ Ke1 Qgg4 Be3 Bd7 c8B Nc7 e8Q Bc5 Nh4 Nd2 Nc3 Nb1 Bf3 d2+ Kf1 d3 Rh2 Qc4 Ne2 Bd4 Qc2 d1B Qg8 Be8 Be6 d2 Qf8 Bd7 Qc5 Re8 Bd5 Re4 h8Q Rf4 Qb2 Bb3 Bf2 d1N Qa5 Bc3 Bc5 Bd4 Qc2 Bg1 Qcd2 Nba6 b8N Be8 Nc6 Nb8 b7 Ne3+ Ke1 Ng2+ Kf1 Bc2 Qb5 Bd3 Na5 Be4 Be6 B4c6 Qc2 Bcd7 Bd5 Qb4 Bb3 Qc4 Bf2 Qg4 Qbh5 Qf5 Bc5 Nc3 Rc1 a1Q Qb2 Qab1 Rd1 Qbe4 Ra1 Qc6 Qd2 Nb1 Qa2 Ne1 Qc2 Qd4 Nc1 Bf2 Bd1 Bg1+ Rf2 Qh1 Bf3 Qb4 Rg2 Qbe4 Qf2 Qb4 Qg3 Qd4 Rb2 Ng2 Ne2 Qc4 Qh2 Bd4+
3n3R/rP1p1NQN/b1bn1bpq/BR2rk2/2K5/1B6/6nr/qnN1R1BQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 b4 f5 c4 a5 e4 g6 h4 g3 b6 g2 b7 f3 c5 f4 c6 f2 e5 a4 b5 a3 h5 f3 c7 a2 h6 Ra3+ Kc4 d3 h7 d2 b6 Ra5 Na3 Nh6 Rb1 a1Q Nb5 Bg7 Ne2 g1R Nd6 Qf8 Rb5 Nc6 b8B Ba6 c8Q Nf5 b7 Nd8 Nf7 Rg5 Bc7 Bf6 Rg1 Ra2 Ba5 Qh6 Qe1 d1N Be3 Ra3 Nc1 Nc3 Bd3 f1N Bc2 f2 Bb3 Rh5 Ba7 Re8 h8R Nb1 Qe4 Ra2 Qh1 Rh2 Qc5 Ra3 Qf8 Ra2 Qg7 Nd6+ Kd3+ Kf5 e6+ Be5 e7 Ne3 Re1 f1B+ Ne2 Bh3 Nc1 Ng2 Bg1 Bg4 Bgb6 Bf3 Bg1 Nc8 Kc4 Nd6+ Kc5 Bc6 Kb4 Rg8 e8N Rf8 Nf6 Re8 Kc5 Re7 Nh7 Bf6 Kb4+ Re5 Bab6 Ra5 Rd5 Bd3 Rc5 Ra7 Ba5 Ba6 Rb5 Ne8 Kc4 Nd6+
2N4b/Pp2qnpn/NR2q2N/3Q2R1/rnbrB3/QB1b3k/5Bn1/qR4K1 w - - 0 1 illegal: Other
1n1BK3/r3QBN1/2b2p1Q/bpnB4/n6N/1r1RqRRN/n4Prk/3n1n2 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a4 d5 axb5 dxe4 b6 c6 b5 cxb5 Ke2 Kd7 Ke3 Ke6 Kf4 h5 Kg5 a5 d4 e3 g4 f6+ Kg6 e2 c4 e1N b7 a4 g5 a3 c5 h3 c6 h2 c7 h4 Nh3 a2 Rg1 h1R Bd2 Ng2 Be2 Rh2 Bf3 Ra7 Qc1 Ne3 Rg2 Bd7 c8Q Nd1 Bc6 Qb6 Rg1 Rg2 d5+ Ke5 Kf7 Qe3 d6 Kf5 g6 Kg4 g7 e5 Nf4 h3 Rf1 e4 Qe8 h2 Nh3 h1N Qe7 Ng3 Rg1 Nf1 Bd5 Bc6 d7 Rh6 d8N Kh4 Qec5 Ne7 g8B Nc8 Ne6 Nb6 Qe7 Na4 Ng7 Rhg6 Bc3 R6g3 Nd2 Kg4 Rb1 a1N Nf3 Nb3 Nh4 Nbc5 Ba5 Rf3 Rb3 Rfg3 Qe8 Be7 Bc7 Bd8 Qe7 Rf3 Bd6 Ba5 Bc7 Qg5 Qd2 e3 Bd8 e2 Rd3 Rfg3 Rf3 e1N Kf8 Nc2 Bgf7 Qe5 Qc1 Nb4 Qh6 Ncd7+ Ke8 Qe3 Be4 Na2 Bed5 Na6 b8R N6c5 Rb7 Nb8+ Rd7 Qa3 Rf5 Rb3 Rf3 Qc1 Rc3 Qf4 Rf3 Qe3 Be4 Nba6 Ng5 Rg3 Rg2 Nb8 Rg1 Bb7 Rd3 Ba8 Bed5 Bb7 N5e6 Kh3 Ng5+ Kh2 Nh3 Rg5 Rg4 Ba8 Rgf4 Rg2 Rg3 Bb7 Rff3 Bc6+
R3R3/3QN3/Nbrp3Q/3b1Qr1/kbN1B1r1/p2KnPR1/6nr/Br4rq w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 a5 g4 e5 c4 h5 b4 d3+ Kd2 e3+ Kc3 a4 f3 e2 g5 e1B+ Qd2 e4 c5 a3 g6 e3 g7 e2 c6 h3 c7 h4 b6 h2 b5 h3 b7 Bf2 b6 e1R Qf4 d2 Qd4 d1R Be2 Rh5 Qb4 Ne7 g8Q Nf5 Qa2 Rd6 Be3 Rg5 Qd5 Ra4 Kd3 Nh4 Qd2 Rc6 Bd4 Bb4 Qf5 Na6 b8R d6 b7 Ng2 Ra8 Be6 c8Q Bd5 b8N Nc7 Na6 Rf1 Bh8 Bb6 Ra2 Ke7 Ba1 Qh8 Qc1 Qh7 Nd2 Qh4 Nc4 Rd1+ Qd2 Rb1 Bf1 Qh8 Ne2 Qh7 Rg1 h1R Nb2 h2 Nd4 Qh6 Be2 Qh5 Re1 Rg1 Nc4 h1R Qb7 Rh2 Qa7 Rg4 Qh6 Ra5 Qb7 Ne3 Qbc8 Ne6 Bf1 Rac5 Rg2 Ra5 Rg3 Qh4 Qch8 Kd7 Be2 Qh5 Bd1 Qh3 Bc2 Qg2 Qh3 Qh1 Q8h6 Rb5 Qff6 Ra5 Nf5 Rac5 Ne7 Nf4+ Kd4 Nfg2+ Be4 Bf7 Kd3 Rg5 Nc5+ Kc7 Qf5 Bd5 Na6+ Kb7 Nc8 Rc5 Re2 Kc6 Ne7+ Kb5 Qd7+ Rc6 Re1 Rh4 Qhf5 Ka4 Ng8 Be6 Bd5 Ng4 Re2 Bf7 Ree8 N4e3 Be4 Rhg4 Ne7 Bd5
4Qb2/1B1NN2k/PqbKrQ2/1b6/R4pn1/r2nr2N/BrR1p3/R2r2Br w - - 0 1 illegal: No proof kernel
1bknR1nQ/Q1Nb1p2/2q1pP1B/R3K1B1/3B1r1r/1r1R2r1/b1N1Qr2/2r5 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b5 Nh6 b7 Ng8 b6 Qd3 Be2 Qd8 Bb5 cxb5 Ke2 Kd7 Ke3 a5 Kd4 h5 c4 e3 g4 e2 f4 e1R d3 e6 f5 h3 g5 h2 g6 a4 c5 b4 g7 a3 Ne2 a2 Ke5 h4 d4 h3 d5 b3 Nc3 b2 Nb5 Nh6 g8Q Rf1 Ned4 b1R Nc2 Ra3 Qe2 Rf2 Rd1 Qe8 c6+ Kd8 f6 h1B d6 h2 d7 Rg3 Rd3 Bd5 Bd2 Rh7 Qh8 h1R Bc1 Rhg7 Bd2 Ng8 Bh6 Na6 b8Q Nb4 b7 Rh4 Qa7 R7g4 b8B Bc5 Bd6 Bb6 Bc5 Bc7+ Nd6 Rc1 Bce3 Bb8 Beg5 Rgf4 Qa4 Kc7 Nb5+ Kb6+ c7 Kb7 d8B Nc6+ Kd6 Bb3 Be7 Nd8 Ke5 Rb1 Bc5 Qc6 Bd4 Rb2 Rg1 a1R Qa3 Raa2 Ra1 Rb1 Qc5 Rab2 Ra5 Ba2 Qe7 Rc1 Qc5 Ba7 Qe7 Rb3 Qc5 Bd7 c8R Bb8+ Nc7 Qa4 Kd6 Nc6 Re8 Nd8 Qa7+ Kc8 Ke5 Qc6
2B1bK2/2BQp3/1N2bPbN/n1Qq1nN1/Bb1R1Qr1/3r3p/k2n3b/1bR5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 b4 Ke6 f4 Kd5 g4 Kc4 b6 a5 g5 d5 g6 h5 b7 a4 c3 h3 f5 a3 f6 e3 Kf3+ e2 Kf4 d3 Kg5 e1B g7 d4 Kg6 h2 Kf7 h4 b5 h3 b6 a2 Ne2 d2 Qc2 d1B Rg1 h1B Ng3+ d3 Ne4 Rh4 Ng5 Be4 Bf4 Nc6 b8Q Ra3 b7 Rg4 Qa7 Na5 b8Q Qd5+ Ke8 Bg3 Qd7 Bh2 Bc7 Nh6 g8N Nf5 Nh6 Bg7 Bg2 d2 Re1 Bdf3 Rc1 d1B Qf2 Ba4 Nd2+ Kd3 Rd1 Kc2 c4 Rd3 c5 Bf8 Qa7 Kb2 Rac1 a1N c6 Ka2 Qac5 N1b3 Nc4+ Nd2 Nb6 Bc2 Qg3 Bb1 Qf4 Be2 Qd8 Be6 Qd7 Re3 Bf1 Bb5 Bd3 Rf3 Bc2 Rd3 Ba4 Bg7 Be5 Bf8 c7 Bg7 c8B Bf8 Ng8 Bh6 Bc7 Bc6 Nh7 Bg5 Kf8 Bh4 Nh6 Be1 Ng5 Bb5 Qd8 Be8 Qdd6 Nh4 Qd7 B4g6 Rc4 Nf5 Rd4 Ndc4 Rc1 Bb4 Bd6 Nd2 Be5 Bg3 Bc7 Bh2
Nk3B2/2p5/b6r/KN1N4/qQ1nr1b1/Q1Rb1Pnb/1n1bp1BQ/R1R4b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 a4 Kd7 g4 e5 d4 b5 Kd2 h5 d6 b3 Kc3 b2 Kb4 e3 a5 e2 f3 e1N g5 e4 d5 h3 a6 e3 g6 h2 a7 h4 g7 e2 Qa4 Ba6 Nc3 Kc8 Ne4 b1B Nd2 Bd3 Bh3+ Qd7 Nb3 Ne7 g8Q Rh6 Qf7 Nf5 Ba3 Ng3 Ka5 b4 Nd4 b3 Qh5 b2 Nb5 b1B Bg2 Qg4 Qb4 Nc6+ Ka4 Bg7 Nh3 Nd4 Nf4 h3 d7+ Kb7 d6 Re8 d8Q Re4 Rg1 h1B a8N h2 Qe7 Kb8 d7 Bf6 Qh3 Bg5 Nd5 Bd2 Ka5 Ba2 Qh5 Bac4 d8R+ Bc8 Bf1 Bg2 Qc5 h1B Qh2 Bh3 Bg2 Qf4 Rd6 Bcg4 Rc6 Bb1 Rf1 Nd3 Rc1 Nb2 Qe7 Bcd3 R6c3 Bc4 Qa4 Bc2 Bc5 B2d3 Qa3 Qf7 Qh4 Qd7 Bf8 Qe8 Na7 Ba6 Nb5 Qc6 Qhe7 Qc4 Qec5 Qb3 Qcb4 Qa4+
R1BB1r2/1R2Q1B1/2Nq2N1/nn5Q/Rnn1bb2/1nb1p1r1/1kN2P1p/3b3K w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c4 Kf7 g4 Ke6 b4 Ke5 g5 h5 b6 d5 b5 a5 c5 h3 c6 h4 c7 d3 g6 Kd4 g7 e5 b7 d2+ Ke2 a4 b6 a3 Qe1 d1N Bg5 a2 Be7 Nc3+ Kd2 Nf6 g8N Qd6 Bd3 Bg4 c8R Ra3 Bb5 h2 Qd1 Nc6 Ba4 Na5 Rd8 Bh6+ Ke1+ Kc4 Kf1 d4 Kg2 d3 Qf1 Nfd5 b8Q Kb4 Nf3 Bf4 b7 d2 Ne1 d1N Qa7 Nb2 Bd7 Kb3 Ra8 Bh5 Nd3 Bg4 Rg1 Bh5 Bc8 h1B+ Kh3 Be2 Rg7 Nb5 Bd8 Nb4 Ne7 Rf8 Ng6 Bd1 Qe2 Nbc4 Qh5 Kc2 Rf7 Rb3 Na3+ Kc3 Ne1 Kb2+ Nf3 Rc3 Nc2 Bg2+ Kg4 h3 Kh4 h2 Nfd4 Rg3 Nc6 e3 Rc7 e2 b8B e1B Qe3 e4 Rb7 Qd7 Be5+ Bc3 Bg7 Bh1 Qec5 e3 Qe7 Rg4+ Kh3 Be4 Rc1 a1N Rb1+ Ka2 Rc1 Nb3 Ra1+ Kb2 Ra4 Bfe5 Bh6 Qd6 Bg7 Rgf4 Kg3 Rf3+ Kg2 Bf4 Kh1 Rg3+
1n2QK2/2B2Qnb/qB2QR2/Rr1R4/2nrp2N/2brPN2/1n2Np2/1rnk4 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 d4 cxd4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 f5 h4 Kf7 b4 Kg6 c4 Kh5 b6 d5 b5 a5 c5 e5 c6 d3 e3 e4 b7 a4 b6 f3 Kg3 a3 Kf4 g3 Ke5 Kg4 g6 a2 g7 d2 h5 g2 h6 d4 h7 d3 c7 f4 Qe1 d1N Na3 f2 Nc4 f1N Bd2 f3 Na3 Nb2 Ba5 d2 Nc4 d1R Rh6 Nf6 g8Q+ Bg7 Ne2 g1R Nd2 Qd3 Qe8 Bf5 c8Q Nh5+ Rf6 Qa6 Kd6 f2 Ke7 Rh1 Nf3 Nd2 Qe6 Ndc4 Qc3 Rd3 Qb3 Rb1 Kf7 Rg8 h8N Ra7 Ng6 Bh8 Qf8 Ng7 Ngh4 Rd4 Qfe7 Rgd8 Qe8 R8d5 Kf8 Rb5 Q6e7 Bh7 Q7f7 Re1 Rd1 a1N Rd2 Rb1 Rd3 Nc6 b8B Rad7 Bc7 Nb8 b7 R7d6 Qa2 Nb3 Bab6 Nc1 Ra3 Rd3 Ra5 R6d4 Nf4 Nc6 b8R Kg3 Rd8 Nb8 Rd5 Kg4 Nhg6 Kg3 Ne2+ Kg2 Nge5 Kf1 Nh4 Ke1 Nef3+ Kd1 Rd7 Na3 Qae6 Nac4 Rd5 Nf5 Rd7 Rd6 Rh6 Bc3 Rf6 R6d4 Rd5 Ng7
2NR2q1/1B6/1rn5/B1N2q1r/2Qpr2n/QQ1Nk2r/1R1RrpbP/1rb3K1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 e4 Ke5 c4 g5 b6 a5 c5 d5 b7 f5 c6 f3 b5 g3+ Ke1 d3 b6 Kd4 c7 g2 Kf2 f4 e5 d2 e6 a4 e7 a3 e8R a2 Re5 g4 Rh5 Ra5 Rg5 Nc6 b8Q Ba3 b7 Rh3 Qe2 d1R Nd2 Nh6 Rg6 Nf5 Rf6 Qg8 Qe1 Nh4 Ne4 Rd2+ Qe2 Be6 Rb1 a1R Rb6 Rb1 c8N Bd7 Rd6 g3+ Ke1 Be6 Qc4+ Ke3 Qa8 d4 b8Q Bd5 Ne2 g1R Rb2 g2 Rd8 Ra6 Nc5 Rb6 Nc3 Be4 N3a4 Bd5 Nd3 Be4 Rc2 R1b5 Bb2 Rh5 Bc3 Bc1 Rb2 Rc2 Nac5 f2+ Kd1 Re2 Qa3 Bf3 Be1 Rc2+ Be2 f1Q Qb7 Bd5 Bf3 Re2 Qf7 Be4 Qcb3 Qf2 Qfc4 Rf1 Rd2 g1R Rb2 Rgg3 Rg1 Rg4 Rg2 Qg3 Rf2 Rg1 Bh1 Bg2 Rd2 Qf3 Rb2 Bf1 Ba5 Qfd5 Be4 f3 Rd2 Qf5 Rb2 Ne7 Bb7 Re4 Rg2 Nc6 Rf2 Rc2 Ke1 Rd2 Ra2 Rb2 Rd2 Rb1 Rab2 Rg2 Qcb5 Rf2 Q5c4 Bg2 Qe6 Bh1 Qec4 Re2+ Kf1 Bg2+ Kg1 f2+
Qnbb1k2/3Qb2R/Q1NB2bR/rB1nrB1N/1KPr1p2/2Rq2bp/3r4/8 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kd2 f5 b4 a5 c4 d5 g4 h5 e4 h4 b5 f3 g6 f4 b6 d3 Kc3 d2 g7 f2 e5 a3 b7 a4 g5 a2 g6 a3 e6 Nf6 g8R Rh6 e7 d4+ Kb4 d3 g7 Kf7 Bh3 f1B Nf3 Ra5 Nc3 Rhh5 Nd5 Re5 Bf5 h3 Rh8 Bg2 Nd4 Be4 g8Q+ Ke8 Qdg4 d1R Qe6 d2 Rh7 Bd3 Rb1 a1B Qa6 a2 Nc6 Bd4 Ba3 a1B Rf1 Bg1 Rf3 Bf2 Qg7 Bc2 Rc3 Bg3 Rb2 Rh1 Ra2 d1R Qg4 Rd2 Qd1 Nbd7 b8Q Rd4 Qba7 Rh2 Qa8 Rhd2 Rh6 Nb8 Rb2 Ng8 Nf6+ Kf7 Nh5 Nf6 Rbb3 Qd5 Rb2 Bb1 Qa4 Qf3 Q4b5 Qd3 Qd5+ Ke8 Qd6 Kf7 e8B+ Kg8 Ra2 Be7 Rb2 Bd8 Qd7 Bc2 Rb1 Kf8 Rg1 Bh4 Rg7 Bg3 Re7 Bb1 Reh7 Nd5+ Kb3+ Kg8 Bb4 Bb2 Bd6 Ba3 Bc7 Bae7 Bd6 Nb6 Kb4 Kf8 Bf7 Bc2 Bd5 Bb1 Bf3 Bc2 Bd1 Bb1 Ba4 Nd5+ Ka3 Qc2 Bg4 Nc7 Kb4 Qe4 Bb5 Nd5+ Kb3 Qe2 Be6 Bg6 Bf5 Nc7 Kb4 Qf3 Na7 Qd3 Nc6 Nd5+
nr1R1R1b/1n6/1BKNr2r/NRBnkP1B/1Q6/np5q/p5N1/1Qrr1b2 w - - 0 1 illegal: No proof kernel
2bRBr1B/Qqn1R3/n3nn1R/N3bPk1/p3Q3/n1q5/NQ5p/nK3B1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 a5 Kc2 h5 g4 d5 b4 e5 b6 h3 b7 a4 b5 e3 g5 d3+ Kb2 h2 b6 e4 c5 d2 c6 e2 c7 e1N Ba6 h4 Bd3 h3 Nf3 d4 Nc3 Bd6 Ba6 d3 Ng1 e3 Qe2 d1N+ Kb1 d2 Na2 Nb2 Nf3 d1N Nd2 Nf6 Nc4 Be5 Na5 Nbd3 Bb2 Nc5 Qg2 e2 f5+ Kh5 g6 Nc2 g7 e1N g8R Qd4 Rd8 Ne6 Qe4 Kg5 Bf1 Na6 b8Q Qc3 b7 Nde3 Qa7 Ned5 b8Q Rh6 Nc1 Rh4 Ra3 Rh8 Na2 Na1 Rb3 Nec2 Rb7 Bd7 c8B Ndc7 Rb3 Rh5 Bb7 Rh8 Bc6 Bc8 Be8 Rf8 Qbb6 Rb8 Qf2 Rb5 Rb4 Rd5 Qfe2 Rd7 Rd4 Rh7 R4d7 Rh4 Re7 Rh5 Nc1 Na3+ Ka2 Qe3 Bf7 Nfd5 Rd6 Bg3 Be5 Qc3 Bg7 Nf6 Rd2 Be5 Qd5 Rh4 Qeb5 Rg4 Be8 Rg1 Bd3 Rf1 Bh8 Re1 Qb2 Rd1 Rf1 h1Q Qf3 Qh2 Rh1 Rg1 Bf1 Nb8 Rd8 Qg2 Qd3 Qb7 Qe4 Nba6 Rh2 N3c2 Kb1 Rh1 Na2 Qb6 Rf2 Qb7 Rf3 h2 Rh3 Bf4 Rh4 Be5 Rh6 Na3+
q3R1Rr/n2N3n/1bk4N/b2Rpbq1/4NBB1/pK5b/2P1Q3/1b2BbrQ w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 g4 Kd7 f4 a5 b4 h5 f5 e5 f6 h3 f7 e3+ Kd3 e2 b6 e1B b5 h2 g5 a4 g6 h4 b7 a3 b6 h3 g7 Bc5 f8N+ Kc6 Ng6 Ba5 Ne2 Qg5 Nd2 Nf6 g8R Bf5+ Ne4 Nh7 Nf8 Ra7 Rg1 h1B Bf4 h2 Nd7 Bf3 Rg3 h1Q Bh3 Bh5 Re8 Bf7 Rb1 Ra8 Rb4 B7e6 Kd2 d3 Kc3 d2 Kb3 d4+ Rc4 d3 Bg4 Qf3 Qh1 d1B Rg2 Bf7 N2g3 Be2 Rg1 Bf1 Rg2 Na6 b8Q Nc7 b7 Nb5 Qd8 Ra6 b8B Na7 Bc7 B7e6 Rg1 Qg2 Qf6 d2 Qfh6 d1B Q6h2 Bde2 Bd8 Bd3 Bb6 Qf3 Qe2 Bh3 Rg2 Kb5 Bd8 Bcb6 Be7 Bd5 Bb4 Bg8 Be1 Bge6 Nef6 Qa8 Ng8 Bf7 Nh6 Bd5 Qf3 Bf1 Ne4 Bf7 Rd2 Bg8 Qe2 Bge6 Ndc5 Kc6 Rd5 Bf7 Rc3 B7e6 Rg3 Bg8 Nd7 Bge6 Ka4 Bf7 Rd2 Ba2 Rd5 Bb1 Kb3 Bb4 Rf3 Ra4 Rg3 B4a5 Rg2 Rd4 Rg1 Rd1 Bh5 Qe7 Rgg8 Qg5 Bg4 Rd2 Qa6 Rg2 Qe2 Rg1
1RR1b1N1/1KbN4/2R2Qqb/2Pb2pQ/4p3/b5Bn/B1r1r1kb/n1B3qN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 Kh4 b6 e5 f5 a5 b7 g5 c5 d5 f6 e3 Kd3 e4+ Ke2 g3 b5 g2 f7 d3+ Ke1 e2 Kd2 e1B+ Ke3 a4 Kd4 a3 h3 Kg3 h4 d2 b6 a2 h5 Nc6+ Kc3 d4+ Kc4 d3 Kb5 Be6 b8N Qd6 h6 Nb4 b7 Bd5 h7 Nh6 Nd7 Nc2 b8R Qg6 Ne5 Ng4 Nh3 g1B Nd7 Bh6 f8Q Nf2 Qh5 d1B Qf6 d2 Kb6 Bh2 Bc4 Kg2 Nc3 Ra5 Rb1 a1B Ba2 Bb2 Rc8 Ba3 Rb2 Rf8 h8B Na1 Rc6 Bc7+ Kb7 Ba4 Bg7 d1Q Rb4 Nd3 Nf2 Nf4 Rh3 Bb5 Nh1 Bg3 Rb3 Bh2 Rb1 Bb3 Nd5 Qg1 Ne7 Bd5 Ng8 Rd8 Rf3 Nh3 Bf8 Ra4 Bd6 Rc4 Bg3 Rc2 Rf5 Rf8 Re5 Ra8 Re8 Ra4 Rb2 Rd4 Rc8 Rdd2 Ka8 Ba4 Rbb8 Re2 Kb7 Bf7 Ne5 Be8 Nd7 Bb3 Ra6 Bbf7 Rc6 Bd5
3RbnQ1/r2R1R2/2Q3r1/pn4b1/3B1r1b/1bpK1P2/B3Nrkb/NqNB4 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 d4 Kd6 b4 Kd5 g4 e5 b6 h5 b5 a5 g5 c5 b7 c3 g6 e3 g7 Ke4 d5 c4 d6 c2 b6 h3 d7 c3 Rh2 h4 Na3 Nf6 g8B Ra7 Bb2 c1B Be6 Nh7 Qe1 Rg8 Nb5 Na6 b8Q Rg6 b7 Bd6 Bc4 Qb6 d8R Bd7 Rb1 Nf8 Rc8 Nc7 Ba3 Be8 Nd4 Nb5 Rh1 h2 Bc5 h3 Rd8 Kf4 Qd1 e4 Nc2 Kg4 Qd5 Be5 Ke1 e2 Ba2 Bg5 Qc6 Kf4 Rbd1 Bd6 Nf3 Bc7 Rg1 h1R Ne5 h2 Nd3+ Kf3 Bd4 Bcf4 Rg2 Rg1 Rd7 h1B Na1 Bh2 Nc1 Rf6 Qbc8 Rf4 b8N Qb7 Rg4 Bg2 Rf7 Bh3 Rh4 Be6 Rhh7 Bb3 Rd7 Rg3 Rhf7 Rg4 Bh3 Rg3 Bf5 Kg2 f3 Bf6 Q8c7 Ne6 Q6d6 Ba4 Bg1 Rh4 Rfe7 Qd5 Nc6 Bb3 Rd8 Nf8 Qdd7 Rf4 Qe6 Rg6 Qg8 Bg5 Nd4 Qd6 Qc6 Qa3 Rf7 Qb2 Ra8 Kh1 Kf2 e1B+ Ke3 Kg2 Rd8 Beh4 Bf2 Ra6 Rd2 Ra7 Ke2 e3 Bc2 Re4 Bd1 Rf4 Kd3 e2 Ke3 e1R+ Nde2 Rf1 R2d7 Rff6+ Kd3 Rf4 Bc5 Rf2 Bd4 Qb1+
r2k1B1r/RB1b1n2/b3p1bB/4Nr2/1b1P2b1/1Qrn1p2/2q4Q/N1RN1RK1 w - - 0 1 illegal: No proof kernel
nBN5/pKr1B1bR/1nBPbrbN/Qb2Qbp1/q6k/bR5N/6Q1/3q4 w - - 0 1 illegal: No possible last move, all moves rejected
1bN4R/R1r4r/1K1Qr3/1Nqr1B2/b1p5/pR1Q4/bnNB2P1/bn1B1n1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 Kd6 e4 a5 b4 c5 d5 Ke5 b6 h5 b7 f5 b5 f3 Ke3 h3 b6 a4 d6 f4+ Kd2 c3+ Kd3 h4 Kc4 c2 Kb5 a3 d7 f2 Qe2 f3 Bd2 c1B Qd1 h2 Qe1 h3 Ba5 Kf4 e5 Kg3 e6 Bf4 e7 Bg7 e8B Qh4 d8N Be6 Nf7 Na6 b8R Ra7 b7 Nb4 Nh6 Rh7 Qe5 Nd3 Rd8 Ba2 b8Q Nf6 Qe2 Rc7 Rd7 Nb2 Rd8 Ne4 Bd2 Nc3+ Kb6 Bd6 Qd3 Qb4+ Bb5 c4 Be2 f1B Bd1 Be2 Rd7 Bde5 Qd6 f2 Nf3 f1N Ng8 Bd3 Qa7 Bc2 Ne1 Ba4 Nc2 Rh6 Ne7 Re6 Nc8 Bf6 Rg1 h1R Qa8 Kh2 Qd5 Bg3 Qd3 Bd4+ Ka6 Bge5 Bc6 Ba7 Be4 Bb8 Rf7 Ne3 Re1 Nf1 Bf5 Rg1 Re4 Kh1 Rh4 h2 Rh8 Ng3 Bh5 Rd1 Rg7 Nf1 Rgh7 Nd5 Nc3 Bf6 Nb5 Nc3 Kb6 Nb1 Bc3 Rd2 Bd1 Be5 Qe2 Rd5 Qd3 Kg1 Re7 h1R Bd2 Rh7 Rd7 Kh1 Rf7 Rcc5 Ra7 Rc7 Qb3 Nd3 Bg6 Nc3 Rb1 Bf6 Rb2 Nb1 Qc3 Be5 Rb3 Bf6 Qd4 Be5 Qe4 Ba1 Bf5 Nb2 Qd3 Qc5+
n2r4/NrQ3rq/7p/1P1r4/1QpB2N1/bbQn1k1B/2nR3K/1NbRR1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kd5 d4 Ke4 b4 f5 d5 c5 e3 a5 g5 f3+ Kh3 h6 b6 a4 b7 a3 g6 a2 b5 c3 d6 f2 g7 f4+ d7 c2 Kg2 h3+ Kh2 f3 Na3 Ne7 g8Q Nf5 Bb2 c1B Bd4 Qc7+ Qg3 Rg8 d8R Be6 Rd7 Bb3 Rg7 c4 Qe2 Na6 b8Q Nh4 Rh7 Rg7 Nb1 Bfa3 Qb2 Qd7 Qa7 Rd8 Ne2 Nc7 Bg2 Qf7 Re1 Na8 Qac7 f1R Qc3 Qd7 Qgd6 Rg1 Bf1 f2 Qdb4 Kf3 Rd1 R1g5 e4+ Be3 Re1 Rd5 e5 Qf5 e6 Qf7 Qc2 Bec1 e7 Qf5 e8N Qd3 Kh1 h2 Bh3 f1N Qcd2 Ne3 Nf6 Nc2 Ng4 Qg6 Rh8 Qh7 Rd1 Ng6 Re1 Nf4 Qdc3+ Nd3 Rd1 Ke4 Kg2 h1N Kh2 Nhf2 Re8+ Kf3 Rd2 R8d6 Ng3 Rb6 Re1 Rb7 Nf5 Rd8 Ne7 Rd5 Bf1 Nh3 Nc6 Ng1 Na7 Bab2 Na3 Rd8 Rb1 a1R Bh3 Ra2 Ra1 Rd5 Nb1 Ra5 Rdd1 Ba3 Ra2 Ra6 Rb2 Rad6 Ra2 Rd8 Rb2 Ne3 Rbd2 Nc2
2r5/1nB1bP2/1B2Q1Q1/1rn1N1pn/qRr1p3/bB1N1RK1/2Nk1rb1/2n4Q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 Kf2 Ke6 c4 Kf5 h4 e5 b4 a5 c5 g5 b6 d5 b5 g3+ Kg2 e3 b7 Ke4 f5 e2 h5 e1N+ Kh3 g2 b6 d3 h6 d4 c6 a4 c7 a3 h7 a2 Na3 d2 Rb1 Ke3 Rb5 a1B Qb3+ d3 Qe6 e4 f6 Qd4 f7 Nf6 Qd7 Nh5 Rf5 Be7 Qc6 Ra5 Qg6 Bb2 Ne2 Qa4 Nf4 Nc6 b8B Rb5 b7 g1N+ Kh2 Bd7 c8Q Ne2 Bc7 Nd8 b8N Nb7 Nc6 Re8 Rf6 Bh3 h8Q Bg2 Qe6 Rg8 Ne5 Rc8 Nb1 Bba3 Rf5 Bac5 Na3 Bb4 Bb2 d1R Nc2+ Kd2 Bd4 Ba3 Bdb6 Ra1 Qhh7 Nc1 Be2 Rab1 Bd1 R1b4 Rf1 Rc4 Rf3 Nb3 Qh8 N3c5 Qhh6 Kc1 Qhh7 d2 Rb3 Ned3 Rb4 Ng7 Qh4 Nh5 Qe1 Rc3 Qh1 Rc4 Bg4+ d1R Rf6 Re1 Bd1 Re2 Rf5 Ng7 Kg3 Kd2 Rf6 Nc1 Nfd3 Rf2 Rf3 Rd8 Nce1 Ra8 Bb3 Rc8 Nc2 Nh5+
Nnk1b2B/1nP4N/bR2p1rB/2Nrb3/Q1R1K2R/3Qq1bn/B3p2r/4r3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 h5 b4 d5 Ra2 Nc6 Ke2 Kd7 c4 a5 g4 d3+ Ke3 h3 g5 a4 b6 d2 g6 h2 c5 h4 f5 e6 b5 h3 g7 a3 f6 Nge7 g8Q Na5 f7 Ba6 b7 Qb6 b8R Nec6 Bc4 Bd6 f8B Bg3 Rc2 a2 Nc3 a1B Na4 Rh5 Qdg4 d1R Bg7 Bae5 Nf3 Rh6 Ba2 Re1+ Re2 Qa7 b6 Rh7 b7 d4+ Kd2 d3 Ke3 d2 Nb6+ Kc7 Ng5 d1R Bh8 Rd5 Qg6 Rh4 Nh7 Rh5 Rf1 h1N Rf4 h2 Bd2 Nf2 Bc1 Rf1 Rc2 Rh3 Qd1 Rh1 Qgg4 Re1+ Qge2 Rh4 Rc4 Rh5 Qa4 Rh4 Rd8 Rh5 b8N Nb7 Rd6 Rh4 N8d7 Rg8 Rf7 Nb8 Rf4 Rg6 Na8+ Kc8 Rg4 Rh3 Rh4 Qb6 Rd4 Qa7 c6 Qc5 c7 Qa3+ Kd2 e3+ Kc2 Qc5+ Rc4 Qd4 Qd1 e2 Bh6 Qe3 Qb1 h1B Rb6 Rh2 Qd1 Rd6 Nc5 Nh3 Qd2 Bc6 Qd4 Qf4 Kd3 Be8 Qd5 Qc1 Ke4 Rd7 Qd2 Rd5 Qd3 Qe3+
K3b3/1Qp1k3/1Qn4B/4r1Rb/4NrPn/1NN1b1pR/rnb2n2/1Bq1Q2R w - - 0 1 illegal: No proof kernel
1n3Kn1/2pBb1Qr/RB2bQNB/2R1Pqnn/r3k3/1r1R2b1/p3N2Q/3b4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 d4 h5 g4 c3 b4 c2 b6 a4 b7 a3 b5 h3 d5 f3 d6 h2 Kd5 h4 e4 h3 b6 f2 d7 Bd6 Qd2 Qf8 d8R Ra4 Ne2 Rh7 Nbc3 Bg3 e5+ Kg6 g5 Kf5 g6 a2 g7 f6 Rg1 h1N Nf4 h2 Bb5 f1R Ng6 Nf2 Ne2 h1N Qh6 Re1 Qh2 Nh3 Bh6 Ng5 Rc1 Rf1 Rd6 Rf3 Rgd1 Rb3 Rd3 Qf7+ Re6 Qf8 Bd7 Qf7 Rb1 c1B Ra1 Ba3 Rc1 Be7 Rc4 Bd8 Rc5 Na6 Kc6 Ke4 b8B f5 b7 f4 Ba7 f3 b8Q f2 Qb6 f1B Red6 Qf5 Re6 Nf6 g8Q Bg2 Qg7 Ng8 Qa5 Bf3 Bb6 Nf2 Qe1 Ng4 Qef2 N4f6 Qf1 Nh5 Qff2 Bg4 Red6 Qe6 Qff6 Qf5 Be6 Bb7+ Kd7 Nb8+ Ke8 Bd5 Bd7 Be6 Kf8 Bf3 Ba5 Bg4 Ra6 Bf3 Bb6 Bg4 Nef4 Bd1 Ne2 Be7+
1bN1BNq1/r5k1/b7/q1Kb3R/2PRRbBp/n4pQ1/rB2q3/1QN2q1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 a5 e4 a4 b6 f3 e5 f2 b5 f4 g5 a3 e6+ Kg7 e7 h3 e8Q h4 g6 a2 b7 h2 b6 Nc6 b8N Na7 b7 Nf6 Nc6 Ne4 b8R Nb5 Nd2 Ra7 Ngf3 Ng3 Be2 f1Q Ne7 Na3 Ng5 Qa5 Bb2 Ba6 Nc8 Bd6 Rb5 Bb8 Qb1 Rh5 Rg1 h1B Nh7 Bg2 Qe3 Nh1 Qg3 Rg5 Qc2 Rg4 Rd1 a1B Nb3 Bf3 Qe1 Rg2 Nf8 Rh2 Rg4 Qg1 Bc3 Bb2 Qb1 Bc1 Qg3 Rf2 Bf1 Ra2 Bh3 Qg2 Bb2 Qg1 Re1 Bd2 Nc1 Be4+ Ke2 f3+ Kd1 Bdf4 Rc5 Kh6 g7 d3 g8B d4 Bf7 d2 Be8 Beb7 Re5 Bd5 Re4 Qf1 Rg5 Qg2 Bg4 Qg1 Rh5+ Kg7 Rf1 Nb5 Kc2 Na3+ Kd3 Qg2 Rf2 d1Q+ Rd2 Qgg1 Be6+ Kf6 Qe1 Qg8 Qg3 Qe1 Bg4 Qf1+ Ne2 Kg7 Ree5 Be6 Ke4 d3 Kd4 Bf7 Nc1 Bd5 Rd1 d2 Re4 Qc3+ Kc5 Qe2 Rf1 d1Q Re1 Qf1 Rd4 Qdc2 Re3 Qce2 Ree4 Qa5+
Q2Nr2R/b2rR1n1/1k3r2/q4QNr/p1BNnB2/3Q1pnP/b1nq4/1K2B3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 g5 c4 d5 Kc2 Kd7 e4 Kc7 h3 f5 e5 d3+ Kb2 f3 c5 f2 c6 f4 e6 d4 e7 d2 e8Q d3 Qe3 g3 Ra3 a4 Qdf3 d1N+ Ka1 d2 Qd4 g2 Qdc3 g4 Qce3 g3 Bc4 f1N Rc3 Nf2 Na3 d1R Kb1 Na6 Nc2 Rh5 Nd4 Kb6 c7 Be6 c8Q Nf6 Qd3 N2e4 Qf2 Rd2 Ngf3 g1R Ng5 g2 Qff3 Rf2 Bd2 Nfg3+ Be1 Bc5 Rb3 Ra7 Qa8 Rd7 Qg4 f3 Qf5 Ne8 Rb2 Ng7 Re2 Rgf1 Rg1 Rf7 Re3 Rd2 Re2 Rf6 Re3 Kc7 Re2 Ba7 b6+ Kd6 b7 Kc7 b8B+ Kb6 b5 Nb4 Bf4 Nc2 Rh1 g1Q Rhh2 Nb4 Rhg2 Qh2 Re3 Nc2 Ree2 Ka5 b6+ Bd5 b7 Kb6 b8N Be6 Ba6 Bb3 Bc4 Qd5 Nbc6 Qa5 Re3 Rff2 Nd8 Rfe2 Ba6 Nc5 Re7 Nce4 Bc4 Re3 Qf1 Rdd3 Rg1 Qhd2 Rg2 Ne2 Rg4 N2g3 Rh4 Re2 N4c6 Rd7 Nd4 Re3 Qd3 Nd6 Rf7 Re8 Re7 Nde4 Nge6 Rg5 Rh8 Rh5 Ng5 Ba2+
Nq1qbBrQ/n7/b1b1Rb1Q/3KnRP1/p1n3k1/n2p4/1NBr2BQ/2N5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 d5+ Ke5 h5 e4 a5 c4 f5 g4 h3 c5 a4 b6 h4 c6 h2 c7 h3 b7 d3 b5 d2 b6 d4 Bg2 f3 Qe2 f2 Qb5 f1N Qe8 f4 Qd7 d1N Be3 Nd2 Kd5 Bg7 e5 Bf6 e6 Nc6 b8Q Ne5 e7 Nb2 e8B Ndc4 b7 Na3 Qd6 Bd7 c8N Nbc4 Nb6 d3 Bc5 f3 Bh5 f2 Ne2 f1Q Nc1 Qf4 Re1 h1B Nc3 h2 Nd1 Qg3 Nb2 Ne7+ Ke4 Nc8 Kd5 Kf4 g5 Na7 Bd1 Rf8 Re2 Kg4 Bc2 Rg8 Qbc7 Rb8 Na8 Rc8 b8Q Be8 Be4 Bg2 Rf2 h1B Rf5 Bh3 Bg2 Qh2 Qh7 Rc7 Qh8 Rb7 Nd1 Rb2 Rb1 Ra2 Rb7 Rb2 Re7 Ra2 Re6 Qf4 Bb1 Rd2 Nb2 Qe3 Rf3 Nd7 Re5 Bg7 Bc2 Qf4 Qdh6 Bf6 Bf8 Qh2 Rf2 Kg3 Kd4 Bg4 Bh3 Bb7 Rf4 Ba6 Bg2 Bf5 Rf3+ Kg4 Kd5 Qg3 Re1 Qgc7 Re2 Qb6 Qbh2 Qbb8 Re6 Nde5+ Rd6 Bfc8 Rf5 Bcd7 Re6 Bc6+
1NR5/q2bb1n1/1k1BqQ1r/1P2N2n/3n1Nr1/1pQ1b3/2n2pR1/B1RB1K1b w - - 0 1 illegal: No proof kernel
2R3R1/bn1r3B/2B1Qqq1/1pQ1n2r/k1r1n1P1/1pr5/N3b1R1/Q1BN2nK w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 c5 g4 h5 Kg2 f5 e4 f3+ Kh2 f4 a4 h3 a5 b3 d6 Kc6 a6 c4 d5+ Kb5 d7 f2 e5 f3 a7 h4 d6 Nf6 e6 Qb6 d8Q Rh5 e7 Na6 e8Q+ Nd7 Qee7 Nac5 Be2 f1Q Qd2 f2 Bd3 Ne5 d7 Qg6 Ba3 Ka4 Qd1 c3 Qc1 c2 Qd2 c1R Qdg5 Rc4 Qg7 b5 Qd2 Bb7 Ra2 Rc8 a8B Bf3 Qb6 Nb7 d8R Be2 Qg5 Bc5 Qe6 Ba7 Rg8 Rd8 Rc2 Rd7 Bc1 Rc3 Nf3 Rc4 Rg1 Rc3 Kh1 h2 Ne1 Rc4 Ng2 Rc3 Na3 Rc4 Be3 Qa1 Bf4 f1N Nb1 Nd2 Ne3 Ndf3 Rg2 Ng1 Nd1 Qd4 Q5e7 Qf2 Bc1 Qff6 Qc5 Rc3 Rf2 Rc4 Kg2 h1R Nbc3+ Ka5 Na2 Ka4 Rc3 Rh3 Bb1 Rhd3 Kh1 h3 Rg2 Re3 Be4 h2 Rc2 Rec3 Bf5 Na5 Bc6 Nb7 Qh8 Qgg7 Bh7 Qgg6 Qg7 Rcd3 Rd8 Rb4 Qcf8 Qf4 Be4 Nf7 Qa1 Ne5 Rcc8 Rc4 Bc6 Rdc3 Qc5 Qff6 Rg8 Qgf5 Rf2 Q5g6 Kg2 h1N Rc7 Bd3 Rcc8 Ng3 Rb2 Ne4 Rc2 Rg5 Kh1 Rf5 Rf2 Be2 Rg2 Rh5+
1b2qn1k/B3R1q1/B1rqR3/PQn1p1Q1/4p2N/3NQbB1/2qKb3/1b4rR w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 a4 Kg7 g4 e5 f4 b5 g5 c5 g6 h5 a5 b3 f5 b4 d6 h3 d7 b2 d5 h4 d6 c4 Qa4 b3 Bd2 c3 Bc4 c2 Ra2 h2 Be3 h3 Ne2 Qe8 d8Q Nd7 Qb5 Rh6 f6+ Kh8 f7 Ne7 Ba7 Ba6 Nc1 Nc5 Nd2 b1B d7 b2 Nd3 c1Q+ Ke2 Qc3 Nf3 Qd4 Kd2 Qd6 Nh4 Rc8 Ra4 Rc6 Qdb6 Rh5 d8B Rg5 Rb4 Rg4 Rd1 h1B Rg1 Bf3 Rh1 h2 g7+ Kh7 g8R Rg1 Rg6 Kh8 Re6 Ng6 Bg5 Be7 Bf4 Nf8 Bg3 Bd8 Re7 Bc7 Re6 Bb8 Qd8 Bc2 Qg5 b1Q Re7 Qa2 Rb1 Qb3 Rf1 Bb1 Rf2 Be2 Rf6 Bc8 Qe3 Bcg4 Rfe6 Bh5 Qb4 Bhf3 Ba6 Qc4 Qb5 Re1 Rg1 h1Q Rf1 Qh3 Rh1 Rg1 Qg5 Qg4 Qe3 Nh7 f8Q+ Qg8 Qf5 Qg7 Qg6 Nf8 Qgg5 Qc2#
Q3r1bn/BBK5/bQ2PNR1/bqr2Rp1/N1q3B1/1Q4Rr/4pb2/2k1rn2 w - - 0 1 illegal: No possible last move, all moves rejected
br1Q4/1rR3Q1/4p1N1/2B1N1Nr/1n1rR1nP/KR2q2q/1p1B1q1k/1q1Bb3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 d4 Kf7 Kd2 Kg6 Kc2 Kh5 Kb2 Kh4 f4 b5 a4 c5 d6 g5 d5 g3 d7 e3 a5 g4 a6 e2 d6 e1R h3 g2 f5 Kg3 h4 b3 a7 b4 f6 e6 f7 c4 Nc3 Nf6 Nd5 c3+ Kb1 b2 Ka2 b1R Ba3 c2 Nf4 c1Q Ngh3 g1Q Ng6 Rh5 Qd4 Re4 Ng5 Qf2+ Be2 Qce3 Re1 Nc6 Ne5 Rb8 a8R Bb7 Ra7 Ba8 Rc7 Kh2 Qb2 g3 Bd1 Bh6 f8N g2 Nfg6 g1Q Re2 Qh8 d8B Rd4 d7 Ng4 Qc3 Rb3 Rb1 Qf8 Bc1 Qff3 Be7 Qh3 d8Q Qh1 Bd2 Rb2+ Ka1 b3 Bc5 Nb4 Re1 Qef3 Re4 Q3e3 Ngf7 Bf4 Ng5 Bg3 Qc1 Rc2 Qb2 Rcc4 Qc3 Rd7 Kb2 Rcd4 Ka3 Q1f1 Rc8 Rdb7 Rc7 Qfd3 Rb2 Qb1 Nd7 Rd3 Qg7 Rd6 Nde5 Rd4 Rc2 b2+ Rc3 Qg1 Rd3 Be1 Rb3 Qgf2
1b1k2r1/2Rn3n/bNp3BN/Pr1B1N1R/Rp3QQb/6bq/Kn6/n2q2B1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 b3 h4 b5 a4 f5 d4 g5 Kd2 f3 Kc3 c6 Kb2 f4 h5 g3 h6 f2 d6 g4 a5 f3 d5 b4 h7 g2 e5 g3 e6 Nf6 e7 Ba6 Bc4 f1Q Ra4 f2 Nf3 g1B Nbd2 g2 Nd4 Bh2 Nf5 Rg8 h8N g1B Qg4 Nh7 Nf7 Kd7 Kb1 b2 Ka2 b1N N7h6 Na3 e8B+ Kc8 Bb3 Nc2 Bg6 Na1 Nc4 Be7 Be3 Qd3 Bd4 f1N d7+ Kc7 Ba7 Ne3 Bc5 Be5 Rh5 Bf2 Ba7 Beh4 d6+ Kb7 Bc5 Nd1 Bb6 Nb2 Be3 Qe8 d8R Qd1 d7 Kc7 Bd4 Be1 Bg1 Qe7 Rf8 Bd6 Rf6 Qe3 Rf7 Qh3 Rg7 Beg3 Rf7 Kb7 d8Q+ Bc7 Qdg5 Kc8 Q5f4 Kd8 Re7 Be5 Ra7 Nd7 Rb7 Rb8 Ra7 Rb5 Nb6 Qe1 Bd5 Bb8 Rc7 Qd1
NQ1Q4/1rb3bB/P3r1BB/1KpqR3/1Nn1qR1q/1Rp5/8/nQbkqb2 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 d4 Kd7 Kd2 Kc6 h4 Kd5 a4 Ke4 e6 c5 h5 f5 e7 g5 e8Q+ Ne7 d5 b5 a5 f4 e3 g3 d6 f3 a6 g4 d7 b3 Kc3 g2 h6 b4+ Kb2 g3 h7 f2 Nf3 g1B Ra2 c3+ Ka1 g2 Be2 f1Q Bd2 Bg7 Qe1 Ra7 Rh5 Bh2 Na3 g1B Rb2 Qg2 Nc2 Rb7 Nfd4 Bc7 Nb5 Nc6 Qb1 Na5 Bd3+ Kf3 e4 Nec6 e5 Qh4 d8Q Bh3 e6 Nd4 e7 Nc4 Bh6 Be3 Re5 Bc1 Bf5 Rf8 h8R Rf6 Rf8 Re6 Rf6 Kf2 Bh7+ Qf3 Qg8 Bf1 e8B Qf5 Beg6 Qf3 Ne3+ Ke1 Nc2+ Kd1 Rf4 Qfh1 Qb8 Qd5 Qgd8 Qdh1 Ra2 Qd5 Ra3 b2+ Ka2 Nb3 Rg4 Reb6 Rf4 Na1 Rb3 Rd6 Rh5 Re6 Re5 Bb6 Nc7 Ba5 Na8 Bc7 Be4 Be2 Ra3 Qf6 Beg6 Bd3 Ne1 Bf1 Nd3 Nc2 Kb3 N4e3+ Ka4 Na1 Qd7 b3 Nb4 Ke1 Qdd8 Qh4 Ref5 Nc4 Qc2 b1Q Rf3 b2 R3f4 Bd2 Qb3 Qbe4 Re5 b1Q Qb2 Qd1+ Rb3 Bc1 Qb1 Q1d2 Nc6 Kd1 Nb4 Bb6 Kb5 Qde1 Qa7 Bc7+ Qb6 Ra7 Qbb8 Rb7+
2bb1QRn/k3NB1P/B1pb1q2/3R1p1N/Qn2K3/r1N2n1R/3rnq1b/2B5 w - - 0 1 illegal: No possible last move, all moves rejected
2Kn1BrQ/3R2P1/p2qb1RB/1k1r2nr/1p1b4/1Q1qq2r/R1NQ2q1/3N1B2 w - - 0 1 illegal: No proof kernel
1R5q/1B3pB1/1k1qnnB1/R4b2/pK5R/N3nrrr/1b1nP3/1QQNrN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 b4 a5 g4 d5 c4 Kd7 g5 Kc7 c5 a4 c6 h3 g6 f3 g7 h4 Bb2 h2 Nh3 f2 Bg2 d3 Kc3 f1N Nd2 Qd6 Rc1 Bf5 Nf2 Nf6 g8B h3 Bh7 Nbd7 Bg6 Kb6 c7 d4+ Kc4 Nc5 Bb7 Bg7 c8N+ Kc7 Qe1 Ne6 Na7 Kb6 Nd1 Rag8 Rc2 Rh4 Rc1 Rf4 Bc3 Ng3 Nf1 Rf3 Rc2 Nge4 Qd2 Nh5 Qc1 d2 Bb2 d3 Bf6 Bh6 Bg7 Nhf6 Rc3 Be3 Rb3 Bd4 Rb2 Kc7 Rb1 Bb2 b6+ Kd7 b5 Kd8 Rg1 h1Q Rg4 h2 Rh4 Kd7 Ba8 Kd8 b7 Kd7 b8R Kc7 Bb7 Kb6 Nde3 d1R Ra8 Qb8 Kb4 Re1 Nd1 Qf4 Rb8 d2 Ra8 Be5 Rb3 Bb2 Rb8 Qh6 Rc3 Qh8 Rc5 Qg2 Re5 h1R Rd5 Qg3 Rc5 Nc3 Rd5 Rh3 Re5 Kc7 b6+ Kd6 Bh5 Rc8 Ra5 Rh1 Ba8 Nb1 b7 Bc3+ Kb5 Kc7 Nf2 d1N Bg6 Rh3 Kc4 Qd6 Nb5+ Kc6 Na3 Rc7 Re8 Rfg3 Rd8 Rc8 Rg8 Kc7 Kb5 Nd2 b8Q+ Kd7 Bh1 Ba1 Qb6 Rcc3 Bb7 Rcf3 Rb8 Ne3 Nd1 Bc3 Qd4 Kc7 Qd3 Nb3 Qdb1 Nd2 Nc2 Bb2 Na3+ Qc6+ Kb4 Kb6 Qbc2 Qd7 Q2b1 Qd6+
3K4/N1pr2qq/1b2r1nq/Q1RNN1p1/3nn1B1/Q1Q3P1/2Rn4/Rq1Bk2b w - - 0 1 illegal: No extended proof kernel
q1bN2b1/p1q4B/3Rr2B/2qnp2K/3kP1Q1/NR1nn3/3BrR1q/N2n2Q1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bc1 f5 h4 g5 Bh3 Bh6 Bg2 fxg4 Bf1 g3 Bg2 g4 Bf1 Bg5 hxg5 Qb6 Kd2 Qc7 Ke1 Qd8 b4 Kf7 c4 Ke6 f4 d5 g6 h5 g7 h4 f5+ Ke5 c5 a3 b5 h3 e3 a2 Ke2 g2 b6 h2 c6 g3 Kf3 d3 Kg4 d2 c7 d4 b7 d3 Na3 Na6 b8N Nb4 Rb1 a1Q Ne2 g1Q Nd4 g2 Ndc2 Rh6 Rb3 Re6 f6 Qc3 f7 Nf6+ Kh4 Qf8 g8R Nfd5 Rg6 Qg8 Qg4 d1N f8B d2 Bh6 Nd3 Na1 Qf2+ Kg5 g1Q Kh5 Qfg3 Bg2 Qc5 Be4 Q1g2 Re1 h1B Rf1 Qh7 Rf2 Q3h2+ Kg5 Qf3 Qg1 Qf8 Kg4 Bf3+ Kg5 Bh5 Rgf6 Bf7 Bf5 Bg8 e4 N1e3 Rg6 d1N Bd2 Kd4 Rf6 Ra6 Rd6 e5 Bg6 Ra4 Bf5 Qd7 Bh7 Rc4 Kg6 Rc2 Kg5 Ba6 c8Q Qdc7 Qcg4 Bc8 Ba5 Re2 Bd2 Qhf4+ Kh5 Qg3 Na6 Rb8 Nb4 Rb6 Rd7 Re6 Rd8 Q5c6 Rd6 Qa8 Nc6+ Kc5 Nd8 Kd4 Rd7 Qfc5 Rd6 Qh2+
q1Qrb2q/N1RRr1N1/KQ1rp3/B3r1q1/1bp1B3/1rP4B/1r1N2nk/5Q2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 h3 g5 Qe2 g3 Qg4 Nd7 Qd1 Ne5 h4 g4 Bb2 Nf7 Bc1 Ng5 hxg5 Qd3 Nf3 Qd4 Ng1 Qd8 Ke2 Kd7 d4 Ke6 f4 Kf5 a4 b5 a5 c5 g6 h5 c3 g2 a6 e3 Kd3 c4+ Kc2 e2 g7 e1R a7 e6 d5 h4 d6 g3 d7 b3+ Kb2 b4 Be3 h3 Nf3 Kg4 f5 g1R f6 h2 f7 g2 Qd3 Kh3 Qd6 Nf6 g8Q Nd5 Nbd2 Rh7 Bb6 Re5 Rd1 Nf4 Ba5 Qh4 d8N Bd7 Qh8 Be8 Nc6 Rd8 a8B Qf6 Qg8 Qh8 Nfd4 Be7 f8Q Rf7 Kb1 b2 Ka2 b1R Na7 b3+ Ka3 b2 Kb4 Rh7 Qff7 Bf8 Qf6 Re7 Qb6 Rd6 Nf5 Rd8 Be2 Re1 Baf3 g1Q Be4 Qg5 Bf1+ Ng2 Ng7 Kg3 Rg1 h1Q Qf3+ Kh2 Qf6 Ne3 Bh3 Ng2 Rf1 Red5 Rf5 R5d6 Rc5 Re3 Rc7 Re2 Qf1 Re1 Bef5 Re5 Bg6 Ne3 Bgf5 Qa8 Be4 Ng2 Bd5 Rc6 Kb5 Rcd6+ Ka6 Ra1 Bg4 b1R Bh3 Rb3 Be4 Ra2 Nb1 Rc6 Rdd7 Rab2 Nd2 Rf7 Nb1 Bb4 Nd2 Rd6 Qf8 Rc6 Qc5 Rd6 Qcc6 Re7 Qcb7 Qf4 Qc8 Qg5
3kbKBB/Bbq1b1Q1/p1b3NR/Pr6/7N/2R1qnQ1/p3nQ2/bN4bq w - - 0 1 illegal: No proof kernel
1BR1N3/qB4Bp/N2R1r2/1r2n2P/1n2Q3/k1rNrQqq/br1r2Qp/6K1 w - - 0 1 illegal: No possible last move
K3k3/3q1p1p/1Q2b1BB/B3qr1P/q1n3NR/5NrR/NRq4q/Q2bq1b1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 g5 e3 gxf4 Ba3 d5 Bb2 d3 Bc1 d4 e4 Na6 Nf3 Nc7 Ng1 Nd5 exd5 Ra3 Bb2 Ra6 Bc1 Ra8 Kf2 b5 Kf3 e5 Ke4 f3 a4 f2 h4 d2 c4 d3 g4 b3 d6 b2 Kd5 b4 Kc6 e4 a5 b3 a6 e3 a7 e2 c5 e1Q g5 Bg7 g6 Qe5 h5 Qe2 d7+ Kf8 Nf3 Nf6 Rh3 Ne4 Ra4 Rg8 Nc3 b1Q Na2 b2 Qb3 d1B Bh6 d2 Qb6 Nd6 Rah4 Qe5 Bd3 f1Q Be4 Rb8 a8Q Nc4 Qa4 Qde7 d8B Ke8 Bf5 Bf8 g7 Qfe2 Bg6 Be6 Bc7 Ra8 Kb7+ Qd7 c6 Ra5 Kb8 Rd5 Ka8 Qc2 Bd8 b1Q c7 Qe1 c8R Bc5 Rb8 Bg1 Qa3 Rc5 Qab2 Qh2 Qa1 Rf5 Rb7 Qbb5 Bc7 Rf8 g8N Qbe5 Nf6+ Ke7+ Bb8 Rg8 Ng4 Ke8 Bc7 Be2 Qa7 d1Q Rb2 Qda4 Ba5 Qdd7 Qc5 Bd1 Qb6 Rf6 Be4 Rg5 Bg6 Rff5 Ne3 Rg2 Ng4 Rg3
RqR3N1/r1r4b/1k1B2r1/bqp2n2/qqQrpB2/4PB1K/5r1Q/QN1N4 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 h3 g5 Bg2 g3 Bf1 Nd7 h4 g4 Qb3 Ndf6 Qc2 Ne4 Qd1 Ng5 hxg5 Ra6 Nh3 Ra7 Ng1 Ra8 d4 Kd7 f4 Kc6 a4 e5 a5 h5 f5 b5 f6 b3 g6 e4 a6 h4 a7 b4 f7 g2 Kf2 g3+ Ke3 c3 Kf4 c2 e3 b2 d5+ Kb6 g7 b3 d6 h3 d7 h2 Kg4 Nh6+ Kh3 Nf5+ Kg4 Bb4 f8N Ba5 Nh3 g1R g8Q g2 Be2 Rf1 Qc4 Rf2 Qg1 c5 Ng6 Rh7 Ne7 Qh8 Bd2 c1Q Ng8 Qc2 d8B+ Rc7 Be7 Qhc3 Ra3 Qb4 Bc3 Bd7 Bg7 Be8 Ra4 Bg6 Be5 Bh7 Bf3 Rd8 a8Q Rd4 B7d6 Qd1 Qgf1 g1R+ Qg2 Ra7 Bf4 Rc7 Na3 b1Q Qg3 Qbd3 Nb1 b2 Ra1 Qda4 Ra3 Rfg2 Nf2 Qf1 Nd1 Rf2 Ra2 Rgg2 Rg1 h1R Ra1 Rh5 Ra2 Rg5+ Kh3 Rgg7 Qh2 R2g6+ Rg2 Qe2 Ra3 Ra7 Rg4 Rgc7 Rg5 Ng3 Rf5 Qd3 Rf8 Nf5 Rc8 Qe2 Qa2 Qd3 Qa1 Qdb5 Qd5 Rd3 Qc4 Rd4 Nbc3 b1Q Ra2 Q1b2 Nb1 Q2b3 Bg2 Kb7 Qe2 Qaa3 Bg5 Q4c4 Bgf4 Bc3 Bh1 Qb6 Qf1 Ra5 Qfg2 Q3b5 Bg5 Qa7 Qg4 Kb6 Bgf4 Qb8 Qe2 Qab3 Qc2 Ra6 Ra5 Qca4 Bf3 Ra8 Ra7 Ba5 Qe2 Q3b4 Qc4 Rcg7 Rd7 Ra6 Ra7 Rc7 Ra8 Raa7
2QNn1Bk/3pR1n1/n2P1p2/4Q1Q1/2br2b1/B1b2q1b/b1NBR1qK/1n5R w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c4 gxh4 Na3 b5 Rh3 b3 Nb1 b4 Rh2 Ra5 Rh1 Rb5 cxb5 Bd6 Nc3 Bc5 Nb1 Bf8 Kf2 h5 g4 c5 Kg2 b2 e4 c4 d4 c3 a4 c2 b6 f3+ Kh3 b3 e5 Ba6 Rh2 f2 e6 Bg7 b7 Kf8 a5 Nf6 g5 Kg8 g6 Qf8 Be3 c1Q Na3 b1B d5 b2 e7 Ba2 Bc4 f1B+ Rg2 Rh6 e8R Kh8 Re7 Ne8 Qe1 Qc3 Rc1 b1N Ne2 Qd3 d6 Bc3 Nf4 Qe4 Be6 B6c4 a6 Bfe2 a7 Na6 Rf2 Qd3 Kg2 h3+ Kh1 h4 b8B h2 a8Q Bf1 Nc2 Bh3 Bba7 Qe2 Bab6 Qd3 Bbc5 Rh5 Ba3 Rd5 Bd2 Rd4 Rd1 Bg4 Kg2 h1N Rc1 Ng3 Kh2 Nh5 Qc8 Qf5 Qe5+ Qf6 Kg1 h3 Re2 h2+ Kg2 h1B+ Kh2 Bhd5 Rh1 Bg2 Bd5 B2h3 Ne6 Nac7 Nd8 Na6 Qe6 Qf1 Qe4 Qh6 Qe5+ f6 Bf7 Qe3 g7+ Kh7 Be1 Qef3 g8Q+ Kh6 Qgg5+ Kh7 Bd2 Kh8 Bd5 Nhg7 Bg8 Q1g2+
2Br1q2/3N1q2/K1NqQp1Q/1rB1Rn2/p2R1q1b/1Q2nPB1/5q1r/1r3N1k w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 Rh3 bxa4 Rh1 g5 e4 gxh4 Rh3 d5 Rh1 d3 Qh5 d4 Qe2 Bb7 Qd1 Bd5 exd5 Bg7 Qh5 Bh6 Qd1 Bf8 Kd2 Kd7 g4 Kd6 c4 Ke5 b4 Kf4 d6 e5 c5 h5 g5 a5 g6 a3 c6 a4 b5 h3 g7 h4 d7 a2 b6 e4 b7 e3+ Ke1 h2 c7 h3 c8N d2+ Ke2 Nc6 Kd3 e2 Kc4 e1Q Kb5 d3 b8B+ Ne5 f3 Kg3 Ba3 Ne7 Bg2 Rh5 Bc5 Qf2 Be3 Nf5 Bc5 Be7 Bd4 Bh4 Bc5 f6 Qb3 d1Q Nb6 Qf8 d8Q d2 Nd7 Qc1 g8Q+ Rg5 Qbe6 d1Q Nd2 Qc4+ Kb6 Qf4 Bf1 Ng4 Ba6 Kg2 Bc8 Rh5 Nf1 Qdd6+ Kb7 Rg5 Re1 a1Q Re5 Nge3 Ne2 Qa2 Nd4 Qad5+ Nc6 Qda2 Qee8 Qaf7 Bc7 Rb8+ Ka6 Rb5 Qh7 Rg8 Qe6 Rh8 Qh6 Rg8 Nd2 Rh8 Ra1 h1R Nf1 h2 Rd1 Rg1 Qb3 h1R Qe7 Rh2 Qee6 Kh1 Rd4 Rhg8 Nd2 Rb1 Nf1 Q8e7 Ba5 Rd8 Be1 Qb2 Bf2 Qef8 Bg3 Qf2
3n2k1/q2R3p/1qQp1b2/Q1nNB1rK/3Pqb1N/3n1n1Q/NB1R2B1/1q1b4 w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c4 gxh4 Na3 b5 Rh3 b3 Nb1 b4 Rh2 Ra5 Rh1 Rb5 cxb5 Bd6 Nc3 Bc5 Nb1 Bf8 Kf2 f5 Kf3 Kf7 d4 c5 g4 d6 a4 b2 e4 b3 g5 h3 b6 h2 a5 c4 b7 c3 a6 c2 a7 Be7 a8Q Nc6 b8B Qb6 e5 Bf6 Qa3 Nd8 Nc3 b1Q Bb2 c1B e6+ Kg7 e7 Qe4+ Kf2 f3 Kg3 f2 e8Q f4+ Kh4 f3+ Kh5 Bf4 g6 Be6 Bg2 f1N Qc6 f2 Nf3 Nd2 Nh4 f1Q Bc7 Nf3 Qa5 Qfa6 Qf1 Qaa7 Na2 Bf5 Rg1 h1N Rd1 Nf2 Rd2 Kf8 g7+ Kf7 Qe1 Nd3 Qg3 Be6 Qh3 Bf5 Bc1 b2 Re1 b1Q Bb2 Be6 Ree2 Bb3 Re3 Ne6 Bd8 Nh6 g8N Bd1 Ne7 Rg8 Nd5 Nec5 Be7 Rg3 Bf8 Kg8 Bg7 Nf7 Re1 Qe8 Re7 Nd8+ Rf7 Qe4 Rd7 Be7 Be5 Bf6 Bf1 Rg4 Bg2 Rg5+
Kb6/NRQ1qq2/q2p1rn1/1n1q1kn1/2B1R1p1/b1n3BB/1N1PQ3/1Q1R3b w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c4 hxg4 Bh3 b5 Nc3 b3 Nb1 b4 Bg2 Ra5 Bf1 Rb5 cxb5 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 g3+ Kf3 Ke7 Ke4 Ke6 h4 c5 a4 g5 e3 g4 a5 b2 a6 f3 h5 c4 a7 g2 a8B f2 h6 b3 h7 c3 b6 c2 b7 Ne7 Nh3 g1N Ra7 Na6 b8Q Nc7 Na3 b1Q Bb2 Nf3 Be5 b2 Nb5 Qa2 Bg3 b1N Nf4+ Kf6 Bb7 c1B Nd3 Ba3 Bd5 Bb7 Bh3 f1Q Ra4 Bc6 Na7 Ng5+ Kd4 Qf5 e4 Nc3 Nb2 Bd6 Rb4 Qa6 e5+ Kg6 Ra4 N7b5+ Kc4 Qe6 Qb1+ f5 Rd1 Qg8 Qb7 Bb8 Kc5 Qe8 Ba2 Bh1 e6 Kf6 Rd4 f4 Bc4 f3 Qc6 f2 Qb6 Nc6+ e7 f1Q Qd8 Qe6 Qa5 Rg8 h8R Rg6 Rh7 Ne5 Qb6 Qe2 Qd6 Qd8 e8Q Qd3 Qee7+ Kf5 Qc6 Qg8 Qg2 Re6 Qe2 Ng6 Re4 Rf6 Qd6 Qe8 Rhe7 Qgf7 Qc6 Qa4 Kb6 Qdd5 Kb7 Qa6+ Ka8 Qd8 R7e6 Bfd6 Re7 Ba3 Qb7 d6 Qc6 Nh4 Rb7 Ng6 Qc7 Qde7
1QB1r3/1b1N1rq1/BRKQ1N2/1r2p1R1/3Q1r1r/1n5p/knnrn2P/N1B5 w - - 0 1 illegal: No possible last move, all moves rejected
5n2/rB6/1q1k2r1/3npp1r/bR4B1/1bN1nKR1/PNR2pNq/Q1b2QB1 w - - 0 1 illegal: No proof kernel
3B3N/3R4/4Q1bq/1RP1rrn1/Rpb2r1k/QN1BQ1p1/1qBqpb2/4nK2 w - - 0 1 illegal: No possible last move, all moves rejected
1b1BQ2n/2b3Kq/b1Q3n1/p1n1NprR/1PB2r1R/B5k1/2p1r2N/4NQq1 w - - 0 1 illegal: No possible last move
RB1bkr2/n1Q1Pb2/5q1B/qpNb3r/1N2n2Q/1p2N1RR/2pq1n2/1B4K1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 d4 f5 e4 h5 g4 c5 a4 f3 a5 b3 g5 h3 a6 c4 d6 f4 e5 h2 a7 c3 d5 h4 e6 h3 g6 Nh6 d7+ Ke7 g7 Qb6+ Qd4 Qc5 g8Q Nf7 d8N Qb6 d6+ Ke8 Qh7 Nc6 Nd2 Qa5 Nc4 Be7 Ne3 Ng5 Nb7 Bd8 Qc7 Rh5 e7 Be6 Bd3 Bf7 Bb1 c2 Ne2 Ne4+ Kf1 f2 Nc3 Rb8 a8R Na7 Na2 Qd2 Rg1 h1N Nc5 h2 Rg3 Qa5 Nb4 Rc8 Kg2 f1B+ Kf3 B1c4 Kg2 Bcd5 Qf6 Nhf2 Qh4 f3+ Kf1 Bg8 d7+ Kf7 Bd2 h1Q+ Rg1 Qh2 Rg3 Rb8 Rh3 Qf4 Kg1 Qf6 Rg3 Qd4 Bc1 Qd2 Ra4 Qb6 Ra6 Qa5 Rh6 Qd3 Qe5 Nd1 Ng2 f2+ Kh2 f1Q Qh3 Rh4 Qc7 Qf6 Kg1 Ndf2 Rh5 Qe2 Bh6 Qd2 Ne3 Rc8 Qd6 Bc7 d8B Bb6 Bc7 Rf8 Bb8 Bd8 Qc7 Ke8 Qg4 Bgf7 Qg5 Rf4 Rhh3 Rf5 Qh4 Rh5
3k1rbQ/RQ1p1p1r/3P3n/2K1QRb1/1q1Br1N1/p1N5/Rn2n3/2bq1B1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 a5 h4 g5 c4 a4 e4 b3 d4 f3 Ke3 b2 d5 f2 Kd4 g3 c5 a3 c6 g2 e5 g4 e6 g3 h5 Rh6 d6 Ra4+ Kc5 Be7 b6 Rh7 h6 Bg5 c7 Ba6 c8R Nc6 b7 Re4 b8Q Ne5 Ne2 g1N Qd4 g2 Ra2 Nc4 Nbc3 b1R Qe5 Nb2 Rh5 Bd3 Ng3 Ne2 Rc7 g1B Qb7 Qb8 Nh1 Kd8 Be3 Bh2 Bd4 Bhf4 Kb6 Bc1 Kc5 Rg7 h7 Nh6 h8Q+ Rg8 Qb3 Rf8 Ra7 Ra1 Qb7 Bc2 Bg2 f1Q Bh3 Qd1 Bf1 Be7 Rf5 Beg5 Rf2 Rh4 Rf6 Bh7 Rf5 Bg8 Qb3 Re4 e7+ Kc8 e8N Kd8 Nf6 Rb1 Qbd5 Qbb3 Qb7 Qb4+ Kd5 Na4 Ng4 Rb3 Nb1 Rh3 Nc3 Nb2 Rf2 Nf5 Rf3 Rh7 Rf2 Qba4 Kc5 Nh6 Rf5 Qb4+
B1r2bbq/3pP2N/k2bnQ1n/1p3N1N/q1BBp2n/2q1r1Q1/8/QK1R1R2 w - - 0 1 illegal: No proof kernel
4Q2R/1BP1q1br/1bn3Bk/6r1/2nppR2/BNp2R2/2r2Qb1/q1NK2qN w - - 0 1 illegal: No proof kernel
1k1r2R1/n1pn3K/1B4B1/p2Qq3/r1Q5/Ppb1qNNB/n3qQ1R/bN2b3 w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 a5 b4 h5 c5 hxg4 c6 b6 b5 Ba6 bxa6 dxc6 Qc2 c5 Qd1 c4 Kf2 Kd7 e4 Kc8 h4 g5 d4 f5 a7 f3 Kg3 f2 e5 b5 d5 c3 e6 b4 d6 f4+ Kg2 b3 h5 c2 h6 g3 Kh3 f3 Kg4 g2 Kf5 g4 Kg6 g3 a3 Nf6 e7 Bg7 e8Q Nfd7 h7 Nc6 Qd3 Bc3 Qe1 Qe7 Ne2 g1B Bh3 f1Q Qf2 g2 Ng3 Qe5 Qc4 Qfe1 Be3 c1N Rh2 Na2 Bb6 Rf8 h8N Rf4 Nf7 Q1e3 Ng5 Rg4 Qc5 Ra4 Qc4 Rb8 a8B Na7 Bc6 Ra8 Bb7+ Kb8 Be4 Be1 Kh7 Bc3 Qb2 f2 Bg6 f1Q Nf3 Bf2 Qd2 Be1 Qf2 Nc5 d7 g1B Bd3 Qfe2 d8Q+ Nc8 Qd6 Na7 Bg6 Nd7 Qde6 Kb7 Qf5 Rd8 Qff7 Kb8 Qfd5 Nc1 Ra2 Ba1 Rd2 Na2 Rd4 Bac3 Rf4 Ba1 Rf8 Bac3 Rh8 Ba1 Rg8 Bec3 Qe1 Bf2 Qed2 Be1 Qb2 Q2d3 Qf2 Qde2
r5b1/1PbRN1r1/1kq2n2/1q1B4/1R1pRp2/B1N3nr/KB2Qpq1/1QQ2b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 Kc7 g4 a5 c4 f5 Kc2 h5 Kb3 f3 e5 f4 g5 d3 b6+ Kb7 g6 h3 e6 h4 c5 d2 g7 a4+ Ka2 d4 e7 h2 e8Q a3 b5 f2 Bc4 h3 Bb2 Bf5 Bd5+ Nc6 Qee2 Be6 Nf3 Qg5 Re1 h1Q Ne5 h2 Ng6 Qhg2 Nc3 h1Q Ne7 Rh3 Rb1 Nf6 g8R Qe5 Rg5 Bg8 Rg7 Qeg5 Qc2 d1B Qcd3 Bc2 Qf5 Bd3 Rf7 Kb8 b7 Ka7 b6+ Ka6 b8B Qh5 Qee6 Bf1 b7 Qe2 Bd6 Qb5 Re4 Ka5 Nc8 Ne7 c6 Bg7 Qg6 Nf5 c7 Ng3 Ne7 Kb6 c8Q Bh8 Qeg4 Bg7 Qe2 Bf8 Ka1 a2 Bda3 Bg7 Nc6 Bf8 Rd7 Bd6 Ne7 Bb8 Bc1 Bd6 Rb4 Bc7 Kb2 a1R Kb3 Rb1+ Ka2 Rb3 Bb2 Rh7 Re3 Rg7 Qb1 Qhh3 Re4 Qe6 Qe8 Qd6 Qd2 Qc6 Qdc1 Bd8 Qh5 Bc7 Qe2 Ngh5 Nd1 Rh3 Nc3 Ng3
4b2q/1p1NqQnp/1RQ1q2n/1P1NBR2/3p2r1/1bBn2b1/1BK3k1/1Q1r1R2 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 d4 c5 Bd3 cxd4 Bc4 f5 exf5 a4 Bb3 axb3 Kd2 Kf7 a4 Kf6 c4 Kg5 g4 Kf4 g5 d5 g6 e5 g7 h3 c5 b2 c6 d3 f6 d4 b5 e4 a5 h2 a6 Nd7 c7 Nh6 g8Q Ng4 f7 Bb4+ Nc3 b1Q f8B Nh6 a7 Ne5 Bb2 Bd6 Bg7 Qa2 Qb1 Qe6 Ra6 Bd7 c8Q Be8 Nf3 e3+ Kd1 d2 Qf7+ Qdf6 Qc6 e2+ Kc2 e1Q Rf1 h1N Rb6 Nd3 Ne5 Rg8 Nd7 Ng3 Nd5+ Kf3 Bh8 Kg2 f4 Rg6 f5 Nh5 Bg7 Qfe7 Be5 Rg4 f6 Ng7 Rf5 Rc8 a8R Qf8 Ra1 Qh8 Qg6 Qh4 f7 Qhe7 f8B Bb8 Qf7 d1B+ Kd2 Bb3 Bc3 Qh4 Ba3 Qhe7 Bab2 Rc7 Qa2 Rc8 Raf1 Bd6 Qb1 Ra8 Bf6 Bg3 Be5 Ra3 Bd6 Ra1 Be5 Ba2 Kc2 Bc4 Qa2 Rd1 Qb1 Bb3+
4K3/p2r3Q/q4nRB/k2n2QQ/p3qp1P/1B2Nb1b/1rRr1b2/NN1B3q w - - 0 1 illegal: No possible last move
b1K2r1k/1BQ3R1/N1rbq3/2r1rnp1/2Q2P1n/8/pB1rRp1Q/1NB1b2N w - - 0 1 illegal: No possible last move
1B1r1bRb/3N1KQQ/1n4qb/Np4N1/1QnR1B2/p1b5/nPkrp3/3b3B w - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 h5 g4 hxg4 a5 d5 cxd5 Na6 Na3 Nb4 a6 Nxa6 Nb1 Nb4 Ba6 Na2 Bd3 Qd7 Bf1 Qd8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 f4 c5+ Kc4 g5 d4 b5+ Kb3 e5 h4 a5 d6 e3 h5 Ke4 f5 g3 h6 g2 d5 g4 h7 Bg7 f6 a4+ Ka3 g3 d7 c4 d6 c3 f7 c2 f8N Ne7 Qe1 Nd5 Nh3 g1N Bg2+ Kd3 Nd2 e4 Nc4 Nb6 Na5 Qg5 d8B Nf3 d7 Ne5 Bc7 Ra7 Bd2 c1B d8Q+ Kc2 Qe7 Bg4 Bb8 Rd7 Rg1 Qh6 Bh1 g2 Rb1 Rd5 Nd7 Rd8 h8Q Bf8 Qh4 Bf3 Rd1 g1B Qh7 Bf2 Rg1 Qf6 Rg8 Qg6 Qf6 Bh4 Qff7 Bf6 Qd6 Bh8 Qfg7 Bd1 Ra1 Nc3 Kb4 Rd3 Ra3 Na2+ Kc5 Nec4 Rb3 Rd4 Rd3 e2 Kc6 e1B Bg5 Qf7 Qb4 e3 Kc7 a3 Bh6 Re4 Rd4 Qg6 Bg5 Bcd2 Bh6 Bc3 Bg5 Bh4 Bf4 Bf6 Kc6 Bg5+ Kc7 Bh6 Ng5 Qf5 Bh2 Rh4 Bf4 Rh2 Kc6 Rd2 Kc7 Na4 Kc6 Qd3 Kd5 e2 Ke6 Nab6 Kf7 Qg6+
r3Bn2/2b1QQ2/R1rn4/qp3PR1/1QNb3b/2bp3p/b1NB4/BrKN1k2 w - - 0 1 illegal: No proof kernel
3Q2N1/4R1n1/1rrN1bp1/q2Q1B2/bB2Pn2/1bp1rKB1/R1N2p2/1rkr3R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Kd6 d4 c5 h4 a5 b4 f5 b6 g3+ Kg2 c3 h5 c4 b5 a4 d5 Kc5 b7 Kb4 h6 a3 h7 g6 b6 f3+ Kh3 a2 d6 f4+ d7 f2 Kg4 c2 Ne2 Kb3 Qd2 g2 Rg1 f3 Qg5 Nc6 b8R Be7 b7 Bf6 Nbc3 Ra3 Qa5 Nb4 Be3 Kb2 Qc7 c1R Bd2 Nd3 Qc5 Qa5 Nd5 Nf4 Bb4 Ne7 Nd4 Re3 Nc2 Nf5 d8Q Be6 Rh1 g1R+ Bg2 f1B Ne7 f2 Qcd5 c3 Ng8 Rb1 Rc8 Kc1 b8B Bf7 Rc7 Ng7 Re7 Bb5 B8d6 Rge1 Bh3 Rd1 Bc7 Ba4 Bcd6 Ree1 Kf3 Re2 Bf5 Ree1 Qb5 Bfb3 Bc7 Rd6 Qd5 Rb6 Bb8 Ng2 Bg3 Nf4 Nh6 Rg8 h8N Rc6 N8f7 Rf8 Qc7 Rb8 Nd6 Rbb6 Qd7 Kb2 Qd8 Rbd1 Rc1 a1R Ng8 Re2 Re1 Rb1 Rh1 Rd4 Rcd1 Re1 Rd2 Kc1 Na3 Rd1 Ra2 Re1 Nc2 Rdd1 Qc7 Re2 Qd8 Re3+
B1B1Q1Rq/3r1n1n/1R1pn1Nb/1N2bn2/kB1R3K/b1p5/pnP5/3Qr2N w - - 0 1 legal: proof: d4 e5 a4 exd4 g4 b5 g5 bxa4 g6 fxg6 Qd2 g5 Qd1 g4 h3 g5 Ra3 g3 Bf4 g2 Ra2 g4 Bc1 g3 Ra1 Bb7 Be3 Bf3 Bc1 Bg4 hxg4 Kf7 Nd2 Ke7 Nb1 Ke8 f4 h5 b4 a5 e4 c5 e5 d3 g5 h4 e6 d6 b5 d2+ Ke2 h3 Kf3 h2 Kg4 c4 b6 a3 e7 Kd7 e8N Kc6 f5 Kb5 b7 a2 f6 a4 f7 a3 g6 Na6 b8Q+ Ka4 g7 Nf6+ Kg5 Nc5 g8B Nh7+ Kh5 Ne6 Nh3 g1N Nf2 g2 Nf6 Ra7 Kh4 Bh6 f8R Nh3 Re8 g1B Bg2 c3 Ba8 N3g5 N6g4 Rd7 Ne5 Qf6 Ng6 Nf7+ Kg4 Qg7 Kh4 Qe5 Rf8 Qg7 Qe8 Qe5 Ng4 Bd4 Nf2 Qg7 Rg1 h1N Rg4 Ng3 Nh1 Qf6+ Rg5 Qg7 Rb5 Be5 Rb7 Nfd8 Rb6 Nf7 Qf3 d1N Be3 Ka5 Bc5 Nb2 Qd1 Ka4 Bb4 Be3 Nd2 Bh6 Rc1 a1B Nc4 a2 Na3 Nfg5 Rf4 Nf7 Nb5 Nf5+ Kg4 Nd3 Rd4 Bb2 Kh5 Ba3 Rb1 Ne7 Kh4 Nb2 Ra1 Nfd8 Bf7 Rf8 Bg8 Rf1 Rb1 Re1 Rb8 Nef8 Be6 Qh8 Bh3 Nf7 Rd8 Rb7 Bc8 Rd7 Na7 Nfg5 Ba5+ Bb4 Qf7 Nfe6 Rg8 Nc4 Qe8 Ba3 Rb6 Nf7 Bb4 Nb2 Nb5 Nf5+
QQ3bb1/4qBbn/1p2b1r1/1Bn1pkNR/b4p2/3r1Pn1/5NN1/1KRQ2R1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 b6 gxh4 b4 Nd7 b5 Ba6 b7 Ndf6 b8N Nd5 b6 Nb4 Bb2 Bb7 Bd4 Bc8 b7 Na6 Bb6 cxb6 d4 h5 Kd2 f5 Kc1 Kf7 g4 Kf6 c4 f4 c5 h3 d5 h2 d6 e3 d7 h4 c6 e2 c7 e1N g5+ Kf5 g6 h3 g7 Nc5 Na3 a5 Qe2 a4 Nf3 Ned3+ Kb1 Rh6 Nc4 a3 Qe3 Ne4 Na6 Ng3 b8Q Rg6 Ng5 Nf6 g8B Nc5 Qe2 Nh7 Nb4 e6 Bf7 Qe7 Rg1 h1B d8Q h2 Qed1 Bd5 Nd3 h1B Ra2 Bd7 c8R Ba4 f3 Bg2 Rc7 Bh3 Rh2 Ra5 Nf2 a2+ Ka1 Bg4 Rh5 Bh3 Kb2 a1B+ Kb1 Bag7 Rc8 e5 Ne3+ Kf6 Bb5 Bhe6 Ng2 Kf5 Qe8 Ra7 Qc6 Rd7 Qca8 Bdb3 Rc7 Rd3 Rc8 Nb7 Rc1 Nc5 Bfe8 Bg8 Bf7 Be6
1QR2n2/8/1p1bB1bn/pb2BNQ1/2r1pP1n/NNq1R1n1/5kr1/1Q1K1Bn1 w - - 0 1 illegal: No proof kernel
N3bR1N/2b2p1r/N7/1n1bR3/Qnr3PB/3BKp2/4pQr1/RQrr2qk w - - 0 1 illegal: No proof kernel
BNR1Q1N1/1q1p3b/1k2n3/pNpP1r2/1nB5/RQ2bn2/3rRn2/b1B3Kn w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 b5 axb5 h5 c4 hxg4 c5 Na6 Kf2 Nb4 Ra3 Nc2 Ra1 Bxc5+ Kg2 Bb4 Kf2 Bf8 b4 f5 h4 a5 d4 g5 e4 c5 d5 f3 b6 f4 h5 Qc7 e5 Kd8 h6 Ne7 b5 Ng6 h7 Bg7 b7 Nf8 b8N Qb7 b6 Ne6 Nd2 Nb4 Ra2 g3+ Ke1 g4 Bc4 f2+ Ke2 f1N Qb3 g2 Kf2 f3 Rh2 Ng3 Ne2 g1N Nc3 Nh1+ Kf1 f2 Nde4 g3 Ra3 Nf3 Nb5 Rf8 h8R Bf6 Kg2 f1N Rg8 Bg7 Nf6 N1d2 Rgh8 Ra7 Ng8 Ne4 Kf1 Rf6 Re2 Rf5 Kg2 Nef2 Kf1 Neg5 e6 Ba1 Kg2 Nd2 Kg1 g2 Kh2 g1B+ Kg2 Ndf3 e7+ Ke8 Kf1 Ne6 Kg2 Kf7 e8B+ Kf8 Bg6 Ra8 Nf6+ Ke7 Ng8+ Kd8 Bh7 Qc6 Bg6 Ba6 b7 Ra7 Nd6 Kc7 Nb5+ Kb6 Bh7 Rf6 Bc2 Rf5 Bd1 Bh2 Bc2 Bf4 Bd1 Be3 Bc2 Nfg5 Kg1 Ra8 Qd3 Qc8 Ba4 Qc6 Qb3 Qc7 Nc6 Re8 b8Q+ Qb7 Qa8 Ref8 Qe8 R8f6 Nb8 Rh6 Na7 Rh2 Bc6 Bb5 Qd1 Ba4 Nb5 Bc2 Qd3 Rh4 Qb3 Rd4 Qh5 Rd2 Qe8 Qc8 Ba8 Qb7 Rh6 Re5 Rf6 Bh7 Rf8 Rf5 Qf7 Nc7 Rc8 Nce6 Qe8 Nf3+
2b2n2/1Q2R1q1/2Q1PQnp/1p1Kr1BR/5Nrb/n3R3/p4kr1/NN1b1B1n w - - 0 1 illegal: No proof kernel
1Br1Nb2/2nbB2N/2p2r2/1k3rNB/1q4R1/bp1r2RP/p1Q4K/Rn4Qn w - - 0 1 illegal: No proof kernel
2r1nnb1/3N1r2/1p1bQR2/qb6/pp1NNR1B/5QR1/2n1Q1P1/r1b1KBk1 w - - 0 1 illegal: No proof kernel
3bQnN1/1n1n1bp1/4pR2/2qk2r1/1n1r1Rp1/QR2BNbN/B2KP2r/1B6 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Qd3 f5 Bf1 f4 Qg3 fxg3 c4 Kf7 f4 Ke6 h4 a5 b4 d5 c5 d3 f5+ Ke5 c6 a4 b6 d4 f6 a3 b5 g2 h5 a2 b7 Rh6 b6 Qc7 f7 Nd7 b8Q Kd5 b7 Ngf6 Nd2 Nh7 Ndf3 Ra5 Nh3 g1B Be3 Bf2+ Kd2 Bg3 Bg2 e6 Rhf1 Be7 f8Q Bd8 Qa3 Nhf8 Rab1 a1N Rb3 Qb6 c7 Nc2 Rf2 Rh7 h6 Nb4 Rf1 Rh8 h7 Qc5 Qa8 Rb5 b8R+ Bb7 c8B Bc6 Ba6 Ra5 Kd1 d2 Rb7 Ba4 Bd3 Bb5 Bb1 Bd3 Rc3 Bg6 Rc4 Bf7 Rf2 Nc6 Kc2 d1N Kd2 d3 Rf4 Nb2 Rb3 Na4 Qc8 Nb4 Ba2 Rg8 h8N Rb5 Ng6 Rh8 Nhg5 Rh2 Nh3 Be7 Qe8 Bd8 Kd1 d2 Ne7+ Kd6 Ng8 Kd5 Qc1 Qa7 Qa3 Nac5 Rf1 Nb7 Rf2 Nd3 Kc2 d1R Kc3 Nb4 Bh1 Ra1 Kd2 Qc5 Nd4+ Ke5 Rf6 Re1 Be4 Qb6 Kc3 Rd1 R2f4 Kd6 Bh7 Rg5 Nf3 Kd5 Bc2 Rd4 Bcb1 Rc4+ Kd2 Qc5 Bg1 Re4 Be3 Rd4+
4B2N/1p1Qrn1N/RB1bnP1B/2Q3n1/KNp3Rn/3r2b1/1pr1b1k1/2q1R3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 Kg6 Kc2 Kf5 Kb3 c5 a4 h5 f4 e5 g3 e3 g4+ Ke4 f5 e2 a5 e1N g5 h3 g6 h2 f6 c4+ Ka4 h4 g7 h3 a6 b3 d6 b2 a7 Rh7 d7 Nh6 g8Q Na6 d5 Nf3 d6 Nf7 Bh6 Nh4 Bg5 Nc7 Be2 Ne6 Nf3 Qe7 Re1 h1R d8N h2 d7 Rg1 Rf1 h1N Na3 Rg2 Re1 Nf2 Bh6 Nh3 Nc2 Nhg5 Nb4 Qc5 Rc1 Bd6 Qf8 Qe3 Bd3+ Kf4 Bg6 Kg3 Bh5 Rb8 a8R e4 Ra6 Rc2 Rg1+ Kf2 Rg4 Rg7 Rb1 Qc1 Qd4+ e3 Qc5 Qd2 Re1 Qc1 Qc6 e2 Qd5 Ne5 Be8 Re7 Nf7 Ra8 Nh8 Nef7 d8B Ra7 Rd4 Kg2 Bb6 Ra8 Rf4 Bd7+ Qb5 Rd8 Qg7 Bc6 Qh7 Be4 Qc5 Bd3 Qhf5 Ng7 Qd7 N7e6 Rf1 e1B Rg4+ Beg3 Re1 Ne4 Ng5 Be2 Nh7 N4g5 Qdc7 Be5 Qc8 Rd3 Qd7 Bd6
n3rRn1/1Q5b/K7/q1rNN1pQ/1qn1p1BN/1kB1n1b1/5pP1/3nR1QR w - - 0 1 illegal: No proof kernel
3k1nRQ/2nqb3/B2pn3/1p4Bn/2RN1Rb1/4N1qp/nrQ2P2/KQ2N2r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 c4 e5 Kc2 h5 Kb2 d6 a4 d3 g4 e4 g5 h3 g6 b3 a5 h2 a6 d2 g7 h4 a7 e3 f6 e2 c5 e1N c6 Bg4 c7 Be7 c8Q Nf3 Bg2 Nd4 Qcc2 Qd7 f7+ Kd8 f8N Nf6 g8R Nd5 Nf3 Ne6 Ra4 Ndc7 Rc4 Rh7 Rg1 h1N Ne1 Ng3 Bb7 Nh5 Na3 Rh6 Kb1 b2 Ba6 Rh7 Ka2 b1N Ka1 Nc3 Qb1 Rh8 Nac2 Na2 Ne3 Rh6 Qdc2 d1Q Rg2 Qf3 Rg3 Qg2 Rf3 Qg3 Bd2 h3 Rff4 Rg6 Bc3 Rg5 Bf6 Rd5 Bg5 Rd2 Qf5 Rb2 Qfe4 Nc6 Qec2 Rc8 a8Q Ncd4 Qd5 Ra8 Qe5 Ra7 Qh8 Ra8 Ng6+ Nf8 Nh4 Nde6 Nhf3 Rc8 Nd4 Ra8 Bc8 Ra3 Ba6 Rd3 Rc3 Rd1 Rc4 Rc1 Nd3 Rg1 Ne1 Rh1
nq2R3/1n3p1k/r3B2N/5K2/pQ3Bq1/pBr1NNR1/2QRq2P/2bq1b1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 c5 e4 a5 b4 g5 d4 c4 d6 c3 d5 f3 Kg3 a3 e5 f2 b5 a4 b6 c2 b7 Ra6 d7+ Ke7 e6 Kf6 e7 Kg6 e8B Kh7 d6 Ne7 Nc3 Bh6 Ra2 Nec6 Bc4 f1Q Bf4 c1Q Nf3 Qe2 Bb3 Na5 Rg1 Qb6 d8R Nd7 b8N Nb7 Nc6 Qb4 Qd4 Nb6 d7 Qcd1 Nd5 Na8 Nce7 Qd6 Nf5 Qb8 Qc3 Rg8 Rg2 Rgg6 Qd2 Rgc6 Nde3 Rc2 Qb4 Rc3 Rd2 Qh1 Rf2 Qhd1 Kg2 g3 Kh3 g2 Kg4 g1Q+ Rg2 Qh1 Rg3 Bf8 Nh6 Bc5 Kf5 g4 Nf1 Bf2 Ne3 Be1 Rd6 Bd2 Rd3 Bc1 Rd6 Na5 Rd2 Bb7 Rc8 Bd5 d8Q Bc4 Qd7 Nb7 Qc7 Bb5 Bd7 Bc4 Rg1 g3 Be6 g2 Rg8 Bb5 Rg3 Bc4 Re1 g1Q Qc6 Qeg2 Qe4 Bf1 Qc2 Q2f2 Ree2 Qfg2 Rd8 Q1f2 Red2 Qfe2 Re8 Qh3+ Ke4 Qh4 Kf5 Qg4+
q3N1Q1/RB2pP1n/pbN2Nq1/1p3b1b/2RB4/r1R2rn1/k2bK1bQ/6Q1 w - - 0 1 illegal: No proof kernel
B3Rr1n/pb1qQ3/5qPn/2bbNpRK/4b2Q/2bR4/1p3N2/1Nkr2BB w - - 0 1 illegal: No proof kernel
n1Qbk3/pn3Npn/2R1q1P1/3QRB1B/1N2NKrn/2q5/rp3n2/B3Q2b w - - 0 1 illegal: No proof kernel
kq1K1bq1/1qQ1QNB1/n6r/RrqR3B/2Rr4/1B5p/2NQPp1p/4nb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 Kf3 h5 b4 d5 c4 Kd7 g4 Kc7 b6+ Kb7 b5 a5 g5 h3 g6 a4 g7 h2 c5 h4 Nc3 a3 Na4 d3 Nh3 d4 Nc3 a2 Bb2 d2 Bg2 d3 Nd5 Nf6 g8B Nfd7 Ng5 Na6 Nb4 Rb8 c6+ Ka8 c7 Ndc5 Nc2 Rh6 Bb3 h3 Qc1 d1Q Qd2 Qg1 Nf7 Qd6 Rd1 a1Q Bg7 Bd7 c8R Bc6+ Bd5 Bb7 Rc6 Qg6 Bb3 Qb2 Ra1 Qh7 Ra4 Qg8 Ra5 Qgd4 Rd1 Qdc3 Kf2 f3 Ke3 f2 Kf4 f1Q+ Kg5 f4 Bf3 Qf2 Bh5 f3 Rc7 Qe3+ Kf5 f2 Rc6 Ne6 Rc4 Nf4 Kg5 Bg2 b7+ Ka7 Kf5 Bf1 Kg5 Ng2+ Kf5 Rh8 Kg6 Qcd4 Kf5 Qg5+ Ke6 Qdc5 Kd7 Ne1 Qe3 Rh6 Qe7 Qge3 Rd2 Rc8 Rd1 Rc7+ Ke8 d2 Kd8 Kb6 b8Q+ Rb7 Qbc7+ Ka7 b6+ Ka8 Rb1 d1R+ Qcd6 Rd4 Rd1 Rg4 Rd5 Rd4 Qf4 Qf3 Qd2 Qa2 Qeg5 Re7 Qf6 Re5 Qe7 Rf5 Rd6 Qb7 Rd7 Qb1 Rd5 Qa7 b7+ Kb8 Ba2 Rf3 Ke8 Qbb6 Kd7 Rb3 Ke8 Rb4 Bb3 Rb5 Qe6 Kc7 Qe7+ Kc6 b8Q Qbc7 Qbd8 Kb7 Qdd6 Ka8 Q6f4 Q7c6+ Kd8 Qcb7 Qfc7 Qab8+
2q5/kB1rqQn1/3R1b1B/1KnQ2N1/3R1rB1/1ppp4/qPQN1q2/4r1Nb w - - 0 1 illegal: No proof kernel
5Nb1/2N3RR/n2r1B2/3B2B1/qpr3qb/1P4QK/R1p3p1/rkbNn1Qb w - - 0 1 legal: proof: g4 d5 f4 h5 c4 hxg4 cxd5 a5 f5 a4 b3 a3 f6 exf6 Qc2 f5 Qc3 f4 Qb2 axb2 Kf2 Ke7 Kg2 Kf6 h4 Ke5 d4+ Ke4 a4 b5 d6 f5 e3 c5 a5 g5 d7 f3+ Kg3 f4+ Kh2 b4 a6 g3+ Kh3 f2 d5 g4+ Kg2 c4 d6 c3 a7 Bh6 h5 Qe8 d8B Qa4 d7 Na6 Na3 b1Q Be7 Nf6 d8N Bb7 Bc4 f1R Ra2 Nh7 Nh3 Rc8 a8R Ng5 Ra7 Nf3 Bd5+ Kd3 e4 Rc4 Ne6 Rd8 e5 Rd6 Nf8 c2 e6 Kc3 Be3 Qd1 Nf2 Qd4 Bh4 Ra1 e7 Bc6 e8Q Ne1+ Kf1 f3 Bf6 Bb7 Qe5 g2+ Kg1 Bg5 Kh2 g3+ Kh3 g1B h6 Bh4 h7 Ba8 h8Q Bh2 Ng4 f2 Qg7 Bc6 Beg5 f1B+ Bg2 Bd5 Ne3 Bg8 Nb5+ Kd2 Rf7 Kc1 Nd1+ Kb1 Nc7 Bg1 Qg6 Be3 Rg7 Bc1 Rh2 Be2 Bd5 Bf3 Qe3 Bh1 Qg1 g2 Qd3 Qb6 Qg3 Qd4 Bf3 Be3 Bd5 Bf4 Kg4 Bc1+ Bf4 Bg5 Rhh7 Qe4 Kh3 Bh4 B4g5 Qg4+
1n1q4/N1B2rN1/1K3r2/1Qr1QR2/p2b1p1p/P1N2Bbk/rqn5/QBb1R3 w - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 gxf4 h3 b5 g5 Bg4 hxg4 bxc4 Kf2 Kd7 b4 Ke6 d4 h5 b5 f5 g6 c5 b6 a5 g7 f3 Ke3 h4 b7 f2 g5 c3 g6 c4 Ba3 c2 Be2 c1Q+ Nd2 f1R Bf3 c3 Bd6 c2 Ne2 Rh6 Ng3 Nc6 b8Q Qb2 Nb1 Nf6 Qb5 c1R g8N Bg7 Nh5 Rc5 Bc7 Rh7 Nc3 Ng4+ Kf4 Bh8 g7 e3 Qb1 Rf2 Rf1 e2 a3 e1B Qc1 a4 Qd1 Ra6 d5+ Kd7 d6 Ke6 d7 Ne3 Qd4 Bd2 Rae1 Bc1 Qd1 Re2 Qd4 Nc2+ Qe3+ Kf7 Rf2 Rd2 Qe5 Kg6 Rff1 e6 Ne7+ Kh6 g8B Rf7 Bh7 Rf2+ Qe3 Bd4 Ng7 Rd2 Qe5 Rb6 Be2 Ra6 Kf3 Kg5 Nc8 Rb6 Na7 Ra6 Qd5 e5 Qa2 Rb6 Qa1 Ra6 Bd1 Rh2 Rf2 e4+ Ke2 e3 Kd3 Rb6 Bf3 e2 Bg6 Nb8 Bh7 Rbf6 Rff1 Nc6 Rf2 Re5 Kc4 Kf4 Rff1 Kg3 Rf2 Kh3 Bg6 Qh8 d8Q Qf8 Qe7 Qd8 Rff1 Rd5 Qe5 f4 Rg1 Rf2 Rg5 Rg2 Rf5 Rh2 Rd1 e1B Bh7 Bg3 Re1 Bde3 Qb3 Bc5 Kb5 Bd4+ Ka6 Rd2 Qb5 Rc5 Kb6 N2b4 Bd5 Qb1 Rg5 Ra2 Bf3 Qb2 Bb1 Nc2 Rf5 Nb8+
rn6/1N3R2/3BRK1R/1n2b1pp/5Q2/N2q1bQp/k1B2Prr/N2nrqB1 w - - 0 1 illegal: No possible last move, all moves rejected
3bN3/1bq1q3/2r4b/k1B1RpQp/rqB2Q2/QqpP4/1RK3n1/n2BNN2 w - - 0 1 illegal: No possible last move
B4Bk1/Qqr2n1b/6r1/pnq2p2/K2R1b2/R3Nbn1/1pP3Qn/2R1B1NN w - - 0 1 illegal: No proof kernel
2RN2nb/N1rk4/KBr3rp/pQ3bqp/2Q1Bn1b/5P2/2r1RR1N/qB6 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 fxe4 h5 g6 Qe2 gxh5 Qg4 Nh6 Qd1 Ng8 Ke2 a5 g4 d5 c4 e5 b4 e3 Kd3 h6 c5 e2 c6 e1B b6 Qe7 b7 Rh7 b5 Qh4 g5 Bd6 b6 Qg3+ Be3 Beb4 c7 Qg4 g6 Nd7 b8Q Be1 b7 Nb6 g7 Ra6 Qb3 Qg5 Qc4 Kd7 Ra2 Bdb4 Rb2 Bbc3 Re2 Bb2 Nc3 e4+ Kc2 d3+ Kb3 d2 Rh2 d1R Nf3 d4 Bg2 d3 Nb5 d2 Na7 Nd5 Ka4 Rg6 Kb5 Bf6 Ka6 Rc1 Bb6 d1Q Bh1 e3 Rg2 Nge7 g8B Rc2 Nh2 Nf4 Bd5 Ng8 Be4 Qa1 Bf5+ Ke7 Be4 Bg4 c8R Kd7 Qe5 Bh8 Qeb5+ Rc6 Bd3 Bf5 b8N+ Kd6 Be4 Rhc7 Bd3 Ke7 Be4 Rg6 Nbc6+ Kd7 Nd8+ Rcc6 f3 Bh4 Rgf2 Qc1 Bg2 Qa1 Re1 e2 Bh3 Qg2 Rg1 Qg3 Rgg2 e1R Re2 Rec1 Rgf2 Be6 Bhf5 Qg5 Qbb3 Rc7 Qcb5+ R2c6 Q3c4 Rc3 Bb1 Rc2 Be4 Bf5
8/r1Qb1Q1B/k1b3PK/1p1qn3/1p1NrN2/bn2q2R/1B2prB1/r1NQR3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 e5 d4 c5 f4 Kc7 g4 Kb6 a4 h5 f5 h3 d6 h2 f6 h4 d7 h3 f7 Na6 d5 Nh6 g5 Ra7 d6 Rg8 Nd2 Ng4+ Ke2 e3 Kf3 e4+ Kf4 e2 a5+ Kb5 Nb3 e3 Bg2 e1R Bb2 Ne5 Nc1 e2 g6 Rf1+ Nf3 Rf2 Rb1 Qe7 d8Q Bd7 Qc7 b6 Re1 h1B Ra1 h2 Ra3 Qe6 Kg5 Qd5 Re3 Be7+ Kh6 Rd8 f8Q Re8 Bh3 Bg2 Qf7 h1Q Ra3 Qg1 Be6 Bh1 Ng5 Qg3 Nh3 Qe3+ Nf4 c4 Rf1 c3 Re1 Nc5 a6 c2 Rd3 Nb3 Rc3 Bc6 d7 Bf6 d8N Bd7 Nc6 Bf3 Nd4+ Ka5 Na2 c1R Rd3 Ra1 Nc1 Qc4 Rc3 Bfc6 Rd3 Qd5 Rc3 Rb7 a7 Ka6 a8B b5 Rd3 Ra7 Rc3 Qee4 Rh3 Re7 Qe8 Qe3 Bg8 Nf3 Qf7 Re4 Bh7 Ne5 Na2 Bh8 Nc1 Qd6 Qd3 Nf3 Rh4 Re6 Nc2 Be4 Ba3 Bb2 Qd1 Re8 Rh3 Qe6 Bd5 Qf5 Be6 Bec6 Nd4 Qc5 Bg4 Re4 Bh5 Ne5 Bf3 Qd5 Bg2 Bc3 Bb2 Rb1 Ba1 Bb2 Qc2 Ba3 Bb2 Ra1 Qd2 Qe6 Qd1 Qd5
1q1QQ1B1/8/nBbq2pQ/r3b3/3qPNp1/2nK1N2/R1n2pRr/1kBn2R1 w - - 0 1 illegal: No possible last move, all moves rejected
b1r2Q1b/5R2/1KNn2p1/8/q1p1n2p/k1B1rRBq/B1Q2b1P/1QbNR2q w - - 0 1 legal: proof: d4 b5 c4 e5 g4 exd4 a4 d5 axb5 dxc4 Qd2 f5 Qd1 fxg4 Kd2 Ke7 f4 Kd6 b4 a5 e4 h5 b6 c5 b5 d3 Ke3 g6 b7 g3 f5 c3 f6 c4 Kd4 g2 f7 d2 b6 h4 Ne2 c2 Ra3 g1Q+ Re3 a4 Nbc3 a3 Bb2 c1B Qc2 a2 Nd1 a1B Bc3 Na6 b8B+ Nc7 b7 Ra3 Bg2 Qf1 Rf3 Qe8 e5+ Kc6 e6 Kb5 e7 Nf6 Bh3 Ne4 Bf5 Qh3 Re1 Rb3 Ref1 Ka4 Re1 Bh6 f8R Ka3 Rf7 Qa4 e8Q Nb5+ Kd5 Be3 Kc6 Rg8 Bg3 Bf2 b8Q Nbd6+ Kc7 Bb7 Qf8 Rh8 Nd4 Ba8 Nc6 Bab2 Bg7 Re3 Bc3 Ba1 Qbb1 Rg8 Nb2 d1Q Kb6 Qe2 Nd1 Qef1 Qd3 Qh1 Qd2 Nc5 Bc2 Nce4 Bb3 Bab2 Qdc2 Rh8 Ba2 Rg8 Qh6 Rc8 Qf8 Ba1 Bd2 Be5 Bc3 Bh8
n5R1/1N1n2bb/QN2kpr1/q1Pn2q1/4q2R/1rpQQ3/B1NKp2B/2Rn4 w - - 0 1 illegal: No possible last move, all moves rejected
b2qk2r/1B4R1/1Q1QPn1Q/1b1r4/RNNKn3/Rp3p2/1p4b1/1qB1bNn1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 d4 f5 e4 h5 g4 c5 a4 f3 Ke3 c4 a5 b3 g5 h3 g6 f2 g7 c3 e5 b2 a6 c2 e6 h2 a7 h4 d6 h3 d7+ Ke7 d5 f4+ Kd4 b4 Nf3 b3 Ra4 Na6 Bg2 f1B Ne5 Bb7 Nd2 Bb5 Nf1 Nc5 Nc4 Ne4 Rg1 Ngf6 g8Q h1B Qg6 h2 Qh6 Bg7 Bf3 Bg2 d6+ Kf8 Qd2 h1Q Qf2 Rc8 a8R Rc5 Ra3 Rh5 R8a4 Ba8 Qg3 Qa5 d8N Ke8 Nc6 Qd8 Nb4 Bf8 Be2 f3 Qe5 Be7 Qc5 Rf5 Qb6 Rd5+ Ke3 Bh3 Rg7 Bg2 d7+ Kf8 Bd2 c1N Bd3 Ne2 Bc1 Ng1 Qd6 Rg5 Kd4 Rf5 Qb6 Bd6 Be2 Bg3 Bd3 Be1 Be2 Qe7 d8Q+ Qe8 Qdc7 Qd8+ Qcd6+ Ke8 Bd3 Nc5 Be4 Re5 Bd5 Nce4 Bb7 Rd5+ Ke3 Bg3 Bd2 Qh4 Qd4 Qg5+ Kd3 Be1 Bf4 Qg6 Bc1 Nd2+ Kc3 Qb1 Q4b6 Re5 Kd4 Nde4 Rd7 Rg5 Rg7 Rd5+
1k3b2/R2bRN1B/1n1pRqN1/Q7/bBrn1N1p/b1B1Pn1r/3Q3p/K3q3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 g4 a5 b4 h5 c4 d3 Kc3 a4 Kb2 f3 b6 d2 b5 h3 c5 f2 g5 f4 g6 h2 e3 Bd6 g7 Be5+ Nc3 Ne7 g8N Rh7 b7 Nd5 b6 Qf6 c6 Kd8 Nh3 Bd6 Nh6 Bf8 Bd3 f1Q Bg6 Rh8 Bh7 a3+ Ka2 Ra5 Bb2 Rc5 Ne2 Rc4 Bc3 Qe1 Rg1 f3 Nef4 f2 Rg7 f1N Re7 h4 Qh5 d1B Ng6 Rg8 Nhf4 Nd2 Qe2 Nf3 Qd2 Ba4 Bb4 Na6 b8R Nac7 b7 Nb5 Nf7+ Kc7 Ra8 Nbd4 Ra6 Kb8 Rb6 Ka7 c7 Rg7 Rd6 Nb6 b8B+ Ka8 Rde6 d6 Ba7 Bcd7 Bc3 Nc8 Bc5 Nb6 c8Q+ Ka7 Nge5 Rg3 Neg6 Rh3 Qa6+ Kb8 B5b4 Nb3 Rb1 Nbd4 Ka1 a2 Qb5 Qg1 Qa5 Qe1 Kb2 a1B+ Ka2 Bb2 Ra1 Bc1 Kb1 Bd1 Ra4 Ba3 Ka1 Nd5 Qb5+ Nb6 Ra7 Qg5 Qa4 Qf6 Qa5 B1a4+
2q1R3/3B1N2/3pPBRp/1rb1QNNR/kB1Qp2K/4b1n1/1r2b1n1/r2bq3 w - - 0 1 illegal: No proof kernel
1Bb3qr/1RRb1B1q/1pN3nP/2N2Q1Q/1n5N/1pb4r/4q1pk/K1RQ3b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kc2 g5 Kb2 c5 h4 f5 e4 b3 a4 f3 a5 g3 h5 f4 a6 b6 a7 f2 Bg2 f1B Qd3 f3 Nd2 f2 Ngf3 g4 Nh4 c4 h6 c3+ Kb1 c2+ Kb2 Nc6 e5+ Ke7 e6 Kf6 e7 Kg5 e8Q Kf4 d6 Nb4 d7 Ne7 d5 Qc7 d8Q Ng6 d6 Qh7 Qd5 Bb5 d7 f1B Bh3 g2 Qf5+ Kg3 Qe2 Rb8 a8R g1Q R8a7 Bc5 Rb7 Bg2 Raa7 Qd1 Rg1 Kh2 Ka1 g3 Qeh5 Qe2 Ne4 Bh1 Bf4 Bf8 Nc5 Bg7+ Be5 Bbc6 Rb1 c1Q Bg2 Qcc2 Bd5 Qcc4 Rc1 Re8 Bf7 Qe6 Bd4 g2 Rc7 Qd5 Rab7 Re3 Be5+ Rg3 Qdg5 Bb5 d8N Bbd7 Nc6 Bh8 Qgg4 Bf6 Be8 Qdg8 Bf7 Bh8 Qd4 Bg7 Qd1 Bh8 Bf6 Rh3 Be5+ Nf4 Rc4 Qgg7 Ra7 Ba6 Rc1 Rd8 Rc8 Qg5 Rcc7 Bac8 Rab7 Bf6 Qdd3 Rh8 Qd1 Be8 Re7 Qgg8 Kb1 Bg7 Bb8 Bc3 Rec7 Bed7 Na4 Bd2 Ka1 Ng6 Nc5 Bc3+
1R1qQ2r/Rn2rq2/Pp2Qp1n/2b5/Q3pK2/R2r4/1Nb1B3/B1qq1NNk w - - 0 1 illegal: No proof kernel
1b2b3/3QB2R/pp1qR2n/qn5r/rkrr1NQ1/p4BP1/1B1q4/N2N1Q1K w - - 0 1 illegal: No proof kernel
1B5R/2R1b1qp/B4nQ1/KN1p2R1/2br3q/2rN3k/2B2Ppn/qrNQ1r2 w - - 0 1 illegal: No proof kernel
R1rQ4/qnNQr1p1/4p1B1/3p2Kb/2P1R2N/1Qnqr3/B2Bk2b/b2R2b1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 Ke3 Ke6 Kf4 b5 a4 d5 c4 b3 h4 e3 c6 b4 c7 g3 h5 g2 a5 e2 a6 e1B h6 b2 f3 b3 h7 Nf6 a7 Na6 Bd3 Ne4 Bd2 Nc3 Kg5 Ke5 f4+ Kd4 f5 Nc5 f6 Nb7 f7 Qd7 Na3 b1R Bg6 b2 Qb3 Rd1 Rh3 b1Q Re3 Qd3 Re2 Rb8 a8R Qa4 Re5 Bg4 c8B Qa7 Bcf5 e6 Re2 Bc5 f8Q Bh5 Qd8 Bg3 Qd7 Re1 Rd1 Rhe8 h8Q Re7 Qhd8 Rc8 Be4 Bh2 Nb5+ Ke5 Nc7 Kd4 Bef5 Bb4 Re5 Re3 Be4 Ba3 Bef5 Bb2 Re4+ Kc5 Nf3 g1B Nh4 Ba1 Re5 Kd4 Be4 Qe2 Bb1 Qd3 Ba2 Qc2 Bf7 Kd3 Re4 Ke2 Bg6 Qd3
r2b3Q/R1R1B1p1/1Krp4/P1r3nq/1N2Qn2/1N4q1/2B2kpB/1rRQbb2 w - - 0 1 illegal: No possible last move
NQB1qRn1/B1Q2pb1/4Nb1p/rr4N1/3rq3/2p2K1n/1bPb4/3R1QBk w - - 0 1 legal: proof: e4 g5 a4 d5 f4 gxf4 g4 dxe4 g5 b5 h3 Bg4 hxg4 bxa4 Ke2 Kd7 d4 Kc6 b4 Kd5 g6 e5 b5 c5 g7 a5 b6 h6 g5 a3 g6 a4 b7 c4 Rh3 e3 Rh1 Ke4 d5 a2 d6 f3+ Ke1 e2 Kf2 a3 d7 Na6 b8B Nb4 Qd2 Nd5 Ba7 Qe8 d8Q Nf4 Qc7 Nh3+ Kg3 e1B+ Qf2 Rb8 Bce3 Rb5 Ne2 Bd2 Nd4 c3 Qe1 f2 Bc4 f1R Ne6 Rf5 Qf1 Rh5 Beb6 Bg5 Bf2 Bf6 Kg4 Ra5 Ba6 Rb5 Bc8 Rg5+ Kh4 Kf3 Rg1 e4 Rg4 e3 Bg1+ Nf2 Rb4 Ra5 Rb8 e2 Ra8 e1B Rb8 Ne7 g8N Bd2 g7 Rab5 Qe1 Kg2 Qf1+ Kh1 Ra8 Ng4 Kg3 Nf2+ Kf3 Nh3 Rb8 Rg4 Ra8 Rd4 Rb8 Be5 Nf6 Ng8 Nd7 Bf6 Ra8 Ne7 g8Q B8g7 Qf8 Ng8 Rb8 Be1 Nd2 Ra5 Nb3 Bd2 Rd1 a1B Ng5 a2 Nb6 Bb2 Nc5 a1Q Nce6 Qaa4 Na8 Qc4 Nd8 Qce6 Qb4 Qe1 Nde6 Qh4 Qb3 Qe4+ Kg3 Q8c6 Ba6 Ne7 Rc8 Rhd8 Qbb8 R8d5 Rf8 Rdb5 Bb7 Qe8 Bc8 Qh4+ Kf3 Ng8 Qe7 Qe1 Qec7 Qe4+
Q5n1/1q2Bpb1/BR1pkr2/2qpn1P1/NrN1QR2/2q2q1N/2Br3K/3R1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 d4 exf4 d5 c6 Qd4 cxd5 Qd3 Bc5 Qd1 Bf8 Kf2 Ke7 g4 a5 Kg2 h5 c4 d6 b4 a4 e4 f3+ Kh2 a3 b6 a2 e5 f2 e6 h3 b5 h4 c5 Bb7 c6 Nf6 c7 Qd7 c8N+ Ke8 e7 Ba6 b7 Bg7 b6 Ng8 Qe2 Nc6 b8Q Ne5 Nd2 Qb7 Nc4 Kd7 e8B+ Ke6 Bg5 Rh6 Qe3 Rf6 Rd1 a1Q Qe4 Qc3 Ba4 Bb5 Qa7 Rb8 Bc2 Ba6 Bfd3 f1Q Qa8 Qf3 Rf1 Qe3 Rf4 Qc5 Bf1 Rf5 Be7 Rf6 g5 Bb5 Nf3 Ba6 Be2 Bb5 Rd1 Ba6 Kh1 h2 Ng1 Bb5 Kg2 h1R Nh3 Re1 Bf1 Re2+ Kh1 Rd2 Bfd3 Qa7 b7 Ba6 N8b6 Bb5 Nf2 h3 Na4 h2 Kg2 h1Q+ Kg3 Rd8 b8R Qf3+ Kh2 Qb7 Be2 Rc8 Nh3 Rc6 Rh1 Rb6 Rd1 Rd4 Bf1 Ba6 Bfd3 Rb4 Bf1 Rd2+ Be2 Qd7 Rb6 Qb7 Na5 Rdd4 Bf1 Bb5 Bfd3 Bd7 Ba6 Bb5 Qf8 Bc4 Qa8 Bf1 Nc4 Rd2+
2Qb2r1/4Pb1p/1nr1p3/1q4N1/Q1BR1BKB/2rrQn2/pq3Rq1/1N1N3k w - - 0 1 illegal: No proof kernel
6NQ/2QRpR1R/3n3q/KBbn4/1rp1rrp1/2QNq2k/PBbB4/2qr4 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 f4 Kd7 d4 g5 Kd2 b5 h4 c5 d6 Ke6 d5+ Kf5 h5 c4 h6 e3+ Kc2 g3 h7 g2 d7 e2 d6 Kg4 f5 b3+ Kc3 b2 Kb4 Qb6 d8Q Bg7 d7 Bd4 f6 Nh6 f7 Nf5 f8R Nd6 Qc2 e1Q+ Nc3 b1Q+ Qb3 Qe3 Nge2 g1R Bg2 Rd1 Bd2 Qc1 Rf7 Ra3 Qb2 Rf8 h8B Bb7 Qe8 Be4 d8Q Bc2 Nf4 Nd7 Rhh7 Nf6 Ncd5 Kg3 Bf3 g4 Nd3 Qh6 Qc8 Kh3 Qc3 Bg1 Bh1 Qe3 Qc7 Rb3+ Ka5 b4 Qed8 Rb1 Be4 b3 Bf5 b2 Bd7 Re1 Bb5 Re2 Nb6 Re1 Nd7 Nd5 Nf6 Re2 Ng8 Re1 Rfg7 Rf4 Rf7 Rd1 Bg7 Re4 Qf8 Rf1 Be5 Rff4 Qg7 Qg3 Qf6 Bc5 Qh8 Qe3 Bg7 Qh1 Be5 Rg1 Rd1 b1R Qb4 Rb3 Bb2 Rgf1 Qa3 Rb4 Qac3 Qhg1 Be1 Qc1 Bd2 Qe3 Ne5 Ne8 Be1 Ndf6 Rd7 Nd6 Nd3 Nd5 Bd2 Rd1
1B1K4/nRn1pR2/1b2N3/1rqp1B2/p5bk/1P1r1q1r/2R3BQ/1rQQ1bN1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 Kg5 f4+ Kh6 b6 d5 b7 a5 b3 d3 Ke3 d2 Kd4 h3 Ke5 e3 f5 Kg5 c5 h5 c6 h4 f6 e2 f7 h2 c7 h3 Bg2 Bh6 f8R Nf6 Na3 Kh4 g5 Bg4 c8Q Qb6 g6 Ne8 g7 Nc7 g8B Qc5 Nb5 Be3 Nd4 e1R Ne6 a4 Rf7 Ra6 Ra2 Rb6 Rc2 Rb5 Bh7 Rf1 Ba3 Bf2 Bf5 Nc6+ Kf4 Rh7 b8Q Na7 Bb2 Re1 Be5 Re3 Bd6 Rd3 Ke5 Rh5 Qcb7 Be2 Qc6 Bf1 Qh8 Na6 Bb8 Nc7 Qb1 d1Q Qa1 Qf3 Qd1 Qb4 Qc3 Bb6 Qb2 Qc5 Qbc1 Na8 Ng7 Rh7 Ke6 Nc7+ Kd7 Rh5 Kd8 Rh6 Ne2 Rh7 Rg1 h1B Ne6 h2 Bgh3 Rd2 Rg6 Rd3 Ng1 Bhg2 Qe5 h1R Qh2 Be2 Rg8 Bgf1 Bg2+ Qh3 Rg3 Bg4 Rf3 Rh5 Rf4 Rh7 Rb4 Rh5 Qhf4 Qf3 Qd6 Rh3 Qh2 Rg5 Bg6 Re5 Bf5 Re1 Qdd2 Ba5 Qa3 Rb1 Qac1 Rb6 Qe2 Ra6 Rb7 Rb6 Qed2 Rb5 Qdd1 Bb6
1K6/2rpN2N/1b3q2/2Qbb3/p2QBQ1B/nRPB3r/1q1R1Np1/2br1nk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kd2 a3 Kd3 Ke7 Ke4 Ke6 h4 g5 b4 a5 e3 d3 h5 g3 h6 a2 h7 g4 b5 g2 b6 a4 b7 d2 Rh3 Ne7 Nc3 Na6 b8Q Bb7+ Nd5 f5+ Kf4 Qc8 e4 Ra7 Rb3 Qc3 Nh3 g1B Bg2 g3 Qh5 d1R Rab1 a1B R1b2 Rg8 h8Q Nb4 Bf1 g2 Bd3 Bb6 Bd2 Rg1 Be1 Bh6+ Qg5 Rg7 Bh4 Rd1 Ra2 Rg8 Qc8 Bb2 Qc5 Bg7 Qg3 Bc1+ Qge3 Qd2 c3 Nc2 Rab2 Na3 Rc2 Kf7 e6+ Kg6 e5 Bf6 Qg7+ Kh5 Rcb2 Qc2 Be4 Qb1 Rd2 Qb2 Qf8 Rg3 Qed4 Nc6 e7 Nb4 e8N Nbc2 e6 Ne3 e7 Ba8 Nb4 Bd5 Nc6 Bh8 Qff6 Bg7 Ke5 Kg4 Kd6 f4 Bd3 Kf3 Qf8 Rb7 Nf6 Bh8 e8B Bg7 Nh7 Be5+ Ke7 Ra7 Beg6 Rb7 Ke8 Rc7 Kd8 Nb1 Bb5 Na3 Rd3 Ke2 Ne7 Kf1 Be4 f3 Bc4 f2 Rd2+ Ke1 Qh6 f1Q Bcd3 Qf6 Nf2 Rf3 Qf4 Rh3 Re2+ Kf1 Rc2+ Kg1 Rd2 Ra7+ Kc8 Rc7+ Kb8 Nf1
q1k1nQ2/BNP2Rbr/b1n1pr2/1NR2QB1/2Nqr1p1/pK5B/1R3r1q/8 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 a5 h4 d5 f4 Kd7 b4 g5 c4 d3 Kc3 a4 c5 a3 f5 e3 c6+ Kc7 h5 d2 f6 g3 h6 g4 b6+ Kd6 b5 e6 b7 Kc7 h7 g2 b6+ Kd6 f7 d4+ Kb3 d3 c7 Kd7 Qc2 d1R Ne2 g1Q Nd4 d2 Bh3 e2 Qf5 e1Q Nb5 Qh2 Rf1 Bg7 f8Q Nc6 b8B Ra4 b7 Nf6 Ba7 Qee5 b8R Ba6 Ra2 Qef4 Rc2 Qd4 Rc5 Ne8 Rb7 Qa8 Rb8 Rg8 h8N Re1 Rb6 d1R Bg5 Kc8 Nf7 Rh8 Nd8 Re4 Nb7 Rh7 Nd2 Rde1 Nc4 R1e2 Qe5 Ra2 Rf7 Rf2 Qd5 Ref4 Qf3 Rf6 Qf5 Nb8 Rd6 Nc6 Rdd5 Qde5 Rd2 Qa1 Rb2 Qag1 Ne5 Re4 Nc4 Qa1 Ra2 Qae5 Rb2 Qd4
3nB3/qQPq4/1rrp1KN1/1n2R1n1/1N4bn/Q3p3/B1RpR2Q/2bkB2q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 a5 b6 h5 c3 e5 b5 e3+ Kd3 a4 b7 a3 g5 e2 b6 a2 g6 h3 f5 h2 g7 h4 f6 h3 f7 Nh6 g8B Ra6 Nf3 Nc6 b8Q Na7 b7 Nb5 Bd2 Rc6 Nh4 Ba3 f8R+ Nf7 Re8 Bc1 Na3 Rhh6 c4+ Kc5 Ke4 e1N Kf5 d3 Qc7 Kd4 b8Q e4 c5 e3 Re5 Nf3 Ng6 N3g5 Be1 d2 Qbb7 Kc3 Nc2 Kb2 Rg1 h1N Nb4 h2 Qa4 Rb6 c6 Ng3+ Kf4 h1Q Rg2 Kc3 Re2 Nf5 Bh3 Nh4 Qa3+ Kd4 Rb1 a1Q Rb2 Qe8 Be6 Nd8 Bgf7 Qe7 Bb3 Kc3 Be8 Qg7 Qd6 Qh7 c7 Qe7 Qaa8 Qa7 Ba2 Qg7 Qe6 Qe7 Qh3 Qd6 Qh2 Qd3 Nh8 Rhc6 Ng6 Qdd5 Kg4 d6+ Kh5 Bg4+ Kh6 Qe6 Kg7 Qd7+ Kf6 Kd4 Rd5+ Ke4 Rc2 Kf3 Re5 Qb8 Qa3 Qa8 Rg2 Qa7 Bf2 Ke2 Be1+ Kd1 Rf2 Rc4 Re2 Rcc6
1R4Q1/2P2npB/3p2nN/N1rkNb2/Q2q1b2/1K1R3R/4Qnqp/r1Bq1q2 w - - 0 1 illegal: No proof kernel
3r1Nk1/2P2p2/3RNBb1/r2Q4/2RKp1QB/r5b1/qqprB2n/2nRn1Q1 w - - 0 1 illegal: No possible last move
bn1N3N/1BpqQN2/3R4/1n2q1rr/3pBbk1/BnpR4/Q4P2/1Kb2Rb1 w - - 0 1 illegal: No proof kernel
N2b3R/2pq1Bb1/4BQb1/R3NP2/1kq5/1pNrpbKQ/3B2Q1/rnr1n3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 f4 Kd6 Kf2 b5 g4 h5 a4 e5 a5 b3 g5 b2 g6 h3 g7 h4 a6 e3+ Kf3 e2 a7 e1B Nd2 b1R Ra2 e4+ Ke3 h2 Ne2 h3 Ra1 b4 Ra6+ Nc6 Ra5 b3 Qc2 Bf5 Qb2 Nge7 g8B Nb4 Nc3 Qd7 Bf7 Bg6 f5 Bg7 Kf4 e3 Bc4 Rhd8 Nf3 Nc2 Bd2 Rc1 Ne5 Bh4 Be6 Bhf6 Kg3 Ne1 Qa2 Nc6 Qc2 Nb4 Qe4 Bg5 Qg2 Nbc2 Bf7 Na3 Be6 Rab8 a8N Nb1 Bf7 Rb4 Be6 Ra4 Bf7 Ra1 Be6 Ke7 d6+ Kf8 d5 B5f6 Rf1 h1Q Rf4 h2 Rh4 Qf1 Rh7 Qe8 d7 Ke7 Rh8 Kd6 Bf7 h1B Be6 Rb8 d8Q+ Qd7 Qh3 Rb4 Qg8 Bf3 Bf7 Rb5 Be6 Kc5 d6 Bd8 Bcd5 Qc6 d7 Kb4 Bf7 Qfc4 Bde6 Be7 d8Q Rd5 Qdf8 Rd3 Qd8 Bg5 Qd4 Qd7 Qdh4 Bd8 Qf6 Bf8 Qgg7 Bgh5 Qgg4 Bg6 Qg2 Bh6 Q4h3 Bg7
1K1rn1RB/2p3Q1/1RQ3QN/p2P1b1p/3n4/3BB1NR/1bbrq2r/1k1q3r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 h5 g5 a5 b6 f6 b7 f3 g6 h3 g7 h2 Nc3 f2 Rb1 Ne7 g8Q Bd7 Nh3 Nf5 Kd5 Na6 b8B Ng7 e4 f5 e5 f4 e6 f3 e7 Bc8+ Kc6 Bd7+ Kb7 Ne8 Ne4 c3 Qg7 c2 Bd3 Kb3 Be3 Ka2 b4 f1Q b5 c1R b6 f2 Qdg4 Bf5 Ba7 Rc2 Q4g6 Nb8 Nhg5 Qe2 Nf7 f1B Ng3 Nc6 Nh6 Qd5 Rb3 Rd8 Rg1 h1R Rc3 Nf6 e8Q Ba3 Qe6 Qb3 d5 Nd4 Rg2 Rd2 Qc6 Qbd1 Rg1 Rhg8 Rb3 Bc8+ Kb8 Bb2 b7 Ne8 Bc5 Rf8 Be7 Rf3 Bf6 Rf2 Rb6 Rfh2 Rg2 Rh3 Rh2 Rh4 Rh3 Bf5+ Ka7 Bg2 b8R Bge4 Rc8 Ka1 Kb8 Ka2 Bb5 Bc2 Bd3 Kb1 Be5 Rd7 Rd8 Nf6 Rg8 Ne8 Qe7 Rd6 Bh8 Rd7 Qeg7 Rd8+ Ka7 Rf4 Kb7 Rf2 Ka7 Rfh2 Kb7 Bc8+ Kb8 Bf5+
N1B5/1bpqq1R1/N3pBQK/3Q1n2/Pbq1NRQ1/3q1n1b/p2r1rR1/4k3 w - - 0 1 illegal: No proof kernel
1n2b2k/1Qp1Np1N/B1prQPQ1/r2qR3/B1r4n/2b4R/nq2n3/1KR4B w - - 0 1 legal: proof: h4 e5 c4 g5 a4 gxh4 d4 Bg7 c5 Bh6 c6 Bf8 Be3 dxc6 d5 b5 Bd4 exd4 axb5 Ke7 Ra5 Kd7 Ra1 Ke8 Kd2 a5 Kc1 h5 f4 d3 g4 a4 b4 a3 e4 h3 d6 a2 b6 h4 g5 h2 g6 h3 b5 Nd7 b7 Ra6 b8R Ndf6 g7 Rh4 d7+ Ke7 e5 Ra7 f5 Ra3 e6 Ra8 b6 Ng4 b7 Kf6 e7 Ne5 e8B Bd6 Qe1 Rg4 Bg2 Ng6 Nf3 Nh4 Ng5 Be5 Nc3 d2+ Kc2 d1R Rc1 a1N+ Kb1 Nb3 Be4 Qe7 d8Q Rd6 Bd7 Ra5 Qg1 Bd4 Qe8 Qe5 Ra8 Qb5 b8Q Qb6 Be6 Bd7 Bc4 Be5 Qec8 Be8 Ba6 Qb5 Bc2 Rc4 Qbb7 Qd5 Qg3 Qg2 Rhe1 h1N Rb8 Bd4 Re5 h2 Be4 Qd2 Qd3 Ng3 Bh1 Ne2 Qg3 Ne7 g8B Kg7 f6+ Kh8 Nd5 Nc5 Qe6 Bc3 Bh7 Nd7 Bc2 Qd4 Ra8 Nb8 Nh7 Qd2 Qg6 Qd4 Ne3 Nd5 Ba4 Nb4 Nd5 Na2 Ne7 Qf2 Ra7 Qd4 Qbc8 Qd2 Rb7 Qd4 Rb3 Qd5 Qb7 Qb5 Be4 h1Q Bf3 Qh2 Bh1 Qd5 Ra3 Bb4 Rh3 Bc3 Qbc8 Qf2 Qb7 Qfd4 Bg2 Qd2 Bh1 Qb2+
1R1N3Q/1P2Qb1B/rq3r1r/p1Brb1q1/2nB4/K4Q1n/1pp3Nk/1R4Nn w - - 0 1 illegal: No proof kernel
B1kN2BQ/1p3pp1/n2b1PKB/N1q3bN/r2b4/r3Q1b1/Qq2n1R1/5Rq1 w - - 0 1 illegal: Other
Q4R2/P1br4/q1B1n3/Qr2NQ2/q1Rp3R/BN1p3b/3nNp1q/1r2rk1K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kg2 Kd6 a4 Ke5 h4 Ke4 c4 f5 c5 g5 h6 b5 h7 d5 a5 f3+ Kh2 d3 e3 f2 h5 g4 c6 f4 a6 g3+ Kg2 b3 a7 b2 h6 Nd7 c7 f3+ Kh3 g2 Kh2 Qh4+ Nh3 Nc5 Qd2 Nf6 Qa5 Rb8 Ra4+ b4 Be2 f1Q Bd1 Bg4 c8Q f2 Bc2 Kf3 e4 Ke2 e5 g1R e6 b3 e7 d4 e8R+ Nfe4 Nd2 b1R Qf5 b2 Rc4 Rb5 Ba4 Ne6 Nb3 Nd2 Ra8 Rg8 h8Q Rg7 h7 Qd1 Qg8 Qc2 h8N Re1 Nf7 Bd6+ Ne5 Bc7 Rf8 Rd7 Qh8 Qf6 Ng1+ Kf1 Qg8 Bh3 Qh8 Rb7 Bc6 Rb5 Qg8 Ra1 Qh8 b1Q Bb2 Qa2 Ba3 Rab1 Qg8 Ng5 Qd5 Qh8 Qde4 Ne6 Qd5 Rf7 Qd8 Qh6 Qa8 Rd7 Qb4 Nf4 Nc5 Qg7 Bb2 Qa6 Qa5 Ne6 Ba3 Qa4 Nb3 Qg4 Rb8 Bg2 Rf8 Bf3 Ne2+ Qg1+ Kh3 Bh5 Rh2 Qh1 Kg3 Bg4 Rh4 Qf3+ Kh2 Qf4+ Kh1 Bh3 Bb2 Qg3 Ba3 Qh2+
QQ4B1/pn5r/q1QB1r1N/b1nRPb1n/2n4q/1q3Rpk/3R1p2/2BN1K2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 d5 h4 g5 h5 f5 h6 f3 c5 f2+ Ke2 g3 c6 f4 c7 f3+ Kd3 g4 e5 Kf5 b6 g2 h7 g3 b7 Kg4 b5 Nc6 b8Q Bf5+ Kd2 d3 c8R d4 b6 Nf6 b7 Na5 Qe2 Bb4+ Rc3 Ne4+ Kd1 d2 Qc4 Qh4 Qe6 Nc5 Nh3 g1N Bc4 Ne2 Rh2 Nf4 Qc6 Nh5 Bg8 f1N Re2 f2 Rf3 Bc3 Ng5 Bb4 Re1 Ne3+ Ke2 Nec4 Ra2 d1Q+ Kf1 d3 Rd2 Qb3 Nf7 Kh3 Nc3 Qa2 Red1 Qa3 Qbc7 Rf8 b8B Nab7 Nh6 Qa6 Qd8 Ba5 Bd6 Rf7 Qb8 Rf6 Bd5 Rg8 h8Q Rg7 Qa8 Rh7 Qhb8 Qb5 Bg8 Qa6 Rb2 d2 Rb5 Na4 Rd5 Nac5 Re1 d1Q Rd2 Qa4 Nd1 Rh8 Rd5 Qb4 Re2 Qb3 Red2 Rh7
k5Bb/pqQp1NRR/7p/Bnr3B1/3K1Q2/qRNQP1n1/q1b1qr2/3n4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 c4 d3 g4 h3 b4 d2 b6 h2 b5 f3 Ke3 f4+ Ke4 f2 g5 h6 c5 f3 g6 Nf6+ Ke3 Bg7 c6 Rf8 b7 Qe7+ Kd4 Kd8 b6 Na6 b8Q Nc5 b7 Bh8 g7 Nh5 Qf4 Ng3 b8B Nce4 Ra3 Bb7 c7+ Kc8 Nc3 Nd6 Rb3 Be4 Nh3 Bc2 Rg1 h1Q Ng5 Qe6 Bg2 f1Q Nf7 f2 Bd5 Qfh3 Qf1 d1N e3 Q3h2 Bd2 Qe7 Qd3 f1Q Rg2 Qe2 Be1 Nf1 Bh4 Ng3 Bg5 Ne8 Be6 Qa3 Rf2 Qb7 Bc4 Nf6 g8R Ne8+ Rg7 Nd6 Rg2 Re8 Rg1 Re5 Rh7 Rc5+ Ne5 Bb1 Bg8 Qea2 Rg2 Bc2 Rg1 Qe2 Rg2 Qb5 Rg1 Kb7 c8Q+ Kb6 Qd8+ Kb7 Bc7 Rc8 Bb6 Ka8 Qc7 Rf8 Ba5 Rf6 Nf7 Qb7 Qe5 Rf2 Qf6 Re5 Qf4 Rc5+ Bf6 Nh1 Rgg7 Ng3 Bg5 Nb5+
QK6/1RnBRB1r/3pp3/1N1N4/pQb1qr2/QbR2bb1/PbN4b/3n3k w - - 0 1 legal: proof: e4 g5 d4 f5 h4 fxe4 hxg5 c5 c4 b6 Bf4 Na6 Bd6 cxd4 c5 Nb8 c6 Bh6 Bb4 Bf8 Bc5 bxc5 Ke2 Kf7 g4 Ke6 b4 Kd5 f4 h5 c7 a5 g6 h4 g5 d3+ Ke3 d6 b5 d2 b6 h3 g7 a4 b7 h2 g6 c4 f5 c3 f6 c2 f7 c1B Ne2 Nf6 g8N Na6 b8Q Bg7 f8Q Qe8 Qb4 Be6 c8R Rh7 Bh3 Nc7 Na3 Bb2 Re1 h1B Nb5 Bf3 Qc1 d1B Rb1 Bb3 Ned4 Ng4+ Kf4 e3 Nc2 Bf7 Kf5 Bge5 g7 e2 Qe3 Bc4 Qea3 Nf2 Bg4 Bh2 Nf6+ Kc6 g8B Nd1 Bh3 Bb3 Bg4 Bfc4 Bf7 Rb8 Nd5 Rb7 Rf1 e1B Qg8 Beg3 Re1 Qf8 Re3 Qg7 Rc3 Qd4 Rb8 Ra7 Rb7 Qe3 Qa8 Qe4+ Kg5 Ra5 Bc8 e6 Kf6 Ra7 Ke7 Rh4 Kd8 Rf4 Nb6 Nd5 Rd7+ Rb7 Re7 Nc7 Nd7 Kd5 Nb6+ Ke5 Bd7 Kf5 Kc8 Kg4 Nd5 Kh3 Nde3 Ra7 Nd5 Kg2 Kb8 Kh1 Bg6 Rf5 Rh7 Qd4 Bc8 Ne8 Qc5 Qe4 Nbd4 Rf4 Rg7 Raf7 Bd7 Bc1 Qb5 Nc7 Qba5 R7f5 Re7 Rh5 Bf7 Rhh4 Na1 Bc2 Rb7 Rh7 Q5b4 Bb2 Nb5 B2b3 Nc2 Bf1 Qc5 Bd3 Qcb4 Bdc4
3nQrbk/b3r1N1/p2BN2B/r1p1r1r1/1RP1q3/5p2/1B1NQ3/R1K1Rn1r w - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 h4 e5 b4 f5 d4 Kf7 Kd2 Kg7 c4 g3 g6 e3+ Kc2 g2 h5 e4 d5 f3 d6 f4 d7 e2 b6 e1R b5 e3 b7 e2 b6 f2 Qd5 f1R Qe4 f3 Nd2 Qe8 d8N Nc6 b8R Be6 b7 Bc5 Nh3 g1R Nf4 Nf6 h6+ Kg8 g7 Nh5 Kb1 Ng3 Nh5 a6 Qd3 Ba7 Kb2 Bd5 Ne6 Nd8 Kc2 c5 h7+ Kf7 Kb1 Rf2 Qe4 Nf1 Qc2 Rf8 h8B Rg5 Qb2 Kg6 g8Q+ Kh6 Rg1 Rh2 Bd4 Rh1 Nhg7 Re5 Qf7 Kh7 Qe7 Qc6 Qe8 Kh8 Qc2 Rd1 Bb2 e1R Qd3 R1e4 Qe2 Rg4 Kc2 Rgg5 Kb1 Ne3 Re1 Nf1 Ne4 Rd3 Bf4 Rb3 Nd2 Ra3 Kc1 Ra5 Be3 Rg6 Bh6 Rgg5 Rc8 Rb8 Rc7 Rc8 b8B Qa8 Rc6 Rc7 Rb6 Re7 Rb4 Qc6 Bd6 Qb7 Nf4 Bg8 Nfe6 Qe4
b1Kb2QR/k3Bqr1/2r1N3/1Q2ppnn/3bP3/2B3r1/NR2p3/Nr1R1Qb1 w - - 0 1 illegal: No proof kernel
Rr2R2n/nB2N2b/1p4pP/2k1rn2/3p3b/2nr3r/1Q1N1QNB/Q2RqK2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 d5 c4 Kd7 a4 Kd6 f4 e5 h5 e4 a5 b6 f6 d3 f7 e3 f5 d2+ Ke2 b3 f6 d4 a6 g3 a7 b2 Rh2 g2 Nf3 g1R Bg2 Nc6 Ne1 Be7 f8Q Kc5 f7 Rb8 a8R Na7 Bb7 Nh6 Ng2 Qe8 Qa4 d1N Nd2 b1N Qb5+ Kd6 Qb2 Bf5 Rh1 Bh7 c5+ Ke6 c6 Kd5 c7+ Kc5 c8N g6 Qg7 Bh4 f8Q+ Qe7 Qf3 Nf7 Qf2 Qe6 Ne7 Nbc3+ Kd3 e2 h6 e1R Rh3 Rhc8 Re3 Nh8 Qg8 Qe5 Qga2 Rh1 Rb1 Re8 Qaa1 Ref1 Re1 Ne3 Re2 Nf5 Re3 Nd5 Ke2 Rh3 Re4 Rfh1 Re3 R1h2 Kf1 Nc3 Nc8 Rf3 Nc4 Qe7 Re6 Nd6 Bf4 Re3 Rd1 Rhh3 Bh2 Rd3 Nd2 Nf5 Re4 Rd8 Re2 Rd5 Ree1 Qg7 Re8 Qe5 Ne7 Qe3 Nc6 Re5 Ne7 Qe1+
R2NnB2/1n4rp/npB5/b1p2kNn/3R3q/1N1RBKrb/1Q3bPQ/7b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 a4 e5 f4 b6 d4 e3 d6 Ke6 d5+ Kf5 d7 b3 a5 h3 a6 e4 a7 b2 d6 h2 Ra3 Na6 Qa4 Qh4 d8R Nf6 d7 Bb4 Qc2 c5 Rb3 Rg8 Nf3 Ba5 Nbd2 b1N Rg1 h1B Rd3 Ne8 Ng5 Na3 Nb3 Nc4 Qb2 Ncd6 Bd2 Rb8 a8Q Rb7 Qb8 Rc7 Bc1 Nb7 Rd4 Rc6 Qd6 Rg7 Qh6 Rcg6 Bd2 Kf6 f5 Ke5 f6 Kf5 Ne6 Rg4 f7 Ned6 Rg8 Ne8 d8N Bd7 f8B Bc8 Ng5 Be6 Kd1 e2+ Kc1 e1B Kd1 e3 Ke2 Bd7 Kf3 Bf2 Bb5 e2 Rd1 Be6 Bc6 e1N+ Ke2 Nd3 Be3 Nf4+ Kf3 Bc8 R1d3 Nh5 Qd6 Be6 Qh2 Rg3+ Ke2 Ke5 Be7 Bh3 Nde6 Nec7 Ra8 Kf5 Bf8 Ne8 Nd8 Rg4 Kf3 Rg3+
1nr3bk/Rn1n1p2/1N5p/1R1B1b2/1K1R3r/1r2QP1n/1p3N2/B1NqrB1Q w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 Kd2 d5 e3 d3 Nc3 d4 Nb1 Bg7 Ke1 d2+ Ke2 d3+ Kf3 Bd4 exd4 Qa5 Ke3 Qd8 c4 Kf8 a4 Kg7 g4 b5 g5 e5 c5 e4 g6 h3 c6 h2 c7 b3 f3 b4 a5 h6 a6 b2 d5 b3 Kd4 e3 Kc3 e2 a7 e1R d6 Bf5 c8N Qd7 Nb6 Nf6 Nh3 Rc8+ Kb4 Kh8 Nc3 b1B Nf2 Bc2 Rg1 h1R Na2 Rh4+ Rg4 Qd8 Rd4 Nfd7 Bb2 Bb1 Qe2 d1N Qe3 d2 Nc1 Nc3 Ra5 d1N Rb5 Ne4 Ba1 b2 g7+ Kh7 g8B+ Kh8 Bh7 Nec5 Bg6 Nb7 Bh7 Bg4 Be4 Bf5 Bd5 Bh7 Re4 Bg8 Rd4 Nf8 d7 Bf5 Qd2 Rc3 Qe3 Rb3+ Ka4 Qf6 d8Q Qd6 Qdg5 Nfd7 Qg2 Na6 Qg1 Rc8 a8R Nab8 Ra6 Bd3 Qh1 Bf5 Ng4 Nf2 Ra7 Nh3 Nf2 Qe7 Qc3 Qe2 Qe3 Rd3 Kb4 Qd1 Nc4 Rc3 Nb6 Rb3+
2Bkn3/P1bbR3/3Q2QK/pNqBn1r1/1r2n3/r1n2RQN/p2p3N/B5r1 w - - 0 1 illegal: No proof kernel
2Qq2R1/2n2p1r/3Rp2r/QN1r1NbN/1BR5/r3pbbK/3r1P2/k2qQB2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 Ne2 a5 Ng1 axb4 c3 gxh4 Rh3 b5 Rh2 b3 Rh1 Nc6 c4 b4 Be2 Na7 Bf1 Nb5 cxb5 Ra4 Qe2 Ra5 Qd1 Ra8 a4 Kd7 d4 Ke6 g4 Kd5 a5 c5 a6 h5 a7 h3 b6 h2 g5 c4 b7 e6 b8R h4 g6 c3 g7 h3 Bg2 Kc4 Kf1 b2 d5 c2 d6 Kb3 d7 Ne7 g8N Nd5 Bf4 Nc7 Ne2 Rh6 Rb7 Bd6 Na3 b1Q Qe1 Kb2 Nf6 c1B Rb6 b3 Ng3 Bb7 Rg1 h1R Nb5 h2 Nf5 Bd5 Be3 Bg3 Bc5 Bg5 Nh5 e3 Ra4 Bf3 Rc4 Qd1 Rd6 Ka1 Bb4 b2 Bh3 b1R Bg2 Qe7 d8Q Rb2 Qc8 Qd8 Bh3 Ra2 Bg2 Ra3 Bh3 Rb8 a8Q Rb6 Qaa6 Rc6 Qa7 Rc5 Qa5 Rd5 Bg4 Be2+ Kg2 Bf3+ Kh3 Rh7 Rg2 Rf1 Qd2 Re1 Rg1 Re2 Qe1 Red2 Rg2 Be4 Be2 Bf3 Bf1 h1R+ Rh2 Be2 Kg2 Bf6 Nhg7 Bf4 Rh3 Bg4 Rg3 R1h6 Nh5 Bf3+ Kh3 B6e5 Rg7 Bg5 Rg8 Bg3
1B3n1N/pp1rQ2p/1qR1b2R/R1r1Q1r1/1bN5/N1b1bb2/BP1Bq3/3K1k2 w - - 0 1 illegal: No possible last move, all moves rejected
4B1N1/k1NnbQ1R/1qb1pN2/b4b1r/1Q3b1p/2R2R2/pQ1bP1K1/2rbB3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h3 g5 Nd2 g3 Nb1 Nc6 h4 g4 Bf4 Ne5 Bd2 Nf7 Bc1 Ng5 hxg5 Ba6 Bf4 Bb7 Bc1 Bc8 b4 d5 c4 Kd7 f4 Kc7 b5 Kb7 g6 h5 g7 a5 c5 a3 b6 d3 f5 d4 f6 g2 Kf2 h4 f7 a4 Bd2 a2 Na3 g3+ Kf3 Rh5 Rh2 Nf6 g8N Nd7 Be1 d2 Nb5 d3 Qc2 d1B Qb2 a3 Rh3 d2 Nc7 Ba4 c6+ Kb8 b7 d1B Rc1 a1B Rc3 Ka7 b8R Bh6 f8Q a2 Qf7 Bd2 Rb4 Bb5 Rg4 Rb8 Rg7 Bba4 Qb4 Bb2 Rh7 Ba3 Na8 Qb6 c7 Bac1 Qb2 Bf4 Qb4 Bcd2 Qb2 Ba6 c8Q e6 Nc7 Bd3 Qcf8 Rc8 Qfb4 Bb1 Rh1 Bbc2 Nh3 g1B Kg2 Bf5 Ng5 Bc6+ Ne4 Bc5 Rh3 Bf8 Rf3 Be7 Nef6 Ba8 Ncd5 Rc1 Nc7 Bae4 Kh1 Bc6 Bg2 Qb5 Kg1 Qa6 Bh1 g2 Rc3 Qa5 Rhf3 Qa6 Kf2 g1B+ Kg2 Qb6 Qd4 Ba8 Kf1 Nb8 Rfe3 Qc5 Bc6 Bf2 Be8 Bc6 Rf3 Nd7 Qc4 Qb5 Qe4 Bb6 Qeb4 Ba5 Kg2 Qb6
3qk1N1/1R1rqb2/1p1RbQr1/rP1Q1Qn1/B7/1Kr3qp/2NB1p1b/3NB3 w - - 0 1 illegal: No possible last move, all moves rejected
2b1k1b1/Q1nn2bB/4n2B/pR2rp2/7K/1NQ1qqNp/2b2P2/1NQ1q1RR w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 h5 bxa4 h6 gxh6 Rh4 h5 Rh1 h4 e4 d5 Ra3 a5 Kd2 d3 Ke1 d4 Ra1 Ra6 Qh5 Rd6 Qd1 Rd5 exd5 Bd7 Qe2 Bf5 Qd1 Bc8 g4 h5 b4 e5 c4 a3 b5 e4 c5 h3 g5 h4 d6 h2 b6 e3 g6 e2 g7 a2 c6 h3 c7 Ne7 g8Q Nd7 b7 Nd5 b8R Qg5 Qh7 Qe3 Rb5 Bg7 Qc2 f6 Qc3 Rf8 Bg2 Rf7 Bf3 Re7 Be4 Re5 Bf5 Qg3 Bh6 Qe3 Be6 f5 Bg8 Qe4 Kd2 e1N Kd1 d2 Ne2 Ng2 Ng3 Ngf4 Rg1 Ne6 Rh1 Ne3+ Ke2 Qd3+ Kf3 d1Q+ Ne2 Qe4+ Kg3 d3 Qc1 Qf3+ Kh4 d2 Ng3 Qb3 Rg1 h1B Qc3 d1B Qc1 Ba6 c8Q+ Nd8 Q8c6 Nd5 Q6c3 Bg2 Rh1 Bc8 Rg1 Bc2 Rh1 Nb8 Rg1 Ne6 d7+ Kf8 d8N Ke8 Rh1 Ndc7 Nc6 Nd7 Nd4 Qa3 Nb3 Bf1 Qc5 Bc4 Qa7 Qc5 Qh8 Qce3 Bh7+ Nef8 N1d2 Bg8 Rb1 a1Q Rg1 Qb2 Ra1 Nfe6 Nb1 Qbc3 Rh1 Rd5 Rg1 Qce1 Rh1 Bb2 Qc3 Re5 Qd1 Kf7 N1d2 Rd5 Qb4 Bg7 Qc3 Qf1 Rc1 Ke8 Nb1 Q1e2 Qdd2 Re5 Rcg1 Qf1 Qc1 Qfe1
2q1bBR1/rp1B2q1/r1p1N1p1/2Rn3R/2K4Q/rn2Q2r/B1P5/n2NN1qk w - - 0 1 legal: proof: g4 a5 e4 f5 b4 axb4 h4 d5 h5 dxe4 h6 fxg4 Rh2 g6 Rh1 Bg7 hxg7 Be6 Ke2 Bd7 Ke1 Bc8 Ke2 Kf7 f4 Ke6 d4 Kd5 a4 h5 a5 e5 f5 h4 a6 e3 Kd3 h3 a7 e4+ Ke2 h2 f6 b3 f7 g3 f8R b2 Re8 c6 Ra6 g2 Qd2 Bd7 Qc3 Nf6 Ra1 Na6 Qd3 Rh3 Ra5+ Nc5 Rf8 Be8 Rb5 Qc8 Nf3 g1Q Ne1 Rf3 Rg8 Rg3 Rb4 Nb3 Rc4 Na1 Bh3 Rf3 Bd7 Rg3 Nd2 b1N Nf1 Nd2 Ba3 Rh3 Bf8 Rf3 Kd1 e2+ Kc1 e3 Kb2 Rg3 Kc3 Ndb3 Qd2 Ke4 Rc5 Rf3 d5 Rh3 d6 Nd5+ Kc4 Kf4 Ng2+ Kf3 Qd4 e1R Qh4 e2 Nfe3 Rb1 Nd1 e1R Be6 Re3 d7 Nc7 d8N Nd5 Bd7 Rb2 Ne6 Ra2 Qh5+ Kg3 Ne1 Ra6 Qh8 Nc1 Qh6 Rea3 Qd2 Ncb3 Qd4 Rb8 a8Q Ra7 Qe4 R7a6 Qa7 Ra8 Qb6 R8a7 Qd8 Qf2 Qe3+ Qf3 Rf1 h1Q Qh4+ Kh2 Rg1 Qf5 Rg5 Qg1 Rh5 Qfg5 Rgh8 Qh6 g8B Kh1 Bf7 Qg7 Rg8 Qg2 Ng5 Nf6 Kb4 Nc1 Ba2 Qg1 Kc4 Ncb3 Ne6 Nd5
1b5N/Q1n1Q1bp/2NB1q2/2p1p3/n1n4k/1RB2nR1/B1b2K1P/2Qb1brR w - - 0 1 legal: proof: c4 b5 f4 d5 e4 dxc4 g4 f5 b4 fxe4 f5 a5 g5 axb4 Bd3 Ra6 Bf1 Rf6 gxf6 Ba6 Nf3 Bb7 Ng1 Bc8 d4 Kf7 a4 c5 a5 g5 a6 c3 d5 c2 a7 e3 a8Q b3 d6 b4 d7 e2 Qe4 b2 Qf4 b3 Qe5 g4 Bf4 c1N Qd3 g3 Qee3 g2 Qed4 Nc6 Qa4 Ne5 Bd2 Na2 Qc2 Ba6 Nc3 b1B Ne4 b2 Bc3 Nc4 Qc1 Bc2 Nf3 g1N Rb1 Bd1 Kf2 Bg7 Nd4 Nf3 Nc6 e5 Bh3 Ne7 Bf1 Qb6 d8R Rg8 Rd3 Nd5 Bg2 Nc7 Ng5+ Ke8 Nf7 e1B+ Kf1 Kf8 Nh8 Bh4 f7 Be7 Qa5 Bd6 Kf2 Bb5 Qa7 Ba6 Na5 Ke7 f8B+ Kf6 Nc6 Bb5 Re3 Kg5 f6 Kh4 f7 Ba6 Bh3 Bb5 Be6 Ba6 Ra1 b1B Rg1 Bb5 Rg3 Bbc2 Rb1 Qa6 Re1 Qb6 Rh1 Ba6 Rb3 Bb5 Bb4 Nc3 Bd5 Na4 Bc3 Qb8 Be6 Qd8 Bd5 Qf6 Be7 Na8 f8Q Bb8 Bd6 Nc7 Qe7 Ncb6 Rb1 Bf1 Ba2 Nc4 Rb3 Bf8 Qb6 Rg4 Qa7 Bg7 Rg2 Rd4 Rg6 Rg4 Rg5 Rg1 Rg6 Bcd3 Rg3 B3c2
3kqr1N/1BpBb3/K3bn2/1Qr3pr/2q3P1/2RNp2R/1Rr2Q2/BQ1b2b1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 fxe4 c5 axb4 h5 Nc6 Qa4 Ne5 c6 Ng6 hxg6 dxc6 Qb3 c5 Qd1 c4 Ke2 h5 a4 b5 f4 e5 g4 h4 d4 h3 f5 e3 g7 e4 f6 b3 a5 h2 d5 c3 f7+ Ke7 d6+ Kd7 a6 b2 a7 b4 Nd2 b1B Ra3 c2 Nc4 b3 Nf3 b2 Nfe5+ Ke6 d7 Ke7 Ng6+ Kf6 Nce5 Rh7 Nh8 Ke7 Rc3 Qe8 d8R Rh5 Rd2 Be6 Nd3 Nf6 g8Q Kd8 Bg2 Be7 f8Q Rb8 a8B Bba2 Qg1 b1Q Bb7 Qb3 Bb2 c1R Ba1 Qc4 Rb2 Bb3 Bc8 Rb5 Bd7 Rc5 Qg6 Rf1 Qf5 Rf4 Qb1 Bd1+ Ke1 e2 Kd2 e1B+ Ke3 Qa6 Kd4 e3+ Be4 Rf2 Bb7 Rc2 Qd5 Qa4+ Qc4 Qa6 Qb5 Bf2 Qf7 Bg1 Qf8 Rd5+ Kc4 Rc5+ Kb4 Qc6 Ka5 Qe4 Ka6 Qc4 Ng6 Rh8 Qf7 Rf8 Nh8 Bf2 Rg1 h1R Rg3 Bg1 Rh3 Nh5 Qf2 Nf6 Rg3 Rh7 Rh3 Rh5
R2N2k1/qQ1q4/R1B2rBK/pp1r4/2Qn1Bq1/Pn2NQn1/2bpq2n/3N4 w - - 0 1 legal: proof: d4 e5 b4 exd4 g4 c5 Bb2 cxb4 Bc1 f5 h4 g5 Kd2 Be7 Ke1 fxg4 Bg2 g3 Bh3 g4 Bf1 Bg5 hxg5 Qa5 Bf4 Qc7 Bc1 Qd8 Kd2 Kf8 c4 b5 f4 d5 e4 h5 c5 b3 e5 b2 e6 g2 g6 d3 Ke3 g3 c6 h4 f5 h3 Kf4 d4 f6 h2 Kg5 d2 c7 d3 Qf3 d1Q Bf4 Nh6 e7+ Kg8 e8B Bf5 c8Q Qe2 g7 Ng4 Qcb7 Rh6 Bg6 Qd7 Nd2 b1N Nh3 g1Q Bg2 Nc6 Nf2 Nd4 Nd1 Rd8 Nf1 Nd2 Nfe3 Qgf2 Rg1 h1N Re1 Nh2 Rg1 Rh4 Re1 Rg4+ Kh6 N2b3 Rg1 Rf8 Rf1 Rg5 Re1 Qef1 Re2 a6 Rc2 d2 Rc8 Bb1 Ra8 Q2e2 a3 Bf5 Rc1 a5 Rc6 Qff2 Rca6 Be4 Qg4 Bc2 Bc6 g2 Qf3 g1Q Bge4 Kf7 Bg6+ Ke6 f7 Qg4 g8Q Ng3 Bb8 Rd5 Bf4 Rc8 f8N+ Ke7 Ne6 Rf8 Qh1 Rf6 Nd8 Qg1 Qe6+ Kf8 Qee4 Kg8 Qhf3 Ne6 Qc4 Qgf2 Nf1 Qa7 Nfe3 Ned4
1n1Qq3/4pq2/N2r2b1/1q1QB1N1/nbRpB1Q1/Bb3p2/3bP2R/2q1Nk1K w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 h5 f4 b5 Bb2 g5 Ba3 Ra6 Bc1 Rg6 Bh3 hxg4 Bf1 g3 Qd3 g4 Qd1 Rg5 fxg5 Bh6 Nd2 Bg7 Nb1 Bf8 c4 f5 a4 Kf7 h4 Ke6 h5 Ke5 g6 Ke4 h6 d5 g7 d3 h7 g2 Kf2 b3 a5 g3+ Ke1 b4 c5 f4 a6 b2 a7 f3 a8Q b3 c6 Be6 c7 Qe8 c8Q Nf6 g8N Nfd7 Ra7 Nb6 Qac6 Bh6 Nh3 g1Q Rc7 g2 Na3 b1B Nc2 b2 Rh2 Na4 Qa8 Qd4 Rc4 g1B Qab7 Bf7 Qg4+ Bf4 Bg2 d2+ Kf1 Bg6 Qb6 Ba2 Qd8 b1Q Ne1 Ke3 Ba3 Qbb5 Nf6 Bb3 Ne4 Qg7 Nhg5 Qgf7 Nc5 d4 Na6 Bd6 Bh3 Bb4 Qc1 Rg8 h8B Rf8 Qb1 d1Q Qbf5 Qc1 Be5 Rh8 Qe6 Rh6 Qed7 Bf2 Qd5 Bg3 Kg1 Bf4 Qgd7 Kd2 Bf5 Kd1 Bb1 Bfd2 Q7e6 Bgc2 Qg4 Rd6 Kh1 Bg6 Ng2 Qg7 Be4 Qgf7 Nf4 Ke1 Ng2+ Kf2+ Ne1+ Kf1
k3b1N1/1N3pp1/1QrB1Pr1/nKRQQnpB/8/NrB2rn1/2n5/1n3Rb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 d4 c5 g5 h6 Ba6 hxg5 Be2 cxd4 Bf1 d3 Nc3 d4 Nb1 Qd5 exd5 Rh4 Bg2 Rh6 Bf1 Rh8 Kd2 Kd7 f4 Kc7 h4 e5 c4 b5 a4 Kb7 c5 e4 a5 b3 d6 b4 h5 b2 d7 b3 d8B Bh3 a6+ Ka7 c6 Ne7 f5 Nd7 h6 Nc5 h7 Nb7 c7 Rc8 f6 Bd7 Ra5 Be8 Qe2 Nd5 Qe1 Bc5 Ne2 Nc3 Nf4 Ne2 Ne6 Ng3 Be2 e3+ Kd1 d2 Rf1 Bb6 Be7 Bc5 Bd6 Bb6 Na3 b1R Nc2 b2 Nd8 Bc5 Bh5 Bb6 Nb4 e2+ Kc2 d1N Kd3 Ne3 Bd2 Nc2 Kc4 d3 Rd5 Bg1 Rc5 Nd4 Nc2 Nc6 Bc3 d2 Ba5 d1N Qc3 e1R Qe5 Re3 Bb4 Kb6 a7 Rf3 Be1 Ka6 a8Q+ Kb6 Na3 Ne3+ Kb3 Nba5+ Ka4 Rf8 h8N Nef5 Ng6 Rh8 Ne7 Rh6 Ng8 Rg6 Bb4 Rc1 Be1 Rcc3 Bd2 b1N Be1 Rb3 Bc3 Rb8 c8Q Rb7 Qe2 Rd7 Qe5 Nb4 Qad5 Ka7 Qcc6 Rc7 Nb7 Ka8 Qb5 Rc6 Qb6 Rd3 Kb5 Re3 Bf8 Rf3 Bd6 Nc2+
3b4/Bp5N/b2krBr1/2N5/bRQ1p2n/p1N3bK/P1Q1r1Bn/3r1RRr w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 c5 Ke1 cxb4 h4 g5 Bb2 Qa5 Ba3 fxg4 Bc1 g3 Nh3 g4 Ng1 Qg5 hxg5 Bf5 Bg2 Bd7 Bf1 Bc8 d4 Kd7 f4 e5 c4 h5 f5 a5 f6 a4 g6 a3 f7 g2 Kf2 e3+ Kg3 e4 d5 b3 c5 e2 g7 e1B+ Kh2 b2 c6+ Kd6 c7 h4 Bd3 h3 Bb5 Bd7 c8R Nf6 g8N Ra6 Qc2 Be7 f8Q Nc6 Nd2 b1B Nb3 Nd4 Be3 Nf5 Ba7 Nh4 Bf1 Ba4 Qf7 Bd8 Ne2 g1R Nc5 Bf2 Bg2 Rd1 Rg1 g3+ Kh1 h2 Nc3 Ng4 Nf6 Re8 Nh7 Re6 Rc7 Be1 Qf1 Rd2 Qc4 Re2 Rf7 Rb6 Rff1 Bf2 Qd2 Bd3 Qc2 Rg6 Rab1 Ra6 Rb4 Rc6 Qd4 Ba6 Qc4 Rc7 Qd1 Re7 Qc2 Ree6 Bf3 Nf5 Kg2 Nh4+ Kh3 g2 Nb3 Ke5 d6 Bg3 d7 Kd6 Nc5 Nh6 Re1 Ng4 Rgf1 g1R Bg2 Ba5 d8B Bc7 Bf6 Bd8 Rf5 Rf1 Ra1 Rd1 Rf1 Rd3 Rf5 Rdd2 Rg1 Rd1 Bg5 Ne5 Rf2 Nef3 Rff1 h1R+ Kg4 Nh2+ Kh3 Ba5 Bf6 Bd8
Qn3n1N/b1rpb2Q/3P4/RK1BB1rB/p2p1bQR/4R1Nr/3n1kn1/7b w - - 0 1 illegal: No proof kernel
nrb2Bk1/1n5b/2bRpQpq/r2pQrR1/Q4N2/1p2P1KB/3B4/1n3N1N w - - 0 1 legal: proof: g4 a5 d4 f5 b4 axb4 h4 c5 h5 cxd4 h6 fxg4 Bg2 g6 Bf1 Bg7 hxg7 Ra5 Nc3 Ra7 Nb1 Ra8 a4 Kf7 f4 h5 Kf2 b5 c4 h4 c5 h3 c6 d3 c7 b3 f5 b4 f6 d2 a5 b2 a6 h2 a7 Qf8 e3 Nh6 g8N Nf5 Bh3 Nd6 Ra6 Qh6 Ne2 Nb7 Rg1 h1B Qa4 d1B Nf4 Bb3 Rd6 Na6 Bd2 Bc6 Kg3 Bc4 Qb5 b3 Qe5 Rb8 a8Q B4d5 Nc3 b1N Ne4 Kf8 f7 Rh7 Kg2 g3 Nf6 Rg7 Kf3 g2 Ng4 Rg8 Nh2 Rg7 Rd1 g1R Nf1 Rg5 Re1 Rh5 Kg3 Rf5 Nf2 Be6 Nh1 Rh7 Qb5 Kg7 f8B+ Kg8 Rc1 Bf7 Qe5 e6 Qf6 Ra5 Rd5 Rh8 Rg5 d5 Qe5 Qg7 Rc5 Rh5 Rb5 Qh6 Rb6 B6d7 Rd6 Bc6 Rg4 Rf5 Rg5 B8d7 c8Q Nc7 Qa6 Na8 Qd8 Bc8 Qb5 Kh7 Qa4 Bg8 Qee4 Kh8 Qe7 Bh7 Qe5+ Kg8 Qd8 Na3 Qdf6 Nb1
1Qb3nk/RN2QB1q/pR3Prr/1p1BN3/2pQ3b/2Bp4/2rK3b/1nN3n1 w - - 0 1 illegal: No possible last move
QnB1Q1n1/pnk1N1bR/P6R/3r2N1/1r4bp/b3qpp1/1BB4N/R1K2r2 w - - 0 1 illegal: No possible last move
3q1Bq1/3R2b1/3Q3p/k2NNn2/1r2b1BP/pKp1Q1RQ/rBnp1q1b/3R4 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 exd4 a4 d5 axb5 dxc4 Qd2 f5 Qd1 fxg4 Kd2 Kd7 Kc2 g5 e4 a5 h4 c5 b4 Kc7 f4 Kb6 f5 c3 e5 a4 e6 c4 f6 h6 e7 g3 e8Q g4 f7 g2 Qee2 g3 Bb2 Bb7 Qe3 Na6 Rh3 Ne7 Be2 Bg7 f8B Be4+ Qdd3 Nf5 Nf3 g1Q Ne5 g2 Bg4 Ra7 Rg3 Qf2+ Nd2 g1B Rd1 Bh1 Qf1 Bh2 Qh3 Ra8 Be2 Rb8 Ne4 a3 Nf6 Rg8 Rd3 Be4 Nd5+ Ka7 b6+ Kb7 b5 Nb4+ Kb1 Nc2 Rd1 d3 Ka2 d2 Bd6 Re8 Bf8 Re7 Bg4 Rc7 Nc6 Ne1 Ne5 c2 Qg2 c1Q Qh3 c3 Kb3 Nc2 Ka4 Rc5 Kb3 Ka8 b7+ Ka7 b6+ Ka6 Ng6 Ka5 Ne5 Ra8 b8Q Rc4 Qd6 Rb8 b7 Qb1 Rh1 Qbf1 Rhg1 Q1g2 Rd1 Rb4+ Ka2 Rc8 b8R Rc6 Rb7 Rcb6 Rd7 Qgg1 Be2 Rb8 Rf3 Qg6 Rg3 Qf7 Bh5 Qg8 Bg4 Rc4 Ba1 Rb1 Bb2 Ra1+ Kb3 Ra2 Ba1 Ra4 Bb2 Rb4+
n6r/b4RR1/nk2b1pB/1P1K2pB/1p1N1Qq1/3QqrRn/1Qr3p1/1NN5 w - - 0 1 illegal: No proof kernel
2Q1B3/3brRN1/1p1PBn1b/3b2p1/1B1RN1Kp/rq2QNR1/q5p1/1k1r2n1 w - - 0 1 illegal: No proof kernel
1qR3Rb/qNB2b1p/1N3pp1/4PK1B/3pn3/1r6/3Rn1BN/qrkr2QQ w - - 0 1 illegal: No possible last move, all moves rejected
4Qn1R/B1NQ2pR/p2b3r/1n3Nk1/1Qrpp3/K2bqP1B/2R2qr1/Bb6 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 b4 Kg6 h4 d5 c4 e5 Kc2 g3 Kb2 e3 b6 d3 b5 e2 h5+ Kf5 c5 e1R c6 e4 h6 d2 c7 a6 f3 g2 b7 Be6 c8Q Rh7 b6 Nd7 b8B Qh4 b7 Bd6 Na3 Kg5 Ra2 Re2 Nb5 Nf8 Qe8 Nf6 Ba7 Qf2 Nc7 Rc8 b8Q d4 Qda4 Bh3 Qbb4 Nd5 Qad7 Nc3 Ka3 Rh8 Bb2 d1B h7 Bc2 Ba1 Bb1 Rc2 Qe3 Na8 Rc4 Nc7 Rd2 Ne2 g1Q Ng3 Rg2 Rh2 Be6 Nf5 Qgf2 Qdc8 Bd7 Rh3 Bb5 Qcd7 Rc6 Rh4 Bd3 Rh1 Rg8 h8R Rc4 R8h7 Rh8 R1h2 Rg3 Bh3 Rg2 Rh4 Rh6 Rh1 Re6 Rh8 Rf6 Bg4 Rg6 R1h7 Rh6 Bh3 Nb5+
r4k1q/nRRnp3/1BQN1r2/RBB1n1P1/4Kb1Q/4r1pb/pNq2Qp1/8 w - - 0 1 illegal: No proof kernel
3kb2r/B2P1Rb1/4Q1p1/1R5B/Bq1npN2/1Q2prpb/Rqn3Nn/3NK3 w - - 0 1 illegal: No possible last move
2R4n/1N1pNqpq/2Q2r1B/3pnn2/1K1bQ1B1/1RpPB1b1/1r1N1q1R/4k3 w - - 0 1 illegal: No proof kernel
1BK3q1/p7/2pnBbrp/N1pNR3/nRqb1PrQ/1Q5b/3B4/R2Nq2k w - - 0 1 legal: proof: e4 b5 c4 g5 a4 f5 axb5 fxe4 h4 gxh4 c5 d6 Ra5 dxc5 Ra2 Nd7 Ra1 Nb8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 b4 h3 d4 e6 g4 h2 b6 c6 b7 h6 g5 e3 g6 e2 b5 e1B b6 Bg7 Ne2 Na6 b8B Bd7 b7 Bc3 Na3 Nc7 Nc4 Bf6 g7 Ne8 Bh3 Ne7 g8N Nc8 Bd2 Nb6 Re1 h1Q Qb3 Qf1 Kg4 Ke4 f4 Qc8 d5 Bcd4 d6 Na4 Ne7 Rh7 Na5 e5+ Nf5 Be6 d7 Re7 d8Q Rg7+ Kh5 Bd7 Ne3 Kf3 Nc3 e4 Ned5 e3 Nd1 Rg6 Be6 Kg2 Qe7 e2 Qd8 Bg5 Kg4 Bgf6+ Kf5 Kg1 Bd6 Kh1 b8R Rg4 Qe7 Qd8 Rb4 Rc8 Bb8 Rc7 Qf8 Bc8 Qd6 Rcg7 Qe7 Rg8 Bd7 R8g6 Ke6 Nc7+ Kd6 Qg8 Be6 Bd7 Bf7 Bf5 Be6 Ne8+ Kd7 R4g5 N1c3 Bh3 Kc8 Rg4 Qd8 Bfe5 Qh4 Bf6 Rec1 e1Q Nd1 Qd3 Rc3 Qde2 Re3 Qc4 Re5 Nd6+
4q2Q/BRR5/1p3Bb1/3rNnN1/bp2b3/4KPr1/1pbpQ2b/k1n1RBN1 w - - 0 1 illegal: No proof kernel
RbB1N1Kb/1br2P2/NQbB3p/1N4Qp/1pr4Q/B2q2n1/6pR/4k1bn w - - 0 1 illegal: No proof kernel
6b1/K1p1bn1n/5rn1/r3k1pQ/R1pq1p2/QnR1BP2/nN4BN/2NR2B1 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 exd4 a4 d5 axb5 dxc4 Qd2 h5 Qd1 hxg4 Kd2 Ke7 e4 Kd6 b4 f5 h4 a5 h5 g5 e5+ Ke6 f3 g3 b6 a4 h6 d3 Kc3 a3 h7 a2 b7 g2 b5 d2 b6 f4 Qb3 Qe8 Ne2 g1N Bg2 Bg7 Kb4 d1N Be3 Ra5 Nbc3 Qd8 Na4 Nb2 Nc1 Ne2 Qa3 Qd4 Rd1 Nd7 b8R Bf6 b7 Ne7 Ra8 Rd5 b8B Nf8 Ba7 Nc3 Rb8 Kf5 e6 Neg6 e7 Be6 e8N Ke5 Rd8 Rg8 h8Q Rc5 Qh5 Be7 Nf6 Nh7 Re8 Rf8 Ng4+ Kd5 Rb8 Bg8 Nh2 Ke5 Rb5 Nd3+ Ka5 Rf6 Nb2 Ke6 Ka6 Nde5 Rb7 Nf7 Rb3 Ke5+ Bb6 Nd8 Ka7 Nf7 Rb1 a1N Rb4 Ngf8 Ra4 Ng6 Rd3 Na2 Rc3 Nb3 Bg1 Rb5 Bc5 Qd3 Bce3 Rc5 Ne2 Qd5 Rd1 Qd4 Nc1 Ra5+
1Knn4/5qbr/BbQb2Rp/r4kpB/3R2pQ/1p1RnNb1/1N3B1P/4Q3 w - - 0 1 illegal: No possible last move, all moves rejected
R2n1Q2/1Rq1NB2/1P1N2N1/Qbb2B1b/R1r1K1p1/p2rb3/2r1p1np/3kB3 w - - 0 1 illegal: No proof kernel
n1bn1B2/NN2b3/kpBR1Qp1/q3R1P1/2b3r1/3pB1br/R1r2pQ1/2K1Q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 fxe5 c5 g5 cxd4 Qd2 Na6 Qf4 Nb8 Qg4 hxg4 Kd1 f5 e4 d5 h4 Kd7 a4 Kc7 c4 Kb6 c5+ Ka7 c6 b3 a5 b6 c7 d3 a6 d2 h5 d4 h6 g6 h7 g3 e6 f4 e7 g2 e8Q f3 e5 b2 e6 f2 e7 Qd7 Nf3 g1B Nc3 b1R Bg2 Qh3 Ra2 Nh6 Na4 Nf5 Nc5 Nc6 Nb7 Rb5 Ne5 Nd8 Bc6 Qa3 Qf7 Qc5 e8R Be7 Qf6 Ng7 Rh3 Ra5 Rd3 Ra4 Ba3 Bh2 Bb4 Be6 c8Q Bc4 Qce6 Rc8 Kc2 d1B+ Kc1 Bg3 Ba3 Rf8 h8B Bg4 Bb4 Ra3 Bd2 Qa5 Be3 Nh5 Rd1 Nf4 Bg7 Nd5 Rd3 Rh8 Bf8 Ra4 Rdd2 Rh3 Rd1 Kb8 a7+ Kc7 a8Q Bf5 Qa6 Kb8 Qb5 Nc7 Qbd5 Ka7 Qg2 Na8 Rdd2 Ka6 Rd1 Bd6 Qee7 Bc7 Qb4 Bd6 Qe1 Rc7 Rdd2 Bc8 Re6 Bb4 Rd6 d3 Re2 Bf4 Be4 Bg3 Nc6 Bc5 Na7 Bb4 Bc6 Bc5 Re6 Be7 Re5 B4e6 Rec2 Rg4 Rcc5 Bc4 Re6 Rd7 Rce5 Rdd4 Rd6 Rde4 Bd4 Re2 Be3 Rc2+
n3RQNb/r3RPQ1/bnpN2B1/p2p2R1/3N1K2/6B1/nrqp4/3Qrnk1 w - - 0 1 illegal: No proof kernel
k3Nn2/1R2pb1r/P1rr1B2/2N4n/B1q1p2Q/1B1Nb1R1/4pprK/3R1bQ1 w - - 0 1 illegal: No possible last move
1R2Rnkr/1K1P3n/1NQ2Bq1/bbbb2p1/6p1/1BpR2rQ/N4n1p/4N1Q1 w - - 0 1 illegal: No proof kernel
4bBQb/3p2p1/3pNR1b/1r4RN/3RB1nN/Pn5r/Bp2r1rk/1q1Q1K2 w - - 0 1 illegal: Other
5rQr/N1PR4/7N/p4p2/N2Kb2k/BrRQp1nB/1r1pnbQn/5B1q w - - 0 1 illegal: No proof kernel
1rR5/1bp2R1r/1n1r1p2/NBp5/1qr3N1/QQ3Np1/1P2qb1K/BQR1nk2 w - - 0 1 illegal: Other
4r3/p1pp1BQr/1k1B1Nb1/2R2r1n/RqB2p2/2nNP2r/q2b1Q1R/6KQ w - - 0 1 illegal: No proof kernel
3Q1R1n/2p1p3/1RB2r2/b2qr2K/nN1r4/r1n1p2p/QBNQN1kP/r3B3 w - - 0 1 illegal: No possible last move, all moves rejected
1q1Q4/p3p1q1/2BpqBb1/1N4B1/RQp2rNq/R3bqk1/1nK1Pr2/R5N1 w - - 0 1 illegal: No proof kernel
6n1/B3R1qp/p1Qrb3/1NN1np2/QKpR1bn1/n4qN1/2q1RP1B/1k1B4 w - - 0 1 legal: proof: c4 g5 e4 d5 d4 dxc4 d5 a6 h3 Ra7 h4 gxh4 a3 b5 a4 bxa4 d6 Rb7 Nc3 Rb5 Nb1 Rd5 exd5 Bg7 Nh3 Bh6 Ng1 Bf8 Kd2 Kd7 Kc3 f5 b4 c5 g4 e5 b5 e4 g5 e3 g6 a3 g7 a2 b6 e2 b7 e1N Bg5 h3 Be3 h2 Bh3 Qf6+ Bd4 Nd3 Qa4+ Nc6 b8B Ne5 Na3 Ng4 Nb5 Nce5 Re1 a1N Ne2 Nc2 Ng3 Na3 Re2 Be7 Rf1 h1Q Rfe1 Qf3+ Be3 Qf8 Bf1 Bg5 Bg2 N8f6 g8Q Bf4 Qg6 Qg7 Bh3 Rd8 Ba7 Nh2 Bg4 Ng8 Bh5 Nhg4 Qf6 Rf8 Qh6 Rf6 Bb8 Kd8 d7 Ke7 d8N Be6 d6+ Kd7 Nb7 Kc6 d7 Kd5 Bd6 Rg6 d8R Rf6 Kb2 c3+ Kb3 c4+ Kb4 c2 Ba7 c1Q Nc5 Qc2 Rd7 Rf8 Re7 Rd8 Re4 Rd7 R1e2 Rd8 Bdb8 Rd6 Rd4+ Kc6 Nd3 Rd8 Nf1 Ne3 Bg6 Qh1 Qh2 Nf7 Ka5 Bg5 Bh5 Qd5 Be5 Rd6 Re1 Qg2 Bg3 Ne5 Qh1 Bf4 Bd1 N3g4 Bh2 Qe4 Re2 Qg2 Rde4 Kd5 Kb4 Qg3 Nc5 Qh3 Ng3 Qg2 R4e3 Qge4 Nc7+ Kd4 Qg2 Qed3 Qgc6 Qe4 Ka5 Qd5 Re4+ Kc3 Rd4 Kb2 Kb4 Qf3 Nb5 Kb1
2Q1r2q/2pbq1Bp/2r1QR2/3nQp1N/KN2q3/1B2R1R1/1b1p1PN1/2r2k1q w - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 Rh3 a5 Rh1 axb4 c3 gxh4 Qb3 b5 Qc2 b3 Qd1 Nc6 c4 b4 Nc3 Na7 Nb1 Nb5 cxb5 Qe7 Ba3 Qg5 Bc1 Qd8 Kd2 Ke7 e4 Ke6 a4 Ke5 g4 Kf4 g5 d5 g6 f5 b6 d3 a5 b2 e5 h3 g7 h2 e6 b3 Kc3+ d2 b7 Ne7 Kb4 d4 b8Q d3 g8R Nc6+ Ka4 Bb7 a6 Ra7 e7 Qd6 e8N Qe7 Nh3+ Ke4 Qe1+ Kf3 Qe5 d1Q Nc3 b1Q Ng7 d2 Na2 Qe4+ Nb4 Qde2 Qe8 b2 Nh5 b1R N3f4 Bc8 Bb2 Bg7 Ng2 Rc1 Ra3+ Q2d3 Bc3 Qdd8 Bc4 Bd7 Bb3 Ke2 Bd4 Rb7 a7 Rb6 a8Q Bf6 Rg1 h1Q Rg3 Bg7 Qf7 Re8 Qc8 Bh8 Qfe6 Bf6 Nh4 Bh8 R1g2 Kf1 Rg6 Bg7 R2g3 Bh8 Ng2 Bf6 Nd5 Bg7 Rf6 Nb4+ Ka5 Rbc6 Ka4 Nd3 Nb4 Nf4 Bd1 Nd5 Rae3 Qf7 Bb3 Qf8 Bc5 Qh8 Bf8 Qe7 Rd3 Bh6 Bg7 Be3 Rc3 Bd4 Rce3 Bb2
Q2b3n/RBp2p2/2p1RN2/Bqrp1R1K/1r1b2Bn/N2P2k1/3Q2rp/3Q3b w - - 0 1 legal: proof: b4 e5 f4 exf4 c4 g5 a4 Na6 h4 gxh4 b5 Nh6 c5 Qg5 c6 bxc6 b6 Qb5 axb5 Nb8 Qc2 Ng8 Qb3 Bd6 Qd1 Bf8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 e4 a5 b7 f3 b6 h3 Qe1 a4 Ba6 a3 Ne2 a2 Nf4 f2 Nh5 f1Q Nf6 Ne7 Qd1 Ng6 g3 Qd3 Re1 h5+ Kg5 h4 g4 Qd5 d3 Rg8 Kh5 Nh8 g5 Be7 g6 Bd8 Be3 d6 Bd2 Nd7 b8R Nf8 Rb7 Be6 Bb4 Kf4+ e5 h2 Rb8 Bf5 e6 h3 Re2 Rg7 Bc8 Ra4 e7 Ra5 b7 Kf3 e8Q Be4+ Qe5 Rg8 g7 Nfg6 Qg5 Qe5 Re3+ Kf2 Re1 Nh4 Bd2 Qb2 Ra8 Bd5 Re6 Be4 b8Q h1R Qe1+ Kf3 Bb7 h2 Ra7 d5 Qa8 Qe5 Na3 Rc5 Ba5 Qb2 Qgd2 Qb5 Rc1 a1B Qg1 Rf8 g8B Bd4 Bh7 Rg8 Bf5 Rg3 Qge1 Rgg1 Qee2+ Kg3 Bg4 Bf3 Ra1 Rb1 Qf1 Rb4 Rae1 Bg2 R1e5 Rg1 Rf5 Bh1 Qfd1 Rg2
1b1r1q2/2k1Nn2/5pRp/4q1R1/PK3B1p/2np1Qp1/BQ1nN3/R1NbrB2 w - - 0 1 illegal: No proof kernel
2Q1B3/3K1pn1/2RB3Q/rp2q1pN/r1p4B/Qp2k1n1/P1qR1qb1/1R2b2N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 d4 Kf6 h4 Kf5 e4+ Kg6 e5 Kf5 e6 Ke4 d6 c5 d7 b6 d5 g6 e7 f3 Kg3 f2 e8Q+ Ne7 h5 b3 d6 Qc7 d8B Ra6 h6 Qd7 h7 Qc6 d7 Ra8 Ba3 Ke3 Qd6 Rg8 h8Q Ra4 Nh3 Bb7 Nf4 Na6 Bb5 f1Q Nh5 Qe2 Rc1 Nc7 Nd2 Ne6 Rab1 Ng7 Ne4 Qb2 Kh4 g3 Kg5 g2 Qh6 g1Q+ Neg3 Qgf2 Nh1 Qbc2 Bb4 Q6e4 Bc6 Nef5 Kf6+ Qf4 Be7 b5 d8R g5 Be1 Qeg2 Bh4 Qgf2 Rd7 Q4h2 Qc8 Ng3+ Ke5 Ra5 Rd8 Ba8 Be8 Bg2 Qda6 Rh8 Rd2 Rg8 Kd6 c4 Kd7 Ra4 Rf1 Ra5 Ba3 Bb4 Rfd1 Ra4 Rd6 Be1 R1d2 Rh8 Rc6 Ra5 Bd6 Ra4 Qg6 Rh6 Qh7 Re6 Qh6 Re7+ Kd8 Ra7 Qa5 Ra8 Kd7 Ra6 Qb4 R6a5 Qa3 Nf1 Ke7 Qe5+ Kd7 Ng3
k3nR2/r3pN1K/qnp3Q1/1bPB3p/1Q2pNR1/qQ2Bb1r/3p4/1b2NR2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 e5 gxh4 e6 Bg7 d4 c6 d5 Be5 d6 fxe6 Ne2 Bf4 Ng1 e5 Ba6 e4 Bf1 Be3 Rh2 Bb6 Rh1 Bc7 dxc7 Kf7 Ke2 Kf8 Ke1 Ke8 Ke2 b5 Ke3 d5 Kf4 Kd7 Kg5 h5 Kg6 h3 c4 h2 a4 b3 f4 b2 g4 b4 f5 b3 f6 d4 c5 d3 f7 Nf6 f8R Ne8 g5 Rg8+ Kh7 Ng7 g6 Qe8 a5 Ne6 g7 Bb7 c8N Kc7 a6 Ra7 Nd2 b1B Ne2 b2 Nf3 Nd7 Nd6 Kb8 Be3 d2 Ne1 Ka8 Nf4 Nc7 Qb3 Nb6 Nf7 Qc8 Rg1 h1B Rg4 Ne8 Bc4 Bf3 Qb4 Qd8 Bb3 Qd3 Bd5 Qa3 Qb3 Bc2 Rc1 b1Q Rd1 Qba1 Rc1 Bc8 Qb4 Rd7 a7 Ba6 Qb3 Bb5 Rd1 Bb1 Qb4 Kb7 a8Q+ Kc7 Qaa5 Kb8 Qb3 Ra7 Qab4 Kb7 Nc2 Ka8 Rf1 Qa6 Ne1 Q1a3 Kg6 Rh8 g8Q Rh7 Qg7 Rh8 Qf6 Rg8+ Kh7 Rg5 Qg7 Rf5 Qg6 Rg5 Rh4 Rg3 Rg4 Rh3
bNn2qr1/1N2pRp1/2K1kb1R/2B3q1/1RPp4/1q1B2pp/2n4N/1r1Q2QB w - - 0 1 illegal: No proof kernel forced: wxDB
2n3kq/1ppNBp2/n2R3R/N4p2/K1r1b3/1Q3nPQ/pb1N1R2/1n1BBr2 w - - 0 1 illegal: No proof kernel
1Rnq1b1k/2B3rr/NRp2Q1B/rqNb1q1p/3N4/3p3Q/1pBP1Qp1/7K w - - 0 1 illegal: No possible last move, all moves rejected
bB1NBRqN/1p5R/1Q2Q2r/pPRN1b2/nbp2B2/k3bK2/bp3p2/1r6 w - - 0 1 illegal: Other
2Q2N2/r2pr2q/5BRp/4np2/K2R4/BpNQ1nRP/Bpb2k2/Q3rrr1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 g5 cxd4 Bh3 e6 Bg2 Be7 Bf1 Bf6 gxf6 e5 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kd2 Kf7 e4 Ke6 a4 Ke5 c4 g5 Kc2 b5 Kb3 f3 c5 d3 h3 Kd4 f7 g4 f8B d2 e5 Ke3 a5 h6 c6 f2 e6 g3 e7 g2 e8R+ Ne7 c7 Rg8 a6 Rg5 a7 Ba6 c8Q Rg7 Ba3 Nc6 Nf3 g1R Nd4 Ne5 Ne6 N7c6 Be7 Nf3 Rg8 Nce5 Bc4 f1R Bf6 Qe7 Nf8 Kf2 Nc3 Bb7 Qb1 d1R Qd3 Rde1 Rd1 Be4 Bd5 Rh7 Rg3 Qg7 Bf7 Qg6 Bd5 Re7 Bg8 Qh7 Bd5 Rb8 a8Q Rb7 Bg8 Ra7 Rg6 Rg2 Rg1 Rg5 Rg3 Rg4 Qdc4 Bb1 Rd4 Bc2+ Kb2 Rg5 Qd3 Rg4 Ba2 b3 Nd5 Rg5 Kc3 b2 Kb4 Rg4 Nc3 Rg5 Kc5 b4 Kb5 Rc7 Qaa6 b3 Ka4 Rg4 Qd1 Ra7 Qa1 Rb7 Qd3 Ra7+ Kb4 Rg1 Kb5 Ref1 Kb4 Re4 Kb5 Ree1 Kb4 Rc7 Ka4 Ra7+
3nr3/ppp2K2/B1Np1n2/1NB3p1/QP5q/n1RR1R1q/k1b2Q2/1Nr1nQ2 w - - 0 1 illegal: No proof kernel
4b3/2N2Q2/2R2p1b/pRK2kB1/bB1Qnnp1/N2RppP1/B7/b1Nrr2n w - - 0 1 illegal: No proof kernel
2k2B2/1pNbB3/3p1n2/2RrrQNp/pN3Q2/1P1RKB1b/1Qb1np1b/6n1 w - - 0 1 illegal: No proof kernel
rB1R2Q1/2Np4/p1p1pR2/K1B2p2/1br1Bn1Q/kqP1n1Nb/7p/1Qb2R2 w - - 0 1 illegal: No possible last move
1B3NQ1/1nQBknQN/Rpr5/p2p4/pb3p1R/p4p2/KP2b2B/R1b4r w - - 0 1 illegal: Other
3Nnk1B/1r1R2R1/5B1b/1b3nNq/q2pp3/2Q2Rq1/P1RNb3/n4R1K w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d3 h5 d4 cxd4 gxh5 b5 c4 b3 Bg2 b4 Be4 Ra5 Bc2 Rb5 cxb5 bxc2 Kf1 e5 Kg2 d5 h4 g5 f4 g4 f6 g3 h6 d3 h5 b3 f7+ Ke7 f5 e4 h7 d4 b6 b2 b7 d2 f6+ Ke6 h6 Qe7 Nf3 Nd7 b8R Qa3 Rg1 Ba6 Qe1 d1Q Kh1 Ne7 Rd8 Nf5 Nbd2 b1B Ng5+ Kd6 Qe3 Qa4 Qc3 Be2 Rf1 Rg8 h8R Rg7 h7 Bb5 Rg8 g2+ Kg1 Qe2 h8B Qh5 Rf3 Rh7 Rg7 Be2 Rc8 Bb5 Rc5 Be2 Ba3 c1N Bb4 Nb3 Ba3 Be7 f8R Bbd3 f7 Nf6 Raf1 Bb5 Rfc8 Bd8 f8N Ne8 R8c7 Na1 Nfe6 Be7 Nd8 Bf8 Rg8 Bh6 Rgg7 Qa5 Rb7 Qa4 Rc6+ Ke5 Rc4 Kf6 Rgd7+ Kg6 Be7 Rf7 Bef6 Rg7 Nge6 Kh7 Rc5 Kg8 Ng5 Rh7 Rg7+ Kf8 Rbd7 Nh4 Kh2 g1Q+ Kh3 Qe3 Kh2 Qf4+ Kh1 Qg3 Rg6 Rf7 Rg7 Re7 Qd3 Rf7 Rc2 Re7 Qc3 Rf7 Rd5 Rb7 Rdd7 Nf5+
n2k2N1/Nr2n3/3PQ1rB/1B1p1Rq1/3Kn3/4rbR1/1R1p1R2/rB1q1R2 w - - 0 1 legal: proof: e4 g5 h4 gxh4 b4 b5 d4 f5 exf5 d5 c4 a5 c5 axb4 a4 c6 axb5 Bh6 Qb3 Bf4 Qd1 Bd6 cxd6 c5 Ra5 cxd4 Ra7 Qd7 Ra1 Qd8 Kd2 e5 Kd3 h5 f4 b3 g4 h3 g5 h2 b6 b2 b7 h4 f6 h3 f5 Qd7 g6 Qc7 g7 Ne7 g8B Qc5 f7+ Kd8 f6 Ra6 Bh7 Rg8 Ra3 Nd7 b8R Rg6 Ne2 Nb6 Bh6 Qc1 Ng3 Qg5 Nc3 b1R Qe2 Na8 Nf5 Rb7 Nb5 Ra5 Rg1 h1N Na7 h2 Ra2 Ng3 f8R+ Kd7 f7 h1Q Rg8 Ne4 f8R Ra4 Rc2 Ra1 Qe1 Qhh5 Rf2 Qh1 Rf6 Qhh5 Rg7 Kd8 Be2 Qhg4 Rgf1 Qg1 Bd1 Q1g4 Ba4 Q4h5 Bb5 Qf3+ Kc2 d3+ Kb3 d2+ Kc2 Qfg4 Kd3 Qd1 Qe2 Nc3 Qg4 e4+ Kd4 e3 Qh3 Ng8 Ne7 e2 Qe6 e1R Rff7 Ne4 R7f5 Ngf6 Ng8 Re3 Qe5 Rc7 Rb6 Rb7 Qe6 Bd7 Ba6 Ba4 Rb2 Bc2 Bb5 Bd3 R5f3 Be2 Rg3 Bf3 Rf7 Nd7 Rf5 Ndb6 Bd3 Nc8 Bb1 Rgg7 Bg6 Ne7 Be8 Rg6 Ba4 Qh4 Bb5 Qg5
1Nq1B3/2B5/Kpb3BR/NPkp2p1/n4Rbb/8/bN4N1/1Qbqb2N w - - 0 1 legal: proof: b4 c5 f4 e5 a4 exf4 g4 h5 b5 hxg4 a5 g5 a6 Rh3 Nxh3 b6 Ng1 Nc6 d3 Rb8 d4 Rb7 axb7 cxd4 Ra2 Na5 Rxa5 a6 Ra1 a5 Kd2 Ke7 Kd3 Kd6 Kc4 f5 b8N f3 h4 a4 e4 f4 e5+ Kc7 h5 d3 e6 Kd6 e7 d2 e8B a3 h6 f2 h7 g3 h8N g2 Rh6+ Qf6 Bd3 f1B Nc3 a2 Nh3 g1B Ng6 f3 Ngf4 f2 Na4 Be7 Nb2 Bg2 Bdg6 Bc6 Ng2 Qh8 Qf1 d1Q Bf4+ Qe5 c3 Nf6 Qd3+ Nd5 Qb1 Nb4 Bh2 Nd3 Bf4 f1B Nf2 Be2 Nh1 Bf2 Bh2 Bh4 Bg3 Ke6 Bh2 Qg7 Bc7 Qg8 Kd4 d6 c4 Bg4 c5 B8d7 Kc4 Bd5+ Kd4 Qf8 c6 Nc5+ Qd3 Na4 Rc1 a1B Rc4 Qc1 Qb1 Qff1 Rb4 Ba2 Rc4 Bf6+ Ke4 Ke7 Kd5 Bc3 Bd8+ Kf8 c7 Bce1 c8N Qc2 Ne7 Bc6+ Kd4 Qc1 Bc7 d5 Ke5 Qd1 Kd6 Qf5 Re4 Qc8 Rc4 Bb7 Nec6 Ba8 Na5 Bc6 Nd3 Bac3 Nb2 Bcd2 Rf4+ Qf5 Bd8 Be3 Kc7 Bc1 Bf6 Qfc2 Be5+ Ke7 Bd6+ Ke6 Kc8 Qf5 Bc7 Qf8 Na6 Qg8 Kb8 Ke7 Ka7 Qe6 Nb8 Qc8 Bd8+ Kd6 Bc7+ Kc5 Rh5 Qd7 Rh6 Qd8 Ka6 Qc8+
4q1Nr/kq1q3r/r1B1B2r/r3KR2/2n5/bP1q1b2/B2RN1nB/3RB2Q w - - 0 1 illegal: No possible last move
R1q1R1r1/q1N1q1N1/6q1/1R1Q1n2/BBKn3n/Pq2Bb1q/B5k1/2Bq3r w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 e4 Ke7 Ke2 Kd6 Kd3 Ke5 g6 Kf4 d6 b5 g7 f5 d7 h5 e5 c5 a3 b3 e6 c4+ Kd4 c3 e7 h4 e8B b2 Bg6 b4 Bc4 b3 Be2 g2 d3+ Kg3 Bh6 h3 Bh5 f4 Qd2 c2 Bf3 c1Q Bd5 f3 Be8 h2 Nc3 b1Q Nb5 b2 Nh3 g1N Ba2 f2 Ng5 f1Q Nc7 Qe7 d8B Qfd1 Ba4 Bb7 Nge6 Bf3 Be3 Nh6 g8R Qbc2 Rg5 b1Q Rb5 Qcb3 Ng7 Kh3 Qa5 g3 Qd2 g2 Qa5 Qe8 Bdg5 Qe7 Bgf4 Qcc2 Bd6 Qc6 Bb4 Qg6 Bc1 Qb1c2 Rb1 Rg8 Re5 Qcc6 Qd5 Qce6 Rb2 Qc8 Re6 Ra7 Ra6 Rb7 Ra8 Rb6 Re2 Rd6 Kc5 Nf5 d4 Nc6 Kb5 Re6 Rb2 Re1 Re2 Qed7 Re8 Qe7 Be3 Bh5 Bc1 Nf3 Rf1 g1Q Rf2 h1Q Rb2 Qbe3 Kc4 N3h4 Qe5 Q1g3 d5 Qgh2 d6 Bf3 d7 Q1g2 Bc5 Qgg1 Rb5 Kg2 Qd5 Qh3 Bd6 Qgf2 Bb4 Qa7 Be3 Rh1 Bc1 Qb2 d8B Qed7 Bdg5 Ncd4 Bgf4 Qe7 Bfe3 Qbb3+
1B2bk2/b2q4/7N/1q2Qn1B/2nNBB2/b1nn1KRq/1N1q1RP1/b1r2B2 w - - 0 1 legal: proof: d4 a5 h4 c5 f4 cxd4 a4 b5 axb5 g5 e4 gxf4 Ra4 f5 Ra2 fxe4 Ra1 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bb7 Rh5 Ba6 Rh1 Bc8 Ke2 d5 b4 e5 c4 h5 g6 d3+ Kf2 d4 c5 f3 b6 a4 b5 a3 g7 e3+ Kg3 e2 c6 e1B+ Kh2 a2 b7 f2 Kg3 h4+ Kf3 d2 c7 e4+ Ke2 e3 b6 h3 Rh2 d3+ Kf3 e2 Qc2 d1N Qb2 d2 Qf6 Nc6 b8B Qd7 b7 Nc3 Na3 d1Q Bf4 Q1d2 Qe5+ Nge7 g8B Na5 Bh7 Nc4 Be4 Rg8 Rh1 h2 Nh3 Rg5 Rc1 a1B Rc2 Rg6 Ng5 Rc6 Nf7 Rc5 Qg7 Nf5 Qe5+ Be7 Nh6 Kf8 Ba7 Bd6 b8N Ba6 c8B Bb5 Nc6 Be7 Rg1 h1Q Nd4 Qh2 Bb8 Qh3+ Bg3 Rc7 Rh1 Bc5 Bcb7 Ba7 Ba8 Qd8 Bad5 Be8 Bf7 Qd7 Rb2 Rb7 Rc2 Rb1 Bh5 Rc1 Ra2 Qb2 Rh2 Bd2 Rh1 Bg5 Rh2 Qd2 Rb2 Be7 Rc2 Na5 Nc4 Ba3 Nb2 Nc4 Rh1 Qh2 Bf4 e1N+ Kg4 Nd3 Kf3 Qg1 Rh4 Qh2 Rg4 Qh3+ Rg3 Qe1 Na4 Qd1+ Re2 Qb3 Nb2 Qbb5 Rc2 Nd1 Be2 Nc3 Bd1 f1Q+ Rf2 Qg1 Be2 Qe1 Bf1 Qd2
2nQ4/1Bb4B/r2RBb1P/R4bpq/5K2/2R1rB1B/2qn4/2qnNrkN w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 c5 d4 cxd4 a4 g6 axb5 Qb6 Bf4 Qc7 Qd3 g5 Qg6 gxf4 g5 Na6 Qg7 Qb6 g6 Qd8 Qf6 Nb8 g7 Na6 Qh6 Nb8 Qg6 hxg6 Kf2 Ke7 Kf3 Ke6 h4 Kd5 e4+ Kc5 c4 a5 e6 d5 b6 f5 h5 a4 b7 a3 e7 a2 e8B d3 b4+ Kd4 b5 d2 h6 d1N c5 Qc7 e5 Nc6 b8R Na5 b6 Nc4 e6 Ne7 g8B Ra6 b7 Bd7 c6 Nc8 Nc3 Bd6 Rc1 a1B e7 Be6 Ne4 Nd2+ Ke2 Qa5 Rh5 Bc7 Ng3 Bb2 Bh7 f3+ Ke1 Ke3 Bf7 f4 e8B d4 Bh3 d3 Rc3 Ba1 Nh1 Bf5 Be6 Qa2 Ra8 Qc2 b8Q Rf8 B8d7 Re8 Bd5 Bb2 B7e6 Ba1 Rb3 Bf6 Rc3 Nb3 Kf1 f2 Kg2 Nd2 Nf3 f1R Ne1 Ke2 Rg5 Ke3 Rg3+ f3+ Kh2 Ke2 Ra7 f2 Bf3+ Ke3 Kg2 Re7 Rg4 Re8 Rd4 Re7 Rd6 Re8 Kg3 Re7 Bfg2 Ke2 Beg8 Re3+ Kf4 Nb2 Qb7 Rg1 B8d5 f1Q+ Nf2 Ra3 Ra6 Nb1 Bde4 d2 Qa7 d1Q Nd3 Nd2 Qd4 Bb8 c7 Ndc4 Bb7 Nd2 Rdc6 Qfe1 Ra7 Rf1 Qd8 Qdc1 Rd6 Qed1 Ne1 Ra2 Nf3 Ra1 Nh1 Ra5 Ng3+ Kf2 Ne1 Qh5 Nh1+ Kg1+ Bgf3 Nd1 Ra8 Rc5 Ra7 Rc6 Raa3 Ra6 Ra5 Ne7 c8B Bc7 Bd7 Nc8 Be6 g5+
q3k2r/BRrp1Nn1/3K2Nn/b1rB2B1/B5NP/1nb4Q/r1r2B2/6Rb w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Kd2 e5 Kd3 g5 Kc4 e4 Kd5 b3 f4 g3 h4 d3 c4 g4 c5 g2 f6 d2 b6 e3 c6 b2 c7 g3 f7+ Ke7 b7 e2 f5 e1B Na3 b1R Nb5 Nh6 Qf3 d1N Ra7 Rh7 Nh3 g1R Nd6 g2 Bb5 Na6 b8B Bg7 f8N Nc5 Nf7 Rh8 Bg5+ Ke8 Kd6 Rb2 Nf2 Bb7 c8B Nb3 Qh3 Ne3 Ng4 Be4 Rc7 Raa2 Ba4 Ba5 Ng6 Rc1 Bb7 g1R Ba7 Qa8 Bd5 Rd2 Rb7 Rc7 f6 Rga1 Nfe5 Rac1 Rf1 Bh1 Rg1 Kd8 f7+ Bf6 f8B Ke8 Bg7 R1c5 Nf7 Bfc3 Bd4 Nef5+ Ke5 Ng7 Kd6 Re2 Bf2 Rec2
B4B1N/1Kbp4/rB3nQq/3R1P1R/1BB2b1r/2rb1nnb/1k1N3b/5N2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 g5 f4 d3 h4 d2 c4 e4 b6 g3 c5 b3 b7 g4 h5 b2 h6 e3 h7 g2 c6 e2 c7 e1N Qa4 d1R+ Nd2 b1B Bd3 g3 Qb4 Bd6 Ra5 Qf8 Qe4 Ra6 Bc4 Nf3 Ra2 Nc6 b8B Bb7 c8B Bd3 Bc7 Qh6 Ba3 Rc1 Bb4 Rc3 Ne2 g1B Rh5 g2 Ng3 Bb6 Ngf1 g1B Ra5 Bh2 Rc5 Ba8 Bb7 Ncd4 Bc6 Ba5 Bb6 Ne2 Rb5 Bb8 Kc5 Ng3 Qe8 Ng1 Bh1 Bg2 Qe4 Nf3 Qc6+ Ke7 Qg6 Bh3 Bg2 Nf6 Bh1 Nd5 f6+ Ke6 f5+ Ke5 f7 Nf6 f8B Bc7 Bg2 Bb8 Ba7 Bac7 Bb6 Rg8 h8N Rg7 Qf7 Rg4 Qg6 Rh4 Ra5 Nd4 Ba8 Nf3 Kb5 Bd6 Bd8 Kd4 Bc7 Bf4 Bd8 Ra7 Kb6 Ra6+ Kb7 Bbc7 Rc5 Bb8 Bb6 Bbc7 Ba3 Rb3 Re5+ Kc3 Bab4+ Kb2 Rd5 Rc3
r1bRN3/p3R1nn/nB1N1B1K/6BR/1R1rqn2/1R3bn1/P2k4/2n1n1Q1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 g3 c5 bxc5 dxc4 Qb3 f3 Qa4+ Nc6 Qd1 Nb8 Nh3 f5 Bg2 h5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qb3 Qe7 Kc2 Bf4 gxf4 Rh6 Kc3 Qc7 Qd1 Qd8 Kc2 Rh8 h4 Kd7 d4 Kc6 Kd2 Kb5 Ke3 Kb4 f5 f1B Kf4 b5 e4 f2 c6 c3 c7 g3 f6 g2 Kg5 c2 e5 g6 d5 Bd3 e6 f1N h5 Be4 e7 Bf3 e8R Nh6 d6 Ng3 d7 Nhf5 h6 Na6 h7 Qe7 d8B Ng7 Kh6 g5 f7 g4 f8R Qe4 Ne2 g1N Re7 Nh3 Bg5 c1N Nd2 Nf4 Nd4 Kc3 Nf5 b4 Nd6 b3 Rb1 b2 Rh5 Rg8 h8B Kd3 Ra1 b1N Ne8 Nc3 Rb1 Ncd5 Rb4 Nf6 Qg1 Nh7 Nc4 Ke2 Ncd6 Kd2 Rf6 Rf8 Rfe6 Rf5 Rb3 Rd5 Re5 Rd4 Reb5 Nf1 Rb8 g3 R8b5 g2 R5b4 Bb7 c8R Ng3 Rb8 Bc8 Bc7 Ne6 Bhf6 Ng7 Qh1 g1N Bb6 Ng1e2 Qg1 Nd3 Bc7 Ne1 Bb6 Bcg4 Rc8 Nc1 Rd8 Bc8
n1q5/1b1RN2p/KbBN2qR/P3R2N/3k1nnR/5rnQ/3b1q2/1RB3r1 w - - 0 1 illegal: No possible last move
2q3b1/bPr2NN1/1RKN1n2/5rrR/2nN2n1/kB5b/q1pQ3N/n2B3R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 c5 d6 f5+ Kd5 a5 e4 h5 e5 h3 e6 h2 b3 f3 b6 c4 d7 h4 g5 f4 g6 c3 g7 f2 b7 h3 e7 c2 e8N a4 Qd3 a3 Nf3 a2 Nc3 Ra7 Qd2 Nc6 Nd6 Na5 Be2 f1N Bd1 Nc4 Kc6 Nf6 g8B Rh5 d5 Rg5 b8R+ Rb7 Rb1 a1N Ra8 Nfe3 Ra5 Qe8 Rc5 Qf7 d8N Rd7 Ne6 Neg4 Ng7 Qe8 Rb2 Ka3 b4 Qd8 b5 Be7 Re1 h1Q b6 h2 b7 Qg1 Be6 h1B Nh2 f3 Ne2 f2 Nd4 f1R Bg8 Rff5 Rb6+ Ka2 Rf1 Bg2 Ba3 Bh3 Bb2 Qe3 Rh1 Qa3 Bc3 Qb2 Ba5 Ka3 Rbb5 Rf2 N6f5 Nce3 d6 Rc7+ Kb6 Rh5 d7 Qa2 Bb3 Nc4+ Ka6 Rf4 Re5 Bc5 Nd6 Ba7 Rec5 Qf8 d8N Be6 Rf5 Rf7 Bc7 Rd7 Rb6 Bg8 N8f7 Qc8 Kb5 Rf3 Kc6 Rf4 Rg5 Rf5 Rg6 Rhg5 Rh6 Bf1 Rh8 Bh3 Rh5 Rxc7#
2N4k/3r1b1q/p1n2n2/2N1RBq1/bNR1NN2/1P2Rr1n/1B2r3/1r1n1Q1K w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 e4 Kf8 c4 Kg7 c5 d5 c6 h5 b6 f5 c7 h4 e5 f4 g6 d3 b7 d2+ Ke2 h3 e6 g2 Kf2 a6 e7 f3 e8R g3+ Ke3 f2 Kf3 d4 Ne2 g1R Ra4 g2 Nbc3 h2 Nd5 d3 Rc4 Be6 Nb4 Ra7 c8N Nc6 b8N Qg5 Nd7 Bf7 Nc5 Rd7 Re5 Nf6 Qe1 Kg8 g7 Rh4 Qd1 Rhd4 Qe1 Re4 Qd1 Kh7 Qe1 d1B g8N Ne8 Nf6+ Kh8 Be3 d2 Bd4 Ba4 b3 d1N Bb2 Nc3 Nh5 Nf6 Neg3 Ncd5 Qa1 Ne3 Bd3 Re1 Rf1 h1Q Rg1 Rc1 Re1 Rc3 Qd1 Qhh4 Qe2 f1R+ Qf2 Qh2 Re2 Ra1 Qf1 Rb1 Kf2 Qhh4 Kg1 Nd1 Re1 Re3 Bf5 Rf3 R1e3 Rc2 Nge4 Re2 Ng7 Qhh6 Nh5 Qh7 Kh2 g1N+ Kh1 Nh3 Nf4 Qgg6 Ng2 Qgg8 Nf4 Qg5
b3n2B/Nq1r1q2/4nN2/7P/Nr1R1N2/2q2QNr/1nRRpK1k/1n4nB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h3 cxd4 h4 g5 g3 gxh4 Rh3 h5 Rh2 h3 Rh1 h2 Bh6 h4 Qe2 h3 Qd1 Bg7 Bf4 Bf6 Bc1 Bh4 gxh4 Rh6 Bd2 Rh5 Bc1 Rh8 b4 Kf7 c4 Kf6 f4 Kf5 c5 a5 h5 d5 c6 e5 c7 d3 b6 a4 b7 d4 b5 d2+ Ke2 Kg4 b6 Kg3 f5 d3+ Ke3 a3 f6 a2 f7 Qe8 f8N Nc6 b8N Nf6 b7 Nd8 Ba3 Ra7 Be2 Qf7 Na6 Ne6 b8N Ne8 Nf3 Bb7 c8R Ba8 Rc3 Rd7 Re1 h1R Bb2 h2 Nc7 Rg8 Bf1 Rg4 Nc6 Rh4 Na7 Rg4 Qb3 d1N+ Kd2 Rh4 Re2 e3+ Ke1 e4 Rcc2 Nc3 Red2 e2 Nd5 Rh3 Nh4 Rg1 Qb6 h1Q Nfg6 Kh2 Nf6 Rg4 Kf2 e1N Qe3 Nf3 Nf5 Ng1 Ng3 Rf4+ Qf3 e3+ Ke1+ e2 Bg2 Rb4 Nf4 Bd5 Kf2 Ba8 Na3 Nb1 N3b5 Nd6 Nc3 Ne8 Rd1 d2 Na4 Na3 Rab1 a1Q Be5 Qc3 Rbb2 Rb5 Rb4 Nb1 Rd4 Rb3 N6d5 Rb5 Bh8 Rb4 Nf6 Qa1 Qd3 Qc3 Bb7 Qd5 Qf5 Qb5 Bh1 Qb8 Qg4 Qb7 Qf3 Rd8 Ra2 Rd7 Rc1 Qb2 Rc3 Qc2 Rcd3 Qcc6 Rc2 d1N+ Ke1 Qcc8 Rdd2 Nb2 Kf2 Qc3
2rb1Bb1/b3n3/6RK/2NkPQNp/1r3qR1/2B1Rq2/1qrBr2B/1q2B3 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 f5 axb5 fxg4 c4 dxc4 d5 e6 d6 g5 h3 g3 Bg2 Nc6 Bf3 Ne5 Bd5 exd5 h4 g4 Nc3 Nf7 Nb1 Ng5 hxg5 Bf5 Ra4 Be6 Ra1 Bc8 Kd2 Kd7 Ke3 Ke6 Kf4 c5 e4 h5 b4 a5 b6 g2 b7 c3 b8B c2 g6 c4 g7 g3 b5 d4 b6 c3 d7 d3 b7 d2 Qf1 d1R Rh4 a4 Nf3 g1B Be5 a3 b8B a2 Nbd2 g2 Rg4 Be7 Nb3 Re1 Bd2 Re2 Re1 c1Q Bf6 a1Q Kg5 c2 Bh2 Qb6 d8B Qb7 Ba5 Rb8 e5 Qa8 Bc3 Rb4 Nc5+ Kd5 Kg6 Q1a4 Ng5 Be6 f4 Bd8 f5 Qb2 Be7 c1Q f6 Qcb1+ Qf5 Bf2 f7 g1R f8B Rg2 Bd6 Be3 Bc7 Rgf2 Ba5 Ne7+ Kf6 Rg2 g8R Bf2 Rg6 Bg8 Kg7 Bd4 Nb7 Ba7 Nc5 Q8c6 Bc1 Rc2 Re3 Rge2 B1d2 Qaa3 Na6 Qc4 Nc5 Qf4 Be1 Bh7 Kh6 Rg8 Bcd2 Rh8 Re4 Qaf3 Re3 Rg8 Bg7 Re8 Bf8 Bg8 Bc3 Bc7 Bed2 Rc8 Be1 Bd8 Bcd2 Re4 Bac3 Rb4
2k1B1n1/R3Q3/2rn1n2/p5qr/rBR1NR2/RbRrNP1n/1B4qq/4K3 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 a5 fxe4 a6 Kf7 axb7 Ke8 h4 g5 b4 gxh4 b5 e6 b6 a6 Be2 Bd6 Bb5 Nc6 Bd3 Bb8 Bf1 Ba7 bxa7 Nb8 g4 h5 c4 d5 c5 Kd7 f3 h3 g5 d3 g6 e3 g7 h2 Nc3 e5 Nh3 e2 Rg1 h1Q Kd2 e1N Bg2 e4 Ra3 h4 Ra2 d4 Bb2 e3+ Kc1 d2+ Kb1 d3 Qc2 d1N Kc1 e2 Kd2 Qg5+ Nf4 h3 Bf1 h2 Rg4 Ng2 Ne4 e1R Ra3 Nde3 Nd5 Rc1 Rf4 Nf5 Ne3 Nd6 c6+ Kc7 Qb1 Nd7 b8B+ Kd8 Qa1 Ndf6 c7+ Kd7 Rc3 Rh5 Qa3 Rc2+ Kd1 d2 Qb4 Bb7 c8R Bd5 R8c4 Kd8 Bc7+ Kc8 Qc5 Be6 Qe5 Bf7 Qe7 Qg1 Ra3 h1Q Rcc3 Qhh2 Ba5+ Bc4 Bb4 Qf2 Bd3 Qfg3 Ke2 Q3g4 Kf2 d1R+ Be2 Rd3 Kf1 Rb8 a8R a5 Ra7 Rb6 Kf2 Rc6 Kf1 Bb3 Kf2 Nh4+ Ke1 Ng6 Bf1 Qgg2 Be2 Rd4 Bb5 Rcd2 Rc4 R2d3 Rc3 Rcc4 Be8 Rc6 Rc4 Ne5 Rc3 Neg4 Rc4 Nf2 Rc3 Nh6 g8R Nh3 Rg7 Nhg8 Rf7 Nd7 R7f5 Ndf6 Rfc5 Rd2 R5c4 R4d3 Ba1 Ra2 Bb2 Bd1 Rab3 Ra4 Ra3 Bb3
1N4B1/kr1r2b1/BN4bp/R3q1q1/3bNQr1/R5N1/NP1R2Kb/2r2qn1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h4 Qb6 g4 Qc7 f5 Qd6 Bf4 gxf4 g5 Qb6 h5 Qd8 Ke2 Nc6 Kd2 Ne5 Ke1 Ng6 hxg6 Bb7 Ke2 Ba6 Ke1 Bc8 Kf2 e5 c4 a5 c5 d5 f6 Kd7 b6 Kc6 b7 a4 b8R a3 f7 f3 g7 a2 g6 h6 Bc4 e3+ Kf1 f2 Rh4 e4 Qd3 e2+ Kg2 e1B Qe2 f1Q+ Kh1 d3 Ba6 d4 Kh2 d2 Nc3 d1R Rh3 e3 Kh1 d3 Rh5 d2 Rd5 Qg5 Rb5 Rh7 Rd8 Bf5 Qg4 e2 Rc1 a1R Qf4 Ne7 g8N Bg3 g7 e1B Nf6 Ng6 g8B Bg7 f8N Bef2 Na2 Bh2 Rd3 Bd4 Rcc3 Ne5 N8d7 Rac1 Ne4 Nf3 Ra3 Bg6 Rba5 Qe5 Nb8+ Kc7 c6 Kb6 c7 Ka7 Nd7 Rd8 Nb8 Rd7 Qf8 Re1 Qf4 d1Q Rd2 Qfb5 Kg2 Rf1 Ne2 Rg1+ Kh3 Rg4 N2g3 Ng1+ Kg2 Qg5 R5a4 Qbe5 c8N+ Ka8 Nb6+ Ka7 Ra5 Qf1+ Kh1 Rb7 Re3 Bf6 Rf3 Rhd7 Rfa3 Qd3 Kg2 Bg7 Rd5 Qc4 Rda5 Qf1+
1r1Nn1q1/1R5R/pPRpb1k1/1B2q1N1/K2b1QR1/1R3n2/B2N3b/n1r4q w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Kd2 e5 c4 a6 Kc2 g4 Kb3 d6 h4 d3 h5 d2 f6 f3 g7 Kf7 h6 g3 c5 f2 c6 g2 b6 e4 b7 e3 h7 e2 c7 e1Q Ra4 Qe5 Qc1 d1N Nf3 g1B Nbd2 Bh3 c8R Qe1 Bb5 f1Q Ng5+ Kg6 f7 Ne3 Rc6 Nc2 Rg4 Ra7 Ka4 Na1 b4 Nf6 g8B Bg7 f8R Bh2 Rf7 Nbd7 b8R Ne5 Rfb7 Ne8 Ba2 Nf3 Qc4 Rg8 Qf4 Bd4 h8N+ Kh6 Nb1 Qe5 Nhf7+ Kg6 Nd2 Qc8 Nd8 Ra8 Rh4 Be6 Rg1 Rg7 Rgg4 Qh1 Rh3 Rg8 Rbh7 Rg7 Rb7 Rb8 Rhg3 Rc7 Rgh3 Nh4 Rb3 Nf3 Bf1 Qd7 b5 Qf7 b6 Qg8 Bb5 Rcc8 Rc1 Rc3 Rc2 Rd3 Rc8 Rc3 Rc6 Rc1
2q1nR1R/rb5p/1b1R4/3nN3/R1B2Pp1/2b2N2/nNQ1rq2/RBrK1k2 w - - 0 1 illegal: No possible last move, all moves rejected
2NB1nN1/bKr3r1/B2bQ2P/3NN1q1/p2rk2b/Rp5b/bR5N/2n2B2 w - - 0 1 illegal: No possible last move, all moves rejected
R1B5/2n1kN2/R2NN2Q/7B/1N1nN2p/pnbr4/RPb1r1nr/K1b1q3 w - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 c4 g5 h4 gxh4 d3 Ba6 cxd5 Bc8 f4 exf4 Be3 fxe3 g4 c5 e5 f5 d4 a5 g5 h5 e6 a4 b6 e2 Kd2 e1N Kc1 h3 g6 f4 g7 a3 e7 h2 b7 c4 d6 f3 d7+ Kf7 e8B+ Ke6 d5+ Kd6 Nc3 f2 Kb1 Ng2 Nh3 Nf6 g8R Qa5 d8N Ke7 Nf4 Bf5+ Ne4 c3 Nf7 Bg7 Qc1 Nc6 b8N Nd4 Na6 Rd8 Ra2 c2+ Ka1 Qe1 Nfd6 h4 Bh5 Bh7 Nb4 Ne8 Ba6 f1N Bc8 Nd2 Rf1 h1R Ne6 Rh2 Rf6 Nc7 Rh6 Rd7 Rd8 Re8 Rf6 Nb1 Qh6 c1B Nc4 Rf8 Rf5 Rh1 Ba6 Rh2 Ned2 Nf3 Ra8 Ne8 Bc8 Bc3 Re5 Bd3 Ne4 Nbd2 Rg5 Rf7 Rf5 Nc7 d6+ Ke8 Re5 Bc2 Rea5 Rd8 d7+ Ke7 R5a7 Rf5 Ra6 Re5 N4c5 Re2 Ne4 Rf8 d8N Nd4 Ncd6 Rf3 N8f7 Rfh3 N6c5 Rd3 Ne6 N2b3#
N3b2Q/np1n2r1/bNR2nb1/3K2rB/5RP1/r1RR1R2/2B4p/k1b3Nq w - - 0 1 illegal: No possible last move
1kn2K2/n1Rb2N1/Rp3B2/1rb5/R2b1bpq/1BBQR3/q4NbP/1r3R2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 d4 d5 g4 hxg4 cxd5 c5 Qb3 cxd4 Qa4+ Nd7 Qd1 Nb8 Ke2 Kd7 Kd3 Kc7 Kc4 e5 f4 g5 a4 g3 d6+ Kb6 Kd5 Ka7 f6 e4 d7 g2 Ke6 g4 Kf7 e3 f5 e2 a5 e1B a6 d3 Ra4 b6 Bd2 b3 Na3 b2 Nc2 b1B Ne3 Bc2 Nh3 g1B Bc3 d2 Bc4 Nc6 Nf2 Rh5 Bb3 Kb8 a7+ Kc7 Qb1 Be4 Qd3 d1Q Ra6 Rb8 a8R Bg2 Ra4 Qf3 R8a6 Bc5 Kg7 Qe7+ f7 Qh4 f8R Bd2 f6 Nge7 f7 Ra8 d8B+ Kb8 Re8 Na7 f8R Qe2 Rf7 Bd7 Nf5 Bf4 Kf8 Qa2 Ng7 Nec8+ Be7 Bd4 Bf6 Rg5 Re3 Rb5 Ne4 Bf2 Rf1 Bg1 Re2 Bge3 Nf2 Bc5+ Re7 Bed4 Re3 Qa3 Qd2 Be8 R6a5 Nc6 Rc4 Ra6 Qe2 N6a7 Qd3 Qb2 Raa1 Qe2 Rb4 Ra2 Rc4 Rb2 Ra6 Rb1 Rb4 Qa2 Rba4 Nd6 Rc7 Bd7 Bd8 Ndc8+ Be7 Nd6 Bf6 Ndc8+
3nQB2/4BB1R/3B1N2/3bqk2/4r2p/q2pbr2/NrPrN3/2BnRKn1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 f4 Kf7 g4 Kf6 b6 e5 b7 d5 Nd2 h5 Be2 h3 Ra7 b3 Ndf3 h2 Ba3 e4 Qd3 e3 Qc4 b2 Ne5 b1R+ Bc1 d3 Bd1 e2 Ra5 d2+ Kf2 e1R Nc6 h4 Ne2 d4 Qb5 Qe7 Nb4 Nh6 Qe8 Rb2 Ra7 Nd7 b8B Nf7 Na2 Qa3 Bd6 Bb7 Rg1 h1Q g5+ Kg7 f6+ Kg6 Be7 Kf5 g6 Bh6 g7 Bd5 g8N Nd8 f7 Ne5 f8B Qe4 Nf6 Nf3 Bd6 d3 Rh7 Qe5 Bfe7 Rf8 Rh1 Rab8 Kg2 Rg1+ Kf2 Rg7 Re1 Ng1 Kf1 Rc8 Nec3 Rc6 Bh5 d1N Ne2 Rc4 Bf7 Rg2 Ne4 Kg4 f5 Be3 f6 Ra4 Bg6 Rc4 f7 Rh2 Bh5+ Kf5 Nf6 Rd4 Nb4 Re4 Na2 Rg8 f8B Rg3 Bf7 Rgh3 Nec3 Rd2 Ne2 Rf3+
3qr3/Q1N2k1b/NRNPpnR1/1r1B4/1pR3Nn/b7/nK3nq1/2NB3q w - - 0 1 illegal: No possible last move
1N1RK3/P7/1k4n1/brb1NqQN/4p1rr/RB4pq/N2Bqqn1/1RN5 w - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 Qa4 fxe4 Qd1 d5 cxd5 h5 d3 c5 Bg5 c4 Be3 c3 Bc1 Bd7 g3 Bb5 g4 Bc4 dxc4 hxg4 Ke2 Kd7 Ke3 Kc7 Kf4 g5+ Ke5 b5 Ke6 b3 Kf7 e5 a4 b2 h4 b4 f4 c2 a5 e3 h5 g3 f5 e2 h6 e1Q c5 e4 d6+ Kb7 a6+ Kc6 d7 g2 f6 b3 a7 g4 h7 g3 Bc4 Na6 Qh5 Qf2 Bd2 c1Q Ra3 Nb4 Nc3 b1R Nge2 g1B Qg5 b2 Na2 Nd5 Bb3 Qa5 d8R Qc2 Ke8 Ne3 f7 Ng2 Nec1 Kc7 c6 Kb6 c7 Bc5 f8N Ne7 Rh2 Rg8 h8N Ng6 Nf7 Rh8 Rh3 Rh4 Ne5 Qc4 Nh7 Qce2 Nf6 Bb4 Ned3 Qaf5 Nh5 Ba5 Rh1 Qh3 Ne5 Qff5 Be6 Bc5 Bb3 Rg4 Rg1 Rb8 Rh1 Ra1 Re1 b1Q Rf1 Qb2 c8N+ Kc7 Rg1 Rb5 Ne7 Kb6 N7c6 Qd4 Nb8 Qdf2 Ncd3 Rc1 Rh1 Rc2 Rb1 Rc1 Bb4 Rd1 Ndc1 Rd7 Bd2 Rh7 Ng7 Rhh4 Nh5 Q2f4 Rd3 Qfe3 Rd8 Q3f2
b2N1q2/1B4b1/b1N1PNNQ/n2Rp3/BKr2n1b/r5p1/6R1/k1n1n1NB w - - 0 1 legal: proof: d4 h5 g4 hxg4 a4 b5 axb5 Rh6 d5 Rh8 d6 cxd6 f4 e5 fxe5 Ke7 e6 Kf6 e7 Ke6 e4 Rh5 e5 Rh8 Bf4 Kf5 e6 Kf6 Be5+ dxe5 Kd2 d5 Kc3 a5 e8B g5 h4 g3 b4 d4+ Kb3 d3 c4 a4+ Kc3 g4 b6 a3 c5 d2 c6 g2 b5 a2 b7 Ne7 h5 Bg7 c7 Nbc6 b8N Na5 h6 Ng6 h7 Kf5 b6 Ke4 b7 f5 Nd7 f4 b8N f3 Rh2 f2 Bf7 Nf4 Na3 Qf8 Bg8 Bb7 Bb5 f1B Ba4 Bfa6 Rc1 a1N c8B Nc2 Nc4 Ne1 Nc6 g3 Qh5 d1N+ Kd2 Kd5 Qh6 Nf2 Kc3 N2d3 Nd8 Bc6 Rc2 Nc1 Rd2+ Ke4 Rd1 Ra7 Rd5 Ba8 Bf7 Rc7 Bh5 Rc5 Bb7 Rg8 Nh3 g1B h8N Be3 Ng6 Rh8 Kb4 Rh7 Nc6 Rh8 Rg2 Rg8 Nd4 Kd3 Nd6 Rh8 Ng1 Rh7 Ka3 Kc3 Nf7 Rh8 Nd8 Rg8 Bb5 Bd2 Ka4 Kb2 Nf6 Ka1 N4c6 Rh8 Bf3 Bb4 Qg5 Rh2 Qh6 Ba3 Re2 Rf2 Bg2 Rf3 Bh1 Bb4 Rg2 Bd2 Ne2 Rfc3 Kb4 Ra3+ Nc3 Be3 Ne2 Nh5 Ne8 Bg5 Ng1 Nf4 Nf6 Bh4 Ba4 Rc4+
B1k2b1b/8/2r1b3/2B1B2R/2Nn1NpK/q1nR2Pp/5nB1/bRBbqQ2 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 c3 cxd4 h4 dxc3 Ra6 g5 Nf3 g4 Ra1 a5 Ng1 Ra6 Nd2 Rg6 Nb1 Rg5 hxg5 Bh6 Rh3 Bg7 Rh1 Bf8 Kf2 h5 e4 d5 b4 Kd7 g3 f5 b6 a4 e5 h4 g6 d4 b5 d3 b7 c2 g7 d2 b6 h3 Qe1 d1N+ Ke2 a3 Bg2 a2 Qf1 Ne7 g8R Nbc6 b8B Nd5 b7 Qa5 Na3 Rh6 Rb1 a1B Nc4 Qa3 Rg5 Nf2 Rh5 f3+ Kd2 f4 e6+ Kd8 Ba7 Nc3 b8B Nd4 e7+ Kd7 Rb3 Rc6 e8B+ Kd8 Be5 Be6 Bc5 Kc8 Ke1 Bd5 Ne2 Be6 Bb2 c1B Rg1 Ncd1 Rd3 Nc3 Bg6 Qb3 Bba3 Bcb2 Be4 Qa2 Kd2 Qb3 Bab4 Qa3 Bd5 Nh1 Ba5 f2 Bab6 f3 Ke3 Bd7 Kf4 Be6 Qb1 f1B Kg5 f2 Nf4 Be2 Qf1 Bd1 Kh4 Rd6 Ba8 Rc6 Qe1 f1Q Bbc7 Qe2 Qf1 Qe1 Ba5 Nb1 Bd2 Nc3 Bc1 Nf2 Ba7 Nb3 Qe2 Qd2 Bg7 Nb5 Bc5 Bc2 Rd1 Qe3 Qf1 Qe1 Bd2 Be5 Bde3 N3d4 Rb1 Bd1 Bc1 Nc3 Bh8 Bed6 Bf6 Bg7 Be5 Bh8 Re3 Bf8 Rf3 Ncb5 Rd3 Nc3
1n1bKB1n/2N1R1Nr/1N3Bq1/q1q3Nq/2Q1p2k/3rN2p/3P1R1B/1r4q1 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 dxc4 f5 g6 g4 Nh6 f6 Ng8 Bh3 Kf7 g5 Ke8 Bf5 Be6 h3 gxf5 Ra4 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Rh3 Qc8 Rh1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 a5 Ke6 h5 b4 a4 b6 c3 b5 f4 f7 e3 b7 h4 b6 a3 Qc2+ Qd3 Nf3 e2 Rh2 a2 Rf2 c4 Na3 h3 Bb2 Ra5 Re1 a1Q Nb5 Ra3 Nc7 Nh6 Qa4 c2 Bf6 c3 Qc4 Bg7 f8B c1R Na8 c2 Nc7 Nd7 b8B Rb1 b7 c1Q Rg2 Nf7 Rf2 Kh7 g6+ Kh6 g5+ Kh5 Rff1 Rh6 Rf2 Bh8 g7 Rh7 g8N Qg6 Nh6 Rd3 Ng4 Qa5 Ne3 Qca3 Ng1 Q3c5 Nf3 Qh6 g6 Bg7 Rd1 e1Q Ng5 Qg1 Re1 f3 Ree2 Bh8 g7 Qg6 g8N Qd1 Nh6 Bg7 Rf1 f2 Nhf5 Bh6 Rfe1 f1Q Rf2 Qg1 Ree2 Qd4 Ng7+ Kh4 Re1 Qdh5 Ree2 Nde5 Re1 Nc6 Ree2 Nd6 Kd7 Nf7+ Ke8 e5 Ba7 Nb8 Bac5 Ra3 Bcd6 Rd3 Re1 Nc6 b8N e4 Ref1 Qda7 Bh2 Q7c5 Nd7 Nb8 Nb6 Rc3 N5e6+ Bg5 Rc1 Ra3 Rc3 Rab3 Rd3 Ra3 Rd7 Rd3 Re7 Qab4 Bb2 Bf6 Ng5 Qba5 Rd7 Be7 Bf6 Bd8 Re7 Nh8+
R2N1N2/1R1Rb3/rp1nK3/2Q5/2BbB1pR/Rr5b/b1rP2b1/1Nq1q1k1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Nh3 f5 Ba3 h6 Bb2 f4 Ng1 Nc6 Bf6 Nce7 Bg5 Nf5 gxf5 hxg5 Kf2 Ke7 a4 Kd6 h4 Ke5 e4 c5 d6 b3 f6 g4 f7 g5 h5 g3+ Ke1 g2 Kf2 g4 d7 b2 a5 c4 h6 b6 a6 c3 h7 c2 a7 c1Q Nh3 Ne7 Ra3 Nf5 Qc2 Qe8 d8R Be7 f8N Nd6 Bc4 Be6 Ng5 Rc8 a8B Kd4 Bb5 Ba2 e5 Rc3 Qf5 Rc2 e6 Rg8 h8R Rg7 Nc3 b1R R1h7 Rb3 Bc4 Rf7 Qa5 Rf5 Qb4 Ra5 Rd7 Ra6 Nb1 Ke5 Nf7+ Kf5 Nh6+ Kg5 Rg7+ Kh4 Qc5 Kh3 Be4 Kh2 Rb7 Bg5 Rgd7 Be7 Bb5 Qb2 Bc4 g1B+ Ke1 f2+ Ke2 Qc1 Nf7+ Rh3 Rh6 f3+ Ke3 f1B+ Kf4 f2 Ke5 Bg2 Rh4 f1B Nd8 Be3 Kd5 Kg1 Ke5 Bd4+ Kd5 Bf6 e7 Rb3 Ke6 Bh3 Bg6 Bfg2 Be4 Qh5 e8R Be7 Nc6 Qg5 Ra8 Qe3 Nd8 Qee1
Kq5k/1n1P4/Bp2Nq2/1nr1N1nB/Q3B3/2r1R1Nb/pr2B1qR/3n2B1 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 b4 a5 Bb2 a4 Ba3 Bc5 Bc1 Bb6 a3 Nc6 Rh2 Ba5 bxa5 Nb4 Rh3 Na2 Rh1 Qd6 Qb3 Qxa3 Qc2 Qd6 Qd1 Qd8 Kf2 Kf8 Kf3 Kg7 Ke4 c5 g4 h5 d4 f5+ Ke5 b6 e4 f3 d6 h3 Kd5 f2 Kc6 f4 a6 h2 d5 a3 e5 h4 e6 c4 e7 h3 e8B f3 g5 c3 d7 c2 d6 Rh5 a7 Nf6 g6 Kh8 Nd2 Ne4 Ba6 f1N Nb3 f2 Ne2 Nfd2 Nc5 f1Q Nd3 Qff6 Ne5 Nac3 Ng3 Nf3 Be3 c1R Qa4 Nc5 Bg1 Nb5 Bf7 Rc3 Re1 a2 Re3 Nb7+ Bc4 Qg8 d8N Ng5 Ne6 Rb3 Bf1 Rb2 Be2 Rb8 a8B Qgf8 Nc5 Bf5 Ne6 Rc8+ Kd5 Rc3 d7 Qb8 g7+ Kh7 g8B+ Kh8 Bf7 Bg4 Rf3 Bf5 Bc5 Bg4 Kc6 Bf5 Re3 Bg4 Rf1 h1N Rf2 h2 Bg6 Bh3 Be8 Rh4 B8h5 Rhc4 Rg2 N7d6 B8b7 Nf2 Ba8 h1Q B8b7 Nde4 Rh2 Nd1 Ba8 Qg2 B8b7 Qg8 Ba8 Qgf8 Kb7 Qd6 Bd4 Rc7+ Kb8 Nc5 Be4 Nb7 Ka8 R7c6 Rf3 R6c4 Bg1 Rc5 Re3 Qb8+
BB3N2/2np3R/nNr1n3/1nqNN2q/1rp4b/1P2rq2/1RQ3N1/3B1K1k w - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 h4 gxh4 Kf2 Qg5 d4 Bb7 d5 Bxd5 b4 Bb3 cxb3 exf4 Nf3 Qd5 Ng1 Qd2 g4 Ke7 b6 Ke6 b7 Ke5 b5 Ke4 g5 c5 g6 f5 b6 a5 g7 h5 Nh3 a4 Ra2 f3 Kg1 c4 e3 f4 Ba3 f2+ Kg2 f3+ Kh2 Qd5 Rb2 Ra6 Qe2 Ne7 g8B Nc8 Nf4 h3 Rd2 h4 Bc5 a3 Rc2 a2 Bd6 a1N Rb2 Nc2 Qd1 Qd4 Be2 f1N+ Kg1 h2+ Kf2 h3 Bd5+ Kf5 Nc3 Kg4 Qc1 Be7 Bd1 Na7 Na4 Re8 Bc6 Nb5 Bc7 Qd5 e4 Nfe3 e5 Ncd4 e6 Ra7 Ke1 Kg3 Qc2 Qe5 Be4 Nd5 Ng2 Ra5 Bd6 Na6 b8N Bg5 e7 f2+ Kf1 Bf6 b7 Bg5 Nb6 Ra4 Bef3 Rb4 Nc6 Bf6 b8N Rc8 e8N Ne6 Ne7 Rc7 Rg1 h1R Nbc6 Kh2 Ng6 Rc8 Bb8 Qd6 Nc7 Qc5 Ke2 f1Q+ Kd2 Bd8 Be4 Qf3 Nf8 Bf6 Nf4 Bg5 Rg3 Re1 Ne5 Re3 Ng2 Kg1 Rg4 h2 Rh4 h1Q Rh5 Qhh3 Rh7 Qfh5 Bef3 Bh4 Be4 Kh1 Bef3 Nf6 Ba8 Ne8 Ncd5 Q3g4 Neg6 Rc6 Ne5 Rf3 Ke2 Re3+ Kf1 N8c7 Be2 Qe4 Bd1 Qef3+
1BK2Rqn/1q2k2N/nR1q4/2Qp2RR/B1qb1BN1/5bp1/P2r2b1/b6R w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 c5 d4 cxd4 g4 hxg4 Bh3 b5 Bg2 Ra6 Bh3 Rb6 Bg2 axb4 Bf1 b3 Qd2 b4 Qd1 Rb5 cxb5 Ba6 Be3 Bb7 Bc1 Bc8 Ke2 d5 Kd3 e5 f4 g5 h4 b2 b6 g3 h5 b3 h6 g2 f6 g4 b7 g3 f7+ Ke7 h7 Qe8 f5 Bg7 f8R Nh6 Nd2 b1Q+ Qc2 b2 Ngf3 g1B Rg8 Nf7 Ng5 Na6 b8B Bf2 Ndf3 e4+ Ke2 e3 Kd3 e2 Nh2 e1Q Ng4 Qc6 Bcf4 Qbc1 Qc5+ Qd6 Rb1 Qe6 Be2 Be5 Bd1 Bd7 Ba4 Qc4+ Kd2 d3 Rh5 Be1+ Ke3 d2 Rg6 Rf8 h8R d1B Nh7 B1c3 Rgg5 Bf3 Rbh1 b1Q f6+ Ke8 Rhg8 Ba1 R8g6 Nh8 f7+ Ke7 Rgh6 Re8 f8R Qg8 Rhf6 Bf5 Rfg6 B5e4 Rgf6 Kd8 Re6 Qb7 Reh6 Qde7 Rb6 Bed4+ Kd2 Qb5 Rbh6 Bg2 Re6 Bdb2 Ke3 Qc4 Rb6 Qec7 Be5 Qe7 Kf4 Bef3+ Kf5 Bd4 Bf4 Qec7 Rff6 Re2 Rf7 Rd2 Ke6 Qf8 Rff5 Qcg7 Rf7 Qfg8 Kd6 Qe7+ Kc6 Qd6+ Kb7 Nc7 Rff5 Qgd7 Rf6 Ke7 Rf8 Qc6+ Kc8 Na6+ Bc7 Qa8+ Bb8 Qb7+
1N2RKbN/2b1pr1r/P1b5/2rB2r1/3BNbk1/1N4q1/1n4Rp/4NRQq w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 a5 c4 g5 b4 axb4 h5 f5 f4 Nd7 fxg5 f4 g6 Nb6 g5 Nd5 h6 Bxh6 cxd5 Bf8 Kf2 Kd7 a4 h5 d4 b5 a5 c5 g7 f3 Kg3 h4+ Kg4 e3 Kf5 c4 Kg6 c3 Kf7 c2 d6 b3 d5 f2 a6 b2 g6 e2 Qd4 e1B Bf4 c1R Ne2 h3 Be3 b4 Na3 b1B Qd3 h2 Nc4 b3 Nb2 Bb7 Bg2 Nf6 g8R f1R g7 Bg3 Ra2 Rf5 Nd4 Qb8 Qf1 Rh7 Nd3 Rc5 Be4 Be5 Rg2 b2 Bf3 Ba2 Qd1 Bc4 Nb3 b1Q Bd4 Rfh5 Qc1 Ng4 Qe1 Kd8 d7 Nf2 Qc1 Kc7 d8N Kd6 Nc6 Nd1 Re1 Qc7 Be4 Rd8 Nb8 Nb2 Qe3 Bg3 Rh1 Qg1 Ne1 Bc6 Bf3 Qf2 Rf1 Qg1 Qf2 Qh1 Qg1 Rc8 Be3 Ke5 Bd4+ Kf4 Rh8 R7h6 g8N Rd8 Nf6 Rh7+ Kg8 Bg7+ Kf7 Rg5 Rf8 Rd6 Re8 Re6 d6 B4d5 Ne4 Be5+ Kf8 Reg6 d7 Rgg7 d8N Bg8 Ned2 Bd6 Be4+ Kg4 Nf7 Be5 Nh8 Qd6 Bf2 Qd3 Bd4 Bc7 Bd5 Qe3 Rgf2 Qc3 Ne4 Qd3 Ng2 Bgf4 Ne1+ Qg3 Rg2 Rf7+
7R/3n1Rr1/rR3pRR/q1P5/1rr1q1b1/BN2qr2/kN2p1B1/r1Q1B2K w - - 0 1 legal: proof: h4 a5 b4 axb4 d4 c5 h5 cxd4 e3 d3 h6 d2+ Ke2 gxh6 Kd3 h5 Ke2 h4 Nh3 e5 Ng1 d5 Kf3 d4 Ke2 Bd6 f4 e4 Kf2 Be5 fxe5 d3 Rh3 Nc6 Rh1 Nd4 exd4 Kd7 Ke3 Ke7 Kf2 Ke8 g4 Kd7 Kg2 Ke6 a4 Kd5 a5 Kc4 d5 b5 a6 h5 c3 b3 g5 b2 d6 e3 e6 e2 e7 h3+ Kh2 b4 e8R b3 d7 h4 g6 Rh7 a7 Nf6 g7 Qa5 d8B Nd7 g8R f6 Be7 Rg7 Qc2 d1Q Bb4 Qd2 Ra3 Qe3 Nf3 d2 Nd4 d1R Bg2 Rf1 Re6 Rf3 Rf8 Qf2 Rg1 Qe3 Kh1 h2 Ra4 Nb6 Rd6 Bg4 Rf7 Nd7 Rb6 Rc8 a8R Rc7 Rh8 Ra7 Bh3 Ra6 Kg2 h1R Nd2+ Kd5 Rh6 b1R Bca3 b2 N4b3 Rc1 Nc4 b1R Nb2 Ra1 Rf1 Rcb1 Qc1 Rg1+ Kh2 Rgg3 Bg2 h3 Kh1 h2 Rg1 Rh3 Nd2 Rh4 c4+ Kd4 c5 Kd5 Qe1 Rc1 Qf1 Rc4 Rh8 Kd4 Nb3+ Kd5 Be1 Rb4 Nd2 Kd4 Rh6 Kc3 Nb3+ Kc2 Rh8 Kb1 Rh6 Rc4 Rab4 Ka2 Rb8 Rh5 R4b6 Rhf5 Rbh8 R5f4 Bf2 Rb4 Qc1 Rfc4 Be1 Be6 Bf1 Rf2 Rgg6 Bg4 Bg2 Rf5 Bf3 Rff4 Kg2 h1Q+ Kg3 Qh5 Kg2 Qf5 Kh1 Qfe4 Bg2 Rf3
KRN5/p7/2kP2q1/Rn1R2b1/1pB1R2b/q1B1R1bN/2b1B2Q/1b1b1n1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 e5 c5 exf4 c6 b4 Rh3 Na6 Na3 Rb8 Rh1 dxc6 Nb1 c5 Qb3 c4 Qc2 Bd6 Qd1 Bf8 b3 c5 Nh3 h5 Ra2 c3 Rh2 c2 Rh1 c4 Ng1 c3 Ra1 Rb5 axb5 Rh6 Na3 Rc6 Nb1 Rc4 bxc4 Ke7 Kf2 Kd7 Ke1 Ke8 Kf2 f5 Kf3 Kd7 d4 h3 e4 h4 g4 h2 d5 h3 b6 Qg5 b7 Kc7 b8R Bg7 e5 Bb7 c5 Ne7 e6 Be5 c6 Qg6 Bd2 c1B g5 c2 d6+ Kb6 Bb5 Nc7 Be2 Nb5 Bc3 Nd5 e7 Ne3 e8R Nf1 Nd2 Bb2 Re6 c1B Nc4+ Kc5 Qd2 Bc8 c7 Kc6 Kf2 f3 Ra5 f4 Nb6 Bd7 Ree8 Bf5 Nc8 Bf6 Re3 Bb1 Nb6 Bc2 c8B Ba1 Be6 Be5 Nc8 Bb1 Ke1 f2+ Kd1 f3 B6c4 Bg3 Qa2 Qe6 g6 Bd2 g7 Qg6 Re4 Bg5 g8R Bb2 Rf8 Bbc1 Rfe8 B5h4 R8e6 Bcg5 R6e5 Nd2 Kc1 f1B Kb2 f2 Rd5 Bg2 Re3 Nf1 Kb3 Bf3 Ka4 Bfe4 Nf3 Bed3 Rg1 h1Q Qc2 Nh2 Re1 Nf1 Ng1 h2 Nh3 Qf3 Qd2 h1B Re4 Be5 Qf4 Qe3 Qh2 Beg3 Bh5 Qc1 Bd1 Na3 R1e3 Qb2 Be2 Qc1 Rab5 Bdc2+ Ka5 Bd1 Ka6 Bdc2 Ra5 Nb5 Bg4 Qa3 Bh5 Nd2 Bd1 f1B Bg4 Be2 Bh5 Kd7 Kb7 Bed1 Bhe2 Nf1 Ka8 Kc6
2b4N/1n1qB3/3b1N1b/n1n4q/Nk1n4/1N1p1RR1/qR1PQpK1/1q3B1N w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 f5 g4 f3 b5 a6 Qc2 axb5 Qa4 bxc4 Qd1 c3 h3 b5 Qa4 h5 Qb3 g5 Qd1 f4 Kf2 Ra6 Ke1 Rf6 h4 Rf5 gxf5 g4 Qb3 Rh6 Qa4 Rg6 Qd1 Rg5 hxg5 Bb4 Qc2 Be7 Qd1 Bf8 Kf2 Ke7 e4 Kd6 a4 Kc5 f6 d5 e5 h4 g6 c2 g7 h3 e6 h2 a5 g3+ Ke1 d4 e7 b4 e8R d3 f7 b3 a6 g2 Kf2 b2 a7 Nf6 a8N Bd6 f8N Nc6 g8N Na5 Ne7 Qd7 Be2 Kb4 Nf5 c5 Rd8 c4 Nc3 b1Q Bf1 Nb7 Nd4 Qa2 Ne4 c3 Nge2 g1N N2g3 Ne2 Bb2 c1N Nb3 c2 Ng6 Nd4 Rg1 h1Q Qe2 Qh5 Rb1 Bf8 Nh1 Bh6 Nbc5 Ncb3 Rf8 c1B Nh8 N3a5 Nb3 Kb5 Ba1 Kb4 Rg3 Ba3 Kg1 f2+ Kg2 Qdb5 Rb2 Nd7 Nb6 Ndc5 Na4 Qd7 Nf6 Qhg4 Kh2 f3 Bg2 f1Q Bh3 Qfb1 Bf1 f2 Kg2 Nce6 Ne4 Qh5 Rff3 Kb5 Rc2 Nf5 Bf6 Nfd4 Be7 Bd6 Nf6 Kb4 Rb2 Nec5
4Rb2/4K1Qq/Nn1n1B1B/1k1q1B1N/1bqbRppB/n6P/bB5n/3R4 w - - 0 1 illegal: No possible last move
bRqnbr2/K3P3/NRBk4/rn1N3N/pRr1b3/3R1Qp1/2p1B2n/7R w - - 0 1 legal: proof: d4 b5 g4 d5 c4 dxc4 a4 e5 axb5 h5 Bh6 hxg4 Bg5 Nh6 Bc1 Ng8 f4 Be6 e4 Qd5 Be3 Qc5 d5 Qa3 Bd4 exd4 e5 Bc8 e6 Qd6 Qc2 Qd8 Qd2 Bd6 Qd1 Be5 fxe5 Qd6 Ne2 Qd7 Ng1 Qd8 Kd2 Ke7 b4 g5 h4 a5 h5 f5 b6 c5 b5 g3 b7 a4 h6 c3+ Kd3 c4+ Kc2 g2 h7 g4 b6 f4 Qf3 g3 Bd3 Nf6 Nh3 g1N Be2 Nc6 b8N Bb7 Na6 Rf8 h8R Ne8 Rh4 Nd6 Ra3 Qe8 Rb3 Nb5 Rb2 Qc8 d6+ Kd8 e7+ Kd7 Rb3 Nd8 e8B+ Ke6 d7 Be4+ Qd3 f3 b7 f2 b8R f1B Nf4+ Ke7 e6 Kd6 e7 Nf3 Nh5 Nh2 Rf4 Bfg2 Rf6+ Ke5 Rfb6 Bgf3 Rb4 Ra7 Nc7 Ra5 Na6 Ba8 Qd1 Bfc6 Qd3 Kd6 Qf3 d3+ Kc1 c2 Kb2 c1R Nc3 d2 Nd5 d1B Ka2 Nf7 d8R+ Ke6 Rd7 Nd8 Kb2 c3+ Ka2 Na7 Ka3 Bc2 Rd6+ Ke5 Bd7 Bb5 Bc6 Bcd3 Rc4 Rc2 Kb4 Be4 Kc5 Rc1 Ndf4 Rc2 Rd3 Rc1 Nd5 Ke6 R6b7 Ke5 Kb6 Kd6 Be8 Bc6 Rb4 Nb5 Bd7 c2 Be8 Rb1 Bd7 Rb3 Be8 Rc3 Bd7 Nc7 Ka7 Bb5 Bc6 Rc5 Rb6 Rc4 Bb7+ Bc6 R6b5 Bd7 Bc6 Be8 R5b6 Nb5+
n4NN1/BR1qp1k1/r1b2R1b/3n4/r1NP4/1n1Bb1p1/1KB3Qp/1B1Br3 w - - 0 1 legal: proof: b4 b5 g4 c5 bxc5 g5 a4 d5 e4 dxe4 h4 gxh4 axb5 f6 g5 f5 Qg4 fxg4 Kd1 Kf7 c4 a5 Kc2 h5 f4 a4 f5 g3 f6 a3 c6 a2 c5 h3 c7 h4 b6 e3 b7 e2 g6+ Ke8 g7 Kf7 c6 e1R Nc3 h2 Nd5 h3 Kb2 Be6 c8B Ra4 c7 Ra7 Rb1 Qd7 Nf3 Rh4 Ne5+ Ke8 Nc4 Kf7 Bd3 Rh7 Rf1 Na6 b8Q h1N Qa8 h2 Bb7 Bh3 c8B Rh6 Bc6 Bg4 Ba4 Bf3 Bd1 Nc7 Ba6 Be4 B3c2 Nf2 d3 Kg6 f7 Nf6 g8B Kg7 Bh7 Bh1 Qb7 Na8 Be3 N2e4 Bb6 Nd2 d4 Nb3 Bb5 Ra4 Ba7 Ne4 Bg6 Nc3 Nf6 Bc6 Ng8 Nd5 Rf6 Kh8 Na3 Kg7 Bbd3 a1B+ Ka2 Rb4 Nc4 Bc3 Bgf5 Bd2 Kb2 Ra4 Bfe4 Kh8 Bg6 Bg7 f8N Be3 Bgf5 Rg6 Bfe4 Bgh6 Bf5 Kg7 Bfe4 Ndc7 Bf5 Bb5 Qg2 Nd5 Bde4 Rg5 Bh7 Nd2 Kc1 Ndb6 Bb3 Ra6 Ba2 Ba4 Bc2 Rga5 Bhd3 Nd5 Rb7 Bc6 Bab1 Nb3+ Kb2 Ra4
4k2n/3rb2q/rp1R2pB/6QR/brR2K2/2p1P1BN/Nr2B1B1/1B1nb3 w - - 0 1 legal: proof: h4 e5 b4 a5 c4 axb4 f4 exf4 g3 fxg3 h5 d5 cxd5 g6 h6 Qh4 Bb2 Qf6 Bc1 Qg7 hxg7 Bd7 Bg2 Bf5 Bf1 Bc8 a4 h5 d4 f5 Kd2 c5 Ke3 b6 a5 g2 d6 b3 d5 c4 a6 h4 a7 f4+ Ke4 b2 e3 c3 Bd2 h3 Be1 h2 Nd2 b1R Qg4 f3 Nb3 f2 Ra4 Rb2 Kf4 Na6 Nc1 Nb4 Be2 Nh6 g8B Be7 Qg5 Bd7 Nh3 g1B Na2 f1R+ Bf2 Ra1 Bg3 Rd8 a8B Bf2 Be6 Rh7 Bf5 Nf7 Bb1 Nh8 Bb7 Bc6 Ba8 Be1 d7+ Kf7 d6 Nd3+ Kg4 Re8 d8B Nf2+ Kf4 Nd1 Rc4 Ba4 d7 Rf8 Bg2 Rb4 Rf1 h1Q Rg1 Qh2 Rh1 Rb2 Bc7 Ra8 d8R Ra6 Rd6 Ke8 Nc1 Ra3 Na2 Rab3 Bd8 Rb4 Bc7 Bf8 Bd8 Rd7 Be7 Bg7 Bf8 Bf6 Bh6 Be7 Nf2 Qg1 Rh5 Qh1 Nh3 Qf1+ Ke5 Qf7 Ke4 Qg7 Kf4 Qh7
Nn3N2/p2RRB1B/1B1pb2n/PbRB1n1p/Qn5B/r3b3/6qr/K5k1 w - - 0 1 legal: proof: c4 b5 e4 e5 b4 g5 h4 gxh4 d4 c5 bxc5 bxc4 dxe5 f5 Qd6 fxe4 Qd4 Be7 Qd1 Bf8 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 a4 h5 g4+ Ke6 f4 e3 g5 Kf5 g6 Ke4 f5 h3 e6 h2 g7 e2 e7 e1N e8B Be7 c6 Bg5 a5 Qf6+ Nc3+ Ke5 c7 Nh6 g8B Ba6 c8R Be3 Bd3 Kf4 Nf3 Kg3 Rc5 Kf2 Nd4 Qg7 f6 Bb5 f7 Ng2 f8B Nh4 Be7 Qg2 Re1 h1B Ne6 N4f5 Na4 c3+ Kb1 Rh7 Bef7 Rg7 Bh4+ Rg3 Nf8 d6 Nb6 c2+ Ka2 Bc6 Rb1 Bb5 Bd2 c1N+ Ka1 Na2 Qa4 Nb4 Rb3 Ne7 Bdh7 Nef5 Re2+ Kg1 Bd5 N8a6 Bgf7 Re8 Na8 Nb8 Bc3 Rh3 Bd4 Rh2 Rbc3 Re6 Rc7 Re4 Bb6 Rc4 Rcc2 Rc3 Rd7 Ra3+ Ba2 Qg5 Rc5 Bb7 Bd5 Qg2 Bf7 Bc8 Bd5 Bd2 Ree7 Be3 Bf7 Rd3 Bad5 Rc3 Rd8 Be6 Rdd7 Ra3+
1K1BNN1B/1RBp2Nb/b3r2n/1q1RP3/7r/5p1Q/k1rnq1pN/5rN1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Qd1 f4 Ng1 f3 Bh3 Bd6 Bg4 Bf4+ gxf4 hxg4 Kd3 Kf7 Kc4 Ke6 Kc5 f1R e4 a5 h4 g5 b4 a4 c4 d3 b6 d2 b7 g3 f5+ Ke5 h5 g2 h6 a3 b5 a2 f6 g4 f7 g3 f8N Ra6 h7 Nf6 b6 Re1 Rh5+ Kf4 Kd6 Ke3 c5 Kd4 c6 Kc4 c7 Ra4 Rd5 Rf1 e5 Na6 b8N Ng4 b7 Nh6 Nc6 Nc5 b8B Ba6 c8N Qa5 N6e7 Nb3 Bc7 Qb5 Nf5 Ra3 Qe1 d1B Ng7 Bc2 Bg5 Nd2 Bgd8 Kb3 Qe4 Kb2 Qg4 Rc3 Qh3 Rc4 Rd3 Rh4 Rd5 Rg8 h8B Bh7 Ne8 Rc1 Ne7 Rc2 Nf5 Rgg4 Nfg7 Rd4 Na3 Kb3 Re1 a1R Rb1+ Ka2 Nc4 Rd3 Rb3 Rf1 Ne3 Rdc3 Ng4 Rc6+ Ke7 Qe2 Rb7 Qb5 Nh2 Rg6 Ba5 Rb6 Bc7 Re6+ Kd8 Qe2 Kc8 Qb5 Ne2 g1Q Kb8 Qg2 Ng1 Qge2 Bab6 g2 Bd8 Qe4 Bbc7 Qee2
1R4R1/r6N/2R5/bpq1K3/1NBR1QqP/pqp2N2/n1Bn1kb1/4n1bR w - - 0 1 legal: proof: b4 b5 g4 h5 e4 hxg4 a4 f5 exf5 c5 a5 a6 c4 d6 Bb2 Ra7 Be5 Rb7 Bf4 Rb6 axb6 a5 Be3 cxb4 c5 Rh5 c6 Rh8 Bc5 dxc5 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Ke4 e5 f4 a4 d4 c4 h4 c3 c7 b3 d5 a3 b7 b2 d6 g3 d7 g4 Bc4 g2 Bd3 g3 Qf3 Qe7 d8R Nc6 b8R Rh7 Ne2 g1B Nc1 g2 Na2 Nb4 Rd4 Qc5 Nd2 b1Q Bc2 Qb3 Re1 Ba6 c8B Ra7 Be6 Bb7+ Bd5 Bd6 Qf1 Bc7 Nf3 Ba5 Red1 Ba8 Rc4 Bc6 Rdd4 Ba8 Nc1 Na2 Nd3 Bf2 Qc1 g1Q Nb4 Qg4 Qe3 Bg1 Qd2 Kg7 f6+ Kh6 f7 Kh5 f8N Bb7 Nh7 Nf6+ Kd3 Ne4 f5 Bc6 Qf4 Nd2 f6 Ba8 f7 e4+ Ke2 e3 Kd3 e2 f8R Bb7 Rg8 Bc6 Be6 Ba8 Nfg5 Bg2 Nf3 Nf1 Ke4 e1N Bd5 Nd2+ Ke5 Qf8 Rc6 Qc5 Qf6 Qg7 Be4 Kg4 Bf5+ Kg3 Bc2 Qg6 Qf5 Kf2 Qf4 Qf8 Bf7 Qg4 Bc4 Qc5+
k3q2N/Nr2R1p1/p1PrR3/N2q1b1N/rn1B4/1B6/N1p3RK/1qnQ3n w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 c4 e5 g4 exf4 Nf3 hxg4 Ng1 d5 axb5 dxc4 Qc2 c3 Qa4 c4 Qd1 Bc5 bxc5 Qc7 Bh3 Qd7 Bf1 Qd8 Kf2 Kd7 Kg2 Kc7 h4 Kb7 d4 f5 e4 f3+ Kh2 a6 e5 f2 e6 f4 d5 c2 b6 f3 h5 c3 h6 Nc6 e7 Na7 e8R Qd7 d6 Rb8 h7 Ka8 Ra2 Nf6 Bb2 c1N Re6 Nh5 Bc4 f1Q Bb3 f2 Ne2 Qe8 d7 Nc6 d8N Rb7 Nf4 Qb5 Rhe1 Ng3 Nh5 Nb4 Nc6 f1Q Na5 Nh1 R1e4 Rf8 h8N Rf6 Re7 Rc6 R4e6 Rd6 Ba1 Qfc4 Rg2 c2 Nc3 Qd5 Na2 Qf1 Bd4 Qe1 Re3 Bf5 R3e4 Qc3 R4e6 Qb2 Nf4 Qb1 Nh5 g3+ Kg1 Rbd7 b7+ Ka7 b8N Rb7 Nbc6+ Ka8 Rd2 g2 Kh2 g1R Rg2 Re1 Na7 Re4 c6 Nbd3 Bc3 Ra4 Bd4 Nb4
2R3bq/1R2q1Np/1QpP2Nb/2pq2k1/3rq3/2qr1BB1/B1K1Bn2/1B2N3 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d6 c5 dxc5 f3 Bb7 f4 Bc8 h4 exf4 b4 g5 Ba3 gxh4 Nc3 a5 Nb1 a4 Bb2 Nc6 Bc1 Na5 bxa5 Bd6 Nh3 Be7 Ng1 Bf8 g4 Ke7 d4 Kf6 Kd2 h3 e4 h2 d5 a3 d6 f3 e5+ Kg6 g5 f5 a6 a2 b6 f2 a7 f4 e6 f3 e7 Rb8 e8B+ Kf5 a8B Kf4 g6 Kf5 g7 Nh6 g8B Kg5 b7 Qd7 Bg6 Qe7 Nh3+ Kg4 Ng5 Be6 Be2 f1Q Na3 Qg2 Qb3 Re8 Rg1 h1Q Rb1 a1Q b8N Qc3+ Kd1 Kh4 Bf4 f2 Qb6 Ng4 Baf3 c6 Nd7 Bh6 Nc2 f1Q+ Ne1 Bb3+ Bc2 Nf2+ Kc1 Ra8 Nf8 Ra4 Nge6 Rd4 Ng7 Qg6 Bgd5 Rg8 Bdc4 Qge4 Ng6+ Kh3 Rg4 Ra8 Rg5 Ra3 Bg3 Qd5 Rb2 Qfg2 Kb1 Qg8 Rf5 Qh8 Bcd5 Bc4 Rf8 Bb3 Rc8 Bc4 Bde4 Bg8 Bd5 Rb3 Bdc4 Ra3 Ba2 Rb3 Bh5 Qd5 Bcd3 Qhe4 Bhf3 Qcc4 Bc2 Rbd3 Rb4 Qde5 Kb2 Qcd5 Bcb1 Q5f6 Bh1 Qff3 Kc2 Kg4 Rb3 Kg5 Rb2 Qfe3 Bhf3 Qef5 Qc7 Q3e4 Rb7 Qfd7 Qa5 Qdd8 Qb4 Qa5 Qb6 Qc3#
r2nN1B1/2bbpNK1/k2q1PQR/2r5/p2q1p2/2BN1B1b/R5N1/1qN4q w - - 0 1 legal: proof: e4 c5 h4 b5 a4 g5 axb5 gxh4 d4 cxd4 Be3 f5 Qc1 f4 Bd2 Na6 Qd1 Nb4 Bc1 Nd5 Kd2 Ne3 f3 Nf5 exf5 Qa5+ Kd3 Qc3+ Ke2 Qxf3+ Kd2 Qg3 Ke2 Qe1+ Kd3 Qf2 Ke4 Kd8 g4 Kc7 c4 Kb7 b4 a5 f6 h5 Kf5 d5+ Kg6 d3 b6 d4 b5 h3 g5 d2 c5 a4 c6+ Kb8 c7+ Kb7 Be2 h4 Nf3 d3 Nc3 h2 Qc2 d1B Bd2 h3 Ra2 Rh4 Ne1 Qe3 Ng2 Bd7 c8N Bg7 Bf3+ Qe4+ Kf7 Rh7 g6 Bh6+ g7 Bg5 Ne2 Rh5 Bc3 d2 Nc1 Bh4 Kf8 Nh6 g8B Be2 Kg7 d1Q Qd3 Rc5 Nd6+ Kb8 b7 Ka7 b8N Qd4 Qf5 Bf1 Ne8 Nf7 Na6 Nd8 Nb4 Bf2 Nbd3 Be1 b6+ Ka6 b7 Qd6 Ba1 Ba5 Bc3 Bc7 Qg6 Qd2 Bh5 Qe3 Bf3 Qed4 b8N+ Ka7 Nc6+ Ka6 Rg1 h1Q Nce5 h2 Nf7 Re5 Ne3 Bfh3 Ng2 Rc5 Re1 Qf1 Re5 h1Q Rh5 Qd1 Rh4 Qc2 Rh6 Qb1
1R6/1NpN1knR/2q3Nb/1BK5/P1bN3Q/Npqp2b1/1B2Rnq1/b3r3 w - - 0 1 legal: proof: h4 b5 e4 e5 b4 g5 c4 gxh4 Ne2 f5 Ng1 bxc4 b5 a6 d3 axb5 exf5 c3 d4 e4 Bd2 Ra6 Bf4 Re6 Bc1 Re5 dxe5 Ba3 Nf3 Bd6 Ng1 Bf8 Ke2 h5 Ke3 d5 Kd4 b4 f4 e3 g4 h3 a4 h4 e6 h2 g5 h3 g6 c2 f6 b3 f5 e2 g7 e1B e7 Ba6 Bb2 c1B Be2 Nh6 g8R Bg3 Qf1 Nc6+ Kc5 d4 Bb5 d3 Ra2 Kf7 Ne2 Ne5 Nd4 Bg7 e8N Neg4 Qe1 Nf2 Na3 Qb8 Qe4 Qa8 Qh4 Qg2 Ra1 Bcf4 Rae1 Rh7 Re2 Bh8 Rc1 h1Q Rc4 h2 Rb4 Qa1 Rg7+ Kf8 f7 h1Q Nd6 Bg5 Nb7 Bd2 Be8 Bc4 Bb5 Bc1 Rg5 Bcf4 Rh5 Kg7 f8N Kf7 f6 Nf5 Nd7 Ng7 Bc6 Rh6 Bb5 Rg6 Rh7 Bh6 Rc2 Rg4 Rd2 Re4 Re2 Kg6 f7 Qhc1 f8N+ Kf7 Rc2 Re1 Re2 Qc3 Ng6 Qac1 Ba6 Q1c2 Bb5 Be5 Nf3 Qd4+ Kc6 Rd1 Ba1 Bg3 Nbc5 Re1 Ba6 Be6 Rb8 Qd5+ Kb5 Qc6+ Kb4 Bd5 Bb5 Bc4 Nb7 Be3 Rh5 Ne8 Rh7+ Bg7 Be5 Bd4 Bf6 Ba1 Bb2 Qc1 Nd4 Qc2 Rh8 Bh6 Rh7+ Ng7 Re6 Qce4 Kc5 Qc3 Re5 Qef3 Re2 Qc6+
3q1B1k/pp1Nr3/1b1Qr1r1/1RBp4/1R3N2/1R2r1q1/P1n1B3/rKBB3q w - - 0 1 illegal: No possible last move, all moves rejected
R6b/1pp5/N2PBB2/r1qNRb1K/r1bbN1b1/8/N2p1B2/kbQ3Nq w - - 0 1 legal: proof: f4 d5 e4 e5 g4 exf4 c4 a5 b4 Ne7 g5 d4 d3 Nd5 cxd5 axb4 Qe2 Na6 Qd1 Nc5 e5 Ne4 g6 hxg6 dxe4 g5 Qd3 g4 Qb3 Ra6 Qd1 Ra8 Kf2 Ke7 a4 f5 h4 g5 e6 Kd6 h5 Kc5 a5 g3+ Kf3 d3 h6 Kc4 e5 b3 d6 b2 e7 g2 e8N Bg7 Nc3 b1B e6 Ra7 Qd2 Kb3 e7 Be5 h7 g4+ Kf2 f3 a6 f4 Rh5 Rg8 h8B Rg5 Bf6 Bf5 Ng7 Qh8 e8N Qh6 Ne6 g3+ Ke1 Bd4 Na2 f2+ Kd1 Ra8 a7 f3 Qe3 Bb2 Nc5+ Ka3 Be2 f1B Na6 f2 Bg4 Be2+ Kd2 f1B Qc5+ Kb3 Ke3 d2 Kf4 Bd4 Bb2 Bc4 Kf3 Be5 Bd4 Qh8 Bf2 Kb2 Bh3 Rg4 Rg5 Re4 Bg4 Qh1 Rh5 Bd4 Qc6 Re5 Kf4 Ra5 Kg5 Rb8 a8N Ra4 Ne2 g1B Nb6 g2 Nd5 Ra8 Bh3 Bh2 Ng1 Bg3 Kh6 Bge5 Rg5 Ra5 Kh5 Ra7 Be7 Bh8 Nef6 Ra8 Ne4 Ra7 Bf6 Ra4 Ne2 g1Q Qc5 Bg2 Qc6 Qc1 Ng1 Qc2 Rg8 Qc3 Re8 Qa5 Re5 Qc5 B6h4 Ra8 Bg4 Bh3 Bf6 Bh7 Be6 B7f5 N2b4 Ra5 Ra3 Ra7 Na2 Ka1 Ra4 Qb4 Qc5 Qb5 Qa3 Qc5 Qc1 Ra8 Ra3 Ra7 Rg3 Ra8 Rg8 Ra7 Ra8 Ra4 N6b4 R7a5 Na6 Bhg4+
b7/1BPRp3/R3p2R/NrppN1K1/1k2q3/3rNn2/2rq1qBQ/R3Rn2 w - - 0 1 legal: proof: c4 a5 e4 h5 g4 g6 d4 c6 e5 Nh6 d5 Ng8 e6 fxe6 d6 Bh6 gxh5 Be3 b4 Bb6 Bd2 Bc7 dxc7 b5 Bc3 bxc4 b5 Kf8 Bd2 Ke8 Bb4 axb4 Kd2 d5 Ke3 Kd7 Kf4 Kd6 h4 Kc5 a4 b3 a5 b2 h6 c3 h5 c2 a6 c1Q+ Qd2 Qe1 h7 Qf8+ Kg5 Nd7 f4 Qf7 f5 Ndf6 b6 Qc1 b7 Qe8 b8N Ng4 f6 Ne3 a7 Nh6 f7 Nhg4 f8R Bb7 h6 Ne5 Na3 b1R Nf3 Rb5 Qh2 Qd2 Bg2 Kb4 Rhe1 c5 Nc4 Nf1+ Ne3 Qf7 Rd8 Qf5+ Kh4 Qfd3 Kg5 Qe4 Rd7 Rf8 h8R Rf4 Ng1 Rf3 h7 Rf2 Re8 Bc6 h8R Nf3+ Kh6 g5 Ref8 Ne5 Nf3 g4 Kg5 g3 Rh6 Re2 Rfd8 Rf2 Rd6 Bb7 Rda6 Bc6 Bh1 g2 Rd7 g1Q+ Bg2 Re2 Qh5 Qf2 Qh2 Ng6 Ne5 Nh4 Nc4 Bb7 Na5 Bc6 Rd8 Bb7 Nd7 Rb8 Ne5 Ba8 Rd7 Nf3+ Kh5 Bc6 a8B Rg8 Bb7 Rg3 Bc8 Ba8 Bb7 Ng1 Nd1 Rd3 Ne3 Nf3 Rc6 Qc1 Rb6 Rc2 Ra6 Qd4 Kg6 Qcd2 Kh5 Qc4 Kg6 Qe4+ Kh5 Nh4 Kg5 Nf3+
2n1N3/n4Q1n/1nkbR3/3n2Pr/NK1Rppp1/7R/rB3pN1/N1B3Nq w - - 0 1 illegal: No possible last move
n1B1q1Bk/rNp2R2/N1R4p/1K2p1bQ/1B4P1/Rp3rr1/rB6/n1Bq4 w - - 0 1 legal: proof: g4 d5 e4 g5 h4 f5 c4 a5 b4 axb4 f3 Be6 f4 dxe4 fxg5 f4 h5 Bd5 h6 Nxh6 cxd5 Ng8 Ke2 Kf7 d4 Kg7 a4 b5 a5 h6 a6 e6 g6 b3 d6 e3 Kd3 b4 Kc4 e2 a7 e1R d7 f3 d5 f2 d6 b2 Ne2 b3 Ra3 Nf6 Nf4 Na6 Nd2 b1Q Ne4 Qc8 d8B Qb8 d7 Nb4 Nd3 Bc5 Be7 Bb6 d8B Qa1 Nd6 Nc2 Nb7 Rf8 Kb5 Re2 Ndc5 Nd7 Qd5 Rf3 Qh5 Kh8 Na6 Be3 Bb4 Nb6 Rg1 Rg3 g7+ Kg8 Bg5 e5 Bb2 Qd1 Bg2 Na1 Rf1 Kh7 g8B+ Kh8 Bc6 Qe8 Bd7 Qd4 Rc1 f1R Rc6 Qd1 Bc8 Rff3 Bf4 Bf2 Bfc1 Be3 B2c3 Ra2 B3b2 Rb8 a8R Bg5 Bce6 Rd8 Rc8 Rd2 Rd8 Na8 Bc8 Rd4 Rd7 Rd6 Rf7 Rd4 Be1 Ra4 Bb4 Bd8 Nb8 Ra7 Na6 Bg5
1r4rN/bbk1r1QP/p4R2/2r1pRRp/4R1p1/1p4N1/1BB1R1bK/3B2n1 w - - 0 1 illegal: No proof kernel
3n1r2/RQ1q2R1/n1q2PR1/2bN4/1q2R1BR/1r1b4/kn1K2nN/1bBBn2r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 f4 Ke6 g4 Kd5 g5 h5 b6 a5 g6 e5 b5 e3 b7 h3 b6 h2 g7 e2 c3 Kc4 f5 d5 f6 e4 Bd2 h4 Nf3 h3 Rg1 h1Q Rg3 a4 Rg5 a3 Be3 h2 Ng1 d3 Qc2 d2+ Kf2 d1B Ke1 a2 Rh5 d4 Rg5 d3 Rh5 Ne7 g8R Ra3 Nf3 Nec6 Rg6 Bc5 Kd2 e1N Qb2 Be2 Rh4 Na6 b8R Rf8 Rb7 Bf5 Rbg7 Ng2 b7 Qd7 b8R Nd8 Qb7 Rb3 Ra8 Bd1 Be2 Bc2 Bd1 Qe1+ Kc1 h1R Ra7 Qc6 Bf4 e3 Nh2 e2 Bh6+ Be4 Bf4 Qf1 Be3 e1N Kd2 Qf5 Bf4 Qfd7 Bg5 Kd5 c4+ Kd4 Nc3 Bb1 Bg4 Bf5 Nd5 Be4 Kd1 Bf5 Bc1 d2 Ke2 d1N Kd2 Nb2 Bd1+ Ke5 Re4+ Kd6 Rh4 Bbd3 Rb1 a1Q Re4 Qa3 Rh4 Bb6 c5+ Ke5 Ra1 Bfe4 Ra2 Kd4 Ra1 Kc4 Rb1 Qca4 c6 Bc5 c7 Qac6 c8B Qb4+ Nc3 Qe7 Bcg4 Qee6 Ra1 Bb1 Ra5 Bed3 Rb5 Qed7 Rb6 Qf3 Re6 Qfc6 Re2 Qbb5 Re6 Kb4 Re5 Ka3 Nd5 Ka2 Re4 Qb4+
2R1nN1r/2rrBbB1/PB1bnRB1/BK1q4/5n2/3N3k/q2N2q1/2rQ1r1b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 g5 Kd3 f5 Kc4 c5 a4 b5+ Kd3 g3 h4 g4 e4 c4+ Kc2 g2 a5 f3 d6 Ke6 e5 b3+ Kc3 f2 Kb4 f4 h5 Kf5 h6 b2 d5 c3 e6 f3 a6 g3 h7 Kg4 e7 c2 e8N Be6 Bg5 c1R Bf4 Nc6+ Kb3 b4 Ka4 b3 d7 Rc8 d6 Nf6 Ra2 Bf7 Bg5 Nd4 Rh5 Ne6 Nc7 Ne8 Nh3 g1R Bd3 f1R Nd2 b1Q Bg6 b2 Rh6 g2 Nf2+ Kg3 Ra1 Qa2+ Kb5 b1B Be7 Be4 Nd3 f2 Rb1 Bb7 Rb2 Rh1 Rc2 g1N Rc6 Nh3 Rc5 Nef4 Ne6 Rc7 Rc2 Qa8 d8B Ng5 d7 Rh4 Rc5 Bh1 Rc2 Kh3 Rc3 Rc4 Ba5 Rc7 d8B Q8d5+ Rc5 Rd7 Bdb6 Rc7 Bf6 Bd6 Nf8 Nge6 Be7 Rg8 h8B Rg7 Rh5 Rh7 Bg7 Rh8 Rf5 R4h7 Qb3 Rg1 Rf6 f1Q Qc2 Qfg2 Qd1 Rf1 Bh6 Bg8 Bd8 Rhd7 Bg7 Ra7 Be7 Rab7 Qb3 Bf7 Qd1 Qdf3 Rc8 Rbc7 Be3 Qa8 Beb6 Q8d5+
1rn3n1/R1r2q2/B1r1QPB1/1RNrB2b/KRq2qr1/B7/2N1kr2/r1b3B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 b4 Kg5 c4 Kf4 Kc2+ e3 Kb3 h5 c5 e5 g5 d5 b6 a5 b7 d3 c6 d2 b5 d4 g6 e2 b6 e1R c7 a4+ Kb2 a3+ Kb3 e4 f3 Ke3 f4 d3 g7 a2 f5 h3 f6 h4 Qh5 h2 Qc5+ Qd4 Be2 h3 Qh5 Nd7 b8B Ba3 b7 Ra7 Qf7 Rf1 Nf3 Rf2 Nc3 Nb6 Ng1 Bg4 c8R Bh5 Rb1 a1R Rf8 Nc8 Bb2 d1R Qd7 d2 Na4 Rc1 Nf3 d1R Ba6 Rc6 Rf7 Qd6 Nd4 Qf4 Rf1 h1Q Nc5 h2 Nc2+ Kf3 Bd6 e3 b8B e2 Bde5 e1R Qe6 Rac7 Ba7 Re4 Rg1 Ra4 Rg5 Qf1 Rd7 h1Q Rg4 Qd2 Rb4 Qf4 Bb6 Rd5 Bc1 Nh6 g8B Qb5 Bh7 Ng8 Rb2 Ke2 Bg6 Qg2 Ba7 Qgg5 Rh7 Qh6 Rd7 Qh7 Rb1 Qf7 Re7 Bb2 Bb6 Bc3 Ba3 Qd3 Rb5 Rad4 Rb4 Qc4+ Ka4 Bd2 Rb3 Bc1 Rb2 Rb7 Rc7 Rb8 Ra7 Rh7 Bb5 Qe4 Nb3 Qc7 Ba6 Rh2 Rb1 Qg4 Rb2 Rf4 Bg1 Rhf2 Nc5 Qg5 Rb3 Rg4 Rb2 Qf4 Rb1 Qd3 Rc4 Qe7 Rd4 Qf8 Rb5 Rhc7 Rc4 Qf7 Rcb4 Qdc4
3k1Nn1/Q1R4R/1N1K3B/3n2rr/1RB3bq/1nbb4/4Pr2/1NrrNnNn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Kc4 f5 Kd5 d3 c4 h3 g4 d2 b4 h2 b6 h4 b7 h3 g5 f3 b5 f2 c5 f4 b6 a4 g6 f3 c6 a3 g7 a2 c7 Na6 b8R Bb4 b7 Qh4 Qa4 d1R+ Ke5 Rh5+ Bg5 Bc3+ Qd4 d5 Bg2 f1R Kd6 f2 Be3 Rc1 Bh6 Nb4 Qa7 d4 Bd5 d3 Be6 d2 Bc4 Ne7 g8N d1R+ Bd2 Rg5 Nh6 Nbd5 Ng4 Ng8 Ne5 Rh5 Bh6 Rg5 Qb6 Ra5 Nef3 Rc5 Qa7 Rb5 Ra8 Rh5 b8N Bg4 c8N Kd8 Nd7 Rg5 Na3 Rc5 Rb1 a1N Rb4 Nb3 Ne1 Rb5 Ngf3 Rc5 Nf8 Rb5 Rg1 h1B Nb1 h2 Rg2 Rh5 Ng1 Ra5 Rg3 Be4 Rh3 h1N Rab8 Bd3 R8b7 Nde7 Rc7 Rag5 Nb6 Nd5 Ngf3 Rg1 Rh2 Rg2 Ng1 f1N Nc2 Rf2 Bg7 Qh3 Ne1 Rh4 Bd4 Re5 Be3 Qg3 Bf4 Rh8 Rh5 Qh4 Rh6 Rh7 Be3 Rg7 Rh7 Rh5 Bh6 Rgg5
1B2NR2/3B2N1/N3Nn2/1K1qR1n1/N1n3P1/3Q1n2/Bbr1qkqb/rb4nn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 f5 c3 h5 e3 a5 b6 d5+ Kb5 a4 b7 a3 c4 f3 c5 h3 c6 h4 c7 a2 Na3 f4 Nb1 d3 Na3 f2 Be2 f1Q Bd2 h2 Nf3 h3 Qb1 d4 Nc4 Nh6 Kb6 Nd7+ Kc6 Qg2 b8N Nf6 b5 Qd5+ Kb6 Bf5 c8N Nf7 Rf1 h1N Ne7 h2 Nd7 Nf2 Nb2 h1N Na4 Nh3 Bc1 Bh7 Nf5 Bd6 Ng7 Rhc8 Ba3 Bb8 Bd6 Nfg5 Qb3 d2 Bc4 d3 Rae1 d1N Nd4 a1B Nde6 f3 Qb1 f2 Ba2 Kf3 e4 d2 e5 Rc4 Qd3+ Ne3 Re2 Nh5 Nf6 d1Q Nfe8 Bb2 Bc7 Ng1 Ree1 Ba7+ Ka5 Bf5 Bb8 Rc2 Kb4 Be4 b6 Qe2 b7 Bc5+ Kb5 Nf6 Bd6 Bg6 b8N Bf5 Na6 Bh7 Bb8 Bd6+ Nec5 Bf5 e6 Bh2 e7 Ra7 Rc1 Be4 Rfe1 f1N Rcd1 Kf2 Rc1 Qg8 Nce6 Nd2 Rcd1 Ndf3 Rc1 Rd2 Rc8 Rc2 Rd8 Nc4 Rc8 Qef1 Rd8 Bh7 Re5 Qe1 Nd6 Qd1 e8B Qe2 Bd7 Bf5 Rf8 Bg6 Nec5 Qd5 Nde8 Rb7+ Nb6 Bc3 Qf5 Rc1 Ka4 Ra1 Nce6 Bh7 Qc2 Bf5 Qd2 Bb1 Qd3 Bd4 Na8 Rb3 Nb6 Rc3 Kb4 Rc2 Na4 Qa8 Kb5 Bb2 Nac7 Qae4 Na6 Qd5+
1nR2rB1/2rN1nq1/b1B1N1B1/1RBnrbB1/6N1/b2Q1r1q/2b1b1PK/4k3 w - - 0 1 illegal: No possible last move, all moves rejected
k4NbB/n2r4/rQ2bNrq/1RBn1r2/B2b4/NN4q1/b1Kb1P1n/1N5R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 b4 Kd7 c4 Kc7 g4 Kb7 c5 a5 g5 e5 g6 h5 g7 d3 b6 e3+ Kc3 d2 b5 d4+ Kd3 a4 Ne2 e4+ Kc2 h3 Bg2 a3 Ng3 h4 Bb2 d3+ Kb3 a2 Bf6 e2 Qf1 d1R Nf5 e1N Nd2 h2 Bd4 h3 Nc4 d2 Rb1 a1R Qg1 R8a6 c6+ Ka8 c7 Nf6 g8N Nd5 Nfe3 R1a5 Na3 Be6 c8N Rh6 Nec2 e3 Nf6 e2 Ne7 Rg6 Nc6 Nf3 Bc5 e1B N6d4 Qc7 Rb2 Bd6 Nb1 Nc6 Nca3 Be5 Kc2 Na7 Nb3 Bd4 Qf1 Qg3 b7+ Kb8 Qc4 Bg8 Qb4 Be6 Rg1 h1B Bf1 Bg2 Rh1 h2 Bd3 Bf1 Bf5 Bg8 Bd7 Bh3 Be8 Bhe6 Bd7 Kc7 b8B+ Kb7 b6 Ka8 Ba4 Rb5 Be5 Rba5 Rf1 h1Q Rg1 Qh6 Rh1 Nc8 Ne8 Nh2 Bh8 Na7 Nf6 Nf4 Bd6 Rf5 Bc5 Nd5 b7+ Kb8 Qc3 Kc7 b8N Kb7 Qe3 Ka8 Nbd7 Rc1+ Kd3 d1B Nf8 Bd2 Ne8 Bh5 Nf6 Rd1 Kc2 Bf3 Nc1 Be2 Rb5 Bf1 Qb3 Bc4 Qb4 Ba2 Nb3 Rg1 Qa5 Rg7 Qb6 Rd7 Nh5 Qge3 Nf6 Rg6 Rc1 Qf3 Rh1 Qg3
5rk1/2qq2n1/1BBnq2b/Bn1rN3/1RQ2qPR/4Nr1R/2K2R2/R4bqn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 a5 c4 h5 e5 a4 b6 f3 c5 d3 c6 d4 b7 f4 b5 f2 c7 a3 b6 h3 Qe2 a2 Na3 h4 Qe1 f3 Bg2 f1R Qg3 f2 Bf3 h2 Qh3 Nh6 e6+ Kg8 e7 Ra5 e8R Nd7 b8B Nf7 b7 Nd6 Re6 Nf6 Bg2 Bh6+ Re3 Nfe8 Bb2 Rd5 Bf3 Ng7 Qg3 h3 Re1 a1Q Rc1 Qa2 Nc4 Bd7 c8R Bb5 Rc6 Qc7 Ba7 Qa6 b8R+ Qac8 Rb7 Qe6 Re1 Ba6 Kc1 d2+ Kc2 d1N Bb6 Nc3 Qf4 Ncb5 Bc3 d3+ Kd2 Nf7 Bca5 Nfd6 Kd1 d2 Kc2 Qf6 Rc3 Qe6 Ra1 d1Q+ Kb2 Qed7 Ne3 Qe6 Qc4 Qd3 Rc2 Qdf5 Be4 Qed7 Nf3 Qfe6 Rg1 h1N Ne5 h2 Rg3 Re1 Re2 f1Q Kc2 Qf4 Rh3 Rf1 Rd2 Rf3 Rf2 Ng3 Rc5 h1Q Rh4 Qg1 Rh3 Rd1 Bc6 Nh1 Rd5 Qef7 Rd3 Qfe6 Rb3 Rd5 Rb4 Kh7 Rb8 Rf8 Re8 Kg8 Re7 Ngf5 Rh7 Ng7 Qb3 Bg5 R7h4 Bh6 Qa4 Na7 Qa2 Bf1 Qc4 Nab5
1qk2qBb/2NN2r1/K2q2nr/PN1b4/2n1Q1BN/1n1nR2N/2q4B/n1rR4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 h5 Kd3 b5 g4 f5 a4 c5 e4 b3 a5 b4 Kc4 b2 Kb5 h3 d6 h2 g5 f3 g6 b3 d5 h4 e5 h3 g7 f2 Ra4 c4 Be2 f1N Bf4 c3 Bf3 c2 Qc1 Na6 Rd4 Nb4 Bd1 Ra7 Re4 Bb7 e6+ Kc8 e7 Rh6 e8B Nd2 Bdh5 Ne7 g8N Bg7 Be2 Nc4 Nd2 b1Q Nf6 b2 Bf7 Ng6 Nd7 Bh8 Qe1 c1N Bg8 Nb3 Ndf3 Qc2 Re3 b1Q Nh4 Qf8 Bg4 Nd3 Bg3 f4 Qb4 f3 Be5 Ncb2 Qe4 f2 Kb6 Ba8 Kb5 Rc7 Ka6 f1N Nf6+ Rd7 Re2 Na1 Re3 Kd8 Bf4 Rc7 d7 Nd2 Be5 Ke7 d8N Nbc4 Nf7 Qbb8 Nd6 Kd8 Nb5 Ndb3 d6 Rg7 d7 Bc6 Ne2 Ba8 Nf4 Bd5 Rg1 h1R Rf1 h2 Nh3 Ke7 d8N Rg1 Ne6 Rh1 Nc5 Kd8 Ne6+ Kc8 Nd7 Rg1 Nec7 Rh1 Rff3 Rd1 Re1 Rc1 Rd1 h1Q Re3 Qhh2 Bd6 Qhf4 Be5 Q4f6+ Bd6 Q6e7 Bh2 Qd6+
2Bbknn1/NB1NP3/nB1b2R1/1bq2Q2/7r/2nN1K2/Rr1b1qB1/n1rB4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 g5 c4 b5 a4 f5 h4 d5 e4 b3 h5 g3+ Kf3 f4 a5 g4+ Ke2 g2 h6 g3 c5 b4 h7 d3+ Kf3 d2 c6 b2 c7 b3 a6 d4 a7 d3 e6 Qd5 e7 Ba6 c8B Bb5 Kg4 f3 e5 f2 Ba6 Nd7 Qe2 d1N Qe1 d2 Rh3 Nc3 Ra2 d1N Ne2 g1B Bc8 g2 Rg3 Na4 Nf4 Nac5 Be3 Rb8 a8B Na6 Qa5 Qc5 Bab7 Nc3 Na3 b1N Kf3 b2 Nd3 Bh6 Rg7 Bh2 Rg6 g1B Bg2 Nf8 Bd4 f1Q+ Bf2 Ba4 Nb5 Na3 Na7 Bd7 Qb5 b1R Qa5 Nc2 Qb5 Kf7 e8B+ Ke7 e6 Rc1 Qb1 Bb5 Bec6 B6f4 Be4 Ke8 e7 Be3 Bed5 Bg5 Bb3 Na1 Bd1 Bd2 Qc2 Qe1 Be3 Bc7 Bf2 Bgh2 Be3 Qa3 Bb6 Bd8 Qb1 Qc5 Qc2 Nh6 Qb1 Bd6 Qc2 Rg8 h8N Rg7 Qb1 Ng8 Nf7 Rh7 Nfe5 Rh4 Nd7 Qcg1 Nb2 Na4 Ba8 Qc5 Qf5 Nc3 Ba5 Bc4 Nd3 Rb2 Bab7 Bb5 Bb6 Qef2+
2bB2b1/3Bn2q/kr2Nn1b/3N1R2/2PQ1b1b/bK2n3/6Nn/B1Rr1bBB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 e4 d5 b6 Kd7 c3 Kc6 Kc2 Kb7 b5 f3 h5 g3 h6 d3+ Kb2 g4 e5 d4 e6 d2 e7 a4 e8B d3 h7 f2 Ra3 f4 Rh5 f3 Bd7 g2 Rh3 g3 Bg4 Qd7 Be6 Nc6 Qb3 d1B Ne2 g1B Bg5 g2 Rh5 d2 Ra1 Bh6 Nf4 Bh2 Qd5 g1B Qd4 Ra6 Bd8 Bb3 Bg2 f1N Rf5 f2 Bh1 Nf6 Ng2 d1N+ Ka3 Bd5 c4 Nde3 Nc3 B2f4 Rc1 Nh2 Kb2 a3+ Kb3 Rf8 h8B Qh7 Bd7 Bg8 Nd5 f1B Bg7 a2 Bh8 Kb8 b7 Rb6 Bg7 Ka7 b8N a1B Na6 Bc3 Nac7 Bb2 Ne6 Bf2 Bh8 Bh4 Bg7 Kb7 Bh8 Ra6 b6 Ne7 Bg7 Ra1 Bh8 Ka6 b7 Ba3 b8B Rf7 Bd6 Rg7 Bb4 Rg3 Be1 Rg6 Bf2 Ra2 Bg7 Rd2 Bg1 Rd1 Qe4 Nfg4 Ba1 Nf6 Qd4 Ne4 Ng5 Rd6 Ne6 Nf6 Ka2 Rc6 Kb3 Rb6+
r2q2r1/3krbn1/3B3n/2nRb2n/rKBq2NR/1bN2PB1/1QR3B1/3q3B w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 c4 d5 g4 e5 b4 h5 b6 h3 c5 d3 Kc3 d2 b5 h2 c6 a4 c7 d4+ Kc4 e3 g5 e2 g6 e1R g7 h4 b7 a3 b6 a2 f3 e4 Kb5 d3 Nc3 h3 Qa4 d1B Bg2 d2 Nce2 e3 Qe4+ Be6 Qd5 Nh6 g8B Nd7 b8R Bg7 b7 Bc3 Rb1 a1R Qb3 R1a4 Rc8 Ba1 Qa2 Bdb3 b8B Bg7 Rb2 d1Q Rc2 Qd4 Nc3 e2 Ba3 Bed5 Be6 Rg8 Qb2 Nf6 Be7 Nh5 Bh4 Bf6 Bf2 Ng7 Bg3 Bb7 Bd5 Kd7 Bf7 Rd1 Bc4 e1N Qb1 Rd2 Qa1 Bd5 Qb2 Ra2 Kb4 Re2 Nd1 R2a5 Ne3 Bf7 Ng4 Ra3 Qc3 Re4 Qb2 Re7 Ne2 Be5 Nc3 Nd3+ Kb5 Nf4 Kb4 Nfh5 Ba7 Be8 Bc5 Bf7 Bd6 R3a6 Rb8 R6a7 Rb5 Ra2 Rg1 h1Q Rd5 h2 Rgc1 Qe1 Ra1 h1N Rd1 Nf2 Rb1 Qee3 Rh1 Qc1 Rh4 Ne4 Bh1 Qcg1 c8B+ Kc6 Nf6 Qgd1 Bh3 Nc5 Ng4 Kd7 B3g2 R2a4+
1k3K2/RqN2rn1/b7/2r1BPNn/1R3b1q/bn3B1B/4q1NN/Q2r1qnN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 f5 Kc7 g5 e3+ Kd3 h3 g6 e2 g7 e1B c5 a4 c6 h2 Bg2 a3 Ne2 a2 Bf4 h4 Nd2 h3 Nf3 Nd7 b6+ Kb8 b7 Ra7 b5 Ba3 Nh4 Ndf6 Ng3 Bd2 Bf1 Be3 Ng2 Ne8 Qc1 Ngf6 g8N Qd7 Nh6 Nh5 Nf7 Neg7 Ng5 Qc7 Rb1 a1N Rb4 Nb3 Qa1 Ra5 Rg1 Rf8 Nh1 Rf7 Bg3 Qd8 Bf4 Qf6 Bg3 Bf4 c7+ Ka7 b8N Ba6 c8B e4+ Kc2 e3 Kd3 e2 Bb7 e1Q Nd7 Qfe7 Nf6 Kb8 Bc6 Qb7 Ng4 Qe6 Nhf2 h1N Nh2 Be5 Bf4 N1g3 Nh1 Bc7 Be5 Ne2 Rc4 Qe7 b6 Rb5 Rb4 Qf6 Ne6 Qh4 Ng5 Bd6 Bf6 Bf4 Be5+ Qc7 b7 Rc5+ Rb5 Ka7 b8N Qb7 Nd7 Ka8 Nf6 Ka7 Ne8 Ka8 Ng4 h2 Nc7+ Ka7 Nhf2 h1Q Nh2 Rc4 Rb4 Kb8 Ne1 Qg2 Nh1 Qgg4 Rg2 Ng1 Rf2 Qg2 Ra2 Qb2 Bh3 Rc5+ Rc4 Qbf2 Ng2 Qf3+ Kc2 d3+ Kc3 Na5 Kd4 d2 Rb4 Qf1 Ba4 Qe2 Bd1 Qf1 Bf3 d1Q+ Rd2 Qde2 Ra2 Bd2+ Bf4 Be3+ Ke5 d4+ Kd6 d3 Bg3 d2 Be5 Bb2 Ra3 Nb3 Raa4 Bf4 Ra3 Rf6+ Ke7 d1R Raa4 Ba3 Ra5 Rfd6 Kf8 Rd7 Raa4 Bc4 Ra7 Ba6 Ra4 Re7 Rb4 Rf7+
1K5q/N3rb1k/RN4q1/R3PRBB/n1rnq3/2b2N2/NN1n3n/1bb3Qr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 Kg7 e4 a5 c5 f3 c6 a4 b6 a3 c7 h3 g5 f4 g6 h4 b5 h2 b7 h3 b6 a2 e5 f2 Bd2 f3 Bf4 Nd7 b8R Ne7 b7 Ra7 Ra8 Nc5+ Kd2 d3 Ke3 d4+ Kd2 Rh4 b8N Na4 Qb3 Bf5 c8N Nc6 Be2 Ba3 Na6 Qh8 Qb6 Re7 Nb4 Rg4 Bg5 f1N+ Kd1 d2 Nd3 f2 Kc2 d1R Kb3 Bc1 Kc4 Nd2+ Kd5 f1N Nb2 d3 Kd6 Rc4 Na7 Nd4 Nf3 Qe8 Rg1 h1Q Nc3 Nh2 Rf1 Qh8 Qc5 Qg2 Rf2 Rh1 Bd1 Bd7 Kc7 Be8+ Kb8 Kg8 g7 Kh7 g8N Bf7 Bh4 Qg6 Bg5 Nb1 Rf1 d2 Be2 d1B Qb6 Nb5 Qg1 Bc2 Bd1 Nd4 Be2 Qhg7 Bd1 Nd2 Nf6+ Kh8 Rf2 Bb1 Nfd5 Kh7 Nb6 Q7h6 Nab5 Qh4 Ra5 Qhe4 Na7 Bd3 Rb1 a1B Na2 Bc2 Nd3 Bc3 Ra1 Bb1 Nb2 Kg7 Ne1 Kh7 Bh5 Nhf1 Rf5 h2 Qe3 Rg1 Qg3 h1Q Nf3 Qh3 Ra6 Rh1 Qg1 Nh2 Nb4 Nc5 R1a5 Na4 Na2 Qhh4 Bh6 Qhf6 Bg5 Qh8+
2kq2r1/1n1R3N/1bbq3b/rPN1nN1N/1q1Q1n2/r3KRn1/1B2R2N/1B2r3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 a5 c4 f5 g4 h5 e5 f3 c5 h3 g5 f2 g6 a4 b6 h2 g7 d3 b5 f4 b7 a3 Bb2 d4 Bg2 f1N+ Kc1 a2 Be4 d2+ Kc2 f3 Kd3 f2 Bc3 h4 Ke2 d3+ Kf3 h3 Na3 Nh6 g8N Nf7 Rc1 a1B Bg6 Ne3 Nc2 f1N Bb2 Nd5 Ne3 Ng3 Rc3 Nd6 Nf5 Nf4 Ke3 Ra5 Nf3 Nc6 Re1 h1R Re2 Bh6 Nh2 Re1 b8N+ Kc7 e6 Ne5 e7 Bb7 e8N+ Kc8 Nd7 Bc6 Ngf6 Nb7 Bh7 Rg8 Neg7 Ra3 Qa4 d1R Ngh5 d2 Qd4 Rb1 Bg6 d1Q Nh7 Rc1 Rb3 Rc4 Rc3 Rca4 Rd3 Ra5 Rb3 Bh1 c6 Bg2 c7 Bc6 Rd3 Qb3 Nc5 Qb4 Bf7 Qd6 Ba2 Qd8 Bb1 Qd6 Ng4 h2 Rb3 h1Q Rd3 Qh4 Nh2 Ra2 Rd1 Rg1 Rf1 Qhd8 Rf3 Re1 Na6 Kd7 c8R R2a4 Ra8 Ra2 Ra7 Kc8 Nc5 R2a4 Ba3 Bc3 Bc1 Ra3 Bb2 Qa4 Qe4 Qb4 Nb3 Nc5 Rd7 Nb7 Qd3 Qc4 Qd2 Bb4 Qd4 Bc5 Kd2 Bb6 Nc5 Ra2 Ke3 Qb4 Nhg7 R2a4 Nh5 Ra3+
3bQ2B/5R1b/1Rnq4/rnN2n1k/3br1Rb/RR1BP3/2nnNBK1/rn6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 c4 g5 b4 f5 h4 Kf7 b6 Kg6 b7 d5 b5 g3+ Kf3 g2 b6 d3 c5 d2 c6 a4 c7 g4+ Kf2 a3 Bb2 d4 Rh2 d3 Rh1 a2 Ba3 f3 Rh2 f4 Nh3 Qd6 Bc1 Ra5 Qc2 d1N+ Kg1 Bf5 c8R d2 Qb3 Kh5 Rc5 Nc3 Rc4 d1N Ba3 Be7 Nd2 Ne3 Bb4 Nb5 Bc5 Nc6 b8R Bd8 b7 Bh7 Qa4 Nge7 Ne4 Nc2 Bf2 Re8 Nc5 Nf5 Rh1 Re6 e3 Re4 Kh2 g1R Bd3 Rd1 Ng1 g3+ Kh3 g2 Ne2 g1B Rd4 Bh2 Rf1 Bg3 Rb4 Rb1 Rb3 Re1 Ra8 Rd1 b8R Rc1 Rab1 a1B Rb6 Bd4 Ra1 Re1 Raa3 Ra1 Ra7 Bb2 Rf7 Bd4 Be1 f2 Rg1 f1N Kg2 Nd2 Bf2 Kh6 h5 f3+ Kh1 Kg5 h6 Nb1 Rg2 Kh5 Rg1 Bg8 h7 Bgh4 h8B Bh7 Rg8 Qe7 Rg4 Qd6 Bg1 f2 Kg2 f1N Bf2 Nc7 Qb5 Nfd2 Qa4 N6b4 Qd7 Nb5 Qe8 Nc6
1n1q1nK1/B4bQ1/4Bq2/R4r2/RN1Nbq1P/4n1pb/1kb1rb1N/N3NB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 h4 Kd5 e3 g5 c3 f5 b6 a5 b7 g3+ Kf3 g2 b5 a4 b6 g4+ Ke2 Kc4 e4 d5 e5 f3+ Kf2+ d3 Kg3 d4 Kf4 g3 e6 f2 Ke5 f4 e7 f3 e8N a3 Bf4 a2 Be3 Ne7 Kf6 Bf5 Kf7 Be4 Nf6 Ra5 Ng4 Ng6 Nh2 Bc5 Qc1 Kb3 c4 d2 Na3 d1N Nc2 d3 Qb2+ Ka4 Qd4 Kb3 Qg7 Re8 Bd4 Nf8 Kg8 d2 Be3 Bd4 c5 Kb2 c6 Rd5 c7 Rf5 c8B Re7 Be6 Re8 Ne2 g1Q Nc1 Qg2 Nb3 Qh3 Ne1 Qg4 Rc1 a1Q Rc5 Qf4 Rd5 Qa6 Ra5 Re7 Na1 Re8 Bd3 f1B Bf2 Bh3 Bf1 Ne3 Bg1 Nbd7 b8N d1B b7 f2 Nc6 Bdc2 b8N Qab6 Na6 Nb8 Nab4 Re7 Bfc4 f1B Bf2 Bfg2 Bf1 Bgf3 Rg1 Bh5 Rg2 Re8 Bg1 Qf6 Rd2 Bc5 Nd4 Qbd8 Rd3 Re7 Rda3 Ba7 R3a4 Bf7+ Kh8 Rc7 Bf2 Rc3 Bg1 Rd3 Bf2 Rd2 Bg1 Re2 Bf2 Bh5 Kg8 Be8 Bg1 Bf7+ Kh8 Bed3 Ndf3 Nd5 Bc5 Be4 Bf2 Bd4 Be3 Bc3 Ba7 Bd2 Nd4 Be3 Nbc6 Bf2 Nb4 Bh5 Kg8 Ne3 Nef3 Bg6 Ne1 Bf7+
B3B1bb/2n1Qq1N/5B1N/6B1/1BKprr2/1Rn2qRq/1P1Nr1nr/4k1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 c4 Kf5 h4 a5 c5 g5 c6 d5 h5 f3 b6 f2 c7 g3 b7 Kg4 h6 f5 h7 g2 e4+ Kg3 e5 f4 e6 f3 e7 a4 e8B g4 Bh6 a3 Rh2 a2 Qa4 Bg7 Qa6 Nf6 Bc6 Ne4 Rh5 Be6 c8N Qg8 Rg5 Nc3 Qa5 Na6 b8B+ Nc7 Ba7 Qf7 Nh3 g1N Na3 Nge2 Rd1 a1R Qc5 Nf4+ Kd2 d3 Qd6 d4 Qe7 Ng2 Nd6 Rae8 Nb1 Bd5 Be2 f1Q Bc5 f2 Bb4 Qh1 Rc1 f1R Ba8 Rf4 Bf3 Bc4 Bfc6 Ra5 Rg6 Re5 Ng5 Kf2 Nf5 g3 Re1 Ree4 Re3 Qh3 Ba4 Rhf8 h8B Be5 Bf6 Rh8 Nh7 Kf1 Kc1 d2+ Kc2 Be6 Kd3 d1Q+ Nd2+ Kf2 Bhg5 Qf3 Kc2 Bd5 Rd3 Re2 Re3 Ke1 Kd3 Be6 Nf8 Rhh4 Nh7 Rh8 Be8 Re4 Rg8 Rhf4 Nf8 Rh5 Nh6 Bd5 Nh7 Be6 Bh4 Bd5 Bfg5 Bh8 Bf6 Be6 Bhg5 Qg6 Nc4 Qh1 Na5 Nh4 Nf7 g2 Nc4 g1R Nh6 Ng2 Nd2 N3d5 Kc4 Rhh4 Rg7 Bg8 Rb3 Qf7 Rg6 Rh3 Rg7 Qh2 Bh4+ Qhg3 Rg4 Rh2 Bhg5 Qh3 Rg3 Nc3+
n1q1b2R/b1b3R1/3B2B1/3rQ1qK/1bPn3p/B1qr1bBk/3n3N/N1NB4 w - - 0 1 illegal: No possible last move
1BqN4/qr6/4Rq1b/1B2B1kb/P2K3b/NRp1n3/2B1QnB1/rrR2b1b w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Ke7 g4 f5 e4 c5 d4 h5 g6 Kf6 a3 b5 g7 h4 e5+ Kg5 e6 b3 e7 h3 e8B b4 d5 b2 d6 c3 d7 c4 Bd2 h2 Qe1 c2 Qd1 c1B Nc3 b1R Na2 c3 Ne2 b3 Nd4 b2 Nb4 Be7 Nbc2 Nh6 g8B Nc6 Bh7 Na5 Nc6 Nc4 Qe2 Ne3 Bg2 f3 Re1 h1B a4 f4 Be4 Ra7 Na3 Rb7 Bc2 Qb6 d8B Qa7 Bc7 Bf5 Be4 Bg6 Nd8 Bh5 Bb8 Rf8 B4g6 Rf6 Bb5 Rfb6 Ra2 Ra1 Bc2 b1Q Rb2 Qa2 Be5 Qc4 Rb3 Qc8 Rd1 Kh4 g5 Nhg4+ Ke1 Nf2 g6 Kg4 g7 Bh4 Bb8 Kg5 g8R+ Kf6 Re8 Kg5 Nc4 Ba3 Re6 Bf8 Rc1 Bg7 Be8 Rb4 Bb5 Bh6 Ra3 Rbb1 Rb3 Ned1 Kf1 Ne3+ Kg1 Nd3 Na3 f2+ Kh2 f1B Kg1 f3 Be1 Bg4 Beg3 Bh5 Bge5 f2+ Kh2 Nd5 Qf3 Be2 Qe4 f1Q Qe3+ Qf4+ Kg1 Bf1 Qf2 Ne3 Qe2 Qf6 Bg3 Nf4 Kf2 Ng4+ Kf3 Nh3+ Ke4 Ne3 Bge5 Qa8 Kd3 Nf2+ Kd4 Qa7+
nBqBq1n1/3r3k/6R1/B1Q2Bp1/R2q1RP1/NN2Br1b/2r5/qbn3Kq w - - 0 1 illegal: No possible last move, all moves rejected
bR6/K1N5/n2q2nq/2nq1Pp1/N1b2kNq/1BBB1r1R/Q4bq1/3B1Br1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 Ke3 Ke6 Kd4 Kf5 c4 g5 a4 d5 h4 b5 f4 e5+ Ke3 b3 c6 b2 c5 g3 c7 b4 a5 b3 c6 g2 a6 Qd6 a7 Ba6 h5 Bc4 h6 Na6 h7 Ne7 Qc2 Ng6 Nc3 b1B Nf3 b2 Nh2 g1Q+ Qf2 Rb8 a8B Qg2 Bd2 Rb3 Ng4 Bc2 Bd3 b1Q Rh3 Qbh1 Rb1 Be7 Na4 d4+ Ke2 Qd5 Bc3 Bc5 Bb7 Re8 h8N Bd1+ Kd2 Bf3 c8B+ Re6 Bf1 d3 c7 Ba7 Qe2 Bf2 Nf7 Ra3 Nd8 e3+ Kd1 d2 Kc2 Qd6 Bd5 e4 Rb8 d1Q+ Kb2 Ra1 Bd7 Rc1 Bb5 Rf6 Ne6 Rf8 Qc2 e2 c8B e1N Qb1 Qd3 Qa2 e3 Bcd7 e2 Nc7+ Qe6 B7c6 Qd6 Bg8 Q6d5 Ka3 Qd2 Bf7 Nd3 Bg8 e1Q Be8 Nge5 Bh5 Ndc5 Be6+ Ke4 Bef7 Ng6 f5 Kf4 Bd3 Re8 Bg8 Re3 Bf1 Bce2 Bd3 Qd6 Be6 Ba8 Bb3 Rf3 Rc8 Nb8 Kb4 Nba6+ Kb5 Qd5 Kb6 Rd1 Bb1 Bc4 Rb8 Qd6+ Ka7 Q2d5 Bbd3 Qee6 Rg3 Qh4 Rh3 Qf6 Bfe2 Rg1 Bf1 Qh8 Nh2 Rg3 Bhd1 Rf3 Ng4 Q8h6
6rQ/3b1Nn1/B1Br1qnR/3PB1r1/1r2Kbk1/1p3N2/3bB1rq/2BNR2q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 h5 a4 f5 e4 c5 d4 b5 g4 b3 a5 b4 a6 b2 g5 h3 e5 h4 d6 Ke6 d7 c4 g6 h2 g7 h3 a7 c3 Ba6 c2 Qe1 Nh6 g8N Bd6 Ra5 Qf6 d8B Nc6 Na3 b1R Bb5 Bd7 Bb6 Rd8 a8B Ne7 Qe2 Ng6 Bb2 c1B Qd3 Bd2 Qe3 b3 Bc3 Rb2 Be2 Rb8 Ba7 Rb4 Nb5 Ra2 Ra6 Ra5 Ne7 Rg8 Bc6 Bc7 Nc8 Bd6 Kf2 f3 Kg3 f2 Kf3 f4 d5+ Kf5 e6 Ra2 e7 f1R+ Qf2 Kg5 e8B Nf5 Be3 Ng7 Be5 Rc1 Bb7 Rc6 Nc3 Bc7 Qe1 Rd6 Qa1 Kf5 Nd1 Bb8 Kf2 f3 Rc6 Rc2 Bba6 Rb2 Kg3 f2 Nf3 f1R B3f4 Rf2 Re1 h1Q Be3 h2 Bg5 Bc3 Bc1 Bd2 Rb6 Rc2 Qd4 Rcc4 Qh4 Rc2 Qh8 Rf1 Rc6 Rg1+ Kf2 Kg4 Rb6 Bc3 Ke3 Bd2+ Kd3 Qg2 Rc6 h1Q Rb6 Re6 Nd6 Qgh2 Nf7 Rd6 Rc6 Rg2 Rb6 Rcc4 Rc6 Rf4 Rb6 Rf5 Rc6 Rb5 Ke4 Rg5 Rb6 Bc8 Bc6 Bd7 Nb2 Bc7 Nd1 Rb4+ Kd3 Re6 Ba1 Qff4 Ba8 Nf8 Rd6 Rh6 Bc6 Qe5 Rg6 Qe7 Re6 Bcf4 Be5 Qd8 Re8 Rd6 Re6 Qe7 Rg6 Qf6 Rh6 Rb7 Kd4 Ng6 Ke4 Rb4+
kr5n/2BbB1Nr/1nr1R1Nb/Pn1Qn2N/B2R4/2q2B1q/7p/1nqBK3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 e4 h5 g4 b5 a4 c5 a5 Kc7 e5 Kb7 d6 f5 g5 h3 g6 h2 e6 c4 e7 c3 e8B f3 d5 c2 d7 h4 d6 h3 g7 f2+ Kd2 b3 Qe1 f4 Bf7 b4 Na3 f3 B7c4 b2 Qe4+ Nc6 Qe8 b3 Bg2 f1N+ Ke1 b1N Qe5 b2 Bb3 Nfd2 Ne2 Nh6 g8B Nf7 Qd5 Ra6 Nf4 Qc7 d8B Bd7 Ba4 Bh6 Nc4 Ka8 Nh5 Nc3 Ne5 b1N Ng6 Nc4 Bcg5 Nb5 Bge7 c1Q+ Bd1 Qc8 Ra4 Nb6 Bc7 Rh7 Rg1 h1Q Rd4 Nh8 Bf7 h2 Be8 Qc2 Rf1 Qf5 Rg1 Qh3 Rf1 Qg1 Bh1 Qgg3+ Rf2 Qg5 Re2 Qc1 Re6 f2+ Ke2 f1R Bf3 Rf2+ Ke1 Qb8 Ngf4 Rb2 Ng6 Bc8 d7 Rb4 d8N Bd7 Nb7 Ne5 Nd6+ Qb7 Nf5 Qbc6 Bcd8 Ra7 Nfg7 Rc7 Qa2 Rc8 Bc7 Rb8 Qg2 Rc4 Qg5 Qd5 Qd2 Rc6 Qa2 Qdc5 Qd5 Q5c4 Rg4 Nd4 Nf5 Bc8 Qb5 Qc5 Re4 Rd6 Nfg7 Q5a3 Qd3 Qb4+ Qd2 Qbc3 Ba4 Nb5 Rg4+ Rc6 Rc4 Q3c2 Qd5 Bd7 Rd4 Qc3+
b2n4/kqBNb2N/2B1B2P/1qb1r3/1qNQrn2/1N3n1K/3pN3/3R1bRb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 Kg2 a5 e4 g5 b4 d5 h4 Kd7 c4 Kc7 c5 Kb7 b6 f3+ Kg3 f2 e5 a4 b5 f4+ Kg2 f3+ Kh2 d3 h5 d4 h6 d2 e6 a3 e7 a2 e8B d3 Qc2 d1B Bf7 d2 Na3 Nf6 Rb1 a1Q Bd3 f1Q Rb3 f2 Bb2 Qd6+ Be5 Bf3 Be4+ Nd5 Bg8 Qab1 Qd3 Be7 Nc4 Nc6 Ne2 Nf4 Rg1 Ng2 Be6 g3+ Kh3 Re8 Qd4 Ra4 Na5+ Kb8 b7 Nd8 Rc3 Ka7 b8N Bb7 Bc6 Ba8 Nd7 Qb4 Nf6 Qc7 Rc2 Qb7 Nb3 Qb1 Rcc1 f1B Rd1 Bd5 Kg4 Qb2 Nh7 Ra5 Kh5 g4 b6+ Ka6 Bf5 Nh4 Rh1 g2 Qf2 g1N Nbc1 g3 Ba4 g2 c6 Q4d4 c7 Bg5 c8N Qc7 b7 Qe7 Nb6 Ka7 b8N Qb7 Bh3 Rc5 Bc6 Qb5 Bc8 Qdb4 Nb3 Rc4 Bc7 Re5 Bf5 Be7 N8d7 Be4 Kg4 Bf3+ Kg3 Rce4 Na1 Nh3 Qc5 g1B Nb3 Nf4 Be6 B3g2 Qd5 Nf3 Nc4 Bgc5 Rg1 Bh1 Qd4 Ng2 Kh3 Nf4+
1RR2n1B/4k2b/1Q1Npbb1/5qn1/r6B/r3NN1q/2BNPrr1/1K1N1n1r w - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 g5 f4 d5 b4 h5 c4 a5 Kc2 d3+ Kb2 d4 f5 h2 b6 a4 f6 d2 b7 g4 c5 a3+ Kc2 a2 b5 h4 b6 h3 c6 g3 c7 g2 Nf3 g1R Bb2 Qd7 Bg2 Ra3 Nc3 Nh6 Rc1 Bg7 f7+ Kf8 Qe1 d1N Nd2 a1R Qf2 Qf5+ Be4 Nd7 b8N Bf6 b7 Rg2 Na6 e6 b8B Bb7 Rg1 h1Q c8N h2 Nd6 Ke7 f8N Nf7 Nh7 Rf8 Nc7 Ng5 Bd3 R1a2 Kb1 Be4 Bc2 d3 Qb6 Ne3 Nd1 Nf1 Be5 Rf7 Ba1 Nf8 Nd5+ Kd7 N5e3 Ke7 Be5 Ra4 Bb2 R2a3 Bc3 Qb5+ Bb2 Bg6 Bc7 Qf5 Be5 Ne4 Ng5 Bh7 Ngf3 Ng5 Bg3 Bg6 Bh4 Bh7 Nb3 d2 Bb8 Rf2 Rg4 Rg7 Rc4 Qg2 Rc8 h1R Ba7 Qgh3 Rb8 Rg4 Qc6 Rc4 Bd4 Rca4 Qb6 Bg6 Bd3 Bh7 Rcc8 Bg6 Bc2 Rg8 Nc3 d1B Nbd2 Bh7 Be4 Bb3 Ncd1 Bc4 Bc3 Bb5 Bc2 Be8 Be5 Beg6 Bf4 Bc3 Be5 Ba1 Bg7 Bf6 Bh8 Nf7 Rc4 Bh5 Rc6 Rgg2 Rc4 Ng5 Rcc8 B5g6
3k4/4qqN1/qP6/N1Bnp2R/R7/nNRB1bKR/n1bq2q1/Q2r1Rbr w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 d5 g4 e3+ Kf3 e2 g5 e1N+ Kf2 d3 c5 d4 c6 d2 b6 d3 g6 a4 g7 a3 f5 a2 b7 h3 b5 h4 f6 h2 c7 h3 b6 Bf5 c8N Qe7 f7+ Kd8 Nf3 Nc2 Na7 Na3 Qe1 d1Q Qe2 d2 Qa6 Nf6 g8R Nd5 Nh4 Nc6 Bd3 Ncb4 Rg5 Qe2+ Kg3 d1Q Be3 Qdd2 Bc5 Rh5 Rc1 h1B Rc3 h2 Qa4 Rh6 Rh5 Bf3 Qa5 Bh7 Nf5 h1Q Ng7 Qhf1 Qa6 Rc8 b8R Bhe4 Rb7 Rc7 Rh3 Rd7 Rc7 Bf5 Rc6 Rh8 Rch6 Rd6 R6h5 Bh7 Bb5 Bc2 Bd3 Rd7 Nf5 Bh6 Ng7 Be3 Qa5 Bg1 f8R+ Qe8 Rf4 Qe7 Rfc4 Bg2 Qa6 Qff7 Rf4 Rd6 Rf1 Bf3 Nc6+ Kd7 Na5 Kd8 Rc4 Rh7 Nc3 Rd7 Ne4 Rh8 Rac1 a1Q Qa7 Na2 Ra4 Bb3 Rcc4 Bc2 Rc3 Qh6 Rac4 Nb1 Nc6+ Kc8 Rd4 Nc1 R5h4 Qa3 Nd2 Ne3 Bg6 Qa1 Qa3 Rd6 Qb2 Qaa6 Nb3 Na2 Rh2 Na3 Ra4 Rd1 Nca5 Nd5 Bd3 Kd8 Qa1 Qhd2 Rh1 Rh6 R1h2 Rf6 Rh7 Rf4 R7h5 Rh4 Rhf2 Rh1 Rfh2 Qf5 R2h4 Qff7 Rh3 Qg2#
1bB2B2/rN5P/4nq1R/br4b1/nRR1NbnB/r1p4k/B7/Q1B1Kq1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Ke6 d4 a5 h4 f5 b6 g5 h5 c5 e5 f3 b5 f4 d5+ Kf5 e6 f2+ Kd2 c3+ Ke2 c4 d6 a4 b7 a3 d7 g3 h6 Kg4 h7 c2 b6 f3+ Kd2 a2 e7 c3+ Ke3 g2 e8B Ra3 Kd3 Nf6 Qd2 Ne4 Ne2 g1B Bb2 c1B Bf7 Nc5+ Ke3 Nc6 b8B Bh6 b7 Qf6 d8B Nd4 Bc4 Bh2 Bbc7 Na4 b8R Bb7 Nf4 Ne6 Nd3 Bd6 Be2 f1N+ Kf2 Nh2 Nc5 Kh3 Ke1 g4 Qd1 g3 Nd2 g2 Nde4 Bcg5 Bc1 g1B Be7 Bgf4 Bf8 Bhg5 Bd8 Bc7 Ba6 Ba5 Bec4 Bd4 Rc8 Bde5 Rb1 a1R Rb4 Bb8 Ba2 Bd5 Nb7 f2+ Ke2 Rg8 Rcc4 Rg7 Qe1 f1Q+ Kd1 Rc7 Bde7 Rc5 Bd8 Kg2 Bde7 Ng4 Rh6 Qh1 Ke2 Rb5 Qd1 Qh3 Ke1 Bc6 Nbd6 Qd3 Bc8 Qh3 Nb7 Kh2 Nf2 Bh1 Ne4 Kg2 Bc5 Qd3 Bf2 Qf3 Bh4 Kh3 Rc7 Qd3 Rcc4 Bd8 Bb3 Nb2 Rc5 Ra7 Qc2 Bdc7 Rcc4 R1a3 Qb1 Ba5 Ba2 Na4 Qa1 Qf1+
1rR1B2B/qRNr1n1p/1Q1r1b2/nK5P/nr1N3B/1r3qb1/6bk/2N2B1B w - - 0 1 illegal: No possible last move, all moves rejected
q4rnN/Pb2b1r1/2bN1k2/B2p2q1/1RK1Qnb1/b3RR2/2R1Bn2/3qB2R w - - 0 1 illegal: No possible last move, all moves rejected
4b3/4p3/n1n1nB2/3KQB1B/n1r2b2/N4B2/PNnR1br1/qnknRR1B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 g4 Ke6 f4 Kd5 g6 h5 f5 b5 f6 d3 Ke3 Kc4 f7 d5 g5 h4 g7 b3 g6 h3 c3 h2 Qh5 b2 Qh6 d4+ Kf4 e3 Ke4 e2 Bg5 e1B Qh5 b4 Qh4 b3 Bh6 Nf6+ Ke5 Rg8 Ne2 d2 Qg4 Kd3 c4 Kc2 c5 d1N c6 d3 c7 d2 Nbc3 b1N Qd7 b2 Qd4 Bf2 Bg2 Ne8 Nc1 Na3 Nb1 Nc3 Rd1 h1N Nd3 Na6 Bg5 Na4 Bf6 Bd7 c8B Nec7 Bf3 Be8 Bf5 Ne6 Rf1 Qb8+ Kd5 d1N Qe5 Ng3 Bh5 Ne2 Bf3 Rh8 g8B Bh6 f8R Bf4 g7 Rh2 Bf7 N2d4 g8B Nc6 B7h5 Rg2 Bgh7 Qb4 B5e4 Qd2 Bhf5 Qc1 Rg8 Rc8 Rg3 Nc4 Na3+ Kd2 Rh3 b1N Nb2 Qc3 Re1 Kc1 Rhh1 Rc7 Rhf1 Rc8 Re2 Rc7 Rd2 Rc8 Nb5 Na3 Re1 Nc2 Na3 Ncb8 Rf1 Rc4 Re1 Nc6 Rf1 Rg7 Bh1 Rg8 Bef3 Rg2 Bf7 Re4 Rd3 Rc4 Re3 Kd2 Nd3 Ndb2 B7h5 Ne1 Nb5 Nc2 Ree1 Nba3 Rac1 Nb1 Na3 N2d4 Qd6 Nd1 Qe5 Qa1 Nb2 Bh4 Rc3 Bf2 Rd3+ Kc1 Rd2 Nc2
N3nR2/1R1q1QBq/KNNn3n/2kB1R2/3b2Pn/1b4r1/1pNN3r/1rb3q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 Kd3 h5 Kc4 c5 Kb5 f5 g4 h3 e4 h4 a4 b3 a5 c4 a6 b2 a7 f3 Rh2 f2 Bd2 c3 Nf3 c2 Bc1 f4 Bd3 f1Q Rf2 h2 Nfd2 h1N Nb3 f3 Be2 h3 Be3 c1B Bh6 h2 Bg7 Nd7 N1d2 b1R Bc4 Qg1 Qf1 Nh6 Ra3 Rb8 a8N Nf6 Nb6 Be6 Ra7 Ne8 Ka5 Rh7 Na1 Ng3 Nc2 h1Q Ba2 Ngf5 e5+ Ke7 Bb3 Nh4 Kb5 Bg8 e6 Kd6 e7 Qd7+ Ka5 Rc8 Ba2 Rc3 Bc4 Kc7 d6+ Kc6 d5+ Kc5 Ba2 Nc7 e8N Re3 Na8 b5 Nf6 b4 Rb7 Ne8 Bc4 b3 Ka6 b2 Bb3 Qe7 d7 Rc3 d8R Qd7 d6 Be7 Re2 f2 Bd5 Rg3 Re5 Bf7 Rf5 Rh8 Qg2 f1N Qf2+ Ne3 Qf4 Nc4 Rdb8 Qc7 d7 Ncd6 d8N Qd7 Nc6 Qhh2 Qe5 Bd8 Qe6 Bb6 Qe7 Be6 Qf7 Ng2 Nh5 Ng8 Nc4 Nef6 Nd8 Ba5 Ncb6 Bc3 Nc6 Bd4 Rf8 Nfe8 Nf6 Qh3 Bf3+ Bd5 Ne5 Bb3 Bd5 Qh6 Nc6 Qg6 N6b4 Rh2 Nc6 Nh4 Nh7 Qde6 Ng5 Qh7 Nf3 Nh6 Nd2 Qd7
BKn3Nq/3nb2R/k4Nb1/brB1B1qq/rR1Q1p1n/1NN5/P5N1/4rn2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 h5 Ke4 c5 Ke5 Kc7 g4 Kb6 e4 f5 d4 h3 g5 c4 d6 c3 g6 h2 g7 h4 d5 f3 d7 f4 d6 b3 Na3 h3 Nc4+ Ka6 Be2 b5 Ke6 b2 e5 b1N Nb6 f2 Kd5 f1N e6 c2 e7 Nbd2 e8N Nf3 Qd4 Be7 Na4 Nh4 Bb2 c1B Nf6 Bd2 Nf3 Ba5 Nc3 Rh5+ Ke6 Bb7 Ne1 Be4 Rb1 Bg6 Bf3 b4 Ng2 b3 Ba1 Ra7 Ba8 Rf5 Bb2 Rb5 Ba3 b2 Bc5 Nc6 Kd5 Nb4+ Ke6 Nd5 Ke5 Nh6 g8N Nb6 Ke6 N6f5 Ke5 Qf8 d8N Qh6 d7 Qg5 Nb7 Nd6+ Ke6 Ndc8 d8B Nf5 Bc7 Nh4 Rg1 h1Q Be5 Nh2 Rge1 Nf1 Re3 h2 Rh3 Nf3 Rh7 Nh4 Re1 b1R Re4 Nd7 Kd5 Ndb6+ Kc6 Rd1 Kc7 Re1 Ne3 Qf3 Ng2 h1Q Kb8 Qhh3 Qd8 Qfh5 Rb4 Qe6 Qd7 Qf7 Qd4 Qg7 Nd6 Qh8 Nc4 Rd7 Nd2 Rd5 Rc4 Rb4 Nb3 Ra4 Ba3 Rb5 Bc5 Bc2 Rb4 Bf5 Qd6 Bg6 Qd4 Nd7+
2bKR2N/b4nr1/1R2QrN1/R2bB3/1pBR2r1/3q3n/r1RqPNk1/5q1n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 b3 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 Kg3 a5 h5 a6 b5 a7 c5 d6 f5 d7 h3 Ke6 b2 d5 h2 d6 c4 Qb3+ c3 Qb4 h4 Nh3 c2 Be3 c1R Na3 b1Q Ra2 f3 Qb3 f4 Nc4 f2 Bd4+ f3 Ne5 b4 Qd5 Qb3 Rc2 Nh6 Nf7 Rh7 Nh8 Qg5 Be5+ Qf4 Rg1 h1B Qc4 Kh2 g3 Rb1 Bg2 Nc6 Rd1 f1R Rd4 f2 Bd5 Qfe3 Kf6 Qbd3 d8R Rb7 d7 Bc5 Re8 Ne7 d8R Ng6 Rd6 Qed2 Qa6 Rg1 Bc4 Nf4 Qc6 Rb6 Ke7 Bd5 Kd8 Rb7 Qd7 Rbf1 Qe6 Rf7 Ra6 Rf6 Rc6 Rg2 Rd6 Rfg1 Ra6 f1Q Nf2 Rb8 a8R Nf7+ Kc7 Rb5 Rb8 Ba7 Rbb6 Nd6 Kd8 Ra5 g4 Ra4 g5 h3 g6 Ra2 g7 Rg3 g8N Rg7 Ra4 R1g4 Ne7 Kg2 Neg6 Nf7+ Kc7 h2 Nh1 Qb1 Nf2 h1N Ra3 Nh3 Ra5 Ba6 Kd7 Qf1 Ke7 Bab7 Kd7 Bc8+ Kc7 Nh6+ Kd8 Nf7+
1n1qk3/5N1n/bB1RpBNN/1bqr1rn1/1rN3q1/2B2r2/1b2PR2/1K1Q2N1 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 Kd2 g5 b4 a5 f4 d5 h4 a4 c4 g3 Kc2 e6 c5 g4 f5 a3 c6 a2 h5 Be7 f6 Bc5 b6 Ra5 b5 Ba6 c7 Ba3 c8N Bb2 h6 Rh7 b7 Rf7 h7 d3+ Kd2 d4 h8N Ra4 b6 Rb4 Na3 Rf8 Rb1 a1R Nc4 Ra5 Ne7 Rf5 Nf7 Rf3 Rh2 Rf5 Nh3 g1Q Rf2 g2 Ra1 Rf3 Nf5 g3 N5h6 Rf5 Ra5 Rf3 Rd5 Rf5 Qe1 Rf3 Kd1 d2 Kc2 d1B+ Kb1 d3 Bg5 d2 Rd6 Ba4 Qd1 Bc6 Be3 Bcb5 Bd4 Rf5 Bc3 Rf3 Rf1 Qd4 Ng1 Qg4 Rf2 Rf5 Qc2 d1R+ Qc1 Nd7 b8B Rdd5 Bc7 Nb8 b7 Rf3 Bb6 Rff5 Nh3 g1N Qd1 Nf3 Ng1 g2 Qd3 Nc6 b8B Ng5 B8a7 Nb8 Qd1 Ne7 Bbd4 Ng6 Bdb6 Ne5 Bbd4 Nef3 Bab6 Nh7 Nh8 Nfg5 f7+ Ke7 Bg7 Rg8 f8N Ke8 Nfg6 Rgf8 N8f7 Rf3 Nfe5 R8f4 Bf6 Rf5 Nh3 g1Q Nef7 Q1g3 Ng1 Qe5 Rd7 Qe3 Rd6 Qc5
k2q2Br/5P2/q3N2n/2RN1nK1/B1qbbNQ1/nb1r4/p1R3r1/2r1BBB1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 f5 Kc7 g5 Kb7 b6 e3+ Ke2 a4 Kf3 e2 c5 e1N+ Kf2 a3 b5 d3 Ke3 d4+ Ke4 d2 g6 a2 f6 d3 g7 h3 f7 h2 Na3 h4 Qg4 d1Q Bh6 h3 Rc1 d2 Be3 Qe2 Nc4 d1R Rc2 Nh6 g8B Ra5 c6+ Ka8 c7 Be6 c8B Nc6 Bd7 Nd4 Be8 Rd3 Bd7 Bc5 b7+ Ka7 b8B+ Ka8 b6 Ndf5 Be8 Bd4 Ba4 Rb5 Bd6 Rb1 Bb4 Rb2 Rd2 Nc2 b7+ Ka7 b8N Na3 Na6 Ka8 Nc5 Rc2 Nb2 Bb3 Nd1 Rc1 Rb2 Qc2 Ba5 Qc4 Ne6 Rc2 Bb4 Rg2 Nc3 Qa6 Kf3 e4+ Kf4 Qc4 Bf2 e3 Nd5 e2 Rc2 e1R Ne2 Rc1 Bbe1 Qa6 Rg1 h1B Rc5 h2 Rc2 Qc7+ Kg5 Qcc4 Be3 Rg3 B3f2 Be4 N2f4 h1Q Rg2 Qh2 Bg1 Qh3 Rge2 Rg2 Rf2 Qf3 Rc3 Qd1 Rfc2 Qb4 Rc6 Qbc4 Rc5 Qd2 Be2 Qda5 Bf1 Qd8+
q3QnK1/2rbp2R/bb1N1N1P/qR4Nr/q1Br2n1/n3B1n1/1N1N3B/7k w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 f4 Ke6 c4 Kf5 b4 g5 h4 d5 c5 a5 b6 e3+ Kd3 a4 b7 g3 b5 g2 b6 e2 c6 Kg4 c7 Kg3 f5 e1Q h5 g4 f6 a3 f7 a2 Bg5 Ra4 Qe2 Bd7 c8N Qa5 Nd2 Bg7 f8N Nf6 Rb1 a1N Qe6 Nc2 Qe4 Na3 Nh3 g1R Bg2 Rc1 Rb2 Rc7 Nf4 Kf2 Nh7 g3 Bf3 g2 Be2 g1N Qg6 Ng4 Nd6 Rb4 Bf1 Ne2 Qe8 Ng3 Bh6 Ra4 Ng5 Bf6 Rh2+ Kg1 Rb5 Qa8 Ng6 Bg7 Ne5 Qa5 Nec4 Qc8 Rf2 Kh1 Rf7 Be5 Rh7 Bf4 Ngf3 Be3 Nb2 Bg1 Be3 Qd8 Ng5 Rac4 Nb3 Qa8 Kd2 d3 Be2 d4 h6 Rf8 Bf1 Rf5 Be2 Bc8 Bf1 Nd7 b8N Ba6 b7 Nf8 Nd7 Bf2 b8B Rfc5 Nge4 Rh5 Ng5 Ra4 Nf6 Rb4 Kd1 d2 Bc4 Bg1 Nc8 Qdd5 Nd6 Qe5 Rb7 Qa5 Rb5 Ne4 Ke2 d1B+ Kd3 Ng3 Nd2 Ba4 Rf5 Bd7 Rd5 Nf1 Ke4 d3 Kd4 Ng3 Rb5 Rc6 Kd5 Bf2 Nb1 d2 Bc7 d1Q+ Nd2 Qda4 Bb8 Bdc8 Bc7 Nd7 Ke6 Nf8+ Kf7 Bd7 Kg8 Bg1 Bf4 Bb6 Be3 Rc5 Nc8 Rc6 Bcf4 Rc7 Nd6 Ne2 Bh2 Ng3 Bf1 Rf4 Bc4 Rd4
7b/1p1rqnBR/3B2N1/2B3B1/k2n1Qbr/1Rq2P1r/NnN3Br/K1b2q2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 d4 Kd7 Kd2 g5 Kc2 e5 Kb2 c5 a4 e3 h4 b3 a5 e2 d6 Kc6 f3 Kb5 d7 g3 a6 e4 h5 c4 d5 e1Q a7 g4 d6 e3 h6 g2 h7 e2 Rh6 g3 Na3+ Ka4 Qd5 c3+ Kb1 b2 Qg5 Qe7 d8B Bg7 d7 Nc6 Bc7 Nd4 d8B Bg4 Nh3 g1Q Bg2 Qgf1 Nf4 c2+ Ka2 b1N Ng6 Nd2 Qf4 Nc4 Be3 c1B Bd6 Nb2 Nc2 Qc3 Rb1 e1R Ka1 Rd1 Rh1 Rc8 a8N Nh6 Nc7 Nf7 Nd5 Rc4 Ndb4 Bf6 Na2 Rb4 Bh3 g2 Bf2 g1R Bg2 Rd2 Rh4 Rh1 Rh6 Ne2 Bfc5 Nd4 Rh4 Rh3 Rh5 Rg8 h8B Rg7 Rh6 Rh7 Rh4 Rh5 Bg7 Rd5 Rh7 Rdh5 Bh6 Bh8 Bg7 R5h4 Bh1 Rdh2 Bg2 Qf8 Bdf6 Qe7 Bg5 Rb6 Bb8 Rd6 Bc7 Rd7 B7d6 Nd3+ Rb2 Qa5 Rb6 Nb2 Rb3 Qc3
B2bQ1rB/1N1bn1R1/brp2b2/1q3b1K/RN1NN1nr/4B1P1/nN6/5kb1 w - - 0 1 illegal: No possible last move, all moves rejected
2R1R1rn/1QN1BB1B/7b/4Nq1p/1P1r2bb/2KBB1nN/3n3r/b1k3nb w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 b4 Kg5 c4 Kf4 b6 d5 b7 e5 g5 a5 c5 h3 f3 e3+ Kc2 h2 c6 d3+ Kb3 d4 g6 a4+ Kc4 a3 c7 e4 g7 a2 Qc2 d2 Bg2 d1N Nd2 e2 Nb3+ e3 Qb2 e1B Qa3 d3 Qb2 d2 Qc2 e2 Nh3+ Ke3 f4 Qd7 f5 Nb2+ Kc3 Nh6 g8B Bh4 f6 e1N f7 Na6 b8N Nc5 Bd5 Nf3 Na5 Nc4 Nac6 Ng1 Na6 Qf5 Ne5 Be6 c8B Ne4+ Kb3 Rb8 Nc7 Ng3 Kc3 Ke2 Qb1 d1R Be3 Rd4 Qe4 Nd2 Rc1 Bg7 f8B Nf7 Bd6 Bh6 Be7 Bd7 Rc2 Kd1 Ba6 Re8 Bd3 Rb8 Rb2 Kc1 Rc2+ Kb1 B7g5 Bc6 Ng4 Bg7 Nb5 h5 Bh7 Rbf8 Qf4 Qe5 Qf3 Bd7 Bef4 Rhg8 Be6 Re8 Qb7 Nh8 Bf7 Bh6 Bd8 Qd5 Bf6 Re2 Bd8 Nc4 Kb3 Be6 Bc1 Nf3 Re1 h1B Bf6 Rf2 Re3 Bd7 Re8 Ng1 Be3 Rh2 Be7 Qf3 Ne5 Bg4 Rd2+ Kc1 Rc2+ Kd1 Rc3 Nd2+ Kb2 Qf6 Rcc8 Qf5 Kc3 Kc1 Nc7 a1B#
2r4B/Rn1k2b1/N1n2BrN/2n3p1/2n4Q/B1n1BKP1/1N2nbBR/5qqq w - - 0 1 legal: proof: c4 f5 a4 b5 c5 bxa4 c6 dxc6 Qc2 c5 Qd1 c4 e4 fxe4 h4 g5 h5 Bh3 Qc2 Bf5 Qd1 Bg6 hxg6 Qd5 Qb3 Qd3 Qd1 Qd8 Ke2 c5 d4 a5 b4 h5 f4 e5 f5 h4 d5 c3 b5 c2 g7 h3 g3 e3 b6 e4 b7 a3 f6 h2 f7+ Kd7 d6 a2 Nc3 c4 Nb1 c3 Nd2 a4 Nb1 a3 Qd2 Nc6 b8B Ne5 Qd4 Qb6 Nd2 Ra6 Bc7 Nc4 Qf6 Ne7 g8N Bg7 f8B Nc6 Bb2 c1N+ Ke1 e2 Nh3 c2 Qf4 Qg1 Qh4 Rb6 Rb1 a1Q Nb3 Na2 Nf4 c1N Nd3 Nc3 Nh6 a2 Be7 Ra6 Bb6 Rc8 Be3 Rb6 Ba3 Ra6 Rb2 Qb1 Bf8 a1N Ra2 Rb6 Nb2 Qd3 Nd4 Nab3 Ne6 Nba5 Nc7 Nb7 Na6 Qg2 Rg1 h1Q Ra1 Qgh2 Bg2 Qd1+ Kf2 e1N Be7 N1e2 Bf6 Qh3 Be5 Qd4 Ra2 Nd3+ Kf1 Q3h2 Bc1 Qd5 Nc7 Qg8 Bh3+ Kd8 d7 Ncd4 Bb4 Rg6 Ra7 Bf6 Na6 Nc6 Be3 Qf7 Ba3 Ndc5 B5d4 Ke7 d8B+ Kd6 Ke1 Qf8 Bf1 Kd7 Rg2 Q2g1 Rh2 Qf7 Be7 Be5 Bf8 Qf5 Bg7 Qh3 Bh8 Bg7 Bd2 e3 Bf6 Nf4 Bc1 e2 Be3 Nd6 Kd2 e1B+ Kc2 Bf2 Kd2 Qg4 Bg2 Qh3 Be4 Qhf1 Bg2 Nce6 Bec5 Nfe2 Kd3 Nd1 Be3 Nc4 Ke4 Nc5+ Kf3 Ndc3
bBQRKBRq/bR6/1n6/kB1P2nN/5n2/brrB1NB1/2bb1p2/4bq2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 e4 c5 g4 Kc7 d4 Kb6 b4 a4 g5 a3 g6 h3 g7 c3 Qf3 c4 Qd3 c2 Be3 c1B Nf3 h4 Bf2 c3 Nbd2 a2 Be2 h2 Qe3 h3 Bd1 c2 Qe1 Nd7+ Ke6 Ngf6 Kf7 Bc5 g8B Rb8 e5 Nh5 e6 Ba3 e7 c1B Rg1 h1N e8R h2 Bh7 N1g3 Ba4 h1B Rb1 a1B Nf1 Ne4 Bg3 Bd2 Qc1 Bac3 d5 Bb7 Rf8 Ba8 Rb3 Qc8 Rd8 Be1 Qc2 Bcd2 Bg6 Rh6 Ke8 Ng5 Bh7 Rc6 Rb1 Kb7 b6 Ka6 b7 Ba7 b5+ Ka5 b6 Rc3 Bb5 Bg2 Nh4 Be4 Nf3 Rb3 Qc1 Bc2 Rb2 Qc3 Rg2 Rc8 b8B Rc4 b7 Nb6 Bd6 Qh8+ Bf8 Rc7 b8B Rcc3 N3h2 f3 Rg1 f4 Bhd3 f2 Nf3 Rc7 Rg2 Bb1 Qc6 Bc2 Qe6 Rcc3 Qc8 Rc4 Ne3 f1Q Nf5 Rc5 Ng7 Rcc3 Bh2 Ng3 Nh5 Ne2 Rg4 Qh3 Bg3 Qf1 Nh2 f3 Rb1 f2 Nf3 Ne4 Rg8 Nf4 Qh3 Nd7 Ba6 Ng5 Qe6 Rb5 Rb2 Rbc5 Rb7 Nb6 Qc8 Rb3 Bab5 Rcc3
rkb1B3/4rBNN/8/nPKQRp1R/BB1Br3/4b1n1/Nq2n1n1/3bnr2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 f5 c4 a5 b4 h5 c5 h3 e5 h4 g5 a4 g6 f3 c6 a3 g7 h2 e6 h3 e7 a2 e8B f2 Qc2 Rh4 Bg2 f1R Bd2 Bc5 Ne2 Nf6 g8N Ne4 Nf6 Nc3 Nf4 Ne2 Nh7 Qf6 Nh5 Re4 Nc3 Re7 Rd1 a1N Qa2 Nc2 Re1 Rf4 Qb3 Rfe4 Ng7 Ba7 Na2 Bb6 Rhg1 h1N Rgf1 Nhg3 Rh1 h2 Bf7 Kd6 c7 Nc6 Bf3 Bc5 b6 Na5 b7 Kc6 b8B Kb7 b5 Qe5 Rhf1 h1R Bb4 Rg1 Rf2 Rf1 Rh2 Bb6 Rh5 Bc5 Kd2 d3 Ba7 Qb2 Qc4 d4 Qb3 Nf4 Bd1 Ng2 Re2 Nce1+ Bc2 Bd7 c8B+ Kc7 Bb6+ Kb8 Qd5 Be6 Bb7 Bd7 Bc6 Bc8 Kd1 d2 Bce8 Bd6 Re3 Bf4 Ba4 Bh6 Rc3 Be3 Rc5 Nh1 Ke2 d1N+ Rc2 Bg1+ Kd2 d3 Be3 Ng3 Bd4 Qb1 Rc6 Nc3 Re6 Nce2 Re5 Nc1 Kc3 d2 Bc6 d1B Bd7 Be3 Bde8 Nb7 Kc4 Na5+ Kc5 Nce2 Rh3 Qb3 Rh5 Qb2
nnn5/1r1b2b1/1b1BR3/P2B1q1N/1b5K/RB2brp1/NB4R1/3qkBQb w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 f4 Kf7 Kf2 Kf6 Kg3 Kf5 a4 d5 c4 g5 h4 e5 a5 b5 h5 d4 c6 d3 h6 e3 c7 Ke4 h7 b3 f5 e2 f6 e1B+ Kg2 b2 c5 d2 f7 Ke3 c6 g3 Rh5 e4 Rh2 g4 Ne2 b4 Qb3+ Qd3 Qe6 b3 Qd7 Ra7 Na3 b1N Qf5 b2 Ng1 Bd7 c8B Rb7 c7 Nc3 Qg6 b1B Ne2 Ne7 Qg8 Bg7 f8R Nb5 Re8 Bf2 Bb2 d1Q Nc2+ Kd2 Ra3 e3 Nf4 e2 Nh5 e1B Nb4 Qf5 Na2 Bb6 Be5 Bd3 Bd6 Bc4 Qf8 Rg8 h8B Bce6 Qf6 Rf8 Qa1 Bc4 Qd4+ Bd3 Qg1 Rf6 Be2 Be4+ Bf3 Bec6 Bd5 Ke2 Rh1 Bb4 Rh2 Ra7 Ba6 Rb7 c8B Rf7 Rd3 Nc7 Ra3+ Kd2 Bf1 Na8 Bc7 Ke1 Bd6 Bh6 Bb2 Bg7 Rh8 Be3 Rh6 Bb6 Re6+ Be3 Kh1 Rf6 Rc2 g2+ Kh2 Rf7 Kg3 Rf8 Qh1 g1B Kh4 g3 Rg2 Bf2 Bb3 Be4 Qh2 Bb6 Qg1 Bfe3 Rc2 Bh1 Rg2 Rc7 Bca6 Nc8 Bac4 Rb7 Bd5 Qf2 Bc2 Rf3 Ba4 Qfc2 Bab3 Qf5
1n3NNB/5K1N/1b2B1QP/1qN1NR1R/1n2nq2/2kB1n2/2n1r1pb/3n1br1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 h4 d5+ Kb3 a5 c4 f5 e4 g5 b6 a4+ Kc2 d3+ Kc3 d2 b4 d4+ Kd3 a3 c5 a2 Kc4 g3 b5 f3 b7 d3 b6 g2 h5 f4 h6 f2 c6 g4 c7 f3 Na3 g3 Nh3 g1B Ng5 g2 Rh5 Bc5 Qc2 d1N Nh7+ Qg5 Bb2+ Nc3 Rd1 d2 Bd3 a1N Rf1 Bd7 c8B d1N Qb1 Bc6 Be6 Ne7 Qc2 Re8 Qb1 Nd7 b8N Nc2 b7 Bb6 Na6 Nb8 Nc5 Bh2 Ba1 Nd5 Bb2 Kf4 e5 Ke3 Ba1 Kd2 Bb2 Nd7 b8N Ne4 Bd4 Ndb4 Ba1 Ndf6 Nbd7 Qf4 Ndf8 Nd7 Bd4 Nb8 Bb2 Na2 Bd4 Bb5+ Kd5 Ra4 Bb2 Rb4 Ba1 Rb2 Nc4+ Kc3 Na6 Ng3 Nc5 Nab4+ Kd6 Rc8 Ke7 Rc6 Ke8 Ne4 Ke7 Qd2 Kf7 Qf4+ Bf5 Rc8 e6 Rc7+ e7 Rb7 Re1 f1N Ne5 Nfd2 Rf1 Rc7 Rf2 Rc6 Rf1 f2 e8N Nf3 Nef6 Bc4+ Be6 Ba6 Rh1 f1Q Rf5 Rd6 Ng8 Bc4 Be2 Rd2 Bd3 Re2 Qc1 Re1 Qe3 Qe2 Qf2 Rg1 Qg3 Qf2 Qg4 Qd4 Qg6 Qd5 Na6 Qb5 Nc5 Bg3 Rh4 Bh2 Rh5 Nce1 Bb1 Bf1 Bd3 Nec2 Nc6 Na3 Bb1 Kd2 Bd3 Ra2 Bh8 Rc2 Nhf6 Kc3 Ne5 Re2 N6h7 Nac2
b5Nq/1nknn1Nn/Q2n1p2/1R2rr2/2q2B2/3R1R2/BR1K3P/r1B1b1Rn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 c4 a5 b4 g5 e4 d5 c5 Kd7 e5 g3 b6 a4 b5 g2 b7 g4 c6+ Kc7 e6 g3 e7 a3 e8R f6 Qb3 d3 Qa2 f3 Bh6 d2+ Kd1 d4 Re7+ Nd7 b8R f2 Qf7 a2 Ne2 g1R Rb6 g2 Bg7 Rh5 Nbc3 Re5 Qc4 Bb7 Nf4 Ra5 Rc1 a1N Bh6 Nb3 Nh5 Nc5 Ng7 Ba8 Rc2 Nb7 Rb2 Qe8 Re6 Bb4 Rd6 Ne7 Kc2 d1N Bc1 d3+ Kd2 Ra1 Be2 Rf1 Rg1 Ba5 Bh5 Bb4 Bf7 Qh8 Qa2 Ne3 Qa6 N3f5 Ba2 Ba5 Rd4 Nfd6 Rf4 Nbc5 Rb8 Ncb7 Rf3 Rfe1 Rd8 f1Q Rb8 Rf5 Rd8 Ree5 Rb8 Ndc8 b6+ Kd6 c7 Kc6 Rh1 g1N Rb5 Nh3 Rg1 Ncd6 Rd8 Nf7 c8R+ Kd6 Rb2 Nhg5 Rc5 Nh7 Rcb5 Kc6 Rg4 Nfd6 Rg1 Nbc5 b7+ Kc7 Rfg3 Qf4+ Re3 Qc4 Rf3 Bb4 Qa3 Kc6 b8B Ncb7 Qa4 Bc5 Nd5 Bf2 Ba7 Bh4 Be3 Bg3 Bf4 Be1+ Kd1 d2 Qa7 Ng6 Ne7+ Kc7 Ng8 Ne7 Qa4 Qd4 Kc2 d1N Qa6 Qb4 Kd3 Nf2+ Kc2 Nh1 Kd1 Ndf8 Kc2 Qc4+ Kd1 Ne4 Rdd3 Nd7 Ke2 Ned6+ Kd1 Bh4 Kd2 Be1+
1n3b2/QN1R2B1/1bp2NnR/1R1qq1N1/Rq3q1r/2P1r3/R1b5/qkqBK3 w - - 0 1 illegal: No possible last move, all moves rejected
3b1bb1/b3R2n/rP1BBr1n/2r2BN1/1bb3N1/qBk3q1/KR1p3B/3R3Q w - - 0 1 illegal: No possible last move, all moves rejected
2Kn3k/3rr1p1/b4B2/n2RP2N/1NRbBbR1/n4q2/n3B3/Bb1Qb1rB w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 b5 Kg3 f5 Kf4 Kf7 a4 c5 d4 g3 h4 g2 e4 b3 h5 b2 h6 c3 d5 c2 h7 c4 d6 b4 a5 c3 d7 b3 a6 Ra7 Be2 Nc6 Rh5 Nge7 Ra4 Na5 Na3 b1N Rc4 b2 Nh3 g1B e6+ Kg6 Ke5 f4 Kd6 f3 e5 f2 Rhh4 Nec6+ e7 f1R Nf4+ Kf7 Nh5 Bd4 Be3 c1N Nc2 Rg1 Rg4 Na2 Nb4 c2 Bd2 c1B Bc3 Rc7 a7 Ba6 a8B Bf4 Bb7 Qc8 d8B Qf5 Ba8 Rg8 h8R Na3 Rh6 b1B Ba1 Ra7 Bb7 Rh8 Kc7 Kg8 e8B Qe4 Bg6 Qf3 Be7 Nd8 Bf6 Bfc5 Bf5 Bf2 Bc2 Be1 Kc8 Bd4 Rhg6 Kh7 Be4 Re8 Rh6+ Kg8 Rh8+ Kf7 Rg8 Re7 Re8 Rd7 Re6 Kg8 Rd6 Kh8 Rd5 Qf2 Bh1 Qf3 Rd6 Bb5 Be4 Rab7 Rd5 Ba6 Bb2 Re7 Ba1 Rbd7+
4bq1N/1pnN4/b1n1R1br/rPqb4/1k4NR/1BrB4/Q3bN2/K1bN2R1 w - - 0 1 legal: proof: h4 c5 f4 e5 fxe5 g5 b3 gxh4 d4 cxd4 Rh3 a5 Rh2 a4 Bb2 a3 g4 axb2 Kd2 Ke7 c4 f5 Kc2 h5 e4 d5 a4 f4 e6 Kd6 g5 Kc5 e7 f3 e8N h3 a5 f2 e5 h4 a6 Bd7 a7 Ne7 e6 Qc7 g6 Na6 g7 Kb4 g8B Nc6 e7 Rh6 Nf6 Be8 Bd3 f1Q Nc3 b1B+ Kb2 Bc2 Rh1 h2 c5 h3 Qd2 Qd6 Bf7 Nc7 Ng4 Bg7 Bg8 Qf8 Re1 Bf6 Ka1 Bg5 Rf1 Bb1 Qa2 Bc1 Nd1 Rc8 a8N Bc2 Be4 d3 Nb6 d4 Nd7 d2 Bd3 Ra8 Re1 Ra5 Re4 Nd8 c6 Qc5 Nge3 Bb1 Rh4 Bc2 Ng4 Bb1 Ndf2 d1B Ne2 Bdc2 Rg1 h1B Bd5 h2 Nc3 Bd1 B5c4 Be2 Ncd1 Bhf3 Be6 h1B Bg8 Bd5 Be6 Bg6 e8R Bhf3 Re7 Be8 Bg8 Bc4 Re6 Bfd5 Bf7 Ba6 Bg8 Na8 c7 Nc6 c8N Nc7 Nd6 Bc2 Nf7 Bb1 Bc2 d3 Nh8 d2 Bd3 Bc2 Nb2 d1R Bf7 Kc3 b4 Rd2 b5 Kb4 Nbd1 Bb1 Bc4 Bh7 Bg6 Rd3 Bb3 Rc3 Bd3 Bhg6
1q2R3/br1kBrbn/N3bn2/r2B3N/4NNb1/B1NPrq1R/2p2Q2/2K4b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 a5 g4 f5 e4 h5 b6 c5 b5 a4 e5 h3 d3 h4 Kd2 f3 g5 c3+ Kc2 a3 b7 a2 g6 f2 b6 c4 g7 f4 e6 h2 e7 f3 Bg5 h3 Bh6 Nd7 b8N Rh7 b7 Ndf6 Na3 Ra5 Bf4 Be6 Be2 f1B Bc1 f2 Na6 Qb8 Nb5 Kd7 e8N Bc5 Qe1 Ba7 Bf3 Be2 Ned6 f1R Bd5 B2g4 Ne2 Rf3 Bg5 Re3 Kc1 c2 Rb1 a1B Ne4 Bc3 Qf2 Ba1 Re1 h1Q Nbc3 h2 Nf4 Qf3 Rb2 h1B Ra2 Nh5 Be7 Ngf6 g8N Rf7 Ba3 Nh7 Rb2 Qc7 b8B N5f6 Ra2 Qb6 Bbd6 Qb5 Be7 Qb8 Kd2 c1R Rb2 Qc7 Rb8 Bb2 Re8 Rb1 Rg1 Ba1 Rg3 Rb7 Kc1 Qd6 Rh3 Qb8 Na4 Be5 Nac3 Bed4 Nh6 Be5 Nf5 Bed4 Ng7 Be5 Na2 c3 Ngh5 c2 Nac3 Ng8 Bh4 Bg7 Bhe7 Ngf6
n1R1B1bR/N3n1B1/N1q3n1/B2Q3r/rr1r1q2/P3k1Kn/7p/B2nB1bR w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kd7 Kf2 Kd6 d4 e5 g4 c5 g5 h5 a3 b5 f5 e3+ Kf3 e4+ Kg2 c4 g6 c3 g7 b3 f6 h3+ Kh2 e2 f7 e1R Bb2 h4 Ne2 c2 Rg1 c1Q Rg5 e3 Nec3 b4 Qd2 e2 Rg3 Na6 Ra2 Nc7 Qg5 Rh5 Rg1 Rd1 Rg4 e1N Qh6+ Be6 Ra1 Qf6 Qd2 Ne7 g8R Nd3 Rh8 Ra4 Na2 Qc6 Nbc3 Na8 Rgg8 Nf4 Bb5 Nfg6 Qd3 Bh6 f8B Be3 Bg7 Bf7 Rc8 Bg8 Rb1 Qf5 Ba1 b2 Qd2 b3 Nb4 Qf1 Rc1 b1N Na6 b2 Qg2 Qf8 Qf3 Rd3 Rh1 Rd1 Na2 Rd3 N2b4 Nc3 Qg2 b1R Qf3 Qce8 Nc6 Nd1 Na7 Rbb4 Qe4 Qc6 Qg2 Kd7 d6 Ke6 d7 Kf5 d8B Kf4 d5 Rdd4 d6 Bf2 d7 Ke3 Bc7 Qf5 d8B Qfe4 Bg3 Qf4 Rf1 Bg1+ Kh1 h2 Ba5 Rg5 Qd5 Rh5 Kg2 h1N Be1 Nhf2 Be2 Qc1 Bb5 Nh3 Bd7 Qc6 Be8 Bf2 Rh1 Bg1 Bh6 Nhf2 Bg7 h3+ Kf1 h2 Kg2 Qf5 Kg3 Nh3 Rd8 Qff6 Rc8 Qf4+
4q3/4R3/kBb1nbr1/2P4Q/1B1B1rpN/b1NR2nq/r3b3/1rbK1NBB w - - 0 1 illegal: No possible last move, all moves rejected
1K1Rb1qr/1nrq3k/nPr1Rn2/1BB3rN/1B6/R4N1p/Q2b2B1/3B2rn w - - 0 1 illegal: No possible last move
bn1N1NNn/r3qrbB/P5N1/1Bpbn3/3qn3/N1k1n2b/5B1R/R4KQ1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 e4 Kd6 a4 f5 g4 c5 a5 b5 g5 h5 g6 h3 g7 h4 a6 b3 Ra2 b2 Qb3 b4 Qd3 h2 Qd1 b3 Bd3 f3 Bg5 h3 Qc2 f4 Qc1 f2+ Kf1 Nh6 g8N Bg7 Ne2 Qe7 Nf6 Ra7 Nec3 Rf8 Ng4 Rf7 Nd2 b1Q Nf3 b2 Nfe5 Qa1 Bh4 b1N Nf6 Na3 Ng8 Nc4 Ng6 Ne5 Nb1 Bg4 Rg1 h1B Na3 h2 Rg2 Qc3 Ra1 Bh3 Qd1 Rf6 Qg4 Nhf7 Bg3 Nh8 Qg5 Kd7 d6 Kc6 d7 Rf7 d8N+ Kd6 d5 Qd4 Ke2 f1N Bf2 Ne3 Ne6 f3+ Ke1 Kd7 d6 Kc6 d7 Kb6 d8N Ka5 Bb5 Kb4 Nef8 Kc3 Qg4 Nd5 Kf1 Nf6 Bh4 f2 Qg3+ Nf3 e5 Ne4 e6 Qdd7 Bd3 Ne5 Qg4 Qd4 Qd1 Qed7 e7 Qe8 Ke2 f1N Bf2 Ne3 Qg1 Qed7 e8B Qe7 Rg5 B1g2 Beb5 h1B Rh5 Bf3+ Ke1 Ng2+ Kf1 Bfg4 Rd1 Be6 Ra1 Bd5 Bb1 Bhe6 Rh2 Bh3 B1d3 Nd2+ Ke2 Ba8 Bf5 Nh4 Nf4 Bhd5 Bh7 Ng2 N4g6 Ne4 Kf1 Ne3+
1nB4n/2bqq3/b2QnN1R/BB2b3/5q1K/2R1n1P1/rp2Rr2/k1N2qBB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kf6 e4 h5 a4 c5 d6 b5 d7 c4 g3 c3 d5 Ke5 d6 f5 a5 h3 a6 f3 a7 c2 Ra3 f4 Rh2 h4 Ne2 b3 Qd2 b4 Ng1 b2 Qe3 b3 Ne2 Ba6 Nec3 Bg7 Qe2 Kd4 e5 Qe7 d8B Nh6 e6 Nf7 d7 Rf8 Na4 Be5 Qe1 Nh8 Rg2 h2 Be2 h1N+ Kg1 h3 Kh2 f2 Nd2 b1Q Ba5 f1Q Qd1 f3 Nc3 Nf2 Bb5 Nd3 Nce4 f2 Nf6 Nc5 d8R+ Qd7 e7 Ne6 e8B Qa2 Bb6+ Kc3 Be3 Qe7 Bed7 Qd3 Bc8 Qdd7 Re8 f1Q Bg1 Rf7 Nh5 Rf2 Nf6 Qa1 Rf8 Qc4 Rg8 Qf4 Rg6 Qb1 Rh6 Bc7 Ra5 Qa1 Ba3 c1B Bb4+ Kb2 Ra3 Qb1 Ba5 Qbd3 Nde4 Qf1 Qd6 Kb1 Nc5 b2 Re3 Ka1 Rc3 Be3 Nd3 Bd4 Nc1 Be5 Kh1 Rd2 Re2 h2 Nd5 Qd1 Kg2 h1N Kh2 Nf2 Nf6 Ng4+ Kh3 Qdf1+ Kh4 Nc6 Re1 Rf2 Re2 Ne3+ Kh5 Rb8 a8B Rb6 Bab7 Nb8 Be4 Rc6 Bh1 Rc4 Rec2 Ra4 Re2 Ng4 Kh4 Ra3 Nd3 Ra2 Nc1 Ne3+
bn3Kbb/1B3N1r/1B1nQ2B/3Nb3/p3R1R1/P1n1Bn1r/B7/qNr1kq2 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 Kf2 Kd7 e4 Ke6 d4 b5 h4 a5 e5 Kf5 c6 Ke4 c7 g5 d5 f5 d6 f3 Kg3 c3 a3 f2 d7 f4+ Kh2 c2 e6 f3 Kg3 b4 h5 a4 h6 b3 e7 b2 e8N Nf6 h7 Ra7 Rh6 Bb7 c8B Bd6+ Bf4 c1R Bh3 f1B Nd2+ Kd3 Nc7 b1N Nd5 f2 Qe1 Ba8 Ngf3 Be5 Rh4 Ne8 Bb7 Nc3 Nb1 Qf6 d8B Nd6 Bb6 Be2 Be3 f1Q Ra2 Bd1 Re2 Bb3 Bb6 Qg7 Re4 Kc2 Qe3 Kd1 Bg2 Re8 h8B Re7 Nb4 Bg8 Nd5 Re6 Bh1 Rh6 Bg2 Qf6 Bg7 Rh7 Bh6 Ra6 Kh2 g3+ Kh3 Ra7 Kg4 Qg7 Kh5 g4 Bh1 g2 Bg5 g3 Rhg4 g1N Bf4 g2 Ng5 Qf6 Nf7 Nf3 Bg5 Qh8 Kg6 g1B Bg2 Ne1 Qh3 Bgd4 Be3 Nf3 Bh1 Ke1 Bg2 Qb5 Bf1 Ra5 Bc4 Qa6 Ba2 Qf1 Rg1 Rb5 Qe6 Rb2 Rg3 Rh2 Rgg4 Rh3 Beg5+ Ne2 Nd8 Bh2 Nf7 Ba1 Bge3 Qb2 Bc4 Qa2 Bb3 Bh8 Bc4 Qb2 Bb3 Nc3 Ba2 Rg7+ Kf6 Rh7+ Ke7 Qa1 Kf8 B2e5
q2k1qbB/QR2q3/rNR1B1K1/2r2Rnp/1bbNqNr1/RR1P4/3b4/1n6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 h5 b4 a5 e4 c5 g4 h3 e5 c3 b6 h2 b7 c4 g5 a4 g6 c2 g7 a3 e6 c3 e7 a2 b5 Nf6 g8N Nh7 b6 Ra6 Bb2 c1B Qe2 c2 Qf2 Be6 Bc4 Nc6 b8R Na7 b7 Nb5 Qd4 Nc3 Na3 Nb1 Nh6 Rg8 Qa7 Rg4 Ne2 Bg8 Rf1 Kd7 e8R Bb4 Rf2 Qe7 Be6+ Kc7 Nc4 h1Q+ Rg2 Qhh4 Nb6 Qh1 Rf8 Ng5+ Kf2 f3 Ke3 f2 Bh8 f1B Nf4 Be2 Rf6 Qh4 Rf2 Bc4 Kd4 Qh1 d3 Bcd2 Ke5 c1R Rg6 Qd7 Kf6 Qe4 Rf3 Qd6 Kg7 Qc5 Rf6 Qe7+ Kg6 Rc2 Nh3 f4+ Nf5 Rc1 Rf1 f3 Nf4 Rc2 Rc1 f2 Rf1 Qg2 Nd4 Qe4+ Rf5 Rc3 Rc1 f1Q Rc2 Bb3 Rc1 Rc5 Rc3 Bc4 Ra3 Nc3 Rc1 Nb1 Rcc3 a1Q Rc8+ Kd6 b8R Qff3 Rab3 Qa4 Ra3 Qac6 Rc7 Qa8 Rbb7 Qaf8 Rb8 Qa8 Rbb7 Qe4 Rab3 Qd7 Rc6+ Ke7 Ra3 Kd8 Rcb3 Qde7
1rB1qkB1/1n2rr2/N4n2/1NP1R1N1/bB3qRK/5N1p/1bN5/Qr2q1bq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 f5 c4 d5 e4 h5 b4 a4 e5 h3 g5 h4 b6 a3 e6 a2 g6 d3 b7 h2 g7 f3 b5 f4 e7 d4 b6 h3 Bb2 d2 Qe2 d1R Ba3 d3 Nc3 d2 Nb5 Na6 b8N Bd7 b7 Nc5 Bb4 Rh7 Nc6 Rb1 b8N d1Q Qb2 Nf6 g8B Nb7 Na6 Rb8 Ncd4 Bg7 c5 Qc1 Na3 Ba4 Nab5 Qc4 Nc2 Qe4 Ne2 Qf5 Rg1 h1Q Ned4 Qe5 Qc1 Qg5 Ke1 f2+ Ke2 Qh4 Rg4 f3+ Ke3 Qd7 Kf4 Qd8 Bfc4 f1R Bce6 Qe1 Kg5 f2 Nf3 Bh6+ Kh4 Be3+ Kg3 Rf7 Bc8 Rg1+ Kh4 f1Q+ Rg3 Rg2 Qb2 Rf2 Rg4 Qc4 Qc3 Qf4 Qe5 Rd1 Rb1 a1B Rb3 Bed4 Re3 Bab2 Re4 Be3 Qc3 Rg7 Re5 Rb1 Qa3 Qd7 Qa1 Qe6 Bh7 Kf7 e8N Kf8 Ned6 Qe8 Bg8 Re7 Nf7 Qd2 Qa3 Rff1 Qa2 Bg1 N7g5 Rf2 Qa3 Qe1 Qa1 Qfd2 Nc3 Nh5 Nh2 Qdc1 Nb5 Rff7+ Rg3 Nf6 Nhf3 Qed2 Rg2 Qf4+ Rg4 Qe1+
2q5/1B1QbRN1/1nn1B2n/Pbq2rk1/1B1qB2n/qN1p3b/1RBrR3/7K w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kf2 Ke7 a4 f5 c4 b5 e4 d5 g4 h5 Kg2 h4 g6 Kf6 g7 b3 e5+ Kg5 c5 b4 c6 h3+ Kh2 b2 a5 d3 e6 b3 e7 d2 e8B f3 c7 f4 Na3 b1N Qe1 d1Q Be3 b2 Bc5 d4 Qe3 f2 Qd2 Nh6 g8B Nc6 Nc4 Be7 Ne2 Nc3 Bg6 b1Q Be4 Qa2 Nd6 Na4 Nc1 Qa3 Ne8 Nb6 Bfd3 f1Q Bc2 Qb5 Bb4 Qc5 Be6 Rf8 Ng7 Rf5 Rf1 Qg8 Kh1 h2 Qd3 f3 Ra2 f2 Rb2 Ra7 Re1 f1B Nb3 Qf8 Qh3 Bb5 Rf1 Bd7 c8B Qh8 Bb7 Qc8 Re1 Qd2 Re2 Qdc3 Kg2 h1N Qd3 Ng3 Kg1 Nf1 Kh1 Nh2 Qd1 Nf3 Qd2+ Kh4 g5 Kg4 g6 Nh4 Ne8 Qe3 g7 Kg5 Qd1 Qf4 Qd3 Qfe5 g8R+ Qg7 Qh3 d3 Rf8 Qgd4 Rf7 Rf2 Re1 Rd2 Ng7 Ra8 Re2 Ra6 Bc4 Ra7 Qe6 Ra6 Qd6 Bh3 Be6 Ra7 Ba6 Rc7 Bb7 Rd7 Qc7 Rd5 Qd7 Rf5
2q1nb1N/1N1B3q/k2q4/pq2R2n/bB1B1PRQ/5rr1/1nNrN3/1nK1N3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 d5 f4 Kd7 c4 Kc7 b4 Kb6 g5 h5 g6 e5 g7 d3 Na3 h3 Qg4 h4 Qg3 h2 Qg2 h3 Bb2 d4 Bc1 e3+ Kd1 e4 Qf2 d2 Ne2 Bd7 Bb2 Qc8 Qh4 Nf6 g8N Nh5 Rg1 h1R Ne7 h2 Bh3 Na6 Ng6 Nc7 Nc2 Rg8 Nh8 Ne8 Ne1 Rg3 c5+ Kb7 b6 Ka6 Rg2 Rf1 c6 h1Q c7 Rff3 b7 Bb5 Kc2 d1N b8B d3+ Kc1 Nc3 Bd7 Nb1 Bd4 Ba4 Bba7 Rb8 Bac5 Rb6 Be7 Rd6 Ra3 Qh3 Rc3 Qf5 Rc5 Qh7 Re5 d2+ Kb2 d1N+ Kc1 Qb8 c8N Qb5 Rg1 Rd5 Nd6 Nb2 Nb7 Rd6 Bc3 Rd2 Bd4 Rh3 Rg4 Rhg3 Nc3 e2 Bd6 e3 B6c5 Qb6 b5+ Ka7 Be7 Qc5 b6+ Ka6 Bd6 Qc8 Bb4 Bd1 Nc2 e1Q Ne2 Qg1 Rf5 Qf1 Re5 Qb8 Ne1 Qd6 Nd8 Ba4 b7 Qb6 Nc3 e2 b8N+ Ka7 Nbc6+ Ka6 Nb7 Qc7 Bf2 Qd6 Nd4 Qh3 Ndc2 Qf1 Bd4 Qh3 Nd3 e1Q+ Nd1 Qe2 Nc3 Qef1+ Nde1 Qfd3 Ne2 Qb5 Rg6 Qhe6 Rg7 Qec4 Rg4 Qc8
2nBR2r/brq5/k1P1BnR1/2q3NB/Kn2r3/R3p3/Bn1Q2N1/Bb3rb1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 e5 c4 b5 Kc2 h5 Kb3 d5 g4 Kd7 f4 Kc6 a4 Kb7 c5 h4 g6 e3 c6+ Ka6 g7 e2 a5 e1B g5 d3 g6 e4 f5 e3 f6 d4 f7 h3 Nd2 h2 Ne4 d2 Nd6 d3 Nh3 Ne7 g8R Bf5 g7 Nc8 Ra3 Bf2 Ra1 Nd7 Nb7 Bg1 Ng5 Bc5 f8B Qc7 Bb2 Nf6 Nd6 Ba7 Be2 Rh4 Bd4 Re4 Ra3 Rb8 Bb6 Rb7 Bh5 Bg6 Qe1 d1R Nf5 d2 Nh4 Ra1 Qf2 d1N Ng2 Nb2 Qd2 Rf1 Bfc5 Bh7 Re8 Bf5 g8B Bh7 Kc2 b3+ Kc3 Bg6 Bd4 Bh7 Kb4 Bg6 Kc5 b4 Bd5 Nd3+ Kc4 b2 Kb3 b1Q+ Ka4 Qc1 Ba1 Qc5 Ba2 b3+ Bd4 Qg3 Bd8 Nb4 Bc3 Qc7 Ba1 Bf2 Rg1 h1R Nh4 b2 Rg4 b1N Ng2 Bg1 Rg3 Bb8 Rg4 Ka7 a6 Kb6 a7 Ka6 a8B Ba7 Nf7 Bf5 Rg6 Rhh4 Ng5 Rh2 Qf2 Nd2 Qe2+ Nc4 Qd2 Rb5 Be2 Rh8 Bh5 Rb8 Bb7+ Kb6 Ba6 Nb2+ Kb3 Rb7 Bc4 Re5 Be6 Bb1 Qd3 Re4 Qd2 Nd1 Ka4 Ka6 Rb3 Qf5 Rd3 Qc5 Ra3 Nb2+
BB2B1R1/8/RQp3q1/1Kb4b/4qbR1/1br1N1Pq/r1q1k1B1/Nn2B1nr w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 d4 Ke7 Kd2 Kd6 a4 Kd5 e3 Ke4 a5 b5 a6 h5 d5 f5 g6 f3 a7 f4 d6 f2 g7 c3+ Kc2 f3 Kb3 c2 d7 h4 Be2 f1Q Bc4 f2 Na3 h3 Bd2 c1B Nf3 h2 Ne5 Qg5 d8B Bg4 Be1 Rh3 Nc2 Bh5 Ng6 Nf6 g8B Nbd7 Qe2 Ne5 Rg1 h1R Nf4 Nf3 Be7 Nd5 Bf7 Nc3 Bc5 Rg3 Bb6 Bc5 Nd5 Rgh3 Qd2 Qe2 Ra3 f1Q Na1 Qd3 Qb2 Qf2 Rf1 Ng1 Ra4 Qfh4 Rf6 Rg3 Rg6 Qh3 Rd6 Rf3 g3 Qg6 Rf6 Qd2 Bf1 Qf2 Bg2 Kd3 Rc6 Qd2 Qb1+ Ke2 Re6 Qdd3 Re4 Qd4 Rg4 Qe5 e4 Bf4 Ra5 Rd3 Ne3 Qd5+ Kb2 b3 Ra4 b4 e5 Qf6 e6 Qe4 e7 Qfg6 Kc1 b2+ Kc2 Qh6 Kb3 Qhg6 Qc1 b1B e8R Qh2 Rg8 Qh3 Be8 Bc2+ Kb2 b3 Qb1 Bd4 Ka3 b2 Kb4 Bc5+ Ka5 Bd1 Qc1 b1Q Qb2+ Bc2 Qb5 Qa2 Qc6 Nb1 Kb5 Bb3 Qb7 Rad8 a8B Rc3 Ra6 Rd2 Ba7 Qb2 Qc6 Qc1 Qb7 Ra2 Qb6 Qcc2 Bb8 c6+
3K2n1/qBR2R2/P2p2qq/bN3QR1/7n/5Bbb/rRbR1rNr/r3Bk2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 b5 f4 e5 g4 b3 c4 e4 a4 b4 a5 d3 c5 b2 c6 h3 c7 h4 Ra4 h2 Na3 b1R Nb5 h3 Ne2 e3 Qc2 d2 Ra1 d1B Bd2 b3 Bg2 b2 Ra2 Bd6 Bf3 Ra1 Be1 b1Q Rb2 Nc6 a6 Ra2 Rg1 h1R Rg2 h2 Qe4 Bc2 g5+ Kf7 g6+ Kf6 g7 Qe7 Rf2 Ne5 Rg2 Ng6 Rf2 Nh6 g8R Nh4 Rg5 Ng8 Qd3 Bb4 Qe4 d6 Kc6 Be6 c8B Qa7 Bb7 Rf8 Kc7 Rf1 Qd5 h1Q Rh2 Rf7+ Kd8 Rf2 Rhg2 Rc7 Rh2 Rc3 Qc5 Rca3 Qd5 Ra1 Qc5 R3a2 Rhg2 Kf7 f6 Bh3 f5 Rh5 Nf4 e2 Qc8 Bc3 Rh2 Be5 Ng2 Bg3 Ba5 e1B Qc5 Bd2 Qe5 Be3 Be1 Bd2 Qf4 Kf8 f7 Ba5+ Kc8 Ke7 f8R Rh7 Rd8 Kf6 Rd7 Rh6 Rc7 Rh8 Qg4 Ke5 Kd8 Rh7 Rg7 Rh8 f6 Rh6 f7 Rh8 Bd2 Qhc1 Be1 Qh6 f8R Rh7 Qg6 Rh8 Na3 Kd4 Rff7 Rh7 Qf6+ Kd3 Rg5 Rh8 Nb5 Rh7 Bfc6 Ke2 Qf5 Kf1 Bf3 Ba4 Qc5 Qbg6 Qf5 Bc2 Nd4 Qf8+ Kd7 Rd2 Rb5 Bg4 Nf4 Ng2 Rb2 Rh3 Nb5 Qfh6 Ke8 Nh4 Kd8 Re2 Rg2 Rd2 Re2 Rh2 Ng2 Bh3 Qd5 Rd3 Qf5 Re3 Rd2 Re2 Rd3 Rf2 Rd4 Bd1 Rdd2 Bc2
q1q2r2/2k2N2/p1rqQRn1/NR3NB1/2B1b2P/4r1qN/r1Rnnb2/1N2K3 w - - 0 1 illegal: No possible last move, all moves rejected
K1r1q2r/2N1qNR1/p1q1B3/2bNrn2/P1r3NR/n4Q2/k1qR2N1/4b1Bb w - - 0 1 illegal: No possible last move
4k1r1/R1n3pQ/qB3nr1/n5R1/3P4/Rb1RKNq1/B4n2/1bbNqbBR w - - 0 1 illegal: No possible last move, all moves rejected
kn4bN/q2Pn1Q1/Nr2N3/1N2p3/qB1R3b/5bn1/5NR1/rqKBn1Bq w - - 0 1 illegal: No possible last move, all moves rejected
3R2BK/1BPB4/2qq1Rr1/1q2B1rp/1qrNr3/N1n1k1Nb/4n2B/bQ3b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 d5 c4 a5 b4 f5 b6 d3 e3 d4 b5 h3 b7 a4 g5 a3 c5 d2 g6 f3 g7 f2 b6 h2 c6 f4 c7 d3 Qa4+ Qd4 Nf3 d1Q Bg2 f1B Qb4 a2 Na3 d2 Bb2 Ne7 Kh6 Ra4 Ng1+ f3 Ne2 Nbc6 b8N Bh3 b7 Rg8 Ng3+ Kd3 e4 f2 e5 Nd5 e6 Ke3 e7 Nc3 Rb1 a1R e8B Qc4 Qb6+ Nd4 Nc6 Qb4 b8B Qf3 Bd7 d1Q Rg1 h1R Ba7 Ra5 Qb8 Rg5 Bc5 Qe4 Bd6 Nde2 Nd4 Qc6 Bd5 Qd3 Rd1 Rc1 Qb5 Be7 Rg2 Re8 g8B Bf6 Rg1 Re4 Ba1 Qa6 Bb7 Qc6 Rg2 Rg1 Rh2 Qbc5 Qb1 Qdb5 Be5 Q5d6 Bb2 Qbb4 Rd2 Bg4 Rh4 Bgh3 Rf4 Bfg2 Ba1 f1Q Rd1 Bh8+ Rf6 Rc2 Nh5 Qf5 Bh2 Bf1 Ng3 Qfc5 Rg6 Be5 Rf6 Q5b5 Rd2 Na4 Rd1 Rc4 Rd2 Nac3 Bb2 Rf5 Kg7 h5 Kh8 Rg5 Nb3 Nd5 Nh1 Qe7 Bdc8 Rg7 Rd1 R1g4 Ng3 R4g5 Rd2 R7g6 Rd1 Ndf4 Rd8 Nd5 Bd7 Qed6 Bc3 Bd4 Ba1 Bb6 Be5 Bd4 Bde6 Bc3 Bd7 Ba1 Nd4 Ndc3
n6B/Nqp2rnr/P1Rn2N1/k1rR4/3Q1qbq/2N1N1n1/K4b2/1rR3NB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 h5 Kc2 f5 Kb2 b5 g4 h3 a4 h4 e4 b3 a5 f3 e5 f4 d6 Kc6 g5 f2 g6 b4 e6 f3 d7 h2 g7 h3 e7 Rh7 e8N Ne7 g8N Nf5 Qe2 Ng7 Nd6 Qh4 d8R Bg4 Nh6 Nd7 Ndf7 Nb6 Qe3 Bc5 Bc4 f1R Ra3 f2 Bd5+ Kb5 Nh8 Ra6 Ra1 Na8 Nf5 Rc6 a6 Ba7 Rd7 Rc5 Nc3+ Kb6 Rb1 Ka5 Ng6 Bb6 Ka1 b2+ Ka2 Ba7 Ra1 b1N Bb2 Nd2 Rc1 Ne4 Qf4 Nd6 Ne3 Bb6 Bb7 Ba7 d5 Bb6 Qd4 b3+ Kb1 Ba7 Ba1 b2 Ka2 b1R Rc2 Ne4 d6 Bb6 Rd8 Ba7 d7 Nd6 Rf8 Bb6 d8N Ba7 Rf5 Bb6 Nge2 Ba7 Rg1 h1N Rd5 h2 Rc1 Ng3 Nc6+ Kb6 Rg2 h1Q Rh2 Qe4 Ng1 Qg2 Nce7 Ka5 Nc8 Bb6 Na7 Qe4 Rg5 Qf4 Bh1 Qe4 Re5 Qb7 Rh3 Rd1 Rh2 f1Q Rhc2 Qf4 Rd5 Rf1 Nce2 Rcb5 Rc6 Rc5 Bb2 Qfg5 Ba1 Rf7 Nc3 Qf4 Qd2 Rb4 Na4 N7f5 Bh8 Ng7 Ng2 Rb5 Nc3 Bf2 Qd4 Rb1 Ne3 Rc5
1Q1BKN2/P3B3/1nB3nR/7R/1nqbB1N1/1Br2np1/bbr2r2/qrN1k3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 b5 e4+ d3 a4 g5 c3 d5+ e6 b3 h5 b2 a5 g3 h6 d4 a6 g2 h7 b4 e5 g4 a7 b3 Qf3 g3 Qe3 Ba3 Nf3 g1B Nh2 Qh4 Bh3 d2 Qf4 Kd3 c4 Ke2 c5 d1Q c6 d3 c7 d2 Nc3+ Ke1 Bg2 b1N Na2 b2 Be4 Nd7 e7 Nb6+ e6 f6 Kg6 f5 e8N Ne7+ Kf7 Ng6 Qe5 f4 e7 f3 Ng4 f2 Nef6 f1R e8B Bd4 B8c6 Nc3 Qf4 b1N Nd7 Ncd5 Nf8 Bab2 Ke8 Be6+ c8B Nb4 Qb8 Bg8 Rh3 Rf2 Be6 Qa4 B6d5 d1R Bg5 Nd2 Be7 Nf3 Bb3 Rb1 Nc1 Qf6 Ra2 Qe6 Rh2 Qc4 Rh5 Qaa6 Raa5 Bd5 Rc5 Qa1 Rh6 Rg8 h8B Be6 Qd8 Rc8 Bhf6 Rc2 Rf5 Rg7 Rb5 Rf7 Rbh5 Nfh4 Bd7 Qd5 Bc4 Bf2 Bd6 Bfd4 Bc5 Rc6 Qb8 Rc8+ Bd8 Rff2 Ba4 Nf3 Be7 Qc5 Bcb5 Ba2 Bb3 Qd5 B5a4 R8c3 Bc6 Qc4
1q6/1NnbbR2/rQN4q/q3Kb1p/nq1b2NP/6nN/4BnR1/B1R1N2k w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 b5 Qd3 f5 Qd2 Ra6 Qd1 Rf6 Nd2 exf4 Nb1 f3 Nd2 f4 Nb1 Rf5 gxf5 Be7 Nc3 Bc5 Nb1 Bf8 Kf2 Kf7 h4 Kf6 e4 Ke5 c4 h5 a4 d5 f6 g5 f7 g4 c5 d3 c6 g3+ Ke1 d4 Kd2 f2 a5 b3 a6 b2 c7 b4 a7 b3 a8R g2 Qe2 f3 R8a5+ Kf4 e5 Kg3 e6 Rh6 e7 Ra6 e8N Ne7 Qe3 Nd5 Qe1 Nd7 Na3 b1B Nh3 g1B Rb5 b2 Ng7 Be7 f8N Nc5 Ne8 Na4 Qe3 Bd7 c8N Qa5+ Rb4 Nc7 Be2 Kg2 Nh7 f1Q Ra2 f2 Na7 Bc2 Qh6 b1Q Nd6 Qb3 Bb2 Qb1 Nc6 Qe6 Qf4 Qh6 Ba1 Qb3 Nf6 f1N+ Ke1 Be3 Ng4 Ng3 Nb7 Qg8 Qd6 Qb8 Rf1 Bb1 Kd1 d2 Rc4 Bbf5 Rc1 Bg1 Nc2 Kh1 Ne1 Qb4 Bd3 Qa5 Kc2 d1N Kb3 Nf2 Be2 d3 Kc4 d2 Kd4 d1Q+ Rd2 Qb4+ Ke5 Qdb3 Qc5 Qa5 Qb5 Qbb4 Ra2 Nfe4 Rf3 Bgc5 Qb6 Nf2 Rd2 Bd3 Rf7 B3f5 Bb5 Nfe4 Rg2 Nf2 Be2 Bd4#
r6k/4q3/n3b3/2P1KRN1/Nrp1R2N/nqRB1RB1/R1r1bqp1/3n2bQ w - - 0 1 illegal: No proof kernel
q2K1b2/1Rn1N2R/rrN1p2n/bRp1N3/5Q1q/1qNbr3/1k2BB1P/1nN5 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 Kd5 Kf4 Kd4 Kg5 a5 f4 a4 b4 e3 f5 e6+ f6 g3 b6 e2 b5 e1R d3 a3 b7 c3 b6 g2 Qf3 c2 Be2 a2 Nc3 Na6 b8R Nc7 b7 Ra6 Rb1 a1B Rb5 Nh6 Qf5 Qd5 f7 Qb3 Bb2 g6 Kf6 c1Q Qf3 Qe3 Qf4+ Qe4 Ra8 g5 b8N g4 Ra7 g3 Nd7 Rb6 Ne5 Ba6 Bc1 Bb2 Bd2 Ra1 Be1 Ba3 Rb7 Bb4 Ra7 Ba5 Rb7 Bg7+ Ke7 Bf8+ Kd8 Rh7 Nh3 g1Q Nf2 Qg2 Rg1 Qf3 Rf1 g2 Rg1 Rg7 Rf1 Rg3 Rg1 Bg7 f8N Ra2 Nfg6 Bf8 Rf1 g1N Ne7 Qg4 Ned5 Qg5+ Ne7 Nf3 Rg1 Qf5 Rg2 Rh3 Rg7 Qf7 Rh7 Ra4 Nh1 Nd2 Bf2+ Re3 Ng3 Qb4 Na2 Qc4 Nc1 Kc3 d4 Nb1 d5 Qb3 d6 Kb2 d7 Qd4 Ne4 Ra1 Rb4 Bd3 Rb5 Qa4 Nc3 Qh5 Kc8 Qh4 d8N Qe4 Rb8 Qa8 Ndc6 Qa7 Rb7 Bb4 Qg3 Raa6 Qf4 Ba5 Kd8 Qa8+
4K2k/P1Q5/1Rp1p3/nRqBb2b/1BN1nnR1/4r1r1/qRrRbB2/N1q5 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 b5 g4 c6 d4 e3 f4 h3 a4 h4 g5 b3 d6 e6 d5 b4 f5 b2 f6+ Kh7 f7 h2 g6+ Kg7 a5 b3 a6 e2 a7 e1R Ra2 h3 Be3 Nf6 Ne2 Qe7 Nd4 Ba6 Nd2 b1Q Bf2 b2 Nc2 Be2 Na1 Ne4+ Kb6 Rh4 d7 Kh8 Kc7 Bg7 f8B Qc5 Kd8 Be5 d6 Bh5 Qb3 Re3 Bg2 Be2 Rf1 h1Q Ke8 h2 d8R Nd7 Nc4 Rh6 Be7 Nf8 d7 Bh5 Ra5 Qa2 Rb5 b1N Rdb8 Na3 Rb1 Qc1 d8R h1B Rd2 Be2 Rb6 Rh2 Rbb2 Bh5 Bf3 Bg2 Qc3 Bf1 Qa5 Be2 R6b5 Rg2 Qd8 Rg3 R8b6 Rb8 Qc8 Rb7 Qb8 Rd7 Qc7 Rdd3 Bh1 Rc3 Bd6 Rc2 Bg2 Qd5 Bb4 Qc5 Bf3 Ng5 Bd5 Ne4 Rd1 Nb1 Rd4 Nbd2 Rd3 Nb3 Rd4 Bhg4 Rd2 Na5 g7+ Kg8 Qc8 Ng6 Qd7 Kh7 Qc7 Bh5 g8R+ Bg7 Qf4 Be5 Rg7+ Kh8 Qf7 Ne7 Rg4 Ng6 Qc7 Nf4+
NnK1n3/3bb1n1/1R2R1Bp/8/qBk1N3/brBr4/BQ2np1P/r1R2n1B w - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Kf2 Kd7 c4 Ke6 g4 f5 d4 a5 d5+ Kd6 b6 Kc5 b7 e5 g5 b3 g6 f3 Kg3 h6 g7 b2 d6 f2 d7 e3 Bd2 e4 Kf4 e2 Ke5 e1N Ke6 a4 Bc3 f4 Ne2 a3 Qc1 a2 Nd4 e3 Nb5 e2 Nc7 f3 Bg2 f1N Nd2 b1N Qb2 Ra3 Na8 Nf6 g8B f2 Rg1 Rb3 Bh1 Qc7 Rg6 Be7 Bf7 Qa5 Ne4+ Kc6 c5 Kb5 c6 Ne8 c7 Kc4 Rf6 Ng2 Bg6 e1B Bb4 Nc3 Rc1 Nc6 b8R a1R Rb6 Nge3 Qb1 Nb8 Qb2 Bb7 d8B Nf5 c8B Qa4 Bc7 Bc6 Be5 Bd2 Bd4 Bf4 Bb7 Bfd6 Be5 Kd3 Bc8 Ne2 Bec3 Bb5 Bb7 Rh7 Bd5 Nfg7+ Kf7 Bd7 Re6 Rba3 Ba2 Rb3 Ba5 Ba3 Bab4 Bh4 Kf8 Kc4 Kf7 Bg3 Ke7 Bd6+ Kd8 Rh8 Rb7 Rf8 Rb6 Rf3 Rb5 Rd3 Rb6 Bc6 Kc8 Be7 Bb1 Bb5 Ba2 Bd7+
R2BNN2/rB2PB1Q/Bn3n2/np1Bp2K/4b2b/r4N2/bknqn1r1/5R2 w - - 0 1 illegal: No proof kernel
1bn4K/1Bp1p3/r1rnNkr1/R3rq1b/R6N/PbN4N/3NBr2/2B1n2Q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 b5 Kd4 h5 Ke5 e3 f4 h3 g4 b3 d4 e2 a3 e1N d6 h2 d7 b2 f5 h4 f6 b4 g5 h3 d5 b3 d6 Ra6 Kf5 Bg7 Nd2 b1B+ Bd3 b2 Ne2 Ba2 Rb1 Rh6 Nc3 Qf8 Be2 Bb3 Rf1 h1R Rf4 h2 Ra4 Nc6 Ra5 Bb7 d8N+ Ke8 g6 Rg1 Ne6 h1R Ra4 Na7 Ng5 R1h2 Nh3 Bf3 f7+ Kd7 Ra5 Bd4 g7 Nf6 g8B Rgg6 Ra4 Qc8 f8N+ Ke8+ Be6 Rf2 Bd7+ Kf7 Be6+ Kg7 d7 Be3 Bd5 Ne4 Bb7 Rgc6 Ng6 Bh5+ Ngf4 Rhe6 d8N Rg6+ Ne6+ Kf7 Ra5 Qd7 Ra4 Nc8 Ra5 Ba7 Ra4 Ng2 Qh1 Ne1 Ra5 Bb8 Ra4 Rh2 Ng2 Qd3 Nh4 Rhg2 Ra1 b1R Ra5 Rb2 Rb1 R2g3 Ra4 Re3 Ra5 Rh6 Ra4 Ned6+ Kg5 Rf6 Ra5 Rf2 Kh6 Re5 Ra4 Qf3 Kh7 Qf5+ Kh8 Kf6 Ra5 Bc4 Ra4 Rbb6 Rb5 Bb3 Rc5 Rb4 Rb5 Rg4 Rba5 Rg6
nK4R1/1b2bk2/1q3rNq/1n1rbR1P/5BRN/1p1b1R2/R1NQn1p1/3Bb3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 a4 c5 e4 g5 d4 b5 h4 f3 Kg3 c4 d6 c3 d7+ Kf7 h5 f2 a5 c2 e5 f4+ Kg2 f3+ Kg3 b3 a6 b4 d5 b2 d6 b3 a7 Nc6 Ne2 Bb7 Qd4 Nge7 Ra4 Nc8 Nf4 Qb6 d8R Be7 d7 Rh6 Be2 f1B Qd2 f2 Na3 b1N Rh3 Nd4 Ng6 Nc3 Bd1 Ncb5 Rg8 Bd3 d8R f1Q Rd5 Qff6 Rb4 Rb8 a8R Qfc6 Raa4 Ra8 Rc5 Ra5 e6+ Kf6 Bb2 c1B Nc2 Qd6+ Re5 Qdc6 Bc3 Bb2 Ra2 Ba1 Bb2 Qd6 Bc1 Ne2+ Kh2 Bb2 Re3 g3+ Kh3 g2 Kg4 g1B Rf3+ Nf4 Kg3 g4 Rc4 Bf8 e7 Kf7 e8N Be7 Rf5+ Bbf6 Ng7 Ne2+ Kg2 g3 Rg4 Qa6 Kh3 Qdb6 Kg2 Bd4 Kh3 g2 Kh2 Nec3 Kg3 Bf2+ Kf4 Bh4 Rc5 Bd4 Nf5 Be1 Nfh4 Bh8 Nf8 Rc6 Rf5+ Rf6 Ke5 Ne2 Nfg6 Qba7 Ba3 Nb6 Bd6 Na8 Bc7 Qb8 Bd6 Qf8 Bc7 Qh6 Bd6 Bc8 Kd5 Qa7 Kc6 Bb7+ Kd7 Qb6 Bf4 Bd5 Kc8 Bb7+ Kb8 Nd6 Rfg3 Rd5 Rb2 Nb5 Rf3 Bg7 Re5 Rfd6 Ra2 Bh8 Reg5 Be5 Rf5+ Rf6+
2rb1Bb1/3R2n1/bqB1np2/1N1p1N2/2B4b/B1P1rRq1/1Kbk1N2/Bq5Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kf6 b4 Kg5 g4 d5 e5 h5 b6 a5 e6 h3 b5 d3 Kc3 h2 e7 h4 e8B h3 b7 d2 b6 a4 Ba6 a3 Kb3 f3 Nc3 Kf4 g5 Ke3 g6 a2 g7 f2 Nb1 f1B Be2 Be7 Qe1 Nf6 g8N Nh5 B8b5 Ra3+ Kb2 Ng7 Bd7 Na6 b8B Nc7 b7 Nce6 Bc6 Bh4 Nc3 Qb6+ Nb5 Bd7 Ne7 Rc8 Bd6 Rd3 Rb1 a1B+ Ka2 f6 b8B Be5 Bca3 d1B Rb3 Rc3 Bdb4 Bc7 Kb2 Bd8 Be5 Be8 Bbd6 Bf7 Bc4+ Bfe2 Qf1 Kd2 Nf5 Bg8 Bf8 Re3 Qg2 Re4 Rf3 Re3 Qf1 Bd3 Ka2 B1e2 Ba1 Be4 c3 Bc2 Kb2 Bed3 Ba2 Bc4 Ne2 B4d3 Nc1 Bc4 Rg1 h1Q Nd3 h2 Nf2 Qg2 Rh1 B4d3 Bc4 Qg3 Rg1 h1Q Rg2 Qg1 Rh2 Bg5 Rh7 Bh4 Qb1 Nh5 Rd7 Nhg7 Qf1 Qh1 Qg2 Qf1 Qh1 Be2 Bad6 Qb1+ Ka3 Qg2 Nbd4 Ra8+ Ba6 Rb8 Bab5 Qe1 Kb2 Qg3 Ba3 Bc4 Re7 Rc8 Rd7 B4b3 Be2 Bd3 Bf1 Ba6 Bc4 Bc2+ Nb5 Qb1+
k2bBb1N/1r1nQqBr/2R1P3/1bp1nbR1/2NrR3/1b5p/2q5/K1NR3R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 h5 g4 c5 d4 Kc7 Kd2 Kb7 Kc2 f5 Kb2 a5 b6 h3 e5 h2 d5 c3+ Ka2 a4 b5 a3 g5 c2 d6 h4 d7 f3 g6 h3 g7 f4 Nd2 f2 Bc4 f1Q Bb2 c1R Ne2 f3 Qe1 f2 Bf7 Rh7 Nc4 Ra4 Be8 Nf6 g8R Ng4 Rg5 Rb1 Nc1 Ka8 Bd4 Qf6 d8N Bf5 Nf7 Qg6 Nh8 Nd7 e6 Qd3 Bg7 f1B Qh4 Rb3 Rb1 Qc2+ Ka1 B1d3 Rd1 a2 Rh1 Qf7 b7+ Kb8 Rd1 Nge5 Rh1 Ka7 b8R Bf1 Rb7+ Ka8 b6 B1d3 Rd1 h1B Rc7 Bd5 Rc6 Rab4 Rg4 Bf1 Re4 Rd3 Qe7 Rd4 Na5 Bb3 b7+ Ka7 b8R Rb7 Rbc8 Bb5 R8c7 Kb8 Nc4 Ka8 Rh1 Qe2 Rb2 Qd1 Rg2 Qc2 Rg5 Qd1 Kb2 a1B+ Kb1 Qe2 Rd6 Bc3 Rcc6 Ba5 Ka1 Qc2 Rd5 Bd8 Rdd6 Rd1 Rd3 Rg1 Rd1 Rg4 Ree1 Rd4 Re3 Ng4 Re4 Nge5
n1b2QbR/3b2r1/1brpB3/1p4kP/3B4/1qnKN3/R1BrB1Nb/2R2qB1 w - - 0 1 illegal: No possible last move, all moves rejected
2b2q1N/BK2N2R/Bb1pbrPr/4bQ1N/1Np2B1q/2N5/1k6/n2rbRn1 w - - 0 1 illegal: No proof kernel
1r1b1Rq1/1nb4p/R1b2RNp/N3B2k/1Nn3r1/nnP1q2B/n1N1K3/1Q2N3 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 h6 gxh6 axb5 Qe7 Be3 Qf6 Bc1 Qd8 e4 a5 b4 f5 g4 Kf7 g5 Kg6 e5 d5 b6 a4 b7 a3 e6 a2 b5 f3 b6 f4 e7 f2+ Ke2 f3+ Kd2 d3 e8N d4 Rh3 Ra4 Nf6 Be7 Nd7 Na6 b8R Nb4 b7 Nf6 Bb2 Qg8 Rh4 Bd8 Rg4 Ne4+ Kc1 Nd6 Kd2 Kh5 Nc5 Bd7 g6 Bc6 Be2 f1Q g7 f2 Nb3 Qh3 Na3 f1N+ Ke1 Bc7 Qb1 Qe3 Nf3 Nd2 Na5 Nb3 Rf8 d2+ Kd1 Bd8 b8N Nb7 Rgf4 Bc7 R4f6 Bd8 Na6 Bc7 Qc1 Bd8 Rb1 a1B Bf1 Na2 Ne1 Rc4 Bc3 Bb2 Ra1 Bc7 Nb5 Ba3 Bh3 Be7 Bb2 Bed8 Qb1 Ra4 Na3 Rb4 c3 Ra4 Bc1 Rb4 Kc2 d1N Bd2 Ra4 Nb4 Nb2 Bc1 Nc4 Kd1 d3 Nac2 d2 Ba3 Qg1 Ke2 d1N Bc1 Qa7 Bf4 Ndb2 Bd6 Na3 Be5 Qd5 g8N Nbc4 Ne7 Qg8 Ng6 Qe3+ Kf1 Ncd6 Nbd3 Rg4 Ndb4 Qf4+ Ke2 Ndc4 Re6 Qd4 Ref6 Qe3+ Kf1 Qf7 Nd4 Be7 Rb8 Nb5 Ndc2 Nac1 Ra4 Na2 Re8 N7c5 Nb7 Nba3 Ra6 Qe6 Na5 Nb7 Rb8 Rd8 Rba8 Qg8 Rc8 Rd1 Rcf8 Rd8 Na1 Rb8 Nac2 Qd4 Ke2 Bed8 Ne7 Qb6 Ng6 Qe3+
1qbb4/2Rqk1np/3nP2R/2pK1B2/Q4Br1/N4b1N/2b2r1b/rB1NBB2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 f5 Kf3 c5 e4 b5 a4 b3 d4 b4 g4 b2 g6 c3 a5 c2 a6 b3 g7 Nd7 d5 Ne7 g8N Ra7 g5 Nb6 g6 Qd7 d6 Nc4 Nh6 Rg8 Na3 b1Q g7 b2 e5 Kd8 Be3 c1B Nh3 Bd2 e6 Ba5 Qa4 Ke8 Bf2 Bd8 Be1 Ra8 Ng4 Ra7 Kf2 f3 Ne3 f4 Nd1 Nf5 Rh2 Ra8 a7 Bfe7 Rh1 Bf6 Rh2 Be5 Rh1 Qe4 Ra2 b1B Rb2 Bc2 Rb7 Qec6 Rc7 Qb7 Rh2 Qb8 Rh1 Qdb5 d7+ Ke7 Rh2 Ncd6 Rh1 Rf8 g8B Ng7 Bf7 Rg8 Bg6 Qc6 Bf5 Qd5 Kg1 f2+ Kh2 Qd4 Kg2 Qd2 Kf3 Qd3+ Kg4 f3 Kg5 Bh2 Kg4 Bg1 Kf4 Qdb5 Ke5 Bh2+ Kd5 Qd3+ Qd4 Qdb5 B1d3 f1B Qa4 f2 Bc4 Bg3 Ba2 Be2 Bb1 f1R Rh2 Q8b6 Rh1 Rf2 Rh2 Rb8 a8B Qa7 Bb7 Ra8 Ba6 Qbb8 Rh1 Bh2 Bc4 Bg4 Bf1 Be2 Ng1 Be5 Rh6 Bh2 Nh3 Nge8 Bd3 Rg4 Bf5 Ng7 Qc4 Qa4 Nb5 Kf8 Qd4 Be7 d8B Bh4 Bf6 Ke8 Be5 Bd8 Bf4 Kf8 Na3 Qd7 Nb5 Ra1 Na3 Ke7 Qa4 Bf3+
Br2RB1b/kb1K2pn/r1q4Q/5p1N/1R1n2nb/B3N2R/3Pb1R1/1Rq3b1 w - - 0 1 illegal: Other
1n4R1/3knpNP/2NBq3/2bq3b/5q2/b1r1prRb/2QB1N1K/1N3NbB w - - 0 1 illegal: No possible last move, all moves rejected
2R1Rq2/B3p1r1/nbN1bQKn/1n2q2B/1prq2B1/2N4n/1Pn1RB1k/B7 w - - 0 1 illegal: Other
2r4n/b1rPN3/2RKNQ2/r3B1pq/2BNb1r1/k3p1n1/3N1r2/1q2BnNR w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 g5 h4 c5 f4 a5 b6 e3 h5 g3 d5 a4 b3 a3 b7 e2 f5 e1N d6 a2 f6 c3 d7 g2 h6 c4 f7 c2 h7 c3 Rh6 Nc6+ Ke6 Ra5 b8N Nf3 Qe2 Bb7 Qe5 Nh2 Qf6 Qe8 Bb2 c1Q Qf3 c2 Qd5 Nd4+ Ke5 Nf5 Rc6 Ng3 Bc4 Nhf1 Nd2 Nh6 Bc3+ Ka3 b4 Qb1 b5 c1R b6 e6 Qb5 Bc5 f8N Qh5 Qa6 Ba8 b7 Ba7+ Kd6 e5 Ne6 e4 Qb6 Rc8 h8B e3 Bhe5 Rc2 Qd8 Rc1 Qf6 Nf7+ Ke7 Nh8 Kd6 Rc7 Rb6 Qg4 Nh3 g1R Ne4 Rc8 Bb5 Qc2 Ra6 Qh5 Nc6 Nh2 b8N Nh1 Ne7 Rg4 Nbc6 Ng3 Ncd4 Bc6 Rb1 a1R Bd2 Qa2 Bd3 Rc5 Rh1 Nhf1 Bc4 Qb1 Ng1 Ra2 Be1 Rf2 Nd2 Be4 Rb6 R5c7 Ra6 Rh2 Rc6 Rf2
1n2K3/1bkpr1R1/1N2p3/2BQ2Nb/N5NN/bBrBPnn1/3b1b2/3Rq2q w - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 h5 Kd3 a5 Kc4 g5 Kc5 a4 c4 h2 b4 h4 f4 h3 e3 g4 b6 g3 f5 a3 f6 d3 b5 g2 b7 a2 b6 d2 Na3 Rh4 Nf3 g1B Ng5 Bf2 Bd3 Rh7 Rg1 Nc6 b8N h1Q b7 h2 Na6 Rg7 b8N Ne5 Nc6 Ng4 Ne5 N4h6 Ng4 Nf5 Bb2 Bb7 Bd4 Qb8 f7+ Kd8 Qb3 Kc8 Rad1 a1B Kb6 e6 c5 Qe5 c6 Nh4 c7 Bc3 Bc5 Nf3 Qd5 Qg3 Nc4 Ne7 Bc2 Rh7 Bb3 Nc6 Rg2 Bd6 f8N Rf7 Ng6 Nb8 Nh4 Ra7 Nb2 Be7 Nb4 Ra3 Na4 Bd6 Nd3 Bf8 Nde5 Be7 Nc4 Bb4 Re1 d1B Rgg1 Be2 Rd1 Bd2 Nf6 Rg7 Ba2 Qhg2 Bd6 h1N Ngh7 Rc3 Bb3 Rf7 Kc5 Q2h3 Rg2 Qgh2 Rg7 Ng3 Ng5 Ne5 Kb6 Bh5 Ng4 Bd8 Ba3 Q3g2 Kc5 Qgg1 Kd6 Nf3 Bb4 Bc6 Ncb6+ Kb7 Ba3 Qhh1 Bb4 Qe1 c8B+ Ka7 Ba6 Be7+ Kc7 Bf8 Kd8 Bc5 Bf1 Kb7 Ke8 Kc7 Bd3 Bb7 Ba5 Ba3 Bb4 Qh3 Bf8 Qhh1 Bc5 Re7+
q2N3n/nRp2PBk/2QRq1n1/Nn1B1b1r/n2p4/2BR3r/K3r1R1/2bR4 w - - 0 1 illegal: No proof kernel
2k3r1/Q3PN2/b1NBnpNn/r1bR1rRr/5Np1/4r3/r1qKBN2/3Rr3 w - - 0 1 illegal: No possible last move, all moves rejected
1K1b1k2/1nBb1b2/N3Bqn1/7N/3Qr1rn/Np1Bp3/PR2BRB1/r2q2r1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 b5 g4 e5 f4 d5 c4 h5 f5 h4 f6 d3 Ke3 d2 g6 b3 c5 h3 g5 h2 g7 b4 c6 b2 g6 b3 c7 Bd7 c8B Rh4 Bd3 Nc6 Ne2 Na5 Ng3 Be7 Bca6 Nb7 Rf1 h1R Na3 b1B Rf2 Rg4 Nh5 Rhg1 Bb2 Bc2 Rb1 Rc8 Bc1 Rc4 Rb2 Rd4 Bac4 Qb6 Bb5 Bd8 f7+ Ke7 f8N Qf6 Bc6 Rc4 Ne6 d4+ Ke2 e3 Bg2 e4 Nc5 Ke8 Na6 Ne7 g8B Kf8 Be6 Bb1 Qf1 d1R g7+ Ke8 g8B Ng6 Bd2 Kf8 Ba5 Bc2 Bgf7 Ra1 Bc7 Ra4 Bec4 Bb1 Bfe6 Rb4 Ke1 e2 Kd2 e1N Qe2 Bc2 Qe3 Nf3+ Ke2 Nfh4 Qf4 e3 Qe5 Nf5 Kf3 Bb1 Qf4 Bc2 Ke4 Nfh4 Kd5 Bd1 Be2 d3 Qd4 d2 Bcd3 Bc2 Bef3 d1Q Bfe2 Nc5 Kd6 Rc4 Qe5 Rce4 Qd4 Nb7+ Kd5 Bc8 Kc6 Bd7+ Kb6 Bb1 Ka7 Bc2 Bb5 Bd3 Kb8 Bc4 Bd3 Bd5 Bbc4 Rf1 Be2 Rg1 Bcd3 Bc4 Bf5 Bg8 Be6 Bf7
B2B4/b2r1kNN/n4b2/B1n2nRp/1P1R2r1/Bq2qr2/b3K1p1/r1Q1N2B w - - 0 1 illegal: No proof kernel
q1r4B/BQ2qN1q/1KR1n2b/b2pP3/B1r3q1/B1RNn3/2R1brkp/2B5 w - - 0 1 illegal: No proof kernel
1B2k3/BKn4R/r3bR1N/1Np1nBqr/bq2p1Rq/3n2bB/4Q2P/bB6 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 Ke2 c5 f4 e3 d4 e5 a4 g5 d5 b5 f5 g3 Kf3 g4+ Ke4 e2 a6 e1N f6 g2 a5 b4 d6 b3 Kd5 b2 d7+ Kf7 a7 c3 a6 c2 Nh3 g1Q Nc3 b1B Nf2 g3 Ng4 g2 Bf4 c1Q Qe2 Qf2 Rg1 Qb6 d8B Qbb2 Bb6 Nd7 Kc6 Nd3 Nb5 Rh5 Nh6+ Ke8 Ra2 Qh4 f7+ Ke7 Kc7 Bg7 f8R Qb4 Ra1 Bf6 Rf7+ Ke8 Rh7 Ba2 Bg3 Bb3 Ra4 Qbc3 Rg4 Qb4 Rh1 g1B Bh3 Bf2 Rf1 Ba4 Kc6 Bd4 Rff4 Bg5 Rf6 Bf4 Kc7 Rb8 Kc6 Ne7+ Kc7 Nd5+ Kc6 Ba1 a8B Qe3 a7 Ne1 Bb7 e4 a8B Nd3 Ba7 Bd6 Ba6 Qeg5 B6b7 N7b6 Bf4 Bf5 Bc8 Nc4 Be6 Rd8 Bb7 Bde5 Bbc8 Rd6+ Kb7 Ra6 Bg8 Bg6 Bf5 Bf7 Bd2 Bg3 Bf4 Nc7 Bd6 Na8 Bc7 Nce5 Bcb8 Ba2 Bb3 Nc7 Bc2 Bf7 Bb1 Be6
q2R1B2/qbRb1nbq/r4N1r/1P3b2/Rn1p3K/5p1N/1Q2N1k1/1NNB3n w - - 0 1 illegal: No possible last move, all moves rejected
R4B2/6nB/q1r1n2Q/pR2N3/1bp1r1B1/K3bR2/2kPqNn1/Rr1b1n1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 b4 Kd6 g4 Ke5 g5 Kd4 g6 f5 g7 a5 e5 h5 b6 c5 e6 f3 e7 f2+ Ke2 h3 e8R c3 b5 f4 b7 h4 b6 c4 Na3 h2 Qb3 f3+ Kd1 h3 Kc2 Qd6 Re3 Ra6 Re7 Bg4 Ra2 Nd7 b8R Nh6 g8B Nf5 b7 Nc5 Bb2 Ne6 Kb1 Rc6 Bg2 Kd3 Rf7 f1N Qa4 f2 Ba1 c2+ Kb2 Rh4 Qb5 Nfg7 Qh5 Ne3 Ra8 f1N b8R Bd1 Qh6 Re4 Bf3 Ng2 Bg4 Be7 Rf2 Bg5 Nb5 Be3 Nd4 Qe7 Ra4 c1B+ Ka2 Ba3 Rf3 Bb4 Bh7 Bc3 Rb5 Qb7 Ka3 Qa6 Nde2 Kc2 Nf4 Rc8 Nd3 Rc6 Rf2 Ne8 Nf3 N8g7 Rg1 h1Q Nfe5 h2 Rf3 Ngf4 Bb2 Qg2 Rh1 Qe2 Nf2 Ng2 Ka2 Bcd4 Ba3 Ba1 Bf8 Bc3 Rg1 h1R Ka3 Rh5 Rh1 Rf5 Ka2 Rf7 Ka3 Rb7 Rab4 Rbb6 Rb1 Rb7 Ra1 Rb8 Rd5 Rb1 Rb5 Bb4+
2BqNn1K/n5R1/n1k2qRr/p5pB/P2b1r2/bBbQ1NR1/1B4q1/2B1n3 w - - 0 1 legal: proof: g4 b5 d4 g5 c4 bxc4 h4 e5 h5 exd4 Qc2 Bb7 Qb3 Be4 Qd1 Bg6 hxg6 f5 Qd3 fxg4 Qd2 Ba3 Qd1 Bf8 Kd2 a5 f4 d5 e4 Kd7 b4 h5 a4 c5 g7 g3 b5 h4 f5 h3 f6 c3+ Kd3 g2 b6 c2 f7 c4+ Ke2 h2 Kf3 d3 Kg4 d4 Kf5 c3 Kg6 d2 b7 d3 e5 Nf6 g8B Kc6 e6 Bg7 f8R Nh7 e7 Na6 Nf3 g1B b8B B1d4 Bb2 c1N Rf7 c2 Bh3 Qb6 Re1 h1Q Bc8 Qg2 Na3 Qd8 Qe2 d1N Nc4 d2 Nd6 Nc3 Qd3 d1Q Ne8 Nb5 Bf4 Na7 Ra3 Rb8 Re4 Rb4 Re6+ Qd6 Bd2 Bc3 Be3 Bgd4 Rg7 Rc4 Kh6 Rb4 Reg6 Qf6 Bb3 Rc4 Qe2 Nd3 Bec1 Ne1 Qd3 Bc5 Qe2 Qd8 Qd3 Rg4 Nc7 Rf4 e8B+ Qd7 Bef7 B5d4 Ne8 Qdd6 Bfe6 Qd7 Bg4 Qd8 Bh5 Bd2 Ng1 Bb4 Qd1 Nf8+ Rh7 Bb6 Ba2 Bd4 Rg3 Bd2 Nf3 Bb4 Qd3 Ba3 Be3 c1B Bf7 Bd2 Bb3 B2c3 Bec1 Qe6 Rf6 Qed6 Kg7 Qe6 Rh6 Qed6 Rg6 Rh6 Kg8 Nh7 Rg7 Qe6+ Kh8 Qed6 Rfg6 Q8f6 Ba2 Qdd8 Bb3 Nf8+
Bq3Q2/2nN2bR/kbb1p2b/2rR1rRq/p2Nq3/Br3Rn1/3KPRN1/8 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Qd3 f5 Bf1 f4 Qg3 fxg3 c4 a5 f4 g5 b4 d5 h4 Kd7 c5 Kc7 b6+ Kb7 f5 e6 f6 d3 f7 d4 b5 g2 h5 d2+ Kd1 g3 h6 a4 h7 g4 Rh6 Ne7 Rh2 Ra5 Rh1 Na6 Nc3 Nf5 Rh2 Nc7 Nh3 g1R Ba3 g2 Nf4 Bg7 f8Q g3 Rh3 Rg8 h8R Bd7 R8h7 Qb8 Kc2 Be8 Rd1 Bc6 R3h5 Rh1 Rg5 g1B Bg2 Rh5 Bh1 Be3 Ng2 Bf4 Rf1 Rh3 Rf3 Rh8 Ne4 Rh5 Nf6 d3+ Kc3 d1Q Rf2 Bh6 Nd7 Qb1 Rf3 Be5+ Kd2 Beg7 Rf2 Ka8 b7+ Ka7 b6+ Ka6 Rf3 Rb5 Rf2 Rb3 Rf3 Qa7 b8R Rg8 Rd8 Qb8 b7 Rh8 Ne1 g2 Rf2 g1B Ng2 Ng3 Rf3 Bd5 c6 Bb6 Rf2 Ne8 c7 Bc6 c8N Nc7 Nd6 Rg8 Nf5 Rh8 Qe7 Rf8 Nd4 Rf5 Rf8 Rc5 R8f3 Rf5 Qf8 Qc2+ Ke1 Rc5 Rd5 Qc4 Kd1 Rf5 Ke1 d2+ Kd1 Qa7 b8R Qd3 Re8 Qe4 Re7 Qb8 Rf7 Bf6 Rfg7 Be5 Rg5 Beg7 Rc3 Qg4 Kc2 Qh5 Kd3 d1Q+ Ke3 Qb1 Kd2 Ne8 Rcf3 Qe4 Ne3 Rcc3 Rd6 Bd5 Rf4 Qe5 Bf3 Rc7 Ng2 Rc5 Be4 Bb7 R4f3 Nc7 Bc6 Qe4 Rd5 Bc8 Ba8 Bb7 Qe8 Bc6 Qc8+ Ka7 Qf8 Ka6
1B3NK1/rbq1Rn2/3bp1r1/kPB1NBr1/1n1RB3/pq4qB/2bR4/Q1r5 w - - 0 1 illegal: No possible last move, all moves rejected
2rq3B/2N1nRnq/2bp2BK/2Br2R1/1B1rpb2/1P3Q1b/B3Rq1k/b1N5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c3 e3 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 a5 g4 d6 b6 h5 f3 d3 f4+ Ke4 b7 a4 f5 e5+ f6 a3 c4 h3 c5 h4 c6 e2 c7 e1Q Bd2 a2 Rh2 Be6 c8R Rh5+ Kg6 Be7 f7 Bg5 f8B Bf4 g5 Nh6 Bb4 d2 Rc7 Nf5 Ne2 Kf3 Nbc3 Nc6 Rf7 Rc8 b8B Qg3 Rc1 a1B Nd5 Qg1 Rg2 h2 Rc2 h1B Ba7 h3 Bg7 h2 Bh8 Qf2 Bac5 Bd7 Nc7 Nce7+ Kf6 Bc6 g6 Rg5 Rg1 Bg2 g7 h1Q Nc1+ Kg3 Qf3+ Kh2 Bd3 d1R Re2 Bh3 Bb1 Rd4 b3 e4 g8B Rh5 Bh7 Qhg2 Ba2 Qgg8 Bg6 Ng7 Rg4 Rhd5 Rg3 Be5+ Kg5 Ra8 Rg1 Rc8 Kh6 Bf4+ Rg5 Qh7+
2q5/bNR2Bq1/RQ1p1R2/p1nr2r1/1nb2R2/bn1PB1n1/K6r/N1RNk3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 e4 Ke7 h4 Kd6 c4 Ke5 h5 Kd4 b6 a5 d3 g5 Kd2 f5 Kc2 b3+ Kb2 g3 b7 f3 h6 f2 h7 g4 c5 f4 c6 g2 c7 g3 e5 f3 e6 Nc6 b8R Nf6 e7 Ba6 c8N Ne4 e8R Nc5 Rh6 Bc4 Qe2 Nb4 Rc6 Nc2 Nh3 g1Q Ra6 g2 Nd6 Qc8 Qe6 Be7 Be2 f1R Bd2 f2 Bc1 Rd1 Bh5 f1N Nf2 Ng3 Bf7 Re1 Rab6 Re5 Nd2 Ke3 Ra6 Ke2 Nb7 Ke1 Qb6 Rd5 Rf8 Bd6 Kb1 b2 Nb3 Be7 Ka2 b1N Nd1 Nd2 Rb1 Qd4 Ra1 g1B Rb1 Rg8 h8R Rgg5 Rh6 Qg7 Rf6 Ra7 Kb2 Bd6 Na1 Ndb3 Ka2 Bd4 Be3 Be7 Nd8 Rc7 Rba8 Rc6 Rf4 Rh6 R8a7 Rh2 Rc1 d6 Qb5 Nce4 Re8 Bef6 Rc7 Ba7 Re6 Bb2 Ref6 Nec5 Nb7 Ba3 Qb6 Nb4+
2r4q/2n4R/1Qp2r2/2r1kBRP/KB1RB2p/1N2nbbb/1Nqr1R2/2n2R2 w - - 0 1 illegal: No proof kernel
k2qQR2/3R1R1R/1PKN1Nnp/2nB4/p5r1/1R2q1b1/rb1nb2B/1N3n1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 b4 Kd7 c4 Kc7 f4 Kb7 g4 e5 g5 a5 c5 h6 f5 e3+ Kd3 h3 g6 h2 g7 e2 f6 e1B f7 Ne7 g8R Bg3 b6 Ng6 b5 Nd7 Bf4 Bg7 Rf8 Rg8 c6+ Kb8 Ra4 Ba6 b7 Qe8 Nh3 Nc5+ Kc2 d3+ Kc3 d2 c7+ Ka7 b8R d4+ Kc4 e4 Kd5 e3 Qe2 d1N Nf2 d3 Ne4 d2 Bg2 Bb2 Nf6 Qd8+ Kc6 Nc3 Re4 d1N Re7 N3e4 Re1 h1R Rd7 Nd2 Bd5 Rg7 Rh8 Rg8 f8R Rg7 Qh5 e2 Rf1 e1Q Rh7 Ne3 Qe5 Qf2 Qe8 Qe2 Rf3 Nef1 Rb3 Qe3 Rff7 a4 Rc8 Rb8 b6+ Ka8 Bd6 Be2 Be5 Nh8 Bf4 Rg4 Bd6 Ng6 Bf4 Qde7 Rcd8 Qf8 c8N Rb7 Bc7 Rb8 Nd6 Rc8 Qe4 Qe7 Rdf8 Re8 Qe5 Qd8 Qh5 Ree4 Qe5 Rc4 Qe8 Rc2 Nc8 Bh4 Bh2 Bg3 Nd6 Ba1 Nde4 Ra2 Nd6 Bb2
Kbq3B1/1Br2RR1/bp4rr/N7/bR2R1p1/1q2rq2/QPR2n2/1N2knN1 w - - 0 1 illegal: No proof kernel
R2n1r2/q1n3Bb/bp2P3/B2NbqQr/k3p1R1/3qb1NK/B1R3B1/n4B2 w - - 0 1 illegal: No possible last move, all moves rejected
4b1N1/r1Kn1npq/Bn2k1B1/3N4/R1QBb1rN/b2N1q1N/1r2pP2/3Rr3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 a5 h4 d5 b4 e5 c5 e3 Kd3 g3 c6 g2 h5 e2 c7 e1R h6 a4 b6 a3 b5 a2 b7 Qf6 h7 Ba3 b6 Ke6 Nc3 Qf3+ Be3 Nd7 b8N Bb7 c8B Nh6 Qc1 Nf7 Nh3 g1R Na6 Rg4 Nb4 Re8 h8N e4+ Kc2 d3+ Kb3 d2 Ba6 d1N Ka4 d4 Kb5 d3 Ng6 d2 Nd3 Rf8 Bd4 e3 Nh4 e2 Nd5 Ne3 Qc4 d1B Ka5 Bc6 b7 Bc2 b8N Rg8 Rd1 a1Q Rh2 Bb5 Nc6 Qb1 Nce7 Bba4 Bb7 Rgb8 Ng8 Bc6 Bc8 Rb2 Bb7 Nb6 Rg2 Be8 Bc6 Nd7 Bb5 Nf8 Kb6 Nd7+ Kc6 Rd8 Kc7 Ra8 Nc1 Be4 Nd3 Nf5 Ba4 N5d6 Bc2 Nc8 Rg3 Ncb6 Rg1 Qc1 Rh1 Qh6 Ra1 Bc5 Ra4 Ba3 Rg1 Qh7 Rf1 Rc1 Rd1 Ra1 Rd2 Rh1 Rd1 Re1 Ne5 Bg6 Be4 Qh5 Nd3 Bh7 Bg6 Qh6 Bh5 Be4 Bg6 Qh8 Bc8 Qh7 Ba6 Ra7+
1RB1r2r/2RQ1p1R/3n3b/3P1qn1/R2B4/2qBNbk1/bbp1n3/2rRN2K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 d4 Kd6 e4 h5 b4 a5 g4 c5 Kg2 h3+ Kh2 a4 b6 c3 b5 a3 b7 a2 g5 f3 b6 c2 g6 h4 g7 f2 Qd2 c4 Na3 c3 Bb2 c1R Qe1 c2 Bc3 Ne7 g8R Qc7 Rg6+ Be6 Rg4 Nf5 Bd3 f1Q Qd2 Bh6 Nf3 Nd7 b8R Ne5 Rb7 Rae8 Ne1 Qf4+ Kg1 h2+ Kg2 Nf3 e5+ Kd5 Nc4 Nd6 Qd1 Qc8 Rc7 Ng5 b7 Qf5 Rb1 a1B b8R Bb2 Qd2 Bd7 e6 Bb5 e7 h3+ Kg3 Ke6 Ne3 Bc4 Qd1 Kf6 d5+ Kg6 Bd4 Kh5 Qf3 Ba2 Kf2 Ref8 e8B Rfg8 Bd7 Re8 Ra7 Qc3 Bc8 Rd1 Rc7 Rc1 Rf1 h1N+ Kg1 h2+ Kg2 Qf6 Qf5 Ng3 Rh1 Ne2 Qd7 Qf5 Ra1 Ne6 Rg7 Kh4 Rh7 Ng5 Rg1 h1B+ Kh2 Bb1 Ra4 Bf3 Rh1 Ba2 Rg1 Bh5 Kh1 Kh3 N1g2 Kg3 Rd1 Bg4 Ne1 Bf3+
2k2n2/BR1nPN1p/R3n1b1/qbrbRB2/N1q3r1/1Q1q2b1/3RN1p1/4K2R w - - 0 1 illegal: No proof kernel
3R1Kb1/k2pB1q1/1R1n3r/2rR1PB1/2B1n2Q/b1qb1NB1/2qb2pn/N1B5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 e5 f4 g5 c4 a5 h4 g3 b4 g4 h5 g2 f5 g3 b6 e3+ Kd3 a4 Ke4 a3 Kd5 e4 b7 a2 b5 d3 c5 d2 b6 e2 h6 e1Q h7 e3 c6 e2 c7 Ba3 Rh2 Nc6 b8B Nd4 b7 Ra5+ Ke4 Rc5 Qb3 d1B Qa4 Nb5 Nd2 Bb3 Rb1 a1Q Ngf3 g1N Rg2 Ba2 Nb3 Qg7 Na1 Qec3 Rb2 e1B Bc4 Qdg5 Rgd2 g2 Rd5 Qgd2 Ba7 Ke7 b8B Ba6 c8R Qdc2+ Kf4 Nd6 Rd8 Nf6 Rb6 Nfe4 Bc7 Rf8 h8B Rf6 Bab8 Rh6 Qb4 Qgd4 Kg4 Bd2 Bf6+ Kf7 Bg5 Qg7 Rc8 Bb3 Bd8 Ke8 Qa4 Nb5 Bg3 Nbd6 Ne1 Nf3 Qb4 Rg6 Kh5 Nh2 Nf3 Ba2 Bb3 Bd3 Bc4 Bb3 Rcb8 Rf6 Be7+ Rc8 Bf8 Kd8 Be7+ Kc7 Qa4 Rg8 Rd8 Re6 Ra6 Kb7 Rc6 Re5 Qb4+ Ka7 Rb6 Qf7+ Kh6 Qf8+ Kh7 Rg6 Be1 Qf6 Bg3 Rh6+ Kg8 Ba2 Rd4 Rc5 Rd5 Qfe5 Kf8 Bb3 Ba6 Nf6 Qh4 Nfe4 Rd4 Bf7 Bc4 Bg8 Rd5 Qg7#
q1n5/1rp3Bn/3p1B1Q/b4b1N/4r1NN/qbRP1q2/1rrN1N2/2k2KRR w - - 0 1 legal: proof: e4 b5 c4 g5 b4 f5 exf5 a6 h4 gxh4 Be2 Bg7 Bf3 Bf8 Bc6 bxc4 b5 Bb7 b6 Bc8 Bb5 axb5 f4 Kf7 a4 Kf6 g4 e5 a5 h5 b7 e4 a6 h3 d3 h2 a7 h4 Qc2 h3 Ba3 e3 Qb2+ c3 Qe2 c2 Ra2 c1Q+ Qd1 b4 Ra1 e2 Nd2 Nc6 b8N Nce7 Nc6 b3 Ne5 Rb8 a8R Rb7 Bb2 d6 R8a5 Bh6 R5a3 Qc5 Bc3 b2 Qc1 b1R Rb3 Qa3 g5+ Kg7 g6 Kf6 g7 Rb2 Kf2 e1R Rb1 Re2+ Kf1 Re4 Bd4 Bd7 Rc3 Qda8 Ra1 Nc8 Ng4+ Kf7 f6 Ke6 f5+ Kd5 f7 Nf6 g8N Nh7 f6 Bf5 f8N Bg5 Ndf3 Bd2 f7 Rc2 Bf6 Be1 Rc4 Ba5 Rc3 Rbb2 Ng6 Rb7 Nfe5 Kd4 f8B Rbb2 Nf2 Rb7 Qb2 Ke3 B8g7 Kd2 Qa2 Rcb2 Qe6 Rc2 Neg4 Rbb2 Ra2 Kc1 Nf3 Rb7 Rg1 h1Q Nd2 h2 Nh4 Qf3 Rb2 h1B Rb5 Bg6 Rh5 Bf5 Rh6 Rc4 Qe3 Re4 Rh5 Rb2 Qh6 Rb7 Ne7 Re8 Neg6 Reb4 Nf4 Ree4 Rg5 Rb2 Nh5 Qf4 Rg6 Bf3 Rh1 Bd1 Nh2 Qf3 Rgg1 Bb6 Ng4 Ba5 Rc5 Rcc4 Rc6 Bb3 Rc5 Rcc2 Rc6 Qa2 Rc3 Qa3
1N2nRqB/1P2Q2b/R1q1R1N1/B2n1n2/k3p1r1/1r2p3/q3K1BB/Bq1r2b1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 a5 b4 e5 c4 g5 h4 d5 b6 Kd7 h5 Kc6 c5 e3 b7 d3 f5 Kb5 h6 a4 c6 d4 h7 a3 c7 a2 f6 g3 f7 g2 Rh4 g4 Qb3 g3 Kd1 Ne7 Qb2 Nf5 Rh6 Ka4 b5 d2 b6 Qd6 Re6 Rg8 h8B Qc6 Ne2 g1Q Na3 g2 Nb5 Nd7 b8B Nf6 b7 Rg4 Qb1 Bc5 f8B Ne8 Nf4 Qh2 Ng6 g1Q Qe4 Ra6 Be7 Rb6 Na7 Rb3 Bf8 Qhh1 Ke2 d1N Bd2 Nc3+ Kd3 Nd5+ Ke2 Qg3 Bg2 Qb1 Bfg7 Bd7 c8R Bb6 Rd6 Be6 Be1 Bg8 Ba5 Bh7 Bc7 Qh4 Re6 Qg5 Nh4 Qg6 Rd8 Qf7 Ng6 Qg8 Ra8 Qh1 Rf1 a1Q Rf4 Qhb1 Rf3 Qc5 Nc6 Qaa3 Nb8 Qc6 Ra6 Qaa2+ Qc2 e4 Bce5 Bc7 Bh2 Bg3 Rf1 Bf2 Qd2 Bg1 Qc2 Nh6 Rf8 Nf5 Bf6 Qaa1 Qc5 Qa3 Qe7 Qaa2+ Bd2+ Kb5 Rb6+ Ka4 Bh4 Qa3 Ba5 Qaa1 Ra6 Qa3 Bhe1 d3+ Kf1 d2 Ke2 d1R Bec3 Qaa2+ Bb2 Qa3 Ba1 Qaa2+
N1nn1bR1/1p2Q3/b1R2B1q/1B1r2b1/1NNr2N1/qKBPpb1k/3qN3/6n1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kd7 a4 h5 g4 e5 f5 c5 d6 b3 g5 b2 a5 e3 a6 e4 g6 c4 g7 h3 f6 Ke6 a7 Kf5 f7 h4 d7 h2 Na3 b1Q Qc2 Kg4 Kd1 h3 Qc3 e2+ Ke1 Qa2 Nf3 Rh4 Bb2 Ne7 g8N Nbc6 Qf6 c3 Nd4 c2 Nc4 c1B Bc3 Qa3 Nh6+ Kg3 Ra2 Qda5 d8B Bd7 Nc2 Nc8 Nb4 Be8 Be7 Nd8 Ng4 Bb5 Rc2 Ba6 Qg7 Rh5 Bef6 Rd5 Qg5 Rb8 a8N Rd4 Qg7 Qg5 Rg1+ Kh4 d3 h1Q Bg2 h2 Bf3 Kh3 Qh7+ Bh6 f8N Qf4 Ng6 Qd2+ Kf2 Rd5 Qe7 e1N+ Kf1 e3 Bd1 Bg5 Nf4+ Kh4 Ne2 Kh3 Nh6 Nf3 Ng4 Bb2 Rc1 Ba1 Ba4 Bb2 Bb5 Ba1 Bce5 Bd4 Rc2 Bc5 Bc3 Rd4 Qc7 Bf8 Qe7 Ne5 Rc1 Qc6 Rg2 Nf3 Rc2 Ng1 Rc1 Qdb2 Ke1 h1B Kd1 Rd5 Bfd4 Qh6 Bf6 Qba1 Kc2 Rd4 Rf1 Qe1 Rf5 Qf2 Rc5 Rd5 Rc6 Qe1 Rf2 Bf3 Rg2 Qd2+ Kb1 Rd4 Nce5 Na7 Nc4 Bf4 Nge5 Ne6 Rg4 Rbd8 Rg8 Nc8 Ng4 R8d5 Qg7 Nd8 Qe7 Qe1+ Kc2 Bg5 Qc5 Qac1+ Kb3 Qed2 Qe7 Qa3+
NRn1b1BB/1p2q2r/BR1n4/5B1n/2KN3Q/2Pr2pq/k3r1N1/B2b2bn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 Kd3 Ke6 a4 Kd5 h4 g5 e3 f5 h5 g3 a5 g2 a6 g4 c3 b3 h6 b2 a7 f4 e6 f3 h7 f2 e7 g3 e8B Nf6 Nf3 g1R Na3 b1N Ne5 Rg2 Qh5 Bc5 Qh2 Nc6 Qh5 Qe7 Qh6 Nh5 Ng6 Nd2 Nc4 Ne4 Nge5 Nd6 Bg6 Rb8 a8N Na7 Be2 f1Q Rb1 Rh2 Rb6 Qh3 Bf1 Re2 Nf3 Rd8 Bf5 Rh8 Nfd2 Rd8 Bb2 Rh8 Kc2 d3+ Kb3 Bd4 Nf3 d2 Ba1 d1N Qf4 Nf2 e4+ Kc5 Rh2 Nh1 Qh4 Bg1 Ne3 Rd8 Ng2 Rh8 Ka4 Kc4 Nd4 Rd8 e5 Rh8 Ka5 Rd8 Nb5+ Kb3 Nd4+ Ka3 h8B Ka2 Bg7 Rh8 Kb4 Rh7 e6 Nf7+ Kc4 d5+ Kd3 Nd6 Be5 Bd7 Bh8 Qg5 e7 Rd8 e8B Nac8 Beg6 Be8 Bf7 Qe7 Bg8 Nf7 Nf3 d4 Kc4 d3 Nd4 d2 Ne3 d1B Rf2 Rd2 Ng2 Rc2 Re2 Rb2 Ree6 Re2 Rf6 Ng5 Rf8 Ne4 Qf6 Bd7 Nb5 Rb2 Kd5 Na7 Bd3 Re2 Qh4 Rc8 Re8 Rc4 Rc8 Nd6 Rb8 Rf4 Nd4 Be8 Bb5 Nac8 Ba6 Rf3 Kc5+ Nf7+ Kd5 Rd3 Kc4 Nfd6+
1nK1NBk1/Rpbp1qn1/2N2B2/q5r1/BB4P1/1R1BQb2/2r1b2q/2R1br2 w - - 0 1 illegal: No proof kernel forced: wxLB
1K3B2/p6p/1R1nBq2/2N3Q1/1rP2Bb1/BNr4R/1rkBbrn1/b1n1qN2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 d5 f4 e5 b4 h3 g5 Kf5 g6 h2 g7 d3 Kc3 e3 b6 Ke4 b5 d2 b7 e2 f5 e1Q f6 d4+ Kb3 d3 Ka4 Nh6 g8N Nc6 b8B Nf7 b6 Nd4 Ka5 Bg4 Ka6 Ne2 Kb7 Bg7 Ba3 Nc1 Bh3 Be2 Qc2 d1R Nf3 Rd2 Nd4 Ke3 Bc7 e4 Nb3 Qf8 Qa2 Rb2 Be6 d2 Bf4+ Kd3 Kc7 d1R b7 e3 b8B Kc2 N1d2 Nd6 Nf1 Rd3 f7 Rc3 Rb1 Bg4 Qa1 e2 Nf6 Qe7+ Nd7 Qf6 Bd2 Rf8 Ndc5 Bh8 Rg1 h1B Rg3 Bhf3 Rh3 Bg7 Kd7 Bh8 Bc7 Rfb8 f8B Rb4 Qa2 Nb5 Bcf4 Nd6 Kc7 Rd8 B8h6 Rf8 Bg7 Qeh4 Qa1 e1N Qa2 Ng2 Qa1 Re8 Bf8 Qe1 Qa2 Be2 Qa1 Rf3 Qa2 Rf2 Qa1 Ra2 Qe5 Rb2 Qg5 Bg7 Bd5 Re3 Bf7 Rc3 Be6 Ra4 Kb8 Ra2 Na5 Bh8 Rb4 Rb2 Rb6 Rab4 Nab3 Qg7 Na4 Rb1 Ka8 Rg3 Bde3 Qe7 Kb8 Ba1 Bd2 Rc3 Nac5 Rb2 Bg7 Qf7 Bf8 Qf6
2k1N1B1/q7/NR2bB1n/B2np2n/PBn2QN1/p1rn2r1/2Bn1R1b/1b1K4 w - - 0 1 illegal: No proof kernel
B1bN1Rb1/2rnR2K/1RB1n2Q/p2q1n1P/2r4n/B1B1b3/pn3kNB/5n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Ke7 e4 Kf6 d4 Kg5 b4 Kh4 e5 g5 b5 c5 d6 f5 h3 a5 b6 f3 Ke3 Kg3 d5 f2 h4 c4 b7 c3 e6 f4+ Ke4 c2 Kf5 f3 Kg6 a3 d7 a2 d6 Rh7 e7 Nh6 e8B Nf5 h5 Bh6 Ba3 c1N Qe2 Nd3 Nc3 Nb2 Bg2 f1N Re1 f2 Qe6 Ra6 Bf3 Rc6 Nd5 Rc4 Nb4 Rf7 Bc6 Re7 Re4 Kg2 Ne2 g3 Qf6 g4 Nf4+ Kf3 Ng2 Be3 Bd5 Rf7 Nc6 Ke2 Ne1 g2 Re7 g1N Ng2 g3 Qg7 Nh3 Qh6 Ng5 Rh4 Rc2 Rb4 Rc4 Rb6 Ne6 Be4 Nh2 Bd5 f1B Bf3+ Kf2 Bd5 Qc7 d8R Nd7 b8B Qb7 Bc7 Be2 Bb8 Nf1 Bc7 Ndc5 d7 Bd1 Be5 Bb3 Bc3 Rh7 Bf7 Qa8 Rf8 Qb7 d8B Nd7 Bc7 Qa8 Ne1 g2 Be8 g1N Nd8 Nf3 Ng2 Qc6 Be4 Qd5 Bh2 Rf7 Qg7 N3h4+ Kh7 Rf6 Qh6 Rg6 Nb7 Rg4 Bf3 Rc7 Nd8 Rgc4 Be4 Qb5 Bc6 Qd5 Ba8 Qd3 Rff7 Nb8 Bac6 Rc5 Bf6 Nf4 Rf8 Bf7 Ba4 Ne6 Bc3 Rc4 Bd1 Qd4 Bf3 Qd1 Ba8 Qd5 Bb5 Nd7 Bbc6 Bg8+
b2K1b2/6r1/r3k1Nb/N3B3/rr2PqR1/1pQN2n1/B1Rn1pRN/2rb2N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 b5 Ke4 c5 Ke5 h5 d4 f5 a4 h3 g4 h4 a5 b3 g5 c4 g6 b2 a6 c3 g7 b4 a7 h2 Nd2 b1R Ra4 c2 Bb2 c1B Qb3 f3 Qc3 f2 Ndf3 Nf6 g8N+ Kf7 e3 f4 d6 h3 d7 Rh6 d5 Qc7+ d6 Nh5 Ne7 Ng3 Ng6 Na6 d8R Qc4 d7 Nc5 Bg2 Ba6 Rc8 f1R Ba1 Nce4 d8N+ Kg7 Rc6 Nd2 Ne6+ Kf7 Nc5 Bc8 Bb2 Bg4 Nd3 Rh7 Ra2 Rg7 Rc5 Ra1 Rc8 Rb8 a8N b3 Nb6 Qa4 Nc4 Rb4 Na5 Rf2 Nh8+ Ke7 Ng6+ Kd7 Kf6 Re2 Nfh4 f3 Rc4 f2 Be4 Kd6 Bf5 Bf3 Rg4 Re1 Be4 Bd1 Nhf3 Re2 Qc5+ Kd7 Be5 Re1 Qc3 Re2 Kg5 Ke6 Rc2 Re1 Ne2 Rf1 Rg1 h1R Rg2 h2 Neg1 Re1 Nh3 Rhf1 Nhg1 h1B Nh2 Qb5 Nc4 Raa4 Na5 Qc4 Bf5+ Kd5 Kf6 Qf4 Qb2 Ra7 Qc3 Ra6+ Kf7 Re2 Ke8 Rfe1 Be4+ Ke6 Kd8 Rf1 Nh3 Rfe1 Rg1 Bf3 Rg2 Rh1 Ng1 Re1 Nf1 Rh7 Nh2 Rg7 Qc7 Bde2 Rb2 Qh6 Qc3 Ndf1 Ra2 Bd2 Nb2 Rc1 Bb1 Ba8 e4 Bd1 Nd3 Bf4 Rc2 Nd2 Ba2 Qg5+ Kc8 Qf5 Kd8 Bh6 Qd4 Qf7 Qc3 Qf4
k3q3/1b2b2Q/2BK3b/Nbn2pb1/1n2N3/BN1p3r/Rq1PN1b1/RN1r1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 f5 c4 d5 h4 Kd7 e4 Kc7 e5 Kb7 b6 a5 e6 g5 h5 g3+ Kf3 a4 e7 d4 e8R b3 c5 g2 h6 a3 h7 b2 Nh3 g1B Nc3 b1B Re1 a2 Bb5 Nd7 Nf2 Bd3 Ba3 Be7 Rf1 Ngf6 Nfe4 Qe8 Nb1 Be3 c6+ Kb8 b7 Nc5 Qc2 Nd5 c7+ Ka7 b8N Nb4 Qc1 Bb7 Bc6 Bb5 Na6 d3 Qc2 Rb8 c8N+ Ka8 Ncd6 Rc8 Nc4 g4+ Kg2 g3 Kf3 g2 Na5 g1B Qc1 Rg8 h8N Rc7 Ng6 Rh8 Qc3 Bh2 Qg7 Rh3+ Kg2 Bg3 Qh7 Bgh4 Rhg1 Bhg5 Rh1 Nd7 Nac5 Rc8 Ncb3 Nc5 Nh4 Bh6 Nf3 Rc7 Ng1 Rc8 Nf2 Rb8 Ne2 f3+ Kg1 B3g5 Ne4 f2+ Kg2 Rh4 Kf3 Rh2 Rc1 f1B Rc2 Bh3 Rf1 Rh1 Nf4 Bg2+ Ke3 Rh5 Kd4 Rh3 Ke5 Rc8 Ne2 Rb8 Nbc3 Rc8 Rac1 a1Q Ra2 Qb2 Rca1 Nca6 Ke6 Rc7 Nb1 Rc8 Bd7 Rc1 Bc6 Re1 Nbc3 Rd1 Nb1 Bd8+ Kd6 Nc5 Qd7 Bdf6 Qh7 Be7+
NK4B1/4Bb2/rBknRPpN/nR3b2/r1N3p1/2b3bN/q1N3bQ/4b2q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 f4 e5 h4 d5 b4 Kd7 c4 g6 c5 e3 Kd3 e2 b6 e1Q b5 a4 c6+ Kd6 b7 a3 b6 a2 c7 Be6 c8N+ Kc6 f5 Rh5 f6 Qf2 Qc2+ Kb5 Nh3 Qh2 Nd2 Ra6 Nc4 Ne7 Rb1+ Kc6 Be3 a1B Rb5 Bf7 Bg2 Rg5 h5 Bc3 h6 Nf5 h7 Nd6 Re1 Qh1 h8N Qe8 Bf1 Qe6 Qh2 Rf5 Be2 Rf4 Bd1 Bh6 Bb3 Bg5 Bg1 Bh4 Re4 Bg3 Re2 Nd7 b8B Re4 b7 Nb6 Bc7 Rf4 Bd8 e4+ Kc2 e3 Kd3 Re4 Be7 Rf4 Re1 e2 b8N+ Kc7 Rc1 e1B Nc6 Kd7 Nb4 Re4 Na5 Nbc4 Nb6+ Kc7 Na8+ Kd7 Nb7 Na5 Nc2 Kc6 Ba2 Qf5 Rd1 Qf2 Rd2 Qfg2 Re2 Rf4 Re6 Qf2 Na1 Qb2 Bb3 Qa2 Nc2 Re4 Nc5 Rf4 Na4 Re4 N4b6 Rf4 Ke2 d3+ Ke3 d2 Nc4 d1B Kd3 Bf3 Bb6 Bg2 Ke3 Be8 Nf7 d4+ Kd3 Bd7 Nh6 Bc8 Ke2 d3+ Ke3 d2 Kd3 d1B Ke3 Bcd2+ Kd3 Rf3+ Kd4 Rf4+ Ke5 Bc3+ Nd4+ Kb7 Nd2 Ne8 Rd6 Ra7 Bg8 Ra6 Rc6 Be6 Rd6 Bf7 Re6 Nc7 Kd6 Bc2 Kd7 Bf5 Nc2 Ra4 Nc4 Ne8 Kd8 Bf4 Kd7 Bd6 Kd8 Kc6 Kc8 Bd3 Re3 Bdg3 Re6+ Nd6+ Kb8 Bf5
nKnk1bBB/1br1b2B/3qP1BR/1b1pn3/N5nR/2BNpr2/1Q2nR2/8 w - - 0 1 illegal: No proof kernel
b3BqB1/4B1pN/1n1n1B2/QB4K1/bRrPN3/1nbR1Rrb/2kp4/n6n w - - 0 1 illegal: No proof kernel
1N1bR3/BQr1P3/1R4p1/n2N2p1/1q3qkb/rR2R2R/b7/Kbn1NBbb w - - 0 1 legal: proof: f4 b5 g4 e5 a4 exf4 axb5 d5 c4 dxc4 g5 h6 Ra4 hxg5 Ra6 Be6 Ra1 Bc8 e4 Ke7 d4 Kf6 Kd2 c5 Kc3 a5 h4 a4 b4 a3 b6 f3 h5 f2 e5+ Kf5 b5 a2 Kb2 c3+ Kb3 c2 Kb2 c4 b7 c3+ Kb3 Qb6 h6 Nd7 b8N Bc5 e6 Ne7 h7 Nc6 d5 Ra3+ Kc4 Bb7 d6 Na5+ Kd3 Rc8 h8R Ne5+ Ke2 Rc7 d7 Nd3 d8R Kg4 Bb2 c1B Nf3 c2 Rd6 f5 Re8 g6 Qe1 f4 Qb4 Bd2 Ne1 c1Q Rh3 Bh1 Nc3 Bce3 Rb1 a1B Nd5 Qb7 Bg7 Bf6 b6 Bd8 e7 Qc4 Kd1 f3 Qb2 Nc1 Re6 Qf4 Bd4 Bc3 Kc2 Bb4+ Bc4 f1B Re4 Bf2 Re3 Bc5 Qb4 Be2 Rbb3 Bh4 Kb1 f2 Bd3 Bd1 Bf1 Bc2+ Kb2 Bb1 Qb5 Qa6 b7 Qb6 Qa6 Ba2 Ka1 Qb4 Qb5 Bd6 Ba7 Bc5 Na6 Bb6 b8R Bc5 Qb7 Bb6 Bb5 f1B Bd3 Bfg2 Bf1 Bc5 Qa8 Bf3 Rb6 Be4 Nb8 Beb1 Qb7 Bd4+ Rec3 Bdf2 Rce3 Bg1
1q1brq1K/nNpbnQN1/3Bn2R/1n3R2/1n3p2/3P1B1r/kn2R3/B1R1R3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 h5 g4 f5 b6 a5 d3 h3 g5 a4 g6 c3 g7 f3 b7 a3 Be2 c2 Nc3 Kb3 Nb5 f4 Nd6 f2 Bf3 f1Q Ne2 a2 Ng3 h2 Ngf5 h4 Bd2 h3 Rc1 a1N Bc3 Ka2 b4 Rh6 b5 Be7 b6 Nb3 Ba1 Qf8 Qd2 Qf2 Rhe1 h1N Qb4 h2 Qc4 Rh8 Qf7 Ng3 Re2 h1N Ree1 Na6 b8B Bd8 b7 Qb6 Ba7 Rh3 b8R Ne2 Nb7 Nd4 Re2 Qbb4 Bc5 Bd7 Bd6 Nc5 Ree1 Nce6 Re2 Nf6 g8R Na5 Rg6 Nf2 Rh6 Nb5 Ng7 Ng8 Kf5 Nd1 Kg6 Qb2 Kh7 Nc6 e5 Nca7 Kh8 Qb3 Re1 Nb2 Re2 Nc5 e6 Qb4 e7+ Ne6 Rg1 c1N e8R Nb3 Na5 Nbc5 Nb7 Na6 Rc1 Qb3 Ree1 Nb4 Rc8 Nc5 R8e4 Ne6 R4e2 Bf6 Nd8 Qe8 Rb8 Qa3 Bf8 Na6 Qg6 Qae7 Nb7 Nb4 Qf5 Q7f7 Bd6 Qc8 Na5 Qb7 Rf8 Re8 Qh5 Qb8 Nb7 Bd8 Qg6 Qe7 Rf5 Qf8 Qf7 Ne7+
1nn2Q2/2R1B1R1/3r4/1B2N1B1/1r3b1r/K1Bb1q2/PR1ppb1N/Bn2rnk1 w - - 0 1 illegal: No possible last move, all moves rejected
Nrb3Nr/2Bnb3/2k1rQn1/3p3p/r6R/PnN1Bb2/R1B2BK1/3nq1B1 w - - 0 1 illegal: No proof kernel
1N2q2r/PB1nb3/1p1n1b2/5kp1/BKrb2N1/Bn1R1B2/4bN1R/r1Q1rB2 w - - 0 1 illegal: No proof kernel
kr1B4/1R3B2/NR1R4/3nKRb1/p1pnR3/3bqrP1/1qq3B1/nQnN1q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 e4 c5 d4 Kc7 b4 Kb7 b6 h5 g3 a5 d5 a4 b5 c3 e5 h3 e6 c4 e7 h2 e8B h4 d6 h3 d7 c2 Nd2 Be7 Bf7 Bg5 Nb1 Qe7 d8R Nc6 Nc3 Nd4+ Kf2 f3 Qd3 f4 Rd6 Nf6 Bg2 Nd5 Na2 Bf5 Nb4 Raf8 Ne2 Ka8 Rf1 h1Q Na6 h2 Nc3 Bh7 Be3 c1N Qb1 Bd3 Nd1 Rb8 Bd2 Rhf8 Ba5 Qe5 Ra2 Qh8 Re2 Qg1+ Ke1 h1Q Kd2 f2 Re4 Q1h7 b7+ Ka7 Bd8 f3+ Rf4 Qhh2 Re1 f1Q Re4 Ne3 Kc3 f2 Rf5 Nec2 Nb2 Na1 Nd1 Ra8 b8R Qf6 Rbb6 Rb8 Rb7+ Ka8 b6 Qe5 Ref4 Qe3 Re4 Qfe2 Kb4 f1N Kc5 Qb2 Kd5 Qgf2 Ke5 Qh3 Rd5 Qfc2 Rdd7 Qee2 Rd6 Ne3 Re7 Nd5 b7+ Ka7 Red7 Qe3 Rb6 Qh1 Rdd6 Qf1 Be7 Rbd8 b8R Rde8 R8b7+ Ka8 Rff6 Rb8 Bd8 Rh8 Rf5 Rh4 Bh1 Rf4 Bg2 Rf3
3KRn1k/N1R1B1q1/q4R2/bNrrpQ2/4B1rP/1nnpr3/4b2n/1RR4N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 a5 h4 d5 b4 e5 f4 g5 b6 Kg7 b5 a4 c5 a3 b7 d3+ Ke3 d2 b6 g3 c6 g4 c7 a2 f5 g2 Ne2 g1R Qc2 g3 Bb2 g2 Ba3 Qf6 Ng3 Nd7 b8N Ra5 b7 Nh6 Nc3 Rc5 Rc1 a1N Nb5 Nb3 Bd3 Qa6 f6+ Kg8 Nc6 d1N+ Ke2 d4 b8R e3 Kf3 e2 Ke4 Rh7 f7+ Kh8 Nca7 Ng4 Kf5 e1R Be4 Re3 Kg5 Bb7 c8R Nc3 Rc7 Nh2 Re8 d3 Qf2 Rh6 Qf5 Rd6 Bb4 Rdd5 Rb1 Nb6 Kf6 Bc6 Ke6 Nd7 Ba3 Rd1 Re1 g1Q Nh1 Qg7 Bb4 Rd2 Rec1 Rg2 Ba3 Rg4 Bb4 Qg8 Ba3 Bh6 Ke7 Bf4 f8R Bg3 Ra8 Be1 Rf6 Bb7 Bb4 Bc8 Rb8 Qg7+ Kd8 Bb7 Qe6 Rc4 Bh7 Rd6 Bc5 Bf3 Rb6 Rd5 Bf8 Be2 Be4 Nd1 Qf5 Ba5 Rbe6 Rcc5 Re8 Nc3 Be7+ Nf8+
1B1b2K1/R3n3/n1qR4/1p2PBR1/1bB2NNp/q1q4b/Qrr2bR1/1R1q3k w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 Ke6 Ke4 c5 a4 f5+ Kf3 Kd5 g4 h5 d4 b5 a5 b3 a6 b2 a7 h4 e3 c3 g6 c2 g7 c4 g5 c3 g6 Qf6 Qd2 Ne7 g8R Na6 g7 Qc6 Na3 b1Q Ne2 Qa2 Nc4 Qa3 Ne5 Rh6 Bb2 c1B Ng4 c2 Rb1 Qcc3 Bh3 Rc6 Rg1 Rc5 Ba1 Bb2 Rg2 c1B Qc2 Bd2 Qa4 Be1 Qb3+ Rc4 Qa2 Bc1 Bb2 Bf2 Ba1 Bd7 Bb2 Re8 a8R Bd2 Ra7 Rc8 Qa1 Rb4 Qa2+ Rb3 Bc1 Qc6 Bb2 Ba5 Bc3 Bd8 e4+ Kc4 d5 Kd3 d6 Rb2 Be5 Be6 d7 Qcc3 Rg3 Rc6 Kg2+ f3+ Kh2 f4 Rg2 Rc4 Bb8 Rc5 e5 Ke4 Nf6+ Ke3 Bf5 Rc7 Kh3 Rc8 Kg4 Qc6 Kg5 Qac3 Bc2 Bh3 Ng3 Qa3 Ngh5 Ke2 Bd1+ Kf1 Kh6 Rc7 Kh7 Qcc3 Rh2 Kg1 Rg2+ Kh1 Ng4 Be1 Nhf6 Qcc5 Rh8 f2 g8B f3 Ne3 Bh6 Nf5 f1Q Nd5 f2 Bg4 Bhd2 Nfe3 Qfc4 Nf4 f1Q Bf5 Bf2 Ng4 Bb4 Bf7 Qcb3 Rg8 Qfd1 Rg5 Rc8 Bd5 Bda5 d8R Qb6 Bf7 Rcc2 Rd6 Qc6 Bc4 Bd8 Kg7 Qc3 Kf7 Nd5 Kg8 Ne7+
B3kb2/1RB4B/1N4pb/prrRnN2/1nQ2q1q/P1n1B3/6qB/1q1Nn2K w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 h5 c5 hxg4 c6 bxc6 Na3 c5 Nb1 c4 f3 e5 Qb3 e3 Kd1 e2+ Kc2 e4 Qa4+ Bd7 Qb3 e3 Qa4 Bc6 Qb3 Be4+ fxe4 Qd6 Kc3 Rh3 Qd1 Qd8 Kc2 Rh8 d4 e1Q h4 f5 b4 a5 a3 c5 h5 c3 Kd3 c2 h6 e2 Ke3 g3 Kf3 c4 Kg2 f4 d5 c3 e5 Qe7 b5 Qd8 d6 Qg5 e6 Rh7 d7+ Kd8 e7+ Kc7 e8B Kd8 b6 Qh4 b7 Ra6 Qd4 Rc6 Bg6 Na6 b8N Rc5 Qc4 Ne7 Nf3 Nc6 Nd4 Nab4 Be3 c1Q Nf5 c2 Nc3 Ne5 Nd1 f3+ Kg1 g2 Rb1 Qf4 Rh5 Qeh4 Rb3 Rh8 h7 e1N Rb1 Rg8 h8B Qd2 Rb3 c1B Bh7 g6 Bd3 Qb2 Be4 Qb1 Ba8 Rg7 Rb2 Rf7 Rb3 Rf6 Bg7 Rb6 Bh6 Rbb5 Bg5+ Kc7 d8B+ Kc8 Bc7 Bd2 Nc6 Kd7 Na7 Ke8 Nc8 Bc1 Nb6 Bd2 Bf2 Bc1 Bg3 Bd2 Kf2 g1N Kf1 f2 Bh2 Ne2 Bh6 Qfg4 Be3 Qf4 Rg5 Nc3 Rb2 N1d3 Kg2 Ne1+ Kh1 f1Q+ Rg1 Qe2 Rg4 Qfh6 Rd4 Q6f4 Rd5 Qfg4 Bf2 Bdh6 Be3 Qf4 Rd3 Na6 Nc8 Rb6 Rb5 Nb4 Rd5 Rd6 Rb8 Rb6 Rb7 Rbb5 Nb6 Qg2#
1RN2r2/r5Q1/3PK2b/qnBp1R2/1r1b2q1/1n1BRR2/NRN4p/2r2bbk w - - 0 1 illegal: No proof kernel
kbn3br/4KNBR/1qP3q1/r1RR2Rp/Q1r3q1/2pq2R1/2r1BN2/1B3n2 w - - 0 1 illegal: No proof kernel
1kr2Rr1/4K1q1/PN1R2qR/2q5/1b1BNp2/B1nr1B1Q/2nqp2R/R2b2r1 w - - 0 1 illegal: No proof kernel
5K2/R1nRnpRR/BN1b2B1/2p4N/r7/1r1N2nk/Q2qrPn1/2R1rbq1 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 Be3 d5 axb5 dxc4 d5 Na6 Bb6 Nb8 Bd4 exd4 Kd2 Ke7 e4 Kf6 b4 Kg5 g4 c5 d6 h5 b6 a5 e5 d3 Kc3 d2 d7 h3 e6 Kh4 b7 h2 b5 a4 g5 a3 b6 a2 e7 Ra7 e8N Qc7 d8R Rh6 g6 Qf4 g7 Qd6 Qa4 d1R Na3 Re6 Nf6 Ne7 g8B Na6 b8R Re2 b7 Rde1 Rc1 a1N Nh3 Nc2 Ra8 Ne3 b8R Ng2 Nf4 Nc7 Nd3 Kh3 Rd7 h4 Nh5 Ba6 Bh7 Rb7 Rg1 h1N Bg6 Ng3 Ra7 Rb4 Qc2 Ra4 Qa2 Bb5 Nc2 Qf4 Ncb4 Ba6 Nd5 Qe3 Qc2 Qf4 Nb6 Qd2+ Kb2 c3+ Kb3 Bb5 Qa2 c2 Re8 Nc8 Red8 Bd6 Rh8 Ne7 Rh7 Rg4 Ra1 c1R Rb1 Rc2 Rc1 Bc4+ Ka4 Rc3 Ka5 Nb5 Ka6 Rb3 Kb7 Nc7 Kb8 Bb5 Kb7 Ra4 Kb8 Ned5 Kc8 Ne7+ Kd8 Kg4 Rh6 h3 Rh8 h2 Rh7 Re3 Be2+ Kh3 Bf1 h1Q Be2 Na8 Ke8 Nc7+ Kf8 Bc4 Bf3 Qh2 Bb7 R3e2 Ba6 Kg4 Rh1 Qg1 Rg7 Bb5 Nhf4 Bc4 Rhh7 Bb5 Nh5 Kh3 Bc8 Bc4 Ba6 Re5 Nb2 Bf1 Nd3 R5e2
Nk3rb1/2q1rp2/1nB2pP1/n2bb3/n1R3Q1/1NN3Bb/1Rn5/K3qRRR w - - 0 1 illegal: No possible last move
QnR1b3/2pn1Bbq/R3Kb1N/Bbq2P2/B2R1N2/1r2k3/1p1r4/2rrB2B w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Ke5 b5 d4+ e3 a4 h5 g4 b3 a5 b2 a6 b4 d6 b3 d7 h3 a7 h2 d5 h4 d6 h3 Ra6 Nf6 Nd2 b1R Ke6 Kf4 g5 b2 g6 e2 g7 e1B g8B Bg7 Bf7 Qf8 Bb5 Rh4 f3 Ke3 Ba4 Rd4 f4 Bh4 Nb3+ Rd2 Ne2 Ra1 Re1 h1Q Nbd4 h2 Rg1 Bb7 d8R Nfd7 Rc8 Bc6 Rg4 Bhf6 Rh4 Bb5 Nf5+ Kf2 Nh6 Ke3 Qf1 Ra3 Qg2 Rb3 Kf5 e5 Ke6 e4 f5 Qg8 Rg4 Qh7 Nf4 Qg1 Rh4 h1B Rg4 Ne5 d7 Qf2 d8B Ned7 Be7 Qg1 Bb4 Qf2 Qf1 Bf3 Rh4 Bh5 Ba5 Bg6 Qh1 Qg1 Bg8 Be8 Rg4 Kf2 Bf7 e3 Qd5 e2 Rh4 Rd1 Bcd2 e1R+ Qe4 Rf1 Qd5 Rc1 Be1+ Ke3 Qb7 Rf2 Qh1 Rd2 Qg2 Nc6 Rg4 Rb8 a8B Rb6 Qd5 Ncb8+ Bc6 Rbd3 Qa2 Rb7 Bh1 Rdd1 Qd5 R3d2 Qc6 Be2 Qd5 Rb3 Qa8 Bd3 Ng6 Bb5 Rd4 Qf1 Nf4 Qc4+ Bd5 Qc3 Bh1 Qc5
4B3/1q3BnR/Rn3pn1/3K1N1r/3p1R2/R2P1RBq/1rnk1b1r/2N2nQq w - - 0 1 illegal: No possible last move
1b1K4/r1Rnq1Nb/3p1p2/1QB2r1q/1B1qR3/3PR1qB/Bqk1Nb1B/5r2 w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c3 hxg4 Bh3 b5 Bg2 b3 Bf1 Nc6 c4 b4 Na3 Na7 Nb1 Nb5 cxb5 Ra5 Kf2 Ra4 Ke1 Ra8 Kf2 Ke7 e4 Kf6 a4 Ke5 h4 Kd4 h5 c5 d3 g5 b6 g3+ Kf3 g2 Kg4 c4 Kf5 b2 h6 b3 b7 f3 b8B f2 a5 c3 a6 c2 e5 g4 e6 g3 e7 Ra7 e8R Qh4 h7 Qe7 Nh3 g1B Nf4 g2 Bd2 c1Q Ra4+ Qc4 Bb4 Nf6 Nc3 b1Q Nh5 b2 Qb3 Qd1 Bh2 b1Q Ng7 Qb2 Ne2+ Ke3 Bc5+ Kd2 Qb5 Qcd4 Rc4 Rg8 h8B Bb7 Rc8 Be4+ Kg5 Bf5 Rc7 Bh7 Rb4 Kc2 Rc4+ Qdc3 Re4 Qd4 Re3 Qe6 Re4 Bd6 Re3 Qe7 Re4 Rb7 a7 Rf8 a8B Ra7 Bd5 Bg3 Ba2 Be5 Rc6 Bb8 Rc7 d6 Be5 Qe8 Rh3 Nd7 Rhe3 Qe1 Bh2 Qa5 Ne6 Qe7+ Bf6 Qaa4 Ng7 Qd5+ Kf4 Qh5 Bc3 Qd4 Bd2 f6 Bdb4 Rg8 Ne8 Rg5 Ng7 Qdc3 Re6 Rf5+ Ke4 Ne5 Kd5 Nd7+ Kc6 Qc4 R6e4 Qcd4 Bf4 Bh2 Be5 g1Q Bh3 f1R Bf4 Qf2 Bg3 Bg1 Bh2 Ra5 Kb7 Qg3 Kc8 Ra7 Bd2 Bf2 Bdb4 Qe6 Kd8 Qe7+
2K1NNqB/3n2qn/1p6/1bq1r1B1/Q1RpR2B/BP2n3/Nr1nBr2/1k3n2 w - - 0 1 illegal: No extended proof kernel
3r1Bn1/nn2rpK1/2q2R1N/1p1Q1b1R/4r3/N1N1RnR1/2BRqP2/q3k2n w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 Kd2 d5 e3 d3 Nc3 d4 Nb1 Bg7 Ke1 d2+ Ke2 d3+ Kf3 Bd4 exd4 Qa5 Ke3 Qd8 Ke4 Kd7 Kf5 Kd6+ Kg5 Kd5 a4 Kc4 g4 e5+ Kh5 b3 d5 e4 d6 Ne7 Kh6 b5 c3 h3 d7 h2 g5 b2 a5 e3 a6 e2 a7 e1N g6 Nbc6 g7 Qb6 d8N Nf3 Ne2 Re8 g8R Rb8 a8R Rb7 Rg2 Ng8+ Kg7 h5 R1a3 h4 Ne6 h3 N6d4 Re4 R8a6 Na7 Nf5 Rc7 Nh6 Bf5 Rg5 Qd6 Rhg1 h1Q Rh5 h2 Ra2 Qd5 Rf6 Rb7 Rg2 Qg1 Rgg6 h1N Rg3 Rd7 Qe1 d1Q Qd2 Kb3 c4 Qc2 Qd1 d2 c5 Kc4 c6 Kd3 c7 Qdc4 Qe1 d1R c8R Rd2 Rd8 Qc6 Ra4 Qd1 Ra3+ Kc2 Re3 R2d3 Nd2 b1N Ba3 Nc3 Nc4 Na4 Bf8 Rde7 Nc3 Nc5 Na3+ Kc1 Qe2 Nb7 Qa2 Qe1 Qe6 Kd2 Qe5 Rd5 Bd3 Qe2 Bc2 Qa1 Qd4+ Ke1 Qc4 Rde5 Rd2 Rd5 Qa2 Rd6 Qd5 Rd8
2q3R1/1qp1n1B1/1nP1N3/rBBBQ1pN/5K1k/2qq2N1/b3q1R1/b1B1q1q1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 b4 a5 h5 axb4 h6 b5 Qf3 Ra6 Qe2 Rf6 Qd1 Rf7 Rh3 g6 Rh1 Rg7 hxg7 fxg4 Ke2 Kf7 Ke3 Kf6 f4 h5 a4 e5 c4 h4 d4 b3 c5 b4 a5 h3 f5 Kg5 c6 g3 f6 b2 d5 g2 a6 h2 f7 b3 a7 Kh4 a8N Rh5 d6 Ne7 g8B Nd7 Nc3 b1Q Nb6 b2 Ra2 Bg7 Nbd5 Nb6 f8B Be6 d7 Qc8 d8B Bh8 Nh3 g1Q+ Nf2 Qc2 Nf6 b1Q Nb5 Qc3+ Qd3 Rf5 Bg7 Bf7 Rb2 Ba2 Nd4 Qb7 Bf7 Qg4 Rg1 h1Q Rg2 Qg1 Nh5 Rg5 Bd5 Qgc8 Ne6 Rf5 Ke2 e3 Qb5 e4 Nh1 Rg5 N1g3 Re5 Rd2 Qbd3+ Ke1 e2 Qa5 Qh1 Kf2 e3+ Kf3 e1Q Kf4 e2 Qc5 Qh2 Qd6 Rg5 Qe5 Qg1 Rb2 Qed1 Rb4 e1Q Rb1 Nf5 Be7 Qd1e2 Bc5 Ne7 Ra1 Bb3 Ra8 Ba2 Bf8 Bf6 Bg7 Qcc4+ Qe4 Ba1 Qd4 Qcc3 Qe5 Qd7 Rf8 Qdc8 Rg8 Q2f2+ Bf3 Qdd1 Qd6 Nf5 B5a3 Ne7 Qd4 Rc5 Qe5 Ra5 Bb5 Qdd3 Bc5 Qfe2 Bd5 g5+
2B1rK2/BpNp3R/1rB1qkr1/qP5r/bBR1n2q/4n3/1r1r2B1/2NQ1N2 w - - 0 1 illegal: Other
1BN3RK/q3RR1R/3p1qBb/6k1/NQ1Pb1r1/1q5B/4nbqp/qRb4r w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c3 gxh4 Qa4 b5 Qb3 Nc6 Qd1 b3 c4 b4 Nf3 Nd4 Ng1 Nb5 cxb5 Bg7 Qe2 Bh6 Qd1 Bf8 Ke2 Kf7 Ke3 Kf6 Kd4 h5 g4 e5+ Kd5 c5 a4 c4 f4 b2 d4 h3 f5 e3 b6 e2 a5 e1B a6 b3 a7 e4 b7 h2 b8R e3 Nd2 b1Q Rb7 h4 Bh3 b2 Qb3 c3 Qb4 c2 Ne2 Bh6 Nc4 Bf2 Nd6 Kg5 Ke5 Nf6 Nc3 Ne4 f6 Qa2 f7 b1Q f8R Qbb3 Rb1 Ng3 Rf7 Ne2 Na4 Qb6 Rc7 Bb7 Nc8 Be4 Ba3 Rb8 a8B c1B Re1 h1Q Rh7 Kg6 g5 Qg2 Bc6 Kh5 g6 Kg5 g7 Qa7 Bd5 Qa1 Bf7 Rb6 g8R+ Rg6 Bhe6 Rg7 Bg6 h3 Bef5 Ng3 Rf1 e2 Be6 e1Q Bg4 Bfe3 Rf7 Ne2 Re7 Qef2 Be6 h2 Bh3 Qf8 Rb7 Rf7 Rc7 Rf1 Rb7 Rh1 Ref7 Kh4 Kf6 Qd8+ Re7 Bf2 Rf7 Bhe3 Kg7 Kg5 Rc7 Rh4 Rb7 Rf4 Kh8 Rg4 Rb5+ Kh4 Ree8 Be1 Qc3 Bd5 Bd6 B1f2 Qb4 Be4 Bb8 d6 Ra5 Qg5 Ree7 Qf5 Rh7+ Bh6 Ref7 Kg5 Re5 Qc5 Re6 Qa7 Ree7 Qf6+
2R1n3/1bN5/R5B1/1QP2bn1/RKRqRp1B/q2p3r/pN4qn/k1br3B w - - 0 1 illegal: No possible last move
1qbRn1q1/2n5/1r2p2p/4N1R1/R1N2B2/2bK2RB/nQB3pP/b1rRqk2 w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kf7 c4 Kg6 f4 Kh5 d4 Kh4 b6 g5 c5 a5 d5 e3 c6 a4 d6 e6 d7 a3 b7 g3 f5 a2 c7 h6 f6 b3 f7 g4 Qd5 b2 Qb3 g2 Qc3 g3 Na3 b1N Qa5 Na6 b8R Bb4 f8R Nf6 Kd3 e2 Qe5 e1Q Bf4 Bc3 Nc4 Ne8 Rb5 Rb8 Nf3+ Kh3 Rg8 Rb6 Qd4 Rh7 Rbg5 Rf7 Nfe5 Rh7 Be2 g1Q Bd1 Kg2 Bc2 Kf1 R8g6 Bb4 Qb2 Nc3 Rd1 a1B Rg8 Na2 R8g7 Qe7 d8R Bc3 R7g6 Qb4 Rg7 Bb7 c8B Nac7 Bd7 Qb3 Bc6 Bc8 Bf3 Qb4 Bg4 Qf8 Bh3+ g2 Rg3 Qg8 R7g5 Rg7 Rd2 Rf7 Re2 Rf5 Re4 Qb1 Nd7 Re5 Rd4 Re1 Nde5 Rc1 Na3 Kf2 Ra4 Qe1 Nac4 Ra6 Qa3 Qb8 Qb2 Rb6 Nc6 Qe5 Rd1 Qe1 N6e5 Kf1
1r2q3/1B2qn2/BRpN1n1r/1N2B2k/NpPR4/2n2N1p/b1K2b1Q/2Nb2r1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b3 e5 b4 axb4 dxe5 f5 Ba3 fxe4 Bb2 Be7 Bc1 Bf8 Kd2 Kf7 f4 Kg6 g4 b5 a4 h5 e6 d5 e7 h3 e8N h2 g5 b3 a5 h4 a6 b2 f5+ Kh7 a7 d4 f6 Kg6 f7 h3 Ra4 d3 Nf3 Bd6 f8N+ Kh5 g6 Nh6 g7 Ng4 g8B Ne5 Qe2 Be6 Nc3 Ba2 Rd4 Bc5 Bd5 Nf7 Bb7 c6 Nd7 Rh6 Nde5 Qe7 Nd6 Nd7 Na4 Rb8 a8N Nf6 Nc7 b1N+ Kd1 d2 Bb2 e3 Nd3 Ba7 Nc1 b4 Ncb5 Bb6 c3 Qe8 Kc2 Bc5 Rg1 h1R Rg7 Rg1 Qh2 e2 Rg8 e1Q Be2 Qe7 Rd8 Ra8 Rb8 d1B+ Kd3 Qe6 Re4 Nd2 Nc7 Bdb3 Bc8 Bf2 Rb6 Bc4+ Kc2 Rb8 Bb7 Qe8 Bf1 Nb1 Rf4 Bd5 Bfa6 Q1e7 Ncb5 Bdc4 Rg4 Bf1 c4 Be2 Be5 Nc3 Rd4 Bd1+
1k1n1R1b/1q2qb1p/2Bn1N1Q/rn2Nq2/B2B4/K2Np1p1/3P2r1/2RNN1r1 w - - 0 1 illegal: No proof kernel
rr2B3/3R2Pk/2qpN1qB/2nb1Q2/4n1B1/Nppn4/3b1Nq1/NKr1R1N1 w - - 0 1 illegal: No proof kernel
2r4B/4pB1k/1qQ1pBq1/q1B2b2/Rnp2b2/b5K1/NP1NR2n/1r1rB2N w - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 dxc4 h4 gxh4 e5 Bb7 e6 fxe6 Nc3 Ba6 Nb1 Bc8 d4 Kf7 g4 Kg6 f4 c5 Kf2 a5 g5 h5 b6 c3 f5+ Kg7 b7 h3 g6 h4 d5 c4 d6 h2 d7 h3 Ne2 c2 Qd6 a4 Nbc3 a3 Qc6 a2 Ng3 Nh6 Bd2 c1B Be2 Na6 b8B Bb7 Bh5 Nb4 Be1 Bg5 f6+ Kg8 g7 Qb6+ Kf3 Kh7 d8B Ng4 g8N Bfh6 Be5 Rc8 f7 Bg7 Rf1 h1R f8B h2 Rf2 B7f6 Bd4 Be5 Bf7 Bd6 Bf6 Rg1 Rg2 h1Q B8g7 Qh6 Re2 Qg6 Nh1 Rf1+ Kg2 Nh2 Bc7 Bc5 Kg3 Rd8 Bce5 Rd1 Bd6 Rb1 Qd7 Be4 Qc6 Bg1 Bc5 Bf5 Nh6 Ra8 Bh8 Rc8 Ng4 B1e3 Ngf2 Rd1 Rb1 a1Q Nfe4 Qaa5 Ra1 Rb1 Ra4 Bef4+ Kg2 Bd6 Na2 Rd1 Nd2 Rb1 Bef2 Rfd1 Be1 Nc2 Be3 Ba3 Kg3 Nb4 Bc5 Bf4+
r4q1r/bR2pN1B/4p3/rR1n1Qp1/1NRb4/1Nn1k3/1N1NPb1q/K3Bn2 w - - 0 1 illegal: No proof kernel
K7/2qP1b1q/1b1pn1n1/NNBN1Q2/1R1R3q/1p2N2r/pr3bBk/2Nn3B w - - 0 1 illegal: No proof kernel
r1N2R2/1B1P1qp1/qb2N3/1R3Nn1/BrN5/3bbqB1/2np1p1K/kr3NQ1 w - - 0 1 illegal: No proof kernel
4b1Br/NB1p1pn1/n2r2B1/2R2P1q/2p1R2N/2n4N/2rkqKQ1/q1b3BB w - - 0 1 illegal: Other
2B1r3/P2Rb3/Qn1N2R1/B1qrK3/q2B2pn/2rq2p1/1N1BpNb1/1kb2B2 w - - 0 1 illegal: No possible last move
NNbbbB1R/kN4pp/2R4q/1B4RK/3rrQ2/1p2nr2/r1P1N3/2n2Nr1 w - - 0 1 illegal: No possible last move
B6B/6rB/1Brn2bb/qR1RQNp1/nn4Nn/K2P3p/R1p4b/Br5k w - - 0 1 illegal: No proof kernel
1rR1B1QB/N1q3p1/1rn1nrb1/1b3N1B/p5bp/Bkb1B1N1/n2P4/2K3R1 w - - 0 1 illegal: No proof kernel
BR1r4/3B2bn/3pr1N1/rBpP1B2/Rn4q1/B2q1prk/r2N4/2bQN2K w - - 0 1 illegal: No proof kernel
1B1B1Nq1/n1q3rb/1p6/1q3qp1/2B1Q1p1/1KP2qr1/R1B1R3/B1N1bNnk w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 f4 Kf6 a4 e5 h4 d5 h5 g5 a5 e4 h6 b6 a6 b3 a7 e3+ Kd3 e2 h7 e1Q Qe2 b2 Nh3 Nc6 Ra3 Qc7 Rh2 Nh6 Qg2 Qe4+ Kd2 d3 Kc3 d2 Ng1 d1Q Ra4 d4+ Kc4 d3+ Kb3 d2 Bc4 Bb4 Ra2 Rg8 h8B+ Rg7 Ne2 Nf7 Qf3 Qee5 Qe4 Qb5 Rf2 Qh1 Rh2 d1Q Nd2 Ba6 Nf1 b1Q+ Bb2+ Qd4 Nc1 Nfe5 Re2 Rc8 a8B Qdd8 Bb7 Na7 Bbd5 Qf3+ Bd3 Qbd7 Bc4 Be1 c3 Qg8 Bc2 Rf8 Bd1 Qbd3 Ba1 Q3d5 Bc2 Q5c6 Be6 Bd3 Bc4 Qb5+ Ka3 Ke7 f6+ Kd6 f7 Re8 f8N Qf5 Ne3 Re6 Nf1 Rh6 Nh2 Rh3 Nf1 Rf7 Bf6 Rg7 Bd8 Rg3 Rg2 Qf2 Rh2 Nf3 Rg2 Qe3 Rf2 Ng1 Re2 Qbd7 Kb3 Qf3 Ka3 Qfb5 f5 Qde6 f6 Qef5 Qa8 Be4 f7 Ke5 Qc6 Kf4 Qd5 Qe3 Qe5+ Kf3 Qe8 Qbd7 Kb3 Qf2 Qe5 Kg2 Qe7 Bd3 Qe4+ Qf3 Ne6 Kh1 f8B Qfc5 Bd6 Qdf7 Nf8 Qa5 Qd4 Bh7 Qe4 Qff5 Be5 Qcd7 Bb8 Qc7 Qd5 Qac5 Qe4 Qb5+
2B1n3/1B1R3p/BK1Bb3/r1RN2Nn/p5k1/qP1R2rr/1b1r1Q1p/2qr3B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 e4+ Kg5 g4 a5 b3 f5 b6 d5+ Kb5 a4 c4 d3 e5 d2 c5 f3 c6 f4 e6 f2 e7 d4 e8B d3 c7 h3 b7 h2 Qe2 d1Q Bc6 d2 Kb6 f3 Ba3 Qe7 Nc3 Nf6 Rc1 Na6 b8R Be6 c8B Nh5 Nd5 Bg7 Rc5 Rg8 B6b7 Nc7 Nh3+ Kh4 g5 Ra5 g6 Kg4 Ra8 Qc1 Ng5 d1R Ra7 Bb2 g7 Rd2 Qe1 Ne8 Bfa6 f1R Qf2 Rfd1 Bb4 Rf8 g8B Rf7 Re1 Rg7 Re3 Rg6 Rd3 Rg7 Qe1 f2 Qe3 f1R Qf2 Rfe1 Bf7 Ree2 Bg6 Qf8 Be4 Re3 Bh1 Rg3 Rc2 Rf7 Bd6 Rff3 Rc5 Re3 Ba8 Rh3 Rd7 Reg3 Bc6 Qf4 Bc6b7 Qb4+ Bb5 Qa3 Bc4 Rh4 Bca6 Rhh3
2R2bbN/2N2p1n/B1B4R/r1q5/pBKb1Q1q/2bRp2P/r1b2RR1/1k1n4 w - - 0 1 illegal: No proof kernel
bnb1B2b/r2Rp1pN/B1N2BN1/1R1b1b1k/KNN1P3/2n1p3/3q4/2Qq1r2 w - - 0 1 illegal: Other
3BRnK1/1B1pN3/1B3kB1/1brq1Pp1/3q1rqp/1R4b1/qq1B1Rn1/3Q1N2 w - - 0 1 illegal: No proof kernel
2NK3k/3B2nr/brq3B1/2N3B1/2BR1p1b/Pb1qp2q/B4p1n/4QqNR w - - 0 1 illegal: No proof kernel
1RBqQ2b/B4B1N/1nrn2N1/2q5/pRnB1KRq/1p6/1Ppr3b/n2B1k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 f5 dxc4 f6 b4 Rh3 Ba6 Rh2 Bb5 axb5 exf6 Rh3 f5 Rh1 f4 Kf2 Ke7 Kf3 Kf6 d4 Kf5 d5 h5 e3 c5 g3 a5 d6 c3 d7 a4 b6 b3 b7 c2 Qd2 h3 Be2 h2 Ra3 h4 Qc3 c4 Bf1 h3 Bd2 c1B Qd4 c3 Ra1 Ne7 Ra2 Ra6 Ra1 Nc8 Be2 Rc6 Na3 Bg7 Nc4 Nd6 g4+ Kg5 e4 Kh4 e5 f5 e6 Re8 g5 Bh8 Qg7 Rf8 Kf2 f3 Ke3 Kg3 e7 Kg2 e8B f2 g6 f1N+ Kf4 Ne3 Nf3 Nc2 Be3 Rf6 Re1 h1Q Bd1 h2 Bf7 Qg1 Ng5 h1Q Qf8 Re6 Rb1 Na1 g7 c2 g8B Qh6 Re2+ Kf1 Qe8 Qh7 Rg2 Qh4+ Rg4 Re5 Nh7 Rd5 Ne5 Rd2 Ba7 Qc5 Kf3 f4 Ng6 Qda5 d8R Nd7 Rb8 Qad8 Be6 Nb6 Bc8 Nf7 Ke4 f3 Kf4 Nd6 Bf7 f2 Kf3 Re2 Rb4 Be3 Rc1 Ke1 Rb1 f1N Rc1 Bg1 Rb1 Qhe7 Kf4 Nd2 Rc1 N2c4 Rb1 Qh5 Rc1 Kf1 Rb1 Na8 Bd4 Qhh4+ Bg4 Qe5+ Kf3 Qc5 Kf4 Rh2 Be2+ Kg2 Rc1 Bf2 Rh1 Na5 Bd1 Nb6 Re1 Nac4 Rf1 Qhh5 Bc8 Qh3 Re1 Qhh5 Re3 Bg1 Rg3+ Kf1 Rg4 Rd2 Ra8 Rd3 b8B Qhh4 Ba7 Rd2 Rb8 Bh2+
3rq1R1/3b4/N2bB1N1/3qrrk1/pbQ3p1/1RB1P3/1nRnK1pB/R5rR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Ke7 d4 Kf6 h4 c5 d5 a5 e3 g5 d6 c3 h5 f3 h6 c4 d7 g3 b6 a4 h7 g2 b5 g4 b7 f2+ Ke2 c2 b6 c3 Na3 Ra5 Qe1 Re5 Nc4 Qe8 d8R Kg5 Rd2 f5 Na3 f4 Nb1 Bb4 Ba3 c1R Rc2 Nf6 Bb2 Nbd7 b8B Ne4 b7 Ndc5 Nd2 Bd7 Nb3 Nd3 Nc5 Nd2 Na6 Rb1 Qc1 f3+ Kd1 Rf8 h8R Bd6 Ne2 Rff5 Ba3 Rb4 Nf4 Rd4 Ng6 Rdd5 Rca2 Rd4 Rg8 Nb2+ Kc2 Rdd5 Bc4 f1Q Bb4 f2 Bc7 Qe2 b8R f1R Rb5 Rd3 Be6 Rg1 Bba5 Qf3 Rb3 Qd5 Qf1 Nbc4 Kd1 c2+ Ke2 c1B Bc3 Bca3 Rc2 Nb2 Qf4+ Kf6 Qc4 Bab4 Bb6 Kg5 Bbd4 Re4 Be5 Rdd4 Bh2 Ree5 Qd3 Rc4 Qd4 Rc8 Qc4 Rd8
1q5R/N2Rb3/2r1Q2N/R1bB2nk/p1b1P2p/R2r1bn1/pBKB1n2/qR6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 e4 a5 d4 f5 Kd2 Kf7 b4 Kg6 g4 h5 g5 c5 b5 h3 d6 f3 d7 c4 d5 c3+ Kc2 a3 b6 a2 d6 f2 b7 a4 Na3 h2 Qg4 h4 Bh3 f1Q Bf4 Nf6 Be3 f4 Qe6 f3 Nb5 f2 Rb1 Na6 b8B Nc7 Na7 Kh5 g6 Be7 g7 Rh6 g8R Ba6 Nf3 Bc4 Rh8 Ng4 Ne5 Qe1 Rg1 f1N Bd2 h1B Rg3 Bf3 Nf7 Nf2 Bf5 Qe8 d8R Qb5 Rh3 Ng3 d7 Qb4 Rdf8 Qh1 d8R Qb5 Qd5 Ne6 Be5 Ng5 Rd7 Rd8 Qe6 Qb8 Bh7 Rg6 Nh6 Qf1 Bg8 Qe1 Rb6 Qa1 Rf5 Rf6 Rb1 Bc5 Kc1 c2 Bb2 Be7 Ra5 Bc5 Qf5 Rc6 Bd5 Be7 Qe6 Bc5 Be1 Be7 Kd2 c1B+ Kc2 Be3 Bd2 B3c5 Rhh1 Re8 Rhe1 Rec8 Re3 R8c7 Ra3 Rd6 Ba8 Rd3 Bd5 Rc6
BQnBnk2/3B4/bBN3K1/r2RrPpr/3q2pb/1n3RB1/n3Rp2/1q4N1 w - - 0 1 illegal: No proof kernel
nBbk2n1/1rq5/1N1np1Bp/3K1B1B/R2Q1q2/3R4/RN1r1bPp/2B3qn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 Kd3 d5 c4 h6 f4 b3 a4 b2 c5 b4 a5 b3 c6 h3 a6 h2 a7 Qd6 f6 Bg4 f5 Qf4 c7 Nd7 c8B Nb6 f7+ Kd8 f6 Bg7 f8B Rb8 a8B Rb7 Nd2 b1N f7 b2 Be2 Na3 Ngf3 Nac4 Ne1 Nd6 Bf5 Bh3 Bg6 Bc8 Ra2 Be5 Bg7 b1Q+ Rc2 Bf6 Nc4 Bh4 Beh5 Bf2 Be5 Qa2 Rd2 Qa7 Ra2 Qb8 Qa4 Qc7 f8R+ Ne8 Kc2 d3+ Kb3 d2 Nd3 d1N Ndb2 d4 Rf6 d3 Rd6+ Bd7 Qb4 d2 Rd3 Nd6 Qc5 Bc8 Qd4 Nc3 Rg1 Ne4 Re1 Ng3 Re4 d1Q+ Kb4 Qb8 Kc5 Qg1 Bf5 Nh1 Kc6 Na4 Kd5 Qc7 Bfg6 Rb8 Bc6 Rb7 Bd7 Nb6+ Ke6 Na8 Kd5 Rh7 Bdf5 Rf7 Nb6 Rf6 Qc5 Rf8 Rea4 Rf6 Qd4 Re6 Bf6 Re2 Be5 Rd2 Bh8 Qd7 Be5 Nf7+ Kc5 Qd6+ Kc4 Qd7 Bb8 Nd6+ Kc5 Qc7+ Kd5 e6+
1kN5/1B2qB2/qPB1b1Nq/2bp1Rn1/Qp1B1Kn1/1b4N1/B1r2p2/1b2Rr2 w - - 0 1 illegal: No proof kernel
n1BnbR2/1K1QRbp1/1RN2n2/1N3bb1/p4rR1/BRr5/2qP3p/4Bkq1 w - - 0 1 illegal: No proof kernel
R1B2k2/n3rPpq/QN3bqr/2n3N1/p1B1b2B/4Rbp1/2B3q1/BqR2K2 w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 a4 bxa4 g4 hxg4 Bh3 f5 Bf1 fxe4 b4 e5 f4 d5 h4 a5 c4 d4 c6 a3 h5 e3 b5 e2 b6 e4 b7 d3 c7 g3 f5 a4 f6 a2 c5 Ra6 c6 Qd5 h6 Ne7 h7 Bf5 c8B Ra7 c7 Nec6 Nh3 Nd7 b8B Nc5 Na3 Be7 f7+ Kf8 Nc4 Bf6 Nb6 Rb7 Bg5 Na7 Rb1 a1Q Rc1 Qb1 Bh4 Qda2 Be6 Qab2 c8B Re7 Be5 Q2a2 Ng5 Qd5 Kd2 e3+ Kc3 Qe4 Bb3 d2 Bc2 e1Q Bc4 Qg1 Qe2 Qgg2 Rhe1 d1B Qf1 e2 Kd2 Qg4 Ba1 Be4 Ke3 Rg8 h8R Qh5 Qf4 Qg6 Qb8 Qh7 Qb7 Qg6 Qa6 Qh7 Rf1 Qg6 Rf2 e1Q+ Re2 Qeh1 Kd2 Qhh3 Ke1 Qhh2 Re3 Bdf3 Rh6 Rh8 Rh5 Qd2+ Kf1 Rh6 Nh3 Nd7 Ra5 Nc5 Ng5 Nb3 Rd5 Nc5 Rd7 Qd5 Rb7 Qdf5 Rb8 Qh7 Ra8 Qfg6 B4d3 Qd2 Bc4 Qg2+
nk1rq3/R2p4/3n1K2/pp1qB1RB/1NqQP2R/3n2B1/1b4bq/1r1RN1R1 w - - 0 1 illegal: No proof kernel
4q1N1/2p3qb/2NB4/1N3p1R/2p2NPB/2rb1rQ1/1k2Bnnb/RrbK2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Kd6 d4 a5 g4 h5 e5+ Kd5 e6 h3 e7 h2 e8N f3 b6 f2+ Ke2 h4 b5 h3 b7 a4 b6 a3 Qa4 a2 Bg5 Ba3 Qd1 Bf5 Ng7 Qe8+ Kd2 Nd7 b8B Nh6 b7 Nf6 Qc1 Ne4+ Ke2 Bh7 Qe1 Nf5 Ne6 Nh4 Bc1 f5 Bg5 Ng2 Kd1 Bc1 Bh4 Ra3 Be2 f1B Ba7 Rc3 b8N Rf3 Na3 Nf2+ Kc2 Ke4 d5 Ke5 d6 Ke4 Rb1 a1B d7 Be5 d8N Bef4 Ra1 Ke5 Nc5 Kd4 Nf7 Bg3 Nh6 Be5 Ng8 Bd6 Kb1 Bg3 Qd1+ Kc3 Ne6 Bd6 Qe1+ Kb3 Nc6 Rc3 Bf3 Bd3+ Nc2 Bdf4 Bc5 Bd6 Be2 Bdf4 Bd6 Be5 Nf3 Bef4 Rf1 h1Q Ng1 Bh2 Nf4 Ne4 Qg3 Nf2 Nf3 Qg1 Rd1 Qe1 Rd2 Qf8 Ng1 Qg7 Nf6 Re8 Ng8 Re3 Rd1 Be4 Rd3 Rf3 Re3 Bd3 Re6 Qd2 Rh6 Qe3 Rh5 Qe8 Ng6 Bg5 Nf4 Bh6 Kc1 Bg5 Kd2 Kb2 Na3 Ne3 Ke1 Ng2+ Kf1 Bh6 Nb5 Bg5 Nd5 Bc1 Nf4 Bd2 Ne6 Bg5 Qe5 Bg3 Qf4 h2 Nh3 Ne3+ Ke1 h1R+ Kd2 Re1 Ng1 Rb1 Qe5 Bh2 Qg3 Ned1+ Ke1 Bc1 Nf4 Ne3 Ra6 Nh1 Ra1 Ng2+ Kd1 Nf2+
1B2n3/1Pn4R/n3B1n1/R2bR1KN/N1Q2p2/b3q1Np/1p1N1kr1/N1r2qr1 w - - 0 1 illegal: No proof kernel
b2qB2n/NPb3rp/1kp2qB1/rr4p1/1Qq3r1/8/KR4N1/NR2BBnB w - - 0 1 illegal: No possible last move
6N1/Pb6/2qp2K1/1NbnR1b1/2R3np/Q2N3q/2pr1Brk/r1r1NBNB w - - 0 1 illegal: No proof kernel
r1bq4/P1B2rN1/3p1n1q/r6B/N1rQp1n1/4RN1k/4Nqpb/N2BK2R w - - 0 1 illegal: No possible last move, all moves rejected
1Rb4n/2br1r2/B2kNr2/n2PrrQR/3Bp2R/KpB1N1r1/p1R3q1/3R4 w - - 0 1 illegal: No proof kernel
1bBknq1R/4N3/3b2Nn/1N1Q3B/bp4NP/1pN4b/RK2r1pB/3nnr2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 e5 c4 b5 Kc2 d5 a4 g5 f4 e4 f6 b3+ Kb2 e3 a5 e2 a6 e1N c5 g3 f5 g2 c6 d3 a7 g4 c7 g3 Bf4 d2 Nh3 g1B Nf2 g2 Ra2 Nd7 Nc3 Bd6 Ng4 Nh6 Be2 Rf8 f7+ Ke7 h3 Nf6 Bh2 Ne8 f6+ Kd7 Bf3 Rb8 a8N Ba7 Be2 Rb6 Bf3 Bb8 Be2 b4 Bf3 d4 Be2 Qe7 Bf3 Ba6 c8B+ Kd8 Nc7 d3 N7b5 Rc6 Be2 Rc4 Bf3 Re4 Be2 Bb7 Bf3 Bc6 Be2 Rh8 f8N Rh7 Bf3 Rf7 Ng6 Qf8 Ne7 Bd7 h4 Re2 Rf1 Rg7 f7 Rg5 Nf2 Rf5 Bh5 Rf4 Ng4 Rf3 Qc2 d1B Qd2 Bc2 Qg5 d2 Qd5 Rf4 Rf3 Bcf5 Rd3 Rf1 Rg3 Qg7 f8N Qf6 Nfg6 Qf8 Rf3 Bfe6 Rf7 Bc6 Rh7 Bed7 Nf2 Bh3 Ng4 Bd7 Rh8 Bc6 Nd4 Ba4 Ndb5 d1N+
1knK2B1/1n1R3R/BNRq1n2/BrQ2R2/pp1r3r/n1P5/pR2rN2/4b2b w - - 0 1 illegal: No possible last move
n1RRnB1q/r5bK/2Q5/1NpRbp2/1bR3B1/1k2P3/n1N1p1b1/R1B2rn1 w - - 0 1 illegal: No possible last move
NN2BN1N/3r3b/r1bbKrRQ/1p2P1pp/1N6/1BbqB2R/1n6/1k1n2r1 w - - 0 1 illegal: No proof kernel
2b1Rn1Q/R3b1pN/b3nBk1/r1NNR1B1/5np1/2b3Pp/R1rq1n2/6KR w - - 0 1 illegal: No proof kernel
3R1n2/k1BRp3/2nK4/1R1n1pQ1/1n1N3q/1RrR1b1B/N1bb1Pp1/Nb4r1 w - - 0 1 illegal: Other
R1nb3q/3rBrR1/QnR3qN/prN1q1p1/1pn3PK/1q2R3/3R4/1k1BN3 w - - 0 1 illegal: No possible last move, all moves rejected
b7/2p4r/R1P2pq1/pb3Q2/Nkq1b3/r3NnB1/K1bbB1Nb/R1BN1N2 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 a4 bxa4 g5 exd4 h5 Nc6 Rh3 Nce7 Rh1 Ng6 hxg6 Bc5 Qd3 Be7 Qd1 Bf8 Kd2 Ke7 b4 Kd6 e4 h5 c4 a5 Kc2 a3 Kb3 a2 g7 d3 g6 h4 b5 Kc5 e5 d5 e6 d4 e7 h3 e8N d2 b6 h2 b7 f3 b8B f2 Nf3 d3 Qc2 d1B Nbd2 Bd7 Nh4 Qg5 Nf6 Rh7 Ng4 Nf6 g8N Bd6 g7 Qg6 Ng2 Bb5 Ne7 Nd7 g8N Ne5 Nd5 Bf3 N8h6 Be4 Nf5 Nf3 Be2 f1Q Nc3 f6 Nfe3 Ra6 Ba7+ Rb6 Ned1 Bf4 Rg1 h1B N4e3 Bh2 Kb2 Kb4 c5 Ba8 c6 Rb7 Rb1 a1B+ Ka2+ Bb2 Na4 Rb8 Ra1 Bc3 Bd4 Rb6 Be5 Rb7 Nb3 d2 Bg3 Rb8 Qf5 Rb6 Nf2 d1B Nd2 Bc2 Nfd1 Rb8 Bc4 Qd3 Ndf1 Qd4 Bd3 Bd2 Be2 Ne1 Nf4 Bhe4 Nfg2 Nf3 Rh1 Bg1 Rh3 Bh2 Rh5 Rd7 Rh8 Rh7 Rc8 Rb7 Rb8 Rb6 Rb7 Qc5 Ra7 Qc4+ Kb2 Rb8 Ra6 Rd8 Nac3 Rd3 Na4 Rb3+ Ka2 Ra3+
b1n1RQ1b/2k2BNK/1p1pB3/B1nrq3/N1b1B3/b1n1B1N1/1Pp2b1n/2R5 w - - 0 1 illegal: No proof kernel
brq3N1/bB1k4/1r3r2/4B1R1/RbBBpbpp/4KNnB/1q2N1P1/1Q1r4 w - - 0 1 illegal: No possible last move
1kB5/1Nb1q2B/1r3q2/1Kn1n3/r1RpN2p/4B1pp/2Q1bPNR/Nn3Nr1 w - - 0 1 illegal: No proof kernel
1nq2bBR/np2kpQb/2P2r1q/2N3n1/1R1rN1p1/1p1N2B1/4N1Rr/N1K5 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 d5 h4 g5 a4 g4 e4 b3 c4 f3 c5 d3 a5 d4 c6 f2 h6 Bg7 e5 Qd6 h5 Qf8 a6 Qa3 a7 Ne7 e6 Qa4 h7 Bf8 h6 Qb5 Ne2 Qc5 Rg1 Qb6 Na3 Bg7 Rg2 Qd8 Nc2 Na6 Ra4 Nc5 Na1 Na6 Rb4 Bf8 Qe1 Rb8 a8N Qd7 Kd1 d2 Nb6 Ra8 Bb2 Nb8 Na4 Qd6 Nc5 Ra4 Bc3 Bd7 Bb2 Nc8 Ba3 Kd8 Bc1 Na7 e7+ Kc7 e8N+ Kd8 Bb2 Bf5 Nf6 Ke7 Nfe4 Qd7 Ba3 Qc8 Bc1 Rg8 h8N Bh7 Ba3 Rg5 Bb2 Rh5 Bc3 Rh2 Ng6+ Kd8 Ne5 Ke7 Rc4 Rb4 Ned3 Ra4 Ba5 Rb4 Bc7 Ra4 Ng1 Rb4 Be2 f1R Bg3 Rf6 Bf1 Ra4 Qe3 Rb4 Qg5 Ra4 Qg7 Rb4 Ke2 d1N Kd2 Nf2 Ne2 Nh3 Kc1 Ra4 Rb4 Ng5 Ndf4 Bf5 h7 d3 h8R d2+ Kb1 Bg6 Nfd3 d1Q+ Kb2 Qd2+ Kb1 Qa2+ Kc1 Bh7 N4c3 Nd7 Rd4 Rhh6 Ndf4 Bc2 Ng1 Nh7 Bd3 Nb8 Nge2 Rh2 Bf5 Be4 Nfd3 Rb4 Bg6 Bf5 N3e4 Qd2+ Kb1 Qh6 Rc4 Qh5 Kc1 Ng5 Bh7 Qh6 Bg8 Bh7 Na4 Rb5 Rb4 Rd5 Nac5 Rd4
3n2r1/Q1BBR3/pb1r1pk1/KR2Bn2/4qbb1/3NB2P/1Nr3pp/4RBr1 w - - 0 1 illegal: No proof kernel
5r1N/N2B1b1R/p1KP1b1r/1Br2Q1p/1knN2N1/2b1B1r1/1p4p1/N1Rn3q w - - 0 1 illegal: No proof kernel
bb1n2n1/B1Kp4/2N2rBB/2n4p/1NkBp2P/1Rb3Q1/p1q1N2R/2n1r1B1 w - - 0 1 illegal: No possible last move
n1r1k2b/Np3R2/R4r2/2Brb1pp/b4B2/K1N1pB2/1B1P1rBn/2R2q1Q w - - 0 1 illegal: No proof kernel
NBNb4/Rbb2b1B/4B2R/1qNp2r1/3ppk2/1NP2Nnr/1q3p2/K2n3Q w - - 0 1 illegal: No proof kernel
3QBbkB/2RRb3/rq4K1/PN1pqb2/n5R1/R2pr1pn/2B1Rpb1/6N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 b5 Kd3 g5 Ke4 f5+ Kd5 Kf7 h4 g3 e4 g2 a4 b3 c4 d3 a5 b2 h5 b4 h6 g4 h7 g3 c5 b3 c6 Qe7 c7 Ra6 Nc3 b1B Rh4 b2 Nb5 Nh6 Ra3 Ng4 e6+ Kg7 e5 Nf2 Kd4 Nh3 Rg4+ Qg5 e7 d6 e8B Be6 c8R Nd7 Rb8 Nc5 Rd8 Na4 Rd7+ Be7 Qd2 Bc2 Rc7 b1Q Bb2 Bd1 Bc3 Bf3 Be2 Rf8 h8R d5 Bd1 f4 Bc2 Rf7 Rh7+ Kg8 Ba1 Bf8 Bb2 Rf6 Rhd7 Be4 Qb4 f3 Qe7 Rf7 Qd8 Qg7 Ke3 Re7 Bd4 Qb3 Na7 Qb6 Nb5 Ng5 Kf4 Qh8 Nh3 g1B Bc3 Bd4 Ng1 f2 Ba1 Bc5 Bc3 Bf7 e6 Bg2 Kf5 Qh5 Bh8 Bd6 Rf4 Nh3+ Kf6 Bg6 Rb4 Bf5 Re4 Qe2 Rec4 Bg4 Kg6 Qe5 Rd4 Rf7 e7 Be6 Re4 Rf3 Rg4 Re3 Na7 Re1 Ne2 Qeb2 Ng1 Bc5 Nb5 Bf5+ Kh5+ Qg7 Bg6 Qa1 e8R Re2 Re6 Be7 Re3 Be6 Be8+ Qg7 Rf4 Qe5+ Kg6 Rd2 Re1 Re2 Rg4 Re3 Re2 Bf5+
1q4BK/1pk1bb1R/pr2RnRR/N1q1r3/5Np1/1R1nbBPQ/1bp2B2/8 w - - 0 1 illegal: No proof kernel
n1R2bqN/1b2Nn2/2R1p2B/1pB5/1QKp4/4B1nb/1q1BPqkp/1BN4r w - - 0 1 illegal: No possible last move, all moves rejected
1B4N1/bp1b4/2rpb2N/N3q1p1/b1R1bB1q/k1BB1KB1/2QP2p1/r1Rn4 w - - 0 1 illegal: No proof kernel
1KB2Bn1/pR6/rr1RR2r/QnRq1pN1/3n1Pkp/3p4/q2n3b/4BRN1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 Rh3 bxa4 Rh1 g5 e4 gxh4 Rh3 d5 Rh1 d3 Qh5 d4 Qe2 Bb7 Qd1 Bd5 exd5 Bg7 Qh5 Bh6 Qd1 Bf8 Kd2 Kd7 f4 e5 c4 f5 b4 h5 g4 e4 c5 h3 b5 a3 d6 Ke6 d7 h4 g5 h2 b6 a2 g6 Qe7 d8R Qg7 c6 Qf7 c7 Ne7 c8R Nbc6 b7 Rh7 b8B Rh6 g7 Kf6 Bd6 Ng8 Qe1 Rb8 Nc3 Kg6 Rb1 Kh5 Rb7 a1R Bc5 Ra3 Rd6 Ra6 B1a3 Qd5 Bab4 Kg4 Re8 Qb3 Ree6 Be7 Qa1 Bd8 Qa5 Bb6 Rdd7 Qa4 Bf8 Qa3 Rdd6 e3+ Kd1 d2 Kc2 d1N Kd3 e2 Kc4 e1N Kb5 Qb3 Ne4 Nf3 Ng5 Qa2 Be1 Nd2 Bg2 d3 Bd5 Nge7 g8R Bc5 Rg7 Ng8 Rc7 Be3 Bc4 Nd4+ Kc5 Nc3 Bb5 Nce2 Bd7 Nc3 Bc8 Ncb5 Rcc6 Qa4 Kd5 Qa2+ Ke5 Bf2 Rc5 Bg3 Rdb6 Nc3 Kd6 Ncb5+ Kd7 Qb1 Rbd6 Qa2 Rbc7 Rbb6 Rb7 Nc3 Kc7 Ncb5+ Kb8 Qa4 Ne2 Qa2 Rg1 h1Q Rf1 Qhd5 Ng1 Bh2
6rn/2n1NN2/k4B1K/1p2qB1R/1p2B1P1/1p1r2br/1pRNN2p/1b1N2bQ w - - 0 1 illegal: Other
2N2R2/1rq4p/b1Rp1Q1B/1p1B2Pp/1K1b2n1/5Bk1/q1RNRqrp/1n4R1 w - - 0 1 illegal: No proof kernel
rR2Nk2/KN2ppR1/1p1r1BBN/3N4/n7/N3qr2/p1PpbR2/3rbQn1 w - - 0 1 illegal: No possible last move
4K3/3PR1pB/nb3QRp/Bpn3Nk/4Rbb1/2N2q2/pR5p/1RbrBr2 w - - 0 1 illegal: No proof kernel
1kN3r1/1p1BN1bb/2b1QK2/5p1q/1PB2r2/1pp2B1R/1p3RBB/N3n1qq w - - 0 1 illegal: No proof kernel
NRb1K3/nN4R1/p3Bnpr/p7/nBR2b2/PnN1p3/QNqp1nkN/8 w - - 0 1 illegal: No proof kernel
n1BK4/R1B5/8/3pnppr/P3R1bb/kpQ4p/rNBN1p1R/2Bqn2B w - - 0 1 illegal: No proof kernel
1Kq2NBN/1R1P1Rp1/6p1/2R4n/1NpbpnQ1/p1B2pR1/R2rk1b1/rb6 w - - 0 1 illegal: No proof kernel
4NNn1/pBQpp1KR/b1b1r1q1/1N1pNPN1/3p4/1n2Bp2/4Rb1R/1k5r w - - 0 1 illegal: No proof kernel
1RR2K2/4B2B/4BQqb/k4rp1/n5r1/1pbq1pPp/n3RppN/N3BB2 w - - 0 1 illegal: Other
b2R4/rpR1N1p1/kn1B1Q1b/6PB/1pnp2Kp/n4B2/qpBR4/3b1NB1 w - - 0 1 illegal: Other
3q1b1n/p2q2q1/6b1/RR4p1/1BNN1Q2/2R1N1Pk/1BnK2rN/1q1B3b w - - 0 1 legal: proof: f4 b5 b4 d5 a4 e5 c4 exf4 cxd5 g5 h4 Na6 e4 fxe3 h5 c5 axb5 cxb4 Rh4 Rb8 Rh3 Rb6 Rh1 Rg6 hxg6 Bf5 Rh5 Be6 Rh1 Bc8 d4 Kd7 g3 h5 b6 f5 b7 b3 b8R f4 g7 f3 d6 Ke6 d5+ Kf5 d7 Kg4 d6 e2 Kd2 h4 Bb2 h3 Qc1 f2 Na3 h2 Nf3 Nb4 Nc4 Bb7 Ra5 Be4 Rbb5 Ne7 g8N Ng6 Ne7 Nc2 Nf5 Rh5 Rg1 h1B Rg2 Bd3 Nfe3+ Kh3 Nh2 Nh8 Rg1+ Bg2 Rh1 Bg6 Rg1 Qe7 d8B Qg7 d7 Rh7 Be5 b2 Be7 b1Q d8N Rh4 Bb4 Rh5 Kc3 e1Q+ Qd2 Qec1 Be2 f1Q Ne6 Qff6 Bd1 Bh1 Nd4 Qd8 Qf2 Qgd7 Qf4 Qcb2+ Kd2 Rh7 Rf1 Re7 Bg7 Re5 Rf3 Re4 Ng2 Re1 Rc3 Rf1 Nge3 Rg1 Ba3 Qb4 Be5 Qbe7 Bed6 Qf6 Bb2 Qfg7 Bb4 Rg2+
4N1B1/2Qnrr2/2N1pR2/3r1PR1/1pb1bBK1/B2q2r1/1pkN4/1R1Nr3 w - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a6 e4 fxe4 b5 axb5 h4 g5 a3 gxh4 Rh2 Bh6 Rh1 Bg7 a4 Bc3 Nxc3 Nd7 a5 Nc5 Nb1 Na4 Rxa4 Nh6 Ra1 Ng8 Ke2 Kd7 g4 Kd6 d4 h5 f4 c5 f5 c4 g5 e6 a6 h3 a7 e3 Kf3 h4 g6 c3 g7 b4 Qe1 b5 Be2 h2 Nh3 c2 Kg4 b3 Qa5 b4 Nf2 h3 Nd2 Rh7 Ba3 c1R Nd1 b2 Rb1 Rc5 Rg1 Rb8 a8N h1R Nc7 h2 Qa7 Rb7 Ne8+ Ke7 Rg3 Rg1 d6+ Kd7 d5 h1B Bf3 e2 Qa5 e1R Qb6 Ne7 g8R Nc6 Rf8 Nb8 Rf6 Rf7 Be2 Rbc7 Qa5 Ba6 Bb5+ Kc8 d7+ Kb7 d6 Rd5 Be2 Kc6 Bf3 Qc8 d8B Rce7 d7 Bc4 Bc7 Qa6 Bf4 Rg2 Qc7+ Kb5 d8N Ka4 Nc6 Nd7 Kg5 Rgg1 Bh5 Be4 Kg4 Rg2 Bg6 Qb5 Bh7 Rgg1 Nf3 Kb3 Bg8 Kc2 Nd2 Rg2 Kh4 Rgg1 Rg5 Rg3 Kh5 Bb3 Kh4 Qd3 Kh5 Bc4 Kh4 Rge3 Kg4 Rg3+
1n1BNB2/kP3p2/bRq5/5B2/3K2pr/2p1R1p1/5R1Q/NbNqB1bn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 b4 hxg4 d3 a5 d4 axb4 Be3 c5 Bd2 c4 Bc1 Ra6 Nd2 Rc6 Nb1 Rc5 dxc5 Qe7 Ra3 Qc7 Ra1 Qd8 Kf2 Kd7 h4 Kc7 e4 Kb7 c6+ Kb6 c7 g5 e5 b3 d6 c3 e6 b2 e7 f3 Ke3 g3 e8N g4 d7 f2 h5 Nc6 h6 Be7 h7 Na7 Nd2 b1Q Kd4 Bb4 Bd3 f1B Qe2 Kb7 b6 Qg5 d8B Be7 Qh2 Qh4 Nb3 Qh5 Ne2 Qg5 Bf5 Qg6 Ra2 Qc6 Bd2 Nf6 Be1 Ne4 Nec1 Bd3 Na1 Nf2 Rb2 Qc2 Rf1 Nh1 Rf2 Qd1 Rbe2 Ka8 Re3 Bca6 c8R+ Kb7 Rc7+ Kb8 b7 Bc5+ Ke5 Be4 Re7 Bb1 Re6 Nc8 Rg6 Ka7 Re6 Nb6 Rh6 Rg8 h8B Rf8 Bg7 Rh8 Bf8 Nd7+ Kf4 Nb8 Ke5 Rh7 Rd6 Rh4 Re6 Qca4 Rb6 Qc6 Rc2 Be2 Re4 Bf2 Re3 Bd3 Kd4 Bg1 Rf2 Ba6+
1Nk3rb/1r1n2BB/2P1BRr1/1NR1q3/qb1R3Q/6rR/qr3b2/1N2nK2 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 e4 f5 b4 h5 c4 a5 c5 d5 c6 h4 e5 f4 b6 h3 b5 f3 b7 h2 e6 f2+ Ke2 a4 b6 a3 g5 a2 g6 d3+ Ke3 d2 Ke2 d4 g7 d3+ Ke3 Rh6 e7 Qd6 Ba3 Rg6 Qa4 d1R Qg4 d2 Ke2 Nd7 b8N Ne5 b7 Nf3 Qe6 Qe5+ Kd3 Nf6 g8R Nd7 Ne2 g1B Qg4 g2 Qh4 Rg3 Rg6 Ne1+ Kc4 Rc1+ Nec3 d1Q Bb2 Rc2 Bd3 f1R Rf6 Bf2 Bh7 Re2 Nb5 g1R Bd4 Rb2 Bc3 Rg6 Bd4 Qa4+ Kc3 Nf3 Kd3 R1g3 Bc3 Rc1 Rd1 h1Q Rd2 Be3 Ke2 Ne1 Rc2 Qhd5 Kf1 Qdb3 Rd2 Qg8 Rd4 Bf2 Na7 Rcc2 Na6 Qe3 Rd2 R6g4 Rf3 Qc5 Na3 Rg2 Rc1 Rg6 Nb1 Rb3 Rg3 a1B b8R+ Kf7 Rh3 Rb7 Nb5 R2g3 e8B+ Ke6 Bf6 Qg5 Bh8 Bb4 Bf7+ Ke7 Rf8 Bac3 Bd4 Rb2 Bb3 Re8 Nb8 Kd8 Be5 Bcd4 Rc5 Kc8 Bh8 Bg7 Rf6 Qe5 Ba2 Qgb3 Rd4 Qba3 Bf7 Rg8 Be6 Qa2 Rf3 Bf8 Bf6 Bg7 Rff4 Bh8 Bg7 Rc2 Rf6 Rb2
8/nP5Q/1rNNr3/b4R1r/qBr1NR1N/Knb1BB2/1r2b1q1/1Rn2k2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Ke7 d4 Kf6 Kd2 Kg5 Kc2 h5 Kb3 c5 g4 f5 b6 c4+ Kb2 c3+ Kb3 h3 d6 Kh4 e5 Kg3 d7 Kf2 d5 h4 g5 c2 e6 f3 d6 h2 b7 h3 g6 f4 g7 Ra6 e7 Rh6 e8N Qa5 d8R Rb6 d7 Nf6 g8N Qb5 Kb2 b3 Qd3 Nc6 Qd6 Na7 Nc7 Nh5 Nd2 Ng3 Qe5 Bg7 Na8 Rhe6 Bc4 Ne2 Ka3 b2 Qg5 b1R Qf6 Rb2 Qg6 Bc3 Ne4+ Kf1 Nh6 f2 Nf7 f3 Be3+ c1B Nc7 Ba5 Ra2 Bcd2 Na6 Bdc3 Bd5 Nc1 Nb4 Rd2 Rf8 Rb2 d8B Bd7 Nfg5 Be8 Qh6 Bh5 Nc6 Ke1 Ra1 Rb4 Nd6 f1N Rb1 f2 Bc4 Nd2 Ndf7 f1R Bd5 Be2 Qh7 Rb2 Be7 Rf4 Bb4 Nb3 Nd6 Rd4 Rf5 Rc4 Bf4 Kf1 N1f3+ Kf2 Rd1 h1R Rd4 h2 Be3+ Kf1 Be4 Rg1 Bd5 h1Q Rdf4 Qg2 Be4 Rh1 Bd5 Rh5 Nh4+ Qf2 Bf3 Qg2 Nge4 Qa4+
2R5/5K2/b3RBNb/2rk4/1Rnb1q1r/1nrb2nR/bN2b1PN/2B2B1Q w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 c5+ Kc4 h5 d4 h3 e4 h2 b6 h4 b7 h3 Ra6+ Nc6 b8B+ Qc7 Qc2 b3 Ra7 b2 Be2 f3 Bh6 f2 Ra4 f1B Qd3 f4 Nc3 b1B Nd1 f3 Nb2 f2 Rb4 Nge7 Nf3 Nf5 Qd1 Bg7 Bc1 Ra3 Qe1 Rh5 e5+ Kd7 d6 Ke6 Bd3 Be2 d7 f1B d8R Bb7 Rc8 Ba2+ Kb5 c4 Kc5 c3 d5+ Ke7 e6 c2 Bb5 Qf4 Be5 Na5 Bc3 Be5 d6+ Kf6 d7 Ba6 d8N Nc4 Kd5 Nd4 e7 Nb3 e8R Bd4+ Re5 Bd3 Nc6 Bfe2 Ne7 Rf5 Rf1 h1R Ng6 h2 Rg1 Rh5 Qd1 Rh4 Re6+ Kf7 Re1 Rf1 Re3 h1N Nh2 Ng3 Re6 Rf3 Rh1 Ra5 Qg1 Bb6 Bf6 Bd4 Ng4 Re3 Rh3 Rf3 Nh2 Re3 Bd2 c1B Qh1 Bdb1 Kc6 Rc3 Kd7 Bbd3 Be3 Bd2 Kd8 Be1 Bc1 Bd2 Bc6 Rc5 Bf3 Bd1 Be2 B2e3 Bf1 Bd2 Re1 B1e2 Kd7 B2e3 Kd8 Ke6 Ke8 Kd5 Kf7 Bg4 Re2 Bd2 Re6 Bge2 Nf8 Qf2 Ng6 Bh6 Rf8 Qf3 Rc8 Qf4
rRKq2bq/B2n1r2/3R4/q3N1r1/2BN2B1/2P1k1N1/q3rRbn/1R3Q1n w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kc5 Ke4 Kd6 h5 b4 a5 g6 f5 b6 d3 e3 h4 g7 d2 c3 g2 b7 h3 b5 a4 b6 g3 Bb2 a3 Qb3 d1B Bb5 f4 Ne2 g1R Rh2 g2 Rh1 h2 Bc4 f3 Ra2 f2 Nd4 f1R Bc1 Bf3 Qb5 Nh6 g8R Ng4 Rg6 Re8 Rf2 a2 Rh6 Qh4 Kc7 a1Q Rd6 Qh8 Qa6 Qa5 Nd2+ Ke5 e4 Kf4 e5 Ke3 e6 Qa2 Rc6 d5 e7 Be6 Rd6 Nd7 b8N Bg8 b7 Be4 Nbc6 Bf3 N4b3 d4 b8R d3 Ne4+ d2 Ng3 Be4 Ba3 d1Q Nbd4 Qa4 Kb7 Qa5 Bc5 Qd8 Ba7 Qaa5 Rf7 Rf5 Qb5 Rgf1 Qb1 Rg5 Rf2 g1Q Qd1 Qg2 Qa1 Rf8 e8B Re1 Bh5 Re2 Qf1 Rf7 Rg1 Qh3 Rh1 Bg2 Rg1 Qa2 Rh1 Qda5 Kc8 Qh4 Rg1 h1N Ne5 Nh2 Bg4 Bc6 Qh3 Be4 Rb1 Bc6 Qf1 Bg2 Nec6 Qf6 Ne5 Qhh8 Nec6 Qe7 Ne5 Qed8#
R2NnN1n/nq2R1K1/Bn1P4/r4R2/3n2Q1/4nr2/1qkbB3/1NBN1rn1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 e4 Ke7 Ke2 Ke6 Ke3 Ke5 b4 f5 b6 a5 d3 h5 g5 c5 b7 c3 g6 h4 b5 h3 g7 f4+ Kf3 Kd4 Kg4 c4 Kf5 f3 Kg6 c2 e5 h2 b6 c3 e6 f2 e7 a4 e8N a3 Nd2 a2 Rb1 a1R Nc7 Bb4 Nh3 g1N Qh5 g2 Nd5 Nf6 g8B Nf3 Ng1 Ne8 Ne4 Ng5 Bh7 Nc6 b8R Rf8 b7 Na7 Nd2 Qb6+ Nf6 Nf7 Be2 f1N Nh3 g1N Nf2 Ne3 Nd1 Nh8+ Kh6 Qb5 Nd7 Rf3 Nf8 Ba5 Rc8 Qb2 b8N Bb4 Qh3 Ra5 Rc7 Rf1 Qc8 Raf5 Rf7 R5f3 Ra1 Ba5 Nb1 Bb4 Bd2 c1N Rf5 Nb3 Bc1 c2 Bg8 Be1 Bc4 Nc5 Ba6 Na4 Kh7 Nb6 Qe6 Nd6 Kg7 Bd2 Qg8 Nh3 Rg1 h1Q Rg6 Ng1 Re6 Rf4 Re7 Qb7 Rf6 R4f3 Nc6+ Kc5 Nd8 Kb4 d4 Ne8+ Kh7 Nec4 d5 Kb3 Qg2 Ne3 d6 Ba5 Bd2 c1N Rf5 Kc2 Qg4 Nb3 Bc1 Bd2 Ra2 Nd4 Ra1 Rc8 Raa5 Rc5 Ra4 Nf6+ Kg7 Ra5 Ra3 Ra4 Bab5 Nac8 Rd3 Ra2 Ra3 Ra1 Ra7 Ra5 Ra8 Na7 Ba6 Ne8+
3QB3/1KP1N3/4N1bB/qRBb3N/1nbRb2q/6q1/3bbkr1/1n2Rb1R w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 h4 exf4 b4 g5 Ra5 gxh4 Ra4 a5 Ra3 a4 Ra1 Ra5 bxa5 Bb7 Qd2 Ba6 Qd1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 Kg3 e4 h5 c5 f5 e5 h3 a6 a3 b6 h2 c6 d3 a7 a2 a8N h4 e6 h3 e7 f3 e8R f4 b7 f2 c7 d2 Qe1 d1Q+ Nd2 f3 Rb1 a1Q Nb6 Bh6 Kd6 Ne7 Qe4 Qa5 Be2 f1B Qe6 f2 Bh5 Nbc6 b8B Nd5 Ngf3 Qb3 Qf6 Bc4 Ree1 f1B Ba7 Rg8 Be8 Kf2 g4 Nc3 g5 B8a6 Rb2 Nb1 g6 Bd5 g7 Bac4 Qf8 Qh4 Ng5+ Bf7 Qe7 Bg6 Ne6 Qf3 Rb5 Qfg3+ Kc5 d5 Nc8 d4 Qd8 d3 Ne7 Bf4 Nb3 d2 Nbd4 d1B Ne2 Bd2 N2f4 Bde2 Nh5 Bc3 Bh6 Bd2 Rg1 h1B Bb6 Bhd5 Rh1 Rh8 g8R h2 Rg7 Rg8 Ba7 Bf5 Rg4 Bg6 Rd4 Bde4 Rg1 h1B Bb6 Bhf3 Rh1 Bed5 Ba7 Bfe4 Bb6 Qac3 Ba7 Qb4+ Kb6 Qa5+ Kb7 Qb3 Bf4 Bgf5 Qb8 Rg2 Qd8 Bg6 Bh6 Qbg3 Bc5 Nb4+
3B2r1/3br1NR/1n2Nrqb/n3BrN1/k3nq2/6PR/pK3B1Q/1RN2r2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 c6 e3 Nd7 b6 Bg7 b7 Bf8 b5 Nb8 b6 Nd7 Bc4 Nb8 Bb5 cxb5 d4 Kd7 Kd2 a5 Kc3 f5 g3 h5 e4 h3 d6 Kc6 d7 h2 e5 h4 e6 b4+ Kc2 Kb5 d5 b3+ Kb2 h3 d6 f3 e7 a4 e8R a3+ Kc3 a2 Bf4 b2 Be3 f2 Bg5 f4 Qd5+ Ka4 Re3 f3 Qd2 Ra6 Ne2 Nf6 Nc1 Nc6 b8B Na5 b7 Rg8 Re7 Nd5+ Kc2 f1N Ba7 f2 b8B Bh6 Rh7 Qf8 d8N Be6 Qe2 Nd2 d7 Qf7 Bc7 f1R Bae3 Qf4 Nc3+ Kb4 Ne4 Re1 Bf2 Ka4 Qd1 Re2 Qg1 b1Q+ Kd1 Qb6 Kc2 Bf5 Bb8 Qg6 Kb2 Re1 Be7 Rf6 Rb1 Nb6 Bc7 Re3 Bb8 Be6 Bc7 Rc3 Bcd6 Rc7 Be5 Bg4 Nc6 Rb7 d8N Bc8 Ne6 Rc7 Bd8 Re7 Ng7 Bd7 Ng5 Ne4 Nd4 Nb3 Qg2 Na5 Re1 h1R Nde6 h2 Bfd4 Qg4 Re2 Rhf1 Qg1 R1f3 Re1 h1R Bf2 R3f5 Qg2 Rh2 Rh1 Qf4 Qg1 Rg2 Rh3 Rh2 Qg2 Rh1 Qh2 Rf1
2b1n3/1NBrRq2/2B1BNK1/2qq2R1/4NNb1/pqR3Q1/1qP2rn1/bk6 w - - 0 1 legal: proof: h4 c5 e4 g5 d4 cxd4 f4 gxh4 a4 b5 axb5 f5 exf5 e5 Ra4 exf4 Ra6 Ne7 Ra1 Ng8 Kf2 Kf7 Kf3 Kf6 Ke4 a5 g4 d5+ Kf3 Ke5 b4 h5 g5 h3 b6 d3 b7 Kd4 g6 h2 b5 h4 Kg4 d2 b6 h3 g7 f3 Bb5 f2 Qf3 f1Q Qb3 d1Q+ Qf3 a4 Kf4 a3 f6 Rh7 Kg5 Qfd3 Bd7 Nc6 b8R Qb3 b7 Ne5 Qg3 Nc4 Kf5 Qh5+ Kf4 Ne3 f7 Nf6 g8B Ne8 Nd2 Kc3 Bc6 Bg7 f8N d4 Ne6 d3 Nc5 Ng2+ Ke4 Qf6 Be6 Qf8 Rb1 Ra6 Ra8 Bf6 b8N Rd7 Nb7 Qhc5 Ra7 Bg7 Bf7 Be5 Kf5 Ra4 Ra5 Rf4+ Kg6 Rf2 Be6 Qb2 Ra4 Bf6 Rg4 Bd4 Rg5 Be5 Ndf3 d2 Ra1 d1B Bf4 Qb3 Nd2+ Kb2 Ne4 Bg4 Ne2 Bd4 Rhf1 h1Q Rae1 h2 Bc7 Qg1 Nf4 h1Q Re3 Bg7 Ra1 Qb1 Rc3 Q1a2 Re1 Be5 Re2 Kb1 Ree3 Qab2 Re2 Qd1 Ree3 Qdd5 Re2 Rh7 Nd7 Bd4 Ndf6 Rd7 Rf3 Qc1 Rfe3 Ba1 Rc3 Qcb2 Bf7 Rd6 Nd2+ Ka2 Re7 Rd7 Nde4 Kb1 Be6 Qf7+
n3nRb1/1n6/1k1N4/q1nPr3/1N1qR1R1/2bB1KN1/p3Q2q/rBR3nB w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 cxd5 e5 h4 gxh4 Ba3 exf4 axb5 Bd6 b6 Be7 b5 Bf8 Bb4 cxb4 Kf2 Kd7 g4 a5 e4 f5 d4 h5 g5 a4 d6 a3 b7 f3 d5 h3 b6 h2 g6 f4 g7 b3 e5 h4 Qd3 b2 Bg2 h3 Qf1 Na6 b8R Nc7 b7 Nf6 g8B Rh5 Bf7 Bg7 Nc3 b1Q Nce2 Qd3 Bg8 Nfe8 Nc3 Qc4 Ke1 f2+ Kd1 Ra5 Bh7 f3 Bb1 Na8 Qd3 f1N Ba2 f2 Ke2 Ne3 Nb5 f1N Kf3 Nf5 Re1 N1g3 Ne2 Ne4 Bb1 Nc5 Ng3 Bh8 Rhg1 h1Q Qd2 h2 Re4 Neg7 Qe3 Ra4 Rc1 Qa5 Qe2 Qg1 Re3 h1N Re4 Nf2 Bh1 Qh2 Rg4 Kd8 e6 Nh3 e7+ Kd7 e8B+ Kd8 d7 Nd6 Beg6 Nge8 Bbc2 Bc3 Bb1 Re5 Bgd3 Qab4 Nd4 Qa5 Ndf5 Kc7 d8N Be6 Nc6 Bg8 Rg6 Ng7 Rf8 Nge8 b8R Qcb4 Rb6 Ndb7 Nd6 Qc4 Rb4 Qh4 Re4 Kb6 Re3 Qd4 Rg4 a2 Ree4 Rb4 Bbc2 Rb1 Nb4 Ra1 Bb1 Ng1+
2R2B1N/Q1br2r1/4B3/qNp4N/kb2KBnn/2b1R1bN/q2P4/n5rR w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 b4 Kd7 e4 h5 Ke2 f5 Ke3 a5 e5 h4 b6 Kc6 g5 Kb5 b7 f4+ Kf3 a4 g6 h3 g7 a3 e6 a2 e7 h2 e8N Ra7 Qc2 Nd7 b8B Ndf6 Qd1 Nh6 g8R Nf5 Rg7 Ng4 Rg8 Nh4+ Ke4 f3 Ne2 g1B Nf4 f2 Qb3 g2 Ng7 Rh7 Qe3 Ka4 b5 c3 b6 c2 b7 Bb4 Ngh5 Rg7 Bc4 f1Q Na3 Bf2 Be6 g1B Nb5 Bg3 Nh3 Qf7 Ba3 c1B Qc5 c6 Bf4 Qa5 b8N Bb2 Re1 a1N Nd7 B2c3 Nf8 Rd7 Qa7 Bb6 Ng6 Bc7 Rc8 Qg8 Nh8 Qf7 Rhf1 h1R Re3 Rg1 Rc1 Rg2 Rh1 Rg1 Bf5 Qa2 Be6 Bf6 Bb2 c5 Bbe5 Rde7 Bd6 Rd7 Bf8 Bfc3
kr4Bb/r2n3q/q7/n3N1NR/nR1K1N1P/4Rbq1/1q1p2RQ/n1B2B2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Kd2 g5 Kd3 d5 h4 Kd7 f4 Kc7 c4 Kb7 b6 e5 c5 b3 f6 b2 f5 e4+ Kc2 d3+ Kc3 d2 f7 d4+ Kc4 g3 f6 g2 Qa4 d1N Rh3 g4 Rb3 g3 Re3 d3 Ra2 d2 Rb3 e3 Qd7+ Qc7 Ra5 e2 Qd6 e1N Re3 Ra7 c6+ Ka8 Na3 b1Q Nh3 g1Q Kd4 g2 Rh5 Bb7 Nc4 Nd7 Ne5 Nc3 Ng5 Bg7 f8N Qb2 f7 Ne7 Nfe6 Rb8 f8R Bh8 Rg8 Qc8 c7 Bf3 Nf4 Qa6 c8B Qh2 Qf6 g1Q Qd6 Qgg3 Rg7 Qhh3 Rg6 Qf5 Qc7 Nf8 Be6 Nd7 Bg8 Qfc2 Qc4 Qf5 Qe2 Qf7 Qh2 Qh7 Rc6 Na4+ Rcc3 Nc8 Re2 Nd6 Rg2 Qa3 Rd3 Nc4 Re3 Na5 Ree2 Rd8 b7+ Kb8 Re4 Nc2+ Kd5 Na1 Kd4 Ra8 Re3 Qb2+ Rc3 Ka7 b8R Rc8 Rb4 Rab8 Ba2 Rc7 Bf7 Ka8 Bg8 Qa3 Rd3 Ra7 Re3 Qb2+
2bq1kB1/R3RbN1/b2R1P1B/2n4p/Nq2b2q/1r1q1nNr/1KQ5/N2B4 w - - 0 1 illegal: No possible last move, all moves rejected
4r3/K3qPp1/1n3B2/4nBq1/3RbN1R/RrBnqkq1/QN2Nn2/1b4B1 w - - 0 1 legal: proof: a4 b5 axb5 c5 d4 cxd4 g4 h5 c4 hxg4 b4 e6 e4 Bc5 e5 Bb6 c5 f6 cxb6 fxe5 Qc2 e4 Qd2 Rh6 Qd1 Rh8 Kd2 Kf7 f4 Kf6 h4 Kf5 h5 a5 b7 d5 b6 g3 h6 e3+ Kd3 e5 h7 a4 b5 a3 Qc2 Kg4 f5 e4+ Ke2 d3+ Ke1 d4 f6 g2 f7 d2+ Ke2 d1N Nd2 a2 Bb2 Nf2 Nc4 Nf6 Bc3 Nfd7 Nb2 Nc6 b8B Nce5 b7 Re8 h8N Qg5 b6 Ra3 Ba7 Rb3 b8R Bb7 Rd8 Bc6 b7 Nb6 b8B d3+ Ke1 d2+ Ke2 Kg3 Ng6 Bd5 Rh4 d1B+ Ke1 e2 Nf4 Bc6 Kd2 e1N Ke3 N1d3 Kd4 e3 Nge2+ Kf3 Bc7 g1Q Bh3 Qe7 Bf5 Qg3 Bd6 Qeg5 Be7 Be4 Qb1 Bc2 Bf6 Ne1 Kc5 Bcd3 Nc1 e2 Rd4 Bc2 Kd6 N1d3 Kc7 e1Q Nce2 Nc6 Kb7 Nce5+ Ka6 Qd2 Qc1 Qe3 Qd2 Na8 Bc5 Bb1 Ka7 Nb6 Ra4 Bc2 Rd1 a1Q Ra3 Bb1 Qc2 Nc1 Rd4 Ncd3 Qd2 Ba2 Qc2 Qe1 Qd2 Bb1 Qc2 Rb4 Qb3 Rb5 Qa2 Rb3 Ra5 Q3d2 Raa4 Nec4 Rd8 Bc6 Nc1 Ng4 Bg1 Ngf2 Rd7 Qe7 Ra3 Nce5 Nce2 Bb7 Rd8 Qe3 Rd4 Be4+
3rbq1n/N1q1r2r/B1R1q3/Q1r1b1k1/1Br1K1b1/NpR1P1R1/8/1R1N1B2 w - - 0 1 illegal: No possible last move, all moves rejected
NKR3n1/2b1Nb2/1pbB3k/2Q5/nR2nRqP/3n1R2/b1b2Nr1/3B1b1B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Bg4 Qd1 Bc8 g3 gxh4 Nf3 h5 Ng1 h3 Bb2 h2 Ba3 Nf6 Bc1 Ng8 Nf3 h4 Ng1 h3 Qb3 Rh4 gxh4 Ra6 Qc2 Rh6 Qd1 Rh8 Kf2 c5 Kf3 f5 a4 Kf7 e4 Kg7 d4 c4 d6 b6 d5 b3 a5 b2 e5 c3 a6 c2 d7 Rh5 d6 Nh6 a7 Ng8 a8N Qg5 d8R Nd7 e6 Be7 Bg2 Nc5 d7 Na4 Nc3 b1B Qd6 Ba2 Rb1 Kh6 Ba3 c1N Qc5 Nd3 Rf8 Bd8 e7 Qg7 e8B Rg5 Bh5 Bb7+ Ne4 Bbd5 Ne2 Bf7 Rhf1 h1N Rb4 h2 Nd4 Ng3 Nf2 h1B Nc6 Ne4 Ne7 Rg6 Bb2 Rg5 Be5 Rg4 Bd6 Rg6 Ke2 f3+ Ke3 Rg3 Bg4 Qg6 Kd4 f4 Be6 Qg4 Bb3 Be6 Bd1 Bf7 Nh3 f2 Bgf3 Bc7 d8R Rg2 Rb8 Bd8 Rc8 Nec3 Bc6 Ne4 Bd5 f3 Bb7 Bfb3 Rf4 Bc2 Bc6 Bab1 Kc4 Ba2+ Kb5 Bf7 Ka6 Ba2 Re1 f1B Ka7 f2 Kb8 Be2 Bb7 f1B Nf2 Rg3 Ka7 Ng5 Ne4 Bef3 Nf2 Bfd5 Re3 Bf7 Kb8 Bhg2 Be4 Bh1 Bg6 Bc6 Be4 Rg1 Bef3 Ne4 Bh1 Rg2 Ref3 Bc7+
1kb1Kn1q/N3nb2/R1Pb2b1/1bRrBpQR/N2RBn2/5p2/5B2/4r2N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 Kf3 f5 c4 d5 e4 Kd7 b4 Kc7 g4 h5 c5 d3 b6+ Kb7 e5 a4 b5 d2 g6 d4 g5 a3 e6 a2 e7 h4 e8R d3 g7 h3 g6 h2 Re4 Be7 Nc3 Rh6 Qb3 d1B+ Nge2 d2 Na4 Qd4 Bg2 Bf8 Qf7+ Ne7 g8Q Qc4 g7 Ra5 Rd4 Bb3 Ng3 Ka8 b7+ Ka7 c6 Nd7 b8R Re6 Ba3 Re1 Bc5+ Nb6 Rc1 a1N Rb7+ Ka8 Ra7+ Kb8 Ra6 Nbd5 b6 Nc2 b7 Qb4 Bb6 Bc4 Bc5 Bb5 Bb6 Qb2 Ba7+ Kc7 b8B+ Kd8 Be5 d1B+ Kf2 Bg4 Be4 Bh5 Kg2 Bg6 Kh3 Qc3 Kh4 Qb2 Kg5 Qc3 Bf6 Kc7 Bb6+ Kb8 Be5+ Nc7 Kf6 Ne3 Rc2 Ng2 Rc1 Qb2 Rc5 Qa1 Rf1 Qc3 Nh1 Qh3 Rf3 Qh7 Rh3 Qh8 Ng3 h1B Rh7 Nh4 Rh5 Bf3 Nh1 Ng2 Qh7 Bfe2 Qh6 f3 Qe3 Bec4 Qg5 Qh6 g8N Nf4 Rd6 Nce6 Ba7+ Ka8 Rd4 Qh8+ Qg7 Bh7 Kf7 Bb3 Ke8 Bg6+ Qf7 Bd5 Bf6 Ba2 Bb6+ Kb8 Bg7 Ned5 Bf6 Bd6 Be5 Nf8 Ne7 Nb4 Qg4 Bae6 Qg1 Nbd5 Qg5 Bb7 Nc8 Ne7 Na7 Bbc8 Rc2 Bf1 Rc1 Rd5 Rc5 Bb5 Ba5 Ra1 Be1 Rc1 Bh4 Re1 Bf2 Bexf7+
3n1Bn1/1r1k3K/p1N1R1RP/Q1q1pnq1/r2bn3/B1N5/BRbN3n/6B1 w - - 0 1 legal: proof: b4 b5 e4 d5 g4 f5 a4 fxe4 c4 h5 cxd5 hxg4 axb5 c5 Qf3 cxb4 Qb3 Bf5 Qd1 Bc8 Ke2 g5 Ke3 e5 h4 g3 d4 b3 f4 g2 h5 b2 f5 a6 d6 g4 f6 g3 d5 Bd7 b6 Bg7 f7+ Kf8 b7 Nc6 b8R Ra7 Bc4 Rb7 Nc3 b1N Qe1 Nd2 Ba2 Bf5 d7 Ke7 Nf3 g1N h6 g2 Rb1 Bf8 Rb2 Ne2 Rg1 Ng3 Rc8 Qc7 d8N Kd7 d6 Rh7 Rb8 Rb4 Rb6 Be7 f8B Ra4 Ne6 Bh4 Ned4 Nd8 Nc6 Qa7 Qf1 Qc7 Qb5 Bg6 Qa5 Nf5+ Ke2 e3 Kd3 Ne4 Nd2 e2 R2b5 e1Q Ba3 Qc1 Rb2 Nfe7 Ke3 Qa7 Kf3 Bf2 Kg4 Bd4 Kh4 Nc5 Kg5 Bc2 Kh5 Nf5 Kg6 Kc8 d7+ Kc7 Nb8 Ne4 Re6+ Qb6 Nc6 Re7 Re1 g1N Re2 Rh7 Rg2 Nf3 Rg3 Nh2 Rg1 Nb7 d8B+ Kd7 Rg5 Qc5 Bb6 Re7 Ba7 Nd8 Rg3 Nf7 Kh7 Nd8+ Rg7 Qg1 Bb6 Qg5 Ba7 Nf7 Rgg6 Nd8+ Bg7 Ke8 Nb4 Qd6 Bb3 Bf2 Nc6 Be3 Bd4 Qc5 Ba2 Bg1 Rd6 Rb7 Rde6+ Kd7 Bf8 Bf2 Be3 Bg3 Bg1 Bf2 Na7 Be3 Nc6 Bd4
4NR2/1qBK2Rn/2B4N/1Qb1n1rn/r1Rrr3/pB2pqP1/bN2k3/6R1 w - - 0 1 illegal: No possible last move
8/1BB4K/qRB3R1/1QrN1p2/bNr1B2r/qkP1n1n1/pNR1b2b/5r2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 e3 b5 axb5 g5 hxg5 dxe3 Ke2 Ke7 Kd3 Kd6 Ke4+ Kc5 Kf5 Kb4 g4 a5 g6 h5 g5 f3 g7 h4 g6 h3 b6 f2 b7 a4 Qd3 h2 Ra2 e2 Nd2 e1Q Bg2 a3 Nc4 f1R+ Bf4 Qg3 Nh3 Qb6 Rg1 Na6 b8N Nf6 g8B Nc7 g7 Ne4 Bh7 Bd6 g8B Ba6 Nc6+ Ka4 b4 Nd5 b5 Rc8 Bg6 Rh4 Nb4 h1B Rb2 a2 B8h7 f6 Be8 Rc5 Bf3 Qc6 b6 Bb5 b7 Qa6 b8R Bc6 Bg4 Bf3 Kg6 Be2 Rb6 Qe3 Bf3 f5 c3 Qc1 Bg8 Ne3 Rc2 Qa3 Bd5 Kb3 Bg2 Bb5 Bb7 Ba4 Nb2 Bc7 Bh1 d5 Bec6 d4 Qb5 d3 Bg3 d2 Nf4 d1R Nfd5 Rd4 Kg7 Nf6 Be4 Nh5+ Kh7 Rdc4 Bd6 Bb8 Rg6 Bc7 Be7 Bb8 Bd8 Bh2 Bc7 Ng3+
4Nr2/K3b2R/1BB1q1NP/1bnNb1Q1/1BRr1N2/7b/1qp2pR1/kq3n2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 d4 Kd6 e4 c5 h4 g5 b6 f5 b7 b3 h5 g3+ Ke2 g4 Kd3 f3 Kc4 f2 Kb5 c4 h6 b2 Qf3 c3 Rh2 g2 Qe3 f4 Ne2 g1Q Ra7 g3 Bg2 f1B Bd2 c2 Nc3 f3 Qg5 Na6 b8N f2 Nc6 Qe8 Kb6 Nc5 Ne7 Nf6 Ng6 Nh5 Rh7 Ra4 Nef4 Bh3 Bh1 Rc4 Rg2 b1Q+ Ka7 Be7 Be1 Rf8 e5+ Kc7 e6 Qb2 d6+ Kc6 Ncd5 Kb5 d7 Ka4 d8R Ka3 Rd7 Ka2 Bb4 Ka1 Rc7 Bd3 Rc8 Qgb1 Rc7 Ng7 Rc6 Nf5 Rc8 Ne3 Rc6 Bd6 e7 Nf1 Rc7 Qd7 e8N Qe6 Rc8 Rc3 Rc6 Bb5 Rcc7 Rd3 Rc6 Nb7 Rc4 Rd1 Ndc7 Nc5 d5 Be5 d6 Rd4 d7 Bf6 d8B Be7 Rh2 g2 Ncd5 g1B Bb6 Rd2 Bf3 Rd4 Rg2 Bh2 Ne3 Bg1 Bc6 Bh2 Ned5 Bg3 Nh5 Bgd6 Nhf4 Be5
1Qrb4/qq4Pb/Np2qB1R/Nn4n1/4B3/RnK1Rp2/NR2Bk1r/6n1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 Bg4 b5 Bc8 b6 axb6 h4 g5 a4 gxh4 f4 exf4 a5 Ra7 a6 Ra8 axb7 Qd7 Na3 Qd6 Nb1 Qd8 d4 Kd7 Kd2 Kd6 g4 c5 e4 h5 g5 f5 g6 f3 g7 f2 Nf3 f4 Ne5 h3 Kc2 h2 Rg1 h1Q Ra3 h4 Nd2 h3 Qe2 h2 Nd3 c4 Bb2 c3 Rg2 Be7 Nb4 Nf6 Nb3 Na6 b8N Nc7 Na2 Bf5 Na6 Qc8 Na5 Bd8 Qd2 f3 Be2 f1Q Kd3 c2 Kc3 Qe6 Qf4+ Qe5 Rg6 c1N Rh6 Bh7 Qg3 Nb3 Ba1 Kd7 d6 Ke6 d7 Rc8 Qf4 Qd5 e5 Qb7 Qg3 Kf5 d5 Ke4 d6 Ke3 e6 Qb1 e7 Q1e4 e8B Qe6 Bg6 Qb1 Bb2 h1N Be4 Qa1 Qe5 Nf2 Qh2 Be7 d8R Nh3 d7 Ng1 Re8 Bd8 Qf4+ Kf2 Re7 Nfe8 Qe5 Nd6 Re8 Bf6 d8R Nf7 Rd2 Ng5 Rc2 Qb1 Ba1 Bd8 Rb2 Qd1 Qd5 Qa7 Qb7 Qdd5 Qb8 Qdb7 B4d3 Qg6 Re3 Qe6 Be4 Bg8 Rg6 Rh2 Rh6 Bh7 Kb4 N1h3 Rc2 Rh1 Bf6 Rh2 Kc3 Ng1 Rb2 Nb5+
RK4q1/1p2N2n/1B3RbN/n2bP1n1/rQ2B3/r1rN2q1/1npB3k/R1R5 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 d4 Kd7 Kd2 Kd6 Kd3 c5 Kc4 h5 Kb5 f5 a4 f4 e4 b3 g6 c4 g7 b2 a5 g2 a6 h4 a7 h3 Ra4 g3 Qe2 h2 Rb4 c3 Nh3 g1Q Ra4 f3 Qd1 g2 Bd3 f2 Qd2 f1R Ra1 c2 Nf2 Rh3 Nc3 Nf6 g8N b1N Nh6 Qg8 Kb6 Nc6 Qe1 Na5 Bd2 Bf5 e5+ Kd7 d6 Ke6 Kc7 Na3 d7 N3c4 d8R Nh7 Be4 Bg6 Rd5 Nb2 Nd3 Rf4 Qh4 Qe3 Rhc1 h1B Rd7 g1N Nd5 Qe1 Rf7 Nf3 Ne7 Qg3 Rf5 Nfg5 Rf7 Rd8 a8R Rd6 Rff8 Rc6+ Kb8 Rc3 d5+ Kd7 d6 Ke6 Bg2 Ra4 d7 Rca3 d8B Rc3 Bf1 Bd5 Bb6 Rca3 Qb4 Rc3 Nc8 Rca3 Bg2 Rc3 Nf7 Kf5 Be4+ Kg4 Ne7 Rca3 Bf5+ Kf3 Nh6 Kg2 Be4+ Kh2 Bg2 Rh4 Bh1 Rc4 Be4 Qg7 Rff1 Rcc3 Rf6 Qg8+
4Rn1n/np1PR3/RBQ5/Bp4K1/rrr5/b1B3r1/bq3nN1/N2B1Nk1 w - - 0 1 legal: proof: c4 d5 e4 f5 exf5 g5 b4 c6 h4 gxh4 b5 a6 d3 axb5 cxd5 c5 d4 cxd4 Kd2 Kf7 g4 Kf6 f4 e5 a4 h5 d6 e4 g5+ Kf7 a5 h3 f6 Ke6 a6 Kd5 a7 h4 f5 d3 Ke3 d2 Kf4 Kd4 g6 h2 g7 h3 f7 e3 f6 e2 Na3 e1R Qf3 d1R Be2 Nh6 g8N Nd7 Qc6 Rd3 Bd2 Rc1 Kg5 Rc4 Ba5 Ke3 Nc2+ Kf2 Ne7 Rg3+ Bg4 Qb6 Nf5 Qd4 Ne2 Qb2 Rhe1 h1N Nfe3 h2 Nf1 Be7 Ra2 Nf8 Nf4 Kg1 Ng2 Nf2 Na1 Be6 d7 h1N Bb6 Bb4 Ra6 Ba3 Re4 Bd5 Re7 Be6 Ba5 Nd3 Bc3 Nhf2 Ba5 Ng6 f8B Nde5 Bg7 Nf8 f7 Rb4 Bb6 Ba2 Ba5 Rc8 a8R Rc7 Rae8 Rg8 Qd6 Rcc4 Qc6 Ra4 Bb6 Rb3 Bd1 Rbb4 Qg6 Nc6 Bc3 Na7 Ba5 Rh8 Qc6 Rg8+ Kf6 Ng6 f8B Nf7 Bh6 Rg7 Be3 Nfh8 Beb6 Nf8 Kf5 Rg3 Kf6 Rf3+ Kg5 Rg3+
K3Nb2/3n2q1/QPnR1n1n/B3b1n1/RNpB2N1/rB2R2q/2qk1p2/6B1 w - - 0 1 legal: proof: c4 e5 a4 d5 a5 dxc4 a6 bxa6 Ra2 a5 Ra1 a4 f4 exf4 g4 f5 Bg2 f3 Bh3 f4 Bf1 a6 h3 g5 Ra3 a5 Ra2 Bf5 gxf5 g4 Ra3 g3 Ra1 Ra6 Qb3 Rg6 Qd1 Rg4 hxg4 Qd3 Rh2 Qd6 Rh1 Qd8 e4 Kd7 b4 Kc6 d4 Kb5 Kd2 c5 Kc3 h5 f6 g2 g5 h4 e5 h3 f7 h2 g6 f2 d5 a3 g7 a4 e6 a2 d6 a3 d7 f3 e7 Qe8 d8B Nd7 Qd3 Rh3 Ba5 Nh6 g8R Qc8 e8N Ka4 Be2 f1N b5 Ng3 b6 Nh5 Rg3 Nhf6 Be3 f2 Bd4 Qc7 Nf3 g1N Ne5 Nf3 Ng4 Ng5 Rd1 h1Q Re3 Rg3 Rd2 Qh3 Bd1+ Kb5 Bb3 Qe5 Qe4 Qf5 Qg2 Qh7 Qb7 Qg7 Be5 Rf3 Bh2 Rg3 Rd6 Rf3 Kc2 c3 Kd3 c4+ Kd4 c2 Bg1 c1Q Qa8 Qc2 Qa7 Nb8 Ke5 Kc5 Nc3 Rg3 Nd5 Nbd7+ Kf4 Kd4 Qa6 Qd3 Nb4+ Kc3 Qb7 Kd2 Qa6 Nc5 Ke5 Rf3 Rb1 a1N Rc1 Nc2 Ra1 Nd4 Ra2+ Qc2 Ra1 Nh5+ Kd5 Nc6 Ra2 Be7 f8B Nd7 Ra1 Qgc3 Bg7 a2 Bd4 Bf8 Rc1 a1B Rce1 Bb2 Ra1 Q3d3 Ra2 Qg6 Ra4 Qg7 Bc5 Be5 Bd4 Ndb8 Kc5 Nf6 Kb5 Nd8 Kc5 Nbd7+ Kb5 Nde6 Kc6 Nd8+ Kc7 Nc6 Kb7 Rf4 Ka8 Re4 Rf3 Re1 Rg3 Ra1 Re3 Ra3
4RQ1n/Kqb4r/1p1q4/5R2/nP1N1BNp/r1NR3B/3rn3/q1Nn1B1k w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 h4 gxh4 f5 a4 f6 a3 Rh3 exf6 Rh2 f5 Rh1 Bd7 Nh3 Ba4 Ng1 Bb3 axb3 axb2 Rh2 f4 Rh3 Bb4 Rh1 Bf8 Kf2 Kd7 d4 Kd6 g4 f5 e4 h5 b4 c5 g5 f3 Ke3 f4+ Kd3 b6 Kc4 h3 Kb5 h2 g6 f2 g7 c4 Nc3 b1N Bd3 f1Q Nge2 h4 Ra5 Nh6 g8N f3 Nf6 f2 Ng4 Na6 Qa4 Qd1 Re1 h1Q Bg5 f1R Nc1 Rf3 Bf1 Nf7 Bh3 Bg7 Bf4+ Be5 Qa2 Rd3 Qf2 Qdf3 Re3 Rd1 Rd3 Nc5 Qf1 Rd2 Qf2 Kd7 d6 Ke6 d7 Bc7 e5 Kf5 d5 Rh7 e6 Nh8 e7 Na4 d6 Qb7 e8B Qf6 d8N Qe7 d7 Qd6 N3a2 Ke4 Ne6 c3 d8R c2 Nd4 Qg1 Bf1 Ra6 Bd7 Nbc3+ Kc4 Ra7 Rf5 Nd1 Kb5 Ra6 Ncb3 c1N Re8+ Qe7 Be6 Ne2 Nbc1 Ra8 Ndb3 Ra7 Qc5 Qf6 Qf8 Qa1 Nd4 Qh2 Bg5 Qd6 Bf4 Ne3 Ndb3 Kf3 Nc3 Nb2 Bc8 Ra3 Bd7 Na4 Be6 Qbd5+ Ka6 Qe4 Ka7 Qed5 Ne5+ Kf2 Bd7 Kg1 Nd4 Nd1 Ng4 Qe4 Bc6 Qee7 Bcg2 Qe4 Bh3 Kh1 Nc2 Qg2 Nd4 Qb7+
1Bbr3N/1pQ2B1N/RBRP1r2/Nbq3nq/1q1k2b1/3B3r/qp6/1K4R1 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 f5 b5 e5 b6 exf4 g3 f3 Qb3 axb6 Kd1 b5 Kc2 f2 Kc3 Nc6 Qd1 b4+ Kc2 Nb8 Ba3 g5 Bb2 f4 Bc1 f3 Qe1 Bd6 Qd1 Bf4 gxf4 Nc6 h3 Ne5 h4 g4 Bg2 Nf7 Bf1 Ng5 hxg5 Qd7 Rh2 Qe7 Rh1 Qd8 d4 Ke7 e4 Kd6 a4 h5 f5 c5 d5 Ke5 g6 h4 g7 h3 a5 c3 f6 g3 f7 g2 f8B h2 a6 c4 a7 Qd7 Ra6 Rh3 Nd2 b3+ Kb1 b2 Bd6+ Kd4 e5 Qe7 e6 Nf6 g8B Ne4 Qc2 Ng5 Bd3 f1R Bf7 f2 Rc6 Qf8 Bc7 Qb4 e7 Rb8 e8N Ra8 d6 Rb8 Qa4 c2+ Ka2 c3 Nf6 Ra8 Nc4 Rb8 Bd2 c1Q a8R c2 Qa5 Qd1 Raa6 c1Q Nh7 Qh5 Be1 Qe3 Kb1 Ra8 Bb8 Qe6 Qc7 Qd5 Na5 Qa2+ Kc2 Rf3 Nh3 g1Q Nf4 Rh3 Bdg6 Qg3 Bf5 Qe3 Rg1 h1B Bd3 Bf3 Bd2 Bfg4 Ng6 Qe5 Nh8 Qec5+ Bfc4 Re1 Bf4 f1B Bc1 Re6 Be3+ Ke5 Bf2 Rf6 Be3 Qcb5 Bb6 Q5c5 Bg6 Kd4 Bf7 Qab3+ Kb1 Q3a3 Bce6 Bb5 Bc4 Qa2+ Kc2 Qaa3 B8a7 Bcd7 Kb1 Rd8 Bd3 Bc8 Bb8 Qa2+
1Bq1r3/1k3qbB/1b3p2/4R3/NrQb1R1n/K1bP1p1B/1b1R2b1/1N1NN3 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 f4 e5 a4 exf4 c5 b5 Nc3 Nc6 axb5 a4 Nb1 Na5 c6 dxc6 bxa5 c5 Qb3 c4 Qc2 Ba6 Qd1 Bc8 e4 Kd7 h4 c5 e5 Kc7 e6 g5 a6 c3 b6+ Kb8 a7+ Kb7 e7 f6 e8N c4 h5 g3 h6 g4 d3 a3 h7 c2 Kd2 g2 Kc3 a2 Kb2 g3 Rh5 Qe7 Ng7 Qc7 Qg4 Qf7 Nf5 Ne7 Ka3 c3 Ne3 Bg7 Nf3 g1B Bh3 g2 Ne1 f3 Qc4 Nf5 Nd1 Rb8 Bf4 Re8 h8R Nh4 Re5 Bd4 Rhh5 g1B Rhf5 Be6 Bh2 Bd7 Rf4 c1Q+ Kb3 Qe3 Ka3 c2 Bg3 Qe4 Bh2 Qc6 a8B+ Kc8 b7+ Kc7 Kb3 c1B Kb4 Bce3 Ka3 Bc3 Bg3 Bb6 Bh2 Rbc8 b8N Bgd4 Bb7 Be6 Nd7 Rb8 Nc5 Qcd7 Be4 Qc8 Bh7 Kc6 Na4+ Kb7 Nd2 Bg4 Rb1 a1B Rb2 Bf5 Nb1 Bd7 Bf1 Bh3 Rd2 Bg2 Rfe4 Bh1 Bh3 Bg2 Rc5 Ra8 Bb8 Ra5 Rf4 Rb5 Rcf5 Rb4 Re5 Bab2+
3q2N1/n1N1q3/p1qk1B2/1bq3Rb/2B1Rp2/1N1qn1qK/1B2P3/2RN1rQ1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 h3 g5 Bd2 f4 Be3 a6 Bc1 Bh6 Rh2 Ra7 Rh1 Rc7 h4 Rc5 Rh3 Rb5 Rh1 Rf5 gxf5 g4 Nh3 Nc6 Ng1 Bg5 hxg5 Nb8 Kf2 Ke7 b4 d5 c4 h5 f6+ Kd6 f7 d3 f8R a3 g6 a2 b5 d2 g7 d4 b6 h4 b7 h3 Rf5 h2 Bg2 d3 Rb5 g3+ Kf1 f2 Bb2 Nh6 g8N Nf5 Bd5 Nc6 Kg2 Na7 Nf3 Bd7 Qf1 d1B Nd4 d2 Qg1 Ba4 Nb3 d1Q Nc3 Qd3 Nd1 Be8 Be6 Bh5 Kh3 Ne3 Rg5 g2 b8B+ Qc7 Rc1 f1Q Rb1 a1Q c5+ Kc6 Bf6 Qa3 Bc4 Qe7 Bbe5 Bb5 Bb2 Qed8 Rc1 Qf2 Re5 Kc7 c6 Qae7 Re4 Kd6 c7 Qe1 Bh4 Qb4 Bhf6 Qc5 c8N+ Kd7 Qf2 g1Q Nb6+ Kd6 Nd5 Qg5 Rg1 h1Q+ Qh2 Qg6 Nc7 Rh7 Re5 Qhc6 Re4 Rh6 Qh1 Qgg7 Rg5 Rg6 Rf5 Rg1 Rg5 Rf1 Qg1 Qh7 Bh8 Qg6 Bbf6 Qgg7 Bb2 Qgc3 Bd4 Qe1 Bf6 Qg3+
qR3qn1/QRN2kb1/6q1/1B3Nb1/1Pp1n1nB/p2r4/N3n2N/1qR1K2B w - - 0 1 legal: proof: c4 e5 a4 d5 a5 dxc4 a6 bxa6 Ra2 a5 Ra1 a4 f4 exf4 g4 f5 Bg2 f3 Bh3 f4 Bf1 a6 h3 g5 Ra3 a5 Ra2 Bf5 gxf5 g4 Ra3 g3 Ra1 Ra6 Qb3 Rg6 Qd1 Rg4 hxg4 Qd3 Rh2 Qd6 Rh1 Qd8 e3 c3 d4 c5 b4 h5 g5 g2 f6 c2 d5 Nc6 e4 Nd4 e5 Qa8 e6 Rh7 Rh2 Rd7 e7 Rd6 Bc4 Ne2 Qd4 h4 Be3 c1B Bf2 h3 g6 Nh6 Ba6 c4 g7 Ng8 Qa7 Rd8 d6 Be3 Bg3 f2+ Kd1 f1N Nc3 Rd7 Nf3 g1Q Bb5 Nd2+ Be1 Qg6 Rf2 h2 Rc1 h1N Nh2 Nh6 g8B f3 Bd5 Ng8 Rf1 Bf4 Bh4 Nf2+ Ke1 Ng4 Be4 Bg7 Bec6 a3 Rf2 a2 Be4 a1Q Na2 Qc6 Rf1 Rc7 f7+ Kd7 f8R Ke6 e8N a4 d7 a3 Rf7 Bg5 Nd6 Qa8 Bec6 Qab1 d8N+ Ke5 Rf8 Rd7 Ne6 Rd8 Re8 Kf6 Bd5 Rd7 Rb8 Rd8 Rb7 Rd7 Nc7 f2+ Kd1 Rd8 Bh1 Ke7 Nde8 Rd3 Nd6 Ng1 Re1+ Kf6 Re8 Ne2 Reb8 f1Q+ Be1 Qff5 Bh4 Ne4+ Ke1 Qc5 Nf5 Qf8 Nh6 Ke7 Nf5+ Kf7
6K1/QnrP4/1n1p1R1n/r6b/k4r1B/NnR1b2p/2N1N1R1/2bBBbR1 w - - 0 1 legal: proof: h4 c5 d4 b5 a4 e5 axb5 g5 c4 gxh4 f4 cxd4 c5 exf4 c6 d6 Kd2 Qc7 Ke1 Qd7 cxd7+ Ke7 Kf2 f5 Kf3 h5 b4 a5 g4 d3 e4 h3 b6 h2 e5 d2 b5 h4 b7 h3 e6 a4 b6 a3 g5 a2 g6 Kd8 g7 Ra5 Bd3 Na6 b8N Bb7+ Be4 Nh6 g8R Nc5 Qe1 d1N Na6 Nc3 Nb4 N3a4 Rg2 Rg8 Qf2 Rg4 Bb2 Bg7 Ne2 Bd4 Bd5 Be3 Rf1 h1R Na3 Bc1 Rb1 a1B Bc3 Rg1 Bd2 Bd4 Be1 Bde3 Nbc2 Ba6 b7 Kc7 e7 Nb6 Bf7 Kc6 b8B Nb7 e8R Bc4 Bg6 Bf7 Bc7 Rh1 Bh7 Bh5 Bd8 Kc5 Bh4 Kc6 Nc4 Rh2 Ra1 Kb5 N4a3+ Ka4 Re6 Rh1 Rfg1 Rh2 Rg3 Rh1 R1g2 Rf1 Rf6 Rg8+ Rg4 Rc8 Rb1 Rc7 Rb3 Ng8 Rc3 Nh6 Bd2 Rd1 Be1 Rd4 Bg8 Re4 Bc4 Rd4 Ng3 Re4 Be2 Rd4 Bd1 Re4 Ke2 f3+ Kd3 f4 Ne2 Rb4 Qg1 f2 Rgg6 f1N R6g3 Nc4 Ke4 f3 Rg5 f2 Rgg6 Ra6 Kd5 Nb6+ Ke6 Ra5 Ke7 Re4+ Kf8 Nd2 R6g3 f1B Rg4 Nf7 Kg8 Nb3 Qf2 Rec4 Rg1 Rf4 R4g2 Bed2 Qc5 Be3 Qd4+ Nc4 Qa7 Nh6+ Kh7 Nb6 Kh8 Nf7+ Kg8 Nh6+
3b3k/BrPB1R2/b1qb3N/1b1pNB2/3Q4/1R4bq/1Kn1p3/BRqbN3 w - - 0 1 legal: proof: g4 a5 e4 b5 h4 f5 d4 fxe4 b4 axb4 f4 c5 f5 cxd4 g5 Ra6 Bd2 Nc6 Bc1 Ne5 Nf3 Rf6 Ng1 Nf7 gxf6 g5 Nh3 g4 Ng1 Ng5 hxg5 Bh6 Nf3 Bg7 Ng1 Bf8 Kd2 Kf7 a4 d5 c4 h5 Kc2 e5 a5 h4 c5 h3 a6 g3 a7 e3 a8B g2 c6 e4 Qe1 b3+ Kb2 b4 Bd3 h2 Bf1 e2 Nh3 g1B Qf2 e1B Qe3 d3 Nd2 Qe8 Qd4 e3 Nf2 e2 Nf3 d2 Nd3 d1B Rb1 Nh6 g6+ Kg8 g7 Ng4 Nfe5 Ba6 Be3 Rh7 Bh3 Bg3 Ne1 Bd6 Bb7 Qg6 Bc8 Bb5 Bf2 Ne3 Bd7 Nc2 Be3 B1f2 Rf1 Bg1 Rf3 h1Q Bg4 Qh3 Bf2 Rh5 f7+ Kh7 g8N Kh8 f8B Rh7 f6 Re7 Be8 Rb7 f7 B1h2 Bf5 Bh4 c7 Bd8 Rc1 Bg3 Nh6 Ba6 Bed7 Qf6 Kb1 b2 Rb3 Qg6 Ka2 b1B+ Kb2 Ba2 Rb1 Qf6 Re3 B2c4 Rb3 Bcb5 Be3 Bc5 Be7 Qc6 B7g5 Bd6 f8R+ Kg7 Rf7+ Kh8 Qd2 Qf1 Ba7 Qh3 Ra3 b3 Qd4 Ba4 Bd2 B4b5 Bc3 Ne3 Kc1 Nc2 Ba1 b2+ Kd2 Bc4 Kc3 Bcb5+ Kb3 Bd3+ Ka2 Bdb5 Rb3 Qh4 Rc1 Qh3 N1f3 Nb4+ Ka3 b1Q Ne1 Qbc2 Rcb1 Q2c5 Kb2 Qc4 Qg1 Qf4 Qb6 Nc2 Qd4 Qc1+
n2r3q/p2Rqq2/Q4rn1/q3P1q1/1RqB3k/4Np1B/2KN3N/1R1N1qB1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 a5 e5 g3 exf4 a6 f3 Kd2 f2 Ra4 bxa6 Ra3 a5 Ra1 a4 Ra3 g5 Bg2 f4 Bf1 Bd6 Ra1 Bb7 Qe1 Bf3 Qd1 Bg4 h3 f3 Nc3 Bf4+ gxf4 Bf5 Nb1 g4 Na3 g3 Nb1 Bg4 hxg4 Qc7 Nh3 Qb6 Ng1 Qd8 b4 Kf7 c4 Kg6 e4 d5 c5 h5 g5 h4 c6 Kh5 e5 a3 g6 d3 b5 a2 c7 h3 c8N h2 g7 d4 b6 g2 b7 Nd7 b8R Rh6 f5 Rh8 f6 Qe8 f7 Ne7 f8B Ng6 g8N Nb6 Nh3 g1Q Bb2 Qf7 Nf6+ Kh4 Nd6 Rh6 Nc4 Qg5+ Ne3 Qc4 Bg2 f1Q Bc5 Qf7 Rb7 Rd8 Qa4 Na8 Nf2 Qc4 Rg1 h1Q Nd1 Qf7 Kc1 d2+ Kc2 Q1c4+ Bc3 Qe7 Qa6 Qh3 Nfg4 d3+ Kb2 Qcf7 Nh2 Qhg4 Bh3 Qgc4 Nf2 d1Q Rb4 d2 B3d4 Qdf1 Nfd1 Qgf6 Rg5 Qh8 Rf5 Qg2 Rf6 Qg5 Rd6 Rg8 Rd7 Rd8 Nf2 d1Q Nd2 Qdf1 Nfd1 Qh1 Rb1 Qhf1 Bc3 a1Q+ Kc2 Qa5 Bb6 Qcg4 Bcd4 Qge6 Bbc5 Qec4+ Bc3 Qd5 Neg4 Nf8 Bg1 Qdf7 Nge3 Rf6 Rb6 Qcd5 Bd4 Ng6 R6b4 Qdc4+
8/pqb4R/2n1K3/R3bR2/2rB2NQ/pqbp1N1N/1BrP3n/r2k1B1N w - - 0 1 legal: proof: b4 c5 a4 b5 c4 bxa4 f4 e5 g4 exf4 g5 Ba6 bxc5 Bb5 g6 hxg6 cxb5 g5 Bb2 g4 Ba3 Be7 Bc1 Bf8 Kf2 Ke7 e4 Kf6 h4 Ke5 c6 Kd4 e5 f5 c7 d5 c8N g5 b6 a3 h5 f3 Kg3 f2 b7 f4+ Kh2 f3 Kg3 Nc6 b8N Bb4 e6 Qc7+ Nd6 Qb7 h6 Bc3 e7 Nf6 h7 Rc8 Bd3 f1Q h8B f2 e8R Qb3 Ba6 Qfb5 Ne4 Kd3 Rh7 f1R Nh3 d4 Qe1 Kc2 Bb2 Qb7 Nef2 Rh1 Bf1 d3 Re3 Rc7 Nd7 Rac8 Ne5 Rg1+ Kh2 Rh1+ Kg2 g3 Kf3 g2 Nfg4 g1B Qh4 Kd1 Re4 Bc5 Ra4 Bd6 Ra5 Rg1 Ke3 Rh1 Nf3 Bde5 Nh6 Ng4+ Ke4 Rg1 Kf5 Nh2 Bg7 g4 Bf6 g3 Ng4 Q3b5 Ke6 g2 Bg7 Rh1 Bh8 g1B Bg7 Bb6 Bh8 Bcd4 Nc3+ Kc2 Ne4 Bc3 Nef2 Qb3+ Rd5 Rg1 Nh1 Bba5 Re1 Bb6 Re2 Kd1 Re4 Nb4 Rd4 Rc4 Rf4 Nc6 Ra5 Bbc7 Rf5 Kc2 Be2 Ra1 Bf1 Kd1 Bg7 Bed6 Bd4 Bf4 Rh8 Bfe5 Rh7 Bb8 Bf2 Rf4+ Rd5 Nb4 Bg1 Bcd4 Qh5 Rc2 Qh6 Nc6 Qh4 Bc3 Bc5 Rc4 Bd4 Bbd6 Ra5 Bc7
N1QRbR1r/R2brB2/1N2p1pr/5B2/pP1k1n2/3B4/6nr/RN1qn2K w - - 0 1 illegal: No possible last move, all moves rejected
6b1/2rRN3/BQbn1p2/1BPq1q1K/2r1R1B1/4p1R1/3rN1pN/1k1rnR2 w - - 0 1 illegal: No possible last move, all moves rejected
NBR1RqNR/2q1b3/2B1Q1pB/2kr3N/4PNp1/5qK1/p1r4r/1nb3b1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 bxa4 g5 d5 g6 d3 Nf3 hxg6 Ng1 g5 Qe2 g4 Qf3 Nh6 Qd1 Ng8 f3 e5 Kd2 d4 Ke1 Be6 Ra3 Na6 Ra2 Bd5 Ra1 Nc5 exd5 e4 Qd2 e3 Qd1 Ne4 fxe4 Qa5+ Bd2 Qc7 Bc1 Qd8 b4 Ke7 c4 Kd6 h4 a5 b5 f5 h5 f4 h6 e2 Kf2 a3 h7 a4 b6 f3 b7 d2 b8B+ Qc7 Nc3 g6 Nb5+ Kc5 d6 a2 d7 a3 d8N d3 Nh3 Bd6 Qb3 d1Q Nf4 d2 Kg3 f2 Rh6 e1B Ne6+ Kb6 Rh4 Ne7 Ng7 Nd5 Nh5 Nc3 c5+ Kc6 Qg8 Nb1 Qe6 Qb3+ Bd3 d1R Rh3 Rc8 h8R Bd2 Re8 f1Q Rh1 Qb4 Bc2 Be3 Ba4 Rd5 Bd2 Bg1 Be3 Nc3 Rc1 a1B Rc2 a2 Bc1 Kb7 c6+ Kb6 Rhh2 Nb1 Rc4 Qh7 Nc7 Be7 Bb5 Bb2 Rc5 Ra7 Na8+ Ka5 Bd2 Bc1 c7 Qc3+ Be3 Kb4 Bc6 Qcg7 Rcc2 Qf8 Rc3 Ra3 Rc5 Rc3 Rh1 Rcd8 c8N Rc2 Rc3 Rdd2 Rh4 Rh2 Bd2 Bec5 Ne7 Rd5 Ng8 Be7 Bb5 Ba3 Ng2 Qfh6 Nhf6 Qf8 Bg5 Bd6+ Nf4 Qa7 Rcc8 Bc1 Bc6 Be7 Rh8 Qc7 Nh5 Kc5 Bh6 Qf3#
BR4R1/nNq1QB2/1RBP1p2/8/1N1rRn2/3nppbr/q4kq1/3KN1r1 w - - 0 1 legal: proof: f4 e5 h4 b5 e4 g5 c4 gxh4 cxb5 d6 b4 Nf6 a4 Bh6 a5 Bh3 b6 Qc8 b5 Qd8 Ba3 Bf8 a6 Ng8 Bc1 Bc8 Bb2 Bb7 axb7 exf4 e5 Nh6 e6 Ng8 Be5 dxe5 g4 Ke7 d4 Kf6 g5+ Kf5 g6 Ke4 g7 Ke3 d5 a5 e7 c5 e8B h5 Nd2 c4 Qc1 c3 Bc4 a4 Ngf3 f6 Rh2 c2 Be2 e4 Bf7 h3 Qb1 c1N Ra3+ Nd3+ Kd1 h4 Nb3 Ne7 g8B Qc7 Nc5 Nbc6 b8R Ng6 b7 Bd6 b6 Na7 Rb3 a3 Ne1 a2 Bf3 a1Q Rd2 Be5 d6 h2 Rbb2 h1Q Re2+ Kd4 Be8 h3 Bc6 h2 Bf7 Rh3 Rg8 Qa2 b8N Qg2 b7 h1R Rb6 Rg1 Nba6 Rc8 b8R Re8 Rd2 Ke3 Nb7 Re6 Rdb2 Re7 R2b4 Kf2 Rc4 e3 Nb4 Re6 Bfd5 f3 Re4 Bg3 Qa1 Re7 Qe5 Re8 Qe7 Ngf4 Nc5 Rc8 Ba8 Re8 Bdc6 Rc8 Nb7 Re8 Qf8 Re5 Qe8 Rd5 Qe7 Rd4
3nK1R1/1r1Nb1bb/2B1Bn2/2N3Q1/1k1B3r/2NP1ppr/4RR1p/b4B1n w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Nf3 g4 Ng1 Qg5 hxg5 fxg3 e4 Kd7 Ke2 Kd6 Ke3 Kc5 Kf4 f5 Ke5 h5 b6 a5 g6 c3 d3 f4 b7 f3 b3 c2 g7 g2 Qd2 a4 Qf4 h4 Nd2 g3 Bb2 c1B Rh2 a3 Ra2 h3 Qg5 Ra7 Ne2 g1N Nc3 Rh4 Re2 Nf6 g8B Be7 Be6 Kb4 Kf5 c5 Kg6 c4 Kf7 h2 e5 Nc6 b8R+ Rb7 Nde4 Nh3 Nc5 Nf2 Ra8 Bd7 Rg8 Nh1 Ba1 Bb2 Rf2 Bc1 Rae2 a2 Bb2 Rh3 Ba1 Ka3 b4 Bb2 b5 Kb4 b6 Bc8 Bd5 Bf5 e6 Rb8 b7 Bh7 Nb5 Be5 Bd4 c3 Bb3 c2 Nc3 a1B Ba2 Rc8 b8N c1R Nbd7 Rb8 Bc4 Rb7 Bd5 B7d6 e7 Nd8+ Kf8 Rb1 Be6 Re1 Rc2 Re4 Rce2 Bb8 e8B Reh4 Bg6 Bbc7 Be4 Ba5 Bc6 Bac7 Qg7 Bcd6+ Qe7 Nd5 Ke8 Bg7 Qf6 Be7 Qg5 Nf6+
1B6/b2n2pb/R1NB4/1rp1qpb1/1b1N1R2/KB4P1/2Rb2QN/k2qN1b1 w - - 0 1 legal: proof: f4 a5 c4 d5 d4 dxc4 e4 b5 a4 bxa4 d5 h5 Qg4 h4 Qg3 Ra6 e5 h3 Qf2 e6 g3 Rd6 Qd2 Nd7 Qg2 hxg2 exd6 e5 Ra3 e4 Ra1 Ne5 fxe5 Rh3 Nd2 Rh4 Nb1 Rh8 Kd2 Kd7 Kc3 c5 b4 f5 Kb2 e3 h4 e2 h5 e1B h6 c3+ Ka3 c2 b5 Ba6 b6 Qe7 b7 Bd2 b8B Bc4 h7 Nf6 Nf3 g1B Rh4 Qe8 Bb2 c1B Nh2 Bg5 Bg2 Bcd2 Rf4 Be7 Be4 Bd8 Bc2 Bb6 Bb3 Ba7 Ra2 Rg8 h8Q Qh5 Bd4 Qd1 Rc2 Rd8 Qh3 Bb4+ Ka2 a3 Nd2 a4 Ndf3 Rc8 Bc3 Rc6 Qg2 Rb6 Bb2 Rb5 Ne1 Bd2 Bc1 Bb4 Ka1 a2 Kb2 Bd2 Ka3 a1B Bb2 Bd3 Bc3 Bc4 Ba5 Bac3 e6+ Kc8 d7+ Kb7 d8R Ka6 e7 Nd7 d6 Bg8 Bac7 Bh7 Rf8 Ba5 e8N Bac3 Rf6 Bb4+ Kb2 a3+ Ka2 Nb6 d7 Ka5 d8N Bde3 Qf3 Bed2 Bd6 Nd7 Re6 Nf8 Nc7 Nd7 Bc4 Ka4 Qg2 Ka5 Kb3 a2 Rh6 a1Q Nce6 Qe5 Nd4 Ba3+ Ka2 Ka4 Bb3+ Kb4 Rb2 Kc3 N8c6 Bb4 Rg6 Bde3 Re2 Ba5 Ka3 Bd2 Ka4 Kb2 Rf6 Ka1 Ka3 Bdc3 Rc2 Bd2 Rf7 Nb6 Rb7 Nd7 Rb6 Bac3 Ra6 Bb4+
1nq3r1/qp3p2/nn4Nk/N1BNp2N/n6q/1B1Rb3/1P1QR3/1K1Rq1B1 w - - 0 1 legal: proof: e4 d5 h4 c5 d4 cxd4 a4 g5 a5 gxh4 a6 d3 Be3 Qa5+ Bd2 Qxa6 Bc1 Qa2 f3 a5 f4 e5 f5 Be6 fxe6 d4 Qf3 Ra6 Qg4 Rd6 Qd1 Rd5 exd5 Qb3 Nc3 Qc4 Nb1 Qa2 Kd2 h5 g4 a4 c4 a3 c5 h3 g5 h4 e7 h2 d6 h3 g6 Qd5 g7 a2 c6 Rh7 c7 Qc6 c8N Nf6 g8R Na6 Ne2 Rh8 Na7 Qc8 Nc6 Nd7 Nf4 Ndb8 Rg3 Bh6 Nc3 Rg8 Na5 Bg5 Rhg1 h1Q Nd5 h2 R1g2 Bh6 Rb1 a1Q Re2 Qg1 Rge3 h1Q Ng6 Qh4 Bh3 Qa3 Be6 Qac5 Qe1 Qa7 Kd1 d2 Rd3 Be3 Ra1 Qd7 Kc2 d1N Kb1 Qc8 Bd2 Qf1 Bb4 Qfh1 Qd2 Q1e1 Bc5 Nc3+ Kc2 Na4 Rd1 Nb6 Kb1 Qh5 Nb4 Qhh4 Bb3 Kd7 Nd5 Ke6 e8N Kf5 d7 Kg5 d8B+ Kh6 Rc3 d3 Nef6 Nb4 Nh5 N4a6 Qc2 d2 Rd3 Qh2 Bh4 Qhh3 Bf2 Qh4 Rc1 d1N Qd2 Nc4 Bg1 Nb6 Kc2 Nc3 Rd1 Nca4 Kc1 Kg5 Kb1 Kh6
Bb1B3k/1RQB1K2/1rb2q1N/Np1R3P/p3B2b/2qbpR2/5r2/3Nbb2 w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 f5 g5 fxe4 g6 Na6 a5 hxg6 Nh3 g5 Ng1 g4 b4 Nf6 Bh6 Nd5 Bc1 Nb8 Qf3 Nc6 Qd1 Nb6 axb6 a5 Qe2 a4 Qd1 Na5 bxa5 Ba6 Bg5 Bb7 Bc1 Bc8 Kd2 Kf7 c4 Kg8 h4 g5 f4 e5 f5 d5 b7 g3 b8N g2 f6 d3 Kc3 g4 c5 d2 f7+ Kg7 c6 e3 a6 g3 c7 e2 a7 e1B Nf3 g1Q Bg2 e4 Nc6 Qf6+ Nfd4 Bb7 c8B Bd6 f8R Rh6 Na5 Bb8 Bd7 Bc6 Qc2 d1B+ Bd2 e3 Be4 g2 h5 Be5 Rh3 Bb8 Rf7+ Kh8 Rf3 Be2 Kb4 Rg6 Kc5 Bd3 Nf5 d4 Nc3 Qh1 Ra2 g1B Nh6 Bgf2 Nd1 Bh4 Ra3 Bf1 Rd3 Qh2 Bc3 Qc7 Qh2 Qc8 Qc7 Rg2 Rd2 d3 Re7 Rf2 Rf7 Qg7 Kd6 Qa6 Bb4 Qc3 Ke6 Qb6 Be7 Qbd4 Rb2 d2 Bd8 Bd3 Rg7 Qe5+ Kf7 Qf6+ Ke8 Bf1 Rb4 Bd3 Rd4 Bf1 Rd5 Bd3 Nb2 d1B Re7 B1e2 Nd1 Qg5 Kf7 Bf1 Qb6 Bd6 Qc5 Rb8 a8B Rb6 Qc4 Bb8 Qc5 Bb7 Qc7 Qgf6+ Ke8 Ba7 Qd6 Qf5 Bc8 Bf6 Kf7 Bc6 Rb7 Bb8 Bd7 Qf4 Qc7 Bh4+ Bdf5 Qg5 Bd7 Qgf6+
B1B3N1/3Q1R2/1p1b1bPN/1B1R2p1/q1RK1k2/N2bn1pp/3rq2n/1R3r2 w - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 cxd5 f6 d6 fxg5 Bh3 g4 Bg2 Qf6 Bf1 Qd8 h4 g5 d4 Ra3 h5 Ra4 d5 Qf6 Be3 Ra8 Bd4 Qg6 hxg6 exd4 Kd2 Kd7 Kd3 c5 e4 h5 f4 b3 a4 g3 f5 b6 f6 b2 f7 h4 e5 h3 a5 Bg7 f8R Na6 Na3 Nf6 Rc1 Nc7 a6 Ng4 a7 Bf6 Rc4 Ba6 Ne2 Nh2 Nf4 Rd8 a8B Rg8 Ke4 d3 Nh5 b1Q Ke3 d2 Rf7+ Be7 Be2 Rgf8 Bg4+ Qf5 Re1 Qe6 Qa4+ Bb5 Rb1 d1Q Qa7 Qa4 Nf6+ Kc8 Ng8 Bf6 Kd3 Rd7 Ke4 Qe7 e6 Kd8 Rd4 c4 Bf5 c3 Rc4 Qe8 e7+ Kc8 Ke3 c2 Kd3 c1B Bg4 Qd8 e8B Qe7 Bf5 Qe6 Bg4 Bf4 Bf5 Be7 Kd4 Qe2 Qb7+ Kd8 Qc6 Kc8 Bg4 Kb8 Be6 Rd8 d7 Ba6 d6 Nd5 Bf5 Ne3 Bg4 Rc8 d8N Bf6+ Ke4 Rc7 Bc8 Rb7 d7 Bd6 Rh7 Rc7 Nf7 Bb5 d8R Rd7 Nfh6 Rff7 Rcb4 Rf8 Qd5 Kc7 Rf7 Bc4 Qe5 Bd3+ Kd4 Re7 Bec6 Rd7 Bb5 Bh8 Rg7 Rf1 Rf7 Bf6 Kc3 Nf5 Qd4 Ne3 Rc4+ Bc5 Bd5 Kd6 Bdb7+ Ke6 Ba8 Bd6 Re8+ Bde7 Bbc6 Bc2 Bb5 Bf5 Rd8 Be4 Ng4 Kf5 N4h6+ Kf4 Re8 Bf8 Re5 Bc5 Qd5 Rd6 Qc6 Rd4 Qd7 Bd6 Rd5 Rd2+ Re5 Rc2+ Kd4 Bd3 Rg7 Bfe7 Rd5 Rd2 Rf7+ Bf6+
1bN4R/pB1BR1B1/1qqQn1p1/4NpK1/r1R2n2/N5k1/n3B1Pp/3q1b2 w - - 0 1 legal: proof: f4 b5 c4 e5 cxb5 exf4 a4 c5 d4 c4 a5 Qxa5+ Nd2 c3 d5 Qd8 d6 Bxd6 Nb1 Bf8 h4 g6 h5 f6 h6 Na6 Qa4 Rb8 Qd4 Rb6 Qd1 Re6 Qa4 Re7 Qd1 Rg7 hxg7 Qb6 Na3 Qa5 Nb1 Qd8 Kf2 Kf7 Kf3 Ke6 Kg4 Ke5 e4 h6 b4 c2 b6 f3 b7 f2 b8N Nc7 b5 Ne7 g8B Ne6 b6 d5 b7 d4 Bb2 c1N Rh4 Nd5 Na3 Bd6 Be2 f1Q Qd3 Na2 Re1 Qb6 Qa6 Bc7 Nd7+ Kd6 b8R d3 Bf7 d2 Nf3 d1Q Nfe5 Ndf4 Bc3 Qc6 Nb6 Qg1 Be8 Qgc5 Bd7 Rd8 Ra8 Bb8 Bd4 Bb7 Qd3 Ba6 Nc8+ Kc7 Bb2 Q6b6 Bc6 Rd4 Bb7 Ra4 Qd5 Qcc6 Qc5 Kd8 Qd6+ Ke8 Nec4 Kf7 e5 Nf8 e6+ Kg7 e7 h5+ Kg3 Kh6 e8B Kg5 Bd7 f5 Bg7 N8e6 Ne5 Bc4 Bg4 Bf1 Be2 Nd5 Rd4 h4+ Kf3 h3 Rc4 h2 Kg3 Nd4 Kh3 Kf4 Kh4 Ke3 Kg5 Kf2 Nc2 Nf4 Na3 Bc7 Ne7 Kg3 Rh8 Bb8 Nc8 Nde6+ Kh6 Kf2 Nd3+ Kg3 Bg4 Ng5 Re7 Ne6 Ne5 Nf8 Kg5 Qbb1 Bf3 Qbb6 Be2 N8e6+
K1R3N1/B1brpR2/1P4p1/1r4b1/knBQrNp1/7N/3nr2p/1R1N1Bb1 w - - 0 1 legal: proof: d4 b5 h4 f5 g4 c5 a4 bxa4 e4 d5 h5 cxd4 h6 d3 Rh5 d4 Rh2 Bb7 Rh1 Bd5 exd5 Qd6 Bg2 Qf6 Bh3 g6 Bf1 Qg7 hxg7 fxg4 Kd2 Kd7 c4 a5 f4 h5 b4 a3 c5 h4 b5 a2 f5 a4 b6 a3 f6 h3 f7 h2 d6 Kc6 d7 Kb5 d8R Nc6 Rc8 Nb4 c6 Ra4 c7 Nf6 g8N Rh5 Nc3+ Ka5 Nh3 Rb5 Rb1 a1B Rg1 a2 Rh1 Bg7 f8N Bb2 Ne6 a1B Nef4 Bh6 Rg1 Bg5 Rg3 Ra2 Rf3 Ra4 Qe2 Ra2 Nd1 Ka4 Qe3 Ba3+ Ke1 d2+ Kf2 d3 Qd4 Ne4+ Ke3 Nc5 Rf2 Nb3 Ke4 Rb2 Re8 Ra2 c8B Rc2 Ba6 Rc4 Ne3 d1R Rc8 Rd2 Nd1 Re2+ Be3 d2 Rf3 Nd3 Rf2 Bc5 Kd5 Bb2 Kc6 Nb4+ Kb7 Bd6 Rf3 Bc7 Ka8 Bc3 Bf2 Ba1 Bg3 Bc3 Qg7 Bd4 Qf6 Bg1 Qd4 Rbe5 Rf2 R5e4 Rf3 Rc5 Bc4 Rf5 Ng2 Rb5 Rf7 Bd8 Bb8 Bc7 Ndf2 d1R Ngf4 Rdd2 Ba7 Rd3 Nd1 Nd2 Qf2 Rdd5 Qd4 Rd7
1Bbb4/2npN2p/1N3Pb1/2p1K3/1nRB3n/2r3BR/1Rpr2RQ/3kn2N w - - 0 1 legal: proof: c4 c5 h4 f5 e4 g5 exf5 gxh4 d4 b5 d5 Qc7 b4 Qc6 dxc6 a6 Be2 bxc4 b5 Bb7 b6 Bc8 Bd3 Ra7 Bc2 Ra8 Ba4 Kf7 Bb5 axb5 Bf4 Ke8 Bg5 Bg7 Bc1 Bf8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 f4 c3 g4 b4 a4 c2 c7 b3 g5+ Kg7 a5 b2 g6 Kf6 b7 h3 g7 h2 a6 Bd6 a7 Be7 Na3 b1N Qd6+ Kf7 f6 Kg6 f5+ Kh5 f7 Kg4 f8B Bd8 f6 Nh6 Nc4 Na6 b8B Na3 Ne2 Rg8 Bb2 Nb5 Rab1 Nb4 Ng3 Nf5 Bd4 Nh4 Be7 Re8 Nb6 Rg8 Rb2 Re8 Rf1 h1B+ Rf3 Bg2 g8N Bf1 Nh1 Bd3+ Ke3 Be4 Rh3 Bg6 Bf8 e4 Qh2 Re5 Bd6 Rd5 Bg3 Rd6 Ne7 Rd5 Kd2 e3+ Ke2 Bb7 c8R Nc7 Ke1 e2 Kd2 e1N Ke3 Be8 Ke4 Bg6+ Nf5 Rd6+ Ke5 Kf3 Ne7 Ba6 Nf2 Ke2 Nh1+ Kd1 Bg1 Ne6 Bd4 Bc7 Rg8 Bd8 Bc7 Rb8 a8R Bc8 Ra4 Ra8 Bb8 Nc7 Ra3 Ra4 Rc3 Ra3 Rc4 Rc3 Bf4 Bh5 Rg2 Be8 Bg3 Bg6 Bdf2 Rdd3 Bd4 Rd2
7r/Rp1p4/R4R1n/3P1Q2/qb3NB1/1p2NKB1/np2p2N/r2rBnkN w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 axb4 Na3 gxh4 Nb5 c6 Qg4 c5 Na7 b3 Qb4 cxb4 Nxc8 Bg7 Bb2 Bh6 Bc1 Bf8 Ke2 Kf7 c4 Kf6 g4 Ke5 a4 Kd4 f4 h5 f6 e5 f7 e4 a5 e3 g5 h3 g6 b2 c5 b3 g7 h2 c6 h4 c7 h3 a6 Nh6 g8N Qf6 f5 Qh4 f6 Qf4 a7 Bg7 f8Q Ke4 d4 Qg5 d5 Ng4 f7 Bd4 Bd2 Na6 Nh6 Qd8 Nf3 Nc5 Nb6 Kf4 c8N Kg3 Ra6 Rb8 a8R Qh4 R8a7 Ne5 Ng4 Ra8 Nc4 Ne4 Ne7 Bc5 Ng6 Bb4 Nf2 Ng4 Nf4 Nh6 Be1 Qg4 Bg2 Qh4 Rf1 h1R Nh2 Nc3+ Kd3 e2 Ke3 Rg1 Bf3 Na2 Bg4 Rh1 Qd8 Rg1 f8B Rh1 Qf6 Rg1 Ne6 Kg2 Qf5 Rh1 Bd6 Rg1 Nf3 h2 Bg3 h1N Nh2 Rae8 Bf4 Ng3 Nh1 Ra8 Rf3 Rf1 Bc7 Kg1 Nf4 Qd8 Bd6 Qa5 Rf2 Qa4 Kf3 Rac8 Ne3 Rc1 Bc3 Rfd1 Be1 Ba5 Be7 Bb4 Bh4 Nf1 Bg3 Ra1 Nfg2 Rg8 Qf7 Qa5 Ke4 Nc1 Rf5 Rd3 Kf3 Rh8 Nf4 Na2 Qh5 Qa4 Rff6 Rd4 Qf5 Rdd1
KB1B4/N1N1N1Q1/Bq2rR2/3p1p1k/RP5r/3b1p1q/rp3p2/2b1Rq1R w - - 0 1 illegal: No proof kernel
1qQ2B2/Rq1ppK1P/1R1rp1R1/R4Bp1/3q4/2qbp1B1/2N3kb/n1N3N1 w - - 0 1 illegal: No proof kernel
1B3b2/R1pppN2/1PRRR2N/1Knq1nBk/1pBNqq2/4q3/1p3Q2/2r5 w - - 0 1 illegal: No proof kernel
4kNR1/P4R2/BBqrppr1/2R2N2/1q4p1/p3KNp1/b3rr2/nR2B1Q1 w - - 0 1 illegal: No proof kernel
NK3r1n/2p1R1p1/3p4/Q2pbR2/b2r1nRB/pp3N1N/kB5P/b4B1R w - - 0 1 illegal: No proof kernel
1NqbnBkr/4n1P1/1qr1N3/b2bRRq1/6nQ/3R2n1/rBBNN2K/4n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 a5 g4 h5 Kg2 f5 e4 Kf7 c4 h3+ Kh2 a4 g5 a3 c5 a2 e5 h4 c6 f3 b6 f2 b7 d3 b5 f4 b6 d4 c7 f3 Nc3 d2 Bb2 d3 Rc1 a1B Ba3 Nf6 g6+ Kg8 g7 Bb4 e6 Nc6 b8R Bb7 Be2 f1Q c8N f2 Qe1 d1N e7 d2 e8N Ne3 Rd1 Ng2 Na7 Qc8 Nc7 Ne8 Nb1 Bf6 Ne6 Bd8 Bd3 Bc3 Bf5 Qb5 Bb2 f1Q Bc2 Qf2 Ne2 Qff5 Kg1 Qg5 Qg3 Ne1 Kf2 h2 Rf1 h1N+ Kg1 h3 Rf5 Bb4 Qg4 Ng3 Qh4 h2+ Kf2 h1N+ Kg1 Nf2 Kh2 Nd4 Nc6 Ra2 Ra8 Bc3 Ra5 Qb4 Rae5 Ng4+ Kh3 Ba8 b7 Qb6 b8B Ba5 Bd6 Bb7 Nb8 Nc6 Bf8 Ne7 Be4 Nh6 Kh2 Bd5 Rc1 d1R Rc3 Rd4 Bc2 Rc4 Nd2 Rc6 Rd3 Ng4+
2BR4/r6N/Rb1r1rkr/1b1B1n2/1B4q1/Nn2rNP1/r3n1K1/b2RNr1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 b4 Kf7 e4 a5 c4 h5 e5 d5 c5 d3 b6 f3 b7 d4 c6 a4 e6+ Kg6 g3 f4 c7 d2 e7 d3 e8N a3 b5 a2 b6 h3 Ne2 h4 Nf6 h2 Nbc3 h3 Na4 Qd7 Nb2 Nc6 b8N Rh6 b7 Ra7 Nd4 Qg4 Nd5 Bc5 Be2 Nge7 Na4 Bd7 c8B Na5 Nb2 Nf5 Qf1 d1R Nb4 d2 Bc4 Nb3 Na4 Bb5 Ba3 Bb6 Rg1 h1R Nd7 h2 b8R Re1 Nc3 Re3 Qh3 d1N+ Kf1 f2 Nb1 Nc3 Kg2 f1R Nf3 Rd1 Nd3 Ne2 Nde1 Rd6 Bb4 Rf6 Na3 Rd6 Rc1 a1B Bd5 Rf6 Rf1 Rd6 Rf2 Rf1 Nf6 h1R Qh4 Rh3 Rd1 Rhh1 Nac2 Ra2 Na3 Rh7 Qh2 Ra7 Qg1 Rh6 Nh7 Nc3 Rfd2 Ne2 Ra8 Rf7 Ra6 Ra7 Nh2 f3+ Kh1 f2 Kg2 Re8 Qh1 Ree6 Nhf3 Rf6 Nec2 Re1 Rd3 f1R Rd4 Nc3 R4d2 Ree7 Nce1 Re3 Bg8 Ne2 Rd4 Rde6 Rd8 Rc6 Bd5 Rcd6
2b1N2b/1Rbbr1nR/kb1rBN2/2Q3BP/3b2n1/8/1nr1R1bN/1Nq2BK1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 g5 b4 a5 e4 d5 c4 Kd7 c5 Kc7 b6+ Kb7 h5 a4 e5 g3+ Kg2 a3 e6 g4 e7 a2 e8R d3 c6+ Ka6 b7 d4 c7 Ne7 Qe2 Nd7 Qd2 Rh7 Na3 Nf6 Nh3 f3+ Kg1 f2+ Kg2 f4 Be2 f1B+ Kg1 f3 Nb1 g2 Kh2 g1B+ Kg3 f2 Bd1 Bg2 Qc2 f1B Bg5 d2 Be2+ d3 Nf2 d1N Qc5 Nb2 Rh4 Bd7 c8B Qa5 Rh2 Qa3 Rd8 Bh6 Rh8 Rg7 Rh7 Nf5+ Kf4 g3 Ng4 Bh3 Kf3 Re7 Rg2 Be3 Nh2 Bd4 Rf2 g2 b5+ Ka5 b8N g1B Na6 d2+ Bd3 d1R Nc7 Ng4 Re2 Ng7 Ne8 Bfg2+ Kg3 Bge3 Bc4 Rd3 Ba6 Rc8 b6+ Ka4 Bab5+ Ka5 b7 Qc3 b8N Qc1 Be6 Rd1 Qf5 Rc2 Qc5 Bc8 Nd7 Rd3 Ba4+ Ka6 Ndf6 Rd1 Nc3 Rdd2 Rb1 a1B Bc6 Na4 Rb7 Nb2 Nb1 Bf4+ Kh4 Bc7 Bf3 Bb6 Kg3 Rd1 Bh4 Bd2 Bg5 Bda5 Bc6 Bdc3 Bcd7 Rd6 Ba4 Bd4 Bc6 Bh1 Bg2 Bc7 Bf1 Bab6 Bg8 Bc6 Be6 B6d7 Kf3 Ne3 Kf2 Bg2 Kg1 Ng4+ Be3 Nf5 Nd5 Bh8 Ndf6 Ng7 Bg5 Nc4 Qf2 Bad4 Qe3 Nb2 Qf2 Be5 Qc5 Bd4+
2n5/k3n1n1/4b2N/1Q1n1BBr/q1P2Nn1/3nRrbb/1B1B2q1/R1qNK2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 Kd7 b4 Kc7 g4 Kb6 g5 h5 e5 f5 e6 a5 g6 h3 g7 a4 e7 f3 e8R h4 Bd3 a3 Kf1 h2 Ne2 f2 Nf4 h3 Qe2 a2 Qe5 Ra3 Rg1 h1N Qe2 h2 Nc3 Qg5 Qd1 Ne7 g8N Qg2+ Ke2 f1B+ Ke1 Nd7 Be4 d3 Qc2 d2+ Kd1 d4 Bd3 Ka7 Ne6 f4 Nh6 f3 Nc7 f2 Qb3 Nb6 Rd8 Be6 Bf5 Nbc8 Rb1 a1Q N7d5 Ng3 Bb2 h1N Rc1 Nh5 Nf4 Ng7 Re8 Qa2 Ra1 Rh7 Kc2 d1N Kd2 Ne3 Nd1 d3 b6+ Kb7 b5 Ng4 Nf7 Rh5 Nh6 Ka8 b7+ Ka7 Qb4 Rc3 Qb3 Qa4 b8B+ Kb6 Bc7+ Ka7 Qb4 Ra3 Bd8 Rb3 Kc1 d2+ Kc2 Re3+ Qb3 Rf3 b6+ Ka8 b7+ Ka7 Ne3 d1N Kd2 Nc3 Qb5 Ncd5 Nd1 Qg3 Ba5 Bh3 Bd8 f1Q b8B+ Ka8 Bbc7 Ka7 Ba5 Nhf2 Rh1 Qfg2 Ke1 Q3h2 Ne2 Qf4 Bac3 Qc1 Nf4 Ng6 Bd2 Bd6 Bg5 Nge7 Ng6 Bh2 Nf4 Bg3 Rd8 Nc3 Rd3 Ncd5 Re3 Nd3#
nr6/1B2N1bB/N1P1b1q1/N3QR2/4bqq1/brnn4/k1bNR1RB/2b3K1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 c4 Kc5 e4 Kb4 b6 f5 b7 d5 h5 a5 e5 g5 b3 a4 h6 a3 h7 g3+ Kg2 a2 c5 f3+ Kh3 g2 Kh2 f2 e6 g4 c6 d3 e7 d2 e8B d4 Qc2 d1B Ne2 g1B+ Kg2 d3 Nd4 d2 Ne6 f4 Bd3 f3+ Kg3 f1Q Nd4 f2 Ne6 Ne7 Nd4 Nd7 b8N Ng6 Qb2 Ra3 Rh5 Qf6 Ba6 Nb6 Rf5 Ne5 Bg6 Be6 Bc8 Rg8 h8N Nd3 Bh7 Na8 Ng6 Bg7 Ne7 Qg6 Ba6 Bf3 Bc8 d1N Bf4 Bh6 Qe2 Nc3 Qe5 Qc1 Ba6 Bd1 Kg2 f1B+ Kh1 g3 Bc8 Bfe2 Kg2 Bf3+ Kf1 Bfd5 Na6+ Ka5 b4+ Ka4 b5 Be4 Nb3 Bc5 b6 Bd6 b7 g2+ Kg1 Bg7 Bg3 Qf4 b8R Bc5+ Kh2 g1Q+ Kh3 Rf8 Na5 Be3 Rb2 Rb3 Rd2 Bc2 Bb7 Rb8 Re2 Bc5 Nd2 Ka3 Rc1 a1B Bh2 Bb2 Rb1 Q1g5 Rg1 Ka2 Rg4 Bca3 Rg3 Ne1 Rg4 Bc1 Rg3 Nf3 Kg2 Ne1+ Kg1 Qgg4 Rgg2 Nd3
3RN3/K3r1bn/b2N2n1/1b1k2qP/3nR3/B2QBqr1/n2N1RB1/bn2bR2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 f5 h4 g5 b4 d5+ Kb3 a5 Ka4 d3 c4 d2 e4 d4 h5 g3 c5 f3 c6 d3 b6 f4 Kb5 g4 e5 f2 b7 f3 c7 a4 Kb6 g2 b5 a3 Bb2 g3 Bc3 a2 Qc1 d1N Nd2 Qg5 Bb4 Bg7 Bc3 Rh7 Be2 f1Q Bd4 f2 Rb1 a1B Rh4 Ne7 Qa3 Nbc6 b8R Nc3 Nh3 g1N Be3 g2 Re4 Na2 Bf3 Kd5 e6 Ng6 e7 Nd4 e8N Ba6 c8R Qe2 Rcc1 f1B Nf2 Nh3 Rc2 g1B Bg2 Qf3 Rbc1 Be2 Rf1 Ra7 Ra8 Re7 Rac8 Bh2 Rb8 Bc7+ Ka7 Rh6 b6 Bg3+ b7 Bh4 Nh1 Be1 Ng3 Rh8 Qc3 Rg8 Nf5 Bb5 Nfd6 Ba6 Nb3 d2 Qd3 d1N Nd2 Ndc3 Rd8 Nb1 Rb2 Qh6 Rc2 Ng5 Rb2 Nh7 Rc2 Re5 b8B Qg5 Bc7 Re6 Ba5 Bb5 Bb4 Ba6 Ba3 Re5 Qc3 Beb5 Qd3 Re6 Nb3 Re5 Rcf2 Re6 Nd2 Re7+ Kb8 Rf8 Ka8 Rf4 Kb8 Rg4 Ka8 Rg3 Kb8 Re6 Ka7 Re7+
r1qq3R/1rr1N2K/3b1N2/3q2Qq/1b1RBnP1/1BRqk1bb/7B/1N2nB2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 c4 Ke6 f4 Kf5 a4 d5 g3 h5 c5 b5 g6 e5 c6 h4 g7 d3 Ke3 b3 a5 d4+ Kf2 e3+ Kf3 b2 a6 e2 a7 e1B c7 b4 Ne2 h3 Qb3 h2 Ra5 d2 Bg2 d1Q Ra4 d3 Bf1 e4+ Ke3 d2 Qd3 b3 Qa6 Nf6 g8N Nh5 Rc4 Nc6 Qa5+ Ne5 Qb6 Bd6 Nec3 Qg4 Qa5 d1Q Rd4 Qe8 Nf6 Rh7 Ncd5 Nd3 Qb5 Bd7 c8B Beb4 Ba6 Ne1 Ne7+ Ke6 Rg1 h1Q Qg5 Qgh3 f5+ Ke5 Rg2 Nf4 Bac4 Rf7 Rc2 Rg7 Na3 b1Q Rc3 b2 Bb3 Qbc2 Bd2 b1R Bc1 Rb2 Nb1 Qhh8 Bd2 Qc8 Bc1 Qhd8 Bd2 Qdh5 Bc1 Qhe8 g4 Bb5 Bd2 Be2 Bc1 Bf3 Bd2 Bg2 Bc1 Bh3 Bd2 Rb8 a8B Ra2 Bc6 Raa8 Bcd5 Rb7 Bc6 Ned3 Be1 Qd1 Bg3 Ne1 Bh2 Rf7 Kf2 e3+ Kg3 e2 Kh4 Qd3 Be4 Ra5 Qh6 Ra2 Kg5 Ra8 Qg6 Qg2 Kh6 Qgf3 Qg5 Qh1 Neg8 Rfc7 Ne7 Qhf3 Rdc4 Qd5 Rd4 Qd3 Kg7 Nc2 Kh7 e1B Ng8 Bg3 f6+ Ke6 f7 Ne1 Qh6+ Ke5 Nf6 Ne2 Qg6 Kf4 f8R Ke3 Rh8 Nf4 Qg5 Qh5+
2q1B2r/5rb1/2QRqnk1/1PN4r/1n2qR1R/q3r1qN/n1b5/1NBNK1B1 w - - 0 1 illegal: No possible last move
3b2nb/B2krb2/P2Nb1N1/1q3Bb1/3n1B2/1RK1RR1q/1NrN1r1Q/2r2q2 w - - 0 1 illegal: No possible last move
1q3r2/bR2BPq1/3B1R2/1K4rq/2rnn3/bbNNr3/Br2QR1N/kb4B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 a5 g4 d5 b4 h5 f5+ Ke5 b6 e3+ Kd3 a4 c5 a3 g5 a2 c6 h3 b5 e2 c7 e1R b7 h2 g6 h4 b6 h3 f6 Na6 b8B Rh5 g7 Bf5+ Kd2 d3 Kc3 d4+ Kc4 d2 b7 d3 f7 Re3 Kb5 Kd4 c8N e5 Ka4 e4 Bc7 Nc5+ Kb4 Rg5 b8B Ne7 Qg4 d1Q g8R d2 Qg2 Qh5 Bb6 d1B Nc3 Bb3 Rb1 a1Q Bc4 Ra2 Ba5 Rb2 Rg6 Qd6 Ba7 Qb8+ Rb6 Bg6 Ba6 Nf5 Kb5 Kd3 Qg3 Kc2 Nf3 Bh7 Rg1 h1R Rf1 h2 Qe5 Rhg1 Bd2 h1R Ne7 Rh4 Ned5 Rg8 Bb7 R1g5 Nf4 Bd6 Bb4 Rf8 Rf2 Be7 Rbf1 Rhg4 Nd1 Kb1 Nh2 Ng7 Qc3 Bd5 Nd3 Rf3 Rg2 e3 Nc1 e2 Rd6 e1B Rd7 Bf2 Bf4 Ra2 Qe5 Qb2 Bg3 Ka1 Qe2 Bb1 Nd3 Q2e5 Rc7 Rb2 Nc3 Rd4 Bb6 Ne4 Bc6 Be6+ Bd5 Bc5 Ba2 Bb3 Re7 Rc4 Rb7 Be7+ B6c5 Bd4 Bf2 Re3 Bg1 Qf6 Ba3 Qfh6 Rf6 Nf5 Rf2 Qg7 Bcb4 Ba7 Bc5 Bd8 Bab4 Bdb6 Be7 Bc5 Ba5 Bb4 Bc7 Ba3 Bcd6 Nd4+
Brr1qr2/kNRN3R/5qQ1/B6q/b4n1q/n2BKBb1/n2rR1P1/bN6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 Kd7 c4 Kc7 e4 Kb6 e5 h5 e6 a5 c5+ Ka7 e7 f5 e8B a4 c6 f3 c7 f4 Ne2 d3 Ng1 a3 Qe1 d4 Qe7 a2 Qe5 h3 Nc3 h4 Rh2 d2 Qe7 d1N+ Ke1 f2+ Ke2 d3+ Kf3 d2 Bd7 Na6 Qf6 Bd6 Rh1 h2 Bd3 h3 Nb1 Nc3 Ne2 d1R Bc6 Bd7 c8B Rb8 Nd4 Nc7 Nf5 Qe8 B8b7 Ne7 Qg6 Ned5 Ba8 Rd2 Bb2 Be5 Nd6 Rc8 Re1 h1Q Re2 h2 Nb7 Qd1 Bc1 h1Q Bb2 Qh4 b6+ Kb8 Ba3 N7b5 Bb2 Na3 b5 Na4 Ke4 f1Q Bc3 Rg8 Ba5 f3+ Qg4 Nf4 Qg6 f2 Ke3 Rh8 Bf3 Bc6 Nc3 Rf8 Rc1 a1B Nb1 Bd7 Rc7 Nc3 Nd8 Bc6 b7 Na2 Rh7 Ka7 b8R+ Bd7 Rb6 Rh8 Rc6 Rg8 Nb7 Rb8 Re1 Rf8 Rc7 Bc6 Bd5 Qdh5 Re2 Ne6 Rcd7 Rf4 Rh6 Rc4 Rhh7 Bg3 Nd6+ Rb7 Rde7 Bd7 Reg7 Rc8 b6+ Kb8 Re7 Ba4 Ref7 Qd1 Rfg7 f1R Rc7 Rf8 B5e4 Qf1 Bc6 Ra7 b7 Qff6 Bf3 Ra6 Bfe4 Rb6 Bf3 Ka7 b8N+ Rb7 Nd7 Q5g4 Rc5 Rbb8 Nb7 Qgh5 Rc7 Nf4+
Rb2B3/1NrbB3/nb3bN1/1bb2N1Q/2B1rR2/3PR2n/K2kB1n1/r1r2q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 g4 Kd7 b4 Kd6 e4 Ke5 b6 Kd4 e5 h5 b7 f5 e6 c5 b5 a5 e7 a4 e8B c3 g5 h3 b6 f3 g6 c4 g7 f4 Bd7 a3 Bb5 h2 Ba4 f2+ Ke2 c2 Bg2 f1R Bd7 c3 Bb5 h4 Ba6 a2 Bd3 h3 Bg6 Ra4 Be8 Rh7 Ba3 c1B Qb3 c2 Bb4 Nf6 g8B Bd7 Nc3 Na6 b8R Ng4 b7 Bc5 Be4 Ne3 Bd3 Ng2 Qf7 Qf6 Nd5 Ba3 Ne7 c1B Rc8 Bb6 b8N Rd1 Rb1 a1B Ng6 Rf1 Be7 Bac5 Rd8 B1a3 Rc8 Rc1 Rb3 Bd6 Bc4 Bac5 Nc6+ Ke4 Rb4 Bb8 Na5 Kd4 Nb7 f3+ Kf2 Rg7 Ne2+ Ke4+ Nd4 Qf5 Bb3 Kd3 Re1 h1R Bd1 h2 Qd5 Qh3 Qh5 Rf7 Rc4 Rb4 Re6 Rbb1 Re4 Re1 Rb4 Re3 Nf5 Bf6 Be2+ Kc2 Rf4 Rh7 Rb3 Re4+ Re3 Rg7 Bf1 Kd1 Bd3 h1N+ Kf1 Nf2 Bgc4 Qg4 Rd8 Nh3 Rc8 f2 Rd8 B8a7 Rb8 Qf3 Ra8 Ne1 Be2+ Kc2 Bb5 Bb8 Bec4 Qh1+ Ke2 Ng2 Ng3 Rg1 Nf5 Kc1 Kd3 Rd1 Nd4 f1B+ Kc3 Qg1 Be2 Qf2 Bbc4 Rf7 Bg4 Bd3 Be2 Qf1 Bd5 B3b5 d3 Ra1 Kb3 Kd2 Be6 Rab1+ Ka2 Rdc1 Nf5 Bc8 Bd8 Rc7 Be7 Bcd7 Bc4 Ra1+
B3N3/n1RRb1nK/1QNB1rRN/2rP1qb1/2b2B2/2nr1B2/n3r3/2n1k2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 g4 f5+ Kf3 Kd5 b4 Kd4 e4 c5 d3 h5 b6 a4 b5 a3 g5 a2 g6 c3 b7 c2 b6 h3 e5 c4 e6 c3 g7 h4 e7 h2 e8B h3 Bd2 c1N Bb5 c2 Bb4 Nc6 b8N Nh6 g8R Qd5+ Kf2 f3 Kg3 Ke3 Kh4 Kf2 Kh5 f4+ Kg6 Be7 b7 Be6 d4 Nf5 Bfc4 Rh5 Bd6 Na7 Bc5 Ng7 Nc6 Re8 b8B Rf5 Qd3 Ke1 Nd2 f2 Bcd6 f1N Qb3 f3 Ne2 f2 Kh7 Rf3 Bbc7 Rd3 Ne4 Bf7 Rb1 a1B Nf6 Qf3 Rb2 Na2 Bd5 c1N Rc2 Bc3 Qb4 Bd2 Ng3 Qf4 Be4 Bc4 d5 Rc8 Rg1 h1N Rd8 h2 Rd7 Qg4 Rc3 Bg5 Nf5 Qf3 Rg4 Nd2 Ne8 f1R Nh6 Nb1 Qa5 Rf2 Qb6 Re2 Rg3 Qh5 Bf3 Qf7 Rc2 Nbc3 Bf4 Qe6 Bcd6 Qg4 Ba6 Rc7 Bb7 Qf5+ Kh8 Rc8 Ba8 Rc7 Nd4 Rc5 Nc6 Nf2 Kg8 h1R Rg2 Rf1 Rg4 Bgf6 Rg6 Nh1 Kh7 Bg5 Rb2 Ne6 Rb4 Ng7 Ra4 Nab5 Raa7 Rff2 Rac7 Na7 Kh8 Re6 Kg8 Rfe2 Kh7 Rf6
rNq1K3/3nBQ1b/2rP3b/2rR2n1/Rn2NNB1/1Rr2n1B/b1N4n/2kn4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 g4 f5+ Kf3 Kd5 b4 Kd4 e4 c5 d3 h5 b6 a4 b5 a3 g5 a2 g6 c3 b7 c2 b6 h3 e5 c4 e6 c3 g7 h4 e7 h2 e8B h3 Bd2 c1R Bh5 c2 Bg6 Nh6 g8R Be6 Be1 Nf7 Bb4 Nd7 b8N Rh5 b7 Bh6 Bd2 Qc8 Rd8 Ng5+ Ke2 Bc4 Bb4 f3+ Kd2 f4 Na6 f2 b8N f3 Na3 Bg8 Bf5 Bh7 Rb1 a1N Be7 Qc6 Rb3 Qc8 Bg2 f1N+ Ke1 Ke3 d4+ Kf4 Kf2 Nd2 Bg4 Ke4 d5 Kd4 Kg3 f2 Kf4 f1N Rb6 Kc3 Nc5 Ndf3 Ra6 Kb2 Ra4 Nh4 Ne2 Nhf3 Rg1 h1B Ne4 h2 B2h3 Bg2 d6 h1N Qd5 Nf2 Qf7 N1h2 Rd1 Bh1 Rd5 Nd1 Qg6 Bg2 Kf5 Bf1 Nf4 Bc4 Rg8 Ba2 Rh8 Nb3 Rf8 Nbc5 Rf6 Nd3 Re6 N7c5 Kf6 Nb4 Qg8 Ra1 Ree5 c1R Qf7 Rc3 Nc2 Kc1 Rd3 Ra6 Red5 Rc6 Re3 Rc4 Rb3 Rc3 Bd8 Nd7+ Ke7 Ne6 Ke8 Rf5 Rd3 Rfc5 Rd5 Neg5 Ra7 Bb1 Ra8 Raa5 Ra6 Ba2 Ra8 Rab5 Raa3 Ra5 Ra4 Qb7 Bf6 Ra8 Be7 Qc8+
bq3n2/2Bn2n1/2nR2P1/Bq2NN2/r2n2qQ/k1KB4/1N1nR2b/3R1rBq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 a5 c4 f5 g4 h5 g5 h3 b6 f3 g6 f2 b7 f4 b5 Kc5 e5 Kb4 e6 d5 c5 h2 c6 f3 c7 h4 b6 d3 e7 a4 e8N a3 Qe1 h3 Ng7 d4 Nf5 a2 Ne7 Nc6 b8B Nf6 b7 Ra4 Ng8 Nd7 Nh6 Bd6 Qe5 Rf8 Bg2 f1N+ Kd1 f2 Nc3 d2 Kc2 d1N Nb1 Nde3+ Kd3 Nf5 Qe3 Nd2 Qe8 Ng7 Bf1 Ne6 Na3 Rf6 Nf5 Nef8 Be2 f1Q Nc4 Be5 Nb2 Ka3 Rb1 a1N Ba7 Nc2 b8B Bb7 c8R Ba8 Nf3 Bc7 Rg1 h1Q Qe4 h2 Ne5 Qhg2 Qf4 h1Q Qh4 Qg4 Rg2 Qe8 Rd8 Bd6 Nf3 Bh2 Ne5 Qff4 Bc7 Qfg5 Nh6 Rf1 Nf5 Q5h5 Bab6 Qh8 Ba5 Qg8 Rb8 Qd5 Rb6 Qb8 Bf3 Qc5 Re2 Qb4 Bd5 Qb5+ Bc4 Ne3 Nd6 Nf5 Kc2 d3+ Kc3 Nfd4 Nf5 N2b3 Be3 d2 Bg1 d1N+ Kd3 Ne3 Rd1 Nd2 Kc3 Rb4 Bd3 Ra4 Ne7 Nef5 Ra6 Ng3 Nf5 Nh5 Rb6 Ng7 Ra6 Ne7 Rd6 Nec6
3r3K/1b1PBq2/n3Rq1b/N1R2N2/1n3qkn/1RNq4/1NB2n2/1Qq1qBr1 w - - 0 1 illegal: No possible last move
q1k1N1N1/1qn1B1rN/1R2nnN1/3QBn2/4B1pR/1Pb1rR1r/4b3/n2K3q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 d5 e4 Kd7 c4 g5 h5 f5 c5 a5 b3 a4 e5 g3 h6 g2 h7 g4 b6 d3 b7 f3 Ra3 d4 Qd2 f2+ Kd1 f4 Qc3 f3 Qa5 d2 Be2 f1R+ Kc2 d1N Qd2 f2 Qe3 d3+ Kd2 Re1 Bf3 f1Q Nc3 Nf6 Ne4 Bg7 Rh4 Ra7 Nh3 g1N Qg5 Na6 b8B Ne3 Ra2 Qb6 Ba3 Qb7 c6+ Kd8 e6 Nf5 Bf8 a3 Be5 Re3 Ra1 Qg2+ Kd1 Bd7 c7+ Kc8 e7 d2 e8N a2 Be7 Bb5 Nf4 Qh1 Ng6 Bf1 Qh5 Nh3 Ng5 Nf4 Be4 Qg2 Rh3 Qa8 Rf3 Ne6 Rc1 a1N Rc6 Kd7 c8N Nac7 Rb6 Qh1 Ncd6 Rb7 Ndf7 Kc8 Nh6 Qg2 Ng8 Ra7 Rf2 Qh1 Bd3 Qhb7 Rf3 Bf8 Ba3 Bb4 Be4 Bc3 Be7 Ra6 Nh6 Rg8 h8R Rg7 Ng8 Ra5 Rd6 Rd5 Nh7 Rdd3 Rf2 Rh3 Rf3 Re3 Rb6 Rh2 Nhf8 Nfd4 B5d6 Bg2 Qd5 Rh3 Rh4 Nf5 Nh7 Rd3 Ke2 d1Q+ Kf2 Qh1 Bg3 Bf1 Be5 Rd2+ Ke1 Re2+ Kd1 Re3 Bb1 Qc6 Bd3 Qcb7 Be4 Be2#
k1rN1KB1/q3Rr2/1r1RR2Q/N3B1bn/N1BBpbb1/1b6/4bn1P/3q2q1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 g5 f4 d5 c4 Kd7 b4 Kc7 c5 Kb7 b6 e5 f5 a5 b5 a4 f6 g3 f7 g2 Qb3 e3+ Kd3 g4 Qb2 g3 Qe2 a3 Bb2 a2 Qh5 e2 Qh6 e1R Nh3 g1B Nc3 g2 Rd1 a1Q Na4 Be7 f8R Na6 Rf6 Ra7 c6+ Ka8 c7 Bg4 c8B Be3 Re6 g1Q Ng5 Bf4 Nf7 Nf6 Bc3 Qd6 Nd8 Nh5 Bb2 Beg5 b7+ Kb8 Rd2 Rb1 Re7 Rg8 Be6 Rf8 Bg8 Nc5+ Kc2 d3+ Kc3 d4+ Kc4 Qa6 Kd5 Ne4 Be2 Qd1 Re1 Nf2 Re6 Qa5 Kd6 Rf7 Bc3 Ra8 Bf1 Ka7 b8N Rb4 Re4 Rb2 Be2 Qg1 Rd1 d2 Bc4 d3 Bd4+ Qb6+ Ndc6+ Kb7 Ree1 Qa7 b6 Rf6 Ke7 Rf7+ Ke8 Qc1 Rf1 e4 Nd8+ Kc8 b7+ Kc7 Nc3 Rb6 Nbc6 Rc8 Na5 Kb8 Na4 Qa1 Rb1 Be2 Rfd1 Bg4 Rb5 Qb1 Rd5 Qb3 Rb1 d1B Rdd6 d2 Rc1 Bde2 Rf1 Rg7 Kf8 d1B Re7 Rh7 Rde6 Bc2 Rd1 Qb1 Rd2 Qbd1 Rd3 Bb3 Rd2 Qa6 Rd3 Ka7 b8B+ Ka8 Bbe5 Qb7 Ba1 Rg7 Rdd6 Qa7 Bad4 Rf7+
7r/2B1bR2/1n3r1Q/kB1Nqbb1/3P1n1b/1Kq1rRbN/1p3N2/1N2qBR1 w - - 0 1 illegal: No possible last move, all moves rejected
nkb3n1/nN1Q1Rn1/1n3R2/rBN4P/3qRqb1/2B5/prNN2Bb/r1K5 w - - 0 1 illegal: No possible last move
1RRq4/4B3/1nP2q2/1N3pq1/1bB4n/B1rbn1Rb/2QKqkN1/2N2Bqr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Kc5 g5 d5 g6 h5 b6 a5 e5 h3 b3 h2 g7 d3 e6 Kd4 e7 f3 e8N f2+ Kd2 h4 b4 h3 c5 a4 c6 a3 b5 a2 b7 Bb4+ Nc3 Ra3 b6 Nd7 b8R Nh6 g8B Nf5 b7 Nb6 Nd6 Nh4 Rb1 a1Q Be2 f1B Ke1 d2+ Kf2 f5 Na4 Rc3 Qc2 d1N+ Ke1 Ne3 Kd2 Rh6 Ra8 Rh8 b8B Ba6 Rb2 Bd3 Nb5+ Ke4 Rb1 d4 Nf3 Qb2 Rg1 h1Q Rg5 h2 Rg3 Qg1 Ne1 h1Q Bc4 Bh3 Bd6 Qhg2 Be7 Qa1 Nb2 Kf4 Rg7 Qg5 Rc8 Kg3 Bf1 Kf2 Ng2 Rh6 Na4 Rh5 Nc5 Qb2 Bd6 Qdf6 Nb3 Qa2 Be7 Qa8 Rf8 Qd8 Ba3 Qg3 Rff7 Bd6 Na5 Ng6 Bc5 Bg4 Na7 Na8 Bf8 Bde2 Rc7 d3 Rc8 Rh1 Rbb8 Nh4 Nb3 Nb6 Nc1 Bh3 Ba3 Bb4 Be7 Qf4 Rg3 Q4h6 Na2 Qhg5 Kc1 d2+ Kb1 Qdf8 Nb5 d1Q+ Kb2 Qd3 Kc1 Q8h8 Be6 Qc4 Kd2 Qd8+ Bd5 Qcg4 Nc1 Bd3 Bc4 Qe2+
1R3bnN/Rq3rB1/rPb4R/1B1q4/1Kp1nnn1/3NQ3/1n1N3b/B2kq2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Ke7 d4 Kd6 Kd2 c5 Kc3 a5 b4 h5 g4 f5 e5+ Kd5 e6 Ke4 d5 f3 d6 f4 e7 h3 e8N h2 g5 f2 b6 a4 g6 h4 d7 a3 b5 a2 b7 f3 g7 h3 b6 Ra6 Be2 f1Q Nd2+ Ke3 Bd3 f2 Be4 Qe1 Ba3 f1N Bc1 Nc6 b8R Bb7 Bg2 Na5 Rc8 Bc6 Rc7 Rh7 Bb2 Ng3 Qb3 Ne4+ Kc2+ c3 Ne2 Nc4 Nc1 Qg5 d8B Qd5 Nd3 Ke2 Rd1 a1B Rf7 Ne5 Be7 c4 Bf6 Ng6 Nd6 Nf4 Re7 Rh8 Ra7 Rh7 Rg1 h1N Nf7 h2 Nh8 Nhf2 Rh1 Ng4 Be5 N8f6 g8R Rf7 Rg6 Ng8 Rh6 Nc5 Bg7 Ne4 Rg1 h1Q Qa3 Qhh4 Rh1 Qe7 Bh3 Qb7 Qc5 Ne5 Bd7 Ng4 R1h5 Qh4 Rh1 Qe1 Re5 Rf5 Re8 Rf7 Bc1 Bb2 Rb8 Ba3 Qe7 Bd6 Bb2 Be5 Ba1 Bc7 Qa3 Be5 Qc1 Bed6 Kb1 c2+ Kb2 Bc7 Nf1 Bcd6 Qe3+ Kd1 Nd2 c1N Be8 Nb3 Bd7 Nbc5 Be8 Na4+ Ka2 Nec5 Ka3 Nb2+ Kb4 Ne4+ Nc5 Bd7 Bf6 Ng6 Bd4 Bh2 Bg7 Bf5 Bb5 Bd7 Bc3 Nf4 Bg7 Ne7 Nd3 Bc6 Re6 Ng8+ Rd6 Nc5 Rh6 Ne4+
qn1Q4/1b2PR2/R1r1r2b/1KN5/2NqB1n1/2nb1rnk/1RN1p2N/1B1n2B1 w - - 0 1 illegal: No proof kernel
2N3N1/BR2pk2/Rn3BNb/6P1/n4q1r/2rb1qRq/nNB3n1/b1n1Q2K w - - 0 1 illegal: No possible last move, all moves rejected
1q2N1B1/2pbqrN1/5N1b/4B1q1/r3q3/1RqB1P2/K2RnQrR/2kn1bB1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kd7 Kd2 Ke6 Kc3 Kd5 b4 h5 Kb2 e5 g4 a5 b6 h3 b7 c3+ Kb3 h4 b5 e3 g5 Ke4 d5 e2 d6 e1R g6 a4+ Ka3 h2 b6 c2 g7 h3 Bb2 c1Q Be2 Rf1 Qe1 Nc6 b8N Nh6 g8B Ng4 b7 Nd4 Na6 Qcg5 b8B Ne3 Bc3 Nd1 Bh5+ Kd3 Ba7 Kc2 Be2 e4 Nd2 e3 Nc5 Qe8 Bec4 e2 d7 Ba6 Ne4 Qb8 d8R Rh7 Bce6 Rf7 Bc4 Bh6 Nf3 Rg1 Nd7 Rg4 Qg1 e1Q Nd6 Qee7 Nh4 Bc8 Qe1 Ne2 Rb1 Rg1 Rb5 Kc1 Rb3 Rg4 Nf6 Be6 Rf1 h1B Nf5 h2 Ng7 Bg2 Rh1 Bf1 Be5 Bc8 Bc5 Ra7 Nde8 Ra8 Rd4 Bd7 Rd2 Ra5 Rg1 h1Q Bd3 Qe4 f3 Rg2 Rh1 Ra8 Rh2 Ra6 Ka2 Ra7 Bg1 a3 Qf2 Ra5 Rb5 Ra4 Kb3 a2 Rb6 a1Q Rb7 Rd4 Rb5 Qc3+ Ka2 Rc4 Rb3 Ra4+
nr1nn2k/5Ppn/1NN3nR/rB2n1BK/1Q2R2N/r2N4/2BbR3/1n2q2b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 h4 d5 f4 e5 b4 a5 c4 g3 b6 a4 c5 a3 f5 e3 Kf3 e4+ Kg4 g2 h5 d3 b5 a2 h6 d4 c6 d2 c7 d3 h7 e2 b7 e1N b6 e3 Rh4 e2 Kh5 Ra5 Rc4 Nf3 Nh3 g1N Qe1 d1N Rc6 d2 Qh4 e1N Rg6 Qe8 Rd6 Nc6 b8N Bb7 c8B Ne2 Nf4 Nfe5 f6 Ndc3 Bfh3 d1N Bcf5 Ne3 Bc2 N1f3 Rd2 Nd8 Bf1 Ned5 Nc6 Nc7 Nd3 Na8 Qb4 Ng5 Na3 Qe7 Nc4 Nb1 Nd4 Bd5 b7 Bh1 b8N Ra3 Nb6 Nf4+ Kh4 Nfg6+ Kh5 Qe8 Re2 Bc5 Nf5 Be3 Nc6 Bd2 Nh4 Qe7 Qb2 Qb4 Rg2 Qe4 Qb4 Qe1 Rf2 Nc3 Rb1 a1R Re2 R1a2 Rb2 Nb1 Re4 Ra5 Be2 R2a3 Bf1 Nge6 Be2 Nec7 Bf1 Ne8 Ra2 Bc3 Bg5 Bd2 Be2 N8e7 Rb2 Nf8 Bf1 Rg8 h8R N7g6 Rh6 Nh7 Ra2 Rf8 Be2 Kg8 f7+ Kh8 Nc1 Ne6 Ba6 Nd6 Ba4 Rb8 B6b5 Be3 Re2 Ne8 Bc2 Nd8 Nd3 Bd2
4qq2/3rB1Rn/3RNNK1/3BQr2/1r1b2Bk/qP1R1b1p/1rN3n1/b1n3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 c4 d5+ Ke5 f5 g4 a5 e4 h5 b6 d3 c5 d2 b7 f3 b3 h3 c6 h2 c7 a4 Qe1 d4 Bh3 d3 Qd1 f4 Ra2 a3 Bb2 h4 Bc3 f2 Ba1 f1Q Qc1 d1R Qb2 f3 Ne2 d2 Bg2 h3 Nf4 f2 Ne6+ Kh4 Kf5 Nf6 g5 Qe8 e5 Nh7 g6 Na6 b8B Bb7 c8B Bc5 g7 Bf3 g8R Bd4 Ba7 Nc5 Rg7 Nd3 Bc5 Nc1 Be7+ Kh5 Rg1 h1Q Qc3 Rg8 Rc2 a2 Na3 Ra5 Qe3 Re1 Rc6 d1R Nc2 Re2 Rd6 Rh8 Bc3 a1B Bb4 Ra4 Bc5 Rb4 Qf4 Qh2 Bh1 Red2 R1g3 Qa6 Qe4 f1N Qe3 Qa3 Bg2 Be2 Bd5 Qf2+ Qf4 Rg8 Rd3 Bf3 Qe3 Nf6 Qe1 Rf8 Bd7 Kh4 Bb6 Qea8 Kg6 Ne3 Ba7 Ng2 Bc8 Bdb2 Qe2 Qe1 Bg1 Bd4 Nc7 Qf2 e6 Bac3 Bd8 Qc6 e7 Re1 e8N Bg4 Bf5 Bb6 Be7 Na2 Rg3 Rb1 Bde6 Nc1 Be4 Ba1 Rd8 Rb2 Qe1 Rd6 B4d5 Bd4 Qe5 Qf4 Rd3 Bf3 Bg4 Rf7 Bf8 Nh7+ Ne6 Qb5 Rc8 Qb8 Rc6 Rdd7 Bc5 Rfe7 Bd6 Qf8 Ra6 Rf7 Be7+ Ng5 Rd6 Rf5 Nf6 Nh7 Nc5 Qbd8 Ne6 Qde8+
K2rb2n/5k2/4RBR1/N5b1/2P4n/2q1RrB1/1pBNqqn1/2qQBNrb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 h5 Kd3 b5 Ke4 e5 Kd5 d3 g4 h3 c4 b3 a4 b2 f4 h4 g5 e4 g6 d2 f6 b4 f5 h2 a5 b3 a6 e3 a7 h3 g7 e2 Nc3 b1Q Ne4 e1N Ra5 b2 Ne2 Qb6 Ra6 Qc2 Rg1 h1R Rg4 h2 N2g3 Nc6 Bd3 Ne5 Nf1 Qf2 Rg6 N5f3 Re6+ Ne7+ Kd6 Rh3 Kc7 d5 g8N Rb8 a8R d4 Ra3 Qc3 Bc2 Bh6 f7+ Kf8 Rb3 Bd7 Ra3 Rc8+ Kb7 Rg1 Rb3 h1B Ka7 Rc6 Ka8 d3 Ra3 Rd6 Rb3 Nd5 Ne7 Bg5 Nc6 Ne7 Na5 Nh4 Qg4 d1Q Bd2 Qc1 Rh6 Kg7 f8B+ Kg8 f6 Be8 Bg7 Neg2 Be1 d2 Ra3 d1Q Ned2 Qb4 Rae3 Neg6 Qe2 Nh8 Rg6 Qc3 f7+ Kh7 f8B Kg8 Bf6+ Kf7 B8e7 Rd3 Bd6 Rf3 Bg3 Rd5 Ndb3 Qdd3 Qd1 Qde2 Nbd2 Rd8+
2RB1Q1n/7N/bqrB1R2/kn2bN1n/2pRB1r1/1b2qB1P/4n2N/1Kr4q w - - 0 1 illegal: No possible last move, all moves rejected
1q1N1Q1q/kBrb1R1K/1q1r1Rp1/2n1n2b/1bqPNn2/BR3B2/5N1B/7r w - - 0 1 illegal: No possible last move
n1b2qk1/1K6/B1N1np2/b3nBBB/2nQ1Nb1/3q3r/1P2Nr2/1Rr1q1RR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 a5 c4 h5 g4 a4 e4 h3 c5 h2 e5 f3 b6 f2 g5 a3 e6 a2 e7 h4 c6 h3 c7 Nh6 g6 Na6 b7 Ng4 b8R Bd7 c8B Nc7 g7 Ne5+ Ke2 d3+ Ke3 d2 g8N d4+ Ke4 d3 Qh5 d1N Nc3 d2 Bfa6 f1Q Kd4 Ne3 Kc5 d1B Kb6 N3c4+ Kb7 Qd3 Qh6 B1g4 Rb1 a1N Na2 Nc2 Qg7 Nd4 Qg5 Nde6 Ra1 f6 Bd2 Kf7 Ne2 Rh7 Rhb1 h1R Qh4 h2 Nac3 Rf1 Nf4 Rf2 e8B+ Kg7 Nce2 Bb4 Rg1 Ba5 Ne7 h1Q+ Nc6 Kg8 Bh5 Qf8 Rab1 Rh6 Nh3 Qhe4 Bg5 Qee3 Nhf4 Qc1 Qh1 Qe1 Qe4 Rh8 Qd4 Rh7 Bg6 Rh3 Bh5 Bd2 Bb5 Ra1 Ba6 Ba5 Rh1 Ra3 Rg1 Rc3 Ra8 Rc1 Rb8 Be8 Bd7 Na8 Rc8 Nec7 Bf5 Bd7 Re8 Ne6 Re7 Rg3 Rh7 Re3 Bhg6 Ref3 Rhh1 Rh3 Bh5 Bc8+
RnR5/1K3bN1/P2r1BBr/q1Nk1b1B/5QNb/1rrnR1q1/p3q1R1/4n3 w - - 0 1 illegal: No proof kernel
r3BR2/2rRP1nb/6B1/1b3N1q/p1qB4/1bQKR3/2n1N1Nn/b2kq1rB w - - 0 1 illegal: No possible last move, all moves rejected
3RNBbB/7k/nR5r/2q2R2/1b1rn2b/1QN2P2/N1rn1pr1/KB1rr1R1 w - - 0 1 illegal: No proof kernel
2b3nK/PBB3q1/4p1Q1/1Rnn4/b1B1n3/bNB4r/1Rnr1k1N/2R1Nrn1 w - - 0 1 illegal: No possible last move
N1k1KB1q/4nR2/rb3nB1/b2n3B/1r1r2N1/bR5B/3RPbrp/1N1b2Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 Kf5 c5 g4 f3 d4 a3 b4 c3 b5 a4 b6 c4 g6 a2 d5 f2 g7 a3 b7 h4 d6 c2 g5 c3 g6 h3 Bg5 c1R Qd4 h2 Qe5 c2 Qb2 Rd1 Nc3 c1B Qc2 Nf6 g8B Bd2 g7 Rh4 Be3 Nc6 b8R Ra6 Rb3 Rb4 Bh3 f1R+ Nf3 Rg1 Bh7 Rg2 g8B Be1 Bf4 Rdd4 Qc1 Bf2 Bg6 Qe8 Rab1 a1B Rd1 a2 Rd2 Ne7+ Ke5+ Kd8 Bh6 Be6 Qg1 Kc8 Rf1 Qd8 Nb1 Bc3 B8h7 a1B Bh5 Bab2 B7g6 Ba3 Bg5 Bg7 Bh6 Qh8 d7+ Kb8 d8N Kc8 Bf4 Bh6 Bg3 Bhe3 Bh4 Bf5 Ne6 Bc2 Bg5 Bd1 Bh6 Rb8 Bg7 Ba5 Bf8 Rbb4 Nc7+ Rdg4 Nh4 Beb6 Nf5 Rgd4 Na8 Ne8+ Ng7+ f5 Ke6 f4 Nf5 f3 Ne3 Nf6 Ng4 Bh4 Kf7 f2 Re1 f1N Bf5+ Rd7 Bfg6 Ne3 Rf1 Rdd4 Rf4 Bf2 Rf3 Nd7 Ke8 N3d5 Rf7 N7f6+
BB1QR3/1KB3bN/2n1b3/1N1pn3/1knnb2b/r3B1r1/RN3RP1/3rqb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 h5 b3 f5+ Ke5 d5 e4 a5 b6 h3 b7 f3 Na3 f4 Bd3 h4 Be2 h2 Qe1 h3 Qh4 a4 Bd1 f2 Nb5 f1N Be3 a3 Bh5 f3 Qf6 a2 Be8 f2 Nf3 Be7 Bc6 Ra3 Ng5 Qa5 Nh7 Kb4 c5 Nd2 Rhf1 h1R Qf8 d3 Qd8 Bf6+ Kd6 h2 e5 Nh6 e6 Rg8 e7 Bh4 e8R Bd7 Rfd1 Ng4 Rf1 Qa4 Kc7 Be6 Kb6 Ne5 Kc7 Rg3 Kb6 Na6 b8B Qa5+ Kb7 Ndc4 Bc7 d2 Nd6 Kc3 b4 d1B b5 Kb4 b6 Nb8 Nb5 Be2 Rfe1 Bd3 Re2 f1B Rf2 Nf3 Rd1 a1B Rdd2 Baf6 Ra2 Nd4 Bcf4 Bf7 Kc7 Be6 Rae2 Kb3 Ba8 Be4 c6 Bg7 Ra2 Be2 Be5 Qd2 b7 Rd1 B5f4 Bf1 Be5 Nd7 b8B Qa5+ Kc8 Qe1 c7 Nc6 Kb7 Ka4 c8N Kb4 Bec7 Nde5 Nbd6 h1N Nb5 Rg6 Nb6 Ng3 Na4 Nf5 Nb2 Nfd4 Nf8 Rg4 Nh7 Rg3
k3qr1N/6Bq/1bN3RR/1nPB1qQ1/3bq1nN/r2b3p/2B4q/2BKq1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 g4 a5 e4 h5 b4 d5 c4 Kd7 g5 Kc7 e5 Kb7 g6 f5 b6 f3 g7 f2+ Ke2 a4 e6 h3 b5 h4 e7 d3+ Kd2 f4 e8B f3 Bb2 d4 Bc3 h2 Ra3 h3 Qe1 Bc5 Ra1 a3 Ne2 a2 Nc1 Nc6 Qe5 Na7 Bg6 Qe8 Bg2 f1Q Rg1 h1Q Qg5 Nh6 g8R Qf2+ Ne2 Bf5 Kd1 d2 Nf4 Bd3 Bh7 Qg3 Ng6 Ng4 Bb2 Qf4 Bc1 Qhh2 Rg7+ Kb8 b7 f2 Bd5 Bb6 c5 Rf8 Nh8 Qfe5 Rg6 Qe4 Re1 f1Q Rh6 Qf6 Rg1 Qff5 Rg6 Kc7 b8N Kc8 Nc6 Kc7 Na3 Kb7 Rb1 a1B Nc4 Ba5 b6 Nb5 Rh6 Ra7 Rb3 Ka8 Ne3 Bf1 Bhg8 Qhh1 Qe7 Qb1 Bde6 Qfg6 Nf5 Qbe4 Rbg3 Qh2 Bb2 Qe5 Bh7 Nf6 Kc2 d3+ Kb1 Qd4 Rg5 Ng4 Bd5 Qgf6 Qe3 d1Q+ Qc1 d2 Nh4 Qde5 Bc2 Qde1 Bd4 Qg7 Rgg6 Q1e4 Bb2 d1Q Ba3 Qde2 Qg5 Qh7 Kc1 Q2e3+ Kd1 Q5f5 Bc1 Bd3 Ne7+ Kb8 b7 Bb6 Nc6+ Kc7 b8B+ Kb7 Bd6 Ra3 Bg3 Ka8 Be5 Bd4 Bg7 Qe1+
2N2BB1/2nn3b/R2Nb3/2p4k/rRBQ3n/1P1r1rK1/r2r3N/1qNRn1b1 w - - 0 1 illegal: No possible last move, all moves rejected
5R2/q2nnB1K/R6R/PNbn3n/q1N2k2/B2r1np1/NNb2B2/1n1Q1rr1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Ke5 e4 b5 d3 c5 a5 g5 h5 f5 h6 b3 d6 g3+ Kf3 b4 h7 c4 d7 g2 Be2 c3 Nh3 b2 Na3 b1N Nb5 b3 Ba3 b2 Nf2 c2 Rh6 c1Q Ra6 Qdc7 d8R Bc5 Rf8 Ne7 Bf1 Rg8 h8B+ Rg7 Be2 Qc4 Ra2 Qb6 d4+ Ke6 e5 Nd7 Ra1 Nc3 Nd3 b1N Nb2 Qa4 Bc4+ Ncd5 Bb3 Nc3 Rc1 Nb1 Rc2 Rb8 Re2 Rb7 Re1 Rb8 Rh1 Rg6 Rh6 g1N+ Kg2 f3+ Kg3 f4+ Kg4 f2 Kh5 f1R Bf6 Kf5 e6 g4 Bh4+ Rf6 Bf2 f3 Ba2 Kf4 Bb3 Nf5 e7 Qa7 e8N Rg6 Ned6 Bb7 Ndc4 Rd8 Bh4 f2 Ba2 Ne3 d5 Nf3 d6 Be4 Bb3 Bc2 Ba2 Nde5 d7 Nd5 Bb3 Rh1 Ba2 f1N Bb3 Rg1 Bf2 Rf6 Ba2 Nfe7 Bb3 Ra8 d8N Nd7 Nc6 Rd8 Nb4 Rf7 Na2 Rf6 Rg6 Ng3+ Kh6 Nh5 Kh7 g3 Ne5 Ndc3 Bf7 Ncd5 Nec4 Rb8 Nc7 Rb3 Nb5 Rd3 Rh6 Re6 Rg6 Ree1 Rh6 Ref1
n2n2nB/2bRnr2/BqN3P1/N1rN3K/2bR1q1q/4Q2n/R1B1p1k1/3n2B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Kg6 g4 d5 b4 e5 c4 h5 g5 Kf5 c5 Kg4 f5 Kg3 f6 a5 b6 e3 b7 d3+ Ke1 d2+ Ke2 d4 c6 e4 f7 h3 g6 a4 c7 a3 b5 h4 b6 a2 Ba3 h2 Bb4 h3 Ba3 Nc6 b8B Ra5 b7 Bd6 f8N Rh7 Bb2 Rc5 Bc1 Be6 c8B Rf7 Nc3 Qb6 Rb1 a1Q Nf3 Nd8 Rb4 Qa4 Bb2 Bc7 Qb3 d1N Ne5 Bd5 Ba1 Nb2 Ba7 Nc4 b8R Be6 Ra8 d3+ Ke1 d2+ Ke2 d1N Ba6 Bd5 Nfd7 Be6 Nc6 Bd5 Ke1 e2 Ndb8 Kf3 Rg1 h1N Na5 h2 Nbc6 Ng3 Bh3 h1N Bf5 Be6 Qa3 Nhf2 Nd5+ Nde3 Rh1 Nh3 Bh8 Kg2 Qb3 Nd1 Qe3 Qb8 Rf1 Nb6 Rd4 Qb3 Rf4 Qb2 Rd2 Qe5 Rh4 Qf4 Ra2 Qb7 Rc8 Na8 Rh7 Rf6 Rd7 Rf7 Rb8 Qb2 Rb4 Qb3 Rd4 Qb6 Nf6 Bb3 Nd5 Bc4 Rd3 Qb8 Qd4 Rb5 Bc5 Qb6 Bc8 Qf3 Kd2 Qf2 Ba6 e1Q+ Kc1 e3 Rdd2 e2 Bc2 Qb8 Qc3 Qf4 Bg1 Qf5 Rd4 Qef2 Kd2 Rc5 Qa3 Qb6 Qc3 Nb2 Qb3 Qe1+ Ke3 Qf6 Qa3 Nf5+ Ke4 Nd1 Qe3 Kh1 Kf3 Nfe7+ Kg4 Qf4+ Kh5 Kg2 Rd6 Qef2 Rd7 Q2h4#
BB1Q4/1q2r3/1r2P2k/nb1pq3/bK1bR1q1/NN1R3q/1N4q1/1qnBR1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 Kg7 c4 h5 c5 a5 e5 d3 Kc3 h3 c6 a4 g5 f3 g6 h2 b6 f4 e6 f2 b5 h4 b7 d2 c7 a3 b6 h3 Ba6 f1Q Qe2 d1Q Nf3 a2 Bc4 Kh6 g7 Na6 b8N Ra7 b7 Nb4 Bb5 Ne7 g8R Qg2 Bc4 Nd3 Rg3 Nc6 Ne5 Qd7 Qe4 Qg4 Bb3 Bc5 Na6 Na5 Re1 h1Q b8B h2 Be3 Nc1 Bd1 Bd4+ Kb4 Qe7+ Nc5 Bd7 c8B Ba4 Bf2 f3 Bg1 f2 Bb7 f1B Na3 Bfb5 Ba8 Qb7 Nec4 Rh7 Ree3 Re7 Nb2 Ra6 Nb3 Rb6 Re2 Q2h3 Rd3 Q1g2 Qe5 h1Q Re4 Q1h2 Qd6 Qe5 Rb1 a1Q Qd8 Qa2 Bc2 Ne2 Re1 Nc1 Bd1 Qb1
Kb4Q1/N2RN1qr/3qp1q1/4B1R1/1rnbq2B/4Bn2/q3P1Nq/3rRB1k w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Qd4 Qb3 Qd5 Qd1 Qd8 a4 Kd7 d4 Ke6 Kd2 h5 Ke3 c5 Ke4 b5 f4 c3 g5 h4 g6 h3 a5 c4 a6 c2 g7 h2 a7 c3 Qe1 b3 Nf3 g1Q Qd2 b2 Qd3 b4 Qd1 b3 Qd3 g2 Qb5 Nf6+ Kd3 Nc6 Kc4 Ne8 Kc5 Kf5 g8N Kg4 f5 Kh3 f6 e6+ Ne7 Nd6 f7 Nc4 Qb8 Rh7 Bd2 c1R Na3 b1Q Nb5 c2 Ne1 b2 Be3 Rd1 d5 c1Q d6 Nd4 d7 Qc3 Ra5 Nf3 Kc6 Qg7 Kb7 Qbg6 Qc8 b1Q Qb8 Qe8 d8B Qd7+ Bc7 Qd2 Be5 Qd6 Qd8 Rc8 a8R Qa2 Na7 Rc5 Rb8 Rb5+ Ka8 Rb4 Rb7 Qf2 Rg1 h1Q Rd7 Qfg3 Qc8 Kh2 Rd5 Qe4 Qb8 Qgg6 Qd8 Bh6 f8B Bf4 Bh6 Qg7 Qg8 Q3g6 Bg5 Qc5 Bc3 Bb8 Bh4 Qd6 Be5+ Kh3 Qf7 Qh2 Rh1 Kg4 Qg8 g1B Ng2 Kh3 Beg5 Bc5 Be3 Bd4 Bef6 Qeg4 Rg5 Qgf4 Rg1 Qhg3 Be5 Qff5 Nf4+ Kh2 Bh3 Qfg4 Re1 Qg1 Bf1 Kh1 Ng2 Qh2 Qd8 Q4f5 Qg8 Qe4+
4BK1n/Q4R2/P1p2NNR/rR2rnn1/1B1b3B/Rn3N2/2knb1bb/1r2q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 e4 Ke5 h4 Kd4 h5 b5 d6 g5 a5 f5 e5 b3 h6 c6 d7 b4 d3 b2 h7 f3 Kg3 b3 e6 f2 e7 f4+ Kh2 g3+ Kh3 f3 Kg4 g2 Kf5 g4 Kg6 g3 Kf7 Qe8+ Ke6 Ba6 d8B Bg7 Qc2 Nh6 Nd2 b1R Ba3 b2 Bb4 Nf5 Rh6 Nd7 Ra3 Ne5 Ne4 Nf7 Be2 f1B Qa4 f2 Bh5 Be2 Bg6 f1N Nf6 Nd2 Nf3+ Ke3 d4+ Nb3 d5 Kd3 d6 g1N d7 g2 Bh5 Kc2 Bg6 Rg8 h8N Nh3 Bh5 g1B Ng6 Bab5 a6 Nh8 Qa5 Bf1 Qb6 Bh2 Qb8 Bbe2 Qa7 Ng3 Kd6 Bg2 Ke6 Ng5+ Kd6 Qf7 e8R Qc4 Ke7 Qh4 Rf8 Nf5+ Ke8 Qe1 Ngh4 Rc8 Ng6 Rc7 Bde7 Rb7 d8R Rb5 Rd5 Ra5 Bd8 Qh1 Rb5 Qe1 Nh7 Bc3 Nf6 Bd4 Bde7 Rg7 Bd8 Rc7 Rf7 Re7+ Kf8 Re4 Bc7 Re3 Bg3 Re5 Bf2 Rd1 Bg3 b1N Bh4 N1d2 Bg4 Nd6 Bd7 Nf5 Be8 Rb1
q2B2k1/R1r1q1P1/2BB4/1QNq2p1/B3q2r/1qb2K1b/n2N1Rr1/n4qRN w - - 0 1 illegal: No possible last move, all moves rejected
3R1N1b/6p1/1R1rbP2/2B1nBR1/3bQ1qn/KBrb1rnb/1N3Nn1/5k1B w - - 0 1 illegal: Other
1K4Bq/N3pqbP/5r2/1bq1RRq1/r2n2kr/Rq1N3R/1BQN4/q3Bn2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 h4 Kg6 f4 Kf5 b4 a5 c4 g5 h5 d5 c5 e3 Kd3 e2 c6 e1Q c7 a4 b6 g3 b5 a3 b7 g4 h6 g2 b6 a2 Nh3 g1Q Qf3 g3 Qf2 g2 Nd2 Nc6 b8R Bd7 c8N Bg7 b7 Ra4 Bb2 Qe6 Na7 Kg4 f5 Qf7 Nf4 Nf6 Rh3 Ne4 f6 Ng3 h7 Rf8 Re1 a1Q Ra8 Qde8 b8B Qc8 Kc2 d3+ Kc3 Nd4+ Bc7 Qce8 Ba5 Bb5 Re5 Qd8 Ne4 d2 Nd3 d1R Qc2 Qf2 Nd2 g1Q Bg2 Nf1 Bb4 Qg6 f7 Qg5 Be4 Re1 Bh1 Re4 Bg2 Rg8 f8R Qf7 Ba5 Rf4 Bh1 Rf6 Bg2 Ra3+ Kb4 Ra4+ Kc5 Qb8 Re6 Qc8+ Kb6 Qc5+ Kb7 Q1e3 Ne1 Qec3 Kb8 Qb3 Nd3 Qbc3 Rc8 Rf8 Re1 Rh6 Re6 Rh4 Re5 Qfh5 Ne4 Nf3 Ne1 Bh8 Re6 Ra2 Nc6 Qcg7 Rd8 Rf6 Ra6 Qf8 Na7 Bg7 Bd2 Qh8 Rf8 Rf5 Re5 d4 Qc4 d3 Qc2 Nd4 Bb4 Ra3 Ra4 Rc3 Ra3 Rc4 Ba5 Ra4 Bf3+ Kf4 Bg4 Rf7 Be6 Qhg6 Bc4 Kg4 Bac3 Rf3 Bg8 Q6h5 Rf6 Qf7 Bd2 Qaa2 Bdc3 d2 Nd3 Qab3 Bb4 d1Q Be1 Qa1 Nd2 Re3 Rff3 Re4 Rf2 Rf4 Rff3 Rf6 Rf2 Qgg6 Rff5 Qg5
R2b1kBK/1Pr1N1RQ/7b/n1n4r/1B2B3/NN1b1qrR/1p6/b1Rnn2b w - - 0 1 illegal: No proof kernel
B2knN2/P1r1p2b/2Q5/R1b3bN/n1bq4/r4B2/NK1n2b1/nRBRr2R w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 c5 f4 b5 d4 h5 Kd2 c4 Kc2 e3 a4 c3 f5 e2 g5 e1R g6 Be6 g7 Nd7 a5 Ngf6 g8B Bh6 a6 Be3 d6 b3+ Kd3 b2 Kc2 b4 d5 Nc5 Bd2 Nb3 Qf3 Bc5 Rh2 h3 Bd3 h4 Be2 Ra7 Bf4 Rc7 a7 Qd7 Ra5 Na1+ Kd3 c2 Nc3 b1B Na2 b3 Kc3 c1B Bd1 b2 Ne2 Be4 Ng3 B1e3 Bh7 b1N+ Kb2 Rg8 Nh5 Rg3 Qh1 Bd2 Bg8 Ra3 Qf3 Qa4 Qg2 Nc3 d7+ Kf8 d6 Qc4 Bg3 Bg5 Bf4 Qd3 Qf3 Bc4 Bd5 Qe3 Ba8 Qg1 Rf2 h2 Rf1 h1B d8R+ Kf7 Ra6 h3 Ra5 Re2+ Bd2 h2 d7 Bg2 Re1 Bb1 Qc6 h1N Rf1 Re6 Bf3 Ng3 Re1 Bbd3 Rb1 Nf1 Bc1 Qe3 Nf4 Qg1 Rh8 Re1 d8R Be4 Rd1 Nd2 Rh5 Qd4 Rh1 Kf8 Nh5 Kf7 Qb6 Ke8 Qa6 Kd8 Qc6 Ne8 f6 Bg6 f7 Bh7 f8N Na4#
n1NK3k/1bb1N1q1/2N2Rq1/R1r4r/r1b3Bb/2BbPn2/3rRp2/1Q2BN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 Kf3 Kf7 g4 Kg7 b4 d5 c4 a5 e3 h5 c5 d3 g5 d2 c6 d4 b6 h3 g6 d3 b5 a4 b7 h4 b6 h2 c7 a3 Ra2 h3 Qc2 d1Q+ Ne2 d2 Rb2 a2 Bg2 a1B Qc3+ Qf6 Rg1 h1R Qd4 h2 Qe5 Nc6 b8N Qc2 b7 d1R Rb5 Ra4 Nec3 Be7 Bb2 Be6 c8N Rh5 Nd2 Rc1 Rf1 Kh8 Rf2 Rhd1 Re2 h1B Nd5 Qd3 Ra5 Rc5 Qe4 Nd4+ Kf2 f3 Kg3 Bd8 Kf4 Ne7 Bh3 Bb6 Bg4 Bc7+ Nd6 Qa6 Qb1 Nc8 Ne7 Nb6 g7+ Kh7 g8R Bc4 Qe4 Na8 Rg6 Kh8 Qb1 Qg7 Re6 f2 Nf1 Rd2 Nd7 Qc6 Ne5 Qe8 Ndc8 Qeg6 Nh2 Be4 Rc6 Bed3 Rca6 f1B b8B Bh3 Nf1 Bg2 Rd6 Bb7 N5c6 Bb6 Bc7 Nf3 Bf6 Ng1 Bh4 Qc3 Be1 Qcg7 Re6 Bf6 Be5 Bh4 Bc3 Bd8 Rf6 Bb6 Nd5 Bd8 Ke5 f4+ Kd6 f3 Nde7 f2 Kd7 Nf3 Bh3 Q6h7 Bg4 Bc7 Ke8 Qhg6+ Kd7 Bcg3 Kd8 Bc7+
bRb3rB/Q1K5/BB2qB1R/NPqR3n/q7/b3Nq1p/2qn3b/3r2Nk w - - 0 1 illegal: No possible last move
B7/Q1b1Br2/K2R1bkp/1r3N2/bB1bqP1n/3b2N1/B4N2/1nRqR1nn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 a5 f4 e5 b4 d5 c4 h3 g5 h2 b6 e3+ Kd3 h6 b7 e2 b5 e1B c5 e4+ Ke2 a4 c6 d3+ Ke3 d2 Kd4 a3 b6 e3 c7 a2 Bb2 e2 Nh3 Rh7 Nf2 Kg6 Ng4 Ra5 Nf2 Ne7 Ba3 Rf7 Bb4 Nd7 b8B Rb5 b7 Ne5 Qa4 d1N Nd2 Nc3 Rc1 a1B Nde4 Bg7 Ng3 Bf6 Qa7 Bf5 c8N Bd3 Nd6 Qe8 Rg1 h1N Bg2 Qd7 Ndf5 Nb1+ Bc3 Bd2 Bd6 e1Q b8R Qc6 Bc5 Qd1 Rd8 Be1 Rd6 Nf3+ Ke3 Qe8 B3b4 Qa8 Rf1 Ng1 Bf3 Bec3 Re1 Be5 Be4 Kh7 Bg2 Ng6 Bf3 Nh4 g6+ Kg8 g7 Kh7 g8B+ Kg6 Rd8 Bac3 Be7 Bc7 Rd6 Be2 Rc6 d4+ Ke4 Qe8 Rd6 d3 Ke3 d2 Ba8 Bd4+ Ke4 Bf3+ Kd3 Be4+ Kc4 Bc2 Bf8 Qe4 Be7 Ba4 Bc5 Rb2 Bb4 Bc2 Kb5 Bd3+ Rc4 Rb3 Ka6 Rb2 Ba5 Rb5 Bb4 Qc1 Rc5 d1B Rc4 Ba4 Rcc6 Rf8 Ba2 Qd1 Rc1 Rf7
Rb1k1nKb/5R1p/r1nb2R1/2bnN1RB/Q2P4/1r1NqB1b/4q3/B3N1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 a5 Ke4 f5+ Ke5 h3 e4 a4 b4 f3 g4 c3 b6 f4 g5 c4 g6 h2 d3 a3 b5 a2 b7 f2 g7 c2 b6 c3 Bb2 c1B Bg2 f1N Nh3 f3 Nd2 f2 Nf3 c2 Nf4 Ne3 Rf1 h1N Ne1 Nd7+ Ke6 Ng3 b8R Ne7 g8R N3d5 e5 Be3 b7 c1B Rg5 Bc5 Bf3 Nc6 Qa4 Ra6 Ra8 Ne2 b8N Qb6 Bc3 Kd8 Kf7 B1e3 e6 Bfd6 Bb2 Nf8 Nd7 Qb3 Ne5 Ng1 Rc1 Ba7 Ba1 Bec5 Rc3 Bab8 e7+ Kc7 e8B Kd8 Kg7 Bh3 Beh5 Qa3 Rb3 Qc1 Kf7 Qe3 Rb7 Rg8 Re7 Rg6 Re6 Rb6 Rf6 Rb3 Re6 Rf6+ Kg8 Rh6 Bd4 a1B Reg6 Bb2 Bc3 Bba3 Ba1 Bb2 Nd7 Bf6 d4 Bh8 Nfd3 Ne2 Rh1 f1Q N7e5 Ng1 Rh2 Qfe2 Rhg2 Rb6 Rg7 Re6 Rf7 Rb3 R2g3 Re7 Rg6 Ra7 R3g5 Ra6
Nq2bnnb/2N2Pq1/1B2N2b/3B1R1K/2Q1Nbr1/3R1r2/1b1R3p/3rBk1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Kg6 g4 d5 b4 e5 c4 h5 g5 Kf5 c5 Kg4 f5 Kg3 f6 a5 b6 e3 b7 d3+ Ke1 d2+ Ke2 d4 c6 e4 f7 h3 g6 a4 c7 h4 b5 h2 g7 a3 b6 h3 Qa4 d1R Qa6 a2 Bd2 Bd7 c8N Be8 Nc3 Nd7 b8N Rh4 b7 Rg4 Qc4 Ra3 Nb6 Qf6 Rb1 a1B Rb3 Bb2 Na6 Qf4 Nf3 Qb8 Ng5 Bd6 Nbd5 Bf4 Nac7 Nf8 Nge6 Bh6 Bg2 Bf4 Re1 h1R Rg1 h2 Nb6 Bh6 Bf3+ Kh3 Be1 d3+ Kf1 e2+ Kf2 d2 Nba8 Rf4 Rg5 Rg4 Rbb5 Rb3 Rbd5 Ra3 Ke3 Rb3 Rd3 Ra3 Kd4 e3+ Ke5 Rb3 Kf5 Ra3 Bf2 e1B Ne4 e2 Bb6 Bh4 Rh5 e1B Rg5 Beg3 Rh5 Qd8 b8B Bgf4 B8a7 Rc3 Ba5 Qc8 B7b6 Qb8 Rg5 Bf2 Bb4 Bd4 B4a5 Nd7 Kg6 Nf8+ Kh5 Ra3 Rf5 Bf6 Be2+ Kg2 Bf3+ Kf1 Bc3 Re1 Bb4 d1Q B4a5 Qa1 Bc3 Ne7 g8R Rd1 Be1 Bh8 Rgg5 Ng8 Rfd5 Bbc1 Rgf5 Qg7 R5d4 Bb2 Rd2+ Kg1 R4d3+ Kf1 Nc3 Bc6 Bd5 Be8 Ne4 Qb7 Rd4+ Rd3 Qa2 Rf3 R4d3 Qc8 Qc4 Qb8
r2nbr2/prRb2Nb/1PR5/1B1nN3/4NB2/Q2q2b1/2rB1qb1/R1K2N1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 g4 Ke5 e4 d5 b4 f5 b6 h5 b5 d3 g5 d4 b7 f3 g6 Kf4 b6 Kg3 e5 f4 c5 f2 g7 h3 e6 h4 e7 f3 e8R h2 c6 h3 c7 Nf6 g8N Nc6 b8B Nd5 Na3 Bd6 Re6 Rh7 Re8 Bd7 Be2 Kg2 c8N f1R Nh6 f2 Qb3 Bg3 Bg4 Qh4 Re3 Nd8 Bb2 Rc1 Nd6 f1R Be2 Rf8 Nac4 Rc2+ Kd1 d2 Bc1 Be8 Re6 Rb7 Qa3 Qf6 Bd3 Qf2 Ne2 Bd7 Re1 h1B Ne4 h2 Ne5 Be8 Nf5 Bd7 N2c3 Be8 Bf1+ Kg1 Rh6 Bg2 Nb1 h1B Rc6 Bh3 Bd6 B1g2 Ng7 Bhd7 Bb5+ Kh2 Re3 Kh1 Rec3 Qf5 Ke2 d1B+ Kd3 Qf6 Nbd2 Qf2 Nf1 Bdh5 Bc7 Bhg6 Bd2 Bh7 Bd6 Qf5 Ke2 d3+ Kd1 Qf2 Rc7 Bhf5 R3c6 Bh7 Bf4 d2 Bb4 Rc5 Bc3 Rc4 Kc2 Rc5 Kb2 d1Q+ Bcd2 Qdf3 Kb1 Qd3+ Kb2 Rc2+ Kb1 Ra2+ Kc1 Rc2+
nNrB1r2/3Rb3/Bqqb4/2B3b1/1q1P1Nkn/KQnp1b2/N1RBRq2/8 w - - 0 1 illegal: No proof kernel
r1bn2n1/3q1N2/4RQ2/B3Pn2/2qb2B1/R1RK2pr/R1Bn2N1/1rqNr2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kf6 c4 Ke5 b4 d5 h4 f5 b6 g5 b7 a5 b5 a4 b6 g3 h5 f3 h6 Kf4 h7 a3 c5 d3 c6 a2 e5 g2 c7 Kg3 Qa4 f4 Kc3 g4 Kd2 d4 Nc3 f2 Rb1 a1R Rh6 f3 Rb3 Qd7 Qa6 Nc6 b8R Rb1 b7 Bc5 Nh3 Kh2 Ra3 g1Q Re6 g3 Nd1 Kh1 Nf4 Nd8 Ng2 Ba7 Be2 f1Q Ra2 f2 Bg4 Bb6 Ba3 Bc5 Bb4 Bb6 Ba5 Ba7 Nb2 Re1 Nd1 Bb6 Kc1 d2+ Kc2 d3+ Kc3 Bd4+ Kc4 Ra7 Ra8 Qe2 b8R f1N Rb3 Qe4 Nb2 d1N Rc3 d2 Qd6 Qec6+ Kd3 Nde3 Nd1 Nf5 Qf8 Qcd5 Qf6 Qc5 Rb8 Qcc6 Rbb3 Ra8 Rba3 Qc4+ Kc2 Ba6 c8B Qe3 Bb7 Qg1 Be4 Bc8 Nb2 d1R Bd3 Rb1 Nd1 Ngh6 Be4 Nd2 Bd3 Rf8 h8N Ng8 Be4 Rf7 Bd3 Rh7 Nf7 Rh3 Be4 Qb3+ Kd3 Qf1+ Be2 Qf4 Bg4 Qb2 Bd5 Qc1 Bb3 Qf2 Bc2 Qf3+ Nde3 Qfc6 Nd1 Qc4+
b1r4q/3r1q2/1bB2N1P/n2Bp1r1/1K4R1/q1rqR1Rn/Q1N2kNB/4Rn2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kg6 f4 Kf5 c4 g5 b4 e5 b6 a5 b7 d5 h5 g3 h6 g4 c5 d3 Kc3 d4+ Kc4 d2 b5 d3 b6 a4 c6 e3 c7 Ke4 f5 g2 f6 e2 f7 Ke3 Ra3 e1Q Kc3 g3 Kc4 Bc5 f8N Nf6 Rh3 Nc6 b8R Ne4 b7 Na5+ Kb5 Kf2 Nd7 Bb6 Ra1 a3 Qc2 a2 Nf3 g1R Be2 d1R Nf6 d2 Bc4 g2 Bd5 Ng3 Nh4 Qf1+ Kb4 Be6 Bc6 Bd5 c8B Rh7 Qc4 Rc7 Na3 Qh8 Nc2 Be4 Rb1 a1Q Be6 Bf3 Rg8 Rac8 b8R Rd7 Ba3 Rc1 Qa2 d1Q Rg4 Qdd3 Bed5 Be4 Bb2 Bf3 Bc3 Be4 Bd2 Bf3 Nd4 Rc3 Nc2 Qc1 Bg5 Nf1 Bf4 Be4 Bh2 Qf4 Ng8 Qf7 Re1 Qc1 Rhg3 Bf3 Nf6 Be4 Bb3 Bd5 Bca4 Ba8 Bd5 Rh1 Bac6 g1N Rge3 Nh3 Ng2 Rg1 Nf4 Rcc7 Rbg8 Rg3 Ng2 Rc8 Rd4 Rg7 Rg4 Rg5 Rgg3 Rf5 R8g4 Rh5 Be4 Rg5 Bed5 Qa3+
1Rq1nK2/5n1R/2p2N1r/7B/qn1N1bR1/4Q1b1/Pk2bNrn/bq2BB1B w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Ke7 Ke3 Ke6 Ke4 f5+ Kf4 Kd5 e4+ Kd4 h4 g5+ Kg3 b5 d3 b3 e6 c6 h5 b4 e7 f4+ Kg2 f3+ Kg3 f2 e8B b2 h6 c3 h7 b3 e5 c2 e6 Nf6 e7 Ba6 Rh6 Qc8 Nc3 b1Q Rh5 b2 Qe1 Bg7 Bg6 Ne8 Bd2 c1B Ne4 Qc2 Nh3 b1Q Nf6 Qa4 Be4 Bb5 Bd5 Na6 Bh1 Nb4 Qe6 Rg8 h8R Rb8 Be1 Bf4+ Kg2 g3 Kf3 g2 Kg4 g1B Kf5 g4 Kg6 g3 Kf7 g2 R5h7 Bgh2 Qb3 Nc7 e8B g1N Ke7 Ra8 Bh5 Nf3 Qe6 Ng5 Qb3 Ke3 d4+ Bd3 d5 Kd4 d6 Be2 d7 Ne8 d8N Bhg3 Qe6 Nf7 Qe3+ Kc4 Ne6 Rb8 Bfg2 f1N Nf2 Nh2 Bf1 Ra8 Nd4 Ra5 B5f3 Rh5 Bg4 Rh6 Bh5 Qbf5 Rd1 Qd3 Rd2 Kc3 Rd1+ Kb2 Rc1 Qb1 Rc4 Rf8 Rg8 Bh8 Rg4 Rg8 Rc5 Be5 Rb5 Bgf4 Rb8 Rg7 Rh4 Rg2 Rg4 Bg3 Kf8 Bef4 N6e4 Bhe5 Nf6 Ka1 Nf3 Kb2 Rh4 Kc2 Rg4 Ba1 Nd4+ Kb2
2B2kB1/n5RQ/qpRq1rn1/8/1q1N1r1P/R2N2q1/b1r1B1K1/Bn2bn1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 g5 a4 f5 e4 c5 h4 c4 d4 g3+ Kg2 b6 e5 c3 e6 b3 d6 g4 d5 b2 a5 c2 e7 Nc6 a6 Rh6 a7 Be6 Bd2 c1R Nc3 b1N Nb5 Rc2 Ne2 Rf6 d7+ Kf7 d6 Ba2 Rg1 f3+ Kh1 f4 e8B+ Kg7 Bc3 f2 Qd3 f3 Bf7 Nge7 Nbd4 Ng6 Bg8 g2+ Kh2 Be7 Ng3 Kf8 Be2 f1Q Nh1 f2 Bb2 Qb8 d8N g3+ Kh3 Rf4 d7 Bb4 Nb7 Qd6 Nc5 Be1 Qe4 Rd8 a8B Na7 Bb7 Rc8 Bc3 Rc6 Nd3 Qb4 Bc8 Rcf6 Bh5 Qe2 Bf3 Qe3 Be2 f1N Qb7 Qee7 Qe4 Qed6 d8R+ Kg7 Rd7+ Kf8 Rh7 Qa3 Qf5 Qa6 Rg7 Qb4 Qh5 Qd6 Qh7 Qb4 Nhf2 Qd6 Rh1 g1Q Rh2 g2 Nh1 Qf2 Bb2 g1Q Bc3 Bb3 Ra3 Ba2 Ba1 Qb4 Rg2 Qe3+ Rg3 Qed2 Rg4 Qge3+ Kg2 Qd6 Rg5 Qc3 Rc5 Qb4 Rc6 Qg3+
6R1/1N1NKBnN/p1P2q1Q/Br6/N2br3/1bbnq3/2kn2Br/1r3RRb w - - 0 1 illegal: No possible last move
5BQ1/2kPq3/n3r1R1/2Bp4/NR1bq1bb/r1qN3r/K2bR3/1BN1nB1r w - - 0 1 illegal: No proof kernel
RRnqn2n/p4b2/3Rrb2/1q3Bb1/KNBN3b/2Q1n2q/PN4k1/2B1R2r w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 e4 Kd7 d4 Kc6 Kd2 g5 Kc3 b5 Kb4 f5 h4 c3 h5 c2 h6 f3 h7 f4 e5 Kd5 e6 Ke4 d5 g3 d6 f2 c6 g4 c7 g2 e7 g3 e8N f3 Bd2 c1B Bc3 Nc6+ Kb3 b4 d7 Bg7 Be1 Bf6 Bc3 Bcg5 Be1 Nce7 Ka4 b3 Be2 f1Q Rh5 b2 Ka5 f2 Na3 b1Q Nf3 g1N Nc4 g2 Rh6 Nh3 Bc3 g1B Nb2 Nf4 Qc1 Nfg6 Bc4 Qh3 Nd4 f1N Bd2 Bf2 Qc3 Bfh4 Bc1 Ne3 Ka4 Bb7 c8B Bd5 Nc7 Bf7 Na6 Qd3 Nc2 Kf3 Nd4+ Kg2 Nb4 Rb8 Rb1 Rb6 Ra1 Re6 Rb1 Qf8 d8R Qdf5 Rd6 Qd8 Rb6 Qc5 Rb8 Qcb6 Bd7 Nc8 Ra1 Ng8e7 Ra8 Nd6 Rb1 Ne8 Ra1 Rg8 h8R Nc8 Rb8 Rg7 Rg8 Nh8 Ra8 Rc6 Bf5 Rh7 Rf8 Be7 Rd6 Bef6 Bd2 Qb7 Re1 Qb8 Bc1 Rb6 Rd5 Re6 Rd6 Qb5+ Kb3 Qda5 Nd1 Nb6 Bc2 Nc7 Ba3 Qg4 Nf5 Bf2 Nd4 Rh1 Rfb8 Qh3 Bc1 Nc8 Bf5 Ne8 Nb2 Qd8 Ka3 Bfh4 Kb3 Qbb6 Ka4 Qb5+
1rr5/1Nr2RK1/nRb1rnQr/2B1bBn1/1N1p1R2/q5BN/2P2r2/1B1n3k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 a5 b4 f5+ Kf3 Ke5 e4 d5 g5 h3 b6 h2 b7 d3 g6 d2 b5 h4 b6 a4 g7 d4 Ra2 h3 Be2 a3 Ba6 Bd6 Ne2 Qe7 Rf1 h1R Ra1 h2 Nbc3 a2 Ba3 Nf6 g8B Bd7 Bc5 Bc6 Bd3 Na6 Ng1 Rc8 b8B Rc7 Qe2 d1N b7 Rc8 Rb1 a1R Rb6 Rc7 Qf2 Rb1 Ba2 Rhc8 Nh3 Rg1 Qh4 h1R Qh7 Rg6 Nd5 Rh6 Rf2 Re1 Qg6 Rb2 Nb4 Re2 Kg2 f3+ Kg3 Re1 Rf1 f2 Bb1 f4+ Kf3 Nh5 Kg4 Nf6+ Kg5 f3 Ba7 Re2 b8R Rb3 R8b7 Qf8 Rg1 f1N Rg4 f2 Bb8 Nh2 Rf4 f1R Ra7 Rff2 Rab7 Ke6 e5 Re4 Na2 Kd5 e6 Be5 e7 Re1 e8N Nf3+ Kf5 Ng5 Nd6 Qe7 Ra7 Re3 Nb7 Qd6 Bb4 Qc5 Ba3 Qa5 Bc5 Qa3 Be4+ Kc4 Nb4 Kc3 Bd5 Kd2 Be6 Ke2 Bd7 Kf1 Be6 Ngh7 Bd7 Rb2 Ke6 Re1 Kf7 Ng5+ Kg7 Kg2 Re4 Kh1 Rf4 Nf7 Bf5 Ng5+ Be7 Nf3 Nc5 Rd7 Rh4 Bb5 Na2 Bc7 Re6 Bd8 Bg3 Bc7 Rf4 Ng5 Rd6 Ba4 Rc6 Rb5 Nb4 Rbb8 Rb6 Re6 Rab7 Bd6 Rc7 Be5 Nb7 Rdd6 Rd7 Rdc6 Bc5 R6c7 Rf7 Bc6
n1Q5/2NRBRK1/P1Bprn1n/bb2r2B/qN1BN3/6n1/2b1b1kn/3nR3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 h5 a4 e5 f4 b5 g4 b3 c4 d3 c5 d2 a5 b2 c6 h3 a6 h4 c7 b4 Bg2 h2 Qe2 d1N Ra5 b3 Ra1 h3 Ra4 Bb4 Qc4 d6 Qc5 Ba5 Nf3 Nh6 Nbd2 b1N Ne1 b2 Nc2 Bd7 c8B Na3 Re1 h1B Nb4 b1B+ Qc2 h2 Bb2 Qe7 Bd4 Re8 Kd5 Nc4 g5+ Kg7 g6 Kf6 g7 Nb6+ Ke4 Bb5 g8R Qd7 Rg7 Re6 Re7 Qe8 Rd7 Ra7 Ra3 Na8 Rf3 Rc7 Bb7 Rc5 Bc6 Rd5 Bf1 Bg2 Bc4 h1N Be2 Bf1 Rf2 Rc5 Bh5 Bfe2 Rff1 Rc3 Kd5 Ng3 Qc1 Bc2 Rf3 Qf7 Rff1 Re3 Ne4+ Kg7 f6+ Kh7 Nd2 e4 f5 Qe7 f7 Qh4 f6 Qf4 Bg4 Kg6 f8N+ Kg5 f7 Kh4 Bh5 Kh3 Rf3 Kg2 Rff1 Rf6 Ne6 Rg6 Nc7 Re6 f8B Qg4 Rd8 Nd7 Rf7 Qf4 Be7 Qg4 Bh8 Nf6+ Kd4 Rf3 Rd7 e3+ Ne4 Rf5 Bg7 Bb3 Qc5 Bc2 Bh8 Rg5 Qf5 Qh4 Qg4 Rge5 Qg8 Bg4 Qc8 e2 Bg7 Nb2 Ke3 Nd1+ Kf4 Rg5 Nf2+ Rd5 Na2 Ne8 Rf1 e1N Be5 Nf3 Re1 Ngf5 Bg7 Nh2 Bh8 Qg3+ Kg5 Qb3 Nb4 Bge2 Ne4 Qa4 Bd4 Nf6 Kg6 Ng3 Kg7 Rde5
bBB1kn2/R3N2N/K1b1r1P1/Q1r5/1BnRBrp1/n2qb3/n3b2R/4N2r w - - 0 1 illegal: No proof kernel
1b6/rn1KB3/bR2P1r1/1Q2nB1k/1nR2r2/B1b1N3/1NRp1n1b/q2r1NR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 Kf7 h4 Kg6 c4 a5 b6 a4 b5 a3 e5 f3 e6 f2 c5 g3 b7 g2 c6 f4 b6 a2 c7 g4 Bd2 g3 Nc3 f3 Be3 Kh5 Na4 Rh6 Bg5 Ne7 Ne2 g1B Rh2 g2 Qb1 Nf5 Be7 Ra7 Qb5 Rg6 Nb2 Na6 b8N Nd6 Nd7 Nb7 Ne5 Qd7 Rd1 a1B Nec4 Qe8 Ba3 Bd6 Ne3 Qh8 Rc1 Qf6 Rh1 Bgh2 Rc2 g1R Bh3 f1N Bf5 f2 Rc4 R1g4 Rg1 Nd2 Rc2 f1R Ng3+ Kh6 h5 Nf3 Rc4 Rf4 Rc2 Kg5 h6 Qg7 h7 Rd1+ Rd2 Qe5 Ngf1+ Kh5 h8B Qf6 Bg7 Be5 Bgf8 Nb4+ Ke2 Bd6 Be7 d3+ Kf2 d4 Rc2 d2 Ke2 Na6 Kd3 Nb4+ Kc4 d3+ Be4+ Nc5 b7 Ne5+ Kd4 Qh8 b8R Ba6 Rb6 Nb7 c8R Bb8 R2c4 Rb1 R8c7 d1N Rc2 d2 R7c4 Nd8 Kc5 Nf2 Bf5 Rd1 Na4 Bc3 Nb2 Rc7+ Kd6 Ra7+ Rc7 Ned3 Kd7 Nb7 Rc5 Qf6 Rcc6 Ne5+ Kc8 Ned3 Nbc4 Ba1 Kd7 Qb2 Rc5 Qb1 Rc8 Bc3 Nb2 Qa1 Rc4 Ne5+
KQ1NrN2/1P6/2rr2R1/N3q1pn/1qq1R1p1/1RBNb3/knB2Bb1/6nb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 f5 h4 g5 b4 a5 e4 a4 b6 d3 Kb5 d2 c4 a3 c5+ Ke6 h5 d5 h6 f3 c6 f4 h7 a2 c7 f2 b7 f3 Kb6 d4 b5 d3 e5 Kd5 e6 Kc4 e7 Qd7 e8R Ra5 Ne2 Qg7 Rh6 Nf6 Nf4 Nh5 Rg6 Nc6 b8N Qe7 Nd7 Qb4 Re4+ Nd4 Na3+ Kc3 Be2 f1Q Rb1 a1Q Nc4 Bb7 c8N f2 Na7 Nf3 Nc6 Ng1 Nd8 Ra6+ Kc7 Rf6 Kb8 Bc5 b6 Be3 Nf8 Rc6 Na5 Rg8 Qa4 d1R Qb5 d2 h8B+ Kc2 Bf3 Qfc4 Rb3 f1B Bc3 Bg2 Nd3 Ba8 B1b2 Kb1 Bd4 Ka2 Bbc3 Re1 Be2 d1N Bc5 Nb2 Bd1 Rd6 Bc2 Rc1 Qe8 Bd5 b7 Bh1 Ka8 Bc6 Re7 Bcg2 Re4 Rh8 Qe5 Rg8 Nd7 Re8 Nf8 Rc6 Qb8 Rd1 Nf4 Rdd6 Nd3 Qe1 Ba7 Qg3 Bad4 Qe5 Bb6 Bd2 Bf2 Be3
2BK1B2/1b4b1/N2r1RR1/1kN1r1r1/b2QR1B1/R1r4P/4pNqp/2nn1n1r w - - 0 1 illegal: No proof kernel
1b1Nr1BB/bb1Q1nRR/2p1K1n1/r2P3N/R1B1kB2/n3pN1n/1r6/2n3q1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 h5 g4 e5+ Ke3 a5 f4 c6 b4 h3 f5 h4 b6 a4 g5 h2 b5 c3 f6 c2 g6 a3 g7 a2 b7 h3 f7 Bc5 f8N Qg5+ Ke2 e3 Kd3 e4+ Kc3 e2 b6 e1B+ Nd2 e3 Qg4 Nd7 b8B Ne5 b7 Nh6 g8B+ Nhf7 Bb2 c1N Ne6 Bg3 Ngf3 Ng6 Bf4 Ba7 b8R Bb7 Nd8 Rh5 Rg1 h1N Ne4 h2 Rc8 Rb8 Rc7 Nf2 Bd3 h1R Rg2 Bh2 Ng3 Rh8 Nh5 Nh3 Bc4+ Ke4 d5 Rd1 Rg1 Rd2 Rh1 Ra8 Qd7 Qg1 Kb4 Bb8 Bd4 Rb2+ Kc5 Ra7 Bh7 Rg8 Bh8 Re8 Bg8 Ra5+ Bb5 Nfe5 Kd6 Ba7 Bc4 Bg3 Qe6 Bh2 Rg7 Bg3 Qe7 Bh2 Ke6 Nf7 Rb1 Bg3 Rh2 a1N Rh1 Rbb5 Rb4 Nc2 Ra4 Rb2 Rh2 Rf8 Qd7 Na3 Bg5 Bc7 Bf4 Bcb8 Rg2 Ne7 Rh7 Re8 Rgg7 Ng6+
1n5q/1KRNb2b/p2n1n2/1N1RR1b1/2Q4p/4BP1B/r1b1Br1k/rN4Nb w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Kg6 g4 Kg5 b4 Kf4 b6 h5 b7 d5 b5 e5 b6 d3 Kc3+ e3 g5 h3 g6 d4+ Kb3 e4 Ka4 d2 Kb5 d3 c5 h2 f3 Kg3 g7 e2 c6 e1R c7 e3 Qa4 d1B Ra3 e2 Rb3 d2 Rc3 Bc2 Bh3 d1N Be3 Nf2 Qc4 B8f5 c8N Ne4 Nd6 Ngf6 g8B Be7 Ka5 h4 Nb5 Bh7 Rd3 Rd1 Rd5 Rd2 Bge6 e1B Bef5 Na6 b8N Nd6 Nd7 Nb8 Bd3 Qc8 b7 Rf2+ Nd2 Rg8 Be2 Rg4 Re5 Qh8 Rd5 Rd4 Re5 Rd3 Rd5 Rc3 Nb1 Bd2 Re5 Bc1 Rd5 Rd3 Re5 Rd2 Rd5 Na6 b8R Rd1 Rc8 Nb8 Rc7 Rdf1 Bb6 Bg5 Be3 Rc1 N1a3 Ra1 Re5 a6 Kb6 Ra2 Nb1 Ra7 Rc8 Rc7 Rd5 Rc5 Rc7 Ra1 Re5 Rd5 Ka7 Rd3 Ka8 Rda3 Rd5 R3a2 Re5 Nf7 Kb7 Nd6+ Ka7 Nde8 Kb7 Ba3 Bhf1 Bf4 Nh3 Bg5 Bg2 Bf8 Rd1 h1B Rdd5 Be7 Ng1 Kh2 Bh3 Nd6+
n1N2B2/n7/kBnKR3/rn4qp/5r2/2pNPNQ1/n1B1qrRb/1R1bB3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 Ke5 f5 b4 c5 g4 Kc7 d4 Kb7 d5 h3 b6 c3 g5 c4 b5 c2 d6 f3 g6 f2 e3 c3 d7 f4 g7 h2 Na3 f3 Ne2 a4 Nd4 Bd6+ Kd5 Ne7+ Ke6 Nec6 g8N Na7 Bc4 f1R Rb1 f2 Rg1 h1Q Bd3 Nbc6 Qg4 Qf3 Ne7 Qe2 Bd2 c1N Qg3 Rf8 Be1 Rf4 Nac2 a3 Rg2 a2 Nb4 a1N Bc2 Na2 Nf3 Nb3 Nd3 Nbd4+ Kd5 Be5 Kc5 Qg8 d8B Bg4 Nc8 Qg5 Kd5 Rg1 Be7 f1N Bf8 Nd2 Kc5 Nc4 Kd5 Kb8 b7 Rf1 Kc5 Kc7 b8B+ Kb7 b6 Ka6 b7 Rf2 Bc7 Nb6 b8R Ndb5 Rb7 Rb8 Bd8 Na8 Re7 Rb7 Re6 Rd7 Bb6 Rdd4 Ne7 Ra4 Nc8 Ra5 Nh4 Qf1 Kd5 Bd1 Nf3 Qe2 Qg4 Rf6 Qf4 Qg4 Qg5 Bh2 Qh4 Rf4 Qg3 Nbd4+ Kd6 Qh4 Rb3 Qg5 Rb1 Ndb5+
q3r1Q1/n4N2/1r3K2/1P5b/Brn1k1pp/Bn5n/Rn3R1N/BNB1b1Rq w - - 0 1 illegal: No proof kernel
rR2q3/N1R1bRn1/4b1Bp/2r1r1r1/1B4Np/P2B1rqN/1K5b/N2knQ2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Kd7 d4 Kd6 Kd2 c5 Kc2 b5 g4 f5 g5 b3+ Kc3 c4 g6 b2 g7 h6 a3 b4+ Kc2 c3 Qf3 b3+ Kd1 c2+ Kd2 Ne7 Kc3 Na6 g8B Nb4 Qe3 f3 Rh2 f2 Qd3 f4 Bf7 f3 Bg6 Be6 Nh3 Rg8 Nd2 b1R Qc4 b2 Bd3 f1R Rf2 Rg1 Nb3 Qe8 Bd2 Rbe1 Rc1 b1Q Na1 Nf5 Qb5 Ng7 e5+ Kc7 Qa6 Rg5 d6+ Kd7 d5 Be7 Rf1 f2 Qc4 Qa2 Qf4 Qc4+ Kb2 Qc7 Qf3 Rf8 Bc3 Rff5 Qe2 Nc6 Bb4 Nd4 Qd1 Nf3 Qe2 Kc8 d7+ Kb7 d8N+ Kb6 d6 Qb8 d7 Qd6 Ba5+ Kc5 Bb4+ Kd4 Qd1 Ke3 Nc6 Re2 d8R Ne1 Na7 Qc7 Rb8 Rf3 Rh1 f1R Rg1 R1f2 Rf1 Rfg2 Rf2 R2g4 Rf1 Rc4 Rf2 Rc5 Rf1 Ba2 e6 Qg3 Rf2 Kd4 Rf1 Ree5 Rf2 Ke3 Rf1 Bd6 e7 Be6 Rf2 Qc8 e8N Be7 Nf6 Qe8 Bde4 Ng2 Qg1 Ne1 Rf1+ Ke2 Ng4 Re3 Rf7 Rd3 Rd1 Rf3 Rd7 c1B+ Kb1 Nd3 Rc7 Ne1 Bd3+ Kd1 Qf1 Be3 Kb2 Bg1 Bb5 Bh2 Ba6 Qc8 Bad3 Qe8
n6B/2bn2q1/3RNB1p/pn3RB1/2P2R1q/rBrbn3/2n2N1k/2QKN2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 b4 Ke6 g4 Ke5 c4 d5 g5 f5 g6 h3 b6 h2 b7 d3 b5 f3 g7 f4 b6 d4 Qe2 d2+ Kd1 f2 Bb2 f3 Ba3 Kf4 e5 Kg3 e6 Nd7 b8B+ Bd6 b7 Ne7 Bb2 Nd5 e7 Bc7 e8N N5b6 Nc3 Qh4 Qe1 h6 Ra3 Rf8 Bd3 a6 Qe3 f1N Ra5 Rf6 Qe1+ f2 Bc2 Rf3 Rf5 Ra7 Bb3 Na8 Ba1 Kg2 Ne4 Rc3 Nf3 Ne3+ Ke2 d1R Rf1 h1Q g8R+ Qg5 Bb2 Nc2 Ng7 Qhh4 Ne6 Qg7 Rd8 Ra1 Bc1 d3+ Kd1 d2 Qe3 Ra3 Ne1+ Kh2 Qg5 a5 Qe3 Ra6 Ba7 Rc6 b8B Rd6 Bd4 Rd5 Rf4 Rh5 Bf6 Bb7 Ba7 Bd5 Bad4 Bc6 Rg1 f1N Nf2 Be4 Rg5 Bd3 Rgf5 Ng3 Ng2 Ne4 Ne1 Nd6 Bde5 Nb5 Bd4 Qg8 Bh8 Qg7 Bf6 Nf8 Rd6 Nd7 Bb2 Rg5 Ba1 Rg1 Bg5 Rh1 Ba4 Rcb3 Baf6 Rc3 Bb3 Be4 Ke2 d1N Qc1 Nde3 Kd2 Ng2 Ke2 Bd3+ Kd1 Nge3+
2rN1K2/1B6/1b1p2RR/q1rpqbq1/n4q1N/N2R1nQq/2bP3R/1B1k1B2 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 axb5 g5 b3 gxh4 Ba3 Qg5 Bb4 Qd8 Bd6 cxd6 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Kd4 g4 f5 e4 a5 c4 h3 b6 f3 b7 f2 b4 a4 e5 a3 c5 f4 b5 f3 g5 a2 c6 h2 b6 Ra5 c7 Rc5 g6 Na6 b8R Nh6 g7 Ng4 Bc4 f1B g8N f2 b7 Bd3 Nh6 f1Q Qb3 Qf4 Nf7 Bc2 Bf1 d5 e6 Ne5 e7 Nf3 e8B d6 Qa3 Bg7 Ra8 B8f5 c8B Qa5 b8R Ke4 Qc3 Bd4 Bb7 h6 Beb5 Rhc8 Na3 Bf2 Rc1 a1Q Nd8 Be3 Qg7 Qae5 Qg3 Bd4 Ba4 Bf2 Re1+ Be3 Re2 Kd3 Bb3 Bd4 Ba2 Bf2 Nh3 Be3 Rg1 h1Q Bb1 Qg2 Ng5 Bd4 Rh1 Qg1 Bh3 Be3 Reh2 Bd4 Bg2 Ke2 Bf1+ Kd1 Ra7 Nb4 Ra6 Na2 Rb6 Bf2 Rb3 Nc3 Ra8 Na4 Rd3 Bg4+ Kg6 h5 Kh7 h4 Kg8 Bf5 Kf8 h3 Rb8 Rc4 Ra8 Bb6 Rb8 R4c5 Ra8 Ne1 Nf3 Qge3 Nh4 Nf3 Rg2 h2 Rhg1 h1Q Rh2 R8c6 Rc8 Qg5 Rc7 Qg2 Rh7 Rc8 Rh6 Qgf4 Qh3 Qh1 Rgg6 Qg2 Qg3 Qh3 Bc6 Qg5 Bb7 Q3f4
2Nk4/B1r4r/R1p1Bbqp/b1n2B1Q/1qR1nnNN/5R1b/3K1Pn1/3n2N1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 e5 b4 a5 g4 c6 d5 h6 d6 c3 g5 a4 b6 c2 b5 h3 b7 h2 b6 e3 g6 e4 g7 e2 Bd2 c1N Ra2 a3 Bc3 Nd7 b8R Nd3+ Kd2 e1Q+ Kc2 e3 b7 e2 Nd2 Rh7 Bb4 Qg5 Ndf3 Kd8 Nh4 N7c5 d7 Nf4 Bh3 Ra7 Bf5 Nf6 g8B Ng4 Bge6 Qg6 Qd5 Qb1+ Kd2 e1N Bc3 Ne3 Bd4 Nd1 Qf3 Ne2 Qh5 Ng2 Ra8 Nef4 b8N Bg7 Rc2 a2 Rc4 Rc7 Ra6 a1B Be3 Baf6 Bd4 Ke7 d8N Bh8 Nb7 Qb4+ Rc3 Ke8 Nd6+ Kd8 Nd7 Bhg7 Ne5 Bf8 Ne2 Bd7 Rf1 h1N Ng4 Ng3 Ng1 Nge2 Nc8 Bd6 Kc2 Bde5 Rf3 Nec3 Re1 Rb7 Rf1 Bc7 Kd2 Ba5 Re1 Rc7 Re4 Bb6 Be3 Ba5 Rc4 Qb3 Bf7 Nb2 Ne5 Ncd3 Bg4 Nbd1 Ba7 Qb4 Bd5 Bf5 Be4 Nc5 Bb1 Be4 Be6 Bf5 Bc2 Bg4 Bcf5 Bh3 Ng4 N3e4+
N4Nq1/Rn4RP/1p3Qq1/brN1B2r/3b1n1b/b1R3pk/6b1/N2nB1KB w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 f4 Kd7 Kf2 e5 d4 g5 a4 c5 h4 c4 d6 Ke6 d7 Kf5 d5 e3+ Kg2 g3 a5 g4 a6 b3 a7 e2 h5 e1B d6 c3 h6 c2 Ba6 b6 Ra5 b2 Qe2 Ne7 Bb7 Nbc6 Nh3 Nd5 Kg1 e4 Nd2 b1Q Qf1 g2 Nf2 e3 Nd3 e2 Bb2 c1N Nb3 Na2 Rh3 Bh4 Ndc5 e1B Be5 Nac3 Na1 Nd1 Rc3 Rh7 Ra6 Na5 Qf2 Qg5 d8B Qg8 d7 Bd2 Bc6 Bb7 Qf1 Rc8 a8N Qe4 Ra7 Rh8 Na6 Ba3 Nc5 Qd3 Bg5 Rc7 d8R Rg7 Be7 Rg5 Rd7 Rh5 Kh2 g1B+ Kg2 g3 h7 Kg4 f5 Bd4 f6 Qdg6 f7 Nf4+ Kh1 Be1 f8N Bd2 Qf2 Kh3 Kg1 Be1 Bh1 Bg2 Bg5 Nb7 Rg7 Bd2 Rf3 Ba5 Rc3 Ne6 Bd2 Nf4 Ncd7 Q8f7 Nc5 Rg8 Be1 Qb3 Nfe6 Rd8 Nf8 Rd5 Na4 Rb5 Nc5 Ne3 Qf3 Qc4 Qc6 Qg8 Qf6 Nd1+
Rb2n1rQ/nb2pkr1/2Nq4/R2N4/R1B2p2/B1rB1K2/rr2PN1b/2q4B w - - 0 1 legal: proof: f4 b5 g4 g5 d4 c5 a4 cxd4 axb5 gxf4 g5 h5 Qd3 Ba6 Qf5 Bc8 Qg4 hxg4 Kf2 a5 b4 d5 h4 f5 c4 f3 h5 f4 g6 g3+ Ke1 d3 c5 g2 Kf2 d2 b6 d1R c6 d4 g7 d3 h6 d2 b5 a4 b7 a3 c7 a2 b6 Nf6 g8B Qd6 h7 Ra3 Rh6 Bg7 Bc4 Nc6 b8N Rc3 b7 Na7 Ba3 Rg8 h8Q Kf8 Rh5 Ne8 Rc5 Be5 Nh3 Rdc1 Ra5 d1Q Bd3 R1c2 Nc6 Kf7 b8R Bb7 c8B Rb2 Ra8 Qc1 Bcf5 Rg7 Ba6 Rg8 Bfd3 Rg7 Nd2 Rg8 Nc4 Rg7 Ne3 Rg8 Rb1 a1R Nd5 Raa2 Bac4 Rg7 Ra1 Rg8 Kg1 f2+ Kh2 g1B+ Kh1 Ke6 Bg2 f1R Nf2 Kf7 Bf3 Qd8 Bg2 Bb8 Bge4 Qd6 Bf3 Ng7 Kg2 Bh2 Bfe4 Ne8+ Kf3 Rd2 Bb4 Rab2 R1a4 Rfg1 Ba3 R1g7 Bf5 Nf6 Bh3 Ra2 Bg2 Rdb2 Bh1 Ne8
1R4K1/1p1n2bq/2Qq1NB1/1r3nPR/R1n1R3/5bBN/2kpn2r/1q2BNn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 a4 Ke4 g4 h5 f4 e5 f6 d5+ Kb3 d3 c4 d2 c5 d4 Kc4 d3 f5 b3 a5 h3 g5 b2 f7 h2 a6 h4 c6 h3 a7 Bg7 f8B Nd7 c7 Ne7 f6 Nf5 Qa4 d1N f7 Qe7 Bf4 Qd6 Bg3 Nde3+ Kb3+ Nc4 Qc6+ Ke3 Nd2 e4 Ra4 b1N Be2 Nc3 Bh5 Ne2 Nf1+ Kd4 Be1 d2 Bg6 Kd3 Be7 e3 f8N Rh5 Nh7 Rh4 Bf6 Rh5 Be5 Rh4 Ka2 Kc2 Nf6 Rh8 Nf3 Ng1 B5g3 e2 Rb4 Re8 Ra4 Re5 Rb4 Rb8 a8R Rb5 Raa4 Ra8 Rb3 Ra6 Re3 Ra8 Re4 Rb8 Ne5 Ra8 Nd3 Ra6 Bef2 e1Q Nf4 Qd1 Be1 Qh5 Nd3 Qh6 Nf2 Nf3 Rg1 h1N Rg2 h2 Nh3 Ng1 Rf2 Nb6 Rff4 Be6 c8R Nd7 Rh4 Bd5 Rh5 Rab6 Rb8 Ra6 Be5 Nhg3 Bf4 N3e2 Bfg3 h1Q Rf8 Rc5 Rb8 Nb2+ Ka3 Nc4+ Kb4 Ra8 Re6 Bf3 Re4 Ra6 Nh7 Raa5 Ne3+ Kc1 Rg8 Nb2 Bef2 Qg2 Rb8 Rb5+ Ka3 Qf1 Nf6 Qe1 Reb4 Kb1 Kb3 Re5 Nf1 Nc1+ Kc3 Qd1 Be1 Re2 Rd4 Rh2 Re4 Nbd3 Kc4 Kc2 Re3 Nce2 Re4 Rb6 Bgf2 Qb1 Bg3 Qdb4+ Kd5+ Qc5+ Ke6 N3e5 Raa8 Nc4 Kf7 Qd6 Kg8 Rb5 Ra4 Qh7+
kq2qQb1/3BN1q1/1Kn2Rr1/B2NRn2/3pr3/pR2q1P1/1B2nN1R/3b2b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 c4 Kd7 e4 Kc7 b4 Kb7 e5 a5 b6 h5 b5 f3 e6 f4 c5 f2 e7 f3 e8N h3 Rh2 h4 Be3 a4 Bh6 a3 Nc3 Nc6 Rc1 Be6 Ng7 Qe8 Nf5 Ra4 Bd2 Rh6 Ne7 Ka8 Qb3 Rf6 Re1 Rg6 Qb4 Nh6 Re5 Bg8 Bc1 Bg7 Bb2 Nf5 Be2 f1N b7+ Kb8 Bd1 f2 Bg4 Ka7 b8B+ Ka8 b6 N1g3 Bc7 Ne2 g3 f1Q Bd8 Qf2 Bc7 Bh6 Bd8 Be3 b7+ Ka7 b8R Qf4 Rf2 h2 Nh3 h1Q Ba5 Qe1 Rh2 Bg1 Nf2 h3 Rb5 Ka8 Rb6 Nh6 Bd7 Nf5 Rb7 Qh6 Rb6 Qg7 Ra6+ Na7 c6 Qc1 c7 Qe3+ Kc2 d3+ Kb3 d2 Rf6 Qb8 c8R Nc6 Rc7 Qe8 Rb7 Qb8 Qc5 Re4 Rb5 d4+ Ka4 d1B+ Rb3 Qe8 Kb5 Qb8+ Ka6 Qe8 Ncd5 Qb8 Rg2 h2 Qb4 h1Q Rh2 Qe8 Kb6 Qhf3 Nc8 Qff4 Qf8 Nc1 Nce7 Ne2 Ree6 Qd6 Re5 Qdb8+
1R1r4/4kN1K/2B2n2/2r2q1p/3QnNbB/pb3n1B/rPRr3b/R3Nq1B w - - 0 1 illegal: No possible last move
b1nN2Q1/1nr1B1RK/7B/1k5p/N1qb1p2/2q2Nr1/rP2N2r/1q1nR1RB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Ke4 f5+ Ke5 d5 c4 Kd7 g4 a4 e4 f3 b6 Kc6 b7 h3 c5 f2 g5 d3 g6 h2 g7 a3 Bd2 d4 Ne2 a2 Bg2 f1Q Bh6 f4 Qb3 d2 Rg1 d1N Bh1 d3 Nd2 Nd7+ Kf5 Rh7 Kg6 Qc7 b8B Ra3 Nf3 d2 e5 Bb7 e6 Ba8 e7 Qe5 e8R Qc3 Bd6 Be7 Qf7 Bf6 Re7 Kb5 c6 Nc5 c7 Nb7 c8N Bd4 Nb6 Rb3 Rb1 a1R Na4 Ra2 Rd7 Rba3 Be7 Rb3 Nc1 Qfc4 Ne2 Nf6 g8N Ne4 Rc7 Ned6 Qg7 Nc8 Qh8 Ne3 Rbe1 Rf7 Qg7 d1Q Kh7 Qa1 Rc6 Nd1 Rcg6 Rf8 Qh8 Rf7+ Rg7 Qac1 Bh4 Rc7 Ne7 Rba3 Nc6 Qa1 Be7 Qb1+ R1g6 Rb3 Nd8 Rba3 Bg2 h1R Qg8 Rh2 Bh1 Qcc2 Bb4 Rd3 Rgg1 Q2c3 Be7 Qa1 Nh4 Rg3 Nf3 Qb1+
6NR/1rRr1B1B/N4nK1/4qbPN/nq2nb1p/1Q3q2/2r1k1pn/3N1RB1 w - - 0 1 illegal: No proof kernel
rn2b3/4qn2/2N2BRR/2p1BbbN/5r2/q1RnpN1r/2BK2QP/k2Br3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 d4 Kd7 a4 Kd6 f4 g5 f5 b5 a5 c5 f6 e5 a6 b3 a7 b2 f7 g3 Bg2 b4 Bd2 b3 Ra5 g4 Bh3 e3 Ra4 e2 Rc4 g2 Qc2 g3 Bf5 Be7 f8R Bd7 Nc3 b1B Bf4 b2 Kd2 e1N Nf3 g1R Ne2 g2 Ng3 Bg5 Nh5 Nd3 Rc3 Re1 Rg1 Qe7 Bg4 Nh6 Rf6+ Be6 Rg6 Nf7 Rh6 Ba2 Bf5 b1Q Bh7 Qb4 Be4 Kc7 d6+ Kb6 d7 Kb5 d8N Bf5 d5 Qa3 d6 Kb4 d7 Bc4 Qa2 Bb5 Nc6+ Ka4 d8B Rf8 Rf1 g1R Qb2 Rg3 Rg1 Rh3 Rg3 Bf6 Rgg6 Bg5 Qa2 Qc7 Bf6 Qe7 Na5 Be8 Nc6 Nb2 Bb1 Nd3 Qd5 Qb3 Bc2 Ka3 Qe4 Ka2 Qe2 Ka1 Qg2 Qa3 Bd1 Nd7 Bc2 Rc8 a8B Nb8 Bb7 e4 Ba6 Rc7 Bb5 Ra7 Bba4 Ra8 Bd1 Nd6 Bd4 Rf6 Bac2 Nf7 Be5 Be6 Be3 Rf4 B3d4 B6d7 Bf6 Bf5 Bde5 e3#
1N3q2/Bk1nn3/1b1QbRB1/1rpR4/2R1qP1n/4N1Nn/p3BKRr/r6q w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 f4 e5 b4 h5 d4 a5 b6 Kc6 b5+ Kb7 g5 a4 g6 e3 g7 a3 d5 e4 d6 a2 d7 c3 Bh3 c2 Qd6 e2 Bf5 h3 Be3 c1R+ Qd1 h2 Nd2 h4 Bg6 h3 Nc4 Ne7 g8B Ra5 Kf2 e1N Qd6 Nf3 Ne2 Nh4 Rg1 h1Q Rg2 h2 Ng3 Bg7 Rb1 Qf8 d8R Be6 Rb4 Ra1 Bc5 c6 Ne3 Nd7 Rc4 Bd4 B8f7 Rh6 Bh5 Rh8 Bfg6 Ne5 Rd7+ Kc8 Nf5 Qc1 Rb7 Bd7 Ng3 Nhf5 Qd5 h1N+ Ke2 Rh6 Nd1 e3 Rc7+ Kb8 b7 Nf2 Bf3 Bc8 Rd7 Rh2 Rd6 Bd7 Rf6 Nh4 Ba7+ Kc7 b8R Nh3 Kf1 Be6 Rd8 e2+ Ke1 Qc2 Qc5 Qd3 Rd5 Qe4 b6+ Kc8 Bg4 Rb5 b7+ Kc7 b8N Nd7 Qd6+ Kb7 Kd2 Bb6 Ne3 c5 Bf3 Qe5 Kd3 e1Q Bg4 Qh1 Ke2 Ng1+ Kf2 Qe4 Be2 Nh3#
NR2R1r1/BR1q1k2/r3q3/1pbB4/1qNn1NBp/1nr4K/2B1Q1bP/n2q4 w - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a4 d5 axb5 dxe4 b6 c6 b5 cxb5 Kf2 e5 g4 h5 Kg2 a5 d4 f5 c4 a4 b7 f3+ Kh3 h4 c5 a3 c6 f2 d5 f4 d6 e3 c7 f3 d7+ Kf7 g5 e2 Bf4 e1Q Nc3 e4 Nce2 a2 Rc1 a1N Be3 Ra6 Ba7 e3 Nf4 Nc6 b8R Bc5 Bd3 f1R Bc2 f2 Qe2 Nf6 Nf3 Rg8 Nd2 Ne4 Nc4 Bb7 c8B Qb4 Rg1 Qc7 Re1 Nd2 Rg3 Nd4 d8N+ Ke8 g6 Bf3 g7 N2b3 Be6 Qd7 Bg4 Ke7 Nde6 Kf7 Rg2 Rh1 Nc7 f1Q Na8 Rg1 Qf2 Rc8 Re2 Qd1 Re1 e2 g8B+ Kg7 Bd5 Kf6 Rf1 e1Q Qe3 Qee2 Re1 Rcc6 Qd3 Qee6 Re5 Kf7 Qe2 Ra3 Rb7 Rca6 Rf2 Nc1 Rf1 Rc3 Re1 Ncb3 Rg5 Rf1 Rg8 Rg1 Rgb8 Rg2 Bgf5 Rg5 Bg4 Rg8 Qe3 Rc6 Bde4 Qf6 Re2 Ra6 Bd5+ Kg7 Qf2 Qg6 Re6 Kf7 Ree8+ Qe6 Qe2 Bg2+
1rq5/n3r3/5Bb1/PBBrb1b1/1QRN1p1k/1B2nr1N/3pNnq1/R1KR4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 h4 Kf6 a4 d5 e4 g5 c4 b5 c5 b3 a5 f3 c6 d3 c7 g4 h6 b2 h7 d4 h5 Kg5 e5 f5 h6 f2 e6 b4 e7 b3 e8N f4 Qf3 g3 Nd6 g2 Ra2 Ne7 Be2 f1Q Bd1 Nd5 Ne2 g1B Qe3 Qg2 Nb7 Be7 Nc3 b1R Bc2 b2 Ra1 Nc6 Qe4 Ra7 Bb3 Ne3 Nd1 Bf5 c8B Bg6 Bd7 Qc8 Nf2 Rd8 Nh3+ Kh4 h8R Bg5 h7 Bf2 Be8 Rd5 Nd8 Re7 Ne6 Na7 Rd1 Bg1 Bb5 Bf2 Ra3 Ra1 Rf8 b1R h8B Bg1 Ra4 Ra3 Bf6 Bf2 B3c4 Rab3 Ra1 Rc3 Ba3 Bg1 Bc6 Rb8 Bc5 Rcb3 Kc1 Ra3 B6b5 d2+ Kb2 Rd3 Bb3 Rc3 Rdc1 d1N+ Kb1 Nf2 Rd1 d3 Qb4 Rc2 N6d4 Rd2 Rc1 Rd1 Re8 Rf1 Re1 Nh1 Rf8 Rf3 Rd1 Bf2 Rf7 Be1 Rf8 Bc3 Kc1 Nf2 Re8 Rc7 Re4 Re7 Ne6 Be5 Rc4 Rg7 N6d4 Rf7 Kb1 Re7 Kc1 d2+
Nb1R4/3B1krn/N4P2/2n5/RNpRrn1q/1qB1qpBN/K4rb1/1Q3q2 w - - 0 1 illegal: No possible last move
7q/b1N1b2K/N2Rnppb/q1nR1N2/6P1/1q2rRr1/1Rb3BQ/2n1kB1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Be3 cxd4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 Kh4 Kf5 a5 e4 d3 c4 f3 e5 d5+ e6 g2 h3 Kg3 c5 Kf2 c6 d2 b6 d4 b7 a4 b5 d3 c7 a3 b6 a2 h4 Nd7 b8N Ngf6 h5 Nh7 h6 Ng5 h7 Nc5 b7 Ra3 Na6 Be7 b8R Re8 Ne2 g1B Qc2 d1Q h8R d2 R1h5 Qe1 Nbc3 d1Q Nd5 Qa5 Rf8 Ke1 Ng3 f2 Rb2 Qb1 Bg2 f1N Bh1 Bb7 c8B Nd2 Ndc7 Ndb3 Bg2 Bd5 Bb7 Nc1 Bf1 Bb3 Bh1 Ba4 Rh6 Rd3 Qh2 Qc2 Rab1 a1B Rb5 Qc4 R1b2 Bc2 Rf6 Qb3 Rh6 Na4 Rd5 Ba7 Bhg2 Nc5 Rg6 Bf6 e7 Nge6 Bh1 Bg5 Bhg2 Bh6 Rf6 Nf4 Rfd6 g6+ Kf6 Re3 Nf5 Nfe6 Bh1 Qa8 Bfg2 Rd8 e8B Rg3 Bb5 Re8 Bbf1 Re7 Rb8 Re8 Rb4 Re7 Rf4 Qh8+ Ng7 Nd8 Rf2 Ree3 Rf3 Nde6 Ke7 f6 Nf5 Bf8+ Kf7 Be7 Rb1 Be5 Rb2 Qh5 Kg8 Bf4 Bh3 Qh6 B3g2 Qf8+ Kh7 Bh6 Qg1 Qfb8 Qh2 Qh8+
2K5/1rQ5/1NN1PNB1/bq1BRp1q/bR3RnB/1N6/1krrq1bp/4n1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 a2 Qc2 f2 Bg5 h2 Be2 f1B Nf3 h3 Bh4 Bg2 Rf1 h1Q Ng5 Nh6 Rf4 Nd7+ Ke6 Ra7 b8R Rb7 g8B Bb4 e5 Ng4 Ne4 Ba5 Nf6 h2 Bf3 d2 Bf7 d1R Bg6 Qe1 Qc1 Kb3 c4 d3 c5 d2 c6 Qg1 c7 Qe8+ Kd6 Qf1 e6 Nc5 Qc4+ Kb2 Bd5 Bd7 c8N Nd3 Qc7 Ra7 b7 Ne1 Nb6 Qe2 Nc3 Ba4 Nb5 Rh7 Nd4 Q8b5 Nb3 Rf7 Rc1 a1Q Rc5 Rf8 Ke7 Rc1 Kd6 d1Q Ke7 Rf7+ Kd8 Rc2 Kc8 Rh7 Bf2 Rd7 Bh4 Qbc4 Rb5 Rd6 Rb4 Qb5 Ra8 Rd7 b8N Rb7 Nc6 Qac1 Rb8 Qce3 Rbe4 Qg1 Re5 Rd6 Be4 Rd4 Bd5 Rdd2 Ree4 Ne3 Nh7 Qh5 Nd7 Ra7 Nhf6 Qd3 Rb7 Q1e2 Rbb4 Rb7 Re5 Qb5 Nb6 Ng4
3rK2B/Qr3R2/1q1qpRn1/2pB2r1/bkb5/1P3q2/nbb2BBR/N3N1N1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 a4 b3 e6 b6 a3 f5 c3 b7 h3 f6 a2 f7 h4 d3 c2 g5 e3 g6 h2 g7 e2 Bg5 e1R Bd2 c1Q Na3 h3 Bc3 Na6 b8N Qd2 Nc6 Re5 Bg2 Rg5 Ne5 Rh7 Nc2 Ra7 Nef3 Rb7 Nfe1 Ne7 g8B Nb4 Ke4 Kc5 d4+ Kb5 d5 c5 d6 Bg7 f8R Bd7 Rf6 Ng6 Bd4 Ka5 Bf2 Ba4 d7 Qb6 d8B Qd6 Rb1 Bh8 Na1 Rhd7 Bh7 Kb5 Rf7 Bb2 Bf6 Ka5 Bh8 Kb5 Nac2 a1Q Qh5 Qa3 Na1 Na2 Qh6 Kb4 Qg7 Bb5 Rd1 Bc4 Rd3 Qaa7 Rdf3 Qa8 R3f6 Nf4 Bf5 Ng6 Kf3 Qaf8 Be4 Qa8 Bd5 Qaf8 Ke4 Qa8 Ngf3 Qaf8 Rf1 h1B Ng1 h2 Bh4 Qg3 R1f2 Qfd6 Rd2 Qh3 Bf2 Qh5 Qf8 Qh3 Qb8 Qh5 Qa7 Qh3 Bf3 Bg2 Re2 h1B Rc2 Bgf1 Bg2 Qh5 Rd2 Bfd3+ Ke3 Qe5+ Bge4 Qbc7 Bc6 Qc8 Bh4 Qcb8 Rh2 Qd8 Bf2 Qd5 Bf3 Qb6 Be4 Nf8 Kf4 Bc2 Bf3 Bb5 Be4 Ba4 Bf3 Bg2 Be4 Bf1 Bg2 Qd3 Bce4 Qd5 Bef3 Qdc6 Bd5 Bc4 Rf5 Nc3 Ke5 Ng6+ Kf6 Qf3 Kg7 Na2+ Rf6 Qd6 Kg8 Ne7+ Kf8 Ng6+ Ke8 Rd8#
b1k2B1n/R1q3r1/K2p4/NQ1B4/5bqB/q1P1pR2/NbnnN1BR/6rq w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 h5 b4 e5 g4 d3 Kc3 h3 Kc4 e3 g5 d2 f5 d6 g6 Kd7 b6 e2 Kb5 e1N b7 h2 g7 e4 f6 a4 f7 a3 c3 a2 Qe2 d1Q Qd3 e3 Nf3 h4 Nd4 h3 Nd2 Qc7 Bg2 Qg4 Ne2 Nf3 Nc4 Ne7 g8B Nd2 Qb1 Rh7 Na5 Nbc6 b8R Bh6 f8B Rg7 B8d5 Ng6 Rf1 h1Q Rf3 h2 Qd3 Nc4 Bd2 Qc1 Be1 h1Q Bh4 Bf4 Rb7 Nd2 Ra7 Qb2 Rc1 a1B Rc2 Bb7 Qc4 Nd8 Qd3 Bc6+ Ka6 Nh8 b5 Kc8 b6 Ne6 Qb5 Qa3 Rb2 Nd4 b7+ Kd7 b8N+ Kc8 Ra2 Nc2 Rb2 Bd7 Ra2 Bb2 Nc6 Rb8 Nb4 Bc6 Ra1 Ba8 Na2 Qh2 Rh1 Qg1 Rh2 Qh1 Qc4 Rb5 Bg8 Rbg5 Bd5 Qe6 Qb3 Rg3 Qb5 Qg4 Bh3 Rg1 Bf1 Qf5 Bg2 Qg4
k7/B3N3/1rrpN3/Bpq2K2/2n3B1/R1b1rRN1/2rPnQ1q/1b1nR1Nb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 axb5 exf4 b6 c6 b5 cxb5 Kf2 h5 Kf3 f5 g4 a5 e4 a4 c4 d6 g5 Kd7 g6 Kc6 c5 Kb7 e5 a3 e6 a2 e7 h3 e8R h2 g7 h4 Re5 h3 Qc2 Nc6 Re2 Ra3+ Qd3 Qg5 Qc3 Nh6 g8N Na5 c6+ Ka8 c7 Ng4 Bg2 Ne3 Qg7 Nd1+ Qc3 Nc4 Nh6 Bg7 Qe3 Bc3 Bf1 Be6 Qc5 Rb8 c8N Bf7 Qd4 Bg6 Ne7 Rc8 Re1 Rc6 Qf2 Ra6 Ke2 f3+ Kd3 f4+ Nhf5 Qh5 Ke4 Ra3 Qe2 f2 Bb2 f3 Kf4 Ra6 Ng7 Qc5 Ne6 Bd3 Bg2 f1N Qf2 Ng3 Kg4 Ne2 b7+ Ka7 b8B+ Ka8 Ba7 Rab6 Ba3 Bh7 Bb4 Bg6 Qe3 f2 Ba5 f1R Bf3 Bf5+ Kg5 Rf2 Bh5 Rf3 Qf2 Re3 Bg4 Ne5 Nf3 Nc4 Rhf1 h1Q Ng1 h2 Ng8 Bb4 Nc3 Bb1+ Kf6 Qg2 Ne4 h1B Ng3 Qh2 Ne7 Bbe4 Rc1 a1R Rc3 Ra2 Ra3 Bf5 Kg5 Bb1+ Kf6 Rc2 Kg6 Qd4 Kf5 Qc3 Qg2 Qd4 Rf3 Bc3 Qf2 Qc5+
1r1qB1Q1/2b1rq1r/BP1RR2R/B1N3n1/4b1n1/q1Brpp2/1K2N1N1/3kn3 w - - 0 1 illegal: No proof kernel
k2NRBQ1/4R1qn/nP3B1b/3n4/b3rp2/1qrp1NRq/1rN5/1KBB1n2 w - - 0 1 illegal: No possible last move, all moves rejected
5rn1/1n2rR1p/4QN1B/pkBK3q/q1R3N1/2bB1PbB/2bnr1n1/4N2R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 g4 Kd7 b4 a5 c4 e5 c5 d3 Ke3 h3 f3 d4+ Kd2 h2 b6 Kc6 b7 Qh4 g5 Nd7 b8B Bg7 g6 Ra7 Qb3 Qh5 Qe6+ Kb5 c6 Nc5 c7 Nb7 Ra4 Bd7 c8B e3+ Ke1 e2 Kd2 e1R Bd6 e4 Nh3 Be5 g7 Bg3 Nf2 Be8 Bc5 Bg6 Ng4 Re2+ Kd1 d2 Kc2 d1N+ Kb3 d3 Bh6 d2 Bh3 Nf6 g8N Ne3 Kc3 d1N+ Kd4 Nc4 Bf1 e3 Bh3 Nd5 N8f6 Ne7 Bf1 Ng8 Bh3 Qh4 Kd5 Bc2 Bf1 Rg2 Bd3 e2 Kd4 e1B Kd5 Ra6 Bd7+ Rc6 Bc8 Re2 Na3+ Ka6 Bd7 Bc3 Bc8 Bb1 Nc2 Kb5 Ne1 Bc2 Ra1 Rc7 Rc1 Ka4 b5 Nd2 b6 Re7 Rf1 h1Q Rg1 Nd8 b7 Q1h3 b8R Nb7 Rh1 Ne3+ Kc6 Ng2 Kd5 Nd8 Rb7 Qh5+ Qe5 Q3h4 Rc7 Nb7 Bcf5 Re6 Rf7 Re8 Qe6 Re7 Ne5 Qf4 Bh3 Qb4 Bdf5 Kb5 Neg4 Bd1 Rc2 Qa4 Rc1 Bb4 Rc3 Bc2 Rc4 Bc3 Bf4 Nh6 Bg5 Rf8 Bd3 Bge5 Bf4 Ng8 Bh6 Bg3+
5r1R/3NRBpK/rb3BR1/2r1Rb2/N1PN3B/n2qq2Q/1b1k1nqp/3r4 w - - 0 1 illegal: No proof kernel
n1qr4/r2nP1B1/3qRq2/1pb2KB1/B2Q3r/NR1N1nR1/1pq4N/k2b2B1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 h5 a4 b5 a5 c5 g5 f5+ Ke5 f3 a6 f2 a7 f4 g6 b3 g7 f3 d6 h3 d5 h4 d7 h2 d6 b2 Kf4 h3 Be3 Na6 Qd2 Kb3 Qd4 c4 Na3 c3 Kf5 c2 Re1 Nf6 g8R Ka2 Rg3 c1Q Bh6 Bb7 e4 Qdc8 e5 Nc7 e6 Ka1 d8B Nd7 Bc4 f1N Bg7 f2 Bg5 Bf3 Bb3 Nd2 Ba4 Bd1 Nf3 f1Q Re3 Qe2 Re1 h1Q Rb3 Qc6 Nh2 Nf3 Be3 Rh4 Bg1 Qec2+ Re4 Rb8 a8N Be7 Nb6 Na8 Nd5 Bf8 Nf1 h2 Nf4 Rb7 Nd3 Ra7 Re3 Rh8 Re1 Be7 Re3 Rd8 Re1 Ndb6 d7 Bc5 Re5 Qd6 Re3 Qhg2 Re1 h1R Nh2 Qgd2 Re5 Qh6 Re2 Rg8 d8B Nd7 Bg5 Rh8 e7 Rd8 Nf1 Rh3 Re6 Rh4 Nh2 Qf6+
1BB2b2/Rrp2Bk1/P2p2qR/qq1n4/1b1r3R/1RnN2Nb/2rQ1r2/NK6 w - - 0 1 illegal: No proof kernel
1rNR1n1K/bBp1RnPb/3BbB1N/p2bR1r1/r5QN/8/2q2kq1/5B1q w - - 0 1 illegal: No possible last move
B5bk/1pQ1r1n1/PR2N1q1/2bB4/rBRr2pb/3rN3/1R1qK3/BNnn4 w - - 0 1 illegal: No possible last move
NBq1Q3/1pB1rP2/R4B2/qb1brnr1/r2N1N1R/p4Bk1/KnR5/4b1q1 w - - 0 1 illegal: No proof kernel
2RRr1b1/B7/1Q1Nnn1N/1KRb4/BN1q1pPb/Rb1r1p2/nb1k4/1B4b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 Ke2 Ke5 g4 Kd4 e5 h5 b6 c5 e6 a5 b7 f5 e7 a4 e8B h3 d3 h4 b5 c3 b6 c2 Ba3 c1B Bb4 a3 Bd7 a2 Bc6 c4 Qc2 h2 Qb3 c3 Ba4 c2 Nc3 h3 Ne4 Nf6 Nd6 Nc6 b8R Bb2 b7 Be6 Rc8 Be7 b8N Bg8 Na6 c1N+ Kd2 Qd7 Kc2 Ke3 Nf3 Rh6 Ne5 Nd8 Nef7 Ne6 Bc5+ Bd4 Rg1 h1B Nb4 h2 Ba7 Rh3 Nh6 Bd5 Be2 Bb6 Kc3 h1B d4 Bed8 Qb1 Bb3 Bd3 Bhd5 Qb2 Be7 Bb1 Rg3 Rc5 Re8 Rg2 Bed8 Rc2 Qg7 Nc6 Qd7 Kb4 Kd3 Kb5 Re3 Kb4 f3 Kb5 f4 R2c4+ Bc2 Qb3+ Kd2 Rc3 Qg7 Nb4 Rd3 Rc8 Nh5 R3c4 Bh4 R4c5 Nf6 Qb2 Ba8 d5 Qd7+ R5c6 Bg1 Qd4 Bb3 Qb6 Qd8 Rc5 Bb7 Ndf5 Ba8 d6 Bad5 d7 Qe7 d8R Qd6 Bc2 Qe5 Nd6 Qd4 Rb1 a1B Rb2 Nd7 Ra2 Bb2 Bb1 Nf6 Ra3 Na2
7n/R5b1/b3krqr/1N1N1r2/5RnR/Bp1n1QB1/R3PpBn/nN4rK w - - 0 1 illegal: No possible last move, all moves rejected
3NQnqr/3B2B1/4N3/B1NrKR2/1r2Pn2/k6p/b1n1r1pr/BR1Rn1b1 w - - 0 1 illegal: No proof kernel
1n1r3B/1R1R2RN/nbrP1b1p/1rq3p1/K1NR1Q2/r6b/3b2B1/1kBb3N w - - 0 1 illegal: No proof kernel
BrR1B2k/1PQR4/1n1pbbn1/8/1Knn3q/Bp1rN1rr/rN3RN1/7N w - - 0 1 illegal: No proof kernel
1r3B2/PR1N3N/B1qR2rb/4nn1p/p3n3/Kr1N2r1/2R1n1nk/R2QB2b w - - 0 1 illegal: No proof kernel
2n1r3/pBN1B1qr/n2b4/1Q4P1/n3n1B1/1R1pr2R/kNb1B2r/4KRnN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 b4 f5 g4 h5 g5 d3 b6 f3 b7 f4 b5 Kc5 e5 Kb4 c5 d5 c6 f2+ Kd2 h3 b6 h2 e6 f3 e7 d4 e8B h4 c7 h3 Be2 f1R Na3 f2 Bf7 Ne7 Ra2 Re1 Bc4 Qd7 Bf7 Na6 b8R Rh7 Bf3 Re3 Be2 f1N+ Ke1 Nd2 b7 Ne4 Bd5 Kc3 Nc4 d2+ Kf1 d3 Qa4 d1N Ke1 Nb2 Qb5 Na4 Nb2 Kc2 Be6 Kb1 Bg4 Qd4 Bd2 Qg7 Bb4 Be6 c8B Bb3 Ra3 Bc2 Rb3 Ka2 Ba3 Nf5 Be7 Nfd6 Bcd7 N6c5 Bc6 Na6 Re8 Nc8 b8N Nd2 Bb7 Ne4 Nd7 Rb8 Nb6 Ra8 Nd5 Rb8 Bb4 Bd6 Nc7 Ra8 Rh8 Rb8 Nf3 Ra8 Rg1 h1N Nh4 h2 Rf1 Nhf2 Nf5 h1R Ng3 R1h2 Nh1 Nh3 Bc5 Ng1 Bb4 Bf4 Be7 Bd6 Rhf8 Ncb6 R8f3 Re8 Rh3 Nc8
NBr5/2bR1R1K/nN1NbnP1/1Nrq3R/p1r2b2/1Q4n1/1p4b1/1nk1BB2 w - - 0 1 illegal: No proof kernel
B1b5/2Knqr1P/pb2bNn1/3bR3/1N2nRN1/B2pQr2/6n1/R1rkBB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 e4 d5+ Kb3 f5 Ka4 g5 h4 d3 b4 Kd4 c4 a6 h5 g3 e5 g2 c5 g4 b6 f3 Ka5 g3 c6 d2 h6 Ke3 e6 f4 h7 d4 b5 f2 e7 f3 e8N d3 c7 Ra7 b7 Nf6 Kb6 Qe7 Nd6 Ne4 Nh3 g1R Nc3 g2 Ba3 Nd7+ Kc6 Rg8 b8R Rg3 b6 Rb7 Qb1 d1B Na2 Kd2 Ne8 Bb3 Nf6 Be6 Qe1+ Kc2 Qe3 Ra7 Bc1 Kd1 Nb4 Rb7 Rh2 Rh1 Ra8 g1N Rg2 Ra7 b7 Ne2 b8B Nf4 Rg1 Ng6 Ra4 Qd8 Ba3 Bc5 Ra5 Qe7 Rb5 Bd4 Re5 Rb7 Ba7 Bc5 Bb6 Ra7 Ba5 Rb7 Na2 Ra7 Be1 Rb7 Nb4 Ra7 Bg2 f1B Rb8 Be2 Bf1 f2 Rb5 Bh5 Rf5 Rf3 Rf4 Bd4 Re5 Bc5 Ng5 Bhg4 Nf7 Bb3 Nh6 Bge6 Nhg4 Rb7 Bh3 f1N Bg2 Nfg3 Bf1 Nf5 Rg2 Nfh4 Rf2 Rh2 Ra2 Rc2 Ra1+ Rc1 Bg2 Ndf8 Bf1 Ng2 Qf2 Bf5 Qe3 Bce6 c8B Nd7 Ra2 Ra7 Bb7 Bbd5+ Kc7 Ra8 Nh6 Rf8 Ba8 Rf7 Nhg4 Nb6+ Kb8 Bc8 Ra1 Nd7+ Kc7 Bfe6 Ref5 Ng3 Rh5 Ne4 Re5 Bb6#
Bbr5/Q1n1p1B1/1p2PR1B/r2Bb3/1nq1N1N1/3R1b1k/N3Rr1b/2Knn3 w - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 c4 f6 g5 fxg5 cxd5 gxh4 Qb3 h3 Qc2 Bd7 Qd1 Bc8 e4 Kf7 a4 Kg6 d4 c5 Kd2 Kg5 f4+ Kh4 a5 h5 f5 g5 e5 b3 f6 b2 f7 g4 e6 h2 d6 c4 d5 b6 a6 g3 d7 c3+ Kc2 g2 d6 Bb7 a7 Na6 Na3 b1R Qd2 Bf3 Nc4 Qc8 d8N Nc7 d7 Rb2+ Kd3 c2 Ke3 Nf6 Nd6 Bg7 Ne2 Kh3 f8B h4 Qa5 Nfd5+ Kd2 Nb4 N8f7 Be5 d8R Qa6 Ra3 Qc4 Nh6 Ra2 Rg1 h1N Nc3 Nf2 Bg7 Nfd3 Ng4 Ne1 Rf8 Rc8 a8B Rh5 Be2 Rb2 Rf1 g1B Rf6 Bgh2 Qa7 Ra2 Rb3 Ra5 Rh1 Rf5 Na2 Rf4 Rd3 Rf5 Bb2 c1B+ Kd1 Be3 Bh6 B3f4 Ne4 Bd6 Rg1 Rfe5 Ra3 Qd5+ Rd3 Nb5 Rd2 Bhg3 Rd4 Bb8 Nc1 Nc7 Nd6 Re4 Rh1+ Kg2 Rf5 h3 Na2 h2 Ba1 Re3 Ne4 Kh3 Kc1 Bd6 Ba6 Re2 Rd3 Qc4+ Bc3 Rd2 B6b7 Bgf4 Rg1 h1N Bd5 Bh2 Rg2 Nf2 Rf7 Nd1 Rf8 Qb3 Bcg7 Bde5 Rf6 Rb2 Re2 Rd2 Ree3 Rf2 Re2 Qc4+
nb1q2K1/B4bb1/1b1r3k/n2pR3/1rp1r2N/QR1rRNNq/2P2B2/6BB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 e5 h4 exd4 Qd3 g5 Qd1 gxh4 Kd2 Kf7 g4 Kg7 b4 c5 f4 a5 f5 h5 b6 d5 b5 h3 f6+ Kh6 b7 h2 b6 e3+ Kd3 a4 f7 h4 Qe2 a3 Bg2 a2 Nd2 h3 Qf3 e2 Rb1 a1B Rb3 e1B Ne2 Ra4 Ng3 Nc6 b8B Bg7 f8N Nge7 b7 Bf2 Ba7 Bd7 b8B Na5 Re1 h1Q Re5 h2 Ng6 Be8 Nh4 Nc8 Bb2 Nb6 g5+ Kh7 g6+ Kh6 Bc7 Na8 Bcb6 Rb4 Qf8 Be3 Ndf3 Bf4 Re3 Bb8 Bc3 Bb2 Be1 Bc3 Bf2 c4+ Ke2 Rg8 Re5 d3+ Ke3 d2 Kf4 d1R Kf5 Re1 Ke6 Re4 Bbc5 Qf1 Bh1 Bd4 Qd6 Rf8 Re3 Rf7 Bg1 Rd7 Qa6 Bf6 g7 Qd3 g8R Bg7 Bf2 Qf1 Rf8 Qh3+ Rf5 Nb3 Qa3 Na5 Be7 Bb6 Bc5 Rd4 Rb3 Rd2 Ree3 Rd3 Bg2 h1R Bd4 Rc1 Bh1 Rcd1 Bc5 Rd4 Bg1 Rg4 Rfe5 Rd3 Bd4 Qc8 Bf2 Rd6+ Ke7 Re4 Bg1 Bb5 Kf7 Be8+ Kg8 Qc7 Re2 Qcd7 Bdf2 Qd8 Re3 Bf7+
rN2QN2/NkBN2b1/b2P2Rp/1p2q3/2r3nK/1R4rB/3br2b/B3nq1R w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kd7 Kf2 c5 d4 Kc7 a4 e5 g4 b3 g5 h3 Kg3 h6 a5 b2 f5 e3 a6 c4 g6 h2 f6 e2 f7 e1R a7 e4 g7 c3 Qa4 c2 Ra3 e3 Ne2 Nc6 Bd2 c1B Bc3 Ne5 Rb3 Nf3 Qe8 Nf6 g8R Bg7 f8N Bd2 Bh3 Ng4 Na3 b1Q Ba1 Qf6 Nb5+ Kb6 d6 Qe5+ Nf4 e2 d5 Rc1 d7 Rc4 d6 Qf1 d8B+ Ka6 Ba5 Ne1 Kh4 b6 Nd3 Kb7 Nb4 Bf4 Nd4 b5 Ndc6 Rh7 Na6 Bd2 Rg1 h1R Nab8 Rh2 Bc7 Bf4 Rh1 Rf2 Nbd7 Bh2 Ncb8 Rg2 Rb1 Rg3 Rb3 Bh8 Rg5 Re7 Rg6 Bg7 Nc6 Rb8 a8N Re6 Nab6 Ra8 Na4 Nd3 Ncb8 e1B Nab6 Bd2 Nd5 Ne1 Ne7 Qd5 Nec6 Re2 Na7 Qd4 Rg5 Qe5 Rg6 Qg1 Nb6 Qf1 Nbc6 Ka6 Nb8+ Ka5 Bd8 Ba6 N6d7+ Rc7 Nc5 Kb6 Ncd7+ Kb7 Nbc6 Rc3 Ncb8 R7c4 Bc7 Rg3
3B1Rqr/2KN1br1/2pnq1k1/N1b1b3/1PB3BR/r1R2bpN/nQ2r1N1/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 e4 a5 d4 f5 h4 Kf7 h5 c6 b6 f3 Kg3 f2 d5 c3 d6 c2 d7 a4 e5 a3 b7 a2 h6 Kg6 h7 Nh6 e6 Na6 b8N Nf7 e7 Nd6 Nd2 Nb4 Nh3 Ra3+ Nb3 Qe8 d8N Be6 Bf4 c1Q Bc4 f1B Qd2 Bf7 Nd7 Bg2 Ne6 Bf3 Na5 Qe1+ Qf2 Qb8 Rc1 a1B e8B Na2 b4 Be5 Rc3 Qe4 Qb2 Qd5 Nd4 Qe6 Nc2 Qa8 Ne1 Qd8 Kf2 g3+ Ke3 g4 Bg5 g2 Rh2 g1R Ng2 Qb8 Bd8 f4+ Kd3 g3 Rh1 Re1 Rf1 Rg8 h8R Rg7 Rh1 Be7 Rf8 Re2 Rh2 Bg4 Rh1 f3 Rh2 f2 Rh1 Bf4 Kd4 f1R Kc5 Bf3 Rh2 Qa8 Kb6 Be5 Kc7 Rc1 Nb8 Rd1 Bd7 Rd4 Bc8 Rh4 Nd7 Rh8 Nf6 Qd5 Bg4 Qe6 Nd7 Bg5 Nf2 Be3 Rh4 B3d4 Nh3 Bc5 Be7 Qe8 Bd8 Bg8 Rf5 Bf7 Rf4 Qg8 Rf5 Be8 Rf8 Bf7
1b1R3R/BbB1B3/P4n1Q/2nnpR2/3rp3/2b1qNbB/4kqKN/2n1N2r w - - 0 1 illegal: No possible last move
1rR4Q/4p2p/bn1Rr2r/qN1N1RP1/Rq1qnrB1/2BK1B1q/1N6/5kb1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 Kg5 b4 Kf4 b6 a5 b5 d5 c5 d3 f3 Kg3 g5 Kf2 f4 d4 c6 h3 b7 h2 c7 a4 f5 a3 b6 a2 f6 Qd7 f7 Qh3 Ne2 Ra4 Qb3 Nf6 Bg2 Bg7 f8R Nd7 b8R Ba6 b7 Nb6 Rd1 h1R c8B Re1 Bf3 Kf1 Bb2 e3+ Kc1 d2+ Kc2 Ne4 Rf5 Rf8 Nf4 e2 Bc3 Rd8 Qg8 d3+ Kb3 Re8 Nd5 Bd4 Na3 Bg1 Qh8 Rd4 Nc4 Rf8 Rab1 a1Q Nb2 Qa5 Ra1 Rf6 Ra8 Rh6 b8N Rc4 Be6 Rc8 Nc6 Rb8 Na7 Qb4+ Ka2 Qa5+ Kb1 Qb4 Rc1 d1Q Nb5 d2 Ra4 Qa5 Rd4 Qda4 Bd7 Q4b4 Kc2 Rd1 Be6 e1R Kd3 Re2 Ra1 Rc1 Ra4 d1Q+ Bd2 Rc7 Bd7 Qa1 Bc3 Rcb7 Be6 Rf8 Rc8 Rb8 Re5 Rf4 Bg4 Ng3 Rf5 Ree6 Nc7 Ne4 Rd6 Qc1 Nd5 Qe3+ Kc2 Qec5 Kd3 Qcd4+
N1q1B1R1/p4N1k/r1qBK1RP/6b1/1B3q2/1N5p/rb1N1Qbn/1bnq3R w - - 0 1 illegal: No proof kernel
R2Qr1nB/qp3N2/BbR3pb/3R2Nr/N3NqP1/2rb4/k3qBb1/b5K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 d4 fxe4 h5 c5 Be2 cxd4 Ba6 Nc6 Bf1 Ne5 Kd2 Ng6 Ke1 Nh4 h6 g6 Ba6 Nf5 Bf1 Ng7 hxg7 Ra3 Qd2 Ra5 Qd1 Ra8 g4 Kf7 a4 Ke6 c4 d5 f4 h5 Kf2 d3 a5 e3+ Kg2 d4 a6 h4 a7 h3+ Kh2 e2 c5 Kd5 f5 Kc4 c6 e1B f6 e5 f7 b3 c7 e4 Bf4 b2 Bc1 e3 Ra5 e2 Ra2 d2 Ra5 d3 Rg5 Bf5 c8N Qa5 Nc3 b1Q Ba3 Bf2 Bb2 e1B Qe2 Kb3 Qe8 d1R Ne4 d2 Nb6 Rh5 Qd8 Ka2 Nf3 Qc1 Na4 Bb6 Ba6 Qc7+ Be5 Rc1 Rf1 Rb8 a8R d1Q Kh1 Rc5 Kg1 Bc3 Re1 Qd3 Rc1 Qe2 Bd4 Bb2 Bf2 Ba1 Rc3 Qf4 Rc1 Nf6 g8N Bh6 f8B Rc3 Bg7 Qc5 Bh8 h2+ Kg2 h1B+ Kg1 Rh4 Rh5 Bg2 Nfg5 Qa5 Qd1 Re8 Qd8 Rg3 Rc6 Rc3 Nec5 Bd3 Nce4 Bg7 Nh6 Ng8 Nhf7 Bh6 Nf3 Qc5 Rd5 Rh5 N3g5 Qa5 Bb5 Qa7 Bc4+ Kb1 Ba6 Ka2
4BrN1/nn2p1Q1/1B1N1qr1/r3N3/3p1B2/RbR1PNn1/2q5/KrknR1r1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Qd3 Bh6 Qd2 fxg4 Qd1 g3 Bd2 g4 Bc1 Bg5 hxg5 Kf8 Nd2 Kf7 Nb1 Ke8 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 Ke4 Kb2 h5 a4 b5 g6 d5 c5 h4 f5 g2 e3 h3 f6 b3 a5 g3 a6 b4 a7 h2 g7 d3 f7 d2 f8B d4 c6 Nf6 g8R Qb6 c7 Nfd7 Rg6 Nc5 Ra2 Nc6 Bh6 Nb7 Na3 Rf8 Ka1 Be6 Nf3 g1R c8N g2 Nc4 Bg8 Qe1 d1N Ba3 Bf7 Bf4 b2+ Kb1 Bd5 Nce5 Bb3 Bb5 Qa6 Qg3 Qb6 Nc4 Kd3 N8d6 Qa6 Nce5+ Kc3 Ne1 Kd2 Ba4 Qf1 Rh6 Qf2 Qg7 Qh4 Rh8 Qf6 Rg8 Rad8 a8N Na7 Ra1 Rc8 Nb6 Rc5 Be8 Ra5 N5d3 Rf1 Nd7 g1R Rh8 Rg6 N3e5 Rf2 Rf1 h1N Rg8 Ng3 N1f3+ Kc3 Re1 Rg2 Nef7 Rg1 Nh6 Kd3 Nde5+ Kc3 Nh2 Kd2 Rh8 Bc2+ Ka2 b1R Ng8 Rb3 Rc1 Rb2+ Ka1 Ba4 Rc7 b3 Bc5 Kc1 Nhf3 Rc2 Bb6 b2+ Ka2 b1Q+ Ka3 Qb5 Rc3 Qf1 Rh2 Qh3 Rd2 Qh2 Rdd3 Qh7 Rc4 Bb3+ Ra4 Rh2 Rc3+ Bc2 Ka2 Re2 Rca3 Bb3+ Ka1 Rb2 Rb4 Qh2 Rc4+ Qc2 Rc3 Rb1#
1bR4K/2NQ3N/RrBBr3/p2r2bk/1n4N1/bnRpb1r1/PB6/bb2N3 w - - 0 1 legal: proof: d4 f5 c4 e5 c5 exd4 c6 bxc6 Qb3 c5 Qd1 c4 g4 g5 h4 fxg4 Bh3 g3 Bg2 g4 Bf1 Qg5 hxg5 Be7 Bh3 Bd6 Bf1 Bf8 Kd2 Kf7 e4 Kg6 b4 a5 f4 d5 e5 c5 b5 h5 b6 h4 f5+ Kh5 b7 g2 g6 d3 Kc3 h3 e6 d4+ Kd2 h2 e7 c3+ Ke1 c4 Kf2 c2 Kg3 d2 Kf4 c3 Ke5 Nh6 Kf6 Na6 b8N Nb4 e8R Bd6 Kg7 Rg8+ Kh7 Ra6 f6 Nf5 f7 Rb6 Na6 Bb8 Nf3 g1B f8B g3 g7 g2 Nc7 Be3 Bb5 g1B Bb2 c1B Bc6 c2 Nc3 Bg5 Ne4 B1e3 Rg1 h1R Bd6 Bf6 Rg2 Re1 Rg6 Beg5 Nf2 Re6 Rf8 Ba6 Rd8 Bd3 Ng4 Be5 Ne1 Bef6 Bc3 Ba3 Rc8 c1B Bb2 Bb1 Qa4 d1R Qb5 Rge8 g8N Bce3 Qd5 Be5 Rf6 d3 Kh8 Nd4 Qb5 Rd8 Qd5 Bc2 Rc1 Bb1 Rc3 Nb3 Qb5 B5d4 Qf5 Rd2 Qd5 Rg2 Qf5 Re5 Qd7 Rg3 Re6 Re8 Rg6 R8e6 N8f6+ Kh4 Nh7 Rd5+ Rf6 Kh5 Rc2 Nd2 Bc5 Red6 Bc3 Bh6 Bb5 Nb3 Ba1 Bdb2 Rc3 Bhg5 Ba4 Rb5 Rg6 Re6 Bf8 Ree5 Ra6 Rb6 Bd6 Re6 Bc6 Bbc1 Rc2 Bcd2 Bg7 Bc3 Rc1 Ba1 Bb2 Bh4 Rc3 Bhg5
k3bKRb/3rRr2/2N1QnB1/p2p4/5B2/rB1P1N2/n1Rrn2N/bR2b1n1 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 c5 bxa4 b5 Qe7 Rh2 Qd6 Rh1 Qb6 cxb6 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Kd8 Kf3 h5 Ke4 d5+ Ke5 c5 e4 f5 g4 c4 b7 Kc7 d3 f3 g5 f4 g6 h3 g7 c3 Qd2 h2 Be2 a3 Qb2 f2 Be3 f1R Qc1 f3 Bd2 f2 Bf4 a2 Qd2 c2 Qe3 c1B Nh3 h4 Rg1 h1R Nc3 Bb2 Rc1 a1B Rc2 Na6 b8R Bb4 Bd1 Rh2 Ng5 h3 Nf3 Bd7 Re8 Kb7 b6 Nf6 g8R Rh7 Re7 Ba5 Kd6 Nb4 e5 Na2 Nb5 Be1 e6 a6 Nc7 Be8 Nb5+ Kb8 b7 Rg2 Rh1 h2 Rg1 h1N Nbd4 Ng3 Nh2 Ne2 Ndf3 Rf7 Rh1 Ng1 Qe4 a5 Qf5 Ka7 Qg4 Rc8 b8N+ Ka8 Nc6 Rc7 Qf5 Bd2 Nce5 Nh5 Rc5 Nb4 Ng5 Nf3 Nc6 Bh8 Qf6 Bd4 Bb3 Ra1 Rd7 f1N e7 Ra3 Qe6 Na2 Rc2 Nfg3 Rb1 Ng1 Ngf3 Ra7 Rb7 Be1 Rd7 Rd2 Rb7 N3e2 Rc7 Rf8 Rd7 Bf7 e8B Nf6 Ke7 Bh5 Bf7 Rd8 Be8 Ba1 Kf8 Rc7 Rd6 Rg7 Rd7 Bg6 Re7 Rd7 Bf7 Bh5 Bg6 Rh7 Bf5 Be8 Bg6 Rf7+
B1B4R/BBn1bN1p/r1q1Np1N/1Rr3Q1/1nrpbP2/b5qk/5K2/6Rq w - - 0 1 legal: proof: d4 b5 b4 c5 h4 g5 a4 gxh4 d5 cxb4 axb5 e6 Qd3 exd5 Qd1 d4 e4 Ke7 g4 Ke6 c4 d5 f4 a5 g5 a4 e5 Kf5 e6 h3 g6 f6 g7 b3 b6 h2 c5 b2 b7 a3 e7 d3 e8B a2 c6 d2+ Kf2 d4 c7 Ra6 Na3 b1Q Nh3 Qb3 Ng5 Qd7 Nf7 Nc6 b8R Nge7 g8N Nb4 Nb5 Bb7 c8B Be4 Ba3 Ned5 Rb1 a1B Rg1 h1Q Bg2 Be7 Nc7 Bb2 Ne6 Nc7 Bf3 Qb5 Bc6 Q5a4 Ba8 Qc6 Qf1 d1R Qg2 Rc1 Qg7 Rc4 Qh6 Na2 Bc5 Nb4 Ba7 Ba3 Bg2 Kg4 Qg7+ Kh4 Ngh6 Qc3 Bf3 Kh3 Qg5 Nc2 R1b5 Nb4 Bab7 Rg8 Bd7 Rg6 Rh8 Rg8 Bdc8 Rd8 Rc1 Rd5 Rf1 Rdc5 Rg1 Bd3 Bd5 Be4 Ba8 Qe8 Bdb7 Qc6 Nd6 Qd3 Ndf7 Qg3+
3rb3/n4pKR/q3pb1n/B1BrqN1R/3QBN2/1RNP1p2/nB6/q2b1k2 w - - 0 1 illegal: No possible last move, all moves rejected
5K2/1R1p4/3RpNPB/2r3qQ/3N1Rb1/1q1Bp1kB/1qnnnb2/N2br1B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 a5 c4 h5 b4 h3 b6 h2 f5+ Kg5 c5 Kf4 f6 a4 b7 d3 Kc3+ d2 Kd4 e6 b5 a3 b6 a2 g5 h4 c6 h3 g6 Qe8 f7 Ra5 c7 Rh6 Na3 Nf6 Nc2 Kg3 Qh5 d1B Nf3 Bc5+ Ke5 Na6 b8R Bf2+ Kd6 Bb7 f8N Qd8 c8B Rc5 Nfd4 Nb4 Nh7 Bg4 Bg5 e3 Rd1 Bbf3 Na1 Nc2 b7 Be2 Rd2 Bd1 Bd3 Qa5 Ke7 Ne4 Rf1 h1Q Kf8 h2 Nf6 Rh7 Bh6 Qb4 Ra8 Qb3 Ra7 Qf3 b8B+ Qf4 Bb7 h1N Bd5 Qe5 Rb7 Qf4 Re2 Nd2 Bg2 Qe5 Bh3 Qf4 Ba7 Qg5 Bb6 Kh2 Ba7 Ng3 Ree1 Ne2 Bb8+ Bg3 Rf4 Bf2 Rf1 Kg3 Rf5+ Qf4 Rd5 Qe5 Rd6 Qg5 Bc7 Na3 Nac2 a1Q Bb8 Qab1 Na1 Q1b2 Bc7 Nc2 Bb8 Bg1 Rf4 Bf2 Bg2 Nc4 Rc6 Rd5 Bg7 Nb4 Rf5+ Rd6 Qh1 Nc2 Bf1 Nd2 Qd5 Rh1 Bh3 Kh2 Bh6 Qh4 Rf3 Re1 Qh5 Qg5 Rf5 Kg1 Bc7 Rd5 Bh2+ Kh1 Rf4 Rc5 Rd6 Bf5 Bg4 Kg2 Bg1 Kg3 Bh3 Bg4
R4B1R/2p2N1B/P2qq3/Nk3qnK/1b1bp3/2QN3p/1rbBRB1r/1r3n2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 a4 h5 d4 b5 f4 e5 g4 b3 d6 Kc6 f5 b4 g5 h3 d7 b2 d5+ Kb6 f6 e3 Kf3 h2 f7 b3 g6 h4 Kg4 e2 a5+ Kb5 a6 Bc5 f8B Ne7 d6 Bd4 g7 Nd5 g8R Nc6 Nf3 Rb8 Nbd2 b1Q Ne1 b2 Nd3 e1B Nb3 Bb4 Bd2 Rb6 Ra2 Ne3+ Kh3 Qe7 Qc1 Nd8 Qc3 Ne6 d8B Rh7 d7 Qd6 Bg2 Nf1 Kg4 Ng5 Na5 Qe1 Be4 b1R Bf5 Bb7 Bde7 Be4 d8N Rb2 Nf7 Rb7 Nc1 Bc2 Nd3 e4 Bg6 Qf2 Rh8 Rh5 Bh7 Rb6 Rg1 h1Q Rg2 Qhh2 Rg1 Qdf6 Bc5 Qhd6 Rg3 Rh6 Rf3 Qfe6+ Rf5 Rg6 Kh5 h3 Re5 Qff5 Rd5 Qg3 Rd8 Qgd6 Ra8 Rb1 Ra4 Bd1+ Kh4 Rc6 Be1 Bf6 Be3 Bd4 Qb3 Rc2 Qc3 Rh2 Ra2 Rf6 Rc2 Qfc5 Rf2 Rf3 Kh5 Qcf5 Bc1 Ba4 Rc2 Re3 Bf2 Re1 Bf4 Rb2 Re2 Bc2 Bd2 Reb1
1b6/1p1prq2/1P1QRNR1/R1B5/n3b2r/Nb2K1qp/rnRBB3/4qNk1 w - - 0 1 illegal: No proof kernel forced: wxLB
KN3Q2/p2rp2r/1kb4n/4q1bP/1p3B2/B1B1qRNR/2Rrnn2/3BNb2 w - - 0 1 illegal: No proof kernel
1bn5/1N2Q2K/1bRn3b/R4pN1/r3BpPn/k2rqBN1/1p1R1b1B/3B3b w - - 0 1 illegal: No proof kernel
7r/3rBrB1/1R1nppNr/K1kqb1Qb/1N3n1p/2r1PN2/N7/1n3RBR w - - 0 1 illegal: No proof kernel
1r1r4/2K1rrn1/3p4/2pN2k1/Pp1QRNr1/B2b1R1B/R1qBnb2/3NBn2 w - - 0 1 illegal: No possible last move, all moves rejected
bN2R3/pr2QpK1/3b1n2/3B1n1R/1q2r1Rn/B3Bn2/p1kNnP2/1N2Rr2 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 d5 a4 bxa4 h4 dxe4 Ke2 g5 Ke1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 g4 e5+ Kh5 e3 c4 e2 d3 e1N g5 a3 c6 a2 c5 e4 c7 e3 c6 e2 g6 h3 g7 h2 Qb3 Qd6 Bg2 Qb4 Qe6 Ne7 Kh6 Nd7 Ba3 Nf6 Bd5 Bb7 c8N Nf3 c7 e1N Nb6 Rb8 c8R Ba8 Nd7 Rb7 Re8 Nh4 Nb8 Nef3 Qd6 Nc8 Qc7 Bd6 g8R Ne7 Kg7 h5 Qd7 Ng2 Qd8 h4 Qc7 h3 Qd8 Ke5 d4+ Kf5 Qc7 Rh4 Qd8 Re4 Qc7 Ne5 Nf3 Nh4 Nfd2 Nef3 Re1 h1R Qd8 Nc6 Qe7 h2 Rh8 Kf4 Rg1 Kf5 Rg4 Rf1 Rh6 h1N Rh5+ Ng5 Bb3 Ng3 d5 Ne2 Bc4 Bc5 d6 Ncd4 d7 Bd6 Be6+ Ke5 d8B Ndf5+ Kh8 Kd4 Bb6+ Kd3 Bd5 Kc2 Be3 Nh6 Kg7 Ngf3 Nc3 Nfg1 Re1 Ngf3 Ncb1 N6f5+
B3Qr1B/2R2RK1/N3q2p/3n4/1r1NP3/n1nk1b1N/p1Rrp2b/b1B1R1b1 w - - 0 1 illegal: No proof kernel
QN1r1R2/r3K3/rP1RRn1B/q2n1B1R/3B2nb/pp1r4/b1k1p1b1/3N2N1 w - - 0 1 illegal: No proof kernel
3r1RN1/Bp4k1/5N1r/n4b2/1p1qQpBP/3r1N1K/RN2n1bb/2BR1r1n w - - 0 1 illegal: No possible last move
1b1kN2K/1pb5/3rn2P/3b1qRb/1p1R1Np1/2Rn4/R3N1Qr/BB2Bn1r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 c5 e4 g5 h4 f5 a4 f3 Ke3 g3 d4 g2 h5 c4 h6 g4 Kf4 f2 Ke5 f4 a5 c3 d6 f3 d5 c2 d7+ Ke7 a6 Qc7+ d6+ Kf7 d8R Bf5 a7 Qd7 Rh5 Na6 Bb2 c1R Bd3 f1B Nh3 g1B Ra3 f2 Qc2 Nc5 Rc3 Nf6 Ba1 Ne6 Nf4 Bh2 Rg5 Nd5 Qb2 Qb5 d7 Ke7 Qd2 Rc8 a8R Bg6 Ra2 Bh5 Kf5 Qc5 e5 Bg2 Be4 f1N Bc2 Bh1 Qg2 Rc6 Be4 Rd6 Bc2 Nec7 e6 Bg7 Be4 Re8 Bd3 Be5 Bc2 Kf8 e7+ Kf7 Bd3 Ne6 Be4 Rf8 e8N Re1 Nd2 Rd1 Nb3 Bg3 Nc1 Ke7+ Nf6 Rd2 Bb1 Rf2 Ne2 Qb5 Qg1 Rh2 Qg2 Qa5 Rb8 Rc8 Ne8 Kd8 Ra8 Qc5 R8a3 Qb5 Rc4 Qa5 Rd4 Rc1 Rb3 Ra6 Rbd3 Bb8 Rc3 Rd6 Ke5 Nc5 Kf5 Nc7 Ke5 N7e6 Kf6 Nc7+ Kg7 Nd3 Kh8 Qf5 Qh3 Bd5 Qg2 Ke7 d8B+ Kd7 Rg6 Ne6 Bh4 Rd1 Rg5 Kd8 Rcc2 Nd2 Rc3 Rdh1 Ng6 Nf1 Ngf4 Bf2 Bg3 Be3 Be1 Bf2 Re4 Bb6 Rd4 B6c7
2rRRR2/q1r1B1Nn/N1rBnbb1/3B4/Kp5k/p4p2/3rqP1N/RQ2r3 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 d4 h5 Kd2 a5 c4 f5 Kc2 Kf7 Kb3 Kg6 g4 e5 d5 f4 c5 Kg5 b6 e3 d6 f3 d7 h3 b7 h2 c6 h4 c7 e4 Ra3 h3 Qd6 Ra6 Ra1 Be7 Qc5+ Kh4 g5 e2 g6 e1Q g7 e3 Qf5 e2 Ka4 Bf6 Bf4 Nc6 b8N Qe7 d8B Nd4 Bd6 Ne6 Nd2 Rc6 Qb1 Ba6 c8R Qa7 B8e7 Bd3 Rf8 Bg6 Na6 Qd1+ Nb3 e1R Bc4 Qe2 Nd2 Rd1 Nf1 Rd2 Bd5 Rh7 Ra3 Rh8 Rd3 Rc7 Kb5 a4 Ka5 a3 Ka4 Nh6 g8R Nf7 Re8 Nfg5 Rgf8 Nh7 Rd4+ Qe4 Ne2 Rc6 Nf4 Qe2 Rg1 h1R Rd3 h2 Nh5 Rg8 Ng7 Rh8 Rg2 Rg1 Rg5 h1R Nh2 Rgc1 Rg1 R1c3 Qb2 Rcc2 Ra1 Re1 Qb1 Rc7 Rc3 Rg8 Rc5 Rh8 Rb5 Rg8 Rbb8 R2c6 Rbd8 Rdd1 Rf7 Qb6 Rc8 Rh8 Rg8 Rd2 Rb8 Rb2 Rgc8 Rd8 Rf8 Rd2 Ra8 Qa7 Rab8 Rdd7 Rce8 Rd8 Rb5 Ra8 Rbb8 Nd8 Rc8 Ne6 Rcd8 Rac8
1Nn5/n1kNrB1p/b4B1b/4q1R1/N3P1Q1/r2r1pp1/2rqB1r1/K3RR1B w - - 0 1 illegal: No proof kernel
k1r1R2n/2r4B/NbKRN1b1/q4R1q/1r1Np2B/3n1Q2/pB1P1p2/qB1r4 w - - 0 1 illegal: No possible last move, all moves rejected
1b4nR/b7/BN1B1nb1/1RQB1N2/1R1Nppkq/2P1p3/2r2b2/1n1K1rqB w - - 0 1 illegal: No proof kernel
B4brR/8/4NqNQ/3BRqpP/1rb1qr2/pRr1n1n1/R1N2Bpk/3K4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 h5 f5 c5 g5 c6 d5 c7 g3 b6 g2 b5 f3 b7 f2+ Kd2 Kf4 b6 Kg3 e5 d3 e6 a4 e7 f4 e8N f3 Na3 d4 Nh3 Nf6 Nd6 Nd5 Rg1 Be6 c8B Ne3 Ne8 Nd7 b8R Nf6 b7 Bc4 Nd6 Rg8 Ne8 Kh2 Nc2 a3 Ra2 Ra4 Nf4 Rb4 Nc7 Qe8 Be2 f1Q Be6 f2 Bd5 Qe4 Ng6 Qf5 Bb2 Ne4+ Kc1 Qe1 Bf3 f1R Ne6 Ng3 Bc3 Qe2 Be1 Qf6 Bfe4 Rf4 Bf2 Qg4 Re1 Qgf5 Bf3 Qe4 Rd8 Qff5 b8R Qf6 Na1 Qff5 Qb3 Qf6 Nc2 d2+ Kb1 d3 Ba8 Qef5 Bfd5 Nd1 Re5 Ne3 Rd7 Qe4 Rh7 Qef5 Rh8 Qe4 Ka1 d1R+ Qb1 d2 Rb6 Ra4 Rb3 Rb4 Qc1 Re1 Kb1 Re2 Qb2 d1Q+ Qc1 Qdd3 Qd2 Bh6 Kc1 Bf8 Qc3 Rd2 Qd4 Qef5 Qb6 Qde4 Qa6 Rd3 Qb6 Bc5 Qd6 Rc3 Qf8 Ba7 Qh6 Bc5 Kd2 Bf8 Ke1 Ng4+ Kd1 Ne3+
B2Nn3/2bqN2N/kb2K1pb/2RRP2b/2N4r/p1q5/1p1q1BQ1/Bnr1R3 w - - 0 1 illegal: No proof kernel
qrk2rK1/1q1rrR2/4p1n1/8/p3BNN1/p1qB2Pb/2nbRQ1B/5NRR w - - 0 1 illegal: No possible last move, all moves rejected
1RqB1N1r/nr3q2/1nNp2n1/3Q4/2P1p1N1/R1pb4/bR1BkbK1/2b2R1B w - - 0 1 illegal: No proof kernel
n2q2B1/3QR1K1/1Bp1qB2/1brN2NN/kb2bqP1/3RN3/p1pr2n1/1b5R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 Ke5 f5 d4 h3 b4 h4 e4 f3 g4 h2 b6 Kc6 b7 Kb5 d5 f2 d6 c6 d7 a4 Qd2 a3 Nf3 h3 Ng5 a2 Bb2 f4 Na3+ Ka4 b5 f3 b6 c3 Bc4 f1B Rd1 f2 Nc2 Nh6 Ne3 Bb4 Bg8 Na6 b8R Nf5 b7 Nh4 Ke6 Nc7+ Kf7 Rh6 e5 Ra5 e6 Na8 e7 Rd6 e8N Rc5 Nc7 Ng2 Kg7 Bb5 Ncd5 f1Q Qd4 Qf4 Rd3 Qa5 d8N Bf5 Nde6 Qd8 Rc8 Be4 b8B Bg6 Bc7 Bh7 Rc1 h1Q Bb6 h2 Rc7 Qe1 Re7 h1B Ra1 Nh4 Rc1 B1e4 Rb1 Qe2 Rh1 Ng2 Ba1 Qf5 Nef4 Qd2 Bc7 Qe6 Nh5 Qf2 Bb6 Qf4 Qe5 Rd7 Qc7 Rd6 Qd7 Bhg6 Rd4 Bb1 Rd3 c2 Bf6 Bf5 Nc7 Rd4 Ncd5 Be4 Rc3 Rd1 Rd3 Rd2
r3bb2/1Qb4p/Rn2bN1N/1B4Bp/N1N4B/1p2nqr1/2P2rkq/1K1RR3 w - - 0 1 legal: proof: e4 a5 d4 c5 h4 cxd4 b4 axb4 h5 f5 h6 gxh6 exf5 h5 Kd2 Kf7 f4 Kf6 g4 e5 a4 b5 a5 d5 a6 b3 a7 b2 Bh3 e4 Ra3 b4 Ra1 d3 Qf3 b3 Ra6+ Qd6 Ne2 d4 Rd1 Be6 Nec3 Nh6 Na3 b1R Nc4 Rg8 Bf1 Nd7 Na4 Nb6 Re1 e3+ Kd1 d2 g5+ Kg7 g6 Kf6 g7 Ng4 Qb7 Bd7 Be2 Be8 Bd3 Qd5 Bf1 Qg2 Be2 Qh2 Bf1 Rd8 a8N Ra1 Nc7 Ra8 Be2 Kf7 f6 Kg6 f5+ Kg5 f7 Kf4 f6 Kg3 Nd5 Kg2 Ncb2 Rb1 Bb5 Ra1 Nc4 Rb1 Ke2 d1B+ Kd3 e2 Bg5 Rc1 Kd2 d3 Kc3 d2 Kb2 Ne3 Bh4 Bd6 f8B Bc7 Be7 Rf8 g8N Rf7 Rf1 e1B Nh6 Bg4 Bg5 Bf2 Re1 d1Q Bh4 Rf8 f7 Qf3 Beg5 Be6 Nf6 Bfg3 Rd1 Bgd6 Re1 Rg8 f8R Be7 Rf7 Bf8 Rd7 Rd1 Rd8 Rd2 Kb1 Rf2 Rdd1 Rg6 Bf4 Rg4 Bfg5 Rg3
nqQ1N3/1qr1ppb1/1r2b3/2NB1PK1/1bb3n1/k1B1R1Np/1N5n/1BRR4 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 c4 h5 g4 a5 d4+ Kb6 g5 b3 c5+ Ka7 c6 Kb6 d5 Kc5 b6 Kb4 c7 b2 d6 h3 g6 a4 b7 h4 d7 a3 g7 a2 Nc3 b1B Qg4 e3 Bd3 h2 Bd2 e2 Kg5+ Ka3 f4 e1N Na4 h3 Nb2 Ra7 Ne2 Nf6 g8N Rh6 Ng3 Bg7 Bc3 Na6 b8N Rb7 Qe6 Ng4 f5 Qe8 Be4 Bd3 d8R Bc4 Rad1 a1B R8d3 Rf6 Qd7 Rfb6 Nf6 Qh8 Qc6 B8e6 c8B Nc7 Re3 Na8 Ne8 Rc7 Nd7 Qf8 Rf1 h1Q Bb7 Qg8 Nc5 Nf3+ Kh5 Qg2 Bb1 Nfh2 Kg5 Qf8 Qd7 Qh1 Bd5 Qf3 Nf6 Qb8 Qc8 Qe4 Nba4 Bb2 Ne8 Bc1 Nb2 Bd2 Bc6 Qd5 Rc1 Qd7 Bd5 Qc6 Rfd1 Qcb7 Bf6+ Bd3 Be5 Bb4 Bc3 Bc4
b1rBQ2N/3p1NRr/P1N2KR1/4npn1/3q2pk/n1q3bB/1R1BB3/q6q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 b5 c4 f5 h4+ Kg4 a4 g5 e4+ f3 c5 d3 h6 b3 h7 b4 c6 b2 c7 d2 a5 b3 h5 Bc5 a6 Ba7 h6 Bf2 Bh3+ Kh5 Na3 b1N Nc2 b2 Qe2 d1Q Nd4 Qf8 Nc6 Qa4 Bd2 Nf6 Rh2 Rg8 h8B Qf7 h7 Bb7 c8R Rg7 Rg8 Na3 Ra2 b1Q Rg2 Qad1 Rb2 Qc4 Rg4 Rf7 Rg6 Qa1 Bg7 Qd3 h8N Nh7 Bf6 Q1b3 Rg2 Kh4 Bd8 Be1 Qe3 f2 Rg3 f1Q Nf3+ Kh5 Qe2 Qh1 Rg7 Nf8 Rg6 Rh7 Kf6 Qd4+ Nfe5+ Kh4 Rg1 Ne6 Rg2 Qc5 Nef7 Qbc3+ e5 Bg3 Rg7 Ra7 Rg1 Ba8 Qe1 Rc7 Qe2 Nd4 e6 Rc8 e7 Ne6+ Qe5 Q5d4 e8B Bh2 Nh6 Bg3 Bh5 Qcb4 N6f7 Qbc3 Be2 g4 Rgb1 Ng5 Rb6 Qdc5 R1b2 Q5e3 Nd4 Nc6 Qe8 Ne5 Rd6 Qag1 Nc6 Qb6 Ke7 Qbf2 Rdg6 Qfd4 Kf6 Qa1
2bnkqR1/1nP2N2/RQ6/1Kr2bb1/2pq3r/p1NrB3/b1B1p1N1/R1B3R1 w - - 0 1 illegal: No proof kernel
N3b1R1/1ppB3n/1BBRb1R1/1P1n4/bkq1nrQq/N2p1N2/6r1/2R2K1b w - - 0 1 illegal: No proof kernel
bqk2r2/p1bRRBN1/1n5P/N1n5/r2n1Q2/1pR1bb1p/1K2N2B/1B1R1q2 w - - 0 1 illegal: No proof kernel
5N1b/p2p2p1/b2n1br1/1q2RQ2/N6R/kBq1BRRN/3n1Pnr/B3Kb2 w - - 0 1 illegal: Other
2r3n1/r2kN2Q/1p2R1B1/1n2r1p1/Nbb2B2/2rrBqR1/1pP3BR/K5rN w - - 0 1 illegal: No possible last move
rN3B1r/b2r2B1/1nq5/1b6/1n1Rp1pR/PB4np/QBR2nNk/1rN1K3 w - - 0 1 illegal: No proof kernel
2B1N1Q1/2rB4/b2N2Rb/2r2pNq/1rbRn1k1/5p2/1PKp1r1B/RB1n2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 h4 Kf6 c4 Kf5 b6 a5 b7 g5 c5 d5 c6 a4 c7 f3 e3 g3 h5 a3 e4+ Kg4 h6 f5 h7 d3 e5 g2 e6 a2 e7 d4 e8B Bh6 Na3 Ra7 Nc4 Nd7 b8N Ne7 Nb6 Nf6 N6d7 Ne4+ Ke1 Ba6 c8B Rc7 Bd2 Nd5 Bf4 Ndc3 Qb3 Nd1 Nh3 g1R Nc5 Rg2 Bh2 Rf2 Bed7 Qe8 Nb7 Qh5 Nd6 Re8 h8R Re5 Qe6 Rec5 Rg8 Bc4 Rg6 Ba6 Rc1 a1R Rc4 Ra4 Qg8 Rb4 Be2 Kh4 Bf1 g4 Ng5 g3 Be2 g2 Rg1 Bb5 Na6 Kg4 Rh1 g1B Bf1 Ra7 Nc7 Ba6 Nce8 Rac7 Be2 Nf6 Kd2 Ne4+ Kc1 d2+ Kb1 d3 Rd4 Ne3 Bf1 d1B Be2 d2 Bd3 Bb3 Bc2 Bbc4 Bd3 Nd1 Kc2 Re2 Bb5 Be3 Bbd7 Nc3 Ra1 Bg1 Ba4 Rf2 Bad7 Bf7 Bc4 Bd5 Ba2 Bdc4 Bb1 Nd1
3B1Q2/3R1rn1/rNP5/bn1b2Rr/Rp2b3/1rp3N1/p1N2BBk/2N1Kq1b w - - 0 1 illegal: No proof kernel
3b1Rb1/2n1Rr1p/1NQ1B1Pb/1B4N1/3N1R2/rrbK2BN/1qpp2rn/7k w - - 0 1 illegal: No proof kernel
B1n3QK/1n2kr2/1rb1qn1B/2n1B3/1N1RN2q/1p1RpB1q/1nNpP3/5R2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Qd3 Bh6 Qd2 fxg4 Qd1 g3 Bd2 g4 Bc1 Bg5 hxg5 Kf8 Nd2 Kf7 Nb1 Ke8 Kd2 h5 Kd3 b5 Ke4 e5 Kf5 d5+ Kg6 e4 Kg7 g2 c4 g3 a4 h4 f4 h3 c5 d3 g6 d2 f5 h2 c6 e3 c7 b3 a5 d4 a6 b4 f6 b2 a7 b3 f7+ Ke7 Nf3 g1Q Ne5 g2 Na3 b1N Nf3 d3 Nh4 Nc3 Rb1 Na4 Nf3 Bd7 c8R Nc5 Ne5 Nb7 Nc2 Nf6 Rc4 Bc6 Bb2 Rh6 Rd4 Nbd7 Bc3 Rb8 a8B Nb6 Bb2 Nc8 f8B+ Ke8 Qe1 d1N Qg3 d2 Nd3 Qd6 Rc1 Qe6 Ndb4 Qf2 Rd3 g1Q Be5 Rh3 Bg2 Nb2 Bf3 Qgg2 Rhf1 h1N Ra1 Rh6 Ra4 Qgh3 Qg4 Qfh4 Qc4 Nh7 Kh8 Nf2 g7 Ne4 g8N Rf6 Bh6 Rf7 Nf6+ Ke7 Qd5 Nec5 Ne4 Qg6 Qc4 Nf6 Qd5 Rf8+ Qg8 Rf7 Na6 Qgg4 Rad4 Qe6 Nab4 Na5 Qg2 Rb6 Qg8 Nab7
8/5NK1/5p1n/NRr1B2n/Qq2rP2/2rNRr1p/p1rN1b1q/k2B1RqB w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 Rh3 bxa4 Rh1 g5 e4 gxh4 Rh3 d5 Rh1 d3 Qh5 d4 Qe2 Bb7 Qd1 Bd5 exd5 Bg7 Qh5 Bh6 Qd1 Bf8 Kd2 Kd7 c4 Kd6 f4 Kc5 g4 Kb4 d6 h5 d7 e5 g5 a5 c5 a3 g6 a4 c6 e4 c7 h3 c8B h2 g7 a2 b3 e3+ Ke1 a3 Bh3 f6 Qc2 d2+ Ke2 d1R Kf3 h4 Ke4 d3 Kf5 d2 Kg6 e2 Bf1 e1R Nf3 h3 Ng1 Bc5 Bb2 Ra5 Be5 Re4 Nf3 Nc6 Ne1 Bf2 Bb7 Qb8 d8N Rc1 Nf7 d1Q Be2 Nh6 g8R Rc5 Rf1 h1Q Nd2 Nd4 Re8 Ndf5 Rb1 Ng3 Kg7 a1R Bf3 a2 Nd3+ Ka3 b4 Qg2 b5 Qh2 b6 Qd6 Re7 Rhc8 Rb5 R8c6 Qc4 Rc2 Re6 Qb1 Bd1 Qb4 Ba8 Qd4 b7 Rb1 b8N Rb3 Bb7 Qe3 Qd4 R5c3 Re7 R6c5 Nc6 Qe1 Na5 Qe3 Nc1 Kb2 Nd3+ Ka1 Qd7 Qf3 Qd4 Qfg2 Qc4 Ra3 Qb3 Qgg1 Qa4 Re1 Bh1 Re4 Nb2 Rf3 Nd3+ Rac3 Bd6 Rd4 Re3 Re4 Be5 Nh5+
qr1Nn1Kq/5pQ1/2nR1R1B/b2np2n/1R1N4/4q1N1/p2rBP2/N3B1kn w - - 0 1 illegal: No possible last move
6Bk/bn2N1R1/q2Q3r/Nq1r1r2/K1pBR3/p4pR1/2r1NP1q/bb3N1B w - - 0 1 legal: proof: c4 g5 d4 d5 a4 dxc4 e4 b5 h4 bxa4 d5 gxh4 d6 Nc6 Nd2 Nb4 Nb1 Nd5 exd5 Bf5 Qd2 Bh3 Qd1 Bc8 Kd2 h5 Kc2 e5 g4 c5 b4 a5 g5 f5 g6 f4 b5 f3 g7 Kf7 d7 c3 b6 e4 d6 c4 b7 h3 b8N h4 Rh2 e3 Na3 e2 Bg5 e1R Qd3 Qf6 d8R Nh6 g8B+ Kg7 d7 Re5 Bf7 Rf5 Be8 Qa6 Rh1 h2 Bh3 Nf7 Nc6 Rh6 Ne2 Bc5 Nb1 a3 Ne7 a4 Qd6 a2 Nd2 a3 Rhe1 h1Q Be3 Kh8 Nf1 Qh2 Bg2 h3 Bh1 Ba7 Bd4+ Qe5 Rab1 a1B Rb7 h2 Rc7 Bb7 Rb8 Nd8 Bf7 Bc6 Bg8 Nb7 d8N Be8 Rd7 Bg6 Ndc6 Bh7 Rf8 Rd8 Na5 Bg6 Rf7 Bh7 Rg7 Qeb5 Nc1 Bg6 Re4 Bh7 Ne2 Bg6 Kd1 c2+ Kd2 c1R Rc7 Rb1 Rc5 Rb2+ Kc3 Bh7 Rce5 Rd7 Reg4 Bg6 Ree4 Bh7 Bg2 h1Q Rg3 Qh2 Bh1 Rd8 Qc6 Rdd5 Qc7 Qd7 Qd6 Rc2+ Kb4 Rc1 Ne3 Rf8 Rh4 Bb1 Nf1 Rc2 Rf4 Rff5 Re4 Qc7 Ka4 Qcb6 Nc8 Qb2 Ne7 Qbb5+
4qNKb/1pRN2b1/p5pB/2n2bnB/Pnq2k1B/R4q2/q5r1/B1RN3Q w - - 0 1 legal: proof: g4 d5 h4 f5 b4 fxg4 e4 dxe4 Bh3 c5 Bf1 cxb4 h5 g6 h6 Na6 Rh5 Bd7 Rh1 Rc8 Nh3 Rc6 Ng1 Rf6 Qe2 Rf7 Qd1 Rg7 hxg7 Bb5 Rh3 Bc6 Rh1 Bd7 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 e5 a4 h5 f4 g3 d4 h4 c4 h3 c5 b3 c6 e3 c7 e4 c8R g2 Nf3 g1Q Nc3 b2 Ne5 b1Q Ra3 h2 Bb2 e2 Ba1 e1N Be2 e3 Rc7 Nh6 g8N Qg3 Nf6 Qe8 Nh7 Nc2 Qg1 Qf1 Qg2 Qb1 Rc1 h1Q Nd1 Qf1 Qh1 Nc5 Bf3 a6 Be2 Bg7 Bf3 Rf8 Bh5 e2 Kd6 e1B d5 Be6 Nd7 Qbb3 Bf3 Bh8 Bh5 Qb8 Ke7 Qe2 d6 Qh4+ Ndf6 Nb4 d7 Qba2 d8B Qhg4 Nd7 Bec3 Qg1 Ke4 f5 Bcg7 f6 Qec4 f7 Qgg2 Qh1 Re8+ Kd6 Bf5 Nhf8 Qf3 Bdf6 Re5 Bh4 Rd5+ Ke7 Rd2 Ne6 Rg2 f8B Bd4 Bg7 Nf7 Bh6 Ng5 Nef8 Bdg7 Qg1 Nge6 Kf7 Qe8+ Kg8 Nbd3 Nb6 Nb4 Qh1 Ng5+ Rf7 Nd5 Rc7 Kf4 Nd7 Nb4+
8/NpBB3b/5p2/1K1q3Q/NP1Rb1nb/1RR1r2p/nbq1B3/k2qNB1n w - - 0 1 illegal: No proof kernel
1R1n1R2/N3Bn1N/1pp1b1n1/bnP1r3/k1NN2p1/1rBr1b2/2B5/n1K1RQ2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Be2 Qd5 Bd3 fxg4 Be2 g3 Bc4 g4 Bf1 Qg5 hxg5 Bh6 Rh5 Bg7 Rh1 Bf8 f4 Kd7 a4 Kc6 c4 h5 d4 e5 Kd2 b3 f5 e3+ Ke1 e2 Kd2 e1R a5 e4 g6 b2 a6 b6 f6 h4 a7 h3 g7 h2 f7 g2 Qb3 Nh6 g8R Be6 Nf3 g1N Qd3 Nh3 Na3 Nf4 d5+ Kc5 d6 Kb4 d7 b1N+ Kc2 e3 d8B e2 Bd2+ Ka4 Nd4 Nc3 Be7 Nb5 Bc3 Ng6 c5 Nc6 Kd2 Bg7 f8N Nf7 Nh7 Ncd8 Rf8 c6 Rg1 Rb8 a8N h1B Nc7 Bf3 Rd1 Bf6 Kc1 Bh4 Nc4 Bg3 Ng5 Rh3 Nh7 Be5 Ne8 Rb7 Ned6 Rd7 Nc8 Rd5 Na7 Bf4+ Kb1 Bd2 Rh1 Re5 Bg2 Rf1 Re1 Rg1 Bf1 Rgg3 Qf5 Be4+ Kb2 Rd3 Bg2 B4d5 Qf1 Rhe3 Be4 Rf3 Rd1 e1N Rb1 Nc2 Re1 Na1 Rh5 Rh3 Rg5 Ngh8 Rgg8 Ng6 Bf5 Bf3 Be4 Nb7 Rb8 Nbd8 Rf8 Bc1+ Kb1 Ba3 Bf5 Bb4 Kc1 Ba5 Be4 Rh2 Bf5 Rb2 Be4 Rb3 Bf5 Rd2 Bc2 Rd3
B2kNnnB/R2bn1b1/1npr4/1Rrn4/1NP2pQK/2p1b3/3R2Rn/2N1B3 w - - 0 1 illegal: No proof kernel
kBN3bN/B3rrQ1/1R5p/2n2p1r/2K1nb2/RnbN1Pnb/B2Bp3/7R w - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 e4 a5 h4 gxh4 d5 axb4 e5 Qd6 exd6 Bh6 Nh3 Bg7 Ng1 Bf8 Kd2 Kd8 a4 c5 g4 e5 g5 b5 f3 c3+ Kd3 h3 d7 Kc7 d8B+ Kb7 a5 e4+ Ke2 c4 g6 b3 d6 h2 d7 c2 g7 c3 Bc7 b4 d8B b2 Bf6 e3 Kd3 b3 Bh4 e2 Bh3 Bb4 Ra3 Nd7 Be6 Ngf6 g8R Nc5+ Kc4 Nfe4 Nd2 b1R Nh3 b2 Nf2 Ra7 a6+ Ka8 Bb8 Re7 a7 h6 Bhg3 Rh7 Nd3 f6 Rh8 Rhf7 Bf2 Ra1 Bd4 b1B Qg1 Ba5 Qg7 Ba2+ Kb5 Bb4 Nc4 Rb1 Bg5 c1B Bd2 c2 Nce5 Bc3+ Bb3 Rb2 Kc4 Bh3 Ng6 f5 Rc8 Rb1 Rc6 Ra1 Nh8 Rb1 Rf1 h1N Rb6 Nhg3 Rh1 Ra1 Be1 Bf4 Bd2 c1N B4e3 Bb1 Ba2 N1b3 Rc6 Kb7 a8N Bc2 Nb6 Re1 Rh2 Rh1 Nc8 Bb1 Ba7 Ka8 Rb6 Bg2 Rh5 Rh4 Bd4 Bh3 Be5 Bc2 Rg5 Rh5 Beb8 Nf1 Rg1 Nfg3 Rh1 Bb1 Nb2 Bd3+ Kd5 Bb5 Nd3 Bc4+ Kc6 Be6 Kb5 Rf6 Nb2 Bg8 Nd3 Rff7 Kc4 Be3 Kb5 Bg5 Kc4 Bf4
BBBQbr2/p1b1n3/1k1N4/1N1RR3/nR1r1b2/1r3qP1/Npp1N2p/n4K2 w - - 0 1 illegal: No proof kernel
1q2B2k/6bP/5n2/NR1N2q1/p1brp1RN/N1Bq1r2/pQ1nBp2/1R1n3K w - - 0 1 illegal: No proof kernel
3NRB1n/qp6/Bp2pbr1/Q3NbRn/4pk2/B1q1N3/R2P1r2/K1n1B2b w - - 0 1 legal: proof: e4 f5 c4 fxe4 b4 g5 h4 gxh4 b5 d5 b6 axb6 cxd5 Ra4 Ke2 Ra5 Ke1 Ra8 g4 c5 f4 h5 a4 Kd7 d6 Ke6 f5+ Ke5 f6 c4 f7 e6 d7 h3 a5 h2 g5 c3 g6 c2 g7 h4 a6 h3 a7 Rh5 Na3 Rh4 Ba6 Qf6 Qg4 Ne7 d8B Bd7 Ra2 Bb5 g8N Ng6 Nh6 Bg7 Qg3+ Rf4 Qg5+ Rf5 Be7 Nh8 Nf3+ Kd5 Qh5 Nd7 Rg1 Bf1 Rg6 Qb2 Bh4 Qe5 Nc4 Rg8 f8B Qc7 a8R Nf6 Bb5 Qc5 Qg5 Nh5 Nf7 Bf6 Re8 Qa3 Rg7 Qa7 Nd8 h1Q Bca3 h2 Ba6 Bh3+ Ke2 Qa1 Be1 c1N+ Kd1 h1B Kc2 Qc3+ Kb1 Re5 Qf5 Bg4 Rg5 Rg6 Nh4 Kd4 Ng2 Bh3 Nge3 Rd5 Qf4 Rf5 Qg3 Rf2 Qe5+ Kd3 Qc5 Ke2 Qa5 Kf3 Ne5+ Kf4 Ndf7 Qb3+ Ka1 Bf5 Nd8 Qc3+
qN4r1/ppNB1R2/1b2n2p/p3Q3/1rR1BN1K/2N1k3/qB1n3P/R1qb2n1 w - - 0 1 legal: proof: d4 e5 dxe5 f5 g4 fxg4 a4 Bc5 b4 Bd6 b5 Bf8 b6 cxb6 a5 bxa5 c4 Ke7 e4 Ke6 f4 d5 Kf2 g5 Kg3 d4 c5 d3 c6 d2 c7 Na6 Ne2 Nc5 Bg2 Nf6 Qe1 d1Q Nbc3 Qb3 Bb2 Qa2 Rf1 h6 Rf2 Rg8 Rf3 Bd7 c8R Ba4 Rf1 Bd1 f5+ Kd7 e6+ Kd6 e7 Ke5 e8B Ne6 Rc6 Bc5 Bd7 Bb6 Rc4 Rc8 Nf4 Rc5 Bf3 Rb5 Qe3 Rb4 Rf2 Nd5 f6 Qa8 f7 Nf6 f8N Rb5 Kg2 g3 Kh3 g4+ Kh4 g2 Qe1 g1N Bh1 g3 Qe3 Kd6 e5+ Ke7 Bf3 g2 Be4 Rb4 Qe1 Ng7 e6 Kd6 e7 Ke5 e8N Ne6 Rc6 Kd4 Nc7 Ng4 Qe2 Ne3 Qb5 Nf1 Qe5+ Ke3 Rc4 Ng5 Be8 Nd2 Nd7 Ne6 Nb8 Nh3 Bd7 g1Q Nh5 Qf1 Rf7 Ng1 Nf4 Ba4 Rd4 Qc1 Rc4 Bd1
5k2/n4rnK/2Npp1Rr/3B1b1Q/1q1R1p1B/6R1/1PrBN1pb/2N1Nr1n w - - 0 1 illegal: No possible last move
k1b1r1KB/1R3r1N/2pBp3/p1n2n1B/n6p/3R1P1R/nQ2Bb2/1Nq2N1b w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 a5 Kf4 h5 Ke5 e6 g4 e3 b4 h3 d4 h2 g5 h4 d5 c3 f3 c6 d6 c2 b6 e2 b5 e1N b7 Ng2 g6 Qe8 g7 Ne1 b6 Ne7 Kf6 Rg8 Ne2 Ng6 Ng3 Qd8+ Kf7 Nf4 Be2 Ra7 Qd2 Nd5 Bb2 c1N Ra3 Qg5 Rd3 Ng2 Nf1 Na6 b8R Nc5 b7 Na2 Qc2 Kd8 d7 Kc7 d8N Nb6 Qc3 Rh8 g8B Qc1 Ba1 Rh5 Qb2 Nba4 Bh7 Bd6 Kg8 Bg3 Nf7 Bf2 Bg6 Rh7 Bh5 Ne3 Ng5 Rf7 Nh7 Nf5 Qb4 Ng3 Bh8 Nf5 Qb2 Re7 Rg1 h1B Rg3 Rf7 Rh3 Re7 Qd4 Kb6 Qb2+ Ka6 Ra8 Rf7 b8B Re7 Bd6 Rf7 Rb8 Rae7 Qb4 Ka7 Rb7+ Ka8 Qb2 Re8+
B3krNB/1bpnp2b/P2r4/RrB1RN2/2r5/K3b2R/1pR1pq2/1Qn1N3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 h5 Kd2 b5 Kc2 e3 Kb2 h3 a4 e2 f4 h4 g4 b3 f5 h2 g5 h3 d6 b4 d7+ Kf7 d5 Bh6 a5 Qe8 d8R Qd7 d6 Qb5 a6 Bg7+ f6 Qc5 d7 Qb6 Nf3 Rh4 Ra5 Qf2 Nc3 Nh6 Nb5 Ng4 Ne1 Bb7 Be3 Bh6 Bc5 Ne5 Qb1 Rc4 Bg2 Be4 Rh8 Bh7 d8R Nbd7 Nd4 Rb8 Rdg8 Rf8 g6+ Ke8 g7 Be3 Rf1 h1B Ba8 h2 Nf5 Bb7 f7+ Kd8 Rg1 h1R Rg6 Rh6 Rc6 Re8 f8B Rd6 Ka1 b2+ Ka2 b3+ Ka3 Bg6 Rh6 Bh7 Rh3 Nd3 Rh8 Nc1 g8N Ne5 Bg7 Nd7 Rh5 Rf8 Rg5 Ke8 Bgd4 Bg6 Rh3 Bh7 Bh8 Re6 Qa2 b1R Qa1 Rb2 Qb1 Rg6 Ng3 Rd6 Re5 Rbc2 Nf5 b2 Bd4 Rb4 Rc4 Rb5 Bc5 Rcd2 Rc3 R2d4 Rc2 Rc4
2B1Nn1R/pbKqbk1P/rRB5/r1N5/rb5p/BrQp1n1N/3p3R/4R3 w - - 0 1 illegal: No proof kernel
r3B2q/B4pKb/p1qR1RN1/3bN1NR/rkp2npB/q1R1b1P1/6Q1/4r3 w - - 0 1 illegal: No possible last move
1N1Nr2N/RpQ2Bp1/5NBq/Rq1p1qR1/pb1n1b2/Pk5b/1B1n1K2/4n3 w - - 0 1 legal: proof: d4 c5 b4 cxb4 g4 h5 f4 hxg4 e4 a5 e5 Ra6 d5 Re6 d6 exd6 f5 d5 fxe6 d4 h4 Ke7 c4 f5 h5 d5 c5 b3 h6 g3 h7 g2 c6 d3 c7 d2+ Kf2 b2 Nh3 f4 Ng5 f3 Nc3 b1Q Ne2 Nf6 Nd4 Qf5 Nf7 Qd6 Nd8 Nc6 Qc2 d1Q Rh5 Nd7 Bb2 Nc5 Bd3 Qb1 Rg5 g1B+ Kg3 Rg8 h8N Bh2+ Kf2 Bf4 Qc3 Bd7 Be4 Qd3 c8R Qb5 Ra8 Bc8 Ra7 Nd3+ Kf1 Ne1+ Kf2 Qg4 Bg6 Qf5 Qc5 Bd7 Qb6 Bc8 Qc7+ Bd7 Nc2 Nd4 Nb4 Qdb6 Na6 a4 a3 Qd6 Rc1 Qdb6 Nb8 Q6a6 Rc5 Qd6 Kg1 f2+ Kh1 f1N Kg1 Nd2 Kf2 Qdb6 Bh7 Ke8 e7 Qh6 Bg6+ Qf7 Bc2 Bh3 Bb1 Qf5 Be4 Qbd7 Rca5 Qb5 Bd3 Qff6 Bh7 Qf5 Bg6+ Qf7 Bh7 Qff6 Na6 Qf5 Bg6+ Qf7 Qc3 Kd7 e8B+ Ke7 e6 Kd6 Nb8 Qf5 Bef7 Be7 Qc8 Bf8 Qd7+ Kc5 e7 Kc4 e8N Kb3 Qc7 Bb4 Nf6 Re8
B3r2b/P1R4n/RN2np1r/B3n1p1/3p4/KNpBk1N1/1QpR2bb/2qR4 w - - 0 1 illegal: No proof kernel
r5Bk/2Bn4/N1N2p2/Rn2pPR1/N2ppqr1/3QpBbq/4r2b/3N1R1K w - - 0 1 illegal: Other
1b2B3/Kn2BNp1/1Rrp3p/3RRr2/1pRQN1n1/k1n5/2n1PqBp/2Nb4 w - - 0 1 illegal: No proof kernel
1B1kr3/pB3pq1/1K3P2/2BqRN2/pn2p3/bNRn4/Nr3p1q/2Rq2QR w - - 0 1 illegal: Other
2N2Nb1/R1n2k1N/PK2np2/Bpppq2b/B5Rp/5N2/1r2p1QR/bB1r4 w - - 0 1 illegal: No proof kernel
r3nR1B/p1B1QK1p/1p3N2/P3N3/nR1NrRpk/6p1/ppB4B/1bq1r3 w - - 0 1 illegal: Other
n1RBN2B/b2B2P1/5n1Q/2B1pn2/b1QN2n1/bBb5/5knK/2bR4 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 b4 fxe4 c3 dxc3 Bb2 a5 Ba3 a4 Bc1 Qa5 bxa5 Ra7 Bf4 Ra6 Bc1 Ra8 h4 h5 g4 g5 f4 Ra7 f5 Rc7 f6 Rc5 Qd2 Rf5 gxf5 g4 Qd1 Rh7 Qd4 Rg7 Qd1 Rg5 hxg5 Bh6 Nh3 Bg7 Ng1 Bf8 Kf2 Kf7 Kg2 e5 b6 d5 a6 d4 a7 a3 a8B c2 b7 h4 Bf4 c1B Bb5 d3 Bh2 e3 Bf4 a2 Nc3 d2 Nge2 g3 Qa4 d1N Bd7 Bfa3 Ne4 Na6 b8B Nc7 Nd4 e2 Ba7 e1N+ Kg1 h3 Bc5 g2 Kh2 Bb7 Qc4+ Bd5 Bd2 Ne3 Ba5 Be6 Bac6 Na8 Ba4 Bd5 Rb1 a1B Bd8 Bc3 Rb8 Be6 Rc8 g1B+ Kg3 h2 Bb3 N1g2 Nd6+ Kf8 f7 Kg7 f6+ Kg6 f8Q Kh5 f7 Nf6 g6 Bh3 Bc6 Bd7 Ne8 Kg5 Bca4 Bc6 Kh3 Kf4 Qh6+ Ke4 f8B Bd7+ Nf5+ Kf3 Bg7 Kf2 Bh8 Bc6 Bb5 Bd7 Ba6 Ba4 g7 Kf3 Bb5 Bf2 Rf1 h1N Kh2 Ng3 Rd1 Bg1+ Kh3 Kf2 Nd4 Ngf5 Bd7 Nf1 Nc6+ Kf3 Bb4 Ba7 Bc5 N1e3 Kh2 Kf2 Nd4 Neg4+
n2bNQ2/4N1qQ/1q2BN2/R1bN3P/K2n3r/1Rr1r1k1/5b1p/1q3BN1 w - - 0 1 legal: proof: e4 h5 g4 e5 a4 g5 f4 d5 b3 h4 Bb2 b5 axb5 Be6 Bd4 exf4 c4 Bf5 Be3 fxe3 cxd5 Bg6 h3 Bh5 gxh5 g4 Bc4 gxh3 Bd3 Rh6 Bf1 Rh8 d4 Ke7 e5 a5 d6+ Ke6 b4 Kf5 b6 Kf4 d7 f5 d5 c5 e6 h2 b7 a4 e7 h3 e8B e2 Kd2 e1B+ Kc2 a3 Kb3 c4+ Kc2 a2 d6 c3 Kb3 c2 b5 c1B b6 Kg3 Qd2 f4 Bf7 f3 Qh6 f2 Qh7 Bg5 Nc3 Nc6 b8Q Nf6 b7 Nd5 Be6 Nc7 Nd5 Qf6 Qe8 Rc8 b8N Na8 d8N Nd4+ Ka4 Rc3 d7 Bc5 Nf7 Bh4 Qc8 Re8 d8N Qh6 Ndc6 Bd8 Nce7 Qg6 Ba6 f1Q Nd6 Bf2 Nd7 Qfb1 N7f6 Qg7 Bf1 Qb6 Neg8 Re7 Rb1 Re8 Rb3 Re7 Nde8 a1Q+ Ra3 Qab1 Rb3 Rf7 Nge7 Rf8 Nd7 Rff3 N7f6 Rfe3 Ne2+ Kf3 Rg1 h1R Rg5 h2 Qb8 Rg1 Re5 Rg5 Ng1+ Kg3 Rf5+ Kh4 Qf4+ Rg4 Qfh6 Kg3 Rg5 Qgg6 Qf8 Qg7 Ndc7 Bd6 Ra5 Bc5 Ncd5 Rh4
2n3b1/RQ1r2bQ/PR1bRR2/4rb2/1N1B3p/1k4bN/p5RB/1n1K3q w - - 0 1 legal: proof: e4 a5 h4 g5 c4 d5 cxd5 f5 exf5 gxh4 g4 h5 b4 axb4 gxh5 Qd6 Bh3 Qd7 Bf1 Qd8 a3 Nh6 Bc4 Ng8 Ba2 b3 Qf3 bxa2 Qe2 Nh6 Qd1 Ng8 d4 Kd7 f4 Kd6 h6 b5 f6 c5 f7 e5 h7 e4 a4 e3 f5 c4 a5 c3 a6 e2 f6 b4 Qd3 b3 Na3 c2 Rb1 b2 Nh3 Nd7 Rh2 Qe8 Rg2 Bh6 f8Q+ Qe7 f7 Nb6 Qg7 Qe4 f8R Be6 Rf6 Re8 Qb7 Ne7 Bg5 c1B Nc2 Rhg8 h8B Bf4 Nb4 Bg7 Qc2 Qf3 Qh7 Nec8 Bh6 Be5 Bf4 Nc4 Bh2 Na3 Kd2 Re7 Ke1 Qf1+ Kd2 e1B+ Kd1 Bf8 Bg7 Qh1 Bh8 Rd7 Bg7 Ke7 Bh8+ Bg7 d6+ Kd8 d5 Re8 Rgg6 Bg8 Rg2 Bf4 Re6 Bfg3 Rf6 Re5 Re6 Rc7 d7 Bf4 Rf6 Ke7 d8R Rd7 Rdf8 Bfg3 Rb6 Bf4 d6+ Ke6 Rc1 b1B Rc7 Bf5 Rcc6 Ra5 Rf6+ Ke5 Rc7 Kd4 Rcc6 Re5 Rc7 Rf7 d7 Nb1 d8R+ Rd7 Re8 Bfg3 Ree6 Bf4 Qa8 Bfg3 Ra7 Kc4+ Rd2 Kb3 Qb7 Bf8 Bg7 Bd6 Rg2 Bf4 Rf8 Bh6 Bf6 Bg7 Rf7 Re3 Bd4 Re5 Rff6 Bg3+
5r2/1QP2n1p/5n2/1r2kBr1/nn4Q1/KRrBp3/1R1rQ1bN/Q1Q1N3 w - - 0 1 legal: proof: e4 g5 f4 b5 d4 a5 g4 c5 h4 cxd4 a4 f5 b4 fxe4 f5 Bg7 f6 Bh6 Ba3 Qc7 axb5 Qe5 b6 Qc5 b5 Qf5 gxf5 g4 Bb4 Bg5 hxg5 axb4 Kd2 Kf7 Kc1 e5 Kb2 d5 c4 g3 b7 e3 b6 e2 g6+ Kf8 g7+ Kf7 c5 e1N c6 e4 c7 g2 Rh3 b3 Bd3 Nd7 b8Q Nc2 b7 Nh6 Nf3 g1R Qa7 Rg5 b8Q Nb4 Ne1 Rf8 Qg4 Bb7 Ka3 b2 Nd2 b1R Ndf3 e3 Nh2 Rc1 Rb1 Rc3+ Rb3 Bc6 Qa4 Ra5 Qb7 Rb5 Rg3 Rh8 Rg2 Rf8 Bc2 d3 g8B+ Ke8 f7+ Ke7 f6+ Kd6 Qaa6 d2 Bf5 d1R Rb2 d4 Qaa7 d3 Qa5 Rd8 f8Q+ Ke5 f7 d2 Qc5+ Bd5 f8Q Nf7 Qg7+ Nf6 Qe2 Rf8 Qcc4 Bg2 Bd3 Nh8 Be6 Nf7 Qcc6 Rb1 Bc8 d1N Bcf5 Rbc1 Qg6 R1c2 Qgh5 Rd2 Qhg4 Rc1 Qc2 Nc3 Qb1 Na4 Qa1 Rd5 Qc5 Rc3 Qcc4 Rc1 Qc2 Rb5 Qcd1 Rc4 Qdc1 Rc3
5QnB/1kNBRB2/2R1b1N1/Bq1q2b1/n1n1P1nb/2rr3Q/B5q1/3K1n2 w - - 0 1 legal: proof: b4 a5 g4 e5 a4 h5 f4 hxg4 d4 exf4 bxa5 b5 axb5 c5 Qd2 cxd4 Qd3 Rh4 Qd1 Rh8 e4 g5 c4 f5 h4 d5 b6 Kd7 a6 Kc6 c5 d3 a7 d4 b7 d2+ Ke2 g3 h5 g4 h6 g2 h7 f3+ Kf2 d3 Qe1 d1N+ Kg3 f2 Nf3 g1B Bd2 f4+ Kg2 g3 Bb4 d2 Ba5 Be6 Rh6 Nb2 Na3 d1N Qc3 Na6 b8Q Qd5 Nb5 Nc4 Nh4 Nde3+ Kf3 g2 Ke2 Be7 Nc7 Ng4 Ng6 Bg5 Qf8 Kb7 Qh3 Rc8 Rd1 Bh2 Rd4 g1Q Kd1 f3 a8B+ Kb8 c6 Nc5 Rd2 Qg2 Bd3 f1N Bb1 f2 Ba2 Bg3 Rd4 Qe5 Rd7 B3h4 Re7 Na4 Bb7 Ncd2 Ba6 Qd5 B6c4 Ka7 Ne8+ Ka8 c7 Rd8 c8B Rd7 Bcb3 Nc4+ Bd2 Rd6 Bd7 Kb7 Nc7 Qe5 Kc2 Rd3 Bc3 Qd5 Ba5 Nfd2 Kc1 f1Q+ Kc2 Qff5 Kc1 Qb5 Kd1 Qfd5 Na8 N8f6 Nc7 Rg8 h8B Rc3 Qg7 Rd8 Qf8 Ng8 Ne5 Bf7 Rc6 Be6 Ng6 Nf1+ Bd4 Qd6 Qf6 Bf5 Be8 Ncb6 Qf8 Qe6 Bd5 Nc4 Bg7 Qe5 Bh8 Bd7 Bdf7 Be6+ Qd3 Rd4 Bd7 Qf5 Re8 Qfd5 Re7 Ncd2 Qg3 Rdd3 Qh3 Nc4+
8/1b1rnKnk/rn1RnB1P/8/qn1N1N2/BB2QB2/B2Rr1bQ/4n2q w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 h4 gxh4 g3 h3 Ra2 h2 Ra3 Qh4 Ra1 Qd8 Na3 h5 Qd3 h4 Nb1 h3 Qd2 Be7 Qd1 Bh4 gxh4 Qb6 Ra5 Qf6 Ra1 Qd8 Kd2 Kf8 Kd3 Kg7 Ke4 a5 Ke5 f5 c4 d5 b4 a4 e4 d3 c5 a3 b6 a2 h5 f3 b7 f2 b5 d4 c6 d2 h6+ Kh7 b6 f4 c7 f3 Na3 d3 Qb3 d1R Rb1 a1N Bg5 d2 Rc1 Na6 b8B Ne7 Kf6 Qd4+ e5 Nc5 b7 Qa4 e6 Re8 Kf7 Ra6 Ne2 Nc2 Bg2 f1N Nb5 f2 Qe3 Nb4 Nf4 Ng3 Nd4 f1B Rc2 Ngf5 Bf6 Ng7 Bf3 Bg2 Rg1 h1Q Rb2 Rc1 Rd1 h2 Ba7 Rc4 b8Q Bb7 c8B Rc2 Bb6 Rd8 Bc7 Rd7 Bd6 Qf1 Ra2 h1N Rb2 Nf2 Ra2 Ned5+ e7 Nfd3 Rb2 Ne1 Qc7 Rd8 e8B Ne7 Be6 Rd7 Bb3 Qh1 Qb8 Nce6 Bc5 Nbd5 Ba3 Nb6 Ra2 Rd5 Bb5 Rd7 B5c4 Rb2 Qbe5 Rc2 Qh5 Rb2 Qh2 Rc2 Rc1 d1N Bcd5 Nb2 Rd1 Re2 Bdc4 Nbd3 Rad2 Nb4 Ba2 N4d5 Bcb3 Ndc7 Rc1 Ncd5 Rc6 Nb4 Rd6 Ra8 Nd3 Ra5 Nf4 Ra6
Bq1q1br1/3n4/2b1B1R1/QB1bPN1k/1b5B/2Brn1qR/K4q1q/4N2Q w - - 0 1 illegal: No possible last move
KBqnQ1qq/4R1bQ/Q2N2r1/2r1nP2/3R1BN1/2rb2Q1/1k1n4/4qQn1 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b4 a6 b6 Bd7 b7 Nf6 b5 Ng8 b6 Bc8 Bb5+ axb5 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc3 Ke5 g4 h5 d3 c4 Kb4 Kd4 f4 e5+ d6 e3 g5 h3 f5 h2 g6 h4 g7 e4 Ra7 h3 Ka5 c3 d7 b4 Qd2 b3 Ba3 e2 Bd6 e1N Kb5 e3 Qg2 c2 Qe2 c1R Nc3 b2 Ne4 b1N Bf4 Nf6 g8Q Nc6 Ka6 Rh6 Qf7 Qe8 d8Q+ Nd7 Qfh5 Qg6 Qe8 Qg8 Qeg6 Bg7 Nf3+ Kd5 Qf6 Rg6 Ne5 Nf3 Rd1 Kd4 Qf1 e2 Qhh4 h1Q Ng4+ Nde5 Qe6 Ng1 Qe8 Kd5 d4 Kc4 d5 h2 d6 Qf3 d7 Kb3 d8Q e1Q Qd6 h1Q Rd4 Qfc3 Qde6+ Ka3 Qec4 Rb8 Nd6 Kb2 Qcd3 Ra8 Qdg3 Bd7 b8Q Nd2 b7 Nd8 Qc8 Bb5+ Kb6 Qh3 b8B Bd3 Re7 Ra5 Qa6 Qc8 Ka7 Rac5 Ka8 R1c3 Qh5 Re6 Qhg6 Qhh8 Qh7 Rg6
k2b1r1K/BbB5/2B1r1rQ/Rbr1q1b1/3B3P/3n2BN/5b1n/1Q1RbN2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 d4 f5 h4 c5 e4 Kc7 b6+ Kb7 d6 g5 d5 c4 d7 g3+ Kf3 c3 d6 c2 e5 g4+ Ke2 b3 Kd3 f3 Kd4 f4 e6 b2 Ke5 g2 e7 g3 e8Q f2 Nd2 b1R Nh3 g1B Bg2+ f3 Ke6 f1B Kf7 Qc7 Ba3 c1B Qe4+ Nc6 Qe8 f2 Nb3 Bb5 Qde2 f1R+ Qf3 Ra5 Qf6 Be7 Kg7 Bd8 Qe1 Bg5 Nd2 Rh6 Bf3 g2 Bc5 Rg6+ Kh8 Ka8 Bd4 Bf2 Rg1 Ra6 Ra5 Nh6 Qd1 Re1 Nf1 Re6 Qc1 Rb2 Qb1 Rc2 Qf4 Rc5 b7+ Kb8 Qd2 Ne5 Bc6 Be1 Rh1 g1B Qf4 Bde7 d8B Nhg4 d7 Nh2 Qd2 Qd6 Bb6 Bgf2 d8B Nd3 Qe3 Qd5 Bbc7+ Ka7 Bg3 Qf5 Bdc7 Bd8 Qf4 Qe4 Qf8 Qe3 Qh6 Rgf6 Be8 Qe5 b8B+ Ka8 Ba7 Bb7 Bd7 Rad6 Bc6 Rg6+ Qg7 Ref6 Qh6 Rde6 Ne3 Bb4 Rd1 Bbe1 Nf1 Rf8+
r2Bn1BQ/P5rr/1QKB4/qn6/5RNq/Rrr4k/1n1rqbN1/1B1B4 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 d4 Ke7 Kd2 Kf6 Kd3 h5 Kc4 b5+ Kd3 c5 Ke4 c4 a4 c3 e3 Kg5 d6 f5+ Kd5 f4 d7 c2 a5 b3 e4 b2 a6 b4 a7 h4 e5 h3 e6 Kh4 g5 h2 e7 f3 e8B b3 g6 f2 g7 Nf6+ Ke6 Qa5 d8Q Rh7 g8B Nd7 d5 Bc5 d6 Ne5 d7 Nc4 Nf3+ Kh3 Bd3 f1Q Nbd2 b1N Nh4 g1R Qh5 b2 Qb6 g2 d8B Qe2+ Ne4 Nba3 Ba4 b1R Bf4 c1R Bd6 Ne8 Kd5 Rb3 Nf6 Bf2+ Kc6 Rcc3 Ng4 Rd1 Rf1 g1R Bb1 Nb5 Ra3 Rd2 Qe5 Rgg3 Qh8 h1Q+ Ng2 Nb2+ Bc4 Bd4 Rf4 Bc5 Bg8 Qhe1 Nh2 Rg7 Ng4 Qg3 Rf7 Qh4 Rf4 Rb4 Bac2 Rbb3 Bd1 Bf2+
b2R2N1/1N2r1Br/3bb1PK/2n5/1n4N1/B1bN1RnN/3kn1rQ/Q1b2n2 w - - 0 1 illegal: No possible last move, all moves rejected
b3R2q/Nk1K4/1bnBQQ2/R2b2nn/3Q1q2/N3PQ2/qQ2bB1r/n3q3 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Nc3 a5 Ke1 h5 Bh3 f4 Nb1 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Qe7 Bg4 hxg4 Nd2 Qg5 Nb1 Qd8 Kf2 d5 c4 Kd7 h4 Kc7 b4 g5 f6 d3 e3 d2 b6+ Kb7 c5 a4 h5 a3 h6 a2 h7 d4 f7 d3 b5 Nc6 Rh3 Nf6 Ne2 Nh5 Na3 Be6 Nd4 Bd5 Qe2 d1B Bd2 B1b3 Be1 d2 Rg3 Be7 f8Q d1Q Qf6 Qb1 Rg1 Be4 Rg2 Bbd5 Rh2 Rg8 h8Q Bd6 Qhg7+ Bc7 Rh1 Rh8 Qd7 Kb8 b7 Bb6 Rh3 Ka7 b8B+ Ka8 Qde6 Kb7 Bd6 Rh7 Rh1 Qh8 Qd1 Nb8 Nc6 g3+ Kg1 g2 Kh2 g1Q+ Kh3 f2 Qf3 Qb2 Na7 g4+ Kh4 f1B Kg5 g3 Bf2 g2 c6+ Ka8 c7 Kb7 Qee5 Nc6 Qd4 Be2 Kg4 Qe1 Rh4 Ba5 b6 g1N Kg5 Nh3+ Kg4 Ka6 b7 Bb6 c8Q Ng5 Qce6 Qc2 b8Q Qcb1 Qbd8 Kb7 Qb2 Qc2 Qfd4 Qa4 Q8f6 Qa6 Rc1 a1N Rc5 Qc4 Rh1 Qa2 Ra5 Ng7 Rg1 Rh2 Rg3 Nh5 Rh3 B4d3 Rh4 Ba6 Kf5 Bab5 Qg3 f3 Re4 Bbd3 Qg8 B3c4 Re8 Bb5 Qge6 Ba6 Bg1 f2 Qf3 f1Q Bf2 Bac4 Qg3 Bg2 Qf3 Bd5 Qg3 Ne5 Qg8 Bdf3 Bg1 Bc6+ Qf2 Bgd5 Qff4 Qf3 Bf2 Qg3 Qf3 Qh4 Rc5 Ka6 Rb5 Ba8 Ra5+ Kb7 Qgf7+ Nd7 Qg8 Nb8 Ke5 Nc6+ Kf5 Bdc4 Qgd5 Nf7 Ke6 Qf4 Kd7 Ng5 Qde6 Bd5
5rQ1/3qn1NK/brrn2n1/5n1P/2qr4/2kB1qR1/1N2Bq1R/NQN2N2 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 Kd3 Ke7 Ke4 Kd6 Kf5 Kc5 Kg6 Kb4 c4 d5 e4 a5 h4 d3 b3 a4 c5 d2 c6 a3 h5 g4 b6 g3 b7 a2 e5 g2 e6 d4 f5 d3 c7 Nc6 b8N Ra4 f6 Ba6 c8N Qd7 Be2 f1Q f7 f2 f8N Nh6 e7 Nf7 e8B Nd6 Qc2 d1N Ne6 d2 Nb6 Ne3 Rh2 d1R Nc4 Rd4 Nb2 Nef5 Nd2 Rf8 Qb1 Kc3 b4 Nce7+ Kh7 g5 b5 g4 b6 g3 b7 Rac4 Ng7 Rc6 Bg6 Qc1 Nf1 Qf4 Bf7 Qf3 Bfc4 Rb6 Bcd3 Rc6 Nh3 g1Q Nf4 Rb6 Nc6 g2 Na5 Rc6 Ng3 f1Q b8Q Qgf2 Nb3 g1N Qd8 Qc1 Nf1 Nh3 Qe8 Rb6 Qf7 Qc2 Qg8 Rc6 Nfe6 Rb6 Nec5 Nf4 Nc1 Nfg6 N5b3 Rc6 Nbd2 Qa4 Ndb3 Qc4 Nfd2 Qa4 Qc2+ Kb4 Rb1 Bb7 Ra1 Ra6 Rb1 a1R Na2+ Ka3 Re1 Rc1 Qb1 Rcc6 Na1 Rab6 Nc1 Kb4 Rg1 Ba6 Rg3 Kc3 Nf1 Qc4
1Qr2N2/R3nQ1b/rR2nb1k/Bn2K2b/2R2PR1/4N3/r3nr2/3bBnR1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 g4 fxe4 Be2 b5 axb5 Qb6 Bf3 Qc5 Be2 Qf5 gxf5 Nc6 Bf3 Nb8 Bg4 hxg4 Ke2 Kf7 h4 g5 b4 Kg7 c4 d5 f6+ Kh6 c5 a5 c6 e5 h5 e3 Kd3 e2 c7 e1R f7 a4 b6 a3 b5 g3 b7 a2 b6 e4+ Kc2 g4 Rh4 g2 Nh3 g1N Na3 g3 Nb5 d3+ Kc3 e3 Kd4 d2 Qb3 d1B Na3 e2 Nb1 g2 Ke5 d4 Qc2 d3 Qb3 d2 Ng5 Na6 b8Q Rf1 b7 e1N Nc3 Nc5 Nh7 Ra6 Nd5 Nc2 Rg4 Be7 f8R Ne2 Rf7 g1N Ne3 Ncd4 Nf8 Bf5 c8R Nce6 Rc4 Ng3 Ba3 Bh4 Bb4 Rf2 Ba5 N1e2 Rb1 a1R Rbc1 Bdc2 Rg1 d1B Rfc7 Bg6 Qa2 Ne7 Be1 Kg7 h6+ Kf7 h7 Kg7 Ba5 Nb5 Qb3 Rg8 h8B+ Kh6 Be1 R1a2 Bf6 Nd5 Bd8 Bh5 Rf7 Bd3 Bda5 Bh7 Rd4 Rg7 Qc8 Nf1 b8R Nd8 Ra7 Rc7 Rb6+ Rc6 Qa8 Ne7 Qf7 Ne6 Rc4 Rc8 Qb8 Bf6+
r1N5/1bqP1RbQ/r3qBQ1/RK5r/3B1Nr1/1B2bBb1/2qb4/1kq3B1 w - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 h4 f5 c4 fxe4 f4 dxc4 g5 Nd7 f5 Nc5 Nf3 Nf6 Ng1 Ne6 gxf6 g5 Bd3 g4 Bf1 Ng5 hxg5 Ra6 Bd3 Ra7 Bf1 Ra8 Ke2 Kd7 d4 Kc6 a4 Kd5 a5 e5 f7 h5 g6 b5 f6 c5 a6 g3 g7 b3 g8B h4 a7 c3 Ra6 Kc4 d5 b4 d6 h3 d7 b2 Qa4 c2 Rb6 e3 Na3+ Kc3 Qc6 b1Q Qe4 g2 Bh7 h2 Rb7 b3 Bd2+ Kb2 Kd3 c1B+ Kc4 e2 Kb5 e1B Be2 c4 Be3 c3 Bf3 c2 Nh3 g1R Qg6 e4 Nf4 Bg3 Bg8 Qa2 Nc4+ Kb1 Nb6 b2 Bd4 Bg7 f8B e3 f7 e2 Bfc5 e1B f8B Qe6 Bfe7 Bed2 Bef6 Qc7 Qh7 Rg2 Rf1 h1R Rb8 Bb7 Nc8 Rh4 Bg1 Rh6 Bcd4 Be3 Rf2 Bcd2 Bf7 Qe4 Bb3 c1Q Qg6 Q1c2 Qh7 Qe6 Qg6 Bd5 Rb6 Rh5 Ra6 R8h6 Ra5 Bb7+ Qg5 Rb8 a8Q Rg6 Qa6 Ra8 Qf5 Rg4 Qc6 Rgh2 Qe4 Ra6 Qg5 Rh8 Qh7 Rh5 Nd6 Rha8 Nc8 Kc1 Qgf5 b1Q Qg5 Qbb2 Qgf5 Kb1 Qg5 Rh3 Qgg6 Qc1 Nd3 Beh6 Be2 Bdf4 Bh4 Be3 Rf7 Bd2 Bhf6 Rhh4 Bf3 Bhe3 Nf4 Rh5+
1nnN4/4b1bK/4r1R1/3n1R2/P1B1Rn2/N1k1q1R1/1pn1QR2/q1bB2rQ w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 f5 Bb2 h6 Ng1 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kf7 h4 Kf6 a4 Ke5 e4 Kd4 h5 b5 d6 c5 d3 g4 d7 g5 e5 b3 f6 b4 e6 b2 f7 b3 e7 c4 e8B c3 h6 c2 h7 c1B Ra3 Be7 f8R Qb6 Qe1 Ra6 Rh5 Qa7 Rh2 Re6 Bh5 Qb6 Qe2 g3+ Ke1 g4 Rf2 g2 Nh3 g1B Ng5 g3 Nf7 g2 Nd8 Bh2 Rf5 g1N Kd1 Nh3 Bg4 Nf6 Bh5 Rg8 h8Q Bg3 Qh6 Ne8 Bg4 Ng5 Qh1 Nd6 Bh5 Nc8 Ke1 Nf7 Bg4 Ne5 Kd1 Kc5 d4+ Kb4 d5 Nd3 d6 Bgh4 Bh5 Rg1 Bg4 Bhg5 Bh5 Bh6 Bg4 Be3 Bh5 Bd4 Kd2 Bdg7 Bg4 Ne1 Bh5 Ng2 Kd3 Bhg5 Nf7 Qa7 d8R Qc5 d7 B5h6 Nc3 b1N Rg8 b2 Nb5 Nc3 d8R Nd5 Rde8 Qb6 Nd8 Qe3+ Kc2 Bhg5 Rc3 B5h6 Na3 Bhg5 Qd2 B5h6 Bc4 Bhg5 Qe2 B5h6 Rf1 f2 Rd3 f3 Bg4 Bd4 Rg6 Ngf4 Bh5 Bdg7 Rc3 Qb6 Re3 Qa7 Re4 Qb6 Rg8 Qe3 Rg3 Be5 R8g6 Beg7 Rd1 f1Q Rd2 f2 Bg4 Qb6 Bf3 Qa1 Bg4 Nh3 Kd3 f1N Bh5 Nfe3 Bf3 Rf6 Bh5 Qe6 Kd4 Qb6+ Ke5 Kc3 Qf1 Bgf8 Rdf2 Bg5 Bf3 Nc2 Bd1+ Be3 Qe2 Qa7 Rgg2 Bc1 R2g3+ Qe3 Ba2 Rc6 Bc4 Nd6 Ke6 Nc8+ Kf7 Re6 Kg8 Nhf4 Kh7 Bg7
1N1Q2Qr/1RN2qb1/1N2n3/2p2qr1/1b4q1/P1n4k/nNbBR3/B1K1N1b1 w - - 0 1 illegal: No possible last move
kr4n1/1n2PRn1/1K1r4/6b1/1b1R1BN1/3qQ2Q/1b1pn2R/rR1RBqN1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kf2 g5 e4 a5 b4 d5 c4 Kd7 h4 Kc7 b6+ Kb7 f6 a4 h5 a3 f7 d3 c5 d2 h6 a2 b5 d4 c6+ Kc8 e5 d3 e6 Bb4 f8R Na6 h7 Kb8 e7 Nc5 Nc3 Nb7 Qe1 d1R Rb1 a1B Nd5 Bb2 Rf7 Ra1 c7+ Ka8 Ne3 Qd7 Bd2 g3+ Kf1 g2+ Kf2 Qd5 Ng4 Qc4 Qe3 Qe4 Nh3 g1N Be1 Ne2 Ng1 Rd2 Rd1 Qc4 Rh4 Qc2 Kf1 f2 Kg2 f1N Kf3 Qb3 Ke4 f3 Rh2 Qa3 Kd5 f2 Kc6 Nfg3 Rh4 f1Q Rh2 Qa7 c8Q+ Qb8 Qce6 Nh5 Qh3 Qbf4 Qee3 Qf5 Kc7 Ng7 Kc6 Nf6 Kc7 Rd8 h8R Rb8 Rd8 Ng8 Rd4 Qh7 Nf2 g4 Kc6 g3 Ng4 g2 Kc7 Nc5 b7+ Ka7 Nf3 g1B b6+ Ka6 Kc6 Bf2 Ng1 Bh4 Kc7 Bg5 Kc6 Rf8 b8B Nb7 Bf4 Rb8 Re4 Rc2+ Rc4 d2 Kc7 Rc3 Kc6 Rca3 Rd4 Qd3 Kc7 Ra5 Kc6 Rd5 Kc7 Nc5 b7 Ka7 Kc6 Rd6+ Kc7 Rbd8 b8R Re8 Rb5 Nb7 Rb6 Ka8 Rb5 Rdd8 Kb6 Rb8 Rc5 Red8 Rcc1 Rd5 Rb1 Rd6+
Bq2b2k/B1r1RBbb/B1B1nb2/2P3r1/K4Q2/3Rp1N1/1Q5b/nNb2n2 w - - 0 1 legal: proof: g4 c5 e4 h5 b4 hxg4 bxc5 e5 d4 f5 f3 Qc7 f4 fxe4 f5 e3 f6 e4 f7+ Kd8 Bd2 Qe5 Bc1 Bd6 dxe5 a5 f8R+ Ke7 Rf6 Ke8 Rg6 Be7 Rb6 Bf8 Rb4 axb4 Qd4 e2 Kd2 Kf7 a4 e1B+ Kd1 b5 c4 g5 Kc2 Kg7 Kb3 d5 h4 g3 a5 g2 a6 g4 a7 g3 h5 Bc3 c6 Rh7 c7 Nh6 c5 Bd7 c8B Nf5 Ra6 Ne3 Nf3 g1B Rc6 g2 Rh2 Na6 Rh4 Nc2 Ba3 Nc7 Nh2 Be3 Ba6 g1B Bc1 Ne6 Bg2 Na1+ Ka2 Bh6 Nd2 b3+ Ka3 b2 Rc8 b1B Nhf1 Bh2 Rc7 Rb8 Qb4 d4 a8B d3 Rh3 Be7 Bf3 Rg8 Bh1 Be3 Rf3 Be8 h6+ Kh8 Ra7 Rg4 Qd4 Kg8 Rd7 b4+ Ka4 Rf7 h7+ Kg7 Qc4 b3 Qb4 b2 h8Q+ Kg6 Qf6+ Kh7 Qb3 Bc2 Bg2 b1N Ng3 Rg5 Bb2 Kg8 Qf4 Kh8 Bh1 Bcd4 Bc3 Bf8 Ba5 Bg7 Bb6 Re7 Ba7 Bc3 Nc4 d2 Na3 d1Q Bg2 Nd2 Nb1 Qe2 Bh1 Bd3 Qb2 Nf1 Bg2 Bc1 Re3 Qe1 Re2 Nd8 Rd2 e3 Bgc6 Bh7 R2d3 Beg6 e6 Bcf6 Rc7 Qc3 Rb7 Qe5 Rbd7 Rf7 e7 Ne6 e8B Qb8 Rb7 Re7 Rbd7 Be4 Bh5 Beg6 Rb7 Be8 Bf7 Rd7 Rc7 Rd8 Rcd7 Rc8 Re7 Rc7
Nq1Brrn1/Q3b3/n3R2P/B1bb2B1/1Rp2rk1/2b1Q3/7K/NBBq3r w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 Kg2 g5 h4 c5 e4 f5 d4 g3 b6 g4 h5 b3 d6 Ke6 d7 c4 d5+ Ke5 b7 b2 d6 Ne7 h6 Kf6 e5+ Kg5 e6 Ng8 e7 Na6 e8Q Be7 Nd2 b1R b8B Bb7+ Qf3 Bc6 Ne2 Bd5 Bc7 Qb8 Ra4 Ra1 Kg1 g2 Qa3 f3 d8B f2+ Kh2 f4 d7 f3 Nf4 Rb1 Bd3 f1Q Bc2 f2 Nb3 Qd1 Na1 f1R Rb4 Rf3 Re1 g1B+ Kg2 g3 Ba5 Be3 Ne6+ Kg4 Nc7 B3c5 Re6 Rf4+ Be4 Bd4 Qe3 Bc3 Qf7 Qd3 Kg1 g2 Kh2 Qd1 Bc2 Bd6 Bg5 Be7 Be4 g1B+ Kg2 Nf6 d8B Re8 Qg7 Bf2 Kh2 Ng8 Qgd4 Ref8 Qa7 Re8 Qd3 Bfc5 Qe3 Qb6 Bd3 Rc8 Na8 Qb8 Ba3 Rc1 Bb1 Ref8 Bdb6 Rce8 Bd8 Qd4 Bb2 Rcf1 Ba3 Qd1 Bc1 Rh1#
1n1BK3/6rR/1N2B2p/NnPQqb1R/3rR1b1/3q1knR/2Qn3b/6Rb w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 Kd5 h3 c4 h6 f4 e4 g4 d6 c5 b3 b6 e3 b7 b2 g5+ Kg7 g6 Kf6 g7 e2 Nc3 e1Q Na4 b1B Nb6 d3 Nf3 d2 Bc4 h2 Qc2 d1N Nd4 Ra7 Nb3 Nf2 Na5 Ne4 Rg1 h1B Ra3 Qd7 Rh3 Be7 Bb3 Bd8 Ba2 Bc7 Be3 Qb5 Bf2 Qd3+ Bd4+ Kf7 f6 Bg4 Bb3 Kg6 f5+ Kg5 Ke6 Kf4 Kf7 d5 Ke8 Be5 f7 Ng3 f8R Kf3 f6 Bd6+ Be3 d4 f7 Bf4 Be6 Nf6+ Kd8 Rh7 g8Q Ne4 Re8 Rg7 f8R Nd2 Rf5 Qee2 Bf2 Qe5 Rfh5 Ra6 Nac4 Ra4 Na5 Qde4 Re7 d3 Ke8 Rd4 Be1 Nc4 Rc7 d2 Rd7 d1N Qf7 Nc6 b8R Qd3 Rbb7 Nd2 Re7 Nc3 Qf5 Qee4 Qd5 Nb5 Bf2 Be5 Be3 Nb8 Bg5 Rg6 Rh7 Rg7 Bd8 Bf4 Re7 Bd6 Qdb3 Qe5 Qd5+ Qde4 Rf7+ Qf4 R3h4 Ngf1 Qb2 Qf5 Qba2 Bh2 Rh3+ Ng3 Qb2 Qf4 Rff5 Bd3 Re5 Qe3 Qc2 Qe2 Qd7 Q4e3 Qd6 Bdf5 Qd7 Qf4 Re4 Qd3 Qd5 Qe5
1qq1N2N/3r4/4pb1q/1Nb3nK/P1q3Q1/N1RrQ1R1/k3Br2/3rBnN1 w - - 0 1 legal: proof: g4 d5 e4 g5 h4 f5 c4 a5 b4 axb4 f3 Be6 f4 dxe4 fxg5 f4 h5 Bd5 h6 Nxh6 cxd5 Ng8 Ke2 Kf7 a4 c5 d4 h5 d6 Ke6 d7 Kd5 g6 Kc4 g7 b5 d5 b3 d6 h4 g5 h3 g6 b4 Nc3 e6 Ba3 b2 Rh2 b1Q Bc1 b3 Rf2 e3 Kf3+ e2 Kg4 f3 Qd2 b2 Qd4+ Kb3 Bg5 e1B Qe4 c4 Qc6 h2 Qc7 h1Q Bc1 Ne7 g8N Rh3 g7 Qc8 d8N Ra7 d7 Nbc6 Qd6 Nf5 Qf4 Bc5 Nf7 Ng3 d8N Rd7 Rg2 f2 Nb5 c3 Nfd6 c2 Qe3+ Bc3 Nc4 Nd4 Bd2 c1Q Be1 Nf3 Nca3 Ng5 Be2 f1R Nf7 Rf2 Nf6 Nf1 g8Q Rhf3 Ne8 Qh6 Rg3 Qcc2 Bd3 Bf6 Nh8 Qcc1 Be2+ Qc3 Qf4 Rfd3 Qe3 Qcc2 Qg6 Qc4+ Qge4 Qbc2 Rc1 b1R Q4f4 Qb2 Rc3+ Ka2 Qfd4 Rbd1 Qde4 Qf8 Kh5 Qbb4 Qg4 Qg7 Nd4 Qbb8 Ndb5 Qh6+
1Q1R2BB/4q1N1/p3b1P1/3b2k1/q2bRb1r/Q2br3/K1N1N1b1/1q2N1Nn w - - 0 1 illegal: No possible last move
4b3/1Qq1nnK1/QR1n4/B2bP3/nR1bbB1B/k1N2q2/1b1B1prB/3N4 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Nc3 a5 Ke1 h5 Bh3 f4 Nb1 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Qe7 Bg4 hxg4 Nd2 Qg5 Nb1 Qd8 Kf2 Ke7 e4 Kd6 h4 Kc5 c4 Kb4 f6 d5 f7 g5 h5 a4 c5 d3 e5 g3+ Kf1 f2 Kg2 f1B+ Kf3 a3 c6 g2 h6 d2 b3 a2 c7 d4 Ke4 f3 b6 g4 h7 d3 b7 g3 Rh6 Bc5 f8B Nc6 b8B Na5 Ba7 Be6 c8Q Nc4 Nc3 Bd5+ Kf5 Qc7 Kg6 Ne7+ Kg7 Bd4 Qe2 d1Q Bd2 Ka3 b4 Nd6 Nh3 g1N b5 g2 Rb1 a1B b6 Bb2 Nf2 Nh3 b7 g1N b8B Bg2 Qb7 Ng5 Qf1 Qb3 Nfd1 Ngf7 Bb6 Ne2 Ba5 Be4 Ba7 Bd5 Bf4 d2 Bh2 f2 Rf6 Nb5 Rb6 Nbd6 Rb4 Bge4 Bc5 Nf4 Qfa6 Nd3 Bcb6 Nc5 Ba7 Ng6 Be7 Rc8 h8B Na4 Bg5 Ne7 Bgf4 Re8 Na2 Qf3 Nac3 Rd8 Rb6 Ba1 R1b4 Rg8+ Kf6 Rg2 Bg7 Nc5 Bh6 Na4 Bg5 Bb2 Bh4 Bg6 Ne3 d1B Kg7 Bdc2 Ned1 Qd8 Bb8 Qc8 Bc7 Bce4 Bd8 Qc7 Bd2 Ng8 B8g5 Ne7 Bgf4 Nh6 Bfg5 Be8 Bdf4 Nhf7 Bd2 Ng6 Bgf4 Ne7+
1r3rRq/Rn1Nk3/KRbrPrq1/1N3Q2/2n1q3/3pR3/B2nR1q1/1Q3B2 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 Kd3 d5 h4 a5 c4 g4 b4 g5 e4 g3 e5 g4 c5 g2 b6 g3 h5 a4 b7 a3 f5 a2 b5 Kd7 b6 Ke8 f6 Qe7 h6 Nc6 b8R Nd8 c6 Bb7 c7 Bc6 c8B Nb7 h7 Nh6 Rh2 Nf7 Nc3 Rf8 h8R Nfd6 Nb5 Nc4 Rg8 Qe6 f7+ Ke7 Bd7 Qg4 Rc8 Rb8 Be6 Qf4 Qb3 Qg4 Re1 a1Q Qb1 Qa8 Rh7 Qh4 Rhg7 Qh8 Re3 Qa4 Ne2 g1N Nec3 g2 Ne4 Qb4 Nf6 Qa4 Be2 f1Q Nd7 f2 Rh7 Qa8 Rd8 Qe1 Bf1 Nf3 Rc8 g1Q Rc7 Qg2 Rh2 Qgg7 Rg2 Nfd2 Rh2 Nba5 Ra7 Qf6 b7 Qe2+ Kc2 d3+ Kc3 d4+ Kb4 Qg6 Bd5 Qf3 e6 Qfg2 Kc5 Nb6 Ba2 Nbc4 Re2 Q2e4 Rh3 Qeg2 Rhe3 Q2e4 Bg2 f1R Bh3 Rf6 Bf1 Ndb3+ Kb4 d2 Ka4 d1R Kb4 Rbd8 b8R Nbd2 Rb6 Nb7 Ka4 Qb8 Kb4 Qbg3 Ka4 Rb8 Kb4 Rfe8 Ka4 Qgg2 f8Q+ Kd8 Qc5 Ref8 Qf5 Ke8 Kb4 Ke7 Na3 Bd5 Kb5 Bc6+ Ka6 d3 Qb2 Rb1 Qa1 Rb5 Qb1 Rd5 Nb5 Rd6
B4n1b/1q4PB/3n1Kr1/k1pB4/2R1R1Qb/B1n2NNb/5p2/2Q1rBnn w - - 0 1 legal: proof: f4 e5 a4 exf4 b4 b5 axb5 g5 h4 gxh4 b6 d6 c4 Ke7 c5 Bf5 b5 Ke8 Qc2 Bg4 bxc7 Be6 c6 Bc8 Qc5 dxc5 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 a4 d4 a3 e4 a2 g4 h3 b6 h4 g5 h2 d5 h3 d6 f3 g6 f4 b7 f2 Bg2 f1N Nf3 Qd7 Nbd2 Ne7 Kf6 Ng3 e5 Rg8 e6 Nef5 e7 Ne2 Ne4 Nc3 Re1 h1N Ba3 h2 Bf1 Nhg3 Rac1 Nge2 Ng3 Ng1 Re4 a1B Rc2 h1N Rc1 Na6 b8Q Ra7 Qb7 Nb8 Qb2 Rb7 Qd2 Rb1 Rc2 Re1 Qc1 Ba6 c8B Qb7 Be6 Nd7+ Kg5 Bg7 c7 Bh8 c8B Nf8 Bd5 Bb5 Bce6 Bd7 Bc6 Rg7 Kf6 Bb2 Bcd5 Bc8 Bg8 Kd7 e8B+ Kd8 d7 Kc7 Rh2 Kb6 Bh7 Nd6 Rc2 Ka5 Bef7 Ba1 Bc6 Bb2 Bfd5 Ba1 Ng5 f3 d8Q+ Qc7 Qd7 f2 Ba8 Qb7 Nf3 Bb2 Qe7 Bh3 Qd7 Ba1 Rc4 Bb2 Re2 Ba1 Ree4 Bb2 Qd1 Bc1 Qg4 Bg5+ Ke5 Bh4 Qc1 Rf7+ g7 Rf4 Qf5 Rg4 Qh5 Rg6 Qg4 Rg5+ Kf6 Rg6+
k1bNr1R1/3q2K1/2N2Pb1/1BQnr1p1/B2N1r2/Nq2bp1Q/6Rn/2b2N2 w - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 b5 f4 Bb7 b3 Bc8 h3 b4 Bb2 fxg4 Bf6 gxh3 a3 Bg4 axb4 Bf5 b5 Bc8 f5 e6 Bg5 e5 Bf4 exf4 Kf2 Kd7 Kf3 g5 Kg4 a5 Kh5 c5 e4 Kc7 d4 Kb7 b6 h6 Kg6 h2 b4 a4 d6 c4 e5 c3 f6 c2 d7 c1Q d5 a3 e6 a2 e7 h5 e8B h4 b5 h3 d6 Rh5 Na3 Qe3 Qc1 Na6 Ne2 Nb4 Qc5 Rh4 Ng3 Nd5 Rg1 h1B Rg2 h2 Kf7 Be7 Kg7 Qb3 Rc1 Qc7 d8Q a1B Qd7 Bd4 Qh3 Nh6 d7 Ng4 d8N+ Kb8 b7 Qd7 Re1 Be3 Bc4 Bc1 Nf1 Bd6+ Re7 Be5 Be2 Bd4 Bd1 Bde3 Bc2 Qc3 Ba4 Qb3 Rf7 Ne7 Rf8 Nd5+ Qe7 Ra5 Rg8 Ka7 b8N Ka8 b6 Rc5 Rf2 Be4 Rg2 h1R Nbc6 f3 Nd4 Bg6 Bb5 Nh2 b7+ Kb8 Ba4 Rf4 Bb5 Ka7 b8N Ka8 Nbc6 Rg1 Ng3 Re1 Nf1 Nc7 Ba4 Re5 Bb5 Nd5 Ba4 Qe6 Qc5 Qd7+ Ne7 Qc7 Rc2 Bg1 Qd7 R5e3 Qh3 Ree4 Beb5 Qd7 Rg2 Re6 Bc4 R1e5 Ba6 Bge3 B6b5 Qd6 Nec6 Re8 Nc4 Qe6 Na3 Qd7+
2K4R/5Q2/pr1qq2P/3rR3/BkrR1pR1/1bbn2QN/3b2rB/3R1N1n w - - 0 1 illegal: No possible last move
Bq6/1nP1kB2/1B1q1n1Q/4rbBr/3NR1Q1/bb2K1Bp/1n1Np3/n6R w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 d5 g4 e5 c4 h5 f4 d3+ Kf3 e4+ Ke3 h3 f6 b3 c5 h4 f5 h2 f7+ Ke7 g5 d2 g6 b2 b6 d4+ Ke2 h3 c6 e3 g7 Qd6 b7 Ra5 Bg2 Na6 b8B Nc5 Nf3 Nf6 g8B Rh5 Ra4 Nb7 c7 Rd5 Ba7 Re5 Bb6 Bd7 Qg1 d1N Nbd2 b1N Kd3 e2 Rb4 Ne8 Rc4 Na3 f6+ Ke6 Rb4 Nc2 Ra4 Na1 Rc4 Be7 f8B+ Kf5 f7 Ke6 Bh6 Nf6 Bg5 Bf8 Bh4 Ke7 Bg3 Be6 Nf1 Bg4 Bg5 Nb2+ Kd2 d3 Re4 Bf5 Ke3 d2 Nd4 d1B Nd2 Bb3 Bf3 Qd8 Qg2 Qb8 Qg1 Kd7 Bg2 Be7 f8Q Ba3 Qh6 Kd6 Bf7 Ke7 Qf2 Qd8 Qf4 Qd6 Rf1 h1Q Qg4 Qe6 Bf3 Qd6 Rc1 Qg2 Rh1 Qf1 Bg2 Qb1 Ba5 Nc5 Rf1 Nba4 Rh1 Ba2 Bf3 Qb8 Bb6 Bb3 Bg2 Re6 Re5 Nb2 Ba8 Nb7 Re4 Re5
5b1b/Q4n2/3NN2n/1QBp1Q1Q/Bp2bRP1/2rn2Rn/3Q1r2/qk2bK2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 h4 f5 exf5 g5 a3 bxa3 hxg5 Bg7 Bd3 Bh6 Bf1 Bf8 g4 Kf7 f4 h5 c4 e5 f6 Ke6 c5 Kd5 g6 Ke4 c6 d5 f7 b5 g7 a2 c7 h4 f5 d3 f6 d2+ Kf2 b4 Ne2 Kd3 Qa4 h3 Rg1 h2 Na3 e4 Nc4 Bf5 c8Q Rh3 Qca6 Qa5 Q4b5 Kc2 Qa7 Nc6 Rg3 Nh6 g8Q Nd8 Nd6 h1N+ Kg2 d1N Qh8 e3 Nf4 e2 Ne6 e1B Be3 Rc8 Bc5 Nhf2 Bd3+ Kb2 Kf1 Rh2 Bc2 Nd3 Ba4 Be4 Rc1 a1B Rc4 N1f2 Rd4 Ng8 Qh5 Nh6 Rc4 Nh3 Rd4 Bg7 f8Q Kb1 f7 Rd2 Qg8 Bf8 Qgg5 Ra2 Rc4 Bh8 Qd2 Rb2 Bb3 Qa1 Ba4 Bh1 Rf4 Be4 Be3 Rc3 Bc5 Bfg7 f8Q Ndf7 Qc8 Bf8 Qcd7 Nd8 Qh7 Ndf7 Q7f5 Ra2 Qe3 Rg2 Qd2 Rf2+
b2BbkrR/P1n1n3/2N1R2q/BpQ1r3/5b1b/BB1pN3/1B1Qn1K1/n7 w - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 h5 exf5 a6 b5 axb5 g4 bxc4 gxh5 c3 f4 g5 Kf2 d5 h4 e5 a4 b5 h6 c2 h5 g4 h7 d3 f6 d2 a5 d4 f5 g3+ Kg2 e4 f7+ Ke7 a6 e3 h6 e2 a7 e1B f6+ Kd7 Nf3 Bd6 f8B Ke8 Ra6 Bf4 Bfa3 Ne7 f7+ Kf8 Nc3 Bd7 Re6 Na6 Ne5 Rg8 h8B Be8 h7 Qb6 Nc6 Nc7 Bcb2 c1N Bc4 d3 Bf6 Nb3 h8B Na1 Bb3 Rg5 Rh4 Re5 Nd5 Rc8 Qc1 d1B Ne3 Rb8 Qd2 Bf3+ Kh3 g2 Bc3 Na6 Ba5 Nc7 Rh6 Bh4 Bg5 Rc5 Bhb2 Re5 Bf6 Be2 Rh7 g1N+ Kg2 Bg4 Bg5 Ne2 Rh8+ Kg7 Rd6 Bc8 Rdh6 Bb7 Re6 Ba8 Ng4 Bd7 Ne3 Rg8 Bf6+ Kg6 f8Q Be8 Qh6+ Kf7+ Qg5 Ng6 Bd8 Ne7 Qe1 Kf8 Qd2 Qa6 Rg6 Rd5 Nb8 Qf6 Nc6 Qg7 Rd6 Qh6 Re6 Bg6 Qe5 Rc5 Qec3 Re5 Qc5 Be8+
B3b1QR/1N2NNn1/1K2N3/Q2qbbp1/7b/brq5/k2Bp1Pq/4RnN1 w - - 0 1 legal: proof: e4 b5 d4 c5 a4 cxd4 axb5 f5 c3 fxe4 h4 dxc3 h5 g5 Qd2 a5 Qe2 Ra6 Qd1 Rg6 hxg6 Bh6 Qd6 Bg7 Qd1 Bf8 Ke2 h5 Ke3 e5 f4 Ke7 b4 Ke6 g7 d5 b6 d4+ Kf2 Kd5 b7 c2 f5 h4 f6 e3+ Kf3 a4 b5 d3 f7 Kc4 Ke4 Kb3 b6 h3 Qe2 a3 Rh2 d2 Qf3 d1B Qg3 a2 Ne2 Nh6 g8Q Na6 b8N Nb4 b7 Nf5 Nbc3 Nd5 Na6 Ng7 b8N Ba3 Ng1 Bh5 f8N Be8 Kd3 e4+ Kd4 Bf5 Be2 Rh6 Bd1 Rb6 Nc6 Rb8 Rh1 h2 Bf3 e2 Ne6 e1B Qe5 e3 Ne7 e2 Nb5 Ne3+ Nd6 Nf1 Bd2 c1Q Ba8 Qc3+ Kd5 Kb2 Nac5 Rb3 Rd1 Qa5 Nf7 Qb5 Kd6 Qc4 Kc7 Q4d4 Qf4 Qd5 Qb4 Bg3+ Kb6 Bf2 Nf3 Be1 Nb7 Bg3 Rg1 h1Q Re1 Qh4 Rh1 Qf4 Rh5 Bh4 Rh7 Qh2 Ng1 a1B Nfd6 Qc2 Nf7 Ka2 Rh8 Be5 Qb5 Qc3 Qb4 Bb5 Qa5 Be8+
KQn1qqkb/1R2B1bn/2QrP3/6Np/3Nb2p/1B3Q1Q/bR1Q4/1q1q4 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 h4 exf4 b4 g5 Ra5 gxh4 Ra4 a5 Ra3 a4 Ra1 Ra5 bxa5 Bb7 Qd2 Ba6 Qd1 Bc8 Kd2 h5 Kd3 f5 Kc4 Kf7 Kd5 d6 c4 d3 g4 a3 e4 d2 a6 a2 e5 f3 b6 f4 e6+ Kg7 a7 f2 a8Q f3 b7 Nh6 g5 Qe8 c5 Kh7 g6+ Kg8 c6 Rh7 c7 Bg7 Na3 Ng4 Rh2 Nc6 b8Q Na7 Bc4 f1B Rb1 a1B Nb5 f2 Ba3 Bad4 Qe1 d1Q Qd2 Bdf6 Rb4 Qb1 Nh3 Bd3 Ng5 f1Q Re2 Ba6 Bb3 Nc8 Nd4 Be5 Rb5 Qff8 Rb7 Bh8 Rh2 Rd7 Kc6 d5 g7 Bac4 Be7 Be4 Rg2 Nf6 Rh2 Nd6 c8Q Nh7 Kb6 Bf6 Qc6 Rd8 Qa3 Nc8+ Kc7 Rd6 Qba8 Be5 Kb8 Nb6+ Ka7 Bf6 Qb8 Nc8+ Ka8 Be5 Qe1 Bf6 Rb2 Be5 Qd2 Bf6 Ba4 Ba2 Qf3 Be5 Bb3 Bf6 Nb5 d4 Qh3 d3 Nd4 Rd7 Qbf4 Rd6 Qff3 Be5 Qde3 d2 Qef4 d1Q Qd2 Bf5 Qfc3 Rd8 Ngf3 Be4 Qce3 Ng5 Qef2 Kh7 Qfg3 Bf6 Qb8 Rd6 g8Q+ Kh6 Qf7 Bfg7 Qff4 Kh7 Qf6 Kg8 Qff4 Nh7 Ng5 Qd3 Qff3 Q3b1
Nkq1QnN1/4n3/1pr2n2/N3P1K1/NbBp2Qq/1r1N4/2nR3R/q1B3q1 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 h3 g5 Qd3 f5 Qd1 b6 Rh2 Bb7 Rh1 Bf3 gxf5 g4 Kd2 g3 Ke1 Bg4 hxg4 Qf6 Na3 Qe7 Nb1 Qd8 Kd2 h5 e4 d5 c4 Kd7 a4 Kc7 c5 d3 a5 h4 c6 b3 a6 b2 e5 f3 Ke3 d2 Kf4 d4 g5 g2 f6 h3 f7 f2 g6 h2 g7 Qc8 a7 Ne7 g8N Rh6 Ra2 Nd7 Qg4 d1N Ne2 g1Q Nbc3 b1Q Rd2 Qa1 Kg5 Ne3 Nf4 Nc2 Bc4 f1N Na4 Ng3 Nd3 Re6 Rg2 Nh5 Rd2 Bg7 f8Q Nhf6 Qf7 Bf8 Qe8 Qe1 Rg1 h1Q Rgg2 Qhg1 Rge2 Nf5 Rg2 Bb4 Rh2 Nf8 Rdg2 Qa6 Rd2 Rc8 a8N+ Kb8 Nc3 Ne7 c7+ Ka7 Na4 Rc6 Bd5 Rc3 Bf7 Rb3 Bc4 Rd8 c8N+ Kb8 Nd6 Qc8 Nb7 Rd6 Na5 Rc6 Qh5 Qeg3 Qe8 Qh4+
n1R2R2/R3B3/1p2Q3/1rpRbPb1/1k1rQNnK/3n4/b2rB1r1/N2R3n w - - 0 1 legal: proof: b4 d5 h4 f5 e4 fxe4 c4 g5 cxd5 gxh4 b5 b6 a4 Qd7 a5 Qc6 a6 Qb7 axb7 a6 Nc3 axb5 Nb1 b4 g4 Kd7 f4 Kd6 Kf2 Kc5 g5 h5 d6 e5 d3 e3+ Kg2 e2 g6 e1B g7 e4 d7 e3 Kh3 e2 f5 b3 d8R b2 d4+ Kb4 d5 c5 d6 Ra4 d7 Bg3 Nc3 e1N Nce2 b1R Nd4 Nd3 Qf3 Nh6 g8Q Be5 Qgd5 Ng4 Bf4 Rg8 Qe6 Bh6 Nb3 Na6 b8R Nc7 Qg2 Na8 Be2 Ra2 Qec6 Rd2 Rf8 Rbb2 d8R Be6 Ra5 Rg7 Na1 Ba2 Qg6 Rd7 Ra6 Rd4 Bg5 Rb1 Qe4 Rb3 Kg2 h3+ Kf3 h4 Rd5 h2 Qe6 h3 Ra7 Rbb2 Be7 Rbc2 Rbc8 Rb2 Bd1 Rg2 Ne2 Rd2 Rf1 h1R Nf4 h2 Be2 Rhg1 Rf2 Rb1 Rf1 Rf2+ Kg3 h1N+ Kh4 Rg2 Rad7 Ka3 Rc1 Rb5 Ra7+ Kb4 Rd1 Bg5+
q5k1/1QrB2N1/5rRq/5q2/NN2pn1Q/2n1q3/PBpNqR2/q4NqK w - - 0 1 legal: proof: c4 a5 f4 f5 b4 axb4 e4 fxe4 f5 d5 g3 dxc4 Kf2 g5 Ke2 g4 Ke1 Bh6 Ke2 Bd7 Ke1 Bf4 gxf4 g3 h3 Ba4 Qf3 Bd1 Qb3 Bf3 Qd1 Bg4 hxg4 Kf7 Qe2 Kf8 Qd1 Ke8 d4 Kf7 d5 c5 d6 h5 g5 e5 d7 b5 f6 g2 Kf2 e3+ Kf3 e2 f5 e1Q Qd6 c3 Bb2 c4 Na3 h4 Nb1 b3 Qc5 c2 Qb4 c1Q Nd2 c3 Ne2 g1Q Ng3 h3 Rh2 Ne7 g6+ Kg8 g7 Nbc6 Rf2 h2 Qh4 b4 Bh3 Nd5 Ngf1 Na7 Rb1 Qa5 d8N Nf4 Nc6 Nb5 Bg4 Rh6 f7+ Kh7 f8Q Rc8 g8N Qa8 f6 Rc7 f7 c2 Qfe7 Nc3 Bd7 h1Q+ Rg2 Kh8 f8N Qe2+ Kg3 e4 Nf6 Qc5 Rf2 Qf5 Ne8 Kg8 Ng7 Rf6 Nfe6 Qhf3+ Kh2 Qfe3 Nf3 Qcd2 Nc5 Qd6 N3d2 Qde6 Ba1 b2 Na4 b3 Kh1 Qd6 Re1 b1Q Nb4 b2 Rd1 Qc1 Re1 b1Q Bb2 Qeg4 Ree2 Qa1 Rg2 Qda6 Ref2 Qae2 Rg1 Qgh5 Rg6 Qh6 Qf7+ Kh7 Qd5 Qcb1 Qb5 Kg8 Qb7 Qbe1 Rf3 Qg3 Rf2 Qg1+
q3b2B/n4r2/2N1B3/N1NpNN1k/4nR1p/3Kn1Q1/1p1bP1rR/1Q2q2r w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 a4 c5 d4 cxd4 f4 b5 axb5 axb4 Rh3 exf4 Rh2 Qa5 Rh1 Qd8 Kd2 f5 c4 Kf7 g4 Kg6 b6 d5 c5 h5 c6 h4 b7 d3 c7 f3 Na3 b3 Bh3 f2 Nc4 f1R Nf3 f4 Rh2 Bd7 c8N Bg7 Ra4 Ra7 Nfe5+ Kh7 g6+ Kh6 g5+ Kh5 N8b6 f3 Na5 f2 Rf4 Be8 Bb2 Bh6 g7 Nc6 b8N Rf7 g6 Rh1 N6d7 f1Q Nc5 Na7 Qb1 Nf6 Nbc6 Rg8 Be6 Qa8 Kc3 d2 Kd3 d1N Ba1 Rh8 g8Q Ne4 g7 Qe1 Bc3 b2 Bd4 Bd7 Qb8 Re8 g8N Ne3 Nge7 Rg8 Nf5 Rg2 Qg8 Be8 Qg3 Nd1 Ned7 Ne3 Bh8 Bf8 Nde5 Bd6 Ncb3 Bb4 Nc5 Bd2
7B/1nr3Qn/qB1P2p1/2b1K2Q/1N2q1QQ/1R1p4/qR2pb1N/1Q1rk2n w - - 0 1 legal: proof: e4 c5 g4 b5 d4 cxd4 a4 h5 axb5 hxg4 Be2 d5 Bh6 f5 Bg5 d3 Bc1 d4 Bf3 Be6 Bg2 Bd5 exd5 Rh4 Bf3 Rh8 Be4 fxe4 Kd2 Kd7 h4 Kd6 b4 Ke5 f4+ Kf5 c4 a5 b6 e5 b7 g3 b5 g2 h5 a4 b6 a3 h6 a2 c5 g6 h7 Qc7 c6 Nf6 Rh3 Bc5 d6 Qc8 c7 Ra7 Nf3 Kg4 f5 g1B Nc3 Na6 b8Q Bf2 Rb1 a1Q b7 Qa2+ Rb2 Rf8 h8B Nh7 f6 Rf7 Rh2 Kg3 Rh3+ Kg2 Qa4 Kf1 Nd5 Rg7 f7 e3+ Kd1 d2 Kc2 d1N Kd3 e2 Ke4 e1Q+ Be3 Qe2 Nh2+ Ke1 f8Q Qe6 c8Q Rc7 Nb4 Qd3+ Kf3 e4+ Kf4 Qda3 Qg7 d3 Rb3 Qg4+ Ke5 Qg2 Bd4 e3 Qg4 e2 Rh5 Ra8 Qbg8 Rf8 b8Q Rf4 Be3 Rc4 Qab5 Rc1 Qgd8 Qa8 Qdh4 Qc6 Ke6 Qe4+ Qe5 Bd4 Nd5 Qg2 Rc3 Bg3 Qg7 Nf2 Qa5 Qa4 Qb1 Nh1 Qc5 Qc6 Rc2 Bf2 Rb2 Rd1 Rf5 Qca4 Qa5+ Bc3 Bb6 Bb4 Rf4 Qf3 Qc5 Ba3 Rfb4 Qb5 R4b3 Qa4 Qb5 Nc5+ Ke5 Nb7 Ke6 Bb4 Qc5 Qa6 Qa5 Bd2 Nb4 Be3 Qah5 Bc5 Ke5 Qe4+
8/pR1b2P1/1BRqR1p1/r1QB2K1/rq4bR/np5n/2NR3Q/1k1nq2N w - - 0 1 legal: proof: b4 b5 g4 d5 e4 dxe4 g5 g6 a4 c5 axb5 cxb4 h4 Bg7 h5 f6 h6 fxg5 hxg7 g4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 d4 e5+ Ke3 h5 f4 h4 b6 b3 b7 h3 f5 g3 f6 g2 f7 h2 f8Q Rh4 c3 Bg4 Ra6 Nd7 b8R Ne7 Qd2 Nb6 Na3 Qd6 Rb7 Rc8 Nh3 g1N Bg2 Rc5 Nf2 Nh3 Nc2 Kc4 d5 Ra5 Ba3 Bd7 Bc5 Bg4 Re1 Bd7 Nh1 Rf4 Rf1 Rh4 Rf4 Nf5+ Ke2 Ne3 Bf3 Qc6 d6 Nd1 Qc8 Bg4 d7 Qd6 d8R Bd7 Qc7 Bg4 Qe7 Bd7 Bd4 e3 Bc6 Rg4 Kf3 e2 Qg5 e1Q Bd5+ Kb5 c4+ Ka4 c5 Nc4 c6 Na3 Qg2 Qeb4 c7 Rh4 c8R e4+ Kg3 e3 Bb6 e2 Rc6 e1Q+ Kf3 Rg4 Rd4 Rh4 Rh8 Re4 Rh4 Rg4 Rd2 Rc4 Nf2 h1B Qe3 Re4 Qc5 Rf4+ Kg3 Bg4 Qh2 Be4 Rh5 Bef5 Kh4 Bd7 Rh7 Ng1 Kg5 Nh3+ Kh6 Rd4 Nh1 Qb5 Ne3 Qdg3 Re6 Nc4 Nc2 Qd6 Bc7 Rf4 Nb4 Ka3 Nc2+ Ka2 Rc6 Na3 Bb6 Kb1 Rh8 Rfa4 Rh7 Nf4 Kg5 Qb4 Rh4 Nh3+
1n2nn2/1bq1B1k1/Nn6/K1B1P1pB/p1B1RB2/r2b4/1QQrp2r/1R2N3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 f4 hxg4 e3 b5 axb5 e5 Ra4 Bd6 Ra3 e4 Ra1 Be5 fxe5 dxe3 c4 Kf8 b4 g5 h4 d5 b6 a5 h5 f5 c5 d4 h6 a4 h7 f4 b5 f3 b7 g3 c6 d3 b6 g2 c7 e2 Kd2 e1N Kc3 e3 Kb4 d2 Bc4 e2 Rh4 f2 Na3 f1R Nf3 g1N Re4 Nf6 Qc2 d1B Rb1 Ne8 Nb5 Nh3 Bf4 Ng2 Ne1 Nh4 Nf3 Nd7 b8B Kg7 b7 Ng6 Ne1 Rf3 Ba7 Ra3 b8Q Bb7 c8B Ngf8 Bc5 Ra6 Nc7 Rd6 Na6 Qc7 Kb5 Rd2 Kb4 Bc6 Qb6 Nb8 Ka5 Bd5 Bg4 Bb7 Bfe3 Nf4 Bh5 Nd5 Bf4 Qc6 Qbb2 Nb6 Qcc1 Bc2 Qd1 Bd3 Qdc2 Rg8 h8B+ Kh7 Bcf7 Qc7 Bf6 Rh8 Bfe7 Kg7 Bc4 Rh7 Bf3 Rh4 Bh5 Rh2
k4N2/bR2Q3/1q3qr1/p1RB2n1/1pP1r1pR/1Rn1R1N1/Qn4r1/3q1BK1 w - - 0 1 legal: proof: e4 h5 b4 f5 exf5 b5 c4 c6 g4 hxg4 a4 Qa5 Ba3 bxa4 b5 c5 Bb4 cxb4 d3 Bb7 c5 Bd5 Qc1 Qb6 Qd1 Bc4 dxc4 Qd8 h4 g5 f4 d5 Kf2 Kd7 f6 Kc8 b6 Kb7 h5 e5 f5 a5 f7 e4 f6 d4 h6 a3 h7 a2 Na3 d3 Rh5 d2 Qb1 d1Q Nc2 Ra6 c6+ Ka8 c7 Nc6 c8B Bc5+ Nd4 Nce7 f8R Nd5 f7 Nc3 Re8 Nh6 f8Q Nf7 Ne2 g3+ Kg1 g2 Be6 e3 Qe7 g4 Ng3 e2 Rg5 Rf8 h8R e1N Rh4 Nd3 Qc2 Qb8 Rb1 a1Q Qa2 Nb2 Rf5 Ng5 b7+ Ka7 Bd5 Rg6 Re5 Rf4 Rc8 Bb6 Re3 Re4 Rc5 Qc7 b8R Qb7 Kh2 g1R Ne6 Rg2+ Kh1 Qc7 Rb7+ Ka8 Nf8 Qd8 Rh3 Ba7 Rh4 Nba4 Rb3 Qb6 Rh3 Qb2 Rh4 Qf2 Qc2 Qff6 Qa2 Re2 Kg1 Nb2 Rd3 Rd2 Re3 Rg2+
k2r1q1B/3B1Q2/1qpP2Bp/pR1BBQ2/1n6/3bnK1n/RN5r/2r3Nq w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Ra4 Be7 Ra5 g4 Ra1 Bg5 hxg5 fxg3 b4 Kd7 d4 a5 e4 f5 Ke2 g2 e5 h6 b6 Kc6 b5+ Kb7 e6 c6 e7 g3 e8B f4 g6 c3 d5 c2 g7 Na6 Na3 Be6 Bb2 c1Q Ra2 Ra7 Nc4 Ka8 Bd7 Ne7 g8B Nf5 Qb3 Nb4 Rh5 Rb7 Kf3 Ne3 Bd3 Qf8 Bg6 Bf5 Bc3 Bd3 Nb2 Rb8 B8f7 Rg8 Bh8 Rd8 Qc4 Rg7 Bg8 Rf7 Qe4 Re7 Qf5 Re5 Qf7 Rg5 Qf5 Rg4 Rg5 Rh4 B8f7 Rh2 b7+ Ka7 b8B+ Ka8 b6 Qd1+ Ne2 g1Q Bbe5 g2 d6 Qb1 Bd5 Qh1 Nc4 Qb2 Ng1 Qd4 Nb2 Qc5 Kf2 f3 Kg3 f2 b7+ Kb8 Qf7 f1R Rf5 Re1 Kf3 Rc1 Rg5 Ka7 Qf5 Qb6 b8Q+ Ka6 Qc8+ Ka7 Qa6+ Kb8 Qc4 Ka8 Qcf4 Qc5 Qf7 Qb6 Q4f5 Re8 Nh3 Qb8 Qe4 Ka7 Bef6 Rd8 B5e6 Rc8 Rb5 Ka8 Qf5 Qb6 Bd5 Rd8 Be5 g1N+ Kg3 Nf3 Ng1 Ng5 Kf4 Nh3+ Kg3 Ng2 Kf3 Ne3+
2q4k/r1pR2nN/3prbKQ/nqN2r2/6R1/3BRB1R/2P1qp1n/4Q1R1 w - - 0 1 legal: proof: d4 a5 f4 b5 a4 g5 axb5 gxf4 b6 e5 Ra2 exd4 Ra4 Bc5 Ra1 Bf8 g4 Bh6 b4 Qf6 b5 Bf8 Ba3 Ba6 Bb4 Bb7 h3 Bf3 g5 Bg4 hxg4 axb4 Ra5 Qe7 Ra1 Qd8 Kd2 h5 Kd3 f5 e4 Kf7 e5 Kg7 e6 b3 g6 b2 b7 f3 b6 f2 e7 d6 e8R f4 Ke4 d3 Kf5 h4 g5 f3 Nc3 b1R Nh3 d2 Na4 Rc1 Re3 Rh5 Qe1 d1Q Nc5 Nc6 b8Q Qe2 b7 Be7 Qa7 Rh6 b8R Nf6 Rg1 Ng4 Raa3 Nh2 Qb7 Qb5 Bd3 f1Q Qb6 Kg8 g7 Qe2 Rc8 Qe8 Rd8 Re6 Rd7 Bf6 Rg4 Qf8 Kg6 Na5 Qc6 f2 Qch1 Rd1 Be4 Qa6 Rg1 Ra7 Rf3 Qfc8 Rae3 Qab7 Kh5 Rd5 Bd3 Nf1 Kh6 Re7 Kh5 Kf7 g8B+ Kg7 Be6 Qb1 Bg4 Kh8 Kh6 Qb3 g6 Re6 Ng5 h3 Nh7 h2 Bh5 Rf5 g7+ Kg8 Rfg3 Qbb8 Bf3 Qb5 Qg2 h1N Qh3 Nh2 Qh4 Rf4 Rh3 Ng3 Qg5 Nf5+ Kh5 Rfe4 Qh6 R4e5 Rd8+ Kf7 g8R Rd5 R8g4 Rde5 Qf4 Ng7+ Kh6 Rf5 Rd7+ Kg8 Kg6 Kh8 Qg5 Re7 Qh6 Re6
4n3/3k4/Q1rBnq2/1b1pr3/RBNn3P/NR4np/p4RRQ/1Rn2rK1 w - - 0 1 illegal: No possible last move, all moves rejected
5b2/NP1k3r/b1p1qnQ1/3BR2b/K4n1R/B3pbQ1/5pNB/1n3BBb w - - 0 1 legal: proof: f4 b5 e4 g5 h4 gxh4 a4 a5 axb5 a4 c4 d6 b4 Ra6 c5 Nd7 b6 Nb8 b5 Ra7 e5 dxe5 c6 Rb7 cxb7 exf4 Be2 f3 Bc4 Bg7 Bf1 Bf8 d4 f5 Kd2 h5 Kc2 e5 g4 c6 g5 e4 g6 e3 g7 f2 d5 h3 d6 h4 Qg4 h2 Nh3 f4 Nc3 a3 Kb3 a2 Qg6+ Kd7 Ka4 f3 Ba3 Nf6 g8B Qe8 Nf4 h3 Bd5 Rh7 Ng2 Na6 b8B Qe6 b7 Nb4 b6 Nd3 Nb5 Nf4 Rc1 a1N Na7 Nb3 Rc5 Nd2 Ra5 Kd8 d7 Nb1 Rc5 Ke7 d8B+ Kd7 Bbc7 N4h5 b8Q Ba6 b7 Nf4 Bd6 Be2 B8c7 Ba6 Be2 f1B Bec4 Bd3 Bb5 Bf5 Bf1 Bg4 Be5 Bh5 Bcd6 Nd3 Bg3 Nf4 Bf2 Bh6 Qbg8 Bf8 Qg3 Qf5 Q8g6 Qe6 Rg1 h1B Rc4 Ne2 Rh4 h2 Nf4 Re7 Qh3 Rf7 Rg5 Rh7 Bg1 f2 Be5 Be4 Ng2 h1B Beh2 Bef3 Qg3 Nf4 Rf5 Bh6 Re5 Bf8
4q3/B1K1kq1r/Q4pB1/N1rP1Q1r/1QQ2n1p/3bp3/1QR1r1n1/4NrR1 w - - 0 1 legal: proof: a4 b5 axb5 d5 h4 g5 c4 dxc4 d4 gxh4 Kd2 Qd7 Kc3 Qf5 e3 Qxf2 d5 Bg7+ Kb4 Bd4 exd4 Qf6 Kc3 Qf2 g4 c5 b4 h5 d6 e5 d5 a5 b6 a4 d7+ Ke7 b7 h3 g5 a3 g6 e4 b5 e3 b6 h2 g7 a2 Nf3 Nh6 g8Q Nc6 b8Q Ba6 b7 Ne5 Qd2 Nd3 Qg1 Nf4 Bb2 Nf5 Qg4 Nh4 Na3 Nhg2 Qc7 Rab8 Rc1 a1R Rg1 h1R Rc2 Ra2 Ne1 Rh7 Bd3 Qf3 Qg5+ f6 Qe2 Qe4 Qf5 Qe6 Qa5 Qf7 Qb4 Rh2 Ba1 Rb2 Be4 h4 Qd3 Rbh8 b8Q Bb5 Qb6 Rh5 Qa6 R8h7 Nb1 Qe8 Nd2 Rb1 Nb3 Rb2 Qb6 Rb1 Na5 Ba6 Qa3 Rb5 Qb4 Qf7 Qg4 Qe8 Bg6 Qf7 Qgf5 Qe8 Kb2 c3+ Ka3 Qf7 Qb2 c4 Ka4 Qe8 Rc1 c2 d8Q+ Kf8 Qdc8 c3 Qdc4 Ke7 Rd1 c1R Rd2 c2 Qa8 Bb7 Qaa6 Rb1 Re2 c1Q Rc2 Qd1 Q6d4 Qd3 Qdc3 Qe4 Q3d4 Qe6 Qd2 Q6f7 Qbb4+ Kd8 Bd4 Bc8 Qb2 Ke7 Ba7 Rd1 Qfd3 Bg4 Qf5 Be2 Qdc3 Bd3 Q3b3 Rb6+ Qbb5 Rb7 Kb4 Ra1 Kc5 Rb6 Q5b4 Rc1 Nf3 Rf1 Ne1 Rb5+ Kd4+ Rc5 Qb4c3 Rb5 Qd2 Rh3 Qdc3 Rhf3 Qca3+ Rb4 Kc5 R3f2 Qab3 Rb8 Qbb6 Re2 Q6b4 Rc8+ Kb6+ Rc5 Qb4c3 Rb5+ Kc7 Qfg8 Qd2 Qgf7 Qdb4+ Rc5+
4b1b1/1b3npk/Q2q1Q1b/1r4QN/r1QQ1N1R/pBp4P/4q2b/1K1B3R w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 b3 f5 Nc3 h6 Ba3 f4 Nb1 Nc6 Be7 Nd4 Bg5 Nf5 gxf5 hxg5 e4 Kf7 d4 a5 Kd2 c5 Kc1 g4 e5 a4 e6+ Kf6 b6 f2 b7 c3 b8Q f3 d5 a3 e7 c4 e8B c2 d6 g3 d7 g2 b4 Rh3 b5 Ra6 b6 Rh4 b7 Rh8 Bf7 Qe8 d8Q+ Qe7 Ne2 g1Q Qbc7 Rh5 b8Q Qg4 Qbb7 Ra4 Ng3 Nh6 Be2 f1B Nc3 f2 Qa6+ Kg5 f6 Qd6 h3 Bb7 Qd4 Be7 Bd1 Qe2 Bd5 Kg6 f7 Kh7 f8Q Nf7 Rb1 Bg2 Rb6 f1B Rb4 Bf3 Be6 Bfc6 Nd5 Be8 Nf4 Rb5 Ngh5 Bfg2 Qcc6 Bd5 Qcc5 Bh4 Qg5 Bg3 Qfe7 Bh2 Qef6 Qee5 Kd2 c1B+ Kc2 c3 Kb1 Qe2 Qc7 Bg2 Beb3 Bgd5 Qcc5 Nd8 Qcc6 Bg8 Qcc4 Nf7 Ng2 Be4+ Qdd3 Re5 Qg4 Bc6 Qcb5 Bh6 Qgg5 Bf5 Rh4 Bfe4 Qc4 Be8 Ngf4 Rf5 Qcd4 Bb7 Q3c4 Rb5
4B1B1/pq4rR/Q2b2K1/2rB1B1p/1Q4Pp/2RnrNBr/2q3Nb/2k2r2 w - - 0 1 illegal: No proof kernel
q1K1B1R1/3N2B1/br3r1b/2BQ4/qRP1bnpQ/2b5/1r2p1p1/B1kN2B1 w - - 0 1 illegal: No possible last move
2N2NKR/n2Q2bp/q1nP1q1k/2N1N1N1/1rRqbp2/8/bb3QBp/3B4 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 h4 gxh4 f4 dxc4 g5 Bb7 g6 Bf3 f5 Bc6 b3 Bg2 Bb2 Bb7 Be5 Ra6 Bf4 e5 g7 Rg6 fxg6 exf4 Kf2 Ba6 Ke1 Bc8 Kf2 c5 Kf3 f5 d4 a4 e4 c3 e5 a3 d5 a2 e6 c2 e7 c1Q d6 c4 b6 h3 b4 h2 b5 c3 b7 c2 b6 Nh6 g8N Nd7 b8N Bb7+ Nc6 Bc8 b7 Nf7 b8N Nb6 g7 Nd5 Ne5 Qb2 Qe1 c1B Nd2 Ba6 Ne4 Nc7 Nc5 Bc4 Nbd7 Qd4 Qf2 Bb2 Nh3 Nb5 Ng5 Na7 Bg2 Be6 Rac1 a1Q Rhe1 Ba2 Rc4 Qc8 Re3 Nd8 Rb3 Ndc6 Rb8 Ba3 Nh6 Qab2 g8B Bg7 Nf8 Qa1 Bd5 Bb2 Be4 Qf1 Bc2 Qd8 Bd1 Rg8 Rc3 Qa6 Rc4 Rh8 Ned7 Rg8 Ng4 Rh8 Nb6 Rg8 Nh3 Kf7 Ne5+ Kf6 e8Q Qe7 Ng1 Kg5 Qd7 Qf6 Nh3+ Kh6 Ng5 Rh8 Nfg6 Rc8 Nf8 Rc7 Rd8 Rb7 Nc8 Rb6 Nfg6 Rb7 Rh8 Rb4 Nf8 Qd5+ Ke2 f3+ Ke3 Qd3+ Kf4 Qd4+ Kg3 f4+ Kg4 Qe7 Kf5 Qd8 Qe2 f2 Ke6 f1B Qf2 Bd3 Kf7 Qf6+ Kg8 Be4
bK1NB3/3bP2Q/B2kqr2/p1r1R1qR/1q2b2n/3N1p2/pR2QR1b/4R3 w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 h4 Bg7 a4 bxa4 h5 Bd7 b3 Bf8 Bb2 Bc8 Bf6 Nc6 f3 Ne5 f4 gxf4 g5 Ng6 hxg6 f3 Qc1 exf6 Kd1 f2 Kc2 f5 Qd1 f4 Kb2 Be7 Kc1 Bf8 Kc2 Ke7 Kc3 f5 Kb4 h5 Kc5 a5 Kc6 f3 d4 a3 e4 a2 g7 f4 g6 h4 b4 h3 e5 h2 e6 Ra7 b5 Rh7 b6 Nf6 g8Q Rf7 b7 Ne4 b8R Rg7 d6+ Kf6 d5 Ke5 d7 Ng3 d6 Qh4 d8R Qg4 d7 Nf5 Ba6 f1Q Nh3 f2 Nc3 Qfe2 Nd5 f1B Nf2 Rf7 g7 Nh4 Qh7 Rf6 g8B Bg2 Re8 Be4 d8R Bd6 Rb2 Qe1 e7 Qb4 Rf8 Qe6 Bf7 Rb7 Be8 Rb5 Re1 h1B Nd3+ Kd4 Rh8 Beg2 Re3 Qe4 Nc5+ Ke5 Qh6 Bch3 Ne6 Bf3 Kd7 c5 Kc8 c4 Rd7 c3 Nd8 c2 Re2 Bhg4 Rf2 c1Q+ Qc2 Bc7 Qe2 Rc5 Rab1 Qg1 Re1 Bh3 Qg6 Qg5 Rh5 Qe3 Qh7 Bd6+ Nc7 Bb7+ Kb8 Ba8+ Kc8 Bhc6 Nce6 f3 Nf4 Qee4 Nd3+ Kd5 Nb7 Ke6 Rd8 Bh2 Rd5 Qee3 Rf5 Qe5 Nd8+ Kd6 Bb5 Be4+ Kb8 Qd5 Re5 Qdb3 Qg6 Bd7 Qh7 Bab7 Ba6 Qe6 Bc4 Ba8+ Bb5 Qc3 Ba6 Qb4+
4n3/1knNP1Np/1B6/1qKn1Q1p/p1n4R/1r1b2b1/3Qq1BQ/R1Q1b2Q w - - 0 1 legal: proof: d4 a5 h4 e5 a4 b5 axb5 c5 f4 cxd4 e3 g6 h5 e4 Ke2 Ra6 Kd2 Re6 Ke1 Re5 fxe5 gxh5 Kd2 dxe3+ Ke2 Qc7 Ke1 Qd8 c4 f5 Ke2 d5 b4 Kd7 g4 Kc7 c5 f4 c6 d4 e6 a4 g5 Qd5 g6 Be7 b6+ Kd6 b7 Kc7 g7 Bd8 e7 Nf6 g8Q Qa2+ Nd2 Qe6 b5 Na6 Nc4 Ne8 Qg4 Qf6 Rh3 Bf5 Bg2 Kb8 Nb6 Nac7 Rh4 f3+ Kf1 f2 Ke2 f1N Nf3 Qe6 Ng5 Nd2 Qh1 Nc4 Nd7+ Ka7 b6+ Ka6 b8Q d3+ Kf1 d2 Ke2 d1N b7 Qf6 Ne6 Nc3+ Kf1 e2+ Kf2 Qh6 Be3 N3d5 Ng7 e1B+ Ke2 Qd6 Bb6 e3 Qe4 Rf8 Kd3 e2 Kd4 Qf6+ Qe5 Bd3 Kc5 Qg6 Qd6 Rf3 Qc8 Bg3 Qf4 e1Q Qc1 Qe2 Qd2 Nb5 Qc7 Be1 Qcf4 Bc7 Qf5 Bcg3 c7 Qge6 c8Q Nbc7 Qc1 Qg6 Qd8 Re3 b8Q Qe6 Ba7 Qf6 Qbb2 Qg6 Qbd2 Kb7 Qdc2 Qa6 Bb6 Be4 Qa2 Rb3 Qad2 Bd3 Qh2 Nf6 Qf8 Nfe8 Qf3 Bc2 Q8f5 Be4 Qf1 Bd3 Qfh1 Qb5+
2B2rn1/rpP1K1B1/2Q2BRN/nQ6/3N1rq1/B3n1p1/2Rbn1pk/2Bq4 w - - 0 1 illegal: No possible last move
1r1N1Rn1/p1Rb4/1r2NK1B/2Rq1Q2/b1P2p2/b1QR2p1/Rr3Bb1/4r2k w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Nc6 Kd2 Nce7 Ke1 Nf5 gxf5 Qe7 Bg4 hxg4 Kf2 Qf6 Ke1 Qd8 Kf2 Ke7 e4 Kd6 b4 Ke5 h4 g5 c4 d5 b6 d3 h5 d2 b7 d4 b8R d3 b5 Nh6 f6 Rg8 b6 Bd6 f7 Rh8 f8B Kd4 e5 Ke4 b7 Rg8 e6 Nf7 e7 Rg7 e8R+ Be5 h6 Nd6 h7 Rd7 h8Q Nf5 Nh3 Rd6 Bh6 Bd7 Rf8 Bb2 Na3 Rb6 Qc2 d1R Ra2 Re1 Rc8 Rb8 Rc7 Ne7 Nb5 Ba3 Be3 Rb1 Nd4 R1b2 Ne6 g3+ Kg1 g2 Kh2 g1R Qc3 g4 Bf2 Ra1 Rd1 Rab1 Rd2 Re1 Rf5 Qg8 Nd8 Qf7 Rfc5 Qd5 Bd4 f2 Ng5+ Kf5 Nge6 Ke4 Rd1 g3+ Kh3 Kf3 Kh4 f1B Bf2 Kg2 Qb1 d2 Qf5 Kh1 Kg5 Bg2 Kf6 Rc8 Rda1 d1B b8R Bc2 Rd1 Bca4 Ra8 Rcb8 Rd3 R6b3 Nf7 R8b6 Rf8 R3b5 Nd8 Rb8 Kg5 R5b6 Kf6 Ng8+
NBk1Kq2/1r1NB1p1/n2q1rP1/q3N3/qNN2p2/p4R2/1r1Q1n2/R5Qr w - - 0 1 illegal: No possible last move, all moves rejected
n2R2R1/4P2R/Bn6/2R2p2/B3p1NK/krq1Q1pQ/pq3qr1/n1Nb3R w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 e4 h5 g4 hxg4 Ba3 e5 axb5 Bd6 b6 dxe4 b5 e3 Bb4 cxb4 Bd3 e4 Bf1 Be5 fxe5 Qf6 Ke2 Qg5 Ke1 Qd8 d4 Ke7 c4 f5 h4 g5 e6 Kd6 c5+ Kd5 e7 a5 h5 g3 h6 b3 c6 g4 c7 a4 b7 g2 b6 e2 Kf2 Kc4 Kg3 Kb4 h7 e1N d5 b2 d6 a3 d7 a2 Qf3 Nc2 Bb5 Ra3 Kh4 g3 Qe3 Qf8 d8R Bd7 c8B Qg7 Ne2 g1Q Nbc3 b1Q Nc1 Qb2 Ba4 Qf2 Nd1 Na6 b8Q Nc7 Ba6 Qgc3 b7 Na8 Qbf4 Bb5 b8R Nf6 Qg4 Rb3 Qh3 Ka3 Rg8 Nd7 Rbd8 Ndb6 Rb1 Qg1 Nf2 Be2 Ng4 Bd1 Ra1 Qf2 Rb1 Qe5 Ra1 Qbc3 Rb1 Qb5 Rb2 Na1 Rc2 Qb2 Rcc8 Q5e5 Rc5 Qec3 Rg6 Rf8 h8R Rf6 Rh7 Rd6 Rgg8 Rd2 Rcc8 Qh2 Rc5 Rg2 Qh6 Qg1 Qe3 Qgf2
2k5/2n1pNp1/r1q1rrb1/1Qr2Qr1/3p1B1R/Q2p4/P3Q2n/2NRQBK1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 Ne2 f5 exf5 c5 Nf4 cxd4 Ne6 Rh4 Nxf8 Rh8 f4 d5 Kf2 b5 h4 g3+ Kg1 d3 c4 g2 h5 d4 f6 b3 h6 b4 h7 b2 c5 b3 c6 Ra4 c7 Nc6 f5 Bd7 c8Q Ne5 Qa6 Qa8 f7+ Kd8 f6 Qc6 Ng6 Bf5 Bf4 Ng4 Rh4 Nh2 Nd2 b1R Qe2 b2 Nb3 Re1 Ne5 b1R Qb5 Ra6 Nc1 Bg6 f8Q+ Kc7 f7 Nf6 Qe8 Nd5 Qa8 Rc8 h8Q Rf8 Qa7+ Kc8 Qac5 Rb3 Qa3 Rc3 Qhh5 Nc7 Qf5+ Ne6 Qfe4 Nc7 Q4e3 Rc5 Rb1 Re8 f8Q Rd8 Qf6 Rd6 Nf7 Re6 Qf5 Rd1 Kf2 g1R Qe1 Rg5 Q3e2 Rh5 Kg1 Rd2 Qf6 Rhf5 Qg5 Rff6 Qf5 Rb2 Nb3 Rbc2 Rd1 Re5 Nc1 Rcc5 Qfg4 Rh5 Qf5 Rg5+
3q2N1/R5P1/p1k4q/4p2n/K1p1RNp1/1qQ1B1b1/Q3BbR1/1bRRq2n w - - 0 1 legal: proof: g4 h5 a4 d5 e4 g5 c4 dxc4 h4 f5 f4 fxe4 f5 b5 f6 bxa4 Bd3 Rh6 Na3 Rg6 Bf1 a6 Rh3 Ra7 Nb1 Rb7 Rh2 Rb5 Rh1 Rf5 gxf5 g4 Bh3 Bg7 Bf1 Rg5 hxg5 Bf8 b4 Kd7 d4 c5 Kd2 e5 Kc2 h4 d5 h3 f7 h2 d6 a3 g6 a2 b5 c3 Kb3 e3 b6 c2 b7 c4+ Ka4 e2 f6 e1Q g7 Ne7 Nc3 Nec6 Be2 Nb4 Qd4 Qh4 Be3 c1B Nd5 Qg3 Ne7 Qc7 Nh3 Qb6 Rd1 h1Q Nf4 Qd8 Ng8 Kc6 d7 Nd3 Qc3 Bc5 f8Q Nf2 f7 Qh6 Re1 Bb6 Qfa3 Nh1 f8R Qgh3 Rb1 a1Q Rf7 Bd2 Red1 Be1 Rbc1 Bg3 Qa2 Qb1 Rd4 Qf1 Re4 Qe1 Bd2 Bbf2 Be3 Qdh4 d8R Bf5 Rdd1 Nd7 b8R Qd8 Rb2 Nf6 Rbd2 Nh5 Ra7 Qbb8 Red4 Bb1 Re4 Bh4 Bf1 Bfg3 Rg2 Bf2 Bd3 Bhg3 Be2 Qb3+
b5N1/2q4B/1r1b1nn1/5r1N/Kr2qP2/2NR3n/bbk1qRbB/2NN2QQ w - - 0 1 illegal: No possible last move, all moves rejected
1N1b3r/1K2nQr1/1Nq5/1r1PNrRN/1n2Bq1k/1b6/qBN1Q3/1R2r1rn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 a5 g4 f5+ Ke5 c5 b4 h5 e4 a4 b6 a3 b7 a2 b5 h3 b6 h2 Qf3 h4 Ba3 h3 Nd2 c3 Bb2 c4 Qf2 c2 Qg3 c1R Ne2 f3 Rg1 h1R Qf2 h2 Rg2 f4 Rb1 c3 Nc4 Qc7+ Kd5 a1Q e5 c2 e6 Rg1 e7 h1N e8N Nc6 b8N Ra7 b7 Be7 Nd7 Re1 b8N c1R Nde5 Bd8 Nf6 Qa2 Nh5 Nge7+ Kc5 Rcd1 Nb6 Be6 Rg3 Bf7 Bg2 Bb3 d5 Kh4 g5 Nb4+ Kb5 Qd6 g6 Rd7 Qe3 f2 g7 f1Q g8Q f3 Qf7 f2 Be4 Rb7 Rg8 Rg7 Qd3 Qh6 Nd4 Qf4 Nc2 Qg1 Ned7 f1R Qe2 Qg6 Ne5 Rg1 Kc5 Ref1 Kb5 Rde1 Kc5 Qc1 Kb5 Rf5 Kc5 Qgg5 Kd6 Qgf4 Kc5 Rgh7 Rg5 Rg7 Kb5 Ra7 Kc5 Ra5+ Kd6 Rb5 Kd7 Ng6 Kc8 Ne7+ Kb7 Qcd2 Ra1 Qc3 Rb1 Qc6+
2Q4r/qQ1Rr1qq/1P3NBk/1R1q4/5N2/Q2K2n1/bb1B1Qq1/Qnrq2b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 Kg7 c4 h5 c5 a5 e5 d3 g5 f3 e6 f4 b6 f2 c6 a4 e7 f3 e8Q a3 b5 d4 c7 a2 g6 h3 b7 h2 b6 h4 Qda4 h3 Qe7+ Kh6 g7 Nc6 b8Q Qd7 Qe4 Nce7 Qd1 Nf6 g8Q Ra7 Qed5 Nh5 Qdb7 Ng3 Nc3 Nd5 Nge2 Bc5 Qb3 Qg7 Qd1 Be6 Nb1 Nc3 Bg2 f1Q c8Q f2 Bc6 Qg2 Bf3 f1Q Bd5 Qff7 Re1 h1Q Be4 h2 Qgf8 Bb3 Qa6 Re7 Bg6 Qgd5 Qaa7 Qhg2 Qa3 h1Q Qbb7 Qhh3 Rg1 Qhd7 Qf1 Qg8 Q8f5 Q8h7 Q5f2 Qa4 Nf4 Qa7 Qe1 Bc4 Qe5 Bb3 Rd1 Bc4 Ke1 Bb3 Nd2 Nb1 Ne4 Bc4 Rd2 Bb3 Rb2 Bc4 Kd1 d2 Kc2 d1R Rb5 d3+ Kb2 d2 Kc2 Bd4 Nf6 Bb3+ Kd3 Rg1 Bb2 Rc1 Bc3 d1Q+ Bd2 Rg8 Qfe2 Bg1+ Qd4 Rh8 Qf2 Nc3 Rb1 a1B Rb2 Nb1 Rc2 Nf5 Rc7 Bb2 Rd7 Ng3 Qb4 Ba2 Qa3 Qc5 Qdc3 Bd5 Qa1 Ba2 Qa3 Qcd5+
N1b5/4br1k/2Rrr1NN/2K2R1P/Qn1nnN2/1r1rB2N/q3q1b1/1n1B2Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 Kf7 h4 Kg6 c4 a5 h5+ Kh7 c5 g3 e5 f3 c6 f2 c7 g4 e6 g2 b6 g3 b7 a4 e7 f4 e8N f3 b5 a3 b6 a2 Qa4 Nc6 b8Q Nb4+ Kd2 d3 Ke3 d2 Kd4 d1R+ Bd2 Ra6 b7 Qe7 Nh3 g1R Ng7 g2 Qa7 Re6 b8N Nf6 Qb3 Ne4 Bc4 f1R Ba6 f2 Be2 Qe8 Qg3 Be7 Nd7 Rg8 Nf5 Rgg6 Qe3 Rd6 Qb3 Rge6 Nb6 Qb5 Bg4 Qe2 Nc3 Rb1 Qc2 Rb3 Rc1 a1Q Na8 Qa2 Nh6 Rd1 Qb1 Rgf1 Qa4 g1N Bf3 Rfe1 Rh2 f1B Rf2 Bg2 Bg4 Rf1 Rf5 Rf3 Rc2 Rdf1 Be3 Rg3 Rg5 Rf7 Rf5 Nd2 Qd1 Nb1 Kc5 d4 Nd5 d3 Ndf4 Nf3 Qg1 d2 Rc1 d1N Rc4 Ba6 c8N Nd4 Rc3 Nf2 Rc2 Bf6 Ne7 Bc8 Neg6 Be7 Rc3 Qeb2 Bd1 Qe2 Bd2 Rd3 Be3 Bc6 Kb6 Be4+ Rc6 Bg2 Kc5 Ne4+
4Kb1n/1rn2B1b/NPqB2B1/4Qbnr/kq6/2R2RB1/rr1N3Q/1Bb2b2 w - - 0 1 illegal: No possible last move
BK1q4/1b5P/2N2R2/1rB2b2/N3n1nr/b1b1Q3/nb1b1RNN/Q1b2nNk w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 Kh4 b6 e5 f5 a5 b7 g5 c5 d5 c6 g3 h3 g4 f6 e3 Kd3 a4 b5 a3 b6 e2 c7 e1B f7 g2 Bg5+ Kg3 h4 e4+ Kc2 a2 Kb3 e3 h5 d3 h6 d4 Kc4 e2 Kb5 d2 Qb3+ d3 Rh5 d1N Bf6 Bc3 Qc4 e1B Be7 d2 Qd3+ Ne3 Rh2 d1B Nd2 Na6 Kc6 Nc5 b8Q Bc2 b7 Ra5 Ndf3 Ne4 Qa7 Bed2 b8N Ngf6 Bc5 Rb5 Qa6 Bf5 c8N Bd6 Rd1 a1B f8N Bab2 Ng6 Ba4 Be2 Nf1 Nb6 Bb3 Kb7 Bd5+ Ka7 Bb7 Nc6 Rh7 Ngh4 Bf8 Bd4 Bfa3 Qe3 Rh8 Na4 Bdc1 Nh3 g1N Rf2 B3d2 Bc4 Ne2 Bd5 N2c3 Nhg1 Na2 Bc5 Rh7 Ng2 Bdc3 Nfh4+ Kh2 Nhf3+ Kh1 Nh2 g3 Re1 Ng4 Ree2 Be6 Rf6 Bf5 Rf2 B3d2 Ne1 g2 Qa5 Rg7 h7 Rg6 Qac3 Rh6 Qe5 Rh4 Q5d4 Qb6+ Kb8 Bdc3 Qd1 B1d2 Qa1 Bbc1 Nh3 g1B Ng2 Qa5 Rf3 Bf2 Ng1 Bc3b2 Rf4 Bfe1 Rf2 Qd8+ Ka7 Bdc3 Nb8 Ba6 Ba8 Bb7 Nc6 Qa5+ Kb8 Bed2 Ngf3 Qb6 Ng1 Qd8+
4r2Q/3Kr3/k1r1B3/1r4b1/n1RB1brR/1Qr1Nb2/1R1bNPR1/2bn1qR1 w - - 0 1 illegal: No possible last move, all moves rejected
1Q3K1k/1rR1bB1b/1Qr2b2/r1rN4/b1Q1Q2q/n2Nrb2/nP3B2/b1QR4 w - - 0 1 legal: proof: f4 d5 h4 g5 a4 gxh4 c4 dxc4 f5 b5 axb5 e6 Ra5 exf5 Ra1 f4 Kf2 f5 Kf3 Kf7 e4 Kg7 g4 a5 d4 c5 d5 h5 b6 h3 b7 h4 d6 c3 g5 a4 e5 h2 g6 c2 d7 h3 e6 c4 e7 a3 e8Q c3 Bc4 a2 Be2 Nh6 Qd3 Nf7 Nd2 Rh5 Qb5 Nd6 Qb6 Na6 b8Q Nb5 Bf1 Kh8 Qee5+ Bg7 Qf2 Na3 Qd5 Qh4 Qdc5 Bf6 Bb5 Nb4 Qfe3 Ra5 Rb1 a1B Qd5 Na2 Ke2 f3+ Kd3 f2 Bc4 f1B+ Ne2 f4 Ke4 f3+ Nf4 f2 Nb3 Be2 Qbb6 f1R Nc5 Re1 Nd3 Bd1 Qde6 Rhc5 d8Q+ Kg7 Qdd6 Kh8 Qdb8 Re2 Bd2 c1B Be1 Ba4 Bf2 c2 Rd1 h1R Qg4 h2 Nd5 Bd8 Ke5 Bf5 Kd6 Bd2 Rbc1 Bc3 Qee4 Bf6 Qg5 Re3 Bb3 Rhe1 Qg1 h1B g7+ Kh7 Bc4 Bf3 Qh1 Bg6 Ke6 Bf5+ Kf7 Rg1 Kf8 Rg3 Rb1 c1R Qe1 Rc2 Rbc1 Rc6 Bb3 R2c5 Rc3 Bg6 Qd2 Rg5 Qc1 Re5 Bc4 Re7 Rc2 Rb7 g8Q+ Kh6 Qge6 Kh7 Q6g4 Kh8 Qgf4 Bh7 Bb3 Rcb5 Rc3 Rd6 Rc7 Rc5 Qec4 Rde6 Qfe4 Rec6 Q4c2 Qf4 Ne7 Bg8 Bf7 Bh7 Nd5 Qh4 Qcc4 Bde7+
4R1bK/2nRr3/r1q3N1/N1P1Brn1/q4bB1/3BBQQ1/nnbB3q/k6b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 a2 c5 h2 Bd2 Kb2 Nh3 f2 Qe2 f3 Ba5+ d2 Qe1 d1N Rg1 h1Q Bg2 f1B Qe3 f2 Bd2 d3 Na3 Nf6 g8B Nc3 Bh7 Qh2+ Qg3 Qd7 Bf3 Ra6 Rd1 a1Q Bg4 Qc6 Nf4 h3 Ng6 Be6 Nc4+ Ka2 Na5 Bg8 Kf5 Bd6 e5 Nfe4 e6 Bf4 e7 Ng5 e8Q Be2 Rh1 f1R Qf8 Re1 Be3 d2 Rg1 Rf1 Rh1 Rf2 Rhe1 Kb2 Qf7 Qaa4 Qd5 Bb5 Qdf3 Na2 Re2 Bbc4 Ree1 Bce6+ Kf6 Bf5+ Kg7 Bc2 Re2 Bf7 Ree1 Re8 Re2 Bg8 Kh8 Re7 Ree1 Nd7 b8B Nf6 b7 Nd5 Bd6 Nc7 b8B Qg1 Re2 h2 Ree1 h1B Be5+ Ka3 Bc3 Qh2 Re2 Ne8 Bbe5 Nc7 Rc1 d1N Bcd2 Nb2 Rd1 Qd4 Be1 Qda4 Rd7 Nc1 B1d2 Ka2 Nh4 Ka1 Bd3 Nh3 Ng6 Na2 B3d4 Bh6 Re4 Ng5 B4e3 Rf1 Rf4 Rf2 Rf8 Rf1 Re8 Rf2 Qfg2 Rf5 Q2f3 Ne4 Qh4 Bf4 Qhh3 Ng5 Qh4 Qg1 Qhg3 Qh2+
rqb2R2/2Bn1B2/qr1N1k2/P1r1q2B/n2Q2rR/K1Qn4/1bNB1n2/1b2B3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Ke7 g4 c5 e4 b5 d4 f5 Kd2 h5 Kc2 b3+ Kb2 c4 a5 c3+ Ka3 c2 g5 h3 g6 b4+ Kb2 h4 g7 f3 e5 h2 e6 h3 d6+ Kf6 e7 f2 e8Q f4 d7 f3 d5 Rh5 d6 Ne7 g8B Rc5 Ra4 Bg7 Be2 f1R Bb5 f2 Bh7 Nd5 Na3 Nb6 Ne2 Rg1 Bc4 f1Q Nd4 Rg4 Bf7 Qa6 Bd2 c1N Qh8 Qe8 Nac2 Qe5 Re1 h1R Bhg6 h2 Bh5 Rf1 Re2 h1N Be1 Nf2 d8B+ Qe7 Bd2 N8d7 Bc7 Qe5 Re1 Rfg1 Rf1 Rg6 Qe1 R1g4 Qe3 Rh6 Qc3 Rhg6 Nf5 Ncd3+ Ka1 b2+ Ka2 b3+ Ka3 b1B Rb4 Nf8 d7 b2 Nd6 Na4 Rc4 Ba2 Rd4 b1Q Be1 Qb8 d8B+ Qe7 Bd2 Nd7 Be1 Bb1 Bd2 Ke5 Be1 Qe8 Bg5 Qe7 Bgd2 Kf6 Qh6 Qe5 Qe3 Ke7 Rb4 Re6 Re4 Kf6 Qed4 Bh8 Nb5 Rb6 Nd6 Rg3 Rh4 Rg4 Rhh1 Bg7 Rh4 Ke7 Qe3 Nh1 Bd5 Qe6 Qb3 Ba1 Qd4 Qe5 Rf8 Nhf2 Bdf7 Kf6 Qbc3 Bb2+
Nr1bB1kb/1b6/Q1qr3K/R1B1R2P/1q2q2B/2q3BQ/1Bq3Nq/b5nn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 e5 c4 g5 b4 d5 h4 a5 h5 e3 b6 e4 b5 a4 b7 g3 b6 a3 f5 a2 f6 d3+ Ke1 g2 c5 d4 c6 d2+ Ke2 g4 c7 g3 Ba3 Nd7 b8B Ne7 b7 Qe8 Ba7 Rh6 b8B Bg7 Bb4 Bh8 Bac5 Nf5 Qe1 Kg8 Nc3 Ne5 Rh3 Nf3 Bd6 Bb7 c8Q Rg6 Ba7 Rb8 Ba3 Rh6 Qc6 Qf8 Bf4 Qb4 Na4 Rg6 Bb2 Rh6 Rc1 a1B Qa6 Rg6 Nb6 Rh6 Kd1 e2+ Kc2 e3 Kd3 Rg6 Rc5 d1Q+ Qd2 e1B Ne2 g1Q Re5 Qdb3+ Qc3 g2 Bh2 Bg3 Nf4 e2 Ra5 e1Q Na8 Qd5 Bc5 Qh1 Qa3 g1Q f7+ Kh7 f8B Kg8 Bfe7 Rd6 Qb3 Bh4 Qc3 Qg7 Ng2 Ng1 Re3 Ng3 Re4 Qg4 Re5 Qee4+ Kd2 Qh3 Bb5 d3 Be8 Qc6 Bg5 Qg6 Ke3 d2 Qa3 d1Q Bd8 Qdc2 Qc3 Ne4+ Kf4 Qhd3 Bf6 Qdd4 Qg3 Qdc3 Qh3 Qh7 Bg3 Qh2 Bg7 Be7 Bf6 Nf2+ Kg5 Qhe4 Kh6 Nh1 Re6 Bd8 Bfh4 Bdf6 Re5 Bd8+
bQ5K/N1B1nrr1/2Rrrq2/4Bq2/B4bNr/pQ1B2n1/Bq1RP1b1/6k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 g4 h5 c4 d5 b6 a5 b7 h3 b3 h4 g5 d3 g6 f3 g7 a4 Qe1 f4 Qf2+ d4 Qg3 f2 Qe3 a3 Bg2 f1Q Bd5 d2 Nf3 d1R Qd3 h2 Bb2 h3 Ng5 f3 Be4 f2 Bf5 Ra7 Nf3 Nf6 g8B Rh6 Nc3 Nh5 Ra2 Ng3 Nb5 Qh4 Rg1 h1B Nh2 Bg2 Ng4 h2 Bd5 h1R b4+ Kb6 Qc3 d3 Bd7 d2 c5+ Ka6 c6 Kb6 c7 Re6+ Kf4 Qh7 Kg5 Nc6 b8B Bd6 Qd3 Rb7 Na7 Rh4 b5 Kc5 b6 Qh8 Bg7 Rb1 Bf6 d1R Kg6 Rb3 Qb1 Rf3 Rb2 Be5 Ba2 Rdd6 Rd2 Qc1 Qb3 f1Q Be8 Qb2 Kf7 Qh6 Kg8 Qfb1 Re1 Rf5 Bg7 Bf4 Be5 Rff6 Rf1 Qf5 Rh1 Bd7 c8B Rc7 Ba6 Bc8 Nb5 Bb7 Na7 Ba8 b7 Rh7 Rb1 Rff7 Bc7 Qhf6 b8Q Bf1 Bd3 Bg2 Nh6 Rhg7+ Kh8 Ne7 Ba4 Ra6 Bed6+ Kd4 Be5+ Ke3 Rc1 Kf2 Rcc2 Rad6 Rc6 Nh5 Ng4+ Kf1 Bc2 Kg1 Bd3 Ng3+
n1Q2r2/1N1b1Q2/1R1NbB2/n6q/nr2B1P1/2B3bp/2qn1R2/BBK1nqk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 c5 a5 b6 f5 b5 f3 c6 Kf4 e5 Kg3 b7 Kf2 c7 f4 e6 h3 b6 h2 e7 h4 e8Q h3 Kc2 a4 Nc3 d3+ Kd2 a3 Na4 a2 Qh5 d4 Nc3 Nc6 b8B Na5 b7 Bd6 Nb1 Be6 c8B Ne7 Ba3 Qe8 Ba7 Nd5 b8B Rf8 Bb7 Nc7 Qc5 Qh5 Bb4 Be5 Kc1 d2+ Kb2 Bd6 Qb3 d1N+ Kc1 Nc3 Nd2 Na4 Rb1 a1N Bc3 Nc2 Be4 Ne1 Ne2 Bd7 Rg1 h1B Ng3 Be6 Bb6 Bg2 B8a7 Rab8 Nf5 Na8 Bd8 Rb4 Qc8 Bh1 Bb8 d3 Nc4 Bc7 Bdf6 d2+ Kd1 Bd7 Ncd6 Bg2 Ba6 Bf1 Nb7 Bc4 Bb5 Bce6 Rf1+ Kg2 Rf2+ Kg1 Bbd3 Be5 Rh2 f2 Nfd6 f1N Rf2 f3 Rb2 Bg3 Bb1 Bf5 Qf7 Bfe6 Re2 f2 Rb3 Rd4 Rb6 Rb4 Ba1 Nh2 Bc7 f1Q Rf2 Nhf3 Bfc3 Qd3 Bd8 Qc2+ Ke2 d1Q+ Ke3 Qdd5 Bdf6 Nd2 Ke2 Qdf5 Ke3 Qc1 Ke2 Qb2 Kd1 Qb3+ Kc1 Qc4 Bc6 Qf1 Bh1 Q5d3 Be4 Qc2+
1nK4r/3n1rk1/2nq2Bb/3BR1q1/1p2QB2/r1rQN1PB/q1Brb3/R4N2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 f5 Kd3 Kf7 Kc4 b5+ Kd5 h5 c4 d3 e4 f3 a4 b3 c5 f4 g6+ Kg7 c6 b2 a5 f2 a6 f3 e5 h4 e6 h3 a7 d2 g3 h2 e7 b4 Kd6 Ba6 c7 Be2 c8B Nf6 Qc2 d1Q+ Nd2 b1Q Ra6 Qa2 Bh3 f1R Qd3 f2 Nc4 Re1 Bf4 f1R Ra3 Qdd2 Ra4 Rc1 Ne3 Rc3 Nf3 Qc1 Rg1 h1N Ra5 Nf2 Nd2 N2g4 Re5 Rf2 Ndf1 Qd1 Rf5 Ne5 Bb7 Qdd2 Be4 Nec6 Re5 Qda5 Bef5 Qb5 Kc7 d5 e8Q d4 Kc8 Nfd7 Qe6 Qb6 Qd5 Qc5 Q5e4 Qd6 Rh1 Kg8 Rg1 Bh6 g7 Kf7+ g8B+ Kg7 Bg6 Rf3 Qb5 d3 Qbd5 Qc1 Qdc4 d2 Qcd3 d1R Rh1 Rh7 Bb3 Rd2 Bc2 Rh8+ Kb7 Na6 Rg1 Raf8 a8B Nab8 Rh1 Rf7 Rg1 Ra3 Rh1 Nd8+ Kc8 Rc3+ Bc6 Ra3 Bd5 Ndc6+ Re8 Qca1 Rg1 Qae5 Rh1 Qg5 Rg1 Nf8 Re5 Nfd7+ Kb7 Qh4 Nd1 Rg8 Qdc4 Re8 Nh2 Re6 Kc8 Rfb3 Ne3 Qg5 Ra1 Rc3 Nhf1 Re8+ Kb7 Qc5 Qcd3 Rh8 Kc7 Qd6+ Kb7 Nf8+ Kc8 Nfd7+
Q5Q1/1Rqn2Q1/1b3pn1/n1BNR3/b1NQB1nb/rnK3rq/3P2Q1/1r1k4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 b6 Kd4 e5 h5 b5 a5 e6 c5 b7 a4 e7 c3 e8Q h3 b6 h2 g5 c2 g6 a3 g7 a2 Qee2 h4 Qe6 f3 Bd3 h3 Qb3 c4 Ba3 c1N Qb2+ c3 Qbc2 f2+ Kf1 Bd7 Bb4 Be7 Qh5 Bh4 Bc4 f6 Qa4 c2 Qc6 Qc7 Qh7 Ne7 g8Q Nb3 Ke2 f1N Qhg7 Ne3 Nc3 Ra3 Bd3 Na5 Be4 Ng6 Rb1 a1B Nd5 Bb2 Qd6 Ba4 Nf3+ Kc4 Rhc1 Kb3 Kd3 h1Q Bc5 h2 Ne5 Nd7 b8Q Rh5 b7 Rg5 Qbe8 Rg3 Nc4 Qf3 Qee5 h1R Qg5 Qf5 Rf1 Qh3 Rf5 Rf1 Re5 Rc1 Ra1 Rb1 Qa8 Bd4 b8Q+ Nb7 Qbg8 Na5 Bb4 Bb6 Bc5 c1N+ Kd4 Rf3 Qg2 Rg3 Ra2 Nd3 Ra1 Kc2 Ra2+ Kd1 Rb2 Nc1 Rb3 Ba7 Rb7 Ncb3+ Kc3 Bb6 Ne7 Rba1 Qd4 Rb1 Nd5 Ng4+
n6r/1R5K/2nPB1R1/1bbQ4/qBb1r1Q1/1rbQ2Qb/kn2p3/NNq2Q2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 g4 h5 Kg6 a5 d4 c5 f4 e5 b6 a4 b7 a3 f5 a2 f6 c3 f7 c2 d5 Kb3 g5 h3 Nf3 h4 Qe1 h2 Be2 e3 Bd2 c1N Na3 h3 Bf1 c4 Nc2 c3 Bg2 e4 Rg1 h1B Qd1 h2 Rb1 a1B Bf1 e2 Bh3 e1R Be6 Nc6 b8Q+ Ka2 b4 e3 b5 Qd7 b6 Nd3 b7 Nb2 Qd6 Nf6 b8Q Ra3 Qdb4 Bc5 f8Q Re2 Qg4 Rb3 Qbg3 Ne8 d6 Nc7 Qff5 Ba6 Qf1 Na8 Qd3 Bb5 Be1 Bg2 Nd2 Qe8+ Kg7 h1B g6 Bh3 Rg2 Rf8 Kh7 Qd7+ g7 Rh8+ Kg6 Qa7 g8Q Qa4 Rg1 Bd5 Qgf7 Re8 Kh7 Bdc4 Q7f3 Rh2 Qfd5 e2 Rg2 Rf8 Rg1 Rf4 Rg2 Re4 Rg1 Nd1 Rg2 Bb2 Na1 c2 Rg1 Bc3 Rg2 Ra3 Rb4 c1Q Nb1 Nb2 Rg1 Ba6 Rb7 Rb3 Rg2 Bab5 Bd2 Bg7 Bb4 Rh1 Rf2 Bc3 Rf6 Rh2 Rh6 Rf2 Rg6 Rf8 Rb8 Rd8 Rb7 Rh8#
3q4/BN3q1n/3PRq1p/K1r4b/2qBq3/B3B1bQ/R1QN1b1n/1rn1k2B w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Ke6 b4 Kd5 d4 c5 Kd2 a5 Kc3 e5 g5 h6 g6 h3 g7 h2 b6 a4 b7 e3 f5 Ke4 d5 e2 f6 e1Q+ Qd2 a3 b5 a2 f7 Nd7 b8B Ra7 b6 Rc7 b7 Ngf6 g8Q Ng4 Qg5 Ndf6 Ba3 Bd6 f8B Qf2 Bh3 Nh7 Qb2 Qf7 Qf5+ Ke3 Qbc2 e4 Qd7 Bg3 Ne2 Kf2 d6 e3 Rc1 h1Q Bb2 Nh2 Re1 Qe4 Nf4+ e2 Bg2 Rg8 Qh3 Bg4 Bc1 Bh5 Ba7 Rg5 b8B Rd5 Bf3 Rd1 Bb2 Rc1 Nd2 Rb1 Rc1 e1B Ne6 Rd7 Bh1 Rc7 Ba3 Ke2 Qb2 Bef2 Rc2 Kd1 Bg7 Ke1 Qb3 Rc1 Rb1 a1Q+ Rb2 Rb1 Bd4 Qg5 Nd8 Qgf6 Bb4 Qa5 Bb6 Qaa8 B8a7 Qc8 Nb7 Qcd8 Ra2 Rd1 Kb2 c3+ Ka3 c4 Ka4 Rb1 Rcb2 c2 Ka5 c1N Ba3 c3 Be3 c2 Bbd4 Nd3 Qa4 c1Q Rb4 Qcc4 Qc2 Nc1 Rb5 Q7e6 Re5 Qef7 Re6 Rc5#
1nRQb1bR/r4q2/1R1pQ3/br5R/1qbP2r1/2R1Bn2/4N1K1/1Nqk1Bb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 Ke7 c4 Kf6 e4 Ke5 g4 Kd4 b6 h5 g5 a5 g6 f5 e5 h3 b7 f3 e6 h2 e7 b3 e8R h4 d3 h3 g7 a4 c5 a3 c6 a2 c7 b2 Re7 f4 Rf7 Nf6 g8Q Bb4 Be2 d6 Rg7 Ba5 Rf7 Nfd7 Bf1 Qh4+ Qg3 Rg8 Na3 Kc3 Rf8 b1R Nc4 Ne5 Ne3 Bd7 Qa4 Ra7 Rf7 Be8 Re7 Rb5 Rh7 Rg4 Rb1 a1B Nc2 Bb2 Ke1 f2+ Ke2 Ba1 Rh8 Nf3 Qe4 Bb2 c8R+ Kb3 Ra1 Bd4 Be3 Kb2 Bg2 f1B+ Kf2 Bc5 Na3 Be2 Nc4+ Kc2 Ra3 Kd1 Qe6 Bf1 Ne2 Bd4 Rg1 h1B Rc3 h2 Bh3 Bg2 Nd2 h1Q Rh5 Ng5 Rh8 Bd5 Nb1 f3 Rg2 Bdb6 Rh2 Bd4 Qd7 Bg8 Qd8 Qh7 Qf4 Qf7 Qe4 Qc4 Bg2 Qb4 Qe6 Bdb6 R2h7 Qh5 Bh3 Qf7 Rh5 Bc5 Bg2 Bd4 Kg1 f2+ Kh1 Nf3 Bh3 Na6 b8R Bc5 Rb6 Nb8 Ng1 Be2 Bg2 f1Q Bh3 Qe1 Bf1 Rf4 Kg2 Qd2 Bd4 Qc1 Bf2 Be3 d4 Bc4 Ne2 Rg4+ Bg3 Re4 Bf4 Bg1 Be3 Rg4+
k1b1R1Br/b2PQ1Bn/2n4q/b1QB4/1r6/nBnnK3/1p1BR2q/rN1N4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 c5 g4 Kc7 e4 b5 a4 Kb7 g5 h5 a5 f5 d6 b3 d5 h3 e5 b4 d7 f3 g6 h4 e6 h2 d6 c4 g7 h3 e7 b2 e8Q f4 Qf7 c3 Nd2 b1N Bg2 c2 Ra2 b3 Ne2 b2 Qd5+ Nc6 Qg5 Na3 Rf1 h1N+ Ke1 h2 Bh3 Qf6 d8B Qh6 d7 Nf2 Qe7 h1Q Be6 Q1h2 Nb1 Nf6 Kd2 Rb8 g8B Ka8 a6 Nd3 a7 f2 Nec3 Rb4 Bb3 Nh7 Re1 f1R+ Re2 Bg7 Bc7 Bd4 Be5 Bc5 Qe1 f3+ Qg5 f2 Nd1 Bb6 Bg7 Ba5 Ke3 Rh1 Bd2 f1N+ Kf3 c1B Qc5 Ng3 Ra1 Rf4+ Ke3 Ne4 Qh4 Nc3 Qhe7 Nab5 Ra4 Na3 Re4 Rg1 Qd8 Re1 Re8 Rb4+ Qdg5 Kb7 a8B+ Kb8 Bb7 Rf1 Ba6 Ka8 Bac4 Re1 Bcd5 Rg1 Kf3 Rh1 Qge7 Rg1 Be1 Be3 Bd2 Re1 Qc4 Beb6 Qcc5 Ba7 Ne3 Rc1 Nd1 Nc2 Na3 Ra1 Nb1 Q2d6 Re1 Na3 Re2 Qhh2 Ke3 Qdh6+
1n3bNB/b2pnqQ1/1QnQ1nP1/2q1n1k1/2R2r1N/4RQ2/3r2bq/3KQB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 Na6 e4 Ke7 g4 Kf6 b4 h5 b6 d3 b7 h3 b8Q h2 c5 d2+ Ke2 f3+ Ke3 h4 c6 h3 b5 f2 Ke2 Bb7 c7 Qc8 b6 Rh4 Qe1 d1N Qb4 Nb2 Qe1 Nd3 Bd2 Ndb4 Bg2 f1N Bf3 Ne3 Ra4 Ned5 g5+ Kg6 e5 f5 e6 f4 Bg4 f3+ Kd1 f2 e7 f1Q e8Q+ Qf7 Be6 Rf4 Nf3 Bc6 Rf1 h1N b7 h2 Bh3 Kh5 Q8e6 Nde7 g6 Bd5 Nh4 Kg5 Q6e4 Nf2+ Kc1 h1Q Nc3 Ng4 Kd1 Qg2 Rf3 Qh2 Bf1 Bc6 Rd3 Bd5 Q4e3 Bg2 Nd5 Nc5 Rd4 a5 Qf3 Nca6 Ra3 a4 Re3 a3 Nf6 a2 Bc3 a1B Qa7 Bb2 b8Q Ba1 Rde4 Bb2 Be5 Bd4 Qc5 Ra7 Qd6 Bb6 Qb7 Nb8 Ba1 Ra5 Bd4 Ba7 Qbb6 Ra2 Bb2 Qa6 c8Q Qa5 Qcc3 Qc5 Rc4 N4c6 Qcd4 Nd5 Bc3 Nge7 Ng8 Rb2 Qh8 Rc2 Bg7 Ndf6 Qh7 Rf2 Bh8 Nge5 Qg7 Rd2+
B4B1N/b7/Q1K1B2b/BQNr1b1P/R3r2k/1bnb1q2/bpB4n/1r2R1b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 a4 Kf6 h4 g5 e4 c5 d4 b5 d6 c4 a5 f3 Ke3 g3 d7 g4 a6 g2 a7 f2 d5 g3 Kd4 c3 h5 b3 d6 b2 Kd5 c2 Bf4 c1R Ra2 b4 Nc3 b1B Qc2 b3 Qd3 b2 Be5+ Kg5 Ra1 f5 Na4 f4 Qd2 Bh6 Bc3 Ba2+ Bc4 f1B e5 Na6 e6 Nf6+ Kc6 Nc5 e7 Rb1 e8B Bd3 Be6 Nce4 Ne2 g1B Bb4 g2 Nc5 Nc3 Bg6 Qf8 d8Q Rb8 a8B Rb5 Qa5 Ng4 d7 Nh2 Qa3 Kh4 Qa6 f3 Nf4 f2 Qe2 f1B d8B+ Qf6 Bf5 Re8 Bda5 Bf2 Bh7 g1B Ba3 Bdc4 Bc2 Bcb3 Qc4 Bd3 Ng6+ Kg3 Qd5 Qf3 Nh8 Kh4 B3b4 Rf8 Ba3 Rf4 B3b4 Re4 Qc4 Rb7 Qcb5 Rd7 Ba3 Rd5 B3b4 Bg3 Ba3 Bb8 B3b4 Bf2 Re1 Ba7 Ba3 Bbc4 B3b4 Bab3 Ra4 Bg1 Nb7 Ba2 Bf8 Bcb3 Nc5 Rg4 Bg8 Bcf5 Be6 Re4
1N3bQ1/1R4n1/1Rb2k1r/bP6/N1Kq1r1b/1QR1bR1p/B4n1R/1b1n2Bb w - - 0 1 illegal: No possible last move, all moves rejected
Q1Nn1K2/1b4Rq/1b1Bb3/N2k1q1P/N3r1p1/N2nrB2/R3b1n1/Q2N1q1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 h4 g5 e4 f5 c4 d5 c5 a5 h5 a4 e5 d3 c6 d4 c7 g3+ Kf3 g2 b6 d2 b7 g4+ Ke2 f3+ Kd3 f4 Ke4 f2 b5 f3 b6 d3 Ba3 Ne7 Qe2 d1B Ra2 d2 Bb2 a3 Qe1 Nd5 Be2 f1B Nh3 g1R Nf2 Nc6 b8N Ndb4 b7 Bb3 Na6 d1N b8N Bb7 c8N Ne3 Nd1 f2 Bf3 Bc5 Bc3 Nd3 Bb4 Ba7 Bd6 Qf6 Qc3 Qh6 Qa1 Nd8+ Nc6 Ng2 Rh2 Be2 Nc5+ Kf7 Kf5 f1Q Rb2 a2 Na4 Re8 Na5 Bb6 Na3 Rh1 Rc2 Re7 Rc7 Qh7+ Kg5 Qf5+ Kh6 Ke6 Rd7 Re8 Kg7 Rb8 Rf7 Re7 Kf8 Ra8 Qb2 a1Q Qb1 Qc3 Qa1 Qh7 Rg7 Qc5 Rg8 Qd5 Rg5 Qde4 Rg7 Kd5 e6 Rc7 e7 Rc3 Na7 Rac8 e8Q R8c4 Nc8 Ne5 Qb5+ Bc5 Rf7 Ne1 Qa6 Ke6 Rg7 Qef5+ Rf7 Bb6 Ne7 Re3 Qc1 Rce4 Qc3 Bb5 Ra2 Be2 Nc8 Ng2 Qa8 Nd3 Qb2 Kd5 Qb1 Kd4 Qc1 Be6 Qb2+ Kd5 Qa1 Qg5 Rg7 Qgf5+
1N1Q3N/8/qn2b2n/p3Nn1K/2Q1bBr1/1BRq3b/PRnN3r/2rqk2N w - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 Bh6 g6 Bg5 hxg5 bxc4 Kf2 Kd7 b4 Ke6 d4 Kd5 g7 a5 g6 e5 b5 c5 b6 f5 b7 h5 Qb3 e3+ Kf3 e2 Qa4 e1Q Bd2 e4+ Kg2 h4 Kh3 e3 Qb5 Ke4 d5 e2 d6 Kd3 d7 f3 Bh6 f4 Kg4 f2 Na3 Kd2 Nh3 c3 Qb2+ c2 Kh5 c4 Bg2 f1Q Kg4 c3 Rh2 Qd1 Bd5 Ke1 Nf2 c1N Bf7 c2 Nc4 h3 Qb5 f3 Qc6 Nb3 Rc1 Nd4 Nd2 Nf5 Bf4 Ngh6+ Kh5 Qb6 d8Q Qa6 g8N Be6 g7 Nd7 b8N Nb6 Nh1 f2 Rg2 h2 Nf6 Ra7 g8N Rb7 Ra1 c1R Ne7 Rc7 Qb5 R7c4 Ng4 Rd4 Qc4 Re4 Ng3 h1B Ne5 Rd4 Rh2 Be4 N7g6 Rh7 Nh8 Qh3+ Qh4 f1B Nh1+ Qg3 Qe7 Bh3 Qd8 Qd3 Rf2 Rg7 Rb1 Rg2 Rb3 Rh2 Rf3 Rd7 Bg8 Rg7 Rb2 Rg4 Rg3 Qd5 Rc3 Qd3 Ng3 Kf2 Bf7 e1N Nh1+ Ke2 Be8 Nc2 Ba4 Ke1 Bb3 B4d5 Nb1 Bb7 Nd2 Be4
2r2B1B/1p1qq3/Nn5q/kbrn4/3B4/3bnRRB/K1BNQb1P/2br3Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 a4 g5 d4 f5 Kd2 c5 Kc2 Kc7 Kb2 Kb6 e5 g3 d6 c4 d7 g2 d5 c3+ Kb3 f3 d6 f4 e6 c2 e7 f2 e8B g4 Be2 f1R Nf3 g1B Nbd2 g3 Ra3 g2 Ne1 f3 Nd3 f2 Ka2 Nf6 Nc5 Ka5 Bb2 c1Q Rg3 Bh6 Bd4 Qe7 Bg4 Nd5 Qe2 Rd1 Bh3 f1N Bg6 Nfe3 Na6 Bf2 Rf1 g1Q d8B+ Qcc7 Bd3 Nd7 Bc2 N7b6 d7 Rf8 Bh8 Rf5 Bd4 Qf4 Bc7 Qh1 d8B Bd7 Bce5 Rc8 Bh8 Bb5 Bc7 Qhe4 Bd6 Qd7 Bf8 b3+ Ka3 b2 Ka2 Bg1 Rff3 Qee7 Nc7 Kb4 a5 Bf2 a6 Ka5 a7 Qfd6 Na6 b1B+ Kb3 Bg5 a8Q Qh6 Qa7 Ba2+ Kb2 Bac4 Qa8 Bd3 Ka2 Rc5 Qc8 Rf6 Qc7 Rfc6 Qe5 Rc8 Qf1 Nf5 Qee2 Nfe3 Qh1 Nf5 Nf1 Bc1 Nd2 Nfe3
6bN/P1pq1r1N/3B1n1B/bkB2nn1/1q4R1/3KqR1Q/1BB2rqQ/2b3r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 b5 h4 f5 a4 g5 e4 g3 e5 g4 a5 f3 h5 f4 d6 Kc6 e6 g2 d7 g3 a6 b3 h6 f2 e7 b2 e8Q b4 h7 f3 a7 b3 Bc4 f1N+ Kd3 f2 Nc3 b1R Ra3 b2 Qd2 Bb4 Nb5 Nh2 Nf3 g1Q Nd6 g2 Ng5 Nf3 Qee3 Nh6 Bb3 Ba5 Rh4 Nf5 Ndf7 Kb5 d5 Rf8 Nh8 Rf7 d6 f1Q+ Qde2 Qe8 d8B Be6 Be7 Nd7 Bc2 Nf6 Rg4 Qd7 Rc3 Raf8 Ra3 Nd2 Qh3 Nf3 Be3 Ra1 Bc5 b1Q Rc3 Qb4 Rb3 Qc6 d7 Qgf2 d8B g1B Ra3 Q1g2 Bed6 Qd7 Qe5 Qfe1 Qeh2 Be3 Be7 Bc1 Rb3 Rg8 Bf8 Ra2 Bh6 Rgg7 Ng6 Rb2 h8B Qeg1 Nh7 Ng5 Bd1 Rf2 Bc2 Re7 Rc3 Bg8 Rb3 Rgf7 B8g7 Re1 Nh8 Q1h1 Rc3 Rg1 Ra3 Ne8 Bb2 Nf6 Rf4 Qg3+ Rf3 Qhg2 Ra4 Qe1 Rg4 Qb4 Bg7 Qgf4 Bh6 Qe3+
1b2kb1R/4n3/1b1QR2n/bpQ1N3/4q2B/P1nKn2b/1RnRB1r1/R3Nr2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 g5 Ke2 b5 d4 c5 h4 f5 a3 g3 d6 b3 d5 g2 e5 b2 e6 f3+ Ke3 g4 h5 f2 h6 f4+ Kd3 f3 e7 c4+ Kc3 g3 h7 Nc6 Rh5 Nh6 Be3 Bh3 Bc1 Rg8 Kc2 c3 Be2 f1N h8Q f2 Kd3 c2 Qc3 Ne3 Nd2 b1N Ngf3 g1B Nc4 f1N Ne1 g2 Ne5 Bh2 Qc5 g1B Rf5 Rg2 Rf2 Nc3 Bd2 Nc4 Bg5 c1B Bh4 Nfe3 Rf6 Ng8 Rf1 Ng4 Qb6 Bge3 N5f3 Bg7 d7+ Kf7 Kc2 Qe8 d8R Bcd2 d6 Nd5 d7 N4h6 Rf2 Ba5 Bf1 Nc3 Rb8 Bc5 d8R Ne3+ Kd2 Bc7 Qa7 B5d6 Qc5 Nd4 Rb6 Qc6 e8R Ne7 Rh8 Qe4 Rc6 Bg3 Re6 Bcb6 Bd3 Bgc7 Rdd6 Rf8 Ne5+ Ke8 Re2 Nc6 Rd4 Bb8 Rb4 B8a7 Rb2 Nb4 Rf2 Nbc2 Bc4 Na2+ Ke2 Bb8 Qdd6 Nc3+ Kd2 Qf4 Bf1 Qf3 Kd3 Qb7 Rd2 Qa8 Be2 Qc6 Rh7 Rf1 Rh8+ Bf8 Rba2 Qa8 Rb2 Qe4#
5K1k/R2RPnr1/B1nQ1B2/R5p1/q2QR3/2bb2Nn/Nn1b1b2/1R1n1b1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 a5 Ke4 f5+ Ke5 Kf7 b4 Kg7 h4 d5 e4 f3 c4 d3 b6 f2 b5 d4 h5 a4 c5 f4 b7 d2 c6 a3 b6 g3 c7 d3 Be2 f1N Bb2 g2 Nc3 a2 Rh4 Bf5 c8R f3 Rc7+ Qd7 h6+ Kh7 Rb1 a1B Na2 f2 Rc5 Qa4 Ra5 Bg7+ Kd6 Ra7 e5 Ne3 e6 f1B Bf6 Bc3 Re4 Nc6 b8Q Nd5 b7 Nf4 Qf8 Nh3 b8R Re7 Rba8 Rf7 Qe7 Bf8 R8a6 Rg7 Ra7 Bg6 Kd7 Bf5 Ke8 Bg6+ Qf7 Bfb4 e7 Bf5 Kf8 Bg6 Qdb3 d1N Qb2 d2 Qd5 Bf5 Qa3 Nb2 Qd4 d1N Ba6 Bg6 Ne2 g1B Ng3 Bf2 Re3 Bgd3 Re4 Kg6 h7 Bd2 Ke8 Bbc3 Qad6 Nh6+ Kd7 Re8 h8R Nf7 Ke6 Rc8 Rd8 Kh7 Kd7 Rb8 Ke8 Kh8 Kf8 Rb5 Rdd7 Re5 Rf4 Re1 Rg4 Bg2 Rf4 Rh1 Re4 Bgf1
3r1RBQ/6b1/5Bq1/3QNqB1/6qq/knPqB1pn/Bq4R1/rbNb3K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 b4 a5 h4 g5 e4 f5 b6 a4 b5 Kc5 h5 Kb4 e5 d5 b7 a3 e6 g3 e7 f3+ Kh3 d3 e8B d2 h6 f4+ Bd7 d4 b6 a2 h7 g2 Kh2 f2 Be6 g4 Ba6 f1Q Qe2 d1B Qf3 d3 Bf5 d2 Bb2 Qfd3 Ne2 Nf6 Rg1 Bg7 Qd5 f3 Nc1 f2 Be6 f1Q Bg8 Bf5 Bc4 Na6 b8B Nc5 b7 Nfe4 Bf4 Nf2 b8B Nh3 Bg5 Nb3 Bbf4 Bg6 Be3 Qff5 Na3 Ka4 Rb1 a1Q Be5 Qb2 c3 Qe7 Bef6 Qee4 Bf7 Rhd8 h8Q Qe7 Bg8 Qb4 Nc2 Ra5 Nd4 Ka3 Rf1 Qe7 Rf2 Qee4 Nc6 Qed4 Kg3 g1Q+ Rg2 Q4e4 Ne5 Qe1+ Kh2 Qh4 Qd4 g3+ Kh1 Bh7 Bcf7 Qg6 Qd5 Qef5 Bef4 Bc2 Be3 d1Q+ Bg1 Qdg4 B1e3 Qa1 Rb2 Bd1 Rbf2 Qb2 Qb7 Nd4 Ba2 Nb3 Qd5 Qff4 Qe4 Q6h5 Be7+ Qd6 Qc2 Ka4 Qd2 Bb1 Rf3 Qa6 Qd5 Qd3 Rff2 Qfe4 Rf8 Qef5 Bef6 Qhg6 Qe6 Kb5 Qf7 Ra3 Qb7+ Ka4 Qd5 Bbc2 Bb1 Ra1 Ba2 Bb1 Qh5 Ka3 Qh7 Qd7 Qh8 Q7f5
2B3bq/n4bBk/1Q2nR2/K4qP1/4Q1qr/b1pB1B2/N1N1bBb1/1R1r2b1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 a4 h5 d4 f5 Kd2 Kf7 g4 Kg7 e4 c5 e5 b5 g6 h4 d5 c3+ Kc2 h3 Kb3 f3 e6 h2 d6 c4+ Ka2 c2 d7 c3 Kb3 f4 a5 f2 g5 f3 a6 Rh4 e7 Nf6 e8B Nd5 a7 Bc5 Bf4 c1B Nd2 Nc7 Qe1 Ne6 Bd3 f1B Nc4 f2 Ne2 Bg2 Nb2 f1B Nc4 Bg1 Rb1 Nc6 Bg3 Ba3 Nc1 Be2 Ne3 Rb8 a8Q Na7 Nc2 Qf6 d8B Qf5 Qf3 Qg4 Bd7 Rb7 Bc6 Rd7 Qff2 Bb7 Bf3 Bd5+ Bc4 Kg8 g7 Kh7 Qb6 Rd6 Bf2 Rd7 Bf6 Rd6 Ka2 b3+ Ka1 b4 Na2 Rd8 Ba6 Bdc4 Bc8 Rd1 g8B+ Kg6 Bf7+ Kh7 Bg7 Bd5 Rc1 b2+ Kb1 Bdc4 Be8 Bd5 Bb5 Bdc4 Ne3 Bd5 Kc2 Bdc4 Ra1 Bd5 Bc4 b1B+ Kb3 Bg6 Ka4 b3 Rb1 b2 Ka5 Bf7 Nc2 Bg8 Rc1 b1Q Bb5 Qb2 Bd3+ Qf5 Rb1 Qb4+ Ka6 Qg4 Ka5 Bef1 Qe4 Be2 Be3 Bf2 Rf1 Bg1 Bf2 h1Q Rb5 Rd2 Rfb1 Rd1 Rc5 Qh2 Rc6 Qe5 Bh6 Qh8 Bg7 Nf8 Rf6 Bdf7+ Qb5 Ne6 Qc5 Qg6 Qb6 Q6f5+
B1r1n2r/2rnbQ1n/4P2p/b6K/3rb3/bNr1q2R/1Q3NkN/R4NBN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 Ke5+ Kh5 Ke4 b4 f5 d4 c5 g4 a5 e3 c3 g5 c2 g6 f3 b6 a4 g7 a3 b5 h3 b7 f4 d5 a2 b6 c4 d6 f2 d7 f3 Ba3 c1R Qa4 h6 Bg2 f1R Ne2 h2 Qd1 c3 Bc5 Be7 Qb3 c2 Qf7 Qe8 d8N Nd7 b8Q Bb7 Ne6 Rfd1 N6f4 Rd4 Nh3 Bc6 b7 Ngf6+ Kg6 Nh7 g8N Ra3 Kh5 Rc3 Bb6 Re1 Bc5 c1B Ba7 Bca3 Ng3+ Kd3 e4 Ke3 e5 f2 Bf3 f1N Nf2 Rec1 Nf6 Be4 Nd2 Rc8 Bc5 Rc3 Bb6 Kf4 Bc5 Ne3 Ndf1 Nf5 N6g4 Qd8 Bg2 Qb6 e6+ Rc7 Qd8 Qb3 b8N Rc8 Na6 Rc7 Re1 a1B Qb8 B1b2 Qb5 Bc1 Ba7 Bd2 Nc5 Rcc8 Re3 Rc7 Rg1 h1R+ Ngh2 Be1 Qe2 Qb6 Qb2 Bd2 Qg8 Nd6 Nb3 Ne8 Qg6 Rc8 Rd3 R3c7 Qg7 Ba5 Qf7+ Bf5 Ba8 Qc5 Qa1 Qe5 Qb2 Qe3 Nfd2 Rc3 Ra1 Rhc1 Ndf1 R3c7 Ngh1 R1c3 Qg6 Be4 Qf7+ Bf6 Nhg4 Kf3 Ngh2+ Kg2 Bc5 Qd2 Rh3 Be7 Nfg4 Ra4 Bg1 Rd4 Ngf2 Qe3
2rb4/3r2KN/Q1Bp1q2/2br4/1rRq4/1RrQ1N1n/1rnP2Rn/3kB1RR w - - 0 1 illegal: No possible last move
1b6/n2b1BP1/2rqB1q1/2Qn1n1r/p3B2N/RKQBB3/2nRr1n1/1Nk1n3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 c4 Ke5 Kc2 Ke4 b4 f5 c5 a5 b5 h5 c6 d5 g6 h4 b6 f3 b7 a3 g5 f2 g7 d3+ Kc3 d4+ Kc4 h3 g6 d2 c7 Ke3 Ra2 h2 Qa4 f4 Nh3 d3 Qe8+ Ne7 g8B f3 g7 Rh5 Rb2 a2 Bg2 a1N Rc2 f1Q Ng5 f2 Ba3 d1R Qb5 d2 Qd5 Rc1 Bf7 d1N Qc6 Nf5 Nf3 Bd6 Nh4 Qg1 Nc3 f1N Ra2 Rc2 Bc5+ Kd2 e4 Kc1 e5 Re2 e6 Nc2 e7 Ra6 e8B Nf1e3+ Kb3 Qe7 Qf3 Nd5 Ra3 N1e3 Bb5 Nc6 b8Q Bd7 Nb1 Na7 Qf8 Rc6 Qg3 Qe6 Qe5 Qh6 Qc3 Bf4 Bd4 Be5 Qfc5 Qe6 Bf1 Qgg6 Rg1 h1N Bg2+ Nd1 Bf3 Nf2 Be4 Nd3 Rh1 Bd6 Bg1 N1e3 c8B Ng2 Bba6 Be8 Bb5 Qe5 Bce6 Bb8 Ba6 Bd7 Bc4 Nde1 Bcd3 Qd6 Bd4 Qf4 Rf1 Qd6 Rf2 Re3 Rd2 Re2 Be3 a4+
q3B1q1/1B1qb1PK/1N1Q4/2qpn3/b2BN2b/2Bk2r1/2qBR3/nQ2R1rq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 a5 c3 a4 g5 a3 e5 f3 e6 f2 e7 h3 e8Q h2 b6 a2 g6 h4 b5 h3 b7 Na6 b8B Nh6+ Ke4 f5+ Ke5 f4 g7 f3 b6 Nb4 b7 Be7 Bc7 Nf7+ Kf5 Ra3 Kg6 Nc2 Ne2 d2 b8B Kd3 c4 d5 c5 Qd7 Qe1 d1Q c6 Bh4 Rg1 h1Q Ba7 h2 Rg2 Qg1 Nbc3 h1Q Ne4 Rb3 Rb1 a1B Qf8 Baf6 Ba5 Na1 c7 Qc2 Bd4 Be7 Bcd2 Bb7 c8B Bc6 Rd1 Ba4 Bac3 Rh5 Qd8 Rg5+ Kh7 Ne5 Bb7 Rb1 Qb6 Rg3 Qd6 Rc1 Rh2 Rb1 Bh3 f1Q Be6 f2 Bf7 Qfg2 Be8 f1Q Rc1 Qf8 Qf1 Qff3 Re1 Qf7 Rc1 Kc4 Bg5 Kd3 Bb6 Qd1 Nd4+ Qge2 Nf5 Qd4 Ne3 Bb5 Nc4 Qa4 Qg1 Qec2 Bgd2 Qaa2 Re2 Qa8 Bc5 Bc6 Nb6 Ba4 Qf1 Qc4 B5d4 Qc5 Qd1 Qa2 Qb3 Qc2 Rf1 Rc1 Qb1 Qfe6 Rf4 Rcg1 Rf1 Qf7 Rfe1 Qg8+
kqBB1n1B/B1R1nBr1/2qn4/n4PN1/bp3b2/b1Q1R1N1/Q3K2r/b5b1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 a4 Kd7 d4 h5 f4 c5 g4 Kc7 a5 e5 a6 b5 f5 h3 a7 Kb7 g5 e3 d6 b3 g6 h4 d7 e4 g7 c4 d5 c3 d6 h2 Bc4 c2 Na3 h3 Rb1 e2 Bf7 b2 Be3 c1B Nc2 Ne7 Bd4 Bf4 Rc1 b1N g8B Nd2 Bh7 Nb3 Bg7 Na5 Kf2 e1B+ Ke2 e3 Na3 Bf2 Nf3 Bg1 Qc2 Rg8 Bc3 Rg7 Be5 Qb6 d8B Bd7 Qb2 Bc6 Nb1 Nd7 Qc3 Rb8 Bhg6 Ka8 Bb3 Rc8 Ba2 Qb8 Bb6 Re8 Ng5 Rd8 Kd3 e2 Bgf7 e1B Nd2 Bef2 Bf6 Bd4 Ke2 Bde5 Nde4 Bed4 Qc5 Ba1 Ng3 Rg8 Bfe6 Bge3 Beb3 Nd5 Rc3 Nc4 Rd3 Kb7 Bh8 Rg7 Re1 h1N Rc1 h2 Nf3 Bg1 Kf1 Nf2 Re3 h1Q Ng5 Ne4 Ke1 Be7 Qa3 Nf8 d7 Rc8 d8B Bb4+ Kd1 Ne7 Ba4 Rc7 Bc5 Ned6 a8Q+ Kc8 Qa5 Kb7 Ba7 Ka8 B2b3 Rb7 Qa2 Ba3 Qc7 Na5 Bf7 Qe4 Bab3 Rb6 Bbe6 Bd7 Qc5 Rc6 Qd4 b4 Qdb2 Be8 Bc8 Rc2 Qe5 Re2 Rc7 Rh2 Qc3 Ba4+ Ke1 Qc6 Kf1 Bf2 Ke2 Bg1+
Kq2QQbb/3R1BB1/n2B3B/3P1b1n/b1bp2n1/3nq1Rr/r2k2NN/7B w - - 0 1 illegal: No proof kernel
3qr2Q/1bB3Bn/2R1p2b/nqNK2N1/P2nQ3/RB5n/1r1r4/2B1rBkn w - - 0 1 illegal: No possible last move, all moves rejected
2rb4/1p1K4/Rr1QNPnq/4q2N/3B1qqR/Nrr5/1QB1b3/NN2k1qn w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Kc5 Kf4 d4+ e3 g4 h5 a4 e5+ d6 e4 d5 b3 g5 h3 g6 h2 a5 b2 f3 Kg3 g7 Kf2 a6 e2 f4 e1R a7 e3 f5 e2 f6 h4 Ra4 h3 Ra3 Nh6 g8Q Be7 Ra2 Nd7+ Kb5 c5 Qg4 c4 Nf3 c3 Nfd2 c2 Nb3 Nf8 d7 Nf5 d6 Ng3 Kc5 Ng6 Na1 Qg8 Ra6 Bd8 Qb4 Qg7 Bd2 c1Q+ Bc3 Qf4 Kd5 Rh5+ Ke6 Rb5 Be5 Rb8 a8N Rb6 Nc7 Ra8 Qd5 Rc1 Nb5 e1Q Bd3 Rc3 Bc2 Qg1 N5a3 Ke1 Bd4 Qgh6 Nd2 b1R Qdb5 Rbb3 Ndb1 Qhg5 Qd5 Rb2 Qa2 Rb3 Qb2 Qfg4+ Kf7 Q5f4 Ke8 Be7 d8N Qe5 Nc6 Bd8+ Ne7 Be6 d7 Bc4 Qc5 Be2 Qd6 Qef4 Nf5 Rac8 Ng7 Qe5+ Qe6 Qf1 Qe7 Qg1 Nh5 Qf1 Rg1 h1Q Qe6 Qhe4 Rh1 h2 Qe7 Qg1 Qe6 Be7+ d8N Qef3 Kd7 Qff4 Nf7 Bd8 Ng5 Qh4 Qc6 Qhg4+ Ne6 Qgf1 Rg1 h1Q Qd6 Qh6 Rg2 Qhg1 Rh2 Nh1 Rh4 Qff4
1R3n1b/2Q1r2k/1N6/b1q2bqn/r2Npq2/b1B2P1R/B1K1Q1nN/3n1NN1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Kg6 g4 a5 b4 d5 f3 h5 b6 e5 b7 h3 g5 h2 b5 a4 c5 h4 c6 e3+ Kc2 d3+ Kb2 d4 c7 h3 b6 d2 Qe1 d1N+ Kc2 e4 Bc4 e2 Ra2 d3+ Kd2 a3 Qf2 Ra4 Qe3 Kh7 Ra1 a2 Bb2 Ba3 Bc3 Bf5 c8N Nd7 b8Q Ngf6 b7 Nh5 Nb6 Re8 Qc7 Re7 b8N Nf8 Nc6 Qd6 Qf2 Qc5 Nd4 Ne3 Be6 Ng2 g6+ Kh8 g7+ Kh7 g8N e1B+ Kd1 d2 Kc2 d1N Nh6 Bd2 Ng4 Be1 Bc4 Bd2 Bb2 Bdb4 Nd2 Ba5 Rb1 a1B Bc3 B1b2 Nge2 Ba1 Nf1 B1b2 Rg1 h1Q Ba2 Qh2 Rh1 Qf4 Ng1 h2 Qe2 Ba1 Na8 Qh6 Rb8 Qg5 Nb6 Qf4 Nh3 B1b2 Rg1 h1Q Ngh2 Nh4 Rg3 Ng2 Ng1 Qg5 Ng4 Qh2 Rh3 Qhf4 Ngh2 Qb5 Bb4 Kh6 Ne6 Bh8 Bc3 Kh7 Nd4 Qc5
1K3nkr/Bn5R/N1BN2b1/Q5pr/1nRP3r/1rQ1b3/NNb1q1q1/1b2N3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 b4 c5 e4 f5 h4 Kf7 h5 a5 d3 c3 e5 a4 b6 f3 Ke3 f4+ Ke4 c4 b5 g3 b7 g2 b6 a3 h6 f2 h7 c2 Qe2 c3 Qf3 a2 Qh3 f3 Ne2 g1Q Nf4 Ra3 Be3 c1R Nd2 c2 Bg2 f1B Nc4 f2 Nb2 Nd7 Kd5 Ne7+ Kd6 Rb3 b8N Qe8 Kc7 Ng6 b7 Bc5 Bc6 Ngf8 Na6 Qg2 b8N Re1 Qh4 c1R Nb4 Rc4 Rc1 a1N Na2 Nc2 Na6 Nb4 e6+ Kg7 e7 Re2 Bd2 Be3 Be1 Re4 Rc4 Nc5 Kb8 Nb7 Qh2 Qh5 e8N+ Kf7 Qh3 Bf5 Nd6+ Kg7 d4 Bg6 Nfd3 Rh4 Bc3 Rc2 Ne1 Bfd3 Qf5 f1B Qa5 Qhe2 Bd2 Nd5 Bb4 Bdf5 Bc5 Nb4 Rh2 Rcc3 Ba7 Bb1 Bb5 Bd2 Bd7 Rch3 Bc6 Be3 Rh1 Rh5 Rh2 R3h4 Rh1 Rg8 Rh2 Bgc2 h8Q+ Kg6 Qh7+ Kf6 Nc5 Rh8 Ka8 Qd3 Bf3 Re4 Rh4 Rh6 Rh5 Rh4 Kb8 Be2 Qe4 Kg7 Na6 R6h7 Rh6 Kg8 Rh5 Qd1 Qd3 Rh6 Qc3 Bed3 Be4 Qde2 Bc6 R6h7 Rh6 Bg6 Rh5 Re7 Rh6 Rh5 Rh7 Re4 Qa4 Rg4 Qa5 Rgh4
q2R4/3QN1n1/knN1nqp1/1q1b1RQb/n7/1r4BB/2Pr1K1N/2NNb2b w - - 0 1 illegal: No possible last move, all moves rejected
2bB4/rNBbQ1R1/1q2P3/2n2N1n/1b3B2/K1RBb3/1nq2pQq/2B1k1rq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kf6 c4 Ke5 Kc2 g5 Kb3 f5 h4 d5 b6 a5 c5 f3 b7 a4+ Ka3 f2 b4 f4 h5 g3 c6 g2 h6 f3 h7 d3 c7 Kd4 e5 d2 e6 Ke3 Ra2 g4 Rh3 g3 Rh5 d4 Rh3 d3 Ne2 g1Q Nec3 g2 Rc2 Qh2 Rb2 g1B Ra2 Nd7 b8B Ra7 Ne4 Ngf6 Ng3 Rg8 h8B Nh5 Nc3 Nc5 b5 Rg4 Be2 f1B b6 Kf2 Qc2 d1Q b7 d2 Nb5 Ke1 Bf6 Be3 Nf5 Rg1 Bd3 f2 Nbd6 Bd7 c8Q Qb6 Qc6 Qe2 Qb2 d1N Bd8 Qc2 Qf6 Nb2 Qe7 Bg7 Bbc7 Bc3 b8B Ba5 Qb7 Bg2 Qa8 Bb7 Ra1 Bbc8 Nb7 Qc4 Rb1 Qc2 Rg3 Nd1 Rb3 Nb2 Ka2 a3 Rc3 Qa4 Rg7 Qac6 Kb1 a2+ Kc2 a1Q Bf4 Qa2 Bbc7 Qaa4+ Kb1 Qc2+ Ka2 Qch1 Ka3 Qg3 Nbd6 Qgh4 Qg2 Q4h2 Nb7 Bb4#
1Q1nRn2/2NN1b1r/p3N1rb/6N1/2qrqqn1/B1kqN3/1nP3BK/1QR5 w - - 0 1 illegal: No possible last move
NR3Qq1/1bPB1n2/k2B1b1N/p2qn1Qr/3N4/n1b2NK1/1nq4r/4NqR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 a5 c4 d5 e4 Kd7 h5 Kc7 e5 Kb6 e6 f3 e7 f4 e8Q g3+ Ke1 f2+ Ke2 g2 Kf3 d3 h6 d4 h7 d2 Ba3 d3 Qc1 d1N Nd2 Be7 Rb1 Bf6 Qf8 Nb2 c5+ Ka7 b6+ Ka6 c6 Nd7 b7 Nh6 c7 Nf7 Kg4 f3 Kg3 g4 Qcc5 Nc4 Qg5 Nde5 Rb2 Qd5 b8N+ Kb6 b5 Bb7 Be2 f1Q Bd6 f2 Ngf3 g1B Nc6 Qb1 Ncd4 f1Q Ne1 Na3 N2f3 d2 Rb3 Be3 Rg1 d1N Bd3 Ra6 Bf5 Bd2 Bd7 Nb2 Rb4 Ka7 Rb3 Rc6 b6+ Ka6 Rb5 Bc3 Rb3 Bc8 b7 Qc2 Rb5 Rc5 Rb4 Rg8 h8N Rg7 Rb5 Rh7 Rb3 Rh2 Rb4 Nd8 Nf7 Rb5 Nh6 Ndf7 Kf4 g3 b8N+ Kb6 Rb3 g2 Kg3 Bb7 Bf5 Nb1 Nd7+ Ka6 Nb6 Na3 Bd7 Rc5 Na8 Rb5 Rh1 g1Q+ Ng2 Qe3 Rg1 Qed3 Ne1 Qg6 Rb4 Rc5 Rb5 Qg8 Qe8 Bc6 Rb8 Bb7 Qf8 Rc4 Ne2 Rch4 Ned4 Rh5
1r3rq1/b2Npkn1/2B1RP1B/1n1R4/2Q2nNn/r3RR1r/r1Q1bK2/3R2r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 g4 h5 c4 d5 f4 e3 c5 a4 c6 a3 f5 e2 f6 a2 g5 h3 c7 h4 g6 h2 g7 d3 b6 d2+ Kf2 e1N b7 h3 b5 d4 b6 d3 Qa4+ Nd7 b8Q d1N+ Kg3 d2 b7 Kf7 Qc2 Nh6 g8R Nc5 Bb5 Ne6 Qh7+ Ng7 Na3 Bg4 c8R Nc3 Kf2 d1R Rc5 Nf5 Qf4 Rb8 Rd5 Nh4 Bc6 Neg2 Qc2 Nb5 Nc4 Rd3 Nb6 Ra3 Nd7 Be2 Qfc4 Nf4 Nf3 Qc8 Rb1 a1R Rhd1 h1R Rb3 h2 Re3 Rg1 Re6 h1R Nh2 R1a2 Ng4 Rhh3 Re3 Rba8 b8R Qd8 Rb6 Rb8 Qc5 Ngh5 Qd4 Bh6 Qdc4 Qc8 Rgg5 Qg8 Rgf5 Ng7 Ra6 Qh7 Rb6 Rhf8 Bd2 Qg8 Bc1 Nfg2 Rff3 Nf4 Red3 Nfg2 Ba8 Re1 Re6 Rg1 Bc6 Bf4 Bd2 Be5 Bf4 Bd4+ Rde3 Ba7 Bh6 Nf4
knBQBn2/N5br/bpR4n/KPB3N1/4bR2/1bQnq1nB/2q2B2/6q1 w - - 0 1 illegal: No possible last move, all moves rejected
1r1n2bn/1pn2Q2/r3n2R/3RBrbB/1P2kr1N/Q1br2r1/1B3BK1/N3B3 w - - 0 1 illegal: No proof kernel
2b2K2/2qpQN2/1p2N3/1qq1B2b/nP1r1r1B/3R1QBn/1r1R3b/3BB1kn w - - 0 1 legal: proof: e4 a5 b4 h5 d4 f5 exf5 c5 g4 hxg4 Qd2 cxd4 Qc3 a4 Qb3 axb3 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 h4 e4 f4 b6 a4 d3 c4 e3 a5 d2 c5 d1Q+ Bd2 e2 h5 e1N h6 b2 a6 g3 h7 g2 c6 g4 a7 g3 c7 Na6 Na3 b1B Rh3 Bd3 Nf3 g1R Nd4 g2 Ra2 Bh6 Kd6 Qc1 Be2 Rf1 Bd1 g1Q Nab5 Qc4 Ne6 Ng2 Be1 Be2 Rd3 Ne7 Rad2 Re8 h8B+ Bg7 Na3 Qb5 Nc4 Bh5 Ne5 Nc5 Nf7 Rf2 Ne5 Rb8 a8Q Na4 Nf7 Rf8 Qf3 Ra8 Rd4 Ra5 R2d3 Rc2 Rd2 Rb2 R4d3 Ba6 c8Q Qf2 Qc2 Bc8 Qcc6 Rg8 Ne5 Rf8 Ng5 Qa6 Qce4 Rc5 Qee3 Rc4 Qc5 Qa5 Ne6 Qb5 Ng6 Kf7 f6 Qg1 f5 Nf4 Qb7 Bh6 Qf3 Nh3 Bg7 Bf4+ Ne5+ Kg8 f7+ Kh7 Bf6 Kh6 Bfh4 Bh2 f6 Nf5+ Kd5 Ng7 Kd6 Qc7+ Ke7 Qg5 Qd6 Rd4 Qc5 Bg4 Qd6 Nh5 Qc5 Ng3 Qd6 Rd8 f8B+ Kh5 Bg7 Nh1 Bh8 Qf5 f7 Rg8 f8B Rg7+ Nf7 Qfc5 Bb3 Rg6 Bh6 Rf6 Bd1 Rf5 Be3 Rf6 Kf8 Rff4 Qg2 Bf3 Qe7 Be2 Qd5+ Kg4 Be5 Bf3 B3f2 Be2 Bfg3 Bf3 Re3 Be2 Re4 Kf3 Qa8 Kg2 Re3+ Kf1 Red3 Bh5 Qf3+ Kg1
bqq1rr2/2P1B2R/QrB4N/N3RBQ1/1n3b2/B2Bqn2/bp1n1k1p/K7 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 a4 Kf6 c4 Kg5 g4 Kf4 f6 d5 g5 e5 f7 b5 g6 h5 g7 d3 f3 Kg3 a5 e4 a6 b3 Kc3 b2 f4 e3 f5 h3 f6 b4+ Kb3 e2 Ka2 e1N a7 d4 c5 h2 c6 h4 c7 h3 Nf3 d2 Bc4 d3 Qb3 d1R Nfd2 Nf3 Qa3 Kf2 Nc3 Bd6 f8Q Be6 f7 Nc6 Nd5 Qc8 Nf6 Bf4 Nb3 d2 Qd8 Rh6 f8B Re1 Na5 d1Q Qd5 Qd3 Be7 Qe3 Qg5 Re2 Re1 h1B Qa4 Rb8 a8B Rh8 Kb1 Rb6 Bd3 h2 Ra3 Bg2 Rc3 Bf7 Rc5 Bb3 Re5 Be6 Rg1 Re1 Qb5 Rf1 Qa6 Ba2+ Kc2 Bh1 Rg4 Re1 Rh4 Bg2 Rh7 Rf1 Nd7 Nf6 g8B Ne4 Be6 Ned2 Nf6 Re1 Bef5 Rf8 Bb7 Re2 Ng8 b1Q+ Kd1 Qb2 Nh6 b3 Ba8 Nb4 Bc6 Qbd4 Bb2 Qdd8 Kc1 Qb8 Ba3 Qdc8 Kb2 Nh4 Bd6 Qh3 Be8 Be4 Rb5 Ba8 Bc6 Ree8 Be7 Qe3 Ka1 Nhf3 Re5 b2+
R1bBbnr1/Q7/2ppB2k/rn3B1n/1bB5/R3qrN1/2PbQb1N/2K1B3 w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 hxg4 b3 a5 b4 axb4 a4 g5 h4 f5 e4 Kf7 h5 Kg7 a5 b5 a6 b3 a7 c6 e6 b4 e5 b2 e7 b3 e8B f4 e6 f3 e7 g3 Rh3 f2+ Ke2 g4 Na3 b1B Nb5 g2 Bb2+ Kh6 Bd4 g3 Qe1 b2 Kd1 Ba2 Qe2 b1N Bg6 Qe8 Bf5 Na3 Nc3 Nf6 Ne4 Bf7 Kc1 Rg8 Nf3 g1B Nh2 g2 Ng3 Nb5 Bb6 d6 Bd8 Nbd7 Ra5 Bg7 Ra6 Qf8 e8B Qe7 Ra5 Nf8 Bed7 Qe4 Bde6 Qe3 Ra3 Bg6 Rh4 Be8 Rha4 N6h7 Bh4 Bc3 Ra6 Nf6 R6a5 Rb8 a8Q Rb6 Ra7 Ra6 Qb7 Ra4 Ra8 Ra5 Qa7 Bb4 Qg4 Bc3 Bfc4 f1R+ Qd1 Rf3 Qe2 Qe4 Qc7 Bc5 Qa7 N6d7 Bd8 g1B Bh4 Qe3 Bd8 Kg7 Bh4 B5b4 h6+ Kh8 h7 Kg7 h8B+ Kh6 Be5 Bf2 Bd8 Nf6 Bd4 Nh5 B4f6 Rg4 Bh4 Rg8 Ngf1 Bg1 Be1 Bf2 Ng3 Bxd2+
rRr1NQRR/npb5/1q2nKb1/1R1pBQ2/k7/bN4bB/1rn2P2/4R1b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 d5 Kd3 Kd7 h4 Kc6 c4 g5 a4 e5 c5 e4+ Kd2 g3 h5 g2 a5 e3+ Kd3 Kb5 f6 b3 c6 g4 a6 g3 c7 e2 h6 e1B a7 b2 h7 Na6 f7 Ba3 f8Q Ne7 Qdf3 Ba5 Nd2 b1R Bb2 Ka4 Ne4 Bf5 c8R Bc7 Rb8 Nc8 Ne2 g1B Bh3 g2 Nc1 Bgh2 Nb3 Bg6 Q3f5 g1B Nf6 Bhg3 Ne8 Qd6 Bc3 Rb2 Re1 Qb6 Rb1 Bce5 Re1 Nc7 Rb1 Rg8 h8R Ne6 Re1 Bc7 Rb1 B1h2 Rhe1 Bg1 Bd2 Nd6 Bf4 Nb5 Be5 Qa6 Rc8 Qb6 Rd8 Rc8 a8R+ Na7 Rb8 Rc2 Nd2 Ra2 Rb5 Rb2 Ke2 d3+ Kf3 Bcd6 Kg4 Bc7 Nb3 d2 Qb1 d1N Qbf5 Bh7+ Kh5 Ne3 Kh6 Nc2 Kh5 Ng7+ Kg5 Ne6+ Kf6 Rg4 Rd7 Bg6 Rg7 Rb4 Rc5 Rb5 Rgg8 Ra5 Rb5 Nc6 Qg5 Ra8 Qf5 Na7
1Q5K/qrRn2rN/Nrn1B2n/4br2/2N3pk/N3PQ1q/RprN4/2B4b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 h4 Kf6 d4 b5 a4 c5 d6 g5 e3 c4 a5 f3 Kg3 f2 d7 c3 d5 c2 d6 b3 a6 b4 h5 b2 h6 b3 a7 Qb6 d8N Nd7 h7 Bb7 Bh3 f1Q Ra3 Rc8 a8N Nh6 Qe1 Qa7 Qd1 Bg7 Rh2 Bh1 Ra2 Rc4 Nb7 Rb8 Na5 Rb7 Na3 b1R h8Q Qf5 Bd2 c1N Nc7 Nd3 Qb8 Nb4 Qf3 Rc2 Bc1 Nc6 N5c4 Kg6 Rd2 Kh5 Na6 Qe6 Rd5 f5 Rc5 Bf6 Qe2 Ba1 Nf3 Rbb2 Nfd2 f4+ Kh2 f3 Kg3 f2 Qf3 Nde5 d7 f1R d8N Nd7 Nf7 Rb6 Qd1 Rf5 Qf3 Rb7 Nh8 Rb1 Ng6 Bh8 Nf8 Be5+ Kf2 Rb6 Nh7 Kh4 Ke2 g3 Kd3 g2 Ke4 g1R Bg4 Nd8 Rc8 Nc6 Rc7 Qf7 Bh3 Qh5 Kd5 Qg4 Ke6 Qg3 Bg4 Qh3 Nf6 Ng8 Kf7 Nh6+ Kg7 b2 Bh5 Ra1 Bf7 Rg3 Be6 Rg4 Nd6 Rgb4 Kh7 g4 N6c4 Rb7 Kg7 R4b6 Kh8 Bd4 Nab1 Nc5 Ra3 Be5 Rh7 Qa8 Nb4 Rd7 Rg7 Rbb7 Nh7 Qa7 Ra4 Ra3 Na6 Rab3 Ra2 R3b6 Nba3 Rd6 Bd7 Rg6 Be6 Rgg5 Nf6 Rg6 Rc7 Rg7 Nh7 Nd7
1r1RR2B/1Bn1b3/4qn2/2B1NN2/1p1pb1B1/Qq2B3/KP1rrrkr/2q1Q3 w - - 0 1 illegal: No possible last move, all moves rejected
k5b1/N2qRN2/QR2bP1p/4n2q/1B1rb1B1/1B1B1nQ1/1B3p2/br1b1n1K w - - 0 1 illegal: No proof kernel
3qr3/Bk2BK1r/pn6/8/QqN2bRb/Bq4Pp/1Nn1B2Q/1b1BqqR1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 c4 Kd7 b4 Kc7 f4 e5 b6+ Kb7 c5 h5 b5 a6 f5 h3 f6 e3+ Kd3 h4 f7 h2 Nc3 h3 Nf3 e2 Qa4 e1B Nd1 Nc6 Bb2 Bh6 f8B Nge7 Rg1 h1Q Ba3 Bh4 Nd2 Bf4 Be2 Rh7 Nc4 Bd7 g3 Nc8 Be7 Qg2 Ndb2 Qf1 Rd1 Qe1 Ra1 Qb4 Rae1 Bg4 Bd1 Bf5+ Re4 Na5 Be2 Nb3 Bd1 Na1 c6+ Kb8 b7 Nc2 Be2 Nb6 c7+ Ka7 b8B+ Kb7 Ba7 Rc8 Bd1 Rb8 Ke2 d3+ Kf3 d4 Be2 Bg6 Kg4 d2 Bd1 d3 c8B+ Kc7 Rd4 e4 Bb7 e3 Bbf3 Ra8 Bfe2 Kb7 Re4 Qdd6 Rd4 Re8 Re4 Qd8 Rd4 Bh5+ Kf5 Bg6+ Ke6 Be4 Rd5 Bg6 Rg5 Be4 Rg7 Bf5+ Kf7 Be4 Bf3 e2 Bg4 e1Q Bge2 Nd7 b6 Bf5 Bg4 Be4 Bde2 d1Q Bgf3 d2 Bh5 Kc8 b7+ Kc7 Bhf3 Nb6 Bg4 Qc1 Bgf3 d1Q Bh5 Qb5 b8Q+ Kc6 Qd6+ Kb7 Qd2 Qb4 Bhg4 Qb1 Bgf3 Qdc1 Bd1 Qa2 Qh2 Qab3 Bde2 Qf1 Bg4 Qce1 Bh5 Ne3 Bd1 Bb1 Bhe2 Rhh8 Rg8 Nc2 Rg4 Rh7+
R7/4KR1q/p1rnpB2/P6n/NNQb2k1/B1n5/1QNNb2q/1Nr1bnn1 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 b5 f4 g5 d4 b4 a4 b3 h4 e3 c4 e2 f5 e1N f6 b2 d5 Qd7 d6 Ba6 f7 Bb7 c6 Rh7 c7 Rh6 c8Q Bf3 c5 g3 c6 g4 c7 Be2 Qc2 Nf6 Nf3 g1N Nfd2 g2 a5 Bg7 f8N a6 Ne6 g3 Nd4 Kg4 h5 Ne4+ Kd5 Re6 h6 Nef3 h7 Nh2 h8B Nf1 Qc3 Rh6 Nc2 Bd4 Bf6 Bf2 Qc4 Be1 Qh8 e6+ Ke5 Qh7 c8N Rh4 Nb6 Nd7+ Kd4 Rd8 Na4 Rc8 Ra3 Rh5 Rf3 Rhc5 Rh6 R8c6 Qb8 Ne5 d7 Nd6 d8N Nd3 Qb6 Nf4 Qb7 Qg7 Rh8 Nh5 Qb6 Qh7 Qb8 Rc7 Nc6 Rc8 N6b4 R5c6 Qb7 R8c7 Ra8 Rc8 Nba3 b1N Bb2 Nc3 Nab1 Nh3 Ba3 g1Q+ Rf2 g2 Qb6 Qh2 Rf3 N5f4 Ke5 g1B Qbd4 Nd5 Qb2 Nc3 Be7 Be3 Kf6 Ng1 Rf2 Qg8 Bd8 Bd4+ Ke7 Nh5 Rf7 Qh7 Kd7 Rc5 Bf6 R8c6 Ke7 Rf5 Qd5 Rf3 Qc4 Rd3 Ne4 Rd1 Ned2 Rc1
3r2B1/2Kb2p1/kq1B1R2/P4Bn1/b1bB1qp1/2NBbRb1/4q3/2n1QrNQ w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 e5 Ke3 d5 c4 Kd7 f4 Kc7 a4 b5 h4 Kb7 a5 d4+ Kd2 e3+ Kd3 e4+ Kc2 e2 Kb3 e1Q h5 d3 f5 e3 c6+ Ka6 h6 e2 c7 d2 c5 Qd6 c6 Qf4 h7 Bd7 f6 Bc5 f7 Nh6 f8B Be3 Qc2 d1B Bd6 Rd8 h8Q Nf7 Bb2 Ng5 Rh3 Qef2 Qh4 e1B Rf3 Qe2 Qh1 Bg3 Nc3 Ra7 c8B+ Rb7 c7 Nc6 Na4 Ne5 Bd4 Nd3 Nc3 Nc1+ Kb2 b3 Ka3 b2 Kb4 b1Q+ Kc5 b4 Qd2 b3 Qe1 Be8 Bf5 b2 c8B Bda4 Bce6 Rf7 Ba2 Rf8 Bg8 Bf7 Ra3 Bc4 Rb3 Rf6 Rb5 Rf7 Kc6 Rff8 Kc7 Rf7+ Bd7 Qg6 Re5 b1B Re6 Bf5 Rf6 Rff8 Bc6 Qh6 Be4 Bfd7 Bf5 Qh7 Be4 Qd3 Rg6 Qe5 Rf2 Rf3 Be2 Qf4 Rf6 Qhf5 Rf1 Qb5 Bf5 Qc2 Bed3 Qe2 Rf2 Qb4 Rg2 Rf1 Rf2 Qb5 Rf3 Qb6+
RR6/1bQ2pqN/1K5B/2bb3N/1P1rp3/1k1B1nnB/r4B1q/Qb3rbB w - - 0 1 illegal: No proof kernel
Q1R1nR1q/PB3QrN/3pqb2/K1B3N1/Bn3p2/B6n/br4r1/1kBnn3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 a4 Ke6 c4 Ke5 e4 b5 h4 g5 c5 f5 h6 d6 h7 f3 a5 d3 c6 Kd4 c7 b3 a6 b4 h5 f2 h6 b2 e5 g4 e6 g3 a7 g2 e7 b3 e8Q f4 Qdh5 Na6 Rh3 Nf6 Rh2 Rg8 h8B Be6 c8B Nb4 h7 Be7 Qc6 Rg7 Qf7 Ne8 Nc3 b1Q Nh3 g1N Nd5 b2 Nf6 Qa2 Ng5 Nh3 Bb7 Qb3 Ra2 b1R Rc2 Rb2 Be2 Qd5 Bd1 Qf5 Rg2 Ba2 Rg4 Qe6 Qg2 Ke5 Kc3 f1N Rg3 d2 Qh1 Rg8 Bg7 Rb8 h8B Ne3 Nfh7+ Bf6 Qc6 Ng2 Qf3 Rb1 Ba3 Ne1 Rc1 Qdd7 Ba4 Rb2 Qc6 Rd8 Qc8 Qde7 Qa8 Rd7 Nf8 Nbc2 Qh5 Q7f7 Qh7 Rb6 Ne4 d1N+ Kd2 Kd4 Rg6 Be5 Rf6 Nce3 Rc8 Rc7 Qf5 Qfd7 Nh7 Nd5 Rf8 Rb5 Bf6 Qg7 Bh4 Qgf6 Bf2+ Kc4 Qh5 Rg2 Neg5 Qg7 Qg6 Qgg8 Bg7 Qh8 Qh5 Ba1 Bgb2 Rb3 Bc1 Bf6 Bac6 Rg7 Qf7 Rb1 Bd7+ Kb3 Bb5 Nc2 Kd3 Rb2 Bfc5 Bd8 B5c6 Ne1+ Kd4 Kc2 Ba4+ Rb3 Kc4 Nb4+ Kb5 Bf6 Kb6 Kb1 Ka5 Rbb2
7Q/3B2n1/q1BN1Q2/n3rRK1/bN3Bbp/r2qbq2/Pp1B1R2/3rb1Bk w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 f5 g5 b5 g6 h5 d3 c5 g7 b3 d6 b2 d7 c4 Be2 b4 Na3 b1R Rh2 c3 Nc2 b3 Na3 h3 Be3 b2 Qc1 h4 Qf1 c2 Nb5 c1B Rf2 h2 Nd6 Nh6 g8Q Nc6 Bd2 Ra3 Nh3 Na5 Qh7 Qb6 d8B Qa6 Bc7 Be7 Bb8 Re8 Qh8+ Bf6 Bd1 Bg7 Ba4 h1B+ Rg2 Kd4 Nf2 Re5 Bb5 Be6 Bc6 Bb3 Bc7 Ba4 Bd7 Ng4 Bb8 Nf6 Bc7 Ne8 Bb6+ Rc5 e5 Kd5 e6 Bc3 e7 Ng7 e8B Rb5 Be1 Be3 d4 Rd1 Nd3 Rc5 Bd2 Rb5 Bc1 Be1 Bd2 Rc5 Ke2 Rb5 Rf2 Bg2 Rc1 Bh3 Kf3 Rc5 Rc4 Rb5 Rb4 Rc5 Rb5 Bg4+ Kg2 f3+ Kh2 Bh5 Kh3 f4 Ba7 Bf7 Kg4 Be6+ Kg5 Bg4 Nc8 Ke4+ d5 Rac3 Nb4 Ra3 Rg2 f2 Nd6+ Kf3 Bc6 Rc4 Bed7 Rd4 Rh2 Re4 Bd4 Kg3 Rg2+ Kh3 Be5 f3+ Bf4 Qa7 Rc5 Qb7 Qa6 f1Q Rf2 Qd3 Qb6 Qba6 Qbd8 Qf1 Qf6 Qad3 Nc4 Qfe2 d6 Re8 Rf5 Re5 Bc8 Qf1 d7 Qfe2 d8B Qf1 Rg2 f2 Bb6 Qfe2 Bd4 f1Q Rf2 Qf3 Nd6 Qa6 B8d7 Qfd3 Rf1 Kg2 Rf2+ Kh1 Re2 Bg1 Ba7 Bb6 Rg2 Bd8 Bg1 Bb6 Rf2 Be3
2R5/kNQB1qBR/n6q/7b/n3bP1p/pR3rbQ/2n3rq/nNK2R1R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 g4 h5 b4 d5 c4 Kd7 c5 Kc7 c6 Kb6 g5 a5 g6 h3 f3 h2 c7 e3+ Kc2 h4 g7 e4 Ra2 d3+ Kb2 d2 Bc4 a4 Qb3 d1Q Na3 d4 Nc2 e2 Nh3 e1N Ne3 a3+ Kb1 d3 Be6 d2 Nf5 e3 Nf2 e2 Nd6 Qe8 Nb7 Bd6 Bd7 Nf6 g8R Nc2 Ra1 e1N Ne4 Bg3 Rg7 Qf7 Nc3 Rg8 Rh7 Na6 f4 Nd5 Rf1 Qdh5 Bb2 d1B Kc1 h1Q Nb1 Qh6 Bg7 Rb8 Qd3 Ka7 b6+ Ka8 b5 Bh5 Qf5 Nc3 Qh3 Qg1 Bg4 Bd7 c8R Bc6 Bd7 Be4 Na5 Re8 b7+ Ka7 Kd2 Qa2 Rf2 Na4 Nc3 Bc6 Rd1 Ne3+ Kc1 Qb3 Nb1 Qf7 Rf3 Qh2 Rf2 N1g2 Rh1 Ne1 Rff1 Re5 Rc7 Rc8 b8R+ Bb7 Rc2 Rc3 Rc8 Rb3 R2c3 Rb2 Rb3 Rg2 Rc2 Rc5 Rcc3 Be4 b6+ Ka8 b7+ Ka7 Rc2 Rd5 Rc7 Rdd2 Rc8 Rdf2 Nc4 Rf3 Nd6 N3c2 Bb5 Na1 Bd7 N6c5 b8Q+ Ka6 Nb7 Nec2 Qd6+ Ka7 Qc7 Na6
1R1N2B1/RBrbr2n/4QB1k/bn2qr1B/1P3b2/1Brq1p1Q/6Kp/1N1q4 w - - 0 1 illegal: No possible last move, all moves rejected
knRr1QN1/4n3/1q2r3/B1R3Rp/3RK1P1/nn1Qp1Nq/3q1b2/rBR2b2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 c4 d5 b4 Kd7 c5 Kc7 b6+ Kb7 b5 h3 f5 e3+ Kd3 a4 f6 e2 f7 e1N+ Ke2 h2 Bd2 e4 Nc3 a3 Rc1 d3+ Ke3 a2 Nge2 a1N Ng3 Ra6 c6+ Ka8 c7 d4+ Kf4 e3 Nd5 Ne7 Ke4 Nb3 Ba5 d2 Nf6 d3 Rc5 Nc2 Ng8 Na3 Bg2 Bh6 f8Q Bf4 Bf3 Be6 c8R Bc4 Rf1 h1Q b7+ Ka7 Qc2 Qh3 Rc1 d1Q Be2 d2 Bd3 Qb6 Qb1 Nbc6 b8R Bg5 Rd8 Bh4 Rbc8 Nb8 Rd4 Ka8 Rg5 Qe2 Rcc5 d1R Qc2 Qeh2 Qe2 Rf1 Bb1 Qf2 Qd3 Qd2 Ne2 Bf2 Ng3 Qd8 b6 Rd1 Qc2 Bf1 Qd3 Rh6 Kf3 Re6 b7+ Ka7 Kf4 Rad6 Kf3 Qb6 Kf4 Rd8 Kf3 Na6 b8R Re1 Rbc8 Nb8 R1c3 Ka8 Rc2 Rg6 Ke4 Rc1 Ba2 Ra1 Bb1 Rgd6 Rc1 Re6+
b3k3/1nB1r3/NB2nR2/1qPrp1B1/2qbKNb1/2Q2QrR/2pBBq2/2r5 w - - 0 1 illegal: No proof kernel
2qK1R2/2rn1Nk1/Nb4pr/2nn1R2/rN3N1p/1B1Q1Q1N/3bqP2/1bn1B3 w - - 0 1 illegal: No proof kernel
1Rq3rn/b2NB2q/2p1b1BQ/nBn1BKbN/1R2B1p1/Q1P4k/4n3/1r2q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 d4 exd4 Qd3 g6 Qf5 g5 axb5 gxf4 g5 Qf6 Qh3 Qd8 Qg4 hxg4 Kd2 Ke7 Kd3 a5 Ke4 f5+ Ke5 d5 b4 c6 e4 f3 h4 f2 g6 f4 h5 a4 b6 d3 b5 d4 b7 d2 h6 d1N g7 a3 b6 f3 h7 d3 Nc3 d2 Rh4 a2 Nge2 Na6 b8Q Nc5 b7 Be6 Qa7 Nh6 g8B Ne3 Na4 d1N Ng3 Qc8 Nh5 Rb8 Ba3 Nc3 Rb1 a1B Bb5 f1Q Nb6 f2 Rb4 Qe1 Nd7 f1Q Rh2 Ne2+ c3 Bb2 Bf7 Qg2 Bg6 Rg8 h8Q Qgh1 Qa4 Bc1 Rf2 Ng1 Rfb2 Nf7+ Kf4 Kd6 Qh6 Nh8 e5+ Kd5 Kg5 Nc4+ Kf6 Ne2 R2b3 Bf5 e6 Ke4 e7 Kf3 e8B Be6 Be4+ Kf2 Qa6 Na5 B8g6 Bg5+ Ke5 Kg1 Qa7 Kh2 Rb2 Ra8 b8B Kh3 Bd6 Rb8 Qa8 Bd5 Kf5 Bg7 Rb1 Bd4 Be7 Bb3 Bc1 Bf2 Bf4 Be6+ Ke5 Re8 Ba4 Na6 Rb6 Nc7 Qf8 Nb3 Ng3 Kh2 Qg7 Rg8 Qa5 Ra8 Rb8 Na6 Bb5 Bb6 Qb4 Nac5 Qf8 Ra2 Qa3 Na5 Rb4 Rb2 Qg7 Ba7 Qf8 Ba2 Kf5 Rb1 Be5 Bc4 Bd3 Kg2 Qg7 Qh4 Be4+ Kh3 Qf8 Qh7 Nh5 Bd5 Qh6 Be6+
nb1R2Q1/1r1qk3/Qp4Q1/1B3n2/R6q/rqbpPb2/NQ3KNn/b3Q1B1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 h4 d5 c4 g5 a4 f5 e6 b3 h5 b2 e7 d3 a5 d2+ Kf2 f4 a6 f3 h6 g3+ Ke3 d4+ Kd3 b6 a7 g2 c5 f2 c6 g4 c7 g3 h7 Bg7 Ra3 Bg4 c8Q Na6 Qc4 Nc7 Qc5 Bf3 Qd5 Nh6 Nc3 Nf5 Nh3 g1B Nf4 g2 Na2 Bh2 Qe1 g1B Ng2 d1Q+ Bd2 Qa4 Be3 Qad7 Ra4 b1Q+ Kd2 Rf8 h8Q Qb3 Qdg8 Bhe5 Rh6 Bgh2 Rd6 Rb8 a8Q Rb7 Qa6 Na8 Bf4 Bg3 e3 Bef6 Bb5 d3 Qh2 Ba1 Rd5 Bge5 Qhh8 Bb8 Qb2 Bh2 Bd6 Be5 Rdd4 Bg7 Bh2 Bh8 Bg1 f1N+ Kc1 Nh2 Kd2 Bd5 Qh4 Bg7 Ke1 Bf3 Kf2 Bh8 Rd5 Bc3 Qb4 Bg7 Qe1 Bc3 Qg4 Kf7 e8Q+ Kf6 Qeg6+ Ke7 Qg3 Rh8 Qg8 Rh4 Q3g6 Rc4 Ra5 Ra4 Rd6 Ra3 Ra4 Qc6 Rdd4 Qe4 Rd6 Qc7 Rd8 Qd7 Qh8 Qed4 Qhg8 Qh4+
3N4/7p/n2qBB2/KrQnQ2q/bR4p1/1q1PRRR1/b2RnN1k/b4q1r w - - 0 1 illegal: No proof kernel
2n1n1bk/1QNB1npb/1r1bb3/R1PNq2p/2q3Rr/3N4/1B1qQ3/3K2NN w - - 0 1 illegal: No proof kernel
2B1b2B/1b3p2/BN6/4pBr1/2r1QN2/R1P2b2/nbrQ1RqK/k1Bqnn2 w - - 0 1 illegal: No possible last move
5qR1/3QKpR1/3p1N2/2n1nPq1/3b3N/1r2b1k1/Qrnbb1N1/Bq2N1NB w - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 Ke7 Kd3 Kf6 Ke4 g5 Kd5 Kf5 e4+ Kg6 f4 Kh5 h4 a5 c4 b3 c5 a4 f5 d3 b6 b2 b7 d2 c6 a3 e5 a2 c7 Na6 b8Q Ra7 e6 Nc5 e7 Ba6 Kd6 Bh6 c8N Nf6 e8N Rb7 Qa8 Be2 Nb6 g3 Nc4 Kg4 h5 g2 Nba3 b1Q Bb2 Rb3 Ne3+ Kg3 Nac2 Ng4 Ne1 Ne5 Nf6 g4 Qa3 Qg8 Ke7 Qg5 Qa7 Ra8 Qc2 d6 Qd7 d1Q Bc3 Qd2 Rh3+ Kf4 Rg3 Rab8 Bb2 Qg7 Bc3 Bg5 h6 Rb2 h7 R8b3 h8N Bh6 Ngf3 g1B Bg2 Qg5 Bh1 Bf2 Nf1 Bd4 Ne3 Qdc1 Rg1 g3 Qd2 g2 Ng6+ Kg3 Ngh4 Qe4 Rb1 a1N Qc2 Qa8 Qd2 Rb4 Qc2 R2b3 Qa2 Nc2 Ba1 Qb2 Rd1 Qb1 Rd3 Rb2 Ra3 Qh8 Ra8 R4b3 Rg8 Qhg7 Rf1 g1B N3g2 Bge3 Ng1 Bd2 Rf2 Qh5 Rf1 Bhe3 Rf4 Qhg5 Re4 B4c3 Rb4 Q7h6 Rbb8 Qh8 Rg7 Bcd4 Rbg8 Qh6 Rg6 Qh8 R8g7 Qa8 Rg8 Qc8 R6g7 Qf8+
1B1r1k1B/rQ1rnp1p/1RPn2b1/1B2q3/4Q1br/N3qR2/B2nN1B1/3Kb3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 d5 e5 fxe5 c6 Qd3 cxd5 Qd1 d4 e4 d5 b4 a5 g4 h3 c4 h2 b5 d3 c5 a3 g5 d4 b6 a4 g6 a2 e6 a3 g7 Nd7 e5 Qg5 e7 Qe3+ Qe2 d2+ Kd1 Ra7 b7 Nb6 b8B Nc4 Bb2 Bf5 Bg2 Bg6 Qf3 Nd6 Qb7 Qf4 Ne2 Qe3 Rf1 h1R Qe4 Rh2 Rf3 Rh4 Kc2 d1R Bc3 Kd7 e8B+ Ke7 Bc6 Rd2+ Kc1 d3 Bd5 Ke8 e6 Ne7 Be5 Rg8 Nbc3 Rh8 Rb1 a1Q g8Q a2 Nb5 Qad4 Bc4 a1N Na3 Qd5 Bb2 Qe5 Qg7 Rg8 Ba2 Rh8 Qf6 Bh6 Bc3 Kf8 Rb6 Bf4 Qff5 Bg3 Qb7 Be1 Qfe4 Nb3+ Kb1 Na5 Kc1 Nac4 Ba1 Rc2+ Kd1 Nd2 Qbc6 Rd7 Qb7 Rc4 Bb2 Ra4 Bd4 Ra7 Bc3 Kg7 Bd4 Rhd8 Bb2 Nef5 e7 Kg8 e8B Ne7 Bc3 Kf8 Bd4 Rc7 Bb5 Rcd7 c6 Nf1 Ba1 d2 Kc2 d1B+ Kb1 Qf5 Bh8 Nd2+ Kc1 Qe5 Nc4 Bb3 Na3 Be6 Kd1 Bg4
Nn6/3npQBb/pNR3Pq/1r1N4/5bKr/Nq1n2nR/2q1k3/1N1b2QB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Kg6 c4 Kf5 g4+ Ke6 b4 h5 g5 Kf5 c5 Kg4 c6 d5 c7 h3 f5 h4 f6 e3 f7 h2 b6 a6 b7 h3 b5 Bf5 c8N Qb6 Bb2 Bh7 g6 Bh6 f8Q Bf4 Nd6 Nf6 Qf7 Nfd7 Bg2 Qc7 b6 Qc2+ Nd2 Kg3 Rc1 Ra7 Nc4 d3+ Kf1 d4 Nb1 d2 Ke2 Kg4 Nca3 Qb3 Rc6 d3+ Kf1+ e2+ Kf2 Ra8 Bg7 Qc2 Qc1 e1N Ne2 d1B Qe3 d2 Nec3 Qb3 Nd5 Qc2 Rf1 h1Q Qd4 Qh2 Rh1 Ra7 Qc5 Bd6 Ke3 Nd3 Ke4 Kg3 Kf5 Bf4 Qg1 Qb3 Bf1+ Kf3 Bg2+ Ke2 Kg4 Bc2 Be4 d1Q Bg2 Qd2 Be4 Qf2 Rh2 Bd1 Bh1 Ra8 Rc4 Nc6 b8N Qe3 b7 Ra7 Rg2 h2 Rg3 Qd2 Rh3 Qc1 Be4 h1N Bg2 Ng3 Bh1 Qcc2 Rc5 Qh2 Rc4 Nb6 Nd7 Nb8 Rc6 Ra8 Nf8 N6d7 Ne6 Bg8 Nec7 Rh5 Rc4 Ra7 Na8 Bh7 Rc5 Nc6 b8N Rb7 Rc3 Rb5 Rc5 Nf8 Nd7 Nb8 N7b6 Nfd7 Bb2 Qcc3 Rc8 Qg7 Rc6 Qh6 Bh8 Qf2 Be5 Qc5 Bd4 Qcc2 Bg7 Rh4+
B3rN1B/2pbq1B1/BR1qr2b/k3N1nP/B1r1Qnbq/4K2R/p6r/Q7 w - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 fxe5 h6 Qc2 hxg5 Qd1 g4 Kf2 Kd7 b4 Kc6 e4 Kb5 h4 a5 d4 g5 d5 f5 d6 f4 e6 a3 e5 a2 d7 g3+ Kf3 g4+ Ke4 g2 e7 a4 e8B a3 e6 f3 e7 f2 Bh6 g3 Qc2 Na6 Bg7 Nc5+ Kf3 Ne6 Bh5 Ng5+ Ke3 Nf6 e8B Qe7+ Qe4 Rh7 d8Q+ Bd7 Nf3 g1R Rh3 g2 Nbd2 Rb8 Bhf7 Nh5 Rb1 a1Q Nb3 a2 Bd5 Qae5 Ba8 Nf4 Nc5 Q5d6 Ne6 Rh8 Be2 Re1 Ne5 g1Q h5 Qh2 Rb3 f1B Qc8 Kb6 b5 Ka5 b6 c3 b7 c2 Rb6 c1R Qd8 Rc6 Qc8 Rec1 Ba6 R1c4 Qd8 Rh6 Bh8 Rc8 b8B Be2 Ba7 Bg4 Bg7 Rg6 Bh8 Bh6 Nf8 Re6 Bg7 Qf7 Qf6 Qfe7 Bh8 Rc2 Qg7 R6c4 Qf6 Nd3 Qf1 Rb8 Qa1 Nf4 Bg7 Bc8 Ba4 Bd7 Rb1 Rc8 Bd4 Re8 Rb6 Rg2 Bh8 Rgc2 Neg6 Rb2 Bdg7 Qh1 Ne5 Rh2 Qg2 Qe1+ Qe2 Qh4 Qf3 Bc6 Qe4 Bd7
n2n1B1Q/NRbrb2B/2Q2p2/5bq1/1Q6/1nPpQQ1K/5RN1/kr1b1b1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 e4 Kf6 b4 Ke5 g4 h5 Kg2 d5 g5 a5 b6 f3+ Kh2 h3 b7 h4 b5 f2 g6 a4 b6 a3 g7 a2 Nc3 d3 Bh6 Kd4 e5 d2 e6 Rh7 e7 Nf6 g8Q Ne8 Qf3 d1B Qg6 Nc7 e8Q Be7 Bg5 Nc6 b8Q Bf5 Qc8 Rb8 b7 Na8 Be2 f1B Rc1 a1B Qgh5 f6 Bh6 Qa5 Qg5 Nd8 Rb1 Bb2 Qg7 Bba3 Qcc6 Bad6+ Qgg3 Bc7 Bd3 Qc5 Be4 Kc4 Rb2 d4 Nb5 d3 Na7 Kc3 Qh8 Rf7 Bf8 Rg7 Qb5 Qe3 Rb4 Qg5 Qe3 Rf7 Nf3 Rh7 Ne1 Rg7 Kg1 h2+ Kf2 h3 Ng2 Rh7 Qgf3 Rg7 Rg1 h1B Rb2 h2 Qc6+ Bc5 Rb6 Rd7 Rb5 Bg4 Bh7 Bf5 Ra5 Kb2 c3 Kb1 Rb5+ Ka1 Rb3 Rc8 b8Q Be7 Qb4 Rb8 Nf4 Rb5 Rg4 Rb7 Kg3 Rb6 Rb2 Rb5 Rf2 Rb7 Qbc4 Rb1 Qb4 Bhg2 Qb3 h1N+ Kh2 Ng3 Qbc4 Bh1 Ng2 Ba5 Kh3 Ne2 Q4b5 Bc7 Qbc5 Bg6 Rb4 Nc1 Rb7 Nb3 Qb4 Bf5+
4rKRr/1b2Q1QP/2p3Nr/k7/qpQb1B2/1n5r/R1Q1Q1b1/2r1rNnB w - - 0 1 illegal: No possible last move, all moves rejected
2q4b/2nN1BBb/QrR3NB/Q1b1KrP1/7p/3B2B1/Rp1rb2n/1bk3r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 h5 a4 b5 a5 c5 g5 f5+ Ke5 f3 a6 b3 a7 f4 d6 f2 d5 b2 d7 b4 d6 h3 Nc3 b1B Ra6 h2 Ra4 f3 Nh3 h4 Qd2 Kb3 e4 c4 Be2 f1R Ra5 f2 Bb2 Na6 Nf4 Rh6 Ncd5 c3 Nf6 c2 Ng6 c1B Bd3 Nc7 Ra2 Rb8 a8Q Rb6 Rg1 h1R Qa6 Be7 Rg4 Rhg1 Ba1 Qf8 d8B Bf5 d7 Bc5 Be7 Qc8 d8B Rh8 Qe1 Nh6 Bf8 Rg8 Bd4 Bb2 Nd7 Bc3 Bde7 Bb2 Bg7 Rd8 Bd6 Ba1 Rg2 Bc3 Rc2 Ba1 Rc3+ Kb2 Bdf8 b3 Be3 Ba2 Bf4 Bb1 Bg3 Ng4+ Kf4 Rb7 e5 Nh2 e6 Rb6 e7 Be4 e8B Bf5 Ne7 Be4 Bf7 Bh7 Ne5 Rd7 N7g6 Rdd6 Nd7 Rd5 Bc2 Rd2 Qe5 Kc1 Bd3+ Kd1 Rc2 Bc3 Ra2 b2 Bh6 Kc1 Bfg7 Rfd1 Qd5 f1B Re2 Bf6 Re6 Be2 Rc6 Rdf1+ Ke4 Rf5 Qe5 Rc2 Qc3 Be5 Qca5 Rd2 Bf8 Bh8 Bfg7 Rf4+ Ke5 Rf5+
rbn5/2Rb4/Nr2K3/QQNpBNkp/2n1n2b/4NqB1/3P1RNn/4b2b w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b7 Bh6 b5 Bg7 b6 Bf8 Bb5 cxb5 Ke2 Kf7 Ke3 Kg6 Kf4 d5 Ke5 h5 c4 a5 g4 a4 f4 h3 g5 e3 c5 h2 c6 b4 c7 a3 Bb2 e2 Qb3 e1B Nf3 a2 Rf1 h1B Rf2 Nd7+ Ke6 Rh6 b8B Ngf6 b7 Ne4 Nc3 Bg7 Qa4 b3 Qa5 Qf8 Nd1 Be5 Rc1 a1B Ne3 Bd6 Bc3 b2 Be5 b1N Rc5 Na3 f5+ Kh7+ f6 Kg6 f7 Nc4 Bg3 Bf6 Nh4+ Kh7 Nhg2 Kg6 Ba7 Bf4 b8N Bb7 c8N Ndb6 Nd6 Bc6 Ndf5 Nc8 Na6 Bb8 Bb6 Bfe5 Bh2 Bg3 Bc7 Bh4 Bce5 Qg7 Beg3 Qc3 Ng4 Qf3 N4e3 Rh8 Be5 Rd8 f8Q Rd7 Qfd8 Rb7 Bhg3 Rb3 Qd7 Rb6 Nd6 Kh7 g6+ Kh6 g7 Kg6 Ndf5 Kg5 Kf7 e6 Bb2 e5 g8N Nc3 Nf6 e4 Nd1 e3 Ke6 e2 Nde3 Ne4 Bbe5 Qf4 Qb7 Qf3 Nd7 Qf4 Qa7 Bb7+ Rc6 Qg4 Qb5 Qf4 Rf3 Bf2 Ndc5 e1N Nb4 Qg4 Rd6 Bc6 Rd7 Qf4 Rc7 Qg4 Rf4 Nf3 Qa2 Nh2 Nba6 Be1 Rf2 Qf3 Qaa5 Bd7+
2q4r/4krb1/np5R/npN1br2/BbbQP1N1/3BB3/4R3/1BQr1bKB w - - 0 1 legal: proof: f4 h5 g4 hxg4 b4 e5 fxe5 c5 d4 cxd4 b5 a6 Bb2 axb5 Ba3 Qe7 Bc1 Qd8 Kf2 g5 a4 f5 h4 f4 c4 d3 a5 f3 h5 d2 h6 Bb4 e3 Na6 e6 Ne7 c5 Ra7 h7 Nc6 Rh6 Ke7 Nh3 g3+ Kg1 g2 Nc3 g4 Bd3 Qc7 Qf1 d1R Na4 Rd2 Qe1 Rf2 Ra2 Qd8 Re2 Rf1+ Kh2 g1B+ Kh1 g3 Nf2 Qf8 Ng4 f2 Bd2 Qg8 Qc1 Bh2+ Kg2 Ne5 c6 Nc4 c7 d5 Nc5 Bd7 c8B b6 Bc2 d4 Ba4 d3 Bb7 Re1 Be4 f1B+ Kh1 Qc8 Bf5 Ke8 e7 Be6 Be4 Kf7 e8B+ Ke7 B8g6 Bd5 Bc3 d2 Bd4 Bf7 Bb1 d1R Bgd3 Rd7 Rc2 Re2 Rd2 Rf2 Re2 Nb8 a6 Rf5 a7 Na5 a8B Na6 Bg2 Bc4 e4 Kd8 Bf2 Rdf7 Be3 Ke7 Bd2 Bg1 Bf4 Bd4 Be3 Be5 Kg1 Bg7 Bh1 g2 Kh2 Rhf8 h8Q g1B+ Kg3 Bf2+ Kh2 Bg3+ Kg1 B3e5 Qg8 R7f6 Qd5 R6f7 Qd4 Rh8
2Nn1Nn1/r1N4P/2rbrB2/3N2n1/b1R4q/R1NQ1rQ1/p3Bp2/1rk1nK2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 h5 f5 h6 d5 c5 g5 h7 a4 b6 d3 c6 Kd4 b5 a3 e5 f3 c7 a2 e6 g3 b7 f2+ Kd2 g2 e7 f4 e8Q f3 b6 g4 Rh6 g3 Nh3 g1N Qb5 g2 Nf4 Nh3 Nc3 g1N Be2 f1R Qb2 Ng5 Qbb3 Ra7 Rf6 Bd7 c8N Nc6 b8N Bd6 b7 f2 Bb2 Re1 Qa3 N1f3+ Kc1 Ke3 Rh6 d4 Na6 d2+ Kc2 Qf6 b8N Nd8 Nc7 Ba4+ Qb3 Qe7 Qb1 d1R Rh3 Rd3 Nd7 Qf6 Qd1 Qh6 Rc1 Qh4 Ba1 Rf1 Nf8 Re1 N3b5 Rc3+ Kb2 Rd3 Rc4 Rc3 Qb1 Kd2 Nfd5 Rec1 Qg6 Ne1 Qb1 Re3 Nbc3 Rf3 Qe4 d3 Qe5 Bb5 Qg3 Be8 Qb5 Rc2+ Kb3 Kc1 Qd7 d2 Qf5 d1R Qd3 Bf4 Kb4 Ba4 Kc5 Ne4+ Kd4 Bd6 Bf1 Rf7 Ke3 Ng5 Be2 Rf6 Nb1 Rg6 Bf6 Rh6 Rd4 Rc4 Nbc3 Rc6 Rc4 Rg6 Bg4 Rh6 Ke2 Rg6 Kf1 Rh6 Bd4 Rg6 Be2 Re6 Qe4 Rd3 Bf6 Rf3 Qd3 Ne7 Nd7 Re8 Nf8 Ng8 Qf5 R8e7 Qg6 Rb7 Qd3 Rb1 Na8 Rb4 Qd4 Be5 Nb5+ Rc3 Qgg4 Rb7 Nac7 Rb1 Re3 Qh5 Qg3 Ra7 Rf3 Bd6 Rd3 Rc2 Ra3 Qh4 Qe4 Rc3 Qg6 Bc2 Qf5 Rf3 Nbc3 Bd1 Qd3 Ba4
6N1/rB1BP3/p5nr/N1Rp1b2/nbR5/q2nnBBK/nBb4Q/3Qbk2 w - - 0 1 illegal: No possible last move
R2RN3/Rnb1b3/4Bbn1/Qnk5/R3Kn2/p4rNR/bPpr3Q/2B2rq1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Kd6 h4 f5 d4 a5 b6 c5 h5 g5 h6 a4 b7 c3 h7 a3 d5 g3+ Kf3 g4+ Ke2 f3+ Kd3 f2 Be3 c2 Rh2 c1N+ Kc4 f4 Nf3 g2 Qc2 g1B Qd3 g3 Rh6+ Be6 Ne5 g2 Kc3 c4 Kd4 c3 Qe2 c2 Qh5 f3 Ng4 Na6 b8R Be7 Rb7 Nc7 Nc3 Bh2 Nf6 g1B Bh3 f1R Ra7 f2 Ne2 Nd3 Ng3 Nc5 Rd1 Nb7 Bc1 Nb5+ Kd3 Qb8 e5+ Kc5 d6 Ba2 d7 Qc7 d8Q Qb6 Ke4 Rb8 Qd2 Rd8 Qa5 Rd2 Ne8 Bf6 Qe2 Ne7 e6 Ng6 e7 Rf8 h8R Rf7 Be6 Rf8 Nh1 Bc7 Rh4 Bgh2 Rg4 Bhd6 Rh3 Rf7 Ng3 Rf8 Ng7 Rf7 e8R Bde7 Rgh4 Rd6 Qed2 Bd4 Bg4 Qc6+ Kd3 Re1 Rd8 f1N Rb8 Ne3 Bd7 Qh1 Ne8 Ref1 Qh2 Ng2 Rba8 Qg1 Be6 R7f5 Rd2 Bdf6+ Rd4 Rd8 Ke4 R5f3 Ra4 N2f4 Rd1 Rdd3 Rd2 Rc3 Rd7 Rcd3 Rdd8 Rd2
1nr2KN1/B7/3kNbB1/3q1np1/3P1pr1/bQ1B1BrQ/RR2n3/Bb1nr3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 c5 e4 b5 h4 f5 d4 g5 h5 b3 a5 f3 Kg3 b4 h6 b2 a6 c4 a7 b3 e5 f2 d6 c3 h7 c2 e6+ Kc6 e7 Nd7 e8B Be7 Ne2 Nh6 Nf4 Bf6 Bg6 Rf8 h8Q Nb8 d7 Kd6 Nd2 b1N Bb2 c1B Ra2 Nc3 Bd3 f1R Ne6 Re1 Ba1 b2 Rh2 b1N Qb3 Ba3 Re2 Qa5 d8B Qd5 Bb6 Nd1 Rh2 Nbc3 Ne4+ Kc6 Rhb2 f4+ Kh2 g3+ Kh3 Nf5 Kg4 g2 Qh3 g1R+ Kh5 Ne2 Bc5 Be5 Nf6 Rg4 Ng8 Bf6 Bb6 Ba6 Bc5 Rc8 Bb6 Ne7 Kh6 Kd6 Kh7 Nd7 Kh6 Nf5+ Kh7 Rab8 a8B Rc3 Bc6 Rc8 Ba7 Nb8 Ba8 Qe5 Bf3 Qd5 Bh5 Bc4 Kg6 Bb5 Kf7 Bc6 Bg6 Ba4 Qb5 Bc2 Qb3 Bb1 Bc2 Re3 Bd3 Rc4 Kf8 Rc7 Bh1 Reg3 Bf3 Rc8+
8/QrB5/bbnpN1R1/qbQ2RKP/1bBn1B1B/3Nr2r/1p1B4/2n2n1k w - - 0 1 illegal: No proof kernel
k1nQ4/3bBBPn/1p1R4/3bK1b1/rp4Bn/3qBb2/1rrR1QBN/6nN w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 h5 Ke4 c5 g4 Kc7 d4 f5+ Ke5 b6 e4 Kb7 a4 f3 d6 f4 g5 h3 a5 h4 g6 f2 d7 c4 d5 f3 g7 h2 d6 h3 Kd5 c3 e5 c2 e6 Be7 Kd4 Nf6 Bg2 f1R Ne2 Rf2 Qf1 Nh7 Ng3 Bg5 Be3 c1N e7 Ne2+ Ke5 Ng1 e8B Rb2 a6+ Ka7 Qe2 f2 Ra2 f1N Qf2 Nd2 Bf7 Rf8 Bf3 Rg8 Bg4 Nc6+ Ke6 Ndf3 Nd2 Rh8 Ndf1 Nh4 Kd5 Ne7+ Ke5 Kb8 a7+ Kb7 Ra1 Rg8 Rd1 Re8 Rd2 Rf8 Bg6 Rf4 Bf7 Rc4 Re2 Rcc2 Rd2 Qe8 d8B Qb5+ Bc5 Qd3 Be3 Be6 d7 Nc8 Be7 Bf5 d8Q Bd7 Qg8 Ne2 Rg1 h1B Qd8 Bd5 Nh1 h2 Rg2 Ng1 Rg3 Rb8 a8B+ Ka7 Bb7 Ra8 Rf3 Kb8 Rf6 Ra4 Rd6 Ka7 Nhg3 h1B Nh2 Bhf3 Nh1 Qa3 Ba6 Ka8 Bf1 Qb3 Bg2 Qd3
K1R1qr2/2B2BNp/1r1q1nRb/Q7/1Q5b/N1br3P/1p1b4/nr1NNkN1 w - - 0 1 legal: proof: d4 f5 g4 c5 e4 cxd4 f4 fxe4 f5 b6 b3 Ba6 b4 Bc4 b5 Be6 f6 Bf5 gxf5 a6 Qg4 axb5 Qd1 b4 Kf2 Kf7 a4 g5 c4 e5 a5 d5 c5 g4 h3 g3+ Ke2 b3 a6 b2 a7 e3 Kf3 b5 c6 g2 c7 e4+ Kf4 d3 Ke5 d4 c8Q d2 Ra5 e2 Qc7+ Nd7+ Kd5 e1B Kc6 e3 Kb7 b4 Rd5 b3 Qc5 d3 Rd6 e2 Nc3 b1R Qb4 b2 Qda4 d1R Qaa5 Bh6 Bf4 d2 Rh2 Rc8 a8N Rc6 Nc7 Qe8 N7b5 Bh4 Na3 e1B Ka7 Rb6 Bc4+ Qe6 Be5 Nc5 Ka8 Nb3 Rc6 Na1 Rc8 Bef2 Bc7 Bfe3 Nf3 g1B Ne1 Bd4 Rg2 Bge3 Rg6 Bef4 Ne4 Bc3 Nf2 Rdc1 Ba2 d1Q Bb3 Qd8 Nd1 Rc2 Bd5 Rd2 Bc4 Rd3 Bd5 Ke8 f7+ Kd7 f6 Qde8 Bb3 Kc6 f8N Bc1 f7 Qd6 Nd7 B1d2 f8N Nf6 Bf7 Rg8 Ne6 Rf8 Qaa4+ Kd5 Ne5 Bde3 N5f3 Bed2 Ng1 Ke5 Nc4+ Ke4 Ng7 Kf4 Qaa5 Ke4 Nf2+ Kf4 Na3+ Ke3 Ngf3 Ke2 Ng1+ Kf1 Nd1 Qee5 Rb8 Qe2 Rc8 Qe8
RB2Q1br/Q1P1r2k/b1K1q3/b4np1/3q1nB1/p3n3/5Q1N/QnR1bN1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Rh7 h4 g5 b4 d5 e4 a5 c4 f5 b6 Kf7 h5 Kg7 b7 a4 e5 d3 c5 d2 c6 a3 e6 f3 Ke3 f2 Kd4 g3 c7 g2 b5 f4 e7 f3 Kc5 d4 b6 d3 Rh3 Qe8 Rg3 Be6 Rg4 Na6+ Kd6 Nb4 b8Q Nd5 b7 Nh6 Be2 f1N Ra4 f2 Nf3 g1B Nh2 Nf4 Bb2+ Kg8 Bd4 Nf5+ Kc5 Qg6 Kc6 Rf7 Qc1 d1Q Ba7 d2 h6 Ng7 Bg4 Nf5 Nf3 N1e3 h7+ Kg7 Ra5 Bh2 Ra6 f1B Qc3+ Kh6 h8Q+ Rh7 Qc1 Bg3 Nh2 Qg8 Qhc3 Rh8 Qd8 Kh7 b8Q Be2 Qd5 Be1 Q3c2 Bd3 Qb6 Re8 Bb8 Bg7 Ra7 Ba6 Qh1 Bc3 Ra8 Ba5 Qa7 Qg6 Q2b2 Qf6 Qa2 Qe5 Qcb2 Bg8 Qc3 Qb3 Qcc2 d1N Nd2 Nc3 Rc1 Qg7 Ndf1 Nb1 Qf2 Qd4 Qab2 Rf8 e8Q Rf7 Qc3 Re7 Qa1 Qe6#
1q3nRN/p1r2n1B/1rPbq3/2KR1Bn1/5B2/nN6/2pQrkbB/1r1Q1B2 w - - 0 1 illegal: No proof kernel
1Q1q4/NpB4q/1Pq1nq1k/KBr1B2r/1BQ1bR1R/1B1pn1q1/5N2/3r3n w - - 0 1 illegal: No proof kernel
7Q/1K1p1R1b/1b1nQ2q/2QP4/QRn1nbq1/2Qp2kN/3B1bN1/2q1r1bB w - - 0 1 illegal: No proof kernel
6B1/1B2rnn1/1npnp1BQ/K2b4/Rn1B1n1n/2qQb1k1/B1P2RN1/2bN4 w - - 0 1 legal: proof: e4 b5 h4 d5 g4 dxe4 f4 g5 h5 a5 b4 gxf4 g5 axb4 Nh3 Ra6 Ng1 Rg6 hxg6 Bf5 Bd3 Bh3 Bf1 Bc8 a4 Kd7 d4 Kd6 Kd2 f5 d5 Ke5 d6 h5 g7 e3+ Kd3 e2 a5 e1B g6 e6 d7 b3 a6 h4 a7 f3 a8B h3 Bb7 b4 Kc4 h2 Kb5 b2 Be2 f2 Bf1 b3 Bg5 f4 Ra8 f3 Be2 f1N Be4 f2 Bb7 Ne3 Qd3 f1N Ra3 Nd2 Be4 Ng2 Bh6 Bf2 Qe3 Nh4 Qa7 Be3 Ra5 Nc6 B2d3 Rh7 Bg2 Bb7 Bf5 Qc8 d8Q Nc4 Qd3 Nb6 Bfe4 Ba3 Qf1 Nb4 Nc3 b1N Qd3 Nd2 Ra4 Ndc4 Nge2 Bac1 Rf1 h1N Nd1 Ng3 Nf4 Nh5 Bd5 Nd6+ Ka5 Bc6 Bg5 Nh6 Rf2 Ba8 Bge4 Qh8 Ng2 b2 Qa3 b1N Ba2 Bb7 Qd3 Nc3 Bf3 Be4 Bf6+ Kf5 Be5 Ne2 Bc3 Kg5 Bb2 Qc8 Bd4 Bc6 Be4 Kg4 Bed5 Kg3 Bf3 N6d5 Qc5 Nb6 Qg5+ Kh2 Be4 Nef4 Qf6 Kg3 Qf8 Bb5 Bb7 Bc6 Qf6 Bd5 Qg5+ Ng4 Qh6 Ne5 g8B Kh3 g7 Kg3 Bf7 c6 Ba1 Qh8 g8B Qf6 Be8 Re7 Bb2 Ng7 Bg6 Nef7 Ba1 Qd4 Bc3 Qc4 Bd4 Qc3
1q1RB3/2B3p1/2q3R1/3QnbnB/pB1Kq1Pn/n3Qr1N/2NB3r/1r1k2r1 w - - 0 1 illegal: No possible last move, all moves rejected
4Q1q1/N3N3/K1nn1rp1/1b1Q1N1n/pB1Np1B1/Pr1R1b2/5bN1/R3qqk1 w - - 0 1 illegal: No possible last move, all moves rejected
3b1bQ1/5Nr1/1Bn5/1Bp2r2/2N2pk1/Rq2r1Nr/1pNPR1r1/1Knb1Q1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 a4 g5 h4 f5 e5 b5 a5 g3 d6 Ke6 h5 g4 d7 b3 h6 f3 h7 b2 a6 f2+ Ke2 g2 Kd3 b4 Kc2 b3+ Kd3 g3 a7 Nf6 Na3 b1R Ne2 g1B Rh2 g2 Ng3 Nh5 Nh1 Ng3 Nc2 Ne2 Bb2 Nc6 Bd4 b2 Bb6 Nc1+ Kc3 f4 Ra3 Kf5 Bb5 f1R e6 Rf2 Qf1 Kg4 e7 Re2 e8N Re3+ Bd3 Qe7 d8Q Qf7 Ng7 Be6 Nf5 Bb3 Qd5 Rg8 h8N Rg7 Qe6 Bf2 Qc8 g1R Nfg3+ Qe6 Nf7 Rg2 Qe8 Rd8 a8N Rd5 Qc8 Rf5 Qd8 Bd5 Qe8 Bf3 Qd8 Bd1 Qe8 Re4 Bb5 B2c5 Qd8 Bce7 Qd5 Bd8 Qdc4 Rg1 Re2 Rg2 Qd5 Nd3 Kb3 Re3 Ka2 Rc1 Ne1 Rc4 Kb1 Rc3 Nc2 Nc1 Qb3 Qc4 Qa2 Qb4 Qe6 Qb3 Qe8 Bb4 Qg8 Bd6 Bc5 B6e7 Nb6 Bf8 Nc4 Rcd3 Ne4 Rh3 Neg3 Re3 Bb6 Nb4 Ne1 c5 Nc2 Nc6
4nbRN/K6r/1p4qN/Q5N1/QnpPnR2/N2pk1rB/4nNrB/5n1b w - - 0 1 illegal: No proof kernel
3R2Kb/5rRB/P1nqk1np/4B2Q/pr6/N1QN3b/rrp3bN/1rN2N2 w - - 0 1 illegal: No proof kernel
1n2k3/n2p3r/1nQ3b1/1P2B1b1/p1Rp2KB/NQRB1B2/qn4r1/3NBnr1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 b4 f5 c4 g5 h4 g3+ Kf3 g2 e4 a4 b6 Rh6 b7 Ne7 b5 Nd5 h5 Be7 c5 Rh7 c6 Nb6 Nh3 g1R h6 Ra6 e5 g4+ Ke2 g3 Kf3 g2 c7 Bg5 e6 Qe7 Bd3 Qa3 e7 Qa2 Bd2 Ra8 Na3 Ra6 Kf2 f3 Kg3 f4+ Kg4 f2 Qb3 f1N Rc1 f3 Rc4 f2 Be1 Nd2 Rc3 f1N Nf2 Ng3 Nd1 Ndc4 Rh2 Nc6 b8B Bb7 c8B Nb2 Be5 Ba8 Bb7 Nb8 Bf3 Be4 Rh3 Bg6 Rc4 Nf5 B5g3 Nd6 Bh4 Ndc8 Rg3 Na7 Rh3 Rf7 h7 Rg7 h8B Rh7 Bb4 Rf1 Bf6 g1N Be5 Ne2 Bbe1 Rh1 Rh2 Ng3 Rhc2 Rf1 R2c3 Rg1 Rc7 Bd2 Bh8 Bh5+ Kh3 Na8 Bf2 Re6 R7c6 Bg6 Be1 Re2 Kg4 Reg2 R6c4 Nb6 B8f6 Kf7 Bg7 Ke6 e8Q+ Kd6 Qg8 Bg5 Qc8 Ke7 Qc6 Ke8 Be5 Nf1+
b4b2/B2N1nRr/1br1n3/1B1np3/2P1QR1p/1Q1B3K/bpq2B1N/1rkB4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 a4 Kf7 f4 Ke6 Kf2 Kf5 Kg3 b5 c4 d5 a5 e5 a6 h5 g6 d3 g7 h4+ Kh2 d4 a7 e3 g4+ Ke4 g5 d2 f5 b3 f6 e2 g6 Ke3 f7 e1B Nf3 d3 Rg1 b4 Be2 b2 Qb3 Rh7 Nc3 b1R Na4 Bf2 Bd1 Nc6 Nc5 Nd4 Nd7 Ne6 Kh3 Nh6 g8B Bb7 g7 Rc8 a8Q Rc6 Nh2 Qa5 Rg4 Qa2 Rf4 Qc2 Ra7 Bg1 Qc8 Ba8 Qb7 Bc5 f8B Nf7 Bd6 Bf2 Bb8 Bf8 Qa2 b3 Ba3 b2 Qab3 Nd6 Bf7 Bg1 Be8 Nf7 g8B Bf2 Bf3 d1N Bc5+ Kd2 Bg4 Ne3 Bd1 Kc1 Bd4 Rh8 Bh7 d2 Bd3 Nd5 Bc5 Bg1 Bf2 Rh5 Q7b6 Rh7 Qe3 Ba3 Qe4 Bf8 Bh5 d1B Rc7 Qc3 Bba7 Bc2 Bd1 Qd2 Qb4 Bb3 Qb5 Ba2 Qb3 Rd6 Nb8 Ra6 Bb5 Rc6 Re7 Qc2 Nd7 Nh6 Rg7 Nf7 Be1 Bd4 Bf2 Bb6
2Q2Br1/1QP5/N2rBNbB/pR2p3/Kn6/1bR2rn1/nBpb4/1q1Bk2b w - - 0 1 illegal: No proof kernel
3N4/n2B1QR1/q1Bp1nB1/N4Rrq/K7/b2p4/q1BPbqp1/1BQr1q1k w - - 0 1 legal: proof: f4 a5 b4 axb4 g4 e5 fxe5 c5 Ba3 h5 Bb2 hxg4 Bd4 cxd4 e4 Ke7 h4 Ke6 a4 b5 c4 f5 c5 g5 h5 b3 h6 b4 a5 d6 c6 g3 c7 g2 h7 g4 a6 f4 a7 b2 Ne2 g1Q Na3 b1Q Qc1 f3 Kd1 b3 Rh5 g3 Nc4 b2 Rf5 g2 Na5 Ba6 c8B+ Qd7 Ra2 Qa1 Kc2 f2 Kb3 Nc6 Ka4 Rb8 a8B Na7+ Bc6 b1Q Ra3 Nf6 Nf4+ Kf7 Ne6 Kg6 Nd8 Be2 e6 Qf7 e7 Qba2 e8B Rb5 e5 Bg7 e6 d3 e7 Kh6 Be6 Qh5 B8d7 Rg8 e8B Rb1 B6f7 Bh8 Bb3 Rg5 Bc2 Bg7 Bf7 Bh8 Bfb3 Bg7 h8Q+ Kg6 Qb2 Rd1 Qf8 Bh8 Bb1 Bg7 Re5 Bh8 B3c2 Bg7 Re6 Kf5 Re7+ Kf4 Qc1 Kg3 Qf7 Kh2 Re5 Kh1 Rf5 Bf3 Be2 f1Q Rc5 Bg4 Rf5 Qgf2 Bef3 Bh8 Bfe4 Be2 Rd5 Ng4 Bg6 Bb2 Re5 Nf6 Rf5 Qd5 Ra2 Ba3 Rb2 Qda2 Rb4 Qhf3 Rh4+ Qh3 Rh7 Qh5 Rg7 Qad4+ Nc4 Qb6 Na5 Qa6
2QB1q2/2B3K1/2pN1npn/r4qQ1/1q2BpP1/B2qR3/q1bkN3/BrRb4 w - - 0 1 illegal: No proof kernel
kq1r2r1/1bQpb3/1pRNn3/1Q2N3/NnBNpr2/N3rPR1/1K2rq2/2B5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 e5 c4 h5 Kc2 b3+ Kb2 e4 a4 d3 g4 d2 c5 h3 c6 b6 f3 h4 f6 h2 c7 h3 g5 Ne7 g6 Nf5 g7 Na6 g8N Ng7 a5 Be7 Ra3 Ne6 Qc2 d1Q Ne2 Qd2 Nec3 Nb4 a6 Qf2 a7 Bb7 Nh6 Rg8 Nf5 Qb8 c8N Kd8 f7 Kc7 Rg1 h1R f8N h2 Bc4 Kc6 Qe2 Nc2 Rg3 Re1 Ng6 h1R Ncd6 Rh4 Na4 Rf4 Ne5+ Kc7 Qd3 Re3 Nd4 Rd8 Ra2 Rg8 Na3 Rd8 Kb1 b2 Qb3 Rg8 Qb5 Rd8 Ra1 Rg8 Ka2 Re2 Kb3 b1R+ Ka2 Rb3 Rb1 Rbe3 Kb2 Qf8 Ra1 Rd8 a8Q Qe8 Qaa5 Kb8 Qc5 Ng7 Qab5 Ka8 Qc7 Qf8 Bd2 Ne6 Rc1 Nb4 Rc3 Nc2 Bc1 Rc8 Ba2 Rb8 Rc6 Qd8 Qc8 Qc7 Qd8 Rc8 Bc4 Qb8 Qc7 Rcf8 Rg4 Rd8 Rg3 Nb4+
r4NBB/1nppBRBb/2q2nN1/1Q2q3/rp4Q1/b2r4/r4BPk/1R3K1r w - - 0 1 illegal: No possible last move
rKbn4/3bq3/3rQ2r/R1bnp2B/b1kNpQ1Q/2N2qpQ/3P2RB/3Q4 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 b5 h4 g3 a4 e6 a5 g2 a6 b3 f5 b4 f6 b2 a7 g4 f7 b3 h5 c6 h6 Nf6 h7 Qe7 Nc3 b1B Nge2 g1R Bb2 Bc2 Rh2 g3 Rg2 Rh1 Ra5 Rh6 Kc4 e5 Nd4 c5 Kb5 c4 Kb6 Nc6 Be2 Nd8 Bh5 Bd7 Ba1 b2 Ka6 Rg8 h8Q b1B Kb6 Rgg6 Qg8 Bg7 f8Q Bca4 Ka6 Ba2 Qe6+ Kc7 Qh3 Kd6 Qf7 Bf8 Qg8 Rb8 a8Q B2b3 Qb7 Ra8+ Kb6 Bc8 Qa6 Bad7 Qf7 Bba4 Bb2 Ng4 Qf4 Re6 Qb5 Ne3 Qbb3 Rb8+ Ka7 Ref6 Ndb5+ Kc5 d6 Nd5 Qa2 Kb4 Nd4 Re6 Nce2 c3 Ba1 c2 Nc3 Be8+ d7 c1Q Bb2 Rd6 Ba1 Nb6 Qae6 Nd5 Bb2 Qa1 Ba3+ Kc4 Bc5 Qa3 Bb6 Nb7 d8Q Bed7 Bc5 Qf6 Qde7 Nd8 Bb6 Qg7 Qeh4 Qe7 Bc5 Rb2 Ka8 Ra2 Kb8 Ra1 Nc2 Ra2 Bg1 Ra1 Nd4 Qb3+ Ncb5 Qf3 Nc3 Qg5 Bh2 Bac6 Qef7 Rdf6 Q3g4 Bc5 Ra2 Rd6 Qgh3 Qe7 Ra8 Ra6 Qfe6 Ba4 Ra7 Rac6 Ra5 Ra6 Qc2 Ra7 Qd1 Ra8+
bB1r2q1/5R2/1N2KQp1/Q1bpnn2/pRn2nR1/1B1P4/2rkb2q/5RNR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 Ke7 c4 Ke6 h4 Kf5 b6 Ke4 b7 d5 c5 a5 e3 f5 c6 a4 h5 b3 h6 g6 c7 b2 h7 g3+ Ke2 g2 Qe1 Ne7 Na3 b1N Nc4 Nd7 b8R Bb7 c8R Ne5 Rc7 Na3 Nb6 f3+ Kf2 f4 Bc4 Ra6 Bb3 Kd3 e4 Nf5 Rf7 Ba8 Bb2 Rg8 h8Q Nac4 Qf6 Bc5+ Bd4 Ra7 Rd1 Rc7 Rc1 Nd7 e5 Re8 e6 Nde5 e7 Rc6 Nh3 g1N Rb7 Rh8 e8R Ne2 Ng1 Qb8 Re6 Rd8 Re8 Qd6 Reh8 Qf8 R8h4 Qg8 Rg4 Rcc8 Nd7 Rc7 Rb4 Rcc8 Nb6 Rc6 Kf1 f2 Kg2 f1Q+ Kh2 Qf2+ Kh3 Nfg3 Kh4 f3 Kg5 Nf5 Be3 Qh2 Bf4 f2 Ra1 Nd7 Bb8 Nf4 Rd1 Nde5 Rb1 Kd4 d3 f1B Qd2 Be2 Rf1 Bd6 Qe1 Ke3 Qc3 Nb2 Qc5+ Kd2 Qa5 Rcc8 Qe6 Bf8 Kf6 Rc2 Qc6 Bc5 Qd6 Nh3 Ke6 Nbc4 Qf8 Nd7 Qg7 Nde5 Qf6 Nf4+
2Kr2R1/1n5n/4pq1b/2pq1RB1/1Q1b1bB1/3pn1B1/1P4N1/kbNB1rBQ w - - 0 1 illegal: No proof kernel
br1b1K2/4qQr1/P1p1N2q/p2BRR2/N3p3/1n1k2BN/2bN4/bQq1nN2 w - - 0 1 illegal: No proof kernel
1b5B/2qNk2q/Pp6/4p3/NrQ1B1b1/n1Rr1B1n/b1Q1R1pq/2b1KBB1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 f4 e5 h4 g5 a4 d5 c4 b6 c6 g3 h5 b3 c5 e3 a5 g2 h6 d4 a6 g4 h7 e2 c7 b2 c6 g3 f5 d3 f6 Nh6 f7+ Ke7 Nf3 g1Q Qd2 g2 Nd4 Bg4 c8B Qh2 c7 Nc6 Ne6 Nd4 Nc3 b1B Qa2 Nb5 Qc4 Na3 Be3 Ba2 Bb7 Rg8 c8B Qc7 Bd7 Rd8 h8B Rg6 Bf3 d2+ Kf2 d1Q Bdc6 Qd4 Na4 Qe4 Ke1 Rd3 Nec5 Rgd6 Bd5 Qh7 Bde4 R6d4 Qc2 Rb4 Rc1 Rb2 Nd7 Rb4 Kf2 e1B+ Ke2 Ke6 Bg1 Bd6 f8Q Nf7 Qc8 Ke7 Qg8 Ng5 Qgc4 Bd2 Kd1 Be3+ Ke1 Qf4 Rh3 Qh2 Rd1 Bc1 Rd2 Qb7 Re2 Bb8 Bc6 Qc7 Bfe4 Rd6 Rc3 Nh3 Bf3 Rd4 Bce4 Rd3
Rq1bbB1Q/2pr4/2KN1r1n/1Qb2B1P/4p3/BB2kp2/1nB1n2q/1R1n3N w - - 0 1 illegal: No proof kernel
1rN1bQqN/2p4p/1n1B2QR/3b1q1q/Bq1k3b/4nR1B/1P3K1p/3BB2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 g4 Ke6 d4 f5 g5 a5 g6 c3 e5 Kd5 g7 f3 b6 f4 e6 f2+ Ke2 a4 e7 a3 e8B c2 b7 h3 Bd2 c1Q Be1 a2 Nf3 Be6 Qd3 Qc4 Ba4 Qb4 Nh4 Nd7 b8Q Ne7 g8B Nf5 Nd2 Ne3 Ne4 Nb6 Ng6 Be7 Nd6 Bh4 Nc8 h2 Bh3 Qdf8 Rf1 Qf7 Rc1 a1Q Rc6 Qa2 Qa6 Ke4 d5 Kd4 d6 Bd5 d7 Qf5 Be6 Qh5+ Beg4 Rg8 d8B Qab3 Qba7 Rb8 Nh8 Rg6 Bf3 Rg1 Qa8 Rh1 Be7 Qa2 Bd6 Qab3 Rg1 Qa2 Rg3 f1B+ Kf2 Bb5 Bfd1 f3 Bf4 Qac4 Rh6 Be8 Bd6 Bdc6 Qb5 Qg8 Qg5 Bd5 Qg6 Bf6 Rg5 Be7 Rf5 Bf6 Kg3 f2 Rf3 f1Q Be2 Qf5 Bed1 Qfb5 Kf2 Bh4+ Qg3 Qa6 Ne7 Rb7 Qb8 Bec6 Qf8 Rb8 Nc8 Be8 Rf4+ Qe4 Rf5 Qe5 Rff6 Qd3 Rf7 Qh5 Rf3 Be7 Qg2 Qdf5 Qg6 Bh4+
b2B3r/1p5k/p2pPRr1/B1N1b1Kn/3q4/q1N1B3/2QBQbbR/1n2n2B w - - 0 1 illegal: Other
2B4r/1pq1Np1k/n1R5/3q1P1n/1b3N1q/1bKn1qpr/1N1R2Q1/B1N2QN1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 Qb3 hxg4 Qa4 Ra5 Qd1 Ra8 a4 d5 h4 c5 e4 g5 f4 c4 a5 c2 Kd2 g3 e6 d4 a6 g2 h5 g4 e5 g3 a7 d3 h6 Be7 h7 Kf8 Bb2 Kg7 Kc3 c1N Ra6 d2 Rc6 Qd5 Ba1 Nh6 Rh2 Bc5 e7 Rg8 e8Q Ng4 h8N Nd7 e6 Rf8 e7 Nd3 Ng6 Ngf6 f5 Kg8 Nf4 Nb8 Qd7 Bd6 e8N Na6 Nc7 Nh5 Qe2 d1Q Nd2 Be7 Nb3 Kh7 Nc1 Rh8 Qde6 Qa4 Q6e4 Be6 Q4f3 Rag8 a8N Rg4 Qff2 Rh4 Nb6 Rh3 Qd1 Qf3 Ncd5 Qa2 Na4 Bb4+ Kd4 c3 Ne7 c2 Nb2 Bd5 Be2 Bb3 Qdf1 Ndc5 Bc4 Nd3 Be6 Qa4 Nce2 c1Q Bc8 Qd1 Nc1 Qd2 Nge2 g1Q Rg2 Qh1 Ng1 Qa5 Q2e2 Qc7 Qe4 Qdd1 Rd2 Qg4 Qeg2 Qdf3 Ng8 Qh4 Ne7 Bd6 Kc3 Qd5 Qh2 Qhf3 Qhg2 Bb4#
2k1n1Qq/p1rN3n/4p2b/K1q1Br1Q/1PbQ2b1/pQ2QR2/1bN5/3Bq2R w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 d4 Kd7 Kd2 c5 Kc3 h5 f4 e6 g4 h3 d6 c4 Kb4 c3 d5 h2 f5 h4 f6 e3 g5 h3 g6 c2 f7 e2 g7 Qh4+ Ka5 e1Q+ b4 Na6 Bf4 c1B Qb3 Qef2 Be5 Nc7 Be2 Ba6 Na3 Rh5 Bd1 Rc8 Nf3 Bc4 Nc2 Ne8 Ra3 Ngf6 g8Q Bfh6 f8Q Nh7 Qf4 Rf5 Qfe3 Rc7 Qh8 Kc8 d7+ Kb7 d8Q Bb2 Qdf6 Kc8 d6 Qh5 Qf7 Qe1 Qhg8 Qg5 Qh5 Qgg1 Ra1 a3 Rb1 Qg5 Rf1 h1Q d7+ Kb7 d8Q h2 Qdd4 Kc8 Nh4 Qa8 Rf3 h1B Ng6 Qe7 Nf8 Qc5+ Ka4 Bg2 Nd7 Bh3 Ra1 Qf8 Ka5 Bg4 Qgg6 Qh8 Qg8 Qc6 Be2 Qh4 Rh1 Qe1 Bd1 Qc5+
Knq4R/pp1k2b1/Pq6/1nQb4/N1p2Bnr/r3RNB1/2b1nQ2/1QQ4Q w - - 0 1 legal: proof: c4 d5 f4 c5 h4 g5 b4 gxh4 e3 e5 bxc5 exf4 c6 Bh3 c5 Bc8 Bc4 dxc4 Kf2 f5 Kf3 h5 g4 h3 a4 h2 d4 h4 a5 h3 d5 Be6 a6 Be7 d6 Rh7 d7+ Kf8 e4 Rg7 g5 Qe8 d8B Qd7 c7 Ke8 c8Q Qd5 g6 Bf8 c6 Rd7 g7 Qd4 e5 Nh6 g8Q Nf7 c7 Nd6 Qh7 Qb6 Nc3 Bg7 Ra3 Nb5 Na4 Rd3+ Be3 Bf7 e6 Bg6 e7 Rc3 Qb1 Rb3 Kf2 f3 Kg3 f2 Kf4 f1N Nf3 Ng3 Qe6 Rd3 Qf6 Kd7 Ke5 Ne2 Bf4 Rc3 Bg3 f4 Kd5 Bc2 c8Q+ Ke8 Qc5 Kd7 Bc7 Rb3 Nd2 f3 Bcf4 f2 Nf3 f1N Qfb2 Rc3 Q2c1 Re3 Qh6 Rb3 Qf6 Ne3+ Ke5 Ng4+ Kd5 Rb4 Re3 Rb3 Qfd4 Ra3 Qdd1 Nc6 Qf1 Rh8 Qf2 Ke8 Ke6 Rh6+ Kd5 Rh4 Ke6 Nb8+ Kd5 Kf7 e8Q+ Kf6 Qh8 Kf5 Rg1 h1Q Rd1 Qg2 Rh1 h2 Qh6 Qh3 Qhc6 Nbc3+ Kd6+ Kf6 Rd1 h1B Rd2 Qb3 Kc7+ Kf7 Kc8 Qb6 Rd8 Nb5 Rh8 Bg2 Q6d5+ Kf6 Qdd1 Kf7 Qh1 Kf6 Ng5 Bd5 Nf3 Nd7 Ng1 Nh2 Rd3 Ke6 Nf3 Qf5 Rc3 Ng4 Rd3 Nde5 Kb8 Nc6+ Ka8 Nb8 Rb3 Qf8 Rd3 Kd7 Re3 Qc8
Bnb1B2n/B1RpK3/kqBQn3/4N1n1/p1r1r1n1/2N2nB1/Q1R3pP/4b3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 f5 Kc4 g5 Kd5 f3 b4 f4 e4 d3 c4 a4 c5 d2 b6 f2 b5 g3 c6 g4 e5 g2 e6 g3 e7 f3 Kd6 Nh6 c7 Nf7+ Kc5 Rh4 b7 Rc4+ Kd5 Nh8 Qb3 d1N Kd6 Nb2 b6 Nd3 Bf4 Nc5 Qa2 Ne6 Nc3 Ra5 Be2 f1N Rc1 f2 Nf3 g1N Ne5 g2 Rc2 Ng3 Bf3 f1N Bc6 Nf3 Rg1 Ne3 Rgc1 Ng4 Be3 Na6 b8B Re4 b7 Rc5 Ba7 Rcc4 b8Q Bh6 Bed4 Bd2 Bf2 Be1 Qb6 Nb8 Qa6 Nh5 Bg3 Nhf6 Ba8 Nh7 Qc6 Ba6 c8B Nhg5 Bcb7 Qa5 Qd5 Qb6+ Bc6 Bc8 Ng6 Kf7 e8B+ Kf6 Ne5 Kf5 Qd2 Kf6 Kd5 Ke7 Qf4 Kd8 Kd6 Ba6 Qd2 Kc8 Ke7 Kc7 Qd5 Bc8 Qd1 Qb5 Bg1 Qc5+ Qd6+ Kb6 Be3 Ka6 Bef2 Qb4 Ba7 Qb3 Bd5+ Ka5 Re2 Qc2 Nd1 Rcd4 Bdb7 Qb2 Rc7 Qb5 Nc3 Qb6 Rc2 Rc4 Bc6 Ka6
Rn1K1n2/5p1n/4n1Pp/2q1krb1/1Rp2N1R/1b2r1N1/r3Q2r/RBB2Q1R w - - 0 1 illegal: No possible last move
2r1bRr1/1PN1BpB1/1b3K2/RB5B/1Bp1rQn1/NQ1p4/5n2/kbbr3q w - - 0 1 illegal: No proof kernel
1Nkq1rb1/Qpr2RrB/3b2Q1/1B2K1Bn/2p5/1bp3RP/3Bb1Bn/1r4N1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Kd7 Ke3 g5 Kd4 f5 e4 c3 a4 f4 h3 b3 a5 g3 e6+ Ke8+ Ke5 c5 d4 g2 d5 g4 a6 b2 a7 f3 e7 Kd7 e8B+ Kc7 Beb5 f2 Qc2 g3 Nd2 b1B Ndf3 c4 Bd2 Be6 d6+ Kc8 Nd4 Nh6 Nc6 Rh7 Ra2 Bg8 d7+ Kc7 Ra1 Ba2 Bd3 Bb3 Rf1 Na6 Nb8 Nb4 Bc6 Nd5 Rh2 Nf4 Bd5 Qh4 d8B+ Kc8 Bg5 Nh5 Qb1 Bd1 Qb6 Rc7 Qg6 Be7 Nc6 Rb8 a8Q Bb3 Qa7 Ra8 Nb8 Ng4+ Kf5 Bf8 e5 Bd6 Rh1 Nh2 e6 Qd4 e7 Qh8 e8B Qf6+ Ke4 Qd8 Ra1 f1B Bb5 Be2 Rf1 Rc5 Rf7 Rc7 Nf3 g1R Bb1 Be7 Ke5 g2 Bbe4 Rc1 Re1 Bc5 Ng1 Rb1 Ref1 Be7 R1f3 Bb4 Rg3 Be7 Nf3 g1R Bd3 Rg2 Ng1 Bd6+ Kf5 Nf3 Qh6 Bbd1 Na6 Rd7 Rg4 Qb6 Bd8 Nh2 Bdc6 Rg3 Bg2 Bb3 Ke6 Qa5 Bh7 Qc7 Bf6 Re7+ Kd5 Kd8 Rg6 Rc8 Nb8 Qd7 Bh4 Rc7 Rg5 Re8 Qg7 Rf8 Rg6+ Be7+ Ke5 Kc8 Qh6 Qd8 Rg4 Rd3 Qf6 Rd4 Rg3 Rg4 Qg7 Rg6 Bhg5 Bc5 Qh6 Rg7 Qg6 Bd6+
2qB2RN/2BnB2b/2pBn3/pb3QNp/2bR2BP/1n2k3/1b2q1K1/2n1Q2r w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 f5 Qb3 a5 Nh3 f3 Qd1 f4 Ng1 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Kd7 Nh3 Ke7 Ng1 Ke8 Kf2 Kf7 e4 Kf6 b4 Ke5 h4 Kd4 e5 g5 e6 h5 b5 g4 b6 a3 e7 c6 e8Q a2 b7 c3 f6 c2 f7 Bg7 f8B Nf6 Qd7+ Nd5 Nh3 Rg8 Bca3 c1N Qf5 Nc7 Qe1 Nd7 b8B Ne6 Ng5 g3+ Kg1 f2+ Kg2 Ba6 Bc7 Bc4 Rg1 Qc8 Bfe7 Bf6 Be2 f1B+ Kh1 f3 Nc3 f2 Nd5 Be5 Bg4 Bfd3 Bad6 f1B Nf4 g2+ Kh2 Bg7 Ng6 Bf6 Rb1 a1N Rb4 Nab3 Nh8 Bb1 d3 Be2 Ra4 Ke3 d4 Re8 d5 Bb2 Kh3 Bb5 Rd4 B1d3 Rh1 g1Q Rh2 Qf1+ Rg2 Qf4 Rg1 Qe5 Kg2 Rf8 Bb4 Rf7 d6 Bbc4 Qh7 Rf3 Qf5 Rh3 Ba3 Rh1 Bc5 Nb8 d7 Bb1 d8B Nd7 B5d6 Bb5 Qff1 Bh7 Qf5 Qe4+ Bf3 Qc2 Bg4 Qd1 Qc3+ Bed3 Qe1+ Qe2+ Kg3 Bg6 Nh7 Ba6 Bf3 Bdc4 Rg2 Rf1 Kh3 Be8 Rg8 Bab5 Ng5 Bg6 Bg4 Bh7 Qb4 Qd3 Kg2 Rh1 Qe1+ Qe2+
1Rb5/K2r4/1p2nrB1/BpP5/b1Q1BpQ1/n1qN1nB1/pb3BR1/2Nkq3 w - - 0 1 illegal: No proof kernel
B1N2r1B/n1RPp3/qn1BQpp1/N3R3/b2r2B1/4p1Bq/Q2b1qn1/3K3k w - - 0 1 illegal: No proof kernel
qr1rKbN1/B1p1QR2/3q4/2Qr1R2/B2p3n/pb2P1bp/k2N3N/Nn5N w - - 0 1 illegal: No possible last move, all moves rejected
QRnRK1b1/pNBN4/1Pn4q/2p2p2/3R1Q1b/krqqp3/2r3Rr/4R2B w - - 0 1 illegal: No proof kernel
4BR1B/N1knQ2p/QNb1K2p/4b1bb/3BpBP1/R2p3n/1r4B1/1b1q2r1 w - - 0 1 illegal: No proof kernel
1kr1BqQ1/2p3N1/b3pr2/Bp4b1/nn1p1n1R/B2B4/P3n3/1NBQ1RnK w - - 0 1 illegal: No proof kernel
3Nnr2/Qp1p1NqQ/1nP4B/1k1K4/1B1R4/rB2p1b1/3B1pRb/1B1b2bb w - - 0 1 illegal: No proof kernel forced: wxLB
1N1k3B/n4n2/1N2QnpR/PN2N1b1/3p2r1/1K2pqb1/1bbpr2N/1R1Q1B2 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 bxa5 cxd4 Na3 h5 Nb1 hxg4 Kd2 b5 c4 d5 Kc2 e5 h4 b4 f4 g3 a4 e3 a6 e4 a5 b3+ Kb2 d3 a7 d4 f5 e2 c5 e1B f6 d2 h5 g6 c6 g2 h6 Bf5 h7 Nd7 c7 Bg3 c8Q Nh6 Nc3 Nf7 Nf3 g1B Nh2 Be3 Nb5 Bg5 Rb1 e3 Qc6 Bc2 Qb6 Rc8 a8N Rc5 Qe6+ Be7 Nb6 Qa8 Ka3 b2 Kb4 Rf8 h8N Qf3 Ka3 Kd8 Ka2 Nd6 f7 Nf6 Ka3 Rf5 Ka2 Re8 f8N Nf7 Nfd7 Ba3 Nb8 Rf4 Qe5 Rg4 Qe6 Bf5 Kb3 Rf8 Ra1 b1N Bb2 Bb4 Ba3 Bc3 Bd6 Bb2 Be5 Na3 Rb1 Nc2 Bf4 Nb4 Bd6 Nc6 Be5 Qg2 Nf3 Be4 Rh6 Na7 Nh2 Qf3 Qd5+ Nd7 Qe1 Nd6 Nc8 Qh1 Qe6 Rf2 Qd1 Re2 Nb6 Qg2 Qd5 Qf3 Nf7+ Ke7 Bg7 Nf6 Ne5 Nf7 Qe6+ Kd8 Bh8 Bc2+
2n2Q2/bknQ2B1/NpNrB2Q/1p2nrr1/5p2/1bPqQK2/7p/QRR1r3 w - - 0 1 legal: proof: f4 g5 h4 e5 hxg5 exf4 d4 c5 b4 cxd4 b5 a6 Bb2 axb5 Ba3 Ra7 Bc1 Ra8 Qd2 f3 Kf2 d5 e4 Kd7 g4 Kc7 a4 h5 e5 f5 e6 h4 c3 h3 g6 d3 e7 d4 e8Q b6 a5 h2 g5 Rh5 a6 Qd6 g7 Be6 a7 Kb7 g6 Nc6 Ne2 Rd8 Bh3 Bb3 Na3 Nge7 g8Q Ne5 g7 Nc8 Rb1 Be7 Qe1 d2 Qh8 d1R g8Q d3 Nd4 d2 Nc6 Qd3 Nc2 Bd6 Qgf8 Bb8 N2b4 Rd6 Kg3 f2+ Kf4 Kc7 a8Q f1R+ Qf2 Rg1 Qa1 Kb7 Na6 Ba7 Bg4 Rdf1 Qd8 d1N Qd7+ Ka8 Qhg7 Ne3 Qf3 Rf2 Qh7 Re2 Bd2 Rgg2 Rhc1 Re1 Qg6 Rf2 Kg3 Nd5 Bh6 Rff1 Bg7 Rg5 Qe3 Nc7 Qh6 Kb7 Kg2 Rh5 Bh3 f4 Be6 Rf5 Bd5 Rf3 Be6 Rh3 Kf2 Rhh5 Kg2 Rhg5+ Kf2 Nc4 Kf3 Ne5+
8/k2rqrRp/pp1Q4/7p/nP1NbK1b/1R1BN3/bn1NN3/BrNQ3r w - - 0 1 legal: proof: f4 e5 c4 exf4 a4 d5 cxd5 g6 h4 Nc6 h5 gxh5 a5 Nb4 a6 Nxa6 Qc2 Nb4 Qd1 Na2 Kf2 Kd7 Kf3 c5 b4 Kc7 d4 Kb8 g4 f5 e4 b6 e5 c4 e6 c3 g5 c2 d6 a6 d5 Kb7 g6 Be7 d7 Ra7 d6 Bh4 e7 Ka8 e8N Rb7 g7 Ka7 Ne2 Nh6 g8Q Ng4 Nc7 Qe7 d8N Ne3 d7 Nc3 Rg1 Nc4 Rg7 Na4 Bb2 c1R Qe6 Rf8 Ra3 Rf7 Nd2 Rb1 Ba1 Ncb2 Nd5 Rc7 Re3 Bb7 Qd6 Ba8 Rb3 Rb7 Kg2 f3+ Kh3 f4 Ne3 f2 Nc1 f3 Ne6 Rc7 d8N Be4 Nf4 Rd7 Bd3 f1R Nfe2 f2 Ne6 Re1 Kh2 f1B N6d4 Bfg2 Qe5 Bd5 Qd6 Bge4 Kh3 Bg5 Kh2 Rh1+ Kg3 Bf6 Kf4 Bc4 Rc3 Ba2 Rb3 Bh4+
NR2Qr2/1pbnK1rn/p1P5/2NqB3/Q5pB/Bq1R3q/1q1pk3/1B1b2B1 w - - 0 1 illegal: No proof kernel
1b5R/BrR1p2r/2pBp3/5r2/QN1pP1qb/Q6n/B1K2Nb1/k1Bb1b1B w - - 0 1 illegal: No proof kernel
4r3/B4pnr/pB3n2/1N3kbP/2K1R1bQ/p3BB1p/p4RBb/3nqN1Q w - - 0 1 illegal: No proof kernel
Q1B4r/nNp1BK2/BR1B3r/2pk2r1/BP1p2pq/3N3p/1R2Qn2/2nbb3 w - - 0 1 illegal: No proof kernel
1K2k1rn/1B1Rp3/2pRq2n/6p1/2PR3b/2Q2pNN/rBp1Rq1Q/1Rq1b3 w - - 0 1 illegal: No proof kernel
2r1qR2/2pB2BB/2P1p3/Qbr2R2/Bn2K2p/N1qQ2Np/p3B2k/q3n1b1 w - - 0 1 legal: proof: d4 b5 h4 g5 a4 bxa4 d5 gxh4 Be3 e6 dxe6 Ke7 Bd2 Kd6 e7 Kc5 Bc1 Kc6 e8B Ne7 e4 Ng6 e5 Ne7 e6 Ng8 e7 Kc5 Qg4 d6 Qe6 fxe6 Kd2 Kd4 f4 Ke4 c4 h5 g4 a5 b4 a3 g5 h3 c5 d5 g6 a4 b5 h4 f5 Kf4 Kd3+ Kg3 g7 a2 f6 d4 f7 a3 b6 Rh6 b7 Rg6 Be2 Nd7 b8Q Rg5 Qb6 Ba6+ Ke4 d3 Qa5 d2 Bb2 Ne5 Ba4 d1Q e8B Q1d2 c6 Bc5 f8Q Bb5 Qd6 Rc8 Bd7 Qc3 Qd3+ Nf3 Rh2 Qe7 Rf2 Qe8 Rf1 Ne7 g8B Bd4 Bh7 Rc5 Rf2 Be3 Rf1 Ne1 Rf5 Nd5 Rf8 Qc1 Bg7 Qd2 Bf3 Qc2 Ne2+ Kh2 Ng3 Bg1 Be2 Qb2 Nd2 Qc3 Nc4 Nb4 Rf5 Nf3 Rf1 a1Q Rf8 a2 Na3 Ne1 R1f2+ Ng2 R2f5 Ne1
1k1N4/1p3Rr1/rbB1p2N/Bp4Bb/B5pb/2qQ3K/3Pn2p/RBqn1Q2 w - - 0 1 illegal: No possible last move, all moves rejected
bBq2Q2/Rp1p1rQ1/R1Np1rKp/B2Q4/n4q2/1Q4nP/4k1pQ/1n1N2b1 w - - 0 1 illegal: Other
3rN1NQ/p2bbKnQ/2BR3r/B1p2ppN/1P3pq1/k2N4/2n1Rb2/4Nb2 w - - 0 1 illegal: No proof kernel
B1B1B2Q/qKn3R1/1nQ5/k6q/p1pB3N/N1ppp3/P1r1RBqb/3b1b2 w - - 0 1 illegal: No possible last move
3QR1B1/2Np2bK/pp1q1B2/2nB1pR1/5rbn/1PQpN3/b3Bb2/2n3kB w - - 0 1 illegal: No proof kernel
kBrR1nN1/B3n2r/1pp2q1q/1K2qQ1p/2RB1bB1/pp1p2NP/5B2/6Q1 w - - 0 1 illegal: No possible last move
1q2b1q1/6QR/1q3Q2/k4B2/qRnr1B1N/3P4/4nnQB/1K1bNr1Q w - - 0 1 legal: proof: e4 f5 exf5 d5 a4 b5 axb5 d4 Ra5 d3 cxd3 Kf7 Ra1 Ke8 b4 c5 h4 cxb4 h5 a6 h6 axb5 Ra3 gxh6 Ra6 h5 Ra2 Bg7 Ra1 Bc3 dxc3 h4 Kd2 Kd7 Kc2 Kc7 g4 Kb6 f4 e5 f6 h5 f5 h3 f7 h2 f8Q e4 f6 e3 g5 e2 c4 e1Q g6 b3+ Kb2 b4 g7 h4 f7 h3 Qc2 Nc6 Ra5 Qeh4 Be2 Nh6 g8Q Ng4 Qg6 Bd7 Qf5 Nce5 Ra4 Nf2 Nd2 Be8 Qg7 Rf8 Kb1 b2 c5+ Kb5 Qfh7 Nc4 c6 Ra7 Bd1 Rd7 c7 Rd4 c8Q Qdg5 Qf6 Qg8 Ngf3 Qf4 Qhg7 Qb8 Ka2 b1N Ne1 b3+ Ka1 Qb6 Bg4 Nc3 Bf5 Ne2 Rb4+ Ka5 Kb1 b2 Ndf3 Qb8 Qcc6 Qb6 Rg1 h1Q Bf4 h2 Nh4 Qe4 Rg3 h1B Rh3 Bf3 Rh2 Qe6 Qb7 Bg4 Qh1 Qd7 Rh3 Qa4 Bh2 Ng3 Qd2 Bd1 Qdg5 Ne2 Qgg2 Bb5 Bf4 Rc8 f8B Be8 Be7 Rc7 Bf8 Rf7 B8d6 Rc7 Bh2 Bb3 Nhf3 Qc5 Rh7 Rc6 Rb8 Ne5 Nh4 Qa7 Rb6 Qb8 Nef3 Rc2 Rb7 Nc4 Bdf4 Rd2 Rb6 Rd1+ Bc1 Rg1 Ne1 Rf1 Bcf4 Bd1 Rb7 Qc2+ Ka2 Nd6+ Ka3 b1Q Rb2 Qc6 Rb3 Qbc2 Rb4 Q2a4+ Kb2 Qcb6 Kb1 Nc4
2n1b1b1/1RBr4/4N1K1/4qrbQ/1P2QQn1/3qNB1r/1r2Bk2/RQ2n3 w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 b5 cxd5 b4 a3 Kd7 axb4 Ke8 h4 a5 h5 a4 h6 gxh6 Nf3 h5 Ng1 h4 d4 c5 b3 axb3 Rh3 cxd4 Rh2 Qa5 Rh1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 g4 h5 f4 d3 d6 b2 d7 d2 Qa4 d1R Qa7 h3 Qd4 h4 Ne2 h2 Na3 b1R Nc2 h3 Ne3 Ra5 Bg2 Qc7 d8Q+ Be7 Bf3 Nh6 Qe8 Rb2 Qh5 Be6 Qd5 Rdd2 Nd4 Bg8 Ne6 Nd7 Qd3 Rb5 Qb1 Nb6 Ra7 Qd7 Rb7 Nc8 Re1 h1Q Rf1 Bd8 g5+ Ke7 g6 Kf6 g7 h2 Rd1 Qe1 Be2 h1B+ Bf3 Bf7 g8B Ng4 Bh7 Be8 Bg6 Ke7 f6+ Kd6 f7 Bg5 Kf5 Rh6 Be2 Bd5 f8Q+ Kc6 Bf3 e4 Qe7 Qe2 Rg1 Qc7 Rh1 Qd3 Bf7 Rh8 Kg6 Qe5 f5 Ra5 f6 Rd1 Nf5 e3 Bd2 e2 Bf4 e1N Be2 Qed4 Bc7 Qe5 Rf1 Ba2 Rg1 Kd5 Rf1 Ke4 Ne3 Bb5 Be8 Bc6 f7 Rd5 f8Q Rd7 Ng7 Bg8 Ne6 Ba4 Qeh7 Rf7 Bb5 Rf5 Bc4 Rdd2 Bb3 Bc6 Bbd1 Be8+ Qff7 Qc2 Rh1 Rd7 Bf3+ Kd3 Bde2+ Kd2 Qh4 Qd3 Q7h5 Nf2 Qe4 Ng4 Qh2 Rh5 Qhf4 Rh3 Qa2 Ng2 Ra1 Ne1 Qb1 Nc2 Nd1+ Ke1 Ne3+ Kf2 Nd8 Na3 Ne6 Rg3 Kh5 Nc2 Qg6 Ne1 Qf7 Re7 Qg6 Ref7 Qh7 Rh3+ Kg6 Nd6 Qh6 Nc8 Qh5 Rd7#
BRn1B1q1/1bQ1P2Q/kqB5/1N1n1q1r/3q2N1/K2b2b1/2R2R2/1b3Br1 w - - 0 1 legal: proof: b4 g5 c4 a5 bxa5 c5 h4 b5 hxg5 e5 f4 exf4 Bb2 b4 Bc3 b3 d4 cxd4 axb3 dxc3 b4 Ba6 b5 Bc8 g4 h5 e4 d5 a6 Kd7 c5 Kc7 e5 f5 e6 c2 Kd2 c1Q+ Kd3 f3 g6 f2 g5 f4 g7 d4 a7 Kb7 b6 f3 g6 h4 Qc2 h3 Kc4 h2 Kb3 d3 Nh3 d2 Na3 d1Q Ra2 Qcg5 Nb5 Nd7 Ka3 Bd6 e7 Ngf6 g8Q Ka6 g7 Bg3 c6 Qd4 b7 Rh5 b8R Bb7 c7 Nb6 c8B Nfd5 Bd7 Nc8 Be8 Q8b6 Qc7 Qgg4 Rg1 h1B Qh7 Qge6 Rg2 Qg8 Rh2 Bg2 Rc2 Bh1 Bd3 f1Q Nf2 Qh3 Bc6 Qf5 Ng4 f2 Bf1 Be4 Rg2 Qgf8 g8B Qd8 Bd3 f1B Bf7 Qg8 Bc4 Bfd3 Bfe8 Nd6 Rcf2 Bb1 Bf1 Bed3 Rd8 Rb8 a8B Nc8 Rc2 Na7 Rgf2 Rc8 Qf4 Rc7 Rb8 Nc8 Qd6 Rd7 Qc7 Rd6 Nf6 Re6 Ng4 Re1 Bg2 Reh1 Bf1 Rg1
4KR1q/2Qr4/Q1r2q1r/r1B1n3/6kp/B1NN4/P1Bn4/b2bRRrR w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 d4 e5 dxe6 c5 exf5 cxd4 h3 g5 h4 gxh4 Kd2 Ke7 Kd3 Kf6 Ke4 b5 f4 h5 g4 b3 e7 b4 e8Q d3 Ne2 d2 Qd7 h3 Kd5 h2 Ba3 b2 Nc1 b3 Bd3 Rh6 Qf1 d1R Nc3 Bg7 Kd6 b1R Qe2 Rg1 Bc2 b2 Qa6 Nc6 Nd3 Rbd1 Rb1 Rd2 Re1 b1R Rf1 Qb6 Qc7 Rc1 Bc5 Bb7 Kd7 Ra7 Re1 Ne5+ Ke8 Bf3 Rf1 Bd1 Ba3 Ne7 Bc5 Nf3 Re1 Bh8 g5+ Kg7 g6 Kf6 g7 Ng6 g8R Nge5 Rg2 h4 Rf2 Qd6 Qab6 Ra5 Qa6 Qb6 Rff1 Bg7 Nb4 Rd7 Nd3 Nd2 Ba3 Bh8 Bc5 Kg7 f6+ Kg6 f7 Kf5 f8R+ Kg4 f5 Qc6 f6 Qd6 f7 Qf6 Ba4 Rc2 Ne4 Rc4 Ba3 Rc6 Bc2 Rg2 Rhg1 h1Q Nc3 Qh3 Rh1 Rg1 Rg8+ Bg7 f8B Qg2 Bac5 Qd5 Rh8 Qg8 Ba3 Qh7 Rg8 Qh8 Bfc5 Qf3 Rf8 Qf2 Bb1 Qf6 Bc2 Ng6 Be7 Qe6 Nd5 Ba1 Nc3 Qef6 Bec5 Ne5
1N1N3B/6n1/6Q1/qk2r1BP/N1Rq1Bqb/Bq2Qr2/Rnp1K1q1/1b6 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 cxd5 f5 e4 b5 exf5 bxa4 Ba6 a3 b5 a4 Qxa4 a2 Qd1 Bd7 Bc8 Bxc8 f4 Kd7 h4 e5 d4 c5 d6 g5 h5 e4 d5 g3 b6 c4 f6 g4 f7 g2 b7 e3 f5 e2 f6 g3 Qd4 c3 Nd2 Na6 b8B Ne7 Nb3 Nf5 Qe3 Ng7 Nd4 Qb6 Rh4 Be7 Ba3 Nb4 Nc6 Re8 Rc4 Bd8 Bc7 Ra5 Bb8 Re4 Bc7 Rf4 Bb8 Rf3 f8Q Nf5 f7 Bh4 Qfh6 Ng7 Qg6 c2 Rc3 Nd3+ Kd2 Ba6 Bc7 Bc4 Nb8+ Kc8 d7+ Kb7 d8B Qb1 Nc6 Ka6 d6 Rg5 d7 Kb5 Bf4 Re5 Nb8 Bd5 Nh3 g1Q Bdg5 g2 d8N Qf2 Rc8 g1Q Rc7 Qgg3 Ng1 Qg4 Rc6 Qfg2 f8B Ne6 Bg7 Qb2 Rf1 a1Q Bh8 Ba2 Rc4 Qb3 Rb1 Ng7 Rb2 Bb1 Ra2 Nf2 Ke1 Nd1+ Kd2 Qb4+ Kd3 e1Q Ne2 Qbb2 Nbc6 Qa5 Nc3+ Ka6 Na4 Kb5 Nb8 Qb3+ Rc3 Q2h3 Ke2 Qab2 Rc7 Qd4 Rc8 Nb2 Rc4 Qhg2#
7k/NBr1n1r1/Q2P1q2/2RR1n1r/1BK3Qq/7b/1p1B1Bn1/1r2NRr1 w - - 0 1 legal: proof: e4 a5 b4 c5 c4 f5 exf5 g5 d4 a4 h4 gxh4 bxc5 d5 a3 dxc4 d5 Bg7 Bd2 Bb2 Bg5 Bxa3 Bh6 Bc1 Bxc1 a3 Ke2 Kf8 f4 Kg7 g4 h5 c6 e5 g5 b5 g6 c3 Kd3 b4 c7 b3 Qe1 a2 Nf3 c2 Qa5 e4+ Kc4 h3 Qa6 e3 Bd2 c1R+ Nc3 h2 Ne1 b2 Bg2 h4 Rf1 Rh5 f6+ Kh8 f5 h1R f7 h3 f8B h2 f6 e2 f7 Bh3 c8R Rg1 Bb4 h1Q f8B Ne7 Rc5 Nbc6 d6 Ra7 Bfh6 Nd4 Bb7 Qf8 Bhe3 Qf6 Bf2 Ndf5 Rd5 Rc2 Rc1 a1R g7+ Kg8 Kb3 Rb1 Nb5 Rc7 Rcc5 Qh2 Nc2 e1N Kc4 Ng2 Ne1 Ra8 Na7 Rf8 Qc6 Rf7 Qa6 Kh7 Qa2 Qg3 Qa6 Qgh4+ Kb5 Kg6 g8Q+ Rg7 Qc8 Kh7 Qd7 Qg3 Kc4 Kh8 Qe6 Qgg5 Qe4 Qg3 Qg4 Qgh4
2k4N/1n1pBP2/1nrqR1K1/B1B3Q1/2q4Q/1bB5/1r3qqN/2qN2Rn w - - 0 1 legal: proof: e4 f5 exf5 c5 h4 g5 a4 gxh4 d4 cxd4 a5 b6 axb6 a6 c4 Nh6 c5 Ng8 b4 a5 Bc4 a4 Ba2 Bg7 Bb3 axb3 b7 Be5 Ra6 Bc7 Ra1 Bb6 cxb6 Kf7 Kf1 Kf8 Ke1 Ke8 Ke2 e5 Kd3 h5 Ke4 h3 f4 h4 g4 b2 f6 h2 Kf5 e4 b5 h3 g5 d3 f7+ Ke7 f8N e3 g6 d2 g7 e2 Nc3 b1N Qa4 e1Q Nd1 Qc7 Kg6 Kd8 f5 Ra6 f6 Nc6 b8B Na3 f7 Qf2 b7 Nh6 g8Q Na5+ b6 Qc4 Ba7 Ng4 b8B Bb7 Be5 Bd5 Nf3 Kc8 Rg1 h1Q Nh2 Qhg2 Bc3 Nb7 B1b2 Rh5 Ba5 Re5 Qb4 Re2 Bc3 Be6 Qe7 Bd5 Qh4 Be6 Nb2 d1Q Re1 Qd6 Nd1 Ra2 Re2 Bd5+ Re6 Rb2 Rb1 Qcc6 Qg7 Bb3 Qgh6 Qa4 Q6g5 Nc4 Nf3 h2 Ne3 h1Q Kh7 Qd5 Nh2 Qff5+ Ng6 Nc5 Re1 Qff1 Nh8 Nf2 Kg6 Qhg1 Rb1 Nh1 Re1 Qa1 Nd1 Qfe2 Rf1 Q1f2 Rg1 Qc6 Bab4 Qc1 b7+ Kc7 b8B+ Kc8 Bc7 Nb7 Bba5 Qd6 Bc5 Rc6 Bd8 Nb6 Be7 Qc4
Kq1N1B1B/2q4Q/1R3r1R/4qqP1/p1r3r1/1B3Q1n/1kNBrN2/5n1b w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 e4 Kd7 Ke2 Kd6 Ke3 Kc5 d4+ Kb4 b3 h5 b6 a5 e5 f5 d6 c5 b7 h4 d5 c4 Kd4 a4 d7 g2 d6 h3 Kd5 f4 e6 f3 e7 g3 e8N h2 Qd4 f2 Qb2 c3 Bc4 f1R Nc7 c2 Qf6 Nh6 Qf3 Nc6 b8Q+ Bb7 Nh3 g1Q Na3 g2 Ne6 Qc8 d8B Nf5 d7 Rh4 Rb1 Ng3 Qc7 Qf2 Bf6 g1R d8B Ne7+ Kd6 Ra7 Bh8 Ng6 Qh7 Nf4 Be7 Qe1 Be3 c1Q Nf2 Nh3 Bf8 Rd4+ Bd5 Kc3 b4 Ba8 b5 Re7 b6 Re8 Ng7 Rc4 b7 Qc2 b8Q Q2f5 Rb6 Bb7 Ra6 Kb2 Bd2 Re2 Bg8 Qc1 Ne6+ Qc3 Nd8 Rg2 Rg1 h1Q Nc2 Qh2 Rh1 Rgg1 Be6 Qce5+ Ke7 Ra1 Rd6 Ra3 Rb6+ Rb3 Ke8 Nf1 Ke7 Rgg4 Ke8 Qc5 Kd7 Bc6+ Kc8 Qhf4 Qd6 Ba8+ Kb8 Qc8+ Ka7 Be4 Qb8 Qg3 Rb7 Rb6 Ka8 Qgf4 Nd4 Qec7 Nc2+ Q4e5 Bg8 Rcb4 Bb3 Rc4 Rh2 Rf6 Rh1 Ng1 Rh6 Nh3 Qe3 Bg2 Qf3 Bh1 Rb6 Q8xb8+
8/B1R2bN1/1bnbb1pk/2nb3P/1RQ5/RB2n1rK/Q1b3B1/1R1b1N2 w - - 0 1 legal: proof: b4 a5 g4 b5 f4 c5 a4 e5 axb5 exf4 d4 cxd4 b6 h5 b5 Ra6 bxa6 hxg4 Ba3 Qc7 Bc1 Qb7 axb7 Rh6 Ra4 Rh7 Ra1 Rh8 Kf2 d5 Kg2 f5 h4 Kf7 e4 Kg6 c4 a4 h5+ Kh6 e5 g3 c5 a3 e6 d3 c6 a2 c7 d2 e7 f3+ Kh3 f4+ Kh4 g2 e8Q f2 Ba6 f1B Qd8 f3 Qb3 d4 Qd6+ Be6 c8B f2 Qdb4 d3 Nf3 g1B Bc4 Ne7 Nd4 Nbc6 b8R Bg2 Rb7 f1B Rc7 Bgd5 b7 Rg8 b8R Nf5+ Kg4 Bfg2 Bb7 Bd6 Ba3 Bgf3+ Kh3 d1B Nd2 Bc2 Nf1 d2 Q3a4 d1B Bb3 Bf7 Qc4 Bde6 Bc5 Bfd5 Ba7 Bf2 Rb1 a1N Qa2 Be3 Rg1 Bf2 Ba8 Ne3+ Rg4 Bg1 Rb4 Bf2 Ra4 Bg1 Ra3 Bf2 Ba4 Nb3 Bb7 Nc5 Bb3 Rb8 Ba8 Rb4 Bb7 g6 Nf5+ Kh7 Ng7 Kh6 Qe2 Rf4 Qb5 Be1 Qd3 Ba5 Qc4 Bb6 Qe2 Rf5 Rb4 Rf4+ Qg4 Nf5 Qe2 Rg4 Qc4 Ne3 Rc1 Ne7 Qe4 Bc6 Qc4 Bcf3 Be4 Nc6 Rb1 Bh1 Bf5 Bhd5 Be4 Nb7 Bh1 Nc5 Bg2 Rg3+
2b4K/1Nknb1rb/R3p2Q/3B1RQ1/p1Nr1PN1/Q4qBn/3r2Q1/1n6 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 d5 cxd5 f5 exf5 a4 b5 Qd6 a3 Qxa3 Qc2 Qd6 Qc6+ Qd7 Qxb7 Qd8 b6 Ra6 Qa8 Rxa8 Ke2 Kd7 Kf3 h5 Kf4 c5 Kg5 c4 Kg6 c3 d4 h3 g4 h2 d6 h4 f6 c2 g5 h3 b7 Rh4 d5 Qa5 f7 Rd4 Kh7 Rf4 g6 Rf6 g7 Qc3 Na3 Qe5 Nc4 Rf4 Bg2 Qg5 Kh8 Ra6 Nf3 Ra7 Nfe5+ Kd8 d7 Kc7 d8N Qf6 Ng4 Nd7 d6+ Kb8 f3 Rd4 Bf4 c1R Bg3 Rc2 Raf1 Rcd2 Rhg1 h1B Rf2 Ne5 d7 h2 Rb1 e6 Rb6 Ne7 Ra6 Qf5 g8Q Kc7 Qg6 Qh5+ Qh6 Nd5 Rf1 Be7 f8Q Nc3 Rf2 Bg5 Qa3 Qh3 f4 Be7 Re2 Nb1 Bd5 Bg2 Re4 h1N Re1 Nf3 Re5 Nf2 Rf5 Qh1 Nf7 Ne5 Nfd6 Nh3 b8Q+ Kd8 Qb5 Be4 Qbb2 Kc7 Nb7 Qf3 d8Q+ Kb8 Qb5 Nd7 Qg8 Kc7 Qbb2 Bd3 Qgg5 Be4 Qc1 Bc2 Qf1 Be4 Qg2 Bc2 Rf7 Bh7 Rf5 Nc5 Nce5 Bf6+ Qhg7+ Kb8 Nd6 Rf7 Nec4 Be7 Q5h6 Kc7 Qgg5 Rg7 Nb7 Nd7
r2n2k1/R1Q1B2r/2B5/B1nR3p/B1n3pQ/P2rq3/5b1K/1RNb1N1q w - - 0 1 legal: proof: d4 a5 c4 c5 e4 f5 exf5 d5 b4 axb4 cxd5 Qc7 Nf3 Qb6 Ng1 Qd8 h4 cxd4 Qb3 g5 Qf3 g4 Qd1 Qb6 g3 Qf6 Kd2 b5 Bc4 Ra3 Ke1 Rxg3 Bf1 Qg5 hxg5 Rg2 f4 Kf7 d6 e5 d7 h5 d8R b3 f6 d3 f5 b4 Rd5 e4 Nd2 e3 Ne2 b2 Qc2 b1N Qc7+ Ne7 g6+ Kg8 g7 b3 Rg1 Rh2 Bg2 b2 Nf1 Na6 Bd2 Rh7 Nc1 e2 Kf2 Bd7 Kg3 Na3 Ba5 d2 Be4 d1Q Bc2 b1Q Ba4 Rh3+ Kg2 Rb3 Kh2 Qbd3 Rb1 Nc4 a3 Rb8 Rb7 e1R Ra7 Qe3 Bc6 Kf7 Ba4 Ra8 g8B+ Ke8 Be6 Nc6 f7+ Ke7 Rh1 Nc5 Rg1 Bg7 f8B+ Kf6 Bf7 Nd8 Be8 Be6 Bed7 Kf7 f6 Kg8 Be7 Qdf3 Be8 Rd1 Bec6 Rd3 Rh1 Bh6 Rg1 Bg5 Rh1 Bh4 f7+ Kh8 Rg1 Bf2 f8Q+ Bg8 Qf5 Be6 Qf6+ Kg8 Qh4 Bf5 Ng3 Be4 Re1 Qd1 Nf1 Bf3 Nb3 Qa1 Rb1 Bd1 Nc1 Qad4 Qf6 Qde4 Qh4 Qh1+
8/1B1Nrq1q/5pnP/1b2Qr2/1R1b1QBk/K7/N2Npb2/nnNB2R1 w - - 0 1 legal: proof: c4 d5 cxd5 h5 g4 hxg4 b4 b5 a4 Ba6 axb5 Bc8 e4 e5 Bb2 a6 Bd4 a5 f4 exf4 Be3 fxe3 bxa5 Rh4 Qe2 Rh6 Qd1 Rh8 h4 Ke7 d4 Kf6 d6 g5 h5 c5 b6 g3 a6 c4 d5 c3 h6 g4 b7 Kg5 e5 g2 a7 f6 d7 g3 e6 c2 e7 c1B e8B Bc5 d6 Bb4+ Qd2 Bc3 Kd1 Qe7 Kc2 Nc6 Kb3 Bd4 b8N Qh7 d8N Nge7 d7 Ng6 Rh4 Nb4 Be2 Nc2 Bd1 Ba6 Ndc6 Bb5 Ne2 g1Q d8Q g2 Bd7 Re8 Nb4 Re7 Qc7 Qf2 Bh3 g1N Na2 Qg2 Nd7 Qb7 Qda5 Bd2 Qh2 Be1 Nec1 Bf2 Bhg4 Ne2 Nd2 Nc3 Kb2 Rc8 a8B e2 Qa4 Qa7 Bb7 Rc5 Qc7 Rf5 Qe5 Qf7 Rb1 Na1 Ka3 Qh7 Rb4 Qf7 Rh1 Qh7 Rg1 Kh4 Ba8 Qc7 Bb7 Qf7 Qa7 Qh7 Qb8 Qc4 Qf4 Qcf7 Qbe5 Nb1+
4R2b/1p1kBQ2/2R3Q1/1n1q3r/N2P4/1Bp1QR1n/n1Q1Nr1b/K1n4n w - - 0 1 legal: proof: e4 d5 b4 f5 exf5 g5 b5 d4 c3 a6 cxd4 axb5 Bc4 b4 Be2 Qd6 Bf1 Qd8 a4 bxa3 h4 gxh4 d3 c5 Qf3 c4 Qd1 c3 Ra2 Be6 Ra1 Bc4 dxc4 Bh6 Bf4 Bg7 Bc1 Bf8 g4 e5 f4 h5 c5 h3 c6 e4 c7 a2 c8Q h2 f6 e3 f7+ Ke7 f5 h4 f6+ Kd6 g5 h3 g6 e2 g7 Be7 f8R Ra4 f7 Na6 Re8 Bf8 Na3 Nc7 Qc2 Ne7 g8Q Bg7 f8Q Rh5 Qff7 Nc6 Bg5 Nb4 Be7+ Kc6 Rd1 a1N Nc4 Ra2 Nb2 Bh8 Na4 Nb3 Rd3 Nc1 Rf3 Qd5 Qb8 Nb5 Qe5 Rb2 Qe3 Nba2 Qgg6+ Kc7 Rf6 Kd7 Rc6 Qe6 Bg2 Qb3 Bd5 Qc4 Kf2 e1B+ Kf3 Bg3 Ke4 Qb3 Ne2 Bf4 Re1 h1N Rf1 h2 Rf3 Bfe5 Bc4 Nf2+ Kd5 Nh3 Ke4 Qb4 Bb3 h1N Kd5 Qd6+ Kc4 Qe6+ Kc5 Nf4 Qb1 Rh2 Ng1 Rbf2 Qbc2 Nb4 Ne2 Qf5 Kc4 Rh5 Ba2 Ncd3 Kb3 Nh3 Rcc8 Bh2 Rc6 Nd6 Ka3 Qd5 Bc4 Nb5+ Kb3 Na6 Ka2 Nc1+ Ka1 Nb4 Bb3 Nba2
R1n1Nb2/b4QrR/6p1/1K1Q3R/QBP2Q2/rb1b1nr1/B1k1p2q/6N1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b5 a4 bxa4 b5 a3 Nxa3 a4 Nb1 a3 Qf3 Ra6 Qa8 Rxa8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 f4 e5 f6 d6 b6 d5+ Kb5 a2 f5 d3 h6 g6 f7 d2 h7 d1R b7 d4 h5 d3 h6 d2 f6 Bh3 Nc3+ Ke3 Ne4 Qc7 Ba3 Bf5 Nd6 e4 Rh5 Ne7 Bb4 Rg8 h8R Nbc6 b8Q Ra3 h7 Rg7 Ne8 Qh2 Qd8 Nc8 Bc4 Ne5 Qd5 Nf3 c3 Rc1 Bb3 d1B c4 Bd6 f8Q Rc3 Qff7 Bf8 Rb1 a1B Ba2 Bb2 Rg8 Rd3 h8Q Bd4 Ra1 Ba7 Qh6+ Ng5 Rh8 Bb3 Qfd7 Rc3 f7 Rd3 Qh7 Nf3 Qg8 Rc3 R8h7 Rd3 Q7c6 Rc3 Qa6 Rd3 Qa4 Rc3 Qc6 Kd2 Qe6 Kc2 Qd5 Bd6 f8Q e3 Qf6 e2 Qgf7 Be4 Qf4 Bf8 Rd1 Re3 Rd4 Bd3 Re4 Nd2 Re6 Rf3 Ra6 Rg3 Ra5 Nf3 Ra6 Bf2 Ra8 Ba7
1q1n2B1/1P1kp3/Q2NNr1p/1Rn1BR2/Nq5B/8/Kn1Q1n2/1q2Bb1r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 h4 g5 d4 gxh4 Qd3 a5 Qd2 c5 Qe2 Bg7 Qd1 c4 b4 axb4 Bd3 Be5 Be2 Bd6 Bf1 Bc5 dxc5 Qd6 Rh2 Qd7 Rh1 Qd8 Kd2 b3 Kc3 e3 Kb2 h6 f4 h3 g4 h2 d6 e2 g5 e1N c6 Bd7 c7 Bf5 c8N Bh3 g6 Ra5 b6 Bd7 b7 Bb5 d7+ Kf8 f5 Nf3 g7+ Kf7 f6 Ke6 f7 Ra4 f8B Ra3 Ne2 Ne5 Qd2 Nbc6 Nd6 Nf6 Nbc3 Ne4 Na4 Nc5 Rb1 Qb8 d8B Ra1 g8Q+ Kd7 Ba5 Nd8 Nd4 Ng4 Qg7 Nf2 Qg6 Rg8 Qf6 Rg6 Bg7 Ba6 Rg1 h1Q Ne6 Qh4 Rg5 Qg4 Rf5 Qf4 Qe5 Rf6 Qee2 Qg4 Bg2 Bb5 Bd5 Qh4 Kc3 b2 Kc2 c3 Qed3 Bc6 Qa6 Bb5 Bb3 Bf1 Ba2 Nce4 Kb3 c2 Ka3 Nc5 Bh8 Rg6 Bf6 Qc4 Bh4 Rf6 Bc3 Qf4 Be5 Qc4 Qe1 Qg4 Bd2 c1N Qee2 Qe4 Be1 N1d3 Qd2 Qd4 Rc1 b1Q Rc4 Qd5 Rb4 Nb2 Rb5 Qd4 Bhg3 Qc2 Bh4 Rc1 Bb3 Qb4+ Ka2 Qd1 Ng7 Be2 Bg8 Rb1 Ne6 Qc1 Qf4 Qc2 B1c3 Rh1 Be1 Bf1 Qd2 Qb1+
K3R2q/2qB2b1/4PN1N/B2q1n2/1rqpB3/p3R3/2qQB1Qn/kn4N1 w - - 0 1 legal: proof: b4 a5 h4 b5 f4 c5 a4 e5 axb5 exf4 d4 cxd4 b6 g5 b5 gxh4 b7 Ba3 b6 Nc6 b8N Ba6 Nxa6 Rc8 b7 Na7 Nb8 Rc3 Nxc3 Bd6 Nb1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kb4 Kd5 f5 c4 h5 e4 f3 c5 f4 g5 a4 c6 d3 c7 h3 c8B h4 e5 f2 g6 a3 e6 d2 g7 f3 Bb2 h2 Bb5 f1N Qe2 Kb3 Qg2 f2 Nc3 h3 Nd1 Rh4 Be2 Qc7 Ne3 Nh6 g8B Rb4 Bh7 Bg7 Be4 Nb5 Ng4 Nf5 Re1 Ka2 Nh6 d1Q+ Bd4 d6 Nd7 Qdc2 Bb6 Kb2 b8Q Ka2 Nf3 Kb2 Rg1 h1Q Nf6 Nh2 Bd7 f1Q Qd8 Ka2 Ba5 Kb2 Bd1 Ka1 Re3 Qfe2 Qa8 Qf1 Qd2 Qhg2 Qb7 Qg5 Be2 Qh5 Nf7 Qh8 Nh6 Qb3+ Bc4 Bf8 Bb1 Ng4 Qe1 h2 Qd2 h1Q Qa8 Nh2 Rg8 Bg7 Re8 Qc1 Bd3 Qhf1 Ng1 Qcc2 Qb7 Qb8 Kc6 d5 Kb6 d4 Ka6 Qe5 Qbg2 Nc3 Ka7 Nb1 Be4 Qc7+ Ka8 Qfd3 Ba6 Qdc3 Bab5 Q3c5 Bf1 Qbc4 Be2 Q5d5+
NkN1R2Q/3n1RQ1/bqRK1b2/1B2B1pn/BPpq2p1/3b3q/1q6/7B w - - 0 1 legal: proof: f4 b5 g4 h5 c4 hxg4 c5 e5 a3 exf4 c6 b4 axb4 dxc6 Ra6 c5 Ra1 c4 d4 g5 b3 a5 Ra4 c5 Nd2 c3 Bb2 c4 Ra1 a4 Bc1 a3 Nb1 Ra4 bxa4 Rh6 Nh3 Rc6 Ng1 Rc5 dxc5 Ke7 Qb3 Kd7 Qd1+ Ke8 Kf2 f5 e4 f3 Ke3 a2 h4 f2 a5 c2 h5 Nd7 Kd4 f4 Kd5 f3 h6 Qc7 a6 Kd8 a7 Qb8 a8B Kc7 e5 Be7 h7 Bd6 h8Q Qb7+ c6 Kb8 e6 Qa6 e7 Qb7 e8B Nc5 Rh6 Nd7 Bg2 f1B Nd2 f2 Ne4 Bc5 Nh3 Qb6 c7+ Ka7 Bf4 c1Q Bc6 Qa6 Qdd4 Qc2 Ba4 Ne5 Beb5 Qe2 Nd6 Qa5 Bh1 Ba6 c8R Qb6 Re8 Nd7 Qdg7 Bd4 Nc8+ Ka8 Rc1 a1Q Rc6 Ngf6+ Kd6 Kb8 Bh2 Qc2 Nf4 Nh5 Nd5 Bd3 Nc7 f1Q Na8 Qh3 Rf1 Qcg2 Rf7 Bf6 Bf4 Qgg1 Bg3 Qb2 Be5 Qgd4+
3b1r2/KNBN3p/1p1q2n1/1p6/B4bB1/Pnk4B/1bpRQ3/Q2Rr1Q1 w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 a6 b4 Kd7 h4 Ke8 b5 axb5 g4 gxh4 d6 c5 d3 c4 Qa4 c3 Qf4 Be6 Qg3 Bc4 dxc4 hxg3 Ke2 Kd7 Kd3 Kc6 Kd4 e6 f4 g2 f6 c2 g5 Nh6 g6 Ng4 f7 Nh6 g7 Qh4 g8B Na6 d7 Nc5 d8Q Ra5 a3 Ra4 Rh2 Ra7 Qf6 Ne4 c5 Qh3 f5 Qg3 Nc3 Ra6 Na4 Ra5 Bf4 Nd2 Rd1 Ra7 Bc7 Bd6 f8Q Nf7 Q8g7 Qg5 Nf3 g1B+ Rf2 Qh6 Bh3 Bgh2 Qg1 Bdf4 Qfg7 Bg5 f6 Ne5 f7 Bhf4 f8Q Bd8 Qfe7 Ng6 Bf7 Rf8 Bg4 Nc4 Rfd2 Na5 Qe5 Ra8 Q7f6 Rb8 Qe2 b6 Ne5+ Kb7 Nd7 Kc6 Ke4 Nb3 Qa1 e5 Bc4 Re8 Bg8 Qf8 B8e6 Qd6 Bc4 Kb7 c6+ Ka6 Bce6 Ka5 Nac5 Ra8 Nb7+ Ka4 Bb8 Re7 c7 Re8 c8B Re7 Kf5 e4 Bc7 e3 Ke4 Re8 Qd3 e2 Bh3 e1B Qe2 Qb4+ Kd5 Beh4 Kc6 Bhf6 Beg4 Bb2 Be6 Nc1 Beg4 Kb3 Be6+ Kc3 Bb3 Qd4 Ba4 Qd3 Nd6 Re4 Kb7 Nb3 Bg4 Rb8+ Ka7 Re8 Nb7 Qd6 Bh3 Rf8 Ne5 Re8 Bcg4 Rc8 Nd7 Rf8 Bb8 Rc4 Bc7 Re4 Qef2 Re1 Qff1 Rf5 Qe2 Rf8
4Bb1N/b3P1pb/1Q1K1k1N/1p1Bq3/3n1ppN/5qB1/1N2R1qQ/4Rn2 w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 b5 a4 h5 f4 d5 cxd5 hxg4 f5 Rh3 Nxh3 e6 Ng1 exf5 Bb2 Ra6 Ba3 Rc6 Bb2 Rc1 Bxc1 f4 Kf2 Ke7 e4 f5 d4 c5 h4 f3 Ke3 f2 Kf4 b3 Ke5 b2 a5 c4 a6 c3 h5 c2 h6 Nf6 h7 Kf7 h8N+ Ke7 d6+ Kd7 a7 Bb7 a8B Qc8 d5 Qc7 Ra2 Ba6 Bg2 f1Q Nf3 Kd8 Na3 b1Q Qd2 Be7 Nh4 Qb4 Nc4 Qc8 d7 Qb3 Bc6 Bf8 Nb2 Ke7 d8N Qg1 Ndf7 Nh5 Be8 Bb7 Nh6 Ng3 Qf4 Qgc5 Re1 Nf1 Qh2 Q8c6 Bf4 c1B Bg3 f4 Bh1 Qf3 Bg2 Qce3 d6+ Kd8 d7 Ke7 Bh1 Qc2 Bg2 Nc6+ Kd5 Kf6 d8Q+ Be7 Qc7 Bf8 Qb6 Bc8 Bh1 Bf5 Bg2 Bh7 Bh1 Kg5 Ke6 Qcd2 e5 Nd4+ Kd7 Qdf2 e6 Q2g2 e7 Qee2 Kd6 Kf6 Na4 Qee4 Rae2 Be3 Nb2 Qe5+ Kd7+ Ne6 Rd2 Qh3 Qc7 Ba7 Rde2 Qd3+ Bd5 Qg2 Qb6 Qdf3 Kc6 Qh5 Kd6 Nd4 Bb3 Qg5 Bd5 Qe5+
3nr3/Q2rB1b1/1rb2N2/1Q6/BR1B1Pr1/2K2R2/qNRn2n1/kb1qr2R w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 g4 Kf7 f4 e5 d4 c5 Kd2 h5 d6 Ke6 b6 Kd5 g5 e3+ Kd3 b3 d7 h3 b7 b2 g6 e4+ Kc2 e2 g7 Kc4 d5 h4 d6 h2 Ra3 h3 Ra7 e3 Ra3 Rh6 Rd3 e1R Qf3 e2 Rd2 Qa5 d8R Nc6 b8Q Bd7 Re8 Nf6 g8R Ne4 Qf2 Qa2 Nc3 Nd8 Qa7 Bc6 d7 Bg7 Rd3 Nd2 Rf3 Rh4 Rgf8 Rg4 Ne4 Rb8 Nf6 Rb6 Ree3 Kb4 Qa6 c4 Rc3 Rd1 Qb7 e1R Qa7 Re8 Qe2 Re1 Qd3 R1e7 Ne2 b1B+ Kd1 Rf7 Rc2 c3 Bb2 Kb3 Qd5+ Nc4 Qd3 Ne3+ Kc1 Ng2 Rh8 Qa5 Qb5+ Ka2 Rh5 Qa3 Rd5 Qa4 Rd4 Qa6 Rb4 Rfe7 Rd2 c2 Bd4 Qa5 Nc3+ Ka1 Be2 Qa2 Bd1 Rf7 Re2 Rfe7 Kd2 c1N+ Bc2 Nb3+ Kd3 Nd2 Ref2 Nf7 d8B Rd7 Be7 Nd8 Na4+ Qb2 Re1 h1R Rc1 Re1 Rf1 h2 Rh1 Nf1 Kc4 Be4 Bb3 Bc6 Rcc3 Qa3 Nb2 Qa2 Rc2 Nd2+ Kc3 Be4 Ba4 Bc6 Rhf1 h1Q Rg1 Qh5 Rh1 Qhd5 Re3 Qf3 Rd3 Qe2 Rf3 Qd1
1R1Q1N2/1bB4q/R3PrQ1/1KN1r3/3b2nQ/qQb2q2/1n1N1rB1/q3k2q w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 d4 Kd7 Kd2 Kd6 Kd3 f5 Kc4 h5 e4 c5 g4 h3 b6 h2 b7 h4 g5 b3 g6 b2 g7 f3 Bg2 h3 Bf1 f2 Qc2 f4 Ne2 f3 Ng1 Rh5 Bg5 Nd7 b8N Qe7 Bf4+ Re5 Qb3 Ra6 Bc1 Ngf6 g8Q Ng4 Be3 Bg7 Qa3 Bb7 Qc8 Nb6+ Kb5 Nc4 Bg2 f1R Bf4 f2 Nc3 b1Q+ Qb3 Nb2 Nf3 c4 Na4 c3 Nd7 c2 Qg8 c1B Nac5 Bd2 Nf8 Bc3 Nd2 Ra2 Rg1 h1Q Bh2 Bf6 Qg6 Qd1 Bg3 h2 Bf4 Ra6 Ra2 Rc6 Ra6 Qa1 Bg3 Qh7 Bf4 Qa3 Bg3 Ra1 Rb1 Ra2 Bf4 Qd1 Bg3 h1Q Bh2 Qf3 Bf4 Kc7 d6+ Kc8 d7+ Kc7 d5 f1Q+ Nc4 Qc1 Nd2 Kd6 d8Q+ Qd7 Qde8 Qdh7 Qh6 Bd4 Qh4 Qcc3 Rd1 Qc1 Qg6 Qa1 Rb1 Na4 Nf1 Rf2 Nd2 Nb2 Bh2 Kc7 Bg3 Bh8 Bf4 Rf6 d6+ Kd8 d7 Re7 e5 Kc7 Qh2 Ba8 Qf5 Rff7 Ra4 Nd1 Ka5 Kc6 d8Q Be3 Qc4 Bg7 Rb8 Bb7 Qfh5 Nb2 Qb3 Re6 Nc4 Rfe7 Nfd7 Kd5 Q2h4 Kd4 Kb5 Bd2 Ra7 Bc3 Nd2 Rc6 Bg3 Ke3 Nf8 Ke2 Qg6 Ke1 Ra6 Rce6 Bf4 Rf7 Bg3 Rf5 Bf4 Rd6 Bh2 Rd5 e6 Bgd4 Be5 Rf6 Bc7 Re5
1B6/RrrN2nP/1Q1q1n1r/1r2b1nQ/2R4R/BN1k4/1rb1R1K1/2q1B1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 Kd6 d4 g5 e4 f5 b6 c5 b5 a5 b7 c4 h5 f4 b6 g4 h6 f3 Bd2 c3 Qa4 c2 Qc4 f2+ Ke2 f1Q+ Ke3 c1R Qc3 a4 Nf3 g1N Rh4 a3 Qa5 g2 Be1 a2 Nbd2 g3 Ne5 Ne7 Nd7 Ra7 Nb3 Bg7 h7 Be5 Qb5 Nh3 Qe2 g1R Qh5 Qc4 Kf3 Rh1 Kg2 Rc3 Rc1 a1R Rc2 Ng5 Rc1 Na6 b8R Ra5 b7 Nc5 Ra8 Nce6 b8B+ Qcc7 Rc2 Rb7 Ra7 Ng8 Rc1 Rc6 Rc3 Ng7 Rc4 Ke7 d6+ Ke6 Rc2 Rab5 Rc4 Bf6 e5 Kd5 e6 Be5 e7 Nf6 e8R Rg8 Rh2 Ke4 d5+ Kd3 Rhh4 Rf8 Re7 Rf7 Re8 Rcb6 Re7 Bc3 Re2 Be5 Nf8 Bf5 d7 Qe7 d8B Qed6 Be7 Qcc5 Nd7 Qc8 Rcf4 Qc1 Rc4 Rh3 Na5 Rb2 Nb3 Rb5 Bf8 Qb6 Ba3 Qd6 Nf8 Rfc7 Nd7 Qe7 d6 Rh1 Nb6 Qf8 d7 Qd6 d8Q Rh3 Kg1 g2 Nd7 Rc8 Qb6 Rcc7 Rhf4 Be4 Qg4 Rh6 Qh5 Bf5 Rh4 Bg4 Rec2 Bd1 Rf2 Bc2 Re2 N5e6 Kf2 g1Q+ Kf3 Qgd4 Kg2 Ng5 Rh3+ Qde3 Rhh4 Qg1+
2q1Q1r1/1P2N1B1/2n1b1BB/1kb1rq2/1q1q2n1/R1n1QK1N/1b2NR2/B2q4 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 g4 h5 e4 f5 d4 c5 b6 h3 d6 Kc6 e5 f3 b7 c4 e6 h4 d5+ Kb5 g5 f4 g6 h2 e7 b3 e8N h3 d7 b2 d6 Nc6 g7 Rh5 Ra7 Re5 Nf6 Nh6 Bd3 Ng4+ Kf1 f2 Bg6 c3 g8Q c2 Nd5 Rb8 Be3 c1B Ke2 f1N Ne7 Nd2 Ra1 Ne4 Qd4 Nc3+ Kf3 Qb6 d8B Be6 Qe4 Qd4 d7 Rc8 Ra3 Rb8 Nd5 Bc5 Bf6 Rc8 d8B Rb8 Nd2 b1Q Ne7 Qbb4 Qe8 Bb2 Ne2 Rc8 Rg1 h1Q+ Rg2 h2 Bg7 Qd1 Bc7 h1Q Bb8 Qh2 Rf2 Qh8 Qd3+ Qbc4 Ne4 Qg8 Qd2 Qb4 Ng5 Rd8 Nh3 Qh8 Kg2 f3+ Kg3 Qf8 Beh6 Qh8 Qe3 Rc8 Rh2 f2 Kf3 f1Q+ Rf2 Rd8 Qf7 Rg8 Qe8 Qd7 Bd6 Qdd4 Bc7 Qfd1 Bd8 Qc8 Bc7 Qh7 Bd6 Rg5 Bde5 Rh5 Bef6 Re5 Rg2 Rh5 Bd3+ Qdc4 Rh2 Ne4 Qf2 Bc1 Bd4 Re5 Ba1 Bb2 Qe3 Nc3 Rf2 Qg6 Be4 Qcd4 Bb1 Qg5 Bg6 Qf5+
3bn1kr/1b1P2B1/3rqR1R/2QR4/5b1N/1Nr3QQ/1nr1Bq2/nqR2K2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 c5 d4 f5 g4 Kf7 b6 h5 d6 c4 d5 h3 g5 h2 b7 f3 e5 f4 d7 f2+ Ke2 c3 d6 h4 Bg2 f1N Qd4 f3+ Kf2 c2 Qd1 b3 Bf4 c1B Bd2 b2 Nh3 Qe8 d8R Ne3 Bf1 Ra6 Nf4 h3 Qb3+ Qe6 Be2 Nc4 Bc3 Nc6 b8Q Bb7 Kf1 f2 Qc7+ Be7 Ng2 Nb4 Nd2 b1Q Nh4 Nf6 Qc5 Ne8 g6+ Kg8 g7 Nc2 Qba3 Rc6 Nb3 Nb2 d7 Ra6 Rc8 Bf6 Rc6 Bd8 Rd6 Rc6 Rd5 Rd6 Bd4 Qf5 e6 Bf4+ Bd1 Qg6 e7 Qe6 Be5 Qc1 Rb1 Na1 Bf6 Qc2 Be2 Qh7 Rc1 Qb1 Rg1 h1R Bd4 Rh2 Rg6 Rg2 Rh6 h2 Be5 Kf7 g8R Rg3 Rgg6 Rc3 Bg7 Kg8 Rf6 Rc2 Qe3 Rc3 Qh3 Rc2 Qc5 h1R+ Kg2 Rh2+ Kf1 Rc3 Bf8 Nc7 e8Q Rg2 Qe7 Ne8 Bg7 Rc2 Qcc3 Rg3 Qf3 Rdc6 Qc5 Rd6 Qd3 Rf3 Kg2 Re3 Qg6 Rec3 Qgg3 f1Q+ Kh2 Qf3 Kg1 Qfe3+ Kf1 Qf2+
4bRNr/2n1P2B/1R2nr1N/kr2r2r/1r2Q1Kn/5RBQ/3B2qb/6Bb w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 c5 d4 Kc7 g4 Kb6 e4 h5 d6 f5 d5 b3 g5 h3 g6 h4 e5 c4 d7 c3 e6 h2 g7 h3 d6 b2 Bd3 c2 Qe1 Ra5 Qh4 Nh6 g8R Qg5 Rg6 Na6 d8B+ Nc7 d7 Bd6 Nd2 b1R e7 Rb4 Ne2 Ba6 Rf1 h1B+ Kf2 h2 Ne4 f3 Nf6 f4 Nd4 Nf5 Qh3 Nh4 Bd2 c1N Ra3 Nb3 Nf5 Nc5 Ng8 Ne6 Nfh6 Bb7 Rf6 Bc6 Bh7 Be5 Rb3 Qg7 Rf8 Qg2+ Ke1 f2+ Ke2 f3+ Ke3 Ka7 b6+ Ka6 b7 Rab5 b8B Ka5 Rfb1 f1R Rd3 f2 Ke2 Bb7 Rdf3 Rc1 Ba7 f1R+ Bf2 Qg6 Bg3 Bc6 R3f6 Rcc5 Ng4 Nf5 Qh6 Bhd5 Bgf4 h1R Re8 Rb6 Ref8 Ne8 Bfe3 Rh4 Bc7 Bh1 d8Q Bh2 Qd3 Qg5 Qg6 Rh5 Bg1 Nh4 N4h6 Qg2+ Rf2 Bd7 Qge4 Ba4 Bcf4 Rce5 Qh3 N8c7 Bg3 Be8 Ke3 Rb7 R2f6 Rf4 Rf1 Rb8 Rf3 Rbb5 Rg6 Ng7 Rc6 Rg4 Rb6 Rg6 Kf4 Rf6+ Kg4 Nge6
n5R1/RQQ2BrR/N1b1b2n/bq3r2/b5BQ/kP1nQ1N1/8/b4rnK w - - 0 1 legal: proof: c4 a5 f4 e5 h4 exf4 h5 d5 cxd5 a4 h6 a3 b3 gxh6 Bb2 axb2 a4 b5 axb5 h5 Ra2 h4 Ra3 Bb7 Ra1 Bc8 Kf2 Ke7 g4 Kd6 Kg2 Kc5 e4 Kb4 d4 c5 b6 f5 e5 h5 b7 h3+ Kh2 h4 e6 c4 d6 c3 d7 f3 g5 c2 e7 c1B e8Q f2 d5 f4 g6 f3 g7 Qa5 d8R Nd7 b8Q+ Nb6 d6 Ra7 d7 Rh5 Qg3 Bd2 Qc7 Na8 Na3 b1N Qee2 Nc3 Qa6 Ne2 Qcc1 Qb5 Qb2 Rf5 Rb1 Bc3 Qa2 Bb2 Qc1 Rb7 Re8 Bc3 d8Q Bb2 Re7 Ba1 Bg2 Be6 Rc7 Bc5 Qac2 Ra7 Rb2 Bb6 Qe3 Ba5 Rf7 Re7 Qcc6 Rc7 Rd2 Re7 Rd7 Nh6 g8B f1B Rh7 f2 Rc7 Qa4 Bf3 Bg2 Qcd7 f1R Ra7 Qb5 Bh5 Qd3 Nb5 Bc6 Nc7 Ba4 Qc4+ Ka3 Na6 Qd5 Qb7 Qb5 Qdc7 Ref7 Nf3 Rd7 Rg1 Rdf7 Rgg7 Ng1 Ng5 Re7 Kh1 h2 Kg2 h1N Ne4 Nf2 Ng3 h3+ Kh2 Rd7 Qh4 Nd3 Bg4 Re7 Rf7 Rd7 Rf8 Rg7 Rb8 Nb2 Bf7 Nd3 Kh1 h2 Kg2 h1B+ Kh2 Bc6 Rg8 Bcd7 Kh1 Bc6+
1KB2q1B/1b2N3/b2n2RQ/b4qR1/1RPN2q1/2q1n3/2q1r1Qr/qB2kB2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 a4 c5 d4 cxd4 f4 b5 axb5 axb4 Rh3 exf4 Rh2 Qa5 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 g4 h5 b6 d5 g6 f5 b7 d4 g7 h4 g5 f3 c3 b3 g6 b2 Ra4+ Bb4 Ra7 h3 Be3 h2 Be2 f2 Nf3 f1B Ng5 f4 Ra5 f3 Bf4 f2 Ne6 Nh6 g8Q Na6 b8R Qf8 g7 Bb7 Qc1 Nc5 Rg1 h1Q Rg6 Qh3 Qe3 Qff5+ Kd6 Ng4 e5 Ne4+ Kc7 Nd6 Bh2 Qhf3 Qh6 Ne3 Bg3 Q5g4 Bh4 Kb3 Bf6 d2 Rc5 d3 Nd4+ Ka4 e6 d1Q e7 d2 Bd3 Qc2 Rcg5 d1Q Bf5 Ra5 Bc8 Re5 e8B+ Bb5 c4 f1Q Bc6 Re6 Be4 B5a6 Bd3 Bc3 Be2 Kb4 Bd3 Be1 Nc3 b1Q Be2 Q1f2 Bf1 Q3g3 Be5 Qf8 Bf6 Qdf3 Be5 Q3f5 Nd5+ Kc5 Ne7 Kb4 Bf6 Kc3 Be5 Kd2 Bf6 Ba8 Rb4 Qa1 Kb8 B8b7 Be5 Kd1 Bf6 Re5 Qd5 Bc3 g8B Ke1 Qg2 Rh7 Bh8 Q3h3 Ra4 Ba5 Rb4 Qhg3 Bd5 Re6 Be4 Qge5 Qg7 Rh2 Qh6 Qef6 Nb5 Qfc3 Nd4 Nd1 Bed3 Re2 Be4 Ne3 Bd3 Qca4 Bb1 Qac2
7R/N3PnBB/1B1R3b/Q7/1b2q2r/nk2n1BQ/q2n1r1K/nn2qNQ1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 e4 Ke7 b4 Kd6 c4 a5 g5 h5 b6 f5 b7 a4 b5 Kc5 b6 Kb4 c5 d5 c6 a3 g6 f4 e5 a2 c7 d3 c8Q d4 g7 f3 e6 f2+ Kd2 h4 e7 h3 Nf3 g1Q Qe2 g2 Na3 h2 Qh3 Nc6 b8B Nh6 g8Q Qd5 b7 Kb3 Bg3 Na7 b8B Nf7 Qh4 Nb5 Qh3 Bh6+ Kd1 d2 Bbc7 Rf8 Qe1 Rh7 Ke2 d1N B7f4 Ne3 Bc7 Qe4 Bb6 d3+ Kd2 Qc4 Bb2 Qe4 Rb1 a1N Rd1 Qa4 Be2 Qa7 Bg7 f1N+ Kc1 Qf2 Qa5 Nd2 Bf1 g1B Bg2 Nc3 Nb5 Qe1 Bf1 Qa6 Na7 Nec4 Bg2 Na3 Bf1 Bc5 Bg2 Nde4+ Nd2+ Ka2 Bf3 Nb1 Bg4 Bb4 Bf5 Rh8 Bh7 Qc4+ Bc3 Qd5 Qgg4 Qb3 Bg7 Qe6 Qgg5 Qb3 Nf1 Ned2 Qe3 Qd5 Qg1 Qee4 Re1 Kb3 Kd1 Qdc4 Re3 Qc2+ Ke1 Qa2 Kf2 Bf4 Bf5 Rh4 Rf3 Bh6 Kg2 Qe1 Bh7 Qe4 Qf2 Qe1 Rf6 Qe4+ Qf3 Qe1 Rd6 Qe4 Rg1 h1Q+ Kf2 Qg6 Ne3 Rc4 Qhf5 Nd8 Bg8 Bf4 Qc6 Ne4+ Kf1 d2 Qcc5 d1N Qfc8 Qe6 Qd7 Qh7 Rh1 Ned2+ Kg1 Qe5 Nf1 Qe1 Qf2 Ne3 Rh3 Qhc2 Rh8 Bh6 Bh7 Rh4 Qh3 Qe4 Kh2 Rf3 Qg2 Nf7 Qg1 Rf2+
1q2k3/1R1nP2B/3Rr1nN/R1RQ1r2/1K1brB2/2N1b3/2rn2Q1/n3rb1B w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 c5 d4 f5 Kd2 h5 g4 c4 g5 b3 Kc3 b2 b6 h3 e5 h2 d6 h4 b7 f3 g6 f2 e6 f4 g7 h3 d5 f3 Bf4 Rh6 Nd2 b1N+ Kb4 c3 Nc4 c2 Kc5 c1B Ne2 Ra4 Ra2 Na3 Bg2 f1R Ne3 f2 Ng4 Re4 Qc2 Ne7 g8B Bg7 Bh7 Ng6 e7 Bd4+ Kb4 Bce3 Nc3 Nd7 b8R Ba6 Rb7 Qb8 Rg1 Re1 Bh1 f1N Qg2 Nd2 Ra1 Rh5 Nh6 Rf5 Rf1 Re2 Rfc1 Re1 Rc2 Bf1 Raa2 Nb5 Ra5 Na3 Nb1 Rc1 Rcc5 Re6 Nc3 Nc2+ Ka4 Na1 Kb4 Nde5 Ng4 Rc2 d7+ Kf7 d8Q Nd7 d6 Re4 Qb6 Ke8 Qc6 Re6 Qgd5 Re4 Nh6 Re6 Be4 h1R Bg2 Rh2 Bh1 Re2 Qg2 h2 Qcd5 Re1 Bg3 Nf6 Qe2 Bg1 Bf4 Bgf2 Qee4 Ree5 Bg2 Re6 Qf3 R1e4 Qe2 h1R Bf3 Rg1 Bh1 Bfe3 Qg2 Bd3 Ng8 Re1 d7+ Kf7 d8R Bf1 Rd6 Nd7 Nh6+ Ke8
b4Qn1/k3nB2/Pb6/1B2q2N/1n2rNRn/Qb3KQ1/nb1qQ1r1/5BR1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 f4 e5 hxg5 axb4 c4 exf4 Ba3 bxa3 cxd5 Qf6 Qc2 Qe7 Qd1 Qd8 Kf2 Kd7 g4 c5 d4 Kc7 e4 Kb6 g6 f5 d6 h5 e5 a2 a5+ Ka7 d5 b5 g5 h4 d7 b4 g7 b3 d6 f3 g6 b2 a6 c4 e6 f4 e7 c3 e8Q h3 Qc2 h2 Qd2 c2 Qe7 c1N Qe6 Rh4 Qe4 Nc6 Qdd5 Nb4 Nc3 b1N Nce2 Nd2 Rb1 a1B Qg5 Nca2 Re1 Bb2 Qg3 Qa5 d8Q Qe5 d7 Bc5+ Qe3 Bb6 Qe8 Bb7 d8Q Bd5 Qb5 Bb3 Qf8 Re8 Qa4 Rg4 Nh3 Rg5 Rg1 h1B Rg2 Re7 Qa3 Re6 Kg1 f2+ Kh2 f3 Nef4 Re8 Nh5 Re7 Bb5 f1Q N3f4 f2 Qe2 Nf3+ Kh3 Nh4 Ra1 Rf5 Kg4 Qe1 Rd1 f1N Rg1 Bc6 Rd4 Ba8 Re4 Re6 Rc4 Ne7 g8B Nd2 g7 Ne4 Bf7 Qd2 g8B Rff6 Nd3 Rf2 Ndf4 Rg2 Bh7 Nec3 Bd3 Ncd5 Rd4 Ng8 Bdc4 Ng6 Kf3 Re8 Qe4 Nde7 Bf1 Rd8 Rc4 Rd5 Qe2 Rd4+ Rc6 Re4 Rc5 Qed4 Rg5 Qe5 Rg4 Nh4+
1k3K2/Nn1R1PB1/1Q4B1/q1Nbqq2/4r1nr/Qr6/BR3q2/1rr1QBb1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 e5 d4 exd4 e5 f6 Qc2 f5 Qe4 fxe4 Kd2 Kd7 g4 a5 b4 h5 f4 c5 d6 e3+ Kd3 e2 Ke4 e1R+ Kd5 c4 e6+ Ke8 f5 c3 f6 d3 b6 a4 b5 a3 g5 h3 e7 Kd7 b7 a2 g6 d2 g7 d1Q+ Nd2 c2 b6 h4 Ne2 h2 Nd4 h3 N2b3 Re3 Bb2 c1R Rb1 Qc2 Nb5 a1Q Na7 Nh6 g8B Na6 b8Q Nc5 b7 Qda5 e8B+ Kd8 d7 Re4 Kc6 Qf2 Qd6 Rb8 Bg6 Ng4 Qd2 Rh7 Qe1 Rh4 Rg1 Bg7 Kd6 h1R Rg3 h2 Rd3 Bh8 Be6 Qf5 f7 Bd4 Rd2 Be3 Bg7 Bg1 Bd5 Qd4 Rbb2 Qdf2 Bdc4 Ra8 b8Q Nb7+ Kc6 Qae5 Qd6 Rb8 Qa3 Rb1 Nc5 Rc1 Kb5 Kc7 Ba2 Nd6+ Ka5 Rb3 d8Q+ Kb8 Qb6+ Nb7+ Ka6 Be6 Rd7 Rf3 Kb5 Rb3+ Kc6 Rb1 Na4 Qa5 Nc5 Qe5 Rd6 Bd5+ Kd7 Qff6 Qc1 Be3 Bb5 Qfg5 Qc3 Rhc1 Qe1 h1Q Ba6 Qhh2 Bf1 Bc4 Rd5 Bg1 Rd6 Be6+ Ke8 Qf2 Kf8 Bd5 Rd7 Qgf5
1B1Qn1N1/6Qq/3Nn1b1/N2bBb2/1q1q3R/4R1KP/nBkb3B/rq1r4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 b4 a6 b6 Ne7 b7 Nf5 b5 Nh6 b6 Ng8 Bg2 hxg4 Be4 Rh6 Bd3 Rh8 Bb5+ axb5 Kf2 Kd7 e4 Kd6 d4 c5 h3 g5 Bb2 f5 Bc3 f3 Nd2 g3+ Kf1 c4 Nb1 g4 Ne2 b4 Ke1 g2 Kf2 b3 Qd2 b2 Qg5 g3+ Ke3 g1Q+ Kf4 f2 Ra7 f1B Qg7 g2 Qg3 Qh4+ Kf3+ f4 Nd2 b1B Qg7 Nc6 Ra4 Qh7 Nc1 Nf6 Ncb3 Nd8 Rh2 Bfd3 Bb2 c3 Rh1 Qh2 Re1 g1Q Rc4 Ra1 Na5 c2 Re2 Be7 e5+ Kd7 d6 Ke6 d7 Kf5 e6 c1N d5 Bb4 e7 Na2 Rd4 Bc4 e8N Rf8 d6 Bd5+ Rde4 Qd4 Ndc4 Rf7 b8B Bc3 b7 Bd3 Re1 Qd2 Rg1 Qe1 Kg2 f3+ Kh2 f2 Rh4 f1Q Rg3 Qe7 Re3 Bd2 Bc7 Qb1 b8B Nb7 d8B Nc5 d7 B3e4 Bf4 Bc2 Rb3 Ke4 Bdc7 Rf8 d8Q Bce6 Rb5 Kd3 Bce5 Bg4 Rb4 Ne6 Rb5 Qa3 Ncd6 Qaa4 Rc5 Qab4 Rc6 Bh5 Rc4 Bg6 Rc3+ Ke2 Bg3 Kd1 Re3 Rf7 Bgf4 Rc7 Bg3 Bcf5 Bgf4 Rc1 Bg3 Nd7 Nf6 Kc2 Ng8 Rd1 Bgf4 Nf6 Bg3 Bb3 Kg2 Ne8 Bh2 Bc4 Kg3 Bd5
b3Qr1b/2nqn1N1/1NBbQ1q1/1R1r1R2/2qR4/q3QP2/5R2/2bK1nBk w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 d4 Kd7 g4 Kd6 f3 e5 g5 h5 b6 c5 g6 c4 g7 c3 b7 e3 Bb2 e4 Qa4 h3 Qa3 h2 Qa7 e2 Ra3 c2 Qa5 c1B Ba1 b3 Qd2 h4 Qg5 h3 Bc3 b2 Nd2 b1Q Ra2 Ra5 Nb3 Na6 b8R Qd7 Qe3 Nc7 Rb5 Ne7 g8Q Bb7 Nc5 Ba8 Ne6 Qb2 Ng7 Qa3 Kf2 e1B+ Ke2 Bg3 Kd1 Be5 Ne2 Bf6 Rg1 h1Q Rg5 h2 Nf4 Qg1 Rf2 h1N Rf5 Qg6 Bd3 Be5 Bc2 Ng3 Ba4 Nf1 Qf7 Qc6 Bd2 Qc4 Qg8 Kd7 d6 Kc6 d7 Kd6 d5 Bd4 Rf6+ Ke5 d8Q Bdb2 Qe8 Ba1 Qe2 e3 d6+ Kd4 d7 Bc3 Rb3 Rd5 d8R Ba1 Rf5 Bc3 Qe1 e2+ Kc2 Ba1+ Bc3+ Ke3 Bc6 Bab2 Rb5 Ba1 Nd3 Bab2 Nc5 Ba1 Na4 Bab2 Qd1 e1Q Nb6 Ba1 Rg2 Qeg3 Rf2 Qg3d6 Qgf7 Qd7 Qg8 Nd2 Qg1 Bab2 Kd1 Ba1 Rh5 Nf1+ Bd4+ Kf4 Qe6 Rg8 Qh1 Kg3 Rf5 Rh8 Qh6 Rg8 Ra2 Bab2 Qhe3 Kg2 Qd3 Kh1 Bg1 Bc3 Rf2 Bd4 Nh5 Bh8 Ng7 Nc8 Qd2 Bd6 Qd3 Ne7 Qd4 Re5 Qe3 Rd5+ Ke1 Bb4+ Qc3 Rd3 Nh5 Rf8 Ng7 Qc8 Rdd5 Rd2 Qce3 Bd6 Rd3 Qd7 Rdd5 Rc2 Kd1 Re2 Qc5 Re4 Qe3 Re5 Rd4 Rd5
bN2Nq2/1Rn4r/QK6/1q4b1/NRqBr1Q1/1P1r2qn/B2Nn3/4R1nk w - - 0 1 legal: proof: c4 d5 cxd5 e5 Qa4+ b5 Qb3 b4 Qd1 b3 axb3 Bg4 Ra6 Bd7 Ra1 Bc8 f4 exf4 Ra2 a5 Ra1 a4 h4 g5 Nh3 gxh4 Ng1 a3 Ra2 axb2 Ra3 Bh6 Ra1 Bf8 Kf2 Ke7 e4 Kd6 d4 f5 g4 c5 g5 h5 g6 h3 g7 h4 Bd3 h2 Qd2 f3 Ke3 f2 Bf1 h3 Ra3 c4 Qe1 c3 Qd2 c2 Ra6+ Nc6 Ra2 f4+ Kd3 f3 Kc4 Rh4 Kb5 Bb7 Bd3 f1Q Bc4 f2 Qh6+ Nf6 g8Q Ne5 Nd2 b1Q Ne2 Nf3 Ra4 Ng1 Qg4 Be7 Nc3 Qf8 Kb6 Rd8 Bd3 Ba8 Bb2 c1N Rb4 Nce2 Na4 Qbe1 Bb1 Rd7 Ba2 Rd8 Qe3 Ne8 Qd3 Nc7 Qa6 Bg5 Bc3 Ng3 Bb2 Qc4 Ba1 f1Q e5+ Ke7 e6 Kf6 d6 N3e2 d7 Qg3 e7 Qf5 Qf3 Re4 e8N+ Kg6 Qg2 Kh5 d5 Kg4 d6 Qfd5 Bd4 Qdb5+ Ka7 Nf3 Ra1 h1N Re1 h2 Qg1 Nf2 Qg2 Qbf5 Kb6 Nfg1 Qf3+ Kh3 Qh5+ Kg2 Qg4 Rc8 d8N h1R d7 Rh7 Nc6 Kh1 d8R Nh3 Rd7 Rd8 Re7 Rd5 Nb8 Rd7 Bh8 Rd3 Bd4 Nb5 Ra7 Nc7 Rb7 Qfb5+
2R4Q/5rq1/n2N1NQ1/1bnBR1R1/4qQ1P/1b3Kb1/1Qb2n1q/1B3rkn w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 e5 f4 exf4 b5 d5 cxd5 b6 Ba3 Qf6 Bb4 axb4 a5 Qd6 axb6 Qd8 Kf2 Ke7 d4 Kf6 e4 Kg5 e5 Kh4 b7 g5 d6 f5 d7 c5 b6 g3+ Kf3 b3 d5 c4 h3 g2 d6 b2 e6 c3 e7 c2 e8B c1N Qc2 g4+ Kf2 g3+ Kf3 Qe7 d8Q Nh6 d7 Nd3 Qc5 Rh7 Qe5 Nc5 Rh2 Nba6 b8Q Rf7 b7 Ng4 Qd4 Nf2 Ne2 g1Q Nec3 g2 Na3 b1B Bc4 Bc2 Rh1 Qh2 Qd2 g1Q Rf1 Qg7 Qb6 Ra7 d8R Be6 Bd3 Beb3 Re1 Qe6 Qc8 Bd6 b8Q Rf6 Re3 Raf7 Bc6 Qe8 Bd5 Qe4+ Ke2 Bc7 Rg1 Be5 Rg5 f3+ Kf1 f4 Nc4 Rf5 Nd6 R5f6 Qcb7 Rf5 Rc8 R5f6 Rf5 Kg3 h4 Kh3 Ke1 Kg2 Q8a8 Kg1 Rg5+ Ng4 Q7c6 f2+ Ke2 Rf5 Qa4 R5f6 Qa3 Rf5 Qb2 f1B+ Ke1 f3 Qbc6 Bd1 Bb1 Bb5 Re2 Bbc2 Qf4 f2+ Kd2 f1N+ Ke1 Qa4 Nce4 Ng3 Nf6 Nf2 Kd2 Bb3 Ke3 Bdc2 Kf3 Qc4 Ng4 Ngh1 Qb8 Bc3 Re5 Be1 Qba8 Nd1 Qb8 Bg3 Nf6 Ndf2 Qe8 Rc7 Qg6 Rf7 Qc7 Qa4 Qd8 Qd4 Qh8 Qa4 Ke3 Qe4+ Kd2 Qa4 Qf3 Nh3+ Ke3 Qg4 Qe4 Rf1 Qf3 Qf5 Qf4 N3f2 Kf3 Qe4+
K4Nn1/3rQ1RB/b1N1R3/BnqQ4/1Nr1b3/1bnb2BB/P2n4/r2r3k w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 Kc5 b5 e5 h5 d6 f5 e6 g2 d4+ Kg3 g6 b3 d5 b4 g7 b2 e7 b3 e8N h4 d7 h3 d6 f4 Bd3 h2 Nf3 g1R Be2 Kg2 Bb5 g3 Be3 Qg5+ Qd5 Rh4 d8B Ba6 d7 Rd1 Bc6 Ra7 Ba8 Nc6 Nc3 b1B Ne5+ f3 Qc4 f2 Nf6 f1B Bg1 b2 Qb4 Bfc4 Bf2 Bb3 Nh7 Bbd3 Nd5 b1N Nf8 Nd2 Re1 Nd4 Nc6 h1B Re6 Nb5 Bb7 Kh2 Bc8 g2 Bg3+ Kg1 Qe4 Qh5 Qf5 Rg4 Ndb4 Rc4+ Kd5 Qg5 Rc1 Qe3 Qg5 Rb7 Qe7 Qg5+ Ne5 c5 Ba5 Qh5 d8Q Rd7+ Kc6 Qf5 Bh4 Kh2 Kb6 g1R Nec6 Bhe4 Bg3+ Kh1 Rc2 Ra1 Rc3 Rgd1 Rc2 Nc7 Ka7 Nb5+ Ka8 Rd5 Nb8 Nf3 Rd6 Rc3 Be1 c4 Rg2 Nd2 N8c6 Rd4 Bh4 Qc5 Bh3 Rc2 Be1 c3 Re6 Rcc1 Qdd6 c2 Qe5 Rd7 Qd5 Rcb1 Rg5 c1N Bg3 Ne2 Rg4 Rbc1 Rgg6 Nf6 g8B Rc4 Bh7 Nec3 Rg7 Ng8
n1n1q2B/B1PQ1B1r/N3BRK1/k1N3R1/2r2Qr1/2rnb3/r1q5/4q1rN w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 d5 Kd3 Kd7 e4 Kc7 b4 Kb6 c4 f5 g5 a5 e5 h5 g6 f4 g7 a4 e6 a3 e7 h4 e8N a2 Na3 f3 Bd2 h3 Ne2 f2 Rg1 h2 Nc7 h1Q Nc2 Qe8 Ne1 Ra3+ Bc3 Ne7 g8B Na6 Bf7 Bh6 Rb1 a1R c5+ Kb7 c6+ Kb6 Qd2 Be3 Rc1 R1a2 Ra1 Nb8 Na6 Nd7 c7 Nc8 Rc1 Kb7 b6 Rh7 Rd1 Kc6 b7 Ndb6 b8B Na8 b5+ Kb6 Qc2 Bc1 Qa4 Be3 Rc1 Rb3 Qc4 Rb4 Ba7+ Ka5 b6 Qh4 b7 Qh2 Rh1 g1Q b8Q g2 Bb2 Rba4 Ng3 R4a3+ Ke2 d3+ Kf3 d4 Kg4 d2 Kf5 d1R Kg6 d3 Bh8 d2 Nd3 Rb3 Rc2 Rc1 Ndc5 d1N Qd3 Nb2 Qd7 Rb4 Bc4 f1R Rf2 Rc3 Rf6 Rf4 Be6 Qe1 Rg1 Nd3 Nh1 Rfh4 Qb7 Rbc4 Qe4 Rf4 Rf1 Rfh4 R1f5 g1R+ Rg5 Rhg4 Qf4 Qc2
6k1/Qr6/n2R2Kb/2bNb3/1r2Q1b1/1BNr1B1R/BP4bq/rrRR2q1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Nc6 Ke1 Nce7 Bg5 f4 Ra1 Nf5 gxf5 hxg5 Kf2 Kf7 e4 d5 h4 a5 c4 d3 c5 g4 e5 g5 c6 d4 h5 d2 f6 a4 c7 a3 b6 a2 h6 d3 b7 Rb8 h7 Bh6 Rh3 Qd6 Qc1 d1R Qc6 d2 Ne2 g3+ Kg1 g4 Qe4 f2+ Kg2 Ne7 Nec3 Nc6 Be2 f1R Bf3 Nb4 Nd5 Na6 Nbc3 Rb1 Rh1 Rd8 h8R d1Q Rh3 Bd7 c8B Qe1 Rh7+ Kg8 e6 Qc1 e7 Rd1 e8B Rd4 Rh5 Rb4 Rh1 Be6 Rd1 Bf5 Kh1 g2+ Kh2 g1B+ Kg2 g3 Ba4 Bg4 Bb3 Bd4 f7+ Kf8 Be6 Be5 Rh8+ Kg7 f8R Rd7 Kf1 g2+ Ke2 g1B Kd3 Bc5 Rf6 Rbd8 b8Q Rdb7 Qa7 Qb8 Rd2 Qg1 Rd1 Qd6 Bf7 Qc7 Rd6 Rd7 Bg2 f3 Rc1 f2 Bf3 Bhe3 Rh3 Bh6 Qc4 f1B+ Ke4 Bg2 Bg8 Bh5 Kf5 Kf8 Bf7 Bg4+ Kg6 Qb8 Be8 Kg8 Qe4 Rd4 Rd1 Rbb4 Rc1 Rdb7 Bea4 Rd3 Bb5 Qf8 B5c4 Qf4 Rd1 Rc1 Rb1 a1R Ba2 Qfh2 Bcb3 Rc2 Rbc1 Rf2 Rf1 Rc2 Rcd1 Rcc1 Rfe1 Rcb1 Rc1 Beg7 Red1 Be5
nbb2BK1/k4Nb1/1q4NQ/1rn4q/1nRBQ3/qb1P4/2R1n3/Q1n3NN w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Kf2 a5 Bg2 h5 Ke1 f4 Bh3 Ra6 Qb3 Rf6 Qd1 Rf5 gxf5 Bb4 Bg4 hxg4 Ra2 Bd6 Ra1 Bf8 Kf2 Kd7 e4 c5 b4 Kc7 h4 Kb6 e5 g5 h5 c3 e6 g3+ Kf1 g2+ Kf2 a4 e7 c2 e8Q a3 f6 a2 f7 c4 h6 g4 h7 c3 Bb2 c1N Rh4 c2 Qe4 Nd7 Nc3 Bg7 f8B Ngf6 Nce2 Ne8 Ng3 Nc7 Nh1 Ka7 Bd4+ Nc5 d3 Na8 Rb1 a1Q Rb2 Qa3 Qde1 Rg8 h8N Na2 Qa1 c1N Rc2 Qb6 Nf7 Be6 Rh6 Bb3 Rc6 Nd7 R6c4 g3+ Ke1 f2+ Kd2 f3 Ke3 f1Q Kf4 f2 Kg5 Qd1 Kf5 Nf6 Kg6 Nd7+ Kh7 f1B Bd6 Re8 Bf8 Nc5 Kg8 Qd6 Ne2 Re5 Ng1 Qh5 b6+ Kb8 b7 Ka7 b8N Qb6 b5 Nb4 Nd7 Be2 Qf4 Bg4 Qe4 Rd5 Nde5 Bc8 Ngf3 g1B Ng6 Bh2 Ng1 g2 Qg4 Qb7 Qe4 Bb8 b6+ Ka6 Ng3 Qa7 b7 Qb6 Nh1 Ka7 Nh6 Nd7 Nf7 Rb5 Be7 Bh2 Bf8 Nc5 b8Q+ Ka6 Ne2 g1N Qbf4 Ka7 Qg5 Bb8 Qh6 Nh3 Ng1 Nf4 Qg5 Nfe2 Qge3 Nba2 Qh6 Nb4
3KbNkB/1Q6/R2Q3R/rQ2r1n1/2rBn3/n2rN2r/rqPn2Q1/4q1N1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Qd1 f4 Ng1 f3 Bh3 Bd6 Bg4 Bf4+ gxf4 hxg4 Kd3 Kf7 Ke4 f1N Kf5 g5 e4 d5+ Ke5 a5 h4 d3 b4 d4 b6 d2 f5 d3 f6 a4 b5 f2 b7 g3 b6 g2 h5 a3 h6 a2 h7 g4 Nf3 g1N Bb2 g3 Nh2 g2 Qe1 d1R Nd2 Nc6+ Kf4 Na7 Ke5 Nh3 b8Q g1R b7 Qb6 Qe2 Re1 Ndf3 d2 Ng4 d1R Bd4 Ng5 Qd6 Nb5 b8Q Bd7 Qb7 Ra5 Ne3 Rd3 Rh6 Rg4 Ng1 Nd2 Qf3 f1Q Qg2 Re2 Kd5 Qe1 e5 Qd8 Kc5 Qb8 Kb6 Na3 e6+ Ke8 e7 Kf7 Rb1 a1R Rd1 Ra2 Ra1 Qa8 Kc7 Be8 Rd1 Qa6 Kd8 Qb5 Rb1 Qe5 Rb6 Qb5 Ra6 Qb2 Nf1 Ree5 Ne3 Rf4 Rh2 Kg6 f7+ Kg7 f8N Nf6 Rh4 Nfe4 Rh6 Rg8 h8B+ Kf7 Bf6 Rh8 Bg7 Rh7 Bf6 Kg8 Bh8 Ba4 e8Q Rh4 Qh5 Be8 Qhe2 Rh3 Qef1 Rc7 Qf5 Rc4 Qfd7 Qea1 Qdb5 Qe1
1rB2Qr1/1r2Q3/nk5q/Nqq5/PRq1rN2/5Qq1/b3R1Bb/1Q1B1Kq1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 h4 e4 h5 e3 g5 Be6 Bb2 Nd7 Bf6 gxf6 Qc2 f5 Kd1 f4 Kc1 Ne5 Qd1 Ng6 hxg6 exf2 Na3 Bd7 Nb1 Bc8 e4 Kd7 d4 b5 Kd2 c5 Ke2 Kc7 a4 h5 g7 f5 g6 h4 d6+ Kb6 d7 f3+ Kd3 f4 d5 c4+ Kd2 h3 e5 h2 d6 c3+ Kd3 c2 e6 c1Q e7 b3 e8Q b4 Ra2 b2 Ra1 b3 Nd2 b1R Qee1 b2 Ne2 Qh4 Ra2 Rb8 Bh3 f1R Bg4 f2 Bh3 f3 Nf4 Qg3 Bg2 Nf6 g8B Nd5 d8Q+ Nc7 d7 Qc5 g7 Bd6 Be6 Rg8 Qe7 Na6 d8Q+ Bc7 Bf5 Be6 Qdf8 Bb3 Q1e3 Re1 Bc8 f1Q+ Qee2 Bf7 Nb3 Qfg1 Na5 f2+ Qf3 f1Q+ Kd2 Qfc4 Qc1 Rh8 g8B Re4 Bh7 Rg8 Qc2 Rc1 Qb1 Rc3 Bg6 Rb3 Bh5 Rb4 Qb3 Rb7 Bd1 Bb8 Qf3 Bc7 Qbd3 b1Q Qc2 Qbb3 Qb1 Q4b5 Rb2 Qe6 Rb3 Qh6 Re3 Ba2 Re1 Qcc4 Re2 Qgc5 Rf1 h1Q Rff2 Q1h5 Ke1 Qh5g5 Kf1 Q3g4 Qfg7 Qbc6 Bh1 Ka7 Nh5 R7b6 Qgf8 Rb8 Rh2 Q4f4 Rh3 Qfe3 Qf2 R4b7 Bg2 Qge5 Q2f4 Q6b5 Q4f6 Q3d4 Rb3 Qde3 Q6f7 Kb6 Rb4 Qe5d4 Qf2 Bh2 Nf4 Qg3 Qf3 Qg1#
2K1b2b/2bNb2b/q1R4r/q2rNQ2/2B2bR1/1P3N1k/2B3b1/1QNQ2bn w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 f4 fxe4 g4 b5 axb5 h6 f5 Nc6 g5 Nb4 Bf4 Nd5 Bc1 Ndf6 gxf6 Qc7 Be3 Qd8 Bg5 hxg5 Ke2 Kf7 h4 a5 c4 d5 c5 e5 b6 g4 h5 g5 h6 d3+ Ke3 d4+ Kd2 g3 c6 e3+ Kc1 e2 Kd2 e1B+ Kc1 g2 c7 g4 h7 d2+ Kc2 a4 Kd3 e4+ Kc4 e3 Kb5 a3 Kc6 e2 b7 a2 b8Q g3 b3 d3 Rh4 Ra5 Rg4 Nh6 Rh4 Ng4 Qc2 d1B Nf3 g1B Qa7 g2 Qa6 d2 Qb7 Rd5 Qc1 Bg3 Nc3 e1Q Qb1 Nf2 Bc4 Bc2 Rg4 d1B Ne2 B1h2 Nc1 g1B Qb4 Be6 Kb7 Qe2 c8B Bd7 Qe1 Be8 Bd7 Qa5 Kc8 Qf1 Qd2 Be2 Qd1 Bf4 Bc6 Be7 Bd7 Kf8 f7 Nh1 Bdb5 Be4 Bd3 Bhg3 Bc2 B2d3 Bc4 Qe2 Ng5 Kg7 f8N Kh6 f6 Kh5 f7 Bg2 Nf3 Bc7 Nd7 Bgf4 f8Q Be4 Rg6 Bd3 Rc6 Kg4 Qf7 Kh3 Qf6 Rf8 h8N Bh7 Ng6 Qe6 Qg5 Rf6 Nge5 Rh6 Qf5+ Kg3 Qb2 Qf6 Rb1 a1B Qa2 Bc3 Ra1 Bcd4 Qb1 Qg6 Ra4 Qe6 Ned3 Bh8 Nde5 Qf6 Rc5 Qfb6 Rc6 Qba7 Rb4 Q7a6+ Rb7 Bed8 B4d3 Be7 Bf1 Bfg5 Be2 Qa7 Rb4 Bd2 Rh4 Bf4 Rg4+ Kh3 Bc4 Q7a6+
3QBk1q/P2b2Rr/Q4K1b/b1R1QN2/3b2qN/N1n1b3/4bB1q/q1Q1b3 w - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 f4 dxc4 b4 a5 f5 axb4 h4 Ra5 f6 Rf5 gxf5 g5 Bb2 b6 Bc1 b5 Bh3 g4 Qb3 Nd7 Qd1 Nc5 Bg2 Ne6 Bf1 Ng5 hxg5 Bb7 Qa4 Ba6 Qd1 Bc8 Ke2 h5 Ke3 c5 Kf4 e5+ Ke3 b3 d4 h4 a4 g3 d5 h3 d6 h2 a5 g2 a6 b4 g6 c3 g7 b2 a7 c4 Qd4 c2 Ne2 g1B+ Kd2 e3+ Ke1 c3 Ra5 b3 Na3 b1Q Ng3 e2 Rc5 e4 Qe5+ Ne7 g8Q b2 Qa2 Bd4 Rg1 Bh6 f7+ Kf8 d7 h1Q Bg2 Qe8 d8Q Rh7 Bf3 Qh2 Bh5 Ba6 Qa1 Qa2 Be3 b1B Bf2 c1B Qdd6 Bad3 Qa6 c2 Qb2 Bcg5 Qc1 Qe6 Bg6 Nd5 Rg2 Ke7 f8N Nc3 Bf7 Qa8 Be8 Bge3 Rg1 Bb5 Rg2 Bd7 f6+ Kd8 f7 Qg4 Ng6 Qc8 Qd1 c1Q f8Q Bd3 Nh4 Qa1 Qc1 Qb8 Qd5 Qe5 Ngf5 Qh8 Qfd6 Qh5 Rg7 Qg4 Q6e5 Bb5 Bf7 Bd3 Be6 Ke8 Bf7+ Kf8 Be8 B3b5 Qa8 Bc4 Qd8 Beg5 Ne3 Bf4 Kd2 e1B+ Kc2 Be2 Nef5 e3 Kb3 Nb1 Kc2 Ba5 Kb3 Nc3 Kc2 Bd1+ Kd3 e2 Kc4 e1B Kd3 Na4 Ke4 Be2 Kd5 Bfe3 Kd6 Bdb5 Ke6 Bd7+ Kf6 Nc3
R1bk1N1b/2b1q3/qRq2P1B/1B4BK/4N1Rb/1b3B1b/Q1q4q/3n2Qr w - - 0 1 legal: proof: g4 a5 e4 b5 h4 f5 d4 fxe4 b4 axb4 f4 c5 f5 cxd4 g5 Ra6 Bd2 Nc6 Bc1 Ne5 Nf3 Rf6 Ng1 Nf7 gxf6 g5 Nh3 g4 Ng1 Ng5 hxg5 Bh6 Nf3 Bg7 Ng1 Bf8 Ke2 e5 a4 h5 c4 d5 g6 g3 c5 b3 c6 e3 Kf3 d3 g7 h4 Kg4 e4 c7 g2 a5 h3 a6 h2 a7 b4 a8Q b2 Ra2 d4 Qb3 e2 Qd1 e1B Qa7 e3 Ra3 e2 Ra5 d2 Qa6 b3 Qe6+ Ne7 g8B d3 Qc4 Bg3 Qd4 e1B Qf3 d1B Qe3 d2 Nc3 b1B Ne4 b2 Ra6 Bb3 Bd5 d1Q Rb6 Qd3 Ne2 g1Q Nd4 Qa6 Qfe2 Bg7 f7+ Kd7 f6 Nf5 f8B Qe7 Q3f2 Ne3+ Kg5 Ba5 Ne6 Nd1 Bf4 Qg2 Rg1 h1Q Kg6 Be1 Bg5 Qgh2 Qc2 Bh4 Rg4 Ba5 Qg1 B1a2 Bd3 b1Q Qe2 Qc1 Bb5+ Qc6 Qc4 Qc2 Qa4 Bb1 Qa3 Rh7 Qa2 Bh8 Bfh6 Qhg2 Kh5 Qh2 Nd2 Ke8 Bf3 Kd7 Nf8+ Ke8 Qa3 B1a2 Ne4 Bbe6 Rg3 Bh3 Rg4 Bb3 Qa2 Bce6 Ng6 Kd7 c8R Bf5 Rb7+ Bc7 Ra8 Bfe6 Rb6 Bf5 Ra7 Kd8 Nf8 Bc8 Ra8 Qhd6 Nd2 Bg2 Ne4 Bf2 Kg6 Qdd2 Bg7 Rh1 B7h6 Bh4 Kh5 Bh3 Bc4 Qf2 Bb5 Qh2
kbr4Q/3Q1bq1/2Nb4/n3RRqn/Np3Q2/8/B1BrPn2/1Rq1QKr1 w - - 0 1 legal: proof: f4 e5 g4 a5 c4 d5 cxd5 h6 b4 axb4 Bb2 f5 gxf5 exf4 Bf6 Nd7 Be7 Nb8 Bg5 hxg5 h4 Kd7 d4 b5 a4 c5 a5 Kc7 f6 Kb7 h5 g4 d6 g5 d5 f3 h6 f2+ Kd2 g3 h7 g2 d7 g4 f7 c4 d6 g3 Rh6 b3 Rh3 b4 Nf3 g1R Qe1 b2 Nc3 b1Q Na4 g2 Nd4 Nh6 Nc6 Qg5+ Re3 Qbg6 d8R Qg7 d7 Bd6 f8Q Ng4 Rb1 c3+ Kd1 Ra6 Qf4 Ka8 Rf8 c2+ Kd2 Rb6 d8Q Be6 a6 Bf7 a7 Rb7 Re6 Rd7 Re5 c1B+ Kd1 Nf6 Qe7 Nh5 Qe8 Rg8 h8Q Rd8 Qd7 Bb2 Rf5 Bbe5 Re8 Rc8 Re6 Rgd8 Kd2 Rh1 Re7 g1N Bg2 f1Q Be4 Nh3 Bc2 Nf2 Re8 Na6 Ke3 Nc5 Kf3 Bb8 Re6 Bed6 Ree5 Nb3 Ke3 Na5 Kd2 Qfg1 Ke3 Ng4+ Kf3 Qe3+ Kg2 Rh4 Kf1 Nf2 Qhe8 Qc3 Qh8 Rg4 Be4 Qf8 Qe8 Qc1 Bc2 Bdc7 Qe7 Rd2 Qd7 Qfg7 Nd4 Kb7 a8B+ Ka7 Bd5 Rg2 Be6 Ka8 Nc6 Bd6 Ba2 Rg1+
6Nr/1P1kn1bN/1q2q2B/2nr2R1/2QbnN1B/2pq3r/Q2bN2B/5K1R w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 h5 Kf2 f5 Ke1 f3 Bg2 f4 Bh3 Bf5 gxf5 Qd5 Bg4 hxg4 Kf2 Qd6 Ke1 Qd8 d4 g5 b4 c5 h4 a5 e4 f2+ Kf1 a4 d5 g3 d6 a3 h5 g4 f6 c3 f7+ Kd7 e5 c4 h6 c2 h7 a2 b6 Bg7 b5 Qg5 b7 Ne7 b6 Qf6 Qd3 Qe6 Nc3 Ra3 Nge2 Na6 b8B Nc5 Nd5 c3 b7 Ra5 Rb1 a1R Rb5 R1a4 Bd2 c1B Qc4 Rb4 Be3 Bd2 Qa2 Rd4 Qc4 Rd3 f8N+ Ke8 d7+ Kd8 Kg2 f1N Kg1 f3 Bh6 g2 Ndf4 Ng3 Bd6 Rg8 h8Q Nge4 Nh7 Re8 Qg8 f2+ Kh2 g1B+ Kg2 g3 Kf1 Rf8 Qf7 Rh8 Qa2 Qb3 Qc4 Rd5 e6 Rh5 Bb8 Rh3 Ba7 Kc7 d8B+ Kd6 Bb8+ Kc6 Nc1 g2+ Ke2 Nd5 e7 Ra4 e8N Kd7 Qd3 Ne6 Nh5 Rd4 Bh4 Ne7 Rg5 Qc4 Bc7 Qc6 Qdc4 Rd5 Bh2 Qa6 Nf4 Qc6 Kd1 f1Q+ Be1 Qf3+ Nce2 Qd3 Bh4 Bb6 Re1 g1Q Nef6+ Kd6 Ng8 Kd7 Rf1 Qg4 Rh1 Bbd4 Re5 N6c5 Rg5 Bc1+ Ke1 Qge6 Kf1 Qb6 Qb4 Bce3 Qbc4 Bd2
1qQ1n3/N1q3r1/7k/1qBnN3/2R1bPn1/1p3qNK/NqRr1Bb1/1Q3Q2 w - - 0 1 legal: proof: c4 a5 f4 f5 e4 h5 b4 axb4 Be2 e6 Bg4 d5 cxd5 fxe4 f5 Bd6 g3 Bf4 gxf4 hxg4 Kf2 Kf7 Kg2 b5 d4 g5 a4 Kg7 h4 c5 h5 b3 f6+ Kh6 d6 e3 a5 g3 d7 b4 f7 g4 f8N c4 d5 e2 d6 e1N+ Kf1 c3 a6 e5 a7 b2 Nh7 g2+ Kf2 b3 Kg3 c2 Ra2 e4 Qd4 e3 Nc3 b1B Nd1 e2 Bb2 c1Q Qf2 Ne7 Bd4 Nc2 Nf3 e1Q Ne5 Qea5 Bc5 Rg8 Ng5 Nd5 Nc3 Qdc7 d8N Nce3 d7 Rg7 Nge4 Bb7 Rc2 Qb2 Na2 Na6 Qf1 Qb5 Ndc6 Rd8 a8Q g1Q+ Kh4 g3 Na7 g2 Qc8 Ba8 Ng3 Ng4 Kh3 Qf2 Rh2 g1Q Rc4 Qf3 Rhc2 Qcb8 Bf2 Nac7 Bc5 Rdg8 d8B Ne8 Bdb6 Qge3 Qf5 Qec3 Bf2 Rd7 Bbc5 Rgg7 Qe4 Qca5 Qed3 Qac7 Qdd1 Kh7 h6 Rd6 Nf7 Kg6 h7 Bb7 Ne5+ Kh6 R2c3 Be4 Qb1 Nb4 Rc1 Rd2 R1c2 Nd5 h8Q+ Bh7 Qf8 Qe3 Qd6+ Ndf6 R2c3 Bh1 Qe7 Qf3 Rc2 Nd5 Qd8 Be4 Qc8 Bg2+
1n2n2b/N4q2/2K1N3/b1nR2QB/1PQ3rR/2NQq3/r1pbN1kB/bb6 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 h5 a4 e5 axb5 exf4 g4 hxg4 e3 fxe3 Ke2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 Kh4 d4 a5 b6 f5+ Ke5 g5 d6 c5 Kd5 a4 b7 c4 d7 g3 h3 e2 Qb3 e1B Be3 f4 Ne2 a3 Qa2 g2 Nec3 Kg3 h4 g1B h5 f3 h6 f2 h7 g4 Rh4 Qc7 d8Q Bg7 Bd2 Qf7+ Kd6 Bf5 d5 Nf6 Bg5 Rg8 h8Q Bd2 Qh6 Bh8 Be2 f1N Bf4+ Kg2 Bh2 g3 Qg5 Bb6 Bh5 Ba5 Ne2 c3 Qc4 a2 Kc5 Be4 d6 Ne8 d7 Rg6 Na3 Bc2 Rd1 Bb1 Nb5 c2 Nbc3 a1B Kb5 Bc7 Kc5 Ra2 Kb5 Ba5 Kc5 Bf4 Rd5 Nd2 Kb5 Rg7 Kc5 Nb3+ Kb5 Na6 b8N Bd2 Nc6 Nbc5 Na7 Rg8 Kc6 Rg7 Qe3 Rg4 Qed3 Nb8+ Kb5 Kh1 Qg5 g2 d8N g1Q Ne6 Qe1 Rh3 Kg2 Rh4 Nba6 Kc6 Qg3 Rh3 Qe3 Rh4 Nb8+
1Qb5/2N3N1/Nn3Rrk/1rKBpqN1/P1b5/2nb2Bn/nQ6/2RBqn2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 axb4 e4 fxe4 f4 g5 h4 gxf4 g4 Na6 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 Kf8 a4 Kg7 d4 c5 d6 h5 d5 b5 d7 e5 d6 b3 Na3 c4 Qc2 h4 Bb2 e3+ Kf3 e2 Ke4 e1Q+ Kd5 f3 Qd3 c3 Kc5 b4 Qa6 h3 Bc1 f2 Nb5 h2 Nf3 b2 Be2 b1N Qb7 f1N Bd1 c2 Bf4 c1N Bg3 b3 Nc7 b2 Na6 Qf6 d8N+ Ne7 d7 Nc3 Rg1 b1B Qb2 h1B Ne6+ Kg8 d8N N1a2 g7 Kh7 g6+ Kh6 g8B Ned5 g7 Nf4 Nfg5 Bd5 Rh1+ Nh3 Nec7 Bc4 Nde6 Bbd3 Rc1 Qf5 Bf7 Rd8 g8Q Rd6 Ng7 Rg6 Bd5 Ra7 Rh2 Rb7 Rf2 Rbb6 Qf8 Rb3 Qd6 Nd7+ Kc6 Qf8 Rf6 Nb6 Qb4 Qf7 Kc5 Qe6 Qb5 Qf5 Qb4 Na8 Qb7 Nb6 Qb8 Rb5+
Qn2R3/2q1rQqB/nRR2N2/NP4k1/1K3b2/B5pR/b2r1br1/b1b3Q1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 h5 a4 e5 axb5 exf4 g4 hxg4 e3 fxe3 b4 Ke7 h4 Kf6 d4 g5 d6 c5 d7 a5 b6 e2 Kd2 e1B+ Kc2 c4 h5 g3 b7 g4 d5 c3 Kb3 g2 d6 a4+ Kc4 a3 b5 a2 h6 g3 h7 c2 Rh3 Bf2 Nf3 g1R Nh2 Ra7 Be2 Bh6 Nd2 Bf4 Ng4+ Kg5 Bd3 f5 Ba3 c1B Nb3 Nf6 Na5 Qc7+ Kb4 Rd8 h8Q Ne4 Qf8 Rg2 Qf7 Nc5 Rb1 a1B Nf6 Rh8 d8Q Be6 d7 Ba2 Qe1 Re8 Qg1 Re7 Rb3 Ra6 Bc2 Rd6 Rc3 Rd2 Rc4 Bfe5 Qdf8 f4 d8R f3 Bh7 Bf4 Rc8 B2e3 Re8 f2 Qh8 f1Q Rc2 Bf2 Rc4 Ncd7 Rc6 Nc5 Qhf8 Qd3 Qh8 Qg6 Qhg8 Nbd7 b8R Qg7 Rbb6 Nb8 Qe6 Rd3 Qgf7 Rd2 Qc8 Be1 Qb7 Bf2 Qa8 Nca6+
2b1R3/8/q1b2n2/PN3BKp/q1Q1n2Q/B1Rq4/1N1N1nr1/qQrNk2q w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 a4 Ke7 e4 Kd6 Ke2 Kc5 Ke3 b5 Kf4 Kd4 a5 h5 d6 c5 e5 f5 g6 c4 e6 g2 e7 c3 e8Q c2 d3 g3 g7 b3 d7 b4 Qe6 b2 Qh6 b3 Ra3 Qb6 d8Q+ Nd7 Qe7 Ne5 Rh3 Ng4 Qh7 N8f6 g8N Nf2 Qde2 Qa6 Kg5 f4 Nd2 Kc3 d4 b1B d5 f3 Nh6 Rg8+ Qg6 Ra7 d6 Rc7 d7 Rc4 Ra1 b2 d8N Ba2 Ne6 b1Q Ba3 c1Q Nd4 Qd3 Q7e4 Qd1 Ng4 Qa4 Ne3 Rc7 Qe1 Bd5 Nec4 Bc6 Nb5+ Kc2 Ne2 g1Q Qe6 g2 Nb2 Qh1 Nec3 g1Q+ Rg3 Rgg7 Bh3 Qf1 Q1e4 Qc1 Ra2 Qa1 Qh4 Rg8 Bf5 Kc1 Ncd1 Kc2 Nb1 Rgg7 Nb1c3 Kd2 Qec4 Ke1 Nb1 Rg8 Nd2 Rgg7 Kh6 Rg8 Qh7 Rgg7 Rh3 Rg2 Rg3 N2e4 Rg8+ f2 Rg3 f1N Qg6 Nf2 Kg5 Qab1 Ra1 Qa2 Rc1 Qab1 Rc3 Qa1 Rg4 Ng3 Rd4 Rb7 Rd8 Re7 Re8 Re2 Ne4 Rc2 Qh7 Rc1 Nd2+ Qe2 Qd7 Qe4 Qdd3 Qe2 Qb1 Qe4 Rg8 Qd3 Re8+ Nge4+
B1r4K/q1nQ4/4n1n1/pBbq1k1b/R1N4P/4qr2/nn4Q1/NN1RN1B1 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 Kf2 Kd7 e4 f5 h4 a5 d4 g5 d6 Ke6 b6 b3 d7 g3+ Kf3 b2 e5 g4+ Kg2 Nh6 b7 Nf7 Qc2 Bc5 Ra2 Ng5 Ra4 Rf8 Bb5 f3+ Kf1 g2+ Kf2 g3+ Ke3 f2 Kf4 f1N Nf3 g1Q Be3 g2 Ne1 Nd2 d5+ Ke7 e6 Kf6 d6 Nc4 e7 Ne6+ Kf3 f4 Ke4 f3 e8B f2 Qe2 Na6 b8N f1Q Nc6 Qff2 Nd4 Nac7 Nb3 Rf7 Qg4 Nf8 Na1 Ba6 Bc6 Rc8 Ba8 Qd2 Qh3 Bb7+ Kf4 Bf3 Qh2 Qe7 d8N Qd5 d7 Bh5 Nb7 Qee6 d8Q+ Kg6+ Kg3 Kf5 Bb5 Qb6 Bd4 Qa7 Kh3 Qf2 Qe7 Qe2 Qd7+ Qee6 Kg3 g1N Qg2 Nh3 Bg1 Ng5 Nd6+ Kf6 Na3 b1N Kf4 Nc3 Nb1 Nb2 Nc4 Na2 Bac6 Bg6 Ba8 Qe3+ Kg4 Bf5+ Kh5 Bg6+ Kh6 Bh5 Qc6+ Kf5 Qd6 Rf6+ Kg7 Nge6+ Kh8 Rg6 Qd7 Rg3 Rh3 Rf3 Rg3 Qf4 Rg4 Qc1 Rd4 Qe3 Rd1 Ng6+
krNR2Q1/1nq1Q1pR/B3K3/7n/Rb2n1N1/q2RP1bn/5r2/BN1q3n w - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 Nh3 c5 Ng1 cxd4 g4 hxg4 b3 a5 b6 a4 Ra2 a3 Ra1 Bb7 Nh3 Bc6 Ng1 Ba4 bxa4 Rh7 Kd2 Rh6 Ke1 Rh8 Kd2 d5 Kd3 Kd7 h4 Kc6 c4 Kb7 c5 f5 h5 a2 h6 g3 e3 f3 h7 f2 a5 g2 Qb3 f4 Rh2 f3 Rh1 Nf6 Qb4 Nc6 Rh5 Ne4 Nh3 g1N Bg2 f1N Nc3 f2 Bb2 Nfg3 Bf1 Nh1 Rd1 a1B a6+ Kb8 b7 Na5 Be2 f1N c6 Nfg3 Nf2 Nh3 c7+ Ka7 b8R Nb7 Rh6 Nh5 Ng4 Bd6 Rd2 Rf8 h8Q Bg3 Rh7 Rf2 Qg8 Qd6 Re8 Rb8 Nb1 Qd7 Bc3 Bb2 Rd8 Ba3 Qd6 Bb4 Ba1 Qc8 Qe7 Qd7 Kc2 d3+ Kb3 d4 Kc4 Qa4 Kd5 Qa3 Rd1 d2 Ke6 d3 Rc1 d1Q Rc3 Qdc1 c8N+ Ka8 a7 d2 Bb5 d1Q Rcd3 Qc7 Bc4 Nbd6 Bb5 Kb7 a8R Rf7 Ra4 Rf2 Ba6+ Ka8 Qef8 Nb7 Qd6 Ng1 Qe7 Nh3
qQ6/Rr2P3/1Nr1R2B/K4Rnn/bN3rp1/1r6/qrb4B/1Qn2NNk w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Qd1 f4 Ng1 f3 Bh3 Bd6 Bg4 Bf4+ gxf4 hxg4 h4 Kf7 c4 Kf6 b4 Kf5 h5 Ke4 f5 f1R f6 a5 h6 d5 e3 g5 f7 g3 f8R g2 c5 g4 b6 d3 Kc3 a4 c6 f2 b5 d2 Kb4 a3 c7 d4 h7 d3 b7 a2 b6 Bf5 c8Q Nf6 Bb2 Nbd7 b8N Ne5 b7 Ra6 Bc3 Nf7 Rh3 Ng5 Rg3 Nh5 Nd7 Rc6 b8N Rg8 h8B Rg7 Qc1 d1B Na6 d2 Qb8 Ba4 Nb6 d1R Be5 Rb7 Bhg7 Rd2 Ka5 Rb2 Bh6 Re1 Rf3 f1R Nb4 Bg6 Rh3 Rf4 Rf5 Rd1 Rf3 Rd3 Rf6 Rdb3 Re6 Rf8 Rf5 Qd2 Nh3 g1N Qe1 Ne2 Ng1 Nc1 Qf1 Qd6 Bh2+ Qe5+ Qb5 Bh7 Rf3 Rf4 Nd2+ Kf5 Nf1 Qd5 Rd6 Ke5 e4 Kd4 e5 Bc2 e6 Ke4 e7 Qd2 Rb1 a1Q Rf6 Qa2 Ra1 Qd8 Rf5 Qd5 Rd3 Qg8 Rd6 Qd5 Nh3 Kf3 Ng1+ Kg2 Re6 Qf3 Qd3 Kh1 Qe4 Bd1 Qb1 Bc2 Rc5 Ra7+ Na6 Rc8 Qa8 Qa3 Qb8 Qa8 Rf5 Rb7 Ra2 Rc6 Ra1 Rbf3 Ra2 Bab3+ Kb5 Bd5+ Nb4 Qb3 Ra4 Qa2 Ra3 Bdb3 Ra7 Ba4+ Ka5 Rfb3
1qR2K1r/2n3nq/1QQRrN2/6nN/2Q3bq/2N2pBb/N1bP4/2n2B1k w - - 0 1 illegal: No possible last move
N3b2Q/b4Q2/1R1R1q2/K1NQb2N/B5kP/3pBq1q/3n3r/n2nb1rN w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Kd2 Kf7 c4 Kf6 f4 g5 c5 d5 b6 e5 c6 g3 b7 g2 h3 e4 c7 d3 Qh5 g4 Nc3 g3 Bb2 b3 Nd1+ d4 Rb1 Bd6 Nf2 Nd7 b8Q Be5 Bc1 b2 Ne2 g1B h4 g2 Qb3 Nc5 Ng3 Ra2 Qd5 Bd7 c8N Be8 Nb6 Qd6 Na8 e3+ Kd1 e2+ Kd2 Ne7 Rh2 Rg8 Nfh1 Rg7 Qh8 Nc6 Rh3 Nb4 Rh2 Nc2 Nh5+ Ke7 Rh3 Na1 f6+ Kd7 f5 e1B+ Kd1 d2 f7 Ncb3 f8Q Be3 f6 g1Q f7 Qg2 Rf3 Rg5 Rf6 Qh3 Rh6 Rg1 Bb5+ Kd8 Bd7 Qf6 Ba4+ Kc8 Ke2 d1N Kd3 Nd2 Qfg8 Qhf3 f8N Qh3 Nd7 Kd8 Qgg2 Ke7 Qf2 Qff3 Rd6 Qf6 Qb7 Kf7 Qc6 Kg6 Nc5 Qf3 Qf1 Kf5 Qd5 Kg4 Qf2 Ne4 Kc4 d3 Qf1 Nd2+ Kb4 Qh3 Ka5 Qhf3 Nd7 Ba7 Nc5 Nc2 Ra1 b1Q Qf2 Qb7 Rb1 Na1 Rbb6 Qh3 Qf1 Qg6 Qff7 Qf6 Qb3 Qbf3 Qbd5 Ne4+ Ka6 Rag2 Be3 Nd2 Ka5 Rh2
rNb1n2b/2n1RR2/nr6/1Bqr4/nq1PRQ1N/5KBk/3p3B/Q2B3q w - - 0 1 legal: proof: h4 f5 e4 d5 exf5 b5 d4 g5 a4 gxh4 c4 dxc4 Qd3 cxd3 axb5 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Kd7 f4 a5 Kf2 e5 b4 c5 b6 h5 f6 Ke6 g5 Kf5 b5 Kg4 g6 a4 f5 d2 g7 a3 b7 c4 f7 h3 f6 h2 b6 c3 Ba6 c2 Bd3 h4 Bb2 c1Q Nc3 a2 Nf3 h3 Ba3 e4 Bd6 Rh5 Na4 Na6 b8B Qe7 b7 Nc7 Re1 h1Q Nc5 h2 Nh4 Rd5 Bb5 Kh3 Nd7 Qc5 Bg3 e3+ Ke2 Qed6 Rac1 Be7 f8R a1N f7 Nf6 g8B Nc2 Re8 Qb4 f8Q Qdc5 Ra1 Bd6 Ra7 Be5 Re7 Nfe8 Qf4 Bh8 Rf7 Qa4 Bh7 Nb4 Bc2 Nba6 Bd1 Qab4 Re7 Qg1 Rf7 h1R Kf3 e2 Bh2 Ne6 Bd6 Ne6c7 Bg3 Rh2 b8Q Rg2 Bh2 Rg6 Qb6 Re6 Qa5 Rh6 Nb8 Qh1+ Kf2 Rf6 Qa1 Rh6 Be5 Rb6 Bg3 Ne6 Rae7 Ne6c7 Rg1 e1N Bd6 Nc2 Rge1 Na3 R1e4 Nb1 Be5 Nc3 Bh2 Qe1+ Kf3 Qg1 Qf6 Na4 Beg3 Qe1 Qf4 Qh1+
1B1Bk2N/rb5K/1qnrb3/Q4q1P/qpR2Bq1/2R2N1R/n1bn1Q2/4R3 w - - 0 1 illegal: No possible last move, all moves rejected
7b/Br4nq/R3rkbq/1BQ2p2/1Q3KB1/B1rN2PN/nr6/q2NR2n w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 c5 e4 h5 d4 c4 e5 c3 b6 b3 g3 b2 b7 c2 e6 h3 d6+ Kf6 d7 h2 e7 h4 e8B h3 d5 Qc7 d8Q+ Ne7 d6 Na6 b8N Bg7 d7 Ra7 Ra4 Rh6 Qd3 Rb7 Qa3 Bh8 Nc3 b1R Ke4 f3 Bg2 f2 Nd1 f1Q Qc5 Nb4 Nc6 Rb2 Bf3 Na2 Ne5 Qb6 Be3 c1R Nd3 Rc3 Bg4 Rg6 Qdc7 Nf5 Qb4 Ng7 Qcc5 Qd6 d8B+ Qe7+ Kd4 Bf5 Bb5 Rh6 Bc1 Bg6 Bb6 Qf8 Ke3 Qg8 Nf3 Qh7 Kf4 Qe1 Rf1 h1Q Ra6 h2 Ng5 Qc6 Nh3 h1N Ba7 Qb6 N1f2 Qd1 Re1 Qe6 Be3 Qa1 Nd1 Rh5 Be2 Re5 Bc1 Qc6 Bf3 Re6 Bg4 Qd5 Ne5 Rb1 Bge2 Qd2+ Kg4 Qdh6 Nd3 Rbb3 Ba3 Rb2 Rd6 Ke7 Ra6+ Rd6 Kf3 f6 Kg4 Kf7 Kf3 Re6 Kg4 f5+ Kf3 Qh5+ Kf4 Kf6 Bg4 Q5h6+
2nR4/2K3N1/2b1Rnq1/1q1rpQ2/2k4b/2NnBN2/PQn1bNr1/1BB2r2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 c5 Rh3 cxd4 Rh2 Nd7 Rh1 Nb8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 b5 f4 h3 d6 h2 d7 d3 f6 d2 f7 b3 g5 h4 g6 b2 g7 h3 f5 b4 f6 b3 Na3 b1R Qg4 d1N Nc2 b2 Na3 Qb6 d8N Qb5 Qf5 Ba6 Nf3 Ne3 Bd3 Nc2 Re1 h1B Ne6+ Kb4+ Nc5 h2 Ke6 Ra7 Ne4 Rh5 Nf2 Nc6 Re5 Ra8 Kd7 Na7+ Kc7 Nc8 Re6 Rb8 Be3 Rf1 Rd1 b1Q Be4 Rg5 Rd8 Rg2 Bc1 Rb6 Bd3 Rd6 Be3 Qa4 Nb5 Rd5 Nc3 Qb5 Be4 Kc4 Bc1 Nh6 g8Q Ng4 Qh8 Bh6 f8B Bg5 f7 Bh4 Bfh6 Nf6 Red6 e6 f8N e5 Re6 Qe8 Bhd2 Qg6 Be3 Qb5 Qg7 Rg4 Qh7 Bg2 Qe7 h1N Qa3 Rg3 Qb2 Rg5 Re7 Rg3 Ne6 Rg4 Nh3 Nf2 Ng7 Nd3 Re6 Bh1 Ne1 Bf3 Nf2 Be2 Nf3 Rg2 Qa1 Bb7 Qb2 Nf4 Bed2 Bc6 Be3 Na3 Bc2 Nd3 Bb1 Nc2
1nQ1BB1R/2q1B3/N4q2/2Rp1n1n/1r2bb2/PnRQ3r/1rB1KN2/2k4b w - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 g5 exf5 a6 b5 axb5 h4 bxc4 hxg5 c3 g4 Kf7 f4 b5 g6+ Kf6 a3 e5 g7 h5 Qc2 d5 Qd1 h4 Rh3 d3 Qb3 c2 Kf2 d2 Qg3 d1N+ Kf3 e4+ Ke2 b4 Bd2 e3 Nc3 b3 Nb5 b2 Rc1 b1R Nc7 Rb2 Na6 Qc7 Bb4 Bd6 Bg2 Ra7 Be4 Rb7 Bc5 R7b4 g5+ Kf7 g6+ Kf6 Qf3 Be6 Rg3 h3 Qf1 h2 Nh3 h1B Nf2 Rh3 Rf3 Nh6 g8R Ng4 g7 Bf7 Bd3 Bg6 Rh8 Be5 g8B Bh7 Ke1 e2 Bf7 Nde3 Be8 Bg6 Kd2 Bh7 Be4 e1Q+ Kd3 Qc3+ Ke2 Nh6 Qd1 Nf1 Qd2 Qd4 Rc3 Bg6 Qd3 Ng3+ Ke1 Nh5 Ke2 Kg7 Be7 Bd6 Ba4 Kf7 f6 Ke6 f5+ Ke5 f7 Kf4 f8Q Qf6 Qc8 Bh7 Rg1 Bg6 Be8 c1N+ Ke1 Be5 Rg3 Nb3 Rc5 Qh4 f6 Nf5 f7 Qf6 f8B Bd6 Qd1 Bh7 Rgc3 Bg6 R3c4 Ke3 Bc2 Bf4 Kf1 Bh7 Qf3+ Kd2 Qd3+ Kc1 Ke2 Ne3 Rc3 B7e4 Rc6 Nf5 R6c4 Nc6 Rc5 Nb8
1Bb1q3/1bK2bRb/2N2p1P/n1R1n1n1/Bq3k2/5Br1/2Qr1N2/QR2qR2 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 h4 gxh4 g3 h3 Ra2 h2 Ra3 Qh4 Ra1 Qd8 Na3 h5 Qd3 h4 Nb1 h3 Qd2 Be7 Qd1 Bh4 gxh4 Qb6 Ra5 Qf6 Ra1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 a5 b4 f6 c4 a4 h5 d3 h6 a3 b6 a2 b7 f3 b5 d2 b6 f2 Nc3 Ne7 Nd5 Nbc6 b8R Qe8 b7 Ra3 Qc2 d1Q Rb1 a1Q Bg2 f1B Bf3 Ne5 Bf4 Nc6 Ne7 Na5 Nc6 Qd2 c5+ Ke6 e3 Bc4 Ra8 d6 b8Q Qb4 Qa7 Rf8 Rf1 Qae1 Kd4 d5 e4 Re3 Qa6 Rg8 Ra7 Rg3 Rg7 Re2 Qa8 Nd3 e5 Kf5 e6 Rd2 e7 Bb3+ Qc4 Ba2 Bb8 Bb3 Ne2 Ba2 Rhg1 h1N Nc3 h2 Ne4 Nhf2 Rh1 Nh3 Nf2 Ng5 Qa6 Qa3 Qc2 Bc4 Rhg1 h1B Qa7 Qb4 Qa8 Nb7 Qa1 Bg2 Rh1 Na5 Rhg1 Qe2 Rb1 Qe1 Rf1 Bh1 Ne5 Bg2 c6 Kf4 c7 Bh1 Nc6 Ne5+ Qd3 Qb3 Kc5 d4 Kd6 Bf7 Qc2 d3 Bd1 Be4 Bf3 Bb7 c8R Bh7 Kc7 Qb4 Qaa2 Re2 Qa3 d2 Qaa4 d1B Qa1 Qg8 e8B Rd2 Na7 Qgf8 Ba4 Qe8 Nc6 Be2 Rd8 Bed3 Rd5 Bdf5 Rc5 Bfc8
nrB1nKQb/r3b1n1/1q1PB3/1RbNRr2/1p1k2N1/r1q3B1/Q2B4/7R w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 a4 Ke7 e4 Kd6 Ke2 Ke5 Ke3 b5 d6 f5 d7 h5 d3 c5 a5 h4 g5 h3 g6 f4+ Kf3 h2 Kg4 f3 a6 b3 a7 b4 g7 f2 Ra4 c4 Nc3 b2 Qf3 b1R Nh3 g1B Qe2 g2 Nd5 c3 Qa2 c2 Bd2 c1Q Ra5 Qc3 Rb5 Qb6 Kg5 Nf6 Kg6 Bc5 Kf7 Rb3 g8B Na6 d8B Kd4 e5 Nc7 e6 Ra3 e7 Nfe8 Kf8 Rb8 a8Q Rh7 Be2 f1R+ Nf2 Rg7 Be6 Rh7 Qc6 Na8 B2g4 Rg7 Bgf5 Rh7 Ng4 Bf2 Be1 g1B Qc8 Bh4 Bd2 Bf6 Bc7 Rf3 Bg3 Rf2 Be4 Rf5 Bg2 Be3 Bh3 Bf4 Qd8 B4e5 Qc8 Nd6 e8R Rha7 Qc7 Bh8+ Qf7 Bef6 Qg7 Rc8 Qg8 Rb8 Rc1 h1N Bc8 Nf2 Rh1 Nd1 Re5 Ne3 Nf2 Rh5 Be6 Rf5 Ng4 Ne8+ Ne7 Rf1 Ba6 Nf5 Bb7 Nfg7 Bbc8 Qc1 Bh6 Kc3 d4 Rf4 d5 Kd4 d6 Rf5 Bd2 Qc3 Nd5 Be7#
B1qNBq2/5R1K/r1p3nQ/4Qr1R/5bR1/1R2b1n1/PN2Bk1n/1rn1b3 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Be6 Bb2 Nh6 Be5 Bf7 Bf4 gxf4 g5 Bh5 h3 Bg4 hxg4 Ng8 Ke2 Kd7 d4 Kd6 f6 h5 f7 b5 g6 e5 g7 b3 g5 h4 g6 b4 Bh3 f3+ Ke3 b2 Bd7 h3 Qf1 b3 Ne2 f2 Na3 b1Q Be8 h2 Qe1 b2 Nf4 Ne7 g8B Bh6 f8R Nd7 g7 Qc8 Rf7 Ng6 Rg1 h1N Rg4 Qc2 Rb1 Ng3 Qh1 Bg5 Qh6 Ra6 Bh7 Qc4 g8B Qb4 Rh1 b1R Rh5 Be7 Ne6 Nc5 Nd8 Nd3 Bc6 Nc1 Ba8 c6 Nc4+ Kc7 Nb2 Kb6 d6 Bg5+ Rgf4 Qc5 d7 Qf8 d5 Kc5 d6 Kd5 Re7+ Kc5 Bc4 Rg8 Rf7 f1N+ Kf2 Kd4 Be2 Nh2 Rg4 Bd2 Kg2 Rh8 Kh3 Bf4 Bg8 Ke3 Bh7 Ne7 Kh4 Kf2 Bg6 e3 Ne6 e4 d8R Nd5 d7 Ne7 Re8 Rh7 d8Q Rg7 Qd4 Rg8 Bh7 Rg5 Qe5 Rf5 Nd8 Ng6+ Kh3 Qg7 Ree7 Qg8 Rb7 Qg7 Rb3 Qf8 Bb5 e2 Bg8 e1B Be2 Nh8 Kh4 e3 Bh7 Bd2 Bg6 Qb7 Rh7 Qc8 Be8 Ngf1 Rf7 Ng3 Bc4 e2 Bb5 e1B Bc4 Bfe3 Be2 Rf4 Kg5 Ng6 Qh7 Qa3 Kh6 Rf5+ Kg7 Bf4 Qh6 Bde3 Kh7 Qf8
1N2nN1K/1BNR1rRq/1PpQq3/n3b3/5rnN/4k1q1/B2r2R1/2Q1b1r1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 b3 f5 Bb2 h6 Be5 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kd7 h4 Kd6 d4 Kd5 f6 Ke4 d5 a5 h5 a4 f7 a3 h6 g6 d6 a2 d7 c3 b4 g4 b6 g5 b5 c2 h7 c1Q b7 Bb4 f8N Qe8 d8Q Qe6 b6 Qc2 Q8d6 Nf6 Rh2 Nc6 b8N Na5 Bg2 Ra7 Qc1 Ne8 Na3 Rg8 Rb1 a1B h8R Be5 R8h7 Bd2 Rg7 g3+ Kf1 g4 Nb5 Ke3 Ra1 f2 Bb7 c6 Kg2 f1R Nf3 Qb2 Nc7 Qc2 Nh4 Qh7 Ra2 Rf3 Rd7 Rg7 Rh1 Rf7 Rg1 Nc4 Rc2 Ra5 Rb2 Rd5 Ra2 Na5 Rc2 Kd4 e4 Be1 Rb2 Bf6 Rd2+ Ke3 Rf2+ Rd2 e5 Qd5 e6 Be5 e7 Qe6 Kh1 g2+ Kh2 Qeg6 Qa1 g3+ Kh3 Qe4 Kg4 Qd5 Kg5 Qe6 Rgf1 g1R Rg2 Rff2 Qb2 f3 Qc1 Ng7 e8B Rf4 Bf7 Ne8 Rh2 g2 Bg8 Rh1 Rg7 g1Q+ Rg2 Qh2 Rfg1 Rf1 Rd7 f2 Rg4 Qg3 Rg2 Rfg1 Bf7 f1N Bg8 Qc2 Kh5 Rh3 Rgg7 Nh2 Bf7 Ng4 Bg8 Qe7 Ba2 Qb3 Kg6 Qbe6+ Kh7 Rhh1 Nba6 Rgf1 Nb8 Rhg1 Kh8 Rf7 Qa1 R1f4 Qb2 Q7f6 Qa1 Qff5 Qc1 Qh7+
3N3K/1qnRQb1P/b3N1Qp/1qR2B1q/1Q1b2RQ/1b4B1/n4r2/2rr1k2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 h4 Nh6 g4 hxg4 h5 Nf5 h6 Ne7 h7 Ng8 Qa4 Bb7 Qa6 Bc8 Qh6 gxh6 Kf2 Kd7 d4 Kd6 b4 a5 e4 c5 b6 f5 b7 g3+ Kf3 g2 b5 a4 b6 a3 Be2 a2 Bd3 c4 Rh3 c3 Rg3 c2 Nc3 Qc7 Nce2 Na6 b8Q Nf6 b7 Ne8 Nh3 g1Q Rg4 Qh2 Ng5 Qh5 Ne6 Nb4 Nd8 Be6 Qa7 Bf7 b8Q Be7 Bb2 Bg5 Rc1 a1Q Qa4 Na2 Qbb4+ Qc5 Bc3 Rb8 Be1 Qb1 Bg3 Nc7 Qa7 Rf8 e5+ Ke7 e6 Kf6 e7 Qb5 e8Q Qb2 Ne6 Rd8 d6 Rd7 d5 Ke5 N2d4 Rd8 Ra1 c1R d7 Qb1 d6 Kd5 Kf2 f3 Nc6 f4 Bf5 Qb7 Qe7 Qd3 Qab6 Qb5 Qb2 Kc4 Qg7 Qb4 Qg6 Qb5 Rb1 Kc3 Rb3+ Kd2 Rc3 Kd1 Rc5 Kd2 Qa5+ Kd1 Qa3 Kd2 Qb4+ Kd1 Kg1 f2+ Kg2 f1B+ Kf3 Bc4 Ke4 f3 Ke5 Be3 Kf6 Ke2 Kg7 f2 Qh4 f1B Qe7 Rde8 d8R Bb3 Rd7 Rc8 Ncd8 Rd1 Be5 Kf2 Bh2 Bfc4 Bg3+ Kf1 Qh4 Q5c6 Qe7 Ba6 Qh4 Qcb5 Qe7 Bg8 Kh8 Bf7+ Qg8 Ra8 Qh4 Nc1 Bg6 Be8 Nf7 Ra7 Rd8 Ra8 d7 Ra7 Ne5 Rf2 Bf5 Bf7 Nc6 Ra8 Qg6 Rc8 Re5 Ne8 Rd5 Rc7 Rc8 Qb8 d8Q Q8b7 Qde7 Na2 Ncd8 Rcc1 Rcc5 Nc7 Rd7 Bd4+
R1RB2Qn/2q2P2/bNQ1Q1r1/qn2n2K/R4Rp1/3r1N2/br4b1/1k3Bb1 w - - 0 1 legal: proof: h4 e5 g4 b5 d4 exd4 c4 d5 cxd5 f6 g5 fxg5 a4 gxh4 axb5 h3 e4 Kf7 Ke2 Kg6 Kf3 c5 b4 a5 d6 h5 b6 h2 b7 h4 e5 Kf5 d7 g5 b5 h3 b6 c4 e6 c3 e7 a4 e8R c2 Re4 g4+ Kg3 a3 f4 a2 Re2 d3 Re8 d2 Re6 Qc7 d8R Nc6 b8Q Ne5 b7 Ke4 f5 Bc5 f6 Ra6 f7 Ne7 Bc4 Ng6 Qf1 d1R Rde8 Rd3+ Nf3 Bg1 Bg5 c1N Na3 Nb3 Rf6 Nd4 Qa8 Nb5 b8Q+ Bb7 Rc1 a1Q Rf4+ Ke3 Bf6 Rh4 Bd8 Nh8 Qd1 Rg6 Qb3 Ba6 Qc6 Ke2 Rc2+ Kd1 Ra2+ Kc1 Qba8 Re3 Bf1+ Qc3 Qbd5 Rd3 Nc4 Q3a5 Qde6 Kb1 Nb6 Rh5 Rfa4 Rf5 Kh4 Rff6 Nd4 Rf2 Nf3 Rb2 R2a3 Bc5 Rg1 h1B Kh5 h2 Rf4 Bg2 Raa4 h1B Qac8 Bh3 Rg2 Bg1 Rc2 B3g2 Rc3 Bb7 Rca3 Qe1 Ra8 Qa5 Raa4 Ba6 Bh4 Be3 Nd4 Bd5 Nf3 Ba2 Qd8 Bg1 Qg5 Rf6 Rec8 Bg2 Qg8 Rg6 Bf6 Be3 Bd8 Bg1
R1N2N1b/1k2P2B/qn4r1/3p1q1K/2bn2B1/bQ1RR3/B2n1q1Q/4B1rn w - - 0 1 legal: proof: b4 a5 g4 e5 a4 h5 f4 hxg4 d4 exf4 bxa5 b5 axb5 c5 Qd2 cxd4 Qd3 Rh4 Qd1 Rh8 Kf2 g5 e4 f5 c4 g3+ Kf3 g2 h4 d6 c5 Kd7 h5 Kc7 h6 d3 h7 d2 c6 Nh6 e5 Ba6 e6 Qc8 e7 Nd7 Ra3 Rg8 h8Q Bg7 Re3 Nb6 Ne2 g1B Qb3 d1N Bd2 Nf2 Rh3 Nh1 Be1 Qd7 Rd3 Bc5 Nd4 Ba3 Nd2 Raf8 Qh7 Rf6 Nc4 Rg6 Ne6+ Kc8 c7 Bh8 Rg3 Kb7 Nf8 Qc8 Re3 Qe6 Bd3 g4+ Kg2 f3+ Kh2 f4 c8B+ Ka8 Bb1 f2 Ba2 f1N+ Kg2 Nd7 b6 Nf5 Qh2 Nd2 b7+ Kb8 Nb6 Nd4 Rgf3 Bc4 a6 g3 a7+ Kc7 b8R Qf5 a8B d5 Bab7 R8g7 Ra8 Rg8 Rd3 R8g7 Rfe3 f3+ Kg1 f2+ Kg2 Rg8 Ba6 Kc6 Bcb7+ Kc7 Nc8 Nb6 Bc6 R8g7 Bd7 Rg8 Bab5 Kb7 Ba4 Rg5 Be6 R8g6 Be8 Rg4 Kh3 g2 B8f7 f1Q Bg8 Q1f2 Bh7 g1Q Bd7 Rg3+ Kh4 Qgf1 Be6 Q5f4+ Kh5 Rg1 Bf5 Qd6 Bg4 Qd7 Na7 Qa4 Nc8 Qa6 Qg3 Qh3+ Qh4 Qhf3 Qh2 Qf5+
2Qqb1nr/1Pr5/k5b1/b2rN1n1/R1RB1q2/KR3B1n/B2bNp1R/Q7 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Kd7 d4 h5 Kd2 f5 Kc2 c5 Kb2 Kc7 g4 Kb6 d6 f3 e5 f4 d7 b3 d5 f2 g5 f3 d6 c4 g6 h3 e6 h4 g7 h2 e7 h3 e8R Ra7 Qd3 Na6 Qh7 c3+ Ka3 c2 Nd2 b2 Ne2 b1B Bb2 c1B Bg2 f1Q Re4 Rc7 Rc4 Nc5 Qd3 Be7 Qc3 Ne4 Qe5 Kb7 b6 Ka6 b7 Ng5 Qf6 Bg6 Qc3 Qf8 d8Q Bd7 Qc8 Bd8 Qe5 Qf4 Rb1 Bde8 d7 Qd1 Qc3 f2 Nf3 Bd2 Ne5 Rh5 Bf3 Rh8 Rg1 h1N Rg2 Ng3 Rh2 N3e4 Qc1 Rh5 Bd4 Rh8 Rb3 Rh5 Rh1 h2 Qa1 Nh3 Ra4+ Ba5 Rc4 Bg5 d8R Bh6 Rd5 Neg5 Rdc5 Qdd2 Ra4 Qd1 Rcc4 Qd3 Rg1 h1R Rg2 Qdd2 Rh2 Rd1 Be3 Qd8 Bc5 Rd5 Bd4 Ne7 g8B Rh4 Bf7 Ng8 Be6 Bg7 Bf5 Rh8 Bb1 Bf8+ Rbb4 Bc5 Ba2 Bb6 Rb3 Ba7 Bc3 Be3 Bd4 Bd2
1qK2n1N/1p3Bk1/bR3bn1/1b4Q1/6R1/1n1Q1NP1/Q2B1R1n/1rQr1r1q w - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 Ke2 Kf7 Kd3 c5 Kc4 e5 Kb5 h5 d4 e4 f4 a2 d6 e3 d7 h3 f6 h4 f5 c4 g3 c3 d5 c2 d6 e2 Nd2 e1N Ngf3 h2 Ne4 h3 Rb1 a1N Bd2 Bh6 Qc1 Bg5 Bc4+ Kf8 f7 Kg7 f8R Ne7 Bd5 Bf6 Bf7 Nb3 Neg5 Ra1 Rb2 Qc7 d8Q Be6 d7 Ng6 Qe7 Qc8 Kb6 Bc4 d8Q Rb1 Qd3 Ba6 Qee2 Qe8 Kc7 Nd7 Qf2 Qe5+ Kc8 Qd6 Rf1 h1B Qc5 h2 Rf2 Rh7 Qa5 Rh4 Qa2 Rd4 Rh8 Qe5 Rh4 Ndf8 Rg4 Bg2 Nh3 h1Q Nhg5 Nc5 Rb6 Nb3 Bg8 Rd5 Nf7 Bf1 Nh8 Rd7 Bf7 Rd4 Qcb2 c1R+ Qbc3 Rd1 Qc1 Rf4 Qd5 Bfb5 Qd3 Bd8 f6+ Kh7 Ng1 Ng2 Bc4 Ne3 f7 Kg7 Rg2 Nd7 Re2 Rf2 Nf3 Nf1 Be6 Nh2 f8Q+ Kh7 Bc4 Rff1 Qff5 Kg7 Qg5 Nf8 Rf2 Bf6 Bf7 Qb8+
5nbr/5knn/K2RN1p1/r3PN1Q/RB3QB1/B1b4R/b4qn1/3n2nR w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 d4 f5 Kd2 c5 Kd3 g6 Kc4 g3 h4 b3 e4 b2 d6 f3 e5 f4 h5 f2 d5 f3 b6 g2 Kb5 c4 b7 c3 h6 c2 h7 Qh4 Na3 b1B Qd4 Be6 Qc4 Nf6 Nh3 g1N Nf4 Nbd7 b8B Rg8 Bh3 f1N h8Q f2 Bg4 Ne3 Qh5 f1N Ba7 Qh2 Bc5 Rh8 Bb2 c1N Nc2 Ra7 Nd4 Nb3 Ra4 Ba2 Nf5 Bg8 Bba3 Nd1 Qe4 Bh6 Bcb4 Nf8 d7+ Kf7 d8R Nc5 d6 N6h7 d7 Nce6 Rc8 Qd2 d8R Ng7 Rd6 Qf2 Rc3 Nfe3 Ne6 Ng2 Rch3 Bd2 Qc4 Bc3 Qf4 Rc7 Ka5 Rc5+ Ka6 Ra5+
Kr6/b3Q1P1/1bp4b/RN2B1QB/3R1bb1/2N1n3/1QrrR3/1nRbq1k1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 g4 fxe4 f4 h5 Qe2 g5 Qg2 gxf4 g5 Bh3 Qg3 Bc8 Qg4 hxg4 Ke2 Kd7 d4 Kd6 h4 e5 b4 a5 h5 g3 g6 f3+ Ke3 g2 h6 c6 h7 f2 b6 a4 b5 a3 b7 a2 b6 Na6 b8Q+ Nc7 b7 Bg4 Rh4 Ne7 Bb5 f1B Nd2 Bfe2 Rh5 Ra7 Ba4 Bd1 Nb1 Qe8 Nf3 Bh6+ Rg5 g1R g7 Rg2 Bb2 Rd2 Nc3 Rf8 Qc8 Nb5 h8R Na3 Rc1 a1B Qf5 Nb1 b8Q+ Rc7 Qb6 Rb7 Bb5 Rc2 Be2 Rf6 Qf4 Rf7 Rh5 Rd7 Qg5 Nf5+ Kf2 Qe6 Re8 Ne3 Qb7 Rd8 Qb6 Rb7 Kg3 Kd7 d6 Qe7 Kf2 Ke6 d7 Kd6 d5 Qe6 Qb3 Kc5 d6 Qe7 Nd2 Kd4 Nc4 Qe6 Kg3 Qe7 Bf3 Kd3 Na3 Kd2 Qf4 Ke1 Nab5 Kf1 Qg5 Kg1 Qb4 Nd5 Qb3 e3 Be2 e4 Bf3 Nb4 Kf4 e2 Ke3 e1B Kd4 e3 Kc5 e2 Qa3 Rdb8 d8Q Bd2 Qb3 Qe6 d7 e1B Qde7 Nd5 d8R Ne3 Rd4 Bf2 Qa3 Rd7 Qa2 Rbd8 Kb6 Rb7+ Ka6 Nd5 Qaa3 Bf4 Qb3 Ne3 Be2 Rb6+ Ka7 Rd7+ Ka8 Rbb7 Ba3 Bb2 Bd6 Ba3 Bc7 Bc5 Be5 Ba7 Qb2 Rd6 Ra4 Rdd2 Ra5 Ng2 Rh4 Bfb6 Bf3 Bh3 Bh5 Bg4 Rd8 Ne3 Rh2 Qf7 Re2 Qe6 Bd6 Qe4 Be5 Qh1 Rd6 Qh4 Rd8 Qe1 Rd4 Rb8+
6Kn/2Q1nB1R/1Q1r3B/1p1Q1r2/1rbB1R1n/PN2q3/Nr1n1b2/Qn3k2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 c5 Rh3 cxd4 Rh2 Nd7 Rh1 Nb8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 f4 h5 f6 e5 f7 b5+ Kb3 h3 f5 h4 a3 d3 f6 h2 g5 d2 g6 Ke3 g7 Kf2 d6 h3 d7 e4 Nf3 e3 Bb2 e2 Be5 e1N Bb2 Qe7 d8B Qe3+ Nc3 Bc5 f8Q Be6+ Bc4 Nc6 f7 Ng2 Bb6 Ne5 Qc8 Ng6 f8Q N2h4 Qfd8 Rh5 Nd4 Ra4 Bc1 N8e7 g8Q Rf5 Qcc7 Nh8 Qd5 Bf7 Qgd8 Be6 Kb2 b3 Na2 Rb4 Ba7 Bg8 Qdb8 Be6 Qbb6 Bg8 Qdd7 Kg2 Bf7 Kf2 Qdd8 Kg2 Rf1 h1N Rf4 Nf2 Qd5+ Ne4 Qe1 d1R Qc3 Rf1 Bd2 Rf2 Rh1 h2 Qc1 Rf3 Qa1 Rg3 Bc1 Rg6 Bd2 Rd6 Bc1 Qf3 Be3 Nd2 Kc3 b2 Nb3 Qe4 Bd4 Nc4 Bg7 Nd2 Bh6 Be3 Qbb7 Bg1 Bd4 Bf2 Qbb6 Qf3+ Be3 b1N+ Kd3 Nc4 Kd4 Ncd2+ Kc5 Qe4 Bd4 Qf3 Rf1 h1R Rg1+ Kh2 Rg7 Qe3 Rh7 Kg1 Rg7+ Rg6 Rh7 Rg2 Kd6 Kf1 Kd7 Rhh2 Ke8 Rg6 Kf8 Rd6 Kg7 Rg2+ Bg6 Bf7 Kf8 Be6+ Bf7 Rh2 Qdc6 Bc4 Qd5 Rg2 Qbc6 Ne4 Rg4 Be1 Q6b6 Rb2 Rf4+ Bf2 Kg7 Nd2 Kf8 Nc8 Kg8 Ne7+
n3R2N/rBN1n1Q1/4pbq1/PrnnKN1Q/1B4Q1/1bnr2R1/2k5/3r3N w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 c5 Rh3 cxd4 Rh2 Nd7 Rh1 Nb8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 f4 b5 g4 h5 a4 h3 f6 h4 g5 h2 d6 h3 f7 d3 g6 Kc4 f5 b3 d7 b4 f6 b2 g7 b3 a5 Rh5 Qe2 Qe8 d8Q Na6 Qg2 Nc7 Bf4 Rb5 Bd2 Ra7 Nc3 b1N Nd5 b2 Ne2 Kb3 Ra3+ Kc2 Bb4 d2 Ke5 d1R Qg4 Be6 Rg3 Nc3 Bg2 b1N Re1 h1R Qb8 Qc6 Qe8 h2 Bf3 Na8 Bg2 Rb8 Nc7 Rd3 Bd5 Qb6 Bb7 Bb3 Qb5 Nd5 Qe8 Nh6 g8N Bg7 f8N Nf5 Nh6 Nbc3 Qeh5 Rg1 Ng6 h1N Nh8 Nf2 Qf3 Nfe4 Qfg4 Nfd6 Nf5 Nc8 Nd6 Nc5 Nf5 Bh6 f7 Qg6 f8Q Bg5 Qg7 e6 Rf1 Nce7 Rf4 Re1 Rd4 Ndb6 Rd8 Nbd5 Re8 Rg1 Nf4 Bh4 Nh3 Rgd1 Nf2 Bg5 Nh1 Bh4 Bc6 Rb5 Bb7 Bf6+
1n2nB2/k2pP1nr/b2r3B/2qQ1rK1/b7/1R1R3B/1Q1r1NR1/N2Bn1n1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 a5 c4 f5 e4 h5 b4 d3 Ke3 h4 Kf4 a4 e5 d2 b6 h3 e6 g2 b5 g3 g6 h2 b7 a3 b6 a2 c5 Qe7 g7 Kd8 c6 Qc5 Qf3 d1B Qd5 Ba4 Kg5 f4 Na3 f3 Nh3 g1N Nf2 g2 Nc2 Rh7 Rb1 a1N Rb3 Nf6 g8B Ne8 Bf4 Ne2 Rg1 h1R Bd6 R1h4 Bf8 Nd4 Bf7 Ra6 Bh5 Rh2 Bh6 Nf5 c7+ Ke7 Rd3 Nfg7 Bg4 Nb3 Na1 Nd4 Be2 Nc2 Bh3 Ne1 Bd1 Nc6 b8R Bb7 Ne4 f2 c8Q f1R Qc7 Bc8 Qce5 Kd8 b7 Rf4 Qb2 Kc7 Nf2 Rf3 Qa3 Kb6 Qb2+ Ka7 e7 Nf5 Bf8 Nfg7 Bf5 R2h6 Bh3 Rd6 Rh1 g1N Rh2 Rb6 Rg2 Rb5 Rb3 Rd3 Ra8+ Kb6 b8B Rd2 Rd3 Bb7 Ba7+ Ka6 Rb8 Bc8 Rb7 Ra5 Rbb3 Nb8 Bb6 Rb5 Ba5 Ka7 Bc3 Ba6 Bf6 Nh5 B6g7 Ra5 Bh6 Nhg7 Qc2 Rb5 Qc1 Rb4 Qa3 Rf4 Qb2 Rf5+
BqbRN3/2P2k1p/1R2r3/2br3b/Kn3rQ1/R2nQNQr/1n5B/1R4b1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 g4 e5 Kd2 d5 c4 b3 f4 h3 b6 d3 Kc3 b2 Kb3 d4 c5 h2 c6 e4 c7 d2 f6 d3 g5 e3 f5 e2 f7+ Ke7 f6+ Ke6 b7 e1B g6 Na6 b8R Nh6 g7 Ng4 g8Q Nf2 Qg3 Nb4 Na3 b1B Nb5 Ra4 Nf3 Bc5 Nd6 Re8 f8Q Re7 Rg1 h1R f7 Rh3 Qe8 Kf6 Bg2 Re6 Qe2 d1R Ra3 d2 Rb6 Bg6 f8R+ Bf7 Qc4 Nfd3 Qcg4 Bef2 Rg8 Bh5 Rf1 Re2 Qe3 Bg1 Ne8+ Kf7 Bb2 Ree1 Be5 Re2 Qh6 Re4 Qe3 Rf4 Bh1 Re1 Bg2 Ra5 Bd6 Re2 Rb1 Rb5 Ka4 d1N Nh4 Re1 Ba8 Re2 Nf3 Re1 Qd2 Re6 Qc1 Bd7 Qe3 Qb8 Nf6 Bc8 Rd8 Bd4 Ne8 Rd5 Qge1 Bc5 Qc3 Rff6 Bh2 Rff5 Qce1 Rf4 Qeg3 N1b2+
Nn3Bn1/1Bq2bNN/8/QR1bN3/1KP2q2/nr1b2rb/1p3RR1/1k1n3Q w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 g5 f4 gxf4 h4 Nh6 g5 Bg7 g6 Bf6 Qf3 Bg5 hxg5 Ng8 Qg4 Nf6 Qd1 Ng8 Kd2 h5 a4 e5 c4 Ke7 a5 Kd6 f6 Kc5 g7 b5 f7 d5 f8N h4 a6 e4 g6 d3 a7 Kd4 Ra6 f3 Na3 h3 Rd6 e3+ Ke1 Kc3 Ra6 e2 Nc2 b3 Rb6 d2+ Kf2 e1N Ke3 f2 Rb7 b4 Rc7 h2 Rc6 b2 Rf6 b1B Rf3 b3 Ba3 b2 Nd4 Bd3 Bg2 f1Q Nh7 Qc7 Bf8 Bh3 Qb1 d1B Nf5 Ba4 Rf2 Be8 Nf3 Bf7 Ne5 Kb3 Kd2 d4 Be4 Nc2 Bb7 Na3 Rg1 h1B Rg5 Bhd5 Qc1 Nf6 g8Q Ka2 Qc3 Ka1 Qa5 Kb1 Qg7 Rg8 Qh6 Rg7 Qh5 Ng8 Qf3 Bc2 Qh1 d3 Kc3 d2 Kb4 Qc1 Rgg2 d1N Rg5 Qf4 Rh5 Nd7 Rg5 Rd8 a8N Nb8 Rh5 Bd3 Rg5 Ne7 Rgg2 Rg8 g7 Rd6 Rg5 Rg6 Rh5 Rh8 g8R Rg3 Rg6 Ng8 Rg7 Rf3 Rgg2 Rg3 Ng5 Rh6 Ng7 Ra6 Nh7 Rb6+ Ka4 Rb3 Rg5 Rc3 Kb4 Bc6 Rg6 Bce4 Rb6 Bed5 Rb5 Rb3+
q7/rQB2Q1B/1R1n4/2q2Q1N/r1PRbrnq/4QN1p/1K1B3r/2qb1k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 f5 c3 f6 exf6 Ra2 f5 Ra1 f4 d3 c5 Rh3 c4 Na3 c2 Rh2 c3 Nb1 Bg7 Rh1 Bf6 Be3 c1R Bc5 c2 Ba3 Bc3+ bxc3 Bb7 Bb2 Ba6 Ba3 Bc8 Kd2 Kd7 e4 Ke6 g4 Ke5 c4 Kd4 e5 h5 e6 a5 b6 f5 g5 h3 e7 a4 e8Q h2 g6 h4 g7 f3 b7 f4 Nc3 f2 Be7 a3 Rb1 f3 Rb3 a2 Qf8 a1Q Ne4 Nh6 g8Q Ng4 Bh3 f1R Bb4 f2 Ng3 Ra7 Qe1 Nc6 b8Q Nce5 Qf5 Nf7 Qb7 Nd6 Nh5 Qb6 Qee7 Qc5 Qgf7 Be6 Bg2 Bd5 Be4 Qaa5 Rb2 Ra1 Rb1 Ra4 Rd1 Re1 Kc1 Ke3 d4 f1B Kb2 Be2 Nf3 Kf2 Bd2 Rf1 Qee6 Bc6 d5 Kg2 Rb1 Bd1 Qh6 Qd8 Qe3 Qa8 Bd3 Rf2 Re1 h1Q Be4 Nb5 d6 Qh3 d7 Nd6 Bd3 Be4 d8B Qg3 Re2 Kf1 Bc7 h3 Bb4 Rf8 Rd2+ Re2 Bba5 Qh4 Bb4 Bd5 Be4 Rg2 Rd4 Rh2 Bd2 Bc6 Q5e6 Bd5 Bh7 Bc6 Qff5 Rf6 Qf7 Be4 Q5e6 Rf4 Qef5 Nb5 Kc1 Nd6 Rb6 Bd5 Kb2 Bc6 Kb3 Be4 Kb2 c1Q+
4R2n/r2BQ2b/n1q5/k1B2br1/1pn2K2/1RQ2rPN/2QN1r2/1N1q1nQ1 w - - 0 1 illegal: No possible last move, all moves rejected
2B1Knqk/Q5rP/4n1QR/2b1N1R1/R7/1b1r1RqN/1n2qpBN/1q2n3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 g5 Ke2 f5 Kd3 Kf7 Kc4 Kg7 d4 a5 h4 c5 e5 f4 b4 g2 b6 a4 Kb5 a3 e6 c4 d6 f3 h5 g3 d5 g4 e7 c3 e8B a2 d7 c2 d6 c1N h6+ Kh7 b7 f2 Nd2 Nc6 b8Q Qe7 d8N Be6 d7 Nd3 Qc2 Bb3 Nh3 g1N Qa7 g2 Nf7 g3 d8R Nf3 Bd7 g1Q Ne5 g2 Bc8 Nf6 Rd5 Ne1 Ndf3 Rg8 Nh2 Kh8 h7 Nb2 Qg6 Nd8 Rc5 Ne6 Kc6 Rb8 b5 Nd7 b6 Rg7 b7 Qe8 Rc3 Bc5 Rf3 Ra8 b8R Ndf8+ Bd7 Qe7 Rb5 Rd8 Bc8 Rd3 Ra5 Bb6 Ra4 Bc5 Rc1 a1Q Rcc4 Qb1 Rg4 Qh4 Rg5 Qh5 Rf6 Qe2 Rf3 Bd4 Kd6 Rg8 Ke7 Bc5+ Kf7 Rg7+ Ke8 Qe3 Be2 Qf1 Bd1 g1Q Be2 Qfg2 Bf1 Qg3 Bg2 Qf1 Rh5 Qfe2 Rh6 Qe4 Rg1 Qd5 Bf1 Qf4 Rg5 Qg3 Bg2 Nd8 Qb8 Qg8 Qa7 Nde6
bN1QR3/1n1Q1PRb/4Bn2/1q2Kn1N/3B3p/3bQ1Br/1n1q1Q2/b1k2r2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kd4 b6 c5 g5 h5 b7 b3 g6 c4 d3 e3 d6 e5+ Kf3 b2 g7 e4+ Kf4 e2 d7 e1Q Na3 Kc3 d4 b1B d5 e3 d6 e2 Ke5 h3 f4 h2 f5 Qg5 d8Q Nh6 g8Q Bd3 d7 Bg7+ Qf6 Qed2 d8Q e1N Bh3 h4 Qh7 Rf8 Nc2 Ra3 Nb4 Bh8 Qe2 Nd7+ Ke6+ Kb3 b8B c3 Bb2 c2 Qe3 c1N Na6 Kc2 Bg3 Nb3 Ne2 Na5 Nb8 Nb7 Rg1 h1B Nf4 Bg2 Qfd4 Nf6+ Ke5 Be6 Ra2 Bg8 Qhd7 Bh7 Nh5 Bc6 Bc3+ Kc1 Bg4 Rb3 Ra8 Rb1 Q8e8 Nfg8+ Ke6 Be2 f6 Kc2 Qee5 Na5 Bf4 Nd3 Na6 Rf1 Qf2 Kc1 Qee3 Qb5 Kd6 Bg2 Be6 Bh1 Rd8 Ba8 Nb8 Rf7 Rc8 Rg7 f7 Rg3 Qee7 Rh3 Re8 Bg7 Qed8 Nb7+ Kc7 Bf6 Rg7 Nf5 Bg3 Bd4 Ba1 Nf6 Bc3 Bc5 Bce5 Ba3 Bd4 Bb2 Ba2 Ba1 Be6 Qb4 Kc6 Nb2 Kc7 Bd3 Kc6 Ng4 Kd5 Nf6+ Ke5 Qb5+
B2Q2qn/p3nQPk/b2Q1q2/1n1N4/qN1nNr1N/b3r3/2K1RqR1/1B6 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 cxd5 e5 h4 gxh4 Ba3 exf4 axb5 Bd6 b6 Be7 b5 Bf8 Bb4 cxb4 e4 f5 d4 Kf7 Kd2 Kg7 g4 h5 g5 b3 b7 f3 d6 h3 d5 f4 d7 f2 g6 f3 b6 h2 d6 b2 e5 h4 e6 h3 e7 Nc6 b8Q Nh6 e8B Ba6 b7 Nf7 Nc3 b1N+ Kc2 Rh4 Ne4 Qf6 d8Q Rf4 d7 Nh8 Qbd6 Nc3 b8N Ne7 Bd3 f1N Nc6 f2 Nb4 Nb5 Nd5 Nd2 Qf1 Nb3 Nf3 Kg8 g7 Kh7 Rg1 h1Q Rg5 h2 Re1 Qg2 Re2 h1Q Bh5 Qg4 Nh4 Qge6 Rg3 Qg8 Rg2 Qh3 Bf3 Qg4 Qe8 Rb8 d8N Ra8 Qd1 f1Q Nc6 Qf2 Qf7 Re8 Qd8 Nf5 Qd2 Ba3 Qb4 Re5 Qbd6 Ne7 Ncb4 Qd7 Kd1 Qc6 Bc2 Qc4 Bb1 Qcd4+ Kc2 Qa1 Nc5 Re3 Ne4 Qad4 Bg4 Qa1 Bc8 Qad4 Bb7 Qa1 Ba8 Qad4 Na2 Qa4 Nab4 N3d4+
2q1N1N1/5n1Q/1BNnbqQ1/K1qr2NR/6k1/2R4n/1nB1pP1n/Q1b2b2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 h4 fxe4 b4 g5 Bc4 gxh4 Bf1 a5 Be3 a4 Bc1 Ra5 bxa5 Bh6 Be3 Bg7 Bc1 Bf8 Kd2 Kf7 c4 Kf6 g4 Kg5 c5 d5 a6 e5 c6 h5 c7 d3 Kc3+ e3 b6 e4 a7 d2 a8N h3 b7 h4 Qf3 d1Q Bg2 h2 Nd2 d4+ Kc4 d3 Kb5 e2 Nb6 e1N Qg3 e3 Bb2 a3 Rc1 h3 Qd6 e2 Qd4 a2 Nd5 a1Q Nc4 d2 Nce3 Na6 b8N Be6 c8Q Ba3 Qc2 Nf3 Qcc4 Qc2 Qc7 d1N Qc6 Nh6 Ne7 Nf7 Ng8 Rh5 Nd5 Nc7+ Ka5 Qc8 Ndf6 Nb5 Ne8 Qc5 Rc3 Kh4 Qb6 Rd5 Nc6 N3g5 Bc1 Nb2 Be3 Na4 Qb7 Bc1 Be4 Nb2+ Qa4 Qb1 Bg6 Qf5 Qa1 Qf6 Bb1 Nf3 g5 Kg4 g6 N3g5 g7 Nd8 Nf3 Ndf7 Rd1 h1B Bc2 h2 Qa6 Bg2 Rh1 Nh3 Ng5 Bf1 Qb7 Qf8 Bb6 Qc5 Qa7 Bg2 Rf1 h1N Qd7 Ng3 Rh1 Nf1 Qa7 Ng1 Rh5 Nh2 Qe7 Qf3 Qf6 Bf1 Qg6 Nh3 Nge7 Bf5 g8Q Be6 Q8h7 Qf6 Ng8 Nbd6+
2n1q2r/4rR2/3P2BN/1Rpk3B/B3qnN1/1nrb1rr1/3K2QB/1q1Q3N w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Ra4 Be7 Ra5 g4 Ra1 Bg5 hxg5 fxg3 b4 Kd7 e4 Ke6 d4 a5 e5 c5 g6 h5 g7 f5 b6 c3 b5 h4 b7 h3 b6 g2 Bd3 h2 Nd2 a4 Ngf3 g1R+ Nf1 g3 Ng5+ Kd5 e6 f4 e7 a3 e8B a2 Bh5 c2 Nf7 f3 Kd2 f2 Rb1 a1N Nh6 g2 Rb5 Nd7 b8Q Ne5 b7 Bf5 Ng3 Ra7 Qa8 f1R b8N+ Rb7 Bb2 c1R Nc6 Ng6 Ne5 Rc3 Neg4 N8e7 Bc1 Be4 g8B+ Rf7 Bh7 Rf3 Bc2 Qe8 Ba4 Nf4 B7g6 Bd3 Bb2 Nc8 Bc1 Re1 Rf1 g1Q Nh1 Ree3 Bb2 Rg3 Bc1 Ref3 Bb2 Kc4 d5 Re7 d6 Qd4 Qb7 Qe4 Qc6 Rc1 Be5 Rc3 Nhf2 h1Q Qa8 Qg1 Nh1 Qf5 Qe4+ Qd4 Qee2 Kd5 Qg2 Qb4 Bd4 Qb1 Bg1 Qe6 Bh2 Qe4 Re1 Qc4 Re6 Qcb4 Rf6 Qe4 Rf7 Nb3+
B1k4K/3nQ1R1/1P2N2r/3NQ1n1/B1r2bB1/3npQqq/1n5q/nr4RB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 g4 Qc7 f5 Bb7 Bd2 Bd5 Bf4 gxf4 h3 Qd8 g5 Bf7 Nd2 Bh5 Nb1 Bg4 hxg4 Bg7 Rh2 Bh6 Rh1 Bf8 Kf2 a5 b4 e5 c4 d5 b6 Kd7 g6 h5 c5 h4 f6 a4 g5 f3 f7 d3 Ke3 d2 g7 a3 g6 f2 b5 a2 c6+ Kc8 c7 h3 Bg2 f1Q Nc3 h2 Nge2 Qg5+ Nf4 Be7 Rg1 h1Q Qf3 Qg3 Ne6 Nf6 g8B d1R g7 Qhh2 Bh1 Nbd7 f8Q+ Bd8 Qa3 Nh7 Qe7 Qfh3 Bf7 Ra5 g8B Ra4 Be8 Rc4 Rc1 a1N Rg2 Rd2 Rcg1 Rb2 Bgf7 Rb1 Bg8 Kb7 c8B+ Kb8 b7 Bc7 Bgf7 Bd6 Bh5 Bc7 Bg4 d4+ Ke2 d3+ Ke3 d2 Nd5 Nc5 Bcd7 Bd6 Bc6 d1N+ Kd2 Nb2 Ke3 Rg8 Bed7 Rg6 Be8 Rh6 Bed7 Ka7 b6+ Ka6 Be8 Nd7 b8Q Bc7 Ba4 Bd6 Beh5 Bc7 Qh8 Kb7 Be8 Kb8 Bc6 Kc8 Ba8 Bd6 Qhg7 Ndf6 Ba4 Nd7 Kd2 e3+ Ke2 Nd1 Kd3 e2 Qgg5 Nb2+ Ke3 e4 Qe5 Rc6 Kd4 e3 Ke4 e1N Kf5 Qgh4 Rg3 Ned3 R3g2 Rc4 Rg3 Rh5+ Kg6 Rh6+ Kg7 Qg5+ Kh8 Qg6 Qd4 Bf4 Qe5 Qg5 Bf5 Qgh4 Rg7 Q4g3 Bg4 Ng5+
b1k1q1K1/R1b4R/2B2r1Q/1Nn2p1b/PN3NN1/2qrb3/1QB4b/4bb1R w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 g5 Ra6 Qb3 Ra4 Qd1 Ra8 Ba3 f5 Bb2 Nd7 Bd4 Ndf6 gxf6 h6 Bf2 Ra7 Bh4 Ra8 Bg5 hxg5 Kf2 Kd7 Kf3 b5 h4 c5 a4 b3 d4 b4 e4 c4 h5 c3 f7 b2 h6 c2 h7 c1B e5 b3 d6 Ra6 d5 Be3 Bc4 Qe8 Qc2 Nf6 Na3 b1Q Ne2 b2 Nb5 Qe1 Rc1 b1B Qb2 Bd3 Bb3 Bb7 Bc2 Ba8 e6+ Kc8 e7 Nd7 Rb1 Rg8 h8R Qc3 R8h7 Nc5 Rbe1 g6 Rb1 Bg7 f8Q Be5 Qh6 Bd2 Rbc1 Be1 Rd1 Rf8 Rd2 Rf6 d7+ Kb7 d8N+ Kc8 Rd1 Bc7 Nf7 Rad6 Ne5 Rd8 Ng4 Rd7 Kg2 f3+ Kh3 f2 Nf4 Be2+ Rd3 Bd1 d6 Bdf3 Rd2 f1B+ Rg2 Qg8 e8B Qe6 Nf2 g4+ Kh4 g3 Kg5 Bh5 Ng4 Qg8 Re2 g2 Ree7 g1B Reg7 Rd8 Bc6 Qe8 Rf7 Rd7 Re7 Bh2 Reg7 Re7 Rf7 Re3 d7+ Kb8 d8N Kc8 Rfg7 Rd3 Re7 Ba5 Ra7 Bb6 Qg7 Bc7 Kh6 g5+ Qg6 Nb3 Kg7 Nc5 Nf2 g4 Qh6 g3 Ng4 Qe4 Kg8 g2 Nf7 g1B Nfe5 Rd1 Ned3 Be3 Nb4 Rd3 Nf2 Qe7 Ng4 Qe8+
qr1b2B1/R1Rn3P/2r2r1r/pK1N1n1r/1B1rrQN1/3kNR2/5Q2/5qN1 w - - 0 1 legal: proof: d4 b5 h4 e5 g4 c5 f4 cxd4 a4 exf4 axb5 g5 Rh3 h5 Rh2 Bb7 Rh1 Bf3 Rh3 gxh4 Rh1 h3 Ra3 h4 Ra1 Be4 Nc3 Bg6 Nb1 Bh5 gxh5 Be7 Kd2 Ba3 Ke1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 f5 b4 d6 b6 f3 b7 d3 h6 f4 h7 h2 b5 d2 b6 f2 Qe2 d1R Ba3 d5+ Kb5 Kd4 c4 f3 c5 h3 e5 Be7 e6 Re1 c6 Nd7 b8N Nh6 c7 Nf5 Na6 Rb8 c8R Rg8 b7 Rg6 Qc2 Re4 Bc4 f1R Nb4 f2 Nc3 Rf6 Rc7 Rc1 Qb2 f1Q Nd1+ Rc3 Ne3 a5 Rc1 Qf8 Qf2 Bd8 e7 Rc2 e8N Qh8 Bd3 Rcc6 Bc4 Qf8 Re1 Kc3 Re2 d4 Bg8 d3 Nbd5+ Kd4 Bd6 d2 Bb4 Kd3 Re1 d1R Re2 Rfd6 Nef6 Rd2 Nfg4 Rf6 Nf3 Rd1 Rg1 h1R Rg3 h2 Ng1 Rdc1 Rf3 R1c4 Rb2 Rcd4 Rb1 Ra8 b8Q Qe8 Qb6 Rb8 Rc1 Qf8 Ra7 Rc7 Qb7 Qd6 Nb6 Qd5+ Rc5 Rcc8 Qc7 Qa8 Qe5 Rc7 Rd5 Rc3 Rc5 Rc2 Rcc7 Rcc6 Ne2 Rg1 Qeg3 h1R Qf4 Rg2 Ng1 Rgh2 Rg3 Rhh6 Rf3 Rc8 Nbd5 R1h2 Qa2 R2h5 Qf2 Rb8+
B2R4/1R4qq/QQ1bN1pb/1b1Nrk2/1BrP4/q1N4b/1b1Q3N/1nK2b2 w - - 0 1 illegal: No possible last move, all moves rejected
1Qq1B3/Q2q1PN1/1N4bk/3N2n1/3B2rb/1b2K1R1/npRbBnN1/b2b4 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 f5 cxd5 fxe4 Nc3 b5 Nb1 Ra6 Bb2 Rb6 Ba3 axb4 Bc1 b3 Ke2 b4 Ke1 Rb5 axb5 Bf5 Nf3 Bd7 Ng1 Bc8 Ke2 Kf7 d4 Kg7 g4 e5 f4 c5 b6 h5 f5 b2 g5 b3 g6 h3 b7 h2 d6 c4 d5 c3 d7 h4 d6 c2 Qd4 h3 Qa7 e3 f6+ Kh6 g7 e4 f7 Nc6 b8Q Nb4 Qc5 Na2 Qca7 Nf6 g8B Nh7 Nd2 b1B Nc4 Bg7 Bb2 c1Q Nf3 Ng5 Bh7 Rg8 Rg1 h1B Bd4 h2 Ne1 Qc7 d8N Be6 Nb6 Qd7 Bf5 Qcc8 Rg3 Bf6 Kd1 e2+ Kd2 Bf3 Ng2 h1N Ke3 e1B Be2 Nf2 Nc6 Rg7 Bg4 Rg6 Bb5 Bd1 Nb4 Bc3 Bge2 Bc4 Kf4 e3 N4d5 Bd2 Ba4 Bf5 Rc1 Rg7 Rc2 Bg6 Bc5 Bfc3 Bd4 Ba1 Bb5 b2 Bc6 Qdb7 d7 Bb3 d8N Rg8 Be8 Qbd7 Ne6 Rg7 Bd3 Rg8 Ng7 e2+ Re3 e1B Be2 Ng4 Bf3 Bh4 Be2 Ba5 Rec3 Nf2 Rg3 Bd2+ Re3 Nge4 Nh5 Bf5 Kf3 Rg5 Ng7 Bg6 Kf4 Bc3 Rf3 Rg4+ Ke3 Ng5 Rg3 Bd2+
1q1QQ2B/nb2p2q/PR3NB1/3R4/1bRn4/nn4r1/nkbNR3/4n1KN w - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 c4 g5 h4 gxf4 g5 Ra6 b4 axb4 h5 d5 cxd5 Rg6 hxg6 fxe4 Kf2 Kd7 a4 Kd6 d4 c5 g7 h5 g6 h4 a5 f3 a6 h3 Bg2 e3+ Kf1 f2 Qf3 c4 Ba3 c3 Ne2 c2 Qf7 c1N Nbc3 h2 Qf3 Nh6 g8Q Na2 g7 Nf5 Qh7 Nc6 g8N Bb7 Qf7 Bg7 Ng3 Na7 Qd1 Rh3 Rc1 Qb8 Bb2 b3 Nb1 b4 Be4 e2+ Kg2 f1N Nd2 Be5 Rc4 e1N+ Kf2 Bg7 Qe8 Bh6 Ba1 b2 Nf6 b1N Rg1 h1B Rg2 b3 Kg1 b2 Re2 Na3 Bc2 Bg2 Nh1 b1Q Bc3 Rg3 Ba1 Ng7 Bg6 Ne6 Bb2 Ne3 Bc3 Ne3c2 Ba1 Nc5 Bc3 Kc7 d6+ Kb6 d5 Nb3 d7 Kb5 d6 Ncd4 Bb2 Qd3 d8R+ Ka5 d7 Bge4+ Kh2 Be3 Rdc8 Qb1 d8R Bc2 R8c6 Bf4 Ba1 Bd6 Rb6 Bb4 Rd7 Ka4 Rdd6+ N3b5 Rd5 Ka3 Ng4 Ndc6 Bh8 Ncd4 Nf6 Kb2 Nf1 Rc3+ Kg1 Na3 Qd2 Qc1 Qd3 Qh6 Nd2 Qh7 Qg3 Re3 Qc7 Rh3 Qcd8 Rg3+
qB2nkq1/R4N2/Q1Nn2n1/R3K2r/2NRQ2n/BNrrP2n/5pr1/6b1 w - - 0 1 illegal: No possible last move
B1N1B1qN/K1N3nb/1r4rQ/1br3R1/1kB3Q1/4P2q/2rp1q2/r1B1q2R w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Na3 f2+ Kd2 axb6 Nb1 b5 Bh3 b4 Bg2 Nf6 Bf1 Ng8 Ba3 g5 Bb2 f4 Bc1 f3 Qe1 Nc6 Qd1 Bd6 h3 Bf4+ gxf4 Ne5 h4 g4 Nh3 Nf7 Ng1 Ng5 hxg5 Qb6 Rh6 Qc7 Rh1 Qd8 Kd3 Ke7 Kc4 Kd6 Kb5 h5 a4 g3 c4 h4 a5 d3 e3 d2 a6 g2 a7 b3 g6 h3 f5 b2 f6 h2 f7 Nh6 f8N Nf5 g7 Rh5 g8Q Ng7+ Kb4 b5 Ne2 g1R Ng6 Ba6 Na3 b1R+ Qb3 d1R Nef4 Rc5 Qf7 Rac8 a8B Qg8 Ka5 b4+ Kb6 Bb5 Ne7 Rg6 Qc2 b3 Qcf5 b2 Qf8 R8c7 Rg1 h1Q Rg5 Qh3 Qg4 Rc8 Be2 f1Q Ka7 f2 Bd3 Qe1 Bf1 Ne6 Qh6 Ng7 Be2 f1Q Bd3 Re6 Nfg6 Qff2 Nh8 Rg6 Bf1 R8c6 Bd3 Rb6 Be2 Rd2 Nc8+ Kc7 Bd3 d5 Bf1 d4 Bd3 Rf5 c5 Rc2 Bc4 d3 c6 d2 Bf7 Rfc5 Bc4 Kd8 c7+ Ke8 Nd6+ Ke7 c8B Nh5 Bd7 Ng7 Ra2 Ra1 Be8 b1B Rb2 Bd7 Ra2 Bc6 Nab5 Bd7 Nc7 Bb5 Ra5 Kf6 Nf5 Ke5 Ne7+ Kd6 Ra3 Rd5 Ra5 Kc5 Nc8 Kb4 Rh5 Rc5 Rh4 Qhf1 Rh1 Qh3 Bec6 Rd5 Qhf4 Ba6 Rc5 Rca2 Qd7 Rf6 Qfg4 Bh7 Qd6 Rc2 Be8 Rdf5 Qdf4 Rg6 Qh6 Rfg5 Rc6 Rgb5 Rc5 Rba5 Rh5 Rc5 Rg5 Bb5+
QN3b1B/2qN1B2/nnN4k/qq1R1r2/q5KP/R4Q2/Q4pnQ/4n1bn w - - 0 1 legal: proof: f4 c5 h4 a5 b4 axb4 d4 cxd4 f5 g5 f6 b5 Kf2 g4 Rh3 Ra5 Ke1 exf6 Rh2 f5 Rh1 f4 Nh3 h5 Qd3 g3 Qd1 Ra6 Qd2 Bb7 Kd1 Rg6 Qe1 Rg5 hxg5 h4 Ng1 h3 Kd2 h2 Qd1 Bd5 Ke1 Bf3 Na3 Bg4 Nb1 Bh3 gxh3 Qf6 Kd2 Qb6 Ke1 Qd8 a4 d5 c4 f5 e4 Kf7 Ke2 Kg6 Kf3 g2 a5 b3 a6 b2 a7 b4 a8N d3 e5 d4 e6 d2 e7 b3 c5 d3 h4 Na6 c6 Nf6 c7 Rh5 c8Q Qc7 Nc3 b1Q Bb2 Nd7 Nb6 Qa2 Ne4 Qa5 Ne2 g1B Bh8 b2 Qb8 b1N Nc5 Na3 Nd4 Nc2 e8Q+ Kh7 g6+ Kh6 Qde2 d1N g7 d2 g8Q Nde3 Qa2 d1Q Nc6 Ng2 Qb7 Qd4 Qea8 Qda4 Qf2 Rg5 Bc4 Rh5 Bf7 Nce1+ Ke2 Rg5 Qf3 Rh5 Qbb8 Rg5 Rd1 Rh5 Rd5 Rg5 Nc4 Nb6 N4e5 Rh5 Ned7 Rg5 Qbb7 Rh5 Ndb8 Rg5 Qf2 f3+ Kf1 f4 Ncd7 Rf5 Qfb2 f2 Ke2 Nd3 Kf3 f1Q+ Kg4 Nde1 Qf2 Qfb5 Qf3 Qc8 Qc7 Qb7 Qe5 Qc7 Qeb2 Bd4 Rf1 h1N Rf2 Bdc5 Rfd2 Bg1 R2d3 Bg7 Ra3 Bf8 Qd3 f3+ Qe4 Nf4 Qh2 f2 Qf3 Nfg2+
2q1nR2/2kB1n2/BN1n2pN/2r1q3/5qq1/2r1QRqP/2Q1BK1b/R1n1B3 w - - 0 1 illegal: No possible last move, all moves rejected
bQ3N2/5R1r/1P1B4/1Knb3k/2n1N1n1/RN1Q1qBp/5B2/bNqn1bn1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 d4 cxd4 f5 g6 f6 Na6 Be2 Nb8 h4 Qb6 g4 Bg7 g5 Qd8 Bg4 Bh6 Bf5 gxf5 g6 Bf8 Be3 a5 Ne2 Ra7 Bf4 Rc7 Ng1 Rc3 Bh6 Rg3 Bc1 Rg5 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 Ke2 d5 c4 h5 b4 e5 b6 a4 b7 f4 g7 Kf7 c5 Kg6 b5 d3+ Kd2 h4 Kc3 f3 Kb4 e3 f7 d4 b6 e4 Na3 e2 Bf4 e1N Nc2 d2 Ra2 a3 Rh3 f2 Bc7 f1B Qe2 d1N Bg3 e3 Qd3+ Kh5 g6 e2 Bf2 Be6 Kb5 Bd5 c6 Qf6 c7 Ng2 c8N e1N Nf3 Na6 b8B Nh6 g8N Nc5 g7 Nge3 Nge7 Rh7 g8Q Nhg4 Ng6 Bg7 f8B Nc4 Nd2 Nf3 Bbg3 Ng1 Nb1 Qf3 Nd6 Bh8 Rb2 a2 Ne4 a1Q Bfd6 Qa3 Rb4 Qc1 Nf8 Ba8 Rb3 Bg7 Rh2 h3 Na1 Bf6 Ra3 Bh8 Qd2 d3 Nb3 Ba1 Qc2 d2 Qd3 Ndb2 Qh8 d1B Qe5+ Qf5 Rg2 Bf3 Qe8+ Qf7 Qb8 Qd5 Be1 Nd1 Rf2 B3g2 Rf7 Qf5 Bef2 Bh1 Ng5 Bhd5 Ne4 Qf3
n3rn2/5NN1/Q5QN/Q5qn/q6b/B4Pq1/p1r1nkrR/r1BK1NR1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 Be2 f5 Bg4 b5 axb5 hxg4 f3 Bb7 f4 Bd5 Ne2 fxe4 Ng1 Bc4 Ra2 Be2 Ra1 Bf3 gxf3 Rh4 Ra3 Rh5 Ra1 Rh8 c4 Kf7 b4 Ke6 h4 Kf5 c5 d5 h5 e5 b6 a5 c6 g5 b5 a4 b7 d3 h6 a3 h7 d2+ Ke2 d4 c7 e3 c8N d3+ Kf1 a2 b6 e4 Nc3 e2+ Kf2 e1Q+ Kg2 e3 Ba3 g3 Rh2 g4 Nh3 e2 Rb1 Nd7 b8B Ngf6 b7 Be7 Ng5 Nh5 Nd5 Re8 h8Q Nf8 Qc2 d1N Nf7 Bh4 Qh6 Qg5 Qa6 Nc3 Qd2 Na4 Qda5 Qb4 Rg1 e1Q Ba7 d2 b8Q d1N Be3 Nb6 Bec1 Qa4 Qd6 Nc3 Qh6 Qe5 Kf1 Ne2 Ke1 g2+ Kd2 g3 Qd6 Qae4 Kd1 Ra7 Qh6 Na8 Qg7 Rc7 Ncd6+ Ke6 Qg8 Rc2 Ne3 Qa4 Nf1 Qeg7 f5+ Kf6 Rgh1 g1R Nh6 g2 Qh7 Qg3 Qg8 Q7g5 Qg6+ Ke7 f6+ Ke6 Qe1 Ke5 f7 Kd5 Qea5+ Kd4 Rh3 Q3g4 R1h2 Rh1 Rg3 g1R Rgg2 Q4f4 Rg3 Rg2 Rg4 Rf2 Rgg2 Qfg3 Rg1 Nd7 f8N Rg2 Nd2 Ke3 Nf1+ Kf2 Ne6 Nf8 Ng7 Rec8 Ndf7 Rb8 Qc7 Re8 Qca5 Qd8+ Nd2 Qdd4 Bcb2 Qde5 Rf1+ Ke3 Re1 Rhg1 Rf1 Rf2 Ke1 Rgg2 Rg1 Qeg5 Qh7 Nd4 Qhg6 Re2+ Kd1 Kf2 Nf1 Rb8 Nd2 Ree8 Bc1 Rb1 Nf1 Ra1 Qad3 Ne2 Qga6 Re5 Qdg6 Re8
R1QR1R2/1B5b/1b3K2/1q3q1Q/b2RN1Bn/2pq1P2/rbn3n1/nkNB4 w - - 0 1 legal: proof: c4 d5 e4 dxc4 b3 g5 f3 f5 Bb2 fxe4 a4 b5 axb5 g4 Qc2 g3 Qc1 Bf5 Qd1 Bc8 h4 a5 h5 Bd7 Bd4 Bc8 Ke2 Nc6 Bf2 gxf2 g4 Nb8 g5 Ra7 Ra4 Ra6 Ra1 Rg6 hxg6 Bb7 Rh5 Ba6 Rh1 Bc8 Ke3 Kd7 Kf4 Kd6 d4 Kd5 b6 c5 b4 e5+ Kg3 h5 Kh4 e3 b5 e2 g7 e1Q b7 e4 b6 a4 Be2 a3 Nh3 f1B+ Nf2 c3 Qc1 e3 Rh3 c4 Qb2 a2 Rh2 c2 Qb5+ Bc5 Qa4 c1B Rh3 c3 Qc2 Bf5 Bd1 Kc4 d5 e2 d6 Bb2 d7 Ne7 g6 Nbc6 Kg5 h4 b8R Nb4 b7 Bb6 Rh2 h3 g8B+ Kd4 g7 Bh7 Rh1 h2 Qf5 Nc2 Ne4 Kd3 Kf6 Bh3 Rf1 h1Q Qh5 Qg3 Rg1 e1N Nbd2 Ng2 Nb3 Qg4 Bd5 Re8 Re1 Qf1 g8B Qe2 Bge6 Nf5+ Ke5 Re7 Kf6 Nfh4 Rg1 Qe8 d8R Qb5 Rbc8 Qf1 b8Q Ra7 Rf8 Qe2 Rcd8 Ra3 Qc8 Qf5+ Kg7 Qe3 Bb7+ Qd4+ Nf6 Ra5 Nc1+ Kd2 Re1 Qdd3 Re4 Ra3 Red4 Bg4 Rb1 a1N Kf7 Ra2 Bd7 Ba3 Rbb4 Bb2 Ra4 Qe4 Ra8 Be6+ Kg7 Bb3 Bf5 Ba4 Bg4 Qef5 Be2 Nce1 Ne4+ Kc2 Bd1+ Kb1 Ra6 Nec2 Ra8 Qfd5 Kf6 Qf5+
2R4Q/qQ2nQ1r/2N1b3/K1B1rN1R/2qP1qQ1/6r1/1bb1p2b/B1q3kN w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 dxc4 f5 g6 f6 Bh3 Ra3 Bf5 Ra1 Bc8 g4 Nh6 h4 Ng8 h5 Nd7 g5 Ne5 Bh3 Bd7 Bf5 gxf5 Nf3 Be6 Ng1 Ng6 hxg6 Bc8 b4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 h5 g7 c5 b6 a5 b7 e5 b8B e3 g6 Ke4 b5 h4 f7 a4 b6 f4 b7 h3 Rh2 e2 Nf3 e1R Rc2 h2 Rca2 h1B Bd2 a3 Bd6 Be6 b8Q Rh7 Qb2 Qb8 Qbb3 Ne7 Rc2 a2 g8N Ra3 Nh2 f3 g7 f2 Ng4 f1Q Bh6 Qf4 Nf2+ Ke3 Qg4 e4 Nd2 Bg2 Rac1 a1B+ Rb2 Bf1 Nf3 Bd3 Ne5 Bc2 Nh1 Re2 Nc6 Re1 Ng3 Kf2 Nh1+ Kf1 Bg5 e3 Bh6 e2 Bg5 Ra5 Nh6 Rd1 g8Q Rb5 Qf5 Kg1 Qh8 Bg7 f8Q Be5 Bh4 Rf1 Be1 Rf3+ Qd3 Rh3 Nf5 Rg3 Qf7 Ra5 Qb7 Rb5 Ne3 Ra5 Qdg6 Rb5 Kd2 Ra5 Rb5 Bb2 Qg5 Bb1 Nf2 Rg4 Qfg7 Qf5 Na7 Bh2 Qe5 Ba3 Kc3 Rg3 Qef6 Qf4 Qg4 Be4 Nh1 B4f5 Kd2 Bg6 Qff5 c3+ Kd3 c2 Kc3 c4 Qf7 Bd3 Rh5 Rd5 Nf5 Re5 Rd1 Bc1 Kb4 c3 Ka4 Be4 Ba3 Bd3 Bb2 Be4 Ba1 Bb2 Rd3 c1Q Re3 c2 Bb4 Qd2 Rc3 Qd3 Rc8 c1Q Bc5 Qdc4+ Ka5 Bc2 Nc6 Qa7+
8/qq2rN2/1R2nn1N/1bb2n1N/BP5q/pK1BQ3/R1n1B3/2Q1bqNk w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 Kd2 Ke7 c4 Kf6 Kc2 Ke5 e4 d5 h4 g4 b4 g5 f6 d3+ Kb3 f2 c5 a4+ Ka2 d4 h5 a3 f7 g3 c6 d2 b6 g4 h6 d3 h7 f3 b7 Kf4 e5 g2 e6 Kg3 c7 Na6 b8N Bc5 f8Q Nf6 e7 Bd7 c8B Nc7 e8B Bb5 Bf5 Ne6 Be2 f1N Be4 f2 Ba8 Ne3 Bd7 f1Q Qh6 Nc2 Qc1 d1N Nc3 d2 Be4 Re8 h8N Nde3 Nd1 Nf5 B4d3 Re7 Nf2 d1Q Kb3 Qc7 Rh5 Qde1 Nf7 Qb6 Ra2 Qb7 Nd1 Qef2 Ne3 Qf4 Rg5 Kf2 Qh3 g3 Rg6 Qh4 Bc6 Ne4 Nd7 Nf6 Nf3 g1Q Rh6 Nh7 Nf6 g2 Nh5 Nf6 Rg6 Qh1 Bd7 g1B Be8 Bh2 Ng1 Qa7 Rh6 Bg3 Bc6 Ba6 Ba4 Bb5 Rg6 Qhb7 Rh6 Be5 Rg6 Bc3 Rh6 Nfg7 Nf5 Be1 Qhe3+ Kg2 Rg6+ Kh1 N5h6 Nfe8 Rf6 Nf5 Rg6 Nf8 Rd6 Nf6 Rb6 Ne6
nq6/N1Bq1n1N/R1R3Qq/3Q3r/PR1q3p/rK1nk2b/3N4/r1RBr3 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 e4 Kd7 d4 Kd6 Kd2 c5 Kc2 f5 g6 b5 a3 h5 g7 h4 Bg5 g2 Nf3 g1R Nc3 f4 Bf6 g3 Bg5 b3+ Kb2 c4 Bg2 b4 Rh2 Rh5 Rc1 Qd7 Nd2 f3 Bd8 f2 Bf3 Nh6 g8N f1R Nf6 g2 Nh7 Re1 Be2 Nf7 Bc7+ Ke7 e5 Na6 d6+ Ke6 d5+ Kf5 e6 Kf4 e7 Ke3 Nb5 c3+ Ka1 c2 Kb2 Rgf1 Na7 g1Q Rg2 Qf2 Rg4 Qf4 Bf3 Qh6 Rc4 Rh1 Rc6 Rh2 Bb8 Nc7 e8Q+ Qhe6 Qg8 Qh6 Qg6 Rf2 Nb5 Ra5 Na7 Na8 Bc7 Ra4 Ka1 b2+ Ka2 Rff1 Kb3 b1Q+ Kc4 Qh3 d7 Qb2 d8R Qd7 d6 Raa5 Bg4 b3 Re8+ Qe5 Re6 b2 Kb3 Rf2 Rf6 Rg2 Rf4 Qh8 Rb4 b1Q+ Kc4 Qba1 Kb3 Qad4 Bf3 Qhe5 Be2 Qb5 Bg4 Qb8 a4 Raf5 Ra6 Rff1 Bf3 Qe7 Be2 Bh3 d7 Qed6 d8R Qd7 Rc8 Rgf2 Be5 Rg2 Rcc6 Rh1 Ra1 Rhf1 Bc7 c1N+ Kc2 Nd3 Kb3 Rgf2 Rac1 Rh1 Qc2 Rfh2 Qc5 Rg2 Qd5 Rhf1 Ne4 Rfg1 Bg4 Ra2 Nd2 Rh1 R1c4 Rea1 Bd1 Re1 Rc1 Ra3+
2B1k3/N7/nQ1Rq1pR/r1QBb2n/1Q2KPN1/4r1N1/Nr3q2/3n1rnq w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 h6 Bg5 hxg5 e5 Bb7 f4 Bf3 e6 fxe6 gxf3 e5 Qe2 e4 Qd2 Rh3 Qd1 Rh8 Ke2 d5 h4 a5 c4 e5 b4 d3+ Ke3 a4 b6 g4 b7 a3 c5 d2 f5 g6 f6 g3 c6 a2 b5 g2 f7+ Ke7 c7 Qd6 c8B Qe6 f4 Na6 b8Q Nf6 b6 Nh5 b7 Bg7 Qc1 d1Q Ne2 g1N Bg2 Kf8 Qbc7 Rb8 Ng3 Qf1 Nc3 d4+ Kd2 d3 Ke3 d2 Qb6 Ke7 f8N Rh6 Nh7 Ke8 Qa3 Bf6 Rd1 a1R Qab4 Ra5 Na2 Bg7 Bf3 Qg2 Rh2 Qh1 Nf6+ Kf7 Ng4 Ke8 Rc1 Rh7 Rc6 d1N+ Kd2 e3+ Kd3 e2 Bd5 e1Q Rd6 Qf2 Q4c5 Ra8 b8N Bf6 Qbb4 Rb7 Nc6 Rb6 Na7 e4+ Kc4 e3 Kd3 e2 Rh3 Ng7 h5 e1R h6 Be5 h7 Rf1 Rh6 Rbb5 Qb6 Nh5 Q4c5 Rb2 h8Q+ Kf7 Qh7+ Ke8 Qbb4 Rb8 Qhc7 Rb6 Qbc3 R6b3 Q7b6 Nf3 Ke4 Ng1+ Qf3 Rc3 Qg2 Rf3 Qcb4 Qc5 Qc2 Qf2 Qcc5 Re3#
1Bq2Q1N/2Qb2RN/rr1NP1n1/pb3q2/k2qN3/3BK1br/5Rb1/q5R1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 Kd2 h5 e4 a5 c4 f5 b4 d5 b6 Kd7 g6 Kc6 e5 h4 b7 g2 b8R f4 e6 h3 g7 g3 c5 h2 Be2 f3 Ba6 d3 Ba3 d4 Ra2 f2 Rb7 f1Q Nf3 g1R Nh4 g2 Qc1 Bd7 Nc3 Ne7 g8N Ng6 Ne4 Qf5 Ngf6 Qc8 Nh7 Bd6 Rb2 Re1 Rg1 h1B Ra2 Bg3 b5+ Kd5 b6 Kc6 Qc4 Rb1 Ra7 Rb4 b7 Rb3 b8Q Rb6 Kd1 d2 Ke2 d3+ Ke3 d1Q Rf2 d2 Rb7 Ne7 Ng6 Qa1 Qc3 d1B Bd3 Ra7 Qg7 Ra8 Qf8 Ba4 Bc1 Bb5 Qc7+ Kd5 c6 Raa6 Nd6 Kc5 Ne4+ Kb4 Ra7 Rg8 Nh8 Ka4 Bb2 Rg4 Be5 Rh4 Qb7 Qd4+ Ke2 Rh2 c7 Qa8 c8N Rh3 Re1 g1Q Bc7 Bg2 Ncd6 Qe8 Bb8 Bc8 Qc6 Ng6 Rg7 Qd8 Qc7 Bcd7 Rb1 Qc1 Ra1+ Qa3 Rg1 Qc8 Kd2 Qaa1 Ke2 Qdf6 Ke3 Qfd4+
2Q1R3/Q2Pr1K1/q1b1q3/5k2/q1pbb2q/1Q1N2n1/1nR2NbR/Q2B1Bn1 w - - 0 1 illegal: No possible last move
N4RKQ/nP5N/B1Q4b/B2r1Nn1/6kb/b3p3/2qb1R1R/1nqRq2q w - - 0 1 legal: proof: g4 a5 a4 b5 e4 bxa4 d4 c5 f4 cxd4 f5 g5 Be3 f6 Bc1 Ba6 e5 fxe5 h3 Bd3 f6 Bf5 Bd2 e4 gxf5 g4 Bh6 g3 Bc1 Ra7 Be3 Rc7 Bf4 Rc3 Bc1 Rf3 Bb5 Rf4 Bf1 Rg4 hxg4 Bg7 Bh3 Bh6 Bf1 Bf8 Ke2 Kf7 b4 d5 c4 e5 g5 h5 b5 g2 c5 h4 c6 a3 c7 d3+ Ke3 d4+ Kd2 e3+ Ke1 e2 Kf2 e1B+ Kf3 a2 Kg4 d2 c8Q e4 b6 d3 b7 a4 Kf4 e3 Ke5 a3 Qdc2 d1N Q8c6 d2 Nh3 g1B Bb5 Rh5 Bd3 Bgf2 Rh2 Qc8 Ba6 Nc3 Qb2 d1Q Nd2 Qc2 Nc4 Bd2 Nb6 Nh6 Na8 Nb1 Qd4 Be7 Bb2 Qc1 Bc3 Qe1 Ba5 Qc7+ Qcd6 Qc2 Qc6 Qec1 Qd8 Beb4 Qh8 Bfe1 Nf2 h3 Nh1 Bh4 Ng3 Qe1 Rf2 h2 Kd5 h1Q+ Ke5 Nc3 Rd1 a1Q Rh2 a2 Rf2 Ng8 Rh2 Ba3 g6+ Kf8 Ke6 Qac1 f7 a1B Ke5 Ke7 f8R Rg5 g7 Nf6 g8R Nh7 Rg6 Rh5 Rg4 Ng5 Rf4 B1b2 Rff2 Ba1 Qg2 Kd7 Kf6 Nc6 Kg7 Na7 f6 Ke6 f7 Nb1+ Kg8 Bg7 Nf5 Kf6 Qc6+ Ke5 Re2 Kf4 Ref2+ Kg4 Re8 Bab4 f8N Bh6 Nh7 Ba3 Rf8 Ne6 Ne7 Rd5 Nf5 Ng5
qq2N2R/p1q1r3/bnPb1BN1/BR2QN2/1n1K3Q/1R1N1bnn/3b4/k7 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Qe1 h5 Bh3 f4 Qd1 Na6 Ke1 Rb8 Qd3 Rb6 Qd2 Rf6 Qd1 Rf5 gxf5 Ba3 Bg4 hxg4 Bd2 Be7 Bc1 Bf8 Kf2 Ke7 b4 Kf6 e4 Ke5 h4 d5 c4 g5 h5 d3 h6 Kd4 b6 d2 e5 Ne7 b7 Rh7 b8Q Qc7 b5 Nb4 f6 Ba6 b6 Nc8 f7 Bd6 f8B Re7 b7 Nb6 Qa4 d1B Na3 Kc3 e6 d4 h7 d3 h8N d2 c5 Bde2 c6 d1Q Rh4 Qb3 Bd2+ Kb2 Ng6 Bd1 Nc2 g3+ Ke1 g4 Nd4 g2 Kf2 Bde2 Nh3 g1N Rh8 Bd1 Nf5 g3+ Ke1 g2 Ra3 Bde2 Nf2 Nh3 Nd3+ Kb1 Bh6 g1B Bg5 Be3 Bf6 Bd1 Kf1 f2 Kg2 Qb2 Rb3 f1N Qe8 Ng3 b8R Be2 Bdc3 Bd2 Rb7 Na2 Ba5 Ka1 Qd4 Bg4 Qe5 Nb4 Qd8 Re8 e7 f3+ Kh2 f2 Kg2 Na8 Rb5 Nb6 Qc8 Bh5 Qce6 Bg4 Qc4 Be2 Qh4 f1Q+ Kh2 Qf4 Kg2 Qc4 Nd4 Qg8 Nf5 Rd8 e8N Rd7 Qh6 Re7 Qh4 Ng5 Kf2 Bf3 Neg7 Qa8 Ne8 Be1+ Ke3 Nh3 Rc3 Qb3 Kd4 Qg8 Rb3 Bd2 Neg7 Qgd8 Ne8 Qdb8
bK2Qb2/1b1bnQ1Q/r3N3/B1RBNn2/5n2/pn1N2P1/2b2rR1/2r2kN1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Na3 fxg3 Nf3 g5 Nb1 g2 Ra5 g1N Ra2 Bb7 Ra1 Bc8 Nbd2 g4 Rb1 g3 Ra1 g2 Nb1 Qg5 Nfd2 Bh6 Nf3 Qg3+ hxg3 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 Kg4 e4 a5 b4 h5 c4 f5 e5 d6 b6 a4 e6 a3 b7 h4 c5 d3 b5 d2 b6 f4 c6 h3 c7 h2 e7 Kh3 e8Q Nc6 b8N Nh6 b7 Nf5 Nd7 Ra6 b8N Bb7 c8Q Ne2 Ne1 f3 Nd3 f2 Rg1 h1B Qc2 d1B N7e5 Ne7+ Ke6 d5+ Kd7 d4 Kc7 Rh4 Qcd7 Nf4 Bd2 Bg4 Nbc6 Rh5 Be2 f1N Ba5 Nd2 Nc3 Nb3 Kb8 Rh4 Rgc1 g1R Ra2 Kg2 Nd8 Rh2 Ne6 Re1 Bd1+ Kf1 Bf3 Rf2 Ne2 Bg2 Ng1 Bh1 Nb4 d3 Bd5 d2 Nbd3 d1B Qb1 Ba8 Rc5 Bc2 Qf7 Rc1 Qde8 Nbd4 Qb7 Nb3 Qh7 Ng8 Qbf7 Nge7 Bc4 Bhb7 Bd5 Nh4 Ng7 Bd7 Ne6 Nhf5 Rb2 Bb1 Rd2 Bc2 Re2 Rf3 Rg2 Rf2
k1b1rN2/BqQ5/2qr4/NN1q2rP/1N1rrQQK/1R1Bqq1n/2p5/3R4 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 h4 Bh3 axb6 Bg2 b5 Bf1 b4 Nf3 g5 Qb3 g4 Ng1 Be7 Qc2 h3 Qd1 Bh4 gxh4 g3 Nf3 g2 Qc2 Na6 Ng1 Nc5 Qb3 Ne4 Qd1 Ng3 hxg3 Qd4 Na3 Qd5 Nb1 Qd8 Kf2 Kd7 d4 Kc6 a4 f5 e4 b5 a5 Kb7 h5 c5 g4 f3 Kg3 h2 d5 f4+ Kh3 c3 d6 c2 e5 b3 d7 b2 g5 c4 e6 b4 g6 b3 g7 c3 e7 f2 e8N f3 Ne2 g1R Qd2 Ra6 Qf4 Ka8 Nf6 Nh6 g8Q Rg5 Ra3 Nf7 Nd5 Rd6 Be3 c1Q a6 c2 Nbc3 b1R a7 b2 Kh4 Ra1 Nb4 b1Q Bc5 Qe3 Rb3 Ra4 Nd4 Qf6 Be2 f1Q d8N f2 Nd4c6 Qfe6 Na5 Qd5 Qg7 Re8 Bd3 Qfd1 Qg6 f1R Nb5 Re1 Ne6 Q1f3 Nf8 Re2 Rd1 h1Q+ Qh2 Qhg2 Qf4 Qb2 Qge4 Qc3 Bb6 Qcc6 Qg4 Qb7 Qef4 Qdc6 Bc5 Qfd5 Bd4 Qgf3 Qe4 Rd2 Qef5 Nh8 Bf1 Qba6 Nd3 Rb4 Bc5 Rbe4 Nb4 Rdd4 Bd3 Qab6 Nc4 Kb7 Qe5 Nf7 Qef4 Qa6 Bb6 Rf5 Bc5 Ng5 Bb6 Nh3 Bc5 Bd7 Na5+ Kc8 Bb6 Rg5 Bc5 Qab6 a8Q+ Qb8 Qa7 Bf5 Qg7 Qbb7 Bb6 Kb8 Qc7+ Ka8 Ba7 Bc8
2qR1nr1/rr2N2q/2r4k/2Q1q3/1nB1qRPp/1KBQ4/3N1r2/1N1R1qR1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 Ba3 g5 Kc1 b6 Kd2 Bd6 Bc1 Bb7 Kd3 Bf3 Kd2 Bg4 h3 f3 Bg2 Bf4+ gxf4 Bh5 Bf1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 a4 Kf7 c4 Kg6 Kc2 d5 e4 h5 e5 h4 c5 b3+ Kb2 d3 c6 g2 c7 b5 c8N b4 e6 d4 a5 d2 e7 d3 e8R Ra7 a6 Nd7 f5+ Kh6 f6 Ne7 f7 Nf8 Qe2 Nc6 Na3 Rg8 Re3 d1R Nh3 g1Q Rb1 d2 Ra1 Qg2 Ne7 Qc8 Rg1 Qh2 Nb1 Qe5+ Rc3 Re1 Ng5 d1Q Qc4 Qd3 Bd2 Qh7 Qd3 Rc1 Be2 f1Q Ne4+ Qg5 Rc2 f2 Bc3 Qe5 Ned2 Qhe4 Qh3 Qh7 Bc4 Qhe4 Qd3 Qh7 Ra4 Qhe4 Ka1 b2+ Ka2 b3+ Ka3 Re1 Rc1 Nb4 Rd1 Re3 Ng6 Rf3 Ne7 Rf6 Bd5 Rc6 Bc4 Rb7 a7 Qh7 a8Q Ra7 Qb8 Qhe4 Qb6 Qh7 Qc5 Qhe4 Ra5 Qh7 Ka4 Qhe4 Na3 b1R Ra6 b2 Kb3 Qfe1 Rb6 f1R Rb8 Rf2 Ra8 Qf1 Rb8 Ra1 Nab1 Rb7 Ra8 Raa7 Rb8 Nd7 f8R Qh7 Rf7 Nf8 Rf4 Qcf5 Rd8 Qc8 Na3 b1Q+ Bb2 Qa1 Nab1 Qee4 Bc3 Qa5 Rg2 Qac7 Rg1 Qce5
1B1Qqq1N/4b3/2rqQ1Nr/1QbbNp2/4rP2/2kN4/4RBr1/3qr1RK w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 d5 b5 d3 b6 d4 Ne2 Na6 Ng1 axb6 Kd2 b5 Ke1 b4 g4 h5 g5 f5 Be2 Nc7 Bg4 Nd5 exd5 Nf6 gxf6 hxg4 Kf1 Kd7 Kg2 Kd6 a4 Ke5 h4 g5 c4 b5 h5 g3 d6 g4 f3 d2 f7 d3 h6 Kd4 d7 e5 f4 e4 h7 b3 c5 e3 c6 b4 a5 e2 c7 e1B a6 b2 a7 b3 Ra6 Bc5 f8Q Bb7+ Rc6 Rc8 a8Q Qe8 Qe2 d1Q d8B d2 Nc3 b1R Na2 b2 Nb4 Kc3 Qb8 Ra1 Qe4 b1R Nd3 Rb4 Qe6 Re4 Nf3 Ra2 Rd6 Bd5 Rg1 Rc2 Kh1 g2+ Kh2 Ra2 Nfe5 Bh4 Qb5 Rc2 Ra6 Rb2 Ra2 g3+ Kh3 Rb1 Be7 Rb2 Bd6 Rc2 Qfe7 Qf8 Ba3 Qh5 Qd8 d1Q Bc1 Qhe8 Be3 Re2 Bf2 Re1 Rh1 g1R Re2 g2 Kh2 Rg8 h8N Rg6 Ng4 Rh6 Nge5 Rb8 c8N Rb6 Bc7 Rc6 Bb8 Qd6 Ne7 Qf8 Rb2 Qh5 Rd2 Qhe8 N7g6 R1e2 Rd1 Rge1 Rg1 Ra2 Rd2 Rc2 Rh1 Rb2 Re2 g1Q+ Kh3 Qg4+ Kh2 Rd2 Rg1 Qf3 Re3 Qd1 Kh1 Ra2 Bg3 Rf2 Re2 Rg2 Bf2 Be7+
2nb2b1/1q3q2/bB1R1qp1/K2BkN2/2RRB1b1/8/Q2qr1P1/2bQNR1b w - - 0 1 legal: proof: b4 a5 e4 b5 h4 f5 a4 fxe4 d4 c5 h5 cxd4 h6 g6 Rh5 Na6 Rc5 Nc7 Rg5 Ne6 Rh5 Ng7 hxg7 Rb8 Rh4 axb4 Rh1 b3 Qf3 b4 Qd1 Rb5 axb5 Ba6 Rh2 Bb7 Rh1 Bc8 Kd2 Kf7 f4 Ke6 c4 d5 b6 h5 f5+ Ke5 c5 e3+ Kd3 b2 f6 h4 f7 b3 b7 h3 b8R e2 c6 e1Q c7 h2 Rb4 Qf2 Be2 Ba6+ Kd2 d3 Kc3 d2 Bb5 d4+ Kc4 d3 Nc3 b1B c8B b2 Bg4 Ba2+ Qb3 d1B Nce2 b1Q Ng3 d2 Bf5 Bg4 Be4 d1Q Be3 Q1d2 Nf5 e6 Ra4 Ba3 f8R Ne7 g8Q Bc1 Rf6 Nc8 Bb6 Rh3 Qf7 Re3 Bd5 Re2 Nf3+ Kf4 Rf1 h1B Qg8 e5 Ne1 e4 Rd6 e3 Kc5+ Ke5 Rc4 Qd7 Bbc6 Qf7 Qd1 Qh4 Be4 Qhf6 Rcd4 Be6 Raa4 Qb3 Rac4 Qb7 Qd8 Bg8 Bcd5 Qbf7 Ba5 Qb8 Bb6 Qbb7 Qd7 Rf2 Q7a4 e2 Nc2 e1B Qa2 Qb8 Kc6 Re2 Kc5 Bh4 Ne1 Qdg5 Kb4 Qbb7 Ka5 Qd2+ Rb4 Q6e6 Rc4 Bd8 Rd4 Qef6 Rc4 Qdg5 Rd4 Qe3 Rbc4 Qd2+
1B1r2k1/N3P1r1/1n2qn2/3B1n1B/4N1qR/1prR1q2/4r2Q/K1RBnQ1n w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 Ba3 g5 Kc1 b6 Kd2 Bd6 Bc1 Bb7 Kd3 Bf3 Kd2 Bg4 h3 f3 Bg2 Bf4+ gxf4 Bh5 Bf1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 a4 Kf8 c4 d5 Kc2 h5 Kb2 b3 e4 h4 a5 g2 e5 d3 e6 b5 f5 b4 g5 d2 a6 d4 c5 h3 a7 h2 e7+ Kf7 c6 d3 f6 Qd6 c7 Nd7 c8Q Qe6 Qc7 Rd8 a8B Rh7 Bd5 Rg7 Ne2 g1N Nec3 Nb6 Be2 f1Q Nb5 f2 Na7 Nf3 Nc3 Ne1 Ne4 Qg1 Ra4 f1N Ka1 Ng3 Qf4 Nf5 Bh5+ Rg6 Qc2 d1Q Qf1 Qf3 Bf4 d2 Bb8 Qgg4 Rg1 h1N Rg3 Qg2 Rd3 Q2f3 Qc7 Rc8 Qh2 Rc3 Nb5 Ngh6 Na7 Kg8 f7+ Kh7 f8R d1R+ Kb2 Rg7 Rc8 Ng8 g6+ Kh8 Rc4 Nf6 Rc5 Rd2+ Ka1 Kg8 Rc6 Re2 Rc5 Rf7 g7 Rf8 Rc7 Rd8 Rc4 Kh7 g8B+ Kg7 Kb1 b2 Ra1 Kh8 Ka2 Kg7 Rc1 Kh8 Bgf7 Kh7 Be8 Kg8 Ba4 b1R+ Bc2 Rb2+ Ka1 b3 Bd1 Rg2 Nf2 Rd2 Rf4 Re2 Ne4 Qgh3 Rh4 Rg7 Be5 Qhg3 Bb8 Qgg4
5r1k/QB1qP3/B2BqNnB/1p1Rn1Rq/r3n1r1/3N2Q1/2Kq4/r4rQ1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 Ba3 g5 Kc1 b6 Kd2 Bd6 Bc1 Bb7 Kd3 Bf3 Kd2 Bg4 h3 f3 Bg2 Bf4+ gxf4 Bh5 Bf1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 a4 Kf7 e4 Kg7 c4 d5 c5 h5 f5 b3 g5 g2 e5 b2 e6 d3 c6 h4 a5 h3 c7 d4 c8B h2 a6 Qe8 g6 Nd7 a7 Ne5 Nc3 b1R Ne4 Ne7 Nf6 Rf8 Ra5 Ra1 Nh3 g1R Nf4 Rg4 Rd5 Kh8 Rg1 h1Q Bb7 Qh5 Ba3 Qc6 Bd6 Qc4 Be2 f1R Qe1 Qc8 Qg3 f2 Rg2 N7c6 e7 Qe6 Ng8 Ra4 f6 Raa1 f7 b5 Ba6 Ra4 Nf6 Raa1 Bd1 Ra4 Kc1 d2+ Kc2 Ra1 Bf3 d1Q+ Kb2 Ra4 Nd3 Qd2+ Kb3 Rd1 Be4 f1N Rg1 Rda1 Bh1 Rae8 a8Q Rc8 Qa7 Rb8 Qe3 Ng3 Rg2 Ne4 Qg1 Rf1 Rg3 Ra8 Bg2 Rfe8 f8B Red8 Bh6 Rf8 Ne1 d3 Bf3 Rf4 Rg5 Rg4 Bg2 Qa5 Bf3 d2 Nd3 d1Q+ Kb2 Qc7 Qg3 Qe1 Kc2 Qb4 Ne8 Qcd7 g7+ Kh7 Qgg1 Ng6 Qg3 Kg8 Qgg1 Nce5 Nf6+ Kf7 Bh1 Qd2+ Kb3 Rac8 Ne8 Kg8 Rf5 Nf2 Bg2 Rgc4 Rd4 Raa1 Bgb7 Rca4+ Rd5 Nh8 Nf6+ Kf7 Rg5 Rcc4 Rg2 Rf4 Nh7 Ne4 g8Q+ Ke8 Qg5 Kf7 Nf6 Nhg6 Rg3 Rh4 Q5e3 Rhf4 Rg5 Rh4 Qeg3 Rg4 Ne8 Kg8 Nf6+ Kh8 Q1e3 Qe2 Qeg1 Qe3 Kc2 Qd2+
1Q6/1bQPbqrK/3QpN1N/2b1R1b1/Bqk2BQ1/1r4r1/q3R1B1/1q1b4 w - - 0 1 illegal: No possible last move, all moves rejected
RK1N4/n2b2NB/kB5r/P6Q/1b2bn1n/bn1Np3/3QnB1b/3Rb2N w - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 f4 dxc4 b4 a5 f5 axb4 h4 b5 g5 Qd5 Bh3 Kd7 Bf1 Qf7 g6 Ra3 gxf7 g5 Qf3 g4 Qb3 Ra6 Qf3 Rg6 Qd1 Rg5 hxg5 Bb7 Rh3 Ba6 Rh1 Bc8 Kf2 Kc6 Ke3 Kb7 Kd4 h5 Kc5 e5+ Kd5 c5 d4 c3 a4 b3 a5 e3 f6 c2 g6 b2 g7 c4 Qd3 b4 Ne2 h4 Ng1 g3 Qd1 c3 Rh3 b3 Bd2 c1N Bd3 e4 Be1 g2 Qd2 c2 Nf3 g1B Ne5 e2 Bf2 e1B Nc3 b1B Ne2 e3 Ng3 b2 Bh7 Bb4 f8B Nb3 f7 c1B Bc5 Be4+ Kd6 b1N f8N Nc6 d5 Bh2 Nd3 Nge7 g8Q Nc3 Qg6 Ka6 Kc7 Nf5 d6 Bd7 Qh5 Bca3 Ne6 Na7 Bb6 Ne2 Nh1 Nf4 Rg3 h3 Rd1 Nh4 Rg8 Nhg6 Ng7 Nh4 Bg6 Rh6 Bh7 Bg1 Ra8 h2 Ng3 h1N Kb8 Bc8 d7 Bh2 d8N Bd7 Bg1 Nf2 Nh1 N2h3 Bf2 Ng1 Qc2 Nge2 Qc3 Rg6 Qd2 Rh6
1BR2b1k/b2pbQ2/b7/rN1R1R2/Nb1rrPR1/4Qqrb/4r3/K1Q4B w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 d4 cxd4 b3 a5 b4 axb4 h3 Nh6 h4 Na6 Bh3 Nc7 Bf1 Ne6 Nh3 fxe4 Ng1 Nf5 gxf5 g4 Kf2 Rg8 Ke1 Ng5 hxg5 Rh8 Kd2 Kf7 a4 Kg8 c4 h5 Kc2 b5 Kb2 e5 c5 b3 a5 d3 c6 e3 f6 b4 c7 h4 a6 h3 g6 d2 a7 h2 g7 e2 Nh3 e1B Ng1 g3 Qc2 d1R Bd3 g2 Ra3 e4 Be3 Bh4 Qc1 Ba6 Bb6 e3 c8Q e2 Qe3 e1B Be4 Rd4 Nf3 g1B Ka1 b2+ Ka2 Rh7 Nc3 b1R Bc7 Rb2+ Ka1 b3 Bb8 Re2 Na4 Beb4 Qcc1 Qa5 Ra2 Qd5 Rd2 Bg5 Rd3 Rh3 Rd1 Bf2 Rhg1 h1R Rg4 Rhe1 Rd2 Rg3 Rd1 Qf5 f7+ Kh7 g8R Bge7 R8g5 Kh8 Rh5+ Qh7 Rf5 Qh5 Rd3 Rd1 Bb7 Re4 Nd4 Rdd2 Nb5 b2+ Kb1 Rd1 Rdd5 Rdd4 Ka2 b1B+ Ka1 Re6 Bc6 Be4 Bb7 Bg2 Bc6 Ree4 Bb7 Bh6 Bc6 Bh3 f8Q+ Kh7 Qf7+ Kh8 Bb7 Bhf8 Rd6 Re6 Bh1 Ree4 Rdd5 Bg1 Rg6 Qf3 Rg4 Bf2 Bd6 Rc8 a8R Rc5 Rc8 Bg1 Bb8 Bf2 Na3 Ra5 Nb5 Rd3 Qed2 Ba7 Qe3 Rdd4
1Q1R1rBB/q1n1n1r1/1P4Nq/4Nkrr/nnRn4/3NK1p1/1B2B1n1/4Q3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 a5 e5 g3 exf4 a6 f3 Kd2 f2 Ra4 bxa6 Ra3 a5 Ra1 a4 Ra3 g5 Bg2 f4 Bf1 Bd6 Ra1 Bb7 Qe1 Bf3 Qd1 Bg4 h3 f3 Nc3 Bf4+ gxf4 Bf5 Nb1 g4 Na3 g3 Nb1 Bg4 hxg4 Qc7 Nh3 Qb6 Ng1 Qd8 c4 Ke7 b4 Ke6 e4 a5 c5 d5 b5 h5 e5 h4 c6 d3 g5 d4 b6 a3 g6 a4 c7 a2 c8Q+ Qd7 g7 a3 Qb7 h3 Qc2 h2 Qbc6+ Kf5 e6 Ne7 g8B Qa7 Q2c3 Rh5 Qb7 Na6 Bb2 Nc7 Be2 f1R Nh3 Rf8 Qb8 f2 Rg1 Rc1 Rd1 f1R Nf2 h1Q Qb4 Rc4 Nc3 Rc5 Rac1 a1N Nd5 a2 Rc4 Nc2 Qc3 a1N Qa5 Ng6 e7 Nb4 e8N Ne7 Nef6 Nac2 Nd7 Rf7 Ne5 Rg7 Ng6 Rg5 Nf6 Qh6 Nd7 Rb5 Nde5 Rd5 Qa3 Ra5 Qc3 Rd5 Kc1 Rb5 Qe1 d2+ Kb1 Ra5 Nfd3 Ke4 f5 Rf4 Nc1 Rh5 Nc6 Rd5 Rc3 d3 Rc4+ Rd4 Nce5 Rg4 Rc3 Rgg5 Rc5 Rd8 f6 Rh7 f7 Kf5 Rc4 Rg7 Ba3 Re8 Kb2 Rf8 Kc3 Ne3 Kd4 Ng2 Bb2 Nc8 Nb3 Ne7 Rb1 d1N Nc5 Nc3 Rd1 Na4 Rd2 Re8 Rd1 d2 f8B Rf7 Bg7 Ref8 Bh8 Rg7 Rdc1 d1N R1c2 Nf2 Rd2 Nh3 Rd3 Ng1 Rd1 Nf4 Ke3 Nf3 Rd8 Nd4 Ncd3 Ng2+
1R1b1N1r/1b1P1Kr1/1Q3N1b/1R1rQB2/3Q2qQ/p1R3r1/r1rb2k1/4B1q1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 c5 exf4 c6 f3 Ra2 dxc6 Ra3 c5 Ra1 c4 Qc2 g5 Qb3 f4 Qd1 Ne7 h3 Nf5 gxf5 Nd7 h4 g4 Ra2 Nf6 Ra3 Ne4 Ra1 Ng5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 Kf2 Kd7 d4 Kc6 e4 a5 b4 h5 g6 c3 e5 Kd5 b5 Ke4 f6 c5 f7 a3 b6 h4 b7 h3 b8Q a2 d5 h2 d6 a4 g7 c4 g8Q c2 d7 c3 e6 Qg5 e7 Bh6 f8Q Bb7 Bd2 c1R Qf6 c2 Ne2 a3 Bg2 Ra5 Qge8 Rd5 Be1 Rg8 Rg1 h1R Nd4 Rg7 Ne6 Rh3 Qd6 Rg3 Qb6 Qh4 Bh3 Qh5 Kf1 f2 Ke2 f1R Nf8 Qf5 Rg2 Rh1 Qh4 f3+ Kf2 Qg6 Nc3+ Kf4 Rb1 a1B Ne4 Bf6 Rb3 Ra1 Rd3 c1B Rc3 Bd2 Rh2 Bfg5 Nf6 Ra2 Qa4+ Qe4 Qeh5 Qc4 e8R Qb4 Rb8 Qc4 Ne8 Bd8 Nf6 Qb4 Rg2 Qe4 Qad4 Rh2 Kf1 Rc2 Re2 f2 Ree3 Rh1+ Ke2 f1R Rb3 Ra2 Rb5 Rfg1 Kf2 Rc2 Rc3 Ra2 Bf1 Rhh3 Bd3 R1g2+ Kf1 Kf3 Qhe5 Qf4 Bc2+ Be3 Bf5 Rgc2 Bd2 Rh2 Ke1 Kg2 Ke2 Rhh3 Kd3 Rh1 Be1 Bd2+ Kc4 Rc5+ Kb3 Rgh3 Kb4 g3 Kb3 Kh2 Ng8 g2 Qhf6 g1Q Qg5 Rg3 Nf6 Kg2 Kb4 Rh5 Qh4 Qg4 Kb3 Bhf4 Kb4 Rd5 Kc4 Rd6 Kc5 Rh8 Kc4 Rc6+ Kd5 Rc5+ Kd6 Rd5+ Ke6 Rg6 Kf7 Bh6 Rbc8 Rgg8 Rb8 Rg7+
R1RK4/2rQ4/1rBn3n/bRR2pk1/n6N/bpbQ2qB/6P1/B1q2q1N w - - 0 1 legal: proof: f4 b5 e4 g5 h4 gxh4 b4 a5 d4 axb4 f5 Ra6 d5 Rf6 e5 d6 c4 Kd7 exd6 Rxf5 c5 Rf2 Qd4 Ba6 Qd1 Ke8 Qd3 Bg7 Qe4 Kf8 Qg4 Bc8 Qd1 Bd7 c6 Bh6 cxd7 Kg7 Qe2 Kf6 Qd1 Bf8 a4 c5 a5 e5 a6 h5 a7 e4 a8B c4 Ra5 e3 Qd2 h3 Ne2 b3 Qc3+ Kg5 Ng1 f5 Ba3 b4 Bb7 h2 Ne2 b2 Rc5 h4 Nd2 b1N Qd3 c3 Bc6 h3 Ng3 e2 Bb2 c2 Ba1 Qc7 d8R c1B d7 Na3 d6 Na6 Rc8 Nh6 d8R Bb2 d7 Nb5 Ra8 Rg8 Rdc8 Nd6 d8Q+ Bf6 Qe7 Rg7 Qd7 Bc3 Rg1 Rf4 Nh1 b3 Rb5 Rh4 Kf2 e1B+ Kf3 Nc5 Be2 Na4 Ke3 Rc4 Bg4 Rg6 Rf1 Be7 Rf4 Rc5 Rc4 Ba5 Kd4 Qb8 Bb7 Rc7 Kd5 Bf8 Rcc5 Be7 Nc4 Bec3 Ne5 Rf6 Ng6 Re6 Nf2 h1Q Nh4 h2 Bc6 Qc1 Bh3 h1Q Qd1 Qe3 Qd3 Qf1 Nh1 Rg6 Ra7 Qec1 Ra8 Bef6 Ke6 Bb2 Rf8 Bfc3+ Ke7 Ba3 Rc8 Nb7 Bd5 Rb6 Bc6 Nd6 Kd8 Qb7 Bf3 Qd5 Be4 Qe5 Bc6 Qg3
1b6/1B2q1q1/3rbk1N/q2BpP2/QQ1bR1B1/2NnpRB1/n3K3/rQ4r1 w - - 0 1 legal: proof: b4 a5 g4 f5 a4 h5 e4 fxe4 d4 hxg4 bxa5 b5 axb5 c5 Bd2 cxd4 Bf4 Nf6 Bc1 Ng8 h4 Kf7 f4 d5 c4 g5 c5 e5 a6 d3 f5 d4 a7 g3 c6 g2 h5 d2+ Kf2 d3 c7 g4 b6 Nd7 h6 Nc5 h7 Ne7 b7 Kf6 b8Q Nc6 Rh4 Be6 c8B Rg8 Nf3 Bd6 Ng5 Nb4 Be2 Qe7 Ra3 g1B+ Kf1 g3 h8Q+ Rg7 Qe8 Bf2 Qbb5 Bb8 Nf7 Bg1 Qe1 d1Q Bb7 d2 Nh6 Qa4 Bf3 d1R Bf4 g2+ Ke2 Rg3 Re3 Rg4 Nc3 Ra1 Qd1 Ncd3 Qb1 Na2 Q5b4 Qa5 Qea4 Bf2 Bh2 g1Q Bd5 Rg3 Bh5 Rg5 Rf3 Bd4 Rhf4 e3 Re4 Rg8 Bb7 Qg6 Bf4 Qgf7 Bd5 Rg3 Bg4 Rg1 Bg3 Qg7 Bb7 Bd6 Bd5 Rd8 a8B Bb8 Bab7 Rd6
k1b1r1qb/q4B2/q3n3/npb1QK1P/1Q1RN3/2r1pB1Q/4r3/1BRQ1N2 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 h6 g4 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 b5 Ke4 c5 a4 Kc7 d4 Kb7 h4 e5 f6 b3 d6 b2 f7 g4 h5 f3 d7 f2 g7 g3 d5 g2 a5 c4 d6 c3 Nh3 g1Q Bd3 f1Q Nd2 b1R Ng5 c2 Rh4 Rb3 Rc1 Ne7 g8B Qf6 Nf1 Nbc6 a6+ Ka7 Qf3 Na5 Qh3 Nec6 Rf4 Qdb6 d8Q Nd4 d7 Ne6 Qe8 Rc3 d8Q Bc5 f8Q Qe7 Kf5 e4 Qd5 e3 Bf7 Qg3 Ne4 Qg8 Qed7+ Kb8 Qdd8 Qea7 Qd4 Qc6 Qb4 Qcb7 Qg7 Qbb6 Qe5+ Qd6 Re1 c1B Bb1 Bb2 Rc1 Qg4+ Kf6 Re8 Qd7 Qg8 Kf5 Qdc7 Qd2 Qd6 Qd1 Qb7 Nf2 Ra3 Qbc3 Nb3 Qb4 Qe7 Qee4 Bh8 Qed4 Ra2 Qa1 Re2 Qe5 Ra7 Rd4 Rd7 a7+ Ka8 Rd5 Na5 Ne4 Qa6 Rd3 Rd4 Rd2 Rc4 Rd4 Kb7 a8B+ Ka7 Nf2 Rc3 Bf3 Qc7 Ne4 Ka8 Bd3 Qe7 Bb1 Qea7
2R1nbqq/1QB1p1p1/QK3NN1/n1Q2N2/6B1/b4rP1/1kb1R3/2n1N1rq w - - 0 1 legal: proof: c4 h5 a4 d5 cxd5 b5 axb5 h4 Ra3 h3 Ra6 Bf5 Ra1 Bc8 e4 f5 g3 fxe4 f3 exf3 Qe2 Bf5 Qf2 Bc8 Qg2 hxg2 Kf2 Kf7 Ke3 Kf6 Kd4 a5 Kc5 Ke5 h4 a4 d4+ Ke4 b4 c6 b6 a3 h5 a2 b7 f2 d6 Ra3 b5 Rh6 b6 Qd7 d5 Qe8 d7 Rb3 d8N Bg4 d6 Rb4 d7 Re6 h6 Rb3 h7 Rf6 h8N Rf7 Nf3 g1Q Ng6 Qh2 Ne6 Qh8 d8Q Nf6 Ned4 Bf5 Bh3 Kd3 Qc8 f1Q Nc3 Rb1 Rh2 Qh1 Bf4 Rg1 Rc1 a1B Bg4 Bb2 Ne4 Qd8 Rc4 Ne8 Re2 Qd7 Be5 Qe6 Qc7 Rf6 Qc8 Qeg8 Rc1 Rd6 Nf6 Re6 Bd6 Re3 Rcc2 Be4 Nf5 Bc1 Qe6 Bb2 Qa2 Bc1 Rc4 Bb2 Qa6 Ba3+ Rb4+ Kc3 Ne1 Rf3 Bf4 Bc1 Rd4 Bb1 Rd8 Kb3 Bc7 Ba3+ Kd4 Bd3 Rc8 c5+ Ke5 c4 Kd4 Nd7 b8Q c3 b7 c2 Qba7 c1N b8Q+ Nb6 Qba8 Bc2 Q8b7 Bb2+ Kc5 Ba3+ Kb5 Nc4 Qc5 Na5 Kb6 Kb2
Nr1BNQb1/n1qpQ3/5Bq1/2Q3K1/1pn1P3/2Rbn3/Q1N3R1/3rbkq1 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 d4 c5 b4 cxd4 Bh3 f5 gxf5 axb4 Bg4 hxg4 Kd2 b3 c4 Ke7 a4 b5 h4 g5 e4 g3 e6 Kf6 a5 Ke5 c5 Kf4 c6 g2 a6 Kg3 a7 Kf2 e7 d3 e8N g4 h5 b2 c7 g3 f6 b4 h6 Be7 h7 Bf8 f7 Be7 f8Q+ Nf6 Rh3 Bb7 c8Q Bd5 Nc3 Rg8 h8B Rg6 Rh6 b1B Nf3 Ng4 Rh2 Ne5 Na4 Rd6 Ra3 Nbc6 Rc3 Bh4 Nb6 Rb8 a8Q Bg8 Qa2 Na7 Na8 Bc2 Qc6 Qc7 Ne1+ Kg1 Ke3 d2 Kf4 Nc4 Qg4 d1N Qgg7 Kf1 Qc5 Bb1 Kf5 Bc2 Bg5 Nde3+ Kf4 Rd1+ Qge5 Bd3 Nc2 g1Q Be7 g2 Bhf6 Be1 Bd8 Qh1 Qce7 g1Q Rg2 Qh7 Kg5 Qf7 Q5c5 Qg6+
nq1rb1Qn/R1p3q1/2K3p1/BNN1r2k/1NN1Q2b/3rPnRB/8/Q1b5 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 f5 d4 Kf7 h4 Kg6 e3 g3+ Kf3 b3 h5+ Kh6 b6 b2 d6 g6 d7 g2 d5 Ba3 b7 Qf8 d8N Ra5 d6 Qg7 d7 Re5 Nd2 b1Q Ne2 g1B Nd4 Bf2 N8e6 Bh4 d8Q Bd7 Rh3 Be8 Nc5 Nd7 b8N Nb6 Qa4 Na8 Nba6 Qb8 Nc4 Bb2 Bd2 Bc1 Qd5 Kg5 h6 Kh5 h7 Nh6 Ra3 Nf7 Rg3 Rg8 Qb3 Nh8 Qe4 Rf8 Nb4 Rg8 Ke2 f3+ Kd3 f4 Ra7 f2 Bh3 f1R Nb5 f3 Kd4 f2 Qa2 Rh1 Qa1 f1N Bc3 Nh2 Be1 Re7+ Kd5 Nf3 Bc3 Rd7+ Kc6 Rhd1 Be1 R1d3 Bd2 Rf8 Bc3 Rf5 Be1 Re5 Bc3 Nf7 h8Q+ Qh7 Qg8 Nh8 Na2 Qf7 Ba5 Qg7 Nb4 Rd8+
1RQ1N1K1/3NrB1N/3pPB2/4p1n1/rQ1r2Qn/6q1/Q2brk1n/2Rb1r2 w - - 0 1 legal: proof: d4 h5 a4 b5 axb5 e5 f4 Nf6 g4 Ng8 gxh5 Qe7 d5 Qd8 d6 cxd6 e4 Ne7 Qd4 exf4 e5 Ng8 e6 Na6 Qc3 Nb8 Qe5 dxe5 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kd4 b4 a5 c4 g5 h4 g4 c5 g3 b6 f3 c6 a4 b7 f2 b5 a3 b6 a2 c7 d6 h6 f6 Kg6 f5 Kf7 g2 h7 f4 h5 f3 h6 Nd7 b8N Qg5 b7 Qg3 Be2 f1R Na3 f2 Nb5+ Ke4 Rb1 a1R Bh5 R1a4 Bg5 R8a7 Bf6 Ke3 Nf3 g1R Ng5 Nc5 Nd7 Rg2 b8Q Bb7 c8Q Ne4 Nc7 Ne7 Ne8 Nf5 Rb2 Ba6 Qb4 Be2 Rg1 Rg8 h8Q Bd1 h7 Bh6 Qg7 Nh4 h8Q Rc7 Nh7 Ng5+ Ke7 Rc4 Bf7 Rd4 Qg6 Rg7 Kf8 Rh2 Qb1 Kf3 Qg8 Ke3 Qa2 Rg2 Bg6 Re7+ Qg7 Re1 Bf7 f1N Rb1 Nh2 Kg8 Rf1 Qg6 Rgf2 Qf5 Re2 Qg4 Kf2 Rc1 Qb3 Rg3 Qa3 Rgc3 Qb3 Rc5 Qg3 Rb5 Ne4 Rb7 Bd2 Rb8 Ng5
3Q4/NbB2n2/p7/1b1qnQpB/b2rQ2Q/1bRr4/2N3KP/n1k1bR1R w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 Kf2 Ke7 e4 Kf6 d4 Kg5 e5 f5 b6 b3 d6 a6 b7 b2 e6 g3+ Kf3 g2 e7 Rh3+ Kf2 Nh6 e8R Nc6 b8Q Nf7 d5 Nb4 d7 Bb7 d6 Rd3 Qd2 Nc2 Nc3 b1B Nd1 Ba2 Re7 Bb3 Ra5 Na1 Ne2 g1N Nec3 Nf3 Qe1 N3e5 Ne3 f3 Nc2+ f4 Be2 g6 Kf1 f2 Rc5 Kf5 Nb5 Ke4 Kg2 g5 Qc8 Qa5 Qe8 Rd8 Rc3 Qa2 Na7 f1B+ Kf2 f3 Bf4 Bg7 Re6 Ba4 Rf6 Qd5 Kg1 Bh3 Qh4 Be6 Kf1 f2 Kg2 Rd4 Bh5 f1B+ Kg3 Ra8 d8Q Bfb5 Qdd7 Rd8 Kg2 Rd3 Qc8 Bf8 d7 Bb4 Rc6 Be1 Rc3 Qc6 Rf5 Beb3 Qe6 Qd5 Qa8 Rc8 d8Q Rc4 Qed7 Ng4 Bc7 Rcd4 Qh3 Nge5 Rff1 Nh8 Qg3 Nhf7 Qh4+ Ng4 Qac8 Qc5 Qf6 Qe5 Qcd8 Qd5 Na3 Ke3+ Qf3+ Kd2 Qe4 Nge5 Nc2 Kc1 Qdg4 Rc4 Qf5 Rcd4
r3b1nB/6Pp/3q3k/2nbQ1rN/N2B1QQ1/p2nQ3/2nR1K2/r3nR1B w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 b4 Kf8 e4 Kg7 c4 f5 c5 a5 g6 d5 c6 d3 e5 a4 c7 f4 e6 g2 e7 d2+ Kf2 d4 e8Q a3 b6 f3 b5 d3 b7 Nd7 b8B Nc5 b6 Qd6 b7 Bd7 Qde2 d1B c8Q d2 Ba7 Bb3 b8Q Bd5 Nh3 g1N Q8e3 Be8 Rh2 d1R Qe1 Ne2 Bg2 Nf4 Bh1 Kh6 Bb2 Rc1 Nc3 g3+ Kg1 g2 Na4 Rd1 Kf2 g1N Qg4 Rb1 Q1c3 Rc1 Qce5 Rd1 Kg3 f2 Bc3 f1N+ Kf2 Nf3 Rb1 Ne6 Bad4 Nc5 Rg2 Re1 Rd1 Ra5 Rg1 Rb5 Rd2 Ra1 Bb2 Ne1 Qc7 Nh2 Rf1 Nc2 Qf7 Bc4 Qff5 Bd7 Qef6 Nf3 Nb6 Nfe1 Bdc3 Na6 Na4 Ne7 Be5 Ba2 Bbd4 Ra8 Q6e6 Rc5 Bh8 Ng8 Q6e4 Rb5 g7 Be8 Qf7 Rh5 Qe5 Rg5 Qff5 Nc5 Qfe4 Ng6 Nf4 Bd5 Nh5 Nf4 Qe4f3 Ne2 Qf7 Nc1 Qff4 Nc1d3+
1Kq1r3/1N1Rb1p1/1k2br1Q/5b1p/2B2R1B/Q1P3B1/bnR1nN1r/1Rb5 w - - 0 1 illegal: No possible last move, all moves rejected
4N1R1/3b1Q2/1r1NbnnB/k1B2b2/1n1rRpP1/2K1p3/3qr2R/2bN1NQ1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 f4 e6 f5 exf5 e4 Qd6 e5 Qd7 Bd3 Qd8 Be4 fxe4 d4 Kd7 Kd2 h5 g4 a5 b4 f5 b6 c5 d6 Kc6 d5+ Kb5 b7 h3 e6 c4 e7 f4 e8Q+ Nc6 b8N c3+ Kc2 h4 d7 h2 d6 e3 Ra2 a4 Qe7 a3 Qd4 h3 Qf7 Ne5 Nd2 Qa5 d8B Ra6 d7 Nf6 Nf1 Ng6 Qd1 Rb6 Na6 Rh5 Kb3 c2 Kc3 Rd5 Ne2 Rd4 Nc7+ Ka4 Rb2 a2 Ne8 a1N Qe1 Qa7 b5 Ba3 Rb4+ Ka5 Bb2 Qa8 Be7 Qd5 d8N Bf5 Qg3 Qa2 Bc5 Be6 Qg1 Bf5 Qb3 Bd7 Nf7 c1R+ Qc2 Be6 Nfd6 Re1 Qb3 Nc2 Ba1 Bf5 Qf7 Bc1 Rc4 Nb4 Bb2 Rc6 b6 Be6 b7 Rb6 b8R Bd7 Neg3 Re2 Nge4 Be6 Nf2 Bd7 Qg2 Bf5 Nd1 Be6 Rg1 h1B Qh2 Bf3 Rh1 Bc6 Qg1 Bcd7 Rh2 Bf5 Ng7 Bde6 Rg8 Bd7 Nge8 Bde6 Rf2 h2 Ba3 h1B Rh2 Rd5 Re4 Rd4 Nb5 Bf3 Bf8 Bd7 Nbd6 Bfe6 Bh6 Bf5 Re6 Bd5 Re4 Bd5e6 Nf2 Na6 Bc5 Nb4 Nd1 Qd2+
4kn2/1B2n2Q/Q1nB2r1/bNq1Bnr1/3Np1P1/pR5b/3R3K/2b2BNr w - - 0 1 illegal: No possible last move, all moves rejected
3rR3/2pQ4/3qp2n/2PN2rR/2Rb1Qrn/2R1BKn1/N2b3Q/1nbk3B w - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f3 dxe4 h3 exf3 Bd3 g4 Bc4 g3 Bf1 Bg4 hxg4 fxg2 Ke2 Kd7 b4 Kd6 c4 Ke5 d4+ Ke4 d5 h5 c5 a5 g5 f5 d6 h4 g6 h3 b6 a4 g7 e6 b7 f4 b5 h2 d7 f3+ Ke1 f2+ Ke2 a3 b6 a2 Be3 Rh4 Qc1 Nh6 g8Q Nc6 b8R Ne7 b7 Nef5 Qh8 Rg4 Nh3 g1R Bf4 g2 Be3 Nh4 Nf4 Be7 Rc8 Bg5 b8R Qe7 d8Q Qd6 Nd5 Bf4 Bd4 Bd2 Qd7 Rg5 Rb6 Rb8 Rf8 Rd8 Re8 Rg4 Be3 Rg5 Kd1 Kf3 Nbc3 Rg4 Rab1 a1B R6b3 Bb2 Na2 Ba3 Qc4 Bac1 Rc3 Rg5 Rb4 Rg4 Kc2 Rg5 Bd3 f1N Qcd4 Rg4 Be4+ Ke2 Rbc4 Ke1 Kd3 Kd1 Qhe5 Be1 Qf5 Nd2 Qh8 Nb1 Qf4 Bed2 Qhe5 Re1 Qh8 g1B Bg2 Rg5 Ke4 Bf2 Rg1 Rg4 Bh1 Rg5 Rg3 Rg1 Rh3 R1g4 Qhh7 Ng2 Rh5 Nh4 Bg2 h1N Qh8 Ng6 Kf3 Ng3 Qhe5 Nf1 Qh2 Ng3 Bh1 Bg1 Bf4 Bd4 Be3 Rc8 Qf5 Rd8 Qf4 Nh4+
N2qR2Q/N2Bp3/k4r2/4nnpR/2NN3P/1Qb1b2q/1B1q2qQ/K2r3q w - - 0 1 illegal: No possible last move, all moves rejected
2b5/2k2N2/RR1nR1qb/1pB1Nb2/Q2p4/1q1rQP2/rr4BK/RQb3n1 w - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 e4 f5 exf5 g5 a4 gxh4 axb5 a6 b6 Nc6 b5 axb5 Rh3 Nb8 Rh2 Na6 Rh1 Nb8 c4 d3 g4 h5 b7 e5 c5 d5 f6 Kd7 f7 e4 g5 h3 g6 d4 g7 h4 Ra3 d2+ Ke2 h2 Ra6 h3 Na3 e3 Kf3 e2 Kg3 e1B Ra7 Nc6 b8R+ Bb7 Nc4 Nge7 g8Q Qb6 Qh7 Nc8 Ba3 Ne5 Nd6 Nf3 c6+ Kd8 Qa1 d1R c7+ Kd7 Qc2 Bd2 Bc5 Rh4 Qca2 Bfh6 f8Q Re4 Qc2 Re2 Qf4 Qc6 Nf7 Qg6+ Qg5 Be3 Qca2 Rb2 Ra3 Bd2 Bg2 Ba6 Re3 Nd6 c8R Rb4 Rc6 Bc8 Re6 Rb2 Qa5 Ra6 Qb4 Raa2 Ra6 Kc7 Qa4 Be3 Rbb6 Bd2 Ne2 Be3 Rf1 Ng1 Nc1 h1B Bd5 h2 Nd3 Be4 Nde5 Bf5 Bh1 Be4 f3 Rd3 Qe1 Bf5 Qeb4 Re2 Ra1 Bc1 Qb1 Reb2 Bg2 h1Q Re8 Nh3 Re6 Qd1 Kh2 Qb3 Qe3 Ng1
3R4/2N1b3/4rbk1/np2B1Bp/PB3r2/R1q1nQ2/1n1rr2q/1N1B1QQK w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 d4 h5 a4 c5 e4 b5 d6 f5 e5 Kf7 d5 f4 g5 f3 d7 b3 d6 f2+ Ke2 c4 Kf3 b2 e6+ Kg6 e7 c3 Ra3 c2 Be2 Nc6 Bf4 c1N Be5 Na5 Qf1 Ra6 Bd1 Nh6 Ne2 g1B Kg2 Qc8 d8B Qc3 d7 Nd3 Nd4 Ng4 Ne6 Rd6 Bb6 Rh6 d8B Rd4 Rh3 Ne3+ Kh1 Bg7 Nc7 Bf6 Bc5 Rd6 Qe2 f1R Bb4 Rf4 Qf1 Bf2 Rh2 Be1 Rd2 g2+ Kg1 Bh4 e8Q+ Kf5 Qe7 Kg6 Qf8 Rdd4 Kh2 g1R Qf3 Rg2+ Kh1 Re2 Bde7 Rd6 Qf1 Re6 Qa8 Rh7 Bd8 Rd7 Qaf3 Kf5 g6 Bhg5 g7 Kg6 Bc2 Be7 Rd1 Bgf6 g8Q+ Kh6 Nd2 b1Q Qgg1 Qa2 Nb1 Nb2 Rd5 Rdd6 Bd1 Kh7 Rc5 Rdd2 Rd5 Bg5 Rd3 Bef6 Bde7 Kg6 Rd8 Bg7 Bbd6 Rdd4 Qb7 Re1 Qff3 Nbc4 Qg3 Qad2 Qf2 Nb2 Qa8 Bf8 B7f6 Be7 Qaf3 Qe2 Bb4 Rd2 Q2g2 Qf2 Q2f1 Ree2 Bg7 Qg3 Bh6 Bgf6 Bg5 Qh2+
Q5r1/3B3N/NK1R1pQb/1nqRNrN1/p1Bb4/1r2rnkB/2P1b1q1/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 h4 Ke6 b4 Kf5 e4+ Ke6 b6 a5 h5 g5 b7 d5 h6 f6 h7 a4 b5 d3 Ke3 d2 Kd4 g3 b6 g2 Nf3 g4 Bc4 g3 Qg1 d1R+ Nbd2 Bh6 Kc5 Ne7 Ba3 Rg8 h8Q Qf8 Rh5 Nbc6 b8N Rf1 b7 Na7 Kb6 Nf5 Rd1 Nh4 Na6 Rb8 Bc5 Nb5 Rg5 Bd7 Rf5 Re8 b8N Qd6+ Nc6 Re7 Qh1 g1B Qg7 g2 Qg6 Bd4 Rg5 g1Q Rf5 Be8 Ng5+ Kd7 Nh7 Ke6 Nf3 Qg2 Rd2 Rb1 Rg5 Rb3 Rh5 Kd7 Nfg5 Nf3 Rd3 Bf7 Rd1 Be6 Rd3 Bg4 Rd2 Ba1 Rd1 d4 Rd2 d3 e6+ Kc8 e5 Bd4 Rd1 Ree8 e7 d2 e6 Qdg3 Ra1 d1R Ne5 Re1 Rc1 Ree3 Rd1 Rd8 e8B Rd5 e7 Q3h3 Nd3 Rf5 Bef7 Kd7 e8B+ Kd8 Bfe6 Qhg3 Ka5 Qd6 B8d7 Ke7 Bb6 Qa3 Ne5 Kd6 Ba7 Ne1 Rd2 Be2 Rd3 Qg4 Qa8 Qg2 Rd2 Nf3 Rd3 Rf4 Bh3 Rf5 Ng4 Rd5 Ne6 Bb2 Bd4 Rc5 Kb6 Rg5 Nf2 Ba1 Bc5+ Ke5 Rd6 Bd4 Nec7 Kf4 Ne6+ Kg3 Nd3 Rg4 Rhd5 Rg5 Ne5 Qc1 Ng4 Rf5 Neg5 Qa3 Ne5 Qxc5+
Q1Q1r2q/8/qnN2p1N/RB1pR1rk/Q1b3r1/1RK1PRnn/4B3/3b2n1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 h4 g3 Be3 Qe7 Bf2 gxf2+ Kd2 Qa3 g4 Qc5 g5 Bh6 g6 Bg5 hxg5 Qf8 Rh2 Qe7 Rh1 Qd8 c4 a5 b4 h5 b6 d5 g7 d3 g6 h4 b7 h3 c5 f6 e3 h2 c6 a4 c7 a3 b5 f3 b6 a2 Nh3 Nh6 g8B Nd7 b8Q Nf5 b7 Nb6 g7 Ng3 Be6 Rh5 Ng5 Ne2 Qb3 Ng1 Nf7 Rg5 Be2 f1N+ Kc3 d2 Na3 d1B Nc2 f2 Nh6 Ng3 Nd4 f1R Nc6 Rf4 Qa4 Rfg4 Qba7 Bd7 b8R Bc8 Bf5 Ba6 c8Q Bc4 Rb7 Rb8 Bfd3 Ra8 Rb1 Rb8 Qa8 a1Q+ Rb2 Qa2 Ra7 Qa1 Ra5 Qa2 Nf5 Kf7 Rb3 Kg6 g8R+ Kh5 Nh6 Qf8 Rg7 Qh8 Re7 Qa3 Re5 Qd6 Qc7 Re8 Qcc8 Qe6 Qcb8 Qc8 Qc7 Qa6 Qcc8 Nh3 Rg1 h1N Rf1 Ng1 Rf3 Nf2 Rbb5 Ba2 Rb3 Nfh3 Bc4 Qh7 Bb5 Qh8 Rb1 Bc4 Rb4 Nf4 Rb3 Nfh3
NR2q1K1/QbnBk3/RNP1r1b1/B4p1r/1n6/4pb2/2bQN1q1/3B1r1N w - - 0 1 illegal: No possible last move, all moves rejected
2q4R/1r2N3/2pqnB2/2b2bb1/q4kq1/2NQ1PRp/B4Q1r/KR1nN2R w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 g4 Kd7 d4 Kd6 Kd2 h5 Kc2 e5 Kb2 e3 g5 b3 b6 c6 f3 e4 g6 e2 g7 e1Q b7 h3 Ra5 h2 Qc2 h4 Qc3 e3 Bd2 e2 Bh6 Na6 b8R Bf5 Na3 Qc8 Nc2 Nc7 Bg5 Nf6 g8N Ne4 Qd2 Nf2 Bf6 Ra7 Ne7 Qd1 Ne1 Rb7 Qc2 Qd3 Ka1 Ne6 Rb5 Nd1 Qc5+ Kd7 d6 Qd2 d5 b2+ Ka2 Qf4 Qf2 Qg4 Rc5 Rh7 Rc1 Bh6 Rb1 Bg5 Bh3 Qc7 Rh8 Qc8 Nc2 e1B Ne2 Bb4 Nc3 Ba3 Ne1 Bc5 Bf1 Rh5 Bc4 Rh6 Rg1 h1Q Rg3 Qh2 Rh7 Kd8 d7 Kc7 d8R Rh5 Rdh8 Kd6 Rg1 Qe5 Rg3 Rh6 Bg7 Qf6 Bb3 Ke5 d6 Kf4 d7 Qd4 d8Q Qe5 Qd3 Qd6 Ra1 Rb4 Bf6 b1Q+ Ka3 Qc1+ Ka2 Rb7 Rb1 Qc2+ Ka1 Rh5 Ba2 Qa4 Rg7 Rh7 Rg1 h3 Rh1 Rb2 Qff1 Rg2 Qf2 Rh2 Bd4 Qg1 Bf6 Bh4 Ng8 Qg3 Rg6 Rb7 Ne7 Qg5 Rg7 Qh5 Rg2 Bg5 Rg3 Qg4
B1r1k1r1/r2Rp3/B1b5/R3N1q1/N1K1QQPb/5B2/1q2pQn1/1Bqn2r1 w - - 0 1 legal: proof: e4 d5 h4 a5 d4 g5 hxg5 f6 b4 axb4 exd5 c5 Bf4 cxd4 Be5 fxe5 Ke2 b5 Kd3 h5 g4 b3 f4 b4 a4 h4 c4 h3 f5 b2 a5 b3 d6 h2 f6 Bg7 g6 Nd7 c5 e4+ Kc4 e3 a6 e2 a7 d3 c6 d2 c7 Nh6 Nf3 Rg8 Qc1 d1R Bg2 Nf5 Qf4 Nf8 Nc3 b1Q Ne5 b2 Bf3 Qc1 Ra5 Bd7 c8B b1Q Ba6 Ne6 Qe4 Rd5 Rd1 h1R Rd4 Bh8 g7 Qbb2 Rd1 Rb8 a8B Bc6 Rd4 Qg5 Na4 Qc8 Rd3 Nf4 d7+ Kd8 f7 Ng2 Qf4 Rg1 Rd1 Rd3 Rd2 Ra3 f8Q+ Kc7 Qf7 Kd8 Qd5 Qc7 Qde4 Rc8 Rd3 Re8 g8B Bf6 Bh7 Nfe3+ Kc5 Nd1 Kc4 Rg8 Bf5 Qa7 Bg6 Qe3 Bf5 Kc7 d8Q+ Kb8 B6b7 Qbb6 Rc5 Qc1+ Nc3 Qcb1 Qdd4 Kc7 Qed5 Qh4 Qf2 Ra7 Na4 Q6b2 Ba6 Bg5 Ra5 Q1c1+ Rc3 Qh5 Bb1 Bh4 Qde4 Kd8 Rc2 Ke8 Rc3 Qe3 Rd3 Qg5 Rd7 Qec1+
2qB2QK/rkqP2b1/4R3/4nQ2/bn3RN1/pr3N2/rB1R1p2/2QR2qq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 g5 d4 f5 Kd2 c5 Ke3 Kc7 d6+ Kb7 b6 a5 d7 f4+ Ke4 a4 Ke5 c4 e4 f3 h5 f2 h6 a3 b5 g4 h7 c3 d5 c2 d6 Bh6 Nf3 g1Q Nh2 g2 Nd2 g3 Ra2 Qh4 d8B Qe1 d7 g1R Ndf3 g2 Ng4 Ra4 Bb2 Ra6 Qc1 Ka8 b7+ Ka7 Kf5 Nf6 Kg6 Qh2 e5 Nc6 b8R Bb7 e6 Qc7 e7 Nd5 e8R Ndb4 Re6 Ne5+ Kf6 Re8 h8Q Bc6 Qh7 Qf1 Rc8 Kb7 b6 Ba4 Qf5 Ra7 Rh4 Rh1 Ra1 g1Q Rb1 Bd2 Kg7 Rh3 Kh7 Re7+ Kh8 Bh6 Ra1 Qh1 Ra2 Qfg1 Ra1 Qd6 Rc6 Qc7 Rcd6 Qc8 Rd2 Rg3 Ngh2 Rh3 Rf4 Rg3 Ng4 Qc7 Qe1 c1Q Qf1 Q1c5 Rad1 Qc8 Qc4 Q5c7 Qc1 Rh3 Ng5 Rb3 Nf3 Ka6 Rf6 Re6 b7 Rb6 b8Q Rc6 Rf7 Rc2 Qa8 Kb6 Re7 Ka6 Qd5 Kb6 Qg8 Kb7 Bd4 Rcb2 Re6 Ra2 Bb2 Bg7+
r1rbN1R1/Np2r1p1/BP1b2n1/3QQq1k/3n4/rn6/R2R2q1/2KRB2N w - - 0 1 legal: proof: b4 d5 a4 a5 g4 e5 c4 h5 cxd5 hxg4 f3 Bd7 f4 Bb5 axb5 axb4 Ra3 exf4 Ra6 Qd6 Ra1 Qd8 d4 c5 Kd2 f5 h4 Kf7 e4 Kg6 d6 c4 e5 g3 b6 f3 d7 b3 e6 g2 e7 f2 e8N b2 d5 c3+ Kc2 f4 d6 f3 Qd4 Qc8 d8Q Ne7 d7 Na6 Qd3+ Kh5 Ra2 Ng6 Qe3 Bd6 Bd2 Nc5 Nh3 g1N Na3 b1R Be1 Ra1 Ba6 f1Q Nb5 f2 Na7 Nf3 Rh2 Qg2 Qe5+ Qg5 Rg2 f1R Rd2 Qc6 Nf2 Qf5+ Qe4 Rg8 Nh1 Rf2 Qe7 Re2 d8R Re3 Qf6 Qcd5 Qd3 Re7 Qe6 Qde4 Qe5 Qg4 Qde4 Qg2 Rd7 Bb8 Rd3 Bd6 Q4d5 Rc8 Ra5 Ra2+ Kc1 c2 Rd1 Rh8 R3d2 Nd4 Ra4 Ra3 Ra5 Kh6 h5 Kg5 h6 Kh5 h7 Ra8 Nc7 Rhc8 Ne8 Rc3 Ra2 Ra3 Kb2 c1B+ Ka1 Kg5 h8R Kg4 Rg8 Kh5 Rc2 Bg5 Kb2 Rec7 Rf2 Bd8 Kc1 Re7 Rfd2 Ncb3+
r3RrN1/pKpb3b/2RR3P/k3rQ1B/8/n4Q1n/3qNR2/rq1qB1N1 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 h4 gxh4 g3 h3 Qb3 h2 Qa4 Bb7 Qd1 Bc8 Nh3 h5 Kf2 h4 Ng1 h3 Ke1 Bd6 Kf2 Be7 Ke1 Bh4 gxh4 Rh7 Nc3 Rh5 Nb1 Rh8 Kf2 Kd7 Kf3 f5 b4 c3 e4 c2 d4 Rh5 b6 Kc6 d5+ Kb7 b5 Na6 e5 Qf8 d6 Rh6 e6 Nb8 d7 Nc6 d8R Bd7 e7 Nb4 e8N Qd6 h5 Re6 h6 Nf6 Be2 Re5 Nc3 Nh7 Bd2 c1Q Ra6 Qb1 Be1 Nc2 Nf6 Qd2 Ng8 Na3 Qc2 Qa1 Bd1 Qb1 Nce2 Ng5+ Kf2 Bc6 Rd6 f3 Qd3 f4 Qf5 Nc2 Ra2 Na3 Rc2 Bd7 Rcc6 Kc8 Kf1 f2 b7+ Kd8 b6 Ke8 Nf3 Kd8 Rg1 h1B Rg2 h2 Nfg1 Nh3 Re6 Be8 b8R+ Kd7 b7 Bg6 Rbe8 Bh7 Rg5 Be4 b8Q h1Q Rg2 Bc2 Rh2 Ba4 Qb7 Qhd5 Qb3 Q5d3 Kg2 f1R Qb7 f3+ Kg3 f2+ Kg4 Qd6 Kf3 Qe7 Qb3 Qd8 Qe3 Kc8 Red6+ Kb7 Rg2 Qb6 Rh2 Ka6 Qed3+ Ka5 Qb3 Rc5 Ke4 Qd7 Qd3 Qb1 Kd4 Re5 Qf3 Re3 Kc5 Qg4 Qdf5 Bb5 Rb6 Bd7 Rbc6 Qa4 Bb3 Re4 Bf7 Qad1 Bh5 Bc8 Rb6 Re5+ Kc6 Bd7+ Kb7 Nf4 Nh3 Rg1 Rg2 f1R Rf2 Rh1 Nhg1 Nh3 Rh2 Qd3 Rbc6 Q3b1+ Qb3 Rf4 Rf2 Rf3 Qc2 Rf6 Qf5 Rf8 Nf3 Qa2 Qbd3 Rf1 Nfg1 Qa4 Qdf3 Q2c2 Rh2 Qce4 Bf2 Ra1 Be1 Qd1 Rf2 Qeb1+
5Q1n/RKn1Bp1k/6bb/p3NQRb/b1N1PQ2/5r1B/1Nq1b1r1/2Q1b3 w - - 0 1 legal: proof: b4 d5 a4 e5 f4 exf4 c4 g5 cxd5 Qf6 h4 gxh4 a5 b5 axb6 Qg7 b5 Qb2 b7 Nc6 b8N Nxb8 Kf2 h5 Kf3 c5 Ke4 h3 g4 h4 d4 f3 b6 c4 g5 c3 b7 a6 g6 c2 g7 f2 d6 h2 Kd5 h3 e4 Bf5 Nf3 Bg6 Bg5 c1B Ne5 Qc2 Nc3 Bd2 Rg1 h1B Na4 h2 Qc1 Be1 Bh3 f1B Nb2 Bb5 Nec4 Bf3 Be7 h1B Rg5 Ba4 Kc5 Bg4 Kb6 Be2 d5 Bhf3 Kc7 Bfh5 Ra2 Nf6 g8Q Nbd7 Qh7 Bh6 b8N Rf8 Nc6 Rg8 N6e5 Nf8 Kb7 Rc8 Ne3 Rc3 N3c4 Bf5 Ra1 Ng6 Qf4 Nh8 Ra3 Be6 Qhf5 Rf3 Bd8 Kf8 d7 Qb1 d6 Nh7 Rg2 Nf6 Qg6 Ne8 Bg5 Bf5 d8Q Bad1 d7 Bb3 Qa8 Qc1 d8Q Qc2 Qdd2 Rg7 Qf6 Kg8 Qc1 Kh7 Qb8 Nc7 Qf8 Rg6 Qe6 Rg8 Be7 Rgg3 Ra5 Bfg6 Qef5 Ba4 Rg1 Rf2 Rg2 Rgf3 Rg5 Rg2 Rb5 Re3 Rb6 a5 Ra6 Reg3 Ra7 Rf3
nN3r1B/1pB2nNr/1Q2n3/1R1n1K1B/b3QP1n/1B1qp3/5b2/nk1NR3 w - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 d4+ Kb4 g4 h5 f6 c5 d6 e5+ Ke4 a2 f4 c4 d7 h3 d5 h4 f7 h2 g5 h3 d6 c3 g6 c2 g7 Kb3 Be3 Kb2 Qd2 Nh6 g8B Na6 Na3 Rh7 Qf2 Nc7 Qf3 c1N Be2 Nd3 Nc2 Nb4 Re1 a1N Nd4 Nbd5 Nf5 Be7 f8Q Bh4 Ng7 Bf2 Qf6 Nf7 Kf5 Kc2 Bc5 e4 Bd4 e3 Bd1+ Kc1 Ne2+ Kb1 Rhf1 h1N Nc3+ Kc1 Qh6 h2 Qe4 Kb2 Bh5 Ng3+ Kg4 h1N Nd1+ Kc1 Qhe6 Ne2 Kf5 Rb8 Rg1 Na8 Rg5 Qe8 d8N Qb5 d7 Qd3 Nc6 Kb1 d8B Bd7 B8b6 Rf8 Nb8 Ba4 Bc7 Nhg3+ Kg4 Nb3 Qb6 Nf5 Bc3 Nh4 Rf5 Nb4 Rb5 Ned4 Bb2 Na1 Bc3 Nd6 Bb3 Ne6 Bb2 Nf7 Bbe5 Nf3 Kf5 Nd5 Ne8 Bg1 Bh8 Bf2 Ng7 Nh4+
b5r1/b1R3NK/1nR1r1QN/3Nkn2/RqPpr3/1r1QRp1n/2nB4/1B6 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 c5 a3 cxd4 a4 b5 axb5 axb4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 d6 c4 f3 b6 d3 b7 f6 h6 g4 h5 b3 h7 f2 h6 d2 Nf3 b2 Nh4 g3 Nc3 b1R Ra4 g2 Nd5 g1N Rh3 Qe7 Re3 Nh3 Nf5 Nd7 b8R Rb3 Rb6 Ra6 Rc6 Nb6 Bg2 f1N Ng7+ Kd7+ Kf5 Bb7 Kg6 f5 Be4 f4 Bb1 f3 Qc2 d1R Bd2 Ba8 Qd3 Re1 Re5 Nf6 e4 Rg8 h8R Nh5 h7 Nhg3 Re6 Ne3 e5 Nc2 Rc7+ Kd8 Rf6 Re4 e6 Qd7 Kh6 Qb5 Rg6 Qb4 Rf6 Be7 Rg6 Rf8 Rg8 Bf6 h8N Bd4 Kh7 Re8 Rf8 Nf5 Rff6 Bf2 Rg1 Bc5 Re1 Rg8 Re3 Bd4 Ng6 Bc5 Ne5 Bd4 Ng4 Bc5 Nf4 d5 Nh6 d4 Nd5 Rh4 Rc6 Re4 e7+ Kd7 Rf8 Na3 Rc7+ Kd6 e8Q Nc2 Qg6+ Ke5 Rff7 Bd6 Rc6 Bb8 Rb7 Ba7 Rbc7 Nc8 Rc5 Re6 R5c6 Nb6
2N1n1B1/1KRpp1Br/6Qq/2PnN1R1/1B4QR/n1rb3r/3k2nb/5B1r w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 h5 g4 h3 c4 h2 f6 d3 b6 b3 f7 h4 g5 h3 b7 d2 f5 Ke3 g6 b2 f6 Rh4 g7 Ra6 Na3 b1N Qg4 Nc6 b8Q Rh7 Nb5 Ra3 Nd6 Ba6 Nc8 Nb4 Nf3 Nd5 Qd6 Rc3 Ra5 Na3 Ne5 Qe8 Bb2 d1N Qde6 Kd2 Qg6 Rc2 Qeg4 N1e3 Rb5 Ng2 Bc3+ Kc1 Bb4 Rc3 Rb7 Kd2 Rg1 h1R Rc7 Nge3 Rg3 h2 Rh3 Ng2 Rh4 Ndf4 Kb6 Nd5+ Ka7 Bb5 c5 Bd3 Kb7 Qd8 Rc6 Qa5 Rc7 Qa6+ Kb8 Nh6 g8B Bg7 f8B Nf5 f7 Nd6 Qd4 Bh8 Qdg4 Ne8 Bg7 Qf6 f8R Qf4 Rf5 Qh6 Bf8 Bf6 Ka7 Bg5 Kb7 Bf4 Rfh5 Rg1 Be2 Re1 Rg5 h1R Bf1 Re3 Bg7 Bh2 Q6h5 Rg3 Qg6 Rh3
4K2B/QRRn2RQ/qq1Nq1nQ/4B1rN/b2Q4/bp1P4/2bp2k1/b5b1 w - - 0 1 legal: proof: g4 a5 b4 axb4 c3 c5 Qb3 h5 gxh5 c4 d3 cxd3 Kd1 d2 Kc2 Qc7 Bb2 Qb6 Bc1 Qd8 Kd1 f5 Qe6 b5 Qc4 d5 Bg2 d4 Be4 fxe4 Qb3 Ra7 Kc2 d1B+ Kd2 d3 Ke1 d2+ Kf1 Ra6 Qc2 Rd6 Qb3 Rd3 exd3 Bcg4 Nh3 Bd7 Ng1 Bc8 Kg2 Kd7 Kh3 Kc6+ Kh4 g6 Kg5 e3 a4 e2 h4 e1Q f4 Nh6 c4 Be6 a5 Qc7 a6 Bf5 c5 e5 Kf6 e4 a7 e3 a8Q+ Qb7 Bb2 g5 Qc3 Kd5 c6 b3 c7 b4 c8R e2 Na3 g4 Nh3 g3 Rb1 g2 Qa7 g1B Nc4 Bg4 f5 Qa6+ Nd6 Rg8 Rc7 Nf7 h6 Rg5 h5 Nh8 h7 Bc2 h6 Ng6 Kf7 Nd7 h8Q Bg7 Ba1 b2 h7 Bf6 Qc4+ Ke5 Ke8 Bf3 Nf4 Bc6 Rh6 B6a4 Nh5 Bc5 Qhg8 b3 h8B Ba3 Qh7 Qf2 Qh4 Qfb6 Rg1 e1B Qb4 Bg7 f6 Bf2 f7 Be3 Rg4 Bg1 f8Q Bf6 Rb7 Bg7 Rc4 Bf6 Rc3 b1Q Bb2 Qe1 Qd4+ Ke6 Rcc7 Be5 Nf7 Kf5 Ba1 Qe4 Nd6+ Kg4 Qf6 Kh3 Qf8 Ne7 Rg6 Kg2 Qfh6 Qe2 Rg7 Ng6 Qb4 Bf6+ Be5 Qg4 Bf4 Bfd4 Be5 Ba1 Qd4 Qe6+
3qRbQ1/q4R1q/Nq2R3/3b1pBR/knr1Q1bP/B1nqN3/1K5p/6B1 w - - 0 1 illegal: No proof kernel
2R1qKnq/1Q6/1R2r3/1QP1bN2/bQ2p1B1/1Q2bBRp/2rb4/N1kb2r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h4 Qb6 g4 Qc7 f5 Qd6 Bf4 gxf4 g5 Qb6 h5 Qd8 Ke2 Nc6 Kd2 Ne5 Ke1 Ng6 hxg6 Bb7 Ke2 Ba6 Ke1 Bc8 Ke2 e5 b4 Ke7 c4 Kd6 g7 a5 b6 h5 b7 h4 b8R a4 f6 a3 f7 e3 Kf3 d3 Kg4 f3 Kf5 h3 Kg6 e2 b5 Kc5 b6 Kd4 b7 Ke3 Qa4 e1B Nd2 d5 Nb3 a2 Be2 d4 Rb1 a1B Qb5 f2 Nf3 f1Q Rg1 d2 Rg3 Bd7 Rc8 d1B b8Q e4 Q8b7 Bc5 f8Q d3 Kf7 d2 g6 Be5 Na1 Ra2 Qd6 Bcd4 Qdb4 Rh6 c5 Rc2 Rb2 Qh4 Kf8 Qh5 Rg2 Qg1 Nh4 Be8 Rg5 Qgg4 Bf3 Qe6 Rg3 Bd7 Q5b6 Ba4 Nf5+ Kd3 Q6c6 Be3 Qe8 Be2 Qec6 d1R Rb3+ B1c3 Qcb5+ Kd2 Rb1 Rg1 Rb2 Ne7 g8B Kc1 g7 Bcd2 Rb3 Qd7 Be6 Bd1 g8Q Qc6 Bd7 Rd6 Qd5 Ng8 Rb2 Re6 Qdb3 Rh1 Be8 Qh4 Beh5 Rg1 Bhg4 Qh8 Q5a5 Qa6 Qd3 B3d4 Qba3 Qc6 Rb6+ Bb2 Q3b4 Bbd4 Qdb3 B4e3 Qab5 Qe8+
1q2Bk1b/nBqb2N1/1b3K2/pQb2nB1/5bp1/3PRB2/1QN1R2q/Rr6 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 h4 g5 Rh2 a5 Rh3 Ra6 Rh1 Rg6 Rh2 g4 Rh1 Rg5 hxg5 fxg3 b4 h5 e4 f5 Ke2 c5 Ke3 g2 Kf4 c3 Ke5 f4 g6 f3 b6 h4 d3 h3 b7 h2 b5 f2 g7 c2 b6 c4 Ne2 g1B Bg2 f1Q Na3 c3 Nf4 Qd7 Bf3 Be3 Ne6 Qe2 Re1 h1Q Qd2 Ne7 g8B Nf5 Kf6 Nc6 b8R Qeh2 e5 Qc7 b7 Na7 Re2 Bfc5 Ng7+ Kf8 e6 Bb6 Ra8 Bec5 b8Q Q1g1 Qg5 Qgg3 Bf4 c1B Nc2 B1e3 Qh5 Bd2 Bg5 Bf4 Bf7 Rg8 Be8 Rh8 Bec6 Rh7 Bb7 Rh8 Nd4 c2 Re3 c1B e7+ Kg8 e8B Bd7 Nc2 Kf8 Qh3 Rh7 Qg2 Rh8 Qd2 Bb2+ Qc3 Qhf2 Re2 Rh1 Qd4 Rb1 Qe5 Bba3 Qb2 Qfh2 Qb5 Qc8 Qe5 Qb8 Qeb2 Qc7 Rc8 Qb8 Rc6 Bab4 Rce6 Bc3+ Kg6 Bf6 R6e3 Bc3 Nh5 Bh8 Ng7 Qc7 Kf6 Qb8 Re5 Bc1 Re7 Qgc7 R7e4 Bf4 Re7 Bc6 R7e3 Bd7
1n5r/1k1bR2p/qr2q3/1q1N1Np1/QBrnR3/KB5P/R2Nq3/1NQ3q1 w - - 0 1 legal: proof: e4 c5 b4 d5 f3 dxe4 a4 b5 axb5 cxb4 g3 exf3 Qe2 f5 Qd1 f2+ Ke2 f4 Nh3 e6 Ng1 Bd6 Kd3 f3 Ke3 Bf4+ gxf4 Kf8 Bd3 Kf7 Bf1 Ke8 c4 Kd7 Kd4 Kc7+ Kc5 g5 d4 a5 b6+ Kb7 h3 e5 d5 b3 f5 b2 f6 e4 d6 e3 d7 a4 Kb4 e2 f7 e1Q+ Ka3 Nc6 f8R Nge7 c5 Qe2 Re8 Ra5 Bd2 Nd4 c6+ Kb8 c7+ Kb7 Qc1 Ndf5 Ra2 Qa6 Bc4 f1Q Bb4 f2 Nf3 Rc5 Bb3 Nc6 Nfd2 Qf6 d8Q Qfb5 Rhe1 f1Q Qd7 Nfd4 R8e7 Qe6 Re4 Nb8 Qe8 Bd7 c8N Qfe2 Nd6+ Kc6 b7 Rc4 Nc3 b1R Nf5 Rb2 Ncb1 Kc7 Re3 Rc6 Re5 Rbc2 Re4 R2c4 Qh5 Rb6 Qg4 Nbc6 b8N Kb7 Qf4 Qa8 Na6 Nb8 Nc7 Qaa6 Kb2 a3+ Ka1 Qaa5 Nd5 Qa7 Rc2 a2 Kb2 Qaa6 Qg4 Qbc6 Qh4 Qab5 Ka3 a1Q+ Ra2 Qcd6 Qg4 Qdh2 Qf4 Qg1 Re3 Rf8 Bc5 Qc3 Rc2 Rb4 Ka2 Ndc6 Qc4 Rc8 Re4 Rh8 Rb2 Nd4 Bd6 Qcd3 Ka3 Qc5 Ra2 Qc6 Qb5 Qc5 Qa5 Qa6 Qa4 Qcb5 Bc5 Rc4 Bd6 Qba5 Bb4 Q5b5
1b2qrNk/4Q2p/2NB1PpB/qRqRK2b/Rn2Q3/1n2q2n/4q3/4N2N w - - 0 1 legal: proof: d4 b5 g4 e5 a4 exd4 axb5 f5 h4 c5 e3 a5 h5 c4 Bd3 cxd3 h6 Ra6 Nf3 Rf6 Ng1 Rf7 Kd2 g6 Ke1 Rg7 hxg7 fxg4 Kd2 Kf7 c4 d5 b4 g3 f4 a4 c5 a3 e4 a2 c6 g2 f5 Be6 b6 Ne7 g8N Kg7 c7 Qe8 c8N Qf7 e5 Bd7 e6 Nbc6 b7 Qe8 b8B Na5 b5 Nec6 e7 Nb4 Nh3 g1N Nf2 Nh3 b6 Bc6 b7 Nb3+ Ke1 d2+ Ke2 d3+ Ke3 Ba4 Qc2 d1Q Nd2 d4+ Ke4 Qh5 Nf3 d2 Na7 d1Q Nc6 d3 Ne1 d2 Ke5 Qde2+ Qe4 d1Q Bd6 Qdd3 b8R Qde3 Rb5 Qhg5 Rd5 Qg1 Rb1 a1Q+ Rb2 Bb5 Rh2 Bd3 Nh1 Qa5 Ra2 Qec5 Ra4 Qge3 Rg2 Bc2 Rg5 Bd1 Rh5 Qg2 Rg5 Bh5 Bd2 Qge2 Bc1 Qf7 e8Q Be7 Qd7 Bd8 Qe7 Bc7 Nh6 Rb8 f6+ Kh8 Ng8 Rf8 Rf5 Qe8 Bd2 Q3f2 Bh6 Bb8 Rf3 Na1 Rb3 Qfe3 Rb2 Na2 Rbb4 Nb3 Rb5 Nb4
3RNk1b/1N1q1p1q/3q1Pn1/1KB2n2/2r4R/1RN1qR1q/n2BQp1r/6Q1 w - - 0 1 legal: proof: f4 a5 d4 c5 h4 cxd4 a4 b5 f5 g5 f6 gxh4 e3 e6 Bd3 Bb7 Bf5 exf5 axb5 a4 b6 a3 b3 Bf3 Rh2 Bc6 Rh1 Ba4 bxa4 Qc8 Kf1 Qc7 Ke1 Qd8 Ke2 h5 Kd3 d5 c4 h3 g4 h2 c5 f4 b7 f3 a5 f2 c6 a2 c7 h4 c8R h3 e4 Nc6 b8B Ra7 a6 Rh5 e5 Rc7 a7 Nge7 a8R Bg7 e6 Nf5 e7 Bh8 g5 Rh7 g6 Ne5+ Kd2 d3 g7 d4 Ba7 Rc3 Rcb8 Ng6 Ne2 Rc4 Na3 Rh5 Rab1 a1Q Nb5 Qa3 Nec3 Qd6 Qf1 Qg3 Rb3 Qe3+ Kd1 d2 Kc2 d1N Bd2 Rh6 Bc5 Rh7 Rba3 d3+ Kb3 Rhh4 Qe2 Rh7 Rg1 h1Q Rg4 h2 Rh4 Qhf3 Rb6 h1Q Rab8 Qfh3 g8Q+ Nf8 Qg1 Ng6 Nd4 Qc8 Nc6 Q1h2 Nd8 Qd7 Rb4 Qdd6 Ka4 Qh1 Nd5 Nc3+ Ka5 Qhe4 Rbb3 Na2 Kb5 Rh6 Nc3 Qeh1 Bc1 d2 Rba8 d1Q Bd2 Rh5 Rc8 Rg5 Rca8 Rg2 Rb8 Rh2 Nb7+ Kd7 e8N Qhe4 Qee1 Q4d3 Qef1 Qh5 Rba8 Qh7 Qe2 Ke6 Rb2 Qd8 Na4 Kd7 Ned6 Qee7 Rb4 Qd4 Rf3 Qee3 Nc3 Qd5 Rb3 Qde7 Nc8 Ke8 Rb8 Kf8 Ncd6+ Qd8 Ne8+ Q5d6 Rc8 Q8e7 Rd8 Qed7+
Q1n4n/r3BB2/3pnK2/PB1Q1n1R/1bn2n2/1B1R4/1q2pk2/2N1NbNn w - - 0 1 legal: proof: f4 g5 g4 b5 h4 a5 d4 c6 h5 f5 b4 axb4 e4 c5 exf5 gxf4 g5 cxd4 Kd2 Ra6 Ke1 Rg6 hxg6 Qb6 Qg4 Qa5 Qd1 Qd8 Kd2 e5 Kd3 Ke7 Ke4 Kd6 c4 Kc5 a4 h5 a5 b3 g7 b2 f6 f3 Kf5 f2 g6 d3 f7 Kd4 c5 e4 c6 e3 c7 h4 Be2 f1N Rh3 d2 Ra3 b4 Bc4 e2 Qe1 d1N Rhf3 b3 Nd2 b1N Rf4+ Ke3 Bd3 h3 Ra1 b2 Rfa4 h2 R4a3 h1N Ba6+ Nbc3 Bd3 b1N Ba6 Nh6+ Ke5 Nfg3 g8B Nh5 g7 Nf4 Nb3+ Nd2 Bb5 Bb4 f8N Rh7 Ng6 Ncd5 Nh4 Na6 Bf7 Nc5 g8B Ne7 Kf6 d6 Nhf3 Bh3 c8Q Qb6 Qa8 Nce6 Qh4 Nc8 Ne1 Bg2 Qh5 Kf2 Qhd5 Ne3 Bb2 Bf1 Nc1 Qb8 Rd3 Ndc4 Raa3 Nef5 Rh3 Nh4 Rad3 Nhg6 Rh5 Nh8 Bd4+ Ne3 Bb6 Nf5 Bd8 Nc4 Be7 Rg7 Ba4 Qb5 Bb3 Qb6 Be8 Qb7 Bb5 Qb8 Bf8 Ra7 Be7 Qb6 Bf7 Qe3 Qe4 Qd2 Qed5 Qb2+
b1RBB3/1rN5/1Q2Qr2/1pN2qn1/1q1Q4/PbpRr1k1/1R3q1q/1bK2Q2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 f5 b5 e5 b6 exf4 g3 f3 Qb3 axb6 Kd1 b5 Kc2 f2 Kc3 Nc6 Qd1 b4+ Kc2 Nb8 Ba3 g5 Bb2 f4 Bc1 f3 Qe1 Bd6 Qd1 Bf4 gxf4 Nc6 h3 Ne5 h4 g4 Bg2 Nf7 Bf1 Ng5 hxg5 Qd7 Rh2 Qe7 Rh1 Qd8 e4 Kd7 d4 Ke6 e5 Kf5 d5 b5 e6 h5 e7 c5 e8Q c3 d6 h4 d7 c4 a3 h3 g6 h2 g7 g3 Qd2 Kg4 f5 g2 f6 b3+ Kd1 b2 f7 Qh4 f8Q Ra6 d8Q Be6 Ne2 g1Q Q2d3 Nf6 Ra2 Rh7 Nd4 Kg3 Nb3 Ne4 g8R+ Ng5 Nc5 Rb7 Qb6 c2+ Kd2 Qd4 Nc3 b1B Be2 f1Q Rb2 Qff2 Nd5 Qh4 Qd4 c3+ Kd3 Qgg2 Rd1 h1B Nc7 Bb3 Qee6 Qgh2 Qff6 Qf4 Rc8 Bg2 Be3 Qg4 Rd2 Bh1 Bd1 c1R+ Bc2 Re1 Rd1 Nh7 Bg5 Re2 Qff7 Re4 Bd8 Ng5 Qff6 Re1 Qdd7 Qb4 Qdd4 Qfg1 Qff7 f2 Qf8 Re2 Qff7 f1Q Qff5 Qfh3 Qf1 Qgf2 Rd2 B1a2 Bd1 Re4 Bh5 Qhf5 Be8 Bf3 Qa5 Rd6 Qb6 Rc6 Qec4 Rf6 Qce6 Bc4+ Kc2 Re3+ Kc1 Bcb3 Rd3 Bb1 Qed5 Ra7 Qg8 Ba8 Qge6 Rb7
4r1Kn/qkBb3R/rB2N1P1/q1r3p1/1NRN4/1pQ2rN1/n3n3/q1BQ4 w - - 0 1 illegal: No extended proof kernel
2Bnq2N/2N2r1P/BKR2B2/nB2q2Q/8/Np1r3p/r2qn3/RbQ1n2k w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 e6 Kf2 exf5 Ke1 f4 h4 gxh4 g3 h3 Ba3 h2 Bb2 Ra4 Bc1 Ra8 Nf3 h5 Ne5 h4 Nf3 h3 Ng1 Be7 Qb3 Bf5 Qd1 Bh4 gxh4 Bc8 Kf2 Ke7 d4 Kd6 a4 c5 e4 b5 h5 f5 h6 c4 h7 f3 Ke3 f2 a5 f4+ Kf3 c3 a6 c2 a7 b3 Bd3 f1N Bb2 c1Q Na3 b4 Ne2 Ne3 Nc3 Nc6 Ba6 Qd2 Qc1 Nc2 Rf1 h1N e5+ Kd7 Ke4 f3 d6 Ke6 d7 f2 Re1 f1R Ncb5 Qe8 d8Q Nge7 Qa5 Nd8 Bc3 b2 d5+ Kf7 e6+ Kg6 d6 Kg5 d7 Kg4 Ke5 Kg3 Nc7 Kg2 Qd5+ Kg1 Kd6 b1Q Kc5 b3 Bf6 Nec6 e7 Na5 Kb6 Qb2 Re6 Ng3 Rc6 Ne2 Qf3 Ne1 Qh5 Qg8 e8B Kh1 Ncb5 Qe5 Nc7 Ndb7 d8N Bf5 Nf7 Nd8 Bd7 Qge8 Bdc8 Bb1 Bb5 Rf8 Nh8 Rf7 Bca6 Rf3 Bc8 Rd3 Bca6 Rc8 a8B Rb8+ B8b7 Ra8 Bc8 Ra7 Ne6 Rad7 Nc7 R7d5 Qf5 Rc5 Qg5 Rc2 Qh5 Ra2
2B1nQ2/5QP1/4nNqp/bk1qQ1b1/pn1BN2K/r5R1/1q3N1b/Rb3N2 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 b4 f5 c4 d5 e4 Kd7 e5 f4 g6 d3 g7 f3 c5 a4 b6 Kc6 e6 f2+ Kd2 g2 Ke3 d2 Kf4 g3 Kg4 d4 b7 d3 Kh3 Nf6 Ne2 g1B Nbc3 g2 Bb2 Be7 Ne4 Qd5 N2g3 Ne8 Qh5 d1N Qf7 d2 Bd4 Na6 b8Q Ne3 Qe5 Bh2 Rg1 Nac7 Ba6 f1Q Nf2 Qb1 Nf1 d1Q Bb7+ Kb5 c6 Bd7 Bc8 h6 Ra2 Qdc1 Ra1 Nc2 Kg4 Bc5 Kh4 Bb6 e7 Ne6 c7 Rg8 Bb2 Ba5 Bd4 Nd6 e8N Rf8 Nf6 Ne8 N6e4 Qa3 Nf6 Qbb2 N6e4 Qd3 Nf6 Qg6 N6e4 Kc4 b5 Nb4 b6 Kb5 b7 Bf4 b8N Bg5+ Kg3 Bc6 Nd7 Bb7 Ndf6 Ba6 Rh1 g1B Rh3 Bh2+ Kg4 Kc6 Rg3 Bd3 Kh3 Bb1 Kg4 Bd2+ Kh4 Kb5 Bb7 Bc1 c8Q Be3 Qcc7 Bc1 Bc8 Be3 Qfe7 Rf7 Qf8 Bg5+ Kg4 Rd7 Qa7 Rd6 Qaf7 Rc6 Kh3 Rc3 Kg4 Ra3 Kh3 Be3 Kh4 Bg5+
2BbRKr1/1b3p1b/Qn1R1P2/1qq2R2/1rkNQQ2/2p5/r6r/1qQ1B2N w - - 0 1 legal: proof: c4 d5 d4 dxc4 a4 b5 axb5 e5 Qd2 exd4 Qc2 Qd5 Qd1 Qd8 b4 a5 h4 g5 Ra4 gxh4 Ra1 a4 Qd2 Nc6 Qd1 Na5 bxa5 Be6 Qb3 Bd7 Qd1 Bc8 Kd2 Kd7 e4 Kd6 g4 Kc5 f4 h5 g5 d3 Ke3 c6 g6 c3 e5 c2 Ke4 d2 e6 a3 Ke5 h3 b6 h4 g7 a2 a6 h2 a7 h3 b7 Ne7 Kf6 Kd5 g8Q c5 b8Q c4 f5 c3 Na3 Rh4 Qgg4 Qd7 Qbf4 Qa4 Ba6 Qb5 Ne2 Bb7 Rf1 h1Q Ng3 Qg1 Nh1 Nc8 e7 h2 e8R Be7+ Kg7 Nb6 f6 Bd8 Kf8 Qf2 Qe1 d1B Bd2 c1Q Nc2 Qcb1 Nd4 Bc2 Qc1 Bh7 Be1 Kc4 Qg6 Rc8 a8Q Rg4 Qge4 Rh4 Ng3 h1R Qa7 R1h2 Nh1 Qb3 Rb1 a1R Rb2 Ra8 Rd2 Ra2 Rd1 Qb1 Rd2 Bd5 Bc8 Bb7 Qa6 Qe3 Rg1 Rb8 Rg5 Qg1 Rd5 Qg5 Rd6 Qc5 Rg2 Ra8 Rg5 Rg4 Qaa3 Ra4 Rf5 Rb4 Qa6 Rg8+
kN1BQ2n/2b2N1n/1r6/P2p3Q/R4nKr/q1R1NrBr/Br1p2B1/2r5 w - - 0 1 illegal: No possible last move
5BR1/1P1p2n1/B1N1rKQQ/3r1bRQ/p1Nr4/3n1rB1/1n1b4/1Qr2bk1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 g4 Bf1 Qg5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 a5 e4 h5 c4 d3 b4+ Kd4 b6 d2 c5 Ke3 b5 Kf2 b7 g2 c6 g3 e5 a4 e6 h4 b6 h3 c7 h2 e7 Bh6 e8Q Ra5+ Qe5 Nc6 b8B Nf6 g6 Rd5 g7 Nh5 g8Q Ng7+ Kf6 Nb4 Ne2 g1R Nf4 g2 Qe7 Nd3 Qee8 Bb7 c8Q Ba6 Qh7 Rf8 Qh5 d1N b7 N1b2 Ne2 Bd2 Nd4 Bb5 Be2 Rd1 Rg1 h1R Qc2 Ba6 Q5g6 Rh6 Nc6 Bc4 Qh8 Ba2 Na3 Bb1 Nc4 Rd4 Re1 g1R Bg3+ Kg2 Ra2 Rgh1 Bf1+ Kg1 Re5 R1h5 Ra5 Rhd5 Qb3 Re1 Qe2 Rh1 Qeh5 Re3 Q8h6 Rf3+ Ke7 f5 Qb5 Rg8 Kf6 Re8 Ra8 Ree3 Rg8 f4 Qb6 Nb4 Ra3 Bf5 Rb3 N4d3 Rb5 Nd1 Ba3 N1b2 Bf8 Re6+ Kg5 Rfe3 Ra5 f3 Qb4 f2 Rb5 Nd1 Qb1 N1b2 Be2+ f1B Rc5 R6e5 Kf6 Rf3 Ne3 Ne1 Ba6 Ned3 Nc4 Re6+ Kf7 Rde5 Be7 Bg4+ Qgf5 Kg2 Nb4 Be2 Nc6 Rc1 Bf8 Kg1 Qff6 Bf1 Kg6 Re2 Rg5 R2e5 Kf7 Bf5 Qfg6 Re8 Kf6 Red5 Qgh7 Ree3 Q7g6 Re6+
4q3/1nR1B2N/bnR2r1p/2BR4/1QQ2b1k/1bR4b/pP2K1bb/4q1NQ w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 d4 cxd4 f5 g6 f6 Na6 Be2 Nb8 h4 Qb6 g4 Bg7 g5 Qd8 Bg4 Bh6 Bf5 gxf5 g6 Bf8 Be3 a5 Ne2 Ra7 Bf4 Rc7 Ng1 Rc3 Bh6 Rg3 Bc1 Rg5 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 c4 e5 c5 d5 b6 e3 c6 e2 f7+ Ke7 b7 a4 c7 f4 g7 d3 g6 Kf6 Qd2 Kg5 Rh4 a3 Rh6 d4 Rh4 h6 Qd1 d2+ Kf2 e1B+ Kf1 d3 Rh3 e4 Re3 a2 Nc3 f3 Qe2 d1B Qh2 f2 Rh3+ e3 Nd5 d2 Qg3+ Bdg4 Qg2 d1B Qh1 Nc6 b8Q Nge7 g8Q Qe8 g7 Bd2 Qb4 Bb3 Nf6 Nd8 Rb1 Bge6 Ke2 Nb7 Rf3 Bh3 Nh7+ Kh5 Rf6 Nd5 Rc6 Bd6 f8B Bf4 Bc5 Nb6 Qgc4 Rf8 g8R Kh4 Rg5 Rf6 Rd5 Bc3 Bd2 Be5 Rc1 Bd6 Rc3 f1B+ Kf3 Bg2+ Ke2 Na5 Bc1 Ba6 c8R Nb7 R8c7 Be5 Ke1 e2 Be7 Qf7 Be3 Qe8 Kd2 e1Q+ Kd3 Qa1 Ke2 Bd6 Bd4 Bh2 Be3+ Bdf4 B3c5 Qe1+
5B2/QK2rqrb/2PQ2r1/bp3B2/N3RrB1/nk2N3/R1bp4/br2BN2 w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Nb1 f5 exf5 g5 Qg4 Bg7 Qd1 Bf8 g4 Na6 f4 gxf4 h4 Nb8 g5 Na6 g6 Nc7 Bd2 Ne6 Bc1 Ng5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 Kd2 h5 Kd3 b5 Ke4 e5 Kd5 Ke7 a4 d3 c4 b3 g7 h4 a5 h3 a6 e4 g6 h2 c5 f3 a7 b2 c6 d2 Bc4 f2 Qh5 d1B Bh6 f1R Bd2 e3 Qh3 e2 Qg4 e1B Ra3 Qe8 Bc1 Qf7+ Kc5 d5 Kb6 Kd6 f6 d4 Bd3 Kd5 Qg3 Bf5 Bd2 Nh6 g8B Re8 a8Q Bg7 Ra2 Ng4 Qa7 Ne5 Ne2 Rf4 Rf1 Bf2 Be1 h1R Nd2 b1R Bh7 Rh6 Nc3+ Ke6 Rh1 Re7 Be2 Bdc2 Bg4 Rg8 Na4 Kd5 Nf1 Kc4 Rh4 d3+ Ka6 Bh8 g7 d2 Qa3 Bd4 Qd6 Ba1 Kb6 Bfe4 Bhf5 Rg6 Ka6 Kb3 Kb6 Rc8 g8N Rcc7 Nh6 Nc4+ Ka6 Na3 Kb6 Qh7 f7 Bhe5 f8B Qg7 Rh3+ Bed3 Re3 Qf7 Re4 Rcd7 Qdb8 Bc7+ Kb7 Rg7 Qd8 Rd6 Qd7 Rdg6 Qd6 Rc1 Bc8 Rd1 Nf5 Rb1 N5e3 Rgf6 Rc4 Bh7 Re4 Rfg6 Bcf5 Ba5+
R2rB2b/1P3q1Q/3kN2Q/p2Nnr1B/K2B1p1b/4N1Rr/rB4r1/1rq5 w - - 0 1 illegal: No possible last move, all moves rejected
2r2R1N/P1QB1B1b/1KQ1q1p1/Np1r3N/1b2k3/bNrbb3/1R1n4/1r3B2 w - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 cxd5 h6 d6 hxg5 Bh3 g4 Bg2 Be6 Bf1 Bc8 d4 Ne7 f4 Kd7 e4 Na6 f5 Ke8 d5 Ng8 Be3 Nc5 Bd4 exd4 e5 Ne6 fxe6 Ra7 Qe2 Ra4 Qd1 Ra8 Kd2 c5 Kd3 f5 Kc4 d3 Kb5 c4 h4 b3 a4 g3 d7+ Ke7 a5 d2 a6 g2 a7 c3 h5 b2 h6 f4 h7 f3 Ra2 c2 Ne2 g1B Qc1 d1R Nd2 b1R+ Rb2 f2 Nb3 Qe8 Kb6 Nf6 d8N Ne4 Ng3 Nd2 Nh5 Bd7 Rh3 Rc8 Rf3 Rc3 Rf4 Rg8 h8N Bb5 Rf6 Bd3 Rf3 Bh7 Rf4 Qd7 d6+ Ke8 e7 g6 Rf7 Qe6 Nc6 Kd7 Rf6 Qf7 Rf3 Ke6 e8B Kd5 e6 Ke4 d7 Bb4 e7 Qe6 Bf7 Rb8 e8B Rc8 Ba6 f1B+ Rf2 Qf6 d8Q Bd3 Qc7 Qe6 Bc4 Be7 Bd7 Bb4 Kb5 b6 Rf1 Bgc5 Nca5 Be3 Rf3 Rg1 Ka6 Rg5 Qh1 c1B Kb7 Bc2 Bf1 Rd5 Qg2 Bd3 Rf5+ Nf3 Qc2 b5 Qc6 Bg5 Kb6 Bge7 Qh2 Nd2 Qc7 Bed6 Bg8 Be7 Rf8 Bg5 Bf7 Bh6 Rc2 Bca3 Rb2 Be3+
N1Q5/Q3Qb1n/B1Pn4/Q1n1p2b/Nn1kr2K/Br6/p1b2n1B/4R1nR w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 f5 bxa4 d3 Bh6 d4 cxd4 f6 Qa5+ Ke2 Qb5+ Ke1 Qf5 gxf5 g4 Qd2 Kd8 Qd1 Bg5 hxg5 Ke8 Kf2 Kf7 Kg3 a5 c4 e5 b4 d5 c5 h5 b5 e3 c6 e2 b6 e1N b7 d3 Na3 d2 Nc4 d4 Ne3 h4+ Kf2 d3 Ba3 h3 Kg3 h2 Qc1 d1B Nf3 d2 Qc2 Be6 Nh4 Ne7 Bc1 a3 Qd3 a2 Qd6 a4 Qb4 a3 Ng6 Nc8 Nc4 Bc2 Nb6 d1B Ba6 Nd7 b8Q Nc5 Nf4 Nd6 Nd3 Nf3 Qa5 Rh4 Nb2 Bc4 Qc8 Rb8 Na8 Rb3 Bf4 Be6 Rb1 a1N Na4 a2 Qb8 Be2 Rbe1 B6c4 Kg2 g3 Qa7+ Kg8 g6 Bf7 g7 Ng5 Qe7 Kh7 Qa7 Beh5 g8Q+ Kh6 Qc8 Kh7 Kf1 g2+ Kf2 g1N Bg3 Re4 Bf4 Bd3 Kg3 Nc2 Kh4 Kh6 Q5c7 Nb4 Qa5 Bfc4 f7 Bc2 f6 Kg6 f8Q Bf7 Qfe7 Nh7 Qcb8 Kf5 Qbe8 Ree3 Qc8+ Ke4 Bg3 Kd4 Bf4 Bfg6 f7 Re4 f8B Bf7 Bh6 Bg4 Bc1 Be2+ Bhf4 Beh5 Ba3 Ne2 Rhf1 h1N Rg1 Nf2 Rh1 Ree3 Bg3 Ng1 Bh2 Re4+
3Nn3/2B4b/B1n1q1kB/1n1Rr2q/Q2PnK2/p4Q2/pQ1Q2b1/q1R2Nq1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 c5 exf4 c6 f3 Ra2 dxc6 Ra3 c5 Ra1 c4 h3 a5 Ra2 g5 Ra3 f4 Ra1 Bh6 h4 Ra6 Rh3 Rf6 Rh1 Rf5 gxf5 g4 Na3 Qd4 Nb1 Bg5 hxg5 Qd8 Kf2 Kf7 d4 c5 b4 h5 e4 g3+ Ke1 g2 Kd2 f2 b5 a3 e5 c3+ Kd3 a2 Ke4 a4 f6 f3 e6+ Kg6 f7 h4 f8Q a3 e7 h3 b6 c2 b7 h2 Bf4 c1N Bc4 f1N Qe1 f2 Nf3 g1Q Bd2 Qd6 Ba6 Nc6 b8B c4 Bc7 Qe6+ Kf4 c3 Qe2 c2 e8Q+ Kh7 Qb5 Nf6 Qb2 Ng3 Ne5 f1B Nf7 Nge4 Nd8 Bg2 Be3 Bb7 Nd2 Rg8 Qd7+ Kg6 Nf1 Ne8 Qfb4 Rh8 Qd2 Rh5 Qd5 Nf2 Qf3 Ne4 Qb3 Ba8 Qa4 Bb7 Rb1 Bc8 Rb5 Bb7 Rf5 Ne2+ Kg4 N2c3 Kf4 c1Q Rd5 Qa1 Qb2 Kg7 g6 Nb5 Bc1 Kf6 g7 Re5 g8Q Bc8 Qf8+ Kg6 Qff2 Qe7 Be3 Bf5 Qfd2 Qe6 Qf7+ Kh6 Qh5+ Kg7 Qhe2 Bh7 Qf3 Kg6 Ng3 Qf2 Rc1 h1Q Nf1 Qfg1 Bf2 Qd7 Bh4 Qc8 Bg5 Qe6 Bh6 Qh5
B1RQ1b2/4rB2/4qR2/2q1qP1n/bpp1b1R1/1R2NQq1/1Q1nK3/bN4k1 w - - 0 1 legal: proof: c4 a5 f4 f5 e4 fxe4 g4 b5 g5 h6 f5 Ra7 b4 axb4 Bb2 d5 cxd5 Ra3 Be5 Rc3 Bf4 Rc6 Be3 Rf6 gxf6 Qd6 Bf4 Qd8 Bg5 hxg5 a4 Kf7 d4 c5 h4 e5 d6 b3 d5 c4 a5 b2 d7 b4 d6 e3 a6 g4 a7 g5 a8B e2 h5 e4 h6 g3 h7 g4 Bg2 Na6 Bc6 Qb6 d8Q Bd7 Qb8 Nc5 Bh3 g2 Qd2 g3 Qh6 Nb3 Rh2 Nd2 Ba4 Qc5 Bd1 Ba4 Nf3 g1B d7 g2 d8Q Bd4 Qhf4 g1Q+ Bf1 Qg4 Ra3 Qg3+ Rf2 Be5 Nh4 Bc3 Ng2 Be5 Nc3 b1B Rb3 Bc2 Nb1 Ba1 Qe3 Qge5 Rf4 Qe6 Kf2 e1Q+ Kg1 Qg3 Rg4 Qge5 Kf2 Bd3 Qed4 e3+ Ke1 e2 Ne3 Be4 Qb2 Qcd4 Kf2 Qdc5 Qa8 e1Q+ Kg1 Bd3 Qf3 Q1g3+ Bg2 Be4 Be2 Ne7 Bd1 Nd5 Be2 Rg8 h8R Nf4 Rh6 Nh5 Rhg6 Qgf4 Kf2 Rg7 Bd1 Qg3+ Ke2 Kg8 Bh1 Kh7 Bg2 Re7 f7 Qd7 Rc6 Qde6 Rc8 Kh6 Rh4 Bg7 f8R Kg5 Rf6 Bf8 Rf4 Ng7 Rg4+ Kh5 Rgg6+ Kh4 Bh1 Kh3 Rg4 Kh2 Bc2 Bec6 Be4 Q6d5 Qf1 Qg8 Bd5 Nh5 Bhe4 Ba8 Qf3 Kg1 Be6 Qf7 Bc6 Qg8 Bed5 Qf7 Be8 Qfe6 Bf7 B8c6 Be4 Bd7 Bb7 Bdc6 Ba8 Be4
2n1K3/1kq2N2/2p1Qn1P/r2R2Bn/bN3b2/B1qnbQ1p/Q3b1QR/4R3 w - - 0 1 illegal: No proof kernel
3nr3/Q6p/Npr1P3/N3q1RR/2q1qBr1/2Qr1kB1/qK2b1n1/BN3N2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 g6 g5 Bd6 Bh3 f3 Bf5 gxf5 g6 f4 Nc3 Be7 Nb1 Bg5 hxg5 Ra7 Rh5 Ra5 Rh1 Ra8 a4 Ke7 e4 Kd6 d4 f5 Kd2 c5 Kc2 f2 a5 f1Q a6 b6 a7 f3 g7 b3+ Kc3 c4 g6 b2 Qd2 f4 Ra5 f2 Ne2 f3 Ng3 Qe7 Rh5 Nf6 g8N Ng4 g7 Qe5 Ne7 Ne3 g8Q Ng2 Qf7 Rd8 Nc6 Qd1 Nf1 Bg4 Rb5 Qa4 Na5 Re8 Qe1 Rg8 Bf4 Nc6 Rg5 Raf8 a8N Re8 Nc7 Nd8 Na6 Rg7 Qa7 Rg6 Na3 b1Q Rc5 Qd3+ Kb2 Bh5 Nb1 c3+ Kc1 c2 Qc3 Qdc4 Kb2 c1R Bg3 Rg7 Rb5 Rd1 Rc5 Rc7 Rb5 Rd3 Rc5 Ke7 d6+ Kf6 d5 Rc6 d7 Qcd4 d6 Qdc4 Nh2 f1R Rd5 Re1 Nf1 f2 Rb5 Be2 Rd5 Nf7 d8B+ Ke6 Be7 Nd8 d7 Rg8 Rh5 Rg4 Bg5 Qcd4 B5f4 Qdc4 Nfd2 f1Q Rc5 Qf3 Nf1 Qc7 e5 Qfe4 Rh2 Kf5 Rh5+ Rg5 Rb5 Kg4 Rd5 Kf3 e6 Qce5 Rb5 Rd1 Rc5 Rg4 Rb5 Nb7 d8B Rc1 Bf6 Nd8 Ne3 Rg1 Nf1 Rg8 Rg5 Re8 Rc5 Rh1 Bg7 Rh4 Bh8 Rg4 Rh5 Qf6 Rcg5 Qfe5 Kc1 Rf8 Qc2 Q5d5 Ba1 Qde5 Qc3 Re8 Kb2 Qaa2+
1Q4nk/1BRbpK2/1Q2nb2/2qN1r1b/1N2BQbq/n3RPpR/3n4/Q7 w - - 0 1 illegal: No possible last move
k2K1Rq1/P2B4/Nr2NQ2/3Nn1Q1/2r1q1b1/R1Rb1pq1/2p2b2/3bNBq1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Nh3 f5 Ba3 h6 Bb2 f4 Ng1 Nc6 Bf6 Nce7 Bg5 Nf5 gxf5 hxg5 Kf2 Kd7 a4 b5 e4 c5 d4 Kc7 h4 Kb8 d6 g4 a5 g5 a6 b3 d7 c4 a7+ Kb7 h5 b4 f6 c3 f7 b2 d5 b3 e5 Rh7 h6 Bd6 f8R Rb8 e6 Ka8 e7 Rb6 e8B Ne7 Ra3 Ng6 Rh3 Ne5 Qd2 Bc5+ Qe3 Qc7 d8N Bf5 d6 g3+ Ke1 g2 Kf2 g4 d7 Bc2 Ne6 Bd1 d8N Re7 h7 g3+ Ke1 Qb8 h8Q Rc7 Qf6 Bd4 Nb7 Rc4 Nbc5 Qd8 Nd2 b1Q Bd7 b2 Na6 Qe4 Ne2 b1B Qg1 c2 Qe3 g1Q Nc3 g2 Nd5 Qh2 Kf2 Ba2 Rg3 Bb2 Qc5 Qb8 Qce7 Qhh7 Qg5 Qg8 Qef6 Bc3 Nb3 Ba5 Nc1 Bb3 Nd3 Be1+ Kg1 f2+ Kh2 g1Q+ Kh3 Ba4 Kh4 Bc6 Re3 f3+ Kh5 Bb7 Rc3 Bc8 Kh6 Bd2 Ne1 Bc1 Red3 Be3 Ra3 Bc5 Rdc3 Bd4 Qc1 Q8g3 Qcg5 Be3 Kg7 Bc5 Bh3 f1B Kg8 Bd3 Bf1 Bf2 Kg7 Ng6 Kf7 Ne5+ Ke8 Qb7 Bb5 Qf7+ Kd8 Qg8 Ba4 Bd7 Bb5 Be8 Ba4 Bh5 Bd7 Bg4
1kb3bb/n6P/1NR3r1/Qn2NbQ1/pR1Np3/B5bN/1KB2r2/1n1Rn3 w - - 0 1 legal: proof: d4 b5 h4 f5 g4 c5 a4 cxd4 axb5 h5 e4 fxe4 Ra6 g5 Ra5 Qc7 Ra1 Qc5 Rh3 gxh4 Rh1 h3 Kd2 h4 Ke1 Qh5 gxh5 Bb7 Bg5 Ba6 Bc1 Bc8 Kd2 Kd8 b4 Kc7 c4 d5 Kc2 a5 f4 e5 f5 d3+ Kb2 d2 f6 d4 h6 d3 h7 e3 c5 h2 f7 e2 c6 e1B Ne2 a4 Ka2 h3 Kb2 Na6 b6+ Kb8 b7 Nc7 b5 Bg7 f8Q Ra6 Qc5 Bg3 Ng1 Ne7 Nc3 Rf8 Qh5 d1B Qg5 d2 Bd3 Bh8 Nce2 Bb3 Bc2 Bg8 Nd4 Rf2 Qb6 Bf5 Qa5 Nc8 Ra3 Na7 Rc3 Nd5 Rc4 Nc3 Rb4 Rb6 Rc4 Nb1 Rc3 Kc7 b8N e4 Nd7 d1N+ Ka1 Kc8 c7 Rg6 Rc6 Ndc3 b6 Ncb5 Ne5 Kb7 c8N Kb8 Ne7 Bc8 b7 Bf5 Kb2 Bc8 Ngf3 Bf5 Rg1 h1B Nd5 h2 Rd1 Bg2 Ng1 h1N Nh3 Bf3 Nb6 B3g4 Ka1 Bc8 Ba3 Bgf5 Kb2 Rg2 Nef3 Nf2 Ne5 Nd3+ Ka1 Ne1 Kb2 Bf7 Rd6 Kc7 b8R Bg8 Rf6 Rf2 Rb7+ Kd8 Rc6+ Rf6 Qgd2 Nc7 Nbc4 Rd6 Rb4 Rg6 Nb6 Ncb5 Rf6 Kc7 Qg5 Kb7 Rc6 Kb8
Rr3rB1/RN2b2r/p1QK2r1/RQ2Np1r/bNP5/k7/1n1Rbb2/5bB1 w - - 0 1 legal: proof: d4 b5 h4 f5 g4 e5 f4 c5 a4 cxd4 g5 bxa4 Rh2 exf4 Rh1 Qf6 gxf6 g5 Nd2 g4 Bh3 Nc6 Nb1 Ne5 Bg2 Nf7 Bf1 Ng5 hxg5 Bg7 Ra2 Bh6 Ra1 Bf8 Kf2 d5 e4 Kd7 b4 Kc6 c4 h5 f7 a3 g6 d3 g7 d4 b5+ Kc5 e5 Kb4 b6 h4 e6 a2 e7 d2 e8Q f3 b7 h3 Kg3 a6 Kf4 g3 Ke5 d3 b8N g2 Qd7 h2 Qc2 d1B Be3 d2 Qe4 f2 Qf3 Nf6 g8R Nh5 Qfc6 Rh7 Na3 Bc5 f8R Nf4 Nf3 g1R Rf7 Be2 Nb5 d1R Nd6 Ka3 Bg2 f1B Nb7 Rb1 Re8 Bd4+ Kd6 Nd3 Ne5 Nb2 Bd5 Rg6+ Be6 Bb6 Bg1 Bf2 Qb5 Rh5 Nbc6 Rh7 Qc7 Bd7 Nb4 Rb8 Qcb6 Re1 Rd1 a1B Rd2 Rd1 Rc8 Rb1 Rc5 Rf8 Rc8 Rh5 Ra8 Rh7 Q5a5+ Ba4 Qc6 Rh5 Qab5 Nd1 Ng4 Bf6 Ne5 Rb3 Re7 Nb2 Bg8 B2h4 Bc5 Bf2 Rg1 h1R Rg2 Be1 Bg1 Bf2 Rg3 Rh7 Rgd3 R1h3 Rd5 Rh2 Na5 R2h5 Rea7 Rb7 Rc5 Rbh3 Rcd5 Rbb8 Nb7 Rh2 Qbb6 Rh7 Ra5 R2h5 Qbb5 Be7+
1NBbn3/4p1R1/1RK3Bb/r3Q1N1/2k1Pnb1/B1n1B2p/3nn1b1/2bNQ3 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 b5 d6 b3 Bd2 cxd6 Bg5 d5 Bc1 d4 h4 g5 Rh2 g3 Ba3 b4 Rh1 g4 Bb2 Ra5 Bc1 Rg5 hxg5 Qc7 Rh4 Qc6 Rh1 Qb5 axb5 Ba6 Nd2 Bb7 Nb1 Bc8 Kd2 Kf7 Kd3 Ke6 Kc4 h5 Kc5 d5 c4 d3 f4 g2 b6 d4 e3 b2 g6 g3 g7 d2 b7 b3 Ra8 h4 Qh5 d1N Qe2 d3 Ra6+ Nc6 b8B h3 Bd6 d2 Rb6 Nb4 Qh5 Nd5 Nc3 b1B Nf3 g1B Kc6 b2 c5 g2 Bd3 Ngf6 Bg6 Be4 g8N Bh2 Rg1 Ne8 Nf6 b1N Nd7 Bh6 Nb8 Rf8 Qh4 Rf5 Qe1 Bg3 Ba3 Bh4 Be5 B4g5 Bd4 Re5 Rh1 g1B f5+ Kf6 Rh2 Bf2 Rg2 Nf4+ Kb5+ Be6 Rg3 Bd5 c6 Bg1 c7 Bf2 Ne2 Ndc3+ Kc5 d1N c8B Nd2 e4 Bc4+ Kc6 Be3 Nc1 Bf1 Na2 Nce2 Nc3 Bg2 Bdc5 Bg1 Be3 Ra5 Rg4 Nb2 Rg3 Na4 Nd1 Nac3 Rg4 Bh4 Ng5 Ke5 f6 Bf5 Rg3 Bg4 f7 Bf2 Bec5 Be3 f8Q Bg1 Bd6+ Kd4 Qh8+ Kc4 Bdc5 Bd4 Qf6 Be5 Be3 Bc7 Qe5 Bd8 Rf3 Nd3 Rf7 Ndf4 Rg7 Bf2 Bec5 Be3 Bd4 Nb3 Bdc5 Bc1 Be3 Nd2
2q1QQ2/K2rQ2B/NR1r2N1/1rq1p1r1/N5b1/1q2Pp2/1R1qBQ1b/2k3q1 w - - 0 1 legal: proof: f4 e5 d4 c5 g4 cxd4 b4 a5 Qd2 axb4 Qd3 h6 Qd1 Nc6 Be3 Nge7 Bc1 Ng6 f5 Nf4 Be3 Ne6 Bc1 Ne7 Bg5 hxg5 fxe6 f5 Qd2 f4 Qd1 Nf5 gxf5 Rh4 Qd3 Rh3 Qd1 Rh8 Kf2 Ke7 a4 Kf6 h4 d5 c4 b5 h5 d3 e7 b3 e8Q g4 a5 Kg5 a6 b4 c5 g3+ Kf3 g2 h6 b2 h7 d2 c6 d4 Ke4 d3 c7 f3 f6 b3 a7 Bg4 c8Q Bc5 f7 Rg8 Qb7 Qc8 Kd5 Kf4 h8N Ke3 f8Q g5 Qc2 d1Q Qbe7 d2 Nc3 b1Q Nb5 b2 Rh6 Qbc1 Rh2 b1R Nc7 Rb5 Kc6 Rab8 Qa2 Qb3 a8B d1R Rb1 Qd2 Ng6 Ba7 Rb2 Rg7 Rh6 Bb6 Nh3 g1Q Nhf4 Qa5 Q8d7 Qd8 Rc2 Qh1 Nh8 Bh3 Qef7 g4 Nd3 g3 Qde8 g2 Nb2 Rg5 Na4 Qa6 Re6 Bg4 Q7e7 Qh4 Qb2 Qf2 Bb7 Qa8 Na6 Qdd3 Rh6 Rd8 Rd6 Bd4 Kc7 Bc5 Be4 Qdc3 Rb6 R1d6 Bh7 Bd4+ Rc6 Qc5 Ng6 Qe1 Qb1 Qc1 Rb2 Q1c2 Qa1 Kd2 Qb1 Bf2 e3 g1Q Be2 Bg3 Qf1 Bh2 Qf2 Kc1 Nc3 Qd4 Rb6 Qcd2 Na4 Qad5 Qfg7 Qe6 Kb7 Qc5 Ka7 Qec8 Qgf8 R8d7+
n3q3/6B1/B1NQbr2/R1q2nq1/1pbpR1R1/1r1kP2R/1Kp1NnN1/2Q5 w - - 0 1 legal: proof: c4 c5 b4 e5 d4 h5 f4 exf4 g4 a6 b5 axb5 gxh5 bxc4 Qc2 c3 Qb3 c4 Qd1 Bc5 dxc5 Qb6 Qd2 Qf6 Qd1 Qd8 a4 Ke7 h4 Ke6 c6 Kf5 a5 Ke4 c7 f5 e3 b5 a6 d5 h6 g5 a7 c2 Kd2 g4 Kc3 b4+ Kb2 f3 h5 f2 h7 d4 h6 g3 Nh3 g2 Qd2 g1Q Ra5 Nd7 Nf4 Qe8 Rh4 Nb6 Ng2+ f4 Rg4 Be6 c8N Nf6 Ne7 Rf8 h8Q Rc8 h7 Na8 Be2 f1N Nc6 Ng3 Qe1 Rf7 Qf8 Nf5 h8R Rcc7 Bd2 c1Q+ Ka2 Rc8 Qd6 c3+ Ka1 Rcc7 Ba6 Rf8 Rh3 Qc2 Rg8 f3 Qc1 f2 Be1 f1B Bh4 Bfc4 Rg4+ Kd3 Re5 Ne4 Bf6 Rc8 Bg7 Nf2 Ree4 Rc7 Qd7 Rf6 Qd6 Nb6 a8R Ra7 Rb8 Na8 Rb5 Rc7 Ra5 Ra7 Nh4 Qg3 Ng2 Qh4 Nd2 Qg5 Nf3 Rc7 Ng1 Ra7 Ne2 Rc7 Bc8 Ra7 Ra2 Ra3 Ba6 Rb3 Ra5 Qd1 Qg3 c2 Qd6 Qh1 Ka2 Qh2 Ka1 Qe5 Ka2 Qc5 Ka1 Ra3+ Kb2 Rb3+
3q2kb/BNQB2B1/3Nrnr1/Kp3Rp1/2B1rb2/2R1Pq1q/QpnR4/8 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 g5 b4 axb4 f4 Bf5 h4 Bg6 h5 e6 f5 exf5 hxg6 fxg4 Qc2 g3 Qb3 Qd7 Qd1 Qd8 a4 h5 d4 f5 Kd2 c5 a5 b5 e3 c4 a6 h4 d6 h3 a7 b3 Kc3 h2 Kb4 g2 d5 f4 g7 Kf7 Bb2 c3 Nf3 g1Q Nfd2 f3 Bh3 c2 Bd7 c1B Ra3 f2 Nc4 f1Q Qc2 Rh7 Na5 Qe8 Nb7 Qe6 Nc3 Na6+ Ka5 Re8 a8Q Rh4 Ne4 Nb4 Qc7 Nf6 g8B+ Kg7 Bd4 Qeh3 Ba7 Qff3 Bge6 b2 Rc3 Qgd1 Rf1 h1R Rf2 Bd2 Bg8 Qfg2 Rf5 Qgf3 Bde6+ Nd7 Qad8 Qa1+ Ra3 Rc1 Qc4 Nb6 d7 Bc3 d6 N6d5 Qdc7 Be5 Qa2 Rc6 Bgf7 Nc2 d8B Qad1 d7 Bfd6 Rc3 Rh6 Be7 Rg6 d8R Bd4 Rd7 Bf4 Bf8+ Kh7 Rd6 Bh8 Bg7 Nf6 Bc4 Re5 Be8 Qd3 Rd7 Rce6 Rd8 Qd6 Rd7 Qf8 Rd2 Kg8 Ned6 Re4 Bd7 Qd8
4Q1nN/R4NR1/1pB1q2p/P3q3/1br1r1KN/k3b3/p3nBRq/3QnR2 w - - 0 1 illegal: No possible last move
n6n/BQ3qN1/P1b2Q2/nq2p3/kr2rqR1/b1KBp1Rp/3Q2N1/6RQ w - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 h4 g5 hxg5 d5 b4 axb4 cxd5 c5 Rh6 cxd4 Rh3 Qb6 Rh1 Qd8 Kd2 Kd7 f4 h5 g4 e5 a4 b5 d6 Kc6 f5 b3 g6 b4 g5 h4 d7 b2 g7 d3 g6 b3 a5 Kb5 f6 h3 a6 Nc6 f7 Qg5+ Kc3 Nh6 g8R Bb7 d8Q Na5 g7 Qf4 Be3 Ba3 f8Q Rb8 Nf3 Bc6 Rg1 Nf7 Rg3 Ka4 Nh4 d2 Ba7 e3 Nf5 Rb4 Bd3 Rh4 Qh1 d1Q Nd2 b1Q Nf3 b2 Ne1 Qdf3 Ng2 Nh8 Qff6 Qd5 Qd7 Qf7 Qb7 Qbf1 Re1 Qe2 Rg1 Rg4 Be4 Qb5 Bd3 Rh4 Rc8 Re4 g8Q Rg4 Ng7 b1N+ Kc2 Rb4 Qgd8 Nd2 Kc3 Ndc4 Qdd7 Nb6 Rg8 Na8 Qd5 Qg5 Qa2 Rge4 Qd2 Qe7 Nh5 Qf4 R8g4 Qe8 Ng7 Qf7
r1nn4/R3N1pq/7q/QnN2p1k/p1B1r3/1b5K/B2RR1Pb/R1qN2Q1 w - - 0 1 legal: proof: b4 c5 a4 b5 c4 e5 f4 d5 cxd5 exf4 Ba3 Qe7 axb5 Qg5 b6 Qh6 b5 Qxh2 Bb4 cxb4 Kf2 f5 d4 Kf7 e4 Kg6 b7 a5 e5 h5 e6 a4 e7 f3 e8B+ Kg5 d6 b3 d7 h4 d8R h3 b6 b2 d5 Ne7 d6 Na6 b8R Qe5 d7 h2 b7 Qc3 Kg3 f2+ Nf3+ Kh6 Kh3 Qe3 Bc4 f1Q Bef7 Nc7 Nc3 b1N Bg8 Qf4 Nh4 Na3 Ng6 Ne6 Ba2 Q1c4 Re1 Nb5 Re2 Kh5 Qg1 Qh6 Nd1 Qcc1 Bf7 Ra5 Ra8 h1Q+ Qh2 Rh7 b8N Bb7 Bg8 Nc8 Ra7 Bd6 Ne7 Bd5 Na6 Bb3 Nc5 Ra6 Rd2 Rh8 Re8 Nd8 Bc4 Qh7 Rc7 Ra8 Ra7 Qe1 Qg1 Bh2 Nc3 Qe6 Nd1 Nb7 d8Q Qeh6 Qa5 Nd8 Nc6 Rf8 Ree2 Rg8 Ne7 Re8 Ng8 Re5 Ne7 Re4
5BNb/1n2qpP1/n3QQp1/q2Q4/3pr2R/r2RQ1br/2BN3k/2Kq2R1 w - - 0 1 legal: proof: b4 a5 d4 axb4 g4 c5 h4 h5 f4 hxg4 h5 Rh6 f5 Rha6 h6 cxd4 h7 Qb6 h8Q g6 Qe5 Bg7 a4 Bh8 c4 Qf6 e4 Qg7 f6 b5 fxg7 d5 Kd2 Kd7 a5 d3 c5 b3 Qh2 Ke6 e5 Kf5 c6 b2 c7 b4 e6 d4 Qa4 b3 Qh7 Kf4 Qb4 Kg3 Qa4 Nf6 Qe8 Nfd7 Bg2 Nc5 Rh4 Nb7 Nh3 Kh2 Qh6 g3 Be4 g2 Qe3 g1B Kd1 d2 Bc2 Rc6 a6 Rc3 a7 Bf2 Qb5 Bg3 Qd5 Bd7 exd7 e5 d8Q Na6 Qf6 Re8 a8R e4 c8Q Re5 Na3 b1Q Nc4 Qa2 Ba3 b2 Bf8 Qa5 Qce6 Ra3 Nf2+ Kg1 Qef4 e3 Ng4 Re4 Nh6 Kg2 Ng8 b1Q+ Ke2 d1R Nd2 Rh1 Rc8 Qbb4 Rc3 Rh3 Rg1+ Kh2 Kd1 e2+ Kc1 Qbc5 Qe3 Qe7 Rd3 e1Q+ Bd1 Qe2 Bc2 Qd1+
2R1NBr1/1q2pn1k/n4rN1/1qpK4/1R2QP1q/1p4b1/R3R3/1Qbb1B1Q w - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 Ke2 Kf7 Kf3 Kg7 Ke4 b5 g4 c5 d4 h5 d6 h3 d5 a2 d7 h4 d6 h2 g5 b4 f6+ Kg6 f7 b3 Na3 h3 Ne2 Kg7 g6 Ba6 Nc4 Qc8 d8R Nh6 d7 Ng4 Bh6+ Kf6 g7 Kg6 g8R+ Kh7 Nd6 Ne5 Rg4 Rg8 Nf4 Be2 Kd5 Na6 Ng6 Qb8 Rc8 Qb5 Qb1 Bd1 d8Q Bg7 f8Q Nf7 f3 Be5 Ne8 Bg3 Rb4 Ra7 Rg1 h1Q Rg2 h2 f4 Rc7 Qe4 Rc6 Re2 Rf6 Qc7 Qf3 Qc6 Qg4 Qb1 Qh4 Qe6 h1Q+ Qee4 Qg2 Bg7 Nd8 Qf7 Qf3 Qe6 Nf7 Qh3 Qg2 Qh1 Qf3 Qc1 Qg2 Bf8 Qf3 Rb1 a1B Rbb2 Qg2 Ra2 Bb2 Qb1 Bc1 Bg7 Qgh3 Bf8 Qhd7+ Nd6 Qc7 Ne8 Qcb7+
3q2nr/k1Ppb2b/7r/2ppQ3/3NNNqR/BRBQn1b1/2Kn1N2/4B3 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c6 b4 axb4 c4 Rh7 d4 Qa5 d5 Qd8 c5 Rh6 Bb5 cxd5 c6 Rh7 c7 Rh8 Bc6 bxc6 Kd2 e5 h4 g5 f4 e4 a4 b3 a5 b2 Nh3 g4 Ra3 c5 a6 g3 a7 g2 f6 g1Q f7+ Ke7 f5 Kd6 f6 Kc6 Rb3 Ne7 Nc3 Bg7 f8N Rh6 f7 Rd6 h6 Qg3 h7 Qe8 h8B Bf6 h5 Ba6 h6 Nf5 h7 b1N+ Kc2 e3 Ng6 e2 f8N e1B Ngf4 Qg4 N8e6 Bg3 Nf2 Bg5 Rh4 Bd3+ Kb2 Be4 Qd3 Ne3 Bg7 Bg6 h8B Bh7 Nce4 Qf8 Bd2 Qg8 Be1 Nd2 Kc1 Qe8 Bb2 Qe7 Rc3 Kb7 Rb3+ Rb6 Bhg7 Nc6 Bgf6 Rh8 Bfd4 Ng2 Kc2 Qd8 Bc1 Ne7 Ba1 Rb5 a8Q+ Kb6 Bf6 Ng8 Qa1 Rb4 Be5 Be7 Ba3 Ka7 Bg7 Rb6 Qf6 Bd6 Qf5 Rc6 Bc3 Be7 Nd4 Rh6 Qe5 Ne3+
n3q3/2p3N1/pqqR3B/QB1R2N1/b4P2/1krb2K1/1rn1pQR1/Q2Q3r w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 b6 fxe4 b7 Qd5 Ra3 Qd4 Ra1 Qd8 h4 g5 b4 gxh4 b5 Bd7 Rh3 Bg4 Rh1 Bc8 Bb2 e6 Ba3 a6 Bc1 Bc5 Ba3 Bb6 Bc1 Ba7 b6 Qe7 bxa7 Qd8 g4 Kf7 f4 h5 Kf2 e5 d4 Ke6 g5 Kd5 g6 e3+ Kg2 e4 g7 e2 Qd2 e1Q Qe3 h3+ Kh2 c3 Ra3 c2 Rd3 Kc4 d5 h4 d6 Ne7 g8R Qe8 d7 Nbc6 b8Q Qf2+ Rg2 Nd4 d8Q Bd7 Nf3 Nc8 Bb2 c1R Qb6 Ba4 Nc3 Rb8 a8Q Nc2 Qa5 Nb6 Ng5 Kb3 Ne6 Rb7 Qec5 e3 Rd5 Rh5 Bb5 e2 Qa7 Na8 Ne4 Rh8 Qcd6 Qb6 Ng7 Rh6 Q6d7 Rc6 Qf5 Rc3 Qff6 Rb1 Rhd1 Ra1 Kh1 h2 Ng5 Rb8 Ba3 Rb1 Bf8 Rb2 Rg4 Rc8 Kg2 h1B+ Kh2 Be4 Rg2 h3 Qd7 Bd3 Kg3 h2 Qdd6 Qbc6 Qf2 h1Q Rd2 Qh6 Qfe5 Rb8 Qd8 Rc4 Rd1 Rb1 Qa1 Qb6 Qd7 Qhc6 Rd2 Rh1 Rd6 Bh7 R2d5 Rc3+ Rd3 Qd4 Re6 Rd8 Nf5 Ne1 Bh6 Qdb6 Ng7 Bf5 Qdd4 Rd5 Rd6 Bg6 Qde3 Rd4 Rd1 Rd2 Qd3 Rb2 Rd2 Nc2 Rd1 Ne3 Qdb1 Bh7 R1d5 Bd3 Qd1+ Nc2
k4B1K/p2r4/1q4Rp/r5rp/1nR2Rqb/2QP1b1n/2N1BQNb/B4B2 w - - 0 1 legal: proof: h4 e5 a4 d5 c4 b5 cxd5 g6 h5 gxh5 f4 exf4 e3 fxe3 axb5 Qd6 Qg4 Qf6 Qd1 Qd8 Ke2 Kd7 Kd3 f5 Kd4 c5+ Ke5 Kc7 b4 Kb7 g4 h6 g5 e2 b6 e1R+ Qe2 f4 b5 f3 g6 f2 g7 c4 d6 c3 d7 c2 Ra4 Rh7 Rc4 Ne7 Kf6 Rd1 g8B Re1 Rhh4 Rg7 Na3 Rg2 Rhf4 Na6 Nh3 Nc7 Bb2 c1B Ba1 Rg1 Nc2 Rg5 d3 Rb8 Be6 Na6 Bg4 Nb4 Qd2 Re4 Qc3 Ree5 Bge2 Ng6+ Kf7 Ba3 Kg8 Be7+ Kg7 Qc7 d8Q Bg4 Qdd4 Ka8 Qe3 Rd8 b7+ Kb8 Kh7 Qb6 Qf3 Rd7 Kg8 Nh4+ Kh8 Ng2 Qe3 Rc5 Qg3 Bf3 Qh4 Kc7 b8B+ Kb7 Bd6 Ka8 Qg3 Bd8 Bf8 Bb2 Rfd4 Bc1 Nf4 Bd2 Qh2 Be1 Rd6 Bc7 Rg6 Bd6 Nd5 Bg3 Nde3 Nf4 Ng2 Nh3 Qg1 Bh2 Rf4 Qe6 b6 Qg4 Rc4 Ra5 Rf4 Bg3 Rc4 Bh4 Qh2 Bd2 Qg3 Bf4 b7+ Kb8 Qh2 Bd6 Qg1 Bh2 Rf4 Bc6 Rc4 Re7 Rf4 Kc7 b8R Rd7 Re8 Kb7 Ree4 Ka8 Rc4 Bd5 Nge1 Bf3 Bg2 f1Q Qc5 Qg1 Bgf1 Rb5 Ng2 Ra5 Q5d4 Qe3 Qb6 Qee6 Qf2 Qb6
2N1n3/2r1Q2r/1N1bpN2/1NRB4/1p1bn2p/5kb1/2PRq1RQ/2B2bbK w - - 0 1 legal: proof: d4 c5 dxc5 d5 e4 dxe4 b3 a5 b4 axb4 h4 f5 g4 g5 Qd3 Qd5 Qf3 fxg4 Qd1 g3 Bc4 g4 Bf1 Qg5 hxg5 Bf5 Rh2 Be6 Rh1 Bc8 f4 Kf7 a4 Kg6 c6 Kf5 a5 h5 a6 b5 a7 e3 c7 Ke4 f5 e6 f6 e2 f7 h4 g6 b3 g7 b4 Ra5 b2 Rc5 g2 Kf2 Bd6 f8Q Rh7 Rh2 Na6 Nf3 g1B+ Kg2 e1B Ne5 g3 Nd7 Bd4 Bc4 Nf6 g8R Ne8 Na3 b1Q Qd2 Qb3 Nb5 Qd3 Qg7 Qe2+ Kh1 Kf3 Qe7 Rb8 a8N Rb7 Nf6 Bd7 c8N Rc7 Rd5 Nc5 Nab6 Ne4 Rc5 Bc6 Rg2 Bb7 Bd5 Ba6 Rg1 Bef2 Rd1 Be1 Qg5 Bef2 Qe5 Be1 Rd2 g2+ Kh2 g1B+ Kh1 Bef2 Qh2 Be1 Rg2 Beg3 Nc3 Bd3 Nb5 Qe3 Qf7 Bf1 Qe7 Qe2
R3b1RQ/3b1q2/2r1p1Pn/pNpn1kN1/3n2N1/BBr1Qn2/4Nb2/1K1R4 w - - 0 1 legal: proof: c4 d5 e4 g5 h4 gxh4 a4 b5 axb5 f5 cxd5 fxe4 d3 exd3 Kd2 Kf7 f4 Kf6 g4 h5 b4 c5 g5+ Kg6 b6 a6 b5 e6 b7 h3 b6 h4 d6 h2 d7 h3 Na3 Qc7 d8R Bd7 Qb3 Bh6 Nb5 Kf5 g6 Nc6 b8N Ne5 Nc6 Rc8 Ba3 Nf3+ Kc1 d2+ Kb1 d1N b7 Ne3 b8Q Nd5 Qe3 a5 Ne2 Bg7 Ne5 Nh6 Ng4 Bd4 Rg8 Be8 Bg2 Qf7 Rd1 h1B Ra2 h2 Rad2 Rc6 Qc8 Ne5 Qa8 Nc7 Bd5 Nf3 Bb3 Bg2 Qd8 h1N Qh4 Ng3 Qh3 Bf6 Rd8 Nd5 Ra8 Bc3 Qh4 Bd2 Qd8 Bd7 Qf8 Be1 Qg7 Rh7 Qh8 Bf2 Qec3 Ke4 f5 Bh1 f6 Ngf5 Qd2 N5d4 Qc3 Kf5 Qe3 Qe7 f7 Qf6 f8N Qf7 Qg7 Rh8 Nh7 Bg2 Ng5 Bf1 Nc1 Rh7 Nc3 Bb5 Qh8 Be8 Qe1 Rd6 Nd3 Nd2+ Ka1 Bbd7 Nc1 Rc6 Rg7 Ng8 Nb5 Rh3 Qg1 Rc3 Ne2 Nh6 Rg8 N2f3 Kb1 Bg3 Qe3 Bf2
kr1K4/3b2Bb/p1R1NB2/Np1n4/1RB2rbq/6pB/n3PQr1/1R2bQ2 w - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 g4 exf4 gxh5 a6 a4 Qd7 a5 Qe7 b4 Qf6 b5 Qd8 Qa4 axb5 a6 Ke7 a7 Ke8 Qa6 bxa6 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb7 d4 f5 h4 g5 h6 g4 h5 f3 h7 f4 d6 g3 h6 f2 d7 c4 Ke6 f3 d5 c3 d6 c2 Bh3 f1B Bb2 c1R Na3 f2 Nf3 Qg5 Nd4 Rc2 Rc1 Qh4 Nc4 Rc3 Na5+ Kb6 Kf7 Rc4 Ke8 Qe4+ Ne6 Qh4 d8R Nc6 d7 Nge7 Bf6 Rb8 a8B Nb4 Bd5 Rf4 Rc6+ Ka7 Bc4 Bg2 Rb1 f1B Bg7 Ned5 Bf6 Rg8 h8B Na2 h7 Ka8 Bhg7 Be4 h8Q Bf5 Qh5 Rh8 Qf3 Bh7 Qf2 Bg2 Qf1 Bf3 Rb4 Bb7 Rdc8 Bg4 d8Q Bc5+ Kd7 Bf2 Qb6 Be1 Rf8 Bc8+ Kd8 Rf2 Qd4 Rg2 Qdf2 Rg8 Bh6 Rg5 Bhg7 Rf5 Rf7 Rf4 Rd7 Nc7 Rd1 Nd5 Rdb1 Bd7+
3k2nb/6R1/KR4P1/q4p1Q/1r1B2q1/R4Qpn/4p2R/rBbNqNNq w - - 0 1 legal: proof: e4 b5 d4 h5 g4 hxg4 a4 c6 d5 cxd5 axb5 dxe4 Qd3 e3 Qd2 Rh5 Qd1 Rh8 f3 g5 Bd3 g3 Qd2 g2 Bf1 g4 Bc4 g3 Bf1 Bb7 Qd1 Be4 Bc4 Bf5 Bf1 Bg4 fxg4 Rh7 Nf3 Rh3 Ng1 Rh8 Ke2 a5 Kd3 e5 Kc4 f5 b4 d6 h4 e2 g5 e1Q h5 e4 b6 e3 Kb5 d5 c4 a4 g6 a3 h6 d4 h7 a2 c5 d3 c6 d2 b7 Qc7 Bd3 Na6 b8R+ Ke7 Rb6 Nb8 Rh2 Ra7 Nc3 Qf1 Qf3 d1Q Bb2 e2 Bb1 Qde1 Nd1 Nd7 Bd4 Bh6 Rb7 Qd8 c7 Nc5 c8N+ Ke8 Ne7 Nd3 Rc7 Nf2 Nd5 Bc1 N5e3 Nh3 Rg7 Qd5+ Kb6 Kd8 b5 Qff2 Nf1 Qa8 Qb3 Qf4 Qd3 Ra4 Qf3 Qaa5+ Kb7 Rb4 b6 Qc5 Ka6 Qg4 b7 Qc7 Qf2 Qcc3 Nf3 g1Q b8R+ Qc8+ Rbb7 Qc5 Rb6 Qh1 Ng1 Qcd5 Qg2 Qa5+ Kb7 Nf6 Qf3 Rf8 h8Q Ng8 Qh5 Rf6 Be4 Rc6 Rb1 a1B Rb3 Rc2 Ra3 Ra2 Bc2 Bc3 Bb1 Ra1 Bc5 Be5 Bd4 Qd5+ Ka6 Bf6 Rf7 Bh8 Rg7 Qa5+
1n1N1qkn/1NK4q/3pq3/B3qb2/N6Q/3PQ2b/2RRNrpp/R1Br4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 fxg4 f5 e6 axb5 c5 b4 cxb4 h4 g5 f6 g3 Bh3 Bh6 Bf5 exf5 Ra6 g4 Ra1 Bg5 hxg5 Bb7 Nf3 Ba6 Ng1 Bc8 c4 Kf8 e4 h5 Ke2 a5 Kd3 h4 Kd4 g2 Kd5 g3 Kd6 f4 g6 a4 c5 f3 d3 b3 g7+ Kf7 c6 f2 b6 f1B b7 b2 c7 a3 e5 h3 e6+ Ke8 e7 Kf7 e8N a2 Qe1 h2 Nc3 b1Q Qe3 Ne7 Nge2 g1Q Na4 Bh3 g8R Qf2 Rd1 g2 Rd2 Qe1 Rg5 Rf8 Rc5 Qb3 Rcc2 Ng6 Ng7 Qb1 Ne6 Nh8 Nec5 Kg8 f7+ Kh7 Ne6 Qb4+ Nec5 Qbh4 Ne6 Qe8 Nd8 Kg7 Nb6 Qh7 Na4 Nc6 b8Q Bf5 Qb4 Nb8 Rb1 a1Q Qh4 Qa2 Ra1 Qae6+ Kc5 Qe5+ Kb6 Q8e7 Nb2 Ra2 Na4 Re8 f8B+ Kg8 Bg7 Qf8 Bf6 Bh3 Be7 Bf5 Bb4 Bh3 Ba5 d6 Nb7 Bcd7 c8N Bdf5 Na7 Re7 Nc6 Rf7 Rb1 Ra1 Ncd8 Qe6 Rbb2 Qg3 Ra2 Qge5 Ra3 Be4 Raa2 Rf2 Ra3 Bef5 Raa2 Qh5 Kc7 Rb1 Ra1 Qhh6 Ba3 Rd1 Bc1 Qh7+
kN1Nr3/2r1BbKP/n4pp1/2R4r/1pb2B2/1r3RqQ/1q1QQB1n/7Q w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 d5 cxd5 a5 h4 axb4 g3 Be7 h5 Ra4 Bh3 Ra7 Bf5 Bh4 gxh4 Ra8 Bg6 hxg6 Kf2 Kd7 Kf3 b5 Kg4 c5 e4 g5 Kf5 g4 d4 g3 a4 c4 e5 Kc7+ e6 Kb7 h6 f3 d6 g2 a5 f6 Kg6 f2 d5 f1B d7 b3 d6 b2 a6+ Ka7 h7 c3 h5 c2 h6 b4 e7 Qf8 d8B Bg4 e8Q Bd7 Nf3 g1R+ Ng5 Ba4 d7 Bfb5 Na3 b1Q Be7 Nc6 d8B Bb3 Bf4 c1R+ Nc2 Qa2 Nd4 Re1 Rf1 Bd5 Nf7 Qb2 Rf3 Bdc4 Ra5 Nb8 Qd2 Re3 Bdc7 Be6 Nd8 Bbc4 Rc5 Rb3 Bg3 Bed5 Bcf4 Be6 Bf2 Rcc3 Bed6 Qe7 Qb5 Qc7 Qe8 Bed5 Qee2 Rc2 Be7 Qe5 N8e6 Qd6 Kf7 g6 Kg7 Rc1 Nd8 Bf7 Bh2 Qg3 N4c6+ Kb6 a7 Na6 Nb8 Rcc3 Nbc6 Rb8 a8Q Kc7 Nb7 Re8 Nbd8 Rc2 Qc8+ Kb6 Nb8 Ka7 Qh3 Ka8 Qd4 Rd2 Qc3 Rd7 Qcc2 Rc7 Qcd2 Qg4 Bf4 Qg3 Bed6 Ne7 Qh1 Nc6 Be7 Ne5 Qh3 Ng4 Qh1 Rhf8 h8Q Nh2 Ne6 Rec8 Nd8 Re8 h7 Rb7 Qg8 Rb5 Qf8 Rc7 Qg8 Bfd5 Qge6 Ra5 Qh3 Bf7 Rc6 Re5 Rc5 Rh5
k3KN1N/b1QR1Q2/1qPp2q1/1pn2n2/rr2Qr2/4npBR/5BNq/6Q1 w - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 Na3 h5 Nh3 f5 Bg2 f4 Ng1 b6 Nb1 Ba6 Be4 Bd3 Bf3 Bf5 gxf5 Nh6 Bg4 hxg4 Kf2 Ng8 Kf1 Ra3 Ke1 Ra8 Kd2 g5 Kd3 f3 Ke4 d6 Kd5 Kd7 a4 Kc8 Ke6 Kb7 Kf7 d3 c4 b5 e4 g3 h4 d2 a5 g4 f6 g2 h5 g3 a6+ Ka7 e6 b3 c5 b2 e5 Ne7 h6 Qb6 h7 Nd7 c6 Qc7 Nh3 g1R Nf4 g2 Ng6 Rf1 Rh3 g1Q Nc3 b1N Ne2 Rc8 Nef4 Qcb6 Ng2 Kb8 a7+ Kc7 a8Q Qbf2 Qa5+ Kb8 Qd8 Re1 Ra7 Nc3 Ke8 Nf5 e7 Nd5 e6 Re4 f7 Bh6+ f8N Qh2 Qg1 d1Q Bf4 Qb6 Bg3 Nc5 Rd7 Be3 Bf2 Rg8 h8B Qd3 Be5 Ra4 Nh8 Rgg4 Beg3 Qe4 Kf7 Rf4 e8Q Rb4 e7 Ka8 Qc7 Rb8 Qed8 Bd4 e8Q Nde3 Qf6 Qc2 Qe4 Rb7 Qc1 Ra7 Ke8 Raa4 Qf7 Qb1 Qee7 Qe4 Qb1 Qe6 Qg1 Qg6 Qe4 Nb7 Ne6 Qa5 Ng5 Ba7 Ne6 Nc5 Nf8 Qb6
3nr3/b1k1p1pb/8/bnqbN3/2Q2P1Q/1R1BbQq1/1RpBQ3/1K3NB1 w - - 0 1 illegal: No possible last move, all moves rejected
3QN2n/3p1B1p/3qRNpN/1k5P/1r2nR2/b1r1Br2/B1Q1r3/1q1Nr2K w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Kf2 Bb7 Ke1 Be4 Kd2 exf4 Ke1 f3 Na3 f4 Nb1 Bf5 gxf5 Be7 Na3 Bd6 Nb1 Bf8 Kf2 a5 h4 g6 e4 a4 c4 d3 b4 a3 b6 a2 f6 Qc8 b7 Ra4 e5 Kd8 f7 Kc7 b5 Kb6 e6 Qc5+ Be3 d2 h5 Nc6 b8N Ra6 e7 Bg7 f8Q Ra3 e8B Ra7 Qe1 Rc7 Ne2 Qd4 Kg1 Nge7 c5+ Ka5 b6 Ka4 b7 Ne5 c6 Nc4 Bf7 Nd6 Nbc3+ Kb4 Nd1 Ng8 Qc8 Nh6 Na6+ Kb5 Nb4 Bf8 Rh4 f2+ Kh1 f3 Rf4 Ne4 Nd5 Ba3 Nf6 Re8 b8Q+ Qb6 Rc1 a1Q Rc4 Qb1 Ng3 Rb7 c7 Qd6 Nf5 Re6 Bh3 Re7 Rc6 f1R+ Kh2 Rf2+ Kh1 Re2 Ba2 Nf7 Nh6 f2 Bhe6 Nh8 Bf7 Re6 Qd8 Re5 c8N Rc5 Qbc7 Rc3 Ra6 Qd5 Re6 f1R+ Bg1 Rff3 Be3 Qd6 Qc5+ Ka4 Qc4+ Rb4 Qc5 Qf8 Nd6 Qe7 Nde8 Qd6 Qcc8 Kb5 Qcc7 Rcb3 Qc1 Rc3 Qc2 dxe1R+
1b3qQ1/R1Pn2NQ/n1rQ2rQ/n3nR2/N1BNq1pp/4p3/4K3/B1k1n3 w - - 0 1 legal: proof: g4 b5 h4 c5 a4 f5 d4 cxd4 e4 fxe4 axb5 Na6 f4 Bb7 f5 Qb8 h5 Bd5 h6 Be6 f6 Bf5 gxf5 Qh2 Bd3 Nb8 Be2 Nxh6 Bf1 Ng8 c4 Kf7 b4 a5 c5 e5 b6 g5 c6 d5 b5 h5 b7 g4 b6 a4 Qe2 d3 Bg2 e3 Qb2 d4 Nd2 e2 Rb1 a3 Ndf3 a2 Nh3 a1N Bg5 h4 Bc1 e4 Kf2 e1N Nf4 d2 Ne6 d1N+ Ke2 e3 Ng7 Rh6 Qc2 Nb2 Rf1 Nb3 Ra1 Na6 b8N Qe5 b7 Na5 Nd7 Rg6 b8Q Bd6 Nc5 Nbc4 Na4 Qe4 Bb2 Ne5 Qd8 Bb8 c7 Ra7 Qd6 Rb7 Ra2 Rb6 Ba1 Rc6 Bh3 Nb4 Rf2 Na6 Bf1 d3+ Kd1 d2 Ke2 Ne7 Nd4 Nd5 Qd3 Nb6 Rf3 Kg8 f7+ Kh7 f8Q Nbd7 f6 Kh6 f7 Kg5 Rg3 Kf4 Qg8 Qf5 f8Q Qf6 Qdc4 Ke4 Rf3 Qd8 Qfe7 Qf8 Qce6 Nac5 Rf5 Na6 Bh3 d1Q+ Kf1 Qb3 Ke2 Qd5 Bf1 Rg5 Qh6 Rg6 Rb2 Qe6 Rb7 Qd5 Ra7 Qc4+ Kd1 Qe6 Bc4 Qd5 Bb3 Kd3 Qef7 Qc4 Qgh7 Qd5 Qfg8 Qe4 Nb2+ Kc3 Ke2 Ndc5 Bc4 Ncd7 Nde6 Kc2 Na4 Kb1 Nd4 Kc1
1b2NNq1/R3r3/1k1B4/1p1rn3/bP3Q1Q/1bq1R1qp/1B3p2/B1qBNK2 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 b4 gxh4 Rh3 a5 Rh1 Na6 Ba3 Nc5 Bc1 Nb3 axb3 a4 Bb2 axb3 Ba3 Bh6 Bc1 Bf8 d4 Kd7 g4 f5 e4 c5 g5 Kc7 d6+ Kb6 g6 h5 e5 b2 g7 f3 d5 f2+ Ke2 h3 e6 c4 e7 f4 e8N h4 d7 c3 d6 c2 Ra5 h2 Ra7 h3 Nf3 Rh7 Nbd2 b1Q Ne5 Ne7 g8Q Qb2 Qg4 Nc6 Ng6 Ne5 Qe1 Qc3 Bb2 c1Q Nf3 Re7 Qg5 Qdc7 d8B Be6 d7 Bb3 Qg4 Bg7 Nf8 Rc8 Rg1 h1Q Rg3 Qg2 Qd2 Bh8 Ne1 Qd5 Qg5 Qg8 Qh4 Ba4 Bg2 f1B+ Kf2 f3 Qdf4 Ba6 Bf1 Ra8 Be2 Bc4 Bd1 Bcb3 Kf1 f2 Re3 Bf6 Qhg3 Bh4 Qgg5 Bg3 Qgh4 Rg7 Be7 Rd8 Bd6 Re7 Ba1 Bh2 Re4 Qcg3 Re3 Q7c3 Bb2 Rc8 Ba1 Rc5 Bb2 Rd5 d8B+ Kc6 B8c7 b5 Bb8 Nd7 Be5 Kb6 Bg7 Ne5 Bd6 Qh8 Bf6 Qhg8 Rd3 Nc6 Ba1 Q3g6 Qe3+ Qc5 Bf4 Qg5 Bfb2 Qd4 Qe4 Qdc3 Re3 Bg3 Bb8 Bd6 Qf5 Ne5 Qff4 Bc7 Ke2 Qg3 Kf1 Bd8 Bd6 Bc7 Qhh6 Bb8 Qhg5 Qg7 Qgh4 Qg8
2r1q2R/1rk4r/2qq2NR/p2n3N/BRpKN1r1/p1b3R1/Q2Q2BP/3b4 w - - 0 1 illegal: No possible last move, all moves rejected
1R2R1r1/b1rNB3/QnN2r1p/1qR5/b1q2Q1B/1r3p1N/1K1pP3/R3q2k w - - 0 1 illegal: No possible last move, all moves rejected
1qN2r1q/NR4B1/1Qpq2p1/Q4Bnk/Pnp2q2/4r3/1RB5/1bB1r1RK w - - 0 1 legal: proof: c4 h5 b4 f5 g4 hxg4 d4 d5 e4 a5 exf5 dxc4 d5 e6 d6 axb4 Qd2 c6 Qd1 Be7 Bh3 Bg5 Bf1 Be3 Qe2 Bb6 Qd1 Bc7 dxc7 Qe7 Qd5 Qd6 Qd1 Qd8 h4 Kf7 a4 b5 f4 g6 Kf2 g3+ Kg2 b3 h5 b4 h6 e5 h7 e4 f6 b2 f5 e3 Nc3 b1Q Ra2 e2 Nf3 e1Q Bd3 b3 Nb5 b2 Na7 Qb4 Nd2 Qe8 Qh5 Nh6 Ne4 Rf8 h8B Na6 Bc2 Qd6 Bg7 Nb4 Rg1 Qa1 Kh1 b1Q Qg5 Qae5 Rb2 Qf4 Qh5 Kg8 f7+ Kh7 f6 Bf5 c8B Qee5 Bd7 Rae8 Qg5 Qa1 Bc8 Qb8 Nd6 Qc5 Bd7 Re3 Ndc8 Qcd6 Be6 Bd3 Qa5 Bf5 Bb3 Bb1 Bf5 Rd8 f8R Nf7 Bd1 Ng5 Bdc2 Rde8 Rf7 Rf8 Ra2 Qad4 Rb7 Qd4e5 f7 Qed4 Bh8 Kh6 Rb2 Kh5 Bg7 Qc3 Bh6 Qh8 Bg7 Rfe8 f8Q Rd8 Qf6 Rg8 Qfd8 Rf8 Re1 g2+ Kg1 Rc3 Qdb6 Rg3 Kh2 g1R Rd1 Rf1 Re1 Re3+ Kg2 Rf2+ Kh1 Rfe2 Rg1 Re1
n1r3B1/kpRK3r/p4N2/Q1R1qq2/4NqB1/r3B3/Q1Ppbn1Q/Q4r2 w - - 0 1 illegal: No possible last move
NrBNb1bB/6p1/Q7/1RnRp3/1N4K1/1rb1Q3/BrPr1np1/B2k2r1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 b4 fxe4 g4 h5 Ke2 hxg4 Ke1 a5 Nc3 a4 Nb1 Qa5 bxa5 Rh5 Bf4 Rh6 Bc1 Rh8 Ke2 Kf7 h4 Ke6 f4 Kd5 b6 Kc4 b7 e5 a6 d5 f5 a3 h5 a2 a7 g3 h6 e3 Kf3+ d3 f6 e2 f7 e1R h7 g2 Nd2+ Kc3 Qe2 d4 Rb1 a1R Nh3 Ra3 Ng5 Bf5 Qe3 Na6 b8N Nh6 Nc4 Be6 Nb6 Ng4 Nc6 Bb4 f8Q Nc5 Qc8 Nf2 Nf7 Bc4 Qe6 Rhb8 h8B Rb7 Rh6 Rab8 a8B Ba5 Be2 Rg1 Nfd8 Bb3 Qc8 Bg8 Rd6 Ra2 Kg3 Bb4 Bg4 Ra3 Qg5 d2 Qe3+ d3 Be6 d1B Ba2 Bg4 Rd5 Bh5 Qe6 Be8 Q6h6 Rf7 Bb7 Ba5 Ba6 Rfb7 Na8 Rb5 Bc8 R5b6 Qe2 d2 Qa6 d1R Qh3 Rd4 Bb2+ Kd2+ Bc3+ Ke3 Ba1 Kd2+ Rb3 Bc3 Qh6+ Kd1 Qe3 Rd2 Kh4 Rb4+ Kg5 Re4 Rb5 Rb4 Kf5 Rb1 Nb4 Rb2 Kg5 Rab3 Kh4 Nh1 Kg4 Nf2+
N1B2b2/1p1n4/K4Rn1/B6Q/1bQrp1B1/1Bb2nk1/2NR1pPn/2b1r1Q1 w - - 0 1 illegal: Other
3q4/KR1Q2N1/q1r3Bk/rq2Q2p/1p4Rr/3prBPr/2nB1QN1/4bQ2 w - - 0 1 illegal: No possible last move
K1nQ2rN/RB1q1R2/1B1p2Nk/2Bn1nR1/6Pq/1nB3qp/5Qp1/2b4n w - - 0 1 legal: proof: d4 f5 b4 a5 f4 axb4 g4 c5 e4 fxe4 f5 cxd4 Bh3 g5 Bf1 Ra5 f6 Rf5 h3 b6 Qd3 Ba6 Qd2 Be2 Qd1 b5 gxf5 g4 Rh2 g3 Rh1 Bg4 hxg4 Qc7 Nd2 Qa5 Nb1 Qd8 Kd2 Kf7 c4 h5 a4 e5 a5 b3 c5 g2 c6 e3+ Kd3 b4 Kc4 h4 Kb5 h3 c7 e2 Kb6 e1N Ka7 b2 c8Q b3 a6 d3 Qdc2 d2 Nc3 d1Q Nge2 b1N Be3 e4 Nb5 b2 Ka8 Qd3 a7 Nc6 Nf4 Bh6 Bb6 e3 Ng6 e2 Ra5 Nge7 Nd6+ Kg8 f7+ Kh7 f8B Rg8 f6 Qg3 f7 Nd2 Rg1 b1N Rg5 Nc3 Bg7 Nf5 f8B Nd3 Nf7 e1Q Bfc5 d6 Nfh8 Nd5 Bc3 Nf2 Ba6 Nce7 Bb7 Nb3 Rf1 Qd7 Qd8 Nh1 Rf4 Nc8 Qf2 Ng7 Rf7 Qee7 Re5 Bc1 Rg5 Qf6 Kb8 Qfe7 a8R Kh6 Ra7 Nf5 Ka8 Qe1 Bd2 Qh4 Bda5 Qe3 Bc3 Qeg3
BR1q4/p2r2n1/4B1b1/1qqNN1Q1/1pq3KP/QB4Rn/n5p1/1k2BqN1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 e5 a4 exf4 Qd3 b5 Qd1 Na6 g5 Rb8 g6 b4 c3 Rb5 axb5 hxg6 Qd3 g5 c4 g4 Qd1 Be7 Bg2 Bh4+ Kd2 Bf2 Bf1 Be3+ Ke1 Bd2+ Kf2 Bc3 bxc3 Qf6 Ke1 Qd8 h4 Ke7 Kf2 Kd6 e4 Kc5 e5 d5 e6 g5 b6 f5 b7 g3+ Kf3 g4+ Ke2 g2 b8N d3+ Kf2 d2 e7 d4 e8B g3+ Kf3 d3 Qe2 d1Q Rh3 d2 Na3 Nf6 Nc2 Nc7 Ba4 Nfe8 Bb3 Rh7 Ra5+ Nb5 Nc6 Ng7 Ne3 Qc2 Ne5 d1Q Nd5 Qd4 Bd2 Bd7 Qe3 Be8 Bd3 Bg6 Be4 Qa2 Ra6 Qaa5 Be1 Qab6 Ne2 Qa5 Rb6 g1N+ Kg2 Qa6 Rb8 Qe6 Qc1 Qed6 Qa3 f3+ Kh1 f2 Kg2 f4 Bf3 Qe6 Be4 Nf3 Ng1 Ng5 Bf3 Ne8 Be4 Rd7 Bf3 Ng7 Be4 Nf7 Kf3 g2 Rg3 Qa6 Kg4 f1Q Bf3 Ng5 Be4 Nh3 Bf3 Kd6 c5+ Ke6 c4 Nc3 c6 Na2 c5 Qfb5 Be4 f3 c7 f2 c8B f1Q c6 Qdc5 c7 Qbc4 Bb7 Qab5 c8Q Qdf6 Qh8 Qd8 Ba8 Kd6 Qh5 Ke6 Nd3 Kd6 Qg5 Ke6 N3f4+ Kd6 Bf5 Ke5 Be6+ Ke4 Nd3 Kd4 Ne5 Ke4 Nef3 Kd3+ Qf4 Qc2 Qg5 Qce2 Bc4+ Kc2 Bb3+ Kb1 Rc8 Qb2 Rb8 Qbc1 Ne5 Qc1c4+
3q4/1N1B2bQ/3P3R/q2pknB1/pbq1pb2/5R1N/3bnBb1/1K1QQQ2 w - - 0 1 legal: proof: e4 d5 h4 a5 c4 g5 a4 gxh4 c5 f5 Qg4 fxe4 Rh3 b5 Qd1 bxa4 Rh1 Ra7 d4 h5 Bd2 Rh6 Be3 Rd6 cxd6 c5 Bc1 c4 Qb3 Rc7 Qd1 Rc5 dxc5 Qd7 Be3 Qc7 Bc1 Qd8 Kd2 Kf7 Kc2 Kf6 g4 e5 b4 a3 f4 e3 c6 a2 b5 e2 f5 e1B b6 h3 b7 a4 c7 h4 Nc3 h2 Nh3 Nc6 b8B Nh6 Ba7 Bg7 Bf2 Bd2 Kb2 Ba6 c8Q Nd4 Qe1 Ne2 g5+ Kf7 f6 Nf5 Ne4 c3+ Kc2 Bf4 Qc5 Ke6 f7 Bd2 Rb1 a1B f8Q Bb2 g6 Ba3 Qc7 Bb4 Rb3 Bc8 Kb1 c2+ Ka2 Ba6 Rf3 Bf4 Bd2 c1B Qc2 Bc8 Bde3 Bcd2 Kb1 Qa5 Qcd1 Qd8 Nf6 e4 Nd7 Qa5 Nc5+ Ke5 Nb7 Qd8 Rg1 h1Q Qf7 Qg2 Rh1 Qa5 Rh2 Qg5 Bg2 Qgd8 Qf8 Bgh6 g7 Bd7 g8Q Bg7 Qh7 Bc8 Ng5 h3 Rh1 h2 Bh3 Be6 Bg4 Bc8 Nh3 Be6 Bh5 Bd7 Be8 Bb5 Bd7 Ba6 Rg1 h1Q Rg6 Qf1 Qf7 Ng1 Rh6 Qc4 Qfg6 Ne2 Qg2 Bb5 Qgf1 Bc6 Be6 Be8 Bd7 Bh5 Bh4 Bg4 Bg5 Bh5 Bf2 Bg4 Re3 Bf3 Rb3 Bh1 Rf3 Bg2
NR1r3Q/3Q1R1p/1r4q1/3B1N2/Q2b2kq/1NBrPprp/NKb1r2q/8 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 d4 g5 Kd2 gxh4 Ke1 c5 Ke2 cxd4 Ke1 d3 Be2 e5 Bh6 d4 Bh5 Nf6 Rh3 Na6 Be2 Nc7 Rh1 Ng4 Bc1 Ne3 Kd2 Ncd5 exd5 e4 Bf1 Bg7 Rh3 Bf8 Rh2 Nf5 Rh1 e3+ Ke1 e2 Kd2 Ne3 fxe3 Qe7 Nc3 Qd7 Nb1 Qd8 g4 Kd7 a4 e1R c4 b5 d6 Ke6 a5 f5 g5 b3 a6 f4 a7 Kf5 c5 b2 c6 f3 g6 b4 c7 b3 g7 h3 g8Q Bh6 d7 Qh4 d8Q Bg7 Ne2 Bb7 c8N Kg4 Nbc3 b1R Bb2 Be4 Ne7 Rc8 Qc4 Rg8 a8N Rb8 Qf8 Rd8 Na2 Be5 Bc3 b2 Nec1 Rg7 Qda4 Re2+ Kd1 d2 Qd3 Bf5 Kc2 d1R+ Kb3 Bg6 Qdb5 Rd3 Qh8 Be4 Ka3 Rg6 Nb3 Rb6 Bg2 Rg1 Nf5 b1Q Bf1 Rg3 Qd7 Qc2 Bb4 Qc6 Bc3 Qg6 Rg1 Rdd2 Rc1 d3 Rb1 Bd4 Rb2 Rd1 Rb1 d2 Kb2 Bc2 Rg2 Ree1 Bc4 Re2 Bd5 Rg1 Rf2 d1Q Rf1 Qd3 Rfc1 Qe4 Rd1 Qf4 Rd3 Rd1 Rd2 Be5 Rd4 Bg7 Re4 Bf6 Re7 Rd3 Rf7 Bd4 Kc1 Ra6 Nd2 Rgg2 Rb8 Rb6 Nb3 Qh2 Kb2 Rg3
r6K/2Rp1Qp1/1k1B4/qq1PB1q1/1n1R2Q1/1N2qqqN/1QpNbQn1/8 w - - 0 1 legal: proof: c4 b5 f4 e5 b4 exf4 Qa4 a5 Qb3 Ra6 Qd1 Rb6 Nc3 axb4 Nb1 b3 Nf3 b4 Ng1 Rb5 cxb5 Qe7 Nf3 Qg5 Ng1 Qd8 g3 f5 Ba3 h5 Bc1 f3 Kf2 Bd6 Ke3 f2 Bh3 f4+ Kd3 f3 Bg4 Bf4 gxf4 hxg4 Ke4 f1Q Kf5 c5 Kg6 f2 e4 b2 h4 c4 d4 b3 a4 c3 b6 g3 b7 g2 e5 c2 d5 Qe7 a5 Kd8 e6 Kc7 a6 Qc5 e7 Nc6 b8N Qfc4 e8Q f1Q a7 Q4b5 a8Q Qb7 f5 Qff2 h5 Qc3 f6 Qfe1 f7 Qee5 f8B Qh2 h6 Qd4 h7 Qdf4 Qf7 Qa6 Bd6+ Kb6 Qf1 Qa7 Na6 Nh6 Nc5 Ng4 Qf2 Qf3 Bcf4 Ba6 Nh3 g1Q Bfe5 Be2 Ra3 Qc1 Rd1 Rc8 Rd3 Ne3 Rd4 Ng2 Raa4 Qcf4 Rac4 Re8 Qc8 Qa5 h8Q Qhg3+ Kh7 Qfg5 Nd2 b1Q Rc3 Qba2 Rcc4 b2 Qa8 Qac3 Qa3 b1Q Qc1 Qbb4 Ncb3 Qaa5 Qb2 Qbb5 Rc5 Nb4 Rc7 Rc8 Qd8 Q5g4 Qg5 Ra8 Qh4 Qg5 Qg4 Ra7 Kg8 Qce3 Kh8 Ra8+
1n2krQq/1N1qNqRp/4Q1B1/1Q3K2/1PpR1nrB/pn5Q/3r4/1n1N4 w - - 0 1 illegal: No possible last move
b4q1R/Nqr1bP2/4rQB1/K1Nqr3/2p2R2/2Np1B2/2p2NrQ/1b2k1B1 w - - 0 1 legal: proof: e4 c5 a4 b5 h4 f5 c4 fxe4 d4 g5 a5 Nf6 b3 Nd5 b4 Nb6 axb6 gxh4 Qf3 Na6 Qd1 bxc4 b5 c3 Ra2 c4 Ra1 Nc5 dxc5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 Kf7 g4 Kf6 b7 a5 b8Q d5 b6 h5 b7 e5 f5 h3 c6 h2 c7 a4 Ne2 d4 Qc2 a3 Be3 h4 Qb3 h3 Kd1 a2 Kc2 Rh7 Nd2 Qd5 Qa3 Be7 Re1 a1Q Bg1 Kg5 f6 Kh4 g5 e3 g6 e4 g7 Bf5 Qd6 Qa3 c8N Ra6 Qe5 Re6 g8B Rg7 f7 Rg2 Bh7 Qad6 Nc1 e2 Nd3 e3 Qf6+ Kg3 Nb1 Re5 Rc1 e1R+ Be2 Qd8 Na7 Qf8 Rd1 Bg6 Rd2 Be4 Bf3 e2 Bg6 Rd1 Qh8 e1R Rf2 Bf5 Qd8 Re6 b8N R1e5 Na6 Rde1 Na3 Rb1 Qb8 Rb7 Qf6 Rc7 N3b5 Be4 Nc5 Qb7 Kb1 Qd5 Ka2 Bf5 Nb2 Bb1+ Ka3 c2 Ka4 d3 Nd1 Qb7 Nbc3 Qd5 Rf1 Qb7 Bd4 Qd5 Nf2 Qb7 Rhg1 h1B Ka5 h2 Rc1 Qd5 Rgf1 Rg1 Be3 Bg2 Bd4 h1Q Rce1 Qb7 Re4 Qh5 Rf4 Bh1 Re1 Rg2 Ree4 Qg5 Rh4 Qf5 Ref4 Qfe4 Rh8 Qed5 Bgh5 Kh2 Bg6+ Kg1 Nfd1+ Kf1 Bg1 Ke1 Nf2 Ba2 Qd8 Bb1 Qd6 Re2 Qde5 Re4 Qh5 R4e5 Qh2 Qbc6 Be2 Qe4 Bgh5 Rg6 Bf1 Bf3 Be2 Rg2 Bd1 Qd4 Bg6 Qb6+ Ka4 Ba8 Bf3 Qb7 Ka5 Qdd5
6Rn/1np1NB1Q/rN1pp3/P2q1B2/B2R4/B1rn3r/Kn3Q2/2R2qqk w - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 c4 gxh4 Nh3 a5 Ng1 axb4 Rh3 b3 Rh2 Bh6 Rh1 Bf8 d4 b5 d5 b4 d6 e6 Be3 Ba6 Bc1 Be7 dxe7 Bb5 cxb5 Kf7 Kd2 Kg6 e8B+ Kg5 a4 Kf4 g4 h5 b6 h3 b7 e3+ Kd3 h4 Kc4 h2 g5 h3 a5 b2 Kb3 Na6 b8R Nc5+ Ka2 Nb7 g6 Ne7 g7 Ng6 g8B Ra6 Nc3 b1R Qh5 Rb3 Na4 Rc3 Ba3 e2 Nf3 e1N Nd4 d6 f3 Kg3 f4 Qf6 Bd3 Kg2 f5 Qf7 Rf1 h1Q f6 h2 Rd1 Qg1 Nb6 h1Q Nc6 Rh7 Rf4 Nh8 Rd4 Qf8 Qf5 Rh3 f7 Kh2 Qh7 b3+ Kb2 Qe4 Ne7 Kh1 Ba4 Qd5 Kb1 b2 Rc1 Qc5 Ka2 b1N Bg6 Nd2 Bb1 Nc4 Rc8 Qh6 f8Q Nb2 Qff7 Qhe3 Qf2 Qe2 Bf5 Qef1 Bf7 Ned3 Rg8 Qd5+
N5rr/3r4/r7/QBB2RbP/pr1r4/pk2pK2/b1R1R1N1/B1bQ1q1R w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 e5 h5 e6 h4 Bg2 fxe6 Bh3 e5 Bf1 e4 h3 g5 Qd2 Nf6 Qd1 Nc6 Bd3 Ne5 Bf1 Nh5 gxh5 g4 Nf3 g3 Ng1 Ng4 hxg4 Bh6 Nf3 Bg7 Ng1 Bf8 Ke2 Kf7 b4 Ke6 f4 Kd5 c3 Kc4 f5 d5 g5 e5 b5 a5 b6 a3 f6 g2 f7 d3+ Ke3 h3 g6 a4 b7 h2 b8B Be6 g7 Qf6 g8Q Ra6 Bd6 Be7 Ne2 g1R f8R d2 Ra2 Qf7 Rc2 Bg5+ Nf4+ Kb3 c4 d4+ Ke2 e3 c5 e4 c6 Rg3 c7 Rg4 c8R Qf5 Qe1 d1R Ng2 Qf4 Qa5 Bd5 Rg1 h1R Nc3 Rhh4 Nb5 Bf7 Bc5 Rd2+ Ke1 d3 Bb2 e2 Rh1 Qf3 Rc6 Qh3 Kf2 e1B+ Kg1 e3 Ba1 Rd1 Nc7 Bd2 Na8 Bc1 Re2 d2 Qh7 Bd5 Qd7 Rg3 Rf5 Rb4 Re1 Rgg4 Bb5 Qf3 Kh2 Qf1 Re2 Rgd4 Kg3 Re1 Ba7 d1R Rcc2 Bf7 Qdd8 Rd7 Bc5 R1d4 Qe7 Red1 Qd6 Rdd8 Qd7 Bc4 Qd5 Rdg8 Qf3 Rd7 Qd5 Rd4 Qd6 Re4 Qd1 Red4 Rf4 Bd5 Rf5 Be4 Rb2+ Kc3 Kg4 Bd5+ Kg3 Ba2 Rbc2+ Kb3 Rh4 Qe1+ Kf3 Qg1 Rh1 Qf1+
1QN1N2b/3p2Q1/R3p1B1/1r6/Bp2q1Q1/B1qqR3/BKbb2qP/1b2n2k w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 d4 h5 d5 hxg4 d6 f4 Qd3 cxd6 Qd2 d5 Qd1 d4 f3 g5 Bh3 b5 Qe2 g3 Qg2 g4 Na3 Nc6 Qe2 Ne5 Bf1 g2 Qd1 g3 Nb1 Ng4 fxg4 Rh5 Be3 Rf5 exf5 Ra6 Bd2 Rh6 Bc1 Rh8 Kd2 Kf7 a4 Kf6 c4 Kg5 Kc2 Kh4 a5 b3+ Kb2 b4 g5 d3 f6 f3 f7 f2 c5 d2 a6 Bh6 f8Q Qc7 a7 Bb7 a8B Be4 g6 Bc2 c6 Nf6 g7 Ng4 g8B Ne3 Bb5 f1Q Qg7 Qf5 Nh3 g1B Na3 g2 Nf2 Qe4 Ng4 Kh3 Nc4 e6 Nf6 Bf2 Nd6 g1Q Ra6 Ng2 Bh7 Rb8 Bg6 Ne1 Ba4 Kg2 Nc8 Rb5 Ne8 Bc5 Qh5 d1Q Qg4+ Qg3 c7 Qd3 Bb7 Bd2 Bd5 Qge3 Rf1 Qee2 Rf5 Kh1 Rf3 Qeg2 Re3 Bf8 Na7 Be7 c8Q Bh4 Qc7 Bf6+ Qe5 Q3h3 Nc8 Qhf3 Qf8 Bh8 Qfg7 Qfg3 Qb8 Qc7 Ka1 Qc5 Ba3 b2+ Ka2 b1B+ Kb2 Qc7 Ba2 Qcc3+
2q2k2/1pb1pb1b/1B5K/Pn1R3r/3Rn3/p1pN2r1/N4N1B/Nn3RQQ w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a6 b5 axb5 a3 Bh6 a4 Bf8 a5 Bh6 Bc4 Bg7 Bb3 Bf8 Ba4 bxa4 Ke2 c5 Kf3 h5 Kf4 c4 Kg5 h3 d4 h2 f4 a3 g4 h4 d6 h3 f6 Qd7 f5 Qe6 d7+ Kf7 d8B Qd7 d5 Bg7 d6 Qa4 d7 Bf8 Nc3 Bg7 Bb6 Rh6 d8R Rh8 Na2 c3 Bf4 Qe4 Rd4 Ke8 f7+ Kf8 Qf1 Be5 Rad1 Kg7 f8N Be6 Nd7 Qc6 Nc5 Nf6 Nb3 Bc7 Na1 Kf8 R1d3 Rg8+ Kh6 Bf7 g5 Ne4+ g6 Na6 f6 Nd2 Bg3 Nb1 g7+ Ke8 Qe1 Qd7 Rd5 Qc8 R3d4 Rb8 Nf3 Ra8 Rf1 h1B Nd2 Be4 Bh2 Bh7 Ne4 Rb8 Nf2 Ra8 Bd6 h2 Qd1 h1N Bh2 Ng3 Qc1 Rf8 g8Q Ne4 Qg1 Rg8 Qh1 Kf8 Qg5 Be6 Qgg1 Rg3 f7 Nb4 Nc1 Nc6 Na2 Na7 Kh5 Kg7 f8N Nb5 Ng6 Beg8 Nf4 Kf8 Kh6 Be6 Rd6 Bf7 N4d3 Ra6 Bc5 Rc6 Bb6 Rc5 Rd7 Re5 R7d5 Rh5+
5Q1R/2br2Q1/qR3RBp/2B1p2B/PR3n1p/q1nNK1pk/1nr5/4Nb2 w - - 0 1 legal: proof: g4 a5 b4 axb4 h4 g5 d4 d5 c4 c6 cxd5 f6 e4 Qd7 d6 Qe6 d7+ Kf7 e5 Qd6 exd6 gxh4 g5 f5 Qg4 fxg4 d5 Bg7 Bg2 Bh6 Bf1 Bf8 Ke2 Kg6 d8Q Kf5 f4 e5 a4 b5 d7 g3 d6 Kg4 f5 c5 f6 h6 g6 b3 f7 c4 g7 c3 Bf4 b2 Nd2 b1N Qf6 c2 d8R c1Q d7 b4 Nh3 b3 Be3 b2 Nf3 Bd6 f8Q Ra7 Nf4 Na6 Bc5 Bc7 Ne1 Nb4 Nfd3 Ne7 g8B Ned5 Bh7 Ba6 Bg6 Qc3 Ra2 Nf4+ Ke3 Qa3 Q6g7 Nc3 Rb8 b1Q d8R Qbb3 Rdc8 Qe6 Rb2 Bb5 Bg2 Qa6 Rf1 Rg8 Ba8 Kh3 Rb6 Rh8 Bf3 Rb7 Nc1 Nbd3 Rb4 Nb2 Bfh5 Bc4 Rf3 Bf1 Ncd3 Ra7 Qd6 Rh7 Rh8 Ra8 Qdf8 Rc8 Qgg8 Rd7 Qgg7 Ne6 Rf6 Nf4 Nc1 Rd2 Ncd3 Rd8 Qgf7 Rd7 Q7g7 Rc2
Q2n2B1/2Nn4/1p3ppr/1P2qQn1/BrbqRB1p/1b1RK3/4N3/3Q2Bk w - - 0 1 legal: proof: h4 e5 b4 a5 c4 d5 cxd5 g6 f4 exf4 b5 Bb4 h5 Bd6 g3 fxg3 h6 Bf4 Qb3 Be5 Qb4 Bg7 hxg7 axb4 e4 Ke7 Ke2 Kd6 a4 Ke5 d6 Kf4 d4+ Kg4 d5 h5 d7 c5 e5 b3 d6 b2 a5 f6 a6 c4 a7 c3 e6 c2 e7 g2 e8Q Kg3 Nc3 b1B Ra3 h4 Ke3 Rh6 Qe4 Ne7 g8B Nec6 Bfc4 Ba2 Nd5 Bb3 Qf5 b6 Nc7 Bb7 Bcf7 Bc4 Rd3 Bc8 Bd2 c1Q Be6 Qe7 d8Q Qd1 d7 Qd6 Bc3 Qd5 Bd4 Qe5+ Qe4 Qa4 Bg4 Bb7 Bd1 Qa1 Ba4 Qd1 Nh3 g1N Nf4 Nh3 Re1 Kh2 Ne2 Ng5 Bc5 Qc3 Qf3 Qca1 Qc8 Nd8 Qf5 Bc6 Qb7 Bg2 Qbf3 Bf1 Qh5 Kh1 Qhg4 Bb3 Qd4 Nde6 d8B Nd7 Bde7 Qb2 Bed6 Nd8 Bf4 Rc8 Qd6 Qc3 Bd4 Qc5 a8Q+ Qd5 Na6 Rc4 Nc7 Qa1 Qa3 Rb4 Qc1 Qc3 Qd1 Qc5 Kd2 Qe7 Bg1 Qe5 Nc1 Ndf7 Re4 Nd8 Ke3 Be2 Rc3 Bd3 Ne2 Bdc4 Rd3 Qdd4+
q3N3/4pbn1/QbQ3N1/2q5/Q1KPrbB1/r1p2R1p/1N5p/QnR1B2k w - - 0 1 illegal: No possible last move
N4nK1/2rp2BR/p1R1p3/Qbq2NbP/1Rp1Q2Q/3nBQq1/3b4/1r2k3 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 d4 hxg4 c4 c6 d5 cxd5 c5 Rh7 Be2 Rh8 Bc4 dxc4 Kd2 Kf7 Ke3 Kf6 Kf4 a6 b4 e6 h4 g3 b6 g6 c6 g2 c7 Bb7 c8R Bc6 b5 Rh7 b7 Bb4 b6 Ba3 Qd3 Qf8 Ne2 g1Q Ng3 Qb4 Nc3 Ra7 Qe4 Rh6 Be3 Qb2 Rb1 Qbc1 Nd5+ Kg7 Ke5 g5 f4 g4 Rb4 Ne7 Nc7 Bb5 Na8 Qce1 Rc6 Bc1 f6+ Kf7 f5 Ng6+ Kd6 Bd2 Rh3 Nf8 Rh2 Kg8 Ke7 Kh7 f7 Qgf2 f6+ Rg6 Nh5 g3 Ng7 g2 Nf5 g1B Rh1 Rg7 Rh3 Kg6 Ke8 Nh7 f8Q Kh5 f7 Bh2 Qh8 Rg1 f8Q Bf4 Kf7 Kg4 Kg8 Qg3 Qa1 Qef2 Qa5 Rb1 Rh1 Qgh2 Qh6 Kh3 Qh5 Bg5 Qhf3+ Qg3 h5 Nf8 Rg1 Qf2 Rf1 Kh2 Rg1 Qd6 Rg3 Qc5 Rg4 Bf4 Rg7 Bg5 Rh7 Kg1 Rd6 Nc6 b8Q Kf1 b7 Rc1 Qbd8 Ke1 b8B Ne5 Rc6 Nd3 Be5 Rb1 Bg7 Rc7 Qe7 Qg3 Qf6 Bf4 Qh4 Bg5
4n1BN/1R3n2/pnQ2n1K/pbr1b1P1/1kN1B1R1/N1r3pp/1qR3QR/8 w - - 0 1 legal: proof: g4 e5 f4 d5 a4 g5 c4 b6 a5 bxa5 cxd5 exf4 b3 Bc5 Ba3 Bd6 Bc5 Be7 Bf2 Bc5 h4 Bd6 hxg5 Bf8 Bg3 fxg3 e4 Kd7 Ke2 Kd6 Kf3 Kc5 Kf4 h5 d4+ Kb4 d6 f5 g6 c5 d7 c4 d5 h4 e5 h3 d6 c3 e6 c2 g7 c1N e7 a6 Kg5 f4 Ra4+ Kc5 b4+ Kc6 b5+ Kc5 b6 f3 b7 f2 Qd2 Ra7 Bg2 f1N Na3 Rh4 Be4 Nh2 Qg2 Nd3 Nf3 Nf6 e8Q Ne5 g8B Bg7 Nd2 Qb6 d8N Nbd7 b8R Rc7 Nf7 Qb2 Nh8 Nb6 Rb7 Bd7 Ndc4 Bb5 d7 Nf7+ Kg6 Rc6 d8R Rh5 Rc8 Rc7 Qe6 Ne8 Qd7 Rf5 g5 Ng4 Rh2 Be5 Qe6 Ngf6 Qc6+ Kd4 Rd8+ Kc3 Rd2 Rf3 Rc2+ Kb3 Nd6 Rc8 Rd4 Rc3 Ndc4 Nfd6 Kh6 Kb4 Beh7 Rc7 Rg4 Rc8 Be4 Rc7 Qd7 Rc5 Qc6 Nf7+
nB2r3/R1Q3QR/1q3b2/pB1pN2N/3pr3/1b2RPN1/q2k3p/b2N1Kq1 w - - 0 1 illegal: No possible last move, all moves rejected
6q1/qR5Q/b1BP4/R1np4/K2n1QBN/2b2p2/ppb1R2r/q2NR1Nk w - - 0 1 illegal: No proof kernel
kBr5/6p1/pP1pNR1R/5Q2/2Kpq2n/q3NrrB/2Q1N3/R1n2bnR w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 g4 exf4 g5 a6 Be3 Bc5 Bc1 Ba7 b6 h6 bxa7 hxg5 Ra3 g4 Ra5 Rh3 Ra1 Rh8 Kd2 f5 Kd3 f3 e4 f4 b4 f2 c4 g3 h4 g2 c5 f3 c6 Rh6 c7 Re6 e5 Nc6 b5 Bb7 c8Q Nb4+ Kc4 Na2 b6 Nh6 h5 Nf5 h6 Nh4 h7 Rg6 e6 Rg3 Ne2 g1N Bh3 f1Q e7 f2 Nc3 Qg2 Qc2 f1R Bf4 Rff3 Nd1 Nc1 Bb8 d6 Qe6 Qd7 Ne3 Be4 Qf5 Bd3+ Kb4 Qe6 h8R+ Kd7 e8N Kd8 Rf8 Qe4 Rf6 Bc4 Nc7 Qd3 Ne6+ Kc8 Rh6 Kb7 Bc7 Rg8 a8R Rc8 Bb8 Qe4 N2f4 Bf1 Ne2 Re8 Kc4 Qd3+ Kd5 Qa3 Kc4 Rg8 Ba7 Rh8 Rf8 Rg8 Bb8 Ka8 Rff6 Rc8+ Qc5 Rf4 Qf5 Qb7 Qc6 Rff3 Qcc5 Rg8 Qc2 Qe4 Qf5 Rc8+
3b3n/p2b1Br1/3Qr1qN/1N5p/1Bb3pR/KQ6/r3RpNP/1Nk3qQ w - - 0 1 legal: proof: b4 c5 a4 d5 e4 b5 axb5 cxb4 Qf3 dxe4 Qg4 Bd7 Qd1 Bc8 f3 f5 Kf2 Nc6 Ke1 Nd4 g3 f4 g4 Nf5 gxf5 exf3 c4 Kf7 d4 Kf6 Kd2 Kg5 Kc2 h5 Kb2 e5 f6 b3 b6 e4 b7 f2 b8Q e3 d5 e2 f7 e1R c5 Rh7 d6 Qe8 c6 Nh6 d7 Re2+ Bd2 Be7 d8N Bd7 f8Q Nf7 c7 Nh8 c8N Qg6 Ra4 Bf6+ Ka3 b2 Bc3 f3 Nh3+ Kf5 Nf7 Bd8 Bg2 f1B Nf4 f2 Ncd6+ Kg4 Bh3+ Kf3 Bb4 Ke3 Nb5 Qg1 Qfd6 g5 Bf5 Rg7 Be6 Rc2 Ba2 Bc4 Nh6 Rd2 Qb7 Rb8 Qbc6 Rb6 Qc2 Ra6 Ng2+ Ke2 Qcd3+ Kd1 Qb3+ Kc1 Qe4 Re2 Qed5 Re6 Qa8 Qd1 Re1 Ra5 Re2 Qg1 Nh4 Ra6 Qh1 Ra5 N1c3 b1Q Ng2 Qg6 Nb1 Ra6 Ba5 Bd3 Rd4 Bc4 Rh4 Rb6 Be1 g4 Bb4 Ra6+ Qa4 Bd3 Kb3 Re8 Qa3+ Kd1 Kb2 Ra5 Bg8 Re6 Bf7 Ra6 Qa2 Ra5 Qad5 Ra2+ Kb3 Kc1 Qf3 Rd2 Ka3 Bc4 Qb3 Ra2+
B4B2/3nbQ2/4p3/pR1N1RBB/p1Pq1N2/Kn1n2Rr/2r1r1pQ/k6n w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 f5 e4 c5 exf5 cxd4 b5 b6 Bf4 Ba6 bxa6 b5 Bc1 bxa4 Kd2 Kf7 h4 Kf6 f4 g5 c4 d5 Kc2 d3+ Kb2 g3 h5 g2 h6 d2 a7 g4 h7 d4 Ra3 g3 Ka2 d3 Be2 Qd4 Rh2 Nc6 Rc3 Re8 Qb3 d1N a8B d2 Rh5 Nf2 Nh3 d1N Ka3 g1R Qb7 g2 Rg3 Nb2 Nc3 Nh1 Be3 Nd3 Nd5+ Kf7 f6 Ke6 f5+ Ke5 f7 Rc1 Qd7 Nf6 Bg5 Rc2 Nhf4 Ke4 Qa7 Nd7 f6 Ke5 Nb4 Ke4 Bf3+ Ke3 Nbd5+ Kd2 Bd1 Kc1 Be2 Bh6 f8B Kb1 f7 Ka1 Qb7 Bg7 Bg4 Bf6 Qc7 Rg8 h8Q Rg6 Bd1 Rh6 Qh7 e6 Qf5 Rd8 Qh3 Rh7 Qh2 Be7+ Nb4 N7c5 Qg1 Nb8 Bgh6 Nc1 Qh2 Qh8 Bfg7+ Bf6 f8R N5b3 Rb5 Rdd2 Bg5 Rh3 Nbd5 Nd3 Bh5 Re2 B7h6 Bd8 Rf5 Qd4 Qf7 Nd7 Bf8 Be7+
bK3BR1/1R6/2b3p1/2nQN1pp/2p1N3/Rq2Nrb1/2Qb1P1k/q1RB3n w - - 0 1 legal: proof: d4 b5 c4 e5 g4 exd4 a4 d5 axb5 dxc4 g5 f6 h4 a5 h5 Ra6 h6 Rd6 Rh2 Rd7 Rh3 g6 Rh1 Rg7 hxg7 fxg5 Kd2 Kd7 e4 Kd6 b4 Ke5 b6 Kf4 b7 c5 e5 h5 b5 c3+ Kd3+ Kf5 Kc4 c2 e6 d3 e7 d2 e8N a4 b6 a3 Kb5 c4 Nf6 a2 Nf3 Nh6 g8Q Bd6 Na3 Nd7 Ka6 Nc5+ Ka7 Bg3 b8R Qd3 b7 Qb3 Ne4 Kg4 Qd5 Bd7 Rg8 Nf5 b8R Bc6 Be2 Rh7+ Rb7 Rf7 Re1 Kh3 Ne5 Kh2 Kb8 Rf6 Bb2 c1B Qc2 d1B Bc3 Rf7 Bb4 Bd2 Bf3 Be2 Rec1 Bf1 Bd1 Bg2 Qcd3 Bh1 Nc2 Bg2 Ne3 Rf6 Rab1 a1Q Qc2 Qa5 Qd8 Na4 Nc3 Bf4 Re8 Bb5 Rg8 Ng3 Bf8 Nh1 Rb6 Ba8 Ra1 Bbc6 Rb7 Nc5 Ne4 Bg3 Qd5 Rf3 Ra4 Qac3 Ra3 Qa1
1BB1r1k1/K2r1R2/6P1/R1p4p/n1qq1QN1/4q1N1/R1pq1pBq/1Q4Rb w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 f5 b5 e5 b6 exf4 g3 f3 Qb3 axb6 Kd1 b5 Kc2 f2 Kc3 Nc6 Qd1 b4+ Kc2 Nb8 Ba3 g5 Bb2 f4 Bc1 f3 Qe1 Bd6 Qd1 Bf4 gxf4 Nc6 h3 Ne5 h4 g4 Bg2 Nf7 Bf1 Ng5 hxg5 Qd7 Rh2 Qe7 Rh1 Qd8 d4 Kf7 a4 c5 e4 b5 f5 h5 g6+ Kf8 f6 c3 Kd3 c2 e5 b3 f7 b2 e6 b4 Kc4 b3 Kb5 g3 d5 g2 d6 Bb7 d7 Bd5 e7+ Kg7 f8R Rh6 e8B Be4 a5 Rh7 a6 Bd5 a7 Qc8 Kb6 Nf6 d8Q Qh3 Nd2 b1Q Nc4 b2 Qd6 Ne4 Ne2 g1Q Ra2 Qa1 Rf7+ Kg8 Ne3 Qgh2 Ng4 Nc3 Bg2 f1Q Qf4 f2 Rg1 Qe3 Bd7 Re8 a8R b1Q+ Ka7 Qb4 Bc8 Na4 Ng3 Qfc4 Bd2 Bf3 Qb1 Qad4 Bc3 Qdd2 Be5 Qdd4 Bb8 Qbd2 Bh3 Bh1 Bg2 Re5 Kb7 Re4 Ra5 Re8 Ka7 Rg7 Rb7 Rd7 Rc7 Rdd8 Rf7 Rd7+
3b4/Np3q1r/1Q6/Rp6/nq2N2P/kn1QqpnK/2pnQ2R/BQNB4 w - - 0 1 legal: proof: f4 d5 h4 g5 b4 e5 c4 exf4 b5 dxc4 Kf2 a6 Ke1 axb5 Nf3 h5 Nc3 g4 Nd4 g3 Nb1 Bh3 Nf3 Ra6 Rg1 Rg6 Rh1 Rg5 hxg5 h4 Ng1 Be6 Qc2 h3 Qb3 h2 Qd1 Bh3 gxh3 Ke7 Nc3 Kd7 Nb1 Ke8 a4 Kd7 d4 Kc6 e4 f5 d5+ Kc5 h4 Kb4 g6 c5 e5 c3 a5 g2 Kf2 f3 Kg3 f2 e6 f4+ Kh3 c4 a6 f3 a7 c2 a8N c3 d6 Rh7 d7 Be7 g7 Nf6 g8Q Qe8 d8Q Ng4 Nd2 Ne3 Bb2 c1Q Nb6 c2 Nc8 Nd7 Na7 Nf5 Ne2 g1Q Qb6 Qf7 Qgd8 Qb1 Ne4 Nd4 Ra5 Nb3 Ba1 Ndc5 Q8d3 Bd8 e7 Na4 e8Q Ka3 Nc1 Qg5 Be2 f1N Qe1 Qe3 Bd1 Nd2 Qee2 Qb2 Qg8 Qbd4 Qg1 Qb4 Qgf1 Be7 Rg1 h1N Rg2 Bf6 Rh2 Bd8 Na2 Qg5 Qfe1 Nc4 Q1d2 Qe3 Qc1+ Nb2 Qb1 Ng3 Nc1 Nc4 Qh6 Nd2 Qg6 Qbf8 Qb6 Qb4
1r1n4/7N/1n5K/1Qpn2B1/N2r1Rnp/2Pr1B2/1p1k1N1p/qQ1n1RBB w - - 0 1 legal: proof: h4 b5 e4 g5 b4 gxh4 e5 a5 a3 axb4 e6 b3 Nc3 b4 Na4 b2 Nc3 dxe6 Nb1 e5 Ba6 e4 Bb5+ Nd7 Bf1 Nb8 f3 e5 Nc3 b3 Ke2 e3 Nb1 Bb4 axb4 Bf5 Qe1 Be4 Qd1 Bd5 Kd3 e4+ Kc3 e2 Rh2 e3 Rh1 Be4 fxe4 Qg5 Ra3 Qe7 Ra1 Qd8 d4 Ke7 Kd3 Kd6 g4 e1R g5 f5 g6 c5 b5 h5 b6 h3 d5 Ke5 b7 Kf4 g7 h4 d6 h2 e5 Qe8 d7 Rh5 d8B Nh6 g8B Qa4 e6 Nd7 e7 Nf7 e8N Rb8 Bg2 Nb6 Nc3 b1N Bf3 b2 Nf6 Qa8 Na4 Nc3 Ra2 Ncd5 c3 Rg5 Ra3 Rg4 Nh7 Qa5 Bf6 Nd8 Bd4 Qa8 Qc2 Rd1+ Ke2 Rd3 Qb1 Rg7 Rb3 Rd7 Rb4 Qa7 Bh5 Ke4 Nh3 f4 Rf1 Qa8 Bgf7 Rd6 Be8 Qa5 Bc6 f3+ Ke1 e2 Kf2 e1N Bg5 Nc2 Rc4 Ra8 b8Q Ne3 Qb7 Rb8 Qa6 Nf5 Qb5 Nh6 Bde3+ Ke5 Rf4 Ng4+ Ke1 f2+ Ke2 Rd7 Kf3 Rd6 Rh1 f1N Nf2 Ng3 Rf1 Nf5 Nh3 Rd4 Bg1 Nfe3 Nf2 Nd1 Kg2 Qb4 Kh3 Qa3 Bb7 Qa1 Ba8 Nh6 Bf3 Ng4 Bh1 Ndf6 Bad5 Rd3+ Bdf3 R6d4 Qc6 Nfd5 Qe8+ Ne7 Qb5 Ned5 Qc1 Nh6 Qc2 Nhf7 Kg4 Nh6+ Kh5 Ng4 Rf7 N5e3 Qb1 Ned5 Bf6+ Kf4 Rf8 Ke3 Bg5+ Rf4 Rf5 Kd2 Rf7 Nge3 Kh6 Rfd4 Rf4 Ng4+
3q1KnB/Br3R2/R1Qp3N/2npp3/R1r1BQ2/2B1pn2/5P2/N1n1nk1q w - - 0 1 legal: proof: d4 f5 e4 fxe4 a4 g5 d5 b5 g3 bxa4 d6 cxd6 Ba6 d5 Bf1 g4 Na3 Ba6 Nb1 Bh6 h3 Bf4 gxf4 g3 Na3 Be2 Nb1 Bg4 hxg4 Qc8 Nd2 Qc7 Nb1 Qd8 Kd2 Kf7 Kc3 Kg6 Kb4 h5 Kc5 a5 b4 e5 Kd6 h4 c4 g2 b5 e3 g5 Kf5 c5 Ke4 g6 h3 f5 a3 b6 a2 g7 a4 f6 a3 c6 h2 b7 Rh3 c7 Qc8 f7 Kf4 f8B Nc6 b8B Nd8 Ba7 Rh4 Ne2+ Kf3 Qd4 g1N Ng3 Rh8 Bd2 Rb8 Nf5 Rh4 Nh6 Rb5 Bc3 Nc6 Bd3 Kg2 Be4+ Nf3 Nd2 Nd8 Nb3 Rb7 Qb4 Qa8 c8Q Ne6 Qc6 Qd8 Be7 Rf4 Bf6 Nc5 Rhd1 h1Q Rd4 Nd3 Qba4 Ne1 Rb4 Kf1 Rc4 Ne7 g8R Rg4 Re8 Ng8 Re7 Rh4 Bh8 Rf4 Rd1 a1N Rf7 a2 Rdd4 Rh4 Rc5 Rg4 Ra5 Rh4 Ra6 Rf4 Nc1 Nb3 Qb4 Nc5 Nb3 a1N Rc4 Nac2 Na1 Ned3 Qba4 Nc1 Rb4 Nf6 Rd4 Nce1 Rb4 Qa5 Ke7 d6+ Kf8 Rg4 Qc2 Ng8 Ra4 Rb4 Qd2 Rg7 Qd4 Rc4 Bh7 Qb6 Qf4 Qa5 Be4 Rh7 Rf5 Rb7 Rf7 Qd8+
BqK2QQ1/4R1PB/3pn2B/q4N1b/6nb/N3p1p1/Np3k1b/1Nnn3R w - - 0 1 legal: proof: g4 h5 b4 c5 e4 a5 f4 axb4 d4 cxd4 f5 b5 g5 f6 e5 fxe5 h3 e4 h4 Ra6 Bc4 Rf6 gxf6 g5 Be2 g4 Bf1 Rh7 Qd2 Rg7 Qd1 Rg5 hxg5 Bg7 Bd3 Bh6 Bf1 Bf8 Kd2 Kf7 c4 e5 a4 e3+ Kd3 e4+ Kc2 h4 Kb3 e2 c5 e1B a5 d3 a6 h3 a7 h2 a8B d2 c6 Bd6 c7 Na6 Bd3 Bh4 Ne2 Nh6 Qg1 d1N Nec3 Be5 Ra5 d6 Na2 Beg3 Bf4 e3 Bde4 Bd7 c8N Be8 Nb6 Nc7 Nc4 Ne6 Nca3 Qc7 Ra6 Qa5 Ra7+ Nc7 Kc2 b3+ Kd3 b2 Kd4 b4 Bc2 b3 g6+ Kg8 f7+ Kg7 f8N Kf6 Kc4 Ne6 Re7 Bf7 Bg5+ Ke5 f6 Be8 f7 Bf4 Nbc3 b1Q Qg2 Qb2 Ncb1 Bfg3 g7 Bf4 Bh7 Bfg3 Rg1 h1N Ng6+ Kf5 Qc6 Bh2 Qc8 g3 f8Q+ Kg4 Qd8 Nhf2 Rh1 Nd3 Qc8 Qd8 Kd5 Nc1 Qg8 Bf7 Kc6 Kf3 Kb7 Qa5 Qcf8 Kf2 Kc8 Ng4 Bf4 Be8 Bh6+ Bf7 Nf4 Bh5 Ne2+ Qf6 Nd4 b2 Nf5 Qfc3+ Bc6 Qcb4 Ba8 Qb8+
r7/1pr1prb1/2kB2N1/1R1R1rq1/4b1pN/2P2B1K/bBN2Q1p/3Qq1B1 w - - 0 1 illegal: No possible last move, all moves rejected
6qQ/pn3qpR/qr1n4/2PppR2/NkN4r/4Rq2/B6R/BrK2BQ1 w - - 0 1 legal: proof: e4 c5 g4 b5 d4 cxd4 a4 bxa4 Bd3 h5 Bf1 hxg4 f4 d5 f5 e6 e5 Bd6 exd6 e5 Bd2 Qg5 Bc1 Be6 fxe6 Qd8 Kd2 f5 c4 f4 b4 a3 h4 g3 d7+ Ke7 h5 Kd6 h6 a2 e7 g2 e8B d3 h7 f3 b5 Kc5 b6 f2 b7 Nh6 Bg6 Kb4 c5 Qe8 d8Q Nd7 b8R+ Nb6 Na3 Nf5 Rh2 Qf8 Nc4 Qg8 Ne2 g1R Bb2 Nd6 Kc1 Nb7 Nc3 Nc8 Na4 Nd6 Qh4 Rh1 Rf8 Rb8 Rf5 Rg1 Rb1 a1Q Qdg4 Rh1 Qg1 Qa3 Ra1 Qa2 Bd4 Qe2 Ra3 d2+ Kb1 Qh5 Ba1 d1Q+ Kb2 Qdf3 Kc1 Qh6+ Re3 Qhh5 Rf4 Qh6 Bb1 Qhe6 Rf5 Qee8 Ba2 Qef7 Be2 f1Q+ Bd1 Qd3 Be2 Rc8 Qd8 Rc6 Bf1 Rb6 Qh4 Qa8 Qh3 Rb8 h8R Qde2 Nd2 Qa6 Rhh5 Rh8 Nc4 Qc8 Qh4 Rh7 Qd8 Qb8 Qh8 Qbg8 Rhg5 Rh3 Rh5 Rh4 Rh7 Rd4 Rf2 Rhh4 Rh2 Rd1+ Kc2 Rb1 Kd2 Rb2+ Kc1 Rb1+
2k3N1/pp6/p2rRQ1R/K1n2Nr1/n1R1N1Rn/nQ2bP2/1p1n4/n5BB w - - 0 1 illegal: Other
K1b3N1/b2pp1b1/1Nkp2N1/p6r/qR1BprB1/1P5Q/1Bn3RQ/1Nn5 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 h5 g4 g5 e4 fxe4 d5 hxg4 f4 Rh6 fxg5 Rh8 d6 cxd6 Kd2 a5 Kc3 g3 Kc4 g2 h4 Nh6 h5 Nf7 h6 Bg7 b6 Rg8 Kb5 Bd4 c4 Bc5 b3 Be3 h7 Bf4 h8B Ra7 c5 Be5 g6 Nc6 b7 Ng5 b8Q Bc3 g7 Ra6 Qe2 Rf8 g8N Bf6 Nh3 g1B Nf4 Bg7 Bh3 Ne5 c6 Ra8 c7 Nc4 Bb2 Ne3 Kb6 Nf7 Bg4 Ne5 Ng6 Nd3 Rh2 Nc1 Ra4 Rf4 Rb4 Nc2+ Qf2 Kf7 Rg2 Qf8 Qe3 Ke8 Bd4 Qf7 Qh3 Qc4 Qa7 Be3 Qa6 Rb8+ Ka7 Rb5 Ka8 Rh5 Qb5 Bf2 Qe5 Qb5 Bb2 Ba7 Bd4 Qa4 Bb2 Ba6 c8N Kd8 Nb6 Kc7 Bd4 Kc6 Bb2 Rf3 Qeh2 Rf4 Bd4 Bc8 Bb2 Bf8 Bhd4 Bg7
2B1R1NR/1N6/p3Nb2/rQNp1kP1/1Bn2pn1/1b3qp1/p2qr3/Q5QK w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 Be3 bxa4 Bc1 e5 g4 f5 h3 g5 gxf5 g4 h4 Qg5 hxg5 exf4 Kf2 Ke7 Kg2 h5 b4 d5 e4 a6 c4 h4 f6+ Ke6 c5 a3 b5 g3 e5 d3 b6 d2 f7 a2 c6 Ne7 b7 Ng8 c7 Bd6 f8Q Bd7 c8N Nc6 b8Q Be7 Nf3 Na5 Nc3 Nc6 Na4 Nh6 Qb5 Na7 Qg7 Bb4 Nc5+ Kf5 e6 Ng4 e7 Nc6 e8N Na5 Ba3 Nc4 Nf6 Rb8 Ng8 Bc3 Bb4 h3+ Kg1 Bf6 Nd4+ Ke5 Qc1 d1Q Nd6 Qd2 Ndb7 Bf5 Nde6 Bc2 Rh2 Kf5 Kh1 Bb3 Re2 h2 Bh3 Re8 Qg1 Rh7 Qh8 Rc7 Rae1 Be7 Qa1 Bf6 Nf8 Rcc8 Re7 Rc6 Rh7 Re2 Nfe6 Rc7 Rh8 Rc6 Qa4 Rb6 Qc6 Rb5 Qd7 Ra5 Qb5 Rg2 Ned8 Rf2 Re8 Re2 Nde6 Kg6 Ned8 Nge3 Bc8 Ng4 Nde6 Kf5 Rh7 Ba4 Rh6 Bb3 Rh8 Nf2+ Kg2 h1Q+ Kf1 Qh5 Kg2 Qf3+ Kf1 Qfc3 Kg2 Ng4+ Kh1 Qf3+
6BR/3p4/Q2BBb1K/1Np4n/1pB1p1b1/1NP1kq1Q/2rR1p1r/2rQ3b w - - 0 1 legal: proof: g4 e5 e4 g5 h4 a5 hxg5 f5 b4 axb4 g6 Nc6 g5 Na5 f4 Nc4 d3 exf4 d4 Ne5 dxe5 fxe4 Ke2 Ke7 a4 Ke6 c3 Kf5 g7 c5 g6 b5 a5 h5 e6 b3 e7 b2 e8Q h4 a6 b4 a7 f3+ Ke3 h3 Nd2 b1R Bc4 f2 Ne2 h2 Ra2 Be7 Nd4+ Ke5 Nb5 Rh4 Nb3 Nf6 g8B Rh7 g7 Ba6 Bge6 Nh5 g8B Bf6 Rd2 Qc8 Qg6 Qf8 Qg2 Rb2 Qh3 Rc2 Rg1 h1B Rg2 Rc8 a8Q Rb8 Qc6 Ra8 Rg7 Rh6 Rh7 Qf7 Rh8 Qf8 Nd6 Bb5 Qb6 Ra1 Qa6 Rb1 Bcd5 Be2 Nb5 Bef3 Bc4 Bg4 Rd6 Be7 Qhf1 Nf6 Bd2 Rh2 Qh3 Rbc1 Rd3 Ne8 Rd4 Ng7 Rd3 Kf6 Kf4 Bd8 Be3 Qf7 Rd2 Qf8 Kg3 Nh5+ Kh4 Ke5+ Bg5 Qf3 Be7 Bf5 Kg5 Bg4 Kh6 Kf4 Bf8 Bf6 Bd6+ Ke3
N2N2K1/1r5R/2BB1R1p/1P1q3Q/1n2NNrQ/k3n2b/p1p1qp1p/R3n3 w - - 0 1 illegal: No possible last move
1b1n1bQ1/1bR2n1B/2pkN2p/K2q4/1pPRB3/2Rp1Q2/2b2QpN/Q5r1 w - - 0 1 legal: proof: g4 e5 h4 a5 b4 axb4 d4 f5 dxe5 fxg4 Bg2 g5 Bf1 b5 Qd2 g3 Qd1 g4 Bh6 Qg5 Bh3 Qc1 Bf1 Ra6 Bd2 Rg6 Be3 Rg5 hxg5 Qb2 Bc1 Qxc1 e4 Ke7 f4 d5 c4 h6 a4 c6 g6 b3 g7 d4 f5 d3 e6 g2 a5 g3 e5 b2 f6+ Kd8 f7 Kc7 a6 Be7 f8Q Qe3+ Ne2 g1B a7 Bh2 a8Q Qc1 Nf4 Ba3 e7 Bg1 e8B Rh7 e6 Ba6 e7 Kd6 Bg6 Kc5 e8R+ Ne7 g8Q Qc3+ Nd2 b1B Rh4 Nd7 Ne6+ Kd6 Qdf3 Bh2 Bg2 Qd4 Nf1 Rg7 Kd2 Bb7 Rc8 Qd5 Kc3 Ne5 Bh7 Nf7 Rd4 Bc2 Rc7 Nd8 Rc1 Rg4 Q8f5 Ng6 Qa5 Bc5 Qa1 Ne5 Qf2 Rg5 Be4 Nef7 Q5f3 b4+ Kb2 Bb3 Rc3 Bc2 Ka2 g2 Kb2 Rh5 Ka2 Bg3 Kb2 Rh1 Nh2 Rg1 Ka2 Bb1+ Kb3 Be5 Ka4 Bc2+ Ka5 Ba7+ Nc5 Bb8 Kb6 Bg7 Ne6 Ke5 Qd2 Bf8 Qdf2 Qd6 Ka5 Qd7 Bd5 Kd6 Bde4+ Ke7 Rc8 Qd5+ Kb6 Kd7 Rc7+ Kd6 Nf4 Ba8 Ka6 Kc5 Ka5 Bb7 Ne6+ Kd6+
3Bkb2/pN1nbRpr/R2p2Qb/3bn3/4RP1R/2K1p3/Q2pq3/3NN2B w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 d4 fxe4 g4 hxg4 b6 c5 b7 cxd4 bxa8Q Bb7 Ra4 Ba6 Ra1 Bc8 Kd2 e5 h4 g3 c4 g2 b4 d3 c5 e3+ Kc3 e2 b5 e1B+ Qd2 e4 h5 Qh4 c6 Qg4 h6 Qf4 c7 Rh7 b6 Bc5 b7 Bb6 Nf3 g1B Ra6 Qf7 Bg2 Qg6 Rh4 Qg5 Bh1 Rh8 h7 Nc6 b8R Ne5 Qc6 Qh5 Rb7 Bc5 Qg6+ Nf7 Rb4 Bb7 c8N Be7 Rba4 Bd5 Nd6+ Kf8 Rc4 Nf6 Nb7 Ke8 Ba3 e3 Rce4 Bh2 Bd6 Qg4 Bc7 Bf4 Bb6 Qg2 Bd8 Bh6 Rhf4 d6 Rf5 Nd7 Rf6 Rg8 h8R Qf1 Rh7 Rh8 Rff4 Qe2 Rf5 Bg5 Rhh4 Rh7 Rf6 Bh6 Rf5 Nb8 Rff4 Kd7 Rf6 Ne5 Rf7 Ke8 Ng5 Be6 f4 Nbd7 Nf3 Bf2 Qa2 d2 Ne1 Bf8 Kc2 Bg3 Nc3 Bd5 Nd1 Bf2 Kc3 Bg3 Rh3 Bh4 Rh2 Bf6 Rh4 B6e7
Rq4k1/qbpR4/2r3pp/Qp2n2K/R3Qq1B/1q5p/RrN3NP/1B4N1 w - - 0 1 illegal: No possible last move, all moves rejected
k6K/qpQp1qbN/nP3n1q/2p5/1RQ1R3/1p2NRB1/1pq1N3/3N2rB w - - 0 1 illegal: Other
b1b3nB/b1p1Q1Q1/p2pQ3/k2p2N1/2Rr4/q4pN1/p2n2PB/KQ1RR3 w - - 0 1 illegal: No proof kernel
1b4Bn/qn4R1/r2Q4/Q1bNB2k/b1q3q1/4BKnr/q2Pr1NR/q2B1N2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 h5 e4 a5 b4 c5 g4 f5 b6 Kf7 b5 Kg6 e5 a4 e6 f3 b7 a3 e7 a2 e8N h3 g5 h2 b6 c3 Bd3 c4 Ba3 c2 Nf6 c1R Qb3 c3 Bc2 h4 Bb4 h3 Nh5 Qc7 Na3 Ra6 Nb5 Nd7 b8Q Re1 b7 Nh6 Na7 Nc5 Qd5 Re2+ Kf1 f2 Qb3 Bd7 Rd1 a1Q Bd3 c2 Ba3 c1B Qb5 Bb2 Nc6 Nf7 Bc2 Qa2 Ng3 Be5 Nb4 Rh4 Nd5 Nh8 Ba4 f4 Nf3 Rh5 Rg1 h1Q Qa5 h2 Ne1 Qe4 Ng2 h1N Qd8 Qec4 b8B Nb7 Bc5 Rh3 Be3 Bc5 Re1 Bc6 Bd1 Ba4 Qd7 Qc8 Qdc7 Qg4 Qd6+ Kg7 g6 Kh6 g7+ Kg5 Nf5 Kh5 g8B Qd4 Ngh4 Ng3+ Kg2 Qg5 Kf3 f1Q+ Bf2 Qdc4 Nfe3 Qf5 Rg2 Qg1 Rh2 Qc8 Bc7 Qa8 Nhg2 Qa7 Qc6 Bed6 Nf1 Be5 Be3 Bed6 Bd8 Bb8 Qd6 Qd4 Nh4 Qdb2 Bf6 Qc2 Be5 Nh1+ Ng3+ Kg5 Rf1 Qc1 Ke4 Qca1 Ngf5 Kh5 Re1 Qg6 Rg1 Qe6 Rg7 Qg6 Rf7 Qg4 Ng2 f3+ Bf4 f2 Rd7 f1Q Rg7 Qg3 Be5 Qff4+ Kd3 Qgg5 Ng3+ Kg4 Nf1 Kh5 Rc7 Qb4 Rg7 Qbc3+ Ke4 Ng3+ Kf3 Qcc4 Bf6 Qg6 Be5 Qgg4+
1R1Nr1r1/4bKQn/Qq1B2n1/4P1Q1/1Nn2n2/N1b2rRq/2b5/2kq1nNB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 Kc2 c5 d2 c6 d1Q c7 h2 Be2 a2 Bd2 f2 Bb4 f1R Bb5 f3 Qe3 f2 Qd3+ Kc1 Bc4 h3 Bc5 Nd7+ Ke6 Ndf6+ Kf7 Nh7 b8N Be7 b7 Bf5 c8Q Qb6 Qg3 d3 e5 d2 Nf3 Bc2 Rg1 h1N Na6 h2 Qg5 Ng3 b8N h1Q Nc6 Ne2 Nd8 Qh3 Nb4 Nf4 Qa6 Rb8 Rg3 Rc8 Ndc6 Re8 Be6 Rh1 Bf5 f1N Be4 Rh2 Bd5 Rf2 Ng1 Rf3 Be4 Bd6 Bd5 Ne7 g8Q Neg6 Qg7 Rhg8 Nd8 Be7 Bb7 Qe1 Be4 d1N Bd6 Nb2 Bb7 Nc4 Na3+ Kb2 Rd1 a1B Rd5 Qd1 Rb5 Kc1 Ba8 Qf2 Rb8 Qb6 Bc6 Bc3 Be4 Re3 Bh1 Rf3
8/kBr5/3rrRnP/b1q1B1Q1/Nn1n1r1r/3B3q/RRqQ2bN/K1B1b3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 Kc2 Kd7 Kb2 Kc7 e4 Kb7 c5 f3 b6 f4 b5 a4 e5 g3 e6 a3+ Ka2 d3 h5 d2 e7 d4 e8Q g2 Qa4 d1R Qe6 f2 Qf6 g4 Bd3 f1Q Bh7 d3 Rh2 g3 Nf3 g1R Qh6 d2 Qb4 g2 Nd4 f3 Qe3 f2 Qe8 Bh3 Bc2 Qc8 Bd3 Ra7 Be2 Nc6 Qb2 Nge7 Bd3 Ng6 Nf3 Nd4 c6+ Kb8 b7 Bb4 Qe2 Ba5 Nc3 Qf8 Rh1 Qc5 Nh2 Re1 Qb1 d1Q Qd2 Re6 Na4 Qdc2+ Qb2 Ra6 c7+ Ka7 b8R Rad6 c8B Rh7 h6 Rc7 Qg5 Be1 Bf5 Qfd3 Ba6 f1R Bb7 Rf4 Bfe4 Qf3 Bd3 Rf1 Rf8 g1B Rf6 Bg2 Rb1 Qg3 Ka1 a2 Qc3 Qh3 Rb2 Be3 Qd2 Rh4 Rg1 Rff4 Rf1 Nc6 Rf2 Bd4 Re2 Bc3 Rf2 Ba5 b6+ Kb8 Bba6 Nd4 b7 Ka7 b8B+ Ka8 Rb4 Rb7 Bc7 Rc6 Qe2 Qd2 Be5 Rbc7 Bb7+ Ka7 Rb3 Qd1 Kb2 a1N Ra3 Ra6 Ra2 Nac2 Kb1 Nb4 Ka1 Rad6 Qe3 Nd5 Rfb2 Qdc2 Qd2 Nb4
1QqN2b1/rr2QK1R/bPnrR3/1n1krN2/1qN2B1b/8/R1BqRr2/6n1 w - - 0 1 illegal: No possible last move
n2rn2R/RnB1kb1Q/n4NKn/2b1B3/2qqNR2/r3P1n1/1nR5/QBb5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 c4 h5 g4 a5 b4 a4 e3 a3 c5 f3 b6 f2 b7 f4 c6 h3 b5 f3 c7 a2 b6 h2 g5 h4 g6 h3 g7 Ra3+ Nc3 Bc5 Ne2 Be6 c8Q Bf7 Ng1 Nh6 g8R+ Ke7 Bd2 Na6 Be2 f1Q b8R f2 Rb1 a1B b7 Bb2 Rg3 Bc1 Rb4 Qb6 Rb2 Rd8 Kc2 d3+ Kb1 d4 Rg7 Qb4 Be1 d2 Ne4 d3 Nf6 Qd4 Qc2 d1N Bc3 d2 Bd3 Qe2 Nf3 f1N Ng5 Nf2 Nge4 d1N Ra8 Nfg4 b8B Qa4 Ra2 Nb2 Bce5 Qd4 Rg1 h1N Bbc7 h2 Qb7 Qg2 Qc3 Nd2+ Kc2 Ng3 Rf1 h1N Rf4 Ngf5 Ra7 Qg3 Rg8 Ndc4 Rh8 Qh4 Qe1 Nb6 Qc3 Nd1 Qa1 Na8 Qbb1 Nd6 Qb7 Bb2 Kd2 Qc4 Bb1 Qd4+ Ke2 Ng3+ Kf3 Bc1 Rc2 Nb2 Qd5 Be8 Qg8 Bf7 Qh7 Qc4 Rf5 Nb7 Kf4 Qh2 Kg5 Qd2 Rf4 Qdd4 Rc3 Nhf5 Rc2 Ng7 Rff2 Nh6 Rf4 Bd5 Kg6 Be6 Qg8 Ne8 Qh7+ Bf7+
2Kn3r/P4Nb1/1qn2B2/3bBQ2/b1R3Q1/kn1NBBNr/1bq5/bb2b1R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 e4 f5 a5 g5 h5 b5 h6 b3 d4+ Kb4 h7 c5 e5 g3+ Kf3 g4+ Kg2 b2 a6 c4 d6 c3 d5 c2 e6 Bd7 a7 Qb6 e7 Bg7 e8Q Nc6 Ne2 Nd8 Rh5 f3+ Kh1 f2 Kg2 f4 Qf8 f3+ Kh1 g2+ Kh2 g1B+ Kg3 Ne7 Kf4 g3 Nbc3 b1Q Ne4 g2 Nc5 Nec6 Be3 c1B Rh4 Qc2 Ng3 Bcb2 Be2 f1B Qf5 f2 Bf3 Bc4 Nd3+ Kb3 Rg4 f1N Ra4 Be8 d7 b4 d6 Bf2 Ra1 g1B Rh4 Rg8 h8B Nd2 Qe2 Bh2 Rg1 Be1 Kg5 Bd5 Rc4 Ka3 Qd1 Nb7 d8N b3 Nf7 Nbd8 d7 Ba1 Kg4 b2 Qe2 b1B Qg2 Ne6 d8B Nb3 Bf6 Ned8 Qh3 Rc8 Kf4 Rc7 Qhg4 Re7 Kg5 Re6 Be5 Rh6 Kf4 Rh3 Bf6 Ncd4 Ke5 N4c6+ Kd6 Rf8 Bfg5 Bgb2 Be5 Rfh8 Bgf6 Bd7 Nf1 Bf4 Ng3 Bg5 Qg6 Bh6 Q6f5 Qa6 Kc7 Bg7 Qge4 Be8 Qeg4 Qb6+ Kc8 Ncd4 Qff4 Ba4 Qff5 N4c6
2r1Rr2/b1RnB3/1Q1P2Rr/b5Q1/N5bn/bnR3bN/n1n1BK2/1kq3Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 Kd4 g6 f5 e5 c5 e6 h5 b6 a5 g7 f3 e7 c3 e8Q f2+ Ke2 h3 b7 h2 b5 c2 b6 c4 d3 c3 Bb2 c1B Qe7 f4 Qc2 f3+ Kd1 a4 Qe1 h4 Nh3 a3 Ra2 Bf4 Qe8 Qg5 Qee2 Bb4 Qcd2 Nh6 g8R Nf5 Ba1 Ba5 Bg2 f1N Ke1 f2+ Kd1 N1e3+ Kc1 f1N Bc6 Nc2 Kd1 Nd7 Re8 Rf8 Qde1 Nd2 b8R Nb3 Rf1 h1N b7 Nhg3 Bb5 Ne4 Rf3 Qh6 Rb2 a2 Q2d2 Qc6 Ke2 Qc5 Nf2 h3 Qg1 h2 Qdc1 h1R Nh3+ Be3 Re6 Nh4 Rg6 Qc6 Qg5 Bf4 Re3 Qc5 Qcg1 Qc4 Nd2 Qc5 Nc4 Qa3 Rb1 Qc1 Bb2 a1B Ba3 Bb2 Be7 Ba3 Nb6 Bc5 Na4 Ba7 Ra1 Nb4 Nf2 c2 Nh3 Nc3+ Kf2 Nca2 Ba6 Qd1 Rg3 c1B Rf3 Bb2 Rc1 Ba3 Rc7 Qc1 Rg3 Nc2 Re3 Nb6 Rf3 Be6 Re8 Rc8 b8Q Bg4 Re3 Nd7 Qb6+ Nbc5 Nb2 Kc3 d4+ Kd2 Na4 Nb3 Bf1 Kd1 d5 Kd2 d6 Kd1 Nc5 Kd2 Bd3 Kc3 Be2+ Kb2 Na4+ Ka1 Rec3 Kb1 Qd5 Nf3 Ng5 Rh6 Nh3 Nh4 Qg5 Bg3+
1b3QB1/3N1Bq1/K1k1b1q1/bR1bn2r/1B1b4/3Q3r/1qNn1bQP/1BRn4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 d5 b4 Kd7 e4 f5 c4 g5 e5 f3 c5 f4 b6 a4 b5 f2 b7 g3 b6 a3 e6+ Kc6 e7 g2 e8B+ Nd7 b8Q f3 b7 g4 Qb3 a2 Qf4 g3 b8Q Qc7 Qf6+ Bd6 Nd2 Rh3 Bb2 Ra5 Qg7 Nf6 Bh5 Ne5+ Kc2 d3+ Kc3 d4+ Kb4 Be6 Ba3 Ne4 Qf6 Qg7 Qbf8 Bb8 Nb1 d2 Q6d8 d1Q Bf7 d3 Qb2 d2 Bc4 f1Q Qd3 f2 Nf3 Qc2 Bg8 Qe2 Rc1 f1B Bf7 Kc7 c6 g1B Bb3 Kb6 c7 d1N c8B g2 Bb7 Nd2 Be4 Bf2 Beg6 Nd7 Ne5 g1B Bh7 Kc7 Bhg8 Qc6 Bc2 Rb5+ Ka4 Bg2 Bb4 Bgd5 Na3 Qd6 Rab1 a1B Qa2 Bc3 Rb2 Bfd4 Bb1 Bgf2 Nc2 Qb6 Rb3 Qeg4 Rb2 Q4g6 Rb3 Nf6 Nd7 Kc6 Rb2 Ng4 Rb3 Ne5 Qb2 Qd8 Qa2 Qdf6 Qb2 Rb6 Ka5 Rb5+ Ka6 Rc5 Ba3 Ba5 Rb5 Rc3 Bb4 Rh5 Qa3 Rb3 Qf1 Rbh3 Qg2 Qf3 Qb3 Qc3 Qa3 Qa1 Qd3 Qb2
rR6/RBK4R/b2Q2q1/brbn1bQ1/1q4rB/1n2Pk1N/1R1b4/N1Q2qb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Kf6 h4 Ke5 c4 Ke4 b6 a5 b5 g5 b7 d5 c5 f5 c6 g3+ Kg2 f3+ Kh3 a4 h5 a3 h6 d3 h7 g2 Kg3 f2 c7 a2 b6 d2 Rh2 g4 Qe1 d1Q Qc3 d4 Rh5 d3 Bb2 d2 Qc5 f4+ Kh2 f3 Kg3 Bh6 Rg5 Qb3 Rg6 d1R Bg7 Nd7 b8R Ne7 b7 Rd4 Qc3 Nd5 Qc1 Qg8 Rg5 N5b6 Na3 Qb4 Nc2 Nc5 Nh3 g1B Bf6 Nb3 Rb5 Bf5 c8Q Bd2 Bg2 f1B Qc5 Qg6 Bh4 Re8 h8R Re5 Rh7 Rc4 Qc8 Bc5 e3 Rd4 Qg8 Rc4 Rb1 a1B Ra5 Bac3 Rb2 Rd4 Qd8 Ba6 Qg5 Red5 Na1 Re5 Bf1 f2 Bb5 f1Q Bc6+ Red5 Ra4 Be2 Ra7 Ba6 Rg8 Rc4 b8Q Rd4 Qd6 Rc4 Kh2 Kf3 Bb7 B5d4 Bc8 Rb5 Re8 Bc5 Bb7+ Re4 Reh8 Qfc4 Rb8 g3+ Kh1 g2+ Kh2 Ke2 Kg3 g1B Bd5 Rd4 Be4 Qd3 Kf4 Qdc4 Ke5 Qd3 Bb7 Rg4+ Qd4 Qb1 Qc2 Qf1 Qc1 Nd7+ Kd5 Kf3 Qdf6 Nb6+ Kc6 Qe4+ Kc7 Ba5 Bc8 Qd4 Qd6 Qb4 Bb7+ Nd5+
Bnq5/1n2q1Q1/N2Q1Rn1/1b1Q2r1/1BPb1KN1/n1r1nn2/1k2qN2/1r4QR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 b6 f5 b7 a5 g5 h3 b5 f3 g6 f4 g7 d3 b6 Kd4 e5 f2 e6 h2 e7 a4 e8Q f3 Qg6 h4 Qh5 a3 Nc3 a2 Qe1 h3 Ba3 Qe7 Nd1 Bd7 Nc3 Bb5 Bd6 Ra3 Bg2 f1R Qg5 f2 Bg3 Rh5 Qh6 Rg5 Na4 Rc3 Rd1 a1N Bf4 Nc2 Qg6 Na3 Qee6 Re1 Ra1 Rec1 Nb2 Rb1 Nd1 f1N+ Ke1 Nd2 Kf2 Nf3 Bf1 d2 Ne3 d1Q Ng4 Qd3 Kg3 Qe2 Qgf7 Kd3 Qe5 Kc2 Qc7 d4 Bg2 d3 Qd5 d2 Bd6 d1N Bb4 Kb2 Kf4 Ne3 Qcd6 Nh6 g8Q Bg7 Qh8 Bd4 Qg7 Nf7 Qdg6 Nd8 Qgd6 Nbc6 b8Q Nb7 Qa8 Nb8 Qa7 Nac2 Ra4 Na3 Ra6 Nf5 Qc7 N5h4 Qcd6 Ng6+ Kg3 Rf1 Q5e6 Nc5 b7 Kc1 Qde5 Nbd7 b8N Kb2 Q6f5 Rd1 Rf6 Be3 Na6 Ne1 Qd6 Rb1 Ba8 Nf3 Qfd5 Nb7 Qad4 Nb8 Qd1 Rf5 Nh6 Bd4 Qf1 Q2e6 Qd1 Qc8 Ng4 Rg5 Ne2 Rf5 Rg1 h1Q Qgf7 h2 Qg7 Rg5 Re1 Qf1 Nf4 Qd3 Nh3 Qde2 Nf2 h1N+ Kg2 Ng3 Rh1 Qf5 Qg1 Qc8 Kh3 Nf5 Kg2 Ne3+ Kg3 Nf8 Kf4 Ng6+
2n1q2R/1kN2rQ1/5r1q/1N2PqQn/K1BrR2r/r2br3/b2QQb2/2B4B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 e4 h5 c4 f5 Kc2 d5 Kb3 Kd7 g4 Kc7 c5 f3 c6 f2 e5 d3 g5 d2 g6 a4+ Kc3 a3 Kb3 f4 g7 a2 Qf3 d1R Bc4 f1B Bd2 d4 Bf7 h3 Bb4 h4 Qe4 f3 Qe2 f2 Nf3 d3 Ne1 d2 Na3 h2 Nf3 h3 Nd4 Rh7 Bc4 Nf6 g8Q Qe8 Qg7+ Nbd7 b6+ Kb8 c7+ Kb7 Rb1 a1R Ne6 Bc5 Nb5 Nh5 Ba3 Re1 Rc1 Rb8 Ka4 d1R b4 Rd4 Qd2 Re3 Re1 Bd3 Qe2 Kc6 b7 f1Q Qd2 Qff7 Re2 Rf1 Bc1 Rf6 Ree1 Ba7 Qg5 Ra8 b8Q Ba6 c8B Rg7 Nec7 Nb6+ Kb3 Qfd7 Ka3 Qf5 Bb7+ Kd7 Re2 Nc8 Ka4 Rgf7 Be4 Bb1 Qb7 Ba2 Bed5 Rb3 Re4 Re3 Nc3 Bc5 b5 Ra7 b6 Ra8 Re1 h1Q N3b5 h2 Qa7 Kd8 b7 Bb6 Rh4 Kd7 Bf3 Bc5 Re4 Kc6 b8Q Bb6 Rg1 Bc5 Rg3 Bb6 Rh3 Bc5 Bb2 Qc1 Bg2 h1R Rhh4 Rhh3 Ba3 Qh1 Bc1 Qh2 Bh1 Qhf4 Qgg2 Qh6 Qge2 Rh2 Rhg4 Rhh3 Rg8 Rh4 Rh8 Bb6 Ne6 Bc5 Qe7 Bb6 Qba7 Bc5 Qad7+ Kb6 Nec7 Kb7 Qed8 Rb6 Qg2 Rb3 Na7 Re7 Qge2 Rdd6 Bb5 Bf2 Ka5 Rd4 Bd3 Rh7 Q8g5 Rf6 Qf7 Rg7 Qfg6 Rgd7 Qg7 Rdf7 Bb5 Rf3 Bd3 B6c4 Kb4 Re3 Nab5 Bcb3+ Bc4 Ra3 Rh7 Bc2 Rh8 Rac3 Ka5 Bd3 Ka4 Ra3+
nkN1n1b1/2r1N3/4q3/3Pq2N/K2nBqRb/1N3qq1/R1RqQ1r1/b2QB3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 Kc7 d4 a5 Kd2 h5 Kc3 f5 e5 a4 d5 f3 e6 f2 g5 h3 g6 f4 e7 h2 e8Q f3 g7 a3 Bf4+ Qd6 Qg6 a2 Qh6 h4 Ne2 h3 Qd3 Na6 b6+ Kb8 b7 Qe5+ Nd4 Be6 b5 Nc7 Qhg6 Ra7 Qf6 Be7 Rg1 h1Q Bg3 h2 Qe4 Na8 Kb2 c3+ Kb3 c2 Qf7 c1Q Bd3 f1Q Qe2 f2 Nf5 Qfe1 Be4 f1Q Nd2 Bh4 Qfh5 Nf6 g8N Ne8 Nge7 Rg8 Nc8 Qhg2 Ng7 h1Q Qhg4 Bf7 Nh5 c4+ Kb4 c3 Nb3 Qed2 Be1 Qhh3 Qgf3 Qg6 Rg4 Qge6 Qd1 Qdf4 Qfe2 Qcd2 Rc1 a1B Rc2 Q1f3 Ra2 Kc7 b8N Qhg3 b6+ Kb7 Nc6 c2+ Kb5 c1N N6e7 Kb8 b7 Rg7 Rc2 Bg8 Ra2 Nd3 Rc2 Nb4 Ra2 Nc6 Rc2 Kc7 b8R Rg5 Rb6 Rg7 Ra6 Kb8 Ra3 Rc7 Raa2 Nd4+ Ka4 Rc3 Nf5 Rgc7 Nfe7 Re3 Qf2 Re2 Qe3 Rf2 Qee2 Rg2
3BKN2/n4r2/Q2R1P2/r1R5/rqnrQb1Q/3b2Bq/3BnrB1/r2Nq1k1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe3 Kg4 f5 e1Q f6 h3 Qf2 e4+ Kc2 a2 Kb3 e3 Nd2 e2 Qg2 d3 Nc4 d4 Qd5 d2 Qe5 d1R Qe8 d3 Bg2 d2 Nf3 Qd6 Nh4 Ra5 Nb2 Bf5 Kc4 Rh7 c8Q Nh6 Ng6 Nc6 b8B Nf7 b7 Bh6 Qe4+ Bf4 Nf8 Na7 Bc7 Qe6+ Kb4 Ne5 b8B Rf7 Qa6 Nc4 Bd8 Qd7 Rg1 h1N Bbc7 Ra4+ Kc5 h2 Rb1 a1R Bb8 Kg5 g4 Kh4 g5 Kg3 g6 Kf2 g7 Ng3 g8Q h1R Qg4 Rh5 Qh4 Bg6+ Be5 Qh3 Kd5 Rf5 Ke6 Ra5 Rh1 R1a4 Ra1 Bh7 Ra3 Bg6 Rd3 Bh7 Rh2 Kg1 Rd6 Bg6 Be7 Bh7 Kd7 Bg6 Ke8 Bh7 Nd3 Bg6 Nf2 Bh7 Ba3 Ra1 Bd8 d1R Bb4 Rd4 Nd1 Qd2 Bc3 e1Q Bb4 Ne2 Bc3 Bh6 Bg3 Rf2 Bb4 Qb2 Bd2 Qb4 Qg5 Qc8 Rh5 Qh3 Qgh4 Bf4 Rc5 Bg6 Qf3 Bb1 Qe4 Bd3
2Q2nnQ/K1Nq1Rq1/n1P1brQ1/N1B1R3/2n1N1r1/3Qb1rn/k3B1b1/4n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 f5 e4 a5 g4 h5 b4 a4 b6 d3 Kb5 h3 c4 h2 g5 h4 b7 d2 g6 f3 g7 f2 Bh3 f1R Qe1 d1Q Bg5 f4 Qe3 f3 Bg2 f2 Na3 h3 Bh4 Qc7 Ra2 Na6 Nb1 a3 Rc2 a2 b8N a1N Qg5 Nb3 Na3 Nbc5 Bf3 Ne6 Be2 Be7 Qe3 Bg5 Nf3 Nf8 Rg1 h1B Nd2 h2 Nc6 Bg2 Na5 h1N c5+ Ke6 c6 d5 e5 d4 Ne4 Kd5 e6 d3 e7 d2 e8Q Be6 Bg3 Rh4 Bd6 Rg4 Qg6 Rc8 Qh3 Be3 Bc5 Qd7 Kb6 Qa1 b5 d1N Rc1 Nb2 Re1 Nd3 Qf3 Ng3 Rh1 Nh5 Rh3 Nhf4 Rh7 Nh3 Qg3 Nh6 g8Q Qag7 Qh8 Ng8 Qf3 Rg1 Qg3 f1N Qf3 Nc7 Ka7 Nd2 b6 Na6+ b7 Nc4 Nb5 Re8 Qf1 Re7 Qf3 Rf7 Qf1 Rf6 Nc7+ Ke5 b8Q Rg3 Rb1 Ne1 Qc8 Rg4 Rb6 Rg3 Bb4 Kd4 Rb5 Rg4 Re5 Rg3 Nd6 Rg4 Bc5+ Kc3 Ne4+ Kb2 Qf3 Ka2 Qg3 Qh6 Rf7 Qg7 Qf3 Bh1 Qff5 R1g3 Qf1 Bg2 Qf3 Bf4 Qd3 Be3
1b2B1n1/1rNq2rB/b1Pk1b2/Q3N1b1/q5N1/1b3NR1/r1R1QK2/2n1qbB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 c4 Ke7 e4 a5 b4 g5 h4 d5 b6 f5 c5 d3 h5 a4 e5 g3 e6 g2 b5 d4 h6 f3 b7 f4 c6 f2+ Kd2 a3 h7 g4 b6 g3 Qh5 a2 Qg5+ Kd6 e7 f3 e8B Be7 Qf5 Qd7 Rh2 Bg5+ Kd1 d2 Nh3 g1R Qg4 Na6 b8N g2 b7 Nb4 Na6 Nd3 b8N Bb7 Bb2 Nc1 Nc7 Ba6 Qf5 Ra7 Qa5 Rb7 Bc3 Rh1 Bb2 g1B Bd3 f1B Re2 Bh2 Nf2 Rg1 Ng4 f2 Bf5 Qg7 Nd7 Bhf4 Nde5 Qd7 Re3 Bh2 Rg3 Rg2 Kc2 d3+ Kc3 d1B Kd4 Bc2 Nd2 Bb3 Ndf3 d2 Ke4 d1Q Bd4 Rg1 Rb1 a1B Rb2 Qe1+ Re2 Qb4 Rc2 Qa4 Bfg6 Bfc4 Be3 f1Q Bf2 Rg2 Be3 Qh1 Bg1 Bd4 Bf5 Bf1 Bfg6 Ne7 Bf5 Rg8 h8Q Rg7 Qh5 Ng8 Bh7 Rf2 Rc5 Ra2 Rc2 Bf6 Kf4 Bc3+ Ke3 Bd2+ Kf2 Bdg5 Rh3 Bhf4 Rg3 Be3+ Ke1 Ba7 Qh2 Bb8 Qe2 Qh3 Kf2 Qh4 Ngh2 Qhb4 Nhg4 Qe1+
Q2brBBK/2NR1rPN/3r1QRr/2nr4/N2n3q/1k2N2b/1n3q2/3r2bB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 b6 f3 Nc3 h2 Nh3 a2 Rg1 h1R Ba3 f2 Nf4 h3 Na4 h2 Bg2 f1Q Qf3 d2 Rd1 a1B Nd5 Na6 b8N f4 b7 Nc5 Na6 Rh6 b8Q Qf2 Nac7 d3+ c3 Re6+ Kf5 Qdh4 e5 Rd6+ e6 Nh6+ Kg6 Be7 Kh7 Bd8 e7 Bh3 e8N Nf5+ Kg8 Ra5 Nef6 Nd4 Qa8 Kb3 Ne3 Rb5 Qfc6 f3 c4 Rb8 Nh7 Rb5 Rc1 d1R Kh8 d2 Bb4 Rb8 Qca6 Rd5 Qf6 Rb6 Rc2 Rbd6 Ba3 Re1 Bb4 d1N Rd2 Nb2 Rd1 Nce6 c5 Re2 c6 Nc5 Rge1 Rg1 Bh1 Rg6 Rg1 Rh6 Rg6 Re1 Bg2 h1R Rd2 Rhf1 Bh1 Re2 Ne8 Rb1 c7 Rd1 c8B Ree1 Nc7 Re2 Nc2 Re7 Be6 Re8+ Bg8 Nf5 Na3 Rde6 Rg3 Qg1 Qb8 Nbd3 Bc3+ Nb7 Bb4 f2 Qa8 f1R Ncb5 Rde5 Bf8 Bd4 Qe7 Nc5 Rg5 Nb2 Nc4 Qh2 Qf7 Bg1 Rd7 Nd4 Nc7 Rd5 Rg6 Red6 Ne3 Rf5 Qe6 Rf7 Qf6 Q2f2
3bnq2/Q1P1n3/1r2q3/1N4k1/b1R2Nr1/RrN1B1NQ/b1bR1bBn/2b4K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kf6 h4 g5 e4 a5 b4 d5 c4 g3 h5 d3 h6 d2 h7 d4 c5 g4 c6 a4 b6 a3 b7 d3 c7 a2 e5+ Kg5 e6 f5 e7 Qe8 b5 Nf6 b6 Be6 Qe1 d1B Bd2 Ra6 Rh4 Nc6 b8R Bh6 b7 Ba4 Bc3 f3+ Kh1 g2+ Kh2 d2 Qe2 d1B Qb2 f4 Qb4 f2 Ra8 f3 b8N Bdc2 Qd4 Rb6 Ne2 g1R Bg2 f1Q Ng3 f2 Nd7 Qe1 Ba5 Qf8 e8N Ne7 Nd6 Ne8 Nc3 Qe3 Rd1 a1B Ra7 Ba2 Ndb5 Qe6 Ne5 Rg8 Rd3 Rb1 h8Q f1N+ Kh1 Rb3 Rd2 Nh2 Ng6 Bb2 Bb4 Bc1 Bc5 Bg7 Nf4 Bf6 Qg1 Rg6 Be3 Rg7 Ngh5 g3 Ra8 Ng6 Qh7 Bd8 Ra6 Ne7 Qf5+ Kh6 Qh3 Kg5 Nfd5+ Kg6 Bf2 Rd6 Bf3 Kh6 Rhd4 Rg4 Ndf4 Kg5 Rc4 Rc6 Ba7 Rd6 Qb6 Rc6 Qb8 Rd6 Be3 Rb6 Qa7 g2+ Kg1 Qd5 Ng3 Qe6 Nd4 Bb5 Ra3 Ba4 Ndb5 Rb8 Kf2 g1B+ Kg2 Rb7 Kh1 Bf2 Bg2 Rb6
r1R2Nbr/q2B2b1/N1n3Q1/1n2bB2/kBR2b2/q4R2/2P1n1b1/nQ1K1n1R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 a5 e4 d5 b4 Kd7 e5 g5 b6 Kc6 h5 f5 b7 a4 h6 g3 h7 f3 e6 a3 e7 g4 e8B+ Qd7 Bh3 Kb5 Bf1+ d3 Nh3 f2+ Kd2 g2 Bg6 g1B Bh5 f4 Ra2 f3 Rh2 d4 Bg2 f1B Bb2 g3 Ra1 a2 Bg4 f2 B4f3 Ne7 Ng5 Ng6 Bg4 Rg8 h8Q Nf4 B2h3 g2 Nh7 Ne2 Qf6 Bg7 Bc3 Rh8 Rh1 Bh2 Nf8 g1B Qg6 Bg2 Qe1 Bhe5 Na3+ Ka4 b5 Qe7 b6 Bgh2 Nb5 Qa3 Bb4 Be6 Nc7 Bg8 Na6 Bhg3 Rb1 a1N Rb3 Bh2 Qb1 f1N+ Ke1 Bhf4 Rc3 Rh4 Bc8 Rh8 Bhf5 d2+ Kf2 d1N+ Ke1 d3 Bcd7+ Nc6 Rb3 Ndc3 b8R Nb5 b7 Na5 Re8 Bd6 b8R Nc6 Re4 Bde5 Rc8 d2+ Kf2 d1Q Rc4 Qd4+ Ke1 Na5 Rf3 Qa7 Kd1 Nc6
Q1q1B2K/Q1Rr2r1/n1R3n1/4Pn2/k2BrQq1/1NBb3r/2n1nbQ1/5N1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 h5 e4 a5 b4 f5 c4 f3 b6 Kc6 c5 Kb5 b7 f4 e5 h3 g5 f2 g6 f3 c6 h4 g7 h2 c7 h3 Qe1 a4 Qd1 a3 Qb3 a2 Qd1 Nh6 g8Q Ra7 Qg6 Nf5 Qg7 Rh4 Qf6 Bc5 Bf4 Na6 Bd2 Re4 b8B Nh4 Bc3 Bf5 c8Q Rg7 Qe2 Ka4 b5 Bg6 Qb7 Qc8 b6 Bf5 Bg2 f1N Nd2 f2 Rc1 a1N Nb3 Ng3 Qa8 f1N b7 Nc2 Nf3 Nfe3 Nfd2 Bg6 Bf1 Nef5 Qg2 Ne2 Ba7 Bh7 Rg1 h1R b8Q h2 Qfg5 Bb6 Qf4 Bg6 Qh3 Bh7 Rg6 Bc5 Bg2 Bb6 Nf1 Bc5 Kd2 d3 Rc6 Bf2 Bad4 Bg6 Qba7 Bh7 Bc5 d4 Bf3 Bg6 Bh5 Bh7 Be8 Bg6 Kd1 d2 Qhg3 Rg1 Qh3 h1R Qg2 Rh3 Bb6 Rgh1 Bc5 Nb4 Bb6 Na2 Kc2 d1R Kb2 d3 Bbd4 d2 Kc2 Ne3+ Kd3 Nef5+ Kc4 Nb4 Rc2 Bh7 Rc1 Nc2 Kd5 Rd7+ Ke6 Bg6 Ne3 Rdg1 Kf6 d1Q Nf1 Bh7 Bc5 Qd4 Rc7 Qc4 B5d4 Qg8 Rc6 Qg4 Rc7 Ne7 Kf7 Nef5+ Kf8 Bg6 Kg8 Bf7+ Kh8 Bc4 Ra1+ Na3 Rc1 Qf3 Qgg5 Bd3 Be1 Rg4 R1c5 Nc2 Bec3 Rgg1 Qgg3 Rg2 Qh2 Rg7 R5c6 Qg4 Qg2 Ng6#
3N4/B2K1R1q/q2q2P1/3nB2R/1bq1Br1Q/3b4/B1kqbr1b/Rb1N1Qn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 b4 Ke4 c4 d5+ Kh5 a5 g4 f5 g5 a4 c5 a3 g6 a2 e3 h3 b6 h2 b7 d3 b5 d2 c6 d4 b6 f3 c7 f4 Qb3 d1B Ne2 d3 Bh3 d2 Nd4 f2+ Ne2 f1B Qf7 Kd3 e4 f3 e5 f2 e6 Ra4 e7 Nf6+ Kg5 h5 e8B h4 Bb5+ Kc2 Rg1 h1Q Nbc3 Nd5+ Qf6 Nd7 Kf5 Bb4 Ke6 Rf8 Nf4 Bde2 b8Q d1Q b7 Qd2 Bg2 h3 Qh4 h2 Bb2 Ne5+ Bd7 Bd3 Nd1 Bfe2 Rf1 Nf3 Be5 Ng1 Be4 Qf3 Qa8 h1Q b8B Rf7 Qa6 Qg4+ Bf5 Qh2 Ba7 Qg8 Qb5 Qh7 Qa6 Bb7 c8R+ Bc6 Rf8 Bb5 Re1 f1Q Rh8 Bc6 Be8 Rf8 Bf7 Ba8 Kd7 Bb7 Rb1 a1B Ne6 Qc4 Nd8 Ba8 Be4 Bb2 Bf6 Be5 Ra1 Bb8 Bg7 Qg3 Be6 Rf2 Rf8 Qe5 Rf7 Qed4 Qb5 Bh2 Be5 Qb6 Re7 Qa6 Bg8 Qg2 Rf7 Qg3 Rf1 Rg2 Rf5 Rf2 Rh5 Qgf4 Qb6 Qf6 Qe3 Qfb6 Qf3 Qd6+ Ke8 Bb7 Qfh3 Bc8 Qf1 Bf5 Rg7 Qd4 Bb8 Nb6 Ra3 Be6 Bd5 Bc3 Ra1 Rb4 Bf3 Ba2 Ba7 Bb1 Ba2 Nd5 Rf7 Q4c5 Bh1 Rbf4 Bg2 Qcc4 Be4 Qf8+ Kd7 Bb4 Rg5 Qfc5 Rh5 Qcd6+
1Kb1B3/Q4bQ1/1BP1R1b1/3n1NN1/b1RR1B1n/3nb3/2nrq3/R1r1qn1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 Ke4 g4 d5+ Kb3 a5 Ka4 h5 c4 d3 b4 h3 c5 d4 g5 d2 g6 h2 e3 d3 b6 f3 Kb5 f4 b7 f2 g7 a4 c6 a3 Bb2 h4 Ra2 f3 Bg2 f1N Ra1 a2 Qa4 d1N Qa7 d2 Bh3 f2 Qc5 Nf6 g8Q Nd5 Bd7 h3 Qg7 Na6 b8B Qh4 Qa7 Bc5 Nf3 Rd8 Be8 Rd7 Rg1 h1B Na3 h2 Nc2 Rd8 Rc1 a1N Ncd4 Nc2 Nf5 Bd4 Ba3 Nc5 Bf4 Nd3 Ra1 Rd6 Rg4 Bg2 Ka5 h1B b5 Bh3 b6 Be6 Ka6 Bf7 Ne7 Qh5 Rh4 Bc8+ b7 Bb6 Bc5 Rb8 Ne5 Qe2 Nf5 Bf3 Bd4 B3h5 Nf3 Bhg6 Bc5 N1c3 Rg4 d1B Bd4 Ne7 Bc5 Ba5 Bb6 Ncd5 Rh4 Bd2 Rg4 Bd7 Rh4 Rd8 b8R Re6 Kb7 Bc8+ Ka8 Rd7 Rb7 Re5 Kb8 Qe1 N5d4 Nf5 Rg4 Nh4 Nf5 Rd8 Rd7 Qe2 N3d4 Re7 Ne6 Kf3 e4 Be3 e5 Qe1 Bh6 Qe2 Rc4 Kg2 Bf4 Kh1 Ng5 Re6 Qf6 Rd6 e6 Qe1 e7 Re6 Rd4 Re4 Rb4 Rc4 Qg7 Nf6 Ra2 Nd4 Qb7 Rc1 Bfc7 Ba4 Qa7 Nc5 Bf4 Nh2 Rc4 f1Q Ra1 Nc2 Rd5 Rd6 Bd7 Qfe2 e8R Nf1 Rd3 Rd5 Re6 Rd4 Be8 Nd5 Rb3 Rdd1 Rd3 Rd2 Rdd4 Nd3
R1n1nR1q/1k2q3/4r3/1N3R1r/1b2bQbb/bNN2B2/1QqR1r1P/2r3BK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 Kg2 a5 e4 d5 b4 Kd7 c4 Kc7 c5 f5 e5 f3+ Kf2 a4 b6+ Kb7 b5 a3 e6 g3+ Ke1 a2 e7 d3 e8R d4 Qa4 f2+ Kd1 f4 Re3 g4 Bb2 g2 Re7+ Nd7 Re1 d2 Ke2 d1B+ Kd3 g3 Ke4 f3 Qc4 d3 Bd4 d2 Re2 Ne7 Nc3 Ra6 Be3 Rh5 c6+ Kb8 b7 Nf6+ Kf4 Bg4 Ba7+ Kc7 b8R Nc8 Qf7+ Qe7 b6+ Kd8 b7 Kc7 Re5 Ne8 Be2 f1R Rf5 f2 Nf3 g1B Nd4 g2 Kg3 Bc2 Nb3 d1Q Bf3 Be4 Ra8 Qc2 Rd1 a1Q Rd2 Rd1 Bd4 f1R b8Q+ Kd8 Qg7 Rc1 Qf4 Rf2 c7+ Kd7 Bb6+ Kc6 Qf6+ Kb7 Ba7 Ncd6 c8N Qab2 Bc5 Rc6 Na7 Nc8 Nab5 Re6 Nb1 Qe5 Be3 Qb8 Qb2 Qe5 N1c3 Qh8 Na3 Qeg7 Bb6 Bb4 Nab5 Qe7 Be3 Rff1 Ba7 Bgc5 Bb6 g1B Kg2 Bgf2 Rf8 Rfd1 Rf1 Bh4 Kh1 Re1 Rf5 Re2 Rf8 Bd6 Bg1 Rf2 Re1 Bc6 Re5 Be4 Red5 Ba3 Rdf5 Bdb4
2q1N1q1/1n1BR2n/1Q5q/1Br1R3/1Kb1Q1Nb/rn1bB1k1/2Bn2P1/b3n2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Ke6 c4 Ke5 b4 f5 c5 d5 c6 h5 c7 a5 b6 a4 b7 f3 b5 Kf4 e5 h3 b6 d3 Kc3+ d2 e6 f2 e7 h4 e8B a3 Be2 f1N B2h5 a2 Bg4 d4+ Kc4 d3 Nc3 h2 Nd5+ Kg3 Qe2 d1N Bh3 d2 Qd3+ Nde3+ Kc3 d1B Qb1 f4 Nf6 f3 Ng4 f2 Qb2 Bb3 Bh5 Nf6 Rb1 a1B Bd2 Be7 Nh6 Bc4 Be2 Nc2 Be3 Qg8 Re1 Nh7 Bf5 h3 Ng4 Nc6 b8Q B8a6 b7 Bh4 Nf3 Nd8 Nd4 Nd2 Ne6 f1N Ng7 Nb3 Ne8 Nfd2 Bfd3 Ra7 Qa8 Bab5 c8B Ra3 b8R Nb7 Be4 Bd3 Bf1 Bbc4 Re2 Ne1 Kb4 Qd5 Bd7 Qg8 Nd6 Qc8 Ne8 Rg8 Qd4 Rg5 Qb6 Rc5 Bef5 N7a5 Qe4 Nb7 Rg1 h1Q Ra8 h2 Ra5 Rc6 Re5 Rc5 Ba4 N3a5 Bc2 Nab3 Bd7 Bb2 Rf2 Bd4 Rf7 Ba1 Nc7 Qg8 Rfe7 Qc8 Be2 Qg8 Rf1 Qg1 Ne8 h1Q Qa6 Qf2 Qb6 Qh3 Rh1 Qf4 Bed1 Qh6 Bb5 Nc1 Bca4 Ncb3 Bc2 Qd6 Bd7 Qc7 Bab5 Qc8 Nf2 Qhe6 Ng4 Qh6
N5Bb/1q6/bR2R1QN/1qq1n2r/2n1r1R1/QRbbk2r/1bP3r1/BQK5 w - - 0 1 illegal: No possible last move
r1bBk3/7q/2K5/q1QNn1B1/QN5r/bB1RB1b1/2PRnrqr/1r4Rq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 h5 Kf3 d5 e4 f5 g4 a5 b4 d3 e5 h3 g5 h2 e6 h4 b6 h3 b7 a4 e7 d4 b5 d2 g6 d3 g7 a3 b6 a2 Bg2 Kd7 e8R Nh6 g8Q Nf7 Qg5 Nc6 b8B Nd4+ Kf2 f3 Ke3 f4+ Ke4 f2 Kd5 f1R b7 f3 Re2 f2 Ba7 Qa5+ Bc5 Bd6 b8B Bg3 Nf3 Rh5 Ne5+ Ke8 Qe1 d1R Bc7 d2 Nc3 Rh7 Rb1 a1B Rg1 Bb2 Bd8 Rh6 Re3 h1R Rd3 h2 Qe4 Rde1 Qge3 Ba3 Nc6+ Ne5 Bh3 Re2 Be6 Rd1 Q4f4 f1Q Kd6 Rh7 Bb3 Rde1 Rg2 d1Q Nd5 Qdd2 Qg4 Qf7 Ra1 Rh4 Qg1 Ndf3 Qa4 Qh7 Qf2 Nd4 Ncb4+ Bd7 Bcb6 Rhf1 Bg5 h1Q Bbd8 Rd1 Rg1 Rde1 Qe3 Reh2 Qf2 Qe2 Bcd2 Qee4 Rd1 Ne2 Qc5 Rff2 Bde3 Qeg2 R1d2 Rd1 Nc6 Bc8 Ncb4+ Nd7+ Kc6 Rc1 Ba2 Rb1 Bb3 Ne5+
1RbB1K1r/1N5b/1R1NrQ2/2rR4/1Nn4q/n3qN2/bQPn4/bBb1rk2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 a5 b4 f5+ Kf3 Ke5 e4 d5 g5 h3 b6 h2 b7 d3 g6 Kd4 e5 h4 g7 h3 b5 d2 e6 a4 e7 a3 e8Q a2 b6 Nc6 b8N Ra6 b7 Na5 Qde1 d1R Q8e2 Ba3 Nd7 Nh6 b8R Re6 g8N Nf7 Nb6 Nc4 Na8 Nfd6 Rb6 Nb5 Nc3 Qg5 Qh4 Re1 Bd2 Bc1 Na4 Nba3 Rab1 a1B Qh6 Qe7 Kf2 f3 Kg3 f4+ Kg4 f2 Kh5 f3 Ba5 Qa7 Bg2 f1B Nc7 f2 Ne8 Qe7 Be4 Bg2 Qg4 f1N Nc5 Nfd2 Nb7 Qc5 Kg5 Ke3 Ngf6 Kf2 Kg6 d4 Kf7 d3 Nd5 Kf1 Nb4 Qe3 Bd5 Be4 Qg3 Bh7 Qe5 Bg8+ Kf8 Ne4 Qh4 d2 Qh6 d1R Qb2 Rd3 Qg6 Ned2 Ned6 Rd4 Qh6 Rf4+ Qhf6 Rf5 Bf3 Rc5 Bh5+ Kg2 Nf3 Kf2 Rg1 h1B Bf7 h2 Rg5 Kf1 Rd5 Bg2 Rc6 h1Q Bd8 Qh2 Rb6 Qh4 Be8 Ne4 Ba4 Bh3 Bb3 Ned2 Ba2 Bf5 Qbc3 Bg6 Rb3 Bh5 Bb1 Be8 Qb2 Bb5 Nc6 Ba4 R3b5 Bb3 Nb4 Ba2 Ra5 Rb5 Ra8 Rc5 Rb8 Bh7+
1nk2N1n/2BqB1B1/bRqn1Q1R/bN1K1b2/2nN4/r2B4/Pb3n1q/Q1r5 w - - 0 1 illegal: No possible last move, all moves rejected
N1q4R/1B1bQ1bN/1b1K3k/2Nn4/r1bB4/1R1P4/rQqq1N2/q1brnQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 Kf7 g4 Kg7 b4 h5 e4 a5 e5 c5 e6 a4 g5 a3 g6 a2 b6 c3 b7 c4 e7 c2 e8N+ Kh6 b5 h3 b6 c3 g7 h4 Bd3 h2 Na3 h3 Qe1 Ne7 g8Q Ra4 Ba6 Nd7 b8N Ne5+ Ke2 f3+ Ke3 f2 b7 f1Q Qd5 Qd3+ Kf2 f4 Qf1 f3 Kg3 Bd7 Qe4 f2+ Kf4 Qc8 Nb5 Nf3 Nf6 Bg7 Nh7 Ne1 Rb1 a1B Bb2 c1Q Nc7 c2 Na8 Qdc3 Qb4 Nd5+ Ke4 Q3c5 Bd4 Bc3 Qa3 Ba5 Rb3 Bb6 d3 Qd2 Qb4 c1B Qa3 Qcc2 Qe7 Bf8 Ke5 Bg7+ Kd6 Rf8 Qfe2 f1R Qd1 R8f2 Qde2 Bb5 Nd7 Bc4 b8Q Rg2 Nc5 Rgf2 Nf3 Rg1 Ne5 Rgf1 Rg1 h1Q Bb7 h2 Rg5 Rg2 Rf5 Qg1 Rf8 h1B Rh8 Rh2 Qd1 Bg2 Qe2 Bh3 Qg2 Bd7 Ng4+ Kg6 Nf2+ Kh6 Qh1 Nf3 Ba1 Ba5 Bd4 Qe1 Nb6 Qb2 Ra3 Bg5 Na8 Qbc3 Nh3 Ra2 Ba6 Qc2 Qb5 Bb6 Bb7 Qge3 Qb2 Qa1 Qg1 Rd1 Rb3 Ne1 Qf1 Qee2 Nf2 Bc1 Rg8 Qe3 Rh8 Qed2
bkn1b1R1/2NB2R1/1B1r3B/4Qr2/4bb2/NP1qNnb1/2Q2B1r/K2rq1n1 w - - 0 1 illegal: No possible last move, all moves rejected
2Rqn1K1/4Q1B1/qNq2q2/2Q1Q1bb/BrbN2b1/P3R1Q1/3rb3/nk2B1n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 g4 b5 a3 f5 g5 h5 g6 h3 g7 h4 d6 f3 d7 f2 Ke6 h2 Kf7 h3 d5 f4 d6 f3 Bg5 b3 Bd2 b2 Bc3 b4 Qd3+ Kb3 e4 c4 e5 Na6 e6 Nc5 e7 Rb8 e8Q Nf6 g8Q Bh6 Qde3 Kc2 Be5 b3 Nd2 b1B Qg3 b2 Qe7 c3 Ba6 f1Q Nb3 f2 Bb5 Ne8 Qg8 Ba2 Qgg3 b1B Qe6 Bg5 Ba6 Rb4 Na5 Nb3 Bb7 Qa6 Nf3 f1B Bc6 Be2 Re1 h1Q Bg7 h2 Nc4 Qf1 Ba4 h1Q Qc5 Rh2 Nb6 Kb2 Qee5 Bg6+ Kg8 Bh5 Nd4 c2 Rad1 c1N Rd3 Kb1 Re3 Qff6 Rc3 Bd1 Ree3 Rd2 Rc2 Bde2 Rcc3 Qde7 d8B Bcg4 d7 Qhc6 Bc7 Qed6 d8Q Na1+ Rc4 Qdd7 Qde7 Qd8 Qh2 Bef3 Qef4 Qcb7 Qc6 Qba8 Qf5+ Nc2 Bg3 Ne2 Qfe5 Ng1 Be1 Na1 Qhg3 Be2 Qcd5 Bb3 Rc8 Qac6 Qc4 Bbd1 Qcc5 Bb3+ Kh8 Bbc4 Kh7 Bb5 Kg8 Bbc4+
Bbnq2b1/N6N/RbbQ1nr1/R2N1k1P/1rr3n1/q3R1R1/3bQ3/2BKn3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 g5 h4 f5 h5 a5 c5 d5 b6 f3 b5 g3 b7 f2+ Kd2 d3 b6 d4 e5 g4 c6 f4 c7 a4 Ra2 g2 Ra3 g3 Ne2 g1R Rb3 f3 Qc2 g2 Bb2 a3 Bc3 a2 Bb4 a1B Nbc3 Bd7 c8Q Bd6 Nc1 Nf6 Ne4 Ra4 Q8c4+ Kf5 e6 Bc3+ Kd1 d2 e7 Nc6 e8N Na7 b8R Nc8 b7 Bc6 Ba3 Rb4 Ra8 Bb8 Na2 Rh7 Qe2 Rc7 Qc1 Qd6 Kc2 d1N Rh3 Bd2 Re3 Nb2 Nac3 Nd3 Nd5 Ne1+ Kd1 d3 Nec3 Qc5 Qa1 Qa7 Bb2 Qa3 Rg3 Ra4 Nb4 Bd7 Ng7+ Kf4 Re7 Ba7 b8R Rc4 Nc6 Bc1 Ne6+ Kf5 Rg6 d2 Rb6 Rab4 Nf8 Bb8 Nh7 Be6 Rgg7 Bg8 Raa7 Nd3 Kc2 d1Q+ Kb1 Qd2 Re3 Ne1 Ra4 Qd8 Na7 Be5 Rba6 Bb8 Rd3 Be3 Re7 Bb6 Kc1 Be3+ Kd1 Bc1 Qe3 Bd2 Be2 f1B Bc1 f2 Bf3 Rc5 Ba8 Rcc4 Rdd7 Bd3 Qe2 Be4 Rd3 f1N R4a5+ Bed5 Rh3 Nh2 Ree6 Ne8 Ree3 Nf6 Ncb5 Bc6 Qd4 Rh1 Qd6 g1B Re6 Bd4 Ree3 Rg1 Nc7+ Bc5 Nd5 Rg6 Rhg3 Nhg4 Re7 Bd4 Ree3 Bb6
1Q2Nrk1/1b2B2q/3r4/rPnbb1r1/1K6/B1q1Nq1r/bN1RB3/1R1N1nQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 a5 c4 h5 c5 f3 e5 f4 g5 a4 b6 f2 c6 f3 b5 a3 c7 d3 Kc3 d4+ Kb3 a2 b7 h3 Ne2 h2 Na3 d2 Rg1 h1B Rg3 h4 Qc2 d1B Kc4 h3 Qb2 d3 Ng1 h2 Nc2 d2 Qc3 Ra5 Rg2 Na6 b8B Nc5 Ne3 Bg7 Ng4 Bb3+ Kb4 d1R Qe3 Qf8 Nh3 Rd6 Rb1 a1Q Be2 f1R Ba3 Bb7 c8N f2 Nb6 Ne7 g6+ Kg8 e6 Nf5 e7 Rg1 e8N f1R Nhf2 Be5 g7 Ng3 Nc4 Ba2 Nb2 Rh3 Nfd1 Qf3 Qc1 Rf2 Nge3 Nf1 Bc7 Bbd5 Bd8 Bb7 Be7 Bbd5 Rg6 Rg5 Rh6 Bg2 Rh4 h1Q Rd4 Qh5 Rd2 Qh7 Nc7 Rf8 Ne8 Ne4 Qc7 Nc5 Qb6 Bge4 Qb8 Qf3 Qb7 Rg1 Qc7 Bb7 Nd3 Bed5 Qc8 Kf7 Qb8 Kg6 g8Q+ Kh6 Qg3 Rg2 Qh2 Rg5 Qg2 Kg6 Qg1 Kf7 Rbb2 Qc1 Rb1 Kg8 N3b2 Qc3+
qb2RBQR/2n5/r3NQQ1/P1Rqb1bq/1k2q1BQ/7K/1qb3n1/4rnN1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 d4 c5 a4 b5 h4 g5 e4 f5 a5 c4 h5 g3 h6 b3 h7 f3+ Kh3 f2 Be2 f1N Qc2 b4 Qd2 b2 Qd1 c3 Qd3 g4+ Kg2 f4 Qf3 b3 Bc4 c2 Nh3 Bg7 Qe2 f3+ Kg1 g2 Qd1 Be5 Nf2 Na6 Nd3 Nf6 Nc3 b1Q Ne2 b2 Nc5 Nc7 Ne6 Ra6 Qd3 Nh5 Bh6 Re8 h8Q c1B Qg8 Bg5 Bf8+ Re7 Ra4 Nf4 Rh8 Qd1 Kf2 b1Q Ng1 Qb2+ Qc2 Qe8 Be2 Qh5 Rc4 Bd7 Rc5 Ba4 Qd3 Qdb3 Qb1 Qb8 Qd3 Qa8 Qb1 Bc2 Bd1 Nd2 Kg3 f2 Be2 f1Q Bf3 Kd7 d6 Qc4 Be2 Qcd5 Bf3 Kc8 d7+ Kb7 d8Q Re8 Qf6 Re7 Rb5+ Kc6 Rc5+ Kd6 Nh3 g1B Bd1 Be3 Ng1 Ng6+ Kg2 g3 Bg4 Nh4+ Kh3 g2 Bf5 Ba4 Bg4 Nf1 Qd3 B3f4 Qg3 Qda2 d5 Bc2 Qd3 Kd7 d6 Q2d5 Qfg6 Bg3 Qf3 Bh2 Qff6 Re8 Rb5 Kc6 d7 Re7 d8Q Re8 Nf3 g1Q Qde7 Qb6 Ng1 Q6d4 Qb4 Bhf4 Qe1 Ng2+ Qh4 Bd6 e5 Q4e4 Ng7 Bh2 e6 Bhg3 e7 Be5 Rb7 Kc5 Rb5+ Kc4 Rc5+ Kb4 Ne6 Nb5 Bh6 Bb8 Bg7 Nc7 Bf8 Rd8 e8R Rd7 Qh6 Rf7 Qfg6 Rf2 Qhg7 Re2 Q7f6 Re1
q5r1/4Nn1b/Q3b1q1/P1Bb1q2/B1nR1BQB/1q1r2r1/1kbRQ3/3KN1b1 w - - 0 1 illegal: No possible last move, all moves rejected
K2rbkn1/2Q3nq/1N1rn2P/1NqB4/3B3b/Bn2R1b1/3B1bRQ/q1b1Q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 a5 c4 g3 h4 g2 c5 g4 h5 a4 c6 f3 b6 a3 h6 f2 b5 a2 e5 g3 b7 f4 b6 f3 c7 Qd7 e6 Bd6 e7 Ra6 Rh3 Nc6 b8B Rh7 b7 Nd8 Na3 Ne6 Ne2 g1B Bg2 f1Q Rh4 f2 Bf3 g2 Qa4 Bg3 Re4 Rd6 Bg5 Qc1 Qc4 f1N Bf6 Be3 Bg7 g1B Nc3 Nd2 Ncb5 Nb3 Qc2 B1f2 Nc4 Qg1 Rc1 a1B Nb6 Bg5 Bh8 Bb2 Re3 B5h4 Ra1 Rf7 Ra2 Bc1 Ba7 Rg7 b8B Bb7 Rb2 Bc6 c8Q+ Kf7 Qd8 Qb7 Be4 Be8 Qdc7 Rh7 Be5 Rg7 Bf4 Rh7 Ke2 d3+ Kf3 d4 Bd5 d2 Ke4 d1N Qe2 d3 Rd2 Be1 Qh2 Bef2 Rde2 d2 Ke5 Be1 Rg2 Bef2 Ke4 Nc3+ Ke5 Ne2 Ke4 d1Q Bg5 Bc6 Bf4 Ned4 e8Q+ Kf6 Qee7+ Kg6 Bg5 Ng7 Qe5 Nde6 Qc3 Rd7 Qe1 Kf7 Be7 Ke8 Bb4 Rd6 Ba3 Nf4 Ke5 Kf8 Ke4 Nd2+ Kd4 Be8 Kc5 Nfe6+ Kb4 Qc2 Ka5 Qbc6 Ka6 Q6c5 Kb7 Nb3 Ka8 Qb1 Nc8 Qa1 Bb6 Qc2 Bd4 Qc5 Ba7 Qf1 Bc3 Qd3 Bd2 Nh5 Nb6 Qcc3 Kb8 Rd7 Ka8 Nhg7 Na4 Qh7 Bd4 Qc5 Nb6 Rd8+
NN1Q1R2/1nbbqb2/N3r1P1/1r1nnqqB/2kB4/3n2Q1/5bnK/N2R1Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 h5 g4 a5 Kg2 f5 c4 f3+ Kh3 a4 g5 f2 g6 d3 b6 d2 b5 Kc5 b7 d5 e5 a3 b6 d4 e6 d3 e7 f4+ Kg2 h3+ Kh2 h4 e8Q f3 Bb2 a2 Qc1 d1B Qe6 d2 Qc3 Ra5 Qd3 Na6 b8N Rb5 b7 Qe7 Nc3 Bb3 Qee4 d1Q Qd7 Nf6 Rc1 a1B Qee6 Nd5 Rb1 Qc1 Qf5 Qcg5 Qe8 Bd7 Bg2 f1Q Qe5 f2 Na4+ Kb4 c5 Kc4 c6 Nc5 Bc1 Bd4 c7 Bg7 Qg3 Bge5 c8N Bc7 Qd8 Re8 Be3 Qd3 Rf1 Qdf5 Nf3 Ba2 Rd1 f1N+ Kg1 Bb3 Ne1 Ba2 Bf3 h2+ Kg2 Bb3 Rg1 h1N Nc2 Nf2 Bh5 Nfd3 Na1 h3+ Kh1 h2 Ncb6+ Kb4 Kg2 h1N Na8 Ne5 Bf2 Nfe3+ Kh2 Kc4 Rgf1 Ng2 Qf4 Ncd3 Nc5 Ng3 Nca6 Ne4 Qf3 Bc5 Bd4 Nd6 Qe2 Ba2 Rf3 Ba7 Qf1 Bab6 Bb2 Bf2 Bd4 Qfe6 Rf8 Qef5 Nc6 Bb3 b8Q Nb7 Qa7 Qa3 Ncb8 Re6 Qb6 Qae7 Qa5 Be8 Qae1 Ba4 Qe3 Bf7 Qf3 Rb2 Qg4 Bd7 Qg3 Rb5
QK1b1Qb1/4B3/3RrPN1/N1q1r3/1r1Q1b1q/b1R1q1qR/n4kb1/RB2n3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe3 Kg4 f5 e1R f6 h3 Qf2 a2 Be3 e4+ Kc2 d3+ Kb3 d2 Ba6 d1Q+ Kc3 d4+ Kc4 d3 Kb5 d2 Qg2 Qe7 Nc3 Qc2 Bd4 d1Q Nd5 e3 Qd2 e2 Rc1 a1B Bc3 Nc6 b8R Qe3 b7 Rh4 Ba5 Be6 c8R Nge7 Nf3 Ng6 Ne7 Be5 Bd8 Bf4 Nd4 Nge5 Kb6 Nf3 Ng6 Nb4 Be7 Bg8 Bd3 Na2 Ra1 Ra5 Rc3 Re5 Kc7 Qdb1 Ra8 Qbb3 b8Q Qc1 Ra3 Qcc2 Rf1 h1B Nc6 h2 Qa8 Bg2 Na5 h1Q Rg1 Kh3 g4 Kg3 g5 Kf2 Rd1 Qc1 Bb1 Rg4 Qd4 Qh4 Rh1 Qcc2 Rh3 Qc1 Rc6 Qc5 Rc1 Qd3 Rcc3 Re6+ Bd6 Be7 Kb8 Bd8 Ra6 Rd1 Rc6 e1B Rb6 Re5 Be7 Bd2 Rd6 Ne1 Ra4 Bc1 Raa3 Nb4 Ra1 Ba3 Nf8 Rd2 g6 Na2 g7 Re2 Ng6 Re6 Qb4 Qeg3 Qbe4 Qde3 Qd4 Bf7 g8Q Re5 Qf8 Bg8 Rd5 Re6+ Rd6 Bg5 Qd1 Qef3 Qd3 R2e5 Qdd5 Qfe3 Qc4 Rd4 Qd3 Bf4 Qd1 Ra4 Qd4 Rb4+
n3RBk1/n2B2NN/2Q2P2/1rR1n1B1/q5r1/rnqn4/1N2BK1b/2b1bbQ1 w - - 0 1 illegal: No possible last move
K1R5/1Q3B2/nPNr1nq1/n2b1kB1/Br6/rQ2rN1n/Rq1b1b1Q/B1r5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 Kd5 h5 c4 a4 e4 d3 b4 f3 g4 a3 b6 d2 c5 a2 b7 f2 c6 h3 b5 h2 c7 h4 b6 h3 Qb3 d1R+ Bd2 Rc1 Bf4 Bb4 Qc4 Na6 b8B Qe8 Be2 f1N Qc5 Bb7+ Kd6 Rh4 c8Q Nd2 Qc6 Nb3 Bg3 Bd2 Na3 Na5 g5+ Kg6 e5 f5 e6 f4 e7 f3 Bc7 f2 Bd1 f1R Bd8 Re1 Qf2 Nf6 Be5 Rb4 Nf3 Re3 Nc2 Kf5 g6 Ra7 g7 Qg6 Rg1 h1N g8Q h2 e8B Ra8 Qc8 Bd5 Qb7 Ra7 Qg2 Nf2 Bf7 h1Q Qh2 Qhg2 Re1 Nh3 Ncd4+ Ke4 Nc6 Kf5 Ba4 Qe2 Rb1 a1B Rb2 Qeg2 Rc2 Bd4 Ra2 Bb3 Bc7 Rd3 Qh1 Bh6 Bg3 Nc5 Bb5 Qc2 Re8 Bf2+ Bd5 Nc4+ Ke7 d6 Kd8 Ra3 Kc8 Na6 Qh2 Na5 Bh4 Qb1 Bdc4 d5 Be5 d4 Ba4 Rdc3 Rf8 d3 Bd5 Bhe3 Bg5 d2 Rd8 Rd3 Ba1 d1R Qgf7 Qb2 Rh8 Nc7 Kb8 Na6+ Ka8 Re1 Rd8 Bd2 Rc8 Ree3 Bc4 Rd6 Qd5+ Re5 Qd3+ Re4 Bf7 Bd5 Qb3 Re3
5BQQ/1B1K1bb1/P3q2q/1RQb4/r1N4B/Q3bk1r/brnn3r/N1n1R3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 b5 a4 h5 g4 c5 d4 f5+ Kd3 f3 e4 b3 g5 b4 Kc4 h3 Kb5 b2 g6 b3 a5 f4 g7 h2 Ne2 c4 Nd2 b1R Rg1 h1B Ra4 c3 Ra1 h4 Ng3 b2 Qb3 f2 Ne2 h3 Ng3 c2 Be2 f1Q Qa4 h2 Nb3 f3 Bh6 Nc6 Qa3+ Nb4 Rg2 Ne7 g8Q Qd1 Nf1 c1B Ne3 f2 Rg5 f1N Bf3 Qd7+ Kb6 Nc6 e5+ Ke7 e6 Kf6 d6 Bg7 e7 Qe6 Kc7 Nd2 e8Q Ne5 d7 Ned3 d5 Nc2 Be4 Qh5 d6 Qhh3 Bc6 Bd5 Qh5 h1R Nc4 Rh2 Bb7 Qhe3 Re5 Qg5 Re1 Kf5 d8B Kf4 d7 Kg3 Be7 Qgf6 Qg5+ Kf3 d8Q Bd7 Ra2 Be8 Na1 Bf7 Qg1 Ra6 Qgc5 Ra7 Bg5 R8h3 Bh4 Qh6 Bd6 Ne4 Qh8 Be3 Qdg8 Nc1 Bf8 Nd2 Kd8 Ra6 Kc7 Rb6 a6 Rb4 Nb3 Ra1 Kd8 b1B Rb2 Ra2 Na1 Ra4 Rb5 Rb2 Kc7 Ba2 Kd8 Qe4 Kd7 Qee6+
1qBBRq2/n3P1Rr/1N2br1n/1k2q1qR/4Rb1n/4nN2/1KbN1Q2/n3Q3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 a5 c4 f5 Kc2 h5 g4 d3+ Kb2 h3 b6 Kc6 b7 f3 e5 f2 g5 d4 e6 d2 c5 h2 g6 f4 e7 d3 g7 f3 Na3 h4 Qb3 d1Q Nh3 d2 Nc4 a4 Ng5 h3 Nd6 a3+ Ka2 Nh6 g8Q Qe2 Qd1 Ra6 Qe1 d1B+ Bd2 Rh7 Nde4 Bc2 Qf7 Kb5 c6 Qc7 Rg1 h1N Rd1 h2 Bh3 Qa5 c7 Nc6 b8R+ Qb6 Ka1 a2 Kb2 Be6 Re8 f1Q c8N f2 Nf3 a1N Rg7 Qb8 Nb6 Na7 Bf4 Qg1 Bc7 f1N Ned2 Ne3 Bd8 Ng3 Rc1 h1Q Bf5 Ba2 Bc8 Be6 Qf6 Qhg2 Qh4 Ngf5 Qhf2 Q1f1 Rb1 Kc6 b5+ Kc5 Rd1 Nh4 Rc1 Qg5 Rd1 Bcf5 Rc1+ Kb4 Rc5 Bb1 Re5 Bc2 Re4+ Kc5 Nd5 Rc6 b6 Kb5 b7 Rd6 Nb6 Rc6 Rg6 Bg7+ Kc1 Bd4 Rg7 Be5 Rh8 Bf4 Kb2 Beb3 Re8 Rf6 Rh8 Be6 Re8 Qc7 b8R Qd6 Rb7 Qb8 Rd7 Qd3 Rc7 Qd6 Rd7 Qdc7 Rd5+ Qc5 Rf5 Qce5+ Kc1 Rf8 Nh2 Qgg1 Qf3 Bg3 Rh5 Qff2 Qg2 Qff5 Qf2 Bf4 Nhf3 Qgg5 Nh2 Qf7 Nhf3 Qg8 Ra4 Rf6 Re4 Qc5 Kb2 Qf8 Rg6 Qcf5 Rg7 Qfe5+
Q4B2/rRPR2KB/3q1q1Q/2k2r1B/nN1nRB2/qn6/br3bnn/4N1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 a5 e4 h5 g4 h3 b4 f3 c4 h2 g5 a4 g6 h4 g7 h3 b6 f4 b7 a3 b5 a2 b6 f2 e5+ Kc5 Ke4 d5+ Kf3 d3 e6 d2 Kg4 f3 Kf5 d4 Kg6 d3 e7 Be6 e8R Nh6 g8B Qf6+ Kh5 Ra7 Qc2 d1Q Re7 d2 Be2 f1N Qg6 f2 Nf3 Ng4+ Qh6 Nge3 Nc3 Nc6 b8B Nd4 b7 Ng2 Rb1 a1N Rd7 Nab3 Ne1 Bg7 Rg1 h1Q Bf4 h2 Bh7 Rb8 Na2 Bh8 Bb2 Qc1 Ba1 d1N Nb4 Nc3 Bb2 Na4 Ba3 Bg8 Bf3 Qd6 Bd1 Bf6 Kg6 Bh4+ Kg7 Rf8 b8Q Rf5 Qa8 Be6 Bb2 Bf7 Bc3 Qa3 Bh5 Na5 Nec2 Re5 Bf5 Ne2 Bg5 Ngf4 Kh7 Kb6 Rg4 Qg1 c5+ Kb5 c6 Ba2 c7 Kc5 Be7 Nd4 Nc6 Rd5 Rb7 Nab3 Kg7 Re5 Ba5 Re2 Ne1 Rb2 Rg6 Qg5 Bd3 h1Q Bd2 Nh2 Nb4 f1R Bf8 Ng2 Bc2 Qf4 Rg4 Qg1 Bh7 Rf3 Be3 Bf2 Bc1 Qf5 Re4 Qe6 Bd2 Rf5 Bf4 Qf6+
kn4r1/2P1Qb1Q/B1Rr1bRn/1qb2nB1/N2nB3/N3q3/1R6/b3rbKB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 b5 h4 d5 e4 Kd7 c4 Kc6 a4 Kb7 e6 f5 a5 g5 e5 g3+ Kg2 b3 c5 f4 e7 b4 e8R b2 h5 b3 h6 g4 e6 d3 h7 d4 e7 d2 Nh3 d3 Qe1 d1N Na3 b1Q Qb4+ Qb6 Qa4 f3+ Kg1 f2+ Kg2 d2 Ng5 b2 Rh4 Bg7 Qf4 Nc3 Qd6 d1N Rh2 Nh6 Kh1 Ra6 c6+ Ka8 c7 Ne3 Ne6 Bf6 Nc5 Nb5 Rg8 Be6 e8B Nd4 Bg6 Bf7 Na4 Nef5 Bg5 Qe4+ Rg2 b1R Qe7 Re1 Rc1 Qb5 Rc6 Qe3 Rg7 Rf8 h8Q Rg8 Qh7 Rb6 Rh2 Ra6 Kg2 Rb6 Bc4 f1B+ Kh1 Ra6 Rb2 g2+ Kh2 Rb6 a6 g1B+ Kh1 g3 a7 Bf2 Be2 g2+ Kh2 Nd6 Be4 Nd6f5 Rg6 g1B+ Kh1 Bg3 Bc4 Bd6 Bcd3 Bc5 Be2 Kb7 a8B+ Ka7 Bb7 Bh2 B2f3 Bhe5 Ba6 Ka8 Rf2 Ne6 Kg1 Ba1 Bh1 Ned4 Bd3 Qe4 Rb2 Qf3 Re6 Rd6 Be4+ Rd5 Rc6 Rd6 Nb1 Qfd3 Na3 Qe3+
3q3b/n1P1r2B/K3n2n/2Nn4/N3RRNR/Q1r1qqk1/1B3nbN/b2Q3q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 a5 b4 h5 e4 d5+ Kd3 f5 c4 a4 b6 f3 c5 f2 c6 a3 b5 a2 c7 h3 b7 h2 g5 h4 g6 h3 g7 f4 b6 f3 Na3 Nd7 b8N Nh6 g8Q Nc5+ Kc2 d3+ Kc3 d4+ Kb4 d2 Kb5 Kf4 e5 d3 e6 Bg7 e7 Bb7 e8N Rh7 Qc2 Bh8 Nd7 Ne6 Qg6 Re7 Qe4+ Kg3 Nb1 d1N Nc3 d2 Qb4 Ne3 Na4 d1N Bd3 f1Q Ndc5 f2 Bb2 Bg2 b7 Qe1 b8R f1Q Qa3 Qf3 Bh7 Nd5 Nf6 Qee3 Ng4 Ra6 Rc1 a1B Qe2 Rc6 Rc4 N1c3+ Ka5 Rg7 Rf4 Re7 Rbb4 Nb5 Qd1 Na7 Rbd4 Nc8 Rde4 Na7 Nd7 Rc3 Ndc5 Qf1 Nf3 Qff2 Rg1 h1N Nfh2 Qff3 Re1 Nf2 Rb4 Qd2 Ree4 Qde3 Ka6 Kh4 Nf1 h2 Rbd4 h1Q Nfh2 Nb6 Rd5 Kh3 Rh5+ Kg3 Rh4 Nd5
rbRKN1N1/NPBnQrQq/4RR2/7n/b3bn2/3n3b/4B1rb/Nqk5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 Kc2 c5 d2 c6 d1Q c7 f2 Be2 f1R Rh2 f3 Qg3 f2 Nc3 a2 Bh5 d3 Rb1 a1B Nf3 d2 Qg1 Qe7+ Kd5 Nd7 Kc6 Ngf6 b8Q Rg8 b7 Nd5 e5 Nf4 Rh1 h2 e6 h3 Nb5 Be5 Na7 Qe1 Qg4 d1B Rb6 Qh4 Ba3 Bfd6 e7 Qb4 e8N Qb1 Bb4 Kc1 Ba5 Bb3 Rg1 h1N Nd4 h2 Nc2 Ng3 Qe2 h1N Na1 Qh2 Bf3 Ngh5 Rg6 Qh4 Re6 Ba4+ Qb5 Qh3 Be2 Qhf5 Rf6 Qh7 Ra6 Rd1 Bb6 f1B Re6 Rf8 g8N Nf2 Rf6 N2d3 Re6 Bc2 Qc5 Rd2 Qg1 Rf7 Qg7 Bh3 Ba5 N7c5 Rf6 Bce6 c8R Nd7 Qc7 Bef5 Qd8 Bd1 Qe7 Bb8 Bc7 Bb3 Kb5 Be4 Rae6 Nd5 Kc6 Bh2 Bf3 Rg2 Bg4 Nf8 Be2 Nd5f4+ Kd6 N8g6 Kd7 Nf8+ Kd8 Nd7 Nb5 Bc2 Na7 Ba4
QN2qQbq/3n1n2/2r1QB2/1q2n2n/1rBb3b/2r1kB1P/1B1R3R/2b1K2N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 b4 Ke6 c4 Ke5 b6 g5 c5 a5 b5 f5 b7 d5 c6 g3 h3 a4 c7 g2 b6 g4 Nc3 f3 Nge2 g1B Na2 g3 Qd3 f2+ Kd1 a3 Bh6 g2 Qa6 d3 Rc1 f4 Ng3 Kd4 e5 f3 e6 d2 e7 Be6 e8B Nd7 b8Q Be7 c8Q Bh4 Bf4 Nh6 b7 Bg8 Qac6 Nf7 Nb4 a2 Bh6 a1B Qg6 Bb2 Bf4 Rh6 Qcc2 Ra3 Qa4 Rc3 Qh5 Rhc6 Ba6 f1N Qa2 f2 Rc2 Bc1 Ke2 d1R Bc4 Qf6 Bh6 Qh8 Qba8 Rdd3 b8B Re3+ Kd1 Re4 Bg7+ Ke3 Rb2 d4 Bf6 d3 Na6 d2 Rh2 Rf4 Nh1 Ng3 Qh6 Nh5 Qg7 Rd4 Bg3 f1Q+ Be1 Bgf2 Nb8 g1N Qf8 Nf3 Q2a6 N3e5 Qc8 Nb6 Qe6 Bg1 Bd7 Rg4 Bc8 Nd7 Bb7 Qf5 Ra2 Qb1 Bg3 Qb5 Bf2+ Kf4 Bc5 Bd4 Ba3 Ke3 Bb2 Ba7 Bd5 Rb4 Bb3 Bd4 Bc4 Rc5 Bf3 Rc6 Bg4 Kf4 Ke2 Ke4 Kf1 Ke3 Bf3 d1Q+ Kg2 Qda4 Kf1 Qaa5 Rd2 Qd8 Rh2 Ng3+ Ke1 Qe7 Ba3 Qd8 Rad2 Qe8 Bb2 Nh5+
r3q2n/2NQ4/5knq/N1Bn4/K1B2b1q/2bQ1b1P/RNr3RN/1rr2nQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 f5 Kc2 d5 Kb3 g5 e4 a5 c5 d3 c6 d2 b6 g3 b7 d4 e5 g2 c7 d3 e6 a4+ Kb4 f3 h3 g4 b3 f4 Qe1 d1N Qe4 f2 Qh7+ Kf6+ e7 a3 Nc3 g3 Nb5 d2 Nf3 g1R Qd3 a2 Qb1 g2 Ba3 Bg4 c8Q Qe8 Nc7 Ne3 Qc2 d1R Ne5 f3 Nd3 Nd7 b8Q Nh6 Nb2 Rb1 Qa7 Nf7 Ka4 Bh6 b4 Nde5+ b5 Ng6 Bc5 Nd5 Rh2 Bf4 Bc4 f1Q Qd7 f2 b6 Qc1 b7 f1N b8N Bf3 Qd3 Rh4 Nc6 Nfh8 Na5 Rh1 Qb7 g1Q Rg2 Qf2 Qb4 Rh5 Qe1 Qh4 Qee3 Re5 Qg1 Re2 Kb3 Rc2 Ka4 Qf7 e8N+ Ke5 Nf6 Qe8 Ne4 Qe3 Nf2 Kf6 Kb5 Q3e6 Ka4 Qd6 Kb3 Qdf8 Ka4 Qfh6 Ng4+ Kg5 Nh2+ Kf6 Nd1 Rbc1 Rb1 a1B Rb2 Rb1 Ra2 Bc3 Nb2 Nd2 Qf2 Rhc1 Qg1 Nf1
2R1N3/3q1B2/5NQK/1b2n3/Prr1rqbb/4QQn1/3qnNnk/1QBrR3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 a4 b5 e4 c5 g5 h5 d6 f5 d7 h3 d3 h2 g6 h4 g7 b3 Qc2 c4 Qa2 b4 Ba3 c3 Bh3 b2 Ne2 b3 Be7 c2 Qa3 c1N Rd1 h1R Rd2 Rd1 Rc2 Nf6 g8N Nh5 Ng3 Nc6 Bf1 h3 Rh2 Ne2 Nc3 b1Q Nf6 b2 Nh1 Nhg3 Nb5 Rh4 Nc7 Ra5 Nce8 Rc5 Qb3 Rc4 Ba3 Be7 Nf2 Rg4 Rh1 h2 Bg2 Qa5 d8Q Qd2 Re1 h1Q Qdb6 Qh7 Qe3 Qbc2 Bh1 b1R Bc1 Bd8 Qa2 Rbb4 Qb1 Qd7 Ra3 Rh4 Rc3 Rg4 Nd5 Bh4 Ndf6 Rg7 Bg2 Re7 Bh3 Re6 Bg4 Re7 Bh5 Re6 Bf7 Re7 Kg2 f3+ Kh2 Re6 Kh3 f4 Kg4 Nh5 Nh3 f2 Qf3 f1N Nf2 Nhg3 Qe3 Nh1 Kh5 f3 Kh6 Re7 Bh5 Nhg3 d4+ Ke6 d5+ Ke5 d6 Re6 Nh3 f2 Bg6 Qcd3 Bf7 Re7 Rc2 Qf5 d7 Qd6 d8Q Qdd7 Qg5 Ne3 Qg6 f1B Nf2 Kf4 e5 Ng2 e6 Ne5 Rc3 Bb7 Qb8 Bf3 Qb7 Bg4 Rc2 Nh1 Qe4+ Kg3+ Qe3+ Kh2 Qh5 Rf4 Rc8 Nhg3 Qg6 Nd4 Qa3 Bb5 Qf3 Nde2 Qfd3 Qb7 Qf3 Rc7 e7 Rcc4 Nd6 Rce4 e8Q Qbd7 Qe7 Rec4 Nde8 Rce4 Qe6 Rec4 Qb6 Rfe4+ Qbe3 Qf4+
1QR3r1/brq4n/P1nbbq2/KB1N4/NRN5/1RnQB2q/4r2N/knb5 w - - 0 1 illegal: No possible last move
bq3Q2/2Pb2b1/Bk3NN1/q3r2K/1r3Rn1/4qb2/1BR1Nnnn/r1Q2N1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kh5 a5 c4 f5 g4 f3 b4 f4 e4 d3 c5 d2 g5 a4 c6 f2 g6 a3 e5 f3 g7 d4 e6 h3 e7 a2 e8Q d3 Qe3 h2 Be2 f1Q Qe1 d1B Qh4 f2 Qed4 d2 Qdf4+ Kb6 c7 Na6 Qh6+ Nf6+ Kg5 Rb8 g8N Bg7 Q6h5 Qh3 Qg6 f1N Qf7 h5 Qg4 h4 Ne7 Nc5 Ng6 Bf5 Bb2 Qe3+ Qf4 Nd3 Qf8 Nf2 Bc4 h3 Ne2 Rg8 Kh4 N6g4+ Kh5 Qd5 Bd3 Rb7 Qc4 Rb8 Qc1 Re8 Bc4 Re5 Bd3 Qa8 Bc4 Qa5 Bd3 Ka7 b6+ Kb7 Bc4 Kc6 b7 Kb6 Ng3 Be2 b8N d1N b5 Bf3 Nc3 Ba8 Rb1 a1R Nce2 Bf3 Ba3 Ba8 Rb4 Bf3 Bb2 Ba8 Rg1 h1Q Ra4 Qhe4 Rh1 Nfh2 Nf1 Qb7 Bd3 Qc8 Rf4 Qe8 Na6 Qc8 Nc5 Qb8 Ne4 Rh8+ Kg5 Rh4 Nf6 Qed2 Bc4 Nde3 Bd3 Ng2 Bc4 Kb7 b6 Qd3 Bb5 Qe3 Bc4 Kc6 b7 Kb6 Ba6 Rh8 Qf7 Rd8 Kh5 Rd4 Qe8 Rb4 Qf8 Rba4 Qc6+ Ka7 Nfg3 Nf3 Qd5 h2 Qd2 Qd8 b8R Qe8 Rb5 Rb4 Qe1 Qb8 Rc5 Kb6 Rf1 h1B Qc3 Nfh2 Qc1 Ne1 Rc2 Bhf3 Rh1 Ng2 Nf1 Bd7+
3n3R/1n2n1Rb/r2nr3/1K1R2Rn/1b1bB2N/2QBQr2/1Bq2nPk/4Nb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kg4 e4+ Kg3 c3 a5 b6 h5 b5 f5 e5 d5+ Kb3 a4+ Ka2 h3 b7 f3 b6 f4 c4 a3 Kb3 d3 c5 d4 Kc4 h4 e6 a2 c6 d2 e7 d3 e8B h2 c7 h3 Qe1+ f2 Nf3 d1N Kb5 d2 Qe7 Ra6 Qf6 Nb2 Bc6 d1N Qd6 Nd3 Be8 Nc5 Ba3 Nb2 Qd5 Rh6 Qf5 Ne7 Bh5 Qd2 Qd3 Nbc6 b8Q Bf5 c8R Nd8 b7 Nc4 Qc2 Bh7 Bb2 Rhe6 Qc3 Qc2 Bd3 f1R Nh4 Rf3 Rd1 h1N Na3 h2 Qbe5 Nf2 b8R h1N Rc7 Ncb7 Qe3 Kh2 Bhg6 Ng3 Bge4 Nh5 Rab1 a1B Ra8 Ng6 Rg7 Bb4 Rc8 Ne7 Rc5 Rh3 Rcg5 f3 Rd2 Ng4 Rg1 f2 Rc1 f1B Rcd1 Qc1 Nc2 Rf3 Ne1 Qc2 Rf2 Rg3 Rf8 Rf3 Rh8 Nf2 Be2 Ra8 Rdd5 Ncd6+ Kb6 Ra4 B2d3 Ra6+ Kc7 Rf7 Ba3 Bg6 Qcc5 Bd4 Qc3 Be5 Bb2 Rf3 Kd7 Bh7 Kc7 Ra3 Kb6 Bd4+ Rc5 Ne8+ Kb5 Raa6 Rcd5 Ned6+
2kNQR2/2N4b/P2r2rB/1B3N1r/br1n3n/2n1br2/1nrQq2Q/1K1R2Q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Kd7 g4 c5 e4 b5 d4 f5 Kd2 h5 Kc2 b3+ Kb2 c4 e5 b4 d6 f3 a5 f4 d5 f2 g5 h3 g6 h2 g7 f3 a6 h4 Qe1 h3 Qe4 Nc6 Be3 c3+ Kc1 b2+ Kc2 b3+ Kd1 c2+ Kd2 c1R Bb6 Nh6 g8N Rb8 Bd4 Rb4 Ra4 Nf5 Be3 Qe8 Bh6 Nh4 Bb5 f1R Qf4 f2 Na3 b1B Ne2 b2 Ng3 Rg1 Ne7 f1R Ngf5 Rf3 e6+ Kd8 d7 Rg6 Rg1 h1R Qh2 Nd4 Rd1 Rhf1 Qg1 h2 Nc6+ Kc7 e7 h1N Ra5 Nf2 Nd8 Nd3 d6+ Kb8 Qh2 Bb7 Qg1 Bc6 Qh2 Rfg1 Ra4 Re6 Ra5 Qh5 e8Q Rf6 Qe1 Rgg6 Qeg1 Rc5 Nc4 Re6 Nb6 Be7 Nd5 Bg5+ Nfe3 Bc2 Nc7 Be4 Raa1 Ba4 Rf1 Bf4 Rad1 Qg4 Rf2 Rh5 Kc3 Rhe8 Nf5 Be3 Nb7 Rc8 d8Q Ref6 d7 Rd6 Qe8 Qg2 Rff1 Qe2 d8Q Rge6 Ng3 Bh7 Nf5 Rg6 Qdg5 Ne5 Nd8 Nc4 Na8 Rc5 Nc7 Kc8 Qgf4 Qg2 Qg5 b1N+ Kd3 Nc3 Rf2 Nb3+ Kc2 Nb2 Qgf4 Qg4 Qd4 Qg2 Qd2 Nd4+ Kc1 Ne4+ Kb1 Rc2 Rff1 Qe2 Ng7 Rh3 Rf8 Rf3 Nf5 Nc3+
1krrN3/nn1n2n1/1R3Q2/QKR1rbBR/B1Nr4/2N1q2n/b4bP1/2b1N3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Kc4 f5 e4 d5+ Kb3 Kd7 Ka4 Kc7 b4 h3 c4 h4 e5 d3 e6 h2 e7 d2 e8Q f3 c5 f2 c6 d4 Qc2 d1N Qf7+ Nd7 b6+ Kb8 b5 h3 b7 f4 Qfh7 f3 Qcd3 Nb2+ Kb3 a4+ Kc2 a3 Kb3 a2 Qhe4 Qe7 Qg4 Nc4 Qh4 Na5+ Ka4 Qe3 Qa3 d3 Be2 f1N Qf6 f2 Bh5 d2 Qd4 d1R Bf7 Bc5 Bh5 Ng3 Nc3 f1B Qf6 Bc4 Be8 Rd4 Nf3 Ne7 Ne1 Nh5 Rb1 a1B c7+ Ka7 b8N Nb7 Rb4 Ba2 Na6 Bb2 Rc4 Ng7 Qb4 Bb6 Qa5 Nc6 Bd2 Bc5 Bc1 Rb8 b6+ Ka8 Bd2 Bc1 Kb5 Rh5 Nb1 Re5 Nc3 Qg1 Bg5 Qe3 Rf1 h1N Rf5 Bd6+ Rc5 h2 Nd3 Nf2 Ne1 Re6 Rfe5 h1R Red5 Nh3 Re5 Nbd8 b7+ Ka7 Rf5 Bg3 Rfd5 Ra8 b8R Bf2 Rb6 Nb7 Re5 Nf8 Rf5 Re5 Bd7 Rb8 Be8 Bce6 c8N+ Ka8 Nd6 Rd8 Nc7+ Kb8 Nc4 Nd7 Bf4 Rg1 Rh5 Bf5 Bg5 Rc8 Nf3 Rgd1 Ne1 Nf8 Bd7 R1d3 Ne8 Rd2 Be6 Rdd8 Bd5 Rd4 Be4 Nd7 Bc2 Nf8 Bb3 Nd7 Ba4 Na7+
4N2K/1r5b/3N1r1k/4B2q/nQ1R1r1r/bR2rn2/1NBQ2Pn/rq2nB1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Ke4 f5+ Ke5 Kf7 b4 Kg7 c4 d5 e4 h3 b6 h4 c5 h2 b7 h3 b5 f3 b6 f2 c6 a4 c7 a3 Bf4 a2 Qf3 d3 Bd2 f4 Na3 d4 Be2 f1R Ba5 d2 Qe3 d1R Qc1 f3 Bc4 f2 Qc2 d3 Bd2 Rde1 Rd1 a1R Bc3 d2 Nb5 Rh4 Nd6 Nf6 Ne2 R8a7 Ng3 Bf5 c8B Bh7 Bf5 Kh6 Rg1 Nd5 Nh1 Re3 Ke6 Nd7 Kf7 Rg4 b8Q Rf4 b7 Nb4 e5 Qh4 e6 Nd3 e7 Ne1 e8N Qg5 Rb1 d1N Rb3 Nb2 Qd2 Na4 Bf6 Qg4 Bc2 Qd1 Be2 Qb1 Ba6 Nf3 Bc4 Ndc5 Ba6 Nd3 Bb5 Rc1 Rd1 f1N Bc4 Nde1 Bb5 Be4 Kg8 Bh7+ Kh8 Ra6 Be5 Ra7 Nc4 Ba3 Ned6 Ra6 Nb2 Rb6 Bcd3 Rc7 Bc2 Ra6 Qf8+ Rg7 b8N Rb6 Ndc4 Rbf6 Qfb4 Re7 Nd6 Rb7 Nf2 h1Q Nd7 N1h2 Bf1 Qg1 Nh1 Qf2 Nb6 Qh4 Nb6c4 Qh5 Ne8 Ng4 Ncd6 h2 Nf2 h1R Bf5 Re6 Bc2 Rh4 Nh1 Rg6 Qf2 Rgf6 Rd4 Ngh2 Qe2 Ra2 Qed2 Ra1
1rn1kq1B/1Q1N1bq1/r1r2R2/4r1r1/4rb2/PB2RQ2/BN3nnn/3N2KB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f5 e4 h5 d4 c5 g4 b5 g5 b3 e5 b4 e6 c4 a3 c3 g6 b2 d6 f3 g7 c2 e7 h3 d5 h4 Bb5+ Nc6 Ba4 b3 Qf1 f4 Qc4 h2 Qa6 h3 Qb5 Nh6 g8B Ra6 Ra2 Ng4+ Kf1 f2 Qe2 Qd7 Ra1 Bh6 Nf3 Na7 Bd2 c1R+ Ne1 Rcc6 Nc3 b1R Qf3 b2 Nd1 Rh7 Bc3 Rg7 Bb3 Rg5 Rg1 h1N Bh8 h2 Rg3 Rbc1 Rb1 R1c4 Nd3 Re4 Rc1 b1R N3b2 Rge5 Rc3 Qb7 Re3 Be6 Rh3 Bg5 Rh6 Bf7 Rf6 Nc8 Kg2 f1N Ba2 Kd7 e8B+ Kd8 d7 Nhf2 Bb3 h1R Ba2 Rh7 Kg1 Rh5 Bb3 Ke7 d8N Ngh2 Ne6 Bh6 Nc5 Rhg5+ Qg3 f3 d6+ Kf8 d7 Qa7 d8Q Qe7 Re2 Ne3 Qd7 Ng2 Qb7 Qc7 Bd7 Ke7 Bde6 Ke8 Re3 Qe7 Ba2 Qf8 Nd7 Qg7 Nc4 Rb3 Bd5 Rb4 Ncb2 Rb3 Qa8 Rb8 Qg4 Rh5 Qb7 Bf4 Qf5 Rg5 Bdb3 Bh5 Bge6 Bf7 Bed5 Bg3 Nc5 Ne1 Rg6 Nh3+ Kh1 f2 Nc4 Be6 Qf4 Rd4 Bg2 Rde4 Ncb2 Bc4 Nd7 Bg8 Qf3 Bd5 Qe2 Bg8 Qf1 Bd5 Qg1 f1Q Rh6 Qff8 Qf1 Be6 Qf3 Bf7 Rf6 Nf2+ Kg1 Bf4 Qh5 Nhg4 Bh1 Ng2 Qh3 Nh2 Qg4 Rcc4 Qf3 Rcc6
3Q1NNB/2r3K1/kn4R1/q1BB4/N2bP1n1/1bn1rb2/2r1n1Nr/Rn4Qb w - - 0 1 illegal: No possible last move
1bQqb2r/2qN3Q/bBbNR3/1qR1q3/3PnK2/7B/RR1N1n1k/q5rq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Ke6 d4 Kf5 b4 h5 e3 a5 g3 c5 b6 a4 b7 a3 b5 c3 b6 a2 Bb2 c4 Rh3 c2 Be2 c1Q Rh2 h3 Qb3 c3 Qd1 h4 Rf2 c2 Bc4 h2 Bb3 h1B+ Rg2 h3 Ne2 h2 Nd2 Na6 b8N Bd7 b7 Be8 Ba3 Nf6 Bc5 Bd6 Bb6 Nb4 Nc3 Ne4 Nb5 Nd3 Nd7 Ndf2 b8R f6 Rb7 Bb8 g4+ Kg5 Rc7 Kh4 g5 Kh3 g6 f5 Qe2 Qe1 g7 c1Q g8Q Ra4 Rb1 a1Q Qd3 Ra7 Rc8 Qcc7 Nd6 Ra5 Qdc4 Rc5 Qd3 Rc1 Rb2 Rd1 Be6 Rb1 Nf1 Qea5 Nd2 Qe5 Qa6 Rg1 Qf7 Qb7 Rc5 Qbc7 Qc8 Qa5 Ke2 Qa1 Rg8 Bg2 Rf8 h1Q Qh7+ Kg3 Rg8+ Ng5 Ra2 Bc6 e4 f3+ Ke3 Kg2 Qg6 Kh2 Qh7+ Nfh3 Rb2 f2 Rf8 f1Q Ra2 Qd5 e5 Ne4 Rg8 Qfc4 Rg4 Qb5 Rf4 Rg7 Rf2+ Rg2 Kf3 f4 Bf5 Qe6 Rb2 Qd5 e6 Qe5 e7 Qc4 Qg8 Qb5 Re2 Nhf2 Bh3 Bf7 e8R Rg1+ Bg2 Bg6 Re6 Be8 Qg7 Nd3 Kg4 f3 Qf7 f2 Qh7+ Qh4+ Kf3 f1B Ke3 Ndf2 Bh3 Qhd8 Ra2 Qd5 Kf4 Qbb1 Re1 Ba6 Rec1 Qbb3 Rb1 Qb5 Rbb2 Qe5+
b1K1RbQR/Q4r1n/4b1rn/qN5B/bPN2NNB/b2n2b1/2k1n1Q1/6q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 c4 Ke5 e4 f5 b4 a5 c5 d5 h5 g5 b6 g3+ Kf3 g4+ Kg2 a4 c6 a3 c7 a2 h6 d3 b7 Kd4 e5 d2 h7 Ra6 e6 Nd7 b8N Ndf6 Qf3 d1N e7 Nf2 e8Q Bb7 Qg6 Ba8 c8Q Qa5 Be2 Rb6 Kf1 g2+ Ke1 g3 Kd2 Rb7 Nh3 g1B Ng5 g2 Rh5 Bh2 Kc2 g1N Kb3 Rf7 Na6 Bg3 Qg2 f3 Qb7 f4 Nd2 Ke3 Bb5 d4 Kc4 d3 Nc7 Ke2 Nge4 Kd1 Bb2+ Kc2 Re1 a1B Be5 Bb2 Qa7 Ba3 Bc6 Ne7 Qg8 Nf5 Rh2 Nfh3 Bd6 f2 Be7 f1Q Nf2 f3 Bd8 Nf4 Re8 Nge2 Rh1 Kb2 Nb5 Qg1 Be7 Kc1 Kc5 Kb2 Rh5 Kc1 Nc4 d2 Bb7 d1B Kc6 Ba4 Rh4 Nd3 Rh2 Ne4 Kd7 Nf6+ Kc8 Kc2 Be4 Nfd4 Bg6 Nf5 Ng4 f2 Qg7 Rg8 h8N Bc6 Rh7 Nh6 Bh5 Ba8 Qg5 Rgg7 Ng6 Rg8 Rh8 Nh7 Nf4 Rgg7 Qg6 Rg8 Bh4 Rgg7 Qh1 f1B Nf2 Bfg2 Qh2 Bgc6 Ng4 Bd5 Qg2 Be6+ Kb8 Rd7 Kc8 Rg8 Qf7 Rg6 Qg8 Rf7+
q1r1rrr1/3Q4/1B2RR1n/1b1RNqk1/PNK1n3/r7/2N1Nbb1/r1bQ3B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kf6 Kd3 b5 e4 c5 g4 h5 a4 b3 d6 f3 d7 b4 d5 f2 d6 c4+ Kd4 c3 Kd5 b2 Nh3 c2 Bg2 f1B Ng1 b3 Nf3 h3 Qe1 h2 Qa5 h4 Ng5 h3 Qc7 Na6 Be3 c1B Nc3 b1R Ne6 b2 Nd4 Nh6 Nce2 Bb7+ Kc4 Rg8 Nc2 Rc8 Bb6 Kg5 e5 f5 e6 f4 e7 f3 e8R f2 Re6 Nc5 Bf3 Qf6 d8Q Bg2 d7 Bc6 Rf1 h1R Qd6 h2 Qd1 Bg7 Ra3 Bf8 Rd3 Ne4 Qc7 Bg7 d8N Qf5 Rd5 Ra1 Qd7 b1R Nf7+ Kh4 g5 Bd4 g6 Ra3 g7 Rba1 Rg1 f1R Ne5 Kg5 Rf6 Rge8 g8N Bf2 Ne7 Rg8 Re6 Re1 Rf1 Rgf8 Ra5 Rg1 Nd5 h1Q Rb5 Qh5 Ndb4 Qe8 Rd5 Qd8 Bd4 Qa5 Bc5 Qa8 Bb6 Bh1 Na6 Bg3 Re7 Nd6+ Kc5 Qh3 Nc4+ Kf6 Nab4 Bh4 Re4 Rgg8 Nf4 Qe6 Bg2 Qe5 Rf2 Kg5 Rf3 Ree3 Ne2 Bf2 Rf6 Qf5 Bf3 Bg2 Ree5 Bh3 Bh1 Bg2 Kd4 Bg3 Re8 Re6 Ne5 Ne4 Re7 Bh4 Kc4 Bf2 Rh7 Ree8 Re7 Bf1 Ree6 Bh3 Qf1 Bg2 Qd1 Bb5+
nR2b1bn/4RNPN/2kNrK2/3rn1N1/3B1b2/n1r2Q1B/b1qQR1br/8 w - - 0 1 illegal: No possible last move
R4Q2/2bNP2n/3nQ2q/rq3nRq/1N2NN2/2B1kbq1/Bn2r1q1/1K4qR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 Kc2 h5 b6 f5 b7 d5 g5 a5 c5 d3+ Kb2 d4 g6 h3 g7 f3 e3 a4 c6 d2 b5 h4 b6 d3 c7 h2 Qe1 d1N+ Ka2 f4 Qg3 a3 Bh3 f2 Qg4 f1Q Qg5 f3 Bg2 h3 Qg3 d2 Bb2 Bd6 Bf6 Ne7 g8R Bg4 c8Q Bc7 Rg7 Ra5 Rh7 Qb5 Qd7 Nf5 Qe1 Qg8+ Qf7 Nb2 Ne2 d1Q Bc3 Nd7 b8N Nf8 b7 Nd6 Rh5 Nh7 Nc6 Qc2 Bf1 f2 b8N Bf3 Nd7 Qg3 Nb4 Re8 Nf4 Re5 Bc4 f1N Qf8 Qcg2 Rg5 Re8 Rg1 h1Q Bg8 Qhh2 Rh1 Qhg1 Bb3 h2 Bc4 Nd2 Qe2 Nb3 Bf7 Nd4 Qc4 Re5 Qe6 N4f5 Bg8 Bd1 Bf7 Kf3 e4 Ke3 Nd2 Bf3 Bg8 Qd1 Bf7 Qde2 Kb1 a2+ Kc2 Rd5 e5 Rd4 Kc1 Rd3 Ne4 Rd2 Rf1 h1Q Bg8 Qh6 Rh1 Qg2f2 Qb3 Ra8 e6 Bh5 e7 Qfg2 Rb1 a1Q Qbf7 Qeg4 Qg6 Re2 Bb3 Ra6 Qe6 Q4h3 Bc4 Bf3 Bd5 Qaa4 Ra1 Q3h5 Bb3 Qd5 Bc4 Qab5 Kb1 Ra8 Ra7 Qd2 Ba2 Qdd5 Rb7 Ra5 Ra7 Qd2 Rd1 Qde1 Ra8 Qef2 Rh1 Qfg1+
1bn3nb/2PqN2Q/3rqk2/3Q4/r1N2Nb1/1NKB4/2BRRbb1/n2n1bB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 g5 c4 f5 h4 a5 b4 d5 h5 f3 e5 a4 b6 d3 b5 a3 c5 a2 c6 f4 h6 f2 h7 d4 b7 g3 e6 g2 b6 g4 c7 g3 Nh3 g1B Ba3+ Kf6 e7 f3 e8B g2 Bc6 Nd7 b8Q Ra4 b7 Qe7 Be4 Qe6 Rh2 Nb6 Bc5 Bg7 Nf4 Bd7 Be2 f1B Na3 f2 Nc4 Nc8 Rc1 a1N Rc2 Nh6 Bf5 Rd8 h8N Ng8 Nhg6 Bh8 Qb1 Bc6 Bb6 Rd6 Qa8 Bf3 b8N Bh5 Nc6 Bg4 Kc1 d2+ Kb2 d1Q N6a5 d3 Nb3 d2 Kc3 Qd7 Be3 Qe1 Bed3 Qe2 Bb6 Qee6 Qd5 d1N+ Kd2 Bfe2 Ne7 f1B Rb2 Bef3 Bfe4 Ne3 Kc3 Bf2 Re2 g1B Bc2 B3g2 Bed3 Nf5 Ba5 Ba7 Bb6 Bb8 Be3 Bf2 Bc5 Bg3 Bg1 Ne3 Rd2 Bh1 Rhe2 Bf2 Qh5 Be4 Qa2 Beg2 Qh7 Rb4 Qa8 Ra4 Qd5 Nd1+
N1r1bR2/1b3R1b/6b1/2N1Bqk1/3r1b1N/1Rb1Qb1q/QnP5/2bBnR1K w - - 0 1 illegal: No possible last move
2KBb2n/qNN2kb1/4rb1r/N3q1rb/B3q1B1/1n3N2/1P1QR1R1/2Q2q1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 d5 c4 g5 h4 f5 e4 f3 c5 a4 b6 a3 e5 f2 e6 f4 h5 g3 b7 f3 c6 g2 c7 a2 e7 g4 h6 g3 h7 Nh6 Qc2 Nd7 b8Q Ra6 Qb4 Kf7 e8N Qe7 Nf6 Nc5+ Kd2 d3 Kc3 d2 Kd4 d1B Qb6 Bg7 Na3 Bd7 c8B Be8 Bb5 f1Q Rh2 f2 Qd6 Qfe1 Bg5 f1Q Qc1 Bh5 Nf3 g1R Ba4 g2 Bg4 Qa5 Qd7 Re6 Nc4 Qb5 Rb1 a1Q Na5 Rh1 Qd8 g1B+ Rf2 Bh2 Rg2 Bg3 Qd6 Bh4 Qdf4 Qa2 Qfd2 Qa7 Ra1 Qb1 Ra3 Qbe2 Re3 Qee1 Ree2 Nb3+ Kc3 d4+ Kb4 d3 Nd5 Rg1 Bd8 Bhf6 Nc7 Rh1 Kc4 Rg8 Kd5 Rh2 Qe3 d2 Qec3 d1R+ Q3d2 Re5+ Kd6 Qe4 Ref2 Q1e3 Re2 Rg5 Qb1 Rh1 Qc1 Re1 h8N+ Kf8 Nf7 Rh8 N7e5 Nf7+ Ke6 Rh6 Nb7 Nh8 Kd6 Ng6 Nc6 Nh8 Nca5 Kg8 Nb5 Q3d4+ Kc7 Qde5+ Kc8 Kf7 Nc7 Rd1 Qe3 Rd6 Qed2 Re6
nr2q3/k3Nn1B/B5b1/rqb1Q1BB/2n3NP/5b2/1Nn1rQrR/R1K3b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 e4 d5 c4 Kd7 c5 Kc7 c6 Kb6 c7 g3 e5 a4 e6 g4 e7 d3 e8B d4 Ne2 f3 Rg1 a3 Bh3 f2 Rh1 f1R Bg6 a2 Be8 f4 Qa4 f3 Bh5 f2 Qb3 g2 Qc2 g1R Nec3 g3 Nd1 g2 Be8 Nd7 Bh5 Re1 Bb2 f1Q Na3 Ra5 Kc1 Re2 Bc3 Bc5 Rh2 Ka7 Bf5 Nh6 Bh7 Nb6 Bd2 Na8 Nc4 Qe8 Ne5 Bf5 c8B Bg6 Ba6 Nf7 Bg5 Qf5 Ng4 d2+ Kb2 d3 b6+ Kb8 b7 Ka7 b8N Rf8 Nc3 d1N+ Kc1 Nb2+ Nd1 Nc4 b5 Qd5 Qd2 Qb7 Qe1 Rh8 Nb2 Qbd7 Rb1 a1N Qf1 Nc2 Ra1 Kb6 Nc6 d2+ Kb1 d1B Kc1 Rf8 Ne7 Ka7 b6+ Kb8 b7 Ka7 Qf3 Qb5 Be3 Rh1 Qf2 g1B Bg5 Rg8 Rg2 Rh3 Rh2 Rhe3 Qg3 Rg2 Qf2 Bf3 Bf4 Re2 Bg5 Kb6 b8Q+ Bb7 Qd6+ Ka7 Qe5 Bf3 Rh3 Qec6 Rh1 Rb8 Rh2 Qe8
N1Rn4/r5nQ/q1BP1nbN/2B2qq1/1b2brRQ/2q1Bk1b/2R5/1n2K2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 c5 g6 h5 g7 f5 d3 a5 b6 a4 b5 h3 b7 h2 b6 h4 Nh3 c3 Rg1 h1N Rg5 c2 Rg4 c4 Ra3 c3 Ng1 f3 Bg2 f4 Rg6 h3 Ne2 f2+ Kf1 h2 Ra1 a3 Rc6 a2 Rc4 Rh4 Nd2 Qf6 Qe1 Qf5 Ng3 Nc6 b8R Ra7 b7 Nf6 g8R Nd8 Rg4 Bb4 Rc7 Be6 Rbc8 Bf7 b8B Bg6 Nc4+ Kd4 Bd2 c1Q e5 c2 e6 Qa3 e7 c1Q e8Q Qac3 Rb1 a1Q Qe7 Qa6 Ke2 f1N Bc6 Bf7 Nb6 Bg6 Qg7 Ke5 Be3 Nd2 Qf2 Qg1 Rf1 f3+ Ke1 Qg2 Qh7 Qg1 Ne4 Ng3 Ng5 h1B Na8 Ngh5 Bc5 Ng7 Nf7+ Ke6 Nh6 Ke5 Be3 Qg3 Rg1 Qgf4 Rf1 Q4g5 Rfg1 Bg2 Rh1 Bh3 Bd7 Bg2 d4+ Kd5 Rc4 Bh3 Bbf4 Ke4 R4c5 Bg2 d5 Bh3 d6 Bg2 Qg3 f2+ Kd1 f1B Ke1 Bh3 Bf2 Bc4 Bc6+ Bd5 Qh2 Kf3 B4e3 Be4 Bg1 Qd4 Rc2 Qc3 Bc5 Nfe8 Bge3 Nf6 Rg2 Rf4 Rg4 Bf1 Qh5 Bh3 Qh4 Nb1+
2n2b2/NP1RqnQ1/kr3NnN/b5RQ/5rBr/n6K/4qN1B/Rr2b2b w - - 0 1 illegal: No possible last move
8/3r3n/2kn2BR/rq4QR/1BB2q2/1BQ1nbr1/pbn1K1P1/2NRbn1N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 c4 h5 b4 a5 e4 d5 e5 Kd7 e6+ Kc6 c5 f5 e7 a3 e8B+ Qd7 g6 d3 g7 d4 Be3 a4 Qd2 h4 Qd1 h3 Rh2 a2 Qc1 f3 Qb2 a3 Nc3 f2+ Kd2 f4 Qc2 f3 Qc1 Nf6 g8Q Ra5 Nb1 Na6 Qg5 Nh7 Qf5 Rg8 Qb2 Rg3 Qg5 Bb7 Nc3 Be7 Kd1 d2 Bc4 f1N Ne4 f2 Ke2 d1N Bd2 Nde3 Rd1 a1B Qc3 a2 Bg6 Bb2 Rh1 h2 b5+ Kc7 b6+ Kc6 Bb3 Nb4 Bc4 Ba8 b7 Nbc2 b8R Qc7 Be1 Qf4 Rb5 Nf5 Bb3 N1e3 Bd2 f1N Nf2 Nd6 Be1 Kc7 c6 Bd8 Rc5 Kb6 c7 Bf3+ Kd3 Be7 c8B Bf6 Rd5 Bd8 Bc4 Kc6 Be6 Bc7 Ne2 Bd8 Rg1 h1Q Nc1 Qh5 Rh1 Bb6 Rh2 Bc5 Nh1 Bb4 Be4 Qe8 Bg6 Qb8 Rh3 Qb5 Rf5 Be4+ Ke2 Bf3+ Kf2 d3 Rh6 d2 Bb3+ Bc5 Bec4 Bd4 Qd8 Bf6 Rfh5 Bh4 Qg5 Be4+ Ke2 Bd5 Nd3 Be4 Rb1 d1R Nc1 Bf3+ Kf2 Ra6 Qg7 Nf7 Bb4 Rd7 Qc3 Nd6 Nd3 Ra5 Rd1 Rh3+ Ng3 Bd5+ Ke2 Be4 Nh1 Be1 Nc1 Rg3 Qge5 Bd5 Qg5 Bf3+
rnn1B1NR/Nb2N1k1/4b2r/4bQ1b/2Q3NK/1pq2qP1/1bR3BB/1r1q4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 e4 c5 a4 h5 d4 f5 d6 Kf7 a5 b3 e5 c4 a6 b2 e6+ Kg7 a7 c3 e7 h3 e8B b4 d7 c2 d5 h4 d6 h2 Qh5 b3 Ra2 h3 Nf3 Qf6 d8N Be6 d7 Bd6 Nc6 Rh6 d8N Ne7 Nfe5 f3 Kg3 f2 Na3 b1R Bf4 c1B Ndf7 Bb2 Ng4 Qc3+ Kh4 Be5 Nb5 Nc8 Bg3 f4 Ne7 f3 Bf4 Rf6 Nfh6 Rg6 Nhg8 Rh6 Bc4 f1B Bd5 f2 Be4 Rf6 Qf5 Be2 B4c6 f1Q Bg3 Ba3 Rc2 Qd1 Kg5 Rh6 N4f6 Bb2 Be4 Rh7 B4c6 Bh5 Ng4 Bg6 Bb7 Nc6 Bf4 Rb8 a8Q Rh8 Qa6 Ra8 Bg3 Nb8 Na7 Rh4 Qc4 Rh7 Rf1 h1B Rf3 h2 Bf4 Nb6 Rh3 Nc8 Rh6 Bh5 Kh4 Bd5 g3 Bhg2 Be3 Be6 Bg1 h1Q+ Bh2 Qhf1 Bbc6 Be4 Ba4 Bb7 Bac6 Rh8 Bg2 Qff3 N8f6 Rf8 Nfg8 Rf6 Rh8 Rh6
qN1q1qQB/1b3Rq1/1nN2r1Q/1K3n2/2r1B2P/Rq2p2Q/1N4rb/4kbQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 Kh4 b6 e5 f5 a5 b7 g5 c5 d5 c6 g3 h3 g4 f6 e3 Kd3 a4 b5 a3 b6 e2 c7 e1Q f7 e4+ Kc2 g2 Kb3 Kg3 h4 Kf2 Bd2 a2 Ba6 g3 Ka4 d3 Ka5 d4 Bb4 d2 Na3 e3 Be7 d3 Rh3 Qf1 Qg4 d1B Ne2 g1Q Qf3+ Ke1 Qf6 g2 Nd4 d2 Nc6 Rh6 Rf3 Nd7 b8N Bb7 Qg7 Rf6 c8Q Nh6 Nc4 Nf5 Kb5 Qh1 Bb4 g1R Bc3 Bd6 f8Q Rg2 Be5 Qf2 Nb2 Bc7 Bc3 Bh2 Rf4 Qf3 Qg4 Qg1 Qh6 Qgf2 Qh3 Q2g3 Qc7 Qg7 Qe5 Qgf8 Qe4 Qg4 Qb1 Qgg7 Be5 Bc8 Bb7 Ra4 Ba8 Rc4 b7 Nb6 Rf3 Ke2 Qc1 Bc2 Qh1 d1Q Qg1 Bd3 Rf4 Kd2 Bd4 Bf1 Be5 Re6 Bd4 Ke1 Rf3 Ne7 Rf7 Nf5 Bf6 Qg5 Bh8 Qgg7 Nd7 Qb1 b8Q Bb7 Qc8 Rf6 Ndb8 Ne7 Qcg4 Nf5 Qgg6 Qbd1 Qgh7 Qb1 Qg8 Qbd1 Rc1 a1Q Rc3 Qa2 Ra3 Qdb3+ Nb4 Bc8 Bc6 Bb7 Be4 Qc3 N4c6 Qcd3 Rc3 Qa8 Ra3 Qb3+
kNn3n1/1nK2R1B/8/1b1Br2Q/r1Rq2p1/R2q1n2/1B2rb1P/q1Qn2RN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 d5 b4 Kd7 e4 Kc7 c4 Kb7 b6 f5 c5 g5 e5 g3 e6 g4 e7 g2 e8Q f3 b5 a4 Ba3 f4 Qf7+ Nd7 Bb2 f2 Qc1 f3 Qg7 a3 Qh7 a2 Na3 Ra4 c6+ Ka8 c7 Bc5 Qh5 Ba6 Nh3 g1N Bg2 f1N c8B f2 Nc2 Ne3 Nb4 f1R Nf2 Nc4 Nc6 Nf3 Rg1 Na5 Nb8 Re1 Nh1 Re5 b7+ Ka7 Qe1 Nb6 Bf5 Nc8 Bh7 Qd6 Rc1 a1Q Rc4 Qf6 Qc1 Qb6 Kc2 d3+ Kc3 d2 Kd3 Be3 Kc3 d4+ Kd3 Rc5 Ke4 Bf2 Kf4 d1N Ke4 Rc7 Kd5 Qc5+ Ke6 Rc6+ Kd7 d3 Kd8 Re6 Kd7 Qd4+ Kc7 Nd2 Bd5 Re2 Nd7 Nf3 b8R d2 Rb7+ Ka8 b6 Bb5 Nb8 Ne1 Kd8 Nf3 Rf7+ Nb7+ Kc7 Qd3 Qe5 Qd4 Nd7 Ne3 Bb1 d1Q Qg5 Rh5 Bh7 Bc6 Qh4 Re5 Qh5 Na5 b7+ Ka7 b8R Q1d3 Rb5 Nb7 Rb3 Ka8 Nb8 Nd1 Ra3 Bb5
n6b/bB6/2Q3qb/2nqRQ1R/brrN1p2/B4PN1/RB1q2BK/2bk2n1 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 c4 Kd7 d4 Kd6 g4 h5 g5 f5 c5+ Kd5 c6 e5 g6 a5 b6 e3 c7 Ke4 g7 h3 b7 a4 d5 h4 d6 e2 d7 h2 Bg5 a3 Bd2 Kd3 Bh3 a2 Qa4 e4 Be3 b3 Bg4 Kc2 Qa6 b2 Qd6 f4 Nc3 b1Q+ Bc1 h3 Qf6 Ra4 Qf5 Ne7 g8Q Nd5 Qgf7 Na6 b8B Rc4 Na4 Nc5 Q7h5 Nb6 Bf3 Bh6 Qe6 Na8 Qhe5 Qb6 Qg4 Qg6 Qd5 Ba6 c8B Bb5 Nc3 Ba4 Nb5 Rb4 Rb1 a1B Qc6 Qa5 Bb7 Rc8 d8R Bh8 Rd1 Qd8 Bg2 Qd5 f3 Qd2+ Kf2 e1B+ Kf1 e3 Ba7 Bf2 Re1 Qd5 Re2+ Kd1 Rc2 Rc7 Ne2 Rc8 Rg1 h1N Qf5 h2 Ng3 Rc7 Ra2 Rc8 Bh3 e2+ Kg2+ e1B Nd4 Be3 Rbb2 Nf2 Re2 Rc7 Ba3 Bc1 Re5 h1Q+ Kf1 Qh2 Rh1 Bc3 Bg2 Nh3 Bb2 Ng1 Kf2 Nb3 Bc5 Be1+ Kf1 Bf2 Bf8 Nc5 Bd6 Qh4 Rh2 Qd8 Rh5 Bfe3 Qg4 Qe7 Qb6 Nd7 Nc6 Qd8 Bh1 Q5g8 Kg2 Rb3 Bda3 Rb4 Kh2 Qb3 Qa6 Ba7 Bg2 Qbd3 Qb6 Qd2 Nd4 Rcc4 Qc6 Nc5 Qf5 Qd5
1q2b3/1Qb5/R1K1Qq1R/1BN2q2/RB2P1B1/n5p1/qN1Bnnbr/1kqr4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 f3 e3 a4 c5 a3 c6 d2 b6 f2 b5 g3 b7 g2 h5 g4 h6 g3 c7 a2 b6 Bd6 h7 Qf6 Qa4 d1Q+ Bd2 Qc1 Rh3 Na6 b8R Nh6 b7 Ng4 Ne2 g1N Bc3 Nb4+ Kc4 Ke4 Kb5 Kd3 e4 Nc2 Rh2 Na3+ Kb6 Be5+ Qc6 Kc2 Rg2 d5 Qd6 d4 Kc5 d3 Kb6 d2 Rh2 d1Q Bb4 Bd7 c8B Be8 Nec3 Ne2 Qe6 Qdd8+ Kc5 Ra7 Na4 Bc7 Nb2 Ra4 Bd2 Rd4 Rh6 Rd3 Bb4 Rd1 Bd7 Qc8 Ra8 Qb8 Kc6 Qf5 Bh3 f1B Ra6 Bg2 Nd2 Nf2 Nb3 Qf6 Bg4 Qf5 Rb1 a1Q Nc5 Qa2 Bd2 Qg6 Bb4 f5 Ra1 f4 Ra4 f3 Bd2 Qa7 b8Q Qf6 Qb7 Qb8 Ra6 Nh3 Bb4 f2 Ra4 f1Q Bd2 Rf8 h8B Nf2 Ra6 Qf5 Bhc3 Rh8 Bb4 Qf6 Rg6 Rh2 Rh6 Nh1 Ra4 Q1f5 Ra6 Nf2 Ra4 Qb3 Ra2 Kb1 Ra6 Nb5 R2a4 Qa2 Qb6 Rhh1 Qb7 Bf4 Kb6 Rh2 Bc6 Na3 Bb5 Bf7 Kc6 Bc7 Rh4 Bg6 Rh6 Be8#
bR3q2/3n1r1B/1Q4qN/1b1qB2n/4p1R1/kP1qQ2r/1N1B1qNb/1K1r1B2 w - - 0 1 illegal: No possible last move
2r1Q1qK/Bq3Q1R/B2R3b/k2N1RN1/1qbP1p2/1Qnb4/n6Q/1br2b1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 Kc7+ Ke5 Kb6 b4 a5 d4 f5 e4 a4 g4 a3 g5 f3 g6 a2 g7 f4 Na3 c3 Qd2 f2 Bb2 c2 Bc4 c1R Qe2 f1B Qd3 h3 Qd2 h4 Qe2 h2 Nf3 h3 Nc2 Qd7 Ne3 Ba6 Ba3 Nf6 g8Q Nd5 Qf7 Bh6 Ng5 Nc3 Kf6 Nc6 e5 Rac8 e6 Qb7 e7 Rh7 Bd3 c4 e8Q Rh8 Rb1 a1Q Kg6 Qb2 Ra1 Rg8+ Kh7 Rg7+ Kh8 Qb3 Rg1 h1B Qh2 Be4 Rh1 Rg6 Be2 Bb1 Ra2 Qc2 Rb2 Re6 Ra2 Qg6 Nd5+ Ka7 Bd3 Ree1 Re2 Red1 Re5 Re1 Rf5 Red1 Ne3 Kb6 Be2 Nd5 Bd3 c3 Be2 c2 Bc4 Nc3 Nd5+ Ka7 b6+ Kb8 b5 Nb4 Rg1 Nba2 Bc5 Bd3 Rg3 Rh1 Re3 Bf1 Re6 Bd3 Rd6 Ka8 Qg3 h2 Qg2 Rhf1 Qf2 h1B Qg2 Rg1 Qh2 Bf1 Be2 Be4 Bd3 Rh1 Be2 Qc6 b7+ Kb8 Bd3 Qb6 Bc4 Ka7 Be2 Bd3 b8R+ Rc7 Rbd8 Bc4 R8d7 Bd3 Bb4 Qb7 Re7 Rc8 b6+ Kb8 Bc5 Bac4 Ree6 Qe7 Re3 Kb7 Rh3 Ka6 b7+ Ka5 b8Q Qb7 Rh4 Re1 Ba7 c1Q Rh5 Qa3 Rh3 Rc1 Rh5 Qa8 Qb3 Qb7 Rh3 Qab4 Rh4 Bf8 Rh7 Bh6 Nh3 Be4 Qff8 Bb5 Ng5 Ba6 Bb5 Bec2 Qff7 Bcd3 Bc6 Bac4 Bb5 Rc5 Ba6 Rc7 Rg7 Rc8 Rh7 Qg8+
n2r4/NnK1Bkr1/r3b3/2n1R3/1q1pBb2/1qBPQ1QQ/n2n2Q1/1b1R2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 h5 Kf3 d5 c4 f5 e4 a5 g4 d4 c5 a4 e5 h3 c6 a3 e6 b3 b6 h2 g5 b2 g6 h4 d3 h3 e7 a2 g7 Nd7 b7 Nh6 g8Q Ra6 b8B Nc5 c7 Qd5+ Ke2 f3+ Kd2 f4 Qg5 f2 Qg8 f3 Ba7 Be6 Qg7 Qb3 Ne2 Nf7 c8Q+ Nd8 Nbc3 b1B Qg3 Kf7 Bb2 Ndb7 Bg2 f1N+ Kc1 f2 Ng1 Rg8 Qd2 Bh6 Nb5 Ne3 Bc3 f1N Be4 Rg7 Qdg2 Bf4 Qd7 Nd2 e8Q+ Kf6 Bb6 Nd5 Na7 Qb4 Bc7 Nb6 Kd1 Qb3+ Ke2 Qb4 Bd6 Qb3 Qec8 Qb4 Be7+ Kf7 Qh8 Qb3 Qh6 Qb4 Nf3 Qb3 Rf1 h1R Re1 h2 Qhh3 Rf1 Ng1 h1Q Qe3 Qh2 Qhg3 Qh8 Qc8 Qe8 Rd1 Qeb5 Qh8 Q5b4 Qhh3 Bc2 Rab1 a1N Rb2 Bb1 Ra2 Nc2 Ra5 Nca4 Re5 Nac5 Nf3 Rh1 Ng1 Nf1 Kf3 Rh2 Qhg4 Rh8 Q4h3 Rd8 Qgg4 Bh2 Q4g3 Nd2+ Kf4 Qb5 Rh5 Nb4 Ke5 Na2 Rg5 Q5b4 Rh5 Rh8 Rg5 Nd8 Kd6 Ndb7+ Kc7 Rd8 Qd6 Bf4 Rd5 Bh6 Qdg3 Bf4+ Re5 Na8#
Q1N2N2/2r3r1/Q1BbRKN1/1r6/Q2pn1rP/nb3qBQ/2kb2qr/3R3q w - - 0 1 illegal: No possible last move
2R1br1Q/qn4Nb/2BB4/1NR1K2r/rqpn1q2/1r2Qrk1/3RQ1P1/4b1Q1 w - - 0 1 illegal: No possible last move
Rq1B1n1k/Q2b1r1n/n4r1N/b1NBR2p/2K3Nq/q2BbQ2/3PN3/q5q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 h5 Ke2 c5 b4 f5 g4 Kf7 b6 Kg7 b5 a5 g5 f3+ Ke3 a4 e5 f4+ Ke4 c3 b7 a3 g6 h3 b6 c2 e6 a2 e7 h2 e8Q c4 Bb2+ c3 Nh3 c1Q Ba6 f2 Qea4 f1Q Ng1 f3 Ba3 c2 Nh3 f2 Qf3 Bc5 Ng5 Bd7 Kd5 Ra7 Bd3 Qg1 Nf7 f1Q Kc4 Be3 Be7 Nf6 Nc3 Rh6 Ne2 Na6 b8N Nh7 b7 Qa3 Nc6 c1N b8N Nb3 Nce5 Nd4 Ng4 Ne6 Bg5 Kg8 g7 Nef8 Re1 Qe8 Bd8 a1B Qa5 Bad4 Qb6 Rb7 Qa7 Rf6 Ra1 Bb6 Re1 Bc8 Nd7 Ba5 Nc5 Bd7 Ra1 Qff2 Ra2 Qa1 Re1 h1Q Rb1 Nb8 Rb5 Bf5 Ne6 Qae7 Bb6 Qhh4 Qa6 Bc3 Re5 Qfg1 Raa5 Qea3 Nc5 Qc8 Bd8 Re7 Qb6 Bd7 Ra8 Na6 Qa7 Ba5 Re4 Ng5 Nfh6+ Kh7 g8B+ Kh8 Be6 Qb8 Bd5 Ngh7 Re5 Ref7
Nr1n4/2Q3qN/K3bR2/r1NNBpPq/1Q3B2/2n2k2/2B1rqR1/nn1nb3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 Kb5 f5 c4 d5 e3 f3 g5 f2 c5 h3 b7 h2 c6 a4 c7 a3 Qb3 h4 Qc3 a2 Qb3 h3 Bb2 d3 Be5 d4 Ne2 d2 Nbc3+ Kf3 e4 d1N Nc1 d3 Nd5 Nc6 b8Q Qf6 Rg1 h1Q Rg2 Be6 c8N h2 Ncb6 Qg7 Qc7 Re8 Na8 Nc3+ Ka6 d2 b5 d1N b6 Nf6 b7 Nd8 b8B Bb4 Bd3 Nb1 Bc2+ Bc3 Nd3 f1Q Qb5 Be1 Nc5 Qf2 Qb4 Re7 Bf4 Ree8 e5 Ne4 Na4 Nec3 Nc5 Na3 Rb1 a1N Rb2 Nab1 Ra2 Bf7 e6 Bg8 e7 Be6 Ra3 Qhf1+ Kb6 Bc8 Ra6 Nb3 Bd3 Nb7 Rg4 Qh4 Qc4 Qhh3 Qd8 Qh5 Bbd6 Bd7 Qc7 Na1 Ka7 Rhf8 Rc6 Rb8 Ka6 Nd8 e8N Rf6 Rg1 Re6 Nef6 Re4 Qb3 Reb4 Qc4 h1R Nh7 R4b5 Bde5 Rh2 Qb4 Re2 Rf6 Qf2 Rg2 Be6 Bc2 Ra5+
q3q1R1/2Q2Rn1/1Bb5/b2P2pb/Bk2qBQQ/4b2K/2nr2Q1/2Nr1Nbn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 Kg2 Kd6 b4 c5 h4 g5 d4 a5 e4 f5 d5 g3 b6 a4 b7 c3 b5 f3+ Kh3 f2 b6 g2 h5 f4+ Qg4 c2 h6 f3 h7 a3 Bc4 f1B Nd2 f2 Ne2 g1B+ Kg3 a2 Ba6 c4 e5+ Kc5 e6 c3 e7 Nh6 e8Q Nc6 b8B Bd7 b7 Nf5+ Kf3 Ng7 Kg3 Nb4 Qge4 Bc6 Nf4 Be2 Qf7 f1N+ Kh3 Bh5 Qg2 Ng3 Nf1 Qe8 Bc7 Be7 b8Q Bd8 Rh2 Nh1 Ne2 Qe4 B1f4 c1B Rb1 a1Q Qe6 c2 Qeg4 Bce3 Bb5 c1Q Ba4 Nc2 Rb7 Qe1 Bb6+ Kb4 Rf7 Re8 h8Q Bc7 Bb5 Ra2 Nc1 Rb2 Qh6 Qa8 Ba4 Bd8 Qc7 Rb1 Nb3 Rd1 Nc1 Re5 Qh4 Qe2 Qe6 Qb5 Qeg4 Rf5 Bg3 Rf2 Bf4 Rfd2 Q2f3 Qc5 Re2 Qce7 Qfg2 Qe8 Rf2 Bf6 Rf8 Bc3 Rg8 Re1 Be5 Red1 Rf7 Kc4 Bd6 Ba5 Bf4 Kb4
RB3B2/5Nn1/4b1Rn/K1P4q/bNkbrn1n/3p3Q/q1BRQ2r/2B1r2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 a5 c4 f5 g4 h5 g5 h3 b6 f3 g6 f2 b7 h4 g7 f4 b5 Kc5 b6 d5 e5 a4 e6 d3 Kc3 d4+ Kb2 f3 Ka3 d2 e7 h2 e8Q h3 Nc3 d3 Qe4 Qg5 Qde1 d1B Q4e2 Na6 b8B Nh6 g8R Be6 b7 Nc7 Q2d2 Nd5 Rg7 Nf4 Na2 Qh5 Rg6 Bg7 Rg4 Bd4 Be5 Rae8 Bg2 f1N b8B f2 Bd5 Ng3 Qee3 f1R Nb4 Re1 Bg7 Ngf5 Qde2 Nh4 Nf3 Rh7 Rhg1 h1N R1g2 h2 Ng5 Ng3 Nf7 h1N Rg6 Ngf5 Qh3 Re7 Bf8 Ng7 Qee3 Rh8 Rd2 Bc2 Qe2 Bd1 Ka2 a3 Bc6 Rh7 Ba4 Rh8 Bc2 Rh7 Kb3 a2 Rb1 a1Q Rb2 Rh8 Ra2 Rh7 Ra3 Qa2+ Ka4 Rh8 Ka5 Rh7 Bb1 Ba4 Bc2 Bf2 Qhf3 Kd4+ c5 Kc4 Qh3 Bd4 Kb6 Bf5 Ka6 Re4 Ka5 Be6 Kb6 Bb3 Ra8 Ba4 Ka5 Qg5 Nd5 N4f5 Ba3 Ng4 Qhf1 Rh2 Qh3 Nh4 Bc1 Nh6 Nb4 Qh5
2bRBqK1/1Q1r1Q1r/1r3N2/bBP1Bnb1/1n3B1R/2p3b1/N6b/1n1kqR2 w - - 0 1 illegal: No proof kernel
k2KQb1Q/4b1n1/4qr2/1p2B1qr/bP1B1NQ1/1R2n3/r1B1b1b1/2nB2RN w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 Rh3 exf4 Qb3 a4 Rh1 axb3 Kf2 Kd7 Kf3 c5 Kg4 h5+ Kf5 b5 d4 c4 a4 f3 e4 h3 g4 f2 g5 h2 g6 b2 g7 h4 d6 Kc6+ d7 Kb7 a5 c3 d5 c2 e5 h3 d6 Nc6 e6 Nge7+ Kf6 Nd4 g8Q Rh5 Be3 c1B Be2 f1N Nc3 b1B Nd5 Nb3 Qg4 Nf5+ e7 Ng7 Bd4 Ne3 Ra3 Bc2 Nf4 Bb2 Be5 Nc1 Bd1 Ba4 Nge2 Kb8 Rg1 h1Q a6 h2 Rd3 Qc6 Rb3 h1B Ng3 Bg2 Nh1 Ra7 Bd4 Ka8 Be5 Qd5 Bd4 Qb6 d8B Bf5 e8B Bd3 Bc7 Be2 Bc2 Qbc5 d7 Bc3 Bb8 Be1 d8Q Bh4+ Qg5 Qcc4 Bd7 Qcc5 Qe8 Qc8 Bg4 Qdd8+ Ke5 f5 Bf3+ Qd5+ Kf6 Qc5 Bbe5+ Qc8 Ng6 f4 Bg4 f3 Nf4 f2 Bf3 Rc7 a7 f1R Bg4 Qc5 Bf3+ Rc6+ Kf7 Rf2 Qg4 Bd3 Bfd1 Be2 Qee6 Bhe7 Qh6 Ngf5 Qh8 Qe6+ Ke8 Qcd5 Bd3 Rc2 Be4 Ra2 Bec2 Bd6+ Kd8 Ng7 Ng6 Rf6 Nf4 Bc5+ Bd6 Qg5 B6e5 Kb7 a8Q+ Kb6 Qd5 Ka7 Qd7+ Ka8 Qe8 Bce7+
k3qnR1/2qQ2N1/NRNB1Q1n/p5n1/rN3Prb/2b3b1/1K5B/1b1Bbr2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 e5 h4 g5 b4 d5 c4 Kd7 Kc2 Kc7 f4 Kb7 h5 g3 c5 g2 b6 e3 b5 e2 h6 e1B h7 d3+ Kb2 g4 Ka2 d2 Rh5 g3 Bd3 d4 Nf3 g1N Nh4 e4 Qa4 d1R Rg5 e3 Kb2 e2 Bc2 g2 Be3 d3 Na3 d2 Rb1 Qc7 Nf5 Nh3 Ng7 Be7 Bg1 Bg3 Bh2 Rf1 Bd1 e1B Nc2 g1B Nb4 Nd7 c6+ Kb8 b7 Nh6 Rg4 Rg8 h8Q Nf8 Rg5 a6 Rg4 Ka7 b8N Beh4 Rg6 Bf5 Rg4 a5 N8a6 Re8 b6+ Ka8 Rg6 Be3 b7+ Ka7 b8B+ Ka8 Qb5 Re4 Qd5 Ng5 Qd7 Qd8 c7 Qe8 c8N Rd4 Nc2 Ra4 Ne7 Be4 Nc6 Bf5 Be2 d1Q Bd6 B3d2 N2b4 Bd3 Bf3 Qde2 Bh5 Q2e7 Bd1 Q7d8 Ne6 Qc7 Qf6 Rh8 Rg8 Bf5 Rc1 Bb1 Rc5 Rh7 Rb5 Rg7 Rb7 Ngf7 Rb5 Rg4 Ng7 Ng5 Rb6 Bc3+
B2q3q/q3Qbb1/N4n1P/rr2N3/1K2nQ1N/p1B2NR1/2k1Bq1q/1Rb2n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 Ke4 b6 f5 b5 a5 b7 d5 e3 g5 c5 f3 h5 a4 c6 d3 Kc3 g3 c7 a3 b6 d4+ Kb3 d2 h6 d3 Qc2 d1Q Rh4+ f4 Bd2 g2 Ba5 f2 Bd2 g4 Rh3 g3 Kc4 f3 Kc3 Ra5 Qb3 Nd7 b8N Ngf6 b7 Nc5 Qf7 Be6 c8B Qe2 Nd7 Bg7 b8N Bd5 Qf8 Bf7 Ne5 Qe8 Be1 d2 Kb4 d1Q Bc3 Qdd8 Na6 Qed2 Bb5 f1Q Be2 f2 Ngf3 g1B Nh4 g2 Rg3 Qfe1 Bd7 f1N Bdb5 Qf2 Bc6+ Q2d5 Ba8 Qb7+ Bb5 Bh2 Qe7 g1Q Nd2+ Kd5 Re1 Nce4 Rb1 Rh7 Ndf3 Qh8 Rh3 Bf4 Rg3 Qgh2 Qc7 Ke6 Qb8 Qa7 Be2 Ng5 e4 Bc1 Qb5 Kd6 Qa4 Ke6 Nc6 Kd6 e5+ Kd5 e6 Ke4 e7 Ke3 e8Q+ Nge4 Bd1 Kd3 Qe7 Bb3 Be2+ Kc2 Qb5 Bf7 Nce5 Bf8 Qe8 Rg7 Qd6 Rg5 Qee7 Bg7 Qd4 Rh5 Qe3 Rf5 Qf4 Rg5 Nc6 Rgc5 Nce5 Rcb5+
1N6/1bNK1R2/1q2n1qP/N3qRB1/2Q2pnb/QbN2Bq1/r1kqR2n/r7 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 d2 h5 g3 e3 f3 b6 a4 b7 f2 b5 g4 h6 a3 b6 g2 c5 g3 c6 a2 c7 Be7 Nf3 g1Q Ne1 g2 Qe2 d1B Nc3 Nc6 b8R Bb7 c8Q Bb3+ Qc4 Bh4 Kd6 Nf6 Qa4 Nd4 Rh2 Ng4 Qcc4 Ne6 Be2 f1N Bf3 f6 Rb1 a1Q Nc2 Re8 Qab4 Ra2 Na3 Qf2 Rb2 g1Q Re2 Qe1 Rhf2 Nfh2 Ra8 Re7 Ra4 Qg8 Ra7 Qg6 Bd2 Re8 Bc1 Ra8 Ke7 d5 e4+ Ke5 Kd7 f5 Bg5 d4 Qe7 d3 Ra5+ Bd5 b7 d2 b8N d1Q Qc6 Kd4 e5 Kd3 Bg2 Nc7 e6 Be4 Ncb5 Qdd2 Nc4 Qh8 Nc3 Rc2 Qec5 Rb2 e7 Ne6 e8N Kc2+ Q5d6 Rb1 Nc7 Ra1 Re5 R8a2 Na5 Qhf6 Qc4 Bb7 Rf4 Qh8 Bf3 Qeg3 Rd5 Qb6 Qa3 Nd4 Rde5 Qhg7+ Re7 Qe5 Rf7 Ne6+ Rd4 f4 Rd6 Qee3 Rd5 Nd4 Rdf5 Qe5 Qcc5 Ne6+ Qd5 Nd4 Qc4 Ne6+
QnNrb3/7r/3bRb1p/3q2rr/3P2nN/1KB5/1R1rQNqQ/2kn1BN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Na6 e4 Kd7 g4 Ke6 b6 Ke5 g5 Kd4 d3 c5 Kd2 f5 Kc2 h3 b5 f3 g6 f4 g7 h2 b7 f2 b8Q h6 b6 f3 e5 c3 e6 c4 b7 Nf6 g8N Rh7 e7 Bd7 Ba3 Ke3 Be2 f1N e8N f2 Nd6 Be8 Nb5 Qd5 Qc7 Rd8 Kc1 c2 Kb2 c1Q+ Ka2 Qd2+ Bb2 c3+ Qb3 c2 b8Q Be7 Qa8 Nb8 Nf3 c1R N1c3 a5 Rb1 a4 Nd6 a3 Qbc4 Rc2 Kb3 a2 Nce4 a1B Nc8 Ba3 Rg1 h1R Nge7 Rh5 Qh2 Bd6 Be5 Bc3 Rg6 Bb2 Ng1 Bd4 Qg2 Rg5 Rb2 Ng4 Re6 Bc3 Bg3 Bh8 d4 Bf6 Bd3 Qe2 Ng6 Qf3 Nc3+ Kd2 Ne4+ Kc1 Qh1 Nfe3 Qh2 Qg2 Nh4 Rh5 Be2 f1R Be1 Rf4 Nf2 Rff5 Bf1 Nd1 Bb4 Rfg5 Bc3 Qc5 Qca6 Rd2 Qe2 Qcd5+
B2Br3/N4Kb1/3qPR2/1r2RN1n/1Q3Rb1/4q1r1/q1QnRp1k/rn2Q2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 a5 g4 h5 e4 d5+ Kd3 h3 b4 h4 c4 a4 c5 h2 c6 f3 b6 f2 c7 a3 b7 h3 g5 a2 b5 f4 g6 f3 b6 Bg7 Bd2 Nd7 b8R Qg5 b7 Ndf6 Bc3 Kf4 e5 Kg3 Qe1 Ra3 Bg2 Bg4 c8Q Nh5 e6 Ngf6 Qc7+ Qf4 Rf8 Ne4 b8Q Nd2 Rf6 Re8 Qb4 Rb3 Na3 Nb1 Qc6 Qg5 Nb5 Qe3+ Kc2 Ra3 Na7 d3+ Kb2 d2 Ne2+ Kh4 Rg1 h1Q Ng3 d1R Rf1 h2 Qcc4 d4 Nf5+ Kg5 Qce2 d3 Qc2 d2 Be5 Ra5 Bc7 Rb5 Bd8 Qg1 Bh1 Rc1 Bg2 d1Q Bh1 Qee2 Kb3 Qe3+ Kc4 Kf4 Bg2 Qd6 Bh1 Bh6 g7 Qg2 g8R Bg7 Rgf8 Rd1 Rg1 f1N R8f7 Qgf2 Rg2 Qfd2 Re2 f2 Ba8 h1R Rf8 Nc3 Rb1 a1R Rb3 Nb1 Rc3 Qh3 Rce3 Ra3 Re5 Qhe3 Nh6+ Kg3 Rf4 Qb8 Nf5+ Kh2 Rf6 Rc1 Qc5 Qa5 Kd5 Nfd2 Kc6 Ra1 Kd7 Qa2 Qb4 Rg1 Rf7 Rg3 Rf6 Rf8 Ke7 Re8+ Kf7 Qd6 Qbe4 Nf3 Q1b4 Rh1 Qe1 Nfd2 Qd4 Rgg1 Qb4 Rg3
8/3k2b1/Qb1p1R2/3P1b2/1N2RbQn/n1qbB2r/BqqRQK2/r3N1Rr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 h4 f5 c4 g5 d4 a5 e4 d6 b6 a4 d5 b3 c5 a3 e5 b2 b7 a2 e6 g3 h5 g4 h6 g2 c6 f3 e7 f4 c7 g3 h7 f2+ Ke2 f3+ Ke3 Bf5 c8Q Na6 b8Q Nh6 Qa7 Nb4 Qcb7 Nc2+ Kf4 Qb8 Bc4 f1R Qe1 f2 Kf3 Bg7 Qe2 Na3 Nc3 b1Q Qd4 Qc2 Qa6 Kd7 e8R Qbb2 Qg4 Re1 Rf8 f1B Rh4 Ra7 Rb1 a1Q Na2 Qbc3+ Be3 Qab2 Rf6 Raa8 Qd2 Bd3 Nb4 Rc1 Ba2 Rd1 Nh3 g1B Qe2 g2 Ng5 Bh2 Kf2 Rh1 Nf3 Bf4 Ne1 Rh3 Rd1 Rh1 Rd2 g1B+ Kg2 Nf7 Kf3 Ng5+ Kg2 Nf3 Kf1 Rhc8 h8R Ra7 R8h6 Rh8 Rhg6 Rh6 Qh3 Bf2+ Rg1 Ra8 Rg4 Rh7 Qg2 R7h3 Qg3 Nh4 Qg2 B4g3 Re4 Bf4 Qg4 Bfh6 Bf4 Bb6 Be3 Bf4 Kf2 Ra7 Qc4 Ra5 Qa6 Nb1 Bb3 Ra1 Ba2 Na3
r2B3B/1R1N1KR1/n1prqQ1q/1B3b2/1q5P/Qn3q1N/R3r2q/2nkb2R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 h4 Ke6 b4 Kd5 e4+ Kd4 e5 g5 e6 a5 b6 f5 e7 g3+ Kf3 g4+ Ke2 c3 e8Q c2 b7 c6 b5 f3+ Ke1 f4 b6 g2 Kf2 g3+ Ke1 a4 d3 f2+ Ke2 a3 Kf3 a2 Qe7 Nh6 Qh7 Qe8 Qf5 Bb4 Qg5 Qe6 Qg6 Be1 Nc3 Na6 b8R Nf5 Kg4 f3 Kg5 Re8 Nh3 g1R b7 g2 Bb2 Ke3 d4 c1N d5 Nd4 d6 Ndb3 Bb5 f1Q d7 f2 d8B Qfc4 Qd6 f1Q Qa3 Kd2 Nd5 Kd1 Bh8 Qb4 Nb6 Qf3 Nd7 Rf1 Kh6 g1Q Kg7 Qh2 Qf6 Rf2 Kg6 Rd2 Kg7 Rd6 Kg6 Ra7 Ra8 Re7 b8R Re8 Rb1 a1Q Rb7 Qad4 Rb2 Qde3 Ra2 Qef4 Rab8 Ra8 Kg7 Qee3 Rc7 Qh6+ Kf7 Qee4 Rbb7 Qeg4 Nb8 Re2 Re7 Bf5 Nd7 Qhe3 Kf8 Qg6 Rg7 Qgh6 Kf7 Qe6+
8/1nQ1B3/RKp1q2r/b2RrPBN/q1r2Qq1/1kn1Q3/bqN1n3/1q2BB2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 g4 e5+ Kc3 Kd5 b4 c6 d4 h3 f5 h4 b6 h2 g5 a4 b7 e3 g6 h3 b5 a3 g7 a2 b6 e4 Qh5 e2 Qh7 e1Q+ Bd2 e3 Nf3 e2 Ng5 Ne7 Kb4 c3 g8Q+ Be6 Na3 c2 Ne4 c1Q Qg1 Nd7 b8Q Nc5 b7 Qed1 Qg5 e1R Bd3 Qc8 Qgh6 Qg4 Rf1 h1Q Nc2 h2 Ng3 Re3 Qc7 Re5 Rd1 Bf7 Ba6 Qb2+ Ka5 Qe1 Qf4 h1N Qh3 Rh6 Nh5 Ng3 Bb4 Qd7 Kb6 Qg1 Rd2 Qgb1 Bf1 Be6 Qf2 Ra4 Qf4 Ne2 Qhe3 Kc4 d5+ Re4 Nd4 Re5 d6 Bd5 Rd3 Qe6 d7 Q1c2 Rad1 a1Q d8B Qab1 Ra3 Qe4 Nb5 Qed4 Be1 Rb4 Ra6 Qde4 b8B Nb7 Qc8 Ra4 Rd2 Kb4 Bbc7 Ba2 Bd6+ Kc4 Qc7 Nd5+ Ka7 Be7 Nd4 Nc3 Nc2 Kb3 Rd5 Qb4 Bc5 Qb5 Bd6 Rc4 Ba3 Bf8 Bg5 Qa4 Kb6 Bd6 Bc5 Be7 Bd4 Ba3 Bc5 Bb4 Bce7 Ba5+
n1QR1B1N/NQ1Br1r1/bp1bnnBR/3b4/1q1kB3/3rb3/2PqbR2/4K3 w - - 0 1 illegal: No possible last move, all moves rejected
b5K1/1Rr1BQ1q/PB1n3b/2b1q1p1/1N1bN1B1/R3nBb1/r1r1Q1n1/2k3N1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 b5 c4 e5 a4 g5 h4 e3 f4 e2 h5 e1B h6 g3 h7 e4 c6 g2 c5 e3 c7 b3 a5 b4 c6 e2 Ra4 b2 Na3 b1R Nc2 b3 Rh2 b2 Rh3 Bh6 Ra1 Bb4 Rh5 e1B Nf3 g1B Bc4 Bg3 Nh2 Bd4 Qf1 Qf6 Rh4 Bb7 c8B Na6 Be3 Rc1 Ra3 b1Q Nf3 Nc5 Qe2 Nd3 Ng1 Bbc5 Nb4 Rc2 a6 Ne1 Bb3 Ng2 Rh3 Ra2 Bd1 Ra7 Rb3 Ba8 Bb7 d6 c7 Qg7 c8N Rc2 Bc6 Rc7 Ra3 Bh4 Rf3 Bg3 Bb7 Kg4 Ke6 d5 f5 Nf6 Nd6 Ne8 Ne4 Nd6 f6 Rhc8 h8B Ra2 Bf2 Qc2 Rfb3+ Kf4 f7 Qd3 Bc6 Qb5 Qf1 Qh7 Bd7 Qf5+ Ke7 Qe2 f8Q Qe3 Bf3 Qe1 Qf7 Qc3 Be1 Ke3 Nd3 Qa1 Bf6 Qb2 Ba5 Qa1 Nc3 Kd2 Nb4 Qe1+ Qe2+ Kc1 Qee6 Qee5 Bb6 Bdf2 Ne4 d4 Rb2 d3 Rbb3 d2 Rb2 Rg8 Rbb3 Rg7 Kf8 d1N Be7 Bfd4 Rb2 Rh7+ Kg8 Nde3 Bc8 Bf8 Rbb3 Rh2 Qc4+ Rc2 Qe2 Bh6 Be6 Qff6 Beg4 Qff5 Rb2 Nd5 Qc4 Nh4 Nc6 Rc3 Ba7 Ne3 Rb7 Ra2 Bb6 Rcc2 Qe2 Nhg2 Nb4 Qh7+
bbB3qN/b2bb3/Pn1r1p2/Q2NRK2/2k1nRN1/6Q1/3Brr1q/N5nQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 h4 g5 a5 b5 d3 g3+ Kf3 b3 h5 b2 e5 g4+ Ke4 f3 d6 g2 e6 b4 e7 b3 e8Q g3 a6 f2 d7 Rh6 Na3 b1B Rh3 b2 Bd2 Rd6 h6 Be7 h7 Nf6+ Ke5 Ne4 h8N f6+ Kf5 c6 Ne2 g1B Rh2 g2 Qg6 Qg8 d4+ Kd5 Rh6 c5 Nc2 c4 Qg3 c3 Rh4 Kc4 d5 Ba2 Qe1 b1Q Rf4 Qb2 Rc1 Bh2 Na1 g1N Bh3 c2 Nc3 f1R Bg4 Bb7 d8N Nd7 Ndf7 Re8 Nh6 Rf2 Bh3 Bb3 Ng4 Ba4 Rb1 Qa2 Rb5 c1B Qd1 Nb6 Qe1 Rd7 d6 Ba8 Re5 Bb2 Nd5 Bd4 Qb1 Rdd8 Qe1 Bd7+ Re6 Bdc6 d7 Bd6 Qh4 Nf3 Qh1 Qb1 Nc7 Neg5+ Rfe4 Nc8 Nh6 Qb8 Nd5 Ng1+ Kg4 Bc5 Re7 Ba7 R7e6 Nb6 Re7 Bd6 R7e6 Ba3 Re7 Qh2 Qg3 Bd6 Rf4 Bdb8 Re3 Re4 Re1 Bc5 Re3 Be7 Re1 Rc8 d8Q Na4 Qa5 Nb6 Re2 Rd8 Re3 Rd6 Re1 Rd4 Re5 Re4 Kf5 Qc8+ Kg6 Bb5 Be6 Qg8+ Kf5 Bbc6 Bc8 Ba4 Rf3 Ree2 Ng4 Ne4 Rf4 Bd7+
Nq1KQbR1/r3B3/pQqP1Qqk/b2b3r/R3n3/4qn2/5R2/qn1RN2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 Kf7 e4 Kg7 d4 c3 b4 a6 g4 f3 d5 f4 d6 c4 g5 h3 g6 c2 b6 c3 b5 h4 b7 f2 b6 h2 Bg2 f1Q Qd5 f3 Qa2 f2 Bg5 c1B Qa3 h3 Nf3 c2 Nbd2 Qe8+ Be7 Nf6 Ne1 Kh6 g7 Nbd7+ Ke6 Ra7 b8R Qg6 g8R Bb7 Nc4 Bd2 e5 c1Q Qf3 Ne4+ Qf6 Ba5 Ra4 Qe3 Re8 Ba8 b7 Qg1 b8Q f1N Qb6 Nfd2 Rc8 Nb1 Rc5 Rh7 Rd5 Bb7 Rd1 Qf1 Rg1 h1Q Rd2 Qff3 Rf2 h2 Rgf1 Qg1 Bh1 Ba8 Qc6 Qgg2 Nb6 Qd1 Qb5 Qdc1 Rg1 Qc6 Qb2 Bb7 Na8 Qf1 Qb6 Qfb5 Nc2 Qb2 Rd1 Qa1 Bf3 h1Q Ne1 Qf1 Bh1 Qfb5 Qd8 Nb6 Qc7 Nc4 Qb6 Ncd2 Nc7 Qcc3 Na8 Qd5+ Kd7 Nf3 e6 Qb5+ Kd8 Bd5 Qc7 Qb7 Qb6 Rh8 Rd3 Qcc6 Rd1 Bg7 Bf8 Rh7 e7 Rh8 e8Q Rh7 Be7 Bf8 Rfd2 Rf7 Qe5 Rf5 Rf2 Rh5 Qf6 Qb8#
n6n/2Qn2BP/n6K/2Bq3b/1nq4N/1QbR1r1p/b2r2R1/1q1NkBBR w - - 0 1 illegal: No proof kernel
N2r4/1B1kPq1b/qnR4q/2Q1qR2/1K2pnqb/3n1R1Q/5r2/2NbBRQ1 w - - 0 1 illegal: No proof kernel
bR2b2N/3rQ1bp/1n2b1Nb/bP1q1Q1K/B1Q1r1b1/5R2/RB5k/Rn2n3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kf6 f4 e5 c4 a5 b4 d5 g5+ Kf5 b6 Kg4 b7 Kg3 b5 a4 c5 d3+ Ke3 h3 c6 d4+ Kd2 h2 c7 a3 g6 a2 f5 e3+ Ke1 e4 f6 d2+ Ke2 Nd7 b8R Ra4 f7 Nb6 g7 Qd5 Bb2 Bh3 c8Q Ne7 Qdc1 d1B+ Ke1 e2 Na3 d3 Q8c4 Bb3 g8R+ Bg7 Rgd8 Bh6 f8Q Ra7 Nf3 Rd7 Qf5 Re8 Qc5 Bc4 Bg2 Bb3 Rf1 h1B Ng5 Kh2 Kf2 e1B+ Ke3 d2 Kf4 d1B Nc4 e3 Ne5 e2 Bf3 Ba5 Ng6 e1N Q1c4 Be2 Be4 Bh5 Rf3 B1g2 Bc2 Bh1 Rc1 a1B Ra8 Ba2 Ba4 B1g2 Rdb8 Bb3 Ba3 Bag7 Bb2 Bh1 Nh8 Bf7 Ng6 Be6 Ra1 Bd1 Rg3 Bh5 Rf3 Qd6+ Ne5 Bb4 Bb3 Bef7 R8a2 Ba5 Rf1 Ba8 Rf3 Qc6 Ba4 Ned5+ Ke4 Re6 Qe7 Nc3+ Ke3 Bg8 Kf4 Be8 Ng6 Qc5 Qd6 Nb1 Qe7 Bf1 Kg4 Re4+ Kh5 Be6 Nf7 Bh3 Nfh8 Qc6 Qc3 Qd5 Qc4 Bg4+
r6r/3qp3/Q2R2Q1/3Rb3/r1rNPNrB/1N2k3/1rR1n1bB/b2rRnK1 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 f4 Kf7 Kf2 Kf6 b4 Kf5 c4 Ke4 h4 a5 e3 d5 f5 g5 h5 a4 f6 d3 b6 d2 c5 a3 h6 a2 f7 d4 b5 d3 b7 Nf6 h7 Bg7 f8N Nc6 b8R Bb7 b6 Nd4 c6 Ne2 c7 Qd7 c8R Nd5 Nf3 g1R Rh6 Be5 Qf1 d1R Ne6 Rd2 Nf4 Rb2 Rc2 d2 Rd8 d1R Nd4 Rh1 Re6 Rh4 Rd6 g3+ Kg2 Bc6 b7 g4 b8B Bb7 Bd2 Rc1 Be1 Bc6 Rd2 Rc4 Rc2 Bb7 Qg1 Rca4 Kf1 g2+ Kf2 Bc6 Qf1 g1R Bc7 Ng3 Qa6 Nf1 Bb8 Nc3 Bc7 Rg8 h8Q Ne2 Qh6 Rh8 Qh5 Rgh1 Kg2 g3 Qg6+ Qf5 Bb8 Rg4 Rd5 R1h4 R8d6 Rc4 Na3 Bb7 Nab5 Bc6 Rac1 a1B Nb3 Bb7 N5d4 Bc6 Qf6 Qd7 Bf2 Nc3 Kg1 g2 Re1 Bb7 Bg3 Ne2+ Kf2 g1R Qh6 Rhh1 Bh4 Ra4 Qf6 Rc8 Qh6 Rcc4 Qg6+ Qf5 Rc6 Rc3 Bg3 Bd6 Rb5 Rh3 Rb1 Rh7 Bh4 Rcc4 Rbc5 Nh2 Rf1 Nf3 Nh5 Rh8 Rd1 Bh2 Be5 Re1 Rd6 Nd2+ Bf4 Kd3 Ra5 Bh1 e4 Bg2 Rad5 Qd7 Rdc1 Nf1 Be5 Bf4 Rb1 Bc1 Bh2 Bf4 Rbc1 Be5 Rb1 Nc3 Kg1 Ke3 Rbc1 Rd1 Nf4 Rd3 Nfe2 Rd2 Re1 Rd1 Nf4+ Ne2+
2kn2qK/1q6/2n3R1/2RnNrBQ/1N1rbQ2/R1b1pB2/P2qRB2/r2r2b1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 e5 f4 c5 g4 h5 d4 b5 f5 b3 g5 h3 f6 h2 d6 h4 d5 c4 g6 b2 g7 b4 f7 b3 Bg2 c3 Qh5 c2 Nd2 b1N Qe2 h3 Bf3 b2 Nf1 Nc6 Qb5 Nh6 g8R Ra5 Rg6 Nc3 Bd2 c1R Be1 b1Q Bf2 Qb4 Qc5 Bg7 f8Q Rd1 Rc1 Bb7 Qf4 Qg8 Qb5 Kd8 d7 Nf7 Rc2 Rh4 Re2 Kc7 d8B+ Kc8 Bg5 Nfd8 d6 Ba8 Qd5 Qb7 Qdf7 Bf6 Qh7 Ra1 Qh5 Nd5+ Kd2 e3+ Kd3 Qb2 Ke4 Qd2 Kf5 e4 d7+ Kb7 Bg4 Bc3 Nf3 Bd4 Rg1 h1R Ne5 h2 Rg3 Rg1 Bf3 h1Q Nh2 Rg4 Nd3 Rgd1 Nb4 Rh4 Ng4 Ba7 Re1 e2 Ne5 Bd4 Bg2 Kb8 Ra3 e3 Bf3 Bc3 Rg1 e1B Rg2 Qf1 Rh2 Qa6 Rg2 Qb7 Rh2 Nf7 d8R+ Kc7 Rd7+ Kc8 Rdd6 Nfd8 Rg2 Nf6 Rd5 Rb5 Rc5 Nd5 Bg1 Bg3 Re2 Bh2 Bf2 Bg1 Ra7 Nb6 Kf6 Rg4 Ra3 Rh4 Qh2 Rd4 Qf4 Nd5+ Kf5 Nb6 Ng4 Qa7 Rd5 Ne7+ Kf6 Qc7 Re5 Be4 Rd5 Qb7 Rf5 Qb3 Kg7 Nec6+ Kh8 Ra5 Rc5 Qe6 Rc4 Rf5 Ne5 Nd5 Rc5 Qg8+
N2r3b/5r2/1QNkB3/5b1b/n2B1q1K/P1nBRr1p/RQ4q1/n2b1BqQ w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 b5 g4 c5 e4 h5 a3 f5 e5 b3 d6 h3 d5 b4 g5 h4 g6 f3 g7 b2 Be2 f4 Nd2 b1Q Rh2 c4 Rh1 c3 Bb2 b3 Ne4 c2 Qd3 c1N Bf1 h2 Qd4 h3 Qa7+ Qc7 Ng5 Rh7 Ne2 Nf6 g8B Rf7 Bh7 Bg7 Nd4 Bh8 Bhd3 Na6 Qb6 Nc5 Nc6 Na4 Bd4 b2 Ne6 Nb3 Ra2 Na1 Qb5 Qb8 Nc7 Qc1 Qb7 b1B Qb2 Bc2 Rg1 h1B Rg3 Ra5 Na8 Ne4+ Kg1 f2+ Kh2 Bd1 Re3 f3 e6+ Ke8 e7 Nec3 Kg3 Bf5 Kh4 Kd7 Qb5 Qg8 Qb2 Qg1 e8B+ Kc8 Qc2 Raa7 Qb2 Rad7 Re2 Rd8 Re3 Rf8 Bf7 Kd7 Bg2 f1Q Bg8 Qe2 Bf1 Rf6 Bf7 f2 Be6+ Ke8 d7+ Kf8 d6 Bf3 Ba7 Rf7 Bc5 Bh5 Bd4 Re8 d8Q Qed2 Qa5 Rd8 d7 Qe2 Bg2 f1R Qd5 Rf3 Bf1 Qeg2 Qe4 Re8 d8Q Qcd2 Qdd5 Rd8 Qa5 Ke8 Qab6 Qc1 Na5 Ke7 Nc6+ Kd6 Qf4+ Be5 Qh2 Qcd2 Qh1 Bh8 Re2 Qh6 Re3 Qf4+
n3B3/Q2rR1b1/QKbb1n2/1Qr1N1N1/1B2RPn1/3Rq2r/p1kqb1R1/5q2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 a5 c4 e5 b4 h5 g5 Kf5 g6 d5 c5 e3+ Kd3 e2 b6 e1B b7 e4+ Kc2 d3+ Kb3 d4 Ka4 e3 Kb5 Ke4 g7 d2 c6 h3 c7 h2 Bg2+ Kd3 Nh3 e2 Ba3 h4 Ng1 h3 Qa4 d1N Bf1 Bg4 c8R Nf6 g8Q Bc3 Qd5 Bd6 Qc5 Nf2 Rc7 Na6 Kb6 Rc8 b8Q Bh5 b5 N2g4 Bg2 e1Q Nd2 Qe3 Re1 Qd7 Qac4+ Kc2 Bc6 d3 Ngf3 a4 Ne4 d2 Rhg1 d1R Ne5 h1B Qa7 h2 Bb4 a3 Ng5 a2 Rg2+ Rd2 Rb7 Nc7 Qf1 Qd8 Be8 Rh7 Qc4 Rd7 Rd1 Rf2 Rd3 Rd2 Rg1 Bc6 Rg2 h1Q Qa6 Qf1 Qb3+ Kc1 Qba4 Kb1 Qa7 Kb2 Q4a6 Kc2 Rf2 Re7 Ka5 Na8+ Q6b6 Re2 Rh2 Bg2 Rd4 Bf7 Nc4 Ne4 Rd1 Bc7 Ka6 Bg7 Qg6 Rf2 b6 Rf3 Qb5 Rh3 Rd6 Bb8 Rc7 Bg8 b7 Bh7 Rcd7 Rc5 Rd4 Bc7 b8R Rf7 Qgb6 Nef6 Rb7 Bd3 Ne5 Be2 Qa5 Bgf3 Rg2 Bc6 Re4 Re7 Rd1 Qdd4 Qa3 Bd6 Rc7 Qdc3 Rd3 Qcd2 Rd7 Nc7+ Kb6 Re6 Rf7 Re7 Q3a6 Rd7 Re7 Na8+
1n2n2r/BR1Q2nq/2N3B1/5B1Q/K2R1pNN/r1q1r1Pb/3q3b/k1b1Nn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 c4 Ke5 Kc2 f5 Kb3 a5 e4 d5 c5 h5 c6 d3 c7 Kd4 b6 a4+ Ka3 d2 b7 f3 e5 h3 e6 h2 e7 h4 e8N h3 Bc4 f2 Qe1 d1N Qe7 f1N b5 Nde3 b6 Bh6 Ng7 Nf6 Qe6 Ne8 Qc6 Qf6 Kb4 a3 Nd2 a2 Nh5 Ra3 Bd3 Rb3+ Ka4 Be6 Qd6 Kc3 c8B d4 Rb1 a1B Qd7 Bf4 Ngf3 Bb2 Be4 d3 Nh4 Ba3 Ndf3 d2 Bc2 d1Q Ne1 Qd2 Bd3 Qg7 Nf6 Bb2 Rg1 h1R Ng4 Bh2 g3 f4 Bg6 Nf5 Rg2 Qf6 Re2 Nfg7 Re4 Rg1 Rd4 Ba3 Rb2 Rg2 Rb1 Re2 Rb2 Re3 Rb1 Na6 b8N Qe5 Nc6 Nb8 b7 Qc5 Nd3 Kc2 Bb2 Qcc3 Ba1 Bc1 Bb2 Na6 b8Q Bf5 Qe5 Nb8 Qb5 Be6 Qh5 Bf5 Ra1 Be6 Ra2 Kb1 Ba3 Bf5 Rb2+ Ka1 Be7 Bg1 Bf8 h2 Bc5 h1Q Ba7 Bh2 Ne1 Qe4 Ba6 Qe7 Bd3 Qf7 Be4 Qg8 Bb1 Qh7 Bd3 Be4 Bc2 Bg2 Bcf5 Bh3 Rd5 Rb5 Rb4 Rb7 Rbd4 Rb1 Rb5 Rb3 Rb7 Ra3+
6q1/k2Nn3/bbqbR3/8/Q1NP1RK1/Rq1B2QN/1pNn3B/rnr1r1q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 b5 e4 h5 a4 f5 g4 c5 d6 Kc6 a5 Kb7 e5 c4 e6 b3 d7 c3 a6+ Ka7 d3 b2 e7 c2 e8R b4 g5 b3 g6 h3 g7 h4 Ra3 h2 Re7 h3 Ne2 Nf6 g8Q Nc6 Bd2 c1B Rf7 Ne7 Qg7 Ne4 Bc3 Nd2+ Kf2 f3 Kg3 f4+ Kg4 f2 Rf6 f3 Ng1 Qb6 Be2 f1Q Rf4 f2 Be5 Qd8 Qc2 Qd1 d4 f1R Qc4 Re1 Qa4 Rh6 Qg8 Rc6 Bc7 Qc2 Bd3 Qe8 Qg5 Qg6 Bd6 Qg8 Qg7 Bb7 d8N Bc8+ Ne6 Qc4 Nc3 b1N Nd5 b2 Ne3 Qb3 Nc2 Bb7 Nc5 Rc7 Ne2 Rcc8 Rhf1 h1Q Nd7 h2 Ng1 Qc6 Nh3 h1Q Rf6 Rc7 Re6 Qg1+ Bg3 Nc4 Rf3 Bd2 Rf4 Ba5 Qg5 Bb6 Qg6 Qgh1 Bh2 Ncd2 Qg5 Ng6 Qe5 Bd6 Qe3 Qg1+ Qg3 Rf8 Rfe4 Rff1 Rf4 Ka8 a7 Ba6 Ne5 Kb7 a8N Ka7 Nc4 Rc8 Nc7 Ra8 Ne8 Rc1 Nf6 Rfe1 Nd7 Ne7+ Kh5 Rf8 Rh4 Rff1 Rf4 Nc3 Kh4 Ra1 Kh5 Ncb1 Kh4 Rc1 Kh5 Rfe1 Kh4 Qd8 Kg4 Qg8+
1Rqr1k2/3B3q/2NK1rRN/5q2/2P1Q2r/2r2BQn/1p1N1B2/1nb1nBbb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 h5 Kf3 d5 Kf4 b5 Ke5 d3 a4 d4 g4 b3 f4 b2 c4 d2 a5 b4 a6 h3 f6 h4 g5 b3 f5 h2 g6 h3 g7 d3 a7 Bb7 Qg4 d1Q Qd4 d2 Ra5 Nc6+ Ke6 Qf3 Be2 d1R Rc5 Rf1 Qg4 Ne5 Rc8 Nh6 g8B Nhf7 Bf4 Bh6 Rc6 Nd3 Be3 Ne1 Qe4 Kf8 Bf2 Bc1 Nd2 b1N Rd6 Qg4 Ngf3 b2 Ne5 Rh4 Nc6 Ng5+ Kd5 e5 f7 Qb8 Rg6 Qc8 Kd6 Rb8 Rg1 h1Q a8B h2 Rg3 Nh3 Rb3 Rg1 Bf1 Rg3 Ne7 Bd5 Nc6 Rc3 Rb4 Rb7 Rb5 Ra7 Rb8 Qh5 Bh7 Q1f3 Bb7 h1R Bg8 Qe8 Bc8 Qh7 Bd7 Qc8 Rf6 Kg7 f8N Qg4 Ng6 Qgh5 Qg2 e4 Qg3 e3 Nge5+ Qg4 Bge6 e2 Nf7 Kf8 Rg6 Qf3 f6 Qf5 Nh6 Rd4 Be8 Rf7 B8d7 Be4+ Bd5 Rh2 Rb5 Bh1 Rb8 Rh4 Bf3 Rg2 Qf4 Rgg4 Qg5 Re4 Qg2 Re8 Qg3 Rd8 Bb6 Rg7 Ng4 Kg8 Bd4 Ng2 Bg1 e1B Bc5 Bf2 Nh6+ Kh8 Ba7 Bg1 Bf2 Ne1 f7 Qb5 Ng8 Qa5 f8Q Qg5 Qe8 Rf7 Re6 Kg7 Nh6 Qgg6 Rf6 Qg5 Qee5 Kf8 Qe4 Qgf5 Rg6 Rf6+
n1qR3R/Rb2q1R1/nK3B1N/1Q2B1qQ/2PrrrB1/b2nq2p/2N3b1/6k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Kf6 e4 Ke5 b4 a5 c4 h5 g5 d5 g6 f5 g7 a4 b6 a3 b7 h3 b5 a2 b6 d3 Qe2 Kd4 e5 h4 e6 h2 e7 h3 e8Q d2 Kf3 d1Q Qh5 Qd3+ Kf2 f3 Ba3 f4 Qe7 Nf6 g8R Na6 b8R Bb7 Qg5 Ne8 Qg4 Rh4 Qe2 Qe7 Qge6 Nec7 Rg7 Qe3+ Ke1 f2+ Kd1 f3 Kc2 Rf4 Qd7 Ra7 Bg2 f1B Qb5 f2 Bf3 Bg2 Bg4 f1Q Bb2+ Ke4 Ra8 d4 Nf3 d3+ Kc3 Qg1 Nd4 Qc1+ Kb3 d2+ Ka4 d1R Nf5 Rd4 Rd1 h1N Ka5 Nf2 Nh6 Nd3 Re8 Ra8 Na3 Rad8 Nc2 R8d5 Ra8 Re5 Ra7 Re6 Rb1 Qd2+ Bc3 Qc1 Rb4 a1Q+ Ra4 Qaa3 Bb2 Qac5 Rb4 Bc8 b7 Qd2 b8B Bb7 Bc3 Qf5 Rb3 Re5 Kb6 Qc8 Qf2 Qc1 Qh4 Qcd2 Bd7 Kf3 Qh5+ Kf2 Bg4 Ree4 Ba1 Ne6 Be5 Nec7 Ra3 Qc1 Rd2+ Kg1 Ra8 Nab4 R3a7 Nba6 Bb2 Qh4 Ba1 Ba3 Bc3 Qe7 Ba1 Qf5 Rh8 Qc8 Rf8 Rd5+ Nd4 Rf1 Rh8 Q3g5 Bf6 Ne5 Be2 Rff4 Nc2 Rd7 Rd5 Nd3 Bae5 Qe1 Bg4 Qe3+ Rc5 Rdd4 Rd5 Qg6 Rd7 Qg5 Rdd8 Na8+
b5bR/1Rr4B/3qn3/3Rr1B1/Kp1r3Q/RPNQ2nr/nq1Q3b/3qN2k w - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 a3 b3 exf6 Qc2 f5 Qc3 f4 Qb2 axb2 Kd1 Kd7 Kc2 Kd6 g4 Ke5 d4+ Ke4 a4 f5 g5 c5 a5 h5 a6 b5 g6 h3 a7 b4 g7 f3 d6 f2 d5 c4 d7 h2 e3 h4 d6 c3 Ra5 f4 Na3 b1Q+ Kd1 c2+ Kd2 f3 Nh3 Nf6 g8Q Na6 Qg3 Qb2 Rg5 Nc5 Nb5 Rh5 Rd5 Re5 Nf4 h3 Nd3 Nh5 Ne1 Ne6 Be2 Qe7 d8Q f1Q d7 f2 Bd1 Bh6 Qh4+ Bf4 Bg4 Rb8 a8R Qd6 Ra3 Ng3 Bh5 Rb7 Bg6+ Nf5 Qdg5 Rc7 d8Q Ba6 Rg1 h1R Bh7 h2 Qgh6 Bb7 Rg7 Ba8 Qg6 Qg1 Qgg3 f1B Re7 Rc6 Rb7 Rc7 Qgh3 Bc4 Qf1 Qg6 Qe2 Ng3 Nc3+ Kf5 Qf1 Rg1 Qd7 h1R Qe2 Rh3 Qd3+ Ne4+ Ke2 Rg4 Qdd8 Bh2 Bd2 Bb5 Bc1 Bd7 Qd2 Be8 Kd3 Bf7 Qd7 Bg8 Qdd8 Rg7 Kc4 Ng3+ Kb5 Rd4 Ka4 Rc7 Qd3+ Ne4 Bd2 c1N Qd7 Na2 Bc1 Qe7 Qd2 Qg5 Qb5 Ng3 e4+ Kf6 Qa6 Qh5 Qad3 Qd1 Qg4 Qf4 Qh5 Rg5 Qh4 Qd6 e5+ Kg7 Qhf4 Kh6 Qfe4 Kh5 Qh1 Ng7 e6 Kg4 e7 Re5 e8R Ne6 Reb8 Bf7 Rh8 Bg8 Qb5 Ne4 Qd7 Kg3 Qd3+ Kf2 Bg5 Ng3 Qhe4 Kg1 Qh4 Kh1 Qd2 Ree4 Qb5 Re2 Qbd3 Re5
Qqr1k2b/1B2rN1K/1B1R1Q1N/2q5/P1nbR3/2rB1b2/2Q1p2n/2bB1q1n w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Ke2 g5 Ke3 d5 h4 e5 c4 b5 f4 b3 a4 b4 c6 d4+ Kd2 g3 f5 e3+ Kd3 g2 Ke4 b2 f6 e2 h5 e1B c7 d3 c5 g4 h6 d2 h7 b3 c6 g3 Na3 b1R Nf3 g1B Rh4 b2 Ba6 g2 Bd3 Bh6 Bf1 Ra7 Qc2 d1N Nb5 Nd7 Kf5 e4 Kg6 e3 Bd3 Bb7 c8B Nb6 c7 Nc4 Bg4 Qb8 c8B Bc3 Nh2 Nf2 Bd1 e2 Be3 Rc1 Ng4 b1Q Bb6 Bf3 Bb7 Nh1 Ra2 Bhd2 Nh6 Bgd4 Ra3 Qb4 Re4+ Qe7 Ra1 Bg5 Rb1 g1Q Ra1 Qf1 f7+ Kf8 Rb1 Nf6 Nd6 Ng4 Rb5 Qe5 Rd5 Ke7 f8Q+ Kd7 Rc5 Nh2 Qf6 Rc8 Ndf7 Ke8 Rc6 Bgd2 Rd6 B2e3 Ba6 Re7 Bb7 Qc5 Kg7 Rb1 Kg8 Bc1 h8Q Rb3 Qf4 Bg7 Qf6 Bd4 Kh7+ Bf8 Qf5 Rc3 Qhf6 Bg7 Qd5 Qa3 Qa5 Bh8 Qa8 Qc5
2R5/n3RbBn/1b3N2/r3qR2/Pr1r2K1/qB1kpB1Q/2nqb3/3QBN1b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 g4 Kg6 d4 b5 a4 h5 f4 e5 d6 c5 d7 b3 g5 Kf5 d5 b2 d6 h3 g6 h2 g7 h4 Nd2 b1N Qb3 b4 Ra2 h3 Qc4 e3 Kf3 b3 Ra3 b2 Qb4 e2 Rc3 e1Q Qb6 c4 Qb4 Ba6 Rc2 c3 Be2 Nf6 g8B Rh4 Qb3 Na3 Ne4 b1R Bd2 Nh7 Nf6 Nc6 Rb2 Qc7 d8Q c2 d7 c1Q Qc8 Qed1 Be1 Qdd2 Qd1 Nc2 Rb7 Rb4 Bb3 Qa3 Ra7 Bc4 d8R+ Be6 Qd7 Bc5 Rc8 Bb6 Kg3 Qcd6 Bf3 Q6d4 Ra5 Na7 Ne2 Qd5 Rf1 h1B Rac5 h2 R5c7 Qe4 Qd3 Bf7 Re7 Bg2 Qe3 h1B Qd3 Kg6 f5+ Kg5 Rf2 Qd5 Rf1 Rhd4 Qc3 e4 Qd3 Kh6 Kg4 Qe5 Ng3 Kg7 Rf2 Bf1 Qc3 Be2 Nf1 Qdc1 Nd7 Qd2 f6+ Kg6 Qd3 Nb5 Qe3 Ra5 Qc3 Na7 Qe3 Bd5 f7 Bdc4 f8B Bf7 Kh3 Kf5 Nf6 Na1 Bg7 Nc2 Qd3 Kf4 Kh4 Rdc4 Qd7 Rd4 Qe6 Qac1 Qh3 Qa3 Nh2 Ke3 Kg4 Kd3 Nf1 Bc7 Rh2 Bd8 Rf2 Bb6 Kh4 Nc6 Bh5+ Ne3 Rf5 Na7 Bf3 Nc2 Kg4 e3+
K3Rr1Q/2R3Rn/N2R1b2/q5pb/1P1Q1n1b/1rqq2N1/1k2Br2/2rQ2Bn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 h4 d5+ Kb3 a5 Ka4 g5 b4 f5 c4 f3 e4 g3 c5 f2 c6 g2 c7 d3 b6 Kd4 Kb5 f4 b7 a4 Kb6 a3 h5 d2 e5 f3 h6 a2 h7 Ra3 e6 Rb3 Ka7 Nc6+ Ka8 Ne5 b8R Nd3 e7 Bg7 e8Q Nf6 Qde1 d1Q Qg6 Rf8 h8Q Nf4 Qh3 Bg4 c8R Nh7 Qh2 Bh5 Qee8 Bf6 Rc7 Qd3 Be2 f1R Qa4 f2 Na3 Qc3 Bd2 Rc1 Qg7 f1R Qh3 Qd7 Re8 Rf2 Qh4 Qb5 Qh8 Qbd3 Rb1 a1Q Rb2 Qc5 Be3+ Kc3 Rd2 d4 Rd1 Qa2 Nb5+ Kb2 Rg7 Qa3 Nc7 Qa5+ Na6 Qc3 Qd7 d3 Qhg4 d2 Qd4 Bf7 Rh6 Bh5 Re1 d1N Qgd7 Be5 Rd6 Bf6 Rc8 Qf5 Qd8 Qaa5 Rcc7 Qh3 Bf1 Qhf5 Ne2 g1B Ng3 Qd3 Be2 Rf1 Nf5 Nf2 Ng3 Nh1 Bf2 Bh2 Bg1 Rf2 Bg4 Ka1 Re8 Kb1 Be2 Kb2 Ne4 Bg3 Qd7 Bh4 Ng3 Qg6 Qd1 Qgd3 Qg4 Nh3 Qd4 Nf4
1b1b1BQ1/b2q1nB1/4B3/npK1R3/2NB2b1/4N2P/Q2rqqr1/1nRN1r1k w - - 0 1 illegal: No possible last move
2qB2Q1/3nQ3/1b2Q2p/3nqKn1/q4bP1/N1Qrbb2/B1N1k3/1rRN1rR1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Ke6 c4 Ke5 b4 a5 f3 d5 b6 h3 b7 h6 c5 a4 b5 a3 b6 h2 c6 e3 Kd3 Kf4 c7 e5 Nc3 a2 Bb2 e4+ Kc2 e2 Bh3 Ke3 f4 e1Q f5 d3+ Kb3 d4 Kc4 d2 f6 d3 f7 Bc5 f8Q Nd7 Kd5 Ngf6+ Ke6 Nd5 b8Q Bb7 c8Q Ra3 Rc1 a1B Qe8 Rf8 Nb5 Rf1 Qcc7 Qc8 Qc2 d1Q Qc3 Qa4 Bg2 Rb3 Nh3 Ke2 Qc6 d2 Rg1 d1R Nf2 h1N Qe7 e3 Na3 Rd3 Nd1 Nf2 Kf5 Rb5 Qce6 Ne4+ Nf2 Bc6 b7 Ng5 Qa8 Bb6 b8N Rb3 Na6 Rb5 Nb4 Bb7 Qb3 Bc6 Bf6 Be5 Qc4 Bf4 Nbc2 Rb1 Nd1 Qc3 Qa5 Qd4 Qac3 Qe5+ Kg6 Nb4 Qg8 Bf3 Qce6 Nd5 Qef8 Nb8 Bd8 Nd7 Qfe7 Be4+ Qf5 Nb4 Qc7 Kd2 Qh8 e2 Qg8 e1B Qc3+ Ke2 Bh1 Ba8 Qfe6 Bed2 Bd5 Bde3 Bc4 Bf3 Ba2 Qh8 Kf5 Nd5 Q6f7 Qhd4 Qfe6 Qe5+
r2rb1B1/B1b2nnq/b3qRNp/1rP3QR/2q2r2/1k6/3Q2RQ/1N2RnK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 g4 Kd5 b6 Kc4 e4+ d3 e5 d5 c3 a5 b7 f5 e6 a4 e7 f3 e8R a3 b5 f4 b6 h3 g5 h2 g6 a2 g7 d4 Qd2 Ne7 g8Q+ Qd5 Nh3 Kb3 c4 Nd7 b8Q Nf5 b7 Ne5 c5 Nf7 Qg5 Qe6 Qg6 Ng7 Qg2 Bd6 Qe3 Rf8 Qe4 d2 Qe5 d1R Qe3+ d3 Qd2 Bc7 Qe1 d2 Qg5 h6 Rg1 h1R Rg2 Bd7 Rd8 Be8 Rd5 Rg1 Bb5 Rh1 Bd3 Rh2 Kf1 f2 Bh7 Rh1+ Rg1 Rh2 Bg8 Rh1 Kg2 f1N Kf2 f3 Nf4 Rh4 Ng6 Rb4 Rg2 Rb5 Rf5 Qc4 Kg1 Qe6 Bb2 Qc4 Bc3 Qe6 Ba5 f2+ Kh1 Qc4 Bb6 Qe6 Ba7 Qc4 Nc3 Qe6 Rc1 a1Q Nb1 Qc3 Qe2 Qd4 Qbd8 Qdc4 b8R Ng3+ Kh2 f1B Qf2 Be2 Rb6 Rf1 Qd5 d1Q Qdd2 Qdc2 Re1 Bd3 Qfe2 Rf4 Kg1 Nf1 Qeh5 Be2 Qh2 Q2d3 Rd6 Qde4 Rdd5 Rd8 Rf6 Ra8 Ne7 Qh7 Ng6 Qc1 Qhh4 Ra5 Qgg4 Bc6 Rd7 Ba6 Qh2 Rb5 Rd5 Rfd8 Rh5 Qcc4 Qg5 Be8
R4Q1r/K2q4/N3PBn1/npn1qNb1/2bbkr1r/1B1R1b2/1R2BR1Q/6q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kd6 e4 c5 a4 f5 g4 h5 a5 b5 g5 h3 a6 h4 a7 b3 g6 f3 Ke3 h2 g7 f4+ Kd3 b2 Nc3 b1Q+ Qc2 f2 Nh3 f3 Ng5 h3 Ra2 Rh4 Na4 Qd7 Rb2 Ne7 g8B Bg7 Be2 f1Q Ne6 f2 Bg5 Nbc6 Bf6 Qfe1 Rf1 h1N Ke3 c4 Nac5 h2 Na6 Rb8 a8R c3 Kd3 Bh8 Ng7 Ng3 Ke3 h1B Qd2 c2 Bf7 Qf5 e5+ Kd7 d6 c1B d5 Ng6 Bg8 Na5 Bf7 Ne4 Kd4 Qg4 Nf5 Bf3 Qf4 Qg1 Qh2 Bg5 Bg8 Qbc1 Bf7 Qc7 Be6+ Ke8 d7+ Kf8 d6 Nc5+ Qf4 Bcb7 Bb3 Bbd5 d8Q+ Kf7 d7 Ke6 Qf8 Bc4 d8R Qa1 Rd1 Qc8 Rd3 Qc6 Rd7 Qc8 Rf7 f1R+ Kc3 Qd7 Kb4 Rf2 Qh2 Qae1+ Rc3 Kd5 e6 Qa1 Rd3+ Ke4 Rbd2 Nab7 Rc2 Qe5 Rb2 Nd8 Ka5 Ndb7+ Kb6 Bg7 Qd6 Rbh8 Qe7 Na5 Qf8 Qdd6+ Ka7 Rf1 Rc7 Qd7 Rb7 Bh5 Rc7 Rff4 Rb7 Bf3 Rc7 Qdd4 Rf7 Qd7+ Nc7 Ncb7+ Ne3 Qc3 Bd8 Bg4 Rd5 Rf6 Rd3 Nc5 Be7 Rf1 Rf5 Be5 Bf6 Qcd4 Rf3 Q4d6 Nf5 Bd4 Ra2 Qe5 Rb2 Qdd5 Na6 Qdd6 Rg3 Rf4 Rg2 Bf3 Rf2 Qd7+
5B2/1n2Kqbk/R2PB1rq/1n2rr1Q/2pnB1QN/q1q2bQb/QR6/4N3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 a5 Kf3 c5 Ke4 f5+ Ke5 Kf7 g4 Kg7 e4 h5 d4 f3 b4 a4 d5 c3 b6 c4 b5 f4 g5 c2 g6 h3 d6 h2 b7 f2 b6 h4 Bg2 f1Q Nf3 a3 Nc3 a2 Rb1 a1Q Bb2 c1N Qd2 h3 Nd5 Qe1 Qc3 Rh6 Ne7 Na6 b8Q Nc7 b7 Ne2 Qa7 Nf6 b8Q Nb5 Qa2 Ra5 Nf5+ Kg8 g7 Kh7 Qb7 Ned4 N5h4 Rg6 Qd7 Qc1 Qca3 Qc3 Ne1 f3 Qg4 f2 Q3b3 f1R g8B+ Kh6 Qba3 Bg7 Be6 Kh7 Bc1 Qe8 Bh6 Qg8 Rb2 Nd7+ Kd5 Rf4 e5 Rf5 Be4 Nc5 Rf1 h1B Rff2 Qc2 Qag3 h2 Rf3 Qd2 Ra3 Bf3 Ra4 h1Q Ra3 Bf6 Bf8 Bg7 Ra4 Nb7 Ra3 Ra8 Ra6 Qc3 Bf7 Rf4 e6 Qa3 e7 Rf5+ Qe5 Qc1 e8Q Qcc3 Be6 Bd7 Nd3 Qhc1 Ne1 Qh6 Qf7 Rf4 Qff5 Re8 Qfh5 Rf7 Qeg3 Rf4 Bf7 Bf5 Be6 Re7 Qgg5 Bh3 Qg5g4 Rf5+ Qe5 Rc7 Bf7 Rff6 Qeg3 Rc8 Ke5 Re8+ Kd5 Ne2 Kc6 Ned4+ Kd7 Re5 Be6 Rff5 Ke7 Qf7#
k1B4N/4BR2/N2PbQ1r/1nbR1p2/1R3Br1/2Q1n1b1/q2BKnr1/qq5q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 Kc7 d4 Kb7 e5 a5 b6 h5 e6 f5 d5 a4 e7 c3 e8Q h3 g5 c2 b5 a3 g6 c4 g7 h2 Qde2 a2 Q2e5 f3 Q8e6 h4 Nc3 h3 Nge2 f2+ Kd2 Ne7 g8R Na6 Nf4 Rh6 Q6f6 Nc7 Ne4 c3+ Ke2 Ra4 Nc5+ Ka8 Bd2 c1Q Rg4 c2 Ng6 Be6 Rb4 Qb1 Qc3 c1B Na6 Ba3 Rg1 h1Q Nh8 h2 Rg7 Qc8 Bg2 f1R Rf7 Rg1 Bf3 Qb8 Be4 Qb2 Rd1 a1Q Bg2 Qba2 b7+ Ka7 Rf4 Bc5 Rb4 Bf2 Be4 Rg2 Bd3 Qe8 b8B+ Ka8 b6 Nb5 Bd6 Qb8 b7+ Ka7 Rbb1 Rag4 Rb4 Bg3+ Ke3 Nc6 Be7 Na5 Be4 Nc4+ Kf3 Qe8 b8B+ Ka8 Bbf4 Qb8 Bd3 Ne3 d6 Bg7 Qg5 Bd4 Qf6 Bc5 Bc4 Na3 Bb5 Qb6 Bd7 Nb5 Bc8 Qb8 Be1 Qb6 Rd5 Qb7 Bd2 Qhb1 Bd8 h1N Be7 Nf2 Ke2 Qh1 Rd3 Qe4 Rd5 Qeb1
2B1qnr1/2N1B1Q1/Q1bpq1R1/BBR1nP1n/n5N1/b1Q5/1q1K2br/1r4k1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Ke6 g4 Ke5 c5 h5 c6 a5 f3 d3 b6 Kd4 b5 e5 g5 h3 g6 e3 b7 e2 b6 e4 c7 d2+ Kf2 e1N Ke2 h4 f4 a4 f5 a3 g7 h2 Nc3 a2 Na4 e3 Nc5 h3 Qc2 d1N Na4 Nf3 Qc6 Nf6 g8Q Nh5 Qf6+ Ne5 Qgg7 Nb2 Bd2 Qe8 Nc3 Na4 Nd5 Ba3 Rc1 a1Q Rc5 Qb2 Nf3+ Ke4 Ke1 e2 Rg1 h1B Nh2 Bg2 Ng4 Kf3 Ba5 h2 Qfg6 h1R Qe6 Na6 b8Q Bb7 c8B Bc6 Qc7 Nb8 b7 Rh2 Qef6 Rg8 Qb6 Qe6 Nc7 d6 Qa6 Nbd7 b8B Qe8 Ba7 Rb8 B7b6 Qb3 Kd2 Nf8 Ne6 Kg3 Bd8 Qb6 Be7 e1Q+ Kc2 Qe3 Nc7 Qb2+ Kd1 Qh6 Bb5 Rb6 Qfg5 Qe6 Qc1 Qbb3+ Kd2 Qb1 Nf6+ Kf2 Qc3 Qa1 Be2 Rb1 Bb5 Bh3 Rg3 Bhg2 Rg6 Kg1 Ng4 Qb2+
QbQnb1KQ/1B6/1rp2B1B/qn5b/3R2R1/1N6/1N1Pk1q1/2rqbnrQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 a5 g4 f5 b3 f3 g5 f4 g6 c3 g7 h3 b6 a4 b7 c6 Bc4 h2 Nh3 c2 Na3 h4 Bb5 f2 Qf1 f3 Qd1 f1B Ng1 f2 Bd3 h3 Bb2 c1R Nc4 a3 Nf3 a2 Nd4 Na6 b8Q Bd7 Qc8 Be8 Ke6 Be7 e5 Qa5 Rg1 h1Q Rg4 Nh6 g8Q h2 Bf5 Rh7 Qh8 Rb8 Bc3 Qg1 Nb2 h1Q Qf3 Qh3 Qh1 Rg7 Bd3 Qhg2 b4+ Kb6 b5 Kc5 b6 Bh4 b7 Be2 Bf5 f1N Nb3+ Kb5 Bd4 Nf7 Be3 Bd1 Bh6 Be1 Kf6 Nc7 e6 Rg8 e7 Nd8 Rb1 a1B Be6 Ra8 b8B Ra6 Ba7 Rg5 Bd4 Rb6 Bc4+ Kb4 Ba6 Nb5 Bb7 Rg7 Rg5 Bdh5 Rg4 Qe3 Qa8 Qee2 Qc8 Qd1 Qa8 Beg6 e8Q Bf7 Qe6 Be8 Qec8 Rg8 Ke7 Rg6 Kf8 Rg7 Na4 Kc4 Bf6+ Kd3 Nb2+ Ke2 Rd4 Rg3 Rg4 Rcc3 Kg8 Rc1 Nd3 Bc3 Nb2 Be5 Ra1 Bb8 Ra4 Qe4 Rc4 Rg1 Rd4 Qg2
3Qb1rk/Q2nNQ2/rPn3RN/q2R3b/1B2n1Q1/6rp/2K2q1b/qr1BN3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 e4 h5 c4 f5 b4 Kf7 g4 Kg7 b6 d5 b7 h3 g5 h2 e5 h4 g6 d3 b5 a4 e6 d4 e7 f3 e8Q h3 c5 a3 c6 a2 c7 f4 Nc3 f2 Qf3 Bd7 c8Q Nc6 b8Q Qa5 b6 Bd6 Ba3 Ra6 Qed8 Nf6 Re1 a1Q Re4 Be8 Be2 f1R Qf2 f3 Bb4 Rg8 Qe1 f2 Qa7+ Kh8 Re5 Nd7 Nf3 Rg1 Bd1 f1Q Rd5 Rg3 Rg1 h1N Qee7 Nf2 Qf7 Qg2 Ne1 Bb8 Nb1 Ne4+ Kc1 d2+ Kc2 Qf2 Nc3 Nf8 Qg4 Nd7 Rd6 Bc7 Nd5 Bb8 Ne7 d3+ Kb3 Bc7 Rd5 Bd6 Be2 d1R g7+ Kh7 Bf3 d2 Kc2 Rb1 Bd1 Rg2 Nc8 Bh2 Ne7 Rg3 Rg2 Rf8 g8N+ Kh8 Nh6 Rg8 Qgf4 Rd3 Rg6 Rg3 Bf3 Qg2 Qg4 d1B+ Kd3 Be2+ Kc2 Qf2 Bd2 Bf1 Bd1 Be2 Bb4 Qf4 Qg5 Bh5 Qg4 Qf2+
3nBKR1/1QBbB1P1/B6b/1pnb1nQ1/3q2Nr/N1qkN3/3rq2R/b4r2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 a4 b5 d4 f5 g5 c5 a5 f3 a6 h3 d6 b3 a7 h2 g6 f4 d7 h4 Ke6 f2 Kf7 b2 d5 f3 d6 h3 Bf4 Ne7 Ra5 Nbc6 Bg2 f1Q e4 f2 e5 Rh4 e6 Qe2 Nf3 Nf5 e7 f1R e8B Bh6 g7 Qf6+ Kg8 Qd4 d8Q Bd7 Qg5 Rd8 a8N Qc3 Qb3+ Kd3 Kf8 c4 Na3 b1N Nb6 Nd2 Nd5 Ne4 Ra8 Nc5 Qa4 Qd4 Ne3 c3 Qa6 c2 Qb7 c1B Rb8 Bb2 Ne5+ Kd2 Bg3 Ba1 N5g4 Kd3 Be5 Rc8 Bf6 Nd8 Be7 Rc6 Bd5 Ra6 Bc6 Ra4 Rc8 Rb4 Bd5 Rb2 Be6 Rd2 Rb8 Bc6 Bc8 Bd5 d7 Be6 Rg1 h1B Rg2 h2 Rf2 Bc6 Rg2 h1Q Rh2 Bed5 Ra8 Nf7 d8B Qhf3 Bc7 Nd8 Qb8 Nb3 Ba6 Bd7 Qb7 Nc5 Ng2 B7e6 Bd7 Nf7 Ke8 Ke4 Rb8 Qfc3 N2e3 Kd3 Bc6 Bc8 Bd7 Nd8 Bc6 Nde6 Kf7 Bd7 Rg8 Bc8 Be8 Nd8+ Kf8 Bd7
1n2qn2/1B4pn/2q2RqN/4K1B1/r2rRNb1/2br1PB1/2kBQ3/Q2b1r1R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 h4 Kf5 b4 d5 h5 a5 h6 e5 c5 g3 h7 d3+ Ke3 g2 b6 d4+ Kd2 a4 b7 e3+ Ke1 Ke4 c6 e2 Kd2 e1N c7 a3 b5 a2 b6 Ra4 Rh6 Qd7 Nf3 g1Q Bg2 Qc6 Rf6 Bg4 c8Q Ne7 Qe6 Ng6 Qe8 Rg8 h8R Ba3 Rh2 Bb2 Rh4 Nf8 Bh1 Rh8 Nh2+ Qg2 Qe6 Rh5 Qc4 Rf5 Qc3 Rf3 Qe2+ Re3 Kd1 Nf3 Bd2 Ng5 Qc1 Nbd7 b8B Bc3 b7 Ngh7 Bd6 Nb8 Be7 Kd5 Bd8 Kc4 Ke1 Kb3 Be7 Bf5 Ng4 e4 Nh6 Qg6 Kf1 Bg4 Kg2 Rf3 Bd8 Rf4 Kg3 e3 Qcf1 Kc2 Bf3 Na6 b8B Re4 Bf4 Nb8 Bg5 Rf4 Bd5 Re4 f3 Rf4 Ba5 Re4 Be1+ d2 Qh1 d3 Qg1 Qc5 Bb7 Qc6 Bf2 Red4 Qge1 Bh3 Re4 Bf5 Kf4 Bg4 Q2f1 d1R Qfe2+ d2 Bg3 Rd3 Qg1 Rad4 Ke5 Rf1 Bb4 Kc1 Qh1 d1B Qg1 Be1 Bd2+ Kc2 Qeg2 e2 Nc3 Qf7 Nd5 Qg6 Rb1 a1R Nf4 Raa4 Q2h2 Rdc4 Qd4 Rcb4 Qa1 Rbd4 Bc1 Bc3 Bd2 e1Q Qg2 Qe3 Qh2 Be2 Re1 Bd1 Qe2 Rf2 Rg1 Rf1 Rh1 Qc4 Rh3 Be6 Rh1 Bd5 Kd6 Qb5 Re7 Be6+ Bd5 Qee4 Re8 Bg4 Re7 Qef5 Re4 Qfd7+ Ke5 Qc4 Ba8 Qcc6 Bb7 Qde8+
3QnrR1/2rnnqpq/B1PBk1b1/4b3/3RNbNr/3r2qN/R4KQR/8 w - - 0 1 illegal: No possible last move
3q2B1/2Rbbp2/n1Q3q1/KRRNR1B1/Nr1bn3/1Q2Pkn1/1n1r4/2rqB3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 c4 Ke5 b4 Ke4 g5 d5 b6 h5 e3 a5 c5 a4 g6 h3 g7 f3 b7 f2 c6 h4 b5 h2 b6 h3 c7 d3 Kc3 a3 Qb3 d2 Ne2 d1Q Bd2 a2 Nf4 Kf3 Bd3 f1R Be1 Bd7 c8Q Ra4 Qc6 Rb4 Bh7 Nf6 g8R Na6 b8B Be7 b7 Rg1 Rg5 Ne4+ Kb2 d4 Ka3 d3 Rc5 d2 Bg8 Rh6 Nc3 Rd6 Rc1 a1B Na4 Bd4 Nd5 Rf1 Rg1 h1Q Rg5 h2 Re5 Qg1 Bc7 h1N b8R Qg4 Rbb5 Qg6 Ba5 Rg1 Bh4 Nhg3 Bg5 Qe2 R1c4 d1N Rc3 Nb2 Rc2 Rc4 Be1 Qd1 Rc3 Rg2 Rc2 Rd2 Rc1 Rf6 Rc3 Rf4 Rc1 Rc3 Rc2 Nc7 Kb4 Rc4+ Ka5 Na6+ Qb6 Rb4 Rc7 Rh4 R2c5 Rhh2 Qd6 Rc2 Qb6 Rhd2 Qc6 Rc1
1B3nQQ/1K3pqB/B1Rr1Rqb/1r1nbq2/r2N1P1k/3r4/QBb5/4N2n w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 h5 Ke3 e5 c4 Ke7 g4 Kf6 d4 Kg5 f3 a5 b6 a4 c5 a3 d5 b3 b7 a2 c6 b2 d6 h3 d7 h4 c7 h2 Be2 h3 f4+ Kh4 g5 Rh6 g6 Ra4 g7 Ne7 g8B Nd5+ Kd2 e3+ Kd3 e4+ Kc2 Qf6 Kb3 Qg6 Bd3 e2 Nd2 e1Q Bh7 b1R+ Bb2 e3 Qc2 Qeg3 d8Q+ Q3g5 Ba6 e2 Qc4 e1B Ne2 Bf5 c8Q Nd7 b8B Q5f6 Rf1 h1R Nd4 h2 Rf3 Rf1 Rc3 h1N Rc2 Bg7 Qh8 Nf8 Qe2 Bf2 Rc6 Rfd1 Qd8 Bd3 Qde8 Qff5 N2f3+ Kh3 Ne1 Kh4 Qc8 Be3 Qg8 Bd2 Qh8 Bc3 Qc2 Be5 Qg2 Be4 Qe2 Bb4 Kc4 Bc2 Kb5 Rd3 Rf6 Ba3 Kc6 Be7 Kb7 Bb4 Ba3 Rbb3 Rb1 a1Q Rc1 Qc3 Bb2 Be7+ Rb6 Rb5 Qg2 Bg5 Qc4 Qh5 Qa2 Rd6 Qg1 Bh6 Qgg8 Rc5 Rc6 Qhg6 Rb1 Qd2 Rd1 Qdg2 Rd2 Qg1 Rg2 Qg7 Rg6 Rca5 Re6 Q1g6 Rf6 Rb5+
2k2b2/2rNPr1q/1qRb2Q1/2Q1rR2/q3B1RK/B2pQ2n/R2n3n/2N2b1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 h5 c4 d5 b4 Kd7 e4 f5 g5 h3 g6 a4 c5 f3 Kg3 f2 g7 d3 e5 h2 b6 f4+ Kh3 h4 b7 d4 b5 a3 b6 a2 Nc3 f3 Ba3 d2 Bb2 d3 Qc1 d1Q Qg5 Nh6 g8R Na6 b8R Rh7 b7 Nb4 Qf4 Ra5 Ne4 Qb6 Qe3 Qa4 Rg4 Nd5 Bg2 f1N Ba3 f2 Ne2 Nd2 Nc1 f1R e6+ Kd8 c6 Rff7 Rd1 h1N Nc5 Rc7 Re1 Rhf7 Rf1 Bd6 Nd7 Nf4+ Kh2 h3 Be4 Rg5 Ra8 Ra5 b8Q Re5 Ra6 Bf8 Qa7 Bb7 e7+ Kc8 Qc5 Ba8 Qd6 Bb7 Qg6 Ba8 Rb1 a1B Rb2 Bb7 Rc2 Bc3 Rf3 Bb4 Ra2 Bd6 Rf1 Nf2 Kg3 h2 Kh4 Nh1 Rf3 Nh3 Rf5 Ba8 Rg3 Ng4 Rg1 Qb2 Qe3 Qb6 Rg3 N1f2 Rg2 h1Q Rg1 Nh2 Rg4 Ra7 c7 Bd5 Bg2 Be6 Bc6 Bd5 Ba8 Bg2 Bf3 Bf1 Be4 Qbd4 Rc6 Qb6 Qc5 Qg2 Qd4 Nh1 Qe3 Qf3 Rg2 Qf4+ Rg4 Qh6+ Qh5 Rd5 Rcc2 Qh7 Qhh6 Kb7 Qh5 Ka6 c8Q+ Rb7 Qc3 Rc7 Qb4 Kb7 Rc6 Re5 Qbc5 Kc8 Qhh6 Qg7 Qg6 Qh7+
RK3Rb1/2N1p3/r1rNB2B/2qQn1r1/3qb1nP/R5N1/1R1bn3/3k1qnQ w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 h4 Kg6 f4 Kh5 c4 a5 b4 g5 b6 d5 b5 d3+ Ke3 d2 Kd4 a4 Kc5 e3 b7 d4 b6 a3 f5 e2 f6 e1Q f7 a2 Kb5 d3 c5 Nc6 b8R Qf2 b7 Ra5+ Kc4 Qdd4+ Kb3 Nh6 Qc2 d1B Bf4 g3 Rh2 Kg4 Bd2 g2 Ra8 Bf5 b8Q Be4 Qb7 Ne5 Ne2 Kf3 c6 g1N c7 g4 c8N g3 Nd6 g2 Nbc3 Nhg4 Nd5 Bh6 Ng3 Rc8 Nc7 Ne2 Qd5 g1N f8R+ Bf4 Be3 d2 Bh3 Qc5 Rg2 Qf1 Rh2 Ra6 Rg2 Rc6 Ka4 Rb8 Qcb3 Rb5 Rh2 Bc2 Rg2 Bd3 Qb1 Bc4 Qe1 Nh6 Be6 Nhg4 Rc1 d1R Rc3 a1Q+ Ra3 Qad4 Rh2 Ra1 Qb1 Nc1 Rb2 Ra2 Bd2+ Kf2 Be3+ Ke1 Bd2+ Kd1 Be3 Bf5 Qbe4 Nce2 Qh1 Be4 Bc1 Bg5 Bd2 Bf6 Bh6 Bg5 Bc8 Nef3 Qe6 Ra1 Raa2 Qf5 Qe5 Rb7 Ka5 Bg8 Be6 Ra7+ Kb5 Bd2 Ra4 Rac1 Ra3 R6c5+ Kb6 R1c3 Nd5 Ra6+ Kb7 Rca5 Kb8 Rcc6 Nc7 Qg5 Qc5 Qgd5 Nc8 Q5c4 Qd6 Rg5 Qd5 Nfe5 Nd6 Qcc5
k1r3N1/2RP3b/1bnpqB1K/1qBN3n/2B1N1Q1/n5nr/R2brq2/1N3Q2 w - - 0 1 illegal: No proof kernel
rN1n1b1K/q1P2N1r/2n4p/Q4R2/R2q1nB1/r2N1Nb1/1Bb1k3/RQ3nq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 b4 f5 g4 d5 c4 Bd6 c5 a5 b6 Ra7 b7 h3 c6 f3 g5 f4 c7 f2 g6 h2 g7 h6 Kg6 f3 b5 d3 b6 d2 e3 a4 Nh3 d4 Bc4 f1R Ra3 f2 Rc3 d3 Rg1 h1Q Ba2 a3 Bf7 a2 Be6 a1B Qh5 d1N Nf4 d2 Ra3 Nc3 Qc5 Kf3 e4 d1Q e5 Bd7 Nd3 Ke2 Nd2 Qa4 Nf3 Nd5 Qb5 Rh7 Bg4 Ra8 e6 Qa7 e7 Bg3 Qa5 Ba4 e8N Bc2 Nd6 Nf4+ Kf7 Bd4 Ra4 Ne7 Ba3 Ra1 Bc1 Rh8 g8R Bg7 Rf8 Rh7 Ba3 Ra2 Ra1 f1N Bc1 Qg1 Ba3 Nec6 Kg8 Ne5 Bc1 Qd7 Rf5 Bf8 Nf7 Rg7+ Kh8 Qdd4 Ba3 Ne6 Bc1 Nd8 Ba3 Nbc6 b8Q Qc4 Bc1 Ra3 b7 Qc3 Qc8 Qcd4 b8N Bh2 Qb7 Bg3 Nc5 Nd3 Qb1 Nf4 Bb2 Bd1 Nd3 Bb3 Rb4 Bc2 Ra4 Rh7+
1Bkr1bNB/P3q3/r6r/1BqQ4/6rq/n2KbQp1/R4RbR/1n1n1RN1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 d4 g5 Kd2 c5 e4 f5 h4 b5 d6 f3 d5 b3 e5 b4 h5 f2 a5 f4 a6 b2 h6 g3 h7 c4 a7 f3 Qb3 c3+ Ke3 c2 Bh3+ g4 Ra3 f1R Qa2 f2 Ra5 b3 Qa1 g2 Na3 b1R Qc3 b2 Nb5 Ra1 Kd3 b1N Bf4 c1B Rh2 Qe7 Nd4 Be3 Nf5 g3 Ra2 Nf6 Nh6+ Ng4 Ng8 Bb7 e6+ Kd8 d7 Nc6 Bd6 Na5 Bb8 Nc4 Qf6 Nca3 Qf3 Nh6 Bg4 Nf5 Bh5 Rc1 Be8 f1Q+ Ne2 Qh4 Qg4 Beh6 Bf4 g1Q Ke4 Bc5 Rd2 Bc8 Qf3 Qgf2 Ng1 Bcf8 Re2 Qc5 Ref2 Qfb5 Rf1 Qd6 e7+ Kc7 d8R Qc5 Rff2 Nc4 Bb5 Nfe3 e8R Bh3 Re5 Qde7 d6+ Kb7 d7 Ra6 Rf1 Bg2 Rc8 Qb6 d8Q Nca3 Rc2 Qbc5 Ra2 Rc4+ Kd3+ Re4 Rff2 Nd1 Qd5+ Kc7 Rf1 Rd8 Re6+ Kc8 Bb8 Rc4 Ree2 Rg4 Ref2 Be3 Nh6 Rhg8 h8B R8g6 Ng8 Rh6
1q1K2b1/pr2QB1n/n2RR3/b5qr/2BR4/2kBN2B/P4QqN/2nq1rb1 w - - 0 1 illegal: No possible last move
1QN1QBBb/Nnr2Rn1/b2qB2r/Qb1Q2pP/n7/b7/R2K1b2/rk5b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 h5 f5 c5 g5 c6 d5 c7 g3 b6 g2 b5 f3 b7 f2+ Kd2 a4 b6 f4 Rh4 a3 Qe2 a2 Qf3 d3 Rh1 Kd4 e5 Ne7 e6 Rh6 Nh3 g1B Qg3 f3 Qh2 Nf5 e7 Nd7 e8Q Ng7 b8Q Ra7 b7 Nc5 Qe7 Qd6 Kd1 d2 Bc4 f1B Ba3 f2 Qg3 Bg2 Qb3 f1B Qe8 Bf2 Nc3 Bd7 c8B Bb5 Rh2 Bh1 Qc7 Ba6 b8Q Nb7 Rb1 a1B Be6 Be2+ Kc2 d1N Kd2 Nb2 Qa5 Na4 Nb5+ Ke4 Qd1 d4 Nf4 d3 Nd5 Be7 Nb6 Be5 Kc1 d2+ Kc2 Bb2 Nc8 Bef6 Bb4 Ba3 Rb3 Ba1 Rf3 Bf1 Rf7 Ke3 Qg4 d1R Qf5 Bc3 Qd5 Ra1 Bd3 Bf6 Bh7 Bc3 Bg8 Bd3+ Kb3 Kd2 Rg2 Kc1 Rh2 Bfe1 Ra2 Kb1 Bc5 Bf2 Bb4 Ra8 Nba7 Bdb5 Bc5 Nf5 Bb4 Bh8 Bc5 Ng7 Bb4 Nb6 Kc3 Na4+ Kd2 Qd8 Bf8 Qd6 Nc6 Ra7 Qad8 Nbc5 Qa5 Rc7 N6a7 Nb7
1r1qBk1B/rn5r/NN2r2n/NK1p1b1r/1r3QRQ/N6n/1P3Qb1/2R3b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Kc4 f5 g4 d3 e4 a4 g5 a3 g6 f3 e5 h3 c3 h2 b6 d5+ Kb5 f4 c4 f2 e6 h4 c5 h3 b7 d2 c6 a2 g7 f3 c7 Rh5 e7 Nh6 g8Q Nc6 b8Q Bf5 c8N Na5 Na3 Nb7 Qa4 d1N Qbf4 Rb8 Qg2 Bg7 Be3 Bd4 Bc4 f1B Ne2 f2 Rc1 a1R Rg1 h1R Nb6 h2 Bd2 Kf7 e8N Kf8 Nc7 Bc5 Qgf3 Bg2 Nd4 f1R Bc3 Re1 Nc6 Re6 Na5 Nf2 Na6 Nh3 Bh8 Be3 Qf2 Bd4 Rge1 Rg1 Re2 h1R Re4 Bc5 Rd4 Rd1 Re4 Rd4 Q4h4 Ra2 Rg4 Rf4 Bf1 Be3 Qd4 Rfe4 Qf4 Bg1 Qdf2 Ra1 Be2 Ra4 Bd1 Rd4 Ba4 Rc4 Nc7 Rb4+ Ka6 Ng8 N3c4 Rb1 Nb3 Rhh6 Qhg3 Ng5 Be8 R1h5 Qh3 Rh7 Qhh4 Ra4+ Kb5 Nh3 Rc2 Ra7 Na6 Rd1 Rc1 Nh6 Nba5 Rd4 Na3 Rb4+
bQ1qkbrr/5bQ1/Q2QP1p1/K4nr1/n3bN2/4R1BR/b1r3B1/Br5N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 c4 a5 h4 f5 e4 d3 Kc3 g3 b4 g2 c5 a4 e5 f3 h5 d2 c6 a3 c7 f4 h6 a2 b6 f2 b5 g6 h7 f3 b7 d4+ Kc4 d3 b6 Bf5 Kb5 Be4 c8Q Nh6 Bb2 Nd7 b8Q Nc5 b7 Na4 Rh5 Nf5 Nh3 g1R Bg2 f1R Nc3 f2 Nf4 Rg8 Rb1 a1R h8Q Ra2 Ba1 Rc2 Nce2 Re1 Ng3 f1B Qg7 Be2 Nh3 B2f3 Rb3 Ref1 Nh1 Re1 Qc1 d1B Qa3 d2 Qad6 Bde2+ Kb4 d1B Nf4 Bc4 Re3 Bf7 e6 Bde2 Rh7 Bc4 Rh3 Ba2 Qc4 Rec1 Qa6 Rce1 Qba7 Rac8 b8B Rh8 Qc7 Rb1+ Ka5 Ba8 Qcb6 Bfe4 Bc7 Rg8 Qb8 Rh8 Bf3 Rg4 Bg2 Rg5 Qe2 Qd7 Qc6 Bc5 Nd3 Ke7 Bg3 Rcg8 Nf4 Qd8+ Qcb6 Bd6 Qa6 Ke8 Q6c7 Bf8 Qcb6 Qc8 Q6d6 Qd8+
k2r1Q1B/Nb1Bb2p/r3R3/8/rrbq2Bb/Q2N3K/1bN1BnP1/1n1r3R w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 c4 b5 f4 d5 Kf2 Kd7 Kg3 Kc7 a4 Kb7 a5 e5 g6 d3 c5 d2 g7 d4 f5 b3 f6 b2 f7 b4 Bd3 e3 Bc2 d3 Ra2 e2 Qe1 d1R Na3 b1B Bd2 b3 Bg5 e4 Qc3 e1B+ Kh2 e3 Rb2 e2 Qf6 d2 Bf5 Nc6 Qd6 Nce7 Bd7 Nf6 g8B Ne4 Bf6 Bd3 Kh3 Bc4 Nf3 Nd5 Nc2 Ra6 c6+ Ka8 c7 Ndc3 Qa3 Nb1 Ne5 Bb7 c8N Bh4 Nd3 e1B Na7 Be7 f8Q Rc1 Be5 d1R Bge6 Bc3 Bg4 Rg8 Ra2 b2 Bh8 Be5 Nde1 Rd4 Nd3 Rd1 Be2 Nbc3 Beg4 b1R Rb2 B5f6 Rb6 Rb4 Rd6 Nb1 Re6 Rdd6 Be2 Bb2 Bg4 Ra4 Be2 Rab6 a6 Rb3 Nc8 Qb6 a7 Qd4 Bg4 Rbb4 Be2 Bbd5 Bg4 Rda6 Be2 Kb7 a8B+ Kb8 Bg4 Bb7 Na7+ Bc8 Rc6 Ned2 Qf1 Re8 Rg6 Rd8 Baf3 Bb7 Re6 Ne4 Be2 Ka8 Qf8 Nf2+
3BB1k1/2Rr1N2/5q1b/RKr2rrn/N3n1Q1/4Bp2/b2PbQb1/B1nb2R1 w - - 0 1 illegal: No possible last move, all moves rejected
n1B1B1bn/r2rb3/K1N1n3/2B3N1/kr1N2q1/2P1RQQ1/1n1p1Nbr/4Rn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 e4 Kd7 b4 h5 g4 a5 e5 a4 g5 h3 c3 a3 b6 Kc6 e6 Kb5 e7 f3 e8B+ Qd7 g6 f4 b7 h4 g7 h2 Be2 h3 Qe1 f2 B8h5 f1N Qf2 f3 Bd2 a2 Qh4 f2 Bhf3 Na6 b8N Ra7 Qe7 Qg4 Qf7 Rh4 Qe7 Nc7 Qe4 Be7 Nc6 Ka4 b5 Na8 b6 Be6 b7 Nh6 g8Q Nf7 b8N Nh8 Be3 Nd2 Qgg6 Nb3 Nd2 f1N Re1 a1R Bg2 Rc1 Ndf3 Bg8 Ng5 Rh7 Qd6 Rb1 Qf3 Rg7 Qdg3 Nc5+ Kc2 Rd7 Ba6 Ne6 Kd3 Rb4 Bc8 Rf7 Bf2 Rh7 Re3 Rf7 Ne2 Rg7 Rg1 h1B Ne5 h2 Nbc6 Ra7 Bh3 Bg2 Bd7 h1R Be8 Rh2 Rh1 Nd2 Re1 Nf1 Bg1 Qf4 Ng4 Rd7 Nf2 Qg4 Nc1 Ra7 Nb3 Rh7 Kc2 d3+ Kb2 d2 Ka2 Rf4 Nbd4 Rd7 Kb2 d1N+ Kc2 Ra7 Kd3 Rg7 Nb3 d4 Kc4 d3+ Nbd4 Ka3 Kb5 d2 Nfe4 Rd7 Ka6 Ka4 Nf2 Nb2 Nf5 Rb4 Nfd4 Qh5 Bg4 Nf8 Be6 Qg4 Bf5 Rd6 Bfd7 Ne6 Bc8 Rd7 Nd1 Rh5 Nc2 Bd6 Re4 Rb7 Bc5 Rgd7 Nf2 Rh2 N2d4 Be7 R4e3 Ra7+
3rQ1B1/4nNb1/kN1B1r1R/2KR2q1/2n1R2p/1b2b2b/nr1rb2P/Q4Q1Q w - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Kf2 Kd7 d4 Kc7 g4 Kb7 c4 f5 c5 a5 g5 e5 d5 h5 d6 h4 b6 e3+ Kf3 a4 d7 a3 g6 e4+ Ke2 f3+ Ke1 e2 Kd2 e1B+ Ke3 b3 Kd4 f4 g7 a2 Bd2 f2 Nf3 b2 Bb5 f1B Be2 e3 Ng5 f3 Qc1 f2 Nc3 b1R Nf7 Bh3 Na4 f1B Bc4 e2 Bf4 Ne7 g8Q Rh6 Qg1 Rb2 Bd6 Bd2 Bb3 e1R c6+ Ka6 b7 Bg5 c7 Bg7+ Kc5 Nbc6 b8Q Nb4 Nb6 Be2 Qf1 Rd1 Be6 Bb7 c8Q Rdd2 Qc6 Rf6 Qb1 Qg8 Qe8 Rd8 Rg1 B5h6 Qh1 Bd5 Rg4 Bb3 Re4 Bg5 Qbd1 Bf4 Rc1 a1N Rcc4 Nac2 Qa1+ Na3 Bd5 Rb8 d8R Na2 Re6 Bg5 Rce4 Nc4 Rd7 Rf2 Rh6 Rd8 Ne5 Rf6 Bf7 Qh7 Bg8 Qg6 Nf7 Bf4 Be5 Qg3 Rd5 Qg5 Bd6 Be3+
1NR1N1R1/r3r2K/Q1b1rb2/nNB1rnn1/k2b2rp/3B1N2/3P1qn1/2B4Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Kg4 c5 Kf5 h5 e4 a4 g4 h3 b4 f3 b6 Kc6+ Kf4 Kb5 e5 f5 e6 a3 g5 f2 g6 h2 b7 h4 g7 a2 e7 Rh7 Kg5 f4 Kg6 f3 e8N Qd4 Ne2 c3 Nf4+ c4 Ne6 c2 Nc5 Ra7 Bb2 c1R Ba3 Be7 Qc2 Re1 Qc1 Nc6 b8Q+ Bb7 Rg1 h1R Rg3 Rg1 Rg5 Nh6 g8N Re5 Nb3 Bf6 Qd6 Ka4 b5 c3 b6 c2 Bd3 f1N Ne7 Na5 Nc6 f2 Nb8 Bc6 b7 Rhe7 Rg3 R7e6 Kh7 Nf7 Rg8 Ne3 Bc5 f1R Na3 Nf5 Nb5 Qf2 N3d4 Rg4 Nf3 Rfe1 Qb1 R1e3 Qh1 c1N Rb1 Ne2 Rc1 a1B Rc3 Bd5 Qa6 Nf4 Ba3 Re1 Rc8 Bc6 Bc1 R1e3 Nd7 R3e4 b8B Ng2 Bd6 Bd4 Nb8 Ree7 Bb4 R5e6 Bba3 R4e5 Bc5 Ng5+
KRqb2Br/b5N1/bN1B4/Bn3bk1/2Pb4/1rnp3R/3Nr3/Q2QnBn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Kf6 h4 a5 e4 g5 c3 d5 b6 a4 b7 d3 b5 f3 Ke3 d4+ Kf2 d2 b6 a3 h5 a2 h6 Nc6 b8Q Nge7 h7 Na7 b7 Nf5 Qh2 Rb8 Qg2 Nb5 Rh5 Nh4 Qh1 Ng2 Nh3 Be7 Ba3 Bf5 Bd6 Ne1 Nf4 Qc8 Ne6 Bd8 e5+ Kg6 Ng7 g3+ Kg1 g4 e6 g2 Kf2 g1N e7 f6 Rh3 Kg5 Kg3 f2 e8B Rf8 Bf7 Rh8 Qa4 d1N Nd2 d3 c4 Ndc3 Rd1 a1B Rb1 Bb2 Qd1 Ba1 Be2 f1B Bg8 Bg2 Bf1 Bc6 Kf2 g3+ Ke3 g2 Rb4 Ra8 b8N Ra2 Rb1 Bb7 Nd7 Ba6 Nb6 Rb2 Bb4 Rb3 Ba5 Bg4 Rb2 f5 Rb1 Na7 Kd4 f4 Ke5 f3 Kd6 f2 Rb2 Bc7+ Kc5 Nab5 Kc6 Bf5 Bf7 Re8 h8B Re2 Rb1 Bb2 Bg8 Ba1 Nh5 Bb2 Be5 Bd8+ Bc7 Ba3 Ng7 Bc5 Na4 Ba7 Nb6 Ngf3 Rb2 g1B Qa1 Bh2 Rb1 Be5 Rb2 Ng1 Qf3 Qe6+ Bd6 Bd4 Rb1 Re3 Qd1 Re2 Bg2 f1R Rb2 Rf4 Bf1 Rh4 Rb1 Rh8 Rb2 Na3 Rb1 Bb5+ Kb7 Ba6+ Ka8 Nab5 Rb2 Ra3 Rb4 Rb3 Nc8 Na3 Rb8 Nab5 Nb6 Qc8
1bQNqnK1/B2B4/1rR1N2r/1r4Qn/B1P2np1/2r1R2b/bk2r2b/2NB4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 b5 e4+ d3 a4 g5 c3 d5+ e6 b3 h5 b2 a5 g3 h6 d4 a6 g2 h7 b4 e5 g4 a7 b3 Ra2 Qe8 Qf3 Nd7 e7 Ngf6 e6 Nh5 Ne2 g1B Ra3 d2 Bh3 d1R Qg2 d3 Nf4 Re1 Be3 Bh2 Qd2 Re2 Bg2 f6 Qc1 d2 Bf3 d1N Bd4 Rb8 a8Q Nf2 Ba7 Nd3 Rd1 Rb6 Nd2+ Kb5 Ra6 b1R Re1 b2 Nb3 Kc4 Qe3 Bb7 Nc1 Bd5 Qc8+ Rc6 Rb6 Bh6 Qe5 Nf8 Qe3 Rc5 Rc6 Bg5 Qd2 Bh4 Qe3 B4g3 Qe5 Ra1 Qe3 b1R Qe5 Ra5 Qe3 Rc2 Bd1 Rb6 Qe5 Rab5 Re3 Qf7 e8B Re2 Bd7 Qe8 e7 Bf7 Ne6 Ndf4 Nb3 Bg8 Re4+ Kd3 Nc1+ Kd2 Re3 Bf7 Ng5 Bb3 Ne6 Ba2 Ke4 f5+ Kd4 Rb3 c4 Rc3 Qg7 Rcb5 Qg5 Rg8 h8N Rg6 Nf7 Rh6 Nfd8 Nh7 Nd3 Nf8 Ne5 Kc1 Nd3+ Kb1 Nc1 Kb2 Qa6 N4g6 Qc8 f4 Ke4 f3 Kd4 Qf7 e8B f2 Ke4 f1B Kd4 Rbb3 Kd5 Ngf4+ Kd6 Qg8 Ke7 Qh8 Kf7 Bh3 Bc2 R3b5 Bd1 Qf6+ Kg8 Qe7 Bg6 Qe8 Bgc2 Ng2 Bb3 Bb8 Ba4 Ngf4
1r1BrBR1/1qNQn3/b5Q1/2k2nr1/R1p5/bnP3RK/2N2b1b/1bN2N1r w - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 Kd7 Kg2 Kd6 h4 f5 b4 c5 d4 a5 g6 e5 c3 c4 d5 g3 h5 f3+ Kh3 e3 b6 g2 g7 f2 h6 f1R b5 e4 h7 f4+ Kh2 e2 b7 e1B b6 a4 Nf3 g1B+ Kg2 a3 Nbd2 a2 Ne5 e3 Nd3 e2 Rh3 Qc7 Rg3 Nc6 b8N Ba6 b7 f3+ Kh3 Nce7 Nc6 f2 b8N Nh6 g8Q Nhf5 Nd4 Bh2 Nc2 Rh1 Nf1 Qb7 Bh6 Rg1 Nc1 Kc5 d6 Rg2 Rd3 Rg5 Qg6 Rg8 d7 Rh8 Nc6 Rb8 N6b4 Rg8 h8R Re8 Rb1 a1N Rg3 Nb3 Ra1 Rb8 Nd5 Re8 Nd2 Rb8 d8B f1B+ Rg2 Beg3 Nc7 e1R Ra4 Bd3 Nf1 Bf2 Rg3 Be4 Qd7 Rd1 Nfe3 Rh1 Nf1 Bd3 Na3 Bb1 Nc2 Nd5 Bg7 Be7 Bh6 Re8 Rg8 Bd6 Bf8 Nde7 Qh6 Kb6 Qh5 Ba3 Qg6+ Kc5
b2bqr2/qb5k/3B1R2/1bNnQ2b/bPB1p2N/rQ1N1QR1/2n1QKq1/8 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kg6 f4 e5 c4 a5 b6 h5 c5 d5 f5+ Kh7 f6 e3 f7 h3 c6 h4 c7 e2 b7 h2 g5 d3 Bb2 a4 Na3 d4 Bg2 h3 Bf3 d2+ Kf2 d3 Nc4 a3 Na5 a2 Qc1 d1B Qc2 Nc6 b8Q Qd5 Nb7 Nf6 Nc5 Ba6 c8N Be7 f8Q Bd8 Nd6 Nd4 Nde4 d2 Nd3 Bb5 Nec5 Ra3 Bg2 Qg8 Bf1 Nd5 Nf3 Qg6 Qf5 Rf8 Rg1 h1B Nh4 h2 Rg3 Bf3 Qf4 h1B Qc4 Bfg2 Qf3 Bda4 Bc1 d1B Bf4 Qg7 Rb1 a1Q g6+ Kg8 Qb3 Nc2 Rc1 Qa7 g7 Qb2 Qd6 Kh7 Qa2 Nd4 Rc3 Qc2 Rg6 Qd2 Rf6 Nc2 Bg3 Qg5 Qc7 Qg6 g8Q+ Kh6 Nc1 Nf4 Qd3 e1Q+ Kg1 Na1 Qgb3 Bh5 Qab2 Qe4 Kf2 Bgf3 Qc6 Kh7 Qdc2 Qe8 Bc4 Bhg2 Qe2 Nc2 Re3 Q4g6 N1d3 Qg4 Qe4+ Qgg6 Qf5 Ba8 Bh2 Bgb7 Rh3 Nd5 Qff3 e4 Bd6 Qg4 Qe5 Qc8 Rg3 Qh3 Ng2 Qh1 Nh4 Qg2+
brB5/b3B1b1/3Q1n1B/1nqn3R/pN1R3P/n1RnQ1r1/2rr2kB/3K1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 b4 Kd6 h4 Ke5 c4 a5 b6 d5 c5 f5 c6 g5 b7 f3 c7 f4 b5 f2+ Kd2 d3 b6 g3 Ba3 a4 Rh2 d4 Be7 g4 Na3 f3 Kc1 Kf4 e5 g2 e6 Kg3 Nh3 g1R Ra2 d2+ Kc2 d3+ Kc3 Na6 b8B Qd6 b7 Nb4 Nc2 Bg7+ Bf6 Qc5+ Kb2 Ra7 Be2 f1N e7 f2 e8R Ne3 Ng5 f1N Re5 Ned5 Ra3 Nfe3 Be7 Ngf6 Nf3 Nc4+ Kb1 Rg8 Rc3 Na3+ Kb2 Ra8 Rh5 Rg2 Rh3+ Kf2 Nh2 g3 Nf1 Bg4 c8Q Bf3 Bbd6 Rb8 Qe6 Rh2 Bf8 g2 Bde7 g1B Qe3+ Kg2 Rc4 Be4 Bg4 Bf2 Bc8 Bg1 Qb1 d1N+ Kc1 N1c3 Rd4 Ncb5 Kd1 d2 Qb2 Nd3 Qb4 Nbc7 Qb6 Ncb5 Nb4 Bf2 Qd6 Bg1 Ke2 d1R Rf3 Rc1 Kd2 Rc2+ Kd1 Bh8 Bh6 Rg3 Rc4 Bg7 Rf4 Ra8 b8B Bf2 Bc7 Rb8 Rc3 Qc4 Qe1 Ba7 Qe3 Qc5 Rg4 Nb6 Rf4 Ba8 Rd4 Nbd5 Qd7 Kh1 Be5 Rhe2 Qd6 Kg2 Bef4 Rg5 Bh2 Rg3 Qde5 Rf2 Qd6 Rfd2+
R4brB/3b1k1n/q1bnNb1R/5np1/1bN2rBR/r7/N1Q1P1KQ/4r1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 b4 f5 c4 d5 h4 g5 h5 f3 h6 g3+ Ke1 f4 b6 g2 Kf2 d3 c5 d2 b7 a4 c6 a3 c7 d4 b5 d3 h7 a2 b6 Kf7 Rh3 Nd7 b8R Ra3 b7 Ndf6 Bb2 Bd7 c8Q Ne8 Qa4 d1N+ Ke1 Qa5+ Qc3 Ne3 Kf2 d2 Qcc2 d1R Rh6 Qa6 Nc3 Nf5 Ra8 Ngf6 b8N Re1 Nc6 Ned6 Na5 Rg8 Nc4 Bc6 Rc1 a1B Na2 Bd7 Be5 Bc3 Rd1 Bb4 Rd4 Bc6 Qb5 Bd7 Qb8 Bc6 Nh3 Bd7 Kg1 f2+ Kh2 g1B+ Kg2 Bh2 Ng1 f3+ Kh1 Bc3 Rdh4 Bb4 Bh3 f1B Bg4 f2 Bd4 Be5 h8N+ Ke6 Ng6 Kf7 Qc7 Nh7 Nf4 Bf6 Ne6 Bg2+ Kh2 f1R Bc3 B6e7 Bh8 Bgc6 Qb8 Rff3 Kg2 Bf6 Qc7 Ne4 Qe5 Ned6 Qh2 Rf4+
1Rb2r2/1QB2N2/B2bqR2/1nn1NPN1/2n2k1p/2N1b3/Kn2Brnr/1rQ5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 a5 Kb3 h5 c5 e5 g3 d5 c6 a4+ Ka2 a3 b4 d3 c7 h3 b6 h4 b5 d2 b7 d4 b6 d3 Qe2 d1N Nf3 e3 Nh2 d2 Qg2 e4 Qf2 e2 Qe3 e1B Bg2 Bd6 Bf3 Bf2 Be2 Na6 b8N Nf6 b7 Ne8 Nc3 Qe7 Rb1 Nb2 Nc6 d1N b8Q Rf8 Nf3 h2 Nce5 Nc5 Rf1 h1R Ng5 Nc4 Qb7 Rh2 Qd2 e3 g4+ Kf6 Bb2 Qe6 Qc1 Bg1 Ba1 Ra4 Rb5 Rb4 Rb6 Rb1 f5 Ndb2 Rf2 Bd7 c8B Nc7 Rf1 Nb5 Rd1 Qf7 Ra6 Qd5 Ra8 Qe6 Rb8 Be7 Rd6 Bf2 Bf3 e2 Rb6 e1N Be2 Ng2 Rd6 Kg7 Rc6 Kh6 Rb6 Qg6 Rf6 Bd6 Nh3+ Nf4 Nd1 Nd4 g5+ Kh7 Qa7 Qg8 g6+ Kh6 Nf3 Nbd3 Bb2 Be5 Ba6 Nb5 Qb7 Qe6 g7+ Kh5 g8N Kg4 Bc3 Bd6 Nhg5 Ndb2 Ba5 Bc8 Bc7 Ng2 Nh6+ Kg3 Nhf7 Bd4 Qc2 Kf4 N3e5 Bf2 Ne3 Rf1 Nd1 Be3 Kb1 Rf2 Qc1 a2+ Kc2 a1R Nc3 Nd7 Kb3 Rb1 Ka2 Nc5
1r4RN/n3Q3/Br1r2Q1/1Q1RNp1R/qK3nn1/1bn5/1Q2bP2/r1brB1k1 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 d4 Kd7 Kd2 Kd6 g4 Kd5 b6 a5 g5 f5 b7 e5 c3 h5 g6 a4 g7 e3+ Kd3 a3 Bg2+ e4+ Kc2 h3 Kb3 h4 Qh5 h2 Bf3 h3 Nd2 e2 Qe8 e1R Qf7+ Be6 Qc7 a2 Ne2 Rh6 Ng3 Rd1 Bh5 e3 Ba3 e2 Qb6 e1N Be2 Nc6 b8Q Nf6 g8R Nd3 Nc4 Nf4 Nh5 Ke4 d5 Ng4 d6 Na7 d7 Rd6 Rad1 a1R Qb5 Qa5 d8Q Qa6 Bd3+ Kf3 Qe7 Kg2 Be2 Rf6 Rd5 Bh6 Ne5 Rd1 Kc4 b3 Kb4 b2 c4 b1N c5 Nc3 c6 Bg5 Q8b6 Rb8 c7 Rg6 Bc1 Qa2 c8Q Rf6 Qca6 Rh6 Rd4 Bb3 Rd5 Rhe6 Qd4 Rdb6 Bd3 Red6 Bd2 Bh6 Be1 Ra1 Rf1 h1R Bc4 h2 Be2 Na4 Qb2 Nc3 Bc4 Rg1 Be2 h1B Bd3 Nh3 Nf4+ Kh2 Bc4 Bf3 Nfg6 Be2 Nh8 Bc1 Bd3 Nf4 Bc4 Rg3 Rh1+ Kg2 Rh5 Kg1 Qab7 Rd3 Qc6 Rd1 Qce8 Rf6 Qg6 Rbd6 Qbb7 Rfe6 Ba6 Rf6 Qb5 Rdb6 Rg7 Rfd6 Rg8 Qa4+
n1K5/2R2r2/1QBRr2n/B1NP2k1/1p1NB2b/1Qr2b1r/1Qbnq1b1/rB6 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 c5 a4 b5 d4 b3 e3 h3 a5 h2 d6 c4 Kd5 b4 a6 b2 a7 f3 e4 h4 d7 h3 Be3 c3 Bd3 f2 Ne2 f1N Qc1 c2 Nbc3 b1B Na4 Qe8 d8Q+ Be7 Nc5 Na6 Qb2 Nd2 Rd1 h1B g5+ Kg6 Bg1 c1R Qb6+ f6 Bh2 Bg4 Bc7 Bgf3 Ke6 f5 e5 h2 Ra3 Qb5 Rc3 Re8 a8B Rh3 Bae4 Bc2 Rc4 Kh5 g6 f4 g7 Nh6 g8Q Bhg2 Rc3 Qc4+ Kd7 h1R e6 Bh4 e7 Rf1 Bd8 Nc7 Kc8 Na8 Qge6 Qb5 Qeb3 Kg5 Rc4 Re1 Rc3 Rf8 e8B+ Rf6 Bc7 Re6 B8c6 Qc4 d5 Ra1 Nd4 Re3 Rf1 Qb5 Bf5 Qc4 Bde4 Qe2 Rc4 Rc3 Bg6 Bd1 Bb1 Bc2 Be4 Bh5 Rc1 f3 Rg1 f2 Re1 Qf3 Re2 f1R Rf2 Qe2 Rf6 Re5 Rd6 Rf6 Qb7 Rff3 Ba5 Rf7 Qb6 Bhf3 Be8 Nf5 Na6 Nh6 Rc7 Kf4 Nc5 Re6 Bc6 Kg5
1B3QR1/Qn2Kr1b/B2r2BR/1P2b2n/1q2R1pN/3b1b2/k1n1N3/1br3nR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 c4 g3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 g5 h4 f5 h5 d5 h6 a5 b6 f3 b3 d3 b7 d4 h7 g4 c5 d2 c6 a4 c7 f4 Rh6 f2 Rh3 a3 Qe1 a2 Qd1 d3 Nf3 g2 Nh4 g1N Rh1 f3 Bb2 Bd6+ Kd5 Bf5 c8B Qb6 e5 Ra6 e6 Nc6 b8R Na5 Be2 f1R e7 f2 e8Q Nb7 Qc1 d1B Qce3 d2 Bd7 Bdc2 Be5 d1B Nc3 Ka3 b4 Bc7 Rc1 a1N Rd8 Bg6 Bf5 Bb1 Rb8 Bd6 Ke6 Nf6 Qe7 Qa5 Qa7 Nh5 Rg8 Nc2 Qf8 Qb6 Bc4 Bf3 Re1 Qc5 Re3 Rc1 Re4 f1B Kd7 Bd3 Ne2 Bb8 Bc7 Qa5 Ke7 Rb6 Bb5 Ka2 Ba6 Qa4 b5 Qb4+ Bd6 Rc6 Rg7 Rg8 h8R Rb6 Rh6 Bh7 Bg6 Bc7 Qfa8 Rf8 Rg8 Rf4 Qf8 Rf5 Bc5 Be5 Bd6 Rf6 Kd7 Rc6 Bb8 Rcd6+ Ke7 Rf7+
R4B2/6Q1/1KrnN2n/Rp1R1B2/2Q3bN/1qb1bb1n/PQq1bk2/Qr3b2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 g4 Kf6 d4 Kg5 e4 f5 e5 c5 d6 h5 d5 b5 e6 b3 e7 c4 e8Q b2 d7 c3 d6 c2 Qd5 h3 Nd2 Kh4 g5 b1Q g6 f3 Ke3 Kg3 Kd4 h4 Kc5 f4 g7 f2 Nc4 f3 Bg2 f1B Nd2 h2 Qe7 h3 Qb7 f2 Bd5 Nh6 g8Q+ Bg7 Be6 Qb3 Ba3 c1B Bf5 Be2 Qf6 f1B Qc4 Nc6 Ndf3 Ne7 Ng5 Kf2 Qb2 Bc3 N1f3 Ra6 Rg1 h1B Ne6 h2 Nh4 Bf3 Rg6 h1N Rg8 B1d2 Rd1 Be3+ Rd4 Qe8 d8R Qg6 d7 Rd6 Rde8 Rd5+ Kb6 Rc5 d8Q Bd7 Rd5 Nc8+ Ka6 Nd6 Qf6 Rh7 Kb6 Qg2 Ra8 Qg6 Bb1 Qgc2 Ra5 Rg7 Rga8 Rg1 Nd4 Bg4 Qbg7 Kg3 Bb4 Nf2 Ne6 Nh3 Qfd4 Kf2 Qd1 Qc1 Bf5 Qcc2 Qdb1 B1g2 Q1a1 Rb1 Ba3 Bgf1 Bb4 Be1 Bc3 B1d2 Bf6 Be1 Be7 Bc3 Bf8 Rc6+
nr2br2/Q4B1B/N1n1N1Q1/P3nR2/b1kB1B2/1q3R2/n1p3Rb/4Knqn w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Ke7 g4 Kd6 d4 f5 e4 b5 g5 c5 g6 h5 a5 f3 g7 f2+ Ke2 b3 Bg2 f1Q+ Kd2 b4 Bf3 b2 Rh2 f4 Nc3 b1N+ Kc2 b3+ Kb2 h3 Qc2 h4 Rh1 c4 Na2 h2 Ne2 h3 Nb4 Qg1 Ra3 Nd7 Na6 Nd2 Kc3 Ne7 g8R b2 Rg2 Nb6 Bg4 f3 Nf4 f2 Ne6 f1N Bf5 Nc6 Bh7 Nf3 Bf4+ Nfe5 Qf2 Ng3 Kd2 Nf1+ Ke1 b1N Rf3 c3 Qg3 c2 Qg6 Kd7 d6 Nc3 d5 Na2 Qf6 Rb8 Qg6 Qd4 Rhg1 h1B Rgf2 h2 Rgg2 Ng3 Rf1 Na8 R1f2 Q8b6 Rf1 Nf7 e5 Qb3 R1f2 Bh6 Rf1 Rf8 R1f2 Ke8 d7+ Ke7 d8B+ Kd7 d6 Nf1 Bb6 Bb7 Re2 Qg1 Ref2 Bg5 Bc5 Bd8 Bd4 Bc7 Rg5 Bg2 Rf5 h1N Re2 Bh3 Rg2 Bg4 Bf2 Bh5 Bd4 Ke8 d7+ Ke7 Ng7 Bc8 e6 Nfe5 Rf6 Kd6 d8Q+ Bd7 e7+ Kd5 e8B Ng4 Rf5+ Kc4 Ne6 Nge5 Bf7 Bd6 Qc7 Be8 Qg5 Bd7 Qa7 Bg6 Bfg8 Bge8 Qf6 Ncb4 Bf7 Ba4 Qh6 Nbc6 Qg6 Ng4 Bfe3 Bh2 Bf4 Nge5
R6q/1BQ5/1bb1q1Nr/Pb1rRQ2/1BQN3N/K1nb1p2/Qq1b3k/b4n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 e4 Kd6 h4 Ke5 a5 f5 h5 b5 d6 c5 d7 g5 h6 g3 d3 f3 Kd2 Kf4 d4 g4 e5 c4 h7 g2 Kc2+ Kg3 Kb2 f4 d5 f2 d6 b3 e6 b4 e7 f3 e8Q Na6 Rh6 Nf6 Rh4 Nh5 Nc3 Bg7 Qe7 Nc7 Bg5 Bb7 Qe4 Nb5 Qdb1 Bc6 Bd3 f1B Nh3 g1Q Qa2 Qgb6 Rd1 Kh2 Qe6 g3 Bg6 g2 Bd2 g1B Re1 Ng3 Re5 Rb8 Ne2 Nc3 Qf7 Qf8 Rhe4 Rd8 Qf5 Qa6 Rh4 Bb6 Nd4 Be2 Rhe4 Nf1 Nf4 Qc8 Be1 Qe7 Be8 Qe6 Ng2 Bf6 Nh4 Qb8 Kc1 b2+ Kc2 b1B+ Kb2 b3 Ka3 b2 Bg6 Nd1 Bb4 Bbd3 Bf7 b1Q Rf4 Rhf8 h8N c3 N8g6 c2 Rg4 Rh8 Rg3 Rde8 d8Q Rh6 d7 Nc3 Qc8 Rd8 Qa6 Bg7 Q6c4 c1B+ Qb2 Qe8 Bd5 Bd2 Qba2 Qh8 Rg5 Qd6 Rg1 Qe6 Rg3 Rc8 d8Q Qc2 Qc7 Rd8 Nf4 Bf6 Rg8 Bg7 Be4 Rd5 Ra8 Qb1 Nfg6 Qa1 Qc5 Bdb5 Qc4 Bd3 Nc2 Qb1 Nd4 Rd8 Bc5 Bd5 Nc2 Na4 Bb4 Bb7 Bc6 Rd5 Re4+ Be5 Rf4 Ba1 Nd4 Nc3 Re4+ Kh1 Re5 Kh2 Bd7 B7c6 Bc8 Qc2 Bb7 Qb2+
5K1n/b1R4B/2B1kbqP/Bq2nbr1/2qpQ2b/1N6/rbb1Q1BR/2N2Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 d5 h4 g5 b4 f5 c4 a5 e4 a4 b6 a3 e5 a2 e6 f3 b5 f4 c5 g3 c6 g2 b7 g4 b6 g3 h5 f2 h6 f3 c7 Nc6 b8Q Bg7 b7 Qe8 Nd2 Bf6 Rh2 Ne5+ Kc2 d3+ Kc3 Qg6 Ne2 g1B Kb4 g2 Nb3 d2 Kc5 Rh7 Qe1 d1B Bd2 Bc2 Ba5 Rg7 Rc1 a1B Qd1 Ra7 Qa8 Bb2 b8Q Bd7 c8B Bh4 Bc7 Ra2 Qb5 Kf6 Kd6 Ne7 Ba5 Rg8 Rh3 Bh2 Bb7 g1B Bg2 f1Q Bc6 f2 Qd2 Bf4 Rh2 Be3 Qe8 Bed4 Qdd3 Ba7 Qe4 d4 Ra1 Rg7 Nec1 Qc4 Qa6 f1Q Qb5 Ng8 e7 Be3 Rb1 Bf5 Qf8+ Rf7 e8B Ne7 Bed7 Beg5 Qa6 Bh3 Bf5 Qb5 Qe8 Qfc4 Qe2 Rg7 Bfe4 Qgf7 Bh7 N7g6 Qf1+ Bhf5 Qb7 Ng4 Qee2 Nh8 Qa8 Qg6 Qae8 Rc7 Q8e4 Re7 Ra1 Re6+ Kd7 Ne5+ Kd8 Re7 Rb1 Rf7 Ke8 Rg7+ Kf8 Ke6 Ra1 Bf6 Rb1 Ba1 Rb2 Bd3 Rc2 Bb2 Rc3 Bc2 Q2g4 Qca4 Qge2 Qh5 Ba8 Rg5 Rc7 Qac4 Bc6 Qg6
nk4N1/1q2r1b1/2RK1N1p/2P4n/2B1n1rb/3nrrQR/Q6N/B2NrbQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 b4 Kc7 g4 f5 e4 a5 c4 a4 c5 f3 g5 h3 g6 h6 e5 f2 g7 a3 e6 a2 e7 h2 e8Q f4 Na3 f3 Qde1 Qd7 Nc4 Ra3+ Qc3 Nf6 g8Q Ba6 Na5 Rh7 Qg7 Nh5 Qg2 Re7 Qf7 Bg7 Nc4 Bf6 Qfg7 Bh4 b6+ Kc8 b5 Qb7 Q7g3 Nd7 Ne3 Rb3 Qg6 Kb8 Bb2 Rb4 Rb1 a1B Nd1 Ra4 Be2 f1N Qb3 f2 Qa2 Nd2 Nf3 f1R Qg1 Ne4 Q6g3+ Qc7 b7 Nb6 Bc3 Na8 Rb3 Ka7 b8N Qb7 Nd7 Re1 Nde5 Kb8 Bf1 Rc4 b6 Bb5 Ra3 Bb2 Ra6 Re3+ Kc2 d3+ Kb3 d2 Nc6+ Kc8 Bd3 d4 Bf1 Ra4 Bc4 d3 Bd4 Bc1 Ba1 Bb2 Nf2 Bg7 Nd1 Rc7 Ne7+ Kb8 Ng8 Ra3+ Kb4 Rc3 Nf2 d1R Ka5 Rde1 Nd1 d2 Kb4 Qc8 b7 Ra3 Rd6 Re7 Rc6+ Qc7 Bf7 Bf1 Bc4 R1e2 Kb5 Rg2 Qf4 Rg4 Qfg3 Ka7 b8N Qc8 Nb2 d1N Nd7 Ndf2 Ndf6 Nd3 Nd1 Kb7 Rc7+ Kb8 Kc6 Nd2 Kd6 Qb7 Rc6 Rb3 Q1f2 Ra3 Rg1 h1R Nh2 Bh3 Rg2 Rhe1 Qg1 Rb3 Rf2 Bf1 Rf3 Rb4 Bf7 Rbf4 Bc4 Rf5 Q3g2 Rff4 Rh3 Rff3 Qg3 Ne4+
2qRN2Q/3bKbb1/1r1q1Qp1/2B2Qb1/2Bn2B1/r6R/B1bkP3/br3n1N w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Ke7 Ke3 Ke6 Ke4 c5 d4 f5+ Kf4 Kd5 h4 b5 a4 g6 e6 b3 a5 b4 a6 g3 a7 c3 e7 Kc4 Ke5 c2 e8B g2 d5 b2 d6 f4 d7 f3 Ke6 f2 h5 b3 h6 Ne7 h7 Nf5 Qe1 Ng3 Rh3 Bg7 Bh6 c1B Ra2 Nc6 Nc3 b1R Kf7 b2 Ke6 Bg5 Nd5 Nd4+ Kf7 Kb3 Nc7 Kc2 Qa5 c4 Qf5+ Kd2 Ra3 Rb8 a8B c3 Bd5 c2 Ra8 c1Q Bc4 Rb6 Rb8 Rg8 h8Q Ba6 Ba2 Bd3 Bc4 Bc2 Ba2 Qc8 d8Q Qd1 Qdf6 Bb3+ Ke7 Bf7 Bb5 Rd8 Rh1 Rdd6 Nh3 g1B Bg2 f1B Bf3 Ra6 Nf2 Bh3 Ra8 Ra3 Bg4 Rb6 Ne8 Nf1 Bbc4 Bh2 Rb8 Be5 Rh2 Ra1 Nh1 b1B Ra8 Bc2 Rb8 Rab1 Ra8 Bg2 Rh3 Bc6 Rb8 Bd7 Ra8 Bgf4 Bg5 Be3 Bh4 Bg5 Bf2 Ne6 Bg1 Ba1 Bc5 Nd4 Rb8 Qc6 Rd8 Qc8 Bcb3 Qe1 Bd5 Qg3 Bdc4 Qd6+
1R1N2n1/b2k4/b4Pb1/3rp1NB/Nr2q2b/1R4r1/1Kn1nn1Q/1BBQ1Nn1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 e3+ Kc2 e2 c5 e1B b6 a4 f5 h3 b7 d3+ Kb2 h2 g5 a3+ Ka2 d2 g6 h4 b5 h3 g7 d4 b6 d3 c6 Ra4 c7 Kd7 f6 Bh4 Kb3 a2 Qe1 d1R Nf3 d2 Kb2 Nc6 b8Q Bc5 b7 Ba7 Be2 Nd4 Ng5 Nf3 Rg1 h1B Rg3 Ng1 Bh5 h2 Rb3 Bf3 Qe2 h1N Qh2 Bc6 Qa8 Nf2 b8N+ Kd6 Qb7 Be8 Qf3 Rb4 Nc6 Ba6 c8N+ Kd7 Qe2 Qc7 Nd8 Bg6 Qe1 Qb7 Nb6+ Kc7 Qe2 Qe4 Na4 Kd7 Qf1 Ne2 Qfg1 Nh3 Qe1 Nhg1 Qf1 Ne7 g8B Rh6 Bc4 Ng8 Bd3 Rh7 Na3 Re7 Nc4 Rg7 Rb1 a1N Ne3 Nc2 Qf3 Re1 Nf1 d1N+ Ka2 Nf2 Kb2 Nf4 Qd1 Re2 Ra1 Rd2 Ra2 Nfe2 Ra3 Rc4 Rb8 Rd4 Rab3 Rb4 Bc4 Rd5 Bd3 Ne1 Bb1 Nc2 Ne3 Be8 Nf1 Rg6 Nh3 Rg3 Ng5 Bg6
8/1b1Q3n/qRQr1P2/1n1p1KbN/2Q1n3/N2BrrBk/1b2Rn1n/2QNr3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 e5 c6 h3 b6 h2 b5 e3+ Kd3 e4+ Kc4 a4 Kd5 d3 c7 h4 b7 a3 b6 e2 Kd4 Kg4 Ke5 h3 f5 a2 Qb3 e1N Na3 d2 Rb1 a1B+ Rb2 d1R Nc4 e3 Ne2 Rd6 Nc3 e2 Bf4 Nf6 Na3 Nh7 Qc4 Na6 b8Q Bb7 c8Q Nc7 Qa7 Bh6 Nd1 Nb5 Q8c6 Qc8 Rg1 h1N Rg2 h2 Qc1 Kh3 g4 Rb8 g5 Rg8 g6 Rf8 g7 Nf2 g8Q h1N Bg3 Ne4 Qgc4 Nhf2 Qaa4 Ba8 Qa7 Qa6 b7 Rbc8 b8N Bb7 Qad4 Rcd8 Qa7 Rd3 Qad4 Re3 Qa7 d5 Nd7 Rf7 Nf6 Bf4+ Ke6 Rdd7 Nh5 Nf3 Rb1 e1R Bd3 Nh2 f6 Rfe7+ Kf5 Rd6 Rb3 Bb2 Rb4 Rf3 Rb3 Ba8 Qad7 Bb7 Rb4 Nc5 Rb3 R7e3 Rb4 Nce4 Rb3 Nfg4 Re2 Ngf2 Rb4 Nbc3 Rb6 Nb5 Qg7 Bc3 Qf7 Bb2 Qfd7 Bg5+
RNRrQ2R/3N1b2/1n2pr1b/4nnrq/2NPB1N1/Kr3bQ1/5b2/1r1k2B1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Ke6 b4 Kd5 d4 a5 Kd2 h5 Kc2 c5 Kb2 h3 g5 e3 f5 Ke4 g6 h2 b6 e2 b7 e1B b5 a4 f6 h4 b6 a3+ Ka2 h3 g7 c3 f7 c4 Bd2 c2 Nf3 c1R Rg1 h1B Qa4 h2 Be3 c3 Qb4 c2 Bh6 Bf2 Kb3 a2 Nh4 Nd7 b8N Ra3+ Kb2 Qe8 b7 Nb6 Rg6 Be6 Rf6 Bf3 Ng6 h1R Qa4 Rh5 Be3 Nh6 g8Q Nf5 Bg2 Kd3 Ne5+ Ke2 Nbd7 Rf1 b8N c1N Nd2 Rg5 Ndc4 Bh6 f8R Bf7 Rc6 e6 Ng4 Rd3 Rc8 Rb3+ Kc2 Nd3 Qg7 Bh4 Bg1 Ne5 Rg8 Bf2 Bh1 Rh7 Rh8 Rfb1 Qg8 Rhg7 Qa8 R7g6 Qa3 Rf6 Qd6 Nd3 Qg3 Ne5 Qf8 Bg8 Bg2 Qh5 Qe8 Bf7 Bf1+ Ke1 Bd3 Rb5 Kc3 Kd1 Be4 Rd5 Nf8 Rd8 Nfd7 Rc1+ Kb4 Rb1+ Ka3 Rc1 Rb1 a1R+ Kb3 Ra7 Ra1 Rb7 Ra8 Rb1+ Ka3 Rc7 Qh4 Rc5 Qh2 Rcb5 Qg3 R5b3+
nN2q2N/3Q1n2/rr1Qp2B/P3bbb1/2B4n/1B1K4/3B1brR/RnRb1k2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 a4 Kf6 f4 Kf5 d4 Kg4 a5 Kg3 d6 c5 d7 b5 d5 h5 f5 e3 d6 h3 f6 c4 f7 h2 Na3 b3 Qd5 b2 Qd1 b1N Qc2 c3 Qd2 h4 Kd3 e2 Qd1 Kf2 g4 e1B g5 h3 g6 b4 g7 c2 Qh5 b3 Qg6 b2 Bf4 c1B Bh6 Bg5 Qe6 Qe8 d8Q Ra6 Kc4 Nd7 Kd3 Nb6 d7 Na8 Nc4 Nd2 Nd6 b1N Qd5 Nf3 Ne2 Nh4 Nd4 Rh7 Rg1 h1R Nc6 Rh2 Nb8 Rg2 Rh1 Bc3 Rh2 Be5 Qb6+ Ke1 d8R Bd7 Rc8 Bf5+ Ne4 Rh8 Qd7 Rh7 Qbd6 Rb6 Rh1 h2 Rc2 Rh8 Rg1 h1B Rf2 Nf6 g8B Nh7 Rfa2 Bfg7 f8B Bd4 Bc4 e6 Bb3 Bge5 Be7 Bf2 Rc2 Bge3 Beg5 Ra6 Bf4 Ng5 Rca2 Nf7 Rc2 Bg4 Ng5 Bd1 Rc1 Rh2 Rg3 Rg2 Rh3 Rf8 Rh2 Rg8 Be2 Rg7 Bf3 Kf1 Bfd5 Bd2 Bdc4 Rg8 Nh7 R8g5 Nf8 Rf5 Bg3 Bg5 Ng6 Rf4 Nh8 Rg4 Bb5 Rb4 B5c4 Rbb6 Bf4 Rg4 Ra4 Bc6 Ra2 Rg2 Ra1 Bf3 Be3 Bg4 Bd2 Bf5#
n3n3/N1n4r/q1P1p1QQ/B2Q3R/1bR1nrr1/k4B2/2KNnb2/b3BbQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 d5 g4 Kd7 c4 Kd6 b4 h5 f5 a4 b6 h3 f6 e6 b7 h4 g5 d3 f7 e3+ Kc3 e2 g6 e1B+ Qd2 a3 b5 Kc5 g7 a2 b6 h2 Be2 h3 Bf1 d4+ Kb3 Nf6 g8Q Na6 b8Q Ne8 b7 Qb6+ Ka4 Rh7 Qh8 Bf2 Bg2 Nac7+ Qa7 Bd7+ Ka3 Bb5 Qe1 d2 Kb2 Kb4 b8Q d3 c5 Qa6 Qee5 d1R c6 d2 Qd5 Rf1 Nf3 d1N+ Kc2 Nb2 Nc3 Ka3 Nd2 Bb4 f8B Be2 Rb1 a1B Bf3 Rg1 Qg7 Bf1 Qh6 Rg4 Qbd8 Rb8 Q8g5 Rb5 Bd6 Rc5 Qgh5 Rcc4 Q5g6 Rcd4 Bg3 Rdf4 Rg1 h1N Nb5+ Ka4 Rg2 Nc4 Rh2 Nb6 Bb2 Nba8 Rc1 Rc4+ Bc3 Rcf4 Bh4 Ng3 Qb6 Ne2 Na7 Ka3 Bd8 Be1 Qg1 Bf2 Bh4 Be3 Be1 Bf2 Rg2 h2 Rg3 h1N Rh3 Bbc5 Rh5 Nhg3 Ba5 Be7 Rb1 Bec5 Rb4 Ne4 Rc4 Bb4
k3r1KR/nb4bR/P1Q5/b1pr2n1/1bbNrnr1/3B1NB1/4q3/QN4NQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 g5 e4 f5 d4 b5 h4 g3+ Kf3 g4+ Ke2 f3+ Kd3 f2 h5 f4 e5 f3 Ke4 g2 Kf5 g3 Kg6 b3 Kf7 b4 a5 b2 a6 b3 d6 Bg7 d5 Bb7 h6 Kc8 e6 Qe7+ Kg6 Nf6 h7 Nh5 Bc4 f1B Nh3 g1B Qe1 g2 Rh2 f2 Qe4 Rg8 h8N Nc6 Kh7 Kb8 d7 Na7 d8N Nf4 d6 c6 Bb5 Bc4 d7 f1N Ng6 Bb6 Ne5 g1B Qh1 Bgc5 Ng1 Ba5 Nef3 Ng3 Ra2 Qe8 e7 Bcb4 Ne6 c5 Ned4 Ne4 Rh6 Qh5 Ra1 Rd8 e8Q Qh2 Qe6 Qe2 Qc6 Re8 Ra2 Re5 Ra4 Rd5 Kg8 Ng5 d8Q+ Bc8 Qdf6 Bb7 Nc3 b1R Rh8 b2 Rh7 Ra1 Nb1 Ra3 Bd2 Re3 Be1 Ree5 Bg3 Re4 Nbd2 b1R Ra2 Rf1 Nb1 Rf2 Rd2 Rg2 Rd1 Bb3 Bd3 Bc4 Re1 Rh2 Rf1 Rh4 Rf2 Rg4 Rfh2 Nc8 Rh8 Ka7 R2h7 Rb8 Ne6 Ka8 Qa1 Na7+ Qe8 Bf8 Qc6 Re8 Ned4 Bg7+
5Rq1/B3r2P/N1bq4/bB1n2b1/Rq1q2NQ/q2p2q1/r2BBQ1K/1kn1Q3 w - - 0 1 illegal: No possible last move, all moves rejected
1RQ1r2Q/b1b1rP1B/Nq1r1q2/1bp1R2Q/3bb1R1/3bn1K1/1k2nN1B/R7 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Ke6 Kf2 Kd5 d4 a5 b4 e5 b6 h5 f5 a4 b7 c3 g5 e3+ Kf3 a3 b5 h3 b6 e4+ Kg3 h2 g6 e2 g7 Kc4 f6 e3 d5 a2 d6 h4+ Kf3 h3 d7 c2 f7 Kb3 Bg2 e1B Kg4 e2 Na3 Ba5 Nb5 e1R Bf1 Rh6 Bg5 Qf6 Bf4 Kb2 Nc3 c1Q Be3 Ne7 g8R Qb1 Qd6 Nd5 Bd4 Nc6 b8R Ba6 d8Q Ne3+ Kg3 Bd3 Qd5 Bc5 b7 Ba7 Be5 Nd4 Rg4 c5 Nb5 Bc7 Qh8 Re2 Bf4 Re1 Qh5 Ne2+ Kf2 Rg6 Bg2 Rh6 Be4 Rg6 Bf5 Rh6 Bh7 Rg6 Rf8 Re8 b8Q Rh6 Qc8 Re7 Nf3 Re8 Rf1 h1B Ng5 h2 Nh3 Bhe4 Rfg1 h1B R1g2 Qg7 Bh2 Rd6 Rg5 Bc6 R2g4 Bhe4 Re5 Qg6 Nd4 Qh6 Nc2 Bcb5 Nb4 Re7 Na6 Qf6+ Qcf5 Qc2 Rb8 Qb3 Rd1 a1B Rc1 Nc3 Kg3 Qb4 Nf2 Ne2+ Kh3 Qa5 Qfc8 Qb6 Rd1 Ka2 Rb1 Bd4 Rc1 Kb2 Ra1 Rg1 Rf4 Rg8 Rg4 Qe6 Kh4 Rge8 Kh3 Qh6 Kh4 Qf6+ Kh3 Nf4+ Kg3 Ne2+
1bqrbRKB/3n1P1Q/4B1Qp/1b3b2/R4b1n/2R3N1/bN3r2/kB2nqB1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Ke6 b4 Kd5 f4 Kc4 f5 e5 c3 a5 b6 d5 g5 h3 f6 d3+ Ke3 h6 b5 a4 f7 d4+ Kf2 e3+ Kg3 a3 Kh4 a2 Kh5 h2 Kg6 e2 b7 e1Q b6 e4 Qc2 e3 Bb2 e2 Bg2 d2 Be4 Nd7 b8R d1B b7 Bd6 Kg7 d3 g6 d2 Bf5 Bf4 Na3+ Kc5 c4 Kb4 c5 Ne7 c6 Qf1 c7 e1N Bd3 Be2 Nc4 d1B Bd4 Re8 Nb2 Ka3 Kh7 Nf5 g7 Re6 g8Q Nh4 Bh8 Rf6 Qg6 Rf5 Be4 Bb5 Ne2 Qf8 Qd3+ Bb3 Ng3 Qd8 Rc1 a1B Rc3 Ka2 Rg1 h1B Kg7 Qe7 Kg8 Qe6 Qh7 B3a4 Qd6 Qec4 Qdg6 Rf6 Bf5 Bd5 Rg2 Qc6 Re2 Qc5 Re4 Kb1 Be6 Ba2 Bf5 Raa6 Ra8 Rad6 b8B Rd2 Ba7 Rfd6 Bb6 Rf2 Re8+ Rd3 Rf8 Qc6 Nd1 Bb2 Be3 Ka1 Ra7 Ba3 Nb2 Bad6 Bc5 Rd5 Bb1 Nb8 Ne2 Rh2 Qf5 Bd3 Qg4 Bcf5 Bg1 Rf2 c8B Rd4 Ba6 Qc8 Ng3 Be8 Qgg6 Bdc4 Bb7 Bcb5 Bd5 Bc7 Bc4 Rd8 Be6 Nd7 Ra4 Bb8
3N4/2pb1Bbq/1r2BBnn/1q1r1R1Q/4r3/nnNR1P1K/2R1nBQn/k7 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 b4 Kd7 g4 Kd6 d4 Kd5 b6 e5 b7 h5 g5 a5 g6 c3 f3 c2 Kf2 h3 Kg3 h2 b5 h4+ Kg2 h3+ Kg3 a4 g7 e3 b6 e4 Bb2 c1N Nd2 a3 Qe1 e2 Nb1 Kc4 d5 Kb3 d6 e3 d7 a2 Kg4 Ra6 Nc3 Nc6 b8R Rh5 b7 Nh6+ Kg3 Rd5 g8B Rb6 Qd2 e1R Qg2 e2 Rb1 a1N Be6 Qe8 d8Q Ne5 Qg5 Ng6 Qh5 Bd7 Rd8 Bg7 b8B Kc2 Ba7 Nab3 Ra8 Qb8 Bf7 Qb7 Rf8 Qc6 Ra1 Qc5 Ra3 Qb5 Na4 Kb1 Bf6 Nh4 Ra2 Ng6 Rb2+ Ka1 Nc5 Red1 Nb7 e1N Rd8 R1d4 Bc4 Nc2 Ne2 Re4 Nc3 Na3 Rd1 h1Q Rf8 h2 Rc2 Rbd6 Be6 Rb6 Rd3 Ne2+ Kh3 Qb1 Rf7 h1N Nd8 Nhg3 Rf8 Nf1 Rf7 Rbd6 Bf2 Ra6 Be5 Nh2 Rf5 Qh1 Bf6 Rb6 Bf7 Rdd4 Bce6 Rd5 Rg5 Qb1 Rf5 Qa6 Rg5 Red4 Rd1 Qb5 Rb2 Ne5 Rdd2 Qe4 Rbc2 Qh7 Rd3 Ng6 Rf5 Re4
1q4K1/rp1NrnQR/r1b1k2r/1n2Bb2/Q4Q2/b1r4B/1B1P2r1/3q1NRB w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 f5 a4 h5 g4 c5 e4 h3 g5 h4 e5 h2 g6 b3 a5 c4 g7 b2 a6 c3 d6 h3 a7 c2 Bg2 Nc6 Na3 b1Q Qf1 Rh6 Ne2 Ke6 Bb2 Qd1 d7 c1R Nc4 Ba3 Nb6 Qc7 d8B Qb8 Rg1 h1B Bf6 h2 Nd7 Rc4 Qf2 Rc3+ Qe3 Rg6 Rc1 Nh6 g8Q+ Nf7 Qg7 Qb3 Ng3 Qd1+ Kf2 f3 Nf1 f4 Bh3+ Rg4 Qe4 Nd4 Qf5+ Kd5 e6+ Kd6 e7 Nb5 Qfg5 Ke6 e8B Bg2 Be5 h1R Nb6 Rh2 Bc6 Bd7 Be4 Bc6 Nd7 Bh1+ Bg2 Rh6 Bh3 Bg2 Ne3 Bf1 Rh1 Bd3 Nf1 Qg8 Qh4 Re8 a8Q Re7 Qa4 Qb8 Qg3 Bc2 Kg1 f2+ Kh2 Bb1 Rg1 Bd3 Bh1 f3 Qgf4 Bf5 Rb1 Rgh4 Kg3 Rf6 Nh2 f1R Rc1 Rf2 Nf1 Rhh6 Ra1 Rhg6+ Kh4 Re2 Kh5 f2 Ng3 f1R Rb1 Rff3 Nf1 Reg2 Rc1 Rce3 Rc5 Rc3 Rc4 Be4 Rc8 Bc6 Rh8 Rc1 Rh6 Ra1 Rh7 Rc3+ Qf3 Be4 Qb4 R6g4 Qh8 Bd5 Qb3 Ra4 Qf8 Bd6 Qg8 Qc1 Qf4 Ra7 Qgg5 R1a5 Qba4 R5a6 Qg8 Ba3 Qg6 Ng5 Kh6 Nf7+ Kg7 Bc6 Qgg5 Qd1 Qg6 Qd6 Kg8 Qc7 Qgg5 Rh6 Qg7 Qb8+
Nr5R/1p1bPr1R/2BQ1r1q/Q7/Rb3rBn/1k1b1q1r/N1r5/R1n1K1B1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Kd7 g4 Kd6 d4 h5 e4 f5 g5 c5 g6 c4 g7 b3 a5 h3 a6 h2 a7 b2 Na3 b1B Nc2 f3 Ra6+ Qb6 Kd2 f4 Ne3 f2 Be2 f1R Qa4 h4 Qa1 h3 Qa5 f3 Bd1 f2 Bg4 Ne7 g8B Nf5 Ne2 Rh4 Nc3 Bd7 Na2 c3+ Ke2 c2 e5+ Kc7 d6+ Kc6 Bb2 c1R e6 Bd3+ Kd2 Rh6 Nd5 Rf6 Nc7 Nh4 Bf7 Rc4 Be8 Rfc1 Bc3 f1R Bb4 R1f5 Bc5 R1c2+ Ke1 Rf7 Nb5 Kd5 Nc7+ Ke4 d5 Nc6 Be3 Rb8 a8R R5f6 Bg1 Nd4 R8a7 Ne2 Na8 Nc1 e7 Bg7 Qd2 Ke5 Ra4 Rcf4 Qa5 Qe3+ Kd1 Qf3+ Ke1 B7f5 d7 Bh8 d8Q Bd7 Qd2 Bg7 d6 Kd5 Ra3 Kc4 Q8a5 Bh8 Ra4+ Kb3 Ra6 Rg6 Ra7 Bc3 Ra6 Rgf6 Ra7 Be6 d7 Bb4 d8R Bc8 Bc6 Bd7 Be3 R4f5 Rh8 Rf4 Rf1 h1Q Bg1 h2 Rf2 Qd5 Rf3 Qg5 Rh3 Qf3 Ra6 h1R Ra7 Ng6 R3h7 Nh4 Ra6 Rh3 Ra7 Be4 Ra6 Qh6 Ra7 Rc3 Qd6 Rc2+ Nc3 Re8 Ra1 Rg6 Qac7 Reg8 R7a4 Bd3 Qb6 Rb8 Qa5 Ba3 Na2 Rgf6 Be4 Bc5 Bc6 Bb4+
R2Q1Q1r/p5rP/1r1QK3/rb1B4/3NrRn1/2BNb1QN/n2b4/1kn2nq1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 e4 Ke5 h4 f5 b4 g5 b6 d5 b7 f3 Kg3 d3 h5 Kd4 b5 f2 h6 d2 b6 f4+ Kg2 f3+ Kg3 Bb4 h7 Nh6 c5 Nf5+ Kh2 g3+ Kh3 g2 Kg4 Bd7 c6 Qg8 c7 Bb5 c8N Nd7 b8Q Ne5+ Kh3 Ng3 b7 g4+ Kh4 Ne2 Nc3 Kd3 Na2 g3 Qd6 d4 Bb2 Rb8 Nh3 g1B Rc1 g2 Ne7 Bc3 Qe1 d1R Nf5 Bd2 Rc8 Ra1 Bc3 Kc2 Nc1 d3 Nd4+ Kb1 Rf8 Re8 b8Q Ra5 Qbd8 Re7 Re8 Rb7 Kh5 Rb6 Rf8 Qg3 Rf4 Qh2 Kg5 Qg3+ Kf6 Qh2 Ncb3+ Nc1 Ke6 Qg3 Be2 f1R Nc5 Bge3 Rg1 f2 Bd1 Qg5 Bb3 Qg3 Bd5 Qg7 Qe2 Re1 Qg4 f1N Qg3 Re2 Rh1 g1R Rh2 Be1 Rg2 d2 Nd3 d1N Rgf2 Qg5 Rf8 B1d2 R2f4 Nd7 e5 Rgg2 Bb2 Nc3 Re8 N3a2 Bc3 Qg4+ Rf5 Qh5 Qg4 Bf4 Qc7 Qg6+ Ke7 Re1 e6 Bfe3 Ra8 Rg3 Rf4 Ne5 Qcd8 Bg1 Qf3 Qg8 Kf6 Rg4 e7 Re4 e8Q Bge3 Qf8 Rg1 Ke7 Qg2 Kf6 Qh2 Qf2 Rg7 Qg3 Qg1 Ke6 Ng4+
rR6/qB4N1/QN2bR2/1qNqB2B/1r3n1q/2bp2kP/2K2nbb/B3qQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kf6 e4 Kg5 b4 Kh4 b6 f5 c5 a5 b5 g5 e5 d5 h3 f3 c6 f4 b7 f2 e6 d3 b6 a4 c7 f3 e7 a3 e8N g3 Bb2 g2 Qe1 a2 Ng7 g4 Qe6 g3 Be2 f1B Bc3 f2 Kd1 d2 Bh5 Ne7 Qe1 Nd7 b8Q Nf6 b7 Ng4 Bb2 Ng6 Bd4 Bd6 Na3 Nf4 Qe2 Be6 Rb1 a1B c8B Bc3 Rb4 Ra4 Rb5 Rb4 Qa7 Rg8 Qf3 Qg5 Ne2 g1Q b8B Bg2+ Kc2 f1Q Nc4 Nf2 Bb7 Qe1 Bc6 Qgf1 Nc1 Be5 Bd6 Ra8 Rb8 Qh6 Nb6 Qb5 Nb3 Qg5 Qd1 Qf6 Qc1 d1Q+ Kb1 Qf3 Rf1 Qh6 Qa6 Qg5 Be3 d4 Kc2 Qfd5 Bd2 Qe7 Qd1 Qa7 Nc5 Qe3 Bc1 Ng6 Ncd7 Ne4 Re8 Bf3 Qe2 g2 Qa5 g1Q Bb2 Qg3 Nc5 Bg2 Rf6 Nf2 Qf1 Qe1 Ba1 Qg5 Rh8 Bh2 Be5 Nf4 Bb7 Kg3 Rb8 Qh4 Qa6 d3+
Q2NbQ2/2b4k/1r1B1KNb/NB3rr1/RR4q1/1pQN1Pbn/n7/q5br w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Ke5 b5 d4 c5 g4 c4 a4 b3 f3 h3 a5 h2 d6 h4 d7 b4 g5 c3 d5 e3 a6 h3 g6 e2 d6 e1B a7 c2 Be3 c1B Ra5 b2 Rd5 Bf2 Rb5 Nf6 Qc2 Ne4 Bb6 Na6 Bd3 Bf4+ Kf5 e5 Qc6 Rh5+ Ke6 Rg5 Na3 b1R Ne2 Bg1 Bc2 Nf2 Be3 e4 Bc5 e3 Nc1 e2 Nc4 e1B Nd3 Rf5 Ra5 Qg5 Ra4 Qg4 Na5 b3 Bb4 Rb8 a8Q Rb6 Qc3+ Be5 Ba3 Nb4 Bd1 Ba6 d8Q Na2 Be2 Bb5 Qe8 Kh8 g7+ Kh7 g8N Bh6 Qf8 Be8 Ne7 Rc1 Ng6 Rc2 Qa1 Rc5 Qc3 Bg3 Rb4 Bed2 Ke7 Bdf4 d7 Bc7 d8N Rg5 Nb2 Rcf5 Bb5 Nd3 Ra4 Nf4 Bd6 Bc5 Rg1 h1Q Rd1 h2 Rdd4 Qa1 Nd3 h1R Rdb4 Nh3 Ke6 Bg1 Ke7 Re5+ Kf6 Ref5+
nq1N4/3nq2B/Q5K1/2NN1bNR/r6P/Qpr5/1B2bb1R/1kr1Qrbr w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 a4 Kd6 d4 g5 h4 c5 e4 b5 a5 f5 a6 g3+ Kf3 g2 a7 g4+ Kf2 c4 Nc3 f3 Kg3 f4+ Kf2 g3+ Ke1 f2+ Ke2 f3+ Ke3 Na6 Kf4 Nf6 Kg5 Nc7 Bd3 f1B Bc2 f2 Nge2 g1R Na4 c3 Qd3 g2 Rh2 Rh1 Nf4 g1B Bb1 c2 e5+ Kd7 e6+ Kd6 Ba3 c1R e7 Bch3 e8Q Qd7 Qe1 Be2 Qdc3 f1R Qd3 Bg7 Qf3 Qe7 Bh7 Rhc8 Kg6 Bh6 Ra2 Bg4 Rc2 Be6 Rc5 Bh3 Ne6 Bhe3 Nc3 Bef2 Qd3 b3 Qc4 b2 Qb3 Rab8 a8Q b4 Qa6+ Rb6 Ra5 Na8 Qa2 Kd7 d6 Kc6 d7 b1Q+ Rf5 Kd6 d5 Qb2 Rh5 Bf5+ Kh6 Ke5 d6 b3 Ng5 Kd4 Nd5 Rb4 Qa1 Qc3 Bb2 Ra4 Qa3 Rc7 d8N Rcc4 d7 Kd3 Ndf7 Kc2 Ne4 Qce5 d8N Qb8 Nc5 Kb1 Ng5 Rc2 Nf3 Nd7 Ng5 Be6 Kg6 Rc3 Nh3 B6g4 Ng5 Bf5+
qq2BNq1/1QNn1b2/1n1Nb1b1/1K2N1R1/Q3q1P1/1rR1b3/3p2B1/1q2krB1 w - - 0 1 illegal: No possible last move, all moves rejected
1r1k4/rB3q1R/3K4/br1N1R2/1bbBPQrN/nqn4Q/3p1Qb1/N1N2b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 Kf3 d5 e4 a5 g4 h5 b4 h3 c4 h2 g5 h4 c5 h3 g6 d3 c6 d4 b6 d2 b5 d3 c7 a4 g7 a3 b7 a2 b6 Nd7 b8N Ne7 g8N Ba6 c8Q Ne5+ Kf2 f3 Ke3 f4+ Kf2 Nd5 b7 Nc3 Qe2 d1R Bg2 d2 Nc6 Bc4 b8Q Bb4 Nd4 Ra7 Bb2 Rc1 Nf6+ Ke7 Qf1 Qg8 Na3 Qf7 Rb1 a1B Nb3 Rh4 Qb6 Rg4 Nc2 Qe6 Qh8 Qg8 Qe3 Kd8 Nd5 Ba5 Qh7 Qf7 Qfe1 Qb7 Bf1 Qb4 Nbd4 Qb3 Nge2 Bb4 Nf5 Ba5 Rg1 h1B Nh4 Bg2 Rh1 h2 Qf5 Rg3 Qh3 Rg4 Ba3 Bb2 Bc5 Ba3 Na1 B3b4 Bd4 Rc2 Nc1 Rb2 Bd3 Rc2 Rf1 h1R Qg3 Rh3 Qh2 Rhg3 Qh3 Rg8 Rh1 R3g4 Qf1 Nf7 Rb2 Nd6 Ra2 Ndb5 Ra3 Bc7 Ra5 Na3 Rb5 Bca5 Rc5 Ba6 Bb5 Re8 Bc6 Bc4 Bb7 Reg8 Nb6 Re8 Rf5 Rh8 Nd5 Rf8 Kg1 f2+ Kh2 f3 Qf4 Re8 Qe1 f1Q Qee3 f2 Qeg3 Qe2 Qge3 f1B Qff2 Rf4 Kg3 Qh5 Rh2 Qf7 Rh1 Rf3+ Kg4 Rg3+ Kf4 Reg8 Ke5 R3g6 Qh6 Rb6 Qhf4 Rg4 Rh2 Rb5 Rh1 Rc5 Rh2 Rb2 Kd6 Ne2 Qc3 Qa2 Ng6 Qb1 Qce3 Bc3 Ba6 Rb8 Bb7 Bcb4 Rh7 Qb3 Qh3 Nc3 Nh4 Rb5+
R6R/2b2bN1/2n1q3/1Nrn2QK/bPB1p1BQ/b3rBb1/2r1QB1r/2k2q2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Kg6 g4 d5 c4 e5 c5 a5 g5 Kf5 g6 h5 b6 d3+ Kf2 d4 g7 e3+ Kf3 h3 b3 e4+ Kg3 h2 b7 a4 c6 h4+ Kh3 d2 c7 a3 Qf3 d1B Bb2 e2 Qf2 e1B Bc1 d3 Qa2 d2 Qb2 a2 Nc3 Qf6 Nb5 Be6 c8B Ra3 Bd7 Ne7 g8B Nd5 Ne2 Rh5 Bg2 Bg3 Qc2 Nc6 b8Q Bd6 b4 Re3 Qc4 Ba4 Qd8 d1Q Bf3 Bc7 Bd2 Qg6 Be1 Rg5 Bf2 Qe1 Rd1 a1B Qd3 Bf6 Ra1 Bb2 Qd2 Qh6 Qd1 Ba3 Ned4+ Kg6+ Nf5 Qf1+ Bg2 Rh5 Kg4 h3 Qe2 Bf7 Ng7 Rf5 Rg1 h1R Bf3 Rh2 Qh4 Rg2 Rh1 h2 Qh3 Rh5 f5+ Kf6 Be6 Ke5 f6 Rf5 Qh4 Rh5 Bh7 Bg8 f7 Qf6 Bef5 Qe6 f8Q Rg5+ Kh3 Rh5 Qd8 Rg5 B5g4 Rf5 Na7 Kd4 Qdg5 Kc3 Nb5+ Kb3 Bg6 Re5 Bf7 Rf5 Qd3+ Kb2 Ra2+ Kc1 Qe2 Nb6 Qh7 Rc5 Qhh4 Qg6 Bc4 Nd5 Bf5 Qe6 Kg4 Nd8 Kh5 Nc6 Rg1 h1R B5g4 Rh3 Rh1 Rhh2 Rd2 Nb6 Rd8 Nd5 Ra8 Na5 Qa2 Rh3 Be1 Rb2 Bf2 Qc8 Kh6 Nc6 Qhh5 Rb3 Kg6 Rc3 Qe2 Rc2 Qh7 Rh2 Qhh6 Rg2 Rh5 Rh2 Qh4 Qh1 Q6g5 Qf1 Rh8 Qe6+ Kh5 Bf7+
qnbbQQ1B/2R2Q2/1R3N2/3r2qr/p2P2nq/1R1K4/3bq2k/bQqN3B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Ke7 Ke2 Kd6 b4 Ke5 g4 c5 g5 h5 b6 a5 d3 f5 b5 h3 b7 c3 g6 c2 g7 h4 b6 a4 Rh2 f3+ Ke3 f2 Be2 f1Q Bh5 f4+ Kd2 f3 d4+ Kf4 e5 Kg3 e6 c4 e7 f2 e8Q c3+ Ke3 Nf6 Nd2 Ra5 Rb1 Be7 Rb3 Rd5 Bf3 Rhh5 g8Q+ Ng4+ Ke4 Qa6 Bh1 f1Q Qgf7 Qa8 Ba3 Qg2+ Kd3 c1B Qef8 Bb2 Qb1 Bf6 Be7 c2 Q8e8 Bg5 Bf6 c1B Bh8 Ba1 Qef8 Qf1+ Re2 h2 Nh3 Qg2 Nf2 h3 Re7 Qe8 Rc7 Bd8 Nd1 Qg1 Bg2 h1Q Ne4+ Kh2 Nf6 Bd2 Be4 Qhg2 Bf3 Q2f2 Bh1 Qe5 Q8e8 Qh4 Qef8 Qgf2 Q8e8 Qeg5 Qef8 Nd7 b8Q Qe1 b7 Qe6 Qa7 Nb8 Q7e8 Qe2+ Kc2 Be7 Rc4 Rf5 Nf2 Rd5 Bf3 Na6 b8R Kg3 R8b6 Bd8 Qaf7 h2 Rc7 h1Q Be4+ Kh2 Bg2 Qe6 Kd3 Qc1 Bh1 Nb8 Nd1 Qe2+
1n5k/3R1nq1/1rqQq2r/r1B2bNP/1N1QqR1K/3QR1p1/1b1r2r1/1B1R4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 Kf7 e4 Kg7 c4 a5 h5 d5 c5 a4 e5 d3 c6 d2 b6 g3+ Kf3 g2 e6 d4 b5 g4+ Kf2 f3 Kg3 f2 b7 a3 c7 a2 b6 d3 e7 f4+ Kh4 f3 Be2 f1Q Qb3 d1Q Qd5 f2 Qb5 d2 Nc3 g3 Nh3 g1R Ng5 Qd6 e8R Ra5 Qd3 Rg2 Re3 Qde1 Ba3 d1R Nd5 Rh6 Bc5 Rd2 Nb4 Qe6 Rd1 a1Q Bg4 Qfe2 Bf5 Qc6 Rf1 Kh8 Bh7 Be6 c8R Bg7 Rc7 Bb2 Rd7 Bf5 Bg6 Qef3 Bh7 Qe6 Bg6 Qfc6 Bh7 Na6 b8Q Qe2 Qa7 Nb8 b7 Qef3 Rfe1 f1R R1e2 Qfd5 Rf2 Qde4+ Rf4 Rff2 Qa3 Rd6 Qd3 Rd2 Qb6 Qc1 Qd8 Qc3 Bg6 Qg7 Qf6 Qa6 Qfd4 Rb6 Bh7 Ne7 Bg6 Nec6 Bh7 Ne5 Bg6 Nbc6 b8Q+ Qc8 Qc7 Nb8 Qcd6 Qcc6 Bf7 Qeg6 Ba2 Nf7 Bb1 Qge6
1Q2QNQQ/8/1N4r1/NRR1q1np/2nBbk1n/bP2q2r/1r4r1/1n1K1B1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 g4 Kd6 c4 Ke5 b6 a5 b7 f5 g5 d5 c5 a4 c6 h3 g6 a3 c7 d3 b3 d2+ Ke2 d4 g7 f3+ Kf2 d3 Qe1 d1R Ra2 d2 Bd3 h2 Ke3 f2 Ke2 f1N Qf2 f4 Qg2 f3+ Kf2 Nh6 g8Q Ng3 Qg6 Nc6 b8N Na5 Nc6+ Kf4 e5 Ra6 e6 Bb7 c8Q Nhf5 e7 Qe8 Ra1 a2 Na3 h5 Be2 Nh4 Qh7 Rg8 Bb2 Rb1 Nc4 d1N+ Ke1 Ne4 Qh8 Rg5 Bd3 f2+ Ke2 f1R Nf3 Rg4 Nfe5 Rf3 Nd7 Rh3 Rg1 h1R Qb8+ Nd6 Kd2 Nc3 Rc1 Rb6 Qd5 Rg2+ Be2 Ba8 Qdg8 Bb7 Na7 Ra6 Nc8 Rc6 N8b6 Ba8 Qb7 Nf7 Qa7 Ng5 Qb8+ Rd6+ Kc2 Qc8 e8Q Qc5 Qec8 Be7 Nf8 Qe3 Qe8 Bd5 Rd1 Bb7 Rd5 Bc6 Re5 Rg6 Rb5+ Bd6 Qbc8 Ba3 Qa8 Rbf1 Rc1 a1Q Qb7 Nb1 Qbb8+ Bd6 Bc3 Rff2 Bf6 Qad4 Bg7 Qd5 Bc3 Qde5 Bd4 Nd2 Bd3 Ba3 Bf1 Nb1+ Kd1 Rb2 Rc2 Be4 Rc3 Nb7 Na5 Nd6 Rcc5 Nc4
rN2B3/Nkn5/1b1q1Bb1/q1n1Q1pR/P7/q1br3N/1BR1NqK1/2Q2bb1 w - - 0 1 illegal: No possible last move
6Qn/QRKBqRq1/3n3q/4pr1N/b3Nb1r/1P2b2B/bqNBB3/6qk w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 c4 Kg5 f3 Kf4 b6 Kg3 c5 d5 c6 e5 c7 h5 b7 a5 g5 a4 f4 a3 f5 h3 g6 h2 g7 a2 f6 e3+ Kd3 e2 f7 e1B Nc3 h4 Qh5 h3 Nb5 Bd2 Qf5 Bf4 Nc3 Rh4 Be3 Nc6 b8N Nh6 g8B Bc5 f8Q Ne7 Re1 a1Q Be6 Nf7 Rc1 Ng6 Nb1 Nd6 Qg8 Qe7 Be2 Kg2 Nf3 Ra4 Rhd1 h1Q Nd7 h2 Nbd2 Qg1 Rf1 Kh1 Nf6 Nh8 Ne1 Rh5 Rf3 Qgg7 Qfh7 Rf5 Nde4 Bb7 c8B Rb4 Kc2 d3+ Kc3 d2 Nc2+ d1B Bd2 Bce3 Rb1 d4+ Kd3 Rc4 Nh5 Bd5 Bcd7 Ra4 Rf2 Ba2 Rf3 Rf6 Bh3 Rf5 Qa8 Rc4 Qa7 Rb4 Qg8 Rc4 Ne1 Ba4 Nc2+ Qg1 b3 Qb2 Rc1 Rb4 Ne1 Qgg7 Rc7 Kg1 Rb7 h1Q Nc2 Qh2 Rg3+ Kh1 Rg6 Qg1 Rf6 Q1g6 Rf7 Q6h6 Nc5 Ne8 Ke4 d3+ Kd5 Nd6 Ne4 Rc4 Bc3 d2 Bb4 d1Q+ Bd2 Rd4+ Kc5 Qdg1 Kb6 Rb4+ Kc7 Bh2 Nc3 Rh4 Ne4 Bhf4
r2q1bN1/3B1b2/K2BQQR1/bnp5/q1N1b1r1/4bB1P/1n1BR3/r1r3kN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 d4 Ke7 Kd2 Kf6 Kc3 Kg5 e4 Kh4 b4 a5 e5 f5 d5 g5 e6 a4 e7 g3 e8B f3 h3 f4 b6 g4 d6 f2 b5 f3 Kb4 a3 b7 a2 b6 c3 Kb5 c2 d7 g2 Qd3 Kg3 Bb2 Qg5+ Qd5 Rh4 d8B Ne7 Bg7 Nf5 Qc6 Nd6+ Kb4 Be6 Be7 Nc4 Rh2 Bf7 Nd2 Nb2 Be2 f1Q Bh6 Kf2 Bd7 Qd1 Nc4 g3 Rb1 Qf6 Kb5 Na6 b8Q a1R b7 c1B Qd5 c5 Qd8 Bd2 b8N Ba5 Bd6 Qc2 Bd2 Nc7+ Kc6 Qg5 Kb7 Nb5 Nc6 Qa4 Ne7 Re4 Ng8 Qe7 Qe8 Qd8 Qg5 Rh4 Bd1 Kf1 Ne2 g1R Qge5 f2 Q8e6 g2 Q5f6 Rh1 Rc1 g1B Rg2 Rd4 Rg6 Rg4 Ng3+ Kg2 Be2 f1B Re1 Be3 Bd1 Rg1 Nh1 Bd3 Be2 Rf1 Bf3+ Kg1 Re2 Bc2 Bfc6 Rfc1 Bf3 Rc8 Ka6 Be4 Qd4 Rb8 Qdf6 Ra8#
1nbbB2q/KQb3bN/6rn/pNr2b2/n1Q3Nk/n2P4/1N1BRq2/1Q2R3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 b4 Kf6 g4 Kg5 e4 h5 d3 f5 b6 c5 b5 a5 b7 h3 e5 h2 b6 c3 e6 c4 e7 h4 e8N c2 Bb2 c1B Nc7 h3 Bg2 f3 Bd4 f4 Qa4 c3 Qb3 c2 Na3 Ra6 Qc4 Nh6 Be3 Bg7 Ncb5 Kh4 g5 Re8 g6 Re5 Rb1 Rc5 Rb2 Qh8 Ra2 Bcb2 Bd2 Bbe5 Rb2 c1B Ra2 Bgf6 g7 Bc7 g8N Bfd8 Nf6 Bb2 Ng4 Bg7 Rc2 Nc6 b8Q Bf5 Qb7 Nb8 Ke1 f2+ Ke2 f1N Bc6 Ne3 Be8 f3+ Kf2 Nd5 Rb2 Nb4 Ke3 f2 Rc2 f1Q Nf3+ Kg3 Ng5 Kh4 Rg1 h1N Nh7 h2 Ra2 Qg2 Re1 Nf2 Rc2 h1B Rb2 Re5+ Kd4 Nd1 Rc2 Qh2 Ra2 Bd5 Kc5 Qf2+ Nd4 N8c6 Be3 Bg5 Qb3 Re4 Rae2 Qg8 Bd2 Nc2 Qa7 Nc3 b7 Bde6 b8Q Bc8 Nc4 Bgd8 Q8b5 Qh8 Qab7 Nb8 Qb1 Rb6 Nb2 Rg6 Qc4 Na4+ Kb5 Nc6 Ka6 Re5 Nb5 Rc5 Be3 Nb8+ Ka7 Na3 Bc1 Kh3 Bd2 Kh4
3q1BQ1/6q1/b1Nb1rkP/prnBQ2r/7R/2q1NN2/1Qr2nK1/1RQq2q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 Kf7 e4 a5 c4 d5 h5 f3 c5 f4 c6 d3 e5 d2 c7 d4 b6 d3 b7 Bd6 b5 Nf6 b6 Na6 b8N Nc5 Nh3 g3+ Kg1 g2 b7 f2+ Kh2 g1R Bb2 g4 Nc6 f3 b8Q Ba6 c8Q Nfe4 Qa4 d1Q Nc3 d2 Ba3 Qc1 Bg2 f1R Qc2 d1Q Rb1 f2 Qbb2 Rb8 Nd5 Rb5 Ne3 Rh6 Qd2 Qc3 Qdc1 Rf6 h6 Kg6 Ng5 g3+ Kh3 Re1 e6 f1Q e7 Re2 Nf3 Rc2 Qe6 Qfe1 Qe5 Rf1 Rh2 Rg1 Bh1 g2 Bb4 Rf1 Ba3 g1Q e8Q+ Kh7 Bb4 Qg7 Qg8+ Kg6 Ba3 Nf2+ Kg2 Rf5 Rh3 Rh5 Rh4 Nfd3+ Nd2 Rf6 Bb4 Nf2 Nf3 Nd7 Bc5 Bb8 Be7 Bd6 Bf8 Nc5 Nh2 Nb7 Kg3 Rb4 Bd5 Rb5 Nf3 Nc5 Kg2 Qg1+
4qR2/b4NNq/rr3R1p/bPkb4/3n1R1n/1q6/Q2q1Bb1/KQ1b1BRB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 a5 g4 f5 c4 f3 Kc2 h3 Kb2 f4 b6 f2 g5 a4 b5 a3+ Ka2 f3 e5+ Kc5 e6 d5 e7 h2 e8Q d3 b7 d2 g6 d4 g7 d3 Qde1 d1Q Qd2 Ra6 Nc3 Be6 Nh3 Nc6 b8R Nge7 g8R Ng6 Nf4 Nh4 Qg6 Qe8 Rb6 Nd4 Nh5 Bd5 Rg1 h1Q Ng7 h6 Rf6 Qh2 Qe2 d2 Qb1 Qc2+ Bb2 d1B Qe6 Bd6 Rgf8 Qh7 Rg4 Rb6 Rgf4 Bb8 Qf7 Ba7 Ne4+ Kb4 Ng5 Kc5 Qg8 Qh3 Nf7 Qhe6 Bg2 f1Q Bh1 f2 Bc3 Qg2 Be1 f1B+ Bf2 B1f3 Qf5 B1e2 Rg1 Bd1 Ka1 a2 Qb1 Qe3 Qc1 Qb3 Qb1 Kb4 c5 Ra6 c6 Kc5 Be1 Qd2 c7 Bg2 c8B Rb6 Bf2 Ra6 Bh3 Rb6 Nf5 Ra6 Qg5 Rg8 Qg4 Rg6 Ng7 Rb6 Qe2 Ra6 R6f5 Rgb6 Rf6 Bgf3 Qee4 Qe6 Bf1 Bg2 Qf5 Qe8 Qbc2+ Qc4 Kb2 a1B+ Kb1 Bc3 Qa2 Ba5 Ka1 Qa4 Qb1 Qb3
4b1n1/2nbb2n/4npN1/2k1q3/BR3Qb1/RB1Qb2P/2K1qB1R/Nr3Rr1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 c4 a5 b4 g5 b6 f6 b7 d3 b5 a4 h3 f3 e5+ Kc5 e6 d5 b6 d4 e7 g3 e8B f2 Qe1 g4 Bh5 a3 Ra2 g2 Bb2 g3 Qe3 Qd5 Bhe2 Qe5 Bg4 Na6 b8Q Be7 b7 Bd7 Bh5 Nc7 Ne2 g1B Kd1 g2 Nf4 d2 Rh2 Ra4 Qd8 Rb4 b8R Be8 Bd3 f1Q+ Kc2 Qe2 Bf7 Bf2 Bf5 g1N Ng6 Nf3 Bd7 Ng5 Ba4 Nh7 Qf4 Be3 Be6 Rb3 Rb4 Bd7 Ra1 a2 Na3 Be8 Rf1 a1N+ Kb1 d1B Nc2 d3 Bf7 d2 Qd3 Rc3 Ba3 Nb3 Na1 Nd4 Bc1 Ra3 Bb2 Nde6 Bd4+ Kd6 c5+ Kd5 c6 Rb3+ Ka2 Rb1 Ka3 Rc1 Kb2 Bc2 Kc3 d1B Kb2 Rb1+ Kc3 Na8 c7 Bb3 c8R Nc7 Ra8 Bbc2 Qd2 Bf5 Qd3 Kd6 Bc6 Bg4 Ra3 Ba4 Bb5 Neg5 Bb3 Nge6 Ba6 Bad7 Bb5 Nh6 Bc6 Rg8 Bca4 Rg7 Qff5 Ng8 Qf4 Qf3 Kc2 Qe4 Bc3+ Kc5 Be1 Qf3 Bg3 Qe2+ Qd2 Qf2 Nh4 Be2 Qd3 Qf3 Bf2 Rg1 Ng6 Qg2 Bh4 Qf2 Bg3 Qe1 Bh4 Bg4 Bf2 Qe2+
5qrb/1q1B1bnB/QbrNp2k/nqb2R1B/7R/1QBN4/P3N3/1qK1b3 w - - 0 1 illegal: No possible last move, all moves rejected
2q2NQ1/1B3b1R/2qp1K2/2r2R2/1Qb3Nn/bN1rB1k1/NP1Bbnr1/2r2b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 c4 f5 e4+ f3 g3 h5 b6 a5 c5 h3 b7 a4 c6 a3 c7 h2 Bb5 a2 Bh6 h4 Qe1 f4 Qe3 h3 Bf1 f2 Nf3 d3 Bg2 f1B Ne1 d2 Qc5 d1B Nd2 f3 Qb4 f2 Nc2 Bc4 Nb3 f1B Be3 Na6 b8B Ne7 Kf6 Bde2 e5 Rg8 e6 Nc5 Bb7 Ng6+ e7 Ra3 Ba7 Qe8 Bd2 Nd3 Bae3 Nf2 Rd1 a1R Rb1 Kh5 g4+ Kh4 g5 Kg3 Re1 Nh4 g6 Rc1 g7 Ra5 Rd1 Rc5 Re1 Qh5 e8N Qh8 Rd1 Bg2 Rhf1 h1R Rde1 h2 Rd1 Nh3 Rf5 Nf2 Rf1 Bgd5 Rh5 Bf7 Rh7 Nd1 Rf5 Nf2 Be4 B8a6 c8N Rhg1 Ne7 h1Q Ng6 Rgd1 Bb7 Bd6 Nf8 Qc6 Ncd4 Bf1 Nb5 Bce2 Nc3 Bac4 Be1 Rd3 B1d2 Re5 Na2 Bc5+ Kg5 d6 Nf6 Red5 Ng4 Re5 Qb5 Ba3 Qb4 Red5 Kf6 Rc5 Nd7 Re8 Nf8 Re7 Nd7 Qhc8 g8Q Ree5 Nf8 Red5 Rf4 Rg5 Rf5 Kh3 Ne5 Rg2 Ng4 Kg3
k3q1n1/NbRbb3/3pb2r/7B/NK2B3/PB2QR1b/qQ3BRn/1n3r1n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 e5 g4 h5 c4 b5 f4 d3 g5 d6 g6 Kd7 f6 Kc6 f7 Kb7 f5 h3 c5 h2 g7 e4 a3 b3 Kc3 b4+ Kc4 d2 f6 b2 Bg2 h4 Ne2 b3 Kc3 h3 Nd4 Nc6 Qc2 d1B Be3 Rh6 Bf2 e3 Rg1 h1N Nb5 e2 Be4 h2 Rg2 Bd7 Na7 Be7 f8Q Qe8 f7 e1Q+ Qd2 Qg1 Qe3 B1g4 Kc4 Qe1 Nc3 b1N Na4 Bh3 Ra2 Rb8 Rc2 b2 Kb3 Qd2 Rc1 Nf6 g8B Ng4 Qg7 Ka8+ Kc4 Rd8 f8R Qd5+ Kb5 Qa2 Bb3 Be6 Rf3 Rb8+ Ka6 Rb4 Qh8 Rd4 Kb5 Rd1 Qhd4 Rf1 Qb4 Nd2 Qbd4 b1B Qb2 Bd7 Bf7 Bc2 Bh5 Bb3 Rc2 Nb1 Rc3 Bd5 Rc2 Nd4+ Kb4 Nf6 c6 Ng8 c7 Bb7 c8B Bd5 Rf8 Nf3 Rc6 Bc4 Ba6 Bce6 Bc4 Ng3 Rf4 h1B Bb3 Nh2 Rf3 Ne2 Rg4 Ng3 Rg6 B1g2 Rg5 Nh1 Rc7+ Bd5 Rg4 Bb7 Rg7 Bhe6 Rgg3 Bgh3 Rg5 Bf6 Rg2 Be7
3B2nk/bR4nr/r1PB2br/r1pb4/R1Nq1N2/1Nb4K/B1b1N3/q4Q1Q w - - 0 1 illegal: No proof kernel
3BBRq1/B1nq2R1/P1n2B1k/4q3/5N1b/N7/nrQpRQqK/1q1nrb2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 Kf7 g4 Kg7 f4 h5 Kf2 e5 Kg2 d5 a4 b5 c5 b3 g5 h3+ Kg3 e4 a5 b2 g6 h2 f6+ Kh6 f5+ e3 f7 h4+ Kg2 h3+ Kg3 d3 a6 d2 f6 e2 g7 e1Q+ Kf3 b4 c6 d4 c7 d3 Ne2 b3 Ra5 Nc6 Rc5 Nge7 g8R Rb8 Nf4 Qe5 Kg3 Nd5 Qe1 d1N Na3 b1N Rg1 h1Q Bb2 d2 Bb5 h2 Qf2 Be7 Rf8 Bh3 c8Q Nc7 Qf5 Rh7 Qc2 Qd7 Re1 Bg2 Re2 Qg1 Bd4 h1Q Be3 Qed6 Rg5 b2 Ba7 Nbc3 Rg7 b1Q Ba4 Rb2 Bb5 Qe1 Ba4 Qhf1 Kh2 Q6e6 Re8 Qd4 f8B Nb8 f7 Na2 Kg3 Bg5 Bd7 Nc6 Be7 Rh8 f8B Qg8 Re3 Qdd3 Rg6+ Kh7 Bd8 Qg1 Bfe7 Qd4 Rb3 Qee5 Rf8 Qdd6 Be8 Qd7 Re3 Qf1 Rgf6+ Kg7 Re4 Rh1 R6f7+ Kh6 Rg7 Rg1 Re3 Bh4+ Kh2 Bh3 Bf6 Qe2 Qg2 Re1 Re4 Qf3 Qf2 Bf1 Re2 Qg2+
1b4Nq/2n1R2P/3rp1k1/N3bnn1/R3K1bB/1QrNN1q1/B2Qb2n/1b2B3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 c4 g5 f4 d5 b4 a5 h4 d3 Ke3 a4 b6 g3 h5 d2 c5 g4 c6 d4+ Ke2 e3 Kd3 e2 f5 e1N+ Ke4 a3 f6 a2 c7 g2 h6 g3 b7 d3 b5 Bg4 c8N e6 b6 Nf3 Nh3 g1Q Ne7 g2 Na3 Na6 b8N Nc7 b7 Nh2 Nc4 Ra3 Nbc6 Rc3 b8Q Qf2 h7 g1N Ne3 Nh6 Na5 Qg3 Nf4 Nf5 Ng8 Nh3 Rg1 Bd6 Qbb3 Be2 Qdc2 d1B Qd2 Bc2 Ba3 Bb1 Bb4 Kf8 f7 Kg7 f8B+ Kf7 Nfd5 Kg6 Be7 Qf8 Bh4 Qg7 Ngf6 Rd8 Ng8 Qh8 Bg2 Be5 Rf1 Rd6 Rf3 Nh6 Rf7 Nf5 Re7 Bg4 Nc2 Be2 Ne1 Bf4 Ne3 Bg4 Qf2 d2+ Nd3 d1B Qfc2 Bde2 Bf3 Rc5 Be1 Rc3 Qd2 Bc2 Rd1 a1B Rc1 Bb2 Ra1 Bb1 Ra4 Bf1 Bd1 Bfe2 Qb4 Be5 Bb3 Ba3 Qb6 Bc5 Qb4 Ba7 Ba2 Bb8 Qb3 Ng5+
2n2rR1/2Q4p/kq3b2/1rqbqNrR/PRN1QB2/2R5/B6n/r2N1qrK w - - 0 1 illegal: No possible last move, all moves rejected
Q1R5/5KP1/2NbQ2r/1brB1R2/BRqB1nbb/kn2rNb1/p2B4/4q1r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 Ke7 c4 Kd6 f5 h3 g5 h4 g6 a4 f6 a3 g7 a2 b6 e3+ Kd3 e2 Ke4 e1B Kf5 h2 Kg6 e4 f7 e3 b5 Kc5 b7 Kb4 c5 d5 b6 d3 c6 d4 c7 d2 Na3 e2 Nb1 h3 Na3 d3 Nf3 Rh5 Ng1 Bd6 f8Q Nf6 Bg2 Bg3 Qf1 d1B Kf7 e1B Qf2 d2 Nf3 Rc5 Rf1 h1R Qe2 h2 Nb5 Bd7 c8B Nd5 Qe6 Qh4 Nbd4 Bb5 Bd7 Na6 b8R Rg1 b7 h1R Rc8 Nf4 b8B Bde2 Bc7 d1Q Bd2+ Ka3 Nc6 Qc2 Qh8 Qc4 Bb6 Rb8 Rb1 Bd1 Ng5 Bg4 Bd5 Rh3 Ba7 Rb6 Nf3 Qe7+ Kg8 Bh4 Rb4 Beg3 Rf2 Qg5 Kf7 Qe5 Rc7 Qe1 Qa8 Rh2 Rf1 Re2 Rc8 Re3 Ng5 Nd3 Rf5 Nf4 Nf3 Nb8 Nd8 Nc6 Be8 Nd4 Bec6 Ba6 Ba4 Nb3 Nc6 Bb5 Bb8 Bf8 Be5 Bd6 Bd4 Rb8 Rc7 Rh8 Rc8 Rh6
3bqR1R/1N1b1nPr/5Bb1/K1bB2qp/N1Nq1q2/2R3q1/3nN2Q/1k3r1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 c5 d3 Kc3 a4 c6 h3 b6 d2 c7 d4+ Kc4 a3 Kb5 a2 b7 h2 g7 d3 Nh3 Kd4 e5 f3 e6 f2 e7 f4 e8N f3 Na3 Kc3 Nf4 Be7 Ng2 Nc6 b8R Ne5 Rb7 Nc4 Rb8 Nh6 Nd6 Bd7+ Kc5 Qe8 c8Q Rh7 b5 Nf7 b6 Ra4 Be2 f1B b7 f2 Nf4 Ra6 Rb1 a1B Qc7 Ra8 Rg1 h1Q Bf3 Qh3 Bd5 Qg3 Rb4 Bfh3 Rf1 Bhf5 Rb6 Ra6 Rc6 Bg6 Kb5 Ra8 Qf3 d1Q Qh1 d2 Bb2+ Kb3 Bd4 Ka2 Ne2 Qc1 Bf6 d1Q Rd8 Ra4 b8N Qd4 Nb7 Qcg5 Na6 Kb2 Qe5 Nd2 Nac5 Rc4 Rc8 Rc1 Nc4+ Kb1 Na4 Bc3 Qc7 Bcb4 Qe5 Bbc5 Ka5 Qh3 Qeh2 Qhg3 Re6 Rd1 Re3 Re1 Rc3 Rc1 Re1 f1Q Ra8 Qff4 Rf1 Qc8 Rff3 Qc6 Rh8 Rf1 Rfe3 Qc8 Re6 Qcb8 Ra6 Qc8 Ra8 Qc6 Rae8 Qc8 Reg8 Qe8 Rf8 Bd8+
1N2q3/k1nB1P1K/2nb2NB/r5q1/1qr5/nbB5/1NRqQp1n/RB1Q2q1 w - - 0 1 illegal: No proof kernel
r2rbQ1R/r1P5/k2b2N1/4rqn1/3Q3q/b1Bb1r1n/pBK1N1Q1/1Q3B1R w - - 0 1 illegal: No possible last move, all moves rejected
Rb1q3k/p1b1Nb2/6nB/b1rB3r/2Q2N2/2rrrRP1/n4K1Q/1N1R1q1R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 f4 Kg7 c4 h5 f5 e5 g3 d5 c5 h3 b6 d3 b5 d2+ Kf2 h2 b7 d4 c6 d3 c7 e3+ Kg2 h4 b6 e4 Ne2 Ne7 Nec3 e2 Ra6 e1B Ra1 e3 Ra3 h3+ Kf3 e2 Ne4 Nbc6 b8Q Be6 c8R Bf7 b7 Ng6 Ra5 Rh5 f6+ Kh8 Rc7 Bd6 Ra3 Nb4 Ke3 Rc5 Nf2 Na2 Qc2 d1R Rd7 d2 Qc7 Rc8 Nd3 Bf2+ Kf3 Re1 b8R d1R Nf4 Rd3+ Be3 Rcc3 Qc4 Rc5 Ra8 Bb8 Bg2 Bg1 Kg4 Bf2 Bd5 Bg1 Kf3 Bf2 Rg1 h1R Rf1 h2 Kg2 Bg8 f7 Bg1 f8N Bf7 Bd2 Bd4 Rf3 Bde5 Kf2 Bec7 Be3 Rhg1 Ra6 h1Q Rf6 Qh7 Rf5 Rh1 Rh5 Rh3 Rh6 Rh5 Qd2 Rg5 Rh1 Qh3 Qb2 Red1 Bd2 Re3 Bc1 Rdd3 Qc2 Nh4 Qd2 Rh5 N8g6+ Kg8 Ne7+ Kh8 Qd1 Ng6 Qg1 Ra5 Bd2 Rc5 Qh2 e1B+ Kg1 Rc1 Ne2 Rb3 Bb7 Ree5 Bh6 Bea5+ Rd1 Ree3 Bd5 Rbd3 Nf4 Rcc3 Kf2 Qf1+
QB2R2n/pPbB2qr/Bn2b2b/b2rR2R/1bR2K1q/5N2/4N1Q1/kr3r2 w - - 0 1 illegal: No possible last move
1NB2R1r/bBq2N2/2b3qb/5QRn/qBR2nKQ/5n1n/R1pP2k1/3q1r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Ke6 e4 Ke5 b4 c5 g4 a5 b6 f5 b5 h5 b7 h3 b6 a4 g5 h4 g6 h2 g7 h3 Ne2 c3 Nd4 c4 Qe2 c2 Ra3 c3 Qd1 Bd7 Ne2 Bc6 Qe1 Nd7 b8Q+ Qc7 b7 Ngf6 g8R Nh5 Qd8 Bh6 Qdh4 Rf8 Bb2 c1N b8R Nd3 Rab3 a3 Qhg3 a2 Qd1 a1B Ba3 c2 R3b4 Bd4 Nbc3 Ba7 Nb5 Rf7 Rg1 h1N Rgf8 h2 Nd6 Nhf2 Nd4 h1Q+ Bg2 Qh4 Rc4 Nh3 Rb2 Qf6 Qde1 Qg6 Qg5 Rf6 Qeh4 Rf7 Ke2 f3+ Ke3 f2 Kf3 Ndf4 Ra2 Rf6 Bb4 f1Q+ Qf2 Ne6 Qh4 f4 Bh1 Rf5 Rg5 Qa1 Kg4 f3 Bg2 Nef4 Nf7+ Kf6 Qf1 f2 Qd3 f1Q e5+ Kg7 e6 Kf6 e7 Qfd1+ Nf3 Qd4 e8B Ke6 Qf1 Kd5 Qff2 Ke4 Bh1 Nc5 Bd7 Ncd3 Bc8 Ne1 Qf1 Qa1 N3e5+ Nf3 Nd7 Qd1 Rc5 Qc4 Nb8 Qa6 Qb5 Qa4 Qa5 Kd3 Rc4 Ke2 Qb5 Rf6 Qf5 Kf1 Bg2+ Kg1 Bf1 Kh1 Bd3 Kg2 Be4 Re6 Bd5 Re1 Be4 Rf1 Bd5 Bb5 Bdb7 Bc6
6b1/b1BB1k2/Q4rnb/1nq4R/BQrQ2r1/RN1r3Q/1pq1K1Pq/q5N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 b5 d4 f5 e4 c5 a5 h5 a6 f3 a7 h3 d6 f2+ Kd2 h2 d5 h4 e5 f4 e6 h3 e7 b3 Qe2 c4 Nc3 f3 Ba3 b4 Qe6 Nc6 Ra2 Qb6 Qf5 Be6 Rb2 Rh4 Qg4 Bh6+ Qg5 Rg4 Kd1 Rc8 a8Q Na7 Ne4 c3 Bd3 c2+ Kd2 f1Q Rb1 f2 Qe3 Nb5 Qa4 Rc4 Qa6 Qd4 Bb2 Qc5 Ra1 Bf7 Ra4 Qa1 Ra3 f1R Be5 Rf6 Ke2 c1B Ra4 Qa7 Nc5 Bb2 Bg6 Bd4 Ra3 Qb6 Bf5 Qc7 Nb7 Ba7 Na5 Be6 Qg3 Qc5 d7+ Kf7 d8Q Kg7 Bc2 Bf7 e8B Ne7 d6 Bg8 d7 Ng6 Nf3 Kf8 Bc7 Kg7 Rd1 h1R Rd5 h2 Qh3 Rd1 Ng1 h1Q Rh5 Rdd6 Bd1 Qh2 Bc2 b2 Bd1 b1Q Ba4 b3 Qb8 b2 d8Q Rd3 Nb3 Nd6 Qb4 Nb5 Qd4 Kf8 Bc6 Kf7 Bd7 Qc2+
4bq1q/2NR1rnr/2B4R/1Q4Qb/1n2p3/4Qq2/q1RPKb1k/Q1b1B1Nn w - - 0 1 illegal: No possible last move, all moves rejected
Q1R1Q2K/q1b1n2n/5q2/1r1b1k1B/1nQ1prq1/2RN4/P2BQ2n/1N2qrB1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 h5 Kf4 c5 Kg5 e5+ Kg6 b5 g4 c4 f4 h3 d4 c3 f5 c2 f6 h4 d6 Ke6 f7 e3 d7 e4 g5 h2 Qe2 b3 Ba3 c1N Bg2 b2 Bf1 h3 Nd2 b1R Nb3 b4 Bb2 Nd3 Qg2 e2 Nf3 e1N Ne5 Bd6 Kg7 Nf6 f8B Rh4 g6 Rf4 d5+ Kf5 Bc3 Ra5 Qe2 Nc6 Kh8 Bc7 d6 Nf3 g7 Bb7 g8Q Nh7 Nd2 b3 Qc4 Ndb4 Nd3 b2 Bg2 Rc1 Nb1 Ne7 Bd2 Bd5 Rg1 Qb8 d8Q h1Q d7 h2 Qe8 Rf1 d8Q Qa7 Qa8 Rb5 Bh6 Nfg5 Bf3 Qg2 Be3 h1Q Bh5 Qg4 Rg3 Qhh4 Bg1 Nf3 Bg5 Nh2 Rh3 R4f3 Bd2 R3f2 Na3 Qhg5 Rc1 b1Q Rc2 Qe1 Nb1 Q5h4 Rc3 Rf4 Rg3 Qgh3 Rg6 Q3g4 Rc6 Bd8 Rc8 Bc7 Qb8 Qhg5 Qa8 Qf6+
2BBQ2n/1rRB1b2/Q1qn2Nb/1n1b2K1/rPp1N2n/2R5/1qb2Q1Q/2rk4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 b4 Kd4 e4 c5 e5 h5 g5 a5 b6 f5 b7 h3 g6 a4 e6 h4 d3 a3 g7 a2 e7 c3 e8B c2 Qd2 h2 Ba3 c1R Bc6 h3 Be8 c4 Bg6 Be6 Qe1 Rh7 Qd2 Qc8 Be8 Nc6 b8Q Na7 Bg6 Nh6 g8Q Nb5 Bh5 Rb7 Bg4 Ra4 Bh5 Nf7 Qg6 Bh6 Bg4 Nh8 Nc3 Bf7 Ne4 Qc6 Rb1 a1Q Rb3 Qb2 Rc3 Qe8 Qa6 Qc6 Kf2 f3 Kg3 f2 Kh4 f4 Bd7 f3 Ne2+ Kd5 Nf4+ Kd4 Bg2 f1B Ng6 f2 Qc2 Ke3 d4+ Bd3 d5 f1N d6 Nd2 Rd1 Bg7 Kg5 Ke2 Bc8 h1N d7 h2 d8Q Nf2 Bgh3 h1B Qh2 Bf8 Bhd7 Bg7 Qe8 Bh6+ Kh5 Bg2 Rg1 Bh1 Rg5 Ke1 Rc5 Nf3 Qd2+ Kf1 Qdf4 Ke2 Qfg3 Bc2 Qgh4 Qd6 Rc7 Qc6 Q4g3 Nh4 Qgg1 Qb1 Bb2 Qa2 Ba1 Qb2 Qgg3 Kd1 Qf4 Ng4 Qf5 Ne3 Qff2 Nef5 Kg4 Bg7 Kg5 Nfd6 Nf6 Bhd5 Ne4 Qb3 Bb2 Rb1 Bc1 Qb2 Be3 Rba1 Bd4 Bf8 Bf6 Rc1 Bd8 Bh6+
R1QrRb2/N4rB1/rBbnnb1K/1Q1B2B1/1pb2n1Q/1P2N3/3q3r/qk6 w - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 a3 b3 exf6 Qc2 f5 Qc3 f4 Qb2 axb2 Kf2 Kd7 Kf3 Kd6 d4 h5 g4 c5 e4 f5 a4 b5 g5 b4 g6 c4 g7 c3 a5 c2 a6 h3 a7 h2 Be2 h4 Ra3 h3 Nc3 b1N Bd3 Nh6 g8Q Nf7 Qg5 Nd7 Bb2 c1B Nge2 Ba6 Re1 h1R Qh4 h2 Bc4 Nc5 Ng3 Ne6 Nf1 Qd7 Ba1 Bb2 Ne3 Rh6 Ra2 Rd8 a8Q Bb7 Qa6+ Bc6 Qb5 Rf6 Ra8 Rh6 Na4 Nc3 Nb6 Ne2 e5+ Kc7 Nf1 Nd6 Ne3 Rf6 Nc8 Rf7 Kf2 f3 Na7 N2f4 Kg3 f2 Kf3 f1Q+ Kg3 Nc5 e6 Bc3 e7 Nce6 e8Q Rg1+ Ng2 h1R Re5 Qc1 Re1 Rf1 Ne3 Rh2 Bb2 Qa1 Re2 Nh3 Re1 f4+ Kg4 f3 Kh5 f2 Kg6 Be7 Kh6 Nhf4 Qc5 Qa4 Nd1 Nc8 Re4 Ng7 Qa5+ Kd6 Qh8 Re8 Ne3 Ra1 Qb6 f1B Qb5 Qa2 Qg8 Qb1 Qh8 Ra6 Qf8 Qa1 Re5 Qd8 Re6+ Kd7 d6 Bd3 d5 Be5 Rg6 Nge6 Rg8 Bd4 Bc3 Bc5 Bg7 Bf1 Bd3 Bd4 Be4 Bc4 Bh1 Bdf6 Nf1 Qe1 Ne3 Qa5 Rh8 Qc3 Qg8 Qd2 Be4 Qa1 Qf8 Kd8 d7 Kc7 Rg8 Kd6 d8B Ke5 Bb6 Bc5 Bf3 Kd4 d6 Kc3 d7 Kb2 Bd5 Kb1 d8B Be5 Bg5 Bf6 Rh8 Bce7 Rg8 Nd6 Rh8 Rc8 Qd8 Rb8 Re8 Bf8 Qc7 Rd8 Qb7 Ra4 Qc8 Ra6
Bn3nB1/QBn1rQN1/q2k1B2/2q4q/pn1P4/3N1K1b/1RRb2Nq/br6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 f5 b4 c5 e4 a5 e5 h5 g5 h3 b6 h4 b5 h2 b7 h3 e6+ Kd6 b6 a4 d3 f3 e7 f4 e8B c3 g6 c2 g7 c4 Qe1 c3 Na3 Qg5 Bd2 c1N Bd7 c2 Ra2 Ra7 Bg2 Nf6 g8B Nh7 Bc3 Bg7 Qf1 Nf8 Ne2 Qc5+ Nd4 Rh7 Rg1 h1Q Bc6 h2 Rb2 Bh3 Be4 Na2 Nc4+ Kd7 Ne3 c1B Rc2 Kd6 Ne6 Nb4 Bf6 Bd2 Bc6 Bh8 Bd5 Re7 Ng7 Nbd7 b8N Rb7 Nc6 Nb8 Nh5 Bg7 Ne5 Bh8 Qa1 Bg7 Rb1 Qd1 Bc6 h1Q Qa2 Qh2 Rbb2 Qdh1 Qf7 Bh8 Bg5 Bf6 Ng7 Qd1 Nd7 Bfc3 d4 Qdh1 Rb1 Ba1 Ne5 Qd1 Qh5 N8a6 Nd7 Nd5 Bf6 Ndc7 Ne5 Rb8 Nd3 Rb7 Ne1 Rb8 Kf1 f2 Qf7 Qdh5 Bf3 Rb7 Ke2 f1N Kf2 Rb8 Ba8 f3 b7 Nce6 Ng4 Nec7 Ne5 Ne3 Rb4 Ned5 Rb5 Qh1 Kg3 f2 Be4 f1Q Ng2 Qfc4 Nd3 Qh2+ Kf2 Rd8 Rb3 Q4b5 b8Q Qa5 Qa7 Rb8 Rb4 Rb6 Rb1 Nb8 Bf3 Rb3 Be4 Nb4 Beb7 Qh4+ Kf3 Qa6 Rbb2 Qh6 Ra2 Rb1 Rab2 Qhh5+
b1B2b1K/2q1Nq2/2BN1B1R/R1rbn1QP/pn1Q2Q1/4Q3/4q2k/1r1bn2q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 b4 d5 e4 g5 c4 a5 b6 f5 c5 d3 h3 Kg3 h4 d2 b7 a4 c6 f3 b5 f4 c7 d4 h5 d3 b6 f2 Bb2 f3 Bg2 f1Q Na3 f2 Nb5 Na6 b8Q Ne7 Kf6 Bb7 c8B+ Qc7 e5 Qe2 e6 f1Q+ Nf3 Nb4 Qa7 Bd5 b7 Nec6 b8Q Ne5 Qd4 Ra5 Nd6 Rc5 e7 Rg8 Qc1 d1B e8Q d2 Rb1 Ba8 Qcc4 Bb3 Qbb5 d1B Rg1 Qff2 Qce6 Bbd5 Qf5 Rg7 Nh4 Kh2 Ng6 g3 Ne7 g4 Bf3 g2 Qff4+ g3 Qg4 Qff1 Rc1 Rc6 Rc5 Rg5 Ba1 Rb6 Rc6 Rb7 Ra6 Rb6 Ra5 Qff2 Re1 g1Q Qbc5 g2 Qc1 Rg8 Qcg5 Qh1 Bc3 g1N Ba1 Bc2 Rc1 Bd1 Rc6 Ned3 Bc3 Ne1 Bb2 Rh8 Kg6 Rg8+ Kh7 Qff1 Bg2 Ngf3 Ba1 Rg6 Kh8 Ne5 Bc3 Rb5 Bb2 Rc5 Rb6 Bg8 Bc6 Qf7 Qd5 Rf6 Qd8 Bb3 Qde4 Qe6 Nc4 Nd7 Qef3 Ned3 Qfe3 Rf1 Bd5 Rb1 Bd4 Qf5 Rh6 Bd1 Bc6 Ne1 Bg7 Qe6 Bf6 Ne5 Qdd4 Bf7 Nd6 Qed7 Nd5 Qe8 Ne7 Bd5 B6d7 Qg6 Bc6 Qf7
b2B2kr/1nN1b3/n1qNbR2/n1bNqPn1/p1QQr1B1/Nr1Q3R/8/6K1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 e5 f4 h5 Kf2 d5 c4 a5 g5 a4 c5 e3+ Kg2 d3 b6 e4 b5 e2 c6 e1R b7 e3 f5 d2 c7 d4 b6 e2 Rh3 d3 Nc3 Qe8 Nb5 Na6 b8Q Be6 c8Q Bc5 b7 Ne7 g6+ Kg8 g7 Nc6 Qc2 d1N Bf4 d2 Bh6 Nb2 Be3 d1N Bg5 Nc3 Qf4 Nd8 b8N Nc4 Nd6 Nb7 Nf3 Nca5 Rb1 Ne4 Bd8 Ng5 Rb6 Rb1 Qcd2 e1B Be2 Rb3 Qd3 Beb4 Ne5 Qc6+ Kf1 Qe4 Nec4 Qe5 Bg4 Ba3 Rh1 h3 Qfd4 h4 Kg1 Bab4 Na3 h2+ Kf1 h3 Qc6 Kh7 g8N Kg7 Nf6 Ra7 Rg1 h1Q Nd5 h2 Kf2 Kh7 Rg3 Kg8 Rh3 Qhe4 Qcb5 h1B Qbc4 Ra8 Kg1 Bf3 Nc7 Qc6 Nd7 Rh4 Ndb5 Be7 Nd6 Bc5 Nf6+ Kf8 Nh5 Kg8 Nf4 Rb8 Nfd5 Bh1 Bf3 Re4 Bg4 Qb5 Nde8 Re3 Rh4 Bd7 Rf6 Nd6 Qb1 Be6 Nf4 Ba8 Nfd5 Qc6 Rh3 Ndb7 Nd6 Kg7 Qbf1 Re4 Qfd3 Bf8 Be7 Re8 Bd8 Be7 Qcc2 Rh8 Qcc4 Kg8
2Qb2r1/4q2Q/Q2N1brr/Q2BP3/pq1k1N2/B2b1R1q/KbnRqn1R/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Ke5 c4 d5 Kc2 f5 Kb3 a5 e4 g5 h5 a4+ Ka2 f3 c5 f2 c6 f4 b6 d3 h6 f3 b5 g3 c7 d2 h7 d4 b7 d3 b6 g4 Qc2 d1R Qc6 g2 Qb5+ Kd4 e5 d2 Rh3 g3 Qa6 Bg7 Be2 f1Q Bd3 f2 Ba3 Bf5 c8Q Qe2 Rh6 f1Q Qc7 Bf6 Bb4 Qe7 Ka3 Nc6 Nh3 g1B b8R g2 Bc4 Bd3 b7 Bf2 Rc8 g1B b8Q B2h4 Nf4 Qh3 Qca5 Bgf2 Bb3 Rg1 Ra2 d1Q Bd5 Rg6 Rd2 Qde1 Ka2 Bg1 Rh5 Nh6 Ba3 Ng4 Rf8 Nf2 Qbc8 Rhg8 h8Q Nb4+ Ka1 Nc2+ Ka2 Rb8 Qh7 Rb6 Nc3 Re6 Ne4 Bhg5 Rd1 Q1b4 Nd6 Rh6 Ng6 Bc1 Nf4 Bb2 Rh4 Bh8 Rd2 Reg6 Rg4 Bf6 Rg2 Bh2 Rf7 Bg3 Rh2 Bgh4 Nh5 Bg7 Rf3 Bgf6 Nf4 Qee6 Ne8 Bd8 Nd6 Qe7 Q5b5 Bg5 Qba5 Bf6
8/N3Nr1b/n6n/Q3pqr1/1n2qR1Q/Pr2Br1q/Qb1nQK1k/3RBB2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kd7 d4 Kd6 g4 c5 a3 b5 f5 h5 g5 e3 g6 e2 f6 c4 g7 c3 f7 c2 Qd2 b3 Qe3 b2 Qc3 h3 Bh6 c1N Qe3 h2 Nc3 b1N Qg5 h4 Qg4 h3 Ra2 b4 Qh4 b3 Na4 b2 Qf2 Bf5 Nc5 Ra5 Na6 Qc8 Nc7 Bh7 Bg5 Nd2 Nf3 b1R Ne5 Rb3 Ng6 Na6 Be3 Nh6 g8Q Bg7 f8B Qf5 Ra1 Na2 Rd1 N2b4 Nb5+ Kd7 Na7 Kd6 Rg1 h1Q Rg4 h2 Rf4 Qhe4 Qh4 h1Q Kf2 e1R Qh2 Kd7 d6 e6 d5 Bb2 Qh4 Qhh3 Ne7 e5 Qf7 Rg8 Qg4 Rc5 Qe2 Rg3 Qg8 Rc7 Qe6+ Kd8 d7 Rb7 Qf7 Kc7 Qg8 Kd6 d8Q+ Rd7 Qa5 Rb7 Bg2 Rg1 Bf1 Rg5 Qf7 R1g3 Qg8 Kd7 d6 Rc7 Qgc4 Rb7 Qc2 Ke6 d7 Rc7 d8Q Rd7 Ng6 Rf7 Bfc5 Bd4 Qa2 Bb2 Ne7 Kf6 Bcd4 Ke6 Bc3 Kf6 Nec6+ Kg6 Rf3 Kh5 Ne7 Kh4 Rf4+ R3g4 Ke1 Kg3 Qh8 Qeg2 Qhd8 Kh2 Qh8 Rg3 Qf6 R5g4 Qh4 Rg5 Qeb5 Qge4 Kf2 Nb1 Be1 Nd2 Qe2 Rf3+
3q4/b2rb2n/3Br3/2RBpQ2/K2Q2PR/bN2Rr1q/q2rbR2/n3kNQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 a5 Kb3 h5 c5 e5 g3 d5 c6 a4+ Kc2 a3 Kb3 h3 c7 a2 b6 d3 b7 h2 Qd2 Kg4 f5 d4 f6 h4 f7 h3 Qf2 e3 Bg2 e2 Bd5 e1B Nd2 Rh6 Ndf3 d2 Qg2 d1R Qf2 d3 Bc4 d2 Qa7 Bf2 Ne2 Na6 b8Q Nf6 Bd5 Nh7 Nfd4 Re6 Ka4 Nb4 Nb3 Nc2 Qb6 Be7 f8Q Ba6 c8R Bd4 Rb1 a1B Rc5 Rc8 Rf1 h1Q Rf2 h2 Qb4 Kh3 g4 Qg2 Qf5 h1Q Ng3 Be2 Nf1 Kh4 Qab6 Qhh3 Qc3 Be3 Qd4 Rc7 Qa7 Rd7 Qb6 Re1 Qa7 d1R Bd2 Red6 Bb4 Re6 Rc1 Qgh2 Rc3 Rd3 Bd6 Red1 Rc5 R1d2 Re1 Bh6 Qb6 Rf3 Qa7 Bhf8 Qb6 Bc4 Re3 Q2g2 Nc1 Bd3 b4 Be2 b5 Bc3 Nb3 Na1 Qa7 Bb4 b6 Ba3 b7 Bh6 Nh2 Kg3 b8R Bf4 Rf1 Bfg5 Rh1 Kf2 Nf1 Ke1 Ra8 Qb6 Rf8 Qd8 Rh2 Bh4 Rf6 Bf2 Rh6 Qgg3 Rh4 Qf4 Rg2 Qe4 Qb6 Qb1 Rh2 Bg1 Rf2 Qa2 Rc8 Qg2 Re4 Rh6 Qdb4 Rc3 Rff4 Bh2 Qe3 Bg3 Qg1 Bf2 Rf3 Ba7 Rf2 Rh3 Qd4 Re6 Rc5 Rf3 Re3 Qh3
1Q1Kq1n1/rQB1nr1b/3N1B2/3P1R2/1bn1Rp2/1B3NQ1/1r2Br1q/kn3q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 d4 h5 e4 a5 g5 f5 g6 a4 g7 f3 b6 f4 b3 c3 d5 h3 b7 h2 Qd4+ c4 Qd3 f2 Nf3 h4 Qe2 a3 Bd2 a2 Nd4 h3 Bg2 f1N Nf5 Rh7 Nd6 Ne3 Bf3 Bf5 Qf2 Bg6 Ke6 Nc6 b8B Nce7 e5 Ra7 Be2 Qe8 Qg3 Be4 Bc1 c2 Nd2 c3 Nf3 Nc4 Bb2 c1N Bc7 c2 Bc3+ Ka3 b4 Nb3 b5 c1Q b6 Qc2 b7 Nbd2 b8Q Nb1 Qb7 Bd3 Re1 h1R Rg1 h2 Re1 Qa8 Kd7 Rf1 e6 h1R Bf6 Rf2 Rg1 R1h3 Rh1 R3h6 Rh5 Qb2 Rf5 Rhh2 Ba5 Qe8+ Kc7 Nc3 Re1 a1Q Bb6 Ka2 Ba5 Qeb5 Kd8 Nb1 Bc7 Qa4 Bd1 Qc6 Re4 Qe2 Bc2 Qb2 Bb3+ Ka1 Be5 Qf1 Bf6 Nh6 g8B Rf7 Bh7 Nhg8 Bg6 Qb5 Bh5 Qa4 Bh4 Qh8 Bf6+ Rb2 Bg4 Rf2 Bh5 Qc6 Bg4 Qh2 Bh5 Ng6 e7 Qa4 e8Q Qb5 Nc8 Bb4 Nd6 Qa4 Qeb5 N6e7 Qb8 Bc2 Q5b7 Qb5 Ne1 Qc6 Be2 Bd3 Nf3 Qa4 Ba5 Qe8+ Kc7 Nc8+ Re7 Qfg1 Rg5 Qc6+ Kd8 Bh7 Re4 Nce7 Rf5 Qf1 Bc7 Qe8+
RqN3Rr/Q3Q2Q/2q1B1Q1/KN1p3n/4b3/1bP1B3/1bb1qr2/kN2qn1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 e4 Ke5 g4 d5 g5 f5 b6 h5 b5 a5 b7 f3 b6 h3 g6 f2 g7 d3 Kc3 d2 Bc4 f1Q Ne2 h2 Na3 a4 Ng1 f4 Ra2 h4 Qg4 d1B Bd3 f3 Nb1 a3 Be3 h3 Qh4 f2 Nd2 Ne7 Kb4 Nd7 g8N Nf6 Bc4 Bf5 Bb5 Qe1 Qh7 f1Q Bd7 Bg7 Be6 Nh5 Ne2 Qb8 Nc3 Qfe2 Rg1 h1R Nb5 h2 Ra1 a2 Rg2 Ng6 Ne7 Ng3 Nc8 Nf4 Qg6 Nf1 Rg4 Qc7 b8Q Nh5 Qa7 Qc6 b7 Rf8 Ka5 Rf6 Ncd6 Rh8 b8Q Qg3 Qh7 Bg6 Qba8 Rf2 Qd8 Qf4 Rg3 Qf8 Qde7 Qb8 Nc8 Bf6 Rb1 Bf5 Rb2 a1Q+ Ra2 Qc1 Nb1 Qcd2+ N5c3 Qde1 Rg5 Rg1 Rg8 h1B Qeg7 Bf3 Qgg6 Rh1 Ra3 Be7 Ra2 Ba3 Ra1 Bb2 Ra2 Nd2 Nb5 Nf1+ c3 Bb3 Bc5 Kf4 e5 Ke4 Be3 Kd3 Qb6 Kc2 Bd7 Qcb7 e6 Nd2 e7 Qc6 e8Q Nf1 Be6 Bg2 Ra1 Ba3 Ka6 Kb2 Qd8 Bfc2 Qde7 Bb4 Ra5 Ba3 Ra4 Ka1 Ra5 Qe8 Qbb7 Bf3 Kb6 Bfe4 Ra8 Qc6+ Ka5 Bc1 Qa7 Bb2
6n1/NKbbRbn1/B3BQ2/2Qpr1R1/3b3P/qr1q1R2/1r3N1n/k4nBB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 h4 f5 e4 g5 b4 a5 c3 g3 b6 d3 Kb5 g4 c4 Kd4 c5 f3 b7 a4 e5 g2 c6 f4 e6 d2 c7 f2 Kb6 f3 e7 g3 e8B a3 b5 a2 Bd3 f1N Bdg6 f2 Bc2 Ra3 Be4 Rh5 Qc2 d1B Bf7 Re5 Be6 Nc6 b8Q Nce7 Nc3 Rb3 Nh3 Nh2 Rg1 f1N Nf2 Bh5 Qa8 d6 Qa6 Bd7 Kb7 Bf7 c8B Nf5 b6 Ng7 Bg5 Rb2 Re1 a1Q Re3 Qa3 Rf3 Be7 Bh6 Bg5 B4d5 Bc1 Qf5 Bf4 Nb5+ Kc5 Na7 Kd4 Qf6 Rb3 Qb5 Rb2 Nd3 Kc3 Nf2+ Kc2 Qa5 Kb1 Qc5 Ka1 Bg5 Be3 Bc6 Bd4 Be3 Rb3 Ka8 Rb2 b7 Rb3 b8R Rb2 Rh1 g1R Rb5 g2 Kb7 Rb3 Qc4 Bb6 Qc5 Bc7 Bcd5 Ng4 Rhh3 Ngh2 Rhg3 Rh1 Rg5 g1B Rb4 Rb2 Rb3 Ng4 Bd4 Rh3 Re3 Ngh2 Bh1 d5 Rf3 Qf8 Rb5 Qd3 Rb6 Bb5 Rd6 Rg3 Rd7 Qd6 Re7 Bd7+ Ka8 Q6a6 Bb7 Qaa3 Ba6 Rg4 Be3 Rgb4 Bd4 Bb6 Kb7 Rb3 Nh3 Bf2 Be3 Bg3 Bg1 Bf4 Nf2 Bc7+ Qb5 Be3 Qb6 Bd4 Qb5 Bcb6 Qc5 Bc7+
2B1NB1K/qR2b3/b2Q1q1r/3pb3/1N3rP1/2Rn1n1k/2nB2N1/Nq2Qbq1 w - - 0 1 illegal: No possible last move
1N1QQ1Bn/3n2R1/bn4r1/bPr1b3/1p1Q4/2R1r1Nr/NK1B1bkN/6qq w - - 0 1 illegal: No proof kernel
b1Q3nq/3rqQ2/R1bBN3/rp3B1N/k3rN2/2bn1QPn/b5K1/R3n2Q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 e4 h5 a4 f5 d4 c5 e5 c4 d6 Kc6 e6 h3 a5 Kb5 e7 b3 e8Q+ Bd7 g3 h4 d5 h2 a6 h3 a7 b2 Qeh5 f3 Qg5 f4 Qd3 Bg7 Bd2 Rh4 Na3+ Ka4 Ra2 b1B Be1 b5 Qf6 c3 Qh7 c2 Qe6 c1N Qf6 Qe7 Qf7 Bc6 d7 Na6 d8N Bc3 d6 Nb4 d7 Nc2 Bd3 Rg4 Bf5 Nd3+ Kf1 f2 Ne6 Rg7 Ra1 Ba2 Ne2 Re8 Rg1 h1Q Nc4 h2 Nd6 Ra8 d8Q Rg4 Qdf8 Rd8 Nc1 Rd7 Ne4 Rh4 Qc8 Rg4 Ke2 f1R Nf6 Ba8 Nh5 f3+ Kd1 f2 Ne2 Re4 N2f4 Bc6 Rg2 Rg1 Qh6 f1B a8Q+ Ra7 Re2 Ra5 Re3 Bh3 Ke2 Bg2 Bd2 Rd1 Qhf6 Ne5 Kf2 Bf3 Bc1 Rd7 Ba3 Bg2 Bd6 Nd3+ Ke2 Qg1 Qh4 h1N Qh3 Nhf2 Qh1 Qh2 Qab7 Bf3+ Kf1 Qhh4 Re2 Nh3 Rh2 Be2+ Kg2 Qhf6 Qba8 Qh8 Qab7 Ng1 Rh4 Nh3 Rg4 Bd1 Rg6 Bf3+ Kf1 Bd5 Nc7 Rc4 Be5 Qg7 Ra6 Qh8 Nce6 Rb4 Bd6 Rd4 Qbc7 Ba8 Q7b7 Rc4 Qe4 Rb4 Qe2 Bfc6 Qef3 Re4 Kg2 Nce1+
1RnN2b1/2r3Rq/1N2n2b/P1k2bq1/1npn1Q2/r2B1Q1K/NB2r3/1B2r1N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kd6 e4 c5 a4 f5 g4 h5 Kg2 b5 g5 f3+ Kh2 h3 g6 h4 g7 c4 Bd2 f2 Ra3 f4 Bc1 f3 Bg5 b3 Bd3 f1R Ne2 f2 Bd2 b2 Nc1 b4 Ne2 b3 Ba5 Be6 Ra1 Re1 Nbc3 b1Q Na2 f1R Bc3 b2 Rg1 Ne7 g8B Nc8 Bh7 Na6 Rg7 Rf7 Ng1 Qg5 Qf3 Nc5 a5 Rc7 Bf5 Bg8 Bg6 Ne6 Bf5 Qbc1 Rb1 Rb8 Bh7 Rb3 Bg6 Ra3 Bf5 Qe7 e5+ Kd7 d6 Qg5 Qf4 Kc6 d5+ Kc5 d7 Rh6 d8Q Rf6 Rg6 Bh6 d6 Qh7 d7 Rf8 Qf6 Re8 d8N Ree7 Rc1 b1B Bb2 Re8 Rg7 Re2+ Kh1 h2 Rc3 Bc2 Rb3 Ree7 Rb8 Re1 Bg6 Re8 Be2 Bf5 Bd3 Ree7 Qg4 Re8 Kg2 h1N Kh3 Ng3 Qf7 Ne2 Qf6 Nf8 e6 Nd4 e7 Nfe6 Qf8 Be4 Qff3 Bf5 Kh2 h3 Qgf4 Qf6 Kg3 h2 Bb1 h1N+ Kh2 Bg4 Bgd3 Nf2 Kg3 Bf5 Kh2 Rf8 e8N Qg5 Nf6 Re8 Nd5 Ree7 Nb6 Re8 Bf1 Nd3 Be2 Nb4 Bed3 Bg6 Kh3 Bf5+ Q4g4 Nf8 Qf4 R8e2 Qf3 Nfe6 Qf4 Be4 Qgf3 Bf5+
1BN2Rn1/n2r3b/Nb1r2NP/2q2Brk/3Q2R1/QnrbQ2q/p2b4/3K3N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 f5 e5 Kf7 h5 f3 b6 g3 c5 d3 b7 g4 b5 f2+ Kd2 f4 c6 g2 c7 g3 b6 d4 h6 Kg6 e6 a4 e7 a3 e8N a2 Ne2 g1Q Bb2 f3 Nf6 g2 Ba3 Bf5 c8N Bb4+ Nbc3 Qd7 Rh4 Ra5 Nd5 Nc6 b8Q Na7 Rf4 Kh5 b7 Bh7 Qa8 Qh3 Nc7 Rg5 b8Q Ba5 Kc1 Bb4 Qa4 d2+ Kd1 Ba5 Ne4 Bc3 Kc2 d1R Bd6 Bd2 Rg4 d3+ Kb3 Rd5 Qd4 Rg5 Qbb6 Rc1 Kb2 Rc6 Bg3 Rd6 Na6 Rd7 Bb8 Rd6 Nc1 Rd7 Be2 f1B Nf2 Rd6 Nh1 f2 Bd1 Be2 Qe3 f1N Bc2 Qf2 Qaf3 g1B Qbd4 Rd7 Qf8 Qf5 Qfb4 Qc5 Qa3 Qb5+ Qdb4 Be1 Qe6 d2 Nd3 d1R Ne5 Bb6 Nd6 Nd2 Ng6 Nf6 Qee3 Nb3 Be4 Qf5 Kc2 Rc8+ Qbc5 Rcc7 Nc8 R1d6 Rd1 Bc3 Qcd4 Ng8 Rf1 Bd3+ Kd1 Bd2 Rf2 Qb5 Rf8 Rc3 Bf5 Qc5
2N3r1/5b2/rQ1rbRnP/1qRb2qN/pN6/K2Qq1Bk/3bR3/3Rn1qB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 d5 Kc2 a5 Kb2 g5 b6 f3 b7 f2 e3 a4 h5 d3 c5 d4 b5 g3 c6 g2 c7 g4 b6 d2 h6 d3 Nh3 g1Q Ra2 g3 Ra1 g2 Qh5+ Qg5 Qd1 Na6 b8Q Be6 c8R Bb4 b7 Nc5 Nc3 Ne7 Rh2 Ra6 Nf4 Rg8 Na2 Ng6 Nh5 f6 Qb3 Kg4 e4 d1B e5 d2 Qd3 f5 Qc7 f4 b8R f3 Rb6 Bc3+ Ka3 Bdb3 Nb4 d1R Bf4 Bbd5 Bg3 Bd2 Rb1 Bf7 e6 Qe3 Be2 f1Q e7 Qg5 e8N Q1e3 Rd6 g1Q Qb6 Bde6 Rf2 Kh3 Rcc6 Bd5 Rf6 Bfe6 Rg2 f2 Bf3 Qfe2 Ra1 f1B Nd6 Bf7 Be4 Bde6 Rgf2 Bg2 Nc8 Qef1 Re2 Bf3 Qb3 Nd3 Rc5 Ne1 Bb7 Bfd5 Qd3 Qff4 Rb1 Qc4 Bc6 Qb5 Bb7 Rc1 Ra1 Rc4 Rd1 Rd4 Bc6 Bg2 Be4 Rd6 Bb7 Bgd5 Bc6 Bb3 Bh1 Bbd5
Q1q1n1NN/b3Nb2/r1R3p1/Br3R1b/6Q1/KN2n3/P1b1B1nk/Q2qn2r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 d4 Kd6 Kd2 c5 Kc2 f5 Kb3 b5 h4 g6 h5 g3 h6 g2 h7 c4+ Kb2 c3+ Kb3 c2 Qh5 f3 Ba3 c1N+ Kb2 f4 Rh4 f2 Rh1 f3 Be2 f1N Nh3 g1Q Ng5 f2 Nc3 Nd3+ Kb3 Nf6 Nd1 Ne3 Ne6 f1B Nc3 Nfg4 Rc1 Ra6 Nc5 Ne1 Qf5 Bh6 Rh5 Be6 Rg5 Nd7 e5+ Ke7 Kb2 b3 Bb4 Bf7 e6 Kd6 e7 Ndf6 Ba5 N3g2 Ka3 b2 Nb3 N4e3 Qg4 b1R Rf5 Qc8 e8Q Rb2 Qg8 Ne8 Qg7 Bg5 Rc2 Bh4 Rc1 Bf2 Ne4+ Kd7 d6 Ke6 d7 b4+ Ka4 Qh1 d8Q Bg1 Nf6 Bf2 Bd3 Be2 Ng8 Bf3 Be2 Qh5 Na1 b3 Ka3 Rb1 Rc2 b2 Nb3 Qh1 Qgg5 Bh5 Qg4 Qc7 Qb8 Qc8 Qa8 Qf1 d5+ Kd6 Rf6+ Ke5 d6 Bg1 d7 Qf3 Bb5 Qd1 d8N Bf2 Be2 Bg1 Qd7 Bf2 Rfc6+ Kf4 R2c5 Kg3 Qg4+ Kh2 Rb5 Bg3 Rd5 Bb8 Rf5 Ba7 Qc3 Rc1 Qg7 b1B Qa1 Rc5 Rcf6 Be4 Nc6 Rb5 Nce7 Bd3 Rc6 Bc2 Nf6 Rg8 h8N Rg7 Nfg8 Rh7 Qc1 Rh6 Qa1 Kg1 Qc4 Bf3 Nc1 Rh1 Nb3 Bh5 Qg4 Kh2
kr1b1q2/B2R2Rb/1nb1N1p1/3B1KR1/2Q1BP1q/5Nr1/1q1r1Qn1/q2b1R2 w - - 0 1 illegal: No possible last move, all moves rejected
3nBB1B/R1Qq2NK/B4Pb1/pb1n4/n3kqb1/8/3nqR2/1NbrQNr1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 Kf5 b4 d5 b6 e5 b5 a5 b7 h5 g3 e3+ Kd3 h3 b6 e2 c5 e1Q c6 h4 c7 e4+ Kc2 d3+ Kb2 h2 Be2 e3 g4+ Ke4 g5 h3 f5 d4 g6 d2 Kc2 Qf1 g7 Ba3 Bb5 e2 Be8 Nf6 g8N Qf4 Nh6 Qd7 Ra2 Nd5 Bb2 Nc6 b8B Rg8 b7 Nd8 Qe1 d1N Nf3 N1c3 Ba1 Bc1 Nfd2+ Ke3 Rg1 h1B Nf1+ Ke4 Rg7 h2 Ba7 Bf3 b8Q h1B Bc5 Ba6 c8B Bb5 Bf8 Bg4 Qc7 Na4 Ba6 Bhf3 Bb2 Bh5 Rf7 Rg1 Ba1 Bfg4 Rb2 Bc6 Rb7 Bg6 Ra7 Kf3 Kd3 Rc8 Kc4 d3+ Bd4 d2 Kd3 d1N Bh8 N1c3 Rf6 Ne4 Kd4 Qe3+ Ke5 Bb5 Rf7 Qf2 Rf6 Nd2 Rf7 Ndb6 Kf6 Ke4 Kg7 Nd5 Kg8 Qf4 Kg7 B6h5 Kh7 Rb8 f6 Rb6 Rg7 Rd6 Nf5 Bf7 Rg5 Bfh5+ Ng7 Bf7 Qf2 e1Q Rf5 Qe2 Qe1 Bg6+ Kg8 Qg5 Qd1 Ndb6 Nh5 Ndc4 Rf2 Qf4 Qe1 Rd1 Ng7 Nd2 Qc8 Nd5 Qc7 B6h5 Kh7 Bg6+
6rb/3N1b1r/BR2P3/4nQRq/q1Rn4/q3NnnK/2RB1p1N/b2Qq1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 e4 Kf6 b4 Kg5 c4 f5 g4 h5 Kg2 d5 c5 a5 c6 a4 c7 a3 e5 a2 b6 d3 b5 h3+ Kh2 Kh4 g5 d2 b7 d4 b6 f3 g6 f4 g7 d3 Ba3 f2 Bd6 f3 Qe1 d1Q Qd2 Nc6 b8R Be6 c8N Qe7 b7 Nh6 g8R Bf7 e6 Bg7 Qc3 d2 Na3 Nf5 Bg2 f1Q Na7 f2 Nc2 Rh7 Bf3 Ne5 Qe3 Nd4 Qe1 Bh8 Ne3 Qa4 Be2 d1Q Rc1 a1B Rc2 Qf8 Qa5 Qfe1 Bb4 Qd6 Bd2 Qda3 Rbc8 Rb8 R8c7 Re8 Rg7 Rg8 Ba6 Qg4 b8Q Qg6 Ng2+ Kg4 Nf3 h4 Ne3+ Kf4 Rf1 Qh5 Qb3 Ke4 Kh1 h2 Kg2 h1N Nc6 Ng3 Rg5 Ngf5 Nb8 h3+ Kh2 Nh4 R7c4 Kf4 Nd7 Ke4 Kg3 h2 Kh3 h1N Nh2 Ng3 Qb1 Kd3 Rg1 Ke2 Qd8 Nec6 Rb5 Ne5 Rb6 Qac1 Qg5 Qca3 Qf5 Nh1 Rg6 Ng3 Rg5 Rg6 Nhg4 Rg8 Nd5 Kf1 Nh2+ Kg1 Ne3 Ng4 Qc1 Ne5 Qd1 Nhf3+
RNbR3b/1nb5/Bq2pn2/1r2K3/bqN1P2R/3r1rQ1/2kNR1rq/Q6B w - - 0 1 illegal: No possible last move
rbR3Rr/r3Q3/b2p1q1n/1qB4R/qb1B4/2B2N2/k1NQ1rKP/b1n4B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 e4 g5 c4 a5 b6 f5 b5 d3 e5 f3 c5 Kd5 e6 Kc4 c6 g3+ Ke1 f4 b7 g4 e7 a4 e8Q a3 c7 a2 b6 f2+ Kd2 g2 Ne2 g1R Ng3 f3 Ke3 Qf6 Bb2 Nh6 Bc3 Nc6 b8B Na5 b7 Nb3 Qc2 Bb4 Ne4 g3 Bg2 f1R Qe7 d6 Ba7 f2 b8B d2 Bad4 d1Q Ng5 Ba6 Qd2 Nc1 c8R+ Kb3 Bba7 Qc2 Bb7 g2 Na3 Qd1 Nc2 Qg4 Qc7 Qd7 Nf3 Qa4 Bac5 Ra7 Nce1 Ka3 Rb1 a1B Nc2+ Ka2 Qh7 Rd1 Qg7 f1Q Qe7 Qfb5 Kf2 Rgf1+ Kg3 g1B Kg2 Bf2 Rg1 Rde1 Qh7 Ree8 Qe7 Nd3 Re1 Nc1 Re5 Rd8 Rc7 Rda8 Rc8 Ba5 Rh5 Bc7 Kh3 Bb8 Rgg8 Be1 Kg2 Bf2 Qg5 Qa3 Bb2 Bc7 Nfe1 Kb3 Kh3 Bb8 Bh1 Ka2+ Nf3 Qaa4 Kg2 Be1 Qge3 Ba5 Bbc3 Bb4 Qd2 Rf2+
4Bbbr/1K1Q1qR1/n2pb1Q1/1r1q3R/2kn1r2/1N3b2/Q2P3N/QnN1B1n1 w - - 0 1 illegal: No possible last move
R1N5/3B1rQn/2Pq4/1Rpb1N2/KRr1r1q1/Q2q2Bn/q1k2b2/R3Bb1r w - - 0 1 illegal: No proof kernel
3Qrb1N/3Qb1N1/2p2R2/3Nn1N1/5K2/5nRq/q1bqrnqP/1kBB1R1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 d4 Kd6 e4 g5 b4 a5 e5+ Kd5 e6 Ke4 e7 f5 e8N f3 Kg3 a4 d5 c3 b6 f4+ Kf2 a3 b5 g3+ Ke1 g2 Kf2 c6 b7 a2 b6 c2 d6 g4 d7 g3+ Ke1 f2+ Ke2 f3+ Kd2 Nh6 Ng7 Ng4 Bc4 f1Q Na3 f2 Ne2 g1Q Nb1 Qh3 Nf5 g2 Nf4 f1N+ Ke2 Rh4 Bb3 Nf2 Ne6 Ng3+ Kd2 Rh5 Nfg7 Re5 Ng5+ Kd4 Nc3 Re1 Rb1 a1Q Rb2 Qa2 Nd5 Qf1 Ba4 g1N Rb3 Qfg2 Rf3 Re8 Rf6 Ra5 Bb3 Rb5 Ba4 Rb2 Bb3 Be7 Ba4 Kc4 Ke3 Nf3 Rf1 Ngh1 Kf4 Bf8 Qe2+ Kd4 Qe6 Kd3 Qg4 Qe7 d8Q Nd7 b8R Qe1 b7 Nde5 Qgd7 Be7 Ra8 Qa5 b8N Qc3 Bd2 c1B Bd1 Qc2 Be3 Qd2 Ra6 Rc2 Rb6 Bca3 Rb3+ Qc3 Bc1 Re2 Qb7 Bg4 Nd7 Bf5 Nf8 Be4 Ng6 Bf8 Nh8 Bae7 Ba3 Kd2 Qbc7 Bc2 Qcd7 Qcb2 Rc3 Kc1 Rd3 Kb1 Rc3 Nd2 Rg3 Qc3 Bb2 Ndf3 Bc1 Qd2+
3qB1R1/k1bnbKr1/2pRr3/q1N2P2/n2Nb3/4B1n1/Q3RbnQ/2N3qN w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 a5 Kd4 h5 Ke5 c6 g4 Kc7 d4 Kb6 f4 c3 b4 a4 g5 a3 g6 e3 g7 e2 d5 e1B d6 a2 d7 c2 Ke6 h3 Bd2 c1B Ne2 h4 Ng3 h2 Kf7 e5 Qa4 e4 Bc4 h3 Nc3 e3 Nce2 Nf6 g8R Bf2 Rd1 Ne4 Nh1 Nc5 f5 Rh6 Rb1 a1Q Rb2 Re6 Qa2 Na4 Bb3 Kb7 b6 Be7 b5 Ra7 Rc2 Bb2 Nc1 e2 Be3 e1N Re2 Be5 Rd6 Ng2 Bd5 Bf4 Bf3 Qc3 Bh5 Qa5 Bg6 Ka8 Bh5 Ba6 Bg6 Qc8 d8N Nd7 b7+ Kb8 Rd5 Bc7 Rd6 Re5 Ne6 Qd8 Nd4 Re6 Ng3 h1Q Bh5 Qhe1 Nh1 h2 Bg6 Ra8 Bh5 Ka7 b8N Qg1 b6+ Kb7 Bg6 Bd3 Na6 Be4 Nc5+ Kb8 b7 Ka7 N5b3 Ka6 b8Q Ra7 Qb4 Rb7 Nc5+ Ka7 Qbb2 Be1 Nf2 h1N Qc2 Ng3 Nh1 Bf2 Re1 Rb4 Qcb2 Nf4 Kg7 Bg2 Nf3 Rbe4 Qe5 Nf1 Nd4 Bf3 Re2 Ng2 Be8 Rg4+ Kf7 Be4 Qh8 Ng3 Qh2 Rg7+
k1Nr2qR/n2RQNQb/1prQ2B1/2Q5/rN4Pq/1n1qB1Kb/1bq5/7r w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 e4 c5 a4 Kc7 g4 h5 d4 f5 a5 h3 e5 h4 a6 b3 a7 c4 e6 b2 e7 c3 e8Q c2 Ra5 f3 Bd3 f4 Ra6 b6 d6+ Kb7 d7 h2 d5 h3 d6 Nc6 Qh5 Nd4 Bg6 Ne7 Qb5 Nec6 Nd2 b1Q Bf5 Bg7 Ne4 Nb3 Be3 c1R Ne2 Bc3 Qd4 Bb2 N2c3 Qe8 Rd1 h1Q d8Q h2 Nd5 Rc5 d7 Qc2+ Bd2 Qe6 Qg7 Re8 Raa1 Qg8 Qde7 Rf8 Qd3 Rc4 Rab1 Rf6 Qc5 Ra4 Nb4 Rb8 a8N Na7 d8Q+ Bd7 Qde7 Rc6 Nc7 Rd8 Nb5 Ka8 Ned6 Be6 Bh7 Bf5 Nc8 Be4 Nbd6 Bg6 Rf1 Bf5 Rbd1 Bg6 Ke1 f2+ Ke2 Bf5 Nf7 f3+ Ke3 Be4 Kf4 Bg6 Rfe1 f1B Kg3 f2 Be3 Bg2 Qdd7 f1Q Qc7 Qfe2 Rd7 Qed3 Qc7d6 B6e4 Rf1 Bg6 Rf6 B6e4 Rh6 Qe1+ Kf4 h1R Bf5 Qh4 Rh8 Bh3 Bh7 Qh6+ Kg3 Bf5 Bg6 Be4 Bh5 Bh7 Bg6 Qh4+
1Kb2q1r/bN1B4/pk4r1/2r1B2Q/4PQq1/Qn1q3n/R1n5/1NB1RBqn w - - 0 1 illegal: No possible last move
Qn2rbq1/1RRq1bq1/pP3b2/q5Br/2nkN3/Nn5R/Q6R/1BnK3Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 h4 Kf6 b4 Ke5 c4 d5 h5 f5 h6 g5 h7 d3 b6 a6 c5 d2+ Ke2 g3 b7 g4 b5 f3+ Ke3 f2 Ke2 f4 b6 f3+ Kd3 d4 Kc2 d3+ Kc3 g2 c6 g3 c7 Nh6 Kb3 Nf7 Rh5+ Kd4 e5 Nd6 e6 Nc4 e7 Be6 e8Q Bf7 Qc2 d1Q c8Q d2 Be2 f1Q Rh3 f2 Bd3 Qfe1 Qec6 f1N Na3 Qg4 Qa2 Qg7 Kc2 d1N Qf3 Nf2 Bg5 Nfd2 Rc1 Nb3 Qh5 Qd7 Ne2+ Kd5 Bg6 g1B Nc3+ Kd4 Ne4 Nd3 Qh6 Qa5 Kd1 g2 Rh2 Ncd2 Rc7 Ndc1 Rh3 Nc4 Qh4 Rg8 h8R Be3 Rh7 g1Q+ Qe1 Qg2 Qh1 Rh8 Rh2 Bd2 R7h3 Rh5 Bh7 Bc3 Bf5 Nc6 b8R Qg3 Rbb7 Nb8 Nc5 Qg8 Bb1 Qe5 Ne4 Qeg7 Qd8 Nc6 Qe7 Re8 Qd8 Nb8 Qc8 Bcb4 Qd8 Bbe7 Qc8 Bf6 Qd8 Nc6 Qa8 Nb8
Br4R1/1rqr3P/1qN1k3/2Q4B/1N2n2q/Kq3r1n/NQ1b1pR1/3n1bBN w - - 0 1 illegal: No possible last move, all moves rejected
1R2b1nq/bR2b1kp/4Q1qn/1nN3B1/Q4P1r/1B5B/4N1q1/1NrbnB1K w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 g3 Nh6 b4 Kf7 c4 e5 g4 a5 f3 d5 Kf2 h3 b6 e3+ Kg3 e4 Kh2 d3 b5 a4 c5 d2 g5 a3 b7 a2 c6 e2 b6 e1B c7 d4 Ba6 d3 Bb2 e3 Bb5 e2 Bf6 Nd7 b8N Be7 b7 Qg8 Na3 Ra4 Na6 Bf2 b8Q Ba7 Rb1 a1Q Qb6 Rh4 f4 Qg6 Qa4 d1N Qe6+ Kf8 Bc4 d2 Rb8 Nc3 Bd3 Bb4 Bd8 Nf6 Bc4 Bd7 Bb5 Qc2 g6 Rg8 Bc4 Be8 Bb5 Rg7 Bc4 Rf7 g7+ Kg8 Bb5 Qg6 Bc4 Nfd5 Bg5 Nf6 c8B Bf8 Qe3 Qb2 Bb5 Rc7 Bg4 Rc4 Nc5 Be7 Qe4 Kf7 g8B+ Kf8 Bd5 Nfg8 Qe6 Qa1 Nf3 Qb2 Rb1 e1N Nd4 d1B+ Kg1 Qa1 Rb4 Qb2 Nb1 Qa1 Ba6 Qb2 R4b7 h2+ Kf1 Qa1 Bh3 h1Q+ Kf2 Qhe4 Kg1 Qb2 Bb5 Qe5 Kh1 Qh8 Ba6 Kg7 Bb5 Ne2 Ba6 Rc1 Bb3 Nc3 Bf1 Qf2 Ne2 Nb5 Qec4 Qg3 Qe6 Qg2+
1rr1k1KN/4q1rp/P1r5/B1b1RB1q/b1B1QNn1/3QR2q/3n1qB1/3b2N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 c5 Kf3 b5 Ke4 f5+ Ke5 c4 d4 b3 g4 b4 a4 c3 e4 c2 a5 f3 a6 f2 d6 b2 d5 b3 g5 f4 g6 f3 g7 h3 Ra5 h2 Qd4 Be7 Bd2 c1R Nc3 b1Q Bg2 f1Q Nce2 b2 Nf4 Nf6 g8B Nbd7+ Ke6 f2 e5 Ng4 Qe4 Qbd3 Bc3 Ndf6+ d7+ Kf8 d6 b1B Rc5 Qh3 Ba5 Bc2 Rc3 Qc7 Re3 Bd1 Bf7 Bb7 d8N Bc6 d7 Bc5 Bg8 Qb7 Nf7 Rc8 d8Q+ Be8 Qdd3 Bea4 Nf3 Qe2 Re1 f1R Ng1 Qf2 R1e2 h1Q Re1 Nd5 R1e2 Nc3 Re1 Nh2+ Kf6 Rc2 e6 Nb1 e7+ Ke8 Kg7 Nd2 R1e2 Qe6 Re1 Ng4 R1e2 Qh3 Re1 Qbd5 R1e2 Kd7 e8B+ Ke7 Bc6 Qdh5 Bd7 Rb8 Bc8 Ke8 Re1 Qe7 Bf5 Qe6 Ne5 Qd6 Bc4 Qe7+ Nf7 Ba7 Bce6 Rc6 Bc4 Bc5 R1e2 Rf8 Re1 Qe6 Nh8 Rf7+ Kg8 Qe7 Bb6 Rcc8 Bc7 Rf6 Bb6 Rfc6 Ba5 Bab3 Qe5 Ra8 Re4 Q5h4 Nh5 Qe2 Bfe6 Rf7 Nf4 Qef2 Bf5 Ba4 R1e3 Rab8 Qed4 Qh6 Re5 Q6h5 Q4e4 Rg7#
5n1B/3Q2P1/2q1b2k/RBNq4/4r1Q1/1n1bbN2/KN2p1bn/qRrRnN2 w - - 0 1 illegal: No possible last move
q1k4K/rN3Rpr/b1r2nNQ/4NP2/Qn5B/b2b1q1B/1Qq1q2N/3b3R w - - 0 1 illegal: No possible last move
rn6/2Nq2p1/rNBPq1kn/2q2r2/1n2KR1R/3B2b1/2Q3r1/BRQb2Bn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 a5 e4 f5 d4 Kf7 b4 c5 h4 c3 b6 f3 Ke3 c2 b5 g3 h5 a4 e5 f4+ Ke4 f2 h6 a3 e6+ Kg6 b7 c4 b6 g2 e7 c3 h7 f3 d5 a2 d6 Ra6 Bd3 f1N Nh3 g1R Na3 f2 Ng5 Nh6 Ne6 Qd7 Rb1 a1Q Rh4 Rg2 Rf4 Qa2 Bb2 c1N Nc4 c2 Ba1 Qb3 Qe2 Na2 Nc7 c1Q Qc2 Rg8 h8R Nb4 Na3 Qf7 e8B Be7 Nc4 Bh4 Rh7 Bg3 Rh8 Qa4 Bc6 Bg4 Rh7 Bd1 Rh8 Nd7 b8B Qca3 Ba7 Ra8 b7 Nb8 Nb6 Qe6+ Be5 Qc3 Qc1 Qc5 Qc2 Nd7 b8Q Qab5 Qc8 Nb8 Bb7 Qbd7 Bc6 Nh2 Qc1 f1R Rh7 N2g4 Rh8 Ng8 Rh4 N8h6 Qg8 Qf6 Qb3 Qfe6 Qbc2 Rf3 Rf7 Rf5 Rf8 Rg5 Rf4 Rf5 Nbd5 Qa5 Bg1 Qb5 Nb6 Nf2+ Kd4 Nh1 Ke4 Qb3 Bf6 Qc5 Ba1 Qbe6+
Nn4b1/Q4P2/p4b2/1qr2N2/nKR1Q1qN/BBRq3r/3kb3/1rr2bNQ w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 e5 g5 h5 f5 d3 Kc3 h3 g6 e3 f6 Ke4 g7 d5 b6 h2 b7 d2 b5 h4 b6 h3 Bc4 a6 Bb3 d4+ Kc4 e2 c3 Ke3 Qe1 e4 Na3 d3 Nb1 Be7 Ba3 d1B Bc1+ d2 Qf1 e1R Ba3 Qd7 Ra2 Qg4 Rc2 Rh5 Qg2 Rc5+ Kb4 Be2 c4 d1Q Nd2 Be6 Ndf3 Qd3 Rc3 Rc1 Nh4 Kd2 Qf3 e3 Qe4 Bf5 f7 Nf6 g8Q Nfd7 Qh8 Bf6 Qh6 Bh7 Qh5 Rc8 c5 Bg8 c6 Nc5 c7 Na4 Qh8 Bf1 Qh7 e2 Rc4 Re8 c8N e1Q Nd6 Qee2 Ndf5 Re5 Qh8 Rc5 Qh5 Nd7 b8Q Rb1 Qbb7 Rac8 Qa7 Nb8 b7 R8c7 Rd4 Rcc1 Rc4 Rc5 Qc6 Nd7 b8N Qe5 Qe4 Qe8 Nc6 Nb8 Nce7 Qed7 Nc8 Qc6 Ne2 Qcd7 Rg1 h1B Rg3 h2 Nb6 Bf3 Na8 h1R Ng1 B3e2 Qh7 Rh3 Re3 Qc2 Rec3 Qcd3 Qh5 Qg7 Qhf3 Qg4 Qh1 Qb5#
3bK1b1/1B1n1p2/b1R2r1k/1QR2PN1/4qrr1/1q1n1Q2/b1nB3N/2RR1nN1 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 h5 Ke3 e5 c4 a5 g4 h3 f4 h2 d4 b3 b6 b2 b7 a4 d5 a3 g5 a2 c5 h4 g6 h3 g7 Qb6 d6 Ra6 Qe1 Nh6 g8N Ng4+ Kd2 e3+ Kc3 e4 Kc4 e2 Kd5 e3 c6 Qb3+ Kc5 Nd7+ Kd4 Rh4 b8Q Be7 c7 Kf8 Qd1 Kg7 Nh6 e1Q Bg2 e2 Bd2 Bd8 Qb5 Ne3 Ng4 Nf1 Nc3 b1B Bb7 Bh7 f5 Bg8 Rc1 a1N Ne4 Ra4+ Rc4 Nc2+ Kd5 Rh6 Kc6 Rf6 Ng5 Rb4 Rc5 Rf4 Ba8 Ba6 c8R Qh4 Bb7 e1N Qf3 Nd3 Ne2 Qe1 Rg1 h1R Nh2 Kh6 Rc7 Nfe3 Rf1 Qeb1 Rc1 Rg1 Rc8 Rgg4 Ng1 Nf1 Rc7 Qe6 Rc8 Qbb3 Rc7 Be7 Rc8 Qe4+ Kc7 Bf8 Kd8 Be7+ Ke8 Nfe3 Nf1 h2 R8c6 h1B Nh2 Bg2 Bc8 Nf1 Bb7 Nf8 d7 Bh1 d8R Nd7 Re6 Bg2 Rdc8 Bd8 R8c6 Qec4 Red6 Bh1 Qf2 Bd5 Qf3 Qcb4 Re6 Qd4 Ree1 Bc4 Red1 Qe4+ Re5 Be6 Rec5 Qb1 Rb6 Ba2+ Re6 Qc4 Rb6 Qbb3 Rbc6 Qe4+
5qQ1/Q3p3/2nb2rk/2nb2rq/2bN1B1n/1R1PQ2r/3R3N/nB1RK1bQ w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 b4 Kf7 g4 Kg7 f4 h5 f5 a5 g5 c5 d3 e3 b6 e2 b5 c3 b7 a4 g6 c4 b6 c2 Ra2 a3 Kf2 e1R Nd2 h3 f6+ Kh6 g7 h4 f7 c3 Rh2 Ra5 Ra1 a2 Qf3 Be6 Rg2 h2 Rg4 h1Q Qe2 h3 Ba3 c1B Rg2 c2 Bd6 h2 Ndf3 Bf4 Rd1 c1N Nd4 a1N Ngf3 Bc4 Qe3 Ncb3 Be2 Nc6 b8Q Nc5 b7 Rg1 Qa7 Qa8 b8R Rb5 Ng5 Be5 Bc7 Bd6 Bg4 Ra5 Rb3 Qe8 Be6 Qd8 Rg4 Qd5 Rd2 h1B Ngf3+ Qg5 Rf4 Qh5 Nh2 Rg6 Ke1 Bhd5 Rg4+ Kh7 Rg3 Nh6 Rg1 Nf5 Bb8 Nh4 Rh1 Rg5 g8Q+ Kh6 Rf1 Bg7 f8Q Rh7 Qff3 Ra6 Qh1 Qf8 Rg1 Bc7 Bf7 Bb6 Bf4 Be5 Rgg2 Bd6 Rd1 Rg7 Be6 Rg6 Rgd2 Ra2 Rg2 Rf2 Bf7 Rf3 Rgd2 Rg3 Rb4 Ne4 Ne2 Rh3 Qg3 Bg1 Nd4 Bb5 Qe3 Nc5 Rbb1 Bg2 Ba2 Bf3 Rb3 Bc4 Bb1 Bfd5
R2Qb3/2n1p3/1K2rqBQ/4RBRn/NB4Pr/5rq1/2NBqk1r/4b1nn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 c4 Kg5 b4 Kf4 f3 Kg3 b6 d5 f4 h5 b5 a5 f5 a4 c5 h3 c6 d3 Ke3 d4+ Kd2 a3 c7 e3+ Ke1 e2 Kd2 e1N f6 h4 b7 a2 b6 h2 f7 h3 Bg2 Ra3 Ne2+ Kf2 Ng1 Bg7 f8B Nf6 Nf3 Nh5 Nc3 Na6 b8Q Qd6 b7 Bd7 c8B Bc6 Na4 Nc7 Bf5 Qg3 Qd8 Bf6 b8R Bh4 Rg1 h1N Ra8 h2 Bg7 Rb3 Rb1 a1Q Ba3 Rh6 Bb4 Re6 Bh6 Rc3 Qc1 Ra3 Kd1 d2 Bf1 Rb3 B1d3 Rc3 Bg6 Rc2 Bdf5 Rb2 Ng5 Nf3 Re1 Ng1 Nf3 Rb3 Kc2 d1R Re4 Re3 Rb2 d3+ Kb3+ Rd2 Ne1 Rf3 Kc4 Re2 Kc5 d2 Rc2 d1Q Kb6 Qf6 Rc5 Rc2 Qg5 Qe2 Ree5 Kf1 Nc3 Qe4 Rc4 Qgf4 Rec5 N1g3 Na4 h1R Rd4 Rg2 Nc2 Qe2 Be4 Rh3 Rd3 Rgh2 Rdd5 Nh1 Rf5 Kg2 Rce5 Be1 Bd3 Qg3 Qh4 Ng7 Bhd2 Kf2 Qh6 Rh4 Rg5 Nh5 Bdf5 Be8+
B1Rn2nr/2NP4/1B1Rq2B/RnQ3N1/1b1p1qb1/Q3rr2/r5b1/1RK2k1n w - - 0 1 illegal: No proof kernel
n4QRK/q1bP4/2bN2QR/r2NB1n1/1BNp1b1r/n1n5/1BB2q1b/4kr2 w - - 0 1 illegal: No proof kernel
2B2b2/3p1Kn1/1k4rq/2R2qRB/B2nQRb1/PbrqNq1N/7B/Q1n4n w - - 0 1 illegal: No possible last move
B6k/bnp5/q1K3br/QNB2P2/qR1rr3/2q2q1n/Qb1NB1Q1/R2B3b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 b5 g4 e5+ d6 e3 d4 e2 a4 e1R f4 h3 a5 e4 g5 h4 a6 h2 d5 h3 a7 b3 g6 e3 Ra6 e2 Ba3 b2 Qc2 b4 Nf3 b3 Nd4 Qd7 Qc1 Nh6 Ra4 Na6+ Kc4 Nf7 Nd2 b1Q Qd1 b2 Bb4 Qa2+ Qb3 b1Q Ra5 Qda4 d7 Nc5 d8Q Qba1 d6 Ng5 Kd5 Rh6 d7 Nb7 Bc5 Qc3 Rb5 Kh8 Kc6 Q2a3 Qe7 Bg7 Qa2 Qa6+ Rb6 Q3a4+ Nb5 Rb8 Rg1 h1B+ Qe4 h2 a8B Nh3 Qf3 Rd1 Qg2 e1B Be2 Bf2 Rf1 Re1 Bd1 Re8 d8Q Bf5 Qg5 Rbd8 Be2 Bd3 Ra1 Re4 Qe5 Rdd4 f5 Bc4 Bd1 Bf7 Be2 Bf6 g7+ Kh7 g8B+ Kh8 Qg4 Rd5 Qd4 Qcc4 Qc3 Bg6 Qa5 Bf3 Qg5 Qcb4 Bd4 h1Q Bf7 Rd7 Bb3 Qba3 Be3 Bb2 Bbd1 Qf1 Qg3 Bh1 Qg4 Bg1 Qg2 Qf3 Bf2 Qd4 Nd6 Qda4+ Kd5 Qac3 Rb4 Bh2 Bd4+ Be5 Bg1 Bd4 Bf2 Bb6 Bc5 Qac2 Kc6 Qa4+ Nb5 Rd8 Qf2 Rdd4 Qg2 Ba7+
3nQ2r/BPBR2rk/1R6/1B5n/1B1qbb1p/1q4Q1/1N2Nr1N/qnqr3K w - - 0 1 illegal: No possible last move
3qQb2/1P1rrnbk/Rq2NBRB/1QNrp3/2b3b1/7B/3Rqn2/1r3K1R w - - 0 1 illegal: No possible last move
r1nQq1NQ/1PnRqp2/N2bR2K/4NB2/q4Rn1/2k3r1/1N3rbB/3r1n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 g4 Ke5 b4 a5 e4 h5 c5 d5 c6 d3 b6 Kd4 b5 h3 b7 a4 b6 h2 c7 f3 e5 a3 g5 a2 g6 f2 g7 h4 e6 h3 e7 Na6 e8R Qe7 b8N Bb7 c8Q Nc7 Be2 f1N+ Ke1 d2+ Kf2 Rh5 Kf3 Rf5+ Kg4 Rf2 Na3 Kc3 Kh5 d4 Bg4 d3 Bf5 Bg2 Nc4 Ra3 Rb1 a1R b7 Ra8 Rd8 R1a3 Rd7 Qe8 Rb2 Bd6 Na6 Ne7 g8N Rb3 Qd8 Nc8 Kh6 Qe7 Qg4 d1R Re2 d2 Nf3 Ra3 Rg1 h1N Nfe5 h2 Qh3+ Rf3 Re1 Qe8 Bb1 Ra2 Ng6 Ne3 Qg3 Bf1 Qg2 Nf2 Kh7 h1Q+ Qh2 Nfg4 Bf5 Bg2 Rgf1 Rc2 Re2 Re1 Nb2 d1Q Kg7 Rd2 Qh8 Qh4 Rff2 Nf1 Re6 Qa4 Ne5 Rc2 Bf4 Qhe7 Bh2 Rg3 Rf4 Rd1 Kh7 Rf2 Kg7 Nge3+ Kh6 Ng4+
B4q2/Qpr3bb/1b1N1n1R/4n1bQ/1rR2P2/2q2BqR/1Brkr2R/4NK2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 a4 Kd7 d4 Kd6 g4 h5 g5 e5 a5 c5 a6 b3 g6 c4 f3 e3 g7 c3 a7 e2 Rh3 c2 Nd2 b2 Kf2 e1Q+ Kg2 b1R Ra6+ Nc6 Ra3 Rh7 Rh1 e4 Rc3 h3+ Kh2 h4 Rb3 e3 Bb5 e2 Bd3 Bf5 Be4 Rc8 a8B Nf6 g8Q Bh6 Qg5 Qf8 Qe3 Rg7 Ra3 Rb4 Bb2 c1B Rc3 Rcc7 Rc4 Rge7 Qa3 Bg7 Qa7 Bh7 f4 Qf2+ Bg2 e1B Ngf3 Qe3 Qe2 Qc3 Kg1 h2+ Kf1 h3 Qd1 Bf2 Qe2 Re3 Ne1 Bh4 Qf3 Bg5 Ne4+ Ke7 d6+ Ke6 d5+ Kf5 d7 Ne5 Qe2 Bd2 Qb8 Bc1 d6 Bd2 Qd1 Bc1 Qa7 Bd2 Rg1 h1Q d8R Qh2 d7 Bc1 Rh1 Bd2 Nc5 Re4 Qe2 Be3 Qd1 Bd4 Qf3 Re3 Ne4 Bb6 Qe2 Rd3 Qd1 Rd2 Qf3 Rc2 Qd1 Nd5 Qf3 Qg3 Qh5 Qh4 Re8 Qg4 Re6 h2 Rh6 Nf6 d8R Qgh3 Rg1 h1R Rd3 Rh2 Rh1 Qg4 Rh3 Qgg3 Bf3 Rhe2 Nd2 Ke6 Ne4 Kd5 Rc6 Kd4 Rc4+ Ke3 Nd6 Kd2 R1h2 Re7 Nd3 Rf7 Ne1 Rc7
2b2QN1/P5n1/1NKq4/BB3qB1/3b2R1/nq2r1B1/1np1r1kn/2Q1qRNb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 a4 b5 d4 f5+ Kd3 c5 e4 c4+ Kc2 f3 g4 h3 a5 f2 a6 c3 Kd3 f4 a7 f3 g5 h4 g6 h2 g7 b3 Ra2 b4 Kc4 c2 Kb5 h3 Bd3 f1N Qe2 f2 Qh5 b2 Qf3 b3 Qe3 Na6 Bd2 Nb4 Bc3 Nh6 g8N Bg7 Qe1 Nf5 Na3 b1N Qc1 b2 Be1 Qc7 Be2 Nd3 Ba5 Be5 Be1 Ng7 Nc4+ Kd7 d6 Ke6 d7 Qd6 d8B Na3+ Ka5 b1Q Bg5 Rh6 Nb6 Nb2 Bb5 Rf6 Ra1 Rf3 Ra2 Bf6 e5 Kf5 d5 Ke4 e6 Re3 e7 Bd4 Ra1 Qa2 Rb1 Qb3 e8Q+ Qe7 Qf8 Qd6 Bh4 Rb8 Bg3 Rb7 Bc3 Re7 Bd2 Re2 Bg5 Re3 Ne2 Re5 Rg1 h1B Rg2 Re6 Ng1 Nh2 Ra1 f1Q Rb1 Qc6 d6 Qf5 d7 Qd6 d8B Re5 Ne2 Kf3 Rg1 Qbd5 Rf1+ Kg2 Ng1 Qb3 Ra1 Nb1 Ra4 Na3 Bc7 Bc5 Rg4 Bd4 Bcd8 Re2 Bd2 R5e3 Bg5 Bd7 Ka6 Be6 Kb7 Bd7 Ba5 Bc8+ Ka8 Rc3 Rgf4 Ng4 Nf3 h2 Rd1 Rce3 Rg1+ Kh3 Rd1 Bg2 Re1 h1Q Re4 Be6 Kb7 Nh2 Rg4 Qg1 Rd1 Bh1 Re1 Qf2 Rf1 Kg2 Ng1 Bd7 Nh3 Qe1 Ng1 Qdb4 Kc7 Bc8 Kc6 Qd6+
1Q6/PQ1q2p1/b2n1q1b/Nr1Bn1n1/1rQK1R1r/q3B3/3N2R1/N1Nrk1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 Kd6 d4 f5 a4 b5 e4 c5 a5 b3 h5 b4 h6 b2 a6 g3+ Ke2 f3+ Kd3 b3 a7 c4+ Kc3 f4 h7 g2 Rh3 f2 Qd2 f3 Qh6+ Nf6 Rh2 Nc6 Nd2 b1R Qh4 b2 Ne2 g1N Bg2 f1Q Ra4 f2 Rb4 Nf3 e5+ Ke7 d6+ Ke6 d5+ Kf5 e6 Be7 d7 Ba6 d6 Ne8 Qd4 Ng5 Bd5 Rb8 Rg2 Qg1 Nb3 f1R Be3 Rb5 Na1 Rfd1 Nc1 Ne5 Qh4 Qc8 d8N Qd7 Nb7 Bf6 e7 Qf1 Kc2 c3 Qc4 Qf2+ Kb3 c2 Kc3 Qf1 Na5 Qg1 Nd3 c1Q+ Kd4 Qf2 N5b3 Qf1 Nd2 Qg1 Rh2 Kg4 Rf2 Kg3 Ra4 Qc6 d7 Nd6 d8N Qd7 e8Q Qf1 Qh5 Be7 Rh2 Qf6 Nc6 Bd8 Qf7 Ba5 Nf3 Bd2 Na5 Rb4 Kc5 Qc3 Nc1 Qa3 Kd4 Rb5 Re2 Rb4 Bf2+ Kg2 Be3+ Kf1 Qe7 Qh3 Qb7 Qd7 Ng1 Rb5 Rg2+ Ke1 Rb4 Ra8 h8Q Rb8 Qh2 Rh8 Nge2 Rh3 Ncb3 Rh4+ Qf4 Rbc1 Ra4 b1Q Rb4 Rc2 Nec1 Rc3 Nc5 Rb3 Ne4 Qg6 Qf8 Qf6 Qfb8 Rb2 Bg1 Bf4+ Nd2 Qbg6 Ra4 R2b4 Be3 Qgf5 Rh2 Qg4 Rf2 Qg1 Rg2 Rb3 Rb4 Rb1 Ra4 R1b4 Qd8 Ne8 Qdb8 Nh3 Ke4 Rb1 Qcc8 R1b3 Rd4 R3b4 Qc4 Nf3 Qc3 Bh6+ Kd3 Nhg5 Rf4 Nd6 Qb3 Qa2 Qc4 Ne5+ Kd4 Qa3
nnn1qRR1/b2rQRBB/4K1Q1/rRn3P1/2Nr3p/5rr1/5rN1/1b1B1k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 a4 b5 f3 c3 f2 b7 f4 b6 a3 Bd2 f3 Be1 d4 Ne2 d2 Qa4+ Kd3 c4 d1R c5 a2 c6 h3 c7 h2 Bc3 h4 Qa5 Bf5 c8B Rh7 Qa7 Rd7 Ba5 Ne7 Bd2 Qe8 Bc3 Bh7 Bh3 f1R Bg4 Rf2 Rf1 h1R Nd2 Rh3 Rb1 a1N Rb5 Rg3 Nc4 Nb3 Ke6 Bg7 Qa3 Ra5 e5 Be4 Bf5 Bf8 Bh7 Nc5+ Kf6 Rd2 e6 Bg6 Ne5+ Ke3 Nf4 d3 Ng2+ Ke2 Nc4 Rd1 Bd4 d2 Bc3 Bb1 Ke5 Nd5 e7 Nc7 Ba1 Rd4 Bg4 Na8 Bc3 Ne4 Bh5 Nd6 Ke6 Nc8 Qc5 Bg7 Qf5 Rd7 Qg6 Bd4 Bb2 Re1 Bc3 d1N Ba1 Be3 Bg7 Nc3 Bg4 Ne4 Bh5 Qh8 e8Q Red1 Qe7 R1d4 Bg4 Nc6 b8R Qe8 Rb7 Nb8 Rc7 Rd3 b7 Ba7 Rcc5 Rd1 Rf5 R1d4 Rf8 Nd2 Rd1 Nb3 Rd3 Kf1 Rc3 Rfa2 Rf7 f2 Bd1 Rc2 Rcf3 Rc3 R3f4 Rcf3 R4f5 Kg1 Rf8 f1R R5f7 R1f2 Rg8 Nc6 b8R Kf1 R8b7 Nb8 Rbf5 Rdd2 Rbb5 R2d3 Rff8 R3d4 R5f7 Nc5+
3N1n1n/nR1n2n1/B3bpk1/3P2b1/1rnBqQ2/1rRQb3/Q2QKR2/6bN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 c5 d4 h5 e4 a5 g4 f6 g5 Kf7 d5 a4 e5 a3 b6 a2 b7 c3 b5 h3 e6+ Kg6 e7 h4 e8R c4 b6 h2 Qa4 f3 Re2 c2 Re3 h3 Kd2 c3+ Kd3 f2 Qh4 Bc5 Ke2 Be6 Rf3 Qe7 Rg3 Ra3 Nf3 Nc6 b8Q Nh6 b7 Nf7 Nd4 Na7 Qc7 Rb8 Qhf4 Rb3 Nb5 Nh8 Rhg1 h1N Nd2 h2 Bb2 c1B Rb1 a1N Ne4 c2 Nbd6 B1e3 Bd4 c1B R1g2 Nc2 Qa5 Bb6 Rf3 Qe8 Qd2 Ng3+ Kd1 h1N Nf7 Bc5 Nd8 Nh5 Ba6 f1N Rgf2 Ng7 Ke2 Rb4 Qd3 Nd2 Qh2 Nc4 Ng3+ Bf5 Qd2 Qe4 Rb2 Be6 Qd3 Rc8 b8Q Bcd2 Qf4 Rcb8 Rf1 Nf2 Nh1 Ng4 R1f2 Nge5 Rh3 Ra4 Rb7 Nd7 Rg3 Rb4 Qg2 Kh5 g6 Rb3 Rc7 R8b4 Rb7 Nce5 Rgf3 Nf8 Rg3 Ned7 Rgf3 Nf5 g7 Na3 g8Q Nc4 Q8g3 Bc1 Qd2 Ng7 Qf1 Bb2 Qa1 Bc1 Qh3+ Kg6 Qaa2 Qc2 Rf1 Bg1 R1f2 Bb6 Rc3 Qe4+ Kf1 Bc5 Qhd3 Bb6 Qd2c2 Be3 Qcd2 Bc7 Ke2 Bb8 Qh2 Bbf4 Qh4 Bh6 Qf4 Bg5
k2nb1r1/rR3Q2/2N1PRQ1/1R1rb1n1/1bNQr1b1/2p1r1K1/8/q3BBRr w - - 0 1 illegal: No possible last move
r1k5/2NNq1nb/bp2r1b1/2Q1n3/Q1n5/R1K3n1/1PnQb1nB/BB3Q1R w - - 0 1 illegal: Other
4K1Q1/r1p2b2/1PQ2b1r/b2bB3/BbqN4/1Q3N2/1Nn1n3/QR1nnRbk w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 h4 Ke6 d4 Kd5 b4 Ke4 b6 a5 b5 g5 d5 f5 h5 f3 Kg3 f4+ Kf2 a4 e3 a3 d6 c3 d7 a2 b7 c2 h6 g3+ Ke1 f2+ Ke2 f3+ Kd2 g2 Kc3 g4 Kc4 g3 h7 Qh4 d8Q Ra7 b6 Nf6 Kb5 Nh5 Ba3 c1B Q8d2 Bb4 Qb3 Nc6 b8N Be6 Qe1 Bcd2 Be2 f1N Bb2 f2 Nf3 g1N Be5 g2 Na3 Nf4 Rb1 a1B Bd1 Nd3 Nc4 Ne2 Nb2 g1B Bc2 Ba5 Qc1 Nb4 Nc6 Be1 Ncd4 Bc3 Bd1 Nc2 Kc6 Bd5+ Kd7 Bcb4 Bg3 Nde1 Be5 Rf8 h8Q Rf6 Qg8 Rh6 Nc4 Qf4 Qca3 Bac3 Qa1 Qf7+ Kd8 Qe6 Nb2 Qc6 Bh8 Qc4 Ke8 Be6 Nb5 Bf6 Nbd4 Nh2 Bg7 f1B Bh8 Bg2 Bg7 Bf2 Rf1 Ng4 Bh8 Bg1 Bg7 Nf2 Bh8 Kd5 e4+ Kd6 e5+ Kd5 Bg7 Ke4 Bh8 Kf4 Bg7 Kg3 Bh8+ Bg4 e6 Kh3 e7 Be6 Nd2+ Kh2 N2f3+ Kh1 Bg7 Bg5 Be5 Bf6 Qba2 Ne3 Ba4 Nfd1 Qb3 N3c2 Kd8 Bh8 e8Q Bg7 Qc6 Bh8 Nh4 Bgd5 Nhf3 Bf6+ Ke8 Bf7+
QB3n2/PbBrr1Nb/5BRb/1kb2QKb/1p3r2/5bnB/2N2r1q/3Q1R2 w - - 0 1 illegal: No possible last move
1r3b2/5bnk/qpbRb3/1PR4r/KBQ1b1Nb/NQR1R3/3Bn3/Nb1b4 w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 g5 h4 gxh4 e3 d5 cxd5 a5 Bc4 a4 Bb3 axb3 g4 f5 a4 Kf7 d4 Kg7 Kd2 c5 Kc3 h5 e4 b6 b5 f3 g5 f2 d6 f1B g6 b2 Kb3 h3 e5 f4 e6 f3 e7 h4 e8R h2 d5 f2 a5 h3 d7 c4+ Ka4 c3 a6 c2 a7 Bg2 d6 f1B Re3 Nf6 Bd2 c1B Raa3 Bf3 Rac3 Ne8 Ne2 Nc6 Na3 b1B Nd4 Rh5 Ndc2 Bc4 Na1 Rb8 a8Q Nd4 Qe4 Bf7 Qb3 Ne2 Qec4 Bb2 Rg1 h1B Rg5 h2 Rc5 Qe7 d8R Qb7 d7 Qa6+ Kb4 Kg8 g7 Kh7 g8N Ng7 Nh6 Bfe4 Ng4 Bhf3 Red3 h1B Re3 Qb7 Ka4 Bhg2 Rcd3 Bf6 Rd6 Bc6 Rde8 Bg5 d8B Bh4 Be7 Bce6 Rc8 Bfe4 Bf6 Bec2 Bfc3 Bd1 Bb4 Bge4 Qd5 Bed3 Rc3 Be4 Qc4 Bce8 Rc5 B8c6 Rd4 Qc8 Rd6 Qa6+
b1R2rNK/r2Q1QnQ/2n5/N2p2RP/1Q2n3/1bBB1nr1/3b4/r1R1bqk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 b4 d5 e4 g5 c4 a5 b6 f5 c5 d3 h3 Kg3 b5 Kf2 h4 f3 h5 d2 c6 g3 c7 f4 b7 a4 b6 a3 Bc4 g2 Rh3 a2 Bb5 g4 Rh2 g3 Ne2 Ra7 Nd4 Nh6 Nc6 Rg8 Bd3 Nf5 Ne7 Bh6 Kf6 Ng7 e5 Nc6 b8Q Bb7 c8Q Ba8 Qc2 Kg1 b7 d1B e6 f2 Qd7 f1N Nd2 f3 Nb3 f2 Na5 Bd2 Bb2 Qf8+ Kg6 Be1 Kh7 Nd2 Bc3 f1R Rc1 a1R Qbd6 Rf4 b8R Ne4 Qb4 Qf6 Qcb1 Bb3 Rc8 Rf3 Qc2 Rf8 Ng8 Re3 e7 Qf1 e8Q Nd2 Qh4 Kf2 Rh1 g1B Qb4 g2 Bg6 Bh2 Qee6 g1N Qef7+ Bf4 Kh8 Rf3 Rh4 Rg3 Rg4 Nf3 Rg5 Kg1 Bh7 Be3 Qcg6 Bf4 Qh6 Be3 Bd3 Ne4 Qh7 B3d2
b2Br1QR/1Q1n4/4P3/1rbBn2p/1R1Q2n1/NK2Q1NN/3rb1n1/2brk2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 g5 a5 g6 f3 b6 a4 b7 h3 g7 f2 b5 a3 c5 h2 c6 f4 b6 d3+ Kb3 Kd4 e5 f3 e6 d2 c7 Ke3 Bd3 f1N Ka2 Kf2 Bh7 d4 Be4 d3 Qa4 d1R Qc4 d2 Kb3 a2 Bh7 Ke1 Qa6 f2 Qc4 Ne7 g8N Ne3 Nh3+ f1N Qd4 Ng4 Be4 Ng6 Nf6 Nd7 b8Q N6e5 b7 Ra5 Na3 Bc5 Bd5 Re8 Ne4 Qh4 Rb1 a1B Qa7 Bb2 b8Q Bb7 c8Q Ba6 Qcb7 Be2 Rg1 h1B Ng3 Be4 Rg2 Nfe3 Rf2 Ng2 Rf8 B4f3 Rh8 Be4 Qd8 B4f3 Qg5 Be4 Qg8 B4f3 Nf4 Qh1 Nh3 Rb5+ Ka2 Ba1 Rb4 Bc3 Bb2 Be4 Ba1 Bb2 Kb3 Bc1 Qe3 Nc6 Bf6 Nce5 Bd8 Bf3 Bc4 Bc6 Qab6 Bd5 Qd6 Bf3 Qdd4 Bd5 Qc7 Ba8 Bd5 Bb2 Kc2 Rc1+ Kb3 d1R Qb8 Rc2 Qc7 Rcd2 Qb7 Bc1
n3rR2/br1R1P2/1kbB4/nBnb1NB1/3rr1qB/b3p1Q1/1N3K2/1n1N1Q2 w - - 0 1 illegal: No possible last move, all moves rejected
nn3Q2/2B1q1pN/1q1Rn1r1/2r1kBr1/3n1n2/qQR1K1P1/2bQ4/BNB2n2 w - - 0 1 illegal: No proof kernel
1n1QB2b/4B1p1/n2n4/q2bR2B/2k1N1Pr/b1n1q3/RR2NQbK/bn4B1 w - - 0 1 illegal: Other
1QR2N2/BB2p1q1/b1b4R/2n1B2b/NR1BPQKn/n2k2bn/7b/3rn1q1 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 h4 g5 Rh2 b5 Rh3 Ra6 Rh1 Rg6 Bb2 fxg4 Bc1 g3 Bh3 g4 Bf1 Rg5 hxg5 Bg7 Rh3 Bh6 Rh1 Bf8 a4 Kf7 f4 Ke6 d4 Kf5 g6 Ke4 g7 h5 d5 c5 f5 c3 f6 c2 e3 g2 Ke2 g3 d6 b3 d7 c4 f7 b4 a5 b2 a6 b3 a7 h4 a8R h3 R8a3 c3 Ra6 h2 Qd2 Nh6 g8Q Nf5 R6a3 Ba6+ Ke1 Bg7 f8B Be5 Bb5 Nh4 Bg7 Qf8 d8B Nd7 Ke2 Nc5 Bf6 Qg7 Nh3 g1Q Nf4 g2 Ne6 Bg3 Bc7 Rh5 R3a2 Rd5 Bce5 Rd4 Qb8 Rd5 Na3 b1N Nc4 b2 Nf8 Na3 Nb6 b1B Na4 Rd8 Bb2 c1B Bd4 c2 Bfe5 Rd7 Bbc3 Rd6 Rb2 Rd5 Rb4 Rd8 Qd1 Bd2 Qf1 c1N+ Kd1 Rd5 Bc6 N1d3 Bb7 Ne1 Qf4+ Kd3 Ra2 Rd6 Rc2 Rd8 Bb2 Bc3 Rb6 Ba5 Rb4 Bc7 Rcc4 Qf2 Rc1 g1N Rcc4 Nh3 Ba1 Ne4 Ba7 Qg1 B1d4 Bd6 Rc6 Nc5 Rc8 Qf1 Rg1 h1B Rg2 Qg1 Rh2 Bc6 e4 Ba2 Rg2 Bh2 Rg6 Bf7 Rh6 Bg6 Bf6 Bge8 Qe5 Bg6 Bf2 Qg3 Qf5 Bf4 Be5 Qg1 Qg4 Bfg3 Qf4 Rd4 Be3 Rc4 B3d4 Rc3 Rb1 Kc4 Ke2 Rc1 Rb2 Rd1 Rb1 Nf5 Rb3 Nec2 Kf3 Ne1+ Kg4 Nh4 Rb1 Kd3 Rb4 Bh5+
8/2NR1pk1/n1n1qrb1/Q2b1PB1/b4q2/K1B5/BbNBq3/1Rqn1QbN w - - 0 1 illegal: No possible last move, all moves rejected
7b/1BN2kNp/Qrb2r2/q4q1q/2b4q/K2RB1rP/Q1N2qQn/1rR3Q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 Qd3 Nc6 Qd2 Nce7 Qd3 exf4 Qd1 f3 Nc3 f4 Nb1 Nf5 gxf5 Ra6 Kd2 Ra3 Ke1 Ra8 Kd2 g5 a4 b5 e4 d5 c4 g4 Kc2 g3 Kb3 f2 e5 f3 a5 g2 a6 d3 h3 d2 e6 d4 c5 d3 f6 Rb8 c6 Qa5 a7 Rb6 a8Q Bg7 c7 Nh6 e7 Ng4 Qe4 Nh2 Ba3 Bb7 c8Q+ Kf7 e8N Rf8 Nc7 Bc6 Nc3 Bh8 Nge2 g1R Nf4 Rg3 Bg2 f1Q Na2 Qf2 Qg1 d1R Qe2 d2 Nfe6 Rb1+ Bb2 d1Q+ Qc2 Rfg8 Qa6 R8g6 Ng7 Qdd4 Qd2 Qh4 Qg5 Qfd4 Qd2 f2+ Bf3 f1B Qdg2 Bd3 Be4 Qf2 Bd5+ Kf8 f7 Rf6 Bf3 Be8 Bb7 Bc6 Nc3 Qh5 Ne2 Qh4 Ra3 Bc4+ Kc2 Ke7 Rd3 Qh5 Bc1 b3+ Kd1 b2 Kc2 b4 Be3 Qaf5 Qa2 b3+ Kc3 Qfg4 Nd4 Qgh4 Nc2 Ra1 Nd4 b1Q Nc2 Qbe1+ Kb2 Rb1+ Ka3 b2 Nb5 Rh6 Nc7 Kf6 f8Q+ Kg6 Qb8 Kf7 Qa7 Rf6 Qa4 Qea5 Qe1 Ra1 Qd1 b1Q Qdg1 Qaf5 Qa6 Qbb5 Qd1 Qbe5 Qg4 Rab1 Rc1 Qa1 Qd1 Qae5 Qdg1 Qa5+
b1q2K2/r5r1/1p1rQB2/Nn1B1r2/1b2Q1r1/1Bb1Q3/1Pr1RB1R/kr3b1N w - - 0 1 legal: proof: f4 c5 g4 h5 d4 hxg4 a3 cxd4 f5 Nc6 f6 b6 a4 exf6 a5 f5 a6 f4 Qd3 Na5 Qd1 Nb7 axb7 Bc5 Bd2 Be7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b8B a5 e4+ d3 h4 d5+ Ke5 f5 h5 g5 h6 g3 h7 g2 c3 g4 Rh2 g3 Ra3 a4 Nf3 g1B Ba7 d4 Ra2 a3 Qc2 g2 Bb8 Ra4 Bd2 Nh6 Be1 Bb7 Ke6 Nf7 e5 Nd6 Ng5 f3 Ra1 f4 Nh3 a2 Nf2 Nb5 Kf7 Ba8 Nh1 f2 e6 f3 e7 Rb4 Qe2 Kb3 e8Q d2 c4 d1R c5 d3 Na3 d2 Nc4 Ra4 Rb1 a1R Q8e6 Ka2 Be5 Rg8 h8Q Rc1 Qhh3 d1R Qh4 Qc8 Bf6 Rc2 Qhh3 Ra6 Na5+ Rd5 Rd1 Rb1 Rd2 Ka1 Q2e5 Rg6 Bc4 f1R Bb3 Bd4 Re2 g1R Qe4 f2 Qhe3 Rd8 Bd5 Bc3 Bb3 R1g4 c6 Bfb4 c7 Rd6 Bd5 Qd7+ Kf8 Rg7 Bb3 Qc6 c8B Raa7 Bb7 Qc8+ Bd8 Rfg1 Bc6 R1g3 Bcd5 f1B Bf2 R4g5 Q6f5 R3g4 Qfe6 Qa6 Be7 Rf5+ Bf6 Qc8+
KNQ1r1RQ/1n3b2/1r1q3r/nRrp3n/3P3Q/4BQn1/2Bnn1Rq/N1k5 w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Nf3 b5 Bb2 b3 Ng1 b4 Bc1 b2 Na3 b3 Nb1 Bb4 cxb4 Qf6 Nc3 Qg5 Nb1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 c5 d4 h5 a4 f5 e4 h3 g4 c4 b5 c3 b6 h4 e5 c2 a5 h2 b7 h3 a6 Nh6 a7 Nc6 b8R Nf7 e6 Nd6 e7 Rh5 e8Q Nb7 Qd2 Nca5 Na3 b1R Qde1 b2 Bd2 c1N Q8e4 Ne2 Bc3 f3 Ra2 f2 Nc2 f4 Na1 f3 Qd3 Kf4+ g5 Rh6 g6 Rc1 g7 b1R g8Q Rbb6 Qh8 d6 Qdd1 Ke3 Bd2+ Kd3 Bg2 f1N Be3+ Nd2 Qh4 f2 Nf3 f1N Rg1 h1Q Ne5+ Kc3 Nd7 h2 Be4 Nfg3 Rg2 Nh5 Bc2 Qf8 Ra4 Kb2 Qf1 Qg1 Qf3 h1N Rc4 N1g3 Rc5 Qh2 Rb5+ Nab3 Ne5 Bf5 Nc6 Bg6 Rd8 Qf4 Rg8 Re8 a8Q Qf8 Qc8 Qf4 Rc5 N3a5 Nb8 Qf8 Bb3 Rc4 Rb5 Kc1 Bd1 Rd8 Bc2 Rc5+ Ke6 Re8+ Kd7 Nc6 Kc7 d5 Nd7 Nca5+ Kb8 Qd6+ Ka8 Bf7 Nb8 Qf8 Qhe4 Qe7 Qh4 Qd6
1r1B1R1Q/Q3R3/4Brb1/2K1N2p/q1N1B2p/1N1nq2b/n2P2q1/bNr2n1k w - - 0 1 illegal: No possible last move
3qkr2/Bn1rb3/2Q2Qn1/R5P1/B2rp1pR/NKQ2b1q/1R6/RNnq2b1 w - - 0 1 illegal: No possible last move, all moves rejected
2BKn2N/Q2r2Nb/Qq3rQ1/b1pP2BB/nR6/R2pr3/7k/qb3nqB w - - 0 1 illegal: No proof kernel
BbnnN1BN/2r1q3/3pqNN1/q2pb1k1/3Q4/5Rrb/3K2QP/B1rn1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 d5 c6 Qd2 cxd5 Qd4 Bc5 Qd1 Bf8 c4 Ke7 e4 Kf6 b4 g5 c5 a5 c6 a4 c7 g3 b6 g4 b5 a3 e5+ Kg5 b7 f5 b6 g2 e6 a2 e7 g3 e8N d6 Nf6 Ra3 Qd4 Nc6 b8Q Rh7 b7 Bg7 Kd2 f3 Bb5 f4 Bb2 f2 Bc3 f1Q Ne2 g1B Ne8 f3 Nf4 f2 Ng6 g2 Nh8 Bh3 c8B Be5 Be6 Nge7 Bg8 Nc8 Qc7 Rf7 b8N Qe7 Nd7 Nd8 Bc6 Rh7 Bb2 Rg3 Nc3 Qc4 Rd1 a1Q Rf1 Qa5 Ba8 Qcb5 Ndf6 Qbd7 Qb8 Qde6 Ba1 Rg7 Qb2 Rf7 Re1 f1R Re4 Rc1 Re3 Bf2 Qc2 g1N Rf3 Ne2 Rf1 Bg1 Nd7 Bf2 Nf8 Rh7 Nfg6 Bg1 Qb4 Ba7 Qd4 Bb8 Qce4 Nf4 Qe2 Nd3 Qg2 Nb2 R3f2 Qa3 Rf3 Nd1 Ne4+ Kh6 Ke2 Qa5 N4f6 Kg5 Kd3 Qf8 Ke2 Rhc7 Kd3 Qfe7 Ke2 R1c3 Kd2 Rc1+
b2Q1Nbr/qrq1np2/6Q1/1R1r4/n2B2N1/q3n1RQ/bpB2PK1/B1k1B3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 e3 d5 Qf3 e6 Nh3 d3 Qd1 d4 Ng1 Be7 Bh3 d2+ Kf1 d3 Kg2 Qd6 Ne2 Bf6 Ng1 Bd4 exd4 Qc6+ Kg3 Qa6 Bf1 Qd6+ Kg2 Qd8 a4 Ke7 c4 Kf6 h4 Kf5 h5 Ke4 c5 g5 a5 b5 a6 g3 c6 g4 d5 e5 d6 b3 a7 b4 c7 b2 d7 b3 h6 Bb7 c8Q Qc7 d8B Na6 h7 Ne7 Rh3 Rb8 a8Q Nc5 Ne2 Na4 Qa5 Ba8 Rh2 Rb7 Na3 b1B Qc5 Ba2 Kg1 g2 Qdc2 d1R Q2c3 d2 Q3d4+ Kf3 Rb1 e4 Nc2 e3 Nf4 e2 Qg5 e1N Ne3 Nc2 Qc3 Ke4 Ng6 Kf3 Nf8 Ke4 Nd5 Ne3 Bb2 Kf3 Ba1 b2 Nf6 Qc5 Ne8 Qa7 Rh5 Ke4 Kh2 g3+ Kh3 g1Q Bd3+ Kf3 Qg6 g2 Bc2 Ke2 Ba5 Qe1 Rc1 g1Q Qd8 Qg5 Bb4 Qe5 Nf6 Qc7 Rb5 Qg1 Ba5 Qg5 Ng4 Qgc5 Qb3 Qa3 Qbe6 Re1 Qef5 d1B Qfh5 Rg1 Be1 Rg3+ Kh2 Rf3+ Kh1 Rf5 Qh3 Rc5 Bf5 Bdb3 Rc3 Rd5 Bc2 Bb1 Kg1 B3a2 Kh1 N3f5 Rg3 Ne3 Bf5 Kd1 Bc2+ Kc1 Kg1 Bc4 Kh2 Bd3 Kg1 Ba2 Kh2 Rg8 h8B Bf5 Bd4 Rh8 Qb6 Bh7 Qg6 Bg8 Kg1 Nc4 Kg2 Ne3+
3QKNN1/1P3nk1/1B1n2BR/Bb1qb3/pR1r2qN/1b4nB/1p1r4/Q2rq3 w - - 0 1 illegal: No possible last move
2b2BRq/pn1N1r2/qBQ1r1Rb/3q1pNP/1B3k2/KQ1b2Nr/5n2/2n2B2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 h4 Ke5 b4 g5 c4 d5 Kc2 f5 Kb2 f3 b6 f2 b7 d3 c5 g3 b5 d2 c6 g2 b6 d4 c7 d3 Ne2 g1Q Qb3 d1Q Ra6 d2 Ng3 g4 Nc3 Nd7 b8B Nc5 b7 Nf6 Ka3 Kf4 e5 Nfe4 e6 Bh6 e7 Qd3 e8Q Qh2 Rg6 Qa6+ Qea4 Qf3 Bb2 d1R Rg1 Re1 Bc1+ Re3 Bd2 Rh7 Be1 Rf7 Rg2 Qd1 h5 Qd5 Rg1 Qh4 Rg2 Qhf6 Rg8 Qh8 Bd2 Qad6 Qc6 Qdf6 Na4 Qfd6 Bb4 Rd3 Nc3 Rf3 Bc4 f1B Rg1 Nf2 Nce4 Bd3 Ng5 Bb1 Bf1 Bd3 Nh1 Rh3 Ng3 Be6 c8N Bd7 Nb6 Bc8 N3e4 g3 Bc7 g2 b8B Nb7 Bd8 Nc5 Ng3 Nb7 Bbc7 Rb8 Be7 Ra8 Rh1 g1N Nd7 Ne2 Rg1 Nc1 Bf8 Rb8 Bd8 Qg6 Qca4 Qa6 Bb6 Na5 Qc6 Rb7 Nb8 Rbe7 Nd7 Nb7+ B6a5 Qac4 Nf3 Re8 Bb6 Bg7 Nh1 Qcb5 Rg6 Re6 Ng3 Bh6 Ng5 Qa6+
5Qnr/pN1nKB2/5nr1/1NP5/3b1QNB/1prq2bb/1RQN4/kq3qR1 w - - 0 1 illegal: No proof kernel
7r/pN1P1B2/2r1Q2R/1QR1bnnQ/NN3q2/r3n1q1/N1pq2k1/B1K2b1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Kd6 Kd2 Kd5 g4 Ke4 b6 c5 b5 f5 d5 h5 g5 c3+ Kc2 c4 e3 h3 d6 h2 b7 h4 g6 h3 g7 f3 d7 f4 b6 f2 Bb2 f3 Ra4 Nf6 g8Q Nh7 Qg3 Nc6 b8N Bg7 b7 Qc7 Na6 Be5 b8Q Ne7 Qg6+ Nf5 Ne2 Ng5 Kc1 c2 Nb4 Ba6 Qb5 Rac8 Ba1 Qd6 Qf6 Rc6 Ra5 Qb8 Bg2 f1Q Qe6 Qg1 Bf1 f2 Nbc3+ Kf3 e4 Qg3 Na4 Qf8 Qdd5 Qh6 Qdc5 Qhh4 Nec3 Qhf4+ Kb2 c1R Be2+ Kg2 Bh5 f1N Bf7 Rb1+ Kc2 Rb3 Nca2 Re3 Kc1 c3 Qcd5 c2 Qd1 Bf6 e5 Bg7 Qh5 Ra3+ Kb2 N1e3 Kc1 Nf3 Qb7 Bd3 Rc5 Bf1 Qb5 Bf6 Qec4 Ng5 e6 Bc3 e7 Be5 e8N Kf2 Rg1 h1Q Qe6 h2 Nd6 Qd5 Nb7 h1B Rg2+ Ke1 Rh2 Qd3 Rh4 Kf2 Qf3+ Kg1 Rh6 Qe2 Qg4 Kg2 Qh5 Qd2+
n1N1B2R/q1n3Bb/2r3rN/b4R1N/2Q5/k1bPRr1n/3ppb1K/b2QN3 w - - 0 1 illegal: No proof kernel
1K2b1B1/R2bQ1bb/N2n1BNk/5Rrr/4pq2/3nPQ2/1p1r4/3nRbNN w - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 c4 f6 g5 fxg5 cxd5 gxh4 Qb3 h3 Qc2 Bd7 Qd1 Bc8 f4 Kf7 Kf2 Kg6 Kg3 h5 d4 b5 a4 e5 d6 c5 a5 c4 a6 h2 a7 b3 e3 b4 d7 b2 f5+ Kh6 d5 g5 f6 b3 f7 c3 d6 h4+ Kg4 c2 Kf5 g4 Ke6 h3 Qd5 g3 Qd1 g2 Ra6 Nc6 Qd4 Qh4 Bd3 Nf6 Nd2 b1B Bb2 c1N Ra2 Ng4 Qd5 Ne7 Ne4 Nf5 Nf2 Bg7 Bc4 Nd3 f8N Rb8 Bd4 b2 a8N Ba6 Qf3 Rd8 Nc7 Bc2 Ne2 g1R Ng6 Qg3 Kd5 Qf4 Kc6 Rg2 Rb1 h1B Bg8 h2 Ng1 Bc4 Kb7 Rg3 Ne4 Ngf2 Na6 Rg5 Re1 Nd1 Nf2 Bf7 Ka7 Bg2 Nh1 Be8 Ra4 Bf1 Ra3 Rb8 d8Q Rc8 d7 Nd6 Qe7 Rd8 Ng3 h1B Ra1 Bhg2 Nh1 Bh3 Bc3 e4 Bf6 Bf5 Ra5 Ba4 Rb5 Rc8 d8R Rc2 Rd7 Rd2 Kb8 Rh7 Rd5 Bc6 Ra7 Bcd7 Rc5 Rh8 Nf8 Bfg6 Rf5 Bh7 Ng6 Rdg2 Nc7 Rd2 Bd5 Bg8 Qg2 Kh5 Na6 Rh6 Qf2 Bh7 Bg8 Kg4 Bd4 Rh2 Qg2+ Kh5 Bf6 Kh6 Qf3 Rhh5
5RbK/br2Nb2/qBB1N3/P3b1nQ/bB5r/2np1nrN/2QN1p1k/R7 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 a4 g5 c4 b5 e4 d5+ Kf3 f5 h4 d3 c5 d2 h6 b3 c6 b4 h7 g4+ Kg2 f3+ Kg3 f4+ Kf2 d4 h5 b2 a5 b3 h6 Nd7 c7 Bg7 Ra3 Ngf6 Qe2 d1B Nc3 b1R Nh3 b2 Ra1 Ba4 Qc2 d3 Bd2 g3+ Kg1 g2 Kh2 Rg8 h8Q f2 h7 f3 Kg3 g1B Bg2 f1B Kh4 Be2 Kg5 Ba7 Kg6 f2 Be3 Bg4 Bb6 Be6 Rh2 Bb7 c8N Bbd5 Ne7 Qc8 Bf3 Rh1 Nb1 Rb8 Nd2 b1N Rg2 Qa6 Rg4 Re1 Rf4 Rb7 Bh1 Nc3 Rf3 Ng4 Rf8 Nh2 Bf3 Nc5 Bg2 Kd4 e5 Ke3 Bh1 Bc4 Bc6 Bf6+ Kh6 Bf7 e6 Bd4 Qe5+ N5e4 h8B Rh1 Kh7 Nf3 Qh5 Rg3 Bf6 Neg5+ Kh8 Ke2 Bg7 Be5 Bf6 Beb8 Bfd4 Bf4 Bdc5 Bcb3 Bb4 Bfb8 Nb1+ Kf1 Nd2+ Kg2 Nc8 Rd7 e7 Kh2 e8N Be5+ Ng7 Rb7 Ne7 Bg8 Be8 Bbf7 Bc6 Re1 Bd4 Re4 Bb6 Bd6 Ne6 Rh4 Rg1 Bc7 Ra1 Be5+
4bBkr/2n2Rn1/1nRbR1pr/bq4p1/3N1PQ1/4r3/b1bR2NK/N4Q1B w - - 0 1 legal: proof: e4 b5 g4 c5 a4 f5 axb5 fxe4 d4 cxd4 g5 h6 Bg2 hxg5 Bh3 Qb6 Bf1 Qd8 h4 Kf7 b4 d5 c4 e5 f4 a5 Kf2 g6 Kg2 d3 b6 d4 b5 e3 h5 d2 b7 a4 h6 e2 h7 e1B c5 a3 b6 a2 c6 e4 c7 e3 Be2 d3 Kh2 Na6 b8N Nf6 b7 Bd7 c8R Nh5 Na3 Qb6 Nf3 Qb5 Rc6 Nc7 Nc2 Bd6 Nh4 Be8 Bf3 e2 Ng2 Ra3 Rb1 a1N Rb2 Nb3 Na1 Nc5 Rc2 Ra7 Ba3 Na4 Qb1 d1B Rd2 Bb3 Be4 Rg8 h8R Nb6 Rh7+ Kf8 Qd1 Rh8 Rf7+ Kg8 Rf1 Bd5 Rf3 Bb3 Re3 Ba2 Bd5 Rh6 Re6 Ra8 Qc1 Be5 Bf8 Bd6 Na6 Rc8 b8Q Rd8 Nc5 Rc8 Rb2 d2 Ncb3 d1B Nd4 Ba5 Rd2 Bc2 Qf1 e1R Qa8 Re3 Qa6 Qb3 Qae2 Qb5 Qg4 Rd8 Rf5 Rd7 Rff6 Rdh7 Rf7 Rh8 Nh4 Qb1 Bh1 Qb5 Ng2 Ng7+
1K1Qr3/1bBb1BNq/nr1B1P2/2N4n/p2n3r/2b2Rp1/1k1n1QQR/4n2B w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Ke6 c4 Ke5 b4 d5 b6 g5 b7 a5 h5 g3 c5 d3 Kc3 g2 c6 d2 h6 d4+ Kc4 a4 Kb5 e3 h7 d3 f4+ Kd4 c7 e5 Kb6 e4 f5 e2 b5 e1N Qe2 d1B Nd2 Kc3 Rh2 e3 Nh3 g1N Qg2 e2 Ba3 g4 Bd6 g3 Nb3 d2 Nc5 Qd7 Ng5 Bg7 Nge6 Nef3 Ra3+ Kb2 Qf2 e1N Bg2 Bd4 Ng7 Nc6 b8Q Ne2 Bh1 Nf6 Qb7 Nh5 f6 Nb4 Rc3 Rb8 Ka7 Re8 h8Q Be5 b6 Ned4 Qd5 Bb7 c8B Bb3 Qe4 Be6 Qf8 Bg4 Re3 Qf5 Be6 Qh7 Bf7 Bd7 Ra3 Nb3 Qe7 Bc3 Qd8 Nfd4 Qee2 Ndc2 Qg2 d1R Qef2 Rd4 Bc7 Nd2 Bd6 Bbc6 b7 Rh4 Bc7 Nd4 Bd6 Rc8 b8B Bb7 Bbc7 Re6 Ba5 Rc6 Bac7 Rb6 Kb8 Re8 Ra1 Nef3 Rf1 Ne1 Qf4 Qc2 Rf3 Qd3 Qe3 Qh7 Qef2 Na6+
3b1B1r/K4Q1N/Nbq1p3/rR2bnP1/bn2NNR1/k1b5/p3BQQ1/5nr1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 f4 c5+ Ke3 h3 b4 a4 d4 e6 b6 a3 d5 a2 f5 h2 g5 h4 b5 c3 b7 c4 Kd4 c2 f6 e3 f7 h3 b6 c3 Bc4 e2 Bb5 e1B Ne2 Bd7 Nf4 Be7 f8N Qe8 Rg1 h1R Rg4 h2 Qf3 Rg1 Nh7 h1N Nd2 Ra5 Qf2 Nh6 Be2 Ba4 Rb1 Bd8 Rb5 Na6 b8N Nb4 b7 Qc6 Na6 Ng3 Ba3 c1B Qg2 c2 b8Q+ Qc7 Qa8 Qc6 Qb7 Nf1 Qf7 Bg3 Nb1 Bd2 Nc3 c1B Qf2 Qd7 Kc4 Bb2 Ne4+ Ke5 Kc5 Bdc3 d6 Nf5 Qg2 Qb7 d7 Qc8+ Nc7 Ba1 Kb6+ Kd4 Bf3 Kc4 Be2+ Kb3 Qf2 Bdf6 Na6 Qc6+ Ka7 Bd8 Qg2 Be5 Qf2 Bac3 Qg2 Bdf6 d8Q Bc7 Qd4 Bfd8 Qdf2 B7e5 Bc1 Bh2 Be3 Ka3 Bc5 Bg3 Bf8 Bec7 Nd3 Bge5 Nf4 Bb6+
1B2n2n/4r2b/kpR1K1NP/b2Q2pq/r4NN1/Q7/1Q1n1rn1/1Bn1RbQ1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 g5 d4 c5 h4 Kc7 e4 Kb6 e5 f5 h5 f3 Ke3 f4+ Ke4 g3 h6 g2 e6 c4 Ke5 f2 d6 b3 a5+ Ka7 a6 c3 d5 b2 e7 f3 e8N b6 d7 c2 d6 Rh7 Nc3 b1N Nf6 Nc6+ Ke6 Nd2 Bd3 f1B Nge2 g1R Nf4 f2 Nce2 Ne5 Ng4 Nf6 Ng6 Nf7 Nef4 Rg2 Ra3 Bg7 Rc3 Nh8 Rc6 Ne8 Bb2 c1N Be5 Bb7 Bb1 Qc7 d8Q Rh2 Rc5 Be4 d7 Bed3 Bd6 Bc3 Rc6 Ba5 Qf6 Qc8 Qb2 Re7+ Kd5 Bc2 d8Q Qf5+ Be5 Qf6 Bc7 Qc3 Qd6 Qh3 Qda3 Qh5 Rg1 Bfd3 Re1 f1N Bd6 Rf2 Be5 Rd7+ Bd6 Ne3+ Ke6 Bf1 Bc7 Ng2 Be5 Rc7 Bd6 Kb8 a7+ Kb7 Be5 Ka6 Bd6 Rb8 a8Q+ Ra7 Be5 Rb7 Qd8 Rd7 Bb8 Rd4 Qd5 Ra4 Ne7 Bh7 Neg6 Ne4 Q1d4 Nd2 Qde3 Rf7 Qg3 Ra7 Qh2 Rd7 Qg1 Re7+
q1B1B1BR/4Pb2/p2N2Q1/p1n2b1Q/4NB2/rnQr2n1/k1n2nKb/1R4r1 w - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 e5 d4 cxd4 a4 exf4 a5 b6 Be3 bxa5 Bd2 Be7 Bc1 Bf8 Kf2 Ke7 b4 Kd6 c4 f5 e4 h5 g4 f3 b5 Kc5 b6 Kb4 b7 d5 c5 d3 g6 a6 g7 h4 e5 d4 g5 h3 e6 f4 c6 d2 c7 h2 g6 d3 Qe2 Kb3 Qe5 d1N+ Ke1 f2+ Kd2 f3 Qe2 Nc6 b8Q+ Nb4 Qe5 Bd6 e7 Rh3 Be2 f1B Ke1 Nf6 Bf4 Nd7 Qb7 Nc5 Qc6 Nf2 Qh5 Bf5 c8B Bc7 Nc3 Nc2+ Kd2 Kb2 g8B Rb8 g7 Rb3 Nb5 Ra3 Nd6 Bg2 Bb7 Qa8 Bc8 Rg3 Nh3 Bb8 Rhf1 h1N Ng5 Rg4 Rfd1 Ng3 Rh1 Bh3 Bd1 Be6 Rh2 Bf7 Rb1+ Ka2 Nge4 Rg6 Rh1 Bf5 Rh4 Nfh1 Be2 f2 Kd1 d2 Bb5 f1N Qc7 Ne2 Be8 Ned4 Rh2 Ndb3 Ke2 d1R Kf3 Nfg3 Kg2 Nf2 Rh1 Nd7 Qc3 Rd4 Qg4 Rd5 Rh8 Ndc5 Qh5 Bc7 Bh7 Rg4 g8Q Rd3 Qgg5 Rh4 Qgg7 Rh1 Bg8 Rg1+ Kh2 Qb7 Bd2 Qc6 Nb5 Bf4 Nbd6 Ngh1+ Qg3 Qa8 Bc1 Rgd1 Kg2 Be5 Qgg5 Bh2 Qgg6 Ng3 Bf4 Rg1+
Q2KnrR1/B2pN2b/3q1rB1/1rp1Q1bb/2P1bNnN/2Q2b2/k4N1n/3R4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 e5 h4 exd4 Qd3 g5 Qd1 gxh4 Kd2 Kf7 b4 Ke6 g4 Kd5 f4 h5 g5 a5 f5 c5 f6 e3+ Kd3 e2 c3 h3 b6 h2 g6 a4 b7 h4 b5 a3 f7 a2 g7 h3 b6 Be7 f8N Qc7 Nf3 Nh6 g8N Ra5 Bd2 Qd6 Rg1 h1B Bf4 h2 Qc2 Rb5 Nbd2 Ng4 Ne4 Na6 b8Q Bb7 Qa8 Bg5 Ng6 Nc7 Nfh4 Ne8 Rd1 a1R Nf2 Bf3 Bg2 Bc6 b7 h1B b8Q Ra6 Bg3 Rh7 Bh3 Rf7 Qc1 Rf8 N8e7+ Ke6 Kc4 e1N Rg2 d3 Nf4+ Ke5 Rg1 d2 Bf1 Bb7 Bd3 Bbe4 Bh2 Bh7 Bg6 Be4 Qa1 Bhf3 Rg2 Rb1 Qb4 Rb3 Kb5 Rb2 c4 Kd4 Qb3 Rb6+ Ka5 Rc6 Qbb8 Kc3 Qc7 Kb3 Qc1 Qf6 Qc3+ Ka2 Rg3 Qd4 Qe5 Rcf6 Rg2 R6f7 Ka6 Rb5 Ka7 Rf6 Rg3 Ra5+ Kb8 Qd5 Kc8 Qd6 Rc1 d1B Kd8 Ng2 Rb1 N2e3 Rc1 Bde2 Rd1 Nf1 Qed5 Nh6 Bf7 Bh5 Nfg6 Qe5 Qdd4 Be3 Rg5 Qd5 Bb8 B2f3 Ba7 Qd6 Qe5 Nh2 Rg3 Rb5 Rg2 N6g4 Rgg1 Bh6 Nf4 Ne3 Rg8 Bg5 Bg6 Neg4
nB2bQ2/rkp3n1/2pb1K2/1Bn3NP/3B1Nb1/4r1R1/1q1b2Qr/Q1R2B1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 Rh3 c6 dxc6 Qb3 Rh6 Qd1 Rh8 Kf2 Kd7 d4 g5 e4 f5 h4 a5 b4 f3 Ke3 f4+ Kd3 f2 e5 f3 Ke4 a4 Kf5 g3 d5 a3 d6 g4 b6 g2 b7 g3 b5 a2 b6 Nf6 Ba3 Ra7 Bb5 f1B Qd4 f2 Nh3 g1R Nc3 g2 Qd1 Bc4 Ne2 f1B Bb2 Bf7 Nef4 Nh5 Ng5 Be8 Rc1 a1N Bd4 Nb3 Rh3 Nc5 Rg3 Be2 Qa4 Bf3 Qa1 Re1 Bf1 Qe7 e6+ Kd8 d7 g1B Bb5 Be3 Ke5 Ng7 h5 Rh1 Bf1 Rh2 Bb5 Qd6+ Kf6 Bh1 Bf1 Bd2 Bb5 Nba6 b8Q Na4 b7 Qa3 Qa8 Qb2 b8B Bd6 Qb7 Qb1 Bf1 Rg8 Qbb2 N6c5 Qc2 Qb4 Qe4 Qa3 Qg2 Nb6 Qe2 Bf7 Qg2 Ne8+ Kf5 Qb2 Be5 Na8 Bd4 Ke7 d8Q+ Kf8 Qf6 Ng7+ Kg4 Ke8 Qf5 Kd8 e7+ Ke8 Bb5 Bce6 Bf1 Kd7 e8B+ Kc8 Bb5 Bg6 Bf7 Bd7 Bfc4 Re8 Bf1 Re6 Qf8+ Kb7 Nf7 Re1+ Kg5 Bg4 Kf6 Re3 Ng5 Be8
kbnBnb2/p1b2Br1/8/2P3bB/3K2b1/B4pNR/RrNQn3/3r1RqQ w - - 0 1 illegal: No possible last move
2brQ1qR/n4BNr/K2n3b/3bq3/b3Qr2/b1R1Q3/NBP1pp1k/3R1R2 w - - 0 1 illegal: No proof kernel
n2Q4/1bbr2Kb/B3rRRN/1RNqB3/5qQb/N4p2/PN1kp1q1/5b1n w - - 0 1 illegal: No proof kernel
bQ2Kn1r/1B4bR/bqQ4n/1n1Nr3/1q3R2/1B2P1Bp/4RpN1/b2R1b1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 Kh5 Ke4 g4 a5 b4 d5 c4 f5 e3 h3 b6 f3 g5 h2 b7 f2 g6 f4 g7 f3 c5 d3 b5 d4 b6 a4 c6 a3 c7 d2 Ba6 f1B Qc2+ d3 Ra2 d1Q Bd2 Qe1 Ne2 Nh6 g8B Bg7 Bb3 Nd7 b8Q Nf8 b7 f2 Bc3 Kf3 Nf4 d2 Ng2 d1N Be5 Qa5 Nc3 Qb4 Nd5 Nc3 Bg3 Nb5 Qc6 Ra7 Re2 a2 Rg1 a1B Rh1 Qdd6 Rg1 h1B Kg5 Bf5 c8R Bd3 Rc7 Qdc5 Rd7 Qb6 Rc7 Ng8 Re7 h5 Rd7 h4 Re7 Bge5 Rh7 h3 Kh5 Bg7 Kg5 Bc4 Kf5 Nd7 Kg6 Nf8+ Kf7 Nh6+ Ke8 Ra8 Qd8 Ra7 b8R Rf7 Rb7 Rf5 Qb8 Re5+ Re7 Nc3 Bc8 Ba6 Bb7 Nb5 Ngf4 Bfg2 Rd1 Bf1 Re6 Rf5 Rf6 Re5+ Ne6+ Kg2 Rf7 Rg5 Nef4+ Kg1 Rf5 Bg2 Rf7 Kh1 Rf6 Bf3 Ng2 Re5+ Qe6 Nf5 Nc7 Bc3 Bc6 Nh6 Rf4 Rg5 Ba8 Bfb7 Nd5 Ba1 Qg6 Bc8 Bc6 Bcb7 Qe6 Ba8 Bb7 Rh5 Qc6 Re5+
q1B1nQNq/4B2B/4r2b/1b2n3/kq1P4/1pr2QKp/nRB1n1NN/2R3n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 c5 g4 h5 e4 f5 a4 b5 d6 Kc6 e5 h3 a5 h4 a6 f3 d7 f4 a7 b3 e6 h2 g5 c4 e7 c3 e8Q b2 g6 c2 g7 h3 Qh5 b4 Nc3 b1Q Qe2 Nf6 g8B Bh6 Qd3 Ne8 Bh7 Ba6 Bg6 Bb5 Bd2 c1N Ne4 Na2 Ne2 b3 Rg1 h1Q N2g3 Rg8 Bh7 Rg6 Qe2 Re6 Qf5 Qc2 Qd1 Qc5 Nf6 Qb4 Bd3 Kb6 Rf1 Ka5 Rb1 Nc6 Rb2 Ka4 Bc2 Rc8 a8B Ne5 Ng8 Rc3 Qf8 Qf6 d8N Qh8 Bb7 Qg2+ Ke1 Qh1 Bc8 Qg2 Qe2 f2+ Kd1 f3 Bg5 Qh1 Be7 Qg2 Rh1 f1N Ke1 Ne3 Nf1 Nd5 Nh2 Nf4 Rf1 Qh1 Rg1 f2+ Kf1 Ra6 Ne6 Qa8 Rh1 Ng2 Nf4 Re6 Nd3 Nf4 Qf3 Ng2 Ke2 f1N Kf2 Ng3 Rc1 Ne2 Ne1 Ng1 Kg3 Nf4 Ng2 Nfe2+
1qB2K2/R4nB1/Q3n1b1/2N2BQN/q1p1p1N1/Pr1b2b1/qq1B4/1R2rkq1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 c5+ Kc4 Ke5 d6 Kf4 Kd5 e5 d4+ e3 g5 b5 f3 Kg3 g6 Kf2 d7 e2 Ke6 e1Q Kf7 c4 a3 b3 f4 e4 f5 b2 f6 h3 g7 h4 d5 h2 d6 h3 Nf3 b4 Bf4 b3 Bg2 Na6 Ne5 Qg1 Nd2 b1B Nf1 b2 Ng3 Bd3 Bd2 b1Q Nh5 Qb2 Qa4 Nc5 Rb1 Rb8 Qa6 Rb3 Bf3 Ne6 Bg4 Qa5 d8Q Qa4 d7 Bd6 Bf5 Bb8 Ke8 Nh6+ g8B Nf7 Ng4+ Ke2 Ke7 Bg3 Qda5 Qb6 d8N Qb8 Nb7 Qa2 Rhd1 h1Q Nc5 h2 Bgh7 Qg1 Rf1 Ne5 f7 h1Q f8B Qhg2 Bg7 Nf7 Q5b5 Bd7 Rf4 Be8 Bhg6 Ned8 Bc8 Ne6 Rf6 Q2f2 Bf5 Qd4 Rh6 Qdb2 Rh7 Rf8 Be1 Kf1 Qba5 Rc3 Bd2+ Rc1 Qd8 Re1 Qd5 Nh8 Qe5 Bg6 Qf6 Nf7 Qh4 Rd8 Qg5 Rd7+ Ke8 Nd4 Kf8 Rb7 Be5 Rb3 Bf6 Nh8 Ra7 Nf7 Bg7 Ne6+
5rQB/rb3n1B/N3qbb1/N5q1/pp1Bk3/4P1R1/Rqq1Nn1N/Q2q2K1 w - - 0 1 illegal: No proof kernel
5k1K/4qr1q/1rBQ2b1/3rb1PN/Q1qn2p1/1Q5R/qp1BRBqn/5N1Q w - - 0 1 illegal: No possible last move
q2b3b/5KB1/knr1bbB1/3P1b2/r2pqn2/3r1NpR/3R1NR1/2QQN2R w - - 0 1 illegal: No proof kernel
4NRb1/5n2/2K1k2r/3p1q2/1rNQb3/BP2Bbbr/1pB1q1Q1/RQn1b1Q1 w - - 0 1 illegal: No proof kernel
BNk2BB1/2N4Q/6nb/2pqQ1RN/5q2/2K1nq2/pnR1Pqbq/3rB2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Kd7 Kd2 f5 b4 c5 g4 h5 b6 a5 g5 h3 b5 h2 d5 c3+ Kc2 a4 g6 h4 b7 f3 b6 f2 g7 f4 d6 h3 Ra3 f3 Qd3 Ne7 g8B Bh6 Ra2 a3 Bb2 Ng6 Qd4 Na6 b8B Bb7 Bg2 f1N Qe5 f2 Bc1 Bf3 Bd2 Kc8 Be1 Ne3+ Kd3 f1Q Rc2 a2 Na3 Qh4 Nb5 Qff2 Nc7 Bc6 Be4 Qhf4 Bg2 Q4f3 d7+ Kb7 Rc1 c2 d8Q Nb4+ Kc3 Nd3 Qd7 Nb2 Qh7 Qd5 Be4 Kc8 Bg2 Ra4 Be4 Rd4 b7+ Kd8 Ba7 Rd1 b8N Kc8 Bb6 Qf5 Ba5 Qf3 Bh4 Qf1 Be7 Qf2 Bf8 Bb7 Nf3 Ba8 Rg1 h1Q Nd2 h2 Nf1 Qhf3 Ng3 h1Q Nh5 Qhh2 Rg5 Bc6 Nf4 Bd7 Nh5 Bh3 Bb4 Bg2 Ba5 Qd7 Ba8 Qdd5 Rb1 Nbc4 Rb2 c1Q+ Rc2 Qcd2+ Kb3 Q2d4 Bd2 Qdf4 Kc3 Nb2 Qhg7 Rh1 Be1 Rh7 Qh8 Rd7 Qhg7 Qc6 Qge7 Rd1 Qh7 Qcd5
1b2q1nq/QN2N2B/1N2K1Rb/qPq3p1/5p1Q/q5r1/2br2k1/1BB1RN1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 c4 g5 e4 f5 b4 a5 e5 f3 h3 Kg3 c5 f2 e6 a4 b6 a3 e7 d3 e8B a2 b7 f4 b5 d2 h4 Ra3 h5 Qa5 c6 Na6 b8N Bh6 c7 Nc5 Qe1 d1Q+ Qd2 Qb3+ Bc4 f1Q Qd1 Qf2 Nh3 Ne4 Bg6 Kg2 Re1 Ng3 Nd2 Nh1 Bb1 g3 Nf1 d6 Qe2 Bf5 c8N Bc2 Qe7 Qc5+ Ke6 d5 Nd7 d4 Ndb6 d3 Qa7 d2 Nf2 d1Q Ne7 Qd8 Ne4 Qe8 Nd6 Qbc3 Bd3 Rh7 Na8 Qh8 Nb6 Rf7 Bg6 Rf5 Bh7 Rd5 Nb7 Rd2 Qa8 Kg1 Qa7 g2 Bf5 Rg3 Bh7 Bg7 h6 Kf2 Bg6 g1B h7 Kg2 Bf5 Bh6 Bg6 Qhc3 h8Q Q3a3 Bh7 Bd4 Qf6 Bc3 Qg6 Bh8 Qh5 Be5 Qh4 Bb8 Re5 Q3c3 Rf5 Qg7 Rf6 Qh8 Rg6 Bd1 Bd3 Bc2 Rb1 a1Q Bf5 Qab2 Ra1 Bd1 Bb1 Bc2 Ba2 Rd4 Bd2 Rg4 Re1 Rg3 Bc1 Qba3 Bb1 Rd2
RbQ3nQ/q5b1/b3KpQr/NP2r1qb/B1n1R1N1/4B3/p2Nn1k1/2N3b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 h4 Ke5 e4 a5 b4 g5 h5 d5 b6 a4 b7 d3 b5 f3 Ke3 d2 c5 a3 h6 g3 h7 g2 c6 a2 c7 f2 Qf3 d1B Rh6 g4 Rg6 g3 Qg4 d4+ Kd3 Nc6 Kc4 d3 b8N d2 Bd3 f1Q Ne2 g1B Bc2 g2 Ba4 Nd4 Ra6 Bh2 Qg6 g1B Ra7 Ba6 c8Q Bh6 Kc5 Qb6+ Kc4 Qff6 Nc6+ Kd6 Na5 Ke5 Nb7 Rb8 Ra8 Qa7 Na5 Rb6 Kc5 Bg7 Kc4 Qg5 Kc5 Bc2 Kc4 d1N Be3 Rb8 Nc1 Ne2 Nd2 Rb7 Rb1 Re7 Rb4 Re8 Bf2 Kf4 e5 Nb2+ Kd5+ Nc4 Bb6 Kg3 Be3 Bf5 e6 Kg2 e7 Ne5 Kd6 Bg4 Re4 Bh5 Kd5 Rf8 e8N Nc4+ Qcf5 Bb8 Nf6 Rc8 Ng4 f6 Ke6 Rd8 Qc5 Rd5 Qc7 Ne7 Qc8 Re5+ Kf7 Rd8 h8Q Rg8 Qh7 Rh8 Qhg8 Rh6 Qh8 Rd5 Ke6 Ng8 Bb6 Rf5 Be3 Re5+
1b5r/1r1n4/BB1npq2/2Qb2KR/k1n2Np1/2QNq1B1/n1P1q3/1N2nRN1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 b4 d5 f4 Kd7 h4 g5 b6 Kc6 h5 Kb5 f5 a4 h6 e6 h7 d3+ Ke3 d4+ Kf2 g3+ Kg2 e3 Kf3 e2 Kg4 e1N f6 a3 b7 g2 f7 a2 Kh5 g4 Qf3 Bd6 f8Q Ka4 b5 d2 b6 d1Q Q3f7 d3 Bf4 d2 Q8g7 Nd7 b8N Ne7 b7 Qe2 Nc6 d1N b8B Nc3 Qff8 Nf5 Bc7 Rb8 Ne5 Bb7 Bg3 Bd5 Bb6 Qf6 Nd3 Rb7 Rh3 Be5 Qc5 Bb8 Rh1 Nd6 Rh2 Rc8 h8N Rd8 Ng6 Rc8 Nh3 g1Q Ngf4 Qge3 Ng1 Rh8+ Qh7 Qf7+ Kg5 Qf8 Qh3 Qf7 Nd2 Qf8 Rd1 a1N Nb1 Na2 Rc1 Qf7 Rd1 Nb3 Rc1 Rf8 Qh8 Na5 Qhc3 Rh8 Rh5 Qg2 Ne5 Qgf2 Ba6 Nac4 Nd3 Qfe2 Rd1 Ng2 Rf1 Ne1 Nf3 Qf8 Ng1 Qf6+
3BB3/1nn1Kb2/3P3q/qN1p1Br1/2QbpRN1/1r6/QnR1rN2/1n2k1nN w - - 0 1 illegal: No proof kernel
4b2k/K1N2Rb1/2bPqrnp/1R1RnN1p/4B3/2brRn2/1b1Q1Qq1/1N4B1 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 dxc4 h5 g6 Ra3 gxh5 Ra6 Nh6 Ra1 Ng8 Kf2 c5 g4 f5 d4 Kf7 b4 Kg7 e4 a5 d5 h6 b6 f3 Ke3 c3 d6 a4 e5 a3 e6 a2 e7 c4 Kd4 c2 Kc5 f4 e8R c3 b5 f2 g5 f3 b7 Qd7 Kb6 Ra3 g6 Qe6 Bf4 c1Q Bg2 f1N Ne2 f2 Be4 c2 Nd4 Rd3 Bh2 Nd2 Ka7 f1B b6 Qb2 Bg1 Nf3 Qd2 Nd7 b8R c1B b7 Ne7 Nf5+ Kg8 g7 Ng6 Rh2 Nde5 Rf2 Bg2 Rf1 Kh7 g8N Bh1 Nge7 Bg7 Nd5 Rf8 Nc7 Bd7 Rd1 Bc6 Re7 Be8 Rf7 Kh8 Qf2 Rc3 Rd5 Rd3 Qd2 Qc2 Qf2 Bb2 Qd2 Bc6 Re8 Bb5 b8Q Bc3 Ree7 Be8 Qb6 Bb2 Qbf2 Qc6 Na3 Bc3 Re1 a1B Re3 Bab2 Nb1 Bg2 Nh4 Bh1 Rf5 Rf6 Rf7 Qcd7 Rg5 Qg4 Rb5 Qde6 Nf5 Qg2 Ne7 Ng4 Rgd5 N4e5 Nf5 Nh2 Rdc5 Qg5 Ba8 Bd5 Bb7 Nhf3 Bc6 Qg2 Ba8 Bdc6 Bb7 Bcd7 Be4 Bc6 Rd5 Ba3 Qa2 Bc1 Qad2 B1b2
B1R4r/K3Nnqk/PQQB3b/2b1Nbp1/4r3/Q1p3R1/3qrb1Q/3n1b1R w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 e5+ Kc4 c5 Kb5 c4 d4 g3 f4 g2 a4 b3 h4 b2 f5+ Kh7 a5 g5 h5 e3 d6 e2 f6 e1B f7 e4 h6 e3 d7 e2 a6 Nc6 d5 Ne5 d6 Bf2 Ra3 e1R Nf3 g1B Qc2+ Re4 Nc3 b1B Bf4 Ng4 Ne5 Ne3 Bg2 Nd1 Nd5 b6 Qa4 Bd3 Ne7 Bf1 Rg3 c3+ Qc4 Qc7 d8Q Bf5 d7 Bg7 Qf8 Re8 d8Q Bc5 Qd4 Bf2 Qd6 Re2 Ba8 Qa7 Kc6 b5 Qb8 b4 Qb6 b3 Kb5 Bce3 Qcc6 b2 Ka5 Bc5 Kb5 Rd8 Ka5 Rd5 Qfb8 b1Q f8Q Rdd2 Qbd6 Re4 Qfb8 Bcd4 Qa3 Rde2 Qbd6 Bc5 Qd2 R2e3 Qe2 Qc2 Qh5 Nf6 Qh2 Re2 Kb5 Qd2 Ka5 Rb8 Kb5 Ng8 Ka5 Kh8 h7 Nh6 Kb5 Bf8 Ka5 Kg7 h8R Qad7 Rg8+ Kh7 Kb5 Bg7 Rc8 Q7d4 Nf7 Qf6 Bd6 Qg6 Ne5 Qf7 Rc7 Rh8 Rc8 Qf8 Qd5 Qf7 Kc6 Bf8 Kb7 Qg7 Qdc6 Qf7 Ka7 Qf6 Rhg1 Bg7 Qg2 Nf7 Qh2+ Bh6 Rh1 Qg7
2B1br2/N7/P1r1QBrn/p1Q1K1B1/k6p/nbQ1q1R1/5QNb/1b1R1qb1 w - - 0 1 illegal: No proof kernel
4nQBR/2q3Q1/p3Nn1b/1Q4B1/b5N1/2b1R2n/1PQbKR1p/kqb1r2r w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 d4 Ke6 f4 Kd5 b6 c5 g5 h5 b7 e5 g6 a6 f5 h3 f6 e3 g7 h2 f7 c3 Bh3 Kc4 d5 e2 d6 c2 d7 Kb3 Bd2 e4 Nc3 h4 Nb1 c4 Ra4 c3 Ra1 Qc7 d8R Bd7 Bg2 h3 Ra4 Nf6 g8Q Ne8 Bf1 Bh6 Ra2 Ba4 Na3 Nd7 Nc4 Ndf6 f8Q Ra7 Qb1 c1B Nf3 c2 Bg5 Bd2+ Kf2 e1B+ Ke2 c1B b8Q+ Rb7 Qgg7 e3 Nce5 Rh7 Rg1 h1N Rg2 Nf2 Ng4 Bc3 Qf5 Bed2 Qb5+ Kc2 Nd4+ Kb1 Ra3 Ra7 Rb3 Ka1 Qc8 Ra8 Ne6 Rb8 Kf3 e2 Rh2 e1Q Bc4 Qg1 Ke2 Rb6 Bd5 Rc6 Rg2 h2 Bc4 Nh3 Rf2 Rd6 Qa8 Qh1 Qe4 Rc6 Qc2 Qg1 Qgg8 Re7 Qgg7 Rc5 Bd3 Rc4 Bh7 Rf4 Bg8 Qh1 Rg2 Rf1 Rf2 Qg1 Rd3 Qh1 Re3 Qe4 Rb4 Rh1 Rd4 Qf5 Rd8 Qh7 Qd1 Qb1 Qc2 Qg3 Ra8 Qc7 Qff7 Rd7 Qe7 Nd6 Rc8 Be1 Bf7 Rd8 Ra8 Rd7 Rh8 Nde8 Qeb4 Rd1 Qbf8 Bed2 Bg8 Rde1+
1q3Br1/N4k1r/pqr2bN1/2BP2Qq/q3R3/1RpQn3/1Bn4N/1K1Bqb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 f5 d4 h5 Kd2 c5 Kc2 h3 e4 h2 g4 f3 b6 a6 b5 f2 e5 c3 g5 f4 d5 h4 g6 c4 b7 f3 b6 h3 g7 Rh7 e6 Nh6 g8N Ng4 e7 Nc6 b8B Kf7 b7 Qb6 Ra4 Bg7 Na3 Nb4+ Kb1 Ne3 Be2 f1Q Nb5 f2 Na7 Nbc2+ Bb2 Bf6 Nf3 Qe1 Bd6 f1Q b8B Qh4 Rg1 h1Q Rg3 h2 Bc5 Qe1 Bbd6 Bh3 Qc1 Qhf1 Bd1 h1Q Nh2 Qff4 Rf3 Bf1 e8Q+ Kg7 Qe4 Kf7 Be7 Qfb8 Qd3 Qh5 Rg3 Qe4 Bf8 Qee8 Rb4 Qa4 Ne7 Na3+ Ka2 c2 Qcd2 c1R Ng6 Rc2 Rb3 Rc3 Rg4 Nac2+ Kb1 Qbg3 Bg7 Rg8 Re4 Qf4 Bgf8 Qfb8 Rb4 Rb3 Qg2 c3 Rb5 Rb4 Qg5 Rd4 Rb3 Rc4 Bca3 Rc8 Bac5 Rc6
k5n1/1Rrb1Bbp/1Q1nQR1q/NKN1q2R/7Q/4n1R1/pP1nr3/2b3Bn w - - 0 1 illegal: No possible last move
3r1qn1/bBqR2qp/R2p2Bk/7P/2BQ1bR1/1b6/3bb1n1/1KNrNQR1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 f4 c5 f5 cxd4 Bf4 gxf4 Kd2 Kf7 Kc1 Kg7 h4 e5 g4 a5 c4 f3 b4 e3 b6 d6 g5 e4 g6 e2 b7 e1Q h5 e3 f6+ Kh6 g7 d3 c5 a4 b5 a3 f7 a2 c6 f2 b6 e2 c7 Nc6 b8R Bg4 c8B Nce7 b7 Qc7+ Nc3 Nd5 Nf3 Ne3 Rg1 d2+ Kb2 Be7 f8Q Bg5 Bf5 Bf4 Bg6 Ra7 Bg2 f1Q Rd8 Qg3 b8R e1B Rb4 Qff2 Bh1 Ng2 Ne2 Ra4 Re4 Rd4 Nc1 Be6 Rd7 Bb3 Qf6 Rd3 Qe2 d1B Qd4 Bed2 Qf1 Be2 Ne1 Qff3 Re5 Qa8 Rg5 Qf8 Rg4 Ne3 Bb7 Ng2 Rb1 a1B+ Ka3 Bac3 Ra1 Ba5 Kb2 Bb6 Kb1 Ba7 Ra2 Bb4 Ra6 Rd1 Ka1 Bbd2 Kb1 Nf6 g8B Qgc3 Be6 Ng8 Bc4 Qg3 Qb6 Qc3 Qe3 Qcg7 Qd4 Qf5+ Nd3 Ne7 Qe3 Rd8 Qd4 Qff8 Ne1 Ng8
8/1k4P1/pBN1n3/2Rq1p1q/Nr1NB2b/1rnQK1Rn/2nQ1Rb1/qn1R4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 h5 e4 d5 c4 Kd7 g4 Kc7 b4 f5 e5 f3 e6 h3 c5 h4 g5 d3 c6 h2 g6 h3 e7 d4 e8R a6 g7 d2 Ra2 d3 Re7+ Nd7 Bg2 Nf6 Qa4 d1Q Na3 d2 Nb1 Nd5 Qa3 Bb7 Re3 Nc5 Ne2 Be7 Nbc3 Rb8 Na4 Rh4 Qd3 Ne6 b6+ Kc8 b5 Nb4 Re1 h1Q c7 h2 Bb2 Bc6 Bd4 Qa1 Bc5 Rc4 Nd4 Be4 Rg1 Qd5 Ree1 Bf6 Ke3 f2 Bf3 Rb7 Rg3 Be7 Rc1 Qd1 Rb1 h1N Bg2 Rb8 Rc2 Bh4 b7+ Kd7 c8R Qh5 b6 d1N+ Kd2 Rc3 Bf3 f1N+ Ke2 Ndf2 Rd1 Nd2 Ke3 Nh3 Bg2 N1f2 Rc6 Rh8 b8Q Nb1 b7 Bf3 Bh1 Ne4 Rf2 Ra3 Ba7 Nec3 Rc5 Rg8 Qf4 Rh8 Qg4 Rb3 b8N+ Kd6 Nbc6 Kc7 Qd2 Rb8 Qe4 Rb6 Qed3 Kb7 Bg2 Rb5 Bf1 Bh1 Bg2 Rb6 Be4 Bg2 Q3e2 Rb5 Bb6 Nc2+ Kd3 Nca3 Ke3 R5b4 Qed3 Nc2+
5R1B/1Rb3pb/Kr1bn2k/1B2N1r1/1bQ1BQ1r/1NPnpB2/5Qq1/2q3b1 w - - 0 1 illegal: No possible last move, all moves rejected
2B5/5Qp1/rqr2b1P/3rqn2/1NQQ1N1R/krB2K2/pbR2Rnr/2Qb4 w - - 0 1 illegal: No possible last move, all moves rejected
n2RB1bn/B2r1P2/B5pk/nN1rnb2/1RN1n3/q1q1b1Q1/2KBpQ2/2R5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kg6 c4 a5 f4 d5 b4 e5 b6 e3+ Kc2 e2 c5 e1Q h5+ Kh6 b5 e4 b7 e3 b6 g3 c6 d3+ Kb2 g2 f5 a4 f6 g6 c7 d4 Qb3 a3+ Ka2 d2 Ba6 d1B Ne2 g1N Qb2 d3 Nbc3 d2 Kb1 Qd6 Na4 Bf5+ Qc2 a2+ Kb2 Ra7 c8B Nd7 b8Q Nf3 b7 Nfe5 Kc3 Nb6 Nb2 Na8 Rb1 a1N Nd4 Nb3 Nc4 Na5 Nb5 Qa3+ Rb3 Rh7 Bd7 Bc5 Be8 Rd7 Qd6 Rd8 b8B Rad7 Ba7 Bf3 Qdd3 Bd5 Qa2 d1N+ Kc2 Qeb4 Bd2 Nf2 Rc1 Ne4 Qb2 Bf7 Qd6 Bb6 Qc7 Qc5 Rb4 Rd5 Qb8 R8d7 Qc7 Nd3 Qg3 Ne5 Qd4 Qc7 Bc3 e2 Qdf2 Be3 Bd2 Ne7 Qgf3 Nc8 Q3g3 Kh7 h6 Ncd6 Qh4 B7e6 Qh3 Ndf7 Qhg3 Kg8 h7+ Kf8 Bc3 Nh8 Be1 Bg8 Bd2 Nhf7 h8R Qc5 Rh5 Nh8 f7 Kg7 Rg5 Kh7 Rg4 Kh6 Rf4 Be6 Rf6 Bf5 Rd6 Re7 Rd8 Red7 Qgf3 Qd4 Q3g3 Qdc3+
Bk5n/5pn1/1pbb1qQB/R2qr1nr/1RQN3B/P1R5/nB1Nb3/K5n1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 h5 Kc2 c5 Kb2 Kc7 g4 c4 e4 h3 g5 h4 g6 b3 g7 b6 a3 h2 e5 h3 e6 f3 e7 f2 e8R Bd6 Qe2 Bb7 Bg5 c3+ Kc1 c2 Kb2 c1N Qd1 Nc6 Re4 Nh6 g8Q Ne2 Qg6 Ne5 Bg2 f1B Qc1+ Bc6 Nf3 Qf6 Nbd2 Ng1 Qc4 Ra5 Rc1 Be2 Rc3 Nf5 Ka1 Rh5 Bh6 Kb8 Rh4 Ng7 Re4 Bc7 d6 Rc5 d7 Bd6 d8B b2+ Kb1 Rb5 d5 Ra5 Ka2 b1N Ka1 Rb5 Nd4 Rc5 Rc1 Nc3 Rc2 Na2 Rc3 Qf2 Bh4 Qf6 Qg3 Ng6 Re5 Bf8 d6 Nh8 d7 Bd6 d8B Ra5 Rf5 Re5 Qg6 Nf3 Bg3 Ng5 Rb1 h1Q Bh4 h2 Be4 Qg2 Rb4 h1N Be7 Nf2 Bf8 Re7 Ra5 Nfh3 Bf3 Re5 Be4 Ba4 Ba8 Qd5 Be7 Ng1 Bf8 Ne8 Bfg7 Bc6 Rf3 Qd8 Ne6 Re3 Bb2 Re5 Nd4 Qf6 Rc3 Ng7
R1b1q1KB/B2BpN2/1pq1RQn1/2nr4/1nN4P/4R1Q1/1b1n2n1/1kb2R1r w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 g5 f4 g3 a4 g2 a5 b3 d4+ Kb4 d6 c5 d7 g4 Ke6 e3 Kf7 g3 h3 b6 f5 e2 a6 e1N a7 b2 d5 c4 f6 c3 d6 c2 Na3 Kb3 Qf3+ Nd3 Nc4 b1N Bb2 c1B Ra3+ Kc2 h4 Rh5 Ba1 Nb4 Re3 Bg7 Nh3 g1Q Ng5 g2 Qg3 N8a6 Be5 Qc7 d8B Nd2 d7 Qc6 Bdc7 Nc5 d8R Kb1 Rd6 Qh2 Bb2 g1N Bh3 Ngf3 Bb8 Ne1 Rde6 Ng2 Rf1 Bh8 Kf8 Qg1 f7 Nf6 Ba1 Nh7+ Kg8 Bb2 f8Q Qh1 Qf7 Nf8 Qf6 Qe8 Nf7 Rd5 Qff2 Ba3 Bh8 Bb2 Qf6 Qh2 Qgf3 Qd6 Qg3 Qdc6 Bd6 Rb8 a8R Rb7 Be5 Ra7 Bb8 Ra3 Ba7 Rb3 Ref3 Re3 Bg4 Re1 Rfe3 Rd1 R6e4 Re1 Bd7 Rd1 Re6 Re1 Rf5 Rh1 Rf1 Ng6+
2bQ1rk1/3PQq2/1n1R1b1b/R3RbB1/nb5p/1RrB2NN/3N1p1q/5n1K w - - 0 1 illegal: No possible last move
1kB1bK1b/Rrrp3P/7R/r3n1r1/4QQq1/1Nnr2B1/2N1NBnp/1Nq5 w - - 0 1 illegal: No proof kernel
2kBb1B1/1bP5/1b3N1r/Q1n2nq1/Q1qNpRp1/2rR1n2/5nK1/n1QNN3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 a5 Kf2 e5 b4 g5 h4 d5 c4 Kd7 c5 e3+ Kg2 g3 h5 d3 h6 e2 c6+ Kc7 h7 e1Q b6+ Kd6 c7 Kd7 f5 g4 f6 e4 b5 a4 f7 a3 b7 d2 b6 d4 Rh3 a2 Bc4 d3 Nf3 Ne7 Nc3 Na6 b8Q Nc5 b7 Nf5 Qa7 Qg5 Qa5 Bh6 Qc2 d1N Qb2 Qee3 Ne1 Nf2 Nd1 d2 Bd5 Qd3 f8N+ Kd6 b8N Bb7 Qba3 Qc4 Bg8 Ke7 Rb1 a1N Nbd7 Ra6 Q3b4 Rc6 Ne6 Bg7 Qba4 Bd4 Nf6 Be3 Nh5 Kd7 Nf6+ Kc8 Rb3 Bd4 Rf3 Be3 Rf4 Bd4 Kg1 g2 Rd3 Be3 Kh2 g1N Kg2 Nf3 Bb2 Bd4 Bc3 Be3 Be5 Bd4 Bd6 Be3 Be7 Bd4 Bd8 Be3 Nb2 d1B Nd4 Bb3 Nd1 Ba2 Qc2 Bb3 Qc1 Ba4 Ne8 Rh6 Nf6 Bb5 Bd5 Rf8 h8Q Be8 Bg8 Rf7 Qh7 Rd7 Qe7 Rd6 Qa4 Rb6 Qd6 Rb3 Qb6 Rc3 Qba5 Ne6 Nc6 Bb6 Nd4 Nc5
1brbQn2/2P4p/n1qpRQR1/1n3b2/1kN3nq/2n2B2/K1B2B2/Q1rQ2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kd6 g4 Kc5 c4 a5 Kc2 f5 Kb3 a4+ Ka3 f3 b6 f2 b7 d3 e5 d2 b3 f4 e6 h3 e7 f3 e8B h2 g5 Bd6 g6 Na6 b8Q Ne7 g7 Ng6 g8Q Nf8 Be2 f1N Bg6 f2 Qe6 Qh4 Bc2 Ne3 Bf3 f1N Ka2 a3 Qa7+ Kb4 c5 Nd5 c6 Ndc7 Qf6 Nb5 Bb2 Bb8 c7 d6 Bd4 Bf5 Bf2 Ne3 Qad4+ Ka5 Qa7 Ng4 Qad4 Na7 b4+ Kb5 Qde5+ Kc4 b5 Kb4 b6 Nb5 b7 Rg8 Qde2 d1N Nd2 Rg5 Rc1 Rg7 Nc4 Ndc3+ Ka1 a2 Re1 Re7 Qd1 Re8 Qed4 Rc8 Re6 Ra7 Nh3 Ra8 Rg1 h1Q Rg3 Qg2 Ng1 Qgh1 Be2 Qc6 Bf3 Ne3 Rg6 Ng4 Kb2 a1B+ Kc1 Nd5 Kb1 Bc3 Qde5 Bd2 Qa1 Bg5 Qg7 Bd8 Qgf6 Nc5 Kb2 Ra3 Kb1 Rc3 Ka2 Na6 Na3 Ba7 b8Q Rc5 Qa8 Rc3 Nc4 Bb8 Bd3 Rc1 Bc2 Qb6 Qc6 Qb7 Qd7 Qc6 Qe8 Ndc3+
R1bQnkbb/Q1pB4/1P1Nr2R/6n1/n3NBp1/3nrR2/2nN2q1/1KN4q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 g5 e4 a5 d4 f5 Kd2 c3+ Kc2 a4 h4 a3 d5 a2 b6 f3 e5 f2 e6 g3 b5 g4 h5 f4 b7 f3 h6 g2 b6 Nd7 b8N Qh4 d6 Ngf6 h7 Bg7 e7 Nc5 Ba3 Na4 Ne2 g1N Nd2 Nh3 Nc1 Ng5 d7+ Kf7 d8Q Re8 Ba6 f1B h8R f2 Rh3 Bc4 Rf3 f1Q Bd6 Qhh1 Bb5 Qfg2 Rh6 Bh8 Bd7 Kg7 Qe1 Bg8 Bf4 Ra5 Qe2 Re5 Na6 Re3 Nc5 Re6 Qa6 Kf7 Kd3 c2 Qa7 Kg7 Nce4 Kf7 Ne2 c1N+ Kc2 Nd3 Nc1 Kg7 Rb1 Kf7 Rb5 a1N+ Kb1 Nc2 Ra5 Rf8 Ra6 Ne8 Ra5 Kg7 Ra6 Rf5 Ra5 Rfe5 Ra6 Nf6 e8N+ Kf8 N8d6+ Ne8 Qb7 Rg6 Ra8 Re7 Qa7 Rge6 Ng3 Re3 Nge4 Re6
qr3Q1n/1Rpn1b1B/PNK1qRB1/4B1qQ/1r3Bn1/1n1R2n1/1p3b2/kN6 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 b5 a4 h3 d4 f3 e3 b3 d6 h4 Kd5 h2 e4 f2 d7 b4 a5 h3 a6 b2 Ra5 b3 Qc2 Bc5 Ra3 Nh6 Be2 f1Q Bb5 Qe1 Bf4 Qe7 d8Q Nd7 Bd3 Rb8 Qc1 Rb4 Kc6 Rf8 d5 Bf2 d6 Re8 Be3 Ke5 g5 f5 g6 f4 g7 f3 g8B Qg5 Bh7 Nf7 Ne2 Nh8 Rf1 h1N Nec3 h2 Na4 Ng3 Bf4+ Kd4 e5 h1Q e6 Rg8 e7 Qe6 e8R Rf8 Nd2 b1N Nb6 Qg2 Bc2 Kc3 Qd1 Kb2 Bcg6 Rg8 Rf8 Qh1 Rf6 Re8 Ne4 Nd2 Nc3 Rg8 Nb1 Re8 Ra5 Rg8 Re5 Ka1 Rb5 b2 Qf8 Nb3 Qd5 Bd4 Rc1 f2 Rc3 f1N Rd3 Bf2 Be5 Ne3 Qf3 Qe1 Qe2 Qe8 Qh5 Ng4 Bf4 Ndc5+ d7 Q1e6+ Qd6 Qf8 d8B Nd7 Be7 Qe8 Bf8 Qd8 Bg7 Qee7 Nc4 Ndc5 Rf7 Be6 Bge5 Qa8+ Rb7 Rb8 Nb6 Nd7 Rf6 Bf7 Qc5 Qe8 Qf8 Qe6+
1rrb3n/qP1bKR2/1N2R3/1bB1Q3/b1p4Q/Q2r2p1/Q1B2bqn/2R1Nk2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 b4 a5 d5 Ke5 d6 g5 h5 f3 Kg3 c3 h6 f2 h7 a4 b6 a3 d7 f4+ Kg2 g3 Kf3 c2 Kg4 a2 b7 f3 b5 g2 b6 Nh6+ Kh5 g4 Kg6 g3 Bb2+ Kf4 e5 Ke3 e6 c1R e7 Nf7 Kf6 Nc6 b8R Nd4 b7 Ra3 Bc4 f1B Nd2 Kf2 Rh6 Rd3 Bb3 Rc4 Rc1 a1Q Bc3 Qa7 Bb4 Qc7 e8Q Qc6+ Qe6 Bd6 d8Q Bc7 Ke7 Bd7 Qd6 Rf8 Re6 Nh8 Ba4 Be2 Qc2 Bd1 Qb2 Rcc3 Nc4+ Kf1 Qc2 f2 Nf3 g1B Ne1 Qg2 Qa2 Nf3 Nb6 Nh2 Bc2 Rc4 Ra8 Rg8 Qf8 Rcc3 Qff4 Rb8 Qh4 Rc4 Bb1 B1a4 Bc2 Rf4 Qe5 Rff8 Qc3 Rfc8 Qca3 c4 Bc5 Bdb5 Rd6 Ke2 Rf6 f1B Rf7 Bf2 Nd5 Qb6 Ra6 Qa7 Rd6 Qh1 Rg6 Bh3 Nb6 Bhd7 Re6+ Kf1 Kf6 Ng6 h8Q Qg2 Qg7 Nh8 Ke7 Rf3 Qgd4 Rd3 Qe5 Bd8+
B2k4/1p1BrbnQ/bN5R/2nRPB2/RN2n1Q1/2b2r1p/2n5/1KBn2qq w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 c5 Kd2 h5 Kc2 f5 e4 c4 a4 b3+ Kb2 f3 g4 f2 a5 h3 d6 c3+ Ka3 b2 Ka2 h4 g5 f4 g6 c2 d5 f3 a6 h2 a7 h3 g7 Nf6 g8B Bg7 Qd4 Nh5 Be6 Qb6 d7+ Kd8 Nc3 b1N Bf5 Rh7 Na4 Na3 Bb5 f1N Ne2 f2 Nec3 Nfg3 Re1 h1N Re3 Qg6 Nb6 f1B Qd1 Nf2 Qg4 Nd1 e5 Bf8 Re4 Re7 Ra4 Na6 Rb1 Rb8 a8B Ng7 Ka1 Bc4 Na2 Ne4 Nb4 Nac5 Bc6 Ba6 Rb3 Kc7 d8R Be6 Bd7 Bf7 Rd3 Qg5 Rd4 Qe3 Re8 Qg1 Rd3 Rc8 d6+ Kb8 Rd5 Qh1 Bb2 c1Q+ Ka2 Qg5 Bc1 Nc2 Kb1 Qe3 Rd8 Qeg1 Re8 Nge6 Rd8 Bh6 Rh8 Bd2 Rh6 Ng7 Bb5 Rd8 d7 Rf8 Bc6 Bc3 d8Q+ Ka7 Qd7 Kb8 Qe6 Kc7 Bd7 Kd8 Qeg6 Bg8 Qh7 Be6 Bg6 Rf3 Bf5 Bf7
2rnB3/Bp1nqq2/1Q1K3p/1Nr2B1R/3RP3/N5kq/Rn3qB1/4Qqbb w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 d5+ Kb5 b3 g4 h6 e4 b2 a4 f3 c4 f4 c5 f2 c6 d3 a5 f3 a6 d4 a7 d2 c7 Kf4 g6 d3 g5 Bc5 g7 Nd7 g6 Ne7 g8B Kg3 g7 Nc6 Bg2 f1Q Ra4 f2 Na3 Qe7 Rh5 Nd8 Qe1 d1Q Bf7 Qg4 Be8 Qh3 Rd4 b1Q+ Bb2 Qc1 Nf3 Qf4 g8B Qff7 Bh7 Rg8 Bf5 Rg5 Ba1 Rb8 a8R Qg1 Bc3 d2 Bb4 Bb6 Bc5 d1N Ra5 Nb2 Raa4 Ba5 Ba7 Bb6 Ra5 Rg6 Ra6 Rc6 Raa4 Rc5+ Kb4 Ne5 Ra6 Be6 c8Q Nd7 Qc6 Rc8 Ra5 Bb3 Qf6 Bd1 Ra6 Bc7 Qb6 Be5 Nd2 Qf1 Ndc4 Bf3 Nd6 Bf4 Ndb5 Be3 Nb1 Qg1 Ra2 Qf1 N1a3 Qg1 Qb1 f1Q Qe1+ Qgf2 Qb1 Q2e2 Bh1 Bg1 Qe1+ Qff2 Bg2 Qd3 Bf1 Bh1 Bg2 Qf1 Qe6 Qef6 Qb6 R5c7 Qc6 Nf8 Kc5 Q7e7+ Kd5 Nd7 Qb6 Rc2 Be6 Qef7 Kd6 Qg5 Bg4 R2c5 Bf5 Qge7#
n4R2/PNb3N1/2Q3qQ/NBb4Q/R1pBr1bn/1pq1b2r/1n5Q/1K1k3b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Ke7 Kd2 Kd6 Kc2 c5 a4 b5 e4 g5 h4 f5 h5 f3 h6 f2 h7 f4 a5 c4 a6 g3 a7 b3+ Kb2 g4 Be2 f1B Rh4 g2 Bd3 f3 Ne2 g1B Bc2 g3 Rh6+ Qf6 Ra3 g2 Rh5 b4 Be3 f2 Nf4 Bg4 Nd2 Na6 Ra4 Ne7 Rf5 Nc7 Nh5 Ng6 Ng7 Re8 Kb1 b2 Nb3 Na8 Na5 Nh4 Rf4 Bh2 e5+ Ke7 e6 Kd6 e7 g1B Bf5 Bg2 Bd7 f1N Bb5 Bh1 Qc2 Bg3 Qh2 Qe5 Bf2 Ne3 Rf5 Nd1 Rf6+ Kc7 d6+ Kb6 d5+ Qd4 d7+ Kc5 d8N Bc7 d6 Kd5 d7 Ke4 Ndc6 Kd3 d8Q Ke2 Qc8 Qc3 Bd4+ Ke1 Nd8 Be3 Qf4 Kd2 Qh6 Ke1 Qa6 Kd2 Ndb7 Ke1 Qc6 Kd2 Ka2 b3+ Ka3 b1Q Rf3 Rg8 h8Q Nb2 Q8h7 Rh8 Qc2+ Ke1 Qh2 Kd1 Rf4 Rd8 Rf2 Rd6 e8Q Qg6 Qee5 Be7 Qeh5 Rh7 Rf8 Re6+ Qcd6 Re4 Qdc5 B7g5 Qc6 Be7+ Qhc5 Nd3 Qg5 Nf5 Qgf4 Rh3 Qh6 Nb4 Qce5 Nh4 Qed5 Bc5 Qdh5 Qe1 Kb2 Qc3+ Kb1 Nd3 Rf2 Nb2 Rf1+ Qe1 Rf8 Qc3
6RQ/P2Rrn1q/nN1r1b2/Kb2qqp1/2b1NBBN/1q5Q/3RpN2/q5k1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 d4 Kf7 Kd2 Kg6 f4 Kh5 h4 c5 a4 e5 d6 g5 d7 b5 a5 e3+ Kc2 b3+ Kc3 e2 a6 e1Q+ Qd2 b4+ Kc4 g3 Kb5 Kg4 a7 g2 h5 Kg3 f5 e4 d5 e3 f6 b2 h6 c4 h7 c3 f7 b3 d6 c2 Nf3 g1Q Nh2 Qe7 d8R Nh6 d7 Na6 Qd3 Kf2 Qc3 Qg3 Ra2 Bg7 f8N Bf6 Nd2 b1Q Bh3 b2 Bg4 Nf7 Ka5 e2 Nhf3 Qf1 Ne4+ Kg2 Bf4 c1Q Nf2 Qe5+ Kb6 Rg8 h8Q Rg6 Rh7 Rg7 Nh4+ Kg1 Qb3 Qa1 Re8 b1B d8N Bd7 Rd2 Bd3 Nde6 B7b5 Nc5 Qcb1 Nfd7 Bdc4 Rg8 Rd8 Nce4 Qc2 Qa3 Qgb3 Ka5 Qfh3 Nb6 Rd6 Bh5 Qhf5 Bf3 Nd8 Bg4 Rb7 Rd7 Nf7 Rdd8 Re7 Rd7 Qab2 Qb4 Qcb1 Qc3 Qh7 Qh3 Q1c2 Nc5 Qcf5 Nce4 Qa1+
N4Qb1/pb3Q2/r3q1rB/kBBNnPb1/1nRb4/p1qQRQr1/1b6/1K6 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 d4 Kd7 Kd2 e5 Kc2 c5 g4 Kc7 f4 Kb6 b4 h5 b5 h3 g5 c4 g6 h4 f5 c3 g7 h2 d6 a3 d7 e3 d5 e2 d6 e1Q Bf4 h3 Qd2 e4 Qf2+ e3 Bg5 Qf6 Ne2 Ka5 b6 Rh6 d8Q Qe6 d7 Rg6 Qe8 Nc6 d8Q Bc5 Qg3 Bd4 Nf4 e2 Nd2 Bb7 Bh6 Ne5 Nd5 Ne7 g8Q N7c6 Rc1 Nb4+ Kb1 Rb8 Rg1 h1B Qgf7 h2 Qf3 Bg2 Qd6 h1R Qef8 Rh3 Qdd7 Rhg3 Nc4+ Ka6 Qdd8 Rc8 Rh1 Rc6 Rh3 Qd2 Rc2 e1B Qdd6 Qe3 Qdd7 Bd2 Be2 Bc8 b7 Bf1 b8B Bb7 Ncb6+ Ka5 Bb5 Bc4 Na8 Ra6 Rc1 Qe1 Bd6 Bg5 Bc5 Qd2 Re1 Bb3 Re3 Bc4 Ka1 c2+ Rc3 c1B Kb1 Bb3 Re3 Bcb2 Rh4 Bdc3 Rc4 Bd4 Nf4 Qc3 Qdd5 Bc1 Qde4 Bb2 Nd5 Ba1 Qc2 Bb2 Qd3 Rb6 Ne7 Ng4 Q7e8 Qc8 Qd7 Ra6 Qde8 Nc2 Rb4 Bg8 Qef7 Ne5 Nd5 Qe6 Rc4 Nb4
1RN1nK2/p3r1QR/R1Q1Rrp1/3b2n1/qB1P3b/b1bb1r1B/Q2N4/6kq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 e5 f5 d3 c5 b6 c3 h5 c2 b5 c4 h6 f3 Kg3 c3 Kf4 f2 b7 g3 b6 g6 e6 g2 e7 Nf6 Kg5 f4 e8R f3 h7 Bb4 Kh6 Rf8 Kg7 Be6 h8R Bd5 Ra4 Nbd7 b8Q Ne5 b7 Qa5 Be2 f1R Qd6 f2 b8Q Nf7 Bd2 c1B Qbc7 c2 Qdc6 Ba3 Nh3 g1Q Bg4 c1B Re6 Rae8 Qdc2 Re7 Ng5 Qa6 Ra5 Bc3 R1h7 Qh1 Ne4 Qc4 Rg8 Qa4 Qa2 B1b2 Be1 Ke3 Bh3 Bc1 d4 Kf3 Rd6 Bg5 Re6 Bh4 Nd6 Kg3 Q7d7 Kh2 Ra6 Kg1 Nc8 Nh6+ Kh8 Ne8 Nd2 Rf3 Rf8 Nf7+ Kg8 Bcb2 Nb3 Rf6 Bb4 Bc3 Qdb7 Re1 Nd2 f1B Qbc7 Bd3 Qe5 Rf3 Qh8 Ref1 Qg7 Ned6 Rd8 Ne8 Kf8 Rf6 Rd7 R1f4 Rb7 Rf3 Rb8 Ng5+
nnrk3r/p1q3Bb/1qRP1b1n/2Q2K2/BnQQRn2/2N3p1/3QN3/3b2N1 w - - 0 1 illegal: No possible last move
4N2k/p3nn1P/RR1Qbb1n/5q1Q/2r1pb2/4b1BB/3BBN1r/2K1Rbq1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 f4 e5 c4 g5 b4 Kg7 h4 d5 h5 g3 f5 d3 c5 e3+ Kc3 d4+ Kb2 d2 b6 g2 b7 e4 b5 e2 b6 e1N c6 g4 c7 d3 Nf3 g1B Qe2 d1Q Nbd2 g3 Ne5 g2 Ra6 Qd5 Ndc4 d2 Nd6 Nh6 Ng4 Be7 Nf2 Nc6 b8R Be6 c8B Bh2 b7 g1B f6+ Kh7 f7 Nf3 f8Q Ng5 Bd7 Bf4 Ne8 Qf5 Qb5 Qdg4 Be2 d1B Bd2 Bf6+ Kc1 Ngf7 Qd6 Ne7 Qbd5 Bc2 Bc8 Bd3 Bd7 Bgh2 Re1 Be3 Bc8 Bhf4 Q5c5 Nhg8 h6 Qg1 Qa5 Qh3 Qh5 Qf5 Bd7 Bdc4 Rc8 Rb8 Rcc6 Rc8 b8B Bb5 Bd1 Bf1 Be2 Bc3 Rcb6 Rc4 Bd1 Nf6 Bf3 Ng4 Be2 Kg8 Bc8 Rh7 Bd7 Kh8 Bc8 Rg7 h7 Ngh6 Bd7 Rg2 Bc7 Bd5 Be6 Rh2 Bc8 Qf6 Bh3 Be6 Bb8 Qf5 Qd5 Bg5 Bg3 Bgf4 Qd6 Bf6+
1Q2r2n/pQ1RNprk/B4Bq1/q1Rn1NK1/3bbR2/n3n3/1P2B2r/4nR2 w - - 0 1 illegal: No possible last move
RB3KN1/1nQ2n1k/p4b2/1Q1rN2n/B2Pn2q/1r3Rpb/B7/N2N1nnn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 e4 f5 b4 Kf7 d4 Kg7 h4 c5 h5 c3 h6+ Kh7 e5 c4 b6 g3+ Kf3 c2 b5 c3 b7 g2 b6 Bb4 e6 Nf6 e7 Nh5 e8B Be7 Bc4 Bf6 Na3 Na6 b8N Nc5 b7 Ne4 Nd7 Rb8 Qf1 a6 Nh3 Rg8 Ne5 Rf8 Bd2 c1N Ba2 c2 Nf2 Nd3 Nd1 c1N Ba4 Nb3 Nc2 Na5 Rc1 Rf7 Na1 Rd7 Rh3 Rd5 Rg3 Be6 Rc8 Qe7 Bb4 Qd8 Bd6 g1N+ Kg2 g4 Rf3 g3 Bc7 Ndf2 Qb5 Ng5 Bd6 Nf7 Bc7 Ra8 b8Q Nh1 Q8b7 Qh8 Bb8 Ra7 Qc7 Rb7 Qe8 Rb3 Qb5 Nb7 Rf8 Ne2 Kh3 Bd7 Ba7 Be6 Ra8 Qd8 Bb8 Bd7 Re3 f3 Rc3 f2 Rf3 Kh8 h7 f1N Ba7 Kg7 h8N Kh7 Nhg6 Nd2 Ne7 Ne4 Bb8 Bc8 Ng8 f4+ Nd7 Ng1+ Kg4 Be5 Kf5 Qh4 Ke6 Bf6 Rc3 f3 Re3 f2 Rd3 Bh8 Rf3 Qg4+ Ke7 f1N Ke8 Qh4 Kf8 Bf6 Ne5 Bh3
1qR2bk1/b2p1b2/1n2QRb1/2K1b3/bQB3P1/1bBN2N1/1B1p3n/3QQ1rr w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Ke2 Kf7 g4 e5 f4 b5 a4 h5 c4 h4 c5 e3 Kd3 h3 f5 h2 a5 e2 c6 e1B c7 b3 a6 e4+ Ke2 b4 f6 e3 Kd3 b2 Kc4 e2 a7 d3 Nh3 d2 Na3 b1B Rg1 h1B Nf4 b3 Kd4 b2 Nc2 Ba2 Nb4 b1B Nh5 Ba6 c8Q Bb3 Qc4+ Bd5 Ng3 Bg6 Nd3 Rh1 Qb4 Ne7 Bb2 Bb5 Ra6 Kg8 Kc5 Nbc6 Rb6 Rb8 a8Q Bdf7 Qaa1 Nd4 Rc6 Ra8 Rc8 B5a4 Rg2 Rg1 Rf2 Nf3 Qac1 Nh2 Qb1 Bh7 g6 Rb8 g7 Bhg6 Bg2 Rb6 Bd5 Rd6 Bc4 Nd5 Rc7 Qb8 Rc8 Nb6 Qbc1 Bd5 f7+ Kh7 Rf6 Bf2+ Bd4 e1B Qb1 Be3 Qa1 Bf4 Bb2 Be5 Qac1 Be7 f8B Bdf7 Qb1 Kg8 Rf3 Kh7 Qdc2 Bc3 Rf4 Bf5 Bb5 Nf1 Bc4 Na8 Nh1 B1h4 Qe1 Bcf6 Qcd1 Bf2+ Rd4 Re6+ Kd5 Bd6 Rf4 Ba7 Ng3 Bc3 Re4 Rh6+ Re6 B5g6 Be7 Bcd4 Bf6 Rhh1 Be5 B4c5 Bed4 Be5 Bdc3 Be8 Rec6 Bf8 Rd6 Nb6+ Kc5 Nh2 g8Q+ Kh6 Qd5 Kh7 Qc6 Bef7 Qd5 Bh6 Rf6 Kg7 Qe6 Kh7 Rc7 Kg8 Rc8+ Bf8+
7K/2B2qQ1/2B1n1nN/bB2br2/2n1p3/BRbbPk2/1Qqp2Nq/1Q2r1R1 w - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 Kf7 Kd3 Kg6 Ke4 Kh5 Kf5 d5+ Ke5 Kg4 b4 h5 f4 a5 c4 g5 f5 d3 b6 a4 b5 d2 c5 h2 b7 d4 b6 h4 c6 a3 f6 a2 c7 h3 f7 d3 Bg2 Na6 b8Q Qd7 b7 Rh5 Qc2 d1N e3 d2 Qa7 Nc5 b8B Nb2 Nf3 Ne6 Rg1 h1Q Qb6 h2 Qh7 Ba6 c8B Bd3 Bd6 Nc4+ Kd5 Bg7 f8Q Bc3 Qfg7 Ba5 Nc3 Qe8 Ne4 Qf7 Rb1 a1B Bb4 Bc3 Nf2+ Kg3 Nh4 g4+ Qf5 Rb8 Bf3+ Qg2 Bc5 h1Q Ba6 Qh2 Qb2 Rb4 Be4 Ra4 Bb6 Ra1 Bb5 Rg5 Rh1 Qf1 Ng2 Qd1 Rg1 Qc2 Qb4 Rh5 Rb3 Rg5 Ba3 Re1 Kc6 Rh5 Kd7 Rg5 Qfg6 Re5 Bec6 Rf5 Ne4+ Kf3 Bc7 g3 Nf6+ Kf2 Ng4+ Ke2 Nh4 g2 Nh6 Kf2 Rh1 g1B Ng2 Ke2 Q6f6 Bf2 Rg1 Bg3 Qfg6 Bge5 Q6h7 Qfh5 Qhg6 Qf3 Ke8 Qd5 Q6f6 Kf3 Kf7 Ke2 Ba4 Kf3 Bcb5 Qd7 Kg6 Qe8+ Kh7 Qf7 Qg6 Nf6+ Kh8 Nh5 Qc5 Nhf4 Qd4 Bcb4 Qb2 Bbc3 Qh5+ Kf2 Qd1 Ng6+ Kh7 Kg3 Qdb1 Kf3 Bc6+ Kf2 Bab5 Kg3 Bd7 Kf3 Bdc6+ Be4 Q1c1 Bed4 Qba1 Nc5 Rh1 e5 Qab2 Ne6 Rg1 Qh5 Be8 Bd3 Bec6+ e4 Qca1 Qh2 Qab1 Qf6 Kg8 Be5 Kh7 Qe7 Kg8 Qf7+ Kh7 Ne7 Kh8 Ng6+
nN4R1/4q1NQ/r2NRbBR/2k1B2n/1n2pP2/1pK4b/1r2QRrq/4q1n1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 Kd2 Kd6 f4 e5 a4 h5 g4 b5 g5 c5 a5 b3 g6 e3+ Kd3 e4+ Kc3 c4 g7 h3 a6 b2 a7 h4 Qd2 e2 Ra2 e1Q Bd3 h2 Be2 h3 Na3 b1R Bh5 Nf6 g8Q Ne8 Bg6 Bg7 Ne2 Qe7 Bb2 Bf6 Qh7 Na6 Ng3 Nb4 Nh5 Rg8 Ng7 Nc7 Ba1 Qh4 Rc2 Rb2 Qe2 Qe1+ Rd2 Rb8 a8R Rb6 Ra6 Na8 Rf1 h1Q Rf2 Rc6 Rb6 h2 Ra6 Kd7 d6 Qg2 Rb6 h1N Ra6 Qgg1 Rh2 Rb6 Rh6 Kc6 d7 Qh2 d8R Ng3 Re8 Nh5 Rd8 Bh4 d5+ Kc5 d6 Bh3 d7 Rd6 Re8 Rb6 d8N Re6 Nc2 Bf6+ Nd4 Rc6 Rb6 Rd6 Rb8 Re6 Nf7 Ra6 Nf5 Rg7 Rb6 Rg8 Re6 Rg7 N7d6 Rg8 Bf7 Rg2 Ng7 Raa2 Qd1 Na6 Rg8 Rb1 Bg6 Ra3+ Kc2 b4 Qf3 c3 Bb2 Raa1 Kb3 c2 Rf2 c1N+ Kc2 Ne2 Nc6 Ng1 Be5 Ra5 Qd3 Ra4 Qd2 b3+ Kc3 Nb4 Nb8 Ra6 Ndf5 Qe2 Nd6 Rb2 Qc2 Qf1 Qe2 Qe1+
nR2B3/r3r1Rr/1n2RB1k/4Kq2/QQ1pNp1N/1nPRb3/b5r1/2q2Bb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 Kf7 b4 Kg7 g4 d5 e4 h5 b6 a5 b7 f3 b5 a4 g5 f4 e5 h3 e6 h2 e7 h4 e8R a3 g6 a2 b6 f2 Be3 h3 Qh5 Bc5 Qe2 Nf6 Nc3 Nfd7 Nd1 Qg5 Nf3 Kh6 g7 Ra7 g8B Rh7 Bg2 f1N Rd8 Nd2 Ne1 Na6 b8Q Re7 b7 Nb6 Rg1 h1Q Nf3 h2 Nf2 Nb3 Bf1 Qf5+ Ne4 Be6 Qd1 Nc7 Rg7 Nca8 Nh4 Bf7 Rc1 a1B c3 Bb2 Ra1 Bc1 Ra6 Bd2 Bf2 Be3 Qd6+ Be6 b8R Qg1 Qc2 h1R Bf7 Rh2 Qa2 Rg2 Be8 Qh1 Qa4 Qg1 Ke2 d3+ Kf3 d2 Bg3 Bcd4 Qdb4 d1R Be1 Qh1 Rd7 Bg1 Bf2 Bc5 Bd4 Rb1 Bf6 Bce3 Rg3 Rh7 Rdg7 d4 Rh3 Re1 Rhg3 Nc4 Rab6 Bd5 Re6 Ncb6 Rh3 Nc5 Rhg3 Ba2 Rh3 Nb3 Rhg3 Qb5 Kg4 Qd3 Kf5 Qc2 Ke5 Qh3 Qc5 Qc1 Qcb4 Qf5+ Kd6 Qg4 Ng5 Bef2 Rd3 Qa3 Ree3 Qc1 Re2 Qf5 Ree7 Re5 Ne4 Rea5 Re5 Re7 Re6 Ra6 Bd7 Be3 Be8 Qg6 Ke5 Raa7 Nd2 Qg4 Ne4 Qf5+
R5n1/1R1n1Bq1/B3N3/1N1brkb1/r2ppPR1/B2qR2K/1rb3Q1/Q2r3q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kf6 f4 h5 Kf2 e5 Kg2 a5 c4 d5 b6 d3 g5+ Kf5 b5 a4 g6 e3 g7 e2 c5 e1R c6 a3 b7 a2 c7 d2 b6 Be6 c8R Nd7 b8R Ra4 b7 Be7 Ba3 Bg5 Ba6 h3+ Kh2 e4 Nc3 h4 Nge2 Rh5 Nb5 Rg1 Rb1 a1Q Ra8 Rf1 Rg1 Rf2+ Rg2 Qb2 Qc1 d1B b8Q Bc2 Rc3 Qa1 Re3 Qc3 Kh1 h2 Rg4 Qf8 Qg1 Qd3 Qa7 Qe7 Qg2 d4 Ng1 Bd5 Nh3 Bd1 Rb4 Rb2 Rb3 Bc2 Rb4 Nh6 g8B Qg7 Bf7 Ng8 Rb3 Rh6 Rb4 Re6 Rb3 Re5 Rb4 Be7 Ng5 Bf6 Ne6 Be7 Qe2 Bg5 Kg2 h3+ Kg3 h1Q Qg2 h2 Kh3 Bb1 Nbc7 Bc2 Rb7 Qc1 Nb5 h1R+ Qh2 Rd1 Qg2 Qcd2 Qb6 Qf2 Qa5 Qg1 Qe1 Rd2 Qb1 Rd1 Qa1 Qh1+
q1rrn2R/Rr1Q4/K2nbN2/3n1B1b/1P1r1b1p/1p3Bq1/N2Q1N2/N4kB1 w - - 0 1 illegal: No proof kernel
3q1q1q/1BBQ4/2Q1b2N/1rb2n2/p1B1PRKb/pnk1rQq1/1n2B3/NR6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kf2 a3 Kg3 d5 c4 Rh3+ Kf4 Ke7 e4 Ke6 b4 a5 c5 f5 b5 g3 b6 g5+ Kf3 a4 b7 f4 c6 g4+ Kg2 Ra5 Nf3 Ne7 Be2 d3 c7 Qe8 Be3 d4 Rf1 Nbc6 b8Q d2 Nh4 d3 Nf5 Rb5 Qb6 Bh6 Bc5 Bg5 Bd6 Nd4 Qc6 Qh5 Nc3 Qh7 Na2 Qh6 Nb4 Nb3 Bf3 Bd7 c8B Qh4 Qe2 d1N Bb7 d2 Nc2 Nb2 Rab1 d1Q Na1 Qd5 Qd2 Bf6 Be2 f3+ Kg1 g2 Bc7+ Qd6 Qd4 Qh5 Kf2 g3+ Ke3 g1B+ Kf4 Qh7 Kg4 g2 Qd2 f2 Qd4 Rf3 h4 Kf7 Bc4+ Be6 Qd1 Qd8 Qdd7 Bg5 Be2 Bd5 e6+ Kf6 h5 Qhg8 h6 Rh3 Rfc1 f1Q h7 Bc5 Rd1 Re3 h8Q+ Qg7 Qh1 g1Q+ Qg2 Qgh8 Nh6 Bh4 Qg3 Qff2 Rf1 Qh2 Qh3 Qd6 Qg3 Nf5 e7 Be6 Bc4 Qe1 Rf4 Ke5 Qf3 Kd4 Be2 Kc3 e8B Bd5 Bh5 Q6f8 Bg6 Bg8 Bf7 Qf2 Bd5 Be6 Bdc4 Qg3+
8/3Kr1Q1/N1N2R1n/1Rqb1bQp/r1B2B1N/4p1Pk/rr2qqRb/1N5n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kf6 b4 Kf5 c4 d5 b6 e5 b7 a5 b5 h5 c5 e3+ Kd3 h3 b6 h2 c6 e4+ Kc2 e2 Kb3 Kg4 Ka4 e3 Kb5 a4 c7 a3 f5 a2 f6 d3 f7 d4 Nh3 d2 Qe1 d1Q Bd2 d3 Bc3 d2 Bf6 Nh6 Rg1 h1B Ng5 Qe7 Nf3 Nd7 Kc6 Nc5 b8N Ne4 b7 Nf2 Bg5 Ra4 Nh4 Bf5 c8R Qb4 Bf4 Bd6 Na6 Re8 b8N Re6 f8Q Qc5+ Kd7 Be5 Bg5 Bh2 g3 Bd5 Qg7 Nh1 Rg2 Kh3 Bf4 Qdc2 Rc6 d1R Qb4 e1Q Qa5 Rd2 Bc4 Qf2 Qd8 Qd3 Qdg5 Qde2 Rb6 Rc2 Nc6 Rb2 Rb5 Qd4 Nc3 Qc5 Rf1 a1R Nb1 R1a2 Bc7 Qg1 Rf4 Qgf2 Be5 Bh7 Rf6 Bf5 Bf4 Re7+
Rn1qqr1k/K6q/1N2N1b1/2rB3p/QRQ2bP1/B5R1/q3rp1b/1R2Bn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 a5 b4 f5 c4 Kf7 e4 Kg7 g4 h3 e5 a4 c5 h2 b6 a3 e6 f3 b7 f2 c6 f4 b5 f3 b6 a2 c7 Nf6 e7 Ra5 e8Q Bf5+ Qe4 Bd6 c8R Bf4 Ba3 Nh5 Qc2 Bg6 Be7 Ng3 Rc3 Rf8 Bg2 f1R Ba3 Qe8 Nh3 Re1 Ng5 Nf1 Ne6+ Kh8 Qa4 Rc5 Nd2 Re2 Nc4 h5 Rb1 a1B Rb4 Bb2 Rg1 h1Q Rcb3 Bc3 Rb1 Qh2 Bh1 Be1 Rg3 Bf2 Bg2 Bg1 Bh1 Qf2 Bg2 Bh2 Bh1 Na6 b8R Qg2 Ra8 Nb8 b7 f2 Nb6 Qh3 Bc1 Qh4 Bd2 Qhd8 Be1 Qde7 Qb5 Qh7 Qc4 Re3+ Kc2 d3+ Kc3 d2+ Kd4 Re2 Bf3 Na6 b8B d1Q+ Qcd3 Qc1 Bd6 Qa3 Qc4 Nb8 Qec2 Qa2 Qa4 Rc6 Qd3 Rc3 Qc4 Rc1 Kc5 d4 Be4 d3 Bd5 d2 Be7 d1Q Bd6 Nc6 Kb5 Qd4 Ka6 Qf6 Bc5 Qfd8 Be7 Nb8+ Ka7 Be5 Rb5 Bc7 Ba3 Rcc2 R5b4 Rc3 Qcb3 Rc5 Qc4 Bf4+
1q6/1Rqk1b2/1B3Q1n/3qQ2p/1p1rQ3/B1r2q1N/K1b1N1Pb/nR2Qn1B w - - 0 1 illegal: Other
2b5/1r1qbrB1/3R4/2BR1NPk/1QbR1n2/pn2r2B/r1qpNK2/2Q1R1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 g4 a5 e4 h5 b4 d5 c4 f5 c5 Kf7 g5 Kg6 e5 a4 e6 d3 c6 d2+ Ke2 f3+ Ke3 f4+ Kf2 d4 c7 h3 e7 h2 e8R h4 b6 h3 b7 d3 b5 Kh5 b6 Nd7 b8R Rh7 b7 Ne7 Ne2 Nc5 Bg2 Nd5 Re4 Qd7 Nec3 Nb3 Nb5 Be7 Rhe1 h1Q N1c3 h2 Ne2 a3 Qc2 d1Q Qc5 Qc2 Rd4 d2 Bb2 Ra6 Bh3 Re6 Nd6 Re3 Qb4 Rg7 Reb1 Qhd1 Ra8 h1R b8B Rf7 Ba7 Re1 Bf1 Qdc1 Bc5 Rh7 Kg1 f2+ Kg2 Rd1 Ra6 f3+ Kg3 Rf7 Nf5 Nf4 Bh3 f1R Rad6 Rh1 R4d5 Rhe1 Bg7 f2+ Kh2 f1B Kg1 Q2b2 Kf2 Qbc2 Ng1 Bfa6 Ne2 Bc4 Rd4 Na5 Qb6 Bd5 Bb4 Qe4 Qa7 Ba6 c8Q Qd3 Qc2 Bdc4 Qb8 Bc8 Qb2 Qdc2 R6d5 Rg1 Bc5 Rh1 Qa2 Rhg1 Rb6 Rde1 Qb1 Rb3 Nc3 Re3 Rbd6 Rb2 Qb3 Ra2 Q1b2 Q1d1 Qa4 Qg4 Ne2 Rb1 Qab3 Qd3 Qd1 Qc2 Qc3 Rb6 Qb4 Nb3 Qb1 Rb8 Qb2 Rb6 Re1 Rb7 Qc1 Qg1+
3r1r1K/2BQ3N/3n1Q2/n4P1B/RB1QNk1q/2b2pp1/2r3bb/1Qrq1qR1 w - - 0 1 illegal: No possible last move, all moves rejected
Qr3B1r/qb2B1b1/1qnKR3/1kNR1p2/R1p3P1/8/q1bnB2N/n3Rb1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 e4 c5 g4 h3 d4 h4 b4 c3 b6 Kc6 b7 a4 d5+ Kb6 d6 c2 b5 h2 d7 f3 Nd2 a3 Nb3 f2 Be2 f1B Bh6 c1Q Nf3 c4 Nc5 Bg7+ Kd6 h3 e5 a2 e6 Qb1 e7 Nc6 b8R+ Bb7 e8R Nf6 Re6 Qb3 Rg1 h1B Nh2 Be4 Qb1 Ka5 b6 Bc2 Qd1 Kb4 Qd5 Qb1 Qh1 Kb5 Rc8 Qb2 Rc7 Qb8 d8B Qa7 Be7 Rab8 Rd7 Qb4 Re1 a1N Rg3 Qb2 Ra3 Qa2 Ra4 Ne4+ Kd5 Bd4 Bhf8 Nd2 Kd6 Bf6 Kc7 Bd4 Rd5 Bg7 Kd6 Ba8 Nf3 h2 b7 Qb6 Qg1 h1Q Nh2 Qf3 Qg2 Qf2 Qh1 Re8 b8Q Bb7 Qa8 Rb8 Rh6 Qd4 Re6 Qa7 Bd1 Qdb2 Be2 Qb4 Bg5 Qba5 Bge7 Q5b6
1Bkq1B2/b2b3R/R3B2r/b1q2p2/pN1Q1BNq/nPr3br/1K3Q2/1N2n3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 c4 d5 Kc2 Kd7 h4 f5 e4 g5 h5 g3 b6 d3+ Kb3 a4+ Ka2 g4 h6 f3 c5 f2 b3 d2 b7 g2 e5 g3 h7 d4 Nh3 g1B Bb2 d3 Qf3 d1R Nd2 g2 Qe3 Bh2 Bc1 g1B Nf4 Bg3 Nb1 d2 Bc4 f1Q Kb2 Qf2 Nd5 Ne7 Qd4 Nbc6 b8B Ra6 Nb4+ Nd5 Rh6 Qh4 e6+ Kd8 Rg6 Na7 c6 Bd7 e7+ Kc8 e8N Ne3 c7 Nc2 Nf6 Nb5 Be6 Ne1 Ng4 Na3 Rh6 Be7 Rf6 Bd8 Rh6 Re8 h8B Rb6 Bf6 Rh8 Be7 Rc6 Rg6 Rc3 Bf8 Rh6 Rf6 Nec2 Ra2 Re1 Rg6 d1Q Bf4 Qe3 Rf6 Qe5 Qf2 Ree3 Ra1 Ne1 Ra2 Kb7 Rg6 Qc5 c8Q+ Ka8 Ra1 Ba5 Qd8 Kb7 Qf6 Kc8 Qd4 Red3 Bc4 Qhe7 Ra6 Qh4 Be6 Rf3 Qh8 Qdd6 Qhd4 Qde7 Ra2 Qd8 Qf1 Rh5 Bc4 Qd6 Qe3 Qhg5 Be6 Rf2+ Ka1 Rfh2 Qd2 Bc5 Qd4 Ba7 Rb2 Rh1 Rh2 Qc5 Kb2 Rh7 Rh6 Rh3 Qff2 Qh4 Rh5 Rf7 Rh8 Rf6 Rh7 Rh6
1RQ2n1r/1KR1q2q/2BN2r1/4pN1b/1QB1n2b/1PnqRr2/p3n3/B4k1B w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 c4 Kg5 f3 Kf4 b6 Kg3 c5 Kf2 g5 h5 f4 d5 f5 a5 f6 e5 b7 d3 Kc3 d2 f7 d4+ Kc4 e3 Kb5 e2 g6 e1R c6 h3 c7 d3 Kb6 a4 b3 h4 g7 a3 Qh5 d1N Nd2 h2 Nc4 a2 Bf4 h3 Nf3 d2 Nh4 Re3 Bg2 Be7 f8Q Nf6 g8B Rf3 Nf5 Nc3 Qhe8 d1Q Bc1 Q1d3 Ncd6 Nfe4 Bb2 Bh4 Rac1 Qe7 Rhe1 h1N Re3 h2 Ba1 Nhg3 Bc4 Nge2 Bh1 Nd7+ Kc6 Rh6 b8R Rg6 Qd8 Ba6 c8B Bb5+ Kc7 Ba4 Rc2 Kf1 Bb7 Bc6 Kc8 Bd5 Qa5 Bf7 Bc6 Be8 Qg8 Nf8 Qb5 Rg2 Qb4 Bh5 Qe6 Rg8 Qd7 Rg6 Kb7 Kg1 Bg2 h1Q Qc7 Qh2 Bh1 Kf1 Qd7 Qf4 Qc7 Qh6 Qd7 Qhh7 Qc7 Nd7 Qc8 Nf8+ Bd7 Rg1 Bb5 Nc1 Qcc4 Nd1 Rc8 Ng6 Qe6 Rgg3 R2c7 Ne2 Bdc6 Ndc3 Bc4 Rg5 Rf8 Rc8 Rf7 Rh8 Rf8 Rg2 Rb8 Nf8 Qc8 Rg6
4r3/r2B2Q1/2RB4/R2qp1N1/Nr3p2/1QPb1bkb/q1Bb1nq1/K3QBn1 w - - 0 1 illegal: No possible last move, all moves rejected
1N5Q/K1b1Q3/n2Rr1k1/4pNB1/B3Pp2/B1n1qb2/2Q2bRQ/rqr3qb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 g5 d4 gxf4 Qd2 c5 Qd1 cxd4 Kd2 d5 Kd3 a5 e4 f5 h4 Kf7 b4 a4 c4 e6 h5 a3 b6 a2 c5 f3 b7 g3 c6 g2 h6 f2 b5 Bc5 b6 Nd7 b8B Kg6 h7 Qg5 b7 Ne7 c7 Re8 Nf3 g1Q h8Q e5 Qd2 Bb6 Na3 f4 Nb5 Q5g3 Nd6 Ra4 Be2 f1B Nf5 Bg2 Rh2 Bh1 Rg2 Ra7 Rb1 a1B Ba3 Bc3 Bd1 Bca5 Ba4 Nc5+ Kc2 Qe3 Rd1 d3+ Kb2 Bd7 c8Q d4 Bc7 Nd5 b8Q Re6 Bd8 Nc3 Qd6 Qg4 Qc2 d2 Bg5 d3 Qe7 Bc7 Qa6 Bab6 N3d4 Qgg3 Nc6 Qg1 Qac8 Q3e3 Qh2 Ra8 Ra1 d1R Nb8 d2 Qch8 Rc1 Rb1 d1Q Ra1 Na6 Kb3 Nc5+ Kc4 Bb5+ Kb4 Be2 Rb1 Bg4 Kc4 Ba7 Rb6 Bf3 Rd6 Bab6 Qe2 Qc2 Kb4 Qa2 Qc2 Qb1+ Kc4 Na2 Kd5 Nc3+ Kc6 Ba5 Bb2 Ne2 Bb3 Be1 Kb5 Ra2 Ba3 Bf2 Kc6 Ra1 Ba4 Nb3 Kb7 Nc5+ Ka8 Nc3 Ka7 Na6+
2B1R1R1/qQQ2n1B/2b3r1/r1B1pnP1/R1q5/1Nq1b2p/1B3q2/bK3knN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 a5 b4 e5 c5 d5 c6 h5 c7 a4 g3 e3 g4+ Ke4 g5 d3+ Kb2 d4 f5 h3 b6 e2 f6 e1Q b7 d2 f7 Ke3 b5 Kf2 b6 h2 Ka2 d3 Qc2 h4 Qb2 h3 Bg2 a3 Nc3 Nc6 b8B Qe7 b7 Nh6 Ba7+ Nd4 b8Q Bb7 c8B Bc6 Qd6 Rg8 Nf3 Rg6 Qb3 d1N Rb1 d2 Bc5 Qa7 Rg1 h1Q Bb2 Qh2 Qc7 Ne3 Ne2 d1Q Qbb7 Qd3 Nd2 Nef5 Nb3 Qec3 Be4 Qdc4 Rg4 Qg2 Ka1 a2 Ng3 Bd6 f8R Nf7 Re8 Qh2 Ba3 Bc5 Nh1+ Ke2 Rd1 Nf3 Rdd8 Be3 Bc5 Ng1 Rg8 Kf1 Rde8 Qf2 Bc2 Q4d3 Ra4 Qcc4 Bc3 Qdd2 Kb2 a1B+ Kb1 Qdd3 Bb2 Qdc3 Bd6 Ng7 Na5 Qad4 Be4 Rf6 Nb3 Ra5 Bb4 Qa7 Bh7 Rg6 Bc5 Nf5
4n2q/nq3B1N/2QN1n1B/1rPbR3/r1R3Q1/kq2p1N1/nRpbb3/5R1K w - - 0 1 illegal: No proof kernel
1bbN4/1r3nK1/Q3r3/2pQBq1N/2qQn1p1/r3nP1R/2k1bRBr/B5Q1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Ke3 Kc5 h4 g5 a4 b5 a5 b3 d4+ Kb4 a6 c5 a7 g3 h5 g4 h6 b2 d6 g2 f3 Nd7 d5 Ndf6 d7 Bd6 h7 Nh6 Ne2 g1R Ra2 Qg8 d8Q Nf7 Ng3 Bb8 Qd4+ Kb3 d6 b4 d7 Kc2 Bg2 b3 Rh3 Rh1 Nd2 Rh2 Ra1 b1R Nc4 b2 Ra2 Qg6 Na5 Qf5 Nb7 Re8 h8B Re6 Ke2 e3 Nh5 e4 Qg8 Nh7 d8Q Nhg5 Q8d7 Qh7 Nd8 Qf5 Ke1 e2 Kf2 e1N Bf4 e3+ Kg3 e2 Kh4 Ne4 Bfe5 Kc1 Qc6 Nc2 Qa6 Ne3 Qg5 Kc2 Bhf6 Nd5 Qge3 e1Q+ Qf2+ Qe2 Qg1 Ne3 Bh8 Bc7 Bhf6 Qc4 Bh8 Rb8 a8Q Ra1 Qad5 Rb7 Bhf6 Bb8 Bg7 Kb3 Bh8 b1B Rf2 Bd3 Bhf6 Be2 Bh8 Nf6 Bg7 Qd3 Bh8 Ra3 Bg7 Nh6 Kg5 Kc2 Bh8 Qe4 Bg7 Qf4+ Kg6 Nf7 Bh8 Qe4+ Kg7 Qf5 Qda1 Ba7 Bd4 Re4 Kf8 Ne8 Bhg7 Ree7 Bge5 Nf6 Kg7 Bb8 Bc3 Ne4 Bcd4 Re6 Bb2 Rc3 Q1a4+ Qb3 Qad4 Qc4 Ba1 Ra3
2b1Qn1r/8/3R2Bq/K1pn2Pr/R1B1qRnb/p4b1N/3B1r1k/2Bb1Q1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 d3 f5 Kd2 h5 Kc3 c5 b6 a5 b5 h3 b7 a4 b6 h2 Na3 h4 Qf3 h3 Ra2 Be7 Bd2 Rh5 Nc2 Nf6 Nb4 Nbd7 b8Q+ Qc7 b7 Nd5+ Kb2 c3+ Ka3 c2 Ra1 Bh4 g5 c1N Qe2 f3 d4+ Ke6 e5 f2 Qe1 f4 Bc4 Kf5 e6 Kg4 e7 Kg3 e8B f3 Bg6 Qf4 Nd3 Nf8 Qf1 Qe5 Ra2 Qf4 Qe5 Rb8 Qe8 Qe4 Qe1 Ra8 b8B+ Kg2 Bbf4 f1B Ra1 Be2 Nf2 Nd3 Bc1 Bd1 Bfd2 Kg3 Qf1 Ne5 Ra2 Ng4 Ra1 Nb4 d5 Rb8 d6 Nd5 d7 Ra8 Nd3 f2 d8R Rb8 Rd6 Ra8 Qe2 f1R Qe1+ Rf2 Qf1 Rh7 Nf4 Rh5 Nge2+ Kf3 Rg1 h1B Ng3 h2 Nh3 Bg2 Ra2 h1Q Ra1 Qh2 Nh1 Qhe5 Rb1 Qg7 Rb4 Qh7 Ka2 a3 Ra4 Be2 Kb3 Qh6 Rb4 Rb8 Ka4 Bd1+ Ka5 Nf4 Ng3 Nd5 Ra4 Bh1 Qe1 Bg2 Rf1 Bh1 Qe2+ Kg2 Qf3+ Kh2 Qe2 Rg2 Rf4 Rf2 Qf1 Bhf3 Nh1 Rb7 Rc6 Rh7 Rd6 Rh8
1bRBBNN1/B1rn2r1/3bQ3/1PN2n2/6p1/2pb1q2/qQ2q2k/2KNnR1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 d4 g5 Kd2 c5 h4 a5 d5 Ke5 h5 f5 b6 g3 h6 f3 b5 Kf4 e5 f2 e6 g4 b7 a4 d6 g2 d7 Kg3 h7 f4 e7 c3+ Kc2 c4 e8N f3 Nh3 g1B Nd6 a3 Qd2 a2 Nf4 Nh6 Rh5 Nf5 Rg5 Ra7 Bd3 f1B Nd5 f2 Rg8 Qe8 d8B Kh2 Ne7 Nd7 b8N Bb7 Qe2 Bh1 Qe6 Rc7 Be3 Qf7 Kc1 c2 Be4 Bd3 Nc3 f1Q+ Nd1 Qe2 Ba7 Bf2 Bd5 Bg3 Bc6 Qf6 Rb1 a1Q Nb7 Qa2 Nc5 Bd6 Ra1 Bg7 Re8 Rg8 h8Q+ Bh6+ Qe3 Qf7 Qb2 Rg7 Ng8 Bhf4 Rf8 Bg3 Re8 Qd5 Qe6 Qdf3 Rf8 Ne5 Be8 Nd7 Rb1 Qa5 Bf6 Qfe4 Ne3 Q4f3 Bh5 Bdf4 Rc8 Rb7 Be8 Qa2 Bd8 Nb6 Nbd7 Bb8 Nf8 Bgd6 Ra1 Nd7 Rb1 Qef1+ Kd2 Q1e2+ Kc3 Rc7 Re1 c1N Rd1 Bc2 Rf1 Nd3 Nd1 Ne1+ Ne3 Qe4 Nd1 Q2f3+ Kd2 c3+ Kc1 Qee2 Ne3 Bb1 Nd1 Bd3
1R2R1Q1/4r2B/1rQq3R/NpR5/3rn3/2Pb1k2/1bNQ1Bpq/3bKnqb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 a4 Kf7 h4 Kf6 f4 b5 c3 d5 a5 e5 h5 g5 a6 b3 a7 e4 h6 d3 h7 d2+ Ke2 b2 Rh2 d4 Ra5 g3 Rf2 g4 Bg2 e3 Bh3 d3+ Kf1 e2+ Kg2 e1R Qc2 d1Q Ne2 d2 Nd4 Qc7 Nb3 Ne7 Na3 b1B Ra6+ Re6 Qa2 Nd7 Na5 Rb8 a8Q Nd5 Re2 Bc5 Rc6 Rd8 h8R Rb6 Re5 Bb4 Rc5 Bb7 Rh7 Qc2 Kf1 d1B Ke1 Qh2 Be3 Bd3 Bf2 Ne3 Qd2 Nf1 Nc2 Bh1 Qc6 Ba3 Rh4 Bb2 Rh6+ Kf7 Bg2 Nf6 Be4 Ree8 Re6 Rd4 Ree5 Qd6 Re6 Nh7 f6 Ng5 Ree5 Re6 Bh7 Re8 Re2 Re5 Re3 Ke6 f7+ Bg6 Rh4 Bd3 f5+ Kf6 Rh5 Re8 Re7 Ne4 Rb7 Re7 f8R+ Rf7 Re8 Re7 Rc4 Ke5 f6+ Ng5 Rh6 Ne4 Ne3 Kf4 f7 Kf3 Nc2 g2 Rbb8 g1Q Rc5 g3 f8Q+ Kg2 Qh8 Kf3 Qg8 g2
q2Q2qq/1n3nb1/K1NbQ2r/1p1B2R1/P1R1qnp1/rR1Nkb2/8/BN5N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Ke7 Kd2 Kd6 Kd3 c5 Kc4 g5 Kb5 f5 h4 f3 e4 f4 a3 g3 h5 c4 h6 g2 h7 g4 Nh3 g1B Qa4 b3 Rh2 c3 Rd2 f2 Qc4 f3 Rb2 c2 Bg2 f1Q Nf2 Nh6 Nh1 f2 Bf3 Na6 e5+ Kd7 d6 Qg2 d5 f1Q Be3 c1N Bd4 Nf7 Raa2 Bg7 e6+ Ke8 e7 Kd7 e8R Nc5 Re5 Ne2 Be4 Nf4 Rg5 Qg8 Rc2 b6 Ba1 Nb7 Rab2 Bh2 Qe2 Qff3 Rc4 Qc3 Bf3 Rb8 Ka6 b5 Rc2 Qe5 R2c3 b2 Rb3 Qd4 Nd2 b1Q Qe6+ Kd8 d7 Qbe4 Nb1 Qf6 Ra4 Kc7 d6+ Kc6 d8Q Qe5 d7+ Kc5 Be2 Qgf3 Bc4 Bg3 Bd5 Qec3 Ra5 Kd4 Ra4+ Ke3 Rc4 Qg2 Qde8 Bh2 d8N Bd7 Nc6 Ra8+ Na7 Bc6 a4 Rd8 Q6e7 Rd6 Q8d8 Rh6 Qed7 Nh3 Q7e8 Bd6 Qe6 Nf4 Rf5 Qe8 Rg5 Rf8 h8N Qa2 Qdf6 Qa8 Ng6 Rfh8 Qd8 Rh3 Ne5 R8h6 Nd3 Qf6 Qh8 Qfd8 Qh7 Qh8 Qg8 Rh2 Qee8 Bc3 Be6 Qg6 Ra3 Qg2 Qgf8 Qgg8 Rb3 Bg7 Qfe7 Qd5 Q8d8 Ra2 Qf6 Qd4 Qe5+ Be4 Bd5 Ra3 Qe6 Qe5 Qee8 Bf3 Qe6 Qb8 Nc6 Qe4 Rbb4 Qc8 Rb3 Qa8+
NK2N1bB/1Qnn3b/1q3Q1p/1kr3RP/1BqBrnb1/3p4/r2Q4/1r2RB2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 f4 fxe4 g3 e6 f5 Bd6 Nh3 Qf6 Ng1 Bf4 gxf4 Qd8 Kf2 b5 Kg3 d5 a4 Kd7 c4 Kc6 h4 g5 a5 e3 h5 g4 c5 e5 a6 e2 a7 e1R f6 e4 f7 h6 f8B d3 f5 b3 Kf4 e3 Ke5 e2 f6 b4 f7 g3 Rh3 d2 Nc3 d4 Ne4 g2 Nf3 g1Q Bg7 b2 f8B b1R Rg3 b3 Nd6 b2 Rg5 Bg4 Ne8 Kb5 c6 Qc8 c7 Nf6 Kd6+ Nd5 Ne5 Nd7 Nc4 Rg8 Qc2 d1B Qd2 Bb3 Nb6 Qa6 c8Q Ba2 Rg6 Nc7 Qd8 Qa4 Bh8 Qc4 Be7 Rf8 Rg7 Rf5 Rg5 Rc5 Bef6 Rd1 Bfg7 e1N Qf6 Nd3 Bf8 Nf4 Bfg7 Rc8 a8Q Re1 Qb7 Ra8 Bf8 Ra4 Be7 Re4 Na8+ Nb6 Qf2 Bb3 Be3 Ra2 Qe2 Rd1 Qh2 b1B Qd2 Bd3 Bf2 Rb1 Bf8 Qc2 Be3 Bg8 Bf2 Qc4 Be3 Rbb2 Re1 Rb1 Bf2 Re2 Be7 Bdh7 Bf8 d3 Bd4 Re7 Qe3 Rf5 Bc3 Na6 Qd2 Re4 Bb4 Nb8 Bc5 Nd7 Kc7 Qgd4 Kd8 Qd6 Bd4 Qde6 Bb4 Rc5 Qc7 Nbd5 Kc8 Qd6 Kb7 Qe6 Qb8 Nc7 Kc8+ Qb6 Qb7 Nf8+ Kb8 Nd7+
2k1b1KR/3n1rn1/2NBB2p/q2r1Pn1/QNQ1Rb1b/1p6/3Q2R1/qqq4R w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 c5 Kf4 b5 Kg5 h3 a4 e3 d4 c4 g4 e2 f4 e1Q d6 h6+ Kg6 e5 Kf7 b3 f5 b4 d5 h2 g5 c3 g6 e4 g7 e3 a5 b2 a6 e2 a7 b3 Ra2 c2 Na3 b1N Bf4 c1B Qd2 Rh7 Nc2 Nf6 Nb4 Nc3 Nf3 Be7 Nd4 Ne8 Kg8 Ne4 Ndc6 Ng5 Ra4 Qd1 Qd4 e1Q Qc4 Ba6 Be5 Kc8 d7+ Kb7 d6 Bb5 Bf4 Qa5 d8R Nd7 Bg2 Qd3 Bd5 Qb1 Be6 Qc3 Bg3 Bf4 Rc8 Qcc1 Rd8 Nb6 d7 Rc8 a8Q+ Kc7 Re1 h1Q Re4 Qhf1 Ra2 Qa1 Rg2 Qcb1 Rg1 Qfc1 Qa6 Ba4 Qab5 Kb7 Rh1 Rc7 Ra8 Bf6 d8Q Rf7 Qd2 Rd7 Kf8 Rd5 g8R Ng7 Rh8 Kc7 Kg8 Nd7 Rf8 Bd8 Rf6 Kc8 Rg6 Nf7 Bh2 Bh4 Rg2 Ng5 Bg3 Ne8 Bh2 Rf7 Bg3 Ng7 Bh2 Be3 Bc7 Bf4 Bd6 Qc7 Qa5 Bb5 Qaa2 Qa5 Qa4 Rd3 Bd5 Nc5 Nd8 Be8 Ndc6 Nd7 Be6 Rd5
3R3Q/1KN4b/2N1qr1p/b1P2n2/6Qq/R2pn2r/bknQn2R/1B1R1rB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 Kb4 Kd5 a5 e4 f5 g4 f3 g5 f4 b6 d3 e5 h3 b3 a4 g6 a3 b7 a2 g7 f2 e6 f3 e7 d2 e8Q h2 Bg2 f1B Qe6 f2 Bf3 Nh6 g8R Qh4 Ne2 Nc6 Rgg1 Nf5 Nbc3 Ra6 Be4 Ncd4 b8R+ Rb6 Qc2 d1N Be3 Ka3 Qd2 Bb4 c5 Ba5 b4 d6 Bc2 Kb2 b5 Bg2+ Qe4 f1R Bb1+ Nc2 Nd4 Rc6 Kc4 Be6+ Nd5 Bf7 Qf4 Be4 b6 Nc3 b7 Ne2 Kb5 Qe1 Nf6 d5 Ne8 Rf6 Nc6 d4 Ka6 d3 Rd8 Bg8 Rg2 Be6 Rhg1 h1Q Nc7 Qhh4 b8Q+ Bb3 Kb7 Bbd5 Qd1 Bb3 Bf2 Nce3 Qg4 Bg8 Rh2 Bed5 Bc2 Bdf7 Qd2 Bb3 Rd1 a1N Rgg2 Ba2 Bb1+ Nac2 Qc8 h6 Qb8 Bh7 Bg1 Re8 Rf2 Ref8 Rf4 Re8 Ra4 Rg8 Ra3 Rgg6 Qg2 Rg3 Qc8 Rh3 Qg8 Qg4 Qh8 Qeh4 Qe6 Qg8 Qc4 Qe8 Qg4 Qe6
r1r1B2b/2nq2q1/3n2pQ/BQB1N3/Rr3Nbp/2Qn2k1/1P3Rb1/3n1KQ1 w - - 0 1 illegal: No possible last move, all moves rejected
1KrqnR2/Q1B3Qb/B1rQ1Bp1/N2R3q/2bQpq2/r7/knq1NP2/b7 w - - 0 1 illegal: No possible last move
2q2n1B/B1Q2RN1/krBb1pr1/1q6/2B1q1NR/1Kp2nQ1/2R3nP/b4bq1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 d4 Kd7 Kd2 a5 Kc3 g5 b4 c5 e4 Kc7 e5 Kb6 d5 a4 d6 f6 e6 f3 e7 g3 e8B f2 d7 g2 Kc2 c3 Nf3 g1Q Bd3 f1Q Nbd2 g4 Nh4 g3 Ndf3 c4 Ne5 g2 Qf3 a3 Bh6 a2 Ng4 Ne7 Bg7 Nf5 Qg3 Rh6 Bh8 Qe7 d8R Qe4 Rd4 Ba6 Bc6 Rg6 Rd7 Bc5 Rf7 Nd7 Re1 a1B Re2 Qe8 Re4 Nf8 Rd4 Rb8 Re4 Ne7 Nf5 Nd5 Ng7 Nf4 Rd4 Rb7 Be2 Qe4+ Bd3 Ka7 b6+ Ka8 b5 Bb4 Bd7 Rb8 b7+ Ka7 Bc6 Kb6 Rd5 Ka5 b6+ Bb5 Rh5 Ka6 Rh3 N8e6 Qe1 Nf8 Rh4 Qfe2+ Kb1 c2+ Ka2 Qef1 Qg3 c1Q Be2 c3 Bc4 Qd2+ Kb3 Qd7 Re7 Qc8 Rf7 Ra8 b8B Ra7 Nh6 Rb7 Ng4 Qfd3 Ba7 Qdd7 Be6 Bf1 Bed5 Rb8 b7 Qdf5 Bc4+ Qb5 Bb6 Qgd4 Bc5 g1N Ba7 Nf3 Rg1 Qde3 Rg2 Qg1 Rc2 Ng2 Bd4 Ra8 b8Q Ra7 Be3 Rb7 Ba7 Rb6 Qbc7 Bd6+
1q3bB1/2Bnrr2/n1B1npN1/5k2/PpK2N2/1r2q1Qn/1R1QB2b/Rb2Q3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kf6 Kd3 h5 g4 c5 a4 b5 e4 c4+ Ke2 b3 d6 f3+ Ke3 b4 d7 f2 d5 c3 Kd3 h3 d6 h2 Qc2 h4 Kc4 b2 Bh6 h3 Qd1 c2 Qe2 c1B Nc3 b1N Be3 Ra7 Qe1 Na6 Be2 f1R Bb6 Bf4 g5+ Ke6 e5 Nf6 g6 Kf5 Nd5 Nc3 g7 Nb5 g8B Nd4 Ba5 Ne6 Bc7 Rh7 Qg3 Rb1 Nf3 Rb3 Rhb1 h1N Rb2 h2 Qe1 Qe8 d8Q Nf2 d7 h1Q Qe7 Qh4 d8Q Qg5 Qed6 Bh2 Nf4 Nh3 Qdd2 Bb7 Q8d3+ Be4 Qd6 Bb1 Nh4+ Ke4 Nhg6 Qb8 Qdd1 Kf5 Qd1d2 Nd4 e6 Nd7 e7 f6 e8B Rf7 Qf2 Ne6 Qfe1 Ndc5 Bc6 Nd7 Ng2 Rb7 Qdg3 Qe3 N2f4 Ndc5 Bb6 Rbe7 Bc7 Nd7
2q2kr1/N1K3R1/2n2pb1/2R1B2P/Q2n1Q1R/nRQNrB2/2p1rq2/bnb5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 e4 a5 b4 c5 d4 f3 Ke3 a4 h4 f6 b6 f2 d5 c3 d6 c4 Kd4 g3 Kc5 a3 b5 g4 b7 a2 e5 c2 h5 g2 b6 g3 e6 c3 e7 Bd7 Rh4 Nh6 Be2 f1N Nf3 g1Q+ Qd4 g2 Bf4 c1B Na3 Nd2 Ne5 Nb1 Nd3 Nf5 Nb5 Rg8 Na7 Nc6 b8Q Qf2 b7 g1R Bf3 Re1 Be5 Qc8 Kb6 Re2 Qc7 Re3 Qf4 Nfd4 b8R Bf5 d7+ Kf7 d8Q Bg6 e8R+ Be7 Qcd7 Bb2 Qdg4 Bea3 Re6 Kg7 Qc7+ Kf8 Re7 Bc1 Rg7 Bab2 Nb5 Ra3 Na7 Re2 Rb7 Nd2 Rb1 Ba1 Rb5 Nb1 Qgd7 c2 Rd5 Nb5+ Rc5 Rc3 Qdd4 N5a3 Qa4 Rb3+ Nb4 Rbe3 Nd3 Bd4 Rb8 a1N Rb7 Nb3 Rb8 Qe8 Qc8 Bdb2 Kc7 Nbd4 Rb3 Ba1 Qh3 Qa8 Qhg3 Qg2 Qe1 Qf2 Qc3 Qc8+
3B2q1/2b1N2R/2RB1prb/npK4N/B4P1b/6nn/3rqQQq/k2qR2R w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 h5 e4 hxg4 Bb2 d5 Bh3 d3 Bf1 d4 Ba3 Be6 Bc1 Bd5 exd5 Rh4 Qf3 Rh3 Qd1 Rh8 Kd2 Kd7 c4 Kd6 a4 Ke5 h4 b5 f3 g5 a5 f6 a6 b3 h5 b2 d6 g3 a7 g4 h6 g2 h7 g3 c5 Nc6 d7 Bh6+ Ke1 d2+ Ke2 Na5 Nh3 g1N+ Kd3 g2 Na3 b1Q+ Qc2 d1Q+ Bd2 Qa2 Nf4 Nh3 c6 g1B c7 Bh2 Qb2 Qe2+ Kc2 e6 c8R Ne7 Re1 Qg8 d8B Nf5 Nb1 Ng3 Nh5 Kd5 Rc3 e5 Rc6 d3+ Kc3 e4 Kb4 e3 Nc3+ Kd4 Bg2 Rb8 a8Q Rb7 Bc1 d2 Nd5+ Kd3 Kc5 d1Q Ne7 Rd7 Qd4+ Kc2 Ba3 Kb1 Qd2 Ka1 f4 Bg1 Qc2 Rd2 Bd5 Qh2 Bb3 e2+ Kb4 Bf2 Ba4 Bb6 Qa7 Bc7 Qf2 Qb2+ Kc5 Qba2 Qe4 Qae6 Qeg2 Qe4 Ref1 e1B Bb4 Qee2 Ba3 Qf8 Bb4 Rg8 h8R Rg6 Rh7 Qe8 Qe3 Bf2 Re1 Nf5 Ba3 Bh4 Qef2 Ng3 Bb2+ Kb1 Be5 Qg8 Bd6 Ka1
2nnb2B/Nqr1q3/1NQ1Pb2/k1NBK3/bqB1pQr1/3B1R2/1r5p/3Rq3 w - - 0 1 illegal: No proof kernel
n5Qn/1RQ4r/1R2P1pn/1qb3bN/b4KB1/1prq3q/3kNN2/QQ4Bq w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 e4 Ke5 h4 Kd4 h5 b5 d6 f5 a5 c5 a6 c4 e5 g3+ Kf3 c3 h6 g2 a7 g6 e6 c2 h7 b3 d3 b2 d7 b4 Nh3 g1N+ Kf2 b3 Ra6 f3 Kg3 f2 Rh2 Nh6 Rb6 Bc5 Nc3 b1Q Kf4 Na6 Be2 f1Q+ Nf2 Nc7 Bg4 Qh3 Rh1 Qdh4 d8Q+ Bd7 Qg8 Rc8 a8N Nf3 Rf1 Ba4 Ne2+ Kd5 d4 Kc4 d5 Ne5 d6 Nef7 Be3 c1B d7 Qd3 d8Q Qh1 Ng3 Kc3 Nh5 Q4h3 Qd6 Bd2 Qb1 Qb5 Rd1 Qd3 Rb7 Bc1 Nb6 Na8 Qd7 Qb5 Rd6 Rc7 Qb8 Rhc8 Qe8 Nh8 Qg8 Rg7 Qc7 Qd3 Ke5 f4 Rc6 f3 Kf4 Bb2 Bd4+ Kd2 Nd5 Bc1 Nc3 Rd7 Rcb6 Re7 Nfd1 f2 Ne2 f1Q+ Nf2 Qb5 Neg3 Qfd3 Ne2 N8f7 h8Q Rd7 Qhe5 Nh8 Nd1 Rh7 Bg1 Rd8 Nf2 Rd4+ Kg5 Rc4 Qea1 Rc3 Kf4 Be7 Neg3 Bca3 Ne2 Bac5 Qg7 Bd8 Qg8 Bg5+
3k1bq1/2nbb1B1/1q2pnK1/1rr4R/R2RpQB1/NPN4n/N2Q1b1r/2R5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 f4 d5 c4 g5 h4 e6 b3 g3 b6 g4 h5 g2 b7 a4 f5 g3 f6 d3+ Ke3 d4+ Kf4 d2 Kg5 d3 c5 a3 c6 a2 h6 Bg7 h7 Ra5+ Kg6 Na6 b8N Nc7 Rh5 Bd7 Na6 Bf8 Nb4 Rc5 Ne2 g1N Bb2 g2 Na3 Nh3 Nc3 g1B Be2 Bf2 f7+ Ke7 Qc2 d1R Bg4 Nf6 Qd2 Rb5 Rd5 Rc1 Rd4 Rc2 Rc1 a1B Nba2 Qb8 Ra4 Kd8 Rd4 Be7 Ra4 Qb6 f8Q+ Nfe8 Qff4 Nf6 Ncb1 Rcc5 Nbc3 Rf8 h8R Re8 Rh7 Rh8 Rh5 Bf8 Qde3 d2 Qe1 d1Q Qed2 Qg1 Rd1 Ncd5 c7+ Ke7 c8R Nc7 Rca8 Qg2 R8a5 Kd8 Rd4 Qd6 Rc4 Bg1 Ne2 Nf2 Rdc1 Nfd5 Rg5 Qh3 Kf7 Qb6 Bh5 Qg2 Raa4 Qg3 Bf3 Rh2 Rh5 Nh3 Rcb4 Qg5 Bg4 Bf2 Bh8 Be5 Rd4 Bf6 Nec3 B6e7 Bf6 Qh6 Bh8 Qh7+ Bg7 Qg8+ Kg6 Nf6
1q2qNkb/Q3b1B1/rR2p2Q/1nr1rr1b/np1N3K/5BP1/1n6/N1NQ3R w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 f4 h5 Kf2 c5 a4 b5 f5 c4 d6 h3 Kg3 h2 a5 e3 d5 c3 d7 c2 d6 b3 f6 b2 a6 h4+ Kh3 e2 a7 e1N g3 Nd3 Be3 c1B Bf2 Rh5 Bd4 Nh6 Qa4 Nf5 Bc5 Na6 Ra2 Nd4 Qa3 Rf5 Be2 Kg8 Bf3 Qe8 Nd2 b1Q d8Q Nb2 d7 e6 Bb6 Nc5 Nb3 Nca4 Na1 Bb7 Qe3 Be7 Ne2 Ba6 Kg4 h3 Qh6 Rc8 a8Q Rcc5 Ba5 Bd2 Nc1 Bc3 Kh4 Rce5 Rd1 h1R Qa7 h2 Bc7 Rc5 Be5 Re1 Ra3 Bb7 Rb3 Re2 Rh1 Be4 Bg2 Bf3 Rb4 Bh5 Bf3 Bg6 Qc8 Re1 d8N Bh5 Qcd7 Re4+ Bf4 Ree5 Nc6 Qa2 Qd8 Qd5 Bg5 Qd6 Qdd7 Qdb8 Qd6 Nc2 Qd1 Na3 Bd2 Kf7 Nd4 Kg8 Rc4 b4 Bf4 Rb5 Rc6 Rbc5 Rd6 Nb5 Rb6 Red5 Be5 Rd6 Rb7 Ra6 Rb6 Rd5 Nc6 Bd2 Re1 Bf4 Nd4 Rc5 Re2 h1R+ Rh2 Re1 Rh1 Bf8 Bd6 Bg7 Bf8 Bh8 Bg7 Bc7 Qhd2 Ree5 f7+ Kh7 f8N+ Kg8 Qg5 Bd6 Qh6 Be7+
2K3BQ/1b2r1bQ/QN1qp3/1qR5/P2q1RRb/2R1p3/3r2rn/Bb3Nnk w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 a4 h5 d4 b5 g4 e3 f3 b3 d6 h3 d7 h2 d5 b2 d6 h4 Ne2 h3 Nd2 b1Q Qe1 b4 Ng3 b3 Ba6 b2 Qf1 Ra7 Qe2 Bg7 Ngf1 Nc6 Bc4 Nd4 Ra3 Nh6 Bg8 Bb7 Rg1 h1Q Nc4 h2 Nb6 e6 Rb3 c4 g5+ Kg6 Rg4 Kh5 g6 c3 Bd2 c2 Rc3 c1B Qa6 Qg1 Be1 h1R Bg3 Qe7 d8R Rh2 d7 Rg2 Rdc8 Bd2 d8Q Be1 Bh2 Qd7 R8c5+ Qd5 Qe8 Bh4 Bg3 Qh2 Qb8 Bf8 g7 Qd3 Qd8 b1B Qe7 Qb5 Qd8 Ndf5 Qe7 Qdd7 Ke5 Nd4 f4 Ne2 f5 Ng1 f6 Qdd3 f7 Rh7 Nd5 Qd4+ Kd6 Rd2 Rf4 Ng4 Kc7 Rh6 Be1 Rg6 Nb6+ Rg5 Qd7 Qg3 Kd8 Nh2 Rg4 Qgf4 Bg3 Qfd6 Be5 Ba8 Rf4 Rgg2+ Kc8 Kg5 Qdb7 Kh5 Qe4 Re7 Qh7+ Kg5 Rf3 Kg4 Rf4+ Kh3 Rg4 Rgf2 Rf4 Kg2 Bf6 Kh1 Rg4 Rd7 Rf4 Be7 f8Q Rg2 Qe8 Ra7 Qeh5 Bd8 Qh8 Rb7 Q5h7 Re7 Rc1 Q4e5 Bf7 Ra7 g8R Qeb2 Be5 Bdf6 Rgg4 Re7 Bg8 Bg7 R1c2 Q2b4 Ba1 Qbd4 R2c3 Bb7+
1BK4Q/2N5/qNR1pb2/NBpn1qnb/4n1r1/rP3R1Q/3Nq3/1bk2n1Q w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 c5 g4 h5 g5 a5 f3 a4 b3 a3 g6 c3 g7 e3 b6 h3 b7 h2 Qe2 h4 Kg5 h3 f4 Ke4 f5 c2 d5 a2 f6 Qd7 f7 Nc6 b8N Nf6 g8Q Nb4 d6 Nbd5 Qe1 e2 Qg7 Kd3 Na3 Rh4 Qh6 Bg7 Bf4 c1Q f8N Qd2 Ne6 Ne4+ Kf5 Bf6 Nc4 Kc2 Na5 Rg4 Nf3 Qd3 Rd1 a1Q Nd2 Qa6 Qeh4 e1N Bb5 Qa2 Rf1 h1N Rf3 h2 Qh3 Bb7 Ra1 Qb2 Ra4 Kc1 Be5 Qc8 d7 Bc6 d8Q Be8 Qh7 Bh5 Nd7 Qa2 Bd6 Qc2 Nc7 Nhg3+ Ke6 h1B Rb4 Nf1 Qdh8 Qc4 Ra4 Qe2 Rd4 Qf8 Nb6 Ra7 Kd7 e6 Nb7 Qf7+ Kc8 Qg6 Bf4 Qf5 Rb4 Nd3 Qh6 Ndf2 Bg3 Ng5 Q6h7 Qa1 Na5 Nfe4 Rd4 Nf4 Rd6 Nd5 Rc6 Qa4 Bd6 Qac4 Nb7 Ra3 Na5 Qcd3 Nca8 Qc4 Bb8 Qcd3 Qb7 Bg2 Nc7 Bh1 Ba4 Qa6 Bb5 Nde3 Rf4 Nc3 Rd6 Be4 Rf2 Bb1 Rf4 Qa8 Qbh1 Nce4 Rf3 Nd5 Rc6 Qa6+
Rq1B1Q2/1rn2b1k/2b1pb1N/B1pq3q/BBRqN3/1Pn2Q2/7K/n2rR3 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kf7 f4 Kg6 Kf2 h5 g4 a5 Kg2 c5 b3 h3+ Kg3 e3 g5 a4 f5+ Kh7 d5 c3 b6 h4+ Kh2 a3 d6 c2 d7 a2 f6 e2 b7 e1Q f7 Qd2+ Qe2 Qd4 Qe1 Bg7 f8Q Nf6 Qa5 Na6 b8B Ra7 Nd2 Ne4 Ba3 c1Q Ngf3 Nc7 Qc3 Bf6 Bb5 Qd1 Ba4 Rb7 Rc1 a1N Ne5 Qh5 Qf3 Nc3 Bb4 Qde8 d8B Be6 Rhf1 Bf7 Ne4 e6 Rfe1 Rg8 Ng4 Qb5 Kh1 h2 Nh6 Rh8 Kg2 h1B+ Kh2 h3 Ba7 Bg2 Bb6 Bh1 B6a5 Bg2 Kg3 h2 Rc2 h1Q Rcc1 Rg8 g6+ Kh8 g7+ Kh7 Rc2 Qhd5 Rcc1 Qhh5 Rc2 Rh8 g8R Qb6 Rg4 Qa7 Ra2 Qb8 Rh4 Bf1 Kh2 Bb5 Rc2 Bc6 Rcc1 Na2 Rc4 Nc3 Rh3 Rg8 Rh4 Rg1 Rh3 Bh4 Rg3 Rf1 Rg8 Bf6+ Kg2 Qg6+ Kh2 Bg5 Bf6 Nd1 Qe8 Qa8 Re3 Nc3 Rf8 Rb1 Re1 Rd1 Qe7 Qa7 Ra8 Qb8 Qf8 Qgf5 Be7 Bf6 Bd8 Qh5+
3NB1QK/3Rq3/1n2p1p1/1b1rNnB1/Q1B2NPb/1n2k3/b5q1/N1R1b1rr w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Qd3 h5 Qf3 h4 Qg3 hxg3 Ke2 Kf7 h4 Kg6 f4 d5 c4 a5 b4 e6 b6 e3 Kd3 a4 b5 e2 h5+ Kh6 f5+ Qg5 c5 e1Q c6 g6 f6 g2 b7 a3 c7 a2 f7 Qd1+ Nd2 Bd7 c8B Qh4 b6 Kg5 h6 Kf4 h7 Bb4 f8N Ra5 Be2 Bc6 Nd7 Qf1 Ne5 Qe7 Bd7 Nh6 Be8 Nd7 b8Q Nf5 b7 Nb6 Nb3+ Bd2 Rb1 a1N Qa7 Ba4 b8N Bb5+ Nc4 Qf2 Nc6 Qf1 Nd8 Qf2 Nf3 g1B Nh4 Qg2 Qd7 Bge3 Rd1 Be1 Rd2 B3f2 Qa7 Rg8 h8Q Rg7 Qg8 Rh7 Nf3 Rh6 Ng5 Rh1 Bf1 Bh4 Nh3+ Kf3 Rd1 Rg1 Bg5 Rh1 Nf4 Kf2 Nd2 Nb3 Rbc1 Ra1 Qa4 Rb1 Kc2 d3+ Kc3 Ra1 Ne5 Ke3 Be2 d4+ Kb2 Nc5 Nb3 d2 Bc4 d3 Kc3 Rb1 Na1 Nb3 Rc2 Beg3 Rdc1 d1B Rf2 d2 Rf3+ Ke4 Rd3 Be1 Rd7 Ke3 Nf3 Kf2 Kd3 Be2+ Ke4 d1R Ke5 Rd6 Nh2 Ke3 Nf3 Qh7 Kf6 Rd5 Ne5 Bd3 Rc2 Rd1 Rc1 Bb1 Rd6 Qb7 Rd7 Ba2 Kf7 Nfd4 Kg7 Nf5+ Kh8 Qc7 Rd6 Qe7 Rd7 Bef2 Nf3 Rdg1 Ne5 Be1
nN1r2q1/qBr4b/N1BPNpR1/1b1p2Q1/3n1RrQ/b6n/2bk1KNB/8 w - - 0 1 illegal: No proof kernel
n2B1B2/2nRq3/1qQpN2r/r1b1p3/3qn3/RN1qQb1B/P1k4B/b3Q2K w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 Kf7 c4 Kf6 f4 e5 Kf2 b5 Kg2 g5 h5 d3 h6 d2 c5 g3 h7 b3 c6 b4 c7 b2 Bc4 b3 Qe2 d1N Qe1 g4 Ne2 Qe7 Be6 Nc3 Nd4 Nd5 Nc2 Nb6 Ne3 Na6 Nd2 b1Q Rh3 b2 Kh1 Bb7+ Ng2 Bf3 c8Q Nc7 Nb3 Ra5 Be3 Qd1 Bg1 b1Q Bh2 Qbd3 Rb1 Q1d2 Rd1 Nba8 Qa6 Qdb4 Qc6 Qbd4 Rd2 Qe8 Qe3 Bc5 Qe1 Qe7 Qe3 Kg7 f6+ Kg6 f7 Nf6 f8B Ne4 f5+ Kf6 Qe1 Kg5 f6 d6 f7 Kg6 Rf2 Kf6 Bg7+ Kg5 f8B Kg6 Kg1 Kg5 Nf4 g2 Bc4 Kf5 Bf6 Bb4 Bh4 Bc3 Ne6 Ba1 Bf6 Rg8 h8Q Rg6 Qh6 Qb6 Qhe3 Rh6 Rc2 Qbd4 Rc3 Qb6 Rh4 Qbd4 Bf4 Qb6 Kh2 g3+ Kh3 Qd2 Qd5 g1B Bf1 g2 Qed3 Qg7 Nbc5 Rg6 Rh7 Rh6+ Bh4 Bd4 Kh2 Kg4 Ra3 Bf2 Qde2 Qd3 Nb3 Bc5 Qc6 Qg5 Rd7 Qf6 Bg5 Qg7 Bd8 Qg5 Q2f2 Qe7 Ng5 Kf4 Qd4 Bh5 Ne6+ Kf3 Bg3 g1Q+ Kh3 Qge3 Kh2 Qf2+ Kh1 Qb2 Qg1 Qbd4 Bh3 Bg4 Qc1 Ke2 Bh2 Bh5 Qf4 Bg4 Qgf2+ Kd1 Qe1+ Kc2 Qfe3 Bf3+
NBq2Rrb/r1Q1RNQb/3p4/4prP1/1n1q2q1/1nnn3k/Q1B5/4R1QK w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Kf6 f4 Kf5 Kf2 h5 b6 e5 g3 a5 Kg2 a4 b5 e3 b7 d3 b6 a3 c5 e2 c6 Kg4 c7 a2 f5 d6 f6 d2 f7 Ne7 Nh3 Ra7 Na3 Na6 b8Q Nb4 b7 Bg7 f8Q Rg8 Nc4 Bf5 c8Q Ned5 Qe6 Nc3 Ng5 Bh8 Nb6 Qc8 Qc7 h3+ Kg1 h4 b8R h2+ Kg2 Na6 Na8 Nb4 Qeb3 Bb1 Qfg7 Bh7 Rb1 a1N Qa2 Nb3 Nf7+ Bg6 Qe1 d1Q Be3 Qd4 Qf2 e1Q Bd3 Qe2 Rhe1 h1R Bc2 Rf1 Kh2 Qed1 Qg1 h3 Kh1 h2 Rb7 Kh3 g4 Qe2 g5 Rf5 Rf1 Qec4 Rbe1 Bh7 Bf2 Qg4 Bb6 Qcd4 Bc5 Ra5 Ba7 Ra6 Bb8 Ra7 Rf3+ Kh4 Re2 Qc5 Qd7 Ne4 Nd8 Rf6 Qc6 Rf4 Re7 Nc3 Qc7 Qd4 Rf1 Kh3 Ref2 Re4 Rf8 Rf4 Nf7 Rf5 Rf2 Bg6 Rg2 Bh7 Rg3+ Kh4 Kg2 h1N Kh2 Nf2 Re3 Nfd3 Re1 Nbc1 Kh1 Nb3 Qf1 Kg3 Qg1+ Kh3
nn1BQ3/1BRr1N2/1NP3qq/1p2r2b/3rRp2/2bbr1q1/k1BR4/1RQ1K3 w - - 0 1 illegal: No possible last move
4rn1Q/N3rRq1/kPQb4/1rR1nB1K/2N3Q1/3n3p/nq2bpNB/2b2Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 d5 e4 Kd7 Kg4 Kc7+ Kh5 Kb6 b4 f5 g4 h3 c4 h2 e5 d3 g5 d2 g6 d4 e6 d3 e7 f3 e8Q f4 g7 f2 Bb2 f3 Qde1 d1N Qf7 a4 Qee8 d2 Qee7 a3 Qe3+ Qd4 Qfe7 a2 Q3e6+ Nc6 Q7d7 Bd6 Qef7 Nc3 Bh3 f1Q Bf5 d1R Nh3 Qg2 Nd2 Ba6 Nf4 Re1 Rc1 a1B Rf1 Nge7 g8Q h1N Qg4 Ne5 Qc6+ Ka7 c5 Rhe8 Nc4 Rab8 Ba3 Qb2 Ng2 Nf2 Rc2 Na2 Rc3 Bb7 b6+ Ka6 Qf6 Nfd3 Rf2 Bc8 b7+ Ka7 b5 N7g6 Bb4 Nf8 Ba5 Re7 Bc7 Rb1 b6+ Ka6 Rc1 Bd7 Rc3 Rbe8 b8Q h6 Qce4 Ba4 c6 Bd1 Qe1 Be2 Qf1 Nfd7 Qd8 Nf8 Rc1 Qdc3 Bb8 Qd4 c7 Qdc3 c8N Qd4 Kh4 h5 Na7 Qdc3 Kg5 h4 Kh5 h3 Qh6 Qbb3 Qh8 Bb2 Qc7 Qd4 Rc3 Bc1 Qc6 Qb2 Bc7 Ned7 Bb8 Qg7 Bc7 Bc5 Bh2 N7e5 Rb3 Ba3 Rb5 Bd6 Rc5 Bd1 Re2 f2 Re4 Be2 Rd4 Bc7 Rd7 Bd6 Rc7 Qc2 Rd7 Rb5 Rc7 Qb2 Rb7 Re6 Rf7 R6e7
R1N5/1R1Nq1kr/rP1rr1n1/2R2RQ1/1q1n2bq/1p6/1p3KbB/1Bb2QN1 w - - 0 1 illegal: No proof kernel
6b1/1rQN4/1PrbR1K1/nQ1NNQq1/pN1n4/1qB2b1r/3pB1k1/4nRr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 d5 c4 a5 b4 f5 b6 d3 e3 d4 b5 h3 b7 a4 g5 f3 b6 d2 c5 f4 c6 d3 c7 h2 g6 f2 g7 f3 Ne2 Nc6 b8Q Na5 Bg2 f1N Ra3 Nh6 g8N Nf5 Qb3 d1Q Nd4 d2 Ne7 Be6 c8Q Bg8 Bb2 Ra7 Nd5 Bd6 Nc2 Nd4 Bc3 Rb7 Ncb4 h6 Qbc4 Qb3 Kg6 h5 Qb5 h4 Qbc7 h3 Ra1 Rh4 Na3 Rh8 Rg1 h1B Re1 Nh2 Bf1 f2 Nc4 Bf3 Be2 f1R Ne5 Rf2 Rgf1 Rh7 Qcc5 Rhc7 Qb8 Rc6 Qc7 Rg2+ Ng4 Qd1 Ne7 Rg1 Bc4 Bg2 Qh5 Qc8 Ned5 Qf8 Qg5 Qf2 Bd3+ Kf3 e4 Qc2 e5 Qb3 e6 Kg3 Qe5+ Qf4 Qf5 Nhf3 Re3 h2 Be2 h1R e7 Rh3 e8N Bh1 Re6 Ne1 Ne5 Bf3 Nef6 Kg2 Nfd7 Qg5+
Qrb1n1RN/Knq1q3/1P4R1/2pr3r/N2R1b1b/1R4pk/3Q3B/1B1Bq2q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Ke6 e4 g5 b4 f5 h4 a5 e5 a4 d5+ Kf7 h5 f3 Ke3 c3 Kd4 a3 b6 a2 e6+ Kf6 b5 f2 d6 c2 Kc5 g3 e7 g2 e8B g4 b7 f4 h6 Kg5 h7 Be7 Nc3 Nf6 Nge2 g1Q Rb1 a1Q Bh5 Nc6 b8R Na5 Rb3 Qg3 Qd2 Ne8 Rg1 Kh4 Na4 f3 Nf4 Nb7+ Kc6 Qb1 Bd3 f1R d7 f2 b6 Rd1 Ng6+ Kh3 Bb2 c1B Be5 Qe3 Bh2 f1Q Bc2 Qa1 Bb1 Bh4 Rg2 Qe7 d8R Qag7 Rd4 Qh1 Kb5 c5 Rg1 Rf8 h8Q Rf5 Qg8 Qc7 Nh8 Qge7 Qf8 Be6 Rbd8 Rb8 Ka6 Bc8 Ka7 Rd5 Rd6 Rf1 Rg6 Rff5 Re1 g3 Bd1 Qe2 Rg8 Qf2 Re6 Qfe1 Reg6 Rh5 Qf3 Rdf5 Qdd3 Nd8+ Qb7 Bf4 Qd2 Rd5 Ka6 Bg4 Qa8 Nb7 Ka7 Bc8
QN2Q3/K3R2q/bPq3p1/nQq3RR/pn2bbR1/1Nk5/4br2/r1B2n1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 e4 Ke5 c4 d5 h4 f5 c5 a5 h5 g6 c6 d3 c7 Kd4 b6 g3+ Kf3 d2 b7 g2 h6 Bd6 e5 Ne7 b5 Rf8 h7 Qe8 h8R Nbc6 b8R Nb4 e6 Ba6 c8Q Qc6 Qa4 d1Q+ Ne2+ Kd3 b6 g1Q R1h4 Qgc5 Bh3 Qh1+ Bg2 Qh2 Rg4 Qh7 Rb7 d4+ Kf2 f3 Bh1 f4 Qb5+ Kc2 Nd2 d3+ Nd4+ Kc3 Nb3 d2 Ra3 Ra7 Qa8 d1B Rg5 Be5 Ra4 Bc2 Ke1 f2+ Ke2 f3+ Ke3 Ng8 e7 f1B e8Q f2 Rc7 Be4 Re7 Bf6 Kf4 Be2 Ke3 f1N+ Kf4 Qb7 Nc6 Rf7 Nb8 Qbc6 Rd5 Bg5+ Ke5 Qh6 Rh7 Rf2 Rh8 Qh4 Rh5 Bd2 Rg5 Qh7 Rh5 Qc7+ Ke6 Bf4 Rdg5 Qb7 Rc7 Ne7 Kd7 Nf5+ Kd8 Nd6 Re7 Qbd5 Nc6 Nb7+ Kc8 Nd6+ Kb8 Nc4+ Ne5 Rc7 Nd7 Qdc6 Rg2 Rc8+ Ka7 Rd8 Nb8 Rd1 Rgg5 Re1 Ra2 a4 Rd2 Rd1 Rdd5 Re1 Rg4 Na5 Rdg5 Rd1 Ba3 Rb1 Bc1 Ra1
q1n1n1RQ/3br2N/1p6/1krr2N1/3BPqNK/Rp5R/Nq3rBb/Q4n2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 e4 h5 d4 f5 a4 c5 g4 c4 a5 f3 a6 f4 d6 Kc6 g5 c3 d7 b3 g6 b6 a7 c2 g7 h3 Ra5 h2 Rd5 h4 Rb5 h3 Nd2 Nf6 g8R Ne8 Ne2 Rh5 Nc3 Rc5 Ra5 Bd6 Bb2 c1Q Ra3 Qc7 d8Q Bd7 Na2 Qb1 Ba1 Qb2 Bg2 Kb5 d5 Nc6 Qb8 Be5 d6 Ne7 Qc8 Rb8 a8N Rb7 Qd8 Nc8 Qb1 Qc1 Bd4 Qb2 Qa1 Ra7 Qf6 Qb7 Qh8 Rd5 Re1 h1R Re3 h2 Rd3 Rc1 Nc7+ Kc6 Ne6 h1R Rc3+ Kb5 Ng5 Qa8 Nh7 Rh2 Re3 Rcc5 Rd3 Bg4 d7 Bc7 d8N Bd7 Nf7 Be5 Kf1 f2 Nh6 Rac7 Ke2 f1N Rh3 f3+ Ke1 Rb7 Ng4 f2+ Ke2 Ng3+ Ke3 f1Q Nf3 Bc7 Nfg5 Qf7 Ngf6 Nf1+ Kf3 Ra7 Ne6 Qf8 Kg4 Qd6 Kh4 Qf4+ Ng4 Rb7 Bf3 Rf2 Bh1 Qf3 Bg2 Bh2 Neg5 Qf4 Re3 Rbc7 Rh3 Bc6 Bf6 Re7 Bd4 Bd7
3k1K2/Nn5Q/1pqnR2Q/5P2/3N1Q1R/rn3bBn/p1BBqr2/b1q1r1Q1 w - - 0 1 illegal: No proof kernel
k1B1Bn1q/b6Q/1p3Nq1/bPpN1bQn/3q3n/r2br3/1BNN3R/2R2K2 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 cxd5 Na6 Ra4 Nb4 a6 Nxa6 Ra5 Nb4 Ra1 Na2 e4 Kd7 g4 f5 d4 h5 b4 a5 e5 h3 g5 a4 b5 h2 g6 a3 g7 f3 d6 h4 d5 f4 Qa4 f2+ Ke2 h3 Qb3 f3+ Kd2 Nf6 g8N Nh7 Bc4 f1N+ Ke1 f2+ Ke2 Ng3+ Kd2 f1B Ke1 Nf5 Qg3 Nh4 Qg6 Bd3 Qg2 Nb4 Qb2 a2 Nf3 Ra3 Nc3 c5 Kf2 b6 Qc2 Qe8 Ke1 Qg6 e6+ Kd8 d7 Kc7 d8Q+ Kb7 e7 Bcf5 e8B Bd6 Bb2 Nf8 Qf6 Bb8 d6 Ka8 d7 Ba7 d8N Nd5 Ne6 Nf4 Nd2 Nh5 Rc1 a1B Qg5 Rh7 Kf2 Re7 Nd4 Re1 Nf6 Re3 Rhf1 h1Q Be6 h2 Ncd5 Qe4 Rh1 Qg4 Bc8 Qd1 Qb1 Qa4 Nc2 Qd4 Rhe1 h1Q Re2 Qh2+ Kf1 Qhe5 Ng8 Qh8 Ngf6 Rb3 Ba3 Bc3 Bb2 Bde4 Rh2 Ra3 Qa2 Bb4 Qb3 Ba5 Qd3 Bh1 Qe4 Bf3 Qe7 B3e4 Qh7 Bd3+
1n1q3N/3N3k/np3np1/3P1B1b/qR1R1Qrq/b1Q1n2r/R2B1Q2/b2K2R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 c5 e4 f5 a4 Kf7 h4 Kg6 e5 b6 h5+ Kh7 e6 b3 h6 g6 e7 f3 e8Q g3 a5 c4 d6 b2 d7 f2+ Ke2 g2 a6 f4 a7 c3 Nd2 b1Q Qe4 c2 Ngf3 g1B Nc4 Qa2 Nd6 Qa4 Bh3 f1N Rb1 Ne3 Bd2 Nf6 Nf7 Ba3 N3e5 c1N+ Ke1 f3 Rb4 Nb3 Qdc2 Bh2 Rg1 Nc5 Qf4 Nca6 Bf5 f2+ Ke2 Bb7 Qc3 Nc2 Kd1 Bd5 Qce3 f1Q+ Qe1 Rf8 Nh8 Qh3 Qe2 Qh4 Qef2 Qe8 d8R Bf3+ Qe2 Rf7 Nd7 Bh5 Qef3 Re7 Qe2 Re3 Qef3 Kg8 h7+ Kg7 Qe2 Rg3 Qef3 Rg4 Qf2 Qe7 d5 Bg3 Re8 Qd8 Ree4 Bh2 Red4 Bg3 Q4f3 Bc7 Qf4 Be5 Rdc4 Ba1 Re4 Nc6 Red4 Rc8 a8R Ncb8 Ra7 Rc3 Rc7 Re3 Rc6 Ne1+ Rc2 Rb3 Rb2 Nc2 Ra2 Rh3 Nc5 Qg5 Nf7 Ng8 h8Q+ Kf8 Qh7 Nf6 Nh8 Qh4 Qhc7 Kg8 Nd7 Kh7 Qc3 Ne3+
1RN1B2q/n3n1Bp/2bK1B1q/PR1Q4/3r4/QrkB2N1/2b2pQ1/b1nr2r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 b5 a4 f5 d4 c5 g5 b3 d6 b2 d5 f3 a5 f4 d7 b4 g6 b3 g7 h3 d6 h2 Be3 f2 Bd4 f3 Nc3 b1B Qc1 b2 Ne4+ Bc2 Rb1 Ne7 g8Q+ Kb4 e3 c4 Ne2 c3 Qg2 Bb7 N2g3 Bc6 Bd3 f1R Ke6 f2 Bg7 Qe8 d8Q Rd1 d7 Rg8 Nd6 Ra7 Re1 h1Q e4 Qh6+ Ke5 Kb3 Nc8 Rb7 Rh1 Rb4 Rh5 Rd4 Rf5 Na6 Qe3 Nc7 Qef3 Nb5 Qe3 Qh3 Ke6 Kb4 e5 Na7 Qef3 Qh4 Qd5 Qh3 Kd6 Qh4 e6 Qh6 Bh8 Rgg4 Bg7 Rg6 Qc7 Rg5 d8B Rgg4 Ra1 b1R Ra2 Rb3 Rb2 Qf7 Qd7 Qg8 Qe8 Qh8 Qh5 Bb1 Qhh3 c2 Rh5 c1N Rg5 Ng6+ e7 Bc2 Re5 Kc3 Rb1 Ra3 Rb8 Rb3 Qh5 Rh4 Qhf3 Rhh1 Qe3 Rc4 Qec5 Rhg1 Qa3 Ra4 Bf6 Bg7 e8B Rd4 Bde7 Qg8 Bf8 Bh8 B8g7 Qf8+ Re7 Qg8 Reb7 Ne7 Bf8 Bg7 Rb5 Qh8 Kc5 Kd2 Bg5+ Rf4 Bh4 Be5 Bf6 Ba1 Kd6 Rd4 Bg7 Kc3
7B/2K3PR/B2n3p/1Qbb1nb1/1BRr2p1/1kr1Rb2/nq1qN2B/Q2r2N1 w - - 0 1 illegal: No proof kernel
N1q2Bn1/1K3bp1/2rbn1B1/b1Q1R1Q1/1n1NP1Q1/1r5R/nk2qpQ1/r3B3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 c4 Kc5 h4 Kb4 b3 f5 b6 a5 b7 d5 c5 f3 h5 f4 c6 a4 h6 a3 c7 a2 h7 d3 Rh3 d2 Na3 Kc3 b4 d4 b5 d3 b6 Nd7 b8Q Nc5 b7 Ne6 Nc4 Ra3 Nb6 Rb3 Ba3 Bd6 Be2 Bd7 Qa8 Qc8 b8B Be8 Qd5 Bf7 Bc5 Kb2 Qg5 Qd8 Na8 Qc8 Qf1 d1R Qg2 d2 Bb5 Rc1 Ne2 Re1 Rd1 a1N Be8 Nc2 Nd4 Nb4 Ra1 Rb1 Ra5 Ra1 Rb5 d1Q Bba7 Na2 Bab6 Qd3 Ba5 Qc4 Be1 g3+ Kg1+ Qe2 Qg4 Be5 Bf8 Bd6 Re5 f2+ Kh1 f1N Kg1 Qd7 c8Q f3 Qc5 Ne3 Qg5 Qc8 Qg4 Bh5 Bg6 Nd5 Qg5 Ngf6 Qg4 Rg8 h8Q Ndb4 Qh6 Rh8 Nc2 Ng8 Nd4 Rh7 Qhg5 Rh6 Qh1 g2 Kh2 g1B+ Kg3 Nc7 Kf4 Ne6+ Kf5 Be3 Qhg2 f2 Rd5 Be7 Ke5 Bd8 Kd6 Bf4+ Re5 Ba5 Bf5 Bf7 Bg6 Qca6+ Kd7 Qac4 Kc8 Bh2 Rf5 Bd6 Re5 Qcc2 Kb7 Qc3 Qb6 Qc8+ Ka7 Be7 Bf5 Nf4 Qc5 Rc6 Bh7 Bd6 Bg6 Qe8 Kb7 Ne6 Q4f3 Qd8 Qfg4 Qc8+
3Bq1n1/3q1kp1/5rqR/3nr1RR/2PQ1R1p/K2bN1N1/2bbN3/bB2nQ2 w - - 0 1 illegal: No proof kernel
7b/Q1BN2p1/2QbQRb1/2R2pN1/B6q/1b1rPK2/QB1kn1n1/1rq1q1r1 w - - 0 1 illegal: Other
1B1QR3/brB3p1/3Pb1p1/qQq5/2N3kn/NBR3b1/1q2q1Rr/4nKRr w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 exf4 g5 b5 g6 hxg6 axb5 Qg5 Kf2 Qf6 Ke1 Qd8 h4 Kd7 d4 Ke6 b4 Kf5 e3 c5 b6 a5 d5 a4 b5 f3 e4+ Kg4 h5 f5 h6 c3 h7 c4 b7 a3 b6 f4 e5 a2 e6 c2 e7 c3 e8Q Be6 Be3 c1B Nh3 c2 Bc5 Be3 Ng5 c1Q Rh2 Na6 b8R Nh6 b7 Nf5 Bb6 Qc5 Qe2 Nh4 Qd2 Bd6 Qb5 Nb4 Na3 Ra7 Bc4 f2+ Kf1 Nd3 Bc7 Ne1 Nf3 Qg5 Rd1 a1Q Bb3 Qb2 Rc8 Be5 b8B Rb7 Qdd3 Bd6 Nd2 Qge5 Ke2 f1R Re8 Rh1 Rg2+ Kh5 Rc8 Rh2 Ra1 f3+ Kf1 f2 Ndc4 Qf5 Qd2 Bg3 d6 Kg4 Qda5 Qfe5 Rc1 Qec3 Re8 Q3b4 Rc3 Bd4 Qa8 Qa5 Rg1 Qc6 Rg2 Ba7 Rg1 Qc5 Rg2 Rf8 h8R Rf5 Rhf8 Rh5 Rf5 Rh7 Rg5+ Kf4 Ba4 Rh1+ Rg1 Nhf3 Bb3 Bh2 Rg2 Rh8 Qb6 Bg3 Qb5 Qb1 Ke2 R8h2 Bd1 Nh4 Bb3 Rb6 Qd5 Rb7 Qe5+ Kg4 Qf6 Qa1 Qd8 f1Q+ Kd2 Qff5 Ke2 Qfe5+ Kf1 Qb2 Qb6 Qe4 Qb5 Qee2+
B3b1qk/qR3rp1/1PN5/q1pQ1Kbb/1nR5/r1BQBB2/4rrnR/7N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 a5 d4 c5 e4 f5 h4 Kf7 b4 c3 e5 c2 h5 a4 b6 g3+ Kf3 a3 b7 a2 b5 g2 b6 Qc7 d5 Nc6 b8R Qa7 h6 Nb4 d6 Nf6 h7 Bd7 Nd2 Be8 d7 Nh5 d8B Be7 Rh2 Rf8 h8Q Bg5 Nh3 g1R Qh7 Rg2 Nc4 Re2 Be3 c1Q Na5 Qc4 Rc1 a1Q Nc6 Q1a5 Nf2 Qca2 Qg6+ Kg8 e6 Rf7 e7 Kh8 Qd5 Qc4 Rb7 Qca2 Kg2 f3+ Kh3 f4 Nh1 f2 Kg4 f3 Bg2 f1R Qgd3 f2 Rc4 Qb3 Bf3 Qba2 Rg2 Nf4 Bc7 Qb3 Be5 Qba2 Rg1 Ng2 Bc3 Rc1 Rd1 f1B Rd2 Rce1 Rb2 Rf2 Rc2 Be2 Rb2 Bf6 Kf5 Bg5+ Ke5 Bd7 e8B Bd1 Rd2 Ree2 Rc2 Bf5 Bd7 Bg6 Rb2 Ba4 Bf5 Bh5 B5e4 Re7+ Kf5 Qb3 Nb8 Bae8 Nc6 Rf7+ Ke6 Rf4 Rb8 Re1 Rd4 Rff1 Ne7 Nh4 Rh2 Ng2 Q5c4 Rf2 Ba1 Q7a6 Bc3 Qaa4 Ke5 Ra7 Ba8 Ree2 Rb7 Rf8 Rdh4 Rf4 Qce4 Qg8 Nc6 Rf7 Qed5 Q6b5 Rf4 Ra5 Re4 Qa6 Reh4 Qa7 Rc4 Qb5 Ke4 Ra3 Ke5 Qba5 Ke6 Re7+ Kf5 Rf7+
1n6/qRq2P1b/3QQ3/N1r3pk/1qB2Rr1/2Qbr2n/4pQN1/1Kb2RBr w - - 0 1 illegal: No possible last move
1r2Q2q/2B1NP2/1rK1k2B/BB2p3/Np1bR1b1/b1n1nQ2/1r6/1b1Rqn1N w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 c5 g4 b5 f4 h5 d4 e5 a4 b3 f5 c4 f6 h3 a5 h2 g5 b4 a6 b2 a7 c3 d6 h4 g6+ Ke6 d7 c2 f7 h3 g7 Nf6 g8Q Bc5 Ne2 Na6 Ng3 Nc7 Qf3 Nb5 Nc3 b1B Na4 Nc3 Bb5 Rb8 a8N Rb7 Rd1 h1N N8b6 h2 Nd5 Qf8 Bd2 c1B d8B Ba3 Ba5 Bb6 Bc1 Bd7 Ne7 Nfd5+ Kd2 Qg7 Qe8 Ne3 Ra2 Rg8 Rc2 Qh8 d5+ Kd6 Ra2 Bg4 Ra1 Bd4 Re1 Nf2 Nh1 Nfd1 Re2 Na2 Re1 Nf1+ Ke2 Rf8 Bh6 Nde3 Kf2 Nc3 Re2 Bd3 Rd1 Bb1 Nb6 Kc5 d6 Rg8 d7 Kd6 d8B Ke6 Bc7 Rf8 Ng3 h1R Na4 Rh5 Nh1 Rh2+ Kg1 Rf2 Ree1 Rb2 Re2 Nf5+ Kg2 e3 Qe4 Bh3+ Kf3 Rg8 Ree1 e2 Qd3 N5e3 Qe4 Na2 Qd3 Bg4+ Ke4 Nc2 Qf3 Nc3+ Kd3 Rf8 Kc4 Rg8 Qa8 Rd8 Qb8 Rd5 Qe8 Rd8 Rd3 Rdb8 Re3 Bc5 Rd1 e1Q Re4 Bg1 Be3 Bf2 Kc5 Bg1 Kc6 Bf2 Bc1 Bd4 Bf4 Nce3 Bh6 Rb6+
2bnr3/2Q2p1K/bNB3N1/1B2n2q/1brr2pB/RP2q2R/Bb4QR/k4n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 a5 c4 a4 h5 d3 h6 d2 h7 a3 c5 f3 c6 f2 c7 a2 b6 g3 b7 g2 Qc2 d1R Nc3 g4 Bg5 d5+ Kf4 d4 e4 d3 e5 d2 Rh2 Bb4 Bh4 Ra4 Bb5 f1N Nf3 g1Q Nd5 Nc6 b8Q Nf6 Kg5 Re8 Kh6 Nd7 h8R Qe3+ Kh7 Qdg5 Nb6 Nd8 Qc6+ Kf5 e6 Ne5 e7 Rc1 b3 d1B Qc2+ Kf4 Qg2 Ke4 Bc6+ Kd3 Rh3 Bd7 c8B Kc3 Qc7 Be2 Ba6 Kb2 Bd3 Bc8 Bb1 Rc4 Rh2 Nd7 Ne5 Rd4 Ng6 Ne5 Bc2 Bea6 Rh3 Rf8 e8B Rc4 Bed7 Re8 Bb5 Rd4 Bdc6 Rc4 Rc1 a1B Bb1+ Bd2 Ba2 Qh5+ Kg7 Rd4 Rh6 Rac4 Kh7 Ka3 Re1 Bb2 Ra1 Bb4 Rh2 Qf5 Bf6 B2c3 R6h3 Qfg5 Be7 Qf5 Bh4 Qh5+ Kg7 Rd2 Bb1+ Kb2 Ra3 Bd4 Ba2 Ka1 Ba8 Bb2 Bac6 Qhg5 Kh7 Rdd4 Nh8 Qf5+ Ng6 Qh5+
2Q1r2N/NR1nQp2/3QB2k/3Prn2/nbb2qr1/q4rN1/R1p3KN/B1b5 w - - 0 1 legal: proof: b4 h5 g4 e5 gxh5 a5 f4 axb4 c4 exf4 Kf2 d5 Ke1 dxc4 Kf2 g5 e4 c5 d4 b5 a4 c3 h4 f3 a5 c4 h6 c2 a6 b3 h5 b2 h7 b4 e5 b3 d5 g4 h6 c3 e6 Bb4 a7 Kf8 Bb5 Ba6 Nd2 b1R Nf1 b2 Bd7 Ne7 Ng3 Nf5 Qd3 Qe7 Ra2 Bc4 Qf1 Rg8 h8N Rg5 h7 Kg7 Qd3 Qd6 e7 Qf4 Be6 Nd7 Bd2 c1B e8Q c2 Qe7 Re8 a8N Qd6 Kf1 f2 Kg2 f1R Be3 Rf3 Qa3 Qf4 Nb6 Rh5 Nc8 Kh6 Bd2 Ra1 Be1 b1N Na7 Nc3 Bd2 Na4 Bc3 Rb1 Ba1 Rbb3 Qd6 Rbe3 Rh3 Re5 Qe3 Rh4 Qe4 Ra3 Nf3 Rc3 Rh1 Ra3 Nh2 Rf3 Ne2 g3 Re1 Bcd2 Rb1 Rg4 Qe3 Bc1 Qec5 Ba5 Rb7 Bb4 Qe7 Qe3 Qcd6 Qa3 Kh3 g2+ Ng3 g1Q Bd4 Bb5 Ba1 Qge3 Kg2 Nf6 Ng6 Bc4 h8Q+ Nh7 Qg8 Nf6 Nh8 Qf4 Qgf8+ Ng7 Qg8 Nd7 Qgf8 Ra8 Qc8 Nf5 Qcc7 Rag8 Qc8 Re8
Rn2b3/4np2/B2PN1r1/Qq1kN3/rn1B1Rn1/1K2b1RQ/1rp3q1/3b1B1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Kd6 Kd2 a5 Kc2 h5 g4 c5 e4 c3 e5+ Ke6 g5 h3 b6 c4 b5 h2 b7 h4 b6 f3 g6 f2 g7 a4 Ra3 h3 Qd2 Qd5 Nf3 Bd7 Bb2 Qb5 Ng5+ Kd5 e6 Be8 e7 Rh6 Ne6 Rg6 Rb3 Ra6 Na3 Ra7 Rg1 h1N Rg4 h2 Rf4 Ra6 Qe3 Ra8 Qh3 Ra5 Nb1 a3 Nd2 a2 Nf3 a1R Ne5 R5a4 Ra3 Ra2 Rb3 Nf6 g8B Ng4 Bh7 Ng3 Ra3 h1Q Rb3 Nd7 b8Q Bh6 b7 Qg2 Qd8 Nf5 b8R Bg5 Qc7 Bh6 Ra8 Nb8 Qa5 Bg5 Kc1 c2 Rg3 Bh6 Kd2 c1N Kc2 Nd3 Kc3 Nb4 Ba1 Bc6 e8B Ne7 Bd7 Bg5 Bc8 Be8 Ba6 Bh6 Rf6 Be3 Rf4 Rh6 Bhd3 Rg6 Bb2 Qe4 Bg2 f1B Bh1 Be2 Ba1 Bd1 Bf1 Kd6 d5 Qg2 Nd8 Kc5 d6 Kd5 Ne6 Bb6 Bb2 Bf2 Kd2 c3+ Kc1 c2 Bd4 Nh6 Kd2 Ng4 Kc3 Be3 Kb3 Rb2+
4BN1n/2N1p3/qRQBn1Qr/4B2p/qr3Rb1/P7/1nbrR2b/1B1k2bK w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kd7 Kf2 Kd6 g4 Kc5 Kg2 Kd4 g5 h5 f5 b5 a3 c5 d6 b3 d3 c4 f6 b2 d7 b4 f7 c3 g6 e3 g7 c2 Rh2 h3+ Kh1 e2 Qe1 b3 Qd1 e1N Qf3 Na6 Qc6 Nc7 Bd2 c1B Nc3 b1R Re2 h2 Nd5 b2 Nh3 Ne6 Nhf4 Rh6 Nc7 Qe8 Bb4 Be3 d8B Bg1 Ng6 Ra7 Bc5+ Kc3 d4 Nd3 d5 Rd1 d6 b1B d7 Nb2 Bh3 Ra4 Bf5 Bc2 Rb1 Rb4 Bd6+ Kb3 Bd3 Rd2 Bb5 Nf6 g8B Nh7 Bd3 Bg7 f8R Be5 Rf4 Ng5 Nf8 Nf7 Bgh7 Nh8 Bhg6 Qf7 Bdf5 Qf6 Be8 Qh4 Na8 Qf6 B8c7 Qh4 d8Q Qg4 Rff2 Qc4 Bb8 Qa6 Rf4 Bd7 Qdb6 Qa4 Kg2 Bc8 Nc7 h1Q+ Kf1 Qh4 Kg2 Qf6 Bh7 Qg6+ Kh1 Qd3 Be4 Qda6 Bf5 Bh2 Qg1 Bd4 Qg6 Bb6 Ba7 Bbg1 Bd4 Nd8 Bd3 Bg4 B4e5 Ne6 Bf5 Bd3 Qf3 Kc2 Qc6+ Nc4 Rb3 Kd1 Be4 Nb2 Bf5 Rd4 Rb6 Bc2 Be4 Rb4 Bd3 Bb3 Bb1 Bc2
2bBBb1r/k1r1p1R1/B2P4/2q2n1Q/qQp3n1/2Nn4/1KBb3R/1R1bN2q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 a4 Kd7 g4 c5 d4 Kc7 Kd2 Kb6 Kc2 h5 f4 h3 f5 h4 d6 h2 a5+ Ka7 g5 b5 d5 e3 f6 b3+ Kb2 e2 d7 e1B d6 b4 f7 h3 g6 Nc6 g7 Qc7 d8R Qd7 a6 Bd2 Nf3 Ne5 Ne1 Qa4 Qh5 Ng4 Nc3 N8h6 g8B Nf5 Rb1 c4 Bd3 Rb8 Bc2 Rb7 Bh7 Rd7 Bg6 Rc7 Rg1 h1Q Rg3 Bf4 Bd2 h2 Rh3 Qhc6 Rh4 h1N Rh2 Nhf2 Be3+ Kb8 Bb6 Qc5 a7+ Ka8 Re8 Bd2 Ba5 Kb7 a8B+ Ka7 Bb7 Qe5 Ba6 Qc5 Rc1 Nd3+ Kb1 Bfh6 Rg8 Bf8 Rg7 b2 Rd1 Qd7 Ka2 b1B+ Ka1 b3 Rc1 Nde5 Kb2 Qa4 Rd1 Rb7 Bd8 Rc7 Be4 Bc2 Rb1 Bd1 Bc6 Ng3 Bc2 Nf5 Be8 Nd7 Na2 Bh6 Nf3 Nde5 Kc3 Nd4 Rd2 b2 Rh2 Be2 Rg1 b1Q Rf1 Qb7 Rb1 Qbd5 Kb2 Bd1 Qh4 Qa8 Qe1 Nf5 Qb4 Bd2 Ne1 Qh1 Nc3 Nfh6 Rg6 Bg7 f8Q Nf2 Qf3 Bf8 Qe2 Nf5 Qh5 Nfg4 Rg7 Nd3+
k1q4R/n1r1p3/Qp3b2/2R4K/N2Bnb1N/q1Qbb2r/1qB1Q2P/2N2Qn1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 d4 c5 a4 Kc7 f4 g5 a5 e3 a6 b3 d6+ Kb6 f5 Ka7 d5 g3 Kf3 c4 Kg4 b2 d7 g2 f6 c3 d6 e2 f7 e1B Bd3 b6 Bc2 Bd2 Qf1 Bg7 f8N Bf4 Ng6 Rh3 Nh4 Bf6 Be3 Nc6 Kh5 g4 Bd4 g3 Ne2 g1B Nc1 g2 Ra2 Qf8 d8Q Bge3 d7 g1N Qc7+ Bb7 d8Q Rc8 Qe2 Ka8 a7 Ba6 Ra5 Bc4 Rc5 Bd3 Qd5 Qe8+ Qf7 Qd7 Qe5 Rc7 Qc4 Qc8 Qf5 Nf3 Rd1 Ng1 Qa6 B4g5 Qff1 Bgf4 Ba4 c2 Nc3 b1Q Bb3 Nh6 Na4 Nf7 Qa5 Qb2 Qc3 Ng5 Rd2 Ba6 Rd1 Ne4 Rd3 Bd2 Rg3 Bb5 Rg8 Bde3 Rh8 Qa3 Na2 c1Q Bc2 Qcb2 Nc1 Kb7 Qeg2 Bd3 Qge2 Ka6 a8Q+ Na7 Qd5 Qaa2 Qd7 Kb7 Qb5 Ka8 Qa6 Qaa3
qr3qN1/2NRp1qp/N5b1/nrR1K2b/2B4P/1Qr1Bk2/B6Q/b1N3nr w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Ke3 Kf5 h4 a5 d4 a4 f4 b3 c4 b2 c5 a3 d5 g3 Kd4 g2 c6 g4 b6 a2 c7 e3 d6 g3 d7 e2 b7 Kg4 f5 Ra3 f6 Rc3 f7 Nf6 Na3 b1B Be3 Ne4 Nb5 Nd2 Qb3 e1R Bc4 Bg6 Rd1 a1Q Ne2 g1Q Ke5 g2 Nc1 Qa8 Rh2 Bh6 f8Q Bg7+ Qf6 Qf8 d8N Kg3 Nf7 Bg4 c8B B4h5 Nc7 Rf1 Bf5 Kf3 Nh6 Re1 Ng8 Nc6+ Ke6 Na5 b8N Re2 Qe5 Bf6 Bb1 Bg7 Bc5 Qd4 Rhh1 g1R Ba2 Re4 Rh2 Rh1 Nba6 Rg4 Re2 Rg5 Qh2 Qg1 Bd4 Rb5 Re5 Qg5 Be3 Qh6 Rc5 Bd4 Bd3 Qfg7 Nf6 Rhb8 Bc4 Qf4 Ng8 Qff8 Rg1 Nf1 Rgg5 Ng3 Rgd5 Ne2 Rd8 Ng1 Rd7 Rc2 Qd2 Ba1 Qh2 Nb7 Kd5 Rc3 Ke6 Qgf7+ Ke5 Q7g7+ Kd5 Na5+ Ke6 Qh6 Ke5 Qhg7+
k3Nb2/2KPQ2b/pbn3R1/3q1B1N/1r4qN/n2QBr2/3np2R/qN1B1q2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 Kb7 g4 h5 d4 e3 f4 c3 b4 a6 g5 c2 b6 c4 b5 e2 g6 e1N f5 c3 g7 h3 d5 h2 d6 h4 f6 h3 f7 Nc6+ Kd5 e5 Qd3 e4 Be2 e3 Bd1 e2 Nf3 Bf5 Nh4 Qd7 Be3 c1Q Kc5 Nf6 g8B c2 Bh7 Be4 Bf5 Rb8 Rg1 h1Q Rg6 Ka8 b7+ Ka7 Ra5 h2 Ra3 Qf1 Ra1 Ra8 b8N h1Q b6+ Kb7 Ra4 Qhh3 Ra1 Qg4 Ra4 Qd8 Nd7 Rb8 Rc4 Ka8 b7+ Ka7 Rb4 Qb2 Rb3 c1B Rc3 Qa1 Rc4 Nh7 Nf6 Nc2 Ne8 Nf6 Rc3 Na3 Rc4 Rc8 b8N Ka8 Nd7 Rb8 Rc3 Rb4 Rb3 Nh5 Ndf6 Ng3 Nh5 Bd2 Rc3 Be1 Rc4 Bf2 Rd4 Qdg5 Rd5 Rh7 Re5 Rh8 Re7 Rg8 d7 Rh8 Kd6 Bg1 Be6 Qd5+ Kc7 Bf2 Bf5 Rh6 Rg7 Rf6 Rg6 Bg1 Qb5 Bc2 Qd3 Ne4 Re5 Nd2 Re6 Bg7 f8Q Bf2 Qe7 Bf8 Rh6 Rf7 Reg6 Bg1 Be4 Rf3 Bf5 Bf2 Bf4 Bc5 Be3 Bb6+ Kc8 Ne4 Nf4 Qd6 Rg8 Qc3 Qb5 Qdd4 Nhg2 Qa1 Rh2 Nd2 Bg6 Qg1 Nh5 Qde4 Nh4 Bc5 Kc7 Qd5 Qc4 Bf5 Qd3 Qf1 Bh7 Be6 Rg5 Bg8 Bf5 Bh7 Rg6 Bb6+
rnbr4/R2p4/Nnq1B1B1/K3b1r1/N7/R2nBP1R/1b3Q1p/Q2bB1qk w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Kf6 g4 Kg5 b4 Kf4 g5 e5 f3 Kg3 g6 a5 g7 h5 c5 d3 Kc3 e3 b6 e2 b7 e1Q+ Nd2 h3 b5 a4 Kb4 h4 b6 e4 Ra3 Ne7 g8B h2 c6 e3 c7 e2 Be6 h3 Kb5 Qe8 Nb3 d2 Nc5 Nd5 Na6 Qg6 Ka5 Bd6 Qc2 d1B+ Bd2 Nc3 Be3 Rd8 Qb2 Qf2 Qa1 e1N Bd3 Kg2 Ne2 Nd5 Nc3 Be5 Bb1 Qf6 Bg6 Qf1 Rb3 a3 Na4 a2 Ra3 Qf2 Kb5 Nc6 b8B Qg1 b7 Nb6 Ba7 Nb8 Ka5 Nd3 Bf2 Nd5 Bae3 Nb6 Be1 Qf2 Rf1 h1R Rg1+ Kh2 Rg4 Rg1 Rh4 Kh1 Rh5 h2 Rh3 Rg2 Kb5 Nc6 b8R Qg1 Rb7 Rg5 Ra7 Nb8 Ka5 Bb7 c8Q Bb2+ Qc5 Bc8 Qc1 a1B Qb1 Be5 Qcc2 Bab2 Qa1 Nc5 Qf2 Nd3 Bg4 Qd6 Be6 Qc6
3n1nRn/k1rpB3/1N1K2R1/P4N2/3R2Nb/2pQ2qQ/1rr3b1/qqrN1B2 w - - 0 1 illegal: No proof kernel
Nn5r/b1P4Q/bRQ3Bq/prpB3n/5nRq/2K5/2rBk1r1/1RBq3N w - - 0 1 illegal: No proof kernel
2RbR1qB/B1p2b1N/1r2n3/3n4/2n1K2q/4NB2/BPrk2p1/Q1qr1QQr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Kd6 d4 f5 h4 a5 h5 g5 h6 g3+ Kf3 a4 h7 c3 b6 g2 d5 Ke5 b7 c2 d6 a3 d7 g4+ Ke2 a2 Kd3 g3 Bd2 c1Q Rh4 f3 Bb4 f2 Rh6 Kf4 e5 Ne7 e6 Na6 b8Q Nd5 Na3 Be7 Qb5 Rb8 Nf3 g1Q Nc2 Rb6 Bg2 f1N Ne3 Nd2 Bc5 Nc4 Ng5 Qf2 Be4 g2 Qg1 Qg8 d8Q Qh4 Bf3 Bb7 Qdd7 Bd8 e7 Bc8 Qdc6 Be6 e8B Bf7 Rb1 a1R Qa8 Ra4 Bd7 Rb4 Be6 Rc6 Ba7 Nc5+ Kd4 Rb6 Rh5 Rb3 Ra1 Rc3 Ra5 Rc2 Rh6 Nd2 Qbf1 Nc4 Rb5 Rd6 Rb8 Rb6 Bd7 Ne6+ Kd3 Kg3 Rc8 f4 Rg6 Ng7 Ke4 Ne6 Bg4 f3 Rh6 Nef4 Re6 f2 Re8 Ne6 Ba4 Ne5 Bb3 Nc4 Qd3 f1R Ba2 Rc3 Qb1 Rc2 Qa1 Re1 Qc6 Rd1 Qb5 Qh2 Bf3 Qh1 Qh2+ Kf2 Qa6 Ke1 Qg1+ Kd2 Qb5 Na3 Qbf1 Nc4 Qb1 Qf8 Qa1 Qh4+ Ng4 Rg8 h8B Rg7 Nh7 Qg8 Qh2 Rg5 Qhh1 Rh5 Qhg1 Qhg5 Ne3 Rh1 Re7 Qf6 Re8 Qh4+
K4qq1/2p1N3/Bk1rqQN1/5Np1/r4bR1/1BPbb2q/QB1N1n2/1R2nr2 w - - 0 1 illegal: No possible last move, all moves rejected
N1RqNK1b/1pb2R2/2BP3k/q5N1/n1Rp4/6r1/nB1qR3/Q1bnQr1b w - - 0 1 illegal: No proof kernel
q2N1kb1/1p4bp/N1n3n1/Nb1P4/r1nR2rQ/3qBK2/1R2Rb1N/1BQ1r3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d6 f5 Kf2 c5 a4 c4 g4 f3 d4 b3 e4 b2 g5 h3 d7+ Kf7 d5 f4 e5 h2 g6+ Ke7 a5 c3 e6 c2 g7 Ra7 a6 Nc6 Na3 b1N Nc4 Na3 Bd3 Qe8 Bd2 c1B Rb1 Bb2 Qc1 Bd4+ Ne3 Qd8 Rb2 Qa5 d8N Bd7 Kf1 f2 Ke2 f1B+ Kf2 f3 Bb1 Ke8 e7 Bb5 Kg3 f2 Nc4 f1R Nf3 Be6 Rg1 h1Q Nh2 Rf4 Rd1 Rf1 Bh6 Qe4 Rd3 Be3 Rd4 Qd3 Bf4 Re1 Kf3 Nh6 g8Q Nf7 Qg4 Rg8 Qg3 Rg4 Qh4 Nh8 Bg5 Bg7 Bf4 Kd7 e8R Bg8 Bg5 Bf2+ Re3 Qd1+ Ree2 Qd3+ Be3 Ke8 Ba2 Kf8 Bb1 Ra8 a7 Nb4 Nf7 Ng6 Nd8 Rb8 a8N Nc6 Nc7 Ra8 Qd2 Qa7 Qc3 Qb8 Qc1 Ra4 Na5 Qa8 Na6 Nc4
kq1bQb1N/P2b1RQ1/1pnQ4/5n1q/4R3/r1nR1p2/rb2qK2/B1Q2B1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 h4 f5 a4 c5 e4 Kc7 h5 g5 e5 g3 a5 f3 h6 g2 h7 c4 e6 f2+ Ke2 f4 e7 c3 e8Q f3+ Ke3 g4 a6 g3 Na3 c2 Nh3 g1B Nc4 g2 Bb2 b3 Ra4 Bd7 Ba1 b2 Ne5 b1N Ng6 Nh6 Qc1 Nc6 d6+ Kb8 d5 Nc3 Re4 Ra7 Rh2 Ka8 Rh1 Rg8 h8Q Qb8 Qg7 b6 Nh8 Bh2 Rg1 Be5 Rh1 g1Q Rh2 Qg4 Rg2 Bf5 d7 Bc7 d8R Qh5 d6 Bg4 Rd7 Bd8 Rf7 Be6 Rg5 Bd7 Rd5 Nf5+ Kf4 Rc7 a7 Rc8 Rd3 Rc7 Be2 f1Q Nf2 Qd1 Bf1 Rc8 Nh1 Rc7 Qe3 c1B Qd2 Bb2 Qc1 Ne3 Kg3 Nf5+ Kf2 Rc8 Qh7 Rg4 Qg7 Rc7 Ree7 Ra4 Re4 Ra3 Ng3 Bc8 Nh1 Re7 d7 Re5 Qch6 Rea5 Qc1 Ra2 Re5 R5a3 Re4 Bde7 d8Q Bd7 Qc7 Bd8 Qd6 Qe2+
nb2R3/p1bK2N1/N1b1Q1PQ/qrq2r2/5pB1/r3Q1bB/1B3R1Q/1kn1n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 h5 g4 c5 d4 f5 b6 f3 b3 f2 d5 h3 g5 h4 b7 c3 d6 c2 d7 h2 Ke6 c4 e5 h3 g6 c3 Bd2 c1B Qc2 Ne7 Qa2 Nbc6 b8Q+ Bb7 Qc8 Nd5 Na3 Na5 Nb5 Bc6 Ne2 Nb6 Ng3 Bd6 Nh5 Bc7 Ng7 Rb8 Be2 f1Q Bg4 Qf2 Rf1 Qc5 Rf2 h1N Bh6 h2 Qe2 c2 Qe3 Qg5 d8Q Na8 Qf8 Ba3 Rg1 c1B Re1 Bd2 Ree2 Be1 Bh3 Rb6 Qce8 Bb8 Nc7 Rb5 Qef7 Bb2 Na6+ Ka3 b4+ Ka2 Bg4 Qh5 Bg5 Bc7 Bf6 Nb3 Qd7 Kb1 Qde7 Bd5+ Kd7 Nc1 e6 Bbe5 Qee8 Bb8 e7 Bec7 Bb2 Qg5 Qc8 Rh5 e8B Rh3 Bf7 f4 Bfe6 Qh5 Qh8 Qe5 Qh6 Qec3 Qg8 Qa3 Qe8 Qa5 Bef5+ Be4 Qe6 Rg3 Bh3 Rg5 Bfg4 Rf5 Rf3 Bg3 Rff2 Rb7 b5 Bg2 Rf3 Nf2 b6 Nfd3 Rff2 h1R Q6e4 Qf8 Q3f3 Na2 Bc1 Ka1 Rf1 Rh2 Qc6 Ne1 Re8 Kb1 Qe6 Qfb4 Ba3 Nc1 Qf2 Bd5 Qg1 Rb2 Qh2 Rb3 Bb2 Ra3 Qe3 Qbc5 Rf2 Be5+ Kd8 Bbc7+ Kd7 Rb8 b7 Bcd6 Qh1 Be4 Qh2 Bc6+ Ke6 Rc8 b8Q Rc7 Qbb3 Rb7 Qd5 Bb8 Qd7 Bec7 Qf7 Bd5+ Kd7 Rb5 Qfe6 Bc6+
1B2n1Qr/p6P/bq2q1BQ/Bn3p1n/K4b2/Q3n1N1/R2Nrkr1/2R1q2B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 h4 Kc5 c4 g5 Kc2 f5 Kb3 d5 h5 d3 h6 Kd4 e5 f3 e6 d2 h7 Ke3 b6 g3 b7 g4 e7 f2 e8Q+ Qe7 c5 g2 c6 g3 c7 d4 Ra3 d3 Qa4 Na6 b8B Nf6 Ne2 g1Q Ra2 g2 Qa3 Bh6 Ng3 Bf4 Be2 f1Q Ka4 Qe6 b4 Qe1 b5 Kf2 b6 Nh5 b7 Re8 Qc2 d1N Qc6 Ne3 Bd2 Rh8 Bb4 d2 Ba5 d1N Nd2 Re8 Qcd6 Rh8 Bc4 Re8 Qf8 Re7 Qh6 Nc3+ Kb3 Nb5 Ka4 Qb1 Bd5 Qge1 Bc6 g1R Be8 Rg2 Bg6 Nd4 Rg1 Qbb6 Rh1 Nb5 Rg1 Bd7 c8B Nac7 Rh1 Bc6 Bd7 Bd5 Bc6 Bc4 Bd5 Ne8 Be4 Qe2 Rc1 Qe1 Bf3 Nbd6 Bd5 Ba6 Bf3 Nb5 Bc6 Rh2 Bh1 Rg7 Be5 Rg2 b8Q Rg8 Qc8 Rh8 Qd8 Rc8 Bb8 Rc2 Qd5 Qe5 Qg8 Qee6 Nb3 Re2 Nd2 Qf7 Nb3 Qff6 Nd2 Qfe6
2Q5/p1N3p1/2nqR3/4NN2/RbrnK1B1/1R2b1rN/bqPnQ1r1/Bb5k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 e4 Ke5 h4 f5 b4 d5 h5 f3 b6 f2 b5 f4 h6 g3 b7 f3 b6 g2 h7 Nc6 b8Q+ Qd6 b7 Nh6 Nc3 Nf5 Rh3 Be6 Bb2 Kf4 Rh6 Kg3 Qd8 Rc8 Be2 f1B b8N f2 Nf3 g1B e5 Kg2 Nh4+ Kh1 Kd2 d3 Qe8 d4 Ra4 Ba2 e6 Bb1 e7 Bh3 Ba1 f1N+ Ke1 Bg4 Ne4 Be3 Ng5 Nd2 Re6 Bf3 Qd8 Bd5 e8N Bda2 Nd7 Qb8 Ne5 Qb2 Qd7 Bb4 Nc7 Rhf8 h8R Rf6 Ngf7 Rg6 Bg4 Rg5 Qe2 Rg6 Bh5 Rg2 Ng5 Nc4+ Qd2 Bf4 Ngf7 Rf8 Qc3 d2+ Kf1 d1Q+ Qe1 d3 Ng5 d2 Bg4 Rd8 Qc8 Rd4 Rd8 Rd3 Nh3 Rdg3 Rd3 Be3 Rc3 Qf3+ Qf2 Qd5 Ke2 d1R Rd3 Qc5 Rb3 Rf1 Kd3 Nd2 Qe2 Rf4 Nf7 Rc4 Ne5 Nfd4 Nf5 Nf1 Ke4 Qf8 Kd3 Qd6 Ke4 Nd2+
2Q4r/1n2NbK1/R2Bnn2/1N5Q/rp1BRpqb/1Q3Rn1/1P6/1k1nn1rQ w - - 0 1 illegal: No proof kernel
Q1B3BK/6Nb/b3q1bN/bk1rP3/R3pR1R/Q3p3/1rr1nB2/nb1Rb3 w - - 0 1 illegal: No proof kernel
n2b4/2Qb3N/1K2n2p/5BpR/3n1BQn/2r1PN2/Bknr1n1B/r1qR3N w - - 0 1 illegal: No possible last move
4r1QQ/2bbr1R1/rNB1Qp1R/1rr1N2n/KRQ2r2/p6q/n3b2P/5kB1 w - - 0 1 illegal: No possible last move, all moves rejected
n2Q2b1/1b3k2/NPB5/n1r2rK1/R1R1b1Q1/4bRR1/p1qN1pQB/1br4b w - - 0 1 illegal: No possible last move, all moves rejected
3Kb2k/N2rpBNb/r3BQ2/n1RR1b2/q1Qbn2b/3Bn2P/1B1R1p2/2b5 w - - 0 1 illegal: No proof kernel
1B2Q2b/3pR2r/1N1KbR2/Q4N2/1p3r2/2kP1BrB/qr2nB1n/1r1b1Q1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 c4 h5 g4 f5+ Kd4 a4 e4 f3 e5 f2 b6 f4 c5 a3 c6 f3 c7 h3 d3 h2 b7 h4 g5 h3 g6 a2 g7 Nh6 Qe2 Rh7 Bf4 Ng4 Nd2 Nc6+ Kc4 Nd4 b8B Bb7 c8B Qa5 Rb1 a1R Ba7 Ra2 Re1 Rb2 g8Q+ Kf5 e6 Bg7 e7 Qa2+ Kc5 Bh8 e8Q Bd5 Bg3 Be6 Nc4 Kf6 Qd1 Ne2 Kd6 Rb8 Bg2 f1R Bb7 f2 Nf3 Ra8 Rg1 h1B Nh4 h2 Bh3 Bf3 Nb6 h1R Nf5 Nh2 Bb8 Ra5 Qa4 Re5 Qa5 Re3 Rg2 Rfg1 Ba8 f1R Bf2 Re4 Rg7 Rf4 Re7 Rg3 Rc1 Bg4 Bf3 Bh5 Rc6 Rfb1 Kc5 Bg4 Rd6 Ke5 Qg5 Re4 Qc1 Rf4 Qf1 Nc3 Bb7 Bd1 Bf3 Ne2 Ng7 Rb3 Rd5+ Kf6 Kd6 R3b2 Rg5 Nc3 Nf5 Ne2 Kc7 Qd5 Rg6+ Ke5 Qa7 Qa5 Rf6 Qa2 Qa5+ Qd5 Ne3 Kd4 Nf5+ Kc3 Qg1 Rhh4 Qf1 Qa2 Kd6 Rh7
2bR1Q2/Pb1nQ3/1n1N2bb/k3r2b/N2R3b/2pN2Bp/Kr1r1R1N/2q2B2 w - - 0 1 illegal: No possible last move, all moves rejected
b3R1QR/p1nkb2p/5B1r/2R2N2/qnBn1b2/3bP3/b1r1B2b/2NK2QB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 d4 c5 g4 f5 b4 c3 d5 a3 g6 c4 g5 a2 d6 f3 g7 f4 g6 c2 b5 c3 b6 Be7 b7 Na6 b8Q Qa5 Be3 c1N Rh3 c2+ Qb4 Nf6 g8B Be6 g7 Qa4 Nd2 Rd8 Bd4 Nb3 Qc4 c1B Ne4 Nb4 Ng3 Nfd5 Bf6 Nd4 Nf5 Nc7 Rh5 Kd7 Bg2 Rb8 Bh1 Rb6 Bf7 Bd5 g8B Ba8 Qcb3 Ra6 Bc4 Rb6 Rb1 a1B Bb5+ Rc6 Bgc4 Rc8 Ba6 Be3 Qc1 f2+ Kd1 f1B Bab5 Bf2 e3 f3 Ne2 Bg3 Rb2 f2 Ba6 Kd8 d7 Bh2 Qb1 Rb6 Nc1 Bd3 Rg5 f1B Rg8+ Ne8 Rc2 Bfg2 Rc3 Bgd5 Rh8 Kc7 d8R Bb2 Bg7 Rh6 Bf6 Kc6 Rc2 Nc7 Rde8 Kd7 Qa1 B3e4 Be2 Bd3 Rc5 Bc3 Qb1 Be1 Bc4 Beg3 Qb2 Be5 Qd2 Bef4 Qe1 Bb1 Qf1 Ba2 Qg2 Be4 Qg1 Bd3 Ba6 Nde6 Ra5 Ncd5 Rb5 Rc3 Rc5 Rc2 Qc4 Ndc7 Qd5+ Bfd6 Bc4 Nd4 Qdg8 Bdf4
1R1Qbn2/1brBQ2K/bq6/1Q1bRqr1/3bp3/n1p1N1b1/Q1P2k2/N2BR3 w - - 0 1 legal: proof: e4 b5 d4 g5 a4 e5 axb5 f6 h4 gxh4 Bf4 exd4 e5 Nh6 e6 Ng8 Be5 fxe5 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 a5 f4 h5 Kg6 d5 g4 a4 b3 d3 e7 Kd4 e8R Ke3 f5 c5 b6 d4 b4 c4 b5 a3 f6 a2 f7 h3 g5 d2 b7 d3 b6 h2 Na3 h4 Re6 h3 Nb5 Ra5 Na7 Na6 b8Q Kf2 b7 Rh7 Rc1 a1B Ne2 Bd6 Nc6 Nc7 Qa7+ Bd4 b8Q c3 Nb4 Nb5 Rb1 Na3 Nd5 Ba6 Nc1 Qb6 f8Q+ Rf7 Ne3 Ne7+ Kh6 Ng6 Qfe7 Rc5 Rg1 h1B Nb3 h2 Be2 Bhb7 Na1 h1B Re1 Bhd5 Bf3 e4 Re5 Rf5 Kh7 Rc8 Rb3 Rc7 Qb1 d1B Qd8 d2 Bg4 Nf4 g6 Rg5 g7 Ng6 g8B Bf3 Rb5 d1Q B8e6 Be2 Rb4 Beb5 Bd7 Qf3 Qab8 Ba4 Qa2 Qf5 Bd1 B4b5 Re6 Bg3 Re5 Bf7 Rb1 Be8 Rb4 Bd5 Qb7 Bf1 Qc6 Bb7 Qb5 Bfc4 Ra4 Bd3 Ra8 B3c4 Rb8 Bf1 Qa4 Bfa6 Qb5 Nf8+
r4r1b/B1RNB1Rq/N3b2Q/1n1k3n/r1rP1r2/1q2K1p1/4B1p1/B1r2QQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 b4 c5 h4 f5 e4 g5 e5+ Kd5 h5 a5 h6 a4 e6 f3 b6 c3 b7 c4 h7 a3 b5 f4 b6 c2 e7 a2 e8Q c3 Rh5 g3+ Ke1 g2 Kf2 Nc6 b8B Qe7 b7 Bg7 Bd6 Be6 b8B Nf6 Qf8 Na7 Nd2 Nb5 Bb2 c1R Ne4 c2 Be2 Rg8 Ba7 Bh8 Rh4 g4 Nc5 Nh5 Na6 Qd7 Qg7 Rgf8 Be7 Qb7 Rb1 a1R Qf1 Ra4 Ba1 Qc7 Rb3 Qc4 Rc3 Qb3 Bd1 Ke4 Rc7 Kd5 Ke1 f2+ Kd2 f3 Be2 Rf4 Qh6 g3 Rg4 Rff8 Rg7 Rf4 Nh3 Rff8 Ng5 Rf4 Qg1 f1Q Nf7 f2 Ne5 Rff8 Nd7 Rf4 Qh2 Qh1 Qg1 f1R Qf6 Rb1 Qf8 c1R Qf6 Rcc4 Qf7 Qc2+ Ke3 Rbc1 Qf6 Qh2 Qh6 Rff8 Qf6 Rf4 Qf7 Rg4 Qff1 Qb3+ Bd3 Rgf4 Rg4 Bg7 h8Q Nf6 Qh7 Bh8 Rg7 Qh5 Qg6 Qh7 Qh6 Qc2 Be2 Nh5 Ba3 Qa2 Be7 Qb3+
K2B4/1rnB1bRQ/k2N4/2R1rqb1/2NpnN2/4QbPQ/rp3r2/N3b1b1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 h5 c4 d5 f4 Kd7 a4 Kc7 g3 Kb6 g6 e5 g7 h4 a5+ Ka6 f5 b5 f6 e3+ Kd3 h3 c5 b3 c6 b2 f7 e2 c7 e1B Ne2 h2 Rg1 h1B Qb3 b4 Nf4 Bf2 Bh3 Bf3 Bd7 Be7 f8Q Nf6 g8Q Rh5 Nd2 b1R Qh6 Qf8 Qgh7 Bd8 Qc3 b3 Ra4 Rg5 Qh3 Ne4 Rf1 b2 Rc4 Qf5 Rc5 Bg1 Nb3 Ra7 Na1 Rb7 Bd2 Rh5 Be1 Bg5 Qd2 Rc1 Qe3 Rc2 Bb4 Rf2 Ba3 Ka7 a6 Kb6 a7 Na6 a8N+ Ka7 Bc6 Be6 Nb6 Bg8 Nc4 Bf7 Nd2 Kb6 Bb5 Ka5 c8N Nc7 Bd7+ Ka6 Bb4 Nb5 Nd6 Nc7 Kc2 d3+ Kb3 d4+ N2c4 d2 Ka4 d1R Ba5 Rd3 Bb6 Ra3+ Kb4 Nb5 Bd8 Ra2 Rc1 Nd2 Rc3 e4 Rb3 Rh6 Rc3 Re6 Rc7 Re5 Rc2 Bd5 Kc5 Bg8+ Kc6 Bf7 Qd3 e3+ Qe4 e2 Rc1 B3h5 Qe3 e1B Rc2 Ra7 Rc1 Ne4 Rb7 Na3 Kc7 Bd1 Kb8 Nb5 Rc7 Rb7+ Ka8 Nbc3 Rc5 Nd5 Rc3 Bf3 Rb3 B3h5 Rbb5 Bd1 Rc7 Bdh5 Rbc5 Bf3 Ba4 Be6 Rg7 Bf7 Bd7 Nc7+
n4qn1/1k1KN3/2r1nRb1/4nN1R/RPb2r1Q/b1Qp2B1/B3pb2/Q2n1R2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 c4 d5 g5 Kd7 b6 Kc6 g6 d3 Kc3 e3 c5 e2 g7 e1B+ Nd2 d4+ Kc4 a4 b3 e4 b7 h3 f5 h2 f6 a3 f7 a2 Ne2 e3 Nc3 e2 Bb2 h4 Nd5 h3 Bg2 Ra6 Nf1 d2 Ng3 d3 Nf5 Nd7 b8R Bf2 Rf1 h1N Rb5 h2 Be5 Rh4+ Bf4 Bd6 f8R Nb6+ Kb4 Na8 Rf6 Be6 Nde7+ Kc7 Bd5 Rc6 Ka5 Qb8 Bg3 Rf4 Qc1 d1N b4 Be5 Ka4 Bb2 Ra5 Qe8 Kb5 Ba3 Ra4 Qf8 Qb2 Nh6 g8Q Kb7 Qh8 Ng8 Qh4 Bf7 Rc1 a1N Ba2 Nb3 Qa1 Bg6 Rc4 Nb2 Rd4 Nc4 Rd5 Ne5 Ne3 Nf3 Rh5 Ne5 N3f5 Nd4+ Ka5 Ne6 Kb5 Ra6 c6+ Ka7 c7 Kb7 Bc4 Rc6 Bb3 Bc5 Bc4 Nf2 Ba2 h1B Bc4 Bd5 Ba2 Ra6 c8Q+ Ka7 Rh8 Nd1 Rh5 Bf2 Qcc3 Kb7 Rh1 Nd4+ Kc5 Bc4 Rf1 Ra5+ Kd6 Rc5 Qh3 Ne6 Qh4 Ng4 Kd7 Rc7+ Kd6 Rc6+ Kd7 Ne5+
1K1Bb1r1/bN2n1Nq/4R3/2nr4/1p1rp1rR/1R3nQB/1R4NP/n1k1rQ2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 e3 Kd3 b3 Ke4 Kf7 Ke5 Kg6 a4 Kg5 d4 c5 f3 b5 a5 b4 a6 c4 d6 b2 d7 c3 d5 c2 d6 g3 a7 g2 Ra6 Qc7 d8R Rh5 Nd2 b1R Ne2 g1R Nc4 Bd7 Nf4 e2 Na5 e1N Qe2 Be8 Qf2 Nd7+ Ke6 Rb8 a8R g6 Kd5 e5 Bh3 Rb7 Be3 c1N Bb6 Nb3 Rac8 Rb8 Nb7 Na1 Ra2 Qc2 Rc3 Bg7 Kc6 Ne7+ Kc7 Ra8 Nd5 Ra6 Ne3 Kf4 Rc8 g5 Rb2 Qh7 Rcb3 g4 Ba5 g3 Qg2 Nf8 d7 Rd6 d8N Ne6+ Kb8 Rh4 Qf2 g2 Rcc2 Rd5 Rc4+ Nd4 Bc7 Nd3 Bb6 Rgd1 Re1 g1R Bc7 Bh6 Ba5 Rg8 Ng2+ Kg5 Bb6 Rd2 Re4 Re1 Rc6 Bg7 Rg4+ Kf5 f4 Ke4 Ne6 Rdd1 Qf1 Nf3 Bd8 Bf6 Ng7 Kd4 Ka7 e4 Re6 Be5 Ka8 Bc7 Ka7 Bb6+ Kb8 Nc5 f5 Ne5 f6 Rd3 Rg5 Rg4 f7 Rdd1 f8Q Rd2 Q8f4 Nf3 Re3 Rd3 Rh5 Kc3 Rc2+ Kb3 Rh4 Ka3 Qg3 Kb3 Rc3+ Kb2 Rc2+ Kb1 Rf2 Kc1 Rb2 R3d4 Reb3 Ba7+
1q1R2bB/1bbn3K/Q1b5/3pp2B/RQ3NBN/2R1n1k1/BrP1b3/3r1b1q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 b5 g4 e5 a4 h5 f4 d3 a5 d2 a6 b3 a7 b2 Rh3 b4 Bd3 b3 Ne2 Nh6 Qf1 d1B Nd2 b1Q Ra4 b2 Nf3 Bd6 Bd2 Bc7 g5+ Ke7 f6+ Ke6 g6 Ng4 g7 Ba6 f7 Ne3 Rg3 h3 f8Q h2 Qb4 h1B g8B+ Kf6 f5 h4 Bf7 h3 Ba2 h2 Nf4 Be2 Bb5 d6 Be8 Nd7 Bh5 Rb8 a8B Qe1 Bb7 b1B Bc8 Rg8 Rh3 Rg1 Rg3 Bg2 Bc1 Bh3 Nh4 h1B+ Rf3 Kg5 f6 Rb7 f7 Rb5 f8R Bb7+ Bd5 Ba2 Re8 Nb8 Bcg4 Nd7 Ba3 Qb8 Rd8 Qd2 Qa1 Rd1 Bc1 Bhf1 Ba3 Ng2 Rc3 Qe1 Bc1 Kh6 Kf5 Ne3+ Ke6 Kg5 Kf7 Bac4 Kg8 Be4 Bdf7 Bec6 Kh7 Rb6 Qba3 Rb2 Qb4 Qd2 Bfe6 Qd5 Bd2 Qh1 Be1 Bca6 Ba2 Bac4 Bf2 Bf7 Bg3 d5 Bf2 Nf5 Bc5 Be6 Bf8 Ne3 Bg7 Bf7 Bh8 Be6 Nhg6 Bf7 Nf8 Kh4 N8g6+ Kg3 Nh4 Rd3 Qd1 Rd4 Qd3 Be6 Qdb5 Rd1 Qa6 Bg8+
2KbrN1n/4k3/3bNR2/2pBrR2/p3B3/1bbnRQ1r/1Pr4Q/b2R1qB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 c5 d4 f5 h4 a5 e4 g5 h5 f3 Ke3 g3 e5 f4+ Ke4 g2 e6 g4 Ke5 f2 e7 f3 h6 g3 d6 a3 d7+ Kf7 Kd6 a4 h7 a2 d5 Qe8 Kc7 Ba6 d8R Nh6 d6 Bc4 d7 Bb3 Bd3 f1R Be3 f2 Rh5 Nc6 Nd2 Ne5 Ngf3 g1B Be4 g2 Nh4 Re1 Ndf3 f1R Nd4 Nd3 Ne6 Bf2 Ng6 Bh4 Bg1 Rf2 Rf5+ Bf6 Rc8 Rc2 d8R Qb5 Re8 Qa6 Rc1 a1B Qf3 Qb5 Bd5 Re5 Rd1 Bg7 Ngf8 Rb8 Bf2 g1B Be3 Bh2 Bg1 Ra8 Rb8 Qc4 Rb4 Qb5 Re4 Bg3 Re3 Qa6 Rc8 Qc4 e8B+ Ke7 Bb5 Nf7 Bbc6 Bfh4 Rd8 Bgf6 Rd6 Re8 Kb7 Qf4 Be4 Bh2 Bcd5 Bhg5 Qh1 Qf1 Qf3 Bh4 Kc7 Be1 Rc6 Bc3 Kb7 Rg8 h8Q Rg3 Qh4 Rh3 Qhf2 Bf4 Qh2 Nh8 Rb6 Ba5 Rd6 Bd8 Kc8 Bh4 Ng5 Be1 Rdf6 Bb4 Nge6 Bc3 Bc6 Rd5 Ba8 Bd6 Bb7 Re5 Ba8 Qe2 Bad5 Qf1
1B1q1B2/2Bbb1b1/1Q4n1/QbpRnp1k/Q2n2rr/n1P3bR/6B1/KN4N1 w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 g4 f5 d4 Kf7 Kd2 Kg6 Kc3 c5 b4 h5 Kb2 e5 g5 a5 b6 h3 b5 h4 b7 h2 b6 h3 d5 a4 d6 e4 d7 f2 Na3 e3 Qe2 Nc6 b8Q Nd4 b7 Rh4 Ra2 Ne7 Bg2 f1N Qc4 e2 Nb1 e1B Qc7 a3+ Ka1 Bg3 b8B Ne3 Ba7 Kh5 Qb5 Nc4 Be3 Ng6 Qbb6 Be7 Bb8 Ra4 Bf4 Ba6 Bd6 Bb5 Qca7 Rg4 Qaa5 Rb4 Rb2 a2 Rb3 Na3 Rd3 Bf6 Bf8 Be7 Ne2 Rc4 Rhd1 h1N Ng1 h2 Re3 Ne5 g6 Nf2 g7 h1B g8Q Nh3 Rf3 Ra4 Qb3 Nf4 Re3 Rc4 Qba4 Nfg6 Rc3 Ndc6 Rd5 Nd4 Kb2 a1B+ Ka2 Qe8 d8B Qd7 Bdc7 Qd8 Bh3 Bf3 Bg2 Be2 Rd3 Bd7 Rf3 Rb4 Rb3 Beb5 Rf3 Bb2 c3 Bc1 Rd3 Bh6 Ka1 Bg7 Rf3 Rh4 Re3 Ne6 Red3 Rbg4 Re3 Nd4 Rd3 Be1 Rh3 Bg3
2Rn1N1b/1Q1bbBR1/1K1k2p1/P2b4/q4r1r/p2N3Q/4bQ1B/Nqn1bQ2 w - - 0 1 illegal: No proof kernel
4b3/2qQn3/nrRn1p1b/p1bB1RQN/2b1P1QB/8/2Kn2bk/RRN3r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kf6 h4 Kf5 b4 d5 b6 a5 e3 g5 b5 f3 b7 g3 c5 Kg4 e4 d3 b6 g2 c6 Kg3 c7 f6 h5 f2 h6 d4 h7 g4 Nh3 g1N Ra2 Ne7 Qc2 Rg8 h8Q Bd7 c8R Bh6+ Kd1 d2 Bc4 f1B Qh7 Nf3 Nf4 Ra6 Nc3 Qc7 Ra1 Be8 Na2 Bg2 Rf1 Kh2 Bd5 g3 Qc5 Rg5 Kc2 d1N Bd2 Nb2 Nh5 Nc4 Be1 Nfd2 Nc1 Nd6 Qf5 Rg8 Qd7 Rg7 Rf5 d3+ Kc3 Bf1 Kb2 g2 Bh4 g1B Qe3 Bh3 Qg5 Bg2 Qg4 Bc5 Kc3 Nbc6 b8Q Nb4 b7 Rb6 Qa8 Na6 b8R Nb3 Qac6 d2 Qb5 d1B Kd3 Be2+ Kc2 Bc4 Rb7 Qd8 Rcc7 Nd2 Rc6 Bb4 Qc5 Qc7 Qe3 Bc5 Qeg5 Rb1 Ra7 Rb8 Rb7 Rg6 Rb4 Rb6 Rbb1 Be3 Qf3 Bc5 Qge3 Bh3 Qff4+ Rg3 Qg4 Rg1 Qeg5 Bg2
2n3NQ/nn3b1b/kbBnNp1b/pR6/qB1P3R/1rrB4/3B4/n3R1KQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 a5 e4 h5 d4 c5 b4 Kc7 e5 Kb6 g5 f3 g6 c3 g7 f6 e6 c4 e7 h3 e8Q c2 Qd3 c3 Qeg6 h2 Qd2 h4 Qg4 h3 Ra2 Nc6 Qe2 Bf5 Qc4 Rc8 Qb3 Na7 Qf4 Qd7 Ne2 Ne7 g8B Bh7 Bd2 c1B Qh4 c2 Bd5 Rc3 Ra1 Nec8 Bc6 Bc5 Nf4 Re8 Qa3 Ree3 Bd3 Qe8 Re1 h1B Ne6 h2 Qa4 Rb3 Nc3 Qd7 Kf1 f2 Qa2 B1e4 Qb1 h1N Qh2 Bg8 Qh8 Beh7 Kg2 f1N Kg1 Rh3 Re4 Nhg3 Rh4 Ba3 Qe1 c1N Qe4 Ne3 Qh1 Nc4 Rb1 Na2 Re1 Nc1 Bg2 Ne4 Nd5+ Kb7 b6 Ka6 b7 Bf8 b8B Bf7 Bd6 Nc5 Ne7 Qa4 Bc6 Nb7 Ng8 Bh6 Be7 Rc3 Bf8 Nb3 b5+ Kb6 Be7 Na1 Bb4 N4d6 Nf8 Kc7 b6+ Kb8 Ne6 Rb3 Bbc3 Bc5 Bb4 Rf3 Ba6 Rfc3 Bd3 Nd8 b7 Bb6 Nf4 Kc7 b8R N8b7 Ba6 Bc5 Bd3 Kb6 Ne6 Ne7 Bb1 Nec8 Bc2 Ka6 Bb1 Nd8 Rb5 N8b7 Bd3 Bb6
QnRbN2b/3K4/nk1p1r2/3QBr2/n2NR1b1/1pP2bq1/4B1Q1/1n1R2bR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 b5 Ke4 g5 Kd5 g3 a4 g2 f4 g4 h4 d3 a5 d6 a6 Kd7 a7 Kc7 c3 d2 h5 b3 h6 b2 h7 e4 f6 e3 f5 g3 f7 e2 f6 e1N Be2 b4 Bd3 b3 Bg6 Bg7 f8R Nd3 f7 Qh4 Re8 Kb6 f8Q Nc5 Nf3 g1B Bd3 g2 Na3 b1N Be2 Bg4 Nb5 Nba6 Re4 Na4 Nfd4 Qg3 Qff1 Rf8 a8Q Rf5+ Ke6 Ne7 Kd7 Rhf8 h8R Nc6 Nc7 R8f6 Rc8 Bh8 Ne8 Be3 Qf3 g1B Qdf1 d1B Q1g2 Bh6 Bf4 Bg5 Be5 Bh4 Qd3 Bg5 Bf1 Bdf3 Be2 Re6 Qc4 Bd8 Qd5 Rg6 Bd3 Rgf6 Be2 Nd2 Rc1 Nb1 Rd1 Ncb8+
4BN2/4nQQb/NP3r1p/2nKp2n/Q1nn1BNk/2N1qR2/3n1b2/r1Rq4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 c4 a5 b4 d5 c5 a4 f5 Kg5 c6 e3+ Kd3 a3 f6 h3 b6 h6 c7 a2 f7 h2 b5 Nd7 b7 Ne7 b8N Nc5+ Kc2 d3+ Kc3 d2 b6 e2 Na6 e1N Na3 d4+ Kc4 d3 Rb1 a1N Rb3 Nec2 Nh3+ Kh4 g5 Bf5 c8Q Nd4 Qb7 Bh7 g6 Qd6 Rg1 h1N g7 Ng3 g8Q Nh5 Nb1 Qf6 Qa7 Qf3 Qg7 Qe3 Nc3 Rg8 Ra3 Nab3 Nf2 Rh8 Qf3 d1N Ng4 d2 Bd3 Rg8 Bg6 Rh8 Qd7 Rg8 Qa4 Nb2+ Kb4 d1Q Qf1 Qee2 Bf4 Qe3 Qc4 Nd2 Qe6 Qde2 Rc1 Qd1 Qa2 Nbc4 Q2b3 Nef5 Qa2 Bd6 f8N Ne7 Be8 Ra7 Qf7 Rg6 Qg7 Rf6 Q2b3 Na5 Qbf7 Nac4 Ne4 Qee2 Rf3 Qe3 Nc3 Na3 Nb8 Ra5 Na6 Nac4 Qb3 Ra2 Qa4 Ra1 Bd7 Nce6+ Nc5 Ndf5 Bc8 Qd4 Bd7 Qf2 Kb5 Qfe2 Na6 Bc5 Be8 Bf2 Kb4 Qe3 Kb5 Nc8 Kc6 Nfd4+ Kd5 Nc5 Qb7 Bb1 Qa7 Bh7 Qaf7 Ne7+
1K6/1NrbRBN1/p1r4r/brrQNBNR/bkb3QP/3p4/1B3n2/4n1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 f5 h4 g5 e4 g3 b4 g2 b6 f3 Kb5 d3 c4 d2 b7 f4 Ra3 a6+ Ka4 g4 b5 Kc5 b6 d5 Ka5 d4 e5 g3 e6 f2 e7 f3 e8N Rh6 Bd3 f1R Ng7 f2 Bb2 Bd7 Bf5 Ra7 Nc3 Nf6 Nh3 g1R Qg4 d1B Nb5 g2 Nd6 Ne4 Ng5 B1a4 Bg6 Qc8 Bf7 Rb1 Rg3 Rgc1 Re1 g1R Ra3 Ng3 Re7 f1B Rb3 Ne4 Rb5+ Kc6 Rf5 Nf2 c5 Bc4 Rfe5 d3 Rd5 Bf5 Rde5 Nd7 b8Q Qe8 Qd8 Rc7 b7 Bfe6 Rf5 Ne5 b8N+ Kd5 c6 Kc5 Qd7 Rc3 Qd8 Rgc1 Qd7 Qc8 Qd8 Qb7 Qd7 Qa7 Qd8 Rc8 c7 Bed7 Nc6 R3c2 Bd5 Nf3 Ne5 Ne1 Bf7 Rb8 c8B Rb7 Nh3 Rc7 Rh5 Qa8 Ng5 Qh1 Nc6 Qg1 Ne5 Bdb5 Bf5 Bd7 Re6 Be7 Qa8 Bd8 Nb7+ Kd5 Kb6 Rc5+ Ka7 Ba5 Ba3 Rbb5 Kb8 Rc7 Ne4 Kd4 Ng5+ Kc3 Bb2+ Kb4 Re7 Re2 Ng6 Re6 Ne5 Rc2 Qa7 Rec6 Qad4 Rcc5 Qd5 Re2 Ng6 Re6 Ne5 Rec6
1brrN3/qR2QPQR/r2rNb2/2R2p1Q/k3n1b1/1pQ4B/1Bn2b2/3r2K1 w - - 0 1 illegal: No proof kernel
3R1Q2/2kbnp2/4Q1n1/q2Bb1p1/1Rr1r1n1/1BQ1b2N/1nK1Q2P/B2b2bN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 g5 c4 d5 e4 Kd7 e5 a4 b6 g3 b5 f3 b7 g2 b6 a3 e6+ Kd6 c5+ Kc6 e7 a2 e8Q+ Nd7 b8Q d3 b7 d4 Qg3 f2 b8Q Rh4 Bb2 Qa5+ Nc3 Re4 Qe2 Ne7 Rb1 a1B Nh3 g1B Bg2 f1N+ Kc1 d2+ Kc2 Bg7 Nd1 Be5 Ndf2 d1N Qc3 Bf4 Qbb4 Kc7 c6 Ne5 Qbc4 Bc1 Qe6 Bd7 Qf8 N5g6 Bf3 Be3 Bg2 Rf4 Bd5 Re4 Bb3 Rb8 Bd5 Rb4 Bb3 Kb6 c7+ Kb7 c8B+ Kb8 Qec6 Rc4 Qe6 Kc7 Ba6 Qa3 Bb7 Qa5 Ba3 Nb2 Bd5 Nd2 Bc5 Nf3 Bb4 Nfe5 Ba3 Na4 Bb2 Ng4 Nd3 Bgf2 Rhd1 Bg1 Ndf2 Qb5 Nh1 Qa5 Ba3 Nb2 Ba2 Nd3 Rb4 Nb2 Bb3 d3+ Kb1 d2 Qcd3 Na4 Bb2 Nc3+ Kc2 Na4+ Bc3 Bb2 Ra1 Qc5 Ra2 Nb6 Ra5 Na4 Ra8 Qa5 Rd8 Ba3 Rbb8 Bd6 Rb4 Bg3 Qd4 Be5 Qdd3 Rcd4 Ba1 Nb2 Qc3+ Rc4 Rb5 Qb4 Rbb8 Qa5 Rb4 d1B+
qQ2qn2/1Q2p1B1/1R1n1Rbr/4RB2/n1P1p2n/N1nr4/1K5b/2NkNn1N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 d5 c4 a5 Kc2 h5 b4 a4 b6 h3 b7 h4 g5 Kf5 g6 h2 b5 a3 b6 a2 g7 d3+ Kb3 h3 Qf3 d2 Qc3 Kg4 f5 d1N f6 d4 f7 d3 Bg5 d2 Qa5 Nf6 g8Q Bh6 f8R Nh7 Rf5 Ne3 Na3 d1N Rf8 Qe8 Qad5 Nc3 Ne2 Ng2 Kb2 Nh4 Ng3 Bf5 Bf6+ Kf3 Rb1 Bf4 Bg7 Na6 b8N Nc5 b7 Bg6 Nd7 Rd8 Rf6 Nf8 b8N Rh6 Nc6 Ke3 Rg1 h1N Na5 h2 Qb7 Kd2 Ne5 Rd7 Bh3 Rd3 Nd7 Bc7 Bf5 Bd6 Ne5 Bb8 Nh5 Ng3 Nb3+ Ke2 Rh1 Nf1 Nc1+ Kd1 Ng3 Bc7 Rg1 h1N Nf3 Bb8 Ne1 Bd6 Nh5 Bh2 Rg5 Nhg3 Qh8 Nge2 Ng3 Nd4 Nh1 Ndb5 Ka1 Nd6 Rb6 Bf4 Kb2 Be5 Bd7 Bh2 Re5 Na6 Kb3 a1Q Bf5 Nc5+ Kb4 Nfe6 Nb1 Qaa8 Na3 Qd7 Qhc8 Nf8 Qcb8 Na6+ Kb3 Nc5+ Kb2 Qd8 Qd5 Qe8 Qdb7 N5a4+
4Rn1N/4prrb/2RQ1Qn1/B2b4/pN2krq1/3nPR2/Qn2n2K/2rQ3B w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bc1 f5 h4 g5 Bh3 Bh6 Bg2 fxg4 Bf1 g3 Bg2 g4 Bf1 Bg5 hxg5 Qb6 Kd2 Qc7 Ke1 Qd8 f4 Kf7 c4 Ke6 b4 Kf5 g6 a5 b5 h5 b6 d5 c5 a3 e3 a2 b7 h4 g7 a4 c6 g2 Kf2 d3 c7 h3 Kg3 d4 Nf3 g1N Kh2 d2 Qb3 d1N Nh4+ Ke4 f5 d3 f6 d2 f7 Ne2 f8Q Nf2 Ba3 d1N Nf5 Qd7 Bb2 Nd3 Bf6 Rh7 Bc3 Nh6 g8Q Nf7 Na3 Nfe5 Nc2 Ng6 Ba5 Rf7 Rc1 a1R Nh4 N1b2 Nb4 Ra6 Qfg7 Raf6 Rc6 Rc1 Qd1 Rf4 Qf6 Qd4 Rg1 Bf5 c8R Nd7 b8Q Ndf8 Rg3 Qc4 Rf3 g3+ Kh1 h2 Qbd6 Qe6 Re8 Qd7 Bh3 Qc8 Kg2 Qe6 Bg4 h1B+ Kh3 g2 Kh2 g1R Bh3 Nge5 Bg2 Bh7 Ng6 Qg4 Nh8 Neg6 Qd8 Rf1 Qdd6 Rg7 Qa2 Rc5 Qh4 Rcf5 Qg5 Rff7 Qgf6 Rg1 Qdb3 Ra1 Qd1 Rc1 Rg3+ Qf3 Qc3 Kf5 Qcd4 Qg4 Bf3 Bg2 Rh3 Bf1 Bh1 Bg2 Rg3 Be4 Rf3 Bd5 Q4f6+ Ke4
1N1Q4/1b1P4/2nr2rQ/N1q1QK1p/2N1b1pb/RB1k4/1Bn2R2/1Qr1rb1r w - - 0 1 illegal: No proof kernel
rb3R2/2pBQ3/3KR3/3n1NB1/rR1N1Npq/1r1QbP2/1bRn2bk/1r5b w - - 0 1 illegal: Other
4Rr1n/bNpR1b1r/2PQ1B2/2K5/2B2Qb1/2rpQn1b/5qrN/kB1r3B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 d4 exd4 Qd3 g6 Qf5 g5 axb5 gxf4 g5 Qf6 Qh3 Qd8 Qg4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 a5 h4 f5 e4 g3 h5 f3 h6 g2 h7 d6 g6 f4 b6 f2 b7 a4 b5 f3 b6 a3 g7 a2 Na3 d3 Bg5 d2 Nb5 d1R Bd3 Ne7 g8B d5+ Kc5 f1B c4 d4 Nd6 f2 Bb1 Nbc6 b8Q Ng6 b7 Qf6 Qa7 Bg4 b8Q d3 Be6 Nd4 Qb4 Nf3 Qd2 Bh6 Nb7 Be2 Qb6 f1B Qe3 Rhf8 h8Q Ra3 Bh4 Bg5 Qh6 Nh8 Bd5 Rc3 Bc6 Ke6 e5 Bh5 Qb4 Bf7 Bd5+ Kf5 e6 Bf4 Be4+ Ke5 e7 Bg3 e8B Bf2 Bb5 Qf5 Nh3 g1R Ng5 Bh3 Qb6 Rg2 Rg1 Qf4 Bd5+ Kf5 Qd6 Qg3 Rh1 Bg1 Qa4 Qf2 Ne4 Qe1 Bf6 Ng5 Qd8 Rf2 Bd7+ Be6 Bb5 Rc2 Kc6 Bhf1 c5 Rdc1 Qg3 Rh2 Qdd6 Bg4 Nd2 Rb2 Qa7 Qe3 Bg2 Nf3 Bc2 Rh3 Nb1 Ke4 Bc4 Qd4 Nc3+ Ke3 Qge5+ Kd2 Qf4+ Qe3 Rb1 a1R Nd5 Ra3 Rh2 Rc3 Bh1+ Bg2 Qb6 Ra2 Rb2 Rd1 Bb1+ Kc1 Re2 Qd2 Qa7 Kb2 Ne3 Ka1 Nf1 Bg8 Re7 Rh7 Rd7 B2h3 Re2 Bf7 Re8 Qe1 Qb6 Rg2 Nh2 Be3 Kb5 Qf2 c6 Bd4 Qbc5 Be3 Qce5 Ba7 Qee3 Bb8 Kc5 Ba7+
2b1n2N/1p1n2BQ/Kbkb2rP/Rn3B1N/N7/n2bQ3/pq5B/R1rB3b w - - 0 1 illegal: Other
1b1k1NQ1/pn3Kn1/q3Q2P/1NBB1q1p/2R1rN2/1b5b/2r1B2b/b1N1bR2 w - - 0 1 illegal: No proof kernel
1Q1K1R2/pP1R2Br/1n2r1R1/5N1n/1r1nnr1q/N2k2B1/2R1pb2/3BrbQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 b4 d5 c4 h5 c5 h3 g5+ Kf5 g6 d3 Ke3 h4 c6 h2 b6 h3 c7 d2 b5 d4+ Ke2 e3 Kf3 e2 g7 e1R b7 d3 b6 e4+ Kg3 e3 Bb2 Ke4 f5 Rh7 Kg4 Nh6+ Kh5 Bc5 Kg6 Qh4 g8R Nd7 b8B Ba6 b7 Nb6 f6 Nf5 c8Q Nd4 f7 Bc4 Qc1 d1R f8R d2 Ne2 Kd3 Ra2 Rh6+ Kg7 Re6 Kf7 Bb5 Rhg1 h1R R8g6 h2 Na3 Bc4 Qa1 Rb1 Bg3 d1N Qb8 Nc3 Bg2 Bb5 Bf3 Ne4 Bc3 Ba6 Rc2 Rb4 Rf1 Bc4 Rd8 Ba6 Rd7 Bb5 Rf2 Rhf1 Bg4 h1N Rff6 Rf4 Bb2 Rc6 Ke8 Re6+ Kd8 Bc4 Nc3 Bb5 Nd5 Bc4 Ne7 Ba6 Bh2 Nhg3 Nf5 Nh5 Bd1 Bb5 Bg3 Bc4 Kc7 Ba6 Qh8 Rae8 Rf8 R8e7 Kd8 Bb5 Qe5 Bc4 Qb8 Rh7+ Re7 Ne2 Bg7 Nd4 Qb1 Nb5 Bd4 Rh1 Rc3+ Kd2 Bg4 Be2 Rc2+ Kd3 Qe1 Rg1 Qf2 Re1 Qg1 Bf1 Bd1 e2 Bf6 Bf2 Bg7 Nef6 Ref7 Nd4 Rd7 Ne4+
r3n3/n1Rn2B1/N1r5/b3Kn2/r4BR1/1rBp1bQq/1Q1P1p1b/N2k1NN1 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c6 b6 Bh6 b5 Qf6 b7 Bg7 e3 Bf8 b6 Qd8 Bb5 cxb5 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 Kb4 g4 f5+ Kd5 a5 g5 h5 g6 h3 e4 h4 g7 f3 c5 f4 c6 h2 e5 h3 c7 a4 e6 f2 e7 f1N e8N f3 Ke4 d5+ Ke5 d4 Ra2 f2 Ke4 d3 Qe2 Kb3 Qf3 b4 Ke5 a3 Qh5 Rh6 Qg6 Ne3 Qf5 Qh4 Ne2 Nf6 Qf3 Nf5 Rc2 a2 g8N a1B+ Bb2 Ne7 Qf4 Bg4 c8Q Bf3 Nc7 Ne8 Qg3 Rc6 Rg1 h1N Nf6 h2 Bc3 Qh3 Nh5 Bb2 Qd7 Nc8 Qd4 Na7 Na3 Bc5 Na6 Nd7+ Kf4 Be7 b8B Bd8 b7 Ba5 Be5 Ba1 b8B Bb2 Qg4 Ng3 Bg7 Nf5 Nhg3 h1R Nf1 Ba1 Qg6 Bb2 Rg4 Rg1 Ne3 Ra1 Nf1 Ra2 Rc1 Ba1 Nc2 Ra4 Qb6 Bb2 Ng1 Ba1 Bcf6 Bd4 Qb7 Bdb6 Bc3 Bc7+ Kg5 Bh2 Na1+ Ka2 Bc7 b3 Bf4 b2 Qd6 b1R Qe5 Bd1 Qe3 Rb3 Qg3 Bf3 Rc2+ Kb1 Qb6 Nb8 Qd4 Ned6 Kf6 Ne8+ Ke5 Nh6 Rb2+ Kc1 Rc2+ Kd1 Qb4 Nf5 Qa3 Rd6 Qb2 Rdb6 Bb4 Rh6 Rc7 Rc6 Bc3 Nd7+
rN2Q1Bn/1br5/1b1Q4/3rR2q/nNk1ppB1/2n2P1b/2R1R2Q/K2nQ2b w - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 dxe4 Ba3 g5 axb5 gxh4 b6 Qd5 b5 Qd8 Bb4 cxb4 c4 Kd7 g4 Ke6 d4 a5 Kd2 f5 Kc1 h5 Kb2 b3 c5 Kd5 b7 e5 b6 a4 c6 h3 c7 e3 g5 f4 g6 h4 g7 a3+ Kc3 b2 Ra2 e2 Qe1 h2 Kb3 h3 Nf3 Na6 b8Q Qh4 b7 Nh6 g8B+ Nf7 Qa7 e4 b8Q Bc5 Ne5 Bb6 f3 Bb7 c8R Qh5 Nd7 Rh7 Rc2 Nc5+ Kc3 Rg7 Qe8 Na4+ Kb3 Rd8 Nb8 Rh7 Rg1 h1B Rg4 h2 Bh3 Bg2 Rg5+ Kd6 d5 h1B Be6 Bh3 Bg4 Nh8 Nc3 Kc5 Re5 b1N d6+ Kd4 Rab2 a2 d7 a1R Nd5 Nbc3 Nb4 Rd1 Qa5 Rg7 Qg3 e1N Qh2 Nd3 Re2 Re7 Rbc2 Nf2 Ka3 Rc8 d8Q+ Rd7 Qf6 Rdc7 Qfg6 Rd8 Qge6 Rd5 Qd6 Ra1+ Kb3 Nc5+ Kb2 Kc4 Qa8 Ra5 Qa7 Na4+ Ka1 Nd1 Qa8 Bg1 Qa7 Bf2 Qe3 Ra8 Qd2 Be3 Qe1 Bb6
3bNb1n/2r4Q/1nrn2QB/1nk1Br2/pp1R1NK1/1b3R1P/2b2NB1/2q4B w - - 0 1 illegal: No proof kernel
n1Q5/N2nbB1R/Rq1Q1n2/5r1P/1BQ2nb1/pN3rr1/kr3Np1/2K2Qb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Ke6 h4 Kd5 b6 Kc4 e4+ d3 b7 d5 c3 a5 h5 g5 e5 f5 e6 d4 b5 g3 b6 a4 e7 a3 e8Q g2 Qd7 f3 Ra2 g4 Qc2 f4 Kd1 f2 Qe2 Kb3 c4 d2 c5 g3 c6 f3 c7 Nf6 Qde7 Rg8 Q7e4 Bg4 c8N Be7 Rh3 Nbd7 Rh4 Rb8 Nh3 g1B Na7 g2 Rc2 Rg5 Bb2 Ka2 Rc7 Rg7 Kc2 d1N Nd2 d3+ Kc1 Ne3 Bc3 Ned5 Bb4 Nf4 Qe1 Rg8 Nb3 Rg5 Be2 f1R Qc4 f2 Bf3 Rg7 Bd5 Rg6 Bf7 d2+ Kc2 d1N Kc1 Ne3 Qd1 Rc8 b8Q Ned5 b7 N5b6 Qa8 Rg5 b8Q Rg8 Qad5 Na8 Qd6 Rg7 Qb7 Rb8 Qc8 Rb5 Rb7 Qb6 Rc7 Rf5 Rb7 Re1 Rc7 f1R Nf2 Re3 Rb7 Rfe1 Rc7 R1e2 Qf1 Rb2 Rb7 Be2 Rg4 Rf3 Rg6 Bd1 Rh6 Rgg3 Rh7 Qc5 Rb6 Be2 Ra6 Qb6 Ra5 Rd3 Ra4 Bg4 Ra6 Rdf3
8/2b2RRR/1K1R1rN1/2p1Pnnn/1QQ1pN2/2B2bbb/2Q1qk2/3rr1rB w - - 0 1 illegal: No proof kernel
2kBn1r1/1rN2B2/RQN4n/p5bb/1RR1q3/Qr3B1P/Bnb1p1n1/K4b2 w - - 0 1 illegal: No proof kernel
n5q1/b4r1R/1nr3Q1/pQ1BN1pb/PR2r1QN/1n1rb3/k2B2b1/2RKQ3 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 a4 Kd7 d4 Kc6 e4 f5 h4 a5 h5 g5 h6 b5 h7 f3 e5 Kd5 e6 f4 c6 b4 e7 c3 e8Q f2+ Ke2 Kc4 c7 b3 d5 c2 d6 b2 d7 Kb3 Na3 b1R Qh5 g3 Nc4 f3+ Kd2 g2 Qg4 Nf6 Qh4 Na6 Rh3 Bc5 Ba3 Qg8 d8R Nd7 Nb6 Rc1 Nc4 Nb6 Ne5 Bg4 c8Q Nc7 Bb4 Bh5 Qe4 Kb2 Be2 f1R Qcg4 f2 Rd4 Re8 Bc4 Nca8 Ngf3 g1B Qg6 Re6 Rf4 Be3+ Ke2 Rc6 Qe1 Rd1 Rc1 Rd3 Bd2 Ka3 Bd5 Kb2 Ra1 c1N+ Kd1 Nb3 Rc1 Ka2 Rb4 Qc8 Q6e6 Re8 h8Q Re7 Nh4 Qg8 Qg6 Ree6 Nd7 Re4 Qhf6 Bh2 Qff3 Bb8 Qff5 Ba7 Rh1 Rg1 Rh3 f1B Ne5 Bg2 Qd7 Rf1 Rh1 Rc2 Qb5 Rf7 Rf1 Rb7 Rf7 Rc6 Rh7 Rf7
R4B2/2B1Q1RB/Knbn1p2/r1N2P1n/3k3n/bR2b3/2rNB1Qp/2rq1r2 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 Kd7 f4 Kd6 c4 Kc5 g4 h5 b6 a5 f5 e5 d3 e3 g5 a4 b7 f6 g6 e4 g7 h3 Nd2 h2 Ba3 h4 Qe1 h3 Rd1 Nh6 g8B Kd4 c5 b3 c6 b2 c7 b1R Bh7 Rb5 Qh4 Nf7 Qg3 Nd6 Qf2 Nd7 b8B Bb7 c8R Nb6 Rc2 Bc6 Bc7 Rc8 Rb2 Rg8 Rdb1 Rg2 Ra2 Bh6 Bb4 a3 Rb3 Bf4 Ra1 a2 Ba3 Ndc4 Bf8 Nd6 Nb1 Bh6 Nc3 Qd7 Na4 Qd8 Re1 a1B Nc5 Bb2 Ra1 Bg5 Ra8 Ba3 Kd1 Bh6 Kc2 Qd7 Qd2 e2 Qg5 e1R+ Be2 e3 Nf3+ Kd5 Kc3 Rf1 Rg1 h1N d4 h2 Qg7 Ng3 Nd2 Nh5 Qg4 Rgf2 Qh3 Rc1+ Kd3 Rff1 Rg7 Re8 Qg2+ Re4 Bg4 e2 Bf3 Be3 Bg4 Rb1 Kc3 e1N Be2 Nf3 Kd3 Ra5 Kc3 Nh4 Kd3 Bc1 Kc3 Ra2 Kb4 Rc2 Ka5 Ba3 Ka6 Rbc1 Na4 Nb7 Nf3 Bh6 Nc5 Bd2 Rd3 Kc4 d5 Be3 d6 Qd8 d7 Re5 Na4 Rb5 Nc5 Qc8 d8Q Qd7 Qe7 Qd4 Bd1 Nd6 Be2 Kd5 Rc3 Qd1 Nd2+ Kd4 Rb3 Ra5+
3N1R2/4r3/QrrbP3/Npk1nB1N/3p1Qn1/2b1B1K1/3nbnB1/2BRqr2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 c4 Kd6 a4 g5 e4 f5 h4 f3 h6 f4 h7 g4 h5 b3 h6 b2 e5+ Kc5 a5 d5 e6 d3 a6 d2 a7 Qa5 Rh2 Nd7 Na3 b1R Bd3 Rb6 Qa4 Ne5 Nh3 Nf6 Bf5 Bd6 Rh1 Rf8 h8N Re8 h7 Re7 Rd1 Rc6 Nf7 Rb8 h8B g3+ Kg1 b5 a8B f2+ Kg2 f1R Nd8 Nfg4 Bg7 Rbb6 Bh6 Bb7 Ra2 Kd4 c5+ Qb4 Nc4 Qa5 Re1 d1N Rf2 Qc3 Rf3 Ndf2 Qa6 Qe3 Na5 Qe2 Rd1+ Qd2 Bd3 Qe1 Bg5 Rcc7 c6 Kc5 Bh6 Rc8 c7 d4 Be2 Bd5 Bd3 Bc4 Bde4 Be2 Bd3 Rcb8 c8Q+ Rc6 Qc7 Rb6 Ng1 Nh1 Kh3 g2 Bf5 Nhf2+ Kh4 Ned3 Nh3 g1B Bg5 Nde5 Be3 Nfd3+ Rf2 f3 Nf4 Bh2 Kh3 Bg3 Nh5 Bf4 Bc1 Bd2 Be3 Bc3 Kg3 Qd2 Rh2 f2 Qb8 Qe1 Rh4 Nh6 Rf4 Nhg4 Bb7 Rc8 Bg2 Rcc6 Bg6 Rg1 Rf8 f1N+ Kh3 Nd2 Bf5 Ndf2+ Kg3 Rf1 Qc7 Re8 Qf7 Re7 Qf6 Rg1 Qg5 Rh1 Qf4 Rf1
n1r2k2/3n1N2/2P1Q3/Bnq1RB1R/1Qbp2n1/3b1pNr/3K2Q1/brb2R1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 a5 g4 f5 b4 h5 c5 a4 c6 d3 g5 f3 e5 h3 b6 d4 b7 h2 g6 h4 b5 f2+ Kd2 a3 b6 a2 e6 h3 g7 f4 e7 f3 Qb3 Qd5 Qb4 Nd7 b8Q Qc5 b7 Nb6 Nc3 Nf6 g8R Nfd7 Rb1 a1B Be2 f1B Rg5 Bh6 Qg3 Kf7 b8Q Ba6 e8R Bc4 Qbd6 Rc8 Re6 Na8 Nb5 Rh7 Qd5 Kf8 Re5 Rh8 Nd6 Rh7 Kd1 d2 Rh5 Be3 Kc2 d1N Bd3 Nc3 Qg2 Nb5 Bf5 Bfd3+ Kd1 Bf4 Ne2 Rh6 Ba3 Bc1 Nf7 Rh8 Rf1 h1N Qe6 h2 Ng3 Nf2+ Ke1 h1R Bb2 Ng4 Bc3 Ba3 Kd2 Rh7 Qb2 Rh6 Ba5 Rh7 Qb4 B3b2 Rg5 R7h3 Rh5 Ba3 Rf2 Rc1 Rf1 B3b2 Rh1 Rg1 Rf1 Ba3 Rf2 Rb1 Rff1 Bc1+
QKN5/4QN1Q/2P1B3/bbn1B1rR/p1n2N2/1kbr1n2/5p1r/nqr1R2N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 f5 h4 g5 b4 d5+ Kb3 a5 Ka4 d3 c4 d2 e4 d4 h5 g3 h6 f3 b6 f4 Kb5 a4 h7 g2 e5 f2 c5 Kd5 b7 d3 c6 g4 e6 g3 e7 f3 e8N Bg7 Qe2 d1R Nd2 Bc3 Rh6 Ne7 Nb1 d2 Nh3 g1N Bb2 g2 Nd6 Na6 b8Q Nc5 Qc7 Ra5+ Kb6 Ba6 Ka7 Nc8+ Kb8 Nb6+ Nc8 Bb5 Qee7 Rc1 Nf4+ Kd4 Rh4 d1R Nd2 Nc4 Ne4 Rd3 Ng3 Qd6 Rh2 Qg6 Rh5 Qe4 Be2 f1N Nh1 Nfe3 Qb7 f2 Bg4 Nf3 Be6 g1B Rb1 Bh2 Ba1 Rg8 h8N Rg5 Nf7 Nc2 Bb2 Na1 Qbc7 Ba6 b5 Qg6 b6 Bb5 b7 Rg2 Bd7 Bg3 Be6 Rh2 Nh6 Qe4 Qh7 Bh4 Nf7 Bd8 Qe7 Ne3 Nd5 Kc4 Nf4+ Kb4 Ng3 Nc4 Nh1 Rc2 Rc1 Kb3 Rf1 Rc1 Re1 Bb4 Bh8 Bc3 Be5 Ra6 Bf6 Bda5 Be5 Rb6 Ka7 Qg6 b8Q Rb7+ Ka8 Rbd7 Qb7 R7d5 Kb8 Qg1 Qa8 Qf1 Bc7 Rg5 Be5 Qg1 Re2 Qd1 Re4 Qc2 Re1 Qb1
B1n1r1N1/3Kbp1n/kn6/4Q3/B2B1B1r/N2R3Q/br1p2qP/1rRn1N1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 d5 b4 Kd7 c4 Kc7 e4 Kb7 b6 g5 b5 a4 c5 f3 e5 g3 e6 g4 e7 f2 e8B g2 Nd2 g3 Qb3 a3 Qa4 a2 Qa3 Be7 Bb2 Rh4 Ne2 g1R Nb1 g2 Ng3 Be6 Qb3 Nd7 Na3 Rb8 Rc1 a1R Be2 Rf1 Bf3 Re1 Nf1 g1N Rd1 Rb1 c6+ Kc8 c7 Kb7 c8N Nh3 Rg1 Ng5 Rg3 Qc7 Rc1 Nh7 Rh3 Qg3 Ba1 Bd6 Ne7 Qg2 Qc3 Re2 Be4 Reb2 Qc8+ Ka8 b7+ Ka7 b6+ Ka6 Qc3 Rc8 b8Q Bc5 b7 Nb6 Bd7 Re8 Qe5 Bd6 b8B Bb4 Nf5 Ne7 Nh6 Nec8 Ba4 Be7 Ng8 Rb5 Kd2 d3 Ke3 d2 Kd4 d1N Rd3 R5b3 Bd6 R3b2 Kc5 d4 Kc6 Ba2 Kc7 Ka7 Ba8 Ka6 Ng3 f1B Qb3 Be2 Nf1 Bf3 Qbe6 Nc4 Qh3 Be4 Kd7 Bf3 Rb3 d3 Bc7 d2 Rd3 Rb6 Bd4 Rb7 Qe1 R7b2 Bf4 N4b6+ Kc7 Qg7 Qe4 Bh1 Qe5 Nd5+ Kc6 Qg2 Kd7 Ndb6+
2bRNBr1/1r1RQp2/1r1n2nB/1k1b1n1B/1b2q1P1/rN3Qnp/K5Q1/1Q6 w - - 0 1 illegal: No possible last move, all moves rejected
1b1rbk2/1Q1BRp2/nNQb1nQ1/3N2q1/p3Pr2/1rrb1Rn1/1B3R2/KR6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 d5 e4 g5 h4 d3 Kc3 f3 Kb2 g3 c4 a4 h5 g4 h6 g2 h7 d2 c5 f2 b6 g3 c6 d4 c7 d3 b7 Qd6 b5 Qg6 b6 Ra6 Rh2 Bd6 Ra3 Nf6 Nh3 g1B Qh5 d1R Ka1 g2 Nd2 Qg5 Qg6 Kf8 Nf4 Bd7 c8Q+ Be8 Nc4 d2 Rf3 Ra7 Qc5 Na6 b8R Rc7 b7 Rc6 Bd3 f1N Nd5 Ng3 Ncb6 Rf1 Bb5 d1B Bb2 Be2+ Qc1 Rg8 h8R Rc3 Bd7 Bd3 R8h6 Rf2 Qc2 Rb3 Qc6 Rc2 Rh8 Rcc3 R8h5 Be3 Rh6 Bef4 R6h5 Qg4 Re5 Qg5 Re7 g1R+ Bc1 Nh1 Rhf2 Rg4 Bb2 Ng3 Ra8 Rc5 b8Q Rcc3 Qbb7 Bb8 Ra7 Bfd6 Ra8 Nc7 Ra5 Rf4 Rb5 Na6 Rb4 Be2 Rd4 Bc4 Rd1 Bd3 Rb1 Rh8 Qh6+ Kg8 Be6 Bd7 Qh5 Kg7 Bg4 Rd8 Qg6+ Kf8 Bh3 Be8 Bc8 Rb4 Bd7 Rbb3
2NR1qkn/3Rpb1n/1K2B3/2rnR1B1/4BPNQ/Qpb2n2/3R3b/rr5r w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 h5 Kd4 c5+ Kc4 h3 Kb5 e3 a4 h4 d4 b3 g4 h2 d6 c4 d7 h3 d5 b2 g5 e2 d6 e1N a5 c3 a6 c2 a7 Nh6 g6+ Kg8 g7 Nf7 Qg4 Nf3 Na3 b1N Bd3 Rh5+ Bg5 c1B Qh4 Nh8 Ra2 Bf4 Be4 Nc3+ Kc5 b5 Nc4 b4 Rd2 b3 Nb6 Bb7 Nc8 Nd5 Kb5 Qe8 Kc5 Bg3 d8R Nd7+ Kb5 N7f6+ d7 Nh7 Ka5 Ne1 f4 Nf3 Kb5 Ba6+ Kc5 Bc4 Kc6 Rb8 a8Q Rb6+ Kc5 Ra6 Qa7 Ra1 Qa3 Nb6 Kc6 Bf7 Kb5 Nd5 Kc5 Ne1 Nf3 Rb1 Ne5 Nf3 Rg1 h1R Ng4 h2 Re1 Ra1 Ree2 Rhb1 Kc6 h1R Kb7 Bh2 Re3 Bg6 Kc6 Kf7 g8B+ Kg7 Be6 Bf7 Re1 Kg8 Ree2 Bg7 Kb7 Nc7 Kb6 Qf8 Ba8 Rhc1 Re8 Rd1 Bf6 Rf5 Bg5 Bb2 Re1 Ra5 Re5 Bc3 Be4 Bb4 d8R Rh1 R8d4 Bc3 Rd7 Rc5 Red8 Nd5+
bn1qnkrB/1N1bpN1B/nRQ5/2r4b/2pRrK2/3Q4/r1P5/R2nQR2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Bg2 Bh6 Bh3 fxg4 Bf1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bf5 Ne2 Be6 Ng1 Bc8 Ke2 c5 Ke3 h5 f4 b5 a4 h4 d4 b3 d5 g2 g6 b4 a5 b2 g7 h3 a6 g3 a7 h2 d6 b3 f5 Rh4 f6 Bd7 Nd2 b1N Bd3 b2 Qf3 Nc3 Qf1 b1B Ngf3 g1R Ne5 g2 Qe1 Ba2 Bb2 Bf7 Ndc4 Bh5 Na5 c4 Nf7 Rg4 Nb7 Nd1+ Ke2 e3 Kf3 e2 Bh7 Rg5+ Kf4 Rd5 Ra6 Rc5 Rb6 Na6 Qc3 e1N Qd3 Nf3 Be5 Re1 Ba1 Rb8 a8Q Ne5 Rf1 h1B Rg1 Nc3 Bb2 Re3 Ra1 Nd1 Bc3 g1R Bd4 Nc7 Qa5 Ra8 Qe1 Ra2 Bc3 Bdc6 Bd4 Nd7 Bb2 Nh6 Bc3 Ng4 g8Q+ Nf8 Qgg6 Nd7 Be5 Nb8 d7+ Kf8 Qge4 Ba4 Qc6 Nca6 Bb2 Nh2 Bc3 Rg8 Be5 Ng4 Bb2 Qe8 d8R Re6 Rd4 Qd8 Nh6 Ree5 f7 Nf6 Bc3 Ne8 Bb2 Kg7 f8R Re6 Rf6 Be4 Nf7 Kf8 Rg6 Bef3 Rg1 Re3 Rf1 Re6 Qd5 Bd7 Qc6 Ree5 Re4 Re6 Bh8 Bh1 Rd4 Ree5 Qdg6 Re4+ Kg3 Bhg4 Na5 Bh5 Qc8 Re2 Kf4 Rce5 Qd3 Ba8 Qc6 Rc5 Nb7 Re4+
3BQ3/1B1pB1R1/1rNp2KP/N1b5/n1r3rB/2nkbN2/nr2bQqR/n7 w - - 0 1 legal: proof: f4 e5 a4 exf4 d4 h5 g4 hxg4 d5 b5 d6 cxd6 axb5 Qe7 Ra2 Qg5 Ra1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 g5 h4 f5+ Kd4 f3 e4 f2 b4 g3 e5 g4 h5 a4 c5 g2 c6 g3 c7 a3 h6 f4 Ke4 a2 b6 f3 b5 Nc6 b7 Ra6 b8B Be7 b6 Nf6+ Kf4 Ne4 b7 Nb4 Qd4 Nc3 Qb6 Kd5 Kf5 Bg5 e6 Na4 e7 Rg8 Qa7 Rb6 e8Q Kd4 Ba6 f1R Na3 f2 Nc4 Kd3 Nf3 g1N Rh2 g2 Bd2 Rc1 Be1 f1R Bh4 Rf2 Na5+ Rc4 Re1 a1N Re7 Bf4 Rg7 Na2 Kg6 Rfb2 Be7 Ne2 Bh4 R6b4 Qf2 g1B Ba7 Bg5 b8B R4b3 Bb6 Nec3 Bb7 Qe7 Bd4 Qe2 Bf6 Rb6 Be7 Qf1 Ba7 Qg2 Bb8 Rf8 Ba7 Rff4 Bb8 Rg4 Ba7 R6b3 Bd4 Rbb4 Bdf6 Rb6 Bd8 Rc5 Bfe7 Rcc4 Bd5 Bb7 c8N Ba6 Na7 Bb5 Qe1 Bc5 Bb7 Bc6 Qf2 Bd5 Nd2 Bf3 N7c6 Be2 Nf3 Bge3+
n3r1RB/N1Rp1pK1/r1Qnq1b1/1Rb1nb2/4BNrk/2r5/PRB5/bQ6 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 c4 d3 e4 d2 h3 b3 h6 f3 h7 b4 c5 b2 c6 f2 c7 b3 Qf3 Nf6 Nc3 b1N Nb5 b2 Na7 Na3 Rh2 b1B Bb2 d1R Bd3 f1R Ne2 Ba6 c8B Nd5 Nf4 Rc1 Bb7 Rg1 Bc2 Bc5 Qc3 Bd3 h4+ Kg4 h5 g5 h6 Qb6 Qb3 Rd8 h8Q Nc7 h7 Nab5 Qf6 Nd6 h8R Re8+ Qfe6+ Kg3 Kf6 g4 e5 Nc6 Kg7 Bd4 Qb4 Bf5 Rg8 Bc3 Rd2 Kh4 Rd5 g3 Rb5 g2 Qec4 Ne7 Bbe4 Ng6 Qc6 Bd4 Qb3 Bc5 e6 Ne5 e7 Bd4 Nc8 Ra6 Na7 Na8 Bc3 Rcd1 Bb2 Rd3 Qb4 Rc3 Qb3 Rf8 e8R Bg6 Rc8 Re8 Rc7 Bf5 Qb7 Qc6 Qb4 Qc4 Qc6 Qe6 Bd1 Bc2 Rb1 Bd3 Bc2 Bg6 Bf3 Bdf5 Bfe4 Rc5 Nc8 Nf3+ Kh6 Rc4 Qb3 Bc5 Bg7 Ne5 Na7 Bd4 Qb4 Ba1 Bh8 Rc3 Qb2 Re1 Qc1 g1B R1b2 Bc5 Kg7 Rg1 Qb1 Rg4
5Rnk/2P1r3/B2np3/RBB1Kbb1/Qb4Br/2Q3n1/N1q2bp1/1r1Nr2N w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 Ke3 b5 Kf4 g5+ Ke5 Kg7 h4 d5 f4 e3 a4 e2 c4 e1B c6 g3 c7 g2 a5 d4 c5 g4 c6 d3 a6 g3 h5 d2 f5 b3 a7 e6 Nc3 b2 Nh3 b1N Na2 g1B Qa4 d1R Nf2 g2 Ba3 b4 Bb5 b3 Bc5 Ba6 c8B b2 c7 Na3 f6+ Kh7 f7 b1R h6 Qd3 Rh3 Bb4 Nh1 Qc2 Rf3 Be7 f8Q Be3 Qf6 Bf2 Rf5 Bb7 Rf4 Be4 Bca6 Re1 Rf5 Bh4 Rf2 Bd8 Qf3 Bde7 Qc3 Beg5 Rf5 Bf2 Rf8 Kg6 h7 Kg7 Be2 Nb5 Bg4 Nd6 Bb5 Nf6 Ba6 Nh5 Bb5 Rg8 h8N Ng3 Ng6 Rh8 Ne7 Rh4 Nd5 Bf5+ Ne3 Nd7+ Kd4 Rc8 a8B Rd8 Bb7 Nf6 Ke5 Rd7 Bc8 Re7 Bca6 Be4 Nd1 Ng8 Rb8 Kh7 Rf8 Kh8 Qa5 Nf1 Nc1 Rh6 Ra4 Rh4 Na2 Ba3 Qab4 Ng3 Ra5 Bf5+ Qe4 Bge3 Qa4 Bb4 Bh5 Bd2+ Bhe2 Bde3 Bg4 Bg5+
Bb1rr2R/1pB3k1/2bn3N/R1rQ2b1/5P2/RR2nn1K/pb2n3/3qBN1Q w - - 0 1 illegal: No proof kernel
3q2B1/N2r4/2nR3b/1Q2qbB1/Kpr1RN1q/4pn2/1P4R1/QnknB1Rq w - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 g5 h4 gxh4 a5 d5 cxd5 Nc6 a6 Nb4 Qe2 Nxa6 Qf3 Nb4 Qd1 Na2 d4 Kf7 Kd2 Kf6 Kc2 Kf5 Kb3 e5 f4 h5 d6 c5 g3 a5 d7 b5 d5 e3 g4+ Ke4 f5 h3 d6 h4 f6 b4 g5 c4+ Ka4 c3 g6 c2 f7 e2 g7 e1N Qh5 h2 Kb3 h3 Qg5 a4+ Kc4 a3 Kb3 Ne7 g8R Nc6 Bc4 Ra7 Bb5 Bh6 f8R Nf3 Re8 Nc3 Ne2 a2 Bc4 Nd1 Bd2 c1Q Be1 Qf4 Nbc3+ Ke3 Rg1 h1Q Nb5 h2 Rb1 Rc7 Ka4 a1N Na7 e4 Qb5 Nc2 R8g2 Rh7 Bg8 Qe5 Nf4 Na3 Rc1 Rg7 Rcc2 Nb1 Rcd2 Ncd4 Re6 Rc4 Re7 Nc6 Re8 Qh4 d8B Bf5 d7 Rh7 Bf6 Qg5 d8Q Rd7 Rd6 Qh4 Rg3 Qg2 Re7 h1Q Qa8 Qd2 Bg5 Qdd5 R3g2 Qdd4 Bf2+ Kd2 Be1+ Kc1 Ree6 e3 Re7 Qf6 Re4 Qc3 Qe8 Qce5 Qf7 Rc5 Qa2 Qd8 Qa1 Rc4
R1r1B2q/3Q4/b3n1b1/qQ1Q1RN1/p2R2pk/K3R1b1/n1Nn1rPB/4b2n w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 h4 fxe4 h5 b5 axb5 Qc7 h6 Qf4 Na3 Qxh6 Nb1 Qh2 Kd2 Kf7 c4 Kf6 Kc2 h5 Kb3 g5 f4 e5 c5 a5 b6 d5 b7 a4+ Kb4 e3 f5 h4 b3 d3 Qc2 g4 Qf2 Kg5 f6 d4 f7 h3 Nd2 e2 Rb1 e1Q Ne2 e4 Ka3 e3 b4 Nd7 b8R Ba6 b5 Ngf6 b6 Bd6 f8R Ne4 b7 Bg3 c6 Kh4 c7 Ndc5 c8Q Ne6 Rf5 Rf8 Qd7 Rf7 Rg8 Rc8 b8Q Rf6 Rg1 Qh1 Qe5 h2 Qed5 Rff8 Rb3 Rf7 Nc4 d2 Nc3 d1N Qe2 Nd2 Ne4 d3 Ng5 Nc3 Bb2 Na2 Be5 Rc5 Ra8 Rc8 Qef3 e2 Q5b5 Rff8 Qfd5 Rf6 Rf4 Rf5 Rd4 Rf2 Bf4 Qd1 Bb8 e1B Ne3 Qe2 Nc2 Qe5 Be2 Qh8 Rf1 Qg1 Qe5 h1N Qed5 Qh2 Bf3 Qd8 Be4 Qa5 Bg6 Nf3 Nh7 d2 Bh5 d1B Rc3 Re2 Rb4 Nd2 Nd4 Bgf2 Re3 Qe5 Be8 Bb3 Ng5 Qh8 Bh2 Bg3 Rf7 Bc4 Nc2 Bd3 Rd4 Bg6 Rf5 Rf2
1nB2kq1/3Qr1R1/1qn3KN/1R3N2/p4PnB/4BQbp/n2q3Q/1B1br1q1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 c4 e5 b4 d5 c5 a4 g5 h3 c6 h4 c7 e3+ Kd3 h2 b6 e2 b7 e1Q b5 h3 g6 Bd7 c8B Ne7 b6 Rh7 g7 Qa5 g8Q Nec6 Qf3 Re7 Nd2 Bg4 Qh7 Ra7 Nb3 e4+ Kc2 e3 Kd3 e2 Rb1 e1Q Ne2 Qc5 Rg1 h1Q Ng3 Qeb4 Bg5 Re1 Bh4 Bd6 Nf5 Bg3 Qd7+ Kf8 Rb2 Qd6 Nh6+ Q6f6 Rg2 Qg1 Be2 Qe8 Bd1 Qef7 Bc2 Qg8 Bb1 Qa5 Qe3 Bd1 Qf3 Be5 Rg7 Bg3 Nd2 Qb4 Nc4 Qf4 Ne3 Qc5 Kd2 d3 Rb5 Qd6 Kc3 d2 Kd3 d4 Nef5 Qg6 Qe3 Qfd6 Ke4 d3 f4 Bc2 Qe2 d1N Qe3 Bb3 Qe2 Ne3 Qh2 Na6 b8B d2 b7 d1N Bc7 Qd2 Bb6 Ng4+ Be3 Qf6 b8Q Nc3+ Kf3 Qd8 Qa8 Na2 Ke4 Bd1 Qab7 Na5 Qbd5 Qb6 Qd3 Nb8 Qde2 Rc7 Qf3 Nf2+ Ke5 Nac6+ Kf6 Ng4+ Kg6 Ra7 Qe6 Rf7 Qd7 Re7
3Q2n1/2b2bkB/KQrB3n/q4P2/1BRqN2N/2p5/qbr1b1pq/2N1B2R w - - 0 1 illegal: No possible last move, all moves rejected
r1R1QNqk/7r/3R2b1/4pqPn/pK1nq1RQ/R1B1nn2/1Q4BN/4bq2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg7 c4 d5 g4 h5 b4 a5 c5 e5 f5 h3 c6 d3 Kc3 h2 c7 e3 g5 d2 f6+ Kh7 b6 h4 f7 e2 b7 e1N b5 h3 b6 a4 Bg2 Nf6 Qg4 d1Q Nd2 Nf3 Qh4+ Nh5 Nc4 Nc6 b8R Bf5 c8R Ncd4 b7 Qf1 Ra3 Bg6 Bd2 Qd7 Be1 Qf5 Nb6 Bc5 f8Q Bb4+ Kb2 Ba5 Qe8 Kg7 Nd7 Rh7 Nf8 Kh8 Rc6 Bb4 Rbc8 Ba5 Bf2 Be1 Rd6 Qc4 Rcd8 Qcc8 b8Q Qce6 Rc8 Qef7 Ne2 Qg8 Rg1 h1Q Ng3 h2 Qb6 Nc6 Qb3 d4 Nf1 d3 Bd4 d2 Bc3 d1N+ Ka2 Rf7 Qb2 Ne3 Rb3 Ncd4 Ka3 Re7 Kb4 Rh7 Ra3 Qge6 Bh3 Qg8 Rg4 Qg1 Bg2 h1Q Nh2 Qf2 Qf7 Qe4 Qe7 Qhf1 Qe8 Qfc2 Nd7 Qf5 Nf8 Qce4
4Bq2/1K1nN1N1/R1Qr4/NPR2Qp1/kq3bb1/4rRqN/2pn3B/1rqr4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 c5 e4 f5 b4 g5 h4 a5 b6 Kc6 e5 Kb5 e6 g3+ Kf3 a4 b7 a3 h5 g2 d5 a2 d6 Rh7 h6 Ra6 d7 Rd6 e7 Qa5 d8Q Nd7 b8N Ngf6 e8N Ne4 Qc2 Re7 Nh3 g1Q h7 Bg7 h8R Be5 Qf2 Ka4 Nc6 c3 Na3 c2 Ng7 c4 Rf8 c3 Qe8 Qb6 Bd2 c1Q Nc4 c2 N4a5 Ree6 Ne7 Qh2 Rb1 a1R Rb2 Rb1 Bb5+ Ka3 Rf6 Qb8 Rf1 Qg3+ Ke2 f3+ Ke3 Qb7 Bc6 Qb8 b5 Ka4 Rb3 Qa3 Rc3 Qb4 Bc1 Nd2 Rc5 Qa8 Bb2 Rd1 Bd4 f4+ Kd3 Rb1 Qg6 Rd1 Qf5 Rb1 Qg2 f2+ Qf3 Nb8 Be8 Nd7 Re1 f1R Re3 Rfc1 Qc6 f3 Rh6 f2 Rf3 f1Q+ Ke3 Nc4+ Ke4 Rd1 Bg1 Qb8 Bh2 Bf4+ Re5 R1d2 Rf6 Qc1 Rg6 Rd1 Rh6 Rf6 Rc5 R6d3 Rg6 Ra3 Rh6 Nd2+ Kd5 Rg6 Qce6 Re3 Kc6 Qe5 Qd6 Qf6 Qde6 Qf8 Qd6 Nb8+ Kc7 Bd7 Kb7 Rf6 Qc6 Rd6 Qf6 Bg4 Qf5 Rd7+ Qc7 Rd8 Ra6 Rd6 Qc6 Nd7
q3K1Q1/1qn3b1/7R/pR4n1/2r1B1nr/RQpP1b1B/rB1NB2k/N5nr w - - 0 1 illegal: No possible last move
1Q1Q1Rn1/2b2nB1/n2r2P1/3N1Qb1/nqkpR2b/2N3K1/rp2b1BR/q2R4 w - - 0 1 illegal: No possible last move
3NN2q/Q2Rr1b1/1Q3PQ1/1bp1b1KN/n3pQ1B/2n5/Bbn1R1r1/3n2kq w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 b4+ Kd4 g4 h5 b6 c5 g5 a5 g6 c3 g7 h3 b5 e5+ Kg3 c2 f4 e3 d3 h2 b7 e4 f5 a4 Kf4 a3 f6 a2 b6 h4 Nc3 h3 Nd5 e2 Qd2 e1N Kg5 Rh7 Qf4 Bd7 Nc7 Bb5 Ne8 Ne7 g8Q Nd5 Qg6 Nd7 b8Q Re7 b7 Bg7 Qa7 N7b6 b8Q Na4 Qbb6 Ndc3 Bd2 Qb8 Rd1 c1B Be2 Nc2 Be1 a1B Bh4 Bcb2 Bh5 Kd5 d4 Kc4 Re1 Kd3 Ne2 Qd8 Rhg1 h1N d5 h2 d6 Nf2 d7 h1Q Ng3 Nfd1 Re2 Rc8 Bg4 Rc7 Be6 Kd4 Nd6 Qh8 Ba2 Rc8 Nh5 Rg8 d8N Kd3 Re3+ Kd2 Rd3+ Ke2 Rgg3 Ke1 Ne8 Ke2 Rd7 Ke1 Qc1 Kf1 Re3 Kg1 Re2 Nb1 Bb3 Be5 Bc4 Nbc3 Ba2 Bb2 Qf4 Na1 Qh7 Bh6+ Kf5 Rg2 Qg6 Bg7 Qgh6 Rf2 Kg5 Nc2 Qg6 Rg2+
b1K2Nkr/2n3q1/1n1R1p2/4qB2/r2bPq1B/3qQQ2/bp2RR1Q/2Q1b2N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 c5 Kf3 h5 Ke4 b5 Ke5 f3 a4 h3 g4 h4 d4 f2 g5 h2 g6 b3 d6 h3 a5 b4 d7+ Ke7 g7 c4 d5 b2 a6 b3 a7 c3 Nd2 b1B Nc4 c2 Nb6 b2 Bg5+ Nf6 g8Q c1B Qh7 Bh6 d6+ Kf8 e4 Ba6 Ne2 Nd5 Ng3 f6+ Ke6 Qc7 Qf3 Bb5 d8Q+ Be8 d7 Na6 Bc4 Be3 Rf1 Ba2 Rae1 h1Q Qc8 h2 d8R Qg1 Bb5 h1Q Bd7 Qh4 Nh1 Qcg3 Qc1 Bd2 Re3 Be1 Bc8 Q1g2 Rd6 Bc6 Bd7 Bb7 Bc8 Q3h2 Kd7 Nac7 Kd8 Qe5 Kd7 Rb8 a8Q Qhg3 Qa6 Ra8 Qd3 Ra4 Kd8 Qg4 Bf5 Ba8 Kc8 Qgh2 Rg1 f1Q Rg2 Qe2 Rf2 Qhh4 Qd4 Qd3 Ree2 Qgg3 Qe7+ Kg8 Nd7 Qhh2 Nf8 Qhg2 Qe8 Q2h2 Qeh5 Nb6+ Kb8 Qhg2 Qh2 Qg1 Bh4 Be3 Qdc5 Qgf4 Qd4 Qg7 Qdc5 Qc2 Qc3 Bd4 Qc3e3 Nc4 Kc8 Qd2 Ra6 Qd3 Rd6 Nb6+
1r3b1Q/2n1kbq1/r1R1p2p/1B1rRRR1/7b/r1BPN1K1/8/NNq1n1bQ w - - 0 1 illegal: No possible last move
q2rq3/b1b3Nr/2QPN2B/Qb1r1R2/1rB2n2/2R1Nknp/p3N2Q/K6b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 c5 g6 h5 g7 f5 d3 a5 Kd2 h3 Kc2 h2 Kb2 c3+ Ka2 f3 b6 h4 b5 h3 b7 f2 b6 a4 Ba3 Kf4 d4 c4 e5 c2 e6 c1R e7 c3 e8Q c2 d5 Bd7 Be2 f1Q Bf3 Rh7 Qg6 Qe8 Nc3 Bb5 Qc6 Rb1 Be2 c1B Bc4 Na6 b8N Nf6 g8N Nc7 b7 Ne4 Nh6 Rb4 Qh5 Ng3 Nd1 Qf3 Ne3 Bd6 Na6 Rd8 b8Q Ne6 Nc5 Bc7 d6 Bd2 Bc1 a3 Qa7 Bc3 Qa5 Bd4 Bd2 Qe4 Rc1 Qd5 Qg6 Qe4 Ne2+ Kf3 Qf7 Nf4 Ne6 Ba7 Ka1 a2 Rc3 Qd5 Re1 h1B Qf6 Qe4 Qe5 Qd5 Qd7 Qa8 Qc6+ Nd5 Rb1 f4 Rd1 Kf2 Nhf5 f3 Nfg7 Nf4 Nd5 Kg2 Rf1 f2 Bc1 Ne4 Ne3+ Kf3 Rd1 f1R Rd5 Rd1 Rc5 Ng6 Qh2 Nf4 Rd5 Ng3 Rf5+ Rd5 Nc2+ Kg4 Bd2 Ng2 Bh6 Nf4 Ne3+ Kf3
2k2q1B/1b4qr/1q1p1Q2/5bb1/q3R1PN/1bBp1K1r/n3B2R/Q3NRBn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 b4 a5 g4 h5 e4 f3 c4 h3 b6 f4 e5 d6 e6 h2 c5 d3 c6 a4 c7 h4 b7 h3 b5 a3 e7 Kd7 e8R a2 b6 Ra7 Qa4+ Nc6 b8B Bh6 b7 Bg5 Re6 Nf6 Qd1 Nh5 Bd2 Nb4 Na3 Ng3 Rb1 a1Q Qc2 Na2 Re4 Qg7 Bc3 Rh7 Qd1 Rh5 Ke1 f2+ Kd2 Rh8 Be2 f1Q Nf3 Rh7 Nh4 f3+ Re3 f2 Nc2 Qg2 Ne1 f1Q Qc1 Ra5 Ba7 Qe4 b8B Qa4 Bad4 Qff8 Bba7 Rc5 Rf1 h1B Rb2 h2 Qa1 Bd5 Be5 h1B Bf6 Qgg8 Bh8 Bb3 Rc2 Rf5 Bad4 Rf4 Re4 Qgg7 Bg1 Bb7 Ke3 Kc8 Re6 Bhd5 Re4 Be6 Rd2 Bf5 Rc2 Be7 Rb2 Rf2 Rc2 Rh2 Kf3 Rh3 Rb2 Kd7 Rd2 Bg5 Rc2 Kc6 c8Q+ Qdc7 Qd8 Qb6 Qf6 Kc7 Bd1 Kd7 Rh2 Kc8 Be2 Nh1+
2Qb1b2/4n1K1/1Bp2Bb1/6qQ/rN2p2n/1R2PRQB/3rq2n/b1NkBn2 w - - 0 1 illegal: No possible last move
2Nn2n1/2r1Q2Q/2p5/NB5R/KR1pQ1br/n4P1b/1qnBN1b1/bkqN4 w - - 0 1 illegal: No proof kernel
n3b1NB/b3Q1RN/1pr1p2r/2bknnRK/6BP/3q4/N3bq2/1QQQ2n1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 d4 Kd6 h4 c5 f4 g5 a4 e3 f5 g3 Kf3 c4 Kg4 g2 a5 e6 a6 e2 f6 e1Q f7 b3 a7 c3 Ne2 g1B Bh3 c2 Ng3 b2 Nc3 b1B Nh5 Ne7 Nf6 Nf5 Ra5 Qf2 Bb2 c1N Ng8 Bd7 Na2 Nd3 Qc1 Na6 Ba1 Rb8 a8Q Rc8 Qb8+ Nc7 Rb5 Be7 f8N Rh6 Nh7 Rg6 Kh5 Ne5 Bg4 Be8 Rh2 Bc2 Rg2 Bd1 Rc5 Be2 Rg3 Kd7 d6 Na8 d5 Rc6 Bd4 Nf7 Bh8 Ne5 Qa7 Bf8 Qb6 Be7 Qbb1 Bf8 Bf3 g4 Rg2 g3 Bg4 b6 Rb5 Bh2 Rg1 g2 Ra5 Kc8 d7+ Kc7 Rb5 Bc5 d6+ Kb7 Ra5 Qc8 d8Q Qd7 Qe7 Bg3 Rh1 g1N Rh2 Bf4 Rg2 Bh2 Qf8 Qd8 d7 Kc7 Qg7 Kd6 Qe7+ Kd5 Ra7 Nd3 Rb7 Bb8 Rc7 Ba7 Rb7 Qc7 d8Q+ Qd6 Qdd7 Rc7 Qa4 Rc6 Qad1 Qdg3 Qeg5 Qge3 Rg7 Qd2 Qe7 Ne5 Rg3 Qd3 Bf3+ Kd4 Rg5 Nh6 Qbb3 Nf5 Bg4 Ke4 Qb4+ Kd5 Qbb1 Rh6#
2kq1nr1/1qb3Qp/K3b3/4Q2P/5p1B/1r3R2/n2rNrQR/bBN2bBB w - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Ke2 Kd7 h4 f5 c4 a5 d4 e5 g4 b3 b6 a4 d5 a3 b7 a2 h5 e3 Kd3 e2 c5 e1Q Kc4 f3 Kb5 f2 d6 e4 c6+ Ke6 c7 Kd7 g5 f4 g6 e3 g7 b2 Nd2 b1R+ Nb3 e2 Qd5 Qd2 Rh2 e1R Bg2 f1B+ Ne2 Nc6 b8Q Rd1 Bh1 Nf6 g8Q Qb2 Be3 Nb4 Bg1 Rd2 Qdg2 Ra4 Q8g5 Rg8 Nc1 Ra3 Q5g3 Rf3 Qg7+ Be7 Ka5 Rf2 Kb5 Qb3 Ka5 Qd5+ Qb5+ Qc6 Qe5 Rb3 Rb1 a1B Rb2 Rbf3 Rb3 Qb7 Re3 Na2 Ra3 Kc6 d7 Bd6 Rb3 Nd5 Re3 Ne7 Ra3 Ng6 Re3 Qe8 d8B Be6 c8B Nf8 Bh4 Qee7 Bd7+ Kc7 Bb5 Rh3 Bd3 Kc8 Bb1 Qf6 Rf3 Qd8+ Ka4 Qbe7 Kb5 Bc7 Ra3 Rb3+ Ka6 Rb7 Rf3 Rb3 Qh8 Qb4 Qhg7 Qb7#
N5N1/B1b1r1Rp/knn2pbN/q2RbQ1K/1r1rNq2/2Q5/4R2P/3Brb2 w - - 0 1 illegal: No possible last move, all moves rejected
3N1B1k/5np1/2b1R2r/3b1p2/1n3q1n/QKN1NPrQ/1QR2qQ1/3Bbbn1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 d5 h4 f5 c4 Kf7 Kc2 a5 e4 b3+ Kb2 g3 c5 a4 b6 g2 c6 d3 b7 d2 c7 d4 h5 d3 e5 Qd4+ Nc3 Bd7 c8Q Bb4 h6 Bc6 h7 Nh6 Nh3 g1N Rh2 Na6 b8N Qf4 Qe2 d1B e6+ Kg6 e7 d2 e8Q+ Nf7 Qb5 Be2 Qe7 d1Q Bd2 Qe1 Qcb7 Kh6 Bg2 Bf1 Bf3 Kg6 Bd1 a3+ Kc1 b2+ Kc2 b1B+ Kb3 a2 f3 Ba5 Qa3 Qf2 Qe2 Bbe4 Rc1 Nb4 Rc2 Ra7 Be3 Ra8 Bc5 Ra6 Bf8 a1N+ Kb2 Rg8 h8Q Rb6 Qh4 Rh8 Qg4+ Kh7 Qg3 Q2e3 Qeg2 Qf2 Re2 Nac2 Kb3 Ne1 Qg4 Bb1 Re6 Bbe4 Qh4+ Kg8 Qhg4 Rh6 Q4g3 Q4e3 Nf4 Kh8 Nd5 Qf4 Ne3 Ra6 Q2h3 Ng2 Qb5 Nh4 Qgg2 Rg6 Qe2 Rg3 Qeb2 Ba8 Nc6 Bb7 Re5 Rb6 Nd8 Rh6 Re8 Bbc6 Re6 Na2 Na4 Be1 Nc3 Nb4 Qh1 Qd2 Rg2 Qd4 Rc2 Qd2 Q3g2 Qf2 Qhh3 Bed5+
2q3q1/RKQ2pRn/1QN1qq2/3r3N/3brp2/3R1P2/1B1r2Rb/3kNrnB w - - 0 1 illegal: No proof kernel
1b2KN2/3Q1pr1/B1p5/1n2NQbB/R2nR2R/rq5q/4QPbq/k1b3qQ w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 Be3 d5 axb5 dxc4 d5 Na6 Bb6 Nb8 Bd4 exd4 Kd2 Ke7 b4 Kf6 e4 Ke5 g4 a5 g5 h5 d6 c6 d7 h3 b6 c3+ Kd3 a4 Kc4 a3 g6 h2 b5 d3 g7 d2 b7 h4 b6 h3 Ne2 a2 Nd4 c2 Qe2 d1Q Nd2 c1B Ne6 Ne7 Kc5 Qa4 g8B Qc7 d8Q Qb3 Qd7 Ra3 Bh7 Bh6 Bg6 Rg8 Bh5 Rg7 Nf8 Bg5 Nc4+ Kf4 e5 Nf5 e6 Nd4 Rb1 a1B e7 Bc3 e8R B3d2 Rg1 h1Q Ra1 h2 Ne5 Bc3 Rg3 Qg1 Rh3 h1Q Re6 Kf5 Rh4 Qh3 Ra2 B3d2 Ra1 Bdf4 Ra2 Qd8 Kd6 Na6 b8Q Nc7 b7 Qf6 Qa8 Qh6 b8Q Bh2 Qa5 Ncb5+ Kc5 Bhf4 Qbd6 Bg3 Qd5 Qhh2 Qh1 Ba6 Nd3 Bb8 Ree4+ Kf6 Ne5 Bc8 Qda7 Bh3 Qd7 Bg2 Kb6 Qhh3 Kb7 Qhh2 Kc8 Qh7 Kd8 Qf5 Ke8 Qfh3 Qb7 Kf5 Nh7 Ke6 Nf8+ Kd5 Qd7+ Kc5 Qb6+ Kb4 Qc5+ Ka4 Qcd5 Kb4 Q5e6 Kc3 Qf5 Ra7 Ra4 Ra6 Qd1 Kb2 Bc4 Kb1 Qe2 Ra8 Rb4 Ra1 Ra4 Ra3 Bd3+ Ka1 Bc4 Nc3 Ba6 Ncb5
1B1N2n1/R4pkr/bP1R2n1/QB1q4/B1n2QKB/2b5/np1bQr1q/2b2N2 w - - 0 1 illegal: No proof kernel
7B/1k2P3/rnr3rb/Rn3b1R/qQn1BpR1/Br1n4/3N1p1q/1BNKQ3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 a5 e4 h5 b4 d5 g4 Kd7 e5 Kc7 b6+ Kb7 b5 f5 e6 h3 e7 a4 g5 h2 g6 a3 g7 h4 c5 f3 Kd2 a2 Bg2 d3 Ba3 d4 Ke1 d2+ Kf1 f4 Qb3 d1Q+ Kf2 h3 Bf1 d3 Qb4 d2 Qb3 Bf5 Ne2 Nd7 Qa4 Rh6 Qb4 Rc6 Nc1 Nh6 g8R Ra6 Bd3 Nf7 Be4 Nd6 Rg4 Qa4 Qc3 d1R Qe1 Nc4 Nd2 Bh6 Kf1 Qh8 Bb1 Kb8 b7 Ndb6 Kf2 Ka7 b8B+ Kb7 Be5 Qh7 Bh8 Rg6 Ne4 Rd3 Nd2 Rb3 c6+ Kc7 Rhg1 h1R Kf1 Kb8 c7+ Kb7 Kf2 h2 c8B+ Ka7 Be6 Kb7 Bd5+ Rc6 Rf1 Rg1 Bde4 Rg3 Rg1 h1N+ Kf1 Nf2 Rh1 Nd3 Rh5 f2 Ke2 Rg1 Kd1 Qg6 Rgh4 Qg2 Rg4 Qh2 Rgh4 Rg6 Rg4 Nc8 b6 Kb8 b7 N8b6 Bc2 Kc7 Rb1 a1N b8Q+ Kd7 Qd6+ Kc8 Qb4 Kb8 Rb2 Kb7 Bb1 Nc2 Ra2 Nd4 Bb2 Qb5 Ra5 Qa4 Ba3 Nb5
1bN3bn/B1k1P3/Q2b1RnN/b1p1rq1Q/nr6/2NB1q1n/1pK2R2/B3B3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 g5 h4 b5 a4 f5 e4 f3 e5 b3 h5 g3 d6 b2 d5 b4 a5 f4 a6 b3 a7 g2 h6 f2 h7 g4 Ba6 f1Q Rh2 f3 Rh4 g3 Bb5+ Nc6 Bc4 f2 Qe2 Qf6 Rg4 Nh6 Nh3 g1B Rg8 g2 Qh5 Ne7 Ra2 Bh2 Nf4 g1B Nc3 Qf5 Bd3 Rb8 a8Q Rb4 Rg6 Nf7 Rf6 Ng6 e6+ Kd8 d7 Bd6 Qa3 Re8 h8B c5 Bg7 Nfh8 Qa6 Kc7 d8N Bd7 Nf7 b1N+ Ke3 Bb5 Bd2 Bc4 Nh6 Qg2 Ke2 f1N+ Kd1 Ng3 Be1 Ne4 Rf2 Ng5 Kc1 Nh3 e7 Qf3 Kb2 Rd8 Kc1 Bg3 Kb2 B1h2 Kc1 Kb8 Kb2 Bc7 d6 Bg8 d7 Ba5 Nfd5 Bd6 Nb6 Kc7 Nc8 Rf8 Nd1 Nc3 d8B+ Kb8 Kc1 Na4 Bb6 Rd8 Ba7+ Kc7 Rf7 Rd7 Ba1 b2+ Kc2 Rd8 Nc3 Rf8 Rh7 Rf6 Rf7 Re6 Rf8 Re5 Rf6 Kd7 Rf8 Bb8 Rf6 Kc7 Nf7 Re6 Nh6 Bd6 Nd1 Re3 Nc3 Re5
2N3q1/Q3Ppk1/Qb2bnp1/4b1N1/KrQ5/1nN1Rq2/1b1n1rRQ/4BB1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 h4 d5 c4 a4 Kc2 f3 e4 g6 b4 a3 Kb3 f2 b6 d3 c5 a2 b7 d4 e5 d2 e6 d3 b5 g3 h5 g2 c6 Bg7 c7 Kf8 b6 Nd7 b8Q Bb2 e7+ Kg7 b7 Ngf6 Nc3 Ra5 Nh3 g1B Qa7 Rb5+ Ka4 Qg8 Qe2 d1N b8Q d2 Qbb6 Rh6 Rb1 a1B Rh2 Rh7 Qba6 Rh6 Bg2 f1N Qc4 Bb6 Ng5 Nf2 Bh3 Nh1 Rg2 Bb7 c8N d1Q+ Qb3 Ba8 Bd2 Bd5 Be1 Qf3 Qc4 Be6 Rd1 Rh8 Rd3 Nd2 Re3 Rh6 Rh2 Rh7 Bf1 Rh6 Rg2 Rh8 Na2 Be5 Nc3 Nc5+ Ka3 Ncb3 Ka4 Qe8 Qa8 Bb2 h6+ Kg8 h7+ Kg7 Nd6 Qb8 Q8a7 Rd8 Nc8 Rd4 Nd6 Qg8 Nc8 Rh4 Rg4 Rh2 Rg3 Rf2 Rg2 Kh6 h8Q+ Qh7 Qd8 Qg8 Qd6 Kg7 Qdb8 Bed4 Qg3 Be5 Qh2 Rb4+
2b3KB/B1p3Np/1r1bQn2/2QRqPb1/3r3N/1k1B2qb/3B3Q/1nqR1q2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 a5 g4 e6 f4 c3 f5 a4 g5 e3 b6 a3 g6 a2 g7 h3 d5 h2 b7 e2 d6 e1B d7 c2 Qd5 Bd2 Qc5+ Ka4 b4 Nh6 g8Q Ra6 b5 Qe7 d8B Bg5 b6 Kb3 Bd2 c1Q Nc3 Qe8 Qf7 Ng8 Nce2 Ne7 Nf3 Nd5 Bf6 Nc3 Nf4 Nb1 Nh5 Qe7 Rg1 h1B Ng7 Bg2 Bd3 Bh3 Rd1 Rg8 Nh4 Nd7+ Kd4 Qe8 b8B Bd6 b7 Rb6 Ba7 Rf8 Be5 Nf6 b8Q Qe7 Qa8 Rd8 Qh1 Qe8 Qh2 Qb5 Be4 Qf1 Qe7 Ne8 Bf6 e5+ Kd5 Rd7 Bd3 e4 Ke6 e3 Kf7 e2 Bfc3 e1Q Kg8 Qg3 Bb2 Na3 Rb1 a1Q Bf6+ Qab2 Ra1 Nb1 Ra5 Qbe5 Qe6+ Qc4 Qc6 Rd8 Rd5 Qc1 Qc5 Rd7 Nh5 Rd8 Bh8 Nf6+ Kg7 Rg8+ Kf7 Bh6 Qg2 Rg4 Qh2 Rd4 Ng7 Ne4 Kg8 Be3 Be1 Bg5 Bd2 Nf6+
3Qr3/1p1RNN2/1nn3Q1/1bkn2Bq/2N5/bPbbpK2/RRqB4/1r1n2N1 w - - 0 1 illegal: No extended proof kernel
4nb2/1p1pr1k1/2b5/R2B3Q/RR5R/Nqq3nn/QP1B2nb/1rb1QK1N w - - 0 1 illegal: No proof kernel forced: wxLB
b1n2r1R/P3b3/1R6/KQ3q1N/1r1R1n2/2RpnpBQ/k1nr1r2/1q1N1B1N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 a4 Kd6 h4 Kc5 e4 g5 c4 b5 h6 f5 h5 d5 h7 d3 a5 g4 h6 d4 e5 f3 a6 f2 e6 g3 a7 b3 e7 Kb4 e8Q f4 c5 b2 c6 g2 c7 f3 Rh2 Ne7 Ra5 Qd5 Qc6 Bb7 c8R Qf5 Rh3 Na6 Ne2 g1N Rh1 Nh3 Nbc3 b1R Ng3 Nf4 Rh4 Rb8 Qe6 Ba8 Nh1 Rb2+ Qc2 Rg8 h8R Rb7 Rc5 Nc8 h7 Be7 Nd1 Rf8 Rc3 Rd7 Ra2 Rb3 Rb2 Ka3 Qb1 Nb4 Rg4 Nc2 Qh6 b4 Qh3 Rc7 Rhg8 Rb7 h8N Rd7 Ng6 Rd6 Rh8 Rdd8 Be2 f1R Rgh4 Rf2 Rg4 Ng2 Nf4 Rd6 Nh5 Nf4 Rc4 Rc3 Rc6 b3 Rb6 Rc4 Rh4 Ne3 Rc2+ b2 Rg4 Rb4 Rc3+ Rb3 Rh4 Nc2 Qf1 Nh3 Rc4 Re6 Rg4 Qf7 Qg2 Re3 Nc3 Qf5 Kd1 d2 Bf1 Ng1 Qh3 Ne2 Rcc6 Ne1 Qd3 Re5 Qb5 Rd5 Re4 Rb4 Rc7 Nd3 Kc2 d1N Bf4 Rdd8 Bg3 Ndf4 Nd5 Ka2 Ne3 Ndc3 Nd1 Ncd5 Qd7 b1Q+ Kd2 Ne3 Qb5 Rb2+ Rc2 d3 Rc4 Nd4+ Kc3 Rd5 Rc1 Rbd2 Rb4 Rc5+ Rc4 Qa1+ Kb4 Qb1+ Ka5 Re5 R1c3 Ndc2 Rb4 Rc5 Re4 Rc4 Rd4 Rb4
2BN1Q1R/p5R1/6rr/1kbQP1n1/1NrBpnb1/1Q1B3n/2q1qQ2/1K1n3r w - - 0 1 illegal: No proof kernel
n1Bbq1k1/p6R/1brn2P1/1RB2q2/2K3N1/4pnRb/Q1bQ4/NN3rnN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 h5 f4 e5 c4 d5 b4 d3 Kc3 e3 f5 d2 f6 e2 g5 e1B c5 e4 b6 e3 b5 h3 c6 h2 b7 h4 b6 h3 c7 d4+ Kb3 d3 Kc3 Nh6 g6+ Kg8 Ba3 Ng4 Nf3 Qe8 Ne5 Na6 b8N Be7 b7 Bd8 Qc2 d1B+ Kb3 Ba5 Bc5 d2 Nbc6 Bb6 b8R Rh7 Nd3 Rf7 Na5 Ne5 Nf2 Nf3 Kc4 Bg4 c8Q Nc7 Qa4 Bc2 Nb3 d1Q Qa2 Qdd7 Bd3 Qf5 Qd7 Rf8 Be2 Rf7 Qd2 Rf8 Rg1 h1N Rg3 h2 Bd1 Bh3 f7+ Kg7 Rb7 Rc8 Be2 Na8 Rd7 Nh4 Bg4 Nf3 Re7 Rc6 Rd7 Rh8 f8N+ Kg8 Rb7 Rh7 Nd7 Rf7 Ne5 Rff6 Rh7 Rf8 Rg2 Ng3 Nh1 Ne2 Rg3 Neg1 Qda5 Qg5 Bc8 Qf5 Ng4 Rff6 Qd2 Rf7 Nc3 Rff6 Rb1 Rf7 Nhf2 h1N Na1 Rf8 Rb5 Rff6 Nfd1 Nf2 Nb1 Ne4 Ndf2 Rfd6 Qc3 Rd1 Qd2 Rf1 Nh1 Nd6+
2nrQKq1/2b1B1r1/1B1q1p2/4rQ2/b3RP1R/2kp1bQ1/6N1/1qrQrB1N w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 Bd2 axb4 Bc1 g5 e3 gxh4 Rh2 d5 Rh3 d3 Rh1 d4 e4 Nd7 Bf4 Ndf6 Bc1 Nd5 exd5 Ra5 Rh2 Ra7 Rh1 Ra8 Kd2 Kd7 c4 Kd6 g4 Ke5 a4 b5 g5 h5 c5 h3 a5 b3 c6 b2 d6 b4 g6 h2 d7 b3 c7 h4 f3 f6 a6 h3 g7 Ra7 Na3 b1Q Qc2 b2 Qd1 e6 Ne2 Bd6 Nc2 Ne7 Ne3 Qg8 d8B Bd7 c8Q Bc7 Ra2 Ba4 f4+ Ke4 Qd7 e5 Ng2 Nc8 Qf5+ Kd5 Ra3 Kc4 Be7 e4 Ng3 Rb7 a7 e3+ Ke1 e2 Kf2 e1R Kf3 Re6 Kg4 Re5 a8Q Ra7 Ra2 Kc3 Be3 d2 Qae4 d3 Bb6 Qa1 Qee1 b1Q Rb2 Qa3 Rb4 Rb7 Re4 Qd6 Qf2 Qf7 Qfe2 Rd8 g8Q Qf8 Qgg6 Qg8 Kh5 Ra7 Kh6 Rb7 Rg1 h1B Qeg4 h2 Qe8 Qge6 Kg7 Ra7 Nh4 Bf3 Kf8 h1R Rg2 Qea2 Rh2 Qad5 Ng2 Rg1 Be2 Re1 Bf1 Q5e6 Nh1 Qeb3 Qe2 d1R Rh4 Rc1 Qd1 Q3a2 Qg3 Rb7 Kg7 Qg8+ Kh6 Qge6 Bf8 Bb8 Kg6 Rf7 Be7 Bc7 Kh6 Rf8 Kg7 Rf7+ Kg8 Rg7+ Kf8 Qg8#
1nqk1nbR/p1qBNQ2/3Rq2b/4B3/4pQBB/3qrn1K/q2RP3/4b1N1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h4 g5 Bh3 g3 Qd2 g4 Bf1 Na6 Qd1 Rb8 Na3 Rb5 Nb1 Rg5 hxg5 Bg7 Bd2 Bh6 Bc1 Bf8 f4 h5 c4 d5 b4 e5 g6 g2 Kf2 h4 f5 h3 Kg3 a3 b5 e4 g7 d3 b6 d2 f6 d4 c5 d3 b7 h2 b8B a2 c6 Rh3+ Kf2 Be6 c7 Qc8 Ba3 Re3 Nf3 g1B+ Kg2 g3 Nc3 Bf2 Qb3 d1Q Be7 d2 Nd5 Qc2 Rd1 a1Q f7+ Kd7 Bf6 Qaa2 Bh4 Ne7 g8R Bh6 f8Q Ng6 Rh8 Bg8 Qf4 Nf8 Ne7 Qc5 Qbf7 Qcc2 Rb1 d1Q Rb6 Qdd3 Rg6 Qb7 c8B+ Kd8 Be5 Nb8 Bf5 Qcc7 Bd7 Qcc8 Rd6 Qbc7 Rg1 Qe6 Kh1 Qa2 Bfh3 Qe6 Kg2 Qa2 Rd1 Be1 Ng1 h1Q+ Kf1 Qh2 Rd2 Qh1 Bhf5 Qh2 Nf3 Qh3+ Kg1 Qg4 Kg2 Qg6 Bg4 Qge6 Kh3 g2 Bg5 Bf2 Bh4 g1N+ Kg2 Be1 Kh2 Nh3 Ng1 Ng5 Kg2 Nf3 Kh3 Qec4 Ra6 Qcb3 Rd6 Qe6
Qb6/3p3k/4BK2/r1q1n1b1/2nP1Q1p/QNRqBb2/N6b/1qbBR1nB w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c4 gxh4 Qa4 b5 Qa3 Ra5 Qf3 b3 Qe2 b4 Qd1 Rb5 cxb5 Ba6 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 c5 a4 c4 g4 e3 d4 e2 f4 e1B b6 c3 g5 b2 f5+ Kh7 f6 b3 a5 c2 a6 h3 a7 h2 a8B h4 f7 Bh6 f8Q Nf6 b7 Nc6+ Kf5 e5 b8Q e4 Bb7 e3 Bfa6 e2 Ra2 Ne5 Be3 c1B Nh3 Qa5 Qa7 Ne4 Nf4 Nd6+ Kf6 Bg3 Qd2 e1B Be2 Qc5 Qa8 Ndc4 Nc3 b1Q Rc2 b2 Nd3 Bef2 Bbf3 Bb7 Bd1 Bg1 Na2 Bc6 Bg2 Bf3 Rc3 Qc2 Qa3 b1Q Qfa8 Rb8 Qf2 Rb5 Qd2 Ra5 Qf2 Qcb4 Nc5 Qd3 Nb3 Qc5 Qf1 Nf7 Qf2 Bb8 Qg3 Nfe5 Qf4 Bf2 Rf1 h1N Re1 Ng3 Bh1 Bg1 g6+ Kg8 g7 Bh2 Nd2 Ne2 Nb3 Kh7 g8B+ Kh8 Bc2 Ng1 Be6 Kh7 Bd1 Bg5+
q2N1Rq1/6pp/5bkP/1nr2R1r/nrrBBR2/7R/1N1r2K1/rNr1Q2Q w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 Nc3 f5 Rb1 b6 Ra1 Bb7 Nb1 f3 g4 f4 Bh3 Be4 Bf1 Bf5 gxf5 Bc5 Ba3 Be7 Bc1 Bf8 Kf2 Kf7 e4 d5 h4 b3 c4 d3 a4 b5 h5 d2 h6 b2 f6 b4 a5 b3 c5 d4 c6 d3 e5 Nd7 c7 Nb6 c8R Be7 a6 Kg6 a7 Na4 f7 Nf6 f8Q Ne8 e6 Nd6 Rc2 Bf6 e7 Nb5 e8R Rc8 a8N Rc4 Qe1 d1Q Be2 d2 Nb6 Qa8 Rh3 Rg8 Kf1 f2 Nf3 Rc5 Kg2 f1R Qe7 Rh1 Nc4 Rh8 Rb8 Rhc8 Qb7 R8c6 Ng5 f3+ Kf2 Rc7 Ne6 Rh2+ Kg3 f2 Nd8 f1R Qh1 Rff5 Ra2 Rh5 Bf3 Qe2 Bc6 d1R Be3 Rc1 Bd4 Qe8 Rf2 Qg8 Rf5 Rd2 Be4 R7c6 Ra3 Rc8 Rh4 R8c7 Rhf4 R7c6 Nc3 b1R Nb2 Ra1 Nb1 R1c4 Nf7 Rb4 Rf8 Rcc4 Nd8 R6c5 Nd1 b2 Kf3 Rdc2 Rd3 Rc1 Kg2 Ra2 Rh3 Ra1 Nd2 b1R Nb2 Ra2 Rf1 Rba1 R1f4 Ra3 Nb1 Rd3 Qhg1 Rdd1 Qh1 Rd2+
2Q5/2QQnb1b/Nr3N1q/2bBqR2/2p5/1K1N2k1/R1PB1pn1/1N1n1bbb w - - 0 1 illegal: No possible last move, all moves rejected
2Q2Q2/1nN2r1r/1q2B2K/n1B1RQn1/Q1b1r2N/2q1R1pp/rk1r3P/2n4N w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g3 f5 Ba3 f3 Qc1 f2+ Kd2 f4 Qd1 f3 Bb2 Bd6 Bc1 Bf4+ gxf4 Ra5 Bh3 Ra3 Bf1 Ra8 c4 Ke7 a4 Ke6 e4 h5 f5+ Ke5 f6 g5 c5 d5 a5 b5 a6 h4 c6 b3 f7 b4 f8Q g4 a7 d3 Ke3 d4+ Kd2 h3 c7 g3 Qh6 b2 Qg7+ Qf6 Qe1 b3 Qh7 Ne7 Qe3 Nf5 Qe2 Nc6 Na3 b1Q Ra2 b2 Nc2 Na5 Qe1 Rg8 Be2 f1R Qf2 Rg7 Qh6 Be6 c8Q Nd6 Nb4 Bc4 Ra3 Re1 Qg6 Ndb7 Qgf5+ Kd6 Qf1 f2 Bg4 Re3 Qd1 f1R Nf3 Qa1 Nh4 b1R Nc2 Rb2 e5+ Kd5 e6+ Re5 e7 Qb6 e8Q Rf3 Qh7 Re4 Qf8 Rff7 Re1 Ra2 Be6+ Ke5 Qc6 Rd8 a8N Qab2 Qa4 Q2b3 Qg4 Qc3+ Kd1 Rd5 Be3 d2 Nc7 Rd8 Nb4 Rdd7 Qe2 Rd6 Qd3 Rd8 Ke2 d1N+ Nc2 Rd6 Qhg8 Nb2 Nb4 Rdd7 Nf5 Rd6 Kf3 Rdd7 Qf1 d3 Bc5 d2+ Re3 d1N Nd3+ Kf6 Nh4 Nf2 Qc8 Rd6 Qgf8 Rd8 Nf4 Ke5 Rb3 Rd2 Rb5 Nbd3 Qb1 Nc1 Qbc2 Kf6 Nd3 Ng4 Nf2 Nh6 Nh1 Ke5+ Nf5 Rfd7 Nh4 Nf7 Bd6+ Kd4 Re5 Reg4 Qf5 Re4 Qf4 Ng5+ Kg4 Rdf7 Kh5 Nab3 Kh6 N3a5 Re2 Kd3 Qf5 Kd4 Bc5+ Kd3 Qb4 Kc2 Qa4+ Kb2 Re3 Rh7+
2Q1Q3/k1N2bR1/b5b1/B1rqr1pr/rb4PR/5QN1/1pq1n3/1BNN2bK w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 axb4 h5 cxd4 e5 Nc6 e6 Ne5 Ba6 Ng6 hxg6 fxe6 Be2 e5 Bf1 e4 g4 h5 c4 d5 f4 Kd7 Kf2 Kc7 Kg2 Kb8 a4 b5 g7 e5 c5 h4 c6 e3 a5 e2 a6 e1B c7+ Ka7 f5 e4 f6 e3 f7 b3 Ra5 d3 Ne2 d4 Bb2 h3+ Kh2 b4 Nec3 d2 Bd3 e2 Na4 Bc5 f8N Qd5 Nd7 Rh5 Qc2 d1Q Na3 Nf6 g8Q Ne4 Nf6 Ng3 Qc3 Qc2 Ne4 Bb7 Ba1 b2 c8Q b1B Nc4 b3 Ne5 Bb6 Q3c6 Bb4 Bc3 b2 Qge8 e1R+ Bd2 Ba2 Nac3 Ne2 Ng3 Rc1 Bh7 d3 Nd1 Be3 Be1 d2 Nd3 Bb3 Qf6 Bec5 Qf3 Bf2 Rf1 Bg1+ Kh1 h2 Rc5 Bc4 Rc7 Ba2 Rg7 Bb1 N1f2 d1R Bc3 Re1 Nd1 Nd4 Bg6 Re5 Re1 Ne2 Bh7 Kb6 a7 Ba6 Rf1 Qa4 Be1 Rc5 Nc1 Bg6 Bc3 Bf7 Bb1 Qc2 Be1 Rb8 a8N+ Ka7 Rf2 Rbb5 Nc7 Ra5 Rf1 Ra4 Bd2 Ba3 Ba5 Bb4 Qg2 Bg6 Rf6 Bf7 Rh6 Bg6 Qf3 Bf7 Kg2 h1B+ Kf1 Re3 Qff5 Be4 Qf3 Rh4 Kg2 Beg6 Rh8 Bh2 Kh1 Re5 Rhg8 Rh8 Rh7 Bg1 Rh4 Rh6 Rg7 Rh5
1R1rqQ1b/4N2b/bn1Q1Q1R/2p4B/p5q1/PrqNN3/2bq3b/1kB3KQ w - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 bxc4 h5 Nd7 Rh3 Ne5 Rh1 Ng6 hxg6 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 Kd7 b4 Kd6 d4 Kd5 b5 h5 g7 a5 g6 f5 b6 e5 b7 c5 b8N e3+ Kg2 Ke4 d5 a4 a3 h4 d6 h3+ Kh2 e2 d7 e1B Qd6 f3 Qc7 f4 Bd2 c3 Qd6 c2 Nc6 c1Q Na5 f2 Bc3 f3 Qd1 Rb8 Bg2 f1B Nd2+ Kd3 Bb2 f2 Bb7 e4 Nc6 e3 Ndf3+ Qd2 Qe2+ Kc2 Ne7 Qe8 d8Q Bf5 Rb1 Nf6 g8Q Nd7 g7 Bh7 Nh4 Nb6 Qh5 Ba6 Qgd5 f1B+ Ng2 e2 g8Q Bg7 Nf3 Bg3+ Kg1 e1Q Bc1 Qc3 Q5d6 Qed2 Be4+ Bfd3 Qf8 Rg8 Rb4 Bh8 Bg6 Be4 Ne5 Bf5 Bb2 Kb1 Ne3 Bc2 Nd3 Rb7 Qhh6 Rb8 Bh5 h2+ Kf1 Rb7 Qa8 Rb8 Qhf6 Rd8 Qac6 Rg4 Rb5 Rb4 Bc1 Rb3 Qa8 Nc4 Rb8 Nb6 Rg1 h1Q Qg2 Qh4 Rh1 Qcb4 Kg1 Qhg4 Rh2 Qbc3 Qh1 Na8 Bf7 Nb6 Rh6 Qcc4 Bg6 Qcc3 Bh5 Bh2+
Bb1bR3/K2qn2q/Rn4B1/BQq1p1N1/6b1/4PQ2/b1pN1bR1/3rk1qB w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 h4 g5 Rh2 b5 Rh3 Ra6 Rh1 Rg6 Bb2 fxg4 Bc1 g3 Bh3 g4 Bf1 Rg5 hxg5 Bg7 Rh3 Bh6 Rh1 Bf8 f4 Kf7 a4 Kg6 d4 Kf5 Kd2 Ke4 f5 e5 d5 h5 f6 c5 f7 c3+ Kc2 c4 g6 g2 d6 g3 g7 h4 a5 h3 d7 h2 a6 Bd6 f8R Ne7 g8B Bc7 Na3 b3+ Kb1 c2+ Kb2 b4 Ra2 c3+ Ka1 Rh5 Nh3 g1B a7 g2 Be3 c1B Re8 c2 Nb1 Bf2 Bd2 g1Q Ra6 b2+ Ka2 b3+ Ka3 Rh6 Kb4 Rd6 Be1 Ke3 Nd2 b1B Kb5 b2 a8B Ba2 Bfg2 b1Q+ Kc5 Qb7 Bf7 Qa7+ Kb5 Ba3 Bg6 Bc5 Ng5 B5b6 Rg8 Qf8 d8Q Bg4 Qe8 Nd7 Qb8 Qd8 Re8 Ba5 Bgb7 Nb6 Bg2 Qd7+ Kc5 Qf1 Rg1 h1Q Bgb7 Bd8 Rg2 Qfg1 Bc6 Qh7 Kb5 Kd4 e3+ Kc3 Qf3 Qac7 Ra7 Rd3 Ka6 Qcd6 Bce4 Qc5 Qb7 Nbd5 Qb5 Bac7 Kb7 Nb6 Ra6 Qh6 Nf1+ Rd2 Rg3 Qdd4 Qf5 Qd7 Bh1 Qh8 Ka7 Qh7 Rg2 Bg3 Bf2 Rd1 Qf3 Bh4 Ng3 Kd2 N3e4+ Kc1 Be1 Bg3 Bb4 Bf2 Nc3 Kd2 Ba5 Ke1 Nce4+ Qc3 Nd2 Qc4 Rg3 Qc5 Rg2 Bb8+
rN1qBb2/kr1p4/N1pbBRn1/3P1q2/QQ1R3r/4B2r/bb6/QQ3bK1 w - - 0 1 legal: proof: b4 b5 c4 g5 a4 bxa4 e4 f5 h4 fxe4 b5 gxh4 b6 Nc6 Ke2 Nd4+ Ke1 Nb5 cxb5 Bg7 Rh3 Bh6 Rh1 Bf8 f4 e5 Kf2 a5 g4 h5 d4 e3+ Kg2 e2 b7 e1B b8Q c6 g5 e4 g6 a3 f5 a2 f6 a4 b6 e3 g7 a3 b7 e2 Be3 Beb4 Nh3 e1Q Ng5 h3+ Kg1 h4 Ne4 Bbd6 Qa4 Qea5 Qa7 Qf5 b8Q Ne7 g8B Ba6 Bd3 Ng6 f7+ Ke7 Bc2 Bf1 Nbd2 Rh5 Rc1 a1B Nb3 a2 Nec5 Bb2 Na6 a1R Nbc5 Rb1 Rd1 Rh6 Rh2 Rh7 Rf2 h2+ Kh1 Rh8 Qbb6 Rh6 Nb8 Rh7 Nca6 Ke6 Qbb4 Kd5 Qa1 Rh8 Qe1 Kc4 Bb3+ Kb5 Be6 Rh5 Nc5 Rh6 Q7a4+ Kb6 Nca6 Ka7 Rdd2 Bb5 Kg2 h1B+ Kg1 Bd5 Rf1 Ba2 d5+ Bd4 Bh7 h3 Rd3 Rb2 Qeb1 Rh4 Rd2 Rb3 Rf4 Bf1 Rd3 Ne7 Bg6 Rb7 Bh5 Ng6 Rd1 B4c5 Rdd4 Ba3 Rf3 Bb2 Rf2 Bh6 f8Q Bg7 Qe7 Bf8 Rf3 Bg3 Qeb4 Bgd6 Rff4 h2+ Kh1 Ne7 Be8 Ng6 Rf3 Be2 Kg2 h1R Rf2 R1h3 Kg1 Bf1 Rf3 Qc2 Rf6 Qf5
4N2B/1b1b1qpq/1N1p2k1/1n1Nn1n1/Bbr3PQ/2b2Rn1/1QRQ3Q/n5K1 w - - 0 1 illegal: No proof kernel
1n1r3n/N2nQNQ1/1p1Kb1N1/1n2r3/1np1B3/1PRqB1q1/q3RQqk/N7 w - - 0 1 illegal: No extended proof kernel
1k3nQ1/1q1qQBp1/p3b2N/nBq1qq2/1r2RN2/1R1nb3/R1n2BPK/6B1 w - - 0 1 illegal: No proof kernel
4QKrq/B1BBn3/Rb3k2/2Qn1p2/r1N1pPq1/1R3R1B/N2r1r2/1n1n3q w - - 0 1 illegal: No possible last move, all moves rejected
qBq5/3Q1r2/1q2B1k1/rNb2Nrp/K2R1R2/nn5P/2Q2qQp/n1N1r1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1nb2R2/Rn1B3b/1K5p/2Qnk2p/1NQ1qN1r/R2b1R1P/q4b2/q1B2Bq1 w - - 0 1 illegal: No possible last move, all moves rejected
2r2R2/3KQn1q/1pb1QBNb/3pq3/3BkrB1/BNR1b3/1P4q1/1br1q2N w - - 0 1 legal: proof: f4 c5 g4 h5 d4 hxg4 a3 cxd4 f5 Nc6 f6 b6 a4 exf6 a5 f5 a6 f4 Qd3 Na5 Qd1 Nb7 axb7 Bc5 Bd2 Be7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 d5 Kc6 g5 b8B+ Ke4 h4 f5 c4 a5 h5 a4 c5 g3 h6 a3 h7 g2 e3 g4 Qe2 a2 Qc4 g3 Rh5 f3 Qb4 f4 Nh3 g1R Rf5 f2 Be2 f1B Bd6 g2 Bg4 Bh6 Rf8 f3 Be7 f2 Nd2+ Ke5 e4 d3 Rb1 a1Q Nb3 Qa7 Be3 d2 Rc1 d1Q Rc3 Qe1 B3g5 Bf5 Bgf6+ Ke6 e5 Qdb8 Qe4 Bd3 Bd6 f1Q Nf2 Bb1 Nh1 Qf7 Bde7 Ra4 Qe2 Qbe8+ Kc7 Rc4 c6 Rf4 Qe4 Qg6 Ba3 Qff2 Qe3 Rf1 Qe4 g1B Qe3 Qe7+ Kc8 Qf3 c7 Qg2 Qe4 Qeg7 Kd8 Qg5 c8N Be3 Ne7 Rg1 Ng6 Qa7 Be2 Bh3 Qb4 Kf5 Qe7 Ke4 e6 Qe5 Bg4 Rgf1 Qd6 Qf7 e7 Qg7 e8Q Qf7 Be2 Bd7 Qee7 Bc6 Qdd7 Qef2 Qg4 Rc1 Qge6 Qe1 Bd1 Bg7 Bg4 Nh6 Kc8 Qg8 Kd8 Nf7+ Kc8 Nd6+ Kc7 Bh6 Kd8 Qf7 Kc7 Rg8 h8B Qh7 Bhg7 Ba8 Kd7 Nf7 Bh4 Bb7 Bf2 Rh8 Bf6 Bc6+ Kc8 Bg7 Rd8 Bd2 Bd4 Bh6 Re8 Be3 Rg8 Bb7+ Kd7 Ba8 Rg7 Rc8 Rg8 Bb7 Rf8 Bc6+
R2qb2b/1bqq4/r2r1RNN/7B/Q2B1R2/KR3pPQ/r1pB1np1/6kn w - - 0 1 illegal: No proof kernel
3Qq1r1/4RRb1/B3bN1K/2N2Q2/2ppPn2/1rk1B3/rp2b3/nB2qQQn w - - 0 1 illegal: No proof kernel
B1rnQR1r/bq5Q/1N1Bq1R1/2K2Rp1/6bN/2Q1Qn2/P2p2p1/1b1qnk2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 f4 g5 c3 b5+ Kc5 d5 h5 b3 c4 g3 f6 b4 f7 e5+ Kb5 b2 c5 d3 h6 b3 f5 d4 f6 d2 c6 Ke3 h7 Kf2 c7 e4 Nc3 b1Q Bg2 d3 Ba3 e3 Nf3 b2 Qb3 d1Q Rh6 d2 Nh4 e2 Bd6 e1N Rg6 Nc6 Na4 Qd7 Kc5 Nh6 Nb6 Ne5 Qa3 Rb8 Ba8 Kf1 Qe3 Qe4 Rc1 b1B Rc3 Bg7 f8R g2 f7 Qb7 Rb3 Qe6 Rb5 Bd7 c8Q N5f3 Qc7 Rc8 Ra5 Rg8 h8Q Bf6 Qh7 Bd4+ Kb4 Rh8 Qcc3 Qe5 Rc5 Bg4 Rb5 Qe6 Rf5 Ng8 Kb5 Ne7 Kb4 Nc6+ Kb5 Bf6 Kc5 Be7 Re8 Bd8 f8Q Bc7 Qfg8 Bb8 Ref8 Ba7 Qgf7 Qa6 Qd7 Qb7 Qe8 Nd8+
K1q1Nr2/b2rN3/R1n5/1qr1p2R/P1p1B1b1/1Qn2pQ1/Q1RBk1n1/1Q3b2 w - - 0 1 illegal: No proof kernel
R1nqB1rN/bb2NK2/6N1/1p1RQp1n/5p2/3nBqrk/r2P2N1/2BQ3b w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 c5 Kg4 h5+ Kf5 b3 a4 h3 g4 c4 e4 f6 Kg6 b2 a5 h4 g5 c3 e5 h2 e6+ Kd6 a6 Ke5 d6 b6 e7 h3 e8N c2 d7 Be7 a7 Qc7 d8B Nc6 Nd6 Ba6 Kf7 Bb7 Nc3 b1R g6 Rb3 Nd5 Rg3 g7 b5 Bg2 Qb8 Bb6 Qd8 Be3 Bf8 Be4 Nce7 Bg6 Nc8 Ne7 f5 Ra3 Nf6 g8N Nh5 Rd3 Rb8 a8Q Bg7 Nf6 Rg8 Nfd5 Bf6 Qa7 Ra8 Qb8 Bh8 Ne8+ Ke4 Nf3 Be5 Ne1 Bd4 Ng2 Ra2 Rg1 h1B Nd6+ Ke5 Re1 h2 Ra3 Bc5 Ra8 Ba7 Bg1+ Be3 Nc4+ Ke4 Ke6 Bc6 Nf6+ Kd4 Ng4 Ke4 Nh4 Be8 Nd6+ Kd3 Nf7 Ke4 Ba3 c1N Nge5 Bc6 Nh8 Bg2 Be8 h1Q N5g6 Bb7 Kf7 Nd3 Bc1 Bf3 Bf2 Qf1 Bg1 Bh1 Ng2 Qf2 Re2 Kf3 Qd6 Ba7 Re5+ Qe2 Rd5 Kg4 Be3 Kh3 Qe5 Qf3
2B5/1r3B1Q/3B2q1/pRbnN2b/KQNR1p2/nRqb1R2/1prP3k/r5n1 w - - 0 1 illegal: No proof kernel
Kn6/2Nbnq2/1B2r1Np/6Q1/k2q1Rp1/P1RQRNN1/qp2n3/1B1rbb2 w - - 0 1 illegal: No proof kernel
RRBQ1B2/rbR5/3qPKn1/3Q2r1/qp2N2b/n1rp1k2/N4np1/Qb3R2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 Kf5 g5 h4 b5 a4 d3 c3 f3 e3 d2 h6 f2 h5 b3 a5 b2 h7 b4 a6 g4 a7 g3 h6 g2 Qe1 d1N Bb5 f1R+ Nf3 Nc6 Ba6 Nge7+ Kf6 Ke4 c4 d5 c5 Na5 c6 d4 c7 Bb7 c8R d3 Rc7 Rg8 h8R Nc4 h7 Rg5 Qc3 Rf2 Rf1 Rc2 Qa3 Rc3 Nfd2+ Kd5 Ra2 Nf2 e4+ Kd4 e5 Ke3 e6 Qd6 Ne4+ Kf3 Qb3 Na3 Qd5 Ng6 Ra1 Bh6 Rb8 Bf8 h8Q Be7+ Kg7 f5 Qd8 f4 Ra2 Rb3 Nbc3 b1B Kf7 Bf6 Ra1 Be7 Na2 Rc3 Bb2 Re5 Bc1 Bh4 Bd2 Rg5 Kf6 Kg4 Be3 f3 Bf4 Nd1 Bd2 f2 Be3 Kf3 Bc5 Qd7 Bf8 Qd6 Rg1 f1Q Rh1 Bc6 Bc8 Nf2 Rg1 Qc1 Rf1 Qc2 Rb5 Rb8 a8Q Qa4 Qa7 Ra8 Rb8 Bb7 Qad4 Nc2 Qb3 Qa7 Qbd5 Rc4 Nc1 Qa5 Ra4 Na3 Qa1 Rc3 Na2 Qb5 Ra5 Qa4 Qc4 Ra6 Qd5 Rac6 Ra7 Ra6 Raa8 Ra7
k3r3/b3rBn1/2NPq1Qp/1Rrq1p1Q/3B4/np3qB1/4BnN1/1KRb3Q w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 c5 Kc2 Kc7 g4 b5 a4 Kb7 e4 f3 g5 f2 e5 h6 g6 c4 g7 h3 d6 c3 d5 h2 d7 Qf6 d8B Bc5 d6 Rh7 a5 Ba7 e6 Na6 e7 Bg4 e8Q Ne7 g8B Qe6 Be3 Nf5 Nh3 Nc5 Bh4 Ne4 Nd2 b3+ Kb1 b4 Nf4 b2 Nf3 Ng7 Ng2 f5 Be2 f1Q Nd4 Nf2 Qg6 Re8 a6+ Ka8 Bf7 Bf3 Rg1 h1Q Nc6 Bg4 Ra3 Bf3 Rb3 c2+ Ka2 b1N Bg3 c1R Bd4 Rc5 Kb2 Bb8 a7 Na3 Ka1 Qh4 Rb1 Qhe4 Rc1 Q4d5 Rh1 Nb5 Kb1 b3 Rh4 Rhh8 Re4 Re7 Re3 Qh1 Re5 Qh3 Qh1 Qg4 Qhh5 Rhe8 Bc4 Bd1 Bd3 Qgf3 Be2 Kb7 a8Q+ Kc8 Qa5 Kb7 Qe1 Ka8 Qeh1 Ba7 Qh7 Rc4 Q7g6 Na3+ Ka1 Qde4 Rb5 Rc5 Kb2 Q4d5 Ka1 Nc4 Kb1 Na3+
k7/1RB1Nn2/2p4n/2Qr2RN/1q2QP2/pB3Bpn/b2q1q2/1BK1bRrr w - - 0 1 illegal: No proof kernel
R3Nq2/4Rrn1/1pb1R1n1/NPrp1N2/3N4/2nQK1p1/qqB1B3/1rk3bQ w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 hxg4 d4 c5 b5 cxd4 Ba3 Nc6 Bd6 Nb8 Bb4 axb4 Ke2 Kf7 h4 Kf6 a4 Ke5 f4+ Ke4 c4 e5 h5 d5 h6 g5 a5 g3 h7 d3+ Kd2 b6 a6 g4 c5 g2 a7 b3 c6 b2 f6 Bb7 f7 Nd7 f5 Nh6 c7 Bc6 c8B Bd6 f6 Qf8 Rh3 Nf5 Ne2 g1Q Na3 b1Q Nc4 Ng7 Na5 Qf2 Rh6 Qa2+ Qc2 Rb8 a8R Rb7 Re1 Qd4 Rg6 Qdb2 Nd4+ Kf4 Rh6 e4 Nf5 Ne5 Be2 Ng6 Be6 Rg8 h8Q Rc7 Bf1 Kf3 Be2+ Kf2 Bc8 Bh2 Bd7 g3 Be8 Qfa3 f8N Rf7 Ne6 Qf8 Qh7 Rh8 Nc7 Rg8 Bd7 Rh8 Ne8 e3+ Kd1 d2 Qd3 Qd6 Be6 Rhf8 Qh8 Rc7 Bg8 Rff7 Bh7 Qf8 Rh4 Bb7 Re4 Rc5 Re7 Bc6 Bf1 Kg1 Ke2 d1N+ Kf3 e2 Re6 Rb7 f7 Nc3 Ke3 Rd7 Rd1 e1R+ Be2 Rf1 Rd2 Rb1 Rd1+ Kg2 Re1 Qd6 f8N Rf7 Re7 Qd8 Ne6 Qb8 Bd1 Qd6 Re2+ Kf1 Ned4 Qf6 Rf2+ Ke1 Be2 Ne6 Rf4 Qg7 Re4 Qf8 Nh6 Ng7 R4e6 Ne5 Be4 Ng6 Nhf5 Qa4 Qc4 Qaa1 Bc2 Qaa2 Kf3 Kd2 Qd3+ Kc1 Ke3 Qa4 Qh4 Qaa1 Qhe4 Qaa2 Qh1+ Bg1+
BRr1qq2/2b5/bpn1kNKQ/P3qn2/Q4b2/1rN2p2/RRnBp1Q1/2Q5 w - - 0 1 illegal: No proof kernel
k1r1Q3/1Rr1QB2/1pN1pB2/1pRPn2B/bKn5/qR1q4/2r2B2/b4Nbq w - - 0 1 legal: proof: e4 d5 b4 f5 h4 fxe4 c4 g5 cxd5 gxh4 b5 a6 Qf3 axb5 Qe2 Qd7 Qd1 Qd8 g4 Kd7 a4 h5 d4 c5 Kd2 Kc7 Kc3 e3 f4 e2 g5 e1Q+ Nd2 b6 d6+ Kb7 a5 c4 d7 h3 g6 h2 g7 h4 f5 h3 f6 Rh7 f7 Nc6 Rb1 Nf6 g8B Qg3+ Ngf3 Ne5 Qe2 Ne4+ Kb4 c3 Rb3 Bg7 f8Q c2 Bf7 Nd6 Qe8 Ndc4 a6+ Kb8 Ba3 c1B a7+ Kb7 Rg1 h1R d5 h2 Nd4 Qd3 Bh3 Bb2 Rc1 Ba1 Rc2 Rc1 Nf1 h1Q Nc6 Bh8 Rcc3 Rc2 Bg4 Qc7 d8B Bf5 Qe4 Rc8 Bgh5 Ka8 Qh4 e6 Qhe7 Bf6 Bc1 Bh4 Be3 Bf2 Bc5 Bg1 Bf2 Nd6 Rc5 Ndc4 Q7d7 Bg4 Bf6 Bd1 Qde7 Qd6 Q7d8 Kb7 a8R Rg7 Bg8 Rd7 Bgf7 Rdc7 Qde7 Qhf3 Nd4 Qh1 Rb8+ Ka7 Rb7+ Ka8 Rc3 Rc1 Nc6 Ba4 Rb3 Rc2 Bd1 Nf3 Be2 Qg3 Bd1 Nfe5 Bdh5 Qge3 Ng3 Qc1 Nf1 Qa3+
2R5/2B1nP2/NpqrnK1p/2r1QB1r/2Q1p2n/B1RbqN2/4R3/k1qB2b1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kd4 b6 f4 h3 a4 e3 g4 h6 f5 b3 a5 c6 d6 h2 d7 e2 a6 e1N a7 e6 Bd3 b2 Na3 b1Q Nc2 Qb5 Ra3 Ne7 Nf3 Ba6 Qe2 Qe8 d8B Nd7 Nb4 Nc5 Rc3 Rc8 a8B Ng2 Re1 h1R Bc7 Rh5 Ba3 Nh4 Qh2 Rg8 Re2 Rg6 Bc2 Qa4 Bd1 Bd3 Bb7 Qb3 Ba6 Qc2 Bc4 Qb3 Na6 Qc2 Ba2 Qb3 Bb1 e5+ Ke3 Ne6 g5+ Kg7 Qf4 c5 f6+ Kf7 Qc4 Qc6 Qb5 c4 Bbc2 Be4 d4 Bd3 d5 Bg7 d6 e4 d7 Bh8 d8R Bg7 Qe5 Bh8 Bb1 Bg7 Rc1 c3 Ba2 c2 Re8 Nd4 Kf4 Ne6+ Kg4 Qbc3 Bd5 Qd2 Bc4 Qe3 Bb5 Qc4 Bd7 Qc6 Rb1 c1Q Rb3 Rd8 Bc8 Rd5 Rc3 Rc5 Bd7 Bh8 Ra8 Rg8 Rb8 Rd8 Bc8 Rd6 g6+ Kf8 g7+ Kf7 Bd7 Kg6 Rc8 Kf7 Qh2 Kg6 f7 Kf6 g8Q Bg7 Qe8 Bf8 Qf2 Bg7 Qf1 Bh8 Ng1+ Ke5 Nf3+ Kd5 Rec2 Bd4 Re2 Nf8 Bf5 Ne6 Rb3 Kc4 Qh8 Qed2 Qe5 Bg1 Rc3+ Kb5 Rg2 Qe3 Rgc2 Ka4 Re2+ Qc2 Rc4+ Kb3 Rc3+ Ka2 Bg6 Qcd2 Re1 Bb1 Qc4+ Ka1 Re2 Qc1 Bh7 Ng8 Bg6 Ng2 Bh7 Bd3 Bg6 Rh4+ Kf5 Ne7+ Kf6 Rh5 Bf5 Nh4
7Q/b1NB1pQ1/1R4p1/nN2Q1P1/kq4rb/2nqK1p1/2q2rb1/2RB1BrQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Be3 cxd4 Bf2 h4 Bg3 hxg3 Kd2 a5 e4 d5 h4 Kd7 c4 a4 b4 g6 e5 a3 e6+ Kd6 e7 a2 e8B d3 h5 d4 h6 f3 h7 f2 b6 Nf6 b5 Kc5 b7 Kb4 c5 Nd5 b6 Qe7 c6 Nc3 c7 Ra4 Bd7 Nc6 b8Q Na5 Ne2 Bb7 c8B Bg2 b7 Bh6+ Nf4 Bg5 Qe5 Bh4 Qf3 Kb3 b8Q+ Qb4 Nd5 Re8 Qh5 Re1 h8Q Rc1 g5 Re1 Be2 f1R Q5h7 Rf2 Na3 Rg1 Rc1 a1B Nb5 Bb2 Ba6 Ba1 Rf1 Bb2 Q7g7 Bc1+ Ke1 Be3 Bd1+ Rc2 Nd6 Qb7 Be2 Bh3 Rh2 Rc4 Be6 Ka4 Qh1 Qe7 Rf2 Bg2 Rf6 Rd2 Bf3 Rf2 Bf5 Qb7 Qbe8+ Qb5 Qe5 Qb4 Bh5 Nb5+ Kd1 d2 Nc7 Nc3+ Kc2 Qc5 Rc1 d3+ Kb2 d1Q+ Be2 d2 Bd7+ Qc6 Bh5 Re4 Bf1 Ba7 Ndb5 Qc4 Rb6 Ref4 Bhe2 Rg4 Bf3 Qde2 Kc2 Qe3 B3e2 Qb4 Bf3 Qed4 B3e2 Qdc4 Bf3 Qa2+ Kd3 d1Q+ Ke3 Qac2 B3e2 Qd5 Bd1 Qd3+
4bNBk/4pr2/1R5q/Qr2N2n/bpR3Br/q2K4/1bPn1pQ1/N2N2Bq w - - 0 1 illegal: No proof kernel
r1RN2KQ/2B1p2B/3B2b1/7p/q2rN1r1/Bk1nQP2/p1qRN2b/1bq4n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 b4 Kd5 b6 h5 b7 a5 c3 a4 b5 h3 g5 a3 b6 a2 g6 h2 g7 e3+ Kd3 e2 Ba3 e1Q Qe2 Qc1 Qe3 Qe8 Ne2 Nc6 b8B Nh6 g8N Nf5 b7 Bh6 Nd2 Ng3 Bbd6 Bf4 Nh6 Rg8 b8B Rg4 Ne4 Qg6 Rg1 h1B Nf7 Bg2 Nd8 Nh1 Rb1 Bh2 Rb2 Qh7 Bdc7 d6 Rc2 Bf5 Rd2 Bg6 c4+ Ke5 c5 Kd5 Ng3 Bh3 f3 Nb4+ Ke2 Kc4 c6 d5 Bd6 Qb2 c7 Nd3 c8Q+ Kb3 Bbc7 Qc1 Rg2 Rf4 Rg1 Bhf5 Bh3 Rg4 Rgd1 Qh8 Rc2 Qe8 Rdd2 Qa4 Rc5 Bh7 Rcc2 Bfg6 Rc4 Rf4 Be6 Rg4 Bg8 Bf5 Rc6 Bhg6 Bh7 Qb2 Rdc2 Rf4 Nc3 Nb4 Ba5 Qa1 Ne6 Qg1 Qh8 Rg4 Nd8 Qc1 Rc8 Be4 Bac7 Bef5 Qd2 d3+ Ke3 Be4 Kd4 Bef5+ Ke5 d4 Qe1 d2 Qe3 d1Q Re2 Bb1 Ke6 d3 Nge4 d2 Rf2 Qdc2 Rg2 Bf5+ Kf7 Bg6+ Kg8 d1R Rf2 Rd3 Rd2 Rd4 Ne2+ Nd3
8/1R1Np1B1/6K1/p1bRQrQ1/R1NnB3/r4qNk/1Rq1pb1P/1br1q2n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kf6 f4 Kf5 b4 d5 b6 g5 b5 e3 Kd3 g3 c5 e2 c6 Kg4 f5 g2 b7 Nf6 b6 Ne4 f6 Bh6 c7 Bf5 c8Q Nc6 b8N Qf8 Nf3 g1B b7 Bf2 Nbd2 Ng3+ Ne4 Bg7 f7 Rh5 Ra4 a6 Kd2 d3 Nd7 Bgd4 b8R Bc5 Qc7 d4 Bg2 Bh7 Rf1 Nh1 Nfe5+ Kh4 Rd8 g4 Nc4 g3 Qe5 Rf5 Bb2 Ra7 Bf3 g2 Qc1 g1Q Ng3 Kh3 Rd1 Qf1 Rb8 Qc8 f8R Qg2 Be4 Qf3 Rb7 Bg6 Qc3 Bh7 Kc1 d2+ Kc2 Bg6 Rb1 d1R Qe3 Rc1+ Kd3 Ra8 Rd8 Qc7 Kd2 d3 Qg5 Nd4 Bc3 a5 R1b2 Rc8 Nb8 Ra1 Rd5 Ra3 Nd7 Nb5 Kc1 d2+ Kc2 Bh7 Ne3 Nd4+ Kd3 Qg2 Nc4 d1Q+ Rd2 Qa1 Rdb2 Qe1 Qe6 Nb3 Bg7 Qc6 Qe5 Qgf1 Bf3 Nd4+ Ke4 Rf7+ Qg6 Ba7 Nd6 Qg2 R7b5 Qcc1 Rb7 Rcc3 Nc4 Bc5 R2b3 Qcd1 Rb2 Rc1 Qgf5+ Kh4 Kf4 Qd3 Qff6+ Kh3 Kg5 Qdd1 Qff4 Bb1 Be4 Rf5+ Kg6 Qf3 Qg5 Qc2
4NN2/3p1Q1n/BNkP4/q1nbp2B/5brr/R1b5/K1Nnp2r/1Q1R1q1B w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Ba3 g5 axb5 gxh4 b6 Bb7 b5 Bc8 Bb4 cxb4 c4 e5 f4 h5 g4 a5 d4 b3 Kd2 h3 Kc3 a4 Kb2 h2 f5 e3 c5 e2 b7 h4 b6 h3 c6 Rh5 c7 Na6 b8N Qf6 b7 Rh8 g5 Ke7 d5 Kd6 g6 Ra7 g7 Ne7 g8B Qg6 f6 Nc5 f7 Rh4 Nd2 Bh6 f8N Bf4 Bf7 Ng8 Ra3 Nf6 Bg2 Nh7 Qf1 Qc2+ Ka1 b2+ Ka2 Qc3 Bh5 b1N Ngf3 Qa5 Nd4 Ra8 Rg1 h1R Nc2 h2 Na6 Rg4 b8Q Bb7 Qe8 Rd8 c8B Rh4 Nf3 Nd2 Qb1 Bc6 Bb7 Rb8 Bc8 Rb4 Rd1 Rd4 Nc7 Rg4 Rb3 a3 Ba6 Ba8 Qf7 Bb7 Ka1 a2 Ra3 Ra4 Kb2 a1B+ Ka2 Rd4 Bc4 Bc3 Ba6 Rg1 Bh1 R1g2 Nfe1 Rc4 Nd3 Rf2 Ndb4 Bc6 Bg2 h1Q Bf3 Qf1 Bh1 Nce4 Ne8+ Kc5 d6 Bd5 Nc6 Rh2 Na7 Rgh4 Nc8 Kc6 Nb6 Nc5 Na4 Be3 Nb6 Rcg4+ Nc4 Be4 Nb6 Bf4 Nc7 Bg2 Ne8 Bd5+
r5r1/qNp4B/4qQ1K/pbbq1n1B/R1N1N2b/R1n4k/2p1Pn1B/2N1Q3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 f5+ Kh5 a5 g4 f3 d4 c3 b4 f2 d5+ Ke5 b5 h6 d6 f4 b6 c2 d7 a3 b7 f3 g6 a2 g7 Bc5 g5 Kf5 g6 Ne7 g8N Nbc6 b8Q Nd5 g7 Nc3 Bf4 Nd4 Nh3 Ba6 Qb2 Bb5 Bg2 f1Q Bh2 f2 Nd2 Qg1 Bf3 f1Q Nf6 Rg8 Qe1 Qc8 d8N Qfg2 Nfe4 Qe6 Nc4 Qe3 Rd1 a1B Rd3 Qeg1 Nf4 Qe3 Kh4 h5 Rg1 Qh1 Rg4 Qeg1 Nb7 Qf2+ Kh3 h4 Re3 Qfg1 Nd3 Qf2 Nc1 Qfg1 Rg3 Kf4+ Bg4 Nf5 Rd3 Qd4 Bh5 Qdd5 Rd4 Qg1 Na3 Qf2 Ra4 Qe3 Qb1 Bb2 Nc4 Bba3 Qb3 Be7 Qb1 Qa7 Qb2 Bac5 Qa1 Rgd8 g8B Bg5 Bh7 Rg8 Kg2 h3+ Kf1 Na2 Qf6 Bh4 Rd3+ Rg3 Rda3 Nc3 B5g6 Kg4 Be8 Nd4 Kf2 Rg1+ Ke3 Rg2 Bg1 h2 Bh5+ Kh3 Kf4 h1N Bh2 Nf2 Ncd6 Nf5 Nc4 Bg3+ Kg5 Rg1 Kg6 Bh4+ Bg3 Nd4 Kh6 Rg2 Be5 Rgg8 Bh2 Nf5+
q1N4N/nRp1Bb1b/BP1B3k/K3n1pN/Nq1Q1pq1/1Q2Rr2/3b4/5rn1 w - - 0 1 illegal: No possible last move, all moves rejected
QB1R1N1k/N1pN2q1/pb6/1N6/Knr1B2b/1PR2Q1p/n2R1qr1/n4br1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 g4 h5 d4 f5 Kd2 Kf7 Kc2 Kg7 e4 h3 d5 f3 e5 f2 e6 h2 d6 a6 g5 h4 d7 f4 g6 c3 Kb3 f3 b6 c2 b7 Qe7 d8N Nc6 b8N Nb4 Bg2 f1N Ra3 f2 Nc3 Nd2+ Ka4 f1Q Nd7 Qf2 Qf3 Nf6 Nge2 Nfe4 Nc6 Nb3 Rd1 h1R Rd2 Rg1 Nb5 Na1 Rc3 h3 b3 Bb7 Nf4 Rh4 Bh1 Kh8 Nca7 Qg7 e7 Rb8 Ba3 c1B e8R Rhg4 Bb2 R4g2 Ne6 Bd5 Rd8 Bc4 Ba3 Bf1 Bb2 Rb6 Ba3 Rc6 Bb2 Qf6 Ba3 Rc4 g7+ Kh7 Bb2 Bc5 Ba3 Bb6 g8Q+ Kh6 Nef8 Qg7 Qd5 Bb2 Qa8 Bc1 Ra2 Bg5 Rd2 Bh4 Bc1 Nf6 Bb2 Nfd5 Ba3 Na2+ Bb4 Rc6 Bc5 Ndb4 Qf4+ Rg5 Be4 Ba5 Qf3 R5g2 Bb6 Rc5 Nc6 Rc4 Ba7 Bb6 Bb8 Qf7 Nf6 Kg7 Nca7 Kh8 N6d7 Qg7
2B1BR2/2pnp1B1/N3r2p/q3Rb2/K3brr1/Q1P4B/N1Rn1Q1q/1n1kb3 w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 d5 f3 g5 hxg5 dxe4 Rh4 exf3 Rh6 Qd5 Rh1 Qd8 d4 Kd7 Kd2 Kc6 a4 Kd5 g4 Ke4 g6 b5 g5 f5 c3 b3 a5 f4 g7 b4 d5 f2 d6 f3 g6 b2 Kc2 Bb7 Kb3 Qd7 a6 Qe8 a7 Bc8 d7 Nf6 d8R Rg8 Bh6 Nbd7 Na3 b1B Ka4 b3 Bh3 f1R Ra2 b2 Qd2 f2 Ne2 Kf3 Nc2 Ne4 Nc1 Rb8 a8B Rb6 Bb7 Re6 Nb4 Qf7 Re8 Qf4 Na6 Qh2 Qd6 Bd3 Qa3 b1N Bc6 Bb7 Rc2 Bc8 Bb5 Ned2 Na2 Ke2 Rg1 Bb7 Rg5 Be4 Re5 Kd1 Bc6 Bf5 Bb7 Bde4 Bc8 Rg1 Rd8 f1Q Re8 Rh8 g8B Rg4 g7 Qd3 Bf7 Qd5 g8Q Bg7 Nb8 Bf6 Rf8 Bh4 Be8 Be1 Bg7 h6 Qf7 Rg8 Na6 Rf4 Qf6 Qc5 Qh4 Qb6 Qf2 Qa7 Bh8 Rgg4 Bf6 Qc5 Bg7 Qa5+
N3q1QB/npQN3B/7B/R2b2p1/5BKp/bb2qPn1/R1rkNr2/rq6 w - - 0 1 illegal: No proof kernel
2k4b/1p2BrR1/q1p1n2Q/1qR1QbrN/N5Rp/2KBP1qn/7r/1Rn1N3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 f5 a4 h5 g4 c6 a5 h3 a6 b3 e3 f3 g5 b2 d6 h2 a7 f4 d5 f2 g6 h4 g7 f3 Kc3 Qg5 Ra5 Rh7 Rc5 Ne7 g8R Rf7 Bd3 f1N Rg7 f2 Nf3 Qg3 Ne1 Nd2 Qh5 f1Q Qe5 Ng6 Rg1 Kd8 d7 Na6 Rg2 Rb8 a8R Nc7 Ra1 h1R Rg1 Nf4 Ra4 Nh5 Rag4 Nb3 Bd2 Ne6 Bc1 Ke7 d8N Kd7 d6 Nhf4 Bd2 Nh3 Bc1 Nef4 Ne6 Rh2 Bd2 Nc1 Rh1 Ng2 Nf4 Qe2 Nh5 Ngf4 Rf1 Ne6 Rg1 Kd8 d7 Ra8 Rh1 Ra5 Rf1 Bd6 Rh1 Kc7 d8Q+ Kb8 Qdg5 Bc7 Bg6 Qa6 Bd3 Bd7 Qh6 Kc8 Kb4 Bd8 Nc3 Bf6 Na4 b1Q+ Kc3 Qbb5 Rf1 Nd4 Rg1 Bf5 Rf1 Ncb3 Bc1 Ne6 Ba3 Nc1 Nc2 Nb3 Rb1 Nc1 Ne1 Qab6 R7g6 Bh8 Rg7 Q5a6 Rcc4 Rd5 Be7 Qbb5 Rc5 Bg6 Qd6 Rg5 Qe5 Bf5
3nQ3/1p1P3b/2kB2KB/3qqp1n/R1p1rN2/2Q1bN2/r1RbrQQ1/2qB4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 f5 a4 c5 d4 g5 e4 f3 Ke3 g3 h5 b3 d6 f2 e5 g4 Kf4 g2 h6 b2 e6+ Kc6 a5 c4 d7 g3 a6 Qa5 Kg5 Kc7 d8B+ Kd6 d5 Qb4 a7 Nf6 h7 Qc3 e7 Bh6+ Kg6 Nh5 e8Q Qe5 Nc3 b1R Be2 f1Q Qe1 Rb2 Ra4 Qf3 Qf2 Be6 Bd1 Re2 Rh2 Nc6 Be7+ Kc7 Qg8 Nd8 d6+ Kc6 d7 Bd2 Bd6 Qfd5 Nf3 g1B Qe8 Rf8 h8Q g2 Qg7 Re4 Ne2 Bg8 Nf4 Rf7 Qh8 Re7 Qf6 Rb8 a8Q Rc8 Qe1 Bge3 Qf2 g1Q+ Qg2 Qf1 Qa7 Ra8 Qd4 Qd3 Qc3 Qb1 Qh4 Ra6 Rb4 Ra2 Ra4 Bb6 Qhf2 Re2 Bca3 Bbe3 Bac5 Qc1 Bd4 Qh8 Bg7 Re4 Bh6 Qhe5 Qff1 Be1 Qg4 Rec2 Rd2 Rcb2 Qgg2 Rc2 Qff2 Rcb2 Rd4 Re2 Rd3 Qb1 Rd2 Qc1 Rb2 B1d2 Rc2 Bh7+
N3K1B1/p1q1B1B1/Rq1R1r2/3rP1N1/N1n2ppr/B2k2qQ/5b2/b4bnQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 g5 h5 f5 b6 d5+ Kb5 g3 c4 f3 b7 f2 h6 g2 c5 f4 c6 g4 h7 d3 c7 d2 Ba3 d4 Nh3 Nc6 b8B g1B Nc3+ Ke3 Qb3 d1Q Na4+ d3 Ng5 Nge7 Rh6 Ne5 Rd6 Qc1 Qc3 Bf5 c8N Nc4 Ncb6 Nd5 Kc6 Bg7 b5 Be6 Bg2 f1Q Qe1 Kd4 e4 d2 Bh1 Rf8 h8Q d1R Qh3 Qd3 Bc7 Rb8 Na8 Qg3 b6 Bf2 b7 Kd3 Bb6 Bg8 Bbc5 Qb6+ Kd7 Rf6 Ra2 Rbf8 b8B Rc8 Bd4 Nc3 Ra1 Rc5 Ke8 Ne2 Bg2 Bh8 Qeh1 Ng1 Bc7 Bg7 Bd8 Rd5 Be7 Be6 Bf3 Rd2 Bd1 Bc8 Bb3 Ba6 Ne6 Rh5 Ng5 Rh4 Ba2 Ne5 Bg8 Qcc7 Ra2 Nc4 Ra1 Bh8 Ra2 Rf5 Bg7+ Rd5 Bh6 Ba1 e5 Rb2 Bg7 Rb5 Nf7 Rc5 Ng5 Rc6 Rd8 Rf6 Rd6 Bb5+ Rd7 Qcd6 Nc3 Na5 Bb2 Qdc7 Bc1 Bc4 Rd6 Kd4 Bb2 Bd3 Ra3 Nc4 Ra6 Be2 Ba3 Kd3 Na4 Bf1
R3nr1N/pqbQqq2/BP2b1NN/Qr3b1B/K1R5/1n1Np3/7p/1k3rB1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 b4 d5 c4 h5 Kc2 e3 Kb3 d3 f5 d2 c5 e2 c6 e1Q c7 e4 g5+ Ke5 g6 Kd4 b6 h3 g7 h4 b7 h2 b5 h3 f6 Be7 f7 Nf6 f8N Bd6 g8N Nbd7 b8Q Qe8 b6 Qf7 Be2 Ne8 Bh5 Kd3 Ka4 d4 Na3 Rh7 Qg4 d1R Nc4 Kc2 Ng6 d3 Nf3 d2 Nh6 Bf4 Ra3 Kb1 Nfh4 Rh8 Rg1 h1Q Nb2 h2 Nd3 Rg8 Nh8 Rg5 Ra2 Rb5 Rc2 Qg2 N4g6 Nc5+ Ka3 Qh1 Qd7 Nb3 Ka4 Qh4 Rg4 Rf1 Rc4 d1B Be3 Bc2 Bg1 e3 Qb7 Qhd5 Qa6 Qhe7 Qa5 Qb7 Rh4 Bd6 Rhf4 Qg7 Rf8 Qgf7 Qg4 Be6 c8B Bb8 Qd4 Bc7 Qd7 Qd5 Ba6 Qb7 Nf2 Bcf5 Nd3 Rd8 Qc8 Rd4 Qd7 Rdf4 Rg8 Ng7 Rd8 Ne8 Ra8 Qh7 N6f7 Bg4 Nd6 Rf8 Nf5 Qhf7 Nh6 Bgf5
1kr5/p3q1rP/Q2b2bR/Kq1pn1pB/4b2Q/Q6R/n3nB2/N1r1NQ1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 e4 Kd7 b4 Kc7 c4 g5 h4 f5 e5 f3 c5 g3 b6+ Kb7 e6 d3 Kc3 g2 h5 d2 h6 f2 h7 f4 e7 f3 e8B Nf6 b5 Be7 Kb4 Bd7 Rh6 Na6+ Ka5 Qb8 c6+ Kc8 b7+ Kc7 Ra3 Bh3 Bh5 Nd7 Qe2 d1Q Be3 Qe1+ Nd2 Nb4 Nb3 Rd8 Na1 Ne5 Qa2 Rc8 b6+ Kd8 Qc4 Bd6 Qh4 Bf5 c7+ Kd7 Bd3 f1R Bf2 Bg6 Be4 Na2+ Rc3 Qe3 Rb3 Rg8 Rd3 Qe8 b8Q Rc1 b7 Rg7 Qc8+ Kc6 Qch3 Rc8 b8Q Qe2 Ra3 Qe7 Qb3 Qb2 Qd3 Kb7 Qf1 Qe2 Bb6 f2 Nf3 g1N Ne1 Qc4 Bh1 Ne2 Qb3 Be4 Qb4 Ka8 Rh3 Qb3 Qa3 Qb1 Qg2 f1B Bf2 Bg6 Qg1 Bg2 Qf1 Qb7 Qc3 B2e4 Qa3 Rh8 c8Q+ Qb8 Qa6 Rhc8 Q3d3 Qbb7 Qc3 Kb8 Qa3 Qb5+
1qNr4/p1r1B1p1/1N5Q/R3b1qQ/5r2/qB1Pp1k1/b1nbnR1N/BN3K2 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 h4 Kd7 b4 Kd6 f4 c5 f5 Ke5 f6 Kf4 h5 e5 b6 g3 b5 g2 h6 e3 f7 e4 d3 c3 b7 c2 b6 c4 h7 c3 Ra5 Na6 b8Q+ Bd6 f8B Ne7 b7 Be6 Bb2 c1Q Qc8 e2 b8N c2 Qc5 Kg3 Qc6 Be5 Rh2 Nb4 Ba1 Qa3 Nf3 c1R Nd7 g1Q Rf2 Nf5 Nh2 Ba2 Qh6 Rc7 Be7 Qb8 Nb6 Rf8 h8N Nd4 Nf7 Rd8 Nd6 Nbc2+ Kd2 Rf8 Ndc8 Rf4 Bh3 Qg2 Qh1 e1B+ Kd1 e3 Be6 Bd2 Bb3 Qh3 Qh5 Qf5 Qc6 Qg5 Qch6 Nf5 Ke2 Nfd4+ Kf1 Ne2 Nd7 Qb5 Ndb6 Rb8 Nd6 Rd8 Ndc8 Qbb4 Nc4 Qb7 N4b6 Qb8
b5nq/1R1n1K2/Q2RR1bB/bp3bpR/2NNP3/1Bk3p1/3rbQ2/3Br2n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 Kd6 e4 Ke5 a4 Kd4 h5 c5 d6 b5 a5 f5 d7 b3 a6 b2 h6 c4 h7 g3+ Kf3 c3 a7 c2 Rh6 Bb7 Re6 Bb4 Be2 Ba5 Na3 b1B Nc4 Ba2 Qf1 g6 d3 Kc3 d4 Qe8 d8R Nd7 Be3 c1N d5 Nd3 d6 Nf2 Bd1 Nh1 Qf2 Rc8 Bc1 Ba8 Be3 Rc5 Rb8 Bb3 Rb7 Rd5 Rb1 Rd2 Ne2+ Kd3 Nd4 Kc3 Kg2 f3+ Kh3 Ba2 Bh6 f4 Kg4 g5 Kf5 Qd8 Kg6 Qb8 Qf1 f2 Kf7 f3 Qe1 f1B Qf2 Be2 Ra1 Nf8 d7 Qe5 d8Q Nd7 Qc8 Bb3 Qg1 f2 Qc6 f1B Qa6 Bh3 Qf2 Bf5 Ra4 Ngf6 Rb4 Rd8 h8R Ng8 Ra4 Rd3 Ra2 Re3 Rd2 Ba2 Bf8 Bb3 Rh5 Qh8 Bh6 Bd3 Rg6 Re1 Re6 Be2 Nc2 Rc8 Rdd6 Rc5 Nd4 Rd5 Nf3 Rd2 Nd4 Bh7 Rbb6 Bb7 a8B Bc8 Bd5 Bb7 Ne5 Ba8 Rb7 Bbc4 Qa7 Bg4 Qa6 Bce2 B5b3 Bgf5 Nc4 Bhg6+
B3r3/qn2Q2R/3nB2P/b3RN2/b2KnpN1/1rBNpQp1/6n1/b2Nn1k1 w - - 0 1 illegal: No proof kernel
1Q1Brk2/2Rn4/B6p/1RK2n1b/1pb1R3/1P1Rp3/1N1bb1Qb/B1qN1n1r w - - 0 1 legal: proof: h4 d5 e4 a5 c4 f5 cxd5 fxe4 h5 a4 h6 a3 b3 gxh6 Qc2 h5 Qc3 h4 Qb2 axb2 Ke2 b5 Ke3 e5 f4 c5 g4 h6 a4 b4 d4 c4 g5 c3 a5 h3 a6 c2 f5 h2 f6 Bh3 g6 Qd6 a7 Na6 g7 Qc7 d6 Rc8 a8Q Bd7 d5 Nc5 Ra5 Ne7 g8Q Bg4 Qb8 Nd7 Ne2 Bh5 Na3 b1B Bb2 c1N Ba1 Bd3 Rb5 Bc4 Nc3 Ne2 Qg2 Ng3 Nd1 Rd8 Rg1 h1B Be2 Bg7 f7+ Kf8 Re1 Re8 Bd3 Rg8 Bf1 Bce2 Nc4 Qc6 Ncb2 Nef5+ Kd2 Bc4 Re2 e3+ Kc2 Nf6 d7 e4 d8R Nd7 d6 Be5 Rc8 Rg4 Rc7 Rh4 Rd2 e2 Rd3 e1B Be2 Nb6 d7 e3 d8B Bd2 Bf1 Nd7 Be2 Kg7 f8R Rh2 Rf6 Kg8 Rg6+ Kf8 Rg4 Nf1 Rf4 Rh3 Re4 Bh2 Rdd4 Be6+ Kd3 Qc1 Rdd5 Ne7 Rd6 Bc4+ Kd4 Rh4 Qg3 B1f3 Qg2 Bfg4 Bd3 Be2 Rdd5 Nb6 Kc5 Nf5 Rd6 Bg1 Rd5 Rh1 Rdd4 Bh2 Rd5 Beg4 Be2 Bf3 Rd3 Nd7+ Kc6 Qb1 Rbb7 Rg1 Rc3 Bcf7 Ba6 Be2 Rd3 Bc4 Rb6 Qc1 Rb5 Nf6 Kb6 Rh1 Kc5 Nd7+
2R2br1/1K3n1N/N1bNp3/1n3RnN/Bp2pq1k/3nQrn1/Qr1B1P2/6Q1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Kc5 h5 d4+ Kf5 a4 b5 g4+ Kf6 d6 b3 d5 c6 g5+ Kf5 a5 h3 g6 b2 d7 h2 a6 h4 g7 b4 a7 h3 d6 Bb7 Nf3 Kg4 Ra5 Nh6 g8N Qc7 d8Q Nf7 d7 Qf4 Kb6 Na6 Nc3 b1R Nd5 Nc7 Bb5 Rb2 Ba4 Nb5 Ng5+ Kh4 Ngf6 Rg8 Qe8 Rd8 Rg1 h1N a8Q h2 Nh5 Ng3 Nh7 h1N Bd2 Rc8 d8N Rc7 Ne3 Rd7 Qe1 Rd3 Nd5 Rf3 Nc7 Ne2 Qd7 e6 Qd3 c5 Bd1 c4 Qe3 Nbc3 Rf5 Nb5 Qa2 Nhg3 Na6 Ba8 Rf1 Ng1 Ba4 Nh3 Nb7 Nhg5 Nd6 Bd5 Qeb1 Ba8 Rc1 Bb7 Rc5 Ba8 Rc8 Bc6 Qba1 c3 Q1b1 c2 Qba1 Bd7 Kb7 Be8 Rc5 Bd7 Rf5 Be8 Rf1 c1N Q1b1 Nd3 Rc1 Qg4 Rc8 Qf4 Qg1 Bc6+
1Kr5/6b1/bBp2n2/3qr2R/1QQN1nBn/1Qn5/1Pr1pnQp/kN1B2R1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 d4 h5 g4 a5 g5 e5+ Ke3 c3 f4 h3 f5 h4 g6 c2 b6 h2 g7 a4 b7 h3 f6 c6 f7 a3 Ne2 Kc4 d5 Kb3 d6 a2 d7 Rh5 Nbc3 Ne7 g8B Bg7 f8Q+ Nd5+ Kf2 e3+ Kf3 e4+ Kg3 Ra7 Qd3 Re5 Bd2 c1N Rb1 a1R Be6 Na2 Bg4 Nf4 Qc4+ Kc2 Rd1 Rc1 Nb1+ Nc3 Qfb4 Qa5 d8Q Nd7 b8Q Nf6 Qdd4 Rc7 Qdd5 Ba6 Bg2 Qa2 B2f3 Qa5 Qdg8 Qd5 Rhg1 Rh5 Be1 Re5 Bf2 h1N+ Kh4 Qd6 Rd5 h2 Rb5 Qd5 Qb7 Re1 Nd4+ Kc1 Bd1 e2 Qbb3 e3 Rc5 Rf1 Q7b4 e1N Rb5 e2 Ra5 Qb5 Qgd5 Qc5 Qg2 Qd5 Rc5 Ng3 Ra5 Nf5+ Kg5 Ned3 Nc2 Na2 Bb6 Nc3 Nd4 Rf3 Rc5 Nf2 Rb5 Rd3 Ra5 Rd2 Rc5 Rc2 Rb5 Ne6+ Kg6 Nd7 Kf7 Nh4 Ke8 Nf4+ Kd8 Nf6+ Qd6 Rb7 Kc8 Rd7+ Kb8 Rc7 Qdb4 Qc5 Nd2 Qd5 Nf1 Kb1 Nd2+ Ka1 Nb1 Qd6 Rd5 Qc5 Rd8 Qa5 Rh8 Qd5 Rh5 Rc8+
rr1rQ2r/R6B/1RpN4/n1PQ1qk1/1r1K1Npb/3B1B2/4pNN1/b1n2b2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f6 e5 Kf7 d6 Ke6 Bd2 Kd5 Bf4+ Kc5 dxe7 Kb6 e6 Kc6 Be5 fxe5 Ke2 g5 Kd3 Kd6 e8N+ Ke7 c4 d5 f4 b5 a4 b3 h4 b2 c5 d4 h5 b4 h6 b3 h7 g3 f5 e4+ Kc4 e3 a5 g4 a6 d3 a7 d2 Qe2 d1R Qc2 g2 Qe4 Na6 Qd5 Bg7 Nf3 g1B Nd6 Kf6 e7 Qf8 e8B Bf2 Nh4 Nb4 Bg6 Na2 Nc3 b1R Ng2 b2 Rh6 Ne7 Bd3 Nc1 Kd4 Kg5+ f6+ Bf5 Ra6 Bh4 Rb6 Rd2 Nd1 e2 Nf2 Nc6+ Kc3 Na5 Kd4 Rd8 a8B Ra1 Ra6 b1R Ra7 Rbb8 Bb7 Rb2 Ba8 Rg8 h8Q Raa2 Bh7 Ra3 Ke5 Be4 Bc6 Qf7 Ba8 Qe6+ Kd4+ Qf5 Bb7 Rge8 Qhg8 Bf3 Qge6 Rh8 Qe8 Bf8 f7 Bg7+ Rf6 Ra1 f8N Be4 Ne3 Bg2 Ng6 Bf1 Nf4 Ra3 Neg2 Ra4+ Qc4 Ra3 Bf3 c6 Qd5 Nc4 Rb7 Raa8 Rb4 Na5 Rb6 Bh6 Rf7 Bg7+ Ke3 Rb3 Rfb7 Ba1 Ra7 Rb2 Kd4 Rb4+
bb2NKNr/4R3/1p1pRBb1/4b1B1/B3R3/1P1p2r1/QBk5/Qn1qb1nr w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qxa5+ Ke2 Qa6+ Ke1 Qa2 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 g4 e5 f4 a5 c4 h5 Kg6 h3 Kf7 d6 g5 b6 f6 a4 g6 a3 f5 h4 g7 h2 Nd2+ Ke3 Ngf3 h3 Nh4 e4 Ng6 Rh6 Ne7 Qb1 c5 a2 c6 Rh8 c7 Nc6 Bb5 d3 Ba4 Nd4 Re1+ Ne2 b3 Bb7 c8Q h1B Qcc2 h2 Ba3 Kd4 Qdc1 e3 Ne4 Ra5 Ke8 Ng1 f7 e2 f6 Rg5 Q1d1 Nh6 g8R Rg3 Rg6 Ba8 Ng8 Be7 f8B Ng4 f7 Ne3 Nef6 Nc4 Bh6 Nd2 f8B Bhe4 Bg5 h1R Bg7 Bd8 Kf8 Bc7 Qdc1 Bb8 Ne8+ Kd5 Rf6 Kd4 Rf4+ Ke3 B7f6 Bg6 Q1d1 Qc1 Rb1 a1B Qa2 Bd4 Bb2 Qc2 Rc1 Qb1 Rc7 Qc2 Qc1 Qd1 Qca1 Nb1 Re7+ Kd2 Rf5+ Kc2 Rfe5 Bc3 R5e6 Bd4 Rf1 e1B Rf4 Bdc3 Rfe4 Be5
B2k1NQN/7p/1pb1B2K/3r1r1Q/b1q1Rr2/B1pP2rn/Bn2R3/r1b4N w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 c5 Kf3 f5 a4 c4 g4 c3 e4 b6 d6 h3 d3 b3 d7+ Ke7 e5 h2 e6 b2 a5 Nh6 g5 Ba6 g6 Nf7 g7 Nc6 g8B Qc8 d8N Ke8 e7 Bh6 Na3 b1R Nc4 Rb5 Ra2 Rd5 Ba3 Bb5 a6 Ba4 a7 Na5 Ne5 Nc4 Ne6 Nb2 Bh3 Qc4 Ng6 Kd7 Ne2 Ng5+ Kg2 f3+ Kg3 f2 Re1 f1R Nef8+ Kc7 e8Q f4+ Kh4 h1B Kh5 f3 Bhe6 f2 Ng3 Nh3+ Re5 Bg2 Nh1 Bc1 Bgf7 Rg8 Nh8 Rg5+ Kh6 Rg3+ Re3 Be4 Qh5 Bg2 Bg8 Be4 Qeg6 Kd8 Qf7 Rc5 Qg7 Bec6 Bgf7 Rf5 Qg8 Rc8 a8B Re1 Ra1 f1R Ra2 R1f4 Re4 Rc7 Be8 Rd7 B8f7 Nd1 Rae2 Rdd5 Bc8 Nb2 Bfe6 Reg1 Ba6 Qb3 Bc4 Qb5 Ba2 Qc4 Qhf7 Bd2 Qfg6 Ra1 Qh5 Bc1
4bB1b/3nbNpk/4R3/KNQBP3/bR1p3b/2rp1Q1B/1r3Q1B/4q1rn w - - 0 1 illegal: Other
Nb2RQrK/1N1r1p2/r1r2b1N/6r1/QP1RN2q/2Bbp3/p1Rn4/3n2kB w - - 0 1 illegal: No proof kernel
qn3n2/2rbbpRQ/1b1pN1NR/6Qp/1NB5/3K3P/1Q1Bn1b1/2rbNk2 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 g5 a4 gxf4 d5 cxb4 axb5 e6 Qd4 exd5 Qd1 d4 Kd2 Ke7 g4 Ke6 c4 Ke5 e4 a5 b6 d3 b7 Kd4 c5 a4 g5 h6 g6 d6 e5 f3 c6 a3 e6 a2 e7 b3 e8N b2 c7 f2 g7 Nf6 g8Q Nh7 Qh5 Ra7 Na3 Bd7 c8N Be7 Nc7 Nf8 Qgg5 Qe8 Be2 f1B Ne6+ Ke4 Nc2 Bg2 Rb1 a1B Nb4 Rg8 Kc3 d2 Bc4 d1B Nf3 Rg6 Rg1 Rf6 Ne1 Rf1 Bd2 Qd8 Bb3 Qa5 Rc1 b1N+ Kc4 Bd4 h3 Na6 b8Q Bb6 Rc3 Qa4 Rf3 Nc3 Rf6 Ne2 Rg6 Bbd8 Qb6 Nb8 Qf2 Bb6 Ba2 Bed8 Ne7 Rb7 Rg7 Qa8 Ng6 Be7 Qff6 Ra7 Qb2 Rc7+ Qc5 Rf4 Rf1 Rh4 Rf6 Rf4 Qg5 h5 Qh6 Rf1 Qh7 Nf4 Kc3 Rg1 Bc4 Rh1 Ned3 Kf3 Qg5 Ke2 Ne1+ Kf2 Na2 Kg1 Nb4 Ne2+ Kd3 Qa5 Nh8 Qa8 Rh6 Kf1 Ng6 B1a4 Nd5 Kf2 Nc2 Rc1 Ne1 Bd1 Nb4 Kf1
1Br1b3/2npB3/1bn2N2/1QpPRNR1/qb1b1NrR/2R2p1K/k7/1b1nQ3 w - - 0 1 legal: proof: f4 b5 g4 e5 c4 exf4 b4 h5 gxh5 a6 Bg2 Qe7 Bc6 bxc4 b5 Qg5 b6 Qd8 Bb5 axb5 Kf1 Ke7 Kg2 Ke6 e4 g5 a4 f5 h4 g4 d4 g3 b7 b4 e5 Kd5 h6 c3 e6 Kc4 e7 c2 e8N Kb3 d5 f3+ Kh3 f2 h7 f1N a5 f4 a6 g2 h5 f3 a7 Ne3 h6 Nf6 Nd6 Rg8 h8Q Ne8 h7 Nc6 b8B Ba6 Ba3 Bd3 Ne2 g1B Nf4 Bg6 Qe1 c1B Nc3 Bb2 Nf5 Nd1 Rc1 Bb6 Ne4 Ka2 Rg1 b3 Rc3 Bb4 Rg5 Ba1 Qg7 b2 h8R b1B Rh4 Qf6 Qh6 Qd4 Nf6 Qc4 Qg7 Qb5 Qge7 Qa4 Qc5 Bh5 Qb5 Bf7 Rgh5 Rg4 Rg5 Bg6 Rd3 Bad4 Rc3 B4a5 Be7 Bb4 Ne4 Nd8 Nf6 c5 Bbd6 Rc8 a8R Nc6 Bb8 Nc7 Ra6 B6a5 Rb6 Be8 Ra6 Ne5 Re6 Nc6 Re5 Bb6
3BQ3/1kpB3n/1N1n1prr/1n4qp/1BN3P1/3Kn3/RbQ4B/1b1nR1Qb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 a5 Ke2 h5 d4 f3+ Kd2 h3 g4 h2 e5 f2 d5 c3+ Kd3 c2 d6 a4 b6 Kc6 b7 a3 e6 a2 d7 Nf6 e7 Ne4 e8Q Bg7 Ne2 Ra6 Na3 Bb2 Bd2 Rh6 Nc4 Nd6 Nc3 Qg5 d8B+ Nd7 b8B Kb7 b5 Nf8 b6 Nh7 Nd5 Bf5+ Qe4 Bg6 Ba7 Bf5 Be2 f1N Bb4 Ne3 Re1 h1B Qc1 Nd1 Qe3 Kc6 b7 Rb6 b8Q c1N+ Kd2 Nb3+ Kd3 Bg6 Qg1 Nd4 Qf5 Ra6 Ndb6 N4b5 Qc8 f6 Qe6 Ra5 Qf7 Kb7 Qe8 Na3 Bf1 Re5 Be2 Nab5 Bf1 Re7 Be2 Rg7 Bf3+ Ka6 Bc6 Rg8 Bd7 Kb7 Rc1 a1N Rc2 Rg7 Rh2 Nc2 Rf2 Bc1 Rfe2 Nce3 Ra2 Bf7 Qff2 Bb2 Qc2 Be6 Nc8 Bed5 Bd4 Rgg6 Be5 Bf7 Bh2 Bg8 Na3 Bb3 Nb6 Ba4 Nac4 Bb3 Ra5 Ba2 Ra8 Bb1 Ra3 Nd4 Ra2 N4b5
1r1k1bN1/Bp1p1B2/1p2r1r1/n1N2Rqb/3K4/n3R3/QNQP3Q/2rQbr2 w - - 0 1 illegal: No proof kernel forced: wxLB
2n2B2/kp1pP2B/1rb1n2q/3r1N1r/1N1p4/1R1Q1brr/K3QbN1/3NBR2 w - - 0 1 illegal: No proof kernel forced: wxLB
1n5b/P2Nb1BK/2R1bn1R/6r1/3Q2rp/p1p1q3/Nb1rbkB1/1BB1R2Q w - - 0 1 illegal: No proof kernel
4bQ2/P5pR/5nQb/4nB2/1qN1Nnr1/1Nb1nK2/n1k1BBpp/1Rr3N1 w - - 0 1 illegal: No proof kernel
1r2n3/pn5n/R7/rbN1k3/rBK2R1B/b1NQP2N/NQ1pp3/q1r2r1B w - - 0 1 illegal: No proof kernel
r1N1Rb1q/p1b2b2/b1QB4/N3nr1b/1p2nQB1/k2KN3/p2R1P1R/4R1r1 w - - 0 1 illegal: No proof kernel
1r1NQ1Bk/p1bb1R2/N1p2r2/nn2rq2/4rb1K/Q4PpQ/6R1/BQ3r1N w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 d4 Kf7 h4 g5 b4 Kg7 d5 e5 b6 e3 d6 g3 d7 e4 b5 c6 f3 g4 h5 e2 h6+ Kh7 b7 c3 b6 c2 Nc3 g2 Kf2 e1R Kg3 e3 Nge2 Ne7 Nd5 g1R+ Kh4 Na6 b8Q Nc5 b7 Nb3 Qd6 Na5 Nb4 Rb8 Bb2 c1B Ng3 e2 Na6 Bf4 Ra2 Nd5+ Bf6 Qc7 d8N Qf7 Qa3 B8d6 Ba1 Bd7 Qb1+ Qf5 Rb2 Kg8 h7+ Kg7 Rh3 Nc3 Nh1 g3 Ra2 Rf8 h8Q+ Kg6 Rb2 Nb5 Rh2 Bde5 Rg2 Rf6 Qe8+ Kg7 Qe6 Ra8 b8Q Bc7 Qe8 Kh7 Qc8 Rb8 Rb4 Nc3 Rb7 Nb5 Rf2 Kg7 Bh3 Ref1 Rg2 e1R Bg4 Re3 Bh5 Rfe1 Bf7 Rgf1 Be6 Re5 Bg8 Bd6 Rc7 R1e4 Rb7 Kh8 Rc7 Be6 Rf7 Bd7 Qc7 Bc8 Qcd7 Bc7 Qde6 Qg6 Qg4 Qf5 Qh3 Bd7
N6n/pPn1RR1B/r1rQ3p/Bq2RQ2/r1b1n2r/1p1r1B2/3B1N2/bk4K1 w - - 0 1 illegal: No proof kernel
K4n2/3nb2k/1bn5/1bQ3pp/1bqBrQN1/R4P1R/B1pB4/1rrN1NB1 w - - 0 1 illegal: No proof kernel
r1N1n1Q1/1R1Q2QR/b5n1/1p2nq2/K1BB1PbN/ppr1Q1b1/B7/k3b2r w - - 0 1 illegal: No possible last move, all moves rejected
Q1bkN1B1/4r3/2n4b/p2n4/1QR2BQ1/RbPp3q/3QrpK1/b1nN1B1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 e4 d5 b4 f5 h4 g5 h5 d3 h6 d2 h7 f3 e5 f4 b6 d4 b5 d3 e6 Ne7 b7 Bh6 b6 Nd5 e7 Nc6 b8Q Ra7 b7 Qd7 Nh3 g3+ Kg1 g2 Ra3 g4 Nc3 Qe6 Qa8 f2+ Kh2 g1N b8Q g3+ Kg2 Qf5 Ne4 Ne2 Qb4 Qh5 Qe1 d1B Qed2 Kd7 e8B+ Kd8 Rh2 Re7 Bf7 Rhe8 h8Q Qf5 Nd6 f3+ Kh1 Qg4 Qg8 Qh4 Rg2 Qh5 Rg1 g2+ Kh2 Qf5 Qgg4 Qd7 Bg8 Qe6 Bb2 Nc1 Be5 Qd7 Rh1 g1B+ Kg3 Qf5 Bf4 Re2 Rh2 R8e7 Ne8 Qe6 Ng5 Qd7 Ne4 Qf5 Nc3 Qh5 Bg2 f1R Rh4 Bd4 Kh3 Rfe1 Bf1 f2 Kg2 Be5 Na4 Bb2 c3 Ba1 Nb2 Bb3 Nd1 R2e5 Be2 Rh1 Bf1 Re2 Rh3 Bc2 Re3 Qf5 Re4 Bb3 Rd4 Qh5 Rc4 Qh3+
1N3nR1/NN2nBb1/3Ppr1r/4K3/NQ1rb1QR/3kBpb1/q4rp1/2B1n3 w - - 0 1 illegal: No possible last move, all moves rejected
1rQNRQ1n/3Q1nb1/1R1p2pp/RPqbb3/1rR5/n1NkB3/1b1r2B1/1K6 w - - 0 1 illegal: No proof kernel
3K1qn1/bbr2BN1/P1knRBrQ/R5n1/2np4/4Q1p1/2NNp2N/b1B4r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 d5 Kd3 Kd7 h4 g5 f4 e5 a4 b5 c4 g3 f6 b3 h5 g4 h6 b4 f7 g2 f5 g3 a5 b2 h7 b3 c5 Qh4 a6 Qe7 f6 Bg7 f8Q Ra7 f7 Bb7 Qe2 Kc6 Ra5 Nd7 Nf3 g1B Na3 b1N Qe3 b2 Rh6+ Ndf6 Nh2 Nc3 Nc2 b1R Be2 Qd6 Bh5 Ne8 Re6 Rb6 Bg6 Bf6 Qfh6 Ne4 f8N Ng5 Bf7 Bg7 Re7 Bf6 Ne6 Qd8 Ng7 e4+ Ke2 Qd6 Re6 d3+ Kd2 Bd8 Kc3 d2 Kd4 d1N Qh3 Nb2 Qh6 Kc7 c6 Qf8 Ke5 Bf6+ Kf5 Nc4 Kg6 Ba1 Kf5 Kd8 c7+ Kd7 c8N Bf2 Nd6 Kc6 Qd2 e3 Ne4+ Qd6 Qd3 e2 Nd2 Bc5 Qe3 d4 Nhf1 Bc8 Nh2 Rc7 Qd3 Bb7 Qc3 Rb2 Qe3 Ba7 Kg6 Ngf6 Kf5 Rg8 h8B Rb1 Nh5 Rg6 Bg7 Ng8 Bf6 Kd7 Ng7 Qf8 Bb2 Rh1 Bc1 Nh7 Re4 Kc6 Ke6 Rc8 Ree5 Kb6 Kd7 Rc7+ Kd8 Kc6 Re7 Ng5 Re6+ Ned6+
2qn1K1b/1R1Q3P/1r1Rr2b/RbN2Q2/3NBQ1p/4rpn1/3Rpnk1/B1r5 w - - 0 1 illegal: No proof kernel
1K1rk2n/N3Nr1p/6Rr/3pQ3/1Rp2Bb1/5bbq/1nP4Q/n1NnR1NB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 e5 h4 exd4 Qd3 g5 Qd1 gxh4 Kd2 c5 b4 d5 g4 a5 f4 a4 g5 e3+ Kd3 e2 g6 e1R b6 a3 b5 h3 g7 h2 b7 a2 b6 Be7 f5 Kf7 f6 Ra6 Bg2 Re5 Qh5+ Ke6 f7 Kd7 f8R Nc6 b8Q Bd6 b7 Nge7 g8N Rg5 Nd2 Ng6 Nb3 Rf5 Rb1 a1N Rf6 Ke8 Bf4 Qd7 Nc1 Na5 Ne7 Nc4 Rb4 Rg8 Re6 Rf7 Qe5 Nh8 Rg6 Qh3+ Bf3 Rc6 Qc7 Ra6 b8N Bg4 Nbc6 Rgf8 Na7 Nb2+ Kd2 d3 Kc3 c4 Kd4 d2 Qb8+ Kd7 Bg2 Bc7 Kc5 d1N Be4 Raf6 Kb5 Bd6 Ka6 Rd8 Kb7 Ke8 Bf3 Bc5 Bg2 Bf2 Be4 Bg3 Qbc7 Rdd6 Kb8 Rfe6 Nf3 Rd7 Re1 h1B Ng1 Bhf3 Qcd6 Be2 Bh1 Bef3 Qc5 Ra6 Qf2 Rad6 Qh2 Re6 Rg5 Rh6 Rg6 Rd8+
7r/2bn1Bp1/1Q6/1bn1r1k1/QB2pp2/NPK1QR2/1N4b1/RrQr1Nnq w - - 0 1 illegal: No proof kernel
b2N2rr/1n1R2p1/Rb4Bb/QQn2nkp/3Kb1pN/1Q6/Q1P1r3/B2Rq3 w - - 0 1 illegal: No proof kernel
5KN1/3QR1pB/qpP2N2/6B1/1Q6/n1Nbrnbp/1Rrn1R2/k2r1Nnb w - - 0 1 illegal: No proof kernel
1nrKQbBk/b2N1p1p/1B6/2bnp3/1b1N4/5P2/3nB1BQ/rQrRR1q1 w - - 0 1 illegal: No proof kernel
2K2NQr/4Pq2/1r1n1bRN/p2n1Q1Q/B1pr2b1/4QnBR/bp1n2k1/1N6 w - - 0 1 illegal: No proof kernel
1R2bk2/Knn1p2R/BQ1QRrRq/1r6/3r1p2/Q1nBN1b1/p4P2/rb2N3 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 dxe4 Ba3 g5 axb5 gxh4 b6 Qd5 b5 Qd8 Bb4 cxb4 Ke2 f5 Ke3 a5 d4 h5 g4 b3 c4 h3 b7 h2 g5 b2 b6 a4 c5 h4 g6 a3 g7 h3 d5 a2 Kd4 e3 d6 e2 c6 e1N Kc5 Nf6 g8B Bh6 c7 Nd5 d7+ Kf8 Bh7 Nc3 Qd6 Ra6 Nf3 Bf4 Na3 b1B Nc2 Bg3 Ne3 f4 Bhd3 Ra4 Ba6 Rh6 Bfd3 Rf6 Rg1 Qe8 d8Q Bd7 c8R h1R Rc6 h2 Q8c7 Qg6 Qc8+ Be8 Qh3 Nc2 Ne1 Nb4 Rg2 Qh6 Rg1 Bh4 Rg6 Nbd5 Qf3 Rd4 Qg3 Nd1 Kb5 Nd7 b8Q Rf1 b7 h1R Qd8 Rh3 b8R Nc5 Qb6 N1c3+ Ka5 Nc7 Qf3 Bc2 Rb1 Bg3 Rb5 N5e4 Rh5 Bb1 Rh4 Nc5 Rh5 Qg7 Rh7 Rh2 Qe5 Qh6 Re6 Rh5 Qed6 Rb4 Qbb7 Ra4+ Kb6 Rd4 Ka7 Re5 Qbb6 Nb7 Qfd5 Rh1 Qda5 Rb5 Qaa3 Bc2 N1g2 Ra1 Ne1 Bb1
BR1n1B2/QBpr1N1N/3nbQ1b/6p1/B5rp/b2k4/K2nq1P1/n2R1Nr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 h5 dxc4 f5 Qd6 Qb3 Qg6 hxg6 e6 Qc2 exf5 Qd1 f4 e4 Ke7 d4 Kd6 Kd2 f5 Kc2 b5 Kb2 h5 a4 h4 a5 f3 a6 b3 a7 f2 g7 f4 e5+ Kd5 e6 Ke4 e7 b4 e8Q+ Ne7 g8B f3 d5 Be6 d6 Rh7 d7 Bh6 d8N Nf5 Qf8 Nd6 Rh3 Rd7 Rg3 Nc6 Nf7 Nd8 Ne2 Rb8 Nd2+ Kd3 a8B c3+ Kb1 b2 Qa4 Rb5 Qe7 Rd5 Ka2 b1R Bb7 c2 Ba3 c1B Ne4 Bb2 Nf6 Rd4+ Bd5 Rc4 Qa7 Rg4 Nh7 Rd1 Qf6 Bc1 Kb1 b3 Ba8 b2 Rh3 Kc4 Ka2 b1N Rh1 Nd2 Rb1 Nb3 Rb2 Na1 Rb8 Bb2 Bc5 Ba3 Ng3+ Rd3 Be2 f1Q Bd1 f2 Ba4 Rd1 Bb7 Qd3 Bb4 Rc1 Rd1 f1N Ba8 Nd2 Nf1 N6e4 Bf8 Nd6 Nh8 Qe2 Bf7 Nc8 Be8 Nd6 Nf7 Re7 Bec6 Rd7 Bcb7 Kd3+ Bd5 Rcc4 Bab7 Rcf4 Ba8 Rf3 Bb7 Rh3 Ba8 Rh1 Bb7 Rg1 Ba8 Nc4 Bdb7 Nd6+
2Bb1B2/1P1RQ3/1p1RpQ1N/qb1n1nnR/5RNr/r1p4r/7N/1n1K1b1k w - - 0 1 illegal: No proof kernel
2K2R1n/qpb1b3/Q2NB3/1p2k1n1/1R2b1Rn/prr5/1BP1QN2/b1B1r1B1 w - - 0 1 illegal: No proof kernel
2BnbQ1n/1p1bpr2/1r1n3K/3p3B/1nk5/B4NQR/1PNbqrQ1/3B1R2 w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qxa5+ Ke2 Qa6+ Ke1 Qa2 Kd2 Kf7 f4 a5 g4 h5 c4 d3 Ke3 a4 g5 h3 c5 a3 c6 h2 c7 d2 f6 Ke6 f7 Kd5 g6 h4 f5 h3 Kf4 Bh6+ Kg4 Ra6 Kh5 Rb6 f8Q Rh7 f6 Nc6 g7 Nd8 f7 Qc4 Nf3 a2 Qb3 d1N Ng1 Ne3 Qb4 Qe2+ Nf3 Nc4 Qe1 Nd6 Be3 Kc4 Bc5 Bd2+ Kg6 Nh6 g8B Rg7+ Kh5 Rg2 Qg7 Rf2 f8Q+ Nhf7 Bh7 Nh8 Qg2 Bh6 Bc2 Bd2 Rg1 h1B Ba3 h2 Bd1 Ba5 Kh6 Bd2+ Qg5 Bg2 Rh1 Bh3 Bg2 Bg4 Bh3 Bh5 Bg4 Be8 Rf1 h1R+ Bh5 Rh3 Rh1 Rh4 Rh3 Rf4 Qh1 Rf7 Qg2 Ba5 Q5g3 Bb4 Nc3 Ba5 Rc1 a1N Nb5+ Nc2 Nbd4 Bc3 Ra1 Nb4 Nc2 Nb5+ Qg6 d5 Rb1 Nd6 Q6g3 Bcd7 c8B Qe4 Be2+ Qd3 Rf1 Be1 Bd1 Qe2 Ng5 Bc3 Nf3 Bd2+
k4Nq1/pr6/1r2nb2/2r2Q1b/R1b1pQ2/1BB1Bbn1/p3N1P1/R1QQK2n w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 b4 e5 c4 h5 f4 d5 c5 Kd7 c6+ Kc7 b5 h3 f6 e4 f7 h4 f5 a3 f6 d3 Qf3 a2 Qe2 d4 Nf3 h2 Bd2 h3 Kf2 Ne7 Na3 Be6 Be3 d2 Qd1 d3 Nb1 Bc4 Ng5 Na6 b6+ Kb8 b7 Nf5 Nh7 Bg7 f8Q Nc5 f7 Bf6 Nc3 Ng3 Ne2 Ne6 Qh6 Rg8 f8B Rg7 Bb4 Qg8 Bc3 Rg5 Rg1 h1R Nf8 h2 Qh7 Rc5 Qf5 Kc7 Rc1 Rb8 Rc2 Kb6 c7 Kc6 c8Q+ Kb6 Qc1 d1B Qd7 d2 Qd3 Kc6 Rb2 Kc7 Rb4 Kc6 Ra4 Kb6 Nf4 Bf3 Ne2 d1B Ke1 Bh5 Nf4 Bdg4 Qdd1 Bf3 Bd3 Kc7 Bc2 Kc6 Rf1 Rg1 Bb3 h1N Kd2 Kc7 Re1 Rf1 Ne2 Rf2 Rg1 Kc6 Ke1 Kb6 Nf4 Rb2 Ne2 Kc6 Bc2 Rb6 Bb3 Rd8 b8Q Rd7 Qbe5 Kb7 Qef4 Ka8 Qa1 Bg5 Qd4 Rdd6 Kd2 Rbc6 Rc1 Bf6 Ke1 Rc8 Qd1 Rb8 Qb2 Rdb6 Ra1 R8b7 Qbb1 Rd5 Qbc1 Rc5
7B/2q3N1/1Q1b1Kbk/Rq2pnR1/2pb1Q2/2Nb1Bp1/n1b1NNP1/2rrQ3 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 b4 axb4 h4 fxe4 h5 Qd6 h6 Qxh6 Na3 Qh4 Nb1 Qh2 Ke2 Kf7 Ke3 Kg6 Kd4 c5+ Ke3 h5 f4 b5 d4 b3 a4 b2 f5+ Kh6 d6 g5 a5 h4 f6 h3 d5 b4 d7 g4 d8Q b3 f7 c4 Kd4+ e3 a6 Qc7 d6 g3 Ke5 h2 a7 Bf5 Qe1 Bg6 Be2 Na6 Nh3 Nb4 Nf2 Na2 Nc3 b1B Bf3 b2 Ne2 Bbc2 Bd2 b1B Bc3 Rc8 a8N e6 Nb6 Ne7 Nd5 Nf5 Rf1 h1Q Kf6 Qh5 d7 Bd6 f8N Ra8 Qb8 Bd3 d8Q Bbc2 Bd4 Ra3 Qb6 Rc3 Qdb8 Rh7 Rh1 Rd7 Rh4 Rd8 Rg4 Rd7 Rg5 Rd8 Nef4 e2 Be5 Ba4 Bd4 Rc1 Nc3 Bac2 Be5 Nb4 Ra5 Na2 Qg1 e1B Nfe2 Bd2 Qe1 Bf4 Qa8 Be3 Qe4 Bd4 Qf4 Bh7 Nd7 Qe8 Nc5 Qb5 Nb7 Ba3 Nd6 Bg6 Ne8 Bd6 Ng7 Ra8 Ra3 Nb4 Ne8 Rd1 Ra2 Ra3 Ra1 Rb3 Ra5 B4c5 Bd4 Rbb1 Be5 Na2 Bd4 Ne7 Be5 Rbc1 Bd4 Bge4 Kf7 Bh7 Be5 Bd4 Bh8 e5 Ng7 Bhg6+ Kf6 Nf5
5nrb/1B2B2r/8/pnb3b1/R1bQ1NR1/2pq1Bp1/BRP3qk/1K3QNb w - - 0 1 legal: proof: d4 b5 a4 bxa4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Qd6 g5 Qa3 g4 Qg3 hxg3 Kd2 Kf7 e4 Ke6 h4 d5 b4 g5 f4 a5 h5 c5 h6 d4 b5 c4 h7 a3 b6 g2 b7 d3 Ra2 g3 Be2 g4 Nc3 Nd7 b8R Bb7 Rh4 Be7 Nd5 Nh6 Bf3 Nf7 Rb2 Bc6 R8b4 a2 Ra4 a1B Kc3 Rg8 h8Q d2 Qg7 Nf8 f5+ Kd7 e6+ Kd6 f6 Ke5 Nf4 d1B Qh8 Nd6 f7+ Rg7 Kd2 Bg5 e7 Be2 e8B Nb5+ Bd7 Bd5 Bc8 Qd6 Bb7 Rb8 Qg8 Rh7 Qg6 Qa3 Qb6 Bf1 Kd1 Qd3+ Bd2 Bc6 Kc1 Be2 Kb1 Rc8 Ngh3 g1B Bb4 g2 Be7 Bc5 Ng1 g3 Rg4 Bf1 Ngh3 g1Q Qa7 Qh1 Ng1 Qg2 Qb6 Kd4 e5 Ke3 e6 Kf2 Qd8 Ng6 Qd6 Rg8 f8Q Be2 Qf5 Nf8 Qd4+ Kf1 Bd8 Be4 e7 Bd5 e8B Be4 Qdd7 Kf2 Bf7 Bc6 Rba2 Bh8 Rb2 c3 Ba2 Bd5 Be7 Bc4 Bfd5 Bf3 Qd6 Qh3 Bdc6 Bh1 Qd4+ Kf1 Nd5+ Kg2 Nf4+ Kh2 Bf3 Qg2 Qf7 Qde2 Qf5 Qd2 Qfd3 Qe3 Qf1 Qd3
N4b2/2Br2p1/qB1RnPbq/2N1Q3/p3p2n/2b1QB2/KbkBrR2/4R2b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 d5 Kb3 e5 h4 a5 c5 d3 b6 a4+ Ka2 d2 b4 g3 b5 d4 b7 g2 c6 e3 b6 Ke4 f5 d3 f6 e2 h5 e1B h6 Qe7 h7 Na6 b8B Nc7 b7 Qf7+ Qb3 d1Q Rh2 d2 Be2 Bf5 Na3 Qd5 Nf3 g1B Nc4 Nh6 Rf2 Bg6 Ba7 Nf5 b8B Qb5 Bb6 Qa6 Nd4 Nh4 Ne6 Ra7 Nc5+ Kd4 Bh5 e4 Bf3 Ne6 c7 Qe2 c8Q d1B+ Bd2 Qe3 Qa3 Qh6 Qe8 Rd7 B8c7 Bh2 Qb8 Be5 Rc1 Be2 Ra1 Bf1 Qb3 Bg2 Qe3+ Kd5 Qe8 Bh1 Rd1 Bb2 Rc1 Bd6 Qe7 Rb8 h8R Rb7 Rd8 Rb8 Bb4 Bec3 Re1 Rc8 Qe8 Bf8 Qe7 Be5 Bd2 Bec3 Nd6 Rb8 Ne8 Kc4 Qd6 Rc8 Qe5 Kb4 Bb8 Rc6 Nc7 Kc4 Na8 Rcd6 Bc1 Rd2 B8c7 Re2 Bd2 Rd4 Rd6 Rd3 Nd7 Rd5 Q3f4 Kd3 Nc5+ Kc2 Qe3 Rd4 Rc6 Rd8 Rd6 Rd7
1n6/QqKBPpb1/N1n3B1/1pr1N1Rn/R1R2Bb1/8/2pqQn2/n1Br2k1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 Kg3 e4 Kf2 g4 c5 a4 h5 g5 b5 d6 c4 g6 b3 d7 f3 a5 c3 a6 h3 g7 b2 a7 h4 d5 c2 d6 h2 Qe2+ Kg3 Ra4 f2 Bh3 f1N Nc3 b1N Nf3 Rh7 Nd5 Nbd2 Nb4 Rh8 Na6 Ne7 g8B Nb3 Bh7 Na1 Bg6 Rh5+ Bhf5 Qa5 d8R h3 d7 Bg7+ Kd6 Qd2+ Kc7 Nec6 Rg8 Rg5 Be6 Rc5 d8B Bd7 e5 Bc8 Qd3 Kf2 Bd7 Ng3 e6 Nh5 e7 Kg2 Rf1 h1Q Ne5 h2 Rff4 Kg1 Qe2 Qf3 Rfc4 h1N Kb6 Qe4 Bc7 Nf2 Bd6 Qed5 Kc7 Qe4 Ng4 Qf3 Bf4 Qh1 Ne5 Qe4 Be8 Bg4 Bd7 Qc3 Qd2 Bf6 Bh7 Na5+ Bc6 Nd7 Bg5 Rd8 a8Q Nb8 Qe2 Rd1 Qa7 Qd2 Bf4 Qf3 Rg5 Bg7 Bg6 Qh1 Kb6 Qe4 Be8 Qa8 Bd7 Nac6 Kc7 Qb7+
1QBk4/bR1np1n1/3Q1nQ1/3Ppb2/Q1nN4/2KNB1Rn/1rNp4/1qr1q3 w - - 0 1 illegal: No proof kernel
rQK1B1B1/q2p3b/1B2q1n1/1QBR2r1/3bRb2/N1nbpPR1/1N3p2/5b1k w - - 0 1 illegal: No proof kernel
3B2K1/3pqp1N/1QQ1q1bn/PQbRnr2/b1p2R1b/1Br5/4Q1N1/k3b2N w - - 0 1 illegal: No proof kernel
bkB1NK1R/1p6/RBBpN1n1/1B1b2Qb/1q1q4/Q1np2rP/2Qr1b2/1b6 w - - 0 1 illegal: Other
1r1qRn2/p2NKp2/3RNQ2/q1NP4/nq1b2rN/2Bp2B1/b1k5/qq4QB w - - 0 1 illegal: No proof kernel
BR2q2B/5q2/2RbnrN1/kq2QR2/2r1Pprr/p1pK2Q1/N1R1n1b1/2N5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 Ke2 Kc7 g4 Kb6 d4 f5 d5 h5 g5 a5 d6 f3+ Ke3 c3 g6 f4+ Kd3 a4 g7 a3 d7 h3 Be3 f2 Be2 f1Q Kc2 h4 Kd3 h2 Bd4 h3 Qe1 c2 Nc3 c1R Ra2 Rh6 Rc2 Qe8 d8R Rf6 Rd6+ Nc6 Qg3 Nh6 g8N Nf5 Ne7 Ng7 Ng6 Ne6 Na2 Ra4 Rd5 Bd6 Rf5 Ra1 Bc3 Ncd4 Bb2 Qb1 Bf1 Bd7 Ne2 Qf7 Rg1 h1R Nec1 h2 Bh3 Ne2 Be5 Ka7 b6+ Ka6 b5+ Ka5 b7 Rc4 b6 Qb5 b8R Qe8 Rg2 Rg1 b7 h1Q Bg4 Qh7 Rh2 Rh1 Rh6 Rh4 Bh5 Rf7 Bh8 Rf6 Rd8 Qhf7 b8Q Be7 Qe5 Bd6 Rb8 Rb1 Kd2 Rb3 Bg4 Rf3 Bh5 Rf1 Kd3 Rg1 Qh3 Rgg4 Qg3 Qg7 Nf8 Qge7 Bf7 Bc8 Bg8 Q7f7 Ng6 Nc7 Rhh5 Qg7 Qe6 Rg5 Re5 Rc3+ Kd2 c4 Rc5 Qge7 Qd5 Bh3 Qe5 Bg2 Bd5 Q7f7 Ba8 Ne6 Rc6 Rgg4 Rg5 Rb3 Rf5 Rb4 Rb2 c3+ Kc2 Qc5 Kd3 Rc4 Rc2 Qb5
2n2nn1/2K2R1b/1R2R2q/Br2b1q1/1P4Nk/1b2QR2/1pr1QNpp/1Nn2B2 w - - 0 1 illegal: No proof kernel
nN3br1/3n1b2/1BqQ4/3r1rpB/R2R1Pp1/1p1n1Nkq/n2N1R1R/1KQ5 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 h4 Kd7 f4 b5 a4 c5 d4 c4 Kd2 e3+ Kc2 c3 h5 e2 d6 Ke6 d5+ Kf5 d7 e1R a5 b3+ Kd3 b4 h6 c2 a6 b2 a7 b3 h7 Qc7 d8N Be6 d6 Re5 d7 Bf7 Be2 Nf6 Ne6 Nd5 d8Q Nd7 Nf3 N5b6 Be3 c1N+ Kd2 Rg8 h8R Na2 Nc5 Qc6 R1h2 Rd5+ Bd4 Rb8 Rf2 Na8 Qc1 Rb5 Rhh2 e6 Na6 g5 Nb8 e5 Bd3+ e4 Bb6 Ra5 Kd1 Rab5 Nbd2 b1Q Bc4 e3 Qc7 Qb2 Qd6 Qh8 Rb1 Qh3 Ra1 Nc7 a8R Rbc5 Ra4 Na8 Qc7 Kg6 Qd6+ Kh5 Bd3 Rf5 Rd4 Rcd5 Bb1 Nb4 Ra4 Na2 Ng1 Kh4 Ngf3+ Kg3 Bc2 Rfe5 Bg6 Rf5 Bh5 Nb4 Qc3 e2+ Kc1 e1N Kb1 Na2 Qc1 Nd3
1QQ1qk1K/2qR4/2R1qB2/Q2N1P1p/3b1r1p/2rnN1Np/BbN2q2/3b3n w - - 0 1 illegal: No proof kernel
2nqnq1B/B1r5/2b1KbBr/k3pN2/2Pp2RR/q7/r3N1pQ/2B2QRr w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 d5 c4 Kd7 f4 Kc7 b4 Kb6 h5 e5 f5 g5 f6 g3 h6 e3 Kd3 a4 h7 e2 f7 e1R Qc2 g2 Bf4 a3 Be3 a2 Nd2 g4 Rh4 g3 Ne4 Ne7 Nd6 Bd7 Nf5 Na6 Bc1 Nc8 Ne2 Be7 f8Q g1R Bg2 Bf6 Be4 Rh1 Qd2 Rg8 h8B Nc7 Qf4 g2 Qh2 Bc6 Rg4 Ka7 b6+ Ka6 b5+ Ka5 b7 Ne8 b8B Rg7 b6 Rc7 b7 Ra7 Rb1 a1Q Rh4 Ra8 Ba7 Qa2 b8R Qa3+ Kd2 d3 Ke3 d4+ Kf3 d2+ Kg4 d1Q R8b3 Qc2 Rg3 Bg7 Qf6 Qcb3 Kg5 Reg1 Rgg4 Qb8 Kg6 Rf1 Qf7 Bf6 Qf8 Be7 Kf7 Bf6+ Ke6 Rf3 Bc2 Rh3 Qh6 Qa4 Ne7 Ncd6 Rh5 Qbb4 Qf8 Rb8 Bf4 Bg5 Rh7 Nc8 Rg1 Qaa3 Bc1 Qc5 Qf6 Rb2 Bg6 Ra2 Qf1 Bf6 Nf5 Qf8 Rh6 Rh5 Rh7 Rg5 Rh3 Rh5 Rhh4 Rh6
2k5/B7/3b1qb1/1Np2PQR/n1b2R1N/n3K1qb/1pR1Rr1p/nB2QrN1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 g4 h5 a4 c5 d4 b5 f4 e5 d6 b3 g5 b2 a5 h3 g6 h2 a6 h4 d5 e3 a7 e4 g7 b4 Qd3 h3 Ra6 b3 Ra1 Na6 Qd2 Ne7 g8Q Nb4 Qg6 Nc2 Qg5 Na3 Qe1 Rh5 Nd2 b1B Ndf3 b2 Nh4 Bd3+ Kd1 e2+ Kd2 Bc4 Ke3 Rh7 Bd2 Rf7 Ba5 Rb8 a8N Rb7 Qb4 e1N Bb6 Rc7 Ba7 Nec2+ Kf2 Rf5 Rc1 Na1 Rc2 e3+ Kf3 e2 Ke3 Rc6 Nc7 e1Q+ Re2 Ra6 Nb5 Qb6 Bg2 Qg3+ Bf3 Kd8 d7 Qf6 Qe1 Ra4 Nd6 Kc7 d8R Be6 Rb8 Nc8 Rb4 Nb6 Nb5+ Kc8 d6 Ra6 Rc2 Na4 Re2 Bf7 Rc2 Bg6 d7+ Kd8 Re2 Rd6 Rc2 Rd1 Re2 Bd6 Rc2 Ke7 d8R Rd2 Ra8 Kd7 Re8 Rf2 Re6 Kc8 Re4 Rd5 f5 Rdd2 Rf4 Rf1 Rb3 Rg2 Rbc3 Rgf2 Re2 Qg4 Be4 Qg3+ Ngf3 Qf8 Bb1 Qf6 Rg1 h1B Rcc2 h2 Rg2 Qg4 Ng1 Qh3+ Rg3 Bg2 Rgf3 Qg4 Rh3 Qg3+ Nhf3 Qg4 Rh5 Bh3 Nh4 Qg3+
1RK5/Br2N2b/1QN1r2n/1qpp1R1r/3qnQ2/Pk1BR3/2p1N1r1/2bNq3 w - - 0 1 illegal: No proof kernel
3QqRn1/1N6/Q2B3k/bpp1qBpr/K1RRN2q/b1bB2n1/5RPb/6r1 w - - 0 1 illegal: No possible last move, all moves rejected
2RK2RN/1n3Q2/1N5b/P1B1b1N1/2pn1p2/1k2qpQr/R1N1B2q/3rnbb1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 d4+ Kc4 h5 c5 h6 g5 d6 f5 a5 b5 d7 f3 Kg3 f4+ Kh2 g3+ Kh3 b3 Kg4 b4 Kf5 g2 Ke6 g4 d5 g3 d6 b2 h7 b3 Ra2 Ne7 Nc3 b1Q e4+ Qd3 e5 b2 Nge2 b1N Be3 g1B Nd5 g2 Qe1 Na3 Nd4 Bh6 Be2 Ba6 Qg3 Nbc6 Nc2 Nf5 Nb6+ Kb3 Rh5 Bb5 Rg5 Ncd4+ Kf7 Rb8 Rg8 Qh4 d8R Qh2 d7 Nd6+ Ke7 Bf2 e6 g1B Rde8 Rd8 Ref8 Be1 Re8 Bc3 Bf2 Rc8 d8N Qe3 Nf7 Rd8 Ng5 Bd3 Ref8 c4 Re8 Ra8 Kd7 Rd8+ Kc7 Ba1 e7 Bc3 Ref8 Bb2 e8Q Ba1 Bd1 Bf1 Qf7 Bc3 Be2 Bb2 Nb4 Nac2 Re8 Ne1 Nc2 Nc6 Ref8 Be5 Re8 Nd4 Ref8 Rc8+ Kd7 Rc5 Rc8 Rd5 Ke7 N4f5+ Kd7 Rd1 Kd8 Nd4 Re8 Rg8 h8N Rg7 Rg8 Rh7 Ng6 Bhg7 Nh8 Rh3 Qf5 Bf8 Qf7 Bh6 Qd5 N4b5 Nd7 Qd3 Bc5 Qe3 Qf7 Nd4 Nb6 Nb7+
k5n1/5r2/q1b2Q1K/pQ1BnQRN/3rb2R/1N4p1/PrBp2q1/1QrRb3 w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 Bd2 h6 Ba5 hxg5 Bc7 g4 Be5 Kf7 Bf6 Ke8 Bh4 Qe7 Bg3 fxg3 Qc1 Qh4 Qd1 Qd8 Kd2 a5 h4 b5 c4 d5 f4 Kd7 e4 Kc7 c6 g5 f5 d3 Ke3 b4 h5 b3 e5 b2 h6 d2 f6 g2 h7 g3 c5 g4 Kf4 d4 Kg5 d3 e6 Qd7 e7 Qe8 f7 Bd7 Rh5 Qc8 e8Q Qa6 Ne2 g1R Bg2 Ra7 Bd5 g2 Nf4 g3 Qc1 d1R Nd2 b1B Nb3 Bg7 f8Q Bc3 Qf6 Ne7 Kh6 Be1 Rg5 d2 Qc2 Rc1 Nh5 Rh1 Qcb2 Be4 Qb1 Rf8 h8R g1Q Rh7 Qg2 Rh8 Rh4 Rh7 Ng6 Qee5+ Kc8 c7 Nc6 Qe8+ Kb7 c8B+ Ka8 Qee5 Bh3 Bf5 Rb7 Qeb2 Nce7 c6 Bg4 c7 Rf7 Qbe5 Bgf3 c8Q+ Ka7 Qcc6 Ka8 Qb5 Rg4 Qee6 Ne5 Bg6 Bc2 Bd3 Rd4 Qh3 Be4 Qf5 Bd1 Bc2 Bdf3 Bc4 Bc6 Bd5 Be4 Rg4 Rd1 Rh4 Rc1 Rg7 Rb4 Rg5 Rd7 Nc5 Rb2 Nb3 Rd8 Bc4 Rd3 Bd5 Rd4 Bc4 Bf2 Bd5 Rg1 Q1f1 Rh1 Re1 Rg1 Re2 Rh1 Qb1 Rd1 Re1 Rc1 Rd1 Be1 Be6 Qb6 Bc4 Qa6 Bd5 Ng8+
Q1Q1b3/1Qqr1BR1/6NB/pb2Rp2/2nq4/2pbNP2/1B2K1bn/rB1n2k1 w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 b5 Bb4+ c3 b6 a5 bxa5 cxb4 a4 e4 Ke7 g4 Kf6 g5+ Ke5 b6 d5 b7 c5 g6 f5 g7 h5 b5 c4 b6 d3 Qg4 Kd4 Nc3 h3 Qg2 h4 e5 h2 e6 d2+ Ke2 d1B+ Ke1 a3 e7 a2 e8B h3 Na4 Nh6 g8Q Ng4 Nb2 Bd7 Bf7 Be2 Qg6 Rh7 Bd2 Nc6 b8Q Na5 b7 Bd3 Qg8 Bb5 Rc1 a1Q Bh6 Qc7 Qgc8 c3 Be2 Qa4 Nd1 Nc4 Nf3+ Ke4 Ne3 d4 Rf1 h1B Rg1 h2 Bd1 a6 Bc2 Ra7 Qa8 a5 Qh3 Bg2 Bb1 h1B Ne5 Nh2 Ng6 Rg7 Qh4+ Kf3 Qe7 Be8 Rd1 Bgf1 Rg4 Bhg2 b8B+ Rb7 Re4 Rb2 Qb4 Ra2 Qbb7 Ra1 Ba7 Qad7 Bc5 Qdd8 Ba3 Qd5 Be6 Rd7 Bb2 Bc2 Nh8 Ba4 Bg8 d3 Ba2 Bh3 Bb1 Qd4 Bf7 Bc6 Re5 Be2 Nc2 Kg2 f3 Bb5 Ne3+ Kh1 Rd2 Bef1 Rg2 Be2 Rg6 Bg2 Rg8 Kg1 Ng6 Bef1 Nc2 d2+ Kd1 Bd3 Rg7 Be4 Ke2 d1N Ne3 Bd3+
N2Bn2B/n1r1Bn1B/8/pqN1pb1k/1Q2K3/qrPpb3/q2RN1Q1/2R3q1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 b4 d5 f4 e5 g5 h5 b6 a5 b7 h3 c3 d3 Ke3 d2 b5 h2 b6 h4 Na3 h3 Qa4 d1Q f5+ Kh5 f6 Qd6 f7 Nf6 g6 Nc6 b8N Qc2 b7 Ne8 g7 Rh7 g8Q Bf5 Nd7 Rb8 Ra2 Na7 Nc4 Qa3 Ncb6 Bc5+ Qd4 Qb1 f8B Qb5 Ne2 Re7 Rg1 h1Q Rd2 h2 Bg7 Qg2 Na8 h1Q Bh8 Bb6 Nc5 Rc7 Qc4 Qgh2 Qg2 d4+ Kf2 e3+ Kf3 d3 Qb4 Rbc8 b8B Rb7 Bd6 Rcc7 Be7 Rb8 Nd4 e2 Ke3 e1N Ne2 Nf3 Bd8 Qaa4 Bb2 Ng5 Ba3 Nf7 Kf3 Bh3 Ke4 Qb3 Qf3+ Bg4 Bh3 Qf2 Rc1 Qhg1 Qg2 Bd7 Ne6 Be3 Bf5 Qa2 Bh7 Qf6 Qc4 Qe7 Qb3 Qf8 Bae7 Rb6 Nc5 Bf5+ Kf3 Qd7 Qa3 Rb3 Qb4 Qb5 Bh4 Nh6 Ne6 Qf7 Qd4 Qa3 Qb4 Rb1 Nc5 Qfa2 B4f6 Nf7 Bfe7 Bh3 Ke4 Rb3 Rdd1 Bc8 Rd2 Bf5+
2n3n1/2RR4/N1nbrn2/pP2R1N1/b2RrK1B/1qp2Q1Q/q3Np2/1krB4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 b4 Kd4 e4 c5 e5 h5 g5 a5 b6 f5 b7 h3 g6 h4 d3 c3 g7 c2 e6 c4 e7 h2 e8N h3 Ba3 c1R Nd6 c3 Qe2 Rh6 Bg2 Nc6 b8R Qb6 Nb7 Re6 Nc5 Bd7 Nd2 Bd6 Rb7 Rae8 Nde4 R8e7 Rc7 Be8 Kf2 f3 Na6 f4 Ng5 Re3 Ra2 R7e6 Rd2 Qb5 Qd1 Qa4 Bf1 Qb3 Be2 Qa2 Kf1 f2 b5 Bg6 Bh5 Be4 Bb4 Bd5 Bf3 Bb3 Ba3 Ba4 Ne2+ Ke5 Rg1 h1N d4+ Kf5 d5 h2 Kg2 f1N Bh5 Nfg3 Re1 Ne4 Rd4 f3+ Kh3 Ke5 Kg4 Nhg3 Bc5 h1Q Bb4 Bc5 d6 f2 d7 Nd6 d8R Qhd5 Rdd7 Nc8 Qd3 Bf8 Be7 Qdb3 Bd8 Bd6 Qh7 Nge7 g8Q Ne4 Qgf7 Ng8 Qf3 Nef6+ Kg3 Ra1 Bg4 Rd1 Qh3 Rc1 Re4+ Kd5+ Re5+ Kc4 Kf4 Kd3 Rd1+ Kc2 Rd4 N8a7 Bf5+ Kb2 Bc2 Nc8 Bd1 Kb1 Nf7 Nh7 Bh4 Nhf6 Ng5 Re4+
1QqR2n1/6Q1/b1Bn2p1/2N2q2/NBK3b1/1Pp1b3/B1r1rBp1/1RN1qkq1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 d4 Kd7 Kd2 Kd6 Kc3 Kd5 h4 Ke4 h5 c5 e3 f5 d5 a5 b6 g3 h6 a4 h7 f3 d6 a3 b7 f4 b3 g6 d7 f2 Bb2 g2 Nh3 f3 Nf4 a2 Nd3 Na6 b8Q Bh6 Nc1 Nc7 Ba3 Ra5 Be2 f1Q Bb4 f2 Qe1 Ra7 Bd3+ Kf3 e4 Be3 e5 Qg1 e6 f1B e7 Qf8 e8B Qf5 Qd1+ Kf2 d8N Ra8 Nb7 Nb5+ Kb2 Be2 Nc3 Bg4 Rb1 a1Q+ Kc2 Ra3 Na4 c3 Bc6 c4 Nbc5 Ba6 Bde4 Qe1 Qd7 Qg1 Rh3 Kf1 Qg7 Ra2+ Rb2 Bd4 Rd3 Bf2 Rd8 Be3 N1d3 Qe1 Nc1 Nh6 Bd5 Rg8 h8B Re8 Bc6 Re5 Qd7 Re6 Bd4 Ng8 Qg7 Bg5 Bf2 Be3 Kb1 Re7 Rbd2 Rc7 Rd1 Re2 Ka1 Rc8 Bb1 c2 Kb2 Rc7 Ba2 Rc8 N1d3 Rc7 Rb1 c1Q+ Ka1 Qc2 Nc1 Qc8 Bd2 Q2f5 Kb2 Na3 Kc3 Nb5+ Kb4 Rd7 Bc3 Rdd2 Bd4 c3 Kc4 Rc2 Be5 Qf6 Bc7 Qf3 Ba5 Qff5 Bb4 Nd6#
4RQ1B/r5K1/1qnNr1p1/5qNN/k1bN2P1/bb1pR1Qn/2q3p1/2Bq1B2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Qd3 cxd4 Qc3 h4 Qg3 hxg3 Kd2 d5 Kd3 Kd7 h4 f5 e4 a5 b4 a4 c4 g2 b6 Kc6 b7 g6 c5 Kb5 e5 f3 e6 f4 e7 f2 e8N a3 h5 f3 c6 a2 h6 Rh7 c7 Ka4 b5 Nc6 b8Q Bd7 c8N Ra7 b6 Ba3 b7 Qb6 Nh3 Re7 h7 Nh6 h8B Nf7 Ncd6 Be6 Ng7 Ng5 Nh5 Bg8 Qe8 Re6 Nd2 Bf7 Rb1 a1Q b8Q Qa2 Qf8 Bg8 Rb3 Qb2 Ng1 Nh3 N2e4 Bf7 Ne2 Qb1+ Kd2 d3 Kc3 d2 Ng5 d4+ Kc4 d1B Kd5 Qc2 Re3 d3 Nd4 Bg8 Qf4 Bf7 Qg3 Bg8 Qf8 Bf7 Be2 f1Q Rg1 Qf2 Re1 Qg1 Bf1 f2 Re4 Bg8 R1e3 Qh1 Be2 f1Q Re5 Qf2 Bf1 Rf6+ Ke4 Bc4 Re8 Re6+ Qe5 Qcb2 Be2 Rf6 Qg3 Qhe1 Bf1 Bdb3 Qg8 Qd1 Qf8 Na5 Ke5 Qbc2 Qf3 Rff7 Qf4 Rfe7+ Kf6 Nc6 Qf3 Qfd2 Qg3 Qda5 Nb7 Re6+ Kg7 Ra6 Nd6 Qf5 Qf2 Ra5 Qg3 Ra7+
qrB2KQ1/1Q3bn1/RNn3pp/3qN2P/3Qp3/BqRq2rQ/r2k4/5b1R w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 f4 fxe4 g3 e6 f5 Bd6 Nh3 Qf6 Ng1 Bf4 gxf4 Qd8 Ke2 Kf7 a4 Kf6 h4 d5 c4 b5 c5 d3+ Ke3 b3 Kd4 b4 c6 g6 Kc5 d4 c7 e3 h5 b2 a5 e5 a6 e4 a7 d2 Ne2 h6 Rg1 b3 Bh3 d3 Nec3 e2 Na3 e1R Na4 b1B Nb6 b2 Nac4 Ba2 Ne5 b1Q Ba3 Nc6 Rh1 Ba6 c8Q Qb3 Qb7 Rb8 a8R Rg1 Rc1 Rg3 Rc3 Nge7 Qf1 Qf8 Kd6 d1Q Qg1 d2 Qd4 Bf1 Ra6 Qdc2 Bg4 d1Q Bh3 Qcd3 Bg4 Kg7 f6+ Kh7 f7 Nf5+ Kd7 Ng7 f5 Qg8 f8Q Qbd5+ Qd6 Q1b3 f6 Ra8 f7 Ra7 Bh3 Qa8 Qc5 Rb8 Qc4 Kh8 f8Q+ Kh7 Qf4 Kh8 Qe3 Kg8 Nf3 Kf7 Be6+ Kf6 Ne5 Ne7 Qf3+ Kg5 Qg2 Kf4 Qh3 Ke3 Bg4 Qa5 Qg8 Kd2 Qd4 Nc6 Kd6 Qb1 Bc8 Bf7 Kd7 Qb3 Kd6 Nd8 Ke7 Nc6+ Kf8 Qad5 Ra4 Ra6 Qhd7 Ra5 Qh3 Rc5 Ra6 Ra5 Be7 Ra1 Ba3 Ra2
1rr3BK/3Q3R/N3qPb1/1pN3QQ/4Npbp/bQB1nq1k/2R2br1/4n3 w - - 0 1 illegal: No proof kernel
Q1QR1Q1N/1BnQKrq1/2bB1p2/5b1B/2rR1P1p/4nqq1/p7/b2qk2N w - - 0 1 illegal: No possible last move
4rn1Q/Q1B1R1q1/5pBN/R1K3bq/3Np3/bp1Qn3/bk1P1r1Q/1Bbn4 w - - 0 1 illegal: No possible last move, all moves rejected
5Q2/1nKr1NN1/k3p1r1/4n1NR/nq1pQ2Q/RP1b2N1/rp1n2Bq/B1b5 w - - 0 1 illegal: No proof kernel
1Q1bNq2/2K4B/RB2p2r/1rQqnpn1/QB2pRP1/r5N1/b7/Bkn4r w - - 0 1 illegal: No proof kernel
qn4N1/R1B3q1/1BN1pNkp/r1b2b2/1Q3R1P/2r3p1/1n3b1q/BNKb2Q1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 b4 fxg4 b6 c6 b5 Kd7 b7 Ke8 b6 Kd7 Ba6 Ke8 Bb5 cxb5 f4 Kf7 c4 g5 d4 a5 Kd2 g3 h4 h6 c5 b4 f5 g4 c6 b3 f6 a4 c7 b2 d5 e3+ Kc2 a3 d6 e2 d7 e1B Nh3 a2 Nf2 g2 Ne4 g3 Rf1 g1Q Rf4 Kg6 f7 Bf2 Nf6 Qh2 Qg1 Ra5 Be3 e6 Bd4 Bc5 f8Q Ne7 Bc3 Qe8 d8B Bd7 c8N Nec6 Qd6 Ne5 Ne7+ Kg7 Kd1 Nc4 Neg8 Kg6 Be5 Qe7 Qd2 Qg7 Qb4 Bc6 Kc2 Bf3 Bc3 Nd7 b8N Be2 Nc6 Nb8 b7 Bg4 Nd2 b1B+ Kc1 Bbf5 Nb1 Bd1 Bb6 Nb2 Bd4 Nd7 b8B Rh7 B8c7 Nb8 Ng4 Rh8 N8f6 Rf8 Ng8 Rd8 Bc3 Rd3 N4f6 Rf3 B3e5 Rc3+ Kd2 Rb5 Qa5 Ra3 Nc3 Nc4+ Kc1 Rbb3 Qb4 Ra4 Rb1 a1Q Bd4 Qa2 Ra1 Ra8 Nb1 Qa6 Ra3 Qb7 Ba1 Nb2 Qc4 Ra6 Qb5 Qa8 Qb4 Re3 Rc3 Ra2 Ra3 Rb3 Ra6 Ra5 Ra7 Rc3+
1Q1N3R/B2r4/3p1bNR/krq1Rb1n/P1nbKp2/1B5r/pq1r1R1N/1Q6 w - - 0 1 illegal: No proof kernel
2Rr1QR1/q7/3p1pr1/1nNBr1B1/3Pb1RK/2q3pb/R2qN3/N2kq1nQ w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c3 hxg4 Kf2 b5 Nf3 b3 Ke1 b4 Ng1 b2 Na3 b3 Nb1 Bb4 cxb4 Rh5 Nc3 Rh4 Nb1 Rh8 Kf2 Ke7 e4 Kf6 a4 Kg5 e5 c5 a5 f3 Kg3 f2 a6 f6 a7 c4 b5 c3 h3 c2 b6 Nc6 e6 Rh6 b7 Rg6 b8Q Nh6 e7 Nf7 e8R Nd6 Re6 Ne5 Bd3 f1R Bf5 Re1 Ne2 Nf3 Re4 Ng1 Na3 b1Q Ra2 b2 Be6 Nb5 Bd5 d6 Rd4 Qc7 h4+ Kh5 d3 Qc3 Bg5 c1Q Nc2 Q1d2 Na1 Bd7 Qe8 Rd8 a8N Qbc1 Rh3 b1B Nc7 Q1a3 Qg8 Qa7 Ne6 Bc2 Nc5 Be6 Nc1 Re5 Qf8 Bd7 Ne2 Bf5 Kg2 g3 Rg4 Be6 d4 Be4+ Kf1 g2+ Kf2 B6f5 Rhg3 Bd7 Rf4 Bh3 Rfg4 Nf3 Qh1 Ng1 Re3 Nf3 Kg3 g1Q+ Qg2 Qgd1 Qh1 Ng1 Rd3 Qcc2 Rc3 Qcc1 Rc4 Qcc3+ Nd3 Q1c1 Rc8 Qce1+ Kh2 Qe7 Nc5 Rh6 Rg2 g6 Bf4 g5 Nc1 Kg6 h5+ Kf5 Be3 g4 Bg5 Bf3 Ne2 Rg6 h6 Qa7 Rg3 Bfg2 h7 Bf3 h8R Be4 Rg8 Qf4 Bh4 Qh6 Nc1 Kf4 Rgg2 Ke3 Ne2 Qb2 Rg3+ Kd2 Rg2 Qe3 Bg5 Kd1 Rg3 Q3d2 Rg2 Qf1 Kg3 Qbc3+ Kh4 Qfe1+ Rf2 g3 Rf4 Qca3 Rg4 Qac3
1B6/NRb1N1q1/R1p1Qq2/2p1nn1B/3qkrb1/rQ2qbB1/R2BpP2/K7 w - - 0 1 legal: proof: e4 b5 c4 g5 a4 f5 axb5 fxe4 h4 gxh4 c5 d6 Ra5 dxc5 Ra2 Nd7 Ra1 Nb8 b4 Kf7 g4 Ke6 d4 Kd5 Kd2 h5 Kc3 e5 Kb2 a5 b6 h3 b7 e3 b5 a4 b6 h2 g5 h4 g6 e2 g7 e1Q Ra3 c6 Ne2 h3 Ng3 e4 Bd2 e3 Nf5 Rh4 Ne7+ Ke4 d5 Nd7 b8B Ne5 b7 Rf4 d6 Bg4 d7 Nh6 g8Q Nf5 Ra2 a3+ Ka1 e2 Qdb3 Qd1 Qge6 Qe8 Rg1 h1Q d8R h2 Bh3 Qf3 Rd7 h1B Bc7 Qd8 b8B Qe3 Bd6 Ra6 Rb7 Bhf3 Rh1 Qg1 Bdc7 Qg3 Rg1 Qdd4+ Nc3+ Kd3 Re1 Qh4 Rb1 Qf6 Ra7 Ra4 Ra6 Bh6 Rbb2 Ra5 Nb5+ Ke4 Na7 Bf8 Nd5 Be7 Bd6 Bd8 Ne7 Bb6 Qc3 Bc7 Rb7 Bh5 Bg4 Ra4 Rab2 a2 Qcc4 Ra3 Qb3 Bg6 Bh5 Bh7 Be8 Bg6 Bf7 Bgh5 Bg6 Bhg4 Bh5 Qg7 Bc1 Qa4 Qg6 Nc4 Bd2 Qb4 Be5 Qbc3 Qe6 Qcd3 Bf6+ Ne5 Bh4 Qd8 Rc2 Qdf8 Kb2 Qff6 Bg3 Qfg5 Kc1 Q5g6 Rb2 a1Q+ Kc2 Q6f7 Ra2 Qad4 Kb1 Qdd3+ Kb2 Qff6 Ka1 Qdd4+
3B3Q/k2NQ1Rq/1bp3BR/pr1N1q1r/1q4n1/PR2n1Rp/2Kbr3/r6N w - - 0 1 illegal: No possible last move
N6R/2b2N1r/kp3Rnq/1n2Pb1p/2K1QRBr/3r4/2Bq3p/n2r1RBQ w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 c5 Kd3 Kc7 g4 Kb6 e4 h5 a4 f5 e5 b3 g5 f3 g6 f2 g7 h3 a5+ Ka6 d6 b2 d5 f4 d7 h2 d6 b6 Kc4 f3 Na3 b1N Be3 Rh6 Bd3 f1R Bc2 f2 Nh3 Nc3 Nb5 Rh7 Ng5 Ne7 g8B Ng6 Ra4 Nc6 Be6 Nd4 Nf7 Nb3 Bg4 Na1 Bd4 Qg5 d8R Qd2 d7 Bd6 Rh8 Bc7 d8R Bf5 Rd6 Rd8 Rf6 Re1 Be3 f1R Bg1 Rd3 Qe2 Rd1 Qe4 Rff3 Rb4 Rh3 Ra4 Bd8 Rb4 Rh4 Nc7+ Ka7 a6 Nb5 Na8 Bc7 Bd4 Qh6 Rf1 Qd2 Kd5 c4 Ra4 c3 Kc4 Rdh3 Bg1 Rf3 Bb1 c2 Rb4 c1Q+ Bc2 Rd3 Ra4 Nf8 Qh1 Kb8 a7+ Kc8 Rb4 Qh6 Qe4 Qcd2 Qe3 Kb7 Rb3 Bb8 Nc7 Rd6 a8Q+ Kc8 Qh1 Rd5 Qef3 Kb7 Qe4 Ng6 Na8 Bc7 Rbf3 Ka6 Rf4 Rd3
8/1B1k1n2/Rp3bRQ/1RRp2n1/NQ6/1r3rNq/rPQbnpK1/1qB4r w - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 cxd4 f5 b6 a5 Bb7 a6 e6 axb7 exf5 Ra6 f4 Ra2 Qc7 Ra1 Qd8 Kf2 f5 e4 d5 h4 g5 c4 a5 e5 d3 e6 g3+ Kf3 g2 h5 d2 e7 a4 h6 a3 h7 g4+ Kf2 f3 c5 g3+ Ke3 f4+ Kd4 a2 c6 f2 c7 f3 Ke3 Nf6 c8R Bh6+ Kd3 Nc6 b8R Ne4 Ne2 g1N Rh3 g2 Qb3 Kd7 Ng3 Ng5 Ke3 d1R Ba6 f1R Qb4 Ne2 Bb7 Ne5 Rc5 Qc8 Nc3 Nef7 Na4 Rh1 Kf2 Rf8 h8Q Rd3 Qh7 Rb3 Qc2 g1B+ Kf1 f2 Kg2 Bh2 Rb5 Bg7 Rh6 Bf6 Rg6 Qc3 Rc8 Qe3 Nf5 Bf4 Rcc5 Qd3 Ng3 Bd2 Rb1 a1Q e8Q+ Kd6 Qe5+ Kd7 Qe3 Qa2 Ra1 Qb1 Nc3 Ra2 Na4 Re8 Qef4 Re3 Qh4 Rf3 Qh6 Qe3 Nf1 Qe5 Nc3 Qf5 Ng3 Ra8 Raa5 Ra3 Ra4 Ra2 Ra7 Re8 Na4 Ree3 Ra8 Rb3 Ra6 Qh3+
rn2k1N1/N1n4R/pQq4p/bp4q1/N1r3R1/n1PB1B2/b4Qr1/BnN1K3 w - - 0 1 illegal: No proof kernel
QQr1b1Q1/R1q5/p4Np1/7B/1Bn3rP/pb1R1Q1q/1nk1Bn2/b1n1K1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 e4 Ke7 h4 Kd6 d4 c5 b4 f5 b5 g3 b6 a6 b7 c4 Nc3 a3 Ke2 g2 Kd2 f3 Qc2 f4 Bb2 f2 Qc1 f3 Qe1 Bd7 Rd1 Ne7 Ra1 Ng6 Na2 Nf4 Qe2 Nd3 Bc3 Nc6 b8Q+ Qc7 Nb4 Be8 Re1 Na5 Rh3 Rg8 Rg3 Nb2 e5+ Ke7 e6 Kf6 d6 Kf5 e7 Kf4 Qb5 Rc8 Nd5+ Kf5 Bb4 c3+ Kc2 Nac4 Nf6+ Kf4 d5 Kf5 Kc1 c2 d7 Kf4 Qe3+ Kf5 Be2 f1Q d8Q f2 Qb3 Ke5 d6+ Kd4 Bd1 Qd3 d7 f1B Be2 Qf5 Qb8 Qh3 Bg4 Be2 Qf3 Bd1 Re6 g6 Bh5 Bg7 Rb6 Rf8 Rb7 Bh8 Ra7 Bg7 Ng4 Rf4 Nf6 Rg4 Qba8 Ne5 Kd2 c1N Ke1 Bb3 Qb8 Nec4 Qba8 Bf7 Qg8 Be8 Qb8 Ne3 Qba8 Kd3 d8Q+ Kc2 Qd6 Bh8 Qb6 Nec4 Qbb8 Bf7 e8B Bg7 Ne2 g1N Bd7 Be8 Bb5 Qh2 Rh3 Bh8 Rg3 Nh3 Ng1 Nf2 Rh3 Nd2 Be2 Ndc4 Qf4 Bg7 Rd3 Qh3 Qff3 Nbd1 Nd5 Ba1 Nf6 Ndb2
K4B2/1b3q1k/p1rp2N1/4rQ2/pR1B1N1b/1B1q1qQn/1NnPq1b1/R2N4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 bxc5 e6 Nc3 exf5 Nb1 f4 Kf2 f5 h4 Kf7 c4 Kg6 e4 a6 e5 f3 Ke3 f4+ Kd4 g3 Kd5 g2 c6 f2 c7 f3 c5 Be7 c6 Kh7 h5 g5 h6 g4 e6 g3 Ba3 Qe8 Qe1 Qd8 Nh3 g1Q Nf4 g2 Rh4 Qh1 Bc4 f1B Bb3 g1Q Nc3 Qg7 Nd1 Qf7 Qg3 Bg2 Bd6 Bf6 Bf8 f2+ Kd6 f1Q e7 Q1c4 e8N Qe2 Kc5 Ra7 Kb6 Ne7 Nd6 Ng6 Nc4 Ra8 Rg4 Bh4 Ncb2 Qhf1 Bb4 Re8 Bf8 Kh8 h7 Re5 Be7 Kg7 h8B+ Kh7 Bf8 d6 Bhg7 Qdf6 Bh8 Qff3 Bhg7 Qf5 Bf6 Bb7 c8Q Q5d3 c7 Nc6 Qf5 Nd4 c8N Nc2 Ne7 Rc8 Ka7 Rc6 Kb8 Bc8 Ka8 Re6 Bd4 Re5 Ne6 Kh8 Re4 Nf4 Ng6+ Kh7 Qh2 Bd7 Qg3 Nh3 Nef4 Bc8 Bb6 Qef2 Rb4 Q2e2 Bd4 Bb7+
2kbr1nQ/4nR1P/1B1bp2N/3r1RNQ/2q2Kb1/1np2bR1/p1Q5/R2q3B w - - 0 1 illegal: No possible last move
qB4Qq/B1rQR1qp/1r3Rn1/R4b1B/pNq1B3/4n3/1p1b3P/bK2k1N1 w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 c4 Kf7 d4 Ke6 Kd2 Kf5 Kc2 e5 f4 g5 c5 a5 d5 g3 c6 a4 d6 b3+ Kb2 g4 d7 g2 c7 g3 b6 e3 b7 Ke4 f5 e2 f6 e1Q f7 Nc6 b8Q Nb4 Qb6 Ra6 Qf6 Bg7 f8B Qe2+ Nd2+ Ke3 Ra2 e4 Kb1 Nc2 Bd6 Ne7 Qe6 Kf2 Ndf3 e3 Qg8 Ng6 Ne5 Rb6 Nc6 Qc4 Nb4 Ba1 Bd3 e2 Be4 e1B Be3+ Kf1 Bf2 Ne3 Re2 b2 Qd3 Qf6 d8R Bf5 c8B Bd2 Bb8 Qfc6 Rd5 Qa8 Nh3+ g1Q Ra5 g2 Qd7 Nc2 Bd4 Ne3 Rf2+ Ke1 Bb7 Rd6 Bda7 Rb6 Bd5 Qgf1 Bf7 g1Q Be8 Qg3 Ng1 Qd4 Rf3 Qfc4 Rf4 Qg7 Rf3 Q3e5 Rf2 Nh4 Bh5 Ng6 Rf3 Bg4 Rf6 Bf5 Qge6 Rc8 Qg8 Kf2 Nf3 Rc7 Re1 Qh8 Ng1 Qe7 Bd3 Qeg7 Bc2 Ng4 Re7 Ne3 Be4 Ke1
2b1r3/3NnN1p/1BpPnN1p/1r6/Q3Bk2/qRnQR1b1/2Rb2q1/2R2n1K w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 h4 exf4 h5 b5 h6 gxh6 axb5 Qd7 Na3 Qd4 Nb1 Qd8 Kf2 Kd7 b4 Ke6 g4 Ke5 Kg2 a5 e4 f5 d4+ Kd6 d5 Ke5 g5 a4 d6 c6 g6 a3 b6 c3 b7 c2 g7 a2 b5 Na6 b8N Be6 b6 Qd7 b7 Nc7 Nd2 Be7 Rh2 f3+ Kh1 f4 Bg2 f2 Nh3 f1N Ng5 f3 Nf7+ Kf4 e5 f2 Ne4+ Ne3 Nf6 f1N Be4 Ra5 Qd3 Rb5 Bd2 c1B Ba5 Nd1 Rc2 Qc8 Nbd7 Bd2 b8R Nc3 Rac1 a1Q Bb6 Qa3 Rb7 Bg4 e6 Bd8 e7 Ne6 e8Q Ne7 g8R Qca8 Qf8 Qa2 Rg5 Q8a3 Re5 Bh3 Qg7 Re8 Qg1 Bf5 Qgd4 Qd5 Qa4 Bg4 Ba7 Bb6 Rb8 Bf2 Rb7 Bg3 Bf2 Ra5 Rb3 Rb5 Bb6 Ng5 Nb8 Bc8 Nbd7 Ne6 Bf3+ Nd4 Re3 Qg5 Be4 Ne6 Rb4 Qg4 Rbb1 Qe2 Rb3 Qg2+
b2B4/r1QRK1Np/1p5k/2Qb4/2qnb1nr/2p1nNQ1/1PB1q1RB/1b5Q w - - 0 1 illegal: No extended proof kernel
4BN2/2RqQB1p/pr1RQ1Bn/2n3PN/1p3r2/b1N4b/3B1k1K/rrn4q w - - 0 1 illegal: No proof kernel
1Nr4q/2RrN1P1/1Q1Bp2Q/1nrp1R1q/p1q2nr1/1bRNk3/1K2B3/R5b1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 a5 g5 a4 c3 d3 f6 h3 f7 h4 b6 h2 b7 h3 c4+ Kd4 b5 Ra5 c5 Nc6 b8N Nf6 g6 Nd5 g7 Na7 c6 Nf4 b6 Nb5 b7 Qc7 Qh5 e3+ Kd1 d2 Kc2 d1R Qh6 e2 Ba3 e1R Kb2 Re4 Nc3 Ke3 Nge2 e6 Rc1 Bc5 f8R d6 Rg1 h1Q Rf5 h2 Rc2 Bd7 Nc1 Rc8 Nd3 Qf3 Be2 h1Q Bb4 Qfh5 Re1 Rd2 Ra1 Be8 Ba3 Bg6 Bb4 Q1h4 Ba3 Qcd8 c7 Qh8 Bb4 Rd1 Rcc1 Rd4 Ba3 Rg1 Bb4 Rg4 Nd5+ Ke4 Ne7 Ke3 Rc3 Bb6 Re5+ Be4 Rg5 Bd5 Rf5 Bb3 Ba3 Rd5 Bb4 Rc5 Ba3 d5 Bb4 Re8 c8R Ra7 Rc7 Rc8 Ba3 Rc6 Bd6 Bd4 Na6 Rc5 b8Q Rb7 Rc6 Rd7 Qb6 Ke4 Rc7 Bg1 Nb8 Ke3 Rb7 Qh1 Ra7 Qe4 Rc7 Qc4
2B2b1Q/1nQN2P1/ppRN3B/3nrr1R/2b3Nq/p2qN1qB/5n2/1K4kq w - - 0 1 illegal: No proof kernel
r3nQq1/1R2QNpk/4Np1N/1p1brn1R/3Kb2B/r5PB/1rNn3q/3Q4 w - - 0 1 illegal: No proof kernel
N3BB2/R1r1rp1b/Nb2bK2/q2Qp1Q1/1P2p3/1rB5/3bBRQ1/1k2qn1n w - - 0 1 illegal: No proof kernel
2NNR3/rr3pQN/3BqR2/1bprN2q/n2Q4/KB4b1/n2P1R1p/1r1bk3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 g4 Kd6 b4 Ke5 g5 Kd4 g6 a5 g7 c5 e5 h5 e6 c3 b6 h3 e7 a4 e8Q h2 b5 c2 b7 h4 b6 f3 Be2 a3 Nh3 a2 Qd7+ Bd6 Rf1 h1Q Bc4 Ra7 Na3 Ne7 g8N Nd5 Bb2+ Nc3 Bb3 Kd3 Ng5 c1R Nc4 h3 Ne7 Na4 Nh7 Qe8 Be5 Na6 b8N Rb7 Nbc6 Rb1 Nd8 Nb4 Qg4 h2 Qg7 Bg4 Nc8 Qe6 Qc1 Qg2 Kd1 Qh3 Rf2 Qh5 Bg3 Bc7 Bd6 Re8 Qg8 Re7 Qg7 Rd7 Ne5+ Ke4 Be7 Rd5 Bd6 Kf4 Bc4 Kg3 Bb3 Rb2 Rb1 a1R Qc4 Na2 Qd4 Bb8 Rc1 Rbb1 Kc2 Bc7 Re1 Bb8 Re4 Bc7 Rf4 Bb8 Re2 f2 Rf6 f1B Ref2 Ba6 Bf8 Bb5 Bd6 Ra7 b7 Bc7 b8R Rb7 R2f4 Kg2 Qf8 Bf3 Qg7+ Kf1 Ra8 Ke1 R4f5 Bfe2 Rf2 Nb2 Bc4 Bf3 Kb3 Na4+ Ka3 Bd1 Bb3 Bb8 Ra7 Rb6 Re7 Rb7 Re8 Bc7 Nec6 Bb8 Bf8 Bf4 Bd6 Bg3 Ne5 Nb2 Bc2 Nb4+ Kb3 Ra5 Qdg4 Na4+ Ka3 Raa7 Bb3 Na2 Qf4 Qeg4 Qd4 Qe6
2q3k1/1b2Qp2/3Q1n2/pRrBBBK1/n3q2P/Q1N2pQ1/r2Rnr2/b1N4r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 g5 h4 d5 e4 g3 c4 f3 b6 g2 b5 g4 c5 d3 Ke3 d2 Kf4 d4 c6 d3 c7 g3 e5 Bb7 c8B Bb4 e6 Kf8 Ra2 Bc3 Qa4 d1R Bb2 d2 Ne2 g1N Nc1 g2 Bc4 Rh5 Bd5 Nf6 e7+ Kg8 Bf5 Na6 Qa3 Rc8 Rh2 Bd4 Nc3 Nc5 Rh1 Qf8 e8Q Rf1 Qe7 d1R Ba1 Qd8 Rd2 Na4 Rh2 Rc5 Rb2 Rh7 Kg5 Ne2 Rd2 g1Q+ Rg2 Ba8 b7 Qc8 b8Q Bb7 b6 Rf2 Qbd6 Qe1 Rg4 Be5 Rb4 Bd4 Rb5 Rg7+ Kh6 Rgg2 Bb2 Ng3 Kg5 Qe4 Ba1 Rh1 Bb2 Bc6 b7 Ne2+ Qg3 Be5 b8Q Bb7 Qbd6 Rgg1 Nb3 Ra1 Nc1 Ra2 Nd1 Ne8 Bc3 Bh8 Be5 Nf6 Nc3 Bg7 Nb1 Ne8 Bf4 Ba1 Nc3 Nf6 Be5 Qd8 Bc8 Qe8 Bf5 Qc8
b6Q/B1rnp3/K2Pk1pn/1pbRnRBB/R4Q2/1r6/1BN4q/nqN4r w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 f4 c5 d4 e3 Kd3 b3 Kc4 e2 Kb5 e1Q h4 b2 a4 g3 a5 b6 a6 g6 f5 g2 d6 c4 f6 c3 d5 c2 h5 Qd2 f7 Qf4 h6 Qf2 a7 Qd4 h7 Qe8 Qf3 Qe5 Na3 Bb7 Qf4 Bg7 f8R Nh6 Ne2 g1N Rf5 Nf3 Rhh5 b1R+ Bb2 c1N Nc2 Qg8 Ra4 Nb3 Nc1 Na1 Be2 Qe4 Rhg5 Ne5 Bf3 Qf7 Bh5 Rc8 h8B Rc7 Qh4 Bf6 Qf4 Qh7 Bg7 Nf3 Bh8 Bd4 Be5 Bc5 Bf6 Ke8 d7+ Kf7 d8B Ne5 d6 Ke6 Ra6 Bd5 Ra4 Nbd7 Ka6 Rb8 a8Q b5 Ne2 Rh1 Nc1 Rbc8 Qb8 Qc4 Qa8 Qa2 Qb8 Qb1 Qa8 Rb7 Bb6 Rbc7 Ba7 Rf8 Qc8 Rf7 Qh8 Ba8 Rg2 Rf8 Rd2 Rfc8 Rd5 Rf8 Qc4 Rf7 Bg5 Rf6 Rf2 Rf3 Qf1 Ra3 Rf5 Rb3 Qf4 Ng8 Be2 Qh2 Bh5 Nh6
2K3B1/r1B1p3/2p1P2Q/R2pnN2/nr1n1NQ1/2B1Rrq1/k1bN4/2qb1rB1 w - - 0 1 illegal: No proof kernel
1qb5/2NP4/2rQQbB1/N1qp1r2/5r2/1R3qpp/R1QnN1NK/r2n1kB1 w - - 0 1 illegal: No possible last move, all moves rejected
1B2QB2/2rP3n/nQ2pk2/K2Brn1b/R3Rq1q/n4B1p/2rNp3/b1N2N2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 h5 b4 a5 d4 c5 Kd2 e3+ Kc3 e2 f5 h3 d5 h2 b6 h4 g5 h3 b5 a4 b7 a3 g6+ Kf6 b6 a2 g7 Ra5 d6 Nd7 b8Q Ra7 b7 Rh5 Bg2 Rg5 Qa8 Nb8 Ba3 Na6 b8B Rc7 Bf3 Bd7 Qe4 Be8 d7 Bg6 Nd2 Bh5 Rc1 a1N Qb3 Nc2 Ra1 Rg3 Nf1 Rg5 Bb4 Na3 Qa8 Kf7 f6 Re5 Re1 Kg6 f7 Nf6 g8B Nh7 Ra1 Bg7 f8N+ Kf6 Bgd5 e6 Ng6 Qe7 Nf4 Bh8 Nd3 Bg7 Kb2 c3+ Ka2 c4 Nc1 Qd8 Bf8 c2 Qb6 c3 Kb3 Qe7 Ka4 Qd8 Nb3 c1Q Ka5 Qf4 Nc1 c2 Rb1 Qe7 Rb4 Bh8 Re4 Bg7 Bg2 Qd8 Nf3 Qe7 Rg1 h1N N3d2 Ng3 Bf3 Nf5 Rg4 Qd8 Nd3 c1R Ra4 R1c2 Nc1 Qh6 Rgc4 Qf4 Rd4 Kf7 Re4 Qdh4 Ba7 Bh8 Qe8+ Kf6 Bb8 Kg5 Reb4 Re3 Ncb3 Ba1 Nc1 Re5 Re4 Kf6
r2nR1B1/1bNp1B2/2PRBr2/q3qr2/N6p/3Qp1bk/Q1K2b1B/2Nb2n1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 g4 Ke6 f4 h5 c4 b5 a4 h4 c5 d3 g6 e3+ Ke1 e2 Kd2 b3 g5 Kf5 g7 Kg4 f5 e5 f6 b2 f7 e4 g6 b4 a5 b3 a6 Nc6 a7 Ne5 c6 Qa5+ Nc3 Nh6 g8B b1R g7 Bc5 f8N b2 Bf7 Bf2 g8B Bb7 Ne6 Rf8 Qb3 e1B+ Kd1 d2 a8Q Nf3 Bc4 Bg3 Na4 Bef2 Ne2 Ng1 Kc2 e3 Nc7 Qe5 Qd3 Qa5 Bfe6+ Rf5 Bef7 Rf6 Bce6+ Rf5 Rh2 Qe5 Rg2 Kh3 Ra3 Ra1 Qa5 Rb1 Qad5 Ra1 Qa2 Rh7 Rb3 Rg7 Rb5 Rg6 Rd5 Rf6 Rd6 b1Q+ Kd1 Qb4 Kc2 Qea5 Bb2 Qd4 Nc1 Qf4 Be5 Qe4 Bh5 Nf7 Bf4 Nd8 Bhf7 Be1 Rf2 Qee5 Rf1 Bgf2 Bh2 Bg3 Rf4 Bef2 Re4 Rb1 Qc3 Rb6 Qca3 Ra6 Qd3 Ra8 Bb3 Qd4 Re8 Qde5 Bbe6 d1B+
q2nNr2/2rp1N2/1PpQpn2/k7/1R1Rb2Q/BB2R1n1/3b3b/bq3RKN w - - 0 1 illegal: No possible last move
BB3R1Q/2npB2p/N3q3/b4N1P/RBR1q1br/1qp4k/4Q1nn/1rK2n2 w - - 0 1 legal: proof: g4 b5 a4 e5 axb5 f5 d4 exd4 c3 dxc3 Be3 fxg4 Bg5 Ne7 Bc1 Ng8 e4 Kf7 f4 Kf6 h4 a5 b4 g5 h5 c5 e5+ Kf5 b6 a4 b5 g3 e6 a3 b7 a2 e7 g2 e8Q c4 b6 g4 Bd2 g3 Rh4 c2 Rh2 c1Q Bc3 Qc2 Rh1 Qh4 Qde2 Nh6 Be5 c3 Qe7 Ra4 Qe4+ Kg4 Na3 Nf5 Qd4 Qb3 Ne2 g1N Bg2 Ne3 Nc2 Nh3 f5+ Nf4 f6 Nf1 Kd1 Na6 b8B Nc7 f7 Bb7 Bf6 Bf3 b7 Qe6 Qe8 Bb4 f8B Ba5 Bb4 Qb3 Rg1 Qh3 Bh1 g2 Kc1 Qh4 Qee5 Kh3 Ng3 Bg4 Nf5 Re8 Qe1 Re2 Bfe7 Qf6 Qe5 Qfe6 Qh8 Rd2 Qe2 Qe4 Ne1 Rb2 Nd3 Qbe6 Nc5 Qb3 Rb1 a1Q Na6 Qaa2 Ra1 Qbe6 Qd8 Qab3 Qh8 Ng3 Rd1 g1N Rd4 Nf3 Rc4 Nh2 Ra2 Ngf1 Bf3 Bb6 Ra3 Ng2 Ra2 Ra5 Ra4 Re5 Ba7 Rb5 b8R Ba5 Rf8 Rd5 Bb8 Rd4 Rc6 Rc4 Rc5 Rd4 Rc4 Qa8 Bd5 Bf3 Bbc5 Rh4 Be4 Bg4 Bb4 Qad5 Bf3 Qd4 Bc6 Qde4 Ba8 Rb1#
3Qb3/B1P4b/1p1KB3/p4qrn/1B4R1/2b1n3/pq3nNk/Q1NQRBnr w - - 0 1 illegal: No proof kernel
2N5/2pQ1n1k/5Rrq/qb1p4/npQ2R1P/B1bR3R/2NQn3/rn2bBK1 w - - 0 1 illegal: No proof kernel
2QbqK2/1qp1R1r1/2bRPQ2/1Bbp2b1/1Q1NkB2/1npR2n1/3Rq3/N1r5 w - - 0 1 illegal: No proof kernel
r5rr/2p1k1b1/p1Q1n3/B2BRP1Q/2q5/1b2B2N/Nn1prKb1/Nq2R1N1 w - - 0 1 illegal: No possible last move
nRQR3N/1qpr2PB/2qBp1Qp/4N3/2brbq1N/1B2B1bK/8/k4q1n w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 g4 Kf6 f4 b5 Kf2 h3 Kg3 b3 a4 h2 g5+ Kf5 d6 e6 d5 e3 g6 Ke4 d7 b2 f5 h6 a5 b4 d6 e2 f6 e1Q+ Kh3 b3 a6 Rh7 a7 Ne7 f7 Nf5 Nf3 Qg5 d8Q Ba6 d7 Bd6 f8B Ng3 Be3 Bc4 Ne5 Qf4 Qh5 Qef2 Rg1 Nh1 Qc8 Rf7 d8N Nd7 g7 Nb6 Qg5 Rd7 Bd3+ Kd5 Ndf7 Qf1+ Rg2 Rb8 Qh5 Na8 Bh7 Rb4 Nd2 b1B Nh8 b2 Ndf3 Be4 Qg6 b1Q Nh4 Ra4 Be7 Qb7 Rb1 Qc6 Rb8 Rb4 Bd2 Kd4 Be3+ Kc3 Bf8 Bb3 Be7 Rd4 Bf8 Bc4 Be7 Qb1 Rd2 Qbb7 Rd1 Kb2 Rd3 Bb4 Bd6 Be1 Rd1 Bg3 Rd3 Nb6 a8B Ka1 Rd2 Qa7 Bb7 Na8 Ba6 Qab6 Bb5 Qcb7 Ba4 Q6c6 Bb3 Rf7 Qf6 Rd5 Qg6 Rd3 Nhf3 Nf2+ Kg2 Rd5 Bf8 Rd3 Re2 Rd1 Rd2 Re7 Rd5 Rd4 Rd8 Red7 Ba3 Ng4 Kh3 h1Q+ Nh2 Qe1 Bd6 Qc1 Nhf3 Nf2+ Kg2 Nh1 Kh3 Qd1 Nh4 Qdf1+
6q1/b1pP1p2/B2qn1bn/3R3b/r1KR1Np1/2NQ4/2QBB2R/1q1rRqk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 Ke4 h4 g5 b6 a5 h5 f3 b7 g3 d5 f2 b5 a4 b6 g2 d6 a3 h6 a2 h7 Bd7 Nh3 g1Q Nf4 Nc6 b8R Ra4 b7 Nd4 Rh2 Ne6 Bd2 Nh6 e3 Qg2 Qc2+ Kf3 e4 Qg3 Bd3 f1B e5 Be2 Rh5 Qf6 Rd8 Kf2 b8Q Kg1 Qbb3 Bd1 Rh2 Bh5 Qa3 Rg8 h8R g4 Rh7 Qh8 Rg7 Bc6 Rg5 Be4 Qab3 Beg6 Qa3 Qe1 Be2 Qf1 Qab3 Qf6 Qd3 Be7 Qbc2 Qg7 Rd7 Rd8 Rf5 Qg8 Rg5 Ng7 e6 Bf8 e7 Ne6 e8B Qd1 Kb2 c3+ Kb3 Bg7 Ra5 Bd4 Rd5 Ba7 Rd4 Ra6 Kc4 Qf1 Qb2 c2 Nc3 c1Q Qbc2 Qa3 Re1 a1Q Rd5 Qb1 Rd4 Ra8 Rd8 Rb6 Bb5 Rb7 Ba6 Rb5 d7 Qd6 Rb8 Ra5 Rb5 Ra1 Rbd5 Qbb6 Rh4 Rd1 Rh3 Qb1 Rh2 Bb6 Bb5 Ra1 Ba6 Ba7 Bb7 Ra3 Ba6 Ra4+
2Nq1r2/1P2Q1nB/2B1R2q/b1Qp1p2/1rN1n2n/n1B1Rp2/5r2/1bBRK1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Kc5 g5 d5 g6 h5 b6 a5 e5 h3 b3 h2 g7 d3 e6 Kd4 b4 a4 c5 f3 b5 d2+ Kf2 a3 c6 h4 c7 a2 b7 h3 b6 Bb4 e7 Na6 e8B Nh6 g8Q Nc5 b8B Ba5 b7 Bf5 c8R Ne6 Bc6 Ng7 Qh7 Rf8 Qc2 d1R Bd6 Rd2+ Ke1 Rf2+ Nd2 Ke3 Be5 f6 Rb1 a1N Bc3 Bg6 Rc7 Nhf5 Rb6 Nh4 Ne2 Ra7 Rg1 h1N Nf4 h2 Bd3 Ng3 Re7+ Ne4 Rh1 Bf5 Ng6 Ra8 Rg1 h1Q Re8 Ra6 Ne7 Bg6 Rb3 Rb6 Nc8 Rb4 Re6 Qh2 Rf1 Qf4 Rh1 Qh6 Ra3 Nb3 Rf1 Nd4 Rg1 Nb5 Rh1 Ne8 Qe7 Ng7 Rb3 Na3 Rf1 Kf4 Nc4+ Kg3 Rg1+ Rg2 Qf2+ Kh2 Qfc5 Rf2 Rf1 Ng3 Bf5 Ne4 Rg1 Bf7 Bh7 Bg6 Rg5 Kh1 Rge5 Kg1 Rb1 Nd2 Ra1 Bb1 Re3 f5 Ra2 Nf1 Rd2 Ng3 Rd1 Ne4
1k1B2nR/rPq4N/p2q1p2/b1N4Q/N1R4b/1q1b1R1n/B2p1bR1/Kr5Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 e4 d5 c4 Kd7 Kc2 Kc7 b4 f3 Kb2 f2 h4 g3 c5 a6 h5 g2 c6 g4 e5 g3 h6 d3 e6 d4 e7 d2 e8Q d3 h7 Qe7 Rh2 Ra7 Nc3 Nd7 b6+ Kb8 b5 Ne5 b7 Qc7 Ra3 Bb4 Ka1 Ng6 Na4 Nf4 Nf3 g1B Rg2 Ba5 Ng5 Nh3 Be2 Bh2 Qh1 f1Q Bd1 Qff4 Bb3 d1Q Ba2 Qb4 Qe2 Qc2 Qh5 Qbd6 Bf4 d2 Rf3 f6 Be3 Qce7 Bb6 Bf5 Bd8 Bd3 Ne4 Nh6 Nec5 Rg8 h8N Qec7 Ng6 Qb3 Nf8 Rg4 Nh7 Rb4 Re2 g2 Ref2 g1B Re2 Ra8 Rg2 Ka7 b8R Ng8 Rc8 Bf2 Rb8 Bhg3 Rc8 Qb6 c7 Bh4 Rb8 Qb7 c8R Qbc6 Nd7 Qb6 Rc4 Qbc7 Rc8 Kb7 b6 Ra7 Ra8 Qa3 Rc8 Rb2 Ra8 Qb3 Rc8 Qb8 Ndc5+ Ka8 Rc7 Qc8 b7+ Kb8 Rf7 Qcc7 Rf8 Nh6 Rh8 Ng8 Qh2 Be1 Qg1 Bef2 Qh1 Rb1+
QRqqB2N/Rp3N2/3nr1R1/p1n4b/qQr2k2/Ppb5/2B2KR1/1r1r2Q1 w - - 0 1 legal: proof: d4 c5 b4 cxb4 g4 e5 dxe5 f5 Bg2 fxg4 Be3 h5 Bf4 h4 Bg3 hxg3 Bh3 Nh6 Bf1 Ng8 f4 Ke7 e4 Ke6 h4 d5 c4 g5 f5+ Kf7 e6+ Kf6 c5 Ke5 e7 a6 e8Q+ Ne7 h5 b3 c6 g2 h6 g3 c7 d4 h7 g4 f6 d3 f7 Bf5 c8R Nd7 Ne2 g1Q Na3 g2 Nf4 g3 Rh6 Ra7 Nb5 Bg4 Nd6 Bg7 f8Q Bh5 Rg6 Qc5 Rb8 g1Q a3 a5 Ra2 Qb5 Rg2 Nc5 Ra8 Rg8 h8R Ra6 Ra7 Qa4 Qb5 Rb6 Qb4 Nf5 Qg4 d2+ Ke2 Qg5 Qa8 d1R Kf3 Rd8 Bd3 Rc8 Bc2 Qd8 Rf8 Qd4 Rg8 Qc4 Nf7+ Kd4 e5 Nd6 e6 Bf6 Rh2 g2 e7 g1R e8B Rb1 Rh8 Rgd1 Rg2 Rbc6 Kg3 Ke3 Rf8 Bc3 Rh8 Kd4 Kf2 R8c7 Qg3 Re7 Qh2 Re6 Qg1 Rc8 Nd3 Ke4 Nde5+ Kf4 Rhg8 Qad7 Nh8 Rc7 Nef7 Q7c8 Qb6 Qa4 Qb4+ Re4 Rf8 Rc4 Rfg8 Re7 Be4 Qcc7 Bb5 Qdd7 Rb8 Qdc8 Be8 Q7d8 Bc2 Re6
2K4Q/1p3nbr/1k1rbP2/3RN2q/1BQrb1bQ/R4n2/B3BpBp/qN6 w - - 0 1 illegal: No proof kernel
5nk1/1pbQ1q1b/2qpR1NK/N2rP3/1qq3B1/N1B5/2r1Rnp1/RQN4b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 g5 Kf3 f5 h4 Kf7 c4 b3 e4 d6 a4 b2 c5 d3 h6 d2 a5 Qd7 a6 Nf6 h5 Ng4 a7 Nf2 h7 Be7 h6 Qc6 Bh3 Nd7 Rh2 Nf8 Bg4 Bd8 Ne2 Bc7 Na3 b1Q Bb2 Be6 Bf6 Rc8 a8N Qb4 Qb1 d1B Nb6 Bd5 Nbc4 Bc2 Na5 Rg8 h8R Rg6 Rh7+ Kg8 Bc3 Rg7 Kg2 f3+ Kg3 Re7 Nc1 Re5 Re7 Bd3 Bh3 g4 Kh4 g3 Kh5 f4+ Bf5 B5c4 Re8 Rd5 e5 Be4 Kg5 Bcd3 Bg4 Bh7 Rg2 Bf1 Rh2 Bg2 Re6 Bh1 Rg2 Nd3 Rd2 g2 Re2 f2 Kh5 f1Q Kg5 Qca4 c6 f3 Kh5 f2 Kg5 Bb6 c7 Qc6 Kh5 Qe1 Kg5 f1Q Kh5 Qf7+ Kg5 Re8 c8Q Qbc4 Qc7 Rc8 Qd7 Qf3 Kh5 Bc7 Kg5 Nf2 Kh5 Bd3 Kg5 Qf7 h7+ Kg7 h8N Kg8 Kh6 Bh7 Bd4 Qeb4 Ng6 Ra8 Nab3 Raa5 Bc3 Rac5 Na5 Q4a6 Be1 Rc2 Bc3 Qac4
Rq2b2k/Bp1bPpnB/4rpRb/bnQ3Qr/1Nn4R/2B2B2/2K3q1/5N2 w - - 0 1 legal: proof: f4 d5 b4 g5 c4 a5 cxd5 axb4 h4 gxh4 f5 Kd7 f6 exf6 Na3 Ke7 Nb1 Ke8 d4 h5 Kd2 c5 a4 b3 e4 h3 g4 b2 d6 c4 a5 h4 d5 c3+ Kc2 h2 g5 h3 a6 Bh6 e5 Kf8 g6 Kg7 e6 Bg5 e7 Bh4 a7 Rh5 d7 Rf5 d6 Rg5 Bd2 Rh5 Na3 b1N Qc1 Nh6 Nf3 Nf5 Bg2 Nc6 Be1 Na5 Qg5 Qh8 d8B Nc4 Nd2 Bd7 Bb6 Qb8 Nf1 Kh8 Bf3 Ng7 Bd2 Be8 d7 Be1 Rg1 h1Q d8Q h2 Qd6 Bd7 Qdc5 Qg2 Ra2 h1B Rb2 Nd6 Rb4 Nb5 Rh4 Be8 Kc1 c2 Bc3 Nd2 Kb2 c1B+ Kc2 Qg4 Rg3 Nc4 Rg2 Qbf4 Rg3 Rd8 a8R Qb8 Ba7 Rd6 Rg1 Re6 Rg3 Bed2 Rg2 Nf5 Rg1 Qg2 g7+ Kh7 g8B+ Kh8 Bh7 Ng7 Kd3 Be1 Nc2 Bf4 Nb4 Bed2 Rh2 Bc7 Rh4 Ba5 Qg6 Bh6 Qgg5 Qh3 Kc2 Bg2 Be2 Bgc6 Bf3 Bcd7 Qgf5 Qd6 Rg6 Qb8 Qg5 Qg2+
4b2n/P2r2r1/1RBN1pk1/1qpn3p/1n3b1B/n4BN1/B2q1KR1/bRQ2Q2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 a4 c5 d4 h5 g4 b5 e4 c3 e5 c2 e6 b3 a5 b4 g6 f6 e7 f3 g7 Kf7 e8B+ Ke7 a6 b2 a7 b3 g5 Nh6 g8R Nc6 d5 Nb4 g6 Nf7 g7 Rh7 Na3 b1N Nb5 b2 Be2 Nh8 Bc6 Kf7 d6 Bd7 Ra6 Na3 Bg5 c1B Kf2 b1Q Qf1 Bb2 Rb6 Kg6 Bh4 Be8 d7 Ba1 Nd6 Rc8 Bd1 Rc7 Ne2 Qd3 Ng3 Qb5 Rg1 Be7 Rg2 Rb7 Rf8 Rc7 g8B Rg7 Ba2 Rb7 Ke3 f2 Bdf3 Rc7 Qc1 f1N+ Kf2 Ne3 Rf7 Bf8 Re7 Ned5 Re1 Rh7 Reg1 Bh6 Qf1 Rg7 Rh1 Qa8 d8Q Bf4 Qe7 Rb7 Qee1 Rbd7 Qc1 Qd8 Qfd1 Qe7 Qe3 Bh6 Qde2 Qe6 Rb1 Bf4 Qf1 Qe7 Qec1 Qe1+ Kg1 Qc3 Kf2 Qd2+
3r1QN1/PnB1p2B/1K2k1q1/3RpN1q/5r2/2NbQ1p1/rbqrNQ1R/6n1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 fxe6 cxd5 e5 Ke2 Kd7 Kd3 c5 Kc4 g5 Kb5 b6 h4 c4 a4 c3 d4 c2 f4 g3 h5 g2 f5 g4 f6 g3 d6 b3 a5 b2 f7 Ra7 h6 Qe8 a6 Nc6 h7 Nf6 d5 Ng4 Rh2 Na5 Bd3 Bh6 f8Q Bg5 Qd2 Nb7 Qdf2 Qh5 Ne2 g1R Nbc3 Rf1 Bd2 c1Q Ra5 Qc2 Qe3 Rg8 h8Q Nf2 Bh7 Nh3 Qff2 Rd8 Qhf8 Ng1 Be1 Ra8 a7 b1R+ Ka6 b5 Kb6 b4 Rc5 b3 Rb5 b2 Bd2 Re8 Be1 Kd8 d7 Ra1 Nd1 b1Q Qd2 Qd3 Qg2 Bh6 Kc6 Rf5 Qf2 Qe4 Qc1 Be3 Ba5+ Bb6 Qce3 Qec2+ Rc5 Qba2 Kb5 Qc1 Ka6 Qaa3 Rb5 Kc7 d8N Kd7 d6 Ra2 Ne6 Qc2 Ng7 Bd4 Rc5 Rf4 Rb5 Kc6 d7 Kd6 d8N Bf5 Nf7+ Kd7 Rc5 Bb2 Nh6 Qad3+ Rb5 Rec8 Ndc3 Rcc4 Rc5 Rd8 Ng8 Rcd4+ Rb5 Qe4 Rc5 Rd2 Rd5+ Kc8 Kb5 Bg6 Bc7 Bf5 Rc5 Kd7 Kb6 Bg6 Rb5 Qef5 Ra5 Qfg5 Rb5 Bd3 Nf5 Ke6 Rd5 Qgg6
8/pkNB1Q2/1n1q2Nr/R2P2rR/pnb4b/3Bq3/Q2rp2B/1K1rBR1n w - - 0 1 illegal: No possible last move
5N2/p1KRqB2/p2P1BpQ/k2nqQrb/1q4Rr/b3qR2/nB3r2/4N2B w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 cxd5 hxg4 a5 Ba3 a6 bxa6 Nf3 Bb4 Ng1 Bf8 Kf2 Kd7 b4 c5 h4 Kc7 d4 Kb6 e4 f5 h5 f3 Ke3 f2 Kf4 g3 Ke5 c4 d6 c3 d5 f4 d7 c2 h6 g2 b5 f3 h7 g6 Nc3 Bb7 Rh3 Bc6 Nce2 Nf6 Nf4 Ne8 Ne6 Bb4 Bb2 c1R Qd3 Rc2 Nf8 Be1 Rd1 Nf6 Kd6 Ka5 e5 Rc5 e6 Qe7+ Kc7 Bb4 b6 Ba3 b7 Rb5 d6 Rg5 Qf5+ Bd5 Rg3 Nc6 b8R Nb4 Rd3 Na2 Rb7 Re8 Be2 f1Q Rg4 f2 Nf3 Qa1 Ne1 g1Q Bf3 f1Q Bh1 Qf4 Rdb3 Qb4 Rf3 Qg7 e7 Qe3 d8B Qf7 Nd7 Ref8 e8B Qfe6 Bf7 Qe7 Bc1 Qae5 Bb2 Rhg8 h8Q Bc4 Qh5 Be2 Qh6 Rh8 Qg7 Rh4 Qh6 Ne4 Qg7 Nec3 Qh6 Qe8 Bf6 Nd5+ Kc6 Q8e7 Rc7 Rh8 Nf8 Rh2 Rd7 Rf2 Qg7 Rhh2 Qh6 Rh4 Rgf4 Nc1 Rg3 Nb6 Kc7 Bh5 Rfg4 Na2 Rf3 Nd5+
2QQq1NQ/pQnp1k1K/1N2r1Np/4Bn2/Rq3qbB/q6P/3r1b1b/R7 w - - 0 1 legal: proof: e4 b5 d4 f5 f4 c5 a4 cxd4 axb5 g6 Be2 Bb7 Bg4 fxe4 f5 Ba6 f6 Bc8 Bf5 gxf5 Kf2 e5 Kg3 f4+ Kg4 e3 Kf5 h6 Kg6 f3 g4 d3 b4 f2 c4 f1Q b6 e2 h3 e1Q b5 e4 f7+ Ke7 c5 e3 g5 d2 c6 e2 c7 Qff2 b7 Qe8 b6 Qf4 Ra4 Qh2 Na3 Qeg3 Qb3 e1B Nf3 d1Q Ne5 Qdd2 Nac4 Na6 b8Q Bb7 c8Q Bf3 b7 Qb4 Nb6 Bg4 Bb2 Bf2 Rha1 Qf3 Bc3 Qhg3 Be1 Qgf4 Qbc7 Qfc3 b8B Qa3 Qb5 Qcb4 Q7d8+ Ke6 Qbc6+ Bd6 Q6b7 Nc7 Kg7 Ne7 f8Q Rg8+ Kh7 Nf5 Ng6 Be5 Qg7 Bd6 Qb2 Kf7 Qh8 Bg1 Bf2 Bc5 Bh4 Bh2 Ne7 Bf2 g6+ Ke6 g7 Rf8 g8N Kf7 Nf6 Rg8 Rg1 Rg6 Nfg8 Rd6 Ra1 Rd2 Ng6 Nd5 Be5 Nc7 Qf3 Rb8 Na8 Rb6 Qfb7 Rbd6 Nb6 Re6
1Nr2nbQ/1R1r1B1r/2b4r/Nq4R1/NK4p1/3p2kr/2Q2pPr/2B1R1Nn w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 g4 Ba3 Be7 Bc1 Bg5 hxg5 cxd6 Nc3 d5 Nb1 d4 Kd2 Ke7 a4 Kd6 e4 Ke5 c4 b5 a5 f5 c5 d5 a6 h5 c6 f3 g6 Kf4 a7 f2 g7 h4 e5 d3 e6 h3 c7 d4 e7 b3 e8N b4 Ra2 b2 Qb3 h2 Ra1 Nd7 Qd1 b3 Na3 b1B Nf6 b2 Qe2 Qe8 Qe7 Rh7 Ne4 Ba2 Nc2 b1R Be2 f1R Qf8 Nh6 g8Q Rb6 Qc4 Rf3 Rb1 Bb7 c8N Rh3 Na1 Bc6 Nf6 Kg3 Qh8 f4 Nb3 f3 Qc2 f2 Na5 Nf8 Nd7 Bg8 Nb8 Nf5 Bf3 Ra6 Rb7 Qe5 Nb6 Qb5 Na4 Rb6 Nd7 Rc8 a8R Ra6 Nb8 Rb6 Kd1 d2 Bd5 Ra6 Bc4 Rb6 Ke2 d1R Raa7 Rd3 Rg7 Ra6 Rg5 Rd1 Rb7 Rb6 Nf3 Ra6 Rf1 h1R Re1 R1h2 Ng1 R7h6 Rc7 Ra7 Rh7 Rd3 Bf7 Rd7 Rhg7 Rf3+ Kd2 d3 Kc3 Re3 Qd2 Rh7 Qb2 Re6 Qc2 Reh6 Bd5 Rdd6 Rb7 Rdd7 Bb3 Kh4 Bf7 Ng3 Rd1 Nh1 Re1 Qb6 Kc4 Kg3 Kc3 Qa6 Kb4 Qb5+
r4bbB/Q2b1B2/1p2bQQ1/R4nK1/6Rq/1p1pnN1B/2P3r1/1B1bNkb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Kg4 d5 f4 h5+ Kh3 b6 g4 e4 a4 d3 a5 d2 a6 d4 a7 e3 Ra5 d3 Nf3 e2 Ne1 Nh6 Rg1 Nc6 Bb2+ Ne5 Ba1 Bd7 g5+ Kf7 g6+ Kf6 g7 Rg8 Qc1 d1B Qa3 Be6 Rg2 Qd4 Qa4 Nc4 Rg4 Ne3 Nd2 Bd7 Ndf3 Be6 Kh2 h3 Kg3 h2 Kh4 h1B Bh3 Bd7 Nd2 Bb7 Ndf3 Bd5 Bc3 B5e6 Bb2 Ke7 f6+ Kd6 f7 Nhf5+ Kg5 h4 Qa3 Bb5 Qa4 Kd5 Qa2+ Ke4 Qa4 Rh8 g8B Bbd7 Qa1 Qc4 Bg7 Rh6 Bh8 Rh7 Qf6 Rg7+ Qg6 Qd4 Bf1 h3 Bg2 h2 Bh3 Bd6 f8Q h1B Qf6 Bf8 Bf7 Qc4 Be8 Bg8 Bf7 Qd4 Ba2 b3 Bb1 Qa4 Ng2 e1B Qa1 Bf2 Nge1 Rc8 Qa3 Bg1 a8B+ Qc6 Bb7 Ra8 Ba6 Qd5 Bc4 Qd4 Bf7 Be6 Qe7 Qb4 Qa7 Bd7 Nd2+ Kd4 Ndf3+ Kc3 Nd4 Kd2 Ndf3+ Ke2 Kf6 Ng3 f5 Bg2 Kg5 Kf1 f6 Ngf5 Bd5 Bge6 f7 Qe7+ Kf4 Qh4 Bc4 Ba3 f8Q Bg8 Qff6 Bf8 Bf7 Kf2 Nd4 Bd5 Ndf3 B5e6 Qh6 Rg5 Qhg6 Qh7 Rh4 Rg2 Rg4 Kf1 Kg5 Qh4+
Q4B2/1n1b1R1r/1qQ1NQNb/1r3pr1/1r2bpN1/QbK3P1/B1p1k3/1n1R4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Ke7 d4 Kf6 Kd2 Kg5 e4 f5 e5 h5 d5 c5 b6 a5 g3 h3 b5 c3+ Kd3 c2 d6 h2 d7 h4 b7 a4 b6 h3 e6 c4+ Kd4 c3 e7 a3 e8N a2 Be3 c1R Qc2 Kg4 Nd2 Rb1 Ndf3 Bh6 Ng5 Nf6 Bd3 Rb4+ Bc4 Na6 b8Q Ne4 b7 Rh7 Qa7 Nac5 b8Q Nd2 Ne6 Nb7 Rd1 a1R Nf3 Ra5 Nh4 Rab5 Ng6 Kf3 Qa3 Qb6+ Kd3 Ra7 d8Q Bd7 Qa8 Rg7 Qca4 c2 Qf6 Rh7 Rhe1 h1B Bc5 h2 Bf8 Bg2 Re2 h1B Kc3 Bf1 Ree1 Kf2 Qa6 Be4 Ba2 Bc4 Rh1 Bb3 Q6a4 Rd5 Qc6 Ke2 Rh3 Rg7 Rh4 Rdb5 Rhh1 Bg5 Rh7 Rg8 Rf7 Bh6 Qh8 Rg7 Nf6 Rh7 Ng4 Ra6 Qd8 Ra8 Qdf6 Re8 Bd6 Rg8 Bc5 Rgg7 Qha8 Rg8 Bf8 Rgg7 Nh4 Rg5 Ng6 Nb1+
5nR1/Q1Q1qr1n/1b1brpNR/1b1rB2N/p1b1pK1B/P2Br1B1/N2k4/8 w - - 0 1 legal: proof: f4 c5 e4 h5 g4 hxg4 b4 d6 e5 dxe5 bxc5 exf4 Ba6 f3 Bd3 Nd7 Bf1 Nb8 Kf2 Kd7 Kg3 Ke6 c4 Ke5 h4 Ke4 d4 g5 c6 a5 c7 e5 a3 b5 c5 f2 d5 a4 d6 b4 d7 b3 h5 b2 c6 Ra7 h6 Qe7 d8B Nf6 h7 Be6 c8Q Bc4 c7 Nbd7 Bh3 f1B Qe1+ Kd3 Nc3 b1R Bd2 e4 Nge2 Rb5 Bf4 Rd5 Qf2 Bb5 Be5 Kd2 Na2 Ra6 Qg1 Re6 Nf4 Bfc4 Nh5 Rg8 h8B Nh7 Qa7 Rg7 Kg2 g3 Rag1 g4 Qcb8 Rgg6 c8N Rgf6 Qbc7 Rf3 Bhf6 Re3 Bh4 f6 Rh2 Qb4 Rhh1 Bd6 Ne7 Ndf8 Ng6 Qc5 Qd7 Qb4 Bc7 Qc5 Bb8 Qc7 Qd8 Qe7 Qdc7 Kd3 Kf1 g2+ Kf2 Kd2 Rh2 Re1 Kg3 Re3+ Kf4 g3 Re1 Bb3 Bg4 B3c4 Be2 g1B Bd3+ g2 Rh3 Bf2 Reh1 g1R Rg3 Rc1 Qcc5 Rce1 Kg4 Qd7 Nhf4 Qe8 Ne7 Rf3 Bb2 Be3 Bg5 Rc1 Rh6 Bb3 Nh5 Be5 Bh4 Rc3 Qc6 Bb6 Bd6 Re3 Kf5 Qd7 Rg8 Rcc5 Ng6 B3c4 Qcb7 Rc8 Qbb8 Rce8 Qbc7 R8e7 Ba1 Rf7 Kg4 Bed4 Bdg3 Qe7 Kf4 Bdc5 Be5 Bd6
Q1n5/RQb1npKn/8/q3N2R/Q1B5/br1bnp1B/2pr1PQb/1Nk4N w - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 b5 axb5 g5 b3 gxh4 Bb2 e5 Bd4 Nd7 Be3 Nb8 Bf4 exf4 g4 Ke7 e4 Kf6 Ke2 Ke5 Kf3 Kd4 d3 c5 b4 a5 e5 h5 e6 a4 g5 c3 g6 a3 g7 h3 e7 c2 e8Q c1B b6 a2 b5 h2 b7 h4 b6 c4 Qe6 c3 Kg4 f3 Kf5 h3 Nd2 c2 Nb1 Nc6 b8Q Bfa3 b7 Bf4 Qc7 Nge7+ Kf6 Rb8 g8B Na7 Qb3 Bf5 Kg7 Nac8 Bh7 Re8 Qa5 Bc7 Qa8 Qd5 Qc1 Rd8 Qg5 Qa5 Qg2 Be4 Bf5 Rd6 Nd2 Rd7 Qb5 Kc3 d4 Bd3 Qa4 Kb2 d5 Rd8 d6 Rd7 Rd1 a1B Nb1 Rd8 Rd2 Rd7 Re2 Kc1+ Re5 Bc3 Be6 Bd2 Rh5 Bf4 Bb3 Ng8 Bd5 Nf6 Bc4 Nh7 Ne2+ Kd1 Ng3 Kc1 Rg1 h1N Bd5 h2 Bc4 Rd8 d7 Bfd6 Nf5 Ng3 Rh1 Ne4 Ng3 Nc3 Rg1 Nd1 Nh1 Rf8 d8N Ne3 Nc6 Rd8 Qh3 Bf4 Ne5 Rd7 Rg6 Rd5 Ra6 Rd8 Ng3 h1N Ra7 Rd4 Qh2 Rd6 Bh3 Rd8 Nf1 Ng3 Qg2 Rd4 Kh8 Ngf5 Ng3 Rd7 Nh1 Nfe7 Kg7 Bh2 Rh6 Bg6 Rh4 Rd2 Rh5 Bd3 Bb3 Nb6 Bc4 Rd8 b8Q Rf8 Qbb7 Rb8 Qa6 Nbc8 Q6c6 Rb4 Qcb7 Rb3
3Rn3/1r2Rp2/RQ1Q1br1/5N1n/pq5p/1B2Q1bb/1nQPb1k1/BNK1n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 g4 Ke6 e4 Ke5 g5 c5 g6 a5 b6 h5 b7 h3 b5 h4 b6 f3 g7 Kf4 e5 Kg3 e6 c3 e7 c2 e8Q f2+ Ke2 h2 Ra2 c4 Bb2 c1N+ Ke3 c3 Qb5 c2 Bc4 f1B Qbh5 a4 Be2 Kg2 Ba1 Bd6 Qc5 Ra7 Rb2 Bh3 Nf3 Nd3 Nd4 c1B Nf5 Ne1 Bc4 Rh6 Bb3 Be2 Qdc2 Nc6 b8Q Na5 b7 Bg3 Qbd6 Qf8 b8Q Rg6 Qbb6 Nf6 g8R Rb7 Qa3 Qb8 Rd8 Nc4+ Kd4 Ne8 Kc3 Bh5 Rf1 h1N Rf3 B5g4 Re3 Bh5 Re7 Be2 Ra2 Nb2 Qac5 Nf2 Qe3 Ng4 Ra3 Qa7 Ra8 Qb8 Ra6 Ngf6 Qcd3 Nf3 Kc2 Nh5 Qde4 Nd1 Q4d3 Bb2 Qc4 Bbe5 Kc1 Nb2 Qc2 Bf6 Bd5 Bf1 Rd3 Be2 Bb3 Ne1 Qdb4 Rg5 Rd8 Rg6 Qa3 Qf4 Qad6 Qb4
nQRqb3/1Qp3r1/BN6/br1N1NQr/2pP1R2/3pn1n1/1n4KB/krQ5 w - - 0 1 illegal: No proof kernel
3b1Q1b/nQpB4/2qp1p2/1n1k4/2r1N2B/bR4br/4nPRn/2BKNN1B w - - 0 1 legal: proof: b4 h5 d4 e5 g4 hxg4 c4 exd4 a4 b6 b5 Ba6 a5 bxa5 b6 Bb5 cxb5 a4 h4 Ke7 e4 Ke6 b7 a5 h5 g5 h6 g3 h7 g2 b6 a3 e5 a2 Bd3 a4 Ne2 g1B Bd2 g4 Be4 g3 Rh2 g2 Rh6+ Qf6 Bf4 d3 Nbc3 a3 Bc1 Bh2 Rg6 g1N Ng3 Nc6 b8N Nh6 b7 Ra4 Rb1 a1B Nf1 a2 Rb3 Rc4 Bh1 Ba3 Qf3 d2+ Kd1 Bg3 Ne4 Kd5 e6 Ng4 e7 Na7 e8B Qc6 Na6 d6 b8Q Nh2 Qb7 Bf6 Nac5 a1B Nd3 Ne2 Bd7 Bd8 Ne1 Bg7 Qf4 Bc3 Qh6 Bce5 Qf8 Bc3 Kc2 d1N Rg4 Ba1+ Kd2 Ndc3 Kc2 Rg8 h8B Ncb5+ Kd1 Baf6 Bg7 Rh8 Rg6 Bfb2 Bf6 Rh3 Bh4 Bh8 Rg8 f6 Rg4 Bf4 Rg2 Bg3
Nr2R1Q1/5r2/qpBp1N1k/1Pqr2q1/1R2bN1B/3Br1n1/BQnK1rp1/8 w - - 0 1 illegal: No extended proof kernel
1qRBr1N1/p2R3q/P2n2R1/rBQKb3/r6q/1NRpQb1p/7Q/3k1qq1 w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h3 g5 Qd2 g3 Qd3 Nc6 Qd1 Ne5 h4 g4 Rh3 Nf7 Rh1 Ng5 hxg5 Ba3 Rh2 Bd6 Rh1 Bf8 Kd2 Ke7 b4 Kd6 e4 Ke5 a4 Kf4 g6 c5 a5 d5 a6 h5 g7 h4 b5 h3 f3 g2 b6 d3 Kc3+ d2 b7 Ke3 b8Q g3 e5 Rh4 e6 Ne7 g8R Bb7 f4 Nc8 f5 Bg7+ f6 Nd6 Ne2 g1Q e7 g2 Qc8 Qh2 Nd4 g1Q f7 Be5 e8Q Rh5 f8R Qh4 Ra3 Bc6 Kc2+ c3 Kb3 c2 Bb5 c4+ Kc3 Q2g3 Rg6 Qgf4 Bb2 c1R+ Qc2 d1Q Nd2 Qdf1 Ne4 Ra1 Qh2 Ra2 Rb3 Ra4 Nf6 Qh6 Ng8 Qh7 Qee6 Bb7 Qc5 Re8 Rf7 Rf5 Rd7 Rg5 Kc2+ c3 Ra3 Bc6 Kb3 c2 Bc3 c1Q Ba5 Qd2 Bd8 Qdg2 Qe7 Kd2 Qe6 Kd1 Qe7 Bh8 Qe3 Be5 Kc3 Qff4 Kd3 Ba8 Rc3 Qgf3 Nb3 d4 Re7 Qb7 Rf7 Qb8 Rd7 Qge1 Rf1 Bf3 Rf2 Qg1 Rfc2 Rg4 Bg5 Ra5 Bd8 Nf5 Kc4 d3+ Qe4 Nd6+ Kd5 Be2 Qee3 Qff1 Qb6 Rb4 Rc8 Bg4 Qbc5 Rba4 Rc3 Bf3+
K4B2/5rbB/1QBNRp2/qp6/6NR/nkb2qQb/1P2pqNb/1Bb3r1 w - - 0 1 illegal: No proof kernel
rRKNNb2/br1B4/b3p1QB/2p1bNQ1/n1pB2N1/k6q/4Pq2/1R3q1b w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 h3 g5 Bg2 g3 Bf1 Nd7 h4 g4 Qb3 Ndf6 Qc2 Ne4 Qd1 Ng5 hxg5 Ra6 Nh3 Ra7 Ng1 Ra8 f4 Kd7 d4 Kc6 Kd2 Kb5 Ke3 c5 Ke4 h5 Ke5 b3 a4+ Kb4 d5 b5 a5 g2 d6 b2 g6 g3 g7 h4 d7 h3 Ke6 h2 f5 Ra6+ Qd6 Bb7 f6 Rb6 a6 Qc8 a7 Ba6 a8N Rb7 f7 Nf6 g8Q Nd5 Qg5 Nc3 Nd2 b1Q Nc7 Na4 Ngf3 g1B Ne4 g2 Be3 Qe1 Nd4 Qf2 Rb1+ Ka3 Nf5 b4 Bd4 b3 Nf6 b2 Ng4 Rg8 Ne8 Rh8 Re1 b1Q Qc6 Qc1 Rd1 Qcf4 Rb1 Q4f3 Qe4 Qh3 Qc2 Qb8 d8N Qbf4 Nc7 Q4f3 Kd7 e6 Kc8 Qf4 Ne8 Rh7 Be5 Ra7+ Rb7 Qfh4 Nfg7 Bd4 Qcg6 g1B Nf5 Bge3 Rg1 h1B Bg2 Qe1 Be4 Qff2 Bc6 Bf4 Bb5 Bc3 Rf1 Ba5 Bd4 Bb6 Rg1 Be5 Bc6 Qb4 Rb1 Qbe1 Bb5 Qef1 Bc6 Bfd6 f8B Be7 Bh6 Ra8+ Kd7 Ba7 Rb8 Bb5 Kc8 Bf8 Bd5 Re7 Bc6 Rb7 Bd7 Ba6
5nqk/b2p3N/1Qn1Np1b/RK2BP2/BRp1B3/2Nb1q1N/n2Q4/1rq2n2 w - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 Bb2 axb4 Bc1 h5 c4 hxg4 Bh3 b5 Qd3 b3 Qd1 b4 Bg2 Ra5 Bf1 Rb5 cxb5 Qe7 Qd3 Qh4 Qd1 Qd8 Kd2 c5 Kd3 g5 Kc4 d3 f4 d2 h4 b2 a4 b3 e4 g3 e5 g2 h5 g4 e6 g3 f5 f6 b6 Bd6 e7 Kf7 e8N Ne7 b7 Kg8 a5 Nbc6 b8Q Ng6 a6 Nf8 h6 Bf4 Nc3 b1N a7 b2 Nh3 g1Q a8B g2 Ng7 Ba6+ Qb5 Rh7 Ra5 Kh8 Ne6 Qc7 Qe2 d1Q Qd2 Qf3 Bd3 Re7 h7 Bh6 Be4 Re8 Bc2 Rb8 Ba4 Qcg3 Bb7 Qg8 Ba8 Qgd1 Re1 g1B Re4 Bc8 Qb6 Ba6+ Nb5 Nc3 Rf4 b1N Bb2 Na2 Be5 Bb7 Nc3 Qc1 Kb5 Bf2 Rb4 c4 Qe1 Nd2 Qd1 Nf1 Qd2 Bc8 Bb7 Ne7 Bd5 Nc6 Be4 Bb7 Nc7 Kg7 h8N Kh7 Ne6 Bfe3 Qc7 Ba7 Ng6 Ba8+ Qb6 Rb7 Ngf4 Kh8 Nhg5 Qg7 Bb1 Qg2 Nfh3 Qh2 Rb2 Qf4 Ka6 Nd4 Qc6 Qf3 Nh7 Qg8 Qc7 Rb5 Qb6 Be4 Bd3 Nc6 Bdc2 Bd3 Rb1 Be2 Be4 Rb3 Rb2 Ncb4+ Kb5 Bd3 Rc2 Rb1 Rb2 Nc6 Rb3 Rb2 Rb4 Rb1
RQn5/2bqkqKb/2r5/bB1pn3/p2PN3/1nB1b1BQ/p1q1N3/3BR1R1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 f4 e5 c5 exf4 a3 b5 a4 bxa4 b5 Ra6 Ra3 c6 Ra1 Rb6 cxb6 c5 Kf2 f5 d4 g5 h4 d5 e4 c4 e5 g3+ Kf3 c3 h5 g4+ Ke2 c2 Kd3 a3 h6 a4 h7 f3 b7 f4 b6 a2 e6 g2 e7 g3 Qe2 f2 Nd2 f3 Rh6 Bf5+ Ne4 Qd7 Bb2 c1Q Rh1 Nc6 b8B Qc2+ Ke3 Ne5 Kf4 Bg6 Nh3 g1B Kg5 g2 b7 Bh2 Qd3 g1B Be2 f1Q Bc3 Be3+ Nf4 f2 Re1 Kf7 e8B+ Ke7 Bd1 Bh6+ Kh4 Bd2 Ne2 Bhe3 Rg1 Bhf4 Ba1 Ba5 Bc3 Ke6 Qb5 Qd6 N4g3 Nd3 Kg4 Ne7 Ne4 Nc8 Bc6 Ke7 Qb2 Rg8 h8Q Qd7+ Kh4 Bf5 Kh5 Rg6 Bc7 Re6 b8R Bd6 Qh6 Bh7 Ra8 Bdf4 Qb6 Rg6 Bb5 Rc6 Qb8 Bh2 Be5 Bhf4 Bg7 Bd6 Be5 Bdc7 Bh2 Ne5 Bf4 Qfh3+ Kg5 Qhe6 Qh3 f1N Kh5 Nd2 Bg3 Bf2 Kg5 Nb3 Kh5 Qf7+ Kg5 Rc4 Kh6 Be3+ Nf4 Qh5+ Kg7 Rc6 Ne2 Qf7+
1bN1RKq1/2nb4/Qqq3Nn/1N1Bp1R1/1B2n1b1/r1pR1p2/1kP2R2/1n5Q w - - 0 1 legal: proof: e4 b5 h4 d5 g4 dxe4 f4 g5 h5 a5 b4 gxf4 g5 axb4 Nh3 Ra6 Ng1 Rg6 hxg6 Bf5 Bd3 Bh3 Bf1 Bc8 Ke2 Kd7 d4 Ke6 a4 Kd5 a5 Kc4 a6 f5 a7 c5 a8R h5 d5 e5 d6 b3 d7 h4 g7 h3 g6 e3 Kf3+ e2 Na3+ Kc3 Rb1 e1Q Be3 b2 Rh2 b4 Bd3 b3 Rh1 h2 Be4 c4 Bd5 Qb6 d8R Na6 Nh3 Nc7 Bc5 Bd6 Rf1 Nh6 g8Q Bd7 Rf2 Qg1 g7 h1N Re8 Ng3 Rad8 Qc6 Qe6 Ne4 g8N Qg7 Rc1 b1N Bb4+ Kb2 Nb5 c3 Ne7 Qg8 Qh1 Rh7 Rg1 Rf7 Ke2 f3+ Kd3 f4 Nc8 Rg7 Rg5 Rh7 Rd2 f2 Re2 f3 Nf4 f1B Ng6 Bh3 Rf2 Bg4 Qf6 Bc5 Kc4 Ba7+ Bc5 Qa8 Bb4 Bb8 Qc6 Re7 Qa6 Re6 Qb7 Ra6 Qb6 Nd6+ Kc5 Ra3 Qa6 Ne4+ Kc4 Nf6 Kc5 Qb7 Kd6 Qc6+ Ke7 Ne4 Qg2 Kc1 Qh3 b2 Qg2 Nbd2 Qh2 b1Q Qh5 Kb2 Qh1 Qh7+ Kf8 Qg1 Rg2 Qgb6 Rf2 Nb1 Bb3 Bdf5 Rd3 Bd7 Bd5 Qg8+
B4nBq/N2Np2r/Q2QK1p1/2rQ1n1n/Rq2RqP1/6rp/1B1b3B/3k3r w - - 0 1 illegal: No possible last move
r1k1b3/p1b2R1p/q2r1q2/N1Bpn1R1/QKR4Q/3P2Rq/1b4BN/b3Br2 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b6 b5 Nc6 a5 bxa5 b6 a4 Rh3 Nd4 Rh1 Nb5 cxb5 Bg7 Nc3 Bh6 Nb1 Bf8 g4 f5 e4 c5 e5 d5 d3 Kd7 Kd2 f3 Kc3 h3 e6+ Ke8 g5 h2 g6 c4 g7 f2 e7 Kd7 e8R f4 b7 a3 b8Q a2 b6 f3 b7 Qf6+ Re5 Bc5 Be3 Qa6 Bg2 f1Q Na3 f2 Rc1 Ne7 g8R Ng6 Nf3 Bd6 Bc5 a1B+ Kb4 c3 Nc4 c2 Na5 Bc7 Rg5 Ne5 R8g7+ Kd8 Rg1 h1Q Rf7 Qh3 Nh2 Rg8 Qh5 Rg6 Qh4 Rh6 Be4 Rd6 R1g3 Nc4 Bg2 Ne5 Re1 c1B Re4 Bcb2 Reg4 Qc1 Rc4 f1R Ng4 Bb6 Nh2 Qf4 Qc7+ Ke8 b8B Bd7 Qc6 Kd8 Qb5 Be8 Qa4 Kc8 Bc7 Qf2 Bd8 Bc7 Bf6 Ng6 Bc3 Ne5 Be1 Qf6
3Nb1B1/k1q1bq1n/3RRBp1/3N2nn/1K3QN1/3rp1Pq/b4Bpn/1N1Q4 w - - 0 1 illegal: No proof kernel
Nr1kb2q/Nr1q2Rp/3Q2q1/p2Kn1p1/3n1r2/2R5/n1R1BBqP/1B3RQ1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 exf6 Bf4 f5 Bc1 f4 g3 f5 Be3 f3 Bf2 f4 Be3 Bd6 Bc1 f2+ Kd2 f3 Nh3 Bf4+ gxf4 Na6 Ng1 Nb8 Kd3 g5 Kc4 a5 b4 d6 e4 a3 e5 a2 e6 d3 f5 d2 b5 Qb6 f6 Na6 e7 Nb8 f7+ Kd7 f8R Qa7 e8B+ Kd8 b6 Nc6 b7 Nf6 b8Q Nh5 Nc3 Qa6+ Nb5 Ng3 Rg8 Ra7 Rg7 Ne2 Kd5 Ned4 c4 Ne5 c5 Rb7 Be2 f1R c6 f2 Na7 Rf8 Qe1 d1Q Nf3 Qad3 Bf7 Qg6 Be3 Qa4 Rd1 a1Q Rd3 Qc3 Be6 Rf4 Qa1 Rfb1 Nd2 f1Q Bf2 Qg2+ Rf3 Qd1 Nc4 Qdd3 Bh3 Qdf5 Rf1 Qd7 Bf5 R1b3 Qa8 Rb8 Bb1 R3b7 c7+ Ke8 Nb6 Ne6 Nb5 Nd3 Rg1 Qe7 Bc2 Bd7 c8R+ Qd8 Rf7 Qh8 Qa6 Ne5 Na7 Bb5 Rc4 Qc8 Rb1 Kd8 Rg7 Be8 Na8 Qd7 Rc6 Rf5 Ke4 d5+ Ke3 d4+ Ke4 d3 Rd1 Qc7 Kd5 d2 Qc1 Qe7 Bb1 Nd4 Rc2 Qd7+ Qd6 Rf6 Rg1 Rf4 Qf1 d1N Rh1 Qg3 Qg2 Qg4 Rf1 Qg3 Qg1 Nc3+ Kc5 Na2 Kd5 Qg4 Rfc3 Qg2+
n2b1N1N/p1n5/1b1R2p1/2n1r1kb/1Q4Pb/qQ1K2np/R2n1N1B/1B1N2B1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 Na6 h5 fxe6 h6 e5 Ne2 e4 Ng1 Rb8 Ke2 Rb3 Ke1 Rf3 Qd2 Rf7 Qd1 Rg7 hxg7 Qc7 Be2 Qb6 Bf1 Qd8 Kd2 Kf7 b4 Kf6 f4 e5 c4 h5 c5 d5 c6 e3+ Ke2 d3+ Kf3 h4 b5 d2 Ke2 e4 b6 d4 c7 a3 f5 a2 b7 h3 b8Q Nc5 g3 Be7 Qdb3 d1N Qb2 Nf2 Q8b6+ Kg5 f6 Qf8 f7 Bd8 Q6b3 Ne7 g8N Rh5 Nd2 Nd5 Nf6 Nb6 Nd7 Na8 Qb4 Qd6 f8B Bb7 Rh2 Nh1 c8N Bd5 Rb1 a1N Q2b3 Be6 Bg2 Bg4+ Bf3 Qe7 Nd6 Bb6 Bg7 Bd8 Nf8 d3+ Ke1 e2 Be5 Bb6 Bcb2 Bd8 Bbd4 Bb6 Rd1 Bd8 Nb1 Bb6 Kd2 e1B+ Ke3 d2 Nc3 Bd8 Ke2 e3 Rg2 Bf2 Nde4+ Kh6 Bb8 Re5 Rh2 Bh5 g4 Bh4 Nf2 Kg5 Be4 Qd6 Bb1 Ng3+ Kf3 e2 Rg2 Nce4 Ke3 e1B Kd3 Qc5 Bc7 Qa5 Bdb6 Qa3 Bd6 Nc2 Rh2 Nd4 Bb8 Ne6 Nf3+ Kh6 Ng5 Nec7 Kd4 Nc5 Nf7+ Kg7 Nh8 Kh6 Rc1 Kg5 Ncd1 Nd7 Rc6 Nc5 Ne3 d1N Rd6 Nc3 Ned1 Nc3e4 Ke3 Na4 Kd3 Nac5+ Kc2 N7a6 Nd3 Nb7 Rd5 Nh1 Nf4 Bef2 Nd3 Rf5 Rg2 Bg1 Bh2 Re5 Rd6 N6c7 Bc5 Bgf2 Bd4 Nhg3 Bb6 Be1 Bbg1 Bc3 Re2 Bd4 N3f2 Bb6 Kd3 Nbc5+ Kc4 Rf5 Ra2 Re5 Kd4 Nd2 Kc3 N5e6 Kd3 Nc5+
rRr3r1/2n1Q3/1pn2Rbr/1n1kbrK1/4r2N/NR1B4/pP2B1pB/4QR2 w - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 cxd4 a5 e5 a6 exf4 Bd2 b6 Be3 Qc7 Bc1 Qb7 axb7 Kd8 Ra3 Ke7 Ra1 Ke8 Kd2 Ke7 c4 Kd6 e4 f5 h4 g5 h5 a5 h6 a4 h7 a3 Qa4 f3 Ne2 d3 Ke3 a2 Ng1 f4+ Kd2 f2 Rh5 f3 Ke3 d2 Rh4 d1R Nc3 g3 Bd2 g4 Kf4 g2 Rh1 g3 Qa7 Nc6 b8R Nf6 Nb1 Re1 Na3 Ne8 Be2 f1R Rh3 f2 Nf3 g1R Kg5 Bg7 Nh4 Nc7 Bf4+ Be5 c5+ Ke6 Rb1 d5 Qb7 g2 Bh2 d4 Rb3 d3 Ra1 Re8 h8R d2 Rf8 d1N Rb1 Rh1 Rf6+ Kd7 Bd3 Nc3 Ra1 Re3 Be2 Rfg1 Rf1 Nb5 Qa7 Bb7 Qa5 Bc8 Qe1 Ke7 Bd3 Bf5 Be2 Bg6 Bd3 Bd4 e5 Re4 e6 Be5 Be2 Rg8 Bd3 Nb4 c6 Kd6 e7+ Kc5 e8Q Kd5 Bg3 Rh3 Bh2 Rh1 Be2 Rc3 Qe7 Rcc4 Rg1 f1R Bd3 Nca6 c7 Nc6 c8B Nac7 Bg4 Rc5 Bge2 Rf3 Re6 Rff8 Rf1 Rc8 Bf4 Rh2 Rf6 Rh3 Nf5 Rh4 Bh2 Rh6 Nh4 Rc2 Bf3 Rf2 Bfe2 Rf5+
8/Bb5N/bBpR3n/pRK3b1/Q4B2/bpP2k1B/1qN1rrqQ/1R3r1r w - - 0 1 illegal: No possible last move, all moves rejected
1nBq2K1/1p1n1r2/N2p1QR1/r1q1rp2/bR2q1r1/1NQ1q2B/B1QP4/4B1k1 w - - 0 1 illegal: No extended proof kernel
Qr2B3/1Qn1Q1r1/2bK2n1/QbP1p1q1/1RB1krnb/p4R1p/2NB2p1/7N w - - 0 1 illegal: No proof kernel
5Nkr/Q1NbK3/2p2n2/R6R/PrNp1B2/2pb1nbn/pQBq4/R1r2N2 w - - 0 1 illegal: No proof kernel
2Nr2q1/1Rr1NP2/kBB5/1p2K1n1/n2B1B1R/pp1QQ1rb/3np1b1/4bR2 w - - 0 1 illegal: No proof kernel
2bQ2b1/2p1pB1K/1QN3p1/R2qr2n/p2B1bn1/k1nBr3/3PQrR1/N2B4 w - - 0 1 illegal: No possible last move
1R3Q2/1pqNnPN1/B1QN3p/3bn1rQ/1Bp1RQr1/p5b1/6nK/r2k1b2 w - - 0 1 illegal: No proof kernel
BQ1Q1r1N/1rnKB3/2B1RBr1/1N2QP2/3pppR1/1bb1k1nb/2q1p3/7q w - - 0 1 illegal: No proof kernel
QqkBn1B1/B6Q/5Qn1/3Nprbp/1NP1r2p/2p5/1RqqnB2/K1R4b w - - 0 1 illegal: No proof kernel
5K1R/qn6/Q1B1nbpR/Q3bkq1/1p2N3/1Q2rpP1/p1R2b2/r1q1R1BN w - - 0 1 illegal: No proof kernel
kr2R2R/b1q1n3/2bq1Np1/1N3rQ1/P1Rb1pn1/1p1QB3/4BpR1/2q2KQ1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 h4 c5 a4 Kc7 e4 b5 d6+ Kb7 h5 f5 d5 g3 h6 f3 h7 c4 e5 b3 d7 c3 e6 b2 d6 f2+ Ke2 c2 e7 b4 e8R b3 Be3 c1Q Bd4 g6 Nf3 Ra5 Na3 b1Q Ng5 Nc6 Be3 Ne5 Nb5 Bg7 Rh4 Ka8 Ne4 Ng4 Nf6 Qdc7 d8Q Ne7 d7 Rf8 h8R Qd3+ Kf3 Qdd2 Kg2 Qdd6 Be2 Rg8 Qg1 Rf8 Ne4 Bd4 Nf6 Ba7 Ra2 Bd4 Na3 Rb5 Rc2 Rb8 Nb5 Ba7 Rh2 Ba6 Rc4 Bb7+ Kh3 Bc6 Rg2 Qc8 Qa5 Qcc7 d8Q Qda3 Rh2 g2 Nd6 Nh6 Nfe4 Ng4 Qd5 Rf7 Nb5 Qc5 Qe5 Q5a3 Qd3 Qad6 Qf4 Rf8 Qg5 Rf7 Qe1 g1B Kg2 Rf6 R2h5 Bh2 Qg1 Be5 Rh2 Qc3 Kf1 f4 Rg2 Rf5 Nf6 Bed4 Qd1 Qc2 Qd3 Qc1+
R2b1R2/1q4N1/Q4rpn/1q1pQQq1/1p2r1PK/bN2B2B/Bp2n1b1/1B5k w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 cxd4 Qf3 h5 Qf4 h4 Qg3 hxg3 a4 Kf7 c4 Kf6 h4 Ke5 f4+ Ke4 f6 b5 f5 e5 h5 g6 f7 b3 c5 d6 c6 d3 h6 g2 Kf2 d2 Kg3 d1Q f6 b2 a5 Rh7 a6 Qc7 a7 Qe2 Nf3 g1Q+ Kh4 Qgh2+ Bh3 Bb7 Nd4 Qf4 Nf5 Kf3 Be3 e4 Ng7 Qe7 c7 Nc6 c8B Nd4 Bf5 Re8 a8B Qd3 Ra5 Ne2 Rg1 Bc6 Be6 Qb7 Ba2 Be7 f8Q Bd8 Ra7 Rh8 h7 Nh6 Qf7 Rhf8 Qc4 Rf7 h8Q Re6 Bb6 e3 Nd2+ Kf2 Nb3 Bg2 Qa4 Re4 Qa6 Qdd5 Ra1 Rf8 Bb1 Kg1 Ba2+ Kh2 Rf1 Qde5 Rf3 Kh1 Bd4 Re8 Rf2 Re6 Qe8 Qed5 Qe7 Qc5 f7 Rf6 f8Q Qcc6 Qe6 Qcb6 Qf5 Qc5 Qe7 d5 Qee5 Qb8 Bc6 Qb7 Rf1+ Ng1 Na5 e2 Rf3 e1B+ Rf2 Qd2 Qh5 Ne2 Ra8 Re6+ Qhg5 Qdc1 Bb1 Bc3 Rf8 Rf6 Qgf5 Qf4 Be3 Bb4 Bd7 Ba3 Be8 b4 Bb5 Bc7 Bc4 Bd8 Bca2 Qcb5 Nb3 Qg5+
1B2n2B/R3N2Q/1r1npN2/pq2kN1q/bR1rp3/5p2/1rN1BP1b/1b1K2Q1 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 d4 Kd7 g4 Ke6 c4 f5 d5+ Ke5 b6 h5 d6 a5 b7 f4 g5 f3 d7 e6 c5 b3 g6 h3 g7 h4 c6 b2 c7 h2 Be2 h3 Bd3 Na6 b8B Ne7 g8N Qe8 d8N Qb5 Ra4 Nf5 Be2 Nd6 Nf6 Bd7 c8Q Nc7 Rb4 Ra6 Na3 b1B Nc2 Nce8 Qb7 Rb6 Ba3 Bc6 Qh7 Bh6 Qc1 Bf4 Kd1 Rg8 Bd3 Rg7 Ne2 Rgb7 Ng3 Bd7 Rg1 h1Q Nf5 Bh2 Be2 Rc7 Qg5 Rc4 Qgg6 Qa6 Qg2 Ba4 Qf1 Qb5 Rg7 Qg1 Qe1 Qg6 Qg1 Qh5 Rd7 Bf4 Rg7 h2 Ra7 h1R Bc1 Bg3 Bh6 Bh2 Bg7 Rc3 Bh8 Rb3 Qe1 Rb2 Qf1 Rg1 Qe1 Rg7 Qg1 Rc7 Nc6+ Kf4 Ncd4 Ke5 Ne7 Rc4 Ndf5 Rd4+
1n2Bk2/n7/1RN1pP1R/3bqp1R/nq4QN/KN1r4/1p1bpQ2/1bB1r1R1 w - - 0 1 illegal: No proof kernel
B3b3/QB4R1/B1Bp1bKp/R4nnP/1p4q1/NnqN3N/2rpkb1Q/5r2 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 e5 a4 exd4 Ba3 g5 axb5 gxf4 b6 Ba6 b5 Bc8 Bb4 cxb4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 h4 a5 e4+ d3 g4 a4 c3 h6 e5 a3 b7 a2 h5 f3 e6 f2 e7 Nf6 e8B Bc5 b6 Nc6 b8N d6+ Nd7 Nh7 g5 Rf8 b7 Na5 b8Q Nb3 g6 Qc7 g7 f6 Be2 f1N g8B+ Rf7 Bf3 d2 Nh3 Kd3 c4 Ra3 Qa7 Ne3+ Kg6 f5 Rg1 f4 Ba8 Rf6+ Kg7 f3 Bgd5 f2 Bdb7 f1Q Qe1 Qf5 Qg3 Bb6 c5 Ke2 c6 Ra5 Qe5 Rc5 Rg6 Qg4 Qh2+ Rf2 Rg5 Rc2 Rg6 Qb8 c7 Ng5 Nc5 Nf5+ Kf6 Be6 Rg7 Qc8 Nd3 Be3 Bb5 Bd7 Kg6 Bd4 B5a6 Bc5 Bg2 Rf1 Bge4+ Bf2 Bg2 Qd8 c8B Qc7 Bcb7 Qc3 Bgc6 Rh1 Na3 Rf1 Nb5 Qcd4 Rb1 a1B Rb2 Qc4 Ra2 Bf6 Ra5 Qc3 Na3 Be8+
1b2q1q1/1B3QQ1/2pKn1Bb/6p1/NRPR3B/kb5N/r3ppqB/rn4N1 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 axb5 h6 e4 dxe4 Qe2 Qd4 Qg2 gxf4 g5 Qd7 g6 Qd8 Qg5 hxg5 Ke2 Kd7 d4 Kd6 c4 f5 b4 e5 h4 a5 h5 f3+ Ke3 f2 d5 a4 g7 a3 b6 a2 h6 Qe7 h7 Nd7 b5 Kc5 b7 Kb4 b8B Ngf6 g8B Qf7 b6 Bh6 b7 Nf8 d6 Bd7 Rh4 Ne6 Nc3 Ba4 d7 Bb3 Bd3 f1Q d8N Qg2 Bd2 Ka3 Rb1 a1B Na4 c6 Be1 Qf8 Rg4 Bc3 Bh4 Bb4 Bf7 Qg8 Bg6 Bd6 Bc7 Ra5 b8Q Ra6 Be2 Ra8 Qa7 f4+ Kd2 e3+ Kc3 f3 Rd4 f2 Bg4 e4 Bh3 Bdf8 Bh2 e2 Qf7 e3 Bg4 e1Q+ Kd3 Ng7 Ne6 Bd6 Nf4 Ne6 Nfh3 Ne4 Rb2 Nd2 Rb1 Nf3 Ke4 Nd2+ Kf5 Ra7 Kf6 Bc7 Ke7 Ra6 Rb2 Nb1 B4f5 Bb8 Bg4 Nc7 Bc8 Ne6 Bb7 Qe2 Kd7 Qh5 Ke7 e2 Kd7 Qg7 Ke7 Rc8 h8Q Qg8 Qe5 Rd8 Qc7 Rd5 Qg7 Rda5 Kd6 Ra8 Be4 Qhe8 Bg6 Bd1 Rb4 Bb3 Nb6 Kb2 Qf7 Ra1 Qg7 R8a2 Na4+ Ka3 Qf7 Qe4 Qg7 Qf3 Qf7 Qg2 Qg7 Ba7 Qcf7 Bb8+
4KN1B/RR1b4/Bpr1B1Rq/bQ3Pb1/1Nnn4/1pB5/q2r1p1p/3Q2qk w - - 0 1 illegal: No proof kernel
k7/3B2qN/rpnr2NB/1p2QR1n/1NP1KQb1/r1p1R1p1/1q4Q1/1bb4Q w - - 0 1 illegal: No proof kernel
k3b3/r4NrB/Bp1p1R1N/3n1q2/pbBn1R2/Q1P3Bp/1q2Q3/qb1K3N w - - 0 1 illegal: No proof kernel
b2QB1nN/2Qr1b1n/p2R1p1R/3Bb1n1/P5N1/3Q4/p2pRq2/2KQrkq1 w - - 0 1 illegal: No possible last move, all moves rejected
N3KQ2/1nq2QPn/4p2B/1R1R3b/1bRp4/3bqq1p/3r1rp1/kBN3QQ w - - 0 1 illegal: No proof kernel
q2Qb1n1/1kbBR1pr/3n1Q2/1qq1B3/r1p1R2R/1nB4p/1Np1P1N1/K3B3 w - - 0 1 illegal: No possible last move
2bq2qn/2bB2p1/3rr3/2pk4/QR1B2BR/B2KP2p/n2p1Q1N/R1r2N1b w - - 0 1 illegal: No proof kernel
K3r2b/Qn3PQr/1Nqp1B1p/pb1B4/2Rq4/4RBp1/B1nNrk2/n2Q4 w - - 0 1 illegal: No proof kernel
6RN/kn2np2/2Bpr1b1/qb1QbQ2/pN2q1BR/2p3rP/1R4KB/4B1n1 w - - 0 1 illegal: No proof kernel
qr6/2n2pNR/2p1pQQb/5R2/1pB2P1n/2BQN1bq/1r2Bq2/k3K1Br w - - 0 1 illegal: No possible last move, all moves rejected
3QNR2/RN2p2k/QN1pB3/1p6/2p1q2r/1Pbr4/1n1Qb2B/r1qQ1qKn w - - 0 1 illegal: No proof kernel
1r3Bq1/QR2p1KR/bqp1N3/N1n2bR1/nr3b1Q/2Bp2pR/3P4/1Nn3k1 w - - 0 1 illegal: No possible last move
1B5N/1KP4N/1br1B3/N1Rnpb1p/k2q2Rq/2R4R/qp1Qb1pQ/2rn4 w - - 0 1 illegal: No proof kernel
1q3N2/2p1QR1r/NpR2N1q/3p4/KnBn3b/N1Pb2pB/2bk2B1/nQ2r3 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Bf4 g5 Bg3 hxg3 Qd5 g4 Qd3 Qh4 Qd1 Qd8 Kd2 Ke7 f4 Ke6 e4 g5 a4 d6 h4 b6 h5 b3 Kc3 b2 Kb4 g2 a5 g3 f5+ Ke7 h6 g4 e6 Kf6 e5+ Kg5 c3 Kf4 h7 Ke3 e7 Nd7 e8B Nb8 e6 Bd7 a6 Ne7 f6 Nbc6+ Ka4 Qc8 a7 Nd5 f7 Be7 f8N Bh4 e7 Ndb4 Ne2 g1Q Nc1 g2 Na3 b1B Na2 g3 Bc4 Bd3 Qb1 Nc2 Nb4 Qc1 Na6 B7f5 Bd7 g1N e8N N6b4 Nf6 Qb8 Rh2 Bfe4 Bh3 Nf3 Ra2 Na1 Raf2 Nd4 Rf5 Rg8 h8Q Rg7 Qh7 Rf7 Rh1 Kd2 Rc5 Bf5 Rc6 Re7 Rf1 Re1 Qe7 Bc2+ Qb3 Bfd3 Rf3 Qb7 Rf5 Rd8 a8B Qb8 Ng6 Rh8 Nf8 Rh7 Rf4 Bf5 Bb7 Bcd3 Qb1 Bg6 Bbc8 d5 Bg2 Bge4 Rf5 Ke2 Rf1 Qh6 Bch3 Kd2 Ng8 Nab3 Rf7 Bc2 Nf6 Bg6 Qb2 Bd3 Qb1 Na1+
k1N5/N1pR1q1N/1p1R1p1b/1Knq1rrQ/8/2P4N/1n1BBpQ1/B2qb1r1 w - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 g4 dxe4 g5 a5 h3 Bg4 hxg4 axb4 Ke2 Kd7 a4 Kc6 d4 h5 c3 e5 g6 b3 a5 h4 g7 b2 a6 h3 g5 h2 a7 b6 g6 Kb7 d5 e3 Kd3 e2 Kc4 e1R d6 e4 d7 e3 Qh5 e2 Nh3 f3 Na3 b1Q Nb5 f2 Bb2 Qe8 d8B Nf6 g8N Nc6 g7 Nb4 Ne7 Nd7 g8N Bh6 Nf6 Rg8 Nh7 Nd3 Nc8 Rg2 Bh4 f6 Bg5 Rg4+ Bf4 Rg5 Ra5 Qc1 Ba1 Nb2+ Kb4 Qf7 Ra2 Nd1 Rd2 Nb2 Rg1 h1Q Rg4 Ne5 Rd7 Qd1 Bd2 Qc6 Rgd4 Ned3+ Ka3 Qg2 R4d6 Qc6 Ne7 Re8 Nc8 Nc5 Kb4 Re3 Bg2 Ree5 Bf3 Reg1 Bg4 e1B Bf3 Ka6 Be2 Qb7 a8Q+ Qa7 Nf4 Ref5 Qg2 Qb7 Nh3 Qbd5 Nba7+ Kb7 Kb5 Ka8
n2BQ2Q/kPN5/1p1p1q2/1RRN1rnr/p7/1pb2Rb1/r5NK/2Nq1b1B w - - 0 1 illegal: No proof kernel
5nq1/qp1B1Qr1/P1Qp1Q1B/K2p1b1q/n7/b4Q2/p1Rr1rN1/1k2N1RR w - - 0 1 illegal: No proof kernel
2b1Q2R/pBNn3q/3B2p1/b1KpqrPR/B6Q/1p3bQ1/2kq2N1/4Bnr1 w - - 0 1 illegal: No proof kernel
2R3Rr/pb1Qr2p/N3QpBb/P2b3Q/3nK1QB/6qp/nr2N1Bq/k7 w - - 0 1 illegal: No possible last move, all moves rejected
1r3Rnq/p1QB1p2/1nN3q1/2BQK2B/qBQ2rP1/1p3p2/r1N2b2/3R1b1k w - - 0 1 illegal: No proof kernel
1R2nr2/1R3BBK/Bb1k1pQ1/N1bB3b/2pn1p1q/8/PQ1Q1p2/b3r1bN w - - 0 1 illegal: No proof kernel
2B2N2/2Bpn2Q/2n1P1n1/3R1rb1/RR1NrnK1/1p4RB/pnqp1Q2/2k4b w - - 0 1 illegal: No proof kernel
5nk1/pN4pr/RN1B4/N1b4Q/PB5r/3p1QbN/2R1B1pr/rr2qnK1 w - - 0 1 legal: proof: d4 h5 c4 b5 e4 e5 g4 exd4 f3 Bb7 e5 Be4 fxe4 hxg4 Bf4 bxc4 Be3 Bd6 Bc1 Bf8 Kf2 c5 b4 d5 a4 f5 h4 Kf7 h5 c3 h6 g3+ Kg2 f4 b5 c2 b6 d3 b7 d2 h7 c4 Rh6 f3+ Kh1 d4 Nh3 d3 Be2 f2 Ra6 c3 Ra2 Nd7 b8B Qe8 Ba3 c1R Bb4 c2 Na3 Ngf6 Nc4 Nh5 Na5 Ra1 B8d6 c1B Rc2 f1R+ Kg2 Rf4 Kg1 Be7 e6+ Kf8 e5 g2 Qf1 Ng3 Qf2 Nf1 Qf3 Rg8 h8N d1R Nf7 Rh4 Nd8+ Bf4 Ndb7 Rgh8 Qe4 Kg8 Qf3 Beg5 e7 R8h7 e6 Rab1 Qf2 Bg3 Qf3 Qg6 e8N Be7 Nc7 Qe8 Nd5 Nf8 Nb6 Ra1 Bb8 Rdb1 Bc7 Bed6 e7 Rc8 Bb8 Rcc4 Bc7 Rcd4 Bb8 Bc5 Bd6 R4h6 Nf4 Rh2 Nh3 Qc6 e8Q Qe4 Qeh5 Qe5 Bd1 Qe1 Be2 Rh4+
3KrrQQ/pBpn3b/2rPR1n1/pr6/3p1NQ1/2RqBQ1N/1b6/k4rB1 w - - 0 1 illegal: No possible last move, all moves rejected
bq2n3/N2Qb2K/1r1RN3/kBp3p1/br3P1Q/2pRp1Q1/6r1/1Qnb2BB w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 c5 f5 exf5 d6 Ke2 dxc5 Ke1 c4 Ke2 Kd7 Ke3 Kc6 Ke4 Kb6 d4 c5 f4 e5 a4 b3 h4 c3 a5+ Kc6 d5+ Kc7 a6 Kb6 a7 g3 h5 g6 d6 b2 h6 g2 h7 Nc6 d7 Rb8 a8B Na5 f6 Nb3 f7 Be7 Nf3 g1R f8Q Rg2 Na3 Ka5 Rh6 b5 Qg7 b4 Ng5 Rb6 Be3 Nc1 Bg1 b3 Ne6 b1B+ Qc2 b2 Bb5 Qe8 d8Q Bd7 Qc7 Ba2 Qb1 Qb8 Rh3 Bc4 Rd3 Bb3 Qb7 Be8 Qd7 Bd1 Rd6 Nh6 Ra2 Nf5 Bd5 Rg8 h8Q Rf8 Qgg8 Ng7 Qh4 Rf6 Qg3 g5 Qh8 Rg6 Qhh4 Rf6 Qb7 Bc6 Qd7 Ne8 Ra1 Rg6 Kf5 e4 Ra2 e3 Be4 Rf2 Bh1 Ba8 Rd3 Rg8 Ra1 Rf8+ Kg6 Rg2 Kh7 Ba4 Bc6 Rb4 Nb5 Rf6 Na7 Rg6 Bb5 Rf6 Qc2 b1B Qb2 Bc2 Qb1 Bd1 Ra2 Rf5 Rad2 Re5 Rd6 Ree4 R2d3 Rb3 Bc6 Rb6 Bb5 Rb4
4r1Q1/2b5/1k1q3B/pBp1NnQp/2BQ4/P1R1pnrn/2K3N1/rb1QR1n1 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 gxh4 c6 d6 c5 dxc5 d4 e5 Kd2 b5 f4 h5 g4 a5 g5 b4 a3 h3 f5 b3 g6 e3+ Kd3 h2 c7 Kd7 f6 Kc6 g7 e2 d5+ Kb6 d6 e1N+ Kc3 e4 d7 b2 f7 Nf3 Ne2 Bd6 f8Q Nc6 Nf4 Nce5 Bb5 Nh6 g8B Nf5 Qf6 Ng1 Bgc4 Re8 Ng2 Nef3 Bh6 e3 Nd2 b1R Kc2 Qe7 d8Q Be6 c8Q+ Bc7 Qdd7 Qd6 Qg5 Bd5 Ra2 Ra1 Qdg7 Be6 Qd4 Rg8 Qf8 Re8 Rb2 Rg6 Rb3 Rg7 Rc3 Bf7 Bd3 Ba2 Bdc4 Rg6 Qg8 Rg7 Qgf6 Rg3 Qfg6 Nh3 Rg1 h1N Re1 Nhg1 Qgg4 Nf2 Q4g5 Nh2 Nf3 Nfh3 Ne5 Nhf3 Be2 Qe7 Bed3 Qd6 Bdc4 Bb1+
2nKb3/2nQ4/1rpRrN1b/N4BP1/pn5B/1p2Q1n1/qkp3R1/1b1Q1BQ1 w - - 0 1 illegal: No proof kernel
2r3R1/2b2NBr/R1pbpnnn/Qp3pB1/r1kB1P2/1q5N/3Q4/n1KB3N w - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 e4 a5 h4 axb4 d5 Be6 d6 Bd5 exd5 gxh4 Kd2 Kd7 a4 h5 g4 f5 g5 b5 g6 c3+ Kc2 c6 a5 h3 f3 e6 a6 h4 g7 h2 a7 h3 Bd3 Nf6 Bh6 b3+ Kc1 c2 g8N Be7 Nc3 b2+ Kd2 b1N+ Kc1 Rh7 Bg7 Na3 Nce2 Qb6 Ng3 Qe3+ Qd2 Rh8 Nh6 Rc8 Bf1 Qb3 Nf7 Bd8 N1e2 Bc7 Rg1 h1N f4 Nf2 Nh1 h2 Rg5 N2g4 Ng1 Nh6 Be2 Qa4 Bd1 Qb3 Ng3 h1R Nh3 Nfg8 Bd4 Ne7 Rg8 Ng6 Ra2 Na6 Ra1 Nc5 Ra2 Rh2 Nh1 Ne4 Ra1 Nf6 Ra2 Rab8 a8Q Rb6 Ra1 Ra6 Qa7 Ra4 Qaa5 Nhg4 N3f2 Rh7 Nh3 Nh6 Ra2 Rf8 Ra1 Ke8 d7+ Ke7 Ra2 Rc8 d8B+ Kd7 Nh8 Kd6 Ra1 Ne8 Bg5 Nf6 Ra2 Ne8 Bg7 Kc5 d6 Nf6 d7 Kc4 d8B Qe3 Kb2 Qg3 Nf7 c1B+ Ka1 Nc2+ Kb1 Ba3 Be7 Nd4 Bc5 Nc2 Bd4 Bad6 Kc1 Na1 Qa8 Rb4 Ra6 Ra4 Qa7 Qb3 Qb6 Ne4 Qba5 Nf6
k2r4/bb2n1Br/1pQN1b1p/6p1/4B1rQ/RqQbN2R/RP1n2Kp/1Q6 w - - 0 1 illegal: No proof kernel
R2RqB2/2KR1Q1P/Np1n3R/1p2p3/B1pQN1kr/2b1n3/1N4br/1r1r1b2 w - - 0 1 illegal: No proof kernel
4r2b/1k1n3p/1r3Nr1/bQ1N2Qb/B3pp1B/n3pq1P/B5Rb/1R1R1KB1 w - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ke2 g5 Ke1 gxf4 d4 Kd7 g4 c5 b4 Kc7 b6+ Kb7 h3 e5 b5 a5 g5 e3 d5 c3 d6 c2 g6 a4 g7 a3 d7 a2 Qd4 Ne7 g8B Nec6 Nf3 Nb4 Ng5 Ra6 Ne4 Qg5 d8B Qg2 Qc3 Bg4 Rh2 Nd7 Bh4 Qf3 Nf6 Bh5 Rg2 Bg7 Bb3 Re8 Ba4 Bh8 Bb2 c1B Bc4 Kc8 Qd3 Kb7 Bd4 Bb2 Nc3 Ba3 Bf2 Nc2+ Kf1 Bb4 Rd1 a1R Qf5 Rb1 Qg5 Ba5 Ncd5 Na3 Ba2 c4 Bc5 c3 Be7 c2 Bd8 Kb8 b7 c1B Be7 Ka7 b8R e4 Rb7+ Ka8 b6 Bcd2 Bd8 Be1 Be7 Qg3 Bg1 Rb4 Rc7 Rb1 Rcc1 Kb7 Bd8 Rb4 Rb1 Qg4 Be7 Bg3 Bd8 Bh2 Be7 Kb8 b7 Re6 Bd8 Rbb6 Be7 Ka7 b8Q+ Ka6 Qbe5 Kb7 Qb2 Qg3 Qb5 Qg4 Bb4 Rd6 Be1 Rde6 Bh4 Qg3 Ng8 Rg6 Ngf6 Qf3+
RRKr4/rR1N1rpR/3QN3/1B3k2/7B/1Bpnp3/P1b1p1b1/bqQnb3 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1R2nb/3n2p1/3B4/N3n1p1/r2b1NP1/1Q1nB2R/1pKrbp2/NN1q1Bk1 w - - 0 1 illegal: Other
rRN5/n2np1B1/nN2Pb1r/1R5p/2QnN1pQ/1BN2k2/R4p2/1rq2Kb1 w - - 0 1 illegal: No possible last move, all moves rejected
QQr5/3Qp3/B2KP2n/bp4Nn/3B1Rpn/N3QRr1/2p1rnb1/3q1k1N w - - 0 1 illegal: Other
b5K1/rr1p4/PN3b1r/2n2N1Q/q1npk1b1/2B1pr2/1N1BQpBB/1R5R w - - 0 1 illegal: No proof kernel
4bk2/nrP2pN1/q3pb2/2Rn1Bpp/3R3K/2n1BB2/2QB4/QbRNr1n1 w - - 0 1 illegal: No possible last move, all moves rejected
2nQ4/2p1rb1q/nb1p1BB1/2NRNRnp/Q3PN1n/1b1K1N2/2R1rp2/5k2 w - - 0 1 illegal: No proof kernel
qQ6/3n1k1K/1P3qp1/Qn1pQN2/1Q2bpNB/3rR2B/rRq3pB/4bq2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 c4 a5 h4 f5 e4 d3 b4 a4 b6 a3 c5 g3 b7 g6 c6 a2 h5 f3 Ke3 f2 Kf4 d2 h6 Qd6+ Kg5 Bg7 c7 Bd7 c8Q+ Kf7 b5 Qf8 b6 Ra5 e5 Ke6 h7 Ra8 Qe1 d1Q Ne2 Nf6 Rh2 Ra3 Bf4 Qf7 Qcc3 Rg8 h8B Qd3 Qb4 Rb3 Bh3 f1Q Na3 Qe8 Nd4+ Kf7 Rb2 g2 Bh2 f4 Nf5 Bb5 Nc2 Nbd7 Nce3 Qc2 b8Q Bd3 Ng4 Be4 Qa5 Re3 Qeb4 Rd3 Re1 a1Q Re3 Bf8 Bg7 Qd8 Kh6 Ne8 Kh7 Qf6 Bh6 Nc7 Bg5 Nb5 Bh4 Bc5 Qba7 Ra8 e6+ Ke8 e7 Kf7 Qb8 Bd6 Qd4 Bb4 Qbe5 Be1 Qdb4 Qcc6 Qb8 Qac1 Qe5 Q1c2 Qb8 Ra6 Qe5 Qa8 Qb8 Ke6 e8Q+ Qe7+ Kh8 Nc3 Qab5 Ra2 Q5a5 Nb5 Qc7 Rb3 Qeb8 Kf7 Qe5 Qf6+ Kh7 Rd3
2Q1Rq1N/1BQbR1Q1/Pp1QKbp1/nk2N3/3b2n1/2r4r/3pN2p/1qb3B1 w - - 0 1 illegal: No proof kernel
qnbB4/1Q3nb1/prPr4/KN1rR1pq/R3N3/r1pQ1B2/1p1B1N2/6kN w - - 0 1 illegal: No proof kernel
r3R2B/2Nk1B1P/p3q1Q1/2p1Qq2/K1bn1BRN/1rb1ppNn/q1q5/7N w - - 0 1 illegal: No proof kernel
bQrK4/B4pkq/B2N1n1R/1Np3r1/1p2NRpn/1b3nR1/5P2/2n1N1qQ w - - 0 1 legal: proof: c4 d5 b4 dxc4 d4 h5 g4 hxg4 e3 e6 b5 Bc5 d5 Bd4 b6 axb6 exd4 b5 Bg5 b4 Bh6 Nd7 Bc1 Nb8 Kd2 Kf8 Ke3 b5 Kf4 g5+ Ke5 g3 h4 g4 a4 b3 d6 b4 h5 c3 d5 c6 h6 c2 h7 g2 d7 b2 Kd6 e5 a5 e4 a6 e3 a7 e2 Nf3 g1Q Ra3 e1N Ba6 Kg7 Nbd2 b1B Rh6 Qb6 d8N Qg2 Ne4 Qe3 Kc7 Ba2 d6 Qg5 d7 Ne7 Be3 c1N Nb7 Qg1 d8R Rg8 Rd4 Nf5 Nbd6 Nh4 Rc4 Qf5 h8Q+ Kf8 Bb6 c5 Kd8 Nd7 Rd4 Rb8 a8N Bb3 Ba7 Qh7 Nc7 Nf6 Ncb5 Ra8 Rc4 Rb8 Qd5 Ra8 Qc6 Bb7+ Qc8 Bc6 Qb8 Bb7 Ne5 Nef3 Nd3 Nd5 Qa1 Rg5 Ne1 Nf6 Qb1 Kg7 Qa1 Ba4 Rac3 Bb3 Rd4 Ne5 Rg3 B7d5 Nd2 Nef3 Rf4 Bb7 N2e4 Bc6 Qc8 Rb8 Qb1 Ba8 Qa1 Rb7 Qb8 Rc7 Ng2 Na2 Bb6 Qh2 Qh1 Nc1 Ne1 Qg1 Ba7 Rc8+
2qBK3/2rB1pbp/Q4bqr/p1n4B/NB2kn2/b1R4P/1R1bpQN1/5N2 w - - 0 1 illegal: No proof kernel
3B1q2/4p2r/5k2/p1p1RNn1/Nb1KbPr1/Bq2Q1p1/1n1RQ1qB/1RqB4 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kf7 Ke3 a5 h4 g5 b4 c6 d4 c3 d5 c2 h5 g3 h6 g2 b6 g4 b7 Bd7 h7 Qc8 b5 Kf6 d6 Bf5 b6 Nd7 b8Q Ne5 b7 Qe8 d7 Nh6 d8B Nhf7 Nc3 Nd3 Rb1 Bh6+ Qf4 Ng5 b8B Qf8 Be2 Nb2 Kd4 e3 Nf3 g1Q Rh2 Qg2 Na4 Bg7 Qg3 Be4 Nh4 Bh6 Bf3 e2 Nf5 e1Q Qe2 Qeh1 Qf4 Qd1+ Qfd2 Rg8 h8R Rg7 Rh5 Rh7 Bh2 g3 Bg4 Bg7 f4 Rb8 Qe3 Qdf3 Qee2 Qb3 Qde3 Rb5 Bd2 c1Q Bb4 Re5 Ba3 Nf7 Nh6 Rg5 Rg8 Rg6 Re5 Bh8 Bf3 Rg4 Nf5 Ng5 Rg6+ Kf7 Rd6 Bg7 Rd5 Kf6 Rd6+ Qe6 Q2d3 Qgh1 Red5 Qg2 Bd1 Nf7 Qde2 Ng5 Rb5 Bh8 Rdd5 Qeg8 Rdc5 Qb3 Rc2 Kg6+ Kc5 Bc3 Rd2 Bb4+ Kd4 Kf6 Re5 c5+
K4k1q/1n2pp2/Q1pRP3/br1RpQbB/4q1R1/2b1b3/Q2BQn2/4NrN1 w - - 0 1 illegal: No proof kernel
2K1B1N1/RN1p2N1/1n5B/4n1b1/b2q1QpR/5PpR/rp2rkNq/2q1q2Q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 h4 e5 c4 g5 a4 d3 h5 d2 a5 b6 f3+ Ke3 h6 b3 a6 e4 h7 g3 a7 b2 f6 g4 f7 Bb7 c5 Bh6 f8Q Qg5 Bc4 Qe5 Ne2 Qe8 c6 Ne7 c7 Nc8 Qf4+ Kf2 Nbc3 e3 Bf7 Bg5 Nd5 Nc6 Ne7 Ne5 Ng8 Bc6+ Ka6 b1Q Rh4 b5 Qh1 Nd6 c8N Ndc4 Nd6 d1Q Nb7 b4 Ra2 Qe7 Be8 b3 Ra4 b2 Ra1 Rb8 a8N Qd4 Nc7 Ba4 Ne6 Rd8 Bd2 Qc1 Ng7 Qf7 Rh3 Qh5 Ra2 Rc8 Ra1 Rc5 Ka7 Rb5+ Kb8 Ra5 Kc8 Ra6 Qe4 Re6 Nf4 e2 Ng2 e1Q Qf4 Qh6 Nf6 Rf8 h8R Ra6 Rh4 Rf7 Rh7 Re7 Ng8 Bc2 Qf5 Ng6 Rh5 Bf4 Ra4 Re2 Qf6 Nge5 Rh2 Qh3 Rh4 Bh6 Bg5 Ra7 Qf4 Ra5 Rb4 Ra2 Ra4 Bd1 Ra7 Ba4 Ne3+ Qg2 R2h3 Qgg1 Ng2 Qh2 Nh5 Bg7 Bh6 Bf6 Ng7 Bd8 Qf7 Bg5 Qf4 Nb6+
3b1nqQ/3pN1n1/2b2N2/1B4k1/p1RQ1Rqb/pPrRN2r/3p2K1/2b2RB1 w - - 0 1 illegal: No possible last move
4KN1k/3p3b/1rpn1N2/3rn1B1/QN1B1QB1/1bqR2PB/1p2pbqb/4R3 w - - 0 1 illegal: No proof kernel
3Q3r/2np1N2/P2b1RQ1/1r1nQ2Q/ppK3B1/1q3rqB/RBb1pk1N/2r5 w - - 0 1 illegal: No proof kernel
qb4Nk/NBp5/2P4B/p1bR1N2/4pprq/7n/4Q1nr/RqQqQ1KQ w - - 0 1 legal: proof: e4 g5 a4 d5 f4 gxf4 g4 dxe4 g5 b5 h3 Bg4 hxg4 bxa4 Kf2 e5 c4 f5 b4 Kf7 d4 Kg7 b5 a5 b6 h5 b7 a3 g6 f3 d5 a2 c5 e3+ Ke1 e4 g5 e2 Kf2 h4 d6 h3 c6 h2 d7 Na6 b8Q Ne7 Qe1 Nc5 Na3 Nd5 Qb1 Nf4 Nb5 Ng2 Na7 Rh5 Bf4 Kh8 Qbc1 Qb8 d8Q Nd3+ Kg3 f2 Nf3 Rh4 Nd4 Rg4+ Kh3 Qc8 Qd7 Bc5 g7+ Kh7 g8N+ Kh8 g6 Qe8 Qed2 e1Q Qe2 Qd1 Bh6 f4 Nf5 Rb8 Qd8 Rb2 Qh4 Qa8 Qe1 Rd2 Be2 f1Q Rg1 Nb2 Ba6 Nd3 Bb7 Rb2 Qe2 Rc2 Qg3 h1Q+ Qh2 Qf2 Rf1 Qhg1 Qh1 Qfe1 Rf3 Qgf1 Kh2 Qh4+ Rh3 Nf2 Qe1 Qb5 Kg1 Qb1 Rd3 Re2 Nc8 Ba7 Rd5 Bb8 Na7 Re3 Qc2 Rh3 Qd2 Rh2 Qe2 Qbb3 Rb1 a1B g7+ Kh7 Rc1 Bd4 Rb1 Bc5 Ra1 Kg6 Nge7+ Kf6 g8Q Qbb1 Qd8 Kf7 Ng8 Kg6 Qg5+ Kh7 Qh5 Kh8 Qb2+ Rg7 Qc1 Rg5 Qf3 Rg4 Qe2 Nh3+
4r1q1/rp4kB/rQ1R2n1/n1p1NQ1R/2pPK1b1/2b5/Nqr2B1p/QQ3N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 c5 a4 e5 g4 h5 f4 h3 d4 b3 g5 e4 f6 h2 f5 h4 g6+ Ke8 f7+ Ke7 a5 Kf6 a6 b2 a7 h3 g7 Nh6 g8Q Qb6 Nd2 b1R Ra6 Rb2 Ne2 Nc6 Nc3 Rc2 Bd3 Qb2 Na2 Ng4+ Kf4 e3 Ke4 e2 Nf1 e1R+ Be3 Ree2 Qb1 Bh6 f8N Ne5 Qe6+ Kg7 Ng6 Na5 Rd6 Rg2 Bg1 Re8 Bf2 Bd2 f6+ Kh6 f7 Bc3 Qe7 Kg7 Qc7 Bg4 Qb6 Rg3 Kd5 Rf3 Ke4 Rf6 f8Q+ Kh7 Rg1 h1Q+ Rg2 Qg1 Rh2 Rfe6 Qf5 Kg7 Rh1 Nec6+ Ne5 Ne7 Rh2 Ng6 Rh1 Rad8 a8Q Qg3 Qaa6 Ra8 Qa1 Ra7 Qab5 Qc1 Qbb1 Qb2 Rh2 Qg1 Rg2 h2 Rg3 Rea8 Rh3 Ree8 Rh6 Ra6 Rh5 R8a7 Bh4 Nf4 Qh7+ Kf8 Bf2 Bf3+ Ke3 Qg8 Bf5 Bg4 Ke4 Nd5 Qd7 Ne7 Bh7 Kg7 Qf5 Ng6
3K2N1/Qpbp4/n2R3N/1nr1N1B1/p2R1QB1/1nkb1RpP/1q1n2N1/5qr1 w - - 0 1 illegal: No proof kernel forced: wxLB
q5R1/k2p4/bN1K1p1B/1R2Br1N/Q1p2PQn/2n1R1rR/B1p1r1q1/1q4n1 w - - 0 1 legal: proof: b4 g5 d4 e5 c4 exd4 h4 b5 a3 bxc4 b5 Bb4+ axb4 gxh4 Kd2 a5 g4 c5 f4 h5 e4 f6 e5 h3 b6 d3 Kc3 h4 g5 h2 b5 h3 e6 a4 g6 a3 e7 a2 g7 d2 b7 Ra3+ Qb3 Nc6 b8Q Rh5 b6 Ne5 b7 Nh6 Ne2 Nf5 Ng3 Nh4 Qa7 Rf5 b8B Qb6 Nh5 Nef3 Be5 Ng1 Qa4 Ba6 Bg2 Qb8 Bd5 Qa8 Bg8 d1R Be3 Re1 Nd2 Re2 Rb1 a1Q+ Rb2 Qb1 Bf2 Ra1 Qd1 Ra2 Bfd4 Rg2 Qg4 Rg3+ Be3 Qg2 Rb5 Qa8 Nb3 Re2 Bd5 Qe4 Nd2 Qg2 Kb2 c3+ Ka3 c2 Nc4 Qa7 Nb6 Qa8 Ba2 c4 Kb4 Ngf3 Rf1 h1Q Kc5 h2 Ra1 Qb1 Kd6 h1N Bc5 Nf2 Bb4 Ng1 g8R+ Kf7 e8R Nd1 Rh8 Nc3 Reg8 Qb3 Re1 Qb1 Kc7 Ke6 Bf8 Ne4 Bh6 Nc3 Rf1 Ke7 Rf3 Ke6 Re3 Ke7 Bf8+ Ke8 Kd6 Kd8 Nd5 Kc8 Nb6+ Kb8 Bh6+ Kb7 Bg5 Ng6 Ng7 Ka7 Rh3 Qc8 Bh6 Nh4 Nh5 Qca8
R2n1b2/ppbK1Np1/1r1qQp2/k6B/bR6/P3nR2/Bn3BqN/Qq2B3 w - - 0 1 illegal: No possible last move
1kN1Rr2/pb1Q2q1/2pb1b2/1n5p/pb2BN2/4BNq1/2N1nRbP/Q1K2R2 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 f5 Qb3 f3 Qa3 f4 Qb3 Na6 Qd1 Rb8 Nh3 Rb5 Ng1 Rf5 gxf5 Be7 Nc3 Bc5 Nb1 Bf8 b4 Kd7 d4 g5 Kd2 h5 e4 f2 e5 g4 f6 c6 d5 Kc7 e6 f3 b5 g3 b6+ Kb8 e7 g2 e8R Qe7 b7 Qg7 f7 Bd6 f8N Nh6 Ng6 Rf8 Nf4 Nc7 Na3 Nf5 Nc2 Ng3 Ra2 Nb5 Bd3 f1B Be4 f2 Nf3 g1B Qe1 c3+ Kd1 Nf5 Be3 Ng3 Kc1 Bg2 Qd1 Bb4 d6 f1Q d7 Qf2 d8Q Qe1 Qd7 Ne2+ Kb1 Bf2 Rf1 Bh4 Qc1 Qf2 Qb2 Qfg3 Qa1 Ned4 Kc1 Bf6 Na3 Bd6 Raf2 c2 Qh3 Kc7 b8N Bb7 Nd7 Bb4 Qf5 Bd6 Nb6 Ne2+ Kd2 c1B+ Kc2 Nbc3 Nc8 Nb5 Qd7+ Kb8 Kd1 Bcb2 Nc2 Bba3 Kd2 Bab4+ Kd1 Ned4 Kc1 Ne2+
2q1Bk2/Kp4qq/p2pnrp1/NnQr4/5R2/2N1RQb1/1P1NR1qN/q3B3 w - - 0 1 illegal: No proof kernel
r1QQ1N2/N1nB1rk1/2qn1p2/1nRp1Pq1/N5Qr/R1Q1p3/2K3p1/B2r1b2 w - - 0 1 legal: proof: e4 d5 b4 a5 g4 axb4 d4 h5 e5 hxg4 Bg2 e6 Bf1 Bd6 exd6 c5 Qe2 cxd4 Qd2 Qh4 Qd1 Qd8 Kd2 Kf8 h4 g5 c4 b5 a4 g3 f4 d3 c5 g4 c6 b3 c7 b2 f5 b4 d7 b3 h5 e5 h6 g2 a5 f6 a6 g3 h7 e4 a7 Nh6 Nc3 b1R Qg4 b2 Nf3 g1Q Na4 Ba6 c8Q Qe8 d8Q Nf7 Ne5 Nd6 Ra3 e3+ Kd1 d2 Kc2 d1N Nc6 Nc3 Bb5 Ra1 Qcc7 b1R Bb2 Rd1 Qdc8 Rab1 Ba1 Rb4 Qa5 Rg8 h8N Rg7 Rh4 Rf7 Ng6+ Kg7 Rh2 Qd7 Rd2 Re4 Rd4 Qc7 Rc4 Qb7 Rc5 Rc4 Qh3 Rh4 Qg4 Qb6 Be2 Ncb5 Qc3 g2 Bc4 Qh2 Bd3 Qf4 Nf8+ Qg5 Be2 Bb7 Bc4 Na6 Be2 Rb8 a8Q Nac7 Na7 Ba6 Qd8 Qc6 Qb7 Nce8 Qbc8 Ra8 Bc4 Nbc7 Bb3 Be2 Bc4 Bf1 Ba6 Ncb5 Bb7 Qb6 Bc6 Nec7 Bd7 Qc6
6RN/3pq3/K2r3N/1npq1Nr1/p1p2k1N/PB1Bqqr1/QB1Rb2Q/b7 w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h3 g5 Qd2 g3 Qd3 Nc6 Qd1 Ne5 h4 g4 Rh3 Nf7 Rh1 Ng5 hxg5 Ba3 Rh2 Bd6 Rh1 Bf8 Kd2 Kf7 b4 Ke6 e4 Ke5 f4+ Ke6 f5+ Ke5 a3 h5 b5 d3 Kc3 a6 f6 h4 f7 g2 g6 d2 g7 h3 b6 h2 b7 g3 b8Q Qh4 Bd3 Ra7 Qdb3 d1R Nd2 Nf6 g8N Bg7 Kb4 Kf4 Ka5 Ne8 f8N Nd6 e5 Qe7 e6 Rh3 Ra2 Ba1 Bb2 Nb5 Ngf3 g1Q Nd4 g2 N2f3 Qe3 Nh4 g1Q Nh6 Qgg5 Ndf5 Rg3 Rg1 Bb7 Rg2 Bf3 Rd2 Qgf6 Qc2 Be2 Nfg6+ Kg5 Nh8 Kf4 Qg8 Ra8 Qf7 Rag8 Qh7 R8g5 Qb1 Q7c5 e7 Qd5 e8B Qfe7 Bg6 h1Q Bc2 c6 Bb3 Q3e6 Kb6 a5 Ka6 a4 Rd4+ Qee4 Ne3 Bh5 N6f7 Qdd6 Bc3 Rc5 Rg2 Qee6 Nf3 Qee7 Qa2 Rh3 Bb2 Rd5 Rg5 Rg3 Qh6 Bg4 Qh2 Qg2 Nh4 Be2 Rd3 Qgf3 Nh6 Rf5 Bh7 Rd2 Rg8 Rg5 Rd5 Q4e5 Bb1 Rd4 Nef5 Qee3 Be4 Qde6 Rc5 Rd6 Rd5 Q6f7 Rd2 Qd5 Bd3 c5+
3k2r1/Np6/1bbnRNr1/2p1Q3/1b1Rp1r1/1qpRQ3/q2NPr2/NBBK4 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 h3 g5 Bg2 g3 Bf1 Nd7 h4 g4 Qb3 Ndf6 Qc2 Ne4 Qd1 Ng5 hxg5 Ra6 Nh3 Ra7 Ng1 Ra8 d4 h5 a4 e5 f4 c5 g6 c3 f5 g2 a5 h4 a6 b3 f6 g3 a7 b2 g7 h3 f7+ Kd7 d5 h2 d6 Nf6 g8N Qa5 Qd3 Qa2 Kd1 Ne8 Na3 b1Q Nf6+ Kd8 d7 Rg8 Nf3 g1B Nc2 g2 Nd2 Be7 f8R Rg4 Qe3 Qbb3 Rh8 Rb8 Rh6 Nd6 a8Q Bf2 Qa4 g1R Qae4 Bh4 Q4d4 R1g3 Bh3 e4 Qe5 Rg6 Be6 R3g4 Bc4 Ra8 Bd3 Bg5 Rf1 h1R Rb1 Rh2 Rf3 Rf2 Rfh3 Kc7 d8N Bd7 Nc6 Rag8 Na7 Kd8 Rg3 Bc6 Ra1 Qab1 Ra4 Q1a2 Rd4 Kc7 Ke1 Bd8 Na1 Bh4 Bb1 Bg5 Nh5 Kd7 Rh3 Ba5 Nf6+ Kd8 Rg3 Qb5 Kd1 Bb4 Q3f4 Qbc4 Rgd3 Bh4 Qe3 Qd5 Rh7 Bg5 Re7 Qdb3+ Bc2 Bh4 Re6 Kc7 Nh7 Bd8 Nf6 Kb8 Q5f4 Bb6 Qh2 Kc7 Qe5 Qba3 Bb1 Kd8 Nab3 Q3b2 Na1 Qbb3+
BNbB2r1/2pp4/Q1br1N2/4Bq2/3PRpBq/Q2n4/q2b1p2/R1q1NK1k w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Na3 b5 Nb1 b3 c4 b4 Rh3 Nc6 Rh2 Nd4 Rh1 Nb5 cxb5 Ra3 Rh2 Ra6 Rh1 Ra8 g4 Ke7 a4 Ke6 e4 Ke5 b6 f5 b7 h5 b8B h3 a5 f3 g5 Kf4 e5 Kg3 e6 h2 e7 b2 e8N b3 g6 h4 a6 h3 g7 Rh6 Ne2+ Kh4 Nf6 Bd6 Nd4 Kg3 Be2 Kg2 Ba7 Ne7 g8Q+ Ng6 Qc4 Ne5 Nc6 Bb4 Na3 b1Q Nc2 b2 Bd4 Qa2 a7 b1Q Qa6 f4 Bcb2 Qf8 Nb8 Qc1 Ba3 Bc3 Be7 Ba5 Rf1 h1B Bd8 Kh2 Rg1 f2+ Kf1 Nd3 Be5 Bc6 Bg4 Bc3 Rg3 Kh1 Ne1 h2 Qda4 Ba5 Qa3 Bb4 Ne8 Qf5 Re3 Rd6 Re2 Nb2 d4 Bd2 Re4 Nd3 Ke2 Kg1 Nf6 h1Q Rb1 Qh2 Ra1 Kh1 Kf1 Qh4 Be7 Bb5 Nc6 Rb8 a8B Bb7 Q6a5 Re8 Qa6 Bc8 Nb8 Rg8 Bd8 Bc6
1n2B3/3nr1nn/n3p3/2kBPp2/1N1b4/pR1rpb1K/QB1NR1r1/1Q2NN2 w - - 0 1 illegal: No proof kernel
8/1QNr1bnb/p2Bbr1B/1Q6/2Br2pp/2RRpKP1/RN1rBn2/2b4k w - - 0 1 illegal: No possible last move, all moves rejected
1r6/p2p1Qr1/b1n2rNB/Bn3k1B/RRB2N1b/K1Q5/2pPpbr1/b3R3 w - - 0 1 legal: proof: b4 f5 c4 g5 e4 fxe4 a4 b5 h4 bxa4 c5 c6 b5 Qb6 cxb6 gxh4 g4 Kf7 f4 Kg6 g5 e5 b7 h5 b6 h3 Ne2 e3 Rg1 a3 Bg2 a2 Bb2 c5 Bf3 h2 Qc2+ e4 Kd1 h1R Kc1 c4 Qc3 h4 Bh5+ Kf5 g6 h3 g7 h2 Na3 Rh6 Re1 Na6 b8Q Nc7 b7 Ne7 g8B Nb5 Qc7 Rg6 b8R Rhg1 Qd6 Nc6 Qe7 h1R Qf7+ Rf6 Rb7 Nc7 Rb4 Rg7 Qd5+ Ne5 Qcd4 c3 Rb6 c2 Bc3 Bc5 Kb2 Ba6 Nc4 Rb8 Ba5 Rhg1 Rb4 R1g2 Bgf7 Rd6 Qc3 R2g4 Kb3 Nb5 Ka4 Kf6 f5 Na3 Be6 Nb5 Nf4 e2 Bg8 Kg5 f6 Kf5 f7 Bf2 Kb3 Rf6 f8B Rgf7 Bg7 Rg2 Bh6 Rh7 Rab1 Rhg7 Ra4 a1B Rb2 Nd4+ Ka3 Bh4 Rbb4 Bf2 Qf7 Nec6 Qe7 Bh4 Ne5 Nb5+ Kb3 Bf2 Bc4 Bh4 Neg6 Bf2 Rg1 Bh4 Qf7 e1B Ka2 Bef2 Re1 e3 Kb3 e2 Ka2 Nbd4 Ka3 Nb5+
1B1R1Q1n/b1R1Q3/1p2np1p/2B2B2/k4Bpb/b2N4/2R1pn1P/KN1rq2r w - - 0 1 illegal: No proof kernel
2nbq3/3k1pr1/Nr1N2R1/N2p4/1Q1Bpp1B/1RQ1P1n1/pBn1b3/2Nr2K1 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 d4 cxd4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf1 e5 c4 a5 b4 d5 h4 g3 b6 e4 c5 d3 g6 a4 e3 d2 b7 a3 g7 a2 h5 Rh6 c6 Ra5 b5 Ke7 c7 Rc6 b6 Kd7 h6 Ra8 h7 Re6 h8B Bc5 Na3 Qg5 Rb1 Rf6 Nc4 Qh4 Ne2 g2+ Kg1 Ba3 Qa4+ Ke7 Na5 Bb2 Qb4+ Kd7 Rh2 Qh7 Rh6 Nc6 b8B Nge7 g8Q Ba6 c8N Nd4 b7 Rb6 Qg7 Nc2 Rg6 Qg8 Bd6 Bf6 Bb2 Qe8 Nc1 Be2 Bd4 Bh4 Rb3 Bf6 B6e5 Bg5 Nd6 Nc8 Bb2 Bd8 Bf6 Raa6 Bh4 d1R+ Kf2 g1N Qgc3 Bf1 B8f6 Ne2 Bd4 Ng3 Kg1 Be2+ Kg2 Rc6 Kh2 Rab6 b8N+ Kc7 Na6+ Kd7 Nb5 Re6 Nd6 Re5 Kg2 Rh5 Kf2 Rh7 Kg2 Rg7 Kf2 Rd3 Kg1 Rd1+
1KN3r1/N1Rp3Q/pp2p1BR/1rN1n1b1/2n3Qp/qP1B1B2/6br/B3k2n w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qxa5+ Ke2 Qa6+ Ke1 Qa2 Kd2 Kf7 Kd3 Kf6 Ke4 h5 g4 b6 c4 a6 Kd5 d3 f4 h3 b3 h2 c5 d2 c6 Ra7 g5+ Kg7 g6 Kf6 c7 Qa4 g7 Qa3 Bb2+ Kf7 f6 Kg6 f7 Kf5 Nh3 Qb4 Na3 Nh6 g8B Bg7 f8N Nc6 Nf2 Ng4 Rc1 Ra8 Ne6 Bb7 c8B Qa5+ Nc5 e6+ Kd6 Nh6 Kc7 Ne5 Bd3+ Be4 Ba1 Nf3 Nb5 Ne5 Na7 Qa3 Bb7 Nhg4 Bf7 Nc4 Qf3 Nge5 Qg4+ Kf6 f5 d1R Bg6 Rag8 Bc6 Bg2 Bf3 Bh6 Rc3 Bg5 Nfe4+ Kg7 f6+ Kh6 f7 h4 Rg1 h1N Nd6 Rd2 Ndc8 Rh7 f8Q+ Rhg7 Qd8 Rf7 Nc6 Rf5 N6a7 Be3 Rf1 Bf4 Bfe4 Nd6 Qe7 Bf3 Be8 Nc6 Nb7 Rh2 Bf7 Rb5 Rcc1 Ne5 Kb8 Bg2 Rc7 Ndc4 Nc5 Bd2 Rf5 Bf4 Bf3 Be3 Qd4 Bd2 Rf6+ Kg5 Be8 Bc1 Qh7 Be3 Bfe4 Kg4 Bf3+ Kg3 Qg4+ Kf2 Rh6 Bg5 Beg6 Ke1
K2B2bQ/RBpNqQpn/1pQpb2R/5n2/4rnr1/1p1P2kr/1BQ5/N7 w - - 0 1 illegal: No extended proof kernel
1nQN2R1/B1ppP2R/1r3rK1/2RB1p2/2rb1Q1N/2pq1Q2/n5p1/R2bk2b w - - 0 1 illegal: No possible last move, all moves rejected
r1k2r2/1p3Q1R/p1NP4/p2N1rbR/1p4R1/B1pb1nK1/Q1Bn3n/NR4q1 w - - 0 1 illegal: Other
5R1n/p2nbPr1/1RN1r3/3b1p1b/2B1Q1pp/BKQ1Q2N/2pq3k/n4Q1N w - - 0 1 illegal: No possible last move, all moves rejected
kn2qB2/N5R1/1n2KB2/4p2B/1r1PbR2/Q1RrpppR/2q1Np2/1Qb4n w - - 0 1 illegal: No proof kernel
Q2Q2B1/2K2Qb1/RRq1qNbB/2nNp1r1/1p3prb/5R1p/4P1pk/2Q3n1 w - - 0 1 illegal: No proof kernel
rRb3B1/2r2RNp/4Pppn/b1nnKQ2/4R2p/2R1N3/3Qp3/kBq1B2q w - - 0 1 illegal: Other
1bqkq2Q/2p1bb2/5QNp/2P1n1R1/KB1p2r1/R1p1prn1/1RRQ4/2B3N1 w - - 0 1 illegal: No proof kernel
1BB2b1Q/1Pp5/rp1nRKpB/bqn1p1Q1/N1k4q/1p4r1/5N2/1QB2bR1 w - - 0 1 illegal: No proof kernel
2rnN1bK/2NN1B2/RQp2n2/2Pp1q2/2p4R/rp3pN1/3BQrR1/1k4br w - - 0 1 illegal: No proof kernel
Q1B5/1b1pkpnp/1nBb3r/KR1BqR2/1p1bN1q1/pPBq3R/N3Q3/8 w - - 0 1 illegal: No proof kernel
K1Q4Q/1rBN4/1n1Q1pN1/r1rpQ2q/pp2rnk1/1P1B4/R1p4B/brR5 w - - 0 1 illegal: No possible last move
Q7/2N1bk1b/QKB1b1pR/bBNqppp1/4R3/BNp1PBn1/4r1r1/6b1 w - - 0 1 illegal: No proof kernel
BB3r2/2qK1kn1/2Q1pN1n/R2pr1pn/r2N3R/p4p1b/3nPQR1/2N4N w - - 0 1 legal: proof: f4 b5 g4 c5 a4 bxa4 d4 cxd4 f5 h5 f6 hxg4 Nc3 e6 Nb1 Be7 Ra2 Qc7 Nf3 Kd8 Ra1 Qb6 fxe7+ Kc7 Ng1 Kc6 Ra2 Qc7 Ra1 Qd8 Kd2 Kd5 Kd3 a5 e8N f5 h4 g5 b4 g3 c4+ Ke5 h5 f4 h6 a3 c5 g2 Kc4 d3 Kb5 d6 c6 d2 c7 a4 h7 a2 Nc3 Qe7 Rh2 Qd8 Nh3 g1N Nf2 Nh6 Bg2 Rf8 h8R Nf3 Nh1 Nd7 Kc6 Ra5 b5 Nf6 b6 Nh5 Qg1 d1N b7 Nd2 b8N Ne3 Qf2 Nef5 Nf6 Nfg7 Bb2 Ba6 c8Q Qb6+ Kd7 Bd3 Ba8 f3 Rg2 Bf5 Qc6 Bh3 Bc1 Kf5 Ba3 Kg6 Bc5 Qb1 Ba7 Re5 Rh7 d5 Rh8 Ng4 Rh7 Qb6 Rh8 Ng3 Rh4 N3h5 Qb7 Rf5 Nc6 Re5 Bb8 Nh6 Nd4 Kf7 Qc6 a3 Rc1 a1R Na2 Rb1 Rc5 Rb4 Ra5 Ra4 Nc1 Qc7+
N1Q2r1k/3pr1p1/5qPp/b2n3N/5pBR/K4R2/QRrn1B1p/2B1r1Rq w - - 0 1 illegal: No proof kernel
4b2b/1N2p2B/bQp1R3/2qnBpBb/1pk3np/4rPqB/2K1R2N/4Q1Q1 w - - 0 1 legal: proof: c4 b5 e4 a5 d4 g5 h4 gxh4 d5 Ra6 b4 axb4 c5 Rd6 c6 dxc6 e5 c5 exd6 c4 Kd2 Kd7 g4 f5 a4 h5 a5 c3+ Kc2 h3 g5 h2 a6 c6 g6 h4 g7 Nf6 g8B Rh6 a7 Qc7 a8Q Ng4 Bh7 Ba6 Na3 Bg7 Qa7 Re6 Qe1 Bh8 Nf3 Re3 Rg1 h1B Nc4 Bg2 Nh2 Bf3 Ra2 Be2 Bh3 b3+ Kb1 b2 Na5 b4 Nb7 Bf3 Kc2 b1B+ Kb3 Bh1 Re2 Ba2+ Kc2 Bf3 Rg2 Nh6 Rg1 Bh5 Rg6 Ng4 f3 B2c4 Re6 Ba2 Kd1 c2+ Kd2 Ke8 d7+ Kf7 d8Q Nd7 d6 Ndf6 d7 Nd5 Qdb8 Qg3 d8B Bb3 Bc7 Ba2 Re4 Bb3 Be5 Ke6 Qd8 Nb6 Qf1 Rc3 Bd6+ Kd5 Qe1 Ba2 Re5+ Kd4 R5e3 Baf7 Re6 Be8 Qc7 Rb3 Bf4 Ra3 Bg5 Rb3 Bb2+ Rc3 Kc1 Kd3 Qd8+ Nd5 Qag1 Rb3 Be5 Rc3 Kb2 c1Q+ Ka2 Rb3 Qdb6 Qc5 Ka1 Rc3 Kb2 Kc4 Kb1 Ra3 Kc2 Re3
nQNn4/2rN2Qp/Rp2r1Q1/p1B2p1B/5Rp1/1rb1K1PQ/1nR1n3/k4b2 w - - 0 1 illegal: No proof kernel
2R2bR1/5p2/3BrnN1/1Qp3NB/2rQ1KbB/2r2pp1/B1Qp2Pk/2b3nr w - - 0 1 illegal: No proof kernel
Q5n1/4qr1p/1B1b4/2pn1QK1/3p1rP1/RBpb1RQp/p1NN1QB1/2k3n1 w - - 0 1 illegal: No proof kernel
R3K1R1/r1bpQp2/2QRB2k/p2pn3/5Nq1/1Q4p1/p2B1bP1/1bR2Nnr w - - 0 1 illegal: No proof kernel
rRKbq3/1pBR4/kNQ5/B3p2R/1Pn2ppp/NB1r3B/1pQ4n/n1b5 w - - 0 1 illegal: No proof kernel
NR1B2q1/p2BB2K/n6Q/brp1pn1R/b1NQ3p/1Bp4r/2p1P1Nk/r7 w - - 0 1 illegal: No proof kernel
1bR2B2/pPK4Q/1Q1Rpn1q/8/B1B3k1/n2pB1NN/p1ppnrb1/1N3r2 w - - 0 1 illegal: No possible last move
2k2KQ1/R3n2b/1qpp2pR/p2q3N/1b1n3B/1prr1P2/p5NQ/1N1R1BR1 w - - 0 1 illegal: Other
NK1RBQ2/p5p1/pbp4p/1R2R2n/B1r1b3/3p2P1/1bqr3k/BQBqN3 w - - 0 1 illegal: No proof kernel
3bBR2/1R4r1/1QN3b1/b1QN1npN/pQ1B1q2/KN2p2p/p4bpP/3k3n w - - 0 1 legal: proof: c4 f5 e4 d5 g4 fxg4 d4 dxc4 d5 a5 a4 Ra6 e5 Rd6 exd6 b5 Qc2 bxa4 Qb3 Bf5 Qd1 Bc8 Kd2 Kd7 Kc3 e5 b4 g5 Kb2 h5 f4 c5 f5 g3 b5 h4 f6 a3+ Ka2 a4 b6 c3 b7 c4 f7 c2 Nc3 g2 Nge2 h3 Nb1 c3 Bd2 c1B Nd4 c2 Qe2 e4 Bc3 Na6 b8Q Rh7 Qb3 Bd2 Qe3 c1B Qb4 Rg7 Nb3 Be7 f8Q Nh6 Qeb6 Nf5 Bd4 Qc7 Nc3 Bd8 Rb1 Nc5 Ba6 e3 Rf1 Be1 Be2 Ba6 Bh5 Bd3 Bf7 Ne4 Be8+ Kc8 Qe7 Neg3 Rf2 Bcd2 Q4c5 Nh4 Rf8 Bg6 Qe4 Nhf5 Qf4 Bf6 d7+ Kd8 Qfd6 Bf2 Qbb4 Nh1 Qdb6 Nd6 Rb2 Ke7 d8N Qb8 Ne6 Bde1 Ka1 a2 Nf4 Qc7 Nh5 Qb8 Bf7 Kd7 Rb1 Nf5 Kb2 Qf4 d6 Bd8 Be8+ Ke6 Nd5 Bc3+ Ka3 Bd2 Ba1 Bde1 Rb2 Ke5 d7 Bc3 Q4b5 Ke4 Qbb4+ Kd3 Rb1 Be7 d8N Ke2 Nc6 Bd8 Bb2 Bce1 Bd4 Bd2 Rb2 Kd1 Q4a5 Nd6 Qba6 Bf6 Nc1 Be7 Rb7 Nf5 Q6b6 Bde1 Nb3 Bd8 Qab5 Ba5 Qbc4 Bf7 Q4b4 Bg6
1b1R4/Qp1bkBB1/1Qrp3p/R1nn2n1/2RP3p/1nRNK3/p6p/4N1Qr w - - 0 1 illegal: No proof kernel
3Rr1Q1/1pqR4/1q1R2R1/Rr1n2rk/1q1R2NB/3q1qK1/p4P2/1N1Bq3 w - - 0 1 illegal: No possible last move, all moves rejected
1B1n3N/K1B2pB1/BP3p2/1Rn1pNkq/3Q1R2/q1b1n2n/2B1p2b/3B4 w - - 0 1 legal: proof: b4 d5 c4 a6 e4 dxe4 f4 c6 f5 b5 a4 bxa4 f6 gxf6 b5 Bb7 b6 Bc8 h4 h5 g4 a5 g5 Ra6 g6 Qd6 Qg4 Qd8 g7 Rh6 Qh3 Rg6 Qe6 Rg5 hxg5 Ra7 Qxc8 Rd7 Bg2 Rd5 Bf1 Rb5 cxb5 Nh6 Ra2 Ng8 Ra3 Nh6 Ra1 Ng8 b7 e5 Ke2 Ke7 d4 h4 g6 c5 b6 e3 Kd3 a3 Kc4 a4 Kb5 h3 d5 c4 d6+ Ke8 d7+ Ke7 Nc3 a2 Nge2 h2 Ng3 a3 Qc5+ Ke6 Nd5 c3 Ne7 c2 Rb1 Nh6 g8B a1Q g7 a2 Bh7 Nc6 Ka6 Nf5 g8B Bh6 b8B Bf4 Ng6 Qc3 Bb5 a1B Rf1 h1N Nh8 Nf2 Bd2 Qe7 d8B c1N Qd4 e2 Bdc7 Nd8 Ka7 Ncd3 Ba6 Qea3 Rb5 Nh3 Bg6 Qcb3 B8h7 Nc5 Rf2 Qf3 Bb4 Ncb7 Bf8 Bc3 Bg7 Ne3 Bb1 Qh5 Ba2+ Nd5 Bb3 Nc5 Bd1 Ne3 Bb1 Bb4 Bbc2 Bc3 Ne4 Kf5 Ng3+ Kg5 Nf5 Bg3 Rf4 Bh2
rkNbbb1N/N5Qq/6q1/n2B4/4P3/r3NNnq/4N1qq/K1Rq2BR w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 g4 Kd7 d4 h5 Kd2 c5 Kc2 Kc7 Kb2 f5 g5 f3 g6 f2 g7 c4 e3 b3 Na3 f4 Bd2 c3+ Kb1 f3 Nc2 b2 Bg2 f1Q Ne2 Nf6 g8N h3 Ne7 Nc6 d6+ Kb8 b6 h2 d5 h4 b7 f2 d7 h3 d6 Na5 Bd5 Qg2 Qg1 f1Q+ Ka2 Qf4 Rc1 Nh5 e4 Qb6 d8N Bd7 Kb1 Be8 d7 Ng3 Nf7 Qg6 Ne3 c2+ Ka2 Qh4 d8N Qhh7 Ng5 Rg8 Ndf7 b1Q+ Ka3 Rg7 Nh8 Rf7 Bb4 Rf3 Bc5 Qa1+ Ba2 Qd4 Nc8 Qd2 Kb2 Qd1 Nd5 Ra3 Ne3 Qh4 Nf3 Qhh7 Rb1 c1B+ Ka1 Bd2 Rc1 Bb4 Bd4 Bbe7 Bb6 Bd8 Bc5 Kc7 b8N Kb7 Nc6 Kc7 Qf2 Kb7 N6a7 Kb8 Rf1 h1Q Qg1 h2 Bd4 Rd3 Bd5 Qgh3 Bc5 Q1g2 Bd4 h1Q Bb6 Qf2 Qg2 Q1h2 Rh1 Nf1 Qg5 Ng3 Qe7 Qfg2 Qg7 Bfe7 Nf5 Rb3 Bg1 Bf8 Ne3 Ra3+
Rq1b4/B4B2/nP4Nn/1kb3RN/1rr3qR/b3b1Q1/2R3b1/2RKR1bn w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 h5 a4 e5 axb5 exf4 g4 hxg4 e3 fxe3 h4 Kd7 d4 f5 b4 c5 b6 g5 b5 a5 b7 e2 d6 f4 b6 Kc6 d7 f3 h5 c4 d5+ Kb5 d6 f2+ Kd2 e1Q+ Kc2 g3 h6 a4 h7 a3 Rh3 a2 Bf4 g4 Qf3 g2 Nd2 g3 Ne2 g1B Rh4 c3 Nc4 g2 Ng3 Qe4+ Kd1 Nh6 Rc1 a1B Nh5 Na6 b8R Bb7 Qg3 Bd5 Bd3 f1N Rc8 Bc5 Ne5+ Qc4 Rc2 g1B Bg6 Bg2 Bf7 Rg8 h8R Rg4 Rc7 Qb8 d8R Bb2 d7 Bba3 Rh1 Bfe7 Rdg8 Bd8 Ng6 Qe6 Bd6 Rb4 Rg7 Ra7 Rh4 Ra8 Re8 Qg4+ Ree2 Ra7 Rc6 Rc7 Rg8 Bf6 d8R Rc8 Rde8 Bd8 Re5 Rc7 Rg5 Rc8 Qf3 Ng3 Re1 Nh1 Bc7 Qa8 Bb8 Rc7 Ba7 Qb8 Rc1 c2+ Kd2 Re7 Qg3 Ree4 Re8 Rec4 Rc8 Qb7 Ra8 Qb8 R8e2 Bf3 Rb1 c1B+ Kd1 Bd2 Ra1 Bg2 Rc1 Qe6 Rf2 Be3 Rfc2 Qg4+
5nN1/1n2P1K1/1r3rn1/rN1N4/2k1rR1N/bq1R4/b2QbN1N/2bBB1n1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 g4 f3 b6 h3 d6 f4 d7 h4 g5 b3 g6 f2 g7 b2 b7 f3 Na3 b1R Be2 f1R Nb5 h2 Ra4 f2 Nh3 Ne7 Kf6 Ra5 g8N Ng6+ Kf7 c6 e5 Qb6 d8N Nd7 b8N Rb3 Rg1 h1N e6 Ng3 Rf4 Nf5 d4+ Kd5 Qe1 c5 Qd2 c4 Nbc6 c3 Ne5 c2 Ng4 Ba3 e7 Ndf8 Rg3 Nd6+ Kg7 Nb7 Rd3 Kc4 Nf7 Be6 Nfh6 Rb4 Bb2 c1B Nf5 Rh6 Bd1 Re1 d5+ Re4 d6 f1B d7 Be2 Nhf2 h3 d8N h2 Ba1 h1N Nc6 Ng3 Nh2 Qe3 Bc3 Qf3 Nc7 Rb6 Na7 Qe3 Nab5 Bf7 Rd6 Be6 Bb4 Qb3 Rd3 Qc2 Nfd4 Nh4 Nhg4 Rf6 Rff3 Bf1 Qe2 Nhg6 Be1 Kc5 Qd2 Ne2 Rf4 Ng1 Nf3 Ba2 Nh4 Be2 Nd5 Qb3 Nh2 Kc4
3Q1n2/1RP2n1q/5R2/p1q4n/R1R1r1n1/B4rr1/NRKnbkq1/NR1B4 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 e4 Kd6 c4 Ke5 b4 Kf4 e5 d5 g6 a5 g7 f5 c5 h5 c6 d3 c7 d4 b6 g2 b5 Kg3 b7 h4 b6 h3 e6 f4 e7 f3 e8R f2 Nf3 g1R Qc2 h2 Bg2 f1N+ Kd1 d2 Qc5 Qd7 Qb4 Kf2 Na3 g3 Re7 Rh3 Nc4 Nh6 g8R Nf7 Kc2 d1N Ne1 Nd2 Bf3 g2 Rg6 Qg4 Ne3 Nd7 b8R Nf8 Rc6 Ba6 b7 Be2 Qd6 Qh4 Bh5 Rf3 Qd8 Qg3 Ba3 d3+ Kc1 Qd6 Nd5 Ne3 Re4 Qc5+ Nc3 Ng4 Rc4 Nf6 Bg4 Nh5 Na2 Ra6 Rg6 Re6 Rf6 Re4 Rb1 Nf1 Kb2 d2 Nc2 d1N+ Kc1 Nd2 Na1 Ne3+ Kb2 Nf5 Kc2 N5h6 Rb2 Re1 Rb4 g1Q Ra4 Qg2 Rg1 Rb1 Re1 Rb3 Rb1 h1Q Rb2 Rf5 Rb1 Rg3 Bf3 Bf1 Bd1 Rff3 Rc8 Ng4 b8R Nf4 R8b2 Be2 Rcb8 Qh7 R8b7 Nh5
R2q1qRR/3nP3/1B1K4/N7/1k2N1r1/n2QnR1B/Rq1p1b2/nbnRn3 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 d5 e4 h5 c4 f5 b3 f4 g6 d3 b6 d4 b7 h4 g7 d2 Be2 h3 Qf1 d1N Be3 g2 Ra4 f3 Ra1 f2 Bd3 g3 Bc1 a4 Na3 h2 Nf3 g1N Ra2 g2 Nd2 Ne7 g8R Kb4 c5 Rh4 c6 Ne2 c7 g1N Nac4 a3 Na5 Bf5 c8R Rg4 Rc3 Nd7+ Kd6 Nb2 e5 Nf3 e6 Ne1 Ne4 Nd5+ e7 Ne3 Bc4 d3 Be6 Bh6 Bd2 Nc1 b8R+ Nb6+ Bd7 Bg6 Qh3 f1Q Ra8 Qff8 Rf1 h1Q Rg1 Ned5 Be3 d2 Bf2 Bh7 Rf3 Be3 Qf1 Bg6 Qd3 Qh8 Rf1 Qc3 Bg1 Bf2 Rh8 Nc2 Rd1 Ne1 Rg8 Qde8 Bf5 Nd7 Rh8 Qd8 Rg8 Bh4 Bb6 Ne3 Be6 Bf2 Rh8 Rg5 Bh3 Nbc4+ Ke6 Kb5 b4 Qb2 Rg8 Ka4 b5 Rg4 Rh8 Kb4 Rg8 Nce5 Kd6 Bf5 Bc7 Bh7 b6 Bf5 b7 N5c4+ Kc6 Bg6 Bb6 Bh7 b8R Bf5 Ra1 a2 Rc8 Na3 Kd6 Ne2 Rac1 a1N R1c2 Nc1 Rh8 Qc3 Ra2 Bh7 Rc5 Qb2 Rg5 Bg8 Rg7 Bb3 Rg5 Bc2 Rgg8 Bb1
rn2Bqq1/k5Nb/3qnRQ1/1nq2r2/p3BPqn/B2R4/B1N2B2/K6B w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 b4 a5 h4 gxh4 Nh3 a4 Ng1 Bh6 Bd3 Bf4 Be2 Bc7 Bf1 Ba5 bxa5 Ra6 Ke2 Ra7 Ke1 Ra8 Kd2 e5 f4 h5 g4 d5 c4 Kd7 Kc2 Kc7 Kb2 Kb7 a6+ Ka7 g5 d3 g6 d2 c5 e3 c6 e2 c7 e1Q g7 h3 Nc3 h4 Qb3 d1N+ Kb1 h2 Nf3 d4 Ka2 h3 Ba3 e4 Ne2 d3 Nh4 d2 Qd5 e3 Qd6 Qf8 Qg6 Qf2 Nd4 e2 Nc2 e1N Nf5 Nd3 Bg2 Rh5 Be4 Nh6 g8B Q2c5 Ng7 Bf5 c8B Qfd6 Rc1 Nc3+ Ka1 d1Q Ba2 Qg4 Rhd1 h1Q Bd7 h2 Be8 Qhg2 Rd2 h1Q Rb1 Ne5 Rd3 Nhf7 Rbd1 Ng5 Rc1 Kb6 a7 Ne6 Rcd1 Nf3 Re1 Ka5 b6 Ka6 b7 Nb5 Red1 Nh4 Re1 Nc6 b8B Qhh2 Bc7 Nb8 Bb6 Qhg1 Rc1 Qe1 Rcd1 Qeb4 Re1 Qf8 Red1 Qcd6 Bf2 Qbc5 Re1 Qg1 Bh1 Q1g3 Re5 Be4 Rf5 Rg5 Rf6 Rd5 Qf7 Bh7 Qg6 Rf5 Qh6 Rd5 Nh5 Qgg8 Ng7 Rf5 Qg6 Qg4 Be4 Nc6 Bh1 Rc8 a8B Ka7 Bb7 Rd8 Qh6 Ra8 Qg6 Nb8 Bbd5 Qd7 Bde4 Qdd6
1q2NnrR/4QNK1/6PN/2NBN1Bp/b1r1b3/5R1n/1kp2bnn/4N1r1 w - - 0 1 illegal: No possible last move
6B1/1K2nrN1/2QqRBr1/1r1PB3/bkbq4/np2b2b/1pB1N3/B1B4R w - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 f5 cxd5 g5 exf5 gxh4 Nh3 c5 Qb3 c4 Ng1 cxb3 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 e5 f4 h5 g4 b5 g5 h3 d6 h4 d7 h2 g6 h3 f6 b2 f5 b3 d4+ Kb4 Kd5 e4 g7 e3 a5 e2 a6 e1Q a7 Qg3 f7 Qf6 d8B Rh7 Nc3 b1R Nge2 Nd7 Na4 Ne5 Nc5 Nc4 Ne6 Na3 Kc6 Bc5 f8B Rb8 Bd6 Ne7+ Kc7 Rb6 g8B Rf7 Be5 Qh8 Ng7 Rg6 a8Q Ba6 Rg1 h1B f6 h2 Qc6 Bg2 Rh1 Bh3 d5 Be3 Bg2 Qhh4 Kb8 Qd4 Be4 Bd7 Re1 h1B Bc2 Bg2 Ka8 Bgh3 Rh1 Rf8 f7 Rb2 Bf6 Be8 Bc7 Qd6 Bb8 Ka5 Ra2 b4 Ra1 Bc4 Kb7 Q6c5 Bbe5 Qd6 Qc8 Ba4 Qc6 Rc8 f8B Rd8 Ne6 Rc8 Bh6 Rf8 Ng7 Rf7 Ra2 Rb1 Bb2 Rc1 Ba1 b2 Bhf4 b3 Bh6 Kb4 Bhf4 Nb1 Ra3 Bab5 Ra6 Ba4 Be4 Rc3 Bc2 Na3 Rb6+ Bcb5 Ra6 Rc5 B4g5 Bc4 Bh6 Bf2 Bc1 Be3 Qc8 Qd8 Re6 Qd6 Qc6 Rb5+
K2N2q1/B1nnBr2/nR1N3p/2q5/Q1P1B2B/rq1R2bB/2k2p1B/2q1b3 w - - 0 1 legal: proof: d4 b5 h4 d5 f4 c5 a4 e5 axb5 exf4 e4 g5 Nd2 gxh4 Nb1 Be6 Bd3 cxd4 Bf1 d3 Bd2 d4 Bc1 Bd5 exd5 Bg7 Ra3 Bh6 Ra1 Bf8 Kd2 Kd7 b4 Kd6 c4 Ke5 g4 Ke4 d6 a5 d7 f5 b6 h3 b7 h2 b5 a4 g5 a3 g6 h6 g7 a2 b6 f3 Ba3 f4 Be7 f2 Nf3 Rh7 Ne5 f3 Nc6 Ra3 Rg1 h1Q Bh3 f1Q Rg6 f2 Qa4 Na6 b8B Nf6 g8B Rf7 b7 Qhg1 Ba7 Qb6 b8B Qc5 d8B Nd7 Bh4 Bd6 Bde7 Bg3 Nd8 Qfg2 Rf6 Qf3 Rb6 Qgg2 Kc1 d2+ Kc2 d1N Bh7+ Ke3 Bbd6 Nc3 Nd2 Nb5 Be4 Nbc7 Rd1 a1B Be5 Bc3 B5d6 Ra2+ Kb3 d3 Be5 Bf4 B5d6 Qg8 Be5 Bg5 Bh2 Bf4 Bc6 Ba5 Ne4 d2 Nd6 Bg3 Be4 Ra1 Rc1 Ke2+ Rc3 Kd1 Rd3 Ra3+ Kb2+ Ke2 Rc3 Nab8 Rcb3 Ke1 Kc2 Qd1+ Kd3 Nba6 Rc3 Qc1 Rcb3 Qb5 Kd4 Kd1 Rd3+ Qb3 Ne6 Kc2 Nd8 Ne8 Kd5 Nec7+ Kc6 d1Q Kb7 Qh5 Bg4 Be1 Bh3 Nb5 Ka8 Qd5+ Rb7 Qc5 Rb6 Nbc7+
n1r1rN2/5QP1/p2qR1R1/3B1pN1/8/1b1NB1n1/2Nr2qK/nbnkN1N1 w - - 0 1 illegal: No possible last move, all moves rejected
bNq5/r1kr4/1qp5/1p2Nb1p/2PN3B/B4NbR/nnK5/N1R2bQN w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f5 e4 axb4 exf5 g5 h4 gxh4 a3 Ne7 Bc4 Ng8 Ba2 b3 Rh2 bxa2 Rh3 Ne7 Rh1 Ng8 Kd2 d5 c4 Kd7 f4 h5 g4 b5 e6+ Kc6 a4 h3 f6 h2 f7 d4 g5 d3 g6 Ba6 f5 Ra7 g7 Qd7 f6 Bc5 f8N Qd4 a5 Rb7 e7 Bd6 e8N Qh4 f7 Be5 Ng6 Qg3 f8B Qg4 Bca3 Rh7 Bfe7 Nf6 g8N Nd5 Ngf6 Bg3 Nf3 Nf4 Ne4 Ra7 Ng7 Bc8 a6 Bf5 Bh4 Kb6 Nf2 Nc6 Kc3 d2 Qg1 d1B Nge5 Nb4 Ne6 Nfd3 Nbd2 Nb2 Rc1 a1Q Ned4 Rd7 N2b3 Be2 Kd2 Qb1 Na1 Bf1 Kc3 Qbe4 Kd2 Qc6 Kc3 Ra8 a7 Qg8 Kd2 Qc8 Kc3 Na2+ Kb3 Rb8 a8N+ Kb7 Nb6 Ra8 Rd1 Ra7 Rc1 Re7 Nbd7 Qb6 Nb8 Rd7 Qg2 Be6 Kc2 Bg4 Rg1 h1B Qh2 Bhg2 Rh1 Be6 Qg1 Bf5+ Kb3 Qd8 Rh3 Kc8 Nh2 Ba8 Nhf3 c6 Nh1 Qf8 Bae7 Kc7 Ba3 Bg4 Kc2 Qc8 Qf2 Be6 Qg1 Bf5+
2bk1b2/N2Nq1Rq/2B2bP1/3QR1pn/nNr1p2p/K7/2b4B/b1NNN3 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 e4 g5 a4 b5 e5 Qb6 h5 Qc6 Bc4 Qg2 Bf1 Ra6 axb5 Rg6 e6 fxe6 hxg6 e5 Qd2 e4 Qd3 Qxg4 Qd1 Qg2 Kd2 h5 c4 e5 Kc2 d5 Kb3 h4 f4 d3 c5 e3 f5 a4+ Ka3 e2 b4 e1B b6 d4 f6 d2 f7+ Kd7 b5 d3 b7 Rh5 b6 Ke7 c6 Qg4 c7 Bd7 Nc3 Rh6 Nf3 Be6 Bg2 Na6 b8N Bc8 b7 Rh7 Nd7 Qe4 b8N Nf6 Nc5 Nh5 Nb3 Nc5 Na6 Bf2 Rb1 Bd4 Ne1 Rg7 Qf3 d1Q Bf4 d2 Nb4 Qc1+ Rb2 d1B Bh2 Bc2 Nd1 Qce3 Rg1 Qb7 Qd5 Bc3 Nc1 Rg8 Ka2 a3 Rf1 Na4 Rf5 Bb1+ Kb3 a2 Ka3 a1B Re2 Bc2 Rf4 Bd7 c8N+ Kd8 Na7 Qc5 Rc4 Qe7 Rc7 Rh8 Qd3 Rh7 Bc6 Rg7 Qd5 e4 Rf2 Rg8 Rf5 Bf6 Re5 Rh8 Qc5 Bc8 Qc4 Bh6 f8N Bhg7 Nd7 Bf8 Qd5 Qh7 Nb5 Qa7 Rb7 Qc5 Na7 Qce7 Rc7 Bh6 Nb8+ Qd6 Qf7 Ba6 Nf3 Re8 Qe6 Re7 Be8 Bhg7 Qd5 Bf8 Ne1 Bc8 Bb5 Re6 Rg7 Re7 Be8 Rc7 Bb5 Rc4 Nd7 Qe6 Bc6 Qe7
N1N1nr2/p1BPR1pB/BKp2R2/Bb1rbq2/5kBb/B7/1r2Q3/2q3r1 w - - 0 1 illegal: Other
1kbr3N/bb2b2B/p1pN4/3bN1K1/2N1N2P/b1R1R2b/2Q2p1B/2q1Nr2 w - - 0 1 illegal: No proof kernel
nR1R1R2/3nN1nR/K3BP1r/1nq1R2r/2q2b1B/3Nn3/kn3R1b/3r1bQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 a5 g4 d5 b4 h5 g5 d3 Kc3 d2 g6 a4 c5 h3 g7 h4 b6 a3 c6 d4+ Kc4 d3 Kb5 Kd5 b7 e5 f5 a2 f6 h2 c7 e3 Qe1 d1R Qc3 d2 Bd3 e2 Bg6 e1B Bc2 e4 Na3 e3 Qb2 e2 Bg6 h3 Qc3 Ne7 g8R Nd7 b8R Rh6 Bb2 Ba6+ Ka5 Nc8 b5 Qe7 b6 Qc5+ Nb5 Bd6 b7 Bf4 Bf5 Beg3 Rg7 e1N Rc1 a1N Bb1 Nec2 Re7 Ncb6 c8R Ne3 Rf8 Nac2 Ne2 Na3 Rbd8 Rh5 Re1 h1N b8R Bh2 Rc2 Ng3 Rh7 Ngf5 Bc1 Ng7 Ba2+ Qc4 Nd6 Nb5 Qa3 Ra7 Nf5 Na8 Qb4 Rc7 Qb1 Rc5 Neg3 Rh6 Ne7+ Kd4 Nh1 Rch5 Rb2 Kc3 Qg6 Qc5 Be6 Qc4 Rc2+ Kb3 Rb2+ Ka3 Nf2 Qc5 Nd3 Qc4 Rb1+ Ka2 Qg5 Bb7 Rb3 Bg2 Ka6 Bf1 Qg6 Bhg3 Re2 h2 Rf2 h1Q Qg4 Bh2 Qg1 Qhd5 Rb4 Qcc5 Re4 Qdc4 Re5 Re1 Rf3 d1N Rf2+ Nb2 Bd2 Re2 Be1 Rd2 Rf3 Bh3 Bh4 Bf1 Rf2 Rd1
b1bk4/5n2/3n1r2/bn1n1q2/B1P1N3/nKbqB1RN/2Qb3B/Br1BBR2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 Kc2 a4 e4 d3+ Kc3 d2 e5 a3 b6 g3 e6 d4+ Kc2 a2 b7 f3 h5 f2 b5 g2 b6 d3+ Kb3 g4 e7 f4 h6 f3 h7 g3 Rh4 Nh6 Rh5 Bg7 Qe1 d1B+ Kb4 d2 Ra5 Rf8 h8B Na6+ Ka3 Rf6 b8B Nc5 b7 Qd3+ Nc3 Nf7 Be5 Ne4 b8B Ned6 Ne2 g1B Bc7 g2 Rb1 a1N Ra7 Nc2+ Ka4 Na3+ Rb3 Bc2 Ng3 d1N Nd5 Nc3+ Kb4 Ncb5 Be2 f1N Qf2 Ne3 Nf4 Nd5+ Ka4 Bh2 Nh3 g1B Ne4 Bf4 Bd1 Bd2 Bc3 Rb8 Qg2 f2 Qg6 Kd7 e8B+ Ke7 Bc6 f1Q Ba1 Ba5 Be3 Qf5 Bc3 Bh2 Be1 Bf4 Qg2 Bb1 Qc2 Rb7 Bb8 Kd8 Rc3 Bfh6 Kb3 Re7 Bc5 Bd2 Be3 Ne8 Bh2 Ned6 Neg5 Re4 Ra8 Rf4 Ne4 Rf1 Ra6 Nbc7 Ba4 Ncb5 Rc6 Rh6 Nef2 Qde4 Bd4 Ne7 Be2 Ne8 Qa2 Qg5 Rf6 Ned6 Rg3 Bd3 Rf4 Qgf5 Be3 Ba1 Bc3 Rf6 Qc2 Qd4 Bb2 Be4 Bh5 Bd5 Ne4 Ba8 B1f2 Rc1 Bd1 Nd5 Be1 Qd3+ Bc3 Bb2 Rf1 Qe2 Bb4 Bd4 Bc3 Qd3 Ka2 Be5 Ba1 Bec3 Kb3 Rb1+
3b2NR/n1B2qkN/1rB1r1nq/2n1R1n1/1B1B2bQ/1P4q1/rB1q4/2K1B2n w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 h4 Kf7 f4 c5 d4 e5 Kd2 a5 b6 g5 d5 a4 h5 a3 d6 a2 h6 e3+ Kc2 g3 b3 e2 h7 e1R d7 e4 b7 c3 f5 c4 f6 g4 Rh3 e3 Nf3 g2 Rh1 g1Q Qd6 g3 Qa3 g2 Be2 Ne7 Qa5 Ng6 Qa6 Be7 Bb2 Nc6 b8B Na7 Bd3 e2 Rh3 Qh1 Na3 g1N Rc1 a1Q Rh5 Nh3 Qa4 Ng5 Nb1 Qh3 Bd6 Qg3 Be4 Qc7 d8B Bg4 Rd1 Qa2 Kc1 c2 Nbd2 Rb8 Bc5 Rb6 Bf2 Qb7 Bc7 Ra8 h8B Bd8 Bc6 Kg8 Bb8 Qf7 Bc7 Kf8 Ne4 Kg8 Kd2 c1N Kc2 c3 Rd5 Nd3 Re5 Nc5 Qd4 Rf1 Be1 Rf2 Kc1 c2 Rh1 Rh2 Qf2 Rh6 Qh2 Qa5 Qh4 Qb4 Nc3 Qa5 Nd5 Qb4 Ne7+ Kh7 Bd4 Qd2+ Kb2 c1N+ Kb1 N1d3 Ng8 Nf2 Bg7 Qd3+ Kc1 Qa6 Rh2 Nh1 Bb2 Qd7 f7 Qe6 f8B Qf7 Bd5 Re6 Bc6 Qb6 Rd5 Qa6 Bgd4 Qb6 Bfd6 Qa6 Re5 Kg7 Nd2 Qb6 Ne4 Qa6 Nef6 Qb6 Nh7 Qa6 Bd2 e1Q+ Kc2 Qee3 Be1 Qae2+ Kb1 Q2d2 Rh3 Nb5 Be7 Ra2 Rh2 Na7 Bed6 Nb7 Bb4 Nc5 Bb7 Nf3 Qg5 Rb6 Bc6 Qef4 Nhf6 Qfe3 Qh5 Nf8 Qg5+ Rg6 Rh8 Qef4 Qh5 Qh6 Nh7 Re6 Qh3 Ng5 Qh4 Qe2 Kc1 Ng6 Bb5 Qed3 Bc6 Qd2+
1R2n3/1NN1PB1q/4K1nB/q1bN3R/k2q1NQ1/nr3bN1/4b1b1/q1r1N2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 h5 e4 a5 b4 f5 c4 f3 b6 Kc6 c5 Kb5 b7 f4 e5 h3 g5 f2 g6 h4 c6 a4 g7 h2 c7 f3 e6 a3 Bh3 f1B+ Ne2 f2 Bg2 a2 Ba3 h3 Bc1 Ne7 g8N Na6 b8N Bb7 c8N Ng6 Nb6 Bc5 e7 Nc7 Nf6 Ne8 Na6 Rc8 Nh5 Rb8 Be4 Bg2 Nhg3 f1N Nd2 Ne3 Nf3 Nc4 Nf4 Na3 Rb1 a1Q Ne1 Qc7 Qg4 Rh7 Nc8 Qa5 Nc7+ Ka4 b5 Ba8 b6 Rg7 Rg1 h1B b7 h2 Nd6 Rc8 b8N Rh7 Bf3 Rh3 Nd7 Bc6 Nf6 Bb7 Ke2 d3+ Kd1 d2 Ke2 d1B+ Kd3 d4 Bd5 Ba8 Rb8 Bc6 Bf7 Bcf3 Nce6 Rc7 Nb7 Rc6 N6d5 Rc7 Nb4 Rc6 Nc7 Bde2+ Kd2 d3 Rf1 Bd6 Ke3 d2 Nbd5 d1Q Bd2 Rc1 Rg1 Qf6 Rf1 Qh4 Kd4 Qh7 Rf2 Nf8 Rf1 Bc5+ Ke5 Ng6+ Ke6 Qc3 Be3 Qdd4 Nfd3 Qcb4 Bh6 Qa5 N3f4 Be4 Ngh5 Rb3 Ng3 Bgf3 Rf2 Bhg2 Rf1 h1Q Rf2 Qg1 Rf1 Bh1 Rf2 Qa1 Rh2 Qgd4 Rh3 Bfg2 Rh5 B4f3
4N1Q1/qN2r2K/Nn1rn3/3NP1bb/B3q3/2BnqRN1/1rNrR3/1kn4b w - - 0 1 illegal: No possible last move
b2kb2b/nb3Knn/NRrr1R2/3R1r1B/2R3P1/1rBRr1Q1/1n3NR1/4q3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 c4 a5 b4 h3 e4 f3 b6 f2 e5 a4 b7 h4 e6 h2 e7 a3 b5 f4 b6 h3 c5 f3 c6 a2 c7 Ra6 Ne2 Bd7 c8R Nc6 b8R Bg7 b7 Na7 Qa4 Nf6 Qc4 Rc6 Qc2 Nh7 Bg2 f1N Qb3 f2 Bd2 Ne3 Rd1 f1R Nf4 h1B Bc3 h2 Na3 Nf5 Nb5 Bf6 Rab1 a1R Be4 Ra3 Rb2 Ng7 Nh3 Rf5 Nf2 Bg2 Ra8 h1B b8R Rg8 Rb6 Bf3 Qb4 Rb3 Qd6 Bhg2 Qg3 Rf8 Kd2 d3 Ke3 d2 Rc2 Re5 Kf4 d4 Bg6+ Rf7 Rab8 d3 Bh5 Re3 Ra6 Bh1 Rbb6 Be4 Ra5 Bhg2 Rf1 d1N Rc7 d2 Rca2 Bh4+ Ke5 Nb2 R2a3 d1R Rg1 Rf6 Rc4 Rc6 Raa6 Bh1 Rg2 Rdd6 R6a5 Bdf5 Nc7+ Kd7 e8R Bf6+ Kf4 Qe7 Rd5 Qe6 Re7+ Kd8 Na6 Rf8 Rf7 Qe7 Ra1 Bd7 Rad1 Bd4 Rd3 Bf3 Ne4 Qh4 Rf6 Rf7 Qh3 Qe1 Nf2 Rf8 Kg3 Be4+ Kh4 Rf7 Qg3 Rf8 Rg6 Rf5 Rf6 Rff3 Rf8+ Ne8 Rg5 Rc8 Rg1 Bh8 Rf6 Ba8 Ra5 Rf5 Re5 Bhb7 Rg2 Nf8 Rec5 Rcc6 Rcd5 Rff3 Kg5 Rf5+ Kh6 Nh7 Kg6 Ng7 Kf7 Be8+
B2k2B1/KPb2brr/NB2nb2/5q2/4qBb1/1Q4nr/r2N4/RB2BRrr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 a5 c4 g3 h4 g2 c5 g4 h5 a4 c6 f3 b6 a3 h6 f2 b5 f4 c7 f3 e5 g3 e6 a2 b7 Nc6 b8B Qh4 b6 Nge7 h7 Nf5 e7 Nd8 Qd2 Be6 c8B Bf7 Qh6 Ne6 Be2 f1Q Na3 f2 Nf3 g1R Ba7 g2 Bb7 Ng3 Bf4 Kd7 e8B+ Kd8 Ba4 Bd6 Bb3 Bc7 Nb5 Qb1+ Bc2 f1R Nd2 Qe7 Qh3 Rf3+ Be3 Qf1 Bb1 Qh4 Bb8 Ra6 Ba8 Ra5 Kc2 d3+ Kb3 d4 Kb4 Qe4 b7 Ra3 Bf2 Re3 Be1 Qff5 Ba7 Ra6 Bb6 Ra3 Nf1 d2 Bc4 d1B Nd2 Bg4 Bd5 d3+ Bc4 Rc3 Ka5 Re2 Ka6 Rf2 Ka7 Re2 Nf1 d2 Bd5 d1R Nd2 Rf1 Bb3 g1R Bd5 Rg8 h8B Rg7 Bc4 Rh7 Be5 Rff2 Bf4 Rfg2 Rh2 Rh1 Bd5 Rgg1 Rf2 Rdc1 Rf1 Reg2 Nd4 R1c2 N4b3 Rb2 Nc5 Rf3 Bd3 Rc2 Na6 Rb2 Rd1 a1B Bb1 Ra2 Bb3 Bf6 Bc4 Ne2 Qg3 Rd3 Qf3 Rg3 Rc1 Rd7 Qb3 Rgh3 Rd1 Ng3 Rc1 Bg6 Rd1 Rdg7 Bd5 Nd4 Bg8 Bf7 Bc2 R1h2 Ra1 Ne6 Bb1 Rhh1
1b2NrbQ/1kNbNr1R/2N5/q2qN1q1/1n1bb2R/1P1p2BK/4rnB1/N7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 c4 h5 e4 a5 g4 d5 Kg2 Kd7 e5 Kc7 b6+ Kb7 g5 f3+ Kh2 f4 c5 d3 g6 h3 b3 f2 e6 d4 e7 f3 e8N d2 g7 h4 Ra3 a4 Qc2 d1Q Qb2 Na6 Bg2 f1B Bd2 Qe1 Bh6 Bd7 Nc3 Nf6 g8N Bc4 Na2 d3 Qd2 Nb4 Qf2 Bd6+ Bf4 Bb8 Ne7 Rf8 Nc6 Bg8 Qd4 f2 Bg3 f1R Nf3 Qe3 Nfe5 Qg5 Qc3 Rf2 Qd4 Re2 Qa1 Ra7 Qb2 Nbd5 Nab4 Qc7 Ra2 a3 Nc2 Nb4 Na1 Qd8 Qd4 Qc7 Rc2 a2 Rc4 Qd8 Qg4 Qc7 Qh5 Qd8 Qh8 Ng4+ Kg1 Qc7 Rf4 h2+ Kf1 Ka6 b7 h3 Rf7 Qa5 Rf4 Bd6 b8N+ Kb7 Na6 Bb8 Nac7 Bf5 Nc2 a1B Re4 Bd4 Na1 Nf6 Rh4 Bd7 Rg1 h1B Rh7 Re3 Kf2 h2 Rc1 Bb2 Rc4 Re2+ Kf3 Bc3 Rch4 Bb2 Bf4 Ng4 Kg3 Bd4 Kh3 Bge6 Bg3 Bg8 Bf1 Be4 Bg2 h1Q+ Bh2 Qf1 Na8 Qf7 Nd8+ Kc8 c6 Be6 Bg3 Re7 c7 Bd7 Ndc6 Kb7 c8N Qfd5 Nac7 Ref7 N8e7 Nf2+
2N2n2/R2RB1bk/3nB1Nr/1q1r1R1P/R1Q2nnn/p3Kb2/1R3rR1/1q3b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 e4 Kg7 c5 d5 e5 d3 h5 a4 b6 a3 e6 f3 b7 g3 b5 g2 b6 f4 e7 g4 e8R g3 c6 d4 c7 f2 Nh3 g1N Qe1 g2 Ng5 f3 Nf7 Qd5 Nh6 Ra5 Nc3 Nh3 Rg1 Kh7 Rd8 Bg7 Qe2 Bg4 c8R Nf6 Nf7 Nbd7 b8R Nf8 b7 Qb5 Rc7 Nf4 Rdd7 Ne8 Ra8 Nd6 b8R Bh6 Rca7 Bg7 Rh1 g1N Bh3 f1B Nd5 f2 Ne7 Bf3 Rb1 Qc4 R1b4 Rd5 Be6 Qc6 Ne5 Qb5 Kd1 d2 Nc8 Nb7 Rba4 Nd6 Kc2 d1N Kd2 d3 Rh2 Ne3 Ng6 Ng4 Bb2 Qb7 Rg2 Qb5 Kd1 d2 Bf6 Qb7 Kc2 Qb5 Qc4 d1Q+ Kc3 Qdb1 R7a5 B1e2 R8a7 f1R Rb6 Rf2 Rbb7 Re5 Kd4 Bf1 Rb6 Bc6 Be7 Nf3+ Kc3 Nh4 Kd4 Bf3 Rbb7 Nf6 Rb8 Rd5+ Ke3 Qc6 Rb2 Qb5 Bg4 Kg8 Bh3 Rh6 Be6+ Kh7 Qb4 Rdd2 Ne5 Qc6 Ng6 Rd1 Rd5 Qb5 Rf5 Rd5 Qc4 Ng4+
br2knnR/Q2R2p1/2b3n1/qq1NN2n/N3N2K/1rBBn2P/1b6/2qN3N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 b4 d5 c4 f5 e4 d3 c5 a4 c6 d4 e5 d2 e6 f3 Kg3 f2 e7 d3 c7 a3 b6 a2 b5 Bd7 c8N Bc6 b7 Nd7 b8N Ra3 b6 Rb3 b7 Qa5 Bb2 Qb5 Qe2 d1N Nh3 d2+ Bc3 Ne3 Na6 d1Q b8N Qc1 Nc5 Ba8 Qd1 Bc6 Be2 f1B Bd3 Bfg2 Na4 Bge4 Ncb6 f4+ Kf2 f3 Kg3 f2 Qg1 Bg2 Nd5 Ba8 Nc6 f1N+ Kf4 g3 Kg5 Bf3 Nf2 g2 Ne5 Ng3 h3 Nh5 Kh4 Be4 Rh2 Bf3 Nh1 Bc6 Qf2 g1N Rg2 Ne2 Rg1 Nef4 Rd1 Nc2 Qa7 Bg2 Bd4 Bf3 Nbc3 Ne3 Rd2 Be4 Nd1 Bf3 Rb1 a1Q Bc3 Ba8 Nab2 Qaa5 Na4 Ra3 Rb4 Rb3 Rd4 Rh6 Rc4 Rb6 Rc6 Rb8 Rh6 Nc5 Rh8 Nce6 Ndb6 Bfb7 Nd5 Bc6 Ng6 Kf7 e8N+ Be7+ Nef6 Nf8 Qb6 Bd6 Ne4 Ke8 Qa7 Ba3 Ne5 Bb2 Rf2 N4e6 Rf7 Nef4 Rd7 N4g6+
rN4k1/B3R1q1/1N1q1Q2/R3pBbn/5r1n/1RRb1rqP/4Kn2/bqR2R2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 c4 Kf7 f4 a5 b4 d5 b6 g5 h3 e5 f5 e3 b7 e2 c5 d3 b5 d2+ Kf2 e1Q+ Kg2 d4 b6 d3 c6 a4 f6 g3 Kf3 g2 c7 a3 Ne2 g1R Ng3 a2 Nc3 Ne7 Na4 Nf5 Bb2 Rh4 Ne4 Be7 Nec5 Kg8 Na6 Qd6 Bd4 Nd7 b8R Rgg4 Qc1 d1N b7 d2 Nb6 Nf2 Qc6 d1Q+ Be2 Qc2 Bd3 Qcb1 Rf1 Qc3 Ke2 Rg3 Rc1 g4 Bc2 Rf3 f7+ Kf8 Bd3 g3 Bc5 Kg7 f8R g2 Re8 Bf6 Re7+ Kg8 Bd4 g1Q Bc5 Nh6 Bf5 Bg5 Bd4 Nf6 Bc5 Ra7 Ra8 Rhf4 b8R Nh5 Rb7 Qcb3 Nb8 Qg3 Be3 Qf7 Bc5 Raa3 Ra5 Qg7 Rf1 Bd7 c8R+ Be8 Rcc7 Bg6 Be3 Qe4 Rae1 a1B Rc1 Qb1 Rc3 Qd8 Qf6 Qd6 Rcc1 Raa4 R7c3 Bh7 Rb5 Ra8 Ra7 Bg6 Raa5 Bh7 Rbb3 Bg6 Bd3 Nf5 Bc2 Nh4 Bf5 Nd1 Nc8 Nf2 Ba7 Bh7 Nb6 Bg6 Bc8 Be4 Bf5 Bd3+
R1K3b1/1RQq1n1N/3r2N1/rrbN3B/bN6/1n4Bk/1pNbq2P/1b2N2b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kf6 d4 Kg5 a4 Kh4 a5 f5 a6 g5 d6 b5 a7 c5 d5 b3 d7 b2 d6 c4 e5 c3 e6 g3+ Kf3 g2 e7 c2 e8N g4+ Ke2 g3 Kd3 f3 Kd4 f4 Kc5 b4 Nf6 b3 Qd5 f2 Qd3 f3 Kb5 Nc6 Bh6 c1B Bg7 Bb7 Qc2 Nh6 Na3 b1B Nh7 Nf7 Be5 Bd2 Be2 Na5 Qc7 f1B Kb6 f2 Bh5 Bb5 Nc2 f1B Nf3+ Kh3 Nfe1 g1R Ra2 g2 Bg3 Qe7 d8N Ba4 d7 Bc4 Nc6 Qe2 d8N b2 Ne5 Nb3 Ndc6 Rg8 N6b4 Rg5 Ng6 Be4 Ra3 Rb5+ Ka6 Rd8 a8N Bc5 Nb6 Rd6 Ka7 Rf1 Kb8 g1Q Kc8 Rf5 N6d5 Qd4 Rg1 Bh1 Rg2 Rff6 Rf2 Ra6 Rf3 Raa5 Rf1 Rfa6 Rf6 Qdd3 Rb6 Qd4 Rb7 Rd6 Nc3 Qd5 Ra2 Qc6 Ncd5 Qd7+ Kb8 Raa6 Nhf6 Nh6 Nc3 Bg8 Ncd5 Nf7 Ra3 Nc1 Ra2 Bb3 Nh7 Ra7 Ra5 Ba4 Ra6 Qc6 Kc8 Nb3 Rab6 Raa5 Ra6 Bg5 Raa7 Bd2 Ra8 Qd7+
6R1/1RB5/2BQR1K1/1Rrnb1Nr/3n1RbP/1Rr1p3/Nb4q1/1nrb1r1k w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 Kh4 b6 e5 f5 a5 b7 g5 c5 d5 c6 g3 h3 g4 f6 e3 Kd3 a4 b5 a3 b6 e2 c7 e1R f7 a2 Bh6 e4+ Kd2 e3+ Kd3 g2 Nc3 Kg3 h4 Bd6 f8R Be5 Rh2 Ne7 Qa4 Ra5 Nd1 Nbc6 b8R Rc5 Nf2 Rec1 Rf5 Qg8 Ngh3 g1R Bg2 Rgf1 b7 Rh7 Bf8 Rh5 Nd1 Qg5 Rb1 a1B Rf6 Bb2 Qa6 Be6 c8R R1c3+ Ke2 Bd7 Re6 Qg7 Rh1 Qg6 Rg1 Kh2 Ng5 g3 Bg7 Qe4 Rf8 Qg6 Rf2 d3+ Kf3 d2 Kg4 d4 Rf4 d3 Bd5 Nd4 Qd6 g2 Bc6 Nd5 Bf6 Rb5 Bd8 Rbc5 Bc7 Qg7 Rg8 Bc8 b8R Bd7 Nf2 d1N Rb5 d2 Ne4 Rc2 Ra1 Ba3 Nc3 Rf3 Rb7 Qg6 Na2 N1c3 Rgb1 Qe4 R1b3 Nb1 R3b5 R2c3 Nc1 Bb2 Ra3 Kh1 Rab3 Rf2 Na2 g1R+ Kh3 Rgc1 Kg4 Nf5 Re7 Rff1 Ree8 d1B+ Nf3 Rh8 Kg5 Rh5+ Kg6 Be6 Ng5 Qg2 Re7 Nd4 Ree8 Bh3 Re6 Bhg4
7n/1B2b2r/1knp2Q1/1bN4K/3NNN1P/1Rq5/1r2NqNB/R1nr1nnr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 a5 c4 g5 e4 d3 b4 a4 e5 f3 Kg3 a3 b6 a2 e6 d2 e7 d6 c5 Kd7 e8N Kc6 b5+ Kb7 Na3 f2 Rh3 Qf6 Bg2+ Nc6 Nc2 f1R Ne3 Rb8 Qc2 d1R Ne2 Qc3 Nf6 Rh1 Ne4 Bd7 Bf3 Nge7 Ng2 Rh5 Bf4 Ng6 Be5 Be7 Qb1 Ka8 b7+ Ka7 b6+ Ka6 Bf4 Nh8 Be5 Rh7 Bf4 Rg8 b8N+ Ka5 Na6 Rb8 b7 Be8 Qc2 Kb5 Rc1 a1N Be5 Nb3 Ra1 Nc1 Qb1+ Nb4 c6 Kb6 c7 Bb5 Nac5 Nc6 c8N+ Kc7 Na7 Kb6 Nd3 f4+ Kf2 Rd8 b8N Re8 Na6 Rb8 Nac5 Rb7 Nge1 g3+ Kg2 g4 Qc2 Nb4 Nc6 Rb8 Ncd4 Nc6 Ndb3 Ra8 Nbd4 Ra2 Qb3 Rc2 Qf7 Rb2 Qg6 Rh2+ Kf1 g2+ Kf2 g1N+ Bg2 f3 Kg3 Rh1 Ndf4 f2+ Bf3 Rd3 Neg2 Rdd2 Nfd3 f1N+ Kf4 g3 Kg4 Rf7 Ndf4 Rd1 Kh5 Rg7 Bg4 Rf7 Bc8 Rg7 Bb7 Rf7 Ne1 g2 Rg3 Nh3 Re3 g1Q Neg2 Qf2 Rd3 Ng1 Rf3 Qd2 Rb3 Qde3 Nh3 Qd2 Bh2 Qc3 Nhf4 Rh7+
B2Qbk1B/2R2n2/qb5R/1br1nq2/2Nqbrn1/n1KRR3/2R3pP/5R1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 f5 c4 d5 e4 g5 c5 a4 c6 g3 e5 g4 b6 f3 b5 a3 e6 a2 c7 f4 b7 f2 b6 d3 e7 f3 Qa4+ Qd7 Ne2 d4 Qb3 g2 Qb2 g1Q Bg2 f1Q Na3 f2 Qc2 g3 Bc6 g2 Nf4 Rh4 Qb3 Nh6 Bb2 Ra5 Qd1 Nf7 Ne6 Rc5 Qa4 Rf4 Rc1 a1N Qa8 Nc2 Nc4 Na3 Rc2 Bg7 Bd5 Nc6 b8R Nce5 Ng5 Qf5 b7 Qa1 Qa5 f1B Nh3 Be2 Ra8 Bf8 Ra7 Bd7 Ra6 Bb5 Re6 Bf3 Nf2 Be4 Rh6 Qa2 Bc3 Qga1 Rf1 Q1b2 Kd1 d2 Nh1 Bg7 Ke2 d1B+ Kd2 d3 Qb6 Bh5 c8R+ Nd8 Rc7 Ndf7 Qd6 Bf6 Bd4 Bh4 Qf6 Bf2 Qh4 Qba1 Bb2 Qd1+ Kc3 d2 Ba1 Qdg4 Bb2 Qg7 Ba1 Qgf6 Qg5 Qd6 b8R+ Qd8 Ba8 d1N+ Kb4 Ne3 Kc3 Bg1 Rbb6 N3g4 Rbd6 Be3 Rd3 Qd6 Rcc1 Qf2 Rc2 Qa6 Qh4 Rc6 Qf6 Bb6 Qd6 Rc5 Qd4 Ng5 Qd8+ Kf7 Bb2 Kg7 e8R+ Ngf7 Reh8 Bg6 Rhh3 Qe3 R8h6 Qg1 Rhe3 Qf2 Qf6+ Kf8 Qd8+ Be8 Kd4 Bc6+ Kc3 Nd7 Rg3 Qh5 Rgf3 Bb5 Kb4 Be4 Bh8 Qd4 Rfe3 Qf5 Kb3 Nde5 Kb4 Qd5 Kc3 Qd4+
3kq2r/1Rb1N1Q1/1B2bN2/Rn2R1pK/2br2n1/1R1bn1qP/3R4/1B1qqR2 w - - 0 1 illegal: No possible last move
2Nk2r1/6Bn/prn2K1b/BbR2N2/2B1Br1R/1BBb1r1b/3PQ3/4qq1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 h5 Kf3 c5 Ke4 f5+ Ke5 c3 e4 f3 g4 a6 b4 f2 b6 c2 b5 h3 g5 h2 g6 h4 g7 h3 b7 f4 b6 f3 Nc3 c4 Ra5 Bf5 Qe2 Qd3 Rc5 Kd8 Nb5 c3 Bb2 c1R Na7 c2 Nc8 Rb1 Bc3 Nf6 g8B c1Q Bb3 Nh7 Bg2 f1B Ba5 f2 Nf3 Qb2+ Nd4 Qc1 Bc3 Bg4 Nf5 Qe1 Ke6 Ra7 e5 Rg8 Be4 Nc6 b8B Rf7 b7 Bh6 Bd6 Rb2 b8B Qdb1 Bc4 Rb6 Bf8 Qa1 Bg7 Rff8 Qd1 Bd3 Qe2 f1R Bd6 Rf4 Bc7+ Ke8 Bb3 Qf1 Bc4 Qae1 Bb3 Rb7 B7a5 Rb6 Bc4 Kd8 Bb3 Re8+ Kf7 Ref8+ Kg6 Rf3 e6 Rf7 Nh4 R7f4 e7+ Kd7 e8B+ Kd8 Nf5 Bb5 Rg1 h1B Bef7 h2 Bfc4 Bh3 Rg4 B1g2 Rh4 h1Q Bbc2 Qff2 B2b3 Bf1 Qd1 Bd3 Qe2 Qff1 Kf7 Ng5+ Kf6 Nh7+
1B1b1qbR/Kp1n1k1r/2B2r2/2N1q1P1/1B4B1/Bqn5/r2QBrn1/R2q1N2 w - - 0 1 illegal: No proof kernel
B7/p1Q1B1nb/nPq2rNk/1R1B4/KRq2n2/3bb1Nb/1B3rq1/2Bn1B2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 e4 g5 b4 f5 c4 Kf7 Kc2 Kg7 Kb3 f3 h4 f4 c5 d3 e5 f2 c6 d4 b6 g3 c7 g2 e6 d2 b5 f3 e7 d3 e8B g4 h5 g3 b7 Na6 b8B Nf6 b6 Bc5 Na3 Kh6 Bb5 Qd5+ Bc4 Rf8 Nc2 Qc6 Rb1 Bh3 c8B Be3 Ne1 Ne8 Bd5 Ng7 Bb7 Rf6 Qc2 d1N Ne2 g1N Ng2 d2 Bd6 Raf8 Ngf4 g2 Ng3 Ne2 Ba8 g1Q Ng6 Qg2 Be7 Nf4 Ka3 R8f7 Rb5 Rf8 Ka4 R8f7 Bfc4 f1B Qc3 f2 Qe5 Qe8 Qc7 Bd3 Rh2 f1Q Rh1 Kg5 h6 Qc6 h7 Kh6 h8B Rf8 Nh4 Bh7 Ng6 Qd3 Re1 Qc3 Bf1 Q3c4+ Ka5 Nc3 Re2 d1B Reb2 Be2 R2b4 Nd1 Ka4 Bd3 Bg8 Nfe6 Bf7 Rf2 Bg8 Nf4 Bd5 Ne8 Be5 Rf6 Beb2 Ng7
1b1b2NK/3k2n1/2b1nnR1/1B1p1rb1/3BP1q1/rR1r3B/2n4B/1rQB2BN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kf2 d5 Kg3 g5 b4 a5 c4 f5 h4 a3 e4 d3 b5 d2 b6 a4 b7 a2 e6 a3 e7 Na6 b8B Nf6 c5 Qd7 c6 Bb7 h5 Nc7 h6 Ne6 h7 Bh6 c7 Bc6 c8B Rf8 Qe1 d1R h8B Rd3+ Nf3 Rf7 Be3 f4+ Kh2 g3+ Kh3 g4+ Kh4 g2 Nc3 g1N Ng5 f3 Be2 g3 Rb1 a1B Nh7 a2 Rb3 f2 Bd1 f1R Ne2 g2 Ng3 Ne2 Rg1 N2d4 Nh1 Ng7 Bh2 Ra3 Qc3 Bb2 Qc1 a1N Bf2 Nac2 Be3 Qb7 Bh3 Nde6 Bf2 Kd7 e8B+ Kd8 Be3 Be5 Bd7 Bb8 Bd4 Nfe8 Nf6 Qc8 Ng8 R7f5 Bc5 Nf6 Be8 Ba8 Bb5 Bc6 Bf2 Kd7 Bc5 Nh7 Kg4 Bg5 Bd4 Ne8 Kh5 Nhf6+ Kg6 Re1 Bg7 Ref1 Bf8 N8g7 Bfc5 Re1 Rf1 g1B Rf4 Qc7 Rg4 Qf4 Kf7 Be3 Rg1 Bh4 Rg6 Bd2 Bdg1 Qg4 Bcd4 Bdg5 Ne7 Nfh5+ Kg8 Nf6+ Kh8 Ref1 Ng8 Re1 Qb2 Ref1 Bf3 Rb1 Qc1 Be1 Be2 Ba5 Bd1 Bd8
bQB2b1N/q4Bkr/p2prn2/1NB1q3/1r2nK1B/3b1P2/3BB2R/2nq1R2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 e5 c4 h5 b4 e3+ Ke2 d3+ Kf3 e4+ Kf4 a6 c5 h3 b6 d2 b5 h2 c6 e2 g5 e1N b7 h4 b6 h3 c7 e3 g6+ Kg7 Nf3 e2 Ne5 Qe7 Qb3 d1Q Nc3 Rh7 Nb5 Nf6 Nf7 Ne4 Nh8 d6 Bd2 Nd7 b8B Rh6 b7 Ndf6 Ba7 Rb8 Bc5 Bf5 c8B Qd7 Ra2 Qf7 Rg1 h1R Rc2 h2 Rb2 Ra8 b8B Qa7 Bc7 Rb8 Bd8 Nd3+ Kf3 e1Q+ Be2 Rh5 Rf1 Nc1 Kf4 Rh7 Rc2 Rg1 Be7 h1B Qg8+ Kh6 g7 Rg6 Qb3 Rb7 g8B Kg7 Bf7 Rgh6 Nc3 Rb4 Nb5 Ng4 Bh4 Re6 Rc3 Bg6 Rh3 Ngf6 Rh2 Ng3+ Bd4 Ba8 f3 Bd3 Qb1 Ne4 Bc5 Ra4 Nc3 Rd4 Qb8 Ra4 Nb5 Rb4 Bde3 Qc3 Bd2 Qe5+
4n1R1/1bP2p2/nqqQ4/5N1k/1nR1rRbq/2R3B1/prBb3K/R1R2r1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 h5 e4 a5 c4 d5 b4 h3 g4 f3 Kg3 f2 c5 a4 e5 d3 b6 d4 g5 d2 e6 h2 b5 a3 b7 d3 b6 a2 c6 Bh6 e7 Nf6 g6 Ra4 g7 Na6 b8R h4+ Kg2 Rd4 b7 h3+ Kg3 Rb4 Nc3 Rb2 Nge2 Rg8 Rg1 h1Q Ne4 h2 Nd4 Rf8 g8R Be3 Qc2 d1N Nf5 d2 Qd3 Nc3 Qd6 d1B Bd3 Ncd5 Bc2 Bg4 Rd1 f1R Nf2 Bh6 Bf4 Bg5 Be5 Bd2 Rdc1 Qa5 c7 Qb5 Qb4 Qe4 Bf4 h1Q Qd6 Qh6 Nh1 Qea4 Be5 Qh4+ Kg2 Qab4 Bg3 Qc6 Qe5 Kd7 e8R Qbc5 Re6 Re8 Qf4 Re7 Re3 Ne8 Rc3 Ke6 Qb4 Kf6 Ra8 Nb8 Ra4 Na6 b8R Qe3 Rb5 Qeb6 Rbc5 Bb7 Qf4 Ree1 Qd6+ Re6 Rf4 Ndb4+ Qd5 Re4 R5c4 Ng7 Qd6+ Kg5 Bb1 Kh5 Bc2 Qg5 Kh2 Ne8 Qd7 Qd8 Qd6 Qh4+
Nk3r2/r4N2/2p2B2/4n1RN/p2K1q1n/2NNPQRn/4Nb1r/1r2rBbb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 h5 b4 f5 d4 a5 b6 a4 b5 c3 g5 f3 Ke3 c2 g6 h3 d5 h2 d6 f2 b7 f4+ Kd4 f3 b6 h4 g7 h3 Kd3 Ra7 Na3 Nh6 g8N Nf5 Bd2 c1B Qb3 Nh4 Nb5 Nc6 Bc3 Qf6 Ra3 Ne5+ Kd4 Qf5 b8N+ Kd8 d7 Bb7 Bb2 Bf4 Bc3 Bg3 Na6 Bh6 Nf6 Rf8 Nh5 Bhf4 Bg2 f1R Nb4 f2 Nd3 Rb1 Bf1 Be4 b7 c6 b8N Bg2 Nd6 Kc7 d8N Bd2 N8f7 Bf3 Bg2 f1R Nd7 Rfe1 Nb6 Kb8 Bf1 Bg5 Ne4 Be7 Qd5 Bf2+ e3 Bd6 Ne2 Bc7 Rg1 h1N Rg3 h2 Ra1 Bg1 Nec5 Nf2 Na8 h1R Ne4 Rh2 Bb2 Ba5 N4c3 Bh1 Qf3 Bc7 Ra3 Nh3 Rb3+ Kc8 Rb5 Bd8 Rd5 Kb8 Rd6 Bg5 Rg6 Bf4 R3g5 Bg3 Rg8 B3f2 Rg3 Qf6 R8g5 Qe6 Ba3 Qf6 Be7 Qf5 Bf6 Qf4+
b1K4N/r1B1N2b/bpQ5/b1NB2N1/6p1/1qRN2Nn/rP3R1r/n1nkb3 w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 cxd5 hxg4 a5 Nc6 a6 Nb4 Bh3 Nxa6 Bg2 Nb4 Bf1 Na2 Kf2 Ke7 d4 Kd6 e4 f5 h4 a5 h5 g5 h6 c5 h7 a4 Ne2 f3 Ke3 f4+ Kd3 g3 Kc4 f2 Kb5 g4 Nd2 b6 Bh3 f1B Qe1 a3 Nf3 c4 Bg2 c3 Ne5 f3 Nd3 f2 Rh2 c2 Qc3 Bb7 Bh6 Ne7 Rc1 Nc6 Bf4+ Ne5 Bh1 g2 Ng3 g1R Bg2 Ra7 Qc6+ Ke7 d6+ Ke6 Bf3 Nf7 e5 Ba8 d7+ Bd6 Be4 Ng5 Bh1 Qg8 d8N+ Ke7 d5 Bb4 e6 Kf6 d6 Nh3 d7 Ba5 Bc7 Kg5 e7 Qe6 Ra1 c1B e8N Bcd2 Ng7 Be1 Nb7 Nc1 d8N a2 Bd5 Rh1 Rg2 Rh2 Nc5 Qf7 Rb1 a1N N7f5 Be2 Ne7 f1B Rf2 Bd1 Bf3 Bc2 Nde6+ Kh4 Ng5 Qg8 Qb7 Qb3+ Kc6 Rf8 Kd7 Re8 Nb4 Ba6 h8N Bh7 Nbd3 Rf8 Bc6 Rf4 Bd5 Ra4 Qc6 Ra3 Rc2 Ra2 Rc3 Ng1 Nf3+ Kh3 Kd8 Kg2 Kd7 Nh3 Ng5+ Kg1 Kd8 Bb5 Kc8 Bc4 Nb4 Kf2 Nbd3+ Ke3 Qa4 Kd2 Qc6 Ne2 Rbc1 Bb5 R1c2+ Kd1 Na6 Nc1 Rf2 Bc4 Nac5 Ba6+
1n1r4/1RK2R2/1bR3r1/1PN1Q1Rq/2pq2rp/1R3br1/1nRb4/1r1B1NBk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 c5+ Kc3 Ke5 b4 Ke4 g4 a5 d4 h5 b6 f3 d5 f2 d6 h3 b5 f4 b7 a4 d7 f3 g5 a3 g6 a2 g7 h2 Qe1 Ra6 Nh3 Ne7 g8R Ng6 Be3 Nf4 Rg5 Nd3 Nf4 Nb2 Nd3 Rg6 Rhg1 h1R R1g2 Qe8 d8R h4 Rd7 Rg1 Rf7 Bg4 Bd4 Bd6 e3 Qe5 Be2 f1R Bd1 Rd8 Rc2 f2 Qe2 Bf3 Nd2+ Kd5 Qe1 Rg3 Rac1 Rfg1 Nf1 Ke4 Qe2 a1Q Qe1 Nd7 b8R Qh8 Rb6 Qh5 Rb7 Nb8 Qe2 Rg4 Qe1 R1g3 Rb1 Be2 Rbc1 Bf4 Rb1 Kf3 e4 Kg2 e5 Qa4 e6 Bf3 e7 Be3 e8R Kh1 Re6 Qa1 Rc6 Qa4 Nd2+ f1R Qe2 Re1 Nf1 Bg1 Qe5 Qa7 Ra1 Bf2 Ra3 Be3 Be2 Rb1 Rb3 Bf2 Bd1 Bg1 Bf2 Qb6 Kd2 c3+ Ke3 c4+ Nc5 Qa7 Rd2 c2 Re2 Rg2 Rd2 R4g3 Kf4 c1B Kf5 Rg4 Rc2 Bd2 Bd4 R2g3 Be3 Rg7 Bd4 Bge3 Ke6 Rg6+ Ke7 Bf4 Bg1 Bfe3 Na4 Qd4 Nc5 Rdd6 Nd7 Rd5 Kd8 Rdd6 Kc8 Bf2 Nc5 Rd8+ Kc7 Qc3 Na6 Ba7 Nc5 Qe3 Be2 Qd4 Bd1 Bb6+
k2B2Bn/1Rb1prnb/n2r3Q/2BN3P/4rq2/1N1K1q2/4pr2/B1rB1BR1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Kd2 d5 f4 Kd7 h4 Kc6 c4 g5 a4 b5 f5 Kb7 f6 b3 h6 b4 h5 g4 f7 e3+ Kd3 e2 c5 g3 h7 b2 a5 g2 Nd2 b1Q+ Qc2 b3 Ra2 b2 Ra3 Nh6 Rh2 Bg7 f8B Nf7 Nc4 Qc7 Ne3 Qf4 Bd2 Be5 Rh1 Bc7 Nf3 g1R Bh6 Rg7 Rg1 Rf8 h8B Na6 c6+ Kb8 Be1 Qc1 Ra2 b1R Nd2 Qa3+ Nb3 Rc1 Rb2 Rh7 Be5 Nh8 Qd2 Rhf7 Bf2 Ra7 Bhg7 Ka8 Bd6 Rb7 Bc5 Rb4 Be1 Rg8 Be5 Rg2 Bg3 Rf2 Rb1 Nb8 a6 Be6 a7 Na6 Bg2 Bf5+ Be4 Bb6 c7 Bh7 c8B Bc7 Bh3 Rbc4 Bf1 Ra4 Qa5 Rac4 Qb6 Rb4 Kd2 d3 Qh6 Rbc4 Bf5 Re4 Ba1 d4 Bh2 Qa4 Bd7 Qc6 Rb2 Qcf6 Ba4 Qf3 Bhd6 Q6f4 Bb6 Rc6 Bdc5 Rd6 Kc1 d2+ Kc2 d1R Nd5 d3+ Kc3 Bb8 Bd8 d2+ Kc2 Bc7 Rb1 Q3g4 Kd3 Rc1 Rb2 d1N Rb1 Kb7 a8B+ Kb8 Bb7 Ne3 Bc8 Nf5 Be6 Ng7 Rb2 Rf6 Bg8 Kb7 Nd4+ Ka8 Rb7 Rf8 Bd1 Rf7 Nb3 Qgf3+
k3N1Rb/q1pr1N1B/1r1qn2q/b3B3/p1PN2qq/nn1QN1R1/3K2N1/N7 w - - 0 1 illegal: No possible last move
q3bBr1/3n4/1Bnr1qB1/Q3N1Br/1RN3Pb/pBRp3k/B2b4/1K2r2q w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 Kf7 f4 Ke6 c4 Kf5 Kc2 a5 b4 e5 g3 d5 b5 h5 c5 d3+ Kb2 d2 g6 a3+ Kc2 a4 b6 d4 b7 a2 c6 h4 c7 h3 g7 h2 Bg2 a3 Qe1 Kg4 f5 d1R f6 e3 f7 e2 Bg5 e4 Qa5 e1B Nf3 e3 Nbd2 e2 Nc4 Nc6 b8B Bd7 c8B Nf6 g8B Rh5 Rc1 a1Q Ba7 Bh6 f8B Qe8 Rg1 h1Q Bb6 Bf2 Bh7 e1R Bg6 Qd8 Ba6 Be8 Bb5 Nd7 Ba4 Qc3+ Kb1 Rd2 Bf1 Qf6 Rg2 Kh3 g4 Bh4 Nfe5 Qcf3 Bfd3 Rdd1 Rb2 Qd5 Rb4 Rb8 Qa6 Qa5 Qb5 Qa8 Qa5 Rb7 Be3 Nc5 Ka2 Rg7 Rc3 Nd7 Bb1 Rg8 Bb3 Rd3 Bf2 Bd2 Be3 Bc1 Bg5 Rde3 Nf3 Re6 Nfe5+ d3 Ka1 Rd6 B1a2 Qe7 Kb1 Qg7 Qd5 Qf6 Qa5 Bd2+
RNbrNB2/4Nk2/2Rb1qNb/Kq1n2q1/4p3/p2r2P1/Qq1N3n/rB3N2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 d5 b4 e5 c4 h5 f5 h3 c5 e3+ Kc2 h4 Kb3 d3 Ka4 d4 b6 e2 c6 e1B b5 h2 f6 e4 b7 h3 g3 d2 b6 d3 c7 Kf7 Ra3 Nc6 b8N Bh6 b7 Nce7 Kb5 a4 Qb3+ Nd5 Qa2 d1Q Nc6 d2 b8N Qc2 Ne7 d1R Nf3 Bb4 Bd3 Qb2 Nbd2 Qd6 Rg1 h1Q Nf1 h2 Bb1 Rd3 N3d2 Qd8 Rc3 Qf3 Rc6 h1Q Rg2 Qhh5 Rh2 Qb3 Ba3 Bd6+ Bb4 Qb2 Rh1 Kf8 f7 Ngf6 Rh3 Kg7 f8N Ng4 Nfg6 Qff6 Rh2 a3 Rf2 Qfg5 Rf8 Nh2 Rg8+ Kf7 Re8 Ba6+ Ka5 Qgf6 Rg8 Qe8 c8N Qhg5 Nf5 Rh7 Nce7 Qd7 Ng7 Bc8+ Na6 Rh8 Rd8 Rb8 Ne8 Rb7 Nb8 Rc7 Ra6 Rc1 Ra8 Qdf5 Rd7 Rd1 Rc7 Qd7 Rc6 Rc1 Bc2 Ra1 Bb1 Rf8 Ng7 Rd8 Ne8 Qb7 Nf5 Bf4 Bf8 Bd6 Nfe7 Q7b5#
B4rkn/Q1Bq1b2/1Kq1pR1B/7B/p1R1nq2/1Nq2rB1/P3B1Nb/r4n2 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b3 g5 b4 gxh4 bxc5 d5 Qe2 dxc4 Qf3 Qd3 Qd1 Qd8 Ke2 Kf7 Ke3 b5 f4 a5 d4 h5 g4 c3 g5 a4 f5 h3 d5 h4 Kd4 c2 c6 h2 Kc5 b4 c7 h3 f6 e3 d6 e2 d7 e1Q Qd4 b3 Qh4 b2 Be2 Na6+ Kb6 Nc5 Nd2 b1R+ Nb3 Nh6 g6+ Kg8 g7 Nf7 Qf2 Ne4 Bh6 c1Q Nf3 Qf4 Nh4 Qc3 Rf1 h1N Ng2 h2 Qg1 Qe8 d8B Be6 c8B Qd7 Bc7 Nhg3 Bb7 h1Q Rf3 Rd1 Rc1 Nf1 Qe3 Ra5 Ba8 Rf5 Rc2 Ra1 Qc5 Qe1 Rc4 Qc3 Qa5 Qh5 Qa7 Qh1 Bg5 Rh3 Bh4 Nh8 Bg3 Bf7 Rf2 e6 Rf3 Bd6 Rf2 Be8 f7+ Kh7 f8B Bf7 Be7 Kg8 Bg5 Be8 Bh6 Rf8 Rf3 Bf7 Rf2 Qfe5 Rf6 Qf4 Be1 Rf3 Bg3 Qh5 Bg5 Kh7 g8B+ Kg7 Bh7 Qh1 Bg6 Kg8 Bh6 Qh5 Qa6 Qd5 Bh5 Qfc1 Bh4 Bh2 Qa7 Qf4 Bg3 Q5c6+
K1b1n3/1nn1RP1q/k1Bb4/1q1BB2b/2B2np1/1NR1r2Q/N2r2pB/1r3B2 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Ke2 g5 Ke3 d5 Kd4 Kd7 a4 Kc7 f4 b5 c4 Kb7 h4 g3 f5 b3 a5 b2 c6+ Ka6 Kc5 b4 c7 b3 h5 d4 h6 d3 f6 e3 h7 g2 f7 e2 Rh3 e1N Qe2 d2 Nf3 d1B Qd3 Nf6 Nc3 b1Q Na2 b2 Bf4 Nc2 Bh2 Qd7 Nd4 Ne8 Nb3 Nd4 Rg3 Rg8 h8B Bh5 Be5 g4 Qf3 Qd3 Re1 b1R Re3 Qa4 Kd5 Rg6 c5 Nd7 c6 Nc5 Re4 Qab5 Rh3 Bb7 c8B Re6 Bd7 Bc8 c7 Ra7 Re2 Qh7 Bc6 Rb7 Re4 Rb2 Qg3 Rd2 Qh4 Rb8 Rc3 Rb6 Qh3 Rb7 Bf6 Rb8 Re1 Re3 Bg7 e5 Re2 e4 Bge5 Bb7 c8B Bd6 Be6 Bc8 Re1 Ka7 a6 Nb7+ Rc5 Kb6 a7 Ka6 a8B Rg3 Rc1 e3 Rc3 e2 Re3 e1N Re4 Qd3 Rc3 Re3 Ba4 Ne2+ Kc6 Nf3 Bd5 Ng5 Bb5+ Ka7 Bbc4 Nf4 Bf6 Qb1 Re7 Nge6 Be5 Qb2 Kb5 Qa3 Na1 Qc5+ Ka4 Kb6 Ra3 Nbd8 Rc3 Bc7 Bab7 Ka7 Bbc6 Rb1 Nb3 Qb6 Bd7 Bd6 B7c6+ Qc7 Kb5 Nb7 Bd7 Ka8 Ka6 Qc5 Bdb5 Kb8 Bbc6 Qb4 Bd7 Kc7 Ka7 Qb5 Ka8 Kb6 B7c6 Ka6 Bf6 Ree2 Bh8 Re3 Be5 N6c7+
Rq6/R3Kp2/7B/2nRqBpb/1Rb2Nr1/R1Q4r/nr2Pb1N/k2b1nR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 c4 Ke5 b4 g5 b6 d5 c5 a5 h5 a4 c6 g3+ Kf3 a3 h6 g2 b7 d3 b5 Kd4 c7 a2 h7 d2 b6 Na6 b8R Nf6 b7 Ne4 Ba3 Nec5 Qb3 d1B Nc3 Nb4 Qb2 Bb3 Qc1 Ra5 Ra8 Bc4 b8R Rb5 Ra7 Bb7 Kg4 f3 Kf5 f2 Rba8 Qb8 Kf6 Bc6 Rb1 a1Q c8R Na2 Rd8 Rb2 Bb4 Bg7+ Ke7 Bd7 Ra3 Bg4 R8a7 Bh5 Qc2 Be5 Rdd7 Bg3 Nf3+ Ke3 Nh2 Kd4 Qc1 g1R Bh3 f1N Bf5 Bf2 Rd6 Rg4 Rg1 Ke5 Qc2 d4 Nd5 d3 Nf4 d2 Rd4 d1B Qc3 Rd8 h8R Rd6 Qc1 Rb6 Bc3 R6b3 Bb4 Rh3 Rdd3 Qb5 Rha8 Qb8 Rdd7 Bd5 Rd8 Kd4 Bc3+ Kc4 Bg7+ Kb4 Bh6 Bc4 R3a6 Kb3 Rd5 Nc3 Qe3 Qa5 Qe5 Na2 Qc7 Qc3 Ra4 Qd4 Rb4+ Kc3 Ra1 Qe5+ Ne6 Nc1 Qa5 Ra2 Ra4+ Kb2 Qe1 Raa3 Rb4+ Rab3 R1a3 Na2 Qd2+ Ka1 Qe1 Qg7 Nf4 Rb2 Qc3 Qge5+
k1N1R3/2nN1pQr/2rbbBN1/pNR2b2/2nN3q/2q2K1P/n1B5/1N2n2r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 b4 g5 e4 d5 c4 Kd7 b6 Kc6 e5 Kb7 e6 g3+ Kg2 d3 e7 d4 e8N g4 c5 d2 h3 d3 b5 Nh6 Nf6 Bd6 Be2 f3+ Kf1 g2+ Kf2 g3+ Ke3 f2 Nh5 f1N+ Kf3 Ne3 Bb2 Qh4 Bf6 Rh7 Nf4 Nhg4 Ng6 Ra6 c6+ Ka8 c7 Bf5 c8N Nf2 Ra4 Be6 Re4 Nc4 Qa4 d1B Qa1 Bb3 Bd1 d2 Ne2 g1R Nd4 g2 Bc2 Bf5 Re8 Nd3 Qb2 Rd1 Rhe1 g1Q R1e5 Rc1 Rc5 d1N Qa1 Nc3 Qb2 Na2 Qc3 Nc6 b7+ Kb8 Qa1 Ncb4 Qc3 Rc6 Qa1 Kc7 b8N Kb7 b6 Nd5 Nb5 Qge1 Nd7 Nc7 Qb2 Qc3 Qa1 Ka6 b7 Rh1 b8N+ Kb7 Qb2 Ka8 Qa1 Ra6 Nc6 Rb6 Ncd4 Rc6 Nde5 Nb6 Nd7 Bbe6 N1a3 Nc4 Qg1 Qb3 Nb1 Qc3 Qg5 Rh8 Qh6 Rh7 Qg7 Ne1+
qrQB2N1/1rqnP3/4B3/1RB2BB1/Bb2bR2/b5nr/KN3p1p/4n1kb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb3 a5 g5 d3 g6 Kd4 e5 f3 c5 h3 b6 f4 g7 h4 e6 d2 b7 Ke3 b5 Kf2 c6 h2 b6 a4+ Ka2 d4 c7 a3 Nc3 d3 Kb1 a2+ Kb2 h3 Na4 Ba3+ Kb3 Na6 b8B Bb7 c8B Qc7 e7 Nb4 Bf5 Nf6 g8B Be4 b7 Nd7 Bge6 Nc2 Ne2 Ne1 Qc2 d1Q Ng3+ d2 Rb1 a1B Ka2 Bc3 Nb2 Bcb4 Bb5 Ra7 Qc4 Qa4 Nh5 d1R Nf6 Rd3 Ng8 Re3 Rg1 h1B Rg4 h2 Rh4 Qa6 Ba4 Kg1 Qc5 f2 Qc4 f3 Rf4 Ra8 Ba7 f1N b8B f2 Bc5 Rhh3 Bba7 Rb8 Bab6 Ng3 Ba5 Qcc6 Bd8 Qaa8 Qa6 Re2 Qc8 Qc7 Rh4 Re3 Nd1 Ba5 Rg4 Rd3 Bg5 Bd2 Rf4 Rdb3 Rb2 R3b7 Rb5 Bc3 Nb2 Bcb4
5R1n/1qpKNRn1/q1P4N/bR3pRR/k6q/1b1rr2b/1nR4Q/B2b3B w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 h5 Ke4 a5 Kd5 f5 d4 e5 g4 h3 c4 h4 b4 a4 g5 f2 g6 a3 c5 h2 g7 e4 b6 h3 b5 a2 b7 e3 b6 e2 Qc2 e1N Bb2 Ra3 Bg2 f1B Nf3 Nc6 b8R Nd3 b7 Nh6 g8R Nf7 Nc3 Qh4 Rg5 Ncd8 Rc1 Ne6 Ba1 Nb2 Qd2 Rb3 Rc2 Ng7 Ra8 Bd6 b8R Re8 Rb5 Re3 Rab8 Ba6 Rf8 Nh8 Rf7+ Be7 Qe2 Rd3 Ke5 Kc6 Nd5 Bc8 Qd2 Be6 Qe2 Bd6+ Kf6 Bf4 Ke7 Bd2 Qf2 Ba5 Qg1 Re3 Kd8 Bb6 Ke7 Rbd3 Ne5+ Kb7 Be4 Ka6 Ng4 Ba5 Nh6 Be2 Kd8 Bd1 Ne7 Bb3 d5 Bb6 Rb4 Ka5 Rb5+ Ka4 d6 Ba5 d7 Nh5 Qg2 Ng7 Re1 h1Q Qh2 Qg2 Rh1 Qf3 Kc8 Qg2 d8R Qf3 Qd6 h2 Rdf8 Qg2 Ba8 Qge4 Kd7 Qb7 Rhg1 h1B Rh5 Bhf3 Rgg5 Bfd5 Qh2 Bg2+ Qd6 Qa7 Bb7 Bh3 Bh1 Qb7 c6 Nc4 Bf6 a1Q Bc3 Qa2 Ba1 Nb2 Kd8 Bc4 Kd7 Bd5 Qh2 Qac4 Rb6 Qca6 Rb5 Bb3+
R6r/p2q2k1/4bNbN/1R1r1rn1/KPpR3q/b3R1Bn/1n1Q3R/1B1r1R2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 g4 c5 e4 f5 d4 Kf7 Kd2 h5 Kc2 h3 b3 c3 b6 f3 e5 h4 g5 h2 e6+ Kg7 e7 f4 e8R f2 d5 h3 d6 f3 g6 Na6 b7 Be6 b8R Qd7 Rb5 Nf6 Nd2 Ne4 Bd3 f1B Ne2 f2 Nd4 Ng5 Ne4 Rd8 Qd2 c4 Nf6 Bg2 Bb2 Bf3 Raf1 Nc5 Kc1 Be2 Bb1 c2 Ba3 Be7 Kb2 c1R Bb4 Bh5 Ka3 Nd3 Ka4 Rd1 Bc3 Kh6 g7 Bg6 g8R Bf8 Ba5 Be7 Bc7 Bf8 Rhg1 h1Q Rg2 h2 Bb8 Be7 Rgf8 Kg7 Bc7 Qc8 d7 Ba3 b4 Qb7 Bg3 Qc7 Re1 f1R Re3 Rf5 Rf2 Qe4 Rfe2 h1N Rh2 Qh4 Rf7+ Kh6 Rg8 Nhf2 Rff8 Rb8 d8R Nfh3 Rd6 Qg7 Rf7 Rb6 Ra8 Rc6 Rff8 Qd7 Rf7 Rcc5 Rff8 Be8 Rf7 Rfd5 Nf5+ Kg6 Nh6 Rf5 Rd4 Rcd5 Rf8 Kg7 Re1 B8f7 Rfe8 Bg6 Rf1 Bg8 Ree1 Be6 Re3 Nb2+
rrr2N2/p2RbqR1/B6K/2B1nQNb/3P1p2/1n1B2Bb/2n1r1n1/B3B1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 b4 Ke6 e4 Ke5 h4 Kd4 h5 g5 b6 c5 e5 f5 d3 c3 b5 f3 Kg3 c4 b7 c2 e6 c3 e7 f2 e8B Qc7+ Bf4 c1R h6 c2 h7 Nf6 b6 Nc6 b8B Ne5 b7 Qf7 Na3 Be7 Nh3 Nd5 Bd2 Nb4 Be1 Ke3 Nb5 Bd7 Be2 f1B Nc7 Bg2 Rf1 Bf3 Rg1 Rb1 Bf1 c1N Ne6 Nc2 Nf8 Nb3 Bd6 Be2 b8B Rg8 Kg2 g3 h8B g4 Ng5 Be6 Bb5 Rb2 Nfh7 Rc8 Nf8 Bd7 Qb1 Be6 Kh1 g2+ Kh2 g3+ Kh3 Bh5 Kh4 Ra2 Ba6 Rb2 Bc3 Kf2 Ra4 Ra2 Rd4 Rb2 Bc5 Ra2 Rh1 g1R Bf6 g2 Rd7+ Ne3 d4 Re2 Ba1 Nc2 Rh3 Rh1 Bc7 Rg1 Rg3 f4 Ba5 Bh3 Bd3 Rh1 Be1+ Kg1 Ba6 Na3 Qf5 Nc2 Rg4 Re3 Bfb5 Re2 Bd3 Kf1 Ngh7 g1N Kg5 Ngf3+ Kh6 Na5 Bf2 Nh4 Rg7 Ng2 B6h4 Rg1 Bhg3 Rh1 Be1 Rg1 Bec3 Rh1 Bh2 Kf2 Ng5 Rb1 Bd2 Rbb8 Bg3+ Kg1 Bde1 Nb3
4b1qq/2RRrpq1/R6q/n1RRQK1P/1krRp2N/8/rB1n1N1b/rB6 w - - 0 1 illegal: No proof kernel
1b1r3B/2pKBk2/r1n2B2/2r2p2/R2BR2B/3r1B2/1NP2qN1/qQ1q1bbb w - - 0 1 illegal: No proof kernel
2R1R2b/N1N4Q/3rp2B/Np1NqqrB/kr4P1/4n1n1/2n1p1q1/2N2bKN w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 a4 c5 g4 h5 f4 b3 Kf2 b2 d6 Kc6 f5 c4 d7 c3 f6 h3 a5 c2 a6 h2 f7 h4 a7 h3 Nc3 b1R Nce2 Kb5 d5 e6 d6 Nc6 Bh6 c1Q Qc2 Qa5 d8N Nd4 d7 Bg7 f8N Ne7 Nc6 Nef5 d8N Rb4 Nd7 Qb2 Nb6 Ne3 Nd5 Rg8 Rc1 Bh8 Qb1 b6 Nb7 Ndc2 Ng3+ Ka4 Bd3 Rg5 N1e2 Qe5 Rhf1 h1N+ Kg1 Qb5 Nba5 Ba6 Rf8 Rd8 a8N Rd6 Na7 Qc5 Rc8 Bc4 Nac7 b5 Rf1 Qf5 Rf4 Qd4 Nc1 Qde5 Nf1 Ng3 Rf2 Qg6 Rff8 Qgf5 Rfe8 Ng2 Nh2 e3 Be4 Bf1 Bd3 Qff6 Bg6 e2 Bf7 Nge3 Bh5 Na3 Qh7 Qff5 Nf3 Nac2 Nd2 Qd3 Ne4 h2+ Kf2 Ngf5 Ng3 h1Q Na8 Qh3 Nh1 Ng3 Kg1 Qdf5 Nac7 Qg2#
N1rR1R2/3rrnp1/1bq1qR2/R4RPK/3n1R2/1b1p4/2qk2pB/1Bn1N1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 g5 cxd4 Qd3 Ba3 Qf3 Bf8 Qg4 hxg4 Kf2 Ke7 e4 Ke6 b4 Ke5 c4 d5 h4 f5 c5 a5 b6 a4 c6 g3+ Kf3 a3 b7 g2 h5 a2 c7 d3 b5 Kd4 b6 d2 h6 d1R h7 Qf6 e5 Re1 e6 Bc5 e7 Qe6 e8Q Ra7 Nd2 Kc3 Nc4 d4 Bd3 Nh6 Rh4 Nf7 Bb1 Nc6 b8R d3 b7 Bb6 Qe7 Bd7 Qc5 Rc8 h8R Re4 R8h6 Nd4+ Kf2 f3 Kg3 f2 Rf4 f1N+ Kh4 Ba4 Kh5 Nd2 Rf6 Bb3 Nf3 Qc6 Ne1 Re7 Ra8 Qe6 b8R Rd7 Re4 f4 Rf5 f3 Ref4 Rb7 Ra5 f2 Ba3 f1Q Ra6 Nc6 Qg1 Qf2 Bd6 Qc5 Ra5 Nd4 Rf6 Qc6 Raf5 Ne2 Ra8 Nf3 Raa5 Nfd4 Rad5 Bc5 Nb6 Kd2 Na8 Bb6 Be5 Re7 Rd8 Nc1 Rf8 Rcb8 c8R Rbd7 Rcd8 Rc8 Rf1 Qc2 Bh2 Qcc6 Bc2 Ba4 R1f4 Bb3 Rb1 a1Q Ra5 Ba2 Rbb5 Qb2 Bb1 Qbc2 Rbf5 Bb3
2n2q1N/N1p2B1k/r1N1NKp1/rb1b1n2/1R1N4/2bnp2q/Rr4P1/1Q4NB w - - 0 1 illegal: Other
1K1B1q2/NBBpB3/RQ1r2b1/8/1Rp1rkBp/r4nbP/6nN/Brb3r1 w - - 0 1 legal: proof: g4 b5 a4 e5 axb5 f5 d4 exd4 c3 dxc3 Be3 fxg4 Bg5 Ne7 Bc1 Ng8 b4 Ke7 f4 Ke6 Kf2 Kf5 Ke3 c5 b6 h5 b7 a5 h3 g5 b5 c2 b6 h4 Nc3 g3 Qd4 g2 Bb2 c1R Nf3 g1R Nh2 g4 Nb5 g3 Bg2 a4 Na7 Na6 b8B a3 b7 a2 Bc7 c4 b8B Rgd1 Bb7 g2 Qb6 g1R Kf3 Qf6 Bd8 Ne7 Bbc7 Bh6 e3 Rd6 e4+ Kg6 e5 Kf5 e6 Rb1 Bd4 Nd5 e7 Ne3 e8B Nc5 Bh5 Nb3 Bb2 Ng2 Bg4+ Kg6 Ke4 Nd4 f5+ Kg5 Bc3 Nf3 Be5 Qe7 f6 Re8 f7 Qf6 f8B Re7 Nb5 Ra3 Na7 Re8 Bd5 Bb7 Bfe7 Rb2 Rb1 a1B Bc6 Rb5 Rb4 Bb2 Bc3 Bc1 Ba1 Ba8 Bb7 Bf4 Ra4 Rbb1 Rb4 Be5 Bc6 Bg3 Bb7 Rc6 Kd5 Rd6+ Kc5 Kf4 Kb5 Qf8 Kc5 Rgc1 Re1 Rd1 Re6 Rg1 Kb5 Re3 Ka6 Bg5 Bc8 Be4 Rg6 Bc2 Kb7 Ra3 Kb8 Bh6 Bb7 Bf5 Rg5 Bg6 Ra5 Bg5 Ra6 Bh6 Bef6 Re4 Be7 Bg7 Be6 Bb2 Bg4 Bc1
1nqRRB1q/2p2r1b/2Q1pr2/B2N3B/KBq4b/2P4q/1n2qNpk/1B1B4 w - - 0 1 legal: proof: d4 a5 b4 axb4 d5 e6 dxe6 Ra4 Qd2 Ra6 Qd1 Ra8 g4 h5 e4 hxg4 e7 Nc6 e5 Nb8 e6 fxe6 Ke2 Kf7 Kd2 Rh5 Ke1 Rh8 e8B+ Kf6 Kd2 Kf5 a4 Kf4 h4 d5 h5 b5 a5 g5 c3 b3 f3 Kg3 h6 b2 Kc2 b4 Kb3 d4 f4 d3 h7 d2 f5 Nf6 a6 Bb7 a7 Nfd7 f6 Ne5 f7 Nd3 Nf3 Qc8 Ne1 Be7 f8B Be4 Qe2 d1Q+ Nc2 Bf6 Nd2 b1Q+ Ka4 b3 Ra2 b2 Bh5 Be7 Ra3 Qa2 Bh3 Rg8 h8B b1Q Bd4 Bh7 Bb6 Rg7 Qe4 Qe2 Rd1 Kh2 Nb4 g3 Qc6 g2 Ba5 g1Q B3g4 Qge3 Ne4 Rf7 Nf2 Qh3 Nd5 Bf6 Bf5 g4 Bf4+ g3 B4d6 Qc4+ Bdb4 g2 Ra1 Ne1 Rd2 Qc1 Bb1 Nd3 Raa2 Qh1 Ra3 Nd7 Ra1 Rb8 a8B Bh4 Bb7 Ra8 Raa2 Nb8 Ba6 Qc5 Bc4 Rf6 Bb3 Qc4 Bd1 Ra6 Qb7 Rd6 Qc6 Rd7 Rab2 Nf4 Rd4 Nd3 Rd2 Rg7 Rg4 Rgf7 Rg8 Qe5 Bd6 Qe1 Re8 Qe2 Bc5 Rf3 Be7 Qh8 Bf8 R3f6 Ne7 Nc1 Rdd8 Nd3 Nd5 Nb2+
Q1nR1bR1/2K1b3/1nB3N1/1NR1p3/3pP1b1/R2bp1k1/rR1n4/BR1q1q1r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 g5 Qe2 gxh4 Qd2 f4 Qe3 fxe3 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kd5 Kf4 b4 e5 g4 h5 c4 a5 g5 a4 b6 d3 c5 d2 g6 d1B b7 d6 g7 a3 b5 a2 b6 h3 c6 h2 c7 h4 Bb5 h3 Na3 Rh4 Bc6 Nd7 b8R Bg4 b7 Be2 Nf3 Bd3 Nb5 Ne7+ Ke6 d5 Kd6 d4 g8R Rh5 Rb1 a1B Bb2 Ra2 Nh4 Rh7 Bc3 Bb2 Ng6+ Kf3 Rhc1 h1Q Ra8 h2 b8R Qd1 Ra3 h1N Rb7 Kg4 f4 Ng3 f5 Nf1 f6 Nd2 f7 Rh1 Rc2 Bc1 Ba1 Kg3 Rc5 Qe8 Rb8 Nb6 Rb2 Bh3 c8Q Bg4 Kc7 Qf1 Qb7 Nec8 Qa8 Qe6 Rb1 Qb3 Rb7 Be7 f8R Qbd1 Rd8 Bf8 Rab3 Ba3 Ra7 Bb4 Raa3 Be7 R3b2 Bf8 Rc4 Bbe7 Rcc3 Kg2 Rc5 Kg3
b1r2BK1/b2NnB1N/n1R3b1/kpQ1qp2/4q2N/3N1rp1/1P1N1nb1/4R2N w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 c5 d4 cxd4 a5 h5 gxh5 Qxa5+ Nd2 Qa4 Nb1 Qa2 Kf2 Kd8 Kf3 Kc7 Kg4 Kb6 Kg5 d5 h4 f5 Kg6 a5 Kf7 g5 e4 f3 c4 g4 h6 g3 h5 d3 c5+ Ka6 c6 b5 e5 a4 h7 f2 h6 d4+ e6 a3 c7 d2 Bc4 f1B e7 d3 e8N Ra7 Nh3 Be7 Nf6 Bb7 c8N Ba8 Nf2 Ka5 Qc2 d1B Nb6 d2 Nbd7 Bfg2 Re1 Na6 Nh1 Bc5 Kg7 Be2 Bf7 d1N Nd2 Bh5 Rb1 Bg1 Qc5 Ne7 Ra1 Re8 h8N Rc8 h7 Qc4 Ng6 a2 h8N Qe4 Nh4 Bg6 Nh7 Nf2 Rb1 Nd5 Ra1 Bh5 N8g6 Rac7 Nf4 Bg6 Rb1 a1Q Nd3 Qaa4 Ra1 Rc6 Ra3 Qe2 Rc3 Qae4 Nf1 Rd6 Bh6 Q2e3 Nd2 Q3f4 Be8 Qfe5+ Kg8 Rdc6 Bf8 R6c7 Qa7 Rc4 Rc2 Rc3 Bf7 Rb3 Rc6 Rc3 Nc1 Rf3 Nd3 Ng4 Qb8 Ba7 Qd6 Nf2 Qc5 Ne7+
1r1B1q2/4q2B/1bpb2B1/B2N1bN1/qr2n2R/Qp1pPB2/3k1n2/BK4bR w - - 0 1 illegal: No proof kernel
R2bn1n1/2n3q1/1rp1krN1/RRP1qN1R/3np3/R2B4/1bpR2QK/2Bq4 w - - 0 1 illegal: No proof kernel
KnR2qnb/2Br2p1/1B1rp3/1B3Nqp/1B6/q3bP2/Bkb2bR1/4BNQ1 w - - 0 1 illegal: Other
bN6/Rq2Npp1/pN1kn1B1/Rrn1bK1B/N4NPr/5Q2/2q5/1bq2N1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Be3 cxd4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kd3 d5 e4 g2 c4 f3 b4 f2 h4 Qa5 h5 Ke6 b6 Nc6 e5 Kd7 c5 Bd6 b5 Rh6 b7 Re6 b8N+ Ke7 h6 Ba6 h7 Rf6 h8N Bb7 e6 Rf4 b6 Nf6 Nf3 g1Q Rh5 Qb4 Nfd2 Be5 Qf3 Nd8 c6 Ne4 c7 Kd6 e7 Ne6 e8B Rf5 Nd7 Rd8 Ra5 Ba8 b7 a6 b8N Qb3+ Nc3 Qb7 Nb6 Qg2 Be2 f1Q Ng6 Qc1 Bb5 Rh8 Nf4 Rg5 Rh2 Rh4 Nf1 Rgh5 Bd1 Qa2 Bc2 N4c5+ Ke2 Qab2 Nca4 d3+ Kf2 d2 Kg3 d1B Re2 d4 Bbd3 Qbb1 Bg6 d3 Re3 Rf5 Bh5 d2 Re2 Rg5 Bcg6 Bc2 Re1 d1B c8N+ Kc7 Ne7 Kd6 Re4 Qb3 Rb4 Bb1 Rc4 Qbc2 Rc3 Nd7 Rc8 Ndc5 Rc7 Qbe4 Ra7 Qb7 Qh1 Bf3 Qg2 Bd5 Qf3 Rf5 Qg2 Ba1 Nd3 Rf4 Qe2 Re4 Kf3 Be5 Nf4 Rb4+ Qe4 Q1b2 Ke3 Rb5 Qg2 Nd3 Qe2 Bh1 Qf3 Rd5 Ke4 Rb5+ Kf5 Qbc1 Qe3 Ndc5+ Qe4 Nd3 Qf3 Ndc5+
3N1q1K/N4B1n/1P2rkNR/BpR1n3/pbq5/3p1N1p/b2b2Q1/N2nNr2 w - - 0 1 illegal: No proof kernel
q1rR1B1R/1B2n1p1/3bBB2/7p/pB2Qr1N/p3nnB1/PKn5/1bNr2k1 w - - 0 1 illegal: No possible last move
1R1b3K/1B5N/N3npNq/1R1P1Npr/1N1q3r/rQ3rp1/pn2bN2/k3B3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Kd6 b4 Ke5 h4 Kd4 h5 g5 h6 a5 h7 c5 b6 f6 b7 f3 Kg3 a4 e5 a3 e6 a2 b5 f2 b6 c3 e7 c4 e8N c2 Ng7 c3 Nh3 Nh6 Ba6 f1R Nf2 Ba3 Nf5+ Kc5 d4+ Kb4 Bd2 Kb3 Be1 Nc6 b8N Kb2 b7 c1R Nd7 c2 b8N Be7 Na3 Ne5 Bb7 Nc4 Nf8 Nf7 Na6 Qd7 Rh3 Nd8 d5 Ne6 Rh6 Qa4 Rg6 Rh1 Rg8 Bd8 Qd3 Rb1 Qe3 c1Q Nc2 Rh5 Ncb4 Qcc2 Qf3 Rd1 Rc1 Qb1 Qb3+ Ka1 Rc3 Nb2 Rc5 Qe4 Rb5 Qd4 Rg6 Rg8 h8N Rg7 Rh6 Rh7 Nhg6 Rh8 Nh7 Rd3+ Kg2 Rh4 Rh5 g3 Rh6 Rg4 Kh3 Rf3 Rh4 Re4 Rf4 Ra7 Kg4 Bd7 Kh5 Be8 Ra5 Bb5 Kh6 Be2 Rh4 Qe8 Rh5 Rh4 Rb5 Nf4 Kg7 Qe6 Ne3 Qh3 Nf5 Ra8 Nhf8 Rh6 Nh7 Ne6+ Kh8 Qh2 Nc5 Ra3 Nca6 Rh3 Rh4 Rh5 Re4 R3h4 Re5 Nf4 Re8 Ne6 Rg8 Ba5 Ra8 Bd8 Rb8 Rh6 Nfd3 Rg4 Bc6 Qh5 Nf2 Rh4 Nge7 Qg6 Ba8 R6h5 Bb7 Qh6 Ng6 Rg4 Qc3 Re4 Qb3 Reh4
bq1B1q2/B2q1bb1/3R2pr/B3pQ2/4BN1p/kqn3Rn/1p2P1N1/2BK1B2 w - - 0 1 illegal: No possible last move
6rn/npR2qBR/k4p2/pN1Q1b2/nBRp1Rp1/2nK2R1/Pb5N/rR6 w - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 b4 g5 Bh3 gxf4 bxc5 exd4 g5 Na6 Be6 Nb8 Bg4 hxg4 Kd2 a5 e4 d5 h4 Kd7 c4 Kc6 g6 d3 e5 f3 e6 f2 e7 Rh6 e8R Ra6 h5 Nf6 g7 Qb6 g8R Bg7 Rgf8 Ng8 Re3 Rh8 h6 Bf5 h7 Qc7 Nf3 Nh6 Nh2 Rb6 Ba3 Bb2 Rg3 Rg8 h8B d4 Bg7 Qd7 Nc3 Kc7 Qf1 Nc6 Bb4 Na7 c6 Qe8 Qg2 f1N+ Kd1 d2 c5 Qd7 Ke2 d1N Rb1 Nd2 Qd5 Ne4 Kd3 Qe8 Nb5+ Kb8 Nd6 Ndc3 Nb5 Na4 c7+ Ka8 c6 f6 Rhf1 Nf7 Rf4 Nh8 Rf7 Be6 Re7 Nec3 Rd7 Qf7 Re7 Rb8 c8R Bd7 Rc7 Rg8 Re5 Bc8 Rh5 Be6 Rh7 Kb8 Rd7 Ka8 c7 Bf5+ Kd2 Re6 Re7 Re1 Rd7 Rb8 c8R Rg1 Rc4 Rg8 Rdc7 Rf1 Rc1 Kb8 Rc2 Rb1 Rc1 Ra1 Rb1 Nc8 Na3 Ka7 Nb5+ Ka6 Bbf8 Bd7 Bb4 Na7 Kd3 Bf5+
rBB2N2/4RN2/1k1r2Q1/q1bRp2K/2qp2q1/3pP2p/2pq1R2/2nR1RRb w - - 0 1 illegal: No proof kernel
r2k1r2/2bn3n/3B2b1/1R4r1/NRr1BrR1/3RP1Q1/b1b2N2/B1Kr1B2 w - - 0 1 legal: proof: b4 a5 h4 e5 f4 exf4 c4 d5 cxd5 g5 bxa5 gxh4 a4 b5 a6 Qf6 a5 Qb6 axb6 b4 b7 Nd7 b8R Nxb8 d4 f5 Kd2 c5 g4 h5 d6 c4 d7+ Kd8 g5 f3 d5 b3 a7 c3+ Ke1 h3 e3 f2+ Ke2 c2 Kd2 h4 g6 h2 g7 b2 Ra4 f4 Bg2 f1B Re4 f3 Rc4 h3 Rb4 f2 Qg4 Bd3 Qh4+ Nf6 g8R f1R Qg3 Nh7 Nc3 b1B Rgg4 Bd6 Ba3 c1R Na4 Rf4 Bf1 Bg6 Bb2 Bc7 Ba1 Rc3 Rb5 Rd3+ Kc1 Rhf8 Rb4 Rd2 Rb5 Ke7 d8R Be6 Rd7+ Ke8 d6 Bea2 Rb4 Bbc2 Rd8+ Kf7 d7 Ke7 Rb5 Nc6 Rdb8 Ne5 d8B+ Ke8 R8b7 Nd7 Be7 Rc4 Bd6 Kd8 Rb4 Rff4 R7b5 Rf8 Nf3 Rcf4 Rg1 h1R Ne1 h2 Nd3 Rc4 Rg2 Rg1 Nf2 h1R Rd4 Rh5 Rd3 Rgh1 Rg1 R1h4 Rg2 Rg5 Rg1 Rc8 a8B Rhf4 Be4 Rb8 Qf3 Rc8 Rg4 Ra8 Qg3 Rd1+
2b1KBB1/P1Q2bN1/5N1N/q1B3R1/3p4/rbr1rNRb/3q4/Bn3k1r w - - 0 1 legal: proof: b4 f5 d4 c5 e4 cxd4 exf5 g5 h4 gxh4 a4 a6 b5 axb5 a5 Bh6 Bxh6 Nc6 Bc1 Ne5 Qf3 Ng4 Qxg4 Rb8 Qd1 Ra8 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 h5 c4 e5+ Kf3 e4+ Kf4 h3 g4 d3 a6 h4 f3 e3 c5 b4 c6 b5 c7 d4 Qe2 d2 Qh2 d1Q Nd2 e2 Bb2 e1R Ra3 b3 Ba1 b4 Bc4 Ne7 Bg8 b2 a7 b1B Rd3 b3 Re3 Be6 c8N b2 Nd6 Qa5 Rd3 Re3 g5+ Kg7 f6+ Kg6 f7 Kh5 f8B Bc2 g6 b1B g7 Bcb3 Nf5 Rc8 Qg3 h2 Ne4 Nd5+ Ke5 h3 Kd6 Rc3 f4 Qd2 Nf3 Bc8 Be7 B1a2 Rg1 h1B Qh2 Bg2 Nf6+ Kg6 Bf8 Rh4 Qg3+ Rg4 Be7 h2 Bf8 h1R Be7 Ba6 Kd7 Bh3 Ke8 Bc8 Qh2 Rg3 Rg2 Nb6 Rg1 Bbe6 Bc5 Ra3 Rb3 Na4 Rb5 Bab3 Rg2 Rg5 Rg4 Nc3 Rg3 Qa2 Qc2 Nb1 Qc4 Q2d2 Qc3 Qb6 Qa5 Qa6 Qc7 Qaa5 Bd6 Bf1 Nd7 Kh5 Bh7 Qe1 g8N Qac3 Ngh6 Qa5 Bg8 Qed2 Re5 Rc3 Bc5 Bg2 Ne1 Rg4 Ng7+ Kh4 f5 Re4 f6 Ree3 f7 Bf1 f8B Bg2 Rg4+ Kh3 Rg3+ Kh2 Rf5 Kg1 Nf3+ Kf1 Rfg5 Bgh3 Nf6 Bf7+
3b4/1r3Nr1/2R1N1r1/R1pk2r1/2b1b1b1/NBb2B2/3q2qP/N1BKB1Q1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 hxg4 c4 dxc4 f4 e5 b6 exf4 b5 Na6 b7 Ke7 Rxa6 Nf6 b6 Ne4 Ra1 Nf2 Kxf2 Kd7 Ke1 Ke8 b8N Ke7 e4 Ke6 d4 c5 b7 a5 e5 f5 Be2 g5 Qa4 g3 Nf3 g2 Rg1 g4 Qa2 g3 Nd7 a4 b8B a3 Qb3 a2 Nbd2 Be7 Rf1 g1R Ng5+ Kd5 e6 g2 Nde4 f3 Nf7 f4 Qd3 c3 Qb1 f2+ Kd1 f3 Nde5 Qg8 Nc4 Ra6 Bg3 Rh7 Na3 Bd8 e7 Rg6 e8B Bg4 Ba4 Rg5 Re1 f1B Nd2 f2 Nb3 Qg6 Bh4 Qe4 Bf3 Bd3 Bg3 f1B Re3 Rhg7 Be1 Rh1 Re2 g1R Rg2 R5g6 Rg3 Rg2 Rh3 Rg5 Rh6 Bc4 Rc6 Bfd3 Qb2 R5g6 Qf2 Rhg1 Qe3 Rb2 Qf2 Rg3 Qg1 Rgg2 Rb1 Rg5 Na1 Rb7 Rb5 R5g6 Bb3 Bb1 N1c2 a1B Ra5 Bb2 Na1 Rg3 Be2 Qg2 Bf3+ Be4 Nd6 Ke6 d5+ Ke5 Ndb5 Rg5 d6 Kd5 d7 R5g6 Nd4 Rg5 Qf2 R5g6 Ne6 c2+ Kd2 Bc7 d8N Bc3+ Ke3 Bb6 Nf7 Bd8 Qg1 Qh3 Bb2 c1Q+ Kf2 Qch6 Bc1 Qg5 Bed2 Qg2+ Ke1 Rh3 Kd1 Rh5 Be1 Qf4 Be2 Rhg5 Bf3 Qfd2+
1n2nQ2/k2B1rNB/B2rK3/bb1BRn2/3b1q1R/1RN2r2/1P2b2q/2R3b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 a5 Kg3 d5 Kf4 Kd7 Kf5 Kc7+ e6 Kb6 h4 g5 c4 d3 e4 g3 e5 g2 c5+ Ka7 h5 g4 h6 a4 c6 g3 c7 a3 h7 a2 Qe1 d2 Qf2+ d4 Bc4 d1B Ne2 g1B Qf1 g2 Be3 Qh4 Rh3 Bb4 Nf4 Ba5 Nc3 Ba6 c8B Be2 e7 Nf6 e8B Rf8 Bed7 Ne8 Rc1 a1Q h8R Qa4 e6 f6 e7 Rf7 Rh1 Qh2 Ke6 f5 Nh5 f4 Bd5 f3 Ng7 f2 Bf4 d3 Rh5 d2 Bd6 d1N Re5 Ne3 Bcb7 Nf5 Bbc8 Qg3 Rh4 Qh2 Bcb7 Qe4 Bbc8 Qef4 Bcb7 Nc6 Bbc8 Rb8 b6+ Ka8 b7+ Ka7 Qe1 f1R Qf2+ Qe3 Qf4 Bab5 Qh6 Qg5 Qh8 Bd4 Qf8 Nf6 e8B g1B Bb3 Qgf4 Bd5 Ra8 b8R Rf3 Rb6 Rb8 Ba6 Rb7 Re3 Nb8 Re5 Ba4 Rb3 Rb6 Bdc8 Bab5 Bed7 Ne8 Bcb7 Rh3 Be4 Rf3 Bbd5 Nh6 Bg6 Nf5 Bh7 Rxd6+
r3K1B1/7N/N1nB3q/3qB3/3Rq3/BRnQ2n1/1N2P1bN/k1b1rbrr w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 g4 h5 d4 f3 d6 c4 Kd5 h3 b6 c3 b7 c2 d7 f2 Nf3 h4 Bd2 c1Q Bc3 h2 Bh3 f1R Na3 b3 Rb1 b2 Qd3 Qh6 Nc4 Ne7+ Kd6 Nbc6 b8N Rg8 Na6 Re1 Bb4 Bg7 d5 Bb7 Ba3 Bh8 Rd1 b1N Nb2 Nc3 Rb1 Qa5 d8B Rg7 Rf1 h1Q Bc7 Nf5+ Kd7 Ng3 d6 Qd5 Nh2+ Ke5 g5 Qhe4 Be6 h3 g6 f5+ Bf7 Rgg8 g7 f4 Rh1 f3 Rg1 Rc1 Rd1 f2 Be6 f1B Bb8 Rf8 g8N Rf5 Bc7 Rg5 Nf6 Rg4 Rd2 Re1 Nh7 Bf6 Rdd1 Bg5 Bg8 Bc1 Bb8 Nh1 Ke8 Rg1 Qe3 Ng3 Rd4 Bc8 Qf3 Bg4 Qd3 Bf3 Nc7 Bh1 d7 Bhg2 d8B Qf3 Rg4 Qfe3 Bde7 Qee4 Qc2 Kd4 Na6 Na4 Qd1+ Kc3 Qd2+ Kb3 Qd3+ Ka2 Rh4 Nc3 Rf4 Qec4 Rd4 Qb4 Bd6 Qbc4 Ng4 h2 Be5 h1R Nh2 Ra7 Bbc7 Qe4 Bcd6 Qcd5 Na4 Ra8+ Rb8 Ka1 Nb2 Nd8 Rb3 Nc6+
2R1rkB1/2B1qn2/Q2B2q1/rq2b3/nbN3NR/q2R2P1/r4r2/RK2Bn2 w - - 0 1 legal: proof: f4 b5 b4 e5 a4 exf4 axb5 g5 c4 d6 h4 gxh4 b6 Bg7 b5 Bd7 b7 Bf8 d4 c5 b6 Bb5 cxb5 cxd4 Kd2 h5 Kc2 f5 e4 a5 g3 f3 e5 f4 e6 d5 e7 a4 Bd3 a3 Bc4 h3 Be3 h4 Bc1 a2 Be2 d3+ Kb2 d2 Na3 f2 Qa4 d1R Qc4 f1Q Qc2 d4 Bd2 f3 Rh2 d3 Be3 d2 Qc6+ Nd7 b8R f2 b7 Ra5 b6 Nh6 Qc7 Nc5 Rg2 h2 Qc8 h1Q Bf3 h3 Bd5 h2 Nf3 Qb5+ Bb3 f1R Bf2 Na4+ Kc2 Rde1 Ne5 Re2 Ng4 d1N+ Kc1 Rg8 Qe6 Qg1 Rc8 h1Q Rh2 Qe4 b8B Qg6 b7 Rb2 Rh4 Ne3+ Bd1 Qg2 Qa6 Qf3 Be1 Rff2 Bb3 Nf1 Bc7 Rh8 Be6 Qfb3 Nc4 Qa3 Bf5 Kf7 e8R Bb4 Re3 Qe7 Rd3 Re8 Be6+ Kf8 Bg8 Nf7 Bd6 Bc3 b8B Bb4 Rb1 a1B Bbc7 Qb3 Rh2 Ra2 Rh4 Bac3 Ra1 Qa3+ Kb1 Be5
nn1KBn2/3r1P1b/q1B1R2R/k1r5/6N1/r2q1N2/Bn2R1B1/1qQn2Rn w - - 0 1 illegal: No possible last move, all moves rejected
q1Kn2q1/3r4/Pq2R3/1R3p2/Nn2bBbQ/2R1R3/1BnBrB2/brN2k2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e6 b4 axb4 f5 Ra5 Nh3 Ra7 Ng1 Ra8 g4 h5 g5 f6 Bh3 exf5 Bg4 hxg4 gxf6 Bd7 Kf1 Be6 Ke1 Bc8 Kf2 Kf7 Ke3 Kg6 Kd4 Kg5 Ke5 Kh4 e4 b5 d4 c5 a4 g5 d6 c4 d5 g3 d7 g4 Ke6 c3 a5 b3 e5 c2 f7 g2 a6 b2 d6 g3 Ne2 Kh3 Qd4 g1Q Bf4 Kg2 h4 c1N h5 b4 h6 b3 h7 Nh6 Rh3 Na2 Nbc3 b1B Na4 b2 Nc1 Be4 Rb1 Bg7 f8R Bcb7 Rf6 Nf7 Bd2 Qb6 d8B Kf1 Bc7 g2 Rc3 Nc6 Kd7 Rae8 e6 Ncb4 e7 Nc2 Re6 Nd8 Qb4 Bbc6+ Kc8 Qh1 d7 g1Q Bcf4 Rhg8 Qd4 Nab4 h8B Be5 Bf6 Rg7 Bh4 Bf3 Bf2 Bg4 Qe4 Qh8 Qh1 Be4 Qh4 Nb7+ d8B Qf8 Ra1 b1R Ra2 Qg2 Rb2 Qg8 Rbb3 Nd5 Rb5 Ndb4 Rc7 Ba1 Rc3 Rf8 e8R Rd7 Bf6 Nd8 Rd3 Qh1 Bb2 Rf6 Rc3 Rh6 Qe7 Rh2 Qh4 Qf3 Bg1 Re2 Bf2 Bd3 Re3 Qfd5 R8e7 Be4 Re6 Qa8+
k2bn3/1n1R1Rnr/4r1B1/n7/rqq2B2/4R2K/BNRpP2B/1nbQN3 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 c4 a5 b4 f5 b6 d5 b5 Kd7 b7 Kc7 c5 h5 g5 f4 g6 f3 g7 a4 c6 h4 Nd2 h3 Nb1 d3 Ra2 f2+ Kd2 h2 Ke3 a3 Kf4 d4 Kg4 d2 Qe1 d1R Qd2 d3 Qb4 Nf6+ Kf3 Rh7 g8R Qd6 Rg6 Be7 Qe1 Qb4 Bh6 Nbd7 b8R Ne8 Re6 Nc5 Rd8 Nb7 Nd2 Ra4 Rd7+ Kb8 c7+ Ka8 c8B Bd8 Rc2 a2 b6 a1N Nc4 Nb3 Kg4 N3a5 Nf3 g1B Bg2 f1N Re3 Nd2 Bf4 Nb1 Nb2 Rc1 Bh3 g2 Qd1 Bf2 Rg1 h1N Ne1 Ng3 Rf1 g1Q Bg2 d2 Be4 Nh5+ Kh3 Qg8 Bg6 Qgc4 Bh2 Bfh4 Rf8 Bhe7 Rf7 Qbb3 Bf4 Ba3 Bh2 Qbb4 Bf4 Nbd6 Ba6 Ndb7 Bb5 Qc6 Bc4 Qd5 Ba2 Qdb3 Rcc7 Rc6 Bh2 Re6 Rc2 Q3c4 Bf4 Nbd6 b7+ Ka7 b8B+ Ka8 Nbd3 Bc1 Nb2 Ndb7 Bh2 Be7 Bbe5 Bd8 Bef4 Nhg7+
nb6/1nB1KB1n/1nrbBN1k/4br1B/1N2R1Pq/3R3n/pqQ1N3/1N6 w - - 0 1 illegal: No possible last move, all moves rejected
4N2n/K2n4/4r1r1/p2P1N1k/Q2q1Bb1/2N1BbR1/1nRN1nR1/R1b1q2n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 a5 e4 f5 Ke2 Kf7 Kd3 Kg6 Kc4 c5 b4 f4 d4 f3 d6 f2 e5 f1B+ Ne2 g1N b6 g2 Kb5 c4 b7 c3 e6 c2 d7 Ne7 Rh3 Rg8 Be3 c1N Nd2 Kh5 Qa4 g5 Rg3 Nd3 Nc3 Ng6 e7 g4 e8N Be2 d5 Qf6 d8B Nd7 b8R Ra6 Bc7 Bh6 Bcf4 Re6 Rb7 Qh8 Rc7 Nh3 Rc5 g1Q Rc6 N7c5 Kb6 Nd7+ Ka7 Qe1 b5 Nb2 b6 Nf2 b7 Nh1 b8N Bf3 Rc5 Qf6 Nc6 Nh8 Ne7 Rg6 Nf5 Qe5 Rg2 g3 Rc4 Qd4+ Rc5 Kg4 h5 Bg5 h6 Kh5 h7 Bh6 Re2 g2 Rf2 g1N Rg2 Nh3 Rg3 Nf7 h8R N3f2 Rg8 Nh8 Rg2 Rgf6 R8g3 Rg6 Ka8 Ba6 Ka7 Bae2 Ne7 Bg4 Nf5 Bef3 Ncb1 Bf8 Kb7 Nbd1 Rc2 Ba3 Nc3 Bc1 Ka8 Nb2 Kb7 Qf6 Ka7 Qd4+
k1N2n2/qqp3n1/4RRr1/2r1R2N/4R2q/Pq6/n1Nb3N/KqBQB1b1 w - - 0 1 illegal: No possible last move
6N1/1r6/bQ6/1RqRN1rK/1NB2R2/nn2Pq2/2prR3/b1rNqkBb w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 Kd6 d4 h5 g4 c5 b6 f5 b7 c4 g5 b3 e3 h3 g6 h4 g7 c3 Qd2 c2 Qe2 b2 Ra2 h2 Qg2 h3 Bb5 Qe7 Qf2 Nh6 g8R Ra4 Qd2 Bg7 Rf8 Na6 b8N Ng4 Qg2 Nc5 Nc3 b1R Rb2 Ba6 Nd7 Nb3 Bc4 Rh6 Nf6 Ne5+ Ke2 Rh4 Qg6 Rg4 Nd1 f3+ Kf2 f4 Bd2 Rb4 Be1 Rb7 Ng8+ Bf6 Qh6 Rc1 Qg6 Qc7 Rf7 Qc5 Qh6 Na1 Rb5 Nb3 Rf8 Kc7 d6+ Kc6 d7 Kd6 Be6 Nc4 d8N Na3 d5 Ke5 d6 Ke4 d7 Kd3 Nc6 Ba1 d8R+ Rd7 Kf1 f2 Nf3 Rd4 Rg1 h1B Rg2 h2 Rf6 Rd7 Bd5 Rb7 Bc4+ Ke4 Ke2 f1R Rf7 Rg1 Rf2 R1g2 Nfe5 f3+ Kf1 Rb8 Nb4 Rb7 Re2 f2 Rd5 Rh4 Rf8 Rhg4 Nf7 Kf3 Qb6 Kg3 Ne5 Kh3 Red2 Kg3 Ke2 Kh3 Kf3 f1Q+ Bf2 Qe1 Rf4 Qe7 Bg1 Qc5 Ke4 Rf2+ Kf5 Kg2 Re2 Kf1 Na2 Be4+ Kf6 h1Q Nb4 Qh3 Na2 Bh1 Nb4 Qf3 Rf5 Rd4 Kg5 Rd2 Rf4 Rg2+ Kh6 Rg4 Kh5 Rg5+
2Q1r3/n3NR2/3NB1n1/Bq1bBqp1/1P1K3N/1qr1br2/1q1N1kB1/2R3b1 w - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 e5 Ra4 Ba6 Ra1 Bc8 f4 exf4 g4 a5 b3 h5 Bh3 hxg4 Bg2 a4 Bf1 axb3 Kf2 Ke7 h4 Kd6 d4 f5 e4 g5 h5 c5 h6 g3+ Ke2 b2 Kd3 g2 h7 c4+ Kc3 f3 Bd3 f4 Bf1 f2 Nf3 g1B Qc2 Ne7 Bg2 f1Q Nh4 f3 Ra7 f2 Nd2 b1Q Bb2 Ng6 Rf7 Be6 Qc1 Rg8 h8N Nc6 Ba1 Qd7 e5+ Kc7 Bb2 Re8 d6+ Kb6 d5 Kb5 Qc2 Na7 Kd4 c3 Qf5 Qb7 d7 c2 d8B c1Q d6 Bd5 d7 Bd6 e6 Bf4 e7 Qcc2 Qh3 Qb3 Ba5 Q1a2 Bc3 Qab2 d8N Qd7 Nb7 Qf5 Qg4 Kc6 Nd6 Qb5 Qh3 Rc8 Qg4 Rge8 Qh3 Bgh2 Rc1 f1R Qg4 Rf3 Qh3 Kd7 Qg4 Ke6 Qh3 Qb1 Bb2 Rcc3 Ba1 Q1b2 Qg4 Rb8 e8B Rbc8 Bc6 Rg8 Bb7 Re8 Bc8+ Qd7 Qh3 Qg4 N2e4 Qe2 Ndf5 Ne5 Rh7 Rcd3+ Kc5 Bg1+ Bd4 Qeb2 Nd2 Ng6 Nf7 Rde3 N7d6 Rd3 Be3 Ke5 Ne7 Qda4 Rf7 Rc3+ Kb6 Qe6 Bc5 Qf6 Qd7 Qf5 Qc6 Bfh2 Be6 Kf4 Qc8 Kg3 Bd4 Qd7 Ka6 Qda4 Be5+ Kf2 Kb6 Bf4 Qc5+ Rce3 Qc8 Rd3 Kc5 Rc3+ Kd4 Qc6 Bd8 Qb5 Ba5 Be3#
rb1K4/1pb1QqN1/1NR1B1R1/2nq4/qR3B2/k2n4/n2PB3/1Brqr1R1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 a4 Ke7 e4 Kd6 Ke2 Kc5 Kd3 h5 e5 f5 g5 h4 a5 b3 a6 Kb4 Kd4 b2 d6 c5+ Kd5 f4 Ke6 c4 g6 f3 d7 c3 a7 c2 g7 f2 Na3 b1N Ne2 g1R Nc4 h3 Bb2 c1Q Nb6 g2 Nf4 h2 Qe1 Nh6 g8B Ng4 Ra4+ Kb3 Be2 f1Q Nh5 Na6 Ng7 Qh4 d8R Qd1 Rc8 Bd6 Rc6 Nf2 Kd7+ Qc4 e6 Nc3 e7 Na2 e8B Nd3 Qh4 Qff7+ Qe7 Re1 Be5 g1B Rb4+ Ka3 Bf4 Be3 Rf1 h1Q Rg1 Qhd5 Rg6 Rc8 a8R Bd4 Bh7 B4e5 Rg1 Rc7+ Kd8 Qcb5 Bf5 Qba4 Be6 Nac5 Ra6 Rh4 Bh2 Rc4 B8d7 Rc1 Bf4 Ra1 Bf5 Rc1 Bde6 Rd7+ Kc8 Bb8 Bg6 Bed6 Be4 Rc7+ Kd8 Be5+ Bd7 Ba7 Rd6 Nf2 Bb1 Nfd3 Rdg6 Bd6 Na8 Rc6 Be6 Bab8 Ra5 Rb6 Ra6 Rb5 Rc6 Ra5 Nb6 Ra7 Rc7 Ra8 Rc6 Bdc7+
5knn/2n1Nb1n/3RB1R1/B2N2rB/qbNN1KPn/7q/Bp2Q2q/3b4 w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 h3 fxg3 Qc2 g5 Qb3 g2 Qd1 g4 Qa4+ b5 Qc2 g3 Qd1 Ra6 Rh2 Rg6 Rh1 Rg4 hxg4 Qf6 Rh5 Qe7 Rh1 Qd8 a4 f5 d4 c5 Kd2 h5 Ke3 b3 d6 h4 d5 f4+ Kf3 h3 e4 c4 e5 h2 e6 c3 a5 c2 e7 b4 a6 Qa5 a7 Rh5 a8B Rg5 Be3 c1N Ra2 Be6 Re2 Nd3 Rf2 Nd7 Ke4 f3 Ne2 g1N Nbc3 g2 Bb6 N3e5 Kf4 Qa4 Ba5 Ndf6 d7+ Kf7 d6 Nh7 Qd3 b2 Bd5 b1B Ba2 Bc2 e8B+ Kg7 d8N b3+ Qe4 b2 d7 Bb4 Nf7 Kf8 d8N Bd1 Nd6 Nf7 Nc6 Nh8 Ne7 Beb3 Ncb5 Bd5 Nec3 Be6 Re2 f2 Rd2 Nf3 Bfc4 g1Q Qe2 f1N Bd5 Qf2 Nc4 Ne3 Bg6 Bf7 Be6 Qg1 Rd6 Qg2 Nd4 Nd5+ Ke4 Nc7 Ncd5 Qf2 Rf1 h1Q Bh5 Qfg2 Ke3 Nh4 Rf6 Qhf1 Rg6 Qh2 Ke4 Qfg2+ Ke3 Qhh3+ Kf4 Qgh2+
1N6/1KR1R3/bN4kb/Q1qB3n/1b2rbqn/q1p2PB1/B3q2N/2Nq3B w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 b4 fxe4 h4 g5 Nc3 gxh4 Nb1 a5 Ra3 a4 Ra1 Ra5 bxa5 Bh3 Qe2 Bd7 Qd1 Bc8 Ke2 Kf7 Ke3 h5 g4 c5 d4 e5 f3 a3 g5 h3 d5 a2 b6 c3 b7 c2 d6 c4 d7 h4 a6 h2 a7 h3 a8B Nf6 Qd3 Bh6 Na3 Kg6 Qd1 Nc6 b8N Qe7 d8N Nh5 Ne2 Nd4 Bd5 Re8 Bg2 Qc5 Nf7 Ba6 Re1 h1Q Qd2 h2 Qa5 Re6 Rb1 a1Q Rb7 Qa2 Bd2 c1B Rc7 Qf1 Bh1 Qg2 Rd1 Qg4 Re1 c3 Nc4 Ba3 Bc1 Bb4 Nb6 Qa3 Bd2 Re8 Nc1 Re7 Re2 Re6 Be1 Re8 Bg2 h1Q Bg3 Qd1 Bh1 Re7 Nd6 Re8 Ndc4 Re7 Nd2 Re8 Kf2 Nf5+ Re3 Nh4 Nf1 Kf5 g6 Bf4 g7 Kg6 Kg1 Re6 Kh2 Bh6 Re1 e3 g8B e4 Ba2 Re7 Bgd5 Bf4 Kg1 e2+ Kh2 e3 Kg1 Nf5 Kh2 Re4 Kg2 Qg5 Nh2 Nh4+ Kh3 Qh6 Kg4 Qg7 Rf1 e1B Rf2 Bd2 Re2 Ng2 Re1 Kh6+ Kf5 e2 Rg1 e1Q Rf1 Qee2 Re1 Be5 Ke6 Qg5 Kd7 Kg6 Nc6 Nh4 Nb8 Qg4+ Kd8 Nf5 Kd7 Bh6 Kd8 Bc4 Kc8 Nh4+ Kb7 Bef4 Na8 Qef2 Re3 Qfe2 Nb6 Rd4 Re5 Re4 Ree7 Ba6+
4BB1R/qk1NN1N1/1nn4P/1Nb2pr1/3QRn2/1Kp1r1rb/1R2R3/2q4b w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 e4 Kd7 d4 g5 Kd2 c5 Kc2 Kc7 h4 f5 b6+ Kb7 e5 f3 h5 f2 h6 c4 d6 g3 d5 c3 d7 g2 d6 g4 e6 g3 e7 Nf6 e8N Qc7 d8R Qe7 d7 Qc5 Ng7 Nc6 Kb3 Rg8 Rh2 Nd5 Nf3 g1R Qd4 g2 Bb5 f1B Ne5 Ra2 Re8 Re2 d8R Re3 Ng6 Be6 Ra2 Bf7 Ka4 b3 Ne7 b2 Na3 b1Q Rb2 Bh5 Rc8 Bf3 Kb3 Be4 Ba4 Qa5 Nb5 Qa7 Ra8 Qa1 Re2 Qb1+ Bb2 Qc1 Ba3 Bf3 Ng6 Bc5 Re4 Bh5 Ne7 Bf3 Ne6 Rg5 Ng7 Rh1 Rd8 g1N Rh8 Bh3 Rb2 Rg3 Rhe2 Rh2 Bb4 Bh1 Ba3 Rhg2 Bb4 Ka6 b7 Nb6 b8N+ Kb7 Nd7 Rg5 Ba3 R2g3 Ne5 Bf1 N7g6 Nb8 Nc7 Bb4 Be8 Nh3 Nb5 Nc6 Nd7 Bd6 Bc5 Nf4 Bb4 Bh3 Ba3 Be5 Bf8 Bd6 Ne7 Bc5
B1K2b2/1RQ1BNk1/n2R3p/R1n3rB/3nr3/Nb1P4/3p1r1n/Rq2B1n1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 c4 gxh4 d3 d5 Kd2 dxc4 Ke2 c3 Qd2 cxd2 Kf3 Kf7 Kg4 e5 b4 c5 f4 a5 b6 e4 b7 h3 b5 c4 b6 e3 Be2 h2 Na3 a4 Nh3 h6 Bb2 c3 Ng5+ Kf6 Nf7 Nc6 b8R Ra7 b7 Qe8 Ra2 Qd8 Rha1 Be6 g3 Bc4 Bd1 Kg7 f6+ Kg6 Be2 c2 Bd4 c1N f5+ Kh7 Bd1 e2 Bf2 h1R Be1 Rh5 Kf4 Qb6 g4 Qb4 g5 Nd4 Ke5 Ne7 g6+ Kg8 g7 Nd5 Rd8 Rg5 b8Q Nc7 Rd6 Na6 Qc7 Qb1 Rb2 Ba2 Rb5 Rb7 Ra5 Rb3 Kd5 Rb4+ Ke5 Rc4 Kd5 Bb3 Ke5 Nc2 Ke6 Re4+ Kd7 Nd4 Kc8 Kh7 Bg3 e1N Bh5 Nef3 Be1 Re8+ Nd8 Re3 f7 Re4 g8B+ Kg7 Bh7 Nce2 Bg8 Be7 f8R Neg1 Bd5 Nh2 Nf7 Rg8 Rfd8 Bf8 Ba8 Rg2 R8d7 Rf2 Nc4 a3 f6+ Kh7 Re7 a2 Na3 Rg5 Qb8 Ne6 Rb7 Nec5 Qc7 Qd1 Rb1 a1N Rc1 Nc2 Ra1 Nd4 Ne5+ Kh8 f7 Bg7 f8B Qb1 Be7 Bf8 Nf7+ Kg7
n1N1N3/1B5b/1R6/1Nr1rbRr/q3BR1p/1kN3Qn/np4P1/1n3KbR w - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 f5 cxd5 g5 exf5 gxh4 Nh3 c5 Bb2 c4 Ng1 c3 Rh2 cxb2 Rh3 Na6 Rh1 Nb8 d4 Kd7 a4 Kd6 f4 h5 f6 e5 a5 b5 f7 b3 a6 h3 a7 h2 f5 b4 f6 e4 Nc3 b1B Nge2 h4 Ra6+ Nc6 Rb6 e3 Qd3 b2 Qg6 Be7 f8R b3 f7+ Nf6 Rg8 Rh5 f8R Qe8 Rg7 Rb8 a8B Bcf5 Bb7 Rc8 Qg4 Rc7 Rg5 Nd7 Rf7 Bh7 Rf4 Bbf5 Qf3 b1N Qg3 Bd8 Nb5+ Ke7 d6+ Ke6 Rg6+ Kd5 Rg5 Kc4 Nec3+ e2 d5+ Qe4 Kf2 b2 Ke1 Kb4 Kf2 e1R Bd3 Re2+ Kf1 Qc4 Be4 Kb3 Rg7 Qa4 Rg5 Nde5 d7 Nc4 d6 Nb4 Bed5 Rc5 Be4 Bc7 d8N Na2 d7 Bb8 Nf7 Ba7 d8N Re3 Re6 Nb6 Nc6 Na8 Nfd6 Bb6 Ne8 Re2 Rg1 h1N Nca7 Nf2 Nc8 Nh3 Rh1 Ba7 Rb6 Re3 Bd3 Ree5 Bde4 Rc4 Rf6 Bg1 Rb6 Rcc5
bb2NBRN/1n1R4/1K1q1Bp1/Q1pP1N2/rB2qqq1/3r1q2/1N5B/4n2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 d4 Kd6 Kd2 f5 Ke3 a5 b4 c6 h5 g6 b6 a4 b7 a3 b5 a2 h6 Ra6 b6 Nd7 h7 Nc5 Nf3 Ra4 Ba3 Nf6 Nh4 Nd7 Qe1 Ne5 Nd2 Nd3 Rd1 a1Q Bb4 Qc1 b8B+ Qc7 b7 g1Q+ Qf2 Rg8 h8N Qg2 Qe1 Rg7 Ba7 Rd7 b8B Bb7 Bb6 Qa3 Rh3 Ba8 Nc4+ Ke7 d6+ Kf6 Nb2 Kg5 Rh1 Nb7 B6c5 Kg4 Rh3 Rd8 d7 Bd6 Qc3 Be5 Bf8 Qd6 Qc5 Qh1 Qa5 g2 Rh2 Kg3 Rd2 Re8 d8B g1Q+ Rf2 Qd1 Bf6 Rd8 Rf4 Kh2 Re4 Bg3 Re8 Qhe1 Bc7 f4+ Ke4 f3 Nf5 Qd7 Bcd6 c5 Kd5 f2 e4 Qc3 e5 Kh1 e6 f1Q e7 Qg4 Rd1 Qde6+ Kc6 Q1e4+ Kb6 Ne1 Rd2 Rd7 Rd8 Qff4 e8N Qcf3 Rd3 Rg7 Rd7 Qe7 d5 Rh7 Re3 Rh2 Bc7 Rd2 Re2 Rd3 Rh2+ Kg1 Rh7 Kg2 Rg7 Kh1 Rg8 Qh6 Bd8 Bb8 Bc7 Qc1 Bg3 Qcf4 Bh2 Qed6+
2N4n/4Rr1P/N5Q1/Kpbqb2r/B1rB4/1r4pn/BB1Nk2n/1R2qN2 w - - 0 1 legal: proof: b4 d5 g4 h5 f4 hxg4 c4 e5 cxd5 exf4 b5 b6 a4 Bf5 a5 Bc8 a6 Bb7 axb7 a6 Bh3 axb5 Bf1 b4 h4 Ke7 d4 Kd6 Kd2 c5 e4 g5 h5 f5 h6 b5 Ra2 f3 Bd3 g3 Qe2 g4 Rc2 b3 Kc3 f2 Be3 f1R Nf3 b2 Nfd2 f4 Qg2 c4 Kb4 Nd7 b8N c3 Na6 f3 Rg1 Rc1 Nf1 f2 Re2 c2 Nbd2 Ndf6 Rh1 Qd7 Ka5 b1Q Qg1 g2 e5+ Ke7 e6 Kd6 e7 g3 e8B Ne7 Bf7 Ng6 Bc4 Qc6 Bb3 Ng4 Ba4 Nh2 Bg8 Rh7 Be6 Rf7 h7 Nh8 Re1 Rf5 Bg8 Rh5 Bf7 Ke7 d6+ Kf6 d5 Kf5 d7 Kg4 d8N Bc5 d6 Qd5 Bd4 Ra7 Bg8 Rf7 d7 Rf3 Bb2 Rb3 Nb7 Kf4 d8B Qa1 Ne4 Kf3 Bdf6 Qb1 Bfd4 Qa1 Ne3 f1R Nbd6 Rf2 Qf1 g1N Nc8 Nh3 Qd3 Rf1 Nd2+ Kf2 Qg6 Qb1 Rd1 Ke2 Be6 Rf7 Rdf1 Re1 Rf5 c1B Re5 Ref1 Rg1 R1f4 Nef1+ Re4 Bd7 Qa1 Re7 Qb1 Be6 Ref4 Bf2 Rc4 Bfd4 Qbe4 Bf5 Qe3 Bb1 Qee4 Ba2 Qee5 Nb1 Bf4 Nbd2 Qee6 Ne3 Qee4 Rb1 Be5 Nef1 Qe3 Qd6 Qf2 Qg6 Qe1
qbB1n2K/1rn5/q1n5/1RP4Q/1Bkqp2R/1nrR1RB1/2np1N2/1B2N3 w - - 0 1 legal: proof: f4 b5 e4 f5 d4 c5 a4 cxd4 axb5 Bb7 g3 fxe4 g4 Bd5 f5 Be6 f6 gxf6 g5 Bg4 h3 f5 hxg4 f4 Kd2 Kf7 c4 Ke6 b4 d5 g6 a5 g7 h5 g5 f3 c5 d3 Kc3 d2 Kd4 f2 b6 a4 b7 h4 g6 e3 b5 a3 b6 e2 Qe1 d1N Qc3 e1N Bd2 h3 Nf3 h2 Bd3 Nf6 g8R f1Q g7 a2 Qc2 Rh3 Nc3 Rg3 Ne4 Ne8 Bb4 Nc3 Nf2 Ra7 Rd1 a1N Bg6 Qa6 Rd3 Qd7 Qd1 Qd8 Rf1 h1Q Rh8 Qg2 Rh4 Nc6+ Ke3 d4+ Kf4 Kd5 Kf5 e5 b8B Rd7 b7 Kc4 g8B+ Nd5 Be6 Nec2 Ne1 Nb3 Qh5 Bd6 Bh7 Re7 Bc8 Ndc7 Bg6 Re3 Bh7 Qh1 Kg6 Qd7 Rg1 Qd5 Rg3 Rf7 Rf3 e4 Bg8 Re7 Bf7 Bf4 Kh7 Qd6 Kh8 Qa8 Rd1 Rc3 Rdd3 Qg6 Ba7 Qd6 b8R Bg3 Rb5 Rd7 Rde3 d3 Bb8 d2 Rd3 Qg6 Be6 Bf4 Bh3 Rg7 Bf1 Qd4 Be2 Na7 Bf1 Qa6 Be2 Nc6 Bd1 Na3 Bc2 Bg3 Bb1 Nc2 Rf8 Bd6 Rff3 Ne6 Ng4 Bf4 Be5 Rb7 Nf2 Bg3 Bf6 Bb8 Be5 N6g7 Bf4 Nc7 Bg3 Nge8+
q4KR1/2b1Qb1B/2B2pqp/N3bkB1/rq1R3R/3R1Pr1/B1r2n2/N4r2 w - - 0 1 legal: proof: b4 d5 a3 b5 a4 c5 axb5 cxb4 h4 a5 e4 dxe4 h5 Na6 h6 gxh6 bxa6 h5 Be2 h4 Bd3 Bf5 Bf1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 a4 Kg5 h3 d4 a3 g4 e3 c4 e2 d5+ Ke5 c5 e1Q c6 b3 f3 h2 d6 a2 d7 b2 c7 Qa5 a7 Nf6 Qe2+ Kd5 Na3 b1Q Nc4 Qab4 Na5 e5 Qe1 Ke6 Ne2 e4 Nd4+ Ke5 Bd3 e3 Ndb3 Bd6 Kh6 e2 Kg7 h6 g5 Ng4 g6 f6 Bg5 Nf2 Bf5 Ba6 c8B Bc4 Bc2 Qe8 d8R Bc7 Rd4 Bf7 Be6 Rc8 a8B Rg8+ Kh7 Qc6 g7 Qa6 Bc6 Qa8 Bg6 Qf5 Rc1 a1R Rc3 Ra4 Na1 Qc2 Ba2 Qe4 Qg1 e1B Rcd3 Bc3 Qe1 Bb2 Rg1 h1R Rg4 Rf1 Rh4 Rgf8 g8R Rfe8 Rh8 Rg8 Bf5 Rg6 Rg8 Bc3 Kh8 Rg7 Bh7 Rg6 Bd2 Rg3 Be3 Qg6 Bg5+ Kf5 Qe7 Be8 Rg7 Bb2 Kg8 Bc3 Kf8 Bf7+ Rd8 B3e5 Rg8 Rb8 Rdd4 Rb5 Rd3 Rc5 Rdd4 Rc2 Rd3 Qab7 R8d4 Qa8+
nrn3B1/2nr2q1/1NrB3R/rn4R1/2NNR1b1/1P4pp/K4krN/2Q4R w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 a5 Kb3 d5 b6 f5 c5 h5 c6 f4 g6 a4+ Ka2 h4 b3 d3 g7 Kd4 e5 a3 e6 h3 e7 g2 e8R d2 c7 f3 b7 f2 Qe2 d1R Rf8 g3 Rf6 Qe7 Bf4 Nd7 b8N Ra5 Bg5 Nb6 Rc6 Rc1 Qb5 Bg4 c8R Na8 Bf6+ Ke3 R8c7 d4 Ne2 g1R Nd7 d3 Qc4 d2 Be5 d1R Rh6 Rg2 Nb6 Rd7 Nd4 Qf7 Bd3 f1N+ Nd2 Ne7 g8N Qg7 Rc5 Nc8 Bd6 Kf2 Nf6 Ne3 Bh7 Nd5 Bg8 Ndc7 Rg5 Rc3 Rae1 Rc2+ Ka1 a2 Re4 Rc3 Kb2 a1N Qc5 Nc2 Ndc4 Na3 Ka2 Rc1 Ne5 Re1 Qc1 Re3 Nec4 Rc3 Ne5 Rc6 Nec4 Qf8 Nfd5 Qf7 Nde3 Qg7 Nf1 Ne7 Bd5 Rb8 Nh2 Nc8 Bg8 Nab5+
4Nr2/p2B1QR1/2PB1qq1/nNR1n1Rb/pr5q/n6n/7k/K1Nq1R1N w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 Be3 bxa4 Bh6 Nc6 Bc1 Nb8 g4 g5 f4 gxf4 h4 Nf6 g5 Bh6 g6 Bg5 hxg5 Ng8 Kd2 h5 b4 e5 c4 Ke7 Kc2 Kd6 Kb2 h4 g7 h3 f6 e4 b5 Ke5 b6 d5 b7 f3 g6 f2 f7 h2 f8R d3 c5 e3 Re8+ Kf4 Be2 Kg3 Re7 f1Q Na3 d2 Nb5 d4 Nh3 d3 Bg4 e2 Nf2 e1N Qb3 d1Q Qf7 d2 Bd7 Nh6 g8R Qe8 g7 Nc6 b8N Na5 c6 Ng4 Na6 Nc2 Nc5 Ne5 Nb3 Rb8 Ra2 Na3 Ka1 Qh5 Rc2 Qh4 Rc5 d1N Bf4+ Kg2 Qf5 Qg6 Qf7 Ba6 Nc1 Rb7 Nc3 Be2 Nb5 Bh5 Bg3 Qhf6 Bf4 Qfd3 Rf1 h1Q Bg3 Qhh4 Nh1 Nf2 Bh2 Nh3 Bf4 Ng4+ Ree5 Qe6 Rg5 Qd1 Bd6 Qef5 Re8 Rb6 Re7 Rf8 g8N Qf4 Nf6 Kh2 Ne8 Ne5 Qf5 Rb7 Rg7 Qff2 Qf7 Qff6 Nbc7 Rb2 Nb5 Rb4
2r5/8/3N4/k1B3p1/1n1qR1p1/2P1Bqpn/1NBRr1bR/1QRbqnBK w - - 0 1 illegal: No possible last move
r4n1b/1KBN1R2/4RqPk/2b3qB/1r3p2/2R3np/1B1Nn1Rp/QB2q3 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 h4 gxh4 b6 a5 b3 a4 Kf2 a3 Ke1 Bb7 Ra2 Bc6 Ra1 Ba4 bxa4 Be7 Rh3 Bd6 Rh1 Bf8 Kd2 h5 Kd3 f5 Kc4 Kf7 Kb5 Kg7 e4 d5 g4 h3 c4 h2 e5 a2 g5 f3 e6 d3 a5 f4 c5 f2 a6 d4 b7 d2 g6 h4 a7 d3 e7 h3 e8R Na6 Kc6 Qe7 b8B Kh6 Be2 f1N Bb2 Qf7 Bc7 Nb4+ Kb7 Nf6 c6 Bc5 Bh5 Nd7 Re6 Ng3 Nf3 Nd5 Ne5 Nc3 Rg1 Nf8 Nd7 Nce2 Rg2 Qf6 Qh1 d1Q Nd2 Qa4 Rc1 a1B Rc3 Qa5 Qf1 Re8 a8R Rg8 Ra7 Ra8 Be5 Qad8 c7 Qg5 c8B Qdf6 Bc7 Rb8+ Kc6 Rb4 Ba6 Rh8 Bc4 Rg8 Ba2 Rh8 Bb1 Rg8 Nb3 d2 Qh1 d1Q Nd2 Re4 Kb7 Qe1 Re7 Ra4 Ra6 Rd4 Rf7 Rb4+ Rb6 Nh7 Qg1 Ra8 Qd4 Nf8 Qg1 Rba4 Re6 Rb4+ Nb6 Ra6 Rf3 Be3 Ba2 Bc5 Ba3 Qd4 Rd3 Bc3 Bb2 Qef2 Qa1 Ra8 Bb1 Qe1 Rde3 Qdd8 Rd3 Bh8 Rc3 Rd4 Nd7 Qdf6 Bc1 Rc4 Bb2 Rb4+
2br3q/4q2n/Rp3kPN/1N2p1R1/5rKR/1b1pB1Qn/1RN2r2/n3B2N w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 c5 e5 cxd4 Ba3 g6 Bc1 f6 exf6 Kf7 Bf4 Ke6 f7 Kd5 Bc1 Kc6 h4 Bg7 g4 Qa5 f4 Kc5 g5 Be5 f5 Qa7 f6 Bh2 Bh3 Qa5 Bg4 Qd8 Bf5 gxf5 g6 Kc6 Kf2 Bf4 Ke1 Bg5 hxg5 Qc7 Nh3 Qb6 Ng1 Qd8 Ke2 Kd5 Kf3 Ke5 f8R h5 a4 d5 c4 b3 a5 b6 a6 b2 g7 d3 c5 d4 f7 d2 g6 d3 a7 f4 c6 h4 c7 h3 Na3 b1B Qb3 d1N Qa4 h2 Nh3 Rh5 Nf2 Nd7 Kg4 f3 Nc2 Kf6 Be3 e5 Qf4+ Rf5 Ra2 Nc5 Rb2 Qe7 Qg3 Nb3 Rg1 Rb8 a8R h1Q Ra6 Qh8 Nh1 f2 Rd8 f1R f8B R1f2 Rd4 Ba2 Rda4 Be6 c8N Na1 Na7 Bab3 Nb5 Rd8 Rd4 Bc8 Rg2 Qa7 Bb4 Qe7 Ba5 Nc3 Rf4 Ne4 Be1 Ng5 Rg1 Nh3 Rd4 Qe8 Rg2 Ne7 Rf4 Nd5 Rfa4 Qe7 g8N+ Kg7 Nh6 Nf6+ Kh4 Nh7+ Kg4 R5f3+ Kh5 Rff8 Rh4 R8f5+ Kg4 Kf6 Rh2 Bbe6 Rh5 Bb3 Rg5 Nf4 Rhh5 Nh3 Rh4 R5f4+
2B1R1n1/1N1bpQ1r/3N3n/q1RqpN1P/2R4p/6r1/4KN2/k2rRBbq w - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 f6 cxd5 Na6 h4 Nb8 e5 fxe5 h5 Bg7 Qg4 Bh6 Qd1 Bf8 g4 h6 Qa4 Ba6 b3 Bc8 Qf4 Bg7 Qg3 Bf8 Qh4 Be6 Bb2 Bc8 Bd4 Qd6 Be3 gxh4 g5 Qd7 g6 Qd8 Bg5 hxg5 f4 Kd7 d4 Kd6 b4 a5 b6 c5 b7 c4 f5 g4 b5 c3 f6 c2 b6 c1R+ Ke2 a4 f7 a3 g7 g3 Nf3 g2 Nbd2 g1Q Ne4+ Kd7 d6 Ke6 d7 Kd5 Nf2 Kc4 d5 Kb3 d6 Kb2 Nd4 a2 Nf5 Rc6 Re1 Na6 b8R a1Q b7 Nh6 g8B Rh7 Rh2 Qda5 d8N Nb4 d7 Q1a2 Rh3 Re6 Rc3 Rg6 Rc4 Qh1 Rc5 Bg7 f8Q Rg3 Be6 Nd5 Nf7 Nf6 d8N Bd7 N7d6 Qad5 Rbc8 Nfg8 Qf7 Bf6 Rc4 Bg5 R8c5 Be3 b8R+ Ka2 N8b7 Ra7 Nfe4 Bg1 Nf2 Ra6 Ra8 Rb6 Re8 Rb1 Nc8 Rd1 Ncd6 Ba4 Bd7 Ka1 Bc8 Bd7
2N1q3/rprN2pR/Rn1P1Nk1/2RQBpn1/2n1NB2/6r1/n2b4/5RbK w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 g5 f6 g6 Be6 Qc2 Bf7 Qb3 Ra7 Qd1 Ra8 Bh3 h5 Bg4 hxg4 gxf7+ Kd7 Kf2 Ke7 Kg2 c5 e4 c4 a4 g3 h4 b3 d4 b2 h5 c3 e5 c2 h6 f5 h7 Nh6 a5 Ra6 e6 Kf6 e7 Rb6 e8N+ Kg5 a6 Rg6 d6 Qa5 d7 Qc3 d8R Qb3 d5 Qb5 a7 Nd7 a8N Bb4 f8B Nf7 Nd2 b1N Nb6 Nc3 Rc8 Na2 Bd6 Ba5 Rh6 f3+ Kh1 f2 Nf6 f1N Rc5 Ra8 h8R Ne3 Nc8 Nc4 Be5 Ndb6 R8h7 Qe8 d6 Bb4 Qf3 Ra7 Qd5 Ba5 Rh4 Bc3 Rf4 Ba5 Rf1 Bb4 Nb3+ Bd2 Ne2 g2+ Kh2 g1B+ Kh1 Nb4 Ra6 Na2 Nc3 Bd4 Bb2 c1R Ba1 Bg1 Bh2 Rh6 Nce4+ Kg6 Be5 Ng5 Bf4 Rh4 Be5 Rg4 Bhf4 Nb2 Rc7 Rc3 Nbc5 Rgg3 Ncd7 N2c4 Rc5 Na3 Rca5 Rc7 Rc5 Nac4
K1r2B1q/R4B1n/4n1q1/Np1N1p2/1N1bR2q/1PqR4/rk1pN2Q/R6n w - - 0 1 legal: proof: f4 e5 g4 exf4 d4 h5 gxh5 c5 Bd2 cxd4 Be3 Ba3 Bc1 Bf8 b4 a5 Bh3 axb4 Bg2 b3 Bf1 b2 Nc3 b6 Nb1 Ba6 Be3 Bc4 Bc1 Bb3 axb3 Be7 Ra5 Bc5 Ra1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 h4 Kb4 Kd5 f5 e4 g5 c4 f3 h6 b5 c5 g4 h5 d3 e5 f2 h7 g3 h6 g2 e6 d2 e7 d6 e8N Qa5 c6 Ra6 c7 Qa3 c8N Nc6 Qh5 d1N Ne2 g1Q Nbc3 b1Q Ne7 Nd4 Nc7 Ne6 Rh3 Qab2 Rd3 Ra2 Kc6 Ka3 Kb7 d5 Qh2 d4 Nc6 Nf6 Ka8 Qc2 Na5 Qg6 N3d5 Qc3 Nb4 Rg8 h8R Nh7 Bg2 f1Q Bd5 Qf4 Bc4 Qfg5 Ncd5 Nf2 Bf4 Qh4 Bd6 Bg7+ Bf8 Nhg5 Rh7 Nh1 Qc7 Bf6 Qh2 Bh8 Ra7 Nh7 Re3 d3 Re4 Nhg5 h7 Bd4 h8R d2 Rh5 Nh7 Rg5 Rh8 Rg3 Rg8 Re1 Qa1 Rd3 Kb2 Rf1 Qae1 Rg1 Qhf6 Rf1 Qeh4 Ra1 Qh8 Nb6 Nf4 Bf7 Ne6 N6d5 Rg7 Bg8 Rc7 Bf7 Rc8+
1Brk4/2rNpR2/2nq4/1p1N1KRp/1N2q2b/2Bq4/1b1NPRq1/Q5Rr w - - 0 1 illegal: No possible last move, all moves rejected
Bq1q3k/1RR1rb1N/1bN2P2/3p2R1/p6N/QN1KBq1b/1bbpR3/4r3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 h6 f4 Bd2 gxh6 Be3 h5 Bc1 h4 f3 e5 Qd3 Nh6 Qd1 Na6 Ke2 Nf5 Ke1 Nc5 exf5 e4 Ke2 e3 Ke1 Ne4 fxe4 Qe7 Qd2 Qf6 Qd1 Qd8 Ke2 Kf7 c4 Kg7 b4 a5 g4 h5 e5 f3+ Kd3 h3 b5 h2 e6 f2 c5 h4 e7 a3 e8R h3 c6 a4 g5 e2 c7 e1Q b6 a2 g6 Qb4 b7 Bc5 b8N Bb6 Nd2 Ra7 Bg2 f1B+ Re2 Re8 Rb1 a1B Qb3 Kh8 Qa3 Bb2 Ba8 d5 Nb3 Be6 c8R Rae7 Be3 Bf7 Nf3 Qbd6 Nc6 Qb8 Rg1 h1Q Rc7 h2 Rg5 Bh3 Nh4 Qf3 f6 h1B g7+ Kh7 g8N Kh8 Nh6 B1g2 Rd7 Bg4 Rc7 B2h3 N6f5 Bgh5 Ng7 B5g4 Ne6 Bgh5 Kd2 d3 Nf8 B5g4 Nh7 Bgh5 Kd1 d2 Kc2 Qf2 Ree1 Bd1+ Kd3 Qf3 Re2 Rg8 Rf5 Rg1 Rg5 Re1 Nc5 Bd4 Rb4 Bb2 Nb3 B6d4 Rbb7 Ba7 Rg1 Bb6 Rg5 Bc2+
3R3R/2pb4/1b1NN2p/bp1B1Q1n/K5Nb/3n1NR1/1Pp1B1Rq/1kr4r w - - 0 1 illegal: No possible last move, all moves rejected
rr6/Q2RP1R1/p3N3/1rn4p/qq2Rpp1/N2B3B/3n1qnk/1R1KBB2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 Qd3 bxa4 Qd2 Ne7 Qd1 Ng8 h4 Be7 Qd3 Ba6 Qd1 Bd3 h5 Bg6 Na3 f5 Nb1 Bf6 gxf6 Bf7 Rh3 g5 Rh1 Bg6 hxg6 Qc7 Ra3 Qc8 Ra1 Qd8 b4 h5 e4 d5 c4 Kd7 c5 Ke6 e5 a6 g7 d3 c6 a3 f7 f3 f8R f2+ Kd2 f4 b5 d4 b6 a2 b7 Qd6 c7 Nd7 b8R Nc5 Rfd8 Kf5 e6 Nf6 Nf3 Kg4 c8B Kg3 g8B Qf8 Qa4 Nfe4+ Kd1 d2 Na3 Qd6 Rab1 a1R R1b4 Rb1 e7 Rb2 Rc4 Rb5 Bch3 g4 Ng5 Qb6 Rg1+ Kh2 Rd7 Qa5 Bd5 Qb4 Rg8 Rab8 Bd3 f1N Rg7 Ne3+ Ke2 Rhc8 Ne6 Ng2 Kd1 Ra8 Qa5 Rcb8 Qb6 Ng5 Ke2 Nf3 Qa7 d1Q+ Kf2 Rd8 Bd2 Qda4 Ke2 Rdb8 Be1 Nd2 B5e4 Qc2 Bg6 Qa2 Kd1 Qab2 Bf1 d3 Be4 Qd4 Bf3 Qf2 Re4 Ndb3 B3e2 d2 Kc2 Qg3 Bd3 d1Q+ Kb2 Qa1+ Kc2 Qa2+ Kd1 Nd2 Kc1 Qac4+ Kd1 Qf2 Bfe2 Nf1 Bd2 Qcd4 Kc1 Qa5 Kc2 Ng3 Rb1 Nf1 Be1 Nd2 Kd1 Qdb4 Bf1 Qaa4+
1BN3R1/3q1p1n/K4b1p/Q1n5/3qPNb1/1Bp2kp1/1N3Npp/RR2R1b1 w - - 0 1 illegal: Other
r1B2k2/1BBbR2b/2b3qq/nr6/2N2BN1/3rR1b1/NnQqb1P1/2K2nN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 e4 d5 b4 a5 c4 f5 b6 f3 b7 f2 e5 h3 e6 a4 c5 h2 b5 f4 b6 h4 c6 f3 e7 a3 c7 a2 Qe1 h3 Bb2 d3 Kc1 d2+ Kc2 d1B+ Kc1 d4 Qe3 d3 Bd4 d2+ Kb2 Nd7 b8B Ne5 b7 Ba4 Bda7 d1B Qe1 Qd2+ Ka3 Rh5 Qe2 Bcd7 c8B Bac6 Qd3 Bc2 Qe3 Nd3 Qe4 Rb5 Bf4 Nb2 b8N Bd3 Qe2 Bh7 Nc3 Kf7 Rc1 a1Q+ Na2 Qb1 Rc3 Qg6 Re3 Bg7 e8N Ne7 Bb7 Kf8 Nd6 Be5 Nc4 Bc7 Qd3 Be5 Be2 f1B Qc2 f2 Bg4 Be2 Be6 f1N Bg4 Be4 Nc6 Bc7 N6e5 Nc6 Be6 Na5 Ng4 Bec6 Bb6 Bb8 Bg5 Be5 Bc7 Bg3 Bgf4 Rg5 Nf3 Rb5 Rg1 h1Q Bf5 Nh2 Re1 Nf1 Ng1 h2 Re7 Bef3 R1e3 Be2 Nh3 Qg1 Be6 h1R Bf5 Qh2 Ng1 Be8 Bfc8 Qhh6 Nb4 Bed7 Ka2 Qh3 Kb1 Qhh6 Na2 Rhh5 Rf3 Rhd5 Rfe3 Qb4 Kc1 Rd3 Qb3 Qc3+ Qc2 Qd2+
nqNbBrR1/3b1N1q/1nqRn3/3r4/2R2nrP/8/BnRBbk1K/3B3Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 e4 g5 c4 a5 e5 d5 e6 f5 b6 d3 b4+ Kd4 e7 f3+ Kg3 f2 e8B f4+ Kg2 d2 b7 Ke3 b5 d4 b6 a4 c5 f3+ Kh2 a3 c6 d3 c7 a2 Qa4 Nd7 b8R g3+ Kh3 g2 b7 g4+ Kh2 g3+ Kh3 Be7 Qc6 Nb6+ Bd7 Ra4 Qd6 Rg4 Ba4 Bd7 c8B Na8 Qc6 Nf6 Qc4 Rf8 Qf7 Nd5 Qh5 Ndb6 Be2 f1B Qg5+ Kf2 Na3 d1N Bd2 Nb2 Bed1 Be2 Rc1 a1N Nb5 Nb3 Nd6 Nd4 Rh2 Ne6 Rc4 Qe8 Qa5 Bd8 Qd5 Qf7 Bab3 Qg8 Ba2 Qh7 Bf4 d2 Bh6 Ba4 Bd7 Bb5 Be8 Bd7 Ba4 d1R Nc8 Rdd4 Bd1 Rd3 Qe4 Rd5 Bf4 Kf1 Qb1 f2 Nf3 g1Q Ne5 g2 Nf7 Qh1 Bd2 Kg1 Qe4 f1Q Qb1 Qf4 Qe4 Nac7 Ra8 Qe5 b8R Kf2 Ra6 Nca8 Qb1 N6a4 Rd6 N4b6 Bdb3 Qc1 Bd1 Qcc2 Rh1 Qeh8 Kh2 g1N Qa1 Nh3 Rg1 Re4 Rg8 Nhf4 Rb7 Qa4 Rbc7 Qc6 Rc2 Ng2 Rc4 Rg4 Qb1 Ngf4 Qe4 Qc3 Qh1 Qa5 Rc2 Qa7 Rc4 Qb8 Rc2 Qa4 R7c4 Qc6
4qB1Q/4rR2/N3b1Kb/6q1/nq1P2R1/rbB1b1bb/k1BN1bRR/2B3n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 g4 f5+ Kf3 Kd5 b4 h5 g5 c5 b6 a4 b7 c3 g6 Kc4 b5 c2 e4+ Kb3 e5 a3 g7 h3 d3 c4 b6 h4 e6 h2 e7 c3 e8R a2 Ne2 h3 Bb2 Nf6 g8R Bd6 Rg3 Nfd7 Rg4 Na6 b8B Nac5 b7 Rh7 Re4 Qg5 Bc1 Na4 Qd2 Ne5+ Kf2 f3 Kg3 f4+ Kf2 Be6 Rd4 Re7 Rhg1 h1Q Qe1 h2 Ba3 c1B R1g2 c2 Ng3 Bd2 Rd5 c1B Ne4 Bc5+ Qe3 Ba7 Qd4 Be3+ Ke1 f2+ Ke2 Bb6 Rd7 Nf3 Bbd6 Bc7 b8B Ng1+ Kd1 f3 Qh8 Bcd2 Bc1 Ra6 Bb4 Bg3 Bc3 Be1 Be2 f1Q Bd6 f2 Bf3 Ra5 d4 Qc4 Be2 f1B Bd3 B1f2 Bda3 Qb4 Bc2+ Kc4 Nc5 Ra7 Be4 Ra5 Na6 Kb3 Bg6 Bfc4 Rh4 Bh3 Rg4 Be6 Bf5 Nf3+ Ke2 Qe1+ Kd3 h1B Ke4 Ng1 Rd8 Qe2 Rf8 Qeb5 Bg6 Qb8 Rf3 Qe8 Rh2 B1g2 Bh7 Bf1 Rf7 Bfc4 Rg2 Kc2 Nd2 Bb3 Rb1 a1B Rh2 Bb2 Ra1 Qc4 Bd6 Qb4 Ra2 Ra7 Bf8 Re7 Nc4 Kb1 Bg6 Be1 Bf5 Ba3 Rag2 B1f2 Nd2+ Ka2 Bg6 Qbb5 Bh7 Bad6 Bg6 Qb4 Bf5 Bdf4 Bg6 Qgc5 Bf5 Bh6 Bh7 Bed5+ Kf5 Be6+ Kg6 Nb6 Kf6 Ra3 Bc2 Na4 Kg6 Qg5+
4B3/2bQ3K/2rBr3/2Rb3R/1NnN1PB1/1rqN2rr/2b1Nnk1/bBq1n3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 a5 c4 e5 b4 h5 g5 Kf5 g6 d5 c5 e3+ Kd3 e2 b6 Kg4 b5 Kg3 g7 e1N+ Kd2 a4 b7 d3 Ke3 h3 b6 h4 c6 d4+ Ke4 d2 c7 a3 Bb5 d3 Ne2+ Kg2 Bc4 a2 Bd5 h2 Bc6 h3 Ng3 Be6 c8B Nh6 g8B Bd6 Bf7 Nd7 b8N Ra3 b7 Bc7 Bg8 Qf6 Qa4 d1B Qb3 d2 Nf5 Nb6 Nd7 Ng4 b8N Nc4 Na6 Bc2+ Qd3 d1Q Nc3 Rb3 Bh7 Rg8 Ba3 Qc1 Ndc5 Rg5 Rb1 a1B Nb4 Qg7 Ne2 Bf7 Rf1 h1R Nfd4 h2 Be8 Rg6 Kf5 e4 Qd2 e3+ Ncd3 Rg1 Rf3 h1R Rh3 Qh8 Rh5 Rc6 Be6 Bg8 Kg6 Nf2 Qd1 Rh3 Kh6 Nd6 Bg4 Bd5 Qd2 Qe5 Bhg6 Nc4 Kh7 Kf1 Rb2 Rgg3 B6f5 Kg2 Ra2 Bb1 Rc2 Qf6 Rc3 Bc2 Qd1 Na5 Rc5 Nc4 Ne6 Qfb2 N6d4 Qc3 Ne5 Na5 Ng1 e2 Na6 Nf3 Nb5 e1R Rc4 Bde4 Qd7 Rf1 Nd4 Bd1 Bd6 Bd5 Rc5 Re1 Nb4 Nc4 Bb1 Bc2+ Ned3 Re6 Nge2 Ne1
b4k2/1R2r1n1/4rNQN/Kr2bR2/1P3N1B/1NRqq1nB/5r1n/b3rR1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 a5 c4 h5 g4 a4 g5 a3 g6 h3 b6 f3 e5 d3 Kc3 h4 e6 h2 e7 f4 b7 a2 g7 f2 c5 h3 c6 f3 c7 d4+ Kc4 d2 Kb5 d3 Be2 f1N Qa4 d1R Bd2 f2 Qa7 Rh6 Qe3 Nc6 b8N Re1 Qe6 Ra7 Bg5 d2 Nc3 d1Q Bf6 Ne5 Qa6 Q1d4 Qa3 Ng4 Nb1 Bb7 c8R Ba8 Qa6 Ng3 Rc3 f1R Nd7 Rf2 Nd2 Qe3 Bh4 Rb6+ Ka5 N8f6 g8N Bg7 Nb3 Nfh5 Nh6 Be5 Bf1 Ng7 Ne2 Rab7 Rac1 a1B Nf4 Rc7 Rg1 h1R Qd3 h2 Bh3 Rcc6 Rf1 Re6 Rc5 Rg1 R1c3 h1B Rc7 Nh2 Rb7 N3h5 Qa6 Rg5 Qd3 Ng3 Qh7 Rf5 Qg6+ Rf7 Nf8 Qdd3 Nh7 N7h5 Rb8+ Kd7 e8R Re7 Rf8 Ng7 Rf5 Bhb7 Qf6 Bh1 Rb7+ Kd8 Qg5 Ke8 Nf6+ Kf8 Qg6 Rb5+
2Nb1KB1/1N1Q4/1n3qrk/N2rr3/Pb2bq1n/5q1N/1R1Bq1Bb/1B3R1q w - - 0 1 illegal: No possible last move
k5Nr/b1K4q/PRNRR3/BB4Bb/1BQ1Rr1r/6q1/2nn1q1b/1r1b1b2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 f5 a4 c5 d4 Kc7 e4 b5 g4 Kb7 d6 h5 g5 h3 d5 c4 a5 c3 e5 h2 g6 h4 e6 h3 e7 c2 e8R b3 g7 b2 d7 b4 d6 b3 Re4 Nc6 Qd2 Nf6 g8R Qc7 d8B Nd4+ Kf2 f3 Kg3 f2 Be2 f1Q Bf3 Qf2+ Kf4 Bh6+ Ke5 f4 Qd3 Bg4 Ra3 Bh5 Bd2 c1B Nc3 b1Q Be2 f3 Rg6 b2 Nd5 Be3 Qc4 Nc2 Bb4 Ba7 Ne7 Bf4+ Ke6 Qbe1 d7 b1R Ng8 Be5 Bde7 Rf8 d8B Ka8 a6 Qg3 Rh6 f2 Rd3 f1B Nf3 Qef2 Rd6 Bf4 Rg1 h1B Ne5 h2 Nc6 B1f3 Rg6 Qb7 Bda5 h1R Bd3 Bd1 Rg2 Qg1 Rge2 Q1f2 Bed8 Qh7 R2e3 Ng4 Bg5 Nh2 Rf6 Nf3 Re2 Qh6 Kd7 Nd2 Kc7 Rh4 Ree6 Qg6 R2e4 Qf5 Qa2 Be5 Bb5 Qfh3 Rh6 Rff4 Qc4 Qf5 Rhf6 Qh7+ Nce7 Bb2 Rd3 Qgg1 Rc6 Rfg4 Rfe6 Be5+ Rdd6 Bh2 Rb6 Qfg3 Kd7 Q1f2 Kc7 Qh6 Nc6 Rf4 R4e5 Qg6 Re4 Qh7+
1Rb1n2k/1P4b1/n2Rn1qq/2N1rQ2/bb3BK1/RN2q1bB/1n1N3r/2N2R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 Kf7 e4 Kg7 c4 a5 h5 d5 c5 g3+ Kf3 d3 b6 g2 b5 d4 c6 g4+ Kf2 g3+ Kf3 d2 e5 a4 e6 a3 e7 a2 e8R d3 c7 Qd4 b7 Ra5 b6 Na6 b8N Bb4 b7 Re5 Qc2 d1B+ Be2 d2 Qa4 Nf6 Nh3 g1Q Ba3 g2 Rd8 Ne8 Qa5 Ba4 Nd7 d1N Nd2 Nb2 h6+ Kh7 Rf1 a1B Nf2 Qb6 Bd1 Qg6 Nd3 Qc5 Be2 g1B Rh3 Bh2 Nb3 Bg3 Ndc1 Qd4 Ndc5 Qe3+ Kg2 Kg8 h7+ Kg7 Rd6 f3+ Kh1 f2 Kg2 f4 Bg4 Rg8 Be6 Kh8 Qb5 Qh6 Qd3 Rgg5 Qf5 Rh5 Bd7 Qd4 Kf3 Qe3+ Kg4 f3 Rfd1 f1Q Re1 Qh1 Rf1 f2 Be6 Bcd7 c8N Qg2 Nb6 Bc8 Nc4 Qg1 Ncd2 Qg2 Rg1 f1N Rgh1 Bf2+ Rg3 Rh2 Bd7 Qc6 Rh3 Ng3 Rf1 Nh5 Rf3 Kg7 h8R Nf4 Rh3 Bg3 Rf8 Nec7 Rd8 Ne8 Be6 Bd7 Rb8 Bc8 Bd7 Bc3 Bb4 Ne6 Ba5 Bb4 Bd8 Qg2 Bg5 Kh8 Bf4 Qd5 Bc6 Qdd3 Bg2 Bh4 Rhf3 Bg3 Bh3 Qde4 Qh5 Qeh7 Qf5 Q7g6+ Qg5 Nc4 Rc6 Qg1 Nd4 Rf5 Ra3 Qe3 N4b3 Bg7 Rb6 Re5 Rd6 Qf6 Qh5 Nb2 Qf5 Qfg6+
QBbn2R1/rP2N3/q2bNn2/1R2b2k/3n2Rq/r1Kb2b1/N3r1N1/r3RB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 e4 Kg6 c5 d5 b6 d3 e5 f3 e6 a4 e7 f2 e8N d4 c6 a3 b7 a2 c7 g3 b5 f4 b6 g4 Nc3 g2 Nd6 f3 Ne8 g3 Ng7 Rh7 Nb5 Nc6 b8N Bd6 Nh5 Nf6 Bb2 Ra3 Nh3 g1B Ng5 g2 Qa4 Bgh2 Ne6 g1N Rb1 a1B Qa8 Bhg3 Nc3 Ne2 Na2 Qe7 Re1 Nd8 Nhf4+ Kh6 Ng2 Kh5 Nc6 Rf7 Kd1 d2 Kc2 d1R Rg1 Rb1 Kd2 d3 Be5 Nd4 Bf4 Bb2 b7 Ra1 Be5 Rf8 Bf4 Re8 Be5 Qh7 Ne7 Ra7 Nc1 R1a3 Na2 Bd7 c8R Qe4 Rc4 Bc8 Rb4 Qg4 Be2 f1Q Rb5 f2 Bf4+ Bc5 Bb8 Bc3+ Ke3 d2 Kd3 d1R+ Kc4 Ra1 Kd3 Kh6 h5 Qh4 Kc4 Kh7 h6 Bcd6 Nf5 Kg6 h7 Bb2 h8R Bc3 Rf8 Re7 Bd3 Kh5 Rg8 Qe2 Rg4 f1B Rg8 Bcb4 Rg4 Bde5 Rg8 Re8 Ne7 Bd6 Rg4 Qd2 Be2 Qa5 Bd3 Qa6 Rg8 Ra4+ Kc3 Ra5 Bc4 Bd3 Rg4 Bb1 Bf1 Bd3 Rg8 Ra3+ Kb2 Rf8 Rb4 Bgf4 Ne3 Nd7 R1g4 Bg3 Ng2 Rf4 Rb5 Re4 Rc1 Nf6 Re1 Ra4 Kc3 Re2 R8g6 Ra5 Rg8 Ra3+
2bRnQN1/1rq4r/P3q1kB/2n2N2/1br1nB2/5RNq/2B1qBN1/4Knb1 w - - 0 1 illegal: No possible last move
3rR3/1nq1BP1N/RN3Nq1/3nrBn1/Bq1r1r2/3N2Qb/kB4b1/b5Kn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Ke6 f4 Kd5 Kf2 h5 f5 e5 g5 a5 c3 e3+ Kg2 d3 f6 Kc4 g6 d5 b6 a4 b5 e4 f7 d4 g7 a3 b7 a2 b6 h3+ Kh2 e2 Bb2 e1N Bc1 e3 Qe2 Kb3 c4 h4 c5 d2 c6 d1R c7 d3 Qd2 e2 Nf3 Ra5 Kg1 h2+ Kf2 h3 Ng1 Nf6 g8N Rh4 Nc3 Re5 Qg5 d2 Nf3 Nbd7 b8N Bg7 b7 Nd5 Bb2 Rf4 Ne4 Nc5 Qg3 Bd7 c8B Qc7 Rg1 h1B Ng5 h2 Nh7 Bh3 Ngf6 B1g2 Nbd7 Bh8 b8B Nb7 Nb6 Bg7 Rb1 a1Q Bf5 Qa6 Ra1 Qd3 Ra6 Bh8 Bd7 Qg6 Ba4+ Ka2 Rh1 Nc2 Ba7 Nd4 Rg1 Ne6 Bb8 e1R Bd3 Ng5 Bf5 R1e4 Re1 h1N+ Kg1 Rd4 Ba7 Rc1 Bb8 d1Q Ba7 Qd2 Bb8 Re2 Ne5 Rd1 Nd3 Re5 Ba7 Qb4 Bb8 Qc1 Bd6 Qc7 Be7 Rc1 Bfd7 Rc6 Bf5 Rd6 Rc1 Rd8 Rc3 Qcd6 Rc8 Qc7 Rca8 Rd7 Rf8 Rd8 Re8 Re2 Bc1 Rc4 Nfd7 Ba1 Ndf6 Re5 Bb2 Rcd4
1r1KNbNk/3N2Nb/2B1r2R/1BQn1P1r/1Bbn1n2/1rq3R1/1r6/Bb5r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg7 c4 d5 g4 h5 b4 a5 c5 e5 c6 d3 Kc3 a4 b6 d4+ Kc4 e3 Kb5 h3 g5 h2 b7 h4 c7 a3 Kb6 h3 b5 a2 g6 e2 Nc3 e1R Qh5 e4 Nb1 d2 Ba3 d1B Qd5 d3 Nc3 e3 Qd7+ Ne7 Qc6 d2 Ne4 e2 Nd6 Bc2 Bb4 d1B Qc5 Rh5 Nf3 Bb1 Nh4 Kh8 Ne8 Bdc2 Nf5 Qd3 Nfg7 Nbc6 b8N Nd4 Nd7 Ba6 c8B Rb8+ Kc7 Nd5+ Kd8 Qc3 b6 Bc4 b7 Be4 Rg1 h1R Rg3 h2 Bg2 Rhf1 Bf3 h1R f5 Rf2 Bg2 Bec2 Be4 B2b3 Bd3 R1h3 Be4 Reh1 Bg2 Nf4 Bc6 e1R Bb5 Re6 Bc6 Ra8 b8B Rb2 Be5 Rb8 Bb5 Bbd3 Rd1 a1N Rd2 Be4 Rh2 Bb1 Bf6 Nac2 Be5 Rbb6 Bb7 Ne3 B7c6 B3a2 Rg5 Rf3 Rg3 Ned5 Bf6 Qc2 Be5 Rfb3 Bf6 Qc3 Rhh3 Rh7 Rh6 Rbe2 Kc8 Qc1 Bd8 Nf3 Rh5 Ra3 Bd2 Rf6 Ne6 Ne7+ Kc7 Rb8 Be4 Bd5 Bc3 Bac4 Ba1 Nd4 Bf3 Qc3 g7+ Kg8 Rh2 Rb2 Bg2 Rab3 Rh5 Bf3 Rh2 Bh5 Bgc6 Rh8 Rhh3 Kh7 g8N Rg6 N6g7 Re6 Ne5 Ned5+ Kd7 Nc2 Ba5 Nd4 Bb4 Rb6 Nh6 Bg6 Kd8 Rb7 Nd7 Rb6 Nf7+ Kg8 Rh5 Rh6 Rh4 Bh7 Rh2 Rh4 Nh6+ Kh8 Ng8 Rh3 Rg6 Rh6 Rh3 Rh4 Rhg3 Rh5 Rh6 Rb8+
r1krbQn1/2Br1nnq/K4bR1/1N5B/NB4r1/rRB1R2p/2RPq3/3q4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 Ke2 c5 g4 f5 b4 h5 b6 a5 g5 f3+ Ke3 a4 g6 c3 Kd3 c2 Kc4 a3 Kb5 f2 b7 c4 g7 c3 e5 a2 Bg2 f1Q+ Ne2 h3 Bf3 h2 Rg1 h1R Rg2 f4 Rf2 h4 Bd5 f3 Bb3 h3 Na3 Nc6 b8B Rg1 Bb2 c1Q Bc7 c2 Bc3 Qe7 Bf7 Nd8 Bh5 Nf7 Kb6 Rg5 b5 Rb8+ Ka7 Rg2 b6 Rg4 b7 Qb1 Qe1 c1R Ka6 Qh7 Nb5 Qe8 Bd6 Be7 Bdb4 Bf6 e6+ Kd8 Rg2 f2 Rb1 Bd7 Rb3 Ra1 Qc1 Qd1 Qa3 f1N Rg1 Bc6 e7+ Kd7 Rg2 Ng3 Rg1 Rd8 b8B Kc8 Bc7 Nf5 Rf1 Rd7 Rf3 Rb1 Re3 Ngh6 g8R a1R Rg6 Ng8 Ka5 Ng7 Ka6 Qd8 e8R Ra2 R8e7 Qe8 R7e4 Qe5 Rc4 Qh2 Nf4 Qhe2 Nd3 Raa1 Nb2 Ra2 Qa4 Ra3 Rc5 Ngh6 Qa5 Rhd8 Na4 Ng8 Qb6 Rd6 Rc4 Be8 Rc6 Rd3 Qc5 R3d7 Qf8 Qee1 B3e5 Be7 Bbd6 Ngh6 Rbd3 Rc3 Nd4 Rb8 Nb5 Ng8 Bb4 Ra3 Rb3 Qee2 Rc2 Bf6 Bec3 Ra8+
Rqnr1BKR/2N2b2/BB1BR2P/1b3bN1/1q1p4/1kbq1n2/3Q1n1b/3Rr3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 h4 Kd5 b6 Kc4 e4+ d3 b7 f5 h5 d5 c3 a5 h6 g5 b5 a4 b6 g3+ Kf3 d4 e5 a3 e6 a2 e7 g2 e8R g4+ Kf2 f3 Kg3 f2 Kf4 g3 Ke5 f4 Ne2 g1Q Be3 f3 Qd2 g2 Na3+ Kb3 c4 Bf5 c5 Bd6+ Kd5 Na6 b8B Bh2+ Bd6 Qb8 c6 Nc5 c7 Ne4 Bef4 Ne7+ Ke5 Ra7 b7 Nc8 Re6 Rd8 Nb5 Ra6 Rd1 a1B Bf8 Bc3 Ng3 Ra1 Be2 f1Q Bg5 Ncd6 c8R Nf2 Kf6 Qe1 Kg7 Qgf1 Kh8 g1N Kg8 Qh3 Ne4 Qg3 Rc7 Nc8 Rh7 Qh3 Rh8 Rb1 Qe3 d2 Nc7 Qhf1 Ba6 Qd3 Bf4 Rc1 Bd6 Ra1 Rc1 d1B Ng5 Bc2 Rd1 Bb1 Ba3 Ba2 Bc5 Qed2 Bb6 Qb2 Rd2 Re1 Rd1 Qa3 Qf4 Qb4 Ra1 Ng4 Rd1 f2 Qd2 Nf3 Rg1 f1B Rg2 Qa8 b8B Qa7 Rge2 Nf2 R2e5 Qb7 Ra5 Be2 Nd5 Qa8 Bd6 Qb8 Nc7 Qe4 Bb7 Bb5 Ra8 Qd3 Ba6 Ka3 Qe2 Bd5 Qd2 Kb3 Nh3 Bdc6 Ng5 Be8 Bfe7 Beg6+ Bf8 Bf7+
1n2Qbb1/2K1nrNb/2r2R1p/B1r3qN/2Pk1N2/2RrR1q1/1R2BN2/rq6 w - - 0 1 illegal: No possible last move, all moves rejected
5Q1r/rBR1bK2/N1r1p1B1/k2n1bb1/3Nn3/4BN1P/N2qn1Bn/4nqR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 d5 Kd3 Kd7 a4 Kc6 c4 Kb6 f4 g5 f6 g3 f7 g4 h3 b3 c5+ Ka5 c6 b5 c7 g2 f5 g3 f6 b4 Bf4 b2 Qe1 Bf5+ Qe4 b3 c8B e6 Be5 Nd7 Nc3 b1R Na2 b2 Nf3 g1N Bf4 g2 Bb7 Ne2 Rg1 Ne7 Be3 Rc1 Rb1 Rcc8 Rc1 b1N Rc7 Bh6 f8N Nd2 f7 Ra7 Ng6 Bg5 f8N Nf6 Nf4 Ng4 Nd7 Nh2 Nb8 Qd7 Rh1 g1B Bg2 Bf2 Rf1 Bfh4 Na6 Qd6 Rg1 Qd8 Kc2 d3+ Kb2 d4 Qd5+ Kb6 Qd6+ Ka5 Be4 Nd5 Qf8 Nc4+ Kb3 d2 Kc2 Na3+ Kd3 Nc2 Kc4 d1N Kc5 Nc1 Ne2 d3 Ned4 d2 Kc6 Qf6 Kd6 N1c3 Bd3 d1Q Be4 Bg4 Bg6 N1e2 Kd7 Qf5 Kd6 Ne1 Kd7 Nf6+ Ke7 Ncd5+ Kf7 Qd2 N6b4 Ra6 Rc4 Kb6 Ne5 Qf1 Nef3 Bh6 Rc5 Ne4 a5+ Ka7 Rc4 Be7 Rc5 Rc7 Rc3 Rb7 Rc7 Rc6 a6 Kb6 a7 Bf5 a8B Bhg5 Na6 Ra7 Bb7 Ka5
qB3B1R/3KQ3/r1pb3P/N1nRN1br/nR2r2r/q1r1q3/2B1b1R1/k2B4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 b4 Ke6 h4 Kd5 d4 f5 e3 a5 h5 g5 b6 f3 Kg3 a4 b7 c3 b5 f2 b6 c2 Ba3 c1B Qd2 c6 Rh2 f4+ Kg2 f3+ Kg3 Nf6 Ra2 Nfd7 Qc3 Ra6 Bb2 a3 Qe1 Nc5 Bd3 f1R Nd2 f2 Nb3 Na4 Nf3 Bd6+ Ne5 Nd7 b8R Rh1 b7 f1R Na5 Rf4 Bc2 Ndc5 h6 Re8 Rd2 Rh5 Bc3 Bf5 Bb4 Bd3 Rg2 Bf1 Rb2 a2 Ba3 a1R Rb4 Be2 Rc8 Bd2 b8B Rc1 Bd1 Re6 Bc2 Qe7 Rh8 Qb7 Bd1 Rc3 Bc2 Qa8 Bd1 Ke4 d5+ Bc4 Nf3 Kd3 e4 Re8 e5 Re7 e6 Be3 Be2+ Kc2 Ne5 Re8 Bf3+ Be2 e7 Bc1 Bb2 Re4 Ba3 Rf8 e8B Rff4 Bg6 Bd2 Bh7 Bc1 Nb3 Kb1 Na5+ Ka1 Bg6 Rd4 Bc2 Rfe4 Qh1 Rdc4 Qh4 Be3 Kh2 g3+ Kh3 Bf4 Kg4 Be3+ Kf5 g4+ Kf6 Bf4 Kf7 Rcd4 Qf6 Bg5 Ke8 Rdc4 Qe7 Rcd4 Rh2 g2 Kd8 g1Q Rg2 g3 Bg4 Bf1 Bgd1 Qe3 Kc8 Be2 Kd8 Reh4 Kc8 Bc7 d6 Rde4 d7 Bd6 d8R Qf3 Rh2 g2 Rd7 g1Q Rg2 Bc7 Rd5 Bd6 Kd8 Ne6+ Kd7 Qge3 Rb2 Qc1 Bc5 Qfe3 Rb4 Qa3 Qd8 Bc7 Bf8 Bd6 Qe7 Nec5+
3qQ2r/q1n2P1n/n3r2B/2brNN1b/2B1N3/rR2pBBN/2k5/r1b2KR1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kf6 f4 h5 c4 d5 g5+ Kf5 c5 a5 g6 e5 b6 d3 b5 d2+ Ke2 e3 c6 Ke4 f5 h3 c7 h2 f6 a4 g7 d4 f7 h4 b7 h3 b6 a3 Bb2 a2 Ba3 Nf6 g8B Bg4+ Nf3 Bh5 c8N Bc5 Ne7 Nh7 Bb2 Ra3 Rg1 h1R Qa4 d1N Nc8 h2 Qe8 Na6 b8B d3+ Ke1 e2 b7 Nc3 Nbd2+ Ke3 Ne4 Nb5 Nfg5 Nbc7 Rb1 a1Q Bc1+ Kd4 Nh3 d2+ Kf2 d1R Bh6 Kd3+ Kg2 Re1 Ncd6 Kc2 Nf5 Rd1 Rb6 e1B Bc4 Rd5 Kf1 Bd2+ Rb1 Bc1 Rb3 Na8 Bd6 N8c7 b8N Qd4 Nd7 Qe3 Nef6 e4 Bg3 Qd4 Ne5 e3 Bb5 Qa4 Bc4 Qa5 Ne4 Qb6 Qc6 Qa7 Qa4 Ng5 Bh7 Re8 Qb5 Re6 Bg6 Nh7 Qe8 Bb2 Bg5 Nf8 Nhf2 Be2+ Kg2 Re7 Bh5 Re6 Ra1 Rhd1 Rb1 h1R B5f4 Rh4 Nh3 Rc1 Bg4 Rh8 Bh6 Nh7 Bh5 Rcd1 Ra1 R1d4 Rh1 Rd1 Rg1 Rda1 Bg4 Bd1 Kf1 Bc1 Bf3 Qaa8 Bg2 Bh5 Bf3 Qa7
R1QBk3/1R1p1q2/2bK1bB1/R1n3r1/2rrr2B/1rn2NN1/Pq1B2R1/1n5q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 Kd3 h5 Ke4 e5 Kd5 b3 g4 h3 c4 d3 f4 b2 c5 h2 g5 b4 g6 e4 c6 b3 c7 d2 f6 h4 g7 e3 f5 e2 Nc3 b1R Ke5 e1R+ Ne4 h3 Bg2 b2 Nf3 Bb7 c8R Ra4 Qc2 d1R Bd2 Ne7 g8R Rc4 Kd6 Bc6 Ng3 Na6 Ra8 Rh5 Rg6 Bg7 f7+ Kf8 Bf1 Ree4 Bd3 Nc5 Rg1 h1Q Rg2 h2 Rg5 Nd5 Qc3 Rbc1 Rb1 Qf1 Bc2 Rb4 Qc4 h1Q Qa6 Bf6 Qc8 Rhh4 Rh5 Rhg4 Bd3 Kg7 f8B+ Kf7 Be7 Qh8 Bd8 Rcc4 Rg5 Rb3 Bc2 Bd4 f6 Nc3 Rf5 Kf8 f7 Bf6 Rh5 Rg5 Bd3 Kg7 f8B+ Kf7 Bfe7 Ke8 Bc2 Re3 Bf5 Ree4 Bh7 Qg7 Bg6+ Qf7 Rc1 b1N Rc2 Qe2 Rb2 Ra3 Rb6 Rb3 Rb7 Bd4 Bf4 Qb2 Bd2 Rgg4 Bh4 Bf6 Rf5 Rg5 Rd5 Nd3 Rdb5 Nc5 Rba5 Nd5 Bc1 Rdd4 Bd2 Ndc3+
1q1QB3/1rPbN3/Nq4B1/n3R1b1/np2bK1n/6Rr/n2BN2B/k4Nqn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 a4 Kf6 c4 Ke5 g4 d5 f3 h5 a5 b5 c5 b3 f6 h3 c6 h4 a6 d3 Ke3 d4+ Kf2 h2 g5 b2 g6 h3 Kg3 d2 c7 d3 f4+ Kd4 a7 e5 f7 e4 g7 e3 f5 e2 f6 e1Q+ Kf4 Bd7 Na3 Kc3 Qe2 d1N Rb1 d2 Qe6 Be7 f8B Nh6 g8N Nc6 f7 Nf5 Qd6 Rb8 a8B Bf6 Nc2 Na5 Bc6 Rb7 Ne7 Nh4 Ne3 Qb8 Bd3 b4 Ra1 b1Q Bg6 Nb2 Nf1 d1N Bd2+ Kb3 Qd4 Na4 Ne2 Ndc3 Rg1 Kb2 Rg3 h1N Bg7 h2 f8N Qd3 Ne6 Qa6 Nc5 Qb6 Na6 Qd1 Qd6 Na2 Rc1 Rh6 Rc5 Ka1 Re5 Qc1 Qd5 Qcc5 Qg8 Qg1 Qd8 Nf2 Rd5 h1B Re5 Be4 Bb5 Nh1 Bf8 Bg4 Bbe8 Rh5 Nc6 Bd7 Bd6 Nf5 Ne7 Rh3 Bc5 Nh4 Bce3 Qh2 Bg1 Qg2 Bh2 Qgf2+ Rf3 Qg1 Rg3 Bg5+
1r1RQ1B1/qp3BN1/q1NP3b/2n4n/RKn2qb1/n6k/bB2N1nN/1B5r w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Kd7 g4 h5 e4 f5 d4 c5 Kd2 h3 a5 c4 d6 Ke6 e5 c3+ Kc2 f3 Kb3 c2 g5 f2 d7 h4 a6 h2 a7 f4 d5+ Kf5 e6 h3 d6 f3 g6 Kg4 g7 Na6 e7 Nc5+ Kc4 b3 e8B b2 Bh6 c1Q+ Qc2 Rb8 a8N Nf6 g8B Qf4+ Kc3 Nh5 Bd5 Qb6 d8N Qa6 Bd3 f1N Bg7 f2 Bg8 Ne3 Nc7 f1N Nd2 Ng2 Bef7 Nfe3 Ndf3 Nc4 Qa4 b1N+ Kb4 Nba3 Bb2 Bh6 Qe8 Kg3 Bb1 Bg4 Nce6 Qa7 Ne5 Rh7 Ne2+ Kh4 Rg1 h1Q Rf1 h2 Nf3+ Kh3 Ng7 Rh8 Rf2 Qf1 Nc6 h1B Nh2 Ne5+ Ned4 Qfa6 Rc2 Nec4 Ne2 Ne1 Rc3+ Bhf3 Re3 Ng2 Re7 Bd5 Rd7 Nb5 Ra4 Nba3 Qe6 Na5+ Qe4 Ba2 Rd8 N5c4 Bh7 Re8 Bhg8 Re5 Qg6 Rd5 Qe6 Rd1 Qe8 Rh1
1rn1nRQ1/1pq2R2/8/Kn1b4/1nn2Rr1/B5Bk/Nn1nPbRr/1NB4B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 g4 Kd7 a4 c5 d4 f5 Kd2 h5 a5 b3 Kc3 h3 a6 b2 g5 f3 d6 Ke6 g6 c4 Kb4 f2 g7 h4 a7 f4 d5+ Kf5 Qd2 Kg4 Ra4 c3 Kb5 c2 d7 h2 d6 h3 Qc3 Na6 Bd2 c1N Qd3 Ne7 Ra5 f3 Ra4+ Nb4 Bg5 Rg8 Ra1 Rb8 a8R Qc7 d8B Be6 d7 Bd5 Ka4 Nc8 Qa3 Ncd3 Ra2 Bc5 Nc3 b1N Qb3 Na3 Bg2 f1N Bc1 f2 Nf3 Nd2 Bh4 f1N d8B Ndc4 Nd2 Nb5 Bde7 N4b6+ Ka5 Nb2 Bg3 Bf2 Ndb1 Nd2 Rf1 h1N Ra4 h2 Bf3+ Kh3 Na2 Bd4 Bc5 Nf2 Bh1 Nfe4 Rf7 Bf2 Bf8 Ned6 Be7 Nc2 Raf4 Ne8 Ba3 Nb4 Qc4 Rh8 g8R Rh4 Qd3 Rg4 Qg6 Qc5 Rgf8 Qd6 Qg8 Qc7 Be4 h1R Ra6 Rh2 Bh1 Nd7+ Rb6 Qd6 Rc6 Ndb6 Rc3 Qc7 Rcf3 Bc5 Rf2 Bd4 Rg2 Bc5 Qg7 Bf2 Qg8 N6c4+
5B2/Rbn1nr2/bQBr1q2/4r1pn/N4N1q/1NbR1BB1/knNP4/1qK5 w - - 0 1 illegal: No possible last move, all moves rejected
R2nRN2/2r1qqNP/r1RBq2K/7B/2bR4/1Npn1Q2/1rk1n3/3N1bbr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 b4 a5 d5 Ke5 d6 g5 h5 f3 Kg3 c3 h6 c4 b6 c2 b7 a4 b5 f4+ Kh2 a3 b6 f2 d7 g3+ Kh3 f3 Kg4 g2 Kh5 g4 h7 a2 Ba3 c1R Be2 f1Q Rh2 f2 Kg6 g3 Qa4 Kd4 e5 Nf6 e6 Nh5 e7 Nf4+ Kg5 Nc6 b8N Nd3 b7 Ra6 Nh3 g1R Nd2 Kc3 Bh5 g2 Qa5+ Kc2 Nb3 Rh1 Qd5 g1N Bd6 Ne2 Qf3 c3 Kg6 Rb1 e8N Rb2 Ng7 Qe7 d8R Be6 Kh6 Bc4 Nd7 Rg8 Ra8 Nd8 Rd1 a1Q b8R Qa2 Rb6 Qe1 Rc6 f1B Nf2 Qf7 Rh4 Be7 Rd4 Bh4 Nf5 Rg7 Nf8 Bg3 Ra1 Bh2 Nd1 Bg1 Rb8 Qa3 Ra8 Qc5 Ra5 Qb6 Re5 Qbb7 Re8 Qe6+ Ng6 Rc7 Ng7 Qf7 Nf8 Qc8 Be5 Qh4 Bg3 Qhe7 Bd6 Qce6+
nq1r1k2/Q1BrRr1b/4R3/RKbn1nnn/3b3B/1PpRNN1B/6B1/n7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 a5 Kd2 c5 Kc3 h5 e4 f5 g4 a4 e5 a3 b3 h3 d5 a2 e6 f3 e7 h2 d6 f2 b6 f4 g5 h4 g6 f3 g7 h3 b7 Rh7 Nd2 Nh6 g8R Bf5 Qe1 Nd7 b8B Nf7 Rg5 Nb6 Rg6 Ng5 Rb1 a1N Bd3 f1R Ba7 f2 Re6 Qb8 d7+ Kf7 Kb2 c3+ Ka3 c2 d8R c4 Kb4 c3 Be4 Kg8 Ba3 c1B Nc4 Be3 Bg2 Bd4 Kb5 Bc2 e8B Bfc5 Rc1 Rd7 Nf3 Bh7 Qe3 Kf8 Rg1 h1N Re1 h2 Re7 Qf4 Bb8 Ng3 Bc7 h1N Re2 Nf5 Bh3 Nf7 Rg5 Nhg3 Bc1 Rc8 Bd2 Nh5 Be1 Na8 Re6 Re7 Rdd6 Rd8 Bc6 Red7 Rd5 Bf6 Rd3 Bfd4 Re7 Rg1 Bd5 f1N Bh4 Qg3 Qf2 N1e3 Bb7 Nd5 R2e6 Re1 Ne3 Rf1 Qa2 Qe5 Qa7 Qh8 Rg2 Qe5 Ra2 Ng5 Ra5 Nfg7 Nd2 Rf7 Nf3 Nf5 Ne1 Ndb6 Bbg2 Nd5 Nf3 Qh8 Bcg3 Qe5 Bh2 Qc7 Bf4 Qc8 Bc7 Qb8+
NNRK3n/bb3b2/rbqkN1B1/1R2n1R1/1n3BP1/1Q2bR2/p1bN3q/2r5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 e5 g4 Ke7 c4 a5 b4 d5 f4 h5 c5 a4 f5 d3+ Ke3 d4+ Kf2 d2 b6 h3 Kg3 h4+ Kh2 e3 c6 d3 b7 a3 b5 a2 c7 e2 b6 e1B f6+ Kd6 f7 e4 Ne2 e3 Na3 Be6 c8R Bh6 f8R Ne7 Bg2 Qc7 Nc3 e2 Rf6 Nbc6 b8N Ra6 b7 Bf2 Rff8 e1B Rf5 Nb4 Na4 Bf7 Rg5 Ng6 Qb3 d1B Be4 d2 Nb6 Bc2 N8d7 d1N b8N Ne3 Rf1 Qc6 Na8 Nc4 Bf4+ Nce5 Nf8 Bb6 Ne6 Bef2 Nb1 Rd8 Bd3 Nh8 Bg6 Rd7 Nd2 Rc7 Rab1 Ba7 Rh5 Bfb6 Rf3 Bg5 Bg3 Bge3 Bf4 Bbd4 Rg5 Bdb6 Kh1 h2 Kg2 h3+ Kg3 h1B Kh4 h2 Kh5 Ke7 Kh6 Bg2 Kg7 Kd6 Kf8 h1Q Rb2 Qh2 Rb1 Qc4 Rb2 Bg8 Ke8 Bf7+ Kd8 Qc5 Rf2 Bb7 Rf3 Qc6 Qc3 Nd3 Rb5 Nb4 Qb3 Bf5 Rf2 Qf3 Rf1 Rc1+ Nec7 Qc6 Rf3 Bbc5 Ne6 Bc2 Bf5 Bcd4 Bg6 Bdb6+
7N/B3Nb1k/R1b3q1/1RrnNr2/2p2B2/b1Pn1N2/2n1BK1b/r1b1Q1rB w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 g4 f5 d4 Kf7 b4 Kg7 b6 c5 b5 e5 b7 a5 b6 h5 g5 h3 c3 h4 g6 c4 d5 a4 d6 h2 d7 h3 Qb3 a3 Ra2 e4 Rf2 f4 Qb2 e3 Qb5 a2 Qf5 a1B Rb2 e2 Qa5 f2+ Kd2 e1B+ Ke2 f3+ Ke3 Qf6 d8N Ne7 Qa3 Nd5+ Ke4 Na6 b8N Nab4 b7 Nc2 Nd2 Rh5 Be2 f1R Rb5 f2 Nf7 Be6 Ndf3 Bb2 Qe7 Ra1 Bf4 Bc1 Nh8+ Bf7 Ne5 Qb6 Qe6 Bfa3 Ngf3 Rg1 Nbc6 f1R b8B Bg3 Ba7 Kg8 g7 Kh7 Ne7 Rf5 Qc8 Qg6 Qc5 Rd1 Qf2 Rd3 Qe1 Rd1 Bg5 Bgf4 Bh6 Rgg5 Rg1 h1B Rg4 Rh5 Bg5 Bg3 Bf4 h2 Rh4 Bg2 Rh3 h1N g8B+ Kg7 Rh4 Bh2 Bh7 Rhg5 Rh6 Rh5 Qh4 Rg1 Qe1 Nce3 Bg8 Nf2+ Kd4 Nd3 Bh7 Qg5 Ra6 Qh6 Bg6 Rhg5 Bh5 Qg6 Bg4 Kh7 Bh3 Bf1 Bg2 Nc2+ Ke4 Rh5 Bh1 Bg2 Qf1 Nc7 Nd7 Ncb4 Qe1 Rf6+ Kd4 Rg5 Nd2 Rc5 Ke3 Bc6 Ne5 Ncd5+ Kf3 Nb2 Kf2 Nc2 Ndf3 Rf5 Rb7 Be6 Rb4 Bf7 Rb5 Nd3+
QNR5/1B4Nk/RqqPnK1b/2Bn4/1r2R1r1/B2r3r/RB2p3/2b2brr w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 a5 b4 h5 d4 h3 f4 h4 g4 h2 f5+ Kh7 f6 c3 d5 c2 g5 h3 b6 c4 b7 c3 b5 a4 b6 a3 f7 e3 Ra2 e2 Bg2 e1R+ Ne2 Bh6 f8B Na6 b8R Rg1 b7 Nc5 Nd4 Ra4 Nc6 Nf6 Qf3 Qb6 Bb2 c1Q Ra8 c2 b8B Rg8 Nd2 Rb4 Nb3 Ne6 Ba7 Ba6 Nbd4 Bf1 Nb8 Rg7 Nf5 Rg8 d6 Nd5 Qe4 Rg7 Bf3 Rg6 Bg7 Rg3 Rg1 h1R Rg2 h2 Re2 Rh3 Bf6 Rg1 Ng7 h1R Bg2 Qb7 Bc5 Qb6 Ra6 Rd3 Qf3 Rh3 Re4 Rgh1 Ra1 a2 Ba3 Qe3 Kf5 c1B Bfb2 Qf2 Ke5 Qc2 Qf8 Qa4 Qc8 Qd7 Qb7 Qdc6 Qa8 Rf6 Bf3 Rf4 Bg2 Rg4 g6+ Kh8 Ne8 Kg8 g7 Kh7 g8R Rg1 Ng7 Rgh1 Rb1 a1R Bf3 Nef4 Kf5 e5 Rc8 Ne6 Bg2 Bce3 Re1 Bc1 R4e2 e4 Ke5 Ne7 Kf6 e3 Rf2 Qcc7 Bb7 Qcc6 Ree2 Rb1 Rf4 Rhg1 Rc2 e2 Re4 Rgh1 Ba1 Rhg1 Ra2 Nd5+ Kf5 R1b3 B1b2 Rhh1 Ke5 Rdh3 Kf5 Rbd3 Ke5 Ndf4 Kf6 Nd5+
kNr3Q1/Bn4q1/bn3bn1/2q2q1B/K2PB3/2R3n1/N2r1N1p/qnBR1N2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 d4 f5 Kd2 a5 Kc3 c5 b4 Kc7 g4 Kb7 g5 h5 g6 h3 e5 a4 g7 f3 b6 h2 e6 h4 b5 f4 e7 f2 e8N h3 Nc7 f3 Bg5 a3 Qb3 a2 Bh4 Nd7 Qc2 Qg5 Qe2 Be7 Qe6 Bf6 Na6 Ne7 g8B Ng6 Bd3 f1Q Bc2 f2 Kb2 c3+ Ka3 c4 Bf5 c2 Bd3 c1N Ka4 c3 Bf7 c2 Nd2 Nb3 Rc1 Na5 Nb4 a1Q+ Na2 Ra7 Rd1 c1Q Be4+ Kb8 b7 Qcc5 Rc1 Qd3 Qd5 f1N Rc3 Qdg3 Qc4 Qgf5 Bg5 Ra6 Qd5 Ka7 b8N Nb7+ Kb3 Rg8 b6+ Ka8 Be8 Rh8 Qg8 Qge5 Bf7 Qee7 Be8 Qg7 Bh6 Ra5 Be3 Rb5+ Ka4 Rb2 Bh6 Nf4 Bh5 Ng6 Nc4 Rf2 Ne3 Nd2 Nf1 Nb1 Bc1 Rc2 Ne2 Rb2 Nf4 Rd2 Rg1 h1N Nd3 h2 Nf2 Nde5 Ng3 Nc4 Rd1 Ne3 Nf1 Ng3 Bd3 Nd5 Bc2 Nd6 Be4 Ba6 b7+ Ka7 Qe6 Rc8 Qg8 Nb6+ Kb3 Na8 Ka4 Nc7 Nd7 Nd5 b8B+ Ka8 Ba7 Nb7 Nb8 Nb6+
4QBrn/1b2q3/q1R3b1/rbRp3P/B2k2Nb/3BN2r/1nr3Br/KR3R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 e4 Ke5 h4 d5 c4 g5 Kc2 a5 Kb2 f5 c5 d3 b6 d2 c6 g3 b7 a4 b5 f3 c7 f4 b6 f2 Ba6 f1R Bd3 g4 Ne2 Nd7 b8R g2 b7 g1R Bb5 a3+ Ka2 f3 Bc4 f2 Qa4 d1B Ng3 Bc2 Nd2 Rg2 Nh5 g3 Nf6 Nc5 Rb1 Kd4 e5 Ne7 e6 Ng6 e7 Nd3 e8B Be7 h5 Rg8 Ng4 Bh4 Rb6 Nh8 Qb5 Rd1 Nf1 Rd2 Nfe3 Rh2 Rf1 g2 Rd6 Re2 Bd2 Rh3 Bb4 Ra6 Rh6 Qf6 Bc6 g1R Bf8 Rg2 Ra8 Qe5 b8R Rgh2 Rb6 Bb7 Rc8 Qe8 Qa4 Ra8 Rbb1 Nb2 Re6 Bg6 Bd3+ Kc3 Rd6 Rc2 Qe4 Qd8 Qe8 Kd4 Bd7 Qe7 Ra6 Rc5 Ra5 Rc2 Rc5 Rg3 Ba4 Rgh3 Bb3 Rc3 Bd1 Ra7 Bf3 Rc2 Bg2 Ra6 Ra8 Ra7 c8B Ra4 Bd7 Ra7 Kb3 a2 Rac8 a1Q R8c7 Qa5 Ba4 Qb5+ Ka2 Ra5 Ka1 Qa6 Rh1 Qe5 R7c6 Qe7 Bb5 f1B Rg1 Bc4 Rgf1 Ba2 Be2 Bc4 Bd3 Bb5
2b1bBNn/2N1bn2/nrRB1b1Q/P7/r3qRn1/1q1Bb1N1/1p6/B2k1KN1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 e4 Kd6 a4 g5 h4 b5 h5 f5 h6 c5 h7 f3 Nc3 f2+ Ke2 f4 Bd2 c4 Na2 c3 Rc1 g3 Nh3 g4 Rh2 b3 Bg2 f1B+ Ke1 b2 Qc2 b1Q Qb2 c2 Bf3 b4 Bh1 f3 Bh6 g2 Kf2 g1B+ Ke1 g3 Nc3 b3 Ne2 g2 Ng3 Be3 Ng1 Qe7 Rh4 Bb5 Rf4 Na6 a5 Rb8 Qc3 Rb6 Qd2 Be8 Bg7 Nh6 e5+ Kd7 d6 Kc6 d5+ Kb5 e6 f2+ Ke2 f1N d7 Nf7 d8N Nh2 d6 Ng4 d7 Qa2 Ba1 b2 Nc6 Qb3 d8B Qeb4 e7 Ka4 Ke1 Qe4 Bc7 Rg8 Qd6 Nh8 Qh6 Bg7 Bd6 Bf6 Nd4 Rg5 Nb5 Rh5 Nc7 Rh4 N1e2 g1B Kf1 Bgf2 Ng1 Be1 Bf3 Bb4 Be2 Bbc5 Bd3 Kb4 Be2 Kc3 Bc4 Kd2 Bd3 Bh5 e8N Bb4 Ng7 Be8 N7f5 Bbc5 Ne7 Bb4 Re1 c1N Ng8 Bbc5 Re2+ Kd1 Rc2 Ba3 Bf8 Bb4 Rc6 Bbe7 Bc4 Nd3 Bb5 Ng6 h8B Nde5 Bd3 Nf7 Bhg7 B7c5 Bd6 Ngh8 Be5 Bce7 Bf8 Rh5 Bd6 Rhb5 Rc2 Rb4 Rc6 Ra4
2r4N/1krR4/nrr2nbB/p2R1nn1/P6Q/BK1bq2B/N3R1BR/2q2n2 w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 h4 g5 Qb3 Bh6 Qf3 fxg4 Qd1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bb7 Be2 Ba6 Bf1 Bc8 d4 Kd7 Kd2 Kc6 Kc3 a5 b4 e5 f4 h5 a4 g2 d5+ Kb7 d6 c5 b5 g3 g6 e3 g7 e4 b6 h4 d7 e2 f5 e1R f6 h3 f7 e3 f8R e2 Ba3 h2 Bc1 Na6 Ra3 Qe7 d8B Nf6 g8B Ra7 Bb2 Bf5 Rb3 Nb4 Ra3 Bd3 Bh7 Qe3 Nh3 g1N Bg2+ Nf3 Bf1 g2 Ba1 g1N Be7 Nh4 Bg2+ Ngf3 Rd8 Nf5 Rd5 Rc8 Nf4 Nd2 Ng6 Nf1 Nh8 Ra6 Kb2 c3+ Kb3 c2 Nc3 c1R Na2 Rc2 Qd2 Rec1 Qe1 Rc7 Qh4 e1N Bg8 Nf3 Be6 Ng5 Bf8 Rb1+ Bb2 Ra8 Bh6 Rac8 Rg1 h1B Rd7+ Ka6 b7 Rcc1 b8R Rc4 Bgd5 Bhe4 Rg2 Rc6 Rf2 R8c7 Rbd8 Kb7 Re2 Rc2 Nc1 Rc4 Ra1 Rc2 Na2 c4+ Ka3 c3 Kb3 Rcc1 Rh2 c2 Re8 Ng7 Bh3 Bg6 Bdg2 Nf5 Re5 Rd1 Red5 c1Q Nc3 Rd2 Ra3 Rc2 Ra2 Ra1 Ba3 Rb6 Nd1 Rcc6 Re2 Ra2 Nc3 Rc2 Na2 R2c4 Rd8 Rc8 R8d7+ R6c7 Rb2 Rcc6 Re2 Na6+
b5k1/q2R2rq/Q2K2NR/prnPN1B1/1R4qn/3Br1B1/8/BqRqb1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 Kf7 g4 h5 d4 a5 e4 c3 e5 h3 d5 c2 g5 c4 b6 h2 b7 h4 b5 c3 b6 h3 Bb2 c1Q Qe2 c2 Qg2 Qc7 Bd3 Rh7 Nc3 Ne7 e6+ Kg8 g6 Nd7 b8B Bb7 g7 Nc5 Nb1 Ng6 e7 Qd1+ Ne2 c1R e8R Rc3 Ba7 Rb8 Qf1 Ba8 b7 Qd7 Re7 Nh4+ Kf2 f3 Kg3 f2 Kf4 Q7a4+ Ke5 f4 Na3 f3 Rc1 Qg4 Nf4 Rb3 Qe2 f1Q Kd6 f2 Ba1 Qfg1 Ng6 f1R Nc4 Re8 b8B Rb5 Bc7 Qe3 Nce5 Rg1 Bab8 Qf2 Bd8 Qe3 Kc7 Qf2 Rd7 Qf7 Nc6 Re3 Bg5 Be7 Qf1 Bf6 Kd6 Bc3 Nce5 Be1 Rc7 Na6 R7c4 Qa7 Rb4 Nc5 Bc2 Rb7 Qa6 Rb5 Bd3 Rgg3 Rf1 h1Q Rf7 h2 Rd7 Rg1 Be2 Qhe4 Ke7 Qec2 Bd3 h1Q Bd6 Qb1 Bc7 Rf3 Nf7 Ng2 Bg3 Re3+ Nfe5 Qhh5 Kd6 Nh4 Bc4 Rh8 Bf1 Kh7 Bd3 Rf8 g8R+ Rf7 Rh8+ Kg7 Rh7+ Kg8 Be7 Qh6 Bg5 Qg7 Rh5 Qh7 Rh6 Rg7
1rk4n/r2NRn2/1B2RpbB/n2B2b1/Nr2QB2/2N2Kqq/4NPrr/2n5 w - - 0 1 illegal: No possible last move, all moves rejected
2N1q3/1Bn1R2b/1RP2B2/1br1b3/1RQ2np1/qb2B1nR/k2B1K2/n3r1bN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 b4 g3 h4 Ke7 c4 Kd6 e4 g5 h5 a5 b6 f5 b5 Kc5 b7 Kb4 e5 d5 h6 d3 h7 a4 e6 a3 e7 d4 e8R g2 b6 f3 c5 f2+ Kd2 f4 c6 g4 Bb2 f3 Rh2 a2 Rh4 Ra5 Na3 Ne7 Rb1 a1N Be2 f1N+ Ke1 d2+ Kf2 d3 Nc4 Bf5 Qc1 Kb3 Nd6 d1Q Bf6+ Ka2 Rb4 d2 Ba6 Nd5 Nc8 Qb3 Ne2 d1B Kg1 Nf4 Ng3 Bd6 Nh1 Qa3 Rh3 Bb3 Bc3 Ng3 Bd2 Rg8 h8B Bh7 Bf6 Qd7 Qf1 Rc5 Qe2 Rgg5 Re7 Rce5 Qf1 Qe8 Qb5 Re1+ Qf1 Nd7 b8B Nf8 b7 N8e6 Ba7 Nc7 Bae3 Rc5 b8R Be5 R8b6 f2+ Kh2 Nce6 Bb7 Nc7 Qd3 f1B Kg1 Be2+ Kf2 Bf1 Qc3 Bb5 Qc4 g1B+
2rrn1r1/2NB4/1p1q3R/rRr1b2K/4bP1b/3BN1N1/Bq1nb2k/Q1N1B3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 d4 Kg6 a4 Kf5 f4 Kg4 a5 Kg3 a6 h5 d6 e5 a7 c5 d7 b6 d5 b3 d6 c4 Qc2 b2 Na3 b1Q Qd3+ e3 Qf5 h3 Rh2 c3 Qf6 h4 Rh1 e4 Nb5 c2 Bd2 c1R Ra5 h2 Qa1 h3 Nd4 Qb2 Nb3 Nc6 Rb5 Rc5 Nc1 Qc7 d8N Bg7 d7 Ba6 Nf7 Rc8 d8N Ne5 a8B Nc4 Bb7 Be5 Nh6 Nf6 Ne6 Ne8 Bc6 Qd6 Ng4 Rg8 Bd7 Rd8 Nc7 Rc8 Ke1 e2 Ne3 Rd8 Bc3 Nd2 Bb4 Kh4 Kf2 e1R g4 Rc8 g5 Rd1 Ke2 Kg3 Nc4 e3 g6 Qf6 g7 Qd8 Kd3 e2 Ke3 e1B Bd3 Qe7 Ba5 Qd6 Nge2+ Kg2 Bb4 Bh4 Ng3 Nf3 Be1 Nd2 Rf1 h1B Ke2 Kh2 Ne3 Be4 Kf2 Rh8 g8B Rh5 Ba2 Rg5 Rb4 Ra5 Rb5 Rg8 Nb3 Rc1 Ke2 Rc5 Nc1 Rd8 Rf2+ Kg1 Rf3 h2 Rf2 h1R Rh2 Bhf6 Rh8 Bh4 Rh6 Kh2 Bf2 Rd1 Be1 Rc8 Kf2 Bg6 Ke2 Nb3+ Kf3 Nd2+ Kg4 Be4+ Kh5 Rd8 Nce2 Rdc1 Ncd5 Rcc8 Nc7 Rc5 Nc1 Bh7 Rb4 Bc4 Rb5 Be4 Bdb1 Bf1 Bd3 Be2+
r1RQb3/1R2b1PN/B3q2p/3r3N/3b1BKB/3Rbn1B/rb2q1n1/k3r1R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Ke6 c4 Ke5 b4 d5 f3 a5 g5 e3 b6 a4 b7 h3 c5 a3 b5 a2 b6 d3+ Ke1 Kd4 g6 e5 f4 d2+ Ke2 h2 Kf3 h6 c6 e2 f5 e1B c7 e4+ Kf4 e3 f6 e2 f7 Nc6 b8R Qd7 g7 Qe6 b7 Bf2 Bg2 e1B Qe2 d1R Qc2 Bc3 Bf3 Be3+ Kg3 Bd7 c8B Be7 f8B Bb2 Nd2 Be8 Nh3 Nf6 Nf4 Ne5 Ne4 Nfg4 Rg1 h1R Bg2 Nf3 Nf6 Ra4 Qf5 Kc3 Nh7 d4 Nh5 d3 Qg5 d2 Bh3 Kb3 Rb1 a1B Qa5 Ka2 Qd8 Bbd4 Rb3 Bab2 Rd3 Ka1 Ra8 Rg8 b8R Ra2 Rb7 Re1 Rab8 d1Q Bd2 Qe2 Bc1 B3g5 Bf4 Ne3 Ra8 Ng2 Rab8 Bea3 Be7 Rf8 Ra8 Rf5 Bf6 Be7 Kg4 Rh2 Rbb3 Ra4 Ba6 Raa5 Rb7 Rfd5+ Kg3 Ra4 Rc8 Ra2 Bd6 Bd2 Bh4 B2e3 Bf4 Raa5 Bb5 Ra7 Ba6 Ra8 Rbb3 Qd1 Rc6 Bbc3 Bf6 Ngh4 Rb7 Ra2 Rc8 Bb2 B6g5 Ng2 Bh4 Qe5 Kg4 Qe2 N5f6 Qe4 Nh5 Qe6+
R1r4N/n2b1qp1/B1R1NP1k/1R6/1B1b1Nnr/bb5Q/nN4bK/qn5R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 Kf2 Kg6 Kg2 d5 b4 a5 c4 e5 h4 d3 b6 d2 b7 e3 h5+ Kh6 f5 a4 f6 e4 b5 e2 b6 e1N+ Kg3 d4 c5 a3 c6 a2 c7 d3 Rh2 e3 Ba3 e2 Bg2 Qd7 Bd5 Qf7 Bb4 Nc2 Nc3 e1N Rh3 Nc6 b8N Na3 b7 Nec2 Nge2 Bd7 c8R Nb1 Rh1 Na7 Qf1 d1B Na6 d2 Nf4 Bf3 b8R d1B Rc6 Bg2 Rb5 Rc8 Nc7 Rh7 Kh2 g3+ Kg1 Be7 Bc4 Bd6 Nce6 Be7 Bc5 Nb4 Na4 Bb3 Nb2 Be4 Bd6 g2 Kh2 g1B+ Kg3 Bd4 Qh3 Bg2 Kh2 Nd5 Bb4 Ndc3 Ba5 Ba3 Bb4 Ne7 Bf1 Nf5 Bd3 Rhh8 Be2 Kh7 h6 Ne3 Nh5 Kg6 h7 Kh6 Bc4 Rhe8 h8N Re7 Nd8 Re4 Ne6 Rh4 Nhf4 Ng4+ Kg3 Kh7 Nhg6 Kh6 Rb8 Nab5 Ra8 Na7 Ba6 Bf3 Nh8 Be4 Rc5 Bg2 Rb5 Nd2 Rac1 a1Q Rc2 Na2 Rc6 Ne5 Kh2 Nb1 Rcc5 Ng6 Rc4 Ne5 Rc6 Ng4+
4KB1N/3P1q1r/5N1b/2Qbrkr1/N2brb2/2Bnn1q1/1R2pB2/1RrN1B2 w - - 0 1 illegal: No possible last move
1Rqq1k1N/2P3qn/B3RB2/rb2n2n/2r2n1N/R1K3Np/1n1QN2b/3Rq3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 a5 c4 h5 g4 a4 g5 a3 g6 h3 b6 f3 c5 d3 b5 a2 g7 f4 e5 f2 e6 h2 e7 h4 b7 f3 c6 h3 c7 d4 b6 Rh4 Qa4+ Bd7 Qb4 Nf6 g8R Bb5 Rg6 Nh7 Qb3 Nd7 b8R Ne5 b7 Qc8 Bb2 Ra5 Bg2 f1Q Ne2 f2 Qc3 Kf7 e8N Bd6 Ng3 Kf8 Rg1 h1N Ng7 Rg4 N7f5 Qe2+ Kc1 f1N Nh4 d2+ Kc2 d1N+ Qd2 Nhf2 Re6 Qe1 Nc3 Nfd3 Nce2 Nf4 Bc6 d3+ Kb3 Nf7 Bf6 Nb2 Kc3 Ne5 Rd1 a1Q Bd5 Ne3 Bc4 Nf5 Rf1 Ng7 Rf3 Ngh5 Re3 Bc6 Ba6 Bb5 Ra8 Ra4 b8N Rg5 Nc6 Rc4+ Kb3 Rf5 Rb8 Rg5 Nd8 Rf5 Qc2 d2 Nf7 Rg5 Nh8 Rf5 Rb1 d1Q Rc3 Qd5 Rd1 Qa8 Qd2 Qd8 Rb7 Qac8 Rf3 Bc5 Rb8 Bg1 Rd3 Bh2 Rc3 Qa3+ Kc2 Qae7 Kb3 Qg7 Kc2 Re4 Ra3 Ra4 Kc3 Ra5 Bg5 Rf7 Bf6 Rd7 Rb1 Rd4 Rd1 Rc4+
b1K2k2/1P3B1q/1NRr1q2/BnQ1q2N/RBn2q1B/p5q1/b2R1r1b/2Rb4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 g5 b4 a5 e4 d5 c4 g3+ Kf3 a4 b6 g4+ Ke2 g2 Kd3 f3 e5 f2 b5 f4 c5 f3 b7 g3 b6 Ra6 e6 Nd7 b8B Ne7 h5 Qc7 h6 Qe5 c6 Nf5 e7 Bb7 h7 Nd6 c7 Ba8 b7 Nb6 Bg5 Nbc4 Nh3 g1Q Qc2 g2 Na3 Qgh2 Bh4 g1Q Nf4 Nb5 Nh5 Qgg3 c8R+ Kf7 e8R Rd6 Be2 f1Q Red8 Qhh3 Qc1 f2+ Qe3 Be7 Bc7 Rf8 h8B Bg5 Bf6 Bf4 Be7 Qc1 Re1 f1Q Ba5 Qff2 Bf3 Qhf5+ Be4 Qh7 Rc6 Kg8 Bg6 Qff3 Nc2 a3 Nb4 Qb2 Rac1 Qf6 Rd7 Be5 Red1 Qf3f4 Rdc7 Qbh2 Rd2 Rf7 Ra6 Rf8 Rcc6 Rf7 Kc2 d3+ Kb3 d4 Ka4 Rf8 Nd5 Qe2 Rdc2 d2 Nb6 d3 Qc5 d1B Kb4 d2 Bf7+ Kh8 Ra2 Bb3 Ra7 d1B Rd2 Ba2 Ra6 Bd4 Ra7 Bg1 Ra6 Bh2 Ra7 Nc7 Ra6 Nd5+ Kb5 Qee5 Bc3 Rg8 Nc8 Re6 Qa7 Qge1 Ra4 Rg2 Ba5 Qeg3 Beb4 Rf2 Qc5 Nc3+ Ka6 Rd6 Ka7 Nb5+ Kb8 Bc2 Nb6 Bd1 Be8 Kg8 Kc8 Kf8 Bg6 Rg2 Bf7 Rf2
3nB2N/3rBq2/3N4/r2R1K1B/bnr1QRr1/N4q1p/N1P1bn1B/bn2k3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 a5 b4 f5+ Kf3 Ke5 e4 d5 g5 h3 b6 h2 b7 d3 g6 Kd4 e5 h4 g7 h3 b5 d2 e6 a4 e7 a3 e8N a2 b6 Bd7 Nf6 Qc7 Bd3 Ne7 g8B Bg7 Ne8 Nec6 Be6 Nb4 Qe1 d1B+ Qe2 Rh4 Ba3 Ba4 Bc4 Rg4 Bd7 N8c6 b8B Ra5 b7 Nd8 Bc6 Qf7 Nd2 Kc3 Bb3 d4 Nc4 d3 Ned6 d2 Be8 Bh8 Rc1 a1R Bc7 Rc5 b8N Rc6 Nd7 Bg7 Ncb6 Rc4 Nf8 Be5 Ng6 Bh8 Kf2 f3 Qe4 Be2 Ke3 f2 Rd1 f1Q Ba2 Bg7 Nh8 Qg2 Rf1 d1R Rf4 Bf6 Nf3 Rdd4 Rd1 h1N Ne1 Nf2 Nd3 Be5 Nc1 Bf6 Ndc8 Rd7 Rd5 Rc5 Rd4 Qg8 Baf7 Nfd3 Bh5 Qf7 Bb8 Nbc6 Ba7 Bb3 Rf3 Ra5 Bc5 R1a4 Qe7 f4+ Ke4 Kd2 Ba3 Ke1 Nc4 Bg7 Rd6 Ba1 Bg1 Rb4 Na2 Ba4 Bh2 Qf1 Rf2 f3+ Ke3 Qg2 Qe4 Qf1 Rd5 Qg2 Nd2 Rc4 Be7 Ncb4 Nb1 Qh1 Na3 Qf1 Rg2 f2 Nd6 Qh1 Rg3 Qg2 Rf3 Qf1 Rf4 Qg2 Qf3 Qh1 Rdd4 f1N+ Ke4 Nd2+ Ke3 Ne5 Rd5 Nb1 Qg2 Ned3 Qf3 Rc3 Ke4 Nf2+ Ke5 Qg2 Qd3 Qf3 Qe4 Qg8 Kf6 Rc4+ Kf5 Qf7+
1K3nNk/NB2r1q1/4rrBb/Nq1nR3/7n/rB1P4/3N2p1/n1QbBq1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 g5 a4 b5 h4 f5 e4 Kf7 e5 Kg7 d6 c5 d3 f3 Ke3 f2 e6 b3 h5 b4 e7 b2 e8B b3 a5 c4 Kd4 f4 Kc5 g3 a6 g4 a7 c3 Ra3 f3 Kd5 g2 d7 c2 Nh3 g1N Be2 f1R Be3 c1N Bf2 g3 Nf4 g2 Ng6 Rh7 Ra5 Qe7 d8N Nd7 Kc6 Ngf6 Re5 Nd5 Nd2 b1Q Be1 f2 Nb7 b2 Na5 Nb3 Qc1 Nf3 Bd1 Na1 Bb3 Nh4 Bf7 Qg5 Ne7 Kh8 Ng8 Bh6 Bg6 Nf8 Kd6 Rf7 Kc6 Bd7+ Kb7 Re8 a8B Re6 Ka7 Ba4+ Bb7 Rfe7 Kb8 Qf6 Qc8 Qg7 Qc1 Bg5 h6 Bf4 h7 Bh6 Bc4 Bd1 Ba2 Qc2 Bb3 b1R Qb2 Qc5 Qc1 Qf7 Rf5 Qb5 Re5 Kg7 h8N Rb2 Rh3 Ra2 Rh1 Qf6 Nf7 Ra3 Nd6 Kh8 Nc8 Qg7 Rh3 Rh1 Na7 f1Q Rhe3 Rh3 Rh5 Rf3 Ree5 Nf5 Rh2 Nh4 Rh1 Rff6
n1r1qkB1/b1Bqn1R1/1n6/2rNrnBR/2Q3N1/2P2r1p/K1bB3R/2b1R3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 b4 a5 e4 d5 g4 h5 c3 a4 Kc2 d3+ Kb2 f3 g5 a3+ Ka2 f2 e5 h3 g6 h2 b6 h4 g7 d2 e6 f4 b7 d4 b5 f3 e7 d3 b6 h3 Qe1 d1R Qe4 d2 Kb3 a2 Na3 Rh5 Kb2 Rc5 Bc4 f1N Bb3 f2 Nb5 Na6 b8B Nc7 b7 Re1 Qb1 d1Q Qh7 Bf5 Bd2 Ne3 Nf3 f1R Ne5 Rf3 Qh4 Ned5 Qc4 Bc2 Ng4 Re5 Bg5 Qd2 Rae1 Nb6 Ba7 a1B+ Ka2 Qd1 b8B Bb2 Bd2 Bc1 Bg5 Ncd5 Bc7 Rc8 Bab8 Kf7 e8R Ne7 g8R Na8 Rg6 Bg7 Rh8 Qe8 Rh5 Kf8 Bd2 Bf6 Rg7 Ndb6 Bd8 Bg5 Nc7 Be3 Nd5 Bg1 Bbc7 Be3 Rhg1 h1N Rg2 Ng3 Rge2 Ngf5 Rh2 Ng8 Bg5 Nge7 Ba4 Bg1 Bd7 Bd4 Be6 Bf2 Bg8 Bg1 Bde3 Qd3 Bd2 Bf2 Nb4 Qdd7 Nd5 Ra5+ Qa4 Nc4 Re2 Ba7 Re1 Rc5 Qb4 Ncb6 Qf4 Qdd8 Qc4 Qdd7
3b4/r2BB1rr/1NN2nq1/1R2q1QN/pRb1n3/3K1PR1/Nq1b2rk/R5b1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 b4 Kg5 c4 Kf4 b6 h5 b7 e5 f3 Kg3 g5 a5 b5 d5 g6 e3+ Kd3 e4+ Ke2 a4 b6 d3+ Ke1 d2+ Ke2 d4 g7 h3 c5 h2 c6 h4 c7 h3 Qb3 d1R Ba3 Qe7 Qb5 Nd7 b8N Rd2+ Ke1 e2 b7 d3 Bc1 Nc5 Bb2 Ra7 Nc6 Be6 b8N Rh7 c8R Nf6 g8R+ Rg7 Nb4 Bc4 Nd7 Qe5 Bc1 Be7 Rcf8 Bd8 Nc3 Rb2 Nc2 Ra2 Kd2 e1B+ Ke3 d2 Ba3 d1Q Nb6 Qb1 Nb4 Rg2 Nca2 Qbb2 Nc6 Ba5 Bd3 Bc3 Qa5 Be1 Qd2 Bf2+ Ke2 e3 Re8 Qh5 Re5 Nce4 Rb5 Qg6 Be7 Qe5 Kd1 e2+ Kc2 e1B Qg5+ Ng4 Rab1 Bd2 R1b4 Bd4 Qe3 Ngf6 Ne2+ Kh4 Re1 h1Q Ng3 h2 Ra1 Kh3 Nh5 Qe1 Be2 h1R Qg5 Kh2 Bd3 Bg1 Be2 Bd5 Kd3 Qc1 Bf1 Qcb2 Be2 Rg3 Bf1 Rg4 Bh3 Rg2 Bd7 Qf7 Be8 Rg6 Qf4+ Kh3 Ng7 Bb3 Qf5+ Kg3 Bd7 Rh7 Nh5+ Kh2 Rg7 Qe8 Rf7 Rg8 Rg7 Be6 Rg4 Qg6 Rg3 Rgg7 Qg5 Bc4+
1b1nq3/q1Rn2B1/Br1r3b/N2P2p1/5NNr/3BK3/R1br3B/N1Qbkq2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 b4 a5 d5 Ke5 h5 g5 h6 g3+ Ke2 g2 h7 a4 b6 c3 b5 c4 b7 a3 b6 f3+ Kf2 f4 Qa4 Kd4 e5 a2 e6 c2 e7 Nh6 e8B Ra6 Bg6 Nd7 b8B Qe8 b7 Rd6 Qa8 c3 Bb2 c1R Bh5 Rd1 Nd2 Nf7 Qa6 Nd8 Bc7 Bh6 Rc1 a1R b8N Rb1 Qa1 Ba6 Be2 Bd3 Nh3 Bc2 Nb3+ Ke4 Rh2 Rd2 Nc6 g1B+ Ke1 Ke3 Ba6 f2+ Kf1 Bd1 Bhe2 c2 Bg7 Rb2 Rg2 Bh2 Bed3 Kf3 Qa3 Rb1 Na1 Rb6 Na5 Ke3 Rb1 c1Q Rb2 Bg3 Ra2 Qc5 Qc1 Bh2 Rg4 Bg3 Kg2 f1B+ Kg1 f3 Nf2 Bh3 Rc4 Bf5 Bb8 Qc7 Rc6 Qa7 Ng4+ Kf4 Kf1 f2 Rcc2 Kf3 Rc7 Rf8 h8N Rf7 Bf8 Rh7 Ng6 Rh8 Bg7 Be4 Bdb5 Bec2 Bd3 Be5 Nf4 Rh7 Nf6 Ke3 Kg2 f1Q+ Kg3 Rh8 Ng4+ Kd4 Rb7 Rf6 Ra3 Rf2 Ra4+ Kc3 Bd6 Rh2 Bc5 Bb8 Bg1 Re2 Bf8 Rfd6 Bh2 Bg7 Ra2 Rh4 Rc7+ Nc6 Qb1 Bh6 Bg7+ Kd2 Qb2 Ke1 Qc1 Qg1+ Kf3 Nd8 Be5 Rg2+ Ke4 Qf1 Ke3 Qg6 Bh8 Rd2 Bg7 Qe8+
kn2R1B1/r4B1q/r1N2Kb1/R1PR4/2qn1B2/p3Q1br/1q1B1R1n/2q2N1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 d5 e4 Kd7 Kg4 Kc7+ Kh5 Kb7 g4 f5 c4 h3 b4 d3 e5 a4 b6 d2 g5 a3 g6 f3 e6 f2 e7 d4 Kg5 h5 g7 d3 b5 h4 c5 h2 Nh3 f4 Qa4 d1Q Qa5 d2 Be2 f1N Bh5 f3 Bf7 f2 Ra2 Qd4 e8R Qb2 Ng1 h3 Nf3 Bf5 Nd4 Nh6 g8B Ra7 Kf6 Bd6 Qc3 Bg3 Nc6 Ka8 Rg1 h1R Qe5 Bf4 Rg5 h2 Qc3 Bd3 Rd5 Nf5 Qe5 Nd4 Qe3 Qa1 Rc2 Bg6 Ra2 Qh5 Rc2 d1Q Nd2 Rh6 Ra2 Ng3 Nf1 Qb2 Bd2 Qdc1 Be1 Bd3+ Kg7 Qb3 Nd2 f1Q Nd8 Na6 Rc2 Rg1 b7+ Kb8 Rb2 h1R Ra2 Rh3 Rb2 Kc7 b8R Rgh1 Rb7+ Kc8 b6 Qf2 Ra2 Nf1 Rc2 Nh2 Nf1 Qc4 Rbd7 Kb8 b7 Bg3 R7d6 Nb4 Ra6 Qfd2 Ra5 Rha6 Rb2 Qdc3 Rf2 Nbc6 Kf6 Q3b2 Bc3 Bg6 Bd2 Kc7 b8B+ Kc8 Re4 Qh7 Bf4 Nb8+ Nc6 Kb7 Re8 Ka8
b1nr4/2n3nR/3B1K1P/BR1Nr2B/3Qr2k/1rRq2np/Nbq4q/B1R5 w - - 0 1 illegal: No proof kernel
n3n3/b1NqRNB1/Bqb1N1P1/r2nnB2/1R6/6KN/1p1qb1B1/k2rQ1b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 g4 Kd6 a4 Kc5 e4 Kd4 d3 b5 a5 c5 g5 h5 a6 f5 g6 c4 e5 b3 d6 b4 e6 b2 e7 b3 e8B f3 d7 f4 a7 c3 Qd2 h3 Ra2 h2 Ra5 h4 Rg5 c2 Rg3 h3 Qe2 Na6 Qe7 Bb7 Nc3 b1Q Ne4 Nf6 Rg2 Bc6 Qe6 Bc5 Rg5 Nc7 Ng3 Kc3+ Be3 Kb2 d4 c1B d5 Ka1 Bf7 Nfe8 Ke1 f2+ Ke2 b2 Kf3 Qf5 Bd4 Be3 Ba6 f1N Bg7 Bed4 Bg8 Ne3 Nh5 Ng4 Qe3 Ne5+ Kf2 f3 d6 Qf7 Kg3 f2 Nf4 f1B Rf5 Be2 Ne6 Qdf6 d8N Qd7 Nf7 Rh5 Bh6 Rd8 a8B Ba7 Bg7 Bdb6 B8b7 Na8 Nc7 Qfe6 Rf6 Qd5 Qc3 Qd2 Re6 Bc5 Re7 Bd4 Nf3+ Bg1 N3g5 Ng4 Bd3 Ngf6 Bba6 Nd5 Bb1 Bgb6 Rf1 h1Q Rf4 h2 Bf5 Bg1 Nh3 Qe4 Rh4 Qb4 Rhe4 Qb6 Rb4 Qe6 d7 h1N+ Kg2 Nf2 Kg3 Nd3 Qe5 Rc8 d8N Qd7 Nde6 Rd8 Qe3 Ne5 Qe4 Rh4 Qe3 Rc4 Qf2 Rc1 Qe1 Rd1 Nef4 Ndf6 Nfg5 Q7d4 Bd5 Rd7 Bg2 Rd5 Nf7 Ra5 Nfe6 Qd7 Bf3 Nd5 B3e4 Bcb5 Bg2 Bc6
B2Br1nb/kNr3n1/1p1bbPQn/4qR2/2q1R3/B2R2n1/3R1Nqb/2KB4 w - - 0 1 illegal: No possible last move, all moves rejected
1NN1k2K/nN5P/1Rb1n2b/1qn1p1r1/2rRB2q/2Q3NB/1B4B1/q2q1b1b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 b5 Ke4 g5 c4 d6 f4 b3 a4 b2 h4 b4 c5 d3 a5 d2 f6 b3 h5 g3 c6 g2 f7+ Ke7 h6 g4 f5 g3 a6 Nd7 h7 Bb7 a7 Rc8 a8B Bh6 f8N Ke8 f6 d5+ Kf5 d4 Kg6 d3 c7 Nc5 Ne6 Bc6 Qf3 d1B Ra6 d2 Na3 Be2 Rh4 d1Q Nc4 b1Q+ Re4 b2 Nb6 Bc4 Ne2 g1N Qc3 g2 Ng3 Nh3 Bb7 g1Q Bg2 Qa1 Rd4 b1B+ Be4 Qd5 Nd8 Qf2 Bb2 Ng5 Ba8 Bbd3 Nb7 Bf1 Bg2 Nge6 f7+ Ke7 f8N Ke8 Be4 Qf4 Nfd7 Qh4 Nb8 Qd7 Bb1 B4d5 Bd3 Bh1 Be4 Qd5 Bg2 Qc4 Be4 Qb5 Bg2 Rd8 Nc8 Rd7 Rb6 Rf7 Na7 Rf5 c8B Rf4 Rd7 Rc4 Rd4 Ng5 Bch3 Ne7+ Kf6 Rg8 Nc8 Bd5 Rd2 Nc6 Rd4 Na7 Be4 Bc6 Beg2 Rf8+ Kg6 Nge6 Be4 Nd8 Beg2 Rf5 Be4 Be3 Kg7 Nde6+ Kh8 Bc1 Beg2 Bh6 Nd8 Bd7 Bae4 Rg5 Nb7 Bc6
Q4Bnq/1K1np1nk/4N3/1qNPB2N/2Brr2b/1bN1qq2/5b1R/2Bn1R2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Kg6 b4 a5 d4 c5 g4 h5 f4 c3 g5 c4 b6 a4 f5+ Kh7 f6 h3 b7 h4 b5 a3 f7 c2 b6 c3 Bg2 h2 Qe1 a2 Bh3 Nd7 b8B Bg7 f8B Ra4 b7 Qa5 Kf4 e3 Ke4 e2 Na3 Bf6 Be5 Qb5 Be6 h3 Qd2 e1B b8N Bf2 Rb1 a1Q Ne2 Ba6 Rf1 h1N Rb2 h2 Bc4 Bc8 Nf4 Ng3+ Kd3 h1N d5 Nf5 Na6 Ng7 Nc5 Ba6 Nb1 Qa3 Qe3 Qab3 Kd4 Qa3 Bd2 c1Q Nfe6 c2 Nc3 Qca1 Ra2 c1Q Rc2 Qe1 Bc1 Qe2 Ra2 Qf3 Re2 Bh4 Rh2 Nf2 Qd2 Nd1 Qb2 Qb8 Qb7 Bb5 Qa6 Rb4 Qb7 Ba4 Qa8 Bb3 Ne4 Nb6 Kc5 Nd7+ Kc6 Qb5+ Kc7 Qa7+ Kc8 Qae3 N4c5 Kg6 Kc7 Bf2 Kc8 Rh6 Kc7 Kh7 g6+ Kh8 Kc8 B6h4 Bd4 Bf6 Nd8 Ne6 g7+ Kh7 Ne2 Qb6 Bb5 Rh4 Ba6 Nh6 g8N Ra4 Bc3 Rag4 Bc4 Qb5 B3b2 Bg5 Bf6 Qae5 Nc3 Rd4 B6g7 Rhe4 Nf6+ Kg6 Nh5 Ng8 Bf6 Kh7 Bh8 Bgh4 Bf6 Nc7 Nde6 Ne8 Bh8 Q5g5 Be5 Qg7 Bg3 Qh8 Be5 Ng7 Kc7 Qa4 Kb7 Qb5+
1qkn4/1NB1p3/b1P2N2/2qR3n/r1R4N/R3nQr1/BK1bq2R/bN3q1n w - - 0 1 illegal: No possible last move
1BbR1R1Q/1BPb2r1/1RN5/b1Kqb1kn/1R1n1NN1/r2r1n2/2pq4/2n1N3 w - - 0 1 illegal: No proof kernel
QnR2r1N/Prr1b3/2Bb1q1k/nK1nBr1N/2p1q2B/6R1/6N1/2NB1bb1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 g5 e4 b5 Ke2 f5 Kd3 Kf7 h4 Kg7 h5 c5 d6 b3 a5 g3 e5 f3 e6 g2 e7 b4 Kc4 g4 e8B f4 d4 b2 d5 f2 d7 g3 h6+ Kh7 a6 f3 d6 b3 a7 Be7 Be2 f1N Rh3 f2 Nf3 g1B Kb5 g2 Nh4 Nd2 Nc3 b1Q Bb2 f1R Rg3 Nc4 Na2 Qe4 Nc1 Bh2 Be5 g1B Qd5 b2 Ng2 Nf6 Bd1 Rf8 Ra4 Na5 Rc4 Rf5 Rcc3 Qc7 d8N Bd7+ Qc6 Nd5 Ne6 Qd8 Ng7 Be6 d7 b1R+ Rb3 c4 Nh5 R8f7 Rg8 Bg3 Rf8 Kg6 h7 Kh6 h8N Rh7 Ba1 Bgd6 Be5 Nb4 Rg3 Nd5+ Ka4 Qb6 d8B Qbd4 Qc8 Rb7 Bc6 Qf2 Re8 Qff4 Reg8 Qh4 Rf8 Qf6 Rfg8 Rc7 Kb5 Nd7 Be2 Bf8 Qb8 Rb7+ Ka6 Qe7 Ngf4 Rff7 Bd1 Bh3 Ng2 Rf5 Nh4 Bf1 Ng2 Qe6 Bh4 Qf6 Qd8 Rc8 Qe8 Rcc7 Qa8 Bfe7 Rc8 Rf7 Bc3 Rf8 Be5 Bb6 Kb5 Nb8 Re8 Ne3 Rd8 Nd5 Rc8 Bg1+
R1rbNQb1/pq1k2n1/2b2R2/6Rq/Bn3n2/3r4/2NBP1B1/bK1B1Rqq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kd2 d5 c4 f5 Kc2 h5 g4 d3+ Kd2 a3 b4 d4 b5 h4 c5 f3 b6 f4 g6 a2 b7 h3 g7 h2 c6 f2 c7 f3 g5 Qd5 g6 Ne7 g8B Bd7 c8B Nbc6 b8R Rh3 g7 Nb4 Nc3 Qh5 Qc2 Ng6 Qb1 Bc6 Bb2 Be7 Kc1 Bd8 Bb3 Nf4 Bg2 f1N Nb5 f2 Bd1 Ng3 Bc3 f1Q Nf3 Qg1 Ne1 Nf5 Nc2 d2+ Kb2 d3 g8R+ Ke7 Bd7 Ng7 Nc7 Rg3 Rb5 Rc8 Rg5 Qb6 Rg1 h1Q Rf1 Qb7 Ne8 Rh3 Be6 Rf3 Bb3 Kd7 Ba4 Re3 Qc1 Qg1 Kb3 Qgh1 Qa3 Rg3 Kb2 Qg1 Rc1 a1B+ Kb1 Rf3 Ne1 Rh3 Rf8 Rg3 Rf6 Rh3 Bdb3 d1Q Nc2 Qe1 Rd1 d2 Rc1 d1B Bd2 Na2 Qf8 Nb4 Ne3 Qeh4 Rc3 Rg3 Nc2 Rd3 Rcc5 Qhh1 Rb5 Qa6 Rb8 Qb7 Ra8 Qa6 Ne1 Bc2+ Kc1 Bb1 Bd1 Ba2 Nc2 Bg8 Kb1 Qb7
Q2rr2R/Nr1rp3/4Nn1B/2N2bN1/r2nRq2/B1knB3/1r2Bn1P/2b1K3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 b4 Ke6 c4 g5 b6 d5 c5 a5 c6 a4 c7 g3 f5+ Ke5 b7 d3 b5 Kd4 b6 g2 f6 d2+ Kf2 g4 f7 e3+ Ke2 a3 Qb3 d1R Qa2 g3 Nd2 Nf6 Ne4 Qd6 Qb3 a2 Qb1 Bf5 c8N Qf4 Nh3 g1R Nc5 g2 Qe4+ Kc3 Na7 d4 Qe5 Nc6 b8N Bh6 b7 Re8 Nba6 Rad8 b8B Rd2+ Ke1 e2 f8B Rb2 Qe4 d3 Be3 Nd4 Rb1 a1R Ng5 Ra4 Bd6 Rb7 Nc7 Rd7 Qf3 d2+ Kf2 e1N N7e6 d1R Be2 Rdd8 Rb4 Rd2 Bg7 Rbd7 Rb8 Rb2 Bf8 Nec2 Rc8 Rgb1 Re1 g1N Kf1 Nb4 Kf2 Qg4 Qa8 Nh3+ Kf1 Nf2 Rb8 Bg7 Rc8 Bh8 Bh6 Nbd3 Rc6 Rbb7 Ng7 Nh7 Nb3+ Kb2 Bb4 Rdb8 Bed2 Rf8 N7e6 Qf4 Bf3 Ne2 Rc8 Bf6 Re8 Rbd8 Nbc5 Bd4 Bh5 Be3 Ba3+ Kc2 Bg4 Nd4 Bdc1 Bd2 Re4 R1b2 Be2 Rg8 Rf8 Kc3 Re8 Nf6 Rf8 Be1 Be3 Bd2 Re8 Bc1 Rf8 Rg6 Rh8 Rg7 Na6 Rgg8 Nac5 Ne5 Ke1 Rgf8 Bf3 Rfe8 Be2 Ned3+
nr1bb2N/1rR1n1Nq/1n1B1PQ1/1p2K1B1/1b1r1Bn1/4R1N1/k2N4/b5rB w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 c5 Kf4 b5 a4 h5 d4 e5+ Ke3 b3 f4 b2 g4 h3 f5 c4 g5 c3 f6 h4 a5 h2 a6 h3 a7 c2 d6 Ke6 d7 Kd5 g6 Na6 g7 Rh7 Ra4 Qe7 d8B Rb8 a8N Bd7 Qe2 Be8 Qh5 Nc7 Bd2 c1B Na3 b1N Be2 Nc3 Bf3 Bb2 Qg6 Ba1 Rc4 Na4 Nb1 Nb6 Ne2 Rh4 Rhc1 h1N R4c3 h2 Ng3 Nf2 Bh1 Qf7 Rd3 Ne7 g8N Qh7 Nh6 Rf4 Nf7 Ng4+ Ke2 Rb7 Nh8 Rb8 Rf3 e3 Kd3 e2 Re3+ Re4 Rc2 e1B Bc1 Ba5 Nd2 Nf5 Rc3 Bfb4 Be7 Rb7 Bd6 Ne7 Bg2 h1R Rc6 Rg1 Bh1 Na6 Rc7 Nd7 Rc6 Bd8 Rc8 Nb6 Nc7+ Kc6 Ne6+ Kd5 Rc2 Nc7 Ng7 Nca8 Rc7 Nh2 Rf3 Rh4 Ke3 e4 Bf4 Rb8 Bd6 Ng4+ Kf4 Rg2 Rfc3 e3 Rd3 e2 Re3 Nc6 Kf5 e1R Bf4 Rg1 Bg5 Kd6 d5 Kc5 d6 Kd4 d7 Ne7+ Ke6 Re2 Nde4 Ra2 Nd2 Ra7 Ba3 Ba5 Bd6 Rab7 Bdf4 B5c3 Bc6 Kc5 Bh1+ Kb4 Kd6 Ka3 Ke6 Ka2 Bd6 Nf5 Bdf4 Be7 d8B Beb4 Be7 Ba5 Re4 Bcb4 Bed6 Ne7 Re3 Nbc8 Rcc3 Bd8 Rc6 Ncb6 Rc7 Nh2 Bfe5 Rc4 Bef4 Rd4 Ke5 Ng4+
3N2k1/1bbnQq1n/b3K3/B5b1/b1R1pq1n/Bq2P1rR/4B1R1/RB1N2n1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Bg2 fxg4 Bf1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qb6 Bb2 Qa5 Bc1 Qd8 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 h4 a4 b3 c4 h3 f4 b4 f5 h2 a5 g2 e3 b2 a6 d3 c5 g3 a7 d2 a8B b3 f6 Rh3 c6 Qc7 Qg4 d1Q+ Bd2 Be7 Qf3 Ba6 Na3 b1N Be2 b2 Bf1 Qa4 Bd3 Qf4 Ne2 g1B Ba5 g2 Bc2 Rg3 Qe4 Nd2 Nd4 b1Q Nab5 Nf3 Nc3 Nh4 Ne6 d6 Nd1 Nd7 Bd3 Qb3+ Bc4 Qa7 c7 Bf2 c8R g1N Rc7 Bd8 Rc5 Bc7 Nd8+ Kf8 f7 Ngf6+ Ke6 d5 g6 d4 Bad5 Nh7 Be2 d3 Rc4 d2 Ba8 Kg7 f8B+ Kg8 g7 Be1 Ba3 Bf2 Nc3 d1B Qb7 Bc2 Nd1 Be1 Qe4 Bb4 Qb7 Be7 Qb4 Bg5 Be4 Qd3 Bg6 Ba4 Qe7 Qb3 Bb1 Ngf3 Rg1 h1B Rg2 Ng1 Rh2 Ba8 Rh3 e4 Be1 Qd4 Nb2 Bh6 Nf7 Rf3 Nd8 B8b7 Ba5 Qc5 Nd1 Qh5 Nc6 Qg6+ Kd5 Qgf6 Qb4 Kf7 g8R Qe7 Rg2 Rg3 Qc5 Qe8 Qe7+ Kg8 Ke6 Bg5 Nd8 Qef7+
k1n2B2/b1bR1B2/1p2qrbn/NP6/1QK2Rb1/2RnR3/1B1q3n/1b1qN1B1 w - - 0 1 legal: proof: f4 h5 d4 e5 d5 exf4 d6 cxd6 Nh3 d5 Ng1 d4 g4 hxg4 a4 b6 a5 Na6 Be3 Rb8 Bd2 Rb7 Bc1 Nb8 a6 Rh3 axb7 a5 Bd2 Rh5 Bc1 Rh8 Kd2 g5 Kd3 d5 b4 Kd7 e4 Kc6 h4 f5 c4 g3 e5 a4 c5 f3 e6 a3 h5 g2 e7 f4 e8R a2 h6 f2 h7 f3 Na3 g4 Bg5 g3 Bh4 Nh6 Bf6 Bf5+ Re4 Bg6 Nc2 Bd6 Be7 Rf8 h8B Rf6 Rc1 a1N Be2 f1N Nh3 g1Q Rb1 f2 Rc1 g2 Qe1 Nh2 Bf1 Bc7 Rd1 Nb3 Be2 f1B Nf2 Qd6 Ng4 Qe6 Nge3 Qf2 Rd2 g1B Bf8 Bh3 Nc4 Bhf5 Qb1 Bg4 Ne1 Nc1+ Kc2 d3+ Kc3 B4f5 Bh5 Qf4 Rd1 d2 Re3 Nd3 Bhg7 Bf2 Rf1 d4+ Kb3 Bg3 b5+ Kd7 Rf2 Nc6 b8B Ne7 c6+ Kc8 Qb2 Qfd6 Rf4 Qd8 Qc3 Bg4 Qb4 Qdd7 Rc1 d1B+ Rc2 Bdf3 Rc3 Bfe4 Bh8 Nf2 Bhg7 d3 Bh8 d2 Bhg7 Bd8 c7 Kb7 c8R Ka8 Rc7 Bb1 Rb7 Qdd5 Rd7 Nc8 Be5 Nd3 Bd4 Bc7 Bh8 B6f5 Bf7 Bg6 Bdc5 Bb8 Bd4 Ba7 Bdc5 Qe8 Bd4 Qg2 Na5 d1Q+ Kc4 Qe7 Re5 Qge2 Bg1 Qed2 Re3 Qe8 Rfe4 Bc7 Rf4 Rf5 Rc2 Qe7 Bb2 Rf6 Rc3 Qe6+
2NB1b2/pRBbKN1k/4B1b1/1R1br3/6q1/P3qBn1/1Qb1qN1N/r1q1r3 w - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 bxc4 h5 Nd7 Rh3 Ne5 Rh1 Ng6 hxg6 Bd7 Rh5 Be6 Rh1 Bc8 Ke2 e5 d4 c5 b4 f5 d5 h5 b5 c3 b6 c4 d6 h4 b7 h3 b8N c2 a3 h2 g7 Kf7 d7 Kg6 Qd6+ Nf6 g8N f3+ Ke3 f4+ Kf2 e3+ Ke1 e4 Qc6 e2 Kd2 e1R Kc3 e3 Kd4 e2 Ke5 c3 Ke6 f2 Qb7 f3 Nd2 Nh5 Nc6 Ng3 Ne4 Kh7 Bg2 f1B Nge7 f2 Bf4 c1Q Qb2 c2 Rb1 Qe3 Nf3 c1Q Nce5 Rg8 Rg1 h1B Nf7 Qdc7 Nh2 Q7c4+ Kf6 Rb8 d8B Rb5 Bb8 Bd7 Bbc7 Re5 Bf3 Bfg2 Nc8 f1B Nf2 Qg4 Qa2 Bh3 Rb5 Bf5 Qb2 Bg6 Ba8 Bhe4 Rg2 Bd3 Bf3 Bc2 Rg1 Bfg2 Rf1 Qcd2 Rh1 Ra1 Rb1 e1Q Rb7 Qec1 Rb5 Qde2 Rb7 Bgd3 Rb5 Rh8 g6+ Kg8 g7 Bg6 Nfd6 Kh7 g8B+ Kh6 Be6 Kh7 Rb7 Rg8 Nf7 Rg7 Nh6 Rd7 Nf7 Rd1 Qc3 Rg1 R1b5 Re1 Qb2 Qgd4 Bed5 Bd7 Be6 Qdd1 Bfg4 Bd5 Bf3 Bg7+ Ke7 Qdd4 Qb4 Qg4 Qb2 Bf8+
kBR1KrQ1/1R5q/N6p/1Rr3q1/2B3bn/5qp1/b3R1PN/b1Nn1rnN w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 axb5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kd2 Kd8 Kd3 Kc7 Kc4 Kb7 Kd5 a5 c4 g5 e4 f5 b4 f3 b6 f4 b5 a4 e5 f2 c5 d3 e6 f3 e7 d2 e8N g4 Bd3 f1Q Qb3 d1B Qa2 g3 Ne2 a3 Qb3 f2 Bf4 a2 Bc4 Bg7 Kd6 Nc6 Nf6 Nh6 Nd2 Ne5 Ke7 d5 Nc1 d4 Rb1 a1Q Nf3 d3 Ne4 Ra5 c6+ Ka8 c7 d2 Rb2 Qh5 Nh2 Qb1 Rg1 Qfe2 Re1 f1R Nf2 Qef3 Re2 Bg4 Nh1 Rf8 Qa2 Bb3 b7+ Ka7 b8N d1N c8R Ka8 b6 Nf5+ Ke6 Nh4+ Ke7 h6 b7+ Ka7 Na6 Rc5 b8R Qh7 Rb5 Q5g6 Qa5 Ba2 Qd8 Qh5 Qd5 Q5g6 Qg8 Qg5+ Kd6 Qc3 R2b3 Nef3 R3b4 Ng1 Be5 Bh5 Kd7 Qf3 Bb8+ Ka8 Rb3 Re1 Rb7 Rf1 R3b5 Ba1+ Re7 Rf7 Ke8 Bg4 Re2 Rf8+
N2qkb1b/B6R/Rqn2Bn1/3b1qpr/bQ1N1PBb/2Rp4/3R4/3KB2r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 a5 c4 d5 h4 g5 b4 e5 b6 a4 b7 d3 h5 g3 b5 g2 c5 a3 b6 d4 h6 a2 c6 e3 c7 e2 h7 e4 Nd2 Bd7 c8R Bb5 Nc4 Ne7 Qd2 Nbc6 b8B Ng6 Nf3 g1Q b7 Qg4 Nb6 Qf5 Qb4 d2+ Kf2 d1B Ke1 d3 Bd2 Bda4 Nd4 Bb3 Ba7 Bd5 Bh3 Rb8 Rd1 a1B Bg4 Ra8 b8R Bc3 Kf2 e1B+ Ke3 Bh4 Be1 Ba1 Kd2 e3+ Kc1 e2 Rd2 Bc3 Rb7 Rb8 Na8 Ba1 Rb6 Rb7 Bf2 Rf7 Ra6 e1Q+ Rd1 Qe7 Rd2 Qc7 Kd1 Qb6 Be1 Re7 Rhh2 Re2 Rh3 Rh2 Rc7 Rh1 Rhh2 Rg8 h8B Rg7 Rh3 Rh7 Bf6 Rh5 Rhh2 Bb2 Rh7 Bg7 Rc2 Bh8 Rhd2 Ba3 Qc5 Bb4 Rc3 Ba3 Qc4 Bf8 Qb4 Ba4+
NRR1nbk1/b1B2r1q/3R2r1/1PpBnr1B/2B2b1b/2q2K2/R1bp2N1/6Q1 w - - 0 1 illegal: No proof kernel
2Nn1bqk/n1b1QB1b/p1b1N1R1/5b2/Kq2PN2/4Bqrp/4r3/3BRBN1 w - - 0 1 illegal: No possible last move
KbR2N1k/1r1N2bp/b5B1/B2q1R1q/n1r1nn2/3P1B2/1B2p2Q/2N1nN1n w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Kg7 f4 e5 g4 a5 b4 c5 g5 h3 f5 c3 d3 h2 g6 a4 b6 c4 b5 a3 b7 c2 b6 a2 Nd2 c3 Bb2 c1B Be2 c2 Bf3 Ra4 Ne2 Na6 b8N Rc4 b7 Nf6 Rf1 h1N Nd7 Nc5 b8B Na4 Bc7 Ba6 Ba5 Bd6 Rf2 Bb8 Qg1 Kg8 Rb1 a1Q g7 Qa2 Ra1 Qe8 Qh2 Qh5 Rf1 Qb3 Ra3 Qb5 Rc3 Qd5 Rf2 Ne8 f6 Nd6 Ba1 Ba3 Nf1 c1N Bb2 Bb4 Rg2 Ba3 Rg5 Bb4 Rf5 Bc5+ Nd4 Ne2 Rc1 Ba3 Nb3 Nf4 Rc3 Bb4 Rc2 Bc3 Nc1 Kf7 g8B+ Kg6 f7 Kg7 f8N Bd4+ Kd2 e3+ Ke1 e4 Bf7 e2 Kd2 e1N Bg6 Be5 Ke3 Rg8 Rc3 Kh8 Rc2 Bg7 Rc3 Rb4 Rc8 Rb7 Nf6 Qb3 Kd4 e3 Ke5 e2 Kd4 Nc3 Kc5 Nde4+ Kc6 Na4 N6d7 Qf7 Ne6 Re8 Nef8 Re5 Qh4 Reb5 Qh2 Rb4 Rg5 Rd4 Rc5 Rbb4 Rf5 Rdc4+ Rc5 Bb5+ Kb7 Ba6+ Ka8 Rb7 Rf5 Qd5
bRrq3r/rR2p3/4Qb1N/bK1Rn3/N2N1Bn1/1B1R3N/1bp1qPk1/7b w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 g4 Kg6 d4 c5 b4 h5 g5 Kf5 d5 Kg4 b6 a5 d6 h3 b7 h4 d7 e3 b5 a4 g6 c3 Kd3+ e2 Kc4 h2 g7 h3 b6 a3 Bd2 a2 Qb3 e1B Qa3 c2 Bf4 c1B Qb2 Nc6 b8R Nf6 g8N Ba5 b7 Bg7 Qc3 Bb2 Qb3 Ne5+ Kb5 c4 Nh6+ Kh4 Be2 c3 Bd1 Nfg4 Qe6 Bf6 Bb3 c2 Nc3 Ra7 Rb1 a1Q Rd1 Rf8 Rd2 Qf1+ Rd3 Qe2 Na4 Rh8 Ra8 Re8 b8N Bb7 Nc6 Rg8 Rb8 Ba8 Ba2 Qc7 Nd4 Rc8 Bb3 Qd8 Ngf3+ Kh5 Rc1 h1B Ng5 Kh4 Rb1 h2 Nh3 Bhf3 Qd5 h1R Qe6 Rh2 Rb7 Bh1 Rd1 Qf8 d8R Qg8 Rd5 Qd8 Ng5 Rh3 Rb1 Rh2 Ngf3+ Kh3 Ng1+ Kg2 Nh3 Nc4 Rb8 Nce5 Ng8 Rb7+ Ka6 Qc7 Ng1 Rh4 Nh3 Qd8 Bc4 Rh8 Nh6 Ba3 Rb6 Nd7 Bb3 Bb2 Kb5 Ra7 R6b7 Nde5
1Nb2Rq1/2Q1pn2/n3nP1n/q5N1/r2RR3/Rqn1BB1K/pr2B3/3Bk1b1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Kf6 g4 Ke5 f3 a5 Kf2 d5 Kg2 h5 c5 e3 g5 Kf4 c6 a4 b6 a3 b5 h3+ Kh2 d3 c7 d2 g6 h4 b7 e2 g7 Ke3 b6 Kf2 f4 e1N f5 a2 f6 d4 Ba3 d3 Be2 Nc2 Nf3 Nh6 g8B Na6 b8R Nd4 b7 Nf7 Bc5 Bh6 Qc2 d1N Re1 d2 Ne5 Nc3 Nd7 d1Q Nd2 Be3 Nf3 Ne6 Ng5 Qd5 Ba7 Qa5 Rad1 Qe8 Bh7 Qg8 Be4 Rh7 B4f3 Bc5 Kh1 h2 Bb6 Ra7 Ra8 Bd4 b8R Rg7 Nh7 Rg2 Ng5 Be3 Rb1 Bc5 Rb4 Bd4 Rd1 Be3 Rd6 Ke1 Re4 Bg1 Be3 Rf2 Bd1 Re2 Rb3 Rg2 Qc1 Rb2 Rab8 Ra8 Ra3 Ra7 Qc2 Ra8 Kg2 h1N Rd3 Ng3 Rdd4 Nf5 Kh3 N5h6 Qc1 Bb7 Rf8 Bc8 Nb8 Ra7 Bfe2 Ra8 Kg2 h3+ Kg3 h2 Kh3 Ra7 Qc2 Ra8 Bf3 h1Q+ Qh2 Bb7 c8B Ra7 Bd7 Bc8 Bfe2 Ra8 Bc6 Qf3+ Qg3+ Qf2 Qc7 Ra7 Bf3 Qc2 Bb5 Qb3 Bbe2 Rb7 Rd3 Rb4 Rdd4 Ra4
1qN1brKb/3p1r2/r1b1R3/6nR/B1Bq4/2B1b2N/bQNp2kP/1BN4n w - - 0 1 illegal: No possible last move
kB1Rnb1b/bqpq1B2/N1Nn3p/1Q3P2/n7/b5Kb/Br1B2RR/2R2r2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kd7 Kf2 a5 d4 e5 b4 c3 g4 h6 d5 h3 d6 e3+ Kg3 e4 b6 Kc6 b7 a4 d7 c2 g5 h2 g6 e2 g7 e1Q+ Kg4 a3 Bd2 c1B Bc3 e3 Bd2 e2 Nf3 a2 Na3 Nf6+ Kh3 Ne8 g8B Na6 b8R Nc5 Nc2 Ba3 Rc1 a1B Bf7 Na4 Rb7 Rb8 b5+ Kd6 b6 Kc6 Rg1 h1N Rg2 Nf2+ Kg3 Qe7 d8R Bh3 Ra7 Qd7 b7 Bd4 Ra5 Ba7 Rh5 Rh7 Ba2 Rf7 Nb4+ Kb6 Nd4 Ne4+ Kf3 Rf5 Ndc6 N4d6 Na6 Qh4 Bf7 e1B Qe2 Qf6 Qd3 Qb2 Qb1 Bh4 B1c4 Bf6 Ba2 Bh8 Kg3 Ra8 b8B Kb7 Qe4 Rb5 f5 Qb1 Be3 Rb2 Bd2 Rb6 Bfc4 Bab2 Nab4 Nc3 Qe6 Bg4 Rhh1 Bh3 Qd5 Rb5 Qe5 Be3 Bab3 Ra1 Rce1 Na4 Na6 Ba3 Rhh2 Ka8 Bf7 Ba7 Ba2 Qb2 Rf1 Rb1 Qe2 Rb4 Qd3 Rf4 Qd5 Qb7 Qb5 Rb2 Rc1 Rf1
1Q1R1r1R/3NbRqB/rbnr4/1n2Nb2/8/2Nq1Pnp/3p2kB/KR1Nr3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Kf6 g4 Ke5 c4 Kf4 Kc2+ e3 Kb2 d5 f3 Kg3 b6 a5 g5 h5 g6 e5 b7 h3 b5 e2 c5 e1B g7 h2 b6 a4 c6 d3 c7 a3+ Ka2 h4 Bd2 h3 Nc3 e4 Qc1 d4 Qb1 e3 Qb3 e2 Nb1 Nh6 Nc3 Bf5 c8R Be7 Nd1 Nc6 b8N Rf8 b7 Nf7 Nd7 Nd6 b8N Bf2 Ne5 e1R Nbd7 Ra6 Qb8 Nb5 Bh6 d2 Bd3 Be3 Ne2+ Kg2 Bf4 Bf2 Be4 d3 Nec3 Bb6 Rf1 h1N g8R+ Ng3 Rh8 Kh2 Rb1 Kg2 Ka1 a2 Rh1 Be6 Bh7 Bf5 Nc5 Qd6 Ncd7 Qg6 Rc7 Qg7 Nb2 d1Q Rf1 Qe2 Nbd1 d2 Rg1+ Kh2 Rc8 Qd3 Rg2+ Kh1 Re2 Kg1 Rd8 Kh1 Re4 Kg2 Reb4 Ne2 Bh2 Ng3 Kb2 a1R Rf4 Bg6 Rf6 Bf5 Rf7 R1a4 Nd5 Rd4 N5c3 Ba5 Ka2 Rd6 Ka1 Bb6+
rK1B1n2/B1N2qr1/2bn3b/B2rkN1N/4p3/4P2N/1RpR1b2/Q1qbB1n1 w - - 0 1 illegal: No possible last move
1BBK1k1b/1rqRnr1b/NnRN1B2/Q6n/N3pnp1/B4q2/5N1P/r1q5 w - - 0 1 illegal: No possible last move
1B1B1n2/3RR1K1/B2b1q2/1r1qPr1b/1p2np1q/3RNBN1/1Rq4k/3Q1nr1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 b5 a4 h5 g4 c5 d4 f5+ Kd3 f3 e4 b3 g5 b4 g6 f2 g7 h3 a5 b2 a6 h2 a7 c4+ Ke3 h4 Kf4 h3 Bd2 c3 Bd3 f1N Ba6 c2 Ne2 c1Q Ra2 Qe7 Ng3 Qc2 Nc3 b1R Rb2 Qe6 Kg5 Nf6 Kg6 Rh5 g8R Nbd7 Rg7 Rb8 a8B Rb5 Re7 f4 Be3 Rf5 Rg1 h1Q e5+ Kc7 Bc6 h2 d6+ Kb6 Bf3 Ne4+ Kh7 Kc6 Nd5 Bb7 Bf2 Qg2 Ne3 h1Q+ Nh5 Qgh3 Rgg7 Qh4 d5+ Kc5 Bg1 Qhg2 Kh8 Qgd2 Rh7 Kd4 Ng3 Ba8 Ng4+ Kd3 Ba7 Bc6 Bb8 Ba8 Nh6 Ke3 Rhg7 Kf2 Kh7 Ndc5 d7 Kg1 d8B Nd7 d6 Kh2 Rgf7 Ra1 Kg8 Qdd5 Ng4+ Kh3 Ne3 Kh2 Re8 Be7 Kg7 Nf8 d7 Bd6 Ree7 Rc1 Bb6 Bc6 d8R Be8 Red7 Ra1 Rfe7 Bh5 Rc8 Ra3 Bd8 Rd3 Rc5 Rd2 Rc6 Rg2 Rc3 Rg1 Rd3 Qef6+
1rBQ1Rn1/1b1RqNn1/3N1Bb1/3p2Kb/3nRq2/2nP4/4qNp1/1kr2R1N w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c3 hxg4 Kf2 b5 Nf3 b3 Ke1 b4 Ng1 b2 Na3 b3 Nb1 Bb4 cxb4 Rh5 Nc3 Rh4 Nb1 Rh8 Kf2 Ke7 h4 Kd6 a4 Ke5 e4 Kd4 b5 c5 b6 d5 b7 f5 h5 g5 h6 g3+ Kf3 c4 h7 c3 e5 g2 e6 g4+ Ke2 c2 e7 f3+ Kf2 f4 e8N Nc6 b8R Nce7 a5 Bb7 a6 Nf5 a7 Ng7 Qe1 Qe7 Rd8 Rc8 Nc3 b1N a8R b2 Nge2+ Kd3 Nd6 g1N Ng3+ Ne2 Bh3 Nd4 Nd1 Nc3 Rd7 b1B Bb2 c1Q R1a4 Kc2 Rf1 Rc7 Nh1 g3+ Kg1 f2+ Kg2 Rc5 Rf8 Rc7 Bg4 f3+ Kh3 g2 Qe6 Rc6 Qf6 Rc8 Kh4 Rb8 Rg1 f1Q Ndf2 Qfe2 Kg5 Qcf1 Ba1 Kc1 Rc4 Bg6 d3 Kb1 Bb2 Ndf5 Re4 Nd4 Nd1 f2 Bh3 Qf7 Qd8 Qfe1 Ba1 f1B Ndf2 Rc8 Rde7 Rc6 Bc8 Rc4 Rd7 Qe7+ Rf6 Qf3 Bb2 Be2 Rf1 Bd1 Ba1 Qee2 Bb2 Na4 Ba1 Rc1 Bb2 Nc3 Ba1 Nh6 Bb2 Rf8 h8N Ng8 Nhf7 Ba4 Rc7 Be8 Rd7 Bh5 Ne5 Beg6 Nef7 Re8 Nh6 Nc6 Qc7 Ba6 Bb7 Rb8 Bc8 Bb7 Qd8 Nb5 Bd4 Nc3 Be5 Qe8 Rf8 Qe7+ Bf6 Nd4 Nhf7 Qf4+
1R1N3Q/1n1Nq3/2N1q1P1/nBR1r3/4n1bb/k2p2np/N1r3Bb/Kq1B2B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Kd6 e4 Kc5 c4 Kb4 Kc2 h5 g5 d5 b6 a5 g6 f5 b7 d3+ Kd2 a4 e5 d4 e6 f3 e7 h3 e8B f2 c5 h4 b3 h2 c6 a3 c7 f4 Be2 f1Q Bc6 a2 Be8 f3 Bb2 h3 Kc1 f2 Nc3 Be7 Bb5 Nc6 b8N Nf6 Nd7 Rh5 Nf3 Qe1 Rb1 f1Q Ng5 a1B Nf7 d2+ Kc2 Qf8 Nd8 Na5 Bg4 Nb7 Na2+ Ka5 Rc1 d3+ Kb1 Qe6 Bd4 Re5 Bg1 Ne4 Rc5 Bh4 Qc1 d1N Qb2 Ne3+ Bd1 Nc4 Qd4 Rf5 Qg7 Be5 Qh8 Bd6 Ka1 Rh5 Nf6 Bd7 c8B Qfe7 b4+ Kb6 Bc6 Re5 b5 Ka5 Bd5 Qe1 Bc6 Qb4 Bd5 Qb3 b6+ Ka4 Bc6+ Ka3 Bb5 Be8 Bcd7 Rc8 Bdc6 Bd7 Bd5 Rc7 Bdc6 Bc8 Nd7 Nca5 Bd5 Nf6 Bg2 Ne4 Bf2 Rc6 Rf1 h1N Bg1 Bb8 Rf8 Nhg3 Re8 Nbd6 b7 Qb4 Rd5 Rc2 Rc5 Bc7 b8N Ndb7 Rg8 Qeb3 Nb6 Bg4 Nbc6 Qbe6 Nd7 Rf5 Nd4 Nf1 N4c6 Bh2 Nf7 Re5 Rb8 Nfg3 Nfd8 Qb1+
1Bq1R1Q1/KrnN1r2/bNP1r3/6NR/B2b1p1n/1B1p3q/1r1Bq2n/1k1N4 w - - 0 1 illegal: No possible last move
1N1r1Bk1/K2rB2R/2pBrq2/3qR1r1/Rnq2Q1R/NP4n1/b2p2b1/b6B w - - 0 1 illegal: No possible last move, all moves rejected
N1r2BB1/2B2b1K/1npRqqN1/N3Q1r1/1N1R1P2/2b2rqb/1Bp5/1n3kr1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 g4 h5 Kg6 a5 b4 e5 f4 h3 d3 c3 g5 h2 b6 c6 b7 c2 b5 a4 b6 h4 Qh5 e3 Bh3 a3 Nd2 e4 Nc4 e2 Na5 e1Q Be6 a2 Bb2+ Ke3 d4 Kf2 d5 e3 d6 h3 d7 e2 Nf3 Nf6 Ne5 Nd5 Nec4 Bb4 Bg8 Nc3 Rd1 a1R Rd6 Ra3 Kg7 Ra6 g6 Nb1 Qe5 Rf3 Rd4 Qh4 d8B Bc3 Bc7 Nd7 b8B Qg1 b7 e1Q Ba7 Nb6 b8N Qgg3 Rd6 Qe4 Rhd1 h1R R1d5 h2 Rd4 Nd7 Bc5 Kf1 Bca3 Rg1 Nb6 h1B Na8 Nb6 Bb4 Ra7 Na6 Bh3 Bc5 Qd8 Bca3 Rh5 Nb4 Rg5 Kh7 Qe3 g7 Qf6 Bd5 Rb7 g8N Rb8 Ne7 Rc8 Bg8 B1g2 Ng6 Be6 Nd3 Bgh3 Bc5 Qe4 Nb4 Qef5 Rd7 Bf7 Bf8 Q6e6 R7d6 Qff6
1BNk3n/1qn5/1p2Pb1Q/1B4RB/8/qr1bNpKr/NR1qBn2/1q3Nb1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f5 a4 h5 d4 c5 g4 b3 e4 c4 a5 b2 g5 h3 g6 b6 d6 h4 g7 h2 d7+ Ke7 e5 c3 e6 c2 d5 f3 a6 h3 a7 f4 Nc3 Na6 Rb1 Nh6 g8B Nf7 Qd2 Bg7 Nd1 Bf6 Ne2 Qf8 Rg1 h1Q d8N Qh2+ Rg2 Bd7 Nb7 Bb5 Ng3 Qc8 Nd6 Qb7 Qe3 Rh7 Bd2 Nh8 Bf7 c1B Bc4 Rh4 Bh5 Rc8 Bd3 Rc3 Bc4 Rd3 Bc3 Bd2 Be5 Bc3 Qc1 Bd4+ Qe3 Rb3 Bd3 Qh1 Bf1 h2 Nc8+ Kd8 d6 Rh3 Be2 Bd3 d7 Bc5 Bb8 Nc7 Nd6 Ke7 d8N Be4 N6f7 Bd3 Nc6+ Ke8 Nb4 Ke7 Nd6 Kd8 Rg1 Bcd4 Be8 Bc5 Bc6 Bcd4 Nc8 Bc5 Rc1 b1Q Rc2 Qb2 Bb5 Qa3 Na2 Bcd4 Bf1 Bc5 Rb2 Qg2+ Ke1 Qc2 Be2 f2+ Kf1 h1N a8B Qba7 Kg2 Qc1 Baf3 Qd2 Bh5 Q7a6 Kf3 f1Q+ Kg4 f3 Qh6 Bf2 Ne3 Qb1 Ngf1 Qb7 Rg3 Bg1 Kf4 Qdc2 Rg5 Qd2 Kg4 Nf2+ Kf4 Rh1 Kg3 Rh3+
rb3Br1/kq1N4/p2BN2Q/N2B1n2/2K1bBnq/5bP1/2npRb1N/3r1R2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 c4 Kd7 b4 Kc7 f4 Kb7 b6 h5 b5 e5 g3 h3 c5 d3 Kc3 h4 f5 d4+ Kb4 a6 f6 d2 f7 e3 Na3 d3 Bg2+ e4 Kc4 h2 Qf3 d1R Qf4 e2 Qh6 e1N Bf4 d2 Nc2 h3 Nf3 e3 Rf1 h1B Nh2+ Nc6 Nd4 e2 Ne6 Nf6 Bd5 Bd6 f8B Nc2 Ra4 Kb8 b7 N6d4 c6 e1B c7+ Ka7 b8N Nf5 Nd7 Be4 Ra3 Rg8 Re3 Bb7 Re2 Be7 Bd6 Bf2 Bf4 Bc6 Bd6 Ng4 c8N+ Kb7 Bf4 Bd6 b6 Qh4 Ne7 Be5 Nf6 Kb8 b7 Ka7 Nd7 Bc7 Nf3 h2 b8B+ Kb7 Bd6 h1Q Nh2 Bf3 Bf4 Be5 Bd6 Ka7 Bb4 Bb8 Bbd6 Ng7 Nf5 Be4 Nfd4 Nf5 Nb3 Qf3 Na5 Qg2 Nd4 Bf3 Bf7 Bce4 Bd5 Qgh3 Ne6 Qe7 Nb6 Qb7 Nd7 Qh4
kB3nb1/b2BN1PN/BR2r1qR/5K2/2p1rnp1/4qN2/2rb4/1nn1BQN1 w - - 0 1 illegal: No proof kernel
1B1Q2br/n1N1n1p1/2B1N1R1/RN1N4/4q1b1/qkrp4/1q3Pr1/2BKbrB1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 b4 Kf7 h4 Ke6 c4 d5 c5 a5 b6 e3 b7 d3 c6 d4 b5 Kd5 b6 Kc4 c7 e5 h5 e2 h6 e4 h7 g3 Rh2 g2 Ra2 a4 Rd2 a3 Nc3 a2 Rh3 a1Q Rg3 Nc6 b8B Qe7 b7 Qea3 Ra2 Na7 Nf3 g1R Nd5 Q1b2 Ng5 Be6 c8N Ne7 Nc7 Bg8 Nge6 Rg2 Nb6+ Kb4 Qd2+ Kb3 Ra1 Ng6 Rg5 Bb4 Nbd5 Ne7 Rg6 Ba5 Nb5 Bb4 Bh2 Rc8 b8B Rc3 Qg5 Qb1 Kd2 e1R Bg1 Ba5 Be2 Rf1 Nec7 Bb4 Bf3 Ba5 Qe3 Bb4 Qe1 e3+ Kd1 d2 Ra2 Qe4 Ra1 Qb2 Ra5 Qa3 Nf6 Qb1 Bc6 Qbb2 Nfd5 Rc4 Nb6 Rc2 Ke2 d1B+ Kd3 e2 Qd2 e1Q Qg5 Nf5 Nbd5 Bg4 Qd8 Ne7 Bf4 Bf7 Bc1 Rg8 h8N Bfe6 Nf7 Rh8 Ng5 Bg8 Bf4 Qeb1 Nge6 Be1 Bg5 Bh3 Bd2 Rc3+ Ke2 Qe4+ Kd1 d3 Bc1 Bg4+
k1K2B2/5Pnn/2R4R/B2nBN2/1RbR1b2/pp1q1B1r/1Q3b2/qNq1rn2 w - - 0 1 illegal: No proof kernel
q1rk4/b2Bp1B1/1K2Rq2/4N2R/1B2rN1q/1n1p2Qb/1P5b/nBNbr2N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 d5 f4 h5 c4 a5 g4 h3 f5 e3 Kd3 h4 g5 e2 b6 e1B c5 a4 b7 a3 c6 h2 g6 a2 g7 h3 c7 Ra4 f6 Na6 b8B Bg3 Bd2 Nh6 g8N Qd6 Bb4 Nf5 Na3 Ne3 Qf3 Bg7 Nh6 Nc2 Re1 a1R Re6 Re1 Ng4 Na1 f7+ Kd7 Qf4 Be5 f8N+ Ke8 Ne2 Nc5+ Kd2 d3 Ke3 d2 Nc4 d1B Ng6 Ncb3 Nf2 Bd7 c8B d4+ Kd3 Qb6 Nc1 Kd8 Ba7 Bb8 Nce5 Qd6 Kc4 Rg8 Bg2 d3 Bd4 Rf8 Bd5 Re8 Qe3 Rf8 Nf4 Rh8 Rg1 h1Q Rf1 Bh2 Qg3 Qf3 Nh1 Qg4 Rf2 Qh4 Re2 Re8 Rh6 Rg8 Rh5 Qdf6 Bc3 Bf5 Kb5 Re8 Bd7 Rf8 Bd6 Re4 Kb6 Ra4 Na2 Nc1 Ba5 Qf7 Neg6 Bg1+ Nf2 h2 Re5 h1Q Bc3 Bh3 Re2 Bh2 Bg7 Qff6 Re6 Qe4 Bb3 Qa8 Nh1 Rae4 Bc2 Ncb3 Bb4 Rg8 Ne5 Rh8 Kb5 Kc7 Bb1 Rc8 Nc1 Kd8 Kb6 Ba7+
1Kbq3r/n1P3B1/2Nbr2N/5qRR/b2pr3/1q6/kn2pRB1/2RqBQB1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 a5 g4 d5 b4 h5 f5+ Kd6 b6 e5 f6 e3+ Kd3 h3 b7 e2 b5 Kc5 g5 Kb4 f7 e1R g6 h2 c5 a4 b6 h4 g7 h3 c6 a3 c7 a2 Nf3 Ra6 Nc3 Nc6 b8R Re4 b7 Na5 Bd2 Ka3 Bg2 Re6 Ne2 Ne7 g8R Nec6 Ng5 Nc4 Rc1 a1Q Be1 Bd6 f8B Na7 Bg7 Qb2 Nf7 Ka2 Nh6 Qb5 Rf1 h1Q Rf2 h2 Ra8 Qf1 b8B Rh7 Rh8 h1Q Rg8 Qh5 Rh8 Qf5 Rg8 Qa4 Rh8 Nc6 Ra5 Qg1 Ba7 Nb2+ Kd2 d3 Kc3 d2 Nd4 Qf1 Bb6 Na7 Nc6 Qb5 Qe2 d1B Qf1 Qe2 Bd4 Qeg4 Rc5 Qc2+ Kb4 Qb3+ Ka5 Qe2 Be3 d4 Rb5 Bc2 Kb6 Qd1 Rg8 Bd7 Kb7 Bc8+ Kb8 Rh8 Bb4 Rh4 Be1 e4 Re2 Rg4 Bg1 e3 Rd2 Rge4 Rf2 Qc3 Rc5 e2 Rd5 Ba4 Re5 Qh7 Rg5 Qcd3 Rgf8 Qg6 R8f5 Q3c2 Rh5 Qb1 Rfg5 Qf5 Ng4 Qbc2 Nh6 Qb3+
2Nb3R/1qpr2KP/4p1nB/N1Bb3k/1q1Q1b2/N4N1r/B4n1R/2r1bnB1 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kf7 Ke3 Kg6 Kf4 a5 Ke5 c3 b4 e3 h4 e2 f4 e1B d4 e6 f5+ Kh5 f6 g5 f7 c2 b6 a4 b7 a3 d5 a2 b5 Ne7 Kf6 Bh6 f8B Nbc6 b8B Qd6 b6 Nb4 b7 Nd3 Rh2 Nf2 Na3 Ng6 Nf3 g3 Ba7 g4 b8N g2 Nc6 g1Q Na5 g3 Qd4 g2 Bc4 Bf4 Kg7 Qb4 d6 Qh1 d7 g1N d8N Bb7 Ndc6 Ne2 Ne7 Bd5 Nc8 Ng3 Bfc5 Nf1 Rb1 a1B Ba2 Rb8 Bd2 c1R Rb2 Kg4 h5 Rd8 h6 Rd7+ Ne7 Rf8 h7 Rf5 Rb1 Rh5 Be3 Rh3 Bab6 Rd8 Nc8 Kh5 Ba7 Bac3 Rb2 Bcd2 Rb3 Bg5 Bf4 Be7 Bh6 Bf4 Rb1 Rd7 Rb2 Qa4 Rb8 Qb3 Nd6 Qb1 Rh8 Qb4 Nc8 Bd8+ Be7 Qg2 Ng5 Qh1 Qd2 Ng4 Bg1 Bb3 Qd4 Qhb7 Nf3 Bc4 Rf8 Nf2 Rh8 Rd5 Bc5 Rd6 Kf7 Bd5 Kg7 Rd7+
1N4Rr/1P1Nn2B/r1qq3k/BN1Rn3/Br3n2/6b1/pNp1q1B1/1rK2Q1b w - - 0 1 illegal: No possible last move, all moves rejected
1q6/p4N1r/1B3Bqq/1Nn1QNp1/1N2K1RB/1rb1P3/B1b3rR/n2b1k1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 b4 Kd5 h4 g5 c3 f5 h5 g3 h6 g2 b6 f3 b7 f4 b5 f2 h7 f3 e3 Bb4 b6 Na6 b8B Nf6 b7 Ng4 Rh3 Ne5+ Kd2 Ke4 Rg3 d5 Be2 f1Q Bc4 f2 Ba3 d3 Ba2 d4 Ne2 g1R Rg4+ Kf3 Ng3+ Kg2 Qe2 Ba5 Bc5 Bf5 Na3 Nb4 c4 Qb1 Nb5 Qf8 Bbd6 Qb8 Bb6 Nc2+ Bb4 Bg6 c5 Be4 Qd1 f1Q c6 Qf6 c7 Qh6 c8N Kf2 Qc1 Rg2 Qb2 Qbh1 Rd1 Na1 Nf5 Q1h5 Re1 Q5g6 Re2+ Kf1 Bc3 Bb4 Nce7 Ba5 Nd5 Bb4 Kc1 d2+ Kd1 Nd3 Rf2+ Kg1 Ke2 d1B+ Kd2 Ba5 Re2 Kf1 Nb4 Rf8 h8N Rf7 Qa3 Rh7 Nf7 Ne1 Qc1 Bec2 Qb2 d3 Be5 Nf3+ Kc3 d2 Bf6 Ne1 Kd4 Nd3 Kd5 Qd6+ Ke4 Qb8 Nd5 Bc3 Nb4 Qbh2 b8B Qh1 Bh2 Rb8 Bg3 Q1h2 Bbd4 Rb6 Bf2 Qb8 Bh4 Kg1 Re1+ Kh2 Qa3 Bb2 Nbd6 Be2 Qa5 d1Q Nd5 Rb3 Bb6 Bc3 Rf1 Qe1 Nb4 Bed1 Qd5 Rg3 Rh1+ Kg2 Rh3 Qh1 Rh2+ Kf1+ Rg2 Qg1 Rh2 Rg2 Qe5 Qh1 Nb5 Nc5+
B1b5/B4rbb/rN4n1/kq1p1r1b/3r2QB/N2p1P2/n1RRb3/2B1NN1K w - - 0 1 illegal: No proof kernel
5RBk/bK1p1Rr1/nrr2Rrn/8/B3R1P1/1N3p1q/B1bN4/1rb1B1Qb w - - 0 1 illegal: No possible last move, all moves rejected
1k2r3/Rp6/bKp3nn/BrN4n/qP1N1RBR/RNn2N2/2r1r1Q1/b2n4 w - - 0 1 illegal: No possible last move
3NqbR1/2bR3P/2Brr1np/4bn1k/1r2pB1N/BQ5K/N3NB2/1n1r3b w - - 0 1 illegal: No proof kernel
1K1kn2N/N1NP1nbQ/b2NB2r/1B4RR/b4brB/5B1p/1p5r/2n2qn1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f5 Kf3 h5 e4 b5 d4 c5 a4 h3 g4 b3 d6 h4 g5 b2 a5 h2 g6 b4 e5 b3 g7 c4 d5 c3 a6 c2 a7 Nh6 g8B Qf6 d7+ Kd8 e6 Na6 Nc3 b1B Nb5 b2 Ne2 Nc7 Nec3 Bg7 Qd3 Ne8 Ne4 Nf7 Ned6 Ba6 Ra5 Rh6 Be3 c1B Bf2 Rb8 a8B Bc2 Na7 Rb4 Bc6 Ba4 e7+ Kc7 d8N h3 Rg1 h1R Bh4 Rh2 Rg5 Re4 Bb5 Rc4 Bg2 Rb4 Kf2 f3 Kg3 f2 Bf3 f4+ Kg4 f1N Qh7 Ng3 Rh5 Ng5 N8f7 Ne2 Nh8 Ng1 Be6 Nf7 Rg5 Qc3 Kf5 Qc4 Rh5 Qf1 Rg5 Nf6 e8N+ Kd8 Nc7 Ne8 Nc4 Be3 d6 Bd2 d7 Bc1 Bfd5 f3 Nd6 f2 Bf3 Rg4 Rh5+ Bf6 Rg5 Bf4 Ke4 Bg7 Kd5 Qg2 Kc6 f1N Kb6 Nd2 Kc6 Nb3 Kb6 Qf1 Kc6 Bb7+ Kb6 Bd5 Ka6 Bc4 Kb7 Nc1 Kb8 Rf6 Bbc6 Ba6 Rae5 Nce2 Bb5 Nc1 Rd5 Rg6 Rh5+ Rf6 Rdg5 Rh6
1K5n/1N3rB1/b1R2nB1/RRr1P1n1/3k1Np1/np1qN1q1/6R1/qN1Qb1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 e4 f5 a5 g5 h5 b5 h6 b3 h7 b4 d6 f3 Ke3 g3 e5 g2 d7 f2 d3 g4 Kf4 b2 a6 b3 a7 Ne7 Be2 f1N Ra5+ Kd4 Rh4 c5 Rh2 c4 Nh3 g1Q Rg2 c3 Bf3 c2 Be4 Rg8 h8R Ba6 Rh6 Nd2 Rc6 Rg7 Rb5 Rf7 Nf2 Qb6 d8N Nd7 Nb7 Rc8 a8R Nf6 Kg5 f4 Bg6 f3 Kf4 Neg8 Kf5 Ne7+ Ke6 Nde4 Bh6 c1Q Bg7 Ng5+ Kd6 Qc3 Ra7 Qba5 Ra8 Qa1 Ra7 Rd8+ Kc7 Rd5 Kb8 Rc5 Ra8 Kd5 d4 Kc4 Bh5 Ng6 d5 Nh8 d6 Qd3 d7 Kd4 d8N Qh2 Nh3 f2 Bg6 f1Q Nf4 Qfg1 Na5 Qg3 Ndb7 Be7 Ra7 Bd8 Nc4 Ba5 Ne3 Be1 Nd2 b1N Ra8 Na3 Nb1 Ng8 Rbb6 Bb5 Ra5 Ba6 Rbb5 Nf6
Q4K2/b6n/rNn3kB/N1P3qR/2Bn1q1r/RnRrpb2/3Rp1Br/1B6 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 c4 e5 g4 b5 f4 d5 a4 h5 f5 e3+ Kd3 b3 a5 e2 a6 h4 f6 b2 a7 b4 Nf3 h3 Ra2 b3 Na3 b1N Nd2 b2 Qa4 h2 Bg2 Kg6 f7 Nc3 Nb3 b1N Na5 Nf6 Rd2 Bc5 f8R Rh4 Rh8 Qc7 Rh5 Nb5 Rg1 Bb6 c5 h1R N3c4 Bb7 Rf1 Qe7 Rf3 R1h2 Qa1 Nc6 Qa3 Rb8 a8R Ba7 Nb6 Rd8 Rh3 Rd6 Qa4 Kg7 g6 e4+ Kc2 d3+ Kb3 d4 Kc4 Qe5 g5 Qf4 Qa3 Bc8 Rg3 Bg4 Qa4 Bf3 Qa2 Bb8 Ra6 Ba7 Rh3 Kf8 g7+ Kf7 g8B+ Kg7 g6 Re6 Rc2 d2 Bh7 d1R Rd2 d3 Qa1 Nbd4 Qa2 Kf8 g7+ Kf7 g8B+ Kg7 Rb2 d2 Rg3+ Ng4 Kd5 Rh6 Qa1 Qg5+ Bf5 Nf6+ Kd6 Rg6 Bc4 Rh6 Bd7 Kg6 Qa2 Na3 Bde6 Nb3 Bd3 Nc2 Bec4 N2d4 Bb1 Re1 Qa4 d1Q Rd2 Qc2 Rh3 Rd1 Qa3 Qc3 Qa1 Qb4 Qa3 Nb8 Ke7 Nbc6+ Kf8 Qa4 Ra2 Rd3 Rd2 Qb4 Na4 Qb7 Nb6 Qc7 Qa4 Nd8 Qc6 Qcf4 Qa8 N8c6 Nb7 Rh7 Ra3 Rc7 Na5 Rb7 Nd7 Rb6 Rg3 Ra6 Nb6 Nb8 Rh3 Nbc6 Bb2 e3 Qd8 Nf5 Qa8 Nd5 Bg7 Rh1 Bh6 Nf6 Rh2 Nfd4 Rh3 Bd5 Rf3 Be4 Rf1 Bf3 Rc1 R1h2 Rc3 Nh7+
N1R1N1q1/1K1Qb2b/B2p1p2/nB1qr1r1/2n1b2b/1N1k1r2/1PR5/2B1r1BN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 h4 g5 c4 a4 e3 d3 c5 d6 h5 a3 c6 a2 h6 d2 b6 f6 b7 f3 c7 g3 h7 f2 Nf3 g4 Qa4 d1Q+ Nbd2 g2 Ng1 g3 Bb5 f1B Ne2 g1R Rh2 Nc6 b8B g2 Ba7 Na5 Rb1 Bd7 c8B a1R Bca6 Nc4 Bc5 Bc8 Kc6 Be7 Nb3 Ke4 Ng3+ Kd3 e4 Bf5 e5 Qd2 Kb7 Be4+ Bc6 Qf8 e6 Re8 Nh1 Qg5 Qb5 Qd5 Ba7 Be2 Bf2 Re1 Bg1 Ra5 Ra1 Bd1 Ra3 Bc2 Ra2 Nh6 Ra4 Rg8 h8N Nf7 Ng6 Ne5 Ra1 Qg7 Nf8 Ra3 Nd7 Qh8 Ra2 Rg5 Nb6 Qg8 Na8 Bb1 Qa5 Bh7 Qc7 Be4 Qd7 Bh7 Bb6 g1B Rc2 Bf2 Bbe3 Bh4 Bg1 Qc5 Bcb5 Nc6 Ra1 Qd5 Ra2 Rf8 Ra1 Rf7 Ra2 Rfg7 Ra1 Rge5 Ra2 Rgg5 Ra1 Bf8 e7 Be4 e8N Be7 Nd2 Ke2 Ra2 Rf3 Nb3+ Kd3 Ra5 Bh7 Ba4 Ke4 Rf2 Nd4+ Bc6 Bd3 Rc5 Bc2 Kc7 Bd3 Bcb5 Bc2 Kb8 Bb1 Rc7 Nc6+ Kb7 Bc2 Na1 Kd4 Rc8 Bce4 Nb3+ Kd3 Rc2 Na5+
3rq1Rb/2k1N1BN/1qpn2R1/1n5P/q3q1b1/1Q1pB1BK/1R1r2rR/3Br3 w - - 0 1 illegal: No proof kernel
2QK1B2/1R2NbR1/1bp1bB1q/1n2pr2/n1N3n1/r3Pn2/1N1q1k1B/BN4b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 c4 gxf4 axb5 d5 g5 dxc4 Bh3 Bb7 Bf5 Bc8 Bg4 hxg4 Kf2 Kd7 b4 Kd6 h4 Kd5 d4 Ke4 b6 f5 d5 a5 d6 c3 g6 c2 g7 a4 d7 f3 Kg3 c6 h5 f4+ Kh4 f2 Kg5 f1B h6 g3 b5 f3 h7 a3 b7 a2 b6 g2 Ba3 Ke3 Nh3 g1B Nf4 c1Q Nd3 f2 Nb2 Nh6 g8N Na6 b8N Nc5 b7 Na4 Qd5 e6+ Ne7 Ng4 Qf5 Bg7 Qf8 Rg8 h8B Bd4+ Bg7 Bg2 Rh7 f1N Qe8 Kf2+ e3 Nfh2 Bd6 Qc7 d8B Rf8 Nd7 Bd5 b8B Qd2 Nb6 Rf5+ Kg6 Nf3 N6c4 Ra5 Bh8 Bd7 Rg7 Ra8 Bh2 Qf4 Be5 Ra5 Bf6 Qh6+ Kf7 Ra8 Bb6 Ra7 Qc8 e5+ Kf8 B7e6 Ke8 Bf7+ Kd8 Bde6 Ba5 Ra6 Bc3 Ra8 Rg6 Ra7 Bhg7 Ra6 Bf8 Ra5 Nba3 Ra6 Rb1 a1N Rg7 Nc2 Ra1 Ra7 Nb1 Na3 Ra2 Nb5 Ra3 Nc5 Rb3 Ra3 Rb4 Na4 Rb3 Nc7 Rb7 Nb5 Nd1+ Kg2 Ba1 Kf1 Ndb2 Ke2 Rd7 Kf2 Rb7 Bb6#
N1b5/2n2RB1/pqqk1n2/2r1R3/1R3rBn/B1P2nRK/pBbb1b2/2Q1N3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 f4 d5 Kf2 Kd7 b4 e5 g4 h5 Kg2 e4 g5 e3 f6 a6 c3 h3+ Kh2 e2 b5 e1B f7 d3 f5 d4 g6 h4 g7 d2 f6 d3 b6 a3 b7 a2 Qf3 d1B Bg2 d2 Qf1 Bc5 f8B Bc2 f7 d1N Nd2 Bcf2 Nb3 Qb6 Bb2 Rh5 Na5 Rc5 Nc4 Nf6 g8R Bd2 Bf3 Ne3 Bg7 Ned5 f8B Nc7 Re1 Nc6 b8R Nd4 Bg4+ Kc6 Re7 Ra7 Nf3 Rb7 Ne3 Kd6 Qc1 Ra7 Rf1 Rb7 Ne1 Nf3+ Kh1 h2 Kg2 h1N Nd5 Ng3 Kh3 Ra7 Rb7 Nf5 Rb8 Nce8 Re5+ Re7 Bh6 Nc7 Bfg7 Rf7 Ba3 Qb3 Nb6 Qb4 Na8 Qb6 Rg1 Rf8 Rg3 Rf7 Rge8 Rf8 R8e7 Rf7 Kg2 Rf8 Rf7 h3+ Kf1 h2 Kg2 N5h4+ Kh3 Rh8 Be3 Rh5 Bb2 Rf5 Bg5 Rf4 B5h6 Qa5 Rb4 Qb6 Bg5 Nfe8 Bd8 Nf6 Be7+ Kc6 Ree4 Rh5 Rb3 Nd4 Bb4 Rc5 B4a3 Kd5 Re5+ Kd6 Rg2 h1Q+ Rh2 Bb1 Rb4 Qhc6 Rg2 Ndf3 Rg3 Bc2
Qrn1qB2/N4P1N/2nr1p2/qBKRq1q1/2B2n2/R3B1k1/1pRb4/Rn3b2 w - - 0 1 illegal: No proof kernel
4n1N1/nbP1b3/pq2BR1r/KnR2R1B/2Qpk1r1/2BR3n/2q1N3/1r1r2B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Kf6 b4 Ke5 c4 h5 e4 d5 c5 f5 b6 h3 c6 h4 g5 f3 c7 f2 g6 h2 g7 a6 b5 d3 Kc3 h3 b7 d2 b6 f4 Qc2 d1Q Bc4 f1R Bb2 f3 Ra3 f2 Nd2 Qf6 Ne2 Nc6 b8R Qf5 b7 Nf6 g8R Na7 Rg6 Ne8 Rf6 Qb1 Bb3 Rc1 Rf1 h1N Ra5 h2 Rc5 Qh7 Ba1 Qb2+ Kb4 Be7 Ka5 Rb1 Qc4 Ng3 Rd1 Qd4 Bc3 h1N Ba2 f1R Rf5+ Ke6 e5 Nf2 Ne4 Nh3 Rd3 Rfd1 Nf6 Ne4 Ng8 N4d6 Bb3 Ndb5 Ba2 Kd7 e6+ Kd6 Rf6 Ke5 Bb3 Bf8 e7 Ke4 Rf5 Qg6 Ba2 Rh6 Bb3 Nf6 e8B Be7 Bf7 Qg2 Bh5 Ne8 Rf6 Be6 Rd8 Bc8 b8B Bb7 Rf5 Qf2 Rd6 Qg2 Nc1 Qc2 Rdf6 Nc8 Ba7 Rb8 Bb6 Nca7 Ne2 Rd8 Rf7 Rdd6 Rf8 Rdg6 R8f6 Rg4 Ba4 Na3 Bd7 N3b5 Be6 Rg7 Rc6 Rg4 Bc5 Rdc1 Bd6 Rd1 Bh2 Qb2 Bg1 Qc2 Qa2 Qc5 Qb3 d4 Qc4 Qd6 Rcc5 Qb6+
2qBN1Q1/p3r3/BP1BRR1R/rnb1qN2/2bBR3/p2k1n2/3b1Kq1/1q1b4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 d4 Ke7 g4 Kf6 b4 h5 e4 c5 b5 c4 b6 f3 d6 h3 d5 Ke5 d7 f5 g5 c3 d6 h4 g6 h2 g7 a3 Ba6 f4 Ne2 h3 Bd3 c2 Nd4 f2+ Ke2 f1Q+ Kd2 f3 Ke3 f2 Nf5 Qg2 Rf1 h1Q Ba6 h2 Nd2 Nc6 Qg4 Nf6 g8R Rh5 Bb2+ Nd4 Rg6 c1B Rh6 Ne8 Qg8 Nc7 Rb1 Qf6 d8B Nb5 d7 Bc5 Be7 Qh8 Re1 f1B d8B Bc4 Rf6 Qg5+ Kf2 Rb8 Bf8 Rb7 Ra1 Kf4 e5 Nf3+ Bd4 Re7 Ne4 Bd2 e6 Bd7 Re3 Qb1 Ned6 h1Q Ne8 Qgg7 Rh6 Qe5 Re1 Qh3 Rf1 Ke4 Re1+ Kd3 Re4 Rf7 Bd6 Rg7 Ra2 Re7 Rc2 Bc8 Rc1 Qh1 Rg1 Bb7 Rgg6 Bbd5 Rf6 Bb3 Qh7 Bdc4 Qf7 Bd1 Qg8 Rf7 e7 Qh3 Neg7 Rg5 e8R Re7 Ref8 Rh5 Ne8 Qg4 Rfg6 Qh3 Rff6 Qg7 Ng3 Qc8 Nf5 Bcb4 Rf7 Nc3 Kf1 Qg3 Ne3 Ra5 Nf5 Bc5 Rge6 Q3e5 Rff6 Nb5 Kf2 Qg2+
1QRKbNkb/1q3N2/1N1R2B1/B3pqpR/N3P2n/4b2n/R1nn4/rn4q1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 f5 h4 a5 h5 axb4 Nf3 b5 Ng1 Ra6 Rh2 g5 Rh1 Rg6 hxg6 fxg4 Kd2 h5 Kd3 d5 c4 e5 f4 b3 a4 b4 g7 Kf7 f5 h4 e3 g3 c5 b2 c6 g2 f6 b3 c7 h3 a5 h2 a6 Nc6 a7 Qd7 a8R Qf5+ Ke2 Nb4 R8a6 Bd7 c8R Ne7 g8N Be8 Rd6 Bg7 Nf3 g1B Nfd2 Nc2 Ra2 Ng6 Nc3 b1N Nc4 b2 Nb6 Nh4 Nca4 Nd2 Nh6+ Kf8 f7 b1N Bh3 Rg8 Bg4 Bh8 Bh5 Kg7 f8N Bf2 Rf1 h1Q Bg6 Qg1 e4 Be3 Nh7 Rf8 Kd3 Rf6 Nf7 Kg8 Qg4 Re6 Rd1 Re7 Nf8 Ra7 Re1 Ra5 Bb2 Ra7 Bc3 Ra6 Ba5 Ra7 Ke2 d3+ Kd1 d4 Qf3 Qf2 Rh1 Qd7 Qf6 Qb7 Qd8 Qf5 Rh3 Nb3 Qc7 d2 Ke2 d1N Kd3 Nf2+ Kc4 d3 Qb8 d2 Rh1 d1Q Rh2 Nbd4 Kc5 Nh3 Rh1 Qg1 Rh2 Qc7+ Kd5 Ndf3 Rh1 Qf4 Ke6 Nfd2 Rh2 Ra6 Rh1 Qc6 Ke7 Qb7+ Kd8 Qff2 Rh2 Qf5 Rf2 Ra8 Rf4 Ng2 Rh4 Ra6 Rh6 Nh4 Rh5 Qc1 Bc3 Bf2 Ra1 Bg7 Nb2 Bh8 Ra3 Ra4 Ba5 Be3 Ra1 Ra3 N2a4 Qh1 Ra2 Qg1 Rb2 Ra1 Ra2 Qd1 Rd4 Qdg4 Rd6 Qg1
1n1K1n2/1p4N1/4nR2/1n1R2BN/3BB1n1/bP1b2B1/1p2nrqQ/kqb1NN2 w - - 0 1 illegal: No proof kernel
bn2q1q1/2BbN1pR/b1NB2r1/1nR3Pq/4k3/6nQ/Bp2Nb1N/B1K1n3 w - - 0 1 illegal: No possible last move, all moves rejected
8/BN4K1/n1B2rnn/1qq5/1p1QB3/P1br1bpk/2RRB1Rp/rb2NR2 w - - 0 1 illegal: No proof kernel
RQ2KB2/BR1Bb2p/3N1R2/4qn1k/1n1p4/p2b1N1P/1R1nqr2/1q2b1rB w - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 Kf7 Kd3 Kg6 Ke4 a5 Kd5 g3 c4 d6 e4 g2 f4 d3 c5 b3 c6 a4 c7 d2 b6 a3 h3 b2 e5 Be7 f5+ Kg5 f6 g6 f7 Na6 Kc6 d5 f8B Nh6 b7 Nf5 b8R Rg8 Nc3 b1N Qb3 Kh5 e6 d1Q Rh2 g5 Nb5 g4 Be3 g3 Rb7 Qe2 Ba7 d4 Nf3 g1Q Bg2 Nd2 Bh1 g2 Nd6 Qb1 Ra2 g1B Rf2 Bh2 Rb2 Bg3 Rf1 Be1 Qb5 B7h4 e7 Rg1 e8R Qde7 Qb6 Be6 c8B Bc4 Bd7 Q7e5 Qd8 Bd3 Qb8 Nb4+ Kc7 Bf6 Rc8 Ne7 Kd8 Bfh4 Ke8 Nf5+ Be6 Be7 Bd7 Rg4 Rg1 Rf4 Rg6 Rg4 Rf6 Rg1 Bb6 Ra5 Ba7 Rd5 Qc7 Rc5 Ra8 Rc2 Qb8 Qg2 Qc7 Ne4 Bc8 Re2 Qb8 Nd2 Bd7 Qf1 Rb5 Rf2 Rb7 Qfe2
1q2R3/B2P1br1/RN1B3r/1KpqR1b1/4n1Bk/1qRb3p/4Bp1Q/nN2n3 w - - 0 1 illegal: No possible last move
N3r3/k2pp1r1/Bnb1N3/1Kn2R1p/1RR1P3/3b4/Br1q1B2/1R1qqBQn w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Qd3 Bh6 Qd2 fxg4 Qd1 g3 Bd2 g4 Bc1 Bg5 hxg5 Kf8 Nd2 Kf7 Nb1 Ke8 Kd2 b5 Kd3 h5 a4 b3 e4 g2 f4 b2 c4 g3 a5 b4 g6 b3 c5 Rh7 Kc4 d3 c6 d2 a6 Rh8 a7 Rh7 c7 Na6 f5 Rg7 f6 Nc5 Nf3 g1Q Ra4 g2 Rb4 Bb7 c8B Qa5 f7+ Kd8 f8R+ Kc7 Rf5 Bc6 Na3 b1R Nd4 b2 Ba6 Nf6 Nab5+ Kb6 Ne6 Re8 a8R Nd5 Rc8 Qh2 Qg4 g1N Nbc7+ Ka7 Na8 d1Q Be3 Nh3 Qg1 Qhd2 Bf2 Q2e1 Rb3 Qad2 Rb4 Bb7 Kb5 Nb6 Bg3 Nf2 Bh4 Rf7 g7 Bd5 g8B Rg7 Nd8 Bb7 Ba2 Bd5 Ne6 Bb7 Rh3 Nh1 Bf2 Bd5 Rc3 Bb7 Rb8 Bc6+ Ka5 Rc1 Rcc4 b1B Bb7 Bd3 Ba6 Rc3 Rb1 Nd5 R8b4 Nb6 Bb5 Rb3 Ba6 Bd5 Kb5 Rb2 Ka5 Bb7 Kb5 Bc6+
2RNnbK1/nP2N1q1/Rrb2B1p/1R1p1qb1/2Q1p3/5r1q/2B1BR2/1B4kn w - - 0 1 illegal: No possible last move, all moves rejected
K1NR3q/1pBQ1N2/1pP1p1rn/2r1Rb2/N2b1qrN/2Bn1B2/6Bb/3q2k1 w - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 g5 hxg5 c5 b4 cxd4 b5 Bh6 b6 axb6 Rh5 Bg7 Rh1 Bf8 Kd2 Kf7 g4 Ke6 c4 Ke5 a4 Kf4 g6 h5 a5 d5 c5 h4 g7 d3 Kc3+ d2 Kd4 e3 g5 e2 g6 e1B c6 h3 a6 h2 a7 Qd7 Nc3 Rh4 Na4 Rg4 Bg2 Qd8 Nf3 Nh6 g8B Bf5 g7 Be6 Bb2 Rg3 Bc3 Nd7 Nh4 Rb8 a8N Nf6 Nc7 Nh5 Nb5 Bf5 Na7 Qc7 Nc8 Rg6 f3 Kg3 f4 Kf2 Be6 Bc2 f5 Nf4 g8N Bg7+ f6 Nd3 Bg4 e6 B4f3 Bh8 Rg1 h1Q Rb1 Qh3 Rb5 Ra8 Rh1 Ra5 Rh2 Kg1 Rc5 Ne5 f7 Bf5 f8B Nd3+ Bg7 Qb8 Be5 Qg3 Rh3 Qh2 Rg3 Qc7 Rg4 Qg7 Re4 Qf4 Rc4 Rc5 Rb4 Ng4 Nh6 Qg8 Nf7 Nh6 Rb5 Bg7 Ra5 Qh8 Ra8 Bf6 Qc2 d1R Qd2 Bg3 Rb8 Bg7 Ra8 Rf6 Bc7 Bh2 Rb8 Qd6 Re5 Rg6 Qg5 Qdf8 Qd8 Rb1 Qd7 Rb4+ Ke3 Rbg4 Ra8 Be4 Kd4 Qd6 Ne7 Bf6 Rd8 Bg7 Nc8 Qdf8 Nfd6 Qf4 Nf7 Bf5+ Be4 Qd2 Bb8 Bf4 Bef3 Rf6 Re3 Rfg6+ Be5 Nf2+ Rd3 Qc1 Re3 Bh2+ Re4 Rf6 Bf4 Qd2+ Ke5 d4+ Kd6 d3 Kc7 Rfg6 Kb8 Bd4 Bc7 Qf4 Ka7 d2 Ka8 d1Q Re5 Nd3
BN4n1/n3N3/PBp3R1/NR1Q3p/1p1r1r1b/4B1nK/rn1Nb3/3qkn1B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 e4 Kd6 d4 f5 a4 b5 g4 h5 Kg2 f3+ Kh3 b3 a5 b2 e5+ Ke7 g5 b4 e6 Kd6 e7 f2 e8B Ra7 g6 Nc6 g7 Be7 Be3 Ba6 Nd2 b1N Ngf3 f4 Nb3 Nd2 Rg1 Be2 Bg2 f1R Bh1 Nc4 Nfd2 f3 Rg6+ Bf6 Rc1 Nb2 Rc5 f2 Rb5 Ra6 Bd7 Na7 Bc6 Rh6 Ba8 c6 Nc5 Rh8 Nd7 Rh7 Nb8 Qd7+ Kg2 h3+ Kg3 h2 Qb3 Qd8 Kh3 Rd1 Qd3 f1N Qe4 Nh6 g8N Rf7 Ne7 Ng8 Qd3 Kc7 Qe4 Bh4 Qf5 Qd7 Qe6 Rf4 d6+ Kd8 d5 Ke8 Nb3 Rdd4 Nd2 Qd8 d7+ Kf8 Be4 h1N d6 Nhg3 Qe5 Kf7 Bh1 Qc7 d8B Qd7+ Kg2 Qg4 d7 Qf3+ Kh3 Qd5 Rg5 Qf3 Qc5 Ke6 Bb6 Qd5 Rg6+ Ke5 Nf3+ Ke4 d8N Kd3 Nd2 Qb3 Qd5 Kc2 Nb7 Kd1 Bd8 Ke1 Bc7 Rb6 a6 Qd1 Na5 Rb7 Bb6 Rd7 Qf7 R7d5 Qf5 Rc5 Qe4 Rc3 Qe5 Ra3 Qd5 Ra2
nRbR1n2/B2Nb1Rr/B1Kb3r/1Q1P1BRr/1n5p/1p5q/p2n3k/N3B3 w - - 0 1 illegal: No proof kernel
1Rr2q2/nP2b1Rn/1R5R/3k3n/N2B1Kbr/4p1pr/Nb1p1N2/1BQN3b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Ke6 f4 d5 h4 a5 b4 g5 b6 g3 b5 e3 Kf3 a4 h5 g2 h6 d3 h7 d2 b7 e2 c5 e1R b6 a3 f5+ Ke5 c6 d4 f6 a2 f7 d3 c7 Kd5 Nh3 e5 Rg1 Be7 f8R Nc6 b8N Bb7 c8N Re4 Bb2 Na7 Nc6 Nf6 Bd4 Rh4 Qc1 d1B+ Be2 d2 Nf2 g4+ Ke3 e4 Bd3 Bf3 Kf4 e3 Nc3+ Ke6 Rb1 a1B Bc2 Bb2 Ncd1 Kd5 Rg8 Qf8 Nb4+ Ke6 Na2 Kd5 Rh1 g1N Rg7 Rh3 Bg6 g3 Bf5 Bc6 b7 Bg4 Bg6 Nf3 Nb6+ Kd6 Rh2 Rc8 Na4 Ng5 Bf5 Bh1 Be4 Rg8 h8R Ngh7 Bf5 Kd5 Bd3 Ba1 Rb6 Bb2 Bb1 Rh4 Rf7 Rg5 Rg7 Rgh5 Rhg8 Qf7 Re8 Qf8 Rh3 Rc2 Ra8 Rc8 Rh2 Rh3 Rb8 R5h4 Bc5 Rh6 Rg6 R3h5 Rh4 Be6 Rhg4 Rh3 Bd4 R6h4 Rg7 Rh6 R4g6 Bg4 Bd3 R6h5 Rh6 R5h4 Bb1 Nh5+
5rNR/1N4bR/qN2n3/8/nbPk2r1/2Rbqp2/1pbBB1pN/3QRKb1 w - - 0 1 illegal: No possible last move, all moves rejected
2r3B1/p1NrR3/2r2n1K/2BN1qP1/r1QR3p/bb1q4/2pr2R1/Bk1n1BR1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 b4 Kd5 g4 Kd4 e4 h5 d3 f5 e5 c5 b6 h3 b7 c3 e6 h2 g5 c4 e7 c2 e8B h4 b5 c3 b6 Nf6 Qe2 Ne4 Ba3 c1R Bf7 Nd7 b8B Rh7 b7 Nf2 Bg8 Nd1 Ra2 Nf6 Nh3 Rd7 Rg1 h1R Rd2 c2 Nc3 Ra1 Nd5 Rh2 Nc7 Kc3 Bc5 Kb2 d4 Kb1 d5 Ra4 Qc4 Rg2 Rd4 Rd2 d6 Be7 Nf2 Qf8 Ng4 Qf7 Ne3 Qd5+ Re4 Qd3 Rd4 Bf8 Nb5 Be7 Bc7 Bf8 b8R Ba6 Rd8 Rc8 Re8 Bb7+ Ree4 Bd5 Ba5 Bf7 Bc3 Rc6 Nc7 Be7 Qa6 Bb3 Ba1 Bf8 Qc4 Be7 Be2 Bf8 Kg2 f3+ Kh3 f2 Re7 f4 Bf1 f3 Ned5 Rd8 d7 Rc8 d8R Qf5+ Rdg4 Qd3 Be2 f1R R4g2 Re1 Bf1 f2+ Ne3 Ree2 Rd4 Qf5+ Rdg4 Rd7 Ned5 Qh7 Rd4 Rd2 Be2 f1Q Bd3 Ne8 Kg4 Qhf5+ Kh5 Qe2+ Rgg4 Qee4 R4g2 Qe3 Bf1 Qed3 Ree2 Bd6 Kh6 Nf6 Ree4 Qfh3 Re7 Qhf5 Bb6 Bb4 Bc5 Ba3
n3qQ2/2R1bN2/2q1n1K1/R1R5/np2pr2/BB4P1/1q1Npqk1/1bN1RN1r w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 e5+ Ke3 b5 f4 c5 a4 h5 d4 b3 a5 b2 f5 c4 f6 b4 a6 c3 g3 h3 a7 h4 f7 h2 Bh3 c2 Bd2 c1Q Qf3 Bf5 Ne2 Nc6 Ra5 Qe8 Re1 Be7 f8R h1Q Rf7 Qh2 Bg4 Rd8 a8N h3 Nc7 Nf6 Rc5 Bh7 Be6 Nd7 Qf2 Qc2 Bc1 Nb6 Nd2 b1N Ba3 Qb2 Nc1 Nc3 Rg7 Qg2 Qf8 h2 Bg8 h1Q Ra5 Kd7 d6 Na8 Bb3 Na4 Nd5 Ke6 d7 Rc8 Rf7 Nd8 Rf5 Kd6 Rh5 Ne6 d8R+ Kc6 Rd7 Bg6 Rb7 Kd6 Rba7 Rc4 Rc7 Qgh2 Nb6 Q2g2 d5 Qhf1 Rf5 Rh1 Rg5 Rd4 Rf5 Qfb5 Nf1 Qec6 Nc4+ Kc5 d6 Kd5 Rg5 Qe8 Ra6 Qbc6 d7 Qgc2 Ncd2+ Rc4 Kf2 e3+ Kf3 e2 d8N Qf5+ Ke3 Qf6 Rh5 Bb1 Rf5 Qff7 Kf3 Kd4+ Kg4 Qf6 Ra5 Qff7 Rg5 Qf2 Nf3+ Ke4 Nf7 Rg1 Kh5 Rh1+ Kg6 Rd4 N1h2 Ke3+ Rf5 Rf4 Nd2 e4 Rfe5 Qg2 Rf5 Kf2 Nhf1 Qg1 Rg5 Kg2 Rgc5 Qf2
1Rb1b2r/2q5/1R1nNBBQ/k1bb2Kp/nR2P1rR/5rN1/p1p3B1/2B1q3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 g4 a5 b4 f5 d4 c5 e3 Kc7 g5 Kb6 d5 a4 g6 a3 g7 a2 d6 c3 d7 h3 Bc4 c2 Be6 h2 Nd2 c4 Nb3 c3 Bf7 Qc7 d8B Ne7 g8B Ra4 Rb1 Na6 Qd2 Nc5 Ne2 Ra3 Be8 Na4 Nc5 Rb3 Ng3 Ra3 Bb2 c1Q Ne6 c2 Bg6 Qe1 Bc1 Rc3 B8f7 Rd3 Be8 Rc3 Bc6 Ra3 Kg2 f3+ Kh3 f4 Kh4 f2 Bg2 f1R Kg5 Nf5 Bf6 f3 Rb3 f2 Rb2 Ka7 b6+ Ka6 b7 Bc5 b8R Nd6 Rb1 Rc3 b5+ Ka5 Rb4 Rc4 b6 Rf4 Rg1 h1B b7 Ne8 Qd6 Rf3 Qf8 Nd6 Qh6 Rf4 Bh3 Bd5 Rh1 Rg1 e4 f1B Bg2 Bb5 Rh3 Rgf1 Rh4 R1f3 Ra8+ Ba7 b8R Bbc6 R8b7 Be8 Rab8 Bc5 R7b6 Rg4+
b2r4/2rk2n1/1q1NR1Bp/qn2p2r/B1BbK2p/n1NP3R/1n2Q3/1N2B1N1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 c5 Ke3 b5 f4 e5 g4 c4 a4 h6 a5 b3 f5 b2 a6 b4 d6 c3 a7 c2 g5 b3 f6 Bb7 f7+ Kd7 g6 Qa5 g7 Nc6 Bb5 Nf6 g8B Rd8 a8B Nh5 Qe2 Ng7 Ba4 Be7 Bh7 Rhg8 Rh3 Bf8 Bg6 Be7 Kf2 e3+ Kf3 Bg5 Ke4 Rgf8 Nc3 b1N Ra2 Na3 Nb1 b2 d3 Nc4 Bd2 c1R Ra1 Qb6 Be1 Bf4 Ra3 Bg3 Rb3 Bf2 Rb5 Nd4+ Rd5+ Ke6 d7 Bc6 Bb7 Nb5 Ba6 Rg8 f8N+ Ke7 Qd1 e2 Nh7 Bd4 Ng5 Ba8 Qc2 Rgf8 Qd2 Rf5 Qe3 Rh8 d8N Rc3 Ndf7 Rd8 Nd6 Kd7 Ngf7 Rh5 Ng5 Kc6 Rc5+ Kd7+ Rc6 Rc1 Ba5 e1Q Qe2 Qc3 Bb4 Qa3 Be1 Qc3 Kd5 Rc2 Nge4 Qca5 Nec3 Rc1 Nd2 b1N Ke4 N1a3 Ndb1 Nc7 B6b5 Nb2 Bc4 Ncb5 Bg3 Rf1 Be1 Rff8 Nb7 Rc8 Re6 Rc6 Nd6 Rd8 Bcb3 Rc5+ Bd5 Rc6 Bc4 Rc7+
bRN1B1nN/N2r1Q1q/1N5p/p4Rn1/q1Rbn1P1/Br4p1/k7/n1KRr3 w - - 0 1 illegal: No proof kernel
1nKnB3/Br6/k1NRp2Q/3RR1b1/b4Bq1/4N1R1/n1p1P1p1/br3qnB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 c4 gxf4 axb5 d5 g5 dxc4 Qb3 Qd5 Qh3 Qd8 Qg4 hxg4 Kf2 Kd7 d4 a5 b4 f5 h4 c5 h5 Kc7 b6+ Kb7 b5 f3 Kg3 f2 Kf4 a4 Ke5 c3 d5 e6 g6 c4 g7 c2 h6 g3 h7 c3 d6 f4 d7 a3 Rh5 f3 Nd2 a2 Nc4 Bb4 Bf4 c1N Ne3 c2 Bg2 f1Q Bh1 Bc3+ Kd6 g2 Rd5 f2 Nf3 Qf6 d8R Bd2 Ne5 Qf7 Nc6 Nh6 g8B Qh5 Bf7 Qg4 Be8 Nf7+ Ke7 Ra7 R8d6 Rg8 h8Q Nd8 Qh6 Bd7 Rb1 a1B Rb3 Na2 Rbd3 Kc8 b7+ Kc7 Re5 Kb6 R3d5 Rf8 Nb4+ Ka5 b6+ Bb5 Nc6+ Ka6 Qg5 Ba4 Qh6 Nd7 b8B Rb7 Ba7 Nb8+ Rd7 Qc1 Kd6 f1N Rg7 Nh2 Rd7 Rc7 b7 Nf3 Rg7 Ng1 Rg8 Nd7 b8R Rb7 Ra8 Rb1 Kc7 Nb8 Kc8 Qf1 Rg7 Rh8 Rgd7 Rh7 R7d6 Nd7 Rb8 Re7 Rb3 Nb8 Nd1 Rb7 Rg3 Bdc3 Ne3 Bd4 Rf5 Bf6 Rfe5 Bg5
k4N2/2b1KnNq/b1p1r2R/Rn3P2/1r1pBpN1/6R1/N2n2bR/Bn4qQ w - - 0 1 illegal: No proof kernel
R4Rr1/K1rNb1Pb/1p3nbk/1qB2R2/8/B1n2qRN/BBpp4/2nb1Q2 w - - 0 1 illegal: No proof kernel
2r2N2/5pQb/2nq1q2/pB1n1B1R/4p2r/BBq3b1/NP1q3R/rkN2K1N w - - 0 1 illegal: No proof kernel
1R2Rq1B/K1N1PrB1/p3pR1r/3p2b1/1Bk5/Rnq2Q1N/2br2r1/1B1q3n w - - 0 1 illegal: No proof kernel
Q5Rn/qp2k1b1/1p1q2B1/1NBRpb1b/1P3rN1/1Kr1nB2/R6q/RBb5 w - - 0 1 legal: proof: e4 f5 h4 fxe4 d4 g5 hxg5 c5 Qd2 cxd4 Qa5 Bg7 Qc7 Bf8 Qb6 axb6 Kd1 e5 f4 d5 g4 h5 a4 h4 c4 h3 Kc2 h2 b4 d3+ Kb3 d2 g6 e3 c5 e2 a5 e1B g5 d4 a6 d3 g7 Bf5 g6 Qd7 a7 Bh4 c6 Bfe7 c7 Beg5 c8B Nh6 g8R+ Ke7 g7 Qd8 Be2 Qe8 Na3 Nf7 Nf3 Nd7 Rd1 h1Q Nh2 Nf6 Bf3 Ng4 Nb5 Ne3 Ng4 Qh2 Be6 Rc8 a8R Rh5 R8a2 Nh8 Bf7 Rh7 Bg6 Rc3+ Ka4 Qb8 Bb2 Rc7 Kb3 Qa7 Bc3 Bf6 Bd4 Bhg5 Bc5+ Kd7 Rc8 Rh4 g8B Bg7 B8h7 B5h6 Rg8 Rc8 Rdc1 d1B+ Rcc2 d2 Ra5 Be4 f5 Rc7 f6 Bf5 f7 Bf4 Bd4 Ke7 R5a2 Be2 Rc5 Rc6 Rd5 d1Q+ Kb2 Rc3 f8Q+ Ke6 Qb8 Ke7 Qa8 Bg5 Nf6 Rf4 Ng4 Qb8 Bc5+ Qd6 Be8 Qa4 Bhg6 Qa7 Bc6 Rc1 Kb3 Rc2 Be4 Rc4 Bb1 Rc2 Nf6 Bh5 Ng4 Rc1 Rd4 Rc4 Bf3 Rc2 Rd2 Rc3+ Kb2 Nd5 Bc2 Re4 Rd4 Bd2 Bb1 Ne3 Rd3 Rf4 Rd5 Rc2+ Kb3 Bc1 Bh7 Rcc4 Bg6 Rc3+
1RNN4/p1B3Pr/pr2p2k/1B6/K2q4/nb2nqNq/BQ1N4/R3brqB w - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 g5 hxg5 c5 a4 cxd4 a5 Bg7 a6 bxa6 Kd2 Bh6 Ke1 Bf8 Kd2 Kf7 c4 Kg7 Kc2 d5 Kb3 h5 g4 h4 f4 h3 g6 h2 g5 d3 f5 d4 c5 d2 c6 d3 c7 e3 Ka4 e2 b4 e1R b5 Bb7 c8B Nf6 b6 Re3 Qb3 d1Q Ne2 d2 Ng3 Be4 b7 Bd5 Bb5 Nbd7 b8N Rf3 Bb7 Rf1 Nc6 Qf3 Qb2 Ne5 Rg1 Qd7 Nd8 h1Q B7c6 Nfg4 f6+ Kg8 f7+ Kg7 Rg2 d1Q+ Rc2 Qe1 Bf4 Bc4 Nd2 Rb8 Rc3 Qh5 Rb3 Qh3 Be4 Rb6 Bec6 Qfd1 Bh1 Qf3 Rb4 Qd4 Rb3 Nc6 Bc7 Na5 Rb4 Rh5 Rb3 Ne3 Rb4 Kh8 g7+ Kh7 g6+ Kh6 g8B Qef2 g7 Qg1 Bh7 e6 Bb1 Bd6 f8N Rh4 Rb3 Bb4 Nd7 Bc3 Ba2 Bb4 Nde4 Be1 Rb4 Nc6 Rb3 Nb4 Nd2 Nbc2 Rb4 Na3 Rb3 Rb8 Nb6 Rb7 Nc8 Rb6 Nb7 Kg6 Nd8 Rh7 Bd7 Kh6 Rb5 Rd6 Rb8 Rb6 Bb5 Bb3+
1R4rk/1Bb4r/1R1R1np1/B1bNq3/p2Bn1b1/N1np3n/3bP3/BQ2K1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 c4 d5 h4 a5 b4 f5 e6 g3 e7 Kf7 e8R g2 b5 f4 h5 a3 b6 d3 b7 d2+ Kf2 f3 c5 a2 h6 g6 c6 d4 c7 a4 h7 Kg7 Qb3 d1N+ Ke1 d3 Rh3 Nc6 b8B Qg5 Re3 Nce7 Bb2+ Nf6 Na3 Nc3 Rh1 Ned5 Nh3 g1B Nf4 Bg4 c8R Qe5 Bg2 Bc5 Bc7 Bh2 Rb1 a1B Rb8 Rg8 Qb7 Ra7 Rg1 Kh8 Qb3 Rb7 Ba5 Re7 Re4 Rg7 Rd4 f2+ Kd2 f1N+ Ke1 Ng3 Bh1 Nc7 Bb7 Ne6 Rd6 Nge4 Nd5 N6g5 Qc2 Nh3 Qd1 Na2 Bd4 Nac3 Rbb6 Bb2 Qb1 Bc1 Ra6 Qe8 Rdb6 Bc7 Rd6 Qe5 Rac6 Rf7 Rb6 Kg7 h8B+ Kh7 Bg7 Re7 Bh6 Kh8 Bg5 Rh7 Bd2 Nd1 B2c3 Be3 Bb2 Ndc3 Ba1 Bd2+
1b3nb1/1rBPrB1R/1Nk1p3/2b2BnB/1n2p3/3Q3p/R2RN1R1/n2Kq2b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 f4 c5 g4 h5 a4 b5 g5 b3 d6 b2 g6 h3 f5 b4 d5 h4 g7 c4 a5 b3 a6 h2 f6 c3 f7 h3 a7 c2 Be2 Rh7 Ra4 Nh6 g8B Qa5+ Bd2 c1B Nc3 b1N Bh5 b2 Ra2 Na3 Bf4 b1N Ne2 Nd2 Rg1 h1B Rg2 Nb3 Qd3 Na1 Kd1 N3c2 Na4 Nb4 Bh2 Rg7 Bh7 Bf4 Bg3 Ba6 B7g6 Bc4 Nb6+ Kd8 d7 Kc7 d8R Nd7 d6+ Kc6 Bh7 Rb8 a8B+ Rb7 Bh2 Be3 Bf5 Bc5 Bg3 Rh7 Be5 Bg7 f8R Nf7 Bh2 Ng5 Rh8 Be5 Bg3 Rf7 Rh7 Nf8 d7 Na6 Nc1 Kb5 Rac2 Ra7 Bd5 Rb7 Ra8 Bb8 Bde6 Kc6 Ne2 Qc3 Bc7 Nb4 Raa2 Rg7 Bfg6 Bd5 Bef5 Bg8 Rcb2 e6 Be8 Re7 Bef7 Qd4 Rc2 Qf2 Rd2 Qe1+
RQ1bB3/nR1p4/q1p2n1q/qN1PR3/2p1B2n/Bn6/knB2KN1/1Rr4r w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b6 b5 Ba6 c5 bxc5 b6 Bb5 axb5 c4 d4 Ke7 e4 Kd6 g4 a5 b7 f5 b6 h5 g5 a4 g6 a3 g7 h3 d5 Kc5 e5 Kb4 e6 f3 e7 h4 e8B a2 Nc3 f4 Nce2 f2+ Kd2 f3 Ke3 h2 Qc2 h3 Nd4 Nf6 g8B Be7 Qg6 Nc6 Nde2 Kb3 Bg2 f1N+ Kf2 Ne3 b8R Nf5 Kf1 f2 b7 Ra4 Bb2 Na7 Rb1 a1N Bh7 c6 Nf4 Rb4 Ke2 f1N Qg3+ Ka2 Kf2 N1e3 Re1 Qc8 Ba3 Nd1+ Kf1 Bd8 Ra8 Rb1 b8R Nb3 Nf3 Nb2 Nd4 Qa6 Rb7 Rd1 Rg1 h1Q Nb5 Qh2 Bf3 Qd2 Ng2 h2 Qb8 Qda5 Kf2 h1Q Re5 Qh2 Rf1 Qf4 Bhg6 Rh1 Bh7 Nh4 Bc2 Qh6 Bfe4 Rd3 Rc1 Rdd1 Rb1 Rc1
2N1RKN1/1b6/2B1NR2/q3BqNp/3bb2q/1Brpkbn1/B2p2bP/3n3Q w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 b5 Qd3 f5 Qd2 Ra6 Qd1 Rf6 Nd2 exf4 Nb1 f3 Nd2 f4 Nb1 Rf5 gxf5 Be7 Nc3 Bc5 Nb1 Bf8 Kf2 Ke7 c4 Kf6 e4 Ke5 a4 d5 c5 g5 f6 h5 a5 d3 a6 Kd4 c6 b3 f7 b2 a7 b4 a8B g4 e5 d2 c7 b3 e6 Nd7 e7 Ne5 e8B Bg7 f8N Ne7 Ra2 Nf5 Nd7 Nc4 Nf6 Ng3 Na3 b1B Qe2 b2 Nh3 Ne3 Bf7 Be4 Bc6 b1B Qd1 Bb7 c8N Qa5 Bc4 Bbd3 Rb2 Be2 Bb3 Kd3 Rf1 d4 Ng5 Rf8 Na7 Rc8 N3b5 Bh8 Qe1 Bg7 Ng8 Nd1+ Kg1 Ke3 Nc7 d3 Nce6 Rc7 Nc8 Bd4 Ra2 Qc5 Bb2 Qa5 Bcd5 Rc3 Bc6 Bf5 Ra4 f2+ Kg2 Be4+ Nf3 Qd5 Ra8 Qa5 Rb8 Nh1 Ba2 g3 Kh3 g2 Kh4 g1Q Nfg5 f3 Nce7 Rc1 Nc5 Qg2 Nh3 Qg6 Re8 Be5 Nc8 Ng3 Bfb3 Qh7 Kg5 Qe7+ Kh6 Qh4 Ng5 Bh8 Be5 Rc3 Nce6 Bf6 Bd6 Bd4 Rh1 f1Q Be5 f2 Kg7 Qfh3 Kf8 f1B Rg1 Bfg2 Rf1 Q3g4 Rf6 Qf5 Qh1 Be2f3
6Rn/B7/np3N1r/4N1n1/K1pRb2B/1Pp1q1N1/1B1nB1rn/1Qnn1Nk1 w - - 0 1 illegal: No extended proof kernel
rNRQ4/5Rq1/n2Np1q1/8/2b3p1/rNBrpRNR/3rPrk1/1BKnr3 w - - 0 1 illegal: No proof kernel
Kb1B1Nn1/R1B2p1B/Nqk1p3/2rr4/1brp2N1/4P1b1/Nr1bb2B/4R1Q1 w - - 0 1 legal: proof: f4 b5 g4 c5 a4 bxa4 d4 cxd4 f5 h5 f6 hxg4 Nc3 e6 Bh3 Nc6 Nb1 Nce7 Kf2 Qc7 Bf1 Kd8 Ke1 Qa5+ Nc3 Kc7 fxe7 Qb6 Nb1 Kc6 Be3 Qc7 Bc1 Qd8 b3 d3 Kf2 d5 Ke3 a5 Kd4 g5 e8N a3 h4 g3 c4 g4 h5 a2 c5 g2 h6 d2 h7 g3 b4 a4 b5+ Kd7 b6 a3 c6+ Ke7 Kc5 d4 b7 Rb8 c7 Kd7+ Kb6 Bg7 Ka7 Bh6 Nf3 g1B Nh2 g2 Ng4 Bf2 Nc3 g1B e3 Bf8 Bd3 Kc6 Qf1 d1R Bd2 Bh2 Qg2+ Kd7 Re1 Rc1 Qg1 Kc6 Bb1 Bhd6 Bf5 Bfg3 Bb1 Kc5 Bd3 Bd7 c8N Bb5 Nb6 Kc6 Nc7 Bc4 Bc2 Be2 Nd7 Bfe7 Nf8 Bde5 Rb1 a1R Bd3 Ra2 Ra1 Rac2 Bg6 a2 Bf5 Nh6 Bd3 Rg8 h8B Rg5 Bf6 Ng8 Bg6 B5d6 Bh7 Rd5 Be5 Bgh4 Bh2 Bhg3 Nd1 Rb2 Ba5 Rc4 Nc3 Bde5 Bb6 Bb4 Ba5 Rc8 b8B Kc5 Ka8 Bef4 N7b5 Qd6 Bd8 Qb6 Nc7 Be5 N7b5 Rc6 Nc7 Kd6 Rab1 R6c5 Rbd1 Kc6 Rd3 a1B Na2 Rd2 Ra3 Bac3 Ra7 Rb2 Na6 Bd2 Bd6 Bf6 Bb8 Be7 Be5 Bd6 Bf4 Bb8 Be5 Bc1 Bec7 Bcd2
1nRr1n2/1q5r/p5BR/K1p2Q1b/PN3p2/n1B1rk2/p1b3b1/RN2RN1N w - - 0 1 illegal: No proof kernel
B1r2B2/1B2n2q/4q2P/N5pR/KpbQ3R/p1N1r1kp/1n2nbB1/4R1rR w - - 0 1 illegal: No proof kernel
r4QK1/kB1q4/rq3p2/1B1R1b2/1bn1n3/2B1Np1p/PBR2pN1/1R1rR2q w - - 0 1 illegal: No proof kernel
4nNr1/b1pKR2Q/B3R3/R2b1n1p/b1pp3R/2Nq2kr/3nP3/1BB2Bb1 w - - 0 1 illegal: No proof kernel
R1b4k/pRR2QNp/1n3p2/1K1Bb1nB/2RnNrp1/4P1B1/2qB1n2/2b2r2 w - - 0 1 illegal: No proof kernel
1k1n1Bn1/r2Rb3/Q6r/1P3pK1/ppN2N1R/p1N2B1R/N5Rq/1bq1b2b w - - 0 1 illegal: No proof kernel
3N2NB/RR4p1/N1R1BQ2/2nrpb2/NqpqR1p1/2P5/K1k1r1r1/r1b3n1 w - - 0 1 legal: proof: e4 b5 g4 f5 a4 fxg4 axb5 h5 b3 d5 Ba3 dxe4 Bd6 h4 Bg3 hxg3 h4 Kf7 f4 Ke6 d4 Kf5 Kd2 a5 Kc3 c5 Kb2 e5 b4 a4 h5 g2 d5 e3 d6 Ke4 d7 e2 h6 e1R h7 Qf6 d8N Qg6 b6 Ne7 b5 Ra5 f5 Qh6 f6 Be6 f7 Bc8 b7 Qd2 b6 Qe3 Nf3 g1R Bc4 Nd5 Nd4 Nf4 N4c6 Qd2 Ne7 Nd7 b8N Nh3 b7 Rg2 Ng8 Ree2 Qf1 a3+ Kb3 a2 Nc3+ Kd4 Qf3 Be7 Rhc1 Bg5 f8R Bh6 Rf7 Be3 Rab1 a1Q Na6 Bh6 b8R Qe1 Qf1 Ke3 Rb2 Kd2 Na4 Be3 Nh6 Rf8 h8B Ng1 Re7 Rf6 Rb5 Rb6 Rb4 Rab5 Bd5 Rd6 Bf7 Rd5 Ng8 Bf4 Rbb1 Qc3+ Ka2 Qd3 R4b3 Qd4 Re3 Rb7 Rb6 c4 c3 Nc5 Rcb1 Kc2 Re4 Bh6 Qf6 Bf5 R1b3 Be3 Be6 Qb1+ Ka3 Bh6 Rc6 Rb8 Rbb6 Qb5 Ka2 Bc1 Ra7 Qa5 Rb3 Rb7 Ra3 Rb1 Rb3 Qb6 Rb4 Qa5 Rbb6 Qb4 Rbb7 Ra1+
B1R4b/p3Bq1r/NNR1npr1/p2B2b1/2Q2q2/P1Rb2n1/1p1k2KB/4b2R w - - 0 1 illegal: No proof kernel
1k1B4/3r2R1/nbp1qrR1/1R2ppK1/4RP2/1Npn2qB/1B2r2B/2Q1qN1n w - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 e4 a5 h4 axb4 d5 Be6 d6 Bd5 exd5 gxh4 Kd2 Kd7 Ke3 Kc8 Kf4 h5 a4 b5 g4 f5 g5 e5+ Kf3 c6 a5 b3 g6 b2 g7 b4 a6 h3 a7 h2 Ne2 b3 Bh3 h4 Nd4 c3 Nd2 b1R Bb2 Qe8 Nf1 Nf6 g8R Rh6 Rg6 Qe6 Ra4 Ng4 Qc1 Na6 Rg1 h1N d7+ Kb7 d8B Bc5 d6 Bb6 Bg5 Rd8 a8R Rd7 Ra7+ Kb8 Bf4 Ra1 Rg7 Ra2 Bh2 Rg6 Kg2 Rf6 f4 Ngf2 Kf3 Nd3 R1g6 Nab4 R7a5 Na6 Ba1 b2 Nb3 b1Q Bb2 Qc2 Re4 Qd2 Rb5 Qe1 Ba1 Re2 Bb2 Rb7 d7 Rc7 d8B Rd7 Bg4 h3 Bg1 h2 Bh3 Nhf2 Kg3 h1Q Kh4 Qg2 Bh2 Nh1+ Kh5 Qf3+ Kg5 Qfg3+
N1K2b2/1R2Bq1p/b5p1/1pR1Nrq1/1N1B2n1/4prNP/B2k4/1b2rqQB w - - 0 1 legal: proof: d4 f5 b4 a5 e4 axb4 g4 fxe4 f4 Nc6 f5 Ne5 d5 Ng6 d6 Nh4 f6 Nf5 gxf5 cxd6 Bb5 d5 Bf1 d4 Kd2 Kf7 a4 b5 c4 e5 c5 d5 c6 b3 c7 g6 a5 b2 h3 d3 Kc3 d2 a6 e3 a7 e4 Kd4 e2 Ke5 e1R Ne2 e3 Na3 b1B Bg2 d4 Ng3 d3 Bb2 Bc5 Nc2 Qd7 Nb4 Bb6 Bd4 Qe8+ Kd6 Ba6 c8B Bc5+ Kc7 Nh6 Ra2 Rb8 a8N Bf8 Rf1 Rb6 Bh1 Ng4 Rc2 Rg8 Qc1 d1Q Rc5 d2 Bcb7 Qe5+ Kc8 Qb3 Rf2 d1Q Rd2 Ke8 f7+ Ke7 f6+ Ke6 Ra2 Qg5 Ra1 Bh6+ f8B Rd6 f7 Rd5 Ra2 Rf5 Rac2 Rg7 Be7 Qf3 Rc7 Qf1 R2c5 Rf3 Qb2 Qbd5 Qg2 Qdf5 Qg1 Rg8+ Bd8 Bf8 Be7 Qd5 Ne4 Kf5 Ng3+ Kf4 Rd7 Bg7+ f8N Qf7 Kd8 Rh8 Bd5 Bh6 Ba2 Rg8 Ne2+ Ke4 Rb7 Bg7 Kc7 Rh8 Nd7 Bf8 Kc8 Rg8 Nc2 Kd3 Nb4+ Kd2 Ng3 Rg7 Nb8 Qff4 Nd7 Rf7 Ne5 Rf5 Ba1 Q4c4 Bd4 Qf7
Nbbq2B1/8/N1kpN1p1/7R/rpb1p1Rq/2b3B1/rP3R1n/KQ1RNq2 w - - 0 1 illegal: No possible last move, all moves rejected
1q1B4/pNR1NrnN/1Q1Rb2n/1BRnp1pR/1p5q/5rqk/P1N5/4n2K w - - 0 1 legal: proof: g4 c5 e4 f5 b4 cxb4 h4 d5 h5 dxe4 h6 fxg4 Bb2 g6 Bc1 Bg7 hxg7 Bf5 Na3 Be6 Nb1 Bc8 d4 Kd7 c4 Ke6 f4 Kf5 Kf2 h5 Kg2 b5 d5 e5 d6 e3 c5 e2 d7 e1N+ Kh2 h4 c6 b3 c7 b2 Na3 b1N Nf3 b4 Qd6 h3 Qb6 Nc3 Bb5 Nc6 Nc2 Rh7 Ng5 Nh6 g8N Rf7 Nh7 g3+ Kg1 Kg4 f5 g2 f6 Nd5 Ne7 Qe8 d8N Nd4 Bg5 Ne6 Rd1 Ng7 Nb7 Be6 c8R Qf8 Rc7 Qb8 Be3 g5 Bf2 Ne3 Rd6 Nd5 Be3 Rf8 f7 h2+ Kf2 Kh3 Rc5 Rc8 f8R Rc7 Rc8 Rd7 R8c7 g1Q+ Ke2 Qg3 Kf1 Nf7 Rg1 h1Q Bd4 Qhh2 Rh1 Nh6 Bf2 Kg4 Bg1 Qhh4 Bf2 Qc3 Kg1 Qa3 Rh3 Qe3 Kh1 Qeg3 Nc8 Rf7 Ne7 Qg8 Bd4 Raf8 Be3 Rf3 Bf2 R8f7 Be3 Qf2 Rh2 Qhg3 Rh5 Qb8 Qa6 R3f5 R7c6 Rf3 Rc4+ R3f4 Bb6 Qd4 Bd8 Rf3 Rc7 Qe4 R4c5 Qef4 Qb6 Qh4+ Kg1 Kh3 Kh1 Qg3
B1kN3R/2r1p2R/2N4B/pp1pQn1n/3p1r1b/PK2r3/R3N3/q2RN1bq w - - 0 1 legal: proof: e4 f5 b4 fxe4 d4 c5 h4 cxd4 b5 a5 h5 b6 h6 Ba6 bxa6 gxh6 Qd2 h5 Qd1 h4 Kd2 h5 g4 b5 c4 d6 Kc2 Kd7 f4 h3 c5 h2 a3 e3 c6+ Kc7 f5 e2 g5 e1B a7 h4 g6 h3 g7 Rh6 f6 Rh7 f7 Qe8 Nf3 Qc8 Ra2 Rh4 Kb3 Nh6 g8R Nd7 Rg7 Nf6 Bg2 Nh5 Rh7 Nf5 Qe2 Qb7 Be3 Rc8 a8R Bh6 f8N Bg3 Bc1 Be3 Nc3 Be1 Rf1 h1R Rg1 B3f2 Bh6 h2 Qe5 Rf4 Rf1 Bh4 Rb8 Bef2 Ne6+ Kb6 Rb1 Re1 c7 Kc6 Rba1 Kd7 Bh1 Qc6 Rd1 Bg1 Bg2 Re3 Ne1 h1Q Be4 Qc5 Ba8 Ree4 Ne2 d5 Bg5 Rg8 c8N Qc1 Na7 Qa1 Bh6 Rc8 Nc6 Rc7 Rc8 Nfg3 Re8 Nf5 Ned8 Kc8 Reh8 Re3+
n1b4N/R3p3/1N1NppBr/1r2pP1r/3qK2Q/2p2n2/2kBbBNq/R1B5 w - - 0 1 illegal: No proof kernel
1B1bB1R1/p4K1p/nBb3N1/PRRQ3B/k1N4q/4p3/1pp1R1pr/4n1qq w - - 0 1 illegal: No proof kernel
2k3bQ/6K1/1nN1R2r/1p2nQ1q/Q1q1PR1r/1NQ3nN/3r1BQ1/3b4 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 a6 b4 Bf5 b5 axb5 Kf2 Be6 Ke1 Bc8 a4 c5 a5 c4 a6 Ba3 Bxa3 b4 a7 b5 Bc1 c3 Nxc3 b3 Nb1 Ba6 Bh3 Bb7 Bc8 Bxc8 Kf2 Kd7 Kf3 f5 h4 g5 d4 b2 h6 Qc7 d6 Qc3+ Be3 Qc7 d5 Nc6 h7 Nge7 h5 Bb7 h6 Rad8 a8Q Nc8 Bf2 Nb6 Nd2 b1Q Qda4 Qd1 Nb3 Bc8 Rh4 g4+ Kg2 f3+ Kg3 Bb7 Kf4 g3 Kg5 g2 Kf6 f4 Kg7 Ne5 Nh3 Qc4 e3 Qde2 Re1 g1R+ Rg4 Rh1 Qc8+ Ke8 Qf5 Bc8 Rh4 Be6 d7+ Ke7 Rg4 Bg8 Rh4 Kd6 Rg4 Kc7 d6+ Kb8 Rh4 Re8 d8N Re7+ Qf7 Kc8 Nc6 Re8 Qg6 Rd8 Qg2 Rh2 Bg1 f2 d7+ Kc7 Rg4 f1B Bf2 f3 Rf4 Qd1 Re2 Qdd5 Re1 Bd3 Re2 Bc2 Re1 Bd1 Re2 Ra8 d8Q+ Kb7 Qf8 Rd8 Qf7+ Kc8 Qh5 Rd6 Qf5+ Re6 Rd2 Qdc5 Rd6 Q5d5 e4 Qdc5 Be3 f2 Bd4 f1N Be3 Bf7 Bf2 Rd8 h8Q Bg8 h7 Ng3 Qf8 Rf6 Re6 Rh6 Qf6 Rd2 Qf5 Q5d5 Kf8 Nf3 Qc3 Ne5 h8Q Rh1 Kg7 Rh2 Ng5 R2h4 Nh3 Qdd3 Qh1 Qe2 Qg2 Qh5
R1Q2N1b/3R1rr1/Qq1q2n1/4n1NP/2bkrBN1/2nn4/6Nb/3RK2N w - - 0 1 illegal: No possible last move
1Q4q1/1Q1Kb2r/QnQ1PpN1/1Q4B1/1b1Rr3/1B1R1n2/1q2k3/2b1bRq1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 e5 axb5 exf4 h4 gxh4 b3 Bf5 Qc2 Bd7 Qd1 Bc8 e4 a5 b6 a4 Na3 Bd7 Nc2 a3 Ne3 Ba4 bxa4 fxe3 Ke2 Ke7 Kd3 Kd6 Kd4 h5 g4 c6 a5 f6 a6 h3 a7 e2 b7 e1B g5 h2 g6 h4 e5+ Kd7 d6 Ke6 Kc5 Kf5 d4 Ke4 d5 a2 e6 h3 g7 Rh4 Bc4 Nh6 g8Q Nf5 Nf3 Nd4 Qg2 Rh7 Rf1 h1Q Qb3 h2 Bg5 Be7 Qb5 Qg8 Nh4+ Nf3 Rd1 a1B Rd3 Bac3 Ng6 Bb4+ Kb6 c5 Kc7 Nd7 b8Q Nb6 d7 Qg1 d8Q h1Q d6 Qhh2 Bb3 c4 Qdc8 c3 Qca6 c2 Qab7+ Nd5+ Kd7 c1B Qc2 Qd2 Qcc6 Qa2 Q7a6 Qb2 Q8b7 Rb8 a8Q Rc8 Qcb6 Rc4 Q6c6 Bf4 Rd4+ Ke3 Qab8 Nb6+ Kc7 Ne5 d7 Ke2 d8R Bc1 Rd3 Re4 R8d4 Bf8+ Kd8 Nf3 Ke8 Nc4 Kd8 Bfe7+ Kd7 Nb6+
1N6/3bQ1P1/1k1r1rrR/nbNQ4/n1R1p2K/1QN4Q/1Qr4n/Bnr5 w - - 0 1 legal: proof: d4 b5 e4 c5 b4 cxd4 a4 f5 axb5 fxe4 b6 a6 b7 Qb6 b5 Qc7 b6 Qd8 h4 g5 g4 Nh6 f4 Qc7 f5 Qe5 Bd3 Ng8 Bb5 axb5 f6 Qf5 gxf5 g4 Ra7 Bh6 Ra1 Bg5 hxg5 Ra7 Ra5 Ra6 Ra1 Ra8 Kf2 Kd8 Kg3 e5 c4 d5 c5 h5 f7 h4+ Kf2 b4 f8N d3 f6 d2 c6 d4 f7 h3 Kg3 b3 g6 e3 g7 d3 Ra4 h2 Ra2 e2 Ra1 e1R Ra6 b2 Ra1 Bd7 Nc3 b1N Ra7 Nh6 Qc2 d1R Kh4 g3 Na4 d2 Bb2 g2 Ne2 g1R Qb3 Rg6 Ba1 e4 Ra5 Ra6 Nec3 Ng4+ Rh5 Rf1 Qd5 Rc1 Nc5 d1N Rh6 Nb2 Rg1 h1B c7+ Ke7 c8Q Nc6 b8Q Bf3 b7 Na4 Qg3 Nh2 b8Q Be2 Qb2 Rff6 Qf3 Rc2 Rc1 Bb5 Qh3 Rg8 Qb7 Kd8 Qdb3 Na5 Q7d5 Re2 Rc2 Kc7 Rc1 Rad6 Rc2 Bdc6 Nfd7 Rc8 Nb8 Bd7 f8Q Kb6 Qe7 Re1 Rd2 Rc1 Rd4 Rcc6 Rb4 Rf2 Rc4 Rfc2 Q2a2 Rdf6 Qab2 Rcd6
3bb3/b1P4k/R1nbQnN1/2nr2K1/1br2R2/4Q3/RR2Q2p/n1N2RB1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 a5 c3 a4 Bd3 Qa5 Bc2 d3 bxa5 dxc2 Ke2 Kf7 Kf3 Kg7 Kf4 e5+ Kg5 h5 f4 d5 g4 h3 b6 h4 a6 h2 b7 h3 a7 e4 c4 e3 c5 e2 c6 e1B c7 d4 f6+ Kh7 f5 a3 f7 d3 f6 a2 Nc3 d2 Nge2 Bd7 Nd5 Bd6 f8Q Nc6 b8R Be8 f7 Nf6 Rf1 h1N Rb2 h2 Ndf4 Ng3 Ng6 Rd8 a8R Rd7 Qe7 Nge4+ Kf5 Rg8 g5 Nc5 Ra6 Bf2 Qe1 d1N Be3 c1B f8R+ Rg7 Qc3 Bd2 Nc1 Rf7 Qc2 Bb4 Qe2 Rg7 Bd4 Rd8 Q7e5 Ne3+ Kf4 Nc2 Be3 Bh4 Bg1 Rf7 Kf5 Re7 Q5e3 Re4 Rf4 Rc4 Rf1 Nfe4 Kg4 Rd7 R8f4 Rd8 Rab1 a1B Rba2 Bf6 Rbb2 Bd4 Ra8 Nb3 R8a6 B6c5 Ne5 Rd5 Kf5 Bd6 g6+ Kh8 g7+ Kh7 Kg4 Bd8 Kf5 Ba7 g8Q+ Kh6 Qf7 Nca1 Qe6+ Kh7 Kg4 Nbc5 Ng6 Nf6+ Kh4 Rdd4 Kg5 Rd5+
1RBN3B/b3PR2/2n1qQ2/2rBR1br/Qr3rb1/1Kp3k1/5p2/B2rB3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Bg4 Ra3 Be6 Ra1 Bc8 b4 gxh4 e4 a5 Na3 a4 Nc4 Nc6 Ne3 Na5 bxa5 fxe3 g4 Kd7 d4 Kd6 g5 c5 b6 f5 b7 h5 b8B+ Qc7 e5+ Ke7 a6 e2 Kd2 e1B+ Kc2 f4 a7 a3 g6 h3 g7 h4 d6+ Ke6 d7 Kf5 d8B c4 d5 h2 d6 f3 e6 Kg4 d7 h3 Ne2 f2 Nf4+ Kg3 Bf6 a2 d8Q Qd7 Bbe5 Rb8 a8B Rh4 Bd5 Bc5 Bd2 Ne7 g8R+ Rg4 Bd3 Nc6 Bh8 Rb4 Bf5 Ba7 Qf6 Rg5 e7 Qe6 Rb1 a1R Rf8 Raa4 Ba1 c3 Rf7 Bd7 Rf1 h1R Rb2 h2 Bh3 Rd4 Rb8 Rab4 Bf5 Rg1 Bh3 h1R Bg4 Qe5 Ne6 Rhh5 Nd8 Qe6 Bf5 Rf4 Bh3 Rbc4 Kb3 Rgg4 Qc2 Rc5 Qa2 Rgh4 Qa4 Rh1 Bc1 Bd2 Re1 Bc8 Re5 Rd1 Bf5 Be3 Bd2 Rhg4 Be1 Rb4+ Ka3 Bg5 Ka2 Rgf4 Bh3 Ba6 Bg4 Be2 Bh3 Qd6 Bc8 Qe6 Ka3 Bg4 Ka2 Rbd4 Kb3 Rb4+
4N2b/1KbQ3B/1p1Qp2n/r1B1B2k/6rN/1Brq2RQ/1rP3q1/bB6 w - - 0 1 legal: proof: g4 c5 b4 a5 a4 axb4 d4 cxd4 e4 Qb6 e5 Kd8 e6 Kc7 exf7 Kc6 Ra2 Qd8 Ra3 bxa3 f4 b6 f5 Ba6 f6 Bd3 Bb2 Kb7 Bc1 Bf5 gxf5 Kc6 h3 g5 Nc3 g4 h4 Na6 Nb1 Nc7 Qd3 Ne6 Qd1 Ng5 hxg5 Kd5 Rh4 Kd6 Rh1 Kc6 Kd2 Kd5 Kd3 Ke5 Kc4 d5+ Kb5 h5 Kc6 g3 g6 g2 a5 a2 g7 a1B a6 h4 a7 d3 Na3 d2 Rh3 Kf4 Rg3 h3 Nc4 e6 Kb7 d4 Bb2 d3 Nf3 g1B Nd6 h2 Be5+ Ke3 Ne8 Bd6 f8Q h1Q f7 Qg2 f6 Bc7 Qd6 Nh6 f8B Rg8 f7 Ke4 Qa3 Kf5 Bc5 Bgd4 Be2 Rc8 a8B Bdb2 Qb1 Bc3 Qb5 d1R Qd7 d2 Bc4 Rb1 Ba2 Rb2 Bb1 d1R Qb3 Rd5 f8Q+ Nf7 Qfd6 Nh6 Be3 Ra5 Bc5 Ng4 Qa3 Kg6 Qb3 Kh5 Qa3 Rf8 g8B Nh6 Bh7 Rg8 Qb3 Bd4 Qd3 Rg4 Qf1 Qd2 Nh4 Q8g5 Qh3 Qd3 Bf4 Bh8 Be5 Rab5 Ka6 Qgd2 Bd5 Qg2 Kb7 Ra5 Q7c6 Rd8 Bb3 Rd7 Qcd5 Rdg7 Q5c6 Rc4 Qd7 Rc3 Qcd5 Rg4 Q5c6 Qg1 Qcd6 Qg2+
1r1nN3/Bp1Kb3/2B5/2qR1r2/2Q3np/r1N2P2/2k1NpBN/Q2N1n1q w - - 0 1 legal: proof: c4 a5 h4 g5 b4 gxh4 e4 axb4 d3 d5 cxd5 f5 exf5 c5 Ba3 Kd7 Bc1 Ke8 a4 e5 f3 e4 Rh2 e3 Rh3 c4 Ke2 c3 Ra2 Bd7 Rh1 Bb5 Rb2 Bc4 dxc4 Ra7 Ke1 Ra8 Rf2 exf2+ Ke2 Ra5 Qd2 Ra6 Qd1 Ra8 Ke3 Kf7 Ke4 Kf6 g4 h5 g5+ Ke7 Ke5 c2 g6 b3 c5 b2 c6 h3 f6+ Ke8 Ke6 h2 c7 h4 c8Q Ra5 g7 Ra8 a5 Ra6+ d6 Rb6 a6 Ne7 g8B Nd7 a7 Ne5 a8N Nd7 Qc4 Qb8 f7+ Kd8 Bg2 Nd5 Nc3 b1N Nge2 Nb4 Nc7 Be7 f8N Nf6 Nh7 Rb5 d7 Nc6 Be3 c1R Ba7 Nd2 Ng5 Nf1 Ne8 Qc8 Nge4 Rf5 Qda4 Ra1 Nd1 Ng4 N4c3 Ra3 Rg1 Rb3 Qa1 h1Q Bf7 Ra3 Bg6 Rff8 Be4 Rf5 Bd5 Nb4 Be4 Qc5 Bc6 Rhf8 Ng7 Kc7 d8N Rg8 Nf7 Rb8 Nh6 Qb5 Be3 Qc5 Ne8+ Kb6 Kd7 Ka5 Bd4 Nd3 Be3 Nf4 Bd4 Ne6 Be3 Ngh2 Ng4 Nd8 Bd4 Ne3 Re1 Nhf1 Nh2 Ng4 Be3 Qe5 Ba7 Qe3 Qd5+ Kb4 Qc5+ Kb3 Qc4+ Kc2 Ng1 Qc5 Re5 Ng3 Rd5 Nf1 Nge2 Qa5 Rc5 Qb4 Rd5 Qc5
r2BQ1r1/4nQ2/1p1BB1Rp/3rN1Q1/1n3p1Q/PK2n1q1/q1NQqk2/8 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 g4 axb4 a3 d5 cxd5 b3 Ra2 bxa2 g5 Be7 h3 Bg4 Nf3 f5 Ng1 Bf6 gxf6 g5 Bb2 Bf3 Bc1 g4 Rh2 g3 Rh1 Bg4 hxg4 Kf7 Qa4 Kf8 Qd1 Ke8 e4 Kf7 d4 Kg6 Kd2 Kg5 Kc3 a1Q+ Kb3 c5 d6 g2 e5 b6 d7 h6 e6 Ne7 d5 Rg8 d6 Ra5 f7 Qe8 d8B Qf6 f8Q Rg7 d7 Ra4 Nd2 f3 Ne2 g1Q Bh3 Kh4 g5 f2 g6 f1N Nd4 Kg3 Nc2 Kf2 Nf3 Ne3 Qf7 Rg8 g7 Qa1 Ne5 Qg3 Rg1 Ra8 Qg4 Na6 Qh4 Nb4 Bb2 Rf8 g8Q f4 Qgg5 Rg8 Bc3 Na6 Bb4 c4+ Ka4 c3 Bd6 Nb4+ Kb3 N7f5 B8c7 Ne7 d8Q Qb5 Qd7 Qe2 Bd8 Rh8 Qb5 Rg8 Qd3 Nbc6 Qd2 Nb4 Nd4 c2 Bf5 c1R Nc2 Nc8 e7 Rd1 e8Q Ne7 Be6 Nbc6 Qc3 Rd5 Qd2 Nb4 Qhh5 Qh2 Rg3 Qg2 Qgh4 Qh2 Rg6+ Qg3 Q5g5 Qa2+
Bn3QN1/3n1q1q/k1pN1q2/2n1RB2/3QK2p/1PpN4/4Nrrq/6NQ w - - 0 1 legal: proof: c4 e5 d4 b5 a4 d5 axb5 dxc4 f3 e4 e3 Bc5 d5 Bd4 exd4 e3 Ne2 Be6 Ng1 Bf5 h4 Be4 fxe4 g5 h5 Qc8 Rh4 Qd7 Nc3 Qc6 Nh3 Qd7 Be2 Qg4 Qa4 Qg3+ Kf1 Ne7 Bd2 Qh2 Rd1 Rf8 Nb1 Na6 Bc1 Qe5 Re1 Nb8 Qd1 Qe6 Bd3 Rg8 Ke2 Qe5 Rh1 Qd6 Ng1 Rh8 Ke1 Qd8 Bf1 Ng8 g4 h6 Bd2 Ke7 Bb4+ Kd7 Be7 gxh4 g5 Ke8 g6 Rh7 Bf6 Rh8 Bg5 hxg5 Ke2 Kd7 Kf3 Kc8 h6 Kb7 b6 a5 h7 f5 d6 c3 g7 e2 d5 e1Q e5 f4 d7 Ra6 b3 Qg3+ Ke4 g4 e6 f3 e7 f2 e8B Qh2 d6 g3 Bh3 f1N Bf5 Qf6 d8Q g2 d7 Qf7 Qf6 Ra7 d8Q Ka6 Q8d4 Ra8 Bc6 Ng3+ Kd3 Ra7 b7 Ne4 Qh6 Ngf6 g8N Nfd7 Qf8 Nec5+ Ke3 Na4 Ke4 Ra8 Nh3 Ra7 Re1 g1Q Qf3 Qgg6 Qh1 Qgg7 Ng1 Qgg6 Kd3 Ra8 Re5 Qgf6 Ke4 Ra7 Ne7 Rg8 h8N Rg2 Ng8 Qh7 Nf7 Nac5+ Ke3 Rf2 Nd6 Qff7 Bd5 Nd3 Ke4 a4 Ne2 a3 Nd2 a2 Nf3 a1Q Nfg1 Qc1 Qe8 Qg5 Qc8 Nc6 Qf8 Qgf6 b8N+ Ka5 Ke3 N3c5 Na6 Ncb8 Ba8 c6 Nb4 Kb6 Nd3 Ra2 Bh3 Ka6 Bf5 Nb7 Ke4 Rg2 Nec1 Raf2 Nce2 Nbc5+
B2R4/1r2p3/4B1kq/r2p4/2B1n2B/2QNP3/1Qp1KRp1/1qQrnBn1 w - - 0 1 legal: proof: g4 f5 a4 fxg4 h4 b5 axb5 g5 Ra2 g3 Bg2 g4 Bf1 Bh6 Ra1 Bg5 hxg5 c5 c4 Bb7 d4 Bd5 b3 Be6 Nc3 cxd4 c5 Bc4 bxc4 dxc3 f4 Kf7 g6+ Kg7 f5 h5 b6 a5 f6+ Kf8 f7 Kg7 c6 a4 c7 c2 c8B d6 c5 h4 c6 a3 b7 a2 c7 g2 Nf3 g1N Be6 g3 c8B h3 Ne5 g2 Bg5 h2 e3 Qe8 Qc1 Ra4 Nd3 Nd7 b8Q Ra5 Qbb2+ Ngf6 Bb7 Ne5 Ba8 Qb8 Bh4 Ne4 Rb1 Kh6 g7 a1R f8Q Kg6 g8B Qb6 Bc4 d5 Be6 Qb3 Qf2 Rb8 Qfd2 Rb7 Qdc3 Qb6 Qa2 Qa6 Rb6 Qb5 Rd6 Qb1 Qaa3 Nh3 Rg1 h1Q Qab2 Nf3+ Ke2 Ne1 Rd8 R1a4 Bb3 Rd4 Bc4 Qh2 Nc5 Rd1 Nd3 Qf4 Rh1 Qh6 Rg1 Nhg5 Rh1 Ngf3 Rh3 Nfg5 Rf3 Nh3 Rf2 Ng1#
2N2BqR/r2b4/1r2Nrbq/q2n3k/3nNB2/N2r1PQ1/Q3N1r1/1B1K1n2 w - - 0 1 legal: proof: b4 e5 g4 h5 a4 hxg4 e3 c5 d4 cxd4 Ra2 b5 axb5 e4 Ra6 Bd6 Rc6 Bf4 Re6+ fxe6 exf4 Qb6 Qd2 Qa5 Qd1 Qd8 h4 Kf7 c4 Kg6 b6 a5 c5 d5 f5+ Kh5 c6 g5 c7 e5 f6 d3 f3 e3 b7 d2+ Ke2 d4 f7 a4 f8N a3 b5 a2 b6 a1N Qb3 d1B+ Ke1 e4 Qc3 g3 Qc2 g4 Qc5+ Qg5 Nd7 g2 Qb5 g3 Bc4 e2 Qb3 d3 Nd2 Nf6 Ne5 Qh6 Bb2 Nc6 b8B Nd4 b7 Bd7 c8N Nd5 Bd6 Bc2 b8N Rf8 Qa2 Ra7 Na6 Rf6 Bba3 Nab3 Nc7 Bb1 Ne6 Bc2 Nb1 Nd2 Nc3 Nf1 Bb5 Bb1 Nc4 Bc2 Bf4 Bb1 Nh3 g1R Nhg5 g2 Bf8 Bc2 Na3 d2+ Kf2 e1R Ne2 d1R Bd3 Rb1 Rh3 Rb6 Rh1 Bb3 Bb1 Rd1 Rh2 Rd3 Ke1 e3 Ne4 Rh1 Rh3 g1Q Rh2 Qg8 Rh3 Kg6 Rh2 Rg1 h5+ Kf5 Rh4 Rg2 Rh2 Bc2 Rh1 Qhg7 h6 Kg6 h7 Qh6 h8Q Qg5 N2c3 e2 Qh4 Qh6 Qf2 Qhg7 Rh7 Qh6 Qg3+ Kh5 Rh8 Re3 N4g5 Bg6 Nge4 Nh2 Kd2 Rd3+ Kc1 e1Q+ Nd1 Qb4 Ndc3 Nf1 Ne2 Rc3+ Kd1 Qa5 Bb8 Re3 Bf4 Rd3+
1n1b1k2/4rb1r/1R2Q1QP/qBr2N2/4qr1Q/4Kb1n/r3R1qN/R1R3R1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 g5 Ke2 f5 h4 c5 d4 a5 d6 c4 b6 c3 b7 f4 d5 g2 e5 f3+ Ke3 a4 b4 a3 h5 g3 e6 f2 b5 g4 b6 c2 e7 c1R h6 a2 Ba6 f1B Qc2 Be2 Ke4 Bf3+ Kd4 Ra7 Na3 Rh7 Nc4 Be6 Ke3 Nf6 Qg6+ Bf7 Rh2 Ne4 Bb5+ Qd7 Qe6 Qc6 Qg6 Ng5 Qe6 Be4 Nf3 g1R Re2 g2 Nh2 Rgf1 Qg6 g1R Qe6 g3 Qg6 Nd7 b8R+ Qc8 b7 g2 Ra8 Rf4 b8R Nh3 Rb6 Bf3 Qe6 Rce1 Rc1 a1Q Qg6 Rc7 Ra5 Qb1 Ra1 Qd8 Qe6 Rc8 Qg6 Rc6 Qe6 Nb8 Qg6 Kd7 e8Q+ Kc8 d7+ Kc7 Ng4 Qf6 d8R Be4 Rd6 Rc5 Kd2 Nf2 Re3 Be7 Qg5 Qe6 Qg6 Qb4+ Rec3 Bh4 Nce3 Qa5 Nf5 Rgf1 Rcb1 g1Q Rd1 Qe7 Re6 Bg2 Qc6+ Kd8 Re5 Ra4 d6 Ra3 Nh2 Nh3 Kd3 Ra2 Rcc1 Bgd5 Re3 Qg2 Re6 Re4 Re1 Rff2 Rg1 Rfe2 Re5 Rec4 Re6 Bf3 Qe4 Bf6 Qh4 Ree4 d7 Rf4 Ree1 Rce4 Re2 Qe6 Ng7 Ke7 Nf5+ Kf8 d8Q+ Qe8 Qd5 Bd8 Qb3 Qc6 Qc4 Re7 Qce6 Qb7 Ke3 Qe4+
1KR1rRN1/1q4q1/3kN3/2Rbqq2/1rQ1R1qQ/6Rr/Bb5P/nn4Nq w - - 0 1 illegal: No possible last move, all moves rejected
4nN1k/b3n1rr/Qqq1Q3/r6q/3bBB2/rQq3RR/Q4PK1/3Qq1R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 Nd2 Bb7 Ndf3 h5 Ne5 Bd5 Ng4 c5 axb5 cxd4 Ne5 Be6 g4 Bf5 gxf5 Na6 Ng4 hxg4 Bh3 Nb8 Bg2 Na6 Bf1 Nb8 b4 Kf7 c4 d5 h4 g5 f6 a5 b6 e5 b5 g3 c5 e3 b7 g2 c6 e4 b6 a4 h5 a3 c7 e2 c8R a2 h6 g4 h7 g3 Rc6 d3 Rh2 d4 Rh6 Bc5 Rd6 Ne7 Qc2 Nd7 b8Q Ra5 b7 Qb6 Nh3 g1R Rg6 g2 Rb1 a1B Qa7 Rh1 b8Q g1R Qbb7 Ra8 h8Q Rg5 Rg8 Rg7 Nf4 Rhh7 Qaa6 Qc6 Qb4 Ba7 Ne6 Kg6 f7 Nf6 f8Q Ne8 Qf3 Ra3 Bf4 Qb6 Kd2 e3+ Kc1 e1Q+ Qfd1 e2 Bg2 Qh1 Qbb3 e1Q Qca2 d2+ Kc2 Qe5 Kd3 Qeh5 Ke4 d3 Rd5 Bd4 Nf8+ Kf6 Rd7 Qc5 Kf3 Qc3 Rd5 Qe1 Rh5 Qh1 Qe2 d1Q Rh3 Qde1 Rc1 d2+ Qe3 Rh4 Qh5 Ra5 Qg4 d1Q+ Kg3 Ra3 Be4 Rhh7 Ra1 Qdc1 Qd1 Qcc6 Qeb3 Qf3+ Kh2 Qc1c3 Qgc8 Qh5 Rc1 Rf7 Rg3 Rfg7 Kg2 Ra5 Ne6 Kf7 Rb1 Kg8 Nf8+ Kh8 Qce6 Qed2 Qde2 Ra3 Rg1 Qe1 Qed1 Rd8 Kh1 Rd5 Kg2 Rda5
Nk4bb/1NR4b/1r1rQB2/r2nR3/7N/1bqqNPR1/n3r1Q1/1N4rK w - - 0 1 illegal: No possible last move, all moves rejected
bqB2B2/1rb1qB1q/1P1nq3/K4N2/2r1Qqr1/rB4Q1/1R4Nn/2Q3Bk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 a5+ Ka4 f5 e4 c5 b4 c4 g4 c3 g5 h3 b6 h2 b5 h4 b7 h3 g6 c2 g7 f3 b6 f2 Qe2 f4 Qf3 Rh7 Qg4 f3 Nd2 Na6 b8B+ Nc7 Bc4 f1Q Bb5 f2 Bd7 Qe7 Ra3 Nh6 g8B Qe2 Nf1 Bb7 Ne3 f1Q Bc8 Qf4 Qg3 Ng4 Ng2 Ra7 Nf3 Ba8 Be3 c1R Bg1 Rb7 Nfh4 Rg7 Ba7 Ne8 Bb8+ Rcc7 Bf7 Qa2 Kb5 a4 Ka5 Qe2 Bg8 Qe6 Bf7 Be7 Bg8 Bd8 e5+ Ke7 Bf7 Nd6 Bg8 Rc4 Nf5+ Kf8 Bf7 Bc7 Bg8 Qe7 e6 Rg5 Nh6 Kg7 Nf5+ Kf6 Bf7 Qd8 e7 Qe6 e8B Qde7 Bg8 Rg7 Bh5 Kg5 Bhf7 Nb5 d6 Rg6 d7 Nd6 Ra2 a3 Rb2 a2 d8Q Kh5 Qd7 a1R+ Qa4 Kg5 d5 Kh5 Be3 Kg5 Rhb1 h1Q Bg1 h2 Re1 Kh5 Re3 Kg5 Ra3 Kh5 Nge3 Qhf3 Qd1 h1Q Qc1 Nh2 Ng2 Q3e3 Rc2 Q3e5 Rb2 Nb5 d6 Qh8 d7 Nd6 Qf2 Kg4 d8Q Rg5 Qe8 Rg7 Nge3+ Kh3 Qfe1 Qhe4 Ng2+ Qd3 Qc6 Rg4 Qce4 Qdg3 Be8 Qhh4 Bgf7 Qhh6 Ba4 Qh7 Bb3 Nf3 Bf2 Kh2 Bg1+ Kh1 Qe1e3 Nh2 Qec3 Qh8 Qcf3 Qgh4 Qg3 Q4h7 Raa2 Q7f6 Qcb1 Nb5 Ra3 Bd8 Bd6 Bc7 Bd7 Qb8 Bf8 Nd6 Qc1 Qfe7 Bc8 Rxa3+
nN1Q1B1k/nrq2q1P/1b3nr1/7Q/1B1nq3/2R3NK/1B3N1B/2qBqb2 w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 g5 h4 a5 d4 c5 h5 f5 e5 Kf7 e6+ Kg7 d6 c4 b6 g4 b7 f4 b5 c3 d5 a4 e7 c2 e8Q f3 b6 f2+ Ke2 a3 d7 a2 d6 a1Q Bd2 c1Q Ba5 Ra7 Qb3 Qaf6 Qd1 Qf7 Bb4 Nf6 Nh3 g1Q Nd2 g2 Ne4 g3 Kf3 Nc6 b8B Ba6 b7 Rh6 Be2 f1N Nhf2 Kh8 Rh3 Qc7 d8B Qh1 d7 Ne3 Bde7 Rg6 d8B Ned5 h6 Nb6 h7 Na8 Qd4 Qce1 Bd1 Bf1 Qe5 g1Q+ Kf4 g2 Rc3 Ra1 Ng3 Na7 Qd7 Bg7 Bf8 Rb1 Kf3 Bh6 Qh5 Be3 Bde7 Rb3 Qd8 Bb6 Ba3 Qh4 Bb2 Qa4 Bb4 Qh1 Qd6 g1N+ Kf4 Nf3 Kf5 Qcc4 Qd8 Nd4+ Kf4 Qae8 Be5 Qcc7 b8N Rh6 Bed6 Q8e4+ Kg5 Qg1 Bf4 Rg6+ Kh4 Q4e3 Be5 Qg2 Bf4 Qc1 Bf4d6 Qge4+ Bf4 Bb5 Kh3 Bf1+ Kh2 Qce3 Ngh1 Qce7 Bbd6 Ba5 Bg3 Rb6 Bb4 Rb7 Bc7 Qc1 Bcd6 Bb5 Kh3 Qc7 Bh2 Bb6 Ng3 Bf1+
K1rn1nNQ/2R5/3PNN2/k4N1B/NbB1q1n1/bQ5b/b2b2Bn/3r1b2 w - - 0 1 illegal: No possible last move
N2q3N/1q2B2n/4nr2/rRP3Rb/kb2q2p/6Q1/1nNN3r/1KbQRN2 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 h4 gxh4 b4 a6 b6 Bg7 b7 Nh6 b5 Bf8 b6 Ng8 Bb5 axb5 Kd2 h5 g4 e5 c4 d5 Kc2 Kd7 f4 Kc6 f6 b4 f5 b3+ Kb2 e4 g5 d3 c5 Kb5 g6 h3 g7 d2 f7 d4 f6 h2 Ra4 e3 Nf3 e2 Rc4 d3 Re1 h1Q Rg4 Ra5 Nh2 Nc6 b8N Qe4 b7 Nd4 Nc6 Ka4 b8R Ne6 Rg5 h4 Rb7 Rh6 Nd4 Bd7 Rb5 Be8 Ka1 Qb7 Nc2 b2+ Ka2 Bd6 f8N Bf4 f7 Nf6 g8Q Nh7 Nf1 Rf6 Nd7 Be3 f8N Bh5 Nba3 b1R Ng6 Rb2+ Ka1 Qda8 Nc4 Qe4 Nh8 Qab7 Ng3 Ra2+ Kb1 Bf4 Rh1 e1B Nf1 Be3 Qb8 Bf4 Bb2 Be3 Qg3 Bf4 Qdg4 d1N Ncd2 Be3 Be5 Nb2 Bd6 Bf4 Qd1 Be3 Nb3 Bc1 Be7 Bc3 Nbd2 Bb4 Nf3 d2 Nb6+ Kb3 Na8 Ka4 Qe2 d1Q N3d2 Qed5 Qeg4 Q1f3 Rg1 Qfe4 Qd1 Qd6 Rg2 Qd8 Re2 Ra3 Re1 Rb3 Qb8 Rh3 Qg3 Rh2
Kb3kB1/3P4/qRr1Q2n/2q1r1bq/1p6/Qr1B1B1n/2N1Nn2/B1N3bB w - - 0 1 legal: proof: c4 f5 b4 a5 f4 axb4 e4 fxe4 f5 g5 a3 d5 cxd5 Bh6 Ra2 Bg7 Ra1 Bf8 g4 Bd7 a4 Bg7 Ra3 Bf8 Rf3 Bb5 Rf4 gxf4 h3 Be2 g5 Bg4 hxg4 Ra6 Ne2 Ra7 Ng1 Ra8 Ke2 b5 d4 e5 d6 h5 f6 c5 g6 c4 a5 f3+ Ke3 f2 g7 c3 d5 h4 g5 b3 g6 b2 a6 c2 a7 b4 Bb5+ Nd7 Be2 f1Q Bd3 h3 Qf3 h2 Na3 b1Q Ne2 Qc8 Bb2 Nc5 Ba1 Nh6 g8B Ne6 g7 Ng5 Nc1 Nh3 Rg1 h1N Rg6 Rb8 a8B N1f2 Qg4 Be7 Qe6 Rb6 Bb7 Rc6 f7+ Kd8 f8N Ke8 Bh7 Qd1 g8B Qh5 Rf6 Qa2 Ng6 Qc4 Nf4 Qa6 Rg6 Kf8 d7 Bd6 Nfe2 Bb8 d6 Qc7 Bf7 Qca5 Bhg8 Rh7 Be8 Qd5 d8Q Qc5+ Nd4 Rf7 d7 Rf5 Qa5 Rf3+ Ke2 e3 Bef7 e4 Rf6 Qhe5 Bh5+ Nf7 Rg6 Nh6 Ba8 Rg3 Bf3 Qg5 Nb1 Qh5 Nc3 Nhg4 Qa3 Nh6 Ncb3 c1B Nc2 Bd2 Nc1 Qcb5 Kf1 Qbc5 Bh1 Rf3 Kg2 e2 Bb7 e1R N3e2 Bg5 Ba8 e3 Bb7 Rf4 Kg3 Rg4+ Kf3 Nd1 Ba8 Rg3+ Ke4 Rf3 Nf4 e2 Bb7 Qe7 Kd5 Ndf2 Ba8 Rd1 Bb7 e1B Nfe2 Bed2 Ba8 Bde3 Bb7 Re1 Ba8 Rc3 Bc6 Bb6 Bb7 Rb3 Kc6 Rf6 Ba8 Qc4+ Kb7 Qec5 Qd5 Rc6 Qe6 Bh2 Bf3 Bg1 Kb8 Qa6 Bb7 Ba7+ Ka8 Rb6 Bh1 Rd6 Bbf3 Rc6 Nc3 Re3 N3e2 Re5 Qd5 Rc7 Rb6 Rc6 Qe6 Bb8+
Q6q/6RQ/p1Rq4/2nr1n2/bnN3N1/b2b2Kn/N1n1Q1P1/2NBrNk1 w - - 0 1 illegal: No possible last move
K2RN2B/QB2Qnp1/1b3N1q/1r3n2/Q2P1r1B/1r4b1/B1Bq2r1/1rk1q3 w - - 0 1 legal: proof: c4 h5 a4 b5 axb5 d5 d4 e6 g4 hxg4 b4 Bd7 Ra3 dxc4 Rd3 e5 e3 e4 f3 exd3 e4 Bc6 e5 Be4 fxe4 Qe7 Nd2 Qd7 Nb1 Qd8 Kd2 Kd7 Ke3 Ke6 h4 a5 h5 c5 b6 f5 b7 d2 h6 f4+ Ke2 a4 h7 g3 Kf3 g2 b5 c3 b6 c2 Nh3 g1R Ba6 a3 Nc3 a2 Nf2 a1R Ng4 c4 Nd5 c3 Ndf6 Rb1 Ne8 Ne7 Ngf6 Nbc6 b8Q Qd6 b7 Nf5 Qa7 Rg2 b8Q Nd8 Qbc7 Rab8 Bb7 Nf7 Re1 Rg8 h8B Qb4 Ba3 c1B Qda4 d1Q+ Re2 Qb6 Be7 Qe1 Rb2 c2 Rb5 Bb2 Rd5 c1Q Rd8 Qcd2 Qc5 Bc3 Qcb4 N7h6 Qba3 Ba5 Qe3 Kf7 e6+ Kg6 e5 Kg5 Ke4 Nf7 Kd5 Qa6 Qe2 Bb6 Kc6 f3 Bc8 Qaa5 Rd5 Kf4 Ng4 f2 Nd6 Bc7 Bh4 f1R e7 R8b3 Nf6 Qe3 e6 Rb7 e8B N7h6 Bh5 Nf7 e7 R7b3 Ba6 Rf3 Bd3 Rf1 Bf3 Q3c1+ Bc2 Qab4 Qc4 Ke3 Qcc5 Kd2 Bfe4 Qc3 Bf3 Qd3 Qcb4+ Qc3+ Kb7 Bb8 Ka8 Rff2 Nde8 Bg3 Nc7 Rf1 Qba3 Qce3 Rd6 Qh6 Bd5 Rf4 Q3b4+ Rc3 Ba2 Qcd1 e8B Kc1 Qbc5 Qdd2 Bc6 Rcf3 Rd5 Rfb3 Qd6 Be7+ Qd8 Re8 Bb7 Bc5 Rd6 Re7 Nce8 Re5 Qe7 Bb6 Rd8 Reb5
bqkB1N2/2p4n/1RNn1N1b/1rRK1b2/4P1r1/1nb4b/1RRRQ3/6qQ w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 d5 h4 gxh4 cxd5 exf4 e3 f3 Be2 fxe2 Kf2 Qe7 Qe1 Qd6 Qd1 Qd8 Kf3 Kd7 Ke4 e1N b4 a5 g4 h5 d4 h3 g5 h4 b6 h2 g6 h3 d6 f5+ Kd5 f4 g7 f3 e4 a4 b7 a3 b5 f2 b6 f1B Nf3 a2 Bg5 Ba6 Nh4 Bb5 Ng6 Nd3 Qe2 Ra5 Nc3 Nh6 g8Q Nf5 Rhc1 h1B Rc2 h2 Rac1 Rh4 Qh8 a1B Qhh5 Qe8 Bd8 Bg2 Qhf3 Bh3 Qh1 Na6 b8R Nf2 b7 Nc5 Qc4 Bh6 Qe2 Qh8 Nf8+ Ke8 Na4 Rg4 Nb6 Nb3 Nbd7 Ba4+ Rc5 Bc3 Rc2 Rb5 Nf6+ Kf7 d7 Nd6 Qhf3 h1Q Qg2 Qg1 Qh1 Bb2 Be7 Bc3 d8R Bf5 Rd7 Nc8 Rd6 Qg8 Rb6 Nd6 Rd8 Qh8 b8N Qg8 Nc6 Qh8 Rdb8 Qg8 Nh5 Qh8 Bd8 Ke8 Ng6 Kd7 R8b7 Qe8 Nf8+ Kc8 Nf6 Rb4 Ra7 Bb5 Raa2 Ba6 Rab2 Rb5 Ne6 Bb7 Nf8 Nf7 Kc4 Ba8 d5 Bg2 d6 Nh3 Kd5 Nhg5 Ra6 Nh7 d7+ Kb7 Be7 Bh3 d8R Nd6 Rd7 Qb8 Rb6+ Kc8 Bd8 Ba5 Ke5 Nb7 Rdd2 Bc3+ Kd5 Nd6
4n1q1/1Br1r3/4QbRQ/N2N1Qpn/q1PB3N/5n2/br5r/1Nqk2NK w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 b4 Na6 f4 Nb8 Ra3 Nc6 Rg3 gxf4 g5 Nb8 g6 Ba6 Rg2 Bc8 Rg5 hxg5 Kf2 a5 Kg2 e5 h4 Ke7 g7 Kd6 h5 Kd5 f6 Ke4 b6 d5 b5 d3 h6 d2 h7 Ke3 b7 d4 f7 f3+ Kh2 d3 b6 a4 c3 a3 Bh3 a2 Ne2 a1R Qa4 e4 Re1 f2 Bd7 f1R Bf5 Ra2 Ba3 d1Q Qb5 d2 Bb2 Na6 b8Q Qa4 b7 d1Q Qd6 Nf6 b8N Qc1 g8N Nh5 Nf6 Be7 f8Q Nc7 Qe6 Ne8 Nc6 Ra7 Na5 Rc7 Nd5+ Kf2 Qg7 e3 Ng1 e2 Qgh6 Bf6 Be4 Ba6 Ba1 Rb2 Kh1 Qa8 Rd1 e1N Qbd7 Bd3 c4 Nf3 Qf5 Bc2 Qde6 Bb3 Rd2+ Ke1 Rh2 Ra2 Bd4 Rb2 Rh4 Kd1 Rh2 Rg8 h8N Re1 Ng6 Ba2 Nh4 Rgg7 Re2 Rge7 Re3 Ree2 Rb3 Red2 Rb8 Nd6 Rg8 Ne8 Rg6 Rg2 Nb6 Rgd2 Bb7 Qb8 Nd5 Qc8 Qb6 Qe6 Qd6 Qg8 Qde6 Rh2#
1q1QRb1r/BN4N1/3r4/2Pq2q1/2Q2QKN/pR1n2N1/2nb1r1N/3nr1k1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 a5 e5 d5 e6 g5 b6 a4 b7 d3 b4+ Kd4 h5 d2 b5 a3 h6 Nd7 b8Q Nc5 e7 Nf6 e8N Ra6 h7 Rd6 Qa4 d1Q b6 Kd3 b7 d4 Bd2 Nd5 f6 Ne3 f7 Nc2 Ng7 Ke4 Qb5 d3 Be3 d2 Rh3 Kd3 Qc7 Qb8 Ne2 Qh1 Rg3 Qh5 Qd8 d1N+ Kf1 f2 Kg2 f1R Nd2 Re1 Nf3 Ke4 Nh2 Nd3 Rf3 g3 Ba7 g4 c5 Qe5 Rb1 Qd5 Rb3 Be7 Rf2 Bf8 Qc4+ Ke3+ Nf3 Qc8 b8N Qc7 Rf1 Qc8 Nc6 Qb8 Kg1 g2 Kh2 g3+ Kh3 g1B Kg4 g2 Nh2 f3 Na5 Bf2 Nb7 g1Q+ Ng3 Qg2 Qd7 Bg1 Qc8 f2 Qd8 Re2 Re1 f1R Rb5 Kf2 Rb3 Rd2 Re6 Re1 Re8 Rg8 h8N Rde2 Ng6 Rh8 Nf1 Bh2 Nh4 Kg1 Qa6 Rf2 Qb5 Be7 f8Q Bg5 Qf5 Bd2 Qe5 Qge4+ Qf4 Qe3 Qbc4 Qee5 N3f5 Bg3 Nh2 Qf6 Qf3 Be5 Ng3 Qg5+ Kh3 Bf6 Qfg4 Be7 Qgf4 Qf6 Kg4 Bf8 Qcd4 Qh6 Qc4 Qhg5+
1Q1nrNrR/3b1n1r/n5Q1/kPnQQqR1/2Q3q1/2b1p3/3B4/2NNK2b w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 f4 g5 g4 gxf4 g5 h6 Be2 h5 Bg4 hxg4 b4 Kd7 d4 c5 h4 Kc7 d6+ Kb6 g6 a5 g7 e5 d5 f3 h5 a4 h6 g3 d7 c4 h7 a3 d6 f2+ Kd2 f1B Nc3 a2 Rh2 e3+ Ke1 e4 Qd3 e2 Qb1 g2 Nh3 g1Q Qb3 Nc6 Ng5 Qg4 Nf3 Qf6 d8N Bd7 Rb1 a1N Bd2 Nh6 g8Q Bg7 Nd1 c3 Ne6 c2 Qc4 c1N Ng1 Nf7 Nf8 Qff5 Rh6 Be5 Qg6 Ncb3 Rh2 Rg8 h8Q Bc3 Qe5 Ncd8 Rh8 Nc5 Rb3 Ra4 Ra3 Ra7 Ra5 Be6 d7 Na6 Nb2 Nb3 Nd1 Kb7 b6 Nbc5 Rb5 Bg2 Ra5 Kc6 b7 Kb6 b8Q+ Rb7 b5 Bf3 Ra3 Bh1 Rb3 Ka5 Rb4 Nc6 d8Q+ Rc7 Qdd5 Bd7 Nh3 Ncd8 Nhf2 Rb7 Nd3 Qfg5 Kf2 e1R Nc1 Re3 Qe2 Q5f5+ Ke1 Rg3 Rd4 e3 Qec4 Rh3 Rf4 Rh7 Rf3 Rb6 Rg3 Re6 Rg2 Re8 Rg1 Qgh5 Rg5 Qhg4
Q2R1Nn1/3QQ1R1/1q3qpb/5N2/B1QPrr1n/nR2b1b1/1K1k4/Q2q2q1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 b3 f5 Bb2 h6 Be5 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 d4 Kf7 Kd2 Kf6 Kc2 a5 h4 c5 e4 g6 b6 c3 b7 g4 b4 a4 h5 Kg5 b5 c4 b6 a3 h6 a2 e5 f2 f6 g3 f7 f3 e6 Kf4 h7 Ke3 e7 g2 Rh3 Bh6 f8Q Nc6 e8Q+ Nce7 Qd7 Nf5 b8Q Nh4 b7 Qb6 Qbc7 Re8 b8Q Re4 Ne2 g1Q Na3 Rf4 Kc1 c2 Qfe7+ Re4 Rb1 a1N Ng3 Bf4 Bg2 f1Q Nb5 f2 Kb2 Bh6 Qa8 c1B+ Ka2 c3 Rb3 Nc2 Qc4 Bd2 Qa1 Qd1 Nc7 f1Q Ne6 Na3 Nf8 Be1 Nf5+ Kd2 Rh1 c2 Kb2 Rf4 Bc6 Bg3 Ba4 Re4 Ng7 Qff6 Nf5 Be3 Rh3 Nh6 Rh1 Rg8 h8R c1B+ Ka2 Rg7 Rh7 Rf7 Rg7 Ng8 Rh2+ Ke1 Rc2 Bcd2 Kb2 Bh6 Rc3 Bde3 Rc1 Kd2 Rc3 Qc5 Rb8 Qcb6+ Rb3 Qe5 Rd8 Rf6 Nd6 Rff4 Nf5 Qef6
1R2K2B/2N1Rb1n/2PN4/7b/NrQNrknb/q4nqQ/N1pqQ3/2b5 w - - 0 1 illegal: No possible last move, all moves rejected
5Rb1/1B2rQ2/bRP1N2N/1q5Q/5qQn/1r2p1R1/1r1R2rq/b1RK1kn1 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 h4 d5 c4 Kd7 b4 Kd6 h5 Ke5 c5 Ke4 b6 Ke3 b5 a5 g7 e5 h6 e4 f6 a4 b7 g4 h7 a3 c6 d3 b6 g3 f7 d4 Qg4 a2 Bh3 f3 Qd7 g2 Qc7 f2+ Kd1 d2 Qd7 f1Q+ Kc2 Kf2 Bf5 d1B+ Kc1 d3 Rh3 d2+ Kb2 e3 Ne2 g1Q Qe8 Bb3 Be6 d1R Nd4 Nh6 g8Q Ra3 Nc3 Qdg5 Ncb5 Nd7 b8R Nf5 b7 Qh2 Nd6 Nh4 N6f5 Bg7 f8R Ne5 Rc1 a1R Bc4 Ba2 Kc2 Nef3 Ba6 Rb1 Qe4 Bf7 Rg3 Ng1 Qg4 Qf4 Ne6 Ba1 Ra8 Re1 b8R Rab3 Rb6 Qb5 Q8g7 Bb7 Rad8 Re2+ Kd1 R1b2 Rd2 Kf1 Q7g6 Rg8 h8Q Rg2 Qhh5 Rg7 Nh6 Bg8 Q6f5 Re7 Qff7 Bc8 Bb7 Nh3 Ba8 Ba6 Bb7 Ng1
1b1bbq1N/1N2NrP1/3RN1r1/1kn1BQ2/r1nK3p/q2b3B/q3Q3/B5N1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 Kf2 Kd7 d4 c5 e4 h5 g4 f5 b7 b3 e5 b2 b6 h3 d6 Kc6 d7 c4 d5+ Kb5 g5 h2 g6 f3 Ke3 f2 g7 f4+ Ke4 f3 e6 h4 d6 Ra4 e7 Rh6 e8Q Rg6 Kd5 Na6 b8B Nh6 b7 Be7 Qd3 Nf7 Qf5 Ne5 Kd4 Nc5 Bh3 f1B Nd2 b1Q Nb3 f2 Bb2 Qa2 Na5 Bd3 Ba1 f1R Bc7 Rf2 b8N Bb7 Nbc6 c3+ Nc4 Bf6 Ne7 c2 Bb8 Qa5 d8N+ Bc6 d7 c1B Nf7 Bf4 d8N Qb4 Nh8 Qba3 Ne6 Rf3 Qf8 Be8 Qg4 Rf2 Qe2 B6g5 Qf5 Bf6 Nd5 Bd8 Ne7 Bg3 Ke3 Rf1 Na5 Nc4+ Kd4 Rf3 Be5 Rf2 Bf6 Bb8 Nb7 Rf3 Be5 Rf1 Nf3 Rf2 Re1 h1Q Ng1 Qf3 Rd1 Qf4+ Qfe4 Qf7 Qf5 Qf8 Qf6 Bb1 Kd5 Na6 Qg5 Rf7 Qf5 Nc5 Rd4 Nd3 Ke4 Bc2 Rd6 Nc5+ Kd4 Bd3
b5k1/nQ1rb1r1/2bR1rR1/R1QP1n2/3qNN1R/1r3p2/3RrNK1/r5B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 Kf7 d4 g5 e5 c4 e6+ Kg7 h5 c3 d6 a4 d7 f3 e7 c2 e8R a3 b6 a2 b5 f4 b7 Nc6 b8Q Na7 b6 Ne7 b7 Nf5 h6+ Kg8 Re6 Be7 Be2 Rh7 Be3 c1R Nh3 Rc2 Nc3 g3+ Kg1 g4 Rg6+ Rg7 Ne4 g2 Qc1 f2+ Kh2 f1R d5 g1R Nhf2 Qb6 Bf3 Re2 Qc5 Rg3 d8N Qb4 Ne6 Qd4 Qbc7 Bd7 b8R+ Be8 Rb2 Bc6 Qd7 Rd8 Rd2 Ba8 Qb7 Rh3+ Kg2 Rd7 Rb1 a1R Rb6 Ra6 Rd6 Rfa1 Rb1 Rc6 Rb5 Rg3+ Kh2 Rb6 Ra5 Rb3 Bh1 f3 Nf4 Rgg1 Bg2 Rgf1 h7+ Kf8 Nh1 f2 h8R+ Kf7 Rh4 Kg8 Rb5 Ra6 Bf3 Rfa1 Ra5 f1B+ Nhf2 Rc6 Rgh6 Rcb6 Rdg6 Rf6 Kg1 Ree1 Kh1 Bb5+ Kh2 Bc6 Kg2 Rf7 Rd6 Rf8 Rhg6 Rf6 Nh1 Re2+ Bf2 Ree3 Bg1 Re2+ Nhf2 gxf3+
1kN1Q3/1N3r2/1r2n1Bn/1Q1p1RqQ/1Pn1n2R/5b1n/1R2K3/bRr1R2n w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 b4 a5 h4 e5 c4 d5 g7 Kd7 f6 Kc7 f7 e4 h5 e3 h6 d3 c5 d2+ Ke2 g4 c6 f3+ Kd3 g3 h7 e2 Nh3 e1N+ Ke3 a4 Bc4 f2 Rg1 f1N+ Ke2 a3 Nf4 g2 Bb3 a2 Nc3 Qg5 Bc4 Na6 b6+ Kb8 b7 Nf3 Na4 Ra7 Ne6 Ne5 Nd8 Nc7 Rb1 a1R Bd3 Nc4 Nb6 Bh3 Nc8 Ne6 Bg6 Nh6 g8Q Bg7 f8R Bd4 Rb2 Rc1 Rf5 Ra6 Qf7 Rf8 h8R Rb6 Qe8 Rf7 Rb1 Ba1 Rh1 Nfe3 Re1 Nd6 Rh7 Ne4 Rh8 Ng8 Rh4 g1N+ Kd3 Rf8 Qh5 Bg2 Rb2 Nh3 Ke2 d1N Rb1 Rc4 Rb2 Ndf2 Reb1 Kc7 b8R Rf7 Nb7 Rc1 Ra8 Qf4 Ra3 Nc4 Re3 Kb8 c7+ Ka8 Qb5 Nh1 Ncd6 Qg5 c8Q+ Ka7 Qce8 Nh6 Nc8+ Kb8 Kd3 Qd8 Re1 Qg5 Ke2 Bf3+
1b2qNQ1/nRn1rR2/4R1bP/nQp1Bb1k/B1QR4/r7/8/rn1KRr2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nc4 f3 Ne3 Rh5 Ng2 fxg2 Ra6 Rh3 Ra1 Rh8 h4 g5 d4 a5 e4 c5 b4 f5 d6 Kf7 h5 a4 b6 a3 e5 f4 d7 g4 h6 Kg6 b7 f3 d5 a2 b5 Rh7 e6 Ra3 b6 Ne7 d6 Na6 b8R Qe8 d8R Nc6 b7 Na7 e7 Nc7 Ne2 g1R d7 g2 Bb2 g3 Qa4 f2+ Kd1 Rg7 Rb1 a1N Nd4 Nb3 Qc4 Na5 Ne6 Rf7 Ra8 Bg7 b8R Be5 Nf8+ Kg5 Rh3 Rh1 Ra1 g1N Rb7 g2 Rf3 Ne2 Re3 Bg3 Re6 g1R Be5 Kh5 Rc1 N7c6 Ra6 Na7 Rf6 Rh7 Rf7 Bf4 Re6 Nc3+ Kc2 Rhg7 Re1 Nb1 Kd1 Bg3 Bd3 f1B Bc2 Bd3 Ba4 Bg6 Rff6 Qf7 e8Q Qg8 Rf7 Rf1 Qe7 Bh2 Qd6 Rhg1 Qc6 Rh7 Q6b5 Bg3 Rf4 Re7 Rd4 Bf4 Re8 Bg3 d8Q Bd7 Rf6 Bdf5 Qb8 Qe6 Rf7 Rh1 Red8 Qc6 R8d6 Qe8 Ra6 Rh2 Re6 Rha2 Bf6 Bd6 Be5 Ra1 Qc8 Na8 Qd8 Bb8 Qdd5 Nc7 Qg2 Bh7 Qg8 Bhg6
nk2K3/3p3N/b2rQ1N1/1q1P4/2R1b2B/2rbq1Q1/nr1QNBQ1/1r1b1Q2 w - - 0 1 legal: proof: g4 g5 a4 h5 c4 b5 f4 gxf4 b4 e5 a5 Bd6 cxb5 Bc5 Bh3 Bb6 axb6 e4 g5 Ne7 Ra3 Ng8 Bg4 hxg4 Rf3 exf3 Kf2 f5 h4 a5 d4 c5 e4 a4 d5 a3 b7 a2 b6 a1Q g6 c4 b5 c3 e5 c2 g7 Qe7 e6 Kd8 h5 Ra2 h6 Na6 b8B Qb2 h7 Nc7 b7 Na8 b6 Nf6 Be3 c1R+ Qd2 Rc5 Nh3 g3+ Kf1 g2+ Kf2 g1R g8Q+ Qe8 Nc3 Rb1 Rc1 Rc4 Ng5 Ne4+ Kg1 f2+ Kh2 f3 Kh3 f1B+ Kh4 f2 Bg3 f4 b8Q f3 b7 Qb3 Qf4 Be2 b8Q Bd1 Ne2 Nc3 Kg4 f1B Kf5 Bh3+ Kf6 f2 Bh4 Bg2 Qbe5 Bb7 e7+ Kc8 Qg7 Rg8 h8N Qb5 Nh7 Rab2 Qgg4 Bf3 Qg2 Na2 Qec3 Rg3 Ng6 Rc6+ Kg7 Ba6 Qce5 Qb4 Rc4 Qb5 Bc5 Rd6 Qee3 Qh8+ Kf7 Be4 e8Q+ Kc7 Qf5 Qc3 Qee6 Kb8 Ke8 Qd4 Qef4 Rc3 Qfg3 Qd3 Ng1 f1B Qf8 Bfe2 Qff1 Qf3 Bf2 B2d3 Ne2 Qe3
1NrR2r1/3pBn2/4Pq2/Kq3NbN/2Nb2r1/N2BQ3/1B2q3/Qr1kn2q w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 b4 f5 Bh6 Bb7 Ra6 Be4 Bc1 h5 Rg6 f4 Rg5 Bf5 gxf5 Bd6 Rg2 Bf8 Rg4 hxg4 Kd2 Ke7 h4 Kf6 e4 Ke5 c4 g5 c5 a5 b6 g3 f6 f2 f7 g4 b5 g2 c6 g3 h5 d3 Kc3 f3 h6 d2 c7 Kf4 c8Q Ke3 b7 a4 e5 a3 b6 a2 e6 a1Q+ Bb2 Be7 f8B Bg5 Kb4 Qf6 h7 Nh6 Be7 Nf7 Na3 Rg8 h8N Na6+ Ka5 Nc5+ Ba6 f1R b8N f2 b7 Nd3 Nc6 Qa2 b8N Ne1 Nh3 g1B Nd4 g2 Qa1 d1Q Qc5 Kd2 Nf5 Qc1 Qe5 Kd1 Ng6 Qc4 Qc3 Qe2 Nhf4 Qb1 Nh5 Qc1 Nc6 Rac8 Qe3 Qb1 Nb8 Qc1 Qa2 Qcc4 Rh3 Qh4 Rg3 Qh1 Bd3 Nc2 Rh3 Rh8 Rh4 Qg4 Qh3 Kd2 Nhf4 Rb1 Bb5 f1Q Qa1 Bd4 Qe3+ Kd1 Ne5 g1R Rh2 Rhf8 Rh8 Ne1 Nh5 Qc4 Rg8 Qge2 Rh8 Qcc6 Bd3 Rg4 Nec4 Qb7 Rg8 Qb3 Rg6 Rh8 Rg8 Qbb7 Rf8 Rg8 Rd8 Qb5+
B1NQ2r1/1B1B1nB1/b1N3p1/n4r2/Pq2n3/q5Q1/1BnRn2Q/1k1Krq2 w - - 0 1 illegal: No possible last move, all moves rejected
2R1RRB1/2Q2B2/Bn2n1bN/2qn2r1/2B1P3/1nqK1nBr/1p2Q3/nk3q2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 Bc5 g5 Bd4 Nc3 Be3 Ne4 f3 Nf6+ gxf6 g6 Bg5 hxg5 f5 Qc2 f4 Qa4+ Bd7 Qd1 Bc8 e4 Kd7 a4 Kd6 d4 b5 Kd2 c5 g7 f5 g6 h5 a5 h4 a6 f2 a7 b3 Ke2 c4 Rb1 b4 Ra1 c3 Qc2 b2 Qd1 b1N Rh2 f3+ Kd3 c2 Qd2 f4 Ra2 h3 Ra3 b3 Qe3 b2 Qd2 Bf5 Rh1 h2 Qe1 Qe7 Ra6+ Nc6 Nh3 Nf6 g8B Nc3 g7 Bg6 Ra1 Nd7 Bh7 Nd8 g8B Ne6 Ng5 Nb6 Bf7 Rag8 Be2 f1Q a8B f2 Ra6 f3 Bb7 Qh3 Qd2 f1N Ra8 Ne3 Rf8 f2 Ba6 f1N Re8 Rg7 Bhg8 Qc7 Qd1 Nd2 Rf1 Nf3 Bd2 h1Q Be1 Qf5 Bg3+ Qe5 Rf2 Rh3 Bf1 Qc5 Qe2 Nec4 Rc8 Ncd2 Bc4 Nb3 Re8 Kd7 d6 Kc6 d7 Ncd5 d8R Na1 Rc8+ Qc7 Ba2 Kb5 Bc4+ Ka4 Ba6 Nc3 d5 Kb3 d6 Ka2 d7 Ncd5 d8Q Q7c6 Qc7 Kb1 Nh7 Qg2 Nf6 Qg1 Ng4 Qh1 Bg2 Qf1 Nh6 Nh2 Kd2 c1N Bf3 Ncb3+ Kd3 Bh5 Bg4 Rg5 Rf6 Bg6 Rf4 Nf8 Bge6 Nf3 Rf5 Nf6 Bec4 Ne6 Re5 Nfd5 Rf8 Nd8 Ree8 Ne6 Qd6 Qc7 Qd7 Qe5 Qc7 Qc3#
q2nr3/BQQB2kb/R1PK2r1/qq5r/QR1R3p/r3r3/2r5/n1N1Q1Q1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Nd2 e4 Ndf3 exf3 hxg5 Qc7 Bh3 Qb6 Bf1 Qd8 Kf2 Kf8 e4 a5 c4 d5 b4 f5 e5 h5 c5 d3 e6 a4 e7+ Kg7 e8R d2 b6 d4 b7 a3 c6 a2 b5 h4 b6 d3 Qa4 d1Q Re6 d2 Rh2 Nd7 b8Q Rh5 b7 Qa5 Re3 Nc5 Rh1 Nh6 Qc7+ Nf7 b8Q Nb3 Rb1 a1R Rh3 Ra3 Ne2 Na1 Rb4 Be6 Qba7 Re8 Qab7 Bb3 Rc3 Bc2 Rd3 Qa8 Rdd4 Qe1+ Kg1 d1Q Be3 f2+ Kg2 Qd3 Kf3 Qb5 Nc1 Bd3 Bg2 f1R+ Bf2 Qc3 Rh1 Rfe1 Bh3 R1e2 Rg1 Rc2 Rd1 Kg8 g7 Nd8 Rf1 Kh7 g6+ Kh6 g8Q Qe1 Rb3 Qea5 g7 Kg6 Qe6+ Kh7 Qe1 Kh6 Kg2 f3+ Kh2 f4 g8Q Be4 Bd7 Bh7 Kh3 Re3 Bg1 f2+ Kg4 f3 Kf4 Re8 Rbb4 Rae3 Qe6+ Kg7 Qd1 Ra3 Re1 f1R Re2 Rcc3 Ra2 Rf2 Qee1 Rfc2 Be3 f2 Qg4+ Kf8 Qgg1 f1R+ Bf2 Q5a7 Rdc4 Rab3 Qaa5 Rh3 Qa3 Rbg3 Qb3 Qab6 Ra6 Q6a5 Qa4 Rg6 Re4 Ra3 Rec4 Ne6+ Ke4 Kg7 Ba7 Rff5 Rd4 Rff3 Rd5 Rh6 Ke5 Rh5+ Kd6 Rfe3 Rdd4 Nd8+
qb3r1b/NP4Rb/1BbN3R/r2b1pR1/Q1Q1NKb1/2r5/R2R1q2/2n3k1 w - - 0 1 legal: proof: f4 e5 g4 b5 d4 c5 a4 cxd4 axb5 f5 g5 Nc6 Bh3 Nb4 Bg4 Nd5 Kd2 exf4 Ke1 Ndf6 gxf6 h5 Ra4 hxg4 Ra6 Rh4 Ra1 Rh8 Kf2 Kf7 b4 Kg6 c4 Kg5 e4 Kh4 h3 a5 b6 d5 b7 g5 b8N f3 b5 g3+ Kf1 g4 b6 g2+ Kf2 a4 f7 d3 Ke3 Kg3 e5 f2 b7 f1B h4 d2 h5 a3 e6 a2 e7 Nf6 e8Q Bd6 f8R Ra5 h6 Nh5 h7 Bd7 c5 Bc6 Qa4 d1B Nd2 Bf3 Qf7 Bc4 Nb3 Nf4 Nh3 g1R Nd2 Kg2 Rg8 g3 Ng5 Ne2 Rg7 Rf8 h8R Rf1 Bb2 Nc1 R1h5 Kg1 Nge4 g2 Rhg5 Qe8 Be5 d4+ Kf4 d3 Rh6 Bb3 Qc7 Bg8 Nc4 d2 Qf7 Bc7 Ncd6 d1B Qfc4 Bh7 Bd4+ Rf2 Be3 Bd5 Nc6 Qa8 Na7 Bb8 c6 Bg4+ Kg3 Bdf3 c7 Bc6 c8R Bd5 Bf4 Rc2 Rd8 Rc3 Be5 Bc6 Kf4 Bd5 Bf6 Bc6 Rdd7 Bd5 Bd8 Bc6 Rb1 a1B Rb2 Bd5 Ra2 Bc6 Nf2 Bfd5 Bb6 Rd3 Rge7 Bh8 Ree2 Rc3 Ne4+ Kf1 Rc7 g1Q Rcg7 Qc5 Rec2+ Kg1 Rd2 Qf2+
1R1q4/Q2Bbq2/nn1B2k1/K1Q1p3/1r2bR2/q1q1b1PQ/3QNQ2/nbB5 w - - 0 1 legal: proof: a4 a5 e4 c5 f4 f5 d4 b5 axb5 cxd4 g3 Ra6 Nc3 Rg6 h3 Rg4 hxg4 fxe4 f5 g6 Nce2 g5 Nf4 gxf4 Kd2 Kf7 b4 e5 c4 d5 b6 h5 b7 f3 g5 h4 f6 f2 c5 e3+ Kc2 d3+ Kc3 h3 c6 e2 c7 e1B+ Bd2 h2 b5 a4 b6 d4+ Kc4 a3 Kb5 a2 Qf3 Ne7 Bc1 d2 Rb1 a1N Ka5 d3 Ne2 Nd5 Bh3 Na6 b8B f1Q b7 Rh4 Qf5 Qf2 Rf1 h1B Rb2 Be7 g6+ Kg8 f7+ Kg7 Rb4 d1Q Qh5 Kf6 g7 d2 g8Q Qc2 Qhg4 Qd6 Qd8 Bf5 c8Q d1Q Qd4 Qcc6 f8Q+ Kg6 Qdc7 Qb3 Qd2 Qcc3 Qc5 Bb1 Bc7 Re4 b8Q Qd8 Qba7 Qf6 Qe6 Bf2 Bg4 Be3 Qd7 Qcc4 Rb8 Nb6 Bd6 Qg7 Qf3 Qgf7 Qg2 Qcd3 Rf4 Rb4 Qf2 Be4 Bh3 Qdc3 Qg4+ Kh7 Qh5+ Kg7 Bd7 Qbb2 Qhh2 Kg6 Qh3 Qba3+
1bk1BnQ1/2nN1n1p/nn3Rqr/B7/2P5/bbQ2N2/2Q1KN2/Q2Q1nb1 w - - 0 1 legal: proof: e4 g5 f4 b5 a4 a5 axb5 f6 d4 c6 h4 Bh6 g4 Bf8 b4 Ra7 d5 cxd5 f5 Rc7 Ra3 Rb7 Rf3 d4 Rf4 gxf4 g5 Rb6 e5 fxe5 h5 Rg6 hxg6 e4 f6 d5 f7+ Kd7 b6 e5 c3 d3 g7 a4 b5 a3 b7 f3 b6 d4 g6 e3 Qb3 a2 Qa3 a1B Qa7 e2 Qa6 d2+ Kf2 e1N Ba3 d1N+ Kg3 e4 Be7 e3 Qa5 f2 Qa2 d3 Bg2 f1N+ Kg4 e2 Rh6 d2 Ba3 Nd3 Kf3 e1B Bb4 Nf6 g8Q Na6 b8Q Bf2 g7 Nde3 b7 d1N Qa8 N1b2 b8Q Ne5+ Ke2 Na4 Ba5 Nb6 Qc2 Qe8 Nh3 Ba3 Nd2 Ned5 Nf3 Bg1 Nf2 Ndc7 f8N+ Kd8 Qbb7 Nfd7 Qc6 Qg6 Qgb3 Nf7 g8Q B1b2 Bh1 Bd6 Qcd5 Bba3 Qdd1 Be5 Qa7 Bb7 Qbb2 Kc8 c4 Be4 Qcc3 Bc2 Qbb1 Bb3 Qbc2 Nb5 Qa8+ Bb8 Bg2 Nbc7 Qa7 Qf5 Rf6 Qg6 Qa8 Ndc5 Bh3+ N5e6 Nd7+ Nf8 Bg4 Bc1 Bh5 Ba3 Qg7 Rg8 Qh8 Rg7 Qg8 Qg3 Qa7 Rg6 Qa8 Rh6 Qa7 Nd8 Be8 Qg6 Qa8 Nf7 Qa7 Nba8 Qad4 Nb6 Qda1 Ba7 Qdd1 Bb8
b2qq1b1/Br1rbBB1/Q2Q1n2/1q1NQ3/6K1/1PnB3B/1pp1N3/R3r2k w - - 0 1 legal: proof: e4 a5 h4 g5 c4 d5 cxd5 f5 exf5 gxh4 b3 a4 Qc2 a3 Qc3 Nd7 Qb2 Nb8 Ke2 axb2 a4 b5 a5 Bh6 Ke1 Bf8 Ra4 bxa4 Ke2 Kf7 Kf3 Kf6 g4 Kg5 f6 h5 a6 e5 d6 c5 f7 c4 a7 a3 d7 c3 Be2 a2 Bd3 a1R Ne2 c2 Nbc3 h3 Nd5 Kh4 g5 h2 g6 Kh3 g7 Be7 f8Q h4 Qf4 Nf6 g8B Ne4 Bf7 Nc3 Qh6 Rb1 Qa6 e4+ Kf4 Kg2 Kg4 e3 f4 h3 f5 Bb7 f6 Rh7 Rf1 h1B Re1 Qf8 d8Q h2 Qc7 Nd7 Qe5 Rb8 a8B Bc8 Bc6 Rb7 Bcb5 Qe8 Bf5 Qh8 d4 Qd8 Bbd3 Ra1 Bd2 Rb1 Rf1 Re1 B5e6 Nb1 Ba5 Nc3 Bb6 Rg7+ Bfg6 Rh7 f7 Rg7 f8B Nf6+ Kf5 Bd7 Bf7 Bb5 Ba7 Bc4 Nc1 Rh7 Bg7 e2 Kg5 Rd1 Bd7 e1Q Kf5 Qe3 Ne2 Re1 Bc8 Qh3+ Kf4 Qhd7 Kg5 Q7e8 Rg1+ Kf2 Bh3 Be4 Kf4 h1Q Kg5 Qg2+ Kf4 Qf1 Kg5 Ng8+ Kg4 Rd7 Rh1 Nf6+ Kf4 Rh6 Nc7 Nh5+ Kg4 Rb1 d5+ Rb6 d6 Qc8 Nc1 Rd8+ d7 Ba8 Bfg6 Bg8 Bdf5 Qb5 Nd5 Qb8 Bf7 Nf6+ Kf4 Qc7 Ne2 Ra1 Bd3 Qc8 Bhe6 Kg2 Rg1+ Kh2 Bh3 Rb7 Rb1 Qb8 Rd1 Rc8 d8Q Rcc7 Qd7 Qbd8 Qdd6 Rd7 Re1 Rd1 Rf1 Rd2 Ra1 Rd1 Kf3+ Kh1 Kg3 Re1 Kh4 Nh7+ Kg4 Nf6+
5q2/krQR1Qn1/3n1K2/P7/qB2BBpB/R1p2b2/rqB3b1/2NbR2n w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qc2 f3 Kd1 f2 Qb3 Kd7 Kc2 Ra6 Kb2 Ra3 Qd1 Ra8 Kc2 Ke8 Nf3 h5 Na3 f5 Ng1 f4 Nc4 f3 Ne5 Bd6 Ng4 Bf4 gxf4 hxg4 Kd3 Kd7 Kd4 b5 Ke5 g5 h4 c5 d4 Kc7 e4 Kb6 a4 c4 d6 b3 f5 g3 d7 g4 h5 b2 d5 b1Q h6 g2 h7 c3 f6 b4 d6 b3 f7 b2 f8B Ne7 Ne2 g1Q Bg2 f1B Ra3 f2 Kf6 Na6 e5 Ka7 e6 Nc7 Be4 Bg2 Qf1 Nb5 Bf4 Nf5+ e7 Bb7 Nc1 Ng7 a5 Rb8 Qc4 f1N Qc7 Ng3 Bc2 Qc5 Re1 Qe8 d8B Nh1 d7 Nd6 Be4 Qa2 Bc2 b1B Be4 Qeh5 e8B Bc2 B8g6 Bd1 Bc2 Qf2 Bge4 Qhc5 Bde7 Qac4 d8R Qa4 Rd7 Qcb5 Bd8 Qb2 Bfe7 Re8 h8Q Bgf3 Qh3 Rh8 Qg2 Rh2 Qf1 Qc5 Qc4 Nde8+ Kg6 Qbb6+ Bc6 Bd5 Bf5 Ra2 Bc2 Bg2 Qf7 Qb2 Bh4 Qf8 Bde7 Qa1 Bed6 Qb2 Bb4 Nd6 Kf6 Ka8 Bb5 Bbf3 Bc6+ Rb7 B6e4 Ka7
B2B1kb1/N3b3/3Npn2/3NPQb1/3q1q1B/1Krn4/pR3r1N/2Qnq1N1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 b4 h5 a4 f5 g4 fxg4 Ra3 h4 Rg3 hxg3 axb5 c5 Bb2 cxb4 Ba3 Kd7 Bc1 Ke8 f4 a5 h4 g5 e4 g2 d4 e6 Kd2 a4 Kc2 g3 d6 g4 b6 a3 d5 a2 f5 Nd7 h5 Ngf6 b7 Kf7 b8N Nh7 h6 Rg8 e5 Ba6 f6 Be7 Bg5 Qf8 Qc1 Nc5 d7 Nd3 Nc6 Rc8 d8B b3+ Kc3 b2 d6 Rh8 Nd2 b1N+ Kb3 Nc3 d7 Nd1 Nb4 Kg8 Nd5 Rc3+ Ka4 Qf7 Rh2 Kf8 Ndf3 Bb7 Bh4 Ba8 Nh3 g1B Rb2 g2 Nh2 Be3 Ng1 g3 Be2 Bg5 Bf3 Qg6 f7 Nf6 h7 Qf5 Be4 Rg8 h8N Qf4 Bc7 Rg7 d8N Rg6 Nc6 Rh6 Nh3 g1Q Na7 g2 Bd8 Qe1 Ng1 Rh7 Bg3 Rh3 Bh4 Rc2 Kb3 Rf2 Ne2 g1Q Bh1 Qgg3 Ng1 Qge3 Bg2 Bc6 Bf3 Be8 Bg2 Qed4 Bf3 Kg7 f8Q+ Kh7 Bg2 Bf7 Bh1 Bg8 Nf7 Rg3 Nd6 Kh8 Qf7 Rgf3 Qh5+ Kg7 Qh7+ Kf8 Qf5 Rf1 Ne3 R3f2 Ba8 Rc2 Nd5 Rff2 Ne8 Rc4 Nd6 Rc3+
6b1/Q2q4/1B2bp1b/2N1B1Q1/1Rnr1BN1/N4P1r/1KnBpb2/n2bB1k1 w - - 0 1 legal: proof: b4 b5 e4 d5 exd5 g5 a3 g4 a4 g3 axb5 c5 Qh5 cxb4 Qe2 Nc6 Qd1 Nb8 f3 Bb7 Ra3 Ba6 Re3 Bc8 Re2 Bd7 Rf2 gxf2+ Ke2 Bc8 g4 h5 g5 Qb6 Bh3 Qd8 Bg4 hxg4 Kd3 Kd7 h4 Kd6 c4 Ke5 Kc2 Kf4 d4+ Kg3 b6 Kg2 d6 f1B g6 e5 d5 a5 d7 a4 h5 b3+ Kb2 e4 g7 e3 d6 e2 b7 g3 h6 Qh4 d8B Nf6 g8Q Ne8 d7 Qe7 h7 Nc6 b8B Bh6 c5 Nb4 c6 Nd6 c7 Nc2 Qg5 Bb7 c8N Bd5 Qd4 a3+ Kc3 a2 Ba5 a1N d8B b2 Bd2 Qa7 Nb6 Nc4 Rh4 Qd7 Na3 b1B Bbf4 Ra6 Na4 Rd6 Bab6 Ba2 Qc5 Bb3 Nh3 Kh1 Nf2+ Kg1 Qe3 Bh3 Nc5 g2 Bf6 Bde6 B6e5 Rd4 Be1 Bd5 Bd2 Bhe6 Ng4+ Kf1 Be1 g1B Bd2 Bf2 Be1 Rd8 h8B Kg1 Bhg7 f6 Bf8 Nd6 Kb2 Bdc4 Be7 Rh8 Bed8 Bcd5 Bba5 Bg8 Bad2 Bde6 Bb6 Nb4 Qe4 Bd1 Qb7 Nbc2 Qa7 Bg7 Rh7 Bf8 Re7 Rh3 Re8 Bh6 Rb8 Bh4 Bc7 Bg3 Rb4 Bf2 Bb6 Nc4+
1QR1R3/qR2Kp1R/7n/1n3qqN/Q3R1qq/1b1kP3/Npr4b/3N1rB1 w - - 0 1 illegal: No possible last move, all moves rejected
KR2R3/N4q2/4Rb1Q/qRr1bP1r/4N2N/2Qp1npq/2n5/1b1RbkB1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Ke2 Kf7 Kd3 e5 Ke4 a5 Kd5 e4 h4 e3 b4 g3 c4 d3 h5 a4 h6 f3 h7 a3 b6 e2 g6+ Kf6 b5 e1B g7 a2 c5 d2 b7 Kg5 b6 Kg4 c6 Ra5+ Kd4 d5 c7 Nc6+ Kd3 d4 Kc4 d3 b8R Nb4 b7 Nc2 Rh6 Nf6 g8R+ Bg7 Nc3 Nd7 Re8 Be5 Ne4 Bf6 Qe2 d1Q Qh2 f2 Nf3 f1Q Be3 Qh3 Nh4 Qf3 Rd1 a1B Qh1 Bae5 Bg1 Kf4 Qh2 Qh5 Qd2+ Kg4 Qb4 Rd5 Qc3 Qf7 Rg6+ Bg5 Rge6 Bgf6 Bc5 Kf4 Kb5 Kg4 Ka6 Kf4 Bd6 Ke3 Ka7 Ke2 Bc5 Kf1 Bg1 Rc5 Ka8 Bf4 Be3 Ne5 Bg1 Bd7 c8N Ba4 Na7 Qa5 Qa1 Nf3 Qc3 Rf8 h8Q B4e5 Qh6 Rh8 Rbd8 Bb3 b8R Ba2 Rb5 Bb1 Rdb8 Rh7 Qg5 Rh5 Qg6 Qe7 Qh6 Qf7
5N2/2qnN1k1/P1n1B1Nr/1N1K1rQ1/1Q1b1p2/b1pBqb1Q/5R2/r1N1b3 w - - 0 1 illegal: No possible last move
4q3/2q4K/pNkn1b1Q/6Pn/N1p4Q/NR2N2b/r1n1r2R/1bN2BQb w - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 h4 g5 b3 gxh4 Ba3 Qd7 Bc5 Qd8 Be3 d4 f4 exf4 c3 fxe3 cxd4 Bh3 d5 Bc8 Ke2 Kd7 Kf3 c5 Kf4 h5 Kf5 a6 d4 c4 g4 e2 d6 e1Q d5 f6 Kg6 h3 b6 f5 b7 h2 b4 h4 b5 f4 b6 h3 e5 f3 e6+ Ke8 d7+ Ke7 Na3 Kd6 e7 f2 e8N+ Kc5 d6 Qe3 Nc7 Rh5 Rb1 Nh6 Ne2 Bg7 Kh7 Qee8 Rb3 Nc6 b8N Nd4 b7 Bf6 Nd5 Qc7 Nc1 Nc2 Ne3 Rf5 g5 Nf7 d8N Ra7 d7 Nd6 Qg4 Rd5 Qg1 Rd2 Nb5 Ra8 Ne6+ Kb6 Nc5 Ra7 Bd3 f1N Be2 Ng3 Bf1 Nh5 Na4+ Ka5 Na3 Rg2 Kh6 Ra8 d8Q Re2 Nd7 Rb8 Ndb6 Bf5 Rc3 Bd3 Nb1 Kb5 Rb3+ Kc6 Qe7 Rd8 b8Q Rd7 Qg7 Re7 Ng4 Rf2 Qa7 Ree2 Ne3 Bh7 Qg3 Be4 Qh4 Bg2 Rg1 h1B Na3 h2 Kh7 Bh3 Rg4 Bd5 Rg2 h1B Rh2 Rg2 Qb8 Bde6 Qc8 Bd5 Qcg4 Rgf2 Qg1 Bde4+ Kh6 Ne1 Qh7 Bb1 Qg6 Ra2 Qg7 Nc2 Kh7 Nf7 Qg6 Re2 Qh6 Nd6+
1Q2Q1b1/1b1p2KB/rb1n3Q/R1NpPr1q/b7/NNN4n/1k1B4/2N1q1r1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 b5 a4 c6 d5 cxd5 Ra2 Ba6 Rb2 Bc5 axb5 Bd6 b6 Bc8 b5 Bf8 Rb4 axb4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 e4 g5 c4 f3 h4 b3 b7 f6 h6 f5+ Kh5 b2 Kg6 f2 h5 f4 h7 f3 c5 g4 h6 g3 b6 g2 c6 Ra5 c7 Ra2 Qe1 Kd4 Na3 b1B Bd2 Na6 b8N Qh4 b7 Nc5 Bd3 f1Q Na6 f2 b8N Bb7 c8N Ne6 Nd6 Ng5 Nc5 Nh3 Nba6 Nf6 e5 Ne4 Qc1 Be7 Kg7 Rf8 h8Q Qe1 h7 Rf5 Qb8 f1B h8Q Bd8 Qe8 Bb6 Bc2 Bb5 Bd3 Ng3 Nde4 Qh5 Nc3 Ne4 Rh2 Nd6 Be4 Rf4 Bh7 Rf5 Nb3+ Kd3 Nge2 Ba4 Nc2 Kc4 Nac5 g1R+ Rg2 Bac6 Rg6 Ra6 Na3+ Kb4 Qd1 Ba4 Nec1 Rf8 Rg2 Bf5 Qc2 Be6 Qcg6 Bg8 Qh6 Rf3 Bg5 Rf5 Ra2 Bac6 Nab5 Kc4 Ra5 Kb4 Na3 Bb5 Qhe6 Ba4 Qh6 Rh1 Bd2 Rhf1 Nc4 Rh1 Ne3 Ka3 Nc2+ Kb2 Na3 Rg1+
8/n1pqQ1Qn/2pnP2K/NNR1Q1r1/kb1B2B1/n2q1br1/3b3B/BB6 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 Ke7 c5 Ke8 c6 dxc6 f4 exf4 h4 g5 hxg5 Ke7 b4 Bh6 e4 Ke8 Ra3 Bf8 Re3 fxe3 Ke2 Kd7 Kf3 a5 Kg4 f5+ Kh5 h6 d4 e2 g4 e1Q g6 f4 e5 f3 e6+ Kd6 b6 f2 d5 a4 b5 Kc5 b7 Kb4 g7 a3 d6 a2 d7 a1B b6 Bf6 g5 Qd2 g6 Qe8 d8B Qd3 Na3 Bc3 Be2 f1N Bf6 Ne3 Bg4 Ne7 g8B Nd7 b8Q Ba6 b7 Nc8 Ne2 Na7 Nd4 Nc4 Qe1 Bd2 Nab5 Ka4 Qe5 Na3 Nb3 Bfb4 Na5 Nf8 Bh7 Rg8 Qd8 Qed7 g7 Rc8 Be4 Nh7 Qe7 Rb8 Kg6 h5 Rf1 h4 Rf5 Rbd8 b8B h3 Rg5 h2 Kh6 h1N Bb2 Qb3 Ba1 Nf2 Bb1 Ne4 Bd4 Qbd5 Bg1 Nd6 Bh2 Bdc3 Rh5 Qd3 Rf5 Bd2+ Rg5 Rge8 g8Q Rc8 Qgg7 Rg8 Qe1 Rcf8 Ba1 Rf3 Qe3 Rg3 Rc5 Rf8 Qf4 Rf5 Qe3 Rg5 Qee5 Nac8 Na7 Bc4 Nb5 Bd5 Ba7 Bf3 Rc3 Qe2 Bd4 Qd3 Rc5 Na7
3N4/Pr1pQN2/NK5B/N3qq2/1nq2RbR/rr3pQ1/2nr2bQ/2k4N w - - 0 1 legal: proof: f4 a5 d4 e5 fxe5 c5 b4 cxd4 g3 axb4 Na3 f5 Qd2 h5 Nb1 f4 Bh3 f3 Qd1 Be7 Be6 Bg5 Bg4 Bf4 gxf4 hxg4 Kf2 Ke7 e4 Ke6 h4 b5 c4 g5 a4 d3 Ke3 d2 Kd4 g3 Kc5 b3 a5 b4 h5 g2 f5+ Ke7 h6 b2 e6 Kf6 e7 Ke5 e8N Kf4 a6 Ke3 h7 b3 f6 g4 e5 g3 e6 Nh6 e7 Ng4 f7 Nc6 f8N Nb4 Nh3 g1Q Ra4 g2 Nc7 Qe1 Na3 g1R Kb6 b1Q c5 b2 c6 Qf5 Nf2 b1B Ne6 Qg8 Nd8 Qc4 Qc2 Ke2 e8Q+ Ne3 Qe5 Rf8 Qce4 d1R h8Q Rd2 Rh4 Rg4 Nh1 Kd1 Qh7 Nec2 Qg3 Bb7 Qe6 Qee5 Qee7 Rgd4 Rf4 R4d3 Qhh2 Rb3 Rh4 Re8 a7 Ba6 Rf4 Rc8 Rh4 Bb5 Na6 Rc7 Rf4 Qcf7 Rh4 Bf1 Nc4 Bg2 Na5 Qc4 Rf4 Rh8 Rh4 Rh6 Rf4 Rhd6 Rh4 R2d3 Bh6 Ra3 Rf4 Rdb3 Rh4 Rd2 Rf4 Rc8 c7 Kc1 Rh4 Ra8 c8N Ba2 Nd6 Rc8 Rh5 Rc7 Rh4 Qcd4+ Nc5 Nc6+ Rb4 Qf7 Nc8 Rb1 Bf8 Be6 Nd6 Bg4 Bg7 Rbb3 Bh6 Qff5 N6f7 Qde4 Ka6 Q4d5 Rf4 N6b4+ Kb6 Qc4 Na6 Rb7+
2BBq2B/2qnN3/3Q1KQ1/1r3B1r/2P1pB1R/r1n5/n2b1Nnp/1N2n1k1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 b4 Nh6 g4 Ng8 h3 Nc6 Ra3 Nb8 Rf3 Nf6 Rf2 Ng8 Rf4 gxf4 Ke2 Bb7 Ke1 Bd5 g5 Bc4 Na3 Be2 Nb1 Bg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 Kf2 Kf7 c4 h5 f6 Ke6 f7 Ke5 g6 d5 g7 a5 b6 h4 b5 f3 b7 h3 Kg3 f2 g5 a4 Kg4 h2 b6 e3 g6 Ke4 Kg5 e5+ Kg4 e2 Be3 e1N Qc1 a3 Nf3 a2 Bf4 a1Q Bg5 d3 Qd2 d4 Ng1 Qc7 Qc2 Qa4 Bh3 f1N Bd8 Ke3 Kf5 Nc6 b8Q d2 b7 Nf6 g8N Kf2 g7 d3 Ne7 Nd7 g8B Nb4 Bh7 Bh6 f8B Na2 Bg7 Ne3+ Ke6 Ra7 B7f5 N3g2 Bf6 Rh7 Bh8 Ra5 Bhg4 Rb5 Bh3 Be3 Bhg4 Rh5 Nh3+ Kg3 Rf1 d1N Rf4 e4 Nf2 d2 Bh3 Qa8 Rh4 Ndc3 Qd3 d1R Qd6+ Kf3 Qg3+ Ke2 Qg6 Kf1 Kf7 Kg1 Bhg4 Qc5 Qbd6 Qc7 b8B Rd3 Bh3 Bd2 Bhg4 Ne5+ Kf6 Qac6 Bc8 Qe8 Bgd7 Ne2 Bf5 Ra3 Ba7 Nec3 Be3 Qa5 Bg5 Qc7 Bf4 Nd7+
5b2/R1qN2bk/6Nn/2b2npN/3Qb3/Kpqb1Q2/1r1nBPQQ/5QR1 w - - 0 1 illegal: No possible last move, all moves rejected
1Qr1b3/bq1bbNn1/B1N2RRp/5Nb1/1PQ1Rpn1/5k1K/N6n/q1N5 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 h4 f6 e4 Ra6 f4 f5 h5 fxe4 f5 c5 Bf4 gxf4 g5 Rg6 hxg6 cxd4 Kf2 d5 Kg2 Kd7 b4 Kd6 c4 Ke5 b6 d3 c5 d2 b7 d4 c6 h6 f6 e3 f7 Ke4 c7 e5 g7 d3 g6 a4 Rh3 a3 Qc1 d1Q Qc5 d2 Qc3 a2 Rg3 e2 Na3 e1B Qc1 Ne7 g8N Nbc6 b8N Bd7 c8R Bf2 g7 Ba7 Ne2 Qc7 Nb5 Nf5 Kh3 Be7 f8N Qb7 Rg6 Kf3 Ne6 e4 Re8 e3 Qc4 Ne5 Nd8 Ng4 Nc1 e2 Nf7 e1N Nc3 Qa4 Rf8 d1B Nc6 Qa5 Rb1 a1B N3a2 Ba4 Bd3 Bg5 Nge7 Baf6 g8Q Ng7 Nf5 Be7 Rb2 Qe5 Re2 Qa1 Re4 Be8 N7d6 Bd7 Rff6 Bb5 Qb8 Rc8 Nf7 Be8 Ncd8 Bbd7 Bf1 Nh2 Nc6 Ng2 Qe6 Ne3 Ba6 Neg4 Qd5 Bb6 Qc4 Ba7
8/BrbkbK2/1B1p1q1r/1qn1Qpb1/7P/Q5RQ/B1qR2BN/1Br2b2 w - - 0 1 legal: proof: f4 e5 g4 b5 d4 c5 a4 cxd4 axb5 f5 g5 Na6 Nc3 Nc5 Nd5 Ne4 Ne7 exf4 Ng6 Nef6 gxf6 hxg6 Ra3 g5 Ra1 g4 Kd2 g5 Kd3 a5 Kc4 a4 Kd5 f3 b4 d3 c4 a3 e4 g3 h4 d2 f7+ Ke7 b6 g4 b7 a2 b8Q f2 e5 g2 c5 g3 b5 Ba6 b6 Rh6 c6 Bb7 e6 Qc7 Rh2 Qd8 Qg4 d1Q+ Bd3 f1R Qh3 Qe2 Nf3 g1B Be3 Ba6 b7 g2 c7 Ra7 c8B Qc7 Bb6 Be3 Re1 g1B Bb1 Qb2 Rd2 Bg5 Re3 a1Q Red3 Bd4 Nh2 Qcc2 Rg3 Rc1 Qf4 Qb4 b8B Rb7 B8a7 Be5 Qe3 Bc7 Qe1 Qh8 Qe5 Rb8 Bb7 Bf1 Ba8 Kd8 e7+ Kc8 Bc6 Rb7 e8B Bfd6 f8Q Qb5+ Kd4 Kd8 Bg2 Nf6 Qfe7+ Kc8 Bf7 Ne4 Bfa2 Ba3 Qb4 Kd8 Qa5 Bae7 Qa3 Nc5 Kd5 d6 Qf6 Ne4+ Ke6 Nc5+ Kf7 Kd7 Qe5 Qf6+
N3BqB1/1N1q3R/p4n1K/1B1N4/1rp1N2b/3b1k1n/PQ2b1Nq/1b2Qn2 w - - 0 1 legal: proof: c4 d5 f4 e5 b4 exf4 c5 c6 Na3 Qf6 Rb1 Qg5 Rb2 Qf6 Rc2 Qd6 b5 Qd7 bxc6 Qd8 Rc4 dxc4 g4 b5 Qc2 f5 Qb1 f3 Bb2 f4 Bc3 a6 Bf6 h6 Bg5 hxg5 Qd1 Ra7 Qa1 Rf7 Qd1 Rf5 gxf5 Qb6 Nc2 Qc7 Na3 Qd8 Kf2 Ke7 e4 Kf6 h4 Ke5 d4+ Kf6 d5 Ke5 c7 g6 h5 g4 f6 g5 f7 b4 h6 b3 h7 b2 d6 b1N c6 Qf6 d7 Qf5 d8N Nh6 Bg2 Nd2 Nb5 Qd7 Nd6 Be7 f8N Nf7 Nh3 Nf1 Nfe6 Rf8 N8b7 g3+ Kg1 g4 h8Q+ Bf6 Qe1 Ng5 Rh2 f2+ Kh1 f3 Nef4 Ne3 Nd5 f1B Nhf4 f2 Rh7 Be2 Qg7 Kd4 e5 f1B e6 Nh3 e7 Rg8 Bf3 g2+ Kh2 Bd3 Kg3 g1Q+ Bg2 Bfe2 e8B Qf1 Ne4 Bb1 Qh8 Rg5 Kh4 g3 Bf3 g2 Bfh5 g1Q Bhf7 Ke5 Ng2 Qh2 Bg8 Qf3 Qg7 Nf1 Qh8 Qa3 Qg7 Bed3 Qh8 Rg7+ Kh5 Qf8 Kh6 Bd8 Na5 Bb7 c8N Bh4 c7 Kf5 Ncb6 Kg4 c8B Kf3 Na8 Rg6+ Kh5 Rb6 Qb2 Rb4 Kg6 Bc6 Nb7 Ba4 Kh5 Bd1 Kg6 B1e2 Kh5 Qb5 Bcd7 Qa4 Bc6 Nd7 Bb5 Nf6+ Kg6 Qfd6 Kh6 Qd7 Qbc1 Qa5 Qb2 Qad8 Qd1 Q8e7 Qe1 Qf8+
1Q1nb3/n2PpQ1q/NNB5/3K3B/qnB4b/B3k1qN/1n1rp3/BR1b4 w - - 0 1 legal: proof: e4 g5 f4 b5 a4 d5 axb5 a5 g4 Bd7 b4 Na6 h4 Nb8 c4 Bc8 h5 Ra6 Ra3 Rc6 Rf3 dxc4 f5 Rg6 Rf4 gxf4 g5 f6 e5 fxe5 hxg6 e4 Ke2 Kd7 d4 Kd6 f6 Kd5 f7 h5 b6 c5 g7 h4 b7 a4 b5 c3 b6 a3 g6 f3+ Ke3 h3 Qa4 c2 Kf4 e3 Bd2 c1N Qa8 h2 Bc3 a2 Nd2 a1Q Ne2 f2 Qa3 c4 Kf3 Qc7 Qb3 Nh6 g8B Bg7 f8B+ Nf7 Ng1 Nc6 b8N Bf6 g7 Qa4 b7 Na7 Na6 Bh4 b8Q Nd3 Nh3 Nb2 Bb4 Bd7 Bg2 f1B Ba3 Be8 Rg1 Bd3 Rb1 h1Q Bh7 e2 g8B Bc2 Bg6 Rh6 Bg7 Bd1 Bh5 Rd6 Qa2 Bb3 Be5 c3 Nc4 c2 Bf6 c1N Nb6+ Kc6 Ke4 Nd8 Be5 Bd1 Qf7 Ncd3 Bgf3 Rd7 Bh8 Qg3 Be5 Qc2 d5+ Kb5 d6 Qa4+ Nb4 Kc5 Bc3 Rc7 d7 Rc6 Be5 Rd6 Bh8 Nc4 Ba1 Ncb2 Qg6 Qhh2 Bc4 Rd5 Qf7 Rd6 Kf5 Kd4 Na6 Ke3 Bh1 Ne1 Bc6 Rd2 Nf4 Qhh3+ Ke5 Ned3+ Kd5 Bg5 Bg4 Qh7 Nh3 Bh4 Bh5 Nb4+
n2RQN2/2q1n1b1/Q2K1pq1/pB3P2/1r3n1N/N4bN1/2n2k1B/N1Q2n1n w - - 0 1 legal: proof: e4 c5 b4 d5 g4 dxe4 g5 b6 a4 b5 axb5 cxb4 g6 h5 Ra6 e6 Na3 f6 Nb1 Kd7 Ra3 a5 Rg3 Ra7 Rg4 hxg4 Qf3 Ke8 Qd1 Rf7 gxf7+ Kd7 Ke2 Kd6 Ke3 Kc5 f4 g5 h4 e5 c4 g3 h5 g2 h6 g4 f5 b3 b6 b2 h7 g3 b7 Na6 b8Q Bg7 f8N Ne7 Na3 b1N Ne2 g1N d3 g2 Ng3 Rg8 h8N Qc7 Nhg6 Bb7 Nh4 Ne2 Qe8 Nd2 Qc2 Nf4 d4+ Kb6 d5 Kc5 Rh2 g1Q+ Rf2 Bc6 d6 Rh8 d7 Ba8 Nh5 Qg6 d8N Rh7 Ng3 Bb7 Nf3 Rh4 Nc6 Rg4 Nb4 Bd5 Rg2 Bc6 Bd3 Nf1+ Kf2 Bd5 Nh4 Kd4 c5 Bc6 Bb5 e3+ Ke1 e2 Kf2 Ba8 c6 e1N Qe2 Ned3+ Kf3 Nf2 Nbc2+ Kc5 Qd1 Nh1 Na1 Bb7 Qe1 Kd4 Rc2 Ba8 Rc4+ Kd3 Be3 Bb7 Bg1 Ba8 Qb1+ Kd2 Qc2+ Ke1 Ke4 Bb7 Qd3 Ba8 Bh2 Kf2 Rb4 Qd8 Qb3 Nc7 Qd1 Nfd5+ Kd3 Qb8 Rb3 Rb4 Qc1 Bb7 Rc3 Na8 Rc4 Qd8 Rd4 Nf4+ Kc3 Qc8 Rd8 Qb8 c7 Bd5 c8Q e4 Qa6 e3 Nc4 e2 Kd4 e1N Kc5 Bf3 Na3 Qb7 Kd6 Nc2 Kc5 Qa7+ Kd6 Qc7#
BqNq4/N1r1b2R/1P1b4/1p2R1Q1/1r1b1Kb1/b1n1N2Q/b2Np3/kN5R w - - 0 1 legal: proof: e4 f5 exf5 a5 c4 h5 g4 hxg4 b4 b5 c5 Nc6 Bb2 Ne5 Bd4 Nc4 Be3 axb4 Bd4 Nb6 cxb6 d6 Bc5 dxc5 Ke2 Kd7 Ke3 Kd6 h4 Ke5 a4 g5 h5 g3 f6 b3 f7 g4 f3 g2 d3 g3 h6 b2 a5 c4 h7 c5 a6 c3 a7 c4 Qd2 c2 d4+ Kd5 f4 c1B f5 e5 f6 c3 Rh3 c2 Nf3 e4 Kf4 g1B Bg2 Kc4 d5 Kb3 d6 e3 d7 Be7 f8N e2 f7 Bh2 Ng6 Nf6 f8R Ne4 Rf5 Nc3 Re5 Rb8 a8N Rb7 Qe3 Rc7 Ra7 Rg8 h8Q Rg7 Rb7 Ka2 Nfd2 Ka1 Qh4 Rh7 Qg5 Rh5 Bh1 g2+ Qeg3 g1B Rh4 Bd6 Ne7 Bd4 Be4 Bhg1 Rh1 Rh4+ Q3g4 B4c5 Bf3 Bgd4 Be4 Qe8 d8N Bd7 Ndc6 Qb8 Na7 Bf5 Na3 b1B Nec8 Ba2 Nb1 B1a3 Bd5 c1Q Bc6 Rf7 Nc7 Qd1 Nd5 Rc7 Ne3 Be7 Bd5 Bcd6 Bc6 Rh6 Q4h4 Bg4 Qh3 Rh7 Be4 Rc4 Bc6 Rb4 Rc7 Qb3 Bf3 Qg8 Ba8 Qd8 Rc6 B6c5 Rh6 Bed6 Rh4 Rc7 Rh6 Be7 Rh7 Bcd6
4nrN1/2P1ppQb/4B3/1KR1Bq2/NbN1b1nb/3nB3/2B2n2/Q1B3bk w - - 0 1 legal: proof: f4 h5 b4 c5 e4 d5 a4 g5 g4 gxf4 g5 a5 Ra3 b5 axb5 d4 Rg3 Ra7 Rg4 hxg4 Ne2 Rd7 Ng1 c4 d3 Rd5 exd5 cxd3 Kd2 Kd7 c4 Kd6 h4 Ke5 c5 Ke4 d6 f3 b6 a4 b5 f2 b7 a3 c6 a2 b6 a1B g6 g3 d7 g2 g7 Nh6 g8B Nf5 h5 Bg7 h6 Na6 b8N Nd6 b7 Ne8 Nf3 g1B Nc3+ Kf4 Bh3 Kg3 Be6 Kg2 Na4 f1B Ne5 Nb4 Nc4 Bf6 Bh7 Rf8 Rh5 Bh4 Rc5 Qa5 d8B Kh1 Nd7 Bg2 b8B Be4 Be5 Bb2 Bhf5 Ba3 h7 Bb7 h8Q Ba8 Bh3 Bh7 Bb6 Bb7 c7 Bbe4 Qg4 Qb5 Qgg7 Qa5 Kd1 d2 Ke2 d1N Bhf5 Ne3 Nf6 Ng4 Ng8 d3+ Kd2 Qb5 Kc3 d2 Kb3 d1N Bg6 Bb1 Bc2 Ndf2 Kc3 Nbd3 Kd4 Ne4+ Kd5 Qa5 Kc6 Nef2 Ba7 Bb4 Bb6 Qa7 Kb5 Qb7 Rd5 Qa8 Bbe3 Qd8 Rc5 Qd5 Bg3 Be4 Qa1 Bh7 Qhg7 Qf5 Be5 Ba2 Na3 Bd5 Nc4 Be4
1q2Q1KR/1q4q1/b4R2/2bk2bQ/N1RbR2p/BNP1p3/1Rn5/4rQrq w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 d4 cxd4 f5 g6 f6 Qb6 Nh3 Qc7 Ng1 Qd8 h4 Nh6 g4 Nf5 g5 Na6 Bh3 Nc5 Bg4 Nh6 Bf5 gxf5 g6 Ne6 Nf3 Ng5 hxg5 Ng8 Ng1 Qb6 Na3 Qc7 Nb1 Qd8 Kf2 h5 Kg3 e5 Kh4 a5 b4 d5 f7+ Ke7 b6 Ke6 b5 a4 b7 e3 b8Q a3 b6 e2 g7 e1B+ Kh3 a2 g6 d3 b7 f4 Na3 f3 Bb2 d2 Bc1 h4 Kg4 e4 Kf4 d4 Nb1 d3 Ne2 f2 Rf1 Nf6 Kg5 Bc5 g8R Kd5 g7 Ng4+ Kg6 Ne3 Re8 Rg8 Kh7 Ra6 f8Q Re6 Qbf4 Qe7 b8R Ba6 Qf3 Qb7 Nd4 Re7 Qde2 d1Q Nb3 d2 Ba3 Qc1 Q8f6 d1Q Qh5+ Re5 Qf4 Bd2 Qe1 Qb2 Nc3+ Kc6 Qff5 Qg4 Rc1 a1B Na4 Kd5 Re6 Qb1 Qf8 Qg5 Qfe8 Bad4 Qed1 Qge7 Re1 f1Q Rf6 Qf7 Re2 Qh1 Qf1 Qa8 Rb4 Qb8 c3 Qfc7 Rc4 Nc2 Rce1 Bg5 Ref2 Qcb7 Ree2 Qe1 R2f4 Qg3 Ref2 e3 Re4 Rf5 Rh2 Rf2 Rg2 Re2 Rgf2 Rf8 Rg2 Rf7 Kg8 Re1 Rd2 Nb4 Rb2 Nc2 Kh8 Qge5 g8R Rg7 Rgf8 Bh6 Rg8 Rg1 Rf8 Bg5 Kg8 Q7c8 Kh7 Qc6 Rh8 Qcb7+ Kg8 Qee7 Rfe6 Qec7 Rf6 Qg7#
1rB3BQ/2Q2b2/2bpp3/QnB1b3/1nR2RQ1/1K1n3P/N1q1Q3/bk2q2n w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 a4 b5 f5 c6 Nc3 Kf7 Nd5 Ra6 axb5 c5 g5 cxd4 Ne3 Rf6 gxf6 Ke8 Ng4 hxg4 Kd2 Kf7 b4 g5 c4 d3 Kc3 a4 b6 d2 b7 e6 h3 e3 c5 e2 b5 e1N b6 a3 c6 d6 c7 a2 Qe2 d1B Bb2 g3 Qh2 g4 Bd3 g2 Bf1 g3 Rb1 a1B Bd3 Bd7 c8B Nc6 b8Q Qc7 b7 Bg7 Qa7 Nh6 b8Q Bh5 Rc1 Nb4+ Kb3 Ng4 Qa5 Nf2 Ne2 g1N Bd4 g2 Nc3 Bc6 Na2 Ne2 Bc5 g1Q Rc4 Nc3 Qg2 Rf8 Qg4 Nb5 Qbb6 Qg3 Rf1 Nh1 Rff4 Qg1 Bc2 Ned3 Qb7 Qe1 Qe2 Ke8 f7+ Ke7 Qba7 Bge5 f6+ Kd8 Qb7 Re8 f8Q Bf7 Qh8 Rf8 Qb8 Rg8 Ba6+ Kd7 Qh4 Re8 Qhg4 Rg8 Qb7 Rb8 Qbb6 Bd5 Qa7 Kc6 Bc8 Bf3 Bb1 Kd5 Bc2 Nb2 Bh7 N2d3 Bg8 Be4 Bb6 Qc5 Qc7 Qcf2 Rc5+ Kd4 Ba7 Qe3 Bb6 Q3c1 Ba7 Qcd2 Rc4+ Kd5 Qgf3 Bh5 Rc5+ Kd4 f7 Qdc1 Qg4 Qcd2 f8Q Bf7 Qh6 Qdc1 Qd1 Ke3 Qhh4 Bc6 Qh8 Qcd2 Bb6 Qg2 Qdf3+ Kd2 Rcc4 Qgf2 Bc5 Qh2 Nc3 Kc1 Na2+ Kb1 Qe3 Qhd2 Qee2 Qc2+
1n1K2k1/bpb2NB1/1Nb2pB1/4Q1q1/3bB1r1/1R2q1n1/Q3P1B1/B2n2Nn w - - 0 1 legal: proof: f4 a5 g4 e5 fxe5 c5 d4 cxd4 b4 axb4 g5 f6 g6 Qa5 Qd2 Qc7 Qd1 Qd8 a4 h5 Bd2 Ra6 Bg5 Re6 Bc1 Re7 Ra3 Rf7 gxf7+ Ke7 Rg3 Ke6 Rg5 Ke7 Rg4 hxg4 Kd2 g5 Kd3 d5 h4 b3 c4 b2 e6 g3 c5 g4 h5 g2 c6 g3 h6 Rh7 c7 Nd7 a5 Rg7 h7 Nb8 h8N Bd7 c8B Qb6 a6 Nh6 a7 Bc6 a8Q Nf5 Nd2 Rg4 Qa2 b1Q+ Qdc2 Q1b5+ Nc4 Q5c5 Bb2 Qa7 Ba1 Qb5 Nf3 g1B Rh3 g2 Qc3 Ng3 Bd7 Qba5 Nb6 Be3 Qcb2 g1B Bg2 Bgf2 Ng1 Qb5+ Kc2 d3+ Kc3 d2 Be8 Qc5+ Kd3 d1N Qe5 d4 Bd7 Qca3+ Kc4 d3+ Be4 d2 Be8 Bd5+ Kb5 Qc1 Bc6 Bd4 Bg2 Bf3 Bd5 Qaa3 Be4 Qe3 Ka5 Qg5 Kb5 Bfe3 Ka5 Nf2 Kb5 Bh6 f8B+ Ke8 e7 d1N Bg7 Nfh1 Nf7 Qc3 Bh8 Bf8 Bg7 Qd2 Kc4 Bf2 Kd5 Qd3 Kd6 Qde3 Bb1 Bc6 Kc7 Be1 Bbe4 Bec3 Nd7 Ba7 Nb6 Bd4 Kc8 Nf1 Rf3 Nfg3 Kc7 Qf2 Rd3 Qfe3 Rb3 Qgf4 Ng5 Qf5 N5f3 Kf7 e8B+ Kg8 Bg6 Bfc5 Kd8 Bd6 Ng5 Qff4 Nf7 Qh6 Bf8 Qhg5 Bg7 Bc7+
1rk4r/pR6/Pq1Q2Br/Qq6/4q2R/1r1pBQ2/qnb1N2Q/1Bb1QK2 w - - 0 1 legal: proof: d4 f5 b4 e5 g4 c5 f4 exd4 e4 fxe4 bxc5 Kf7 Bb5 Ke7 Bf1 Ke8 g5 Nf6 gxf6 Nc6 f5 Ne7 Nd2 Ng8 Ndf3 h6 Ne5 h5 Ng4 hxg4 h4 d5 a4 Kd7 c4 b5 f7 g5 f6 g3 h5 g2 a5 b4 a6 d3 h6 e3 h7 b3 Qc2 d4 Ra5 g4 Be2 d2+ Kd1 g3 Bh5 b2 Ke2 b1R Qc3 d1R Rh4 Rab8 Bg6 Nh6 Rb5 Ng4 Qe1 Bh6 f8Q Ne5 f7 Qb6 c6+ Kc7 c5 Nd3 Rb3 Bf5 Qd6+ Kc8 c7 Qb5 Rb4 Rb3 f8Q+ Qe8 Rb7 Nb2 Qa5 Bc2 Qf3 Qa4 Qe1 Qa2 Qa5 Rdd3 Ke1 e2 Be3 Rf8 h8Q Rb6 Bf2 Bc1 Be3 Rdb3 Qhe5 Qa4 Qee6+ Qd7 Qh3 Rh8 Qh2 Qb5 Qdf4 Kd7 c8B+ Kd8 Be6 d3 Bc4 Kc8 c6 Re8 c7 Rh8 Qd6 Rc6 Nh3 Rb6 Nf4 g1Q+ Qf1 Qg2 Qf3 Rb4 Ba2 Rb3 Bb1 Rc6 Qfd5 Qe4 Qh5 g2 Qf3 g1Q+ Qf1 Qg4 Qf3 Qge6 Kf2 e1Q+ Kg2 Qd7 Ne2 Qd2 Kf1 Qd8 Qfh1 Bd1 Qf3 Na4 Bh5 Qa2 Qdg3 Rch6 Qge1 Bc2 Bf7 Kd7 Bg6 Kc6 c8Q+ Qc7 Ng1 Nb2 Qcf8 Kd7 Qfd6+ Kc8 Ne2 Qcb6
k2N1Rn1/3PNpbQ/4p1N1/2B1bq2/5n2/1r1nQ3/2KN1Bp1/1bBN1rr1 w - - 0 1 legal: proof: f4 b5 g4 c5 a4 e5 axb5 exf4 b6 h5 gxh5 Bb7 Bh3 Ba6 Bf1 Bc8 b4 Qf6 e4 Qc6 b5 Bb7 e5 Qg6 e6 Qd3 e7 Bc8 Bh3 Qd4 Be6 dxe6 Ra3 Qd8 Ra4 Kd7 Rb4 cxb4 e8N a5 h4 g5 d4 a4 Kd2 a3 c4 b3 d5 b2 d6 a2 c5 a1B h6 f3 b7 f2 b6 Kc6 h5 f1N+ Kc2 g4 h7 g3 d7 g2 h6 Ra7 Nd2 b1R Qe1 Qc7 Ne2 Ra8 Nc3 Bb2 Nd1 Ra2 Qe3 Ra7 Nd6 Na6 b8B Bfg7 Nb7 Qf4 Bd6 Bbe5 Rh3 Ng3 Nd8+ Kb5 c6 Ne2 b7 Rb3 b8B Bb7 c7 Bd5 c8N Nc5 Ne7 Ka6 Rh4 Nd3 Bc5 Qf5 Rh1 Rab7 Bba7 R7b4 Rh2 Rf4 Rh4 Rf2 Rb4 Rf1 Rb8 Nef4 Rc8 Rb1 Ra8 Ba2 Rc8 Nf6 Bab6 Rf8 h8N Ng8 h7 Rg1 Nhg6 Re8 Ndc6 Kb7 h8Q Rf1 Ra8 Rb8 Qh7 Rb3 Ba7 Rc8 Bab6 Rc7 Re8 Rc8 Rf8 Ka8 Nd8 Rb8 Ba7 R8b4 Qg3 Re4 Bf2 Ree1 Qe3 Rg1 Bd4 Ref1 Bc5 Bb1+
1Nk5/Q6Q/1pq1pRP1/R1q4Q/1Q1n3b/5bpn/BQr1qB1K/R1b1r3 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Ra5 Ng4 hxg4 Bb2 Ra6 Bc1 Ra8 Kf2 Kd7 Kg2 c5 a4 e6 d4 c4 h4 b6 a5 c3 g6 f3+ Kh2 c2 a6 f2 f6 b3 a7 b2 h5 b1Q f7 Rh7 d6 Rg7 h6 Bb7 d5 Kc8 d7+ Kc7 d6+ Kc6 h7 Qa2 h8Q Nf6 Qh7 Ne8 Qd4 Qa5 Bc4 f1Q Be3 c1B Ba2 Nf6 Bf2 Qc7 d8Q Nd5 Ne2 Be7 f8Q Qc5 Qb2 Bh4 Qde7 Nf4 d7 Nh3+ Qf4 Q7d6 Nd4+ Kc7 Nc6 Qe2 Rf1 Rf7 Qg5 Rf5 Qgh5 Re5 d8R+ Qd7 Na5 Bf3 Qfb4 Nc6 Rf8 Re8 a8Q Nd4 Nc6 Rc8 Nb8 Re3 Rf4 Kd8 Qa6 Qdc6 Qaa7 Rc7 Re4 Kc8 Re5 Q5b5 Bd5 Qed3 Ra2 Bg2 Q4d2 Qcc4 Bg1 Re1 Rf6 Bf3 Ra1 Qe2+ Bf2 Rc5 Rg5 Qc6 Qdb4 Q4b5 Rgf5 Rc2 Ba2 Qbc4 Rb5 Q4c5 Ra5 g3+
Q2q1N2/3Q1R1p/1kqbB1bB/2prp2q/3BK1QQ/b2n2Q1/1P5R/3n2r1 w - - 0 1 illegal: No possible last move
1q1N4/NpBn2k1/1q5r/Qq1Q1bKb/Q6R/1pPpr2n/2BQ4/3QB2n w - - 0 1 legal: proof: f4 a5 d4 f5 a4 h5 b4 axb4 e4 c5 exf5 cxd4 g4 e6 g5 Be7 Ra3 Ra5 Rg3 Ra8 Rg4 Bf6 gxf6 hxg4 Ke2 Kf8 h4 d5 c3 g5 a5 b3 h5 g3 Kf3 d3 Kg4 d4 h6 g2 a6 d2 f7 e5 a7 e4 h7 e3 Nf3 g1N Bd3 e2 Rh4 e1Q Bc2 d3 Na3 Qd7 Nb5 Qe5 Nfd4 Kg7 f8B+ Kf6 Bd6 Qde8 Nc6 Nd7 Nd8 Qc5 Bc7 Rb8 a8Q Qd6 Qa5 Kg7 Na7 Nh3 Qa4 Ne7 f6+ Kg6 f7 Nf5 f8Q Ng3 Qe7 Nh1 Qee1 Kg7 f5 Qb6 Qe6 Qb5 Qd5 Qf8 Kh5 g4 Qa5 g3 Kg4 g2 f6+ Kg6 f7 Kg7 Qa4 g1Q+ Kf5 Qe3 Kg4 Qd6 f8Q+ Kg6 Qff3 Kg7 Qff4 Qeb6 Qa5 Re8 Qfa4 Re3 h8Q+ Kg6 Q1f3 d1B Bd2 Ra8 Qe8+ Kg7 Be1 Rb8 Kf5 Be2 Qf2 Bh5 Qd2 Ra8 Nac6 Ra6 Na7 Rg3 Qee2 Re3 Qed1 Qg3 Nf7 Qh2 Bd8 Qb8 Bc7 Q6c5 Nd8 Rh6 Bd6 Qbb6 Bc7 Qcb5 Nac6 Nc5+ Qe6 Ng1 Kg5 Bd7 Qd6 Bf5 Qd5 Nd7 Na7 Nh3+
4r3/Np5q/N3Q2N/Q1Npr2R/1Q1p1P2/bnq1BK1N/n2q4/b1Bb3k w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 d4 f5 e4 c6 a4 axb4 Bg2 Ra6 Ra3 Ra8 Rd3 c5 dxc5 Ra6 Rd4 exd4 e5 Ra8 Be4 fxe4 Ke2 Ke7 h4 Ke6 f4 Kf5 c4 Kg4 e6 Kg3 e7 Kg2 e8N e3 a5 b3 c6 d6 c7 b2 a6 Nf6 h6 Nc6 h5 Rh7 c5 Bh3 c8N Nb4 a7 Qd7 c6 Bf5 c7 Na2 Nh3 Ne4 Qa4 Nd2 Nc3 b1Q Ne4 Nb3 Nc5 Bc2 Qb4 Rb8 a8Q Rh8 Ke1 e2 h7 Qa1 h6 Qc3+ Bd2 Rg8 h8N Qf5 Qa6 Qh7 Nf7 Ra8 Qaa4 Ra5 Na7 Rb5 c8Q g5 Qe6 g4 Nc7 g3 Qaa5 Be7 N7a6 Re8 Nf2 Bf8 Rh5 Be7 Nh3 Kh1 Nfg5 g2 Kf2 Bf8 Be3 g1Q+ Kf3 e1B Nf7 Qh2 Qg4 Qg8 h7 Qhd2 h8B Qh7 Nh6 Be7 Bf6 Bf8 Nd7 Rbe5 Qe6 d5 Bh4 Bc5 Bf2 Be7 Qc4 Ba3 Qcb4 Bb2 Bg1 Ba1 Ndc5 Bh4 Bf2 Be7 Be1 Qdd3 Bd2 Bf8 Bc1 Qdd2 Qc4 Be7 Ne4 Bb4 Nec5 Ba3 Qcb4 Bd1+
1Q3QRQ/Pp2p2N/2NN1bp1/1r1Kbq2/b3Q1Q1/1nB1q1nn/4R3/6kr w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 gxf4 g4 Nf6 g5 Ng8 g6 Ra5 Bg2 Ra7 Bf1 Ra8 g7 Be6 Be2 Bc8 Bh5+ Kd7 Bg6 hxg6 Qb3 Ke8 Qc2 Ra6 Qd1 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 c6 d4+ Kc4 h4 c5 d6 b3 d5 f3 f6 f2 h5 f1N a5 b2 a6 Nc6 h6 Ra7 d7 Qb6 d8Q Na5 h7 Nb3 d6 Bg4 f7 Bd7 Rh2 Nh6 g8Q Ba4 d7 Ng4 Qb8 Bg7 d8N Be5 Nc3 b1Q+ Qc2 Ra8 f8Q+ Qe6 Bd2 Ng3+ Kf3 Kd4 Ne4 c4 Nh3 c3 Re2 Qb6 Nd6 Nf2 Ng5 Nh3 Qe6 Bf6 Qd1 c2 Nc6+ Kd3 Qe1 c1B Bc3 Bf4 Qg4 B4e5 Raa2 Rg8 h8Q Qe3+ Kg2 Rg7 a7 Rh7 Rac2 Rh5 Nh7 Rf5 Qc7 Rc8 Qb8 Rf1 Rc1 Rh1 Rcc2 Qd4 Kf3 Rc7 Na5 Rc5 Nc6 Rb5 Nf7 Kc4 Nd6+ Kc5 Rcd2 Qg1 Rd4 Qf5+ Rf4 Kd5 Qb1 Kc5 Qe4 Qe3+ Kg2 Qd3 Qh6 Qe6 Qef3 Bh4 Rf8 Qef5 Rg8 Bhf6 Qff4 Qd2 Kf3 Kd5 Ne4 Kc4 Nd6+ Kd3 Qhf8 Kc2 Rg2 Kd1 Rf2 Ke1 Rg2 Kf1 Re2 Qd1 Ke3+ Kg1 Qe4 Qdf1 Kd3 Q1f3+ Kc4 Rb4+ Kd5 Qe3 Qbe8 Rb6 Qb8 Rb5+
1Qq3B1/1bN3k1/2r1R1n1/Bqprr3/6Q1/P1BbpBp1/4Qr2/1K2nB1R w - - 0 1 illegal: No possible last move
B2Q4/1Nb3q1/pQ3pnB/r2p1q2/Pr2NQ2/r2b1KQn/2k1r3/4R1BQ w - - 0 1 legal: proof: d4 h5 c4 b5 g4 c5 a4 e5 f4 g5 b4 bxc4 bxc5 Bb7 Ra3 Ba6 Rg3 Bc8 dxe5 gxf4 g5 Nh6 Rg2 Ng8 Rg4 hxg4 Kf2 Ke7 e4 Ke6 h4 d6 c6 f3 h5 c3 h6 c2 h7 a6 g6 Qa5 g7 Nh6 g8Q Nd7 c7 Rb8 Nh3 Rb4 Bg2 g3+ Ke3 f2 Na3 f1Q Nb5 Qf5 Nf2 Ng4+ Ke2 Qg5 Kf3 Qg7 Bh6 c1R Re1 Rc2 Qd2 Rcb2 Qf4 Re2 Bh1 Bb7 c8Q g2 Qc6 g1R Qb6 Be7 Qgd8 Nf8 Qg3 Rg8 h8B Ng6 Qb8 Bd8 Qa8 Ke7 e6 Kf6 e7 Bc7 e8Q Bd5 Qf8 Bc4 e5+ Kf5 e6 Bd3 Ne4 Nf2 e7 Nh3 e8Q Rgg2 Qh4 Rg5 Qed8 Ke5 Qab8 Kd5 Qg3 Kc4 Qa8 Kb3 Qab7 Kc2 Qba8 Qh7 Bd4 Qg7 Bg1 Rc5 Qd5 Rc3 Qh5 Ra3 Qhh4 Rh8 Qhf4 f6 Qf7 Re8 Qd5 Nf2 Qh5 Re5 Bg2 Rc5 Qh1 Nh3 Nbc3 Rf5 Nc5 Qb5 N3e4 Qbd7 Nb7 Ra5 Bf1 Nf2 Bh3 Qb5 Bd7 Qf5 Bc6 d5 Nbc5 Rc4 Ba8 Rb4 Nb7 Nh3
1RR1q3/3NR2P/2Q4r/p2nK1n1/2q4Q/pNRQ4/k1b1Bq1p/1b2rRq1 w - - 0 1 illegal: No proof kernel
3r1q2/Qp1N3N/2q1qRQ1/1B1q3p/1Q3K2/rbp2P2/kBQ1Q1nn/2b2N2 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 f5 exf5 axb4 c4 gxh4 Ra3 bxa3 cxd5 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Kd7 Kf3 Kd6 d4 e5 g4 h5 f6 c5 a5 h3 a6 a2 g5 a1Q g6 c4 f7 e4+ Kf4 h2 a7 c3 g7 e3 Nd2 e2 Nh3 e1Q Qc2 Qee7 Bb5 Qb6 Nf1 Qaa6 Ng5 Nc6 Bb2 Nb4 Nh7 Nf6 g8Q Be6 Qgg6 Ng4 f3 Qc6 Rg1 h1Q Rg2 Bg7 f8N Nh2 Nd7 Rhd8 Rg5 Qe8 Rf5 Qf8 Qe2 Nc2 Rf6 Ne3 Qec2 Rab8 a8Q Qg2 Qa7 Ra8 Rf7 Bf6 Qe2 Bh4 Rf6 Be1 Qgc2 Qgg8 Qg6 Bd2 Qc2 Bc1 Qg6 Kc7 d6+ Kc8 Qgc2 Bb3 d5 Qa2 Nb8 Qe6 d7+ Kc7 Qg6 Kd6 Qgc2 Re8 d8Q+ Qd7 Qc8 Rd8 Qcc4 Qc6 Nd7 Qa5 Q4d3 Qa2 Qg6 Qa5 Nb6 Kc5 d6 Kb4 d7 Qa2 Qb8 Ra3 Qa7 Re8 d8Q Qed5 Qc7 Rd8 Qe7+ Qdc5 Qge4+ Bc4 Qb1 Kb3 Qg7 Qe6 Qbd3 Qcc6 Qgg6 Bd5 Nd7 Bc4 Ba1 Qd2 Qd6 Qdd5 Bb2 Ka2 Q4c2 Bb3 Qb4 Ng2+
3b3B/1b1n2n1/B1p3q1/1BqQp2B/B1Q1R1PN/1qp3k1/2Q1rn1b/3K2N1 w - - 0 1 legal: proof: b4 d5 e4 g5 f4 f5 c4 fxe4 a3 dxc4 f5 a5 bxa5 Bh6 Ne2 Bg7 Ng1 Bf8 g4 b5 h4 Qd3 a4 Qd8 Ra3 Ra6 Rf3 Rg6 Rf4 gxf4 Rh3 Nd7 Rh1 Rg5 hxg5 Nb8 d4 Kf7 a6 h5 f6 Kg6 f7 e5 d5 f3 a7 c3 a8B b4 a5 e3 a6 b3 a7 b2 d6 h4 d7 h3 Nd2 b1Q Ba6 h2 Ne2 Nf6 Bc6 Ne8 a8B Qe7 d8Q Qc5 Ba4 Qb3 B8c6 Bb7 Bcb5 Be7 f8Q c6 Qd5 Bd8 Qf4 Nd7 Qfc4 Rh6 Rf1 h1N Ng1 f2+ Ke2 Rh4 Re1 Rh2 Ndf3 Rg2 Kd3 e2 Qc2 Qd6 Be3 f1Q Bd2 Qf2 Nh4+ Kg7 g6 Kf6 g7 Qfc5 g8B Qe6 Ra1 e1B Bh6 Bg3 Bg7+ Kg5 Bh8 Bh2 Re1 Ng7 Bf7 Rf2 Bh5 Qg6+ Re4 Rg2 Qb1 Ra2 Qb2 Nf2+ Ke2 Qd4 Re3 Kf4 Re4+ Kg3 Ke1 Qc5 Qc1 Nh3 Qb1 Rc2 Kd1 Re2+ Qc2 Nf2+
1K3qBk/2B1Br2/3P1bBp/qRpN2N1/b3Qr1Q/2B1r2r/1pQ3r1/2n5 w - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 f5 cxd5 g5 e4 fxe4 f5 Nc6 Ra2 Nb8 h4 Nf6 g4 Kd7 h5 Ke8 Ra3 Ng8 Rf3 Nc6 Rf4 gxf4 g5 Ne5 Nc3 Be6 Nb1 Ng6 hxg6 Bc8 Ke2 e5 d4 b5 f6 c5 a5 e3 Kd3 f3 Ke4 f2 g7 Kf7 d6 b3 Kd5 b4 Kc6 b2 a6 e4 d7 b3 a7 e2 d5 e1R d6 e3 Bb5 f1R Nf3 e2 Be3 Qe7 Kc7 Nh6 Nc3 Kg8 Nd5 b1R Bd2 Rb2 Qc2 Nf7 Bc3 Ne5 Bd3 h6 Bg6 Rh7 Rh4 Nd3 Rb4 Nc1 Rb5 Qe5 d8B Bd7 Kb7 Be7 Bc7 Rf8 a8Q Rh1 Qd8 Rh3 Kb8 Ra2 Qe4 Rd2 Qc2 b2 Qe8 Bd8 Qe7 Qg3 Qee4 Rf7 Qh4 Rf1 Qhe4 e1Q Bf5 Rd3 Rb6 Be8 Bb4 Ba4 Rb5 Re7 Qh4 Kf7 g6+ Ke8 Bba5 Re2 Be4 Rde3 g8Q+ Kd7 f7 Ke6 f8B+ Rf7 Qg7 Rg2 Qd4 Qg5 g7 Be7 Nh2 R1f4 g8B Qe5 Bg6 Bg5 Nb4 Kf6 Be7+ Kg7 Nd5 Kh8 Qde4 Qg7 Nf3 Bf6 Ng5 Qb4 Rb6 Qb5 Bc3 Qa5 Rb5 Qf8+
1B6/rqb5/1q2P1pK/2B2RB1/2rB2Bb/1Qp2r2/pNQRb3/nR2r2k w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 Kf2 h5 Na3 f5 Nc2 f4 Ke1 Nc6 Ne3 Nd4 Ra5 Be7 Ra1 Nf5 gxf5 Bf8 Ng4 hxg4 Kf2 Ke7 h4 Kd6 e4 Ke5 b4 c5 d3 a5 f6 g6 h5 c3 h6 c2 b6 a4 b7 a3 b8B+ Bd6 b5 a2 h7 c4 f7 c3 f8B Bc7 b6 Nf6 b7 Qd5 Be2 Ra7 Bc5 Nd7 Nh3 Rd8 B1e3 c1B Rb1 Re8 Qc2 g3+ Ke1 g2 Kf2 Re6 Rf1 Rc6 h8R g1R Rd8 Qb3 Bd1 Qb6 Be2 Rd6 Bd1 Rd4 Be2 Rc4 d4+ Kf6 d5 Ke5 d6 Rh1 Rd1 Re1 Rf8 Ba3 Rd2 Bc1 Ba3 Nc5 d7 Nb3 d8B Na1 Bg5 Bg4 Bae7 Ba3 Rf6 Bc5 Bf8 Be7 Rf5+ Ke6 e5 Bed8 Bd4 Kd5 Qb3 Ke4 Bfc5 Be7 e6 Bf6 Bf1 Bh5 Ng1 Be7 Ne2 Bed8 Nc1 Bg4 Kg1 f2+ Kh2 Kf3 Bh3 f1Q Nd3 Bf6 Nb2 Bfd8 Bh6 Bh4 Bg5 Qd3 Qa4 Qe4 Qc2 Bd8 Bbd6 Bc7 b8Q Qeb7 Qa8 Bd8 Bb8 Bc7 Qb3 Ke4 Kg2 Be2 Bg4 f3+ Kh3 f2 Bge3 Bf6 Bg5 f1R Kh4 Rf4 Nd1 Rf3 Nb2 Qd5 Qc6 Be7 Qca4 Qdb7 Bgf6 Bed8 Kg5 Be7 Kh6 Bed8 Rd5 Kf4 Bfe7 Kg3 Rf5 Kh2 Bg5 Kh1 Qc2 Bf6 Qab3 Be7 Bge3 Bh4 Bf4 Rb4 Bg5 Rc4
1Q5q/K2B4/1q2pNN1/PN1p1Q2/rr1p1nRr/N7/N2bRR2/3rnq1k w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h6 e4 b6 g5 c5 exf5 cxd4 b4 axb4 f6 Kf7 Be3 Ke6 f5+ Kd6 Bc1 Kc6 g6 Bb7 Bg5 hxg5 Qd3 Ba6 Qe2 Bc4 Qd1 Bf7 gxf7 Qe8 Qg4 Qc8 Qd1 Qd8 Kd2 Kd5 Kd3 g6 c4+ Ke5 h4 Kf4 a4 Kg3 c5 d6 Kc4 e6 Kb5 b3 h5 g4 h6 g5 h7 b2 c6 d5 c7 Na6 c8N Bb4 f8N Nc5 f7 Ne7 f6 Nd3 Ng6 Bd2 f8N Ne1 Na3 b1R+ Qb3+ Kf2 f7 g3 Rh2+ g2 Nd6 g4 Ra2 g3 Ne2 Ra7 Nc3 Kg1 Nd7 Qf8 Nf4 Ng6 Nf6 Ra8 Kc6 b5 Kb6 b4 Ndb5 Rb2 Qc2 b3 Rh4 Qe8 Rg4 Kh1 f8Q g1Q Qf5 g2 Qd6 Rb1 Qb8 b2 Be2 Rd1 a5 b1Q Rb2 Qf1 Na2 g1R Kb7 Ra6 Bd3 Rc6 Ka7 Rb6 Bc2 Rg3 Ba4 Rb3 Rc2 Rb4 Rb2 Rc6 Rc2 Rcc4 Rb2 Ne5 Ng6 N5d3 Rc2 Nf4 Rb2 Qf8 Rc2 Rg8 h8R+ Qh6 Rh7 Rh8 Rf7 Qf8 Rb2 Rh4 Rc2 Qh8 Rf8 Bc1 Re2 Qb3 Nd6 Bd2 Bd7 Ra4 Ndb5 Rcb4 Rc8 Qe3 Rc2 Qe5 Rb2 Qd6 Rf2 Be3 Rbe2 Bd2 Nc1 Qc6 Na2 Qb6+
b3R1n1/1Q3qpP/Q1rr1Q1p/1R3Q2/n2rR1qQ/6K1/1r1B1p2/q3NkN1 w - - 0 1 illegal: No proof kernel
1N1q1Q1n/1p2rpQ1/1P1B1q1n/q3NBbQ/1Q2Qqp1/2B4K/k2b4/bR6 w - - 0 1 illegal: No possible last move
2Q2K2/5B2/p2pRn1B/2BrRPb1/k2nR2R/2p2r2/2bnQNn1/2rRn3 w - - 0 1 legal: proof: e4 e5 b4 g5 d4 f5 h4 gxh4 c4 b6 a4 Qg5 c5 Be7 b5 Bd6 a5 Qg6 a6 Bf8 Nc3 Qh6 cxb6 exd4 e5 Qc6 Ne4 Qb7 axb7 fxe4 Ke2 h5 g4 c5 f4 c4 e6 d6 g5 a6 e7 Kd7 e8R e3 Kf3 h3 Ke4 e2 Kd5 e1N g6 h4 g7 d3 Re5 h2 Be2 d2 Nh3 c3 Nf2 h3 Bc4 Rh5 Qe2 Nc6 b8R d1N b7 Be7 b6 Bg5 Re4 Nd4 Bb3 Nh6 g8R Ng4 Rge8 Ra7 R8e5 Nf6+ Kc4 Kc6 Re6 Bd7 Rbe8 Bc8 b8Q Rf7 b7 Kb6 R6e5 Bf5 Qc8 Bh7 b8B Ne3+ Kb4 Bf5 R8e6 N3g2 Kc4 Bh7 Ra4 Bf5 Rf1 h1N Rg1 h2 Rf1 Nec2 Rd1 Ng3 Bd2 h1R Rb4+ Nb5 Ba7+ Ka5 Bc5 Nf1 Bc1 Nce1 B1e3 Nh7 Kd5 Nd2 Kc6 Rf6 Kd7 Nd4 Ke8 Rf1 Ng4 Rf3 Nf2 Rg6 Ba2 Nf6+ Kf8 Rg7 Re7 Rh1 Bf7 Rgh7 R5e6 R7h5 R4e5 Bc2 f5 R5h3 Bf4 Rd3 Re8 Rhf3 Re4 N4b3 R6e5 Rd5 R8e6 Nd4 Rc4 Bh4 Bh6 Bg5 Bb4+ Ka4 Rh4 N4b3 Rce4 Nd4 Bc5 Nd3 Rb1 Re1 Rb6 Ra1 Rb1 Nde1 Rd1 Rc1
b1rR2n1/1nprp2R/3k1rnR/2R3Bb/2Qn1b2/2p3P1/2NR2K1/QB5Q w - - 0 1 legal: proof: a4 d5 f4 b5 axb5 f5 c4 dxc4 e4 Qd3 g4 Qg3+ hxg3 g6 Nc3 fxe4 f5 g5 Nd5 Bb7 Nf4 gxf4 Ra4 Ba6 Ra1 Bc8 Kf2 Kd7 b4 h5 d4 a5 g5 f3 g6 c3 d5 h4 g7 h3 b6 h2 b7 a4 d6 a3 b5 a2 f6 Na6 b8Q Rh6 f7 Nc5 b6 Na4 b7 Nc5 Bg5 Rf6 Bd3 e3+ Kf1 f2 Ne2 Kc6 d7 Kd6 Kg2 f1R Nd4 e2 d8R+ Bd7 Qa7 Rc8 b8R Nb7 Qc1 Rd1 Nc2 Rd2 Rb1 a1N Rb5 Nb3 Qaa1 Nd4 Rc5 Rd1 Ra8 Rd2 Ra2 Rd1 Bf5 e1N+ Kf1 Nef3+ Kg2 Ne5 Be4 Nh6 g8Q Ng6 Bf5 Bg7 f8R Rd3 Qf7 Ng8 Qc4 Bh6 Rf7 Rd1 Rh7 Rd3 Bh4 Bf4 Bg5 Rd1 Ne1 Rd3 Rf2 Rd1 Bb1 Rd2 Nc2 Rd3 Rf8 Bg4 Rd2 Bh5 Rhd1 Nh6 Rfh8 Ng8 Rh6 Nc6 R8h7 Rd5 Rd3 Nd4 R1d2 h1B+ Kf2 Be4 Qh1 Rdf5 Kg1 Bc6 Kh2 Rd5 Kg2 Kd7 Qh3+ Ne6 Kg1 Na5 Qh1 Ba8 Re3 Nb7 Kg2 Rd6 Ree5 Nd4 Rf5 Rfe6 Rf8 Rf6 Re8 Rd5 Rd8+ Ke6 Qb5 Rd7 Qc4+ Kd6
2n5/n4K2/nR1RnRpq/1q4P1/Q4Bp1/1b1Rp2Q/3n1qNR/1N2bkN1 w - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 cxd4 g5 h6 Bh3 h5 Bg4 hxg4 f3 d5 Na3 b5 Qd3 e5 Qd1 d3 Nb1 d4 Kf2 Rh6 Ke1 Rd6 f4 Rd5 exd5 e4 Kf2 Ra6 Kf1 Re6 Ke1 Re5 fxe5 Be7 Ba3 Bd6 Bc1 Bf8 Kd2 Ke7 h4 f5 a4 g6 c4 f4 e6 Kd6 c5+ Ke5 d6 f3 h5 Kf4 a5 Kg3 a6 Kg2 a7 f2 a8N f1Q d7 b3 e7 b4 e8R b2 h6 b3 h7 Qf2+ Qe2 Na6 h8R Ne7 c6 Bg7 Reg8 Qf8 d8R Be6 c7 Nc8 R8h3 Be5 Rd5 Qh6 Rf8 Bg3 Rf6 Bf7 Rdd6 Bc4 Na3 b1Q Nb6 b2 Nd5 Bb3 Rb6 Qa2 Nb1 Qa4 Ra3 Qb5 Rfd6 Bh4 Rf3 Bg3 Rff6 Bh4 Nb4 Bg3 Nc2 Bh4 Kd1 d2 Qf3+ Kf1 Rh2 Bg3 Nc3 b1N Qe3 Be6 Ne1 Bh4 Kc2 d1N+ Bd2 Nb2 Ng2 Nd3 Qh3 Ndc5 Rb3 d3+ Kb2 Qf5 Bf4 Nd2 Nb1 e3 Kc3 Be1 Ra3 Bb3 Kd4 Qfd7 Ke5 Qf7 Rf5 Qff8 Rf7 Ne6+ Kf6 Qfe8 Rf8 Qec6 Kf7 Qf3 Kg8 Qf2 Rf6 Nf3 Kf7 d2 Qh4 d1N Qh3 Bc2 Rad3 Nc3 R3d5 Nd2 Rd3 Na7 c8Q Na4 Qc4 Bb3 Rbc6 Nb6 Qa4 Nbc8 Rb6 Qe2 R6d5 Qf3 Rdd6 Qf2
1rnQN2q/2nQ2QK/5p2/NQB1q1pB/2R1pQ2/3n1qr1/4P3/qN1k1n2 w - - 0 1 legal: proof: f4 c5 b4 e5 g4 a5 d4 axb4 g5 cxd4 Bd2 e4 Be3 Bd6 Bc1 Be5 fxe5 Qe7 Nf3 Qf6 Ng1 Qd8 a4 h5 g6 b6 Bd2 f6 Be3 Ke7 Bc1 Ba6 Ra3 Bb7 Rg3 Bd5 Rg4 Bf7 gxf7 hxg4 Kf2 Ke6 Kg3 Kd5 Kf4 Kc4 Kf5 d5 Kg6 b3 f8Q d3 h4 d4 c3 b5 a5 b2 a6 d2 h5 d3 h6 b4 h7 b3 e6 g3 e7 g2 a7 Na6 e8Q Nc7 Nf3 g1Q+ Bg2 Qc5 Nd4 Qe5 Nc6 Rb8 Qf1 d1N a8N d2 Qf4 Nf2 Bf3 d1N Bh5 Nd3 Be3 Qde7 Ba7 Ne3 Rc1 Nf1 Bc5 Qd8 Qfe7 Qc8 Q7d7 Ne7+ Kf7 g5 Kg7 Qd8 Kh6 Nc8 Kg6 Kb5 c4+ Ka4 Qg7 Qdd6 Qd8 Qf8 Na5 Rg8 h8Q Rb6 Nd2 b1Q Kh7 Qba1 Nb1 b2 Qgd7+ Rb5 Qhg7 Qa3 Qd5 Rb3 Rc3 Nb4 Rc2 Rg3 Rc1 Qf3 Q8d7+ Nb5 Nc7 Nd3 Rc3 Rh3 Ne8 Rg3 Bf2 Kb4 c5 Nc7 c6 Ka4 Qd8 Kb4 Bc5+ Ka4 Na3 b1Q Q8d7 Qa2 Nb1 Qa1 Rc4+ Nb4 Nb7 Kb3 Na5+ Kb2 Qd8 Nd3 Q5d7 Qc3 Qd5 Kc2 Q8d7 Kd1 Q5f5 Na8 c7 Qe5 Qd8 Nd6 c8Q Nc7 Qcd7 Nc8 Qb5 Nd6 Qfd7 Qfe7 Qa8 Rf8 Qf7 Rg8 Ng7 Rc8 Ne8 Qf8 Qg7 Rd8 Qdf5 Rc8 Qd5 Rb8 Qh3 Nc8 Qd8 Ne3 Qe6 Nf1 Qed7 Qh8+
R4Q1r/4QNb1/N3b3/1Qbqrp1p/1qPBpn2/k4p1B/N4Q2/K4bQ1 w - - 0 1 legal: proof: e4 b5 b4 c5 f4 g5 a4 gxf4 axb5 d5 b6 dxe4 h4 Bg7 g4 Qd7 g5 Na6 b5 Bc3 Ra4 Bg7 Rb4 cxb4 Nf3 Bf8 Ng1 Qd8 g6 Nc7 Rh3 Ne6 Rh1 Ng5 hxg5 Ba6 Ba3 Bb7 Bc1 Bc8 c4 Kd7 d4 Kd6 Kd2 f5 Kc2 a5 Kb2 e5 d5 Kc5 g7 h5 g6 f3 d6 a4 d7 b3 b7 Kb4 b8N e3 b6 e2 b7 e1B Nh3 e4 Qd2+ Kc5 Ng5 Nf6 g8Q Nd5 g7 Ra5 Nc3 Kb4 Bh3 Bf2 Nf7 a3+ Kb1 Rc5 Bb2 Nf4 Qc2 Qb6 d8Q Re5 Qe7+ Bc5 Qf2 Be6 Rd1 Qc6 Rd8 Qd5 Ba1 b2 Na6+ Ka5 b8Q a2+ Kc2 b1B+ Kb2 Bc2 Qb3 Bd3 Ra8 Bf1 Qb8 Rh7 Qh8 Rh6 g8Q Rh7 Qgg3 Bg7 Qgg1 Rh6 Qhf8 Rh8 Ne2 Ka4 Nc1 Qd4+ Kc2 Qd6 Bd4 Qd5 Qb5+ Ka3 Kc3 a1Q+ Kc2 Bd7 Na2 Qc3+ Kb1 Qb4+ Ka1 Be6
n1R5/2Q2qQ1/1p1Qr1pn/1P2NQ2/3Q2pR/p7/k3Kb1B/nnr2BBq w - - 0 1 legal: proof: b4 d5 g4 h5 f4 hxg4 a4 e5 c4 exf4 cxd5 b6 a5 Bb7 a6 Kd7 axb7 Ke8 Nc3 c6 b5 c5 Na2 Na6 Nb4 cxb4 Bg2 Nb8 Bh3 Qd7 Bf1 Qd8 e4 Kd7 h4 Kd6 d4 a5 h5 f5 h6 g6 h7 a4 Rh2 a3 Rh1 b3 Bb2 f3 Rc1 f2+ Ke2 f4 Rh4 Na6 b8B+ Nc7 Nf3 Qf6 Ne5 Nh6 Qc2 Rg8 h8Q Qf7 Qg7 Ra4 Bc3 b2 Bd2 b1N Be3 Rc4 Qb2 Ke7 d6+ Ke6 d7 Na8 d8Q Bc5 Qg5 Re8 Qf5+ Ke7 d5 f3+ Kd1 Bd4 Qd2 Rc6 Rc2 Re6 Rc8 Bc5 Qd4 Rh8 Bd3 f1N Bg1 f2 Ke2 Nfd2 Bc7 Nb3 Bb8 Rd8 d6+ Ke8 d7+ Ke7 Kd1 Rg8 Bf1 Na1 Ke2 Re8 Nd3 Rc6 Bbh2 Rc7 e5 Rc6 Qff4 Ke6 d8Q Re7 Qc7 Re8 Qde3 Kd5 Qf5 Kc4 e6 Kb3 e7 Ka2 Ne5 Re6 Qc3 Rd8 e8Q Rd1 Qed7 Rc1 Qdd6 Bd4 Bh3 Bc5 Qcd4 f1Q+ Ke3 Qg2 Kd3 Qh1 Ke2 Rc4 Bf1 Rc1 Qb4 Be3 Qbd4 Bf2
R4N2/1q1n2kp/4Q3/r1QN1P2/p3bQ1p/3Nn3/q2n1pKB/nQr2Q1R w - - 0 1 illegal: No possible last move
1nRqB2Q/3ppr2/1PR1b3/1RB1pp1Q/1R4r1/b3p1KN/1q3RQ1/1k1n4 w - - 0 1 illegal: Other
5N2/PpK2bp1/Qb3pn1/RB1N1NRN/b2pR2Q/1np1q3/8/1knr1N2 w - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 h5 gxh5 dxc4 Nc3 e6 Nb1 e5 f4 Ra3 e4 Rh7 f5 Bc5 d5 Ra6 Be3 Bf8 Bd4 exd4 e5 Re6 fxe6 Rh8 Ke2 Ke7 Kf3 c5 Kf4 c3 h4 c2 a4 c1N h6 c4 h5 b3 a5 c3 h7 b2 h6 Qc7 d6+ Ke8 a6 Qa5 e7 Kd7 e8R Kc6 d7 Kc5 d8N Kb4 a7 Bd7 e6 Qd5 e7 Bc8 Qa4+ Kc5 Nf3 Qc4 Ke5 Qa2 Bb5 Nb3 Qa6 Kb4 Kd6 f6 Rg1 Bg4 Ne6 Nd7 Nbd2 b1B Nf1 Bg6 Kc7 Qe2 Nh4 Bf7 Nf4 Ne5 Ra5 Bd7 Nf5 Qe3 Rg5 Nd3 Nh5 Ndc1 Rc8 Bc6 e8N Ne7 Ra8 Rg8 h8N Ng6 h7 Bc5 Rd8 Rf8 Rd7 Rg8 Re7 Bd7 Re4 Bc6 Ned6 Re8 Nc8 Re5 Nce7 Bd7 Bd3 Ba4 Nd5+ Ka3 Be2 Ka2 Bb5 Nh4 Ng6 Kb1 Nf8 Ng6 h8Q Re6 Rh4 Re4 Qh6 Rg4 Qh8 Rg1 Re4 Rh1 Nhf4 Rg1 Qh4 Rh1 Nh5 Rg1 N1g3 Rd1 Nf1 Bb6+
5r1B/p1Q1pR2/Q1QB4/pB3r1Q/1n2Qp1R/6r1/NpbKPb1b/1k5b w - - 0 1 legal: proof: f4 g5 g4 h5 a4 b6 a5 c6 Bg2 Qc7 Bh3 Qe5 Bg2 hxg4 Bf1 g3 Bg2 g4 Bf1 Qg5 fxg5 Rh7 Ra2 Rh6 Ra1 Rh8 c4 bxa5 d4 Kd8 b4 Bh6 b5 Rh7 Na3 Bf8 d5 c5 Nc2 Rh8 Nb4 cxb4 c5 Nc6 dxc6 Ke8 h4 d5 b6 f5 h5 Kf7 h6 Ke6 b7 Ke5 b8Q+ Ke4 c7 g2 h7 g3 c6 b3 g6 b2 g7 d4 Qd3+ Ke5 Kd2 Bb7 Nh3 g1R Nf4 g2 Nd5 Nf6 g8Q Bg7 Nb4 Nd5 Na2 Nb4 Qf7 Rf8 h8B Kf4 c8Q+ Be5 Qa6 d3 c7 Ke4 Qfg6 Bh2 Qh5 Rf6 Qce6+ Kd4 c8Q f4 Qbc7 Bf3 Qcc6 Be4 Q8c7 Rf8 Qef5 Bg3 Rh4 Bh2 Kd1 Bd5 Bd2 Bf3 Be1 d2 Rc1 Ke3 Rc5 R6f7 Qfd5 Rf5 Qdc4 Nd3 Kc2 d1B+ Kc3 Bc2 Qb4 Rg5 Rf5 Bd5 Qba4 Nb4 Rf7 Rf5 Bd2+ Kf2 Be3+ Ke1 Bc5 Kd1 Bd6 Nd3 Nb4 Kc1 Na2+ Kb1 Qe4 Nb4 Kd2 Rh1 Qac8 g1B Bg2 Bf2 Q8a6 Rg1 Bh3 Rg3 Bg4 Re5 Bd7 Rf5 Qc3 Rg2 Bb5 Rg7 Q3c6 Rg3 Qd3 Bg2 Qde4 Bh1
2kb2n1/Knr1BN1B/1rp1R1Nb/2P1Q3/Nq2r1N1/1q1Nn2b/2q4n/1B4Q1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 h4 f5 d4 e5 c4 a5 d5 a4 g6 a3 g7 g3 b6 a2 c5 a1B b7 e3 Kd3 g2 Kc4 e4 Kb5 e2 h5 e1R h6 f3 d6 f2 h7 e3 Nf3 g1N Bd3 f1Q Rh6 e2 Nh2 f4 Ng4 f3 Nc3 f2 Na4 Ra7 Bg5 Nf3 Be7 Bf6 Bb1 Nc6 b8Q Nh2 Qd4 Bg5 Re6 Qh3 Qa1 Rb7+ Ka6 f1N b5 Qb3 b6 Na5 Qd4 c6 Qg1 Rc7+ b7 Ne3 Ka7 Nf6 g8B Bfh6 Bf7 Rf8 h8N Ng8 Bfg6 Qe8 Bh7 Qg6 Qf2 Rf4 Qg1 Qgc2 Ng6 Rb4 Qg3 Rb6 Qg1 Ke8 d7+ Kf7 d8N+ Ke8 Bd6+ Kd7 Nf7 Bd8 Be7 Rc1 Qf1 e1Q Qg1 Qeb4 Rf6 Nd5 Nf2 Re1 Nd3 Re4 Rd6+ Ke8 Rf6 Bh3 Re6 Rc8 Qe5 Kd7 b8N+ Ke8 Qa1 Ne3 Nd7 Nb7 Nd7e5 Rc7 Ng4 Kd7 Qe5 Kc8
BN1r3k/2q3N1/4Q1Qr/rp1R3n/Q5RK/QPbr1qb1/1n1q4/1n2Q1Rb w - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 a3 b3 exf6 Nc3 f5 Bb2 axb2 Nb1 f4 Kf2 f5 a4 Kf7 g4 Kg7 d4 h5 e4 c5 d6 b5 d7 f3 a5 f4 e5 c4 d5 h3 a6 h2 a7 h4 e6 c3 e7 c2 e8Q c1B g5 h3 g6 Bd2 d6 Bc3 Bg2 Qc7 d8Q Bb7 d7 Bd6 Qde1 Nf6 Q8e6 Na6 Ra4 Nh5 Ne2 Nb4 Na3 b1N Rg1 h1Q Nc4 h2 Qh4 Rhd8 Na5 Kh8 Ng3 Be4 Nc6 Nd3+ Kf1 f2 Nb8 Nb2 Nf5 Bb7 Ng7 Bd5 Ke2 f1R Qhe7 Bde5 Qa3 f3+ Ke3 f2 Rg4 Bg3 Ke2 Re8 d8R Be4 Rd5 Rd8 Bf3 Qg2 Qa4 h1R Qa3 Bd3+ Ke3 Bc4 Ke4 Rh3 Kf5 Bd3+ Kg5 Be4 Qe2 Rd1 Qe1 f1Q Qa4 Rh1 Qa3 Bh2 Kh4 Rd3 Rf5 R3d7 Ne8 Bd6+ Kg5 Nf4 g7+ Kh7 Re5 Rh6 Rc5 Nh5 Kh4 Qd2 Re5 Bg6 Rf5 Bf4 Bc6 Rd3 Rd5 Be4 Bb7 Rf6 Bc6 Bh1 g8Q+ Kh6 Qgf7 Qf3 Ng7 Kh7 Bb7 Rh6 Qfg6+ Kh8 Nd7 Rac8 a8Q Bfe5 Q8a4 Ra8 Nb8 Ra5 Ba8 Bg3+
N5q1/p3Q2Q/4b1Rq/PQ1r2Rr/2n1rb1Q/2nRbQn1/k2q2K1/2B2b1N w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 h4 Kd7 a4 Ke6 c4 g5 f4 b5 Kf2 e3+ Kg3 b4 d4 b3 c6 b2 c5 Kd5 c7 Kc4 c6 e5 d5 e2 f5 e1Q+ Kh2 g3+ Kh3 e4 d6 e3 h5 e2 a5 Nf6 d7 g4+ Kh4 Ne4+ f6 Nc3 h6 Qd2 h7 e1R Nh3 g1N Ra3 g2 Kg3 Re4 f7 Qh6 Qf3 Bd6+ Kf2 Nge2 f8Q g1B+ Kg2 g3 Nd2+ Kb4 Qe7 b1B Nc4 Be3 Rg1 Bd3 Nb6 Qg8 d8R Be6 c8Q Nd7 c7 Ne5 Qa6 Nc4 c8Q Rb8 Qh4 Bdf4 Na8 Rb5 Qc7 Rd5 Nf2 Qgg5 Ra1 Kb3 Nh1 Qg8 Rb1+ Ka2 Qce7 Qgg5 Rb6 Qg8 Kf1 Qgg5 Qb5 g2+ Ke1 Ng3 Rdd6 Rc8 h8Q Be2 Qhh7 Rcc5 Rd8 Qg8 Rd7 Rh5 Rd3 Rcd5 Ra6 Bg4 Rg6 Be6 Rf1 g1Q Rg5 Qg2 Rg1 Bf1 Rg6 Qc2 Rg2 Be2 Rg1 Bd2+ Kf2 Bde3+ Kg2 Qd2 Rg5 Rde5 Rd6 Rd5 Rd1 Qb2 Rd3 Qd2 Rb6 Bd7 Rf6 Be6 Rfg6 Bf1#
1bN5/1R5r/B2NK3/1bBN1rb1/1rp3kr/2q1Q1r1/B1Pbn2Q/BbBn4 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 d4 Ke6 h4 Kf5 b6 e5 g6 a5 h5 c5 g7 a4 h6 a3 b5 e3 Kd3 g3 Kc4 f3 d5 f2 d6 e2 Kd5 e1R b7 g2 b6 a2 d7 a1B h7 e4 Nc3 e3 Ba6 f1B Rh3 e2 Na2 Nc6 b8N Ra7 b7 Nd4 Rd3 Qc7 d8Q Be7 Rh3 Bg5 Bc4 Kg4 Bf4 f5 Be3 f4 Qd2 f3 Nd7 f2 b8B Nh6 g8B Rb1 Qe7 e1B Ba6 Nhf5 Ne2 g1R Nb6 Bc3 Rh6 Rb4 Ng3 Bb5 Ne4 f1R Qh2 Ne2 Bc1 Bcd2 Nac3 Bg3 Rf6 Be5 Rf7 Rg3 Rg7 Rb7 Ba7 Bcd7 Qe8 Qc8 Rf7 Bb8 Nd6 Ne3+ Ke5 Qc7 Nc8 Nd1 Kd5 Rff4 Qe3 Be6+ Ke5 Ba2 Rg7 Bb1 Ba2 Ba4 Ke6 Bb5 Nd5 Rf5 Rf7 Rg8 h8B Qc6 Be5 Rh8 Bb6 Rh4 Ba1 Qc7 Rh7 Qg7 Ba7 c4 Bc5 Qc3 Rg7 Rd7 Rf7 Rd8 Re7 Rdh8 Rb7 R8h7
1qbR4/Q4npQ/4R1rn/3n1BnK/2Q2bPr/B2QrQ2/2R1r3/kn3Nq1 w - - 0 1 illegal: No possible last move, all moves rejected
1q1k4/2RB2q1/BBQK1bbp/p2rQ3/2N3Qb/1nNQq3/nr5P/nrQ5 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 f5 d4 cxd4 e4 g6 f4 fxe4 f5 g5 Ra3 Bg7 Rf3 Bf8 Rf4 gxf4 Ke2 d5 g4 e5 c4 a5 g5 f3+ Kf2 d3 Kg3 d4 f6 f2 g6 d2 g7 h6 c5 d3 c6 e3 c7 e4 Kf4 e2 Ke5 e1Q b6 e3 b7 e2 b5 Nd7+ Kd5 Nc5+ Kc6 Nb3 b8Q Bf5 c8B Bg6 b6 Be7 b7 Na1 Qe5 Rb8 Qb3 d1N Nd2 Nc3 Nc4 Na2 Be3 d2 Qd3 d1R Bb6 Rb1 Qee3 Qc3 Qc1 e1B Ne2 Qcd4 Bfh3 f1Q Nc3 Qff2 Rf1 Qfe3 Bhd7+ Kf7 Rf5 Bh4 Rc5 Qg4 Kd5 Qf8 Rc7 Rh7 Bf5 Ke8 f7+ Kd8 Bfd7 Nf6+ Kc6 Qgf4 g8Q Ne4 Qg7 Qh8 Kd5 Bef6 f8Q+ Be8 Qgg1 Nd2 Qc5 Bg6 Qc6 Ndb3 Qg4 Qg5+ Kd6 Re7 Qge2 Re5 Qed1 Qgg3 Qh5 Qg7 Qg4 Ra8 b8Q Ra6 Bc5 Rb6 Bd4 Rb4 Qbb5 Rf5+ Qe5 Rb5 Ba6 Rf2 Qd5 Rfb2 Bb6 Rc5 Qc6 Qgf4 Na3 Qb4 Nc4 Qb5 Ba7 Qb8 Bb6 Rd5+
r1R2QQR/n1Q5/1rrn1Kp1/1r2q2Q/1pbbRB2/1PNQ1r2/b1q5/1B4k1 w - - 0 1 illegal: No possible last move, all moves rejected
b2Q4/1qn1p2N/Q3N1Br/2RRP2r/1N1qbRRb/R4b2/1K1pb2q/1n1k4 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 axb5 h6 d4 cxd4 Be3 Qb6 Bf2 Qd8 Bh4 gxf4 g5 Qc7 g6 Qd8 Bg5 hxg5 Kd2 a5 Kc1 f5 b4 d5 e4 Kd7 c4 Kd6 h4 Ke5 b6 d3 c5 Kd4 b7 Ke3 g7 a4 b5 g4 h5 a3 b6 g3 c6 g2 h6 a2 h7 f3 c7 f2 e5 f4 Nc3 d4 Nge2 g1Q Rh3+ f3 Nf4 Na6 b8Q d2+ Kc2 Bb7 Qb1 d1B+ Kb2 Kd2 c8N d3 Nd6 Nf6 g8R Bg7 Ncd5 Qc7 Nb4 Nd5 Nf7 Nc3 Ng5 Bf6 Ka3 Qh2 Qd8 Qb8 Qb3 Nc7+ Qa4 Ra6 Qa5 Bd5 Rc1 Ba8 b7 Re6 Bg2 f1B Qa6 f2 Be4 Bg2 Rg7 Qc8 b8R f1B Rb5 Qb7 Rd5 Rd6 Bf5 Be4 Rg3 Bfg2 Rf7 Be2 Rg4 a1Q+ Kb3 N3b5 Rcc5 Nc3 Rf8 Qag1 Kb2 Kd1 Rf7 d2 Rf8 Rg8 h8R Nb1 Rh3 Rh8 Ra3 Rh5 Nh7 Bh4 Rf7 Rf6 Ne6 Rfh6 Bg6 Bgf3 Rff4 Qd4+
1R2Bb1r/Bn3qQp/kb1R2RP/1pb1K1B1/2bQ3q/1n1R4/1N1q4/2nR2r1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 Ra4 fxg4 Ra2 Ba6 Ra1 Bc8 b4 c6 b6 Qd5 b5 Qd7 b7 Qd8 b6 Qd7 Na3 Qd8 Nb5 cxb5 Ke2 Kd7 Ke3 Kc6 Kf4 e5+ Kg3 g5 c4 a5 f4 e3 d4 e2 h4 e1N c5 e4 h5 e3 h6 e2 f5 a4 f6 a3 f7 a2 Nf3 Na6 b8R Nd3 b7 Be6 Rh3 Ne7 Nd2 Nc8 Nc4 Nd6 Nb2 Bc4 d5+ Kc7 c6 Kb6 c7 Nac5 c8R Ka6 Rc7 Nb3 Bg2 Qf6 Bf4 Ndc1 Qd4 Qg6 Rb1 a1Q Rcc8 Qa5 Rc6+ Qb6 Bd2 Qc2 Be3 Qd2 Rd8 Ra7 b8R Nb7 Rg6 Qe6 d6 e1Q+ Bf2 Ra8 d7 Rg8 Bc6 Qf5 Kh2 g3+ Kg2 Qfe6 Kf3 g2 Be3 g4+ Kf4 g1B Rf3 Bc5 f8Q g3 Qfg7 Qf7+ Ke5 g2 Rff6 Bf8 Rd6 Qh4 Bg5 Na2 Rd1 Bf2 Re8 g1B d8B Nac1 Bb6 Be3 Ba7 Bgf2 Red8 Bg1 Qf4 Bb6 Be8 Bf2 Rd3 B2c5 R8d6 Rh8 Rbd8 Rc8 Qd4 Rc7 Rb8 Rc6 Rdd8 Rf6 Rd5 Rf1 Rdd6 Rg1
r4r2/1b4Q1/3Kp1Qn/1n1bNq2/2qB1RBp/b4B1P/5RBk/2nb1QqB w - - 0 1 illegal: No possible last move
8/QBb3qp/1b2rNb1/q2nNN1n/K3Q1q1/3n1p2/n1RN1PR1/kN1r2R1 w - - 0 1 legal: proof: d4 b5 Kd2 g5 a4 e5 axb5 exd4 h4 gxh4 Ra6 c5 Ra2 c4 Ra1 c3+ Kd3 Bb4 Bg5 Bf8 Bd2 cxd2 Kc4 Ke7 Kb4 Kd6 c4 Ke5+ c5 f5 e4 a5+ Kb3 d5 g4 f4 g5 d3 b6 Kd4 c6 a4+ Ka2 h3 b4 a3 Kb3 h2 b7 a2 b5 Bd6 e5 Nf6 c7 Nh5 b6 Re8 g6 Bf5 c8Q Na6 b8N Nc5+ Kb4 Bc7 g7 Bg6 g8N Re6 Qc1 d1N b7 d2 Bc4 Ne3 Nd7 d1Q b8R Qg4 Qa6 Nd3+ Ka4 Qe7 Qa3 Qg7 Rb2 Rd8 Qa7+ Bb6 Ba6 f3 Bb7 Kc4 Qe7 d4 Nh6 Nd5 Nd2+ Kc3 Nf5 Bc7 Re1 a1B Ra2 Bb2 Ne2+ Kc2 Rhf1 h1Q Rg1 Qhh4 Qb4 Qhg5 Rg2 Bb6 Reg1 Bc7 Nf1 Kb1 Qe7 Bc1 Rc2 Ka1 Nc3 Bf4 Qb4 Bb6 Nb1 Bh2 Qe1 Qd2 Qe4 Qa5+ Kb3 Re7 e6 Bhc7 Ne5 Rd6 Na3 Red7 e7 Re6 e8N Nc1+ Kc4 d3 Qb8 d2 Nf6 d1N Qa7 N5c3 Nb1 N1a2 Kb3 Nb2 Qd3 Rd4 Qe4 Rd1 Nfd2 Nd3 Ndc4 Qc5 Ncd2 Nd5 Ka4 Qa5+
4Bb2/Q1pQq3/2Pr1n2/r1rq2nB/k1b2B2/b7/R3nQ1p/QNr2KQR w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 e5 d4 Nc3 f6 Nd5 fxe5 Ne3 dxe3 Qe2 e4 Qh5+ Kd7 Qd1 Ke8 c4 Kd7 b4 a5 f4 e5 d4 h5 g4 a4 b6 Kc6 c5 e2 f5 Kb5 f6 a3 d5 h3 b7 h2 d6 h4 f7 a2 g5 h3 g6 Rh5 g7 Qe7 d7 Ra6 d8Q Be6 Q1d3+ Ka4 b5 Bc4 b6 Nc6 b8Q Nf6 g8B Nd4 b7 Rd6 c6 Rg5 Kf2 e1N Qg3 Ne2 Bf4 Nf3 Qd7 Rh5 Qg2 Ng5 Nf3 e3+ Ke1 e4 Nd2 Bh6 Qg1 Bf8 Rc1 a1B Rc2 Bb2 Nb1 Ba3 Qbe8 Nc1 b8Q e2 Kf2 e1R Ra2 Ne2 Bg2 Red1 Bf3 R1d5 Qa7+ Ra5 Kf1 e3 Qed8 Ngh7 Q8c8 Rc5 Bh5 Ng5 Qca8 Nd4+ Ke1 e2 Kf2 e1R Bh7 Ree5 B7g6 Ne2 Kf1 Re3 Qdd8 Rc3 Qd7 Bg7 f8Q Bh6 Qg8 Bf8 Qf2 Rc2 Be8 Rc3 Rg1 h1Q Qg7 Qd5 Rh1 h2 Qg8 Nge4 Qgg1 Rc2 Q8b8 Ng5 Qb2 Rc3 Qa1 Rc1+
2Bq1nrB/pn1q2r1/Pb2BK2/3qQ1NQ/2qn1N1N/5B2/1pb3Rb/6Bk w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 a4 hxg4 Ke2 f5 Ra3 f4 Rg3 fxg3 Ke1 Qc7 Bd3 Qb6 Bf1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 b5 d4 e5+ Kg6 b4 f4 e3 h4 Ke4 c4 g2 a5 e2 c6 e1Q c5 g3 a6 b3 c7 b2 d5 Nd7 c6 Bd6 f5 Rh7 h5 Nc5 h6 Qd2 f6 Ne7+ Kf7 Ng6 Qh5 Bf5 c8B Nf8 c7 g5+ Kg8 g4 f7 Nb7 Ne2 Kf3 Nf4 g1B Rh2 g2 Nc3 e4 Be6 e3 c8B e2 Ne4 e1N Ng5+ Kg3 Bd3 Bb6 Be4 g1Q Bf3 Qh1 Re2 Qc2 Be3 Qc4 Bg1 Bc2 Rh2 Bb8 d6 Rg7+ Kh8 Qg2 d7 Qd2 h7 Qdd5 Bh1 Nf3 Re2 Qdc7 d8Q Qcd7 Qf6 Nd4 Bf3 Be5 Ng2 Bd6 Nh4 Bf4 Qe5 Qd8 Bf2+ Kh2 Rd2 g3 Re2 g2 Bg1+ Kh1 Rd2 Nd7+ f8N Bh2 Re2 Qe7 Nfg6 Nf8 Nf4 Qed7 Nf7 Rg4 Ng5 Qd8 Kg7 Q8d7+ Kf6 Rg3 Ngh3 Rg7 h8B Rb8 Bf2 Ra8 Ng5 Rb8 Bfg4 g1Q Bf3+ Qg2 Bg1 Q5d6 Bg4 Qgd5 Rg2 Ra8 Bf3 Q6c7 Bf7 Qcd8+ Qe7 Q8e8 Qe5 Ng6 Be6 Qdc7 Nfh3 Qea4 Bcd7 Rag8 Nf4 Nf8 Bc8 Qac6 Bg4 Q6d7 Bf3 Qcd8#
2N3nr/2QnR1B1/2pR1B1R/1b1B1pr1/q1nqnbk1/2b4r/RR2KP2/5Q2 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 Na3 d6 Nc2 d5 axb5 dxc4 d5 Qf6 Nd4 exd4 Bd2 Qd6 Bc1 Qd8 b4 Kd7 e4 a5 g4 h5 b6 a4 e5 h3 b5 h2 b7 c3 b6 d3 d6 Ke6 g5 Kf5 e6 a3 g6 a2 e7 c6 e8R c2 g7 h4 d7 d2+ Ke2 h3 Bb2 c1B Nf3 Ra5 Re7 Kg4 Nh4 Rg5 Bg2 f5 Qf1 d1N Ng6 Bf4 Bd5 Ne3 Rd1 a1Q Bf6 Na6 b8B Nc5 b7 Nc4 Bbe5 Qa4 b8R Ba6 Rb2 Bb5 Ra1 Qb6 d8Q Nd7 Raa2 Qc5 Qc7 Qd4 Re6 Bd6 Ne7 Bb4 Nc8 Bc3 Re7 Ndb6 Qb1 Nd7 Rd1 h1N Qc1 Nh6 g8R h2 Rg6 Ng8 Rdd2 Rh3 Qf1 Rh8 Rh6 Ng3+ Ke1 Ne4 Ke2 h1R Bg7 Rh2 Bef6 Rh3 Bf7 Qb6 Rd6 Qc5 Bd5 Qd4
Bn2b2k/N3p1nq/1Kr1Q3/1pQq2b1/3QP1Rr/4R2Q/BB1q1nb1/Q2q4 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 Nc3 f6 Ne4 fxg5 Ng3 hxg3 Qc2 g4 Qa4+ Bd7 Qd1 Bc8 e4 Kf7 Ke2 b5 Ke3 g5 Kd4 Kg7 Kc5 b3 d4 g2 a4 g3 f4 c6 h4 g4 d6 b2 d5 b1B f5 Ra6 d7 Rb6 a5 Rb7 h5 Rh6 a6 Rc7 d6 Ba2 a7 Bf7 a8B Be8 Ra3 Nf6 Kb6 c5 Rh4 c4 Re3 c3 Bb2 c2 Bc4 c1Q Ba2 Qd2 Nf3 g1Q Qa1 g2 Nd4 g3 Nc6 Qh1 Na7 g1Q Rf4 Rh8 h6+ Kh7 Rh4 g2 Rf4 Nh5 Rh4 Ba6 f6 Qb1 f7 g1N Reh3 Bg7 f8Q Bf6 Qf7+ Ng7 Re3 Nh3 Qh5 Qbe1 Qc5 Nf2 Rf4 Bg5 Rh4 Kg6 h7 Bc8 Rf4 Qed1 Rh4 Rf8 h8Q Rf3 Rf4 Qh6 Qg8 Rh3 Qgc4 Kh7 Qf1 Bb7 Qh1 Bd5 Rg4 Rh4 Qh3 Bc4 Rb3 Qe6 Re3 Qc8 d8Q Kh8 Qd7 Bf1 Qdc6 Bg2 d7 Qeb3 d8Q Qf5 Q6d6 Qh7 Qe6 Qc4 Qd3 Qd5 Qdd4 Rc6+
N1bQB3/1Qp5/Q4b2/q2RRbqr/1Rr1Nn2/k1PQ1p1n/3KQb2/n1q5 w - - 0 1 legal: proof: e4 d5 g4 dxe4 f4 b5 a4 g5 axb5 h6 b3 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd4 g6 Qd8 Bg5 hxg5 d4 Kd7 h4 Kd6 b4 a5 d5 f5 b6 e5 h5 g4 b7 e3 b5 Kc5 d6 Kb4 d7 e2 g7 g3 h6 g2 h7 a4 b6 f3 Rh6 e4 Na3 f2+ Kd2 e1B+ Ke3 f4+ Ke2 e3 Kd3 f3 Re6 e2 Nc4 a3 Nh3 g1Q Re5 a2 Ng5 Ne7 g8Q Na6 b8Q Bg7 b7 Nd5 Nb6 Ka3 Qe8 Bf6 Ne4 Nf4+ Ke3 Nc5 c3 Ra4 Na8 Rc4 Qd3 Nh3 Rd1 a1N Qe6 Qe8 d8Q Qb5 Qa6+ Qa5 Qba7 Qg4 b8R Ne6 Rb4 Nef4 Q7b7 Qg5 Qe8 Ng1 Bh3 f1B Bd7 Bf2+ Kd2 Bh3 Qee6 Bf5 Be8 Ngh3 Qe7 Rg8 h8Q Rg6 Qg8 Rh6 Qge6 Rh4 Qed8 e1Q+ Kc1 Qf1 Kd2 Rc6 Qec4 Rh5 Qe2 Qh1 Qcd3 Rc4 Q3d6 Ng2+ Kd3 Nb3 Kc2 Ngf4 Rd3 Na1+ Kd2 Qhg1 Q6d7 Qb1 Qdb5 Rc5 Rdd5 Qf1 Qbd3 Rc4 Ba4 Qh1 Be8 Qc1+
1RQB1Q2/n2b1N2/R2N1np1/NK1Nb1Pb/2r1qRN1/q5r1/b2b3p/1b1k4 w - - 0 1 illegal: No proof kernel
1QN4B/1b1B4/1pB1n2p/n1k3qn/2r1Br1Q/1PQ1nr2/1r1b2R1/K2nN1B1 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 b3 gxh4 Nc3 a5 Rb1 a4 Rb2 a3 Nb1 axb2 a4 Ra6 Nc3 Ra8 g4 Kd7 d4 Kd6 Kd2 b1N+ Kc2 f5 Kb2 c5 e4 h6 g5 b6 a5 c4 g6 f3 g7 h3 a6 h2 e5+ Ke7 a7 f2 e6 Kd6 e7 f4 e8B f3 Bg2 f1N Qd3 f2 Bd7 Bb7 Be4 Na3 Nf3 Ne3 Ne1 f1R Rg1 h1N Ka1 Na6 Rg2 Nf6 g8Q Nf2 Qg4 Nc7 Qh4 Rc8 a8B Nfd1 Qd2 Rf4 Nb5+ Ke7 Qc2 c3 Na7 Kd6 Qd3 c2 Qc3 Nac4 Bd2 Nf1 Be3 Ne6 Bf2 Na5 Bg1 Rc4 Nc8+ Kc7 Rd2 Nh5 Rg2 Qg5 d6+ Kd8 d5 c1R+ Ka2 Rc2+ Ka1 Ba6 Bac6 Nfe3 Be8 Rb2 d7 Kc7 d8Q+ Kb8 d6 Bb7 d7 Bb4 Qc7+ Ka8 d8B Rhf8 Bf6 Rf3 Bg7 R8f4 Qd8 Kb8 Bh8 Ka8 Qcd4 Bd2 Bed7 Kb8 Qf8 Kc7 Qdg7 Qg6 Qc3 Qg5 Ne7 Kd6 Qb8+ Kc5 Nc8 Qg7 Nd6 Qe5 Nc8 Qg5
K2N2qr/Q1pN4/2B2r1b/2bRRR2/1b1Q4/2P1Q1nb/pQ3Qnb/4qb1k w - - 0 1 legal: proof: e4 d5 g4 dxe4 f4 b5 a4 g5 axb5 h6 b3 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd4 g6 Qd8 Bg5 hxg5 Kf2 Kd7 d4 Ke6 h4 Kf5 b6 a5 g7 e5 h5 f6 b7 g4 h6 a4 h7 a3 d5 f3 Ke3 g3 b4 Kg4 b5 f5 d6 g2 b6 Kg3 d7 f2 Rh5 a2 Qd3 Na6 b8Q Nh6 b7 Nb4 Nf3 g1B Na3 Bc5+ Nd4 Ra6 Nc4 Bh2 Re1 Rf6 Qa7 Qg8 Bg2 f1Q d8R Be6 Qd2 Nd3 b8Q Nf4 Rd5 Bc8 Nb6 Qh1 Bf3 Ng2+ Ke2 f4 Nc6 e3 Kd3 e4+ Kc4 e2 Kb5 e3 Rhf5 Be6 Ka6 Bd7 Be4 f3 Kb7 f2 Nd8 f1B Ka8 Be6 Nd7 Kh3 Rg5 Nf5 Qb2 Ng3 Rdf5 Qg1 Bc6 Qh1 Rd1 e1B Qf2 e2 Rdd5 Beb4 c3 e1B Rfe5 Bd2 Rgf5 Bh6 Qe3 Qf7 g8Q Qg1 Qgg5 Qg8 Qgf4 Qf2 Qfd4 Qe1 Qef2 Bg1 Qde3 Kh2 Rf4 Kh1 Rff5 Bh2 Qef3 Qg4 Q3e3 Rhf8 h8Q Qg8 Rh5 Bh3 Rhf5 Qh7 Qg7 Rh8 Qg4 Qf7 Qgd4 Qg8
2Qb2B1/N2r2R1/Qb1R1qR1/1nnr1n2/4N1Rp/3b3P/n1k1p1K1/3RbrQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 f4 c5 f5 cxd4 Bf4 gxf4 Kf2 Kf7 c4 Kf6 g4 Ke5 b4 h5 g5 a5 c5 d5 b6 e3+ Kf3 a4 h3 a3 b7 e2 c6 e1B f6 d3 c7 Kd4 g6 e5 g7 h4 f7 e4+ Kg2 e3 b5 f3+ Kh2 d2 b6 e2 Ra2 Kd3 Qc1 d1N Rc2 a2 Rc4 a1B Rg4 f2 Bg2 f1R Na3 d4 Nf3 Nc3 Ng5 Nd7 b8Q Nh6 g8R Rh7 b7 Nc5 Bd5 Nf5 Rg6 Qf6 Qa7 Nb5 b8R Ba6 c8Q Be7 f8R Bd8 Bg8 Rd7 Ne4 Bac3 Kg2 Bca5 Qh6 Bab6 Rb7 Rd5 Rc7 Rb8 Re8 Rb7 Rcg7 Rc7 Re6 Rcd7 Nd2 Kc3 Rd6 d3 Ne4+ Kb2 Qe3 d2 Qg1 d1N Qaa8 Ndc3 Qa7 Nc7 Nb5 Na2 Qaa8 Kc2 Na7 Bd3 Qa6 Bg3 Q8c8 Nb5 Qe3 Rf3 Rd1 Rf1 Qg1 Be1
N6k/1pN2Bq1/2QnN1r1/2NR1R1b/4q2n/1rr1b2N/pPQ3qr/3KQq2 w - - 0 1 illegal: No proof kernel
3n3K/r1rqQ1N1/R1R5/p1BNpqQ1/R4qn1/P1R1b2b/N6p/1Rb1k1r1 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 h5 f4 Ke2 f3+ Ke3 g6 Bd3 gxh5 Be2 Qa5 Kd4 fxe2 Kc4 Qd8 Kc3 h4 d4 Kf7 f4 Kf6 g4 e1Q+ Qd2 a5 c6 h5 d5 b5 Kd4 e6 c4 b4 g5+ Kf5 g6 Kg4 Ke5 Kg3 c5 h3 f5 h2 d6 b3 g7 h4 c7 b2 f6 h3 f7 e3 d7 e2 c6 Kf2 Qg5 Qe8 d8Q Qd1 Nc3 b1Q Ba3 e1B Nge2 Rh7 Nc1 Bc5 f8N Qg4 Nd5 Nh6 Kf6 e5 g8R Be3 Ne6 B1d2 Rg6 Ra7 Be7 Bd7 c8R Qd4 c7 Nc6 Re1 h1R a3 h2 Na2 Qc2 Rab1 Bf4 Re4 Rg1 Bd6 Qe3 Ra4 Bc1 Bf8 Ke1 Bd6 Rh8 Kg7 Qg3 Qdf6 Nd8 Be7 Rf8 Kh7 Qcd3 Ng7 Rf7 Bd6 Qe7 Kh8 Bh3 Qe6 Be3 Ra8 Qf5 c8R Qgf4 Rc3 Rd7 Bc5 Ng4 Ra6 Ra7 Rh6 Qc7 Rf6 Rd7 Qe7 Qc6 Rd6 Rdc7 Rh6 Qce6 Rf6 Qc8 Rfc6 Qcd7
2Q1NbQ1/2Q3B1/2rQp1Q1/1n2n1Kb/1p1bR1N1/3rr2R/bPp1b3/5kqN w - - 0 1 illegal: No proof kernel
3r2r1/Q1NR4/1prNb2p/Nn1p2rn/K3Rqrb/1B1k1N2/1b1N1R1P/2Q5 w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 f5 a5 b6 axb6 fxg4 b4 Be7 b7 Nc6 b8N Bb7 b5 Bc8 b6 Bc5 b7 Nb4 Bd2 Na6 Ba5 Bf8 Bb6 cxb6 Kd2 Ke7 f4 Kf6 e4 d5 c4 g5 Kc2 h6 Kb3 d3 c5 g3 e5+ Kf5 e6 Ke4 f5 g4 e7 d2 e8Q+ Be6 c6 g2 f6 g3 f7 Qd6 c7 Qf4 c8N Nf6 Be2 Be7 f8R Nh5 Qf1 d1R Nc6 Rc1 b8N Bh4 Qf7 Nc7 Ka4 a5 Nf3 g1R Bd1 g2 Bb3 Nb5 Na6 Rg8 Qa7 Rc5 Qc1 Kd3+ Ncd4 Rc6 Nbd2 Rg5 Nd6 Rd8 Nc7 Rg4 Ra2 Rg5 Rf7 Rgg8 Rd7 Rg4 Bd1 Rg5 Kb3 a4+ Kb4 a3 Bb3 Rgg8 Ka4 Rg4 Rc2 a2 Rb2 a1B Ra2 Rd1 Re1 g1R Re4 Rgg8 Rb2 R1g4 Rc2 Rdg1 Ra2 Rc2 Nc6 Bb2 Na5 Rc6 Nf1 Bh8 Rf2 Bb2 N1d2 R1g3 Rf1 R4g5 Rf2 R3g4
2bBr2B/2bBpBr1/2npP1QQ/q1n2r2/1N2pQ2/bR4r1/1R6/nBK3k1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 axb5 c5 h4 cxd4 e5 gxh4 Nd2 Kf7 Ne4 fxe4 Be2 Ke8 Bd3 Na6 Bf1 Nb8 Kd2 Kf7 b4 Ke6 f4 Kf5 g4+ Ke6 c4 a5 b6 h5 g5 Kf5 e6 h3 c5 h4 b5 a4 b7 d3 g6 a3 g7 a2 b6 h2 c6 h3 c7 Nf6 g8B Nc6 b8Q Bh6 b7 Ra5 Rb1 a1B Nf3 Kg4 Nd4+ Kg3 Qg4+ Kf2 Nc2 Bb2 Nb4 Ba3 Rb3 Rf5 Bf7 Re8 Qg6 d6 Bb2 Nd7 Bh8 Nc5 Qa8 Bg7 b8B Bd4 Kd1 d2 Bd3 Bc3 Bb1 Bd4 Rg1 h1R Qa5 Rh2 Rg2+ Kf1 Kc2 d1N Ba7 Bg1 Bb6 Ne3+ Kd2 Nc2 Qh6 Rh5 f5 Na1 f6 Rf5 Kd1 Bd4 Rgb2 Rg2 Kc1 h2 Qa8 h1R Qb8 Bd7 c8B Rhg1 Ba5 Qb6 Qg6 Qa6 Bd8 Rg3 Qb6 R1g2 Qb5+ Kg1 Qf1+ Kh2 Qf4 Qa5 Bg8 Bf2 f7 Kg1 f8Q Bd4 Q8h6 Bf2 Ba6 Bc8 Bf7 Be1 Qf6 Rg7 Bb5 R2g3 Qfg6 Qb6 Na6 Ba5 Nb4 Qa7 Ba4 Bc7 Bb5 Qa5 Ba4 Na7 Bd7 Nc6
N1r1nR2/2rnbB1k/2R3Rp/1q1nK1Qp/2b5/BR5P/4prbB/1Q3R1r w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 f5 Nc3 fxe4 Nce2 g6 Nf4 Qb6 Nh5 gxh5 Ra3 Qc7 Ra1 Qd8 Kd2 Kf7 f4 Kg6 c4 d5 g4 e5 b4 a5 g5 a4 h3 h6 b6 e3+ Kd3 a3 f5+ Kh7 f6 a2 f7 e2 b5 e1R c5 Bb7 g6+ Kg7 c6 Ra7 c7 Re2 c8R Qg5 Ba3 Nf6 Rc6 Be7 f8R Ne8 Nf3 Nd7 Rg1 Rf2 Qb1 Rg8 Nd2 e4+ Kc2 e3 Kd3 Kh8 g7+ Kh7 Nc4 e2 Bg2 Ba8 b7 Qe5 b8B Rc7 b6 Qf5+ Kd2 d3 Ke3 d2 Kd4 d1B b7 Bb3 Nb6 Bc4 Be4 Rh8 Rgg6 Rg8 Bc2 Rh8 Bb3 Qg5 Qc1 Rg8 Rb1 a1R Qc2 Qf5 Rf1 Rh8 Qc1 Qb1 Ba2 Qb5 g8R Rb1 Qg5 Re1 Rf3 Rc1 Rb3 Re1 Ke3 d4+ Ke4 d3 Rf8 d2 Kd4 d1N Ke4 Rc8 Bh2 Rc7 b8Q Nc3+ Kd4 Bb7 Na8 Nd5 Ke4 Rc1 Kd4 Rc3 Ke4 Rg3 Kd4 Rg1 Ke4 Rh1 Kd4 N7b6 Ke5 Nd7+ Ke4 N5b6 Rg3 Qc5 Rfg8 Bb5 Bf7 Bc4 Re3 Qf5+ Kd4 Ng7 Rce6 Bbd5 Rc6 Bg2 Qb7 Qa5 Qb8 Nd5 Qb1 Qa4 Rb3 Qb5 Rd8 Nc5 Ke5 Rg8 Rd7 Rgc8 Rd8 Nd7+ Kd4 N7b6 Rf8 Ne8 Ke5 Nd7+
Q4N1B/1p1BrbKb/3qpR2/2kpR3/1b2rB2/n1B3B1/1P1rQ2n/bn2Q3 w - - 0 1 illegal: No proof kernel
7N/1pp1Qnqb/b1P2Q2/1r1Q1K1Q/4rb1r/3nQ1p1/R2B2r1/R2NNk1q w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 h3 Bg2 hxg2 Bg5 fxg6 Be3 g5 Bc1 g4 Kd2 Ke7 Ke3 Ke6 Kf4 d5 h4 g6 c4 g3 a4 d4 e4 d3 c5 d2 a5 b3 c6 b2 a6 Qd7 h5 Qg7 a7 Nh6 Nf3 g1Q Nc3 b1R Ra2 g2 Ne1 Nf7 h6 Bd6 h7 Na6 Qh5 d1B Bd2 Be2 Nd1 Nb4 f3 Re8 h8N g5+ Kg4 Rb8 a8Q Ba6 f4 Nd3 Qa7 Rb2 Qd4 Rb5 Qc5 Qh2 Rg1 Qh1 f5+ Ke7 e6 Kf6 e7 Be6 Qc4 Ke5 Rf1 Bd5 f6 Rbc8 Qb3 Kd4 e5 g1R+ Kf5 g4 e6 Rg2 Rg1 g3 Rf1 Nd8 f7 Bf4 f8Q Nf7 Rg1 Red8 e8Q Ra8 Qee7 Re8 Qea3 Rad8 e7 Rd6 Qg4 Rh6 Qd6 Rh4 Qh5 Nfe5 Qdf6 Bg8 Qa3 Kc4 Qad6 Nf7+ Qde5 Rd8 e8Q Rd4 Qf8e7 Re4 Nf3 Ne1 Q5c5+ Kd3 Qd5+ Ke2 Rf1 Nd3 Ne1+ Rg4 Rf3 Rh4 Ra1 Nb2 Rfa3+ Kf1 Ra4 Nd3 R4a2 Rd4 Qe3 Re4 Qee7 Bh7+
4N2q/5R1p/2rbb1pk/q1B1pQr1/KQ5P/1QNr1b2/bQ3N2/2nQnR2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 f5 gxf5 a5 Bg2 axb4 Bh3 Na6 Bf1 Nb8 Na3 b3 Nb1 c6 Bb5 cxb5 Qf3 b4 Qg4 Ra5 Qd1 Ra8 f4 Kf7 h4 e5 d4 b5 Kd2 g6 a4 Kg7 c4 b2 Kc2 e3 Kb3 e2 f6+ Kh6 f5+ Kh5 c5 Be7 a5 Qf8 f7 Nd7 f6 Ra6 d5 Nh6 d6 Rc6 a6 Nf5 a7 Ne3 a8N Ng2 Be3 Ne1 Nc3 b1B Ra7 Be4 Nc7 Bf3 Nh3 Qg7 Qc2 Rd8 f8Q Qh8 Qg8 Bf8 Bg1 Kh6 f7 Be7 Qb2 Bf8 Ka2 b3+ Ka3 b4+ Ka4 Be7 Nf2 Bf8 Qc2 b2 Ne8 b1B Qb2 b3 Rc7 Be7 Ra7 Ba2 f8Q+ Kh5 Qf5+ Kh6 Qg4 Bf8 Qb4 Be7 Q2a3 b2 Qgb3 b1R Qab2 Rd1 Rc7 Rd4 Ra7 Rg4 Rc7 Nb8 d7 Rg5 Ra7 Na6 Rc7 Re6 c6 Bd6 Ra7 Rf6 c7 Re6 Nfe4 Rf6 Bc5 Re6 Rf1 Rf6 Qb5 Nb4 Nf2 Nbd3 Q5b4 Nc1 Rb7 Re6 Ra7 Ba6 c8Q Bc4 Qc6 Rf6 Qe4 Be6 Qf5 Ng2 Bb6 e1Q Bc5 Qd2 Rc7 Ne1 Rb7 Rc8 d8Q Rc6 Rf7 Qd5 Qfb1 Rf4 Qf6 Rd4 Qff5 Rd3 Q1c2 Rb6 Qd1 Rc6 Bd4 Qc5 Be3 Qb6 Bc5 Qa5+
Qrn5/2R2QRb/nR1N1qp1/1N1B1p2/krn5/2Rqb1n1/bR1p2P1/2NK4 w - - 0 1 illegal: No proof kernel
1RRq1R2/B7/q2k2p1/2p1b3/1B1pb1n1/QBrn1n1r/B1rBQ1P1/3N1Kr1 w - - 0 1 illegal: No possible last move, all moves rejected
6qr/Kp2Q1B1/4npbN/3p1rb1/q4Q2/1kNB2BB/1bb2PRn/1r3B1Q w - - 0 1 legal: proof: c4 a5 h4 g5 b4 gxh4 Rh3 axb4 Rh1 d5 cxd5 e6 a4 Kd7 d4 Ra5 d6 Ra6 d5 Qe8 Ra3 Ra8 Rd3 Qd8 Rd4 Ke8 d7+ Ke7 Rd3 Kd6 Rd2 Kc5 d6 Kc6 Rd5 exd5 Kd2 Kc5 Kd3 h5 g4 b3 e4 Kb4 Kd4 f6 g5 h3 a5 c6 a6 h4 a7 h2 g6 h3 e5 b2 e6 Qe7 d8B Nh6 g7 Na6 g8B Qg7 e7 Bf5 e8B Ng4 d7 Rh5 Bh6 Bc2 Be6 Kb3 Bg6 Nc5 Nf3 Rf5 Nc3 b1R Ng5 Qg8 Rg1 h1B Nf7 h2 Bc7 Be4 d8Q h1Q Rg2 Qh4 Bg7 Nh2 Nh6 Bd6 Qe1 Bf4 Qe7 Bg5 Bg3 Qg4 Qe3 Rd8 Qf4 Rb8 Bc8 Ne6+ Ke3 c5 a8Q c4 Qa1 Qf7 Bd7 Rh8 Bc8 Qg8 Bd7 Nd8 Kd4 Qd1+ Kc5 Ne6+ Kb6 Qg4 Na2 c3 Ka7 Bed3 Qe5 Qc4 Qf4 Be4 Bh5 Qb4 Bhe2 Qa4+ Ba6 Bcd3 Bc8 c2 Nc3 c1B Bd7 Bc2 Bd3 Ba3 Bc8 Rb2 Qh1 Rb1 Bf1 Bb2 Bd7 Re5 Bd3 Bg6 Bf1 Nc7 Bh3 Ne6 Bd3 Rf5 Bf1 Qc6 Bad3 Qa4+
1R4r1/nR1rkB2/2qrp1QN/K2nr2B/2bQ4/2pQB3/1QpnP3/bQ3q2 w - - 0 1 legal: proof: f4 b5 g4 g5 c4 d5 a4 dxc4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 d4 a5 Kd2 c5 Kc3 f5 b4 f3 h4 f4 d5 a4 b6 g3 g6 a3 d6 a2 h5 e6 d7+ Ke7 g7 f2 h6 g2 b5 f3 b7 Ra7 b6 Nf6 g8B Nc6 b8Q Qe8 b7 Ng4 h7 Bg7+ Qd4 Ra6 Rb1 a1R Nh3 g1R Ng5 Nf6 Nf7 Na7 Be3 Rg5 Qg3 Re5 b8Q Rd6 Rb7 Rd1 Bg2 f1Q Nh6 f2 Bf7 Rg8 Bf3 Bh8 Qg6 Nd5+ Kb2 c3+ Ka3 c4 Ka4 c2 Bh5 Bg7 h8Q Rd2 Ka5 Rd1 Rc7 Ba6 Qb1 Qc8 Rb7 Qc6 Rb8 Nb4+ Qd5 Re4 Rh3 Qh1 Rh4 f1N Rb6 Ba1 Qc3 Re5 Qe1 c3 Qb5 R6d5 Qd2 Qg2 Rb8 Qf2 Qdc1 R1d3 Qcb2 Nd2 Rc4 Qg2 Rc5 R3d4 Qbd3 Bc4 Rcb5 Qh3 Be8 Qf1 d8Q+ Kf8 Qb6 Ke7 Bf7 Rd7 Qc5+ R4d6 R5b7 Nd5 Qcb6 Qd1 Qbd4 Qf1
K1RN3Q/2p1pqB1/2nr1r2/1rN2B1b/5nNQ/2p1bQN1/2bNP3/kr1q4 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 c4 dxc4 f4 h6 g4 gxf4 g5 h5 Ra3 Kd7 Rg3 Ke8 Rg4 hxg4 Kf2 Kd7 h4 Ke6 d4 Kd5 g6 a5 h5 f5 g7 g3+ Kf3 g2 h6 c3 h7 Kc4 d5 a4 b6 a3 d6 a2 b5 a1Q d7 Qa4 b7 Qa2 b6 Qb3 Nh3 g1R Nf2 Nf6 g8N Ra5 Bh3 Rb5 Ne4 Nc6 b8N Nd5 b7 Bh6 Qe1 Qa2 Bd2 Kb3 Ngf6 Kb2 Ng3 Ka1 Na6 Rg8 b8Q Rg6 Ng4 Rd6 h8Q Qc4 Kf2 f3 Nc5 Nf4 Ke3 f2 Qb7 f1R Bc1 Qb3 Nd2 Qdg8 d8N Qgf7 Qf2 Qd1 Qf3 Be6 Qc8 Bg5 Qh4 Bb3 Qb8 Nd5+ Kd3 Be3 Qc8 f4 Ke4 Ndb4 Rh2 Nd3 Qb8 Bc2 Rg2 Re6+ Kd5 Rh1 Nf6 Rf2 Bf5 Rhf1 Ng4 Rh1 Qe4 f3 Qc8 Rff1 Qf4 f2 Qf3 Nf4+ Kc4 Qh5 Nf7 Re1 Rg1 Rh3 Rh1 Rd6 Nb1 Bd2 Qf6 Ng2 Na3 Rb8 Nb1 Rg1 Qd8 Qf1 Qe8 Bh6 Bg5 Rb6 Nd2 Qb1 Bh4 Be3 Qh6 Rb2 Bf6 Nf4 Bg7 Qg6 Qg5 Rh6 Rh5 Qf6 Qh4 Rg6 Rh8 Qe6+ Qd5 Rf6 Qg8 Rb8 Qgh7 Rb3 Rc8 Qf1 Nd8 Qf7 Qh8 Rb8 Ncb7 Qe1 Kb5 f1B Ka6 Bh3 Nh2 Bg2 Nc5 Bf3 Qe4 Bh5 Ng4 Rb5 Qf3 Ne5+ Ka7 Nc6+ Ka8 Rh1 Nde4 Qd2 Qh6 Rhb1 Qh8 Qe1 Nd2 Qd1
R2K3b/1p3R1r/2k5/rp5Q/1rrRbn2/Bp1RB3/BP1q1nNR/1n1n3Q w - - 0 1 illegal: No proof kernel
R3nB2/N1nr1N2/1N1pp3/b1p3Nb/1BPQ1QN1/1r3p1B/1n2k1K1/b1qr4 w - - 0 1 illegal: No possible last move, all moves rejected
5r2/Qb1p2pB/3p1rK1/2RbQ1NB/1Brn2nB/q1b5/Bk2pnPQ/5R2 w - - 0 1 illegal: No proof kernel
n3R3/qN1p4/N4K2/1p4np/Rbr2k1p/rP1q2NQ/2QNq2B/R1n2bN1 w - - 0 1 illegal: No extended proof kernel
QQR2r2/K2BQ1pN/bQ1p1r2/1nR1N2R/1p1b4/2b3p1/rPn5/Q1rk3q w - - 0 1 illegal: No proof kernel
r1bR3K/2R1p3/1pNQN2p/RQR2R2/1rBN1p1n/4P1b1/3qnkb1/1b4n1 w - - 0 1 illegal: No proof kernel
1NBb2QB/NRp2K2/1p1k1r2/N1bN2qr/1pP3p1/1pn2Nn1/3QQ1bq/8 w - - 0 1 illegal: No proof kernel
3q1n1k/N6N/2rNr1rB/2B3Nn/N2Rb1n1/b6Q/K1P1N2q/r2bNq2 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 f4 h6 b4 Nc6 g4 Nb8 f5 Bb7 Be2 Ba6 Ra3 Bc8 Rf3 h5 Rf4 gxf4 g5 Qc7 Bf3 Qd8 Bg4 hxg4 Kd2 Kf7 h4 d5 h5 e5 h6 a5 g6+ Ke8 g7 Kf7 h7 f3 b6 e4 b7 g3 b5 g2 b6 f2 Qg4 f1Q Nc3 d3 Nge2 g1R Rh4 d4 Na4 Ra6 Qh3 Nd7 b8N Rg6 b7 Re6 Na6 Ba3 b8N Bb7 Nc6 Nf8 N6c5 Qf4+ Kd1 d2 Nd3 e3 Na7 Be4 Ne1 Qh2 Rf4 Nh6 g8N Ng4 Ne7 Rhg8 h8B R8g7 Nec8 Kg8 Nd6 Rc7 Bg7 Rc6 Bh6 Kh8 f7 Nf6 Rh4 Nh5 f6 Bd3 Nb6 a4 Rf4 Be4 Rg4 Bb4 Ba3 Bc5 Bb4 a3 Na4 a2 Ba3 Nd7 f8N a1R+ Bc1 Bb4 f7 Ba3 Nh7 Nf8 Ng5 Rgf6 Nf4 Rg6 Ned3 Bg2 Nf3 Nd7 f8N Bh1 Nh7 Nf8 Nfg5 Bg2 Ke2 d1N Ke1 e2 Kd2 Ne3 Bb2 Ra2 Kc1 Bh1 Kb1 e1Q+ Bc1 Qf1 Ne1 d3 Rh4 d2 Ne2 d1B Re4 Bb4 Rd4 Ng4 Ba3 Ra1+ Kb2 Be4 Kb3 Ba5 Bc5 Bb4 Kb2 Ba3+ Kb3 Rb1+ Ka2 Ra1+
3rq2b/N4n1P/3N3N/1Nn2Rbq/Q2q1b2/K2r1q2/2BNk1pN/1Rb2N2 w - - 0 1 illegal: No possible last move
1N5n/Kn1N3N/2rN1bb1/n1NQ1q2/1k3pn1/pNR3Br/1P2q1B1/N6q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nb1 g2 Ra3 Rh5 Rc3 Rh8 Rg3 fxg3 d4 Kd7 Kd2 Kd6 Ke3 a5 h4 c5 h5 g5 h6 f5 b6 g4 h7 c4 b7 c3 Rh3 a4 Nd2 a3 Ngf3 g1N Ng5 g2 Nb3 g3 Na1 Na6 b8N Kc7 d6+ Kb6 d7 Kb5 d5 c2 Kd4 Qe8 d8N Bd6 e4+ Kb4 e5 Nh6 e6 Ng4 e7 Nc5 Nde6 Ra6 Bf4 Nb7 Nc5 c1N Ncb3 Rc6 Qf3 Qd7 e8N Be7 d6 Bf6+ Be5 Qe7 d7 Nge2+ Kd5 g1Q d8N g2 Nd6 Qh1 Nde6 g1Q Bg2 Qe8 Bg3 Qf2 Nec5 Bd7 Qd3 Qc8 Qd1 Be8 Qd3 Bg6 Qd1 Re8 h8N Re3 Nhf7 Qf8 Ne5 Nf4+ Kd4 Qe2 Nh7 Be8 Na4 Ng6 Nac5 f4 Kd5 Nh8 Ned7 Rc3 Qd3 Bg6 Qf3 Bh4 Kd4 Bg5 Qd5 Bf6+ Qe5 Rc4+ Kd5 Bh5 Bh2 Bh4 Nd4 Rb6 Rg3 Rc3 Re3 Bg6 Qh5 Rb5 Kc6 Rb6+ Kc7 Ra6 Qd5 Nb3 Rh3 N3a5 Ndb3 Qf5 Re3 Ra7 Kb6 Rd3 Rg3 Bf6 Re3 Nd8 Rh3 Rc7 Ka6 Rc6+ Ka7 Ndb7 Rf3 Rd1 Rc3 Rd4 Bg3 Re4 Be1 Re3 Bh4 Rh3 Bf2 Bg7 Bg3 Bf6
4R1Nk/pQ3pRP/2r1R1R1/nBpp4/2R1p1nR/n2b1KN1/3q2R1/1qr5 w - - 0 1 illegal: No possible last move, all moves rejected
3Bn3/1K1N4/bB3np1/p1BBbB2/3r1r1n/Pn1q2q1/2RQ2B1/kbBr2R1 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Nc3 f6 Nce2 fxg5 Ng3 hxg3 Qf3 g4 Qe2 Kd7 Qd1 Ke8 Ke2 Kf7 Ke3 Ke6 h4 Ke5 c4 a5 h5 b5 f3 b4 h6 g2 d3 g6 a3 g3 c6 b3 c7 b2 c5 b1B c6 Na6 h7 Nf6 Rh2 Bg7 Qd2 Rf8 h8B Kd5 d4 e5 f4 Rf7 Nf3 g1Q+ Qf2 g2 f5 Bb7 c8B Nc7 Bd7 Nce8 c7 Ba6 c8B Rb8 Ba4 Rb4 Bb3+ Rc4 Rh1 Qh2 Ra2 g1R Rc2 Qg3 Bg2 Rd1 Qd2 Qd6 Rg1 Rf8 Ke2 e3 Kd3 e2 Bd7 e1N+ Ke3 Ng8 f6 e4 f7 Ngf6 Bf5 Nd3 Ba2 Nc5 Bb3 Kc6 d5+ Kb5 Ba2 Qd7 d6 Rd4 Bd5 Qd8 d7 Ka4 Bg4 Nb3 Bf5 Qh3 Kf4 e3+ Ke5 e2 Ke6 e1N Ne5 Qc7 d8B Qd3 Nd7 Qcg3 Ke7 Nf3 Ke6 Rg8 f8B Nh4 Bc5 Rf8 Ke7 Ne4 Bdb6 Be5 Kd8 Rf7 Bf6 Rf8 Bg4 Rf7 Bfe7 Rf4 Bge6 N4f6 Bf5 Bb5 Kc8 Ba6+ Bb7 Na1 Bed8 Kb3 Bb2 Ka2 Bd5+ Nb3 Bc1+ Ka1 Bg2 Bb5 Bbd5 Bc4 Kb7 Ba6+
1N2b3/2n4R/r1pR1R2/2P1bp1q/2R1Rb2/K1pq1B2/1R2Nq1q/R1Qr1k1n w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 g5 h4 gxh4 f4 e5 b3 exf4 Bb2 d4 Bc3 dxc3 e4 Ke7 g4 Kf6 d4 Kg5 b6 h5 b7 a5 d5 f5 e5 h3 c5 Kh4 d6 Kg3 e6 h2 d7 h4 b4 h3 e7 f3 e8R Ra6 b5 Bh6 b6 Bf4 g5 Nh6 g6 Ng4 g7 Nf2 Be2 Kg2 Nd2 Rh6 Re7 Rd6 Re4 Qh4 d8R Bd7 Qc1 Be8 Bd1 Qh5 Ne2 Rd7 Rf1 h1Q Nb3 h2 Nbd4 Qg1 Nc6 h1Q Raa4 Rd2 Rd6 Qh1h2 Rac4 Nh1 Rf6 Qe3 Rd6 Qd3 g8R+ Qg6 Rh8 Qgh5 Rdd4 Ra7 Rh7 Na6 b8R Rb7 Rd5 a4 Qc2 Be5 Ned4 a3 Be2 Bd7 Rf8 a2 Rf6 a1B Rdd6 Bb2 Qb1 Rb8 b7 Be8 Qc2 Bc1 Qd1 Ra8 b8R Ra7 Rb6 Rb7 Nb8 c6 Rb2 Rb6 Qc2 Nc7 Qb1 Rc2 Qa1 Bd2+ Kd1 f2 Re1 f1Q Bf3+ Kg1 Ne2+ Kf2 Rb1 Ra2 Rb2 Qfg2 Qb1 Ra1 Rg1 Qd4 Kc2 Bdf4 Qd1 Rb1 Qd2 Re1 Qd1 Rf1 Kb1 Qd3+ Ka2 Re1 Qa1 Rc1 Rd1 Qgg1 Qb1 Qe1 Ka3 Kf1 Rdd2 Qef2 Ra2 Nd5 Rdb2 Nc7 Ra1 Rd1 Qc1 Ra6+
r1rb4/r3bNK1/1b3B1Q/3b3B/2N5/B1R1Q2q/1npBQNP1/kn3n2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 d5 cxd5 f5 exf5 b5 a4 bxa4 b5 a3 Rxa3 a4 Rf3 a3 Rg3 Nh6 Rg8 Nxg8 Ke2 Kf7 Kf3 Kf6 Ke4 h5 d4 e5 f4 c5 b6 c4 b7 h3 d6 h2 d5 a2 d7 a1B d6 h4 Bd3 c3 Qd2 c2 Nc3 h3 Be2 Nc6 b8B Be7 Bd1 Na5 Nb5 Bd4 Ba3 Nc4 Ba7 Bb6 Bh5 Nb2 Qe2 Qe8 d8B Qd7 Kd5 e4 Bb8 e3 Ke4 Qc7 d7 Qc3 Nd6 Ba6 Kd5 Bc4+ Ke4 Be6 Nc4 Ra7 Bbd6 Bf7 Bdb4 Be6 Qd2 e2 Qe3 e1B Ba5 Qb3 Bd2 Bh4 Qe2 Kg7 Ke5 Nf6 Qe3 Nd5 Qe2 Nc3 f6+ Kh7 f7 Kg7 f5 Bd5 Qe3 Nb1 Qe2 Rh6 Qe3 Rc6 Qe2 Rc8 f8Q+ Kh7 Qe8 Kg7 Bc7 Qf3 d8N Qd3 Nf7 Qb3 Kf4 Kf6 Kg4 Bd8 Q8e3 Be7 Bd8 Rca8 Nf3 Qc3 Rd1 h1R Ng1 h2 Nh3 Rf1 Re1 h1N Nf2 Ng3 Rd1 Rh1 Re1 Rh3 Rh1 Nf1 Kf4 Rg3 Rh3 Rg8 Rg3 Qb3 Rf3 Kg7 Ke5 Rh8 Bc7 Rhc8 f6+ Kf8 Rg3 Ke8 Bd8 Kd7 Kf5 Kc6 Kg6 Kb5 Kg7 Ka4 Qd4 Qb5 Rc3 Qd7 Qde3 Qf5 Nfe5 Qf3 f7 Qh3 f8Q Bhg5 Nf7 Bh4 Bc7 Bhg5 Be5 Bed8 Rd3 Bge7 Bec3 Kb3 Bf6+ Ka2 Rc3 Ka1 Qh8 Rcb8 Qhh6 Rc8
1Q1bQ3/2K5/3Q3R/3p1Q2/2NNqBqP/qbR5/2r1NRnb/2qkbn2 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 e4 b5 a4 f5 exf5 c5 d4 cxd4 a6 Nh6 a7 Ng8 a5 Nc6 a6 Rb8 Be2 Rb7 axb7 Nb8 Bc4 Nh6 Bg8 Nxg8 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 a8N b4 f4 e4 c4 g3 h4 e3 c5 d3 c6 e2 c7 b3 Ra3 g2 Qe1 g4 Nb6 b2 Qd2 g3 Qa5 d2 Nf3 d1Q+ Nd4 g1Q Rf3 g2 Nc4 Ne7+ Kd6 Nbc6 b8Q Ne5 Nb6 Ng4 Na8 Ne3 Qab4 Qa4 Nc6 Qa3 Rhh3 e1B Nb6 Nf1 Be3 Qe8 Nc3 b1Q Nd4 Qbc1 Nce2 Ba6 c8R Bc4 Rc5 Bb3 Rc6 Bh6 Bd2 Nd5 Rf2 Nde3 Qc5 Qe4 Rhf3 Kf7 f6 Kg6 f7 Bg5 f5+ Kf6 Qb4 Rh6 Kc7+ Ke5 f8Q d5 f6 Rh7+ Kd8+ Rc7 Rd6 Rc4 Qc5 Rc3 Kc7 Rc2 f7 Bf6 Qg8 Be7 f8Q Bd8+ Kb7 Qf4 Rh3 Ke4 Rh6 Kd3 Nc4 Qh1 Qgf7 g1B Q8e8 Bh2 Qf5+ Qhe4 Qcd6 Qf3 Rg3 Ng2 Be3 Qg4 Bf4+ Nge3 Na5 Kd2 Nc4+ Kd1 Kc8 Bf6 Kc7 Ng2 Rc3 Bd8+
1qB1k2b/p7/nQn2r2/4P2R/R2b4/n1N1Qpr1/3B1Qb1/K2r1BRB w - - 0 1 legal: proof: a4 b5 axb5 c5 e4 d5 c4 g5 b4 e6 h4 gxh4 Na3 Ba6 Nc2 Bc8 bxc5 e5 f4 exf4 Ne3 fxe3 cxd5 Qb6 Be2 Qd6 Bf1 Qd8 d4 f5 g4 h5 c6 f4 d6 e2 Kd2 e1B+ Kc2 h3 Kb1 h4 d5 h2 e5 h3 b6 Be7 c7 Kd7 g5 Bf2 g6 Beh4 g7 Bc5 b7 Bd4 Qc2 Rh6 Bd2 Na6 b8R Rf6 Rb4 Ne7 g8B Nc6 Rba4 Bb7 c8B+ Ke8 Ne2 Bg5 Rg1 h1N Nc3 h2 Qb3 Nf2 d7+ Kf8 d6 h1R Kb2 Ne4 Bd5 Qc7 Rd1 Qb8 Ka1 Bh6 Rg5 Bg7 Rh5 Bh8 Re1 Rg1 Qc2 Rg3 d8Q+ Kg7 Qc7+ Kf8 Qb6 Ke8 d7+ Ke7 Be3 Nd2 Bh1 Nb1 d8Q+ Kf7 Qd6 Ke8 Qf2 f3 Bf5 Bc8 Qa3 Be6 Bd2 Bc8 Be4 Bh3 Bf5 Bg2 Qac5 Qd6 Rc1 Rd8 Bc8 Qb8 Bd3 Rdd6 Rg1 Rd5 Bf1 Be3 Bc1 Rd1 Bd2 Bd4 Qcb5 Re6 Qd3 Rf6 Qde3 Na3+
R2Nk1q1/3p1q1P/1Qb3Q1/3b4/Qn2r1pN/1KbB4/1Rr4N/N3qq1R w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 e4 b5 a4 f5 a6 c5 a5 b4 Bb2 Nc6 Bd4 cxd4 exf5 Ne5 Nf3 Nc4 Ng1 Nb6 axb6 Rh3 d3 Rxd3 Ne2 Rh3 Ng1 Rh8 Kd2 e5 f4 g5 c4 b3 h4 e4 f6 g3 b7 d3 Kc3 g2 b8Q g4 c5 e3 h5 e2 h6 e1Q+ Nd2 b2 a7 b1B h7 Ba6 c6 Bc8 f7+ Ke7 f5 Qa5+ Kb3 Nf6 c7 Nd5 Ngf3 g1Q Nh2 Bg7 f8N Nb4 f6+ Ke8 Ne6 Qgf2 Nd8 Bb7 c8Q Qg5 Ra2 Bc6 Rb2 Qg6 Qa6 Ba2+ Kc3 Qf4 Qbb6 Bad5 Qda4 Rc8 a8R Qfg5 Be2 Qf7 Bf1 Rc7 Be2 Qf1 Nb3 d2 Na1 d1Q Qd3 Rf8 Qg6 Bh8 Bd3 Qb1 Qf5 Qgg8 Qg6 Qbe1+ Rd2 Bb7+ Kb2 Rc4 Kb3 Bg7 Rb2 Bbc6 Qh6 Qg6 Qh5 Rf7 Qg5 Re7 Qf5 Re2 f7+ Kf8 Qg5 Rec2 Qh5 Ke7 f8N Q6f7 Ng6+ Ke8 Nh4 Bc3 Qg6 Re4+
4QKRR/B2br1P1/Q1n1n2N/R2pn3/Q6Q/N4b2/kpN5/br3rn1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 h4 g5 hxg5 Bg7 a4 Qa5 Ba6 Qb5 axb5 bxa6 b6 Bf8 Ke2 Kf7 Kd3 e5 Ke4 h5 Kd5 b3 c4 h4 g4 e4 f4 h3 f6 e3 c5 e2 b7 e1N c6 h2 c7 d3 f5 a5 Ba3 a4 Nf3 d2 Nd4 Bg7 Kd6 Nh6 Bc5 a3 Nc2 a2 Ba7 Rh7 Nba3 Nc6 b8Q Nf3 Qb4 Ng1 Qe1 d1B Qa4 Rb8 Qh4 Bf3 g6+ Kf8 g5 Ng4 f7 Nge5 Qaf4 Bh8 Qa4 Kg7 f8R Rb4 Rd1 a1N Rd5 Rb8 Ra5 Rb5 Ne3 Nc2 Rd8 N2d4 Nec2 Ne6 Re8 Ncd4 Ke7 d5 Rf8 Bd7 c8Q Rb6 Qa6 Ndc6+ Kd6 Be4 Ra8 Rb8 f6+ Kf8 g7+ Kf7 g8N Bf3 g6+ Ke8 Nb4 Re7 f7+ Kf8 Qhc4 Kg7 Nh6 Kf6 Nbc2 Rb6 Ng8+ Kf5 f8Q+ Bf6 Nd4+ Ke4 g7 Rb5 Qcb4 Kd3 Qc4+ Kd2 Ndc2 Kc1 Qh4 Kb2 Nh6 Ka2 Qh8 Ng6 Rg8 Ba1 Qh7 Nge5 Qg6 Rb4 Qe8 Ne2 Rg1 h1R Rg2 b2 Rh2 Rb1 Rh3 Re4 Rh2 Ng1 Rh1 Ncd4 Rh3 Rf7 Rh2 Rff4 Ke7 Re3 Rh1 Ndc6+ Kd6 Be2 Qg4 Ned8 Nf5 Nd3 Rhh8 Rff1 Nh6 Bf3 Qge4 Nb8 Ke7 Nbc6+ Kf8 Re2 Qf4 Re7 Qg5 Nde5 Qgh4 Ne6#
6q1/5pr1/qprQ1q1N/k1B2P1r/3R1N1K/2b1p1NN/3R1nQ1/rR2Q3 w - - 0 1 legal: proof: b4 d5 e4 dxe4 g4 h5 a4 g5 b5 h4 b6 c6 Bb5 cxb5 a5 Nd7 a6 Ndf6 axb7 axb6 h3 Nh5 gxh5 g4 Ra5 g3 Ra1 Bg4 hxg4 Qd7 Ke2 Qc8 Ke1 Qd8 b8Q Kd7 d4 Kc6 c4 e5 f4 e3 g5 h3 h6 g2 f5 b4 c5 Kb5 g6 b3 g7 e4 d5 b2 d6 h2 d7 e2 Kf2 e1R Kg3 e3 c6 Qe8 d8R Ra7 h7 Ra8 c7 Ra3 c8Q Ka5 Nh3 g1R+ Kh4 Bb4 Qbd6 Rg5 Qcc2 Reg1 Nd2 b1Q Ra2 Bc3 Nf1 Nf6 g8N Qa1 Nh6 Ng4 Ng3 Nf2 Qe1 Qg8 Qce2 Rg2 Rd2 Ra2 Rf1 h1Q Ba3 Rg1 Rd4 Qb7 Bc5 Qa6 Qf3 Qb2 Qg2 Ra1 Rd7 Qg7 Rd2 Rc8 h8N Rc6 Ng6 Qg8 Ngf4 Qb3 Qg6 Qe6 R7d4 Qe5 Qe6 Qf6 Qd6 Qe2 Qd1 Rb1 Qf3 Ra1 Ngh5 Qa6 Qde2 R1g2 Rb1 R2g3 Qg2 Rg6+ Ng5 Rg7 Qe1 Qg6 Ngh3 Rg5 Ng3 Qe6 Qb8 Qf6 Qd6 Rh5+
1q1rR2N/1R1Q1K2/2R1Qr2/1p2BQ1P/Nb1b1np1/4p1Nb/1p4kr/7R w - - 0 1 legal: proof: g4 a5 a4 d5 c4 b5 cxd5 h5 b4 hxg4 e4 f5 exf5 Nd7 Bd3 c5 Bc2 c4 Bb3 axb4 a5 Nb6 axb6 cxb3 Ke2 Kd7 Kd3 Kd6 Ke4 g5 h4 e5 f4 b2 d4 b3 f6 g3 f5 g4 b7 g2 b8R Ra6 f7 Rc6 h5 Qd7 f6 Rc4 Qe1 Rb4 Bf4 Qa7 Ra6+ Qb6 Ne2 g1B Rb7 Bd7 Ng3 Be3 Nc3 b1R Na4 Be7 f8N b2 f7 Bc6 Kf5 Nf6 Ng6 Rd8 f8Q Rb3 Qe2 Rf1 Nh8 Rf2 Kg6 Rh2 Kf7 Qa7 Ng6 Qb8 Nh8 Bg1 Qe4 Rf3 Qg8 Bf2 Qf5 Bf8 Bh6 e4 Bg7 Nd7 Rab6 Nc5 Bf6 Ne6 Qgg6 Be7 Qh6 Qc7 Be5+ Kd7 d6 Rb8 d5 Bd4 Rc1 e3 Qff6 Rf5 Ra6 Nf4 Rh1 Re8 Rbb6 Qb8 Rb7+ Kd8 d7 Rg8 Rba7 Bb7 Rd6 Kc7 d8R Bf8 Re6+ Bd6 Rc8+ Kd7 Rc2 Bb4 d6 Re8 Rc8 Rg8 Rd8+ Kc6 d7+ Kd5 Qh7 Bc6 Rb7 Re8 Ne2 Ke4 Ng3+ Kf3 Rc8 Bd2 d8Q Bb4 Qd7 Rd8 Re8 Kf2 Rcc7 Bg2 Rc6 Bh3 Qg6 Kg2 Qh6 Rg5 Qff5 Rg8 Qhf6 Rg6 Q6e6 Rf6+
3K2k1/3B2p1/pprqpR2/QrBn1R2/1BR1pN1Q/1R1q4/P2n4/Q3n3 w - - 0 1 legal: proof: e4 f5 c4 fxe4 c5 d6 b4 c6 b5 dxc5 bxc6 c4 c7 Qd7 Ba3 Qd5 Bc1 Qd8 g4 h5 f4 e6 g5 Ke7 f5 Kf7 Nc3 Na6 Nd5 Ke8 Ne3 Be7 Ng4 Bf6 gxf6 Bd7 c8Q hxg4 Qb8 Ba4 Qe2 Bd1 Qxd1 Nc7 Kf2 Kf7 Kg3 c3 Kf4 g3 Ke5 c2 d4 a6 h4 g2 h5 b6 d5 Rh7 h6 Qf8 d6 Ne8 d7 Qb4 d8Q Qa4 Bb5 Qc4 Rb1 Nc7 Kd6 Ra7 Kd7 Qa4 Nh3 g1Q Ba3 c1N Rb3 Qg6 Nf4 Qa5 Rh5 Qg1 Bc5 Nd3 Qa1 Rh8 h7 Qh2 Qa8 Qa4 Qd5 Qa3 Kc8 Qb4 Bd7 Qd4 Bb4 Qe3 Qa5 Nh6 Rg5 Rf8 h8R Ng4 Rh3 Qed2 Rf3 Ne1 Rfc3 Qe3 Rc4 Ne5 Rg6 Kg8 f7+ Kh7 f6 Nd5 Rg5 N5f3 Rf5 Nd2 Bc5 Rh8 f8R Qd3 f7 Qhg3 Qe7 Rc7+ Kd8 Rc6 Bb4 Qg4 Qh4+ Qh5 Re8 Qh6 f8B Kg8 Bbc5 Qh5 Re7 Qd1 Ref7 Rh5 R5f6 Nc3 Bb4 Rb5 Bfc5 Qd6 Rf5 Nd5 R7f6 Qc2 Rb1 Qc3 Rb3 Qd3
qRbb2K1/1Q3r2/1bQQ1qN1/2N3BB/2kr3r/3n2rN/3Pn1q1/3Bn2N w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 Nc6 Ke2 Kd7 Ke3 Be7 Kf4 Nd4 Ke5 f5 h4 a5 d6 g5 Qa4 c5 h5 g4 h6 f4 h7 c4 Bb2 c3 Be2 c2 Nh3 c1N Nc3 g1B Nd1 g2 Ndf2 g3 Bf3 Nf6 b6+ Nb5 Qc2 a4 b7 a3 b8Q a2 Bd4 Qa5 Be3 Na3+ b5 Nd5 b6 a1Q+ Kf5 Qd4 Kg6 Ke6 b7 Nb4 d7 Nbd3 d8Q Qd6 Qc5 Nc2 Kg7 Qa4 Qdc7 Bd8 e5 Qe4 Q5b6 Kd5 e6 Ra4 e7 Qe6 Bg4 f3 e8B Rc4 Ba4 Ne2 Bg5 Qc6 Q8a7 Qf4 b8N Qa8 Nd7 Rb4 Ne4 f2 Qg6 f1R Nef2 Rc4 Qgb6 Re4 Qcd6+ Kc4 Qab8 Rf8 Q8a7 Rf7+ Kg8 Qf3 h8N Rc1 Ng6 Qf6 Bh5 Rf1 Qab8 Rh4 Ng4 Rf4 Qbc6+ Bc5 Rc1 g1R Ngf2 g2 Rb1 Nce1 Bd1 Rfg4 Nh1 Rd4 Qe4 Ba7 Rb7 Bab6 Nc5 Rf1 Qf3 g1Q Qfc6 Rf3 Qbc7 Re3 Rb8 Rg3 Q7b7 Qg2
1n1Qr3/Kq3qNk/Q4qrn/2P5/2B4b/Rr2N1r1/b1R2r1r/R1N2N1Q w - - 0 1 illegal: No possible last move, all moves rejected
N2k2bQ/r3qB2/Rn3QbB/Rrb5/4b2B/2Bq2rQ/bnPr4/1K2R3 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 Qb6 Nd2 Qd8 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Nh6 Ng4 hxg4 Bd2 Ng8 Be3 Bg7 Bc1 Bf8 Kd2 d5 b4 e5 h4 a5 g6 e4 h5 f3 h6 d3 b6 g3 f6 g2 h7 e3+ Kc3 a4 Kb2 d2 b5 e2 b7 e1Q b6 d4 g7 f2 Kb1 d3 Be2 f1B Nf3 g1R Ra2 a3 Ne5 Be6 Nf3 Na6 b8B Nc5 b7 Ne7 g8R Nc8 Bh2 Rg3 b8B Nb6 Rg7 Ra5 Rf7 Nca4 Ng5 Bc5 Ra7 Nb2 Ra6 Rb5 Be5 Bg8 Ne6 Qe7 Bg4 Qe2 Nc7+ Kd8 f7 Qe3 Qe1 d1B Be6 d2 Bc3 Qd3 Qe3 Bf3 Na8 d1B Bb3 B1g2 Re1 Bd5 Qh6 Bh1 Qh3 Bh5 Bh6 Bhe4 f8Q+ Be8 Qf6 B8g6 Ra1 Bde6 Bg1 Bef7 Bf2 a2+ Kc1 Rf3 Bh4 Rg3 Rb1 a1R Bd5 Ra3 Ra1 Ra4 Kb1 Rd4 Be6 Rd7 R1a5 Ra7 Bg4 Rg2 Bd7 Rd2 Be8 Ba2+ Ka1 Bge6 Bf7 Rg8 h8Q Bh5 Be8 Rg3 Bg6+ Bg8 Bf7 Bc4 Kb1 Bhg6 B4g5 Bb3 Bh4 Ba2+
2QB3B/NK2brQ1/1n1N2r1/3B2q1/1q2qQQ1/1qR2Pq1/b3b3/nb1kN3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 Ke5 g4 Kf4 d4+ e3 b7 e5 g5 h5 b6 b3 Kb5 e4 g6 h3 d6 b2 g7 c4 d5 h4 d7 h2 d6 c3 Nd2 b1B Bd3 h3 Bf1 e2 Kc5 e1Q Kb5 c2 Ngf3 e3 Nc4 Ne7 g8N Nbc6 b8B Nd4+ Kc5 Nb3+ Kb5 Na1 b7 Ra7 Bc7 Rh6 Kb6 Rg6 b8Q Ba6 Bb2 c1Q Bg2 e2 Bh8 Qc2 Qb7 Qed2 Ne1 Nd5+ Kc6 Qf6 d8Q Qb3 Qdb8 Qg5 Ne7 Nb6 Bd8 Qdb4 Nc8 Be7 Bd5 Kg4 Rf1 h1Q Rg1+ Kf4 Rg3 h2 Rc3 Qe4 Q7c7 Rb7 Na7 h1B Qd7 Bg2 f3 Bh3 Qd4 Be6 Qg7 Kg3 Qdc8 Kf2 d7 Bf7+ Nd6 Bad3 Nc2 e1Q Qbc7 Qeg1 Ne1 Ke2 Q7b8 Kd1 Qbc7 Nc4 Q7b8 Be2 Qbc7 Rb5 Q7b8 Nb6 Kb7 Q1g3 Qc4 Qd3 Qg4 Rc5 Qc8 Rc4 Qc7 Rf4 Qc4 Rff6 Qcf4 Qdc4 Bc7 Qd4 d8Q Qe4 Qdc8 Be6 Bd8 Rf7 Bc6 B6c4 Bd5 Qbc2 Qgd7 Bca2 Qdg4 Qcb3
1b2B3/3bB1qn/Q1q1r2r/b1Q2r2/1Nq2PQ1/1kn1qBR1/4NQr1/6NK w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 f4 Kd7 Kf2 Kd6 d4 c5 g4 e5 Kg2 h5 g5 b3 g6 c4 b7 c3 b6 c2 g7 b2 Qf3 h3+ Kh2 h4 Bb5 e3 Qe2 e4 Qf3 e2 Qg3 e1B Nf3 e3 Qf2 e2 Nbd2 b1R Be8 Rb2 Ng1 Qg5 Nf1 Nf6 g8B Na6 b8N Nc7 b7 Rh6 Bh7 Ra5 Na6 Nb5 Be4 Nc3 Bf3 Qg7 Ng3 Bd7 Nb4 Nh7 Be3 c1Q b8Q+ Ke7 d6+ Ke6 Qa8 Rf5 Qa7 Bd2 Qa1 e1Q N3e2 Qc2 Qd1 Qb3 Qa1 Qc4 Qa5 Qc1 Qc5 Be1 Bd2 Be7 Be3 Bd8 Bd2 Bc7 Be3 Bb8 Bd2 Bb5 d7 Ba4 d8Q Bd7 Qg5 Ra2 Qa7 Kd6 d5 Re6 Be3 Rc2 Bd4 Qe3 Bf6 Bd2 Qa4 Kc5 d6 Be1 Qa3 Kb5 Qc1 Ka4 Be7 Kb3 Qg4 Nd5 Na2 Ba5 Nb4 Nc3 Qcf1 Ba4 d7 Bc6 d8Q Bd7 Bc6 Rd2 Qc7 Ra2 Nf3 Rc2 Kg1 h2+ Kg2 Ra2 Rg1 h1R Bb7 Rh3 Qc5 Rh1 Qd1+ Rc2 Qdd6 Rb2 Qa6 h3+ Kf1 Rh2 Rg3 Rg2 Be4 h2 Ng1 h1Q Bf3 Qhh6 Nh3 Rh2 Kg1 Rg2+ Kh1 Rd2 Bg6 Rdd6 Bh5 Qhg6 Nhg1 Qe8 Bf7 Qc8 Bg6 Qc6 Be8 Rh6+ Qh5 Rde6 Qh4 Rhg6 Qg4 Rh6+
1KNQ3q/4n3/1r2q1BP/3Q2BN/5n2/Bb1Nkqq1/1q1r1Rq1/1qQ1B2q w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 b4 h5 Bg5 f5 Be3 f2+ Kd2 f4 Ra6 f3 Rg6 Bd6 Rg4 Bf4 gxf4 hxg4 Kd3 Qc7 Bc1 Qb6 Kd2 Qd8 Kd3 Ke7 Kc4 Kf6 Kc5 Kf5 Kd6 Ke4 c4 a5 h4 g5 c5 a4 b6 a3 b7 d3 f5 a2 b5 a1Q f6 g3 f7 g2 f8B d2 c6 g4 b6 g3 c7 Ke3 h5 Nf6 h6 Qb2 Nc3 Nd5 Rh2 Ra2 Nh3 g1Q Na4 g2 Nc5 Nf4 Nd3 Nc6 b8B Qh1 b7 g1Q Be7 Re8 Bg5 Ne7 Qb3 Qg4 Qd5 Qg3 Bg2 f1Q Ba7+ Qd4 b8Q f2 Be4 Qfg2 Qb1 f1Q Ba3 d1Q Bg6 Qfe1 Qc1+ Rd2 Bb8 Bb7 c8N Qb2 Bc7 Bc6 Ba5 Ba4 B5b4 Rg8 Bc3 Qe8 Kc7 Bb3 Kb8 Rf8 Ba5 Rf6 Bc3 Qh8 Ba5 Q2f3 Rf2 Qfg2 Bd6 Nf5 Qcc4 Rc2 Nb4 Qdb1 Qa8 Kd2 e4+ Qe2 Bf8 d5 e5 d4 e6 d3 e7 Rd6 e8Q Rc6 Bc5 Ne7 Qb7 Ra6 Qd8 Rb6 Bf6 Ne6+ Nf4 Q1a2 Bd6 Qab1 Nh5 Nf4 Bg5 Qhh2 Rf3 Qhh1 Qd5 Qe6 Rf2+ Ke3 Qc6 d2 Nd3 d1Q Ba3 Qh7 Be1 Rd2 Qcc7 Qhh8 Qc1 Rd6 Qa8 Qdf3 Qd5 Rb6+
NbB2rq1/1Kb2Q1N/Qbq1Q2n/NnR2P2/1k5B/4q2B/Qr4pn/2r5 w - - 0 1 legal: proof: f4 c5 e4 f5 d4 cxd4 g4 fxe4 a4 h5 b4 b5 axb5 Nc6 f5 Bb7 f6 Nb8 Ra3 Bd5 Rg3 Be6 Rg2 Bf5 gxf5 Nc6 Rg3 Nb8 Rg4 hxg4 Kf2 e5 c4 g5 h4 a5 b6 d5 f7+ Ke7 c5 e3+ Ke2 e4 b7 d3+ Ke1 g3 h5 e2 Kd2 e1N Ke3 a4 Kd4 d2 c6 Kd6 h6 g2 b5 g4 h7 g3 b6 a3 c7 e3 c8B a2 Bb2 a1B Bc3 e2 Qa4 d1Q+ Nd2 Qc1 Nh3 Na6 b8Q+ Nc7 b7 Nh6 Qba7 Rb8 Nb3 Qe8 Bb2 Qcc6 Na5 Rg8 h8Q g1B+ Nf2 Be7 Qa6 Rf8 Bh3 g2 Qg8 Bd8 Qa2 Bh2 Ng4 Nf3+ Kd3 Kc5 Nf6 e1R Nh7 Nb5 Bf6 d4 Bh4 Bhc7 Rf1 Rb1 Rc1+ Kb4 Rc5 Nh2 Qg6 Rc1 Qge6 Qcd7 Ke4 d3 Qe5 d2 Qee6 Qde7 Kd5 Bb2 Bg3 Qg5 Bh4 Qee7 Kc6 d1Q Qb1 Qc2 Qba2 Rh8 f8Q Qg8 Qff7 Bbe5 Nc4 Qeg5 Nb6 Qe3 Na8 Bb6 Qeg6 Bdc7 Qge6 Qec3 Bd7 Rf8 b8N Qe3 Kb7 Qc4 Bc8 Bed6 Nd7 Bb8 Ne5 Bdc7 Ng5 Qc2 Nc4 Rh7 Na5 Qcc3 Qff6 Rd7 Qff7 Rd2 Nh7 Rb2 Qc6 Qf6 Qcd7 Qd6 Qde6 Qc6+
1rbR2r1/1b2qN1R/NRQn2Nb/7R/3bnnQb/k1B2rp1/5P2/4QK2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 h4 g6 h5 gxh5 g4 Bd7 g5 Bh3 Be2 Bc8 Bg4 hxg4 b4 Kd7 d4 Kd6 g6 h5 g7 e5 b6 a5 b7 c5 b5 c4 b6 g3 Rh4 a4 Ra3 e3 Nf3 c3 Rh2 c2 Kf1 e4 Rd3 a3 Qe2 h4 Qd1 a2 Rh3 a1B Nc3 e2+ Kg1 e1N Ne5 e3 Ng6 e2 Bb2 c1B Na2 Bh6 Nb4 Nd7 b8R Ne5 b7 Nc4 Bc3 Ng2 Na6 Nf6 g8Q Qe7 Qe1 Nf4 Re3 Bfg7 Re5 Ne4 Rh5 Bf6 Rh2 h3 Rh1 Kd7 d6 Kc6 d5+ Kb5 d7 Ka4 d8R Bh4 d6 Ka3 d7 Ncd6 Qe6 Rg8 Qg4 Bb2 Rf8 Rg7 d8N Rg8 Nf7 Ba1 Rd8 Bb2 Qf1 e1R Rh2 Re3 Qe1 Rf3 Kf1 Bf5 Rbc8 Ba1 Rc6 Bc8 b8Q Bb2 Qa7 Rb8 Qc7 Ba1 Rh1 h2 Rb6 Bb2 Qc6 Ba1 Ba5 Baf6 Bc3 Bd4 Rg1 h1B Rg2 Bhg7 Rh7 Bh6 Rh2 B4g5 Rh5 Bgf6 Qd1 Bh4 Qe1 Re3 Bd2 Nf6 Qcd7 Bhb7 Qc6 Rf3 Bc3 Nfe4
1rbR1q2/k1q1Qqp1/1N2r2q/2Q1n3/5R2/r1P3QN/q3bKN1/1n3RQB w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 h4 Rh6 e4 a5 b4 d5 b6 Kd7 h5 Kc6 b5+ Kb7 f5 a4 e5 a3 f6 g4 e6 g3 f7 a2 f8Q g2 c3 d3 Ke3 d2 e7 Qc7 e8Q Ra3 Rh4 Nd7 Qd8 Rc6 h6 Ngf6 h7 Ne4 h8N Ne5 Ng6 Re6 Nf4 Ka8 Bd3 f1Q b7+ Kb8 Be2 f2 Bf3 Ka7 Qc1 d1B b8R Bb7 Qfd6 Nd2 Q8e7 Ba6 Rd8 Bc8 Be4 Bg4 Qd1 Bh5 Qg4 Qc1 Ngh3 g1Q Qd1 Be2 Bh1 Qg6 Qg1 f1Q Ng2 Qf8 Re4 Qgf7 b6+ Ka6 b7+ Ka7 Nhf4 d4+ Kf2 Rb3 Qc6 d3 Na3 Rb2 Rb1 a1R Nc4 Ra3 Qcc5+ Rbb6 Red4 Qb2 Rc1 Nb1 Rf1 d2 Re4 d1Q Red4 Nf3 Nh3 Qdc1 Rg4 Qh6 Rf4 Qa2 Rfd4 Qcf4 b8Q+ Ka6 Qbe5 Rb8 Nb6 Qh2 Qe3 Qc7 Rf4 Ne5 Qg3 Ka7
8/r1nN2rr/2Q1rqQ1/1r4N1/3k1P1p/NB3rQ1/3b2NK/b1BR1rnB w - - 0 1 legal: proof: d4 g5 f4 c5 e4 f5 a4 g4 b4 Qc7 Ra3 Qd8 Rf3 gxf3 g4 b5 axb5 cxd4 Kd2 fxe4 Ke1 Bb7 h3 Bd5 g5 Bc4 Ne2 Be6 Ng1 Bg4 hxg4 Bg7 Qd2 Bh6 Qd1 Bf8 Kf2 Kf7 Kg3 Ke6 c4 h5 c5 Kd5 c6 e5 g6 a5 g7 f2 g5 a4 g6 d3 b6 a3 b5 d2 c7 e3 c8B h4+ Kh2 e4 b7 a2 b6 a1B Qh5+ Kd4 Qe2 d1R Qb5 d5 Bf5 e2 Nh3 e1R Bg2 f1R Qb3 e3 Bg4 e2 Qb5 Nh6 g8N Rd3 g7 Nf5 Nc3 Ng3 Ng5 Qf6 Nb1 Ra7 Na3 Rdf3 Qc6 Na6 b8N Rh7 b7 Nc7 Be6 Bb4 Ne7 Bd2 g8Q Rg1 Bf7 Ref1 Nd7 e1R b8Q Re6 Qb3 Ne2 Qe8 Rd3 Be4 Rdf3 Qg8 Rg4 Qg6 Ng1 Bg8 Rc3 Bg2 Rc5 Be4 Rb5 Qg3 Rf3 Bf7 Ke3 Bg8 d4 Bf7 d3 Nd5+ Kd4 Ne3 Be1 Ng2 d2 Bg8 d1R Bf7 Bd2 Bg8 Ree7 Bb3 Re1 Bed5 R1e6 Be4 Reg7 Bed5 Ne2 Rd1 Ng1 Ne3 Rf1 Bh1 Rf3 Ng2 Rf1 Qe1 Rg3 Qf2+ Rge3 Qg3 Ref3
1n1n4/1QR3r1/N2N3q/r2QrB2/1B2B2n/qb2pq2/Q1b1P3/K1kNBq2 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 c5 g4 cxd4 a4 f5 b5 Bh6 Ra2 fxg4 Rb2 g3 Rb4 axb4 a5 b6 axb6 g4 Ba3 Nf6 Bc1 Bg5 hxg5 Ng8 Kd2 Nc6 f4 Kf7 c4 Kg6 Kc2 Kf5 Kb2 Ke4 g6 e5 b7 d5 b8B h5 c5 h4 g7 g2 f5 h3 f6 b3 f7 h2 f8Q d3 b6 d4 b7 d2 Qe7 Ke3 Nf3 g1R Ba7 d3 b8N e4 Nc3 g3 Qe1 Qd6 Bb6 Nd8 Nd7 Ra5 Na4 Rh5 Ba7 Qh6 Nh4 Nf6 g8Q Re5 Nb8 Nd7 Na6 Nb8 Bg2 Be6 Ka1 Bf7 Bf3 g2 Ba3 d1B Bb4 d2 Qb7 Bc4 Qgd5 b2+ Kb1 Bcb3 Nc3 Rf1 Bb6 g1N Bg2 Rf7 Nf5+ Kf4 Bf3 Rg7 Nd6 Ke3 Bg2 Nf3 Rf1 Nh4 Rf7 h1Q Rc7 Ba4 Ka2 Bdc2 Qa1 d1Q Qb1 Qdf1 Nd1+ Kf4 Ba7 e3 Be4 Qhf3 Bd2 Kg3 Bb6 Rb5 Bba5 Kg2 Bab4 Ra5 c6 Kg3 Re7 Kg2 c7 Kg3 Nc3 Kf2 c8B Qc1 Rc7 Qf1 Qa1 b1Q+ Ka3 Qbd1 Kb2 Bab3 Bcf5 Qde1 Bc1 Qd2 Qa2 Ke1 Ka1 Qd1 Ba3 Qd2 Nd1 Qb4 Bcb2 Qa4 Bd4 Kd2 Bb4+ Kc1 Bdc3 Qa3 Be1 Rg2 Rg7 Rg3 Rc7 Rg7
kb1B1qQ1/nbQ2R1N/QQ2qr2/4n3/r1N4K/bpP2R1n/3b1N2/1Rq5 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 h5 exf5 c5 b4 axb4 Bh3 cxd4 fxg5 Qb6 g6 Qa5 g5 Qd8 Bg4 hxg4 Kf2 b5 Kg3 d5 h4 Kd7 a4 Kc6 h5 Kb7 c3 e5 g7 b3 f6 d3 f7 e4 g6 d2 a5 d4 h6 d3 h7 e3 Na3 b2 Nc2 b1Q Qe1 d1N Qe2 d2 Nh3 b4 Nf4 b3 Qc4 e2 Rf1 Nd7 Na3 Ne7 g8R Qf5 g7 Nc6 Nd3 e1B+ Nf2 Qe6 Rb1 Nde5 a6+ Kb8 Qf4 Bb7 Nc4 Ba3 Rf8 Na7 g8Q Qdc8 Kh4 g3 Qd4 g2 Qb6 g1B Qg7 Rg8 h8Q Bh2 Qgh7 Rg6 Q8g8 Rf6 Qhg7 Nb2 Qg3 d1Q Bg5 Bd2 Qf4 Rg6 Bd8 Qc1 Qg3 Qc5 Qf4 Nd3 Qg3 Nb5 Qf4 Rf6 a7+ Kc8 Qfg3 Nf4 Q3g7 Nh3 Qg3 Rb8 a8Q Qb4 Qa4 Ra8 Qaa6 Kb8 Q3g7 Ra7 Qg3 Ka8 Qf4 Nd3 Qfc7 Qbd6 Nd1 Qc5 Rf3 Ne5 Nf2 Qcd6 Re8 Qde7 f8N Q7f7 Nh7 Qf8 Re7 Bhf4 Qa4 Ra5 Rf7 Na7 Qac6 Ra4 Qa6 Ng4 Q7b6 Bb8 Qcc7 Ne5
NQ6/BQKq4/1Bn2B1n/N2qn2q/nr3prN/k4PbQ/3Q4/r1R3b1 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 d5 axb5 c5 Ra4 Bb7 Ra1 cxd4 Ra3 d3 Ra4 d4 Ra1 Bd5 exd5 Qd6 Ra4 Qd7 Ra1 Qd8 f3 g4 Ra3 g3 Ra5 Qc8 Ra1 Qd8 b4 Qd7 Ra6 Qg4 Re6 Qf5 Re2 Qd7 Rf2 Qd8 Kd2 gxf2 g4 h5 g5 Bg7 Bh3 Bf8 Bg4 hxg4 c4 Kd7 h4 Kd6 b6 f1Q h5 f5 b7 e5 g6 a5 c5+ Kd7 d6 Kc6 d7 Kb5 g7 e4 h6 f4 c6 a4 h7 a3 c7 g3 c8N g2 Nb6 a2 Ne2 g1B Ng3 a1R Bb2 Be7 Nf5 Nc6 b8Q Qe8 d8B Qh5 Qb7 Nh6 g8Q Qfh3 Nh4 Rb8 Qe8 Qd7 Na8+ Kc4 b5 Kb4 b6 Rg8 h8Q Rg4 Na3 Bg5 Nc4 e3+ Ke1 d2+ Ke2 Be7 Kd3 e2 Ke4 e1N Na5 d3 Bf6 Ka3 Qe2 d1N Qd2 Bb4 Qe6 Nb2 Qe5 Qdf5+ Kd5 Na4 Qhh7 Bc3 Kd6 Qe4 Kd7 Qd5+ Kc7 Bcd4 Qe8 Bdf2 Qeg8 Bg3 Qd7 Rg5 Qh3 Rg4 Qh8 Ne5 Qg8 Nc2 Qf8+ Nb4 Qd6 Bd4 Rc1 Bg1 Qc8 B3f2 Qc6 Rg6 b7 Qe4 Qd1 d2 Bde7 Rg8 Bc5 Bg3 Qe2 d1Q Qcb5 Qdd4 Qd2 Rg4 Qg8 Rd8 b8B Qed3 Bba7 Rb8 Qd8 Q4e4 Be3 Nbc6 Qa6 Rb6 Qb7 Rb4 Beb6 Qec4 Qe8 Qdf5 Qf8 Qd5 Qfb8 Qfd7#
Qq3RB1/B5N1/q1nbN1rb/Q1qK3p/3Qr3/rPb4B/2B5/N1r1k2n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 g4 Qb6 Ra3 Nc6 Rf3 Nb8 Rf4 gxf4 Bc4 Bb7 Bf1 Bd5 h3 Bf7 g5 Bh5 Kf2 Qc7 Ke1 Bg4 hxg4 Qd8 Kf2 Kf7 c4 a5 c5 e5 g6+ Kf6 b3 Kg5 f6 h5 b6 d5 g7 a4 c6 a3 f7 d3 c7 d4 c8B d2 b7 d3 Rh2 a2 Bd7 a1B Nc3 f3 Ke3 f2 Rh4 Nc6 b8Q Nf6 g8B Bd6 f8Q Ra3 Qc2 d1R Nb1 d2 Ne2 Bc3 Qa2 Rh6 Qg7+ Rg6 Qa8 Qb8 Bh3 f1Q Nd4 Qa6 Bf5 Rf1 Qga7 d1Q Qb2 Qc2 Ne6+ Kh6 Qa1 Rg1 Bb2 Rc1 Qd4 Bd2+ Kf2 e3+ Kf3 Qcc4 Bc2 e2 Bc3 e1R Ba5 Qcb5 Bb6 Bc3 Ba7 Ne4 Qa2 Nf2 Qa1 Ra5 Na3 Re4 Qa2 Qc5 Qa1 Rg7 g5+ Kg6 Rf4 Nh1 Rf8 Bd2 Bb1 Ra4 Nc2 Ra3 Qac3 Bf4 Qa5 Be3 Na1 Bd2 Bg2 Be3 Bf7+ Kf5 g6 Bh6 Bc2 Rg8 Nc7 Kg5 g7 Kh4 Bh3 Rg4 Bc4 e4+ Ke2 Kg3 Ne6 e3 Kd3 Rg6 Ke4 e2 Bd5 Rh8 g8N e1B Nf6 Bc3 Ne8 Rh7 Bc4 Rb7 N8g7 Rb4 Nf4 Rba4 Bg8 Rc4 Nfe6 Rb4 Bg4 Kg2 Bf5 Kf1 Bg4+ Ke1 Bh3 Qcb6 Kd5 Rc4 Qe5+ Re4 Qd4 Qc5+
1N1q4/1r1n1Qq1/R1r1b1N1/3pRr2/1b2r1P1/1k1Kn3/2R1NBQ1/1b1nR1Q1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 h5 g3 g5 Ra3 gxf4 Ra1 h4 Bg2 h3 Qe2 hxg2 Qd3 Bh6 Qd1 Bf8 Ke2 Kf7 c4 d5 b4 e5 h4 a5 f6 Ke6 f7 e4 g4 a4 b6 e3 c5 a3 c6 a2 b5 f3+ Kd3 e2 b7 e1R c7 f2 b6 f1B+ Ne2 g1R h5 Nd7 b8R Ra7 h6 Rb7 h7 Nh6 Nd2 Kd6 Nc4+ Kc5 Ne5 Kb4 Ng6 Nf5 Be3 Ka3 Qb1 Bb4 Bf2 Rf8 h8Q Ne3 Qh2 Rg2 Qc1+ Kb3 Ra8 Rg3 Ra6 Rf3 Qh3 Rf6 Qg2 Rd6 Qc5 Rc6 Rd1 a1Q Rh5 Re8 f8Q Re5 Qf7 Rf5 Qg1 Qb2 Qd6 Bg2 Qdh2 Bf3 Qhg2 Qa1 Nc3 Be4+ Kd2 d3 Q1h1 Nf8 Ra2 Re6 Nh4 Rf4 Qg8 Nc2 Ng6 Ra7 b7 Bd7 b8N Rb7 c8R Ra6 Ra5 Be6 Qhf1 Nd7 Qfg1 Rf7 Rcc5 Rc6 Ra6 Rf4 Qf7 Re3 Re5 Rf5 Re1 Qb2 Kd1 d2 Ne2 Bd3 Re4 Qg7 Re5 Re4 Rc4 Na3 Rc1 Bb1 Rc2 Nc4 Nc3 Rd4 Ke2 Re4+ Kd3 d1N Ne2 Nce3
k2bN1RN/2n3q1/r1b1rr2/1PKb1nN1/B3qB2/7q/3Q2Qp/1Br2Q1Q w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 Kf2 Kd7 e4 f5 d4 c5 g4 h5 b7 Kc7 e5 b3 e6 b2 g5 h3 e7 h4 g6 c4 g7 f3 Ke3 c3 Na3 b1Q Bd3 c2 Nc4 h2 Nh3 f4+ Ke4 Rh6 e8B f2 Bh5 f1Q d6+ Kd7 Rg1 h1B+ Bf3 Qb4 Kd5 Na6 b8Q Be7 Qb7+ Qc7 Qc6+ Kd8 d7 Re6 Nd6 Nh6 Ne8 Bb7 g8Q Qg2 Bd2 c1R Bb1 Qa4 Bfe4 f3 Bec2 f2+ Qf3 Qa3 Ba4 f1R Qh7 Qe2 Rg8 Qed3 Ng5 h3 Qhe4 h2 Qh3 Rff6 Qf1 Bf3 Be3 Nf5 Bd2 Bd1 Qeh1 Qh3 Be3 Qb4 Bd2 Bc2 Be3 Qe1 Kc4 Ra7 d5 Ba8 Bf4 Qee3 Qc5 Bc6 Qfg2 Qee5 Qcf2 Ra8 Qff1 Qa7 Nd6+ Kc7 d8N Kb8 Ne8 Qac7 d6 B2e4+ Bac2 Ra7 Ndf7 Ka8 Nh8 Qd7 Qd1 Nc7 Qdf1 Ra3 Kb4 Ra6 Ba4 Bc2 Kc4 Qe4+ Kc5 Bd3+ Qc2 Bc4 Qa2 Bd8 Qag2 Qg7 d7 Be7+ Bd6 Kb8 d8Q+ Ka7 Qd7 Bd8 Bf4 Ka8 Qdd2 B4d5+
2n2B2/2q2q1B/1R2bBQp/N3q1b1/5bR1/1r1n1KRQ/kP3qR1/1nQ1r3 w - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 a5 axb5 e5 Nf3 exf4 Ne5 a4 Nf3 a3 Ng1 a2 Rh3 axb1Q Rh2 Nd7 Rh1 Nb8 Kf2 Kd7 g4 Kd6 e4 Kc5 d4+ Kb4 b6 c5 g5 f5 b7 h3 d6 h6 d7 h2 e5 f3 g6 f4 d5 c4 g7 c3 d6 c2 e6 Kb3 e7 Qa2 e8R Qc7 d8Q Ne7 g8Q+ Be6 d7 Na6 b8R+ Nb4 Rb6 Ra3 Bd2 Nc8 Ne2 Be7 Qg6 Bg5 Rg1 h1Q Rg8 Qh2+ Rg2 Qe5 Rg7 Re8 Qc1 Re7 Qg8 Qc7 d8B Qe5 Qe1 c1B Q8f7 Re8 Qff5 Qc7 Bf6 Qg3+ Kg1 f2+ Kh1 f3 Qh3 Qge5 Nd4+ Ka4 Bf4 Nd3 Nc6 Rb3 Na5 Bd2 Bg3 Bdf4 Qc1 Re7 Be2 f1N Bd1 f2 Bc2 Nd2 Bh2 f1Q+ Bg1 Qfe2 Bc5 Re8 Bf8 Q2e3 Rg4 Nb1 Kg2 Q3c5 Rg8 Qf7 Kf3 Qcc7 Rd6 Kb4 Rg7 Qa4 Ra3 Qab5 Rg8 Qbc5 Rg2 Re7 Rb6+ Qb5 Ra2 Nc5+ Qe3 Rc3 Bh8 Bh4 Ra3 Qd5+ Qe4+ Qd4 Q4d3 Bf5 Qed2 Re1 Qc1 Be6 R8g4 Bhg5 Bf6 Qde5 Rb3+ Ka4 Kf2 Qa6 Rd6 Qab6 Qh7 Rd3 Qg7 Rc3 Bh7 Qba7 Rd3 Qab6 Rdg3 Nd3+ Kf3 Qg1 Rb7 Qgb6 Nc6 Kb3 Na5+ Ka2 Qg6 Rb3 Rb8 Qg1 Rb6 Qf2+
3nQ3/1rr1B2k/1NBKp2N/q1Qbbb2/n3R2q/P3r3/Q2B3b/N5Nq w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 Kg7 Kd4 c5+ Ke5 h5 f4 b5 d4 c4 g4 b3 d6 e6 d7 h3 f6+ Kh7 f5 b4 g5 b2 a3 h4 f7 b3 f6 c3 d5 h2 d6 c2 Qe2 h3 Bd2 c1B Bg2 Na6 Bc6 Nh6 Qf2 Qb6 d8Q Bb7 d7 Rc8 Qe8 Rc7 d8B Nc5 Be7 Na4 Kd6 Qa5 Qc5 Bg7 f8Q Ba8 f7 Bd4 Nc3 b1B Nce2 Bcb2 Nc1 Bf5 Qc2 Bb6 Qb1 Ba7 Qa2 Bb8 Rb1 Bg7 Ra1 b2 Nb3 Bf6 Rf1 b1R Rf4 Bb2 Re4 Re1 Na1 Re3 Nf3 Bb7 Re1 h1Q Ng1 h2 Re5 Qe4 Re2 h1Q Re1 Rg8 g6+ Kh8 g7+ Kh7 Re2 Qeh4 Re1 Rh8 g8N Ba8 Bd7 Bd5 Bc6 Ng4 Re4 Ne5 Nh6 Rg8 Qc8 Rgg3 Qfe8 Rb3 R1e2 Rge3 Re1 Rbb7 f8N+ Kh8 Nd7+ Kh7 Bb5 Nc6 Nb6 Nd8 Bc6 Ba7 Nd7 Bad4 Nb6 Bf6 Re2 Bg5 Re1 Bf4+ Re5 Bh2 Re2 Rh3 Re4 Re3 Bd7 Rc1 Qcc4 Rc2 Qd4 Rc8 Bc6 Rcc7 Qc5 Bbxe5+
Q2QNq1b/q2QNb1b/N1P2b2/K1R2q1R/n2B2rR/1n1n4/2rp2k1/5R2 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Kd2 Kf7 c4 a5 h4 d5 b4 e5 b6 a4 b5 g3 h5 e4 g6+ Kf6 c5 Ke5 b7 a3 h6 a2 c6 e3+ Kc2 Ke4 Kb3 d3 g7 e2 f6 e1N f7 f3 b6 d2 h7 f2 Nf3 f1Q Rh3 g2 Nh4 g1Q Qc2+ Nd3 Qc3 d1B+ Qc2 d4 Na3 Nh6 g8R Qf5 Bb2 Be7 f8Q Bf6 Nb5 Na6 Ka4 Bh5 b8Q Bf7 Rf1 a1B Rg5 Rg8 Ka5 Nc5+ Qa7 Rb8 h8R Na4 Qa8 Bd7 Rh5 Rg4 Qd1 Qgf2 Qd6 Qf8 b7 Re8 b8N Re5 Na6 Rc5 Rhh1 Rc2 Ng6 Bde8 Qe1+ Kf3 Qd7 Kg2 Qd1 Bg8 Bc3 Bef7 Ne7 Bh7 R1h4 Qg1 Nd5 Qe3 Nd6 Qee7 Qdd8 Qa7 Bb2 Nf2 Rg5 d3 Ne8 d2 Bd4 Nd3 Rhh5 Qc8 Ne7 Nf5 Qe1 Qcd7 Qe6 Qc8 Qed7 Bb2 Bc3 Nd4 Rc5 Nb3+ Kb5 Qcc7 Bd4 Qe5 Rh4 Qf5 Rh5 Bhg8 R8h6 Bh8 Rh4 Bh7 R6h5 Nbc1 Ka5 Ba1 Be3 Baf6 Bd4 Nb3+
k1q1rn2/P4Q1n/pB1b4/Q1b3rR/4K2n/nr1RN1q1/1N1R1N1N/3bQ3 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a5 a4 axb4 a5 Bg7 a6 Bh6 a7 Bf8 Ba6 bxa6 Ke2 Kd7 Kd3 e5 f4 h5 g4 c5 f6 Kc7 f7 Kb7 d6 c4+ Ke4 h3 d4 b3 f5 h4 f6 h2 g5 c3 d5 c2 g6 h3 g7 b2 d7 Rh5 d6 Rg5 Na3 b1N Be3 c1B Bb6 Be3 Nc2 Bc5 Ne3 Na3 Nf3 Qe8 d8Q Bg4 d7 Bfd6 f8N Qe6 f7 Nf6+ Kd3 Nh7 g8N Bh5 Ra2 e4+ Ke2 Qg4 Ne6 Qg3 f8Q Bg4 Qf7 Bh5 Nd5 e3 Kd3 e2 Rd2 e1N+ Ke4 Ng2 Nh6 Nh4 Qe1 Bg4 Nef4 Bh5 Rf1 h1Q Ne3 h2 Nd3 Qhg1 Rff2 h1R Nhg4 Rh3 Nfh2 Qf1 Nb2 Qc4+ Rd4 Qc3 Rf5 Qc1 Nf2 Bd1 Rd3 Qc3 Qh5 Qh8 Qf6 Qc8 d8R Nd7 Qff7 Rb8 Rd2 Ka8 Rfd5 Ndf8 Rd7 Rg7 Qe5 Rg8 Qc3 Rg6 Rh5 Rg5 Qa5 Qg1 Nec4 Rb3 Ne3 Qg3 Rd8 Be7 R8d3 Bed6 Qe7 Qd7 Qg7 Re8+ Qe7 Qc8 Qe6 Be5 Qf7 Bed6+
3b4/5N1K/n1Rp2RB/b3n2Q/3q2bN/RNPQr3/2Q1Rb1n/bb2r2k w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Ke2 Kf7 Kd3 a5 Ke4 e5 b4 f3 h4 a4 f6 Ke6 f7 f2 g6 f1N h5 d3 b6 d2 g7 a3 b5 g3 b7 a2 b6 g2 h6 Na6 b8Q Nh2 b7 Ne7 g8Q Nc6 h7 Be7 Nf3 g1B Nh4 Bf2 Qg3 Re8 Qh5 d1B f8R Bg4 h8N d6 Qa3 Qb6 Re1 Bd8 Rg8 Kf6 Qd3 Bcf5+ Kd5 e4 Bh6 e3 Re2 Re6 Nd2 Ne5 Nf7 Re7 Rc1 a1B Qc8 Qb2 b8R Re6 Ree1 e2 Rb3 Ra7 Ra3 Rae7 Nb3 Bg6 Red1 e1B Rd2 B6f5 Re2 Bea5 Rg7 Bg6 Nf5 Qc3 Ke4 Qc5 Kf4 Qd5 Qc6 Qd4+ Qce4 Re8 Nh4 R6e7 Rg8 Ke6 Kg5 B6f5 Qee3 Kd5 Rg6 Be4 Kf6 Re6+ Kg7 R8e7 c3 Bef5 Qd1 Bb1 Kh7 Re8 Rcc2 R6e7 Qed2 Re6 Rca2 R8e7 Be3 Ke4 Q1c2+ Nd3 Rb2 Nb8 Nc1 Na6 Rb6 Re5 Nb3 R7e6 Rc6 Re7 Nf5 Kf3 Bh6 Kg2 Nh4+ Kh1 Qe3 R7e6 Rd2 Re8 Qh3 Re1 Re2 Re4 Qg3 Ne5 Qgd3 Re3
1kq3Nn/3Br1K1/qb1q3B/B3b3/1r1Q4/1RN1qQB1/N1nq2Pp/5q1Q w - - 0 1 illegal: No possible last move
1RnRB1r1/b2BrR2/n5nk/p1qQ3n/2n2R2/3KP1bQ/1N5n/B5qQ w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ke1 h5 Nc3 f4 Nd5 Bb7 Ne3 Bd5 Bg2 Be4 Bf1 Bf5 gxf5 Bc5 Ng4 hxg4 Bg2 Be7 Bf1 Bf8 Kd2 Kf7 h4 a5 b4 d5 c4 g5 h5 Kg7 b6 f2 f6+ Kh6 f7 g3 b5 f3 b7 d3 c5 g2 c6 d4 c7 g4 c8B g3 b6 Rh7 Rh4 Bd6 f8R Qg5+ Rff4 Na6 b8R Qc5 b7 Ne7 Qe1 Ng6 Bf5 Re7 Nh3 g1B Bb2 g2 Bd7 Be5 Rf7 Bg3 Rd8 Rc8 Rhf4 Ra8 Kd1 d2 Rb1 Rb8 Bc3 Ra8 Kc2 d1N b8Q d3+ Kd2 Ne3 Qb7 Nd5 Ba1 Nb6 Qd5 Nc8 Rb6 Re3 Rb8 Re7 Kd1 d2 e3 B1h2 Bc4 f1N Kc2 g1Q Kd3 d1N Bcb5 f2 Be8 Nh4 Bbd7 Nb2+ Ke2 Nc4 Kd3 Ng6 Qd1 Nfd2 Qh1 f1N Nf2 Ne4 Qb3 Ncd2 Nd1 Nf6 Nb2 Nc4 Qb5 Kg5 h6 Nh5 h7 Kh6 Rg4 Bc7 Qbc6 Bb6 Rgf4 Bg3 Qcg2 Ba7 h8Q+ Kg5 Qgh3 Nh2 Qe5+ Kh6 Rb3 Rb8 Qed5 Rb6 Rb5 Rbe6 Rb8 Rf6 Rg7 Rf8 Rgf7 Rg8
nR1NR1r1/1Qr5/2n1p1R1/5Q2/2QNb1bR/BN1K4/3P1bb1/nn1kq1n1 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b4 a6 b6 Bd7 b7 Nf6 b5 Ng8 b6 Bc8 Bb5+ axb5 Ke2 Kd7 f4 Kd6 g4 Kc5 g5 Kb4 f5 h5 d6 c5 g6 c4 f6 e3 d7 c3 g7 c2 f7 Kb3 Ra7 h3 Qe1 h4 Qf1 h2 Ra4 b4 Qf2 h3 Qf3 Ra7 Qc6 Nf6 g8Q Ne8 Qcg6 Nc7 Qg2 Qe8 d8Q Na8 Ra2 Bg4+ Kd3 e2 Qd7 e1N+ Kd4 Nf3+ Kd3 Nc6 b8R Rc7 Ne2 Ng1 b7 Bh6 Ra7 Be3 Nbc3 Bf2 Ba3 c1N+ Ke4 Kc2 f8N b3 Ra6 b2 Qc4 b1N Qf5 Qd8 Na2+ Kd1 Nd4 Qe8 Nfe6 Nb3 Nd8 Rg8 Nc1 Na1 Ncb3 e6 Ra4 Qf7 Kd3 Qh7 Rc8 Qh4 b8R Qg3+ Ke4 Qe5+ Kd3 Qe1 Qgd5 Nf3 Rf1 h1B Rg1 h2 Qdb5 Bg2 Qb7 h1B Rb4 B2h3 Rg3 Ng1 Ra4 Bgf3 Rg6 Bh5 Nf7 B5f3 Re8 B1g2 Nd8 Bhg4 Ra5 Ne2 Re5 Ng1 Re4 B4h3 Rh4 Bhg4 Ne2 Bd5 Ned4 Bde4+
n3N3/2n1nnQ1/pk3B2/4rq1r/3qbPq1/1B3QR1/1NbB3N/Bq1Q1K2 w - - 0 1 legal: proof: f4 b5 b4 h5 a4 c5 axb5 e6 d4 cxd4 g4 hxg4 Ra3 Be7 Re3 Bg5 Re4 f5 e3 fxe4 f5 Bf4 exf4 Rh7 Bh3 Rh5 Bf1 Rh8 h4 g5 c4 d5 c5 Kd7 b6 Kc6 h5 a6 f6 g3 h6 g2 b7 d3 f7 g4 f8N g3 h7 d4 Rh6 d2+ Ke2 d3+ Ke3 Qa5 Rh1 e5 Na3 Bf5 Rh5 Ne7 Nh3 g1Q+ Nf2 g2 Ne6 Nd7 b8B Nb6 b5+ Kb7 Bc7 Rae8 Bd8 Na8 b6 Qb5 Qf3 d1B Nc4 d2 Nb2 Bc2 Bc4 d1N+ Ke2 Ne3 Rh3 N3d5 Nc7 e3 Rg3 e4 Bd2 Qb1 Ng4 g1Q Nh2 Qd7 Rh3 Qg4 Rg3 Bg6 Ba2 Qdf5 Bb3 Kc6 b7 Qg1 Ne6 Ndc7 b8B Kb5 c6 Kb6 Ng7 Qa1 Nd1 Qd4 Ke1 e2 Nb2 Qde5 Kf2 e1N Kf1 e3 Qd1 Nf3 Ba7+ Kb5 Bd4 Ng5 B4c3 Qd4 Qf3 Ng8 Bf6 Re5 Ne8 Nf7 Qd1 Ne7 Qf3 Rf8 h8Q Kb6 Qg7 Rh8 Qd1 Rh5 Qf3 Ne6 c7 Bh7 c8Q Nec7 Qd7 e2+ Kg2 e1Q Qd8 Qee4 Kf1 Qa4 Qdd3 Qa1+ Qd1 Qd4 Qf3 Qa2 Nd3 Qb1 Ba1 Qe6 Nb2 Bhe4 Qe2 Qc8 Qf3 Qcf5
1n3K2/4R1R1/r2q2R1/1b1bpqR1/QNb1q1Pb/Qb1B1n2/Bn4Q1/B2k4 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 e4 f6 d5 cxd5 f4 Ra6 f5 Rc6 Nc3 d4 Nd5 Rc4 Nf4 gxf4 e5 Rc3 g5 Rg3 hxg3 fxe5 g4 e4 Kf2 Kf7 b4 e5 c4 h5 b6 d5 b7 f3 Kg3 d3 Kh4 e3 c5 f2 c6 a4 b5 a3 b6 e2 c7 e1Q f6 Kg6 f7 a2 Bb2 d4 Qf3 d2 Bd3+ Qe4 Ba3 d1N Qg2 f1B Ne2 Nb2 Nc3 Be7 f8Q Nh6 Nd5 Nf7 Nb4 Bd7 c8B Bb5 Be6 Qd6 Rd1 a1Q Ba2 Rh6 Rd2 Nd7 b8R Qb1 Re8 Nb8 b7 Bd8 Re7 Qc2 Be2 d3 Qe8 Bc4 Qa4 Qb1 Rc2 d2 Bd3 d1B Rh2 Bb5 Rc6 Bb3 Ra6 Be2 Rh1 Qc2 Rc1 Qc8 Rcc7 Qcf5 Rcd7 B3c4 Rc7 Bd1 Rcd7 Bdb3 Rc7 Kg7 g6 Kf6 g7 Ng5 g8R Rg6 Reg7 Rh6 Rce7 Nf3+ Kh3 h4 Rc6 Na6 b8Q Rg6 Qc8 Kg5 Qa8 Kf4 Rb6 Ke3 Qa7 Nd1 Bb2 Nb8 Ba1 Nb2 Qa3 Re6 Q7a4 Rf6 Rg5 Rg6 Rgg7 Re6 Qg3 Kd2 Qg2+ Ke1 Rbb7 Kd1 R7g6 Qd7 Reg7 Ra6 Rc7 Qd6 Rce7 Ng1+ Kh2 h3 Kg3 h2 Kh4 h1B Kh5 Nf3 Kh6 Qff4 Rgf7 Qff5 Kg7 Bb6 Kf8 Bf2 Rff6 Bh4 Rg7 Bf7 Qh2 Bg2 Rfg6 Bf1 Qg2 Be2 Bdb1 Bec4 Bd3 Bfd5+
QNB2N2/1nR1Q2r/1R2qNRQ/1r4q1/n2P4/q3q1R1/1kp2qq1/1rb4K w - - 0 1 illegal: No possible last move, all moves rejected
Q2Rqn1r/4QB2/n1Nn3B/K1N1q2n/1pQ5/2N3N1/b2bP3/2bBk1qb w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 a4 h5 Ra3 b5 Rc3 f4 Rc6 Ra6 Rg6 Rf6 Rg5 Rf5 gxf5 Kf7 Rg2 Ke8 Rg4 hxg4 h4 Ke7 d4 Kd6 Kd2 c5 f6 g5 h5 b3 Kc3 b2 f7 g3 a5 f2 h6 b4+ Kc4 g2 Kb5 c4 h7 g4 a6 g3 a7 c3 a8B c2 Nf3 g1Q Nfd2 f3 Bc6 g2 Nc3 Qe8 Ka5 b1B Ba4 Bh6 f8N Qh2 Nd7 g1Q Bh3 f1N Be6 f2 Bf7 Ne7 Nc5 Ne3 Nf1 Bb7 Qd3 Qe5 Qc4 N3f5 Ng3 f1N Bg5 c1B Bd1 Ba2 Be3 Rg8 h8Q Ng6 Qg7 Bf4 Rh8 Nf8 Qh7 Na6 Qh1 Ke7 d6+ Kf6 d5 Kg5 d7 Kg4 d8N Nd6 Nc6 Ba8 Bd4 Bfd2 Be3+ Ne4 Bf4 Nd6 Qh7 Bb7 Bh6+ Kh3 Qg7 Kg2 Qg5 Kf2 Qe7 Rg7 Rg8 Ke1 Rh8 Rh7 Rg8 Ne4 d6 Rh8 d7 Nd6 d8Q Ba8 Nb8 Bh1 Nc6 Ne3 Qa8 Nef5 Rg4 Ng7 Rd4 Nh5 Rd5 Nc8 Rd8 Nd6
Q7/R2r2K1/2Q1b1n1/bPpr1n1p/1RBBk1rR/7R/q7/NnBq2Qb w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Na3 exf4 Nc2 Qd6 axb5 Qd7 b6 Qd6 b5 Qd8 Nb4 axb4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 d4 c5 g4 h3 g5+ Kg6 Ke5 f5 e4 b3 d6 h2 b7 b2 d5 b1Q d7 f3 d6 f4 Ra7 f2 Nf3 Bh6 Ne1 f3 Bc4 f1B Nc2 f2 Na1 Bg2 Qg1 f1N Ke6 Nc6 b8Q Qb2 e5 Nce7 Qb7 Qa2 Qc6 Rb8 Qa8 Rh7 Qc6 Kg7 g6 Bd2 Qa8 Kh6 g7 Kg5 Kf7 Kf5 e6 Ng6 e7 Ba5 e8Q N8e7 Qc6 Rb7 Qh8 Rh6 g8R Nd2 Kg7 Nb1 Rf8+ Ke5 Rf4 Bd5 Rf3 Ke4 Rh3 Rc7 Qf8 Rh8 Qe8 Rf8 Qa8 Rf4 Qc6 Rg4 Qh8 Qe8 d8B Be6 d7 Rb7 Bc7 Qb8 B7f4 Qd6 d8R Rc7 Bfe3 Rd7 Qa8 Bc6 Qh6 Qd1 Bd4 Bcd5 Rf8 Bb7 Rff3 Bc6 Rb3 Rd5 Qf2 Rd7 Rb4 Bcd5 Rf1 h1R Qg1 Rh2 Rh4 Rd2 Rf3 Bc6 Rfh3 Bb7 Bf6 R2d5 Bd4 Rg5 Qhh8 Kf5 Qhc8 Bh1 Rb7 Ke4 Ra7+ Rgd5 Qcc6 Nf5+
BB1kN3/2n1N3/bN3r1B/4r1K1/P1qr3n/b6Q/b2pQ1bp/R4QBb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d3 h5 d4 cxd4 gxh5 g5 h4 Ra6 a3 Ra7 h6 Ra4 h5 Ra8 a4 Ra6 Ra3 Ra7 Rah3 Ra8 Rh4 gxh4 Kd2 d5 f4 b5 c4 e5 h7 d3 Ke3 e4 c5 d2 f6 b3 f5 h3 Kf4 b2 h6 d4 c6 h2 c7 b4 Nh3 d3 Ng5 b3 Na3 b1B Ne6 b2 Bg2 e3 Nc4 e2 Nb6 e1R Kg5 Ba3 Qe2 d1B Bf4 Ra6 Ba8 Qd5 f7+ Ke7 Bg3 d2 Ng7+ Be4 Ne8 b1B Rg1 Bb7 c8N+ Kd8 f8Q Bg2 Ne7 Qc4 f6 Ba2 f7 Bh1 Rf1 Bbg2 Bf2 Bc2 Bc5 Bd3 Bg1 Rb1 Rd1 Rb2 Ra1 Rb4 Qg7 Rb5+ Qge5 Rd5 f8B Rd4 Qf5 Ra5 Bg7 Na6 Be5 Nc7 Qff1 Ra6 Bf4 Nf6 Be5 Nh5 Bf4 Rf8 h8Q Ng7 h7 Nf5 Be5 Ra7 Bg7 Nh4 Bh6 Rd7 Qc3 Rd4 h8B Ra5+ Be5 Rf6 Qb3 Qe6 Qc3 Ba6 Qg3 Qc4 Qh3 Nd5 Bb8 Nc7+ Qe5 Nf5 Qee3 Re5 Qee2 Nh4+
2b2rn1/Qb4p1/QN2n1B1/RQ1nr2R/1n1prP2/2bR1K2/qNk4N/5N2 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 f5 exf5 b5 a4 c5 Ba3 cxd4 axb5 Kf7 b6 Ke8 b5 Ra7 Bc5 Ra8 Bb4 axb4 Ke2 Kf7 f4 Kf6 c4 d5 h4 e5 c5 e4 b7 b3 b6 e3 c6 g3 h5 d3+ Kf3 g2 h6 b2 c7 e2 h7 e1R Rh3 d4 Qe2 d2 Qa6 d1N Ra5 Re5 Nd2 b1B Bd3 Ba3 Nf1 Nc6 b8Q Bb2 b7 Ne3 Qba7 Bc3 b8Q Nd5 Qbb5 Qd7 Rh5 Qe6 Rh3 Bb7 c8N Ncb4 Nb6 Re8 Na4 Bc2 Nb2 Bd1+ Kf2 Bg4 Nf3 g1N N3h2 Nf3 Bb1 Ng5 Rd3 Qc6 Kg2 Ne6 Kf2 Bh3 Kf3 Qc4 Bc2 Qa2 Bb1 Kf7 f6 Kg6 f7 Kf5 f8N Re7 Nd7 Re8 Kf2 Ke4 Nb6 Nc5 Ke2 Bhc8 Kf2 Ne6 Kg3 Nh6 Kg2 Rhf8 h8R Ng8 Rh5 Nc5 Kg3 Ref5 Rd2+ Nc2 Nd3 Ncb4 Rd1 Re6 Nd2+ Ke3 Ndf1+ Ke2 Kg4 Re3 Bc2 Ne6 Bb1 Rfe5 Nb2+ Qc4 Bh7 R3e4 Rd3 Qa2 Bg6 Bd2 N2a4 Kd1 Nb2+ Kc2 Kf3 Bc3
1B1bK3/1brr1P1p/4p3/1nQRQQ2/k2n1RNR/2BB1bn1/6r1/1q1r3B w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f5 Na3 fxe4 Nc2 Nh6 axb5 Nc6 b6 Nb8 b5 Ng8 Nb4 axb4 Ke2 Kd7 Ke3 c5 Kf4 e3 Ke5 b3 d4 b2 f4 b1R g4 h3 b7 e2 f5 e1N g5 c4 g6 c3 f6 h2 g7 c2 d6 Rb4 b6 Kc6 d7 Rc4 Ke6 Kb5 Kf7 Ra7 d5 Na6 b8B Nb4 b7 Nc6 d6 Ra8 Nh3 Nd4 Qg4 Ra6 Ra4 Qb6 d8Q Ra7 d7 Nef3 Bd3 Nh6+ Ke8 Rg8 Qc7 Nhf5 d8R Ng3 Bd2 c1R Nf2 Rd1 Qgf4 Bg4 Bc3 Bc8 Rf1 h1B Ng4 Bg2 Rb4+ Ka5 Qc6 Nb5 Qf5 Nd4 Rf4 Bf3 Rd5 Rc5 Qd6 Rc7 Qc5 Rd7 Be5 Rc7 b8Q Rd7 Qbd6 Rac7 Qde6 Bb7 Bd6 Rh8 g8B Bh6 Qee5 Bg5 Rb2+ Ka4 Rh2 Na3 Rh1 Qb1 Rh4 Nb5 Rh3 Bh6 Rh4 Bf8 Bf7 Rg8 Bg6 e6 f7 Rg7 Bh5 Be7 Bg6 Rc6 Bb8 Bd8 Be4 Be2 Bh1 Bf3 Qg5 Rcc7 Bd3 Nh5 Qgf5 Rg5 Nf2 Rg2 Ng4 Ng3
2N3b1/1Qq3R1/n1Rq1k2/BN1p1nr1/3K1n2/3p2bQ/Q1PNR1r1/2n2nN1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Kf2 Kf7 b4 e5 h4 d5 b6 a5 b7 e4 f6 a4 h5 f3 g6+ Ke6 g7 d3 Ke3 g3 f7 a3 b5 f2 h6 f1N+ Kd4 g2 b6 a2 h7 e3 Nd2 e2 Rh6+ Ke7 Rc6 Na6 b8N e1Q b7 Be6 Nd7 Nh6 g8R Qc7 b8Q Qeg3 Qb7 Qgd6 Rg7 Rg8 Nb6 Kf6 h8Q Ra7 Rb1 a1N Nc8 Be7 f8N Nf5+ Kc3 Nb3 Qh3 Bf7 Ne6 Bd8 Ba3 Nc1 Bb4 Be7 Ba5 Bf8 Rg3 Rg5 Nd4 Bg8 Nb5 Bg7 Qdg4 Bh6 Qc4 Bf8 Ne2 g1N Qa2 Bh6 Re3 Rg2 Re7 Bf4 Rg7 Bg3 Rb4 Ra8 Re4 Rb8 Ne7 Re8 Nc8 Re5 Re3 Nh6 Kd4 Rg5 Qd7 Nh3 Ng1 Nf4 Re2 Nb8 Qg4 Na6 Qh3 Nf5+
1nN2b2/1Kn5/1bQr1B1k/6q1/N4p2/B1PB2Qp/Nr1nqN2/R3nQ1b w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 h4 h5 gxh5 g6 h6 g5 b4 Bc5 h5 Be7 Ra3 Bc5 Rah3 Bf8 Rh4 gxh4 Kf2 a5 Kf3 d5 e4 f5 h7 Kf7 b6 Kg7 b7 a4 e5 a3 e6 a2 h6+ Kg6 e7 a1B e8Q+ Kg5 b5 d3 b6 d2 Ba3 d4 Nc3 d3 Qc6 Nf6 Na4 Bd4 c3 Ra6 Nh3+ Kh5 Qe1 d1N Nf2 d2 Bd3 h3 Qf1 Nb2 Rg1 Rg8 h8B Ne8 h7 Nc7 Bf6 Kh6 h8N Rg2 Ng6 Be3 Ne7 d1Q+ Qe2 Qc2 Ra1 Be6 Nc8 Bd5+ Be4 Nd3 Qf1 Nd7 b8Q Qe7 b7 Bb6 Qa7 Nb8 Qa8 Qg7 Qd6 Qg5 Qc6 Nd7 b8N Qa2 Qd6 Qb2 Nc6 Nb8 Nb4 Qa2 Nd1 Rb2 Qac6 Qc4 Nf2 Qa2 Nc2 Ne1+ Ke2 Rb3 Qh1 Ba5 Nd1 f3+ Kf2 Qg8 Ke3 f2 Kd4 f1N Kc5 Rb4 Nf2 Qg1 Qa8 Qg8 Bd3 Qg5 Qg1 Rbb6 Nb4 Qe2 Na2 Nd2 Qf1 Bh1 Qf3 Rb2 Qg3 Bg7 Qd5 Rd6 Qb7 Bf8 Qc6 Bb4+ Kb6 f4 Kb7 Ba5+ Bb5 Bb6 Ba6 Qeg4 Bd3 Qe2
QN2KnN1/2R5/q7/3b1q2/3kpRNr/Qn1pbrPQ/1Rnq4/2q1BR2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 h5 g3 g5 Ra3 gxf4 Ra1 h4 Bg2 h3 Qe2 hxg2 Qd3 Bh6 Qd1 Bf8 Kf2 Kf7 Kf3 Kf6 Ke4 a5 Kd5 e5 b4 d6 c4 d3 h4 d2 c5 f3 c6 a4 h5 e4 c7 f2 h6 f1N h7 a3 b6 a2 b7 Be7 b5 Na6 Kc6 Ke5 b8N d5 b6 d4 b7 d3 f6 Qd4 f7 Bf5 c8R Be6 f8R Qb4 Nh3 g1Q Nf2 Nc5 Rc7 Kd4 Qa4 d1Q Rf4 Bg5 Ng4 Ne3 Qa3 Qdf1 Rh2 Nb3 Bd2 Nf6 Be1 Nc2 Nc3 Nd7 Nd5 Nf8 Ne7 Qd2 Ng8 Bd5+ Kd6 Bh6 Ke7 Ra7 Rd1 a1Q Ke8 Ra6 Rhf2 Rf6 Rb1 Qh3 Rf1 Qge3 Rb2 Qac1 Ne5 Qf5 Ng4 Qef2 Na6 Qa5 b8Q Qfd2 Qa8 Bg5 Nb8 Qa6 R4f2 Be3 Rf4 Rh6 Ne7 Rg8 h8Q+ Rf6 Qh7 Rh8 Qh3 Rh4 Ng8 Qh7 Rf5 Rf7 Re5 Rf2 Rf5 Rf3 Rf4 Qf5
3bkNK1/2B5/2r1nR2/1n2Q1Q1/p1R2b1q/qRr1q3/bB3QpP/2Q1B2b w - - 0 1 legal: proof: g4 g5 a4 h5 f4 d5 c4 b5 axb5 gxf4 Bg2 e6 g5 e5 Bf3 Bh3 cxd5 Bc8 Na3 e4 Nc2 exf3 Ne3 Bb4 Ng4 hxg4 Qa4 Ba3 Qd1 Bf8 Kf2 f5 d4 a5 b4 c5 e4 c4 g6 c3 g7 c2 e5 a4 b6 Bd7 b5 Bd6 b7 Be6 b6 Nh6 g8Q+ Ke7 Bb2 c1B Ne2 Bf7 e6 Ra5 Qg5+ Ke8 e7 Rb5 Rf1 Bc7 d6 Nd7 b8R Rb3 d5 Nc5 b7 Rc3 Nd4 Ne6 Qh4 Bd2 Qc1 Rg8 Rc8 Rg6 b8B Bb6 Rc4 g3+ Kg1 f2+ Kg2 f3+ Kh3 f4 Ra3 Ba5 Bc7 Nf5 Rb3 Rf6 Kg4 Bb6 Nc6 Nfd4 Nb8 Nb5 Nd7 Rh6 Kf5 Bg8 Rd1 f1B Nf8 Bg2 Rf1 f2 Ke5 f3 d7+ Kf7 d6 Bf4+ Kf5 Bh1 Qg5 Qe8 d8Q g2 d7 Rg6 Qb8 Rh6 d8B Ba5 Re1 f1Q Qa7 Qf2 Rf1 Qh4 Qf2 Bb6 Bd6 Ba5 B8c7 Rg6 Bb4 Bb6 Bcd6 Bd8 Bc7 Rh6 Qfd2 f2 Qdc2 Re3 Be1 Rc3 Q2d2 Qc6 Qd4 Qd6 Qb6 Ke8 Qd4 Rh7 Kg6 Qa3 Qdf6 Rf7 Qfe5 Rf5 Qd4 Rc5 Qdf6 Ned4 Kg7 Bd5 Qb6 Ne6+ Kg8 Rc6 Rg1 f1Q Qf2 Qe2 Rf1 Be5 Qd4 Qb4 Rf6 Qa3 Qf2 Qe3 Re4 Bf4 Rbb4 Ba2 Rb3 Nc5 Rb4 Ne4 Rc4 Nc5 Ng6 Kd7 e8Q+ Kc8 Qe4 Kd7 Qee5 Ne6 Nf8+ Ke8
3QnR1K/Bk1n4/5P2/1bqrrB1Q/Q4Q1r/r1p3RB/3bpb1N/5qR1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f5 Na3 fxe4 Nc2 Nh6 axb5 Nc6 b6 Nb8 b5 Ng8 Nb4 axb4 Ke2 Kd7 Ke3 c5 Kf4 h5 Kg5 e5+ Kg6 c4 g4 e3 f4 e4 d4 b3 d6 c3 f5 b2 d5 b1R b7 h3 b6 h4 f6 e2 g5 e1B Be3 h2 Qh5 h3 Nf3 Bf2 Rg1 h1R Nh2 Rd1 Rg3 Qe7 Bg2 Rd2 Rg1 Nh6 Bf1 Kd8 d7 Qc5 Bd3 Bd6 Kg7 Nf7 g6 Re8 Kh7 Rd1 g7 Bf4 g8B Nd6 Kh8 Re5 Be6 Ra3 Bf5 Bh6 Bf1 Ne8 Bd4 e3 Bg2 Nc6 b8Q e2 b7 Bd2 Qa8 Kc7 d8R Nb8 Qa4 Bd7 d6+ Kb6 Bf1 Bb5 Be3 Nd7 b8Q+ Kc6 Bd4 Qb4 Ba7 Qc5 Nf3 h2 B1h3 Nc7 Rf8 Ne8 Qd8 Kb7 Qda5 Bde1 Qf4 Rdd5 Qaa4 Bd2 R1g2 Rha1 Rg1 h1Q Nh2 Rb1 Bd3 Rb4 Bdf5 Nb6 d7 Qg2 d8Q Qf1 Qff3 Rh4 Qff4 Nd7
N1Q3q1/2bK1nB1/r1P1QN2/pq2Qr2/4R2n/2NBBpQ1/4nr2/b2nk3 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 b4 f5 Bh6 Bb7 Ra6 Be4 Bc1 h5 Rg6 f4 Rg5 Bf5 gxf5 Bd6 Rg2 Bf8 Rg4 hxg4 Kf2 Ke7 h4 Kd6 c4 Ke5 e4 a5 f6 g5 b6 d5 c5 d3 b5 Kd4 b7 d2 f7 Qc8 h5 Ra6 h6 Ne7 h7 Bg7 f8B Nbc6 b8Q Nf5 e5 Nd8 e6 Nf7 c6 Nh4 Na3 Kc3 b6 d4 b7 d3 Qe2 d1R e7 d2 e8N Be5 Bh6 Rf8 Nc4 Bc7 Qe6 Re1 h8Q+ Re5 Nf6 Rf5 Bd3 d1N+ Ke1 f2+ Ke2 g3 Bg7 g2 Nb6 g4 Na8 g3 Be3 Qd8 Qbc8 Qd5 b8Q f1N Nf3 g1B Ng5 g2 Rh3 Qb5 Nge4+ Kb2 Nc3 Ng3+ Kd2 Ne2 Rh1 Bh2 Re1 g1Q Qh5 Qg6 Qg5 Be5 Qg3 Qh7 Qbd6 Qg8 Qd4 Bc7 Qde5 Bg1 Bc4 Bh2 Kd3 Bg1 Ke4 Kc2 Bd2 Bd4 Be3 Qb8 Kd5 Qb7 Bg1 Kd2 Bd3 Qb6 Qee8 Qb5+ Ke6 f3 Qe7 Rd8 Bf2 Rd5 Bg1 Rc5 Kd7 Rc4 Q5e6 Rb4 Q7d6 Rb2 Qde5 Ra2 Na4 Ba1 Nc3 Nc1 Re4 Ne2 Qg2 Ke1 Be3 Nf4 Qg6 Rf2 Qg3 Ne2
N3nbk1/r3r3/p1P4r/1qQ1Nb2/K7/Rp2qB2/RQn1q2Q/qR2NR2 w - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 gxh5 Qb6 Nh3 Qc7 Ng1 Qd8 a4 b6 a5 bxa5 b4 Qc7 b5 Qb6 Ba3 Qd8 Bb4 axb4 Kd2 Kf7 h4 d5 f4 e5 c4 g5 Kc2 a6 Kb3 d3 h6 d2 h7 g4 h5 d4 f6 e4 c5 g3 f5 d3 c6 g2 b6 e3 b7 e2 h6 e1Q Ka4 b3 Qc1 d1R Be2 d2 Qb2 Bc5 Nf3 g1Q Nc3 Qef2 Nd5 Qg7 Nc7 Be7 Ne1 Rb1 Ra3 d1Q Bf3 Nd7 b8Q Ra7 Na8 Nf8 Qh2 Ne6 Rg1 Kf8 f7 Qde2 Rh1 Nf6 Rf1 Rg8 h8R Qdb6 h7 Ne8 Rh1 Qc3 Rf1 Kg7 f8N Nd4 Ng6 Nc2 Ne5 Qfe3 f6+ Kf8 f7 Bf5 Nc4 Rd1 Ne5 Kg7 f8R Rdd7 Rf6 Rdc7 Rd6 Bf8 Rd1 Qb7 Rb1 Re7 Qc1 Qa1 Qb2 Qbb6 Qd4 Kf6 Qc5 Rg6 Rg8 Rh6 h8Q+ Ke6 Rg2 Qb7 Ng4 Kf7 Qb2 Q2d3 Rd2 Kg8 Ne5 Qde2 Qbd4 Nb4 Rda2 Nc2 Qb2 Qbb5+
7n/1P2bR2/R1NQ2qb/1prb1Q2/q2B1Br1/nQp3Rq/6BQ/k2b2K1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 Kf7 a4 Ke8 a5 Kd7 a6 bxa6 Qf3 Ke8 Qg4 Nh6 Qd1 Ng8 b5 Bh6 b6 Bg7 Na3 Bf8 Nb5 axb5 g4 Kd7 d4 Kd6 f4 e5 Kf2 a5 b7 c5 f6 h5 f5 a4 f7 h3 g5 a3 f6 h4 g6 h2 g7 a2 Qg4 e4 Kg2 e3 Qf3 e2 Qe4 e1B Bg5 c4 Bh6 c3 Bd2 h3+ Kf3 Na6 Qh4 Nb4 Ne2 Nc2 Rg1 h1Q+ Bg2 Ne7 g8Q Bh6 f8R h2 f7 Qb6 Qh5 Ra4 Bf4+ Kd7 d6 Kc6 d7 Ng6 d8B Bh4 d5+ Kc5 d6+ Kb4 d7 Kb3 Bdc7 Kb2 d8Q Be7 Qd6 Na3 Nd4 Bg4+ Kf2 Bd1 Be5 Qa6 Nc6 Rg4 Bd4 Rh7 Qf5 Nh8 Qde5 Qa4 Qe2+ Qc2 Bf4 Rhg7 Kf1 R7g5 Qee5 Qe4 Qd6 Qe6 Qgh7 Qg6 Qfe6 Kc2 Qb3+ Kd3 Bf3 Nb1 Re8 Bhf8 Qh5 Rc5 Bd5 Bh6 f8Q Qf3+ Bf2 h1B Qh2 Qg3 Bd4 Qh3+ Kf2 Bhf3 Qf7 Bh1 Rf8 Be4 Rg3+ Bef3 Qa3 Kc2 Qf5+ Be4 Qa4+ Kb2 Rf7 Bg2 Bc4 Bd5 Bf1 Nd2 Bg2 Nc4 Rc1 a1Q Kg1 Qa2 Ra1 Qb3 Ra3 Qa2 Qb3+ Ka1 Ra7 Qa4 Ra6 Na3
b4q1n/qp1k2N1/4r3/N1QK4/R3Q3/1bqN2p1/BP2QRr1/n1rR2qQ w - - 0 1 illegal: Other
bb5k/p3Q3/nQ1r1RQ1/4p1n1/2NB4/B2N1Nr1/b3q2P/Bq1QKbn1 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 f4 h6 b4 Nc6 g4 Nb8 f5 Bb7 Be2 Ba6 Ra3 Bc8 Rf3 h5 Rf4 gxf4 g5 Qc7 Bf3 Qd8 Bg4 hxg4 c4 Kf7 b6 e5 b7 d5 g6+ Ke8 c5 d3 g7 Kf7 b5 g3 b6 d4 c6 g2 c7 f3 Nd2 Rh3 Bb2 Rg3 Nc4 Nh6 Ba1 Be6 c8Q Kg8 Qd7 Nf7 Qe7 Na6 b8Q Ng5 b7 Qb6 f7+ Kh7 f6 Qb1 Qbd6 Rd8 Qb6 Rd6 b8N Bd5 Nd7 Ba8 Nc5 f2+ Kd2 f1B Nf3 g1N g8Q+ Kh6 Ke1 d2+ Kf2 Bd5 Nd3 Ba8 Qc2 d1B Ke1 Bde2+ Qc1 Bd1 Qd2 Bb3+ Qd1 Bg7 f8B Ba2 Qgf7 Kh7 Qg6+ Kh8 f7 Bf6 Bh6 Bg7 f8B Bf6 Qe6 Bd8 Qd7 Bc7 Qe7 Nf7 Bc1 Bb8 Ba3 Ng5 Bh6 Ne4 Be3 Ng5 Nc5 d3 Bed4 d2+ Kf2 Ne2 Nd3 Bh3 Re1 Ng1 Re4 Bf1 Rf4 Rh3 Rf6 Rg3 Qe1 d1Q Qe2 Qdb3 Qd1 Q3c2+ Ke1 Qe2#
n2RRN2/2q1N2r/3nQN2/6p1/1q2n1Q1/1rpnQBP1/b4N2/nkrR2K1 w - - 0 1 legal: proof: b4 a5 f4 b5 a4 e5 h4 exf4 c4 d5 h5 dxc4 h6 g6 Bb2 Bg7 hxg7 Qg5 Bc3 Nf6 axb5 Ng8 b6 Qe7 b5 Qd8 Bb4 axb4 Kf2 Kd7 d4 Kd6 e4 c5 b7 h5 e5+ Kd5 b6 Ke4 g3 f5 e6 c3 e7 g5 e8Q+ Be6 d5 f3 d6 f4 d7 h4 Ra7 c4 Na3 c2 Rh2 c1N Qd2 h3 Ra6 b3 Nc2 b2 Nd4 b1Q Qb2 c3 Rg2 h2 Qb4 h1N+ Ke1 f2+ Kd1 f3 Nh3 Nf6 g8Q Rh7 Rg1 Qc7 d8R Nbd7 Bg2 Kd3 b8N f1N Ke1 Nd2 b7 Nfe4 Nf5 Kc2 Ne7 Nc4 Kf1 f2 Bf3 Ndb6 Nd7 Ncd6 b8N Ba2 Nf8 Nb3+ Kg2 f1R Qe6 Re1 Nbd7 Rc1 Nf2 Rb8 Ra8 Na1 Nf6 Qb2 Rf1 Kb1 Rd1 Qb3 Qd4 Qb4 Kg1 Rb7 Rab8 Na8 Qe3 Rb6 Qh5 Rb7 Qhg4 Rb5 Nh3 Nhf2 Rbc8 Nd3 Nf2 Qbc4 Re8 Rb3 Rcd8 Qb4
Q1N1n2k/3q1q2/q2Qbr1B/1p5q/3b1Pp1/N3R1B1/q2b1rQ1/1N1K1BB1 w - - 0 1 legal: proof: f4 d5 e4 dxe4 c4 a5 b4 axb4 g4 f5 gxf5 h5 a4 Nd7 Ra3 Ndf6 Rg3 Nd5 Rg4 hxg4 cxd5 Ra6 Qf3 Ra5 Qd1 Ra8 h4 Kf7 d4 e5 a5 g5 d6 Kg7 a6 c5 h5 b5 d7 e3 d5 b3 a7 e2 d6 b2 Rh3 e4 Na3 b1Q Qd2 g3 Qd3 g4 Qf3 c4 Qc3+ Nf6 Kd2 e1B+ Kd1 e3 Ne2 g2 Qc2 g1Q Nc3 Rh6 Qg2 Qa2 Ncb1 Ne8 f6+ Kh8 f7 Bg7 f8B Rf6 h6 c3 h7 Bd2 Rf3 Qe7 d8Q Be6 d7 Qh2 Qc7 Qh5 d8B Qef7 Qd6 Rc8 a8N Rc7 Nb6 c2+ Ke2 Re7 Nc8 Rd7 Bb2 c1Q Bd4 Qc6 Kd1 Qa6 Ba5 Rc7 Bdb6 Rc2 Rh3 Bc1 Be1 Rf2 Bd4 Bd2 Rf3 Re2 Bg3 Rf2 Bb6 Rg6 Ba7 Bd4 Bh6 Rf6 Bb6 Be1 Kc1 e2 Re3 Qa1 Bc5 Bd2+ Kc2 e1Q Ba7 Qe2 Bb6 Qc4+ Kd1 Qaa7 Rf3 Qh3 Bg5 Be5 Qg1 Rh2 Nc2 Q1a6 Nca3 Qad7 Bbf2 Qa2 Re3 Bb2 Qh1 Rg2 Bg1 Rf2 Qa8 Kg7 h8Q+ Kg6 Qh4 Kg7 Bh6+ Kh8 Qg5 Qh4 Qgd5 Bd4 Qg2 Qhh5
2QB4/2R1B3/rbB1N1nQ/PppN1NnK/r7/1r3rq1/N1Qq2r1/k6n w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 a4 h5 Ra2 f5 Rc2 Be6 Rc6 Bd7 Rg6 f4 Rg5 Bf5 gxf5 Ra5 Rg6 Ra8 Rg4 hxg4 Kf2 Ke7 h4 Kd6 d4 g5 e4 b5 a5 b3 h5 b2 f6 Nh6 f7 Ra6 Nc3 b1R Bg2 Nc6 Na2 Rb3 Nh3 Ne5 Qc2 Ng6 Rf1 Bg7 f8N Nf7 h6 c5 h7 Be5 Ne6 g3+ Ke1 f2+ Ke2 Rg8 h8Q g4 Qh6 Ng5 Rh1 f1N Ng7 Kd7 d6 Kc6 d7 Bc7 Nf5 Bb6 Bf3 g2 e5+ Ne4 e6 Kd5 e7 g1R e8N g3 Neg7 g2 Ne6 Qg5 d8B Rf8 Qb1 Kc4 d5 Qg3 d6 Ng5 Bc6 f3+ Kd1 f2 Ke2 Qh2 d7 Rf6 Nhf4 Ng3+ Kd2 f1R Nd5 Rff3 Qc2+ Rfc3 Be7 Rb4 d8Q Ra4 Qc8 Rf8 Qd3+ Kb3 Ke3 Rf6 Bd2 Kb2 Kf2 Rf7 Qc2+ Ka1 Bf4 Rb3 Bc7 Qh5 Bcd8 Qd1 Rh4 Qc1 Re4 Nh1+ Ke2 Nh7 Re3 Qd2+ Kf3 Rf8 Qe4 Ng5+ Kg4 Rf6 Kh5 Rf7 Qc2 Rf6 Ng3 Rf3 Rd3 Rd1 Re3 g1Q Nf5 Qg3 Rd3 Rg1 Rd4 Rg2 Rf4 Ne5 Rg4 Ne4 Rg7 Ng6 Bh4 Nf8 Rc7 Ng6 Bhe7 Ng5
Br1RqR2/q3n2R/Q4r2/5n2/p2b2Pr/k2pB2n/Nq5R/B1QKQ1n1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Nd2 Bh6 Ndf3 gxf3 g4 Bb7 h3 Bd5 g5 Be6 Bg2 Bg7 Bf1 Bg4 hxg4 Bf8 e4 Ke7 c4 Kd6 b4 a5 g6 f5 g7 h5 b6 d3 b7 h4 b5 Kc5 b6 Kb4 e5 d5 e6 f2+ Kd2 a4 e7 d4 e8R h3 c5 h2 c6 f3 c7 f4 c8R Rh4 Rc2 Nh6 g8Q Nf5 Re3 Qe8 Re7 Nc6 b8Q Bg7 Rb7 Nce7 Bh3 f1Q Bg2 f2 Qe6 f3 Qbe5 Rb8 Ne2 Qg1 Rd7 f1Q b7 f2 Qa6 Kb3 Be4 Qfg2 Rd8 f1R Qe1 Bf6 Kd1 d2 Nc3 Qe3 Bc6 Rf2 Rf1 h1N Qc7 Nhg3 Na2 Ne2 Bb2 Qh2 Rb1 Ng1 Ba1+ Ka3 Rb6 Ra8 b8B Bg7 Ba7 Rb8 Ba8 Qhe5 Nc3 Q5b5 Qc6 Qb2 Na2 Ng3 Qcc8 Rf8 Rh6 Rf7 Rff6 Ngf5 Rh7 Qf2 Rg6 Be5 Rg8 Rf6 Qcc6 Qb7 Bb6 Qa7 Rf8 Qg2 Rb2 Qe2+ Kc2 d1N+ Kc1 d3 Be3 Bd4 Qc2 Qg2 Qcc8 Qgb7 Rh2 Nf2 Kd2 Nfh3 Kd1 Qb4 Qc1+ Qb2
2Nq2QK/q1B2n2/3p1br1/R1QN2Q1/4q1NR/2b1p1P1/1Nb5/1kb2Rnn w - - 0 1 illegal: No possible last move
2nB1k1n/BQN2r2/2P1BR2/Q2r2qp/1N3rpn/1K1Q2N1/2b1q1q1/1Nr5 w - - 0 1 illegal: No possible last move, all moves rejected
5nN1/2P2bkB/qQN1r3/B3rB2/1BR1Nr1r/3nn3/p6p/qQK1Q2q w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 a4 b5 axb5 e5 f4 gxf4 b4 Nh6 g5 Ng8 Ra2 Be7 g6 Bg5 Ra3 e4 Rf3 exf3 hxg5 Qf6 Rh3 Qe7 Rh1 Qd8 Kd2 Kf8 e4 a5 c4 h5 c5 f5 e5 d5 e6 f2 e7+ Kg7 e8B f3 b6 d3 c6 f4 b7 h4 c7 h3 b5 h2 b6 a4 Qb3 a3 Bf7 d4 Bb2 a2 Ne2 Rh4 Qe6 Qd6 Nbc3 Nc6 b8Q Nb4 b7 Ne7 Ne4 Qa6 Bh3 f1Q Qb6 f2 Ba3 f3 Bg8 Be6 Bf5 Bf7 Bh7 Qa1 Rc1 f1R Rc4 f2 Qe8 Rb1 b8B f1R Ba7 Rbe1 Qeb5 Re8 Q5a5 Nbc6 Bb4 Rff4 Qab5 Ne5 Ba5 Ref1 Qb1 R1f3 Kd1 d2 Kc2 d1N Kc1 d3 Nd4 Re3 Nc6 Nd7 Bb4 Nd5 Ba5 Re5 Bb4 Nb2 Ba5 Kf8 g7+ Ke8 g8N Kf8 g6 d2+ Kc2 Nd3 g7+ Ke8 Qe1 Nf8 Qbb1 Re6 Bc5 Re5 Bcb4 Re6 Kb3 d1Q+ Ka3 Qf3 Kb3 Qh1 Kc2 Nc5 Kc1 Re2 Nh6 Ne3 g8Q Re5 Qg6 Re6 Nb8 Re5 Qb6 Ke7 Nd6 Kf6 Nc6 Kg7 Ng8 Ng4 Kd1 Nd3 Ne4 Re6 Nd6 R2e5 Ne4 Ne3+ Kd2 Nc5 Kc1 Nd3+
4bQb1/BQ2n3/p1R2b2/1Q2N3/nbpnB2B/2Nn1B2/N1q1rbP1/k2K4 w - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 g5 axb5 d5 f5 dxc4 b4 a6 h4 Be6 Ra3 Bd7 Rf3 Bc8 Rf4 gxf4 Ke2 Ra7 Kf2 Rb7 Ke1 Rb6 Qc2 Rg6 Qd1 Rg5 hxg5 Qd6 Be2 Qd5 Bf1 Qd8 d4 Kd7 f6 Kd6 b6 Kd5 b5 e5 b7 h5 g6 c5 f7 h4 g7 h3 b6 f3 Bd2 f2+ Ke2 c3 Qe1 Kc4 d5 Kb3 d6 Kb2 d7 h2 Bf4 c2 Qc1+ Ka1 Be3 Be7 f8Q Bf6 Qe1 c1N+ Kd2 Ne7 g8B Na2 Qd1 Nc3 Nh3 Na4 Qh6 Nbc6 b8Q Nd4 b7 Qb6 d8B Bd7 Qe2 Be8 Nf4 Qb2+ Kd1 Rh7 Rg1 h1N Qb5 c4 Be2 f1B Bf3 Bd3 Ne2 Rh8 Bf2 e3 Qf8 Bh7 Re1 e4 Bd5 Bg8 Nec3 Rh5 Bb6 Re5 Na2 Re6 Bh4 Re5 Rf1 e2+ Ke1 Nf2 Ba7 Re6 Qc7 Re5 b8N Re6 Nc6 Re5 Qca5 Re6 Qd2 Re5 Qc2 Nd3+ Kd2 e1B+ Kd1 e3 Qcb3 Bf2 Nbc3 Qa3 Bde4 e2+ Kd2+ e1B+ Kd1 Re6 Ne5 Qb2 Qb7 Bd2 Q3b5 Bde1 Nd5 Bb4 Ndc3 Bd7 Rh1 Be8 Rh3 Bef7 Rg3 Be8 Rg6 Bg3 Bc6 Bg5 Nf7 Re2 Bce4 Bf2 Rc6 Bf6 Ne5 Qc2#
b3b3/n1nq1prn/2N2R2/BNKnQ3/2RQ4/R1R4p/1PQ2n1N/b5bk w - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 a4 c5 axb5 cxd4 f4 exf4 g5 g6 Bh3 f3 Bf5 gxf5 h5 f4 Nd2 Ra6 Nb1 Rg6 hxg6 Bh6 Nd2 Bg7 Nb1 Bf8 Kf2 Ke7 c4 Kd6 e4 Ke5 c5 h5 b6 d5 g7 a4 c6 h4 b7 h3 g6 a3 c7 d3 Qf1 d4 Ra2 d2 Qd3 d1N+ Kf1 f2 Ke2 f1N Qb3 d3+ Kf3 d2 Nc3 Nf2 Qc2 d1N Nb5 Nde3 Bd2 Nd5 Ba5 Nc6 b8N Ngf6 g8Q Nfe3 g7 Bd7 c8R Na7 Rc4 Rh7 Qh8 Bc5 g8R Be8 Rg3 Nc7 Ra1 a2 Nc6+ Ke6 e5 Kd5 e6 Rg7 e7 Qd7 Ke2 Nh7 Nf3 Bb6 Raf1 a1B Nh2 f3+ Kd2 Bc5 Kc3 Bb6 Kb4 Bd4 Qa4 Ke4 Qc2+ Kf4 Rc3 Ned5+ Kc4 Bb6 Rc1 Be3 Rhd1 Bd4 Rdd3 Be3 Rg6 Bd4 Rd6 Kg3 Rf6 Kg2 Ra3 Be3 Rdc3 Bc5 Rd1 Be3 Rd4 Kh1 Re4 Ng4 Rd4 Bg1 Kc5 f2 Rdc4 f1B+ Rd4 Nf2 Rdc4 Nf8 Qh4 Bg2 Qd4 Qd8 Qcd3 Nh7 Qc2 Bd7 e8Q Bf3 Qf8 Be8 Qe7 Qd7 Qee5 Nb6 Nb4 Ba8 Nc6 Nbd5
1BQ2nq1/B3B1bq/3Q1pk1/1N1q2r1/3qP1N1/2p2KNB/n3nQ1n/3R1r2 w - - 0 1 illegal: No possible last move
bq1qNK2/BQ3N1k/1p3P1B/nR1q1n1Q/4r1Q1/nr2Q1n1/N2pq3/3B4 w - - 0 1 legal: proof: f4 a5 d4 f5 a4 h5 b4 axb4 e4 c5 exf5 cxd4 g4 e6 g5 Be7 Ra3 Ra5 Rg3 Ra8 Rg4 Bf6 gxf6 hxg4 Kf2 Kf7 Kg3 g5 h4 d5 c4 d3 c5 d2 h5 b3 a5 e5 a6 d4 c6 b2 a7 d3 c7 e4 h6 e3 h7 e2 Nc3 e1N Be2 b1N Na2 Ne7 Nf3 Na3 Rh5 Re8 h8Q Ng2 Qh7+ Kf8 f7 Ne3 Ne5 Nbc6 Qb3 Qd5 Bd1 Rb8 a8N Na5 Qc4 Bd7 c8Q Bc6 Nc7 Qd8 Bb2 Qd5 Bd4 Nf1+ Kf2 Ng3 Ke3 Qd8 Ba7 Bg2 Qg6 Qd5 Qb6 Kg7 f8B+ Kg8 Bh6 Kh7 f6 Nef5+ Kf2 Re6 Nf7 Re4 Ne8 Bh1 Qe3 Qd8 Bc2 d1Q Qb3 Qb1 Bd1 d2 Qa4 Qb5 Qc6 Qbd5 Qc8 b6 Qb7 Rc8 Qad7 Rc3 Qe6 Ng7 f5 Rb3 Qed7 Nf1 Qa4 g3+ Ke2 g2 Kf3 Ng3 Qad7 Re5+ Kg4 g1Q Bc2 Qdg2 Qbe4 Q1h2 Nh8 Rb4 f7 Qb8 f8Q Rb3 Q4f4 Nf1+ Qfg3 Qga8 Qfc5 Qe2+ Qgf3 Qd8 Nf7 Qab8 Bd1 Re6 f6 Re7 Kh3 g4+ Kh4 g3 Kg5 g2 Qfg4 g1Q Qcb5 Ba8 Qb7 Qgg2 Q5d5 Kg8 Kg6 Ng3 Qdg5 Re5 Q5h4 Re7 Rb5 Qgd5 Qhh5 Re6 Ne5 Kh8 Kf7 Kh7 Kf8 Re7 Nf7 N7f5 Qgh4 Re6 Q4g4 Re4
rr2K1Q1/1qn2pR1/1qBq2bk/4NQ2/PbQ4B/5N1p/p6Q/n2bBN2 w - - 0 1 illegal: No possible last move
1Nk4N/br2pPb1/1Qp1Kn2/q2QR3/N1q3Bn/1N1r4/p3b1RR/2Qr4 w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 f5 e4 fxe4 b3 Be6 Bb2 Bc8 Be5 b6 a4 b5 h4 gxh4 Bg3 hxg3 axb5 Bf5 Qf3 Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 a5 Kd4 h5 Ke5 g2 f4 c6 d4 e3 d6 e2 g5 e1Q+ Ne2 g1B f5 a4 g6 a3 d5 h4 f6 a2 b6 h3 b7 h2 g7 Rh7 b4 Ra3 b5 Ra8 b6 Qe8 Nd2 Na6 b8N+ Kd8 d7 Bc5 b7 Kc7 d8N Bf5 Bh3 Qf1 Qc1 Bg4 Nf7 Qd8 Nh8 Nh6 g8R Ra7 f7 Nf5 Nb3 Bg7+ Ke6 Nb4 Nc3 Qc4 Na4 Be2 Bg4 Nh4 Re1 h1R Rb1 Ng2 Rb2 R7h3 Rd2 Rd3 Rb2 Bd1 Re5 Nh4 Rf2 Be2 Rh2 Bh6 Rgg5 Bg7 Rg6 Rhd1 Rgg5 Qb5 Rg6 Qa5 Rgg5 Qg8 d6+ Kd8 d7 Nd5 Bf5 Kc7 Rgg2 Nf6 Bg4 Qc8 Na6+ Kd8 b8Q Rb7 Qd6 Qa8 Nb8 Q8a6 Qd5 Ba7 Bh3 Kc7 Bg4 Rb6 d8Q+ Kb7 Qe8 Qc4 Qd8 Rb4 Qb6+ Kc8 Qd4 Rb7 Qg1 Qca6 Qb6 Qc4
b1q2bN1/n1pn1NP1/5Rr1/2BQ3q/6pQ/6pb/3RNnQR/k3rRK1 w - - 0 1 legal: proof: d4 b5 c4 d5 g4 dxc4 a4 f5 axb5 fxg4 Bg2 e6 Bh3 Ne7 Bf1 Ng8 h4 g5 d5 g3 d6 g4 Bg2 Qf6 Bd5 Qg5 hxg5 exd5 Kf1 Kd7 f4 Ke6 b4 a5 e4 h5 d7 h4 d8N+ Kd6 b6 d4 b7 c3 b5 Kc5 b6 Kb4 e5 a4 g6 h3 f5 d3 f6 h2 e6 d2 e7 a3 e8Q a2 f7 c2 g7 Kb3 Qc6 Nd7 b8Q Ne7 b7 Ra6 Qg2 Nc6 Nc3 Na7 Nge2 Rg6 Ba3 Rh3 Bd6 Kb2 Ne4 c1Q Nf6 Qc5 Ng8 Qh5 Bc5 Rh4 Rc1 a1Q Qa8 Rh3 b8R+ Bb7 Rc8 Bf3 Qd5 Qa6 Qg5 Qe6 Qh4 Ba8 Rb8+ Ka2 Rb3 Qa6 Rd3 Qc8 Rd6 Kb2 Rf6 Ka2 Rc3 Kb2 Rd3 Ka2 Qb3+ Ka1 Qbd5 d1N Rd4 Nf2 Rd2 Be7 f8R Bd6 Rg1 h1B Re8 Bf8 Nf7 Qb7 Rb8 Qc8 Rbb2 Rh2 Qge4 Bf3 Rh1 Bg2+ Kg1 Bh3 Qg2 Nd1 Qgf3 Rf2 Qg2 Rf4 Rh2 Re4 Rb3 Nf2 Rbf3 Nd1 Rf1 Re8 Nc3 Re1 Ne2 Nf2
N2n3N/5b2/4RK2/N1prp1Rq/Qr1kb1r1/r2B1p2/Q1RNP3/2n3nQ w - - 0 1 legal: proof: g4 b5 c4 g5 f4 gxf4 a4 d5 h4 dxc4 b4 a5 g5 Ba6 g6 Bh6 Ba3 Bg5 hxg5 Bb7 axb5 Bf3 b6 Bb7 b5 Bc8 Bb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g7 f5 g6 c3 d4+ Kc4 d5 c5 b7 c2 b6 c1N d6 h4 d7 f3 Ra6 b3 Bg2 f2 Nf3 f1R Nc3 f4 Na4 Nh6 g8R h3 g7 Qe8 d8N h2 Nf7 b2 Qe1 e6 Kf6 b1R Nd2+ Kd4 Be4 e5 Bd3 Nc6 b8Q Rb4 b7 Be6 Nb6 Rg1 Qa7 Nd8 b8N Nf5 Qd7+ Bd5 Qa4 Rg4 Qf1 Rh3 Nh8 Bf7 Qe1 Ra7 Na8 Nh4 Re6 Rd7 Qf1 Nf3 Nc6+ Ke3 Qg2 Rd5 Na5 Kd4 Rf1 Ng1 Qh1 Na2 Rb1 Nc1 Rb2 Rhg3 Rc2 Re3 Qg2 h1B Qh2 Be4 Qh1 f3 Rf8 Bh5 g8Q Bhg6 Qf7 Bh5 Rg8 Bhg6 Qa7 Bh5 Rg5 Bf7 Ba6 Ra3 Bd3 Qg8 Qa6 Qh7 Qa7 Qh4 Qa6 Qh5 Qc4+ Ke3 Qa2 Kd4
Q2Bn2q/1Bq5/4pn1N/p2Q1r1N/4NN2/b2n3Q/p1PB3R/k2rb1nK w - - 0 1 legal: proof: f4 c5 e4 f5 exf5 h5 a4 b5 d4 bxa4 g4 cxd4 b4 Nf6 g5 Ng8 f6 Nh6 f5 Ng8 Ra3 Ba6 Rg3 Be2 Rg4 hxg4 Qd2 Qc7 Qd1 Kd8 Bd2 Bc4 Bc1 Bf7 g6 Kc8 gxf7 Kb7 Nd2 Kc6 Nb1 Qd8 Kf2 Kd5 Kg2 a5 h4 g5 b5 d3 h5 Kc4 h6 d5 b6 a3 b7 e6 h7 g3 Ne2 g4 Qe1 d2 Rh3 d1N Nbc3 d4 Qd2 a2 Ne4 d3 Qg5 d2 Rh2 Nb2 Nf4+ Nd3 Nh5 d1Q Kh1 Ba3 f8B Na6 b8Q Nc7 f7 Nf6 Bd2 Qa1 Be7 Rf8 h8N Nce8 Qb3+ Kd4 Qh6 Qc7 Bd8 Ra6 Qg5 Rd6 Qh4 Rd7 Qh3 Qac3 Bg2 Qb2 Bf3 g2+ Kg1 Rg8 f8Q Rg5 Nf7 Rd6 Rh1 Qa1+ Kh2 g1N Nh6 g3+ Kg2 Rd5 Rh2 Rd7 Kh1 Rd6 Rf2 g2+ Kh2 Nb2 Bc1 Nd7 f6 Rf5 f7 Ra6+ Neg3 Ng7 Bdg5 Rd6 Qa8 Ne8 f8N Rdd5 Qbb7 Kc3 Ng6 Rd1 Ngf4 Nd3 Bd8 Qb2 Qe4 Qa1 Bd2+ Kb2 Qe5+ Kb1 Qd6 Qh8 Bb7 Ka1 Qd5 Ndf6 Ne4 Ne2 Rf1 g1B+ Kh1 Bf2 Rg1 Be1 Rg2 Ng1 Re2 Qf8 Rh2 Qh8
3R1Bqk/2N4P/Nr2Q3/1rn2q2/BB1b3p/p1p1bq2/Kn1q1NQ1/2B4Q w - - 0 1 illegal: No proof kernel
3rR3/1BpN3P/1K1Q2nb/1npQpRr1/4q3/1R3Br1/2Rqr1Q1/k1b3B1 w - - 0 1 illegal: Other
4N1B1/3Rr3/1N2pRKr/2p4r/QQqpP2Q/2nRQr2/2n5/1rn1Nkb1 w - - 0 1 legal: proof: g4 g5 a4 f5 h3 fxg4 Na3 b5 axb5 g3 Bg2 g4 Bf1 g2 Nb1 g3 Nc3 Ba6 Nb1 Bb7 c4 Bf3 c5 Bg4 hxg4 Bh6 d4 Bg7 d5 Bf8 d6 Nf6 Be3 cxd6 c6 Ng8 Bc5 dxc5 Kd2 Kf7 Ke3 Kf6 Ke4 Kg5 f4+ Kf6 b4 a5 f5 Kg5 c7 h5 c8Q h4 b6 h3 f6 Kh4 Kf5 d5 e4 d4 f7 h2 b5 a4 g5 a3 b7 a2 g6 Nf6 b6 Nc6 b8Q Nb4 b7 Ra7 g7 Rh6 g8N Nfd5 Nf3+ Kh3 Bc4 g1R Na3 Rf1 Rg1 h1R Qf4 g2 b8Q Qe8 Nf6 Nd3 Qa4 Qb5 Rd1 a1N Ne8 Nc2 Qe3 Nc3 Qd8 Rf2 Rgf1 g1R Bb3 Kg2 Nc4 Bg7 f8R Be5 Rf7 Bh2 Qb7 Qa6 Qbb4 Rb7 Nb6 Rd7 Be6 Qc4 Rh7 Rc7 Bg8 e6+ Kg5 Ra7 Rd7 Rb7 Rd5 Rf7 Rd7 Rfh7 Qf6 Re7 Rfe1 Rgf1 Re2 Bg1 Ree1 Rhh7 Kg6 R1h5 Qh4 Rh8 Re2 Re1 Rdd2 Rb1 Ne1+ Kf1 Rd1 Nc1 Rd3 Rf8 Rg2 R8h7 Rg4 Rf3 Rf4 Rh8 Rf6 R8h6+
3k3B/bB3qBp/N7/b3BQnb/RrNN1Q2/2p1p1Q1/b1P4K/b1r1r3 w - - 0 1 legal: proof: b4 a5 h4 g5 e4 d5 g4 dxe4 a4 f5 b5 b6 Ra3 Na6 Rb3 Nc5 Rb4 axb4 a5 Ne6 axb6 fxg4 Rh3 g3 Rh2 g4 Rh1 Ng5 hxg5 Qd4 Qe2 Qd5 Qd1 Qd8 d4 c5 f4 e5 g6 b3 f5 e3 g7 c4 b7 e2 b8B b2 f6 g2 Kf2 e1R Kg3 c3 b6 e4 b7 Be7 d5 Bf5 d6 Ra3 Qd5 Nh6 Ne2 g1B Nd4 Qd7 f7+ Kd8 Nd2 b1B Rh4 Ra1 Nc4 Ba2 Bg2 Bg6 Qf5 Bh5 g8Q+ Bf8 Bf4 Rac1 Be5 Be3 Kh2 g3+ Kh3 Qe8 d7 Ba3 f8B Bb2 Bfg7 Ba1 Ba7 Bf4 b8N Nf7 Na6 Bg5 Bf3 g2 Kh2 Bf6 Qf4 Ng5 Qf8 Be7 Q8f5 Bb4 Bab8 Qe6 Bef6+ Qe7 Bbe5 Ba5 Rg4 Rg8 Bh8 Rg6 Bfg7 Rb6 Qg3 Rb4 Qgf4 e3 Bb7 g1B+ Kg3 Bf2+ Kh2 Bh4 Qg3 Bb6 Re4 Ba7 Rg4 Qf6 Qff4 Ke7 d8Q+ Kf7 Nb3 Nh3 Qh6 Rb6 Qd3 Ke8 Qf5 Qf7 Nb2 Bd8 Ra4 Rb4 Nc4 Ba5 Qhf4 Ng5 Nd4 Kd8
2b2n1n/Nn4K1/k2r3R/1NqQ3p/3n3N/B1qBPp1r/3Q1r1p/1N1BQ3 w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 a4 gxh4 f4 e5 b4 b5 axb5 Qf6 g5 Kd8 g6 Qe6 g7 Qa6 f5 Qg6 f6 Qg5 Ra3 Ke8 Rf3 Bd6 Rf4 exf4 Ba3 Ne7 Bb2 Nd5 Bc1 Bf8 g8B Bg7 fxg7 Qd8 Bh3 Nf6 Bg2 Nh5 Bf1 Nf6 Kd2 d5 Kd3 Kd7 c4 Kc7 e3 Kb7 c5 a5 b6 a4 c6+ Ka6 c7 a3 b7 a2 Bb2 a1Q Qe1 f3 Nd2 f2 Nb1 h3 Nd2 h2 Qd1 Ne8 Qh5 f5 Qe2 f4 Qg4 Qd6 Nb1 Qc5 Ba3 Nd6 Nf3 Nf7 Qg2 Nd7 b8Q Nf8 Nh4 h6 Be2 f1N Bd1 Nd2 Bh7 Nc4 g8Q Ncd6 Qd2 Nb7 Qg1 Ra7 Qa8 Qb2 Qge1 Qbc3+ Ke2 d3+ Kf3 d4 Ke4 Na5 Qd5 Nb7 Bg6 Rh7 Bf5 Nh8 Ke5 Ra8 Kf6 f3 Rg1 Ra7 Rg6 Ra8 Qg2 d2 b5+ Ka5 b6 Ka6 Qg4 d3+ Qgd4 h5 Be4 Rg7 Rh6 Rg3 Bg6 Rh3 Kg7 Bf5 c8N Ra7 Nd6 Bc8 Be2 d1R Nb5 d2 Bgd3 Ra8 Qg3 Rf1 Qe1 Rf2 Bd1 Ra7 Bb3 d1N Ba4 Qc2 Qdc3 Qc1 Qcd2 Nc3 Bac2 Ne2 Bd1 Nd6+ b7 Nd4 Bf1 Q1c3 Bd3 Ra8 b8N+ Ka5 Rg6 Ra6 Rh6 Nb7 Nc6+ Kb6 Nca7+ Ka5 Qe5 Rd6 Qd5 Ka6
1B1b2n1/qBnQ1rN1/1kPN2R1/3Q2Qp/6Q1/3r1r1q/np1N1pn1/K4B2 w - - 0 1 legal: proof: f4 g5 a4 gxf4 g4 a5 d4 e5 dxe5 c5 b4 axb4 g5 b6 h3 Bb7 Ra3 Bf3 Rd3 Bh5 Rd4 Bg4 hxg4 cxd4 Kd2 d5 e4 Kd7 c4 Kc7 Kc2 f5 Kb2 h5 e6 d3 e7 b3 e8Q b5 g6 f3 g7 f2 c5 d2 g5 d4 c6 f4 g6 d3 a5 b4 e5 f3 a6 Qd4+ Nc3 Qa7 e6 Rh7 e7 Kb6 Qe2 d1N+ Ka1 d2 Ne4 Ne3 Qd7 d1R e8N Be7 N4d6 Bd8 Rh4 Ng2 Rg4 Rd3 Bf4 Bg5 Qe4 Bd8 Qd5 b2+ Kb1 Qb7 a7 Na6 Bh2 Rb8 a8B Qa7 Bb7 Rc8 Ka2 b1N Ka1 b3 Qg5 Nc3 Qd5 Ne7 g8Q Na2 g7 Nc7 Rg6 Ra8 Qge6 Ng8 Qg4 Rc8 Ne2 Rb8 Nc3 Rc8 Nb1 Rb8 Be2 f1Q Bf4 Qh1 Bf1 f2 Nd2 Qh3 Bh2 Nh6 g8Q Rf7 Qdg5 Rff3 Q8d5 Ng8 Bc8 Rb7 Ng7 Na6 Qde7 Rd7 Bb7 Nc7 Qe8 Re7 Qed7 Ref7 N6e4 Na8 Bb8 Nc7 Nd6 b2+
1NQR1n2/2qp1RKR/2r1q3/2NNq1p1/1Pnk4/r2pbRB1/Qr4Q1/5q2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kf2 Ke7 c4 Kd6 h4 Ke5 b4 a5 e4 g5 f6 a4 b6 d3 f7 a3 c5 a2 c6 Qc7 b7 Qa5 h5 Qa6 c7 Qa4 c8Q Bd6 f8R Rh6 Qd2 Qa5 Rf7 Qa6 Nc3 Qa3 Na4 Ne7 Ne2 Nbc6 b8N Qc3 Nc5 Na5 Rb1 a1Q Qa2 Qc4 Nc3 Ng6 Nd5 Kd4 e5 Nf8 e6 Be5 e7 Rc6 e8Q g3+ Kg1 f2+ Kg2 f1R Kh3 g2 Kg4 g1Q+ Kf5 f3 h6 f2 h7 Re1 h8R f1Q+ Bf4 Qg3 R1h7 Re2 Rc1 Bd6 Kf6 Rb2 Qe2 Qg4 Qd2 Qe6+ Kg7 Bc7 Rg8 Bb6 Qg2 Qc2 Bh2 Nc4 Bg3 Ra3 Re1 Qc3 Re3 Qae1 Ref3 Q1e5+ R3f6 Qc7 Rf3 Qce1 Rgh8 Q1e5+ R7f6 Ng6 Nb3+ Ke4 Rd8 Be3 Nc5+ Kd4 Qb7 Q5f5 Rf7 Nf8 Qc8 Qfe5+
q7/2Npr2p/1rBkNrpR/4r3/1NKP3q/Q1n5/1Q2nR2/n2QNRb1 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 f5 g4 Qc7 b5 b6 Ba3 Ba6 Bb4 cxb4 a5 Qd6 axb6 Qh6 Bg2 Qxh2 Bh3 Bb7 Bf1 Be4 Ra2 exf4 Ra4 f3 Ra5 f4 Ra1 Bf5 gxf5 Kf7 Ra5 Ke7 Ra1 Ke8 d4 Ke7 Kd2 a5 Kd3 a4 e4 a3 c4 b3 c5 f2 c6 g6 c7 a2 c8R f3 b7 b2 b6 Qh6 f6+ Ke6 e5 Ra5 f7 Bd6 Na3 b1R Bg2 f1N Rc2 f2 Bc6 Na6 b8Q Qh4 b7 Ng3 Kc4 f1R Nf3 Nf6 Rf2 Rb6 Qa8 Nd5 b8Q Nc5 Nc2 Re8 Nfe1 Nb3 Nb4 Ne2 f8N+ Ke7 e6 Ndc3 Qbb7 Re5 Qa3 Bc7 Rhh2 Kd6 e7 Bb8 Rb1 a1Q Ne6 Bc7 Qb2 Qa4 Qa8 Na1 Rh3 Qa7 Rc1 Qb8 Qaa3 Qa8 Rh1 Qg4 Rh6 Qh4 Rh2 Rf6 Rf2 Ref8 Rb1 R8f7 e8N+ Ke7 N8g7 Kd6 Rc1 Bb8 Nc7 Rfe7 Nge6 Rff5 Qd3 Re3 Nca6 Rf6 Nec2 Re4 Rcf1 Re3 Bg2 Bc7 Qd1 Re4 Na2+ Kc6 Ne1 Bh2 N2b4+ Kd6 Nac7 Re5 Bc6 Bg1
1rN4B/2K2Q2/N3N1pq/pQ3Bb1/3P1qnp/B2Rnk1b/1p5Q/3bB2r w - - 0 1 legal: proof: b4 b5 h4 d5 e4 c5 exd5 Bb7 g4 Bc8 g5 cxb4 a4 Bh3 axb5 Bc8 h5 g6 Ra6 gxh5 g6 h4 g7 Nh6 Rf6 Ng8 Rg6 fxg6 Ke2 Kf7 Ke3 Kf6 Kf4 h5 d4 a5 c4 e6 c5 h3 d6 h4 b6 b3 b7 b2 c6 h2 d7 Ra7 c7 Na6 b8Q Ra8 Qe2 Rh7 Nd2 Bb7 c8N Bf3 Qbb5 Be7 Nb3 Qe8 d8B Rb8 Bd2 Nc7 Nc5 Nh6 g8Q Rf7 Na6 Qf8 Bh3 Ng4 Be1 Bg2 Nf3 e5+ Ke4 Nd5 Qc2 Bf1 Ng5 Nde3 f4 Qh6 f5 Be2 Bc7 Bd1 Ne6 Bd8 Rf1 h1B+ Rf3 Bg2 Qh7 Bf1 Qh2 Bg2 Bd6 Rc7 Ba3 Rc1 Nec7 Kg5 f6 Kh5 f7 Bg5 f8B Rb1 Qf7 Ra1 Kd3 e4+ Kc3 Rb1 Bg7 Ra1 Bh8 Bf1 Bg2 Rb1 Bh1 Bh3 Ne6 Nf5 Kc4 e3 Kc5 e2 Kc6 Bc2 Qhe5 Nf6 Qh2 Kg4 Bc3 e1Q Nec7 Qd2 Rd3 Qf4 Be4 Rh1 Be1 Bd1 Ne6 Ne3 Bf5+ Kf3 Qf8 Qg7 Qf7 Ng4 Kd7 Qh6 Kc6 Ne5+ Kc7 Ng4+
2Q4R/2R1Qp2/1N4nQ/rp1nbbQ1/B3Pp2/4Rq1p/1B4rk/1K3Bqb w - - 0 1 legal: proof: c4 a5 g4 g5 b4 axb4 h4 d5 cxd5 e5 f4 exf4 h5 h6 Na3 Ra6 Nb5 Ra3 Nd4 Ra7 Ndf3 Ra8 Nh4 gxh4 g5 Qe7 gxh6 Qd8 e4 Ke7 a4 Kd6 d4 c5 Kd2 c4 Kc2 b6 a5 h3 h7 b3+ Kb1 c3 h6 b2 a6 Qh4 a7 Na6 Nf3 Qh5 Ne5 Nc7 Nc4+ Ke7 d6+ Kf6 d5 Kg5 d7 Kh4 d8Q+ Kg3 d6 Bf5 d7 Nd5 Qe7 Qf3 d8Q Bg7 Ra3 Be5 Qc8 b5 Nb6 Ngf6 Rh2 Ng4 Rc2 Rg8 h8R Rg6 h7 Rg5 Ka2 b1B+ Ka1 Ba2 Bb2 Bc4 Kb1 Be2 Qe1+ Kh2 Qh4 Rg7 Qhg5 Rg6 Re8 Rg8 h8Q Rg6 Qhh6 Rg8 Rc1 c2+ Ka2 Rg7 Re3 Bd1 Rh8 Rg6 Rb1 c1Q Ra1 Qc5 Kb1 Rg8 Raa3 Be2 Rec3 Qg1 Rc7 Rg6 Re3 Bd1 Bd3 Rg8 Bc2 Be2+ Bd1 Bf1 Be2 Bg2+ Bf1 Bh1 Rec3 Rb8 a8B Rg7 Bc6 Ra8 Re3 Ra5 Ba8 Bd6 Bc6 Ne5 Bd7 Ng6 Be6 Nb4 Ba2 Be5 Bb3 Nd5 Ba4 Nf8 Qgh4 Rg2 Q4g5 Ng6
k3b2B/1r2p2R/p1K1nqBb/B1n4Q/Qb2p1pN/1R6/1R1q1P2/Br1Q4 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 f5 cxd5 g6 e4 fxe4 g4 Bd7 h4 Be6 g5 Bc8 h5 gxh5 Na3 Nh6 Nc4 Ng8 Ne5 Bb7 Ng4 hxg4 Bg2 Ba6 Bf1 Bc8 Ke2 Kd7 Ke3 h5 Kd4 h4 Kc5 a6 d4 c6 b4 Kc7 g6 Kb7 b6 h3 g7 h2 d6 Qd7 d5 Rh3 b5 Rh8 Nf3 Qd8 d7 Rh4 d6 Qc7 d8Q Ra7 d7 Nf6 g8Q Qg3 Qg6 Qf4 Ra2 Ne8 Bc4 Bh6 Qa4 Qf6 Qh5 Nc7 Bf7 Ka8 Rb2 Rb7 Bg6 Rh3 Nh4 Rb3 Bd2 Rb4 Be1 Rb3 Bc3 Ne6+ Kc4 c5 Kd5 c4 Bd4 Qf3 Bh8 Rb4 Rb3 c3 Rb2 c2 Rb3 c1B Rb2 Rc7 b7+ Ka7 Rb3 Ba3 Ba1 Qf6 Rb2 Nc6 b8B+ Ka8 b6 Rb7 Be5 Na5 Bc3 Nb3 Kc6 Nbc5 Bd4 Qf3 Bh8 Qd3 Qg8 Rb3 d8B Qd2 Qe8 Bb4 Qd7 Qe1 Qd1 Qd2 Rc2 Rb1 Rb2 Ng5 Rb3 Be6 Bc7 Bf7 Rb2 Nge6 Bd8 Rd7 Bc7 Be8 b7+ Ka7 Ba5 Kb8 Re1 h1Q Rg1 Qh3 Rh1 Qf3 Rb3 Ka7 b8R Qf6 Rb2 Ba3 R8b3 Bb4 Rhh3 Ka8 Rhf3 Qe5 Rf7 Qf6 Rh7 Rb7+
R3K1n1/1bkPR1p1/pbqp1Q1q/1p1B4/qr4QQ/N7/2r2N2/2NRn2R w - - 0 1 illegal: No proof kernel
3bn2Q/1r2k3/2rpB2p/K1B2r1R/6Pp/B3QQ2/2b1q1pN/1rB1NNn1 w - - 0 1 legal: proof: g4 e5 a4 c5 h4 g5 b4 b5 d4 cxd4 axb5 gxh4 f4 f5 fxe5 f4 Ra3 Nc6 Rc3 Nb8 Rg3 fxg3 Kd2 a5 e4 g2 c4 a4 b6 d3 Kc3 d2 c5 h6 b5 a3 Kb4 a2 e6 a1R e5 Be7 b7 Qc7 b6 R1a7 Nf3 Na6+ Ka5 Bd6 b8B Rh7 e7 Rh8 c6 Qb7 c7 Bc5 Nh2 Rh7 Bc4 Rf7 Qf3 d1R Na3 Rf5 Be6 Re1 Rf1 Rf4 Nc2 Rd1 Ne1 Qe4 b7 Nf6 Rf2 Be3 Rc2 Nh5 Rc5 Bd2+ Kb5 Rf5 Ba2 Ng7 Ba3 Rh5 Bc4 Bg5 Ka5 Nf5 Rd5 Kf7 e8N Be3 Ng7 Rb1 e6+ Kf6 e7 d6 e8Q Bg5 Bc1 Bd7 c8Q Ba4 Rc5 Qd3 Qee3 Bc2 Qh8 Qd1 Bc7 Rc8 b8B Rab7 Bb6 Nc7 Be6 Ne8 B8a7 Rc6 Re5 Qd3 Bd4 Qf1 Bac5 Qd3 B5a3 Qc4 Qfe4 Ng3 Bdc5 Ne2 Qd5 Ng1 Nf5+ Ng7 Qdf3 Qe2 Qh7 Ne8 Qh8+ Kg6 Ng3 Bd8+ Bb6 Rg5 Ngf1 Rh5 Bf5+ Kf7 Be6+ Ke7 Rd5 Rf5 Rb5 Rf7 Rh5 Rbc7 Bd4 Rf5+ Bdc5 Rcb7#
8/N1p4p/k1N1K2q/p1p2r1Q/b4RNn/n2P3r/n4BQN/q1qR1RQ1 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 g5 c5 d6 Ra4 dxc5 Ra6 Qd3 Ra1 Qd8 h4 g4 g3 Qd4 Bg2 Qd8 Bf3 gxf3 g4 Qd5 g5 Be7 g6 Bg5 hxg5 Qd8 Kf2 Kd7 b4 f5 e4 a5 b6 Kc6 b5+ Kb7 e5 Qe8 d3 Nc6 e6 Nh6 e7 Qd7 e8N Qf7 g7 Qd7 g8Q Qd5 g6 Qd6 g7 Qe6 Nf6 Bd7 Nc3 Ra6 Ng4 Nb4 Be3 Na2 Qf7 Be8 Qh5 Rf8 g8Q Bc6 Qe1 Bd7 Rd1 Qg6 Kf1 f2 Ke2 f1N Bf2 Ne3 Nf3 Nc2 Nfh2 Na3 Qg1 f3+ Ke3 Qf6 Qgg6 f4+ Ke4 Nf5 Kd5 Nh4 Qg2 Qg7 Rhf1 Qh6 Qg1 Bc6+ Ke6 Rf5 Qg2 Ka8 b7+ Ka7 b8N Kb7 Bg3 f2 b6 f3 Nb5 Be8 Na7 Ba4 Rfe1 f1Q Nbc6 Qh1 Rf1 f2 Qg1 Qc1 Qgg5 Rf4 Qd5 Rf5 Qdg2 Qa1 Rfe1 f1Q Bf2 Rf3 Re4 Rh3 Rf4 Qc1 Nc8 Ra8 N8a7 Ka6 b7 Rf8 b8R Rf5 Rb2 Qe1+ Re2 Qed2 Ree1 Qa1 Rf1 Qdc1 Qg3 Qf3 Q3g2 Qfe3+ Re4 Qg5 Rf4 Qh6+
N1Nq1rKB/1P1rb1RR/1bbp3N/Q3Q1Rp/r6p/3kq3/1Q2np2/5N2 w - - 0 1 illegal: No possible last move, all moves rejected
R1bK4/P3Q1pb/6NQ/1nN1p3/2B1r1pr/1Nbq2k1/1rp1Q3/B1N2q1B w - - 0 1 legal: proof: d4 a5 g4 b5 c4 e5 dxe5 h5 b4 hxg4 Nf3 axb4 Ng5 b3 Nh3 b4 Ng1 Nc6 e4 Ke7 a4 f6 e6 Ra6 e5 Ra7 Ra2 Ra8 Re2 Nd4 Re3 Nb5 cxb5 Ke8 e7 Kf7 e6+ Kg6 Re5 fxe5 Bh6 Kf5 Bc1 Kf6 Ke2 Kf5 Ke3 c5 e8Q d5 f4 b2 h4 c4 b6 c3 e7 b3 h5 c2 b7 Qd7 b8N Ba6 h6 Qb5 h7 Qb4 a5 Qa3 Ne2 Bc8 a6 Qd6 a7 Qh6 Nd2 b1Q Nd7 b2 Nc5 Rb8 Ndb3 d4+ Kd3 Bd7 Kc4 d3 Kd5 Nf6+ Kd6 d2 Kc7 Rb4 Kd8 Qh3 Qf7 Re4 e8B Bd6 Qe7 Qd3 Qe1 d1B Rh4 Rg8 h8Q Bc8 Qh6 Rh8 Bd2 Nd5 Bc3 Rh7 Bc6 Nc7 Nec1 Bf3 Qe2 Nb5 Bd5 Qa1 Bg2 b1R Bh1 Qa6 Ba1 Rb2 Bc4 Bg2 Nd7 Bb4 Rh2 Qf3 Ndc5 Qf1 Rh3 Bc3 Rd3 Be6 Rd7 Bf3 Rb7 Bd7 Rb8 Bc8 Ra8 Bg2 Qhd6 Rh4 Qdd2 Kg6 f5+ Kh5 f6 Bf3 f7 Qd6+ Qd7 Qd3 f8N Bg2 Qf4 Bf3 Qf6 Bg2 Qc6 Kg5 Qdd6 Kf4 Ng6+ Kg3 Qb6 Rf4 Qb7 Be4 Qe7 Bef5 Qg5 Re4 Qh6 Bfe6 Qd7 Bg8 Qd6 Bh7 Qd7 Qe3 Qe7 Qd3+
1N1B1Nr1/p1rK4/pB2Q2R/7B/2b3bp/1Q4P1/3p1q2/QqrNBnbk w - - 0 1 legal: proof: e4 f5 exf5 c5 f4 g5 d4 cxd4 a4 Nh6 a5 Ng8 a6 bxa6 f6 Qb6 Qe2 Qc7 Qd1 Qd8 b4 Qa5 f5 Qd8 g3 Nc6 h3 Ne5 Ra3 Rb8 Rf3 Ra8 Rf4 Ng4 hxg4 gxf4 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 f3 c4 d6 Kc6 d5 b5 f2 b6 e4 b7 d3 b8B d4 g5 d2 g6+ Ke8 f7+ Ke7 f6+ Ke6 c5 Kf5 g7 d3 Ne2 Kg4 Nbc3 Kf3 Bc7 e3 Bb6 Nh6 g8Q Rh7 Qa4 d1Q Qa1 Bd6 f8B Ng4 f7 Nh2 Bd2 Qf6 Be7 Bg4 f8N Qb1 Be1 d2 Nd1 Qff5 Bh3 f1B Qb3 Be5 Bg5 Bd4 Bgd8 Rc7+ Kd6 Rac8 c6 Ra8 Nf4 Qf6+ N4e6 Bc4 Nd7 Nf1 Nb8 Qf7 Nf8 Qff5 Qb4 e2 Rh2 Bg1 Qba4 Rg7 c7 Rf7 c8Q Rc7 Qe6 Qf7 Bef2 e1R Q4a3+ Re3 Qa4 Rc3 Qb3 Qf6 Be1 h4 Re2 Qf4+ Re5 Qe3 Rh5 Rc2 Rh6 Rc1 Qb5 Qf2 Qb4 Bf5 Bg4+ Kg2 Qb3 Kh1 Bh5 Bg4 Nc6 Rac8 Nb8 Rc5 Ke7 Rg5 Kd6 Rg8 Kd7 Rc7+
1rB1N1b1/R6q/3N4/3np1q1/B2bBBQp/q2Qp3/qrp4P/kN2K2Q w - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 a4 b5 axb5 d5 Qe2 dxc4 Qh5+ Kd7 Qd1 Ke8 f4 g5 f5 a4 Ra3 Nc6 Rf3 Na5 Rf4 gxf4 bxa5 Qd7 Nf3 Qd3 Ng1 Qd8 g4 Kd7 d4 Kd6 a6 Kd5 g5 e5 b6 c5 b7 h5 b8N a3 g6 h4 a7 f3 g7 c3 f6 a2 f7 a1Q Ba6 c4 Nh3 c2 Bf4 c1Q Ng5 c3 Nd7 e3 Ne4 c2 Nd6 Nf6 g8B Rb8 a8B+ Bb7 Bb5 Qa2 Ba4 Qca3 Bh7 Bc6 Bf5 Rb2 Bg4 Be7 f8Q Qc7 Qh6 Rhb8 Qg6 Qa7 Bb7 Bd8 Bh3 Bb6 Qg4 Bc5 Bc8 Bb5 Rg1 Bc4 Bg2 Qc7 Bh1 Qd8 Rg2 Qg8 Rd2 Qh7 Rd3 Bb3 Rc3 Bb6 Rc7 Bc4 Ra7 Bb3 Ne8 Kc4 d5 Bd4 d6 Nd5 Nc5 Kb4 d7 f2+ Ke2 Kc4 d8Q Kb4 Be4 Kc4 Qh1 Kb4 Kd3 f1Q+ Qe2 Qh3 Nb7 Q3f5 Qg4 Qg5 Ke2 Kc4 Nbd6+ Kb4 Nd2 Kc3 Kf1 Nb6 Qdd7 Bg8 Ke1 Nd5 Qb5 Rb4 Qbd7 Kb2 Nb1 Ka1 Qb5 Rb3 Qd3 Rb2
n7/k2b1B1Q/p1b2NQ1/PQKRR3/1b2pnRb/n1p1r3/1NNpr2N/8 w - - 0 1 illegal: No possible last move
5Bk1/2R3p1/BRqpp2q/K2r2R1/5pn1/4bBNQ/1PQ2Qp1/2n1Qbr1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 Ke7 d4 Qe8 d5 Qd8 e6 Kf6 d6 cxd6 e7 Ke6 e8B f6 e4 Rh3 e5 Rb3 Nd2 Kd5 e6 Rg3 e7 Rh3 Ndf3+ Kc5 Nd4 Rh8 Ne6+ dxe6 Kd2 Kd5 Kc3+ Ke5 Kb4 f5 h4 Kf6 c4 a6 h5 g3 h6 g2 b6 Ra7 h7 Nh6 c5 Rb7 c6 Ng4 c7 Nd7 Ka5 Nc5 Ne2 Qd7 Rh5 Qc6 Rg5 Nd3 Qe1 Rb8 Bf4 Nc1 b7 Ra8 Bd7 Kf7 Ng3 Rb8 e8R Be7 Rg8 Ra8 b8Q Bd8 Be5 f4 Qb6 Rb8 Qbf2 Rb5+ Ka4 a5 Bf6 Ba6 c8Q Bb6 Be7 Bc5 Bf8 Be3 Bc4 Rd5+ Bb5 Qb7 Qcc2 Qc7 Bbc6 Bf1 Bc8 Qd7 Ba6 Qc7 Ka3 a4 Kb4 a3 Bcb7 a2 Ba8 Rd1 Bf3 Qc6 Ka5 Rd4 Be7 Rd2 Rb8 Rd5+ Rb5 Ra8 h8Q Rc8 Qh3 Kg8 Bf8 Ra8 Rb1 a1Q+ Qa4 Qa3 Ra1 Qd3 Qac2 Qh7 Ra4 Qh6 Rc4 Qd7 Rc7 Qc6 Kb4 Rc8 Rb6 Ra8 Bd3 Ra2 Ba6 Ra1 Qce2 Nb3 Qc2 Bb5 Qec3 Rg1 Qce1 Nc1 Ka5 Bf1+
1Bb1N3/R3p2p/1BR1B3/p1Pn2R1/n1Rp1Q1Q/q1n2r2/kp2Q3/1q4bK w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 b4 f5 exf5 g5 b5 gxh4 Nc3 Qb6 Nd5 Qc7 Nb4 Qd8 d4 cxb4 c4 a5 b6 Ra7 d5 Rc7 c5 Rc6 dxc6 d5 Nh3 Kf7 Ng1 Ke8 f4 Kf7 Kf2 d4 g4 b3 Kg2 b2 g5 a3 g6+ Kf6 b7 a2 g7 Qe8 c7 Nc6 b8B Kf7 f6 Ke6 f5+ Kd5 f7 Ba6 c8Q Bc4 f6 Qd7 Nh3 Ne5 Qe2 Ba6 Ng5 Qf5 Ne4 Nd7 Nd6 Nb6 Bf4 Na4 Rc1 a1Q Rc4 Qfb1 Ne8 Qa3 Qcg4 Bc8 Bfc7 h3+ Kg1 h2+ Kg2 Qc3 Bb6 Qa3 Rg1 h1N Qh4 Ng3 Kh2 Qd1 Bh3 Ne4 Kh1 Nec3 Bd7 Qb1 Be6+ Kc6 Rf1 Kb5 Re1 Nh6 g8R Nf5 Rg5 Ne3 Rf1 Bh6 f8Q Ned5 f7 Rg8 Rfg1 Rg6 Re1 Rf6 Reg1 Rf2 Rg6 Bc1 R1g5 Rf5 Qfh6 Rf3 f8R Be3+ Kg2 Qf5 Kh1 Bg1 Qf4 Qb1 Qhh4 Bd7 Bf7 Bf5 Rc6 Bc8 Be6 Ne4 Rc2+ Kb4 Rc4+ Kb3 Rf6 Ka2 Rc7 Nec3 Ra7 Qg6 Bd7 Ne4 Rc6 Nec3 Be6 Qb1
r4R1R/1p1Q2rP/p3p1n1/1n1BN1pn/4K3/3p3R/N1bN1NQ1/k2nq1Q1 w - - 0 1 illegal: No proof kernel
8/2p2N2/1p6/1kpQ1p1Q/2b2QrQ/1rRqN3/Rr1pRP2/bNb1BKq1 w - - 0 1 legal: proof: d4 a5 c4 d6 b4 axb4 d5 e6 c5 dxc5 g3 Nc6 d6 Ra4 Bg2 Ra8 Bd5 Nb8 h4 exd5 g4 f5 g5 Nc6 Bf4 Ne5 Bd2 Nf6 Bc1 Nf7 gxf6 g5 Qc2 g4 Qd1 Ng5 hxg5 Ra6 Rh3 Ra4 Rh1 Ra8 a4 Kd7 e4 Kc6 a5 h5 d7 g3 a6 g2 f7 b6 a7 h4 e5 b3 e6 h3 g6 h2 g7 d4 g8N d3 e7 b2 e8R Be7 f8Q Rh4 Nf3 Rb8 a8Q+ Kb5 Bd2 Bf6 Ne7 Rg4 Nd5 Ba6 Qd6 Bd4 Rf1 h1Q Ne5 g1B Ne3 Bh2 Qad5 Qg1 Nf7 Ra8 Ra2 Bf4 Re4 Bh6 Qf4 Bc3 Rc4 Bcg7 Bb4 Bh8 Rc3 Bf6 Nd2 b1R Ba5 Rb3 Nb1 Rg3 Qh5 Rg4 Rc1 Ba1 Rc3 Qf8 d8Q Qd6 Qdh4 Re8 Qfh2 Ree4 Qf4 Reb4 Kd1 Rb2 Re1 R4b3 Bb4 Qg3 Re2 Qg1+ Nf1 Qd8 Ke1 Qd6 Qff3 Bc1 Qf4 Qd8 Qde5 Bc8 Rcc2 Be6 Qed4 Qg2 Ne3 Qg3 Kf1 Bc4 Be1 d2 Rc3 Qh2 Qde5 Qd3 Qd5 Qg1#
B1R1BQ1r/2Q5/b6p/Kn2n3/1nqr1Qnb/knN3BP/1N2Q1Nq/1r1q4 w - - 0 1 legal: proof: d4 g5 b4 c5 f4 gxf4 a3 cxd4 Ra2 e5 a4 b5 Ra3 e4 Rf3 exf3 axb5 Qc7 Nd2 Qb6 Nb1 Qd8 Kd2 Ke7 g4 Kd6 c4 f5 e4 a5 b6 d3 Kc3 f2 g5 f3 g6 a4 g7 h6 b7 f4 b5 Kc5 b6 d5 h3 d4+ Kd2 Kb4 c5 a3 c6 a2 e5 a1N e6 Ne7 g8N Qc7 Qe2 Na6 b8Q Ng6 e7 Ne5 e8B Be7 b7 Bh4 Bg2 f1Q Nc3 f2 Nd1 f3 Nb2 Ka3 Ne7 Nb4 Ng6 Ra4 Nf4 Qd6 Qa7 Qc7 b8Q Ba6 Qc5 Qd6 Rh2 Qc7 Bh1 Qg2 Qd6 f1R Qf8 Qc8 Qbd6 f2 c7 Qe6 c8Q Qc4 Qdf6 Qg3 Rg2 Qh2 Rg8 Re1 Qc7 Rf1 Nf3 Rg1 Ne1 f1N+ Kd1 d2 Neg2 Nb3 Nd5 Qd3 Qf4 Qc4 Qd3 Ne3+ Ke2 d1N Nc3 Nc5 Kd2 N3g4 Qe2 d3 Ne1 Nde3 Ba8 Nf5 Ng2 Nd4 Na2 Qd5 Kc3 Ncb3 Bd2 Qf7 Be1 d2 Bg3 Rd1 Rg6 Qg8 Rc6 Rb1 Rc5 d1Q Rc4 Nf7 Rc6 Nb5+ Kc4 Nc1 Nc3 Nfe5+ Kc5 Qgd5+ Kb6 Nb3 Rc5 Nbc6 Rc4+ Rb4 Rc5 Rd4 Rc4+ Nb4 Rc5 Nc1 Ka5 Qc4 Qa7 Nf2 Rc8 Nfg4 Qc7 Nb3+
6B1/qk6/1BrrQbNn/2pQQ1n1/q4K2/b1PB1N2/4bQNr/n2qr1R1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 d4 f5 h4 e5 g6 a5 h5 g3 d5 f3+ Ke3 f2 g7 f4+ Kd2 a4 b6 f3 Ke3 a3 b7 a2 b5 a1N h6 g2 b6 Ra6 c3 Qh4 h7 Ba3 d6 Kc6 d7 Nh6 d8Q Bg4 g8B Nd7 b8N+ Kb7 Qe1 Nc5 Bf7 Ne6 Qed2 Ng5 Nh3 g1Q Bd3 f1R+ Qf2 Rd1 Nf4 c5 Nc6 Rd2 Bd5 Qd1 Rg1 Qa4 Bg8 Bh5 Be2 Rd6 Nd2 Qg4 Bf1 Qd7 Bd3 Qc7 Ne7 Qb8 Nh3 Qa7 Nf4 Rc6 Qd5 Bg4 Qh4 f2 Ng2 f1Q Ng6 Be2 Nf3 Qfd1 Qh3 Bf1 Qhe6 Be2 Kf2 e3+ Kg3 e4 Kf4 Bf1 Bd2 e2 Be3 e1B Bd2 Kb8 b7 Bh4 Be1 Be2 Bg3 Kc7 Bh2 Rd6 Bg3 Rac6 Bh2 Kb6 b8Q+ Qb7 Qbe8 Qba7 Qf8 Kb7 Qff6 e3+ Qfd4 Bf1 Bg3 e2 Bh2 Ne4 Qf2 e1R Bg3 Bf6 Bh4 Bd4 Bd8 Bf6 Bb6 Be2 Bf7 Re8 h8Q Re7 Bg8 Rh7 Qb3 Ng5+ Qbc4 Bd8 Qhe5 Bf6 Qce4 Ng4 Q4d4 Rh2 Qdc4 Nh6 Qcd4 Qab3 Qdd5 Qba4+
1r3Q1R/1Bbr1rn1/2r1R2n/k7/2pK1nq1/q1PbB2N/1QB2R2/nQ1bQ3 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 Nc3 h6 Nd5 h5 axb5 gxf4 g5 Bg7 Ne3 Bf8 Ng4 hxg4 Ke2 Kd7 d4 a5 h4 e5 b4 f5 b6 Kc6 d5+ Kb5 d6 c5 d7 f3+ Ke3+ c4 h5 a4 c3 g3 h6 a3 g6 f2 g7 a2 b7 f4+ Kd2 f3 Ke3 g2 h7 Qe7 d8Q Na6 Qc2 Nh6 g8B Nc7 Bd2 Ra6 Qd6 Bg4 Rh3 Rc6 Qcd3 Ne6 Be2 f1R Be1 f2 Qb8 Ng7 Qd1 Kb6 b5 Qa3 Rh4 Bd6 Bd2 Ka5 b6 Bc7 Nh3 g1Q Bd5 Qg2 Rb1 a1N Qf8 Bh5 b8Q Qg4 Qc1 Rd1 b7 f1B Bf3 Bd3 Rb6 Rf1 Bd1 Rf7 Bc2 Rg8 h8R Rd7 Kf2 e3+ Ke1 e2 Kf2 e1R Be3 Rh1 Qe1 e4 Rb2 Qg6 Rf4 Bd1 Rf6 Qg4 Re6 Rg1 Qf5 Rh1 Qbf8 Rg1 b8Q Rh1 Bd4 Rf1+ Ke3 Rf4 Bc5 Rf2 Qg6 Rff7 Kd4 e3+ Qe4 e2 Ra2 Bg3 Qb2 Bf4 Be7 Bc7 Bg5 Rde7 Be3 Rd7 Qf2 e1N Qd2 Ng2 Qe1 Nf4 Q4h1 Rc5 Qhg1 Bd6 Bb7 Rc6 Qgf1 B1e2 Qeb1 Bd1 Qe1 Bc7+ Qd6 Qh5 Ba4 Qh4 Q2c1 Bg4 Rf2 Rb8 Bc2 Bd1 Qcb2 Rde7 Qd8 Qg4 Qf8 Rd7+
Q2b3q/6r1/3nBR2/1R1QK2B/pBQqR1r1/Pbb5/r2r4/Nq2Bnbk w - - 0 1 illegal: No possible last move, all moves rejected
3n2Rn/1r2r3/kB1R4/3pNBb1/1n1PB1K1/r3pQ2/Q1bqRb1B/3bQ2b w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Nc3 g5 Na2 gxh4 axb5 Na6 b6 Nb8 b5 Bg7 Nb4 cxb4 Ba3 Bh6 Bc1 Bf8 Ke2 a5 g4 e5 c4 h5 f4 a4 c5 h3 b7 b3 b6 b2 g5 b1B f5 a3 f6 e3 Kf3 h2 d3 h4 g6 h3 c6 a2 g7 e2 c7 e1B Be3 e4+ Kf4 Nc6 b8Q Rh7 b7 Nh6 g8Q Nf7 Bc1 e3 Kg4 Bf2 Nf3 Bc2 Ba3 Nh8 Ne5 Re7 Bc5 Ra3 Qe1 d6+ Qe6 Bh6 Bb6 Bg5 Rd1 a1N Qa8 Bd7 Rg1 h1B b8B h2 Rg2 Bc8 Rd2 Bd1+ Be2 Nc2 Bf3 N2b4 Qf5 Be6 c8B Beb3 d4 d5 Re2 Bbc2 Be4 Qc7 Qa5 Nd8 Qf3 Qc3 Bcf5 Qd2 Qa6 Rb7 Qc4 Re7 Qa2 Rb7 f7+ Ke7 B8a7 Kd6 f8R Re7 Rg8 Rb7 Nd7 Kc6 Bb8 Kb5 Ne5 Ka6 Rg3 Bg2 Rh3 h1R Rh6 Rh2 Rd6 Bh1 B8c7 Rh7 Nc4 Rb8 Rdg6 Ne6 Bh2 Re7 Ne5 Nd8 Rd6 Rbb7
2b2bN1/2b1nBr1/1rp1b1bR/r5Q1/2Pk2KQ/1R1q2QN/p7/2NnRRn1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 f4 b5 a4 g5 axb5 h6 b3 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd4 g6 Qd8 Bg5 hxg5 Ke2 Kd7 c4 Kd6 h4 Ke5 h5 a5 g7 f5 b6 f3+ Ke3 c6 h6 f2 h7 f4+ Ke2 f3+ Ke3 g4 b7 a4 b4 g3 b5 a3 b6 a2 d3 g2 Qd2 Ra5 Qb4 Nd7 b8R Ndf6 b7 Ng4+ Kd2 Ne3 Nc3 Kd4 Nh3 g1N Bg2 f1B Qb5 e5 Re1 Ne7 g8N f2 Bf3 Bg2 Bh5 f1B Bf7 Be2 Rf1 Bh5 Ke1 Be6 Kf2 Nd1+ Kg3 e3 Kh4 e4 Qg5 Qd5 Re1 Bg6 Ne2+ Kc5 Nc1 e2 Rf1 e1R Kg3 e3 d4+ Kd6 Kh4 e2 Kg3 Qf5 d5 Ke5 d6 Kd4 d7 Qd3+ Kf4 Bgd5 d8Q Bc8 Qh4 Ra4 Qa5 Bde6 Qag5 Ra5 Ra8 Rc5 b8Q Re5 Ra3 Ra5 Nf6 Rg8 h8R Rg7 Rb3 Bh5 Ng8 Bg6 Rf3 Rf1 Rh6 e1B Rf2 Bc3 Rf3 Re1 Rf1 Ree5 Re1 Reb5 Qc7 Rb6 Qb8 Rf5+ Kg4 Bb4 Qbg3 Bd6 Rh2 Bb8 Rf2 Bc7 Rff1 Ra5+
B2Qb1r1/nQn4b/2pp1bbQ/2BR2bR/R1Pq3Q/3nkN2/r2r2K1/4B3 w - - 0 1 legal: proof: f4 b5 g4 h5 d4 e5 g5 b4 Nc3 b3 Nd5 exd4 Ne3 g6 Ng4 hxg4 f5 gxf5 axb3 f4 b4 Be7 b5 Bf8 Kf2 Ke7 b4 Kd6 e4 Ke5 c4 a5 h4 f5 g6 g3+ Kf3 a4 h5 d3 h6 Kd4 e5 a3 b6 d2 e6 g2 e7 a2 e8Q c6 b7 Be7 b5 Na6 b8Q Bg5 g7 Nc7 b6 Ne7 h7 Rg8 Rb1 a1B h8B Ra2 Qb3 d1N b7 Nb2 Qg6 Nd3 Rh5 d6 Be2 Bd7 Qh6 Nc8 Ba3 Qf6 Rd1 Na7 Qd8 Be8 b8R Rd2 Rb4 Qe5 Nh3 g1R Ra4 Rg2 Ng1 Ra2 Bf1 Rgd2 Qb7 Qc5 Be2 Qb6 Kg2 Ke3 Nf3 Baf6 Bb4 Qd4 Bc5 Rdc2 Nd2 Rcb2 Bg4 f3+ Kg3 f2 Kg2 f4 Nf3 Rd2 Bc8 Rf8 g8Q f1B+ Kh1 Be2 Qgh7 Rg8 Kg2 Bg6 Qb3 Be8 Bb7 Bg6 Ba8 Be8 Ne1 Bg6 Qb7 f3+ Kh1 f2 Kg2 Bg4 Nf3 Bd7 Qhe7+ Kf4 Qe1 Bde8 Qh1 Ke3 Qh4 Be7 Be5 Bf6 Bg3 f1B+ Kh1 Be2 Be1 Nf2+ Kg2 Bed3 Rb1 Bdf5 Rb5 Bb1 Bb4 Bh7 Rd5 Bbg6 Bc5 Nd3+
2N2KB1/p5RQ/2Qp2Rr/2nPrr2/1q2b3/2RqB1BB/1k3nr1/n1b2Qr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Na3 exf4 axb5 Ba6 b6 Bb7 Nb5 Bc8 Nc3 c6 b5 c5 Nd5 Bb7 Nb4 cxb4 Ba3 Ba6 Bc1 Bc8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 Kh5 Kd4 e4 f5 g4 h3 c4 h2 b7 f3 c5 f4 e5 f2 d3 Kc3 e6 b3 d4 f3 c6 b2 g5 b1Q g6 Ne7 c7 Rg8 b6 Nec6 e7 Nb4 e8Q Nc2 g7 Ba3 Kh6 Na6 b8Q Bb7 c8R+ Nc5 Be3 Qb4 Nh3 Be4 b7 Bc1 Ng5 Kb2 Ra6 Na1 Rg1 h1R+ Bh3 f1R Nf7 f2 Rag6 Re1 R1g4 f1R Nd6 Rf5 Qc7 Rhg1 b8B Rh8 g8B Re2 Kg7 h5 Rg2 h4 R2g4 Reg2 Qf1 Rh6 Qf7 Re5 Qc6 Rf5 Bc7 Re5 Rg3 Rb8 Q7f5 Rb5 Kf7 Ra5 Rg7 Rb5 Qh7 Ra5 R3g6 Rb5 Bg4 h3 Bb8 h2 Bh3 h1N Rc7 Nf2 Nc8 Qg5 Kf8 Qg3 d5 Rb6 Bg5 Qd3 Be3 Ra6 Qb5 Rae6 Rc6 Reg5 Bg3 d6 Qb7 Ree5 Qa8 Nb7 Rc3 Nc5 Qc6 Rgf5+
1R5N/BQR1p3/Qp2Rrn1/1P1r3n/qKnkB3/2r1r3/bB2Bbr1/2q4Q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 Nc3 d6 b5 fxe4 Nd5 Qd7 Nb4 d5 cxd5 axb4 Qf3 Qd6 Qd1 Qd8 d4 Kf7 Kd2 Kf6 a4 h5 f4 c5 g4 e3+ Kd3 e2 Kc4 e1R d6 b3 d7 b6 d5 h3 a5 h2 d6 b2 f5 Ke5 f6 b1N g5 h4 g6 h3 g7 Nc6 a6 Re3 f7 Nf6 g8R Rh6 a7 Nh5 Ne2 Rf6 Nf4 Bh6 f8Q Bg7 Rg1 h1R Rg6 h2 Be2 Rg1 Bb2+ Ke4 Qe1 Rg2 Qh1 Bb7 Rh6 Rc8 Ng6 Rc7 Ra3 Qa8 Rc3 Na3+ Kb3 Kd5 d8Q Kd4 d7 Ne5 Qc8 c4+ Kb4 Bd5 Nh8 Ng6 d8B Rd7 Rc2+ c3 Qb7 Ba2 Bc7 Nc4 Qfc8 Rdd6 Bb8 Rd5 Qe1 h1Q Re8 Qh4 Qh1 Qf4 Qa6 Qc6 a8B Qg4 Qcb7 Qc7 Rc1 Qh4 Ba3 c2 Ba7 Qg4 Rb8 Qc6 Rb1 c1R Bb2+ Rcc3 Rf1 Qc7 Rf5 Qcf4 Re5 Qf1 Re6 Qc1 Rc6 Rfe6 Rc5 Be5 Rc7 Bg3 Re8 Bf2 Rb8 Nge5 Rg6 Rc6 Re6 Ng6 Re5 Rf6 Re6 Rc5 Qc8 Qf4 Be4 Rd5 Qcb7 Qg4 Bf1 Qgd1 Be2 Qa4+
r2r1Nk1/q1nnq1q1/2BK1Q2/R4N2/1N1pB3/2QP1n1n/b3rbQp/2B1Q3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ra3 exf4 Rb3 c5 axb5 Ba6 b6 Bb7 b5 Bc8 Rb4 cxb4 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 Kf7 e4 d5 c4 a4 g4 h3 b7 a3 d3 f3 g5 b3 b6 h2 c5 h4 c6 f2 c7 f4 Qc2 a2 Nc3 a1Q Qb2 h3 Nge2 f3 Ng3 Bc5 Na2 Be6 c8Q Nf6 g6+ Kg8 g7 Ne8 Nf5 Qe7 Nb4 Qa7 Bg2 f1N Qc3 f2 Qe1 Be3 Qcc3 d4 Rg1 h1N Bf3 b2 Rg5 Na6 b8N b1R b7 h2 Nd7 Rb2 b8Q Nc7 Qb6 Nd2 Nf8 f1Q Bg2 Ba2+ Qe6+ Qf7 Qf6 Nf2 Bh1 Qg1 Bf3 Na6 Bg2 Nec7 Kd6 Nc5 e5 Nh3 e6 Nf3 e7 Nd7 e8B Re2 Rh5 Nd2 Be4 Nf3 Rg5 Bf2 Rh5 Nb8 B8c6 Qe8 Ng3 Qg2 Ra5 Nd7 Nf5 Qg5 Qd8 Kf7 Ne6 Qg2 Qh4 Qd8 Qh6 Re8 Nf8 Qdg5 Qh4 Red8 g8Q+ Ke8 Qgh8 Kf7 Qg4 Qg1 Qe5 Kg8 Qe7 Qg3+ Qe5 Qh4 Qg2 Qg7 Qe7 Qf6+ Qe6+ Qf7 Qf6 Qe7+
nQ1K2k1/Q2n4/rNb1RRqp/6Qn/3b1n2/R2rrB1P/q2p1B2/1Q1b2B1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Nd2 e4 Ndf3 exf3 Ra4 Qf6 Ra1 Qd8 Kf2 f5 g4 Kf7 b4 a5 c4 d5 e4 a4 c5 h6 c6 d3 g5 a3 h3 a2 c7 d4 b6 d2 e5 Bg7 b7 Qd6 b5 Ra6 b6 Nf6 Ne2 Ne8 Bg2 Bd7 c8Q Nc7 Nc3 Na8 Rf1 Rd8 Qc5 Bc6 e6+ Kf8 Bb2 d3 Qb1 d1B g6 d2 e7+ Kg8 Nd5 Kh8 Bd4 Re8 Bh1 Nd7 b8B Qe6 Be3 Bd4 g7+ Kh7 b7 Qd6 Kg1 f2+ Kh2 Qe6 Bc7 f3 Kg3 Qe4 b8Q f4+ Kg4 Qc2 Re1 f1N Bg1 Ng3 Qca7 Ne2 Rf1 f2 Nb6 f3 Bg3 Qd3 g8R Qc2 Rg6 Qd3 Re1 f1R Kh5 f2 Be4 Rf8 e8Q Rf3 Qee5 Nf4+ Kg4 Qc2 Kf5 Qd3 Re2 Re1 Rf6 f1N B3f2 Qc2 Qeb5 Rc3 Re3 Qd3 Re2 Qg3 Bg2 Rd3 Bf3 Qg8 Re5 Ree3 Qa5 Qe8 Re7+ Kg8 Qae5 Ng2 Ke6 Nf4+ Kd6 Ng3 Ree6 Ngh5 Qf5 Kg7 Qg5+ Qg6 Ke7 Kh7 Kd8 Kg8 Qbb5 Bb7 Rb1 a1Q Rb3 Qb2 Ra3 Qa2 Qb1 Bc6
nn3q1k/3q2pB/R2prRRb/1Qn3Q1/4r2N/N2P1Q1q/bR1b1b2/1N5K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 Ba3 exf4 axb5 c5 b6 Rh7 b5 Rh8 Bb4 cxb4 Kf2 a5 Kg2 f5 h4 Kf7 e4 a4 c4 d6 h5 a3 h6 g3 h7 a2 e5 b3 c5 b2 c6 f3+ Kh3 f2 Kg2 f4 c7 Be6 c8Q Be7 b7 Nf6 d3 Qd7 b6 Re8 h8R Ra4 Qcc2 Nd5 Qcc1 Bg5 Nf3 Re4 R8h6 Kg8 Nh4 Nc7 Qf3 Na8 Rf6 Kh8 Rg1 Bh6 Kh1 Bb3 Qd2 Re6 Bh3 f1Q Bf5 Bc4 Bh7 Bd5 Qfe2 f3 Qg5 f2 Qf3 g2+ Kh2 Nc6 b8N Bb3 Na6 Nb8 b7 Bc4 Nc7 Bd5 Nc3 b1N N7b5 Nd2 Na3 Nb3 Ncb1 Nc5 Rf4 Rf6 e6 Bb3 e7 Rfe6 Rf6 Bd5 Nd2 Bc4 Re1 a1B Ndb1 Bc3 Rc1 R6e5 e8Q+ Bg8 Rc2 Bd2 Rb2 Re7 Qeh5 Ba2 Rb6 R7e6 Ra6 Na4 Qb5 Nc5 Qg6 Qd1 Qg5 f1Q Qff5 Qh5 Qf3 Nc6 b8R+ Qhe8 Qc4 Qf8 Rb2 Nb8 Qb4 Qe2 Qb5 Qe3 Rc1 g1B+ Kh1 Bf2 Rc4 Re7 Rg6 R4e6 Rf4 Re4 Rff6 R7e6 Qff5 Qg3 Qf3 Qh3+
5nQb/2kr2N1/Q1pb1q2/2R3NB/b1Kq3N/BnP4B/1rnp1Q2/1b1Q2q1 w - - 0 1 legal: proof: d4 h5 b4 e5 g4 hxg4 a3 exd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Bd6 Bg2 Bc5 Bf1 Bf8 Kd2 g5 Kd3 d5 f4 Kd7 h4 a5 e4 g2 b6 c6 f5 g3 f6 a4 e5 a3 f7 g4 c3 a2 b5 a1N h5 Nb3 h6 Ne7 b7 Rh7 b6 Ra2 Bb2 Na6 b8Q Ng6 b7 Qf6 Nf3 g1Q Nbd2 g2 Qa8 g3 b8Q Bd6 Nh4 Nf8 Ba3 Rb2 e6+ Kd8 Qb4 Kc7 e7 Bf5+ Ne4 Qf2 e8B g1B Qc4 g2 Qc5 Bgh2 Rg1 Bhe5 Rh1 g1Q Bh3 Rg7 h7 Bg6 h8Q Q2f4 Qd2 Bh7 Qg8 Nb4+ Ke2 Bf5 Ng5 Bb1 Qa6 Nc2 Qd1 Rh7 Rh2 Rg7 Rf2 Qfg4+ Rf3 Qd7 Rf5 d3+ Kf3 d2 Ke2 d4 Kd3 Qdd8 Kc4 d3 Qf2 Bd4 Rc5 B4e5 Qdf3 d1B Qh1 d2 Qhf3 Nh7 f8N Rd7 Bh5 Bd4 Nf5 B4e5 Ng6 Nf8 Q3e2 Qfe7 Qee1 Bh8 Ng7 Qf6 Nh4 Qb8 Bf7 Nc1 Qf4 Qb6 Ra5 Nb4 Bh5 Ba4 Qff2 Nc2 Qd1 Nb3 Rb5 Qe3 Rc5 Qed4+
k4rn1/1n2b2B/1K2p3/NNBQQ1B1/n3qp2/4Nr2/Qb1qP1N1/1r1b2nR w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 d4 cxd4 g4 h6 f4 gxf4 g5 h5 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Kf2 f5 c4 d5 h4 Kd7 g6 Kc7 c5 Kb7 g7 a5 b6 f3 h5 d3 Ke3 g3 Kd4 g2 b5 a4 h6 d2 h7 f2 Nh3 g1N Bg2 f1Q Be4 a3 Nc3 a2 Nf4 a1B Ng2 Ra5 c6+ Ka8 Kc5 d4 c7+ Nc6 Nd5 d3 Nde3 Bd7 c8N Qf4 Na7 Ra3 Qc2 d1R Qa2 d2 b7+ Kb8 Bc2 Bb2 Qd5 Qe8 Kb6 Na5 Qa2 Re1 Be4 d1N Bd2 Nh6 g8Q Nc3 Qgd5 Rb1 Bc1 Rg8 h8B e6 Bf6 Be7 Bd4 Qg6 Bc5 Rf8 Nc4 Nd1 Ka6 Kc7 b6+ Kd8 b8N Ng8 b7 Kc7 Qd3 Ba4 Nbc6 Qfg5 Qd2 Rf3 Bd3 Nc3 b8Q+ Kd7 Nb5 Bd1 Qd6+ Kc8 Qe5 Nb7 Kb6 Qf4 N6a5 Qgh6 Qe4 Kb8 Qe5+ Ka8 Be4 Qhh4 Qdd5 Qe1 B1e3 Qd2 Bd3 Qd4 Bg5 f4 Bh7 Qe4 Nce3 Na4+
1R1nr1r1/1b1Rp2R/4Ppn1/b1Q3nR/5qn1/3Qn1QN/1kBB2B1/1n1r3K w - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 d4 cxd4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 Kf2 d5 Kg2 Kd7 c4 Kd6 h4 Ke5 b4 a5 e4 a4 b6 g3 b5 d3 c5 Kd4 c6 Kc3 c7 f6 g6 a3 e5 d4 b7 d2 e6 a2 b6 f3+ Kh3 g2 Kh2 f2 g7 d3 h5 Qd4 h6 Qf4+ Kh3 Nd7 b8Q Ne5 b7 Ng6 h7 Nh6 g8Q Ng4 Rh2 Bh6 Qf3 d1N Qf8 Rg8 Bd2+ Kb2 h8R Nc3 Rd1 a1N Rh7 Nb1 Qd8 Nc2 Qfd5 Nb4 Qc5 Nc6 Qdd6 Bd7 c8B Nd8 Rh1 Bb5 Bd7 Ba6 Ba4 Bg5 Bc2 Bh4 Be2 f1N Bf3 Be1 Qbc7 Rc8 b8R+ Bb7 Rh2 Qc4 Qg3 Qf4 Qd7 Re8 Ne2 g1N+ Kg2 Nh3 Kh1 Rg8 Ng1 Ng5 R2h5 Re8 Bg2 Rg8 Be3 Ba5 Nh3 d2 Qd3 Re8 Re1 d1R Bd2 Rg8 Re3 Nc6 Re4 Rce8 Rd4 Nd8 Rd7 Nfe3+
R2rK3/1bBB2Rn/Nn6/1b2Q1Bp/3b2qr/2n2knQ/1Q1Bn1pP/R5b1 w - - 0 1 illegal: No possible last move, all moves rejected
4bR1B/Q1q4R/1rr1nbQ1/1rkp1bQ1/1pn2bnr/3KN3/1R1PN3/3N3Q w - - 0 1 illegal: No possible last move
1kq4Q/b2B1q1q/5n1n/1nRr1NN1/1Qb1R1rK/1Q1q2Np/2R1p2P/1n3R2 w - - 0 1 illegal: No possible last move, all moves rejected
R7/N1r3p1/4r1r1/1Q2N1Pn/B1nNNkq1/1Rnp1b2/QQn1rR2/b2q3K w - - 0 1 illegal: No possible last move
2b2N1k/1rp5/RN1q3N/q1BR1p1n/b1b3K1/2P1QnR1/Q2b3q/Qr2Rq2 w - - 0 1 illegal: No possible last move, all moves rejected
q3Q3/3pnR1q/bb1kpQ1N/5RnK/3r1NR1/3pR2b/1N1PQ2r/4nBr1 w - - 0 1 legal: proof: e4 b5 h4 f5 a4 fxe4 axb5 c5 b3 g5 Bb2 gxh4 Bd4 cxd4 Ke2 h5 f4 a5 c4 e6 g4 Ke7 c5 e3 Kf3 e2 c6 e1R c7 d3 g5 h3 g6 h4 Kg4 a4 f5 a3 b4 h2 g7 a2 f6+ Kd6 f7 h3 b6 Na6 b5 Rh7 b7 Rh5 b8R Rh8 b6 Ra7 b7 Nc5 Ne2 Qe7 Na3 Ra5 Nf4 Ne4 Qe2 Ra4 Rg1 h1Q Rg3 h2 Re3 Rd4 Nc4+ Kc5 Ra8 Ng5 b8Q Ba6 Nb2 Kd6 Qe8 Qe4 c8R h1B Rc2 Bg2 Rc5 Rh2 Rf5 Bh3+ Kh5 Qd8 Rc1 a1N Rc4 Ne7 g8N Nc2 Nh6 Rb1 Ra4 Ne1 Rb8 Bg7 f8Q Qa5 Rf7 Qh7 Rb5 Qd8 Rbf5 Qa8 Ng6 Be5 Qg7 Bg3 Nf4 Bf2 Qf6 Nc2 Bg2 Rg1 Bf1 Ne1 Ng2 Rd5 Rg4 Rd4 Nf4 Re4 Rf3 Bb6 Re3 Rd4
kq6/N1R1p2b/B2Nn1b1/pp2P1r1/4K1Bq/B3QNq1/n2Nrb2/Q1Q1n3 w - - 0 1 illegal: No proof kernel
4rB2/1B6/B1R1rpQ1/1r4Q1/b3r1Q1/p1rn1PRK/knn1p1BN/3qbR2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 g5 Nc3 gxh4 Na2 dxe4 axb5 Bd7 b6 Be6 b5 Bc8 Nb4 cxb4 g4 Kd7 c4 Ke6 d4 a5 c5 Kd5 g5 h5 b7 e5 c6 a4 c7 b3 f3 f6 Kf2 b2 Kg2 b1R g6 a3 b6 h3+ Kg3 h2 g7 h4+ Kg2 e3 Qd3 h3+ Kg3 e4 Bg2 e2 Qc2 e1R Qd3 e3 Qg6 Kc4 d5 Kb3 d6 Na6 b8Q Bd7 c8B Rh4 b7 Nc5 Ne2 Ba4 d7 Nh6 Qe5 Nd3 b8Q+ Bb4 Rg1 h1R Bb7 h2 Qc8 Re4 Kh3 Nf5 Ng3 Nd4 Nf1 Nb2 Qeg5 Nc2 g8B+ Re6 Bd2 e2 Be3 Rec1 Bc5 Be1 Bf8 Rb8 Ba6 Rb4 Bb7 Re4 Bh7 Qc7 d8R Qd6 Rd7 Qd1 Rf7 Ne3 Rg7 Rc3 Rc7 Nc2 Rc6 Rd3 Ne3 Rc3 Rf1 Rg1 Ng4 h1N Nh2 Nf2+ Kg3 Re8 Qcg4 Nfd3+ Kh3 Rc1 Rb1 Ka2 Bg8+ R8e6 Bf7 Rh1 Be8 Rb3 Bd7 Rb5 Bdc8 Na1 Ba6 Rc3 Bcb7 Nc2 Rc1 Rg1 Rb1 Nc4 Rb4 Ncb2 Rd4 Rh1 Rd7 Rg1 Rg7 Rh1 Q5h5 Kb3 Qf4 R6e5 Qe8 Rg1 Bb4 Na1 Bh1 Rg6 Bg2 Rh6 Rg3 Nc2 Qg4 Re6 Qeg6 Rh8 Be7 Rb8 Bf8 Rbe8 Qhg5 Ka2
1K3q2/R1pQ1Qp1/4R2n/pbrn1rN1/b6k/1BN4n/1N1QN1P1/b2nR1r1 w - - 0 1 illegal: No proof kernel
1bR4R/2R2Q2/r2rRBp1/1n1rQnPb/2K2q2/k2pbB1N/3BpQ2/qb6 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nd2 Nf6 Ndf3 Ng8 g5 h6 Ne5 h5 Ng4 hxg4 Ke2 e5 h4 Ke7 f4 Kd6 b4 a5 c4 a4 f5 e3 Kd3 e4+ Ke2 d3+ Ke1 d2+ Ke2 g3 b6 a3 h5 a2 f6 g2 b7 g6 h6 Ra6 h7 Nh6 f7 Qc7 b5 Kc5 b6 Kb4 c5 d5 c6 d4 Qe1 Bd6 f8B Nf5 Nh3 g1B Be7 Rd8 h8R Be6 Qf2 d1B+ Ke1 d3 Bf6 e2 Kd2 e1R Be2 Bdh2 Bf3 Rd5 Rb1+ Ka4 Kc3 a1Q+ Kc4 e3 Bd2 Ka3 Rc1 Qg3 c7 Nc6 b8Q Ncd4 c8R Nb5 b7 Qf4+ Be4 Rad6 Qc7 Bh5 b8Q e2 Qf7 Rf1 Rhe8 Ra6 Qe5 Bg3 Qfd4 Be3 Bf3 Rdd6+ Kc5 Bb3 Re6 Bc2 Kc4 Bb1 Qde4 Ba7 Q4d4 Bb8 Rc7 Bf2 Rc2 Be3 Rc8 Qg3 Qh4 Qh2 Qf2 Qf4+ Qd4 Rd1 Kc5 Qg3 Ng1 Bg4 Rhh8 Qf4 Nh3 Bh5 Rc4 Rc1 Rc3+ Ka2 Kb4 Rd5 R3c7 Rcc6 Qe4 Rcb6 Kc4 Rbd6 Qd4 Ka3 Qe4 Bd4 Qe5 Be3+
2q2qk1/Q7/Bpb2n1n/Qr4p1/R1R1Q3/R2q1bp1/1b1qNNPr/NQ2K3 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 Bb2 exf4 Bf6 d5 cxd5 h6 Bg5 hxg5 e4 c5 h4 f5 a4 Kf7 d4 b3 d6 b2 a5 f3 d5 g4 h5 g5 a6 f4 h6 c4 d7 c3 a7 c2 e5 c1Q d6 g3 e6+ Kg6 e7 Kf7 e8N Be7 h7 Bf6 Ne2 Nh6 Nd2 b1Q Ra4 Qd3 Nb3 Bb2 Na1 b6 Rh4 Qc5 Qb1 Bb7 Nf6 Qcc8 Ng4 Bc6 Nf2 Qf8 d8Q Nd7 Ra3 Nf6 d7 Kg7 Qe8 Qd4 d8Q Qdd6 Nd3 f2+ Kd2 f3 Rc4 Qd4 Qe4 Qdd7 Qc7 Kf7 Nf4 Kg7 Be2 f1B Ke1 Kf7 Nf2 Kg7 Bd3 Be2 Qce5 Bd1 Rca4 Kf7 Ba6 Qd2+ Kf1 Kg7 Ne2 Kf7 Ng4 f2 Qa5 Rb8 a8Q Rb7 Qae5 Rd7 Qa5 Rd5 Rc4 Rb5 Raa4 Rg8 h8R Rg7 Rh7 Kg8 Qa7 Rc7 Rd7 Rb7 Rd3 Rh7 Rda3 Rh8 Nc3 Bf3 Ne2 Nf5 Re3 Rh2 Rea3 Nh6 Nd4 Bd1 Ne5 Bh5 Ng4 Qdb4 Ke2 Qbd6 Kd1 f1Q+ Kd2 Qff4+ Ke1 Qdd8 Ne2 Qd3 Nf2 Bf3 Rac3 Qfe3 Rca3 Qed2+
Q2N2b1/2RKpQq1/1rB1pB1b/n1Qn3Q/1pR4b/1P4R1/B1qkr3/3q1q2 w - - 0 1 legal: proof: e4 d5 h4 g5 c4 Bh6 cxd5 Bg7 e5 Bf8 e6 fxe6 b3 gxh4 Na3 a5 Nc4 a4 Nb2 a3 Qg4 axb2 Qh5+ Kd7 Qd1 Ke8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 a4 b1Q g4 h5 d4+ Ke4 f4 b5 a5 b4 f5 c6 d6 h3 d5 h2 f6 h4 g5 h3 g6 Qa2 f7 Rh7 d7 Rh4 d6 Qe8 d8Q Bd7 a6 Rh5+ Bg5 Bh6 f8Q Qf7 g7 Be8 d7 Nf6 g8R Qg7 a7 Bf7 Qc8 Nd5 Bf6 Ke3 d8Q Re5 Qh5 Kd2 Rc1 Re2 Rc4 Qc2 Bg2 Bg5 Be4 Bh4 Qd6 Bg6 Qf7 Bh7 Rh8 Bg8 Nf3+ Ke3 Rd1 h1Q Rc1 h2 Ng5 Kd2 Rg1 Qf3 Rg3 h1Q Bh7 Qhd1 Qce8 Qcc3 Bb1 Qcc2 Ba2 Qff1 Qe5 Ne3 Kb6 c5 Kc7 Nc6 Kd7 Rb8 a8B Na5 Bc6 Rb6 Qa8 Nd5 Qf5 Bh7 Rc8 Bg8 Re4 c4 Rc7 c3 Rc4 Qd3 Qf2 c2 Qc5 c1B Qfg6 Rf2 Nf7 Re2 Nd8 Q3c2 Qgh7 Ke1 Q7g6 Bh6 Qf7 Kd2
1N1Qn2k/KRp2R1q/3Rb2p/4qn2/r1P3BB/R1QQq2r/n3p2b/5qB1 w - - 0 1 illegal: No possible last move
3rQ1R1/p7/r1NR1NR1/N1pr1bq1/2Nr1Q1n/3Q1npK/2PB1k2/qq2b3 w - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 d5 Nf3 dxe4 Bd3 f5 Be2 g3 Ng1 g2 Bg4 fxg4 b4 Kf7 d4 Kg6 h4 Kh5 f4 c5 Kf2 g5 Kg3 e5 d5 e3 b6 e2 b7 e1R f5 e4 f6 e3 d6 e2 b5 Nh6 d7 Nc6 b8N Be7 b6 Bb7 f7 Ne5 f8N Nf3 Nh7 Be4 Qd3 Rd1 b7 e1R Nd2 Rg8 Ra6 Rg6 Rd6 Nf5+ Kf2 Qh8 d8R Qa1 Rg8 Bf6 Ne2 Bc3 Nc6 Rd8 b8Q Rg1 Ned4 g3+ Ke2 Kg4 h5 N5h4 Nc4 Be1 h6 Rf1 Rh2 g1Q N6a5 g2 Nf6+ Kg3 h7 g4 h8Q Rg5 Rg6 Rd5 Qe8 Qh1 Bd2 g1Q Rh3+ Kg2 Ndc6 g3 Bb4 Qc1 Bc3 Qg5 Bd2 Qd4 Qb4 Qa1 Qa4 Rb1 Rg8 Rb6 Qb4 Ra6 Qa4 Ng6 Rh6 Ngh4 Rhg6 Qg1 Qaa3 Qb1 Qb4 Qd4 Qb8 Qda1 Qc7 Bf2 Qb8 Rd1 Qc7 Be1 Qb8 Qge5 Ke3 Qh5 Kf4 Kf2 Qb4 Qh6+ Kg4 Qg5+ Kh3 Rd4 Qb5 Bd5 Qf5 Be4 Qf4 Rd5 Bc1 R1d4 Bd2 Kf1 Qb3 Kf2 Qd3 Bf5+
7N/3Q3q/npbpbBpb/Q1Rr1n2/2BB4/2K1RR2/1P1Q1b2/1kq2Rrn w - - 0 1 illegal: No proof kernel
nn3R2/2Np4/Rp5q/QR1R1Nrb/NPr1n3/6nk/3B1pbb/2Kb1QQ1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 Bh3 exf4 Be6 a4 Bb3 axb3 Kd2 Ke7 e4 Ke6 a4 f5 h4 g5 c4 g4 h6 b2 h5 g3 c5 b6 a5 f3 e5 f4 c6 Kf5 a6 Kg4 h7 g2 e6 d3 h6 Qf6 a7 Ne7 c7 Bb7 c8R Nd5 e7 Rg8 h8Q Rg5 e8R Nc7 h7 Qh6 Qg7 Bd6 Ne2 g1N h8Q f2 Re5 f1B Ng3+ f3 Nf5 Ne2 Rb5 f2 Ra6 Bfg2 Rf8 Bbf3 Rh5 Bh2 Qf1 Ng3 Nc3 Be2 Na4 b1N+ Ke3 Bd1 Bd2 Nc3 Qhg8 Nce4 Qd5 Rg6+ Rg5+ Kh3 Qa1 Be2 Qg1 Bh5 Qaf1 Rc6 Qe5 Rc4 Qc5 Nc6 Qd5 Re8 a8N Re5 Qc5 Ne6 Nc7 Nb8 Bc1 d2 Qd5 d1B Bd2 Nf6+ Kd3 Rf4 Kc3 Nfe4+ Kb2 Rh4 Kc1 Rg4 Ne8 Nc7 Qa2 Na8 Nc7 Rc5+ Nc3 Re5 Qa5 Rd5 Na4 Rd4 Rg6 Rg5 Rd6 Be8 Rdd5 Beh5 Kb2 Rc4 Kb1 Nc3+ Kc1 Nce4+
R1B5/p3n3/p2K2r1/p1p4B/nbQ1qQr1/BqPQ1Br1/2N3n1/2NN1bk1 w - - 0 1 illegal: Other
2q1RB1Q/1N2n2B/pK2b3/4QQ1p/2Qbqn1R/p1n1b3/B1p4P/k1rr3R w - - 0 1 illegal: No possible last move
B3B1br/3np1b1/p2Br3/1n4b1/P3bp2/1BQR2pk/1bN1Q3/q1NN2QK w - - 0 1 illegal: No proof kernel
q1QQbkNQ/2N1r3/2qp2rq/p2R1pb1/2B4n/Nq1P1K2/N4Bnp/1B6 w - - 0 1 illegal: No possible last move
n1qRK1k1/BBNp2N1/b2B3n/b7/2n5/p2p1B1B/1bN4P/2rB2Q1 w - - 0 1 legal: proof: f4 h5 b4 c5 e4 b5 a4 e5 fxe5 f5 d4 cxd4 g4 hxg4 axb5 a5 Ra3 a4 exf5 Ra5 Rf3 gxf3 bxa5 Rh5 Bc4 Rh7 Bf1 Rh8 Kf2 Kf7 Kg3 g5 Kg4 a3 c4 f2 e6+ Kg7 e7 d3 e8B Nh6+ Kh5 g4 a6 g3 f6+ Kh7 c5 g2 c6 Nf5 a7 Ne3 a8B Bb7 f7 Qb6 c7 Nf5 c8B Bb4 Ne2 g1B Nbc3 Ne7 Bf4 Ng8 Nd4 Qd6 b6 Qc6 Nc2 Nh6 f8N+ Kg7 Nd5 Kg8 Bh3 f1N Bd6 Be1 Kg6 Bg3 Nc7 Rh7 Nfe6 Qc3 Ng7 Ba6 b7 Bb6 Rg1 Ne3 Rg2 Nc4 Qg1 Be5 Rf2 Nc6 b8B N6a5 Bf3 Rh8 Bcb7 Bf6 Ba7 Be5 Nb4 Qc1 Nc2 Bb2 Nb5 Bd8 Nc7 Nb6 Re2 Nac4 Re7 Ne5+ Kf6 Na8 Beh5 Nc4+ Kg6 Qf4 Re8+ Qf8 Bd1 Be5 Bhf3 Bb2 Nb5 Ba5 Nc7 Bc1 Rb8 Qe8+ Kf6 Qc8 Ke7 Bb2 Nce8 Qc6 Rd8 Qc8 Nc7+ Kh7 Bh1 Rf8 Bhc6 Rf1 Ke8 Kg8 Bcf3 Re1+ Bde2 Rb1 Bd1 Rc1
2N2K2/3r1r2/nn4Rb/q2R1QqR/2p1R1P1/1b2B1Rb/r5Bk/2qBR3 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a5 bxa5 Qd6 e4 Nc6 Na3 Qd8 Nc2 Nb8 Ne3 fxe3 Ke2 Ke7 Kf3 Kd6 Kf4 h5 d4 c5 g4 f5 b6 e2 e5+ Kd7 d6 Ke6 d5+ Kf7 b7 Kg6 d7 e1R a6 h3 e6 h2 d6 h4 e7 h3 e8R Nf6 a7 Re7 Qd3 Rg7 Ke5 Na6 Ke6 Nd5 b8R Nb6 Ne2 Qg5 Bg2 Rhh7 Be3 c4 Rhg1 h1Q Ng3 h2 Ne4 f4 Rae1 f3 Qf1 Bb7 d8R f2 d7 Bc6 Nd6 Ba4 Nc8 Bb3 Qd3+ Kh6 Qf5 f1B Bf3 Bg2 Bd1 Bh3 Rg3 Qf1 Rb7 h1Q Rc7 Qff4 Rc6 Qc7 Re7 Qg1 Rde8 Qh1 d8R Qf1 Rd5 Qff4 Bg1 Qc1 Be3 Qd8 Rec7 Rd7 Rcd6 Rhg7 Rcc5 Qc7 Rb5 Qc5 Rb4 Qa5 Rbb5 Rb8 a8B Rbb7 Rh1 Ra7 Re1 Qf4 Qc2 Rg5 Rd3 Qaa3 Bf2 Nb8 Rgf3 Rg8 Bd5 Kg5 Be3 Kh4 Re7 Qe5+ Kf7 Bh6 Rg6 Rg7+ Kf8 Qb4 Ba8 Ra2 Rdd6 Na6 Bc6 Bg2 Rg3 Qa5 Bcf3 Qh5 Rbg5 Bf1 Qf5 Bg2 Re4 Bf1 Rg2 Kh3 Rg3+ Kh2 Rd5 Bh3 Bg2 Qh4 Rh5 Qf6+ Ke8 Qg5 Kf8 Rgf7+
1BNnN1NR/b1RR4/1rp4n/K5k1/Bn2R3/2Pb4/r2r1R1r/qn1B4 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 f5 exf5 e5 dxe5 b5 a4 bxa4 Qd5 a3 Qxa5 Rxa5 b5 Ra8 Kd2 Kf7 Kc3 d5 g4 h5 f4 h3 b6 h4 b7 a2 g5 h2 g6+ Kg7 e6 Kh6 e7 d4+ Kb4 h3 f6 d3 f7 d2 g7 d1N c3 Nd7 b8R Ra7 f5+ Kh5 f6 Ne5 Be2+ Kg6 Bf4 Nh6 g8N Ba6 Ka5 Nb2 e8B Bc5 f8R+ Nef7 Ba4 Qd1 Rfc8 c6 Rb4 Nd8 f7 Nd3 Re4 Nb4 Bb8 Kg5 f8R Rb7 Rc7 Ba7 Rd7 Bd3 Nd2 Rb6 Rf2 Qe1 Rb1 a1N Bed1 Nac2 Nc4 Na3 Nd6 Rh7 Rbb2 Nb1 Ne8 Re7 Rc7 Rd7 Ne2 Rd6 Nd4 Rd7 Rhf1 h1R Nf5 h2 Nfd6 Rg1 Rbe2 h1R Rd2 Rh2 Nc8 Rgg2 Rf8 Rd4 Rdf2 Rd6 R2f7 Ra2 Rfd7 Rf6 Rh1 Rff2 Rf3 Rfd2 Rf2 Rg2 Rhh4 Rh2 Rh3 Nhf7 Rh8 Nh6 Bb3 Qc1 Bc2 Qb2 Bd1 Qa1
2qbn1r1/BN2Rb2/bq2P1BR/5p1Q/2BqB2B/6K1/b4RB1/kb5r w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 d4 c5 f4 exf4 a6 cxd4 a4 b4 Nc3 Nc6 a5 Ne5 Na4 Nc4 Nc5 Nb6 axb6 Qf6 Nb7 Qe7 Nd8 Qxd8 Kf2 Ke7 g4 Kd6 c4 Ke5 e4 f5 a7 h5 g6 d5 g5 h4 g7 d3 g6 Kd4 e5 Kc3 c5 d2 b7 f3 b8B h3 e6 d4 c6 d3 c7 b3 Kg3 h2 Bg2 b2 Ra2 b1B Nh3 f2 Qh5 d1B Nf4 f1B Rf2 d2 Nd3 Ba6 c8B Be7 Nc5 Nf6 g8R Qb6 g7 Bd8 Re8 Bfc4 g8B Bca2 Re7 Ne8 Bf7 Bg4 Bcb7 d1Q Bbd5 Qd4 Bg6 Rh7 Bd2+ Kb2 Bg5+ Ka1 Bc4 Rh8 Bh4 Rh6 Rd1 h1Q Nb7 Rh8 Rd3 Qc1 Rd1 Bf3 Rh1 Qcc3 Bc7 Rc8 a8B Qc1 Bb8 Be2 Qg5 Bh5 Ba7 Qc2 Bh7 Bg6 Qh5 Bf7 Bg6 Qc1 Na5 Rg8 Bae4 Rc7 Nb7 Rd7 Bb5 Qc8 Bc4 Rd5 Rh2 Rb5 Rh3 Rb2 Rh2 Re2 Rh3 Re1 Bg5 Nf6 Qg4 Rf1 Rh6 Re1 Qh5 Rh1 Bh4 Ne8
q3q1r1/2nP3R/3RBrb1/RQKRqp2/1R5q/1q2N3/5R2/B2bkBb1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 f4 d5 a4 b5 c4 e5 cxd5 exf4 a6 b4 a5 Nd7 Na3 Nb6 axb6 Bg4 Nb5 Bd7 Na7 Bg4 Nc8 Bxc8 Kf2 Kd7 e4 Kd6 g4 Ke5 b7 Kd4 b8R c5 d3 Kc3 d4 h5 d6 b3 d7 b2 a7 b1B g5 c4 d5 f3 Ke3 f2 d6 h3 g6 h2 e5 h4 e6 h3 e7 Qe8 d8R Bg4 g7 Bg6 d7 f5 Rb4 Rh6 Ra2 Nf6 Qa4 Bd1 Nf3 Rb8 Rg1 h1Q a8R h2 g8B Qg2 Qa6 h1Q Nd2 Qh4 Qb5 Qgh2 Rg4 Qe5+ Re4 Rc8 Bb2+ Kc2 R8a5 c3 Nc4 Ra8 Bg2 f1Q Be6 Qfh1 Ba1+ Kc1 Rf2 c2 Bf1 Nd5+ Kd3 Nc7 Rd4 Rc8 Ne3 Qa8 Kc4 Bg7 Rff4 Rb8 Rd6 Bf8 Nd5 Kd2 Ne3+ Ke1 Rd5 Bg7 Kc5 Bh8 Rf2 c1Q+ Rc2 Qb1 Rf2 Qb3 Rc8 Qf7 e8R Bg7 Rh8 Qe8 Rh7 Bf6 Ra6 Bg5 Rd8 Bf4 Rd6 Bh2 Ra4 Bg1 Ra5 Qf7 Rg8 Rf8 Rgg7 Qfe8 Re7 Rg8 Reg7 Bgh5 Rg4 Rf6 Rb4 Bg6
qRN3R1/P1Bn4/q2KN1R1/pN2p2R/1B4p1/1br2q2/k1BRr2b/n7 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 d4 b4 d3 b5 Nh6 cxd3 Nf7 d4 Nh6 d5 Ng8 a4 c5 d4 cxd4 a5 Qd7 b6 Qc7 Qd2 axb6 a6 Qd8 Qa5 bxa5 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 Kb3 f4 g5 a7 b5 h6 b4 d6 e6 f6 d3 f5 d2 h7 d1Q d7 Bg7 h5 Qf8 d8R Qe1+ Ne2 Qe7 h6 Ba6 Na3 Qd1 Nb5 Qe8 Ng3 Qg6 Bf4 Ne7 Rd2 Re8 h8R Nec6+ Kd6 Qf3 f7 Nd7 f8B Rac8 f6 Nd4 h7 Nc2 f7 Rc3 Bd3 g4 Rad1 Bd4 Rh5 Bg1 Nf5 Bh2 Rg8 Na1 Bc2+ Ka2 h8R b3 Ne7 b2 Nc8 b1Q R8h6 Qb3 Rb1 Qa8 Bg3 Qf6 Rhg6 Qc4 Be7 Qff3 f8N Qcf1 Na3 Bd3 Rb8 Bc4 Nb5 Bb3 Bf6 Re3 Bc3 Re2 Bb4 e5 Bf2 Re7 Bb6 Re8 Ne6 Rd8 Ne7 Rc8 Bd8 Rc3 Nc8 Q1f2 Bc7 Qb6+ Ke7 Qbb7 Kd6 Qa6+
R1n2k2/1Bb1R1r1/6qP/1Qpr2p1/pRR3n1/R2r2B1/1p4N1/nB2K1R1 w - - 0 1 legal: proof: e4 d5 b4 f5 exf5 h5 c4 a6 cxd5 Kd7 g4 hxg4 d6 Ke8 a4 Kd7 a5 Rh4 b5 axb5 Nc3 Rh8 Na4 Ke8 d4 bxa4 d5 c5 Bc4 Bd7 Bf1 Bc6 dxc6 Rh7 Bb5 Rh6 Bf1 Rh8 f4 b5 h4 g5 a6 e5 a7 g3 d7+ Kf7 c7 g2 c8B b4 f6 b3 h5 e4 h6 b2 f5 e3 Qe2 Rh7 Bb7 Qb6 d8R Qa6 Rd7+ Be7 Ra3 Qd3 Nf3 g1R Nh4 Rg2 Rg1 Kf8 f7 Bd8 Re7 Rg3 Ng2 Nf6 Bd2 Qc2 Qb5 e2 Bf4 Nc6 Bc7 Rb8 a8R Rd3 Bg3 Rg7 Bf4 Rc3 Qb3 Na7 Qb5 Bc7 Bg3 Rd8 Kf2 e1N+ Be2 Qe4 Bd3 Nc8 Bb1 Nc2 Kf1 Na1 Kf2 Qh4 Ke1 Rd7 Re4 Rcd3 Rb4 Ke7 f8R Ng8 Rf7+ Ke8 f6 Qh5 Re7+ Kf8 f7 R7d5 Ree4 Qg6 Rec4 Ke7 f8R Nf6 Re8+ Kf7 Re5 Ng4 Re7+ Kf8
1nK5/q1NBB3/5r2/N1qq1r1B/1QB1bqP1/1b1R2n1/bN1B1n2/3n1Bk1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 f4 g5 b4 gxf4 a3 e5 Ra2 Bd6 a4 b5 axb5 Bc7 Ra6 f3 Rf6 Bd6 Rf4 exf4 Ba3 Be7 Bc1 Bh4+ Kd2 Bg3 hxg3 Qc7 Ke1 Qd8 Bg2 Ke7 Qd2 Nc6 Kf2 Kf6 c4 Kg5 e4 a5 b6 f5 c5 d5 e5 h5 b5 a4 e6 d3 b7 a3 b8B h4 b6 d4 b7 h3 e7 a2 e8B a1Q Bg6 h2 Nc3 Rh5 Nd1 Nf6 Qc3 d2 Bh3 d3 Qb4 Qa4 Nb2 d1B Ne2 d2 Nc3 Ra6 Bd6 Be6 b8N Ba2 Nb5 Bdb3 Rd1 h1B Be7 Qg8 Bg2 Qd5 Nc7 Qa5 Bh3 Qb6 Be8 Qa7 Bf7 Rh7 Bh5 Rf7 Nd7 Nb8 Nb6 Rf8 N6c4 Bg2 Na5 Rf7 Kg1 f2+ Kh2 Bh1 Bg2 f1Q Bh3 f3 Bg2 f4 Bh3 Kh6 g5+ Kh7 g6+ Kh6 g7 Kg5 c6 f2 g4 Kh4 Ne8 f3 c7 Qfb5 c8B f1Q Bg2 f2 Nc7 Qbc5 Bf5 Re6 Bh3 Re5 Be6 Rf5 g8B Qf3 Bc4 Qfd5 Bg2 Rf8 Be6 Rf7 Bf8 Ne4 Be7+ R7f6 Bc8 Kg5 Kh3 Kf4 Be6 Ke3 Kh4 Rf4 Bc8 Qfd3 Bf5 f1N Bh3 Nfg3 Bf1 Kf2 Be6 Nd6 Bf5 Q3e4 Kg5 Rf7 Kg6 Rf6+ Kg7 Kg1 Bc8 Nf7 Kf8 Ne5+ Ke8 R4f5 Bd7 Nd3 Kd8 Nf2 Kc8 Qed4 Re1 d1N Re3 Q4e4 Rd3 Qf4 Bd2 Be4
rr5r/KRB3bk/Q6n/N2r1n2/1rRP3R/1q2BBBn/6br/1n1BB3 w - - 0 1 illegal: No possible last move
r2NQ2b/Nbk3q1/1r1n2R1/4r2K/1q3RBN/R2Nq2r/2Pq4/Nr1q1N2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Nc6 Ke1 Nce7 Bg5 f4 Ra1 Nf5 gxf5 hxg5 Kf2 d5 e4 Kd7 h4 a5 b4 g6 b6 g4 h5 g5 b5 d3 b7 d2 b8N+ Kd6 h6 a4 b6 d4 h7 d3 b7 a3 e5+ Kc7 f6 a2 f7 Nh6 e6 Be7 f8R Nf7 Nc6 Nd6 b8N Bf6 e7 Bb7 Nd7 Qb8 Qe1 d1Q Nd8 d2 Bh3 Bc3 Ne2 g3+ Kg1 g2 Kh2 g1R Nd4 f2 Ne5 f1Q Nb3 f3 Bg4 f2 Nd3 Qfe2 Kh3 f1R Rf4 Ra5 Rh2 Re5 Rg2 Qe3+ Rg3 Rf3 Qe2 Rg8 h8N Rg6 Qe1 Rge6 Ng6 Qde2 Nh4 d1Q N1d2 Bb2 Rb1 a1R Nf1 Ra8 Ra1 Q2d2 Ra3 Bc3 Na1 Rf6 Bc8 Bb2 Kg4 Rh1 Kh5 g4+ Bf5 Rg6 Rg1 g3 Qe2 g2 Qe1 Rfh3+ Qe2 Re4 Bg4 Bh8 Qe1 Rge6 Qe2 Rb4 Qe1 Rb6 e8N+ Kc8 Nc7 Kd7 Rf5 Re5 Nb5 Kc8 Na7+ Kc7 Nf7 Qf8 Nd8 Qg7 Qe2 Qd4 Qe4 Qb2 Qa4 Qbb4 Qe8 R1h2 Rh1 g1Q Rg5 Rhe2 Rh2 Qge3 Rf2 Re1 Rf6 Q1e2 Rgf5 Rb1 Rg6 Re7 Rf8 Qed1 Rf4 Re5+
R1rb1RBn/8/2n2rp1/2K1k1B1/4n2q/3B1B2/n2qrnPR/bNQ2BB1 w - - 0 1 legal: proof: d4 e5 a4 exd4 h4 Qxh4 e4 b5 axb5 c5 Nd2 Qh2 f3 Bb7 e5 Be4 Nb3 d3 Nd4 cxd4 fxe4 Bd6 Qh5 Ba3 Qd1 Bf8 Kf2 Ke7 b4 Ke6 c4 h5 b6 f5 b5 d5 c5 a5 b7 f4 b6 f3 c6 a4 c7 h4 Qd2 g6 Qc2 d2 Qd1 a3 Qe2 d1Q Be3 d3 Bg5 h3 Ke3 d2 Kd4 a2 Qe3 f2 Ne2 Be7 Nc3 Bd8 Nb1 Nc6+ Kc5 d4 b8R d3 b7 Nh6 Qe1 Qe2 Qc1 d1N Rc8 d2 b8B Rf8 Ba7 Nf7 Rb8 Qg3 Rh2 Nh8 Bb6 Ra7 c8B+ Rd7 Ba6 Nc3 Bd3 d1N Rc8 Re7 Ra8 Qd2 Ba7 Kf7 e6+ Kg7 e5 Qh4 Rc8 Ree8 e7 Ne4+ Kc4 Rf6 e6 Ndc3 Ra8 Ref8 e8B Rg8 e7 Rgf8 Bfe2 f1R Bg1 R1f2 Bf1 Re2 Bf7 Rg8 e8B Rf8 Rh1 h2 Bd7 Re8 Bg8 Ref8 Bg4 Re8 Na3 Ref8 Rb1 a1B Bf3 Na2 Rbb8 Re8 Nb1 Ref8 Bh7 Kf7 Rc8 Ke6 Bg8+ Ke5 Rc7 Re8 Rf7 Bc7 Rf8 Rc8 Bb6 Nec3+ Kc5 Bd8 Rg1 h1N Ba7 Ng3 Rh1 Nd1 Rh2 Ne4+ Kc4 Qh3 Bg1 Qh4 Kb5 Ndf2 Kc4 Nd6+ Kc5 Nde4+
q2b1Qrn/r2P1qR1/NKb2N2/3N2p1/1BNN1R1b/4r1k1/n4R2/N2nb3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 Kd6 d4 g5 Kd2 a5 Ke3 f5 h5 c5 b6 c4 b7 c3 b5 a4 h6 c2 h7 a3 b6 a2 Nd2 Bh6 Nc4+ Kd7 d6 Ke6 d7 Bf8 d5+ Kf6 Kd4 f4 e4 f3 e5+ Kf5 e6 Kg4 d6 Qe7 Kc5 Bg7 d8R Bc3 Rd7 Nc6 b8N Nh6 b7 Ra7 Qf1 f2 Na6 Nb4 b8N Rg8 h8N Be1 Kb6 Nf7 Ne2 g1B Nc5 g2 Ng6 Bb7 Bd2 c1R Nd4 Nh8 Nf4 Rc3 Nba6 Qf7 e7 Bc6 e8N Kg3 Nd5 Re3 Nef6 Bh2 Ncb3 g1B Rc1 a1Q Rc2 Qa3 Rc7 Na2 Na1 Qa4 Bb4 Qa3 Qd3 f1N Qf5 Bgf2 d7 Bhg1 Rh7 Bh2 Rg7 Bhg1 Ba5 Qaf8 Re2 Qa8 Bb4 Kh4 Ne8 Bh2 Bc3 Re7 Bb4 Qf6 Rc8 Bc7+ Kc5 Ne3 Rd2 Bfg3 Rf2 Nd1 Rd8 Re3 Qf3 Bcd6+ Kb6 Kh3 Qf4 Bh4 Qf5+ Kg3 Rc8 Bb5 Rc6 Qg6 Qf8 Be7 Rcf6 Qf7 R6f4 Bc6 Nef6 Bd8+
1rB2N1K/q2Pr2N/1NBnB1Bp/nB2B3/6rR/Q2qn2r/3r3n/1kb5 w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 a5 b4 axb4 a4 e5 f4 gxf4 h3 Be6 g5 Bg4 Ra3 e4 Rf3 exf3 hxg4 Qd6 Bh3 Qf6 Bf1 Qd8 Kf2 Ke7 e4 Kd6 d4 c5 a5 b5 a6 f5 g6 b3 g7 b4 g5 b2 g6 b3 a7 c4 Bg2 c3 Bh3 c2 Na3 b1Q Bb2 c1R Qd3 Nh6 g8B Qc7 g7 Nc6 Be6 Rc4 g8B Rd8 a8B Qa7 Bgf7 Na5 Bg6 Nf7 Bc6 Bh6 Qe3 Qd3 e5+ Ke7 Bc8 Nd6 e6 Kf6 e7 Kg5 Bc3 b2 e8B b1R Bb5 Rc7 Nc4 Re7 Bec6 Rd1 Be6 Rb8 Nb6 Kf6 Bg4 Rhg8 Nh3 Rd2+ Qe2 Rh8 Ng5 Rhg8 Rh4 Rh8 Kf1 f2 Kg2 f3+ Kg3 f1N+ Kf4 f2 Qf3 Nh2 Qe3 f1N Bh3 Kg7 Ke5 f4 Bhf5 f3 Bg4 Ne8 d6 f2 d7 Nd6 d8N Rg8 Qf3 Ne3 d5 f1R Qh3 Rf3 B4f5 Kf8 Kf6 Rgg7 Be5 Rg8 Qg4 Rh3 Qa4 Rgg7 Qa3 Rg8 Ngf7 Bf4 Ng5 h6 Bc8 Rgg7 Nh7+ Kg8 Bge8 Rg4 Ne6 Kh8 Nef8 Bg5+ Kg6+ Kg8 Kh5 Bf4 Beg6 Bg5 Bg3 Kg7 Bfe6 Bf4 Ng5 Kf6 Ngh7+ Ke5 Bf2 Kd4 Bge8 Be5 Bg3 Ndf5 d6 Bh8 d7 Nd6 B8f7 Nb3 Bf4 Kc3 Be8 Bd4 Be5 Kc2 B8f7 Bb2 Be8 Re4 Kg6 Kb1 Kf6 Na5 Bg6 Nf7 Kg7 Bc1 Kg8 Nd6 Kh8 Rg4
Bn2BQR1/3Nnqp1/1KPq1B2/r6q/1Br2n2/B1B1qr2/3Nk3/3rbN2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 b4 f5 Bh6 Bb7 Ra6 Be4 Bc1 h5 Rg6 f4 Rg5 Bf5 gxf5 Bd6 Rg2 Bf8 Rg4 hxg4 Kf2 Ke7 c4 Kd6 h4 Ke5 e4 a5 h5 d5 h6 d3 b6 Kd4 c5 a4 b5 d2 f6 a3 b7 a2 e5 a1Q h7 Ne7 e6 Qa3 b6 Qb4 f7 Qb5 Ne2+ Kd3 Ng3+ Kd4 Bg2 Kd3 Nf1 d4 Ba3 Rg8 h8N Qd6 Ng6 Qe8 Rh8 Ra5 Qa4 d1Q Nbd2 Qb3 Qb4 Qbd5 Bh1 Qh5 Bg2 Nf5 e7 g3+ Kg1 Ke2 Ne5 d3 Nd7 Qe5 Bh1 f2+ Kg2 Qd8 e8B Be7 f8B Bh4 Be7 Qe3 Bf6 Ne7 Bc3 Rf8 Rg8 Qc7 Bf6 Qd6 Bc3 Nbc6 b8B f3+ Kh3 g2 b7 g1R Ba7 Rf4 b8B Rc4 Bc7 Rgg4 Bd8 Rg3+ Kh2 Nb8 Bab6 Ng6 Bdf6 Nf4 Bbd8 Qh7 Bde7 Qh5 Ne4 d2 Bf8 d1N Ned2 Nb2 Bg2 Nbd3 Bh1 Rg1 B8e7 Ne5 Bg2 Bg5+ Kg3 Neg6 Bf8 Qh1 Kg4 Qh5+ Kf5 Bh4+ Bg5 Rh1 Nh2 Qdd4 Bd6 f1R Be7 f2 Ba8 Nd5 c6 Rd1 Qd6 f1Q+ Qf4 Be1 Beb4 Qed3+ Ke6 Q4e3+ Kd6 Nge7 Qf8 Qff7 Nhf1 Nf4+ Kc7 Rh3 Bgf6 Rf3 Kb7 Qdd4 Kc7 Qd6+ Kb7 Qee6 Kb6 Qe3+
1k2N1n1/rN1nb3/r2PqRbr/K1NQ2Bq/N6N/5pp1/4N3/b1n2R1R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kc3 c5 b4 Kc7 h4 a5 e4 f5 d6+ Kb7 d7 a4 b6 g3 d5 f3 e5 a3 e6 f4 e7 a2 e8N g2 d6 f2 h5 c4 b5 f3 Kb4 g4 h6 g3 h7 c3 Ne2 g1N Bg5 c2 Nbc3 c1R Na4 Qc7 Qd5+ Rc6 Rc1 Ra7 d8N+ Ka8 Nb7 a1B Re1 Be7 Rb1 Na6+ Ka5 Bf5 Rc1 Qd7 Re1 Nf6 Rc1 Qe6 Re1 Rf8 h8N Ng8 Ng6 Kb8 Nh4 Rf6 Nd8 Rc1 Nf4 Nh3 b7 Rc6 Qd4 Rh6 Nhg2 Bg6 Bd3 f1Q Qe4 Bf8 Qd5 Nf2 Ne2 Qg1 Rb1 Qh2 Rbf1 Qh5 Bc4 Nd3 Nh4 Ra8 Qe5 Ka7 b8N Nf4 Nd7 Nc5 Qd4 Rb8 b6+ Ka8 Qe5 Rc7 Ba6 Nfd3 b7+ Ka7 Qe4 Nc1 Qf5 Ra8 Qd5 Rc6 b8R Be7 Rb4 Rb6 Nb7 N5d3 Nd4 Ne5 Ndc5 Kb8 Ne2 Nd7 Rf4 Ra7 Rf6 Rbxa6+
N1q2NB1/r7/3N1pQq/B3nr2/RnK1n1NB/N3Nnpb/Pq5b/k7 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 Qd7 b4 axb4 f5 Qd8 f6 exf6 g4 h5 g5 Rh6 g6 Bd7 Na3 Bc8 gxf7+ Kd7 Rb1 Rh7 Rb3 Rh6 Rg3 Rh8 Rg4 hxg4 d4 Kd6 Kd2 b5 Kd3 g5 e4 c5 h4 b3 h5 g3 h6 b4 h7 g2 Nh3 g1N Nf4 b2 Qh5 b1Q+ Kc4 g4 Ng2 b3 Bg5 b2 Bh4 Nc6 Qg6 Nf3 Ne3 Nge7 Rh2 Bh6 f8N Nb4 Bg2 Rg8 h8N Ra7 Bh1 Nec6 e5+ Ke7 e6 Kd6 e7 Bf4 Rf2 Bh2 Rc2 g3 e8N+ Ke7 Bg2 Bh3 Nd6 Qc8 Nhf7 Qh1 Rc3 b1N Nh6 Qc1 Rc2 Nc3 Nhg4 Qb2 Rf2 Ne4 Bh1 Nfg5 Rf4 Rh8 Bf3 Rh5 Bd1 Nf3 Bb3 Ra8 Ne6 Kd7 Nc7 Ra7 Na8 Rg5 Nb7 Ke7 d6+ Ke6 d7 Rd5 d8B Rf5 Kb5+ c4+ d5+ Kd7 Bb6 c3 Ba5 c2 Kc4 Ke7 d6+ Ke6 d7 c1Q+ Nac2 Qd2 Nd6 Qdc1 Nf2 Ke5 d8N Qd2 Ne6 Qdc1 Nf8 Qh1 Na3 Qhc1+ Kb5 Kd4+ Bd5 Kc3 Nfg4 Qbb1 Qh7 Kb2 Qg6 Qd2 Kc4 Ka1 Bg8 Qbb2 Nd1 Nc3 Re4 Qh6 Nde3 Rh7 Re7 Ne4 Ra7 Rd7 Bb6 Rh7 Ra4 Ra7 Ba5 Nce5+
3N3K/B2b1nR1/4pbq1/B2qNB2/3rN1Pn/5r1p/RnR1r1Bk/rB6 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 fxe4 b5 b6 Qd2 Bg7 Qb4 axb4 a5 Bh6 axb6 Bf8 Ke2 Kf7 g4 Ke6 c4 Ke5 f4+ Ke6 b7 h5 f5+ Ke5 b6 d5 g6 d3+ Ke3 b3 f6 h4 c5 b2 g7 h3 f7 d2 c6 d1R c7 Rd2 Nc3 b1Q Bg2 Nd7 b8B Nh6 g8B Bg7 f8R Nf7 b7 Rd4 Bd2 Bf6 Ba7 Rh7 Re8 Nf8 b8N Ng6 Rh2 Bd7 c8B Nh4 Ra2 Rh5 Be1 Rf5 Bh7 Rf4 Rg8 Rf3+ Ke2 Kf4 Nc6 e3 Ne4 Qa5 Rg7 Qc5 Ba5 e6 Bb7 Qd6 Nd8 Qe5 Bf5 Qd3+ Ke1 e2 Ba6 Qc2 Bd3 Qb1+ Kd2 e1R Kc3 Re2 Nd6 Kg3 Rc2 Rff2 Nf3 Qe4 Ne5 Rf3 Rh1 Qb5 Ra1 Kh2 Raa2 Qb7 Bh7 Qg6 Ne4 Qh6 Bf5 Qg6 Ng3 Rdf4 Ne4 d4+ Kc4 Qb3+ Kc5 Qb7 Rd2 Qb3 Bb1 d3 Rdc2 d2 Kd4 d1N Kc5 Ng5 Kd6 Nb2 Nd3 Be5+ Ke7 Bf6+ Kf8 Nf7 Kg8 Qb7 Ne5 Qd5 Nd6 Rb4 Ne4 Rd4 Bb8 Na4 Ra1 Nb2 Bb4 Ra5 Ba7 Nd6 Kh8 Rb5 Ra6 Ra5 Bc3 Ra1 Ra2 Ra4 Bd2 Rd4 Ba5 Nf7+
4r2b/2q1R2p/n1Qr3b/1R3RRn/q1n1Np2/RR2PB2/K2BnB1q/3k4 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Nd2 Bh6 Ndf3 gxf3 g4 Bb7 h3 Bd5 g5 Be6 Bg2 Bg7 Bf1 Bg4 hxg4 Bf8 Kd2 Ke7 b4 Kd6 c4 Ke5 Kc2 Ke4 Kb1 f5 b6 d5 b5 a5 c5 f2 c6 d3 b7 a4 b6 d2 e3 d4 c7 d3 c8R f3 g6 a3 g5 Qd7 g7 Qc7 g6 Ra6 Rh5 Nf6 g8R Bh6 Be2 f1Q g7 f2 Rgf8 Qg2 g8R f1N Nh3 Ng3 Qc2 d1N Bd2 Qh2 Ka2 Nb2 Rgg5 Nc4 Rf7 Re8 Re7+ Ne5 Bd1 Ne2 Nf2+ Kf3 Ne4 Nc4 Rb1 Rg8 Rb5 Re8 Bb4 d2 Qc1 Nbd7 b8B Nc5 b7 Rd6 Ba5 Na6 Rb3 Nb2 Qc6 Nc4 Rd8 Re6 Rdd3 Rd6 Nc3+ Kf2 Ne4+ Ke1 Rb5 Ng3 Bf3 Ne2 Rc3 d1Q Bb4 Qa4 Rb3+ Kd1 Bd2 Qb6 Bc7 Qba5 b8R f4 Bd8 Qb6 Ra8 Qb7 Rgf5 Qc7 Rhg5 Nh5 Ra7 Qc8 B8a5 Qc7 Be1 Nb2 Bf2 Nc4 Ka1 a2 Bd2 Na3 Kb2 a1B+ Ka2 Bh8 Ra8 Qb4 Ra7 Nc4 Ra8 Nb8 Raa5 Na6 Raa3 Qa4
4n3/2QpR1Bk/2n1B2p/N1bRbn1r/2Bq1B1P/qB1B2K1/4r2n/5R1q w - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Nd2 e4 Ndf3 exf3 Ra4 Qf6 Ra1 Qd8 Kf2 f5 c4 Kf7 h4 Kg7 e4 a5 b4 d3 g4 a4 g5 a3 g6 h6 e5 d2 c5 a2 c6 Qg5 b6 Ra6 b5 Ba3 c7 Bd6 b7 Bf8 e6 Ba3 b6 Nf6 e7 Re8 Bc4 Nc6 b8R Ra5 Bb2 Ba6 Bb3 Bd3 Qc2 d1Q Ne2 Bc5+ Nd4 Rb5 Rb1 a1B c8B Qg4 b7 Qc1 Bc3 Qa3 Rhe1 Kh8 g7+ Kh7 Ra8 Bb2 b8B Ba1 Re2 Ra5 Kf1 f2 Ba6 Bb2 Be6 Ba1 Nb3 Bb2 Be1 Be5 Bac4 Rb5 Bc3 Ra5 Qd2 Rb5 Qe3 Ra5 Qg3 Rb5 Kg2 f1N Bb2 Nd2 Ree1 Nde4 Na5 f3+ Kh2 f2 g8B+ Kg6 Re2 f4 Rf1 f3 Bc7 Nd6 Bb3 Reb8 e8B+ Kg7 Be8f7 Re8 Bg6 Qd4 Rd2 Re7 Re8 Kh8 Bec4 Re6 Re7 Nfe8 B8f7 Kg7 Qf4 Kh8 Kg3 Kg7 Rb1 f1Q Re1 Qh1 Rf1 f2 Rdd1 Be2 Bb1 Bd3 Bb8 Kh7 Bc3 Bh8 Bc7 Re2 Bfe6+ Bg7 Bb8 Ba7 Qc1 Rh5 Ba1 Bc5 Rd2 Nf7 Bf4 Be5 Bb2 Qde4 Ba6 Bc4 Bd3 Nd8 Ba1 Bh8 Bg5 Bd6+ Bf4 Bd4 Re1 f1N+ Kg4 Bb4 Bb1 Nh2+ Kg3 Bdc3 Rd5 Bd3 Qc2 Bd4 Qc6 Bbc5 Qc7 Nc6 Rf1 Bh8 Bf6 Qd4 Bac4 Bg7 B6g5 Be5 Bf6 Bed6 Bh8 Be5 Bg7 Nfd6 Bbxd3+ Nf5+
5R1N/N5Nr/2RrbK1Q/1B2N2p/pNbP2nN/kbb5/p6n/2b2Rq1 w - - 0 1 legal: proof: b4 b5 e4 c5 c4 f5 exf5 g6 h4 g5 a4 bxa4 b5 gxh4 Ba3 d5 Bb4 cxb4 cxd5 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 h5 d4+ Kb6 g4 Ka5 f4 e6 b6 h3 d6 h2 f6 b3 f7 Kb4 d7 a5 g5 b2 b7 a3 f5 a2 f6 a4 g6 Bg7 f8R Ra7 Na3 b1B Nb5 Bd3 Nf3 Bh6 f7 Nf6 g7 Ra6 g8N Rd6 Na7 Bc1 Nh4 Ka3 Qd2 Rh7 Ne7 Bc4 Qh6 Qa5+ Nd5 Qe1+ Be2 Qg1 d8N Bb3 Bb5 Ng4+ Ke4 e5 Nb4 Bd7 Ne6 Nc6 Kf5 e4 b8N Nce5 N8c6 Nf3 Ne5 e3 Rb1 e2 Rb2 e1B Rc2 Qg3 Rc6 Bc3 Rf1 h1B Kg6 Nfh2 Kf5 Rd5 Kg6 Qg1 Ng7 Ne3+ Kf6 Be6 Rb8 Be4 f8N Bd3 Nfg6 Rd6 Rf8 Bdc4 Nh8 Neg4+
3bnN2/1pr4R/1bN2K2/2q1PR2/p5BN/1RnRr1p1/k1B2R2/2nnB1r1 w - - 0 1 illegal: No possible last move
3b2R1/bkn2NrR/N4B2/6Pp/1qp1N1R1/B3qK1B/1bp5/rR1b1nR1 w - - 0 1 illegal: No possible last move
q1BRRN1b/6R1/q1NpNBp1/3k2q1/K1bp4/5r1N/2Nnn1P1/n4bB1 w - - 0 1 legal: proof: f4 b5 d4 c5 h4 cxd4 a4 a5 axb5 e5 h5 exf4 h6 f6 Ra3 g6 Ra4 Ra6 Ra1 Re6 Nd2 Re7 Nb1 Rg7 hxg7 Bb7 Rh3 Ba6 Rh1 Bc8 Kd2 Ke7 b4 Ke6 e4 h5 c4 h4 Kc2 f3 Kb3 h3 b6 h2 c5 f5 c6 f2 b5 f4 c7 f3 b7 Be7 b6 Rh3 e5 Qf8 Be3 Qf4 Na3 Qg4 Qd3 Qg5 Qa6 Nf6 g8N Nc6 b8B Ne4 b7 Nd2+ Ka4 Kd5 e6 Bf6 e7 Ne5 e8N Bh8 Ng7 Nd3 Ne6 Nc1 Nc2 Ne2 Re1 d6 Ne7+ Ke4 Nc6 Kd5 Ba7 Bd7 c8N Be8 b8R Bf7 Bb6 Rg3 Ka3 a4 Bd8 Rh3 Kb4 a3 Ka4 a2 Bf6 a1N Rb7 Bg8 Rg7 Rg3 Nh3 Bf7 Rg1 h1Q Rb1 Bg8 Rbb7 Bf7 Rd7 Qh2 Rh1 Bg8 Rd8 Bf7 Ng1 Qhh4 Nh3 Qe4 Ne1 Qb1 Nc2 Qb6 Rg1 Nc1 Bd3 f1B Bf5 Ne2 Rh1 Bg8 Bg1 f2 Re8 Rf3 Rd8 Qb8 Bg4 Qa8 Nb6+ Ke4 Nd7 Bf7 Nc7 Bc4 Ne6 Kd5 Ndf8 Nc1 Ne1 Ndb3 Bh2 Bfd3 Nc5 f1Q Bc8 Nd2 Nc2 Qd1 Re1 Bf1 Re6 Ne2 Bg1 Qb1 Ree8 Qb6 Nce6 Qbxa6+
7n/pN4pr/bnKnN3/1B1NP1q1/5R2/B3NnNQ/p3q1B1/b2b1Nk1 w - - 0 1 legal: proof: d4 b5 c4 d5 cxd5 h5 a4 bxa4 g4 hxg4 d6 e6 d5 e5 b4 Kd7 e4 Rh6 f4 Rh7 Ra3 Ke8 Rd3 Rh3 Rd4 exd4 e5 Rh8 e6 Na6 Ke2 Rb8 Kd2 Rh6 Ke1 Rh8 Bh3 Rb5 Kd2 Rc5 Bg2 Rc3 Bf1 Re3 Na3 Nc5 Nb1 Re5 fxe5 Na6 Ke2 Nb8 Ke1 Na6 Kf2 c5 h4 f5 h5 f4 d7+ Ke7 b5 f3 b6 c4 h6 a3 b7 a2 b8N d3 Ke3 c3 Kd4 c2 h7 d2 Nc3 f2 Nce2 g3 Nf3 g2 Nh2 g1N Bg2 f1N Ng3 Nc7 Kc5 Na8 Ba3 Ba6 Qf3 Ne3 Nhf1 d1B Rh4 Nb6 Rf4 Nec4 Kc6+ Nd6 Qh5 Qe8 Qh3 Qh5 d8N Qe2 Nb7 Nf3 Nd7 Nh6 Nf6 Nf7 Ng4 c1Q+ Rc4 Qg5 Nge3 Rg8 Rf4 Nh8 Rd4 Ke8 e7 Kf7 Rf4+ Kg6 e8B+ Ndf7 Ra4 Bc5 d6 Bd4 d7 Ba1 d8N Rf8 Bd7 Nd6 Ne6 Rf4 Rd4 Rh4 Rf4 Nhf7 h8N+ Kh6 Ng6 Nh8 Nh1 Kh5 Qf5 Rh3 Ne7 Rh4 N7d5 Rh3 Ng4 Kh4 Nhg3 Rh1 Kc7 Rh2 Bb5 Rh3 Kc6 Rh2 Bh1 Kh3 Qd3 Nh4 Be4 Nf3 Qb3 Kg2 Nge3+ Kg1 Qc3 Nh4 Bg2 Nf3 Qd3 Rh6 Qf5 Rh5 Qh3 Rh7
3rn3/RR4NN/b1p3N1/p3brK1/R2BQ3/1pRRP2r/Rn6/1b2kn1b w - - 0 1 legal: proof: f4 e5 a4 exf4 b4 c5 g4 h5 gxh5 cxb4 Bg2 b3 Bh3 Nh6 Bf1 Ng8 c4 b5 c5 b4 c6 Qg5 c7 Be7 Bg2 Qb5 axb5 Bf8 Bc6 dxc6 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kg5 Ke4 h4 a5 d4 f5 d5 b2 b6 b3 e3 f3 h6 f2 b7 f1R h5 g6 d6 f4 d7 f3 d8R f2 h7 Ba3 h6 Be6 c8R Nd7 b8R Ngf6 Qf3+ Kd3 Rb7 Bd5 Nh3 Nc5 Ra2 Na4 Rcc7 Bd6 Nd2 b1B Qe4+ Ke2 Nf3+ Nb2 Nd4+ Ke1 Nf5 Be5 Ng7 Ne8 Ra7 Rb8 Rcb7 Ra8 Rdd7 Rd8 Rd6 Be6 Rd3 Bd5 Qc4 Bf3 Qe4 Bg2 Rh2 Bh1 Rc3 Bd3 Ra4 Bb1 Kh4 g5+ Kg4 Rf8 h8R Rf3 h7 Rg3+ Kf5 g4 Ng5 Rh3 Rf8 g3 h8N g2 Ng6 g1N Nh7 Ne2 Kg5 Ng3 Rf6 Rg1 Rd6 f1B Rdd3 Be2 Rg2 Rf1 Rh2 Rf6 Rg2 Nf1 Rf2 Nd1 Ba3 Rf4 Bc5 Nb2 Bd4 Rf7 Rd2 Ba6 Rdd3 Nc4 Rfa2 Nb2 Nh5 Rff3 Ng7 Rf5+
3Q3N/1Nb1p1q1/pq5B/P2pRNR1/1N1r1q2/1bkN3r/RN2K3/b3r2r w - - 0 1 legal: proof: d4 c5 c4 b5 g4 f5 e4 fxe4 f4 h5 f5 Nf6 Be2 Na6 g5 bxc4 gxf6 c3 Bf3 c4 Bg4 Nc5 dxc5 hxg4 a4 Kf7 h4 g5 b4 d6 a5 c2 h5 c3 c6 e3 c7 e2 b5 a6 b6 g3 b7 g4 b8N g2 h6 g3 h7 Rg8 h8N+ Ke8 Na3 Bg7 Ra2 Be6 c8N Bb3 Nf3 g1B Ne5 g2 Bh6 c1R Rh5 c2 Nd3 Bb6 Rg5 Bc7 Nc6 Kd7 f7 Ba1 f6 Ke6 f8R g1Q+ Kd2 e1R f7 Qd4 Nc4 Qg7 Ncb2 Rh1 Ke2 d5 Qf1 Rb8 Nd6 Rb4 Nb7 Rd4 Ncb4 Rd1 Qf3 c1Q Qh3+ Kf6 Qd7 Qf4 Re5 Qb8 Qd8 Qa7 Re8 Qb6 f8N Rh3 Nfg6 Rdh1 Nh4 Rf8 Rh5 Ke6 Nf5 Kf6 Nc1 Ke5 Ncd3+ Ke4 Rg5 Rf6 Rh5 Re6 Rg8 Rc4 Nfd6+ Kd4+ Re5 Kc3 Nf5 Rd4 Ra4 Qh7 Rg5 Qg7 Ra2 Rg6 Rh5 Rgg1 Rg5 Re1+
2NBrN1N/4nP2/p4kN1/1rK1N2q/1pR1pp2/1Rnb4/N4RQn/q2q4 w - - 0 1 illegal: No proof kernel
r3bnR1/3Rp1rN/R2rkN1R/1p3n2/2K1b1Rp/3BQp2/4Pn2/3Nb1R1 w - - 0 1 legal: proof: g4 a5 h4 d5 f4 g5 a4 gxf4 c4 Nd7 cxd5 Nb8 g5 Qd6 h5 Qg6 b4 axb4 Ba3 bxa3 hxg6 Be6 Nc3 Bh3 Nb1 Bc8 d4 Kd7 Kd2 f5 Kd3 c5 g7 h5 g6 a2 a5 b6 d6 f3 d5 f4 a6 f2 a7 f3 Nc3 Rh6 Kc4 Bb7 Nh3 h4 Ng5 Rh7 Rg1 Nh6 g8N Nf5 Qc1 Bg7 Nd1 Bc3 g7 Be1 Bh3 f1B Rg4 Bc6 Rb1 a1R Qe3 Ra3 Ra1 Rd3 Ra6 Rd2 Rg1 Ba4 Bg4 Bh3 Nf6+ Kc8 g8R+ Be8 Rh8 Rg7 Rh6 Nd7 Ngh7 Nf8 d7+ Kc7 Bh5 Kd6 Bg6 Rd3 Qf2 Ke5 d6 Ke6 d8R Bg4 d7 Rd6 Rb8 Bh5 d8R Bc6 Rd7 Be4 Kb5 c4 Qe3 c3 Kc4 c2 Ra4 c1N Rc8 Rb8 a8R Nd3 R8a6 Nf2 Rdc7 Nd7 Rg8 Nf8 Rd7 Ra8 R4a5 Ng3 Rg5 Nf5 R5g4 Ke5 Bf7 Bg6 Bd5 Be8 Bc6 Ke6 Ba4 Rd5 Bc2 Rd6 Bd3 b5+
N1nQ2bk/b1qr3N/8/2B1p1Pp/2pnB1K1/B1Rrp1B1/5pBN/1n5B w - - 0 1 legal: proof: c4 f5 b4 a5 f4 axb4 e4 fxe4 f5 g5 a3 d5 cxd5 Bh6 Ra2 Bg7 Ra1 Bf8 g4 Be6 h4 Nh6 a4 Bd7 h5 Ng8 Ra3 Bc8 Rf3 Qd7 Rf4 gxf4 g5 Qd8 Bb2 Qd6 Bc1 Qg6 hxg6 Kd7 Rh3 Kd8 Rh1 Ke8 Kf2 c5 d4 b5 f6 h6 a5 e6 g7 Kf7 a6 f3 Kg3 e3 a7 f2 d6 b3 d5 c4 d7 b4 d8B b2 d6 b3 d7 Ba6 Nf3 Bb4 Bb6 Nc6 d8B Na5 Na3 b1Q Kg4 b2 Bc5 Rh7 Nh2 Nc6 Bg2 Bc8 Nb5 Nd4 Bc7 Ne7 Bg3 Kg8 Nc7 Bd7 Rf1 Rd8 a8B Nc8 Bae4 Be8 Qd2 e5 Na8 Bf7 Re1 Qa1 Re2 b1N Ba3 Bd5 Re1 Ba5 Rc1 Bb6 Rc3 Ba7 Bh1 Rd7 Beg2 Rh8 f7+ Kh7 Qd1 Rhd8 g8B+ Kh8 f8N Qa2 Bh7 Bg8 Qd2 Qb2 Bhe4 Qb7 Qd1 Qc7 Nh7 Nf5 Bgf3 Rd3 Bfg2 Nd4 Qf3 Rd6 Qf8 Rd7 Qd8 h5+
q1QnbR2/7r/1rNB1Nq1/2b1KrR1/Np3N1q/1P3b2/2N2nn1/2NR1q1k w - - 0 1 illegal: No possible last move
2b2B2/n1n1nrn1/8/2qB3Q/1B1N1kNN/1N3NpK/1r1b1pP1/nqN1Rb2 w - - 0 1 illegal: No proof kernel
3qbB2/2k1bR2/2p4N/r4NKb/bnP1pR2/n1n5/N1nN4/N1rRB1bB w - - 0 1 illegal: No possible last move, all moves rejected
B6B/3pbRb1/2QP1rR1/2RbB3/Nqb4n/1R5R/nnR1p2K/2nkrr2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Nc3 g5 Na2 gxh4 axb5 Na6 b6 Nb8 b5 Bg7 Nb4 cxb4 Ba3 Bh6 Bc1 Bf8 f4 Kf7 Kf2 Ke6 d4 Kd5 g4 a5 Kg2 h5 b7 e5 f5 h3+ Kg3 h4+ Kh2 e3 c4+ Ke4 d5 a4 g5 a3 d6 a2 b6 e2 f6 e1R c5 b3 f7 b2 c6 b1N c7 Nc6 b8B Nd4 g6 Nb3 g7 Be7 f8R Nc3 b7 Rh6 Ba3 Ke3 Rc1 a1B Re8 e4 Rb1 Na2 Bd3 Nbc1 Bc2 Rf6 Qf3+ Kd2 Bb2 e3 Qc6 Nh6 g8R Nf5 Be4 Kd1 Ref8 Ra4 Bg2 Rf4 Ne2 Rff1 Ba7 Qe8 b8R Ba6 c8R Bc4 Rb6 Qh5 Rg5 Qg4 Rb3 Qd4 Rg4 Qc5 Rf7 Qb4 Be5 Bd4 Nf4 e2 Nd3 Nh6 Bg3 Qa5 Qc7 R6f2 R1b2 Qb5 Nc5 Be6 Rg6 Qb8 Na4 Nf5 Rc2 Qb4 Rg1 Bb2 Kh1 h2 Bd4 Rf3 Bh8 Bg7 Bh3 Rf4 Kg2 h1N Re3 Bc4 Rb3 Nf2 Rh1 Nfd3 Qc5 R4f3 Be5 Nb2 Bg4 Rf4 Rhh3 R4f3 Qb5 Rf4 Rc5 R4f3 Rg3 Rf4 Bf3 h3+ Kh2 Nh4 Ba8 Rf6 Qc6 Bd3 Rf3 Bc4 Kg3 h2 Kh3 h1B Kh2 Bg2 Rh3 Bgd5
1Bq1N1Nb/q3pbn1/3R2NB/1bp3NB/kb6/n2N2r1/Q1P2KN1/3n1nr1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 h4 Kd7 d4 a5 h5 f5 g6 c5 h6 e3 h7 g3 d5 e2 g7 f3 b6 f2+ Kd2 e1B+ Ke3 a4 b7 a3 b5 a2 b6 a1Q d6 Kc6 d7 f4+ Ke2 Kb5 Be3 g2 Rh3 Nf6 g8N Ka4 Nf3 Bg7 Na3 Nc6 b8B Na5 b7 Ne8 Ng5 Nc4 Qb1 Bb4 Nb5 Na3 Nd6 Qc7 d8N Be6 Qa2 Qc8 Rh1 Bf7 Nde6 Bb2 Kf3 Ng7 Be2 f1N Kf2 g1N Bh5 f3 Ne8 Ne2 Nf4 Nc3 Ng2 Ra6 Rh4 Rg6 Rd4 Nd1+ Kg1 Bc3 Rd6 Nb2 Kf2 Bd4 Ngf6 Rg8 h8N Bdc3 Ngh7 Rg4 Ng6 Rg3 Bh6 Be5 Ng5 Bec3 Bc7 Be5 b8N Nd1+ Kg1 Bb2 Nbd7 B2c3 Nde5 f2+ Kh1 Nfe3 Nd3 f1B Kg1 Bd4 Nf2 Bb5 Bb8 Bdc3 Nd3 Nf1 Qb2 Qa2 Qa1 Qd5 Qb1 Qa8 Qa2 Qa7 Nge5 Rf3 Ne3 Nf5 Kg2 N5g3 Ne6 Rg4 Ng8 Bb2 Ng6 Bh8 Ng5 Nf5+ Kh1 Rgf4 Kg1 Ng7 Kg2 Rh3 Kg1 Rh1+ Kg2 Rg4+ Kf3 Rhg1 Ng2 Rg3+ Ke2 Nb2 Kf2 Nd1+
2n1N2B/3RRp1r/1pB5/2R1q1r1/2nqnPN1/N3bb2/pNB3K1/1Nkqr3 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 b6 gxh4 b4 Nd7 b5 Ba6 b7 Ndf6 b8N Nd5 b6 Bc8 b7 Nb4 Qh5 Na6 Qc5 Bf5 Qd4 Bc8 Qb6 cxb6 g4 h5 c4 e5 f4 Ke7 Kf2 Kf6 d4 h3 d5 h2 g5+ Kf5 d6 e3+ Kg3 Ke4 g6 h4+ Kg2 h3+ Kg3 e2 d7 Kd3 g7 Kc2 c5 e1N c6 e4 c7 e3 Bg2 e2 Ra5 Bc5 Nf3 Ne7 g8N Rh7 Nf6 Be3 Nc6 Nd3 b8N e1R Bb2 Nac5 Nce5 Ba6 Ne8 Nc8 Ng4 Ne5 Nc6 Be2 Nfd2 Nc4 Bh8 Kc1 Nd4 a6 Rf1 h1Q Nb5 h2 Bc6 Qe4 N5a3 Qe5 Kg2 Ne4 Rc5 a5 Rg1 Qdf6 d8R a4 Rd7 Ra5 Rh1 Qd8 Re7 Qdd4 Rf1 Ncd6 c8B Rb5 Bf5 Nc8 Nc3 Ra5 Nd1 Rb5 Nb2 Ra5 Nb5 a3 Nb1 a2 Bg6 Ned6 N5a3 h1Q+ Kg3 Qhd5 Bc2 Ne4+ Kg2 Qd1 Rh1 Qd5d4 Rh5 Qg7 Rcd5 Rc5 Rdd7 Rg5 Rh6 Qde5 Rhe6 Qed4 Re5 Qf6 Rb5 Qfe5 Rc5 Bf3#
4b1RR/5k1r/q1Rr2p1/Rn1r4/pKn1B1R1/pp4P1/QN3Nn1/3RbNb1 w - - 0 1 illegal: No proof kernel
5Rr1/1n4B1/1qnbpb2/5kp1/pNp1b2r/R1nRb2N/R1K3PN/1Q2R2R w - - 0 1 illegal: No proof kernel
K1B1RN1q/8/1p2p1q1/2p2pnB/3RP1p1/1b2nNq1/r1NB4/RB1B1rbk w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 f5 dxc4 Qb3 g6 Qf3 Ra6 fxg6 Ra5 g5 Ra8 Qg4 hxg4 Kf2 Kd7 Ke3 Kd6 Ke4 c5 h4 f6 a4 b3 d4 c3 a5 b6 g7 b2 h5 c2 a6 Be6 g6 Bd7 h6 Nc6 a7 Qb8 d5 Qd8 h7 Rb8 a8B Nb4 Na3 b1Q Bd2 c1Q+ Nc2 Nd3 Bb7 Be6 Nf3 Nb4 Bc8 Nh6 g8B Qe1 g7 Qg3 Bf7 Ra8 g8B Ra2 Bh5 Nf7 e3 Bg7 Be2 Bh6 Bd1 Bf4 Rg1 Be5 Rh1 Bd4 Re1 Qe8 Re2 Qb2 Na3 Nc2 Re1 Kc7 d6+ Kc6 d7 Bb3 d8N+ Kd6 Ne6 Qb1 Nf8 Ng5+ Kf5 Qb2 e4 Bg1 Bc4 Rg8 h8R Rg7 Re3 Rf7 Rd3+ Qd4 Bd5 Qc3 Rd4 e6+ Kg6 Ne3 Nc2 f5 Rg8 Rh7+ Kf6 Rh8 Bf7 Rh2 Bh5 Rf2 Rh8 Rf1 Bc4+ Kc6 Bd3 Qg6+ Ke7 Qb2 Kd8 Qc3 Rb4 Kd6 Rg8 Qh8 Rd4+ Bd5 Nh2 Ke5 Kc7 Kf4 Kb8 Bb3 Nf3 Qh2 Kb7 Kg3 Kb8 Kg2+ Kb7 Ba4 Ka8 Qd6 Rg7 Kh1 Re7 Qg3 Re8 Nf7 Nce1 Ng5 Bb1 Bh2 Nc2 Bg1 Rc4 Bb3+ Ra4 Rb2 Rd4 Ra2+
1R2Q1b1/NNB1p2P/1Q1nr2b/3rp2q/N1p4K/r2BbNr1/kN6/4N3 w - - 0 1 legal: proof: b4 a5 bxa5 h5 e4 d5 exd5 b5 g4 hxg4 a4 b4 a6 f6 a5 Nd7 c4 Nb6 axb6 Rh5 Ra3 Rh8 Re3 Qd6 Re5 fxe5 c5 Qxc5 Ne2 Qd6 Ng1 Qd8 f4 Kf7 Kf2 g5 Kg3 c5 d4 b3 h4 c4 b7 b2 b8Q Ra7 f5 Nh6 f6 Qe8 d6 Ke6 d7 Kd5 d8N Nf7 h5 Bb7 h6 Qd7 h7 Qe6 Qb3 Qc8 Na3 b1R Nc6 Ra1 Bd3 Nh6 f7 Ra8 a7 Qd7 Qb6 Qe8 Nc2 Ra3 Bd2 Rg8 Ne1 Rg6 Bc3 Re6 Ngf3 Bg7 f8N Qh5 Nd7 Nf7 Ba5 Nd6 Rg1 Bh6 Qe8 Rd8 a8N Bc8 Nc5 Bd7 Kg2 g3 Na7 g4 Na4 Bc6 Nb2 Rd7 Kf1 g2+ Kf2 Rd8 Rf1 g1B+ Kg3 Bge3 Rf2 Qf7 Kh4 g3 Rc2 g2 Rc3 g1R Rb3 Rg3 Rb4 Nc8 Rb3 Kd6 d5 Rd7 Qb7 Kc5 d6 Qf5 Bc7 Bd5 Nb6 Rd8 d7 Nd6 Rc3 Kb4 N6a4+ Bb6 Rc1 Kb3 Rb1 Ka2 Qa6 Bbe3 Qb6 Ra8 d8N Qf7 Ndc6 Rd8 Na5 Nb7 Qbc6 Rf6 Nd1 Qg6 Rb4 Bg8 Ndb2 Rd5 Rb6 Nd6 Rb8 Qf5 Qb6 Re6 Nb7 Qh5+
2NbQ2Q/RN1p1N2/N4N2/B1PB1r1p/r3r3/N1p1r1r1/1bKqk3/r7 w - - 0 1 legal: proof: c4 f5 b4 a5 e4 axb4 Qe2 fxe4 Qd1 b3 d4 b5 Bf4 c5 Bg3 b4 Bh4 Ba6 Bg5 Bb5 cxb5 c4 Bc1 Na6 h4 g5 g4 Qc8 a4 Kf7 f4 Nb8 f5 Na6 Ra2 Rb8 Rf2 Qc7 Rf4 gxf4 g5 Nc5 dxc5 Qd8 Qg4 Nh6 Qd1 Ke8 g6 Ra8 Qg4 Nf7 Qd1 Ng5 hxg5 Ra7 Nd2 Ra5 Nb1 Ra8 Kd2 h5 b6 e5 a5 Ke7 a6 b2 g7 f3 g8Q b3 g6 Kf6 g7 Kg5 a7 Kf4 b7 f2 b8N e3+ Kc3 e4 f6 Be7 Qe8 Rg8 Bg2 f1R Na3 b1R f7 b2 f8N Ra1 Kc2 b1R Qd4 Qa5 Na6 Rb3 Nf3 Bd8 Ng5 Kg4 Rg1 e2 Bd2 e1B Nf7 Rf5 Ne6 Re3 Qf6 Bh4 Rb1 Bg3 Rb7 Be5 Qh6 Kg3 Qh8 Kf2 Be1+ Ke2 Bc3 Qc7 Ba5 Bb2 Bh1 c3 Bg2 Bh4 Ned8 Qf4 Rc7 Qh6 Nb7 Bd8 Bh1 Rh3 Bg2 e3 Be4 Rg3 Bd5 Rf8 g8N Re5 Ng5 Rff5 Nf7 Qd6 Nf6 Re4 Ba2 Qd4 Bd5 Qd2+ Kb3 Rc8 a8N Rb8 Nb6 Ra8 Nc8 Ra7 Bb6 Ra8 Nb4 Ra4 Ba5 Kf3 Na6 e2 Nb1 e1R Na3 Qd4 Kc2 Re3 Nbd6 Kf2 Ra7 Ke2 Nb7 Qd2+
1B1k1BrB/7N/2KB4/1B5q/2rPNN2/bnq2nq1/Q3r2N/q1R2bqn w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 g5 Ke2 c5 Kd3 f5 Kc4 a5 h4 a4 d4 a3 d6 g4 Kd5 c4 e5 f4 h5 f3 e6 a2 e7 a1Q b6 f2 b7 c3 h6 c2 b5 Qc3 h7 Nh6 b6 Ra2 Nd2 Nd7 b8N Ba6 b7 Nf5 Ba3 c1R Bb5 f1Q Nh3 g1Q Ne4 g2 Nc6 g3 b8B Rg8 h8B Nc5 Qe2 Qda5 Nf4 Nb3 Bc5 Kd7 e8N Kc8 Ne5 Kd8 Qc4 Re2 d7 Qff3 Bb4 Qaa1 Kc6 Qh5 N8f6 Qge3 Neg4 g1Q B4d6 g2 Nh2 Ng3 Nh7 Be7 Bde5 Ba3 Bed6 Qgf2 Nf1 g1N Nh2 Nf3 Bf8 Rcc2 Rc1 Nh1 Bbd6 Qg3 Bb8 Nc5 Qa2 Qeg1 Bfg7 Ke7 d8B+ Ke8 Bb6 Nb3+ Bc5 Kd8 Bf8 Qce3 Qb1 Rc4 Qa2 Qec3 Kb6 Bc8 Bcd6 Bh3 Kb7 Bf1 Kb6 Nc5 Kc6 Nb3+
nrq1B2b/qb2R2n/rr3Q2/3KRN1R/qRRn4/P3Q3/1b1BR3/1k3b2 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Ra5 Ng4 hxg4 Bb2 Ra6 Bc1 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 e5+ Kc4 c5 d4 b5+ Kb3 e4 h4 c4+ Kb2 b3 Kc3 g3 g6 e3 h5 g2 g7 f3 h6 b2 a3 b1Q f6 e2 f7 e1N h7 f2 Qf3 Nc2 Rh5 Na6 Ra2 Bb7 Qe3 Qc8 Nf3 g1Q Re5 Nf6 g8R Nc7 Rg4 Bg7 f8R Ra6 Bd2 Na8 Nh4 Qd1 Rf7 Re8 h8R Nh7 Bd3 f1B Rfe7 Rf8 Bg6 b4+ Kb2 b3 Kc3 b2 Be8 b1R Rb2 Nf6 Rhh5 Nh7 Rb4 Bh8 Rg2 Qdg4 Re2 Qgd7 Ra4 Rbb6 Rb4 Kc7 d6+ Kc6 Nf5 Qg4 Kb2 c3+ Kb3 Qg7 Kc4 Qf7+ Kd3 Qb3 Ke4 Qa4 Qd3 Rg8 d5+ Kc5 Qe3+ Nd4 Rc4+ Kb5 Rb4+ Ka5 Rc4 Qdc7 d7 Qc5 Rb4 c2 d8R c1B Rdd7 Bb2 Rc7 Rf6 Rc6 Qa7 Rcc4 Rfb6 Qb3 Rgg6 Qe3 Rgc6 d6+ Rb5 d7 Rcb6+ Rd5 Rg6 Qb3 Bc6 Qe3 Qd1 Rc3 Rh6 Rbb3 Ka4 Rc5 Rb8 Rb7 Qb3 Rc4+ Qb4 Rb5 Bb7 Rb6 Rc6 Rde5 Re6+ Kd3 Kb3 Rbb5 Rec6 Ke4+ Ka2 Kd5 Qa4 Rbb4 Ba1 d8Q Bc3 Qd7 Bb2 Qe6 Kb1 Qf6 Rcb6+
bk4rR/b1qn2q1/2R4R/B1rqn1P1/1r1Q2K1/n2R1N1Q/R2Rb3/2n4N w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 Ke2 Kd7 Kf3 h5 d4 c5 g4 f5 d6 h3 e4 h2 g5 b4 e5 c4 d5 b3 Ra6 b2 Ra3 c3 Qc2 h4 Qe2 c2 Re3 h3 Qb5+ Nc6 b8Q Ra5 b7 Nf6 Qb6 Rg8 Rd3 Qc7 Nc3 b1N Ne4 Na3 Qb2 Rc5 Bd2 c1N e6+ Kd8 Qa1 Nd7 Qd4 Be7 Ba5 Nce5+ Kf2 f3 Kg3 f2 Nf3 f1R Nf2 f4+ Kh4 Nb6 d7 Rg1 Qa7 Rg4+ Kh5 Bf6 b8R Bh8 Ra8 Bg7 Rhd1 h1B R1d2 h2 Rc2 Bg2 Nh1 Bf1 Qb8 Be2 Ra6 Bf8 Ra2 Be7 Qa7 Bb7 Qe3 Ba8 Qd4 Nc8 Rc6 Nb6 Qa6 Bf8 Qac4 Bd6 Qcc3 Be7 Qe1 Bd6 Qf1 Bf8 Qh3 Bd6 Ne1 f3 Rdd2 f2 Nf3 f1Q Rd3 Ke7 d8R Nbd7 Rb8 Qg2 Rbb6 Kd8 e7+ Kc8 Ra6 Kb7 e8R Be7 d6 Re4 Qg1 Rb4 Qd4 Qg3 Rc8 Qf4 Re8 Qf6 Kh4 Qg7 Kg3 Nb8 d7 Bf8 d8R Nbd7 Rh6 Be7 Rac6 Bd6 Nf2 h1Q Kf4 Qd1 Nh1 Qb3 Kg3 Qd5 Rf8 Rc2 Rfe8 Bc5 Kh4 Ba7 Rd2 Ng6+ Kg4 Rc5 Re3 Qc8 Red3 Kb8 Rf8 Qd8 Rff6 Qc7 Rh8 Ngf8 Rfh6 Ne5+ Kh5 Nfd7 Kh4 Ng6+ Kg4 Nge5+
q2R4/B1Q1QQR1/N1P3qq/nK1n3q/1r1Q1Qqq/1b1b2Q1/5N2/1kn4r w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Qd1 f4 Ng1 f3 Bh3 Bd6 Bg4 Bf4+ gxf4 hxg4 Kd3 Kf7 Kc4 Kf6 h4 Kf5 b4 Ke4 b6 f1B b5 a5 b7 d5+ Kc5 g5 c4 a4 b6 a3 h5 d3 h6 d4 h7 f2 f5 d2 e3 Kd3 f6 a2 e4 g3 f7 g2 f8Q g4 e5 g3 e6 Qh4 e7 Ra4 e8Q Be6 Qh6 Nc6 b8Q Na5 b7 Ne7 Qf7 Nd5 Qe2+ Kc2 Kb5 d3 c5 Rc4 Nh3 g1N c6 g2 Qee5 d1Q Qbc7 d2 b8Q Ne2 Nc3 g1Q Ne4 Qg6 Qhf4 Qgh6 Rb1 a1Q Rg1 Qa3 Bb2 Nc1 Bd4 Qdh5 Nc5 d1Q Na6 Qdg4 Ba7 Bd3 Ra1 f1Q Nf2 Q5g6 Ra2+ Kb1 Rd2 Qfh3 Rg2 Bc8 Qee7 Be6 Qg3 Qh4h5 Qcf4 Q3h4 Qbc7 Qd6 Rg1 Qd8 Rg2 Qa8 Rg1 Rg8 h8Q Rf8 Qhd4 Re8 Qf7f6 Bg8 Qef7 Re1 Q6e7 Rd1 Rg2 Rh1 Qdc5 Nb6 Qee5 Bf5 Qee4+ Rc2 Qed5 Qd6 Qh2 Qgh3 Rg7 Qdg6 Qe8 Q3g4 Qee7 Be4 Qdf5 Bb3 Qff7 Rc4 Rd8 Nd5 Qd4 Bd3 Qhg3 Rb4+
b3b3/1n4n1/3RqBPk/2RQN3/1B2q3/rnB4B/4r1b1/BRKn1Rbn w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Na3 exf4 Nc2 Qd6 axb5 Qd7 b6 Qd6 b5 Qd8 Nb4 axb4 g4 h5 e4 f5 d4 Kf7 Kd2 Kg7 b7 c5 e5 h3 d6 h2 d5 h4 g5 f3 b6 h3 d7 b3 g6 b2 d6 b1Q e6 c4 e7 f2 e8R f4 Bg2 f1B Qe2 c3+ Kd1 c2+ Kd2 f3 Qe3 f2 Ra2 Ra3 Qe2 Ne7 Qh5 Na6 b8R Nf5 b7 Nc5 Bb2+ Qf6 d8B c1N d7 Qe4 Re5 Qe6 Bc3 N1b3+ Kd1 Bd6 Nf3 Re8 Rd2 Bf8 Rg1 h1B Rd6 h2 Bh3 Bfg2 Bda5 f1N d8B Bd7 Bab4 Be7 Ba1 Bf6 Red5 Bd4 Ne5 Bb5 Qf3 Kh6 Bf6 Ng7 Qd3 Re7 Rf8 Bd7 b8B Nb7 Rc5 Be8 Bc7 Be3 Bca5 Bf2 Kc2 Ne3+ Kb1 Nd1 Kc2 Nc3 Rb1 Nd1 Bbc3 Bg1 Bab4 Rf7 Bh4 Rf1 Bf6 Re1 Rf7 Bf3 Rf8 Bhg2 Rf7 h1N Rf8 N3a5 Kc1 Re2 Qd5 Nd8 Qb7 Qd4 Bh4 Bd5 Rf1 Qe4 Bf6 Bdc6 Rc4 Bd5 Qb5 Ba8 Qd5 Ndb7 Rc5 Nb3+
2q4k/1rr5/3Bbn2/bK1Rr2n/BP2nB2/1B1QN3/1b1Nq3/nN1N1Nr1 w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 g5 Ke2 c5 Kd3 f5 Kc4 Kf7 h4 Kg7 d4 a5 b6 a4 d6 f4 e5 g4 d5 a3 h5 a2 d7 a1R d6 f3 h6+ Kh7 e6 f2 e7 Nf6 e8B R1a5 b7 Ne4 Nf3 g1R Nh2 g2 Qd3 g3 Bf4 R8a7 Bf7 Qc7 d8N Bg7 d7 Bb2 Ne6 Rg8 d8B Rg7 Ng5+ Kh8 h7 Nd7 b8N Rb7 Nh3 Ndf6 Nc6 Bg4 Be7 Qc8 Be2 f1Q Bd1 Qe2 Nf1 Bd7 Bd5 Be6 Bed6 Rgc7 Nf2 Rab5 Bc2 Ra5 Nd4 Rab5 Kb3 c4+ Ka4 c3 Bdb3 Re5 Bd1 c2 Nf5 c1N Rh5 Bg8 N5e3 Be6 Bc4 Nb3 Bc2 Bf7 Nfd1 Na1 B4b3 Be6 Rg5 Rh1 Rf5 g1N Rh5 g2 Rf5 Kg7 h8N Nh3 Ng6 g1B Nh4 Kh8 Nf3 Bf2 N3d2 Rg1 Ng4 Bb6 Nge3 Ng3 Rg5 Ngh5 Rf5 Nf2 Rg5 Re4 Rd5 Re5 Kb5 N2e4 Ba4 Rgg5 Bcb3 Rg2 Nf2 Rg1 Nfd1 Ba5+
1bRqb1b1/1K1rn1b1/3R2RB/k1N2r2/qN4Nb/Q2n1N1P/4Rp1n/4R3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 b4 a6 b6 Ne7 b7 Nf5 b5 Nh6 b6 Ng8 Bg2 hxg4 Be4 Rh6 Bd3 Rh8 Bb5+ axb5 Kf2 Kd7 d4 g5 e4 f5 h3 c5 e5 c4 d6 Kc6 d7 b4 e6 Kb5 e7 f3 Ke3 b3 e8R f4+ Ke4 c3 Kd5 b2 Re4 c2 Re6 f2 Rg6 f1N Rd6 g3 Ne2 f3 Ng1 g2 Ra2 g4 Ra3 g3 Bh6 c1B Re3 f2 Qd3+ Ka5 Re2 Bg5 Nf3 g1B Nc3 b1B Nd1 g2 Ne3 Rh7 Rg6 Bh4 Ng4 Na6 Kc6 Nh2 b8N Bg7 d5 Ba2 d6 Nc5 b7 Ra7 Qb3 Nd3 Na6 Rh8 b8N Rh7 Bg5 Rh5 Bh6 Rf5 Nb4 Ba6 Qb2 B6c4 Qc3 Bf7 N8a6 Be8 Qb2 Nf6 Nc5 Bg8 Qc3 Nd5 Qc1 Nf1 Qe3 Bh2 Qe7 g1Q Qe3 Ra8 Kb7 Ne7 Qc1 Qg3 Qb2 Qf4 Qa3+ Kb5 Rg1 B2g3 Rh1 Nh2 Rhe1 Qc4 Nc6 Qa4 Nb4 Qda5 d8R Ra7+ Kb8 Rc7 d7 Bf4 Rc8 Ra7+ Re5 Qd8 Re2 Ka5 Re1 Ra6 Kb7 Rd6 R5e2 Rd4 Rcc6 Bc7 Rcd6 Qc8+ Ka7 Rdd5 d8R Qd7 Rb8 Qd8 Kb7 Rd4 Rc8 Rdd5 Rb6 Rd7 Rbd6 Bb8+
2QrnQNN/4NN2/8/R3n3/pN1rRBqb/2n2kN1/Pn3r1q/2K2b1n w - - 0 1 legal: proof: f4 h5 g4 hxg4 c4 d5 b3 e5 Bg2 exf4 cxd5 c5 b4 g3 bxc5 f3 Qb3 fxg2 Qa4+ Nd7 Qd1 Nb8 h4 Kd7 d4 f5 Kd2 b5 e4 g5 e5 a5 d6 Kc6 h5 Kd5 e6 Ke4 d5 a4 e7 b4 e8N b3 c6 g4 c7 f4 h6 b2 d7 f3 h7 f2 d6 f1N+ Kc2 Qg5 d8Q Na6 d7 Nb4+ Kc3 Nd3 Kc2 Ba6 c8N Be7 Bf4 Nf6 Rh5 Rf8 Nf3 g1Q h8N g2 Qa5 g3 d8N Qh2 Qc7 g1N+ Qd2 g2 Ndf7 Ng3 Nd4 Nf3 Qb4 Nfe5 Ne2+ Kf3 Na3 g1R Re1 b1N Qcc5 Bd8 Ne7 Nh1 Qc8 Nb2 Kc1 Qg4 Nc2 Nc3 Ng3 Bf1 Re4 Rg2 Qbc5 Rf2 Nb4 Ra6 Rf5 Rd6 Rg5 Rd4 Qd6 Nfd5 Nf6 Nc7 Nfg8 Ne8 Rh5 Nd7 Ra5 Ne5 Nec6 Bh4 Nce7 Nc7 Qh6 Rfd8 Qf8 Ne8
rQ1Nq1R1/1K1n3k/2q5/2BnNp1N/2R2R2/1N2nq1n/P1RR1b2/b1n2r2 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 g5 f6 g6 Be6 Qc2 Bf7 Qb3 Ra7 Qd1 Ra8 Bh3 h5 Bg4 hxg4 gxf7+ Kd7 Kf2 Ke7 e4 c5 d4 b5 h4 g5 e5 f3 Ke3 c4 Ke4 f2 e6 f1N h5 g3 h6 c3 h7 c2 Bf4 c1N Bc7 b3 Nd2 g4 Rh4 b2 Bb6 g2 Nb3 b4 Nf3 g1B Ne5 Bg7 f8R g3 Bc5+ Qd6 Qg4 g2 Qf4 Bf2 Rf7+ Ke8 e7 g1N Rh2 Qd7 d6 b1Q+ Kd5 Qd3 Rh4 Qe3 Rb1 Qc8 Rb2 Nh3 Rc2 Nd7 Qh2 Qd8 Kc6 Qf3+ d5 Ne3 Kb7 f5 Rf4 Ngf6 Rcc4 Rg8 h8R Ne4 Rc2 Nc3 Rhh4 Bf6 Rg7 Rh8 Rg1 Rg8 Rd1 Rg1 Rdd2 Rf1 Rc4 Bg7 Rhf4 Bh8 Nc6 Kf7 e8N Kg8 Nf6+ Kg7 Ne5 Qe8 Nh5+ Kh7 Qg3 Nb6 d7 Bg7 d8N Nd7 Nd4 b3 Qh2 b2 Nb3 b1Q Qg3 Qg4 d6 Ncd5 Qh2 Qf3 Qg3 N7f6 d7 Qb2 Ndc6 Qd4 d8R Nd7 Qh2 Qc3 Rc8 Qe7 Rg8 Qe8 Qg3 Qa5 Nd8 Qa4 Qg5 Bh8 Qe7+ Bg7 Qd6 Bh8 Qb8 Bf6 Nd3 Ba1 Ne5 Qc6+
qRR1qBQB/1qNR1q2/P1r4r/p2B4/1K3k1B/1R1b1nr1/3Rqn2/b7 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 d4 Kf6 Kd2 c5 a4 h5 g4 e5 a5 c4 d6 b6 d7 h3 d5 h2 d6 b3 Kc3 e4 a6 b2 Kb4 c3 Nh3 e3 Bg2 e2 Nd2 e1Q Nc4 b1R+ Qb3 h4 Ra2 Bg7 Na5 Nh6 Rd2 c2 Ng5 h3 Ne6 Qe2 Bb7 Qc7 d8R Nd7 Bb2+ Ne5 d7 Rg1 Qd5 Rg3 Rb1 h1Q g5+ Ke7 g6 Kf6 Bc3 h2 Rb2 Qb8 Bd4 c1Q Rb3 Ng4 Bc3 Bh6 g7 Qcf1 g8R Bg7 Qc4 Rh6 Ba1 Kf7 f6 Kg6 f7 Kf5 f8R+ Bf6 Rfe8 Qhe4 Re7 h1Q Rde8 Qff3 d8B Nf2 Rgf8 Kg4 f5 Bd7 Rh7 Bb5 Rhd7 Ra7 Be7 Qa8 Rb8 Qh5 Bc6 Rc7 Rfc8 Qe8 Bb2 Bh8 f6 Qf5 f7 Nf3 f8B Qfg6 Ng7 Kf4 Bh4 Qf5 Bd4 Qh7 Qd5 Bd3 Qg8 Qhg6 Bb7 Rc5 Bc6 Qgf7 Bb7 Qc6 Bdf6 Qc7 Bd5 Rc6 Bc3 Qcb7 Ne6+ Ke3 Nc7 Kf4 Bb2 Be5 Ba3 Ba1 Bb2 Bg6 Bbg7 Bd3 Bh8 bxa5+
2R1N1N1/r7/R1Bnn1N1/3RbR2/2b1r3/1rk3Nr/KR1pr1Pr/r1qQ4 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 Bd2 cxd4 axb5 Ba6 b6 Bb7 b5 Bc8 Bb4 axb4 Kd2 Kf7 Kc1 Kf6 Kb2 Ke5 c4 d5 b7 h5 f6 d3 f4+ Kd4 f7 e5 b6 b3 f5 h3 c5 e4 f6 h2 c6 d2 c7 e3 Na3 e2 Rb1 e1R Ba6 h4 Bd3 h3 Qc2 d1R Rc1 Bd6 f8N Be6 c8R Ra7 f7 Qc7 Nb1 Re2 Nh7 Be5 f8N Rde1 Nf6 Nc6 b8R Nd8 b7 Ne7 Ng6 Nf5 Bb5 Nd6 Ne8 Bf7 Nd2 Ne6 Kb1 b2 Rd1 Qc5 Qa4+ Kc3 Ra8 d4 b8R d3 Ka2 b1R Bc6 Rb3 Rb7 Bg8 Rf7 Rh4 Rf5 Rhe4 Rab8 Rf1 Rb6 Qc4 Ra6 Qc5 Rb1 Rc1 Rb2 Rb1 Nf1 d2 Ng3 Bf7 Nf3 Qg1 Ng5 Qc1 Rhf1 h1R Nh7 h2 R1f2 Nc5 Rf1 Bc4 Nhf6 Ne6 Ng8 Rg1 N8e7 h1R Ng8 Rh2 Rg5 Rgh1 Rff5 Bh8 Rd5 Be5 Rf5 Rh3 Qb5 R3h2 Qb6 Rh3 Qg1 R1h2 Qd1 Ra1#
qrr5/3kn1q1/N3b2R/Q1B2PN1/N2qpb1N/1Bbq1nK1/4N2B/B4b2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 f4 h5 Kf2 c5 g4 e5 d4 h3 b7 h4 g5 h2 f5 c4 b6 c3 g6 h3 d6 c2 g7 b3 d7+ Ke7 d5 e3+ Kg3 e4 Bb2 c1Q Nc3 e2 Ba1 b2 Qa4 b1Q Qa5 Qcb2 Na4 Nc6 b8N Ne5 b7 Qd4 Na6 Nf3 b8B Qbd3 Be5 Qc7 d8N Be6 d6+ Kd7 Nf7 Rc8 Ng5 Ne7 g8N Bh6 Bf4 Qcc3 Be3 e1B+ Bf2 Qcb4 Ne2 Bc3 Bg1 Qg7 Bc5 Ng6 Ne7 Qbd4 Nd5 Rhd8 Ndf4 Ne7 Ng2 Rb8 Nh4 Rdc8 Rg1 h1Q Rg2 Kc6 d7 h2 d8B Kd7 Bc7 Qhg1 B7d6 h1B Be5 Qge3 Rh2 Bg2 Nb4 Qd5 Ng6 Nh4+ Nf3 Rb6 Bed4 Rcc6 Ng1 Rb5 Na6 Qc2 Bc4 Qcd3 Bb3 Rc8 Ne2 Qa8 Rh3 Qg1 Rh1 Be3 Ng5 Nf3 Rh6 Rbb8 Nh4 Bc1 Kg4 Qf2 Be5 Qfd4 Bh2 Bf1 Kg3 Bf4+
q4BR1/2qb1RPB/1p3rQB/1k2r3/5BK1/1r1Rn1R1/r1bb2bR/6nN w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Ra5 Ng4 hxg4 Bb2 Ra6 Bc1 Ra8 Kf2 Kd7 a4 e5 h4 c5 d4 g3+ Kf3 b6 f6 g2 a5 c4 h5 c3 h6 e4+ Kg4 b3 h7 b2 g6 b1B g7 e3 d6 Kc6+ d7 f3 a6 e2 d5+ Kb5 d6 c2 f7 f2 a7 Nc6 Rh2 Nge7 Bf4 c1Q Qc2 Nf5 Nh3 Ncd4 Ra3 g1R+ Rg3 Nf3 Qe4 Qe8 d8R Bc2 d7 Bb4 f8B Bd2 Bh6 Rg8 h8R Rh1 Qe6 Ng1 Qg6 Qe4+ Bf4 Qe8 Bg2 e1R Be4 f1B Nf2 Bg2 R8h3 Re2 Rf3 Re3 Rhg3 Rb3 Bh6 Rh8 Bf4 Rh6 Rd3 Rb8 a8R Rb7 Rb8 Ra7 Rb7 Ra2 Ra7 Qa3 Rb7 Qee7 Re8 Qa8 d8B Qf7 Bdg5 Qc7 Ra7 Rh5 Bh6 Bd7 Rb7 Ne2 Rd8 Rf1 Nh1 Rf2 Bd5 Ng1 Bg8 Re2 Bh7 Re5 Be7 Re6 Rg8 Rc6 Bf8 Rf6 Qe8 Nh4+ Qe6 Re5 Ra7 Nf5 Qe8 Re4 Qg6 Re5 Qf7 Qc5 Rd6 Be6 Rdd3 Qc3 Re7 Qc7 Qg6 Bd7 Rf7 Ne3+
RN1b1R1K/PN4NR/1nn5/n3Bn1R/1k4qp/q1q1Nr1r/Q2b4/6qR w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 Bg2 g6 Be4 f3 Bf5 gxf5 g5 f4 h3 Bg4 hxg4 Qe7 Bb2 Qd7 Bc1 Qd8 Kf2 Ke7 e4 Kd6 a4 Kc5 d6 f5 g6 h5 a5 b5 d3 b3 d7 b4 g7 b2 e5 b3 g5 Be7 e6 Nc6 d4+ Kb4 a6 Na5 a7 c5 d5 c4 d6 c3 g6 c2 Nc3 b1N Qe2 b2 Nd1 Na3 Ne3 b1Q Bb2 c1B Be5 Qf8 d8R Qe4 d7 N3c4 Qa2 Nb6 Ne2 Bd2 Nd4 Bf6 Rh3 Ne7 g8R Nec6 g7 Rh7 Rc8 Bd8 e7 Qd3 e8N Qc3 Rh8 Qfc5 Kf1 f2 Kg2 f1N Kf3 Ng3 g8R Qa3 Rc1 Qcc3 Rf8 Rf7 Ng7 h4 Rc7 Rc8 Rh5 Rb8 Rhh1 Rb7 Kg2 f3+ Kh3 f4 Kg4 f2 Rcd1 Rf6 Kg5 f1Q Rc1 Rf5+ Kg6 f3 Kh7 f2 Kh8 Qg2 Rc8 f1Q Ra8 Qfg1 Rf1 Bg5 d8N Rf3 Rh7 Re7 Nb7 Nf5 Ra1 Qg4 Rb1+ Ka4 Rb5 Rh3 Rd5 Rf7 Rc5 Bd8 Rd5 Nb4 Nc6 Rf6 Nb8 Nbc6 Rd6 Rf7 Rdh6 Kb4 Rh5 Nfe7 Ne8 Rff3 Ng7 Nf5
KR2qk1r/Q1n1N3/5b2/PB5B/1rr1pR2/B3rR2/b1R2Bb1/1q2rqB1 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Nh6 h4 Nd7 h5 Rb8 Nc3 Ra8 Nce2 Ne5 Nf4 gxf4 g5 Ng6 hxg6 Ng8 Kf2 h5 d4 e5 a4 c5 d6 b5 g7 b3 a5 b4 f6 e3+ Kf3 c4 Ke4 b2 Kd5 b1R Kc6 c3 d7+ Kf7 g6+ Ke6 f7 Ke7 d5 f3 d6+ Ke6 Rh4 f2 Qd4 c2 Qa7 e2 Rf4 e1R Ne2 b3 Ng3 h4 Nf5 h3 Ra2 h2 Ne7 b2 Bb5 Nf6 g8R f1Q g7 Qe8 Kb6 h1B d8B e4 d7 Rh3 Be3 c1R Bf2 Rd3 Rh8 Bg2 g8B Rc5 Rh3 Bg7 Rhf3 Rde3 f8B+ Kd6 Bh7 Rc4 Bg6 Bb7 Bg1 Bd5 Bh5 Bf7 Kb7 Nd5 Bb6 Bf6 Bf2 Nc7 d8R+ Ke6 Rb8 Bg8 Ng6 Kf7 Ba3 Kg7 Ne7 Kf8 Ra1 Rbd1 Bbc5 b1Q Ra2 Rb4 Rc2 Ba2 Bb6 Rd7 Nc8 Rh7 Ne7 Rh8 Bg1 R3e2 Bbf2 Re3 Qd4 Ra6 Qc5 Rc6 Qa7 Ne6 Ka8 Rcc3 Bd7 Rcc4 Bb5 Nc7+
1bK5/2b1nR1R/B5bq/Qn3np1/3B2RP/q2rN2k/1RBb1Bb1/4R1b1 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 a4 b5 f5 c6 Nc3 Kf7 Nd5 Ra6 axb5 c5 g5 cxd4 Ne3 Rf6 gxf6 Ke8 Ng4 hxg4 Kd2 Kf7 h4 g5 c4 e5 b4 d5 b6 g3 c5 d3 Kc3 a4 b5 g2 Kb4 d4 Ka5 e3 c6 e2 c7 e1B+ Qd2 a3 b7 a2 Kb6 e4 Qf2 d2 Ka7 d1B b6 e3 Nf3 g1B Bb2 e2 Nd2 d3 Bd4 Bd6 Nc4 d2 Ne3 Na6 b8R Bb7 c8B Bg2 Rb7+ Nc7 Kb8 Bc2 Ra7 d1N b7 Ba5 Qe1 Bb6 Qa5 e1B Ba6 Ne7 Rh3 Beb4 Rg3 Qf8 Rg4 Qh6 Rc1 a1Q Bd3 Nc3 Re1 Ne2 Ba6 Bce4 Bd3 Rd8 Bc2 Kg8 f7+ Kh7 f8B Qa3 f6 Kg6 f7 Kh5 Bfg7 Bg6 f8R Bd2 Rf7 Ng3 Bge5 Ngf5 Bg3 Bf4 Bf2 Rd5 Be6 Rd7 Bc4 Be5 Ba6 Nb5+ Ka8 Rd5 b8R Bbc7 Kb7 Bg3 Re8 Bb8 Rh8 Bgc7 Rhh7 Ng8 Kc8 Rd7 Be5 Rd3 Bd4 Nge7+ Kd7 Nfd6 Rb7 Ndf5 Rb6 Nbd6 Rb4 Nb5 Rb2 Bg3 Re4 Bgf4 Nd1 Kg4 Ne3+ Kh3 Kd8 Bfe5 Rg4 Bec7+ Kd7 Nc6 Kc8 Nce7+
N2N2qr/1B2R2R/nq4Q1/q2Q1q2/NkPb3N/1r3NK1/rp4q1/1n2r2N w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h6 e4 b6 g5 c5 exf5 cxd4 b4 axb4 f6 Kf7 Be3 Ke6 f5+ Kd6 Bc1 Kc6 g6 Bb7 Bg5 hxg5 Qd3 Ba6 Qe2 Bc4 Qd1 Bf7 gxf7 Qe8 Qg4 Qc8 Qd1 Qd8 Kf2 Kc5 c4 e5 a4 d5 h4 g4 h5 g5 a5 g3+ Kg2 b5 h6 b3 h7 g4 a6 e4 a7 b4 Na3 d3 Rh5 d4 Rh3 d2 Qe2 d1Q Rh6 e3 Nf3 b2 Qd3 b1Q Nb5 b3 Nd6 e2 Ne4+ Kb4 Nf2 e1R Nh1 Bc5 f8N b2 f7 Qb6 f6 Qa4 Ng6 Na6 f8Q Qaa5 f7 Nf6 Qd8 Nd5 f8N Nc3 Qd5 Rb8 Qc2 d3 a8N d2 Nd7 d1R Ngh4 Bd4 Qg6 Qf5 Nc5 Nb1 Na4 Rd3 Rh5 Ra3 Bd3 Ra2 Be4 Rhd8 h8N Rdc8 Nf7 Rh8 Rh7 Rb7 Ng1 Rbb8 Nd8 Rb7 Nf2 Rb8 Kh1 g2+ Kh2 Rb7 Kg3 Rb8 Ngf3 g1Q+ Ng2 Qh1 Re7 Qh7 Ngh4 Qg8 Nh1 Rb7 Kh2 g3+ Kg2 Qg5 Kh3 g2 Rh7 Qf5+ Kg3 Nc3 Rd1 Nb1 Rd2 Rb8 Re2 Rb7 Bc2 Rb8 Ree7 Rb7 Be4 g1Q+ Ng2 Qf1 Ngh4 Qa7 Qd7 Ka3 Kh2 Rb3 Bb7 Kb4 Kg3 Q7b6 Qd5 Qg2+
2r2N2/Kb3Q2/3PNb2/1qN1Q1Np/Bq3n2/1bnN2Rb/1Rq2Nq1/5k1b w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 h4 dxc4 h5 Ra7 b3 Bd7 Bb2 Bc8 Bf6 Ra6 f4 gxf4 g5 e5 Be7 Rh6 Bc5 Rg6 hxg6 e4 Bf2 e3 Qc1 exf2+ Kd1 Qd6 Kc2 Qd4 Qd1 Qf6 Kc1 Qd8 Kb2 Ke7 Kc3 Kd6 Kd4 h5 e4 f5 d3 c3 b4 a4 b6 f3 b5 c2 g7 c1Q g6 f4 b7 a3 b6 a2 Nh3 Nf6 g8N Qc6 g7 Be7 Nh6 Nd5 g8Q Qb5 Ng4 Na6 b8N Bb7 Ne5 Bf6 Rh2 Nab4 Qe1 Qe7 Na6 Nc3 Ng5 Nbd5 Qf7 Rc8 Nc5 c6 Be2 f1B Bd1 f2 Nd2 f3 Ba4 Bg2 Rh3 f1B Rg3 f2 Rb1 a1Q Rb2 Qa2 Qe2 Ba8 b7 Bh1 b8N Bh3 Nbd7 f1B Nf8 Bb7 Qe3 Nf4 Qe1 Qbb3 Qa1 Qc2 Qe1 Qab1 Kc4 Bfg2 d4 Bf3 d5 Bd1 Ned3 Qe8 Ndf3 Qg2 Nf2 Bb3+ Kb4 Qe5 Ka5 Qd4 Kb6 Qb4+ Ka7 Qd3 Ncd7 c5 Nfe5 Qdb5 Ned3 c4 N7c5 Qd7 Nc1 Ke5 d6 Kd4 e5 Qdb5 e6 Nd1 e7 c3 e8N c2 Na2 c1Q Nc7 Qc2 Nc1 Nc3 N1d3 Qc1 Rg4 Qc2 Qa1 Ke3 Rg3+ Ke2 N7e6 Qd7 Qc1 Qe8 Qe3+ Kf1 Qe5 Qeb5
nB3nB1/1B1n4/nPK2b1B/2nbB3/krr1Rn2/1N3p2/r1Q2B2/2Q1Nr2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 b4 h5 Kf2 f5 Ke1 f3 Ra6 f4 Rg6 Qf6 Rg5 Qf5 gxf5 Ba6 Rg3 Bc8 Rg4 hxg4 Kf2 d5 e4 Kd7 c4 g5 h4 a5 b6 Kc6 c5 g3+ Ke1 g2 Kd2 f2 Kd3 Kb5 f6 a4 b7 a3 c6 a2 h5 a1N e5 g4 h6 g3 h7 f3 c7 Be7 e6 Na6 b8B Nb3 f7 Ka4 f8B Bf6 e7 Bb7 Be2 f1R Qe1 Nbc5+ Kd2 d3 Ke3 d2 c8B d1R b5 Rd4 e8Q Rb4 Nh3 g1N Nf4 g2 Qg6 Nh3 b6 g1N Nd3 Nf4 Rh4 Nfe6 Re4 Nh3 Bh6 Nhf4 Nd2 Nf8 Nb3 Bc6 Bb7 d4+ Kd2 Bd5 Bb2 Bd8 Qc1 Bf6 Ne1 d3 Ke3 d2 Bc4 Ra7 B2e5 d1N+ Kd4 Nc3 Qg2 Ra8 Qgc2 Nb5+ Ke3 Nbc7 Kd4 Bg5 Qd3 Nf6 Qdc2 Rg8 h8B N6d7 B8g7 Be7 Bgf6 Rg4 Bh4 Ra7 Bg3 Na8 Bf2 Bg8 Q1b2 Bf6 Qbc1 N4e6+ Kd5 Nf4+ Kc6 Bd5+ Kd6 Bc6 Bf7 Bd5 Bg8 Ne2 Re3 Rgc4 Re4 Nf4 Q1b1 N6c7 Qbd1 Kb5 Qcc1 Ra2 Qdd2 Ka4 Qdc2 Be6 Kc6 N7a6 Q1d2 Bf7 Qdc1 Bd5+
Bn3Bq1/bNRRR1R1/kPr5/1p3bR1/1Q1q4/4r3/Kn1Bqp2/2B1r2b w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 gxh5 Rh7 Kf2 Rh6 Ke1 Rh8 a4 Qd7 b4 Qd6 a5 Qd8 a6 bxa6 b5 Ne7 b6 Ng8 Nc3 Kd7 Nb5 axb5 Rb1 Ke7 Ra1 Ke8 d4 Kd7 Kd2 g5 Kc2 f5 Kb3 a5 e4 c5 h4 a4+ Ka2 f3 h6 a3 d6 Kc6 d7 Kb7 h7 c4 e5 c3 d5 c2 d6 g4 h5 f2 h6 f4 e6 g3 e7 f3 e8R g2 Re7 Qe8 d8R+ Ka6 d7 Nf6 Qd2 Nh5 Ne2 g1Q Qb4 Nf4 Ng3 Nd3 Rh5 Nb2 Bg2 f1B Ne4 f2 Rg5 Rg8 h8R Rg6 h7 Rc6 Bf3 Bg2 Nd6 Bh1 Rhg8 Qg3 Bd2 c1R h8B Re1 R8g7 Qe5 Nb7 Qe2 Rd1 Qf7+ Bd5 Qg8 Rde8 Ra7 d8B Bf5 Rc7 Bd6 Be7 Bf4 Bf8 Bg3 Kb3 a2 Ree7 a1Q Bc1 Nc4 Be4 Qd4 Rd3 Nb2+ Ka3 Qf6 Rdd7 Qd4 Bd5 Be5 Ka2 Rc4 Na5 Qdd3 Rh7 Nc6 Rc8 Re4 Rhf7 Bb8 Bc3 Qd4 Rfg7 Rc7 B3d2 Re6 Bg2 Ba7 Bd5 Nb8 Ba8 Rc4 Nb7 Re3 Rcc7 Rc6+
1N3K2/p1NN1R1n/BqQ1qPpQ/2rb2N1/N1b5/3r2R1/2nk4/2q2rbN w - - 0 1 illegal: No possible last move
qN1R2Qn/1B1Q1p1r/1rQB3k/R2r2r1/Q1QP3K/1r1p2Q1/3b1b2/1n3n2 w - - 0 1 legal: proof: c4 b5 h4 d5 a4 dxc4 axb5 g5 Rh2 gxh4 Rh3 e5 Rh1 e4 d4 Nd7 Na3 Ke7 Nc2 Qe8 Nb4 Bb7 Nd3 exd3 e4 Nb8 f3 Qd8 e5 Be4 fxe4 Ke8 Kf2 h5 b4 a5 g4 c5 b6 a4 b7 a3 g5 h3 Kg3 a2 b5 h2 b6 c3 e6 c4 e7 c2 e5 h4+ Kh3 c3 g6 Ra3 g7 Rh6 Qe2 Rb3 Qe4 Nc6 b8Q Na7 b7 Nb5 Ba3 c1R Qf4 c2 Be2 Rb6 Bd1 Nc3 Qf5 Nb1 Qa7 Qa8 Bf3 Rf1 Qe4 c1B Bd6 Be3 Qa6 Bf2 Qc4 Rc1 Kg4 h3 Bg2 Re1 Nf3 Re3 Re1 h1R Kg5 h2 b8Q+ Kd7 Qbc7+ Ke8 Qg4 Re4 Qg3 Rg4+ Kh5 Rg5+ Kh4 Nh6 g8Q Ng4 Qh7 Bg7 Q7c5 Bh6 Qg8+ Kd7 Qa4+ Ke6 e8Q+ Kf5 e6+ Ne5 e7 Kf6 Qec6 Ng6+ Kh3 Rd5 e8Q Nh8 Qed7 Bd2 Ne5 Rg1 Qcc4 h1R+ Kg4 Rh7 Rc1 Rgh1 Rg1 R1h5 Rh1 Rf5 Rh5 Rg5+ Kh4 Nc3 Rb1 a1N Bf3 Nc2 Bg2 Ra3 Rb5 Rb3 Ra5 Ne3 Be4 Qb8 Ra8 Qe8 Rd8 Nb1 Qcb7 Rc5 Rc8 Nf1 Nc6 Rgg7 Ra8 Qb8 Qbc7 Qa7 Rd8 Qa8 Nb8 Rg6 Bb7 Rcb5 Qge8 Kg7 Qc7c6 Bg5+ Kg4 Bd2+ Rg5 Ra5 Qg8+ Kh6 Kh4 Rab5 Re5 Rg5 Rd5 R5b4 Ra5 R4b5 Qf5 Rc5 Qfd7 Rcd5
4KRn1/1BpBb1rk/1b1PBn1p/q2B3N/4b1B1/1r1Bn2Q/1n2n3/1R3Q2 w - - 0 1 illegal: No possible last move
3k4/3B1qPp/1N1n1b1B/r2R2nr/3Qpb2/1Bq3b1/2BBb1K1/QN1q2B1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 b4 fxe4 h4 g5 hxg5 Nf6 c4 Ng8 Ra3 Nc6 Rg3 Nb8 Rc3 dxc3 g4 a5 f4 e5 Kf2 d5 g6 d4 f5 d3 g5 c2 g7 d2 g6 e3+ Kg2 e4 b6 e2 f6 e1B f7+ Kd7 b5 a4 b7 a3 b6 a2 c5 a1B c6+ Ke7 c7 Ra7 Bd3 Bd4 Nf3 Nd7 b8Q Ngf6 g8B Ra5 b7 Ne5 Rh5 Bg4 c8B Qd5 Qa8 Kd8 b8B Ne8 Bd7 Bh6 f8B Nf7 Ne5 Ng5 Nc4 Bg3 Nb6 Bf6 g7 Be2 Bb4 Rc5 Qa1 Nd6 Ba7 Qf7 Qg1 d1Q Qgd4 Ra5 Be3 c1Q Bbd2 Qc3 Bc2 Qd5 Bge6 Re8 Bf7 Qf5 Bfb3 Ree5 Bg1 Qg6 Bb8 Qf7 Ba7 Ne8 Bb8 Red5 Bbf4 Nd6 Bfe3 Nf3 Re5 Bhf4 Rg5 Rdc5 Rd5 Ng5 Qb2 Nh3 Rf5 B4e5 Bh6 Bef4 Qa1 Rcb5 Re5 Rd5 Re7 Rg5 Re5 Rh5 Rd5 Ng5
Knqr2QB/2RP1nr1/1NR1B1bR/1b2rp2/4n2B/1n5R/k2B1p2/qR6 w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 h4 gxf4 a4 b5 axb5 e5 g5 Ba3 Nc3 Be7 g6 Bg5 Nd5 f3 Nf4 exf4 hxg5 Qd6 Qc2 Qf6 Qd1 Qd8 Kf2 Ke7 d4 Kd6 b4 Kd5 e4+ Ke6 d5+ Kd6 b6 a5 e5+ Kd7 g7 f5 b7 c5 g6 h5 d6 Kc6 e6 Kb5 d7 h4 e7 a4 e8R a3 Rb1 a2 Ne2 a1Q Rh3 c3 Qd5 Ka4 b5 c4 b6 c2 Re6 c3 Bd2 Ka3 Rc6 Nh6 g8R c1R g7 c2 Nc3 Rh7 Bc4 Nf7 Rh8 Re1 g8R c1N Na4 Rg7 Rhh6 Nb3 Qe6 Re5 Qd5 Na6 b8B Ka2 b7 Qc7 Ba7 Nb8 Bd4 Qd8 Nb6 Qf8 Rhh1 h3 Rhc1 h2 Rgh8 h1B Rc3 Nd6 Qg8 Nf7 Be6 Bg2 R8h7 Bf1 Rh3 Bc4 R7h6 Be2 Rc7 Bd1 R3c6 Qc5 Kf1 f2 B4c3 Bg4 Kg2 f3+ Kg3 f1N+ Kf4 f2 Bd4 Na6 b8B Bh5 Bb2 Bg6 Bd4 Re1 Bf6 Ng3 Bh4 Qf8 Ba7 Ne4 Bb8 Rc1 Ke3 Rc2 Kd3 Rb2 Kc4 Qe8 Ba7 Nb8 Kb5 Bb7 Na4 Qc8 Bd4 Ra5+ Kb6 Re5 Ka7 Ba6 Nb6 Bb5 Ka8 Rc2 Bb2 Rcc5 Bc4 Re8 Be6 Rd8 Be5 Rh7 Bef6 Re5 Bh8 Rg7
B2nqR2/1r2bb1k/n2b1R2/1N3N1n/R2R1r1K/Rp3P2/1pQ1n1N1/2N1b3 w - - 0 1 illegal: No possible last move
3N4/R1rQ1b1r/1Q3r2/1Pn1Nn2/1N4n1/bNp1nr2/N1RNp1qk/1K2B3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 f4 g5 g4 gxf4 g5 h6 Be2 h5 Bg4 hxg4 b4 Kd7 d4 Kd6 Kd2 e5 Kc2 a5 h4 c5 g6 c4 b6 f3 b7 g3 g7 a4 b5 a3 h5 c3 h6 g2 h7 f2 Rh5 f1N Rg5 e3 Rg3 e4 Nd2 a2 Qg4 e2 Ngf3 g1R Rg2 e1R Nb3 e3 Nfd2 Nf6 g8Q Be6 Q8g6 Nc6 b8N Bf7 Na6 Rc8 Nb4 Rc7 Rh2 Rg3 Rf2 Rg8 h8N Qa8 Qh6 Re2 Ng6 Rh8 Ne5 Ne7 Qgg7 Nf5 Rh2 Ke7 d6+ Ke6 d7 Rf2 d8N+ Kd6 d5 Rh7 Ndc6 Rgf3 Qg4 Be7 Qd4 Qg8 Qb6 Qg2 Qg7 Ng4 Ned3 Kd7 d6 Ke6 d7 Kd6 d8N e2 Nde5 Bf8 Rb1 Be7 Rb2 a1N+ Kb1 N1e3 Na2 Kd5 Rc2 Ba3 Rh6 Rf1 Re6 R1f2 Re7 Rf1 Ndc4 Ke4 Ncd2+ Kf4 Ncb4 Kg3 Rd7 Kh2 Re7 Rc6 Rb7 Rc7 Ra7 Be8 Qd7 Bf7 Ndc4 R1f2 Bd2 Rf1+ Be1 R1f2 Nbc1 Nb3 Nd2 Nc5 Ncb3 Nd4 Na6 Rf6 N6b4 Ndf5 Qbe6 Rf4 Qb6 Rf3
1K5b/4Nb2/1QN3pn/2N1qrNN/BbqP2kB/4p2n/NQ1bn3/3Rb3 w - - 0 1 legal: proof: f4 a5 b4 d5 e4 dxe4 c4 f5 a4 b5 g4 bxc4 gxf5 h5 f6 Nh6 f5 Ng8 Ra3 Ra6 Rg3 Rb6 Rg4 Rb5 axb5 hxg4 Kf2 Kf7 Kg3 c5 Kf4 e3 Ke5 c3 d4 c4 h4 g3 h5 a4 h6 a3 b6 g2 b5 e2 b7 e1B h7 c2 b6 a2 Nh3 a1B Nc3 g1N Nf4 Nh6 Nh5 Qe8 Bg5 c1B Bh4 Nh3 Na2 c3 Qb3+ Be6 Bb5 c2 Qb2 Bcd2 Ba4 Na6 b8N c1Q b7 Nc5 Nc6 Qc4 b8Q Ne4 Q8b6 Nc3 Rf1 Bd5 Rh1 e6 Rf1 Be7 Rh1 Bd8 Kd6 e5 Rf1 Be7+ Kc7 e4 Rg1 Bd8+ Kb8 e3 Rh1 Rf8 h8N+ Kg8 f7+ Kh7 f6 Ne2 Ng6 Qe5+ Qc7 Bb4 Nge7 g6 Qd6 Bed2 Rd1 Be6 Qc1 Bac3 Qb2 Be1 Qc7 Bcd2 Qd6 Ng8 Qc7 Kh6 Qd6 Re8 f8N Bf7 Nd7 Rf8 Nc5 Nf2 Bg3 Kg5 Bh4+ Kg4 Qc7 Nh3 Qd6 Be6 f7 Nh6 Qc7 Rg8 f8N Bf7 Nh7 Rf8 Nc8 Be7 Ng5 Bf6 Qd6 Bh8 Qc7 Be8 N8e7 Rf5 Qd6 Bf7 Qc7 Qg7 Qb6 Qe5+
kB2R2q/rbn2BRR/1Pn2nB1/p1RN2r1/2K1q1nn/8/1r1Qp3/3B3B w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h4 Qb6 g4 Qd8 f5 Qc7 Nc3 Nc6 Nd5 Nb8 Nf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Qd8 Ke2 h5 b4 d5 c4 Kd7 f6 Kc7 g7 Kb7 b6 e5 b5 a5 g6 h4 f7 d3+ Kd2 h3 Kc3 e3 f8R e2 c5 e1N Rb1 d2 Rb2 h2 Nh3 d4+ Kc4 e4 Rc2 d3 Bb2 f3 Nf4 f2 Nd5 e3 Re8 e2 Bg2 f1R Be5 Nf6 g8B Rh5 g7 Nc6 Bb8 Ra7 Bf7 Rg5 g8B Nf3 Bg6 Ka8 B8f7 Bb7 Re7 Ncd4 c6 Qh8 c7 Nh4 c8B Nc6 Bcf5 Re1 Qc1 d1N Qd2 Nc3 Rg1 Rc1 Bh1 Rb1 Rg3 Rb2 Rh3 Nf3 Rh7 Nh4 Rc7 Na4 Bd7 Nc5 Rc1 Na6 Rg1 Ncb4 Rc5 Nc7 Qc2 d2 Bg2 d1N Ne3 h1Q Bd3 Rh5 Qd2 Ra2 Bde8 Qh2 Bh1 Bc6 Rd5 Rg5 Rc5 Ne4 Nd5 Q2e5 Bd7 Ne6 Bd6 Ra6 Rg3 Rf5 b7+ Ka7 b8R Ndf2 Bb1 Nf6 Re8 Bb7 Rb8 Rb2 Rgg7 Rg5 Bbg6 N2g4 Re8 Qf5 Bb8+ Ka8 b6 Nc7 Bb5 Ra7 Ba4 Nc6 Bd1 Qe4+
B2Q4/p1q2RK1/1N5P/3q1nN1/n3r1bN/1q1NB3/qB1N2p1/2Bkrn1q w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 b4 h5 Bg5 f5 Be3 f2+ Kd2 f4 Ra6 f3 Rg6 Bd6 Rg4 Bf4 gxf4 hxg4 Kd3 Qc7 Bc1 Qb6 Kd2 Qd8 Kd3 Ke7 Ke4 Kd6 Kf5 Kd5 Kg6 Ke4 h4 d5 c4 d3 b6 g3 b5 d2 c5 Ke3 f5 d4 f6 g2 b7 d3 c6 Be6 b6 Bg4 f7 Be6 f8B Bb3 c7 Nh6 c8N Nd7 b8N Qe7 h5 Qe5 b7 Be6 Na6 Bg4 b8B Nc5 Nb6 Na4 Nb4 Nf5 h6 Qc7 Nh3 g1Q Bg2 f1N Ng5 f2 Bb7 Qg2 Bc5+ Nd4 Rg1 Re8 Bd5 Re4 Rh1 Qb7 Be5 Qc7 Bb7 Re8 Ba8 Ng3 Re1 f1Q Kh7 Qfh1 Rf1 g6+ Rf7 Nf1 Bf6 Kf2 e3 Nf5 Bfb2 Rc4 e4+ Rd4 Nf3 g5 e5 Ke3 e6 Qgh2 Bf8 Re4 e7 Q2g2 Nh4 Qgh2 Qb3 Ke2 Qd5 d1Q Nd2 Qb3 Qd8 Kd1 Bfg7 Re1 Bgd4 Q2g2 Be3 Qa2 Nb3 d2 Nd3 Qd5 Kg6 Be2 Kf6 g4 Kg6 g3 Kh7 Rf8 e8N g2 Nd6 Re8 Ne4 Bg4 Ng5 Re4 Kg8 Ke2 Kh8 d1Q Nd2 Q1b3 Kh7 Kd1 Kh8 Nd4 Kg7 Nf5+
4knq1/1Nb4r/2N2pbr/4qpb1/4b1Q1/RbNN1bNQ/3B1R1P/2N2K2 w - - 0 1 legal: proof: f4 a5 g4 c5 d4 cxd4 b4 axb4 f5 h5 gxh5 e6 f6 Ra4 Bh3 Ra8 e4 d6 e5 Kd7 Bf5 exf5 e6+ Kc6 e7 Nd7 e8N Ne7 fxe7 Nf6 Ke2 Ng8 Kd2 Bd7 Ke1 Bc8 a4 Kd7 c4 b5 c5 b3 a5 d5 h6 d3 a6 b2 h7 d2+ Ke2 d4 a7 b4 Na3 b1Q Bb2 b3 Nb5 d3+ Kf2 Bb7 Qf3 d1B Ra3 d2 Ned6 Be4 e8N Be7 Qg4 Bg5 Bc3 b2 Nb7 Nf6 Kf1 Qa1 Ned6 b1B Ne2 Qg8 Nc1 Bdf3 c6+ Ke7 c7 d1B c8Q Nd7 Bd2 Qe5 Nc3 Bb3 Qh3 Rb8 a8N Nf8 Nb6 Ra8 Nd7 Ra6 Ndc5 Rc6 Ne8 Rh6 Nf6 g6 Nh5 B1c2 Qc7+ Ke8 Ng3 Bed5 Nd8 f6 Qa5 Bf4 Kf2 Bf7 Qb4 Be3+ Ke1 Bb1 Qf4 Bbe4 N5d3 Bb6 Nb7 Bc7 Rf1 g5 Nge2 g4 Ng3 Bg6 Rf2 Bb6 Kf1 Bc7 Nge2 g3 Qfg4 g2+ Kg1 Qgd5 Ng3 Rg8 h8N Rg7 Nf7 Rgh7 Nfd8 Qc4 Re2 Qg8 Kf2 g1B+ Kf1 Bd4 Rf2 Be3 Nc6 Bg5
1rB1QqQ1/1Q2rq2/RnQ1pK1N/r3rQ2/r7/2B5/P1pQ2rb/1N1b2k1 w - - 0 1 illegal: No possible last move, all moves rejected
3n1krQ/NNB5/2rp1P2/bp1NQr2/brR1K2N/n3rN2/2r5/1BbN4 w - - 0 1 legal: proof: f4 c5 e4 f5 exf5 h5 a4 a5 b4 axb4 d4 cxd4 g4 Qc7 f6 Qc6 g5 Na6 f7+ Kd8 f5 Qf6 gxf6 Nb8 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Kd2 g5 Kd3 e5 c4 e4+ Kd2 d3 Ke3 b3 h4 d2 a5 d6 c5 g3 c6 g4 h5 g2 a6 b2 h6 g3 a7 Bd7 h7 Bh6+ Kd4 e3 f8N Ke8 c7 e2 c8N e1R Qc2 d1R+ Bd3 Rd2 Nf3 g1R Qc3 g2 Rh4 Rc2 Be3 Rgf1 Ng6 g1B Ke4 Ne7 Qe5 Na6 Nc3 b1R Nd1 Rg8 h8Q Nc7 Rf4 b6 Ngh4 Kf8 f7 Ba4 Rg4 Rb8 a8N Nb5 Na7 Nc6 Nc7 Rc8 Nd5 Nd8 Rf4 R2c6 Bc2 Rb2 Bb1 Na3 Rg4 b5 Rf4 Ree2 Rg4 Rh2 Bb6 Bc1 Bc7 Rb4+ Kd3 Ne6 Bb6 Rcc2 Nd4 R8c6 Bc7 Rhe2 Re4 Rf4 Ndf3 Bb6 Rc4 Rg4 Re4 Rg5 Rc4 Rh2 Ke4 Ba5 N5e3 Ke7 f8N Rc3 Nd7 Rhc2 Nc5 Kf8 f6 Rf5 Nd5 Nd8 Nb7 Re3+
2Nn3N/2pq2r1/N1B1rk2/nPn3NR/1K1r1BB1/pN1r4/2qBn2Q/3b4 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 b4 h5 Ba3 f5 Bc1 f4 Ra6 Be7 Rg6 Bd6 Rg4 hxg4 Qa4 f2+ Kd1 f3 Kc2 Bf4 gxf4 Bb7 Kb2 Rh3 Qd1 Rh8 Kc2 Bc8 Kc3 Ke7 h4 a5 d4 g5 e4 g3 h5 g4 f5 g2 e5 g3 b6 a4 h6 a3 h7 Kf7 d5 Nd7 b5 Nh6 e6+ Kf6 d6 Qg8 e7 Qg6 e8B Ra6 b7 Nc5 b8N Nf7 d7 Re6 Qd6 Nd8 Be2 f1Q Kb4 c3 Bf4 f2 Nf3 g1R Na6 c2 Rh5 c1N Nbd2 g2 Nb3 Qd1 Ng5 f1R Bg4 Rf3 Qd2 Rg8 h8N Rg7 Qc2 Rd3 Qd2 Ndb7 d8N Qh7 Qf2 Qc2 Bc6 Rgd1 Ndf7 g1N Nd6 Nd8 Qh2 Bb7 Nc8 Nge2 Nd4 N1b3 Bd2 Na5 Nb3 Rg8 Bf4 Qd7 Bd2 Ng3 Bf4 Rg7 Bd2 Ke5 f6 Ba8 f7 Kf6 f8B Ne2 Bh1 Bf3 Bd6 Ng3 B6f4 Be2 Bc1 R1d2 Bg2 Bd1 Bc6 Ne2 Nd6 Rd5 Nc8 R2d3 Bcd2 R5d4+
1Q3q2/r2Bb1rn/P1p1rq1N/2N5/1b1nNpNb/R3K1BB/2k4p/5B1N w - - 0 1 legal: proof: c4 f5 e4 fxe4 b4 d5 cxd5 a5 f4 axb4 a3 g6 f5 Kf7 f6 Ke8 g4 Be6 a4 Ra6 h3 Qd7 g5 Bg4 hxg4 Ra8 Ra3 Qc8 Rf3 Qd8 Rf5 gxf5 Ke2 Kd7 d4 Kd6 f7 b5 a5 h5 a6 e5 g6 b3 g7 h4 g5 b4 g6 h3 Nc3 h2 Bf4 e3 Bg3 b2 Qb3 b1R Nh3 Nf6 g8B Rh5 g7 Rg5 Nf2 Ra7 Bh3 Be7 f8N Nh7 Be6 Nc6 g8B Rg7 Nd7 Qf8 Nf6 Re1+ Kf3 e2 N6g4 Qf6 Ke3 Qf8 Qb2 b3 Bd7 Qf6 Qb1 b2 Rf1 Qf8 Nh1 Qf6 Rf3 Qf8 Qc2 b1Q Qb2 Qf6 Qb7 Qb4 Qa8 Qb8 Bge6 Qbf8 Qb8 Rb1 Bf7 e1B Bg8 Rb6 Bge6 Nd8 Bb5 Rc6 Bd7 Ne6 Bbf1 Rb6 Rf4 e4 Rf2+ Qe5 Ra2 Rc6 Ra3 Bd2+ Ke2 e3 Kf3 e2 Kf2 e1B+ Kf3 Bh4 Ne4+ Ke7 Ke2 Bb4 Ke3 Qef6 d6+ Kf7 d5 Nd4 Be6+ Kg6 d7 Be7 d8N B1b4 Bd7 Re6 d6 c6 Nf7 Kh5 Bc8 Kg6 d7 Kh5 d8N Kg6 Bd7 Kh5 Kd3 Kg6 Nc5 Kh5 Nd6 Kg5 Bf2 Kf4 Bg3+ Kf3 Nde4 Rb7 Nf7 Ra7 Ngf2 Nb3 Kc2 Ke3 Nh6 Kd4 Kd1 Ke3 Nfg4+ Kd4 Nd2 Kc3 Nde4+ Kb2 Ke2 Kc2 Kf2 Nd4 Ke3 f4+
N2r1Qnb/k2pr3/N1qbp3/3p1BQ1/3RqQ2/1P3n2/Q3QQKq/b4R2 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c6 e4 fxe4 g4 h6 f4 Ba6 b6 Kf7 d5 cxd5 f5 Bd3 Bg5 e3 f6 Bf5 gxf5 hxg5 Be2 Ke8 Bd3 Rh4 Bf1 Rh8 h4 a5 c4 g6 b3 e2 Kf2 e1Q+ Kg2 g4 h5 e6 c5 g3 h6 a4 h7 a3 b7 a2 c6 g5 c7 g4 c8Q Ra3 f7+ Ke7 f6+ Kd6 Qcc1 Na6 b8Q+ Nc7 Rh4 Qe4+ Nf3 Bg7 Bd3 Ra8 Nd2 Qc8 Nc4+ Kc6 f8Q Nb5 f7 Nd4 Qbf4 Kb7 Qe2 Qc6 Nb6 Re8 Na8 Ka7 Qcd2 Rd8 Rf1 a1B Qe7 Be5 f8Q Bd6 Qeg5 Re8 Bc2 Re7 Qde1 Nf5 Q1f2+ Nd4 Kg1 g2 Ne5 Bb8 Nd3 Bd6 Kh2 g3+ Kh3 g1Q Nb4 g2 Na6 Qh1+ Kg3 g1B Bd3 Qe5 Bf5 Qee4 Rg4 Qh6 Qa2 Qh5 Qfe2 Nf3 Kg2 Bb6 Qff6 Bd8 Qd4+ Bb6 Qdf2 Bbd4 Rh4 Nf6 Rg4 Rd8 h8Q Qh7 Qf8 Ng8 Nb6 Bh8 Na8+ Qe3 Qe5 Qh6 Rd4 Qe4 Qef4 Qh2+
2N4n/2q5/1QQ2Rrr/2Bp1R1R/N1p5/1R1nbP2/pn1RKn2/R1rb2k1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 d4 gxh4 c4 c6 d5 cxd5 c5 Bb7 Bd3 Bc8 Bc4 dxc4 g4 Kf7 b4 Kf6 g5+ Ke5 b6 Ke4 g6 d5 b5 h5 g7 a5 c6 e5 b7 h3 b6 a4 f6 a3 f7 h2 c7 a2 Be3 h4 Qh5 h3 Bc1 Nc6 b8Q Nb4 b7 Nd3+ Kf1 Nh6 g8R Ra6 Nf3 Bf5 c8R Bc5 f8R Qc7 Qe8 Nb2 Rg2 Be3 Ke2 Rg6 Nd4 Nf7 Qc6 Rhh6 Nb5 Nh8 f3+ Kf4 Nd6 e4 Rf2 Kg3 Rce8 Qh7 Rf6 Qc7 Rff1 Kg2 Re5 Qb6 Rd1 Qc7 Rhf1 h1N Rd2 h2 Nc3 Nf2 Nc8 h1R Na4 Kh2 Qa7 Kg2 b8R Rg1 Qab6 Kh1 Rfd1 Rf1 Rc2 Kg1 Rd3 Rd1 Rb3 Rf1 Bd2 Rc1 Ra8 Bg5 Bb4 e3 Rd2 Bc2 Bc5 Ne4 Rf7 Bd1+ Ke1 Bf4 Rh5 Bg5 Rb8 Bf4 Rff5 Bc2+ Rd1 Bg5 Ne7 Bf4 Rbf8 Bg5 R8f6 Bf4 Qbb7 Bg5 Bd6 e2 Bc5+ Be3 Nc8 Nf2 Qb8 Bd4 Kd2+ e1N Ke2 Be3 Rd2 Ned3 Qbb6 Bd1+
2r1R1qk/2n2B1p/1n1QR1b1/1R3Bp1/2rPR1n1/BBp2K2/5B2/1n2r1Nb w - - 0 1 legal: proof: h4 d5 d4 e5 Kd2 exd4 a4 g5 c3 gxh4 Kc2 b5 axb5 d3+ Kb3 d2 Kc2 Be7 Ra5 Bd6 Ra1 Bf8 Kd3 d4 Ke4 f6 Kf3 d3 g4 Ne7 g5 Qd4 g6 Ng8 Kg2 Qe3 Nh3 Bc5 Ng1 Bd4 cxd4 Qf4 Nc3 Qd6 Ne4 Qd8 Ng5 fxg5 e4 Kf8 f4 Kg7 b4 a5 e5 c5 e6 h3+ Kf3 c4 b6 h2 f5 c3 b5 a4 b7 a3 b6 a2 f6+ Kf8 f7 Kg7 f8R Nh6 e7 Ra3 e8B Ng4 Qc2 d1N Bf7 d2 Re8 Nb2 Bd3 d1R Bf5 Na6 b8B Re1 b7 Ra4 Bg3 Nc7 b8R Nc4 Ba3 Nb6 Bf2 Rc4 Qe2 Rf8 Qe6 Kh8 Qd6 Bd7 Re6 Be8 Rb1 a1N Rb5 Nc2 Re4 Rc6 Bb3 Rc4 Ra8 Qc8 Rb8 Qe6 Rd8 Bf7 Re8 Qd5 Re6 Rc8 g7+ Kg8 Bc5 Na3 Bb4 Nb1 Ba3 Bg6 Re8+ Kf7 g8B+ Kg7 Re6 Kh8 Bf7 Rc1 Nh3 Rd1 Re1 Qa8 Re3 Re1 Ng1 Qd5 Qf4 Qd8 Qd6 Qg8 Re8 Rb4 R4e6 Rc4 R3e4 h1B+
1b1Bn3/4Kq2/2p5/1rpN1b2/1P1B1qp1/kn1BQ3/nRB1BbQ1/1n2R2B w - - 0 1 legal: proof: g4 b5 f4 a5 b4 h5 bxa5 hxg4 c3 e5 Bg2 exf4 Bh3 Qe7 Bf1 Qd8 Nh3 b4 Ng1 b3 Na3 Ra6 Nc4 Rb6 Ne5 Rb4 Nc6 dxc6 cxb4 c5 Kf2 Ke7 h4 Kd6 e4 g5 d4 f5 a4 g3+ Kf3 g2 e5+ Kd5 e6 b2 e7 b1N e8B Nc3 h5 Bh6 a6 Ne7 a5 Na4 a7 Rf8 a8B+ Nbc6 a6 Nc3 a7 Na2 Rh2 Rh8 Bg6 Qd7 Qe2 Ng8 Bb2 Qf7 Nh3 g1B Qg2 Bf2 Bd3 Nf6 Re1 Ne8 Bh7 Bg7 h6 Be5 Bg6 Rf8 h7 Bd6 Bc2 Kc4 h8Q Na5 d5 Nb3 Bd4 Kb5 Qg7 Ka4 Qe5 Ka3 Qe3 Be5 d6 g4+ Ke2 f3+ Kd3 f4 Ke4 Rh8 d7 Rh6 Bh7 Rb6 d8B Rb5 Bc6 Bd7 a8B Be6 Bd5 c6 Bb7 Bb8 Ba6 Bg1 Bf5 f2 Bd3 f3 Nf4 f1N Bc2 Ra5 Be2 f2 Bcd3 Rb5 Bh7 Ba7 Ke5 Bf5 B5e4 Nfd2 Nd5 f1Q Bg6 Ng7 Kd6 Nb1 Bc2 Bf2 B4d3 Bc8 Bge4 Qf4+ Ke7 Bb8 Qg1 Be6 Bh1 Ne8 Qg2 Bf5 Qgh3 Bg3 Bef3 Be6 Bcd1 Qf5 Rb2 Qf2 Bfe2 Q2f4 Qh2 Bf2 Qg2 Qh5 B1c2 Bf5 Rg1 Qg6 Re1 Qf7+
3r4/p7/1Q1RN2R/n4q1N/bR1bQ1pn/K1kP1nq1/3RbBp1/R3R2n w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 Kf2 h5 Ra2 f5 Ke1 f4 Bh3 Na6 Ra4 Rb8 Ra1 Rb6 Ra4 Rf6 Ra1 Rf5 gxf5 Qd7 Bg4 hxg4 Nc3 Qe7 Nb1 Qd8 e4 Kd7 h4 Kd6 b4 Ke5 f6 Kd4 h5 g5 b6 c5 d3 g3 Kd2 c3+ Kc2 g2 Kb3 f2 f7 f1N b7 c2 b8Q c4+ Ka3 c3 e5 g4 e6 f3 e7 f2 e8R Bd7 h6 Ne7 h7 Bc8 b5 Nh2 b6 f1B b7 Nb4 Nh3 Qd7 Qf3 Ng6 Rd8 Nh4 Ng5 Bg7 f8R Be2 Nd2 Nc6 Nf1 Na5 Ng3 Bf6 Bf4 c1N Re1 c2 Ne6+ Kc3 Nh5 Bd4 Qe4 N2f3 Bg3 Qf7 Rfe8 Bd7 Bf2 Ba4 Rd6 Qf5 Re7 Rd8 h8R Bf1 Rhh7 Ne2 Rh6 Ng3 Red1 Nh1 Rd2 Be2 Qc7+ Bc6 b8R c1Q+ Rbb2 Qg1 Rb4 Qe1 Qb6 Ba4 Rc7+ Qc5 Be3 Qg3 Rf7 Ng1 Rff1 Qb5 Bf2 Qf5 Rfe1 Ngf3
4N2K/1rq2rn1/pr1p1R1r/2bNR1n1/1n3p1k/5P1N/1Q1NB2p/Q2N1N2 w - - 0 1 legal: proof: a4 b5 axb5 c5 b4 cxb4 d4 g5 d5 g4 d6 g3 Qd5 exd6 Qd3 d5 Qd1 d4 f3 Bc5 Be3 Qh4 Bf2 gxf2+ Kd2 Qd8 g4 Bb7 h3 Bf8 g5 Be4 Nc3 Bf5 Nb1 Bg4 hxg4 Qa5 Qe1 Qc7 Qd1 Qd8 Kd3 Ke7 Ke4 f5+ Ke5 h5 e4 f4 c4 h4 b6 d3 c5 a6 c6 h3 g6 b3 c7 b2 c8N+ Ke8 g5 d2 g7 Kf7 b7 Kg6 Nb6 Kh5 g6 Be7 Be2 f1R Nd5 Kg5 Ndc3 Bf8 Ra5 Nh6 g8N Kh4 g7 Re1 Ne7 d6+ Kf6 Rh7 g8N Ra7 e5 Qc7 e6 Rg7 Ned5 Nf5 e7 Nc6 e8N Nb4 b8Q Rb7 Ne3 Rf7+ Kg6 Bh6 Ngf6 Bg7 Nfd5 Bd4 Nf1 Ng7 Kh7 Bc5 Kh8 h2 Nh3 Rb6 Rg1 Rb7 Qc1 d1N Nbd2 b1R Rg6 Nf2 Nd1 Ne4 Rf6 Rb2 Qa1 Ng5 Bc4 Re6 Be2 Ra7 Qb6 Rb7 Qb5 Nd3 Qb3 Rb1 Qc2 R1b6 Qcb2 Nb4 Ne7 Bf2 Re5 Bg1 Nd5 Bc5 Rff5 Rg6 Rf6 Rh6+
3rbR1b/2NNbnR1/1K3r1r/1R2n1p1/1Q1B3q/2RNb3/3k2Pb/N2N2bb w - - 0 1 illegal: No proof kernel
1Bb2Qn1/Rn3q2/4q3/Q3r2r/BQpb3Q/2P1Q1QN/1n4bK/rN2qk1q w - - 0 1 illegal: No possible last move
2r2rKN/Q3Nn2/1Nrp1q1k/rR1N4/2R1n1R1/B2PRb1r/n1r5/q3R1b1 w - - 0 1 illegal: No possible last move, all moves rejected
2B1n3/1prr2Rn/bRR1Nk2/bPRqNN2/8/2Nb1rrn/q3b3/1N1QK3 w - - 0 1 legal: proof: h4 c5 f4 e5 fxe5 g5 b4 gxh4 d4 cxd4 Rh3 a5 Rh2 a4 Bb2 a3 Rh1 axb2 g4 Ke7 e4 f5 a4 h5 c4 d5 a5 d3 g5 h3 a6 h2 e6 h4 a7 h3 c5 d4 g6 d2+ Kf2 f4 c6 d3 e5 f3 g7 Na6 c7 Nf6 g8R Qd5 Rg6 Rh7 Qa4 d1B Ne2 d2 Rhg1 h1R Nec3 h2 Bh3 Be2 Qd1 Rg7 Ra3 Nh7 Rb3 Bd3 R1g3 Rg1 Bg4 Bd7 c8R B7b5 Rc5 Rc8 a8N Nc7 Nb6 Ne8 Nd7 Ba6 b5 h1R Rb4 Be2 Rbc4 Rh3 Rc6 Bd3 R4c5 Rc7 Bf5 Rf7 Rf6 Bh6 Rg7 Rgg3 Bg4 Bf5 Kf1 f2 Ke2 f1B+ Kf2 Be2 Rb6 Kd8 e7+ Kc8 e6 Bfd3 Ne5 Bg5 Qh1 d1N+ Ke1 Nf2 Rfg6 Rgf3 Rbc6 Rhg3 Rh6 Nd6 e8N Rd7 e7 Nh3 Rb6 Rc6 Nc7 Ne8 Ne6 Rcc7 Nf4 Bh4 Rhc6 Bg5 Ne6 Bc1 Na3 b1Q Bf5 Qba2 Nab1 Ba3 Qg1 Bb4 Qd4 Nef6 e8N Ba5 Qa4 Re7 Qd1 Rf7 Nf4+ Kd8 Nd6 Ke7 Bc8 Ne8 Ne6 Kf6 Nf5 Rfd7
nq3r2/2p2n1b/2Pb1Q1b/1N1R3q/4R1r1/2R1NNNp/1K1b1kb1/1q1B2NR w - - 0 1 legal: proof: e4 g5 h4 gxh4 b3 f5 Bb2 fxe4 Bd4 d5 a4 b5 Be3 d4 axb5 dxe3 d4 Kd7 c4 Ke6 f4 Kf5 g4+ Kf6 g5+ Kf5 d5 e5 d6 a5 c5 h5 b6 a4 b7 e2 Kd2 Kg4 Kc2 Kg3 f5 e1Q f6 a3 f7 e3 d7 a2 c6 h3 g6 e2 b4 h4 g7 e4 b5 e3 b6 h2 Nc3 h3 Nd5 Rh4 Kb2 Qa5 Qd4 e1Q Qf6 e2 Rc1 Bd6 f8N Rg4 Ne3 Qd1 Ne6 e1B Be2 Nh6 g8N Bd2 Nd4 Nf7 Nh6 Qh5 Nhf5+ Kf2 Nb5 Qe8 d8R Nd7 b8N a1B+ Kb1 Qeh8 b7 Nb6 Nd7 Rb8 Ne5 Na8 Ng3+ Bf5+ Ka2 Bd4 Nef3 Bh7 Rd7 Rf8 b8R Bb2 Rc5 Bbc1 Re8 Qf1 Bd1 Qd3 Re4 Qg8 Nef1 Bh6 Rc3 Bcd2 Kb2 Qh8 N1e2 Qg8 Ne3 Qh8 Re1 h1B Rg1 Bg2 Rh1 Qc5 Rd8 Qa7 Neg1 Qb8 Qg6 Qe5 Qf6 Qh5 Rd7 Bb4 Rdd4 Bd6 Rd5 Qb1+
5bBK/2rb4/2N2n1q/r2R2B1/pBpQbQ2/1qPb1B1k/n1b2B2/2qB1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 d4 e5 g5 b4 Nc3 b3 Nd5 exd4 Ne3 g6 Ng4 hxg4 f5 gxf5 axb3 f4 b4 Be7 b5 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 c5 h4 a5 b4 g3 c3 d3 h5 g2 h6 c4 b6 f6 b5 f3 g6 d6 b7 a4 h7 d2 g7 f2 b6 Nc6 b8Q Nb4 b7 Na2 Nf3 g1Q Bg2 f1B Rh5 Bd7 Ne5 Ra5 Bf3 Qdb6 Nc6 Bg2 Rd5 f5+ Kf4 Qe1 Kg5 f4 Kg6 Nf6 e4 Qee3 e5 Qb3 Kh6 Kf5 Qc7 Qeb6 b8B Qe3 Qg1 d1B Rb1 Rg8 h8B Bc2 Qd1 Bh1 Qd4 Bd3 Bd1 Bhe4 Ba3 Bc2 Bb4 Qd2 Ba7 f3+ Qe3 Kg4 e6 Kh3 e7 Qh2 Qd4 f2 e8B f1B Beh5 Bfd3 Bdf3 Qh1 Rf1 Qh2 Bd1 Qh1 Bhf3 Qh2 Rf5 d5 Qf4 Qh1 Qf2 d4 Rd5 Bc5 Qg1 Rc8 g8B Rc7 Bg7 Bd6 Bf8 Qh2 Kg7 Qd2 Be7 Qc1 Bd8 Bf8+ Kh8 Qe3 Qe5 Qg5 Qf4 Qh6+ Bh7 Be2 Qge3 d3 Qd4 d2 Bac5 Be2d3 Bde7 Ng4 Bg5 Nf6 Bde2 Qg6 Bg8 d1Q Bb6 Qc1 Bd1 Ra8 Qde5 Raa7 Bf2 Ra5 Qd4 Qh6+
1R2b1r1/NQnBqB2/1BqbB3/1N1b4/2kB2rp/1np1n3/1Q4qP/1Bn3K1 w - - 0 1 illegal: No possible last move, all moves rejected
8/2NQ2bb/1R3n2/1q2p2q/p1r1r1R1/Kn1B1k1b/P1B1npr1/2RRBR1B w - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 Nc3 h6 Nd5 h5 bxc5 gxf4 g5 Bg4 Ne3 Bc8 Ng4 hxg4 h4 Kd7 d4 Kc6 Kd2 Kd5 Kc3 f5 Kb4 e5 g6 a5+ Ka3 b5 g7 a4 h5 f3 h6 f4 h7 f2 Bd3 f1B Nf3 e3 Bd2 g3 Ng5 e2 Be1 f3 Rc1 f2 Ne6 Bh3 Rf1 Nf6 g8R g2 Rg4 Bg7 c6 g1N c7 Rg8 h8R Qe8 Rh6 Na6 c3 Bb7 c8B Qh5 Rhg6 Bc6 Bb7 Nc5 Qd2 Rac8 c4+ Kd6 d5 Nb3 Nc7 b4+ Kb2 Kc5 d6 Be4 d7 Kd4 Qd1 Ke3 d8R Kf3 c5 Qg5 c6 Qh5 Rh6 Bh7 Rdd4 Na1 Qd2 b3 Ka3 b2 Bc2 b1Q Ba6 Nb3 Bad3 Nd7 Rhd6 Nf6 Rb4 Nd7 Rb6 Nf6 Bb5 Rcd8 Ne8 Bf8 c7 Rg6 Rh4 Rg3 Rg4 Bg7 Qd1 Rc8 Bb4 Nc5 Bc6+ Ke3 Bh1 e1R Rd5 Re2 Be1 Qb5 Rd8 Nb3 Qd6 Ra8 c8B Rg2 B8f5 Rc8 Qc6 Rc7 Rdd1 Rc8 Qd6 Kf3 Qd7 Rc4 Bfd3 Ree4 Nc7 Ne2
N2kq2N/1B4p1/b1nBr1Bb/bB1n1q1R/n1KpNpP1/r2r4/4Q3/2N3N1 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 e5 d4 cxd4 f4 exf4 Ra3 h4 Rg3 hxg3 Kd2 f5 Kd3 d5 e4 a5 h4 a4 c4 g2 b6 f3 b5 f4 h5 f2 b7 a3 e5 a2 e6 a1N h6 Nf6 h7 Nh5 e7 Ra2 b6 Nf6 c5 Nb3 c6 Ra5 c7 Nc6 b8N Ra3 b7 Rg8 Be2 f1Q h8N Qf2 Rh5 Nc5+ Kc2 Qf3 Nc3 Na4 Ne4 d3+ Kd2 d4 Na6 Nd5 b8N Qf2 Nb4 Ba6 c8B Qe3+ Ke1 Qd7 Bb7 Qf5 Qc2 d2+ Kd1 Qb3 Bb5 Qe3 Qa2 Qe2+ Kc2 d1R+ Bd2 Qe1 Nd7 Qe3 Bc1 Rdd3 Nb6 Qe1 Na8 Qe3 Ne2 g1B Bd2 Kd7 e8B+ Kd8 Bg6 Bf2 Ng1 Bh4 Qc4 Qe1 Na2 Bb4 Nc1 Ba5 Bb4 Bg5 Bd6 Re8 Qa2 Re6 Qc4 Rdb3 Qd3 Bh6 Qe2 Ndc3 Kd3 Nd5+ Kc4 Rd3 Nc5 Qh4 Ne4 Qe7 Qd1 Qd7 Qe2 Qe8
2Q4B/p1Nn2Nq/1pqr4/1BnR4/b1NB2K1/P2bn1B1/k1pN4/1rq1b2B w - - 0 1 legal: proof: c4 e5 b4 c5 f4 exf4 g4 d5 a3 h5 Ra2 hxg4 Rc2 Rh4 bxc5 Nd7 c6 Rh8 c5 Nb8 Rc4 dxc4 Kf2 Ke7 d4 Ke6 e4 g5 h4 f5 c7 c3 h5 g3+ Kf3 c2 e5 Kd5 c6 g2 h6 g4+ Ke2 Kc4 h7 Kb3 e6 b6 d5 g3 Kf3 Qh4 d6 Nf6 e7 Bd7 c8B Ne4 e8N Nc5 c7 Ba4 d7 Ka2 d8B Nbd7 Nh3 g1Q Bb2 g2 Bb5 Qh6 Nd2 Qh2 Bh4 g1Q Qe2 Qc1 Bb7 Rd8 c8N Qc6+ Qe4 Bg7 Ncd6 Bc3 Ng5 Rg8 Ne6 Rg1 h8B Rd1 Nf1 Be1 Bg3 Qh7 Nc4 Rd6 Rh5 Rd1 Kg2 f3+ Kh3 f4 N6g7 f2 Qe6 f3 Nfd2 f1B+ Kg4 f2 Nc7 Bd3 Bd4 f1N Rd5 Ne3+ Kg5 Ne5 Qc8 Rd6 Kf4 Ned7 Ba8 Nf1 Kg4 Ne3+ Kg5 Qb2 Re5 Rb1 Kf4 Qb7 Kg5 Qa6 Bh1 Qc1 Rd5 Qb7 Kf4 Qc6 Kf3 Nf5 Kg4 Ne3+
1nBRB1R1/bB2n2p/1r4pr/K3pR2/bN2n2B/4Qb2/3Rqq1P/2kq3R w - - 0 1 legal: proof: g4 c5 b4 d5 e4 dxe4 b5 f5 gxf5 a6 Nc3 axb5 Nce2 c4 Nd4 b4 Nb3 cxb3 f4 Kd7 a4 Kd6 c4 Kc5 d4+ Kb6 Kd2 Ka5 c5 e5 c6 b5 d5 g6 c7 b2 d6 b1B d7 b3 Kc3 e3 f6 b2 f7 e2 f5 e1Q+ Qd2 Qe2 f6 Bc5 f8R Ba7 f7 Bc2 Ra2 b1Q Nh3 Qh4 d8R Bg4 c8B Ne7 Qe3 Bf3 Nf4 Qhf2 Nd3 b4+ Kc4 b3 Rg8 b2 f8R Qa1 Rf5 b1N Bh3 Bd1 Rd2 Nc3 Bd7 Ne4 Be8 Bc2 Ba3 Qad1 Bd6 Ka6 Kb4 Bb3 a5 Ba4 Rg7 Rf8 Rg8 Rf6 Bg4 Nc8 Bf8 Ne7 Bg7 Rc6 Bf6 Rc3 Bh4 Rc6 Ka3 Kb5 a6 Kc4 Nb4 Rf6 Rh5 Rf4 Bc8 Rg4 Rf5 Rg5 Qf4 Kc3 Qg3 Rh5 Qf4 Be3 a7 Rh6 Qg5 Nd7 Qg3 Rb8 a8B Rb6 Bab7 Nb8 Nc6 Rb1 Nb4 Ba7 Qg5 Bc2 Qf4 Rb3+ Ka4 Kb2 Qe3 Kc1 Ka5 Rb2 Nc6 Rb6 Nb4 Ba4
1R1bn2q/BN1NRQ2/k3b2p/1Nn1p2n/4P3/Kn1pN3/3b1Qr1/N2N1nr1 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 Qe2 f5 Kd2 b5 axb5 f4 Qd1 f3 Be2 fxe2 f4 e1N g4 a5 c4 e5 b4 d5 e4 Kd7 b6 Kc6 c5 Kb5 c6 h3 b7 a4 c7 a3 g5 h6 g6 d3 Kc3 d4+ Kb3 a2 f5 h2 f6 d2 g7 d3 f7 Nf3 Qe1 d1N Nd2 Na6 b8N Bb7 c8N Ng5 Ka3 Ne7 g8N Qd4 Nb3 Nh7 Ne2 Bd5 Be3 Nf5 Na7+ Kb6 Nbc6 Nf6 Nb5 Nc5+ Nca5 Be7 f8Q Bd8 Ne7 Rg8 Qf2 Ka6 Nec3 Rg2 Qf7 Ne8 Nb7 Be6 Ned5 Rc8 Rb1 a1B Rf1 h1N Rb2 Qc4 Bd4 Rb8 Ne3 Nhg3 Rb1 Nh5 Rb2 Nd7 Ba7 Qc8 Rb1 Nc5 Rg1 Nb2 Ncd1 Nba4 Rf1 Bc3 Na1 Nb3 Rg1 Rg8 Rg7 Bd2 N5d6 Qc2 Qe7 Rc8 Qf6 Bc3 Qe1 Nd2 Re7 Ba5 Qf7 Nd4 Nd8 Nc7 Ndc4 Nf1 Nd6 Rg1 Qg3 Qg2 Qgf3 Qg8 Qg3 Bb6 b5+ Ka5 Qgf3 Ne8 Q3f6 Bc7 b6 Ka6 b7 Qh8 Rb4 Nb3 b8N+ Ka5 Nd7 Ka6 Rb8 Be1 N8b7 Bd8 Qf2 Rc2 Qh2 Nac5 Nb5 Rb2 Qh4 Rbg2 Qhf2 Bd2
1BN2BR1/R3b1R1/3p1k1p/1b5r/2p2B1q/bRr2r1R/3nQrrP/nB4K1 w - - 0 1 illegal: No possible last move, all moves rejected
r2qR3/N2Rn3/kr2b3/N1R1rbn1/K2p1n1p/1NN4P/pR5N/Q1b1B1b1 w - - 0 1 legal: proof: e4 b5 d4 f5 f4 c5 a4 cxd4 axb5 g6 Be2 Bb7 Bg4 fxe4 f5 Ba6 f6 Bc8 Bf5 gxf5 Kd2 h5 c4 a5 Kc2 e5 Kb3 d5 g4 Kd7 b6 Kc6 h3 Kb7 c5 h4 g5 d3 g6 e3 g7 d4 c6+ Ka6 b7 e4 c7 f4 f7 f3 Ra2 e2 Bd2 e1B Nc3 f2 Qa1 f1R Ka4 e3 b4 e2 Rh2 Rf6 Rb2 Nh6 g8R Be6 c8N Bf2 Nf3 e1N Rg7 Ng2 Na7 Bg1 Be1 Nf4 Rhc2 d2 Nh2 Nc6 b8R d1B Rc8 Bd6 f8N Nf7 Nd7 Bdg4 Rh7 Bgf5 b5+ Kb7 b6 Ne7 Re2 Ng5 Rc5 Ka6 b7 Re8 Re4 Ng2 Rg7 Bf4 Ree2 Bc1 Rh7 Qb6 Re3 Nf4 b8N+ Kb7 Nbc6 Ka6 Ka3 a4 Na5 Qc7 Kb4 a3 Ka4 a2 Ree5 Nc6 Re7 Qd8 Red5 Rg8 Re8 Ne7 Rg2 Rgg6 Re2 Bg8 Rc4 Bge3 Rb2 Rb6 Rc7 Bg1 Re5 Rb5 Nc5+ Kb6 Ncb3 Ka6 Rd5 Rgb6 Rdd7 Re5 Rc5 Bge6
r1R1rQbn/1bpk3N/1n6/q1P1R3/pR4K1/3NN2r/p2N2nR/b1BR1b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 e5 Bh3 g5 dxe5 gxf4 g5 Rh6 Bf5 Rh8 Bg4 hxg4 Kf2 d5 e4 f5 h4 a5 c4 f3 Kg3 a3 b4 a4 c5 a2 e6 f2 e7 f1R h5 d4 b5 d3 g6 d2 g7 Be6 h6 Nf6 g8N Nd5 b6 Bg7 e5 Nd7 b7 Ne3 b8R Re1 h7 Nb6 Nh3 Kd7 e8N Ng2 Qf3 d1B Nh6 Bg8 Rh2 Bc2 Nd2 Be4 Qf2 Bb7 Nf4 Re4 Nd3 Bf6 Qf3 f4+ Kf2 Re1 Nf5 Rh1 Ke2 g3 Ne3 Qe7 Rc8 Qd6 Rh4 Rh3 Rb1 Qc6 Qf1 Qb5 e6+ Ke7 Rb4 Ba1 Nf6 Qa6 Rd8 Qa5 Rd5 Re8 Kf3 Ra8 Kg4 f3 Rhh5 f2 Rhe5 Re8 Qe1 f1B Qf2 Ne1 Rd6 g2 Qf4 g1N Rd7+ Kf8 e7+ Kf7 Rdd4 Ne2 Qf2 Ra8 e8R Ng2 Rc8 Nef4 Rdd8 Ne6 Rdd4 Ke7 Qf5 Bf7 Rd6 Re8 h8R Bg8 Rh4 Qa6 Nh7 Qa5 Rc6 Kd7 Qf8 Nef4 Rch6 Rf3 Rh1 Ng6 R6h2 Nh8 Rg1 Be2 Re1 Bf1 Rd1 Rh3
1Rn4Q/p3N1p1/R6p/R1K2BB1/RR2r1Rb/P4bqn/1Q2b2n/r1r1k1b1 w - - 0 1 illegal: No possible last move
1rBBN2n/pr1pB3/b1Rb1b2/4nQ1Q/1p1R3B/PBq4r/1Bn4k/3K2r1 w - - 0 1 legal: proof: d4 c5 g4 h5 b4 cxb4 Nc3 e5 Ne4 f5 gxf5 exd4 Nf6+ Ke7 Ng4 hxg4 Bd2 Kf7 Bc1 Ke8 h4 Kf7 f4 Kf6 c4 b5 e4 g5 a3 b3 c5 b4 e5+ Ke7 c6 b2 f6+ Ke6 c7 Kf5 f7 b1R e6 d3 e7 g3 e8Q g4 h5 g2 h6 g3 h7 Ba6 c8B Bh6 f8B Qh4 Nh3 g1R Qdh5+ Bg5 Nf2 d2+ Kd1 g2 Be7 Nc6 Ng4 Rb8 Bd8 Rb7 Nf6 Nh6 Qf8 Qh3 Ne8+ Nf7 Qc5+ Ke4 f5 Kf4 f6 Kg3 Qf5 Rb3 Bb2 Nce5 Rc1 Rf8 Rh2 Nh8 f7 Bf6 Rc6 Rg8 f8B Rd3 Kc2 d1N Bfe7 Ne3+ Kc1 Rb3 Rh1 Nc2 Kd1 Qh4 Rh2 Qc4 Rh4 Qc3 Rd4 Rf8 Bc1 Rg8 Bg5 Rf8 Bh4+ Kh2 Qhg4 Qc4 Qgh5 Rh3 Be1 Qc3 Bc4 Rf1 Bb3 g1B Rf4 Bc5 Rd4 Rf3 Bh4 Bd6 Rc7 Rfg3 Rc6 Nhf7 h8B Rg5 Bg7 Nh8 Qf1 Rg2 Qff5 Rg1+ Qf1 Rf3 Bh6 Rh1 Ng7 Ng4 Bc7 Rg1 Bc1 Rgg3 Bb2 Re3 Qff5 Rd8 Ne8 Ne5 Ba5 Rh3 Bb6 Reg3 Bc7 Rb6 Bb7 Rb8 Bc8 R6b7 Bcd8 Rg1+
5qqr/5N2/1B4pr/4BNP1/n1Bb1N1R/bNb3p1/1pk2NbK/2rnQ1B1 w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 f5 e4 fxe4 g5 Nd7 Ra3 Nb8 Rg3 Nc6 Rg2 Nb8 Rg4 hxg4 f4 Kd7 Kf2 Kd6 Kg2 Kc5 h4 Kd4 f5 c5 f6 e5 d3 b5 h5 e3 a5 g6 h6 c4 f7 c3 d6 e4 d7 e2 h7 e1B a6 b3 a7 b4 Qd2 e3 Rh4 e2 Nh3 b2 Nf2 b3 Kh2 c2 Qd1 Nh6 Nd2 Kc3 d4 b1Q d5 b2 d6 Bb7 Nb3 Na6 Be3 c1R Bc5 Be7 f8N Nf5 Ne6 Qa2 Ned4 Ne3 Nf5 Qf8 d8N Bg2 d7 Bd2 Bb6 e1B Nf7 Nc5 d8B Na4 Bc4 Ba3 Bdc7 Rb8 a8N Rb7 Qe2 Kc2 Be5 Nd1 Nc7 Ra7 Qf1 Be3 Nd5 Bd4 Nf4 Bec3 Qg1 Rg8 h8B Ra8 Bhg7 Rh8 Qe1 Rh6 Ne4 Qc5 Nf2 Rah8 Bf8 Qc8 Na5 Qb3 Bfc5 Qb4 Nb3 Qg8 Ba5 Qbb8 Bab6 Qbf8 N2h3 Be3 Bcd4 Bed2 Bg1 Bd4 Nf2 Bdb4 N4h3 Bbc3 Nf4 g3+
N5N1/NQ2bk2/2QrR1pp/1Kb2qP1/r3B1qN/2B4p/r3b3/N1rnn1N1 w - - 0 1 illegal: No proof kernel
6N1/1p1b1Rn1/rP1K4/2BR4/kpNq3q/1R2QRpn/n1r2R1N/rN3rb1 w - - 0 1 legal: proof: f4 d5 g4 h5 b4 hxg4 c4 e5 b5 exf4 b6 a6 Bg2 Ra7 cxd5 Ke7 Be4 Ra8 Bd3 Ke8 Bb5+ axb5 Kf2 Kd7 e4 f5 h4 g5 d4 c5 a4 b4 h5 g3+ Kf3 c4 h6 g2 a5 c3 a6 c2 e5 Qe7 a7 Qg7 d6 Kc6 h7 Kb5 d5 Qc7 d7 Na6 d8N Bd6 e6 Nc5 e7 Nd3 e8N Qg7 Nf6 Ne7 Nc6 Nf2 Na5 Bc5 d6 Nh3 d7 Qh6 d8R Bd7 Ra2 Qh4 Be3 c1N Rf2 Na2 Qc1 Ka4 Nc4 Re8 h8R g4+ Ke2 g3 Kd3 f3 Rh7 f4 Ke4 Rh8 Ke5 Nf5 Rf7 Ng7 Ng8 Rh6 Bd4 Rc6 Qe3 Rc7 Rh2 Rcc8 Rb2 f2 Nf3 f1R Rb3 g1Q Rf2 Rc7 Nh2 f3 Nba3 Ra1 Nb1 Bb5 Rd5 Bd7 Rc2 f2 Rcc3 Bf8 Bc5 f1R Rc2 Be7 Rcf2 Bf6+ Kd6 Bd4 R2f6 Qf2 Rf3 Qb2 Qe8 Bg1 Qe3 Qbd4 Rf2 Rd8 a8R+ Kb5 Ra6 Ra8 Raa3 Ra6 Rbb2 Rc8 Rab3 Ka4 R2f3 Rf8 Rbf2 Re8 Qd3 Re2 Qe3 Rc2
Nb2N3/B1n2Br1/2NnN1Np/2Qq2NK/pQq5/1p1b1R1b/kP1r2q1/7q w - - 0 1 illegal: No proof kernel
1k4r1/nn3p2/1bBR2p1/nB1NBNr1/2r5/1q1NNbP1/KQ2Bnp1/3N2r1 w - - 0 1 legal: proof: b4 c5 f4 e5 d4 exf4 g3 cxd4 a4 b5 axb5 h5 Ra3 h4 Rf3 h3 Rf2 Bd6 Rg2 hxg2 Na3 Be7 Nb1 Bf8 Kd2 a5 e4 d5 h4 Kd7 c4 Kc7 Kc2 a4 Kb2 f3 b6+ Kb7 b5 f2 e5 d3 c5 d2 e6 a3+ Ka2 d4 e7 d3 e8B Rh6 h5 Qg5 Ne2 Be7 Qc2 d1N Qb2 d2 Nf4 Re6 h6 Ra7 c6+ Ka8 h7 Re5 h8N Qg4 c7 Rg5 Nd3 Rb7 Nc3 Nf6 Ng6 Ne4 Nge5 g6 Be2 f1R Bc6 Bc5 Nc4 Qf3 Ne3 Bg4 c8B Rg1 B8d7 Ndf2 Ncd1 Nd6 Rh8 Bd4 Rd8 Bh5 Qc3 Bg4 Bb2 Qd5+ Qb3 Bf3 Bc3 Bc5 Be5 Qc4 Be8 Qc3 Qb2 Qb3+ Kb1 a2+ Ka1 Nc8 Rd6 Na6 Bed7 Kb8 Be8 Re7 b7 Na7 Bed7 Kc7 b8N Bb6 Be8 Kc8 Nd7 Nc5 Nf6 Kb8 Nfd5 Rc7 Bed7 Nb7 Be8 Bd4 b6 Rc8 Bed7 Rg8 Be8 Na5 b7 Bb6 Bb5 Ne4 Bec6 Nc5 Qa3 Qc4 Kb2 a1R Qb3 Rc1 Ka2 Qb4 Qb2 Rc4 Nf5 Qc3 Nd5e3 Kc7 b8N Ncb7 Nd7 Qb3+ Ka1 Kc8 Nf6 Kb8 Nfd5 Qc2 Ka2 Qc3 N1f2 d1N Nfg4 Nf2 Nd1 Qb4 Nge3 Qb3+
n1Br1R2/3pN2k/R2R3q/1bQR4/3PpQbn/np1p4/rb2RK2/4rR1N w - - 0 1 illegal: No extended proof kernel
qR3b1Q/1RN1pRN1/1R1NP3/3rnb2/1N2p2B/nk2KN1p/2b3p1/2q2r1q w - - 0 1 illegal: No proof kernel
6bQ/5pqp/KNQ5/2R1RRpb/N2n1b1B/r3pnbP/1R1r1b1k/1R1R4 w - - 0 1 illegal: Other
1R1bRN1b/4R1q1/RQpR2r1/1p1bn1p1/pK6/1NPb1R2/3r4/3kqBnQ w - - 0 1 illegal: No proof kernel
4BN2/3KppQ1/pp2R3/Pn6/b1N2p1b/RRN5/R2nr1Rr/r1q2kNb w - - 0 1 legal: proof: f4 c5 g4 g5 b4 cxb4 e4 d5 exd5 h6 Bb2 Bf5 Bf6 gxf4 g5 Bh3 g6 Bc8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kd6 a4 b6 h4 b3 c4 b2 h5 g4 a5 g3 g7 g2 c5+ Kc7 c6 Kd6 h6 a6 c7 Qd7 h7 Nh6 g8R Nf5 Ra3 Ng7 Rhh3 Nh5 Rhb3 Bh6 Qg4 Bg5 Nc3 Bh4 Qg7 Nc6 Bb5 Bb7 Ba4 Na7 c8N+ Kc7 Ke5 b1B Nd6 Rd8 Nc4 Qc8 Be8 Nb5 Ra2 Rd7 d6+ Kc6 d5+ Kc5 Raa3 Rc7 d7 Bc2 d8R Nf6 d6 Ne4 d7 Nd2 Ra2 Rc6 Rba3 Kb4 Kd5 Qc7 Rc8 Ba4 d8N Ba8 Ne6 Bb7 Nf3 g1R Nf8 Ra1 Ng1 Ba8 Rd8 Bb7 Rd7 Qc8 Rc7 Re6+ Rc6 Re3 Qf6 Re2 Rg2 Qf5+ Qe5 Qb1 Qd4 Qc1 Qg7 Rg8 h8R Ba8 Rh5 Rh8 Re5 Rh6 Re3 Bb7 Ke5 Ba8 Re6 Rh8 Rg4 Bh1 Rg2 Rh6 Kd5 Rh8 Kc6 Rh6 Nb2 Rh8 Nd3+ Kc4 Ne5+ Kd4 Rg3 Rh7 Kd7 Rh6 Rg5 Ke3 R2g3+ Kf2 Nc4 Rh8 Rh3 Kf1 Rg2 Rf2 Nd1 Re2 Rhb3 Bg3 Nc3 Rh2 Rb4 Be1 Rbb3 Bh4
1Rr4b/2p4k/1rP1Qqp1/2B1p3/1R4K1/bpnBnN2/1Qb1Q1p1/2QQQq2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 gxf5 d5 Nc3 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 Ke2 Kf7 a4 b5 f4 g6 c4 Kg7 h4 e6 d4 g3 a5 g2 h5 b3 c5 b4 a6 e3 Kf3 e2 c6 e1B a7 b2 d5 b1Q f6+ Kh7 d6 b3 f5 Qe8 f7 Bh4 f6 Bg7 f8Q Na6 f7 Bd7 h6 Nb4 Be3 Be5 Ra4 Ne7 Qe1 Na6 Bd3 Nd5 Rb4 Bc3 Kg4 Bg3 Bc5 Bf4 Nf3 Bc1 Qe7 Bf6 f8Q+ Qf7 Qfe8 Rc8 a8Q Nc3 Rb8 Bb2 Rh4 Nb4 Qa1 Nbd5 Qe2 Qf1 Qc1 Ba3 Qee1 Rd8 Qe2 Bc8 d7 Rg8 Qd6 Bh8 Qg3 Ba6 Qge1 Rc8 d8Q Qf6 Qd6 Rf8 Q2d1 Bb5 Qde5 Rg8 Q5e2 Ne3+ Kh3 Nf5 Rb4 Bc4 Kg4 e5 Qe6 Bd5 Qeb2 Be4 R8b6 Ra8 Rb8 Rc8 Qde2 Ra6 Qe1d1 Qf7 Qde1 Rb6 Q2d1 Kg8 h7+ Kg7 Qee2 Ne3+ Kh3 Qf6 Bc4 Bc2 Bd3 Kh6 Nd4 Bg7 h8Q+ Kg5 Kg3 Q1f5 Qhh1 Bh8 Qhe1 Qf1 Nf3+ Kh6 Kh3 Kh7 Kg3 Ned5 Kg4 Ne3+
N2NqnN1/Nr1Nrq2/8/1bpKP3/3b1bpR/q7/1R1nNBkB/N2n4 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 b5 axb5 f3 Qa4 h6 Qf4 gxf4 g5 h5 Bh3 Bg7 Be6 Bf8 Bg4 hxg4 Kf2 Ke7 h4 Kd6 b4 Ke5 d4+ Ke4 b6 a5 h5 f5 g6 c5 h6 a4 g7 a3 b7 a2 h7 Qd7 b5 Nf6 g8N Bg7 b6 Qc7 d6 Nd5 d7 Qc6 d8N Qa4 Rh4 Qa3 Ne6 Bh6 Nc7 Nd7 b8N Ne3 d5 Ba6 b7 Nf8 d6 Bb5 d7 Ra7 d8N Bg5 Na8 Nd1+ Ke1 f2+ Kd2 f1Q Nbc6 Qfh3 b8N Rb7 Nd7 f3+ e3 f2 Ne2 Kf3 Na7 f4 e4 Qa4 Na3 f1Q Nc2 Kg2 Rb1 Qha3 Na1 Bh6 Rb3 f3+ Kc2 f2 Bf4 Bg5 Bh2 Bf4 e5 Qa6 Rb2 Qe6 Nh6 Rg8 h8B Rg7 Ng8 Re7 Bf6 Qf7 Bg5 Qh1 Bf6 f1N Bg5 Nd2 Bh6 Bg3 Be3 Bf4 Beg1 Qe8 Bf2 Qf1 Nb3 Nc4 Kd3 a1B Ke4 Nd2+ Kd5 Ng6 Rb1 Bd4 Rb2 Nf8 Na1 Bh6 Bfg3 Qf6 Be1 Bf4 Bf2 Qff7+
B2kBBB1/q3p1nn/1p1nn3/2N2n2/q3P1Bb/B2br1Br/RR3Nq1/3K4 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 f5 g5 c5 dxc5 f4 g6 hxg6 Qd6 g5 Qd3 g4 Qg3 fxg3 a4 d5 h4 g5 c4 d4 e4 d3 f4 g2 h5 g3 c6 g4 c7 d2+ Ke2 d1N c5 b3 h6 b2 h7 Nh6 a5 Nd7 c6 Nc5 a6 Ne3 a7 Nhf5 Rh2 Bg7 Ra6 Bf6 Rh6 Qd4 Rh4 Qa4 Nd2 b1N Ba3 Ng7 f5 Nce6 Nh3 g1Q Nb3 g2 Nf2 g3 Rh2 Bh4 f6 Nd2 Nc5 Nef5 Ra5 Bd7 c8B Nc4 f7+ Kd8 f8B Ncd6 Kd2 b6 Bb5 Qa1 Bb7 Rc8 a8B g1N Ra6 g2 c7+ Ke8 B7c6 Nh3 Bc4 g1Q Ra7 Rd8 c8B Qg2 Bb3 Qa2+ Kd1 Nhg5 Bb5 Bc6 Ra6 Rd7 Ra7 Kd8 Ra6 Rg8 h8B Nh7 Ra7 Bb7 Ra6 Rc7 Be8 Bc6 Ra7 Bb5 Bcd7 Bd3 Ra6 Nh5 Be5 Nhg7 Bg3 Rh8 Ra5 Rc8 Rb5 Qa7 Bbd5 Rc7 Rb2 Rc6 Bh5 Rc8 Bde8 Qc4 Bg4 Qca4+ Nb3 Rc3 Ra2 Nf4 Bg8 Nfe6 Rb2 Bc4 Ra2 Re3 Rb2 Bd3 Ra2 Qc4 Nc5 Qca4+ Rc2 Nf6 Nh1 Bg5 Bd7 Rh3 Be8 Qf3+ Re2 Nh7 Nf2 Qg2 Rd2 Q4a6 Ra2 Bh4 Rdb2 Qa4+
2q3b1/4r1B1/1nn5/1p1r2NB/N1R1rqbR/N2Nb2p/1P1NnN1k/bNK5 w - - 0 1 illegal: No proof kernel
1RN1bb2/2q1pr2/4nb1R/krRRP1r1/1b2n1q1/3RNK2/3rpB2/1B1R2R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 h5 g4 hxg4 axb5 c5 e5 cxd4 Qe2 Qb6 Qd3 Qd8 Qe4 fxe4 Ke2 a5 h4 d5 c4 Kd7 f4 Kc7 b4 Kb6 h5 g5 f5 e3 h6 d3+ Kd1 g3 f6 e2+ Kd2 g2 Ke3 a4 f7 a3 h7 d2 Kf3 d1Q Be3+ d4 Nh3 g1R Nf2 a2 Bh3 Na6 Bf5 Nf6 Nc3 Qa4 Ng4 Ne4 Rd1 a1B Bf2 Rb8 Ne3 d3 Rh3 Rg8 h8R Nc7 R8h6+ Ne6 Bg6 d2 c5+ Kb7 b6 Ka6 c6 Rf1 c7 Bd7 c8R Qc7 b5+ Ka5 b7 Be8 Ncd5 Bc3 b6 Bb4 Rg3 Rg7 Rg1 g4+ Kg2 g3 Kf3 g2 Rd8 Nc3 Bb1 Rg5 Rd6 Ne4 Rd7 Ra8 b8R Ra7 Rc8 Rb7 Rgh1 Rb8 b7 g1B Nb6 Bh2 Rd4 Bf4 Rg1 Bg3 Rd3 Bh4 Rc1 d1R Rc5+ Qb5 Rcd8 Rd2 Rcd5 Qbc5 Nc8 Qb5 R5d4 Qbc4 R4d6 Ra8 b8R Ra6 R6d7 Rb6 R7d5+ Rb5 Rc5 Rg6 R8d5 Bf6 Rb6 Rg5 Rbd6 Ng3 Rd8 Qh4 R8d6 B8g7 f8R Ne4 Rg8 Bf8 Rb6 Rg7 Rb8 Rf7 Rh1 Rg1 Rgg6 Rg5 Rd1 Rh5 Rg2 Rg5 Rgg1 Qg4+
3b1nB1/rB1r2q1/1r3kB1/3q4/1NnNr1R1/2p2BPR/4B1b1/1BKn1q1N w - - 0 1 legal: proof: f4 a5 b4 axb4 h4 g5 hxg5 e5 fxe5 c5 Rh3 c4 Rh4 Ra5 Rh1 Ra8 Bb2 d6 Bd4 Ra3 Bc5 Ra4 c3 Bd7 Qb3 cxb3 c4 Be6 Bf2 Ra7 c5 Ra8 c6 Bc8 Bc5 dxc5 Kd1 Ke7 a4 f5 e4 h5 d4 b5 d5 f4 c7 f3 g3 b2 a5 b3 a6 b4 e6 f2 e5 c4 a7 h4 g6 h3 g7 c3 Bb5 h2 Nd2 b1N Kc1 Rh4 Ra2 Re4 Ne2 Bb7 c8B Qd7 Nd4 Nh6 g8B Nf5 Ra4 Na3 Be2 Bc6 Bca6 Ne3 Bb7 Nd1 d6+ Ke8 e7 f1Q Bh7 Kf7 e6+ Kf6 e8B Nc4 Beg6 Be7 Bg8 Bd8 e7 Qg4 e8B Nd7 Bef7 Nf8 d7 Bd5 B6h7 Qg7 Bfg6 b2+ Kc2 Bb6 d8N b1R N8c6 Rb2+ Kc1 b3 Nb4 Bd8 Rg1 Ra2 Rh1 Rc8 a8B Rc7 Beh5 Rd7 Be2 Re6 Bb1 Bg2 Bhg6 Re5 Bbf3 Re4 Bb7 Ra1 Ra5 Ra2 Rg5 Ra7 Rg4 Qf2 Rf1 h1Q Rg1 Qh5 Rh1 Qd5 Rh5 Qf1 Rh3 b2+ Kc2 Re6 Ne4+ Ke7 Nf2 Kf6 Ba2 b1R Nh1 Rb3 Bb1 Re4 Kc1 Rb2 Nbc6 Rb5 Nb4 Rb6
r1R4b/7r/3B1qBp/rr1k2qq/2r4B/B1P4N/1R1KBB2/2N1Nnrn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 g4 Qc7 Qf3 Qd8 Qf2 Bb7 Qf4 gxf4 h3 Bd5 g5 Bf7 Nc3 Bh5 Nb1 Bg4 hxg4 Qb6 Bh3 Qc7 Bf1 Qd8 b4 Kf7 c3 a5 b6 d5 f6 Ke6 b5 e3 b7 f3 b6 h6 g6 e2 f7 d3 g5 f2+ Kd2 e1R g7 d4 g6 a4 Rh5 a3 Ne2 a2 Rc5 Rh7 Rh5 Nc6 b8B Nb4 b7 Nc2 Bb2 Ne3 Rb5 Nf6 g8B Nh5 g7 Ng3 Rf5 Nh1 Be5 Kd5 Bd6+ e5 b8B Qg5 Na3 Rb1 Nc1 Be7 Rf4 e4 Nc2 Bf6 Bba3 Rb5 Rb1 a1R Be2 f1Q Ne1 Be5 Rh4 Qff6 Bac5 R1a5 f8B+ Qe6 Bf7 Bf6 g8N Bh8 Bg6 Qef6 Rb3 Qf1 Bg3 Be5 Bg4 Ng2+ Kd1 d2 Rb2 e3 B4h5 Qff5 Ned3 e2+ Kc2 e1R Nf6+ Kc6 Re4 d1R Nd5 Bh8 N5f4 Qff6 Re8 Re4 Bh4 Rg1 Nh3 Kd5 Ne1 d3+ Kd1 d2 Bcf2 Rea4 Ba3 Rc4 Bbd6 Ne3+ Ke2 Rf7 Rc8 Rh7 Kd3 d1Q+ Rd2 Qdf3 Rb2 Qfg4 Kd2 Qgf3 Bd3 Qfg4 Bhg6 Q4h5 Be2 Nf1+
1N2B1N1/N1Kn1n2/3bb1N1/4N3/2nRq2R/p1BbNR1b/1r2n2P/1b4qk w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 Na3 h5 Nb1 a5 Qd3 Ra6 Qf5 Rf6 Qg5 Rf5 gxf5 Qe7 Qh4 Qd8 Qg4 hxg4 Kd2 Ke7 Kd3 Kd6 Ke4 g5 b4 d3 c4 a4 f6 g3 b6 f2 f7 f3 b7 d2 b5 d1N b6 a3 Nc3 g2 Bd2 g4 Nd5 g3 Ne3 Nh6 Bc3 Nb2 c5+ Ke6 c6 d5+ Kf4 d4 c7 d3 Rd1 Nd7 b8N d2 b7 Qe8 Nc6 Be7 b8N Nc4 Na7 Bd6+ Ke4 Rh7 f8R Re7 Rh8 Nf7 Kd4 Kf6 Kd5+ Kg5 Kc6 Kf4 Rh3 Re5 Rh5 Rb5 Rh8 Ba6 c8N Rb2 Ne7 Bc8 Ng6+ Ke4 Rh6 Qe6 Rh4+ Qg4 Nh3 g1N Ne5 g2 Nf4 Qf5 Nfg6+ Qg4 Ra1 d1B Rc1 Bc2 Rd1 Bb1 Rd2 Nh3 Rd5 g1Q Bg2 Bc5 Kc7 Nf4 Bh3 Qe6 Bg4 f1B Bh5 Bh3 Rd1 Qg3 Rhf1 f2 N5g4 Nh8 Ne7 Rb4 N3f5 Nf8 e3 Kf3 e4 Kg2 e5 Rb5 Rd4 Ne2 Bg6 Rb2 Nfe3+ Kf3 Bf7 Qg1 Ng6 Qf5 e6 Qe4 e7 Be6 e8N Nd7 Nef6 Bf8 Be8 Nf7 Ned5 Kg2 N4e5 Kh1 Ng8 Bc5 Rfd1 Bf8 R1d3 Bb4 Rf3 Bd6+ Kc8 f1B Ne3 Nc1 Ba5 Bfd3 Bc3 Bc5 Kc7 Ne2 Nf6 Bb4 Ng8 Bd6+
BR4br/NNR1n3/1pr2n2/3q1kq1/p2P4/n1B5/3B1KB1/B1n1RBrn w - - 0 1 legal: proof: b4 d5 g4 e5 a4 h5 gxh5 e4 f4 d4 b5 Be7 e3 Bf6 a5 dxe3 Qf3 Be5 fxe5 b6 Qf6 bxa5 b6 a4 b7 Ne7 Qh6 Ng8 Qb6 cxb6 h4 Ke7 c4 Ke6 d3 g5 c5 f5 c6 a5 c7 f4 h6 a3 h7 a4 h5 e2 h6 a2 Nh3 f3 Na3 g4 Nf4+ Kf5 e6 g3 e7 g2 e8B g1Q Rb1 a1R Bc6 Qgg5 Ne6 Nf6 Bd2 Qd5 Kf2 e1N Rc1 Nc2 Nc5 Be6 Nb5 Na3 Na7 Bg8 Bg2 Rb1 Rhe1 Ra1 Bb5 Nc6 b8R Ne7 Nb7 e3+ Kf1 e2+ Kf2 Rb1 c8B+ Kg6 Rc7 Rd1 Rg1 e1N Bc6 Rc1 Bch3 Rc4 Rh1 Rg4 Bf1 Rg1 Bhg2 Kf5 Rcc8 Be6 Rc7 Rc8 h8B Bg8 Rd7 Rc7 h7 Rc8 Bb5 Rc6 Rc7 Nec2 Bg7 Nd4 h8B Ne2 Bc4 Nc1 Bb3 Nd7 Ba1 Nf6 Bd1 Nd7 Bhb2 Nf6 d4 Qg3+ Ke3 f2+ Bdf3 Qh4 Bbc3 Qg4 B1e2 f1N+ Kf2 Ng3 Bef1 Qg7 Rh4 Qg6 Re4 Qg5 Re1 Rd6 Re6 Qc6 Rbc8 Bh7 Na5 Qb5 Bb7 Rc6 Re1 Qd5 Rd8 Rb8 Ba8 Rc8 Nb7 Rb8 Rdd7 Rh8 Rd8 Bg8 Rb8 Nh1+
b1q1K3/kb1B4/1r1N1NR1/b4rN1/PN1r1B1n/8/1Rb1ppNr/1N4Rb w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Nh6 h4 Nd7 h5 Ne5 Qf3 Ng8 Qf4 gxf4 g5 Ng6 hxg6 Ra6 Bg2 Ra5 Bf1 Ra8 Ke2 Kd7 a4 b5 d4 c5 f6 Kc7 f7 Kb7 g7 e5 d6 h5 d5 e3 Kd3 h4 Ke4 e2 g6 e1R+ Be2 b3 d7 f3 Kf5 c4 Ke6 b2 d6 c3 Na3 b1B Ra2 h3 Nc4 f2 Ra3 c2 Bg4 h2 Nf3 b4 Nfd2 e4 Ra2 b3 Rg1 h1B Ne3 b2 Ng2 Ne7 g8R e3 g7 e2 Kf6 Qe8 d8N+ Ka7 d7 Rd1 Nb7 Ng6 d8N Rh2 Nd6 Rb8 Bd7 Be7+ Ke6 Rb6 f8N Nh4 Nh7 Bb7 Ng5 Ba8 Ndf3 Rd4 Bf4 c1R Nd2 Bbe4 Nb1 Rc5 Nc6+ Ka6 Nb4+ Ka7 Nc3 b1B Rb2 Bbd3 Nb1 Qc8 Kf7 Bd8 Ke8 Bab7 Rf8 Bec6 g8N Rf5 Nf6 Bc2 Rg8 Ba8 Rg6 Bcb7 Bg3 Rc6 Bf4 Ba5+ Ke7 Rb6 Kf7 Qc3 Ke8 Qc8+
4k1N1/7q/NN1pP3/BK3bnr/r1p3n1/n1b1r2N/bN1p1R2/RN1B3B w - - 0 1 legal: proof: e4 e5 b4 g5 d4 f5 h4 gxh4 c4 b6 a4 Qg5 c5 Be7 b5 Bd6 a5 Qg6 c6 Bf8 Qf3 Qe6 axb6 exd4 e5 Qd5 Qe4 fxe4 Bf4 Qa2 Bd2 Qa6 Bc1 Qb7 cxb7 Bb4+ Bd2 Be7 Bc1 Bf8 Kd2 a5 f4 c5 g4 h5 f5 h3 g5 d6 f6 h2 f7+ Kd7 g6 a4 g7 a3 Bg2 e3+ Kd3 e2 Kc4 e1R Bd2 a2 Ba5 d3 Nh3 h4 Rf1 h1B Rf2 Nf6 g8B Bg7 f8N+ Ke8 Ne6 d2 Nef4 Nbd7 b8N Rh5 b7 Ne4 b6 Ng5 Nc6 Nf6 b8N Ng4 b7 Re3 Kb5 Bf5 Na6 c4 e6 Bc3 b8N Ra7 Bd5 Bhe4 Ne7 Bc2 Bh1 Bb3 Nd7 Ra8 Ng1 h3 Nb6 h2 Nd3 Ra7 Nb2 Ra8 Bb7 h1Q Bh7 Qe4 Ng8 Qc2 Na3 Qb1 Nh3 Qh1 Re1 a1N Nb1 Ba2 Bf3 Nc2 Bd1 Bd3 Be4 Qh2 Bh1 Bf5 Bb4 Ra7 Nb8 Ra4 Ba5 Qg2 Rg1 Qb7 Na6 Qh7 Bdf3 Nh6 Na3 Bf6 Ra1 Ng4 Bd1 Bc3 Nb1 Na3+
4bq1b/rN4q1/rp2K1n1/3B4/r3NR2/N1RPRp1q/RRp3nk/1B3R2 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 g5 c4 d5 cxd5 h6 Qa4+ Ke7 Qf4 Ke8 b4 axb4 Bb2 Be7 Bd4 Bf8 Bf2 Na6 Bh4 gxf4 g5 Nb8 g6 Bd7 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 Kf3 c5 Ke4 f6 Kf5 b6 e4 c4 a4 g4 h4 g3 e6+ Kd6 h5 b3 e5+ Kc5 d6 Kd5 a5 g2 g7 b2 d7 c3 a6 f3 h6 f2 a7 Rh7 e7 Na6 e8R Nb4 e6 Nc2 e7 Ne1 Nf3 g1Q Rh2 Ng2 Bd3 f1Q Na3 b1R Rh3 Rb2 Bb1 Ra2 d3 Ba6 Rh4 Bb5 Rf4 c2 Nd2 Qb8 d8N Qf3 Nb7 Qh3+ Rg4 Ba4 Rc8 Be8 Ne4 Kd4 Rc5 Ke3 Ke6 Kf3 Rb5 f5 Rb2 Qd8 Rh4 f4+ Rg4 Nf6 g8B Nd5 Bf7 Bg7 Bg8 Bh8 Bf7 Bb5 e8R Ne7 Bg8 Rf7 h7 Ng6 Re7 Rg7 Rc7 Qf8 Rc3 Be8 Bf7 Rd8 a8R Rd4 Bg8 Rc7 Ra6 Ra4 Bf7 Bd4 h8R Bg7 Rh7 Bh8 Bg8 Qd4 Re7 Qdg7 Ra7 Ke2 Bf7 Kf1 Ra8 f3 Ra6 Qh1 Rf4 Kg1 Kf5 Rc5+ Re5 Qgh7 Nb5 R2a3 Ng3 Rac4 Ba2+ Kh2 Rf1 Kh3 Bb1 Qhg7 Ra7 Rd4 Ra8 Rcc4 Re3 Rb4 Ne4 Rd6 Nd8 Rd7 Ra4 Ra7 Nb7 Qh2 Ra6 Qg3 Ra4 Kh2 Ra5 Qe7 Bd5 Qef8+ Ke6 Qh4 Ra4 Rd4 Rac4 R3a6 Ra4 Rc4 Raa2 Rca4 Na3 Qh3+
1Nn4R/1qk1N1N1/1bnp2nB/6N1/1r2p1N1/2bNP1B1/b1qR3p/B1q1K3 w - - 0 1 legal: proof: d4 a5 f4 b5 a4 e5 axb5 c5 Be3 cxd4 Bd2 e4 Bc1 Ra6 Nd2 Re6 Nb1 Re5 fxe5 Qf6 Qd2 Qe7 Qd1 Qd8 h4 g5 h5 Bh6 Qd3 Bg7 Qh3 Bf8 Qh4 gxh4 g4 Bh6 g5 Qe7 g6 Nf6 Bh3 Ng8 Bf5 Bf8 g7 Qd8 Bg6 hxg6 c4 f5 b4 d3 h6 a4 e6 h3 c5 g5 e7 g4 e3 a3 b6 a2 c6 f4 b5 g3 h7 g2 c7 f3 b7 Nc6 Ne2 g1N Nf4 Ne2 b8B h2 b6 Ba6 c8N Qc7 b7 Bc4 Nd2 Be6 Rb1 a1B Ba3 Ba2 Rd1 Bf6 Rg1 Bc3 Rg4 Qb6 Rh4 Qa6 Be5 d6 b8N Qb7 Bb2 Ba5 Ba1 f2+ Kf1 Bb6 Nf3 d2 Nd3 Nf4 Ng5 Ng6 Bg3 Nf6 g8N Nd5 Rh3 Bg7 Nh6 Bc3 Ng4 Rg8 h8B Rf8 Re1 d1Q Bg7 Qc2 Re2 Rh8 Rd2 Rh7 Na6 Kd7 e8N Nde7 Nb8+ Kd8 Bf8 Rf7 Ng7 Kc7 Rh7 Rf5 Rh8 Rb5 Ke2 Rb4 Kf1 Na7 Ke2 Nec6 Ne7 Nc8 Ngf5 Qb3 Bh6 Qc4 Ng7 Qc5 Kd1 f1Q+ Be1 Qg2 Bg3 Qc4 Ke1 Qh1+ Ke2 Qc1 Kf2 Qb3 Ke2 Qbb2 Kf2 Qcc2 Ke1 Qbc1+
kB2q1qR/1prqN3/n4p2/bB2r2n/5B1K/Bn1n4/RN1nRPB1/1B5b w - - 0 1 legal: proof: d4 a5 c4 e5 h4 d5 b4 axb4 cxd5 g5 d6 gxh4 d5 Ra3 Qd3 Ra8 Qd4 exd4 e4 Kd7 a4 c5 g4 h5 e5 h3 a5 h2 a6 c4 g5 h4 g6 d3 a7 h3 g7 b3 Ra2 c3 Re2 b2 Na3 b1N Bb2 c2 Bg2 c1N Nf3 d2+ Kf1 d1N Nd4 Nf6 g8B Rh7 Nc6 Na6 Ne7 Qe8 Nc4 Nb3 Ba3 Nh5 Nb2 f6 e6+ Kd8 d7 Kc7 d6+ Kb6 Rg1 h1Q Bf7 h2 Bg6 Rb8 a8R Bh6 Bf5 Bd2 Bg6 Ba5 d8B+ Nc7 d7 N1d2+ Ke1 Rf7 Bb1 Rg7 Rf1 Qg1 Ra7 h1Q Ra8 Qh3 Ra7 Qgh2 Rh1 Q2g3 Ra8 Nc4+ Kf1 Ncd2+ Kg1 Qhg4 Rh4 Qd3 Kh2 Rh7 Ra7 Qgg8 Ra8 Qd5 Kh3 Rg7 Ra4 Rg5 Kh4 Re5 Bd6 Qb5 Ra2 Qc6 Ba3 Qd6 Ng6 Qd3 Bde7 Na6 Bed6 Qd5 e7 Qc6 Nd3 Nb2 d8B+ Qc7 Bdb4 Bd7 Bd6 Rc8 Rb8 Re6 Bf4 Re5 Ra8 Bc6 Rb8 Qd7 e8B Ka7 Ne7 Qcd6 Bc7 Q6e6 Bcd6 Rc7 Rc8 Qd8 Bd7 Qde8 Rb8 Bf3 Bb5 Q6d7 Rc8 Rcc5 Bb8+ Ka8 Rd8 Rc7 Rc8 Na4 Nb2 N4c5 Bf1 Bh1 Bg2 Nd3 Rd8 Qh7 Rc8 Qeg6 Rg8 Qge8 Rh8 Qhg8
2N2rq1/1RK1N1n1/p3R1BR/Pq2qpnq/1BrR4/nr2Bb2/R3Rb1k/8 w - - 0 1 illegal: No possible last move
2rrB2b/2nbp1q1/Np1N2p1/1r1q4/q3R2N/2B1B1Pr/2K1n2k/N1NR3N w - - 0 1 legal: proof: e4 d5 b4 f5 c4 fxe4 cxd5 h5 b5 h4 b6 h3 g3 axb6 Qe2 b5 Qf3 b4 Qg2 hxg2 Kd1 Kd7 h4 Kd6 a4 Ke5 d4+ Kf5 f4 Kg4 d6 c5 d5 c4 f5 e3 f6 c3 d7 b3 h5 b6 h6 b2 a5 e2+ Kc2 e1R d6 Rh7 a6 Re2+ Nd2 b1R f7 Rb5 a7 Na6 Nh3 g1Q Ra4+ Re4 Nf2+ Kf5 Nb3 Ke5 Na1 Qh2 Be3 Nf6 Rd4 Rb8 a8N Nd5 Nc7 Nf4 Rd1 Qh5 Rh4 Qg6 Nh1 Ne2 Bg2 Ra4+ Re4+ Kf5 Bf1 Qe8 d8N Bd7 Nc6 Rd8 Ne5 Rc4 Nd3 Qe6 Bg2 Qd5 Nc1 Rh8 h7 Rcc5 Ne6 Rcc8 Nc5 Nc7 Na6 Qc5 Re5+ Kg4 Bc6 Kh3 Re6 Kh2 Re4 Rg8 h8N Qd5 Ng6 Rh8 Nh4 g6 Re5 Rh7 Re4 Bg7 f8B Bh8 Bg7 Qeg8 Bf6 Qg7 Bfd4 Be6 Be8 Bg4 d7 Rh6 Nf5 Rh3 Nh4 Be6 Kd3 c2 Kd2 Qc4 Bc3 Qa4 Kd3 Ra8 Kd2 Rdc8 d8N Bd7 Nb7 Rd8 Nd6 Rac8 Ncb3 c1Q+ Kd3 Qca3 Nc1 Q4b3 Kd2 Qd5+ Kc2 Qa4+
2q2N2/B2b1k2/3Rb3/2nnpKB1/R1pr4/q3PBbN/1prpB2B/1Rb1B3 w - - 0 1 illegal: No possible last move
2K1qrB1/4k1q1/2Qr1R2/NQn1rb2/N1RQ4/2PrR3/R1Q1b3/1n4b1 w - - 0 1 illegal: No possible last move
6Q1/1RQ3R1/2Q1brQ1/1P2q1rr/nNq5/bR1nk2p/3R4/r2nB1NK w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 a4 exf5 a3 b6 a2 Ba6 Bxa6 b5 Bc8 b7 Nc6 b8Q Nxb8 Kf1 Kd7 f4 Kd6 g4 Kc5 Kg2 Kd4 g5 h5 d6 e5 g6 c5 d7 c4 f6 c3 g7 e4 f5 e3 f7 c2 f6 e2 Na3 e1Q Rb1 a1R Qg4+ Kd3 Qg6+ Kd4 d3 Ne7 g8R Qe5 Bd2 c1N Rb3 Na6 Rg7 Nf5 Be1 Ke3 d4+ Nd3 d5 Qdc7 d8R Rh6 d6 Nc5 d7 Na4 Rh2 h3+ Kh1 h4 Rd2 Be7 f8Q h2 f7 Qc4 Qg8 Rb8 Qc6 Rf6 f8Q Ra8 Qe8 Bd6 Nb1 Ba3 Qg6 Rb8 Re8 Rb6 d8Q Be6 Nc3 Ra6 Kg2 h1R Na2 Ra8 Qdd7 Rd8 Qdc8 Rd5 Q8c7 Rh3 Rc8 Rg3+ Kh1 h3 Re8 Rg5 Ree7 Rd4 Bh4 Nh6 Qa7 Ng4 Be1 Rh5 Qab8 Rdf4 Rc7 R4f5 Nb4 Rfg5 Qbd8 Qec5 Rb7 Nf2+ Kh2 Nd1 Qdc7 Q5d4 Kh1 Qe5
2N5/NQ2qN2/2R4R/PK3b2/3nqr2/1nRNb2q/1B3R1p/1nQb1b1k w - - 0 1 legal: proof: e4 g5 h4 gxh4 d4 a5 b4 axb4 c4 f5 exf5 d5 a3 b5 Bd3 c5 Bc2 Ra7 Bb3 Rb7 Ba2 b3 Nd2 bxa2 Nb1 Rc7 cxd5 c4 Qd3 c3 Qd1 Rc5 dxc5 Bb7 Bg5 Ba6 Bc1 Bc8 Ke2 Kd7 Kd3 h5 f4 e5 g4 h3 d6 Kc6 g5 Kd5 a4 h2 d7 h4 g6 c2 a5 b4 g7 h3 f6 e4+ Kd2 b3 f7 b2 f5 e3+ Kc3+ Ke4 Kb4 e2 f6 e1Q+ Kc4 Nc6 Na3 b1B Kb5 Nge7 g8N Nd5 Ne2 Kf3 Bb2 Kg2 Ne7 Bh6 f8Q c1Q f7 Qcc3 Nc1 Bc2 Nd3 Be3 Rc1 Rh4 Qg7+ Rg4 f8R a1N Qh7 Rf4 Rf6 Qc7 d8N Bf5 Nc8 Nb3 Nf7 Qe7 Rf1 h1B Rh6 h2 Rf2+ Kg1 Qd2 Bg2 Qg7 Nb8 c6 Kh1 c7 Bd1 Qh7 Qh8 Rc3 Bf1 Qc1 Qe4 Nb6 Nc6 c8R Qe2 Rc7 Qe7 Nc8 Qf3 Qg7 Qfe4 Qh7 Nd8 R7c6 Ne6 Ka6 Ned4 Nb5 Nf3 Nba7 Nfd4 Qg6 Qh7 Qe6 Qh8 Qd7 Qh7 Qb7 Qh8 R3c5 Nc3 Kb6 Nb1 Rc3 Qg7 Ka6 Qgg2 Kb6 Qh3 Ka6 Ne2 Kb5 Ned4+
4r2q/1PQ1K3/4bNbQ/3pR3/2BN1r1N/1R1r4/1r1QnbNb/1Q4rk w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 b5 d4 f5 exf5 c5 a6 cxd4 a4 b4 Bd2 Nc6 a5 Ne5 Bf4 Nc4 Bg3 Nb6 Bc7 Qxc7 axb6 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 g4 h5 f4 d5 c4 h3 b7 h2 f6 b3 a7 b2 f7 d3 g5 h4 f5 d2 g6 h3 g7 Be6 f6 Bg4 Nf3 Be6 Na3 b1B Nb5 Rh4 Nbd4 Nh6 g8N Rf4 Nh4 Nf5 Ng2 Ng3 Ra3 Ne2 Rb3 Qb8 Qc1 d1R Qd2 Qe5 Rg1 Re8 a8Q h1R Qaa2 h2 Qa1 Bg7 f8Q Bh6 f7 Qh8 Kc6 Bg7 c5 Be5 Qh6 Bc2 Qda5 Rd3 f8N Bc7 Qd2 Be5 Nf5 Kf3 Nf6 Kf2 Qb1 Bc7 Ngh4 Be5 Rg8 Rg1 Ne3 h1R Rg5 Rh2 Neg2 Bc7 Re5 Kg3 Ne3 Rhf2 Neg2 Kh2 Ne3 Kh1 Neg2 Bf7 Kd7 e6 Re3 e5 c6 e4 Ne6 Be5 c7 Bd6 Rg3 e3 c8Q Bb8 Qc7 Bg6 Rb6 Ba4+ Kd6 Bd7 Nd4 Be6 Rc6 Nc3 Rb6 e2 Re3 e1B Rb3 Re2 Re5 Bf2 Qe3 Rb2 Qd2 Rdf3 Bb5 Ne2 Bc4 Rd3 Rg5 Rf8 Ke7 Rf5 Qd7 Bh2 Qc7 Rf4 Re5 Re8+
1qbk3b/1br2R2/5qB1/1QR1Nb2/2r1p1R1/1RQP1r1b/4Q3/1Q1NK1q1 w - - 0 1 legal: proof: c4 a5 h4 g5 a4 gxh4 b4 d5 Ba3 b5 axb5 dxc4 b6 Ra7 b5 Ra8 Bb4 axb4 d3 e5 e3 Nc6 f3 Nd4 exd4 Nf6 f4 e4 Be2 Nd7 Bf1 Ne5 fxe5 Ra6 Qb3 Ra3 Qd1 Ra8 g4 h5 d5 f5 e6 c5 b7 h3 b8R h2 g5 b3 e7 c3 b6 f4 d6 h4 g6 h3 b7 f3 g7 c2 g8R c1R Ra7 f2+ Kd2 c4 Ra4 b2 Na3 b1Q Be2 f1B Ra7 c3+ Ke1 c2 Kf2 Rh7 Rg4 Bg7 Nc4 Bh8 Nf3 Qb5 Rhg1 h1B Ke1 h2 Ne3 Bhg2 Ne5 h1B Ra5 Qc6 Rc5 Bh3 Bf3 Be2 Rf1 B1g2 Rf2 Bef1 Be2 Ra4 Rf7 Rc4 Bf3 Ra1 Qb1 c1Q+ Nd1 Ra7 Qb2 Rg7 Qe2 Rg8 Rh4 Qcb6 Bh5 Rg3 Bg6 Bhf5 Rg4 Bh3 Nc6 Kd7 Ne5+ Ke6 d7 Rf3 e8Q+ Kd6 Ra8 Qf6 b8Q+ Rc7 Ra3 Bb7 Rb3 Qe3 Qec8 Qg1 Qe8 Qa7 Qbc8 Qb8 d8Q+ Rd7 Qa5 Rc7 Qc3 Bfg2+ Kd2 Bf1 Qb5 Bfg2 Qce8 Bf1 Ke1 Bfc8 Rh4 Bhf5 Qg8 Ke6 Rg4 Kd6 Qh7 Ke6 Qh1 Kd6 Rf8 Ke7 Rf7+ Kd8 Qh6 Rd7 Qhc1 Rc7 Qb1 Bh3+
1rnBQ3/5R2/1n2pQnP/1N2N1q1/1qNRq1Nq/n1R2q1k/8/R3b1K1 w - - 0 1 legal: proof: d4 b5 e4 c5 b4 cxd4 a4 f5 axb5 fxe4 b6 a6 b7 Ra7 b5 Nh6 b6 Ra8 Bb5 Ng8 g4 axb5 Bf4 h5 Bc1 h4 Bf4 Ra4 Qd2 Rc4 Qd1 Rc5 Bc1 Rch5 h3 g5 gxh5 d6 Ke2 g4 Kd2 g3 Ke1 Bg4 hxg4 Qc8 Nh3 Qc7 Ng1 Qd8 Kf1 Kf7 c4 Ke6 f4 b4 h6 b3 c5 h3 g5 Kf5 c6 b2 c7 d3 c8R e3 g6 g2+ Ke1 d2+ Ke2 Kg4 f5 d5 g7 d4 f6 h2 f7 e6 Ra2 Qh4 Na3 b1N Ra1 Bb4 f8R Nc6 b8Q Nge7 g8N Na7 b7 Ng6 Nf3 g1Q Rf7 Kh3 Nb5 Na3 Ne5 d3+ Kf3 e2 Rc2 Qc4 Nf6 Qh4 Rcc7 Re8 Qf1+ Qg2+ Ke3 d1Q Qc8 d2 b8N Rg8 Nbd7 Qc2 Rg1 h1Q Nb6 Qa4 Qd7 Rb8 Qe8 Nc8 Rc4 e1N Rd4 Nd3 Nbc4 d1Q Qf2 Qdh5 Nfg4 Qga8 Bd2 Nb2 Rgc1 Q5g5+ Ke2 Qb3 Qf6 Na4 Bc3 Qhc6 Kf1 Qf3+ Kg1 Qae4 Be1 Ba5 Bb4 Qb2 Be7 Be1 Rc3 Qb4 Bd8 Nab6
1r1N3N/2Q3rq/2nN4/Q3p1nB/N2B1q2/kqqQ1n2/PRn5/2nKQ3 w - - 0 1 legal: proof: f4 a5 e4 f5 c4 fxe4 b4 d5 h3 axb4 cxd5 g5 Na3 b3 Rb1 b2 Ra1 bxa1Q Nb1 Bg7 g3 Bg4 f5 Be5 Be2 Bf4 gxf4 Bf3 Bf1 g4 Rh2 g3 Rh1 Bg4 hxg4 Kf7 Rh4 Kf8 Rh1 Ke8 d4 Kd7 g5 Kd6 g6 h5 f6 e5 g7 c5 f5 b5 f7 b4 f8N e3 f6 h4 f7 b3 Ng6 e2 Nc3 b2 Na4 b1Q Be3 c4 Rh2 c3 Nh3 c2 Ng5 c1N Qd3 Nf6 g8Q g2 Qg7 Rg8 Nh8 g1N f8Q+ Qe7 Rg2 Nh7 Qf2 h3 Qgf7 h2 Ne4+ Kc7 d6+ Kc6 d7 h1Q d8Q Qh6 Qa5 Rg7 Nd6 Qb3 Kd2 e1N Be2 Ng5 Bh5 Nc2 Kd1 Qac3 Qe1 N1f3 Rd2 Qhf6 Rf2 Qf4 d5+ Kd7 Bd4 Nc6 Nc4 Rb8 d6 Rg6 Qh7 Rg7 Re2 Ke6 d7 Qef7 d8N+ Kd7 Na3 Kd6 Nb5+ Kd5 Qc7 Q7f5 Nd6 Qg6 Qa6 Qh6 Qf5 Qh7 Qaa5+ Qb5 Qb7 Na1 Nc8 Kc4 Rb2 Nc2 Qbc7 Qb6 Qaa7 Qbb3 Nd6+ Kb4 Qaa5+ Ka3 Qh3 Nh2 Qd3 Nhf3
rQBrBbNB/RB6/1N2pr2/1q5b/6Qb/n2Nk3/4P1rp/K4b1N w - - 0 1 legal: proof: g4 b5 c4 g5 f4 gxf4 a4 a5 axb5 d5 cxd5 a4 h4 a3 g5 Nd7 h5 Ne5 Ra2 Ng6 hxg6 Bg7 Rh4 Bxb2 Rh1 Bg7 Rc2 Bf8 Rc6 Ra5 Ra6 Ra4 Ra8 Rxa8 d4 Kd7 Kd2 Kd6 Kc2 h5 g7 c5 b6 f5 b7 a2 Kb2 a1R b8Q+ Qc7 g6 h4 Bg2 f3 Qa4 f2 Nh3 f1R Nf2 f4 Nd2 Nh6 g8B f3 g7 c4 Bf7 h3 g8B h2 Be8 Bg4 Be6 Ra5 Bc8 e6 Rg1 Rg8 Nh1 f2 Be4 Bh5 Rg7 Ra3 Kb1 Rg3 Ka1 c3 Rh7 Nf7 Nc4+ Ke7 d6+ Kf6 d7 c2 d8N R3g4 d5 Ra8 d6 Qd7 Nb6 Ke5 Beb7 Qb5 d7+ Nd6 Nf7+ Kf5 d8N Rg2 Nc6 Nc4 Nce5 Na3 Nd3 Rh8 Ka2 Rhg8 Be3 c1B Bd4 Bg5 Bh8 Bh4 Nh6+ Kg5 Bd4 Rh8 Ng8 Kf5 Bd5 Kg5 Ra7 Kg4 Bdb7 Kg5 Ne5 Kf4 Bb2+ Ke3 Qg4 Rb1 Ba1 f1B Nd3 Rb4 Bc3 Rf4 Ka1 Rf6 Bb2 Rh7 Be5 Rd7 Bc3 Rd8 Be5 Rff2 Bh8 Rf6
2k1b2n/1Nb3Rq/3p1nQ1/1qQ2K2/q1p3R1/R2b2b1/n3N1P1/1N3BRN w - - 0 1 legal: proof: b4 b5 c4 a5 f4 g5 a4 e5 axb5 exf4 h4 gxh4 b6 Na6 b5 Be7 b7 Nb8 b6 Bf8 e4 h5 d3 c5 Bd2 a4 Be3 fxe3 Qg4 Ra5 Qd1 Rb5 cxb5 c4 d4 Rh6 Rh3 Rc6 Rh1 Rc5 dxc5 Qg5 Qc1 Qf6 Qd1 Qd8 Ke2 f5 Kf3 a3 Kf4 a2 c6 e2 e5 e1B c7 h3 e6 h2 e7 h4 Qc2 h3 Nd2 Bg3+ Kg5 f4 Ne2 f3 Qd1 f2 Qc2 Nc6 b8Q Nh6 b7 Nf7+ Kf5 Nh8 b6 Nb4 Rg1 h1N Qa7 h2 b8R Bb7 c8R Bc6 b7 d6 Qa3 Kd7 e8N Qb6 Ng7 Be7 Nh5 Bd8 Nb1 Bc7 Rg8 Ba4 Rbe8 Qa6 Rg4 Qb5+ Re5 Kd8 b8N Kc8 Nbc3 Kd8 Nd7 Kc8 Re1 a1Q Nc5 Na2 Nb7 Qd1 Qc5 Qa1 Re7 Qd1 Nd4 Qa1 Reg7 Qd1 Bd3 f1B Nb1 Nf2 Re3 h1Q Ne2 Ne4 Rf3 Qb4 Re3 Be8 Rf3 Qb5 Re3 Be1 Nhg3 Qh6 Nh1 Bg3 Qb2 Qda4 Qf6 Qh4 Qg6 Qh7 Nf4 Be2 Rf3 Bd1 Bf1 Bc2 Ra3 Bd3 Ne2 Nf6+
5krB/3pb2p/B2N2R1/1r1N2q1/q1P2n1K/N2Q2Q1/1b1pB2N/2b2nB1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 b4 Qa5 g4 Kd8 f5 Nh6 Ra3 Ke8 Rf3 Bb7 Rf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ng8 Be3 Qc7 Bc1 Qd8 Kf2 e5 f7+ Ke7 f6+ Ke6 g6 a5 b6 f3 Kg3 d3 b7 f2 g5 a4 b5 a3 b6 e4 g7 e3 g6 e2 Be3 e1B Rh6 a2 Na3 a1B Kh4 Ra5 Be2 Rg5 Nf3 Rc5 Nh2 Na6 b8N Bd4 b7 Rd5 Nc6 Nb4 b8Q f1Q+ Qg3 Bd6 f8Q Qe8 f7 Rc5 Na7 Bd2 N7b5 Nd5 Bg1 Ngf6 g8N Ne3 g7 Bb2 Ne7 Bdc1 Nd5 Be7 Nd6 Rg8 Rg6 Rb5 c4 Qa8 Qd8 Qa4 f8B Qf5 Qc2 d2 Qd3 Nf1 Qa5 Rb8 Qc5 Rb5 Qce3+ Qe5 Qeg5 Bd8 Be7 Bb6 Bd8 Bc5 Bb6 Bb4 Bbd4 Bc5 Nc8 Kf7 Bc3 Rd8 g8B+ Kf8 Nd6 Nh5 Be6 Ra8 Bh3 Nf4 Bg2 Qe8 Bh8 Qe5 Ne7 Rab8 Bb7 Rc8 Nd5 Rb8 Nf7 Be7 Ba6 R8b6 Rh6 Rg6 Nd6 Rg8 Rg6 Qxg5+
1Q1N1RR1/3nQ2R/1n2Nqp1/2QKb1R1/1p2p3/3nP1bB/2q4b/1Qb3k1 w - - 0 1 legal: proof: b4 b5 g4 f5 f4 e5 a4 a5 c3 d5 Bg2 h6 Ba3 e4 Bb2 Ra6 Bh3 Re6 Bf1 Re5 fxe5 f4 c4 Bf5 gxf5 dxc4 Bd4 Rh7 Bc5 Rh8 Be7 Rh7 Bg5 hxg5 Bh3 Rh6 Bf1 Rb6 Qb3 axb4 Qd1 b3 Ra2 b4 Ra1 Rb5 axb5 Qd3 Nh3 Qd7 Ng1 Qd8 Kf2 Kd7 d4 c5 h4 c3 e6+ Kd6 e7 Kd5 e8R b2 h5 f3 Ke3 c2 h6 c1B+ Nd2 b1N b6 g6 b7 g4 h7 c4 h8Q c3 f6 c2 f7 g3 Bh3 f2 Nf3 f1Q Ne5 g2 Qh5 Nc6 b8Q Bg7 f8R Qff6 Nf7+ Ne5 Ra2 Qdd6 Ra5+ Qc5 Nd8 Na3 Qg5 Bb2 Qb1 c1B Qf5 g1B+ Kf4 Bh8 e3 Nc4 Nf3 Nb6 Ng5 Kc4 d5 Qcc6 d6 Nd3+ Kg4 Kc3 d7 Kd2 Qc5 Ke1 Nge6 Kf2 Rb5 Bh2 Ra5 Ne7 Rg8 Bbe5 Ref8 Beg3 Rb5 Qf3+ Kg5 Bhe5 Ra5 Bef4+ Kf6 Qa4 Kf7 Nc6 Rb5 Nce5+ Ke7 Bg5+ Kd6 Qf6 Ra5 Qc2 Rb5 Nc8+ Kd5 B5h4 Nc6 Bf4 d8Q Bh4g3 Qde7 Nd7 Ncd8 Be5 Bf5 Bg1 Rh7 B1h2 Bh3 Kg1 Qcc7 Qb2 Kc4 Bef4 Rg5 Qc2+ Kd5 Be5 Qcc5 Ncb6+
1QB5/Rn1QQ3/1b2n1kn/1Kb3b1/3n2N1/2N1q1rP/BB2n1BQ/1q1r2q1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 b4 f5 Bh6 Bb7 Ra6 Be4 Bc1 h5 Rg6 f4 Rg5 Bf5 gxf5 Bd6 Rg2 Bf8 Rg4 hxg4 Kd2 Kf7 Kd3 g5 Kc4 d5+ Kd3 a5 c4 a4 e4 g3 h3 f2 b6 a3 c5 f3 f6 g2 c6 g4 b5 g3 e5 a2 c7 a1B c8B Nd7 b7 Qe8 b8Q Nc5+ Kc2 d3+ Kd2 d4 e6+ Kg6 b6 Nb7 f7 Bc5 f8Q Nh6 e7 Rg8 Ne2 g1Q Qff4 g2 Ng3 Ra6 Be2 f1N+ Ke1 Nh2+ Kd2 f2 Bf3 f1N+ Ke1 d2+ Ke2 Ne3 Kd3 Nc2 Kc4 d3 Ne4 Bf6 Bb2 Bg5 Nbc3 Nd4 Nf6 Ne6 Qbc7 Ra1 Ng4 Rb1 Bd5 Nf3 Qh2 Nfd4 Qd7 Rg7 Qe2 d1N Bc6 d2 Qe3 Nbd8 b7 Bb6 b8Q Nb7 Kb4 Ra1 Bd5 Rg8 Ba2 Rc1 Nb5 Nc3 Qe1 Nce2 Nc3 d1Q Qh4 Qf7 e8B Qd2 Qe1 Rd1 Kc4 Qde3 Qh4 Bf4 Qhe7 Bg5 Kb4 Qgf2 Rf1 Qg1 Rf5 Rg7 Ra5 Rg8 Ra7 Rg7 Qdd6 Rg8 Bb5 Qf5 Qdd7 Qb1 Bbc4 Qe1 Bd5 g1B Ka4 Bf2 Bg2 Qg1 Ba1 Bg3 Bb2 Bd6 Ra6 Rg7 Ra7 Bdc5 Ne5+ Kh7 Qf4 Rf7 Ng4 Kg6 Qfe5 Rf3 Qh2 Ndf5 Kb5 Rg3 Qc6 Qe5 Qcd6 Qee3 Qdd7 Nfd4+
5R2/rQK1PR1R/3b2bn/3NR2r/b2q1N1N/2bb2n1/5B2/1NQqrkq1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 d4 h5 g4 c5 d6 f3 d7 f4 e4 f2 d5 f1Q d6 h3 Bb2 Kh4 g5 Kg3 g6 Kg2 g7 h4 Qh5 f3 Ba3 b4 Kd5 c4 e5 f2 e6 h2 Qe8 c3 Nd2 b3 Ngf3 b2 Re1 b1B Bc5 Na6 Kc6 h3 b8R c2 b7 c1B e7 Bg6 Re4 Ba3 Nb1 Qd1 Ba7 f1Q Bf2 Ra7 Rf4 Bb4 Rf7 Nc5 Ra8 Ne4 b8R Ba6 Rb5 Ngf6 g8N Ng4 Nf6 Ng3 Rc8 Bh6 Re5 Bhd2 Ra8 Rh4 Rb8 Bad3 Ra8 Qa5 d8N Qd5+ Kb6 Bde4 d7 Bd6 Rb8 Bd3 Ne6 Qd4+ Kc6 Rh7 Nd5 Ba5 Nf8 Rh4 d8Q Rh8 Qb6 Qfe1 Rf1 h1R Qc5 h2 Rg1+ Kh3 Qc1 Bc3 Qd7 Rh6 Ne6 Rh4 Rf1 Kg2 Qb2 Rh8 Qdb7 Rh6 Qc1 Rh4 Rh7 Rh5 Rf8 Nh6 Bg1 Qee3 Nfd2 Qee1 R1f7 Qf1 Be3 Qf2 Kd7 Re1 Nf3 Kf1 Nef4 Qg2 Nh4 Qg1 Bf2 h1B Nb4 Bf3 Kd8 Bc6 Nbd5 Ba4 Kc8 Bdb4 Kc7 Bd6+
Q3qb1N/KR1Rr3/n1BR1b1r/Rn3B2/4QQrP/5n2/n2bq2Q/1b3k2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 b3 h6 Qc2 Bb4 Kd1 Bb7 Bb2 Qh4 Nc3 Qh5 Ne4 Qh4 Bd4 Qg5 Kc1 Qd8 Qd1 Bf8 Ng5 Bc8 Bf2 gxf2 g4 Bb7 Ne4 Bc8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Nh3 Kd7 Ng1 Ke8 Kb2 Ke7 Kc3 Kd6 Kc4 Ke5 h4 Ke4 d4 Ke3 g6 f5 b6 c5 Kb5 a5 b4 a4 g7 g3 b7 f3 d6 a3 d7 a2 d5 f4 d6 g2 Qb1 c4 Rh3 Nh6 g8Q Na6 b8Q Qe8 Kb6 c3 d8R c2 b5 c1N d7 Ra7 Qe4+ Kd2 e3 Ke1 Bd3 f1Q Ne2 g1B Qg2 f2 Qba8 f3 Qh2 Nf5 Nf4 Qg2 Ng6 f1R Bc2 Rh5 Nh8 f2 Rf3 Nd6 Rf7 Rc7 Bb1 Rc4 Ka7 Rh6 b6 Ke2 b7 Re1 b8Q f1N Qb4 Nd2 Qef4 Bf2 Bf5 Nf3 Rh7 Rd4 e4 Kf1 e5 Be3 e6 Bd2 e7 Qe2 Qbb7 Ra4 Qbe4 Bb7 Rb8 Bc6 d8R Nb5+ Kb6 Bd5+ Rd6 Bc4 Rd8 Bd3 Rd7 Bb1 Rb7 Qb8 e8B Rc4 Bc6 Qe8 Rhd7 Rb4 Qg5 Rd4 Qe6 Rg4 Qgf6 Qd3 Qd5 Re7 Qe4 Qc4 Qg5 Qe2 Qgf4 Bc2 Rb1 a1B Rb3 Bb1 Ra3 Na2 Ra5 Nbc7 Ka7 Be5 Qc2 Bf6 Qce4 Nb5+
rQ1nR3/2KB1k2/3Q2NB/n1r4q/brP2nN1/Nb1r2B1/B2nq3/N3q3 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 b4 h5 Bg5 f5 Be3 f2+ Kd2 f4 Ra6 f3 Rg6 Bd6 Rg4 Bf4 gxf4 hxg4 Kd3 Qc7 Bc1 Qb6 Kd2 Qd8 Kd3 a5 Kc4 g5 Kc5 d5 h4 d3 c4 d2 e4 a4 b6 d4 h5 d3 h6 g3 b7 a3 h7 g4 b5 g2 b6 g3 f5 a2 f6 a1R e5 Kf7 Na3 Nh6 Nh3 Qe8 Kd6 g1Q Kc7 Nc6 b8B g2 b7 Na5 Rh2 Bd7 e6+ Kg6 e7 Kf7 Be2 f1Q Nf2 Ba4 Ng4 f2 Rh3 Rg8 Re3 Rg5 Re6 Rb1 h8N+ Kg8 Ng6 Kf7 Bf3 Rb4 Be4 Qe2 Bf5 f1N Re3 Qb5 e8B+ Kg8 Re6 Nf7 Bd7 Nd8 f7+ Kg7 f8N Kf7 Be4 Rh5 Re8 Rc5+ Bdc6 Qgf2 Ne6 g1N Nd4 Qfe1 Ndc2 Nh3 Na1 Nf4 Bf5 Re5 Bcd7 Qd5 Qc2 d1B Qd2 Bdb3 Qd1 d2 Bb1 Rg5 Ba2 Qf5 Bb2 Qd5 Bg7 Qh1 Bh6 Qh5 Qc2 d1R Qd3 Nd2 Qd6 Nac6 Ba7 Ra5 Bf2 Rc5 b8Q Na5+ Bc6 Nf3 Bh4 Rd3 Bg3 Rg5 Bb5 Nd2 Bd7 Rc5+
b3n3/2Q1B2k/3NqP1q/1b2r2R/Q1NBn2q/1r1nQ3/bb1QN3/N2Kn3 w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 d6 e5 d4 f6 b4 Kd7 e4 Ke8 d5 Qe7 Ra2 Qd7 Rd2 Qd8 Rd4 exd4 e5 f5 Bd3 Qf6 Bc2 Qd8 Be4 fxe4 f4 Kf7 g4 Kg7 b6 a5 b7 h5 f5 c5 g5 c4 b5 e3 e6 d3 d7 e2 b6 a4 e7 c3 e8N+ Kh7 d6 c2 Ba3 c1N Nc3 d2+ Kf2 e1N Ng7 h3 Bb2 h2 Nge2 a3 Ne4 a2 Qa4 d1B Nd2 a1Q Nb3 h4 Ne8 h3 Bd4 Na6 b8Q Nc5 b7 Qa2 Qc7 Ra5 b8N Nf6 Nc6 Ba6 Ne5 Bb5 Na1 Bg7 Nc4 Bb3 Kf1 Qe7 d8Q Nc1d3 d7 Nce4 Ned6 Qe6 Qe8 Qd2 d8B Ba2 Be7 Qb4 Qed7 Rb8 Qdd8 Ne8 g6+ Kh8 Qdd7 Bf6 g7+ Kh7 Qdd8 Qd2 Qdd7 Qh6 Qdd8 Be5 f6 Rb6 Bf2 Bb2 Bd4 Bc6 Qdd7 Re5 Qdd8 Rb3 Qdd7 Qh4 g8Q+ Kh6 Qdd8 Bb5 Qg5+ Kh7 Qe3 Qh6 Ng3 Qh4 Ke2 Qh6 Kd1 Qh4 Rf1 h1B Ne2 h2 Rf5 Bg2 Qdd7 h1Q Qdd8 Qh6 Rh5 Qh4 Qda8 Nec5 Q8a5 Ba8 Qad2 Ne4
BkB1K2q/b1r1P1qQ/b1B5/2R2Q2/3Bq1rN/Nb3nNb/3q1b2/2bN4 w - - 0 1 legal: proof: f4 c5 e4 h5 b4 e5 a4 b5 axb5 c4 g4 hxg4 d4 exd4 e5 Bb7 e6 Bc8 Ra3 Nc6 Rd3 Ne5 fxe5 cxd3 Kd2 f5 h4 a5 c4 g5 b6 d5 c5 g3 e7 Kd7 b5 a4 b7 Kc7 e8B g4 b8N f4 c6 f3 e6 a3 e7 f2 h5 a2 h6 a1Q h7 g2 Bd7 g3 Qe1 Ra4 Nf3 g1B Qe6 g2 Nh4 Ba6 Nf5 Nh6 Bb2 Ng4 Nc3 Ne5 Rh5 Bh6+ Rg5 Qf8 Ng3 Qg7 Qf5 Rc8 h8N Rc4 Be2 f1B Bf3 Bf2 Nd1 g1B Ng6 Bh3 Nh4 Ra4 Be8 Rb4 Nd7 Qb1 Nb6 Kb8 Ng2 Rc7 Nc4 Qa1 b6 Qa4 Kc1 d2+ Kb1 d3 b7 d4 Na3 Rc4 Ka2 Qb4 Be4 Nf3 Nh4 Qa4 Qh7 Rb4 Rc5 Bg5 Nc3 d1B Qf5 Bc2 Nd1 d2 Ba1 d3 Bd4 Rc4 Kb2 Rb4+ Kc3 Bb3 Bd7 Bg8 Bd5 Rb2 Qh7 Ra2 Be4 Qc2+ Kb4 Rb2+ Ka5 Rb4 Bd5 Ra4+ Kb6 Qc4 Be4 Qe6 Bd5 Qe4 Ba1 Qc4 Nh1 Rc8 Nc3 Qh8 Bb2 d1Q Ng3 d2 Be4 Qce2 Be8 Rd4 Rc4 Qa1 Kc5 d1Q c7+ Ka7 Kc6 Qde1 Nd1 Bfe3 Bd5 Rg4 Kd7 Qc2 Be4 Bb6 Rc5 Bf2 Bd5 Qg6 Be5 Qgg7 Bd4 Qa2 Be4 Bc1 Bd5 Be2 Be4 Qad2 b8Q+ Ka6 Bd5 Ba7 Qbb1 Bef1 Qbf5 Qe4 Bb7+ Kb6 Bd5 Ba6 Ba8 Rb8 c8B Rb7+ Kd8 Rc7 Bec6 Rd7+ Ke8 Kc7 Rd5 Kb8 Re5 Rc7 Rc5 Bb3+
qq4R1/kpQq1QrR/2br1b1R/4n1P1/1N2r1b1/1Q2N2Q/2KnB2R/6n1 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 gxf4 Bb2 h6 Bf6 h5 g4 h4 Bd4 Ra4 Bf2 Ra8 Bg3 hxg3 h4 Kd7 a4 c5 d4 Kc7 Kd2 Kb6 g5 e5 f6 b3 f7 e4 h5 c4 d6 g2 d7 f3 d5 b2 h6 f2 d6 Bg7 f8Q Rh7 Ne2 Ra6 Na3 b1Q Nc1 Qa2+ Nc2 Nc6 Nd3 Nf6 Nb4 e3+ Kc3 Qe8 d8R e2 d7 e1R Qh5 Re6 Be2 f1B Qff7 Qf8 Kd2 c3+ Kd3 Bh8 Ne3 c2 Rc1 Ne4 a5+ Kb5 Re8 Bf6 d8Q Rg7 h7 Qa1 Re1 c1Q h8R Qcc5 Qh7 Qce7 Qc7 Nd2 Kc2+ Kc5 Rh5 Re5 Qh6 Bg4 Rh7 Qd7 Rh4 Rb6 a6 Qg8 a7 Qa3 Bd1 Bb5 a8Q Re4 Reh1 g1N Qa4 Qa1 Qab3 Qa8 R1h2 Ra6 Qe5+ Kb6 Be2 Ka7 Qc7 Ne5 Rf8 Rd6 Qhh5 Be6 Qg4 Bc6 Qh3 Bg4 R4h6 Qdc8 Re8 Qf8 Rd8 Qe7 Rdh8 Qcb8 Rg8 Qd7
kb1r1bQQ/5Q2/2K1N2B/2p2br1/n5br/P1q3b1/R1nn2QB/1NN3N1 w - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 h6 f5 Qd6 a3 Qd7 Ra2 Qd8 Rc2 Kd7 Bh3 Ke8 Rc4 h5 Rf4 gxf4 g5 Qd7 Bg4 hxg4 Ne2 Qd6 Ng1 Qd8 Kf2 Kd7 h4 b5 d4 e5 f7 c5 f6 Kc7 d6+ Kb7 d7 f3 Ke3 b3 Ke4 b4 Kd5 f2 h5 f1R g6 b2 g7 g3 h6 b3 h7 e4 Be3 g2 Bc1 e3 Nd2 b1B Qf3 b2 Rh2 Qa5 d8B e2 Bc7 Nh6 g8Q Bbf5 Nb1 Ng4 Bh6 Nd7 Bd6 Ka7 Kc6 e1B d5 Qc3 Bg3 Rb8 d6 Nb6 d7 Ka8 d8N Na4 Ne6 Ne3 Nd4 Nc2 Nde2 Bg4 Bd6 Bcf5 Nc1 Bg3 Qd5 Rd8 Bc7 Be7 f8Q Rf3 Qfg7 Bf8 f7 Re3 Qd7 Re6+ Bd6 Rg6 Qe8 Rg5 Bb8 Be7 f8N Bed6 Ne6 Bf8 Nh3 g1B Qef7 Bd4 Ng1 Bf6 Bf4 Be5 Rf2 Bb8 Bc7 Bh4 Bh2 Bhg3 Qgf6 Bd3 Qf3 Bdf5 Qg2 Qc4 Nc3 b1N Re2 Nd2 Nb1 Qc3 Rf2 Ne3 Re2 Ndc4 Rc2 Nd2 Ra2 Nc2 Qgg6 Rg8 h8Q Rh5 Qgh7 Rgg5 Qh7g8 Rh4
1N2Qq2/rR3rN1/7N/1qnR1N2/1n1QPK2/1bbq3p/B4Rbk/Rb4b1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ba3 exf4 axb5 Bb7 b6 Ba6 b5 Bc8 Bb4 axb4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 c5 g5 f5 d6 h5 d3 b3 g6 c4 d7 b2 g7 h3 b7 c3 b6 c2 Ra7 c1B Na3 b1B Qe1 h2 Ra5+ Bc5 Be2 h4 Qd1 h3 Nb5 Bb2 Nd4 Na6 b8N Qf8 d8Q Bc3 b7 Nb4 Qe8+ Be6 Ra2 Nf6 g8N Ra7 Nh6 Rh7 Bf1 Bb6 Nge2 Rf7 Ng3 Nd7 Nh5 Nc5 Rg1 h1B+ Rgg2 Ba5 Ng7 Bd8 Ra1 Bb6 Ke2 f3+ Ke3 f2 Qda4 Kd6 Kf4 Bb3 Be2 f1Q+ Rf2 Bg2 Bd1 Bc4 Bb3 Be6 Ba2 Bb3 Kg5 f4 Ndf5+ Kc7 d4 f3 d5 Qb5 Kf4 Qd3 Rc2 f2 Rb2 f1Q+ Rf2 Nc6 Qd4 Nb4 Nd7 Qb5 b8R Qfd3 d6+ Kc6 Rb7 Nca6 Qf6 Bbd4 Rf3 Bg1 Nb8+ Kc5 d7 Kc4 d8R Nc5 Qfe7 Qd5 Rf1 Kd3 Rf3+ Ke2 Q7d7 Qdd3 Qd4 Ke1 Rd5 Ke2 Rg3 Kf1 Rf3+ Bf2 Re3 Kg1 Re2 Kh2 Rb2 Bg1 Rd2 Ra8 Rf2 Ra7
q1qB2nk/1NN4q/Q2Q4/1prr4/1q1RQ3/3q1PK1/bn1R2R1/1rQ2Rb1 w - - 0 1 legal: proof: c4 f5 b4 a5 Na3 axb4 Nb1 d5 cxd5 f4 Na3 f3 exf3 Qd6 Nb1 Qd8 Ne2 g5 Ng1 g4 Ne2 h5 Ng1 g3 Ke2 gxf2 g4 Qd7 g5 Qd6 Bh3 Qd8 Bg4 hxg4 a4 Kf7 d4 Kg7 h4 f1R g6 c5 a5 e5 h5 b5 h6+ Kf6 h7 Kg7 d6 b3 d5 c4 a6 e4 d7 c3 d6 e3 a7 g3 Ra2 c2 Na3 b2 Nc4 b1Q Na5 g2 Nb7 Qh4 d8Q Nd7 Nh3 g1Q Nf4 Nb6 d7 Bc5 Nd5 Na4 Nc7 Nb2 Qd5 Rd1 Qe4 Rd5 Qg5 Bb6 d8Q Be6 Qd6 Rc8 a8Q Bd4 Bd2 c1Q Ba5 Qgg4 Bb6 Qc6 Rf1 Qhh5 Qa6 Qd3+ Ke1 e2 Qc1 Bg1 Ra4 Qh2 Rd4 Qgh3 Na8 Qe8 Bd8 Rcc5 Nc7 Qh1 Bh4 Qa8 Bd8 Bh2 Kf2 Bf7 Re1 Qhc8 Rf1 Bg1+ Kg3 e1Q+ Rf2 Qb4 Rf1 Qc2 Rd2 Rh5 Rd4 Ba2 Rd2 Rhd5 Rd4 Nf6 Rd2 Rg8 h8R Qd3 Rh4 Re8 Rg4 Qh7 Rf4 Kg8 g7 Ree5 Qg6 Re1 Rd4 Ng4 Qe4 Nh6 Qc2 Rb1 Qc4 Qhf5 Qc1 Kh7 g8R Qg6+ Qg4 Qh5 Rg7+ Kh8 Qe4 Qg6+ Kh4 Qgf5 Rgg2 Ng8 Kg3 Qh7
4n3/4Prn1/2q1rQ2/Bq1N2b1/2BBQb2/1q3rk1/pB1R4/Q2KNQrr w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 b4 f5 Bh6 Bb7 Ra6 Be4 Bc1 h5 Rg6 f4 Rg5 Bf5 gxf5 Bd6 Rg2 Bf8 Rg4 hxg4 h4 Kf7 c4 Kf6 e4 Ke5 h5 a5 h6 g5 c5 d5 h7 g3 f6 g2 b6 g4 b5 a4 b7 a3 c6 f2+ Ke2 f3+ Kd2 Kf4 f7 a2 b6 d3 c7 g3 c8Q d4 e5 Ra6 e6 Nd7 b8B+ Qc7 b7 Bh6 f8Q+ Ndf6 e7 Re6 Ba7 Bg5 b8Q Nh6 Qg7 Ne8 Qbb3 Qc6 Qc4 Nf5 Bb2 Rf8 h8B Rf7 Qg8 Nfg7 Be2 f1R Qh7 f2 Nf3 g1B Q8a6 g2 Bb6 Bh2 Ne1 g1R Nc3 Bg3 Kc1 d2+ Kc2 Bh2 Nd5+ Kg3 Qa1 d1R Qe4 Rb1 Ba5 d3+ Kb3 d2 Kc2 Rf3 Qc3 Rd1 Bc4 Rb1 Qcd4 Rf7 Qf6 d1Q+ Kc3 Qf3+ Kc2 Qa3 Bd4 Rb3 Kd1 Rf3 Qd3 Qb3+ Qc2 Kg4 Qb5 Be5 Rh2 Bef4 Qa6 Kg3 Bb2 Qb4 Qe4 Rh1 Bd4 Rfg1 Qb5 f1Q Rd2 Qc3 Qbb1 Qb4 Qbd3 Qbb5 Bb2 Qf2 Qf1 Qe3 Qh6 Nh5 Bhd4 Nhg7 Qf6 Qeb3+
n2QKb2/QR2nqN1/3Q1Q2/N5P1/R3rq1p/3qb3/1qBk4/1bn1N1Nr w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ba3 exf4 axb5 Bb7 b6 Ba6 b5 Bc8 Bb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 g4 h5 b7 f5 d6 f3 d5 b3 d7 b2 Ke6 f2 Kf7 h3 g5 h2 b6 f4 d6 f3 Ra5 Ne7 Na3+ Kc3 e4 b1Q e5 c4 e6 Na6 b8N Nc7 b7 Qb2 Qb3+ Kd2 Qb4+ c3 Bd3 f1Q Ra4 f2 Nc6 h4 Qb6 c2 b8Q c1B Na5 Ra7 Qc6 Na8 Bc2 Ba6 Qf3 Bd3 Qf6 Qc7 d8Q Qe2 d7 f1Q Nb7 Qff4 Ke8 Bf5 Na5 Qd3 Qb6 Rb7 Qc5 Rb4 Qb6 Re4 Qa7 Rh7 Qdb8 Rf7 d8Q Qc4 Qbd6 Qcd5 Ne2 Q5b3 Rf1 h1N Ng1 Ng3 Rf3 Ne2 Rg3 Qb7 Rf3 Qdd4 Rb3 Qd3 Rb6 Qbd5 Rb7 Bh7 Bb1 Qdf5 Nc2 Qg6 Ne1 Qg8 Qf5 Rf6 Bc2 Qf7+ Kd7 Bg6 Qe5 Rf5 Qf6 Rc5 Bb3 Qdd4 Qdb6 Nf5+ e7 Kc3 Qc7 Re6 Ngf3 Be3 Ng2 Kd3 Qcb8 Rc1 Qd8 Rh1 Ng1 Kd2 Ne1 Nc1 Bd1 Ng3 Bb3 Bb1 Bd1 Re4 Bc2 Qc4 e8N Qdd3 Ng7 Nf5 Qab8 Qca2 Qa7 Ne7 Ke8 Qf7+
1n2B3/r5Q1/q1nQ1NP1/qrB2rKQ/4B1Rr/n1b3pQ/kq1R1bB1/8 w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nd2 cxd4 Nb3 e5 Bh6 e4 Bf4 Ba6 Bc1 Bc8 h3 g5 Bf4 g3 Ra2 g2 Nc1 g4 Ra5 g3 Nd3 exd3 Bc1 Bb7 Ra3 Bf3 Ra1 Bg4 hxg4 Be7 Ra4 Bd6 Ra1 Bf8 Kd2 Ke7 c4 Ke6 e4 a5 f4 d5 b4 h5 f5+ Ke5 f6 a4 b6 h4 g5 a3 g6 a2 c5 h3 b5 h2 f7 Ra3 c6 Rh5 c7 Ne7 c8B Bg7 f8Q Rf5 b7 Ra7 b6 Nec6 Nh3 g1B Nf4 Bf2 Qh5 Qf6 Rb1 a1Q Rb2 Qa6 Bg2 Qg5 Rd1 h1R Rb4 Rh4 Ba3 Qd8 Qf7 Kd6 e5+ Kc5 e6 Bf6 Rb3+ Kc4 e7 Bh8 e8B Qc7 Kc1 d2+ Kc2 Qd8 Qg7 Qg5 Bc5 d3+ Kb1 d4 Nd5 Qd8 Nf6 Qd5 Rb2 Qd8 Rf1 d1N Kc1 Nc3 Rd2 Kb3 Re1 Qd5 Re4 Nb1 Rg4 Na3 Bcd7 Nc2 Be6 Ka2 B6f7 Qb3 Bfd5 Qa5 Bdf3 Qb2+ Kd1 Na3 Be4 Nd7 b8Q Qa6 Qa8 Ndb8 b7 Qa5 Rc2 d2 Ke2 d1R Rd2 Rf1 Kd3 Rd5 Ke2 d3+ Kf3 Rg5 Kf4 Qa6 Be7 Rb5 Bc5 Qa5 Re2 d2 Kg5 d1Q Rd2 Nd7 b8Q Qda4 Qd6 Ndb8 Qab7 Qa6 Qbd7 Q4a5 Rf4 Nc4 Qh3 Na3 Qgc7 Bg7 Rg4 Bh8 Nd5 Bc3 Nf6 Re1 Qce7 Re3 Qeh7 Rf3 Qg7 Rf5+
1K1Br2B/1RR2b1p/PrR2qQ1/B1Rnb3/3nqq1N/Qq6/4B3/1r1n3k w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 f5 exf5 axb4 c4 gxh4 Na3 bxa3 cxd5 Qd6 Be2 Qd7 Bf1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 c5 f4+ Kh6 d4 b5 g4 b4 a5 h3 d6 b3 a6 h2 d7 c4 f6 b2 d5 b1R d6 c3 f7 a2 Nf3 c2 g5+ Kh5 f5 Kg4 f6 Kg3 g6 Qb6 d8B Qb3 g7 Be6 Bb2 c1Q Be2 Kg2 d7 Ra7 Bc3 Rb7 Bda5 Rb6 d8B Qd2 Rf1 h1N Qc1 Nf2 Qa3 Nd1 Nh4+ Kh2 Rf3 Kh1 Rf5 Bd5 Bb2 e6 Bd4 Ne7 g8Q Nbc6+ Kd6 e5 Kc7 e4 Qg6 Bg7 f8R e3 Rf7 Re8 Rg5 Bc4 Rc5 Nd5+ Kc8 Bh8 Rb7 Qdb4 f7 Be5 Bb2 Nd4 f8R Qd2 Rf6 Qdb4 Bf1 e2 Rfc6 e1Q Be2 Qf1 Rcc7 Qf4 Kb8 Qe4 Rc6 Qd2 Bbc3 Qdf4 Rc5 Nf6 Rc6 Bf7 Rc5 Nd5 Rc6 Rb2 Rc1 Rb1 Bb2 a1Q R1c5 Qf6 Bc1 Qac3 Bg5 Qf1 Bf6 Qff4 Bh8 Qcf3 Qh6 Qf6 Qg6 Q3f4
3nb1k1/NQ4p1/nr1qN3/1bB2rQ1/1NR1nbR1/1Q6/KN2n2P/1q3Qq1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 e4 a5 b4 f5 d4 Kf7 Kd2 c5 Kc3 f4 Kb2 f3 e5 f2 d6 f1B b6 c4 e6+ Kg6 d7 Kh7 d5 c3+ Ka2 a4 b5 c2 b7 a3 d6 Ra4 e7 Na6 e8N Qg5 d8Q Re4 b8Q Be2 b6 Qc5 d7 Qd6 b7 Re5 Nh3 g1N Qg5 g2 d8N Bb5 Nc6 Rf5 Qf1 Nf6 Nb4 Ne2 Nf4 g1Q Nfd3 Bcd7 Nb2 Nf4 Nc7 Be8 Be3 Ne4 Ne6 Kg8 Bc5 Rh6 Nc3 Rg6 Qa8 Rgf6 b8Q c1N+ Kb1 Nce2 Ka2 Be7 Rc1 Bd8 Qab7 Bc7 Ncd1 Rg6 Rc4 Rgf6 Nc3 Rg6 Kb3 a2 Ka3 a1Q+ Kb3 Bc6 Nb5 Qb1 Na7 Bb5 Ka3 Nd3 Kb3 Ne5 Ka3 Nc6 Kb3 Qgd4 Rg1 Nd8 Rg4 Qg1 Ka3 Qe7 Kb3 Bf4 Ka3 Be3 Qg3 Bf4 Qb3 Qf8 Nd4 Rb6 Ne6 Qc1 Ka2 Qd6 Qd7 Qcd1 Qb7 Qb1+
1nRn1QbR/1Q2Pq2/5rB1/1r1nq1B1/4N1nr/pb1Rr3/1k2K2B/6RB w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra5 h5 Nd5 f4 Ra1 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 h4 Kf7 e4 Kf6 c4 g5 b4 a5 c5 d5 c6 a4 f5 Ke5 b6 d3 b7 Kd4 b5 g3 f6 g2 f7 a3 f8R g4 e5 g3 h5 Qd7 c7 Qf7 h6 Be6 c8B Ra5 b6 Ne7 h7 Nec6 Nh3 g1R Bd7 g2 Qe2 Nd8 Be8 Rb5 Kd1 Kc3 Bg5 d4 Rb1 d2 Rc1+ Kb2 Rc8 Ba2 Qe1 Bc4 Be2 f1R e6 f2 Bf3 Bd5 Ke2 d1N e7 Ne3 Rc3 Ng4 Rd3 Bb3 Qb4 Re1+ Kd2 f1B Nf2 Re3 Ne4 Be2 Rg8 Rf1 Rf8 g1Q Bg2 Qg7 Bg6 Qh2 Rg1 Qhe5 Bh1 Rf6 Rg8 Qf7 Rf8 Nd7 b8B Bd1 Bc7 Nb8 b7 Bc2 Rg8 Bb1 Rf8 Ba2 Rg8 Qee6 Bh2 Qe5 Rc3 d3 Re8 Rg8 h8R Rg7 Rc8 Rh7 Reg8 Rh4 Rg7 Rg3 Ke1 d2+ Ke2 d1N Rgg8 Ne6 Rgd8 Nde3 Rd7 Nd8 Rd3 Rd5 Qb6 Rb5 Qc7 Nd5 Qb6 Nd7 b8Q Rgh3 Q8b7 Nb8 Qf2 Re3+ Kd2 Qe8 Qf4 Bc4 Rc6 Re6 Nc5 Nb6 Qf8 Bab3 Rc7 Rf6 Ne4 Bg8 Rc4 Qf7 Rc8 Ref3 Ke1 Nd5 Ke2 Re3+
2Q1q2q/bNq1P2k/2NQ2q1/1R5p/b7/4N2B/QqRn2Nq/2Kn1qrQ w - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 a4 c5 axb5 cxd4 g5 e4 Bf4 e3 h5 Ra6 Be5 Rg6 Bf6 exf2+ Kd2 gxf6 hxg6 f5 Qe1 f4 Qc1 Bb7 Qd1 Bc8 b4 h5 c4 d5 e4 f5 e5 a4 g7 Kf7 b6 Kg6 b5 a3 e6 a2 c5 f3 c6 f4 b7 d3 b6 d4 c7 Na6 b8Q Nc5 b7 Ne7 g8N Nd5 Na3 Ne3 Qb1 Bd7 c8Q Ba4 Qb2 Qc7 Rh3 Kh7 Rh4 Nd1 Rb1 a1Q Qc3 Ne4+ Kc1 Bc5 e7 Nd2 Rh3 Ba7 Nh6 Rg8 Nf5 Rg6 Bg2 f1Q Qc6 f2 Rh2 f3 Ne3 Qe2 Nh3 f1Q Nf4 f2 Nb5 Qg1 Nd6 f1Q Bh3 Rg7 Rf2 Qh2 Nfg2 Qg4 Re2 Qe4 Qa8 Qg6 b8N Qff7 Rf2 Qe8 Nb7 Qa2 Rb4 Qag8 Rb5 Qh8 Re2 Nc4 Qa6 Qh6 Ne1 Nf2 g6+ Kg8 Nd6 d2+ Kb1 d3 Qh1 d1Q+ Ka2 d2 Nb7 Qc1 Qd6 d1Q Nc6 Qc3 Reb2 Qf3 Kb1 Nd1 Rg2 Qb4+ Kc1 Qf1 Rb2 Nd2 Ra2 Rf7 g7 Kh7 Rb2 Rf3 Rc2 Qhg6 g8Q+ Kh6 Rc3 Rg3 Rc2 Rg1 Qa2 Kh7 N1g2 Qbb2+
1RR1Q3/N1rrn2p/Q1RQnk1r/1R5n/2r5/1Q5q/1NqPq2n/1B2b1K1 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 b3 g3 Bb2 Ke7 Bd4 Bh3 Bf2 Be6 h3 Bg4 hxg4 Qd6 g5 Qa3 Qc1 gxf2+ Kd1 Qa6 g4 Ke8 Kc2 Qd6 Qd1 Qd5 Kc1 Qd8 e4 Ke7 b4 f5 g6 a5 g7 c5 g5 f3 e5 a4 g6 c3 e6 c4 b6 c2 b5 f4 b7 a3 b6 a2 Nc3 Qd3 Rh5 Nc6 b8R Qe2 b7 Nd4 Qe1 Kf6 e7 Ne6 e8Q Ra6 Qd8+ Ne7 g8Q Rb6 Bg2 f1Q g7 f2 Qc8 f3 Nd1 Rb4 Bh1 Qh3 Rb5 f1N Nb2 f2 Nf3 Ng3 Ne5 f1N Be4 Nh2 Nc6 Nh5 Na7 Ra4 Rb1 a1R Qg3 Ra6 Qd6 R1a4 Ra8 Rc6 b8R Rc7 Rc5 Ra6 Rc6 Rb6 Qa6 Rd7 Na4 Rc7 Rb5 Rd7 Kb2 c1R Bb1 c3+ Kb3 Rc7 Nb2 c2+ Kb4 Nf5 Rc8 Be7 Qe8 Rf8 g8Q Rf7 Qg3 Bd8 Kc3 Rfd7 Rab8 Ne7 Qg8 Rd1 Qe8 c1Q+ Bc2 Qb1 Bd3 Qa2 Bb1 Rf1 Kc2 Rf4 Kc1 Rc4+ Qc3+ Qe5 Kd1 Qa4+ Qb3 Qa2 Be4 Qb1+ Ke2 Qc2 Qa5 Ra6 Kf2 Rb6 Bf5 Qe2+ Kg1 Kg7 Qdg3+ Ng5 Rd5 Qc1+ Qe1 Ng8 Bb1 Qc2 Rcc5 Rh6 Rc6 Ne6 Qa6 Bh4 Qeg3+ Kf6 Rdb5 Ne7 Qd6 Be1
5B2/rr5b/1QB1Qq2/1RqRN3/Q2Q1nn1/b1R1R2P/3p1pnr/K3b2k w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h5 Nc3 Ba3 Ne4 Bf8 Nf2 f5 gxf5 Nh6 Ng4 hxg4 Ra3 Ng8 Ra5 Rh7 Ra1 Rh8 Kd2 Ke7 e4 Kf6 c4 Ke5 Kc2 g5 Kb1 a5 b4 d5 c5 f3 c6 d3 c7 g3 b6 a4 b7 a3 b5 a2+ Kb2 d4 f6 g2 f7 d2 b6 Kf4 e5 g4 e6 g3 e7 d3 e8Q Ba3+ Kb3 Nf6 f8R Nd7 b8Q Nc5+ Kc3 Ne6 b7 Ra7 Rg8 Ng4 Rg5 Qf6+ Re5 f2 Nf3 g1Q Bg2 Rh3 Rb1 a1B+ Bb2 Qe1 Rc1 Qe3 Re1 Qc5+ Kb3 Rh6 Ka2 Rh3 Bh1 g2 R1e3 g1R Rd5 Rh4 Bd4 Bc3 Qea4 Rg2 h3 Kg3 Kb1 Rh7 Ne5+ Kh2 Ka2 Bcb4 Rc3 Nf4 Ka1 Bf5 c8Q Rd7 Qcc6 Bh7 Qe6 Rg7 Qbd6 Rc7 b8R Rcb7 Qdb3 d1N Qc4 Kg1 Qb6 Rh2 Be4 Nb2 Bf3 Ng2 Be4 Kh1 Bf3 Qc8 Bc5 Ba5 Bf8 Qc5 Qd4 B5b4 Rb3 Be1 Rc8 d2 Rb5 Nd3 Be4 Qb4 Rc3 Nf4 Rd8 Ne2 Bc6 Qc5 Rd5 Nef4
r3R3/n1QK1QN1/b2RrpR1/Bb5n/4P3/2rRNbp1/1k1N4/3qbbN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 gxh5 a6 b4 Ne7 b6 Ng6 b5 Nc6 b7 Nb8 b6 Ne7 Bg2 Ng8 Bc6 Ba3 Ba4 Bf8 Bb5 axb5 Kd2 Ke7 Kd3 Kf6 Ke4 g5 Kd5 b4 e4 f3 c4 d3 h4 d6 c5 g4 h6 f2 h7 f1B c6 g3 c7 b3 h5 b2 h6 d2 Ra6 Bg4 c8N Bge2 Qb3 d1R+ Nd2 b1B Ne7 Bb5 Nf5 Bb1d3 Ng7 Nc6 b8N Na7 b7 Be7 Ba3 Rc1 Bb4 Rc3 Nc6 Bde2 b8Q Bec4+ Kd4 d5 Ba5 Bb4 Qc7 Qd6 Rb6 Ba6 Rh2 Bcb5 Ne5 Re8 Re2 Re6 Re3 Qd8 Rd3 Qd6 Ke3 d4+ Kf4 Qd7 Rd6 Qd8 Rf3 d3 Nec4 Qd7 Ne3 Qd8 Kg4+ Ke5 Qa2 Nf6+ Kg5 Rg8 h8R Nh5+ Rf6 Qd7 h7 Ra8 Rg6 f6+ Kg4 Qd8 Re8 Qd7 h8R Qd8 Rc6+ Kd4 Kf5 Qd6 Rd8 Qd7 Rhe8 Qd6 Nb1 d2 Rb6 d1B Nd2 Kd3 Qb3 Qd4 Rbd6 Bf3 Qd5 Rc4 Qdb7 Kc3 Qf7 Qd3 Qbc7 Kb2 R8d7 Qb1 Rd3 Rc3 R7d4 Rb6 Rd6 Qd1 Ke6 Ra3 Nb3 Be1 Nd2 Rc3 Ke7 Rbc6 Kd7 Bc4 R6d4 Re6 Rd6 Bcb5+
nRB1N1k1/4pR1R/2pB1b1r/2K1Bbrn/rr1P1rn1/5R2/5Q1B/5Qq1 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 f4 Nh6 g4 Ng8 Na3 h6 Nc4 gxf4 g5 h5 Ne5 Rh6 Ng4 hxg4 Ra5 Rh5 Ra1 Rh8 Ke2 Kf7 d4 a5 b4 a4 h4 c6 d6 g3 g6+ Kg7 b6 g2 d7 a3 b5 a2 b7 e3 Kd3 e2 Kc4 e1N h5 f3 h6+ Kf6 g7 Kf7 h7 f2 b6 Qc7 d8Q Qh2 Kc5 Qh4 Ba3 Ra4 Nf3 g1R Nh2 Qg4 Ba6 Qg3 Ng4 f1R Nf6 Rb4 Ne8 Nf6 g8R Bg7 Qd3 Rf2 Qf1 Nh5 Rd1 a1R Rd3 Bh3 Rf3+ Bf6 Rg7+ Kf8 Qc8 Ng2 Qf5 Ne3 Qc2 Bf5 Qb2 Rg8 h8B Ng4 Rh7 Rg5 Rf7+ Kg8 Rh3 Nf4 Rhh7 Rh1 Qc2 Qg1 Qb2 Rfh2 Qbf2 Rh6 Bg7 R1h4 Bh8 Be5 Bf6 Nh5 Bg7 Bc7 Be5 Ra2 Bh2 Be5 Bc4 Bf6 Ba6 Rb5+ Kc4 Nd7 b8B Rb1 Bb4 Ra4 b7 Rb2 Bbe5 Nb6+ Kc5 Ne3 b8R Rhg4 Bc8 Rf4 Ba3 Na8 Bb4 Ng4 Kc4 Raa2 Bbd6 Ra4+ Kc5 Rbb4
1k1B4/5B1n/n1B2b1r/Kb1Rn1Q1/1p1q1r1N/5PB1/p1QQ1Qn1/2rR2b1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 f5 exf5 axb4 c4 gxh4 Na3 bxa3 cxd5 Qd6 Be2 Qd7 Bf1 Qd8 d4 Kd7 Kd2 b5 Kc3 c5 g4 Kc7 g5 h5 a5 e5 f3 a2 f6 c4 a6 h3 a7 h2 f7 h4 g6 e4 g7 e3 Qc2 e2 Nh3 e1N Nf4 h3 Ng6 Nf6 g8Q Be7 f8Q Rh6 Nh4 Nh7 Qg5 Bf6 Kb4 c3 Bc4 Na6+ Ka5 Ng2 Rd1 h1R Bf4+ Kb7+ Bc7 b4 d6 h2 Bf7 Bd7 d5 Bb5 d7 Rf1 d6 h1N Qe8 Nf2 Qee2 Nd3 Qf2 Ne5 Rd5 Rc1 Qgd2 Qh8 d8Q Rc8 Qe7 Rf8 d7 Ka8 d8B Kb7 Qb2 c2 a8B+ Kc8 Bc6 Qg7 Bb6 Kb8 Qec5 Qg4 Qce3 Qd4 Qg5 Rf1 Qb1 c1B Qbc2 Bb2 Rd1 Bc1 Qde1 Be3 Qfd2 Bg1 Qef2 Qc3 Be3 Qd3 Bf4 Qd4 Bg3 Re1 Qdc3 Rf1 Rd3 Rc1 Rd1 Rg8 Q3d2 Rg7 Qgf4 Rg4 Qg5 Rf4
4r2K/1Rr1bQ2/2N1N2B/Nq1pn1n1/P2br2k/1B1n1pbn/NQ4QQ/8 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 Kd2 cxd4 Ke1 e5 fxe5 f4 a4 h5 Ra2 b6 Ra3 Ba6 Rg3 Bd3 Rg2 Bf5 gxf5 Ra7 Rg5 Ra8 Rg4 hxg4 Kd2 Ke7 Kd3 g5 Ke4 d6 c4 f3 h4 g3 e6 Kf6 e7 g2 e8Q d3 c5 g4 c6 b3 c7 d2 c8N b2 h5 Kg5 h6 b5 f6 d5+ Ke5 g3 e4 b4 h7 b3 f7 Qa5 Nd6 Nf6 Nb7 Ra7 Qe2 Nh5 Q8b5 Nf4 Nc3 b1N Na2 d1N Bd2 Kg4 Kf6 b2 e5 Nc6 e6 Ne5 e7 Nf2 e8Q N4d3 Bh6 Nh3 Rh2 Qb4 Na5 Kh4 Qc2 Re7 Ne2 g1B Nd4 g2 Ndc6 Rc7 Qe2 Rg8 h8Q Bd4 Qd2 g1B Qg2 Qb3 Be2 Rg4 Bd1 Nd2 Qh7 Qb4 Bb3 Bgf2 Rh1 Rg8 Rb1 Bg3 Qb7 Qb5 Qeb8 Ba3 f8N Rh8 Qe7 Ne4+ Kg7+ Neg5 Ne6 Re8 Qf7 Bf8+ Kg8 Bdf2 Kh8 Bd4 Rg1 b1R Rh1 Rb2 Rb1 Re2 Qb6 Ba1 Qbg1 Re1 Q1h2 Re4 Qb6 Bc3 Qbf2 Bd4 Qb2 Rb7 Rc1 Ra7 Rc4 Rc7 Rb4 Qa6 Rb8 Qb5 Rb7 Be7+
1BRK1B2/N1p2p2/2q2q2/P1b3n1/5Q1Q/Rr2RqR1/3b1qqn/1k3BrB w - - 0 1 legal: proof: c4 e5 g4 d5 cxd5 a5 f4 exf4 b4 axb4 h3 Na6 h4 Nb8 h5 Bf5 h6 Bg6 Qb3 Bh5 Qc2 Ra3 Qd1 Ra8 gxh5 Qd6 Na3 Qc6 Nc4 Qd6 Ne5 Qd8 Ng6 hxg6 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 b5 d4 Kc3 e4 g5 a5 g4 d6 g5 d7 g3 d5 f3 h7 g2 d6 g4 h6 f2 Kd5 g3 e5 b3 e6 b4 e7 b2 e8B b1Q Qh5 Kc2 Qe5 b3 Qf4 b2 Be3 Qc1 Ra3 b1Q Nf3 g1B Ba7 g2 Ne5 Na6 Kc6 Qf6 d8B Qa2 Kd7 Kb1 Be7 Rb8 Nc6 Rb3 Bb8 Nc5+ Kd8 Ne4 d7 Ng5 Na7 Qcc6 Rh3 Qe2 Re3 Qef3 Kc8 Bh2 d8R g1Q Rdd3 Qgg2 Kd8 Bg3 Bd7 Bh4 Bc8 Bg3 Bb7 Bh4 Be2 f1Q Ba8 Qfg1 Bf1 Be1 Bb7 Q1f2 Rc3 Qh5 Rg3 Qhf3 Re3 Bd2 Ba8 Qa1 Bb4 Nf6 Bc5 Rg8 h8Q Qb5 h7 Ng4 Qhd4 Rg6 h8R Nh2 Qh4 Rg7 Qdf4 Qbc6 Bb4 Bc5 Rhe8 Bd4 Bf8 Bc5 Qfg4 Qh1 Rd3 Qf5 Rgf3 Ne6+ Kc8 Qce4 Rde3 Qaf6 Bc6 Qh5 Qf4 Rg1 Rg3 Ng5 Kd7 Qa4 Rc8 Qb5 Ke8 Qb7 Kd7 Qd5+ Ke8 Qdd6 Bh1 Qbg2 Bc4 Qb6 Bf1 Qhf3 Kd7 Qe5 Kd8 Qbc6 Re4 Qg7 Re3 Qgf6+
q7/1n1N1QK1/1r3r2/B3n2Q/k2BQp1p/3P2B1/1Q3bNn/rBq1bn1R w - - 0 1 legal: proof: g4 d5 c4 dxc4 f4 b5 b4 g5 a4 gxf4 axb5 e5 h3 Be6 g5 Bg4 Ra3 e4 Rf3 exf3 hxg4 Qd5 Rh2 Qd3 Rh1 Qd8 Kf2 Kd7 e4 h5 e5 f5 b6 Kc6 b7 Kb5 g6 c5 e6 a5 e7 h4 e8Q+ Nd7 b8B a4 g5 a3 g7 a2 g6 a1R Qe4 Qe7 Bc7 Rh5 Bd3 Rh6 Ne2 R8a6 Bb2 Rb6 Bd4 Ngf6 g8Q Qe8 g7 Qa8 Qh8 Ne8 g8Q Ne5 Qf7 Nd6 Qc1 Nb7 Qb2 Be7 Na3+ Ka4 b5 c3 Bb1 c4 d3 Rhf6 Qhh5 c2 Bd8 c3 Nc4 c1Q Bc7 Nc6 Ne5 c2 Nd7 Bc5 Bd8 Ne5 Bc7 Rbd6 Ba5 Bb4 b6 Be1+ Kg1 f2+ Kg2 f1N Kh3 f3 Nf4 f2 Ng2 Nd8 b7 Nh2 b8B f1N Bbc7 Nb7 Bb8 Rb6 Bd6 Ng6 Bg3 f4 Qef5 Nf3 Kg4 N3h2+ Kg5 Ne5 Qe4 Qd1 Qhg6 c1B Kh6 Be3 Kg7 Qc1 Qh5 B3f2
4NK1N/Q2r3R/1qQb4/1QB1k1p1/n2Nrq2/nPQ1N3/bq3r1p/Bq6 w - - 0 1 illegal: No possible last move
1Rn1q1rr/RQ5q/2q1nk2/3b1p2/2QP1b2/1N2N3/nBp1N1K1/n2N1QQ1 w - - 0 1 illegal: No possible last move
1R1B4/2Qb2q1/b1q1q1Q1/N1rp2qN/K1B2r1p/1Q2QB2/3n2P1/nrk3B1 w - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 g5 Nc3 Be7 Nb1 b5 d4 cxd4 axb5 g4 Ra3 Bf6 Rf3 Bg5 hxg5 gxf3 Kd2 Ke7 e4 Kd6 c4 Ke5 Kc2 d5 Kb3 a5 g6 f5 b6 h5 b5 d3 c5 Kd4 b7 f2 g7 a4+ Ka3 f3 c6 f4 c7 d2 e5 Ke3 b6 h4 e6 Na6 b8Q Nb4 b7 Ra5 e7 Nf6 e8Q+ Ne4 g8Q Bd7 Qh7 Nc2+ Ka2 a3 Kb3 a2 Rh2 a1Q Rh3 Rf8 Qhg6 Qg7 Na3 Qg5 Ne2 Na1+ Kb4 Rf6 Ng3 Rb6+ Bb5 f1Q Nh5 Qe1 Nc4+ Kd3 Bb2 Qe2 Rh1 f2 Bf6 f1B Bd8 f3 Qa7 f2 b8B Qee3 Qb7 Rf6 Ba7 Rf4 Qa4 Be2 Rb1 f1Q Qd1 Qh3 Bg1 Qhg4 Qc1 d1R Qe5 Re1 Qe3+ Kc2 Ba6 Rc5 Na5 Qe6 Qb5 Bd3 Ka4 Nd2+ Rb4 Kd1 Qc3 Be2 Qc6 Bc4 Rb8 Qd3 Qb4 Qdc3 Bb5 Be2 Bd3 Qc4 Be4 Bd3 c8B Kc2 Ba6 Rb1 Bb5 Kc1 Qc7 Qc2+ Qb3 Bf1 Bc6 Ba6 Bb5 Qc4+ Ka3 Qcc3 Bf3 Qc2 Bf1 Rb5 B1e2 Qcc6 Bc4 Rc5 Kb4 Rb5+ Ka4 Rc5+
B3Qq2/N2nb1n1/kB3q2/p2Pbp2/4b1N1/r1b2KBQ/Q4nRQ/B3r3 w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 Kd7 Ke2 c5 d4 Kc7 h4 Kb6 d6 a5 d7 g5 e5 f5 e6 g4 h5 c4 e7 c3 e8Q c2 h6 Qg5 d8B+ Ka7 h7 Kb7 b6 Be7 b5 Nf6 Na3 Nbd7 Bb2 c1Q Qb3 Qc5 Qa2 Nh5 Rh2 Qf6 Nh3 g1B Ba1 g2 Nf2 g3 Ng4 Ng7 Kf3 Bf2 Bc4 g1B Rg2 Be1 Bd3 Rg8 h8Q Bh2 Qh3 Bc3 Be2 Qcd6 Bd3 Qf8 Bb1 Qdf6 Be4+ Kb8 b7 Ka7 b6+ Ka6 b8Q Bb7 Nb5 Ra7 Rc2 g2 Qe5 Bc6 b7 Bg3 Qd6 Be5 b8B Ra8 Na7 g1N+ Ke3 Rh8 Bb6 Bb7 Bf3 Be4 Rg2 Rh5 B8c7 Rc8 Bb8 Rc4 B8c7 Ra4 Bb8 Ra3 B8c7 Bd3 Ba8 Be4 d5 Rh6 Qg3 Rh1 Qh3 Q6f7 Qdh6 Qf6 Qh2 Nh3 Qhh5 Nf4 Q5h3 Nd3 Ke2 Nf2 Bd6 Bc2 Kf3 Re1 Bb8 Bed4 Bf4 Be5 Bg3 Be4+
3b4/3B2b1/pNp2Bq1/4RnK1/NrB3BP/3Q1N1r/q3Q1r1/k3rqNn w - - 0 1 legal: proof: d4 b5 g4 d5 c4 dxc4 a4 e5 axb5 h5 Bh6 hxg4 Bg5 Nh6 Bc1 Ng8 b4 Ba6 e4 Qc8 d5 Ne7 Ra2 Kd8 Rd2 Ke8 Rd3 Qd8 Rd4 exd4 f3 Bc8 e5 Bf5 Ke2 Ng8 Ke1 Be4 fxe4 Rh4 Qc2 Rh3 Qd1 Rh8 Kf2 Kd7 Kg3 f5 Kf4 g5+ Kg3 a6 e6+ Kd6 h3 Ke5 d6 c6 e7 f4+ Kg2 g3 Kf3 c3 Kg4 g2 e8B c2 b6 d3 b7 Kd4 d7 d2 b5 f3 b6 f2 e5 Bg7 e6 Ne7 Qe2 d1R Qe1 Nf5 Bh5 Qg8 d8Q+ Nd7 e7 Rb8 e8B Qa2 Qe2 Re1 Nd2 Kc3 Ndf3 Nc5 Bd7 Nd3 Bb2+ Kb3 Bd4 c1B Bf6 Bd2 Rh2 Kc2 Rh1 Kb1 Rh2 Ba5 h4 Re8 Rh3 Re5 Rh2 Rc5 Rh3 Rc3 Rh2 Ka1 Rh1 Ra8 b8N Ra7 b7 Ra8 Qde7 Bd8 Qa3 Ra7 Be6 Ra8 Nd7 Ra7 b8N Rb7 Be8 Rb4+ Kh5 g4 Nc5 g3 B8d7 Re4 Na4 Rb4 Nh3 g1R Kg5 Rg2 Nhg1 Rh2 Bh3 f1Q Bc4 g2 Bg4 Nf2 Qb3 Rh3 Qbc2 Rh2 Qcd3 Rh3 Bc8 Rg3 Nd7 Rh3 Rh2 Nh1 Ndb6 Rg3 B8e6 Rh3 Bd7 Rg3 Nh3 g1Q Rf2 Qgg2 Nhg1 Rh3 Qe7 Qg3 Re2 Qd6 Re5 Rc2 Ra5+ Rcb2 Qee2 Qe6 Re5 Qd6 Qee4 Rg2 Qee2 Qe6 Bd5 Qf7 Bc4 Qg6+
n2r1R1b/2N2rkp/1QRbQq2/4B1pP/2B2RnR/2q1B2b/2b5/n1K2B2 w - - 0 1 legal: proof: e4 c5 g4 d5 b4 dxe4 a3 a5 bxc5 b5 a4 f5 Nc3 fxg4 Nd5 Nf6 axb5 Ng8 Nb4 axb4 f4 Kf7 h4 e5 c4 g5 d4 g3 Kd2 g2 d5 b3 b6 b2 f5 b1B c6 Kg7 f6+ Kf7 d6 Ra6 d7 Ra4 c5 Ra5 h5 Qe7 d8Q Bh3 b7 Ra7 c7 Nh6 c8R Ng4 c6 Nd7 b8B Bc2 c7 Nb6 Nf3 g1B Qe2 Na8 Ra4 Bd4 Qe3 Kg8 f7+ Kg7 Qe2 Bb2 Nd4 Qf6 Nb5 Bd6 f8R Rg8 Qc4 Bd4 Qe6 e3+ Ke2 Ba1 Rf4 e4 Ke1 e2 Be3 Bd4 Kd2 e1N Kc1 B4e5 Qde8 Rb7 Qc6 Bd4 Qb6 Bc3 Bg1 e3 Bf2 e2 Be3 Bg2 Rh4 Bh3 Rcd8 Rh8 c8B Rf7 Ba6 Rg8 Rc8 Ba1 Rc5 Bd4 Rfc8 Rd8 R5c6 Rh8 Ba7 Ba4 Rb8 Qg6 Bg1 Nc2 Qd8 Kh6 Bb6 Na1 Be3 Bc2 Bc5 Rhf8 Qb6 Bh8 Bcd4 Qf6 Be5 Kg7 Nc7 Rc8 Bc4 e1Q+ Kb2 Qc3+ Kc1 Rd8 Rc8 Rdd7 Rf8 Rd8
K1r3r1/5k2/3rR3/bn2qnr1/R2QQQp1/1BQ1b1Pp/1n1B3N/2BB3n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 Bd2 Bb7 Be3 Be4 Bc1 Bg6 hxg6 Be7 Nd2 Bd6 Nb1 Bf8 Kf2 h5 Kf3 d5 c4 a5 e4 f5 b4 h4 b6 d3 b7 a4 b5 h3 e5 a3 e6 d4 g7 d2 c5 d3 b6 a2 c6 Bc5 e7 Nh6 g8B Qd6 c7 Be3 Bb3 Qe5 Nc3 Nc6 b8B Ra5 b7 Na7 Rh2 Rg8 Na4 Nb5 Nb6 Ra4 Be2 Rc4 c8Q+ Kf7 Qe1 d1R Qb4 d2 e8Q+ Kg7 Qed8 Kg6 Qd4 Kf7 Rb1 a1B g3 Bc3 Rh1 Ng4 Ra1 Nf2 Rh2 Nh1 Ra4 Rf8 Qc6 Rg8 Qbc5 Ba5 Qce4 Rf1+ Rf2 d1N Nc8 Nb2 Bed1 Re1 Rd2 Re2 Rc2 Rd2 Qc3 Rd6 Q5d4 Qe7 Ba7 Qe5 b8Q g4+ Ke2 Re6 Nf3 Rd6 Nh2 Rg5 Bc5 Rg8 Bb4 f3+ Ke1 f2+ Ke2 f1R Rd2 f4 Rd3 Bf2 Re3 f3+ Kd2 Bg1 Re2 f2 Ke3 Qe7 Kf4 Qc7 Ke5 Re1 Re3 f1N Re2 Re6+ Kd5 Be3 Qc5 Qe7 Qbf4+ Rf6 Q3d4 Rf5+ Kc6 Qe5 Kb7 Rf6 Qh6 Rd6 Bbd2 Rg5 Ka8 Rg8 Rg2 Re2 Rg1 Rf2 Rg2 Rf5 Re2 Rfg5 Re1 Bf4 Qb4 Ne3 Qbc3 Nf5 Re2 Be3 Re1 Rh5 Qhf4 Rhg5 Qec2 Bf2 Re4 Be3 Qb1 Qf6 Re6 Qe5 Qbe4 Rcxc8+
2Bbb1N1/B3nq1k/n7/Qb4Br/1b3P2/pR2B1q1/RK2b1pR/Q4Rb1 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 a4 hxg4 Nd2 c5 Ne4 b5 axb5 cxd4 Kd2 Ra6 Ke1 Rah6 e3 fxe4 f5 Rh3 Bd2 Rf3 Bc1 Rf4 exf4 Qb6 Nf3 Qc7 Ng1 Qd8 Kd2 Kf7 c4 d5 Kc2 g5 h4 Kg7 b4 e5 b6 d3+ Kb2 e3 h5 g3 c5 d4 b5 g4 h6+ Kh7 b7 a4 f6 d2 b6 g2 f7 e2 c6 e1Q c7 g3 Ba6 d3 Ra2 e4 Ne2 g1B Nc3 e3 Ne4 Be7 f8B Bd7 c8Q g2 Qc5 e2 Qa5 Qe8 Rh2 Bh4 Be7 Qf7 Bg5 Be8 Rh1 Ne7 Nf6+ Kg6 h7 Qg3 Qe1 d1B Be3 d2 Ng8 Kg7 Qf1 e1B Rh2 Be2 Rh1 Nd7 b8B d1B b7 Bb4 Bba7 Nc5 b8R B2b5 Bc8 Bde2 Qa1 Na6 Nf6 Rf8 h8R Rg8 Rh6 Rh8 Ng8 Rh7 Rh2 Kh8 Rc6 Rh5 Rc1 Kh7 Rf1 Ng6 Bh6 Bd8 Bg5 Ne7 Rb7 Bd6 Rc7 Bb4 Rc3 Bf2 Rd3 Bg1 Rb3 a3+
QB2k3/NR4K1/p1rr3b/1q1P1BQ1/1p2B3/2BRp1bn/1nQ4Q/2r2nb1 w - - 0 1 illegal: No possible last move
k2N4/n1KRBb2/b3p1n1/4q1q1/1Q2NPQ1/QN2npbN/1r2pr1Q/6R1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 f5 e3 g4 Be2 Qd6 Bf3 gxf3 axb5 Qh6 e4 fxe4 Na3 Qh3 Nb1 Qxh2 Kf2 Kd7 Ke3 a5 Kd4 h5 Kc5 h4 d4 a4 g4 e3 b4 a3 d6 h3 d5 a2 b6 e2 b7 Nc6 b8Q Qg3 b5 h2 b6 Na7 g5 Ba6 g6 Qg5 b7 e6 g7 Ne7 g8N Ng6 Qb3 Be7 Qf8 Rb8 Qb4 c6 Kb6 c5 Be3 c4 Bc5 c3 Nd2 c2 Nh3 c1Q Rg1 h1B Nb3 Qe3 Rad1 a1N Qf5 Nc2 Qa3 Rh6 Qg4 Qee5 Nf6+ Kd8 d7 Ne3 Bd6 Bg2 Ne4 Bf6 Bf8 Be7 Rd3 Bb4 Rdd1 Be1 Bc5 Bg3 Rd4 Rc8 b8Q Bf1 Bf8 Rh5 Qbd6 Rc2 Qdb4 Rh6 Ka5 Kc7 d8N Ra2 Be7 Rb2 Rd1 Kc8 Kb6 Kb8 d6 Ka8 d7 Bg2 Rd6 Rh5 Kc7 Rh6 Nhf2 Rh2 Nh3 Bf1 Nf7 Rf2 d8Q+ Bc8 Qh8 Bg2 Nd8 Ba6 Rc1 Bf1 Ng1 Bg2 Qh2 Bh3 Ra1 Qd5 Rd7 Qdf5 Qh5 Bg4 Nh3 Qd5 Qh4 Bh5 Rg1 Qd4 Qg4 Qde5+ Qd6 Nf8 Qb4 Bf7 Qa3 Ng6 Qb4 Qb5 Qa3 Qbf5 Qdb4 Qe5+
2K5/P2nB3/p1NQB1pB/3q4/2N3pr/r1QN2qn/2NR1q1b/3Bb1kn w - - 0 1 illegal: No proof kernel
nk5K/3b1B1b/nN4p1/N1N1r2p/qp4Rn/2BQ2P1/2Q1r1Q1/2NQ1r1r w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e5 h4 exf4 a4 g6 h5 Bh6 Ra3 Bg7 b4 axb4 h6 bxa3 hxg7 Qd7 Qc2 Qe7 Qd1 Qd8 Kf2 Kd7 Kf3 f5 d4 b5 e4 h5 g3 c5 e5 Kc7 a5 a2 e6 a1R a6 b4 e7 c4 e8Q c3 a7 c2 d6+ Kb7 d7 Nf6 g8Q Na6 d5 Ra4 d6 Ra5 Bc4 Rc5 Nd2 Re5 Ne4 Nd5 Rh4 Qa5 d8Q Bd7 Bb2 c1R Rg4 Ndc7 Bc3 Qa4 Ne2 Rc8 a8N Kb8 Qc2 Rh1 Nb6 Na8 Qd5 Rf8 Nc1 Rf6 Nc5 Rf7 Kf2 f3 Qdd1 f4 Qg8 Rf8 Qgd5 Rf6 Q5d3 Rf7 Qh4 Rce8 Qh2 Rf6 Bf7 Rff5 Qhg1 Re2+ Kf1 f2 Kg2 f1N+ Kf3 Ne3 Qg2 Rf8 Ke4 f3 Kd4 f2 Ke4 f1B Kd4 Rff2 Ke5 Nf5+ Kf6 Nh4+ Kg7 Rfe8 Kh7 R8e5 Kh8 Be8 d7 Rff5 d8N Bd7 Qgf3 Bh3 Qc6 Rff1 Ndb7 Bg2 Na5 Bd5 Qd4 Bc4 Q4d3 Ba2 Qg2 Bd5 Be8 Bg8 Bf7 Bh7
Q2RNn2/QRr1k1nb/R1B1qp1R/2pr2Q1/2p1K3/rb5P/Q6n/B1n5 w - - 0 1 illegal: No possible last move
1bRB2r1/p1Q5/1r1BR2n/1RP2n2/kp2BR1K/p4QN1/1Bb2qb1/5bn1 w - - 0 1 legal: proof: b4 b5 e4 e5 d4 exd4 a4 h5 g4 f5 exf5 c6 gxh5 bxa4 Nc3 c5 b5 Ba6 Na2 Bc8 Nb4 cxb4 h4 d5 c4 Kd7 f4 g5 Kf2 d3 Kg3 d2 h6 a3 f6 d4 h5 g4 b6 Kc6 f5 d3 b7 Qe7 h7 Kb6 f7 Ka5 h6 Na6 b8Q Qg5 f6 Qd5 Qf3 d1B Rh5 d2 Qc7+ Ka4 Ne2 Qd4 Kh4 Bd6 f8B Qf2+ Ng3 Nc5 f7 Be2 Bb2 d1B Bg2 Ne6 Rb5 Bf1 c5 Bc2 Re1 Nd4 Re6 Rb8 Bh1 Be5 Bd6 Rb6 f8R Bb7 Rf4 Bd5 Qd3 Bc6 Be4 Bb7 Qf3 Nf5+ Kg5 Nge7 Kh5 Rg8 h8B Ba8 h7 Nh6 Bf6 Nef5 h8R Bc6 Nh1 g3 Bd8 g2 Ng3 g1N B8e7 Rg6 Rc8 Rg8 Bd8 Bd5 Qe7 Bdc4 Qb7 Bg2 Qc7 Bcf1 Qg7 Qe1 Bf8 Nd4 Kh4 Bb8 Bd6 Qf2 Qc7 Ndf5+
3QR2b/pk3pr1/4qBB1/R1P1B1KQ/1n1Q1nQ1/2r4B/2p1b1n1/r2n2N1 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 e5 gxh5 exf4 c4 d6 Na3 d5 axb5 cxb4 c5 Nf6 Nc4 dxc4 Ra4 Ng8 Ra3 Na6 Ra1 Nb8 Kf2 Kd7 Kf3 Kc7 d4 g5 h4 b3 e4 b2 b6+ Kb7 e5 b1R d5 c3 d6 c2 h6 Be7 h7 Qe8 h5 Nh6 d7 Na6 d8Q Bf6 e6 Nb4 e7 Nf5 Kg4 f3 h6 f2 Ra5 Ra1 Bd3 f1N Bb2 Nh4+ Bf5 Bg7 Bf6 Ne3+ Kh5 g4 Bg6 g3 Qg4 g2 Kg5 Qd7 e8B Qe6 Bd7 Nd1 Rh2 Rg8 h8Q Rb8 Qh7 Bh8 Rh3 Rb1 Re3 Rg7 Re4 Ra1 Re5 Qc6 Re8 Qe4 Bf5 Qe6 Qdd4 Bd7 Qg8 Bb5 h7 Bf1 Qh5 Rd8 Bh3 Be2 Qdg4 Rd3 Qf8 Kc6 b7 Rc3 b8B Kb7 Bc7 Bc4 Bce5 Be2 Nf3 g1N Qe7+ Qd7 Qd8 Qe6 Qdd4 Ng2 Qd8 Ba6 Qdd4 Ne2 Ng1 Nef4 Qd8 Rg8 Qd4 Bg7 h8Q Be2 Q8h6 Bh8 Qf8 Rg7 Qfd6 Rd3 Qd8 Rc3
KbB1BQBr/p1k1Nb2/n2q1p1r/q2R4/p7/Bb4PN/q6N/2NQ3r w - - 0 1 legal: proof: a4 d5 f4 b5 c4 bxa4 cxd5 e5 b4 exf4 g3 g5 Ra3 Nc6 Rd3 Ne5 h3 Ng4 Rd4 f3 Rf4 gxf4 hxg4 Qf6 Bb2 Qd6 Bc1 Qd8 Kf2 Kd7 e4 c5 d4 h5 d6 f6 e5 c4 g5 c3 b5 c2 g6 h4 d5 h3 b6 h2 g7 Rh6 b7 Rh3 b8Q Rh5 e6+ Ke8 d7+ Ke7 Ba6 Qe8 d8N Qb5 d6+ Ke8 e7 Kd7 Ne6 Qa5 Ne2 Rh6 Ba3 c1Q Ng5 Qcd2 Nh3 Qa2 e8B+ Kd8 d7 Bd6 Rg1 h1R Nd2 Ne7 g8B Nc6 Nf1 Nb4 Nh2 Be5 Bb7 Na6 Qbd6 Rb8 Qf8 Kc7 d8N Be6 Bc8 Bf7 Nc6 Bb3 Ne7 Ra8 Kf1 f2 Kg2 f1B+ Kf3 Bd6 Ke4 f3 Nc1 f2 Kd4 Bfc4 Re1 f1Q Re5 Bf7 Rc5+ Kb6 Rd5 Bb8 Ke4 Kc7 Kd4 Nb4 Ke4 Qf5+ Kd4 Qa6 Kc5 Qd6+ Kb5 Qff4 Bf5 Qfd2 Qg7 Qac2 Bgh7 Be6 Bd7 Qa2 Bc6 Nd3 Ka6 Bf7 Be6 Kd8 Kb7 Bc7 Bb5 Qa5 Bed7 Rc8 Bbc6 Bb8 Ka8 Kc7 Bb7 Rf8 Bbc8 Nc5 Be8 Rh8 Bg8 Na6 Qf8 Rg1 Ng5 Re1 Nh3 Rh1
rbQ1n3/n7/2Qnpp2/4q1Q1/Q2nnP2/1R3N1R/B2p2bN/RK1R1b1k w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 g4 d4 g3 d5 c6 f3 cxd5 Qe2 dxe4 Qd1 e3 Ke2 Bg7 Ke1 e2 Kd2 Bf8 h4 a5 h5 Na6 Kc3 Qb6 Be3 Ra7 Bf2 gxf2 g4 Nb8 g5 Ra6 Kd3 Qc7 Kd2 Rg6 hxg6 Qd8 Kc1 e1N b4 h5 c4 d5 f4 Kd7 g7 Kd6 g6 e6 b6 a4 b5 d4 b7 h4 c5+ Kd5 c6 Ke4 c7 h3 b6 a3 Ba6 f1B Bb5 h2 Qh5 a2 Qh6 d3 Ba4 Qd5 Kb2 Qe5+ Kc1 Ng2 Bb3 Ne3 Nf3 Nc6 b8R Bd6 b7 Na7 Qg5 Nf6 g8Q Nf5 g7 Ne8 Nbd2+ Ke3 Qf8 Kf2 g8Q f6 Ra8 Bd7 b8R Bc6 c8Q Be4 Rb1 a1N Qc6 Nc2 Ba2 Ncd4 R8b3 Bb8 Qa3 Nfd6 Qaa4 Bd5 Ra1 Be4 Rg1 h1N Nh2 Beg2 Ndf3 d2+ Kb1 Ng3 Rh1 Nge4 Qf8 Ba6 Rd1 Baf1 Qfg8 Ng7 Qgc8 Nge8 Ne1 Kg1 Rh3 Nab5 Nef3+ Kh1 Ra6 Na7 Rb6 Rh7 Rb3 Rd7 Q8b7 Rd8 Qa8 Bc7 Qab7 Ra8 Qc8 Bb8
6k1/2NbR1Nq/Pb5Q/N2n4/1Qb2qQ1/p1B2r2/Kpp2nbN/Q1qR4 w - - 0 1 illegal: No proof kernel
4Br2/7P/p4BRB/k1bK1n2/qp2QpB1/6R1/NQQqnn2/nQ1b2q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 b4 exf4 a4 bxa4 b5 c5 Nc3 Ba6 Na2 Bc8 d4 d6 c4 a6 d5 Bg4 b6 Bc8 Nb4 cxb4 c5 Ra7 Qd2 Rc7 Qd1 Rc6 dxc6 Bd7 Ra3 Bf5 Ra1 Bc8 Kd2 g5 Kd3 f5 Kc4 g4 e4 g3 h4 f3 h6 f2 c7 Kd7 c6+ Ke7 e5 g2 b7 a3 h7 a2 h5 Qd7 e6 Nh6 Ne2 g1Q Bh3 f1Q Bg4 Qgg2 Rg1 Rg8 h8Q d5+ Kc5 d4 Nc3 Qd2 Rg3 Ke8+ e7 d3 Rb1 a1N Na2 Qh1 Qb2 Qg1+ Kc4 Qe2 Bg5 Qd2 Bf6 Rh8 Qe2 f4 Qe4 Nf5 h6 Qdf2 h7 d2 Bg5 d1N Bh6 Qfd2 Rc1 Nf2 Rcc3 Kf7 e8B+ Kf6 Qeb1 Ke6 Rcd3 Bc5 Rd6+ Ke7 Rg6 Rf8 Rd6 Qd8 Rg6 Bd7 c8Q Qa5 c7 Nc6 b8B Ncd4 Ba7 Ne2 Qa8 Ba4 c8Q Bd1 Bb8 Qa3 Be5 Qa4 Bf6+ Kd6 Qg2 Nc1 Qcb7 Ne2 Q7e4 Kc7 Qec2 Kb6 Qge4 Bd4 Kd5 Ka5 Qe3 Ba7+ Qed3 Bd4 Qe4 Bc5+
3K4/p4R2/1BB2B1n/Rrbr1N2/rB1QR3/2Q1p3/1nrPp1q1/1R1q1nk1 w - - 0 1 legal: proof: e4 d5 c4 dxc4 g4 b5 a4 f5 axb5 fxe4 f4 h5 f5 Bb7 f6 Bc6 Nc3 Nd7 Nd5 Nb8 Ne3 Bd5 Bh3 Be6 Bf1 Bf5 gxf5 Kd7 Ng4 hxg4 Bg2 Ke8 Bh3 Qd4 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 e5 b4 c5 h4 e3 h5 Ke4 b6 g3 h6 e2 b7 g2 b5 c3 b6 c2 h7 c4 Rh5 c3 Ra2 Nh6 Qe1 Nd7 b8R Bc5 b7 Nb6 Qd1 Qd5 f7 Na4 f8R Nb2 Rf7 Rd8 Nf3 g1N Nh4 Nf3+ Kg6 Rd7 h8Q Nh2 f6 Rd8 Bh3 Nf1 Nf5 Kf3 Ra5 Kf2 Bg2 e4 Rh4 e3 Re4 Kg1 Qe1 Qc6 Qh4 Rd3 Qf4 Rd5 Qe5 Qa4 Qd4 Qa1 Rc7 Qb1 f7 Qa1 f8B Qb1 Rbc8 Rb8 Rf7 Qa1 Kg5 g6 Kf6 g5 Bd6 g4 Ke7 g3 Kd8 Qa4 Bh1 g2 Qhg7 Nc4 Bb2 c1R Qh8 c2 Qc3 Re1 Qhd4 c1R Ba1 Qd1 Bb2 Ra8 b8B Rc2 Bc7 Rb8 Bb6 Rb7 Ba1 Nb2 Rcc7 Kf2 Rc8 g1Q Rb8 Qg2 Bc7 Rb5 Bb6 Nd3 Bb2 Re5 Be7 Kg1 Ba3 Nb2 Bf6 Qg7 Bf3 Qg2 Bb4 Rd5+ Rd7 Qc1 Bc7 Nd1 Rh4 Rd6 Bc6 Rb6 Ba3 Rd5 Re4 Rb4 Rb6 Ra4 Rb4 Nf2 Rb3 Nd3 Bb6 Qa1 Rbb5 Rb1 Rb4 Rbb2 Rbb5 Qd1 Rb3 Ra2 Rb2 Rb4 Rb1 Rb5 Bb4 Ra1 Be5 Ra4 Bf6 Bd6 Rg7 Nb2 Rf7 Bc5+
2Nb1N2/q4Pr1/bp1pb2Q/1pq1p2B/1N2K2Q/4p3/2n3NR/1k1BBnB1 w - - 0 1 legal: proof: e4 h5 d4 c5 g4 cxd4 gxh5 a6 b4 Qa5 e5 Qc7 e6 Qd8 b5 axb5 a4 f5 Ne2 Ra6 Ra3 Rd6 Re3 Rd5 Re4 fxe4 Rg1 d6 Rh1 Rc5 Ng1 Rc7 Bd3 Rd7 exd7+ Kf7 Be2 Nh6 Bf1 Ng8 Kd2 Kf6 h4 Ke5 f4+ Kd5 c4+ Kc5 h6 Kb4 c5 e5 a5 g5 c6 d3 Ke3 d2 h5 b6 a6 g4 f5 g3 c7 g2 a7 Qe7 d8B Nd7 a8B Ngf6 h7 Ne8 h6 Nef6 Qa4+ Kc5 Nh3 d1B Na3 Ne8 f6 Qf7 Nf4 Bb3 Nc2 Nb8 Rh2 Ba6 c8N Rg8 h8N Rg7 h7 Be7 Nb4 Nc7 Be2 Nc6 Nhg6 Nd4 h8Q Be6 Bh5 Kc4 Nf8 Kc3 Bd2+ Kb2 Be1 Kc1 Qh6 g1Q+ Bf2 Kb1 Ng2 Qf1 Bc6 Qc4 Bg1 Qc2 Bd5 Qc5 Bb3 Nc2+ Ke2 e3 Kd3 Nd5 Ke4 Nf4 Rh1 Qe8 f7 Ne2 Rh2 Bf6 Be7 Qd7 Bd8 Qa7 Be7 Ncd4 Bd1 Bh4 Bg5 Nc2 Bf4 Bd8 Bg3 Kb2 Be1 Ng3+ Kf3 Nf1 Ke4 Na3 Qc2+ Ka1 Qf2 Kb1 Qh4 Nc2
2N4Q/2k5/2rN1qp1/3QnNqB/2RBnB1r/2nB1K1N/2rr1nP1/1br1b3 w - - 0 1 illegal: No proof kernel
BBq2k1r/N2Qbq2/3rQBRp/b1R5/q1r4P/nRq1bn2/K1b5/R5B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 g6 Nc3 fxe4 f5 g5 Nce2 Nf6 Nf4 gxf4 Bc4 Ng8 Bd3 Bb7 Bf1 Bc8 Kd2 d5 c4 a5 Kc2 e5 Kb1 a4 g4 f3 b4 d3 h4 d2 g5 a3 g6 f2 b6 a2+ Kb2 d4 b5 h6 c5 d3 c6 e3 f6 e4 g7 e2 c7 e1Q b7 e3 b6 e2 Nh3 Na6 b8B Ne7 g8Q Nc6 b7 Nd4 Nf4 Nf3 Qh7 Bf5 c8R Nc7 Qb3 d1Q Ne6 d2 Rg1 Nb5 Rc5 Ra4 Nd4 Qc8 Qe6+ Be7 f7+ Kf8 Rg6 Bc2 Bg2 f1Q Nc6 Na3 Na7 Rc4 Bh2 Qg3 b8B e1B Bg1 Bf2 Bh1 Be3 Bg2 Ne1 Ba8 Nf3 Rb1 a1B+ Ka2 Qff2 Rb3 Bc3 Bb2 Ba5 Bf6 Qe5 Rg4 Qff1 Qd3 Qd4 Rg6 Qde1 Qdf5 d1R Qd3 Qdc3 Qdd7 Rd6 Bd4 Ng5 Qf6 Qb4 Qfe6 Qa4 Rf6 Kg7 f8R Qc3 Rg6+ Kh7 Rff5 Qf4 Rfd5 Qf7 Bf6 Nf3 Rd4 Bf2 Rd1 Be3 Bg7 Kg8 Bf6+ Kf8 Rf1 Ra6 Ra1 Rd6
2QbrBb1/2Kb1R2/1r1BNrr1/2B1Q2p/Q3q3/1n5n/2pR3P/n1kB1Q1r w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Na3 gxf4 Nb1 e5 Nc3 f3 Nd5 Kd7 Nf4 exf4 Ra4 Ke7 Ra1 Ke8 Kf2 Kd7 e4 Kd6 d4 h5 g4 f5 b4 a5 e5+ Kd5 e6 Ke4 d5 c5 d6 c3 b6 a4 g5 c4 e7 a3 e8Q+ Qe7 b5 c2 d7 c3 d8B a2 g6 Nc6 g7 Nd4 b7 Ra6 b8B Rg6 b6 Nh6 g8Q Bd7 b7 Nf7 Bb2 c1R Ba5 c2 Qh7 Rb1 Nh3 Ng5 Be2 Nb3 Qc8 Qe5 Bd2 Be7 Qf1 Re8 Ba3 Rb2 Re1 a1N Rd1 Kd4 Qg8 Qe4 Bbd6 Rb1 Qa8 Rb2 Be3+ Kc3 Rd2 Rb1 Bac5 Kb2 Bd1 Kc1 b8Q Rb2 Ke1 f2+ Ke2 Rb1 Qa4 Rb2 Ng1 Nh3 Nf3 Rb1 Ng5 Rb2 Qg2 f1R Ne6 Rg1 Qf1 f3+ Ke1 f2+ Ke2 f4 Qbb5 Qf3+ Kd3 Qe4+ Kc3 f3 Bh6 Rf6 Bf8 Rg4 Qh8 Rgg6 Qbc4 Rb1 Kb4 Rb2 Rg1 Rb1 Rg4 Rb2 Rf4 Rb1 Qe1 f1B Qe2 Bg2 Qf1 f2 Qd4 Bf3 Kc4 Be2+ Kb4 Bc4 Qe5 Nd4+ Ka5 Ndb3+ Kb6 Rb2 Nc7 Bg8 Ne6 Rb1 Kc7 Rb2 Qfa6 f1R Qc8 Rh1 Qg7 Rh6 Qg1 Rhg6 Rf5 Nd4 Rff2 Rb6 Qf1 Ndb3 Rf3 Rh6 Rf4 Rfg6 Rf7 Rf6 Qab5 Rhg6 Qa4 Bd8+
1N1KB3/3pB3/bBQPr1qq/4R2n/3nn2N/q1q3b1/bN1r2p1/3Q1NBk w - - 0 1 legal: proof: g4 e5 b4 h5 f4 hxg4 a4 exf4 a5 c5 Ra4 b6 axb6 Rh6 b5 Rh8 Rb4 cxb4 Kf2 Ke7 d4 Ke6 c4 Kf5 h4 Ke4 b7 g5 h5 a5 d5 f5 e3 a4 c5 a3 b6 f3 Kg3 f2 c6 a2 c7 a1Q h6 b3 h7 b2 Rh5 Ra6 Nf3 Nc6 b8B Nd4 b7 Re6 Ba7 Qf6 b8N Qh6 Be2 f1Q Nh4 Qa3 Bb6 Ba6 c8Q Nf6 Qc6 Rg8 Bc4 Qfd3 h8B Qdc3 Bg7 Bc5 Bf8 Rg7 Be7 f4+ Kf2 f3 Kg3 f2 Nd2+ Ke5 Bb3 b1B Nf1 Ba2 Bc2 Bd6 Bg6 Bc7 Be8 Rg6 Bb2 Rd6 Bc1 Ke4 Bd2 Qcb3 Bb4 Qc3 B4c5 Re6+ Kg2 g3 Kh3 Nb5 Bd4 g2 Bdc5 Bg3 Bd4 Nh7 Kg4 g1Q Bdc5 Ke5 e4 Nd4 Kh3 Kf4 e5 Ke4 Kg4 Rd6 e6 Rf6 Bf8 Rg6 e7 Rge6 Bf7 Qg2 e8N Qg1 Be7 Qg2 Nh2 f1N Bg6+ Ke3 Bf7 Nd2 Nf1+ Kf2 Bg6 Rf6 Bf7 Rde6 Nd6 Kg1 Nc4 Ne4 d6 Rf2 Nb2 Kh1 Bg6 Rd2 Be8 Ne2 Kf5 g4 Rg5 Nhf6 Bg1 Nh5 Bf6 Qh8 Kg6 Qf8 Re5 Qh6+ Kf7 Nd4 Be7 Qg6+ Kf8 Qgf3+ Bf7 Qfe3 Ke8 Qeh6 Kd8 Bf2 Rf5 g3 Be8 g2 Re5 Bg3
1b2Q1R1/q3R3/2Qqn3/pnR5/3p2bk/1BbPqQN1/2nrQR2/2Bq1rK1 w - - 0 1 illegal: No possible last move, all moves rejected
3B4/2Q3qB/Q1K2q1p/NRN1bn2/n2r1r2/b2pNk2/n2P1Nb1/BBb2q2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Ra3 g5 Rb3 gxh4 axb5 Bg7 b6 Bh6 b5 Bf8 Rb4 cxb4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 c4 d5 g4 a5 g5 h3 f3 b3 g6 h2 g7 h6 b7 a4 b6 e5+ Kb5 e3 c5 b2 c6 d4 c7 e2 Bh3 e1Q Bf5 d3 Bh7 a3 Qa4+ e4 Qa6 a2 Na3 a1B Nc4 b1N Ne3 Ne7 g8B Bb2 Ba2 Bh3 c8Q Nd7 b8N Bg2 b7 Nb6 Nc6 Qf1 b8N Nf5 Na5 Qf6 Nd7 Bfa3 Nc5 Na4 Nh3+ Kg3 f4 Kf3 Nf2 Rf8 Qcc6 Rad8 Qc7 Rd4 Rg1 Qg7 Kc6 Nbc3 Bb1 Na2 Rh1 Qd1 Re1 h1Q Re2 Qdf1 Re1 Ng3 f5 Qh4 f6 Nf5 f7 Qhf6+ Kb7 Rfd8 f8B R8d7 Rd1 Rf7 Be7 Rf8 Bd8 Rf7 Nc2 e3 Re1 e2 Ne3 Qe5 Rd1 e1B Kc6 Qef6+ Kb5 Bc3 Bb2 Rf8 Ba1 Bcb2 Rc1 Rf7 Rc3 Bc1 Rb3 Rf8 Nh3 Bg3 Nf2 Bd6 Kc6 Rf7 Qac8 Be5+ Qe6 Rfd7 Rb5 Rf4 Qed6 Qfg5 Qe6 Rdd4 Qec8 Q5e7 Qa6 Qef6+
3rr3/1qKQ1Rbp/2b4Q/nQn3qP/Nr5k/1rpnB3/Nb4Q1/N4BN1 w - - 0 1 legal: proof: f4 e5 c4 b5 b4 g5 a4 d5 axb5 dxc4 Ra4 g4 Ra3 exf4 Rf3 gxf3 Kf2 Ke7 g4 Kf6 e4 Kg5 h4+ Kg6 d4 c5 e5 a5 d5 f5 b6 c3 e6 c4 d6 c2 d7 c3 h5+ Kg5 b5 a4 e7 a3 e8Q a2 b7 a1B b6 Qe7 d8N Bg7 Be3 c1N Qf8 Nd7 b8N Nc5 b7 Bb2 Nbc6 Bd7 Nb4 Bc6 b8Q Qb7 Na3 Ne7 Nac2 Ra3 Qd3 Rb3 Na2 Rg8 Rh3 Rh8 Rg3 Kh4 g5 Rb4 Qf6 Re8 Qh6 Rb3 g6 Rb4 Ke1 f2+ Kd1 f3 Qd7 f4 Na1 N1d3 Kc2 Rb3 Ne6 Rb4 Rg5 Rb3 Rf5 Rb4 Bh3 f1R Rf7 Rd1 Bf1 f2 Qe5 f3 Qb8 Bf6 g7 Rb3 g8Q Bg7 Nf4 Rb1 Nd5 Rd8 Nb6 Re1 Be2 f1R Na4 f2 Qe5 Rb1 Qb8 Rfe1 Bf1 Qa6 Qb5 Qb7 Bh3 f1Q Bg2 Qf5 Bf1 Bd4 Qg2 Qg5 Qa6 Rb6 Qa5 Bg7 Qb5 Na6 Kb3 Nac5+ Kc4 Re2 Qa5 Rb3 Qa6 Bf3 Qab5 Nc6 Bd2 Ree8 Bc1 Bg4 Be3 Bf5 Kd5 Be4+ Kd6 Na5 Qd2 Bc6 Qg2 Re1 Bd2 R1e4 Be3 Qa6 Kc7 Reb4 Bd4 Qa8 Be3 Qb7+
1N1N3Q/3bkb1Q/3b1rrr/1q1pB1qB/5n1p/2r2n1n/2KP3Q/BB1RQ3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ra3 exf4 Rb3 c5 axb5 Ba6 b6 Bb7 b5 Bc8 Rb4 cxb4 c4 d5 g4 f5 e4 a5 b7 h5 c5 b3 e5 f3 e6 b2 c6 a4 e7 a3 g5 a2 g6 a1R c7 f2+ Ke2 f4 Kd3 h3 b6 h2 g7 f3 Nh3 h4 Kc2 Nf6 g8Q Nc6 b8Q R1a3 b7 Nh5 Bd3 f1Q Ng5 f2 Qe1 Bd7 c8Q R8a6 Qh7 Nf4 Ne6 Ne5 Nc3 Nf3 Na4 Rc6+ Nac5 b1B+ Kb2 Qe2 Na6 f1R Qd6 Rcc3 Nb8 Ra6 Rg1 h1N Be4 Nh3 Qh2 N1f2 Rh1 Bc2 Rg1 Bca4 Bb1 Nf4 Rh1 N2h3 Rg1 Rb3+ Kc2 Qb5 Bb2 Rg8 Bf6 Rg6 Ba1 Rh6 Rh1 Rg1 Qc3 Rgg6 Qch8 Rb6 Bg7 Kf7 e8B+ Ke7 Bf7 Be8 Ba1 Rf6 Bh5+ Bf7 Nd7 Rfg6 b8B Ra6 Bbe5 Rd6 Nec5 Rdf6 Nb8 Re3+ Kc1 Rb3 Ne6 Rc3+ Bc2 Qdb6 Nd8 Qg1 Kd1 Qg5 Rf1 Qb6 Rh1 Bd7 Bb1 Qb5 Rg1 Rb3 Kc2 Rd3 Qef2 Ra3 Rd1 Re3 Qe1 Ra3 Kc1 Rc3+ Bc2 Ke8 Q8g8 Ra3 Bb1 Rb3 Qgg7 Bd6 Kc2 Ke7 Qgh8 Rc3+
Q3RQ2/8/1kp2p1r/nr1R3b/qr4Q1/3RnP1r/brQ1NK2/BB1Rbb2 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 Na3 d6 Nc2 d5 axb5 dxc4 d5 Qf6 Nd4 exd4 Bd2 Qd6 Bc1 Qd8 e4 Kd7 b4 h5 g4 a5 b6 d3 g5 h3 b5 h4 d6 d2+ Ke2 a4 b7 f6 g6 h2 b6 Kc6 e5 h3 g7 a3 d7 c3 e6 c2 e7 a2 e8R Ra5 Re3 Nh6 g8Q Nf5 Re4 Ne3 Qh7 Bb4 Nf3 Rb5 Ng5 Qe8 d8Q Be6 Bb2 c1R Re5 Rc4 Qhc2 Rh6 Nf3 Ba5 Rb1 a1R Rd5 Ra2 Ba1 Rab2 Ng1 Bc3 Kf3 Rcb4 Bd3 Qd7 Qe2 d1B Qf8 Qe8 Bf5 Qd7 Rd3 Ba2 Kg3 Qe8 Qg4 Be2 Re1 Bf1 Ne2 Qd7 Rg1 h1R Red1 h2 Kf3 Qd4 Rg3 Qc4 Rd5 Be1 Bg6 Nd7 b8Q Nc5 b7 Kb6 Bh7 c6 Qa8 Nb3 Bf5 Na5 b8R+ Kc7 Re8 Kb6 Qc3 Qb3 Bb1 Qa4 Qc2 Rg1 Qf7 Rg2 Rh3 h1B Qf8 R2b3 Rhh5 Rb2 R5d3 Rh2+ Kg3 Be4 Rhd5 Bg6 Kf3 Bh5 Kg3 Bd2 f3 Rh3+ Kf2 Be1+
2n5/1n2pQB1/2b2r2/2Qq4/BNbrPn2/kbBRQ2p/BbQ1r3/2Rr3K w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 g5 Nc3 gxh4 Nd5 f4 Ne3 fxe3 g4 h5 f4 a5 b4 d5 c4 Kd7 g5 Kd6 b6 d3 g6 a4 g7 e2 Kf2 e1R Kg2 d2 b5 Kc5 b7 Kb4 c5 d4 f5 a3 c6 d3 f6 a2 b6 Be6 c7 Ra4 c8Q Nd7 b8Q Rh6 f7 Ngf6 g8B Bg7 f8Q Nd5 b7 N7b6 Qd7 Nc8 Bf7 Bb2 Qb5+ Ka3 Be8 Rd4 Qf7 Rf6 Nf3 Nf4+ Kh2 Bd5 Ne5 Qa5 Qe2 d1B Qc7 d2 Nc6 Ba4 Nb4 d1B Bd2 Qa8 Rb1 a1N Rc1 Nb3 Qe3 Bc2 Bd3 Na5 Bc4+ Bd3 Ba2 Bab3 Qc3 B3c4 Qc2 Re2+ Kg1 h3 Bc3 h4 Qc5 h2+ Kf1 h3 b8B Ra6 Ba4 Qc6 Be5 Nb7 Bg7 Rb6 Rg1 h1R Rd1 Qd7 Rd2 Rf6 Rd3 Rhh2 Rh1 Bc6 Kg1 Rd2 Bb1 Rhe2 Ba2 Ng2 Kh2 Qd5 Rc1 Nf4+ Kh1 Rd1+
1N6/3qb3/q1B1Npb1/pQb1k2n/r5n1/PQr1q1q1/bQR2B1N/2K2Q1N w - - 0 1 legal: proof: e4 g5 g4 c5 f4 d5 b4 dxe4 bxc5 h6 a3 gxf4 g5 h5 Ra2 Qd7 Rb2 Na6 Rb3 Nb8 Rg3 Qd8 Rg4 hxg4 c4 Kd7 h4 Ke6 d4 a5 Kd2 b5 c6 b4 g6 g3 d5+ Kf6 g7 e5 h5 f3 c5 f2 h6 b3 h7 g2 c7 b2 d6 Nc6 d7 Ra7 Bb5 f1Q Ne2 g1B Ng3 Be7 Rh2 e3+ Kc2 e4 Nd2 e2 Nf3 e1Q Nh1 Ba6 c8N e3 Nb6 e2 Be3 b1B+ Kc1 Ba2 Bf2 Ne5 c6 Ng4 c7 Qc8 d8N Qd7 c8Q Rc7+ Bc6 Bd3 Qb8 Bg6 Rg2 Kf5 Qb7 N8f6 g8Q Nh5 Nh2 Ke5 Ne6 Rc8 Qe8 Rg8 h8Q+ f6 Qh6 Rh8 Qd2 Rh6 Qd3 Qc3+ Qc2 Qg3 Qb3 e1Q Qb8+ Rc7 Qb7 Qe4 Qbb8 Qa6 Qf1 Qdc8 Qd7 Qee3+ Qd2 Rh8 Qb7 Rd8 Qb8 Rd4 Nd7+ Kf5 Q8b6 Ra4 Nb8 Ke5 Qb7 Qd7 Q7b4 Qeb6 Qdb2+ Qbd4 Be3 Qc3+ Rc2 Rc8 Bf2 Qcd4 Bb7 Rc3 Bc6 Q4a7 Be1 Bgc5 Bf2 Qad3 Q4c4 Qa6 Qcb5 Qde3+
BKn5/1r2Nr2/1n1QbpR1/1p3b1Q/1N1BNn1r/5Pq1/1pNB1b2/2qB1k2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h3 axb4 h4 gxh4 a4 e5 d4 Ra6 d6 Bh6 d5 Bf8 Ra3 Ra5 Rd3 Ra8 Rd4 exd4 Kd2 Kd7 Kd3 h5 Kc4 c5 Kb5 c4 e4 c3 g4 h3 a5 h4 f3 b3 e5 b2 a6 c2 g5 h2 g6 h3 a7 f6 g7 d3 Kc5 b5 Bd2 c1Q+ Nc3 Rh7 Be2 Ne7 g8N Rf7 Bg5 Qe8 Kb6 d2 Ne4 Bh6 Bf4 Bg5 Be3 Bh4 Bd4 Bf2 e6+ Kd8 Qf1 d1B d7 Bb3 Qd1 Qf8 Qd3 Qg7 Bd1 Qg3 Ne2 Bc2 Rg1 h1N Qa3 h2 Qd6 Bb1 Nc5 Bf5 Ne4 Qg7 Rg6 Ng3 Bc2 h1R Bd1 Nec6 Ne7 Nh5 Be3 Qg8 Nd4 Nf4 Nc2 Rh4 Bd4 Qg7 Rh6 Qg3 Rg6 Na5 Na3 Nb7 Nc2 Nc6 Ka6 Rb8 a8B Ne5 Ka7 Nc4 Qa6 Kc7 d8N Qd2 Ndc6 Qc1 N6b4 Nb6 d6+ Kd8 d7 Kc7 Nec6 Nd6 e7 Be6 d8B+ Kd7 Qa3 Rb7+ Ka6 Bf5 Bc7 Ke6 e8Q+ Re7 Qh8 Rf7 Ne7 Bd7 Qh5 Bc8 Be3 Ke5 Bd2 Bd7 Bb8 Be6 Ba7 Ndc8 Ng5 Kd6 Qd3+ Kc5 Qd6+ Kc4 Ne4 Rg7 Ned5 Rbf7 Ne7 Rh7 Kb7 Rhg7 Nd5 Kd3 Kb8 Nc4 Bd4 N4b6 Na3 Rh7 Bb3 Ke2 Bd1+ Kf1 Nb4 Rh8 Nac2 Rd8 Kb7 Rd7+ Kb8 Rb7+
R1q4b/1n2K3/2NpbBN1/1n3k2/R2R2p1/Nb1P4/pR1Qrr1b/1qQb2N1 w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 hxg4 Kf2 exf4 Ke1 c6 b4 Qb6 Bg2 Qc7 b6 Ne7 b5 Qe5 b7 Qf6 b6 Ng8 Bd5 Qg5 Bc4 Qd8 Bb5 cxb5 Kf2 Ke7 h4 Ke6 e4 a5 c4 f5 h5 g5 c5 b4 c6 g3+ Kf3 g4+ Kg2 a4 h6 f3+ Kf1 g2+ Kf2 b3 Ke3 f4+ Kd4 f2 h7 f1B e5 b2 c7 d6 Qc2 f3 Qc4+ Kf5 Kd5 f2 e6 a3 e7 Nh6 e8R Nd7 b8Q Bg7 b7 Nc5 Re2 Re8 h8N Be6+ Kc6 Ra7 Ng6 Bh8 c8R Ra4 Qc3 Rf4 Qc7 Rf3 b8N Nb7 Re4 Be2 Rh2 f1B Rd4 Rf2 d3 Bd1 Qd2 Bfe2 Ra2 Bdb3 Ra1 Bed1 Ra2 Bg8 Ra1 Re6 Ra2 Qf8 Kd7 Ree2 Nc6 Bgd5 Ra8 Bdc4 Nce5 Qc8+ Ke7 Be6 Qcc3 Nf7 Nc6 Ng5 Qdc2 Nf3 Bg5 Nc5 Bf6 Nb7 Rda4 Nd4 Q3d2 Nb5 Rd4 Nc3 Qcc1 Nb5 Nc3 b1Q Rb2 Na7 Nb5 a2 Na3 Nb5 Raa4 Bg7 Rh7 Bh8 Rg7 Rf1 Rg8 Rff2 Nf3 g1B Re8 Bh2 Ng1 Qa8 Rc8 Qa7 Ra8 Qb8 R8a7 Qg8 Ra8 Qc8
1nBn1Q1Q/r1bQpq1b/1N1R1B2/1p1qN3/2n2B2/1r3pBn/3K1Pk1/3Q3q w - - 0 1 illegal: No possible last move
q2Qr3/B3p2k/q1Bn3q/3QP1R1/1K2N2q/Bn1p2QQ/1r1np3/1bb1RB2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 axb5 c5 h4 cxd4 e5 gxh4 Nd2 Kf7 Ne4 fxe4 Be2 Ke8 Bd3 Na6 Bf1 Nb8 Kd2 Kf7 b4 Kg6 g4 d5 c4 h5 f4 a5 g5 h3 f5+ Kh7 f6 h2 c5 a4 f7 d3 Kc3 a3 c6 h4 b6 h3 c7 a2 b5 e3 b7 d4+ Kb4 e2 b6 d2 Qc2+ Bf5 c8Q d1Q Qd7 Nf6 Qcc6 Ne4 Ba3 Nd2 Qcd5 Bb1 Nf3 d3 Rg1 Bh6 f8Q h1Q Qf4 h2 Qg3 Re8 Qdh3 Nd7 b8B Nf6 b7 Nfe4 Ba7 Nd6 b8Q Qc1 Qc7 Qc8 Qd8 Qa6 Rg2 Rc8 Rg1 Rc2 g6+ Kh8 g7+ Kh7 Bb6 Qg2 Ba7 h1Q g8B+ Kh8 Qhg4 Qh4 Ng5 Qf3 Ne4 Rb2+ Qb3 Be3 Bd5 Kh7 Q4h3 Qh1 Rg2 Qcc6 Rg1 Qa8 Bc6 Qh6 Qhd7 Q1h4 Qdh3 Bc2 Rb1 a1N Re1 Bb1 Rg2 Rc2 Qd5 Nab3 Qf3 Rb2 Rg5 N2c4 Qfg2 Bc1 Qgg3 Ncd2
3QqQ2/1Q1q2q1/1pnBp1n1/1brN3B/p3r3/3qP1RR/1K2BB1n/5Qbk w - - 0 1 illegal: No proof kernel
4b1bR/3rp2r/n2Qp1Qb/R1q1N1R1/B1NNR1qb/3N4/2npP3/K2r3k w - - 0 1 illegal: No possible last move
2R5/r1p1kb2/rp1q1N2/6NK/2br1R1Q/NNP1n2Q/pB1r2n1/b1Q2q1Q w - - 0 1 illegal: No proof kernel
2R1RB2/nk4rp/1Nqpb1p1/5r1R/b2R2PQ/KQ1q4/3bN1p1/Nn1N1n2 w - - 0 1 illegal: No proof kernel
4q2K/n1bq1qQb/1B2p3/p7/1QnBP2Q/1p2pBR1/nrk3rQ/B2N2N1 w - - 0 1 illegal: No proof kernel
NQ1q1Bq1/2pp4/nRn1bbBn/p3p3/1qBk2r1/QB4r1/N3P2N/N5K1 w - - 0 1 illegal: No possible last move, all moves rejected
2q1Q3/BB4nK/pr2RrnN/1R2bnB1/B2kb2p/p2p4/3n1b1P/1QQ2Q2 w - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 f5 Nc3 fxg4 cxd5 Nf6 d6 Ng8 d5 e6 Nb5 e5 Nd4 exd4 Kd2 Kd7 Kd3 g5 Ke4 c5 Kf5 h5 Kg6 a3 f4 d3 b4 h4 e4 c4 e5 a6 f5 g3 f6 g2 b5 g4 f7 g3 b6 c3 b7 c2 Ne2 g1N Be3 c1B Rb1 g2 Ba7 Nh3 Ng3 g1N Rb5 Bb2 Bg2 Nc6 b8Q Bb7 Nf5 Qc8 Nh6 Nf6 Qc1 Nf3 Re1 Nh5 Bh1 Be7 f8Q Nd2 Qf1 Rf8 Kh7 N3f4 Be4 Ng7 e6+ Ke8 Re3 Rf6 d7+ Kd8 Re2 Bc5 Re1 Ke7 d8B+ Ke8 e7 Kd7 d6 Ke6 e8B Ke5 d7+ Kd4 Bd5 Ne7 Re6 Nef5 Be7 Ba1 d8Q Ng6 Bd7 Bb2 Qe8 Bb6 Bf3 Be4 Bc6 Bc5 Bb7 Ba1 Bd1 Bc3 Ba4 Bb6 Qc7 Rb8 Qb1 Ba1 Qcc1 Bc5 Bd5 Rb6 Bd8 Ke3 Bb7 Be5 Be7 Kd4 Bd8 Bcd6 Be7 Bg3 Bd8 Bde5 Be7 Bf2 Bd8 Rf8 Bg5 Rf6
Rrn1k2K/5R1B/1Qp4n/nn1R2Bp/bp1B1R2/Q1p4q/1P4Nb/1rB2r2 w - - 0 1 illegal: No proof kernel
2r3q1/BN1pb1Np/R1NNpb1k/4n1n1/r1rp4/6Qb/QR2r1RP/R5K1 w - - 0 1 legal: proof: e4 b5 d4 f5 f4 c5 a4 cxd4 axb5 g6 Be2 Bb7 Bg4 fxe4 f5 Ba6 f6 Bc8 Bf5 gxf5 Kf2 Kf7 g4 Kg6 c4 a5 b4 f4 f7 a4 b6 a3 c5 a2 b7 f3 c6 Ra6 g5 Nh6 b5 Ra8 c7 Nf5 b6 Ra7 Nd2 Ne3 Qa4 Qe8 Nb3 Nc6 b8Q Nc4 b7 Nd8 Nc5 Ne6 Ba3 e3+ Kf1 f2 Nf3 Kg7 g6 Ng5 Ne5 Kh6 Nc6 Ne5 g7 e2+ Kg2 e1R g8R Bg7 f8N f1R Nfe6 Bf6 Ng7 e6 Qc2 Rf5 Qf2 Re4 Kg1 Ra4 Qa7 Qf8 b8R Re2 Rb2 Ba6 c8N Rf3 Qg2 Rc3 Qg3 Rcc4 Nd6 Qf7 Ra8 Rc8 Ncb7 Qg8 Bc5 Bb5 Qa5 Ba6 Ba7 Bb5 Rf1 a1B Rf2 Ba6 Rg2 Bb5 Rc2 Bc3 Rb2 Bb4 Qa6 Rc3 Qa5 Bd3 Qd5 Bf5 Qa2 Bh3 Bc5 Re4 Ra6 Rc4 Ba7 Re3 Kf2 Re4 Ra1 Re2+ Kg1 Bc5 Nb5 Bf8 N5d6 B8e7
R1r5/R2r1q2/1K1n2N1/6qR/nNr3n1/BP2N2R/p2B1b2/nk1N1Rr1 w - - 0 1 legal: proof: f4 b5 a4 d5 c4 h5 cxd5 g5 g4 gxf4 g5 e5 Bh3 a5 axb5 Ba6 Bg4 hxg4 Qa4 f3 Qf4 exf4 bxa6 Rh7 Kf2 Rh4 Ke1 Rh8 Kf2 Ke7 h4 Kd6 e4 Ke5 g6 Kd4 h5 Kd3 e5 Kc2 d4 f5 h6 c5 b3 a4 a7 c4 g7 c3 e6 a3 e7 a2 e8N Ne7 g8R Nd7 d6 Nb6 d5 Rc8 a8R Na4 d7 Rh7 d6 Qa5 d8N g3+ Kf1 f2 Ke2 f1N d7 g2 Ng7 Rc4 Rh3 Ne3 Bd2 Ng4 Ra7 Nc8 Nf3 g1R Nh4 Bc5 Nc6 Nd6 d8B Bf2 Nb4+ Kb2 Kd3 c2 Bb6 c1R Bc5 f3 Rga8 f4 Ngf5 Rd7 h7 Qd8 h8R Qg5 Nc3 Rc2 Re1 Rc1 Nd1+ Kb1 Bce3 Rc8 Kd4 R1c4+ Kd5 Bg3 Rh7 f2 Bc1 f1Q Ng6 f3 Bed2 f2 R7h6 Qe2 Rh8 f1N Ba3 Bf2 R8h7 Qee7 R7h5 Ng3 Rf1 Ne2 Rd3 Nd4 Rdh3 Qh6 Nfe3 Nc2 Rb7 Na1 Rc7 Nc5 Kc6 Qhg5 Kb6 Qf7 Rca7 Na4+
b2N1BN1/2N4P/1K4n1/2nBB3/qk3bBN/rq6/b2Rnn1b/2N1Rnn1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 Na3 h5 Nb1 a5 Qd3 Ra6 Qf5 Rf6 Qg5 Rf5 gxf5 Qe7 Qh4 Qd8 Qg4 hxg4 Kd2 Ke7 Kd3 Kd6 Kc4 g5 b4 g3 h4 f2 e4 f3 b6 g2 Kb5 a4 c4 a3 h5 d3 b7 d2 f6 d1B f7 a2 h6 g4 h7 g3 Nd2 Qf6 Ne2 g1B Rh2 g2 Kb6 Qc3 b5 Na6 b8N Ne7 Nc6 Ng6 Ne7 Qb3 Bb2 Bh6 f8B Nc5 Nc1 Bb7 Bd4 Ba8 Ng8+ Ne7 Bd3 f1N Bc3 f2 Nf3 Bd2 Nh4 Bf4 Bc2 Ng3 e5+ Ke6 Be4 f1N Rb1 a1Q Bf3 d6 Bd5+ Kd7 Bb2 Qaa4 Ba1 Ne2 e6+ Kd8 Bag7 Ng6 e7+ Kd7 e8N Bc2 Ra1 Bb1 Nc7 Ba2 Bc3 Bf2 Bf6 g1N Be5 B2g3 Rg2 Bh2 Rb1 Nc3 Rd2 Nce2 Be4 Nd3 c5 d5 Bh1 d4 c6+ Kc8 Bd5 Nc5 Nd3 Kb8 Re1 Kc8 Nc1 d3 Na6 Kd8 c7+ Kd7 c8B+ Ke8 Rb2 d2 Bg4 d1N Rd2 Kd8 Ka7 Nf2 b6 Ke8 b7 Kd8 b8N Ke8 Bh5 Kd8 Nc6+ Kd7 Nge7 Rg8 Nd8 Rg7 Bhf3 Rf7 Bg4+ Rf5 Bf6 Kd6 Bb2 Re5 Bd4 Re3 Bdg7 Qbc4 Kb6 Ra3 Nc7 Na6 Ka7 Kc5 Be5 Kb4 Ng8+ Nc5+ Kb6 Qcb3
2q1bn1r/1N2q1Nb/1R5r/7R/5BB1/B3n1b1/r1N2P1p/KBbn1NkN w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f5 Qb3 fxe4 axb5 Bh6 b6 Bg7 b5 Bf8 Qb4 axb4 Kd1 Kd7 Kc2 Kd6 Kb2 Ke5 g4 Kf4 d4+ e3 b7 e5 g5 h5 b6 c5 d6 b3 d5 h3 d7 h2 d6 h4 g6 h3 g7 e4 Be2 c4 Ra3 c3+ Ka1 b2+ Ka2 c2 Ra4 Nh6 g8B Ng4 Nd2 b1B+ Kb2 Bg7+ Rd4 Ra2+ Kc3 Be5 Bh7 Rb2 Nf1 Qg8 d8N Nd7 b8N Nf8 b7 Bd7 Na6 Be8 b8B Qe6 Nc5 Qc8 d7 Bd6 Rd2 Bc7 Bf3 e2 Nc6 e1Q d8N e3 Ndb7 e2 Nd4 Ne3 Bg4 Be5 Bd7 Bc7 Nce6+ Kg4 Be4 Bg3+ Bc7 Rh6 Ng7+ Kh4 Bg4 Nd1+ Kc4 Rh8 Rd3 Rh6 Rb3 Rh8 Bf4 c1B Nc2 Qb4+ Kd3 Qe7 Rb6 e1N+ Kd4 Rh6 Bcd6 Ng2 Ne2 Nge3 Bef5 Ba2 Ba3 Bg8 Rg1 h1R Be4 Bh2 Neg3 Bh7 Rg2 Rg1 Nh1 Bg3 Na1 h2 Bb1 Nd7 Nc2 Nf8 Bf3 Kh3 Be2 Bh4 Rg5 Bg3 Bg4+ Kg2 Ra5 Rb3 Rh5 Rb2 Nd2 Re1 Nf1 Kg1 Rh3 Qed8+ Bad6 Nc4 Kd5 Bf7+ Be6 Nd7 Rh5 Bfg6 Bh3 Re8 Bg4 Rh8 Be7 Be8 Ba3 Qe7 Kd4 Ra2 Ne1 Nf8 Nc2 Ndb2 Kc3 Ne3+ Kb3 Nbd1 Bb4 Ra4 Bc5 Rc4 Ka2 Rb4 Ka1 Rb2 Ba3 Ra2+
5N1r/3nNk2/R1p1b1R1/8/1qb2n1N/Rq2Br1N/1PN4q/BKqr1Rb1 w - - 0 1 illegal: Other
4bbR1/Bk3PR1/1N6/1b1p1Kn1/2R2BbR/nB2N2n/r1rRB1b1/n4q2 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 Qd2 cxd4 axb5 Nc6 b6 Nb8 b5 Ra7 Qc3 Ra8 Qb4 axb4 Ke2 h5 Kf3 e5 Ke4 d3 c4 d2 g4 d1N f4 b3 b7 b2 g5 h3 c5 h4 f6 h2 f5 h3 g6 Ra2 g7 Nh6 g8R Nc6 b8R Na7 b6 Nb5 b7 Nf7 c6 Na3 Nc3 b1B+ Bd3 d6 c7 Kd7 Nf3 Kc6 Nh4 Rh5 Rhg1 h1B+ Ng2 h2 Nd5 Rh8 Nb6 Nf2+ Ke3 e4 Kf4 e3 Be2 Bd7 c8B Ng5 f7 Bd3 f6 Be8 Be6 Bb5 Kf5 Nfh3 Bb3 d5 Rc8+ Qc7 b8B Kb7 Ba7 Qc4 Bd2 Qc1 Rc4 Qf1+ Nf4 Rh6 Rd1 Bf3 Ng2 h1B Bc1 Rh4 Rd2 Re4 Rg7 Re6 Rh7 Rc6 Rhh4 Rc7 Ra4 Rcc2 Rac4 Bc5 f8R Bg4+ Ke5 Bb4 f7 Bc5 Rg8 Bf8 Bd3 e2 Ne3 e1N Be2 Rcb2 Rg7 Nec2 Rg3 Bg2 Rg8 B4f3 Kf5 Na1 Rgg4 Rc2 Rg3 Ne4 R3g7 Neg5 Bb2 Bbc6 Be5 Bb5 Bf4 Bg4+
1NbrR3/q6N/q2k3q/npNb1n2/2r1B3/3P4/B1RB1BNq/1KnnB3 w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qb3 f3 Qc2 Qf6 Qd1 Qd8 Nh3 f5 Qc2 h5 Kd1 f2 Ng1 f4 Qb2 f3 Qd4 Bd6 Qg4 Bf4 gxf4 hxg4 Kc2 Kd7 e4 c5 h4 b5 a4 g5 f5 g3 a5 g2 h5 g4 h6 g3 a6 c4 a7 c3 h7 Qe8 d6 Ba6 e5 Qf8 e6+ Kc6 f6 Bb7 d7 Ba6 d8B Qd6 f7 Qf8 e7 Qh6 f8N Bc8 e8N Ne7 Ra2 Nf5 Ne2 g1Q Bh4 g2 Nd7 Qh2 Nf4 g1Q Bc4 f1B Bf2 Bg2 Nef6 Kd6 d3 Nc6 Bd2 Na5 Nb8 Rd8 Bfe1 f2 h8B f1Q Nh7 Qf3 Bd4 Qb7 Bdf2 Bd5 Ng2 b3+ Kc1 c2 Nc3 Qc6 Na4 Qa6 Kb2 c1N Kb1 b2 Nc5 Qg3 Rh4 Q1h2 Rd4 Qgg7 Re4 Qd7 Re8 Qe7 Kc2 b1N Rb2 Nc3 Ba2 Nd1 Kb1 Qee3 Rc2 Qd4 Nc6 Rb8 a8B Rb6 Nb8 Rc6 Nb3 Rc4 Nc5 Qdg7 Bc6 Qga7 Bb7 Bf7 Be4 Bd5
1k1BR3/r1q3N1/n1r4r/3p1B1B/b2R1NBr/K2b3R/b2P3R/3Rb1br w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 b3 exf4 b4 f3 axb5 c5 Ra2 cxb4 Ra6 Ke7 Ra1 Ke8 c3 h5 Ra5 f4 Ra1 Nc6 Qc2 Nd4 Qf5 Rh7 Qg5 Nf5 gxf5 Rh8 Qg4 hxg4 Kd1 a5 Kc2 g5 Kb2 d5 h4 Kd7 e4 Kc7 h5 f2 e5 a4 h6 b3 h7 f3 e6 g3 c4 g4 f6 g2 e7 g3 e8B Qe7 c5 Kb8 b6 Qc7 b7 Be7 f7 Ra6 f8R Rh6 c6 Bh4 Ne2 g1R Nd4 g2 Rf4 Ne7 Be2 f1R Ne6 f2 Ka3 b2 Rd4 Bd7 Rh2 Rh1 Nc3 g1B Ng7 b1B Bb2 Ba2 B8h5 Rc1 Beg4 f1B Ne2 Be1 Nf4 Bd3 Bc3 Be8 Ba5 Rc5 Rd1 Bd7 Kb4 a3 Bf5 Ng8 Rh3 Nf6 Bb6 Ne8 Ka4 Qe5 Bd8 Nc7 Rh2 Na6 Bfg4 Re8 h8R Qc7 Bf5 Re4 Re8 Ka7 b8R Rc1 Rb2 Ka8 Rc2 Kb8 Rc3 Rc2 Ng6 Rh4 Nf4 Bb1 Bfg4 a2 Ka3 a1R+ Kb3 Ba2+ Ka3 B7f5 Rb3+ Bb5 Rbh3 Bfd3 Bf5 Ba4 Bfg4 Rb1 Bf5 Rb7 Bfg4 Ra7 Bf5 Qe5 c7+ Ka8 c8B Qc7 Bfg4 Kb8 Bcf5 Rcc6
N3q3/2r3p1/NPRn2R1/bB6/NR6/bR2BK1k/1rr4q/qqNb1b1R w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 h5 Qe1 f4 Qg3 Nc6 Ke1 Nce7 Qg2 Nf5 gxf5 Ke7 Qg5+ Ke8 Qg4 hxg4 Kf2 Ke7 c4 Kf6 b4 Kg5 e4 Kh4 b6 a5 c5 d5 b5 d3 c6 d4 e5 d2 e6 d1R b7 d3 b8N a4 b6 d2 h3 a3 e7 a2 e8R Ne7 c7 Ra7 f6 Nf5 f7 Ba6 c8R Nd6 Re4 Rc7 Ne2 Qe8 Rb4 Re1 Rg1 d1B Nbc3 Bd3 Rab1 a1B Na4 Bc3 R4b3 Ba5 Na6 Rh5 Be3 Rhc5 Rb4 Rc2 R1b3 Be7 f8N Bc4 Rh1 g3+ Kg1 f2+ Kg2 Bb5 Kf3 g2 Ne6 Rb2 Rg1 Rcc2 Rh1 g1Q Rc6 Qh2 Nec7 Bc4 Na8 Bd3 Bg2 Rg1 Bf1 Rg5 Rcc3 Rc5 Rg1 Rc7 Rc6 Nf5 Rgg6 Bd6 Rbc4 Ba3 Rcb4 Nd6 Rh6+ Kg5 h4+ Kf5 h5 Kg5 Bh3 Kh4 Bd7 Bc4 Re6 Kh3 h6 Bb5 h7 f1Q+ Bf2 Qfg1 Be3 Qgg6 h8R+ Qh7 Rc5 Bc4 Bb5 Bd3 Rg6 Bc4 Rg2 Bd3 Kf2 f3 Rc6 Bc4 Bd2 Bd3 Nc1 B3e2 Be3 Bd3+ Ke1 Bf1 Rg6 Qg1 Be2 Bg2+ Bf1 Kh2 Na2 Be2 Rf8 Kh3 Re6 Qh2 Kf2 Qf5 Bh6 Qh7 Ke3 f2 Rff4 Bg4 Bb5 f1Q Bg5 Qa1 Rf1 Bd1 Nc1 Qf5 Rh1 Bf1 Bf4 Re2+ Kf3 Qfg6 Be3 Qgb1 Rg6 Rec2+
4qR2/qRnbrqRK/1Bq1n2N/2B2p2/1R4N1/2nNPpr1/4R3/3Nbk2 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 b5 axb5 f3 Qa4 h6 Qf4 gxf4 g5 h5 Bh3 Bg7 Be6 Bf8 Bg4 hxg4 Kf2 Kd7 d4 Kd6 h4 a5 b4 f5 g6 c5 g7 c4 b6 a4 e3 a3 b7 a2 h5 c3 h6 c2 h7 Qg5 b5 Qd8 b6 Na6 b8R Nf6 g8N Ne8 b7 Nc5 Nc3 Qd7 Nh6 Qc7 Rh2 Ng7 Nge2 Qf7 Nd1 Ra7 Ba3 Ne6 Nc1 Bd7 Nd3 Rg8 h8N c1Q Ng6 Nc7 Nge5 Qc4 Rb1 a1Q Rb4 N5e6 Rg2 Be7 Rf8 Qc6 b8R Bh4+ Rg3 Qe8 R8b7 Rg5 Kg1 f2+ Kh2 f1Q Rg2 g3+ Kh3 f3 Neg4 Qg1 Re2 g2 Rg8 Be1 Rg7 Bc3 Kh4 Rg6 Kh5 Be1 Ng8 Rg5+ Kh6 Qf2 Kh7 g1N N8h6 Qh2 Nge5 Rg3 Ng4 Qhh5 Nf4 Qhf7 Nd3 Ke7 d6+ Kd8 Ra2 Ne2 d5 Nc3 Re2 Kc8 Rbb2 Qa2 Bc5 Qaa6 R7b4 Qab6 R2b3 Kb7 Rbb2 Ka6 Rb1 Bc8 d7 Rb7 d8R Qa7 d6 Bd7 Rb5 Qee7 Rf8 Qee8 R5b3 Ka5 Nb4 Kb5 Nd3+ Kc4 R3b2 Rb5 Rb3 Ra5 Rb7 Rb5 Bb4 Re5 Bc5 Bc8 d7 Re4 d8B Bd7 Bde7 Re5 Bb6 Re4 Nf4 Re5 Bec5 Re4 Nh3 Kd3 Rb4 Re5 Rg2 Re4 Nhf2+ Ke2 Nd3+ Kf1 Rh2 Nf4 Ra2 Re7 Re2 Nfe6
Nk3q1N/rq2B2n/n1Pbpb1b/2BB3p/N2R4/N5K1/4r3/1Brb1B1R w - - 0 1 legal: proof: c4 c5 a4 f5 e4 fxe4 h4 b5 axb5 g6 Qb3 g5 d4 cxd4 Qc3 dxc3 hxg5 Qa5 Rh5 Qb6 Rh1 Qd8 g4 a5 b4 d5 f4 Kd7 Kf2 Kc7 c5 h5 c6 a4 f5 d4 b6+ Kd6 f6 a3 f7 c2 b7 Kc7 b5 e3+ Kg3 a2 b6+ Kd6 g6 d3 g5 e2 g7 e1R g6 d2 Ba3+ Ke6 Ne2 d1Q Nec3 c1B Bc5 Ke5 Na4 Nf6 g8B Nh7 g7 Na6 b8N Bh6 b7 Q1d7 Na3 Ra7 Rd1 a1B Rd2 Q7c7 Nd7+ Ke6+ Ne5 Rc1 b8N Qb7 Ng6 Bf6 Nd7 Qe8 Ndb6 Bd7 Bd4 Kd6 Bc5+ Kc7 Na8+ Kb8 Rd3 Bg4 Rd4 Ng5 Bh7 Bd1 g8B Qec8 Ne5 Qd8 Be4 e6 Bgh7 Rg8 Bd5 Bd6 f8B Qe8 Be7 Qf8 Bb1 Nh7+ Kh3 Rg6 Nf7 Rg5 Nh8 Re5 Kg3 Re2+
6RB/k3Np1N/b4NK1/q3PR2/2n4b/prb1Nnb1/n4Rb1/q1R3NB w - - 0 1 illegal: Other
2n1b1n1/PNN3r1/3qR2B/2Br3p/1N5B/R1n2pKB/BN1n4/2kqrq2 w - - 0 1 illegal: No possible last move, all moves rejected
1NN3nB/1R6/2prB1q1/1P2qNbk/Bnp5/B4q1B/n1r1n2R/1N2Kq2 w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 a4 gxf4 h3 b5 axb5 e5 g5 Bg4 Qb3 e4 Qf3 exf3 hxg4 Qd7 Ra4 Qe7 Ra1 Qd8 e4 h5 d4 a5 b4 f5 g6 f2+ Kd1 h4 d5 h3 g5 h2 d6 a4 e5 c6 b6 f3 g7 Kf7 b5 Kg6 d7 a3 e6 a2 e7 f4 e8N Kh5 g6 Rh6 b7 Qe7 d8N Qe5 Ne2 Na6 b8B Nb4 Nf7 Be7 Ba3 Bg5 Bh3 f1N Ke1 Ng3 Nfd6 Ra5 Nc7 f2+ Kd1 f1N Nd4 f3 N4f5 f2 Nc8 Nd2 Na6 Nb3 Bc7 Ra4 Nb8 Nc1 Bb6 Nge2 Bd4 Nf4 Kd2 f1Q Bdb2 Qf6 Bd4 Qg2+ Ke1 Nfe2 Be5 Ne7 g8B Qg7 Bh7 Ng8 Bd4 Qe5 g7 Rd6 Bdb2 Ra7 Bd4 Rad7 Bc3 Rd2 Bd4 Rc2 Bdb2 Rd6 Bd4 Nh6 g8B Qe6 Bf7+ Qg6 Bh8 Ng8 Be6 Qf3 Rf1 h1Q Rg1 Qhg2 Rh1 Nc3 Rh2 N1e2 Nd2 Qf7 Rd1 a1Q Nb1 Nca2 Rd2 Rd8 Rd7 Qe5 Rb7 Rd6 Nfe7 Rcd2 Bc2 Qg6 Ba4 Rc2 Nf5 Qgf1+
Rn3q2/2pB1k2/2b2rpb/BN2rn1B/1R1p1RB1/6r1/P1n1b3/RK2R2N w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 a5 b4 axb4 gxh5 d6 c4 Bg4 c5 Bc8 d4 dxc5 d5 Bd6 Qd2 Bf8 Qd4 cxd4 Kd1 b5 Kc2 f5 e4 f4 h4 f3 d6 f2 e6 Ra3 h6 Rb3 h7 Rg3 e7 Bb7 h5 Na6 d7+ Kf7 e8B+ Kf6 e5+ Ke6 h6 Rg4 Ne2 Bd5 Bd2 Bc6 Bh5 g6 Na3 b3+ Kb1 b4 Nb5 b2 Bh3 f1B Ng3 Be2 Re1 Kf7 Nh1 Rg3 B3g4 Ne7 Bc3 Qb8 d8R Nf5 Bd2 Rg8 h8R Qc8 h7 Bh6 Rd6 Rf8 Re6 Nb8 Rf6+ Ke8 e6 Qd8 Kc2 b1N e7 b3+ Kb2 Qc8 Ba5 Na3 Rf7 Nc2 Kb1 b2 Rg8 Nd6 Rf4 Nf5 h8R Kf7 e8B+ Kf6 Bd7 Kf7 Bh3 Re8 B3g4 Re5 Re8 Qd8 Re6 Qf8 Rg8 Rc5 Re3 Re5 Rb3 Ne3 Bf3 Qe8 Bc3 Bc4 Bg2 Na6 Rg4 Nd6 Bf3 Qe7 Rd8 Qf8 Ra8 Nb8 Bb4 Rf5 Bd1 Rf6 Ba5 Ndf5 Rf4 Bf1 Bdg4 Be2 Na3 Ng2 Kc2 b1R Rb7 Rb5 Rb6 Re5 Kb1 Nge3 Rb4 Nc2 Nb5 Qg7 Bc8 Qh8 Bd7 Qf8
4B2N/1qN1rpNR/2Nnn1RB/2N5/3P1Brn/1K2B2p/p4pkq/bn6 w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 a4 gxf4 h3 b5 axb5 e5 g5 Bg4 Qb3 e4 Qf3 exf3 hxg4 Qd7 Ra4 Qe7 Ra1 Qd8 Kd1 Ke7 Kc2 Kd6 b4 Kd5 d3 a5 g6 h5 g7 c5 g5 a4 b6 h4 g6 a3 b7 c3 b5 a2 b6 c4 Be3 f2 Nd2 f3 Ne4 Ra7 Nc5 Qe7 Nh3 Nh6 g8N Bg7 Ng5 Nd7 b8B Nf8 b7 Ne6 Bbf4 Nf5 b8B Nd6 Rh3 Be5 g7 Qb7 Bg2 Ra4 Rg1 f1N Rhh1 Ng3 Bf1 Nc7 Nge6 f2 Bh6 Ngf5 Rg6 Bf6 Ne7+ Ke5 g8N h3 Rhg1 Nh4 Ng7 Ne6 Nc6+ Kd5 R1g5+ Be5 Rh5 Rb4 Kd1 c2+ Kd2 c1N Kc2 c3 Bc7 Rg4 d4 Nb3 Bb8 Nd2 Bc7 Nb1 Nge7+ Kc4 Bg2 Re8 Be4 Bf4 Bf5 Kb5 Kb3 c2 Bb8 c1Q Bc7 Ng5 Bd7 Qg1 Bb8 Qh2 Bc7 Rd8 Be8 Rd7 Bb8 Ne6 Bc7 Nc8 Bd6 Bg5 Bdf4 Rc7 Bc1 Nd6 e4 Kb6 e5 Rd7 Bce3 Kb5 Nef5 Bd8 Nfe7 Ba5 Rf6 Kb6 Ng6 Re7 Nh8 Bc3 Rg6 Kb5 Bhg5 Bb2 Rh7 Ba1 Bh6 Nf8 Kc2 Kc4 e6 Kd5 Rf6 Rd7 e7 Ne6 Rg6 Rc7 Nd3 Ke4 Nc5+ Kf3 Nb4 Qc8 Kb3 Kg2 Nc6 Ndf5 Bd7 Ra7 e8N Nd6 Nc7 Qa6 Be8 Qc8 Nd5 Re7 Nc7 Qb7+
3rBrN1/1n1n1B2/B3pB2/p1k4r/2pr2pr/1R2KNR1/r1PB2R1/b1R5 w - - 0 1 legal: proof: g4 g5 h4 b5 a4 bxa4 f4 e6 d4 Bc5 e4 Qf6 e5 Bf8 h5 Qg6 hxg6 Ke7 f5 Bb7 Qe2 Bf3 d5 exd5 e6 Kd6 e7 d4 Qe6+ fxe6 f6 Be4 Rh4 Kc6 Rh1 Bf5 gxf5 Kb7 Bd2 Kb6 Bc1 Kc6 Kd2 h5 e8B a5 b4 g4 f7 h4 f6 d3 g7 h3 Ra2 h2 Ra3 Ne7 g8B Nc8 Nc3 Nd6 Nd5 Bg7 f8B Rh5 f7 Kb5 Be7 c5 Rc3 a3 f8R a2 Nf6 a1R Bg6 Ra2 Ra3 Kc4 b5 Kb4 b6 c4 b7 Kb5 Bg2 Kc5 Bc6 Bh8 Bb5 Bg7 Ba6 Bh8 Ke3 d2 Ke2 d1R Rg3 Rdd5 Ke3 Rd2 Ne8 Ba1 Rf2 Rdd5 Bg5 Rf5 Nf3 Rf8 Rhg1 h1R Nf6 R1h4 Re1 Nf7 Rh2 d5 Rhg2 Nd6 Be8 Nd7 Bgf7 Rd8 b8R d4+ Kf4 d3 Ng8 d2 Rb3 d1R Bf6 Ne4 Ke3 Rd4 Bd2 Nd6 Rc1 Nb7
8/1nN2B1B/rR1N1N2/N1Kp2b1/N2P1rq1/2prb1qR/2pq1n2/k1BB3b w - - 0 1 legal: proof: e4 a5 b4 g5 h4 b5 c4 bxc4 b5 gxh4 Qa4 f5 Qb4 axb4 exf5 Ra3 Be2 Ra4 Bf1 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Kd5 h5 g4 c5 a4 h3 f4 c3 d3 e4 b6 c4 b7 h2 a5 c2 a6 e3 a7 b3 Na3 h4 Bd2 h3 Bc1 e2 Bg2 e1B Ne2 b2 Nc3 b1R Nab5 Bh4 Ra6+ Nc6 b8N Bg5 Rb6 Rb3 Bf3 Bb7 Na4 Nh6 Bd1 Bc5 Nd6 Be3 d4 Qc7 Rb4 Rf8 Rb6 Nd8+ Nc6 Rd3 Kc5 Qb8 Na5 c3 Ne8+ Kf7 f6 Bf3 Nd6+ Ke6 f7 Bg2 Kb4 Kd5 f5 Bf3 f6 Qc7 Rg1 h1Q Rg3 h2 Rh3 Qg2 Kb5 h1Q Kb4 Bh4 g5 Ng4 g6 Nf2 g7 Qhh2 g8B Bhg5 Bh7 Qg4 Kb5 Bh1 Kb4 Re8 f8N Re4 f7 Rf4 Ne6 Qhg3 Ne8 d6 f8N Qg7 Kb5 Qe2 Kb4 Qd2 Nd7 Qg6 N8g7 Qh5 Nf5 Qhg4 Kb5 Rc8 a8B+ Rc6 Rb7 Ra6 Nc7+ Ke4 Rb6+ d5 Kc5 Q4h4 Bh5 Qhg4 Bc6 Kf3 Nf6 Ke2 Nd6 Kd1 Bce8 Rf3 Bb2 Rf4 Ba1 Kc1 Bb2+ Kb1 Bc1+ Ka1 Bef7 Qc8 Bf3 Qcg4 Bd1 Nb7+
B1n2q2/p1k1N1B1/q6R/qbBK1p2/N2brp1r/3B1PN1/q3n2N/1RnB4 w - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Qd2 cxd4 Qg5 e5 Qf4 exf4 Kd2 h5 Kd3 f5 Kc4 h3 b4 d6 e4 Kd7 g4 d3 g5 h2 f3 h4 b6 d2 e5 d1Q b5 h3 g6 Bh6 b7 Qf6 g7 Qg6 e6+ Kd8 b6 Nf6 g8B Ng4 Ne2 Qd2 Ng3 Nf2 Bb2 Bd7 Bd3 Bb5+ Kd5 Bg7 c4 Qa5 c5 Bd4 c6 Nd7 b8B Rh4 b7 Qf7 Nd2 Qf8 Rhb1 h1Q Ndf1 Qg2 Nh2 Qf1 Ba3 Qe2 Bc5 Qea2+ Bc4 Nd3 c7+ Ke7 c8N+ Kd8 Nb6 Nc1 Na4 Qa6 Nhf1 h2 Bf7 h1Q Nh2 Qe1 Bb3 Qae2 Bd1 Qea5 Ra3 Qa2+ Rab3 Ne5 e7+ Kd7 Bc7 Nc6 b8N+ Kc8 e8B Ne7+ Ke6 d5+ Nc6 Kb7 Be5 Nc8 Bg7 Kc7 Rb4 Bc3 Rc4 d4 Kd5 d3 Ne7 d2 Bc6 Bd4 Bb7 Rb8 Ba8 Rb6 Be8 Re6 Bf7 Re4 Be8 Qa1 Rcb4 Qa2+ R4b3 Bf1 Bb5 Bd3 Bc4 Be2 Rb6 Bd3 Bc2 d1N Rh6 Bf1 B4b3 Bb5 Bd3 Ne2 Bdc4 Nb2 Bd1 Nd3 Rb3 Qa3 Rb1 Ndc1 Bd3 Qa2+
Rb1r2qR/1RBb2qp/1r3k1P/1RBB3n/1n1pK3/5pBp/1qR1N3/1r4N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 Qd3 Ba3 Qh3 Bf8 Qh4 gxh4 Kf2 Ke7 Kf3 a5 e4 f5 g4 d5 c4 h3 b4 d3 b6 d4 h6 d2 b5 d1R e5 a4 c5 a3 c6 a2 c7 Ra5 b7 Na6 b8B Re1 e6 Re5 g5 Rd5 g6 Rd7 b6 Bg7 b7 Rdd5 Bc4 Be5 g7 Rab5 Ba3+ Kf6 e7 Rb6 e8R Nb4 Nc3 Rdb5 Bd5 Bd7 Rb1 a1Q c8R Qb2 Nce2 Qe7 Rc2 Qd8 Kf2 f3 Bc7 f4 Rh2 Qe7 Ra8 Qf8 b8B Qe7 Ke1 f2+ Kd2 f1Q Rg2 f3 Rg5 Bh2 Bg3 Qg2 Bbc7 Nd3 Bc5 Nb4 Rba1 Qf8 R1a7 Qc8 Rb7 Qf8 Be1 Bd6 Bg3 Qe7 Bd8 Bb8 Bdc7 Qa1 Be1 Na6 Kd3 Rb1 Be4 Kf7 Bcb4 Nf6 g8R Qb2 Rb5 Nh5 Bc5 Kf6 Bd5 Qe6 Rd8 Qg7 Beg3 Qef7 Ke4 Nb4 Re8 Rf8 Re5 Rc8 Re8 Rd8 Rh8 Qfg8
r5N1/2p1pkbN/RBp1Nb2/1b5r/K2nqn2/N1rRP3/2p1r3/1B1BB1N1 w - - 0 1 illegal: No proof kernel
B6N/rbBKq3/4Rb2/pNNn1R1n/r1N2B1P/3R3R/1rq3b1/1r3k2 w - - 0 1 legal: proof: e4 h5 g4 hxg4 c4 e5 d4 f5 exf5 b5 b4 c5 d5 d6 a4 cxb4 axb5 Qd7 c5 Qd8 Qd4 exd4 cxd6 Rh7 Kd2 Rh4 Ke1 Rh8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 g5 f4 a5 f6 d3 b6 b3 b7 g3 f7 g4 f5 d2 f6 Ke3 Rh3 Kf2 Ne2 d1B Bg2 b2 Na3 b1Q Bf4 Be7 f8R Nc6 b8B Bb7 f7 Nf6 Nd4 Bf3 Nc4 Ra7 Bc7 Qc2 Nb5 Nh5 Re1 Bf6 d7 Nb4 d6 Nd5 Re6 Qe8 Bh1 g2 d8N g1R d7 g3 Kd6 Ra1 Bg2 Ra4 Bh1 Ba6 Nb7 g2 d8R g1R Nc5 Rb1 Rd7 Qb8 Rdd8 Bg2 Kd7 Bf1 Be4 Bg2 Bf3 Kf1 Be4 Ne7 Ba8 Rh7 Rh8 Rh6 f8N Bab7 Ng6 Nd5 Rhf8 Rb2 Nh8 Rg6 Nba3 Rg3 Rf7 Rgb3 Nb5 Rb1 Rff8 R3b2 Rf7 Bd4 Rf5 Bf6 Rg8 Qf8 Rgg3 Qd3 Rge3 Qc2 Rd3 Qe7+
qBN3k1/r1nN4/3qRr2/B2bRb2/3b3K/RP3r2/N2bB1B1/Nq1n1b2 w - - 0 1 legal: proof: c4 a5 f4 e5 h4 exf4 h5 d5 cxd5 a4 h6 a3 b3 gxh6 Qc2 h5 Qb2 axb2 a4 b5 axb5 h4 Kf2 f5 d4 Kf7 e4 h5 g4 c5 e5 c4 g5 c3 e6+ Kg7 b6 h3 d6 h2 e7 c2 e8R f3 Kg3 f2 d5 f4+ Kh4 f3 b7 Ra3 d7 Bd6 Nc3 b1Q Re5 Nf6 g6 Kg8 g7 Ra7 Bg2 f1R Na2 f2 Bf4 c1B Nf3 Rh6 Ne1 Bc5 d6 Bd2 Nc2 Na6 b8N Bd4 Bg3 Qf8 d8B Nc7 d7 Ne4 Rg1 h1Q+ Bh2 Rd1 Re1 f1B Re6 Nf2 R1e5 Nb5 Ba5 Rf6 d8N Nc7 Ndc6 Qd6 Nd7 Rc1 Na3 Rc3 Nc2 Nd1 Ne7+ Kh7 Bh3 Qa8 Bg2 Rcf3 g8B+ Kg7 Bh7 Kh8 Bd3 Kg7 Nc5 Bd7 Nc8 Kg8 Re7 Bg4 R7e6 Bf5 Bf4 Rf7 Nd7 Rf6 Kg5 h4 Be2 h3 Kh4 h2 Nab4 h1B Ra3 Qa2 Na1 Qc2 Na2 Qb1 Nc2 Nb5 Rc5 Qe7 Bb8 Qd6 Bh3 Rf2 Na1 Nc7 Rce5 Bd5 Bg2 Rf3
1Nq1R3/4b1B1/bkrn2R1/2NRKP2/pN1B4/q1br1B2/bq2rN1n/3R4 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 c4 fxe4 h4 d5 cxd5 g5 Qb3 gxh4 axb5 Bg4 b6 Bf5 b5 Bc8 Qb4 cxb4 Ke2 Kd7 Ke3 h5 Kf4 e5+ Kf5 a5 f4 h3 g4 a4 d4 h2 b7 Kc7+ Kg6 e3 d6+ Kb6 d7 e2 Kf5 e1B d5 e4 d6 h4 g5 b3 g6 e3 g7 h3 Be2 b2 Bf3 e2 Na3 b1Q+ Ke5 Nf6 g8R Ra6 f5 Be7 Bb2 Ne8 Nc2 Qc7 Bc3 Qb2 d8B Rh5 Rd1 Nc6+ Kf4 Rh7 b8N Ne5 d7 Nd6 Rd5 Ng4 Bg7 Bc3 Nb4 e1R Re8 Re2 Rd1 Ra5 N8a6 Rh6 Nc5 Ba6 Rd5 Rhe6 Bd4 R6e3 Rg8 Rd3 Rg6 Bf8 Bh4 Be7 d8R Qc8 Re8 Qa3 Bhf6 Qb2 Bg2 Qa3 Bg7 Qb2 Nf3 Qa3 Rg1 h1Q Nd2 h2 Bf3 Qg2 Nde4 h1B Rd1 Nh2 Ke5 Ree3 Rf8 Qgb2 Rg8 Re2 Re8 Red2 Nf2 Re2+ Nce4+ Kb7 b6 Rc5 Rd8 Rc6 Re8 Kb8 b7 Kc7 Kf4 Bg2 Nc5 Kb6 b8N Bh3 Re5 Bg4 Rd5 Bh5 Re6 Bf7 Rg6 Ne4 Ke5 Be6 Rd6 Ba2 Rd5 Nd6+
6B1/B1RRnp2/Rr3n2/rb4qR/2P5/Bnr1N2K/b1B1NNr1/q2qk3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Qd2 f3 Qf4 exf4 hxg5 Bb7 Be3 Ba6 Bc1 Bc8 Kf2 Ke7 b4 Ke6 e4 Ke5 b6 a5 b5 h5 c3 d5 b7 a4 g7 h4 b6 a3 g6 a2 Be2 d3 Bd1 h3 Bb3 d2 Rh2 d1Q Ba3 d4 Bb4 d3 Rh1 d2 Bc2 h2 Ne2 Ra5 Na3 Nf6 g8N Rh3 g7 Be6 Nh6 Nc6 b8R Ne7 g8B Qb1 b7 d1Q Rc8 Qbc1 Rb1 a1N Rc7 Ba2 b8B Nb3 Ba7 Qb2 Rc1 Qa1 Rd7 Rg3 Re1 h1R Nc4+ Ke6 e5 Rh2+ Kf1 f2 Ba3 Rhg2 Ng4 Rd3 Nce3 Rd6 Nf5 Kd5 e6 Kc4 Nfe3+ Kb5 Rb1 Rb6 Rc7 Q8d5 Rc1 Qg5 Rd7 Nc6 e7 Ka4 e8R Ne7 Ra8 Kb5 Nd5 Kc4 Bb1 Nh7 Rc2 Kd3 Rc1+ Kd2 Bc2 Nf6 Nde3+ Rd6 Bd4 Rb6 Raa7 Rg3 Ra6 Rh3 Kg2 f1R Rd8 Rhf3 Rd7 Rg1+ Kh2 Rfg3 Nf2 R3g2+ Kh3 f3 Nd3 f2 Rf1 Rb8 Ba7 Rb6 Re1 f1B Nf2+ Rd6 Ng3 Bb5 Ne2 Rg4 c4 R1g2 Rc7 Rf4 Rh1 Rb6 Rh2 Ke1 Rb1 Nc1 Rb3 Rd4 Rd3 Nb3 Rd2 Rf4 Rdd7 Rf3+ Ng3 Qf4 Nf1 Qfe5 Kh4 Nfd5 Ne2 Rc3 Ne3 Nf6 Rh3 Qf5 Rh2 Qfd5 Rh3 Rh2 Kg3 Qc5 Rh5 Rg2+ Kh3 Qg5
1bN3B1/1RP5/1br3nK/2R1N3/rrN1r1N1/3p1nR1/4nq1B/k1b1B1nB w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 h5 Qe1 f4 Qg3 Bb7 Ke1 Be4 Qg2 Bf5 gxf5 Rh6 Qh3 Rh8 Qg4 hxg4 Kf2 Ke7 b4 Kd6 h4 Ke5 e4 a5 c4 g5 b6 d5 f6 d3 b5 Kd4 e5 a4 c5 a3 e6 a2 b7 d2 e7 d1R e8B Re1 h5 Rh6 f7 Nc6 b8R Qf6 b6 Ra4 b7 Bd6 f8N Re4 Nd2 Kc3 Rh3 d4 Nh7 d3 Rg3 Nge7 Nc4 Nd4 c6 Ng6 Bg2 Ne2 Bh1 Qf8 Rc8 Bb8 Rb1 a1B Bf7 Bb2 Bg8 Ba3 Be3 Bc1 Bd2+ Kc2 Be1 Qf7 Kf1 f2 Kg2 f1N Nf3 Nd2 Nfe5 Nf3 Nf6 Qf8 Rb5 Qf7 Rc5 Kb1 Rc7 Ka1 Rd7 Nfh4+ Kh2 f3 Re7 f2 Rc7 Rh7 h6 f1R Rd7 Rg7 h7 Rff4 h8N Nf3+ Kg2 Qf8 Nhf7 Rh7 Re7 Rh6 Nfd6 Qf7 Nc8 Qf8 Rh3 g3 Rf7 g4 Rh7 Ba7 b8B Qf7 Bc7 Bb8 Bd6 Qa7 Rb7 Rb4 c7 Qa2 Kf1 g2+ Kf2 g1B+ Kg2 g3 Nfg4 Rf8 Rh5 Rff4 Kh3 Ngh4 Rg5 g2 Nh2 Qb2 Rg3 Qd4 Nhg4 Qf2 Be7 Rc6 Bd6 Nd2 Be7 Ng6 Bd6 Nh8 Kh4 Ng6+ Kh5 Nf3 Kh6 Ra4 Nd2 Reb4 Ndc4 Re4+ Kh7 Qf1 Kg7 Bd4 Kh7 g1N Kg7 Qf2 Kh7 Re3 Kh6 Re4+ Kg7 Rcb6 Rc6 Ba7 Rh3 Re3 Kh6 Qg2 Nf7 Bb8 Bh2 Qf2 Rg3 Rba6 Nfe5 Re4+ Kg7 Bda7 Rc5 Rc6 Kh7 Bb6 Kg7 Nd2 Kh6 Ndf3+
q1b1qNn1/2R1r1BN/8/pq2B2b/3q1NBr/4bPK1/3R2bB/k2nN2R w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 c4 fxe4 h4 d5 cxd5 g5 Qb3 gxh4 axb5 Bg4 b6 Bf5 b5 Bc8 Qb4 cxb4 d4 Kd7 g4 Kd6 g5 h5 b7 a5 b6 e5 g6 b3 g7 b2 Ra2 e3 Ra3 e2 Rah3 e4 Bg2 Nc6 b8N Na7 b7 Nb5 Nd2 b1B Rd3 h3 Ndf3 h2 Nh3 h4 Rd2 Nc3 Nd7 Ra7 Nf4 h3 Bb2 Nd1 b8B+ Rc7 Nf6 Rh4 Nh7 Qd7 Ba1 Qb5 Bb2 Be7 Ba1 Bg5 Nf8 Ke7 d6+ Kf6 d5+ Kf5 Be5 Re7 d7 Bc2 Nh5 Be3 d8B Bb3 d6 Bf7 Nf4 Bh5 Rf1 h1B d7 h2 Bh3+ Rg4 Bdc7 Bg2 d8R h1Q R8d7 Qg1 Bb6 Qh1 Rc7 Qg1 Bd6 Kf6 B6a7 Rh4 Bg4 Qh1 N4g6 Qg1 Bh2 Qh1 Nf4 Qg1 Nd4 Ke5 Nc2 Qh1 f3 Qg1 Nd3+ Kd5 Bc5 Kc4 Bd4+ Kb3 Nf4 Ka2 Bc3 Bc5 Be5 Qd4 Rh1 Kb2 Nb4+ Ka1 Nbd3 Ne3 Kf2+ Nd1+ Kg3 e1Q+ Rf2 Qg1 Rd2 e3 Ne1 e2 Bf6 Qe3 Be5 Qe4 Bf6 Nh6 g8N Qa8 Bg7 Ba7 Nf6 Ng8 N6h7 Bb6 Rc3 Ba7 Bbe5 Bb6 Ned3 Ba7 Rc7 e1Q+ Nf2 Qee2 N2d3 Qe8 Ne1 Q2b5 Nfd3 Qc3 Nf4 Be3 Rf1 Qcb2 Rh1 Qd4
n3rrk1/pB1p1R2/RB3n2/1qN5/1N1b2qP/Rn2N3/3B1N2/nK2R1bn w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 h5 Qe1 f4 Qg3 Bb7 Ke1 Be4 Qg2 Bf5 gxf5 Rh6 Qh3 Rh8 Qg4 hxg4 Kd1 Kf7 c4 g5 Kc2 g3 h4 f2 b4 g2 e4 f3 c5 g4 e5 g3 e6+ Kg7 b6 Nf6 c6 Bc5 b7 Ng8 f6+ Kh7 c7 Bf8 c8N Nc6 b8N Na5 b5 Qb6 f7 Qc6+ Nc3 d3+ Kb1 d2 e7 d1N e8R Nb2 b6 Nb3 b7 Bc5 f8R Bd4 Re3 Nf6 Nd5 Qb5 Bd2 Na4 Na6 Nb6 Nh3 g1B b8B g2 Rf7+ Kg8 Bc7 Rb8 Ra3 Na1+ Nab4 Na8 Nd6 Re8 Re6 Rf8 Bd3 f1N Be4 f2 Bb6 Ng3 Nb7 f1N Nf2 Re8 Nc5 Rf8 Rh3 Nh1 Rhe3 Re8 Re1 Rf8 Ne3 Re8 Bc1 Nd2+ Ka2 Ndb3 Bb7 Bh2 Bd2 g1Q Kb1 Qg4 Bc7 Bg1 Rea6 Rh5 Ba5 Rhe5 Bc7 Rf8 Bb6 Ree8
bBkn1n2/RNq3bB/P1r1N3/4q1N1/2p2p2/1N1Rr2R/n2RBb2/K6n w - - 0 1 legal: proof: f4 e5 g4 a5 c4 f5 b4 axb4 Qb3 d5 cxd5 h6 Qg3 exf4 gxf5 h5 Qg4 hxg4 Kd1 Kd7 Kc2 g5 Kb2 b5 d4 c5 h4 c4 e4 b3 a4 g3 a5 g2 h5 b4 d6 g4 e5 g3 e6+ Ke8 d7+ Ke7 f6+ Kd6 f7 Kc7 d5 Rh6 e7 Bb7 e8B Nc6 Rh2 Nf6 Nd2 Nh7 Nh3 g1B Be2 g2 Ng5 Bf2 d6+ Kb8 Rh3 g1N Rd3 Qc7 d8N Nh3 d7 Bg7+ Kb1 b2 f8N Rf6 Nfe6 Nf8 h6 Qe5 Ka2 b1N h7 Nc3+ Kb2 b3 h8R Ra6 Bg6 Ba8 Nb7 Nd8 Bh7 Rc6 Ra4 Rf7 Ka1 Re7 Ba3 Qc7 Bd6 Re8 Nec5 Re3 Ra3 Bh4 a6 Nf2 Nce6 Nh1 Be5 Ng6 Re8 Nf8 Re7 Be1 Ra5 Bf2 Rad5 Re4 Rh3 Re3 Rd3 Nd1 Kb1 b2 Nb3 Nc3+ Kc2 Qd6 N7a5 Nb5 Rd2 Nf7 Nc7 Qe6 d8R+ Qc8 R8d3 Nd8 Kb1 Qb7 Rh5 Kc8 Nce6 Qd7 Rh3 Qd5 Bb8 Qe5 Ra7 Qc7 Na1 Qe5 Ka2 Nc3+ Ka3 b1Q Nb7 Qb6 Nb3 Qba5+ Kb2 Qac7 Ka1 Na2+
1NR2r2/1Rp1R3/1Pb5/Bp3Knk/2N1NnnN/3n2q1/1B5n/r1rBBq2 w - - 0 1 legal: proof: e4 d5 h4 b5 b4 g5 c4 gxh4 c5 f5 Qc2 a6 Qc4 dxc4 exf5 Bg7 Kd1 Bd4 Ke2 a5 Ke1 axb4 Rh2 b3 Rh1 Bc3 Kd1 Ba5 Ke1 Bb6 cxb6 Qd4 Be2 Qd6 Bf1 Qd8 Ke2 Kf7 Ke3 h5 Ke4 e5 d4 c3 a4 h3 g4 c2 f4 b2 a5 h2 g5 h4 a6 h3 f6 Kg6 a7 Rh5 d5 Qd7 d6 Rh4 f7 Qe7 f8B Be6 d7 Kh5 d8B Bd5+ Kf5 e4 g6 e3 g7 e2 Nf3 e1N Be2 Nd3 Bd1 Bc6 Nbd2 b1R Nc4 Na6 Bb2 c1N Re1 Nf6 g8N Qd6 Re7 h1N Ra3 Rg4 Nh4 h2 Ra5 Rb8 a8R Nac5 R5a7 Ne2 Rb7 Rg1 Bg7 Ng4 Bgc3 Rc1 Ba5 Ne6 Nf6+ Kh6 Ne4 Kh5 Rf7 Ng5 Re7 Rc8 Ng6 Ra1 Rd7 Nf6 Bb3 Rgb1 Bd1 Ngh7 Be7 Bd5 Nh4 Rd8 Rc8 Nhf2 Bf8 h1Q Bg7 N6g4 Re7 Rc1 Bgc3 Nge5 Bcb4 Ng5 Be1 Ne6 Kf6 Qf1 f5 Nf3 Rf7 Nh2 Re7 Kg4 Kg6 Qg3 f6 Bc6 f7 Ng5 f8N Re8 Kf6 Kh5 Nd7 Rd8 Kf5 Nfg4+ Nf2 Rg8 Nb8 Nef4 Ne4 Rf8+
k1nNNKBb/r1q2q2/q4p1B/npRb2R1/4B1Rb/5R2/P2p4/2B1N1n1 w - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 cxd4 g5 e5 fxe5 Qf6 Nh3 Qe7 Ng1 Qd8 g6 h5 Na3 b5 Qd3 f6 Qg3 Ke7 Qg4 hxg4 Nb1 Ra6 Bb2 Re6 Ba3 Ke8 Bb2 Re7 Bc1 Rf7 gxf7+ Ke7 Kd2 g5 Kd3 d5 e4 Kd7 c4 Kc6 h4 Kb7 e6 g3 e5 g2 c5 b3 e7 g4 e8B b2 c6+ Ka7 e6 g3 h5 Na6 e7 Ka8 c7 Nh6 Rh4 Bh3 c8R+ Nb8 Rc5 Nc6 Nc3 Nf5 h6 Na5 h7 Nd6 Nce2 Qc7 Rg4 Bg7 f8B Nc8 Nf3 g1B Ne1 g2 Nf4 Bf2 Bg6 g1N e8N Bg2 Be4 Bh4 Ne6 Bf3 Nd8 b1Q+ Nc2 Qb4 Ne1 Qa4 Bg2 Rg8 h8R Qf7 Rh7 Bh8 Rh5 Rg7 Rhg5 Rh7 Bh6 Qc7 Kd2 d3 Kc3 d2 Bh1 Qb3+ Kd4 Rg7 Bh7 Be4 Bg8 d1Q+ Bd2 Qdc2 Bc1 Qa7 Rb1 Qa6 Rb2 Qh2 Rf2 Ra7 Rf3 Qc7 Rff5 Bd3 Be4 Bf1 Rf2 Bg2 Rf3 Qc4+ Ke3 Qf7 Kf4 Qc7+ Kf5 Qb3 Nb7 d4 Kg6 d3 Nd8+ Qd5 Rfg3 d2 Rb3 Qdb7 Rf3 Ne7+ Kf7 Nc8+ Kf8 Qd5 Bg6 Qde6 Rfg3 Bc6 Rf3 Bd5 Be4 Qef7+
1b1R2bR/1n1brBn1/NB4p1/1B2bbP1/RrqqNN1B/4r2N/2q5/1K3k2 w - - 0 1 illegal: No possible last move
5r1K/8/1n1RbB2/1p1RN3/B1NNNb1b/nq3B1k/1Pn1rR1r/q2Rqq2 w - - 0 1 illegal: No proof kernel
R5n1/2pB2Bq/2b1n2n/N1B1bN1k/R1P1r3/2RK1qq1/7q/1NrB1rNr w - - 0 1 illegal: No possible last move, all moves rejected
6bn/rn1NRR2/N1q4k/2Bp4/1q2R1Bb/r1Np1Kqn/3PN2q/2B1q2B w - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 c3 b5 axb5 e5 Qa4 exf4 Qd4 cxd4 Kf2 f5 b4 Kf7 e4 Kg7 g4 d5 b6 a5 b7 h5 b5 h3 b6 h2 c4 h4 e5 d3 e6 a4 g5 h3 g6 f3 c5 f4 c6 a3 e7 a2 e8N+ Kh6 c7 Qf6 g7 Na6 b8N Ne7 g8B Ng6 b7 Be7 Be2 Nc5 Nd7 Rh7 b8B Nh8 Be6 Ra3 Ne5 Qg5 Bf5 Be6 c8R Bg8 Bb2 Qg3+ Kf1 f2 Be4 Bh4 Nc3 Rha7 Bd6 Nb7 Re1 a1Q Nc7 Qb1 Bc1 Qb4 Na6 Ra8 Ngf3 Ra7 Rg1 h1N Rc4 h2 Nd4 Qh3+ Bg2 Qd7 Be4 Qc6 Kg2 f3+ Kh3 f1Q+ Kg4 f2 Nd7 Ra8 Bc5 Qh3+ Kf4 Qg2 Rgf1 Ra7 Bg4 Qh3 Re3 Qg2 Nde2 Qh3 Rd1 f1Q+ Bef3 Qg1 Re7 Nf2 Rce4 h1Q Rf1 Qhg3+ Ke3 Nh3+ Rf2 Qgd6 Bg2 Qgh2 Rff7 Qf1 Bh1 Qe1 Kf3 Qdg3+
N1N1bR1B/6bn/1R5b/p3bKRB/5NrR/2rbr1kq/PB2p3/n3N1q1 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 fxg6 Qf3 g5 Qg2 g4 Qg3 hxg3 Ke2 Kd7 Ke3 Ke6 Kf4 b5 d4 g5+ Ke3 Kf5 f4 a5 c4 e5 h4 b4 h5 b3 h6 b2 c6 g2 d5 g3 c7 Kg4 c5 Nc6 d6 Qd7 h7 Nf6 f5 Nb4 c6 Nc2+ Kd2 e3+ Kd3 e4+ Kc3 Bg7 Rh5 Re8 h8B Nh7+ f6 Rb8 Nf3 g1B Na3 b1B Nc4 g2 Nb6 Bh2 Be2 g1R Na8 Rb3+ Kc4 Ba6+ Kd5 Rc3 c8R Bb5 f7 Kf4 f8N g4 c7 g3 Rb8 g2 c8N Qh3 Bb2 Re7 Rh6 Be8 d7 Bg3 Ng6+ Kg4 Bc4 e2 Rb6 e1B Be2 Bd2 Rh5 Bdh6 Rh4+ Kf5 Bd1 e3 Be2 Bc7 Nf4 Re4 Bd1 Bce5 Be2 Ne1 Bd1 Bd3 Be2 Nc2 d8R Ba4 Rc1 Na1 Rc2 Bd7 Ne1 Kg5 Rg8 Be8 Bh5 Kf5 Rf8+ Kg5 Rf2 e2 Rf1 Re3 Rf3 Rh1 Rf1 Rh2 Rf3 g1Q Rf2 Rg2 Rf3 Bef6 Rg3+ Kf5 Kd6 Ke4 Rg6 Rg4 Ke6 Bd4 Rg5 Bde5 Neg2 Kf3 Ne1+ Kf2 Nc2 Kg3 Ne1 Bc4+ Kf5 Bd3+
qNB1B1b1/q2B1n2/1p1K1pkr/3Rrp2/N2b1B1R/1P6/4R1nq/N2N2rq w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 d5 f4 dxc4 b3 a4 f5 e6 Qc2 exf5 Qc3 a3 Qb2 axb2 Kf2 c5 Kf3 g5 a4 c3 h4 b6 e4 c2 d4 g4+ Kf4 c4 Ke5 c3 a5 g3 a6 g2 a7 Bc5 d5 Qc7+ d6 Rh6 Ra2 Bf2 Ne2 g1Q Bf4 c1R Nd4 c2 Nc3 b1Q Bb5+ Qd7 Na4 Qg4 Rd1 Qc6 d7+ Ke7 d8N Rf6 h6 Bg3 h5 Qc3 h7 Qa5 h8N Na6 h6 Bf2 h7 Nc5 Bd7 Qg2 N8c6+ Kf8 Rd2 Kg7 Ng6 Qb2 h8R Nh6 Nh4 Ne6+ Kd6 Rg1 e5 c1Q Nc2 Bd4 Na1 Qf3 Rd3 Qh2 Ng2 Kg6 Nb8 Bb7 Rh7 Bd5 Ne3 Qc8 Nd1 Qfh1 Re2 Qh8 Nc6 Re8 a8B Qa7 Bb7 Re7 Ba6 Qha8 Nb8 Re8 Bac8 Re7 Bg5 Nf4+ e6 Ng2+ Bf4 Ng8 Rh4 Nh6 Bb7 Bc4 Kc7 Re8 e7 Re6 Rdd2 f6 Rd3 Re5 Kd6 Rh8 Ba6 Bg8 Bac8 Ng4 Rdd2 Rh6 Rd3 Nf2 Rdd2 Nh3 Rd3 Ng5 Rdd2 Bf2 Rd5 Bd4 e8B+ Nf7+
2NR2N1/3Bq2R/2r3p1/n1RB3r/3Bb3/p3ppP1/nb1KpB1r/1k1N2nR w - - 0 1 illegal: No possible last move, all moves rejected
r2R3q/R3Nnb1/1kpKn2R/3B2q1/R2bQ1P1/r1rq3Q/1q6/R2b1R1R w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 b3 Qg5 Ba3 Qd8 Bc5 h5 Bf2 h4 Qc1 gxf2+ Kd1 Bb4 g4 Nc6 Nc3 Rh7 Ne4 Rh8 Ng3 hxg3 Kc2 Nb8 Qd1 Be7 Kc1 Bf8 Kc2 Kd7 Kc3 f5 Kd4 a5 Ke5 c6 h4 Kc7 d4 a4 e4 g2 b6+ Kb7 b4 a3 d6 a2 d5 f3 d7 f4 h5 Na6 b5 Rh7 d6 Nc7 h6 Ne7 Ne2 g1Q Bg2 f1R Nc3 f2 Qf3 Ncd5 Qh3 Rg7 h7 f3 h8R Nc7 Rh6 Rc1 Nd5 Rc3 Rf1 Qe8 d8R a1B d7 Ne6 Kd6 Ng6+ Ne7 Qh2+ e5 Bb2 Ra1 f1Q Ra4 f2 Bd5 Qd3 Rf1 Nef4 e6 Ne5 Rfa1 f1Q Ra7+ Kb8 b7 Qc1 R1a4 Qeg6 Re8 Qcc2 d8R Qg5 Ra1 Rg8 R7a4 Bg7 Rf8 Ra5 Rf7 Ka7 b8R Ba6 Ra8+ Kb6 Ra7 Qcg2 Rh1 Rf8 Raa1 Raa3 Rff6 Ka5 b6 Qf2 b7 Kb6 Rda8 Bb5 Rd8 Ba4 Rf5 Bd1 Rda8 Kb5 b8R+ Qb6 Rd8 Qb7 Ra5+ Kb6 Ra4 Re8 R8a7 Rg8 Rd7 Ra8 Rd8 Qc8 Ng6 Qhe2 e7 Ne6 e8Q Qec2 Rff1 Qb3 Ra2 Ba1 Ne7 Qb2 Rdd7 Qd8 Qg6 Qf8 Qe4 Qh8 Rd8 Rc1 Rh5 Qbe2 R4a5 Bd4 Ra1 Qb2 Rh6 Rcc3 Ra4 Nf7+
2RRN3/2pq3b/2q2qnr/1b2B2Q/3KP1RR/1br5/pbQ4R/kn1R3R w - - 0 1 legal: proof: g4 g5 a4 h5 f4 d5 c4 b5 axb5 gxf4 Bg2 e6 g5 e5 Bf3 Bh3 cxd5 Bc8 Na3 e4 Nc2 exf3 Ne3 Bb4 Ng4 hxg4 Qa4 Ba3 Qd1 Bf8 Kf2 Kd7 b4 Kd6 e4 Ke5 h4 Kd4 g6 a5 b6 f5 b5 a4 d3 Kc3 h5 a3 d4 a2 h6 Ne7 d6 Nbc6 d5 Bg7 d7 Na5 h7 Nc4 b7 Ra3 b8Q Nd2 b6 Nb1 d6 Rb3 Be3 Kb2 b7 Rc3 Rh2 Bd4 g7 Ng6 g8R g3+ Ke1+ g2 Kf2 Qe8 d8R Qc6 Ne2 Be6 d7 Bb3 Ng3 Bf6 Ke1 f2+ Ke2 g1Q Nh5 f1B+ Kf3+ Bg2+ Ke2 Bg7 Bd4 Bh3 Be5 Qd4 Nf6 Qda4 Qd3 f3+ Ke3+ f2 Ne8 Qab5 Qa8 f4+ Kd4 f3 b8R Bf5 Rbc8 Bf6 Rh4 f1B Qa5 f2 Qd1 Bd3 Qa4 f1Q Qh5 Ne7 Rgg4 Ng6 Rb8 Be2 Rdc8 Qf3 d8R Bec4 Rd6 Qd7 Rd8 Qbc6 Rbc8 Bb5 Rd5 Nd2 Rd1 Nb1 Rdh1 Ka1 Qc4 Qf4 Qd3 Qg5 Qe2 Bg7 Qc2 Qgf6 R4h2 Rg8 h8R Rf8 Rh6 Rh8 Qg5 Rh7 R6h4 Rh6 Rd6 Bf8 Rd5 Ba3 Qh5 Bb2 Rd6 Nh8 Rd5 Bd3 Ke3 Bh7 Rd4 Bb5+ Rd3 Qdf7 Kd4 Ng6 Rdd1 Qfd7+
1rk1KQ2/2BN3Q/2b1q3/4b1p1/n1P4N/qNn3Np/2N3rp/Rn1r2NN w - - 0 1 legal: proof: b4 b5 a4 e5 axb5 c5 h4 g6 g4 c4 g5 c3 Bg2 Bc5 Bd5 Be7 Ra6 Bf8 Rf6 Bc5 Rf4 Bf8 Rd4 exd4 dxc3 Qf6 c4 Qd8 h5 Nf6 c5 Ng8 Be4 gxh5 g6 h4 g7 Ke7 Bd3 Ke8 Bg6 fxg6 Kd2 a5 Kd3 d5 c4 Kd7 f4 h5 e4 a4 f5 a3 e5 a2 b6 a1R e6+ Ke7 b7 h3 f6+ Ke8 c6 g5 b5 h4 e7 h2 c7 Kd7 e8N h3 f7 Nf6 g8Q Bd6 f8N+ Ke7 b6 R8a2 Ng7 Rh6 Qh5 Rb2 Na3 Raa2 Bf4 Be5 Nc2 Qd6 Ng6+ Kd7 Nf5 Ne4 Ng3 Nc3 Nh4 Na6 Qf8 Qe6 Qg6 Nb1 Qh7+ Kc6 b8N+ Kb7 Nc6 Bd7 c8N Nc5+ Ke2 d3+ Ke3 d2 Na5+ Kb8 b7 d1Q Nb3 Na4 Ne7+ Kc7 b8N d4+ Ke4 d3 Nef5 d2 Nh5 Qc1 Nfg3 Qa6 Kd5 d1N Nf6 Ra1 Ng4 Rb6 Nf2 Rba2 Qhf5 Bc6+ Ke6 Qc8+ Kf7 Ndc3 Nd7 Qa3 Qh7 Qa6 Ke8 Kc8 Be3 Rb8 Bb6 Nd2 Bc7 Rd1 Ngf3 Ndb1 Rf1 Rd5 Nfh1 Rb2 Rc1 Rd1 Ng1 Qb6 Ne1 Rg2 Nc2 Nd2 Ra1 Ndb1 Bd6 Qe3 Bc7 Qe2 Qff7 Qg4 Qf8 Qe6+
Qb3BQ1/8/pp2q1r1/q6k/1Q2nR1b/3BrbQ1/QP2p1nN/QQ3n1K w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 a4 Nb8 Ra2 Bd7 Ra3 Bc8 a5 Bd7 a6 Be6 Rb3 Bc8 Rb6 axb6 a7 Nf6 Nc3 Bd7 Ne4 Ng8 Nc5 Bc8 Na6 bxa6 g4 Kf7 f4 h5 Kf2 c5 Kg2 e5 d4 h3+ Kh2 h4 d6 c4 f6 Kg6 g5 e4 f7 c3 d7 e3 d5 e2 f5+ Kh5 f6 c2 g6 Bb7 d6 Rh6 g7 Qe7 d8Q Nd7 Bg2 Nc5 d7 Nd3 Qb8 Nf4 d8Q Rg6 Be4 Ng2 Bh6 c1B Q8d5+ Bg5 Qa2 Qb4 Qda1 Qa5 Qe5 Re8 a8Q Bd6 f8Q Bb8 f7 Nf6 Qg3 Re6 Bf5 Re3 g8Q Be4 Nf3 Bc6 Kg1 h2+ Kf2 h3 Rf1 h1Q Qb4 h2 f8Q Bh4 Bd3 Be4 Qc8 Bb7 Qcc1 Be4 Qcb1 Bb7 Rc1 Qd1 Bf8 Qb3 Rc6 Qe6 Rc4 Bd5 Rf4 h1N+ Kg1 Bb7 Qh3 Ng3 Nh2 Nf1 Kh1 Bf3 Qg3 Ne4
n3R3/Nq4Br/1bq1K3/1bRR1np1/2R3RQ/PR3pr1/n1p5/4knRQ w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 b4 axb4 c4 g6 cxd5 Be6 g5 Bc8 Bh3 Qd7 Nc3 Qd8 Bf5 gxf5 g6 h6 Ne4 Ke7 Ng5 hxg5 Kf2 Kd7 Ke1 Ke8 Kf2 Ke7 Ke3 c5 h4 b5 d4 f4+ Ke4 c4 a3 f3 h5 f6 h6 b3 e6 Kd6 Kf5 c3 e4 b4 e5+ Ke7 h7 c2 g7 f2 Rh4 f1N Nf3 b2 Rg4 b1Q Bb2 b3 Qc1 Na6 d6+ Ke8 d5 Rb8 d7+ Ke7 Qf4 Qc7 d8R Bd7 Rc8 Bb5 Nd4 Qc6 Qg3 Rb7 Qh4 Nc7 Bc3 b2 Qh1 Be2 Nb5 Na8 Na7 Rb3 Rb8 Bc4 Rb6 Bb5 d6+ Ke8 e7 Kd7 Bd4 Rg3 e8R Be7 Rc8 Bd8 Rbb8 Bb6 Bc3 Qd1 Rc1 b1N Bb2 Qb7 Rcc4 Qdd5 Rbc8 Qg2 R8c5 Qgc6 Qh4 Nc3 e6+ Ke8 d7+ Ke7 d8R Na2 Rdd5 Nh6+ Kg6 f5 g8R f4 Rb8 f3 Bg7 Nf5 Ra1 Rd8 h8Q Rd7 Qh1 Rc7 Q8h4 Rd7 Re5 Kd6 e7 Rc7 e8R Re7 Bh6 Rh7 Kf6 Nh2 Rg1 Nf1 Bg7 Qcd7 Rc7 Qdc6 Re3 Kd5+ Kf7 Qa6 Rb3 Qab7 Rbd8+ Qd6 Rc8 Qc5 Rce4 Qc4 R4e7 Qe4 Re5+ Kd4 Ke6 Ne7 Rb4+ Ke3 Rcc4 Kf2 Rb3 Nf5 Rcd8 Qec6+ Rd6 Qcc7 Rec5 Ke1 Rdd5 Qcc6+
1Q1rr1n1/4Qb2/kqqPRp2/1b1N2QR/3Q3Q/2nb1KbQ/1Q3pp1/B7 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 axb4 c4 g6 Bh3 Ne7 Nc3 Ng8 Ne4 Ke7 Ng3 Ke8 Nf5 gxf5 g5 d5 Bg4 hxg4 cxd5 Be6 Qb3 Bd7 Qd1 Bc8 Kf2 Kd7 h4 c5 d4 Kc7 a4 Kb6 e4 b3 a5+ Ka7 g6 b5 h5 b2 g7 b1B a6 b4 e6 g3+ Kf3 b3 d6 g2 e5 f4 d5 b2 d7 c4 h6 c3 d6 c2 e7 Nc6 e8Q Nb4 h7 Nh6 g8Q Rb8 e6 Nd5 e7 Nf6 Qg5 Qb6 d8Q Nhg8 Nh3 Nd5 Qb5 Bg7 e8Q Ba2 Qee7+ Bd7 Qd4 b1B Bb2 c1Q Re1 Bc2 Re6 Bd3 Bc3 Rc8 Qb2 Be5 Qh4 Qc2 Rh1 Bac4 Qeg5 f6 Qe7 Re8 Rh2 Qa4 Rh1 Qc6 Rh2 Kb8 a7+ Kb7 Rh1 Ka6 a8Q+ Qa7 Qab8 Qab6 Qb1 Ba2 Ba1 Bb3 Qbb2 Nc3+ Kf2 f3 Nf4 Bbc4 Nd5 Bg3+ Ke3 f2 Kf3 Rd8 Rh3 Bb5 Rh1 Be8 Qh3 Nh6 Qhh4 Rf8 h8Q Bf7 Qh3 Ng8 Q8h4 Rde8 Qh4g4 Bf5 Qh8 Bfd3 Rh4 Rd8 Qh3 Rfe8 Qh7 Ne2 Qhe4 Ba4 Rh5 Bab5 Qeh4 Nc3
1k2B1n1/b3n1Bp/PBb1B2p/2N5/Q1q2q1B/nR1rp1Br/K2B4/4nQ2 w - - 0 1 legal: proof: e4 d5 h4 a5 c4 f5 cxd5 Nf6 exf5 Ng8 b4 Qd7 b5 Qd6 h5 Qd8 h6 gxh6 a4 b6 Nc3 Bb7 Na2 Bc8 Nb4 axb4 a5 Qd7 a6 Qd8 Ra5 bxa5 d4 Kd7 Kd2 e5 Kc2 c5 Kb2 Kc7 g4 e4 f4 b3 b6+ Kd6 b7 Kc7 g5 c4 d6+ Kc6 g6 a4 d7 Kc7 g7 e3 d5 Qh4 d8B+ Kd6 f6 Qg4 f5 Kd7 d6 Kc6 f7 Bd7 f6 Qf4 Bb6 a3+ Kb1 c3 Nf3 b2 Ng5 c2+ Ka2 b1N Ne4 Be8 d7 Bc5 Bd2 c1Q d8B Qc4+ Qb3 Kd7 f8Q Nc6 b8B Kc8 f7 Nce7 Bb8c7 Bd4 Nc5 Bc6 Be2 Rb8 Bh5 Rb7 Be5 Rd7 Rc1 Rd6 Rc3 Rg6 Bd6 Rg3 Bg6 Rh3 Be5 Qff1 Bg3 Qf4 Rd3 Kb8 Bh5 Qb5 Qa4 Qc4+ Rb3 Nc3+ Ka1 a2 Kb2 a1N Ka3 Nc8 Bdh4 Nb1+ Ka2 Nc2 Bg6 Nba3 Bh5 Nf6 g8B Ne1 Bf3 Ba8 Bc6 Bb7 Be8 Bc6 Qg7 Ne7 f8B Bb2 Qg6 Bd4 Be6 Nfg8 Qb1 Bf6 Nb7 Bd4 Bg7 Bc5 Bba5 Ba7 Bb6 Nf6 Nc5 Rg8 Bh5 Rd8 Be8 Nfg8 Qd3 Rd5 Qf1 Rd3
1R2r3/1K2Rb2/2R1rk1p/qr2bPp1/3Q1QB1/2N2R1R/nn3r1R/5nQ1 w - - 0 1 legal: proof: b4 a5 e4 b5 g4 f5 exf5 d5 c4 h6 cxd5 Qd7 g5 Qd8 a4 axb4 axb5 Ba6 Qe2 Bb7 Qd1 Bc8 h4 Kd7 h5 Ra6 g6 Ra5 Bb2 Ke8 Bf6 Ra8 Bg5 hxg5 h6 Na6 h7 Nb8 Nc3 Ba6 Ne4 Kd7 Nd6 Bc8 Nf7 Ke8 Nh6 gxh6 Ke2 e5 Ke3 Ke7 Ke4 c5 f4 c4 d4 c3 g7 c2 f6+ Kf7 d6 c1R Kd5 e4 d7 e3 b6 e2 b7 e1N Rh2 b3 Bh3 b2 Ra7 b1R Bg4 Nf3 Ne2 Qc7 d8Q Qe7 Qc7 Nd2 Nc3 Na6 Kc6 Nf1 b8R Nc5 d5 Nd3 d6 Rc2 d7 Nb2 d8R Rf2 Rd3 Be6 Rdh3 Ba2 Rb6 Re8 Kb7 Kg6 f7+ Nf6 g8R+ Bg7 f8R Qe1 Rf7 Re6 Rb8 Ne4 Rc6 Re8 h8Q Be5 Ra3 Qd2 Re7 Qd5 Qd4 Qa5 Qh7+ Kf6 f5 Neg3 Qcd6 Ne2 Qf4 Nc1 Qdd4 Bc4 Rb3 Na2 Ra3 Rg2 Qg1 Rf2 Qg8 Rd6 Qd5 Bb3 Qdd4 Bf7 Nb5 Re6 Raf3 Ra1 Nc3 Rd1 Qde4 Rd5 Qd4 Rb5+
B1knq1rR/4q3/qp4K1/nqnR2BP/5b1p/1Q2R1R1/3B2QQ/4nR2 w - - 0 1 illegal: No possible last move
2k1bRQ1/5Rp1/2N5/P2nRp1n/r1pN4/p3b1Q1/Qp2K1r1/N2Nq1N1 w - - 0 1 illegal: No possible last move, all moves rejected
N3NkN1/4b2Q/QNnP4/n4NrQ/6N1/1b2r3/R1qqBr1b/Kq4bn w - - 0 1 illegal: No possible last move, all moves rejected
RK1Q1rr1/4Q2r/1q3b2/Q2PR2Q/4BQ1b/1b1N1n2/Rnbn2k1/nQb5 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 b3 h6 Qc2 Bb4 Kd1 Bb7 Bb2 Qh4 Nc3 Qh5 Ne4 Qh4 Bd4 Qg5 Kc1 Qd8 Qd1 Bf8 Ng5 Bc8 Bf2 gxf2 g4 Bb7 Ne4 Bc8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Nh3 Kd7 Ng1 Ke8 Kb2 Ke7 Kc3 Kd6 Kc4 Ke5 h4 Ke4 d4 a5 e3 c5 b4 f5 b6 f3 Kb5 g3 h5 a4 d6 g2 h6 f4 h7 a3 b7 a2 d5 c4 g6 c3 g7 c2 d7 c1B Qa4 Be7 Qa5 Bh4 Ne2 g1B Bg2 Nf6 g8R Nc6 b8Q f1N Qbc7 Bh2 Kb6 Nd4 b5 Nd2 Re1 Ng4 Bh1 Rb8+ Ka7 Nf2 b6 Nd3 b7 Nb2 Qd6 Qc7 d8Q Bf5 Rf8 Rg8 h8Q Bf6 Qh5 Bg3 Bg2 Bgh4 Qdb4 Qc5+ Qbb6 Rc8 b8Q Rc7+ Ka8 Rh7 Qb8d6 N2b3 Kb8 Nd2 Qb7 Qb6 Re8+ Kd3 e4 Ke3 e5 Kf2 e6 Bc2 e7 Bb3 Rf8 Bc2 e8Q Bb3 Rb1 a1N Qee7 Bc2 Rh1 Bb3 Rh2 Bc2 Bh1+ Kf1 Qdb4 f2 Be4 f3 Nf4 Kg1 Qba4 f1B Nd3 f2 Q4b4 N4f3 Qbd6 Bg2 Qf4 Bf1 Rg2+ Kh1 Rg5 Be2 Re5 f1R Re8 Kg2 Rf8 Nab3 Ra1 Bed1 Ra2 Na1 Qeb4 Na4 Qb1 Nb2 Rfe8 Bb3 Rf8 Bdc2 Rfe8 Qa6 Qbe7 Qb6+ Kc8 Nbc4 Qe3 Bg7 Qdd6 Nb2 Q3g5+ Kh3 Qgh6 Nd4 Qdd7+ Rf5 Qf4 N4f3 Rf8 Kg2 Qc7 Qd4 Kb7 Qe3 Ra8 Rff8 Qcd8 Bgf6 Kb8 Qb6+
1nb3K1/1Q2QR1N/1qqNq2r/3k1Nr1/3b1R2/1R1n3N/1PQNb2p/3n2n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Ke7 h5 Ke8 g4 Ne7 d3 Qd6 Bd2 Qh6 Bg2 Nbc6 Be4 Qg7 Bg6 Qg8 Be3 Nb8 Bf2 Bb7 Bh4 gxh4 g5 Bc8 Qb3 Qg7 Qd1 Qf6 Bf5 Ng8 g6 Qd6 g7 Qd8 Bg6 hxg6 Kf2 Ke7 Kf3 Kd6 Ke4 a5 d4 c5 h6 f3 h7 c4 b6 c3 b7 g5 Ra4 c2 Rh3 c1N Qc2 f2 Rb3 f1B Nh3 g4 Nd2 Nh6 g8N g3 Ne7 g2 e3 Rg8 h8R g1N Rh7 f5+ Kf4 Qb6 e4 Qc6 Rf7 Bg7 Kg5 f4 Kg6 f3 Kh7 f2 Rab4 a4 e5+ Kd7 e6+ Kd6 Rc4 Be2 Rcb4 f1Q Rc4 Nd7 b8N a3 Nf5+ Kc7 e7 a2 e8Q a1Q Qe7 Nd3 Qe4 Qa2 d6+ Kd8 d5 Bd4 Qh1 Qf2 Ra4 Rg3 Rab4 Ng4 Kg8 Ra6 Qg2 N7e5 d7 Kc7 d8N+ Nd7 Nb7 Rb6 Nbd6 Ne3+ Ng5 h3 Qh1 Bc5 Rf4 h2 Qe4 Nd1 Qe7 Re3 Nh3 Bd4 Qe4 Rb5 Qg2 Re6 Qg7 Kb6 Qh7 Nf8 Nd7+ Kc7 Qg7 Rh6 Nf6+ Nd7 Nh7 Kb6 Qg2 Nb8 Qe4 Qc4 Qe7 Kc5 Qb7 Qc3 Ne8 Qe3 d6 Qa5 d7 Qe6 d8Q Qab6 Ned6 Ra5 Qbd7 Kd5 Q8e7 Qcc6 Qb7 Ke5 Ng7 Be3 Rf2 Kd4 Rf1 Rg5 Rf6 Kd5 Rf4 Rgh5 Ngf5 Bc5 Kf8 Bd4 Kg8 Rg5+
1R4Q1/1b1k1NKN/2Nn2Rp/4nR2/Qb1q4/Pb2Qrn1/Qrq5/1rr4Q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 c4 d5 cxd5 Ra7 g5 Ra8 h4 Rh6 g6 Ra5 Be2 Ra8 Bb2 Nf6 Bg4 hxg4 h5 Rh8 h6 Ra4 h7 Ng8 Be5 Ra7 Bf4 Ra8 Bh6 gxh6 Ke2 e5 Ke3 c5 Ke4 b5 d4 b3 f4 b2 a3 b4 d6 g3 g7 b3 d7+ Ke7 d5 c4 f6+ Kd6 Kf5 e4 Kg6 g2 f5 e3 f7 c3 f6 c2 Nc3 b1R Rh5 c1Q Nge2 g1N Ne4+ Kc7 d6+ Kc6 Rf5 b2 Ng5 Nf3 Qh1 Qc2 Ra2 Be7 f8R Na6 f7 Nf6 g8Q Nc7 Kg7 Rb8 Ra1 Bb7 Nd4+ Kb6 Re8 e2 f8N e1R Nf7 Nb5 Nc6 Rec1 Ra2 Ne4 Ra1 Qc7 d8Q Ng3 d7 Bb4 Qg5 Nd6 d8Q Ne5 Qd7 Qd8 Qe3+ Kb5 Re6 Qh4 Ref6 Qd4 Rg6 Kb6 Qe6 Kc7 Qa2 Kc8 Ne6+ Kd7 Neg5 Kc7 Qe8 Rf8 h8Q Be1 Ncd8 Bb4 Qa4 Kc8 Nc6 Kd7 Nfd8 Rf6 Nh7 Rf8 Rf2 Rf3 Nf7 Rf1 Qg8 Rbc1 Rh2 b1B Rh5 Rfe1 Rf5 Red1 Qb2 Ba2 Rb1 Be6 Qa2 Rg1 Rb3 Rgd1 Rc3 Bb3 Rc5 Rb1 Ra5 Rb2 Ra8 Rc8 Rb8 Rdb1 Qa1 Rc7 Qa2 Qce4 Ne7+ Rc6 Qa7 Rc5 Nc6 Rcc1 Qa4 Qc2
rb6/P7/1B1BrQ2/1K1Qp1rn/b2N1B2/2q1Nbqk/2r1n3/1N1QB1nB w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 h6 a4 Nc6 h4 Nb8 Ra3 Rh7 Rf3 Rh8 Rf4 gxf4 g5 h5 Rh3 Qd6 Rg3 Qd8 Rg4 hxg4 Ke2 Kf7 Kd3 c5 Kc4 e5 d4 b5+ Kb3 f3 d6 g3 a5 f2 h5 c4+ Kc2 b3+ Kc3 g2 Kb4 b2 h6 c3 d5 c2 h7 Qc7 a6 Nc6+ Kc5 b4 a7 b3 Kb5 Bb7 d7 Bd6 Bf4 c1R d8B Rc2 Nf3 g1N Bg2 f1R Nd4 Rff2 Bh1 Rg2 Ne2 Qc8 Bb6 Bb8 d6 Rg4 d7 Nd4+ Ka5 Bf3 d8Q Qc7 Ka6 Qc3 Qd5+ Ke8 g6 Rg5 f7+ Ke7 f8B+ Kf6 Nd2 b1B g7 b2 Bd6 Ba2 Nb1 Bb3 Bb4 Qe3 Be1 Qf2 Ka5 Qg3 Kb4 Ne7 Ka5 Re8 h8Q Ng6 Ka6 Re6 g8N+ Kf7 Nf6 Ke7 Na3 b1Q Ng4 Qa1 Ne3 Qc3 Nb1 Kf7 Qhd8 Kg7 f6+ Kh6 f7 Kh5 f8B Kh4 Qf6 Kh3 Nc1 Nde2 Bd6 Nf8 Kb5 Nh7 Qd8 Nf6 Qf8 Ba2 Nb3 Nh5 Nd4 Bb3 Qf6 Ba4+
br1rB3/2q3RB/Q3r3/2B1B2q/q2q3r/K1nQBp2/B1P4N/Q2n2bk w - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 g5 axb5 e5 fxe5 Nc6 Ra3 Nb8 g4 Nh6 Nc3 Ng8 Nd5 h6 Nf4 gxf4 g5 h5 Rg3 Qc7 Rg2 Qd8 Rg4 hxg4 Kd2 Ke7 h4 Ke6 e4 d5 h5 f5 h6 a5 h7 f3 b6 f4 b7 g3 b5 d3 Kc3 d4+ Kb3 g2 g6 a4+ Kb2 a3+ Kb3 d2 b6 f2 g7 a2 Kb2 a1Q+ Kb3 d3 Rh2 Qc7 Nf3 g1Q Qe2 d1R Rh5 d2 Rg5 Nh6 Qa6 Qa4+ Kb2 Nd7 b8B Ng4 b7+ Nb6 Bd3 f1R Nh2 Ne3 Ba7 Bc5 b8B Bb7 Bc4+ Bd5 Ba2 Rfe1 Rg3 Rd8 h8Q f3 Rg5 Qg4 Qh7 Qh5 g8B+ Qcf7 Bc7 Rab8 Rg7 Rh1 Qh8 Rde1 Bh7 d1Q Bd6 Qc7 Bd2 Ng4 Be3 Nf2 Qd3 Bb3 Qa6 Nd5 Qd3 Nc3 Bb6 Bb4 Bbc5 Bd5 Qa6 Qd4 Qd3 Qa8 Qa6 Ba5+ Ka3 Nfd1 Qd3 Rd7 Qc8 Bb6+ Qca6 Rdd8 Rg6+ Kd7 e6+ Kc6 e5 Be4 Nf1 Rh4 e7 Re2 e6 Re1 Kb3 Kd5 e8Q Qac6 Nh2 Re2 Be7 Ke5 Ka3 Q6d7 Qf8 Ba8 Rg7 Qb5 Qh8 Qbc6 Bf2 Kf4 Bf6 Qce8 e7 Re6 Bg1 Qb5 e8B Qbc4 Ng4 Kg3 Be5+ Kg2 Be3 Kh1 Nh2 Ne2 Bf8 Qhf7 Rg5 Qdd5 Bd2 Qcd7 Bec3 Bg1 Be3 Qcc7 Bfc5 Qh5 Ba1 Q5d6 Qb2 Qf4 Rg7 Qfg4 Qc1 Qb5 Bf6 Qd4 Be5 Nec3 Qa1 Qba4+
N1nQQr2/1Rpqq3/b2b3k/4rp2/1RPQn3/3NK1QN/r1R1b1n1/3Q4 w - - 0 1 legal: proof: d4 a5 f4 b5 a4 g5 axb5 gxf4 b6 e5 dxe5 Ra7 Nh3 Ra6 Ng1 Ra8 g4 h5 b4 Nc6 b5 Qe7 g5 Qf6 Bd2 Qd8 Bh3 Nb8 Bb4 axb4 Bg4 hxg4 Kd2 d5 c4 f5 e4 Kf7 h4 Kg6 b7 d4 b6 g3 e6 d3 h5+ Kh7 g6+ Kg7 h6+ Kf6 e7 Kg5 e8Q g2 h7 f3 e5 b3 e6 b2 g7 f2 e7 f1B Ra7 Qd6 Nc3 b1R Nce2 Na6 b8N Nc5 b7 Rb5 Qd8 Ne4+ Ke3 d2 e8Q+ Ne7 Nh3+ Kh6 g8Q g1N Qg3 Nf3 Rh2 Re5 Nc1 Ne1 Nd7 Be2 b8R Ba6 Rab7 Nc8 Nd3 Qe7 Nb6 Ra7 Na8 Rg8 Qc1 d1Q Rf2 Qa4 Qd1 Qad7 h8Q+ Qh7 Nc5 Bd6 Nd3 Rf8 Rb4 Qe7 R8b7 Qd7 Qhg8 Qhe7 Qd5 Bb5 Qd4 Ra2 Rh2 Ba6 Rg2 Bg4 Rd2 Be2 Rc2 Ng2+
K6n/1bB2NN1/p1kN1N2/1qP1rn2/r2nnpBb/1QB1Q3/5br1/1N2Q3 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 g5 axb5 e5 fxe5 Nc6 Ra3 Nb8 h4 Nc6 g4 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Rh2 Rh6 Rg2 Rh8 Rg4 hxg4 Kf2 d5 c4 Kd7 e4 f5 b6 f3 e6+ Kd6 h5 a6 g6 f4 g7 d3 c5+ Kc6 b7 d4 e7 d2 e8Q+ Bd7 h6 d3 e5 Be7 e6 Qa5 b5+ Kc7 h7 Bg5 e7 Nc6 Bb2 Bc8 Ne2 Nd4 Qe1 d1R Bc3 d2 Bh3 Nh6 g8N Bh4+ Ng3 Nf7 Nf6 Rg8 b8B+ Kb7 b6 Nh8 Bd6 Qb5 Bc7 Rg5 Qe3 Re5 Qe1 Rb8 Qe3 Rg1 Qe1 Bg5 Nf5 Rg3 Ng7 Bh4 Qh5 Kc6 e8N Rb7 Nd6 Rb8 Qf5 Rb7 Qd3 d1N+ Kf1 Ne3+ Kf2 Nef5 Qde3 Ng6 h8N Rb8 Nhf7 Nh8 Bf1 Rb7 Be2 Rg2+ Kf1 Rb8 b7 g3 Nd5 f2 Nf6 Ra8 b8Q Ra7 Ng5 Rb7 Ngf7 Qa4 Bh5 Rb4 Bg4 Rc4 Qb2 Qb5 Qc2 Ra4+ Qcd3 Ne6 Ke2 f1N+ Kf3 Rh2 Qc2 g2 Qb2 g1B Qb3 Bgf2 Qb2 Rd5 Qb3 Ned4+ Ke4 Rg2 Qc2 Qb2 Qb3 Re5+ Kd3 Ra2 Kc4 Nd2+ Kb4 Ne4 Kc4 Qe2+ Kb4 Rd2 Ka5 Ra2+ Qa3 Rb2 Qa2 Rb4 Qb3 Rc4 Nfh5 Kd7 Kb6 Ra4 Ka7 Qb5 Nf6+ Kc6 Ka8 Bb7+
2BQB3/2b1NN2/qBK2QrQ/1p3br1/1b1Nbnn1/3Q1qkp/2P5/1Q4n1 w - - 0 1 legal: proof: d4 f5 e4 g5 exf5 a5 h4 c5 dxc5 Nc6 b4 axb4 a3 Nb8 h5 Bh6 Qf3 Bg7 Qd1 Bf8 g4 h6 a4 Bg7 Rh4 Bf8 Ra3 Rh7 Rg3 gxh4 g5 Rh8 g6 Rh7 Rg2 Rh8 Rg5 hxg5 Kd2 b5 Kd3 d5 Kd4 Kd7 f4 e5+ Kd3 g4 a5 h3 g7 g3 a6 g2 c6+ Kd6 c7 b3 h6 b2 h7 e4+ Kd4 e3 f6 e2 f5 e1B f7 Bb4 a7 Nf6 g8Q Nbd7 Bd3 Ng4 f6 Nb6 Qg6 Rg8 h8N Bf5 Be3 Qc8 Nc3 b1Q Nf3 Qb3 Qb1 Qa6 c8B g1N Qh7 Rb8 a8Q Rg6 Be4 Be7 f8Q Rg5 Qfh6 Bd8 Bf2 Bc7 f7+ Rg6 Nh4 Qba3 Ne2 Qf3 Bd3 Nd7 Be4 Ndf6 Be3 Rg5 N4g6 Rb6 Ne7 Rc6 f8Q Rb6 Kd3 Ke5 Nd4 Rd6 Qd8 Re6 Qc6 Rd6 Ne2 d4 Qc3 Nd5 Qf7 Bd7 Bg6 Rf6 Qfh7 Re6 Be8 Reg6 Kd2 Bf5 Nf7+ Ke4 Qh8 d3 Bb6 Qa3 Q8h7 Qa6 Nd4 Kf4 Q7g7 Kg3 Qf6 Nh2 Kc1 d2+ Kb2 d1B Kb3 Ng4 Qd3 Qe3 Nd6 Bf3 Nf7 Ba5 Ka3 B3e4 Kb3 Qf3 Ka3 Be1+ Kb3 Nc3 Kb4 Nd5+ Kc5 Bb4+ Kc6 Nf4+
r7/1Q4N1/5p2/nN2Q2Q/k1np1B2/bqQ3N1/b1R1QPr1/r1q1QKbb w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 h4 Bd6 h5 Bf8 g4 Bh6 Rh4 gxh4 g5 Nf6 g6 Na6 Bh3 Ng8 Bf5 Bf8 g7 Nb8 Bg6 hxg6 Ra3 Qf6 Rh3 Qb6 Rh1 Qd8 e4 d5 c4 Kd7 e5 a5 h6 f6 b6 Kc6 e6 g5 h7 d3 b7 h3 e7 d2+ Kf1 g4 e8N d4 Na3 h2 Qc2 g3 Nb5 a4 Ne2 Ne7 g8Q a3 Ng7 Nf5 Qe6+ Nd6 Qd3 Rg8 h8Q a2 Qh5 a1R Rg1 d1B Bf4 h1Q Qd2 Be7 Qe1 Bb3 Qe3 Ba2 Qee5 Nd7 b8Q Qb6 Qe3 Nb7 Qbe5 Na5 Qc3 Kb7 c6+ Ka6 c7 Bb7 c8Q Ba3 c5 Qe6 c6 Qb3 c7 Nb6 Qb8 Nbc4 c8Q Qc6 Qce8 Qc7 Rh1 g2+ Kg1 Kb6 Ng3 Qc6 Qhe2 Qc5 Q8h5 Kc6 Kh2 g1B+ Kg2 Kb6+ Kf1 Ka6 Rh3 Bh1 Ne4 Qc8 Rd3 Qc5 Rd2 Qc8 Rc2 Qc7 Nf5 Rg2 Ng7 Qc6 Ng3 Qc5 Qee8 Qg5 Qbc8+ Kb6 Qb7+ Kc5 Be5 Qc1 Qcf3 Qd2 Bf4+ Kb4 Qc3+ Ka4 Q8e5 Qc1
6BB/n2b1Bb1/rR2RQKp/kq2bB2/4pBp1/3p3B/nb1pPR2/7B w - - 0 1 legal: proof: g4 f5 a4 b5 h4 bxa4 h5 g6 Na3 Ba6 Nc4 Bb7 Ne5 Bc8 hxg6 Nf6 g5 Ng8 Ng4 fxg4 c4 c5 d4 a5 d5 Bb7 d6 Qc7 Nf3 Ra7 Nd4 cxd4 c5 Qd8 c6 Ba6 Qd3 Rc7 dxc7 Bb7 Qd1 Bc8 Kd2 e5 Kd3 d5 b4 h6 f4 a3 b5 a2 g7 a4 b6 a3 f5 Rh7 b7 Qd7 g6 Nf6 g8B Rh8 g7 Na6 b8R Rh7 Rh2 Ne4 f6 Nc3 Rb6 Nb5 Bf4 Na7 f7+ Ke7 Qc2 Kd6 Qb2 Kc5 Bh3 Qe8 Rb1 a1B Rf2 Bd7 c8B a2 c7 Rh8 Re6 Nb4+ Kd2 Kb5 Bb7 d3 Ke3 d2 c8B d4+ Ke4 d3 Kf5 Bd6 f8B Ka5 Bh1 e4 Bf7 Be5 g8B Bg7 Qf6 Be5 Bd6 a1B Kg6 Na2 Rb6 Bab2 Bc5 Qf8 Bce3 Qc5 Bd4 Qb5 Red6 Be8 Bf5 Bd7 Rdc6 Rh7 Re6 Rh8 Bh7 Re8 Bhg8 Ra8 Bg5 Bh2 Bge3 Nc6 Qd8 Bf6 Bg5 Ra6 Qe7 Bd6 Bf4 Bh8 Bg7 Na7 Qh4 Bde5 Bf6 Bg7 Qg5 Bf8 Bh8 Bfg7 Qd8 Bed4 Qf6 Be5
Q2RbKn1/3p2PQ/2n2R2/q2R4/1Bk1n1pn/1N6/pnb3QQ/3R2R1 w - - 0 1 legal: proof: b4 b5 d4 c5 a4 cxd4 axb5 a5 Ba3 a4 Bb2 Na6 Bc1 Nb8 e4 f5 Ra2 Ra5 bxa5 e6 Bc4 d3 Bd5 exd5 e5 d4 Ra3 Be7 Ra1 Bf8 g4 h5 f4 g5 Nd2 Nh6 Ne4 fxe4 f5 Ng8 f6 Rh6 Kd2 Rh7 Ra3 Re7 Rb3 Re6 Qe1 Rc6 Ra3 Rc4 Ra1 Rb4 Qe2 Rb1 Qd1 Be7 Qe1 Na6 Bb2 Nb8 Qe2 Re1 Qd1 Rf1 Bc1 Rf4 Ke1 Bf8 h4 Rf5 gxf5 Bc5 Nf3 Be7 Ng1 Bf8 Bb2 g4 Ba3 Bh6 Bc1 Bg5 hxg5 Bb7 Ra2 Ba6 Ra1 Bc8 Kd2 Kf7 c4 a3 e6+ Ke8 b6 h4 f7+ Ke7 f8R Kd6 g6 Kc5 g7 a2 f6 h3 e7 h2 e8R Nh6 a6 Nc6 b7 Nf7 b8Q Nd6 f7 Na7 Qc2 Bb7 Re5+ Bd5 Ne2 Ne8 Ba3+ Kc6 c5 Qe7 Rag1 Nf6 Bb4 Ng8 Nc1 Qd8 Nb3 Qa5 Rd8 Be6 f8R Bf7 Rd1 Be8 Rhg1 h1N Rd5 Nf2 Qh2 Kb5 Rf6 Nc6 Qb1 Kc4 a7 Nce7 a8Q e3+ Ke1 d2+ Ke2 Nc6 Qbh7 Ne4 Qg2 Kb5 Kd3 e2 Qb8+ Qb6 Qbh2 e1N+ Ke2 d3+ Ke3 Qa6 Kf4 Kc4 Kf5 Qa3 Q7h4 Qa5 Qh7 Na7 c6 Nf3 c7 Nc6 c8Q Nh4+ Kf4 Nh6 Qa8 Ng8 Rdf1 d1B Re1 Nd4 Ke5 d2 Ref1 Bc2 Rd1 Ng5 Kd6 Nc6 Rdf1 d1N Re1 Na7 Ref1 Nb2 Rfd1 Nh6 Ke7 Nc6+ Kf8 Ng8 Ra1 Ne4 Rac1 Nh6 Rcd1 Ng8
1kBNK3/1P2R1qQ/1qbN1n2/3Q4/1r1N2q1/bQ1b4/3Qqr2/2b1NNn1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 axb5 f5 cxd5 a4 exf5 a3 b6 Bg7 b5 Bxa1 Ne2 Bg7 Bb2 Bf8 Bg7 Bxg7 Ng1 Bf8 Ke2 Kd7 Kf3 c5 Ke4 h5 Ke5 e6 f4 a2 g4 a1B+ d4 h3 d6 c4 b7 h2 b6 c3 f6 h4 d5 h3 f7 Ra7 f5 Ne7 Kf6 e5 g5 e4 g6 e3 g7 e2 g8Q e1Q Nd2 Qe2 Ngf3 Ra4 Ne1 Ra2 Qh7 Nec6+ Kg6 c2 f6 Be7 f8Q c1Q Kf7 Qcc4 Qfg8 Qcg4 Bg2 Bc3 Nf1 Nd4 Qd2 Bb2 Be4 Bc1 Bf5+ Ne6 Rg1 h1B Rg3 h2 Re3 Qc7 Qg5 Kd8 d7 Nd4 Qgh5 Bf8 Re7 Nf3 Be6 Ng1 Q5f5 Na6 b8Q Nc5 b7 Qb6 Qg3 Rc2 Qb3 Kc7 d8N+ Kb8 d6 Bc6 d7 h1Q Ke8 Qh6 Nf7 Qhg7 Nd6 Rc4 f7 Rb4 Qfd5 Rg8 Qhh5 Rh8 Qhf5 Rh2 Qh7 Rf2 Bf5 Bb5 Be6 Bd3 d8N Nd7 Bf5 Rbf4 Re3 Be7 f8N Rb4 Nfe6 Rb5 N6f7 Bea3 Nd4 Rb4 Re7 Nf8 Nec2 Be6 Ne1 Nd7 Nd6 Bg8 Qa5 Bd5 Be6 Bc6 Qad5 Nf3 Bf5 Ng1 Qf7 Nf8+ Bd7 Bce4 Bc8 Nd7 Qfc4 Bc6 Qd5 Nf6#
6n1/1r1k1bn1/1QR5/QBQP3K/4brN1/2Qq3N/Nn1b2bN/n1nb1N2 w - - 0 1 illegal: No possible last move
2k5/pnN3N1/1bq1rQNK/Q3QB2/r1qP1N2/Qn1bqqq1/R7/3n2N1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b4 h6 Bb2 Qe7 Ra3 Qd8 Bf6 Rh7 Rf3 gxf3 g4 Be7 g5 Rh8 g6 Bf8 Bg5 hxg5 Kf2 Kd7 d4 f5 h4 c5 e4 g4 g7 c4 d6 c3 h5 c2 e5 c1Q b6 Na6 h6 Qe8 b7 Nf6 g8N Qc6 b8Q Nd5 b5 Nc3 h7 Nc5 b6 Ba6 b7 Bd3 Ne7 Rg8 h8Q Rg5 Qf6 g3+ Ke1 f2+ Kd2 f3 Ke3 g2 Kf4 Rg3 Qb3 Nd1 Ng6 Qe7 Be2 f1N Rh2 f2 Qa3 Nd2 Bg4 f1Q+ Kg5 Ndb3 Nc3 Qff3 Nce2 Qe6 Kh5 f4 Kg5 Be7 Kh6 Bd8 Bf5 Bb6 Qbh8 Rg8 b8N+ Kc8 Na6 Nb7 Nc7 Re8 Qhg7 Qe3 Qge7 f3+ Nef4 f2 d7+ Kb8 Qeg7 Qec4 e6 f1Q e7 Qff3 Qe5 Rg5 Qea5 Rg3 d8N Rg5 Nde6 Kc8 Qf6 Rg3 Nh3 g1Q Ra2 Qgf2 Ng1 Rg5 Qa6 Q2g3 Q6a5 Rd8 Ng7+ Rd7 Be4 Rd6 Bf5+ Re6 e8Q+ Nd8 Qee7 Nb7 Bh3 Rb5 Bf5 Rb4 Qfe5 Ra4 Qh4 Qee4 Qhf6 Qee3
1Q2r1RQ/qn1kN3/r7/P4pQ1/4N2b/Knp1Q3/2N2N2/qqb1nBNb w - - 0 1 illegal: No possible last move, all moves rejected
bq1N3r/1QNK1B1q/p2rN3/4k3/4nbq1/2NQP1Q1/1p2RQr1/1n3N1q w - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 a4 Qd7 b4 Qb5 Ba3 Qc4 b5 Qe4 Bb4 axb4 a5 Qe6 a6 Qd6 a7 Qd8 Ra6 bxa6 Kf2 Ke7 Kf3 Kf6 Ke4 c5 h4 g5 d4 c4 d6 f3 Kd5 b3 e3 b2 d7 f2 h6 c3 h7 c2 h5 c1Q h6 g4 b6 g3 b7 g2 Nf3 g1Q Qd3 Bd6 Nc3 Qc2 Rh2 Qg4 Nd2 Nc6 b8Q Na5 Qb7 Nc4 Kc6 Na3 d5 Bf4 d6 Ke5 Bh3 f1Q Re2 Qfb1 Nf1 f5 Bg2 Qf8 d8N Nf6 d7 Ne4 Ne6 Qe1 d8N Nb1 Kc7 Bd7 Bf3 Bc6 Bh1 Rb8 a8N Qeh4 Bg2 Qh1 Bh3 Bd5 Kd7 Rc8 Bg2 Rc6 Nac7 Rb6 Qb8 Ba8 Qb7 Nd6 Bd5 Ne4 Nd4 Qb4 Bf7 Rc6 N4e6 Qb6 Qc8 Qb8 Qb7 Rd6+ Ke7 Rg8 h8Q+ Rg7 Qg8 Rh7 Qg5 Rh8 Re1 Qch2 Re2 Qhh5 Qh4 Qhg6 Qf2 Qh7 Ng7 Bg3 Nge6 f4 Rc2 f3 Re2 Bf4 Qg3 Qhg6 h7 f2 Nd1 Rg8 h8Q+ Rg7 Qe8 Qgh7 Nc3 Rg8 Qf8 Rh8 Nd2 f1R Ke8 Rc6 Kd7 Rg1 Nf1 Rb6 Qe7 Rc6 Qeh4 Rg2 Qf2 Rb6 Qhg3 Rd6+
NQb2r2/1p2QP2/nq1NQ2Q/bp5Q/k3b1B1/N3p3/rq1rN2R/n1K5 w - - 0 1 legal: proof: b4 f5 e4 g5 exf5 d5 c4 a6 cxd5 Nc6 f4 Be6 b5 axb5 f6 Nb8 f5 Bd7 a3 Bc8 g4 h6 a4 Ra5 Ra3 Ra6 Rf3 Ra8 Ba3 Bd7 Bd6 Bc8 Bf4 Bg7 Rg3 gxf4 g5 Bf8 g6 Na6 Rg2 Nb8 Rg5 hxg5 d4 Kd7 Kd2 c5 h4 e5 d6 Kc6 a5 c4 d5+ Kc5 h5 Kb4 g7 c3+ Kc1 f3 a6 e4 f7 c2 f6 g4 h6 g3 d7 f2 d6 e3 a7 g2 h7 Ka5 Be2 f1B Bg4 Bd3 Na3 Na6 Ne2 g1R Rh2 Ne7 g8Q Qb6 d8N Ka4 d7 Be4 Qg6 Bg7 f8Q Nd5 Nf7 Ndb4 d8Q Rg2 Qfe7 Rf8 Nd6 Rf2 f7 Bc3 h8Q Rg2 Ng3 Rd2 Qdd7 Nc6 Qgg8 Nd4 Qde6 Ba5 Qhh6 Nb3+ Kb2 Bf3 Ne2 Na1 Kc1 Be4 Qh1 Bg6 Qhd5 Be4 Qdh5 Bd7 Qgg5 Rac8 Qge5 Qd4 a8N Qb6 Nf5 Rc7 Qef4 Bc8 Kb2 Rc3 Qb8 Rcd3 Nd6 Rc3 Ka2 c1Q+ Nc2 Qa3+ Kb1 Qa2+ Kc1 Ra3 Rf2 Qb3 Rh2 Ra2 Na3 Qb2#
r6r/Q1q5/nQ5N/Pr1B3Q/Rb1NK2p/2NQr1QN/p1n4p/1n3b1k w - - 0 1 legal: proof: e4 g5 h4 gxh4 b4 b5 a4 f5 exf5 Bb7 a5 Bc8 Ra4 bxa4 c4 d5 cxd5 Nd7 b5 Ba6 b6 Nc5 Ba3 Bc8 b7 Nd7 Bc5 Nb8 Bb6 axb6 Ke2 Kd7 Ke3 Kd6 d4 h5 f4 e5 g4 c5 f6 e4 f7 b5 f5 c4 f6 h3 g5 h4 g6 b4 g7 a3 Qa4 c3 Qd1 h2 Nh3 b3 Bg2 c2 Nc3 c1R Qh5 Nh6 g8N Na6 b8Q+ Qc7 Qa7 b2 Rd1 Be7 f8N b1N f7 a2 Ne6 Nf5+ Kf4 e3 f8Q e2 Nh6 e1R Qg7 Re2 Qg3 Re3 Rd2 Rf3+ Ke4+ Kd7 d6 Kc6 d7 Ne3 d8Q Bb4 Rb2 Nc2 Rb3 Rcf1 Ra3 Rf5 Ra4 Rb5 Bh1 Bd7 Qdb8 Rf6 Qd3 Rf3 d5+ Kd6 Nd4 Bc8 Ng5 Bh3 Qg8 Bg2 Nh3 Bf1 Qgb8 Ke7 d6+ Kf6 Qhc5 Kg6 d7 Kf6 d8Q+ Kg6 Nhf5 Kh5 Qdd6 Kg4 Qdb6 Qb7+ Qd5 Qc7 Nh6+ Kg3 Bg2 Rc5 Qh5 Rb5 Nf4 Kf2 Qg8 Kg1 Qg3 Rc5 Bh3+ Kh1 Be6 Rf5 Nh3 Rb5 Bd5 Re3+
1N1N2K1/q1N1pB2/4n3/nrN4B/2P4r/k3Nb2/2rNpN2/n2r1QQr w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 f5 b4 d5 e3 g6 dxc5 d4 Ra6 d3 Re6 Bg7 Re4 Bd4 exd4 fxe4 f4 h6 h4 g5 g4 Nd7 f5 Nb8 Bf4 Qc7 Rh2 Qd7 Rg2 gxf4 g5 Qc7 g6 Qd8 Rg5 hxg5 Kf2 Kd7 c4 a5 b6 Kc6 f6 f3 Ke3 g4 Kf4 e3 Kg5 f2 g7 d2 Kg6 a4 Kf7 g3 h5 g2 h6 a3 b5+ Kb7 d5 a2 h7 a1N d6 Bf5 c6+ Kc8 c7 Kd7 c8N Na6 b7 Nc7 b6 Kc6 b8N+ Kc5 b7 Kb4 d7 Nb3 Nh3 g1R Nb6 Rh1 Nd5+ Ka4 Be2 f1R Nf2 Be4 Na6 Ne6 b8N Qa5 d8N Bf3 Nac7 Qa7 Qe1 d1R Nd2 Rfg1 Qf1 Rg2 Qg1 Rg5 Nb7 Ka3 Nc5 Ned4 Kf8 Na5 f7 Nf6+ g8B Rgh5 Kg7 Nc2 f8Q Nd7 Qf5 R1h4 Bf7 Nf8 Qh3 Na1 Qhf1 Bh1 Bg4 e2 Ne3 Rf5 Bgh5 Ne6+ Kh6 Bf3 Kg6 Rd8 h8N Rd3 Kh7 Rc3 Kg8 Rc2 Bfg6 Rh1 Nf7 Rf4 Nd8 Rfh4 Nbc6 Rb8 Bf7 Rb7 Nb8 Rb5
Q2rqQQ1/b1B3P1/1pr1nb2/1b4Q1/Q5Nn/1B2Nk2/1qn4b/1r2Q1QK w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 h6 a4 Nc6 h4 Nb8 Ra3 Rh7 Rf3 Rh8 Rf4 gxf4 g5 h5 Rh3 Qd6 Rg3 Qd8 Rg4 hxg4 Kf2 Kf7 Kg2 c5 d4 e5 d6 g3 d7 e4 h5 b3 a5 b2 a6 e3 h6 c4 a7 f3+ Kh1 g2+ Kh2 c3 d5 c2 d6 f2 h7 e2 Nc3 e1N Nf3 g1B+ Kh1 b1R Bf4 c1B Nh2 Be7 Ng4 Be3 Nd5 Na6 Qa4 Nc5 Bc4 f1Q Bb3 Qe8 d8Q Ne6 d7 Nc2 Qb6 Qf2 d8Q Nh6 Bc7 Bd7 Qba5 Rb8 a8Q Rc8 Qe1 Ba7 Nde3 b6 Qg2 Rf8 h8Q Bh2 Qgg1 Bb5 Qd5 Qd2 Qa8 Qc3 Qd5 Rg8 Qdg2 Qb2 g6+ Kf8 f7 Bf6 g7+ Ke7 f8Q+ Kd7 Qgg3 Kc6 Qfa3 Rf8 Qg8 Rd8 Nc4 Kd5 Q3e3 Rf7 Qg5 Rfd7 Qa1 Rd6 Q1a3 Rc6 Qa1 Bfe5 f6 Nf5 f7 Bd4 Nce3+ Ke4 f8Q Kf3 Q1a3 Bf6 Qa2 Nh4 Qa1 Bb8 Qa8 Ba7 Qaa5 Rb8 Qa4 Rd8
br2Q2N/rQP1bb2/1qK3RN/2bN4/n1n1p2N/2N4n/N1Rq1N1p/4k3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 Bb7 h5 Bc8 g4 Qc7 Bc4 Bg7 Bf7+ Kd8 Bg6 Qb6 Bf4 Bh6 Bg3 Bf8 Bh4 gxh4 g5 Qc7 Be8 Qb6 g6 Qc7 g7 Qb6 Bg6 hxg6 Ra3 Ke8 Ra1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 Ke3 c4 Kf2 b4 a5 b6 d5 b5 a4 h6 a3 b7 h3 b6 h2 h7 a2 f6 d3 f7 g5 f5 d2 f6 g4 Qf3+ Ke1 Nc3+ d1Q Rc1 a1B Rc2 Na6+ Kc6 e5 b8Q d4 b7 g3 c5 g2 Nh3+ g1N Nf2 Nh6 g8N Ng4 Nh6 Be7 f8N d3 f7 d2 Nd7 Ra7 f8N Ne3 Nf6 Be6 Nfd5 Nc4 Ng6 Bf7 Nh4 Rf8 h8N Qb6+ Kd7 Qc1 c6 d1B c7 Qd2 Qe8 Bc5 Qg2 Bf3 b8N Be7 Nc6 Nc5+ Kc8 Na4 Kd7 Bb2 Nb4 Ba3 Nba2 Be4 Qf3 Bac5 Qg2 Bd3 Qf3 Bf1 Qg2 Nh3 Rg1 Rg8 Qf3 Rf8 Rg6 Bg2 Qa8 Rb8 Qb7 Bg8 Qf8 Bf7 Qe8 Qf4 Qa6 Be4 Nf6 Ba8 Nfd5 e4 Qb7 Qb1 Kc6 Qd2 Qd8 Qb4 Qe8 Qb6+
3b2Rq/2R2b1P/2B1B3/r1q3R1/bk3B1B/1r1prn2/2R2Rpb/K1Q1nB2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 g4 Bb7 f5 Ba6 Nc3 Bc8 Nh3 h6 Nf4 gxf4 Ne4 h5 g5 Qb6 Nf2 Qd8 Ng4 hxg4 Kd2 e5 h4 a5 c4 d5 Kc2 Kd7 Kb1 Kd6 b4 f3 g6 f2 b6 g3 f7 d3 f6 g2 b5 Kc5 g7 d4 h5 d2 b7 e4 b6 d3 h6 e3 h7 a4 Qb3 d1B Rh3 e2 Bg5 e1R Qb2 a3 Rh5 Nh6 g8B Ba4+ Qc1 Nf5 Bh4 Nc6 b8B Be7 f8R Kb4 f7 Nfd4 b7 Re3 c5 Ne5 c6 Ra5 c7 Ndf3 Rg5 Be6 c8B Ne1 Ra2 N5f3 Rc2 a2+ Ka1 Qd6 Rc7 Qc5 Bd7 Bd8 Bc6 Bd5 Re8 Bdb3 f8R Bf7 Be2 f1Q Re4+ Kb3 Rc4 Qg1 Rc2 Kb4 Bf1 Qh1 Ba7 Qh3 Bb8 Qc8 Kb2 a1B+ Kb1 Be8 Be6 Be5 Rff5 Bh2 Ka1 Bf7 Rf6 Ng1 Rff2 Rf8 Ba7 Ngf3 b8R+ Qb7 Rbc8 Qa8 Bb8 Re8 Ra7 Re7 Bf4 Rd7 Rac7 Rd4 Rfd2 Rc4 Rf2 Rc3 Rg8 Rb3 Rg5 Be7 Rh8 Qf8 Rhg8 Bd8 R8g6 Qh8+ Rg7 Rc3 Rg8 Rb3+
rqN1N3/3Q2nR/8/2P1bpkp/3nr1bR/r3NRNp/1p1R1RN1/5Kq1 w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 g5 dxc5 f5 h3 f4 h4 gxh4 e4 e6 Be2 Ne7 Bg4 Bg7 Bf5 Bf8 Be3 fxe3 f4 Ng6 Bg4 Ne7 f5 Ng8 f6 Be7 Bh3 Bf8 Bf5 exf5 c4 Kf7 a4 Kg6 g4 b5 a6 d5 a5 h5 a7 e2 a6 d4 g5 d3 f7 b4 e5 b3 e6 b2 c6 Bb7 c5 Qd5 c7 Qg2 c8N Bf3 e7 Nh6 e8N Bc6 Nc3 Rh7 Nd5 Qh2 Ne3 Bg7 f8N+ Kf7 Ne6 Kg6 Ra3 Bf3 Nf4+ Kf7 Qd2 Ng4 Nfg2 Be5 g6+ Ke6 g7 h3 g8R Nf6 Rg4 Nc6 Rh4 Nd4 Kf2 e1R Ne2 Ra1 Ng3 Bg4 Rf1 Re7 Qd1 d2 Rb3 Rb8 a8R Ra3 Ra7 Ra8 Rab7 Kf7 a7 Kg6 Rc7 Re6 Rh7 Kg5 Rd3 Re7 Qa4 d1Q Qd7 Qc2+ Rd2 Qb3 Ke1 Qb8 Rff2 Nd5 Kf1 Nf4 Rf3 Nfe6 Rdf2 Qb6 Qd8 Ng7 Qd7 Rb8 a8R Re6 Ra7 Ra8 Rc7 Qb8 Ra7 Bd6 Ra6 Re4 Rb6 Be5 Rd6 Nc2 Rd3 Nd4 Rdd2 Qg1+
b1b1B2Q/1b2NK1q/1rn1QN2/4N2P/k1N5/2bq1rr1/1nnN3Q/q1B1N3 w - - 0 1 legal: proof: f4 h5 a4 d5 c4 g5 cxd5 gxf4 g4 b5 axb5 e5 b4 Be6 h4 Bc8 g5 e4 Rh3 Kd7 Rf3 Ke8 Raa3 Na6 Rg3 Nb8 Raf3 exf3 Rg4 hxg4 Kf2 Kd7 d4 a5 e4 f5 e5 c5 h5 g3+ Ke1 a4 Kd2 f2 Kd3 f3 Kc4 a3 d6 g2 Kd5 f4 g6 c4 g7 a2 b6 a1Q b5 c3 b7 c2 b6 Qe7 Qe1 Na6 b8Q Rh6 b7 Ra7 Bd3 f1Q Bg6 f2 Nf3 g1R Nbd2 Qd3 Qe2 f1B Ne1 f3 e6+ Kd8 d7 f2 Qbe5 Rg3 b8Q Bg2+ Q2e4 f1B Be8 Rf3 Qh2 Nb4+ Ke5 Ra2 Qg4 Rb2 d5 Rg6 Qa8 Kc7 d8N Kb6 d6 Be2 d7 Kb5 Nb7 Bh1 Qgh3 Rgg3 Na5 Ka4 d8N+ Qed7 Nf7 Ne7 Qf5 Nec6+ Kf6 Bf1 g8N Bfg2 Ne5 Qh7 e7 Bg7+ Kf7 Rb3 Ba3 c1N Qb8 Rb2 Nac4 Nc2 Qf6 Rb4 Qd6 Rb6 Qe6 Qd7 Bb2 Nd3 Bc1 Nb2 Qff5 Re3 Qff6 Qdd3 Qh6 Qhe4 Qh8 Qh7 Bd7 Be4 e8N Ref3+ Nef6 Bf8+ Ke8 Bb4 Ne7 Bc3 Kf8 Bf5 Be8 Bb7 Qeg8 Bd7 Qe6 Bdc8 Qg7 Ba8 Nb1 Rf2 Qh8 Be4 Qeg8 Rff3 Qe6 Bd5 Nbd2 Be4 Bg6 Nb8 Bf7 Beb7 Bg6 Nc6 Be8 Qhe4 Kf7 Qh7+
K3Nb2/4p1RN/1nN2P2/1kn5/3q2Q1/r4pNr/bn1Q2qq/Q2RN1Nr w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Bb7 b3 Bc8 Bh3 Bb7 Bb2 Bc8 f5 h6 Be5 h5 Bf4 gxf4 g5 Nh6 Bg4 hxg4 Ra4 Ng8 Ra3 Rh6 Ra1 Rh8 Ke2 Kd7 h4 a5 d4 c5 b6 c4 d6 Kc6 h5 a4 d7 e3 h6 a3 b4 g3 Kf3 a2 Ke4 g2 g6 c3 d5+ Kb5 b7 c2 d6 c1R Kd5 e2 h7 e1Q g7 Rc7 Na3+ Kb6 b5 Qg3 Nc2 Qg6 Qg4 f3 Ne1 Qde8 d8Q Bd7 Rd1 Na6 b8N a1Q Nc6 Rb8 Nd4 Qa4 Nde2 Nc5 Ng3 Nh6 g8N Nf7 Nf6 Ne5 Rh4 Ka5 b6 Kb5 b7 Ra8 b8N Ned3 Na6 Nb2 Rh6 Qh5 Rg6 Qh2 Rg7 Bc8 d7 Qg6 Qe8 Raa7 d8N+ Bd7 Nc6 Be6+ Ke5 Bd5 Qd7 Ba2 Qd2 Rd7 Qh5 Rd3 Qg4 Rb3 Kd5 Qf4 Nab8 Raa3 Ne8 Qb4 Nd7 Qa4 Nh3 g1N Ndf6 Ne2 Ng1 Nc3+ Ke5 Rg8 h8Q Qa7 Nh7 N3a4 Kd5 Qb6 f6 Qc2 Qc1 Qcg2 Qa1 Qa7 Ng5 Qb6 Qh6 Rh8 Nh7 Qa7 Qd2 Qb6 Ng5 Rh3 Nh7 Rc3+ Kd4 Rc1 Ke5 Nb3 Ke6 Qe3+ Kd7 Qd4+ Kc7 Nbc5 Kb8 Rcc3 Ka8 Re3 Nd3 Re1 N1e2 Rg1 Ne1 Rh1 Ng1 Nb6+
3R4/3brq2/2ppN2N/2b1nQ2/3q3k/1Q2b1rP/1QqRKp1n/Q1RQQ3 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 Kd7 cxd5 g5 f4 gxf4 d6 Ke6 d7 c6 Nf3 Kf6 Ng1 Qb6 d8R Ke6 d4 h5 g4 Rh7 d5+ Kf6 d6 Qe3 d7 Qe6 Bd2 Rh8 Bh3 Qe3 Bb4 Qb6 Bd6 exd6 g5+ Ke7 Bg4 hxg4 e4 f5 b4 a5 g6 Kf6 h3 Kg5 e5 g3 e6 a4 g7 a3 e7 g2 e8Q a2 Rh2 f3 Na3 f2+ Ke2 f4 Nf3+ Kf6 Nc4 g1B Ng5 Qd4 b6 Nh6 g8Q Ra3 b7 Ng4 b5 Rg3 b6 Bh6 Ne3 Rh7 Qgb3 Re7 Rc1 a1Q Ne6 Qac3 Nf5 Qcc5 Rg2 Nh2 Qb2 Bg5 Nh6 Qf5 Qf8+ Kg6 Qa2 Kh5 Qa1 Kh4 Qf7 Qb1 Qf5 Qb3 Re8 Qbc3 d8Q Nd7 b8Q Ne5 b7 Bd7 Qda5 Qb3 Rd8 Qba4 Qdd3 Qac4 Qe1 f1Q+ Kd1 f3 Rd2 B1e3 Qb3 f2 Qba8 Bgf4 b8Q Qfd3 Q8a4 Qcd5 Qbb2 Qc2+ Ke2 Bg5 Q8b3 Bgf4 Ng5 Qf7 Ne6 Qd5 Qab1 Bc5 Qaa1 Qd4 Qd1 Be3 Qe1 Qcc3 Qbd1 Qb3 Qb1a2 Qbc3 Qab3 Qc2
1B1q2K1/3r1pQ1/Qn4n1/1bQ1B1Q1/Q1p1r3/R1Pk2n1/pb1rRR2/Qq6 w - - 0 1 legal: proof: a4 d5 f4 e5 fxe5 b5 axb5 d4 c3 Nc6 g3 Nh6 Bg2 Ng8 Be4 Nb8 Bc2 d3 g4 dxc2 Nh3 g6 Nf4 g5 Na3 h6 Nc4 gxf4 g5 h5 Ne3 Be7 Ng4 hxg4 Ra4 Bc5 Ra1 Bf8 Kf2 Ke7 d4 Ke6 e4 c5 b4 a5 h4 g3+ Kf3 g2 Kg4 g1N h5 f3 b6 c4 b5 f2 b7 f1Q d5+ Kd7 b6 a4 d6 Kc6+ e6 Kb5 g6 a3 h6 Nd7 Kh5 Qf2 b8Q Qf4 g7 Qdf6 e5 Qe7 b7 Nh3 h7 Ra7 Qc7 Ra8 b8B Nf2 Rf1 Qd4 Qc5+ Ka4 Bf4 Nh1 Rf2 Qd8 e7 Kb3 e8R Ba6 e6 Bb5 e7 Qe4 Be5 Nb6 d7 Ra7 Ra2 Rb7 Qa1 c1R Rae2 a2 Kg5 Nh6 Kf6 Rd1 g8Q Qb1 Qg6 Rd2 Qg7 Rg8 h8Q Nf5 Qhh6 Kc2 Qhg6 Kd3 Qg5 Qc8 d8Q+ Rd7 Qdc7 Nh4 Qa7 Ng6 Qa6 Qc7 Rd8 Ng3 e8Q Rh8 Rc8 Rh4 Rd8 Rdd4 Rd7 Qc8 Ra7 Rhe4 Qec6 Rd7 Qa4 Na8 Qca6 Qe8 Qh8 Be7+ Kg7 Qd8 Qhh6 Bf8+ Kg8 Nb6 Qg7 Qc7 Qc6 Ba3 Qc5 Bb2 Qd1 Ba3 Qc8 Bc1 Ra3 Bb2 Qa4 Nd5 Qb7 Nb6 Qba6 Qd8+
n1n3b1/2N5/1BNQ2K1/n2Nbr2/P5B1/2qBr1b1/1b2NbkB/1n1NQr2 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 h6 a4 Nc6 h4 Nb8 Ra3 Rh7 Rf3 Rh8 Rf4 gxf4 g5 h5 Rh3 Qd6 Rg3 Qd8 Rg4 hxg4 Ke2 Kf7 Kd3 b5 Ke4 c5 d4 e5 h5 c4 d6 f3 d5 c3 h6 f2 d7 g3 h7 g2 d6 c2 Nf3 g1B Ne1 b3 Qf3 b2 Qg4 b4 Bh3 f1R Nd3 b3 Nf2 Nc6 Qe2 Bg7 Qe1 Na5 Bg4 Qc7 d8B Be6 d7 Qc3 Nd1 Bf2 Bc7 Rf8 Bb6 Ne7 Bf4 c1B Bh2 Rhg8 h8Q Nc8 Qh3 Re8 Qd3 Rgf8 Qd6 Bg3 Nd2 b1N Nf3 b2 Ng1 Na3 Ne2 b1N d8N+ Kg8 g6 Bb2 Nc6 Nb5 f7+ Kh8 f6 Nc7 Qd7 Na8 Qd3 Bf2 Qd6 Bd5+ Kf5 e4 Kg5 e3 Kf5 Bh6 g7+ Kh7 Qe7 Bf4 g8B+ Kh6 Qd6 Be5 Bh7 Rh8 f8N Bg8 f7+ Re6 Ned4 e2 Ng6 Re8 f8N Bfg3+ Qf2 e1B Nf4+ Re6 Qe2 Bef2 Bg6 Rh7 Nd5 Rg7 Qe1 Rf7+ Nf6 Re8 Nfe6 Ree7 Nc7 Rf8 Ke4 Kg5 Ne2 Kh4 Nfd5 Rf3 Bh7 Re3+ Kf5 Rf7+ Kg6 Rf5 Bh5 Kh3 Bg4+ Kg2 Kh6 Rg5 Bd3 Rh5+ Kg6 Rf5
b1Kbqn2/b3Nr1Q/QN1k3n/2nN2R1/P1q1n1rQ/2N1b2Q/2Q5/3rR3 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 g5 e5 d5 cxd5 f6 exf6 Ra7 Qg4 Ra6 Qd1 Ra8 g4 Bf5 f4 Bc8 Bh3 Qd7 Bb2 Qd8 f5 h6 Be5 h5 Bf4 gxf4 g5 Nd7 Bg4 hxg4 Qf3 Nb8 Qe2 Ra4 Qd1 Ra8 Ke2 Kd7 Kd3 e5 Ke4 c5 h4 b5 d4 b3 a4 g3 h5 b4 h6 g2 h7 c4 f7 b2 f6 f3 Kf5 f2 g6 c3 d6 c2 g7 c1B d5 b3 Nh3 g1B Nf4 f1Q Qc2 e4 Nc3 b1R Rh5 b2 Rg5 Be7 f8Q e3 Qf7 e2 Qh5 e1N f7 Qe8 f8N+ Kd8+ d7 Kc7 Ke6 Nd3 Qhh2 Ra7 Qh3 Bb7 d6+ Kc6 d8Q Bc5 d7 Ba8 Qa5 B1e3 d8Q Nd7 Rd5 Rc7 Re5 Ba7 Nfd5 Rc1 Rf5 b1N Qa6+ Kc5 Re5 Nd2 Rf5 Ne4 Rb1 Nh6 g8N Nf7 Ra1 Rb7 Re5 Qe2 Rh5 Rg1 Rf1 Rb1 Re1 Rg4 Rf5 Rd1 Qc7+ Bc6 Rg5 Qf1 Qcg3 Bd8+ Nge7 Ba8 Qgh4 Rg8 h8Q Nh6 Qh7 Rg7 Qhf2 Rf7 Qfg3 N7e5 Qgh4 Ng6 Nd7+ Kd4 N7b6 Kc5 Qch2 Qe2 Q2g2 Qa2 Qc2 Qc4 Qf3 Qh8 Kd7 Qe8+ Kc8 Nf8 Qfh3 Kd6+ Nc7 Ndc5 Nc7d5 Qe2 Qb5 Qd3 Qa6 Qc4
kb4n1/Pq1Rn2q/b2R1Br1/3r1BQR/2b2rp1/3n2B1/1rK1Q2R/5RB1 w - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 Be6 f5 Bd7 Nc3 Bc8 Nce2 h6 Nf4 gxf4 Nf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 h4 Kd7 a4 e5 d4 c5 Kd2 Kc7 h5 b5 d6+ Kb7 a5 b3 d5 b4 h6 f3 f7 b2 g6 b1R h7 c4 g7 c3+ Kc2 f2 f6 e4 d7 e3 d6 e2 Rh2 e1R Qe2 Qb6 d8R Rd1 d7 Nc6 Bg5 Bd6 f8B Rd5 f7 Bb8 Bc5 Ra6 f8B Ka8 Bf6 Qb7 Bfd6 Nce7 Bg3 Rb6 Bg2 f1B a6 Rb3 a7 Rb2+ Kc1 c2 Be4 b3 Bf5 Rb4 Bg1 Rf4 Rb1 Ra5 Kd2 c1N+ Kd1 Nd3 Rh5 Nh6 g8Q Rd5 Qg5 Rg8 h8R Rg6 Rh2 Nhg8 R8h5 Qc6 Rc1 Ba6 Ra1 Qb7 Rc1 Rb1 Kd2 b2 Kc2 Ra1 Rd1 Ra2 Rf8 Bc4 d8R Ba6 Rd6 b1Q+ Kc3 Rb2 Rfd8 Nc1 R8d7 Qe4 Qd2 Bfc4 Qe2 Nd3 Rf1 Qe6 Qf2 Qf7 Qe2 Rb6 Kd2 Qh7 Kc2 Rb2+
4NBnn/3Q3r/BQ1q2QB/3B1pQr/qbK5/2bN4/2kbPB2/2rr3b w - - 0 1 legal: proof: f4 h5 a4 d5 c4 g5 cxd5 gxf4 g4 b5 axb5 e5 b4 Be6 h4 Bc8 g5 e4 Rh3 Kd7 Rf3 Ke8 Raa3 Na6 Rg3 Nb8 Raf3 exf3 Rg4 hxg4 d4 Ke7 Kd2 Kd6 Kd3 f5 b6 c5 h5 a5 g6 g3 b5 a4 h6 f2 h7 g2 b7 a3 g7 a2 b6 a1B Nf3 g1B Ne1 f3 Na3 Nd7 b8B+ Qc7 b7 Bc3 Kc4 Ba1 Bh6 Ra6 Nd3 Bc3 Bg2 f1Q Ba7 f2 b8Q Bb7 Qe8 Ba8 Qc1 Qd1 Qg5 f1R Qeh5 Be3 Qhg6+ Ndf6 Bb6 Ne7 g8B Ra7 Be4 Bed2 Nb5+ Kd7 Bf7 Qd6 Nc7 Nfg8 Ne8 Rh1 Bf3 Rh5 Bh1 Ra1 Bg2 Qc2 Ba7 Rd1 Bb6 Qf6 d6 Bb7 Bgd5 Qa4+ Nb4 Ba8 Bb7 Qe5 Ba6 Bh1 Bd5 Qf6 Ba8 Ke6 d5+ Ke5 d7 Qd6 d8Q Nc6 Qd7 Nd8 Ba7 Nf7 Bb6 Qa1 Nd3+ Ke4 Kb5 c4 Bd4 Qa2 Bdg7 Be7 Bf8 Kd4 B8b7 Bb2 Ba8 Kc3 Bc6 Kc2 Bcb7 Qda3 d6 c3 Bg2 Qe6 Bd5 Qa5+ Kc4 Qa1 Qb7 Qa4+ Qb4 Qf6 d7 Qd6 d8Q Kb1 Qd7 c2 Nf4 c1R+ Kd3 Bc3+ Kc4 Kc2 Nd3 Bd2 Qe3 Qa5 Qbb6 Bbc3 Qf4 Qf6 Qfg5 Beb4 Bc5 Qa4 Bf2 Qd6 Bf8 Nf6 Bh6 Rf8 h8B Ng8 Be5 Nh8 Beg7 Rf7 Bf8 Rh7
QQ3B1n/2QBnr2/1b2rp1r/BRQ4b/4Q3/Rb2B2K/4kP2/2qr1bq1 w - - 0 1 legal: proof: g4 e5 c4 h5 a4 hxg4 d4 b5 axb5 d6 c5 Bb7 Nd2 Bc8 Nb3 Nf6 cxd6 Ng8 d5 Qf6 Nd4 exd4 Qd2 Qe7 Qd1 Qd8 e4 Kd7 h4 g5 b4 a5 h5 c5 h6 c4 e5 g3 h7 g4 b6 c3 b5 d3 b7 f6 b6 c2 Rb1 g2 Rh3 g3 Be2 a4 Bh6 c1R Nf3 a3 Nd2 g1Q+ Nf1 a2 Rb5 a1R Be3 Rc7 Qc1 Nc6 b8Q R8a6 b7 Nce7 Qa8 Nh6 b8Q Nf7 Bd1 Rca7 Qc5 d2+ Ke2 g2 Kf3 Qc7 Kg4 Rb1 Ba4 d1B+ Rf3 Bc2 Kh3 Rd1 Rg3 Bb3 e6+ Kd8 d7 Rb7 Qd6 Qc1 Qc5 Bh6 Rf3 Bf4 Rg3 Bc7 Rf3 Bb6 Rg3 Rg8 h8B Rg6 Bg7 Nh8 Bf8 Rba7 Qf4 Rh6+ Qh4 Nc6 e7+ Kc7 e8Q Rb7 Qe4 Rba7 Qh5 Bb7 Qcb4 Ne7 d8B+ Kd7 Qbc4 Kd6 Qcc8 Bc6 Qcb7 Be8 Qbb8+ Kd7 d6 Bg6 Qd4 Ke6 d7 Be8 Qhh4 Bh5 Qc5 Rb7 Bc7 Rba7 d8Q Rb7 Be5 Kf5 Qdc7 Rba7 Qhb4 Rb7 Qe1 Ke4 Bc3 Kd3 Ba5 Rba7 Qeb4 Ke2 Qbe4 Neg6 Qcc8 Rf7 Qc8c7 Ne7 Rb4 Ba7 Bd7 Re6 Rb5 Bb6 Rg5 Red6 Rd5 Re6 Rd3 Bc2 Ra3 Ba4 Qh7 Bb3 Qhe4 gxf1B+
1b2r3/2PBrNB1/N4nbr/pNB3q1/pN4Q1/bB2n3/1Q6/B2qnk1K w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 g5 f4 f5 exf5 Nc6 a4 bxa4 f6 Nb8 b4 h6 h4 Qc7 g4 Qa5 f5 Qd8 Ra3 Qa5 Rf3 Qd8 Rf4 gxf4 g5 h5 Rh2 Bb7 Rg2 Bc8 Rg4 hxg4 Kf2 Kf7 Kg2 d5 c4 a5 g6+ Ke8 f7+ Kd7 c6+ Kd6 f6 Ke5 c5 Ke4 c7 e5 b5 d4 h5 f3+ Kh1 g3 b6 d3 c6 d2 b7 Ke3 h6 Kf2 h7 e4 g7 e3 Nc3 e2 Nd5 e1N Bh3 Qd7 Qc2 Ne7 g8B Nf5 Ne2 d1Q Nd4+ Qd2 Bb2 Ne3 Nb5 Ba3 f8B Qd6 f7 Bf5 c8Q Bg6 c7 Nd7 b8N Nf6 Bd7 Kf1 Qc3 f2 Bg7 Qc5 f8B Qd1 Nb4 Qg5 N8a6 g2+ Kh2 g1B+ Kh1 Rb8 Bb3 Rb6 Bc5 Re8 h8N Rbe6 Qd4 R6e7 Bb6 Ke2 Bc5 f1R Bc3 Rf3 Qb7 Kf1 Ba1 Rg3 Qb2 Rg4 Nf7 Rh4+ Qh2 Rh6 Qe4 Nc4 Qg4 Bd4 Bd6 Ba7 Bc5 Ne3 Bb2 Bh5 Ba1 Bb8 Qb2 Bg6+
R1b2b2/1rp2n2/n4QnR/2rQp3/2P5/RRNq2KR/5r2/QrQ2Nkr w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 f6 e4 Be7 dxe5 Bc5 e6 Bf8 e5 fxe5 g4 g6 f4 g5 f5 h6 Bf4 gxf4 g5 h5 Bh3 Nc6 Bg4 hxg4 Qd2 Nb8 Qd3 Ba3 Qd1 Bf8 Kf2 Ke7 c4 a5 b4 d5 h4 Kd6 b6 a4 b7 d4 f6 a3 b5 Kc5 h5 a2 g6 d3 f7 Kd4 b6 f3 g7 d2 e7 Ra5 e8Q Rh6 Qea4 Ne7 g8Q Na6 b8R Rc5 b7 Ng6 Qc1 d1R Kg3 f2 Ra8 f1R b8R Rf2 Nd2 Ke3 Rh3 Qd3 Ne2 Rh1 Nc3 Rh8 Rb3 Rh6 Rab1 a1R Ra3 Rh8 Rbb8 Rb1 h6 Rb7 h7 Re1 Qa1 Reb1 Qd1 Ra5 Qc1 Rc5 Nd1+ Ke2+ Nf3 Kf1 Nc3+ Qd1 Nh2+ Kg1 Nf1 Qd3+ Qe3 Ra7 Rb4 Rb7 Rbb3 Nf4 Kh4 g3 Qd2 g2 Qc1 Bg7 f8Q Ng6+ Kh5 Bh6 Qf6 Bf8 Qge6 Rg8 Kg4 Rg7 h8R Rh7 Re3 Rh1 Rh6 Nh8 Rg6 Nf7 Nd2+ Kh2 Rf3 g1N Nf1+ Kg2 Rh6 Ne2 Rfh3 Kg1 Kh4 Nf4 Qd5 Qd2 Kg3 Ng6 Ra7 Qd1 Ra8 Qd3+
4B1bB/3B3Q/1pR1bn1b/k3BB1n/r1p2Q2/2r2pr1/KPQr1Q2/4qR2 w - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 a4 Qd6 Nc3 Qd7 Na2 Qd8 Nb4 axb4 Nf3 Qd7 Ne5 Qe7 Nc4 Qd8 Na3 bxa3 e4 Kd7 h4 f5 d4 c5 Kd2 Kc7 Kc3 Kb6 Kb3 g5 d6 f3 a5+ Kc6 h6 c4+ Ka2 Kb5 h7 f4 d5 b6 a6 f2 d7 g4 e5 g3 e6 f3 h5 g2 h6 g1R a7 Nf6 e7 Rgg8 e8B Ng4 d6 Nf6 Qc2 Qe7 d8Q+ Ka5 d7 Rg3 Bf4 Qe1 Bd3 f1B Be5 Nh5 Qg5 Bh3 d8Q Bhe6 Bf5 Nd7 Qf4 Ndf6 Qdd4 Bg8 Qdf2 Bce6 Rc1 Rd8 a8B Rd3 Bac6 Rb3 Rf1 Rb4 Rd1 Bg7 Rd6 Bf8 Qcc1 Bg7 Bcd7 Bf8 Kb1 Bg7 Rc6 a2+ Kc2 a1R Qd1 Ra2 Kb1 Ra3 Qdc1 Qe4+ Qcc2 Rc3 Ka2 Qe1 Rg1 Bgf7 Rf1 Rf8 h8Q Bg8 h7 Bh6 Qg7 Rf7 h8B Re7 Bc8 Rd7 Qh7 Rd2 Bcd7 Ra4+
1qK1R3/3p2RR/1k1N4/3b3R/2p3NN/Q3Pr2/rnQrp2N/1b2nrbN w - - 0 1 legal: proof: c4 a5 b4 f5 g4 b5 e3 h5 gxh5 f4 d4 f3 Be2 fxe2 Kd2 e6 Ba3 bxc4 b5 e5 Bb4 axb4 dxe5 Kf7 Qb3 Ke7 Qd1 Ke8 f4 g5 a4 c5 h4 g4 b6 c3+ Kd3 c4+ Kd4 g3 Kd5 b3 b7 b2 e6 g2 f5 c2 f6 c1R f7+ Ke7 h6 Na6 b8R Rh7 h5 Ra7 a5 Rb7 Nh3 g1R Nf2 Rhg7 h7 Rc2 h8R Rh7 h6 Rb3 Nd2 b1B Nf3 Nc5 a6 Qc7 a7 Kd8 a8Q Ra2 Qa3 Qa7 e7+ Kc7 Qdc1 Rc3 Qc2 Na4 Rb5 Bg7 f8N Be5 Ng6 Rf7 h7 Bh2 Nge5 Nh6 Rc5+ Kb7 Kd6 Ng4 e8N Kb6 Rf8 Rc1 h8N Nb2 Ng6 Bb7 Rh8 Ba8 Rc8 Bd5 Rh7 Rf4 Ke7 Rb3 Kd8 Rd3 Nd6 Rd2 Rg1 Rf5 Rg3 Rh1 Rgh3 Rhd1 Nh1 Nf2 R3h5 Nfd3 Ngh4 Re1 Ke7 Rc1 Re8 Rcd1 Kd8 Rf6 Qcc3 Bc2 Kc8 Rf5 Rc1 Bb1 Qc2 Rg1 Rf1 Ne1 Rf2 Rf1 Rg2 Rf7 Rgg7 Bg1 Nh2 R7f3 Neg4 Qb8+
1n4NN/K5n1/qp2Nr2/1r1p1p2/1Q3P1Q/NpR1n3/1nbQRnQ1/k6N w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 d4 c6 d6 Ra6 d5 Qa5 d7+ Kd8 Kd2 Ra8 Ke1 Kc7 d8N Kd7 d6 Ke8 Bf4 Qa7 Bc1 Qb6 g4 h5 g5 f6 Bh3 f5 Bg4 hxg4 Bb2 Nf6 Be5 Ng8 Ne6 Kf7 Bf4 Ke8 d7+ Kf7 Bd6 exd6 Nc5 Be7 Ne6 Bf6 Nd8+ Ke7 gxf6+ Kf8 Kd2 g5 Kd3 c5 Kc4 g3 f4 g4 e4 d5+ Kb3 g2 h4 g3 a4 Rh6 a5 c4+ Ka4 c3 f7 Ke7 a6 Kd6 e5+ Kc5 f8Q+ Kc4 e6 b3 a7 c2 e7 c1N e8N Qc6+ Ka5 Nd3 h5 Nf6 Qf3 Ng4 Rh2 Ne3 Ne2 g1N Nf6 g2 Ng8 Nh3 Ng3 g1N Re2 Nhf2 Nh1 Ngh3 Qg2 Ng5 Qa3 Rg6 h6 Ne6 h7 Ng7 h8N Kd4 Qe7 Qe6 Qh4 Rf6 Raa2 Qc6 Rac2 Qc7+ Kb5 b6 Rc5 Bb7 Rc6 Qc8 Rc5 Ne5 Ne6+ Kd3 d8Q N5c4 Qe7 Ba6+ Ka4 Ned1 Rc6 Nce3 Qb4 Bc4 Re1 Kc2 Re2+ Kc1 Rc7 Nc2 Rc5 Bd3 Rc3 Be4 Kb5 Kb2 Qd4 Ka1 Qd2 Nce3 Na3 Qc7 Nd4 Nb2 Ne6 Nd7 Ka6 Bc2 Qg6 Rc8 a8Q Qc4+ Kb7 Nb8 Qa5 Rc5 Qg2 Rb5 Ka7 Qc8 Qb4 Qa6+
2N5/1q2qP2/2pQb2q/3p1nk1/1KB2p2/B1QQ1n2/3Np2B/B1N2Nn1 w - - 0 1 legal: proof: b4 b5 h4 g5 a4 gxh4 axb5 a5 Bb2 a4 Bc1 Ra5 bxa5 Bh6 Na3 Bg7 Nb1 Bf8 d4 h5 c4 Nh6 b6 Rg8 d5 Rg5 d6 Rb5 cxb5 Ng8 f4 e5 f5 c6 b7 Be7 Ra2 Bg5 Ra3 Be3 Nf3 Bb6 Ng1 Bc7 dxc7 Qg5 Bb2 Qf6 Bc1 Qd8 g4 f6 e4 Nh6 Rf3 Ng8 Rf4 Kf8 Rh2 Ke7 Re2 exf4 e5 Kf7 e6+ Ke8 Re5 fxe5 Kd2 Ke7 Kc3 Kf6 e7 d5 e8N+ Kg5 f6 h3 a6 a3 f7 h2 b6 h1N a7 a2 a8Q a1Q+ Kb4 h4 Qd3 h3 Ng7 e4 Ba3 e3 Ne2 h2 Nh5 Nf2 Nhg3 h1Q Qa5 Qh2 Nd2 Qaf6 Nc1 Kh6 g5+ Kg7 g6 Kh6 g7 Ne7 g8Q Qg5 Qf8+ Qg7 Qc5 Bg4 c8N Be6 Qcc3 Nf5 Qd6 Nd7 b8B Nh3 b7 Kg5 Ba7 Qe7 b8B Qh6 Be2 Ng1 Ngf1 Qh1 Bd4 Ne5 Bba7 Nef3 Bf6+ Kg6 Bad4 Q1h3 Bh4 Kh5 Bg3 Kg5 Bh2 Q3h4 Qb3 Qc7 Ba1 Qd7 Qdc3 Qb7+ Bb5 e2 Qbc4 Qe7 Q4d3 Qf2 Ba6 Qfa7 Bc4 Qab7+
4rk1q/3q4/b1Q3nr/3Q2QB/r2q1BQ1/b3r2R/P4Br1/1BK1R1Rr w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 d3 a3 Be3 axb2 Nd2 Ra5 Rc1 Ra7 Rc2 Ra8 h4 b1Q g4 g5 f4 Bh6 f6 Ra3 f5 Qd7 Nh3 Ra8 Nf4 gxf4 g5 Bf8 Nc4 Nc6 Ne5 Nxe5 h5 Ng6 hxg6 Qd8 Bh3 Qb2 Bf1 Qa1 Kd2 b5 d4 c5 d6 e5 d5 h5 g7 e4 g6 f3 Bh6 b4 Bh3 c4 Re1 b3 Qe2 h4 Bg4 b2 Rc3 b1R Bf4 h3 Bh5 f2 Qg4 h2 Rh3 Ne7 g8B f1Q g7+ Ng6 Bh7 h1R g8R Rbb8 d7+ Kf7 d6 e3+ Kc2 Qd4 Kc1 Qe7 d8Q c3 d7 e2 Qa5 c2 d8Q Ba6 Qdd5+ Qe6 Qac5 Re8 Qcc6 Bb4 Rg7+ Kf8 f7 Rg1 Qg5 Rg2 Qg4 Qh1 Rg8+ Ke7 f8B+ Kf7 f6 Be7 Qa5 Qed7 Qag5 Bd6 Bh6 Ra7 Rg7+ Kf8 f7 Raa8 Bg3 Re3 Bf2 Rae8 Rd1 e1R Qcd5 R1e2 Re1 Ra3 Qc6 Ra4 Qgd5 R2e3 Bf4 Ne5 B7g6 Rh6 Bd3 Ng6 Rg8+ Ke7 f8Q+ Kd8 Qff5 Ke7 Rh2 Nf8 Qh4+ Rf6 Bg1 Rg7 Bg4 Qe5 Qg3 Qhe4 Rh3 Q4d4 Bh5 Rh6 Qgg2 Rgg3 Rg4 Ng6 Qg5+ Kf8 Qe2 Rgf3 Rg2 Rf2 Qeg4 Bc5 Rgg3 Rh2 Rg2 Rh1 Kd2 Ba3 Rgg3 Qh8 Rg2 Rg3 Bge3 c1R Bf2 Rc3 Rgg1 Rg2 Kd1 Qe4 Bb1 Re3 Kd2 Qed4+ Kc2 Bb4 Kc1 Ba3+
Q5q1/R1nq1Pk1/3Bq3/Bb1q1Q1R/R1B2b1K/2nq3r/Qqb5/B3R3 w - - 0 1 legal: proof: f4 a5 b4 b5 e4 h5 c4 d5 cxd5 f5 a4 Kf7 g4 hxg4 e5 Rh3 Nc3 Rh4 Ne4 fxe4 f5 Ra6 Nh3 Rf6 exf6 Rh8 Nf2 Qe8 Nd3 Qd7 axb5 Ke8 b6 Qd6 b5 Qd8 Nb4 axb4 Kf2 Kf7 Kg3 g5 h4 e5 d4 c5 d6 b3 d5 e3 d7 e2 d6 e1Q+ Kh2 e4 b7 g3+ Kh3 e3 h5 e2 h6 g2 b6 g1Q h7 c4 Qd3 c3 Qd2 b2 Qe3 b1B Qd4 c2 Qf2 g4+ Kh4 g3 Ra4 g2 Bb2 c1Q Ba1 Na6 b8R Bh6 b7 Qb2 Ra8 Qed2 b8B e1Q Ra7 Nc7 Bc4+ Qe6 Qe2 Qe7 d8Q Ba6 d7 Qgc5 Re1 g1Q Qc8 Bd3 d8B Bf4 Qb7 Qg7 Qa8 Qd7 Qf2 Kf8 f7 Ne7 Qe2 Qgg6 Qf2 Kg7 f6+ Kh6 Qfg2 Bc2 f8Q+ Qg7 f7 Q2d3 Qge4 Qcc6 Qf5 Ned5 Qa3 Nc3 Qb3 Bb5 Qa2 Na6 Be5 Qcd5 Ba5 Nc7 Bd6 Qf8 Qe8 Kg7 Qa8 Rg8 h8R Qfe8 Rh5 Rh8 Re3 Qg8 Re1 Rh6 Qc8 Rg6 Qb8 Rg3 Qa8 Rh3+
2B3nk/2BKNQ1n/B1Nn2P1/2n1p3/2r2q2/2Q1r2n/N2Q1rb1/5NBn w - - 0 1 legal: proof: c4 a5 e4 f5 a4 fxe4 b4 d5 cxd5 b5 axb5 Nh6 b6 Rg8 b5 Rh8 Ra4 Ng8 Rd4 Bd7 Rb4 Bc8 g4 axb4 f4 g5 h4 Na6 f5 Nc5 Rh2 Ba6 Rf2 Bg7 Rf4 gxf4 g5 Nd7 g6 Bf6 Bc4 Bg5 hxg5 Nb8 Bf1 Bc8 Kf2 Kf8 d4 Kg7 b7 c5 d6 e5 b6 h5 d7 b3 d5 f3 Kg3 c4 d6 f2 Nd2 e3 Ne2 c3 Qc2 h4+ Kg4 Qf6 d8B b2 d7 b1N Bc7 h3 d8Q Na6 b8N h2 b7 h1N Nc6 Na3 b8N Nb5 Ne7 Nd6 Nbc6 Nc5 Bb2 Ra1 Nc1 e2 Na2 e1N Ba6 Rc1 Nf1 Nf3 Qd2 c2 Bd4 Rh7 Qc3 Rh3 Be3 Kh8 g7+ Kh7 Bd4 Bb7 Be3 Qh6 f6 Ba8 f7 Qf6 Ng3 f1R Bg1 Rf2 f8Q Bb7 Nf1 Rg3+ Kh5 Qf4 Qf6 Rg4 Qff8 Re1 Qf7 c1N Qd7 N1d3 Qd8 Nh6 g8B+ Kh8 Kg6 Re3 Bh7+ Ng8 Qd7 Rfg2 Qd8 Ndf2 Qd7 Ne8 Qdd2 Ba8 Bc8 Nh3 Ba6 Rf2 Bc8 Qa4 Kf5 Rc4 Bg6 Bb7 Bh5 Ba8 g6 Nfg5+ Bf3 Nh7 Ba6 Nd3 Ke6 Nd6 Bg4 Qb4 Kd7 Bb7 Nd8 Bg2 Ndc6 Nc5+ Kd8 Qb1 Bf5 Qe4 Bfc8 Ncb7+ Kd7 Qf3 Na7 Qf4 Nac6 Nc5+
1n1q4/4r3/B3NPNr/qq2BQ2/1bbNNn2/qp2r1QK/1q3QB1/2Bk4 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 h6 a4 Nc6 h4 Nb8 Ra3 Rh7 Rf3 Rh8 Rf4 gxf4 g5 h5 Rh3 Qd6 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 Kg2 Kd6 d4 e5 a5 b5 h5 c5 a6 e4 f7 e3 a7 e2 h6 e1Q h7 c4 g6 g3 g7 c3 Bd3 b3 Qg4 b4 Bc2 f3+ Kh3 g2 Bb2 f2 Bd3 f1Q Bc1 c2 Nc3 b2 Ba6 b1Q Nf3 Nf6 g8Q g1R+ Qg2 b3 Qg3+ Qe5 Nh4 Bd7 Ng6 Qb5 Q2f2 Be7 f8N Nh5 Ne6 Re1 f6 Re8 h8Q Qb2 Qg7 Re3 Qh7 Ng7 Qh5 Bc6 Qhf3 Nh5 Qfg4 Bf8 Qgf5 Re7 Ne4+ Kd7 d6 Bd5 Kg2 Kc6 d7 Bc4 d5+ Kb6 d6 Ka5 Kh3 Kb4 Nd4 Qba5 Ng5 Kc3 Ne4+ Kd3 Kg4 Qeb5 Kh3 Qc8 d8N Qcd7 N8c6 Qdd8 d7 Qba3 Ne6 Qb2 Bd2 c1Q Ncd4 Qca1 Bc1 Q1a3 Ne2 Kc2 N2d4+ Kd1 Qc5 Qe8 d8B Qed7 Bc7 Qd8 Qcf5 Rg7 Nd2 Bb4 Ne4 Re7 Be5 Nd7 Ne2 Rc8 a8B Nb8 N2d4 Rcc7 B6b7 Rh7 Ba6 Rh6 Nd6 Rf7 Bg2 Re7 Ne4 Nf4+
1q1bNNQ1/b5N1/K5rn/P2r1B2/4Q3/Bp1nQ1B1/3qQnb1/k2q1Nb1 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 h6 a4 Nc6 h4 Nb8 Ra3 Rh7 Rf3 Rh8 Rf4 gxf4 g5 h5 Rh3 Qd6 Rg3 Qd8 Rg4 hxg4 Ke2 Kf7 Kd3 c5 Kc4 e5 Kb5 c4 d4 g3 a5 f3 h5 b3 h6 g2 d6 e4 d7 e3 d5 b2 d6 f2 h7 c3 Ne2 g1B Bh3 f1Q Bd2 c2 Bg4 c1B Bb4 Na6 Na3 b1Q Nc4 Nh6 Ng3 Nc5 Qe2 Rg8 h8B Qd1 Nf1 Be7 Bg7 Qa2 Ba3 Qad2 Bf8 Qc7 d8Q Ne4 d7 Qb8 Qb6 Rg6 d8Q Nf2 Qdd4 Bd8 Bfd6 Be6 Bh3 Bd5 Bg3 Bg2 Qe4 Bb2 Qc5 Bd4 Qce5 Ba7 Nd6+ Kg8 Ne8 Kf7 Bg4 b6 Ka6 b5 Qc5 b4 Qcd4 b3 Qb6 Kg8 f7+ Kh7 f8N+ Kh8 Q2f3 e2 f6 e1N f7 Ned3 Ne6 Kh7 f8N+ Kg8 Qfe2 Kf7 Bc1 Ke7 N6g7+ Kf7 Nfe6 Ke7 Qbe3 Kd7 Qb4 Kc6 Bf5 Kd5 Qb7+ Kc4 Qbe4+ Kc3 Ba3 Bf6 Nf8 Bd8+ Qe6 Kc2 Qc6+ Kb1 Qce6 Rf6 g6 Ka1 Qc6 Rf7 Qce4 Rd7 Nh5 Rd5 g7 Qe5 g8Q Rc8 Qgg5 Qb8 Qg8 Rc1 Nhg7 Rc6+ Qb6 Rg6 Qbe6 Bh4 Qb6 Bf6 Qbe3 Bd8+
nr5k/3P1r2/1rbRQp1K/1b3q1R/3r1N2/NQ1Q4/RN1nn2b/5RqQ w - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 g5 a4 b5 axb5 e4 b3 e3 Qc2 exf2+ Kd1 Ba3 Bh3 Be7 Ba3 Bb4 Kc1 Bf8 Qd1 h6 Bd6 h5 Bf4 gxf4 g5 Na6 Bf5 Nb8 Bg4 hxg4 e4 f1B d4 c5 Kd2 a5 h4 g3 d6 f3 Ke3 f2 Kf4 g2 d5 c4 d7+ Ke7 b4 c3 b6 a4 d6+ Ke6 b7 c2 h5 c1R e5 a3 g6 a2 g7 Ra5 h6 Bb5 h7 f1N Rh5 Ng3 Na3 Rc5 Nh3 g1Q Qd3 Qe7 d8R Rc6 Rf1 Nd7 b8R a1R Ra8 Ngf6 Kg5 Rd1 g8Q Rb6 Qgg6 Rg8 h8Q Bb7 Ra7 Rg7 Kh6 Ne2 Qge4 Rd2 Qh1 Raa6 Qg8 B7c6 Raa8 Ne4 Ra7 Bc4 b5 Rb8 b6 B4b5 b7 Nb6 Rd7 Na8 Rd8 Rc8 b8Q Rb6 Ra6 Qb7 d7 Ke7 e6 f6 Nf4 Qc7 Qb7 Rb8 Rc8 Qe5 Ra7 Bd5 Rc6 Qf5 Rd6 Rd1 Qc6 Nd2 Qcc4 Be4 Qcb3 Bec6 Nc4 Rc1 Nb2 Rc4 Ra3 Rd4 Ra2 Rf7+ Qg7 Kd8 e7+ Kc7 e8N+ Kd8 Nc7 Be7 Rd5 Bd6 Qg4 Ke7 Qgh3 Be5 Rd6 Kf8 Qhe3 Kg8 Qe6 Bc4 Nb5 Kh8 Na3 B4b5 Qdb3 Rc4 Qed3 Rd4 Nd5 Bg3 Nf4 Bh2
rqB4k/P2Q3r/3R1q2/1b1n1R1Q/1rRp2Rb/3B1K2/3n1BQ1/1nq1B1q1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 Nc6 b4 axb4 f6 Nb8 g4 Ra5 f5 Ra7 Nc3 Ra8 Nd5 h6 Nf4 gxf4 Nf3 h5 g5 Ra6 Ne5 Ra8 Ng4 hxg4 Ke2 Kf7 c4 b5 a4 e5 h4 d5 c6 e4 c5 e3 a5 b3 a6 g3 a7 g2 c7 g1R c6 b2 h5 b1N h6 b4 h7 b3 Kf3 e2 Bd2 e1Q Bd3 b2 Ra4 Nd7 Rh6 Ba6 c8B Rg4 c7 Qg1 Be1 Be7 g6+ Kf8 f7 Kg7 f8R Nb6 Rc4 Bb5 Qd2 Bh4 Qg2 Ne7 Rf6 Qf8 Rh5 Qf7 Rd6 Qf6 Bf2 Nc6 Rg5 Na5 Be1 Nb3 Bf2 Kh6 g7 Qc1 g8R N3d2+ Ke2 f3+ Ke3 Qg6 f6 Rf4 f7 Qf6 Be1 f2 Rf5 f1Q Rg4 Qg1+ Bf2 Rf8 h8B Kh7 Ke2 Rg8 f8Q Rg7 Qe8 Rf7 Bg7 Rd7 Bf8 Kh8 Qh5+ Rh7 Bh6 Re4+ Bhe3 Rf4 Be1 Rd4 B3f2 Rf4 Rc5 Rb4 Rc2 d4 Rc4 Ne4 Kf3 Nd5 Rc2 Na3 Rc3 b1Q Rc4 Qbb2 Ba6 Nb1 c8Q+ Qd8 Qd7 Qf6 Bc8 Qb3 Qf1 Qbb2 Bg3 Qbh2 Bgf2 Qhe5 Qg2 Qeh2 Rdc6 Qb8 Rd6 Ned2+
b1NN1Q2/RR1bQbn1/b2P1N2/K1q2brN/4p2R/2b4Q/1n2R2r/2kq4 w - - 0 1 illegal: No possible last move
1brN2BK/2q1B2p/r1n1n2k/1N2n2r/1p5Q/1BN3BP/1qn2QQ1/n5N1 w - - 0 1 legal: proof: a4 c5 b4 d5 a5 b6 f3 d4 Kf2 d3 Ra4 dxe2 axb6 Ba6 b5 Bc8 Rb4 cxb4 g3 e5 Nc3 g5 Kg2 e4 Nb1 e3 Qe1 Bf5 Qd1 Be4 fxe4 Qe7 Nc3 Qd6 Nb1 Qd8 Kf3 Ne7 Bh3 Nec6 Be6 Qf6+ Kg2 Qf5 h3 Qf6 g4 Qd8 Bc4 Ne7 Bd3 Qd6 Nf3 Qd4 Rf1 Qd8 Ng1 Ng8 Rf4 gxf4 Kf3 e1Q c4 a5 e5 f5 e6 a4 c5 a3 e7 Kf7 e8N Kg6 g5 e2 c6 a2 c7 a1R c8Q R1a2 b7 R2a5 b6 Rc5 Nc3 Bh6 Nd6 Na6 b8B Nc7 b7 Ne6 Ndb5 Ne7 Bc4 Qc7 d4 Qd2 d5 Qb2 d6 Nc6 d7 Ra6 d8N Bg7 Qdd7 Be5 Qd2 Kg7 g6 Kh6 g7 e1N+ Kf2 Rf8 g8B Nc2 Kf3 Na1 Qf2 Bd6 Be3 Re5 Bc5 Re8 Kg2 f3+ Kg3 f4+ Kg4 Rh5 Bb3 Rf8 Qg2 f2 Qd7 f1N Qf7 Be5 Be7 f3 Qf5 f2 Qf7 Ng5 Kf5 Bh2 Kf6 Ne3 Na7 f1N Nb5 Re8 Qc4 Ne6 Qh4 Nc4 Qgf2 Qa5 Bg3 N4e5 b8Q Qc7 Qbb6 Ne3 Qg2 Nec2 Qbf2 Ng7 Nb7 Rb8 Nd8 Rc8 Bgc4 Nf3 Kf7 Nfe5+ Kg8 Ne6 Kh8 Nc5 Bf7 Ne6 Bg8 Nd3 Qh1 Qa7 Bc7 Bg3 Qhg2 Qb7 Ba5 Bb8 Bc7 Qb6 Bcd6 Qc7 Bg3 Nde5
4qr2/Bk4NK/1rr5/QN1p1pNb/p1B5/bn1p2bQ/PQ3B2/2B1nN2 w - - 0 1 legal: proof: e4 e5 g4 c5 d4 exd4 b4 h5 bxc5 Nf6 gxh5 Ng8 e5 Ke7 e6 Kf6 e7 Ke6 Nf3 Kd5 Ng1 Kc6 f4 Kd5 Nd2 Ke6 Rb1 Kf6 Rb3 Ke6 Re3+ Kf6 Re6+ fxe6 Bc4 Kf7 Ba6 Qb6 Bf1 Qd8 h4 Kf6 f5 Kf7 f6 Qe8 Rh3 Qd8 Rf3 Qe8 Rf4 Qd8 Rf5 exf5 Ke2 Ke6 Kf3 Kd5 Kf4 Kc6 Kg5 b5 Kg6 a5 e8N d5 c4 a4 h6 b4 h5 b3 f7 b2 h7 b1R h6 Na6 Qf3 Rb5 Qh3 Rab8 Ngf3 Bb7 Ng5 Rb6 Be2 Nb4 Nf1 Bd6 f8B Nf6 Be7 Rg8 h8B Ne4 h7 Ba6 Bd3 Kb7 c6+ Ka8 c5 Nc2 c7 Nd2 c8Q Nb3 c6 Bg3 Bd6 Ne1 c7 Rc6 Bc4 Rf8 Qd7 d3 c8N Rbb6 Na7 Bb5 Qe6 Qe7 Bc5 Kb7 Bf2 Qd7 Kh5 g6+ Kh6 Qe7 Ng7 Qe8 Nf3 g5 Qg6 g4 Ng5 Rc7 Qf6 Bd7 Nb5 Rcc6 Qd6 Be6 Qd8 Bf7+ N5e6 Ra6 Qa5 Bg6 Ng5 Rab6 N7e6 Bh5 Bhd4 Bh4 h8Q g3 Kg7 g2 Kh7 g1B Ng7 Bg3 Bde3 Ra6 Ba7 Rab6 N7e6 B1h2 Qb2 Bd6 Ng7 Bhg3 Nf7 Bb4 Ng5 Ba3
1KRnq2B/1BQR2p1/p2n4/QBr2Q2/p2qq1P1/1b4q1/pk2BQr1/6R1 w - - 0 1 illegal: No proof kernel
N2b2NN/r4r2/4n1Nn/q3q2r/kpB3N1/N1P2b2/4r1QK/B1Bb2Bn w - - 0 1 illegal: No possible last move
4n1Nn/1q3Bk1/BB4B1/pq1N1B1b/r2p2pR/3NrnP1/2K1n1N1/q2B4 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 bxa4 h4 g5 d4 e5 Ra3 f5 Re3 g4 dxc5 Bd6 Qd4 exd4 e5 Be7 Re4 Bg5 hxg5 fxe4 Kd1 Kf7 f4 d5 c4 h5 f5 a5 b5 e3 g3 d3 e6+ Kf8 e7+ Kf7 e8B+ Kf8 b6 d2 g6 a3 b7 a2 f6 a1N c6 h4 c7 h3 f7 h2 g7+ Ke7 f8N Kf6 c5 Bf5 c8B Nc2 c6 Ne7 g8B Na6 b8N Qd7 c7 Kg7 Bgf7 Bg6 Nf3 Qb5 Be2 Bh5 Nh7 Nd4 Bf5 Ng6 c8B Rf8 Nc6 Nc7 Nc3 Nh8 Ne1 Ra6 Nb4 Re6 Bf3 Ne2 Ba6 Re4 Nbd3 Ra4 Nf6 d4 Ba3 Rg8 B7g6 Rf8 Bef7 Ne8 Bb4 Rg8 Kc2 d1Q+ Kb2 Rf8 Ng2 Qa1+ Kc2 Rg8 Ncd5 Rf8 Rg1 h1Q Bc5 Rg8 Bb6 Rf8 B7e6 Rf7 Ng8 Re7 Bef7 Re4 Nge1 Qg2 Rh1 Re6 Rh4 Qh1 Nc3 Re5 Ba8 Qb7 Nd5 Nc3 Bd8 e2 N5f4 Qa7 Bf3 Re3 Bb6 Qb7 Neg2 e1N+ Kd2 Qc7 Nd5 Qb7 Bd1 Nf3+ Kc2 Ne2
4RNR1/2Kr3q/1n1R2r1/3bR2N/p1R3nk/n4P2/1Br1nR1b/nnR2R2 w - - 0 1 illegal: No possible last move, all moves rejected
1r2QRR1/2Q3n1/1bQ1r3/Bn1n3Q/1P4qQ/Qn1bp2K/8/QRqk1r2 w - - 0 1 legal: proof: c4 a5 b4 f5 e4 b5 exf5 d5 cxd5 a4 Bc4 Bb7 Bb3 axb3 a4 Ba6 axb5 Bc8 f4 g5 g4 h6 f6 Nd7 f5 Nb8 Nh3 Be6 Nc3 Bc8 Nf4 gxf4 Ne4 h5 g5 Be6 Nf2 Bc8 Ng4 hxg4 Kf2 Kf7 Kg2 e5 d4 c5 h4 b2 d6 b1N d5 e4 h5 g3 h6 f3+ Kh3 c4 h7 f2 b6 f1R d7 g2 d6 g1Q b7 c3 Bf4 Na6 b8Q c2 Qa7 Nc7 Qa3 Nc3 Rb1 c1N Be5 Qd4 Rg1 e3 Bg3 Qe8 d8Q Qc6 d7 Ne8 Qc7 Ng7 d8Q+ Ne7 Qc2 Rg8 h8Q Ba6 Qg2 Qcc4 Qgc6 Nb3 Qh4 Ra7 Qda8 Nb5 Bd6 Rh8 Rg2 Qc1 g6+ Kg8 Bc5 Nd5 Bb6 Qdc4 Ba5 Qg4+ Kh2 Rh6 f7+ Kh8 f6 Rb7 Qae8 Rb8 Qee5 Be7 Qea1 Bc5 Rf2 Bb6 Qh5 Nf5 g7+ Kh7 g8R Ng7 Qh4 Kg6 f8Q Rh8 Qfc5 Rh6 Rc2 Kf5 f7 Ke4 f8Q Kd3 Qfe8 Rhf6 Rf2 Re6 Rf5 Kd2 Rff8 Ndc3 Qch5 Nd5 Qec8 Kd1 Q8e8 Nbc3 Q6d7 Bd3 Qdc6 Qe2+ Kg3 Nb5 Kh3 Qg4+
3Q2q1/pQ1N2np/bK3n2/pn4N1/1N2QPqN/1BNr3p/Q7/1N4k1 w - - 0 1 illegal: Other
B2b1QB1/nR2P3/2p1n3/p3N1b1/KBRP3N/R2pprq1/2N2kb1/8 w - - 0 1 legal: proof: b4 c5 g4 h5 gxh5 b5 a4 Nh6 axb5 Ng8 bxc5 f5 c4 Nh6 c6 Ng4 c7 Nf6 c5 Ng8 c6 dxc6 d4 a5 e4 e5 b6 Ra6 b7 Rb6 f3 Rb5 f4 fxe4 Qd3 exd3 Kf2 e4 Ke1 Re5 fxe5 Qg5 Ra3 Qe7 Ra1 Qd8 Kd2 Kd7 Kc3 Ke6 Kb3 Kd5 h4 g5 e6 e3 h6 Ke4 e7 g4 h7 g3 h5 g2 h6 Qd5+ Ka4 Qf5 Ra3 Be6 c8B Nd7 b8R Qe5 Bb7 Ngf6 Nf3 g1B Ba8 Bh2 Bg2 Bd5 Bd2 Nh5 Rb7 Qg3 Bb4 Ng7 Rc1 Ne6 Nh4+ Kf4 Bh3 Bg2 Rc4 Bg7 Bg4 Rf8 h8Q Bf6 h7 Bg5 Bh5 Rf7 Qf8 Rf6 h8N Nb6+ Kb3 Ke4 Bf7 Nc8 N8g6 Na7 Ka4 Rf3 Bg8 Rf7 Nf5 Kf3 Ne5+ Kf2 Nh4 Rf3 Rb3 Qg4 Na3 Bhf4 Nc2 Qg3 Neg6 Be5 Ra3 Bc7 Ne5 Bd8
b1n1RN2/n1r2n2/RP1k4/B2p4/2Br2nP/nN1p2p1/K4NrB/3Q1R2 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 d4 cxd4 f4 e5 g4 exf4 b6 hxg4 b7 Bc5 bxc5 Qb6 cxb6 Rh7 Ra4 Rh5 Ra1 Rh8 Kd2 Ke7 c4 f5 Kc2 d5 Kb2 a5 e4 g5 h4 a4 c5 a3+ Kb3 a2 c6 f3 c7 d3 e5 f4 e6 g3 Nh3 f2 Na3 g4 Qe1 f3 Qe4 g2 Bh6 g1R Nf4 Ra4 Qe1 Nc6 b8B Kd6 e7 Rd4 e8R Nge7 Bh3 f1N Nc2 f2 Ng6 Ne3 Qd1 f1N Nf8 Nc4 Bd2 N4e5 Ba5 Na7 Kb2 Bb7 c8N+ Kc6 Ka3 Rh7 Nd6 Ba8 Ne4 Nf7 Nf2 Nec8 Bh2 g3 Bd7+ Kd6 Bb5 Rg2 Bc4 Ne3 Rf1 Ng4 Kb3 Nfh6 Ka3 Rc7 Kb2 Nf7 Ka3 Re4 Nd4 Rf4 Nb3 Rd4 Rc1 a1N Ka2 Nc2 Rb1 Na3 Rb2 Ne7 Re2 Bc6 Ra8 Nec8 Re8 N7b5 Ra7 Ba8 Ra6 Nba7
B1krRN2/pnP1p1K1/3rqq2/6p1/1N3PRN/1Bb1qB2/1Qp5/1b3R2 w - - 0 1 illegal: No possible last move, all moves rejected
BbB5/knrNq2r/2q2qRn/1R1b2R1/2P1N2Q/q3P1n1/4b3/qBK1N3 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 Ba3 exf4 axb5 Be7 b6 Bc5 b5 Bf8 Bb4 axb4 Kd2 h5 c4 d5 g4 Kd7 b7 Kc7 g6 Kb6 g7 f5 g5 f3 g6 h4 e3 h3 Ra5 h2 Bd3 f4 Bf5 d3 Be4 f2 Bf5 f1N+ Kc1 d4 Qh5 b3 Nh3 d2+ Kb2 d1B Qf3 d3 Nf2 d2 Na3 Be2 Nh3 d1Q Nf2 Qe7 Qd5 f3 Qe4 Ng3 Qh4 Nd7 b8R+ Bb7 Nc2 Nh6 g8B Qdd6 g7 Rh7 Ne1 Ra7 Bb1 Nc5 Rg1 h1Q Ne4 f2 Be6 f1Q g8B Qff6+ Kc1 Qc6 Bc8 b2+ Kc2 Qhf3 Bd5 Bg7 Kd2 Qff8 Rg2 Be5 Rg1 Q3f6 Rg2 Nh5 Rg6 Ng3 Kc2 Kc7 Kd2 Ba8 Rb6 Nb7 Rg5 Kb8 Rba6 Nhf5 b6 Nh6 Rb5 Qa3 Kc2 Q8e7 Kd2 Na5 Kc2 Rc7 b7 Bd6 Rab6 Ka7 b8N Nb7 Nd7 Bf4 Ba2 b1Q+ Kd2 Qbb3 Bb1 Qaa1 Kc1 Qba3+ Rb2 Qcc5 Rg6 Na5 Rd6 Rb7 Re6 Bb8 Re5 Rc7 Bc6 Qd5 Reg5 Qdd6 Bb5 Bd5 Bc6 Qde6 B6b7 Qc6 Ba8 Qac5 Rb6 Nb7 Rb5 Qca3+
r1Rb4/qBP1P1NK/bB6/NN1r1rk1/2Qqqn2/6nR/1n2n3/RB4n1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 a4 c5 d4 cxd4 f4 b5 axb5 axb4 Rh3 exf4 Rh2 Qa5 Rh1 Qd8 Kf2 Ke7 Kf3 f5 g4 d5 e4 h5 c4 h4 b6 d3 b7 d2 c5 h3 e5 b3 e6 d4 g6 Kf6 g7 b2 c6 d3 c7 h2 Nc3 b1N Qc2 d1R Qe2 d2 Qd3 Nd7 b8N Ba6 Qe2 Kg5 Nc6 Ne5+ Kg2 f3+ Kg3 f2 Na5 Qd4 Bg2 f1Q Qc4 Nf3 Nb5 Rh5 Ne2 Be7 Nf4 Nf6 g8B Ng1 Bh7 Nc3 Bb7 Bd8 Ba3 Qa7 Bc5 Nfd5 Bb6 Qe2 Bg6 Qe4 Bh7 Qd4 Bg6 Rh4 Nh5 Nf4 Ng7 Rh5 Bh7 Rf1 Bg6 d1N Bh7 Kf6 Bg6 Rg5 Kh4 Nb2 Bh7 Nce2 Bg6 Nh5 Bh7 f4 Bb1 Rd5 g5+ Ke7 g6 Kf6 Nf5 Rf3 g7 Rf2 g8R f3+ Rg4 Nhf4 Rg8 Rf1 Ng7 f2 Rh8 Rd1 Kg4 f1N Rh3 Nfg3 e7 Ke5 Kg5 Rf1 Kh6 Kf6 Kh7 Kg5 Ra2 Nf3 Rg1 h1Q Ra1 Rf2 Rd1 Qg2 Rd3 Qh1 Rda3 Nfg1 Rb3 Nfd3 Bc6 Ndf4 Bc5 Nf5 Nc3 Ng2 Rb8 Nfg3 Bb6 Rf1 Nb5 Rff5 Rc8 Ngf4 Bb7 Qhe4
2bRr1N1/1p1K1N2/nN6/k1qB1rBR/1q4P1/q2r1b2/1bP1B2Q/n3b1R1 w - - 0 1 illegal: No possible last move
4R3/k1B2Q2/p2bnPBr/2Rr1b1b/N1PN4/1r1b2q1/R3r1N1/b3K1Bn w - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 d4 cxd4 f4 b5 axb5 f5 exf5 e5 Qd3 exf4 Qd2 Na6 Qd1 Nb8 c4 d5 b4 Kd7 h4 Kc7 b6+ Kb7 f6 g5 h5 f3 h6 f2+ Ke2 a6 b5 g3 h7 g2 Nh3 g1B Qd3 g4 Bh6 g3 Qc3 d3+ Kd1 g2 Nd2 d4 Bg5 Bd6 Bf4 Qc7 Ra4 Bf5 Qa3 Ne7 Nb1 d2 Qc5 Nd7 Nc3 Rab8 Be3 Nf8 Ra2 Ne6 Bd3 f1B Na4 Bgh2 Rg1 Bhe5 Nf4 Ka8 Rh1 g1R Rh5 Rg2 Bg1 Rf2 Ng2 Kb7 Bc2 B1d3 Qa3 Ka8 b7+ Ka7 Qb2 Rhg8 h8R Rg6 Re8 Rh6 Rh4 Bh7 Rg4 Nf5 Rg5 Ng3 Qb4 Bhf5 Qa3 Ra8 b8N Nh1 Qb4 Qg7 Rh5 Qg3 b6+ Kb7 Nc6 Rb8 Ne7 Ka8 b7+ Ka7 Qb5 Ba3 Qb3 Bb2 Qb5 Ba1 Qd5 Bd6 Rg5 Rc8 Bb1 Rc6 Bc2 Rb6 Rh5 Rb3 Rg5 Ng7 Qf7 Ne6 b8B+ Kb7 Rh8 Bg6 Rf8 Bf1 Bc7 Ka7 Be4 Bh7 Kc2 d1B+ Kc1 d3 Re8 Bh5 Rc5 d2+ Kc2 Bfe2 Nf5 d1R Bd3 B7g6 Be4 Rd5 Nd4 Bh7 Kd2 Bd3+ Ke1 Bf5 Nh4 Bfg4 Bg6 Bgf5 Ng2 Re2+
K1r1k3/N2r2rR/3n2Nr/1Q6/RP1P4/NqR3rp/bBB2bBr/1q2r3 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 h4 g5 g3 Nc6 Qb3 Nd4 Qd1 Ne6 Rh2 g4 Rh1 Ng5 hxg5 fxg3 b4 a5 e4 f5 Ke2 h5 Ke3 c5 b6 h4 b7 a4 b8N a3 e5 f4+ Ke4 g2 d3 c3 g6 f3 g7 f2 e6 c4 e7 g3 Qg4 h3 Qg5 c2 Nc3 a2 Ba3 c1Q Be2 f1R Qf5 Rd1 Nc6 Qb1 Bf1 Rh6 Nge2 g1R Qb5 g2 Nf4 Be6 Ng6 Rc8 Bb2 Nf6+ Ke5 Bd5 g8B Ne4 Bh7 Nd6 Na7+ Qd7 Rh2 Rh1 Kd4 g1R Rc2 Rg3 Bg2 Rh2 Ke5 Rc7 Kd4 Rb7 Kc5 Rc7+ Kb6 Rd2 Nc6 Qe6 Na7+ Rd7 Rc1 Rd1 Rc2 Re1 Ka6 Bg7 d4 Bf6 Kb6 Bg5 Rc1 Be3 Ka6 Bf2 Rc2 Qd1 Nb1 c3 Na3 Qb1 Rc1 c2 Kb6 Kf7 e8R Qe3 Rc8 Qb3 Rc3 Ke8 Ka6 Re7 Re1 c1R Re4 Re1 Rh4 Rg7 Kb6 Bf7 Kc6 Rd8 Kc7+ Rd7+ Kb8 Re5 Ka8 Rc5 Ne7 Be6 Bc2 Rc8+ Qb8 Rhg6 Rh7 Rh6 Ng6 Qg1 Re1 a1R Re5 Qf1 Ra5 Re1 Ra4 Qd3 Bb1 Qdd1 Bc2 Qb1 Ra6 Qa4 Ra5 Ba2 Ra6 Qb3 Ra5 Kf7 Ra4 Rc5 Qb7 Ke8 Qb5 Rc8+
K2q4/BN1qB1rq/qP3R1N/1R2R2Q/1Pn4q/B4bN1/q1qk3p/2b3r1 w - - 0 1 legal: proof: e4 c5 h4 b5 a4 g5 axb5 gxh4 d4 cxd4 Qe2 d3 Qg4 Qb6 Qd1 Qd8 Bf4 f5 Be3 d5 Bc1 d4 Be2 Na6 Bg4 Nb4 Bf3 Nd5 exd5 Kf7 Be4 fxe4 Be3 Ke8 Bh6 Rb8 Bc1 Ra8 Kd2 Kd7 f4 Kd6 g4 Kc5 b4+ Kc4 b6 a5 d6 h5 g5 e5 f5 a4 g6 h3 g7 h4 c3 e3+ Ke1 a3 d7 e2 Kd2 e4 f6 a2 f7 Nh6 g8N Rh7 Nf6 Bb7 Ng8 Ng4 Rh2 Ne3 Rf2 Bh6 f8B Rg7 Bd6 Ra5 Bc7 Rag5 Rf6 Qa8 d8B Qa6 Bb8 Bc6 Nf3 Rg1 Nh2 Bf4 Nf1 Bd5 Ke1 d2+ Kf2 Kd3 Na3 Bb7 Rb1 a1Q c4 Qa2 c5 Kc3 c6 d3 c7 Bh6 Qa4 d1Q Be7 d2 Qb5 Qdc2 c8R+ Nc4 Rc5 d1Q Ba7 Qd7 Bb2+ Kd3 Re1 Bc1 Qa5 Ba8 Nb5 Qc7 Ng3 Qd7 Nh5 Kd2 Ba3 Qc7 Nd6 Qd7 Rc6 e3+ Kf3 Bb7 Kf4 Qc7 Rc5 Qd7 Rg5 Bf3 Qf5 Qc7 Rf1 e1Q Qa5 Qed1 Re1 Kd3 Kf5 e2 Ke6 Ke3 Qf5 Qdd3 Qh7 Kd2 Rb5 h2 Qf5 h1Q Qe5 Qc5 Kd7 h3 Qh2 Qcd5 Kc7 Qc5+ Kb8 Qdd4 Nb7 Qd7 Qe5 Qcc7+ Ka8 Qh2 Rf1 e1Q Re6 Bc6 Rff6 Bf3 Qf5 Qee4 Ree5 Qg3 Nh6 h2 Qg4 Qh4 Ng3 Qh7 Qh5 Qcd8+
2rkr1NQ/4qbpq/2r1r3/1rb1nRR1/3BBB2/4N2P/1RNrqP2/K7 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra2 fxe4 Ra4 Qb6 Ra1 Qd8 b4 h5 g4 hxg4 Nd2 a5 Nb1 a4 Bg2 Nc6 Bf1 Na5 bxa5 Rh4 Bc4 Rh5 Bf1 Rh8 Kd2 e5 c4 d5 Kc2 d3+ Kb2 a3+ Ka2 d4 b6 g3 h3 e3 b7 g2 b8B e4 c5 e2 c6 e1Q c7 d2 a6 d3 a7 e3 Ne2 g1Q Qc2 d1R Qc4 d2 Ng3 e2 Qb3 Nf6 Bg2 Be6 c8N Qe7 Bf4 Kd8 Nf5 Nd7 Be4 Bf7 Bb2 Ne5 Bd4 Qg6 Ne3 Qh7 Rg1 Rc1 Rg5 d1R Qe6 Rb8 a8R Rc6 Ra5 Rb5 Qc4 Re6 Qc6 Rc1 Qa8 Rcc6 Rf5 Qf1 Qb8 e1R Rg5 Rd5 Rb5 Rd1 Rb2 Rb5 Rf5 Rd2 Rg5 Qb7 Ne7+ Rc8 Ng8 Qe2 Nc2 Qe7 Nc3 Rc6+ Nd5 Re6 Re1 Rc6 Ka1 a2 Rf5 Re6 Nde3 Rc6 Rb4 Re6 Rg1 Rc6 Kb2 a1R Rgg5 Raa6 Kb1 Re6 Rb2 Rac6 Ka1 Qb7 Nd1 Bc5 Nde3 Qe7 Nh6 Ke8 Qa7 R8c7 Qa8+ Kd7 Qf8 Rc8 Qg8 Qg6 Qh7 Rhe8 Qh8 Kd8 Ng8 Qh7
2b1B3/1r3Bn1/R1b1pR2/K2R2qb/N2N2rP/3b3k/p1bn2nP/Q1B2N2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g3 g5 a5 h5 a6 h4 gxh4 bxa6 Bh3 a5 Bf1 a4 f4 gxf4 e3 d5 Nf3 d3 Na3 d2+ Kf2 d4 Nb1 d3 Ng1 Bh6 Qe2 Bg7 Qd1 Bd4 exd4 Bf5 Qh5 Bh3 Qd1 Bc8 b4 Kd7 c4 Ke6 b5 Kf5 c5 a5 c6 f3 Ke3 Kg4 d5 f5 Kd4 e6 Kc4 a3 d6 a4 Kb4 f4 d7 a2 c7 a3 b6 Na6+ Kb5 Nh6 b7 Ra7 b8R Rb7+ Ka4 Nb4 Nh3 Nf5 Nc3 Nd5 Bg2 Rg8 Ne2 f2 Ng5 f1B Nf3 Qg5 d8N Nde3 Nc6 Ng7 Nc3 Be2 Bf1 Ng2 Ncd4 Kh3 Qe1 Qf5 Ra8 Qg5 Rb1 a1N Rb5 d1B+ Ka5 a2 Na4 d2 Ra6 Bc2 Rd5 d1B Nd2 Bb5 Be2 f3 Rf1 f2 Bh5 Bc6 Bf7 B8d7 c8B Bh5 Rg1 f1B Qd1 Bc4 Rf1 B4d3 Rf6 Rb2 Nf1 Nb3+ Kb4 Nd2+ Ka5 Rb1 Bb7 Bc8 Qe1 Bcb5 Bc6 Rb4 Bce8 Bc6 Nf5 Rg4 Qe5 Rh8 Qa1 Rh7 Nd4 Nf5 Bg8 Rb7 Bgf7 Ng7
rrN4B/1p3Q1N/P1pn1R1B/N7/kb3R1B/P1r3R1/b2bK1r1/1n3nq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 d5 cxd5 exf4 h4 Kd7 e4 g5 d4 f5 d6 Kc6 e5 f3 a6 g3 a3 g2 e6 f2+ Kd2 f4 d7 g4 h5 f3 h6 g3 h7 Nf6 e7 Ne4+ Kd3 Kb5 e8N c6 d5 Nc3 d6 Qb6 d8B Be6 d7 Bb4 Nd2 Nb1 Nh3 g1B Ng5 g2 Rh4 Ba2 Nb3 Ka4 Nd6 Bh2 Qc2 g1R Rf4 Rg3 Bg2 f1N Qc4 f2+ Ke2 Rc3 Na5 Bg3 Rf6 Bf4 Qf7 Bd2 Nc8 Qc5 Be7 Qa7 d8R Nd7 Rf8 Ne5 Rg8 Nc4 Rgg6 Rd8 h8B Nd6 Nh7 Qc5 Rg3 Rf8 Na7 Rfb8 Nc8 Qg5 Rd3 Qg3 Rf4 Qh2 Rg3 Qg1 Bh4 Ne3 Rff3 f1R Rf6 Rf3 Rf4 Nf1 Rf6 Be1 Bh6 Bd2 Rg5 Rh3 Rg3 Be6 Ra2 Rh2 Rb2 Ba2 Rc2 Rf3 Rc4 Rc3 Rcf4 Rxg2+
1R3n2/b1kb3B/n1r1q1p1/2RP3r/1p1q2QB/B6n/2NN3P/nR1Nn1K1 w - - 0 1 legal: proof: g4 f5 e4 a5 exf5 d5 c4 h5 cxd5 hxg4 b4 axb4 a3 bxa3 d4 Kd7 f4 b5 Kf2 e5 f6 c5 f5 g3+ Kg2 c4 d6 e4 d5 g6 f7 e3 f6 e2 Bg5 c3 Nd2 a2 Qa4 c2 Rb1 a1N Nh3 c1N Kg1 e1N Nf2 g2 Bh4 Ncd3 Nd1 Qe8 Qg4+ Qe6 Rc1 Rh6 Rc5 Nf2 Be2 Be7 f8B Rh5 f7 Nf6 Bf3 Kd8 d7 Ra6 Be4 Nh7 Bf5 Bg5 Bd6 Rc6 f8N Bf6 Be7+ Kc7 d8R Bd7 Re8 Qd6 Be6 Na6 Bg8 Bd4 Ra8 Qe6 Rb8 Ng5 Bh7 Be3 Rc1 Ba7 Ba3 b4 Rc3 Qg8 Rc1 Ne6 Rc5 Be8 Nd7 Nf8 Ne5 Qe6 Nec4 Bd7 Nce3 Qg8 Nb1 Nfd3 Ndc3 Ne5 Kf2 g1Q+ Ke2 Nec2 Nd2 Nd3 Kf3 Qe6 Ke2 Qg3 Rb1 Nce1 Kf1 Qf4+ Kg1 Qd4 Nd1 Nf2 Nc2 Nh3+
br2BqNN/1k2qR1P/1rn1PR2/8/1Bb2p2/4Q1b1/1p1Nqq2/1nBK1R2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 e4 Kd7 d4 g5 h4 f5 h5 c5 d6 b3 d5 g3 h6 f3 e5 g2 h7 b2 b6 c4 b7 f2+ Ke2 g4 Qd3 c3 Be3 c2 Ra7 c1Q Nf3 g1Q Qc2 g3 Qb3 g2 Nc3 Nf6 Ne4 Qcc7 Kd1 Nc6 b8B Bb7 e6+ Kc8 Bc1 Qce7 Nfd2 f4 Bc7 Rb8 Qe3 Ba8 Ba5 Rb6 d7+ Kb8 d6 Nd5 Nf6 Nc3+ Kc2 Qde8 d8N Nb1 Bb5 f1B d7 Bc4 Ng8 Qf1 Nf7 g1Q Bb4 Qgf2 Rc7 Qc8 d8R Qd3+ Kd1 Bh6 Rd5 Bg5 Rf5 Bh4 Rf1 Qcf8 Rf6 Bg3 Ra7 Ne5 Be8 Nc6 Ra5 Kb7 Raf5 Qg7 Ngh6 Rg8 Nh8 Rf8 Ng8 Qh6 Bd7 Rb8 Be8 Qhg7 Rf7 Qf8 R5f6 Qde2+
4B1B1/4N1RP/4K1bR/b2Rq1pb/Pb1Q2N1/1k1pr2B/r5q1/bN4nr w - - 0 1 illegal: No possible last move, all moves rejected
N1R1b1R1/4Bq1k/nn1P4/p3P2B/b3r1n1/1bR2pN1/b3nB1N/3Q1bK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 d4 Nf3 exf6 Ng1 f5 Qb3 f4 Qc2 Nf6 Qd1 Ng8 Nh3 a5 Qc2 Bb4 Qd3 c5 Ra2 Bc3 Ra1 Ra7 Ng1 Rd7 Qc2 Rd5 cxd5 c4 Qd3 Bb4 Qb3 c3 Qd1 c2 Ra2 Qb6 Ra1 Bc3 dxc3 Qd8 Kf2 Kf8 b4 Kg7 e4 h5 g4 f5 e5 h3 b5 h4 c4 f3 b6 d3 c5 h2 b7 f4 g5 d2 g6 h3 d6 a3 c6 a2 c7 Nd7 b8B Qf6 Ba7 Nb6 Be2 Be6 c8R Bb3 Rc6 Rh4 Nc3 Nh6 Bd3 Qf7 Nge2 Ng4+ Kf1 f2 Na4 Kh6 Rg1 h1B g7 h2 Rc3 Bhd5 Ng3 h1B Be2 Kh7 g8N Bdc4 Nh6 Bc6 Rb1 a1N Rb2 Be8 Kg2 Nf6 Ng4 f1B+ Kf2 Ba2 Nh2 Bcb3 Bh5 f3 Rg2 Re4 Kg1 Ng4 Rb1 Nc8 Nb6 Bba4 Rb5 Nb3 Na8 Nc5 Rb8 Na6 Bf2 Nb6 Rbc8 B4b3 Qe1 d1B Bg5 c1N Be7 Bdc2 Qd1 Bba4 Ne2 Bcb3 Rg3 Nf6 Rg8 Ng4 Ng3 Ne2+
2B1R1n1/b1BN1N2/4b2p/q1b1bPRp/1N1rB1b1/RPkbb3/6Q1/2K3b1 w - - 0 1 illegal: No proof kernel
NrQ4r/1b6/1r2r3/1nBP3n/p1R1bRp1/N5bR/p2B2PB/k1K1N1q1 w - - 0 1 legal: proof: e4 f5 f4 b5 c4 g5 a4 bxa4 Bd3 d5 cxd5 h5 Be2 gxf4 Bg4 hxg4 exf5 Bg7 Qf3 Bh6 Qd1 Bf8 b4 Kf7 d4 Kf6 Kd2 c5 h4 e5 h5 a5 d6 f3 b5 f2 h6 f1B d7 c4 h7 a3 d5 a4 b6 a2 b7 e4 Qe1 Ke5 f6 Kd4 f7 e3+ Kd1 c3 Ba3 e2+ Kc2 Qb6 d8N Bd6 f8R Na6 b8B Bg3 Kc1 c2 Rh3 Nf6 Nf3+ Kd3 Bbd6 Nh5 Rf4 Bb7 Ne6 Nc7 Bac5 Rab8 Na3 Nb5 Nc7 Qa7 Qf2 Kc3 Na8 Kb3 Qd4 e1R+ Qd1 Re7 Ne1 Re6 Rb1+ Kc3 Rbb4 Bd3 Rbc4+ Kb3 Qd2 Be4 Qa5 Qb6 Qa6 Qa7 Qc6 Qb6 Qc8 Qa7 Kd2 Kb2 Bc7 Ka1 Kc1 Rf8 h8B+ Rff6 Kd2 c1R Bg7 Rb1 Bh6 Rf8 Bg5 Rb3 Kc1 Rh8 Rf5 Bh4 Bh2 Bg3 Bd2 Rb4 Rf4 Rb2 Bd6 Qg1 Be7 Nc7 Bd6 Rb6 Bc5 Nb5
n1k4B/3Nn1BR/n2KPN2/3nP2n/qbp2NQ1/1Rqr3p/p1b1R3/1B6 w - - 0 1 legal: proof: f4 a5 c4 b5 a4 bxc4 d4 d5 h4 g5 f5 gxh4 e4 e5 dxe5 d4 e6 Ra7 e5 Rb7 f6 Rb5 axb5 Qxf6 Be3 Qg5 Bc1 Qd8 Ke2 c5 Kf3 f5 Kf4 h5 g4 d3 b4 c3 b6 d2 b7 c2 g5 h3 b5 a4 g6 a3 g7 h2 b6 h4 Ra2 c4 Be2 h3 Ra1 a2 Bd3 Na6 b8B Qd7 b7 Kd8 Qg4 d1N Bd6 Ne3 b8N Qa4 Nc3 Bd7 Ne4 Kc8 Rb1 Ne7 g8R N3d5+ Kg5 f4 Nf6 f3 Ne2 f2 Rb3 f1N Nf4 Nb6 Rg7 Be8 Nbd7 Na8 Rh7 Ne3 Re1 h1N Re2 N3d5 Be3 c1Q Bb1 Bh5 Bf2 Bg6 Bh4 Bc2 Ba3 Nf5 Kg6 Bb4 Kf7 Nhg3 Bg5 Bd2 Bf8 Bb4 Bg7 Rd8 B5h6 Nh5 Bh8 Qd2 B6g7 Qc3 Nc5 Rd7+ Kf8 Nde3 Ke8 Rd3+ Kf8 Nh6 Ke7 Nd5+ Kd6 Ng8 Rd2 Ba5 Re2 Nge7 Ncd7 Bb4+
R2bR1nN/q4p1n/1kbB1PK1/1p6/Qn4BN/1n6/N1p1bP2/B1R1rq2 w - - 0 1 illegal: Other
RNK5/3P3p/2N3kq/2rPp1B1/1q1rnR2/bnr1q1R1/pr3Q2/2N3BB w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 g5 h4 gxh4 e4 fxe4 d4 Kf7 d6 Bd7 d5 Bc6 Qc2 Bb5 axb5 Ke8 Qc6+ bxc6 Ke2 Kf7 Ke3 a5 Kf4 e5+ Kf5 e3 f4 h3 b4 h2 g4 c5 b6 c6 b5 c4 g5 c3 b7 e2 b6 e1R g6+ Kg7 Ke6 a4 f5 c5 Nd2 c4 Nb3 c2 Ne2 c3 Bg2 a3 Ned4 Rd1 Rf1 h1Q Bg5 c1Q Rf4 c2 Nc6 Nd7 b8B Rd4 b7 Qa5 Ba7 Qe3 b8N Qb4 Nc1 Qh6 Bh1 Ngf6 Ra2 Ne4 f6+ Kg8 f7+ Kg7 Bc5 Ra5 Bb6 Rc5 Ba7 Nb6 Ra1 Nc4 Kd7 Na5 Kc8 Rg8 d7 Nb3 Ra2 Be7+ f8Q+ Kh8 Ne2 c1R Bb6 R1c3 Nc1 Bd6 Rg2 a2 Rg3 Be7 Ba7 Bd8 Qf5 Rg7 Qf7 Be7 Qf5 Rf7 g7+ Kg8 Bb6 Rf6 Ba7 Kf7 g8R Bd6 Qh3 Rf5 Qf1 Bf8 Rh8 Kg6 Qf2 Bd6 Rh4 Rf3 Rf4 Rc2 Re8 Rb2 Ref8 Rcc4 R4f7 Qf4 Qc2 Rdd3 Bg1 Rcd4 Kd8 Qa4 Qf2 Ba3 Na6 Qb4 Kc7 Rc4 Ra8 Rdd4 Kc8 Rfc3 Nb8 Qe3 Rf4 Rc5
b1qr1n2/q4Brk/1Bpp1R2/2PN1P2/2Q2B1p/2NRK1p1/1bRb4/r5N1 w - - 0 1 legal: proof: g4 b5 h4 e5 a4 f6 d4 Bd6 axb5 Na6 f4 exd4 e4 f5 g5 Nb4 h5 Nd5 h6 fxe4 f5 Ndf6 gxf6 Bh2 Qg4 Nxh6 Qd1 Ng8 Ke2 Kf7 c4 g5 b4 a5 b6 h5 b5 d3+ Kd2 e3+ Ke1 d6 b7 a4 b8N d2+ Ke2 a3 c5 h4 b6 a2 b7 c6 Nf3 g4 Nd7 Be5 b8B g3 Nc3 Rh7 Ba7 Rg7 Ng1 Ne7 Qa4 Kg8 f7+ Kh7 f8R d1R Qc4 Ng6 Nb6 Bb7 Rh2 Qc8 Rf6 Nf8 Nbd5 Rb8 Rf2 Ba8 Bb6 Re1+ Kd3 e2 Bf4 Rd1+ Ke4 e1B Rc2 Rc1 Rb1 a1Q Rb3 Qa7 Ke3 Ra1 Be2 Rc1 Bh5 Ra1 Nce2 Bb2 Bf7 Qcb7 Rd3 Rd8 Nec3 Qba6 Kf3 Qc8 Ke3 Bd2+
4R3/1N1p2Bk/1nqB4/3P1N1K/4npN1/p2R3r/bQ1rBrPp/1qR3n1 w - - 0 1 legal: proof: b4 c5 a4 e5 h4 g5 f4 exf4 c3 gxh4 Ra2 b5 axb5 cxb4 Ra3 b3 Ra1 Bb4 cxb4 Qe7 Ra5 Qg5 Ra1 Qd8 Kf2 Kf8 Kf3 Kg7 Kg4 a5 e4 f5+ Kh5 f3 d4 f4 d5 b2 e5 f2 e6 a4 e7 h3 e8R h2 b6 Qf6 b5 Na6 b7 Nc7 b8B Ba6 b6 Qc6 b7 Bc4 Nh3 Ba2 Na3 b1Q Be2 f1R Qc2 Rf2 Rg1 h1N Nc4 h6 Qb3 Kh7 Rd1 a3 Qb2 Ra4 Bd2 Na8 Bc3 Nb6 Ne3 Rd4 Bd6 Rd2 b8N Ng3+ Kg4 Rd3 Na6 Rd2 Bg7 h5+ Kh4 Nf6 Nc5 Nfe4 Nf5 Rf1 Nb7 Rf2 Bd3 Ne2 Bb5 Qbc2 Rac1 Ng1 Ba6 Qb1 Be2 Ng3 Kg5 h4 Kg4 Ne4 Kh5 Rf1 Nf2 h3 Ng4 h2 Rc3 Rf2 Rdc1 Rf8 Rb3 Rf6 Rd3 Rg6 Ne5 Rg3 Ng4 Rh3+
1r2QqR1/p1kN2pR/3Np3/1P1q1B2/b2n2rB/1Pq1pK2/2R5/1n1NB1r1 w - - 0 1 illegal: No possible last move
1n1nKB1N/4Q3/P2p2pp/r2p2R1/B1b2b1n/k1rB1P2/2r1N3/2R1nN1R w - - 0 1 legal: proof: g4 b5 b4 a5 h4 axb4 d4 c6 d5 cxd5 f3 f5 gxf5 Ra6 h5 Qc7 e3 Qf4 h6 Rxh6 exf4 Rh2 c4 e5 a4 Ke7 c5 e4 c6 Kd6 c7 Kc5 a5 e3 f6 d6 f5 e2 Kd2 e1N+ Ke3 b3 Kf4 Kb4 Kg5 b2 f7 Ng2 f6 Ba6 c8B Nh4 Ne2 Ne7 Nd2 b1N Bd7 Nec6 Qe1 Na3 Bb2 Ka4 Rc1 b4 Be8 Be7 f8R b3 Rg8 Bc4 a6 h6+ Kh5 Kb4 f7 Nd8 f8N Bg5 Ba4 Bf4 Ng6 Nc2 Ba1 Rh7 Nh8 Ka3 Bf6 b2 Be7 b1R Bf8 Ng2+ Kg6 Ra1 Qh4 Nce1 Qe7 Ra2 Ng1 Rc2 Bd3 Rc3 Nf1 Nh4+ Kh5 Rb2 Ne2 Rb5 Rb1 Ra5 Rc1 Nhg2 Kg6 Ne6 Kf7 g6+ Ke8 Nh4 Rg7 Rc2 Rf7 Nd8 Rf5 Rg7 Rg5 Rf7 Qe5 Rb7 Qe4 Rb3 Qe7 Rbc3
n2Br2R/r5QN/R1r3N1/2rqP1rp/1B2R1pK/1p2p2N/3nP1kB/6r1 w - - 0 1 legal: proof: b4 a5 h4 axb4 h5 b5 Nc3 b3 h6 b2 Nb1 b4 c3 b3 Qc2 gxh6 Nh3 h5 Qe4 h4 Ng1 Bg7 Qc2 Bd4 Qd1 Bc5 g4 f5 d3 e5 g5 e4 Bg2 e3 Bh3 Bb4 cxb4 Bb7 Bg4 Be4 dxe4 fxg4 a4 Kf7 f4 Kg6 f5+ Kh5 g6 d5 b5 c5 g7 h3 a5 Kh4 f6 Kg3 a6 h2 f7 d4 f8B h6 b6 c4 b7 d3 a7 d2+ Kf1 c3 Na3 b1R Bb2 c2 Nc4 c1R Ra6 Nf6 g8N Qc8 Nh3 Ra1 Ne5 Rc6 Bb4 Nbd7 b8B Ra5 Qa1 Qb7 Ng6+ Re5 Bc7 Nb6 Bd8 Rg5 Bd4 Rac8 a8R Qf7 R8a7 Qd5 Re7 Na8 Ba7 R8c7 Bb8 Rc5 Re5 R7c6 Qd4 Rh7 Bd6 Ra7 Qb2 Nd7 Nf6 Ndb6 Nh7 Nc4 Ngf4 Kh4 Kg2 d1R Qa1 Nd2 Ng6+ Kh5 Kg3 Re1 Rf1 h1R Rf8 Rec1 Rh8 Rhg1+ Kh2 Rcf1 Re7 Rf8 Qg7 Rgc1 Kg2 Re8 Bh2 Rd1 Kg3 Rf1 e5 Ra1 Rd7 Rg1+ Kf4 Qg2 Rd4 Qd5 Ngf8 Kh4 Rc4 Qd6 Re4 Qd5 Ng6+ Kh5 Ne7 Kh4 Rg8 h5 Rh8 Rgg6 Kf5 Rb1 Bg1 Kg3 Bh2+ Kg2 Kf4 Kh1 Kg3 Rg1+ Kh4 Rg5 Ng6 Kg2
4KN1R/2P4n/3Bp3/1p1pp3/n2RR2Q/4pp1P/krbNr1q1/b1BN2B1 w - - 0 1 illegal: Other
2b1KRBk/qn1r2b1/3rb3/qr1N1RB1/3P2N1/2Rb4/PbQ1nBq1/1nN5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 Kf3 f5 e4 Kf7 d4 Kg7 g4 c5 d6 h5 e5 h3 g5 h2 g6 b3 e6 b2 d7 b4 e7 c4 e8R h4 Qd3 h3 Qe4 c3 Qe3 c2 Qe4 b3 Qb7 Nh6 Qb4 Na6 Ne2 Ra7 Qa4 Qa5 d8B Nc5 Nec3 Nb7 Be3 c1B Nd2 b1N Bg5 b2 Rg1 h1B+ Rg2 h2 Ke2 f3+ Kd3 f2 Kc4 f4 Qd1 f3 Rg3 Nf5 Rh3 Rh6 Nb3 Kh8 Nd5 Ng3 Qc2 Ne2 Re5 Bg2 Rf5 h1Q Rg3 Bh3 g7+ Kg8 Bg2 f1Q Bf2 Qh2 Bh1 Rd6 Bg2 Kh7 g8N Kh8 Nh6 Bg7 Ng4 Qfe1 Bh1 Qa3 Kb5 Qg2 Bg1 f2 Rc3 f1B Bf2 Rd7 Kc6 Ra8 Rc5 Qa7 Rc4 Qea5 Rc3 Qg1 Be4 Qg2 Bd3 Nf4 Bb5 Bd3 Bc4 Ne2 Bd8 Nd2 Bg5 b1R Rf8+ Kh7 Rf5 Bb2 Nc1 Kh8 Bb3 Ba3 Bc4 Rb5 Rb1 Rb8 Rbb3 Bb2 Ra3 Be4 Rcf3 Bd3 Rc3 Nb1 Bb3 Re7 R3f4 Be6 Bc4 Rg8 Rf8 Bc8 R4f5 Rd7 Nh2 Be5 R5f7 Qg1 Nb6 Rd8 Bb3 Bhf5 Ng4 Rd6+ Kc7 Bfd7 Rf5 Qg2 Bc4 Kh7 Bb3 Rg7 Bg8+ Kh8 Qd2 Nc5+ Kd8 Be6+ Ke8 Nb7 Nd5 Rgd7 Qc2 Bg7
R1qR4/3n4/r1nnN2B/1bb1PqN1/3R1bP1/rr3B1q/nK1nB2k/3QN3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 b6 a5 b7 f3 b5 f2 b6 h3 c5 f4 c6 h2 c7 d3+ Kc3 a4 Be3 d4+ Kb2 a3+ Kc1 h4 Be2 f1N Qa4 d2+ Kc2 d1R Qe8+ Ne7 Bf3 d3+ Kb3 d2 Qc6 a2 Qc2 h3 Bc5 Ra3+ Kb2 Bd7 c8B Nec6 Be2 f3 Qb3 Kf4 Bb5 Kg3 Bd3 f2 Qg8 Rh6 Bb4 Bc5 Nc3 Rc1 Qd5 Rb1+ Kc2 d1N e5 Nd2 Be2 f1Q Nf3 Rbb3 Ne1 Qf5+ Qd3+ Be3 Bf8 Qe8 Rf1 h1N Rf4 h2 Rd4 Nhf2 Ne4+ Kh3 Bg7 h1Q Ng5+ Kh2 Kc1 Re6 Bh6 Bf4 Qc2 Nc3 Qd1 Nfe4 Kc2 Na6 b8R Nac5 Bb7 Nd6+ Kc1 Qf3 Rd8 Qh3 Ba8 Qg8 b7 Be8 b8N Nd7 Na6 Rf6 Rb1 a1B Nc5 Qf8 Nce6 Qh8 Rd3 Na2+ Kc2 Bd4 Ra1 Bc5 Bb7 Rc3+ Kb2 Qg8 Nd4 Qc4 Nde6 Qa6 Rd4 Qa8 Bf3 Qc8 Ba6 Rg6 Bae2 Rd3 Rc1 Re3 Rcc4 Red3 Ra4 Rdb3+ Ka1 Rf6 Ra8 Ncb4 Qc2 Nf7 Nd3 Nb6 Nf8 Bb5 Qd1 Nd7 Ne1 Rfa6 Nfe6 Nc6 Ra7 Nd6 Ra8 Rd3 Kb2 Rdb3+
BB1b3n/RnP1n1rN/n2R3B/r1NbR3/n3q2r/2q1Nk2/3Q1Pn1/2Kn4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 Kg5 b4 Kf4 b6 d5 b7 h5 b5 e5 b6 a5 g5 h3 c5 h4 c6 h2 g6 h3 c7 d3 g7 e3+ Kc3 a4 Kb2 a3+ Ka2 e4 Qh5 d2 Qe2 d1N Qb5 d4 Nf3 d3 Bg2 d2 Qc4 e2 Nd4 e1N Rg1 h1Q Qc6 e3 Rf1 h2 Rg1 e2 Kb3 a2 Nf5 Nf3 Kc2 e1N+ Kb3 Nc3 Kb2 Qd3 Nh6 Be7 Bh3 Ra5 Qd5 Bd8 Nf5 Nh4 Rg6 Be6 Bg2 Ne7 g8N Na6 b8R Rh7 b7 Rg7 Nf6 Bf7 Bf3 Neg2 Nh7 Qe3 Re6 Nhg6 Re5 d1N+ Kc2 Be6 Qd2 Na4 Nc3 Bd5 Ne4 Nh8 Nc5 Qe1 Ra8 h1R b8B Rh4 Ra7 Qe2 Rb1 Qe1 Rb6 a1N+ Kb1 Nb3 Be4 Kg4 Rd6 Qc3 Ne3+ Kf4 Bf5 Qh1 Bd7 Qe1 Bc6 Kf3 Ba8 Qe2 Qb2 Qec4 Qd2 Qe4+ Qc2 Rb5 Nf1 Kg4 Bh6 Kf3 Ne3 Na5+ Kc1 Nb7 Nf5 Qb3 Ne3 Ra5 Qd2 Qc3+
nRr1Rnbn/4B1Q1/5N2/4RB2/B4NP1/Kbbnq3/1bN3qP/1k1rbn2 w - - 0 1 illegal: No proof kernel
3R3b/1n3bRb/qQ1qr2B/2N2rKB/1q6/k3nB2/Pb2PRnN/n3Nn2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 g4 Kc5 g5 b5 d3 h5 d6 f5 d7 b3 d4+ Kb4 g6 c5 d5 h3 d6 b2 g7 c4 Qd4 h4 Qd1 c3 Bd2 h2 Qc1 h3 Be1 Ne7 g8B Ng6 Bh7 Ra5 Nd2 b1B Ne4 Nc6 Qd1 Ka3 Bh4 b4 Nf6 c2 Bg2 c1B Bg5 b3 Nh5 b2 Ng3 Bg7 Nh5 Nh4+ Kf2 f3 Kg3 f2 Bf6 f1N+ Kf2 f4 Bf5 f3 Qc2 Re8 Bd3 Bh8 Bg5 Re6 Ng3 Rf5 Bh6 Ne3 Nf1 Na5 Kg3 f2 Qc7 Nb7 Bf3 Nhg2 Qb6 Bc2 Bde4 b1N Bh5 Bcb2 Nf3 Nd2 Ne1 Nb3 Rg1 h1Q Bef3 h2 Rc1 Qf6 d8N Na1 d7 Qd4 Rd1 Qb4 Rd4 Bb3 Rf4 Bd5 Nc6 Be4 d8R Bd7 Nb8 Be8 Na6 Bf7 Nc5 Bb1 Nd2 f1N+ Kh3 Nh4 Rg7 Nhg2 Bfg4 Qg1 Ndf3 h1Q+ Nh2 Qf2 Rfd4 Qf4 Bf3 Qd6 Rf4 Nd5 Kg4 Qg1 Qc7 Qgd4 Qb6 Qdc4 Qc6 Qa6 Qb6 Rff6 Kg5 Nde3 Be4 Bd3 Rf2 Bb1 Bc6 Bh7 Bcf3 Rf5#
RBQ3Kn/B4N2/b2R4/bR1b1P2/qqqr2b1/k2Pb3/1nB3nN/3r2Nq w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 h5 Kf4 a5 Kg5 e5+ Kg6 e3 Kf7 c3 f4 c4 b4 a4 g4 e2 f5 e1Q b6 c2 b7 c3 g5 a3 b5 Kc5 b6 Kb4 g6 e4 d3 h3 g7 a2 Qf3 e3 Qe2 h2 Bd2 c1B Nf3 h4 Qd1 e2 Bg2 h3 Bf1 Ra4 Qc2 Qd7+ Kg6 Nc6 b8R Na5 b7 Nc4 Ng1 Nh6 g8N Nb2 Bg5 Be3 Qc1 c2 Nd2 Nf7 Rb1 a1Q Ndf3 Ka3 Bg2 Qb4 Qf1 e1N Bf4 c1Q Ra8 Qcc4 b8B Ba6 Nh6 Rg8+ Kh7 Nh8+ Nf7 Be7 Nh6 Bd8+ Nf7 Ba5 Ba7 Rg4 Be5 Rd4 Kg8 Qdd5 Qe2 Qaa2 Bf1 Ng2 Qc2 Qe4 Beb8 Qa1 Ne2 Qf4 Rg1 h1B Qc1 h2 Qc2 Ne1 Rg6 Ng2 Neg1 Qh6 Rg3 Ka2 Rc1 Qbb3 Qc3 Nd1 Rg4 Qcc6 Rg6 Nf4 Ne5 Bf3 Rf6 h1B Nd7 Bg4 Ne5 Bd5 Rd6 Qh1 Be2 Ng2 Nef3 Qcb5 Qc8 Q3c4 Rc3 Nb2 Rb3 Qbc5 Rbb6 Q5b4 Nh2 Qd1 Rb7 Ra3 Rbb6 Qda4 Rb5 Rc3 Bf3 Rc1 Bd1 Ka3 Bc2 Rd1
NBnk2n1/2nN1b2/6bQ/KP2q3/P1rRqnB1/1r1Rq1Bn/1N1b4/R5b1 w - - 0 1 illegal: No proof kernel
2Rb1nbb/2R1br2/q1q1P3/2NQ4/1q1n1Pb1/BNB2Bn1/4R3/K1nN2kr w - - 0 1 illegal: No proof kernel
2B3Qr/4PrbR/n1b1Nb1N/NB4q1/2K2q1R/6q1/R2Pk2r/2Brn1rb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Kd6 Ke2 Ke5 g4 Kd4 g5 a5 b6 f5 g6 h5 b7 c5 e5 f3+ Ke1 f4 e6 h3 b5 h2 g7 h4 b6 h3 Ba3 f2+ Ke2 c3 Qb3 c4 Qb5 f3+ Kd1 a4 Kc2 Ne7 g8B Bg7 Qe8 Bd7 Bh7 Nec6 Bf5 Ne5 Be4 Ra7 Qg8 Na6 b8N Qg5 b7 Bc6 Qe8 Nd3 Nd7 Ne1+ Kc1 c2 Kb2 c1R b8R Rd1 Ne5 Rf7 e7 c3+ Ka2 c2 Qg8 c1B Bb5 f1R Ng4 f2 Bf5 Bb2 Bc8 Ke4 Ne2 Kf3 Ra8 Rg1 Nh6 f1Q Nf4 Bbf6 Bc1 a3 Kb3 a2 Ne6 Qfg2 Kc4 Ke2 Na3 Q2g3 Rb1 a1Q Rb2 Qb1 Ra2 Qbf5 Ra7 Qff3 Rd7 Qff5 Rd4 Qf1 Nc2 Qff4 Na1 Rg2 Nb3 Rf2 Rf1 h1R Na5 h2 Rg1 Rg2 Rf1 Rhg1 Rf3 Qf2 Rh3 h1B Rh5 Q4g3 Rdh4 Qff3 Nf5 Rh2 Rh7 Qff2 Nh6 Qff4+
qN1R3N/Q1Bb3B/n3rNb1/1R2nk2/2br1bb1/8/1PrP3r/K2bRb1B w - - 0 1 illegal: No proof kernel forced: bxDB
2BR2QN/n1q1Nq1P/RB1P2Br/4bR1r/2b1Kn2/3q4/2k2Nnr/q2r3b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 e4 Kf6 b4 Ke5 h4 Kd4 e5 f5 b6 c5 d3 a5 h5 g5 b5 a4 h6 c3 b7 c4 e6 a3 e7 a2 e8B f3 b6 c2 Bc6 f4 Bb5 g3+ Ke1 g4 Kd2 g2 Rh2 g3 Na3 c3+ Ke1 f2+ Ke2 Ra5 Kf3 Nc6 b8R Bb7 Nb1 Na7+ Bc6 Rh5 Ba3 c1Q Be7 c2 Nh3 g1Q Be4 g2 Nd2 Kc3 d4 Nf6 d5 Bg7 Ba6 f1B Bc5 Bc4 Bg6 Qf1+ Nf2 g1R Ne4+ Kb3 Qd4 Rh1 Nd6 Qb1 Qe5 c1R Nf7 Qc7 Qe8 Rd1 Rd8 Qbd3+ Be3 Bc6 b7 Kc2 b8N Rh7 Rg2 R1h2 Rg5 Ba8 Rf5 Bh8 Rb1 a1Q Nc6 Bb7 d6 Nd5 Qg8 Be5 Rb6 Ba8 Kg4 f3 Ne7 Nf4 Bc8 Bb7 Nh8 Be4 Nh3 f2 Ra6 Bh1 Bb6 Rf7 h7 Rf6 Be8 Rfh6 Bf7 Qd5 Be8 Qfd3 Bg6 f1N Nf2 Ne3+ Kg3 Neg2+ Kg4 Qf1 Kg3 Qe6 Kf3 Qf7 Ke4 Qd3+
1n1qb3/NBP1nq1n/6R1/3bBnrR/N1k2b1R/Pq4B1/1Q2N3/1K1r1b1r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 g4 b5 f4 e5 c4 d5 Kc2 h5 f6 Ke6 c5 e4 a3 e3 g5 b3+ Kb2 e2 c6 e1N f7 h3 g6 d3 g7 d2 c7 b4 Qc2 d1Q Be2 d4 f5+ Kd5 f6 h2 Bh6 h4 Qc1 d3 Qe3 h3 Bg5 d2 Bd3 Qf3 Bb5 d1R Bh6 Ne7 g8N Ba6 Bc6+ Kc4 Bf4 Bh6 Bd6 Bf4 f8R Qf1 f7 Nf3 Nf6 Ng5 Nc3 Nh7 Ng4 Rg8 Re8 Rg5 Bb7 Bb5 Rg8 Be8 f8B Ra6 Be5 Rh6 Rc1 Qf2+ Ka1 b2+ Ka2 b1B+ Ka1 b3 Na4+ Bc2 Qb6 b2+ Ka2 Qf1 Ne2 Qf3 Ra1 Bd3 Rg6 Qfd5 Bfg7 Qf7 Bd6 Rhh5 Bge5 Rh4 Nec3 Bf1 Ne2 b1B+ Kb2 Be4 Ka2 Bd5 Qb2 Bc1 Bg3 Bf4 Be5 Rhh5 Nf2 Rh6 Nd3 Rh4 Nb4 Rh6 Rg1 h1Q Nc6 h2 Na7 Qf3 Rh1 Qc3 Rc1 Rhh5 Kb1 Rh6 Rg1 h1N Rg2 Rh3 Rh2 Rh6 Rh4 Rhh5 Bf2 Ng3 Be1 Ngf5 Bf2 Rg1 Bg3 Rg5 Rh5 Rd4 Rd1 Qb3 Rd3 Rh1 Rf3 Bd2 Rf4 Bc1 Rg4 Bf4 Rgh4 Rd1+
NkN3NB/1b2b2q/3q3b/R2nrP1Q/4Bnq1/3b2qR/4PrR1/1b2K1Bb w - - 0 1 illegal: No proof kernel
1rKQ1b2/1Rn4B/2b2r1n/1Nrn1P2/RNn3nP/3B1rbR/1b2q3/B2kN3 w - - 0 1 illegal: No possible last move, all moves rejected
N2k4/rB4Nr/1RP5/b5Pq/b5n1/R1bqBNBb/Rn1QbK1b/2n2n2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 g4 d5 c5 h3 f5 h4 b6 a4 f6 a3 c6 d3 b5 d2+ Ke2 d4 b7 d3+ Kf2 h2 g5 h3 b6 a2 Nf3 e3+ Kg3 e2 Qb3 e1N Qa4 d1B Be2 d2 Nd4 e4 Bc4 e3 Nc3 e2 Ba3 Bd6+ Kf2 Ra7 Qa6 Nd3+ Ke3 e1B Qa5 Nb2 Bc5 Nh6 Bf1 Nd7 b8R Ba4 b7 d1B Nd5 Be2 Qd2 Ne5 Nf3 Rh7 Nb6 Ned3 Na8 Nc1 f7+ Ke7 Rg1 h1Q f8N h2 Rg2 Bh3 Ne6 Qd7 Ng7 Ng4+ Ke4 Qd8 Be3 Bc7 Rf2 Ba5 Kf4 Qd3 Kg3 Bc3 Rg8 Ba5 b8B Bc3 Rb1 a1B Bbf4 Be5 Rb8 Bc7 Rb3 Kd8 Ra3 Be5 Qc2 Ba5 Qd2 Nc4 Rb6 B1c3 Bg2 Qd1 Bf1 Nb2 Rg2 Nf6 Kf2 h1N+ Kg1 Ng3 Kf2 Qb3 Rh2 Qf7 Rg2 Qh5 Rh2 Bed1 Be2 Nf1 Bg3 Qd5 Bb5 Be2 Ba6 Qd3 Bb7 Bg2 Rh4 Bh3 Ra2 Bb8 Rhb4 Bbe5 Rb3 Bb8 Rba3 Bc7 Bh4 Bh2 Bg3 Ng4+
4q1r1/2n1k3/R3B2N/1nrb3Q/1r1b1p2/N1bP1PbB/4Kq1R/1Bbn1NR1 w - - 0 1 illegal: No possible last move, all moves rejected
2RqnN2/q2r1R2/kN2N1r1/P5Q1/b1RB4/qpq1n2B/1P1n4/bK1B2qr w - - 0 1 illegal: No proof kernel
KN1Qq2B/3nB3/bNRq3P/3rB1pR/5b2/2Nnr1P1/b3n1kq/1qq1R3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Nd2 b5 axb5 h5 Bh3 h4 Bg2 h3 Nb1 hxg2 Kf2 Ke7 Kf3 Kd6 Ke4 g5 h4 a5 c4 f5+ Kd3 Ke5 e4 d5 b4 a4 h5 a3 b6 f3 b7 f2 h6 f1Q+ Qe2 f4 b5 a2 b6 f3 c5 f2 c6 Be6 c7 Ra5 c8R Bd6 Rc2 Qe8 Rh5 Nd7 b8B Ngf6 b7 Ng4 Bb2 Qc1 Nd2 f1B Rc6 Rh7 Ba7 Re7 b8B Bg8 Rb1 a1Q Bc5 Qa2 Bc3 Re6 Ra1 Bc7 Be7 Qab2 Nb1 Bd6 Nh3 g1N Nf4 Qa2 Bb2 Bc7 Nc3 Qcb1+ Kd2 d3 Qd1 d4 Nfd5 Nf2 Nb6 Bd6 Bc7 Ne2 Bb8 Rd5 Bc7 Rf6 Bb8 Rf3 Bc7 Ke6 e5 Kf5 e6 Re3 Bb8 Bf4 Be5 Kg4 Rc4 Ra5 Nbd5 Qg6 Nb5 Qc2+ Ke1 Kf3 Bh8 Nb6 Bd6 Qe4 Rc1 Qcb1 Ba1 Qac2 e7 Qe6 e8N Qh3 Rc5 Qa4 Nef6 Qh2 R5c4 Kg2 Kd2 Qb2+ R4c2 Ng1 Nd7 Qba3 Nb8 Qa2 Na3 Qe8 Nb5 Qb1 Be7 Bf7 Rc6 Bg8 Qg4 Be2 Qc8 Nd7 Rd1 Qc1+ Ke1 Be6 Nb6 Ba2 Qc7 Qa3 Kd2 Qd6 Re1 Bf1 Na7 Rd5 Nb5 Be2 Qd8 Bf1 Kc1 d2+ Kb2 d3 Kc3 d1Q Bb2 Qb1 Ba1 Be2 Bb2 Qe6 Kb4 d2 Ka5 d1Q Ka6 Qd6 Kb7 Qdc1 Bbe5 Bd3 Nc3 Ne2 Ka7 Ba6 Ka8 Nd3
3nb1B1/2b1r1rq/1np2R2/1P5Q/nb2qK2/k1BR4/PNnR1nq1/3BNN2 w - - 0 1 illegal: No possible last move
1q3r2/1P1BnqN1/rN4Bb/NK1P3r/2rB2Q1/1n3r2/3Rpnbk/3R2Rq w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 d4 Kd6 b4 h5 g4 a5 f4 c5 f5 e5 g5 c3 f6 c4 g6 h3 d5 c2 g7 c3 f7 e3 Kd3 h4 Kc4 a4 b6 e4 b5 Ke5 b7 Kf4 b6 Kg3 Be2 a3 Qf1 h2 Bb2 c1R Qf6 h3 Qe6 a2 Bh5 c2 Qc6 e2 Kb5 e1Q Be2 e3 Bd4 Ne7 g8B Bh6 f8N Nd7 b8R Qf1 Bh7 Nc5 Nd2 Nb3 Ne6 Qf7 Ngf3 Rf1 Qc4 c1R Ne5 Rf3 Rd1 h1Q Nd7 h2 Ng7 Ra6 b7 Rf8 Nb6 Bh3 Rc8 Bg2 Bg6 Kh3 Bed3 e2 Bdf5+ Kg3 Rb1 a1R Bd7 Qc7 Qa4 Qb8 Rc2 Ra3 Ra2 Rc4 Rg1 Rf5 Rbd1 Rh5 Qb4 Nc1 Rc2 Rf3 Rb2 Nb3 Rc2 Rc6 Ndc4 Rc7 Na5 Rc4 Rgf1 Qg1 Rcd2 h1N Rfe1 Nf2 Qa4 Qh1 Rg1 Rcc8 Ba1 Rcc3 Qg4+ Kh2 Bb2 Rc6 Bd4 Rc4
1NB4K/P1QP2rR/N2n2nn/1R1b1k2/3B3p/1N2n2n/1b1q1b1R/2qq1Br1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 c5 a4 b5 d4 b3 e3 h3 a5 h2 d6 c4 a6 c3 a7 h4 d7 f3 d5 b4 d6 b2 Qd2 c2 Qg2 f2 Kd5 b3 g5+ Kf5 g6 Nh6 g7 Nc6 g8B Rh7 Qg7 Bb7 Nd2 b1Q Ra5 b2 Nb3 Ne5+ Kd4 f6 Nf3 Bd5 Rb5 Ng6 Ne5 Be7 Bd2 Qd1 Nc6 c1B Nb8 b1N Qf7 Qa5 d8R Rg7 Rd7 Na3 Rc7 Nc4 e4+ Kg4 e5 f5 e6 f4 Bh7 f3 Bg8 Bf8 e7 Qa2 e8N Bb2+ Kd3 Qc1 Bc3 Kg5 Qe7+ Kf5 Kd4 Qa5 Rcb7 Qa2 Qc7 Be7 Rg1 h1N Rg2 Bg5 Rh2 Be3+ Kd3 Qa5 Bd4 Qb4 Na6 Qa5 Nf6 Qae1 Bf7 Rag8 Nd7 Qb4 Ndb8 Qbe1 Bg2 f1N Be8 Bf2 Bd7+ Qe6 Bc8 Nfe3 Bf1 Qd7 Ra5 Ng3 Rc5 Ne4 Rcb5 Ng5 R7b6 Qe6 d7 Nh3 Rd6 Qf6 Re6 Nd6 Re7 Nh8 Rf7 Rg1 Rh7 R8g7 Be5 Qg6 Bc3 Qg2 Kd4 Kg4 Ke5 Ng6+ Kf6 Bb7 Rf5 Bd5 Rh1 Qh2 Bd4 Qf4 Rh2 Qd1 Bc3 Qfd4+ Re5 Q4d2 Bd4 Q1c1 Re4+ Ngf4 Be5 Be1 Bc4 f2 Bb5 f1Q Rb4 Rg8 Bd4 Bf2 Bd3 Qfd1 Bf1 Ng6 Rb5 Re8 Kg7 Kf5 Qd8 Nf8+ Kh8 Re7 Qb6 Reg7 Qc7 Ng6+
2B1b1bk/pR2KR2/1Nn3r1/Q1q2qr1/1BN2B2/1P1N3q/q2r1nP1/2Rqb3 w - - 0 1 illegal: No possible last move
Q7/1n1NR1rb/1R2R2B/2pPN1rB/rNPr3b/2K4n/2Br4/kr3rqb w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 g4 Kd7 c4 Ke6 d4 a5 Kd2 c5 b4 h5 g5 f5 d5+ Ke5 g6 Kd4 b6 e5 b5 e4 b7 f4 g7 f2 b6 a4 Ba3 h3 Qf3 h2 Qg3 h4 Nh3 e3+ Kc2 e2 Qg6 e1R Bd3 f3 Qh6 Re5 Qd6 Nc6 b8R Nh6 g8B Nf7 b7 Qg5 Bc1 a3 Bf1 a2 Qh6 Ncd8 Qe6 Rh7 Nf4 h3 Bg2 Ra4 Qb6 Be7 Qc7 Bf5+ Kb2 Rg7 Rf1 h1R Rg1 h2 Ng6 Re4 Rf1 Rg1 Qc6 h1B Nc3 Qg3 Bh3 Bh4 Bh6 Ng5 Rae1 a1R Bh7 Rd1 Bg4 Nh3 Bh5 Rd2+ Kb3 Qh2 Na2 Rg5 Nb4 Qg1 Qa6 Reg4 Qa8 Bb1 Re7 Bd3 Rc8 Rf4 b8N Nb7 Rfe1 Bc2+ Kb2 Rfg4 Kc1 Kc3 Nd7 Rgd4 Rc6 Bb1 Rb6 Kb3 Nc6+ Ka2 Nb4+ Ka1 Qa6 Qg2 R1e6 Qg3 Nge5 Qg4 Bc2 Qg1+ Bd1 Bh7 Qa8 f1R Be8 Re1 Bh5 R2d3 Kc2 Rd2+ Kb3 f2 Kc3 f1R Bc2 Rb1
3KR1B1/q2nNb2/2bPb3/2B1QN2/p1P2bbb/r1rR1R2/b1N3kn/3B2n1 w - - 0 1 illegal: No proof kernel
1BbRNn2/br1q4/P1b1bRR1/P2Q1r1B/1pn1N1Bb/6N1/1r2b2k/1b2K3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 e4 Ke7 h4 Kd6 a4 Ke5 c4 f5 a6 d5 c5 g5 a5 b5 c6 g3 c7 d3 h5 b4 h6 d2+ Ke2 g2 h7 d4 Qb3 d1B+ Kd2 g4 Rh2 f3 Nc3 Kf4 e5 Kg3 e6 f2 e7 d3 e8R f4 Be2 f1B Na2 f3 Qc4 f2 Bf3 Bfe2 Bd5 f1B Ba3 Ba4 Qb5 Nd7 Qb8 Ra7 Re5 Be7 Reh5 Nf8 Rh6 Bh4 Bf3 Ne7 Qb5 Rb7 Rg6 Nc6 Bb2 Ne5 Ke1 Qd7 Nc3 Nc4 Qd5 Bc6 Rd1 Rg8 Rf6 Rg5 h8N Re5 Nf7 Rf5 Nh3 g1R Nf4 Rg2 Nd6 Rf2 Ne8 Bh3 Rh1 Rh2 Rg1+ Rg2 Nh5+ Kh2+ Ng3 Rf2 Nh1 g3 Bh5 g2 Ne4 Bhg4 Nhg3 Bh3 Rf1 g1B Be5 Rg2 Rg6 Ba7 Ng7 Rff2 Ne8 Be6 Rd2 Rf5 Bf4 Bd1 Rff2 Bc2 Bd6 Bb1 Rd1 Rg5 Rff6 Rb2 Be5 Rf5 Bf4 Qg7 Bd6 B8d7 c8B d2+ Ke2 Qh7 Bb8 Bf7 Rc1 d1B+ Ke1 Rg5 Qc5 Be2 Rd1 Bh3 Rd8 Bfd5 Be6 Qe7 Bf7 Bc8 Be6 Qd7 Beg4 Be6 Qd5 Rf5
1K6/2N2n1B/Rr2QNN1/3n4/4nbRr/1n1rB1bP/bP4pR/Bk1q1q1q w - - 0 1 illegal: Other
1Nqr3k/2b1Bn1r/b1n2nBP/5b1p/rN1q2B1/3QKP1R/R4NR1/1q1b4 w - - 0 1 illegal: No proof kernel
nn1B1NB1/2rP4/p5nR/nrb5/b1N1qPR1/q1Rb3K/4Q2r/Nk3q1B w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kf7 f4 Ke6 Kf2 Kd5 b4 e5 g4 c5 Kg2 h5 g5 c3 g6 e3 b6 Ke4 d5 e2 b7 e1N+ Kh2 a6 g7 h3 d6 c2 b5 h4 b6 c4 Be3 c1R Qb3 c3 Bc4 c2 Bc5 Bd7 Qg3 Ne7 g8B Ng2 Qc3 Nd5 Na3 Rh5 Bb5 Qe7 Bc4 Ba4 d7 Nc7 Bd4 Qb4 Be2 Bc5 Nb5 Qa3 Bf1 Ra7 Bb3 Na8 Nc7 Re1 Bf7 c1N Nf3 Nb3 Qb2 Na5 Ne6 Re2 Rc1 Kd3 Nf8 e4 Bf6 e3 Nd4 Re5 Nc2 Kd2 Ne6 Rf2 Be7 e2 Bd8 e1Q Bg8 Qe4 Nf8 Rg5 Qb5 Kc3 Qc4+ Kb2 Na1 Rd2 Rc2+ Kb1 Rc3 Rb2 Qe2 Rb5 Be7 Nbc6 b8R Rc7 Re8 Nb8 b7 Rg6 Bd8 Rg7 Re7 Rg4 Rg7 Rg3 Qe3 Rg4 Kg1 h2+ Kf2 Rg3 Rg4 h3 Be2+ Ne1 Kf1 Rg2 Bf3 Nd3 Qf2 Ne5 Qe2 Nbc6 b8N Ng6 Rg1 h1Q Rh4 Nd4 Nc6 h2 Ne5 Ndc6 Nc4 Nb8 Rh7 Rg5 Rh6 Qg2+ Ke1 Qh3 Rg4 h1B Ne6 Bg2 Nf8 Bf1 Bh1 Qhf3 Qe3 Qd1+ Kf2 Bd3 Kg3 Qf1 Kh2 Qe6 Qe2 Qe4 Rgh4 Rg3 Rg4 Rg2+ Kh3 Rh2+
1R1b2rN/p4r2/1b2r1nr/2PNN2R/1KR5/B4r1B/Pn2Q1q1/bkn1B1r1 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 b5 h5 bxc4 h6 gxh6 Rh3 h5 Rh1 h4 d3 c5 Nd2 c3 Kf2 c4 Ke1 c2 Nb1 c3 Kf2 Ba6 Ke1 Bc4 dxc4 Qf6 Qd5 Qb6 Qd1 Qd8 b4 Ke7 e4 Ke6 g4 Ke5 b5 h5 b6 f5 b7 d5 g5 d4 g6 f3 g7 h3 Bh6 c1B Bg2 d3 Qc2 Kd4 e5 h2 e6 f4 e7 d2+ Kd1 h4 e8N f2 Bf1 h3 Ke2 d1N Qf5 c2 Qg6 Bb2 Kd2 c1B+ Kc2 f3 Kb3 Qg5 Nd2 Bc5 Qe6 Bb6 c5 Qg2 Bb5 f1R Bg5 f2 Qc8 Ne7 g8R Nbc6 b8B Rh6 Nc4 Kd3 Bg3 Ng6 Ne2 Nd4+ Kb4 Kc2 Qa6 Nb3 Nf4 Bg7 Ned6 Nb2 Rh8 Rg8 Bd7 Bf6 Bc8 Bfd8 Nf7 Rg1 Nce5 f1R Bd7 Rf3 Be1 Be3 Qb5 Nc1 Nd5 Bd4 Bgd2 Rh7 Qe2 Rhg7 Rh4 Rh7 Nh8 Rhf7 Bg3 Re1 Rb1 Rg1 Rh5 Re1 Rg1 h1R Be6 h2 Bh3 Bg5 Rf1 Rg1 Rf2 h1R Bh4 Rg3 Rf4 Bgd8 Rg4 Re3 Re4 Ref1 Bhe1 R1f6 Rg4 Ref3 Rgh4 Re6 Rg4 Na4 Rb3 Bb2 Rc4+ Kb1 Kb5 R7f4 Rh6 Rc3 Bg4 Rcf3 Bb4 Bbc7 Ba3 Rf7 Rh7 Rh4 Bh3 Ba5 Rh5 Bac7 Rf5 Rh6 Rh5 Ba5 Rd3 Ba1 Rb3+ Nb2 Rbb4 Bac7 Rb3 Rb6+ Ka5 Rbf6+ Rb6 Rc6 Kb4 Re6 Rb8 Bb6
NNqN1rBB/3R4/P1n1p2B/b3Q3/4r1b1/3KP1R1/b1n1R3/1brkb1rr w - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 c4 f6 g5 fxg5 cxd5 gxh4 Qb3 h3 Qc2 Bd7 Qd1 Bc8 f4 Kd7 a4 Kd6 d4 g5 Kd2 h5 a5 c5 a6 b5 f5 h2 f6 g4 f7 c4 e3 c3+ Kc2 h4 Kd3 g3 Ke4 c2 Nf3 b3 Be2 h3 Qd2 b2 Ra4 b4 Bd1 g2 Kd3 g1R Ra2 b3 Ke2 Nf6 Qa5 Bg4 Qc3 Rh4 Na3 b1B Bb2 Nc6 Kd3 Qc8 Ne5 c1B+ Bc2 e6 Nd7 Be7 f8B Bd2 Nb8 Be1 Bh6 Bd8 Ba1 b2 Nb5+ Ke7 Nc7 Kd6 Ra5 Ba2 Rb5 b1B Rb2 Rg3 Rg1 h1R Qa5 h2 Qb5 Rgh3 Rg3 Rg1 Qa5 h1R Qb5 Ra7 Na8 Rf7 Qa5 Rf8 Qb5 Ke7 d6+ Kf7 d5 Kg6 d7 Kh5 d6+ Nd5 Qc5 Bda5 d8R R3h2 d7 Re2 Qd4 Ndb4+ Ke4 Ref2 Qe5+ R2f5 Bd3 Rg5 Re2 Nc2 Qb5 Rc5 Bh8 Na3 Qb2 Rc1 Qg7 Nc2 Qa1 R4h3 Qe5+ Kh4 Bb5 R3h2 Kd3 Rhf2 Bc4 R2f4 Bd5 Rb4 Be4 Ra4 Bh7 Re4 Rf3 Rc4 Bg8 Re4 Rf7 Kh3 Re8 Kh4 d8N Kh3 Rd7 Kh4 Qd4 Kg3 Qe5+ Kf3 Ree7 Bad2 Rg7 Ba5 Rg6 Bh3 Rh2 Bf5 Rh4 Kf2 Rg3 Bg4 Rh5 Beb4 Rf5+ Ke1 Rf2 Kd1 Re2 Be1
2R3B1/r1n1rB2/rk4N1/n2Kb3/b1RnN1n1/p3qPb1/R1P1r2B/2QN1n2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 g4 d5 b4 Kd7 b6 Kc6 f3 a5 g5 h5 b7 h3 g6 h4 g7 a4 Bg2 e3+ Kd3 h2 Bh3 a3 Bf5 e4+ Ke2 h3 Bg6 d3+ Ke1 e2 Kf2 e1R Bf4 d4 Nd2 e3+ Kg3 e2 Bf5 Nh6 g8B Bg7 Qb1 Rh7 Qa2 Bd7 Bg5 Qb6 Kf4 Na6 Ke4 Ra7 b8R Be5 Qb2 Nc7 Qc1 Re7 Bfh7 Nf5 Nb1 d2 Ra2 d1R Bg6 d3 Rc8 d2 Kd3 Qe3+ Kc4 Kb7 B6f7 Ba4 Nc3 Ka6 Qb2 Rb1 Qa1 d1N b5+ Kb7 Bf4 Nb2+ Kb4 Ra6 Nd1 Nc4+ Qb2 Na5 b6 Bf6 Bd6 Kc6 Bg3 Be5 b7 Ra7 b8N+ Kb7 Nd7 Ka6 Nc3 Rbd1 Re8 Rd6 Nf6 Kb7 Qa1 Rda6 Rc8 Kb6 Qb2 Rb1 Bf4 e1B Ne2 Bf2 Rg1 h1N Rg4 Re1 Nd1 h2 Qc1 Nhg3 Rh4 h1N Rg4 Ne4 Bh2 Neg3 Rc4 Nd4 Ne4 Nf1 Nf4 Re2 Ng6 Bh4 Bd5 Bhg3 Bdf7 Kb7 Kc5 Nf2 Nd2 Ng4 Ne4 Na8 Kd5 Kb6 R4c5 Qf4 Rc3 Qe3 R3c4 Nc7+
k1bb1rrn/8/NR2q2B/rR6/P2K3Q/BB2nnr1/b1PN2Np/R3r2n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 Kd3 h5 g4 e5 a4 d5 f4 Kd7 f6 Kc6 f5 Kb7 g5 b3 g6 h3 f7 e4+ Kd2 h4 g7 d3 Kc3 b2 f6 h2 Ra2 h3 Qg4 d2 Bg2 d1N+ Kd4 b4 Nd2 b1R Bf3 b3 Qh5 e3 Ba3 b2 Bg2 e2 Ra1 e1R Qh7 Qe8 Ra2 Qe6 Bd6 Nc6+ Kc5 d4 Bd5 d3 Ra3 Nh6 g8R Ne3 Ngf3 Be7 f8N Nf7 Nd7 Bd8 Rg6 Rg8 Bb3 Nh8 f7 Ne5 f8B Ra5+ Kd4 Ka8 Qh4 Rbd1 Bg7 b1B Bh6 Ba2 Nb8 Rf8 Rhg1 h1N R1g5 h2 Na6 Rg1 Be7 Rg3 Ne1 Rg8 Ng2 Rf1 Bc5 Rff8 Rf6 Qh3 Rb6 Qe6 Nf3 d2 Bb4 d1R+ Nd2 Nd3 Rgb5 Ne5 Be7 Re1 Bb4 Bb1 Ra1 Ba2 Ba3 Nf3+
2b1r2k/1bBn2b1/3QR1P1/q1r5/nBN5/p1P3N1/r1B2nRn/r1n1R1NK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 b4 Kf7 g4 Kg7 Kg2 a5 e4 h5 e5 d5 c3 h3+ Kh2 h4 g5 f3 g6 f2 e6 d3 b6 f4 e7 a4 e8R f3 b7 d4 b5 d2 b6 d3 Na3 Ne7 Rb1 Nd7 b8B Nc6 b7 Na5 Be2 f1R Qc2 d1N Bd2 f2 Rb4 Nb2 Rf4 Nb3 Rf5 Ra1 Re6 Qa5 Rff6 Nc1 Bdf4 d2 Nc4 d1R Rf5 Rd5 Qd2 Rc5 Bfd6 a3 Bf3 Na4 Bbc7 Kg8 b8N Bg7 Na6 Rh6 Rg5 Kh8 Ne2 f1N+ Kg1 Rh5 Be4 Nh2 Rg2 Rhd5 Qf4 Rd2 Bb1 Rda2 Bc2 Bb7 Qd4 Re8 Qd5 Bc8 Qd3 Rd5 Bb4 Rc5 Qd1 Nf1 Qd6 h2+ Kf2 h3 Ng1 Re5 Nc5 Rg5 Ne4 Re5 Nf3 Rc5 Rhg1 h1B Ng3 Nh2 Rge1 Kg8 Kg1 Kh8 Rf2 Bg2 Nh4 Bgb7 Rg2 Ng4 Nf3 h2+ Kf1 h1N Kg1 Ne3 Kh2 Nf2 Kg1 Nh3+ Kh1 Ng4 Ng1 Nh2 Bb1 Re7 Bf5 Re8 Bc2 Nf2+
2rB1qK1/R1nR3P/3RN3/2NnnpQq/2b2B2/n1kr1BbP/3Nn3/1b5n w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 exf4 b4 axb4 Qc2 d5 Qd1 dxc4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 a4 g5 e4 b5 h6 c3 d3 f3 h3 f2 h7 g4 a5 g3 a6 b3 a7 Kb4 d4 c5 d5 g2 d6 c4 d7 b2 Ke6 c2 Kf7 c3 e5 Bd6 e6 Ne7 Qd2 Bg3 Ra2 Na6 Na3 b1N Qd5 Nc7 Nf3 g1Q Nh2 Ba6 Ng4 Rc8 Qg2 Ned5 Bf4 c1N a8N c2 e7 Nd3 e8R c1N Nf6 Kc3 Nc4 b4 Nd2 b3 Be2 f1N Re6 b2 Rd6 Bc4 Bf3 Ne2 Ra7 Ne5+ Kg7 Qe8 d8B Qc5 Nd7 Na3 Rh2 Qb4 Nc5 b1B Rh1 Qh5 Rg1 Bh4 Qg5 Nfg3 Rd1 Nh1 Rd7 Re8 Rd6 Re7+ Kg8 Bg3 Rd7 Ng4 Rd6 Re3 Rd7 Ne5 Rd6 Ncb5 Nc7 Rd3 N7e6 Nbc7 Rd7 Bc2 Rb1 Qb8 Rb6 Bb1 Rbd6 Na8 Rc6 Qd6 Rca6 Nac7 Rb6 Qe7 Rbd6 Qf8+
3nRNB1/q1R5/qb1Q1q2/N2K1Np1/2nrP3/1Bq1RP2/nkbn3B/6rn w - - 0 1 illegal: No possible last move, all moves rejected
4rK2/5R2/2r1k1bB/1pb3Pq/bQP5/1NRqb1qn/2B3qq/1NRn1BN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 Kd3 e5 Ke4 d5+ Kd3 b5 a4 h5 f4 e4+ Ke2 e3 Kd3 e2 c4 e1B g4 h3 g5 h4 f6 b3 f5 b2 a5 h2 a6 h3 a7 Nc6 Ra3 Bd2 Ra6 Nge7 Qe1 Nb4+ Ke2 d3+ Kf3 d4 Kg4 Na2 Ra3 Qc7 Nc3 b1Q Bb2 Rh7 Ra6 Nd5 Nf3 Bc5 Bg2 Be3 Ra3 d2 Ba1 Rb8 a8B Nf4 Be4 d1B Rg1 Qb2 Nb1 h1Q Qb4 Ba4 Rc1 h2 Ng1 d3 Bf1 d2 Rb3 Qd4 Bc2 Rb6 Ra3 Qd3 Bc3 Kf8 f7 Ke7 f8R Rc6 Bg7 Nc3 Bh6 Nh3 Kh5 Qg2 f6+ Kd6 f7 h1Q Rb3 Bf5 Ra3 Ke6 Rb3 Ne4 Ra3 Qcg3 Rc3 Bg4+ Kg6 d1Q Rh8 Qhh2 Rf8 Rh8 Kg7 Nef2 Rd8 Bf5 Rd7 Bg6 f8N+ Ke5 Ne6 Re8 Rf7 Re7 Kg8 Qh5 Kf8 Nd1 Nd4 Kd6 Nb3 Ke5 Qa3 Ke6 Qb4 Re8+
nq4R1/5NQ1/1pPb2NB/1bP1q1NK/1q1r1qBn/1krR4/4R1qb/B2b4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 Ke7 e4 Ke6 a4 g5 h4 d5 c4 f5 e5 b3 a5 d4 a6 f3 Kg3 f4+ Kh2 b6 a7 f2 h5 b2 h6 d3 c6 d2 h7 f3 Kg3 Bd6 c5 Kd5 Qe1 d1B Bd3 f1Q Rh4 f2 Ba6 Qe2 Bd2 f1Q Bb5 Ba6 Rh2 Ne7 Rf2 Ng6 Nf3 Nh4 Na3 b1Q Nc4 Qb4 Ra3 Qc7 Rb3 Rd8 h8B Qe4 Ba4 Bb5 Re2 Na6 Rd3+ Qd4 Bf4 Qb8 e6 Nc7 Nce5 Rd7 Ng6 Kc4 e7 Qe5 Qf2 Rd8 Qg2 Qf2+ Kh2 g3+ Kh3 Qfd4 Bc1 Qdf4 e8N Rd7 Qg1 g2 Bg7 Rd8 Bb2 Rd7 Ba1 Rd8 Bh6 Rd7 Qf2 g1B Qg3 Bh2 Qg1 Qff6 Kg4 Qff4+ Kh5 g4+ Ng5 g3 Bc2 g2 Bb1 Qec3 Qd4+ Kb3 Qg7 g1Q Ba2+ Ka4 Bf7 Qg2 Be6 Qce5 Bg4 Rd8 Rd4 Kb3 Rd5 Bf8 Nd6 Be7 Nf7 Bf8 Rdd2 Rd4 Bd7 Bd6 Bg4 Rc4 Rd3+ Rc3 Rg3 Qb7 Rge3 Rd8 a8R Qb8 Rd3 Rd7 Ra7 Na8 Rc7 Be7 Rc8 Rd4 Rg8 Bd6
1K2nQ2/N1NkBrrq/P1n1r1b1/b1q2Rnr/4P3/2B2p2/N2n2R1/nR5B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f5 Kf3 h5 e4 b5 a4 c5 d4 h3 g4 h4 a5 b3 a6 c4 d6 b2 g5 c3 g6 c2 d5 h2 g7 h3 Nd2 b1R Qe2 b4 Nc4 b3 Nb2 Nf6 g8N Qe7 Qf2 Kd7 Bg2 Ra7 Nc4 b2 Na5 Ne8 Ne2 Nc6 Rg1 h1Q Bd2 c1N Bc3 Nb3 Nc1 h2 Na2 Rh5 Qf1 Rd1 Rb1 Na1 Qf2 Qh7 Ne7 Bh6 Rf1 Qg1 Bh1 Bg7 Qc5 Qd4 Qa3 Qc5 Rf2 Rb7 Rg2 Rb6 Qb4 Rg1 Qa3 Bd4 Qb4 Be3 Qa3 Bd2 Qb4 Kd8 d7 Kc7 d8B+ Kd7 d6 Be1 Rg8 Rg7 Nd5 Bd2 Nc7 Be1 Bg2 h1N Be7 Nf2 Bh1 Nh3 Rf8 Nb8 Nc6 Ng5+ Kg2 Bd2 Na7 f3+ Kg3 f4+ Kg4 f2 Rf5 f3 Kg3 Be1 Kf4 f1N Qa3 Nd2 Qb4 Bb7 Qa3 Bd5 Ke5 Qg1 Qc5 Bf7 Qb4 Bg6 Qa3 Rb4 Kd5 Rd4+ Kc5 Rf7 Kb6 Nc6 Kb7 Rd5 Qb4 Qc5 Ka8 Re5 Qb8 Nf6 Qf8 Re6 Kb7 Nb4 Kb8 Ne8 Rc1 b1R Rd1 Rb3 Rb1 Rb2 Nab5 Kc6 d7 Rg7 d8R Rf7 Rc8 Kd7 Na7 Nc6+ Ka8 Rb4 Rb8 Rd4 R8b2 Rdd6 Rc2 Rg7 Kb7 Rf6 Rcb2 Rde6 Ka8 Rff7 Rc2 Nf1 Rg2 Nd2 Bd4 Nf1 Kb7 Bb4 Bc3 Nd2 Ka8 Ba5 Kb7 Nb4 Kb8 Nc6+
R1qq2bR/2NPp3/PK1B1br1/R7/n2nb3/1b5B/Q2N2qN/Bbk2r1q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Kc5 Kf4 d4+ e3 g4 h5 a4 b5 f3 b3 d6 b2 a5 h3 d5 b4 d7 h4 g5 b3 d6 h2 a6 h3 g6 Nc6 g7 Nd4 Ra2 Nf6 g8R Ne4+ Kd5 c5 Qe1 c4 Qd2 c3 Rg5 c2 Rg6 Nc3+ Kc5 Bg7 Bc4 Rh6 Rg5 Bf6 Ra5 Rg6 Be6 Bb7 Qg2 Be4 Nd2 b1B Bb2 c1Q Ba1 b2 Rh5 e2 Rh8 Ke3 f4 e1Q f5 Rb8 Ngf3 Qf2 Rd1 h1B Nh2 Ba2 Rg1 Qf8 d8B b1B d7 Bb3 Bc7 Qd8 Bd6 Kd3 Rf1 Kc2 Rg1 Rb7 Rf1 Rc7+ Kb6 Qf3 Qe2 Qg2 Qc4 Bd5 Qa4 Bc4 Rf4 Kd1 Qa2 Qc2 Rfh4 Kc1 Rf8 Bd5 Rhh8 Be4 Bc4 Bd5 Bf1 Bg8 Re8 Qga8 Rf8 Be4 Re8 Qac8 Rf8 Bg7 f6 Qb2 f7 Bf6 Re8 Qc2 f8N Rc4+ Ka7 Na4 Ne6 Rc3 Bg2 Rf3 Nc7 Rf1 Rf8 Nc5 Kb6 Qb2 Ng4 h2 Bh3 h1Q Nh2 Na4+ Ka7 Qe8 Nc4 Qf2 Nd2 Qfg2 Nd5 Qc5+ Kb7 Qf7 Ra8 Qc8+ Ka7 Qfe8 Nc7 Nc5 Kb6 Qf8 Nc4 Qfd8 Nd2 Na4+
4r1b1/P4NB1/Q3Rqr1/1K1pRb2/1r3BBn/bbNq4/nrkNr2P/R7 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 a4 d5+ Kc5 g5 c4 b5 f6 b3 f7 b4 f5 e5+ Kb5 d3 f6 d2 c5 b2 c6 b3 a5 g3 c7 g4 a6 g2 a7 g3 Ra3 Nh6 Ra1 Nf5 Bc4 Nc6 Ra2 Rb8+ Ka4 Ba3 f8B Be6 c8N Bg8 f7 Qf6 Qh5 d1B Ba6 Nh4 Bb7 Kd3 Nb6 e4 Nd2 b1B Bd6 e3 f8R e2 Be7 e1R Bc8 b2+ Kb5 Bb3 Ngf3 g1R Bg4 g2 Re8 Re2 Bf8 Kc2 Re5 Nb4 Ra1 Na2 Ng5 Rc8 Bg7 Rc4 Nf7 Rge1 Na8 g1R Qh6 Reg2 Re6 Ree2 Nb6 Rgf2 Na4 Rgg2 Bh3 Rg6 Re1 Kd3 Bg4 Ree4 Qf4 Bh7 Qd6 Re8 Nc3 Bg8 Nf1 B1c2 Bh8 b1Q Bh6 Qd1 Bg5 Bb1 Bf4 Rb2 Bg7 Re5 Ne3 Kd2 Qb6 Bf5 Nf1+ Kc2 Qa6 Qd3 Nd2 Re3 Rg1 Re1 Rg3 Re2 Rge3 Ra8 R3e4 Re8 R4e5 Rb4+
2br1N1r/pq3b2/1B4KN/1k2r1Rn/3nB1NP/1B4r1/1r2PQ1b/R1b2Rq1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 h4 Kd7 b4 f5 c4 g5 c5 g3+ Kf3 d3 b6 Kc6 b7 d2 Bh3 d4 Bg2 d3 Qe1 d1B Bb2 d2 Nc3 Qb6 Ra6 Nf6 Qf1 Nh5 Ra1 Bh6 Ne4 Kb5 c6 Bb3 c7 d1R Qf2 Nc6 b8N Rb1 Bd4 Qb7 Nd7 Rb2 Nf8 Bf7 Nh3 Rb8 Rhg1 Ra8 Bh1 g2 Rgf1 g1B Bb6 Bh2 Nf6 Rb8 Ng8 g4+ Kg2 g3 Kf3 Bg5 Nh6 g2 Rfd1 g1Q Rf1 Bce6 c8B Ra8 Bd7 Rd8 Be8 Bc8 Bd7 Bf6 Be6 Bd4 Bb3 Be3 Qg2 Bd2 Nf2 Bc1 Nfg4 Qc5 Qg3 Nd4+ Kf2 f3 Qf4 Rd2 Ke3 f2 Be4 Rb2+ Kd3 Qcc6 Qf3 f4 Qg2 f3 Qg3 Rd2+ Ke3 Qg6 Qg2 Ng3 Kf4 Ra2+ Ke5 Qg8 Kf6 Rb2 Rh1 f1R Qf2 Rd1 Rf1 Rd3 Ba2 Ka4 b5 Kb4 Bb3 Rc3 Bc7 Rc5 b6 Re5 Ba2 Kb5 Bb3 Qb8 b7 Qa8 b8R+ Qb7 Qe3 f2 Ba5 Nc2 Bb6 Nd4 Re1 f1R+ Qf2 Rg1 Rf1 Ngf5 Ra8 Rg3 Rb8 Qd5 Rb7 Ng7 Rd7 Qb7 Re7 Bc4 Kg6 Nh5+ Rg7 Qgd5 Bf5 Qg2 Be4 Qg1 Rf7 Qa6 Rf5 Qb7 Rg5 Bf7+
q4n2/1N3B1q/brN2k2/1RbRn1n1/QRN3pK/2bq1Pr1/5PBb/2B1n3 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 g5 cxd4 g6 f5 Ba3 f4 Bb2 f3 exf3 hxg6 Ba3 g5 Bc1 g4 c4 Kf7 a4 d5 h4 b5 a5 e5 h5 g5 a6 b3 h6 g3 a7 b2 h7 b4 c5 g4 c6 e4 c7 d3 Bd2 d4 Ra2 g2 Rh2 b3 Ra4 e3 Nh3 g1B Bb4 e2 Ng5+ Kf6 Bc5 Nc6 Ba3 Bc5 Ne6 Ne5 Rh4 Rb8 a8B Rb6 Rh2 Ne7 Nf4 N7g6 Ne6 Nf8 Rh3 Ba6 c8N Bh2 Nd2 b1N Rh5 b2 Nd6 Nc3 Rb4 b1Q Nb7 Ne4 Nc4 Ng5 Bc1 Qb8 Qa4 Qa7 Kd2 e1B+ Kd1 d2 Ke2 d1N Ned8 Qb8 Bg2 d3+ Kf1 d2 Nc6 Nb2 Rb5 d1Q Rb4 Rg8 h8R Nbd3 R8h7 Qdb3 Rd7 Bc3 Rd4 Ne1 Rd5 Bf4 Kg1 Qh7 Kf1 Rh8 Kg1 Bfd2 Kh2 Qa3 Kg3 Bf4+ Kh4 Bh2 Nbd8 Qc8 Bb7 Qcf5 Bc8 Qfd7 Nb7 Qe8 Bd7 Qa8 Be6 Qb3 Bg8 Qbc2 Be6 Qcd3 Bf7 Qg8 Nba5 Ngh7 Bf1 Ned7 Rde5 B5d4 Reb5 Bc5 Rd5 Ne5 Nb7 Qg7 Bg2 Ng5+ Bh5 Bg1 Kg3 Rh6 Bh1 Qgh7 Bf7 Rh2 Bh5 Rg2+ Kh4 Rg3 Bg2 Qhe4 Bg6 Bh2 Bf7 Qh7+
N1q1r1R1/3Nk3/qN6/n1p1BP2/2K1B1n1/r1n1bn1R/RbP1Q2r/q4B1q w - - 0 1 illegal: No possible last move
QNn1Rn2/2K5/3b3P/P1N1B1rn/B4Nn1/1bbq1B1p/2R1Rq1k/2r1b2q w - - 0 1 illegal: No proof kernel
n2R2B1/K3N2r/2pP1B1N/Rq1r4/3r1bQn/2B1q2b/RP1r1n1q/q4N1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 Kd6 g4 Kd5 b6 Ke4 b7 a5 g5 h5 d5 f5 d6 h3 e3 c3 g6 f3 g7 f4 Na3 c6 Rh2 h4 Nc2 a4 Ra3 Qb6 Rb3 a3 Na1 c2 Qd2 a2 Ba6 Nh6 g8N Rh7 Ne2 Qb5 Nd4 Nd7 b8B Nf5 Ba7 Bh6 Qb4 Nb6 Bd2 c1Q Nac2 a1Q Ra3 Rb8 Rg2 h2 Ne7 h1Q Bc3 h3 Ra2 h2 Rg5 Nh4 Rd5 Bh3 Ndf5+ Qc4 Bc8 Na8 Bad4 Qb5 Be6 Rg8 Qc4 Rg4 Bg8 Qd2+ Qe2 Bg5 Bf6 Qdc1 Qd1 Qg2+ Ke1 h1N Nh6 Nf2 Rc5 Qh2 Rd5 Qcb1 Kd2 Rg2 Qe2 Qbg1 Rf5 Ng4 Rd5 f2 Qc4+ Kf3 Kd3 f1R Kd4 Nf2 e4 Kg3 e5 f3 e6 Bf4 Ne3 Re1 Re5 Re2 Rd5 Qgc1 Qa4 Rg1 Nf1+ Kg2 Re5 Kh1 Qb4 Rg4 Rc5 Qb7 Rca5 Rd2+ Kc5 Qa6 Nef5 Qe1 e7 Qe3+ Qd4 Qad3 e8R Qde2 Ne7 Rg5+ Kb4 Rd5 Rd8 Q2d3 Rc5 Qc4+ Ka5 Qb4+ Ka6 Qb5+ Ka7 Qa5+ Kb7 Ng4 Ra4 f2 Be6 Bg5 Bg8 Qb4+ Ka7 Qc4 Qf4 R2d4 Qg3 Bf4 Rca5 Qb5 Nd2 f1R Ra2 Nf2 Qg4 Rd1 Nf1 R1d2
1qNrN1b1/3NB3/RP3qrK/RBnn4/3p1Q1P/q6q/1b2n1b1/1k1B2bR w - - 0 1 illegal: No possible last move, all moves rejected
2bnB3/Pb1Kb3/N1Pn1k1b/2N1Rn2/1qQ2N2/nr6/1pRrrB2/2qBR3 w - - 0 1 illegal: No possible last move
RN1n1r1r/1p2r2B/4r1RB/P1K1NPn1/r1bb1k2/6b1/1Qr5/R1q1b1BN w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 g4 c5+ Kc4 h5 a4 e5 d4+ e3 f3 b3 a5 e4 d6 b2 d5 h3 d7 h2 d6 h4 Ra4 h3 Nd2 b1R Ne2 Nc6 Qc2 Bg7 Ng3 e2 Ra3 e1B Be2 e3 Bd3 e2 Ngf1 Qc7 d8R Rb4+ Kd5 c4 d7 c3 Ra1 Nh6 Bh7 Kf4 g5 Ra4 g6 Bg3 Kc5 e1B Rg1 h1R Qb2 h2 Rf8+ Bf6 d8B c2 g7 Be6 g8N Bc4 Ne7 Nf7 Rg8 Qc8 Bb6 Ncd8+ Nc6 Bc3 Rg2 Ng5 Rg6 Qh3 Nb8 Qh6 Re2 Rf8 Re8 Ra6 Ba7 Re6 Bb6 Kf5 f4 Rg1 Nf3 h1R Be3 c1R Ne5 Rc2 Ba7 Ke4 f5 Rgg2 Bg1 Kf4 Bb6 Rge2 Bc7 Bh4 Ng3 Rhh2 Nh1 Bhg3 Bb6 Re7 Nec6 R2e6 Ne5 Qh5 Bc7 Qd1 Bd6 Qc1 Bc7 Rh8 Reg8 Rhe2 Bd6 Rf7 Bf8 Re3 Bh6 Rf8 Rf6 Re7 Rgg6 Ree2 Ra6 Re3 Ra8 Ree2 Ned7 R2e6 Ne5 Bd4+
4n1q1/RB1N4/2q1rq1q/R2rP1b1/3nn1QN/1BpN4/KnPk1B2/4n1Rr w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 Ke2 e5 f3 e3 Rh3 e4 Rh1 Bf5 Ke1 e2 Kf2 Be6 Ke3 Bd5 Kf4 e3 Kg4 Be4 fxe4 Ra4 Kf3 Ra8 g4 Ke7 d4 Kd6 a4 e1R g5 h5 d5 Kc5 g6 b5 a5 f5 g7 e2 Ke3 Kc4 Kd2 c5 d6 b3 a6 b4 a7 b2 d7 f4 Bh3 f3 Ra5 f2 Ra4 f1Q Nc3 b1N+ Ke3 Nc6 Ra2 b3 Bd2 b2 Na4 Be7 Nf3 Nd4 Nh2 Nf6 g8N Nc3 Rg1 b1N Bc1 Nd2 Rg4 Ne8 Rg3 Qf6 Rg1 Kb4 Kd3 Nc4 Be6 h3 Nf3 h2 Bh6 h1Q Nb2 h4 Be3 h3 Bf2 h2 Ra5 Rh5 Nh4 Rd5 e5 Ne4 Bf7 Rb8 a8B Rb6 Bb7 Re6 Ra7 Qg2 Ra5 h1Q Ra7 Qc7 d8R Qc6 Rda8 Qgg7 Ra5 Qgh6 R8a7 Qg2 Qc1 Qgg5 Qf4 Rb1 Qg4 Qgg7 Rg3 Rh1 Rg1 Bd8 Ne7 Qg8 Nc8 Qff4 Nb6 Bg5 Nd7 Qff6 Ba6 Ne3 Bb7 Nd1 Qf4 Nec3 Kd2 e1N Kc1 Ne4 Kb1 Kc3 Qg4 c4 Nd3 Nb2 Ka1 Kd2 Ka2 Red6 Be6 c3 Bf7 Rc5 Bc4 Re6 Bb3 Rd5
qQ2b2r/nR6/q1n4b/1p3P2/P1B3qr/1Nprn3/1BNB1Nk1/2RRK2b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kf7 d4 Kg6 f4 c5 a4 b5 g5 Kf5 g6 h5 g7 e5 d6 h3 d5 e3 d7 Ke4 f5 b3 d6 b2 Rh2 h4 Qd2 c4 Na3 b1Q Qb2 c3 Qd2 e2 Rh1 h2 Nc4 h3 Kf2 e1N Ra2 Qb4 Be2 Nc2 Qe1 Ne7 g8R Bh6 Na5 Qe8 d8B Bd7 Rf8 Nc8 Nb3 Na7 Bdg5 Qd8 Rg8 Be8 d7 Qba5 Qd1 Qa6 Ra1 Nbc6 Bc4 Qb8 d8N Qbb7 Ne6 Rd8 Nf3 Qa8 Bb2 Rd5 Qd2 Rd3 Rhd1 h1R Rac1 h2 Nfd4 Re1 Na1 h1B Nf4 Re2+ Kf1 Rh2 Rg7 Rh4 Ndb3 Kf3 Qh2 e4 Nh3 e3 Qb8 e2+ Kg1 Ne3 Nc2 Nd5 Bd2 Ne3 Rb7 e1Q+ Kh2 Qe2+ Kg1 Ng2 Nf2 Qe4 Kf1 Ne3+ Ke1 Kg2 Nh3 Qf3 Nf2 Qg4
R1K5/1r2BQrk/2N1r1R1/1NP1p2b/4nq2/2bbn3/pP1bnbB1/R1N1B3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kg6 c4 a5 f4 e5 f5+ Kh7 f6 g5 b6 d5 f7 a4 b7 g3 h5 g2 c5 e3+ Kd3 a3 h6 e2 Nc3 e1B Nb1 g4 Qd2 a2 Qe2 g3 Nh3 g1B Qe4+ Bf5 Be2 g2 Nf4 Nc6 b8N Qg5 Bd1 Ra7 Be3 Bc3 Bf3 Bf2 Ne2 g1R Nc1 Qf4 Bd2 Rb7 Bg2 Nf6 Na3 Be7 Rh5 Re8 f8B Bg6 Qf5 Ne4 Rh2 Bg5 Nb5 Re6 Qf6 Bh5 Be1 Bg6 Be7 Bf5 Kc2 d3+ Kb3 d4 Kc4 d2 Kd5 d1B Rh4 d3 Rg4 Nd4 Nc6 d2 Qf7+ Kh8 Rg3 Bh5 h7 d1N Rg4 Ne2 Rg3 Rh6 Rg4 Bfg6 Ke6 Ne3 Rg3 Rb6 Kd7 Rb7+ Kc8 Bf5+ Kd8 Re6 Kc8 Bfg6 Qf5 Kg7 h8R Bh6 Rd8 Kh7 Qf8 Nd2 Qe8 Bd3 Rg6 Ne4 Rd4 Rh1 Ra4 Rh3 Ra8 Rg3 Rf6 Rg5 Qf7+ Rg7 Rg6 Bg5 Bf8 Bd8 Be7 Bda5 Ra6 Bd2 Ra8 Bac3
3N1nB1/N1RPR1BQ/4p3/n1b3qn/1kb2p2/2R1rPN1/1B4r1/2n1Krnb w - - 0 1 illegal: No possible last move, all moves rejected
4RQr1/1N1b3N/1qb2b2/B4pb1/1Pn1BR2/2BrRPn1/2b4p/K1qN1rk1 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 Ne2 dxe4 Ng1 c5 Qf3 cxb4 Qh5 b3 Qd1 b4 axb4 Qd5 Bd3 Qd4 Bf1 Qd8 c4 Kd7 g4 Kc6 d4 a5 Kd2 e5 Kc3 f5 Kb2 h5 g5 a4 g6 h3 g7 a3+ Kc3 h2 c5 Kd5 c6 e3 c7 Ke4 d5 e2 d6 e1Q+ Bd2 h4 d7 a2 Kb2 h3 Ba6 Nc6 Bc1 Na5 Ne2 Kf3 Bg5 Kg2 Be7 e4 Na3 e3 Bd3 Nf6 g8N Nh5 Bf6 Ng3 Nb5 Be7 Rf1 h1B Bc3 h2 Nd6 Bg5 Nb7 Rh3 Nf6 Rb8 Rb1 Nc4+ Ka1 Ra8 Qd2 Qc1 Nh7 Qf6 d8B Bd7 c8R Qb6 Bc2 Rb8 Qd6 Ra8 Nd4 e2 Nb5 e1R Qf8 Rd1 Re1 Rd3 Re6 Kg1 Re3 Bhc6 Rb8 Rd1 Be4 Rf1 Bc7 Qa7 Ba5 Qb6 Re8 Rd8 Nf6 Rh8 f3 Rg8 Nh7 Bc8 Bf6 Rd3 Nc3 B8d7 Nd1 Qd2 Bg7 Ne5 Rc1 Qc2 Bf6 Qcc5 Kb2 a1B+ Kb1 b2 Bd5 Qc3 Ka2 Qd2 Rc4 Qc1 Rf4 Nc4 Bg7 Rd4 Be4 b1B+ Kb3 Bc2+ Ka2 Rd3 Bh8 Baf6 Bg7 Bd8 Bc3 Qd2 Ka1 Bdf6 Re1 Qde3 Re2 Qd2 Re3 Qc1+
6qk/3q2bB/nRR1BnP1/b2Pp2N/2bn3Q/NRp5/KbN2b2/3rr1B1 w - - 0 1 legal: proof: e4 b5 c4 d5 a4 bxa4 h4 dxc4 e5 g5 hxg5 f6 Ke2 fxe5 Ke1 e4 b4 Kf7 g4 Kg7 d4 h5 Kd2 c5 Kc2 a5 Kb2 e5 f4 e3 g6 a3+ Ka2 h4 b5 c3 b6 e2 b7 e1B d5 a4 f5 h3 g5 h2 Qf3 c4 Bd3 c2 Qe3 Qd7 Qd4 Na6 b8N Nf6 Nf3 Bf2 Be3 c1B Ne1 Bd2 Qh4 Ba5 Nc2 c3 Bb6 Kg8 g7 Rh7 Re1 h1Q Re4 Qf1 Rb4 Qg1 Rb3 Rh5 Be4 Kh7 g8B+ Kh8 Bf7 Bg7 Be6 Bb7 Bd4 Bc6 Bb6 Bb5 Bd3 Bc4 Ba7 Ne8 f6 Qg3 f7 Nf6 Bh7 Qg2 Qg3 Rh1 Qh4 Rd1 f8R+ Ng8 Nd2 Re1 Rf5 Nc5 Rf3 Be3 Rf2 Bb4 Rf6 Bh6 Bh3 Qf7 Rc6 Qg4 g6 Bg7 Nd7 Qf8 Nf6 Qd7 Nh5 Nf6 Bf5 Qg8 Rb1 Rb8 Bb6 Ba5 Ka1 Na6 Rb5 Bd4 Rd1 Be3 Kb1 a2+ Kc1 a1B Be6 a3 Bc5 Bd4 Nb1 a2 Nba3 Bg1 Be7 Bgb6 Bc5 Rb7 Bg1 Bf2 Rbc5 Rb2 Rb6 Rb3 Rcc6 Rb2 Ne3 Rd2 Nec2 Rd3 Ne3 Rd4 Kc2 Rd3 Rdb1 Rdd1 R1b3 Bb2 Qd4 Bc1 Qh4 a1N+ Kb1 Nc2 Ka2 Nd4 Nec2 Bb2
b2nB1BB/b6b/r1N1bprq/rb2NKP1/qR1p4/1nQ2R1P/R7/3N2k1 w - - 0 1 illegal: No proof kernel
R1n2q1N/nP1B1rp1/n2Nbb1b/6Pq/1N3p1R/KQBR1r1n/1B6/1n5k w - - 0 1 legal: proof: a4 d5 f4 b5 c4 dxc4 b4 bxa4 Ra3 h5 Rh3 e5 Rh4 exf4 Rxh5 Qd4 Rh7 Qd8 d4 Ke7 Kd2 Kd6 Kc2 Kd5 Kb2 Ke4 h4 f5 g4 a5 e3 c5 d5 f3 d6 a3+ Ka2 c3 d7 f2 h5 a4 h6 c2 b5 c4 b6 c3 b7 Nc6 Nf3 Nge7 Qd6 Na7 Bb5 f1N Qf6 Nd2 Bb2 c1N+ Ka1 c2 Ba6 a2 Rh4 Ne2 Bc3 c1B Bb5 Nf4 Qf7 Nh3 Ne5 Rb8 Nc4 Kf3 e4 Kg2 e5 Kh1 e6 Qe8 Qg8 Qh5 d8B Bd7 Qf7 Nec8 e7 Be6 e8R Be7 Rf8 Bf6 Nba3 Ra8 Re8 Rf8 Nd6 Rb8 Qg8 Rf7 Nc2 f4 Rh8 Bg5 Qh7 Rf6 Bb6 Bg8 Bbd4 Nc6 Nf5 Ra8 Re3 Be6 Bc5 N8e7 Ba3 Ra5 Qg6 Na7 h7 Bh6 g5 Rf7 Ra8 Nec8 Bd7 Rc5 Bf6 Rc3 Re5 Rf3 Bb4 Ba3 Ba5 Be7 Kb2 a1N h8N Nab3 Rd5 a3+ Ka2 Nc5 Ba1 Na6 B5c3 Nc4 Kb3 a2 Rd4 Bd5 Qb6 Bf6 Bb2 a1Q Rd3 Be6 Qb5 Qa5 Qa4 Qc5 Nb4 Nd2+ Ka3 Qd6 Qb3 Qf8 Nd6 Nb1+
R3nqB1/1NnR3q/Q1r5/3rb2P/2qp4/1B1P1Rrp/BKNk2bn/Nr6 w - - 0 1 illegal: No proof kernel
n1BQ1b2/3n1NqR/6rP/K1b1Rp2/q2B4/r3Bp1N/P3N3/qkr1Rq1b w - - 0 1 illegal: No possible last move, all moves rejected
BB5n/3R1RqN/2np2b1/p2rr1r1/BP1b1b2/N1KQNn2/1R1r2P1/2kq4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Ke6 b4 Kf5 f4 h5 b6 e5 c5 a5 b7 d6 c6 d3 c7 e3+ Kc3 Ke4 f5 h3 f6 h2 f7 e2 Qd2 e1B Ra3 h4 Rb3 h3 Kc4 Qg5 Qc3 d2 Bb2 d1R Qg3 Bg7 f8N Rd2 Be2 Ne7 Kc3 Ng6 Qh4+ Ke3 Qh5 Bf5 c8B Bg3 Bd3 Bf4 Bc4 Nc6 b8R Rg8 Nh7 Nh8 Bb7 Bg6 Nf3 e4+ Ne5 Qf6 Rc1 h1R Rd8 h2 Bb5 Rhd1 Ba4 h1Q Rd7 Rae8 Ba8 Rd5 Rc2 R1d2 Na3 Qd1 Qh3+ Ke2 Qf5 e3 Qd3+ Ke1 Bc1 e2 Rb1 Qf8 Rcb2 Bf6 Ra1 Qg7 Rab1 Nd4 Ng4 Ree5 Ne3 Nc6 Qe4 Kf2 Ra1 e1N Qd3 Nf3 Nf1 Rde2 Be3+ Ke1 Ba7 Rd2 Rc1 Bd8 Bb8 Bb6 Ne3 Bd4+ Kc4 Rge8 Rcc2 Rg5 Kb3 Ree5 Rf7 Qa1 Rc5 Qb1 Rb5 Qa1 Rbb7 Qb1 Rbd7 Qa1 Nf5 Kd1 Ne3+ Kc1 Nf1 Kd1 Rf6 Bc3 Rff7 Qc1 Kc4+ Qc2 Ne3+ Kc1 Qd4 Qd1 Qd3 Qe1 Kb3 Bd4 Kc4 Qf1 Kb3 Qd1+ Kc4 Bb6 Kc3 Bd4+
3q1Bbr/1qqR2NR/B1PR3r/6Kn/Q1Nr3p/1Nq1p3/3bP1n1/3k2Bb w - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 Kf7 c4 Ke6 f4 Kf5 b4 Ke4 c5 g5 c6 a5 b6 h5 b7 d5 f5 e5 b5 h4 f6 g4 f7 d3 b6 a4 Bb2 a3 Qc2 g3 Qd1 d4 Ra2 h2 Nf3 g2 Ne1 g1Q Qa4 Be6 Qa5 Rh6 Ng2 Qc7 Bc1 Nf6 Qa6 Nh5 Qa4 Na6 b8B Nc5 Ne3 Qg7 b7 Bd6 f8N Bg8 Rc2 a2 Ba7 a1Q b8R Ne6 Ba3 Nef4 Ne6 Ng2 Rb7 Bb4+ Rc3 Rf8 Nc4 Qgf7 Rg1 h1B Ng7 Kf4 Bb6 e4 Ba7 Rd8 Bb6 Ba5 Bf8 Kg3 Bbc5 Kf2 Ra7 Qb7 Bb6 Qfc7 Bbc5 Ne1 Bh3 Ng2 Bc8 Qa3 Rd1 Qab4 Kc1 d2+ Kc2 Qa3 Rg3 Qf3 Rg6 Qfg3 Rd6 e3 Kd3 Qe5 Bb4 Qc5 Ke4 d3 Rd7 Qd4+ Kf5 Qc3 Bbd6 Re8 Kg5 Bb4 Rc1 d1Q Nbd2 Ke1 Nb3 d2 Bh2 Rd8 Re7 Rd4 Bg1 Rh8 Rb1 Rd6 Rd7 Rdh6 Qa6 Qdc1 Qa4 d1R Rb2 Rd4 Rd2 Qd1 Rd3 Rf4 R3d6 Rd4 Ra5 Qdd3 Re5 Kd1 Ree7 Qc1 Rf7 Bd2 Rfe7 Qcc3 Rf7 Qbb4 Ba6 Qbb7 Ne8 Qh7 Rg6 Qg7 Ned6 R6h7 Nf5 Rh6 Rfe7 Qh2 Rf7 Qge5 Rh7 Qe8 Ng7 Qhc7 Rgd6 Qed8+
2B4K/1R1N2b1/b1Pk1P1R/2r2pq1/r1QN2qn/1BB2qp1/2bb3N/1R2r2n w - - 0 1 illegal: No proof kernel
q5Rn/rB1qb2p/1qRP2NP/BnNB1K2/Q1r4b/n4p1k/2N4r/q5R1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 g5 e4 gxf4 Ba3 d5 Bc4 Be6 Bf1 d3 Bb2 d4 Bc1 Bd5 exd5 Ra5 Ba3 Ra6 Bc1 Ra8 Kd2 Kd7 h4 e5 a4 f5 g4 b5 c4 e4 h5 b3 g5 b4 g6 e3+ Ke1 b2 g7 b3 a5 d2+ Ke2 d3+ Kf3 e2 h6 e1B a6 Bh4 a7 Nc6 c5 Nd4+ Kg2 Ne7 Kh3 Ng6 g8B Bfe7 Na3 b1Q Qe1 d1R Qa5 b2 Bg2 d2 c6+ Kd6 c7 Ke5 c8R Qe4 Ne2 b1N Rh2 Nb5 Rb8 Rh1 Qa4 d1Q Bd2 Qb6 Ba5 Kf6 Be6 Kg5 d6 Rc8 Bc4 Nh8 Ba2 Rc5 Rg8+ Kh5 Bb3 Qdd5 Bc4 Qee6 Be4 Rc7 Bb3 Rac8 a8N Ra7 Nc7 Qd7 Ne6 Qa8 Bb7 Rc2 B3d5 Rhc1 Nc4 N1a3 Ne5 Ra2 Rhg2 Rc5 Rc8 Rc4 Rgg8 Rd2 Ng6 Rdc2 Kh2 Kg4 Rc6 Rb2 Nc5 Ra2 Kg1 Kh3 Nd4 Rh2 Rc1 f3 Rd1 f4 Nc2 f2+ Kf1 Ra6 Ke2 f3+ Ke3 Ra7 Rg1 Qde8 Kd3 f1Q+ Ke3 Qa1 Kd3 Rc3+ Ke4 Rc4+ Kf5 Qd7+
1q1r2R1/2kb1nP1/nN3B2/ppn3BB/7R/q1b4Q/2r2PNq/bn1K1NR1 w - - 0 1 illegal: No proof kernel
N1RqBQR1/b1nbp2n/2br4/1kB3n1/3B1R1N/1P6/PK1rp3/r1rq1N2 w - - 0 1 illegal: No proof kernel
1bB5/K3pqR1/b2B3P/RR4q1/nr3r1q/N2kP1Bn/4pn1n/1Nb2Q1N w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 e3 hxg4 Bd3 f5 Qe2 b5 axb5 f4 Kd2 f3 Be4 fxe2 Bg2 Rh4 Bf1 Rh8 Kd3 Kf7 Kc4 Kg6 Kc5 Kf5 b4 Ke4 f4 d5 c4 a5 h4 g5 b6 g3 b5 d3 h5 g4 h6 g2 b7 d2 b6 d1N f5 d4 f6 a4 f7 a3 Ra2 d3 Rb2 a2 Na3 a1B Rh4 d2 Rb4 Qe8 Rh2 g3 Rh5 Be5 Nf3 g1Q Bh3 g2 Rb5 Bfg7 f8Q Nf6 Rg5 Bf4 Ra5 Nf2 Qf7 d1Q Nd2+ Kd3 Ndb1 Qda4 Bg4 Nc6 b8R Nb4 b7 Na2 Kb6 Rf8 c5 Nc3 c6 Qe4 Bd7 N6g4 c7 Nh2 Bf5 Bf6 Rg7 B6e5 Qf6 Qf7 Bd2 Bd6 Be1 Bfe5 Bd7 Qh4 Bg4 Nce4 Bb4 Bb2 Qf5 Bf4 Bd6 Bc1 Qf6 Nc3 Bh3 Be6 c8N Bc4 Be6 Ba6 Qf5+ Nfe4 Bd7 Be5 Qf1 Nf2 Be6 Bf6 Bg3 Be5 Nd6 Bf4 Ne4 Bc7+ Kc5 Ra7 Bc8 Na4+ Kc6 Qfh5 Bd6 Rf4 Ng3 Qf7 Nh1 Ra8 Rb5 Ra7 Ra8 Rb4 b8B Rb7 Bg3 Rf4 Rc5 Rbb4 Rb5 Bb6 Bd6 Bc7 Qe1 Qf1 Ra7 g1N Ra8 Qfh3 Qf1 Qhf5 Ra7 Ngh3 Ra8 Bb8 Ra7 Qfg5 Ra8 Nc3 Kb6 Bc7+ Ka7 Na4 Rab8 Rf5 Ra5 Rff4 Rbb5 Bb8+
1k1b4/n2P1p2/1rn3N1/1n2N1Rp/1K1RBRrb/3bn2q/BB1P1q1Q/r5N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 g4 Kd7 a4 b5 e4 h5 d6 c5 g5 f3 g6 f2+ Ke2 h3 Kd3 c4+ Kd4 h2 Kc5 b3 a5 b4 e5 c3 a6 c2 a7 b2 g7 b3 Nc3 b1R Nd5 b2 Nh3 Ba6 e6+ Kc8 e7 Bd3 e8N Qh4 Ra5 Ne7 g8R Nbc6 Rhg1 h1Q R8g4 Rg8 Rd4 Rg4 d7+ Kb7 Ra1 Nc8+ Ne7 Qf3 Be2 f1N Raa4 Ne3 Nf6 Qhf2 Qe1 Bh6 Ng6 Bg5 Rf4 Qh1 Rad4 Bh4 Qf1 Rb8 Qg2 Ra1 Qh2 b1N Bb2 c1B a8B+ Kc7 Rg2 Rb6 Ng1 N8a7 Bd1 Na3 Bb3 N3b5 Ba2 Kb8 Bb7 Rg3 Ng4 Bd8 N4e5 Rg4 Qg3 Qh3 Qh2 Nb4 Be4 Nbc6 Ba3 Bb2 Rg3 Rh4 Rg5 Bc3 Bc1 Rg4 Bb2 Ba5 Rgf5 Bh4 Rg5 Rb7 Bg2 Bd8 Be4 Na5 Kb4 N5c6+ Kb3 Rb6 Ka4 Ne7 Kb4 Nec6+
r1rnbKnR/2pPBb2/NR1q4/2q3b1/P1q2B2/2b2Np1/2QNR3/k1nB4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 e4 b5 a4 f5 h4 g5 h5 g3+ Kf3 g2 h6 b3 h7 g4+ Ke2 f3+ Kd3 f2 Rh4 b2 Qf3 b4 Kc4 b3 Ra2 g3 Kb5 f4 Qe2 f3 Rh6+ Be6 Qc4 Nc6 Qc2 Be7 Nd2 b1B Be2 f1N Bd1 f2 Ngf3 g1B Rg6 b2 e5+ Kd7 d6 Bf7 Kc5 Bg5 d5 Qe7 Re6 Nd8 Kd4 Qf6 Ke4 Qh6 Kf5 Qh5 Nb3 Qh6 Bf4 Nd2 Rf6 f1Q e6+ Kc8 d7+ Kb7 e7 Qc4 e8R Bd4 d6 Ka6 Nc5+ Ka5 Na6 Nb3 Nd2 Nc1 Re2 Ne6 d8B Bc3 Be7 Nd8 d7 Be8 Ra1 Ba2 Rb6 Bb3 Ra2 b1Q Rb2 Rc8 Rb8 Ba2 R2b6 Qd6 Ra8 Qbb4 Rab8 Nf6 Ra8 Rf8 h8N Ng8+ Nf7 Qdc5+ Kg6 Qd6+ Kh7 Qbc5 Ne5 Bb3 Kg7 Ba2 Rc6 Bb3 Nb8+ Kb4 Rb6+ Ka3 Na6 Ba2 Qb1 Bb3 Qf5 Kb2 Qc2+ Ka1 Rab8 Rf6 Nef3 Rh6+ Kf8 Rh8 Be3 Q4b5 Bf4 Bbf7 Ra8 Qbc4 Qe4 Rh5 Rh2 Bh4 Rab8 Qg5 Rb4 Nh6 R8b6 Qce6 Nf1 Qd3 Rbb2 Ng8 Nb4 Qdd6 Rbe2 Qc4 N1d2 Qa5 Qg6 Re5 Qc2 Bg5 Rh8 Rb5 Ra6 Rbb8 Rb6 Qac5 Na6 Ra8
nN4b1/kP4p1/2P2r1R/1nK3b1/1rR2QnN/bq1N2R1/1Bp3q1/r1B2r1B w - - 0 1 illegal: No proof kernel
1NK2k2/p1r4b/2bqRP1N/P6q/2nB1RQn/5rpR/1bn2q2/2N1B1bB w - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b3 h5 b4 hxg4 bxc5 d5 Qc2 dxc4 Qa4+ Nd7 Qd1 Nb8 Ke2 b5 Ke3 g5 d4 e5 a4 b4 f4 b3 h4 c3 h5 b2 f5 c2 d5 g3 d6 g2 d7+ Ke7 a5 g4 c6 g3 c7 Bg7 h6 Qe8 d8N Kf8 h7 Qh5 Ra4 Nd7 Nd2 b1B Rh3 Bb7 c8R Nb6 Ndf3 Nh6 Nh4 Bc6 Bd2 c1Q Qg4 Qd1 Be1 Qd6 Ne2 Rg8 Rc7 Rc8 Re7 Rc7 h8B Bc2 Re6 g1B+ Bf2 Bf6 Bg2 Rg5 Nc1 Nc4+ Ke2 e3 Bh1 e4 Be1 Bc3 Bd4 Bb2 f6 Rf5 Rb4 Rf3 Nf5 Ng8 Ra4 Ne7 Nh6 Nf5 Rb4 Nh4 Ra4 Bb7 Nc6 Bb1 Nb8 Bc6 Rb4 Nb6 Kd1 e2+ Kd2 Bd3 Rb5 Bb1 Rf5 Bc2 Rf4 Bb1 Bf2 e1N Ke2 Nc2 Be1 e3 Kd3 Na4 Kc4 e2 Bb4 e1Q Bd2 Bd5+ Kb5 Nb6 Ka6 Qf2 Bb4 Be4 Be1 Nc4+ Nc6 Rc8 Kb7 Bh7 Nb8 Ba2 Bd2 Bb3 Be1 Ba4 Be3 Rc5 Bd4 Bc6+ Kc8 Rg5 Bg2 Rg7 Bh1 Rc7#
3K4/pNr3p1/1q3N1R/r1N1q3/n1P3bR/bB1nB1b1/3Pk1rb/1BR2nQ1 w - - 0 1 illegal: No proof kernel
1bb4B/2kN2Q1/2N1r3/2b1qR1r/1NP2npR/P4bnr/b1RB2rp/2K2B2 w - - 0 1 illegal: No proof kernel
1BN1N1qN/3k4/B1Rpn1R1/R2r1rr1/1K1n1Bb1/2P1r1b1/4Pp1r/1Qn2n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 b4 a5 g4 f5 g5 h3 c3 f3 g6 f4 b6 h4 b7 f2 b5 h2 g7 a4 b6 h3 Kc2 a3 Kb3 f3 Bg5 d3 Be3 a2 Bg2 f1N Bh6 f2 Bf3 d2 Bg5 Na6 b8R Nh6 g8N Bd6 b7 Nf5 Qc2 d1R Bc1 Nc7 Ne7 Ra5 Nd2 Rg8 Qb1 Rg5 Ne4 Ne6 Bf4 Nfd4+ Kc4 Bc7 Kb4 Raf5 Ra8 Be5 b8B d6 Ra6 Kd7 Rc6 Qg8 Bg4 Rd3 Nf3 Re3 Rg1 h1R Nh4 h2 Rg3 Rg1 Nhg6 h1R Nh8 Rh2 Bh3 Rh5 Rg6 Rgg5 Nf6+ Kd8 Ne8 Kd7 Bg3 Bf4 Bg2 Rd5 Be4 Rgf5 Bd3 Rhg5 Bh4 Bg3 Ba6 Rh5 Bf6 Rhg5 Be5 Qf7 Bf4 Qg7 Qc2 Qg8 Rc1 a1N Qb1 Nab3 Rd1 Bb7 Nc8 Nc1 Rd2 Ba8 Ra2 Bb7 Rb6 Bc6 Ra5 Bb5 Rc6 Bd3 Bb5 Be4 Bd3 Bf3 Ba6 Bg4
1BR5/1PBr2rQ/2P2b2/RRp1r1nB/b1n2n1K/2n1rN2/kp2N3/3N1q1n w - - 0 1 illegal: No proof kernel
B6K/1R2B1bn/1RBbpQP1/r3N1q1/nn4rr/4k1p1/P1RN4/2Nb1rb1 w - - 0 1 illegal: No proof kernel
NB6/1KN4B/4b1Br/1Rp1b1n1/N1PPrpRn/3q3q/RQ2r1r1/qq2k3 w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 Kd6 Kd4 a5 c4 h5 b4 f5 g4 c5+ Kd3 Ke5+ Ke3 h3 b6 a4 g5 f4+ Kf2 Kd4 d3 e5 b7 h4 b5 e4 g6 a3 b6 a2 g7 h2 Ba3 h3 Nc3 Be6 Qe2 Nh6 g8B Na6 b8N Bg7 b7 Be5 Nd7 Nf5 b8R Nh4 Bb2 Rh6 Rb5 Nc7 Bh7 Qh8 Qc2 Rg8 Nb6 Rg5 Na8 e3+ Ke1 e2 Kd2 e1R Bg6 Nd5 Na4+ Nc3 Bg2 f2 B2e4 f1Q Bh7 Rgh5 Beg6 Rg5 Qb3 Rg4 Kc2 Ke3 Ne2 Kf2 Nd4 Re4 Rg1 Rg5 Rg4 h1Q Qa3 h2 Kb3 Qf3 Qb4 h1R Ka3 Bf7 Ne6 Rh2 Nec7 Be6 Qb3 Qb1 Qc2+ Ne2 Bd4+ Kf1 Qb2 Ng1 Bc3 Qh3 d4 Ngf3 Ba5 Rc2 Bb6 Qf8 Ba7 Ke1 Bb8 Qg8 N4b6 Qg7 Ka4 Rce2 Ka5 Qf6 Ka6 Qf5 Bh5 Rgg6 Na4 Ng5 Kb7 Rg7 B5g6 Qd3 Rg2 Qfh3 Rg4 Qbd1 Rc1 a1Q Rc3 Q3b1 Ra3 Qdd3 Ra2 Rg8 Rg3 Nf7 Bf5 Rg4 Bfg6 Rg5 Rf3 Rgg2 Rg3 Ng5 Rg4 Qdg3 Ka6 Qc3 Kb7 Qcd3
2b2r2/R1RnK3/7p/nP2b3/P1QpbBq1/1n4N1/BN2Bkq1/2r1nbNR w - - 0 1 illegal: No proof kernel
1RBN4/n2NNPq1/pQb1n3/1b2BKp1/b3r1r1/2R1Pq2/qb1q4/kBR5 w - - 0 1 illegal: No proof kernel
2r2q2/2R2R2/p1rPb1q1/Nk1BKR2/1b1r4/4p2r/PB1nbQq1/r1BN1N2 w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 c5 fxg4 c6 bxc6 Ba6 c5 Bf1 c4 h3 g5 Rh2 g3 Rh1 Nc6 h4 g4 Bg2 Nd4 Bh3 Ne6 Bf1 Ng5 hxg5 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Ke3 Kc6 Kf4 e5+ Ke3 h5 b4 a6 f4 g2 d4 c3 f5 c2 g6 h4 g7 g3 f6 h3 f7 h2 Bb2 c1R Nc3 Be6 Nge2 g1Q+ Kd2 e3+ Kd3 g2 Ke4 Rc8 Qe1 Rh3 Ng3 e2 Qf2 Rd1 Rc1 e1R+ Be2 Rd3 Nd1+ Kb5 d5 c5 Nf1 c4 Rc3 Bc5 d6 Qf8 Rc1 c3 Rc2 Nh6 g8R Nf5 Rg5 Ne3 Rf5 Rc6 Bf3 Nc4+ Nde3 Ra1 Nd1 Ka4 b5 Bb4 b6 Kb5 Rc1 c2 b7 Rd5 b8N Nd2+ Ke3 e4 Kf4 Rc8 Nc6 e3 Na5 Rdc5 Bd5 Rc4+ Ke5 Rd4 Rb1 Rc6 Bc1 Rc8 Rb3 Rc6 Rc3 Rc8 Bb2 c1R Rc7 Rcc4 Bc1 Rc6 Qh4 Qf2 Rg1 Qf3 Qf2 Qg4 Rh1 Qg6 Rg1 Qfh6 f8B h1B Bg7 Qh8 Ng3 Qf8 Rf1 g1Q Rff7 Nb1 Qb2 Rd2 R1f5 Qf2 Nf1 Bf3 Kf4 Qfg2 Bc3 Rd3 Qf2 Nd2 Ke5 Rd4 B3b2 Be2
Q3q1n1/N2kb3/K7/1pqrqr2/qPN5/Rq2BBP1/1rN4p/Rn1R1q1B w - - 0 1 illegal: No possible last move
RN3b1n/pbR2B1N/3K2B1/3nnB1p/P2r3b/kn2qR2/3b1Q1P/1q4Nb w - - 0 2 legal: proof: e4 d5 f4 dxe4 c4 b5 Nh3 bxc4 Nc3 e5 Nb1 e3 Ng1 e4 Qb3 Na6 Qc2 Qg5 Qd1 Qd8 f5 Ne7 d3 Ng8 Bd2 g5 Bc3 Rb8 Be5 Rb6 Bf4 Re6 fxe6 gxf4 Ke2 Ke7 b4 Kd6 g4 c5 a4 f5 e7 h5 e8B c3 b5 c2 b6 c1B g5 c4 d4 c3 g6 f3+ Ke1 c2 d5 Kc5 d6 Kb4 b7 f2+ Ke2 f4 b8R+ Bb7 d7 Nh6 g7 Nc7 g8B Qe7 d8N Nd5 Ne6 Bd2 Bh3 Nf7 Qe1 c1N+ Kd1 f1N Kc2 f3 Na3 f2 Nc4 e2 Nb6 e3 Ng5 Nd3 Ra3 Nde5 Nd7 Rh7 Bf5 Nh8 Rc8 Qe6 Nb8 Rd7 Rac3 Qg6 R3c5 Ka3 Bgf7 Qb6 Nh7 Rd6 Qd1 e1B R5c7 e2 B7g6 Qe3 Bef7 Ba5 Qb1 Nd2 Qb6 f1B Qd4 Bf2 Qf4 Bh4 Qf2 e1Q Rd8 Bg2 Rdc8 Qh3 Rd8 Nef3 Kd3 Ne5+ Kd4 Qb1 Kc5 Qhd3 Ne2 Qg3 Rf1 Bh1 Ng1 Bc3 Qd4 Qge1 Rf3 Qec1 Qf2 Nb3+ Kb5 Qe3 Re8 Nd4+ Kc5 Bd2 Na6 Nc3 Ra8 Nd5 Nb8 Rb6+ Re7 Rb4 Kd6 Nb3 Bg4 Rd4 B4f5 Bg7 Rc7 Bf8+
2Q1qBr1/2nB3b/N3Np1B/1R1r1Ppr/1KR2R2/2Pqn2r/1kq5/1n4qN w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 e3 d5 Qf3 e6 Nh3 d3 Qd1 d4 Ng1 Be7 Bh3 d2+ Kf1 d3 Kg2 Qd6 Ne2 Bf6 Ng1 Bd4 exd4 Qc6+ Kg3 Qa6 Bf1 Qd6+ Kg2 Qd8 a4 Kd7 f4 Kc6 Kf2 Kd5 Ke3 Kc4 h4 b5 f5 b3 d5 g3 h5 e5 h6 e4 d6 g2 a5 b2 h7 f6 a6 b4 d7 b3 c3 Nh6 a7 Na6 Nh3 g1Q+ Nf2 Nc7 Ra5 Qe8 d8N Be6 Rb5 Bg8 Ne6 g5 Rh4 Rd8 a8R Rd5 Qe1 d1Q Rc8 Qc2 Rf4 Rd8 Bg2 d2 Ke2 Ng4 Nh1 d1R+ Qd2 Bf7 Bf3 Rg8 h8B Ne3 Bg7 Rd5 Bh6 Bg6 Bh5 Bh7 Bg6 Qe7 Be8 Rf1 Bd7 Qe8 Nc5 Rf3 Na6 Rh3 Rbb8 Rd4 Na3+ Kd5 Nb5 Kc4 Rb7 b1N Ba3 b2 Baf8 Kb3 Rbb8 Rd5 Nd4+ Ka2 Rb4 Nf1 Rb5 e3 Ne6 Rh5 Kf3 e2 Qd3 e1R Qc4+ Ka1 Qc6 Ne3 Qa8 Qch2 Ke4 Rf1 Qc6 Rf3 Qc5 Rfh3 Qc4 Re5+ Kd4 Qc2 Qc5 Ng2+ Kc4 Ne3+ Kb4 Rd5 Qc6 Na8 Rb7 Qd3 Rf2 Nd2 Rb5 b1Q+ Ka4 Qb2 Rf4 Qbc2+ Kb4 Kb2 Qb7 Nb1 Rcc4 Nc7 Qb8 Rf3 Qc8 Rfh3
1r1r1n2/1R1Rb2q/4qBkN/1PK1qp1p/2B4n/P3R2p/1BQr3N/bN5b w - - 0 1 illegal: No possible last move
q1R5/N2BB3/1p1RnPrk/1P4pb/8/B1Qq1bKb/N1pqRnr1/5Nr1 w - - 0 1 illegal: No possible last move, all moves rejected
Kb2bB1Q/rPR5/q1qNBnRN/B1P4N/r3b1p1/2np4/2r2R1p/2qk4 w - - 0 1 illegal: No possible last move
1B3rq1/Bp1n2Nk/1RPr2R1/K1p1rRp1/b5BN/Q2q1n2/3nbqP1/4N3 w - - 0 1 illegal: No proof kernel
N2k1K2/2rbRp2/1n1B1rnB/1P5N/b1b1nb1p/2B2PN1/2p2bR1/3Q1R1q w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 g5 d4 e6 h4 gxh4 e3 Qg5 Bd3 Qf6 Be4 dxc4 d5 Qe7 d6 Qd8 Bd5 exd5 Ke2 a5 Kf3 c5 Kf4 h5 Ke5 a4 b4 a3 g4 c3 e4 c2 b6 c4 g5 a2 b7 c3 g6 d4 b5 h3 g7 d3 Bf4 c1B Nd2 h4 Nc4 d2 Bh6 h2 Ne2 Bd7 Nb6 Ne7 Kf6 Ra6 Re1 h1B e5 Bd5 g8R Bc4 e6 Ng6+ e7 Qc7 Na8 Qc6 Ng3 Qh1 Rb1 a1N f3 Nb3 Re6 Nc5 Re2 Nc6 b8B Na7 Ra1 Rc6 Re1 Rc7 Rf1 Nc8 Ra7 Bde6 Rb7 Kd7 e8N Nb6 Ng7 Kd8 N7h5 Bc8 d7 Ne4+ Kf5 Rh7 Rg7 Bc5 Ra7 Ng5 Kf6 Bf2 Rb7 Rh8 Ra7 Re8 Rg8 Ne4+ Kg7 Nf8 Rb7 Re6 Ra7 Rf6 Rb7 Ke7 d8B+ Ke8 Be7 Bd7 Bd6 Kd8 Be5 Rc5 Bbd6 Rc7 Qc2 d1B Ra7 Bde2 Qd1 Bf4 Bd4 c2 Bc3 Bb3 Rb7 Bec4 Ra7 Be8 Rb7 Ng6 Ra7 Nh8 Kf8 Ba4 Rg7 Rc6 Re7 Rc7 Ne2 Bc6 Rg2 Bd7 Neg3 Ng6+
b1kq4/2B2p1n/nr2b3/b2NR1N1/Nn2r1R1/1P1QB2p/n1KBp2P/3r3R w - - 0 1 legal: proof: e4 b5 d4 g5 a4 d5 axb5 c6 f4 gxf4 Bc4 dxe4 d5 Na6 d6 Nb8 Bd5 cxd5 Kd2 Kd7 g4 a5 c4 h5 b3 e5 c5 a4 b6 d4 g5 f3 g6 e3+ Kc2 e4 g7 f2 b7 f1B Qe1 a3 Nd2 a2 Qf2 d3+ Kd1 e2+ Ke1 h4 Qe3 h3 Nb1 d2+ Kf2 e1R Qd3 Nf6 g8R Bg2 Nf3 Ra4 Rg4 Na6 b8B Rd1 Ke3 Rh6 Ba7 Nh7 Nc3 Bg7 Nd5 Bc3 Bb6 Ba5 Ng5 Rf6 Rb1 a1N Ke2 e3 c6+ Ke8 c7 Kd7 Rb2 Re4 Rc2 Rh6 Rc5 Nc2 Ba7 Ncb4 Bb6 Bb7 c8N Nc6 Bc7 Ba8 Ncb6+ Ke8 Na4 Kd7 Bb6 Kc8 Ba7 Rf1 Rb5 d1N Bd2 Rg1 Rc5 Bf1+ Ke1 Nc3 Rb5 Na2 Kd1 e2+ Kc2 Bg2 Bae3 Rd1 Rc5 Bf3 d7+ Kb8 Rgg1 Bg4 Rg2 Be6 Rg4 Qf6 d8B Kc8 Bc7 Qd8 Nf4 Rb4 Rf5 Rh4 Re5 Rb6 Rgg1 Rg4 Nd5 Re4 Rg4 Ncb4+
B5k1/1p1n2b1/r3n3/R2p3P/1P2rQ1b/B1Bq2rR/NpqN4/r1NrR1K1 w - - 0 1 illegal: No proof kernel
B7/rNbn4/2k5/p1PR4/qR1qppr1/1b1Bb1br/5P1B/2nNKRNQ w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 d5 a4 bxa4 h4 dxe4 Ke2 g5 Ke1 gxh4 d4 Kd7 c4 h5 g4 a5 g5 f5 g6 e5 g7 a3 d5 e3 d6 a2 Qd3 e4 Qd5 e2 Na3 h3 Qd1 h4 Rb1 a1B Bb2 h2 Qc1 h3 Nb5 Nc6 Na7 Nd4 Nc6 Nf6 g8N Ra7 Nf3 Nb3 Ng1 Rh4 Nge7 Rg4 Be5 Bb2 Bf4 Be5 Nd5 Qe8 Qd1 Nc1 Nd8 Bh6 Nb7 Kc6 d7 Bc7 d8R Be6 Rb3 Nd7 Ne3 Bf8 Rb5 Bfd6 Rb4 Qh8 Bg3 Qd4 Be5 Na2 Qa1 Nc1 Nd1 Bf7 Bg7 Bg3 Be5 Nb6 Rd5 Nd7 Nf3 Be6 Rg1 h1Q Bf4 Bh4 Bh2 f4 Qb1 Qg2 Rh1 Qg3 Ng1 Qb3 Qa1 Bg3 Qb1 Bd6 Qa1 Qa4 Qb1 Kc7 c6 Bg8 c5 Be6 Re5 Bb3 Rd5 Nd3+ Kd2 e1B+ Ke2 Bd2 Qa1 Kc8 c7 Be3 Qb1 Nc1+ Ke1 Nf6 Bd3 Kd7 c8B+ Kc6 Ne2 Nd7 Rf1 Bb8 Ng1 Bc7 Qa1 Qc4 Qh8 Qd4 Qh5 Rg6 Qf3 Rg4 Qh1 Qb2 Nd6 Bb6 Bb7+ Kc7 Ba8 Qd4 Nb7 Kc6 Qg2 Bc7 Qf3 Bh4 Bg3 h2 Qg2 h1R Qf3 Rh3 Bh2 Bg3 Qg2 Ne2 Qh1 Nc1
rr2R3/B2rqBqn/Nb2nbRp/q1p1N3/k4PRP/1r2N1Q1/3B3p/5K2 w - - 0 1 illegal: No proof kernel
2KR4/3N1kq1/3r2pP/4Bn2/qB2n2N/Q1p1bnP1/1pr1R3/qNBbRq2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 h5 g3 a5 Nc3 axb4 Bg2 h4 Nb1 h3 Qc2 hxg2 Qb3 Bh3 Qd1 Bc8 Kf2 f5 Kf3 b5 e4 c5 d4 b3 a4 g6 h4 c4 a5 b4 e5 c3 e6 b2 e7 b3 h5 Qd6 a6 Kf7 e8N Bb7 a7 Qe5 h6 Qg7 Nf6 Ne7 Nd7 Na6 Rh2 Nc5 Qc2 Ne4 d6 Bc6 d5 Ba4 Qd2 Rb8 a8R Rb4 Qc2 Rd4 Rc8 Rd2 Rd8 Rg8 Qd3 Rc2 Qb5 Rh8 Qb4 Rh7 Qa3 Rh8 Ne2 g1Q Rg2 Qa7 Ng1 Rg8 Re2 Qa8 Kg2 f3+ Kh3 f2 Nf3 f1N Nh4 f4 Kg4 f3 Kf4 Nf6 Ke5 f2 Nb8 Nf5 d7 Qa6 d6 Ne4+ Kd5 Ned2 Kc5 Nh2 Kd5 f1Q Kc5 Qd3 Kb6 Ne4 Kc7 Qdd4 Kc8 Be7 Re8 Nf3 d8B Bf6 d7 Bg5 Ba5 Be3 Rd8 Re8 Bb4 Re6 Re8 Qa7 d8B Rd6 Bf6 Qa5 Rd8 Qb5 Nd2 b1Q Be5 Qa2 Rb1 Qa1 Nd7 Qa5 Bb2 Qa7 Rbe1 Qa5 Bc1 b2 Nb1 Bb3 Bf6 Qa4 Bd4 Rd2 Bf6 Bd1 Be5 Rc2
1Q6/3bn1NP/1p1R2P1/bKqN2n1/2rqBBRN/1R1r1r2/2Bp1kp1/3qr3 w - - 0 1 illegal: No possible last move
2rB2Bb/N1R1P2Q/1pp3NN/2qpRPq1/n5bb/1bR2r2/Bn2K1kn/8 w - - 0 1 illegal: No proof kernel
2r2BR1/1bbpbn1k/1K4pr/3N2n1/1NpPq1B1/3R1N2/1q1n1PQ1/1n2BR2 w - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 h5 g4 hxg4 c5 b5 axb5 Na6 c6 Nb4 Ke2 Nxc6 Nc3 Nb4 Nb1 Nc2 d4 Kf7 b4 Kg6 h4 a5 b6 c5 b5 e5 b7 c4 b8N g3 h5+ Kh7 b6 g6 b7 g2 h6 a4 Be3 a3 Kd2 a2 Kc3 Qe7 Rh4 Na3 Nf3 g1B Rh1 Bh2 Bd2 e3 Be2 e4 Qf1 Bc7 Rh3 Qe8 Qg2 Be7 Bd1 e2 Nc6 e1N b8R e3 Nb4 Bb7 Rd8 e2 Rc8 Nd3 Be1 Nf6 Rg3 Ne5 Rd8 Kg8 h7+ Kg7 Rh3 Rc8 Rg3 Nf7 Rh3 Rf8 h8B+ Kg8 Rg3 Kh7 Bg7 Rh8 Bf8 Ne4+ Kb2 Rb8 Nc3 Neg5 Ncd5 Rc8 Kc3 Nb1+ Kb2 Nc3 Ka3 Nb1+ Ka4 Nh6 Kb5 Nhf7 Bc3 e1Q Be2 Qc1 Be1 Qb2 Bd1 Nd2 Rb1 a1N Be2 Nab3 Rc1 Bf4 Kb6 Nb1 Rd1 Be5 Rd3 N3d2 Rh3+ Kg8 Rh1 Rh6 Rf1 Bf4 Ng1 Kh7 Bg4 Bf6 Nf3 Qe4 Bc5 Bb8 Rg8 Bg3 Bf8 Be7 Ng1 Bgd6 Nf3 Bc7+
3N2B1/1Rpr2rN/2nbN1nP/1R2p1B1/P2bq3/k4B2/1bpq2Q1/3n1RKb w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 a4 Kd7 h4 Kd6 f4 Kc5 Kf2 Kb4 d4 g5 a6 b5 d5 e5 d6 c3 h5 g3+ Kg2 c2 h6 g4 f5 e3 d7 e2 f6 e1Q f7 Nc6 a7 Bd6 f8R Nge7 Ne2 Rg8 Be3 Bb7 Bg1 Rg7 Nd4 Qe4+ Qf3 Ng6 Nc3 Rb8 Rb1+ Ka3 a8B b4 Bb5 b3 Bc4 b2 Ne6 Qg5 d8N Qd2+ Kf1 Rd7 Ba7 g2+ Kg1 Rc8 Rf1 b1N Nd5+ Nc3 Be3 Nd1 Nf6 Rg7 Nh7 Rb8 Nf7 Rd8 Qe2 Rd7 Rb8 Bf8 Bg5 Be7 Kh2 Bd6 Nfd8 g1B+ Kg3 Kb4 Qg2 Bd4 Kh2 Bb2 Kg1 g3 Bd5 Ka3 Rh4 Qed3 Rb4 Qe4 Rb5 Nd4 Qf2 g2 Bb3 Bc6 R8b7 Bd5 Nef8 Bc6 Bg8 Bd5 Nfe6 Nc6 Qe2 Qeb4 Bh4 Na5 R7b6 Bf3 Bd5 Nc6 Bg5 Be4 Rb7 Qbd4+ Kh2 Q4e3 Qf3 g1B+ Kh1 Bf2 Kh2 Qed3 Qg3 Bh1 Qg2 Bfd4 Bf3 Bdc3 Kg1 Qe4 Bf4 Bd4+ Be3 Nf2 Bg5 Nd1+
rBq2R2/2pNRK2/2Pn1P1p/b2bqNb1/4nR2/r1p2B2/QNn2kB1/5n2 w - - 0 1 illegal: No possible last move
1nr5/p4q1b/2B1r1RN/bq4P1/PrQNR1q1/pp2B3/2R2B1r/1K1kn1N1 w - - 0 1 illegal: No proof kernel
r3BQ1B/b2pNR2/k2N2br/N1q3Kp/n3bR2/4PP1B/rp4R1/n2b3r w - - 0 1 illegal: No proof kernel
nq3r2/1prr2p1/5NN1/1Rb2Rp1/B2P2bP/B1Q3b1/Bnr1kN1R/K3b3 w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 g4 dxc4 g5 e5 g6 hxg6 fxe5 g5 h4 Kd7 d4 Ke6 Kd2 Kd5 Kc2 Ke4 Kb2 f5 a4 c5 a5 f4 a6 b3 a7 c3+ Ka3 b2 Ka2 f3 e3 c2 e6 c4 e7 c3 e8N f2 Qh5 Bg4 Qh6 Nc6 Qh5 Bc5 Ne2 Kd3 e4 Qb8 e5 Nf6 e6 Na5 e7 Nd5 Nd2 b1R Bb2 c1B Ba3 c2 Nf6 Nc7 e8B Nc4 Ba4 Nb2 Rh2 Rd8 Nde4 Rd7 Nf4+ Ke3 Qh6 Bd2 Bc4 f1R Nf2 c1B Ng6 Be1 Qh8 Rg1 Qc8 Rg2 Bg8 Bcd2 Bd5 Rc1 Rb1 Ba5 Ka1 Ke2 Ba2 Rc2 N2e4 Bg3 Nf2 Na6 Qc7 Be1 Qa5 Nc7 Qc3 Nc4 Rb5 Nb2 Rh3 Qh8 Rh2 Rf8 a8R Rg1 Ra6 Na8 Rd6 Rf1 Rd5 Rc8 Rf5 Rcc7 Rh3 Qb8 Nd1 Rf3 Nf2 Re3 Rh1 Re8 Rh2 Rf8
qn5k/1RR4P/5pQn/1N3Bnq/2K1pR2/1NBp1r2/1r2PbBr/1N1n2n1 w - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 g5 b6 d3 Bb7 f5 Be4 g6 hxg6 Bd2 g5 Be3 g4 Bc1 e5 d4 cxd4 Na3 Bd5 Nb1 Be6 fxe6 Rh3 Nf3 Rh4 Ng1 Rh8 Kd2 g5 Kd3 d5 c4 g3 a4 g4 h4 g2 e7 g3 h5 b5 c5 b3 c6 b2 h6 b4 a5 f6 a6 Kf7 e8R e4+ Kd2 b3 a7 d3 Kc3 d4+ Kc4 d2 c7 Bc5 Nf3 g1N c8B g2 Bf5 Nh3 Re5 g1N Bg2 Ng5 Rh4 d3 Re6 Bf2 Rc6 Qa5 Qe1 d1N Bd2 Qd8 Rf4 Qc8 Na3 b1R Nd4 b2 Nb3 Rc1+ Bc3 b1Q Qf1 Qe8 Ra2 Qa1 Rb2 Kf8 Rb1 Qh5 Rc7 Rc2 Qe1 Rb2 Qd2 Rh7 Qc1 Rg7 h7 Nh6 Qe3 Rg6 Qg3 Rg8 Rc5 Kg7 Rc7+ Kh8 Qg4 Rg6 Qg3 Nd7 Qg4 Rag8 a8N Nb8 Qg3 N5f3 Qg5 R6g7 Qg6 Ng5 Nb6 Qa2 Nb5 Qa8 Na4 N5f3 Qf7 Rg3 Qg6 Ng5 Ba5 Rc2+ Nac3 Rf3 Rb2 Rd2 Nb1 Rc2+ Bc3 Rd2 Ra2 Rb2 Raa7 Re8 Bc8 Re5 Rab7 Rf5 Rg4 R5f4 Bf5 Rh3 Rh4 Rff3 Rf4 Rh2
6kq/1n2Bp2/1QR1Pq2/1pb2Npb/K3RB2/1B1N1P1q/1bq2nRr/1N1q4 w - - 0 1 illegal: No possible last move, all moves rejected
B2N2K1/R1bP3r/ppp3k1/1BP5/b2qn2B/N1nNR2b/R4nqQ/qq6 w - - 0 1 illegal: No proof kernel
kr1N4/4Bb2/1r1N2n1/2Rqp2B/pn2P1NR/Q5n1/RPp2n1r/1nK2n1B w - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 Bh3 bxa4 Bf1 f5 h4 g5 Qc2 Bh6 Qb3 fxg4 Qd1 g3 Qb3 g4 Qd1 Bg5 hxg5 Kf8 Rh6 Kf7 Rh1 Ke8 d4 Kd7 Kd2 Kc6 e4 Kb7 f4 c5 d5 e5 d6 h5 f5 a5 f6 c3+ Kc2 g2 f7 a3 f8R a2 g6 c4 d7 h4 g7 h3 Rh2 g3 Rf4 a4 Nd2 Ne7 g8B Ng6 Bd3 Nc6 Rf3 Rb8 Rf8 Ka8 Qe1 Nb4+ Kd1 c2+ Ke2 c3 Rb1 a1N Ngf3 g1R Nc4 g2 Bg5 c1N+ Kd1 Nab3 Be7 Ne2 Nd6 Ng3 Bf7 Nd2 Ra1 c2+ Kc1 Nb1 Ra2 Nf1 Qg3 Ba6 Rg8 Bc4 Be2 Rh6 Rh1 h2 Rh8 Qa5 Rc8 Qd5 d8N Rh8 Rc5 Rb6 N8b7 Rb8 Nd8 Qd4 Be6 Qd3 Bg4 Bf7 Bd1 Qd5 Bh5 Ne3 Ne8 Rf1 Qh3 g1N Nd6 Rf2 Be2 Rg2 Bf1 Rd2 Bg2 Re2 Ne1 Rd2 Nd3 Rf2 Qg3 Nh3 Qf3 Re2 Nf2 Rd2 Ng4 Rf2 Rd1 h1N Rd2 Nf1 Qa3 Nhg3 Bh1 Nf5 Rd3 Rh2 Rdc3 Nf2 Rh3 N5g3 Rh4 Qc4 Nc8 Qb3 Nd6 Qd5
2QR1rnb/7R/nkpB3p/2N1nr1P/Bp1rr3/3RN1n1/1Bb1K2P/2N4r w - - 0 1 legal: proof: f4 d5 b4 a5 c4 axb4 f5 dxc4 f6 exf6 g3 f5 g4 f4 Bb2 Qd5 Bc1 Qh5 gxh5 Bg4 Bh3 Bd7 Bf1 Bc8 e4 Kd7 a4 Kc6 d4 f5 e5 g5 d5+ Kb6 e6 c3 e7 h6 e8N f3 d6 f4 d7 f2+ Ke2 c2 d8B g4 Bf6 c6 Bfb2 f3+ Kd2 b3 Qe1 g3 Nc3 g2 Qe2 Bg7 Qe6 Na6 Nge2 g1R Nd6 Rg4 Nf5 Re4 Ne3 Bf6 Ba3 b2 Bd6 b1R Bb2 c1N Qh3 Nd3 Nc1 Ne5 Bb5 Bd7 Rd1 f1R Qg4 f2 Ke2 Be6 Rd3 Bb3 Qc8 Bc2 Ra2 Rd4 Ne4 Rh7 Raa3 Re7 Nc5 Bh8 Ra1 Rh1 Ra2 f1N a5+ Ka7 Ba4 b5 Raa3 b4 Ra2 Rf7 Ra1 Rf5 Raa3 Nb8 a6 Kb6 a7 Na6 Ra2 Rb8 a8R Re4 Ra7 Rd4 Rh7 Ra8 Qe6 Raf8 Qc8 Ra1 Raa3 Re4 Rac3 Ra3 Rc4 Rc3 Rcd4 Rc4 Rd5 Rcd4 Bb8 Ng6 Rd8 Ne5 Bd6 Ng3+
1N1N1nN1/Qn3R1n/BKRrPr2/B1q1b1B1/2pP1pb1/1r3bp1/5p1k/6R1 w - - 0 1 illegal: No possible last move
Nk5N/R1R3p1/1n1B3B/K1Pr1p2/1q1P1N2/Q1bBrp1q/2r3p1/2n1Rbb1 w - - 0 1 illegal: No possible last move, all moves rejected
4b1n1/ppn2N1K/4BNr1/k5p1/6BR/B1RPrPn1/Q1nbpq1n/3R3N w - - 0 1 illegal: No proof kernel
1r4kn/1qb5/2p1N3/np1Rp2B/N1P1r1PB/R1n1rb2/2BRpN1r/2K1Q3 w - - 0 1 legal: proof: e4 d5 b4 dxe4 f3 a5 Ba6 axb4 Bd3 Qd7 Bf1 Qd8 Na3 g5 Nb1 g4 g3 h5 fxg4 h4 Bh3 hxg3 Bg2 Ra6 Bf1 Ra8 c4 f5 d4 Kf7 Kd2 e5 h4 b5 a4 b3 a5 g2 d5 f4 h5 f3 h6 f2 d6 b2 d7 Ba3 a6 Bd6 h7 Ne7 a7 Nbc6 Bd3 f1R Ra3 Re1 Bc2 Rb8 a8B Na5 Nh3 g1R Bc6 Rg3 Nc3 Bb7 Na4 Ng6 Rh2 Qc8 Nf2 Rge3 d8N+ Kg7 Be8 Bd5 Nh3 c6 Nf2 Bc7 Qe2 Qb7 Ne6+ Kf6 Qf1 R1e2+ Kd1 b1N Qe1 Ke7 Bd2 Nc3+ Kc1 Kf6 Nec5 Kg7 Rg2 Rf8 h8R Rf4 Rg8+ Kh7 Ne6 Nh8 Rf8 Qa6 Rf7+ Kg8 Rd7 Qb7 Rh2 Rg3 Rg2 e3 Bh5 Bf3 Rd5 Re4 Rh2 Nb1 Bb4 Nc3 Be7 Rd2 Rg2 Rh3 Bh4 Rd3 Nd1 Rh2 Rd2 e2 Nf2 Rde3
Qrr3k1/bb3pn1/2BB2RP/n1p1N1pb/1K2PbN1/3N1R1n/1p5R/5B1q w - - 0 1 illegal: No possible last move, all moves rejected
k1KN3b/3b1R2/1rPN1p2/1B1n1Br1/1qpQ2pR/6bq/pP1R2NB/1n5b w - - 0 1 illegal: No proof kernel
2r1Nq2/3P1pn1/1p5K/Nr5q/p1B1nRqB/1P1r2Q1/B3p1Rn/4NRbk w - - 0 1 illegal: No proof kernel
1KR3N1/4RNBr/4pbqq/NBp1R3/p1bb2bk/Q2b3B/Pp2P2n/3n4 w - - 1 2 legal: proof: c4 f5 b4 c5 g4 cxb4 c5 d6 Bg2 dxc5 Bh3 Nh6 Bf1 Ng8 h4 fxg4 Bg2 g5 Bh3 g3 Bf1 g4 Nc3 a5 Nb1 b5 Qb3 Ra6 Qa4 Rg6 Qd1 Rg5 hxg5 Ba6 Qa4 Bb7 Qd1 Bc8 f4 Kf7 d4 Kg6 Kd2 h5 Kd3 h4 Ke4 Kh5 Ke5 b3 g6 a4 d5 b2 f5 h3 f6 g2 f7 g3 g7 h2 d6 b4 d7 b3 Nf3 g1Q Nh4 g2 Qd3 Ba6 Na3 b1B Bb2 Qb6 d8N Bc4 Nf5 Nh6 g8B Na6 Bh7 Bc2 Rd1 Nb4 Qh3+ Kg5 Rd7 Nd5 Bd4 b2 Rb7 e6 Ne7 Qc6 Bd3 Rh7 Ng8 Be7 f8R Nc3 Qf3 Qd7 Nf7+ Kh4 Rc8 Nd1 Rbc7 Qd8 Rb7 Bg5 Re7 Qf8 Kd6 Bf6 Kc7 Ng4 Kb8 Qh6 Be5 Bg5 Bg7 Bf6 Be4 B2d3 Bc6 Qd4 Bb5 g1B Bg2 Qe4 Bh3 Bgd4 Rg1 h1B Qe3 Bd5 Nc4 Qeg6 Na5 Nh2 Rg5 Bhf3 Re5 Bg4 Qf3 B5c4 Qe3 Be4 Qa3 Bed3
6B1/N2Rp2b/p2n4/KpPqqNN1/pnb2RB1/1Q3R2/P3k2B/b2b1r1q w - - 0 1 illegal: No proof kernel
1r1N2R1/1BRnq2b/Nb1k2pp/Q2p2b1/R2B4/rpKPpP2/8/2nNB2r w - - 0 1 illegal: No proof kernel
1r1N1k2/1RPP3n/1Qb5/1K4pq/1p1NqB1r/3N1pBn/BRp4p/b1Rr4 w - - 0 1 illegal: No proof kernel
k2q2N1/1bppQN2/1p1pBr2/b5Rn/3nr1nP/n1KRB3/p3P2B/R4N2 w - - 0 1 illegal: No possible last move
1q5N/4pP1B/p2bpB2/K1p2r1R/p1NRbb1q/n1q1P3/3Q1N1R/k1Br4 w - - 0 1 illegal: No proof kernel
B2R2QN/1qn3NK/4n1b1/Bq1rnp1b/5r1N/p3nPkB/Pn1R4/4br1R w - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 g5 c5 gxh4 c6 bxc6 Ba6 c5 Bf1 c4 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 g4 h5 b4 a5 d3 c3 b5 e3 b6 c2 b7 a4 Qe1 e2 Rh3 c4 Bb2+ c3 Rh1 c1R Nh3 a3 Rh2 Qe8 Qd1 e1N Qa4 Bf5 Qc4 Ng2 Be2 Qb5 Rh1 Rf1 Qc6 Bg6 Bf3 f5 Qc4 Nf4 Qc6 Ra5 Qa6 Nf6 Be4 N6d5 Nd2 Nd7 b8R Nc7 Rd8 e6 Qa8 Bb4 Bc1 c2 Bg2 Bc3 Bb2 c1N Rb1 Re8 Kh6 Rg8 Ng5 h3 Qb8 h2 Bh3 h4 Ba1 Ra4 Rb2 Rd4 Rc2 Rd5 Rb2 Nb6 Qa8 Nc4 Rc2 Ne3 d4+ Kf6 Qb8 e5 Ndf3 e4 Nf7 Nfe6 Rd2 Nd3 Nh8 Ne5 Bb2 Ba5 Bc3 Rg7 Rd6 Rd7 Qg8 Re7 Rd8 Rg7 Bg2 h3 Nh4 Rgd7 Rg1 h1Q g5+ Ke7 Bb4+ R7d6 Bc3 h2 Bh3 Qf3 Bb4 h1B Bc3 Bg2 Rh1 Rd7 Qe8+ Kd6 Qg8 Rc5 d5 Rc4 Bd4 Ra4 Bb6 Bc3 Ba5 Bb4 Rc2 Be1 Rd2 Qf4 Ra8 Bf3 Rd8 Bfh5 f3 Qh2 Rd1 Qhb2 Rd2 Be8 g6 Rd4 g7 Beg6 Qf7 Qb7 g8B Q2b5 Rdh2 Nd3 Qe8 Ke5 d6 Kf4 Rd2 Ne5 Bf7 Kg3 Qg8 Nc2 Be8 e3 Bf7 e2 Be8 Rg7 Bc6 Rf4 d7 Ne3 Be4 Qa7 Ba8 Qab7 Rb8 Re7 d8N Rd7 Rc8 Rd5 Rb8 Bf2 Rc8 e1N Rb8 Nd4 Ne6 N1d3 Ng7 Nb2 Re8 Be1 Rd8 Be8 Kh7 Nde6 Bb4 Bef7 Ba5 Bfg6+
kbR3RB/N1b2p2/n2pqRb1/B1N3bb/3rb3/bK1P1P1r/rNB3Q1/1n6 w - - 0 1 illegal: No proof kernel
1Rb1bRB1/qb3p2/2Nb1BKb/1R1n4/p2q1PNq/6B1/P1r2qr1/1QNn2k1 w - - 0 1 illegal: Other
2N1qB2/2B1q1Np/4Qqp1/nbb1q3/1nR1r1PR/1B2b2P/3pr1q1/k1K2R1N w - - 0 1 illegal: No possible last move, all moves rejected
n2r2kN/RB1r3q/rbRNN1p1/1n1Q1qP1/2R3b1/2n2pB1/3n1PKp/3b3B w - - 0 1 illegal: No possible last move, all moves rejected
Bq2Nn1r/2KN1Nb1/bp1rkB1R/bPn1qp2/rQ4r1/5P2/n1B3p1/3R3R w - - 0 1 illegal: No possible last move
1r5R/2KQp1pN/6Bk/pnb1B1qn/2R3P1/4R3/Pn2Nr1b/Bbn1n1nN w - - 0 1 illegal: Other
1n3B2/1b1B2r1/1NrbB1Q1/6Nq/nR2pppN/R4PPr/1b2pkr1/1qRK4 w - - 0 1 illegal: No possible last move, all moves rejected
bNB5/1pRq4/rP2RBr1/4p1pr/3k1p2/1B2Rq1N/2bb1PKN/r2Qn2n w - - 0 1 illegal: Other
1Kn4B/8/4k2n/2P1Nqp1/P1RrbB1r/1QpR2r1/2bRrQ2/N5N1 w - - 0 1 legal: proof: c4 c5 g4 f5 d4 h5 gxh5 f4 b4 a6 b5 axb5 e3 bxc4 exf4 c3 f5 Ra7 Ba3 Ra4 Bc1 Ra8 dxc5 b5 f4 e5 a3 e4 Nf3 b4 Bc4 Bd6 Ba2 b3 Ng1 Be5 fxe5 bxa2 Ke2 Ke7 Ke3 d5 Kd4 g5 h4 e3 h6 e2 e6 e1R h5 Qe8 h7 Ra5 a4 Ra6 f6+ Kf8 e7+ Kf7 h6 Rb6 Rh4 Rd6 Nd2 Re3 Qb3 Qf8 e8R Re7 Rd8 Ke6 f7 Re8 Rb1 a1R Rb2 Nd7 Ra2 Qe7 f8Q Nb6 Qf2 Bb7 Rg4 Qf7 Rb2 Ke7 Ke5 Nc8 Rc4 d4 Ra2 d3 Rc2 Rd4 Rd6 Na7 Rd5 Kf8+ Kd6 Qf5 Kc7 Nc8 Kb8 Kf7 Rd6 Re3 Ra2 Rg3 Rd5 Nf6 Rb2 Re8 h8B Ke6 h7 Ng8 Qa3 Rh4 Be5 Rb1 h8N Nh6 Nb3 d2 Nf7 d1B Na1 Rd8 Bcf4 Rd6 Rbd2 Bc2 R5d3 Rd4 Bh8 Re1 Ne5 Be4 Qb3 Re2
rr2B1n1/rqP1Q2n/2RN1Bq1/3n4/2Q1Pnnb/3N1RN1/2b3R1/3k2K1 w - - 0 1 legal: proof: g4 h5 gxh5 a5 h4 c5 a4 e5 d4 cxd4 f4 g5 hxg5 exf4 b4 b5 axb5 axb4 Kf2 Ke7 c4 Kd6 h6 Ke5 h7 Ke4 c5 f5 b6 d5 c6 d3 c7 b3 g6 b2 b7 d4 g7 d2 e3 f3 Na3 b1Q Bb5 d3 Bb2 f4 Bc1 Qd5 Be8 Bf5 Bb2 Nd7 b8Q Ndf6 Ne2 Be7 Ba4 Qb7 Qc1 d1R Nb5 d2 Qc6+ Kd3 Re1 Bd8 Kg1 f2+ Kg2 f1N Kg1 f3 Ra2 Nh2 Ng3 Nhg4 Nd6 Bg6 Rf1 f2+ Kh1 Be7 Qf8 Qc2 Bd4 Ra1 Rb2 d1N Rb6 Bd8 Qe7 Kd2 Qd5 Rb8 Rc6 Nb2 Qc4 Nd3 Bb5 Ra7 Kg2 N8h6 g8R Nf4+ Kh1 Qb1 Bb2 Bc2 e4 Qa2 Rg6 Qaa6 Ba4 Rf8 h8N Nhg8 Nhf7 Nh7 Bf6 Re8 Ne5 Rf8 Re1 f1N Re3 Kd1 Rf3 Nfe3 Nd3 Ned5 Kg1 Re8 Rh6 Rf8 Rh2 Qab6+ Rc5 Q6c6 Rg2 Qe8 Bd7 Qg6 Rc6 Rba8 Qe6 Be7 Qe5 Rfb8 Be8 Bf8 Qe7 Bh6 Qd4 Bg5 Qc4 Bh4
1bq5/Qrb2k2/qR1K3P/n3B1R1/N1N1r1B1/1n6/1rP1br2/NqQ1Q3 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 g5 Kd3 d5 f4 e5 h4 b3 b6 g4 f6 g3 f5 g2 b7 b2 h6 Ra2 h5 Be7 h7 Kf7 h6 Na6 Na3 b1R b8Q Rab2 Ne2 g1B Nc4 Bh2 Qc7 Qf8 Rg1 e4+ Kd2 d3 Kc3 e3 Kd4 d2 Rg5 Bg3 Qe1 Nc5 Nc3 e2 Na4 Ba6 Bh3 Qc8 Bg4 d1Q+ Bd2 Qc1 Bf4 Nb3+ Ke5 d4 Kd5 d3 Be5 d2 Ra3 Nd4 Rb3 d1Q Rb6 Qd3 Qa7 Qa3 Qc7 Nb3 Qa7 Kf8 f7 Bd8 Qc7 Qa2 Kd6 Ne7 Qa7 Rg8 h8Q Nc6 Qf6 Qa1 Qe6 Qa2 Qed7 Nca5 Qdc7 Rg7 Na3 Ra1 Nc4 Qcb1 Qg1 Bb7 Qcb8 e1R Nc5 Bc6 Bf4 Nd2 Nb3 Re3 Kc5 Qe1 Qf2 Rc1 Na1 Bf3+ Bc7 Ke7 f8N Be2 Ne6 Nc6 f6+ Ke8 Qf1 Qaa6 f7+ Ke7 Kd5 Re4 Nc5 Na5 Na4 Ndb3 Qh1 Qg1 Bd6+ Kf6 f8Q+ Rf7 Qbb7 Rf1 Qbb8 Rf3 Qbb7 Qb1 Qc1 Bf4 Bc7+ Bd6 Qh8+ Ke7 Qc3 Rf2 Q3e1 Rg7 Bb8+ Kf8 Qc6 Rb7 Bc7 Kf7 Qd7+ B6e7 Be5 Bc7 Qd6 Bb8 Qc6 Bd8 Qc7+ Ke8 Kd6 Kf8 Bd7 Kf7 Bg4+ Bdxc7+
Q2Q4/rb1BPNRN/n5Kb/1nb5/4rr2/3r2rR/2P1bB2/N2k1n1R w - - 0 1 legal: proof: b4 a5 g4 e5 f4 exf4 d4 h5 gxh5 c5 bxa5 cxd4 a4 b5 a6 Qc7 a5 Qb6 axb6 b4 b7 Nc6 b8B Nxb8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 h4+ Kg4 a7 f5+ Ke5 d5 e4+ f3 h6 g5 h7 b3 h5 f4 h6 b2 Bg2 d3 Qf1 d4 Ra6 d2 Rb6 d1B Rh2 d3 Rh1 d2 Rd6 f2 Rd5 f3 Rc5 Be2 Qe1 f1R Rc6 d1R Qa5 f2 Be3 Ne7 Kf6 Rd3 e5 Nf5 e6 Na6 e7 Bb7 Nf3 Nd4 Qd8 Rg8 h8N Nb5 h7 Bh6 Nbd2 b1R Nf7 Rb4 h8R Re4 Bh3+ Kg3 Bc5 g4 Nb3 Kf4 Rh7 g3 Bd7 g2 Na1 Rg3 N3g5 g1B Re6 Kg4 Rg7 Kf4 Nh7 Kf3 Bd6 Ke3 Bc5+ Kd2 Re5 Kd1 Reh5 Re1 Bb6 f1N R5h3 Bc5 Kf5 Rc8 a8Q Rc7 Nfg5 Rf4+ Kg6 Bd6 Be3 Bc5 Bd4 Bg2 Bf2 Ra7 Bg4 Bb7 Bd7 Bg4 Nf7 Ree4 Bc8 Be2+ Bg4 Rgf3 Bd7 Rg3+
2RN2R1/n1N3bN/Pb4B1/1p2k3/4rb2/Qqn2r2/1PR2K2/rB1Q2nb w - - 0 1 legal: proof: e4 d5 h4 a5 d4 f5 exf5 g5 c4 dxc4 d5 a4 Qxa4+ c6 Qa7 gxh4 Be3 c5 Bxc5 c3 Bd6 Nd7 Bb8 Nxb8 f4 Kf7 a4 Kf6 g4 h5 d6 b5 d7 e5 a5 c2 a6 c1B Be2 e4 Bd1 e3 Bf3 e2 Kf2 h3 Nc3 h4 Be4 h2 Nf3 h3 Rg1 h1R Ng5 h2 Bb1 Rh3 Rg2 Qe7 d8N Nc6 Qd7 Qa3 Qd1 Re3 Rg1 Bb7 Nd5+ Kg7 Nh7 Nge7 g5 Qb3 g6 Na7 Nc7 Nd5 Ra4 Nc3 Rc4 Bc5 Rg2 Bb6 Rc5 Re1 Rg1 Bh1 f6+ Kg8 f7+ Kg7 f8R Re4 f5 Bf4 Nc6 Rae8 Nd8 Re3 Rh8 R8e4 Rg3 Na4 Rc2 Nc3 Nc6 Rg1 Rc8 Re1 Nd8 Rg1 Ng5 Kf6 g7 Ke5 g8B Re1 f6 Rg1 Qd3 Rd1 f7 e1B+ Kf1 Rc1 f8Q Bf2+ Qd1 Be1 Ba2 Ra1 Bb1 Bf2 Rg4 Bh4 Nh7 Bf6 Qa3 Bg7 Rf2 Bf3 Rg6 h1N Rc2 Nf2 Bf7 Nh3 Rg3 Bh1 Bg6 Ng1 Kf2 Bgh6 Bf5 Bf8 Rg8 Bg7 Bg6 Rf3#
1RBB4/P3q3/1r1kn2R/4p2N/qr1N1Rb1/Qr6/N1n3PK/rQ2r1b1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 gxh4 b4 axb4 d4 c5 dxc5 d5 c6 Qa5 c5 Qxc5 Bb2 Qc1 Bxc1 d4 f4 b5 Kf2 e5 a4 Ke7 a5 h5 f6+ Kd6 c7 b3 a6 h3 Kg3 d3 f5 h2 f7 b2 f6 h4+ Kf3 b4 Ra4 b3 Nh3 d2 Bc4 Nc6 Ng5 h3 Kg3 Nge7 Rf1 h1R Nh7 h2 Be6 Nd5 Rff4 Ncb4 Nc3 b1R Na2 b2 a7 Re1 Bh3 Rb8 Ra6+ Rb6 Qc2 Be6 c8R h1Q Rb8 Ra1 Qb1 d1Q Bg4 Be7 f8N Nc7 f7 Qa4 Nf6 Qh7 Nh5 Nc2 Kh2 Bd7 Bh3 Bg4 Ne6 Rc8 Nd4 Ne6 f8Q Rc3 Bd2 Rb3 Ba5 Qg7 Qc8 Bh4 Qc3 Bf2 Qf3 Qe7 Qg3 Rb4 Qa3 Rc6 Bd8 Rb6 Qc1 b1R Qd1 Rb3 Qb1 Bd1 Bf5 Nc7 Bc8 Bg4 Ra5 Ne6 Rc5 Qg7 Rc7 Qg5 Rh7 Qe7 Rh6 Bg1+
3R1n2/2BqRB1k/Q1N1qnrN/2r4P/b2P4/6p1/1K1b3b/1b1BQ1Qr w - - 0 1 legal: proof: c4 a5 a4 b5 axb5 f5 e4 d5 cxd5 Ra6 exf5 Ra8 f4 g5 g4 gxf4 b4 axb4 g5 h5 Qg4 hxg4 Kd1 Kf7 Kc2 Kg7 h4 e5 d4 c5 f6+ Kg6 f7 c4 d6 b3+ Kb2 g3 d7 e4 b6 f3 b7 f2 h5+ Kh7 g6+ Kg7 Na3 e3 Nb5 e2 Nd6 e1B Be2 f1Q Bf4 Ra5 Bd1 Qh3 Nf3 Rh6 Ne5 Bd2 Nc6 Qe6 Re1 Rc5 Ra8 Nf6 Nf5+ Kh8 g7+ Kh7 Re4 Rg6 Nh6 Qc7 d8Q Bd7 Qc8 c3+ Kb1 c2+ Kb2 Bd6 f8Q c1R Qe7 Be3 Re5 Bg1 Re4 Bh2 g8B+ Kh8 Bf7+ Kh7 Be5 Be8 Re2 Nbd7 b8Q Nf8 Qa6 Qcd7 Qba7 Bc7 Rd8 Ba5 Bc7 Bd2 Re3 Ra1 Qf1 Rac1 Qaa6 Ra1 Qg1 Rac1 Ka3 b2 Re2 b1B Kb2 Qf5 Qee3 Qfe6 Qef2 Qed6 Re7 Q6e6 Bf3 Re1 Bd1 Rf1 Qgg2 Rh1 Qe1 Qc8 Qgg1 Bd7 Nb4 Ba4 Nc6 Qcd7
5qrK/Q2P1b2/NN5k/3B2p1/Q1NP4/R6q/n1rBr1qb/Q1n3rR w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Ke3 c5 Kf4 g5+ Ke5 Kg7 h4 b3 f4 b2 d4 c4 h5 g3 b6 g2 d6 c3 b7 c2 f6+ Kh6 f5 Ra6 f7 Nf6 Na3 b1Q Bc4 Qb3 Nh3 g1R Bd2 c1Q Bd5 Ne4 f6 Qcb2 Nf4 Qh3 Qa4 Nf2 Nc4 Be6 d7 Rc6 Qa7 Rg8 Ra3 Na6 b8N Nb4 Na6 Bg7 f8Q Bf7 Qe8 Na2 Qf8 e6 Qb4 Qf8 Qa4 Rc8 Na5 Rc2 Nc4 Kh7 h6 Nd3+ Ke4 Ndc1 Ke5 Kh8 h7 Qb7 Bg2 Qbf3 Nd5 Qf1 Ke4 e5 Bf3 Qhg2 Kf5 e4 Ndb6 e3 Ke5 e2 Bd5 Qe1 Kf5 Qh4 Ke5 e1R+ Kf5 Be6+ Kg6 Re2 f7 Qhg3 Be3 Q3h3 Bd2 Qc5 f8Q Qd6 Qf4 Qf8 Qh4 Bf6+ Kh5 Rg7 Kh6 Be5 Qh5 Bf7 Qh4 Qb3 Qh3 Bh2 Qc3 Be6 Qa1 Rg6+ Kh5 Kg7 h8Q+ Kf7 Qh7+ Kf6 Qg8 Bf7 Bf4 Rg7+ Kh6 Rg6+ Kh7 Qbf3 Kh8 Qfg4 Bg3 Q4h3+ Bh4 Kf5 Qa5 Kg4 Qa4 Kh5 Be1 Kh6 Bd2 Rxg8#
6Nk/3n2qN/2qP4/nN1b2K1/bpQ3Qn/n1bRR1q1/2BP4/1r1B2Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 Bd7 Ne2 Be6 Ng1 Bc8 a4 gxh4 Bb2 Ra5 Bd4 Rb5 axb5 Bd7 Bb6 Bc8 Ba5 b6 Qc2 bxa5 Qc1 Be6 Qd1 Bc8 Ke2 Kf7 Kf3 Kg7 Kf4 h5 g4 e5+ Ke3 c5 f4 e4 d6 a4 g5 h3 b6 h2 g6 h4 b7 h3 Nf3 a3 Nh4 a2 Nc3 c4 Qg4 Nd7 b8Q Ne7 Re1 a1N Be2 Qc7 Nb5 c3 Bd1 c2 Qb6 c1N f6+ Kg8 g7 Ng6 f5 Ncb3 Qa7 Na5 f7+ Kh7 Rhg1 h1B f6 h2 Nf5 Nh4 Kf4 e3 Rg3 e2 Rd3 Nc2 Nh6 Bd5 Qag1 h1Q Kg5 Na3 Ng8 Qc6 Bc2 Qg2 Bd1 Be7 f8Q Qg3 Qf7 Bd8 Rf1 e1Q Rff3 Qe7 Rfe3 Bb6 Bc2 Bd4 Qe6 Qf8 f7 Bc3 Bd1 Bb7 Bc2 Bb3 Qc4 Ba8 Ne7 Ba4 g8B+ Kg7 Bd1 Rh6 Bh7 Kh8 Ng8 Re6 Bg6 Qg7 f8N Rf6 Nh7 Rf1 Bf3 Rb1 Bd1 Qc8 Rf3 Bd5 Rde3 Qf7 Bgc2 Qc6 Rd3 Qf8 Rfe3 Qg7+
nr2Qq2/8/n1r2NBN/7P/k3prPq/3B4/1QR2rRq/1nNKQn2 w - - 0 1 legal: proof: d4 a5 b4 c5 a4 cxd4 e4 f5 b5 fxe4 Ba3 b6 Bb4 axb4 a5 Ra7 axb6 Ra8 g4 h5 Qc1 h4 Qd1 Bb7 Ra4 Bd5 Ra3 Bf7 Ra1 Bh5 gxh5 Rh7 Qc1 Rh6 Qd1 Rh8 Bd3 g5 Qc1 g4 Qd1 g3 Ra3 g2 Bf1 Bh6 Ra2 Bf4 Ra1 Bg3 hxg3 Ra6 Bd3 Ra3 Bf1 Ra8 f4 d5 c4 Kd7 f5 e5 f6 e3 c5 e2 b7 d3 b6 Kc6 g4 Kb5 c6 d4 f7 b3 f8Q e4 c7 d2+ Kf2 b2 c8B h3 Qa3 d3 Ke3 e1Q+ Qe2 d1R Rh2 Qf8 Nf3 g1R Nh4 Rd2 Ra2 Ne7 Rg2 h2 Nf5 h1Q Nh6 Na6 b8N Qh2 b7 Qeh4 Qe1 Rf2 Nd7 Rb8 Nd2 b1N Nf6 Rh7 Nb3 Rf7 Be6 Nc8 Rc2 Nb6 Qb2 Na8 Nc1+ Ka4 Bf5 d2 Bd3 Rf4 Ke2 d1N Bh7 Ne3 Bg6 Nf1 Kd1 Rc7 Bc4 Rc6 Bd3 Rd8 b8Q Rdc8 Qd6 Rb8 Qd8 Rf2 Qe8 Rf4 Rgf2 Rg2 Rfd2 Rgf2 Re2 R2f3 Rg2 Rf2
B5r1/QR1r1n2/1n1qb3/1P1bP2k/1nb1R2N/pB1p1q2/7B/N2KQR2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 c3 h5 gxh5 dxc3 b4 a5 Qb3 a4 Qd1 Bd6 Nd2 Bc7 Nb1 Ba5 bxa5 Ra7 Kf2 Ra6 Ke1 Ra8 h4 d5 e4 g5 e5 f5 a6 Kf7 a7 c2 h6 Kg6 h7 g4 Qe2 f3 Ra2 f2+ Kd2 f4 Qe1 d4 Ra3 f3 Qd1 g3 Qe2 g2 Qe1 Nh6 Bc4 f1B Re3 a3 Re4 f2 Bb3 Nd7 Nf3 Bc4 Rf1 Rg8 h8Q g1Q Qg7+ Kh5 Qe7 Rb8 a8B Nb6 Qa7 Bd5 Ke2 Qh1 Bf4 c1N+ Kd1 Qd6 Bh2 Nf7 Nbd2 Kh6 h5 Bce6 Nh4 Rb7 Bc4 Nd3 Nb3 Qg2 Na1 Nb4 Bb3 Kg5 h6 Rd7 h7 Kh5 Rg1 f1B h8R+ Kg5 Rh7 Bfc4 Rf1 d3 Rg7+ Kh5 Nf3 Nd8 Re7 Nf7 Nh4 Rdd8 Rc7 Rd7 Rb7 Qf3+
qb1Q2R1/2B2N1r/prk2pR1/1nP4q/1bb1Pq2/5N1Q/1n3K2/B2Q2B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 gxh5 g5 h4 d3 hxg5 Nh6 c3 Nf5 Bh3 Ne7 Be6 Ng8 Bb3 Ke7 Ba4 Ke8 Bc2 dxc2 b4 d5 e4 Kd7 h6 d4 g6 f6 b6 d3 g7 d2+ Kf2 a6 c4 f3 h7 Be7 b5 Bb7 Nc3 Bb4 c5 Bd5 b7 Nc6 b8B Nd4 b6 Kc6 b7 Ne7 g8Q Ng6 Rh6 Ne5 Bb2 c1B Bc7 Bc4 b8B Nb5 Rg6 Qc8 Qd8 Nd3+ Kf1 f2 Nf3 Ra7 Ke2 Re8 h8Q Re6 Qh3 f1Q+ Ke3 Rb7 Ra3 Rd6 Ba1 Nb2 Rb3 Rd7 Bh2 Rg7 Bbc7 Rh7 Bg1 Rb6 Ra3 Qa8 Rg8 Qd3+ Kf2 Qd6 Rb3 Na7 Nb5 Qf4 Nd6 Nb5 Qe2 d1Q Nf7 Qd5 Qd1 Qh5 Rd3 Bcd2 Rd5 Bdc3 Rdg5 Be5 R5g6 Rb7 Ba5 Bb8 Bc7 Rb6
1b1R4/1PQ3NB/1n5q/kp2rn2/r2RQ3/rqR1Q1Pn/Nb2pB2/4K3 w - - 0 1 legal: proof: e4 a5 h4 g5 c4 d5 cxd5 f5 exf5 gxh4 b4 axb4 a4 Bg7 a5 Bh6 a6 Bf8 Qb3 b6 Qa3 Bb7 axb7 bxa3 f4 Kd7 d4 h5 g3 e5 d6 Kc6 d7 h3 f6 h2 f7 e4 f5 e3 f6 b5 d5+ Kb6 d6 c5 Be2 a2 Nc3 c4 Ba3 h4 Kf1 h3 Nf3 Rh5 Nh4 Ne7 Rd1 a1R Bd3 Ra4 Bc5+ Ka5 Bh7 R1a3 Na2 c3 Nf5 c2 Ng7 c1B Ke2 Qc7 d8Q Bb2 d7 Re5 Rd6 Qb6 Rc1 h1N Ke1 e2 Be3 Qc7 Rd4 h2 Qc8 Qc4 d8R Qb3 Rc3 Nd7 Qc6 Rh5 Qe4 Nb6 Bg1 Nf2 Qe3 Nh3 Bf2 Ng1 Qe4 h1Q Qe3 Ned5 Qe4 Bb4 f8Q Ne3 f7 Bd6 Qfe7 Re5 f8Q Qh6 Qff3 Nf5 Qfe3 Bb8 Qc7 Nh3
q1n1qK2/Q3QNr1/2q3kp/qN4B1/b4B2/NBPR4/P1p2b1R/2r4q w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 c3 axb4 Rh2 bxc3 Rh3 Ra7 Rh1 Ra8 f4 e5 Qb3 c5 Nf3 e4 Qd1 c2 Ng1 c4 Kf2 c3 dxc3 Nc6 Ke1 Ne5 fxe5 Bc5 Ke2 Be7 Ke1 Bf8 Ke2 Kf7 Ke3 d5 Kd4 b5 g4 b4 g5 h3 f6 b3 e6+ Kg6 Ke5 h2 e7 d4 e8N d3 f7 d2 Na3 e3 Nc7 b2 Qe2 b1Q Nf3 d1Q Ncb5 Bc5 f8B Bd7 Be7 Qb4 Bh3 h6 Be6 Rb8 Bb3 Qba5 Qf2 e2 Bf4 Be8 Ke6 e1Q+ Qe3 Q1d4 Rd1 Rh7 Rd3 Rg7 Bf6 Ne7 Ne5+ Kh7 Qe2 Nc8 Nf7 Kg6 Qe5 Qh4 Qd6 Qa8 Qe7 Qda5 Qa7 Qhf2 Bd8 Qff3 Be7 Kh5 g6 Qd7+ Kf6 Bf2 Bd8 Rh7 g7 Rb7 g8Q Rg7 Qf8 Qfc6+ Qd6 Rg1 Qe6 Rc1 Kg7 Rc7 Bf6 Rb7 Kg8 Kg6 Qe7 Rc7 B6g5 Rb7 Re1 h1Q Kf8 Qd4 Nc7 Qcf3 Qe2 Ba4 Nd6 Qh4 Ncb5 Rg7 Qee7 Qfc6 Nf7 Qdd7 Rh1 Qh5 Rhh3 Qd1 Rh4 Qdh1 Rh2 Qe8+
1N2K2n/1rBR4/n3P3/R1pB3k/1b5n/3pQr1N/2RQqqP1/2n1B2q w - - 0 1 legal: proof: f4 a5 h4 e5 a4 exf4 h5 b5 axb5 g6 Rh4 gxh5 Rh1 h4 d4 c5 b4 Bb7 d5 Bc6 dxc6 Bd6 c3 axb4 cxb4 Bf8 Kd2 h5 Kd3 d5 e4 f5 b6 Kf7 e5 Kg6 e6 d4 Kc4 f3 Kb5 h3 b7 f2 c7 h2 c8R f4 Bb2 h4 Nd2 h3 Rc1 f3 Rc6 d3 Be2 f1Q Ne4 f2 Bf3 Ra7 Rd6 Na6 Kc6 Bh6 b8Q Qe2 b5 f1N b6 Ng3 b7 Nf5 Rd7 Bd2 Qf4 Qf6 b8B Bb4 Bc7 Nh4 Qdd2 Rb7 Rc2 Nh6 Qfe3 Rf8 Bc3 Qf4 Nf6 Nf7 Bd5 Qff2 Ng4 Kh5 Ne5 Nh8 Kd6 Rfb8 Ke7 Rf8 Nc6 Rf3 Nb8 Rf4 Nf3 Rf5 Ng5 Rf3 Rb1 h1N Ke8 h2 Ra1 Ng3 Nh3 h1Q Ra3 Qef1 Ra5 Ne2 Qc1 Qd1 Be1 Qd2 Qb2 Nc1 Qc3 Qd1 Qcd2 Qde2
R1KN3k/2N4P/b4pR1/3nb2q/1N2pB2/P1nQ1B1n/R3nQ1q/4b2r w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 gxh5 d5 cxd5 c5 Nc3 Nh6 Nb1 Ng8 f4 e5 d4 cxd4 e3 b5 Qd2 Ra6 Qd1 Re6 Bb2 e4 Bc1 Re5 fxe5 dxe3 Ke2 g5 h4 g4 d6 g3 d7+ Ke7 e6 Kf6 h6 g2 h5 b3 h7 Kg7 e7 f6 e8R b4 a3 b2 h6+ Kf7 Ra2 b3 Qd3 Qe7 d8N+ Kg6 Nh3 Qe5 Rg1 Bd6 Nc3 b1Q Ng5 b2 Nd5 Nc6 Nb4 Nge7 Nge6 Ba6 Nc7 Qc2+ Bd2 b1N Rf8 Rg8 h8Q Nd5 h7 Rg7 Qg8 Qf5 Qe6 Be5 Qd7 Qh3 Qf5+ Kh6 Qf2 Nd4+ Ke1 Rg4 Be2 Kg7 Bf3 e2 Bf4 Nbc3 Re8 Rh4 Rh8 Qa4 Kd2 Qb5 Rf8 Qh2 Rh8 Nb6 Ke3 e1B Rf8 Nde2 Re8 Bd6 Rh8 Qh5 Rf8 Nc1 Kd4 Be5+ Kc5 N1e2 Kc6 Nbd5 Kd7 Rh3 Ndc6 Rh4 Ra8 Rh3 Nd8 Kh8 Rf1 Bb5+ Kc8 g1N Nca6 Rh4 Nc7 Nh3 Rg1 Bc4 Rg6 Ba6+ Nb7 Rg4 Qfd4 Rg1 Qf2 Bc4 Nd8 Rh1 Rb2 Bb5 Ra2 Ba6+
b2KNq2/n3pp1k/3N3p/B2bNPQ1/2Bn4/RrRQ4/b1r3P1/B4r2 w - - 0 1 legal: proof: b4 a5 h4 g5 e4 b5 f4 c5 bxc5 d5 f5 dxe4 Qg4 Bh6 Qf4 gxf4 a4 Bg5 hxg5 Qd4 Rh2 Qxa4 Rh1 Qd4 Rxa5 Qd3 Ra1 Qd8 Kf2 Kf8 c4 Kg7 d4 h6 c6 f3 Ke3 b4 c7 b3 d5 b2 Kd4 f2 Kc5 e3 Kb6 e2 d6 e1R d7 Ra7 c5 Re5 g6 Re2 c6 Re3 Rh3 Re6 Raa3 Ra4 Nd2 Rh4 Nc4 b1B Nf3 Bb7 Bb2+ Nf6 Ba1 Re3 Nfe5 Ne8 Nd6 Ba2 Rf3 Kg8 g7 Kh7 g8N Qc8 d8B Ba8 Ba6 f1B Nf6+ Kg7 Be2 Rb3+ Bb5 Bc4 Rh3 Qd7 c8Q Bd5 c7 Rf4 Qa6 Nc6 c8Q Nd4 Qc1 Rf1 Qd2 Rf8 Qg5+ Kh8 Re3 Qc8 Rh3 Nc7 Rg3 Rbf3 Be2 R3f2 Rgc3 Ncb5 Bc7 Qe8 Bd8 Na7 Kc7 Bdc4 Bd3 Bcd5 Qb5 Rd2 Qb1 Re2 Bc4 Rb2 Qd3 Rc2 Nh5 Kh7 Ng7 Nac6 Kc8 Rh8 Kc7 Qg8 Kd7 Na7 Bb6 Qb8 Ba5 Rc8 Ne4 Rc6 Nd6 Qf8 Nge8 Rb6 Kd8 Rb3
qnQR4/P2b1Q2/2Np1pBR/K3pBr1/1qN1B2P/1qr5/3N3n/kn6 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 Rh7 d4 Rh6 b4 axb4 d5 Rh8 d6 cxd6 a4 Nf6 e5 Ng8 Ba3 bxa3 e6 Qb6 Bd3 Kd8 exd7 Kc7 Bc4 Kc6 Bf1 Qd8 f4 e6 f5 Na6 f6 Be7 fxe7 Nb8 Kd2 Kd5 e8B Kd4 c4 g5 h6 b5 h7 f6 a5 b4 c5 g4 a6 g3 c6 b3 c7 g2 Qh5 b2 Bd3 a2 Beg6 e5 Bde4 Nh6 Na3 Rg8 h8Q Ng4 Nc4 Qe7 d8N Bd7 c8B b1N+ Kc2 Ra7 Kb3 Rc7 Kb4 Qg7 h3 Nh2 Ka5 Kc3 Nf3 g1Q Nc6 Qd1 Nfd2 Qb3 Q5h7 Qe7 Qf7 Rg7 Bh7 Rg5 Bhg6 Na3 Rag1 a1Q a7 Nb1+ Na3 Qab2 Nac4 Qe8 Rg4 Qf8 Rh4 Qb7 Rh6 Q2b3 h4 Qd8 Rg1 Qg8 Nb6 Kb2 Nbc4+ Ka1 Rg2 Be8 Bcf5 Bd7 Rg3 Na6 Rg4 Qga8 Qc8 Nb8 Bh7 Rh5 Rg8 Rg5 Bhg6 Qh3 Rd8 Qhb3 Ne7 Rc6 Nb6 Rc2 Nbc4 Rc3 Nc6 Q7b4+
1K2r2B/7N/8/R5BP/RpN1QnPr/p3p3/qbnNQ3/rQ2nnk1 w - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 f4 b4 a6 b5 f3 a5 Nh6 exf3 Bf5 f4 Bc8 f5 Ng8 Bd3 axb5 Bc2 Ra7 Ba4 Ra8 g4 bxa4 f3 h5 Nh3 hxg4 Ng1 g3 Qb3 g2 Qc2 Qd6 Qd1 Qd8 Nc3 g5 Kf2 g4 Qf1 g3+ Ke1 Be6 Nb1 Bf7 Qe2 Bh5 Qd1 Bg4 fxg4 Ra7 Ba3 Ra6 Bc1 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 h4 b4 f6 Nh6 d3 Nf5 f7 Ne3 a6 Nf1 Nf3 g1N a7 g2 d6 Ne2 d7 g1N Bg5 Nf4 Na3 Bg7+ Bf6 c6 f8N Qa5 d8B e6 Nd2 Nf3+ Ke4 e5 h5 Ne1 Nh7 Re8 Qb1 Qa6 Kf5 Kd4 Nac4 c5 Bg5 Bh8 Bdf6 Nc6 Bg7 Qa5 Kf6 e4 Ra2 Kc3 d4 e3 d5 Nd4 d6 Ndc2 d7 Kd3 d8Q+ Ke2 Qd3+ Kf2 Rh2+ Kg1 Qe2 Qa6+ Kf7 Qa5 Ba1 Bb2 Rf2 Rh8 Ke7 Rhe8+ Kd7 Qa6 Kc7 Qe6 Ne5 c4 Rh2 c3 Nec4 Nd4 Kb7 c2 Kc7 c1R Kb7 Rad8 a8Q Ndc2 Kc7 Qa6 Qe4 Ra8 Rf2 Nh3 Rf5 Nf4 Ra3 Rd1 Ra5 Qe6 Nb6 Qa2 Nbc4 Bc1 Bh8 Bb2 Nb3 Rd2 Q2f3 Rh2 Nbd2 Rh4 Qe2 Rad8 Rd3 Rd6 Rdd5 a3 Ra4 Rf6 Rda5 Rd6 Nb3 Rd1 Nbd2 Nd4 Qbd3 Ra1 Qb1 Ndc2 Kb7 Re7+ Kb8 Re8+
R1R3Rb/2p2n1q/4N2n/2bB1P2/BKQNQ1pp/4bP2/1n2nkN1/6r1 w - - 0 1 legal: proof: d4 d5 a4 a5 c4 dxc4 h4 g5 d5 e5 d6 b5 axb5 g4 Qd4 Ra7 d7+ Ke7 Qd5 Rb7 Qd1 Qe8 d8N Qd7 Ne6 Qd8 Nd4 exd4 Bg5+ Kd7 Bc1 Ke8 e4 f6 e5 Kf7 e6+ Ke8 Bf4 Bd7 Be5 fxe5 f3 Bc6 f4 Bf3 gxf3 Rb6 Bh3 Rd6 Bf1 Rd7 Bd3 Rg7 Bf1 Rg5 hxg5 Qc8 Ke2 Qd7 Ke1 Qd8 Kd2 Ke7 b4 Kd6 f5 Kd5 g6 h5 e7 d3 Kc3 e4 e8N d2 b6 e3 b7 e2 b5 e1B g7 a4 b6 a3 Ne2 a2 Qc1 Bc5 Na3 Qe7 Nd4 Bf2 Nac2 Be3 Ne1 Nc6 b8R Nd8 b7 Nh6 g8B+ Ndf7 Ng7 Rh7 Nge6 d1N+ Kc2 c3 Kb3 c2 Bb5 Rh8 Rc8 Nb2 b8Q Rh7 Qb1 c1N+ Kc3 Qh4 Ba4 Ne2+ Kb3 Qh2 Qb5 Rh8 Qc4+ Ke5 Nd8 Kf4 N8e6+ Kg3 Ng2 Kf2 Qe4 Qh3 Rhd1 Qh4 Nb5 Qe7 Rdd8 h4 Nbd4 Qd7 Bh7 Re8 Bg8 Qe7 Rb1 a1B Ra8 Qg5 Rdc8 Qg6 Rd1 Qh7 Rd2 Ba7 Kb4 Rd8 Nb5 Re8 Rdd8 Re7 Rf8 Rd7 Rfd8 Rd1 Nbd4 Rg1 Nc5 Ne5 Bd5 Nef7 Rg8 Bb6 Nce6 Bc5+ Ka5 Nd3 Nb5 Bf6 Nbd4 Nb2 Kb5 Bh8 Ka5 Ba7 Kb4 Bc5+
Q5bR/2P3Br/1QP1R1B1/r1pNrpr1/4R3/r2nN1rp/k3b2K/7B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 b5 f6 b3 Kf2 b4 Ke1 exf6 Ba3 f5 Bc1 f4 d4 c5 d5 Qa5 d6 Qb5 cxb5 Nc6 bxc6 Be7 Kf2 Bd8 Ke1 Bc7 dxc7 Bb7 Nd2 Ba6 Nb1 Bc8 Kf2 Ke7 g4 Ke6 Kg2 h5 a4 d5 e4 f5 a5 b2 e5 h3+ Kh2 h4 g5 b3 a6 f3 g6 f2 a7 d4 g7 Kd5 e6 d3 e7 Kc4 e8R Ne7 g8Q+ Nd5 Rf8 Be6 Ne2 d2 Bg2 f1B Nec3 Be2 Ra5 Nb4 Re8 Rh5 Ra4 Rg5 Nd5 Bf7 Qe1 d1R Re6 Rd3 Nbc3 b1R Bb2 Ra1 Nd1 Rdg3 Bg7 b2 N1e3+ Kb3 Qb1 Nd3 Rae4 Ra5 Qf8 Re8 a8B Bg8 Bb7 Re7 Qa8 Ra3 Qf1 b1R Ba6 Ka2 Bc4+ Rb3 Qe1 Ra5 Qb4 Re8 Qb6 Re7 Ba6 Rba3 Bc8 Re8 Bd7 Re7 Rh6 Re5 Be8 Rf3 Rh8 Rfg3 Bg6 Rh5 Rc1 Rhg5 Kh1 h2 Rcc4 Re7 Re6 Re8 Rce4 Re7 Rd6 Re5 Re6 Bd1 Rg4 Be2 Be4 Rh3 Kg2 h1R Bf3 R1h2+ Kg1 Rg3+ Bg2 Rhh3 Rd4 R3g4 Re4 Rhg3 Kh2 h3 Bf3 Rh4 Bh1 Rh7
1RN3K1/1p6/1p2krb1/1qP1B3/4p1pQ/2n1q1RP/2BNnb2/3n1NBQ w - - 0 1 legal: proof: b4 c5 g4 f5 d4 cxd4 e4 h5 exf5 Na6 gxh5 Nc7 b5 Rb8 b6 axb6 a4 Ra8 Kd2 Ra5 Ke1 Rb5 axb5 Nxb5 Kd2 Kf7 Kd3 e5 Kc4 g5 Kd5 e4 c4 g4 f4 d3 h6 d2 f6 d6 f5 Qe7 h7 Qe8 h3 Be7 c5 Na3 Bd3 Bd7 Nf3 Bc8 Nh2 Qb5 Rg1 Nc4 Rg3 Qe8 Qh1 d1N Nf1 Na3 Be3 Nb5 Bg1 Nh6 Bc2 Rf8 h8Q Bd8 Ra8 Nbc3+ Kc4 Qc6 Rb8 d5+ Kd4 Bd7 Ke5 d4 Nbd2 Qb5 Kd6 d3 Ke5 Ng8 Qh4 Ne2 Kd6 Ne7 Ke5 Kg8 f7+ Kg7 Kd6 Be8 Ke6 Nd5 f6+ Kg6 Bf2 N5c3 Bg1 Bc7 Ke7 Be5 Ke6 Bd4 Ke7 Rh8 f8N+ Kf5 f7 Rh6 Ng6 Bf2 Kf8 Ke6 Ne7 Rg6 Nc8 Rf6 Nc4 d2 Kg8 Nb1 f8B Nbc3 Bd6 Bg6 Be7 Ne3 Bf8 d1Q Ncd2 Qc1 Bd6 Ned1 Bc7 Qa3 Be5 Qc1 Nc4 Qf4 Ncd2 Qe3
3Nk1bN/6QB/q1qp4/1bR1Pq2/2Q1p3/Rpnp3P/r1Rb4/3Q1BK1 w - - 0 1 legal: proof: b4 h5 e4 c5 g4 a5 d4 cxd4 gxh5 axb4 a4 Nf6 Bb2 Ng8 Ba3 bxa3 f4 b5 e5 d6 Qf3 Ra7 Qe2 Nc6 Qd1 Rd7 e6 Ne5 Qd3 Qb6 Qd2 Qd8 Qd1 Qc7 exd7+ Kd8 Ra2 e6 Kf2 Ke7 Ke1 Qd8 Ra1 Ng6 Be2 e5 Bd3 e4 Bf1 Ne5 fxe5 Rh6 Qd3 Rh7 Qd1 Rh8 Kf2 g5 c4 f5 a5 g4 h6 d3 a6 f4 h7 a2 a7 f3 a8B b4 c5 b3 c6 Qc7 d8R Qd7 h3 Qf5 c7 Nf6 Bd5 Ba6 c8Q Bb5 Bg8 Nd5 Qc4 Nc3 Rh2 Bh6 Rc8 Bd2 Ne2 g3+ Kg1 g2 Nd4 Kd7 Rc5 Ke8 Bd5 Rg8 Nc6 Rg7 Nd8 Ra7 Bg8 Ra5 h8Q Ra6 Rh1 f2+ Kh2 Ra7 Qg7 Ra4 Bh7 Ra3 Be2 f1B Kg1 Ra6 Rh2 Ra7 Nf7 Ra3 Nh8 Ra4 Bf3 Be2 Na3 Ra5 Nc2 Ra6 Rb1 a1Q Nb4 Ra2 Rb2 Qc1 Rc2 Qa3 Nc6 Qa6 Nd8 Qc6 Qe1 Bd1 Be2 Qa6 Bf1 Bh5 Rc1 Bf7 Ra1 Bg8 Qd1 Rb2 Ra4 Ra2 Ra3 Qe6 Kf2 Qf5+ Kg3 g1Q+ Rg2 Qd4 Kh2 Qd5 Kg1 Qdc6 Rf2 Bg5 Rc2 Bd2
N2k4/1q1B2Q1/RRP1Q1q1/4p1b1/1rpP3p/1N1BK1p1/3Bb1b1/Nqr5 w - - 0 1 legal: proof: c4 b5 e4 d5 b4 f5 a4 fxe4 Qe2 c5 axb5 cxb4 c5 Bg4 Qd3 Bc8 Qc4 dxc4 g4 g5 h4 Na6 f4 Nh6 f5 Nc7 f6 Nf5 gxf5 g4 Bh3 Ne6 Bf1 Ng5 hxg5 Qa5 Rh4 Qb6 Rh1 Qd8 Kf2 h5 d4 e5 c6 a5 g6 b3 g7 g3+ Ke3 a4 g8B a3 f7+ Ke7 f6+ Ke6 b6 b2 b7 a2 b8Q h4 Nf3 Qe7 Bd2 Qb7 Bd3 Be7 Na3 b1B Nc2 Ra4 Bh7 Rb4 f8N+ Kf7 Qa8 Ke8 f7+ Kd8 Nd7 Rf8 Bf5 Bf6 Nb6 Bg5+ Ke2 e3 Bd7 Re8 Qa7 Re6 Qa5 Rf6 Qd5 Rf4 Qe6 Rf5 Nfe1 Rf1 Nf3 Rg1 Na8 Rc1 Be8 Bd7 f8Q Bc8 Qg7 Bd7 Qeg8 Bg4 Qe6 Bh3 Bd7 Bg2 Na3 Bc2 Rg1 Ba4 Nc2 Bb3 Rb1 a1Q Re1 Qaa7 Na1 Qc5 Rb2 Qd6 Ra2 Bc2 Ra6 Ba4 Qd5 Qg6 Qe6 Rc3 Rb1 Rc1 Bc3 Bb3 Nd2 Bc2 Ndb3 Bd1+ Ke1 e2 Rb2 Be7 Kd2 Bf6 Ke3 e1Q+ Re2 Qh1 Rb2 Be2 Bd2 Be7 Rb6 Qd1 Ra2 Qc2 Ra5 Qb1 Raa6 Bg5+
QQ6/1b1P1r2/1pq1Rpb1/1R1NQR2/2rN2Kp/B3q2B/1p5P/r1k1r3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 a5 f5 axb4 e3 d5 f6 d3 Nh3 d2+ Ke2 gxf6 Ng1 f5 Bb2 f4 Ba3 Be6 Bc1 Bc8 a4 d4 Kf2 Na6 Bxa6 Bg7 Bf1 d3 Nf3 Bd4 exd4 Nf6 Ng1 Nh5 Qxh5 Kd7 Qd1 Ke8 Kf3 Kd7 g4 Kc6 c4 e5 a5 h5 a6 h4 a7 b3 c5 Kd5 g5 Kc4 d5 b2 g6 Qd6 g7 Qc6 Qe2 Kb3 g8R Kc2 Qe1 d1Q+ Ne2 d2 Bh3 f6 Rhg1 Rh7 Re8 Rf7 Nc3 Rb8 Qg3 Qe1 a8Q d1B Rb1 Bf5 Rh1 Rc8 Rf1 Bg6 Kg4 f3 d6 f2 d7 Qd2 Re6 Qe3 Nd5 Rc7 Rg1 f1R Qb8 Re1 Rf1 Rc8 Rf5 Rc7 Bd2 Rg1 Bb4 b6 Ra1 e4 Ra5 Kb1 Rb5 Ba4 Nd4 Kc1 Ba3 Rh1 Rb4 Bb5 Rb3 Ba6 Rb5 Bb7 Qd6 Qh6 Qg3 e3 Qe5 e2 Qa8 e1R Qb8 Qd6 c6 Qe3 Qa8 Rc8 c7 Qc6 Rd6 Re8 c8Q Rhf1 Qcb8 Ree7 Qf4 Re4 Re6 Rh1 Nc2 Rc4 Nd4 Kd2 Qfe5 Ra1 Bf1 Kc1 Bh3 Re1
q3r1b1/3KqNn1/nR1Q4/1BBN4/b3qN2/BrR2q2/1QqrP2P/2b4k w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Ke7 d4 Kf6 b6 Kg5 d6 Kh4 b7 g5 d7 c5 d5 f5 d6 f3 Ke3 g3 Ra2 g2 Ra4 f2 Kf3 g4+ Kf4 b3 Ke5 f4 Ke6 f3 Ra7 g3 Nd2 c4 Bb2 c3 Qb1 c2 Ne4 c1Q Ba1 b2 Qc2 b1R Qa2 Bh6 Bc3 Qe7+ Kd5 Rb3 d8N Nf6+ Kc5 Nh5 Kd5 Qc2 d7 Bc1 Nf7 Na6 Kc6 Ng7 b8B Rd8 Nh3 g1Q Qa3 Qg2 Bf4 Re8 d8Q Be6 Qc7 Rad8 Qb2 Rd2 Bd6 Bc4 Bcb4 Kg4 Nd8 Bg8+ Bbc5 Kh4 Nf4 Kg4 Nfe6 Kh3 Nf6 Rb4 Nd5 Qb1 Nb6 Rb3 Rg1 Qc2 Nf4+ Kg4 Rb7 Qh1 Bg2 f1B Qe5 f2 Qb2 Kh4 Bf3 Bg2 Nf7 f1Q Bd5 Bf3 Rg2 Bg4 Bc4 Qf2 Bd4 Bd7+ Kd5 Bb5 Ba3 Ba4 Bb5 Qfe3 Qd6 Qf1 Nd3 Kh3 Bdc5 Qff4 Rf2 g2 Kc6 Qfg3 Rf3 Qd4 Qc7 Qdd8 Nd5 Qa8 Qd6 Qe4 Rf4 Qh4 Rg4 g1Q Kd7 Qgg3 Rb6 Kg2 N3f4+ Kh1 Rg6 Qgg2 Rg3 Qf6 Re3 Qgf3 Rc3 Qfe7+
1Bbbq2Q/n2qN1Kn/B7/5Q2/b2Rr1Rb/N1PQqB2/1b2Pn1r/5k2 w - - 0 1 legal: proof: b4 a5 g4 e5 a4 h5 f4 hxg4 d4 exf4 bxa5 b5 axb5 c5 Qd2 cxd4 Qd3 Rh4 Qd1 Rh8 Kf2 Ke7 h4 Ke6 b6 Ke5 b7 Ke4 a6 f5 a7 d5 c3 g5 h5 f3 Kg3 d3 h6 d2 h7 Ke3 Qb3 f2 Ra4 f4+ Kg2 g3 Rd4 g4 Bb2 d1B Nh3 Nc6 b8Q Ba3 Q8b4 Qe8 Qc2 Nf6 Rg1 f3+ Kh1 g2+ Kh2 Rb8 a8B Na7 Qbb3 Rb4 Rc4 d4 Kg3 d3 Kh4 g3 Kg5 d2 Rf4 Re4 Bc1 Bb2 Rh1 g1B Kh6 g2 Qa4 Bh2 Qc4 g1B Bb7 Bg3 Qf7 Bh4 Bg2 f1Q Rg4 f2 Ba6 Qe1 Rh2 f1Q Bf3 Qef2 Nf4 Qh3 Ng6 Qfg3 Rh1 Kf2 Qd3 Kf1 Ne7 Ba4 Kg7 d1N Bf4 Nf2 Bb8 Qd6 Qf8 Qdd7 Na3 Qg3 Rh2 Qf4 Qf7 Qe3 Rh3 Bh2 Qfd5 Bc7 Qf5 Bd8 Rh2 Rf8 h8Q Nh7 Rhg2 Rf6 Rf4 Rh6 Rgg4 Re5 Rd4 Re4 Qf7 Bg3 Qf4 Rh2 Qf5 Bh4
n1r1rQ1B/1N2r3/qk1NR3/4Q1P1/R2q4/3n2Nb/BP1K3r/b2bn1rB w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 e4 d5 c4 Kd7 b6 Kc6 e5 a5 c5 h5 b7 f5 e6 d3 e7 d4 e8Q+ Nd7 Na3 d2+ Ke2 g2 Nc2 a4 Qe1 d1B+ Kd3 f4 Q1e2 f3 Q2e7 g3 Ra2 f2 Rh3 a3 Ne2 g1R Rh4 g2 Qe3 Nf6 Q3e5 Ne4 Q8e7 Nb6 Qh7 Re8 Qf7 Bh3 Bd2 Rc8 Ne3 Na8 b8N+ Kb5 c6+ Kb6 Ra1 a2 Bc3 Nc5+ Kd2 d3 c7 Qd4 Re4 h4 Ng3 Re7 Be2 f1Q Nc6 Rce8 c8B Qf6 Rb1 a1B Nd8 Qe6 Qf2 Qa2 Be6 Qa6 Nb7 Rc8 Nef5 Re1 Bf3 g1N Bg2 Nf3+ Kc1 Rg1 Ba2 Ne1 Kd2 Rce8 Rc1 Rc8 Rc2 Rce8 Kc1 d2+ Kb1 Qda4 Qd5 Bdg4 Bf3 d1R+ Rc1 Bf1 Bh8 h3 Nfd6 h2 Re6 h1R Qe5 Rh2 Bh1 Qd4 Qf8 Rd3 Rc4 Bfh3 Kc1 Bd1 Ra4 Rb3 Qe2 Ncd3+ Kd2 Rb4 Be5 Rc4 Bh8 Ng2 Qe1 Rcc8 Qe5 Nge1+
B1bn1Q1R/N2Q3R/K1BqP1q1/3RN1rP/1b3b2/2r1q3/2rq1B2/3q1kn1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Qb3 g4 e4 h5 Qf3 gxf3 g4 Nh6 g5 Ng8 b4 Rh7 Ra3 Rh8 Re3 Be7 Re2 Bf8 Rg2 Qd7 Rg3 Qd8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 Kc3 c5 Kc4 a5 h4 f5 g6 f2 b6 a4 Kb5 c4 b7 f3 h5 a3 g7 a2 Ba3 a1Q Bg2 f1R Rh2 g3 Ne2 c3 Bc1 c2 Rh3 f2 Nd2 f4 Nb3 f3 Ng1 Ra2 Bg5 c1B Na5 Na6 b8R Nc5 Nc6 Rc2 Na7 Qa3 Bh4 Bf4 Rb7 Nh6 g8B Ng4 Rh7 Ne5 Bf7 Rfc1 Be8 Qb3 Bc6 Nb7 Ka6 f1Q+ b5 f2 Nf3 Qd1 b6 Rg8 Rh1 Qd2 Rd1 Qbe3 Bh1 Ng6 Ne5 g2 Bg3 g1Q Bh4 Na5+ b7 Qg4 Bg3 Nh4 Bg2 Rg5 Bh1 Bf5 b8R Nb7 Bg2 Be7 Rc8 Qd7 Rch8 Nf3 Bh1 Ng1 Bg2 Qb4 Rd3 f1Q Bf2 Qfd1 Bf3 Qbd2 Bh1 Qd8 Bg2 Kc7 d6+ Kb8 d5 Bc8 d7 Kc7 Bh1 Kd6 Bf3 Kc5 d6 Kb4 Rd5 Kc3 Bg2 Qc7 d8Q Qe6 d7 Bb4 Qe8 Qcd6 d8Q Qf6 Qed7 Qg6 Nf3 Kc4 e5 Rc3 e6 R1c2 Rb5 Kd3 Rd5+ Ke2 Qf8 Rc4 Bh1 R4c3 Ne5 Kf1 Ra5 Qe7 Bce4 Nd8+ Bb7 Q7c5 Bc6 Qcd6 Rd5 Q2e1 Kb5 Qe1d2 Ba8 Nb7 Ka6 Nd8+
1RNbbQ2/3k2qB/PKnr4/N4RP1/5q1r/q3Nq2/2B1r2n/1n1QqQ2 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 f4 e5 hxg5 axb4 c4 exf4 Ba3 bxa3 cxd5 Qf6 Qc2 Qe7 Qd1 Qd8 Kf2 f5 g4 h5 d4 b5 e4 c5 e5 b4 g6 c4 d6 f3 Ke3 f2 g5 a2 e6 f4+ Ke4 h4 Kd5 f3 Kc5 b3 d5 h3 e7 h2 g7 c3 a5 c2 a6 c1Q+ Nc3 b2 Ne2 b1N Nd4 Nc6 Bd3 f1Q Bc2 f2 Nb3 Qf4 Na5 Kd7 e8N Nh6 g8B Qe7 Bgh7 Qfe1 Rf1 h1Q Kb6 Ng4 Qc1 Nh2 Nd1 Qhe4 Ne3 Qg7 Qd1 Be7 Qf3 Nd2 Rb1 a1Q Rb5 Nb1 Qh1 Kd8 d7 Qef3 Nd6 Qa3 Qg2 Bb7 Nc8 Ra7 Rg1 Re8 Qf1 Bf6 Rb2 Re6 Rg3 Rd6 Rh3 Be7 Rh6 Ra8 Rf6 Ra7 Rf5 Bf6 Qh3 f1R Rb5 Rg1 Qf1 Rg4 Qf2 Re6 Ng2 Q4e4 Qf1 Nb4+ Kc5 Bc6 Rb8 Qef4 Kb6 Re2 Ne3 Rh4 Nd6+ Ke7 Nc8+ Kf7 d8Q Be8 d6 Ke6 Qg1 Re7 d7 Nc6 Qg2 Rf7 Qf1 Be7 Nb7 Rf6 Na5 Bg6 Qf8 Be8 d8Q Rg6 Qd1 Bd8+ Kb5 Rgh6 Qc1 Kd7 Qd2+ Rd6 Qd1 Be7 Kb6 Bd8+
2Bn3b/1bK4k/3r4/RRNB4/1N2R1nq/NbQP1brP/r6b/1bQq4 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 e5 f4 exf4 b5 d5 cxd5 b6 Ba3 Qf6 Bb4 axb4 a5 Qd6 axb6 Qd8 Kf2 g5 e4 c5 e5 f5 e6 f3 Kg3 c4 h3 f4+ Kh2 f2 b7 b3 e7 Kf7 e8B+ Kg7 b6 f3 Kg3 c3 d6 b2 d7 c2 Ba6 c1Q Qf1 Nc6 b8R Bb7 Ra4 Nh6 Ne2 Qd1 Nec3 Kh7 Ne4 Bg7 Nbc3 b1B Nb5 Qe7 Ra1 Nd8 Ra5 Bd4 Qe1 f1B Na3 f2 Bf7 Bg2 Bd5 f1B Nc5 Bc4 d3 Bb3 Qc3 Bf3 Re1 Rg8 Re2 Rg6 Re4 Rd6 Qc1 Bh8 Qc3 Ndf7 d8Q Qf6 Qe8 Nd8 Qee5 Ra7 Qf4 Qd4 Qfc1 Qa4 Kf2 g3+ Ke3 g4 Kf4 g2 Ra8 g1B Rb5 Bc8 b7 g3 b8N g2 Nc6 Bb7 Nb4 Ng4 Kf5 Bgd4 Kf4 g1R Kf5 Rg3 Kf4 Bc6 Bc8 Bg1 Kf5 Bh2 Kf4 Rg7 Raa5 Bb7 Kf5 Nf6 Ke5 Rg2+ Qf4 R7g3 Qfc1 Ra2 Bf7 Rd4 Bd5 Ng4+ Kd6 Bh1 Kc7 Bf3 Bc4 Rd6 Bf7 Bd4 Bd5 Bh8 Nc6 Qd4 Nb4 Qf6 Ra6 Qg5 Raa5 Qh4
1R1b1K1Q/2bk2rq/2N2bb1/nq2n3/1R2NQPb/1Rn5/1Pr3Q1/2B1bB2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 f4 h5 g4 g5 Qa4 gxf4 Qa3 h4 Qg3 hxg3 Ke2 e5 d4 c5 h4 a5 d6 e3 Kd3 e2 Ke4 e1B Kd5 g2 b6 a4 b7 a3 h5 f3 h6 c4 h7 e4 Bf4 a2 Bh6 e3 Ke5 f2 d5 e2 Nd2 c3 Bg5 c2 Bh4 c1B Ndf3 Kd7 Rh3 Ra7 Rg3 Be7 Nd2 Nc6+ Kf5 Qc7 Kg6 Bf6 Kf7 Nge7 Ngf3 g1B b8Q Bh2 Ne4 Bcg5 Nd4 Rd8 Rc1 a1N h8Q Nb3 Rc4 Nba5 Rb4 Ba6 Re3 Rc8 Reb3 Bd3 Bg3 Bh4 Bf4 Bd2 Qb7 e1B Qb8 Bc3 Bc1 Bfg5 Kg7 Ne5 Nc6 Qb7 Qa8 Rc7 Kf8 Bd4 Nd8 Rc2 Nc6 Bf6 Qh6 Bb6 Qf4 Bd8 Nb8+ Kc8 d7+ Kc7 Nc6 Qb5 Bg2 f1Q Bh3 Qh1 d6+ Kb6 Bf1 Nd5 Nf2 Bg6 Ne4 Bc7 d8Q Nc3 Qe8 Bcd8 d7 Kc7 Qe6 Bg1 Qg8 Bb6 Qh8 Qh3 Ng5 Kd6 Ne4+ Ke6 Qb7 Bdc7 d8R Qh1 Rb8 Kd7 Qa6 Bcd8 Qb7+ Bbc7 Qe3 Bhg5 Qf4 Qh7 Qb6 Bgh4 Qbf2 Ra8 Qg2 Ra6 Na7 Re6 Nc6 Re7 Rc4 Rg7 Rd4+ Ke6 Rdb4 Kd7
1q3Knk/N7/1RnQB1P1/P3Nn2/r7/Rbn3RB/2r1n3/rBbq1Qn1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 f4 e5 hxg5 axb4 c4 exf4 Ba3 bxa3 cxd5 Qf6 Qc2 Qe7 Qd1 Qd8 Kf2 f5 Kf3 Kf7 g4 Kg7 e4 h5 d4 b5 g6 c5 d6 a2 e5 b4 g5 h4 d7 c4 d5 h3 e6 h2 d6 c3 e7 c2 e8B c1N Nc3 b3 Nd5 b2 Nc3 b1N Nb5 Nc6 Na7 Ne2 Bh3 Nbc3 Qf1 Bb7 Rb1 a1R Rb6 Qb8 d8R Ba6 d7 Bc4 Rc8 Ba3 d8Q Bb3 Qd6 Bc1 a5 Rh4 Bf7 Kh8 Re8 Rg4 Re3 Rh4 Be6 Rg4 Kf2 f3 Rd3 Rga4 g7+ Kh7 Re3 f4 Rd3 Nge7 g8B+ Kh8 Bh7 Ng8 Nc8 Ra6 B7f5 Ra7 g6 Rc7 Na7 Rc8 Rd2 Rc7 Ra2 Rc8 Bb1 Rc7 Qg2 Rc8 Ra3 Rc7 Kf1 f2 Nf3 Ng1 Ne5 Rc8 Qf3 Rc7 Kg2 f1N Qfd3 Ng3 Qf1 Nf5 Kf2 Rc8 Kg2 f3+ Kf2 Nge2 Rg1 h1Q Rg3 Ng1 Rg2 Nfd4 Kg3 f2 Kh4 Nde2+ Kh5 Rc7 Rg3 Qd5 Qg2 f1N Qf3 Ne3 Qf1 Qd1 Kg5 Nge7 Kf6 N3f5 Kf7 Rc8 Ra6 Ng8 Rb6 Rd8 Qc7 Rd2 Qd6 Qc7+ Ke8 Rc2 Kf8 Qb8+
r7/QB1rRQ2/r2N1Nr1/2b2BnQ/1r1k1qb1/Bn6/nPPn1q2/3R3K w - - 0 1 legal: proof: h4 c5 e4 g5 d4 cxd4 f4 gxh4 a4 b5 axb5 f5 exf5 e5 Ra4 exf4 Ra6 Ne7 Ra1 Ng8 Kf2 Ke7 g4 Kf6 Kg2 Ke5 g5 h5 f6 d5 f7 a5 g6 f3+ Kh2 a4 b6 d3 b7 h3 g7 f2 Qe1+ Kd4 Qd2 h4 Qd1 d2 Qh5 d1Q Qe2 a3 Ra2 Qb6 Ra1 a2 Qe1 Nc6 b8Q Nb4 Nd2 Qg4 Rb1 a1N Ba6 Nf6 g8B Rh6 Qf1 Nb3 Qg2 Ne4 Qf4 Rg6 Qc7 Bc5 f8Q Ng5 Ne4 Na2 Qff7 Qf4+ Qg3 Bd7 Bh7 Bg4 Bb7 Kc4 Bg8 Nd4 Qf6 Bh5 Qf8 Qd2 Qg2 Qf6 Nf3 f1N+ Kg1 Qe2 Qcb8 Nb3+ Qf2 h2+ Kg2 Nb4 Rg1 h1R Nd4 Qe3 Ne6 d4 Bd2 d3 Qh6 Na2 Re1 Bd1 Qh7 Qfd4 Bb4 Rh3 Qh5 d2 Nc3 Rf3 Ba3 Rff6 Rh1 h3+ Kg1 Be2 Qa7 d1R Nb5 h2+ Kg2 Qde5 Nf8+ Re6 Qf5 Rd7 Nh7 Nfd2 Rd1 Q5d4 Rhe1 h1R Qf8 Rh4 Nf6 Re4 Kh1 Qf4 Qe7 Qdf2 Qe8 Rgg7 Bh7 Ra6 Bf5 Bg4 Qf8 Rg6 Nd6+ Kd4 Qf7 Ke5 Rf1 Rb4 Rfe1+ Kd4 Re8 Rba4 Re7 Rb4
4b3/1rr2NnB/RQ3R1Q/1qn4P/q4B1q/r1k4N/nb1nKP1N/2q2Q2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra6 fxe4 Ra5 Be6 Ra1 Bc8 d4 Kf7 h4 Kf6 d6 e5 b6 c5 b7 g5 h5 g3 d5 c4 d7 e3 d6 b3 Rh2 g4 Ba3 g2 Qc2 e2 Bb4 e4 Ra7 Ke5 Nh3 Kd4 Ba3 g1N Ra4 b2 Nd2 b1R+ Qc1 g3 Ra6 c3 Nf4 c2 Rh3 g2 Nf3+ Kc3 Qd1 c1N Ra4 Ne7 Rh1 Bg7 Ng6 Na2 Nh2 Nf5 Nf3 Qh4 d8Q Bd7 Rb4 Na6 b8Q Be8 d7 Nc5 Rb6 Rh7 Rf6 Rb7 Bc1 Ra3 Qbd6 Bh8 Qe6 Ng7 Nh2 Nf5 Qeb6 Ra8 Qb2+ Kc4 Re6 Nc3 Kd2 e3+ Kc2 Nf3 Qf6 g1Q d8N Rhc7 Nf4 Qgg4 Qh6 Be5 Nh3 Ng7 Bg2 e1Q Nf7 e2 Qb6 Qf1 Rf6 e1Q Be3 Nd2 Be4 Bd4 Bh7 Qee2 Rg1 Ra5 Rg3 Na2 Qdb1 Qd7 Bf4 Bb2 Ra3 Ra4 Qe1 Qe4+ Kd1 Qb5 Bg3 Qg1 Bf4 Qc2+ Ke2 Qcb3 Qd1 Kc3+ Ke3 Qe1+ Qe2 Qc1 Qf1 Rc4 Ra6 Ra4 Qg1 Ra3 Qf1 Q5a4 Ke2 Qbb5+
1bk3q1/6qn/3qrbnQ/1PNn1P1N/7Q/RRB2R1b/Kr5B/b2B1n2 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 f4 Kd7 d4 c5 Kd2 e5 Kc2 h5 Kb2 c4 g4 b3 d6 e3 g5 e4 d5 e2 g6 e1B g7 h3 Be3 h2 Ra4 c3+ Ka1 h4 Qf3 c2 Ra3 c1B Ra5 h3 Ba7 b2+ Ka2 e3 Qd1 e2 Ra4 Nf6 g8Q Nc6 Qh7+ Bg7 Bb8 Bh4 Qe1 Qg8 Bg2 Ra6 Qc2 Nh7 Qcd2 Ne5 Bf3 Bhf6 Nc3 b1N Ne4 Ng6 Qh4 e1Q Ra3 Qg3 Bd1 Ba1 Ne2 Bgf6 Rf1 h1Q Rf2 h2 Rf3 Qhg2 Nc5+ Kd8 d7 h1N Be5 Re6 Bc3 Q3h2 Qe3 Ng3 Qd2 Nf1 Ng3 Kc7 d8R Bcb2 d6+ Kb8 Bb4 Bbe5 d7 Bd6 Nh5 Nc3+ Kb3 Nd5 Bc3 Qg5 Ka2 Qh6 Re8 Qhg7 d8B Bd7 Rf8 Kc8 Rd3 Bb8 Bc7+ Re8 Rb3 Bh3 f5 Qe5 Rf3 Qd6 Rf7 Re1 Qh6 Re6 Re7 Q8f7 Ra3 Re8 Rb3 Qfg8 Ra3 Re1 Ree3 Re6 Rd3 Qc6 Bh2 Qd6 Ba4 Rb1 Bd1 Ng5 Bd4 Nh7 Rdb3 Bc3 Bde5 Ba1 Bc3 Rb2+
B2Qb3/1Q1PKNN1/2R2B1r/1nR1B3/1qr2qn1/P2N4/1qbnk3/bb5q w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 c5 Rh3 cxd4 Rh2 Nd7 Rh1 Nb8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 h5 f4 b5 g4 d3 a3 Kc4 g5 h3 g6 b3 g7 b2 f6 h4 d6 b4 f7 h2 f5 h3 f6 b3 Bf4 Nh6 g8N Qc7 Be2 Na6 Nf3 Bd7 Bg3 Rc8 Nd4 Ng4+ Kf4 e5+ Kg5 e4 Nh6 e3 Nc3 b1N Na2 b2 Nc1 Bg7 f8B Nd2 f7 b1B Bf3 e2 Be7 e1Q f8Q Be8 Nf7 Rh6 d7 Qee5+ Nf5 Qb2 Rf1 h1Q Be5 h2 Ba8 Qe4 B7f6 h1Q Qf3 Qc5 Qe7 Nc7 Qd8 Qcb4 Ra2 Qed4 Qb7 Nb5 Rd1 Bh8 Ng7 Kc3 Kf5 Rc4 Ke6 Kc2 Rg1 Qf4 Rg3 Kd1 Ra1 Nf2 Rg6 Ng4 Ra2 Qbd4 Rc2 Qdb2 Nb3 Ke1 Nc5 Ke2 Rc3 Nf1 Ke7 d2 Rg5 d1B Rc2+ Nd2 Rc3 Q4b3 Nd3 Bdc2 Rh5 Re4 Rc6 Rc4 Bc7 Qa4 Rhc5 Qab4 Bce5 Qbc1 Bh4 Rh5 Bb8 Ba4 Ne6 Ba1 Ng7 Bac2 Be5 Rh6 Bhf6 Qcb2
1nNQn3/r1R2q1R/2B3r1/2N1n1P1/2Qn1qb1/q4n1B/BnK1RP2/6kn w - - 0 1 legal: proof: h4 f5 g4 c5 a4 b5 d4 cxd4 e4 fxe4 Bh6 gxh6 axb5 h5 g5 Bh6 g6 Bg5 hxg5 h4 Ra6 h3 Ra1 h2 Kd2 a5 b4 d5 c4 Kd7 g7 Kd6 c5+ Ke5 b6 Kf4 c6 e5 c7 h5 b5 a4 b7 h4 b6 a3 Ne2+ Kf3 Qa4 h3 Qa7 a2 Kc1 e3 Kd1 e4 Nc1 e2+ Kc2 e1N+ Kb3 d3 Qa6 e3 Qa7 d4 Kb2 e2 Nc3 d2 Nb3 d1Q Ne4 d3 Ng3 d2 Qa5 Nd3+ Kc3 e1N Qa4 Ra7 Qb5 Qe7 Qb4 Rh6 Ne4 Ne5 Rc1 a1N Bb5 Kg2 Nd6 Qg4 Nc5 Qf4 Bc6+ N1f3 Qc4 Nb3 Kc2 Bg4 c8B Nf6 g8B d1N Re1 h1Q Re2 h2 Bf5 Qf8 Nc8 Ne8 Bfe6 Bh5 Bh3+ Kg1 Bge6 Q8f7 Bed5 Na6 b8R Rg6 b7 Bg4 Ra8 Qg2 b8Q h1N Qb6 Nb8 Qd8 Qgg3 Be6 Ra6 Ra7 Ra1 Rc7 Ra3 Ra1 Ra7 Ra5 Nb2 Rb5 Q7f6 Rbb7 Qf8 Rh7 Q4f7 Rc7 Qgf4 Ne4 Qb4 Nc5 Qa3 Qc3 Na5 Ba2 Nb3 Qc4 Nbd4+
n7/2B1Nb1Q/2bq1B2/3b1P1R/k1b1b1nq/1NbQrn1R/b2QP3/3N3K w - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 Na3 f5 Nf3 h5 Bh3 b5 Nb1 f4 Ng1 Ra6 Be3 Rf6 Bc1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 Kf1 g5 Kg2 d5 c4 Kd7 a4 Kc6 h4 b3 a5 b4 h5 g3 h6 g4 e6 d3 h7 b2 c5 Kb5 a6 f3+ Kf1 g2+ Kf2 g3+ Ke1 d4 a7 b3 a8N f2+ Kd2 f1B Ke1 Na6 c6 Nf6 c7 Ng4 e7 Bg7 e8Q+ Bd7 c8Q Nc7 Qe4 Bc6 Qf3 Re8 Nd2 b1B h8B b2 Rh2 Ba2 Qe3 b1B Nb6 Na8 Rh7 Qh4 Nh3 g1Q Qf3 g2+ Nf2 Qgh2 Qe3 g1N Qb7 Bfg2 Nb3 Bgd5 Kf1 d2 Rh5 d3 Nc8+ Ka4 Qf4+ Bd4 Bf6 Q2g3 Bb2 Nf3 Qh7 Bf7 Qd6 Re3 Ne7 Be5 Ba3 Bc3 Qd5 Qf4 Kg2 Bc2 Bc5 Qd6 Bb6 Bb1 Bc7 Bc2 Qb1 d1B Na5 d2 Qc1 Be4 Qd3 Bd7 Qb2 Bdb3 Rh1 d1B Qbd2 Bdc2 Rh3 Bbd5 Kh1 Bcb3 Nd1 Bbc4 Nb3 B7c6
q3b1q1/Q3Q2B/1rP3B1/2rr1b1r/rn2K1RR/8/2P2NRb/1BrrkN2 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 Rh2 g5 Rh1 gxh4 d4 Qg5 b4 Qg4 b6 Qg5 b5 Qd8 Ba3 Na6 Bb4 cxb4 Kf2 Qf6 Ke1 Nc5 dxc5 Qd8 Kd2 Ke7 Kd3 Ke6 e4 Ke5 g4 h5 g5 d5 g6 a5 b7 f5 b8R d4 g7 h3 b6 f3 b7 Kf4 e5 Kg3 e6 Kf2 e7 a4 e8B h2 Qc1 f4 Nc3 b3 Nce2 b2 Qb1 h4 Bg6 a3 Ke4 h3 Bf7 a2 Be6 d3 Nc3 d2 Nge2 Nf6+ Ke5 Bd6+ Kf5 Ra5 g8B Nd5 Bd7 Rh5+ Kg4 Qe8 Qd1 b1R Bg2 Rb6 Qc1 Nb4 Ng3 Qd8 Rb1 a1R Bh7 R1a4 Be6 Rf5 Ba2 d1B Re1 h1Q Re4 h2 Rd4 Qg1 c6 h1R Bf1 Be5 Bd3 Rc5 Rb3 Rh6 Bb1 Rd6 Ra8 Rdd5 b8Q Bd7 Qb7 Rh5+ Bdf5 Be2 Qa7 Bd3 Rc8 Qh8 Rg8 Qg2 Rg5 Qa8 Ra3 Be8 Nd1+ Kg1 Rc3 f2 Qe3 f3 Rcc4 Bf4 Qe4 f1R Qee7 f2 Rg8 Re1 Be4 f1R Nf2 Rc1 Bef5 Qh2 Kf3 Rfd1 Rg6 Bb8 Rh4 Qh3 Be4 Qe6 Rg5 Qg8 Beg6 Bf5 Rcf4 Bg4+ Ke4 Kg2 Ngh1 Kf1 Ng3+ Ke1 Nf1 Be6 Rg2 Bc8 Rfg4 Bh2 Qa5 Be6 Qaa7 Bf5+
1BK2n2/1B1rQ2n/4R1Pr/6bP/1rq1r1N1/1R6/r2kNNR1/1n1qqQ1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g3 cxd4 g4 h5 f3 hxg4 Bh6 g5 Ra6 g3 Ra1 g4 Bc1 g2 Bd3 g3 Qd2 Bb7 Qd1 Bd5 Be2 Be6 Bf1 Bg4 fxg4 Rh5 Ra3 Rh3 Ra1 Rh8 Kd2 Kf7 b4 Kg6 c4 Kg5 h4+ Kf4 h5 d5 b6 a5 b5 e5 b7 d3 Kc3+ e3 g5 d4+ Kb3 a4+ Kb2 e4 g6 d2 b6 e2 c5 Ke3 Ka3 e1R Kb4 d3 Kb5 a3 c6 a2 c7 Ra7 c8N Nd7 Kc6 Rh6 b8R Qh4 b7 Be7 Kc7 Nf8 Ne2 g1R Ba3 g2 Nb6 Bg5 Rh2 Rh1 Bd6 g1R Nbc3 Nf6 Bg2 N6h7 Kc8 Qf4 Rb1 a1R Rb3 R1a2 Nd7 Qf1 Qa1 d1N Ne5 Kd2 Ng4 e3 Bf3 R7a4 Rg2 Rb4 Bd5 Qf4 Bc6 Qc4 Ne4+ Kc2 Bf4 d2 Nef2 Nc3 Ra8 d1Q b8Q Kd2 Ra6 Nb1 Qbe5 Rgf1 Qe7 Rfg1 Bb8 Rgf1 Nd3 Rf7 Ndf2 Rg7 Qc7 Rd7 Bb7 Rh4 Re6 Reh1 Ng3 e2 Qf6 e1Q Ne2 Qb5 Qe7 Qd5 Qh2 Qd4 Qg1 Qf4 Qf1 Qf7 Nh2 Rhe4 Nhg4 Qg8 Re5 Qd5 Re6 Qc4+
8/2rqQ1r1/K4n2/4BNQq/RP5N/R1r1q1q1/1qbPRn2/1r1BNk1r w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Ra4 Be7 Ra5 g4 Ra1 Bg5 hxg5 fxg3 b4 Ke7 e4 Kd6 Ke2 Ke5 g6 Kf4 g7 c5 b6 h5 e5 f5 b7 a5 e6 g2 e7 Kg3 e8Q h4 Qda4 h3 Bb2 c3 Qe7 h2 Qb3 a4 Qg5 f4 Qe6 a3 Qh5 c2 Qhd5 c1R Kd3 Kf2 Nc3 a2 Kc4 f3 Kb5 g3 Qde4 c4 Qe8 Na6 b8R Ra7 Qd5 Nf6 g8N Rg7 Qd6 Nc5 Qde5 Nce4 Nh6 Bf5 Rb1 a1Q Qh5 Qd7+ Kb6 Bg6 Nce2 c3 Qd6 c2 Qg5 Rc8 Qe6 Rc7 Ra8 Re1 Bc3 c1R Qe7 Qb2 Be5 R1c3 Rba1 Rb1 R8a4 Ke1 R1a2 f2 Nf4 Bf5 Ba6 f1Q R2a3 Qf3 Ng6 Qh5 Be2 Kf2 Nf3 g1Q Ngh4 g2 Ka5 Qe1 Kb6 g1Q Ka6 Qg3 Bd1 Qe3 Re1 h1R Re2+ Kf1 Ne1 Bg6 Qc5 Nf2 Qe7 Be4 N6f5 Bc2
2nq2B1/1N1P2Q1/nN1B1rr1/1k2K1Q1/2r1rQ2/1qRP2br/N1R1q3/5rq1 w - - 0 1 illegal: No possible last move, all moves rejected
2B2kbr/1r2b2R/1q1q1P2/2QBbq1n/4PQ1N/3b3N/2r1R2q/Q2rBK2 w - - 0 1 legal: proof: d4 b5 h4 e5 g4 c5 a4 cxd4 axb5 g5 f4 gxh4 Nh3 f5 Ng1 Nc6 Rh3 Nce7 Rh2 exf4 Rh1 f3 Qd2 f4 Qd1 Nf5 gxf5 Qf6 Bd2 Qg5 Bc1 Qd8 e4 d5 b4 a5 c4 h5 b6 a4 b5 f2+ Ke2 a3 c5 f3+ Kd2 a2 c6 h3 b7 h4 b8Q h2 c7 h3 b6 d3 b7 d4 Qb3 Ra7 Be2 f1B Ke1 f2+ Kd1 d2 Qc2 Nf6 Qa8 Be6 b8Q Be7 c8B Nh5 f6 Bg8 Qd3 Kf8 Qc7 Rb7 Qc5 Qa5 Qb3 Qb6 Bc4 Bd3 Qb8 Bh7 Bd5 Bg8 Qg3 f1Q+ Qe1 Qf5 Qh4 Bc2+ Ke2 d1R Qf4 d3+ Kf2 d2 Qc3 Bd3 Ba3 Ba6 Bb4 Bd3 Qb2 Rc1 Bc3 d1Q Be1 Rc4 Nd2 Rc2 Rb1 a1B Qa2 Rc1 Ndf3 Be5 Nh4 Rc4 Rb2 Rc2+ Ne2 Qd2 Qa1 Qdb4 Kf1 Qa3 Rg1 h1Q Ra2 Qh2 Rg7 Qg3 Rb2 h2 Rh7 h1R+ Qg1 Rh2 Qc5 Rg2 Ra2 Qh2 Rb2 Rc1 Rc2 Rd1 Ra2 Bb1 Ng1 Rc2 Nh3 Qab4 Rb2 Qd6 Ra2 Qbb6 Rb2 Rc4 Rd2 Bd3+ Re2 Rc2
nBq5/N2b3r/nPQqqP1q/3n4/3Q4/1rrQ1RNk/6R1/n1BBK1r1 w - - 0 1 illegal: No possible last move
B1n2Nrk/q3r1R1/3b1pq1/5Kbr/b1N1R3/B1PBr2R/P6Q/4nQ1r w - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 a5 f5 axb4 f6 exf6 g4 Qa5 g5 Qd8 h4 Ke7 g6 Qb6 gxf7 Qd8 Kf2 g5 Ke1 g4 Bg5 Qa5 Bc1 Qg5 hxg5 Ra6 Nd2 Ra4 Nb1 Ra8 Kf2 d5 Kg3 h5 Kf4 b5 e4 b3 g6 g3 g7 g2 c3 b2 e5 b4 e6 h4 Nf3 g1B Bh3 d3 Ng5 d2 Kg4 b3 Ne4 d4 Ng3 d3 Qe2 d1R Be3 d2 Bh6 Nc6 Na3 b1R Nf1 b2 Rh2 Be3 Qb5 Bd7 Rg2 Re1 Nc2 Nb4 Nd4 d1Q+ Qe2 Bd2 Ne3 Ba4 Nc4 Nc2 Rg1 Ra5 Bg2 h3 Ba8 h2 Bf4 Rah5 Bd6+ Kd8 Rg2 Ne7 g8B Nc8 Bh7 Rg8+ Bg6 Rc1 Ba3 b1Q e7+ Kd7 e8R Qb7 Nd6 Qa7 Ne6 Bdh6 Rg1 Qd3 Nc4 Rcd1 Rg3 h1R Rh3 Rd2 Qg2 Rde2 Rd1 Bb4 f8Q Ree5 Rc1 R1e3 Rg1 Ne1 Qf1 Bf4 Qg7+ Be7 Bge4 Bh6 Qg5 Bd6 Bg6 Qe4+ Qgf4 Qd3 Qh2 Bf4 Rf8 Ke7 Rf7+ Ke8 Nf8 R5e4 Rgg3 Re7 Rf3 Bg5 Rf4 Qd2 Bb1 Qc2 Rh7 Qg6 Re4 Rg7 Bd3 Kf7 Bb2 Kg8 Ba3 Qh6 Kf5 Rg6 Rg7+ Kh8 Rf7 Rg8 Rg7 Qg6+
4rqNn/2nPR3/b2N2rn/3q4/RB1pBP2/BQ5n/Q2q1n1k/1bQ1K3 w - - 0 1 legal: proof: h4 c5 d4 g5 c4 gxh4 e4 f5 a4 b5 axb5 fxe4 Qc2 Bh6 Qd1 cxd4 c5 d5 Rh2 Bf4 Rh1 Bd6 cxd6 Be6 Ra2 Bf5 Ra1 Bc8 b4 Kf7 g4 Ke6 f4 a5 d7 h5 g5 Kf5 g6 e5 g7 e3 b6 d3 b5 e4 b7 d2+ Ke2 Kg4 b6 Kg3 Ra4 d4 Nh3 Nh6 Ra3 a4 Qb3 d1N Bb2 Ra6 Bc3 Re8 Rg1+ Kh2 g8Q Nf2 Ke1 e2 Ra1 a3 Qa4 a2 Kd2 e1Q+ Kc2 e3 Rg3 e2 Ng5 h3 Nf7 h4 Re3 Qd2+ Kb3 e1N Qa3 Qg5 Qc1 Nf3 Bd3 Ne5 Na3 Ng6 Re7 Nh8 Nc4 Qc5 Bb4 Qd5 Rb1 a1Q Be4 Qaa5 Ra1 Qac5 Ra4 Qcd6 Ne5 Qf6 Nc6 Qf8 Qf7 Ra5 Qg8 Na6 b8B Nc7 b7 Ra6 Ba7 Rb6 b8Q Ba6 Qf7 Rb7 Bc5 Rb6 Na5 Rg6 Nc6 Kg3 Ba3 h2 Bcb4 h1B Qb6 h3 Qa5 Qb5 Nd6 h2 Qfc4 Nh3 Qg8 Qe1 Kc2 Qd5 Qf7 Qe3 Kd1 Bg2 Qb5 h1N Qb8 Qd3+ Ke1 N1f2 Qb5 Kh2 Qe6 Qg5 Qa2 Qd5 Qbc4 Qc2 Qcb3 Qb2 Rf7 Bgf1 Ne7 Bfd3 Ng8 Bb1 Re7 Qd2+
2Qbqb2/Q2b2b1/1RN5/Q1bP2p1/1n1N2B1/1rb1rR2/2Pb1B2/R3nK1k w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 a3 f5 Qe2 h5 bxc5 hxg4 a4 b5 axb5 f4 Qe3 fxe3 f4 Kd7 h4 Ke6 d4 Kf5 b6 g5 b7 a5 c6 e5 h5 a4 c7 a3 d5 g3 h6 Kg4 h7 a2 f5 g2 f6 Kg3 f7 e2 Ba3 Nh6 Bb2 Ng4 Nh3 g1B Bg2 Bd6 f8R Nh2 Bf3 Qe8 Nf4 Na6 b8Q Bgc5 Qb4 Rb8 Rf7 Bf8 Kd2 e1B+ Ke2 e3 Nd2 e4 Nc4 Bd2 Rac1 a1B Qb6 Ba5 Bg4 Nf3 Rhf1 Kh2 Qa7 Rb3 Ne5 Nb4 Rf6 Bf5 c8Q Bd8 Bd4 Bc3 Nh3 Bb2 Ng1 Kh1 Ra1 Be6 Ra6 Bc3 Rc1 Ba1 Kf1 e2+ Kf2 e1B+ Kf1 e3 Nc6 Bd2 Ne2 Bb2 Rca1 Bf5 Be5 Be6 Bg3 Be5 Rf4 Bdc3 Ned4 e2+ Kf2+ e1B+ Kf1 Bed2 Bf2 Ne1 Rf7 Bfd6 Rf5 Rf8 Rf6 Rf7 Rf3 Rc7 Qab8 Re7 Rb6 Bf5 Qa8 Re6 Qa5 Bf8 h8Q+ Qh5 Qg8 Beg7 Qf7 Re3 Qe7 Qe8 Qea7 Bd7
qb4bN/k1rR2Nb/n3B1nR/2r1nBKp/6QB/q4P1P/Q5q1/2N3b1 w - - 0 1 legal: proof: e4 c5 g4 d5 a4 dxe4 b4 f5 bxc5 fxg4 Bc4 b5 axb5 a6 Bf1 axb5 Ke2 Kd7 Ke3 Kc7 Kf4 Kb7 c4 h5 d4 e5+ Ke3 g5 f3 g3 h3 g4 d5 b4 d6 b3 d7 g2 Ra5 b2 Nc3 b1B Nd5 g3 Ne2 Rh7 Qd2 Ne7 Nf6 Ng6 Ra6 Bd6 Qa2 Ra7 Rc6 Na6 Ne8 Bb8 Ng7 Qa5 Rh2 g1B+ Rf2 g2 d8N+ Ka8 Nf7 Be6 Nh8 Bg8 Ba3 Qb4 Nc1 Rc7 Bd3 Ka7 Re6 Qb7 c6 Qa8 c5 Rc8 c7 Bc2 Ke2 e3 c6 e4 Be7 Bb1 Bh4 Bc2 Ke1 e2 Kd2 e1N Ke3 Bb1 Bc4 Nd3 Rf6 Nde5 Be6 Ne7 Kf4 e3 Kg5 e2 Bf5 e1Q Rh6 Qc3 Rd2 N7g6 Rd8 Qa3 Rd7 Rf8 Be6 Rf4 Bf5 Rc4 Be6 Rc5 c8B+ Kb6 c7 Ka7 Bf5 Be4 Rd8 Bb1 Bce6 Bc2 c8Q Bb1 Ne8 Rhc7 Ng7 Bh2 Bg4 g1Q Bc4 Nf8 Qf5 Bc2 Rd7 Qg2 Be6 Bg1 Qf4 Bf5 Qg3 Bfh7 Bgf5 Nfg6 Qg4 Qb7 Kf6 Qe4 Kg5 Qa8
qn3n2/NQ1QN1n1/1KRB1Q2/5P2/2q1kr2/b1r2Nrn/bB1Pp3/1R4q1 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b4 a6 b6 Bd7 b7 Nf6 b5 Ng8 b6 Bc8 Bb5+ axb5 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 h5 f4 e5+ d6 h3 g3 h2 Na3 h4 Bb2 e3 g4+ Ke4 g5 b4 f5 e2 g6 e1Q g7 b3 Bc1 b2 Qh5 b1R Qg5 h3 Qe7 Rh4 d7 Rf4 Ra2 Nf6 g8Q Nh7 Qh8 Rb3 Nc2 Rg3 Qf6 Raa3 Qg5 Rac3+ Kb5 c5 Ra7 c4 Qef6 Ba3 Ne3 Nf8 Nf3 Qg1 Ka5 Qe8 d8Q Be6 Qgh6 Nbd7 Qh7 Rg6 b8B Qf1 b7 Rb3 Qfh4 c3 Qhf6 c2 Ra8 Kd3 Ng2 e4 Qhh4 e3 Bd6 e2 b8N Rg3 Qb2 Ke4 Nd4 Rbf3 Nb5 Ba2 Qb1 Re3 Rg1 h1N Nc6 Nf2 Ra6 Rb3 Qc7 Qa8 Ne7 Nb8 Ne1 Qg2 Rf1 Qg1 Na7 Rbe3 Qbb6 Rd3 Bb2 c1Q Qb4+ Qc4 Nf3 Rc3 Qd7 h2 Ne1 h1N Rc6 Rg2 Nf3 Ng3 Qbb7 Nh3 Qf6 Nh5 Ra1 Ng7 Rb1 Qd1 Kb6 Rg3 Qa6 Qc1 Qab7 Qg1+
Bn2qQ2/B1rq4/1Nr1N3/P4b1n/KQn2B2/P1p3R1/4k2N/2q1qbbR w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 b4 e5 bxa5 exf4 h4 gxh4 e3 fxe3 g4 Kd7 d4 Kd6 g5 f5 g6 b5 a3 c5 g7 h5 Bd2 e2 Nc3 c4 Nf3 b4 Be3 f4 Kd2 e1Q+ Kc2 b3+ Kb2 h3 Rc1 h2 Qd2 h4 Bg1 h3 Nb1 c3+ Ka1 b2+ Ka2 Rh7 Kb3 Qee8 Bg2 Nf6 g8Q Ra6 Qe1 Be7 Qe4 Nh5 Qf8 Qdd7 Nbd2 Rc6 Ka4 b1N Be3 Rg7 Rhg1 h1Q Nh2 f3 Nc4+ Kc7 Qg4 f2 Nb6 f1B d6+ Kb7 d5 Ka6 Bf2 Nd2 Qb4 Nc4 Be4 Bg5 Rg3 Be3 Rd1 Bc5 Be3 Qg1 Bf4 Qf2 Bf3 Qfe1 Rc1 Bg1 Rb1 Qde6 d7 Rh7 d8B Rhc7 d6 Q6d7 Bf6 Qc1 Bd4 Qce1 Ng4 h2 Bg2 h1Q Nh2 Qc1 Bd5 Qhe4 Bc5 Qee1 Bf3 Qde6 d7 Q6e7 d8N Bf5 Bf2 Q7d7 Ne6 Bg2 Ng5 Qce3 Rb3 Q1e2 Qg7 Nd6 Nf7 Rc4+ Bc6 Q2d2 Nf1 Bh2 Rb1 Qb2 Re1 Qbc1 Ng5 Rc5 Nc4 Qed2 Re2 Qde1 Ne6 Bg1 B2e3 Bgh3 Rh2 Bg2 Rh1 Bgh3 Nh2 Bf1 Nd2 Rc4 Qf8 Rc5 Kb3 Rc4 Ba8 R4c6 Qe4 Kb5 Ba7 B5h3 Nc4 Bg4 Nb6 Bf5 Ng7 Kc5 Qee7 Kd4 Ka4 Nc4 Qc5+ Ke4 Qb4 Kd4 Ne6+ Ke4 Rg6 Kd3 Rg3+ Ke2
2B1n1rq/2rb4/2b1BNPk/1R3b2/1qKBrN2/1pnQRn2/4PQ2/Rr6 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 d4 Kf8 Kd2 Kg7 Kd3 c5 a4 h5 g6 b5 a5 f5 a6 f4 a7 c4+ Kc2 h4 d6 h3 d7 b3+ Kc3 h2 d5 f3 d6 b2 Ra3 f2 Ra6 b4+ Kd4 c3 Nh3 g2 Ra5 g1R Bg2 f1B Qd2 g3 Qf4 b3 Qf3 c2 Ra6 Rh4+ Bf4 c1R Ra1 Rc7 Qf2 Nc6+ Kc4 Nf6 Nc3 b1N Bd5 Ne8 Ne4 Nc3 Be5+ Kh6 Nf4 Bh3 Be6 g2 Bd4 Rb1 Nf6 g1Q Ra5 Qf1 Rb5 Qe1 Rg1 Rb8 a8B h1B Bb7 Bf5 Rg3 Bhe4 Re3 Bg2 Nh7 Qf6 d8Q Qh8 Nf6 Bd7 Bc8 Ne5+ Kb4 Bdc6 d7 Nf3 Kc4 Rg4 Qe7 Rh4 d8R Bgh3 Rdd5 Qd2 Qd6 Ra8 Ra5 Rb8 Ra1 Rg4 Nd3 Re4 Rb5 Bhg4 Bf7 Bfd7 Nf4 Bgf5 Be6 Ng7 Bb7 Rg8 Bc8 Ne8 Qb4 Na4 Qc3 Qe1 Qd3 Qa5 Qc2 Nc3 Qd3 Qb4+
q5QN/1nN2b1B/1qk1bP2/2rRB1Q1/2qqr1n1/8/2P1pR1r/1R2BnK1 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 b4 a5 h4 gxh4 Nh3 a4 Ng1 Bh6 Bd3 Bf4 Be2 Bc7 Bf1 Ba5 bxa5 Ra6 Ke2 Ra7 Ke1 Ra8 g4 h5 f4 d5 Kf2 Kd7 g5 e5 a6 e3+ Kg2 a3 b6 e2 b7 e1R f5 e4 f6 d3 g6 d4 a7 e3 g7 a2 Nh3 d2 Bd3 Kc6 Bb2 Qb6 Bc4 d3 Bd4 Be6 Ng1 h3+ Kh2 h4 Qg4 d1N Nf3 d2 Ng5 Nd7 b8B Nc5 Qe2 Nb7 Rg1 Nh6 g8Q Ng4+ Kh1 h2 Bg3 Rc8 Rf1 Rh7 Kg2 h1B+ Kg1 h3 a8R Bhd5 Na3 Rh5 Rc1 a1Q Qg2 Qa2 Bd3 Qc4 Rb1 Bf7 Ra5 h2+ Kh1 Rh4 Nb5 e2 Nc7 Nde3 Bb2 d1Q Bh7 Qdd4 Bc3 Rc1 Bge1 Rd1 Rf2 Nf1 Bb2 Re8 Ba1 Re4 Qg3 Bde6 Rd5 Rd3 Bb2 Rc3 Qe3 Bg6 Nf7 Rh3 Nh8 Bgf7 Qd2 Rh5 Kg2 Rch3 Bc3 Rhe5 Qdg5 Rh4 Rd8 Rc5 Rd5 Rh5 Bcd2 Rh3 Bf4 Rh5 Be5 Rh4 Kf3 h1Q+ Rg2 Na5 Rd6+ Kb7 Bf4 Ree5 Rd8 Rh2 Rd6 Qa1 Rdd1 Qg1 Rd5 Re4 Be5 Qgd4 Rf2 Kc6 Ng6 Nb7 Nh8 Rh5 Kg2 Qa8 Kg1 Rh2
2N5/1q5n/RQprqRbn/2B2P2/3QNk2/5b1B/5nPq/rb1NbK1Q w - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 b5 axb5 g5 Ra2 gxh4 Ra5 Qd5 Ra1 Qd8 f4 e5 e4 f5 Rh3 Qd5 Rh2 exf4 Rh1 f3 Bd3 f4 Bf1 Qf5 exf5 Bb4 Nc3 Bd6 Nb1 Bf8 d4 Ke7 b4 Kf6 b6 Kg5 b7 a5 d5 h5 b5 c6 b6 c3 d6 f2+ Ke2 a4 d7 a3 d8N h3 Nd2 c2 Bb2 c1Q Ra2 h4 Qa4 f3+ Kd3 h2 Qc4 h3 Nb1 Qe3+ Kc2 Nd7 Kd1 Rh6 b8Q Rd6+ Qd4 Nh6 b7 Qe6 Ba1 Nf6 Nd2 Bd7 Nb3 Be8 Be2 f1B Ke1 Nh7 Nc5 Bg6 Ne4+ Kf4 Nf7 Ra5 Bd1 Be2 Bc3 Bd3 Bb4 Bb1 Bc5 f2+ Kf1 Ra7 Ra1 a2 Bg4 Be7 Qbh8 Bh4 b8Q Ra4 Qb6 Ra5 Ke2 f1B+ Kd1 Bfd3 Kd2 Bdc2 Ke2 Be1 Kf1 Ra6 Ke2 Bd1+ Kf1 Rd8 Nfd6 Bf3 Nc8 Rd6 Qhd8 Ra7 Qh4 Bc2 Rd1 a1Q Rc1 Qaa2 Ra1 Qab3 Ra6 Bb1 Qe3+ Ke5 Ne2 Qb5 Qg1 Qb4 N2c3 Kf4 Qd4 Qbb3 Qa5 Qb7 Nd1 Ra8 Qb6 Ra7 Rg1 h1N Qh5 h2 Bh3 Nf2 Rh1 Ra8 Bg4 Ng8 Ra3 Be8 Ra2 Ra5 Qh3 Rb5 Ra6 Ra5 Rg1 h1Q Qh5 Qh4 Rh1 Ra1 Rh3 Qhf6 Rg3 Qfe7 Qh1 Qh4 Rh3 Qg3 Rh6 Qh2 Rf6 Nh6 Bh3 Bg6
1nQ1K3/4nr2/3N1n2/Q1rN3b/NB4R1/1b3pP1/1PR1R1nn/kBq1rr2 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Na3 fxg3 Nf3 g5 Nb1 g2 Ra5 g1N Ra2 Bb7 Ra1 Bc8 Nbd2 g4 Rb1 g3 Ra1 g2 Nb1 Ba3 Nh4 Bd6 Nf3 Bg3+ hxg3 Ba6 Rh2 Bb7 Rh1 Bc8 Kf2 Ke7 c4 Ke6 e4 f5 c5 h5 e5 Kd5 b6 a5 c6 h4 e6 f4 e7 a4 e8R a3 b7 a2 c7 h3 Be3 d3 Bd4 Kc4 Re6 d5 Bf6 h2 Qe1 Kb3 Qd2 d4 Ra6 Ne7 Be5 Be6 c8Q Rh5 Bf6 Ra7 Qa5 d2 Nc3 d1B Bd3 Rc5 Nd5 Qc7 Ne5 Bh5 Bb1 d3 Nf7 d2 Nd6 Nf3 Bc3 g1R Rc6 Re1 Bb4 d1N+ Kg2 Bef7 Kh3 Ne3 Rg1 h1N Rg2 Rf1 Re2 Nh2 Kh4 f3 Kg5 Ng2 Kf6 Nf2 Kg7 Nfg4 Kf8 Rcc1 Rc4 Nf6 Rg4 Qc4 Rc2 Qf4 Re2 Rc5 Rc2 Qc1 Re2 Nbc6 b8N Bg8 Nd7 Nb8 N7b6 Rb7 Bf5 Rbc7 Rb1 a1R Na4 Ka2 Bc2 Qf4 Rd1 Qc1 Rdd2 Rb1 Bd3 Ka1 Rc2 Re1 Ne3 Bb3 Nd5 Rf1 Bf5 Qd2 Bh7 Rbe1 Bf5 Qc1 Bg6 Ne4 Ke8 Nf6+ Kd8 Rc4 Rcd2 Neg8 Bb1 Rf7 Rc2 Rcc7 Rf4 Ne7 Rg4 Nfd7 Ke8 Rc6 Qa8 Rc5 Qa5 Nf6+
4kb2/4N1B1/1rbRR2B/Br1R3q/Qb4p1/3bN2n/KP1nPQ1r/2b4r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 d4 a5 Kd2 f5 Kc2 g5 Kb3 c5 h4 g4 b6 a4+ Ka3 c4+ d6 f4 h5 c3 b7 f3 h6 c2 d5 f2 h7 f1B Nd2 Ne7 Ra2 Nbc6 b8B Bf5 Rh2 Ne5 Bc7 Ra5 Rh5 Nf3 Nc4 Nd2 Ne3 Bd3 Nh3 g1R Nf4 g2 Ng6 Rb5 Ba5 Rh1 Re5 g1B Re6 Bg2 d7+ Kf7 d6 Bc6 Qe1 Qe8 d8R Nd5 Ne7 Nf4 d7 Nh3 Rd6 Bh2 Qf2+ Bf4 Ra1 Rb6 Ka2 a3 Re6 Rh2 Rb1 Rg8 h8Q Rg5 Qd4 Rd5 Qa4 Rdb5 Qg3 Bd6 Qf2+ Nf3 Bcd2 Bb4 Rd1 c1B Bc3 Rg2 Bg7 Rh2 Kb3 a2 Bh6 Bde4 Rd5 a1R Bg7 Rb1 Ka2 Bd3 Bh6 Bcd2 Rdd6 Rbh1 Rd5 Bc5 Bc3 Bc1 Bcg7 Bd6 Rc8 Bb4 d8B Rb8 Ba5 R8b6 Bf4 Nd2 Rcd8 Qd7 Rdd6 Qc8 R8d7 Ke8 Bfh6 Qb8 Rd5 Qe5 R7d6 Qh5
1n3q1r/k1KbPbn1/4Rr2/p4P1B/1RB5/N1b2N1r/1N1Q2b1/2bR1Q1r w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 e5 d4 f6 Bf4 exd4 e5 Ne7 e6 Ng8 Be5 fxe5 Kd2 a5 Kd3 h5 Kc4 c5 b4 e4 f4 e3 g4 d3 f5 d2 d6 h3 Kd5 c4 d7+ Ke7 b6 e2 g5 e1R g6 h4 g7 h2 b7 c3 b5 h3 b6 c2 Bc4 c1B Nf3 Ra6 Na3 Re3 Qf1 d1B Rb1 Ba4 Rb4 Nf6+ Kc5 Bc6 g8B Bd5 Bf7 Bg7 Bh5 Qf8 d8N Ne8 Nf7 Bf6 Nd6 Kd8 e7+ Kd7 Rg1 h1B Rg6 Bc3 Re6 h2 Rb1 B1b2 Rd1 Bg2 Kb5 h1R Kc5 Nc6 b8Q Bc1 b7 Ng7 Qa8 Kc7 b8R Rd3 Rb4 Bd7 Qe8 Nb8 Qg6 Rg1 Qg5 Rh1 Qd2 Rb6 Bb5 Re3 Ndc4 Kb7 Nb2 Ka7 Bc4 Ra6 Rg6 Bf7 Re6 Bc6 Kd6 Bd7+ Kc7 Rd3 Nd4 Rdh3 Nf3 Rd6 Re5 Rdh6 Re6 Rf6
5n2/1RP4N/kq1bBKnp/4P3/NnN5/nq1Bn1R1/1r2n2b/3BQrQ1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Be3 g3 Kd2 Qb6 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Qd8 Kd3 d5 e4 Kd7 c4 Kc7 b4 Kb7 g6 a5 c5 f5 g7 a4 g5 a3 b6 h6 g6 a2 c6+ Ka6 b7 f3 Qd2 f4 Bh3 f1N Qc2 f2 Ne2 f3 Nd2 Ne7 g8B Ng3 g7 f1N Qd1 f2 Rb1 a1B Qe1 Nd7 b8Q Qb6 c7 Ne3 Bh7 f1N g8B Nc4 Bhe6 Nfe3 Rh3 Nc2 Nc3 N4a3 Na4 Ne2 Nc4 Ng6 Rg3 Bd6 e5 Ndf8 Qd8 Rb8 Qg5 Bc3 Qe3 Bd2 Q3g1 Bf4 Bgf7 Rg8 Bg4 Rg7 Bfe6 Rf7 b5+ Kb7 Rh3 Bh2 Rg3 Rf1 Rb3 Qa5 b6 Ka6 b7 Nb4+ Kd2 d3 Ke3 d4+ Ke4 d2 Bf3 d1N Kf5 d3 Kf6 d2 Rb2 Ngf4 Bd3 Ne3 Bfg4 d1Q Rb1 Rd8 b8N+ Kb5 Nd7 Qb6 Rb2 Rb8 Rb3 Ka6 Rb2 N8g6 Nf8 Qb3 Nh7 Nf8 Bh5 N4g6+ Bf3 Nef4 Bd1 Ne2+ Kg7 Qc3 Bef5 Na2 Bd7 Qc6 Be6 Rb3 Rc2 Qb4 Rc3 Rb2 Rb3 Qc3 Rb7 Nb4 Qd2 Qb3 Qe1 Nef4 Kf7 Qb6 Kf6 Ne2+
R2B4/nr2bnqq/5PP1/1q1r2nN/1rB2Q2/1R2p2Q/R2N2n1/2Bkn2K w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 h4 gxh4 b3 a5 b6 a4 Nd2 a3 Nb1 Ba6 Qg4 Bb5 Qd1 Ba4 bxa4 Qc8 Kd2 Qc7 Ke1 Qd8 g4 Kf7 c4 Ke6 f4 h5 Kf2 d5 Kg2 h3+ Kh2 d3 c5 e3 a5 e2 g5 Kf5 g6 Ke4 f5 e1N c6 e5 c7 d4 c8R a2 b7 d2 a6 Ke3 a7 h4 Qh5 e4 Be2 d3 Ba3 d1R Bg4 d2 Rc5 Qd7 Ra5 Rh7 Ne2 Nc6 b8B Nh6 Nbc3 Nf7 Bg3 Rb8 a8Q Rb4 Ng1 Na7 Ra6 Qb5 Nb1 Be7 Qf8 Rg7 Nf3 Ke2 Bc1 Rh7 Rg1 Rg7 Kh1 h2 Bc7 Rh7 Na3 Rg7 Rb1 a1Q Nc2 Rh7 Qfh6 Qg7 f6 Rh8 Bb6 Rb8 Qf5 Rb7 Rb3 Qa4 Rg3 Qd7 Qff4 Nb5 Ra8 Na7 Be6 Qb5 Bc4+ Nd3+ Kg2 h1N Qg4 h3+ Kh2 Nf2 Bd5 Ne1 Qhf4 Bf8 Rg2 Be7 Kg3 h2 Bd8 h1Q Ne3 Qhh7 Nf5 Kf1 Qh5 Nh3 Kh2 Nhg5 Qhh4 Rb6 Kh1 Rb7 Rg4 Ke2 Ng3+ Kf2 Nh5+ Ke2 Ba3 Rb1 Rg3 d1N Qh3 Ne3 Rg4 Rd1 Bc4+ Rd3 Rg2+ Kd1 Ra2 Rd5 Nd2 N3g2 Bc1 e3
1r3q2/1BKNk1nR/r2np1r1/1r4P1/2r2q2/Q1RNB1n1/1qP3QN/3b2R1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g6 axb5 Bh6 d4 cxd4 g5 fxe4 f4 Bg7 f5 gxf5 g6 f4 Ne2 Bh6 Ng1 Bg5 hxg5 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 d5 b4 h5 b6 a5 g7 f3 b7 f2 b5 d3 Ke3 a4 Kd4 h4 Kc5 e3 b6 a3 Nc3 d4 Ne4 d2 Rh3 d3 Bg2 f1Q Qe2 d1R Kb5 d2 Ra2 Nd7 Kc6 Nh6 g8R+ Nf8 b8N Ra6 Nc5 Qf4 Qe1 e2 Ne4 Bg4 Nd7 Nf7 Qf2 e1R Bb2 Nd6 Qf1 Rb1 Nf2 d1R Ba1 Rb5 Rd3 h3 Bd4 h2 Nf3 h1N Nh2 Ng3 Rg7 Ne6 Rc3 Re4 Rh7 Ng7 Ra1 a2 Nd3 e6 Bc5 Rdb1 Be3 Rg8 Bh1 R1b4 Qg2 Ke7 Rg1 Qdf8 Kc7 a1Q b7 Qb2 b8Q Bd1 Qa7 Rb8 Qc5 R4b5 Qa3 Rh8 Rh5 Rh6 Rh3 Rg6 Rh7 Ne2 Qf1 Rea4 Bb7 Ng3 Qg2 Rc4+
Q3r1n1/2Kq1qPB/3R4/Q3nQ1p/1B1B2P1/qNR1q1r1/3q2nk/1Nb4r w - - 0 1 illegal: No possible last move, all moves rejected
QQ1R2Rq/1r2P2r/N1pB1r2/1r1B4/2n1qB1N/4b3/P4k1b/b1NK2qr w - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Ba3 f5 Bb2 g5 Bc1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Bg2 Nc5 Bh3 Ne4 Bf1 Ng5 hxg5 Kf7 Ba3 Ke7 Bc1 Ke8 d4 Ke7 e4 Kd6 g6 b5 e5+ Kd5 f6 Ke4 g7 h5 e6 c3 d5 b3 d6 f2+ Ke2 b4 f7 c2 e7 b2 d7 b3 Be3 c1B Rh3 g3 Rh2 c6 Qd6 h4 Qc7 g2 Qb8 f3+ Kd1 h3 Bf4 Ra5 Bd2 Rb5 Qg3 Rh7 Qb8 Nh6 g8N Bg7 f8B Nf5 Bc4 f1Q+ Be1 Ke3 Qa8 f2 Nh6 Nd6 Na3 b1Q Ne2 g1B Rg2 b2 Bd5 h2 Nf5+ Kd3 Qb8 h1R Nc2 Nc4 Nh4 Bh2 Nb4+ Ke3 Rg6 Qg1 Na6 f1R Rg2 Bd4 Rg8 Qe4 Bh6+ Kd3 Bd2 Rf6 Bf4 b1R Bd6 Qe8 d8Q R1b4 Qa8 Bce3 Qdb8 Rb7 Rb1 Ba1 Rb2 R4b5 Nc1+ Kd4 Rbg2 Qf8 Rh8 Qg7 Rd8 Qh8 Nb3+ Kd3 Rgg8 Ba7 Nc1+ Ke3 Ng6 Kf3 Bf4 Kg2 Nh4+ Kf1 Bb4 Be3 Bbd6 Kf2+
4N3/1qbQQ3/5BPN/1p2b1K1/2P2RbQ/bR2q1r1/1n1b1Br1/2R1bk1b w - - 0 1 legal: proof: e4 a5 g4 f5 b4 fxg4 bxa5 d5 Qf3 dxe4 Qd1 c6 h3 g5 Rh2 g3 Bd3 Nd7 Bb5 cxb5 Rh1 Ne5 h4 g4 Nc3 Nf7 Nb1 Ng5 hxg5 Qd6 Nc3 Qd5 Nb1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 c4 Kd4 a4 Kd3 a6 h5 g6 h4 a5 b4 a7 h3 f3 b3 a6 b2 Nc3 b1Q Ra2 h2 Nd5 g2 Nc3 g3 Qe1 e3 Nb5 e2 Kg5 Nh6 f4 Bg4 f5 e5+ f6 e4 Nd6 e3 Ne8 Qdb6 f7 Nf5 Nh3 g1B Rb2 g2 Qh4 e1B Rb3+ Ke2 d4 Kf1 d5 e2 d6 Ne3 d7 Bd2 d8B e1B Nf2 Ba3 f8R Nd1+ Rf4 Qe3 Bf6 b5 Bcb2 Qbe4 Bbd4 Nb2 Bc5 Rd8 a8Q Rd3 a7 Qb7 Qc8 Rc3 a8Q Rc2 Qg3 Rh3 Qh4 Rg3 Qd7 Qbf3 Bb6 Ke2 Qdh7 Qe5+ Kh6 Bdb4 Rd3 Be6 Rc3 Rg5 Nh3 Bd4 Qg3 g1B Qd5 Bef2 Qdd7 Qb7 Qhe7 Ba5 Ba7 Bc7 Qg2 Rg3 Ng5 Bg4 Qh3 Bfe3 Rb3 Bgf2 Ra1 h1B Rc1 Be1 Qh4 Qee4 Bb6 Bde5 Nf7 Qf3 Ba7 Kf1 Kg5 Rcg2 Nh6 Bd2 Bf2 Qe3
1kr4n/N2p3K/r3nPQ1/rBn4P/R2b3Q/1nBn2N1/n1b1R2B/1n3N2 w - - 0 1 legal: proof: d4 b5 h4 f5 g4 c5 a4 cxd4 axb5 h5 e4 fxe4 Ra6 g5 Ra5 Qc7 Ra1 Qc5 Rh3 gxh4 Rh1 h3 Kd2 h4 Ke1 Qh5 gxh5 Bb7 Bg5 Ba6 Bc1 Bc8 Kd2 Kd8 b4 Kc7 f4 e5 c4 a5 c5 a4 c6 h2 f5 h3 f6 a3 Qe1 e3+ Kd3 e2 Ke4 d3 Kf5 a2 Kg6 e4 Bh6 e3 Bg7 d2 Bg2 d1N Qh4 e1N Ne2 Bc5 Qd4 Nf3 Qb2 Nd2 Bf8 Na6 b6+ Kb8 b7 Bd4 b5 Nh6 Qc3 Nc5 Qb4 Ra5 Be4 Ne6 Re1 h1N Ng3 h2 Bd3 Nf7 Re2 Nhf2 Be7 Rd8 Kh7 h1R Bf8 Nh8 c7+ Ka7 b8N Bb7 c8Q Nfe4 Qc2 Rc8 b6+ Ka8 Qba4 Ndc3 Bb4 N4c5 Bb5 Re1 Qg6 Be4 Nc6 Bc2 Na7 Kb8 b7 Rf1 Na3 Ndb1 Nc4 Rf5 Nd2 Ra6 Ndf1 Rd5 Rg2 e2 Ba5 e1N Re2 Ned3 Qc4 Be3 Qh4 Bd4 Rh2 Ne2 Bc3 Nec1 Re2 Nd2 Rb1 a1N Rb4 Na2 Rc4 Nab3 Ra4 Kc7 b8B+ Kb7 Ne4 Nb1 Bh2 Ka8 Neg3 Kb8 Qhg5 Rdd6 Qg4 Ra5 Qh4 Rda6
1q1nB1Q1/1q1qqB1r/3n2n1/K3nr2/b3P1Pk/3p1Q1N/N3Q2q/2BR2R1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Na3 fxg3 Nf3 g5 Nb1 g2 Ra5 g1N Ra2 Bb7 Ra1 Bc8 Nbd2 g4 Rb1 g3 Ra1 g2 Nb1 Ba3 Nh4 Bd6 Nf3 Bg3+ hxg3 Ba6 Rh2 Bb7 Rh1 Bc8 Kd2 Ke7 b4 Kf6 c4 d5 e3 h5 g4 a5 b6 d3 Kc3 a4 b7 h4 c5 d4+ Kc4 d2 Kb5 h3 c6 a3 c7 a2 Qe1 d1Q Rh2 Ne7 Na3 Rh7 Ng5 Nf3 Qc3 g1Q Qb2 Ra5+ Kb6 Ne5 b5 Nbc6 b8Q N7g6 Rg2 h2 Be2 h1Q Bf1 Qgh2 Rg3 Bd7 Qb7 Qe7 c8B Nd8 Qe2 d3 Nh3 Qa4 Rg1 Qaf4 Rb1 a1Q Nc2 Qaa4 Nb4 Qd5 Na2 Be8 Nf2 Kg5 Nh3+ Kh4 Bg2 f5 Bd7 Qab3 Be6 Qdd7 Qbf3 Qe4 Bf7 f4 Bb2 Qed5 Rbd1 Qa8 Bc1 Qb8+ Qb7 Qb1 Bc6 f3 e4 f2 Qf3 Ra4 Qe2 Rb4 Ka5 f1N b6 Nd2 Qc7 Rc4 b7 Rc5+ Bb5 Rd5 Qc5 Qb3 Qce3 Qb2 Q3f3 Ndc4+ Ka4 Nd6 Ka5 Qbc8 b8Q Qcb7 Ka4 Nec4 Qa8 Rf5 Bc6 Nce5 Ka5 Qde6 Bb5 Bc6 Qb8 Q6d7 Qc8 Qb8 Ba4 Q2b7 Bb5 Ne6 Qg8 Nd8 Ba4 Bd5 Bb5 Bb3 Bc6 Ba4 Bb5 Qdc8 Bbe8 Qcd7
QqrB1k1q/4N2R/4P2b/5q1n/2P1pR1r/QbqRq3/4Nb2/2BNb1K1 w - - 0 1 illegal: No possible last move, all moves rejected
rq3BKb/qkB5/R1NPq2N/q2b3b/5n1R/4P2p/4NQQr/1q1Q3b w - - 0 1 illegal: No possible last move, all moves rejected
1K2Qn2/rpBR1r2/1Q2r3/1r2qRBk/1b2b1N1/QR2P2b/q1b1P3/2N1b3 w - - 0 1 legal: proof: c4 a5 b4 axb4 h4 g5 c5 gxh4 c6 e6 cxd7+ Ke7 d4 Kd6 d5 Nc6 g3 Nce7 Bg2 Nf5 Be4 Ne3 fxe3 Kc5 d6 Kb6 Bd5 exd5 Qd3 Kc5 Qd1 Kc6 Kf2 h5 Kf3 f5 Kf4 b3 Ke5 b2 a4 h3 g4 f4 g5 f3 a5 h4 a6 d4 a7 h2 g6 h3 g7 f2 Qf1 d3 Nf3 d2 Qg1 f1R Ne1 d1B Bd2 Qe8+ Kd4 Bc2 d8Q Rh6 d7 Kd6 Ra3 Ke6 Bc3 Kf5 Kd5 c5 Qe7 c4 d8B Nf6+ Kd6 Nd7+ Kc7 Re6 Be5 c3 Nd2 b1R g8R Rb5 Ndf3 Qf7 Qe8 Bb4 Rg7 Nf8+ Be7 Qf6 B5d6 Qe5 Bg5 Bd7 Rf7+ Kg6 Rb3 Kh5 Nd3 Rf2 Qg3 Bc8 Rc1 h1Q Rd1 h2 Nc1 Qf1 Rd3 h1B Nh2 Be4 Ng4 Qd1 Rd7+ Rf7 Rd5 Qd2 Qf2 Qed4 Rf5 Qe5 Qf4 Qdd5 Rb2 Qa2 Rb3 Bb1 Qf1 c2 Qd1 Be1 Qd4 Bb4 Nd3 c1B Qb6 Bcd2 Nc1 Qh8 Be5 Bbc2 Bd6 Be1 Bdf4 Rb8 a8Q Qd4 Qa4 Ra8 Qa3 Ra7 Bd6 Qe5 Kb8 Bg2 Bc7 Bh3 Rdd3 Bd7 Rd6 Bc6 Rd7 B6e4
5N2/P3r2n/1RBR1BQn/2k2q1n/q2N2P1/1bpn3Q/1q1Q1r2/2qBKn2 w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Nf3 fxg3 Rg1 g5 Rh1 g2 Ba3 g1N Bb2 Ra5 Bc1 Ra8 Nd4 g4 Nf5 g3 Nh4 g2 Nf3 Bc5 Nd4 Bd6 Nf3 Bg3+ hxg3 Qh4 Kf2 Qf6 Ke1 Qd8 e4 Ke7 a4 Kd6 d4 f5 g4 c5 a5 b5 a6 h5 a7 f4 Be2 c4 Ra3 h4 Qd3 c3 Qc4 b3 Ra4 h3 Bb2 b4 Ne5 h2 Ra3 f3 Nd2 Be6 Ng6 Qe8 Qd3 Nh6 Ra6+ Nc6 Nf8 Nh3 Bd1 Ng5 Ba3 b2 Rb6 b1Q Nb3 g1Q+ Qf1 Nh7 e5+ Kc7 Bc1 Qb2 Bg5 Bf7 e6 Ne5 e7 Qa4 Bf6 Re8 Nc1 b3 Ne2 Qe3 Qh3 Qec1 Rf1 h1N d6+ Kc8 d7+ Kc7 d5 Ng3 Rf2 Nh5 Nd4 Be6 Rd2 f2+ Ke2 f1N Ke1 Rg8 Rd3 Rg7 Rd2 Rb8 e8B Re7 Rd3 Qc6 Rd2 Kd6 d8Q+ Kc5 d6 Qa4 Bc6 Rbb7 d7 Rf7 Bg5 Rf2 Qf6 Bf7 d8Q Re7 Qe6 Rf3 Nf5 Rf2 Rd6 Qbc2 Rd2 b2 Qg6 b1Q Bf6 Qbb2 Qdd3 Bb3 Qde3+ Kc4 Rd6 Qe4 Qe2+ Kc5 Nd4 Qf5 Qd2 Nd3#
6qr/2QnBbk1/2pr4/r4qq1/4qNR1/R3P2B/2PR1NQK/2bb1rQ1 w - - 0 1 legal: proof: e4 a5 b4 d5 h4 dxe4 a4 g5 Qh5 gxh4 Qd1 b5 axb5 axb4 Ra5 e3 Ra4 Qd4 Ra1 Qd8 d3 e5 Ra2 e2 Kd2 e1R Ba3 e4 Kc1 e3 Kb2 e2 Ra1 Nc6 Ka2 Na5 Bc1 Nc4+ Kb3 Ne3 fxe3 Bg4 Kb2 Bc8 g4 f5 d4 Kf7 d5 h5 b6 b3 Kc3 h3 Kd3 c6 g5 b2 g6+ Kg7 b7 f4 Ke4 f3 Kf4 h4 b8R h2 d6 h3 Kg3 f2 d7 Qg5+ Kf3 Ra5 d8Q Ba3 Rb4 Be6 Nc3 b1R Rg4 Nf6 Kg3 Bf7 Ne4 Nd7 Qc7 Rb4 Bd2 Bc1 Ra3 Rd4 Bb4 Rd6 Bg2 f1Q Nf2 Kf6 Qd5 Kg7 Qd2 Rd1 Bc5 e1Q Ne2 Qg1 Nf4 Qef1 Qd5 Qb5 Qe4 Rf1 Qd5 Rf6 Be7 Rd6 Qf3 Qbf5 Qe4 Kg8 g7 Kh7 g8Q+ Kh6 Qgb8 Kg7 Qb1 Rfd1 N4d3 Kg8 Bf6 Qg7 Be7 Bd2 Bg5 Qgh7 Rh4 Kg7 Nf4 Qg8 Be7 Rc1 Kf3 Re1 Bf1 Qgg5 Bg2 Rc1 Rd1 h1B Rg4 h2 Kg3 Be8 Qa2 Bf7 Bh3 Bf3 Qb1 h1Q Qd5 Bb4 Rd4 Bd2 Qe4 Be2 Qa1 Qf3+ Kh2 Re1 Qd1 Bc1 Rd2 Rg1 Qe1 Bd1 Qd5 Rg3 Qh1 Rg1 Qe4 Rf1 Qd5 Q3e4 Qg1 Qa4 Qdg2 Qae4
b6N/q7/1B5P/1nn2PRR/1q1kbBNq/3p2bn/4B1Qb/b2NQK1n w - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 a5 b4 axb4 g5 b3 g6 hxg6 Ba3 g5 Bc1 g4 d3 g5 Bb2 c5 Bc1 b5 Bf4 b4 Bc1 Ra5 d4 Rb5 cxb5 c4 Qd3 Rh6 Qf3 Rc6 Qd1 Rc5 dxc5 Ba6 Qd3 Bb7 Qd1 Bc8 f4 Kf7 a4 Kf6 h4 d5 c6 e5 b6 b2 c7 e3 a5 g3 a6 d4 f5 g4 a7 e4 a8Q Ke5 b7 g2 h5 c3 h6 e2 Qa3 c2 Qa6 g3 Qa4 b3 Nh3 g1N Ra2 g2 Bd2 c1B Qa8 Nf6 Bb4 Nh5 Bc5 Bg7 Bb6 Na6 b8B Bf4 Qd3 Qh4+ Nf2 Bb7 Ra1 Ng3 Nc3 b1N Ra4 b2 Qc2 Na3 Rc4 b1B Rh2 Nh1 Nd5 Nc5 Qa5 Ba8 Ne3 Nb5 Nd1 Nh3 c8N+ Kd5 Ra4 g1Q Nd6 Bh8 Rg2 Bh2 Nf7 Bf6 Bf4 Bg7 Kd2 e1B+ Ke2 e3 Ng4 Beg3 Nh8 Bf6 Qb2 Be4 Qe1 Bg7 Ra7 Be5 Rg7 Kc4 Rg5 Kd5 Qf2 d3+ Ke1 e2 Rh5 Qf6 Qc1 Ba1 Qb1 Qb2 Qc2 Qb4+ Qd2 Bh4 Rg3 Kc4 Qg2 Kd4 Bd8 Kc4 Nf6 Nd7 Bdc7 Qa7 Bb6 Qb1 Qe3 Nc5 Qef2 Qb2 Rgg5 Qba3 Ng4 Kd5 Kd2 Qb4+ Ke3 e1Q+ Be2 Qb1 Qff1 Qg3+ Kd2 Kd4 Qff2+ Kc4 Ke1 Qb4+ Kf1 Kd5 Qe1 Kd4 Ne5 Qg4 Bd8 B4g3 Bb6 Qh4 Ng4 Qa6 Nb2 Qaa4 Nd1 Qa7
kN4Nq/Nb1B2r1/QB2b2n/5B2/n1qPr3/2Qnp2q/1PpR1b2/1K1R4 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 f4 Kd7 g4 h5 d6 Kc6 d3 a5 Kd2 b5 Kc2 Kb7 d7 e5 g5 c5 f6 b4 f7 a4 g6 h3 g7 h4 f5 h2 f6 a3 Be3 h3 Ne2 c4 Ng3 c3 Bb6 e4 Nf5 Nh6 g8B Ra7 Bh7 Bc5 f8N Ka8 f7 Bf2 d4 e3 Bb5 Qe8 Re1 h1B d8Q h2 Nd7 Bb7 f8Q h1Q Nb8 Qh3 Qdd6 Be6 Bd7 Rg8 Qd3 Rg4 Rd1 Re4 Rd2 Qc8 Ne7 Qc4 Ng8 b3+ Kd1 Rh4 Bf5 Re4 Qc8 c2+ Ke2 c1N+ Kd1 Qh4 Qdc7 Qh3 Qc2 Nd3 Qc6 Nc5 Nc3 Nb4 Kc1 a2 Nb5 Na4 Rb1 a1Q Q8c7 Qa3 Ra1 Nd3+ Kb1 Qf8 Q6d6 Ra5 Na7 Qf6 Qcc6 Qh8 Qb4 Rae5 Qbc3 Rg4 Qb5 Rg7 Qa6 Nac5 Ra5 Na4 Rc5 Re4 Rc6 Bd5 Rg6 Bf7 Rg1 Be6 Rgd1 bxc2+
B4Qb1/b3N3/5Q2/BN3Pqk/r1n3p1/Br5n/pqNbKRPn/5qR1 w - - 0 1 legal: proof: b4 c5 a4 d5 h4 f5 e4 fxe4 c4 Qd6 cxd5 cxb4 h5 b5 h6 Qxh6 axb5 Qh2 d4 Kf7 f4 Kg6 b6 h5 d6 e5 d7 a5 d8B a4 d5 h4 d6 e3 b7 h3 d7 e2 f5+ Kh5 Qd6 g5 Kd2 e1B+ Kd1 e4 Ra2 e3 Qg3 a3 Re2 a2 Bb6 b3 d8N b2 Na3 b1Q Nc6 Bc5 Na5 Nf6 Qe5 Ng4 Bd8 Bd2 Qe7 Qg3 Qg7 h2 Qd7 Ba7 Nf3 Nc6 b8Q Nce5 Qc6 Qb2 Rg1 h1N Nd4 Be6 Rf2 Bg8 Qf6 Nh2 Ke2 Nc4 Nac2 g4 Bc7 Qh4 Nb5 Qg5 Qbf8 Rh7 Bb6 Rb7 Nc6 Rbb8 Ba5 Rb7 Rf4 Nf2 Ne7 Nh3 Rf2 Rb6 Kd3 Rbb8 Be2 Rb6 Bf3 e2 Bc6 e1Q Bd5 Qbe5 Ba3 Qb2 Nc3 Rb4 Nb5 Rb8 Bc6 Ra4 Ba8 Qec1 Ke2 Rb7 Nd6 Rb3 Nb5 Qf1+
2r2R2/Bn4Kb/n1b3B1/1pNkp3/1Rq3r1/1PrN2qQ/2n3RP/B1Q3b1 w - - 0 1 legal: proof: g4 c5 d4 h5 e4 hxg4 c4 d5 b3 f5 exf5 cxd4 cxd5 a5 Qc2 a4 Qd2 a3 Qb2 axb2 Ke2 Kf7 Kd3 e5 Ke4 b5 a4 g5 f4 d3 f6 d2 a5 d1N f5 g3 d6 g2 a6 g4 a7 g3 d7 Ne3 Nf3 g1Q Nbd2 b1B+ Bd3 g2 Ra4 Nc6 Rb4 Qe1 Bb2 g1R Ba1 Qe2 Ne1 Rg7 Rg1 Be7 Rg2 Na5 Bc2 Qe8 d8B Bc5 Bb6 Bd7 Nd3 Rc8 a8Q Rh3 Qc6 Ne7 Ba7 Nb7 Qc7 Qg8 Qc6 Kf8 f7 N7d5 Qh6 Ke7 f8R Qf1 f6+ Ke6 f7+ Rg6 Qh5 Nc7 Qd1 Na6 Qc1 Ba2 Bb1 Qf2 Bc2 Qg3 Bb1 Be8 Bc2 Kd6 Bb1 Nc2 Kf5 Bf2 Ne4+ Kd5 Nec5 Rg4 Kf6 Bg1 Nf2 Ne3 Bg6 Nc2 Nfd3 Bb1 Qe1 Qh7 Qc1 Qhh4+ Kg7 Bd7 Rg8 Bc6 f8Q Qg5 Qf5 Q5f4 Rf8 Qc4 Qh5 Qh4 Nb2 Rc3 Nbd3 Qg3 Qh3 Na3 Nb2 Bf5 Nbd3 Nc2 Ne4 Be6 Nec5 Bg8 Qe1 Bh7 Qf1 Kd4 Qc1 Kd5
q4K2/1R4Br/p7/Qp1k1PB1/4N1rn/1bq2PN1/nR2B2q/r2nQQb1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 b4 gxh4 b5 a6 a4 axb5 a5 Ra7 a6 bxa6 Rh2 Ra8 Rh3 Qd6 Rh1 Qd8 Ke2 Kf7 Kf3 c5 Kf4 e5+ Ke4 h5 g4 c4 d4 c3 d6 h3 Kd5 c2 d7 e4 Ra5 h4 Qd2 e3 Qe1 e2 Rh2 Nh6 Bf4 c1Q Nd2 Qdc7 d8Q Nc6 Ra2 Bc5 Bg5 Rh7 Rb2 Qc3 Ne4 Qa7 Qa5 Nb4+ Ke5 Bb6 Kd6 Be6 d5 Rg8 Bf6 Rg5 Bg7 Na2 Rg2 h2 f3 h1R Rg3 h3 Rg2 Rg6 g5 h2 Rg3 Ng4 Rg2 Rf6 g6+ Ke8 Rg3 Ne3 Rg5 Kd8 Rh5 Kc8 Rg5 Kb7 Ke7 Kc7 d6+ Kc6+ d7 Nd1 Rh5 Bf7 Kf8 Kd5 d8B Rc6 Bg5 Rc4 Ng3 Be6 Nh3 Bg1 Nf2 Rg4 Nfe4 Bg8 Qf2 e1N Be2 Ng2 Qe1 Nh4 Rh6 Be3 Rh5 Rf1 Rh6 h1Q Rh5 Rh8 Rh7 Qh2 B7f6 Ng2 Qf2 Rf4 Nh5 Nh4 Rb7 Rh7 Bh6 Kc6 Bd8 Re1 Qg2 Bg1 Qf1 Ne3 Be7 Ra1 g7 Be6 g8Q Bb3 Qg3 Kd5 Beg5 Rg4 Bg7 Nd1 Qge1 Rh6 Nhg3 Rh5 Nh1 Rh7 Nhg3 Qa8+
rQ5n/N1Bpb2k/1rB1PqNn/8/2qr3b/KRQ3N1/p1P2n2/2B2Rq1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 f5 b4 Kf7 e4 Kg6 b6 h5 g5 a5 b5 a4 e5 a3 e6 h4 b7 h3 b6 f4 Bc4 f3 Bb3 h2 Nc3 d3 Qe1 f2 Nb5 f1Q Kc3 d2 Ba2 d1R Kb3 Kh7 Ne2 g1Q Qc3 g2 Rb1 Rd4 Ng3 Nc6 b8B Ne5 b7 Qdf6 Bc7 Be7 b8Q Nh6 Na7 Nef7 Rb2 Rd8 Rb1 Nh8 g6+ Kg8 g7 Kh7 g8N Rf8 Qbb4 Rfb8 Ka4 Q1f4 Bd5 a2 Rb3 Rb6 Ka3 Qff1 Bc6 Qc4 Bb8 Qd1 Qd6 g1B Bc7 Bf2 Rf1 h1N Qdb4 Be1 Qd6 Nf2 Qdb4 Bd6 Ne7 Qg4 Ng6 Be7 Ne2 Qg1 Ng3 Bd2 Qd6 Bg5 Qdb4 Bd8 Qf8 Bh4 Qd6 Rb4 Qf8 Be7 Qb8 Rb6+
8/3pqP2/b1BKQnr1/1qNp2Q1/Brr2RR1/1bk4P/Q1nq3n/5N1N w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 exf4 d4 c6 g3 f3 d5 cxd5 Bh3 f5 Bh6 f4 Qd4 f2+ Kd2 f3 Bg5 Bd6 Bf1 Bf4+ gxf4 h6 Ke3 hxg5 Qd1 Ke7 Kd2 Ke8 Ke3 Kf7 Kd4 Ke6 Kc5 a5 b4 g4 e4 g5 c4 a4 h3 a3 e5 a2 b6 g3 b7 g2 b5 g4 b6 g3 f5+ Kf7 f6 Ke6 f7 Rh4 Qe2 Rh6 Nd2 Nc6 b8N Ba6 b7 Bb5 Na6 Rg6 b8Q Nb4 Rd1 Kf5 e6 a1R e7 Ba4 e8Q Nf6 Kd6 Rc1 c5 Bb3 c6 Nc2 Nc5 Ra4 c7 Rb4 c8B Kf4 Bb7 Qe7+ Kc7 Kf5 Qbd8 Kf4 Qa6 Ke3 Bc6 Kd4 Qa2 Kc3 Bfb5 f1B Ba4 Ba6 Nf1 f2 Rd4 Qe1 Nd2 f1N Qe6 Nh2 Nf1 Qe3 Rg4 Qd2 Nf3 g1Q Kd6 g2 Nh4 Qgf2 Nf5 g1Q N5g3 Qfe3 Rf4 Qgg2 Rg1 Qge2 Nh1 Qb5 Rgg4 Re1 Rf2 Qg5 Qg8 Ree4 Rff4 Red4 Qg7 Rdc4 Qh6 Qh4 Qg5 Qhe1 Qef5 Qe8 Qe6 Qe7+
B2k2q1/rPN1r1P1/1bqnr1K1/1bpN4/Qn3R2/N4B2/bp5q/Q1R3R1 w - - 0 1 legal: proof: b4 a5 h4 f5 e4 g5 exf5 gxh4 c4 d5 cxd5 Qd7 a4 Qd8 b5 b6 Qb3 Kf7 Qb4 axb4 a5 b3 a6 Bg7 Bb2 Bf8 Bc3 Ke8 Ba5 bxa5 Ke2 e5 Kf3 c5 Kg4 h3 Kh5 h6 g4 e4 d4 a4 f4 h2 g5 e3 g6 e2 g7 e1Q b6 a3 f6 a2 f7+ Kd7 b7 b2 d6 Qde8 f5 Ra7 d5 Ne7 f6 Nf5 Be2 Qg3 Nh3 Nc6 Bf3 Kd8 d7 Bd6 Rg1 h1B Nf4 Nb4 Na3 Qh2+ Kg6 h5 Rac1 Qg8 f8N a1R f7 h4 N8e6+ Ke7 d8R h3 Rf8 Bd7 Nc7 Bb5 Nce6 Bc7 d6+ Kd7 Nd5 Bb6 Nec7 Rh7 Rb8 Rh4 f8Q Re4 Re8 Re3 Re4 Rb1 Reg4 Re7 Rf4 Ra1 Qf7 Kd8 d7 Nd6 Qf5 Bg2 Qe4 Bgf1 Qc2 Bfc4 Qa4 Ba2 Rc3 Ra8 a7 Rae1 Rcc4 Qe2 Rc3 h2 Rc1 h1Q Rc3 Ra1 Rcc1 Rc8 a8B Qeh2 Ne8 Rc6 Nec7 Q1g2+ Bg4 Qhg3 Ne3 Bb1+ Rc2 Q3h2 Nac4 Ra3 Qb3 Ra7 Qa3 Ba2 Qa4 Qgh1 Na3 Ne8+ Rf6 Qhd5 Bf3 Rce6 Rc4 Re4 Rf4 Rf7 Rc3 Ke7 Rc2 Kd6 Rc4 Qc6 d8Q+ Rd7 Qh4 Rde7 Ned5 Re2 Qe1 Kd7+ Nf6+ Kd8 Qa1 R2e5 Rcc1 Nd6 Nfd5 R5e6+
n1R1r1RQ/N4b2/1k1rnP2/6Br/1b2Nn2/1nP1KQ2/1p1p2nB/3q1BQ1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 e5 f4 h5 g4 d5 g5 Kd7 b6 Kc6 g6 b3 c3 d3+ Kd2 d4 b7 h3 g7 h2 f6 b2 f7 h4 f5 h3 f6 e4 Ne2 e3+ Ke1 Nh6 g8Q Nd7 b8Q Nf5 Ra2 Bb4 f8B Rh5 Qg7 Nb6 Ra3 Be6 Qga7 Ng7 Ra6 Bf7 Nf4 e2 Kf2 e1N Ra1 d2 Bd6 d3 Bc5 Ng2 Ra3 Ne6 Rg1 h1N+ Kf3 h2 Ne2 Ngf4 Rg8 Nf2 Bd6 h1R Ke3 Ne4 Ng3 N4c5 Ne4 Nb3 Qf3 Qd7 Qf8 Re8 Qh6 Rg1 Qh8 Na8 Ra5 Rgg5 Na3 Rd5 Nb5 Qd8 Be5 Rd6 Qd4 Kb7 Na7 Kc7 Rc5+ Kb6 Qd5 Qd7 Rc8 Qa4 Qg3 Qa1 Qg1 d1N+ Kf3+ Ne3 Bd2 Ng2 Bh2 Ngf4 Kf2 Neg2 Bc1 Ng6 Bg5 d2 Qd3 Ng6f4 Qf3 Ne1 Ke3 Qc1 Rc7 Qd1 Rc8 Neg2+
1R2bnr1/3Q3p/2N5/1Qb2K1b/Nr5k/1pqn1Qb1/1B2P1BP/Nbn1R3 w - - 0 1 legal: proof: d4 c5 b4 cxb4 g4 f5 a4 e5 dxe5 fxg4 Bg2 b5 axb5 a6 Bf1 axb5 Kd2 Ke7 Ke3 d5 Kf4 g5+ Ke3 d4+ Ke4 b3 f4 b4 c4 g3 e6 Kf6 f5 g4 e7 d3 e8Q d2 c5 Kg5 c6 g2 c7 b2 f6 g3 f7 Bc5 f8N Na6 Ra4 Qf6 Qb5 Rb8 Qd7 Ne7 Qh3 Ng6 Qb3 Bg4 c8Q Rg8 Qc4 Qc3 Ra5 Bh5 Na3 b1B+ Nc2 b3 Ra1 Nb4 Ra8 Nd3 Qhf5+ Kh4 Nd7 d1B Na1 Bdc2 Qb5 Nf8 Bb2 Nc1+ Kf4 Be4 Nb6 Bc6 Na4 Bce8 Qcd7 Rb7 Rb8 Rb6 Nh3 g1B Bg2 Bgf2 Ng5 Rb7 Re1 Rb6 Bc6 g2 Nf7 g1N Bg2 Nf3 Nd8 Ne5 Nc6 Ned3+ Ke4 Rb7 Qf3 Bg3 Kf5 Rb6 Qa6 Rb4 Qc4+ Bd4 Qb5 Bc5
2R5/R5Pr/1PqkBQ1p/bQ3b2/5KQ1/2p3Nr/1r3Brn/Bn1br2N w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 c5 e4 f5 d4 c4 g4 h3 e5 b3 e6 b2 g5 h6 b6 h2 g6 c3 g7 Qd6 Ra2 Rh7 Nd2 b1R Bb2 Qc6 Ne2 Nf6 Ng3 Kd6 e7 Na6 e8Q Nc5 Ba1 Nb3 Ra7 Rb2 Bc4 Ng4 Re1 h1R Ndf1 Rh3 Qh5 Bd7 Re8 Be6 Rc8 Nd2+ Ke2 Nh2 Nh1 f3+ Ke3 f2+ Nfg3 f1R Qdg4 Re1+ Kf4 Nb1 Qe8 Qc7 Qb5 Qb7 Rc7 Re8 Rc8 Bd7 Bb3 R8e2 Ba2 Rg2 Bb3 Ke7 Ba2 Qc6 d6+ Kf6 d5 Be6 d7 Ke7 d8B+ Kd6 Bh4 Bd7 Qbe2 Be6 Ke3 f4+ Ke4 f3 Kf4 f2 Qb5 f1B Nh5 Bd7 Bf2 Ke7 N5g3 Be2 d6+ Kf6 Qb4 Bd1 Qb5 Bf5 d7 Bb4 Bf7 Ke7 Be6 Kd6 d8Q+ Qd7 Qdg5 Ba5 Qf6 Qc6
b7/n1PK1N1k/n1B2Rb1/n1n3Qp/1N2nPRb/rq1Q1r2/p6Q/1B5N w - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 g5 h4 gxh4 d3 Kf7 Bd2 Ke8 d4 cxd4 Bc3 dxc3 axb5 Ba6 Qb3 Bb7 Qd1 Bc8 Ke2 Kf7 Kf3 Kg7 Ke4 d5+ Ke5 h5 g4 a5 b4 d4 c5 h3 f6+ Kh6 c6 h2 g5+ Kg6 f7 d3 b6 a4 b7 a3 b5 a2 b6 d2 Bd3+ Kg7 g6 e6 Na3 c2 Nh3 c1N Rf1 h1B Bb1 Nb3 Nc2 Be7 f8N Ra3 Nb4 Nf6 Nh7 Qd3 N7g5 Rf8 Nf7 Na6 b8Q Na5 b7 Ne4 c7 Bd7 Qd8 Bh4 b8Q Qb3 Qg5 Be8 f3 Kg8 g7 Kh7 Nf2 Bg2 Qe2 d1N Nh1 Nc3 Qbd8 Nb5 Qdd3 Na7 Qf2 Bc6 Qfg3 Ba8 Qh2 Bh3 Rg1 Bf5 Rg3 Bg6 Rg4 Nf2 Kd6 e5 Ke7 e4 Kd7 e3 g8B+ Kg7 Nh8 e2 Bd5 e1N Nf7 Ne4 Bc6 Kh7 Bc2 Ng2 Rf1 Nf4 Bb1 Ne6 f4 Rb8 Rc1 Rb5 Rc4 Rc5 Rd4 Rc3 Rd6 Ne6c5+ Ke7 Rc1 Rf6 Rf1 Ke8 Rf3 Kd8 Ne6+ Kd7 Ne6c5+
2k2B1N/1p1b1n2/NKr5/RQ2R3/PnQ5/3n1pBb/n2PN3/Q1r1q1bn w - - 0 1 legal: proof: f4 e5 g4 a5 c4 f5 b4 axb4 Bg2 d5 cxd5 h6 Bh3 exf4 gxf5 h5 Bg4 hxg4 Kf2 Kd7 a4 g5 h4 c5 e4 g3+ Ke2 g2 Kd3 f3 Kc4 g4 Kb5 b3 e5 g3 d6 c4 f6 c3 f7 c2 h5 b2 h6 Qe8 h7 Ra5+ Kb6 Na6 Ka7 Rc5 Qe2 Nh6 Nc3 b1B Rh5 Nb4 Ba3 c1N Nd5 Nca2 Kb6 Bf5 Nc7 Bh3 e6+ Kd8 Rb1 Bd7 e7+ Kc8 Qc4 Bg7 f8Q Bd4 Qf6 Nf7 Ne2 g1N Re1 g2 Na6 Rf8 h8N Bf2 Ng3 Ne2 Qa1 Nf4 Ree5 g1N Ne2 Nfd3 Rhg5 Bf1 Rgf5 Nh3 Rh5 Bg1 Rhf5 Rg8 Rh5 Nhf2 Rhf5 Qf8 e8Q+ Nd8 Rh5 Bfh3 Rhg5 Qe7 Rgf5 Be6 Qeb5 Nh1 Rh5 Nf7 d7+ Kd8 Rhf5 Rg2 Rh5 Rf2 Rhf5 Rf1 Rh5 Qh4 Rhg5 Rc1 Rh5 Ke7 d8B+ Kd6 Rhg5 Qe1 Bc7+ Ke7 Bd6+ Kd8 Bf8 Bc8 Bb2 Bhd7 Bd4 Bh3 Bf2 Bcd7 Bg3 Kc8 Re4 Nde5 Qa5 Ned3 Re3 Rc7 Rb5 Rc5 Re5 Nc2 Qab4 Bhg4 Ra5 Bh3 Qbb5 Ncb4 Bd6 Rc3 Be7 Rc1 Bf8 Rc6#
r2q2nN/k1rqq3/1bRb1Q1P/N1p1R1PB/2n5/B2qp2K/4q3/2QN2R1 w - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 h5 g4 hxg4 f3 g3 Ra4 g2 Ra3 Nc6 Ra1 Nb8 Nc3 g5 Nb1 g4 Qe2 g3 Qd1 Bg4 fxg4 Qd3 Qa4 Qd5 Qd1 Qd8 b4 Kd7 d4 Kc8 h4 Kb7 b6 a5 g5 e5 b5 c6 d5 e3 h5 e2 d6 c3 d7 c2 h6 a4 Ba3 c1Q Nc3 e4 Nh3 g1B Nf4 g2 Ng6 Rh7 Nh8 Qb1 Qc1 Qd3 Nd1 Bd6 Rh4 Qe8 d8Q Nd7 Qf6 Ne5 Rh2 Kb8 b7 Ka7 b8R Bb6 Rc8 c5 Kf2 Nc4 Rc6 e1Q+ Kg1 Qa5 Be2 Rc7 Bh5 e3 Rh4 Qad2 Re4 Q2e2 Re5 Qe7 Kh2 g1Q+ Kh3 Qge1 Bb2 a3 Rb1 a2 Ba3 Q1d2 Ra1 Ba5 Rb1 a1Q b6+ Ka6 b7+ Bb6 b8N+ Ka7 Na6 Qad4 Nb4 Qg6 Nc2 Q4d3 Nd4 Qge8 Nb3 Q7d8 Na5 Qe4 Rf5 Q4e7 Re5 Qdd3 Rb4 Nb2 Rg4 Nc4 Rg1 Qe8d7+
NN3n1q/4rPBR/B1Qp2k1/1Q3R2/r1r1Bb1p/bQr2P2/5n2/1r1q1K2 w - - 0 1 illegal: No possible last move, all moves rejected
nbR1QK2/2Q1p2k/N1B4P/1N1pPn2/b4B1n/2qB1r2/q6R/n3Qr1n w - - 0 1 legal: proof: b4 a5 g4 g5 a4 c5 d4 cxd4 f4 b5 axb5 axb4 fxg5 h5 Ra4 hxg4 Ra5 Ra7 Ra1 Ra8 Kd2 d5 Kd3 f5 h4 Kf7 c4 Kg6 e4 g3 c5 b3 c6 b2 c7 g2 b6 f4 b7 f3 Qd2 f2 Ra2 Bh6 Na3 b1Q+ Nc2 Nd7 b8Q Nb6 Ne2 g1N Nc3 Bd7 c8B Nf3 Bb7 Ra3 h5+ Kg7 g6 Qc7 Ba8 Bf4 Qe1 Nh6 Ra1 Qa2 Nb4 Qe5 Na6 Rf8 Rh2 Ba4 Qa7 Kg8 g7 Kh7 Bd2 Rf6 Rc1 Nh4 Be2 f1N Rc2 N6f5 h6 N1g3 Qb8 Nh1 Be3 Kg6 g8Q+ Ng7 Qge8+ Kh7 Bb7 Na8 Bc1 Bb3 Nb5 Ba4+ Rc3 Qc7 Qbc8 Be5 Bd2 Rf1 Bf4 Ngf5 Qcd8 Bb3 Rc1 Qa5 Rc8 Bb8 Bc6 Qb4 Qd6 Qc5 Qc7 Bc2+ Kd2 Raf3 Bc4 d3 Kc3 d2+ Be3 Qd6 Bd3 Ba4 Bf4 Ne3 Kd4 Qda3 Ke5 d1N Ke6 Nc2 Kf7 Qc3 Kf8 Nde3 e5+ Nef5 Rd2 Na1 Rf2 Rh3 Rh2 Rhf3
6r1/nNp4K/Q2nqPNN/bB4qk/pbP1Bn2/R6n/3rRQ2/5nR1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 f5 a5 b6 axb6 fxg4 b4 a5 b5 h5 Bb2 Ba6 Be5 h4 Bg3 hxg3 bxa6 Qc8 Bb5+ Qd7 Bf1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 e3 d4 g2 h4 e2 b7 e1N d5 e6 d6 a4 d7 g3 a7 Rh5 Nh3 g1N Na3 g2 Bb5 Nh6 c4 Qc8 d8N Nef3 Qc2+ Nf5 Nf7 Bb4 Nh6 Nc6 b8Q Nh2 Qb6 Nf1 Qa6 e5+ Ke4 Qe8 f4 Ne2 Rg1 Qe6 Qa2 Rh8 a8B Na7 Qd2 Rd8 Ra2 Rg5 h5+ Kf6 Qe3 Rd2 Qf2 Rg3 Bac6 g5 Rc2 g4 Ba8 Ne7 f5 Nec8 Nf4 Kg5 Ng6 Nf4 f6 Ba5 Nf5 Bb4 h6 Kh5 h7 Ba5 Nh6 Bb4 h8R Ba5 Nh4 Bb4 Rh1 g1N Ng6+ Ngh3 Rg1 Rg2 Rd8 g3 Rd3 Ba5 Nb1 Bb4 Ra3 Ba5 Nc3 Nd6+ Kf3 Bb4 Ne4 Ba5 Rh1 Rg1 Nc5 g2 Be4 Ng3 Bd3 e4+ Ke3 Bb4 Nb7 Nf1+ Kd4 e3 Rca2 Qf7 Ke5 e2 Be4 e1B Rc2 Ba5 Rb2 Rd1 Re2 Beb4 Bd7 Rd2 Bb5 Nd5 Qe3 Qd7 Qf2 Qc6 Ke6 Nf4+ Ke7 Qd7+ Kf8 Qc8+ Kg7 Qe6 Rh2 Rh1 Kh8 g1Q Kh7 Qg5 Rg2 Rh2 Rg1 Rg2 Ree3 Qgd5 Re2 Rg5 Nh4 Rg8 Ng6 Qg5
q1b3R1/5N1K/3q2r1/P2NPr2/3rq1RN/3kn1Rn/1qpB1BQp/1Q1b4 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 g6 g5 Bd6 Bh3 f3 Bf5 gxf5 g6 f4 Nc3 Be7 Nb1 Bg5 hxg5 Ra7 Rh5 Ra5 Rh1 Ra8 Kf2 Ke7 a4 f5 d4 h5 e4 b5 d6+ Ke6 e5 c5 d7 h4 g7 b3 Bb2 c4 g6 h3 Rh2 Kd5 Rh1 Ke4 d5 b4 d6 c3 Ne2 Nh6 g8N h2 g7 Qf6 d8B Na6 d7 Nf7 a5 Rh4 Bc7 Ng5 d8Q Nh3+ Kf1 f2 Kg2 f1R Bb8 f3+ Kg3 f2 Na3 Nc7 Q1d2 Ra6 Nc2 Nd5 Bc1 b2 Ncd4 b1Q Qb6 b3 Ra3 b2 Nh6 c2 g8R f4+ Kg2 f3+ Kg3 Qc6 Rg1 Qa8 Ba7 Qa2 Rb3 b1Q Nf7 Qa4 Nf5 Qd7 Qb5 Rf6 Ra3 Qd6 Nf4 Qa2 Qb1 Qb2 Rg2 Rg1 Be3 f1Q Qf2 Qe1 Bcd2 Qe2 Qff1 f2 Bb6 Nc3 Nd5 Nd1 Bc5 Rf4 Nh4 R6f5 Ra4+ Kd3 Ba7 Rf3+ Kg4 R5f4+ Kh5 Rg4 Rg6 Rf5+ Kh6 Rc4 Kh7 Rcf4 Qe1 f1B Qg3+ Qe3 Rg8 Be2 Qg4 Qf3 Bf2 Ne3 Qg5 Bd1 Qg3 Rg4 Rc4 Qf4 Qf3 Rg6 Rg5 Rg4 Qg2 Qf3 Rb4 Re4 Rg3 Rc4 Rb6 Ra4 Rb4 Qg4 Re4 Rd4 Rf4 Qf3 Rfg4 Qe4
1qqRb1nr/Bn1Q2p1/rr3R2/NbNb4/1R3P2/krp3PN/6K1/6QB w - - 0 1 legal: proof: c4 h5 a4 d5 g3 b5 axb5 dxc4 Qc2 h4 Qe4 h3 Qd5 Nf6 Qg2 Ng8 f4 hxg2 e3 e5 Ra6 exf4 Ra1 f3 Nc3 f5 Bd3 f2+ Kd1 f4 Nb1 f3 Be2 Bd6 Bf1 Bf4 exf4 Qh4 Ra2 Qe7 Ra1 Qd8 b4 Ke7 d4 Kd6 h4 c5 h5 a5 h6 c3 b6 a4 b5 a3 h7 c4 b7 a2 d5 Kc5 d6 Kb4 d7 Qe7 d8R Qf6 b6 Ra7 Na3 Be6 Nh3 g1R Be3 Na6 b8N Rb7 Nd7 Qf8 Nc5 c2+ Kd2 Bd5 Bg2 f1B Ke1 c1Q+ Kf2 c3 Nc4 Qb1 Na5 Ka3 Bd4 Qb5 Rb1 a1R Rb4 Bd3 Rh2 Bg6 Bh1 Rgb1 Be3 Rb8 b7 Be8 Bd4 Rb3 Be3 Ra8 b8Q Rab1 Qd6 Qb8 Qd7 R1b2+ Kg1 Ra7 Re2 f2+ Kh2 f1B Rd2 Bdg2 Rd6 Bb5 Rf6 Bd5+ Bf2 Bdf7 Kg2 Rb1 Nd3 Nc5 Bg1 Nb7 Nc5 Ra6 Bd4 Re1 Bf2 Ree6 Bd4 Ne7 Bf2 Reb6 Bg1 Rg8 h8Q Qc8 Qh7 Rh8 Qb1 Ng8 Bf2 Qd6 Qg1 Qdb8 Ne6 Rc6 Ba7 Rcb6 Nc5 Bd5+
N1n1N1r1/1Rr1nP2/1Nbb4/n3kPp1/q3B2B/3b1p1Q/3nRq2/KR4Q1 w - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 d4 cxd4 f4 b5 axb5 f6 e5 Na6 Qf3 Nb8 exf6 e6 f5 e5 Qf4 exf4 Kd1 Kf7 c4 d5 Kc2 a5 b4 g3 Kb2 f3 h4 d3 b6 a4 h5 g6 h6 d2 c5 d1B b5 g2 b7 d4 h7 d3 c6 d2 c7 Bd6 b6 Qf8 Ne2 g1N Nd4 Nc6 b8Q Na7 b7 Ne2 Ne6 Ng3 Ng7 Ne7 Rh2 Bd7 c8N Be2 Nb6 d1Q Nd2 Ne4 Rb1 a3+ Ka1 a2 Ndc4 Nd2 Ne8 Nac8 Qa7 Bc6 b8R Bd3 Rb7 Qa4 Re2 Rg8 h8Q g5 Qh3 Rb8 Na8 Qh6 Qe3 Qh4 Qg1 Qf2 Ncb6 Rg7 Bb2 Rh7 Bc3 Rg7 Kb2 a1N Be5 Rh7 Bg3 Nab3 Bh4 Na5 Re5 Bdb5 Bd3 Rg7 Be4 Bd3 Ra7 Rb7 Re6 Rc7 Rb7 Kf8 f7 Rg8 Nf6 Kg7 Ne8+ Kh8 Bd5 Kh7 Re2 Kh8 Be4 Kh7 Nf6+ Kg7 Ne8+ Kh6 Qc1 Kh5 Qhf1 Kg4 Qh3+ Kf4 Qg1 Qc2+ Ka1 Ke5 Qgg4 Qb3 Qg1 Qa4+
rRBqb2b/1B1P3n/1p4pP/N1nb4/1Q3b1R/Bqr5/KQN2k2/2n4R w - - 0 1 illegal: No possible last move
4nQN1/p1q5/2b2nr1/2RN2B1/1BQrb3/q1p1n1K1/PPk3Bn/R1N4q w - - 0 1 legal: proof: d4 f5 e4 g5 c4 b6 c5 bxc5 exf5 cxd4 Qg4 d3 Qf3 Nh6 Qd1 Ng8 f4 gxf4 g4 Bg7 h4 Be5 g5 Bf6 g6 Bg5 hxg5 Bb7 Nc3 Ba6 Nb1 Bc8 Kf2 h5 g7 Kf7 f6 Ke6 f7 Kd5 f8B Kd4 g6 d5 Rh4 e5 Rh3 c5 Rh2 h4 Bd6 h3 Rh1 c4 Nc3 f3 Bd2 e4 Bg3 e3+ Ke1 h2 Bc7 e2 Kf2 Rh6 Qc2 Nd7 Rb1 Ngf6 g8Q Ne8 g7 Bb7 Kg3 e1Q+ Kf4 f2 Bg2 f1N Nh3 Qee7 Qd1 Qa3 Ne4 c3 Bd6 Ndf6 Bb8 Rg6 Qc1 Bc6 Bd6 Qc7 Nc5 Rd8 Qf8 Rd7 Rg1 h1B g8N Nh2 Qf1 Kc4 Nb3 d4 Re1 Rd8 Be3 Rd7 Re2 d2 Nc1 d1N Bd2 d3 Re5 Kd4 Bb4 Ne3 Qe2 Rd6 Rc5 Be4 Qg4 Bc6 Kg3+ Be4 Be1 d2 Nf4 d1Q Bd2 Qf1 Nd5 Qd1 Ne2+ Kd3 Nc1+ Kc2 Rf1 Nc4 Bg5 Ne3 Nb6 Bc6 Qc4 Qh5 Nd5 Qh8 Bh3 Be4 Bg2 Qh6 Nb3 Qh5 Rb1 Qd1 Ra1 Qh1 Nc1 Qg7 Nde7 Rd4 Nd5 Qc7+
1R1nBb2/2k2n2/K5rn/1R1B2B1/pPN3P1/1R4p1/Qr1N1qnQ/b4rr1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 f5 Kd3 h5 Kc4 a5 e4 d5+ Kd3 Kd7 b4 a4 c4 f4 c5 h4 b6 f3 b7 f2 e5 h3 Ba3 h2 Ne2 g1B Nc1 Nc6 b8R Ra6 Qe2 Qf6 Qd2 Nd8 Bg2 f1N Bb2 Ne3 Ra3 Nc4 Nb3 Nd6 Na5 N6f7 Bc1 Rh3 Qf2 Ngh6 Qa2 Qf3+ Be3 Rg6 Rb3 Bf2 Rd1 h1R Re1 Qf6 Bg5 Rg1 Re3 Rh2 e6+ Kc7 e7 Kd7 c6+ Kd6 Kd2 d3 e8B d4 c7 Qf4 c8Q Be1+ Kc1 d2+ Kb2 d1R Qc2 d3 Re5 d2 Kc3 Kc7 Ba8 Qf5 Kc4 Bf2 Bg2 Rdf1 Kb5+ B2c5 Ba8 d1N Nc4 Ne3 Qd2 Bb6 Ka6 Bd4+ Bac6 Qf3 Reb5 Ba1 Qg2 Qf5 Qh3 Rb2 Qh2 Qf2 Nbd2 Ne6 Ba8 Ng2 Bd5 Ned8+
N1r5/r4pQ1/2QrB1p1/N7/bP1b1kn1/KnN1R3/B2q1B1P/2Rn2rn w - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 e5 Ra4 Ba6 Ra1 Bc8 f4 exf4 g4 a5 b3 h5 Bh3 hxg4 Bg2 a4 Bf1 axb3 e4 Kd7 d4 Kd6 Kd2 c5 Kc3 c4 Kb2 g6 e5+ Kd7 d6 Ke6 d5+ Kf5 e6 g3 d7 f3 e7 g2 e8B f2 d6 Bg7+ Nc3 Ra7 Ra3 Bd4 Nf3 g1R Ne5 Nc6 Be3 Nh6 Qc1 Na5 Nc6 Ng4 Bh3 f1R Bf2 Rd1 Qa1 Qg5 d8N Kf4 d7 Ba6 Bg2 Bb5 Bd5 Ba4 Be6 Rg3 Re1 Rg1 Re3 Rg8 Ra2 Qd5 Ka3 b2 Qc1 Rh8 Ra1 Nb3 Na5 Rf8 Qc2 Qg2 Rc1 Rg8 Be1 Qd2 Bf2 Rh8 Ndc6 Rf8 d8Q Rh8 Ne7 b1N+ Ka2 Rf8 Bc6 Rh8 Bcd5 Rg8 Nb5 c3 Nc7 Rf8 Qa8 Rc8 Qb2 c2 Qc6 Nc3+ Ka3 Bb5 Na8 Ba4 Ra1 c1N Bc4 N1e2 Rc1 Ng3 Nd5+ Kg5 Qa1 Nh1 Qb2 Rde1 Qa1 Nd1 Nc3 Kf4 Qb2 Na1 Ba2 Nb3 Rh3 Re5 Re3 Rd5 Nb1 Bc5 Qg7 Rd6 Nc3 Bd4
3K1QNR/1nR2p1n/1qp1q3/1PqP4/2BQb2R/2nbn1k1/1B1Nr3/nQ6 w - - 0 1 legal: proof: g4 e5 a4 b5 c4 bxa4 f4 exf4 c5 h5 c6 h4 Na3 a6 Nb1 dxc6 Nc3 c5 Nb1 c4 Nh3 g5 Qc2 a5 Qd1 Bc5 Qb3 Bf2+ Kd1 Rh5 gxh5 g4 Ng1 g3 Qc2 g2 Qb3 Bg3 hxg3 Ra6 Ke1 Rh6 Qd1 Rh8 Kf2 Kd7 Kf3 Ke6 Kg4 a3 b4 c3 e4 h3 d4 f3 h6 a4 b5 c2 e5 c6 h7 a2 Nd2 a3 Bd3 f2 Bb2 f1N Ne2 g1Q Nc3 c1N Nce4 h2 Nf6 Qb6 Kg5 Ne3 g4 Ne2 Qb1 Nc3 Be2 Nd7 d5+ Ke7 e6 Kd6 e7 Ke5 Bc4 Nc5 e8Q+ Be6 Nde4 Nb7 Qf8 Bf5 Nd2 Bd3 Qb4 Nh6 Qa4 Re8 h8R Ng8 Qa7 Nd1 Qa4 Qgc5 Rh4 Ne3 Qad1 Ne7 Ng8 Ng6 Rh8 Nf8 Qa4 Kd4 Kf6 Re7 g5 Nh7+ Kg7 Ke5 g6 Kf4 Qad1 Nf8 Kf6 Kg3 g7 Re4 Rf1 h1B Rf4 Re5 Rfh4 Bhe4 Qg1+ Ng2 Qd4 Ne3 Qc2 Re7 Re1 a1N Qb1 a2 Re2 Rd7 Re1 Rd6+ Ke7 Nh7 Ke8 Rf6 Kd7 Rf2 Kc8 Re2 Kd7 Na5 Kc8 Qa6+ Kd8 Bf5 Ne7 Ng2 Qe4 Rf2 Bc1 N1b3 Qd4 a1Q g8Q+ Bg6 Qc2 Qab6+ Kd7 Qb1 Qf8 Nb7 Bb2 Na1 Ng8 Qd1 Re6 Qe2 Re7 Qe6+ Ke8 Ne3 Qb1 Qf6 Rd7 Bge4 Rc7 Re2 Kd7 Na5 Kc8 Qe6+ Kd8 Nb7#
1n4qb/1B2n1R1/3n1Q1p/1R1n1p1n/QP6/R4nr1/1NBNB1Pr/n1K4k w - - 0 1 legal: proof: f4 b5 d4 g5 a4 gxf4 axb5 c5 h3 cxd4 Nf3 e5 Nh2 f3 Kd2 f2 Nf3 Bb7 Ng1 Be4 Qe1 Bf5 Qd1 Bg4 hxg4 Qc8 Kd3 Qc7 Bf4 exf4 Kd2 Qd8 b4 Ke7 c4 Kd6 e4 Ke5 b6 a5 c5 f5 c6 d5 g5 a4 g6 a3 g7 f3 b7 Kf4 c7 Kg3 c8R d3 e5 a2 e6 d4 e7 Ra3 e8B Ne7 g8B Bg7 Be2 f1N+ Kc1 d2+ Kb2 f2 Rc1 d3+ Nc3 Nh2 Bb5 f1N Be6 Nf3 Bb3 Qg8 Bc2 Kf2 Be8 Ng3 Bc6 Nh5 Rh4 Kg3 Rg4+ Kh2 Bd5 Bd4 Rg7 Kh1 Bc6 Ra6 Bd5 Rg6 Be4 Rg3 Bc6 Nd7 b8Q Be5 Qf8 Nb8 Qf6 Bd4 Rab1 a1N Bb7 Be5 Ka3 Bd4 Rb3 Be5 Kb2 Bd4 Qf1 d1N+ Kb1 d2 Na4 Be5 Ra3 Ne3 Nb2 d1N Qe1 Nf2 Qd1 Ne4 Qd7 Nb3 Qa4 N3d5 Re1 Na1 Kc1 Nd6 Rd1 Ndf4 Rd5 Bd4 Rb5 Nfd5 Qb3 Rh3 Qa2 h6 Qb3 Rh2 Qa4 Bc3 Nh3 Be5 Ng5 Rh7 Ne4 Bd4 Rf7 Rg7 Nd2 Rg3 Rg7 Bc5 Qg6 Qf8 Rf7 Bd4 Rh7 Bh8 Qf6 Qd8 Rg7 Qg8
2q2b1n/3nN2k/Q1QP3q/rN1BbR1N/R1b2np1/5bq1/RP3p2/2K4B w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Bh3 f4 Bg2 Qd5 Bf1 Qd8 d3 a5 Bd2 h6 Bb4 Ra6 Be7 Rg6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kd2 Kf7 h4 c5 e4 a4 f6 Kg6 f7 f2 b6 a3 d4 f3 h5+ Kh7 d5 a2 h6 g4 d6 g5 e5 g3 e6 g4 b7 c3+ Kc1 c4 e7 c2 e8B g2 Bb5 Nd7 b8Q Ne7 Ne2 g1Q Qe1 Bb7 Ng3 Ng6 Na3 Qc8 Nh5 Qg3 Bg2 f1B Qc3 f2 Qa7 Bf3 Bc6 Rg8 Qa4 Nh8 Bd5 Rg5 Nb5 Re5 Qa6 Rg5 Rb1 a1Q Rh3 Qa5 Ra1 Qad8 Bh1 Qf6 Ra4 Rf5 Kd2 c1B+ Kc2 Be3 Kb1 Bc5 Kc1 Bd4 Qc2 c3 Qe4 Bg7 f8R Be5 Qc4 c2 Qcc6 Qg6 Ra2 Rg5 Rf5 Bf8 Ra4 Qg7 Ra2 Bc4 Ra4 Kg6 h7 Qh6 Ra2 Nf7 h8N+ Kh7 Ng6 Nh8 Kd2 c1N Ne7 Nd3 Kc2 Nf4 Kc1 Bd1 Ra4 Qh2 Rha3 Qg3 Ra2 Bf3 Bf7 Bc3 Rf6 Rc5 Rf5 Bd4 Bd5 Be5 Na3 Ra5 Nb5 Qb7 Be4 Qc7 Bd5 Qc8
1B2bR2/1K4k1/rpP2N1p/4rqP1/nq2Rr1Q/1b6/2b3r1/BQ1B1NRq w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Na3 f2+ Kd2 axb6 Nb1 b5 Bh3 b4 Bg2 Nf6 Bf1 Ng8 Ba3 g5 Bb2 f4 Bc1 f3 Qe1 Nc6 Qd1 Bd6 h3 Bf4+ gxf4 Ne5 h4 g4 Nh3 Nf7 Ng1 Ng5 hxg5 Qb6 Rh6 Qc7 Rh1 Qd8 Kd3 Kf7 Kc4 d5+ Kb5 d3 c4 g3 e4 b6 Kc6 g2 a4 b3 c5 d2 e5 b2 e6+ Kg7 a5 d4 f5 d3 a6 h6 a7 Qf8 f6+ Kh7 e7 Kg6 e8R Bd7+ Kb7 Ne7 c6 Nd5 f7 Qb4 f8B Nc3 Bg7 Na4 Nc3 b1B Nge2 g1R Rh4 Bc2 Rhe4 Rg2 Rf8 Be8 Nd5 Kh7 Qe1 d1Q Bf4 d2 Ng3 Qc1 Rb1 d1B Be2 f1R Bb8 f2 Ba1 Bb3 Bg4 Bdc2 Nf6+ Kg7 Bd1 Qf4 Rc1 Qf5 Rb1 Rh1 Qg1 Rh4 Nf1 Rf4 Qh1 Rg8 Qh4 Rh8 Ng3 f1Q Rc1 Qf2 Nf1 Qg1 Nh2 Rh7 Bh5 Qh1 Rg1 Nc3 Bd1 Kg6+ Bc7 Rd7 Nf1 Rd5 Bb8 Re5 Bc7 Rc8 a8Q Kg7 Qa2 Na4 Qb1 Ra8 Bb8 Ra6
q4B2/7p/q2nnRN1/qbkq1P1N/2r1b3/3P1RQ1/B1b3pB/K1QRn3 w - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 f4 dxc4 b3 a5 b4 axb4 h4 b5 g5 Ra6 f5 Rf6 gxf6 g5 Kf2 g4 Ke2 Bh6 Ke1 Bg5 hxg5 Qd7 Nf3 Qd5 Ng1 Qd8 a4 Kd7 f7 Kd6 f8B c5 a5 e3 a6 b3 a7 b2 a8R g3 g6 e2 g7 g2 R8a5 c3 Qa4 b4 Nh3 c4 Qe8 b3 Ra8 c2 R8a2 c3 Rh2 Nf6 g8Q Ba6 Qd7+ Kc5 Ra3 Bb5 Qg3 Ne8 Qc8+ Nc6 Qe6 Qd5 Qf7 Nd6 Bg7 e5 Nf4 e4 Nh5 Rc8 Bf8 Nd4 Rh4 Rc6 Qc7 Ne6 Qc8 Rc7 Rf4 Rc6 Ra6 Rc7 Na3 b1B Rf3 b2 Nc4 Qa8 Kf2 e1N Ne5 Qd5 Bc4 e3+ Kg1 e2 Kf2 Kb4 Ba2 Rc4 Ke3 Qa8 Qd8 Kc5 Qc7+ Kb4 Qa7 Nd3 Qf4 Nec5 Qg7 Ne8 Ng3 Qd5 Rg6 Nd6 Nh5 Ne6 Bb3 Kc5 Rf6 Qa8 Qgg5 Qd5 Ng6 Qa8 Qfg3 Qd5 Qf2 e1Q+ Qe2 Qa8 Qf4 Qd1 Qf2 Ne1 Qh6 Ba2 Qg5 b1B Bb2 c1Q Qf4 c2 Be5 Qc6 Qg5 Qa3 Bh2 c1Q Qfg3 Qaa8 Qh6 Nc2+ Kd3 Qca3 Qhf4 Qca6 Qe3+ Rd4+ Kc3 Q3a5+ Kb2 Ne1 Qeg5 Be4 d3 Bb1 Ba2 Qda4 Qd2 Qc4 Qdf4 Bc2 Rd1 Qb3+ Ka1 Qbd5 Qc1 Rc4
1rr3R1/2qkP2r/q3p1n1/R1K5/b2pPb2/B2NBq2/R1QN3b/Q1q1N3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 e3 gxh4 c3 b5 axb5 d3 f4 e6 f5 Nc6 f6 Nce7 Be2 Bh6 Bf1 Kf8 fxe7+ Kg7 Be2 Kf6 Bf3 Bf8 Bd5 Qa5 Bb3 Qd8 Bc2 dxc2 Kd2 d5 Kd3 h5 Kd4 a5 b4 a4 g4 a3 c4 a2 b6 h3 b5 h2 c5 h4 c6 h3 e4 Rb8 c7 Bd7 c8Q Nh6 b7 Nf5+ Kc5 Qc7+ Kb4 Bh6 g5+ Ke5 b6 Kd6 g6 Nh4 g7 f5 g8N f4 Nf3 Bc6 Be3 c1Q Nbd2 Ng6 Ne1 f3 Nf6 f2 Nd7 f1Q Nc5 Qa6 Ncd3 Bf4 Qc2 Rh7 Qh8 Kd7 Kc5 Rc8 Rf1 h1R b8B h2 b7 Rg1 Qf6 h1Q Rf2 Qf3 Ba7 Rgh1 b8R Rhh8 Rg2 R1h7 Rb5 Rb8 Ra5 Rhc8 Rg5 Ne5 Rg8 Ng6 Rb1 a1B Rb2 Bh2 Rba2 Bae5 Bb6 Bef4 Qa1 Qcb7 Bc7 d4 Be5 Qc7 Bd6 Qab6+ Kc4 Qba7 Ba3 Qa6+ Kc5 Ba4+
rn2nb1k/p6q/P1N1n1Pp/QQq3r1/1Q1N2R1/4Bn2/qBr5/1B1RK3 w - - 0 1 legal: proof: c4 d5 f4 e5 b3 exf4 b4 c5 bxc5 dxc4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qc8 Rh3 Qc7 Rh1 Qd8 d4 b5 e4 f5 a4 Kf7 g5 Kg7 c6 c3 e5 c2 g6 f4 d5 f3 e6 b4 c7 b3 c8Q b2 a5 h6 d6 Nf6 d7 Nd5 e7 Nf4 e8Q Rh7 a6 Qc7 d8B Ne6 Bdg5 Kh8 Ne2 g1N Bge3 g2 Nbc3 b1Q Qd5 Qa2 Nb5 Qb7 Rb1 Rc7 Nbd4 Rc4 Qdc5 Qh7 Qa5 Rc6 Bb2 c1Q+ Kf2 Qc2 Rh4 Qc5 Ke1 Rc7 Rg4 f2+ Kd1 Nf3 Qeb5 g1R Qcb7 Rg3 Bh3 f1N Nc6+ Rg7 Ra1 N1h2 Ned4 Rc7 Bf1 Rg2 Bd3 Rc2 Be4 Rd7 Qbb4 Rd5 Q7b5 Rg5 Bf5 Rg2 Bb1 Rc2 Rg1 Ng4 Rg3 Ng1 Ke1 Nf6 Rg2 Ne8 Rg4 Rg2 Be4 Rc2 Rd1 Rc4 Bb1 Nf3+ Kf2 Rc2+ Kf1 Ng1 Ke1 Nf3+
1R1n3R/1Br2q2/4pNB1/rQQ1P2r/1N6/1Pr4b/p1QnKRr1/3r2nk w - - 0 1 legal: proof: g4 c5 d4 cxd4 g5 a5 g6 b5 Nd2 b4 Nb1 b3 axb3 fxg6 Nf3 g5 Ng1 g4 Na3 h5 Bh6 a4 Nc4 h4 Nd2 a3 Bf4 a2 Nb1 e6 Bg3 Ba3 bxa3 hxg3 h4 Ke7 f4 Kd6 c4 g5 e4 g2 f5 Ke5 c5 Kf4 h5 Kg3 f6 d5 a4 d3 a5 d4 h6 d2+ Ke2 d3+ Ke3 Qe8 f7 Bb7 f8R Nc6 h7 Qf7 a6 Nf6 a7 Nd8 e5 Ne4 Nh3 g1N c6 Nf3 Be2 Kg2 c7 g3 c8Q g4 Qdc2 d1R Ng5 d2 Q8c5 Rc1 Nc3 d1R Nd5 Ned2 Bd3 Ba6 Bg6 Bf1 Rh4 Kg1 Rh5 g2 Ne4 g3 Rf5 Kh1 Nef6 g1R Nb4 Bg2 Ke2 Bh3 Re8 g2 Rg8 Rc8 a8B Rc7 Bb7 Rgf1 Rh5 g1R Rf8 Rg8 h8Q Rg5 Rb1 Rfg1 Rb2 Rf5 Rh7 Rh5 Qg7 Rg4 Rh8 Rd4 Qh7 Rd5 Q2c4 Rc3 Q4b5 Rd6 Rc2 Ra6 Re8 Ra5 Rf8 Nc6 Rb8 Nd8 Rc1 Rg1 Rf1 Rg7 Rf2 Rd1 Qh6 Rg8 Qhe3 Rg7 Qed3 Rg8 Qc2 Rg7 Bh7 Rg2 Bg6 Ng1+
2r2BNb/NPB2K2/2rPp2R/Q3Q3/p2r4/1NR1r1bq/1r2krn1/1b1R4 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 h5 g4 hxg4 e4 f5 e5 b5 axb5 Rh4 Bd3 Rh8 Be4 fxe4 f5 Nd7 Qf3 Nh6 Qd1 Nf6 exf6 Ng8 Ke2 Kf7 Ke3 a5 Kf4 g5+ Ke5 c5 h4 c3 b4 g3 d4 e3 b6 g2 b5 e2 h5 e1R+ Be3 a4 h6 g4 h7 c4 d5 c2 d6 c1B b7 g3 b8R c3 b6 c2 b7 Qd7 Qd3 Nh6 Qa6 Bg7 Rh2 Ng4+ Kd5 Rf8 Nc3 Bh8 Bc5 Bf4 Nb5 c1R Rh6 Re3 Nf3 g1R Bb6 g2 Na7 Rgd1+ Nd2 g1R Bc7 Bg3 Qa5 Rg2 Rb1 Rc4 Ra1 Rdc1 Nb3 Rb2 Rb1 Rce4 Ra1 Rc6 Rd1 Bg7 h8Q Rf4 Rg6 Rff2 Qh5 Bh8 Qg5 Re8 Rh6 Re4 Qe3 Rb4 Qf4 Ne3+ Ke5 Ng2 Kd5 Kf8 f7 Kg7 f8N Rd4+ Ke5 Kf7+ f6 Qh3 Ng6 Bf5 Rd8 Bb1 Rc8 e6 Ne7 Rf8 Ng8 Rb8 Rh7+ Kg6 Rh4 Rf7 Rh7 Rg7 f7 Ra8 f8B Rb8 Nh6 Kh5 Kf6+ Rg5+ Kf7 Re5 Qf6 Ra8 Ng8+ Kg4 Rh6 Re3 Ke7 Rb8 Qfe5 Kf3 Kf7 Ra6 Bd8 Rb6 Rc3 Rc8 Bc7 Rc6 Qf5+ Ke2 Qf6 Bf5 Qfe5 Bb1+
1Q1q2Nk/4r2r/1Q2p3/2R1np2/Bq2r3/BR2nPrN/3PK3/r2bNQr1 w - - 0 1 legal: proof: b4 c5 a4 d5 e4 b5 axb5 cxb4 Qf3 dxe4 Qg4 Bd7 Qd1 Bc8 h4 g5 Bb2 gxh4 Bc1 e6 Bd3 a6 Bf1 Bc5 b6 Nc6 Ra4 Bd6 Ra5 Bb8 Ra1 Ba7 bxa7 Nb8 c4 Kf8 g4 Kg7 f3 f5 g5 h5 g6 b3 c5 b2 c6 a5 c7 e3 Ra3 a4 Bh3 e2 Rb3 a3 Rb5 a2 Qa4 a1R Ra5 Rh7 Rh2 Nh6 Bf1 h3 Na3 b1Q Qc6 h4 Qa4 Kh8 Qf4 Re7 Qe3 Ng4 Qb6 Ba6 c8Q Ne3 Rc5 Nd7 Rh1 h2 Qcb8 h3 Nc2 Qb4 Kf2 e1R Bb5 Ne5 Ba3 Bb7 Ba4 Be4 g7+ Kh7 g8N Kh8 Ne2 Rg1 Ne1 Bc2 Nf4 Rg3 Rg1 h1R Ke2 h2 Rf1 Rhg1 Nh3 h1R Kf2 Rgg7 Ke2 R1g6 Rg1 Rh7 Rg4 Rg1 Re4 Nd5 Re3 R6g3 Rb3 Ne3 Qa6 Be4 Qbb6 Bc2 Qc4 Rc8 a8Q Rcc7 Qcb5 Rh4 Qab8 Re4 Kf2 Rh7 Qf1 Rce7 Ke2 Bd1+
R1B1n3/pB3rr1/r3n3/n2r2QR/4p3/RQ1PKP2/bN2Nnr1/k2B1q2 w - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Ra5 g5 Qd1 g4 Ra1 g3 h4 Nd7 b3 Bh6 f3 Kf7 Ke2 Nc5 Bb2 Nd3 Bd4 Ne5 Bf2 gxf2 g4 Bg5 hxg5 Ke8 g6 Nc6 g5 Nb8 b4 Kd7 b6 Kc6 b5+ Kc5 g7 Kb4 b7 c5 g6 e5 b6 h5 Bg2 f1R Ra6 e3 Ra5 h4 Rh3 c3 Ra6 e4 Rh1 c2 Qe1 Kb3 Qf2 Kb2 Na3 c1R Ra5 c4 Nh3 c3 Rg1 c2 Rh1 Rfd1 Ra4 Nf6 g8B Ne8 g7 Be6 Nb1 Rh6 Ra5 Nd7 b8R Ba2 b7 Ka1 Nc3 Ra6 Na4 Nc5 Ng1 h3 Qh4 h2 Bh3 Ne6 Nb2 Qd5 Ra3 Qb5+ Nc4 Rb1 Qg5 Rb2 Rd8 Rc8 b8Q Rc7 Bf7 Rd7 g8B Rd5 Qb7 Rdb1 Ra8 c1N+ Kd1 Nb3+ Ke2 Na5 Qb6 Nc5 Bc8 Ne6 Bb7 Rc2 Bh7 Rd1 Bf5 Rd7 Bg8 Rf7 Bg4 Qb1 Nb2 Rcc7 Qb3 Rg7 Nh3 Rcf7 Nf4 Qc1 Rf1 h1N d3 Nf2 Rh1 Rg1 Rh6 Rg2 Rh5 Rd6 Bh3 Rd5 Bf5 N6c7 Bfc8 Ne6 Nh3 Qh1 Ng1 Qh3 Ke1 e2 Kd2 e1R Ne2 Rc1 Ke3 Rc6 Qf6 Rf8 Qg5 Ra6 Bf7 Nf6 Be8 Rff7 Ba4 Qh1 Qc4 Qh3 Bd1 Ne8 Qc2 Qh1 Qb3 Qf1
N1nQn1B1/Q3r2r/R4Qr1/PBbprPK1/1r5r/2B2pN1/1b6/k1n4R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 d4 g5 d5 gxh4 d6 cxd6 Qd2 d5 Qd1 d4 f3 e5 Rh2 b6 Rh3 Qg5 Rh1 f4 Bb2 Bb7 Bc1 Qf5 exf5 e4 Be2 e3 Bf1 Be4 fxe4 Ra5 Rh3 Ra7 Rh1 Ra8 Ke2 Ke7 Kf3 Kd6 Kg4 Ke5 c4 h5+ Kg5 d5 g4 e2 a4 e1B a5 b5 c5 h3 c6 h4 c7 f3 c8B b3 Ra3 h2 Qd2 b2 Bc4 b4 Nc3 b1R Bd7 b3 Nd1 b2 Qe3 h3 Be2 d3 Qf4+ Kd4 Bc6 d2 Rb3 Nf6 Qc7 Bc5 e5 Rh6 e6 Ra7 e7 Ne8 Ne3 d1N Bd7 Nf2 Nc4 Nd3 Be6 Nd7 Nb6 Bc3 Na8 Nb6 Bg8 Nc8 Bd2 Re1 Rb6 b1R Ra6 Nc1 Bb5 Rb4 Qc6 Rh7 Qf6+ Re5 Be1 Bb2 Ne2+ Ke4 Ng3+ Kd4 Bd7 Kd3 Bc3 Kc2 Bc6 Kb1 Bb5 Nc7 e8Q Ka1 Qee6 Ne8 Qb6 Rae7 Qa7 Rh4 Kg6 Rhh7 g5 Rhh4 Rf1 h1R Rd1 Rh2 Rh1 Rhe4 Kh6 Red4 g6 Rh4+ Kg5 Rh6 Re1 Rh1 g7 h2 Rd6 Rg1 Rb6 h1R Ra6 R1h4 Rd1 Rg2 Rh1 Rd2 Be6 Rde2 g8Q Reh7 Qgf8 R2e3 Bg8 Re2 Qd8 Ree7 Qf7 R2e5 Qf6 Rg6+
2n2R1N/1n3bR1/2P4Q/1NnnB1rN/nQ4Pn/rBp2kp1/B5b1/1bK5 w - - 0 1 illegal: No proof kernel
R1Qqq2r/5n1B/QN6/1pqb1b2/1Rn4N/1b2PpB1/4NP2/q2Kb1Bk w - - 0 1 illegal: No possible last move
1QBR3b/1N1P1N2/5qbB/3bq3/1n1PR1q1/bK1n2QN/3p1pR1/3kq2r w - - 0 1 legal: proof: d4 a5 h4 d5 b4 axb4 c3 g5 c4 gxh4 cxd5 e5 Bd2 e4 Bh6 Bg4 Bc1 Bc8 f4 b5 f5 Ba6 Qd3 exd3 e4 Bc8 e5 Ra3 Bf4 Ra6 Bc1 Re6 fxe6 Qg5 Bd2 Qf6 Bc1 Qd8 Kd1 Ke7 a4 f5 g4 c5 a5 h5 g5 c4 g6 f4 g7 b3 a6 b4 a7 d2 a8R h3 Bb2 h2 Na3 f3 Bc3 b2 Kc2 b1B+ Kb2 h4 Nc2 b3 Bd3 h3 Bh7 f2 Bg6 Nf6 g8Q Bg7 Ka3 b2 Qh7 Nbd7 Nf3 Bb7 Ng5 Nc5 Bb4 c3 Ne1 c2 Nf7 c1B Rg1 h1Q Qg8 h2 Rg2 Bc6 Nd3 Qg1 Nf4 h1Q Bf5 Qhh2 Nh3 Rh5 Rc8 Bh8 Qg3 Qe1 Bg4 Bg6 Rb8 Qd6 Rd8 Nd3 Kb3 Qe2 Bf5 Qg4 Ra6 Ne8 Ra5 Nc7 Rc5 Na6 Rc3 Nf4 Re3 Nd3 Re4 b1Q+ Kc4 Bb2 Kb3 Qe1 Ba3 Be8 Bc5 Ba3 Bb4 Kf8 e7+ Kg7 e6 Bc6 e8Q Kf6 e7 Qdf4 Bc5 Nab4 d6 Rh7 Bc8 Qff5 Qe3 Qhe5 d7 Qff3 Qf8 Kf5 e8N Qff4 Qg3 Rh4 Nhg5 Rh1 Nh3 Qfg5 Qd6 Qgf6 Qb8 Qc7 Re6 Qce5 Bf8 Ke4 Bh6 Rh2 Qh4 Kf3 Ned6 Ke2 Qg3 Rh1 Nb7 Kd1 Ree8 Qa5 Re3 Qae5 Re4 Bd5+
1Qnr4/n4rr1/BrB2NR1/1N2Bn1p/1PR5/P3n2R/1pb2KQr/1k3b2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 f4 e5 a3 exf4 Rh3 g5 Rh1 gxh4 Nc3 b5 Be3 a5 Rh3 b4 Rh1 a4 Nb1 Qc7 Bd2 Qa7 Be3 b3 Bc1 Bb4+ axb4 a3 Bd2 a2 Bc1 Qa3 bxa3 Ra5 Rh3 Ra6 Rh1 Ra8 g4 Ke7 c4 Kd6 e4 Ke5 g5 h5 c5 f5 g6 d5 g7 d3 c6 Kd4 e5 d2+ Ke2 b2 e6 f3+ Kf2 h3 c7 h2 e7 f4 e8R Ra6 Re2 Kd3 Bh3 d4 Kf1 f2 Re8 Ne7 g8Q Nbc6 Qgg4 Rb6 Qg7 Bf5 c8B Na7 Qe1 Kc2 Qg2 d1N Qe3 d3 Qe5 d2 Ba6 Nec8 Re6 Rd8 Rg6 Ne3+ Ke2 f1N Qb8 d1R Nd2 f3+ Kf2 Ng3 Ne2 Rg1 Nc3 Bd3 Rb1 a1R Nde4 Ngf5 Nf6 Be4 Bd2 Bd3 Re1 Rd1 Nb5 Kb1 Rf1 Bc2 Bc3 Rd7 Re1 Rf7 Re2 Rdd7 Be5 Rgd1 Rd2 Rg7 Rd4 Rdf7 Rg1 h1R Rc4 Rh2 Rh1 Nfe7 Bd7 N7f5 Rg1 Nfe7 Re1 N7f5 Re2 Rd2 Bc6 Rd8 Rd2 Rc7 Rd3 Rcf7 Ke1 f2+ Ke2 f1B+ Kf2 Nd5 Rh3 Nde3
2b1b1r1/1Rn1NB2/R2b1Q2/2np2PP/1n4Nk/3nrpR1/2B1N2K/n5Qb w - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 Bd2 h4 Be3 Qd7 Bf2 gxf4 axb5 c6 Bg3 hxg3 e4 c5 e5 Qd6 exd6 cxd4 h4 e5 b4 f5 c4 Kf7 b6 Kf6 b5 a5 b7 g2 Kf2 d3 d7 a4 d8R f3 Kg3 f2 c5 a3 c6 e4 h5 Kg5 b6 d2 c7 a2 Kh2 e3 Rd7 f4 Ba6 f1B Qf3 d1B Bd3 e2 Bc2 e1N Rf7 Nd3 Ne2 g1N Nbc3 Kh4 g5 Nb4 Ne4 Bd6 Nf2 Nf6 Ng4 Nbd7 b8N Ra3 b7 Rg8 Nc6 Re3 b8Q Ne8 Qb6 Nh3 Ne7 Nf2 Rg1 Nc5 Rg3 Nfd3 Qh1 f3 Qg1 Bg2 Qc6 Ba6 c8B Bh1 Be6 Nc7 Rg7 Bc8 Bf7 Be5 Qf6 Bd6 Rb1 a1N Rg6 Na2 Rb7 Nab4 Bb1 Ba4 Bc2 Bf4 Qc3 Bb5 Ra6 Be8 Qf6 Bd6
3N4/Rr1rkbb1/1p2Nnn1/1K1Qp1BR/2n1nP2/b2R3B/3Q1bP1/3r3B w - - 0 1 illegal: Other
BQ1N3r/N2P1K1n/1P2n2b/1R3p2/B1r1R3/3N2rb/krB2p1n/n2b2Q1 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 h4 g3 b3 Bg7 h5 Qf6 Bb2 Qh4 Bd4 Qg5 Bf2 Qg6 hxg6 Bf6 Qc2 gxf2+ Kd1 Kf8 g4 Ke8 g5 Bc3 Kc1 Bb4 Qd1 Bf8 Kb2 Kd7 Kc3 Kd6 Kd4 a5 e4 h5 e5+ Ke6 b4 h4 g7 c3 b6 f3 b5 f6 b7 h3 b6 c2 g6 c1R Na3 h2 Bg2 f1N Rb1 f2 Nh3 a4 Rb5 Nd7 b8N Nc5 Nc6 Rb1 d3 Rb2 Nf4+ Kd7 Kd5 Ne6 Nd8 c5 d4 c4 Nd3 c3 Rg1 h1B Qb1 Nh2 Re1 c2 Re4 Ra5 Qg1 c1R Bf3 Ra7 Bd1 Bf3 Bc2 Nh6 g8B Bd1 g7 Nf7 Bh7 Nfg5 g8Q Bh6 Bg6 Ra6 Be8+ Ke7 Bc6 Nh7 Bb7 Ra7 Ba8 Rc7 Q8g3 Rc4 Qg8 Rcb1 Q8g3 Rb3 Qg8 R1b2 Q8g3 Nc5 e6 Bd7 Qb8 Rbc3 Ne1 Rg3 Nd3 Bc8 Ra5 Bd7 Nb5 a3 Na7 a2 Rb5 a1N Re3 Ke8 e7 Bh3 Re4 f5 Kd6 Ne6 d5 Neg5 Ke5 Kd7 d6 Ne6 Nc8 Nhf8 Kf6 Nh7+ Kf7 Nc5 Nb7 Kc6 e8B+ Kd5 Na7 Be3 Re6 Bh6 Nd8+ Kd4 Bec6 Kc3 Re4 Ne6 d7 Ra2 Nb4 Kb2 Nd3+ Ka3 Rd5 Rb2 B6a4 Ka2 Ra5 Bd2 Rb5 Bh6
2qN1Q2/1b3R1p/Np1RB2b/BRPqP1q1/3b4/Kqn1Q1Q1/2r5/kq5q w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Bf4 g5 Be3 f4 Bc1 Nc6 h3 Nce7 h4 Nf5 gxf5 g4 Ba3 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Qc7 Kd2 Qa5 Ke1 Qd8 Kd2 Kf7 e4 d5 a4 f2 c4 b3 a5 g3 f6 Ke6 g6 Ke5 f7 g2 a6 b2 Kc2 d3+ Kb3 Kd4 e5 f3 a7 d2 a8R b6 g7 Ne7 g8Q Bb7 Qg7 Qc8 Qe1 d1Q+ Ka2 Qd2 Ra7 Qg5 Nc3 b1Q+ Ka3 Rg8 Be2 f1Q c5 f2 Nh3 g1B Bg4 Qc4 Bd2 f1Q Be6 Qfd3 Qg6 Bh6 f8Q Qe4 Rh2 Qh1 Na2 Rg7 Qg3 Rf7 Qc2 Rf2 Qc1 Re2 Be1 Rc2 Nb4 Be3 Rd2+ Kc3 Na6 d4 Ra2 d3 Nf4 Bd4 Rb2 Nd5 Rb5 Nb4 Bh3 Na2 Ne6 Qhd5 Nd8 Qh1 Bf2 Qhd5 Rd1 Qh1 Be3 d2 Be6 Qhd5 Rf1 d1Q Rf7 Q1h1 Rd7 Kd3 Rd6 Nc3 Qcg1 Ba8 Rf7 Bb7 Bf2+ Kd2 Be1+ Kc1 Ra5 Qbb5 Q1f2 Kb1 Qfe3 Ka1 Bd2 Qbb1 Rb5 Na2 Bb4 Nc3 Ba5 Qcb3+
2n3N1/Bp2PRn1/q1n1NK1Q/n3Nq2/6p1/kP1q4/r3Qq2/Rq3bQB w - - 0 1 illegal: No possible last move, all moves rejected
rR2NnKQ/R2P2q1/1R1pN1q1/1q2Qn1B/r4qNq/k4p2/5qPB/7n w - - 0 1 illegal: No possible last move, all moves rejected
b3n1N1/R2B1nkP/1b3nb1/2RB4/q1n1p1PK/Q3n3/pq1RN3/b1B4Q w - - 0 1 legal: proof: d4 b5 e4 f5 g4 fxe4 a4 bxa4 h3 h5 d5 a5 d6 g5 Rh2 h4 Rh1 Rh5 Bb5 cxd6 Bf1 d5 Ke2 d4 gxh5 g4 Kd2 g3 Ke1 Ra6 Qe2 Rg6 Qd1 Rg4 hxg4 Bb7 Bg2 Ba6 Bf1 Bc8 b4 Kf7 c4 e5 f4 d5 b5 g2 Kf2 h3 Kg3 h2 h6 d3 f5 e3 b6 a3 c5 e2 h7 e1Q+ Kh3 a4 c6 d4 b7 d2 f6 d3 c7 a2 Nc3 a3 Qf3 d1N Qf2 d2 Nd5 Bf5 c8B Na6 b8Q Qe8 Qd6 Nc7 Nb4 Qe2 Qdb6 Ne3 Bd7 d1N Qc5 Bg6 Nd5 Qb2 Kg3 Nc4 Qf3 Nde3 Ne2 g1N Bg2 Nh3 Kh4 Ng5 Rd1 h1B Ne7 Qa8 Rd3 Qa4 Rd2 Ne8 Qfc6 Bh6 Bd5+ Kf8 f7 Ngf6 Qa7 Kg7 f8R Nf7 Ng8 Bf4 Qaa6 Bh2 Qa5 Bg1 Qc3 Nc2 Qh3 Bb6 Qc5 Bf3 Qh1 N2e3 Qb4 Nc7 Rd8 Nce8 Rc8 Bfe4 Rc5 Bf3 Rb1 a1B Qb3 a2 Qa3 Qbc2 Rbb5 Qb2 Ra5 Bfe4 Ra7 Bg2 B5e6 Ba8 Bd5 e4
Q3NK2/1qQNR2p/R1n4P/Pb3Q2/bbB1nb2/q3p1k1/2q5/B3Nnq1 w - - 0 1 legal: proof: e4 d5 c4 dxe4 b4 e5 f4 e3 b5 a6 Nh3 axb5 Ng1 bxc4 Be2 c3 Bb5+ Qd7 Bf1 Qd8 g3 b5 Qb3 g5 Bc4 f5 Be2 e4 Bf1 Nh6 Qc2 Be7 Qd1 Rf8 g4 Ra6 Bb2 Re6 Bc1 Re5 fxe5 f4 Na3 Bc5 Nb1 Rf5 gxf5 Be7 Ke2 Kf7 a4 c5 h4 c4 d4 b4 a5 b3 e6+ Kf6 d5 Ke5 h5 c2 f6 b2 f7 g4 f8N g3 d6 c3 d7 g2 Qd3 Ng4 Nd2 b1B Bb2 Qc7 d8Q Qb7 Qc7+ Bd6 e7 c1Q e8Q+ Be6 h6 Nc6 Qa8 Bc2 Rb1 Ba4 Ba1 Bc4 Rb6 Qa3 Ra6 Bcb5 Nd7+ Kf5 Nc4 c2 Nf3 c1Q Rh3 g1Q Ne1 Nf6 Rg3 Bb4 Rg7 Bd6 Rf7 Kg4 Re7 Kg3 Qd5 Bb4 Qf5 Bd6 Nd3 Be5 Nd6 Qc4 Ne8 f3+ Ke1 e2 Kd2 f2 Ke3 e1B Be2 Bc3 Ne1 Qcb3 Bc4 Qc2 Qcd8 Bb8 Qc7+ Kh4 Kf4 f1N Bf7 e3 Bc4 Nd4 Ke5 Nc6+ Ke6 Ne4 Kf7 Bb4 Qf2+ Kg4 Kf8 Kh3 Qf5+ Kh4 Qc8 Bf4 Qc7 Kg3
2qRNq1r/3P2B1/2QbB3/2Q1BP1r/1K3pp1/Q1Nk1rb1/1r6/b2q2Rb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 c4 d5 g5 dxc4 g6 hxg6 Bg2 g5 Bf1 g4 Bd3 e5 Be2 Nd7 Bf1 Ne7 Nf3 Nc5 Ng1 f4 f3 Nf5 exf5 e4 Ke2 e3 Ke1 Ne4 fxe4 Rh5 Nc3 Rh4 Nb1 Rh8 d4 Kf7 a4 Kf6 h4 c5 h5 g5 d5 Ke5 a5 b5 d6 b3 d7 g3 a6 e2 Kd2 Kd4 a7 b2 e5 g2 h6 g4 e6 b4 e7 b3 e8Q Bd6 h7 Bb7 Na3 b1R Qe7 b2 Qf7 Qf8 Qb3 e1B+ Kc2 c3 Nb5+ Ke4 Ne2 g1Q Qa3 c4 Nc7 Bg3 Ne8 Qc5 Bd2 Qc8 Rg1 Rd1 Qc5 b1R Qg6 Rb4 Be3 Rd3 Bd4 Rf3 Bg7 Rb8 a8Q Rb2+ Kc1 c2 Kd2 Bd5 Qac6 R8b3 Ra8 Rb6 Qa3 Ra6 Qcc5 c1B+ Kd1 c3 Be5 Rb7 Kc2 Bb2 Qe6 Ba1 Bg2 Qc6 Rd8 Qc8 Bf1 Rb8 Qf6 Bb7 Kb3 c2+ Kb4 c1Q Bg2 Qf1 Nc3+ Kd3 Qg6 Qd1 Bg7 Rf1 Bd5 Rf3 Be6 Raa8 Qb3 Ra2 Qa3 Rh2 Be5 Rh5 Qf6 Rg8 h8B Ba8+ Ka5 Bd5 Bg7 Rgh8 Qg6 Rb2 Qh6 Rbf2 Kb4 Rb2+ Qb3 Re3 Qh7 Rg5 Qh1 Ba8 Qb7 Rgh5 Qc7 Bh1 Qc6 Rd2 Qb2 Rf3 Qa3 Rb2+
2qq2Q1/RnrP1n2/2R3n1/1p4B1/BQ3Nr1/pP1QBKq1/k6r/rNn5 w - - 0 1 legal: proof: f4 d5 e4 g5 h4 gxh4 d4 b5 c4 dxc4 a4 e5 a5 exf4 d5 Bc5 d6 Bb6 axb6 Bd7 Kf2 Bc6 Ke1 Bd5 exd5 Qf6 Kf2 Qg5 Ke1 Qd8 Kf2 Kd7 g4 a5 g5 h5 g6 f5 g7 c5 b7 h3 Nc3 a4 Qd3 a3 Qg3 h2 Na2 c3 Qg4 h4 Be3 c4 Bc1 c2 Nc3 f3 Nce2 c3 Be3 c1Q Qh5 h3 Qg5 f4 Bd2 c2 Qf6 Nh6 g8Q Ra7 Bg2 Na6 b8B Rc7 Nd4 Nf7 Ne6 Rh4 Ng5 Rg4 Ba7 Nc5 Ne2 Nb7 Rf1 h1R Qc3 h2 Ne6 Rg1 Bae3 h1R Qb4 Rh2 Bc3 Rgh1 Bf6 Rg1 Nc3 Rgh1 Bg5 Rg1 Nd1 Rgh1 Ke1 f2+ Ke2 Rg1 Re1 f1N Kf3 Ng3 Nc3 Nf5 Nb1 Ne7 Bf1 Rgh1 Bc4 Ng6 Bb3 Rhg1 Rf1 Qe1 Rf2 c1N Ba4 Rgh1 Rc2 Rhg1 Rc6 Qg3+ Ke4 f3+ Nf4 f2 b3 f1Q Ra2 Qfh3 Rac2 Qh8 Ra6 Qc8 Rcc6 Qf6 Ra7 Qfd8 Qg7 Rgg2 Qgd4 Ra2 Qd3 Ra1 Qe1 Ke8 d7+ Kf8 d6 Kg7 Bh6+ Kf6 Qb4 Qg1 Kf3 Ke5 Bg5 Ngh8 Bh4 Rg5 Nd5 Qg8 d8Q Ng6 d7 Rg4 Qa5 Qh8 Nf4 Qf6 Qf8 Qfd8 Bg5 Qe1 Qf1 Qh4 Bd2 Kd4 Qg8 Qe1 Ne2+ Kd3 Bde3 Qh4 Qb4 Qe1 Re6 Kc2 Nf4 Kb2 Rc6 Ka2 Qd3 Qg3+
B1N3n1/2QP1q2/1Q3P1p/b2b3n/5prB/RB1kn1Nr/K2b3p/1N2r1R1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 f6 e5 fxe5 f4 Nh6 f5 Ng8 Qa4 Bd7 Qe4 Bc8 Qf4 exf4 Kd1 Kd7 Kc2 Kd6 Kb3 Kc5 d4+ Kd6 g4 c5 g5 a5 g6 e5 g7 e4 b6 c4+ Ka2 a4 b4 c3 b7 e3 b5 a3 b6 h3 Bb2 c2 Ne2 c1B Rg1 h2 Ng3 e2 Bg2 Nd7 b8Q+ Qc7 b7 e1R Qa7 h6 b8Q Bb7 Qb6+ Bc6 Qc8 Ndf6 Bc3 Nh5 f6 Qf7 Bh1 Re4 Be1 Bd2 Bf2 Re1 Qcb7 Ne7 g8B Rh7 Q7a7 Rg7 Qaa5 Rc8 Qc3 Rg4 Qc4 Kd7 d6 Bd5 Bf3 Ke6 d7+ Rc6 d8N+ Kd6 Nb7+ Ke6 Ne4 Kf5 Bh4 Rc5 Bh1 Rb5 Bf3 Rb3 Bh1 Rh3 Nbd6+ Kg6 Nc8 Kf5 Bf3 Ba5 Bd1 Bd2 Bb3 Ba5 Qcc7 Bd2 Nf2 Ba5 Nh1 Ke4 Ng3+ Kd3 Ne4 Bd2 Bh7 Ng8 Ng3+ Re4 Bf5 Bfb4 Bd7 Ba5 Bc6 Re1 Ba8 Bg2 d5 Be4 d6 Bd5 Nc3 Re5 Kb1 a2+ Kb2 Re8 d7 Re3 Rab1 a1N Ka2 Nc2 Ra1 Re1 Nb1 Rd1 Kb2 Ne3 Ra3 Rc1 Ka2 Re1
2nK1r2/R5Q1/BN2N2b/2R2p2/P1q1pQ1b/3R3q/2pPB2Q/b2rk1nr w - - 0 1 legal: proof: e4 d5 f4 a5 c4 dxc4 b4 g5 fxg5 axb4 Qh5 Bf5 Qd1 Be6 g4 h6 g6 Nc6 g5 Ra3 g7 Qd5 g6 Qd8 Bb2 Nb8 Bf6 Bd5 exd5 Ra8 Bg5 hxg5 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 h4 Ke4 a4 b5 h5 c5 d6 e5 h6 f5+ Kh5 c3 h7 g4 d7 b3 Ra3 g3 Bg2+ Kd3 Rh2 c2 Rh4 c1B Rg4 c4 Re4 b4 Re2 e4 Bh3 g2 Rf2 c3 Nf3 g1B Ng5 b2 Bg4 b3 Rg2 c2 Nc3 b1Q Ne6 Qc8 Kg5 b2 d8R+ Nd7 Qf3+ Be3+ Qf4 Ne7 g8Q Ra6 g7 Qc4 Ra8 Ne5 Kf6 Nc8 Ra7 Bf2 Rg3+ Nf3 Nd5+ Ke2 Rc3 Ke1 Nb6 Ng1 Rgd3 Bh4+ Kf7 Qa1 Ke8 b1R Be2 Qa3 Qf7 Ra1 g8B Bh6 Qg7 Bb2 Kd7 Rd1 Bf7 Qca2 Rc5 Ba1 Be8 Qd5+ Kc7 Qc4 Bb5 Rf8 h8Q Rf6 Kd8 Qac3 Nd5 Rb6 Ba6 Rbb1 Rd4 Qh3 Nb6 Rb3 Rdd7 Rf3 Rd6 Rf2 Rd3 Rh2 Qg2 Rh1 Qgh2 Nf3 Qg8 Ng1 Qg7 Rf8+
R1q5/1B1r2Qn/4N1n1/pk1Kp1RB/R2n2b1/qp1P4/4rQ1P/QN1b2r1 w - - 0 1 legal: proof: e4 h5 b4 f5 exf5 c5 g4 cxb4 a3 hxg4 Be2 b5 Bc4 b3 Bf1 b2 c4 b4 d3 d6 c5 e6 c6 b3 Be3 Be7 Bc5 dxc5 Qd2 Bg5 Qd1 Bd2+ Ke2 Bb4 axb4 Nf6 Ke1 Ng8 Kd2 g5 Ke3 a5 Ke4 g3 f4 g2 c7 Kd7 f6 Kc6 f7 c4 f8R c3 f5 c2 f6 c1Q f7 g4 Nh3 g1R Qc2+ Kb5 Ra2 g3 Qf2 g2 Ra4 Nd7 Ng5 Ne7 Be2 Ng6 Bh5 Rh7 Re8 Ra7 f8Q Re7 Qg7 Rb7 Rg8 Ndf8 Rh8 Bd7 c8B Nh7 Rg8 Rc7 Bb7 Qc8 Re8 Rc2 Kd4 Re2 Rd8 Q8c7 Ra8 e5+ Kd5 Bg4 Ne6 Qc8 Qd4 Rge1 Rf1 g1N Rf5 Nf3 Rg5 Rg1 Qc3 Kb6 b5 Nd4 Na3 b1B Qa1 Bc2 Nb1 Nh8 Nc5 Kc7 Ne6+ Kd7 b6 Ng6 Ba6 Rf7 b7 Bd1 b8Q Qa3 Qb6 Re7 Bb7 Rf7 Nf4 Re7 Qbf6 Kc7 Ne6+ Kb6 Qf4 Kb5 Qf2 Rd7+
1RQ4n/5k2/3qp1qP/1B2n2b/pB3bBN/2bn1p2/2P1QNrQ/K3R2r w - - 0 1 legal: proof: d4 b5 g4 c5 f4 h5 gxh5 e6 a4 cxd4 axb5 Ke7 e4 Kd6 f5 Kc7 e5 exf5 e6 f4 e7 Kd6 Qe2 Kc7 Qe6 dxe6 Kd1 Kd6 Ke1 Kd7 Kd2 Ke8 h4 a5 b4 f5 h6 g5 b6 f3 h5 d3 Kc3 f4 Kb2 a4 b7 d2 h7 d1N+ Ka2 f2 b5 g4 b6 g3 Bc4 f1Q Bd2 g2 Bb5+ Bd7 Bb4 Bg7 Nc3 Nh6 Nf3 g1B Nh4 f3 Rb1 Bh2 Ne4 Qg1 Nf2 Nc6 b8Q Nf7 b7 Nb2 Ka1 Nd3+ Qe5 Qg6 b8Q Bf4 Qc8 Rg8 Rb2 Nh8 Re1 Kf7 Qe2 Bc3 h6 Rb8 Qc7 Nce5 e8B+ Kf6 Bf7 Be8 Qc8 Qd6 Qc7 Qe4 Bh5 Rg2 Bg4 Bh5 Qc8 Qg6 Qc7 Rg8 Qc8 Nhf7 h8Q+ Rg7 Qhe8 Nh8 Qec6 Rh2 Qc5 Ke7 Qce3 Rh1 Q3d2 Bg3 Qf4 Bh2 Qg3 Kf7 Qg2 Bf4 Qh2 Rg8 Bc4 Qb8 Ba3 Bfd2 Bf5 Qh7 Be7 Rg2 Bg4 Qc7 Ba6 Qg6 Ba3 Ba5 Rb8 Qd6 Bb5 Bf4 Bc5 Bad2 Bb4 Bc3+
2B2Rrr/3p3k/n1bB1r2/3q2qp/2Q1R2p/n3NNRb/PP4BK/Q5b1 w - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 d4 cxd4 c4 gxh4 Qa4 b5 Qxa7 bxc4 g4 Kf7 f4 Kg7 Kf2 h5 Kg2 e5 f6+ Kh7 f7 c3 f5 c2 g5 e4 f6 d3 Rh3 d2 Qc5 d1B Bf4 c1R Nf3 e3 Nc3 e2 Rg3 e1Q Bd6 Qe6 Nd5 Na6 Ne3 Nh6 Qc4 Qd5 Kh2 Nf5 Bg2 Nd4 Rb1 Bg7 f8R Bb7 f7 Bc6 Ra1 Nc2 g6+ Kh6 Rb1 Bd4 g7 Q8g5 g8B Na3 Bh7 Bb3 Bd3 Rf1 Re1 Bc2 Be2 Bf5 Bd3 Bh3 Be4 Qc5 Bd5 Kh7 Re2 Ba4 Bb7 Bc6 Bc8 Rg8 Nd1 Bf2 Re4 Qb5 Ne3 Rh8 Rd8 Qbc5 f8Q Qcd5 Qf6 Rg8 Rf8 Rb8 Qfc3 Ra8 Qc1 Rh8 Bb7 Rd8 Qa1 Rc8 Rf5 Rcg8 Rf8 Be1 Nd2 Rf6 Nf3 Bf2 Bc8 Bg1+
4rB2/2NRQ3/2k1p2n/1rNb4/5Ppn/Bb1PB2K/1qbRrQp1/1b1R4 w - - 0 1 illegal: No possible last move, all moves rejected
8/2RK2Pb/1bP1q2B/1nN2b2/1r1Rnr1p/4BrQN/2Qp1pb1/2B2k1N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 f5 g4 a5 e4+ d3 g6 d5 b6 h5 g7 h4 b7 d4 g5 f3 g6 f2 b5 a4 b6 a3 Nd2+ Kc3 Nh3 a2 Nb3 f4 Nc5 d2 Bc4 f1B Be6 Na6 b8B d3 b7 f3 Ba7 f2 b8B Nf6 g8Q Qa5 Bb6 Bh6 Kd6 Bg2 e5 Be3 g7 Kd4 c4 Nc7 Qc2 d1B Rg1 Bdf3 Rd1 Be4 B8a7 Bd7 Qb8 Rf8 Rb1 a1R Rb3 Qe1 Rc3 Nb5+ Ke7 Bdc6 Bc7 Qg1 Bf7 Na3 e6 Bh6 Bb2 Ke3 Na4+ Kf3 c5 Bd7 Bf4 Bh7 Kd6 Bg5 e7 Rb1 e8N Nb5+ Ke7 Bg4 Be6 Qh1 Bd2 Ke2 Nd6 Be3 Nf5 Qe1 Rc4 Kf1 c6 Bd4 Bh6 Rf7+ Kd8 Ne4 Bb6 Rf6 Rd2 Qc1 Ba3 Qb2 Ng3+ Ke1 Ke8 Ra6 Qc7 Qa2 Bc1 Rb4 Nh1 Rf5 Qh2 Rf4 Qg3 Kf1 Kd8 Bgf5 Kc8 Bf6 Bd4 Bd8 Nc5 Rb2 Ra4 Bb6 Ra3 Rb4 Kd7 Qb2 Ra1 Ra3 Ra2 Rab3 Ra7 Qa2 Rc7 Rc3 Re2 Ra3 Re3 d2 Rc3 Ba7 Rc4 Raf3 Be3 Bb6 Rd4 Qxe6+
2nnb2q/3q3Q/BBn5/2Rrbpk1/PQ4p1/N1P2Q1K/pn2r1R1/1R2N3 w - - 0 1 illegal: No possible last move, all moves rejected
1kN1K3/2p4R/2bb2Q1/1B3RqB/PQ1Nn1Pq/4p1n1/1pNrr3/R2rr3 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 g4 d5 Bb2 f5 Be5 h5 fxg5 h4 e4 fxe4 Bg3 hxg3 cxd5 Bf5 Ke2 Bd7 Ke1 Bc8 Ke2 Kd7 Ke3 b5 Kf4 e5+ Kf5 b3 Kg6 e3 Kf7 b2 h4 g2 d4 e2 a4 e1R g6 e4 d6 e3 d5 b4 h5 b3 g7 Na6 h6 Ra7 h7 Nb4 Nf3 g1Q Rh5 Ba6 Nd4 Kc8 d7+ Kb7 d6 Ne7 g8B Na2 Bb5 Qg3 Na3 b1R Qd2 b2 Rf5 Qh4 Nac2 Rbd1 Qa5 Nc3 Qb4 Qb8 d8Q Ra8 d7 Ne4 Qe8 Qd8 Ne6 Kb8 Ned4 Nc8 Qe6 Bd6 Qg6 Qdg5 d8N Ng3 Ke8 Bb7 Nf7 Re2 Ne5 Ra5 Nc4 Bh1 Nb6 Rdd2 Ba6 Rd5 Bb5 Bg2 Kd7 Rd1 Bf7 Rf8 h8R Ree1 Nb3 R5d2 Nbd4 Bf3 Rh7 Bc6+ Ke6 Rd8 Be8 Rde2 Kf7 Be5 Kf8 Nd6 Nc8 Rd7 Bf7 Nde4 Ke8 Rdd2 Qh6 Bf4 Bh5 Rd5+ Kf7 Bd6 Qg6 Bb7 Ke8 Rdd1 Nf3 R5d2 Nfd4 Bc6+
1b1RN1k1/1P1N3p/q1RP1r1Q/2Qp4/B2b4/1q1p2Bb/KN2r3/nq3r1R w - - 0 1 illegal: No possible last move
Rbb1B3/7b/1N3kr1/1rPRNrnp/2Q5/BBbK2b1/1Q1ppqP1/2N5 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 e4 f5 f3 fxe4 Kd2 b5 axb5 Nc6 Ke1 Ne5 f4 gxf4 Qd2 Nf7 Qd1 Ng5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Ke2 Kf7 b4 e5 c4 a5 b6 d5 b7 h5 b8Q e3 b5 d3+ Ke1 a4 c5 d2+ Ke2 f3+ Kd3 f2 g6+ Kf6 b6 d4 g7 e2 b7 e1B Na3 e4+ Ke2 e3 Qh2 d3+ Kf3 Rb8 Ke4 Nh6 g8B Nf7 Be2 f1R Qb3 d1B Nc4 a3 Ne5 a2 Ba3 Bd6 Qb2 Rf5 Qf4 Ng5+ Kd4 Rh6 Bb3 Qf8 Bf3 Nh3 Ne2 Bg3 Bc6 Ng5 Nc1 e2 Be8 Bc2 Rd1 Rg6 Ke3 Bc7 Qc4 Bd6 Rb1 a1B Rd2 Ra8 b8N Ra5 Rd1 Rb5 Nbd7+ Ke7 Nb6 Kf6 Qbd4 Bc3 Ra1 Bb8 Ra2 Bb4 Qb2 Bc3 Bb4 Bh4 Ra8 Bg3 Ba3 Bb1 Rf1 d2 Rf4 Bd3 Rd4 Be4 Rd8 Bd5 Kd3 Bg8 Rd7 Bh7 Rd5 Qd6 Nf7 Qf4 Ne5 Qf2
RrNrqk2/3p2rP/1bK2p1R/1P2N2b/p3Q1B1/rBNR4/7n/2Q1rq2 w - - 0 1 illegal: Other
q1R1B1bK/q1P5/QbN2P2/6p1/b3Q1N1/Qb3rpN/Rp5r/1Bk1b2n w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 a5 g4 axb4 e5 f6 exf6 Kf7 Ke2 Ke6 f7 Kd6 Ke1 Kc6 f4 h6 f5 Na6 g5 Nc5 Bd2 Ne4 Be3 Nef6 gxf6 Kd5 Bd2 Kc6 Bg5 hxg5 Kd2 Kd5 Kd3 b5 c4+ Ke5 a4 Kf4 h4 e5 h5 d5 a5 b3 c5 g4 a6 g5 h6 b4 a7 g3 h7 b2 c6 b3 c7 Bc5 f8N Bb6 f7 Nf6 Nc3 b1Q+ Qc2 b2 Na2 Be6 Nb4 Qa2 Nd7 Ne4 f8Q Bg8 f6 Qc8 Nc6 Nf2+ Kd2 d3 Qa3 e4 Nde5 d4 Ng4 Rb8 a8B Rb7 Rh5 Nh1 Nh3+ Kf3 Rh6 Qb8 Qc4 Qa7 Qca6 Qd5 Ra2 e3+ Ke1 e2 Kd2 Rb8 Bb7 Re8 Bc8 Re4 Bd7 Rf4 Be8 Qd8 Rg6 Qda8 Rg7 Ke4 Rd7 Rf5 Rd8 Rf3 Rc8 e1B+ Kd1 d2 Kc2 Re3 Bd3+ Kf3 Bdg6 d3+ Kc3 Ke2 Bf5 Re6 Kc4 Kd1 Kd5 Re3+ Kd6 Rf3 Ke7 Kc1 Kf8 d1B Kg7 d2 Bb1 Bc4 Qb4 Bf7 Qe4 Bdb3 Qa3 d1B Qa6 Rf8 h8Q Bg8 Qh6 Ba4 Kh8 Bdb3 Qg7 Rf7 Qf8 Rd7 Qfe7 Rd2 Qa3 Rh2
Q1N1n1bN/1p1QnnPp/n2B4/5B2/R1qP1K2/p1BR4/2Nqrkn1/1r6 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 b4 a5 Bb2 a4 Ba3 Bc5 Bc1 Bb6 a3 Nc6 Rh2 Ba5 bxa5 Nb4 Rh3 Na2 Rh1 Qd6 Qb3 Qxa3 Qc2 Qd6 Qd1 Qd8 Kf2 Kd7 Kf3 Kd6 e4 Kc5 g4 Kd4 g5 f5 d3 c5 a6 c4 d6 h3 a7 c3 d7 c2 e5 h2 e6 Ne7 g6 Nb4 g7 Na6 Qe2 Re8 Bd2 c1N Kg2 f3+ Kg3 f4+ Kg4 f2 Qd1 f3 Bh3 f1Q Na3 f2 Bc3+ Ke3 Nf3 Qe2 Re1 f1N Nc2+ Kf2 Kf4 h1N Bf5 Nhg3 Ne5 Ne4 Ng6 Ne3 Nh8 Nf6 d4 Qa5 d8B Qc4 Bc7 Qab4 Qg4 Nd3+ Kg5 Ne5 Kf4 Qa5 Red1 Nf7 Bd6 Bd7 Rd3 a3 Rc1 Rac8 a8Q Bc6 Rb1 Bd5 Rb4 Rc6 Ra4 Rb6 Bb2 Qd2 Bc3 Rb1 Qh3 Rc8 Qg4 Ne8 Qh3 Ng8 e7 Rc5 Qg4 Rcb5 Qh3 R5b2 Qg4 Nef6 e8N Ne7 Bdb4 Ra2 Nd6 Ne8 Nc8 Ng5 Ba1 Bg8 Bac3 Nf7 Bd6 Qd1 Nb4 Re2 Nc2 Qe1 Be4 Qd1 Qd7 Qd2 Bf5 Ng2+
1Nbrq1nQ/PpbB1b1p/7k/B1QN2bq/1R2K2N/1pP1b3/3R1B2/4r3 w - - 0 1 legal: proof: g4 a5 h4 c5 f4 f5 d4 cxd4 b4 axb4 h5 Ra6 g5 Qc7 e4 Rg6 exf5 Rc6 f6 Ra6 f5 Qd6 Be3 Ra8 Bc1 Nc6 h6 Nd8 g6 Nf7 gxf7+ Kd8 Rh2 Qf4 Rh3 Qxh6 Rh1 Qh2 a4 d5 c3 e5 a5 g5 a6 e4 a7 b3 Bf4 g4 Be3 d3 Nh3 g3 Nf4 d4 Qh5 g2 Kf2 d2 Ra2 d1Q Nd5 d3 Rd2 Bh6 f8B Qe5 f7 Bg5 f6 Qe8 Bb4 g1B+ Kg3 Rb8 Bf2 e3 f8N e2 f7 e1B Nd7 Bh2+ Kg2 Bc7 f8Q Be3 Qe5 Qh5 Ba5 Bg5 Rh4 Be3 Rd1 B1d2 Qc5 Bg5 Ra4 Bde3 Rb4 d2 Be2 Ra8 Bg4 Rb8 Kf3 Ra8 Rf1 d1B+ Ke4 Be2 Bh3 Bc4 Nd2 Rb8 Nf3 Ra8 N5f6 Bf7 Rd1 Rb8 Be6 Ra8 Rd6 Ke7 Nb8 Kf8 Rd2+ Kg7 Nd5+ Kh6 Nh4 Bd7 Nc6 Rd8 Nb8 Bc8 Bg4 Rd6 Bd7 Rf6 Be1 Rf1 Bg3 Re1 Bf2 Ne7 Qed4 Rf8 Qh8 Ng8+ Be6 Qa4 Bf5 Rd8 Bg4 Qe8+ Be6 Qf8 Bd7 Qe8+
b5qr/q1BB4/1N2R2p/pK1R1Pqq/Q3r1p1/3r4/n3Q2P/kBN2Qn1 w - - 0 1 legal: proof: e4 c5 b4 d5 f3 dxe4 a4 b5 axb5 cxb4 g3 exf3 Qe2 f5 Qd1 f2+ Ke2 f4 Nh3 e6 Ng1 Bd6 Kd3 f3 Ke3 Bf4+ gxf4 Kf8 Bd3 Kf7 Bf1 Ke8 c4 Kd7 Kd4 Kd6 b6 g5 b7 a5 d3 h6 f5 e5+ Ke4 Kc5 Qc2 g4 Ra2 b3 d4+ Kb4 Kd3 b2 c5 Nd7 b8Q+ Bb7 d5 e4+ Kd4 e3 c6 e2 c7 e1R c8B Ne5 d6 Nf6 d7 Qg8 d8Q Nd5 Qe2 Kb3 Kc5 Nc3 Na3 b1Q Bf4 Qc1 Rd2 Na2+ Nc4 Kc3 Bg2 f1Q Qe8 f2 Bd7 Nf3 Kb5 Kb3 Qbe5 Rd8 Qa1 Ba8 Nb6 Qc7 Bd6 Qa7 Rd5 Qg5 Bc7 Qh5 Nh3 Ng1 Be4 Qg2 Bb1 f1Q Qe4 Qf4 Nf2 Qfg5 Nd3 Qg8 Qf1 Qd2 Qee2 Qdg5 Nc1+ Ka3 Qc4 Re3 Qce2 Rde8 Qd4 R8e4 Qdc4 Rd3 Qcc2 Rd2 Qcd1 Kb2 Qa4 Nf3 Rg1 Ka1 Rg3 Ng1 Re3 Re7 Re6 Rd3 Rg6 Re5 Re6 Re4
1N6/2QQR1qR/2n2Pq1/r1pNn2b/Bn1pR1qN/2r4P/k1q3pK/6B1 w - - 0 1 legal: proof: a4 h5 d4 b5 axb5 e6 b4 Be7 g4 hxg4 b6 Bh4 e4 f6 e5 fxe5 c3 Be7 b5 Bb4 cxb4 exd4 Bg2 d3 Bh3 Qg5 Bf1 Qd8 f4 Ke7 Kf2 Kd6 Kg3 Kd5 h3 Kc4 b7 g5 f5 a5 b6 d5 b5 a4 Bb2 e5 Rh2 a3 Qe1 Kb3 Ra2 e4 Bc3 e3 Bg2 d2 Ba1 d1Q Rf2 a2 Na3 e2 Bg7 a1Q Nf3 Ka2 Nc2 Qd7 Bd4 Ne7 Nh4 Ng6 Qd2 e1N Ne3+ Nc2 Rf4 Nc6 b8R Nge5 b7 Ra5 b6 Qe2 Qd1 N2b4 Re4 Qc2 f6 Qg7 Rh1 Qab1 Kh2 Rd8 Re1 g3+ Kh1 g4 Bf3 g2+ Kh2 Ned3 Be2 Nde5 Bb5 Bd7 Ba4 Rc8 Ra8 Bf5 b8N Bg6 b7 Bh5 Qd2 Qd1 Ra7 Qg6 Nf1 Qf3 Bg1 Qff5 Qd3 d4 Ne3 Qg7 Nd5 Qfg6 Qb5 Rd8 Ne3 Rd5 Re2 Rc5 Nd5 Rc3 Re1 Ne7 Qd7 c5 R1e2 N7c6 R2e3 Nc4 Re7 N4e5 Re4 Qh8 Rh7 Qhg8 Be3 Rd3 Qe8 Rc3 Na6 Q8g7 b8Q Ra3 Kg3 Rc3 Re7 g1Q+ Ng2 Nd8 Qc7 Qgd1 Kh2 Ndc6 Nb8 Qf3 Qed7 Qff5 Bg1 g3+ Kh1 Qgg4 Nh4 g2+ Kh2 Qfg6
r4K2/N1q1BN2/2p2Q2/2Q1r3/1P2qq1P/1B1bq1kp/rp3n2/1Q1RRnN1 w - - 0 1 illegal: No possible last move
2k2N2/2BqQ2q/pn1n4/1NN2Rp1/nP1p1rBq/1RbqQ3/3P2Qr/4K3 w - - 0 1 legal: proof: b4 c5 f3 e5 a3 b5 f4 cxb4 Ra2 b3 Ra1 b4 axb4 Qb6 Ra2 Qa5 Ra1 Qd8 h4 exf4 h5 Bb7 g3 Be4 Ra3 g5 Ra1 Bg6 hxg6 fxg3 e4 d5 c4 Kd7 e5 f5 e6+ Kc8 c5 h5 c6 f4 g7 a6 c7 g2 e7 h4 e8Q h3 Qee2 b2 Nc3 b1N Ra3 h2 Ne4 f3 Nc5 Nd7 Qe3 Ngf6 g8Q Ne4 Qe6 Nd6 Bb2 Bg7 Rb3 Nc3 Ne2 g1Q Nf4 Qg4 Be2 Na4 Rf1 h1Q Be5 Rh2 Qe7 Ndb6 Ng6 Qdd7 Nf8 Qh4+ Bg3 Ra7 Qc2 Bc3 Qce4 d4 Qg4 Rf2 Bh2 Qh7 Qg2 Ra8 Be5 Q1h4 Qg1 Rh2+ Qef2 Ne8 Qg2 Ra7 Qf7 Qb5 Bg3 Qbd3 Qe3 f2+ Kd1 Qdf5 Bg4 Qe6 Ne4 Kb7 c8N+ Qe7 Ncd6+ Kb8 Qg7 Rd7 Nb5+ Kc8 Bc7 Nd6 Nc5 Qf7 Re1 f1Q Qf6 Qff5 Rf1 Qd3 Rf2 Qe6 Ke1 Rf7 Qe7 Qd7 Ng6 Rf3 Nf8 Rg3 Rf5 Rf3+ Kd1 Rf2 Ke1 Rf4+
6B1/Q4b1B/p1Q5/k3rp2/qn1n4/R1nqNKPr/RN2PpNq/n5B1 w - - 0 1 legal: proof: b4 b5 a4 e5 axb5 c5 f4 exf4 h4 g5 d4 gxh4 b6 cxd4 b7 a6 b5 Bd6 b6 Nc6 Ba3 Bb8 Bc1 Ba7 bxa7 Nb8 Kf2 d5 c4 Kd7 c5 Kc6 g3 Kb5 c6 h5 c7 f5 Kg2 d3 Kf3 h3 Rh2 h4 Be3 d2 Rg2 h2 Bc5 h1Q Kf2 d4 Nh3 f3 Na3+ Ka5 Qc2 d3 Nf4 h3 Qc4 h2 Rg1 Ne7 Ng2 Nec6 Ra2 Be6 c8B Bf7 Be6 Nd4 Ke3 Nd7 b8Q d1Q Kf4 Qb3 Nc2+ Qa4 Nce3 d2 Qd5 d1N Qc6 Re8 Qbb7 Rc8 a8N Nc3 Nb6 Rh8 Qa7 Rh3 Bf8 Nc5 Nbc4+ Kb4 Nb2 Ka5 Bd6 Ncb3 Bc5 Na1 Ra3 Qd7 Bb3 Re8 Be6 Bh5 Bg8 Re5 Bh7 Bg6 Ne1 Bf7 Bg2 Qd5 Rf1 Qg1 Bh1 Qc4 N1g2 Qd3 Rc1 Na2 Rcc3 Nb4 Ra2 Qf2 Nh4 Qg1 Bg2 h1N Rca3 Nf2 Bh1 Nb5 Nhg2 Nd1 Nc2 Qh2 Bg1 f2 Nce3 Re4+ Kf3 Ndc3 Ne1 Re5 Kf4 Bg6 Bd5 Nac2 Kf3 Na1 Bdg8 Bf7 Ng2 Nd4+
kn6/3R1Qp1/PrPRn1K1/1Qq1p1QB/6B1/n6N/r3pqq1/4RbnN w - - 0 1 legal: proof: e4 a5 b4 axb4 d4 f5 g3 c5 dxc5 fxe4 Bg5 e6 f4 Bd6 f5 Bf4 gxf4 h6 Qd3 hxg5 Qd4 Ra7 Qd1 Ra8 Kd2 b5 Ke3 d5 h4 Kd7 c4 Kc7 a4 Kb7 a5 b3 c6+ Ka7 c7 g4 f6 g3 f5 d4+ Kf4 b2 Kg5 e3 a6 d3 h5 e5 h6 d2 c5 b4 c6 b3 h7 g2 Qe2 d1Q Kg6 Q8d6 Nh3 g1N Nc3 b1N Ne4 b2 Ng3 Bd7 c8B Qe7 f7 Qe1 f8Q Nh6 f6 Nf5 f7 Na3 Rd1 b1Q Qb5 Qe4 Rd6 Qg2 Qd8 Qef2 f8Q Nd4 Qf7 Ne6 Be2 Qf8 Bh5 e2 Rd1 Q8c5 Rd6 Rg8 Qg5 Rd8 Bb7 Bc8 h8R Bd7 Rh6 Bc8 Rd1 Rd2 Re1 Ra2 Rd1 Nf3 Rhe1 Ng1 Nh1 Nc7 Nf4 Bh3 Rd2 Ne6 Bc8+ Nd7 Rd6 Rb8 Rh8 Rb7 Rd8 Nb8 R8d7 Ka8 Rb1 Qgd5 Re1 Bf1 Nh3 Qdg2 Rd8 Nd4 Bcg4 Rb6 R8d7 Ne6
QBq4N/2Q1p3/1Pr2rpq/3nQq1R/7r/K2P4/qn1bR1Bp/2k1NB2 w - - 0 1 legal: proof: d4 d5 h4 g5 c4 gxh4 a4 b5 axb5 dxc4 g4 Bb7 g5 Nd7 g6 Bf3 g7 Nb8 Qd3 Be4 Qg3 Bd3 Qg6 fxg6 exd3 Qc8 Ra2 Qd7 Ra1 Qd8 Kd1 Kf7 Kc2 Kf6 b4 Kf5 Kb2 h5 f4 a5 b6 c5 d5 h3 b5 c3+ Ka2 h2 d6 c2 b7 h4 b6 a4 d7 a3 Kb3 a2 Bb2 c1Q Be5 h3 Be2 c4+ Kb4 c3 Nf3 c2 Bd6 Qc8 d8Q Nd7 b8Q Ngf6 g8B Qf1 Ne1 c1R Bd5 Rh4 Qdc7 Bh6 Na3 Nc5 Nc4 Na4 Ne5 Nb2 Bg2 Rc6 Nf7 Nd5+ Kb3 Qf3 Nh8 Qe4 Rc1 a1Q Bef1 Kg4 f5 Bd2 f6 Qef5 f7 Ra2 Rg1 h1Q f8Q Ra5 Rc5 Qa2+ Kc2 h2 Qf6 Ra4 Qe5 Rf4 Qa8 Kg3 Qcb7 Kf2 Bb8 Rf3 Qbc7 Rff4 Be4 Ke3 Rg2 Qg1 Rf2 Qgg5 Rg2 Qb1+ Kb3 Qh6 Ka3 Rf2 Rg5 Rf3 Rh5 Rff4 Rc2 Rf3 Bg2 Ke2 Bf1+ Kd1 Rc5 Rff4 Beg2 Rf2 Ra5 Kc1 Ra4 Qfe6 Rg4 Rf6 Re4 Qf5 Re2 Qa2+
3R4/QrPqK1N1/1bp2p1B/2k5/3n2Q1/P4q1B/p1rRnN1r/1BqN3r w - - 0 1 illegal: No proof kernel
2kq1b2/q1P2R2/ppn3q1/2B2RpB/P1R4n/2N3N1/q1b2QrQ/1BK4n w - - 0 1 legal: proof: c4 d5 b4 e5 h4 b6 f4 exf4 h5 a6 g3 c5 bxc5 dxc4 Ba3 Ra7 Bb2 Rd7 Bc1 Rd6 Bh3 g5 Bf1 Rg6 hxg6 fxg3 d4 Kd7 Kd2 f5 a4 h5 e4 h4 c6+ Kc7 e5 f4 d5 g2 e6 h3 g7 h2 e7 f3 e8B f2 Qc2 Nd7 d6+ Kb8 Ne2 g1Q Ba3 c3+ Kc1 Ne7 g8Q Ne5 d7 Nf3 Qf7 Nh4 Bc5 Qg2 Ng3 Rh5 Qd2 c2 Bd3 Qd5 Ra3 Qa2 Rf1 h1N Rc3 Kc7 Rc4 Rh8 Re1 f1Q Qh2 Qf6 Re5 Qg6 Nc3 Rh7 Qf4 Rf7 Qd4 Rf2 Rf5 Rg2 Qf2 Bb7 Be2 Kb8 Bh5 Kc7 Bf7 Ba8 Bg8 Kb8 Bh7 Kc7 Kd2 c1Q+ Kd3 Qd1+ Ke3 Qgd6 Rf7 Qb8 d8R Qa7 Bb1 Qg6 Rd5 Kc8 Rdf5 Qd8 c7 Bf3 Bd4 Bd1 Bc5 Bc2 Ke2 Nd5 Kd2 Ne7+ Kc1 Nc6
2n1R3/1p2K3/b2Q1Npb/QRpqNk2/2rbbP2/B4B1n/2bbQ2P/2N5 w - - 0 1 legal: proof: g4 a5 b4 axb4 c4 d5 cxd5 h5 e3 hxg4 Ke2 f5 Qc2 f4 Kd1 f3 Ke1 Ra6 Qd1 Rf6 Nc3 Nh6 Nb1 Rf4 exf4 Qd6 Qb3 Qe6+ Kd1 Qe3 Kc2 Qxf2 Qc4 Rg8 Qe2 Rh8 Qd1 Ng8 Kb3 Kd7 Kc4 e5 d4 g6 a4 b3 d6 Ke6 Kc5 b2 a5 g3 a6 g2 a7 e4 a8N e3 d5+ Kf5 Nb6 Bh6 d7 Nf6 d8Q Ng4 d6 Nc6 d7 Na7 Na3 b1B Nd5 Qa2 Nc4 e2 Ba3 e1B Be2 f2 Nf6 f1B Bf3 Bd2 Qe2 Bc2 Ne5 Nf2 Rb1 Nh3 Rb5 c6 Kd6 Qd5+ Ke7 c5 Qc7 Rd8 Qa5 Be4 Qe3 Bc4 Ne2 g1B Qd3 Bd4 Qe3 Bcd3 Rhb1 Bc2 Nc1 Bed3 Qe2 Bc4 Rb6 Ba6 R1b5 Be4 Re6 Bc2 Kf7 Re8 d8Q Bd7 Qb8 Nc8 Qd6 Be4 Rb4 Ba4 Rb1 Rd8 Rb5 Rd7+ Ke8 Bac2 Re7 Rc7 Kd8 Rc6 Re8 Rb6 Rb1 Rb4 Rb2 Na7 Ke7 Rc4 Rb5 Nc8+
n1rn3N/1b1p1r1R/Nb3k2/n1QK3b/QB1p2QN/rB4PP/4rp2/5R2 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 gxf4 d4 cxd4 Nc3 f5 Nb1 f3 g3 h5 Ra2 h4 Ra1 h3 Qd3 f4 Qe2 Qc7 Qf2 Qc5 Qg2 Qf5 exf5 hxg2 Kd2 Kf7 Kd3 a5 Ke4 e5 c4 f2 b4 f3 f6 a4 c5 a3 b6 a2 c6 Ra7 b5 Rc7 b7 Rh3 b6 Nh6 Nd2 Kg6 f7 Bc5 f8N+ Kf6 Bc4 f1B Bb3 f2 Ba3 Be2 Rf1 a1N Kd5 e4 Bb4 e3 Ngf3 g1R Nh4 Na6 b8Q Bb7 Qa7 Rc8 Nfg6 Nf7 Nh8 Nd8 Qa8 Bh5 Ne4+ Kg7 Qa7 e2 Qa8 e1R Qa7 Bf8 Nc5 Re2 Qa8 Kf6 Qa7 Ba8 b7 Be7 b8Q Bb7 Qc7 Bd6 Qa5 Bc7 Qa4 Bb6 Qb8 Ke7 Qf4 Nc7+ Kc4 Na8 Qg4 Kf6 c7 Ba7 Na6 Bb6 Rb1 Rd1 Rc1 Rd3 Rcf1 Rb8 c8Q Rf3 Qc5 Rc8 Bc2 Ra3 Bd1 Nb3 Bc2 Rc6 Kd5 Na5 Bb3 Be8 N4g6 Rh7 Nh4 Rf7 h3 Rb2 Re1 Rc2 Re7 Re2 Rf1 Rc8+ Kd6 Rf8 Rg7 Bh5 Rh7 Nac6 Kd5 Rf7 Be1 Bc7 Bd2 Bb6 Bb4 Na5+
b3Brb1/pnpPNp2/6P1/2K1nNQb/1n1QR3/BR4r1/2kb1N2/2r2B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c3 exf4 c4 dxc4 b6 gxh4 b7 Kd7 Qb3 Na6 b8Q Qe7 Q8b7 Rb8 Q7f3 Rb5 Qa8 Rd5 Qa4+ Kd6 Qd1 Be6 Qb8 Qd8 Qxd8+ Kc6 Qa8+ Kd7 Kf2 Kd6 g4 Kc5 b4+ Kd4 e4 h5 g5 h3 e5 c3 d3 h4 b5 h2 b6 f3 b7 h3 b8N c2 Nc3 Bg4 e6 Nh6 e7 Nc5 e8B Nb7 Ba3 c1R Rb1 Bb4 Rb3 Bh5 Ne4 Rf8 Nd6 Re5 Qd2 Re3 Qd1 Bd2 Nc6+ Kd5 Ne7+ Kd4 Qd8 Ng4+ Kg3 f2+ Kf4 Rg3+ Kf5 Ke3 d4+ Rc3 d5 Ne5 Qa1 Kd4 Qd1 Rc6 Kf6 Rc1 Ndf5+ Ke4 Nh6 Kd4 d6 Ke4 d7 Kd4 Bb5 f1N Nhf5+ Ke4 Be2 Ne3 Bf1 Nc2 Qg4+ Bf4 Qd1 Nb4 Qd6 Bd2 Qb6 Bg6 Qd6 Bh7 g6 Bc3 Qd2 Bg8 Qg5 Bd2 Qb8 Nd8 Qb6 Nb7 Ne2 Nbd3 Nf4 Nb4 Rg1 h1B Nd3 h2 Rg2 Be3 Re2 Bf3 Qc5 Bh5 Qd4+ Kf3 Re1 Bd2 Re4 h1B Nf2+ Be3 Bh3 Ke2 Bf1+ Ke1 Nd3+ Kd2 Nf2+ Kc2 Rd3 Nc4 Rb3 Nca5 Ke5 Bd2 Qd6 Nc4+ Kd4 Ne5 Qd5 Nd6 Kc5 B1f3 Qd4 Bh1 Rh4 Ba8 Re4 Nb7+
K5rB/4NnQ1/BQ1Pb2R/1R3b1b/RP2pbBp/2pk2nr/3n1n2/1N6 w - - 0 1 legal: proof: f4 b5 a4 g5 c4 bxc4 e4 d5 h4 gxh4 exd5 Qd6 d4 Bg7 Kd2 Qc6 d6 Qb5 d5 Bd4 f5 Bf2 f6 Nxf6 axb5 Ng8 Kc3 Kd7 Kb4 a5+ Ka4 e5 g4 f5 b4 c5 b6 h5 Kb5 a4 b7 c3 Kb6 f4 g5 e4 g6 f3 g7 h3 Ba6 c2 Qd4 c4 Qc5 c3 Bf4 c1N Qd4 a3 Be2 a2 Bh2 Nc6 b8R Nh6 g8B Nf7 Na3 Bg3 Qg7 f2 Qh7 f1B Qg6 Nd4 Nf3 Nd3 Bd1 Nf2 Bg1 h2 Nh4 Ne2 Nb1 Bf4 Qg7 Bh3 Ng6 Bf5 Ne7 Ng3 Be2 Be6 Bh7 Rg8 Bf5 Ra5 Bd3 Rc5 Ka7 h4 Bg4 Rc4 Rb6 Rd4 Ba6 Rd3 Rb5 Bf5 Ka8 Rf3 Nd2 Re3 Rf1 a1N Nb1 Nb3 Rd1 Nd2 Rf1 Kd8 d7 Kc7 Rd1 Kd6 d8Q+ Bcd7 Rf1 Nh5 Rd1 Rh3 Rf1 Ng3 Rd1 Nd3 Bd4 Nf2 Rhe1 h1B Re2 Ndf1 Ra2 Bf3 Ra4 Be6 Rd3 Nd2 Bf6 Be2 Rf3 Bh6 Rf5 Bf4 Rh5 Bd1 Rh6 Bf3 Bf5 Bh5 Bg4 Bf5 Qdf8 Bc8 Qg6 Bce6 Bh8 Rg7 Qd8+ Ke5 d6+ Kd4 Qb6+ Kd3 Qf6 Nd8 Qg6 Rg8 Qg7 Nf7+
3R3r/3r4/p2R2Bk/3b3b/N2p3B/n1PQbpQK/PB2N1b1/rRrn4 w - - 0 1 legal: proof: f4 g5 d4 gxf4 d5 c5 d6 c4 Kd2 c3+ bxc3 exd6 Ke1 d5 Bd2 d4 Be3 Qb6 Bc1 Qd8 g4 h5 g5 b5 g6 b4 g7 b3 Be3 b2 Bc1 Nf6 g8Q Qb6 Qg6 Qb3 cxb3 Ng8 Qg4 hxg4 Kf2 f5 Kg2 Kf7 e4 Kg7 h4 d5 b4 a6 e5 d3 h5 d4 b5 d2 e6 f3+ Kg3 f4+ Kh2 f2 e7 g3+ Kg2 Kh6 e8R Ne7 b6 Nd5 b7 Nc6 b8B Ncb4 Rh3 Be6 Na3 b1B Ne2 Nc2 Nc4 Ra7 Bb2 Rd7 Rd8 Na3 Nb6 Bg8 Rh2 Be4+ Kh3 g2 Rb1 g1R Na4 Bh1 Bd6 Bf7 Be7 Ne3 Bh4 Bfd5 Qc2 d1B Qd3 Be7 Bg2 f1R Be4 Bg5 Bg6 f3 Rg2 B1b3 Rg4 Re1 Re4 Rgf1 Re6 Nd1 Rd6 Be3 Bg3 Kg5 h6 Bc2 h7 Kh6 Qb5 Bd3 Bh4 B3e4 Qd3 Bf5+ Kh2 Bg4 Kg3 Bh5 Kh3 Rg1 Bf7+ Bg6 Rc6 Nf2+ Kh2 Rd1 Rc1 Rg8 Bg3 Re8 h8Q+ Kg5 Qe5+ Kh6 Rd6 Rh8 Bh4 Rdf1 Qg3 Re1 Rc2 Ra1 Rc1 Rf1 Rb1 Rc1 Be8 Nd1 Kh3 Rc7 Bf6 Bh5 Bg6 Rd7 Bh4 Bg2+
3N4/B4Rr1/3b1Rp1/p2Rq2q/2NnP1Q1/qr1rq3/QBp1q1P1/K2k2B1 w - - 0 1 legal: proof: c4 d5 a4 dxc4 h4 b5 h5 bxa4 Ra3 Nc6 Ra1 g6 h6 Nd4 Ra2 Nf5 Ra1 Ng7 hxg7 Qd7 Rh3 Qd4 Rh1 Qd8 e4 e6 d4 Qg5 d5 Qg3 d6 Bd7 Be2 Qh4 Bf3 Qf6 e5 Qd8 Bd5 exd5 f3 Bg4 Rh3 Bf5 Rh1 Be4 fxe4 Qf6 Nd2 Qg5 Nb1 Qd8 Kd2 Kd7 Kc3 Ke6 b4 f5 Kb2 a5 b5 h5 d7 c5 b6 d4 b7 h4 b8B d3 Na3 d2 Ne2 f4 Ng1 h3 Qc2 d1R Kb1 f3 Qb3 h2 Bc7 f2 Kb2 f1Q Nf3 Rh3 Kb1 Ne7 g8R Qe2 Qb6+ Nc6 Qb5 c3 Qb7 c4 Rf1 h1Q Qb3 Ra7 Bb6 Qe8 d8B Bd6 Rf8 Rg7 Rf7 Rg3 Rf2 Qh5 Ba7 Rd4 Bb2 Rd5 Nb5 a3 Bdb6 Rh3 Nd2 a2+ Kc2 Rg3 Rd1 a1Q Rff1 Qa2 Bg1 Qa3 Kb1 Qe7 Qa2 Qf6 Bad4 Re3 Na7 Rb5 Bh2 Rb3 Bg1 Qe7 R1f5 Qe8 Rdf1 Rd3 Bc5 Qe7 Ka1 Nd4 Bb6 c2 R1f4 c3 Nc6 Qe8 Ba7 c1Q+ Nb1 Qcc2 Nd2 Qef3 Nc4 Qce2 Rg5 c2 R4f5 Qe7 Nd8+ Kd7 R5f6 Qfe3 e6+ Kc7 Nb7 Kc6 Rd5 Qe8 Bc5 Kb5 Ba7+ Kb4 Nd8 Rd2 e7 Rdd3 Rf4 Rh7 Rf1 Qh8 e8Q Q8e5 Qd7 Rg7 Bc1 Kc3 R1f6 Bf8 Qg4 Be7 Nb6 Bd6 Bb2+ Kd2 Nc4+ Kd1
KB6/2Nprr2/Rpkb3r/2q2Q2/1r1Rp3/2R1NQrP/1q1nPB2/Qq6 w - - 0 1 legal: proof: d4 a5 f4 c5 b4 axb4 f5 cxd4 Be3 e5 Qc1 b6 Qd1 Ba6 Bc1 Bc4 g4 h5 Bg2 Be6 Be4 Nc6 Bf3 Nce7 fxe6 f5 Bd2 f4 Bc1 Nf5 gxf5 Rc8 Bg4 hxg4 Ba3 Rb8 Bc1 Ra8 Kd2 g5 Kd3 f3 Kc4 f2 Kb5 f1R a4 g3 c4 b3 h3 b2 c5 d3 e7 d2 f6 g2 a5 g4 a6 g3 c6 Ra7 c7 Re1 c8R Rc7 a7 Rh4 Ka6 Rh8 a8Q Rh7 Nf3 g1R Nh2 g2 Qf3 Ref1 Na3 b1Q Ng4 Rc4 Ka7 Rb4 Rc3 Rf7 Qa4 d1R Ne3 Rd6 Nb5 Qc8 Ra2 Qc5 Ka8 Qb2 Bd2 Re6 Be1 Rh7 Qd1 Rh6 Qa1 Rf2 Qf5 Rf3 Bh4 Rg3 Ra7 Rf1 Ra6 g1Q Nc7+ Kf7 Qf3 Rf2 Qf5 Qgb1 Qf3 Kg6 f7 Nf6 e8Q Re7 Qc8 Ne4 Rd1 Nd2 Qcb7 e4 Qd5 Nf1 Rd4 Nd2 Bg5 Kg7 Bf4 Kf6 Qdh5 Re6 Qf5+ Ke7 Bd6+ Kd8 Bf4 Bd6 f8B Re7 Bg7 Rg1 Bh2 Rg3 Bg1 Rf1 Be5 Rf2 Q3h5 Rf4 Bf2 Kc8 Qf3 Kd8 Q5g4 Rff7 Qgf5 Kc8 Nb5 Bb8 Nd6+ Kc7 Ne8+ Kc6 Bf4 Bc7 Be5 Bd8 Bb8 Bc7 Qg6+ Kb5 Qgf5 Bd6 Nc7+ Kc6
5B2/R1r2Qn1/1RPPqQ2/qN4K1/Br1p2Bp/R3r2r/rp1N3k/r5b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 exf6 Rh3 f5 Rh1 f4 Qc2 c5 Qb3 Be6 Qd1 Nc6 Nf3 Ne5 Ng1 d4 d3 Bd5 cxd5 c4 Qd2 c3 Qd1 Nc4 dxc4 Bg7 Rh2 Bh6 Rh1 Bf8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 e4 f5+ Kh5 b5 g4 f3 a4 f4 g5 f2 a5 c2 g6 b3 d6 f3 c5 b4 a6 b2 g7 h3 a7 b3 Bc4 f1Q Bd3 h2 Ra6 f2 Qf3 Ne7 g8R Nf5 Rg3 Qa5 Nd2 b1R Be2 Qh3+ Kg5 f1R Rb6 Ng7 Qf7 h5 Bg4 Rf3 Ne2 Re3 Nc3 b2 Rd1 h1R Nb5 h4 Rdg1 Rb8 a8Q Ra1 Rf1 Rb7 Qd8 Rc7 Rf6 Ra2 Rh6 Rg8 Rh7 Rh2 Bd1 Qd7 Bg4 Qe6 Qde7 Rh3 Qd8 Re2 Ra3 Ree3 c6 Qd7 Nb3 Rc3 Kh6 Ne8+ Qg7+ Nf6 Rb8 Qa4 Na7 Rb7 Bd1 Rc4 Nb5 Rb4 Qc7 Ra7 Rb6 Qa5 Kg6 Rh8 Bh6 c1R Nd2 Rca1 Ba4 Be7 Qf8 Nh5 Qf2 Re8 Bf8 Bg5 Qd8 Ke6 e5 Be3 Qe7+ Kd5 Qff6 Bg1 e6 Rb7 Rf7 Ng7 Kg5 Qc8 Qc7 Ra7 e7 Rb7 Nb3 Ke4 Qd7 Ke3 Nd2+ Ke2 Kf4 Kf2 Kg5+ Kg2 Qde6 Rd8 e8B Kh2 Bd7 Re8 Re7 Ra7 Qef7 Rb7 Bg4 Ra7 Rc7 Ree3 Rcb7 Qe6 Rc7 Ra8 Rcb7 Rc8 Ra7 Rc7
6Bn/3p1rbq/r1nB1NPp/p6Q/3Rr1BP/2Q3n1/p1R2K2/bk4NN w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 bxa4 g3 e5 g4 exd4 f3 fxg4 Qd3 g5 Ra2 g3 Qd1 g4 Ra1 g2 Na3 g3 Nb1 Bb7 Ra2 Bd5 Ra3 Be6 Ra1 Bg4 fxg4 Be7 Bf4 Bd6 Bc1 Bf8 h4 Ke7 c4 Ke6 e4 Ke5 c6 a5 c7 h6 c8Q a3 c5 d3 g5 Kd4 e5 a2 c6 Bg7 g6 Rh7 c7 Nf6 e6 Nh5 e7 Nc6 e8N Ra6 Ba3 Qe7+ Be2 Ke4 Bg4 d2+ Ke2 Kd4+ Kf3 Kd3 Nf6 Qf7 Qe2+ Kc2 Nc3 Qg8 Qb5 d1R Rh2 Re1 Rd1 Re4 Bd6 Qf7 Nce2 Qe7 Nh3 g1B Rd4 g2 Nf2 Ng3 Qh5 Kb1 Nh1 Bf2 Qh8 g1N+ Kg2 Qf7 c8B Nf3 Bb7 Ng5 Ng1 Qg8 Ba8 Nf7 Kf3 Be1 Rc2 Bc3 Kf2 Ba1 Bb7 Qa8 Qc8 Nh8 Qc7 Qg8 Qc8 Nb4 Bd5 Nc6 Bf7 Bf8 Bc4 Rf7 Qc7 Bg7 Bb3 Nd8 Qc3 Nc6 Bd5 Qh7 Bb3 Rfe7 Bg8 Rf7
4nQ2/1k1n1qq1/1p1B1N1B/r1pb4/1b1qQB2/2N1P1pr/K1RRp1P1/5R2 w - - 0 1 illegal: No possible last move
1N3n2/4kp2/Q1q4b/QR1n1PPp/1p2pq1R/N2Bb3/KB2r2B/n1r4Q w - - 0 1 legal: proof: b4 d5 a3 b5 a4 c5 axb5 cxb4 h4 a5 e4 dxe4 h5 Ba6 h6 gxh6 bxa6 h5 Bb2 h4 Ba3 Qd4 Bc1 Qd8 g4 e5 f4 h5 d4 e3 c4 e2 Kd2 e1B+ Kc2 a4 Kb2 e4 c5 a3+ Ka2 h3 c6 h2 g5 Rh6 c7 Qd7 c8Q+ Qd8 f5 Bg7 a7 Nc6 d5 Nb8 d6 Bd2 d7+ Ke7 Bd3 Qb6 Bb2 Rc6 Ne2 Be3 Qa6 Rc1 Nd4 Nf6 Qf3 Qc6 d8B+ Kd7 Qd1 Bh6 Bc7 Ke7 Bg3 Nbd7 Qe1 Rg8 a8Q Nf8 Qa5 Nd5 Q8a6 Rc2 Bf4 Re2 Bb8 Qd6 Qh4 Qf4 Nc6+ Kd7 Bc7 Rh8 Nb8+ Ke7 Nc3 Rg8 Nb5 Rg6 Rac1 Rc6 Be5 Rc7 Rc5 Rc6 Kb3 a2 Na3 a1N+ Ka2 Rc8 Rb5 Rc6 Rg1 h1Q Rg4 Qd1 Qh1 Rc1 Rh4 Qc2 Bc7 Qc6 Be5 Qf1 Bh2 Qf4
1BR2K1n/1kP3B1/4B3/1N1p4/3br2q/QPQ2Nq1/p1R1pp2/3qrbnQ w - - 0 1 legal: proof: e4 h5 a4 b5 axb5 h4 d4 c6 d5 cxd5 Kd2 dxe4 f3 exf3 g3 f2 gxh4 Qc7 h5 Qd8 Ke3 g5 Ke4 d5+ Ke5 Kd7 c4 Kc7 h4 f5 h6 a5 c5 g4 b6+ Kb7 b3 a4 h5 g3 h7 f4 h6 a3 Be3 g2 Qg4 f3 Rh4 a2 Bd4 Nd7+ Ke6 Ra4 Kf7 e5 Na3 e4 Rc1 e3 Bg7 e2 Nb5 Re4 Rc2 Ne7 Qg3 Rg8 h8Q Ng6 h7 Bd6 Qh3 Be5 Qh1 Bd4 Rh2 Qh4 c6+ Kb8 c7+ Kb7 Nh3 g1Q Ng5 Qgg3 Bh3 f1Q Be6 f2 Nf3 Qd1 Rh3 Re8 Qf8 Nde5+ Kg8 Rd8 h8Q Rd6 Rh2 Rc6 Qa3 Rc5 Qh5 Nh8 Kf8 Rc6 Qg5 Rc3 Qd2 Rd3 Qc3 Bd7 Ng5 Nf3 Rh3 Ng1 Nf3 Qhg5 Rh5 Q5h4 Rf5 Rd2 Rf7 Bc8 Rd7 Rd3 Rd8 Bd7 Rc8 Rd2 Bg8 Bh3 Be6 Bf1 Qab2 Ka6 b7 Kb6 b8B Kb7 Rc1 Rc2 Qa3 Rb2 Rc2 Rb1 Bg8 Qd3 Bf7 Re1 Be6 Qd1
1r1rR2Q/1Np3N1/3P1n2/q1RpKP2/Q2Q4/B2bp3/2qrp1b1/1n1kN1B1 w - - 0 1 illegal: No proof kernel
1R1Rb3/p1k4b/P1q2r1Q/2Nr1N2/1B1rP2R/3p3p/3p2nn/KB3rBQ w - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 h3 exd4 c3 gxh3 Bb2 b5 Nd2 b4 Bg2 b3 Nb1 Bd6 Bf1 Bc7 Ba3 Ba5 Bc1 Bb4 cxb4 Kf8 Nd2 Kf7 Nb1 Ke8 Kd2 g5 f4 d5 a4 Kd7 c6+ Kc7 f5 h5 b5 h4 a5 g4 f6 d3 Kc3 g3 Kb2 d4 a6 g2 e3 d2 f7 h2 f8Q Nh6 Nf3 g1R Bd3 Qd6 Nc3 Ng4 Na4 Rh5 Rb1 Bd7 Qh6 Be8 Ka1 Rd5 Ba3 Rf1 Bb4 Nd7 Nc5 Nf8 Bf5 Ng6 b6+ Kd8 b7 Kc7 Rb2 Rd8 Bb1 Nf4 Qc1 d3 Nd4 Ng2 Nf5 Rd7 Qd1 Rf7 Qe1 Rf6 Qd1 Rf4 Qc1 Rfd4 b8B+ Kc8 c7 Qc6 e4 h3 Rf1 h1R Rf4 Nh2 Rh4 Re1 Ne6 Kd7 c8R Rf1 Qe1 Bh5 Rg8 Be8 Nc5+ Kc8 Bg3 Kd8 Bf2 Kc8 Rc2 Kc7 Bg1 b2+ Ka2 Bf7 Rd8 Be8 Rc3 Bh5 Rb3 Be8 Bc2 b1B+ Ka1 Ba2 Bb1 Rd7 Rb2 Bg8 Qd1 Bh7 Qf3 Ne3 Qh1 R4d5 Bc3 R7d6 Rbb8 Ng2 Bb4 Rd4 Bc3 Rd7 Bb4 R7d5
1B2R3/3Rq3/bKn1rQ1n/1p1nP3/p2Nr3/pq3B1N/p1QP1r1k/4NB2 w - - 0 1 illegal: Other
1Q3q2/2pB3R/2BNpbnp/2RNP2p/bK1b4/3Br2n/1n4Pk/Q5qN w - - 0 1 legal: proof: b4 a5 f4 b5 a4 g6 h4 axb4 c4 d5 cxd5 e6 h5 gxh5 f5 Kd7 Ba3 bxa3 f6 Ra6 Qc2 Rd6 Qc1 Ke8 Qc2 Rd7 Qd1 Re7 fxe7 Kd7 e8B+ Kd6 d4 b4 Kd2 b3 Kc3 b2 e4 a2 a5 Nd7 a6 Nh6 a7 Ne5 a8B Be7 Bd7 Bf6 Qe2 Qf8 Qd1 Ng6 Nh3 Ng4 Bac6 Nf2 Bd3 h6 Kb4 Rg8 Nc3 b1N Rf1 Na3 Rc1 a1B Rc2 Bb2 Qa1 Nc4 Rd1 Ba6 Rf1 Bb5 Rd1 Ng4 Nf2 Ba4 Nh1 Nf2 Rcc1 Nh3 Rd2 Bd8 Rf2 f5 Rd2 Ke7 d6+ Kf6 e5+ Kg5 Nd5 Kg4 Rf2 f4 Rf3 Nb6 Rc5 Bf6 Rg3+ Kh4 Rg5 f3 Rg3 Ngf4 Rg7 f2 Rh7 f1Q Be8 Bb3 d7 Ng6 d8Q Ba4 Qb8 Nc4 Bed7 Qf2 Nc3 Qg1 d5 Rg7 d6 Rf7 Nd5 Bd4 Bc8 Kg4 d7 Nb2 d8N Rd7 Nb7 Rd8 Nf2+ Kg3 Nh1+ Kh2 Nd6 Rd7 Qa7 Rd8 B8d7 Ra8 Qb8 Ra5 Rc1 Rc5 Rc2 Rc3 Rc1 Ra3 Rc5 Rc3 Bf5 Rf3 Bd3 Re3
b1RN4/Q1ppRqRb/1r2BQ1p/q2n4/2p1b1P1/2B1K1Pq/8/r2N2kB w - - 0 1 legal: proof: d4 b5 b4 e5 g4 exd4 f4 g5 c4 bxc4 a3 Nc6 b5 Nb4 axb4 gxf4 Ra3 Be7 Ra1 Bh4+ Kd2 Bg3 hxg3 Ba6 Ke1 Bc8 Kf2 Ke7 e4 Kd6 e5+ Kd5 e6 Ke4 b6 a5 b5 f5 b7 h6 b8R d3 b6 f3 b7 f4 e7 d2 e8B a4 Rh5 a3 Rf5 a2 Bh5 Ne7 Bf7 Nd5 Be8 Qe7 Bg2 Qf7 Qf1 d1B Bh1 Bc2 Nc3+ Kd4 Rb1 a1Q Rg5 Be4 Nd1 Qa5 Bd2 Rg8 Nh3 Rg6 Bb4 Rb6 Rg7 Raa6 Ra8 Ra7 b8Q Bb7 Ng5 Bc6 Ke1 f2+ Kd2 f3 Qb7 Raa6 Qa7 Bb7 Rb8 Ba8 Rc8 Bh7 Ne6+ Ke4 Qg2 f1B Nd8 Bd3 Qf1 Kd4 Rb3 Bde4 Re3 f2 Re2 Qh5 Bf7 Qh3 Qe1 f1Q Be6 Qf7 Qf1 Qc5 Re1 Ra1 Qf4 Qb5 Ke2 Qa5 Qg5 Bg2 Bc3+ Ke4 Kd2+ Kf3 Qf6+ Bf5 Nb2 Kf2 Re2+ Kg1 Nd1 Bh7 Re5 Nf4 Ke3 Bae4 Bd5 Bgf3 Re7 Bg2 Be6 Ba8 Qg6 Bge4 Qf6 Nd5+
4Nb2/r1ppq1R1/RPPr1r1n/1q1q3K/NQ2b1pQ/3B1Q1B/N6p/6k1 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 e5 g4 exd4 a4 f5 b5 b6 Ba3 Nc6 Bb4 axb4 a5 Ne5 axb6 Nf7 Ra3 fxg4 Ra1 g3 Nc3 g4 Nb1 Ng5 hxg5 Bb7 Ra3 Ba6 Ra1 Bc8 e4 Ke7 c4 Ke6 f4 h5 f5+ Ke5 b7 Kf4 b8Q Ke3 b6 g2 g6 b3 g7 d3 f6 b2 e5 h4 c5 h3 f7 Rh4 e6 Rh7 e7 Ra5 e8N Qe7 c6 Rb5 Ra6 Qf6 Ne2 g1Q Nec3 Rh6 Na4 Qe7 Nbc3 b1Q Na2 Ra5 Qa8 Bb7 Qd8 Qb5 Qb1 Rg6 Qb4 Nh6 g8B Qg2 Bh7 Qgd5 Bg2 Re6 Rf1 h2 Bh3 Rd6 Rf5 Bc8 Rg5 Rf6 Rg7 Kf3+ Kd2 Kf2 Be4 Kg1 Ke3 Rg6 Kf4 d2 Bd3 d1R Kg3 Rf6 Kh4 Re1 Rg8 Ree6 Rg5 Rd6 Kh5 Bg7 f8Q Bb7 Ra8 Ra7 Qf7 Ba6 Qf8 Rf4 Qf5 Bf8 Rg7 Qee5 Qdg5 Qe7 Qfe4 Rff6 Qf3 Qa5 Bf5 Bd3 Qh4 Rb7 Ra6 Qab5 Rg5 Bc2 Bg6 Ra7 Bd3 Nf5 Rg7 Bb1 Be2 Be4 Bd3 Nh6+
Q6R/1P1pK2r/R1N3Pn/1pB1Q1B1/qq3pp1/1Q6/1Bqk3n/2bnNr2 w - - 0 1 legal: proof: a4 g5 f4 Nf6 a5 Ng8 a6 bxa6 g4 Bb7 Ra4 Be4 Ra1 Bg6 f5 Nf6 fxg6 Ng8 d4 h5 gxh5 e5 b4 exd4 b5 c6 b6 Bc5 Bg2 Be7 Be4 Ba3 Bd3 Bf8 Bb5 cxb5 Kd2 Ke7 Kd3 Kf6 Ke4 d3 Kd5 Kf5 h4 a5 c4 g4 h6 a6 c5 d2 e4+ Kf4 h5 Ke3 e5 f5 h7 a4 h6 a3 b7 a2 c6 a5 c7 a4 c8Q a3 e6 Qc7 e7 Nc6 e8Q+ Ne5 Nf3 Qc2 Ne1 f4 Bb2 Be7 Nc3 Nf3 Ne2 Nh2 Nd4 Ra6 Qb1 d1N Nc6 Kd2 Qa8 Bc5 Bf6 Be3 Kd6 Ra5 Qb3 Ra7 Rc1 a1Q Qe5 a2 Bg5 Qac3 Rb1 a1Q Rc1 Nf6 Ke7 Qa4 Ra1 Ne8 Ra3 Nd6 Ra1 Rb8 h8B Qcb4 h7 Rg8 Bg7 Rh8 Bf8 Nf7+ Kf6 Rg8 h8B Rg7 Bc5 Rh7 Ke7 Bd4 Qe4 Bb2 Bd4 Bc1 Bb2 Nf3 Rh6 Nh2 Qe5 Ra6 Nd8 Rd6 Nc6 Rd3 Rh3 Rf3 Rh5 Rf1 Rh3 Rg7 Rh8 Rh7 Ra2 Qbc4 Ra1 Qab4 Ra5 Qa4 Ra7 Qcb4 Ra6 Nh6+
Q1qNk3/p1QN1R2/b3K3/3PB3/R2rn1rp/B1pNP1q1/1brR1p2/7b w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 h4 gxf4 a4 b5 axb5 e5 g5 Nc6 Bg2 Nce7 h5 e4 Bf3 Ng6 hxg6 exf3 Kf2 h5 b4 c5 d4 f5 e3 h4 d5 c3 g7 c4 b6 c2 b7 Rh5 b8N Qe7 b5 Qc5 g6 Qa3 b6 Qb3 b7 Qc3 Na3 Nf6 g8R Qb3 g7 Rg5 Rh2 Rg4 Nh3 c3 Nb5 Qc4 Ba3 c1R Nd7 Rc2+ Qe2 Rb8 Nd4 Qc5 Ne6 Ne4+ Kf1 f2 Qc4 Qd6 Qc7 Qc6 Rh8 Qd6 Rh7 Qe5 Bc1 Ba3 Nd8 Bb2 Ra4 Qd6 g8Q+ Qf8 Qh8 Qg8 Bd2 Qf8 Ke2 f1B+ Kf3 Bg2+ Ke2 f3+ Kd3 f2 Kd4 f1Q Ke5 f4 Bc1 f3 Nf2 Qd3 Ke6 Bh1 Rf7 Qd2 Rg2 Qe1 Nd3 Qg3 Rd2 f2 Qg8 Ra8 b8B Ba6 Qb6 Rf4 Be5 Rc8 Qb8 Rc4 Qc7 Rg4 Qh8 Ba1 Ba3 Bb2 Qf6 Rb4 Qf4 Qc5 Qb7 Qc8 Qa8 Nf6 Qc4 Ne4 Qc7 Rd4
1R3RbN/p7/q3p1p1/1Bb3Q1/1PKN2B1/krR5/b4P1p/1BqqQrn1 w - - 0 1 legal: proof: e4 b5 g4 d5 h4 dxe4 b3 f5 h5 b4 h6 c5 Bb2 c4 a3 c3 axb4 cxb2 b5 Nd7 Rh2 Ndf6 Rh1 Nh5 Ra3 g6 Ra1 Ng7 hxg7 fxg4 Ke2 Kd7 d4 Kd6 c4 h5 d5 Kc5 b6 Kb4 d6 e3 Kd3 g3 b7 h4 b8R+ Qb6 d7 e2 d8Q e1Q c5 g2 c6 h3 c7 Bb7 c8B Nh6 g8B Bd5 Bg4 Nf5 Ra3 Nh4 Ne2 g1Q Nbc3 Nf3 Nb5 Qa6 Nd4 Rh7 Qa1 Qc1 B8e6 Rh5 Bef5 Bg8 Be4 e6 Qg5 Bc5 Bef5 Qb7 Nd6 h2 Nf7 Rh3 Rf8 Rd8 Nh8 Rd7 Be2 Qgf1 Rg1 Qb6 Rg3 Ng1 Rb8 Rb7 Rf3 Rg3 Be4 Rg2 Rff8 Qcd1+ Ke3 b1B Bb5 Ba2 Bb1 Qc1+ Ke4 Qfe1+ Kd3 Qa6 Qb2 Qf1+ Qe2 Qfd1+ Ke4 Kc3 Qe1+ Kb2 Ke5 Rg3 b4 Rd7 Rc3 Rd8 Rc4 Rb3 Rc3 Ka3 Bgf5 Qh5 Bg4 Rd5+ Ke4 Rd8 Kd3 Rc8 Bf5 Qhd1+ Kc4 Rd8 Bg4 Rd5 Qe4 Re5 Qh1 Re1 Qe4 Rf1 Qee3 Qcc2 Qe1 Qcc1
2NNrQ2/2n4R/q2Q2BR/k1p4p/3n1B2/p2P2nP/pbBn1b2/n1Q1K3 w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 e5 a4 exf4 Nc3 b5 Nb1 bxa4 g4 a5 Qc2 f5 Qc3 a3 Qd3 a4 Qc2 f3 Qd1 Ra5 bxa5 f4 Nc3 Be7 Nb1 Bf5 gxf5 Bf8 e4 Kd7 f6 Kc6 f7 Kb5 h3 g5 d3 c5 e5 h5 a6 a2 e6 f2+ Kd2 g4 e7 f3 e8B+ Nc6 a7 a3 a8Q g3 Qb8+ Ka5 Be2 f1N+ Ke1 g2 Bf4 c3 Qc1 c2 Nd2 Qd6 Rb1 Nf6 Rb6 Nd4 Bd1 Ng3 Ne4 Bg7 f8Q Nd5 Bg6 Nc7 Ne2 g1B Rc6 Qf6 Nd6 Be3 Nc8 Qe6 Qd6 Re8 Rf1 Qc4 Qf8 Qa6 Re6 Bf6 Re7 Bh8 Rh7 Be5 Nc3 Bh8 Nb5 Bg7 Nba7 Be5 Qcb2 c1N Bc2 Ncb3 Qc1 Na1 Rh6 Nce6 Qbd6 f2+ Kd1 Nc7 Nc6+ Kb5 Rg1 f1N Nd8 Nd2 Ke1 Ka5 Rf1 Ndf5 Rf3 Bb2 Rf2 Nd4 Re2 Bg1 Re7 Be3 Reh7 Bf2+
N1R1bk1b/4nB2/1Q2K1n1/PqPQ1b1p/1p1N1pR1/N1B1p3/4n2R/n4r2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 e4 e5 f3 d5 exd5 b5 f4 e4 Bd2 Ra7 Be3 Re7 Bc1 Re5 fxe5 Bd6 Kf2 Bc5 Ke1 Bf8 Kd2 h5 c4 f5 a4 f4 g4 e3+ Kd3 b3 Ke4 h3 a5 d3 g5 b4 d6 d2 Kd5 h2 e6 b2 g6 Qe7 c5 Bg7 d7+ Kf8 d8Q+ Qe8 Na3 b1N Qb6 Qb5 Bc4 Nd7 Nf3 Ne5 Nd4 Ne7+ Kd6 Rh7 Bb2 Bh8 Bc3 Rg7 Ra2 Bd7 Rg1 h1N Rg4 Ng3 Qh1 d1B Rh2 Be8 Qd5 Nd2 Ba2 Bc2 Bb3 Rf7 g7+ Kg8 Bc4 Ne2 Ba2 Bf5 Bb3 Kh7 g8R N5g6 Rf8 Kg7 Bc4 Bc6 Rc8 Be8 Ba2 Rf8 Bc4 Rg8 Bb3 Nc6 Bc4 Nb3 e7 Na1 Bb3 Bf7 e8N+ Kf8 Nc7+ Be8 Na8 Nce7 Qdb7 Nh4 Bf7 Rg5 Qd5 Nhg6 Rgh4 Rg1 Rg4 Bb1 Ke6 Rf1 Bb2 Bd3 Bc3 Bf5+
B1Qnr3/Q1N1B1p1/r1RK1rP1/2B2NP1/1pq4R/6pp/b2n3N/n1k4n w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 d5 cxd5 a5 h4 axb4 g4 Ke7 g5 Be6 Qb3 Bc8 Qg3 fxg3 g6 Ke8 Na3 Be7 Nb1 Bg5 hxg5 Bg4 Bh3 Bf5 Bf1 Bc8 a4 Kd7 d4 Kd6 Kd2 c5 Kd3 h5 Kc4 f5 e4 h4 a5 h3 a6 b3 a7 f4 Ne2 f3 Ba3 b2 Bg2 f2 Rc1 f1R Nd2 b1N Nf3 Nh6 Nh2 Re8 Kb5 Nc6 e5+ Kd7 e6+ Kd6 e7 Qc7 Rc4 Nd2 Rac1 Ng4 Rb4 c4 Bh1 Rb8 a8Q c3 Qa7 c2 Bg2 Nf2 Be4 Kd7 Kc5 b5 d6 Ke6 d5+ Ke5 d7 Nh1 d8Q Ra8 d6 Be6 d7 Ba2 Nd4 Kf4 Qc8 Ke3 d8B Rf6 Nf5+ Ke2 Ra4 Qf4 Bb6 Nd8 Bg2 Qf1 Rh4 Kd3 Bd5 Kc3 Bf3 Kb3 Kd5 Qc4+ Ke5 Kc3 Bbc5 Kb3 Bab4 Kb2 Bd5 Rb8 Ba8 Rbb6 Ne3 Ra6 Nf5 Ref8 e8N Rg8 Rf1 c1N Nc7 Ncb3 Rc1 Na1 Rc3 Re8+ Be7 Qb3 Rc6 Qc4 Bd6 b4 Bc5 Rf7 Kd6 Kc1 Bb6 Rff8 Bc5 Rf6+
q1rKb1B1/N1n1RN1n/P4R2/7p/QpRp3r/1B1Pp3/2q3BQ/1qkq4 w - - 0 1 illegal: No possible last move, all moves rejected
1r6/qQnB1p2/1N5p/P2K1R2/1r1RPb2/r4Bp1/pNk1q3/Qn2rQN1 w - - 0 1 illegal: No proof kernel
1kb2Brn/N1b2p2/P5pB/1n3b1Q/p1P1p3/3q1bN1/QK2Rq2/1RB3N1 w - - 0 1 illegal: No proof kernel
KQq1R3/4R2b/nP1qq1pN/1n2N1kB/8/q1B1P2p/Rp2BQp1/5q1r w - - 0 1 legal: proof: d4 e5 g4 exd4 c4 f5 b4 fxg4 Nh3 a5 Ng1 axb4 Ba3 b3 Bb2 Ra6 Bc1 Ra8 h4 b5 h5 g6 h6 Bg7 hxg7 b4 Kd2 Ra5 Ke1 Rb5 cxb5 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 Ke7 Kd3 Kf6 Ke4 c5 Kd5 h5 f4 b2 a4 c4 f5 h4 e3 g3 a5 b3 b6 d3 a6 d2 a7 g2 a8Q c3 Ra2 c2 Nc3 b1Q Nf3 Na6 Ne5 Nh6 g8B Nf7 Qb8 Kg5 f6 Nd6 f7 Nb5 Qf3 d1Q+ Bd2 c1Q f8R Qa3 Qf2 b2 Be6 Qg4 Be2 Qf1 Nd1 d6 Kc6 d5 Rh2 d4 Re8 d3 Bc3 d2 Bf5 Qh3 Bfg4 Be6 Kb7 Qc8+ Ka8 Bg8 Bh5 Qhe6 Rh3 Rh6 Rf3 Rh8 Rf7 Bh7 Rb7 h3 Rbe7 Rf8 Qg1 Rf5 Nf2 d1Q Nfg4 Qdd6 Qf2 Rf4 Nh6 Rd4 Qe1 Rd1 Qd2 Qff5 Qc2 Rh1 Qd2 Qf1 Qe1 Qd1 Qf2 Qdd6
1nk1N3/nrN2p2/N1BB4/2q2p2/1q1nPK1n/1PRR4/Qb2pQp1/1n1Q4 w - - 0 1 illegal: No proof kernel
5NQ1/1r4p1/N3KnRq/b3rB1p/3RN3/RP2kB2/qpQp1r1P/qq6 w - - 0 1 legal: proof: b4 b5 d4 e5 Be3 exd4 Bc1 a5 Bb2 axb4 Qc1 b3 Nc3 b4 Nf3 Ba6 Qd1 Bc4 Bc1 b2 Bd2 b1R Ng1 b3 Bc1 b2 Nb5 Na6 Na3 Nb8 e4 f6 f4 Bd6 g4 Ra4 f5 Qe7 e5 Be2 e6 Ra8 Bf4 Bc4 Be5 Bb3 cxb3 fxe5 Nf3 Nc6 Ng1 Qd8 f6 Nce7 Qc1 Bc5 Qd1 Nf5 gxf5 Bf8 Kf2 d5 Kf3 c5 Kg4 h5+ Kg5 e4 e7 Kd7 e8Q+ Kd6 Qc1 d3 Qc2 e3 Be2 d2 Nh3 d1Q Bg4 d4 Nb5+ Kd5 a4 c4 a5 c3 a6 e2 a7 e1Q Rg1 d3 Nc7+ Kd4 Na6 Bb4 Nf2 Rb8 a8B Ba5 Baf3 Rb7 Ra3 Qa8 f7 Nf6 Ne4 Ke3 f8R d2 Rf7 Rf8 Rd7 Qg3 Qf7 Qd6 Qg8 Qf1 Rd8 Re1 Kg6 Qc6 Rd4 Re2 Kg5 Qa1 Rg2 Rf2 Rg3 Re8 Bh3 Nd7 f6 Re5+ Bf5 Qd6 f7 Nf6 f8N Qb6 Qd1 c2 Kg6 c1Q Qc2 Qcb1 Rg2 Nd7+ Kf7 Qh6 Rg6 Nf6+ Nc7 Qf4 Raa4 Qh6 Ra2 Bb6 Raa4 Rd5 Ke6 Qa5 Na6 Bd8 Rab4 Q5a2 Ra4 Ba5 Ra3 Re5+
1B1B3K/N3N3/2P2P1r/1p3rRQ/B1Q1Rqp1/r3p1pQ/1k1p2n1/n2b2b1 w - - 0 1 legal: proof: g4 b5 d4 c5 b4 cxd4 e4 f5 exf5 h5 a4 hxg4 axb5 a6 b6 Rh3 b5 axb5 Na3 Rh4 Nb1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 c4 g5 h4 d6 f4 d3 h5 g3 b7 d2 h6 Qe8 c5 Qd8 h7 Ra6 Bc4 Ra3 Qh5 d1R Ne2 Rf1 Bb3 Nd7 b8B Qc7 Nbc3 Ne7 Nd4 Nd5 Ba4 Ne3 Nc6 Rg8 Na7 Rg6 c6 Ng2 h8Q+ Bg7 Kd5 e4 Rb1 g4 Rb4 Nc5 Be3 Nb3 Bb6 Na1 Q8h7 e3 Re4 Be6+ Kd4 Bb3 Nd5+ Kf7+ f6 Bd1 Ne7 d5 f5 Qf4 Bd8 Rf2 Kc5 d4 Kd5 d3 Qh3 Rf3 Q7h5 Bf8 Nec8 Bc5 Ne7 Bb4 Rf1 Be1 Rf2 Qh6 Ke5 d2 Rf1 Bf2 Rh1 Kf8 f7 Kg7 Rf1 Bg1 f8Q+ Kh7 Qe8 Kg7 Qd7 Rf2 Qd5 Rf4 Qc4 Rf2 Kd5 Kf6 Kd6 Rf3 Kd7 Qf4 Ke8 Qc7 Kf8 Rf4 Rd4 Ke5 f6+ Rf5 Rdf4 Rh6 Kg7 Rg6+ Kh8 Qd6 Qc2 Qc7 Rc4 Qd6 Rc5+ Kd4 Qb3 Qe5 Rf4+ Qe4 Qf7 Kd3 Re5 Kc3 Qc4+ Kb2 Rd5 Qe5 Re4 Qf4 Rdd4 Rc5 Re5 Rd5 Rg5 Rf5 Re4 Rh6+
2b1QRQq/1p1b4/pBp2B2/3pN3/k1P2R2/1pr1P3/n3RKn1/n2q2NB w - - 0 1 illegal: No proof kernel
N4R2/p2pB3/k1P1pnpN/qn1qrq1Q/Kp2Q3/8/1PrBRnBR/8 w - - 0 1 legal: proof: c4 c5 e4 h5 d4 cxd4 g4 hxg4 c5 e6 c6 b6 a3 Bb4+ axb4 f5 c7 Bb7 b5 Bc6 bxc6 fxe4 Kd2 b5 Kc2 d3+ Kb3 d2 c8R b4 f4 g6 h4 g3 f5 e3 h5 g2 f6 e2 h6 e1Q f7+ Ke7 f8B+ Ke8 h7 Qe4 Na3 Na6 Be7 Nf6 Nf3 g1N Ka4 Qf5 Nd4 Nh3 Nc4 Rb8 Qe2 Nc7 Nb6 Nb5 Na8 Nf2 Bg2 d1Q+ Qc2 Qdf3 Bd2 Q3d5 Rae1 Rf8 h8Q Rb6 Qh6 Rh8 Qg5 Rh2 Re2 Rb8 Qe4 Rb7 Bd6 Rb8 Bg3 Ke7 Bh4 Kd6 Qgg4 Kc5 Qh5 Qc7 Rf8 Qce5 Nc7 Kb6 Na8+ Ka6 Bhg5 Rh3 Rh2 Rc3 Bh4 Rc2 Bhg5 N6g4 Be7 Nf6 Nf3 Qc7 Ne5 Qd8 Nf7 Qb6 Qc4 Qa5+ Kb3 Qde4 Qc5 Nd6 Qd5 Rb5 Nh6 Qd4 Qe4 Re5 Rh4 Nb5 Rh2 Qc7 Ka4 Qd5 Qef3 Qb6 Qe4 Qa5#
r1Q4r/2rQNn2/p6B/pp3Kb1/2pN4/P1P4p/bB2Bkp1/Q1R1R2q w - - 0 1 illegal: No proof kernel
1B1R4/BRqr1p2/1p4Kp/1pB2p1N/1rpN1q2/2P1Q1N1/1knnP2n/6Q1 w - - 0 1 illegal: Other
1q6/n4BKB/n1RN2R1/B1r1rr2/q1r1rQP1/b4bbk/2q1Q2P/N2N1n2 w - - 0 1 illegal: No proof kernel
1q4b1/Q2r4/2nQNn2/n1qPn1q1/1BRR1NPn/bN1Q2r1/1bBr3k/K7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Ke7 d4 Kd6 Kd2 c5 Kc2 h5 b4 a5 Kb2 f5 g4 f3 d5 Ke5 b6 f2 b7 a4 b5 f4 b6 f3 Rh2 c3+ Ka2 c2 Qd2 c4 Bh3 f1Q Ba3 c1N+ Kb2 c3+ Kc2 f2 Be7 a3 Ra2 Nd3 Bg2 h3 Bg5 h4 Bh1 Qc1+ Kb3 f1N Qe1 c2 Qd1 Be6 Be7 Kf4 e5 Kg3 Rf2 h2 Bf3 h1R Qd2 h3 Bc5 h2 Bd1 Qg5 Be7 Ra7 Re2 Nf6 Nh3 Ne3 Nf4 Ng2 Re4 Rh3 Bb4 Nh4 Rc4 Bg8 e6 Nc6 b8Q Rd7 b7 Nde5 e7 Re1 e8N h1Q Qd4 Re2 Ng7 Qh2 Qd6 Rd2 b8Q Be7 Rb2 a2 Qba7 a1N+ Ka2 Nb3 Nge6 Nba5 Ka1 Bf8 Ra2 Qa3 Qe4 c1B Bc2 Qe3 Ra4 Qc5 Ng6 Be7 Qd3+ Kg2 Rd4 Qg3 Ngf4+ Kh2 Qf1 Qb3 Qd3 Rg3 Rc4 Rd1 Nd2 Bf8 Bc3 Qb8 Nb3 Rd2 Rd4 Qcb5 Rac4 Q5b6 Qdc7 Bfa3 Bb4 Qc5 Qd6 Bcb2+
nnb5/KBnR4/Nqq2R2/BkP2bb1/8/1q2NrP1/r1nr3Q/1N1n2RQ w - - 0 1 illegal: No possible last move
knKbQ1Rn/4nb2/1BRPN1r1/2qr1N2/2BQqB1r/n3P2q/8/2Q3bn w - - 0 1 illegal: No possible last move
K3NR1R/n3k3/2P3QB/1q1q1B2/2qqnPr1/1rQB4/1n2b1rq/bbR3N1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 c4 d5 b4 a4 g5 a3 g6 e3+ Kd3 e4+ Kc2 a2 Kb3 h3 g7 h4 c5 e2 b6 e1R b5 h2 Kb4 h3 b7 e3 b6 d3 Kb5 d2 Nc3 d4 Nce2 d3 Bg2 Bf5 Bf1 Nf6 g8B Ra3 Bd5 Rh4 Bb2 Rg4 Qa4 d1B Ng3 e2 Rc1 a1Q Qc4 d2 Bc3 Ne4 Qd3 Bg7 Be5 Qb1+ Bb3 Nc6 b8Q Ke7 b7 Qd4 Kb6 Na7 Qh8 Qc2 b8R Qcc4 Bc2 Rb3+ Kc7 Qb5 c6 Bh7 Bg2 Rf1 Nh5 e1Q Qg3 Be2 Nf6 d1N Ne8 Qec3 Bd3 Qcc4 Qg8 Bf6 Qg6 Rf2 Rc8 Bh8 Bg7 Nb2 Bh6 Bg7 Bf3 Rg2 Qe1 Nf6 Bd5 Ne4 Be6 Bf6 Bf5 Bg7 Nf3 Bh8 Qc3 Bf6 Rhf1 h1Q Ng1 h2 Rf3 Bg7 Rh3 Bh8 Nf3 Qd1 Ng1 h1Q Rh4 Qdd5 Rh5 Bd4 Rh4 Qh2 Rb8 Bb6+ Kb7 Bd4+ Ka8 Be5 Nf6 Qd2 Rf8 Qe3 Rh3 Qed4 Ne8 Qcc5 Qe6+ Kd8 Bg6 Nf6 Bc4 Qf2 Qd3 Nd1 Bg7 Ba1 Qc3 Nb2 Be4 Bf5 Rhh8 Qfd4 Bh6 Qcb4 Qg8 Ke7 Qg6 Q4a4 Bf3 Bb1 Bd3 Qab4 Bfe4 Qb4c4 Bf5 Ne4
rRR4q/2Q3P1/kq2bbrB/N1q1b1R1/2r5/nN3K1Q/q1n3P1/N1nBq3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Ke2 b5 c4 d5 f4 Kd7 a4 Kc7 c5 Kb7 f5 h5 c6+ Ka6 g6 e5 f6 b3 f7 e3 c7 h4 g7 d3+ Kf3 e2 a5 e1Q Ra3 e4+ Kf4 b4 Qg4 d4 Nf3 e3 Qf5 b2 Qf6+ Bd6+ Ke4 h3 f8Q e2 Qg5 d2 Rg1 d1Q Qd2 b3 Qf7 h2 Ne5 h1Q Qe6 d3 Kf3 Nf6 Qe8 Rh4 Qg5 d2 Qg4 Nc6 Nd3 Be5 Qf4 Nh5 Qh8 Be6 c8R Qc2 Ra2 d1R Nd2 Bf6 Qc7 b1N Qh7 b2 Nb3 Qe7 Na1 Na3 Bh6 b1Q Nc1 Qb6 Ncb3 Qec5 Rb2 Qh2 Rh1 Nb4 Qf5 Rc1 Qh3 Rc4 Rb1 Nf4 Rb2 Kb5 a6 Nfd3 a7 Ka6 Rb1 Qa2 Rb2 Rb8 a8N Nbc2 Rb1 Rg4 Rb2 Rg6 Rb1 Qbb5 Nb6 Ra8 Nc4 Qbb6 Nca5 Be5 Qg4 Qhh4 Qh3 Qd8 Rh2 Qh8 Rb2 Qd1 Rb1 e1B+ Be2 Bh4 Rb2 Qd2 Bd1 Bhf6 Rh1 Qdb4 Re1 Qh4 Re4 Qe1 Rg4 Ncb4 Rg5 Rc4 Rd2 Nc1 Rdd8 Nbc2 Rb8 Ne2 Rdc8 Nc1
5r1k/1bPNQQ2/q2bK3/qBq5/1nq1RN1r/BP1R2nn/1R1B2b1/2r3q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 Kf7 Kc4 Kg7 Kd5 h5 c4 a5 g4 d3 e4 h3 b3 h4 g5 f3 e5 d2 c5 h2 g6 f2 b6 a4 e6 h3 b7 f4 c6 a3 c7 f3 e7 a2 e8Q Nc6 b8B Bd6 Bb2+ Nf6+ Kc4 Bb7 Qee1 Nb4 Qc1 d1R Qee3 Qf8 Ba3 Rh4+ Qf4 Nfd5 Qc2 Rc1 Ne2 Kh8 Nbc3 Qf5 Ba7 Rf8 Qfe4 Nf4 Rb1 a1Q Be3 Qg5 Rg1 h1B Na4 h2 Nb6 Nh3 Nf4 Bg2 Rb2 h1N Qe7 Ng3 Bd2 Qa2 Be2 f1Q Rh1 Qf2 Re1 Qa5 Bf1 Qg1 Re4 f2 Kd4 Qa6 Bb5 Qa5 Qc4 f1Q+ Be3 Qgf2 Qcf7 Qc2 Bd2 Qe2 Na4 Qc6 Nc5 Qca6 Rb1 Qc2 Rb2 Qec4+ Ke3 Be5 Bc3 d5 Nd7 Qcc6 Be1 Q2c4 Bc3 Bf1 Kf3 d4 Be1 Rh7 Kg4 Q6c5 Bc3 Bg2 Be1 Nh1 Kf5 Bd6+ Kf6 Rh4 Bc3 Qf1 Ke6 Qg1 Be1 d3 g7+ Kh7 Rc4 d2 Re4 d1Q Bd2 Qdf1 g8R+ Kh6 Rg5 Qfc4+ Rd5 Ng3 Qf5 Rf7 Qh5+ Kg7 Qf5 Kh8 Qg6 Qc3 Rd3 Rf8 Qgf7 Q3c4+
1B1BKNk1/PqQ4r/1Pbn1b2/7Q/2Nn2bR/Rn2n2b/2RbBn2/5r1r w - - 0 1 illegal: No possible last move
2nk3B/1r6/2QNKnBb/bbb5/Q2q1n2/1P1PB1NR/qq2rb1b/NR6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 c5 e4 a5 h4 g5 d3 f5 b3 a4 h5 a3 b6 c3 e5 g3+ Kf3 c4 e6 g4+ Kg2 a2 e7 c2 b7 c3 h6 Nc6 b8Q Ba6 h7 Ra7 Qa8 Rb7 Qa7 Bb5 Qc5 Qd4 Nh3 Nf6 Ng5 Na7 Nf3 Nc8 Ba3 c1Q Ne5 c2 Rh3 f3+ Kh1 f4 Bb2 g2+ Kh2 g1B+ Kh1 g3 Be2 f2 Kg2 f1N Kf3 g2 Ng4 Bf2 Ne3 g1B Nf5 Ne3 Na3 Bh2 Ng3 Ng2 Rb1 a1B Qc3 Kd7 e8N Kd8 Qc6 Bc5 Nd6 Re8 h8B Re6 Bc3 Qb2 Bd2 c1B Nc2 Qa2 Qh1 Bc3 Na1 Ba5 Bd1 Re2 Be3 Ne8 Kg4 f3+ Kf5 Nf4 Qa6 Nf6 Qg2 Bfe1 Qa8 f2 Qc6 f1Q Qaa6 Bf2 Qa8 Rd2 Bh5 Re2 Bg6 Qd1 Qa7 Qdc2 Qa8 Qcb2 Qa7 Bae1 Qa4 Ba5 Bd2 Ng2 Bg5 Bce3 Ke6 Rd2 Bh4 Bh6 Bg5 Re2+ Be3 Nf4+
1n6/2Kb1q1R/1b1r3Q/Nr1Bk2q/1P4P1/1bn2R2/nB2n1Nq/1Qn1nNQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 Kd5 h5 c4 a4 e4 d3 b4 f3 g4 a3 c5 d2 c6 f2 c7 a2 b6 h3 b7 h4 Qb3 d1N Bd2 h2 Bb5 f1N Nc3 h3 Rc1 a1N Qb1 Nfe3+ Kd4 d5 Nf3 Bc5+ Kd3 d4 Bd7 Qe8 Ne5 Ra5 Be6 Ng2 Kc4 d3 Kd5 Nb3 Qc2 Bb6+ Kd6 Ne1 Bh6 d2 Nb1 Ne7 Nf3 Bd7 c8Q Nd5 Q8c6 N1c3 Nh4 d1B Nd2 Na2 Nf1 Rb5 Qb1 Ndc3 Bd5 Rf8 Rc2 Nbc1 Ng2 Rh8 Re2 Bb3 Re3 Qg8 Bf4 Rh6 Rf3 Qg5 Qc5 Qh5 e5+ Kg7+ e6 Kf6 Rg1 h1Q e7 h2 e8Q Rg6 Qee3 Rh6 Nh4 Qg2 Qc6 h1N Qf2 Qg3 Ng2 Qgh2 Qe3 Ng3 Rh1 Nge2 Qg1 Rg6 Be5+ Kg5+ Ke7 f5 Qe6 f4 Kd6 Nd1 Bb2 Ndc3 Rh3 f3+ Rg3 Bc5+ Kc7 f2 Qb6 Rd6 Rf3 Qf4 Qa6 Kf6 Qc6 Ke5 Rh2 Qhf7 Rh7 Qh2 Qb6 Qfh5 Qa6 Nc6 b8N Ba7 Qc8 Bd4 Qf8 Ba7 Qh6 Bd4 Na6 Nb8 Nc5 Be3 Nb7 Bd4 Nfe3 f1Q Na5 Qf2 Nf1 Ba7 Rh3 Qff7 Rf3 Bb6+
1Q4rb/2nrbBR1/qb1nB3/1R1P2R1/K2k1r1B/b5Nb/Qq1Pq3/5b1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Kd7 e4 Kd6 a4 Ke5 a5 f5 a6 c5 h5 b5 a7 g5 h6 b3 h7 b2 Na3 b1R Rh4 c4 Bd3 g3 Qa4 g4 Kd1 g2 Kc2 b4 Qa6 f3 Ne2 g1B Qg6 f4 Ng3 c3 Bf1 f2 Be2 f1B Qc6 b3+ Kd1 b2 Kc2 f3 Kb3 c2 Qc7+ Qd6 Nh1 g3 Rg4 g2 Ka4 f2 Nc4+ Kd4 Rg7 Na6 e5 Ne7 e6 Nf5 e7 Rg8 e8B Be7 Qa5 Nc7 h8R Qa6 Bf7 Nd6 Rh5 Bh3 Bg4 Rad8 a8Q Rd7 Qb8 Bh2 Rhg5 g1B Bge6 Be5 Ne3 Qe2 Rh7 Bh8 Rhg7 Qa6 Ra3 Ra1 Ra2 b1Q Ba3 c1B Rb2 Ra2 Rb6 Rc2 Bb4 Rc4 Rb5 Ba3 Nf5+ Kd3 Qa7 Qb2 Nfg3 Rf4 Qb8 Kd4 Qa8 Bfg2 Qb8 f1Q Bc3+ Kc4 Bf6 Qe2 R5g6 Bd4 Bh4 Bf1 Rg5 Bb6 Be8 Qa1 B8f7 Kd4 Kb3 Bb2 Qa2 Qc1 Kb4 Ba3+ Kb3 Qb7 Ka4 Qb2 Bh5 Qc8 Bhf7 Qa6+
Nr2B3/nQ2n2n/1Rr3N1/PnR1qk2/1P2bBb1/q3q3/1n1R2Q1/b3nK1N w - - 0 1 illegal: No proof kernel
1RR1Q1q1/KnN4Q/3nnbbP/P4qkr/BBn2rnN/8/1Q4b1/N1n3r1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kf6 h4 b5 d4 g5 a4 c5 d6 f3 Ke3 f2 d7 c4 d5 g3 Kd4 c3 h5 b3 d6 g2 Kc5 c2 a5 g4 Nh3 g1N Bd2 c1N Na3 b2 Rb1 b4 Be2 f1N Bc4 g3 Be6 g2 Bh6 b3 Qe1 Nf3 Bf4 g1R Qg3 Na6+ Kc6 Bg7 Bh6 N1h2 Qf2 Ng4 Nc2 Nc5 Nf4 Ng5 Na1 Nb7 Rh3 Ra7 Rc3 Ne7+ Kb5 Ra6 Ng2+ Nf5 Nh4 Qg8 d8N Ra8 Bc4 Ne6 Kb6 Bd7 Bf4 Be8 d7 Nfd6 Bb5 Rc8 Ba4 Rc4 Be5+ Kg5 Ka7 f5 Qg2 Rb4 Rc8 f4 Bc3 f3 e5 Rf4 Bb4 f2 Qe4 f1B Qh7 Bg2 h6 Bf6 Bc3 Bg6 Bb4 Nf8 e6 Rh1 e7 Ne6 e8Q Rh3 Nf5 Rh5 Qg7 Rh7 Qh8 Rf7 Qh7 Rf1 Nh4 Rg1 Nc6 Rf8 d8Q Rf7 Qb6 Rf8 Ne7 Rf7 Nc2 Rf8 Ra1 b1Q Nd5 b2 Nc7 Rf7 Ra3 Rf8 Na1 Qf5 Ra2 b1N Rb2 Na3 Rb3 Rf7 Qd4 Nac4 Qb2 Nbc5 Bc3 Rf8 Rbb8 Ncb7 Bb4 Qf3 Nb3 Bg7 Nd2 Qd5 Nb3 Rf4 Na1 Qf5 Bc3 Be5 Bb4 Bf6
3BBqK1/1r1qQ1Br/Q1n2P2/1Nb2b2/8/2q1Pq1R/r1bNR1N1/qn2q1k1 w - - 0 1 illegal: No possible last move
2N1K3/rr2PP1k/2n3b1/r1QB1nR1/B2b3q/1n1NB1r1/2rr2bQ/R4N1q w - - 0 1 illegal: No proof kernel
R5N1/bPNP1bQ1/q1qbrN2/QR1n4/b1b3n1/3r4/qBRb1n1k/K4B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Ke7 Kd2 Kf6 Kc3 Kf5 b4 Kg4 Kb2 Kg3 e4 c5 b6 a5 d5 h5 b5 f5 b7 f3 d6 a4 b6 h3 e5 h4 e6 f4 e7 c3+ Ka2 a3 e8R f2 Ba6 f1B Qd5 h2 Re4 f3 Bd2 f2 Rf4 c2 Bc3 c1Q Qh5 h3 Bd3 c4 Rf6 Rh6 Re6 Ne7 Bb2 c3 Re2 c2 Nd2 Bd7 Qc5 Nbc6 b8N Ne5 b7 Qb6 Ngf3 Nd5 Nh4 Re6 Bb5 Bc6 d7 Bd6 Rg1 Ra5 Ng6 h1Q Ne7 h2 Bc3 Ra4 Re4 Bd3 Ba5 Rd4 Re2 Bg6 Bc3 f1B Na6 Bf7 Nc7 Qa5 Rf2 Bd3 Rd1 Qf1 Re1 h1N Ne4+ Kh2 Nf6 Qa4 Bc4 Qe3 Reb1 c1B Rc2 Nf2 g4 Bd2 g5 Neg4 g6 Qfe2 Rb4 Qb5 Kb1 a2+ Kb2 Qb6 g7 Bb5 g8Q Qc6 Qg7 Qh3 Rac1 a1B+ Ka2 Bb2 Ra1 Ba3 Rbb1 Qhf3 Qa7 Bac5 Neg8 Qfe3 Kb2 Qf1 Ra6 Ba4 Ka1 Be2 Qb6 Qd3 Qb5 Bb6 Ra8 Ba7 Qa5 Qfh3 Bb3 Qda6 Bc4 Qf3 Rb5 Bf1 Bb2 Qb3 Bd3 Be2 Be4 Bc4 Bg2 Rd3 Bf1 Qa2#
N1rR3Q/P1qNk1Kb/q5n1/B1R1b2q/4b3/4b3/PNBQRr1b/2r1n2b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 Kf2 g5 c4 f5 e4 b5 h4 d5 a6 f3 Kg3 f4+ Kh2 b4 c5 d3 h5 d4 a7 f2 h6 f3 Kg3 d2 h7 b3 c6 d3 c7 b2 e5 Nc6 e6 Ne5 e7 Bg7 Be2 f1B Qe1 d1Q Nd2 b1B Rh4 f2 Rh3 Bb7 c8R Be4 Bf3 Bg2 Ne2 f1Q Nf4 Bh1 Rc7 Rc8 Rc5 Qc7 Bg2 Nf3 Nb3 d2 Rh2 Qa6 Bb2 Bbc2 Bc3 Be5 Ba5 Bcd3 Qe3 Ne1 Bf3 Kd7 e8N Ne7 Re2 Rf8 h8Q Ng6 Rac1 Kd8 Rd5+ Ke7 Rd8 Rf6 Nc5 Rf8 Nd7 Rf6 Kh2 g3+ Kh3 g2 Kg4 g1B Kh5 g4 Kh6 g3 Rc5 g2 Kg7 Bh2 Bh5 Bb1 Nd3 g1B Nb2 Bbc2 Qeh6 Be3 Bg4 Bb1 Be6 Bbc2 Bb3 Bcd3 Bc2 Rf2+ Kh7 Qb1 Qf4 d1R Kg8 Rc1 Kh7 Qcc6 Nc7 Qcb7 Na8 Qc7 Nc4 Qbb5 Nb2 Bef3 Qb4 Bfe4 Qd2 Bc4 Nf6 Bg8+ Kg7 Bh7 Nb6 Bd6 Na8 Bdf4 Nd7 Bfg3 Rc3 Qh5 Rc5 Be5+
1B2BK1R/2Q4q/n2NrqqR/2b1nb2/2bk2N1/7N/1P1PQr2/B1qb1b1q w - - 0 1 illegal: Other
b2N2rk/3R1n2/4nr1P/r2B1R2/1R1Q1r2/B1PN1b2/Bbb1q1Qr/1K4bq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 g5 e4 d5 h4 f5 e5 Kf7 e6+ Kg7 b6 f3 h5 g3 b7 g4 c3 d3 b5 a4 b6 a3 e7 d4 e8B a2 Bb2 f2 Kc1 f4 Qc2 f3 Bc6 g2 Bd5 d2+ Kd1 g3 Bf7 Ra5 Ne2 g1B Be8 g2 Bd7 Nh6 Ba4 Na6 b8Q Bb7 Nc1 Nc7 Bc4 Ba3 Bc6 Qe7 Qa7 Ne6 Nd3 Nf7 B6d5 Ba8 b7 Qe8 Bc1 Bb2 b8R Qe7 Na3 f1R+ Ne1 f2 Rb4 Rh6 Nb5 Kh8 Nd6 Rf6 Rb1 a1R h6 R1a2 Nb7 Rf4 Nd8 Qb7 Ke2 d1B+ Kd3 Bf3 Rh5 Qa6 Kd2 d3 Qd4+ Rf6 Rf5 Qb7 Ke3 d2 Nd3 d1B Qe2 Bc2 Kd2 Qb8 Rb7 Qh2 Rd7 Qh1 Bb3 Re1 Bbc4 f1Q Bb3 R2a4 Ba2 Rc4 Qef2 Re4 Qg3 Rh4 Qg5 Rh2 Qg3 Ba1 Ba3 Qe2+ Kc1 Rca4 Qdg4 Rf4 Rb4 Bd1 Qf2 Bb2+ Kb1 Ba4 Qd4 Bd1 Bac4 Bc2+ Ka2 Be3 Qg3 g1R Qh3 Bd1 Kb1 Rg8 Ba2 Bg1 Qg2 Bc2+
3R2B1/1kq1N1r1/4nPNn/4n3/QnKR4/1rPRQr1N/2nqr3/B2r2bb w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 h5 b4 d5 f4 Kd7 g4 Kc7 g5 e5 g6 a5 c3 a4 f5 e3 Kd3 a3 f6 a2 g7 e4+ Kc2 h3 Kb3 h4 b6+ Kb7 b5 h2 Bb2 d3 Qe1 e2 Nf3 d2 Qd1 e1N Ng1 h3 Ba3 d4 Bd6 d3 Kc4 e3 Bg2+ Nf3 Qe2 d1Q Bb4 d2 Ba3 Rh7 Qf1 e2 Bb4 e1R Qf2 Ra3 Qe3 Nh6 g8N Re2 Ne7 Rb3 Ba3 Nc6 Bb2 Rg7 Na3 Ng5 Bd5 Qc7 Bg8 Ne6 Rc1 Qc2 Ba1 d1R Rb1 Rf1 Rd1 Rf3 Rd4 Qd2 Rd3 Ka8 Rd4 Bb7 Rd3 Kb8 Rd4 Ba8 b7 Ka7 b8R Bb7 Bb2 a1N Rbd8 Nc2 Ba1 Ba8 b6+ Kb7 Ng6 Be7 Nb5 Bc5 Na7 Rf1 Nf3 Rd1 Re1 h1R Nc8 h2 Ng5 Rf1 Nce7 h1N Nh3 Rf3 Rg1 Nf2 Rg3 Ka6 b7 Nd3 b8Q Ndb4 Qb5+ Ka7 Qa4+ Kb7 Rd3 Ba7 Rg4 Bd4 Qg5 Bg1 Qe3 Rff2 Nf5 Nc6d4+ Qc6+ Ka7 Re4 Rf4 Re5 Bb7 Rc5 Rff2 Qb5 Bh1 Nfe7 Ndc6 Qa4+ Kb7 Rcd5 Rf3 R5d4 Ne5+
1qk5/6Pq/nRb3Br/P2bb1q1/5qNr/RNn1N1Q1/1K1b1q2/Q1B2bR1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 h5 Kc2 b5 a4 c5 g4 f5 e4 h3 d6 h2 g5 h4 a5 h3 g6 f3 e5 f4 d5 c4 g7 f2 Qd3 b3+ Kc3 b2 Qd1 b4+ Kc2 c3 Bg2 f1Q Nf3 Rh4 Na3 Ne7 Qd3 Ba6 e6+ Kc8 Ng1 f3 Qd1 f2 Kb3 c2 Nc4 b1Q+ Bb2 c1B Nf3 Bg5 Nfd2 Qh7 Rg1 h1B Ra3 h2 Ne3 Bf6 Ka2 Be5 Be4 b3+ Kb1 Bb7 Bc1 b2 Nb3 Ra6 Bg6 Bc6 Qg4 Qc4 Qg3 f1B Ka2 Qf4 d7+ Kb7 d6 Bhd5 Kb1 h1Q Ka2 Qb6 d8Q Qg2 d7 Qc5 Qe8 Qgf2 d8R Rb6 Rd6 Na6 Qf7 Kc8 Qf5 Qb5 Qb1 Qc5 Qa1 Qb5 Ra4 b1Q+ Ka3 Ng8 e7 Nf6 e8N Ne4 Nf6 Nc3 Nfg4 Qbf5 Nc2 Q5g5 Kb2 Qbb4 Re6 Bc5 Rf6 Be3 Ra3 Bd2 Nce3 Qd6 Rf7 Qb8 Rb7 Rb4 Rb5 Rh6 Rb6 Qf8 Nf6 Rbh4 Nfg4 Q8f4
N3bNB1/1n2Pn1K/2Q1b1rR/1n6/2n3Rb/1q1Pn1Q1/1B1b2N1/Rqrb3k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 a5 e4 h5 g4 c5+ Kc3 Ke5 b4 a4 g5 h3 g6 h4 d3 h2 b6 a3 g7 f3 b7 f4 b5 f2 b6 h3 Ra2 f3 Bb2 Kf4 e5 Kg3 e6 Nc6 b8R Rh6 b7 Na7 Kc2 c3 Ba1 c4 Qd2 Nb5 Qc1 Be7 Qe3 Rg6 Bb2 Nh6 g8Q Bh4 e7 Be6 Nd2 Qd5 Qa7 Nf7 Ra1 a2 Re1 a1N+ Kb1 c2+ Ka2 c1B Bg2 f1N Qa6 c3+ Nc4 f2 Nf3 Nb3 Nb6 Bd2 Ra1 c2 Ne1 c1Q Rd8 Ne3 b8N f1N N8d7 Ra7 Nf8 Nc4 Na8 Rc7 Qc6 Nba5 Bf3 Qc2 Ng2 Nb7 Bg4 Qc1 Kb3 Qb1 Rd6 Rc8 Rg1 h1B Qg7 Kh2 Bf3 Qc5 Bd5 Qb6 Qg8 Nfe3 Qg7 Bd7 Rf6 Be8 Re6 Rg3 Rh6 Rg6 Be6 Nfd8 Bg8 Nf7 Rf1 Rc7 Rf4 Kg1 Rg4 h2 Ne1+ Bg2 Qe5 Kh1 Qg3 Bd5 Ng2 Bc1 Kb4 Be6 Kb3 Nba3+ Kc3 Qb3+ Kd4 Bd2 Ke4 Nb5 Qd5 Nce5 Kf4 Rc1 Qc6 N5c4 Rg5 Nf5+ Kg4 Nfe3+ Kh5 Kg1 Rg4 h1B Qf2+ Kh2 Qff3 Kg1 Qg3 Rg7 Ne1+ Bg2 Qa6 Kh1 Qc6 Bf3 Ng2 Rh7 Kg6 Bd1 Rh5 Rh6+ Kg7 Rf6 Rh6 Rg6+ Kh7 B6d7 Qcf3 Bf5 Qc6 Be6
1n1R4/1Pnnb3/2rN3k/7q/Q1qNQK1n/Rb1B4/1bbrnQ1P/b3B2N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 e4 Kf7 b4 Kg6 c4 d5 e5 a5 b6 f3 Kg3 f2 c5 a4 e6 d3 e7 d2 e8N d4 c6 f4+ Kg2 a3 b5 a2 c7 d3 b7 g3 Kf3 g2 b6 Rh6 Qe2 d1N Qe5 d2 Nf6 Bf5 c8Q Qe8 Qe2 Ne3 Qc5 d1B Qe7 Nd5 Qb4 Be7 Qd6 Bb3 Nh7+ Ngf6 Qd7 Nc7 Qd6 Bfc2 Qd8 Nfd7 Nh3 g1B N7g5 Ra4 Qd2 Rd4 Ne4 Qh8 Be2 f1N Nd6 Ng3 Nf2 Nf5 Na3 Nh4+ Kg4 Rd5 Nab5 f3 Kf4 Qe8 Qe3 Rd2 Nd4 Kh7 Qc8 Qh5 Qe8 Rg6 Bb2 Kh6 Bd3 Re6 Rd1 a1B Qe4 g6 Bc3 g5+ Kg3 g4 Kf4 g3 Qf7 Nc6 b8Q g2 Qa8 Ncb8 b7 Bb2 Qa4 Ba1 Nh3 f2 Qff5 f1Q+ Nf2 Bb2 Ra1 Rf6 Ra3 Ba1 Ne8 Rc6 Nd6 Rd1 Be1 Rd2 Qf7 Qfe2 Nd1 Bf2 Rf1 Bg1 Nf2 Bb2 Nh1 Ba1 Ne6 Bgd4 Rf3 Bdc3 Nd4 g1N Rg3 Bcb2 Rg8 Rc5 Rd8 Rc6 Qf3 Qf1 Qf2 Qfe2 Qd5 Qe6 Qdg2 Qc4 Qe4 Ne2+
7n/1R2rN1Q/rN2qB2/3K1b2/n1R2QPq/3Nb1Q1/1qBq1P2/1n1bn1qk w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 b4 Kg5 c4 Kf4 b6 h5 c5 e5 b5 d5 c6 a5 c7 e3+ Kd3 h3 b7 e4+ Kc2 h4 Kb3 a4+ Kb2 h2 b6 d3 Kc3 h3 Kd4 d2 Ra2 a3 Rc2 a2 Bb5 a1Q+ Rc3 e2 Bc6 e1Q Qa4 e3 Bd7 d1N Qc6 Nh6 Qa4 Qb2 Qa7 Bc5+ Kd3 d4 Kc4 d3 Qa4 d2 Rb3 e2 Na3 Ra6 Qb5 Rh7 Bf5 Re7 Bc2 Nd7 b8Q Nc3 b7 Nb1 Kd5 Nf7 Nc4 Nh8 Nb6 Be3 Qd3 d1B Nf3 Qd2 Ne5 e1N Qa7 Qf8 b8Q Nc5 Rc3 Bf5 c8N Qd8+ Nd6 Qc8 Ndf7 Na4 Rf1 Ng2 Rc7 h1Q Rb7 h2 Qd6 Qg1 Qc7 Qa3 Bb2 h1Q Bd4 Qa1 Qb3 Qh6 Nd3+ Kf3 Bf6 Ne1 Qf4+ Kg2 Qc3 Qb2 Qcc7 Qdc1 Qg3+ Kh1 Qcf4 Nf3 Re1 Qh4 Re2 Qd2 Re1 Bc5 Re4 Be3 Rc4 Ne1 Qa8 Qc7 Qg8 Qc8 Qh7 Qe6#
8/RR2KB2/q1Q1bN2/2rq1P1P/1n3b2/1n2NBbR/1qQ3qq/knBrn3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Ke6 f4 d5 h4 a5 b4 g5 b6 g3 b5 e3 Kd3 g4 h5 a4 f5+ Ke5 b7 a3 c5 a2 b6 g2 c6 g3 c7 e2 Be3 e1B Bh6 Na6 b8Q Nb4+ Ke2 d3+ Ke3 d4+ Kf3 d2 Kg4 d3 Kg5 Kd4 b7 e5+ Kg6 e4 Kf7 e3 Nc3 e2 Na4 Qf6+ Ke8 Qa6 Kf7 Bd6 Nb2 Kc3 Qb1 d1Q Ke8 d2 Qa7 Ne7+ Bf8 Ned5 b8R Be6 c8B Bf4 Qb7 Qc2 Qf7 d1Q Nc4 Qb2 Nf3 g1Q Ne3 g2 Nd2 Qh2 Qd7 g1Q Rb7 Beg3 Bg2 e1N Bf3 Qgg2 Ne4+ Kb3 Qb5 Nc3 Ke7 Qd5 Bh6 Rd8 Qc2+ Ka3 Qe8 Nb1 Qec6 Rb8 Bd7 Rbc8 Be8 Rd6 Bf7 Rdd8 Qe8 Rc5 Bg5 Qde5 Qc6 Rd1 Nf6 Qd5 Rd7 Nc3 Rb1 a1N Ra7 Ka2 Bh6 Nb3 Bg5 Qhg1 Rh3 Q1h2 Neg4 Be5 Bc1 Bc7 Ne3 Bcf4 Qe4 Qbc2 Rb2+ Ka1 Qd3 Qce2 Qc2 Nb1 Qa4+ Na2 Qd2 Nd4 Rbb7 Nb3 Qc6 Nb4 Qd3 Qea2 Qc2 Qb2
r1qq1bB1/1nq2n2/5B1r/N1Pb2K1/1R1R3N/q1qP2b1/kb2Q3/2QB1Rr1 w - - 0 1 illegal: No proof kernel
1k3q1N/r4r1q/Qbbb2Q1/n1PN3n/1QB3PB/1Rn3nb/r2B1RK1/2b5 w - - 0 1 illegal: No possible last move
nrB1q1Qq/5N2/2P1rB1P/1R2RB1n/R3N2r/q2qr1qQ/4k1nb/1K3b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 Ke4 Kc2 f5 e3 a5 c5 g5 c6 d5 b6 g3 h5 g4 b5 a4 b7 g2 b6 a3 Nf3 g1R Ne5 g3 Rh4 d3+ Kb3 a2 Kb2 g2 Qg4 d2 Rh2 d1N+ Kc2 d4 Qe2 d3+ Kd2 f3 Qf2 f4 Ba3 Bd6 Kc1 d2+ Kc2 Bh3 Bc1 Nf6 Qh4 f2 Bb2 Nbd7 b8Q Qe8 b7 Nb6 Bb5 f1R Qg3 f3 Qf2 Re1 Qg3 f2 Nf7 f1Q Ba6 Qf3 h6 Nh5 Qd8 Rb8 Bf6 Rh1 Qg8 g1Q Qc8 Rh7 Re2 Bf1 Qh3 Qfg3 Nc3+ Kf3 e4 Qe3 e5 Na8 Ne4 Qa3 e6 Be5 Rh2 Re3 e7 Rg7 Re2 Rg6 Qd7 Rh4 Qh3 Nb2 Ree1 Nd3 Re2 Ndf4 Ree1 Qd7 e8B Ng2 Bd3 Qc8 Bd7 Qe8 Bc8 Bc7 Nc5 Bf4 Bdf5 Be5 Ne4 Bd6 Reb1 Ke2 Rb5 Bc7 Re5 Bd6 Rb1 a1Q Rb4 Qd4 Kb1 Qdc3 Be7 Re6 Ra4 Bc7 Rc5 Qh8 Bf6 Qg5 Rd5 Bh2 Re5 Qg3 Bd7 Rc8 b8R Rd8 Rbb5 Rc8 Rec5 Rb8 Bc8 d1Q+ Rc1 Qd2 Rc5 Qd4 Re5 Qdd3#
3N4/1NkrQBR1/P7/nb2rr2/R3q1P1/q1b1qqrQ/Nq5K/R3n1Bb w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 e4 c5 d4 f5 g4 b5 Kg2 h5 a4 c4 a5 f3+ Kh3 c3 d6 c2 a6 b3 e5 f4 d5 f2 Nc3 b4 Bc4 f1R Be3 c1Q Nb5 b2 Kh2 b1R Qe2 f3 Bg5 h3 Bf6 b3 Nc3 f2 Ra4 b2 Bd3 h4 Ra3 Bg7 Ra5 Qe8 Qc2 Ne7 Nge2 Nec6 Ng1 Rh5 Ra4 Ra7 Bg6 Na5 Qb3 Nbc6 Ne4 Nb4 Qf3 Ra1 Ne2 b1Q N2c3 Qa3 Na2 Nc2 Bf7 Qb6 Rg1 Qbb2 Kh1 h2 Kg2 Qe7 e6+ Kd8 Qd3 Bd7 Nc5 Bb5 d7 h3+ Kg3 h1Q Bd4 h2 Be3 Nc6 Qh7 Rg5 Qh3 Rfe1 Rf1 Rad1 Rg1 Rd3 Rf1 Re2 Ra1 Qhc1 Kg2 h1B+ Kh2 f1Q+ Bf2 Ree3 Bg1 Qce1 Qh6 Na5 Qh3 Ra8 Nb7+ Kc7 d8R Qf5 Bh5 Bc3 Rg8 Rg3 Rg7 Re8 Bf7 Qeb4 e7 Qf3 Nc1 Qee3 Na2 Ra8 e8Q Rf5 Qe6 Re8 Qf6 Ree5 Qe7+ Kb6 d6 Qbd4 d7 Ne1+ Qg2 Qde4 d8N Rd2 Rc1 Rd7 Ra1 Bd2 Qf1 Kc7 Qh3 Bc3+
4N1Q1/nB1bBQnq/Pb1n1B2/3rr1P1/2Q2b2/6bK/Nr2rk2/3qR1Rb w - - 0 1 illegal: No possible last move
r3k3/2RrB3/PP1n3R/1B6/1KQnNnrq/4b1r1/B3bnr1/RQ1q2qN w - - 0 1 illegal: No proof kernel
3NRR2/Qr1q2bP/P4NBr/2K2b1b/1nB1qr2/1n2qNr1/1k1q3B/q5Q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 d4+ Kc4 h5 c5 h6 g5 d6 f5 a5 b5 a6 b3 d5 g3+ Kf3 b2 d7 g2 d6 b4 Ra3 b3 Nh3 g1R Be3 g4+ Kf2 f3 Qd2 g3+ Ke1 f4 Ra1 f2+ Kd1 f3 Nf4 g2 Rh5 Nc6 Rf5 Rb8 Nd5 Nge7 Nb4 Rb7 Nd5 Bg7 Re5 Nb4 Bf4 Nf5 Qe1 Nd4 Kd2 Qe7 d8Q Bf5 Ke3 Qd7 Ra3 Bg6 Rf5 Bh5 Nf6 Rh7 Nd2+ Kc3 Qa1 c4 Qb6 Rh8 Qe1 b1B Qa7 Kb2 Bh2 c3 Re5 c2 Re8 c1Q h7 Bf5 Ra5 Rg8 Rc5 Qc2 Rcc8 Rh1 Rf8 g1Q Rce8 Ka3 Qd1 b2 Qe1 b1Q Qd1 Qf7 d7 Kb2 d8N Qd7 Qe1 Qa1 Qd1 Qca4 Qe1 Bh3 Ke4 Bf5+ Ke5 Qg5 e4 Qe3 Bc4 f1R Qg3 f2 Nf3 Qae1 Qg2 Q1d2 Qg1 Qc8 Kd6 Qcd7+ Kc5 Qac2 e5 Qce4 Bg3 Rh4 e6 Rf4 Qh2 Rh1 e7 f1Q Qg1 Rhh4 Bh2 Qa1 Qg2 Bh8 Qg1 Rg3 Rg8 Rhh3 Ref8 Bg7 e8B Bhg4 Bef7 Rh6 Bg6 Bh5 Re8 Qda4 Rh8 Qd7 Rhf8 Nb3#
1r1bB1k1/Q3P3/1B1K4/Pqb1R3/2q2Q1r/nN3Q1r/1R1qBnqb/N2b2b1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 g5 Ke3 f5 h4 Kf7 d4 c5 a4 b5 a5 g3 d5 g4 Kf4 c3 e4 c2 h5 b3 h6 b2 h7 g2 d6 c4 d7 c3 Qd2 g3 Rh6 b4 Na3 b1R Qd4 b3 Rh5 b2 Qf2 Nc6 Nf3 g1B Ra2 g2 Nh2 Bc5 Nc4 Nb4 Qe2 Nf6 Qf2 Rb8 Be3 c1Q Ng4 c2 Rh4 Bd4 Rh5 Bh2+ Qg3 g1B e6+ Kg7 e5 Ne4 e7 Nf2 e8B Ra1 e6 b1Q Rb2 Ra3 Nd2 Qh4 Ne4 Qd2 d8Q c1B Nc5 Nc2 Qb6 Ba6 Nb3 Be2 Qd6 Bd1 Be2 Qh3 Qc5 Qg2 Qa7+ Kf8 Rg5 Ra4 Rh5 Na3 Rg5 Qbd3 Rh5 Qb5 Rg5 Bc5+ Ke5 f4 Qf3 Bd4+ Kd6 Rc4 Re5 Rb4 Qc6 f3 Qc3 Nh1 Qc6 f2 Qca8 f1Q e7+ Kg7 Qe4 Nf2 Qf3 Bb6+ Bd4 Bd8 Ne3 Rc4 Nc2 Ra4 Ra2 Bb2 Nca1 Bc3 Rb2 Rc4 Qd3 Rb4 Bb6 Rh4 Qd5 Bd4 Qdb7 Rf8 Qe4 Rf3 Qf4 Qc4 Bc6 Rfh3 h8Q+ Kg6 Qh5+ Kg7 Be8 Kg8 Bf3 Qfd3 Be2 Qb1 Qhf3 Qf5 Re6 Qfb5 Re5 Bc5#
1qN1nR2/2PKqq2/2BnNQ2/6R1/1Q4bb/1RB1nq1r/kP6/n2Nrb1q w - - 0 1 illegal: No possible last move
r4n1q/1nPnq1n1/1R1b2BP/n1Q1R3/1NQ1rR1b/k5KB/3Bb3/qbN5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 Kb4 b3 a5 b6 f5 e5 d5 c5 g5 c6 g3+ Kg2 g4 c7 a4 b7 d3 h5 d2 e6 a3 e7 a2 e8B d4 h6 d3 Rh4 f3+ Kh1 f2 Kg2 f4 Be2 f1N Nf3 Ne3+ Kg1 g2 Kh2 g1B+ Kh1 g3 Na3 Nf5 Kg2 Bf2 Nd4 f3+ Kh3 g2 Re4 g1Q Qc2 d1N Rf4 d2 Bf7 Bh4 Nab5 f2 Bf3 f1N Bh1 Ng7+ Qf5 Ng3 Bg6 Ne3 Na3 d1B Ne2+ Nc4 Bg2 Nd7 b8R+ Bb7 Rb1 Qe7 Re8 a1Q Bd2+ Qc3 Qh5 Be4 Nc1 Ngf6 Qe2 Na5 Nc2+ Kc5 Qg4 Nh7 Nb4 Be2 Qe6 Qgd4 Qa6 Qa1 Qc4+ Kd6 Kh2 N3f5 Bh3 Qdc3 Rb2 Bb1 Kg2 Qd8 Re5 Qe7 Nd5 Qd4 b4 Re8 b5 Qc3 Qb3 Kc5 b6 Nd6 b7 Qd4 b8Q Ndb7 Qb6+ Kc4 Rb5 Rg8 Nb4 Rh8 Ncd3 Kb3 Qc5 Ka3 Rb6 Qed6 Rd5 Nf5 Ra6 Nd8 Qc4 Re4 Qbb5 Nb7 Rc6 Q6f6 Kh2 Bd6 Qbc5 Ra8 Rb6 Qe7 Nc1 Qh8 Re5 Nhf8 Kg2 Ng7 Kh2 Bf6 Kg3 Bh4+
2r1br2/Q3bR1B/2RB4/3krr2/1Q3Qn1/Pq2R1r1/1nN2rPb/3Nr1bK w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kf7 Kf2 e5 d4 h5 a3 c5 d6 Ke6 d7 b5 Nf3 h3 Kg1 h4 Qd3 c4 Qe2 h2+ Kf2 h3 Ra2 b3 Qe1 b4 Nc3 b2 Rg1 h1R Nd2 b1R Nd1 b3 Nf3 c3 Ne3 h2 Nh4 b2 Ng6 c2 Qa5 Be7 Qa6+ Qb6 d8R Nh6 Qa4 Nc6 Qa7 Ng4+ Kg3 Na5 Rd5 Nc4 Nh4 Qb3 Ra1 Bd7 Rc5 Rac8 Nf5 Be8 Bd2 Rd1 Bb4 c1B Bd3 Rf1 Nc2 b1R Nfe3 Nb2 d5+ Kd6 Nd4 Bd2 Ndc2 Bc3 f5 Bd4 f6 Rbd1 f7 Rd2 Nd1 e3 Nf2 e2 f8Q e4 Re1 e3 Nd1 Rh5 Qf7 Re5 Bh7 Rf4 Rgf1 Rg1 Rf3 h1R Qf5 Rf1 Qe4 Rf8 Rf7 Rff5 Qf4 Rf1 Kh3 Rd3 Kg3 Nf6 Kh2 Rf3 Kh1 Ng4 Rf1 e1B Rg1 Bf2 Re1 Bg3 Re2 Bh2 Re1 Rc7 Rc6+ Kd7 d6 Ke6 Bc5 e2 Bb4 Bdg1 d7+ Kd5 Bc5 Rc8 Bb4 Rf2 d8Q+ Bd6 Qdb6 Be7 Bd6 Rg3 Qbb4 Rff3 Rf1 e1R Rf2 Nd3 Re2 Rf2 Re3 Nb2
2b2r2/3Q1Brb/r2nNNQn/NRn5/1K2R1P1/q1B1r3/k1q1qb1P/b3Q3 w - - 0 1 illegal: No proof kernel
4N3/2bQq3/B4q2/Nq1RRn1n/P1R4q/n2b2k1/2rBr1Pr/2b1KQBn w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 a4 Kd6 e4 h5 Ba3 b5 Nf3 c5 Ng5 f5 Nd2 h3 Qf3 h2 Ke2 c4 Qf2 h4 Rb1 f3+ Ke1 c3 Bc4 c2 Qg3+ f4 Be2 c1B Nh3 f2+ Kd1 f1Q+ Qe1 f3 Bd3 f2 Bc2 Bf5 Ra1 Nh6 Ra2 Nd7 Nb3 Rc8 Na5 Nf6 Bd3 Nh5 Rc2 Qe7 Ng5 h3 Rc4 Bh7 Ne6 Nf5 Bb2 b3 Bc3 b2 Bd2 b1Q Ng7 b4 Be2 b3 e5+ Kd7 d6 b2 Ne8 Ke6 Rg1 h1Q d7 h2 d8B Kd5 e6 Ke4 d5+ Ke5 Rh4 Rc2 d6 Qa1 d7 b1N Rd4 Na3 Bb6 Bh6 d8Q Bf4 Rd3 Qb1 Rd7 Qb5 Rd5+ Ke4 Qd7 Bc7 Bc3 Kf4 Bd2+ Kg3 Bbe3 Qb2 Ba6 Qfb5 Qf1 Qe5 Bb6 Q7f6 e7 Bg6 Qe2 f1R+ Qe1+ Rf2 Qf1 Qed6 Ke1 Bh7 Ng7 Qdb4 e8R Qbe7+ Bbe3 Nh4 Rc8 Bd3 Ne8 Nf5 Qe2 Be5 Rc4 Bc7 Rf1 Qg1 Bb6 h1N Re5 Qh2 Qd1 Rf3 Bg1 Qhh4 Rf2 Rf4 Rfe2 Rf3 Rd5 Rf2 Ree5 Nhg7 Qc6 Qe4+ Qe2 Rh2 Qd6 Qeh4 Qd7 Nh5 Qf1 Re2+
3B1Nk1/4b1r1/4r1Rb/1QbqBP1n/2B1nN2/q3q1q1/N1K2n1P/r2Q1bR1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 c4 e5 f4 g5 b4 d5 b6 a5 b5 a4 c5 d3 c6 e3+ Kc3 e4 c7 d4+ Kb2 d2 f5 a3+ Kb3 d3 b7 g3 b6 a2 Qe1 d1R Na3 d2 Ne2 g2 Rg1 g4 Qg3 Nf6 Rh1 g1B Bg2 Ra7 Bb2 Kg8 Nb1 Nh5 Nec3 e2 Na4 e1B Qc3 e3 Qb4 g3 Nac3 e2 Nd5 Nd7 b8Q Bgc5 b7 Bfe7 Qd4 Rh6 Rg1 Re6 Kc2 Ndf6 Bf1 g2 Nf4 Qd5 Nc3 Ne4 Rc1 a1Q Na2 Bf2 Ba3 e1Q Bc4 Qe3 Bb4 Qd6 Ba5 Qd5 Rb1 Bfh4 Rb6 Bhg5 Qd3 Re1 Qf1 Rb1 Qd1 Bh6 Rd6 Qg7 Bb6 Qf8 Rc6 Bd7 c8N Ra1 Bd8 Qg3 Ra6 Bb5 Nb6 Qe3 Nd7 Qg3 Bb3 Bf1 Bc4 Qe3 Qe5 Qg3 b8B Rc7 Qb1 d1N Rb6 Ndf2 Qd1 Qe3 Qb2 Ra7 Be5 Qg3 Qb5 Rb7 Rh1 g1Q Rd6 Qe3 Rb6 Qgg3 Rg1 Qfg7 Nf8 Q7g5 Ra6 Qa3 N4g6 Q5e3 Nf4 Rg6 Rc6 Rb6 Re6 Rg7 Rg6 Re6
1n3n2/3q2K1/N1r4R/qQ1rrPbP/2bB1Q2/1Nnn3B/2k1b3/q1rR2BN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kf5 h4 g5 b4 e5 c5 d5 c6 a5 h5 e3 Kd3 a4 c7 g3 b6 g2 b5 e2 b7 e1R b6 e4+ Kc2 d3+ Kc3 a3 Kd4 g4 Qd2 g3 Qf2 d2 Ra2 d1B Bb2 e3 Qe2 Be7 Qd2 e2 Qb4 Be6 c8Q Ra5 Qc6 Bg5 Qcb5 Rh6 Rh4 Nf6 Q4a4 Nfd7 Bc3 Nf8 Qc5 Qd7 Nh3 g1R Nd2 g2 Nf2 Rh1 Qcc6 g1Q Qcb5 Qh2 Rc2 a2 Nb3 a1Q Rc1 Bg8 Rg4 Rc6 Bh3 Rhf1 Nh1 Qg1+ Kd3 Qc5 Bd4 Be6 Bg1 d4 Rb1 Na6 b8N Bc4+ Kd2 Ke4 b7 d3 Rc1 Qb1 Kc3 d2 Rg3 Qa7 f5 Qb6 Rd3 Qbc7 Rd6 Qa2 Qb6 Rd5 Qbb5 Qa5+ Qab4 Q2a3 Rh6 Q3a4 Kb2 Kd3 Bd4 Nc5 Na6 Rg1 b8B Rgf1 Nc7 Na6 Bba7 Nb8 Na6 Rf3 Bg4 Re3 Bh3 Ree5 Bg1 Rf1 Bad4 e1N Ra1 Be2 Rd1 Ke4 Kc3 Nd3 Rf6 Qa2 Rh6 Qa1+ Kc2 Q1a2+ Bb2 Nc5 Kc3 Qa1 Rb1 d1N+ Kc2 Ree6 Qd2 Rdd6 Qf4+ Kd5 Bg7 Nc3 B7d4 Re7 Rd1 Re8 Rd2 Rb1 Rd1 Rc1+ Kd2 Re3 Ke1 Ree6 Kf2 Re4 Qh2 Re8 Kg3 Ke4 Qf2 Rd5 Qf1 Bd2 Kh4 Kd3 Qf2 Re3 Kg5 Kc2 Qg3 Nd3 Qh2 Ne6+ Kg6 Ree5 Qf2 Bg5 Qf4 Qd6 Kf7 Nf8 Kg7 Qd7+
3K2n1/5Nb1/7N/BQrNP1r1/3QP1B1/Rn2nrRn/2q1bb2/Qqr3qk w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kf4 Kd5 h4 b5 a4 g5+ Kg3 Ke4 c4 d5 a5 f4+ Kg2 f3+ Kg3 b3 e3 d3 h5 b4 a6 f2 c5 d4 a7 d2 h6 b2 h7 d3 c6 b3 c7 Bg7 Rh3 Ba6 c8Q Qc7 Ra5 Nd7 Na3 b1Q Qe2 d1N Qf8 d2 Nf3 b2 Qc5 Rc8 Qb6 Qcc2 Nh4 Nc5 Nf5 Nb3 Nb5 Rc5 Nc7 Bd3 Qe1 Be2 Ra3 Qa1 Qd6 b1Q Nd5 Qd4 a8Q Qda1 Kg2 g3 Qa5 g4 Nh6 Qd4 Qb5 Qda1 Kh1 Kf3 e4 Ne3 Bb2 d1R Bc3 Rc1 Ba5 Qd4 Qc3 Qdd1 Qa1 Qd4 Nc3 Qdd1 Qd4 Qe1 Nd5 Qed1 Rh5 g2+ Kh2 g1N Bh3 f1R Rg5 Kf2 Bg2 Nh3 Bf3 Ne7 Rg6 Rb8 h8N Ng8 N8f7 Rf8 Nh8 Rf5 N8f7 Rg5 Nf4 Re1 Nd5 Kf1 Kg3 Kg1 Kh4 g3 Bg4 g2 Nh8 Rf1 N8f7 Rgf5 Rg5 Kh1 Kh5 g1B Kg6 Bf2 Nf4 Bf6 Nd5 Bd8 Kg7 Bf6+ Kf8 Bg7+ Ke8 Rg1 Kd8 Rf3 Be6 Rg4 Rg6 Qg1 Rg5 Rgf4 Rg3 Rg4 Bd7 Rg6 Bg4 Rg5
1K2R1B1/1b1N1b1N/n1rBq2b/1P5P/2R2q1N/Qn1rr2Q/3r4/1bn1kqB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 c5 a5 h5 g3+ Kf3 g4+ Kg2 a4 b5 d3 b7 Kd4 c6 a3 e5 d2 e6 Ke3 e7 a2 e8Q+ Ne7 c7 d4 Qf7 d3 Be2 f3+ Kf1 f4 Qc4 f2 Kg2 Ng6 Qcc2 Qg5 Rh3 f1Q+ Kh1 Kf2 Ba3 g2+ Kh2 f3 Nc3 Bh6 Qcb1 Re8 Qa4 d1B Qa6 d2 Qb2 Ke1 Kg3 f2 Qb3 Ne5 Nd5 Nd3 Bc5 Nc1 Rh4 Bc2 Nf6 d1R Qaa3 Na6 b8B Rd2 Bc4 Bb7 c8N Bb1 Bbd6 Re4 Nb6 Rd8 Qf3 Re3 Bg8 Qg6 Nh7 Qe6 Nd7 Rc8 Qa4 Rc6 Qa3 Qfc4 Bd4 f1B Ba7 Qb4 Bb6 Bc4 Ba7 Bg7 Kf4 g3 Qg4 Bf8 Qh3 Qa4 Ng5 Bh6 Nf3+ Kd1 Rg4 g1Q Nh4 g2 Bb6 Ke1 Ba7 Bf8 Nh7 Qh1 Bd4 g1R B4c5 Red3 Be3 Rg3 Bg1 Qe2 Kf5 Bf7 Rc4 Bh6 Kf6 Qf1+ Ke7 Qd5 Kd8 Qb4 Be7 Qe6 Bd6 Bc2 Rb1 a1N Rb3 Rde3 Rd3 Nab3 Rdd4 Qg4 Re4 Bb1 Re7 Qe6 Re8 Rb6 Rc7 Qbf4 Rc4 Nac5 Kc7 Rc6+ Kb8 Red3 Ka7 Rge3 Kb8 Na6+
B1qb2Q1/1N4Kn/2Pq1nRq/2n1q3/NQ1n1B2/1B1N1k1r/1bR2P1r/4r2b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 c4 Kf6 b4 Ke5 g4 h5 c5 a5 g5 d5 b6 d3+ Ke3 d4+ Kd2 Kf4 b7 e5 g6 h3 g7 h2 b5 e3+ Ke1 h4 b6 h3 Ne2+ Kf3 Qb3 d2+ Kd1 e4 Kc2 d1Q+ Kb2 a4 Qe6 d3 Kc3 a3 Qg6 a2 Qd6 d2 Kd4 Be7 Ke5 Qe1 Qe6 d1Q Qh6 Nf6 g8B Nh7 Qg7 Nd7+ Ke6 Ra3 Kf7 Qd6 b8N Ndf6 Ng3 e2 b7 e3 Rg1 h1N Na6 h2 b8Q Bb7 Nh5 Ng3 Nc3 h1Q Na4 Nf5 Nf4 Qh6 Rg6 Nd4 Nd3 Qc8 Rb1 a1B Rb2 Qa5 Rc2 e1N Qf8 e2 Bf4 Be4 Qb4 Bb2 c6 Qag5 N6c5 Qge5 Nb7 Bd8 Bh3 Ng2 Be6 e1R Bc4 Rb3 Ba6 Rc3 Nbc5 Ra3 Bb7 Rb3 Ba8 Rc3 Be3 Nf4 Nb7 Nfe6 Bf4 Nc5 Qe8 Bf5 Qe6 Bh3 Qe8 Bg2 Qf8 Bh1 Qe8 Qhh5 Kg7 Ra3 Bb3 Qhg5 Qg8 Qh6+ Kf7 Qhg5 Bg3 Ke4 Bc4 Nf8 Bf4 Rh2 Kg7 N8h7 Nc1 Rah3 Bb3 Kf3 Nd3 Qh6+
nKB1qk1B/1R2nqN1/Pb6/3bNb2/r2B1P2/1nNQQ3/2qq1R1r/3rr3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 b5 Ke3 e5 f4 h5 g4 c5 a4 c4 d4 h3 d6 b3 a5 b4 d5 c3 g5 c2 g6 h4 g7 h2 Ba6 b2 Qd4 h3 Qd1 b3 Nf3 Ne7 g8N Bf5 Qd3 Nd7 Na3 b1Q Ra2 b2 Nb5 Nb6 d7+ Kf7 d6 Qe8 Rd1 h1B d8B h2 d7 Bg2 Re1 h1Q Nc3 Qh5 Bc8 Kg7 Rg1 Qhf7 Nf6 Rh2 Nh5+ Kg8 Bd2 c1N Ng7 Nb3 Qe2 Qc2 Rb1 Ra7 Bc1 Na8 Bb6 Ra6 d8Q Bh1 Bd4 Ra7 Rba1 b1R Bb2 Rd1 Rb1 Ra6 Qb6 Bg2 Qbb5 Bh1 Qbd3 Bg2 Kf2 e3+ Kg3 e4 Ne5 Ra7 Qf2 e2 Qfe3 e1R a6 Rb7 Ba1 Rb4 Rab2 Ra4 Ra2 Nc5 Rb7 Nb3 Rb2 Nd5 Ra2 Bc5 Rb2 Bb6 Ra2 Bg6 Kg4 Bf5+ Kg5 Kf8 Rb2 Qb1 Rf2 Qc2 Bb2 Ne7 Ba1 Qc4 Kf6 Bf3 Nf7 Bh1 Ke5 Bg2 Kd6 Bf3 Nd8 Qcf7 Nc6 Bg2 Ne5 Bf3 Qed2 e3 Qc1 e2 Qce3 Bd5 Bb2 Rg1 Ba1 e1Q Bb2 Ba5 Ba1 Qed2 Bb2 Nb6 Kc7 Rge1 Kb8 Na8 Ne4 Kg8 Nf3 Ng6 Ba7 Rh4 Ne6 Bc4 Bh8 Bd5 Nc3 Ne7 Ne5 Rh2 Bd4 Bb6 Ng7 Kf8
BN1N3n/3q1nPr/R1Q2n1b/Bb2rB2/Q6r/2R3b1/4nQPk/r1q1qK2 w - - 0 1 illegal: No possible last move, all moves rejected
1N1q1BQ1/RP3bRb/n3kb1Q/n1q4n/3qrRn1/2rB4/1KBrP3/N4q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 d5 b4 a5 c4 h5 Kc2 f5 g5 f3 g6 f4 c5 d3+ Kb2 f2 c6 h3 b6 d2 g7 f3 c7 h4 b5 a4 b7 d4 b6 h2 Ra3 h3 Ka1 d3 Qe1 d1Q Qa5 d2 Qb5 Nh6 g8Q Bf5 c8B Bg7+ Rc3 a3 Qd3 a2 Bb2 Bf6 Rc4 Bh7 Qc2 Ra4 Rf4 Re4 Bf5 Na6 b8R Ng4 Bg2 f1N b7 f2 Nf3 Ng3 Qc6 f1Q Ra8 Nh5 Rg1 h1Q Nd4 h2 Ra7 Qc2 Qb6 d1R Ba3+ Qc5 Kb2 a1N Nd2 Nb3 Bh3 Na5 Nb3 Rc1 Na1 Rc3 Nc6+ Kd6 Rg2 Qhg1 Nb8+ Ke5 Rg3 h1B Bb4 Qcd4 Bf8 Qc5 Rg2 Qgd4 Bg6 Nh2 Bhf5 Ng4 Qf7 Rg8 Qfb3 Rg7 Qg8 Rd7 Qc6 Ree3 Rg3 Bd5 Bc2 Bf7 Bgd3 Rd6 Qh1 Ke6 Qh2 Re4 Qh4 Nh6 Rg7 Ng4 Qg5 Qa4 Qh6 Rdd4 Bb5 Rd2 Bd3 Qad4
1q1Q2n1/1Pb1q3/R2BqqKn/P1Nk1n2/r5Rr/Q2r1bN1/1rb5/1B2R1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
KB1B4/PN3BnR/k1qNQ1Q1/5n1n/8/1qR1r3/rP1bbqr1/qb4Qb w - - 0 1 illegal: No proof kernel
3Nr3/4b3/RbN1R1nP/1R1PN1Bk/bQ1r2nq/1n1b4/Kb2B3/br1Q2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 d4 c5 Kd2 g5 Kc3 a5 b4 f5 Kb2 Kf7 e4 Kg6 h4 c3+ Ka2 g3 e5 g2 d5 a4 e6 a3 e7 g4 e8R c4 b6 c2 b7 g3 b5 f3 b6 f4 Nd2 c3 Nh3 g1B Ng5 f2 Bb2 c1B Re2 c2 Be5 f3 Nc4 g2 Qd4 Bd7 Bd6 Ra4 Be7 Nh6 Qd2 Nc6 b8N Ne5 b7 Nhg4 Kb3 a2 Rb1 a1B h5+ Kh6 Rh2 Ng6 Re4 Ba3 Bd3 f1B Re6 f2 Ne5 c1R Rb2 Rb1 Qd1 Be2 Rh3 f1N Ka2 Nd2 Rb3 Bb5 Nbc6 B3b2+ Ra3 Bc5 b8Q Rd4 Ra6 g1R Rg3 Ba4 Ngf7+ Kg7 Qb5 Bb6 Bc4 Rg8 Rb3 Kh7 Rb4 Nb3 Bh4 Qe7 Nfd8 Kh6 Qc5 Qg5 Rb5 Be7 Qb4 Re8 Bd3 Bf3 Be2 Be4 Bg3 Bc2 Bf4 Bd3 Be3 Rf4 Bc1 Qh4 Bd2 Kg5 h6 Kh5 Bc1 Rc4 Bg5 Rd4
2n2n2/k1b1bR1r/3qPB1Q/3Q1rbN/n2r1bK1/3R2PB/R1b3Nb/3Qn3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 Kf3 Kc6 e4 Kb7 b4 a5 d4 c5 g6 h5 d5 f5 d6 a3 d7 h4 g7 c3 e5 h3 b5 a2 b6 a4 Bc4 h2 Ne2 c2 Qd2 a3 Bd3 c4 Qe1 c3 Bb5 Rh7 Nd2 Be7 Qd1 Ra4 Rg1 h1N Bd3 Ng3 Rf1 Ne4 Rg1 Rd4 Bb2 c1B Bb5 c2 Ng3 Nc5 Qe2 Na4 Rb1 a1B Nc4 a2 Kf2 f3 Re1 f4 Kf1 f2 Ne3 Qf8 d8R Bf5 e6 Nd7 Nh5 Bd2 Red1 c1B Ra8 Bc2 Ra7+ Kb8 b7 Ba5 Qf3 Bc7 Ke2 f1N Rd3 Nd2 Qd5 f3+ Kf2 Bh2 g3 Bg5 Bc4 Ne7 g8Q Nc8 Ng2 Qd6 Qg6 Nf8 Qh6 Be7 Ke3 f2 Bc3 f1R Rb2 Nf3+ Ke2 Rf4 Bf6 Ne1 Ba6 Rd4 Bc4 Rf5 Ba6 Kc7 b8Q+ Kd8 Bc4 Bf4 Qb3 Bg5 Ba6 Bf4 Bb7 Kc7 Kf2 Kb8 Ke2 Bb1 Qd1 Bg5 Rbd2 Bc2 Bc6 Bb2 Rc7 a1B Ra7 Bd8 Rf7 Bc7 Ba8 Ba3 Bb7 Bb3 Ra2 Ka7 Ba8 Bac1 Bc6 Bcf4 Bb5 Nc2 Kf3 Ne1+ Kg4 Bc2 Rf3 Nb6 Bf1 Nc8 Rd3 Bb2 Nh4 Ba3 Bh3 Qd8 Ng2 Be7 Rda3 Qd7 Rd3 Qd6
N3brbR/5Pq1/5B1n/N1nbn2B/2Q2r1n/RP2N2Q/5k2/rKbRb2b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 g4 h5 c5 d5 f3 a5 c6 e3 c7 Kf4 b6 Kg3 g5 e5 f4 a4 b7 e2 g6 e1N+ Kd2 e4 f5 d3 f6 h3 g7 h4 Ra3 d4 Qh5 h2 Rb3 a3 Qf7 a2 Qg6+ Kf2 Qg4 a1N Be2 h3 Rb5 e3+ Kd1 d2 Nc3 Qd7 Bc4 Nf3 Be2 Nh6 g8N Nh4 Re5 Ba3 Ne7 Nc6 b8R Nb3 Kc2 d1R Na4 d3+ Kb1 d2 Ra5 Ne5 Nf5 Qg7 Qc4 Nc5 b3 Rf1 Nf3 d1B Bb2 Be6 c8Q Rf8 Nd2 Bg8 Bh5 e2 Ne3 e1B Nb6 Ra6 Ba1 Bc1 Ra3 Be2 Rg1 h1B f7 h2 Qh3 Bd5 Na8 Bg4 Rd8 Bd7 Rh1 Be8 Rd6 N6f5 Rh6 Ra5 Rh8 Nh6 Rg1 h1B Bb2 Nef3 Bf6 Ra4 Qd3 Rf4 Ndc4 Ne5 Na5 Ra4 Rg3 Rf4 Qc4 Rg1 Rg4 Rg2 Rg5 Kg1 Rf5 Ra2 Rg5+ Kf2 Rg1 Bb4 Rd1 Bbd2 Nc7 Be1 Na8 Ra1+
n1b1bNR1/Pk2rNR1/2R2n1r/B1Qq3n/2Q1B1b1/1rb5/3BP2b/1Kb2n2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Kd7 a4 c5 d4 Kc7 Kd2 b5 Kc2 g5 a5 f5 a6 c4 h5 c3 h6 g3 a7 f3 d6+ Kb7 d7 f2 h7 g4 d5 g2 d6 b3+ Kd3 b4 Be3 c2 Qd2 c1B Rh2 b2 Kc2 g3 Bg5 f4 Ra4 f3 Be7 Na6 Bf6 Rb8 Qd4 Nc7 Qc4 Bg7 Rh6 Na8 Bc3 Nf6 Nh3 g1B Na3 g2 Kb1 Bh2 Nc2 g1R Bg2 f1N Ng5 Ng3 Nd4 Ngh5 Nde6 Rh1 Qc5 Re8 h8R Re7 Bd2 Qa5 Qc4 Qd5 d8Q f2 d7 f1N Rg8 Bh8 Qa5 Bg7 Ka2 b1B+ Ka1 b3 d8B Bg6 Nf8 Bg4 Qac5 Be8 Kb1 b2 Nf7 Bc8 Be4 Bh8 Ka2 b1B+ Ka1 Bg4 B8a5 Bc2 Ra3 Bca4 Rh7 Bad7 Kb1 Bc8 Re3 Nd7 Ra3 Bc3 Rhg7 Ndf6 Ra4 Nh7 Ra2 N7f6 Rc2 Nf4 Rb2+ Bb4 Q4d4 Bg1 Qdc3 Ka6 Q3d4 Rh6 Rc2 Bh2 Qc7 N4h5 Rc5 Rb7 Qc4+ Rb5 Qd6+ Kb7 Rc6 Rb6 Qdc5 Bc3+ Ka2 Rb2+ Ka1 Rb3+ Ka2 Ra3+ Kb1 Rb3+
2r1R3/KnB1Br2/QbQq1r1Q/3q1n2/1qb5/qq1R4/1NqP2NP/1rkB4 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 g4 hxg4 a5 e5 fxe5 b6 Qc2 bxa5 Qd1 a4 Kf2 Kd7 Ke3 Ke6 b4 Kf5 e6 g5 e7 c5 e8Q a5 b5 g3 b6 g2 b7 g4 Qc6 c3 Ra2 g3 Qb3 c4 Qd6 c2 Kd4 c3 Kc5 Ke4 e3 f5 Qb5 f4 Ra3 f3 Qe8+ Be6 Ra2 f2 Qd7 a3 Ne2 g1Q Nd4 a4 Nc6 g2 Ne7 Rh6 Bb2 c1R Ba1 c2 Bc3 Nc6 b8B Na5 Bf6 Nb7+ Kc6 Re1 Bg7 c1Q+ Bc4 f1R Ba7 Rf7 Bb6 Rc8+ Bc7 Rd1 Nd5 Ne7+ Kb6 Nf5 Q7e7 Qc3 Rc2 a2 Qg5 a1Q Nf4 a3 Bb3 a2 Na3 Rb1 Bf6 Qab2 Ka7 a1Q Qa6 Qd1 Re1 g1Q Nc4 Qg3 Ng2 Kd3 e4 Bb4 e5 Qaa3 Ba4 Rg6 Qh6 Ba5 Bh4 Bd5 e6 Qbb4 e7 Qdf3 e8Q Qdd6 Bhd8 Rgf6 Qec6 Qh3 Rb2 Qc1 Rb3+ Kc2 Nb2+ Bc4 Re2 Qfd5 Re8 Qd1 Rbe3+ Kc1 Be7 Qhf3 Bb3 Qfe4 Ba4 Qdf3 Bd1 Qc2 Re1 Qfd3 Re3 Qdb3 Rd3 Bb6+
1q1nB1nk/Bb1N1RN1/R1Qnb3/1nn1K3/P6r/1Q2r1r1/r3bP1R/4b2Q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg7 Kf4 c5 g4 h5 d4 e5+ Ke3 b5 d6 h3 d7 h4 d5 h2 a3 c4 g5 h3 g6 b3 d6 b4 Qe2 b2 Qh5 b3 Nc3 b1N Nf3 b2 Na4 c3 Nb6 c2 Bg2 Nd2 Na4 b1N Nh4 Nc3 Nf3 Nc6 Bb2 c1R Ra2 Nb5 Qf5 Rg1 Bd4 Rh4 Ng5 Kh8 Bf3 Rg3 Qe6 Be7 Nc5 Nc4+ Ke2 e3 Kd3 Qc7 d8Q e2 Nd7 e1R Ba7 Qb8 Qd5 Bf8 Qe8 Nd8 Ne6 Re2 Ng7 Re3+ Kc2 e4 Bh5 Be7 Qc6 Bf6 Qf8 Bc3 Qf3 Be1 Qd1 Ref3 Qb1 e3 Kd3 Nd2 Ra1 Ne4 Kc4 e2 Kd5 Re3 Ke5 Rgg4 Ne6 Rgg3 g7+ Kh7 Be8 Ba6 Rg1 h1B Rg2 Bc8 Rh2 Bf3 Rg2 h2 Qb3 h1B Rh2 Nh6 g8R Bg4 Rf8 Ng8 Ng7 Kh8 Rf3 Bb7 Rf7 Bhf3 Rd1 Bf5 Rd4 Be6 Ra4 Bb4 Ra6 e1N Rg2 Be2 Rh2 Nc2 Qcc4 Ncd4 Qc6 Nf5 a4 Be1 Qa2 Ra3 Qb3 Nc5 Nf6 Qc8 d7 Ra2 Qh1 Nfd6 Qc6 Bf5 Qh1 Qb8 Qc6 Nde6 d8Q Bh3 Qdb6 Nd8 Qh1 Be6 Qbc6 Qc7 Qbf3 Rc8 Qa3 Qb8 Qb3 Rc7 Rf8 Rf7 Nd7 Rff3 Rf7 Re3+
rqNQq1nR/1q5K/4qP2/N1Q1b2k/1BPR3r/2q2r2/4Q2R/qn1Brb2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 e5 g4 d5 b4 h5 b6 a5 b7 h3 b5 e3+ Kd3 a4 g5 e2 b6 e1R Ra2 a3 Qf3 h2 Nd2 e4+ Kc2 d3+ Kc3 e3 Kd4 e2 Ke5 d4 Qh3 h4 f5+ Kh5 f6 Bd6+ Ke4 Na6 b8Q Nb4 g6 Qe8+ Qe6 h3 Kf5 Nd5 b7 Nc3 g7 Be5 Nb3 d2 Qc7 d1Q b8Q d3 Nf3 d2 Na5 Qb3 Qc5 d1R Nd4 Rd3 Ndc6 Nb1 Na7 Qc3 Rd2 a2 Ba3 a1Q Bb4 Bd7 Qd8 Rf3+ Ke4 Rh6 Rd4 Rh7 Nc8 Rh8 Rg1 h1Q Rg2 h2 Rf2 Qg1 Bh3 h1Q Rh2 Qg3 Bg4+ Kg5 Qee7 Be6 Bh5 Bh3 Bg4 Rh4 Qe6 Ne7 g8R+ Kh6 Rf8 Ng8 Qee7 Bf1 Qe6 Rd3+ Kf5 Qb7 Qee7 Rc1 Bh5 e1Q Bd1 Rf3+ Ke6 Qec6+ Kf7 Kh5 Re8 Qf4 Kg7 Qe6 Kh7 Qee3 Ba4 Re1 Bd1 Qd6 Rf8 Qdb8 Re8 Qg4 Rf8 Qe6 Re8 Nh6 Rh8 Ng8 Qed7 Qe8 Qg7 Qe2 Qcb6 Bf4 Qge7 Bc7 Qbc5+ Qe5 Qe6 Qed5 Qe2 Be5+ Qce7 Qe6 Qec7 Ne7 Qc5 Ng8+
2bNn3/2bBKRN1/1P2bb1q/1PQ4B/qB6/n1Q1n3/3nn1Nk/R3rnr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 a5 g4 h5 e4 d5+ Kd3 h3 b4 h4 c4 a4 c5 h2 c6 f3 b6 f2 b5 f4 g5 h3 g6 f3 g7 a3 c7 a2 Qa4 Bd6 Qb4 Nd7 Qd2 Ngf6 g8N Ne8 Qb2 Qg5 Na3 Qh6 Ne7 Rg8 Be2 f1N Qb3 f2 Qb2 Nd2 Nc4+ Kf4 e5 Kg3 e6 f1N Ne3 Ne5+ Kc2 d3+ Kc3 Nec4 Kd4 Na3 Qc3 Ra5 Rb1 a1B Nf3 Bf4 Kc5 d4 Ng2 Ra7 Rg1 h1B Nc6 h2 e7 Be6 c8B Bc7 Nd8 Ra6 Nge1+ Bg2 Rb3 h1N Nh4 Kh2 Nf5 Nhg3 Bh5 Bh3 Ng2 Ne2 Bd7 Ra4 Rb2 Rb4 Ra2 Rb1 Ng7 Bhf5 Bb2 Re1 Bc1 Bb2 Ra1 Bg4 Bc6 Bc8 Bd7 Be6 Kc6 Nb3 Bg5 d2 Be3 d1Q Bd2 d3 Qc5 Nc2 Bb4 d2 Ra7 Na3 Qc3 Nf6 e8Q Qc2 Qg6 d1N Qf5 Nbd2 Qfc5 Qa4 Rb7 Nde3 Ra7 Bb8 Rc7 Ba1 Kd6 Ne8+ Ke7 Bb2 Rb7 Bc7 Ra7 Nfg3 Rf1 Ba1 Rf7 Ngf1 Nf5 Rg5 Ng7 Bb2 Qb3 Bd4 Qbc3 Bf6+ Kf8 Qa5 Nh4 Rg1 Ng2 Nac4 Ra8 Qa2 Ra4 Qc2 Ra3 Qa4 Ra1 Bd4 Ke7 Na3 Bg6 Bde5 Bh5 Bf6+
K1q4q/3P1qr1/b2R4/2bNRQBP/kqn2B1b/1r1q1N2/1Q2Rq1b/1B2n3 w - - 0 1 illegal: No possible last move, all moves rejected
1b1nQbB1/2P1P2N/8/q4r1N/2rrR3/k1nR2nQ/2r1nRbb/3KBnQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Kd6 b4 f5 h4 g5 h5 a5 b6 d3 b5 Kc5 e5 Kb4 h6 d5 e6 a4 b7 d2+ Ke2 d4 b6 a3 c5 f3+ Kf2 a2 e7 d3 h7 g3+ Ke3 f4+ Ke4 g2 c6 f2 Kf3 g4+ Ke4 f3 Ke3 g3 Be2 f1N+ Kf4 f2 Kf3 Ra4 Rh2 Nh6 Nh3 g1B Nc3 g2 Nf4 Bh3 Nh5 Nf5 Ne4 N5g3 Ng5 Rg8 h8Q Rg7 Qc2 d1N Bd2+ Nc3 Qd1 Ka3 Nh7 Rc4 Be1 d2 Rb1 a1B Rb4 Rgg4 Bd3 Rc5 Re4 Bb2 Qc1 d1R Bc4 Rd4 Bg8 Qd5 Qe3 Rcc4 Qg5 Qa5 c7 Nc6 b8R Nd8 b7 Rc6 Rh1 Bh2 Rc8 Bc1 b8Q Be3 Qbb5 Rcc4 Qe8 Rd2 Rb8 Ba7 Rb2 Bb8 Qgg7 Rdd4 Rd2 Rg5 Rd3 g1R Qgg6 Ne2 Qgg7 Nfg3 Qgg6 Rg2 Rf1 Be6 Ke3 Bd7 Kd2 Rf5 Qg4 Bc6 Qh3 Kb3 Qg7 Ka3 Rh1 Bg1 Rh2 f1N+ Kc2 Rgf2 Rg2 Bh2 Qgg4 R2f4 Rf2 Rfc5 Qg7 Rff5 Qgg6 Nh1 Qg1 Nhg3 Rh4 Bf3 Re4 Bg2 Rd2 Rb5 Rd3 Rb3 Ref4 Nb1+ Kd1 Rbc3 Rd2 Rc2 Re4 Rc6 Rd3+ R6c3 Rd2 Rcc4 Rd3+ Nbc3+
nRQ2n2/7n/B3n3/4K1Nr/1nQ2r1n/rRBR1n1b/1NnP1bkP/4Q1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 b4 Kd6 e4 Ke5 b6 f5 b7 g5 b5 c5 b6 a5 Bb2+ c3 Qa4 g3+ Kf3 g2 Qa3 c4 Ra2 a4 Ba1 g4+ Kf2 f3 Kg3 f2 Qc1 a3 Qd1 Nd7 b8R Rh5 b7 Ngf6 Bd3 f1N+ Kf2 Kf4 e5 c2 e6 c1N e7 c3 e8Q g3+ Ke1 c2 Nf3 g1N Bb5 g2 Kf2 Nce2 Bc3 c1N Nh4 Qb6+ Bd4 Nh3+ Ke1 g1N Bc6 Nh7 Bf6 Nd4 Qd8 Ne3 Qe2 N3g5 Kf2 Nd5 Qd3 Nge6 Qc3 Nd3+ Kg2 Bc5 Qe8 Ndc7 Qc4 Nb4 Be4 Ndf8 Bd3 Nf3 Nc3 Ra7 Rb1 Na8 Raa1 a2 Nd1 Ra3 Rb3 Qa7 Rc1 a1N Rcc3 Nac2 Nb2 Kg4 Kf2 Kh3 Be2 f4 Rd3 Neg5 Qe3 Nge6 Bg7 Nb5 Bc3 Nbd4 Nf5 Qb6 Ng3 Nh4 Qe5 f3 Ne4 Na1 Ke3 f2 Ng5+ Kg2 Ke4 f1R Qcd5 Nac2 Qc4 Nec7 Qe8 Nce6 Ke5 Rf4 Rh3 Ng7 Qg6 Na1 Qcf7 Nb5 Qb1 Ra6 Qe1 Nac2 Rf3 Be6 Rd8 Bh3 b8Q Ra3 Qbc7 Qa7 Rb8 Bb6 Qe8 Nge6 Qec8 Bg1 Bd3 Qf2 Be2 Nbd4 Ba6 Qf1 Rd3 Bf2 Qc5 Qg1 Qc4 Ndf3+
k2n1q2/2R2Q1N/nQ1nbqRq/2n2r1P/1b5b/1P5b/1q2BR1N/2B2rKN w - - 0 1 illegal: No possible last move, all moves rejected
3b2BR/KNR1r1n1/n2Nb3/P3Pb1q/nN4k1/rb1Bq3/qB1Q3Q/n4q2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 g4 h5 a4 f5 e4 b5 d4 c5 g5 c4 g6 b3 d6 Ke6 d7 b4 e5 b2 g7 f3 Ke3 c3 Nd2 b1B Ra3 h3 Bd3 f4+ Ke4 f2 Qf3 f1N Nc4 h2 Ne2 b3 Qf2 b2 Qh4 f3 Bg5 f2 Bf6 c2 Nd6 c1Q Nf7 Nd2+ Ke3 f1Q Nc3 Nh6 g8B Rh7 Nb5 Na6 Qe4 h4 Qb7 h3 Rc3 Qa5 d8Q Be7 Bg5 Nb3+ Ke4 Ba2 Na7 b1N Nc6 Nf5 Nb4 Ng7 Rc7 Na1 Be3 Qa3 Bc1 Bb3 Bb2 Nc3+ Ke3 Qc5 Qg2 Qa2 Qg1 Ra7 a5 Na4 Qf2 Rb7 Qd2 Rh6 Qf8 Bd8 Ke4 Qc3 Qc5 Qcc1 Qcc2 Rf6 Nd6+ Rf7 Rg1 h1B+ Ke3 Bg2 Rh1 Be4 Rh2 Bd7 Rh1 h2 d5+ Ke7 Kd4 Rf3 Nc4 Bf5 d6+ Ke8 Kd5 Bde6+ Kc6 Rg3 d7+ Ke7 Nd6 Ra7 Rg1 h1Q+ Kb5 Qh5 Rh1 Qce1 Rh4 Qe3 Qh2 Rg4 Qcd2 Rc4 Rh3 Rc3 Rh4 Bc2 Rh3 Ra3 Kc6 Bcb3 Kb5 Qhd1 Rh8 Qh5 Bc4 Bb1 Qhf2 Bh3 Rc5 Bb6 d8N Rd7 N8b7 Bd8 Rc6 Be4 Bd3 Rc7 Bh7 Ke6 Qh2 Re7 Rc7 Bg6 Bg8+ Bf7 Ne4 Kf5 Ned6+ Kg5 Kc6 Bf5 Kb5 B7e6 Kc6 N4c5 Kb6 Kg4 Ka7 Na4+
1n5R/n2kn1P1/Kb4BN/n4b2/2Qqb2B/PQ1rqNqq/Rb3r2/4B1R1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 b5 Ke2 c5 Kd3 f5 g4 h5 d6 b3 g5 c4+ Kd4 b2 Kc5 h3 d4 h2 a3 h4 g6 f3 e5 b4 Kb5 c3 d5 f2 g7 h3 e6 f4 e7 f3 Qe2 b3 Nd2 b1Q Qe1 c2 Qe3 b2 Qc3 Bf5 Qd3 Kd7 e8R Nc6 Ne4 Nge7 Bg2 f1N Ng3 f2 Qc4 Ne3 Be4 f1Q Bg2 Qf4 Qf1 Nc4 Nh5 Qg3 Bf3 N4a5 Bd2 c1B Qc4 Qd3 Be4 b1N Nf3 Qe3 Rg1 h1B Ra2 h2 Be1 Bb2 Bc2 Rc8 Ka6 Nc3 Qb3 Rb8 Qc4 Nb5 Nf6+ Kc8 Be4 Na7 Ng8 Rb3 Nh6 Rd3 d7+ Kc7 Qb3 Bg2 Qc4 h1Q Qb3 Qhh3 Qc4 Qa8 d8B+ Kd7 d6 Qb8 Qb3 Qb4 Qc4 Bh1 Qb3 Qbd4 Qc4 Nd5 Bh4 Be7 Rg8 Bd8 Qb3 Rh7 Rh8 Bb6 Qc4 Nde7 Qb3 Be6 Bg6 Bf5 Ng8 Kc8 d7+ Kc7 Nh6 Kd6 Ng5 Bhe4 Nf3 Kc7 Qa4 Kd6 d8Q+ Ke6 Qg8+ Kd7 Nf7 Rh5 Qc4 Rg5 Qb8 Rg4 Nh6 Rf4 Nd2 Rf2 Nf3 Bc7 Qbb5 Bb6 Qbb3 Nb8+
n1Nk3N/bPbrNbQP/3q3K/qb1R3n/5R2/4r3/1B4nn/r3rQRB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 e4 g3 e5 a4 h5 g2 c5 d3 e6 d4 b6 g4 b7 f3 e7 f2 b5 g3 c6 f4 b6 f3 c7 a3 h6 a2 h7 Nd7 b8Q Ra7 Be2 f1B Rh6 f2 Bf3 Ngf6 Rh4 Nh5 Ne2 g1B Qe1 g2 Kd1 d2 Kc2 d1N Kd3 Ne3 Ke4 d3 Bb2 d2 Rf4 d1Q Qc3 Qd6 Qg7 Bh2 Qb7 g1R Bh1 Ng2 Kf5 Ra3 Kg5 Re3 Qa8 Bg3 b7 Nb6 Qb8 Na8 Nbc3 Be6 c8N Bf7 Nd5 Qa5 Qa7 Kd7 e8R Bh2 Ree4 Kd8 Re5 Bg3 Re1 a1R Qa6 Rg8 Nde7 Bh2 Nd4 Bb5 Rd5 f1N Ng6 Bg3 Kh6 Nh2 Rc1 Rge1 Nf5 Be7 Rb1 Bf6 Nfe7 Bd4 Rd1 Ba7 Rc1 R1e2 Rg1 Ree1 Qf6 Rg7 Nh8 Bd7 Qf1 Bb5 Qg6 Be6 Nf5 Rd7 Nfe7 Bf7 Qf6 Qda3 Qg7 Qc5 Rh4 Bc7 Rf4 Qd6+
6r1/b1n5/1N3rn1/1bnB1KNq/1Q1R4/nN1rPRBP/pn1B1q2/2Qb1k2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 b4+ Kc4 e3+ d3 c3 g5 h3 a5 b6 d5+ Ke5 f5 b7 g3 b5 f3 b6 f4 Bb2 d4 Ra2 f2 Ke4 f3 Rh2 g2 Ra3 g4 Ra2 g3 Bc1 a4 Re2 a3 Rc2 a2 Rh1 Na6 b8N Qe8+ Kf4 Nf6 b7 Ne4 Qe2 Rg8 Nc6 Nec5 b8B Qh5 Nd8 Nc7 Ba7 Bd7 Bb2 Bb5 Nf7 Rd8 Qd2 Be7 Be2 f1N Bc1 f2 Nf3 g1N Bb8 g2 N3g5 Nf3 Kf5 Ne5 Bf3 g1Q Bg2 Ng6 Nd6+ Kb3 Nc8 Kc4 Qe1 d2 Nb6+ Kd3 c4 d1B Qb4 Nd2 Bd5 Ke2 Rc3 Kf1 Rd3 Rd7 Rh2 Bd8 Rg2 Be7 Rg3 Qg2 Rf3 Rdd8 Nc3 Nb1 Ne2 Na3 Bd2 Bd6 Nc1 Qg1 Rc3 d3 Nb3 Be5 Rc2 Bd4 Rb2 Ne8 Bg3 Nc7 Be1 d2 Rc2 Ne4 c5 Qh2 c6 Qg2 Na4 Ba7 Rc4 Nc5 Nb6 Rd7 Bf7 Rd3 Bd5 Be2 Rd4 d1N Bd2 Nb2 Be4 Bd1 Bd5 N7e6 c7 Qg1 c8Q Nc7 Qc3 N7a6 Na5 Nb7 Nb3 Kg2 Kf6 f1R Rff4+ Rf3 Qa5 Qf2 Qc1 Kf1 Qb4 Nbc5 Rf5 Nc7 Rff4 Ne7 Rf5 Rf4 Ke5 Ng6+ Kf6 Re4 Rf3 Re6+ Kf5 Rf6+
Q2B3n/2NbNnKb/1kN3R1/2bq1R1R/p7/r2P4/qPB1nnnr/6Qr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Ke5 Kc7 e4 f5 g4 a5 g5 h3 g6 c3 g7 c2 Qg4 h4 Qg5 c4 Ne2 h2 Nbc3 f3 Qg4 h3 Qf4 f2 Qg3 f4 Nd1 f3 Bg2 f1N Ra2 c3 Rg1 h1R Ne3 f2 Nd4 h2 Nc6 Bc5 Nf5 Bd7 Nfe7 Nh6 Kf6+ Kb6 g8R Ne3 e5 f1B e6 Nf7 Rg5 Bd3 Kg7 Bh7 Be4 Ng2 Rh5 Ra6 Rf1 Ra7 Rff5 Ra6 Nd4 Nc6 Bd3 Nce5 Ndc6 Ra8 Qe3 Ra6 Qg1 Ng6 Ra4 Ra7 Rg4 Ra8 Ng8 Ra7 e7 Qa8 e8N Qb7 Nb8 Qd5 Ne7 Ra6 Nc7 Ra7 Be2 Qa2 d3 Ra6 Bf4 c1N Nbc6 c2 Bd1 Ne2 Rgg5 c1Q Bc2 Qcb1 Bg3 Qd5 Bh4 Qba2 Rg3 Rb8 Bf6 Ngh8 Rg6 Rba8 Ng8 Re8 Bd8 Re4 Nge7 Ra4 Qf1 Ra3 Qg1 a4 Nb4+ Ka5 b6 Ra7 b7 Ra6 Rgg5 Rh6 Rg4 Kb6 b8Q+ Ka5 Qa8+ Kb6 Qf2 Rg1 Qf1 h1N Nbc6 Nf2 Rg6 Rh1 Qe1 Rh2 Qg1 Rh1 Rhg5 R6h3 Rh5 R3h2
qB2b2n/1nbq2RK/Bk1r4/N6P/2q2B1q/b1N1P1QR/p5n1/1r1q1QN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 f5 h4 g5 c4 d5 b4 Kd7 h5 Kc7 c5 g3 c6 a4 Ra2 g4 Be3 g2 Rh3 a3 Ra1 f3 Qb3 a2 Bc1 f2 Bd2 f4 Qa4 f3 Bc1 g3 Bg5 Nh6 Rh4 Kb6 c7 Nf7 Re4 Ra6 Rh4 Nd7 Rh2 Nc5+ Kc2 d3+ Kd2 d4 Qa3 Bd7 c8Q Nb7 Bf6 Be8 Qh3 Qa8 Be5 Bd6 Rh1 Bc7 Bf4 Rh6 Rh2 Nh8 Nc3 Rd6 Qf5 Ra4 Rh3 Ra7 Qb3 Ra3 Qg8 Rb3 Rc1 Rb1 Qgg6 Ka7 b6+ Ka6 b5+ Ka5 Kd1 d2 Kc2 d1N Kd3 Ne3 Ke4 d3 Ke5 d2 Rc2 d1Q Rd2 Rd7+ Kf6 Rd6+ Kg7 Qa4 Kh7 Qe4 Be5 Qh4 Rc2 Nd8 b7 Kb6 b8N Nb7 Nc6 Ra1 Rh2 Rb1 Nh3 g1B Na5 g2 Qg3 Nd8 Rh1 Nb7 Bf4 Bh2 Qf7 g1Q Rd2 Qg2 Ng1 Qgh3 Qf5 Ng2 e3 Q3g4 Bc4 f1Q Rb2 Ne1 Rg2 f2 Qf6 Qd7+ Qf7 Kc5 b6 Qe2 Ba6 f1Q Qf2 Qf3 Rg7 Qd1 Qg3 Qc4 Qf6 Ng2 Qf8 Nd8 b7 Kb6 b8B Nb7 Qf5 Qdd8 Qd3 Qde7 Qf1 Qd7 Qg6 Bg3 Rh3 Be1 Qg5 Bd2 Qg6 Bc1 Qg3 Ba3
2Q1K2N/3n3r/R3bk1r/1n4np/Bb1PP2Q/Rn2rq2/1BB3Nq/R2n1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 c5 Ke4 a5 Ke5 h5 b4 f5 g4 f3 d4 f2 e4 h3 b6 a4 g5 a3 b5 h2 g6 c3 g7 f4 b7 a2 b6 c2 Bb2 c1R Bg2 f1Q Qg4 c4 Nc3 f3 Nce2 c3 Qh3 f2 Qf5 c2 Qg4 Be6 Bf3 Nf6 g8B Ra6 Nh3 Re1 Qh4 c1N Nhf4 Rh7 Ng2 Nb3 Nef4 Re3 Bd1 Qd3 Rf1 h1N Bc2 Qd1 Bf7 Qf3 Be8 Qc8 Rfe1 f1B Ba4 Nf2 Ng6+ Kf7 Rec1 Bb4 Nh8+ Kg7 Re1 Nd1 Re2 Qc4 Rd2 Qce2 Rd3 Nd2 Ra3 Nd5 Qh2 N5c3 Qh4 Ba5 Kd6 Nb5+ Ke7 Nd7 b8Q Bb4+ Ke8 Qef2 Qg4+ Kf6 b7 Q2g3 Qc8 Qh2 b8R Rc6 Rb1 a1N Ra8 Nab3 Rba1 Qfg3 Ra6 Nf3 Nh4 Ng5 Ng2 Qf3 Qg3 Rh6 Qg4 Rc7 Qh4 Ndc5 Qb7 Rch7 Qc8 Nd7
q2n1N2/4qqR1/1B1B2N1/Rr1B1P1q/1Q1p4/3Kb1Nr/nQnq3P/4kb1b w - - 0 1 illegal: No possible last move
1nrN2Q1/kbq4K/1RB1rn1R/1RB1p1Nq/1n2n1N1/b1Q3r1/PP4b1/5n2 w - - 0 1 illegal: No proof kernel
1Q4rn/4Nqn1/r2R1B1q/N1N1p2q/b2Bn2n/4P3/2nR1b1P/KR1Qr1k1 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 Kd2 Kf7 b4 Kg6 f4 Kh5 c4 Kh4 Kc2 g5 Kb2 d5 f5 a5 f6 e5 b6 g3 c5 a4 c6 g4 b5 d3 f7 a3+ Ka2 d2 b7 d4 c7 d3 b6 Nf6 Qc2 d1N Nf3+ Kh3 Nd4 g1N Nc3 Kg2 Qb2 d2 Rb1 Nc6 b8N Nf2 b7 d1Q Qa1 Nf3 Ncb5 Qd7 Nc3 Bc5 f8B Nd8 Qb2 Ra6 Qb4 Rg8 Na4 N2e4 Nb6 Ne8 Qd2 Nh4 Qc2 Qf7+ Ka1 a2 N6d7 Ng7 Nf5 Bf2 Nc5 Bd7 c8R Ba4 e3 Qd6 Nc6 Qh6 b8Q Qfh5 Qcb2 Nf7 Rd1 Nh8 Rd6 Kg1 Qe2 g2 Rcd8 g3 Na5 Qf7 Be7 Qhh5 Kb2 a1N Bf6 Nc2 Qg4 Kh1 Qd1+ g1R Rd2 g2 Ne7 Re1 R8d4 g1Q Rd6 Na3 Ka1 Qgg6 Bb2 Qgh6 Bc3 Kg1 Bd4 Nc2+
1K1N3R/R2qb1b1/q3N2Q/3p2Qq/rnPP1rn1/k1q1r2R/6b1/4qNBB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 f5 e4 h5 g5 d5 g6 b3 g7 Kb4 d3 b2 b6 f3 b7 a4 Ra3 f4 Rh3 f2 Bg2 f1Q Qe2 f3 Ra1 a3 Ra2 f2 Rf3 h3 Bh1 h4 Qe3 h2 Qh6 h3 Rf7 Na6 b8N Be7 Nf3 Qd7 Ng5 Nf6 Ne6 Re8 Nd2 b1Q g8Q Qb3 Rh7 Qe2 Ra1 f1R Qgg5 Rf4 Nf1 a2 Be3 Ka3 Bg1 Nb4 Nc6 Ra4 Ncd8 Qe1 c4 Qc2 Bf3 h1Q Bg2 Qh2 Bh1 Qhf2 Rh8 h2 Rh7 Qb6 Rh8 Qcc3+ d4 Qa6 Qhg6 Bf8 Rh3 Bg7 Q6h6 Re7 Rd1 a1B Rb1 Na2 Rb7 Nb4 Ra7 Bb2 Nc6 Qdb7 Kd6 Ng4 e5 Bc1 Nd8 Bf5 e6 Re8 e7 Be4 Ne6 Bg2 Nd2 Qbb5 Kc7 Bb2 Ncd8 Qd7+ Kb8 Bc1 Nf1 Be3 Qhg6 Bf2 Q5h6 Bh4 Be3 Rh8 e8R Be7 Qhg5 Rh5 Q5h6 Re5 Bg1 Re3 Rh8 Bf3 Bg2 h1Q Qgg5 Qh2 Bh1 Bg2 Rg3 Qh4 Rh3 Qh5
q1nRN3/1kb1bB2/2q2rRr/r1P3RN/rB2n1P1/5Qp1/bKNQ1n2/3r4 w - - 0 1 illegal: No proof kernel
5b2/bQ2BB1n/Q2bq1bn/P3Q1q1/p1R5/3N1P2/1rnrKB1R/k1b1N2q w - - 0 1 illegal: No proof kernel
8/3kBQ1r/NB2rb1p/5brq/1QQnbq2/PN5B/R1PbR2q/4nKb1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 f4 e5 g4 d5 a3 b5 g6 d3 f5 d4 f6 h6 g7 b3 g5 d2+ Kf2 d3 g6 b4 Nf3 b2 Ng5 e3+ Kg1 e4 Rh3 b3 Rh1 e2 Rh5 e1B Qg4 d1Q Qe6+ Be7 Qa6 e3 Nc3 b1R Qa4+ Nc6 Qh4 d2 Nb5 e2 Bg2 b2 Nd4 Nb4 Bd5 Qd6 Bf3 Rh7 Bb7 Bf2+ Kg2 e1B Qg4 Ra5 Ne4 Bg1 Ra2 Qh2+ Kf1 Nd3 f7+ Kd8 Rh4 Rg5 f8B Bf5 Bd5 Kd7 Nb3 Ra1 Ba8 b1Q Nec5+ Kc7 Na6+ Kd7 Qf4 Qh5 Qb4 Bd8 Rc4 d1B Be3 Bf3 Bb6 Ne7 g8Q Qc1 g7 Nc6 Re4 Qcf4 Qgc4 Nd4 g8Q Bf6 Be7 Bd2+ Re1 Rc1 Qgf7 Rb1 Nc1 Rb3 Re2 Ne1 Bb7 Re3 Nb3 Re6 Bd5 Qfg3 Be4 Bh1 Bg2 Qgg4 Bh3 Bhe4 Qbc3 Qgh4 Q3b4 Q4f4+
3K1qQq/2nbn3/1qb1q1P1/1r1rB2n/8/NBN1b2Q/RP1kp1Nq/B6R w - - 0 1 illegal: Other
1RrB1b1R/2nQN3/2K1N1Pb/kB3P2/5bn1/Bq3pr1/b1r1qQ1b/q3N3 w - - 0 1 illegal: No proof kernel
NNqR3K/3b1q2/3nrpbn/2bq2b1/Q1B1P2P/4B1Qr/2b1nR2/1kN2R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 e4 Ke5 c4 d5 b6 a5 b7 g5 b5 d3 b6 Kd4 h3 a4 c5 d2 c6 g3+ Kf3 g2 c7 a3 Qc2 d1B+ Qe2 g4+ Kf2 f3 Kg3 a2 Kf4 f2 Qa6 g3 Qa3 Be7 Nd2 Ra6 Qa5 Nd7 Kf5 Ne5+ Kf4 Nc4 b8N Bd7 c8Q Bh5 b7 Nd6 Rh2 Nh6 Qc6 Bg6 Qc8 Bg5+ Kf3 f6 Bd3 f1B Qcc7 Qc8 Bc4 Bd3 Qb4 Bc2 Qa4 Kc3 Rb1 a1Q h4 Qa2 Ra1 d4 Rb1 d3 Ra1 Nhf5 Kg4 Re8 Rb1 Re6 Ra1 Bb3 Ne2+ Kc2 Rb1 g1B Rf2 g2 Ra1 Bh7 Kh5 Nh6 Rb1 Ra5 Ra1 Rf5 Rb1 Rf3 Ra1 Bg8 Kg6 Bf7+ Kh7 Rh3 Kg7 Bg6 Rb1 Ndf7 Qg3 Nd6 Ra1 Qc7 Kh8 Qc5 Nb1 d2 Nbc3 d1Q Nb5 Qdd5 Be3 Qcc6 Raf1 Qc8+ Kg7 Kb2 Nc7 Bc2 Nc1 Ka1 Na8 Kb1 Rf5 Bf2 Rf4 g1N Rf3 Qcc5 Kh8 Ne2 Rf5 Bg1 R5f2 Qc7 Nc6 Qb3 b8R Qbb7 Rd8 Qcc8 Nb8 Qbc7 Rg2 Q7b7 Ba7 Bc5 Rgf2 Bde8 Bb6 Qf7 Ba7 Bd7 Bb6 Bb4 Be3 Bc5
bn1r1q2/NrRN1RN1/4P3/1Q4K1/PB4B1/qp1Q1n1B/4q1bb/kn1n3n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 g4 Kc5 a4 Kd4 e4 h5 d3 b5 e5 c5 g5 f5 d6 b3 g6 b4 e6 c4 d7 b2 g7 c3 Nh3 b3 Ra2 c2 Rg1 Ne7 g8B Ra7 Ra1 Ng6 Qd2 Ne5+ Kf2 f3 Bf7 f4 Qe2 Bb7 Nc3 b1N Rg7 Bd6 Nd5 Ba8 Bd2 c1Q Nb6 Rb7 Bb4 Qf8 d8N Qa3 Nd7 Bc7 Ra2 Rg8 Rc2 Bd6 Ng1 h3 Rc7 h2 Bh3 h4 Bh5 h1B B5g4 Bg2 Rf7 Rh8 Bc5+ Kc3 d4 Rg8 Qb5 Kb2 d5 Ka1 Ne2 Rh8 Bb4 Rg8 Kg1 f2+ Kh2 f1Q Nc6 f3 Ng3 f2 Nh5 Qe2 Ng7 Rh8 Na7 f1N+ Kg1 Ne3 Kh2 Bc5 d6 Nd1 Nb6 Rg8 d7 Bd6 d8Q Rh8 Nd7 Rg8 Bf5 Rh8 Bhg4 h3 Kg3 h2 Kf4 h1N Bh3 Rg8 Bfg4 Nf3+ Kf5 Nd4+ Kg5 Bh2 Qf6 Rh8 Qf3 Rg8 Qfd3 Nf3+ Kf5 Qc5+ Kf6 Rd8 Kg6 Qf8 Kf5 Nh4+ Kg5 Nf3+
3bRnNR/RrQb1q2/Qb1BPb2/5p2/3P1K1N/q3b1nN/1rqkB3/5r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 b4 Kd4 e4 c5 e5 h5 g5 a5 b6 f5 b7 c3 b5 c4 d3 h3 b6 a4 g6 a3 g7 h2 e6 a2 Qc2 h4 Na3 h3 Qd2 c2 Rb1 a1B Rb5 c3 Nc4 Qe8 Qg2 Bd7 Nd2 Bc5 Ra5 Ra7 Nc4 Nf6 g8N Ne4 Ne5 Ng3 Bd2 c1B Ng6 c2 Nh4 Qf7 Be1 Be3 Ne7 c1B Nc8 Bf2 Ra2 Be7 Be2 Bce3 Bd2 Bd8 Bc1 Kc3 Bb2+ Kd2 Ra5 Rh7 Rd5 Ra2 Ba3 Baf6 Ne7 Rb2 Bd6 Bc5 d4 Rg7 Bd3 Rh7 Ng8 Rg7 Ne2 Rh7 Ra1 h1Q Ra7 Qa1 Ng1 h2 Nh3 h1Q Be2 Qh2 Qf1 Qa4 Qa1 Qc2 Qa6 Qg1 Re5 Qa1 Re3 Qa3 Rc3 Nc6 b8Q Ne7 b7 Bcb6 Qc7 Ng6 b8R Nf8 Kg2 f3+ Kh2 Bde7 Re8 Bd8 Rc4 Be3 Rc5 f2 Rd5 f1R Kg2 Rd1 Kf3 Bf2+ Kf4 Rf1 Rb5 Bc5 Rb8 Bb6 Rba8 Qe7 Rb8 Bb5 Rbb7 Kc1 Qd7 Kd2 Rc7 Qg7 Qc6 Qg6 Rg7 Qh5 Rg5 Rb7 Qc7 Qf7 Rh5 Bd7 Rh8 Be3+
Br1q3k/1qn1b1N1/2K1p3/5R1P/nR2n1Pn/B2NNbn1/3r1R2/1Q1Q1r1q w - - 0 1 illegal: No proof kernel
qQBq3n/4br2/1BkP2RK/5bNB/1P3qb1/1p3R1b/2N2rn1/Q2n2Qb w - - 0 1 illegal: No proof kernel
1k1rNr1B/RB1b2nr/Qb1p1PKQ/3b2Q1/1q1n3q/r2N1R2/3R3P/4n1r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 b4 e5 c4 g5 f4 a4 c5 d3+ Ke3 d2 b6 a3 c6 a2 f5 g3 c7 g2 b7 g4 b5 g3 b6 Nc6 b8Q Qh4 b7 Nh6 f6 Nd4 Qb3 d1B Ba6 Bc5 Qd5 d6 Ne2 Kd7 Qg8 g1R Nf4 g2 Nd3 Rh7 Qg5 Bb3 Nc3 Bd5 Nb5 Bb6 Qa7 Kc6 b8Q Bd7 Qh8 Rf8 Bd2 Rb1 Rf1 g1R Rf3 Rb4 Rd1 a1R Qhg7 Ra3 c8R+ Bc7 Rb8 Bb6 Ra8 Rb2 Bc1 Rbb3 Nc7 Nhf5+ Kd2 Rb4 Q7h6 Ng7 Ke3 Rb2 Ne8 Rba2 Bc4 Ra1 Qa5 Kb7 Ra7+ Kb8 Qa6 R1a2 Bd2 Rc2 Bb5 Rc8 Bc6 Rd8 Bb7 Nb3+ Ke2 e3 Bc1 Qb4 Rd2 Qh4 Nc5 Qb4 Kd3 e2 Ke3 e4 Kf4 e1N Nd3 Ne6+ Kf5 e3 Kg6 e2 Rd1 Qh4 Rd2 Nbd4 Rb2 Qf2 Qg7 Bb3 Qg3 Ng2 Bh6 e1Q Qg5 Qb4 Ra2 Qh4 Rd2 Bd5 Qh8 Re7 Bg7 Ne1 Qh6 Ref7 Bh8 Rh7 Re2 Ng7 Rc2 Nb5 Rd2 Nd4
Qq1bbB1n/3q2q1/1prQ1nNk/2bK4/n1Q2br1/3PP1N1/1BR1B3/2R2b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 c5 h4 g5 a4 f5 h5 Kf7 h6 Kg6 d6 g3+ Kf3 g4+ Kg2 b3 d3 c4 a5 b2 h7 c3 a6 c2 a7 b6 d7 Be7 Nc3 b1N Ba3 c1B Nb5 Nc6 Nd4 Ne5 Bb4 Nc3 Rh5 f3+ Kh1 g2+ Kh2 f4 Rh4 g3+ Kh3 f2 Nb5 f3 Rg4+ Kh6 Qb3 Bf4 Nd6 Na4 Qc4 Nf6 Ne4 Nf7 Rc1 Rg8 h8B Ba6 Ba3 Rc8 a8Q Bb5 Bd6 Qc7 d8Q Qd7 Qdc7 Bd8 Bf8+ Rg7 Qd6 Rc5 Kh4 Rc6 Nh3 g1Q Rg5 g2 Ng3 Qh2 Rf5 g1B Rc5 Qg2 Rc2 Bh2 e3 Qg1 Be2 f1Q Qb7 f2 Qa8 Qa1 Rc1 f1B Rc2 Qe5 Rc1 Qee8 Rc2 Be5 Nf4 Bd4 Ng6 Qe5 Qdd5 Qb8 Qd6 Kh7 Rc1 Rg8 Bhg7 Nh8 Kg5 Qg2 Kf4 Qg1 Qb3 Qg2 R5c2 Bc5 Qc4 Qg1 Bh6 Rg7 Kf3 Rg8 Bf4 Rg7 Be5 Kh6 Nh5 Qg5 Bb2 Be5 Ng3 Bf4 Qa2 Bc4 Qb3 Bf7 Qc4 Be8 Be7 Nh5 Ke4 Qf6 Kd5 Rg8 Nh4 Rg4 Ng6 Qg7 Bf8 Nf6+
k2B3N/2nqbK2/P2Nn1pr/q1Q4r/R6B/R2n2bP/bNQrbb2/1B6 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 f5 d4 b5 e4 c5 h3 Kc7 e5 Kb7 e6 c4 d6 b3 d5 b2 e7 g6 e8N f3 Kg3 b4 Kf4 f2 Ke5 g3 d7 f4 Ke6 f3 a5 b3 d6 g2 Qc2 c3 Rh2 Be7 Kf7 Nh6+ Kg7 Ng4 Ra2 Ne5 Nc7 Rh6 Bf4 Nd3 Qd2 c2 Qe2 c1B Na3 b1R Bd2 b2 Bf4 Nc6 Bg3 Nd4 Bh4 Ne6+ Kf7 Bf4 Qd2 Rd1 Nc4 b1N Ne8 Bg3 Nb2 Na3 Qc2 Nb5 Ra4 Nbc7 a6+ Kb8 Be2 f1Q Qc5 f2 Nf3 g1B Ng5 Bb7 Rh1 Qc8 d8B Bd5 d7 Qe1 Nd6 f1B Bf3 Ba2 Be4 Be2 Rh2 Nc1 Bb1 Rd2 Rf2 Rh5 Rf3 B1f2 Rfa3 Qb7 Kg8 Qb5 Ngf7 Nd3 Nh8 Qd1 Kf7 Qa5 Qc2 Ra7 Qc5 Ka8 Qc2 Bf8 Nf5 Ne5+ Kf6 Rd3 Qc5 Nb5 Be7 Rb7 d8Q+ Rb8 Nf7 Nbc7 Qc2 Rh6 Qd6 Rb5 Bd8 Rd4 Nh8 Rbd5 Bg5 Rdh4 Qb6 R4h5 Bh4 Qd3 Qd6 Qdb5 Qdc5 Rd2 Nd6 Nd3 Kf7 Be7 Ne4 Qc6 Nd6 Qd7
b1Kn1B2/3NQ3/PpB1B3/4nbR1/1nP1RNQ1/R1rrb2r/1q1b3q/2b1k3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 e4+ d3 a4 g5 h4 d5+ e6 b3 e5 b6 h5 g3 a5 g4 c3 g2 a6 b2 h6 d4 h7 g3 Ra4+ Bb4 Qc2 Qc7 Bh6 Ne7+ Kf6 Nd7+ Kg5 f5 Ra2 f4 Ne2 g1B Rh5 d2 Bh3 d1N Nc1 f3 Rh4 g2 Ra1 f2 Ra2 f1B Nd3 Nf2 Nc5 Nd3 Re4 Nc6 Kf5 Nd8 e7 Be3 e8B g1B e6 Qh2 e7 Bc1 Qa4 Bge3 Bf8 Bg2 Ra3 N7e5+ Nd7 Ra7 Qd1 Rc7 Qg4 Ba5 Kf6 Nb4 Kf5 Kd3 Kf6 Ndc6 Ke6 Kc2 Kd6 d3 Ke6 d2 c4 d1R Nc3 Kd2 Ne2 b1Q Kd6 Qb2 Nf4 Ke1+ Ke6 Rg8 h8R Rd3 Rh5 Rh8 Rf5 Rc3 Rg5 Rb7 Kd6 Rb8 Kc7 Nd8 Qf3 Rh6 Be6 Rh3 Qg4 Bh1 Nf6 Ra8 Bc6 Ra7+ Kb8 Rd7 e8Q Rdd3 Nd7 Bf3 Qe7 Bg2 Rd4 Be4 Kc7 Bb7 Kb8 Bf5 Re4 Ba8 Kc8 Nc2 Bf7 Rb3 Bb7 Bad2 Bc6 Rbc3 Be6 Nb4
1K4q1/n1N4P/1k1bQn1q/1b1qQ1BB/3rp1R1/P1nN2n1/B6R/rQ1r1n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 g5 Kd3 d5 f4 Kd7 h4 Kc7 c4 e5 c5 b5 c6 e4+ Ke2 b3 f6 b4 f7 b2 f5 b3 h5 d3+ Ke3 g3 Kd4 d2 Ke5 g2 h6 d4 f6 g4 h7 g3 Rh3 d3 Be2 Bd7 Nc3 b1Q Nf3 g1N Rh2 g2 Ne1 b2 Bh5 Kb6 c7 Ne2 c8B g1Q Nb5 Ng3 Nc7 Bb5 Be6 Bd6+ Kd5 Qh1 f8Q Nc6 f7 Na7 Qg7 Qb8 Qb3 d1R f8Q d2 Qff6 Qf8 Bef7 Qd3+ Ke6 Qd4 Nd3 b1N Qb4 Nc3 Qb1 Qc5 Qg4 Qd4 Qe5 Nf6 Qh3 Rg8 a3 Rd8 Qhf5 Rg4 Ra2 Qg8 Rh4 Rf4 Rg4 Rff1 Rb2 Rde1 Rc2 d1N Bg5 Ne3 Rh2 Rc1 Qg6 Rfd1 Qh6 Nef1 Qg6 Bb4 Qgf5 Rd6+ Ke7 Qc5 Ba2 Qcd5 Qfe6 Qg2 Qb2 Ra1 Qb1 Qg6 Qd7 Qh6 Kd8 Nc6+ Kc8 Na7+ Kb8 Bc5 Qdf5 Rd7 Qfe6+ Bd6 Rh3 Nf5 Be8 Qc6 Rh2 Bc5 Bd2 Rd4 Bh5 Bd6 Rgh4 Qd5 Bf4 Qgg6 Rg4 N5g3 Bg5 Qg8+
4B3/R1B1QnnP/2nQN2n/r1bQnbRP/3b3R/kN1q2r1/2q2r1p/K7 w - - 0 1 illegal: No proof kernel
r2Q2K1/R2R1b1P/1bp1q3/r1P2k1N/1Q3n1r/1b3NR1/Bq1nBn2/Nr5r w - - 0 1 illegal: No possible last move, all moves rejected
1q1KRQb1/3Q2PN/1bNB4/q2P3n/2B2rBp/1nqrR2b/n4q2/k5qQ w - - 0 1 illegal: No possible last move
qb4kN/1R1nbbP1/5nr1/1KPr4/1R2B2n/p2qQ3/6bB/NbQR1r1Q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 h5 g4 a5 b4 e5 c4 d5 c5 e3+ Kd3 h3 b6 e4+ Ke2 d3+ Ke1 e2 Kd2 e1B+ Ke3 h4 Kd4 e3 g5 a4 b7 d2 f5 a3 f6 e2 b5 h2 b6 h3 Bg2 Bf5 Nf3 Ra6 Nh4 Be7 Be4 Nd7 b8Q Rh5 b7 Bg3 Qe5 e1N b8R Ng2 Rb7 Qa8 Ng6 Nh4 Nh8+ Kf8 f7 Ngf6 Kc3 d4+ Kc4 d3 g6 Rd6 Qc2 d1B Bf4 d2 Qc1 Bb3+ Kb5 d1Q Nd2 Rg5 Qec3 Rd5 Qe3 Rg4 Rf1 h1R Rb1 h2 Re1 Qc2 Rd1 Rf1 Bd6 Ba2 Nb3 h1B Na1 Bg2 Rb4 Bb1 Bf4 Be6 Bb8 Be1 Bh2 Bg3 Qg1 Rgg5 Qh1 Bb8 Qe3 Kg7 Qc1 Kh6 g7 Qd3+ Qc4 Rg6 f8Q Kh7 Qe8 Qf3 Qc1 Bf7 Qd8 Qg3 Qb6 Qe3 Qe6 Kg8 Qh3 Qc3 Qhe3 Qd3+
r3N2n/1QBqQbP1/NB3pn1/1k2bN2/1q1n1Q2/r4P1b/1r5K/nR1n1R2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 axb5 e5 h5 e4 h6 gxh6 e3 h5 Bc4 h4 Bd3 exd3 Kf1 d5 c4 Kd7 g4 a5 Kg2 h5 b4 d2 f3 a4 e4 a3 c5 a2 b6 Kc6 b7 f6 e5 d3 g5 h3+ Kg3 h2 e6 h4+ Kh3 d4 g6 Qa5 g7 Nd7 b8B Ne5 Kg2 h3+ Kg3 Kb5 e7 Nh6 e8N Ng6 c6 Nf7 c7 Bd6+ Kf2 Be5 Qe2 d1B Nd2 Bb3 Rb1 a1N Ne4 Ra6 Qe3 d2 Ne2 d1Q Rf1 h1R N2g3 h2 Kg2 d3 Nf5 d2 Nc5 Rf8 Ba7 Nfh8 Bb6 Bf7 Ba3 Bce6 c8Q Rg1+ Kh3 h1N Qb7 Ng3 Kh2 Ne2+ Qf4 Rg4 Qe7 Nd4 Bc7 Rb6 Na6 Qda4 Bc1 d1N Be3 Bd7 Qg3 Re4 Qf4 Rb7 Bf2 Re3 Bg1 Ra3 Bf2 Kc4 b5 Q5b4 b6 Kb5 Be3 Rb8 b7 Bde6 Nc5 Qa7 Na6 Ra8 b8Q+ Qb7 Bb6 Qd7 Qb7 Rg8 Ng3 Bh3 Nf5 Rc8 Bg1 Rc2+ Bf2 Rb2 Bc7+ Ka4 Ned6 Ra8 Ne8 Ndc2 Bfb6 Kb5 Kh1 Nd4 Kg1 Rbb3 Kh2 Rb2+
nQ2B1k1/K5Pr/qp2r3/1qb4b/NN2Qn1B/Pr1N3q/2R1rbr1/2R2B2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 c5 d4 f5 g4 Kf7 e4 h5 e5 h3 g5 f3 Ke3 f4+ Ke4 b3 a3 c4 d6 f2 Kd5 h2 Kc5 f3 d5 b6+ Kb5 h4 d7 b2 d6 h3 Qc2 c3 Nd2 b1R+ Nb3 Na6 Qd1 c2 Bb2 c1B Qd3 Nf6 g6+ Kg8 g7 Rh6 e6 Be3 e7 Nh5 e8B Nf4 Nd4 Nc7+ Kc6 Re6 Bc3 Rb3 Be1 Ra5 Qg6 Rg5 Nde2 Na8 Nc1 Rg2 Qe4 Ba6 Rb1 Be2 Kb7 Qc8+ Ka7 Bd4 d8Q Bd1 d7 Bfc5 Be2 f1Q Rb2 f2 Rc2 Be3 Bb5 Bh5 Nge2 Bed4 Rg1 h1Q Nc3 h2 Na4 Be3 Ba6 Qb5 Nd3 f1R Bh4 Rff2 Rgc1 Re2 Qc7 Bf2 d8N Qf1 Nc6 h1R Qce5 Rgg6 Ncb4 Qh3 Qb8 Rh2 Bb7 Rh6 Bd5 Rg2 Bc4 Rh7 Ne5 Ree3 Bf1 Re2 Ned3 Qca6+
2R2qqQ/bb2pr2/1q2k3/q1r4q/3n2R1/1bBP1NPK/4n3/BN1BnQ1Q w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 b4 Kf7 f4 a5 Kf2 c5 g3 h5 Kg2 h3+ Kh2 e3 b6 h4 b5 c3 d3 a4 f5 c2 b7 c4 b6 e2 f6 e1N Qd2 a3 Qa5 c3 Bg2 a2 Qc5 Be6 Qe5 Rh5 Qe4 Rc5 Bh6 c1Q Bf3 c2 Qh7+ Bg7 Be3 Nc6 b8B Qf8 b7 Nd4 Bc6 Bb3 Be8+ Ke6 f7 Nf6 Qh8 Nh5 Bd2 Nf4 Be3 Nfe2 Bf2 Qe3 Be5 c1Q b8Q Qc4 Ba4 Bh6 Qa7 Bf4 Bf6 Bb8 Qb7 Ba7 Nf3 Qd5 Bg1 Qdg5 Be5 Qgg8 Bf2 Qeh6 Be3 Rd8 Bd2 Rdd5 Bg7 Rf5 Bc3 Qf6 Nbd2 Qg6 Rc1 a1Q Nb1 Qa3 Ba1 Qb4 Be5 Qb6 Qe4 Qg5 Rc4 Qd2 Rg1 Qda5 Rg2 Qa8 f8Q Rf7 Rg1 Rh7 Qff4 Rf7 Rh1 Qaf8 Rc2 Rd5 Rc8 Rc5 Rf1 Bd5 Bd1 Bb3 Kh1 h2 Rf2 Nec2 Kg2 h1B+ Kh3 Ne1 Qb7 Nc6 Bec3 Ncd4 Ne5 Be4 Qc1 Bh1 Rf4 Bhd5 Rg4 Bf3 Kh2 h3 Qf4 Bfd5 Qf1 Bf3 Qe4 Bg2 Qeh7 Bc6 Nf3 Bb7 Kh1 h2 Qh4 Nec2 Kg2 Ne1+ Kh3 h1Q+ Nh2 Qd5 Nf3 Rc4 Kh2 Rc5 Qhh3 Qh6 Qh1 Qhf8 Q3f1 Qe5 Kh3 Qh5+
B1bN2BQ/2p2K2/1r1R3n/1B2r1Q1/R1r3qP/2R4r/NnP2bn1/r3kqq1 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 e5 axb5 h6 d4 exd4 Be3 Bc5 Bf2 Be7 Bh4 gxf4 g5 Ba3 g6 Bf8 Bg5 hxg5 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 b4 Ke4 b6 Ke3 Kf5 Kf2 e4 a5 b7 d5+ Ke5 f5 h3 g4 b5 g3 b6 a4 g7 g2 Rh2 f3 Bd3 f4 Na3 Qd7 Rb1 Ra6 Ne2 Bc5 Bc4 d3 Bb5 d4 Qh1 d2 Rd1 d3 Nc1 Nf6 g8B Qg4 Nc4 a3 Bc6 a2 Bcd5 a1R Bc6 Nd5 Nd6 Ne3 Kf6 Rh7 Bcd5 Nc6 b8Q Nd4 b7 Ndf5 e5 Rb6 e6 Ra4 e7 Rc4 e8B Rh8 Re1 d1N Kf7 d2 Na2 Nb2 Ra1 d1R Bb5 Re1 Qg1+ Ke2 Qa8 f2 b8R f1R Nb7 f3 Nd8 f2 Rd1 Rh5 Rd4 Ra1 h4 Ke1 Rh3 Rg5 Rb7 Rh5 Ra7 Rg5 Qh2 g1Q Qg3 Ng2 Ra4 Bb7 Qf3 Nfe3 Qf5 Qh2 Nc6 Rh1 Bh7 f1Q Qh8 Bc8 Bg8 Qhg1 Nd8 Rh5 Rg3 Rh3 Ba8 Rg5 Qf4 Re5 Rd6 Nf5 Rc3 Bf2 Qg5 Nh6+
rK1b2n1/1PNq4/1R2q2Q/QB1r2r1/1b2n2B/q1rR1NR1/p1k1rP2/1b5Q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Kf6 g4 Ke5 c4 h5 b6 a5 b5 d5 g5 h3 c5 d3 Ke3 h2 g6 d2 b7 a4 c6 h4 c7 d4+ Ke2 e3 Kd3 h3 Kc4 Ke4 Kc5 e5+ Kb6 a3 g7 d3 Qe2 d1Q Bb2 d2 Bc3 a2 Qe1 e2 Bd4 Kd3 Bb2 e4 Na3 e3 Bf6 Na6 b8Q Qd5 Be7 Nc5 Qa7 Ne4 Qa4 Rh5 Qa7 Rg5 Rb1 Bf5 c8Q Qe6+ Kc7 Bg6 Bf6 Be7 b6 Bd8+ Kb7 Qa4 Be7 d1R Nb5 Qa3 Nc7 Kc2 Qaa5 Rdd5 Nf3 Qd7 Rg1 h1Q Rg3 h2 Rd1 Qg2 Rd3 h1R Qa1 e1R Bf6 Ra7+ Kb8 e2 Qca6 Qgh3 b7 Qhe6 Q6b6 Rh3 Qd6 Rgf5 Bh4 Rg5 Qf8 Rb1 Qff6 e1B Be2 Bf5 Qh6 Rb2 Bf1 Bh7 Be2 Bb4 Qh1 Ngf6 g8R Ra6 Rg6 Ng8 Rg2 Ra7 Nd2 Re3 Rg3 Rb3 Bf1 Rc3 Nf3 Re2 Rf6 Qee7 Rc6 Qee6 Rb6 Rd2 Nh2 Kd1 Rdf3 Nc5 Rg4 Bb1 Bb5+ Kc2 Rgg3 Re2 Rd3 Ne4 Nf3 Ra8+
N3q1k1/1PqpQ3/1BRnbKq1/Qq2n3/6Q1/3B2N1/PRN1r1nb/qr2b3 w - - 0 1 illegal: No possible last move, all moves rejected
nQK1q1Bn/qPp4b/Nr5B/b1qQr3/1bq1n2k/P5N1/2Rq1B2/R5Q1 w - - 0 1 illegal: No proof kernel
bbB1Q2B/qpn4K/1Q3R2/1P1b3n/qR1PBb1q/3N2Q1/1rrn4/1b1k3N w - - 0 1 illegal: Other
1q2nBR1/PN4q1/1K3n2/1BR1Q1R1/3N1Q1r/q3Pp1k/1b2Qq1b/2nb1rq1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 g4 b5 d4 h5 a4 c5 d6 Ke6 g5 Kf5 g6 Kg4 a5 f5 a6 f3 Ke3 h3 a7 h4 d5 b3 g7 b2 d7 c4 Kd4 f4 e3 h2 d6 h3 Kc5 b4 Ra3 b3 Qd2 f2 Qd3 c3 Qa6 c2 Kb5 Qf6 d8R Rh4 d7 Bd6 Qb6 Na6 Bg2 f1Q+ Kc6 Nc7 Qa6 Ne8 Nf3 Qf2 Nc3 b1Q Ng5 b2 Ra5 Qa2 Bf1 b1Q Nce4 Qb8 Rc5 Qa3 Nf3 Qh6 Qc4 Ngf6 g8Q+ Qg7 Qgf7 Be5 Bd2 c1B Nd6 Bcb2 Nd4 Bb7+ Kb6 Bf3+ Nb7 Bd1 Be2+ f3 Re1 h1Q Bb4 h2 Rg1+ Kh3 Rg5 Qhg1 Qa2 h1N Bb5 Bf4 Qac4 Bg3 Qe2 Bh2 Rdc8 Ng3 d8Q Bc1 Qde7 Bb2 Qd2 Ne2 Qe5 Nc1 Qe2 Nc7 Rg8 Nce8 Rg6 Qc8 Rg5 Rb8 Rc7 Qd8 Bf8 Rc8 Qfc4 Qdd6+ Rc6 Qb8 Rc5 Rd8 Nc2 Rd5 Qcf4 Rd3 Nd4 Rd2 Qe1 Re2 Qd2 Re1 Qe2 Rf1
Qn1nr3/PrnbB1qk/1NP1B1R1/2b3Qp/b2nR3/3N2nr/4qN2/1K1Q4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 a4 Kg7 c4 b5 Kc2 e5 f4 d5 g4 h3 c5 d3+ Kb2 b3 g5 d4 g6 e4 c6 d2 a5 e3 a6 h2 a7 d3 Ra3 b4 Ra1 e2 Qc2 d1Q Nh3 e1N Nc3 d2 Ne4 Nf3 Rg1 h1N Kb1 b2 Ra4 Ng3 Nc5 Qd4 Bc4 Qe2 Be6 d1B Nd3 Nh6 Nhf2 Nf7 f6+ Kh6 g7 Bc5 g8Q Nd8 f7 Qg7 f8N Bd7 Qd2 Nd4 Qe1 Bb3 Qd1 Bc2+ Ka2 b1R Ba3 Rb3 f5 Rb1 f6 Rb3 f7 Rb1 Ra5 Ba4+ Qc2 Rb3 Ka1 Rb2 Qd1 b3 Re1 Ra2+ Kb1 b2 Bb4 Ra3 Rg1 Rb3 Ba3 Rb7 Rg2 Bb4 Re5 Be7 Re4 Bc5 Ka2 b1N+ Ka1 Bb6 Be7 Na3 Rg1 Nab5 Kb1 Nc7 Rg2 Be8 Nd7 Bc5+ Nb6 Bd7 f8Q Kg6 Qf4 h6 Qgf8 Kh7 Rg1 h5 Qe8 Rf8 Qfd2 Rf3 Qf8 Ngf5 Rg6 Rh3 Qg5 Ng3 Qh4 Nba6 Bf6 Nf7 Qg5 Rd8 Qe7 Rh8 Qd8 Re8 Qa8 Nd8 Be7 Nb8
4r2r/PB5P/1qqR2q1/4pRNn/2nB3b/2b1N1k1/q2Qb1B1/Qr1qN1K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 Kf7 a4 Kf6 c4 Ke5 h5 b5 h6 d5 c5 g5 h7 b3 c6 g3 a5 g4 c7 b2 f3 g2 Kf2 g3+ Ke1 d3 f6 d4 f7 d2+ Ke2 Kf4 a6 e5 a7 b4 Nc3 b1Q Qa4 b3 Bb2 Qa2 Qa6 Be7 f8N Nd7 Rd1 Nb6 Rh5 Bg4 c8B Nc4 Bb7 Bh4 Ba1 b2 Qa3 Qg5 Ne6+ Kf5 Qb4 b1R Nd5 Nf6 Qb2 Rae8 Ne3+ Kg6 Qc1 Qh6 Rf5 Nh5 Ng5 Qg7 N1h3 g1B Nf2 g2 Nd3 Qd7 Qa3 Qc6 Ne1 Bgf2 Qa6 g1Q Bg2 Qb6 Qa5 Qh1 Qb4 Bg1 Kf1 d3 f4 Bf3 Rc1 d1Q Bd4 Qdc2 Rd1 d2 Qb2 Bg4 Qa1 Kh6 Rf7 Qcg6 f5 Bf3 f6 Bg4 Rf8 Bf3 f7 Bg4 Rc1 d1Q Rc2 Bf3 Rf2 Bg4 Rf6 Bf3 Rd6 Bg4 Bh3 Qhc6 Bg2 Bgf2 Nf3 Bfg3 Ng5 Be2+ Kg1 Bf4 Rg8 Bfg3 Rg7 Bf4 f8Q Bfg3 Qf2 Bf4 Nd5 Bd2 Rf7 Bc3 Qe3 Ng3 Qf2 Kh5 Rf5 Kg4 Qe3 Nh5 Qd2 Kg3 Ne3 Qbb5 Re6 Qcb6 Rd6 Q5c6
2B4n/p2Q2rk/b2RB1n1/N1n1b1r1/7r/RbK1bq2/q2BPQ1P/1N2Q1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 d5 c4 f5 b6 Kf7 b7 Kg7 c5 f3 b5 f4 c6 d3 c7 f2 b6 g3 Ba3 d4 Bd6 f3 Qa4 g4 Qd1 g2 Ra5 g3 Bc5 Nh6 Be7 Nd7 b8Q Nf7 b7 Kh7 Ra3 Bg7 Qe1 Nf8 Qd1 Ng6 Bh4 Qd5 Qa4 Be5 Bf6 Qa2+ Kc1 d2+ Kd1 Rg8 Nh3 g1B Qa5 Rg7 Bg5 Nfh8 Bg2 f1N Nf4 f2 Bh3 g2 Nd3 Ng3 Nc1 Ne4 Nb3 Nc5 Bf5 Bd6 Qc3 Be5 Qg3 f1Q+ Qe1 Qf4 Be6 Be3 Na5 Qf3 Bf4 g1B Bh6 Qad5 Kc2 d1B+ Kb2 Bb3 Bf4 Bd7 c8B Bb5 Qc7 Ba6 b8Q Qc4 Qd7 d3+ Qc3 d2 Qb6 d1R Bg5 Bg3 Qe1 Rd4 Bh6 Qa4 Kc3 Rh4 Bg5 B1f2 Rf1 Bg1 Rf2 Bgf4 Rg2 Bc7 Rg4 Be5+ Rd4 Nb7 Qc5 Rb8 Qf8 Nc5 Qf4 Rb6 Qfg3 Rd6 Qgf2 Rd5 Bh6 Bc7 Rd1 Rg5 Rd4 Bcf4 Rd6 Be5+ Rd4 Rgh5 Ra1 Bc1+ Be3 Rg5 Ra2 Bf4 Rd6 Qa3 Ra1 Qb2+ Kb4 Qc2 Ra3 Bb2 Bc1 Bbe5 Bd2 Qa2 Qg3 Bed4 Qgf2 Bde3 Kc3 Be5+
q1R2R2/pb2Nrn1/NbP2b1P/6nB/n7/1rB3Rq/1r1r1K2/k1rBQ1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
Q3n1b1/pNn1PBQ1/1Nk2bP1/2b1B3/4qqn1/1brB4/r3RNKR/r3b3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 b4 c5 g4 f5 e4 h5 d4 f3 e5 c3 d5 c4 g6 f4 g5 h4 b5 a3 g7 a2 g6 h3 d6 h2 b6 c2 e6+ Kc6 b7 c3 d7 Bc5+ Be3 c1R e7 c2 Qd2 Na6 b8Q Qc7 Nc3 Nf6 g8B Ne8 Rb1 a1B Nd5 Bf6 Rb4 Ra1 Qc3 c1B Qb2 Bd2 Bg2 Be1+ Kf1 f2 Ke2 f1N Bd4 Ne3 Kf3 Ng4 Nb6 Qb7 Bf1 Nac7 Be6 Rf8 Kg2 f3+ Kh3 f2 Be5 Rh8+ Kg2 Rh3 Bf7 Rha3 Bd3 R3a2 Nh3 f1B+ Kf3 Be2+ Kg2 Bd1 Rd4 Bb3 Re4 Qa6 Nf2 Qc4 Re3 Qf4 Re2 Ba6 Qc8 Bac4 Qd8 Rc8 Qd4 Ng7 Qh8 Nge8 d8N+ Kb5 Nb7 Kc6 Qg7 Be6 Qd8 Bec4 Rg1 h1Q+ Kf1 Qhe4 Rg2 Be6 Rh2 Nd6 Qdf8 Nde8 Qfg8 Rd8 Kg1 Rd4 Q8f8 Rc4 Qfh8 Rc3 Kf1 Qd4 Kg2 Qde4+ Kh3 Qg5 Bg8 Nd6 Kg3 Qgf4+ Kh3 Qb4 Kg2 Bec4 Be6 Qa4 Qa8 Nde8 Bef5 Bf7 Be6 Bg8 Bf7 Qae4+
4K3/1qb2Nnn/4NQb1/4p1BQ/2Nb1Bnb/Pb1k2r1/5rPb/R1Rb3B w - - 0 1 illegal: Other
1r1r1nn1/1r2pQKr/1P1rB1NB/4r3/4k1B1/3b1n1r/6qP/R1bRNR1Q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kf6 f4 Kf5 b4 g5 c5 a5 b6 d5 b5 g3 b7 g4 c6 d3+ Ke3 d4+ Kd2 e3+ Ke1 e2 Kd2 e1R b6 g2 c7 a4 Qc2 g3 Qd1 a3 Bb2 a2 Ba3 Bh6 Be2 Qd5 Bg4+ Ke4 Nh3 g1N Bc1 g2 Na3 Nd7 b8Q Nf8 Nc2 Bf5 Qe8 Rb8 c8B Re3 Ne1 Qc6 Rb1 a1R Qf7 Ra7 Ra1 Rab7 Be6 Bh7 f5 Bg5 Nf4 Rh3 f6 Bf5 Qc2 Nf3+ Kd1 g1R Qg2 d2 Ke2 d1R Ng6 d3+ Kf2 R3h5 Kg3 Qc2 Bf4 d2 Be3 Rf1 Rg1 Rf2 Qh1 Re2 Bf4 Kd4 Rf1 Re5 Rg1 Bh6 Bg5 Bd3 Kf4 Rh3 Rf1 Rc1 Rg1 d1R Rf1 Re4+ Kf5 Qg2 Rg1 Rcc8 Bd2 Bg7 Bh6 Rd8 Qe8 Ng5 f7 Bc2 Nh4 Nd7 Kg6 Ke5 f8R Rd6 Rf3 Bd3 Nc2 Bf6 Rf2 Nf3 Qf7 Bg5 Kg7 Bc1 Rd1 Nf8 Ne1 Kd4 Rf1 Re5 Ng6 Ke4 Ra2 Reh5 Ra5 Re5 Ra1 Rh7+
br1b3b/1P3NQ1/n1krBbpQ/1b6/R1NR3P/bKnn3b/5B2/1Qq3B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 d5 b4 Kd7 f4 e5 c4 a5 Kc2 a4 h4 a3 b6 d3+ Kb3 d2 b7 g6 c5 g3 f5 g2 b5 e3 b6 d4 f6 d3 f7 e4 Nh3 g1B Qc2 d1B Kc3 e2 Bg5 e1B+ Kc4 a2 Bd2 e3 Nf2 e2 Nh3 Nf6 Qb3 Ne4 Na3 Qc7 Qb1 Kc6 Be3 d2 Bf2 Ra6 Ng5 Nc3 Bh3 Ba4 Be6 Bb5+ Kb3 Be7 f8B Bd8 Nc4 Qf4 Nf7 d1B+ Kb4 Qc1 Bd6 Rh7 Bh2 Rh8 Qb2 Rg8 Qd2 Bc2 Qh6 Be4 Kb3 Bd2 Qg7 e1N Qh6 B2g5 Qg7 Nd7 b8Q Bgf6 Qf4 Nb8 Qfh6 Qg5 Rd1 a1B Rd4 Bg2 Qf8 Bb7 Qfg7 Ba8 b7 Qf4 Rd5 Bh3 Rd4 Kc7 c6 Nd3 Bfg3 Be3 Bg1 Bc1 B3f2 Ba3 Rh2 Qe3 Rg2 Qc1 Rgg4 Rb6 Rgf4 Na6 Rfe4 Kb8 c7+ Ka7 c8Q Rd6 Qc6 Kb8 Qd5 Kc7 Qdh5 Kc6 Qd1 Ba5 Qc2 Rb8 Qb1 Bad8 Nb6 Nd5 Ra4 Bac3 Nc4 Bce5 Rd4 Nc3 Qf8 Bh8 Qfg7 Bef6
Q3N1b1/b3n3/bNQrnrq1/Rq4QB/2BB3R/1n2Kb2/1p1P1qP1/2k3r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 a4 Kd6 e4 Ke5 d6 Kd4 a5 h5 a6 f5 e5 b5 e6 c5 d7 h3 a7 f3 e7 f4 e8Q h2 Qde1 c4 Qd1 b3 Qf7 b4 Bd3 c3 Qf1 h4 Ra4 b2 Qe8 h3 Be2 c2 Qd1 Qf6 d8Q+ Nd7 Ra1 b3 Qf7 Ba6 Bd3 Qg6 Qe2 Ne7 Qde8 Rd8 a8B Rh6 Qee6 Nc5 Ra5 Rd6 Qef5 Ne6 Na3 b1Q Ke1 f2+ Ke2 f1B+ Kf3 Be2+ Kf2 f3 Qc6 Bd1 Kf1 f2 Qh5 Bf3 Bb5 Qb2 Nc4 Kd3 Qh7 Qd4 Ba3 c1N Ne2 Kc2 Ng3 b2 Qh8 Nb3 Qg5 Kc1 Nb6+ Qc5 Bc4 Qb5 Nf5 Bg7 Qd8 Bd4 Ng7 Be3 Rg1 h1Q Ne8 h2 Bb4 Bc5 Bc3 Bd4 Nc8 Ba7 Bd4 Qf7 Nb6 Rf6 Qdc8 Qg6 Qd8 Bd5 Ke2+ f1B+ Ke3 Bf3 Qb8 Bd1 Bd5+ Bc4 Re1 Qf1 Bf3 h1R Bh5 Qf7 Bb7 Qg7 Qa8 Rg1 Bc8 Qg6 Bd7 Ng7 Be6 Qff5 Bg8 Ne6 Rf1 Qfc5 Rf4 Bf3 Rh4 Nd8 Be6 Bcd5 Bf5 Bg8 Bd3 Ne6 Bc4 Qd5 Rg4 Qdf5 Rh4 Qf4+ Kf2 Qg3+ Ke3 Qf2+
2Q5/2nr1KR1/bN3n2/N1q2b1B/2b1PBR1/3nqPRp/Q2q3b/1Bk2r1r w - - 0 1 illegal: No proof kernel
nRB1QB2/3b2q1/3rb3/3q4/bNpQR1r1/3PN1r1/P1Q2nnK/1q2kBb1 w - - 0 1 illegal: No possible last move
k1K3br/N3Bn2/RqNbBrn1/1Q3rq1/1PB2b2/QR5p/1Q3P1b/3q1n2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 h5 b4 a5 g4 d5 c4 Kd7 b6 Kc6 b7 e5 g5 d3 Ke3 a4 g6 d2 g7 d4+ Ke2 e3 Kd3 a3 Ke4 d3 c5 a2 Nh3 e2 Ba3 e1R+ Qe2 d1N Qe3 d2 Ng1 Nh6 g8Q Nd7 b8Q Ra5 Qe2 Ne3 Rh3 d1Q Qg6+ Bd6 Qf6 Nf8 Qe7 Ng6 Rh2 Be6 Bc1 Bg8 Na3 Nf7 Qb2 Rb5 Bd3 Nf1+ Kf5 e4 Ke6 e3 Bc4 e2 Bg5 Qc1 Bf6 Qg5 Nf3 Qc7 Qbe8+ Kb7 c6+ Ka7 Q8d7 Rf5 Nb5+ Ka8 Rg2 h3 Ne5 h2 Na7 h1Q Rh2 h4 Rh3 Qb6 c7 Qf3 c8B Qb3 Qb5 Qd1 Nec6 Bh2 Rd3 h3 Kd7 Bd6 Qe3 Bh2 Be7 Rf6 Rc1 a1B Qb3 Bd4 Qb2 Bde5 Ra1 Bd6 Ra6 Qa1 Qa2 Rd1 Qad2 e1B Qb2 Bd2 Rda3 Re1 Qeb3 Re2 Q3a2 Qd1 Rb3 Bd2f4 Qaa3 Qb8 Bf8 Re5 Be7 Nh6 Kd8 Rc5 Kd7 Rcf5 Kd8 Qb7 B8e6 Qb6+ Kc8 Nf7
RQNkq1bq/1q5Q/n2B3n/1R2bp2/n1b2r2/3rqP1K/PB2r3/2NQ1B2 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 Qb3 hxg4 Qa4 Ra5 Qd1 Ra8 e4 g5 h4 f5 e6 d5 h5 b5 e7 c5 f3 b4 Kf2 c4 Kg2 g3 h6 g4 e5 b3 h7 c2 Bd2 c1Q Rh3 b2 Bc3 d4 Bb4 c3 Bc4 d3 Qe1 c2 Qe4 d2 Bd6 d1B Ne2 Na6 Nbc3 b1N Bc7 Bg7 Rh5 Qb2 Ng1 c1Q+ Qc2 Be2 Rh1 Be6 Rh6 Qe1 Bd6 Qb7 Nb5 Nc3 Na7 Na4 Qd1 Bd3 Rh5 Nh6 Ne2 Bg8 Nc1 Kd7 Rh2 Qf8 Rh5 Rd8 Rb1 Qe8 Rb6 Qc3 Rb5 Bf6 Nc8 Bf1+ Kg1 g2 Kh2 g3+ Kh3 Be2 Bd3 g1Q Bc4 g2 e6+ Kc6 Bd3 Qe3 Rg5 g1R Rg2 Bf7 Rg8 Rg2 Rf8 Rhg8 h8B Be5 Bf6 R8g4 Bh8 Qed7 e8Q Rf4 e7 Bg8 Qf7 Qe8 Qh7 Kd7 Bc4 Bd3 Bg7 Bb1 Bf1 Bd3 Bf6 Re2 Bh8 Qcc7 Bg7 Qcb8 Bh8 Bdc4 Bf6 Ba1 Bb2 Q8a8 Bba3 Bg7 Bb2 Be5 Ra5 Qbe4 Na7 Qf7 Bc7+ Qed5 Rc5 Qg7 Bb8 Nc7 Ra5 Qh8 e8Q+ Kd6 Qb5 Ke6 Qb7 Na6 Rb5 Rd6 Qbc7 Qdb7 Qd8 Rdd4 Bd6 Rd3 Qdc7 Qac8 Rd8 Qd7 Ra8 Qe8 Qb8 Kf6 Nc8 Ke6 Be7 Kd7 Bd6+ Kd8
4B1nB/1q3RRR/rk6/2p2rNn/1r3rq1/n2B2Pq/1QNK1Pb1/1Qb3b1 w - - 0 1 illegal: No possible last move
7r/k2q2R1/2bBbr2/b1pnQPNQ/1r1nK3/Q3nPNB/B3q3/1R1nq3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Kf3 Kc6 d4 Kb6 a4 e5 g4 h5 g5 h3 g6 b3 d5 h4 g7 h2 d6 b2 d7 h3 Bg2 e4+ Kf4 c3 Bd2 e3 Na3 b1N Kf3 e2 Qc1 e1N+ Kf4 c2 Qd1 c1Q Ra2 Qc4+ Be4 Ng2+ Kf3 Nf6 g8B Nc6 Nb5 Bb4 Bf4 Ra6 Nc3 Ne3 Nce2 Nc3 Bed5 Qe7 d8Q Qf7 Bg3 Nd4+ Kf4 Qd3 Qe8 c5 Nf3 Qd2 Rg1 h1B Ra1 h2 Ba2 Qg7 Bgd5 Bg2 Qe4 h1Q Ke5 Qh5 Bh2 Qe1 a5+ Ka7 Bc6 b5 Bg3 Rb6 a6 Kb8 Bcd5 Rc6 a7+ Kb7 a8Q+ Kb6 Qdd3 Ncd1 Qda3 Ba5 Bdc4 Bd7 Qe8 b4 Ba6 Qh2 Qh5 b3 Bb5 Qf7 Bf4 Bh1 Rg7 b2 Ng5 b1R Ng3 Ka7 Bf1 Rb4 Bh3 Qg2 Rb1 Qf3 Rb2 Qfe2 Rb1 Rd6 Qd5 Bc8 Qe6 Bc6 f3 Nfd5 Ke4 B8d7 Qe7 Rf6 Bd6 Qe8 Qe5 Qd8 Be7 Be6 Bd6+ Qd7
B1R4K/k1bn4/Nr2Q1N1/RP1p1qPr/Q5R1/1n1bQ1q1/1b3Bq1/2nn1r2 w - - 0 1 illegal: No possible last move
1N3QBB/q2n2q1/1R5R/1pnKQ2B/2Q2r2/r3q1Pb/b2N2rP/nrb3k1 w - - 0 1 illegal: No proof kernel
2n4r/5N1q/krRQn1p1/3B2qB/2Rq1BN1/2q2b2/1bP1RbKP/3Q2nr w - - 0 1 illegal: No possible last move, all moves rejected
1R2n2n/nr1rK1b1/1qR2rp1/1Bq3R1/1P2Q1bQ/4PN1N/1k1B1qn1/3b1N2 w - - 0 1 illegal: No possible last move, all moves rejected
1B3QB1/1n3RnQ/rq1P1b1R/pqr1qn2/b6r/Qb5N/2B1P2K/1Nr2k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 g4 Kd6 Kg2 Ke5 b4 Kd4 d3 f5 g5 h5 b6 c5 b5 a5 g6 c3 b7 h3+ Kh2 f3 g7 h4 b6 c4 Qd2 c2 Qd1 f2 Bd2 f4 Ra3 c3 Rb3 f3 Qc1 Na6 b8Q Nf6 g8B Bd7 b7 Bg7 Bf4 Ne8 Qa7+ Qb6 b8Q Ba4 Qac7 Nc5 Qd1 Ra6 Bg2 f1Q Be6 f2 Qc1 Nb7 Qb2 c1Q Rb5 Rh5 Ba2 Qe3 Qd2 c2 Rf5 c1R Rf8 Bf6 Qh7 Ng7 Bd6 Qe8 Qb4+ Ke3 d4 Qd1 d5 Qdd4 Nf3 f1N+ Kg1 Ng3+ Ne1 Qeb5 Be4 h2+ Kg2 Re5 Nd3 N3f5 Nf4 Qb2 Kh3 Kf2 Bc2 Qa1 Bc7 Qb2 d6 Rc5 Qd8 Qe5 Bg8 Bb3 Qa3 Ba4 Rd1 h1B Rf7 Bd5 Rh1 Bdb3 Rh2+ Kf1 Qf8 Ke1 Kg2 h3+ Kh1 Kf1 Bb8 Ra8 Rg2 h2 Rg6 Ra6 Rh6 Ke1 Kg2 h1R Rg6 Qc3 Rh6 Rh4 Nh3 Qd4 Kh1 Kf1 Kh2 Qe5+
1B4Nk/R1N2nq1/qrPn1Qb1/b3RRQ1/br2p1r1/1B3nB1/Pq6/3K3q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 f4 Kf7 g4 Kg7 c4 h5 g5 d5 c5 b5 g6 e5 c6 h3 Kd2 d3 Qf3 h2 Qd1 d4 Nf3 e4 Qe1 h4 Kd1 b3 Rg1 h1N Ng5 d2 Nc3 b4 Nf3 b2 Qg3 b1R Ne2 h3 Qe1 b3 Nc3 b2 Be2 h2 Qf1 Nh6 Rg5 Rg8 f6+ Kh8 f5 Qe7 f7 Ra6 f6 Bf5 Nh4 Ng3 Nd5 h1Q Bc4 Nd7 Nc7 Ne5 Bb3 Rb6 Qg1 Bg7 f8Q Nf3 f7 Qa3 Qe7 Qa6 f8B Nf7 Qf6 Rb4 Bd6 Rb6 Qe6 Bf6 Bf4 Bd8 Qf6+ Rg7 Ne8 Rb4 Bb8 Ba5 Nc7 Rb6 Ng2 Qh7 Ne3 Rb4 Ng4 Qh6 Qe6 Rg8 Qf6+ Qg7 Nh6 Rb6 Rh5 Rb4 Kc2 Rb6 Qe3 Rb4 Qeg5 d3+ Kc3 d1B Bf4 d2 Bd6 Be2 Kc2 Bb5 Bf4 Ba4 Be5 Rh1 Rf1 Rh4 Bf4 Rg4 Kd1 Re8 Rf2 Re5 Rf1 Reb5 Be5 Rb6 Bd6 Ne2 Bg3 Ned4 Rf2 Nb5 Ng8+ Nh6 Rf1 Nd6 Rf2 Bd7 Rf1 Be8 Rf2 Ne5 Rf5 Nf3 Re5 Bf7 Qe3 Be8 Rhf5 Bf7 Qc5 b1Q+ Qc1 Qb2 Qc5 Ne1 Qe3 Be8 Qeg5 Nf3 Ne7 Ng8 Nb5 Nh6 Ke2 Rc4 Qf7 Qf8 g7+ Kh7 Qff6 Rb4 g8R Bg6 Rg7+ Kh8 Rf7+ Qg7 Ng8 Rd4 Rb7 Nhf7 Ra7 Rc4 Nc7 Rcb4+ Kf2 d1Q+ Ke3 Nd2 Kf2 Qf3+ Ke1 Qg2 Kd1 Nf3 Qf4 Qh2 Q4g5 Qh1+
3r2QR/1q1b3n/1P2R1n1/2R2K2/pkB2Nqb/1qnP1rb1/1BrQ2q1/6NN w - - 0 1 illegal: No possible last move, all moves rejected
3K1n1Q/k2rn1qP/q1RNbQ1Q/3Nn3/R4R1b/1P3B1p/1rrB1q2/3b1n2 w - - 0 1 illegal: No proof kernel
qrBB1b1Q/3qQ1P1/3bn3/1k1r4/n1Np2RB/q2P1RnR/4n1K1/b1r4N w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c4 gxh4 Qa4 b5 Qa3 Ba6 Qf3 b3 Qg4 b4 Qd1 Bb5 cxb5 Bg7 Ba3 Bh6 Bc1 Bf8 f4 e5 Kf2 h5 a4 c5 g4 d5 b6 Kd7 a5 Kc6 a6 h3 a7 c4 g5 d4 f5 b2 b7 e3+ Kf3 h2 g6 c3 d3 c2 g7 e2 f6 e1B f7 h4 Be3 c1N Bh3 b3 Bf5 h3 Bh7 e4+ Kg4 Bc3 Kg3 Kb5 Qg4 Ne7 Bg6 Nd5 Kf2 Nc7 Nd2 b1R Qf4 b2 Ra6 Qd7 Qf3 Ne6 Qf4 Rh5 Nc4 Rd5 Qe5 Ne2 Bg5 Rc1 Bd8 b1Q Bf5 e3+ Kf3 Bd6 f8R Qa1 Rc6 Na6 b8B Qa3 Qf6 Bc5 Bg3 Ba1 Bh4 Rb8 a8Q Bd6 Qe7 Nac5 Rf6 Na4 Rg6 Ng3 Rg4 e2 Rc8 e1B Ne2 Beb4 Rc6 Nh5 Ng3 Nhf4 Rf1 Ne2 Nh1 N2f4 Kg3 Bbc5 Rf3 Ne2+ Kf2 Bb4 Ng3 h1Q Rc8 Qd1 Nh1 h2 Kg2 Qdb3 Qf6 Bf8 Qe7 Qba2 Rc6 Ng5 Re6 Bd6 Ree3 Ne6 Rh3 Qc5 Ref3 Qcc6 Qa7 Qa3 Qe8 Qa8 Qh5 Qc8 Qe7 Qd7 Qh8 Nc7 Nf2 h1N Be6 Nhg3 Nh1 Qdc6 Bd7 Ne6 Bc8 Qd7
4R1nN/1qnk2P1/r2rNB2/4QB2/qP2N3/3R3p/1K1nq1QR/r1qbbb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 e4 d5 c4 h5 Kc2 f5 g4 f3 c5 f2 e5 f4 c6 h3 b3 h2 b6 h4 b7 f3 c7 h3 g5 d3+ Kb2 d2 e6 a4 e7 a3+ Ka2 d4 g6 d3 g7 Qd5 Qe1 d1Q Bg5 d2 Qe5 Qe2 Nc3 Bg4 c8N Kd7 e8R Rh6 Bf6 Na6 b8Q Nc7 Rd1 Ra6 Qa8 Qb7 Ne4 Bb4 Ncd6 Ba5 Bg2 f1B Nf7 f2 Nf3 Rd6 Ka1 a2 Kb2 a1R N3g5 Bf3 Nh8 Ra6 Be7 Rhd6 Bf6 Bg4 Ne6 Bh5 Rc1 d1Q+ Rc2 Be1 b4 Bg4 Rd2 Qa4 Bf3 Qd3 Bg2 Bd1 Bf3 Qe2 Bg4 Qab5 Bf5 Qa4 Rg1 h1Q Rg3 Bg2 Rc2 f1N Rc3 Nd2 Rd3 Nb3 Rcd2 Bf1 Rc2 Qg4 Rh2 Nd2 Qa7 Qe2 Qf2 Qg1 Qf3 Qc5 Qg2 Qc1#
KqnBb3/Q2R1NP1/B1bnNQp1/2b1n3/r6B/1PkrR1q1/7q/R5rn w - - 0 1 illegal: No possible last move
q3k2n/q5Pb/NP1bB1bQ/B1nQR1r1/2q3B1/r4QN1/3rK1p1/R1r1n3 w - - 0 1 illegal: No proof kernel
1q3n1R/2bpRN2/1q4bP/1kNB2br/1qnQ2r1/RKQ1r2n/4QBPn/8 w - - 0 1 illegal: No proof kernel
1R1n4/Kr1p1r2/b1RP2BP/1B1q1N1Q/2N1n2r/1k1b1q2/n1b3qB/5RbQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 Ke7 h4 Kd6 d4 Kd5 c3 Kc4 b6 f5 d5 a5 b7 g5 h5 b3 Be3 a4 Ra3 f3 Ra1 a3 Ra2 f4 Qd2 b2 Qd3+ Kb3 Bc5 g3+ Ke1 f2+ Kd2 g4 e4 f3 Ke3 g2 Kd4 g3 e5 Qa5 e6 Ra6 e7 Rb6 e8B Nf6 Qe2 Ne4 c4 Rhh6 Ra1 a2 Na3 b1B Bg6 Bc2 Rc1 a1N Bd6 Qa8 c5 Nc6+ Ke3 Rh8 b8R Nd8 Kd4 Ba6 c6 Rh7 h6 Rf7 c7 Be7 Nh3 g1Q c8Q g2 Bh2 Bg5 d6 Be3+ Ke5 Qb7 Nf4 Qc6 Qd1 Qc4 Bd3 f1Q Nd5 f2 Qc5 Qe2 Qa5 f1B Ne7 Qf3 Nf5 Qc6 Bb5 Bd3 Qde1 Qgf1 Qh4 g1R Nc4 Q1g2 Qh3 Re1 Rf1 Bg1 Qh5 Re2 Qe1 Rf2 Ng7 Rf4 Kd4 Rh4 Nf5 Bb1 Qd1+ Nc2+ Ke5 Qa8 Qe1 Nb4 Kd4 Bbc2 Qd1 Nc3+ Kc5 Nba2 Bc6 Rb4 Bb5 Ne4+ Kb6 Qc6+ Ka7 Qd5 Bc6 Rb6 Bb5 Qfh3 Qdg4 Qgf3 Qg2 Qhg4 Qh1 Qfg2 Ng7 Rf7 Nf5 Q4f3 Nce3 Bd1 Rc6 B1c2 Nc4 Rb7+
1qR1RnQ1/r1Prb1Qn/k2PB1pN/3N4/1b1R1Bq1/4n2B/3rrK2/2q2b2 w - - 0 1 illegal: No possible last move, all moves rejected
2R1B1R1/np5K/N1QrNP1B/2rrq3/1Q1q2qb/nb5k/R1NP2rb/6n1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Ke3 Kg5 a4 h5 g4 c5 f3 c4 a5 c3 a6 c2 d6 h3 a7 Kh4 f4 h2 d7 b3 f5 b2 g5 Nh6 f6 Rg8 g6 Bd6 g7 Ng4+ Ke2 e3 Kf3 e2 Ke4 e1B Kf5 e4 Kg6 e3 Ra2 e2 Nc3 b1N Nh3 Ne5+ Kh7 Nf3 Ne4 Nc6 Bb2 c1R Qc2 Na3 Rg1 h1Q Qb1 Qg2 Bd4 Rb8 a8R Na7 Nef2 Rc5 Nd3 Qg3 Rg2 Ng1 Ng5 Bf2 Qb6 e1Q Nb4 Kg4 Be3 h4 Ba6 h3 Nf3 h2 Bb5 h1R+ Bh6 Rhh5 Nd4 Kh3 Ndc2 Qf3 Rg4 Bh2 Na6 Bh4 Qa5 Qee3 Qb4 Qde7 d8N Be6 Ba4 Bb3 Be8 Qd4 Rg2 Qe1 Ne6 Rd8 Rc8 Rd6 Rg4 Rf8 g8Q Rhe5 Qg7 Rg8 Qd7 Red5 Qc6 Qee5 Rf4 Rg2 Rg4 Qd1 Rg8 Q1g4
6b1/p1P2n1Q/1Rq1N2Q/1r3Q1q/1P2n2K/k1r1rqnN/4R1BB/2N1bb1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Kd6 g4 Kc5 e4 Kb4 b3 d5 b6 h5 b7 f5 e5 f3 e6 d3 e7 d4 e8N f4 g5 h3 c5 d2 c6 h2 c7 h4 g6 h3 g7 d3 Ra3 Nh6 g8Q Nf7 Qc2 d1R Qg6 d2 Qcd3 Qf6 Qg3 Re1 Qg5 d1Q Qg3 Qg6 Qa6 Be6 Nf6 Nd7 Qg4 Nc5 Ra2 Rb8 Nh7 Re3 Re2 Qd6 Qh5 Qc6 Bg2 Rc3 Nd2 Ne4+ Ke1 Bd6 Qf5 Rhe8 Ng5 f2+ Kf1 Bc4 Ne6 Be7 Bb2 Bh4 Ba1 Bd5 Qb6+ Ka3 b4 Ba2 Nb3 Re7 Nc1 Ree8 Re1 Bb3 Ke2 f1N Qe3 Bc4+ Kf3 Nfg3 Re2 Ba2 Ng7 Re5 Ne6 Re8 b8Q Rb5 Qd8 Bd5 Qdg5 Ba2 Kg4 f3 Qd2 f2 Qd7 f1B Qe7 Nh5 Qd7 Be1 Qd3 Nhg3 Kh4 Bd5 Qh6 Re7 Nf3 Re8 Nfg5 Ba2 Rg1 h1N Qb1 h2 Nh3 Rd8 Qc2 Rdd3 Qb1 Re3 Qd3 Rb3 Be5 Rc3 Qd7 Nfd6 Qdh7 Bb3 Nf8 Bg8 Ne6 Nf7 Qf3 Nh5+ Bg3 Qd5 Nf8 Qge6 Qff5 Qc4 Bf3 Nhf2 Q7g6 h1Q Bh2 Qc5 Rg4 Nhg3 Qgh7 Qg2 Rg5 Nfh1 Rg6 Qf2 Bg2 Qf3 Rf6 Qcb6 Rg6 Qd7 Rd6 Qe6 Rc6 Qg6 Ne6 Qc5 Rb6 Qd6 Rf2 Qc6 Re2 Qgh5+
1KbnR2B/3qR3/5Nn1/1bp1r2B/3Pn2Q/bN2nP2/QQ5n/2Nk1rrn w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 b4 h5 g4 e5+ Kc3 Kd5 d4 e3 b6 Ke4 b5 e2 b7 e1R b6 h3 g5 h2 g6 h4 g7 h3 Ra3 a4 Ra2 a3 Qh5 Qd7 Bf4 Nf6 g8N Nc6 b8Q Ra5 b7 Nd8 Ra1 a2 Qg5 Ba3 Ne2 Kf3 Ng3 e4 Qe5 e3 Bg5 e2 Qe7 Re5 Qa7 c5 b8Q Rh6 Qh7 Rg6 Qb2 Rg7 Rg1 h1N Qh4 h2 Bh6 Rgg5 Bg7 Rgf5 Bh8 Ne4+ Kc2 c3 Kd3 c2 Kc4 c1N Nf6 Rd1 Rg2 e1N Ne2 Ncd3 Rg7 Rg5 Nc1 Rg1 Re7 Nf4 Bh3 Ng6 Bg4+ Kg2 Be2 Nf3 Nd2 Rdf1 Rb1 a1N Ndb3 Nc2 Bd1 Qe6+ Kb5 Qd7+ Kb6 Ne3 Be2 Nhg3 Qa8 h1B Bd1 Nh2 Bh5 Neg4 Qa5 Kf3 Qad2 Bg2 Qa2 Nh1 Qdb2 Bh3 Re8 Ba6 Re7 Bb5 Re8 Qc6+ Ka7 Qd7+ Kb8 Nd2 Nd3 Ke2 f3 Ne3 Rc1 Bf5 Rc2 Be6 Ndc1+ Kd1 Re7 Ne4 Rg2 Nf8 Rg8 Ng6 Rge8 Bd5 Nd2 Bb7 Ndb3 Bc8
1b4kr/q3R3/bBnbp3/1B2NnB1/1b1b1NnP/r1N2K1Q/2R1r2P/4Qb2 w - - 0 1 legal: proof: e4 d5 b4 h5 c4 dxc4 g3 f5 b5 fxe4 b6 h4 gxh4 axb6 Qa4+ b5 Qd1 b4 Ke2 Kf7 d4 g5 f4 b5 a4 c5 a5 g4 a6 b3 a7 b2 d5 g3 d6 e3 d7 b4 f5 e6 f6 g2 Qc2 c3 Ra5 c4 Rc5 b3 Bd2 Bd6 Rb5 Qe7 d8Q Nh6 Qe4 c2 Qd7 c1B Ba5 c3 Nh3 g1B Kf3 e2 Qa4 e1B Ng5+ Kg8 Nf7 c2 Qb4 Ba6 Rb7 Bcf4 Bb6 c1N Bb5 Ne2 Nc3 b1B Ne5 b2 Qb3 Bd3 f7+ Kg7 f8B+ Kg8 Qd1 Ng4 Bh6 b1R Bg5 Bd4 Rc7 Bed2 Qe1 Rb2 Rf1 Ng3 Rf2 Nc6 Re2 Rd8 a8N Nf5 Qc8 Qg7 Re7 Qh7 Rf2 Bf1 Nc7 Rf8 Qd7 Ra8 N7d5 Bg3 Nf4 Qg7 Ne4 B2b4 Nc3 Re2 Qa7 Bb7 Qa2 Ra3 Qc2 Ba6 Qd3 Re4 Rc2 Re2 Ra7 Qb7 Qe3 Qa8 Re7 Bb8 Q3f2 Qa7 Qg2 Bgf2 Qg3 Bdc5 Qg2 Bcd6 Qh3 Bd4
1b1bb1b1/3Qn1bQ/Q2pB2R/3nPP1N/q1rB2BR/n7/rK6/N2rk2b w - - 0 1 illegal: No possible last move
B1R5/1N1Q3B/2P3b1/1b4Pn/2rr1kb1/qQb2bNn/Kn2pb2/B1R1R2r w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 c4 Ke6 Kc2 Kf5 Kb2 b5 a4 h5 f4 d5 a5 e5 a6 e3 g6 d3 c5 e2 a7 e1B c6 d2 g7 h4 g3 b3 Rh2 b4 Ra2 h3 Bb5 d4 Nc3 d3 Bc4 e4 Ka1 b2+ Kb1 e3 Ra1 e2 Ra2 Nd7 Bb5 Nb6 Nd5 Qd6 Ra1 Nc4 Rf2 h2 Rf1 h1B Ka2 Bf2 Nf3 Nf6 g8Q Nh5 Ng5 Bg7 Nc3 Bf3 Na4 Bc3 Re1 b1R Ba3 Rc1 Nc5 Nb2 Nb7 Qe7 Qdb3 d1B Qd8 d2 Ne4 Bd7 Qe8 Rd8 a8B Bc2 Bd3 d1N Rb1 Be6 Ra1 Rd4 Qd7 Kg4 f5 Bc4 Qc7 Bb5 f6 Kf5 f7 Qd6 g4+ Kf4 Nec5 Rh7 Bg6 Bf5 g5 B5g4 Qd7 Rh6 Ne4 Rc2 Bh7 Qe7 Qc4 b3+ Kb1 Qb4 Ng3 Qa4 Be7 Qa3 f8R+ Nf6 Bb4 Bd2 Ra2 Nd3 Rf1 b2 Qdd5 Bfe3 Bc3 N3f2 Qf7 Rh1 Rc8 Nh3 Re1 Bf2 Qd7 Nh5 Qa4 Ke3 Qb3 Kf4 Bb4 Rcc4 Ra1 Qa7 Ba5 Qa6 Ka2 b1B+ Ka3 Bd3 Ka2 Bg6 Rb1 Qa7 Rc1 Qc5 Bb4 Qe7 Ba3 Bc3 Bb2 Qb4 Ba1 Nb2 Rb8 Qd6 Rc8 Qa3+
1b1Q2B1/nrn4n/1P1Br2N/3Q4/Qn2nR1b/RK1bN1qB/2P3pr/1n5k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Ke6 e4 Ke5 h4 a5 h5 g5 h6 d5 h7 f5 b6 a4 b7 g3 b5 f3 b6 Kf4 e5 g2 e6 Kg3 e7 g4 e8B f4 Rh2 d3 Kc3 d4+ Kc4 f2 Nd2 a3 Ra2 f3 Rh4 Qg5 Be2 f1N Bf7 f2 Nb1 d2 Bd5 d3 Qe1 d1N Nd2 Nfe3+ Kb3 Na6 b8Q+ Bd6 Rh6 Ra7 Ndf3 d2 Rh1 Nc3 Qd1 f1N Ne1 Nf6 Bec4 Bf5 Bc6 Nce4 B4d5 Rb7 Qa7 Bb8 Nh3 g1B Ra1 a2 Bg8 Bf2 Nf3 Kg2 Qe2 d1N Qe1 g3 Bd7 Ndc3 Qd1 Ned5 Ne5 Nb5 Nc4 Nab4 Qa4 Na7 Bf4 Nc7 Qd5 Qg7 Ng5 Nd2+ Ka3 Bg6 Bd6 Nb1+ Kb3 Be1 Rh4 Bf5 Rg4 Kh1 Ne3 g2 Bde6 Bh4 Rf4 Qg6 Nf7 Qg3 Nh6 Bg6 Bgf7 Re8 h8Q Nh7 Bh3 Re6 Qae8 Bh5 Qhg8 Be2 Qa4 Bd3 Qd8 Kg1 Nd1 Nbc3 Rb1 a1R Ne3+ Kh2 Rb2 Rh1 Bg8 Nb1 Ra2 Kg1 Ra1 Rh2 Ra3 Kh1
N3Q1Rn/1qB1nb1P/2rB3k/1n5r/Knr3b1/3p1NPn/2B1Qbn1/2RR4 w - - 0 1 illegal: No proof kernel
K1Rr1b2/2Rb2P1/rpq1b2r/b1P1kn2/4N1Q1/4QB1B/4bnn1/2bQB1N1 w - - 0 1 illegal: No possible last move
2NBKnQ1/4P1r1/4RRQp/n1n5/bn1rbBRP/1q4b1/1k2n3/Nr4nQ w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 f5 b5 axb5 e4 e3 g6 Bc4 gxf5 Be2 f4 Bf3 exf3 Kf2 Ke7 g4 Kf6 h4 Ke5 b4 a5 c4 f5 e4 d5 c5 d3 g5 Kd4 c6 h6 g6 d2 b6 a4 e5 a3 b5 a2 g7 Ra4 b7 Nf6 g8R Na6 b8B Bd6 e6 Rh7 b6 Nc5 b7 Nfd7 c7 Nf8 e7 Rg7 Qf1 d1R Nd2 Kc3 Nc4 d4 Nh3 d3 Qe2 d2 Na3 Rd4 Rb1 a1N Rg1 Nab3 Qe1 Na5 Rf1 Be5 Qe4 Qd5 Ng5 Qb3 Nf7 Bd7 c8Q Bc6 Qe1 Be4 Qe6 Bd6 Qg6 Bc7 Kg1 f2+ Kh2 f3+ Kh3 f4 Kg4 Be5 Kh5 Bd6 Rg1 f1N Bc7 f2 b8Q f3 Nc2 Bg3 Bd8 Nh2 Na1 f1N Nd6 f2 Nc8 Ne3 Rf1 Nf3 Qa8 Ng1 Qd5 Qa2 Rb6 Nc2 Re6 Nb4 Qa8 Qb3 Qb8 Bb1 Qee4 Re1 Qh1 Be4 Qa8 d1N Bf4 Kb2 Qg4 Ncd7 Qc6 Rh7 Qc7 Bg2 Qc2+ Ka3 Bg5 Nc5 Qcf5 Nc3 Rgg6 Nce2 Rgf6 Nfd7 Kg6 Rb1 Qd3 Kb2 Re1 Nc3 R1e4 f1B Bd2 Bf3 Qg5 B3g2 Rg4 Ba8 Qdf5 Bb5 Bf4 Ba4 Qfe4 Nce2 Qd3 Rh8 Kf7 Rh7+ Ke8 B8c6 Qdf5 Be4 Qg8 Rg7 Qg6 Nf8+
3R4/p2Rn1B1/2nr1K1P/n4Q2/kqb1N1Q1/3rb1B1/Pb1r2Qb/1R1bN2b w - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 bxc5 gxf4 g5 h6 Be2 h5 Bg4 hxg4 Kf2 Kd7 h4 Kc6 c4 b5 d4 f5 h5 e5 h6 g3+ Kg2 e3 Kf3 g2 g6 e2 g7 e1B Qd2 b4 Na3 e4+ Ke2 b3 Bb2 f3+ Ke3 f2 Kf4 f1N Ke5 f4 Rd1 f3 Nb1 e3 Bc3 b2 Qc2 f2 Bd2 e2 Rh2 Qh4 Rc1 Ne3 Qf5 f1B Nc3 b1B Ne4 Bf2 Nf3 e1R Bc3 Bc2 Rb1 Rd1 Ne1 Ne7 g8Q g1B Qg2 Bb7 Ke6 Qg4 Kf6 Rd2 Rh5 Bd1 d5+ Kc7 c6 Bh2 c5 Nc4 Rh3 Na5 Rd3 Be3 Rd4 Bc4 d6+ Kd8 d7 Kc7 Rd6 Rh7 Be5 Rd4 Bg3 Qf4 Rd5 Bg7+ Ke6 Rd3 Qg4 Bb2 d8B+ Kc8 c7 Nbc6 Qf5 Rb8 Qg4 Ba8 Qf5 Kb7 c8R Ka6 Rc7 Kb5 Rd7 Rd4 Kf6 Ka4 Bc7 Rb3 Be5 Rh8 Rd8 Rd2 R5d7 Rbd3 Bc3 Rg8 Bd4 Rg4 Be5 Nb4 c6 Rh4 c7 Nbc6 c8Q Bb7 Bc3 Qb8 Ng5 Rhd4 Ne4 Ba8 Qc7 Qb3 Qcf4 Qb4 Q4g4 Ne5 Ng5 Baf3 Ne4 Ne5c6 Qf2 Bh1 Qg2 Ba3 Ba1 Bb2 Kg7 Rd6+ Be5 Bc1 Bg3 R6d5 Bae5 R5d4 Bf6 Bb2 Bfe5 Bb5 Kf7 Ba6 Bg7 Bc4+ Kf6 Rd6#
R3br2/nbqbQ1b1/QnN4n/4n1BQ/1B3b1N/1PP2Rp1/K3Br2/4n1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 h4 Ke6 e4 Ke5 h5 g5 c3 d5 Kc2 a5 Kb3 f5 h6 f3 b6 a4+ Ka2 f4 b3 a3 b7 f2 h7 d3 Rh6 d4 Bb2 f3 Re6+ Kf4 e5 Kg3 Rh6 d2 e6 d3 e7 Qc7 e8Q Nc6 b8B Bg7 Qee1 Na7 Rf6 Kh2 Qe4 g3 Qd5 g4 Qe4 g2 Rf5 g3 Rf4 Bb7 Qde1 d1N Rf6 d2 Qf4 Nh6 Qfe3 Rf8 Bc4 f1N h8Q f2 Qe6 Nfe3 Qd6 f1B Rf3 Ng4 Bc1 Ne5 Bb5 Nb2 Qe4 d1B Qe2 Na4 Nd2 Nb6 Qe1 Bc2 Ne2 g1B Bc4 Bg6 Nd4 Be3 Nc6 Bh3 Be2 Bd7 Qd3 Bf4 Qa6 Bge8 Qh7 Qc8 Bd6 Qc7 Bb4 Rd8 Rf1 Kg2 Nf3 Rb8 Nh4+ Kh2 Kb1 a2+ Kb2 Rc8 Rf3 Rf7 Qd1 Rf6 Qd6 Kg1 Qe7 Rf7 Qg6 Rb8 Qh5 Rf6 Rb1 a1N Ka2 Nc2 Ra1 Ne1 Rb1 Nac8 Ka3 Bg6 Rf2 Bd2 Qc4 Nhf7 Ra1 Nh6 Kb2 Be3 Ra8 Na7 Qa6 Rbf8 Ka2 Bge8 Bd2 Rg6 Rf7 Rf6 Bc1 Rf2 Rf3 Bc5 Bf4 Be3 Bg5 Bf4
1r2NbbN/2r3R1/2b4R/BrPnr3/3K2Q1/n3R1p1/bPqbQ3/Q2r1Bk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 c4 Kf5 h4 a5 c5 g5 h5 d5 b6 a4 h6 a3 h7 a2 b7 f3 e3 g3 e4+ Kg4 e5 f5 e6 g2 e7 Kg3 e8Q Kf2 Bf4 g4 Rh5 g3 Nd2 Nc6 b8Q Be6 Rh4 Nf6 Nb3 Na5 Qh5 Bg8 Ne2 g1B Qf7 Ra7 Nbc1 Rc7 Qb7 Nc4 Rh6 Na3 Be5 f4 Rb1 a1R Kd2 d3 Kc3 d4+ Kd2 Nd5 Qf5 Qd7 Qb4 Qa4 Qc2 Qb3 Kd1 d2 Qa5 Ra2 Nc3 Qa4 Bc4 Kg2 Bg7 f2 Ke2 f1R Kd3 f3 Nb5 f2 Ne2 d1B Nd6 Re1 Qg4 f1B Ne8 Be3 Bf6 Ra1 Bd8 Bd2 Rg6 Kf2 Rg7 Bg2 Nf4 Kg1 Ng6 Re5 Rc1 Bf3 Bb5 Ra2 Qc4 Ra1 Rc3 Bb3 Qa8 Ba2 Qa7 Rb7 Ba5 Rb6 Ba6 Rb5 Rb3 Rf1 Qc2 Rf2 Qd1+ Rf1 Qe2 Bh1 Rc3 Rf7 Qa8 Rc7 Rb3 Be6 Rc3 Rg8 h8R Qb3 Rh6 Rh8 Bc8 Bg8 Bf5 Bg2 Be4 Bh1 Bg2 Qa4 Bf1 Qd1 Qee4 Qc2+ Ke2 Be3+ Ke1 d3 Qd8 Nf4 Nd6 Bgb3 Qdg5 Bc1 Qee2 Bc6 Qd8 Rg8 Nh8 Be7 Qdd7 Rd8 Ne8 Rdb8 Qd8 Bg8 Qd5 Bb1 Qa2 Bf8 Qa1 Nd5 Rb3 Ba2 Rc3 Qa4 Rb3 d2+ Kd1 Nc4 Kc2 Na3+ Kd3 d1R+ Qd2 Rde1 Qde2 Bd2 Rc3 Qb3 Kd4 Rd1 Re3 Qc2
rrb1Rq2/2b1N3/3B2p1/PRrRKN1r/1b2NP1Q/k7/2Bn3r/b2nQ1b1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 e5 f4 b5 a4 g6 d4 b3 h4 g3 a5 g2 h5 c4 h6 b4 h7 c3 Ba3 b2 Bd3 c2 Nh3 g1B+ Nf2 c1R Nd2 b1R Qe1 Nh6 Rh3 Nc6 Nf3 Nf5+ Kd2 e3+ Ke2 e4 Nd2 Rb2 Rg3 Rc5 Rd1 b3 Nh1 Ne5 Bc2 Nc4 Rg5 Be7 Ng3 Qf8 Rh5 Bd8 Bb4 Bc7 Rb1 Kd7 d6 Kc6 d7 Kb5 d8Q Ka4 d5 Ra2 d6 Rb2 Ndf1 Nd2 d7 Ra2 Qh4 Rb2 Bc3 Ka3 d8N Ra2 Nc6 b2 Rd1 b1R Be5 Rbb8 Ne7 Rab2 Rb1 Ra2 Rb5 Rb2 Kd1 e2+ Kc1 e3 Ne4 Ra2 Nfg3 Rb2 Bd6 Ra2 Qf2 e1B Kd1 Rb2 Ke2 Ra2 Kd3 e2 Rg5 Ne3 Rd5 Nd1 Ngf5 Rb2 Qfg3 Bef2 Qe3 e1B Qe2 Bd4 Qf1 Rg8 h8R Ra2 Qe2 Ba1 Qef2 Rb2 Kd4 Rg7 Rg8 Rh7 Ke5 Rh5 Qf1 Qf7 Re8 Qf8 Bb3 Nb1 Ba4 Bb4 Qfe1 Rf2+ Nc3 Nd2 Bc2 Nb2 Ne4 Rg2 Qg5 Rgh2 Qgh4 Nd1+
1r4K1/1b3P1n/1b1Q1P2/1N4k1/b1QqnN2/2BB1nNn/R2bpn2/Rr1B2b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 b5 h4 g5 a4 b3 f4 g3 c4 g4 h5 b2 h6 d3 c5 b4 a5 b3 a6 e4 a7 g2 c6 g3 h7 e3 c7 e2 Rh3 d2 Ra2 Na6 Rh1 Bb7+ Kc4 Bh6 c8B Nc5 Nh3 g1B Nc3 b1N Bb2 Ne4 Bg2 Rb8 a8N Bb6 Nc7 d6 Qc1 d1N Be6 Ndf2 N7b5 Qd7 Bf3 g2 Qc2 Ng5 Be4 g1B Bd3 Qg7 Ba1 b2 Bd7 Nf3 Bc6 Qd7 Kd5 Nbd2 Qb3 b1B Qc4 Bc2 Ne4+ Kf7 f6 Kg6 f7 Ba4 Ng3+ Nde4 Bc3 Qd8 Ke6 d5 Bd7 d4 Be8 Bg5 f5+ Kh6 Nf4+ Nh3 Bd7 Ngf6 Bc6 Rg8 h8Q+ Nh7 f6 Qd5+ Ke7 Rgf8 Bc2 d3 Bd1 d2 Qg8 Rfc8 Qd8 Qd4 Qd6 Rd8 Bd7 Rg8 Bf5 Rgf8 Bb3 d1N Bg6 Ndf2 Bd1 Ned2 Bd3 Nde4 Ng2 Bd2 Nf4 Rfd8 Bb3 Bh2 Rha1 Kg5 Bd1 Bg1 Ke6 Kh4 Kf5 Re8 Kg6 Rec8 Kg7 Kg5 Qce6 Rc4 Qc8 Rb4 Qc4 Nf8 Kh8 Rb1 Kg8 Nh7+
1NKB1nn1/2rQb3/3q3b/B4r1R/R2rbp2/1kP1rN2/r2P1n2/1N1n2QB w - - 0 1 illegal: No proof kernel
n7/Br3rb1/1QqNq1Rr/2RQr3/2bp4/1b1rN3/RQ1PKPrn/5B1k w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 g4 Kf7 c4 Kg6 b6 Kg5 c5 Kf4 g5 d5 b7 a5 c6 e5 g6 h5 g7 h3 c7 a4 Be2 h4 Ra3 h2 Bb2 d4 Nc3 h3 Bd3 b3 Nge2+ Kf3 Ba1 Kg2 Nd5 e3 Qb1 b2 Nc1 e4 Nb3 Ra7 Na5 Nd7 b8Q Nh6 g8R+ Ng4 Nf6 Qe7 Qa8 Rh6 Rb3 a3 Nd5 a2 Rg6 Nb6 Nc4 Qe6 Ra3 Bg7 Qd1 b1R Rc3 Ba6 c8Q Rf7 Na5 Bc4 Qaa6 Na8 Nc6 Rbb7 Rf1 h1Q Ke2 h2 Bb2 a1R Nd8 Ra3 Qa1 Rab3 Rb1 Qc1 Qb8 h1B Qe5 Ra3 Qf5 Bb3 Rc7 Qcc6 Qb6 Kh2 Bc3 Bg2 Qb2 Bf1+ Ke1 Kg1 Ba5 Kh1 Ra1 Nh2 Ra2 Be2 Ba6 Bec4 Qh5 Bd1 Bb4 Rd3 Bc5 Bdb3 Qg5 Rf3 Rc8 Rg3 Nf7 Rg2 Nd6 Rf7 Nb4 Rb7 Nc2 Rf7 Kd1 e2+ Kc1 Rb7 Qd5 Rf7 Ne3 e1R+ Nd1 Re2 Ne3 Rb7 Qa5 Rf7 Ba7 Rb7 Qb6 Re1+ Nd1 e3 Rc7 e2 Rc8 Qce8 Rc5 Rg1 Bb5 e1R Ba6 Re5 Bb5 Rge1 Ba6 R1e4 Ne3 Rf4 Bb5 Ba4 Ba6 Qc6 Bb5 Rb3 Kd1 Rd3+ Ke2 Bab3 Qc7 Rf7 Qb6 Rc3+ Ke1 Be2 Bc4 Bed1 Bf1 Bc4 Qc2 Rd3 Qcb2 Bc2 Ke2 B2b3
3b2Rr/1k3r2/4q2B/4R3/1P1p2qb/RbQ1qP1B/Q1bnb2n/1NK1QNb1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 d5 b4 Kd7 c4 Kc7 b6+ Kb7 g5 e5 c5 h5 g6 h3 g7 a4 Kc2 h4 Bf4 d3+ Kb2 e3 Bh6 e4 Qd2 e2 Ra2 e1Q Ra3 h2 Qf4 h3 Bg5 d2 Rb3 d1B Ra3 e3 Bf6 e2 Rc3 a3+ Kc1 a2 Qe3 a1B Be7 Nh6 g8Q Nd7 Qg6 Ng4 Qh7 Ndf6 Nf3 Qd6 Qe6 Ne4 Na3 Nd2 Nb5 Ra7 Bg5+ Be7 Qc2 Bd8 Ra3 Bd4 Bh6 Qe7 Qee4 Bf5 Nc3 Qe6 Nb1 Bh7 Rg1 h1B Nh2 Bf3 Qa2 Bf5 Qe3 Bfc2 Bg2 Bb3 Nf1 h2 Bh3 h1Q Rg2 Be4 f3 Nh2 Rg5 Qg1 Re5 Bec2 Qe4 Qgg4 c6+ Kc8 c7 Kb7 c8R Bg1 Qe3 d4 Qc3 Qf2 Ra8 e1B Rc8 Bg5 Rf8 Bd8 Rg8 Kb8 b7 Be2 Qcb2 Kc7 b8Q+ Kc6 Qba1 Rf7 Qc8+ Kb6 Qac3 Qe3 Qa8 Beh4 Qe4 Qeg5 Qee3 Kb7 Qf2 Q5f4 Qe1 Qe3
k4n2/2Q3BB/2b2bQ1/1R1PNK1r/1Pp1n1r1/1n1b4/NnRr1R1Q/3nb1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 g4 Kc7 d4 Kb7 d5 a5 e3 f5+ Ke5 f3 b3 f4 e4 a4 b6 a3 g5 a2 g6 h3 g7 h4 Qe2 f2 Qd2 c3 Bb2 f3 Be2 f1N Bc4 f2 Bb5 c2 Qd3 c1N Qe2 c4 Rh2 Bb4 Qh5 Qg5+ Kd4 Be1 b4 Nf6 g8R Ne3 e5 f1B e6 Nbd7 e7 Nf8 e8Q Nd1 Rf2 h2 Qeg6 h1N Nf3 h3 Rg7+ Bd7 Qhh7 h2 Ba4 Bd3 Ne5 Qg1 Nc3 Ne4 Bc2 Rg8 Bb1 Kb8 b7 Bc6 Bc2 Ra4 Rb1 a1B Na2 Ra6 Bc3 Ka7 Rb2 Ra3 Bb1 Kb8 Re2 Nb2 Rc2 Nb3+ Ke3 Ka7 Kf4 Ra4 Kf5 Ra6 Rfd2 Nhf2 Rd7 h1R Qh2 Nfd1 Rf2 Rh8 Rd8 Rh4 Rb8 Ra3 Re8 Rg4 b8Q+ Ka6 Qbd6 Ka7 Rb8 Ra4 Rb5 Ka8 Bd2 Ra7 Bh6 Rg7 Qc7 Rh7 Qf4 Rh2 Bg7 Rhg2 Qh2 Rh6 Rf4 Rd2 Rf2 Rh5+ Qg5 Nc1 Nf3 Nec3+ Kf6 Nba4 Rb2 Bf1 Bh7 Ne4+ Kf5 Nb3 Rc2 Bf6 Ne5 Nab2 Nc3 Bd3 Na2 Rh6 Qg6 Rh5+
n1brn1q1/1b1N2N1/1b1Q2RB/k1qPB1P1/B1q5/b1R1p3/5bb1/r2QR2K w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 f4 e5 Kf2 a5 Kg2 h5 d4 c5 b4 Kc7 g5 Kb6 f5 h3+ Kh2 h4 f6 e3 f7 c3 Be2 c4 Qc2 e4 Ra2 a4 Bb2 a3 Ra1 a2 Qa4 c2 Bf3 c1Q Bd1 c3 Nf3 e2 Nbd2 e1B Nb3 c2 Ne5 e3 Nc5 Nf6 Ne6 Ne8 Ng7 Bf2 Re1 Na6 Kh1 h2 Rb1 Be7 f8B a1B Qb3 Nac7 Nd7+ Ka7 b6+ Ka6 b5+ Ka5 b7 Ba3 b8R Ra6 b6 Na8 Kg2 h1B+ Kh2 h3 b7 Bc6 d5 Rg8 Kh1 h2 Bf6 Bd4 Be5 Bb6 Qd3 Rh8 Rb3 Ra7 Rc3 Rg8 Kg2 h1B+ Kh2 Bg2 Qf1 Qb1 Qe2 c1Q Ba4 Qb4 Qd1 Bh3 Kh1 Qc5 Rb3 Q1c4 Rc3 Nac7 Ra8 Bf1 b8Q B6b7 Nh5 Rh8 Bh6 Ra6 Ra7 Na8 Qd6 Rg8 Ng7 Bg2+ Kh2 Bc6 Rc7 B6b7 Rc6 Qc7 Nb8 Qf7 Nd7 Rh8 Qc7 Rf8 Rg6 Qg8 Qd6 Nec7 Ne6 Rd8 Ng7 Ne8 Qd3 Bb2 Bc2 Kb4 Qd1 Ra1 Bb3 Ka5 Ba4 Bf1 Kh1 Ba3 Bg3 Bh3 Be5 Bg2+
2r1k1Bb/1n1nqN1n/q2BK3/RPQ1nP2/Q1R3Q1/p3N2b/N7/r2n1r1n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 d5 b4 e5 f4 h5 c4 a5 g4 a4 g5 d3+ Ke3 d2 b6 a3 g6 Qe7 g7 d4+ Ke2 d3+ Ke3 h3 b5 h4 b7 h2 c5 h3 c6 Nf6 g8N Bg7 Nh6 Rf8 c7 Nh7 Ne2 Bh8 Nbc3 Be6 Bg2 Nd7 Nd4 Rd8 Re1 h1Q b8Q h2 c8Q Bh3 Qg4 d1R Qa8 d2 Na2 Rf7 Qc2 Rc8 Ndf5 Qf1 Rb1 h1N Rb4 Rf6 Bb2 Ra1 Rc1 Qd1 Qc7 Qa4 Rcc4 Qa5 Qc5 d1N+ Ke2 e3 Kf3 e2 Ke4 Rf7 Kd5 e4 Be5 Qb6 Qa5 Qa6 Bd6 Rf6 Ra4 e1N Qc6 Rf8 Qb4 Rf6 Ra5 Nd3 Qa4 Nc5 Bf3 Nb7 Qc5 Qa8 Nh4 Qa6 Ng2 Re6 f5 e3 Qh4 e2 Qg4 Re3 Be4 Rf3 Ne3 Rf1 Bg2 e1N Bf3 Qh4 Bg2 Ndf6+ Ke5 Qg5 Bd5 Qh4 Bg8 Nf3+ Ke6 Nd7 Nf7 Nfe5 Qa7 Qd8 Qc5 Qe7+
R2bB1b1/nQnrrn2/1r1q4/Kp1qk3/N1R2n1B/Q1N1P3/n1P2R1n/4N3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 h4 Kd6 a4 b5 a5 f5 a6 g5 h6 d3 h5 g4 h7 g3 h6 g2 a7 b3 Kc3 d2 Kb4 b2 Nf3 g1N Na3 b1N Bg2 Nc3 Nb1 Nh3 Ra4 Na2+ Kb3 Be7 Qf1 d1Q Qe1 Qd5+ Ka3 Nc6 Qf1 Rb8 a8N Rb6 Nfd2 f3 Re4 f2 Qg1 f1N Re3 f4 Rf3 Na7 Qc5+ Ke5 Rf2 f3 Nc3 Nf4 Rh4 Nh2 Bh3 d6 Bd7 Qf8 Qc6 Bd8 Be8 Be6 Qb7 Qf6 Rg2 f2 Nf3+ Kf5 Rhg4 f1N Rf2 Ne3 Ne1 Ke5 Bb2 Qc6 Rh4 Ned5 e3 Nc7 Rg4 d5 Kb3 Nh5 Rc4 d4 Ba3 d3 Be7 Qg6 Bh4 d2 Ka3 d1R Kb3 Nc1+ Kb4 Rd7 Ka5 Qf7 Re2 Qd6 Rf2 Rc6 Nb6 Nf4 Nba4 Na2 Qa8 Rb6 Qf3 Ne7 Qb7 Rg8 h8R Rg7 h7 Nf5 Rf8 Nh6 h8Q Qh5 Qg8 Rge7 Qgg2 Bg8 Qg5+ Ke6 Qc5 Qhd5 Qa3 Ke5 Bg6 Nf7 Re8 Nce6 Bh5 Bc7 Ra8 Bd8 Bg6 Nc7 Bh5 Ng5 Be8 Nf7
3Nn1b1/n5b1/B3BQP1/1RNP4/1rrrp3/Nb3Rr1/1B2QK1k/rb1q2n1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 g4 Kg6 f4 h5 a4 c5 d6 e5 g5 Kf5 g6 b5 a5 e3 d7 b3 a6 b4 a7 b2 Rh3 e2 Rg3 c4 Nc3 b1B Na4 h3 Kf2 e1N Nf3 h4 Nc5 h2 Na6 h1B Rg4 b3 Rg1 c3 Ke2 c2 Nc5 b2 Be3 c1R Rg2 h3 Nb3 h2 Rg4 Rh3 Qd2 Rc4 Nc5 Bg7 Ra5 Rg3 Kf2 Nc6 Rb5 Nf6 Qe2 Ne8 Nd2 Nf3 Bh3 Rb8 a8B Na7 Bb7 Ng1 Ba6 Bf3 Rh4+ Bg4 Rh6 h1R Rh8 e4 Rf8+ Qf6 d8N Be6 d5 Bg8 Bd4 Rc8 Be5 Rd4 Nc4 Rc6 Nf7 Qh4 Bf6 Qh5 Nd8 Rc7 Na3 Rc8 Nd3 Rc2 Nc5 Rcc4 Bg2 Bf3 Bf1 Kg4 f5 Kf4 Be5+ Kg4 f6 Kh4 f7 Bg4 Qd3 Bd1 Bh3 Bb3 Be6 Qg4 Bf6+ Kh3 Qe2 Kh2 Bg5 Bd3 Bc1 b1R Bb2 Ra1 Qe1 Qd1 Qe2 Nd6 Re8 Bdc2 f8Q Bb1 Qf6 Rb4 Rf8 Ne8 Qe5 Rbc4 Rf3 Rb4 Nc4 Raa4 Na3 Rbc4 Qg5 Rab4 Qf6 Qc1 Nc2 B1a2 Qd2 Ne2 Qe7 Rd1 Qe1 Ng1 Qf6 Qd2+ Qe2 Ra1 Na3 Bb1 Bg4 Qc2 Be6 Qd1
R7/2Q1rB2/n1nRqP2/1pKN1rrQ/1P1QN3/2n1B3/1b1nr2n/Bk1bb3 w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 cxd5 g5 Ba6 gxh4 Bf1 a4 Qb3 axb3 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 c5+ Kc4 Ke5 a4 h3 g5 b2 a5 e3 f4+ Ke4 d4 e5 g6 e2 d6 e1R g7 h4 d5 h2 a6 h3 a7 Ne7 g8Q Qb6 d7 Rh7 d8B Bg4 f5 Bd1 d6 Bg7 Na3 b1N d7 Qd6 Ra2 Nec6 Kb5 c4 Nf3 c3 Bh6 c2 Bg2 Kd3 Qh8 c1N Bc7 e4 d8Q e3 Ra1 e2 Nd2 Na2 Nb3 Nd2 Nc4 Kc2 Be3 b6 Rg1 h1N Nc5 h2 Bd5 Ng3 Ne4 Ngf1 Rg6 h1R Rh6 Qg6 Be5 Rg1 Qc7 Rg5 Bb2 Qf7 Rd6 Nh2 Bbd4 Be5 f6 Qg8 Bc3 Re7 Qh5 Qc8 Bf7 Qh3 Rb1 Qe6 Rb3 Kc1 Ra3 Kb1 Ba1 Bb2+ Ne5 Rg2 Nd3 Reg1 Nf4 e1B Ra4 Re2 Ra6 Rf1 Ra3 Nd7 Ra5 Rg8 Nd5 Rf5 a8Q Rgg5 Qab7 Ndb8 Ra8 Nd7 Qa7 Nc3+ Ka6 b5 Qd4 Ndb8+ Kb6 Bb3 Kc5 Ba4 Qf3 Bd1 Qh5 Na6+
6r1/2q2NB1/br2p1bB/1Prb2Q1/1k1n2B1/2n1P3/Qn1n1rK1/NR1R1N1r w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bc1 f5 h4 g5 Bh3 Bh6 Bg2 fxg4 Bf1 g3 Bg2 g4 Bf1 Bg5 hxg5 Qb6 Kd2 Qc7 Ke1 Qd8 f4 h5 b4 d5 c4 Kd7 c5 Kc6 g6 Kb5 g7 a5 c6 a3 f5 a2 f6 d3 e3 g2 Kf2 a4 f7 d4 f8B a3 c7 g3+ Kf3 h4 Nh3 g1R Be2 g2 Bb2 e6 Qb3 Ne7 g8Q Ra5 Ng5 h3 Qf7 h2 Kg3 Nbc6 Qg7 Rg8 Qd1 Rf1 Qf6 g1R+ Kh3 Ba6 c8N Qc7 Qf4 Nd5 Bc5 Nc3 Bg4 d2 Be7 d3 Qe2 d1B Qc2 d2 Bf8 Rf3+ Qg3 Nd4 Qb3 Bc2 Nf7 d1N Ne7 Bg6 Bh6 Re1 Rg1 h1B Nd2 Re2 Rc1 a1R Nd5 a2 Nf1 Rb1 Ba1 Nb2 Rd1 Re1 Qc2 Kc4 Qg2 Rc5 b5 Rc1 Qh2 Rc6 Nb4 Rb6 Nc2 Kc5 Na3 Kb4 Qf2 Nba4 Bb2 a1N Qe2 Nab3 Nc2+ Kc5 Na1 Nd2 Qh2 Kb4 Qg2 Rf4 Qe2 Bd5 Qef2 Rf3 Kg2 Nce2 Qe5 Rc5 Qg5 Nec3 Bc1 N2b3 Qa2 Nb2 Rh1 Nd3 Bd2 Nb2 Rb1 Rc1 Be1 Rd1 Bg3 Re1 Be5 Nd2 Beg7 Re2+ Kg1 Rh2 Rd1 Rhh3 Kg2 Rh5 Rg1 Rh1 Rb1 Rhh3 Ng3 Rh5 Rgd1 Rh1 Nf1 Rf2+
2n3rr/k1Bnn1KN/2Q1pPn1/2qb3B/r2b2RR/1nN2R2/1N1b1PQ1/4r3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 b5 Kd3 d5 h4 Kd7 a4 Kc6 c4 Kb7 f6 g5 h5 b3 c5 b4 a5 e6 c6+ Ka7 h6 b2 a6 g3 c7 g2 h7 b3 Rh3 g4 Be2 g3 Ra5 Bh6 Na3 b1N Be3 b2 Qc2 Nd2 Bf4 b1N Rh2 Ne4 Qc6 Nd6 Rh4 Ne7 Rh2 Qf8 Rc5 Nd7 Bd1 Nd2 Bh5 Nb3 Bg6 Bb7 Nc4 Ndc8 Bh5 Ng6 Ne2 g1B Rh4 g2 Nc3 Bh2 Nb2 g1R Rc4 Qc5 Ke2 d3+ Kf3 Bg3 Kg4 d2 Be5 d1N Rf4 d4 Rf3 Rf8 h8N d3 Nf7 d2 Ng5 Rh8 Nh7 Be3 Bf4 Bd4 Be5 Rg2 Kg5 Ne3 Kh6 d1R Kg7 Re1 Bf4 Nd5 Rg4 Ncb6 c8R Nde7 Bc7 Bf4 Rh4 Rg4 Rg8 Rd8 Re3 Nbc8 Rf3 Ka8 a7 Bd2 Qb5 Bd5 Qf1 Kb7 Qg2 Ka6 a8Q+ Na7 Qb8 Nac8 Qb5+ Ka7 Qc4 B4e3 Qb5 Ra4 Qc6 Bd4 Kf7 Ngf8 Rgg4 Nfg6 Kg7 Rdg8+
R4R2/2r2N2/3Pqb1n/2QBPr1N/nbbR2r1/KQ2p3/1BQbn3/3r1bk1 w - - 0 1 illegal: No proof kernel
Q6B/1bbK1n2/QPn1N1r1/Rrbq4/B1bR1B2/1b1p1brN/P3k3/4q1R1 w - - 0 1 illegal: No proof kernel
B1QR1K2/2r2b1N/p3nR2/B7/3Q2r1/B1n1PNbP/kn1rqR2/3nnrb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 g5 e3+ d3 b6 d5+ Ke5 f5 h3 f3 b7 g3 b5 d4 b6 g4 c3 f4 Qd2 Kb3 c4 a6 c5 f2 c6 g2 c7 g3 Qe2 f3 Nc3 d2 Ra2 d1N Na4 d3 Ra1 d2 Bb2 Bd6+ Kd5 Be6+ Kd4 Ne7 c8Q Ra7 Nc3 Nd7 b8R Nf8 b7 Bf7 Ra2 Rg8 Ke4 Ne6 Ba3 Nd5 Kf5 Rg4 Ne4 Nb2 Ng5 d1N Qd2 N5c3 Nh7 Be5 Bb5 f1R Bc6 f2 Nf3 g1N Qd4 g2 Ra8 Bf4 b8B Bg3 Bc7 Qf8 Ba5 Rc7 Kf6 Qb4 Qd5+ Qc4 Qd4 Qe2 Bb7 Re1 Rb8 f1R Ba8+ Qb5 Rb6 Re2 Rd6 Rd2 Rd8 Qe2 Rh2 Rc5 Ke7 Rc4 Ra1 Rc5 Rb1 Ka2 Rc1 Ng5 Kf8 Rc7 Ne5 N1f3 Rc2 g1B Rf2 Nh4 Nf3 Ng2 Rc1 Ne1 Rc2 Nb5 Rc6 Nbc3 Rf6 Ne6+
1bBRbRbQ/2N1n2P/1rnpP1R1/B1r5/q1B1k2n/5N2/3Krn2/2rQ1r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 h4 Kf6 b4 Ke5 c4 a5 b6 g5 h5 f5 h6 f3 c5 a4 h7 f4 c6 a3 b7 a2 c7 d3 b5 g3 b6 g2 Nh3 g1R Qc2 g4 Nc3 f2+ Kd2 g3 Qb2 g2 Ng5 f3 Ne6 Qe8 Qb3 Ra5 Nf4 Bd6 Ncd5 Rc5 Nh3 Ne7 Qc4 Nbc6 Rb1 a1R b8Q Ra2+ Kd1 Re2 b7 d2 Rb6 Rg8 Qa4 Rg6 Qb3 Kd4 e5 Ke4 Rh2 Rh1 Bb2 g1N Bc3 Rf6 Kc2 d1N+ Kc1 Rg6 Rg2 Rf6 Rg8 Re6 Rf8 Rg6 Bg2 f1B Ra6 Nf2 Qd1 Re6 Qa8 Rg6 b8R Bb7 Rd8 Rf6 c8B Bb8 Ra5 Ba6 Ra1 Bc4 Nc7 Bg8 Ra6 Rh6 Nf4 Rg6 Bh3 Rf6 Be6 Bh3 Ng6 Bf5 Nh8 Bg6 Bc4 Ng4 Qa7 Na5 Nf7 f2 Qe1 Nf3 Kd1 Nh4 Ng5+ Ke3 Nf3 Ke4 Qb7+ Rfc6 Qb2 d6 e6 Rg1 Bb4 Bh5 Qh8 Rb6 Bc3 Qb5 Qf1 Nac6 Ra1 Be8 Ba5 Qa4+ Kc1 Re1+ Kd2 Re3 Qe2 Re1 Qf1 Rc3 Rd1 Rc1 Qh1 Re3 Rg1 Ree1 Rg3 Re3 Qd1 f1R Rg1 Nf2 Rg6 Re2+
Bbkr1r1Q/nq1r3P/1PbQ3n/RR2N1p1/4rr2/N3K1b1/3B4/1q1N1Q1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 g5 b4 a5 e4 d5 c4 Kd7 c5 g3+ Ke2 g2 h5 d3+ Kd2 f3 b6 f2 h6 d4 h7 a4 b5 f4 b7 a3 b6 a2 e5 f3 Rh5 Nc6 b8Q Na7 Nc3 Bd6 Ba3 Bb7 Nce2 Nh6 Rh2 Qc7 Bb4 Re8 Nc3 Bc6 Qe2 Rf8 Nd1 Qb7 Rb1 a1R e6+ Ke7 Rb2 Bg3 Qd6+ Ke8 e7 Ra4 Ba5 Rd8 Rb5 Rc4 Qe1 Rb4 Be2 f1R Rh3 f2 Nf3 g1B Ne5 B1h2 Bf3 Rh1 Qf1 Be4 c6 Rf4 c7 Bc6 Qg2 f1R c8N Rf8 Bd5 R1f4 Qf1 Re4 Rh4 Ra4 Rf4 Rc4 Rf5 Ra4 Kc1 d2+ Kc2 Rc4+ Kd3 Rf4 Ke2 d3+ Ke3 Rcd4 Nb2 d1Q Bd2 Qb1 Nd1 Be1 Nc4 Bh4 Na3 B4g3 Be4 Rd7 Ra5 Ra4 Rfb5 Rb4 Qc5 Rd8 Nd6+ Kd7 Nf7 Kc8 e8Q Rc4 Ne5 Rb4 Bc1 d2 Qd6 Rd4 Qee7 Rb4 Qef6 Rc4 Qh8 Rd4 Nb2 d1R Bd5 R1d2 Nd1 Rb4 Bg2 Rd5 Bd2 Ra4 Qb4 R5d7 Qd6 Bd5 Ke2 Rg4 Qdf6 Qb8 Nc3 Bf4 Nec4 Bhg3 Nd1 Bc7 Qe7 Rgf4 Qd6 Qa8 Ne5 Bb8 Be4 Qc6 Ke3 Qc7 Bg6 Bg2 Be4 Rd4 Ba8 Qb7 Be1 Bc6 Bd2 Rde4#
r1N1N3/N2n2PQ/b7/6Pr/1QBkpr1Q/1b4br/nnqK1R1B/2R3rn w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 a4 Kf7 f4 Ke6 g4 Kd5 f5 e5 a5 h5 c3 b5 f6 e3 g6 h4 g7 e2 a6 h3 g5 b3 a7 h2 f7 b4 Bd2 e4 Ra4 b2 Ra2 d3 c4+ Kd4 c5 d5 c6 b3 c7 Rh3 Ra1 Ba6 c8Q Nd7 Bf4 d2+ Kf2 e1R Qcc2 Qb6 Nc3 b1R Qh5 d1B Bc4 b2 Qh4 Ne7 Ra2 Nc6 Na4 Bd6 f8Q Nb4 Qe2 Bc7 Qeh5 Bb3 Qh7 Rf1+ Ke2 Qb5 Bg3 Rf4 Nb6 Rc1 Kd2 b1R Rb2 Na2 Nc8 Qb7 Qb4 Rc3 Qg4 Rh5 Qh4 Bd6 Be1 Rh3 Ne2+ Ke5 Bf2 d4 Rc1 h1N Nc3 d3 Bg3 Kd4 Bh2 Qb6 Rcc2 Rg1 Rc1 Rff1 Rbc2 Bg3 Rb2 Rf4 Rbc2 Rb8 a8N Qb7 Nc7 Ra8 Rf1 Qb8 Rf2 Qb5 Rc1 Qb7 Rcf1 Qb5 Ne8 Qb6 Ke1 d2+ Ke2 d1N Kd2 Nb2 Rc1 Qb7 Nb5+ Ke5 Re1 Qc6 Nba7 Kd4 Bd5+ Qc4 Qb8 Qf1 Bc4 Nd3 Qb4 Nb2 Re3 Qa1 Re1 Qb1 Rc1 Qc2+
5Nk1/2NR2P1/b1qp1n2/3r2n1/b3R1Bn/1QBPR2r/b5KQ/Nq1n1nn1 w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Nf3 b5 Bb2 b3 Ng1 b4 Bc1 b2 Na3 b3 Nb1 Bb4 cxb4 Qf6 Nc3 Qg5 Nb1 Qd8 Kf2 Kf8 a4 c5 g4 f5 e4 h5 a5 d6 g5 f3 a6 h3 b5 h4 a7 c4 e5 h2 e6 h3 d3 f4 g6 c3 b6 c2 b7 Qe8 Nd2 b1Q Ra4 b2 Bg2 Nd7 b8Q Ngf6 g7+ Kg8 e7 Ne5 Qb7 Ng6 Qb6 Ba6 Qb7 Nh4 Ra3 Qc6 Kf1 f2 Ne2 Rh7 Rg1 h1N Nd4 h2 Qe2 Rh5 e8N Rd5 Nc7 Re8 Qb6 Re3 Nde6 Rh3 Qe5 Qc5 Ra4 Qc6 Ke2 f1N Qb3 Ne3 Re4 Nf2 Nf8 h1B a8R Ned1 Kf1 f3 Qh2 Qc5 Rd8 Qc6 Re3 N2e4 Rd7 f2 Bf3 Ng5 Bg4 Be4 Rgg3 Bg6 Re4 Be8 Ke2 f1N Rge3 Qa1 Ke1 b1B Bb2 Ba2 Bc3 Qb1 Ke2 c1N+ Ke1 Nb2 Kf2 Nd1+ Kg1 Ne2+ Kh1 Nhf3 Kg2 Neg1 Qb6 Bh5 Nb3 Be8 Na1 Nh4+ Kh1 Qa8 Qb3 Qb7 Rf7 Ba4 Rd7 Nf5 Kg2 Qb6 Qc4 Qc6 Qb3 Nh4+
r1Q2R2/r3k1pQ/BN1qbN1K/1b1b2nB/P1Nb2P1/2n1b3/1R4qB/2nb4 w - - 0 1 illegal: Other
K3brrQ/Q1b3pB/R3Rn1P/1B3P2/b1n5/1NB2q1q/Q2Nb3/2b1k1bn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 f4 Ke6 c4 Kf5 b4 d5 h4 a5 h5 e5 b6 d3 Kc3 d2 c5 e3 c6 Ke4 c7 e2 b5 Ke3 f5 Kf2 b7 e1Q b6 e4 Kd4 g3 h6 g2 Qh5 d1B Rh2 a4 Nd2 a3 Qg6 e3 Ngf3 e2 Nc4 a2 Ng5 Bd7 c8B B1a4 Qh7 Nf6 Nf3 Qd1+ Bd2 e1N Nb2 Ba3 Nc4 Be8 Na5 Nd3 Qg8 Nbd7 b8Q N7e5 b7 Bc1 Bc3 Nc4 Nd2 Ke1 Qa7 Nf2 Kc5 g1B b8Q d4 Be6 d3 Nab3 Qf3 Bf7 Qh3 Bg6 Nh1+ Rf2 Qd7 Bh7 Qb7 Qf7 Qbf3 Be2 Ne3 Kb6 Rf8 Qd5 Nc4+ Kb7 Rg8 Rg2 Rf8 Rg4 Rg8 Re4 Rf8 Re6 Rg8 Rb1 a1B Qd8 Bb2 Ra1 Ba3 Ra2 Bd6 Ra3 Rc8 Ra1 Bb8 Ka8 Rf8 Qdd7 Rd8 Qc8 Bc7 Qcb8 Bad7 Raa6 Ba4 Ne4+ d2 Bf1 Na5 Bb5 Nc4 Qc8 Ke2 Qcb8 d1B Qd2+ Kf1 Qa2 Be2 Qc8 Nd5 Ned2+ Ke1 Qcb8 Nf6+ Rac6 Bg6 Re4 Rf7 Ree6 Rh8 Qg8 Rf8+ Qb8 Qf4 Ra6 Be8 Qa7 Qf2 Bg6 Qff1 Qh7 Rhg8 Qh8 Qf2 Bh7 Qff3+
3B2B1/2n2p2/BrQb1PK1/2Qn1n1r/5bbk/2RQ2R1/2r2rP1/qNnn2N1 w - - 0 1 illegal: Other
rRR5/2n1P2Q/b4Q2/1B1pb1P1/7n/nBBqN1Kb/1N1rn2Q/rk4nr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Kf6 e4 Ke5 b4 a5 c4 h5 c5 f5 c6 f3 g5 d3 b6 Kd4 b5 h3 c7 d2 b7 f4 b6 h4 e5 h2 e6 a4 e7 a3 Qe2 d1N+ Ke1 f2+ Kd2 h3 Qf3 a2 Ke2 Nh6 Ba3 Nc3+ Kd2 Nb5 Ke2 Na6 b8Q Nf5 b7 Nh4 Nc3 Bg7 Rb1 a1R Qg3 f3+ Kd1 Be5 Bb4 Na3 Nge2+ Kd3 Na4 d6 Rg1 h1N Qf4 h2 Qf6 Ng3 Nec3+ Ne2 Nd5 h1R Bc3 Bh3 c8B Nc7 Be6 Qd7 Qc8 Rd8 b8Q Qb5 Ne3 Rd7 Bg2 f1B Ke1 Nf4 Kf2 Be2 Kg3 f2 Rgc1 f1N+ Kf2 Qa6 Bc6 Nh2 Qch8 N2f3 Bb3 Ng1 Kg3 Qc4 Bb5 Bef1 Bb2 Kd2 Qh7 Qd3 Rc4 Be2 Rb4 Bef1 Rc1 Be2 Rc6 Bef1 Bc3+ Kc1 Nb2 Kb1 Qa7 Bfg2 Rc5 Bb7 Qb6 Ba6 Qfh6 d5 Qbf6 Rd6 Qh5 Rc6 Qe2 Re6 Qh2 Rb6 Be8 Rc6 Rb8 Rb6 Rc4 Rb4 Rc5 Rd4 Bb5 Rc4 Qe2 Ne8 Rcc8 Nc7 Bd2 Rc2 Bc3 Rd2 Qh2 Nfe2+
NNnQK1n1/3P1P2/2rb1r1q/1NB2R1b/1R1nr1r1/1B6/2rR2Qp/1q2k1r1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 f4 c5 g4 a5 d4 h5 Kg6 e5 Kf7 c3 b6 c4 f5 h3 g5 a4 g6 a3 d5 a2 d6 c2 b7 h2 f6 c3 g7 h4 b3 e3 Ba6 h3 Qg4+ e4 Qf3 e2 Nd2 e1Q Qf4 Nc6 b8N Nce7 Nf1 Qb6 Ne2 Rh6 Qd2 e3 Bc4 Bg4 d7 Ra4 Ke8 Nc8 f7 Bh5 Nd4 e2 Nb5 Rf6 Ne3 Bd6 Rf1 h1R Rf5 h2 Rb1 a1R Rb2 Rg1 Be6 R4a2 Nc4 Rg4 Qg5 Qh1 Be3 c1R Rd2 e1R Bg1 Qa6 Nb6 c2 Na8 Ree4 Be3 Rcg1 Bd4 c1N Bc5+ Ka5 Qh4 Rc2 b4+ Ka4 Qf2 Nb3 Qf3 Nd4 Qg2 Be7 Ba2 Rac1 Bd5 Bd6+ Be6 Nge7 g8Q Qb6 Qf8 Ng8 Qe7 Qa6 Qd8 Qb6 Nbc7 Qc6 b5 Ka5 b6 Ka4 Rd5 Kb3 b7 Kc3 Rf5 Qb6 Re2 Qb1 Nb5+ Kd3 Rd2+ Ke3 Qg3+ Qf3 Qg2 Qf4 Na6 Qh6 b8R Ra2 Rb7 Rcc2 Nb8 Ra6 Na3 Rc6 Rb4 Rgc1 Nb5 Rg1 Rd1 Rf2 Rd3+ Ke2 Rd2+ Ke1 Rf3 Nce7 Bb3 Rfe2 Rf5 Rf2 Rd3 Rc2 Rd2 Nc8+
2kN4/b2pQ3/1R2rq1b/nR1Nnbb1/B2K3Q/P4bBq/rP1R3b/1Q2q3 w - - 0 1 illegal: No proof kernel
1Q6/b2prbK1/6QP/4NrNR/qR2r2r/3rb1n1/1Nr4P/n1kB1qBR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 a4 g5 e3 f5+ Kh3 b5 c5 b3 c6 b2 a5 b4 a6 d3 c7 f3 a7 g4+ Kg3 b3 Na3 b1R Ra2 d2 Bc4 b2 Qe1 d1R Be6 Kd3 Kf4 g3 Ke5 f4 e4 g2 Ne2 g1B Qa5 f2 Qa4 f1Q Bd2 f3 Bg4 f2 Nc3 Nh6 Bf3 Rbc1 Qb3 b1R Rb2 Ba6 c8N Qa5+ Kf6 Bc5 e5 Nc6 e6 Nd4 e7 Nhf5 e8Q Ng3 Ne7 Bc4 Be3 Qa4 Ng6 Rc2 Kg7 Bf7 Qbb8 Nb3 Nc4 Na1 Rb4 Rdd2 Bg4 Re1 Bd1 Rde2 Bd4 Re4 Nb2+ Kd2 Ne5 Kc1 Qe6 R1e3 Qg6 Rd3 h6 Re8 Rc4 Rh4 Ne4 Re7 Ng5 Re4 Rb4 Bb6 Bc3 Be3 Bd4 Rh4 Qh8 Rac8 a8R R8c4 Bb6 Rce4 Ra5 Qg2 Qb8 f1R Bd4 Rf5 Rc5 Bf4 Bf2 Be3 Rcb5 Ba7 Bd4 Be3 Rc5 Bd2 Bg1 Be3 Ne6 Nf1 Nf3 Rff4 Rh5 Rf5 Ne5 Ng3 Ng5 Qf1
1b2RBq1/2PKq1B1/q1Q1npkr/1r3N1q/q2PnRB1/1b2qNN1/r4Q2/8 w - - 0 1 illegal: No proof kernel
4B2b/kP1bNb2/1rn1Q1B1/n1p5/1n3Rrn/n2RrN2/3BPq2/1KbN1Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Kd7 Kd2 f5 Kc2 a5 b4 c5 g4 Kc7 d5 Kb7 g5 h5 g6 h3 g7 f3 d6 f2 d7 a4 b6 h4 b5 c3 Qd2 f4 Qe1 h2 Bb2 h3 Qc1 a3 Qe3 f3 Qd4 a2 Ba3 Na6 Qa4 Rb8 Bb4 Ne7 g8B Rh4 Bh7 Bg7 Be4+ Nc6 Qa5 Qf6 d8Q Rg4 Qe8 Bh8 Bg6 Bd7 Ba3 Nab4+ Kc1 c2 Bg2 f1N Qe5 f2 Qe6 Ne3 Nc3 f1R+ Nd1 Qf2 Nf3 Nc4 Rb1 a1N Rb3 Rg1 Rd3 Re4 Bb2 Re3 Bc3 Na3 Kb2 Nb3 Qa8+ Kc8 b7+ Kc7 Qa4 Nba5 Kc1 Kb6 Bd2 Ka7 Qab3 Rf8 b8N Rf6 Be8 Rg6 Qb1 Rg4 Qa1 Rf1 Rg1 h1B Qb1 Re1 Rf1 h2 Bh3 Bg2 Bg6 h1N b6+ Ka8 b7+ Ka7 Qa1 Ng3 Qaf6 Nf5 Kb2 c1B+ Ka1 Nb5 Kb1 Nh4 Be8 Rf4 Bf5 Rg4 Bfg6 Bh1 Na6 Bg2 Nc7 Bh3 Nd5 Na3+ Ka1 Bg2 Ne7 Bh1 Nd4 Bd5 Qff7 Qg3 Rf4 Qf2 Qff6 Reg1 Nf3 Bb3 Qee5 Bf7 Qee6 Nac2+ Kb1 R1g3 Bf5 Rg6 Be4 R3g4 Bf5 Rh6 Bg6 Na3+ Ka1 Qg2 Qd4 Nb1 Bf5 Nd8 Qg6 Bc4 Nf2 Ba3 Qc6 Rd6 Bfg6 Bf7 Qc3 Rf6 Qc1 Qg1 Qd1 Bc1 Qf1 Na3 Nd1 Qf2 Qd5 Rb6+ Qe5 Nac2+ Kb1 Ndc6 Qe6 Na3+
r1NknKN1/1pnr1P2/q2P1N2/1bq3R1/8/r3bB2/1Q1Q3r/BrRrbB2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 h5 Ke3 c5 Kf4 b3 Kg5 e5+ Kg6 c4 g4 c3 d4 e3 f4 e4 a4 e2 f5 e1R a5 b2 g5 c2 d6 h3 d5 e3 a6 e2 d7+ Ke7 a7 h4 f6+ Kd6 Kf7 Kc7 g6 h2 d6+ Kc6 g7 h3 Nd2 b1R Ngf3 Rh7 Nh4 Na6 Ne4 Qb6 d8Q Bd7 Ra5 Nc7 Nf5 Qa6 Qd2 Rd1 Bb2 c1Q Nh6 e1B Rg5 Qc5 Ba1 Rb3 Qe8 Ra3 Qe5 Rb1 Rhg1 h1R Qeb2 Rh2 Rh1 Be7 Rhg1 Bd8 Kf8 Be8 Rh1 Kd7 Rhg1 Kc8 Rh1 Bb5 f7 Nf6 g8B Nfe8 Nf6 Re2 Rhg1 h2 Rh1 Re7 Rhg1 Rg7 Bh7 h1R Nhg8 Rh2 Be4 Rd7 Beg2 Rgh7 Bf3 R7h4 Rh1 Rd4 Rhg1 Nd5 Rh1 Bb6 Rhg1 Ndc7 Rh1 Rb8 a8N Kd8 Rhg1 Ba7 Nb6 Ra8 Nc8 Rdd3 R1g4 Bb6 Rc4 Rd4 Rc1 Rdd3 Qe2 Rd1 Qg2 Qf2 Qd2 Be3 Qb2 Qc2 Qd2 Qc5
br1bR2B/P1k1r1NQ/Bb6/n1p1Nbq1/qq2b3/2PQKR2/1n4b1/1N4R1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b3 e5 b4 axb4 dxe5 f5 Ba3 fxe4 Bb2 Be7 Bc1 Bf8 Ke2 b5 f4 d5 a4 Kd7 g4 c5 e6+ Kc7 g5 h5 a5 h3 a6 h4 f5 b3 f6 b4 f7 d4 e7 b2 e8R e3 a7 h2 g6 h3 g7 b3 Qe1 d3+ Kf3 e2 Qd1 e1B Re4 d2 Re5 Rh7 Ra3 Bf5 Ne2 Be7 f8N Na6 Ng1 Rb8 Re4 Nb4 Kf4 Nd3+ Kf3 B7h4 Nd7 Ne7 g8Q Nc6 Ra6 Qg5 Be2 Re7 Re3 Na5 Nf8 Beg3 Qf1 d1Q Rf6 Be1 Qh7 Bb4 Na3 b1B Bb2 Bc3 Ba1 Nb2 Rfe6 Qd7 Ba6 Qa4 Qd3 Be5 Ke2 Bf4 Nf3 Bfg3 Rd1 h1B Kd2 h2 Ne5 Bg2 Rg1 h1B Rf6 Ba8 Rf7 Bfe4 Rf3 Bg2 Ne6+ Kb6 c3 Bf5 Qe4 Rc7 Nf7 Nd3 Bb2 Qh5 Qc4 Bd8 Bc1 b2 Ke2 Bf4 Re5 Qh6 Be3 Qg5 Bd4 Rd7 Re4 Bfc7 Bh8 Kc6 Qd4 Bb6 Ng7 Kc7 Re8 Re7+ Ne5 Bc2 Qe3 b1Q Qd2 Qbb3 Nb1 Nb2 Qe3 Bce4 Qd3 Qbb4 Kf2 Qg3+ Ke3 Qg5+
rR6/pN2nr1Q/3n1nN1/1K1bPn2/3R2q1/2qnq1PN/nR3B2/Q2B1kb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 e4 d5+ Kb3 f5 Ka4 h5 c4 h3 b4 h4 g3 h2 b6 h3 b5 d3 b7 Kd4 c5 d2 b6 Ke3 e5 Kf2 c6 f3 c7 d4 Bc4 f4 Bb2 d3 Bb3 Bc5 Kb5 Be6 c8Q Qc7 Ne2 Nc6 b8N Bd5 b7 Rh7 Ba4 Rf7 Bc3 Nf6 Na6 Ne7 Re1 h1N b8R h2 Qb3 d1Q Qb2 d2 Ba5 Qb3+ Bb4 d1N Qe8 Qe3 Bc2 Bd4 Ka4 Qcc3 Ra2 Kg2 Qc1 f2 Qg8 f1N Qh7 f3 Nc5 f2 Nb7 Nd2 Bc5 f1N Rb2 Nhf2 Kb5 h1Q Ng1 Qh4 Nh3 Nc4 Nd2 Qg4 Qa1 Nd3 Nf3 Nd6+ Ka6 Qef4 Re4 Bg1 Rd4 Nfe3 Nh4+ Kf1 Ng6 N3f5 Bb6 Qe3 Ba4 Qce1 Bc2 Nc3 Bd1 Na2 Bc5 Nde8 Kb5 Qc3 Re4 Qef3 Bf2 Qe3 Rd4 Ned6+
1r2B1nN/3nN2k/R1b2Br1/1qr2QPn/Bp1n4/nr1PR3/4R1Q1/2b2qK1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 g4 h5 e4 c5 a4 f5 d6 Kf7 a5 Kg6 d3 b3 g5 b2 e5 h3 e6 h2 a6 c4 a7 c3 d7 f3 e7 h4 e8Q+ Kh7 Qde1 c2 Q1e3 f4 Qe2 h3 Nd2 b1N Nb3 Bb7 Q2e3 Ba3 Q3e5 b4 Qf8 Bc6 Qe2 Qa5 d8R Qb5 Re8 Nd7 Bb2 c1R Re3 Rc5 Nd4 Rb8 a8B Rb6 Bc3 Bc1 Ra6 Na3 Bg2 Rb8 Kf1 f2 Ngf3 Rb6 Rg1 h1R Nf5 h2 N3h4 Rb8 Be4 Rb6 Kg2 f1N Ng6 Nd2 Nfe7 Nb3 Bf6 Nd4 Re1 f3+ Kf2 Rg1 Qd2 Rb8 R1e2 Rg2+ Kf1 h1N Qc8 Rh2 Kg1 Ng3 Bd5 Nh5 Bb3 Rb6 Ba4 f2+ Kf1 Nf8 Qf5 Nd7 Qa2 Rb8 Qad5 Rh1+ Kg2 Rg1+ Kh2 Rd1 Qg2 f1Q Bb7 Rd2 Bc8 Rb2 Bb7 Qf4+ Kg1 Rb3 Bc8 Nf8 Be6 Nd7 Bf7 Qf1+ Kh2 Nh6 Be8 Rg8 Nh8+ Rg6 Qgg4 Qf3 Qg2 Ng8 Kg1 Qf1+
1BkNr1n1/4bB1R/K1b1q1b1/2Rbp3/1Q1Qq3/R2BqP2/2N2P1b/rn2q3 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 g5 cxd4 g6 f5 Ba3 f4 Bb2 f3 exf3 hxg6 Ba3 g5 Bc1 g4 Ke2 d5 Kd3 Kd7 h4 e5 a4 b5 c4 g5 a5 b3 a6 b2 h5 g3 a7 b4 c5 g2 h6 b3 h7 g4 Nc3 b1Q+ Qc2 g3 Rh5 b2 Be3 Qe7 Bh6 Bb7 c6+ Kc8 c7 Qe6 Nb5 Nc6 Ne2 g1B Bf4 g2 Ra5 Be7 Ra3 Bh2 Be3 g1Q Nf4 Na5 Rh3 Qc1 Qb3 Bc6 Qb4 Qgg4 Rh6 Nc4 Rh5 Qh6 Ne6 Nd2 Nd8 Nb1 Rh3 Qhe6 Be2 Rb8 a8B Rb7 Rh6 Ra7 Bf1 Nf6 Rh5 Re8 h8Q Ng8 Rh7 Qf4 Qf6 Qe1 Qh4 Ra4 Rb3 Ra1 Na3 Qfg4 Nc2 Qc3+ Ke2 Qe4 Ra3 Qc5 Bh3 Qa7 Bf5 Qb6 Bg6 Qc5 Bf7 d3+ Kf1 d2 Ke2 d4 Qf4 Q4d5 Kd3 d1B Qe4 Qg4 Qf4 Qde6 Qe4 Qa7 Qd5 Qgg6+ Kc4 d3 Bc5 d2 Bd6 Qe3 Bb7+ Kd7 c8R Qgf5 Ba6 Qfe4+ Nd4 Bc2 Bb5 d1Q Bb8+ Bd6 Ba6 Qde1 Bb5 Ba4 Ba6 Bb7 Rc5 Bac6 Bb5 Kc8 Ba6 Q4f5 Nc2 Be7 Bb5 Qd7 Ba6 Qfe4+ Qd4 Qd6 Bc7 Bd5+ Kb5 Qe6 Ka5 Bc6 Bd3 Bd5 Bb8+ Bbc6 Ka6 Nd2 Ra4 b1B Na3 Bc2 Raa5 Nb1 Ra4 Bd1 Nc2 Be2 Ra3 Bf1 Bb5 Bd3 Qdc4 Q4g4 Qd4 Bg6 Bd3 Qge4
R1bB4/b7/1rBQ3K/n3p1nn/QNb3P1/1q1qn1k1/3Pb1Nn/2R2BrR w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 a4 b5 g4 h5 d6 c4 a5 c3 f3 h3 a6 h2 d7 c2 a7 b3 Ra4 h4 Qe2 b2 Nh3 b4 Qc4 b3 Rg1 h1N Qb4 e3 Qb6 e2 Kg6 e1N Nf4 h3 Bb5 h2 Nd5 Rh6+ Kg5 Ng3 Rh1 Nf1 Nc7 Ng2 Na3 b1Q Bc6 b2 Bb7 Nc6 Rc4 Nge3 Qa6 Nd4 Be4 Rb6 Bd3 Nf6 Ne6 Nh5 Nf4 Ne6+ Kg6 Rab8 a8B Ng5+ Bc6 e6 Qa7 Bc5 Qa4 Qa2 Ng2 b1B Kh6 Qb3 Be2 Ba2 Bb2+ Bd4 Bc3 c1N Nc2 R8b7 Ba5 Rb8 Nge1 Kf4 Ng2+ Kg3 f4 e5 f5 Ra8 f6 Bc5 Rg1 h1B f7 Nh2 f8Q Rab8 Bf1 Bd4 Nf4+ Bg2 Rh1 Bf3 Ng2 Be2 Qfb4 Qc3 Qe7 Rb1 Nb4 Nb3 Qf6 Qg8 Qd6 Qd3 Rc5 Re1 Rc1 Qgc4 Bb6 Na5 Bc7 Qcc3 Bb6 Bc4 d8R Bf5 Rc8 Qb3 Bd8 Rb5 Ra8 Ba7 Nf4 Bd7 Bfg2 Rg1 Bf1 Bc8 Ng2 Rb6
NBq1B1k1/qb1Rbnr1/1bN1n3/3P1r2/6bn/1KP2Qn1/Rp1Q1b2/2QR4 w - - 0 1 illegal: No proof kernel
1rqN4/3Nnq1k/Qbb1B3/1P4rP/Q1p1b1B1/b4q1Q/3KRqq1/R3B2n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 c5 e4 a5 h4 g5 d4 f5 b6 Kf7 b7 Kg6 h5+ Kh7 e5 c3 d5 c4 b5 g3 e6 a4 d6 g4 e7 a3 e8B a2 d7 f3 Bg2 f2+ Ke2 f1Q+ Ke3 f4+ Kd4 c2 Kc3 f3 Bh3 f2 Bf4 c1B Qd4 g2 Qd6 g3 Kc2 Ne7 Be3 Nbc6 b8Q Bb7 Qd3+ Nf5 Qd1 Bfa3 Bf7 Rg8 Qbd6 Qc8 d8Q Nce7 Bd2 Rg5 Be6 Rb8 Nf3 g1Q Be1 g2 Nbd2 Bc6 Nb3 Ng3 Ne5 Be3 Rh2 Bb6 Nd7 Nh1 Nd4 Qe2+ Kc3 f1B Qa4 Qf3+ Kd2 Bd3 Bhg4 Bde4 Qg3 Qgf1 Qh3 g1Q Re2 Qf1f2 Qc7 Qgh2 Qca7 Qhg2 Q7a6 Qf7 Nb3 Qf2f3 Na5 Qgf2 Nb7 Q3g2 Rb1 a1Q Nd8 Qaf6 Ra1 Q6f3
3NQ2b/2rb1q2/2QN2Rb/P2n2r1/1BB3KR/n1pq2P1/1B3qk1/qR2bq2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 a4 Kd6 f4 e5 d4 c5 g3 h5 f5 b5 f6 c4 a5 h3 f7 e3 Kf3 e2 Nc3 e4+ Kf4 e1B Na4 Bc3 Be2 e3 Ra3 h2 Bg4 h4 Qc2 e2 Bd2 h3 Qf5 b3 Qh5 b4 Ra2 b2 Be6 b1Q Bd7 b3 Bb5 b2 Qg5 Qa1 Be1 b1Q Qh6+ Qg6 Rb2 Na6 Bf2 e1B Nf3 Rh7 Nd2 Nb4 Rb1 Ne7 Nc5 Nc2 Ne6 Na3 Be3 Qd3 Kg4 Qe8 Bg1 Bg7 f8B Rb8 Ba6 Rb5 Qg6 Bh6 Ne4+ Kd7 d6 Kc6 d7 Rf5 Be3 Kd5 d8R+ Qd7 Bc1 Bb2 Rg1 h1Q Qf6 Bbc3 Bb2 Qh2 Rh1 Qf2 Bb5 h2 Qg6 Ng8 Bb4 Ne7 Rg8 Qe8 Qf6 Qf8 Rg6 Qg8 Rg1 h1Q Rf1 Qhg2 Rh1 Qgf1 Rh4 Qg7 N4g5 Qg8 Nf7 Ke4 d5 Ke3 d6 Nd5 d7 Qe8 Qd8 Bh8 Qc7 c3 Nd6 Re7 d8Q Qf7 Qc6 Rc7 Bc4 Bd7 Qe8 Ke2 Rh5 Ke3 Kh4 Kf3 Nd8 Kg2 Kg4 Qe7 Rh1 Qf7 Rh4 Rg5#
1bR4R/1qN2kbK/r1B1N2B/p7/1q4qb/P3Qq2/1q1nPN2/1n2QRbr w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h3 g5 Qb3 g3 Qb5 g2 Kd2 g4 Ke1 g3 Qb3 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bd6 Bd2 Be7 Bc1 Bf8 Kd2 a5 b4 c5 f4 h5 b5 d5 b6 c3+ Kd3 c2 a3 c4+ Kd2 c3+ Kd3 h4 b7 h3 f5 h2 g5 Ra6 f6 Ne7 g6 Qc8 g7 Qg4 g8N Kf7 Bd2 c1B Be1 c2 Nd2 Bg7 Nb3 Bf4 Nc5 c1Q Ra2 Nd7 b8Q Qb2 Ra1 Nb6 Qa4 Nc4 Qd6 Nd2 Nh3 g1B Qb6 g2 Qd1 Bb8 Ne6 Bf2 Qb1 g1B Bg2 Bh4 Nf2 Nc6 Ne7 Na7 Qd1 Nb5 Rc1 Rh7 Rc8 Nc3 Qc5 Ncb1 Qcc1 Nf3 Bd2 Rh8 Bh6 Nfd2 Qc3 Qb7 Qe1 Qb4 Kc2 Rh7 Qe3 d3+ Kc1 d4 Bc6 Nc4 Rh8 d2+ Kc2 Qb7 Kd3 d1Q+ Q1d2 Qf1 Qe1 Ncd2 Nd5 Qb2 Ndc7 Qfg2 Bd7 Qgb7 Bc6 Kg6 f7 Kf6 f8R+ Kg6 Rfg8 Kf7 Rc8 Q2b4 Kc2 d3+ Kd1 Nf1 Kc1 d2+ Kc2 Qb2+ Kd3 d1Q+ Q3d2 Qda4 Qdc1 Qh3+ Qe3 Qab5+ Ke4 Q5b4+ Qd4 Qg2+ Kf5 Nfd2 Qe3 Qg3 Nd1 Bf2 Rg1 h1Q Rf1 Bg1 Nf2 Qhf3+ Bf4 Bd8 Nd4 Qfg2 Nde6 Rh1 Bh6 Bh4 Ng4 Ke7 Kg6 Q2f3 Kh7 Kf7 Nf2 Qgg4
RqQbkN2/8/r1NR1B1r/p1b1rQn1/4P3/Prq1Qb2/2bnr1B1/B6K w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 Kf2 f5 g4 h5 Kg2 a5 d4 b5 g5 f3+ Kh2 c3 a3 c2 c6 h3 e3 b4 d5 b3 d6 h4 c7 f4 g6 f2 g7 b2 Bb5+ Nc6 Ba4 f1Q Qd4 f3 Ne2 f2 Qc5 Qe1 Nd4 f1R Qf5 Rh5 Ra2 Qc3 Qf2 Nf6 g8Q Ra6 Bb5 Bf5 c8Q Nh7 Qg5 Re1 Nd2 b1R N2b3 Re2 Nc5 Rb3 Nd7 Ne5 Bb2 c1B Bc6 Nc4 Ba1 Nd2 Bg2 Bc2 Qgf5 Ng5 e4 Rh6 Kg1 Re6 Q2f4 Re5 Qe3 Be7 Nf8 Bb2 Qc7 Qb8 Nc6 Bd8 Kh2 Bc1 Rf1 Bb2 Kh1 h2 Rg1 Qc5 Rb1 Bd4 Qcc8 Qc3 Rab2 Bc5 Rd1 Rb7 Rb4 Rb5 Rc4 Rb3 Rb4 Qd3 Rb7 Qc3 Ra7 Nb1 Qb7 Be7 Ra8 Bf6 Rd4 Nd2 d7+ Kf7 d8B+ Ke8 Qff2 Bfe7 Rd6 Bf6 Bf1 Be7 Kg2 h1B+ Kh2 h3 Qc8 Bg2 Qff5 Bf3+ Kg3 h2 Bg2 Re1 Kf2 h1R Kg3 Rh6 Kf2 Re2+ Kg1 Bh5 Kh1 Bb6 Rd5 Bec5 Bf6+ Bd8 Rd6 Bf3+
r2rb2n/N3K1k1/3NBnP1/1Rqn1Rn1/3P3B/B1rp2Q1/Qb1r1N2/r6q w - - 0 1 illegal: No proof kernel
qQbB4/bN1BK2n/1B1nrP1Q/2p4n/2q2Q1R/1R2n3/2PNq1q1/q1k2r2 w - - 0 1 illegal: No possible last move, all moves rejected
3NQrk1/2q2qq1/4P1R1/Pr5b/1p4NK/QnbN3q/1bB2B2/Bb1Rnq2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f5 g4 Kf7 d4 b5 e4 h5 a4 c5 a5 f3 e5 c4 d6 c3 d5 c2 g5 h3 Kg3 h4+ Kf4 h2 d7 b3 d6 h3 Kg3 b2 Bf4 c1B Nc3 b1B Bd3 f2 Bf1 b4 Qd4 Nc6 Qb6 Nh6 g6+ Kg8 g7 Nd4 Nb5 Ng4 Ne2 Qc7 d8B Nb3 d7 Rb8 Bf6 Bb2 d8N Ne3 Na7 Ng2 Qe3 Ne1 Nc1 Rb5 Rg1 h1Q Nd3 Qhb7 Nac6 h2 e6 h1Q Rg2 Bd7 Nce5 Be8 Ng4 Bh5 Bh4 Qg1 Be5 f4+ Kh3 f3 Be2 f1Q Bd1 f2 Bc2 Ba2 Rd1 Bb1 Bhg3 Qf7 Kh4 Qbc7 Qc1 Bc3 Qa3 Bc5 Bf6 Be3 Bd4 Bc1 Bge5 B1b2 Be3 Qe2 Bf6 f1Q Bf2 Qf3 Be5 Kh7 Bf6 Rf8 Rg3 Qgg2 B6d4 Kg6 g8Q+ Qg7 Qf7+ Kh7 Qe8 Kg8 Be5 Qff7 Bed4 Bd2 Be5 Bbc1 Ba1 Bb2 Ne3 Bdc3 Rg6 Qgf3 Ng4 Q3h3#
BKbr1r2/1q1bn3/1q1p1r2/r2NRQ1P/2r1BN2/4Qn2/k2PNR2/5bbQ w - - 0 1 illegal: No possible last move, all moves rejected
4q1Nb/N1b5/2P3BR/8/2qp1P1K/QnRnk1B1/N1Q1bqr1/q1r1bRq1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 Kf2 Ke6 g4 Kd5 b4 e5 b6 h5 c3 a5 b7 h3 Kg3 d3 g5 h2 b5 e3 c4+ Kd4 g6 d5 g7 a4 b6 e2 c5 e1Q+ Kg2 d2 c6 h4 Qh5 d1Q Qh7 a3 Nc3 a2 Qc2 e4 Bd2 e3 Qc1 e2 Qb2 h3+ Kf3 Nf6 g8N Ng4 Rb1 a1B Rc1 Na6 b8R Qa4 b7 Nc5 Bg2 Nb3 Rd1 Nf2 Kg3 Bg4 Rc1 Bd6 Bf3 Qe8 Qa3 Bc7 Na2 Qc4 Rc3 Bh5 Kh4 Nd3+ Kg5 Bg4 Be4 Qf2 Be1 Ke3 Nf3 Ra6 Rf1 h1Q Nd4 h2 Nb5 Qhg1 Bh7 h1Q Bg6 Rh2 Na7 Rg2 Rd8 Ra5 b8Q Rc5 Rd6 Bb2 Qc8 Qh8 Qf5 Qhh1 Rc1 Bh8 Rc3 d4 Rf6 Qf3 Bg3 e1B Rd6 Qff2 Rf6 Qb2 Rd6 Be2 Rf6 Qf2 Rd6 Qhg1 Kh4 Qa1 Re6+ Kd2 Rf6 Nb4 Qb1 Nd3 Qc2+ Ke3 Bh7 Bh5 Rh6 Be2 Bg6 Qa4 Qcc1+ Nd2 Rb3 Qa6 Qd1 Rc1 Rc3 Qc4 Qc2 Nb3
1Q1nQq2/nq1b2R1/Pn1b1b2/1N1pnb2/N5NR/R4KBr/B2r1P2/1b4k1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 c4 Kf6 a4 Ke5 g4 Ke4 f6 b5 a5 e5 f7 h5 c5 b3 c6 b2 c7 d3+ Kd2 h3 g5 h2 a6 b4 g6 h4 g7 h3 Ra3 b3 Ne2 Kf3 Ra4 e4 Ke1 e3 Qd2 Nf6 g8Q Nc6 Qg5 Bd6 f8N Nd5 Rb4 Nb6 Ne6 Qf8 Ra4 Nd8 Qb4 d2+ Kd1 Rh6 Na3 b1B Ra5 b2 Rg1 h1B Ra4 h2 N2f4 Rh3 Qh4 Bf5 Qh6 b1N Nb5 Na3 Rg8 Nac4 Nd3 Ne5 Ra3 Bg2 Qb3 h1Q Qh8 Ra7 Rg7 e2+ Kc2 d1N Kd2 Rb7 Nec5 Nc3 Na4 Rb8 Qf7 Ra8 Qe8 e1B+ Kc2 Rb8 Bf4 Bd2 Bg3 Bg5 Qg8 Bf6 Kd2 Ra8 Nc1 Rb8 Bc4 Bf1 Ba2 Kg2 Ke3 Kg1 Nd3 Qb7 Kf4 Be2 Qb3 Bd1 Qb2 Bc2 Qb4 Bb1 Qb2 Nec6+ Ne5 Ra8 Ke3 Rb8 Ng4 Ne5 Nd4 Nb5 Kf4 Na7 Nb5 Bde7 Ke3 d5 Qb3 Nec4+ Kf3 Bcd7 c8R Bd6 Rc7 Rc8 Rh7 Rb8 Rh4 Ne5+ Kf4 Bc8 Rg7 Bcd7 Qb2 Rc8 Ke3 Rc2 Kf4 Ng6+ Kf3 Rd2 Qbe5 Nf7 Qb8 Nd8 Qe8 Ne5+
7q/b3qbN1/PprR1q1q/Bb5b/3RBQ1N/3Q2nk/K1qr1P2/1B2Q1n1 w - - 0 1 illegal: No possible last move
8/1rk1b1KN/pR2bBn1/1R4P1/3PQ1Q1/Nqrr1B2/nB1Nqr1q/4q2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 e4 c5 g4 h5 b4 c3 d4 a6 e5 h3 g5 c4 b6 h2 b7 h4 e6+ Kc7 e7 c2 e8Q h3 b5 c3 Qd3 Ne7 Be2 Qd5+ Qe4 Qb3 Ra4 Ra7 Rc4+ Nbc6 b8N Be6 Bd2 c1Q Na3 c2+ Bc3 Rb7 Rc5 Qe1 Qh5 c1R Qg4 Ng6 Nd7 Be7 Nf6 Rhb8 Rd5 Nb4 Nh7 Na2 Rd6 Rc8 Rd5 Rd1 b6+ Kb8 Rb5 Rd3+ Qe3 Rc6 Bb2 Rcc3 Bd1 Rbc7 b7 Rd7 Ne2 Kc7 Rf1 h1R Nc1 h2 b8B+ Kd8 Be5 Rb7 Bf6 Kc7 Kg2 f3+ Kh3 f4 Qe4 f2+ Bf3 Qe2 Rd1 f1R Rb6 Qb4 Nb3 Rf2 Rb1 Qc4 Nd2 Qb3 Qgf5 Qe1 Kg4 Qe2 Kh5 Qe1 Be2 f3 Kh6 Rg1 Qb5 h1Q+ Kg7 Qh2 Qbf5 Rh1 Qeg4 Rg2 Qd5 f2 Bf3 f1Q Qde4 Rf2 Bc1 Qc2 R1b5 Qfe2 Bb2 Qb3
1R2nRb1/q1Q5/p3r2K/Pr1b1Rn1/r1B1r2k/q2rqQ2/P2BN3/B4q1N w - - 0 1 legal: proof: f4 e5 g4 exf4 d4 c5 g5 cxd4 g6 Ba3 bxa3 hxg6 a4 g5 a5 g4 Kd2 Ke7 h4 Kf6 e4 d5 c4 g5 h5 b5 h6 f3 c5 d3 Ke3 a6 h7 b4 c6 f2 c7 d2 Na3 b3 Rh3 b2 Qe2 d1R Nc4 b1R Nb6 g3 Bd2 d4+ Kf3 d3 Qe1 g2 Ke3 g4 Kf4 g3 Bc1 d2 Bb5 f1Q+ Qf2 Qf8 Rh1 Nc6 Nh3 g1Q Ng5 g2 Ne6 Qa3 Ng7 Ne5 Be8 Nf3 Qg3 Rb5 Na4 Re1 Rb1 d1R Bd2 Ng5+ Qf3 Qa7 Rh5 g1Q Nf5 Bb7 c8Q Bd5 Nc3 Qge3+ Kg4 Kg6 e5 Nf6+ Kh4 Rab8 e6 R8b6 e7 Re6 Qc7 Re2 Bc6 Ne8 Ng3 f5 Nh1 f4 Rb3 Rf8 h8B Rf5 Bd7 Rb4 Bb5 Ra4 Bc4 Ree1 Qf2 f3 Rb8 Rfe5 Qg3 f2 Ne2 Re4+ Qgf4 Rb1 Bd4 Rb5 Ba1 Reb1 Kg4 R1b3 Kh4 Rd3 Kg4 Nh7 Rf5 Ng5 Kh4 Qd1 Qg4 f1B Qgf4 Bg2 Qg4 Qf1 Qgf4 Ng7 e8R Bh3 Ref8 Ne8 R5f7 Bg2 Kg4 Kh6 Kf5 Kh5 Qf3+ Kh4 Rf6 Re7 Kg6 Bg8 Kh6 R4e6 Qf5 Bd5 Qf3 Re4 Rf5 R7e6+
1n2Bq1N/3r3P/r4b1K/2kqnR2/1rb2N1B/1Pp2QnB/N3Q3/2rn2Rn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 h4 Kd6 d4 c5 e4 g5 b3 a5 d5 f5 h5 a4 h6 g3+ Kf3 a3 b6 g2 b7 g4+ Ke2 a2 h7 c3 Be3 c2 Bf2 c1R Qd3 g3 Kf3 c4 Be3 c3 Qc2 Ne7 Bc4 Ng6 Bd2 Kc5 d6 Be6 e5 Be7 d7 Ra7 Be1 Qf8 d8N Bf6 Ba6 Bc4 Nh3 g1Q e6 g2 e7 Qd4 e8B Qd5+ Qe4 g1R Nf7 Rg4 Na3 Rg8 Bg3 Rg7 Nh8 Rd7 Rf1 Rh4 Rb1 a1N Nc2 Ra8 Bb5 Ra6 Nb4 Nc2 Na2 Ne3 Rg1 Rg4 Bh4 Nd1 Rb2 Qe5 Qd3 Qd4 Rf2 Qd5+ Ke2 Ne5 Bc6 Qe6 Bg2 Qd5 Rf3 Nb2 Rf2 f3+ Ke3 Rf4 Rff1 f2 Qe2 Rd4 Be4 Nd1+ Kf4 Bb5 Qf3 Rb4 Qe2 Bc4 Bg2 Bg7 Kg5 f4 Kh5 f3 Nf4 Bf6 Bh3 Ne3 Rg5 Nd1 Rfg1 f1N Rf5 f2 Qf3 Qfd6 Qe2 Ng3+ Kh6 f1N Qf3 Nh1 Qe2 Nbc6 b8Q Nfg3 Qa8 Nb8 Qb7 Qd2 Qbg2 Q2d5 Qgf3 Qf8#
b1rbB3/1N2b1pq/3nN3/2r1n2r/1b1BK1Br/1Q6/RPP1b1k1/Qq2Q2R w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 a4 bxa4 g4 hxg4 Bh3 f5 Bf1 fxe4 Kd2 Kf7 Ke3 Ke6 h4 Kf5 f4 d5 c6 e5 h5 a5 h6 d4+ Kd2 d3 Ke3 a3 c7 a2 h7 d2 Nc3 g3 Nb1 g2 Rh4 a4 Qe2 d1B Qd3 a3 Qe2 Qd3+ Kf2 e3+ Kf3 e4+ Kg3 Nd7 Nh3 g1R+ Bg2 Be7 Qd2 e2+ Kf2 e3+ Kf3 e1B+ Qe2 B1b4 Nc3 Nh6 Na4 Rh1 Nc5 Rh2 Ng5 Bb7+ Nce4 Rab8 c8B Ba8 Ne6 Ba5 Bd2 Bad8 Bc3 Rh1 Bd4 Ne5+ Kg3 Rh2 Qe1 Be2 N4c5 Qe4 Bd7 Rc8 Nb7 Qd3 Bh3+ Ke4 Rh5 Rc5 Bg4 Rh4 Kg2 Nf5 Be8 Rf8 h8Q Rg8 Rc1 a1Q Rh6 Qa2 Ra1 Qb1 Qh7 Rf8 Qg8 a2 Rh7 Rf6 Rh8 Rfh6 Rh7 R6h5 Rh6 Nd6 f5 Rc8 f6 Nf5 f7 Rc5 f8Q Rc8 Bh3 Rc5 Kg1 Kf3 Qf6 Bd1 Qg5 e2 Qc1 Qe4 Qb4 e1B Bg4+ Kg3 Kf1 Bc3 Qa4 Kh2 Kf2 Be2 Qe1 Bb4 Qa6 Ng3 Qa3 Qh7 Ke3 Nf5+ Ke4 Rc8 Nc7 Kg2 Qgb3 Qc1 Ne6 Rc5 Rb1 a1R Qaa4 Ra3 Ra1 Qb1 Ra2 Rc8 Qa6 Ra5 Kf4 Rh1 Ra3 Rac5 Ke4 Rg5 Qa7 Rh3 Rh4 Rh5 Ra6 Rd3 Rh1 Rdh3 Ra1 R3h4 Qaa2 Qd1 Qb1 Qc1 Ra2 Qd1 Qa1 Qc1 Qd5 Qb1 Qb3 Nd6+
3nrb1Q/KBr2kpq/B2R4/6qr/2q2r1P/rQ1n1R2/1N1B2Pq/2R3Nb w - - 0 1 illegal: No proof kernel
rr2q2q/rR3qpP/nQ6/6k1/1r1N1b1N/q3Q2b/P1RB2K1/n1q1BQ1B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 d4 Kf6 h4 c5 e4 b5 d6 g3+ Kf3 b3 d5 c4 d7 c3 d6 g2 h5 b2 e5+ Kg5 e6 f5 e7 c2 e8Q b4 h6 b3 h7 Na6 Kf2 Nh6 Qd3 Ra7 Qee4 Qe8 Qee3 Ng4+ Kf3 Rg8 Qe5 Ne3 Nd2 b1R Be2 b2 Kf2 f3 Qh2 f4 d8B+ Be7 Qc3 Bh3 d7 Rh8 Ba5 Bd6 Nb3 Rf8 Bd2 c1Q Nd4 Nc2 Bd3 Rg8 Nge2 g1R Bc4 Rg4 Qg2 Bc7 Rd1 Bb8 Kf1 f2 Nf5 Bd6 Be1 Qce3 Qd2 Qa3 Ned4 Rh8 Qe3 Rf8 Bd5 Be5 Ke2 f1Q+ Kd2 Qb5 Rc1 Qbb8 Ke2 Rh8 Kf2 Qbc8 Qe2 f3 Bad2+ Bf4 Qe3 Qcd8 Kg1 f2+ Kh1 Rg8 Nh4 f1Q+ Qgg1 Qc4 Qf1 Rh8 Bb7 Qcf7 Ba8 Qc8 d8Q+ Qee7 Qc7 Rg3 Qe4 Rb3 Qe3 Re8 Ng2 Qef8 Qb8 Qh8 Nh4 Qce6 Bg2 Rbb7 Qd6 Rea8 Kg1 Qee8 Bh1 Rbb8 Qde6 Ncb4 Rc7 Nc2 Rb7 Rd1 Qd6 b1Q Qb6 Qbb2 Rc1 Na1 Rc8 Rb1 Rc2 Qc1 Kf2 Rb4 Kf3 Be6 Kg2 Bh3+
1q1Q4/QbR1PBk1/4rN1r/K3n1BB/1R3qP1/q5R1/1pr3rn/bq1N2r1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 b5 Kd2 h5 a4 f5 e4 Kf7 e5 c5 e6+ Kg7 a5 f3 e7 h3 g3 h4 d6 f4 d7 h2 d5 c4 a6 f2 a7 b3 Kc3 b4+ Kd2 b2 d6 h3 Ra2 f3 Qe2 b3 Kc3 Nc6 Bf4 Ne5 Kb4 c3 Kb5 c2 Nc3 b1Q Qd3 c1R Nd1 Rc2 Ra4 Bb7 Be2 f1R Qe3 f2 Bg5 Re1 Nf3 f1Q Nd2 Nh6 Rb4 Nhg4 Rg1 h1R Ne4 h2 Nf6 Qb8 d8Q Qf4 d7 Rh6 Ka5 Qc1 Rg2 Rhg1 Bc4 h1Q Bf7 Nh2 g4 Rh5 Rg3 Rh6 Bh5 Qhf3 Qd4 Qb1 Qa1 Ree2 Qa2 Reg2 Qa1 Qd6 Qa3 Rac8 a8B Qb8 Qa1 Q3e3 Qd4 R8c6 Qa7 Bc8 Bb7 Re6 Bd5 Bb7 Bc4 Rd6 Bcf7 Re6 Qdb6 Qec1 d8R Qcb2 Rd7 Qa3+ Kb5 Kh8 Rc7 Bg7 Nh7 Bf6 Qd6 Kg7 Qd8 Nc6 Kb6 Ba1 Nf6 b2 Kb5 Qaa2 Kb6 Ne5+ Kb5 Qb3 Ka5 Qa3+
5b2/QqRqPbR1/R3qQ2/K1r1B2b/P1q1n3/N1pBbr2/1k3N2/n1b1Q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Ke7 Kd2 Kd6 h4 b5 a4 f5 e4 c5 h5 g5 h6 f3 h7 c4 Bh3 c3+ Kc2 b3+ Kd3 b4 Kc4 g3 Kb5 g4 Bg2 f2 Bh3 f1Q+ Qd3 f4 Ra3 g2 Ne2 g1B Qd1 f3 Nd2 b2 Rh2 b1B Qc2 g3 Qa2 g2 Rb3 f2 Qa1 Nc6 Bf5 Na5 Rh6+ Be6 Rg6 Bh2 Rg7 Qe1 Nf4 g1B Nd3 f1Q Rc7 Ba2 Nb1 Ra6 Na3 Bf4 Rg7 Bf7 e5+ Ke7 e6 Kd6 e7 Bh5 Bd2 Qe6 Qe1 Nf6 Be4 Rg8 h8Q Bge3 Rb1 b3 Bg6 Qf3 Nf2 b2 Bd3 Ne4 Qh6 Qg2 Qf6 Nb3 Rd1 b1Q Bc1 Kd7 d6 Qgg4 d5 Rc6 Kb4 Qc8 Kb5 Na1+ Ka5 Qb3 Bd2 Bh6 Rb1 Qbb8 Rb6 Qbb7 Ra6 Qd1 Bc1 Qdb3 Bd2 Qc4 Bc1 Bc5 Bf4 Be3 Be5 Qe8 Rf7 Rg3 Rg7 Rf3 Bd4 Kc8 d7+ Kc7 d8R Q8d7 Rc8+ Kd6 Be5+ Kc5 d6 Bc1 Rc7 Bhe3 Bf1 Kd5 Bd3 Qcb3 Bh2 Qf7 Nb5 Qh3 Bb1 Kc4 Be5 Qd1 Na3+ Kb3 Bc2+ Kb2 Bb1 Qd4 Bd3 Bd5 Rc8 Qc4 d7 Qa7 d8Q Qb7 Qdd6 Qhd7 Qc5 Be6 Rc7 Qg6 Qa7 Bf7 Qg5 Qge6 Qf6 Rc5+
R1b1q1kB/1B2pn2/1n1Qb3/2PN1r2/n1QN4/q4n1P/K1QRb1rb/5bN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 c4 b5 Kc2 d5 Kb2 g5 a4 d3 f4 b3 a5 b4 f6 g3 a6 d4 c5 g2 f5 g4 h3 d2 a7 g3 Nc3 d3 Ra6 Nd7 Nce2 Nh6 Ka1 b2+ Kb1 Qe8 Rh2 Nb6 Ra5 Rg8 Nf3 g1N Nh4 g2 Ka2 b1B+ Kb3 Nf3 Ng1 Ba2+ Kb2 b3 Qc2 d1B Ng6 d2 Nf4 Rg7 Ba6 Be2 Nd5 d1B Bb7 Bf1 Bd2 Bde2 Bc3 Rb8 a8Q Kg8 Qa6 Nf7 Qc4 Rg5 Ra8 Bh6 Ka3 b2 Bd4 b1N+ Kb2 Nc3 Ka3 Nd8 f7+ Kh7 f8N+ Kg8 f6 Nca4 Be5 Rf5 Ne6 Bf4 Nd4 Bg3 Rh1 Bh2 f7+ Kh7 f8Q Nf7 Qh6+ Kg8 Bc6 Rb7 Bh8 Rd7 Qf4 Rd6 Bb7 Rg6 Qd6 Rg4 Qa6 Bac4 Nc3 B4e6 Qc4 Rgg5 Ka2 Bd1 Nge2 g1Q Nd5 Qe3 Rg1 Rg4 Rg2 Qc3 Rf2 Rg2 Ng1 Qd3 Rd2 Bde2 Nf4 Qc3 Nd5 Qa3+
1R6/Q1bpn1Q1/BrPPNK2/k1b1b1B1/1r6/1n5q/4nRRq/nNN3nb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 f5 h4 a5 d4 g5 c4 b3 e4 g3+ Kf3 g2 h5 b2 b6 g4+ Ke2 a4 Kd3 f3 c5 g3 d5 f2 Kd4 f4 Ke5 a3 b7 a2 h6 f3 h7 Na6 b8N Qc7+ Kf5 Kd8 e5 Bb7 e6 Ne7+ Kg5 Nb4 Bc4 f1N Rh2 f2 Na3 b1N Qh5 Nfd2 Qe2 f1Q Qd3 Ra4 Qd4 Nc3 Rb1 a1B Ne2 g1N Ba6 g2 Rb2 Nc2 Nb1 Nb3 Nc6+ Kc8 Qf2 Rb4 Nd8 Bg7 Bd2 Be5 Nc1 Nce2 Qd4 Rf8 h8Q Rf6 Qg7 Qb8 Qe3 Bc7 Ra2 Bae5 Qf2 Nf5 e7 Rfb6 e8R Nca1 d6 Ne7 Qd4 Qf3 Rf8 Qh3 Rf2 Qa8 Ne6 Kb8 Bf4 Ka7 Rb2 Be4 c6 Qah8 Rh1 Qh2 Be3 Q8h3 Ra2 Bf4+ Kf6 Be5+ Kf7 Nc3 Qd2 Qh4 Bf1+ Na4 Rf5 Q2g3 Bg5 Qhg4 Rh6 Q4h3 Rh8 Qgh2 Rb8 Bd5 Rc2 Nc3 Be2 Rc4 Bf1 Ka6 Ra2+ Kb5 Qb2 Be4 Qa3 Bf3 Re2 Rb4 Qa7 Bd5 Qb7 Ka5 Ra2+ Ra4 Ba6 Be4 Rd2 Rab4 Rf3 Bd5 Rg3 Be4 Rf2 Nce2 Qa7 Nf3 Rf1 g1B Rg4 Be3 Rf2 Nfg1 Rg3 Bh1 Rgg2 Bg3 Kf6 Bc5 Qf8 Bf4 Qg7 Be5+
1n2nr2/q1PRrq1Q/1N2r1b1/2R2rK1/P4rn1/p5bQ/1nB2B1B/1N2N2k w - - 0 1 illegal: No proof kernel
1Qr2bb1/KP1Q1NB1/4Bbq1/3qbRp1/rr3R1N/1rN3P1/n1n2Rbk/8 w - - 0 1 illegal: No possible last move, all moves rejected
rR4rb/bpb2n1b/3Q2NP/3Q1n1B/R3Rqqn/4n2k/Nb1BK2P/1Q6 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 f4 Kf7 a4 Kf6 c4 Kf5 h6 d5 c5 e5 c6 g5 a5 b3 c7 d3 a6 d4 a7 e3 Ra5 d2+ Ke2 Kg4 f5 e4 f6 b2 f7 Ba3 f8R Nd7 Qb3 d1N Rff5 d3+ Ke1 e2 Bg2 Ne3 Rac5 d2+ Kf2 e1B+ Ke2 Bg3 Rf7 Qf8 Rg7 Ne5 Rc2 Bf5 c8Q Ne7 Rg6 Rg8 Qbc3 Nf7 Q3c4 Bc7 Re6 Bh7 Qa2 N7f5 Nc3 b1N Qb8 Bb2 Qd5 Qb4 Nf3 d1Q+ Kf2 Qd6 Nh4 Qf4+ Bf3+ Kh3 Na2 g4 Ng6 Nd2 Qbd8 Qg1+ Ke2 g3 Q8d6 g2 Bh5 Nf3 Bd2 N3h4 Rc6 Qb1 Re1 g1B Rc4 Bh8 Ra4 Qb4 Re8 Qd4 Bf3 Qg4 Rd8 Qe5 Rc8 Qef4 Rb8 Nd1 Ra6 Qgg3 Nb4 Bf2 Bh5 Qgg4+ Kf1 Bb2 Rc8 Rb8 a8Q e3 Qa7 Ra8 Rb8 Rd8 Qac5 Rf8 Ra4 Rg8 Na2 Bh8 Qc1 Bb2 Re2 Bg1+ Rf2 e2+ Ke1 Bh8 Rg2 Ba7 Qb1 Bb2 Be3 Bh8 Kd2 e1B+ Kd3 Bec3 Re2 Ng7 Bd2 Bb2 Ree8 Ngf5 Ree4 Qgg5 Ke2 Nde3 Ne5 Qgg3 Ng6 Qgg4+
n2Q1R2/1p1nn1NK/1P1P3R/N4R2/2rr4/r1Q1b3/k2rBNn1/1qbqB1r1 w - - 0 1 illegal: No proof kernel
5N2/1r2n1Q1/2N1n3/1B2B2q/4bKbk/PRQ2P1q/QpR4N/qr1bn1bn w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 d4 Kg5 g4 b5 d6 h5 d7 e5 a3 c5 d5 b3 d6 c4 Qd4 h3 Qd1 h2 Qd3 b2 Bd2 h4 Ra2 h3 Bc1 c3 Qd2 b4 Qd3 c2 Qc3 b3 Ne2 Kh4 g5 Ra7 g6 Rb7 g7 Qe8 d8N Qh5 d7 Bc5+ Qd4 Nc6 Bd2 c1Q Bg2 Qf1 Ng3 Nge7 Ne6 Nd8 Nf8 Ne6 Nc3 b1B d8Q Bc2 g8Q Bd1 Rc2 b2 Qc7 Ba7 Rg1 h1N Na2 h2 Bc3 Rh7 Bf3 Qh3 Nb4 Rf7 Re1 Rg7 Nf1 Rg1 Nc6 Bd7 Qc5 Bc8 Kd2 e3+ Kd3 e2 Ke3 e4 Be5 Bb6 Qg7 Ba7 Qd7 Bb6 Qd5 Bd7 Qa2 Bc8 Kd2 e3+ Kd3 Ba7 Qc3 Bc5 Ke4 Bb6 Nd2 Bc5 Rf1 e1Q Be2 Bd4 Bb5 e2 Bc7 Nd8 Be5 Bg4 Nc4 Ne6 Ne3 Qd2 Re1 Qc1 Nf1 Qa1 Rd2 Bb3 Rc2 Bb6 Rd1 e1N Rd3 Bd4 Rcd2 Bbd1 Rc2 Nd8 Kf4 Bb6 Qd2 Ba7 Rb3 Ne6+ Ke4 Bb6 Qc3 Nf3 Bd6 Be2 Nd2 Rb1 Nf1 Ne1 Be5 Bd1 Qd4 Ng3+ Ke3 h1B Nh2 Be4 f3 Nh1 Qc5 Ng5 Kf4 Ba7 Qb4 Bg1 Qc3 Ne6+
1r5R/qRbnN1K1/1qr4N/1b3NBk/1qnRB3/pP1Q3P/2n5/1Qr3nq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 e4 Kf7 c4 Kg6 b6 a5 b3 d5 b7 g3+ Kf3 d3 e5 a4 e6 d2 c5 g2 e7 a3 e8N d4 h3 d3 c6 Qb6 c7 Nf6 Rh2 Rh6 Ra2 Nc6 b8R Nb4 Ne2 Ba6 c8Q Qa7 Nd6 g1Q Nb7 Kh5 Nec3 g5 Qc4 Bd6 Bg2 Bb5 Qc2 d1Q+ Ne2 d2 Rc8 Qgb6 Rd8 Rb8 Rh8 Qh1 Nd4 d1R Nc3 Nd7 Nd8 Qe1 Be3 Rc1 Qb1 Qh4 Rc2 g4+ Ke2 g3 Kf3 Qe7 Nd5 Be5 Bh1 g2 Nf7 Bd6 Rc3 Nc2 Qf1 Be5 Rc7 Qb4 Rb7 Bd6 Ne7 Bc7 Re8 Rc6 Nh6 Qe1 Rh8 Qb4 Kf2 f3 Bg5 g1N Qe2 Na1 Ke3 f4+ Ke4 Nc2 Kf5 Ra8 Qd3 Rb8 Bg2 f2 Qe3 f3 Bh1 f1N Rd2 f2 Be4 Ne2 Rd3 Nd2 Qg3 Bd6 Ke6 f1Q Ndf5 Qh1 Kf7 Nc4 Rd4 Bc7 Kg7 Ng1 Qe3 Qg2 Qd3 Qh1
2N1bq1q/r1q1nr2/3N3R/BR5B/4PP1n/1np3QN/5Q1b/Knk1rR1q w - - 0 1 illegal: No proof kernel
K3B2q/1nrr1QRb/5nr1/1n2qR1N/1p3r2/kq3P2/Pbq3B1/2BN1N1Q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 b5 g5 c5+ Ke3 e5 d4 b3 f3 c4 g6 c3 g7 b2 Qd2 c2 Qc3 h3 Bg2 h4 Ne2 h2 Re1 h1R Rf1 h3 Ng1 h2 Ne2 Qc7 Qe1 Ra4 Ng1 Bf5 Nd2 b1Q Nh3 Nc6 Qg3 Nd8 Rg1 Bh7 Qh4 Nf6 g8B Bg7 Nf2 Nb7 Re1 Rg1 Bf7 h1Q Nf1 Rd8 Nd1 Rd7 Be8 Rc4 Re2 b4 Rd2 Qb3+ Rd3 Qc8 Qh5 Kc7 d6+ Kb6 d5 Ka5 Qf7 Ka4 Rb1 Qh2 Rb2 Ka3 Rc3 Re7 d7 Qh3 d8N Rd7 d6 Bh8 Bh1 Rg6 Ne6 Qh2 Nf4 Bg7 Bd2 c1R Bg2 Rcc7 Rd3 R1c4 Bc1 Qd8 Nh5 Qb8 Ke2 e3 Rd5 Rf4 Rc5 e4 Rf5 Ng4 Rd2+ Bb2 Rdd5 Qc8 Rde5 Nf6 Re7 Rd8 d7 Qh3 Ke1 e2 Kf2 e1N Ke2 Nc2 Kf2 Qa4 Ke2 Nd4+ Kf2 Ne2 Ke3 Nc3 Kd4 e3+ Ke5 e2 Ke6 Na5 Ke5 e1Q+ Kd6 Nc6 Kc5 Nb5 Kb6 Qeg3 Nf2 Na5 Nd1 Qb8+ Ka6 Nb7+ Kb6 Qb3 Ka6 Rdc8 d8Q Qf2 Qd3 Qh2 Qb1 Rd7 Qa1 Qe5 Qb1 Nd4 Ka7 Rcc7 Ka8 Qh3 Qc4 Nb5 Rg7 Qfe2 Qf7 Qh4 Qe4 Qec2 Qe1 Qg4 Qh4 Qg5 Qh1 Qh6 Rg8 Qf8 Rg7 Qh8
Qn6/1nqQ4/b5kb/1rr1qN2/PqNb1n2/3RN1b1/1R2QP1p/B1KB3q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kf7 a4 h5 d4 e5 Kd2 c5 g5 b5 d6 b3 d7 b4 d5 e3+ Ke2 e4 d6 h3 Nd2 h4 Bg2 h2 Qc2 b2 Kd1 b1Q Nc4 e2+ Kd2 e1B+ Kd1 e3 Ra3 b3 Qe2 h3 Bc6 b2 Rb3 Nh6 Bg2 Bc3 Qe1 Qe4 Na3 b1Q Rb7 c4 Ne2 Qb4 Rb6 Qc7 d8Q Ra5 d7 Ba6 Ng3 Bd6 Bf3 Rc5 Nf5 Bg3 Qe2 Bd4 Bb2 c3 Kc1 c2 Nc4 Qee5 Rd1 h1Q Ba1 h2 Qc8 Rg8 d8Q Rg6 Rb7 Rb6 Qcd7+ Kg6 Bg4 Nf7 Qf8 Qg2 Rd3 Nd6 Qfc8 Rbb5 Rb6 Ra5 Qb7 Qgc6 Qa8 Nb7 Rb5 Qa3+ Rb2 Qh1+ Qe1 e2 Nfe3 Rab5 Qd1 e1N Qe2 Qb4 Bf3 Qg7 Bh5+ Kh7 g6+ Kh6 Bf3 Qge5 g7 Kg6 g8N Ng2+ Nf1 Qb3 Nh6 Nf4 Nf5 Qa3 Qd2 Qb3 Bd1 Qb4 Qe2 Qa3 Kd2 c1B+ Kc2 Qb4 N1e3 Nh3 Ng2 Bcf4 Nge3 Bh6 Kc1 Nf4
r1Nknnrb/1b2RRq1/5bN1/r2r1Q1p/NK3R2/B4n2/1P3P2/1Bq3nQ w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 h5 g4 a5 c4 d5 b6 e5 b7 a4 g5 a3 c5 e3+ Kd3 h3 g6 a2 g7 e4+ Kc2 e2 Kb3 e1B c6 d3 c7 h2 Qc2 d2 Qd3 d1R Be2 d4 Nh3 e3 Qd2 d3 Ng5 Qd4 Nh3 Be7 Qb4 Nf6 Bd2 Nbd7 b8Q Rg8 Nf4 Nf8 Qc5 Bd8 Ng6 Bb7 Bg4 e2 Bb4 Bc3 c8N e1N Qf5 d2 Ba3 Nf3 Re1+ Be7 Re3 h1Q Qh2 Kd8 Bh3 Qg1 Qh1 Ne8 Re1 Bg5 Re7 Bf6 Bf1 Qc5 Bd3 Bce5 Be4 Qc1 Nc3 Qg4 Na4 Qg3 Rb1 a1R Kb4 Qh4 Nab6 Qg5 Re6 Nh2 Nh4 Qc5+ Kb3 Rh8 g8R Be7 Rg7 Rg8 Bb4 R1a5 Ra1 Qc1 Rf7 Bh8 Bb1 Qg7 Ra4 Bf6 Bc5 Re1 Re3 d1N Ng6 Nf3 Ba3 Nc3 Ree7 Ree5 Rf4 Ne2 Kb4 Neg1 Na4 Red5
2B5/3n2r1/b2N2Nk/2r1R2p/1qbq1P2/bN3nQP/BR2n2K/n1Q2qRb w - - 0 1 legal: proof: e4 c5 a4 g5 d4 cxd4 f3 f5 Kd2 b5 axb5 fxe4 Ke1 g4 Be3 g3 Bf2 gxf2+ Ke2 Nc6 Kd2 Nb8 b4 Kf7 Ke2 Kg7 c4 d5 g4 h5 b6 e5 g5 a5 b7 d3+ Ke3 d4+ Kd2 e3+ Kc1 e2 Kd2 e1N g6 a4 h3 a3 c5 e4 b5 a2 c6 Nd7 b8Q Ngf6 c7 Ra7 b6 Kh6 b7 Nd5 g7 Nf4 g8B Ba3 Qc1 e3+ Kd1 d2 Ne2 Ra5 Rg1 Rh7 Rg5 Rb5 Re5 Rg7 Bg2 f1Q Bc4 Ne6 Nf4 Rc5 Ng6 Nf4 Be6 Ne2 f4 Qh1 Bgd5 Qf1 Qa8 Qh8 b8R Ba6 c8N Bc4 Rb2 Nf3+ Kc2 Qd8 Nd6 Ba6+ Bc4 d1B+ Kd3 Bb3 Ke4 d3 Nd2 Qh8 Bcd5 Bbc4 Nb3 d2 Qg8 d1B Rab1 a1N Bb7 Ned4 Bc8 e2 Bf7 Bc2+ Ke3 Be4 Bd5 Qh1 Kf2 Qf1+ Kg3 e1Q+ Rf2 Nh4 Kh2 Qb4 Rbb2 Bf3 Rg2 Ne2 Rg1 Bg2 Qe6 Bf3 Qg4 Bh1 Qg3 Qd8 Be4 Qf6 Bb1 Qd8 Ba2 Qf6 Rg5 Qd4 Re5 Nf3+
1nQq3k/5bbq/QrNq1Bq1/4nP2/4RBrp/1B5Q/r6P/b2NbRK1 w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 c4 Kf7 d4 g5 f4 Kg7 Kf2 a5 d5 e5 b6 h5 c5 g3+ Kg2 b3 b7 a4 c6 h4 c7 b2 d6 e3 d7 a3 Qh5 e4 Bd3 a2 Be2 g4 Bd3 e2 Qb5 e1B Bc2 e3 Ne2 Rh6 Ba4 Ne7 Qc4 Rb6 Nec3 e2 Nd5 Nec6 Qc2 Ne5 Qd3 Kh8 Rg1 Bg7 Nbc3 b1Q Qa6 Qh7 f5 Bf2 Kh1 e1Q Bb3 Qd2 Ne7 Qd6 Nc6 Ra7 Rb1 a1B Bf4 Be1 Rf1 g2+ Kg1 Bg3 Nd1 Ra8 Qb5 Ra2 Rb2 Q8f6 d8B Be6 c8Q Bf7 Re2 Qg5 Bc7+ Qgd8 Re4 Qdg8 Qa6 Nbd7 Re3 Be1 Nd8 Bd2 Kf2 g1R Ree1 g3+ Ke2 g2 Kf2 Qf6 Bd6 Qe8 Bf8 Qd6 Be7 Qf8 Qc3 Qfg8 Nc6 Qd8 Qh3 Bdc3+ Re2 Bb4 b8Q Be1+ Ke3 Bf2+ Ke4 Be1 Qbc8 Nb8 Ke3 Rh1 Rff2 g1Q Bf6 Qgg6 Rf3 Rg1 Rf1 Bec3 Kf2 Rg4 Rg1 Bd2 Re4 Be1+ Kf1 Bg3 Rh1 Ra5 Kg2 Ra3 Rf1 Ra2+ Kg1 Be1+
Q7/1R2q3/1KR1R3/nNBP4/1bBNn2N/rp2Q2b/1b1P1rrq/k1qbr3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 g4 Kd6 e4 Kc5 a4 h5 e5 b5 e6 f5 e7 f3 Ke3 f4+ Ke4 b3 e8Q Kb4 Kd4 c5+ Ke5 b2 g5 c4 Kd4 h3 a5 h2 a6 f2 a7 h4 g6 c3 g7 c2 Nh3 Kb3 Bg2 f1R Ra4 f3 Nc3 b1B Ng1 h3 Qe4 b4 Ra5 f2 Rb5 Re1 Qe8 f1R Ba3 Qe7 Rb7 Nf6 g8N Rf2 Nf3 Ne4 Qe2 c1B Nh6 Bc2 Qd8 Bd1 Nb5 Ka2 Bf1 b3 Bc5 Ka1 Nf5 Rg8 Qe3 Rgg2 N3h4 Nc6+ Kc4 Ba3 Nfd4 Bb2 Rg1 h1Q Qe8 Rg8 Rg6 h2 Re6 Na5+ Kb4 Qg1 Bc4 h1Q Rc6 Qhh2 Qd8 Rb8 a8R Rgg2 Raa6 Bh3 Re6 Ra8 Rac6 Ra6 Qa8 Ra7 Nc7 Qf1 Kb5 Qfh1 Kb6 Qf1 Bb5 Qc4 Ba6 Qc1 Bc4 Qg7 Ba3 Bb4 Ncb5 Qe7 Rf6 B4c3 Bc5 Bb4 Rce6 Nc6 Rh6 Ra3 Rhf6 Na5 Rc6 Rg5 Rfe6 Rgg2
3r1BKQ/Nbr1RQ2/2rRR3/q1P1nN1p/nPn3B1/3qbr1b/Nk6/6b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 c3 a4 g6 a3 b7 a2 g7 f3 Qc2 f4 Qh2 Kb3 c4 h3 c5 d2 Nc3 d1R Bb2 f2 Bc1 d3 Bb2 f3 Rb1 a1B Qf4 h2 Rc1 d2 Qf5 Qa5 Qg6 Ra7 Nge2 Nh6 Kf6 Ng4+ Kf7 Nc6 g8Q Ne3 e5 Bh6 e6 Nc4 e7 Bh3 e8R Be3 Na2 Rh6 Bg7 Bad4 Re7 Kb2 b8N Rc7 Bf8 N6e5+ Kg7 Be6 Rg1 h1B Nc6 Bh3 Q6f7 Rf6 Bg2 f1R Ng3 f2 Na7 Rfc6 Nf5 Bf4 Nc8 Nf3+ Re5 Rd6 Ra1 Rd8 Qe7 Rde1 Qh7 d1N Qh8 Nc3 Kg8 Na4 Na7 Re2 Rd5 Re6 Re1 Bg5 Rd7 Rd6 Re6 Nfe5 Be4 B1g2 Bc2 Bb7 Qf7 Rdc6 Rde7 Bf4 Rh1 Bh2 Rg1 Be3 Rg4 Bg1 Rd4 Ra1 Rd3 f1Q Rdd6 Qd3 Bd1 Rc1 Be2 Rf1 Bg4 Rf3
R4N2/3b1n1b/1qkr4/2p2n1N/rnP1rQ1P/1B2rB2/3NR2b/2QQbK1q w - - 0 1 legal: proof: e4 d5 g4 dxe4 f4 b5 a4 g5 axb5 h6 b3 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd4 g6 Qd8 Bg5 hxg5 h4 Kd7 c4 e5 d4 f5 b6 a5 g7 f3 b7 f2+ Ke2 g4 d5 g3 b4 f4 b5 e3 d6 e4 b6 a4 Qd4 a3 Nf3 a2 Ng5 f3+ Kd1 e2+ Kd2 e1R Nh7 e3+ Kd3 g2 Qf4 g1B Ng5 e2 Ne6 Na6 b8Q Nb4+ Kd2 Kc6 d7 Rh6 b7 Ra4 Bg2 f1B Rh2 Bd6 Qe3 Bg3 Nf4 Qf6 d8Q Bd7 Qa3 Rg6 Qe3 Nh6 g8B Nf7 Nh5 Rh6 Bh1 Bg2 Qg5 f2 Bh7 Be4 Bf3 Qb2+ Ke3 Rd6 Nd2 f1Q+ Rf2 Qh3 Qf4 Qh1 Qa7 Qf6 Qd4 Qh6 Qb2 Qe6 Qc1 Qh6 Rb1 a1N Bg6 Nb3 Ra1 Nd4 b8N+ Kb7 Bf5 c6 B5g4 Bh7 Bf5 Qg6 Bc2 Qf6 Bb3 Nf5+ Ke4 c5 Ra3 Be8 Nd7 Kc6 Nf8 Bd7 Rg2 Rf1 Ra2 e1R+ Re2 Qg6 Qf6 Rf2 Qfa1 Rh2 Qd1 Rh3 Qac1 Qf6 Ra3 Qd8 Ra1 Qb6 Ra3 Nd5 Kd3 B3f2 Re8 Re4 Ra8 Be1 Ra2 Nfe3 Ke2 Nb4 Rc2 Nf5+ Kf1 Rg3 Nb1 Rh3 Re2 Rg3 Nd2 Rh3 Bg4 Rhe3 Bf3 Bh2+
r2BN1nq/R1Q3N1/1q1r1bK1/P1RP2p1/2bqr1q1/8/1Qb1Bk1B/3r2Rn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 e4 Kd4 a5 c5 d3 g5 d6 f5 e5 b5 d7 f3 Kg3 c4 e6 c3 e7 b3 e8Q f2 h5 b4 h6 f4+ Kh2 g3+ Kh3 b2 Kg4 g2 Kh5 f3 h7 c2 Bf4 c1R Bh2 b3 Ra2 Bg7 Bf4 Bf6 Ra3 Nc6 Bh2 Ne5 Bg3 Ke3 d4 Ba6 d5 Bc4 Qf7 Ng4 Nd2 b1B Ne4 Bc2 Nh3 g1Q Be2 f1R Bh2 f2 Nf4 Re1 Nd6 f1Q Ne6 Qfg2 Ng7 Kf2 Nde8 b2 Qd2 b1Q Rc3 Rcd1 Qc1 Qe4 Qb2 Qd4 Qe7 Q8b6 d8B Qa1 Qc7 Qg3 Rg1 Qgf4 Bf1 Re4 Kg6 Qf3 Be7 Rd8 Be2 Rd6 Bd8 Ne3 Rb3 Nf5 Rb5 Ng3 Rc5 Qg4 Qa7 Nh6 Qc7 Rg8 h8R Nh1 Rh7 Rf8 Ne6 Ng8 Rd7 Qa3 N6g7 Qah3 Qb8 Qh8 Ra7 Rf7 Qc8 Rc7 Qb8 Rc8 Qc7 Ra8
1BQ1B3/3r1Q2/nR3RKb/p1N1qN1b/r1n2P1q/br5r/N3bPk1/nR6 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 a5 f5 a6 f4 exf4 bxa6 Rh2 a5 Rh1 a4 Kd2 Kf7 Kd3 Ke6 Ke4 d5+ Kd3 Kf5 c4 h5 b4 e5 b5 a3 g3 h3 b6 e4+ Kc2 e3 Kd3 h4 b7 e2 c5 Kg4 c6 a2 c7 h2 Nf3 e1B Nc3 h3 Rg1 h1R Qb3 h2 Nh4 Qe7 Nf5 Kf3 g4 Qe5 g5 Nh6 g6 Nf7 g7 Nd6 g8Q Rh3 Nb5 Bh6 Be3 Na6 b8R Bb4 Qg6 Nc4 Nc3 Ba3 Rb1 a1N Na2 Bd7 c8N Be8 Qd6 Bh5 Rg6 Rg3 Be2+ Kg2 Rf6 Rh3 Qc6 Re1 Qc7 h1Q Nb6 Rf1 Rb2 Rb1 Nd7 Qh2 Bg4 Qg3 Qbb7 Qh4 Rbb6 Rb4 Qbc8 Rb2 Nc5 Rb3+ Ke2 d3+ Kd1 d4 Qf7 d2 Ke2 Rb4 Kd3 d1B R8b7 Ra4 Rb1 Rb8 R7b6 Qd6 Ke4 d3 Bd4 d2 Be5 Qe6 Be2 Rb7 Bd3 Bde2 Bc2 d1R Bb3 Ra5 Ba4 Rdd7 Bc6 Qe8 Bb5 Qh8 Bb8 Ra4 Bc6 Rdd3 Be8 Rbd7 Nd6 Rb3 Kf5 Bhf3 Kg6 Bg4 Re6 Qe5 Nf5 Bh5+ Kh7 Nb4 Rec6 a5 Rf6 Bhf3 Kg6 Na6 Ne4 Bg4 Nc5 Bh5+
nbnnK3/6NB/b3Q1RQ/pR5P/1nrq3k/r1B1q1R1/2Pb2r1/3Bb2N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Kf6 h4 d5 e4 g5 b6 g3+ Kf3 g2 h5 g4+ Kf2 Kg5 e5 f5 e6 g3+ Kf3 d3 b5 d4 e7 d2 e8B d3 b7 Nc6 b8Q Bb4 b6 Qd4 b7 Nd8 Bg6 Ne7 Qe1 d1Q+ Be2 d2 Qf2 Qe1 Rh2 d1R Ra2 Bd2 Qf1 Rg8 Nh3+ Kh4 Ra4 g1B Ra3 g2 Ba6 Bf2 Qe2 g1B Rg2 Bh2 Bb2 Qg1 Bc3 Bfe1 Ng5 Rg7 Rg3 Qge3+ Kg2 Rg8 Ne6 Rg7 Qd6 f3+ Kf1 f4 b8R f2 Kg2 f1N Rb5 Rg8 Bh7 Rg5 Ng7 f3+ Kh1 f2 Kg2 Rc5 Qh6 Rc4 Rg6 Bb8 Bb7 a5 Bf3 Ba6 Bg4 Nc8 Rab3 Qg5 Qe6 Ne3+ Kf3 f1N Ra3 Nd5 Rab3 Bdf4 Nd2 Ndb6 Ne4 Bfd2 Nf2 Ne3 Nh1 Ned5 Ra3 Nb4 Rb3 Qd6 Ra3 Ra1 Rb3 Rc7 Ke4 Ra3 Bd1 Qe3+ Kf5 Rc4 Kf6 Ra7 Be5 Na8 Bc3 Nb7 Kf7 Nd8+ Ke8 Qdd4 Rbg5 Rf7 Rg3 Rf2 Rb1 Rg2 Rb2 Nd5 Rb5 Nb4
Rbrnbn2/NB3b2/2b1qPQN/n3q1P1/1Bq4k/QR5p/n3rR2/3K2N1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kf6 f4 h5 c4 d5 f5 a5 b6 e5 b7 e3 c5 Kg5 f6 h3 c6 e4 c7 a4 b5 d3 b6 a3 Bb2 h2 Nh3+ Kh4 g5 a2 Bg2 e2 Bc1 d2+ Kf2 d4 Na3 d3 Nb5 e3+ Kf3 e1Q Bf1 e2 Ke3 Nh6 Bb2 Bd6 Na3 Be6 c8R Re8 Be5 Nf7 Nc4 Nd7 b8Q Nf8 b7 Qc7 Ng1 Nd8 Bd4 Bf7+ Ne5 Qc4 Qa4 d1B Bc5 d2 Rb1 a1N Qa3 Ba4 Bg2 Nb3 Bb4 Na5 Rb3 d1N+ Kf3 Re6 Ng4 Nc3 Nh6 Na2 Qa7 Re4 b8N Bae8 Nc6 Bb8 Qe3 Qa1 Na7 e1Q Qd3 Re2 Qb1 Qe5 Qg6 Qce6 Rc2 Qc1 Rd2 Qcc4 Rc2 Re1 Rf2 Re2 Bh3 Q6d6 Bc8 Qde6 Bb7 Bc7 Nh3 Rc8 Ra1 Bd6 Ng1 Bb8 Kg2 h1B+ Kf1 Bhc6 Nh3 Be4 Ng1 Rb2+ Ke1 Re2+ Kd1 Bh1 Qb1 Bhc6 Nf3+ Kg3 Qg6 h4 Ng1+ Re3 Rc3 h3 Rb3 Kh4 Qa4 Re2 Nb5 Nc1 Raa3 Qcf4 Ra1 Nc4 Qa2 Qfe4 Qb2 Q4f4 Ra8 Na5 Na7 Na2 Qa3 Qfc4
3Qr1q1/b1Bbn2Q/N1R1qp2/1K3P2/Bnq1R1Pr/4R3/r1b3N1/Bbk1q3 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 Kd7 f4 Kd6 c4 Kc5 g4 Kd4 b6 h5 c5 e5 c6 a5 c7 h3 d3 h2 b7 f6 f5 a4 Bd2 a3 Ra2 e3 Bc1 e4 Qc2 h4 Bg2 b3 Nd2 b2 Bf1 b1B Qa4+ Kc3 d4 h3 d5 Rh4 d6 Na6 b8B Bd7 Nb3 Nb4 Bb2+ Kc2 Nf3 Ne7 c8R+ Qc7 Rg1 h1B Rg3 h2 Qa7 Qc3 Ra1 a2 Rc6 Bg2 Rh3 h1Q Bc7 Re8 Nc5 Qh2 Na6 Qc4+ Ke1 e2 Bc3 Rh7 Nh4 Kc1 Re3 Bf3 Ng2 Rh4 Qb7 Qf4 Bd4 Qg5 Qa7 Qg8 Qb7 Bc8 d7 Bh6 d8Q Bd7 Bc3 Bf4 Kf2 Bd6 Be5 Bc5 Bd4 Ba7 Bde5 e1R Bd3 Rg1 Bc2 Bd1 Ba4 Bc2 Bc3 Qce6 Ke2 Rgh1 Rf3 e3 Rf4 R1h2 Re4 Bb3 B3e5+ Nc2 Kd3 e2 Kc3 Nb4 Bd4 Bc2 Re3 Ned5+ Kc4 e1Q Kb5 Qc3 Qe7 Qe1 Qh7 Qc3 Qc8 Ne7 Qd8 Qcc4+ Ka5 Kd2 Nc5 Bd1 Rh3 Bd3 Ne1 Bf1 Na6 Bd3 Rb1 Re2 Ng2 a1Q Rc1 Bb3 Re1 Qd1 Rg3 Bb1 Ba1 Kc1 Rf3 Rc2 Re4 Qe1 Rh3 Ra2 Rhe3 Qcc3 Kb5 B3c2 Qh8 Qd4 Qh7 Qdc4+
R2q1Q2/1Bbnq1n1/b2P1n2/1Q1r4/Kb1BB1N1/1RpP2k1/2N2rq1/3b1qR1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 h4 Kd6 a4 Ke5 a5 g5 d6 c5 a6 b5 h5 f5 h6 c4 h7 f3 a7 Kf4 e5 f2+ Ke2 b3 Ra3 b4 Rh2 b2 Ra4 b3 Nc3 b1Q Rg2 g3 Qc2 g4 Kd1 b2 Qb3 Ba6 Ra5 Qe4 Rh2 b1B Qa3 g2 Rh3 g3 Na2 Nf6 Bd3 f1N Nf3 g1B Bb2 g2 Nb4 Nbd7 Nc2 Bb6 Nh2 g1Q Bd4 Bc7 Ng4 Qgg2 Ra4 Rb8 a8B Rb5 Bb7 Ng3 Qc5 Ra5 Ra1 Ngh5 Qb5 Ng7 Kc1 Be7 Kb2 Rf8 h8R Ba2 Re1 Bb3 Rg1 Ba4 Ka3 c3 Rh2 Qe1 Bde4 Kg3 Rg8 f4 e6 f3 d3 f2 Rh5 f1Q Rc5 Rf7 Rc4 Qee2 Rb4 Qe3 Rb3 Qee1 Qc4 Rd5 Qb5 Ba5 Rh8 Bb4+ Ka2 Qb6 Ra8 Bd8 e7 Bc7 e8Q Qe3 Qf8 Qee2 Bc6 Qb8 Bb7 Qd8 Bf3 Qee7 Be4 Nfe8 Ra7 Rf2 Ra8 Bba5 Ka3 Nef6 Rb2 Bb3 Rb1 Ba4 Rb3 Bb4+ Ka2 Qe1 Rb1 Bba5 Ka3 Nb8 Nce3 Bd1 Rb3 Bb4+ Ka4 Qf1 Nc2 Nbd7
2N2N2/RqR5/2rp1b1n/2k2b1q/5BPn/2rbKnQP/B2Q1Q2/n2Rrb2 w - - 0 1 illegal: No proof kernel
QBb2qqq/3Rn3/2P4k/2RpBr2/bbR3q1/KN6/1QBnP1N1/3b1rn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 g4 f5 b4 Kf7 c4 Kg6 Kc2 a5 Kb3 f3 c5 f4 b6 f2 b7 h3 g5 h4 b5 d3 b6 f3 Qd2 h2 Bh3 f1N Qb4 a4+ Ka3 d2 Qb2 d1B Ka2 a3 Qb5 f2 Be6 h3 Bd5 Nd2 Bb2 f1Q Be5 Rh5 Qb2 Nc6 b8Q Nd4 b7 N4f3 Bb3 Ne7 c6 d5 Ba4 Kh7 g6+ Kh6 g7 Rf5 g8R Qg2 Qc2 Qg4 Rg7 Ra6 Qa8 Rb6 Nc3 Rb1 b8B Qe8 Qc1 Qf7 Qb2 Qg8 Ne4 Rc1 Bb5 Ba4 Rb1 Rf1 Bd3 Bd1 Rc1 Ba4 Ka1 a2 Nc5 Bd1 Rc4 Ba4+ Qb1 Bd1 Kb2 a1Q+ Kc1 Qad4 Nb3 Qc5 Kb2 Ng6 Na5 Qg2 Qb7 Qg4 Bc2 Rf2 Qc7 Kg5 Ba4 Bc2 Qe7+ Kh5 Qf7 Qe7 Re4 Qd8 Qc7 Bb4 Rd7 Ne7 Qb7 Kg6 Qa1 Qdf8 Qa8 Kh7 Bb3 Kg6 Bc4 Ba4 Nb3 Nh4 Bb5 R2f4 Nf3 Kh5 Rb1 h1B Qa3 h2 Ne1 Rf1 Bd3 Nhf3 Rc1 Ng1 Rc5 Kg5 Rec4 Be4 Qa2 h1Q Ng2 Qhh8 Bb1 Bc2 Qa3 Bd1 Bc2 Qg6 Ka2 Qgg8 Qb2 Bc3 Ka3 Kh6 Rd4 Ba5 Rdc4 Bb4+
N2K4/5b2/qPB1nr2/Bpb1q1PB/5r2/2rkN1R1/q1Rrnn2/Q2Qq1N1 w - - 0 1 illegal: No proof kernel
nb1b4/nkqB1r2/1Pq1R2P/2R1BnqB/1Q1NrQq1/b2b4/N4p1N/5K2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 Kd7 e5 Kc7 c5 f5 c6 d3 h5 d2+ Kf2 d4 h6 d3 e6 f3 e7 a4 e8Q a3 Rh3 a2 Qf7+ Nd7 Qe6 f4 Qe4 Rh7 Qe3 Nb6 Na3 Bf5 Be2 g3+ Kf1 g4 Qc2 d1N Qed2 g2+ Ke1 g3 Qe3 f2+ Kd2 f1Q Qe8 f3 Nb1 f2 Qc3 Ra4 Bb2 Na8 Nf3 g1Q Nh2 g2 Qf7+ Ne7 Bh5 Ne3 b6+ Kc8 b5 Qc7 Qa3 Re4 b7+ Kb8 Bf6 Nc8 Be5 Na7 Nc3 Bc5 Qf6 Rf7 Re1 a1B Na2 Bb6 Qfd6 Bb2 Qab4 Ba3 Qf6 Bg6 Qf4 Nf5 Rg3 Qh1 Rg5 g1B Re3 Qfg2 Kd1 d2 Ke2 Qg4+ Kf1 d1Q+ Re1 Qdd6 Re2 Nc8 Re1 Ka7 b8N Qcd8 c7 Kb7 Nc6 Na7 Nd4 Bh7 Rg6 Qdg5 Rc1 Qhf3 Rc5 Qfg3 Rf6 Qc6 Re6 Ba5 Nhf3 Bh2 c8B+ Kb6 Bd7 Kb7 Nh4 Bd8 b6 Qc3 Nhf3 Bg6 Qd2 Bf4 Nh2 Qcg3 Bf6 Bb8 Qf4 Qc3 Be5 Qc7 Ra5 Q3c6 Rc5 Re2 Bg7 Ne7 Rce5 Bd3 Rc5 Nf5 Be5 Re4+
1K3k2/2Br3Q/1P3p2/B1P1bq1B/R1Nq1bb1/4n1Nq/q1Qnb1Qn/R6r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 f3 c4 a4 e4 d3 g4 d4 b4 d2 b6 h3 b7 f2 g5 d3 b5 f6+ Kf4 h2 b6 a3 c5 h4 e5 a2 g6 h3 g7 Nh6 g8Q Qd4+ Kf3 Nc6 b8B Na5 e6 Nc4 e7 Bg4+ Kg3 Ra7 Qc2 d1N Ba3 d2 Qgh7 Rd7 Ne2 Nde3 Bc7 d1B Bb4 Nd2 Ba5 Bg7 Rg1 h1Q Na3 h2 Nc4 Qhd5 Bg2 h1Q Bf3 f1Q Rg2 Ne4+ Kf4 Qh3 Ng3 Be2 Rg1 Qfg2 Rgb1 Bf8 Rb4 Qdh5 Ra4 Nd2+ Qhe4 Kf7 e8Q+ Kg7 Qa8 Bd6+ Ne5 Qg6 Qb7 Kf8 Qa7 Be6 Bh5 Nhg4 Qb7 Nh2 Qd5 Be7 Nc4 B6g4 Qf5 Qe8 Qh7 Qc8 Rh1 a1B Rd1 Bb2 Rda1 Qd5 Qf3 Qg1 Qg2 Qf7 Na3 Qa2 Nc4 Bd6+ Ne5 Nb1 Ke4 Qd1 Nc4 Bbe5 Qf5 Bf4 Qh7 Nd2+ Kd4 Nf5+ Kd5 Bde5+ Kc6 Qg1 Qf1 Qd4 Qh1 Ne3 Qg2 Qe8 Kb7 Qg6 Kc8 Qf5 Kb8 Nhf3 Bf7 Qh1 Qg6 Rh4 Qh7 Qf1 Qg1 Rh1 Bh5 Qh3 Qg2 Nh2
1BR2rbN/2n1n1Q1/P2bq1b1/Nr1P3b/Rrn2NrK/1q4R1/2BQ1p2/5k2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kd6 e4 c5 a4 f5 g4 h5 a5 b5 g5 h3 g6 h2 g7 h4 Bb2 h3 Na3 f3 Kg3 c4 Bc3 f2 Nf3 b3 Nd2 b2 Rb1 f4+ Kf3 b4 Bg2 f1N Ra1 b1Q Qe2 b3 Ra2 b2 Qe3 Qb6 Rg1 h1B Qe1 h2 Qd1 Ne3 Qc2 Rh4 Nb3 Na6 Rc1 Bf5 Nc5 Bg6 Ne6 Nc7 a6 Ne7 g8Q Rd8 Be1 c3 Bg3 Nc4 Qd2 c2 Rg1 c1R Qg7 Qc2 Kf2 b1R Bf1 Qa4 Bd3 Bf3 Bc2 h1B Bh2 Ra8 Rg3 Rg1 Ra1 Qab3 e5+ Kd7 d6 Kc6 d7 Kd5 d8N Bfh5 Nf7 f3 Nh8 Rg4 Nc5 Qe6 Nd3 Ke4 Ra2 Bg2 Ra1 Bf1 Nf4+ Bd3 d5 Bh7 Nb5 Bg8 Nd4 Rd8 Nc6 Rh4 Rh3 Rg5 Na5 Kd4 Rg3 Rb8 Qc1 Bdg6 Ra4 Kc3 Qb2+ Kd2 Qa2 Nf5 Qb2 Bd6 Qa2 Ne7 Qb2 Qf5 e6 Rf8 Qa2 Nc8 e7 Qe6 e8R Ne7 Rc8 Rb2 Kf1 f2 Kg2 Rb1 Qab2 Ke1 Qbd4 Rhg4 Kh3 Kf1 Qe3 Qa2 Qed4 Rb5 Qd2 Qb3 Nc6 Re5 Na5 Rgg5+ Kh4 Re4 Qdd4 Ne3 Qc3 Reb4 Qd2 Nc4 Nd3 Bc5 Rg2 Na8 Bb8 Bd6 Rg3 Nc7 Nf4 Rg4+
B1Q2N2/3b1rbn/pQQn1R2/2N1P1r1/qq2P1q1/3K1BR1/k1rB2b1/q1b5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 d5 e5 fxe5 c6 Qd3 cxd5 Qd1 d4 Kd2 Ke7 g4 Ke6 b4 Kd5 c3 Kc4 e4+ d3 g5 h5 b5 f5 b6 d5 g6 a3 g7 f4 b7 d4 Ne2 h3 Rh2 a6 Bb2 h4 Qe1 Kb3 c4 f3 c5 f2 c6 a2 c7 Nf6 Bg2 f1R Qf2 Nbd7 b8Q+ Nb6 Nec3 Qd6 Bc1 Rg8 Nd1 Nh7 Qf5 Qb4+ Ndc3 Bd7 Qf6 Nc8 Qd8 Rf7 Qb7 Nd6 Qe8 Rc8 Rh1 h2 Na3 h3 Rg1 h1Q Bf3 h2 Rg3 Qf1 Nb5 h1B Qb6 Bg2 Bb2 Qh1 Rf1 a1B Bc1 Bb2 Rf2 Qh3 Rf1 Qg4 Rf2 Qc5 Na4 Ka2 Qe6+ Qc4 Nc5 Ba3 Qd5 Qb3 Qdc6 Qb4+ Kd1+ d2 Kc2 Bb2 Kd3 d1Q+ Bd2 Bc1 Rf1 Qda4 Rf2 Rb8 c8Q Rb7 Nc7 Ra7 N7e6 Rc7 Ke2 d3+ Ke3 Rh8 g8B Bg7 Qc6b7 Rc6 Nf8 Rc7 Nce6 Rc2 Q7c6 Nf6 Nc5 Rh5 Be2 Nh7 Rf6 Rg5 Bf3 Bb2 Bc1 d2 Kd3 d1Q+ Bd2 Qa1 Re6 Rff5 Rf6+ Rc4 Bd5 Bc1 Qcb5 Rf4 Ba8 Rc2 Q5c6 Rff5 Rg6 Rf7 Re6 Qaa5 Rf6 Qaa4
nb1b1BN1/kB1b2P1/1R6/b3n2K/1q6/r1RNQn1Q/Pq1pr3/nRqB4 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Ke2 h5 g4 b5 f4 d5 c4 Kd7 f5 Kc6 c5 Kb7 f6 e5 c6+ Ka7 g6 h4 f7 b3 g7 e3 Kf3 b2 c7 h3 g5 e4+ Kg3 b4 g6 b3 Ne2 d3 Ng1 d4 Qh5 e2 Qg4 e1B+ Kf4 d2 Qf3 d1N Qf2 e3 Nf3 h2 Qg1 d3 Qg2 e2 Qf2+ Qd4+ Kg5 Ne7 g8Q Bd7 c8B Nec6 g7 Bd6 f8R Ne5 Qf7 Ba5 Qf4 e1B Q2e3 Bd8+ Qf6 Bea5 Rf7 Re8 Nbd2 b1N Bb7 b2 Kh5 Na6 Be2 Bb8 Qf5 Nc7 Ne4 Nd2 Qh3 b1Q Ba3 Qb2 Ne1 Ndf3 Rc1 d2 Bf8 Qc5 Rg1 h1Q Nf6 Qcd4 Rc5 Qdb4 Ng8 Re6 Nd3 Re8 Qg5 Ne3 Rc3 Nc2 Rb1 Na1 Rf6 Qhc1 Rh6 Nf7 Bd1 Re2 Qf4 N7e5 Rb6 Nd5 Qg5 Nc7 Re6 Bb6 Be4 Ka6 Rec6 Kb7 Qe3 Ra3 Rd6+ Ka7 Bb7 Na8 Re6 Qc5 Rc6 Ba5 Rb6 Qcb4
1b3rBK/2rRR1P1/QN1q1N2/b1q1n1Q1/b1q1R3/p2bP3/q3k3/B2r2Qn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 h5 g5 f5 b3 a4 g6 c3 g7 f3 b6 c2 b4+ Kc4 d4 c5 d5 h3 b5 h4 d6 a3 b7 h2 b6 h3 d7 f2 Be3 c1B Bh6 f4 Bg5 f3 Bf6 Bd2 Bh4 Ba5 Bg2 f1B e3 f2 Qg4+ Kd3 Bd5 c4 Ke6 c3 Kf7 c2 Nc3 c1Q Bf6 Bd6 Nf3 Nc6 b8Q Ra7 b7 Nge7 Nd2 Nf5 Nce4 Qc5 Rd1 Ng3 Qa8 Bb8 Ba1 Rf8+ Kg6 Be2 Kh7 f1Q Bg8 Ne5 Kh8 Qf7 Rhg1 h1R Nf6 h2 Rgf1 Qdc7 d8Q+ Bd7 Rf4 Qa2 Re4 Q7d6 Qg6 Bf1 Nc4+ Ke2 Nb6 Ba4 Qg5 Qcc4 Qc7 Qdc5 Rd7 Rg1 Qd8 Qd6 Qe8 h1Q+ Qeh5+ Qf3 Qhg6 Nh1 Re7 Qf5 Rd7 Bc7 b8R Rb7 Rbd8 Bb8 Re7 Rc7 Qc6 Qc8 Rdd7 Qcc5 Qa8 Qa6 Qb7 Q6c4 Qa7 Bh3 Qa8 Rd1 Qa6 Be6 Qg1 Bf5 Q6g5 Bh7 Rg4 Bb1 Re4 Bd3
BbN3Q1/1rnn1P2/r6q/3b3p/R2n3k/2RnRqqP/2BNQ2q/4K1Nb w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 f4 c5 f5 cxd4 Bf4 gxf4 b4 Kf7 c4 Kf6 g4 Kg5 c5 h5 h3 e5 f6 d5 c6 a5 f7 e3 c7 e4 b6 a4 b5 d3 b7 f3 b6 e2 Nd2 a3 Bg2 a2 Nc4 f2+ Kd2 f1B Qb1 e1N Qb5 e3+ Kd1 e2+ Kd2 Nf6 Qa5 Ra6 Qc3 d4 Rh2 Nbd7 b8Q Bb7 c8B Kh4 g5 Qc7 g6 Bd6 g7 Nf3+ Kc1 e1Q+ Kb2 d2 Kc2 d1N g8R Qg3 Qd2 Nd5 Qe2 Nf2 Re8 d3+ Kc1 Rf8 Re3 Nd4 Kd2 Bf4 Bh1 Bg2 Ke1 Ba8 Rc1 a1Q b7 Qd6 Nd2 Qa2 Rc7 Qh6 Rc3 Be4 Bf3 Nc7 Bg2 Bd5 Bh1 Nb6 Bf5 Nd7 Qe8 Rg8 b8N Rgg6 Bfe4 Rgb6 Qg8 Rb7 Nc6 Qc2 Na7 Be5 Nb1 Qb2 Nc8 d2+ Kf1 Bd6 Bc2 d1Q+ Qe1 Qbc1 Nd2 Qdf3 Rg2 Qa3 Qe2 Qh2 Ke1 Bf4 Rg3 Qad6 Rg7 Qdg6 Bg2 Qgg3 Rg6 Bd6 Rf6 Be5 Rf4+ Qfg4 Rff3 Rb3 Qg6 Be6 Rc6 Nd5 Rd3 Bb8 Qg8 Nc7 Rfe3 Q4f4 Rc4 Qf5 Bf1 Bh1 Bg2 Rbb6 Bc6 Qff3 Ba8 Rb7 Ra4 Bd5 Rc3 Nd3+
2bq4/1rn1P3/bpRr1N2/4BB1r/3Q1qRP/k2q2Qq/2r2b2/B2NK1nQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 h4 Kd6 a4 g5 e4 f5 a5 c5 a6 g3 a7 g4 Ba6 c4 Bd2 b6 Ra3 c3 Ra5 c2 Be3 c1Q Nh3 f3 Bb7 g2 Rh2 g1R+ Kf2 b3 Rb5 f4 Bc6 b2 Nd2 b1Q Rh1 Qd3 Rb4 Nd7 Qf1 Ne5 Qg2 Rb8 a8Q Bh6 Qg3 Nf6 Bd7 Rd1 Bf5 Rb7 Rg1 Rhh7 Rc4 Ne8 Rc3 Nc7 Rc6+ Ke7 Rg2 Bg5 Qa1 Rh5 Rg1 Qca3 Qc1 Qad6 Rg2 Qe6 d6+ Kd7 Qa1 Rc1 d5 Rc2 Ke1 f2+ Kd1 f1B Bd4 f3 Nf2 Bh6 Ke1 Be3 Nd1 Be2 Qb1 Bf1 Ba1 Be2 Qh3 g3 Rg1 g2 Qg3 Qd4 Qc1 Ba6 Qb1 Qd3 Qc1 Nf7 e5 Ng5 Ne4 Nh3 Qb1 Ke8 d7+ Ke7 Qc1 Qd6 e6 Qf4 Rh1 Ng1 Nf6 Ne2 Rf1 g1R Qb1 Rg2 Rg1 Rf2 Rg2 Ng1 Qc1 Rfd2 d6+ Kf8 e7+ Kf7 Be4 Ke6 Bh7 Qe8 d8B Qf8 Ng8 Kd5 d7 Qe8 Bf5 Qf8 Rg6 Kc5 Rc6+ Kb4 Qb1+ Ka3 Nf6 Nd5 Bc7 Qd8 Bce5 Nc7 Bh7 Qdc4 Bf5 Rd6 Bh3 Qd3 Bf5 Qh8 d8Q Qe8 Qd7 Qd8 Qc1+ Rb2 Qh3 Ne2 Nf2 Re6 Qd4 Rd6 Qb1 Rc2 Kf1 Qg8 Qe1 Qd8 Nd1 f2 Qh1 Ng1+ Qe2 Qh6 Rg4 Qg5 Kg2 Qh6 Qe1 f1Q+ Kg3 Bd2+ Qee3 Qh3+ Kf2 Qf4+ Qef3 Bc1+ Ke1 Be3 Qg3 Bf2+
Q1Q1KN1N/3Pq3/rbq1RQ1B/1B3R2/4b1kn/q3q3/nR1rnp1P/2n4r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Ke6 e4 f5 b4 c5 e5 g5 b6 a5 b5 c3 b7 g3+ Kf3 c4 b6 a4 Nh3 g4+ Kg2 c2 Ra3 f3+ Kg1 g2 Kf2 g1Q+ Ke1 c3 Bh6 c1N Ra2 a3 Nd2 f4 d5+ Kf5 d6 c2 e6 g3 e7 g2 e8R Ra6 Re6 Kg4 Ne4 Nc6 Kd2 Nb4 Kc3 Qe7 Kc4 Qe3 Kb5 g1N b8Q Bb7 Nc5 Be4 b7 Nge2 Ng5 f2 Qa8 f3 Rb2 a2 b8Q a1Q Qc8 Qaa3 Nd7 Nba2 Nf7 Bg7 Qd3 Bd4 Qdc3 Bb6 Qf6 Rh7 Nh8 Rg7 Bg5 Nh6 Nf8 Nf5 Bh6 Nh4 d7 Rg5+ Kc4 Rd5 Rg1+ Ng3 Be2 Rd6 Rf1 Rd2 Bd3 Nge2 Kb5 Bg6 Kc6 Bf5 Bb5 Bg6 Re1 f1R Rd1 Rh1 Rf1 Ba7+ Kc7 Be4 Re1 f2 Rd1 Qg7 Kd8 Bb6+ Ke8 Nb3 Qab7 c1Q Qba8 Qc6 Rc1 Qgg5 Rc5 Nbc1 Rce5 Qg7 Rf5 Qge7+
1R3Q2/Q1bp4/Nnrq1BPq/4b2q/b1R3N1/B1rP1kBq/4n2b/K3Qn2 w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b7 Bh6 b5 Bg7 b6 Bf8 Bb5 cxb5 c4 Kf7 f4 Ke6 g4 h5 f5+ Ke5 c5 Kf4 c6 a5 c7 e5 g5 e3 g6 e4 f6 b4 d3 h3 f7 a4 Bb2 h2 Nf3 h4 Bd4 h3 Ra2 e2 Kd2 e1B+ Kc2 a3 Rb2 e3 Bc3 e2 Kc1 b3 Rc2 a2 Kb2 a1B+ Kc1 Qh4 Nd4 Qh5 Ba5 Bd6 f8Q+ Nf6 Qe8 Nd5 Ne6+ Kf3 Rc5 b2+ Kc2 Ra6 Nc3 b1N Qd8 Beg3 Bb4 Nc6 b8B Nd2 b7 Nf1 Kb1 Nd4 Rc4 Rc6 Ne4 Nb6 Qe1 Bc3 Rg1 h1Q Nf2 h2 Ba3 Bde5 Qe8 Ba5 Nc5 Qg2 Na6 h1Q Kb2 Bh2 Ng4 Qgh3 Ka1 Qh6 Ba7 Rg8 b8B Bb7 Qe7 Rc8 Q7b4 Q3h5 Qc5 Qg2 Rh1 Qgh3 Qf8+ Rf6 Rg1 Bc6 Rg2 Ba4 Qc5 Re8 c8Q Rc6 Qb7 Rc8 Qf8+ Bf6 Bf4 Be5 Bb8 Rc7 Qa7 Rc8 Bbd6 R8c7 Be7 Rc8 Qb1 e1Q Rb2 Qeg3 Qe1 Ne2 Bh4 R8c7 Bfg5+ Qf4 Bf6 Qd4 Bg3 Qd6 Re4 Rc3 Rc4 Rc6 Rbb4 Nc8 Rb5 Bc7 Rb8 Nb6
q3BR2/nnPQKNkr/b7/4P3/N2p1Rb1/q2bQqnR/1r4nB/1B2b3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 a5 e4 h3 g5 h2 g6+ Kg7 b6 h4 c5 a4 c6 h3 e5 f3 c7 f4 b7 a3 b5 f2 b6 f3 Qd2 a2 Qg5 Nf6 Qh5 Ne4 Bd2 Nd6 Qg5 Nc6 b8Q Nb7 Qe3 Bg4 Nc3 Rh7 Na4 Bb4 Qc8 Na7 Qd7+ Qe7 Rc1 a1Q Rc4 Rb8 Be2 f1Q Be1 f2 Nf3 Qg2 Ng5 f1B Nf7 Qf3 Bg3 Be1 Bf4 Nd8 b7 Qea3+ Rc3 Q1a2 Rg1 h1N Bh2 Ng3 Rg2 Rc8 b8R Nb7 Rf2 Re8 Rc8 Re6 Rh8 Rb6 Rf8 Rb2 Rb3 Qg2 Rf4 Qf3 Bg1 h2 Rc3 h1N Bh2 Nf5 Rb3 Nhg3 Rc3 Bfh3 Bd1 Nh4 Bc2 Qa1 Bb1 Ng2 Nh8+ Kh6 g7 Q1a2 g8B Qa1 Qb5 Kg7 Bf7 Bc8 Be8 Bhd7 Qb3 Bb5+ Qc4 Bg4 Nf7 Ba6 Qb5 Qe7 Nb6 Qaa3 Na4 Qd8 Rb3 Qa8 Ng5 Qd1+ Qd2 Nf1 Rc3 Qdb3 Nf7 Bf5+ Ke2 d3+ Kf3 d4 Qd7 Be4+ Kg4 Qd1+ Qe2 d2 Rh3 Ng3 Kg5 Bed3 Qe4 Qf3 Qe3 Ne4+ Kf5 Ng3+ Ke6 d1B Qd5 Qf2 Qd6 Bg4+ Ke7 Qb3 Qd8 Qf3 Qd7 Qa3+
1R3rrN/QPK4R/4q1bN/nQ2b3/2nB1nb1/1bq2BrP/1pBR4/k1r5 w - - 0 1 illegal: No proof kernel
N2qnB1R/NP1Q4/b2Br3/1bN5/1Q2pK1R/2bnr2r/2Q1P3/qq1b1k1q w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 Kd2 Kf7 h4 Kg6 b4 Kh5 f4 a5 c4 d5 b6 g5 b7 e5 f5 e4 f6 d3 Ke3 a4 f7 d2 c5 a3 c6 d4+ Kf2 d3 Ke3 g3 b5 Kg4 b6 a2 h5 Ra6 c7 Bb4 f8B Nf6 h6 Ne8 h7 Bc3 Qe1 d1B Nh3 g1Q+ Qf2 d2 Nf4 g2 Na3 Ba4 Nc4 d1B Bca3 Nc6 b8Q Ne5 Bad6 Nd3 Ne6 Bb5 Nc5 Ra3 Rh5 Qh1 Qf7 Bca6 c8N g1R Na7 Rf1 b7 Rf6 Qbc7 Re6 Nb6 Rb3 Rb1 a1Q Qfd7 Ra3 Rh2 Rb3 Na8 Ra3 Rg2+ Kh3 Rg4 Rb3 Rh4+ Kg2 Qa5 g4 Qb4 g3 Rc1 Kf1 Rb1 Rg8 h8Q g2 Qhd4 Rh8 Qdc4 Nc1 Kf4 g1Q Rg4 Rh3 Rh4 Bh8 Qc2 Rbe3 Rb3 Bb2 Rd3 Bc3 Rd5 Qb1 Rdh5 Qg7 Rh8 Qd4 Qa3 Qa4 Qab2 Qaa1 Qb4 Nd3+
2R1NnR1/rP1R2nN/nKr1Q3/B5n1/kb1PBrq1/2qbp3/2r4b/2Q4Q w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 e5 f4 h5 b4 a5 d4 c5 g4 c3 b6 Kc6 f5 a4 g5 c4 b7 Kb5 f6 a3 f7 a2 g6 h3 g7 h2 Qe2 h4 Qg4 h3 Qf5 c2 Bd2 c1R Qg6 Qd7 Qb6+ Ka4 b5 c3 Qe6 c2 b6 Rh4 Be1 Bb4 f8R Nf6 g8Q Nh7 Qg2 Ra7 Re8 Rf4 Rd8 Na6 b8Q Nf8 Ke2 e3 Kd3 e2 Kc4 e4 b7 e3 Qc7 Bd6 Bb4 e1B Ba5 Beb4 Nf3 Be5 Rg1 h1N Bd3 h2 Bh7 Nf2 Nbd2 h1N Ng5 Ng3 Qh1 Nh5 Nde4 Nh3 Nf6 Ng7 Be4 Bed6 Ngh7 Ng5 Rb1 a1Q Ne8 Qc3+ Kd5 Rcf1 Rb2 c1R Rc2 R1f2 Rg2 Qa3 Rc6 Qc3 Rg1 Rfc2 Rg2 Qf7 Rd7 Qg6 Rc5 Qh5 Kc6 Qg4 Kb6 Be5 Rdd5 Bd7 Qc8 Bb5 Rd7 Rf6 Qcc6 Rcf1 Rc4 R1f4 Qc1 Bd6 Qcd5 Rh6 Rc8 Bd3 Rg3 Nh3 Qh5 Ng5 Qhh1 Rff2 Rdc7 Qd1 Rh3 Nh5 Bg6 Bh2 Qg8 Rf4 Rd7 Nge6 Rg3 Qe2 Rg5 Qg4 Be4 Rhf6 Qf7 Rh6 Rg8 Nhg7 Qf5 Rf6 Qe5 Ng5+ Qd6 R6f5 Qh6 Rc5 Qe6 Rc6+
1r6/1p1rRb2/q1B1Q2P/q1qP1N2/2k2bb1/BRrn1Q1B/R1N4r/nb5K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 h4 Kc5 a4 g5 e4 f5 a5 b3 h5 g3 d3 g4 a6 b2 e5 Ne7 e6 Bh6 a7 Na6 d6 Ng6 e7 Nb4 e8B Nc2 d7 Ne5 Bf7 Rb8 Ne2 f3+ Kg1 g2 a8R f2+ Kh2 g1R R8a4 f4 Bg2 f1B R4a3 f3 Ba2 f2 Qd2 g3+ Kh3 Bf4 Nd4 c6 Qe1 Qa5 Rh2 Be2 Rh1 f1Q Nf5 Rd8 h6 Bh5 Bb3 Bf7 R1a2 Na1 d4+ Kb5 d5 c5 Ba4+ Kc4 Qe3 Nd3 Qe6 Qe2 Bf1 Rg2 Rb3 Rf2 Rh2 g2 Bc6 g1Q Bg2 Qee1 Bf1 Qa6 Rg2 Qea5 Rg7 Rc2 Bg2 Qd4 Bf1 Rc3 Kg2 Rc2+ Kh1 Rg2 Nc3 b1B Nb5 Qdc3 Nbd4 Rh2+ Kg1 Qcb4 Ba3 Qe1 Qe3 Qeb4 Rh7 Be8 Qg3 Bg6 Re7 Bf7 Ng7 Qbb5 Rb4+ Kc3 Qf3 c4 Bg2 Qc5 Bh3 Re2 Kh1 Rf2 Nc2 Rd2 Ne3 Rh2+ Kg1 Kd4 Rbb2 c3 Rb3 Rf2 Kh1 c2 Ng2 c1R+ Ne1 Rc3 Nc2+ Kc4 Bb4 Bh5 Ba3 Bg4 Nf5 Re8 d8Q Be6 Qd7 Red8 Qg2 Bf7 Qe6 Rd7 Qf3 Rh2#
3b2n1/rp2B1P1/B3qqR1/1QNNb1Q1/1RnB1rn1/1qn2bPN/q2k4/7K w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 a4 Kf7 c4 Ke6 f4 Kf5 Kf2 d5 c5 e5 c6 h5 g6 h4 g7 b3 g3 d3 Kg2 b2 c7 e3 a5 Ke4 f5 e2 a6 e1B f6 h3+ Kh2 d4 a7 d2 f7 Ke3 Qc2 d3 Qc6 e4 Nf3 Qf6 Nc3 b1Q Ne2 Nd7 Ra5 Bd6 f8B Nb6 Kg1 h2+ Kg2 Qa2 Qb5 Be5 Ra3 Nc4 Neg1 Bg4 c8Q Rh4 Bb2 d1N Nd2 Nc3 Nb3 d2 Nc5 d1Q Nh3 Qdb3 Ra4 Kd2 Be7 e3 Qf5 e2 Rb4 Bh5 Qg5+ Rf4 Ba1 Bf2 Bb2 e1Q Bd3 Qe2 Rc1 Qg4 Kh1 Qge6 Re1 Bg4 Re4 Be1 Rd4 Bf2 Rd6 Bfd4 Ra6 Bc7 Ba1 Bd8 Be2 Be5 Rb6 Rb8 a8N Bh5 Nc7 Ra8 Nd5 Ra7 Kg2 h1N Rc6 Na4 Bd4 Nf2 Bf1 Ng4 Kh1 Nc3 Rb6 Qf8 Bd3 Qef7 Rg6 Qe6 Bf1 Qff6 Qd7 Nd6 Ba6 Nc4 Qb5 Nf2+ Kg1 Bf3 Kh2 Ng4+ Kg1 Bd1 Kh1 Bf3+
q1b2KRr/P2r1n1B/3B1R2/3NN3/4b3/RpnN1Q1Q/1b2nnP1/b1qk1r2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 a4 b5 a5 c5 d6 h5 d5 h3 d7 b3 Ke6 b4 Kf7 b2 a6 b3 a7 h2 d6 f3 Ra5 f2 Qd2 h4 Qe1 f4 Qd1 f3 Nd2+ Kc3 e4 b1N e5 h3 e6 c4 e7 Nh6+ Kg6 Nc6 e8N Nf7 Ba3 Bg7 Rf5 Nd4 Rf6 Ne2 Nc7 Rb8 Bc5 Rb7 Nd5+ Kd3 Ba3 c3 Bb4 Qf8 d8R c2 d7 c1B Bd6 Bb2 Re8 Qg8 d8Q Nc3 Qd7 Ba1 Qg4 Rd7 Rd8 Qe8 Qf5+ Qe4 Rg8 Bb2 Qc1 Ba1 Nc4 Bb2 Qe1 Kc2 Ne5 Ba1 Nd3 Bb2 Nc7 Qa8 Nd5 Ba1 Qb1+ Kd2 Qb2+ Kd1 Qe6 Bh6 Qa2 Bc1 Kg7 Ba3 Kf8 B3b2 N3f4 Nc1 Ba6 f1R Bd3 f2 Nf3 N1e2 Rg1 h1N Ne5 h2 Bh7 Re1 Qa3 f1B Qh3 Nf2 Nfd3 h1Q Qb4 Nh6 Qf3 Nf7 Qbg4 Qh6+ Ke8 Qg5 Qgh3 Qc1 Kf8 Qc2 Ba3 Kd2 N3f4 Ng3 Qhg4 Bd3 Qf5 Nge2 Bd6 Be4 Rh1 Rc1 Rh4 Rf1 Q5h3 Qc1 Nfd3 Bg6 Ra4 Be4 Ra3 Kd1
1BB1B1R1/Pq2b2k/1p1Q2R1/K2PQ3/nNNq2Q1/q1qb4/2r1n1r1/4bn1b w - - 0 1 illegal: No possible last move, all moves rejected
K1b2B2/PQ2bpqB/Q1n1q1n1/8/P1N2rB1/1qRR2R1/r2b1bN1/nkn5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 e4 Ke5 h4 b5 a3 g5 c5 d5 c6 b4 a6 f3 c7 b3 h5 d3 Ke3 d2 h6 g3 h7 g4 Rh4 b2 Bg2 d4+ Kd3 f2 Kc4 f1N Kb5 d3 Kb6 Kd4 e5 Qe8 e6 Nc6 e7 Ne3 Rh6 Nc2 Bh3 g2 Qf1 d1N Bg5 g3 Bg4 d2 Rh3 Nc3 Bh6 d1Q Nd2 Ne2 Rc1 Kd3 Ngf3 Na1 Nh4 g1B+ Rc5 Qa4 Ng2 Qd4 Nc4 Kc2 Qf6 Qed7 e8R Kb1 Rd8 Be7 Bf8 Qe6 Rd6 Qde5 Rd3 Nc1 Qf3 Bf2 a4 Qg7 a7 Be3 Nf4 g2 Rg3 g1B Ng2 Bd2 Qe2 Bf2 Qf3 Bd7 Kb7 Re8 Qe4 Bc8+ Ka8 Rd8 Qf3 Rd4 Qe2 Bd7 c8B Rf4 Ba6 Bc8 Bb7 Na5 Be4 Nc6 Qf1 Bf6 Bef5 Nge7 Bg6 Rg8 h8Q Bh4 Bh7 Ng6 Qe2 Be7 Qe4 Qh6 Qf6 Qg7 Qd5 Rh8 Bg8 Rh2 Bh7 Ka2 Qd7 b1Q Qb7 Qb2 Nb6 Qbb3 Rcc3 Kb1 Nc4 Rh1 Qg5 Re1 Qgb5 Re2 Qa5 Bde3 Qab6 Ra2 Q6a6 Bd2
8/KnQ5/nP4r1/nRr3Br/qpP1r1RQ/Q1bk2B1/B1Nrr3/1N2n2b w - - 0 1 illegal: No proof kernel
3nR2Q/1p1QBB2/nBqN1brb/P2n1P2/3N3n/5R1b/1n3b1r/k2n2NK w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kf7 d4 Kf6 a4 e5 f4 h5 Kf2 c5 Kg2 e3 d6 h3+ Kh2 c4 d7 b3 a5 e2 d5 e1N d6 b2 Na3 b1N Ra2 h4 Rb2 c3 Be3 c2 Nf3 c1B Bb5 e4 Qd3 Be7 Rf2 Ng2 Qc2 Na6 Qa4 Qe8 d8Q Nc3 d7 Rh6 Bc5 e3 Nc4 e2 Ng1 e1B Bc6 Nd5 g5+ Kf5 g6 Ke4 g7 Kd3 Qc7 Kc3 d8B Bf6 Bd7 Nge7 g8N Nc6 Qb8 Bcd2 Na3 Kb2 Qd6 Ka1 Ne2 Be3 Kg1 h2+ Kf1 h3 Rf3 Bc1 Qf8 Nh4 Be6 Bf2 Bdb6 Qd7 Bf5 Qe6 Ne7 Bd7 Qh8 Rg8 Bg6 Nd8 Bf7 Bc8 Bd6 Rg2 Bbc5 Bd7 Nc6 Qe8 Rg1 Rhg6 Rh1 Bg4 f5 Bh6 Ncd4 Qd7 Rb3 Qc8 Qd7 Qc6 Bf8 Bg3 Rg1 h1N Rf3 h2 Bb6 Nf2 Nc4 Bh3 Nd6 Nd3 Rh1 Bf2 Rg1 Bfe3 Rh1 Nb2 Rg1 R2g3+ Rg2 h1N Ng1 Bg4 Rc2 Nf2 Re2 Nfd1 Re1 Bf2 Re8 Rh3 Be7 Rh2 Nge2 Be1 Kg1 Rg2+ Kh1 Bh3 Ng1 Bg3 Rb3 Bf2 Rf3 Rh2+
RQ2b1b1/bn6/1bPpB1bB/2r1NQ2/Pk1q1b2/1b4Q1/rb2R1KB/1N1n4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 b5 f4 e5 Kf2 Ke7 c4 Kd6 f6 Kc5 h5 g5 f7 d3 f5 e4 f6 b3 a3 e3+ Kg2 b4 h6 e2 h7 e1B Bf4 g3 Be5 b2 Rh6 g4 Qc2 d2 Qf5 d1B Qd3 b3 Qf3 Bc3 Kh1 g2+ Kh2 g3+ Kh3 Bd6 f8B Nc6 f7 Na5 Nd2 b1B Qd3 b2 Ndf3 Nb7 Ne2 g1B Ra2 g2 Be7 Nf6 f8Q Ne4 Qg8 Bb3 Bg5 Nf2+ Kg3 Bc7 Re6 Nd1 Bh6 Ra7 Ra1 B1a2 Qf5 b1B Re8 Bb2 Nc3 Bd3 Nb1 Bf2+ Kh2 g1B+ Kg2 Ra5 a4 Kb4 Bh2 Bf4 Ne5 Ba7 Qg3 Bgb6 c5 d6 c6 Qf6 Rd8 Bd7 Ra8 Be8 Be2 Rd5 Bg4 Rc5 Bh3 Rf8 h8Q Bg8 Bg4 Bab3 Ra2 Rf7 Qhh7 Rf8 Qc7 Rf7 Qb8 Re7 Qh5 Bdg6 Be6 Rh7 Qf5 Rf7 Nd7 Qd4 Ne5 Bc3 Re2 Bb2 Bd5 Re7 Nd7 Re3 Ne5 Rec3 Be6 Rc1 Na3 Ra1 Nb1 Ra2
2Q2K1n/B2b1b1r/1bn3Nn/1P2Q3/1kB1q1Nb/1B2Q3/rpRrP3/1r4nR w - - 0 1 illegal: No proof kernel
5q1b/nn2kn1B/3NP1r1/4BQpR/2b1n1B1/rPbr2N1/N5KR/1Q3rb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 e4 g5 h4 d5 c4 f5 e5 a4 b3 g3+ Kg2 a3 e6 d3 h5 d2 b6 a2 b7 d4 c5 f3+ Kh3 g2 c6 d3 h6 f2 c7 f4 h7 f3 Ba3 Nc6 b8Q Na5 Be7 Ba6 c8B Nh6 Qd6 Nf7 Qb6 Rg8 h8N Bg7 Bf8 Bc4 Qc1 d1R Nc3 d2 Bd6 Nb7 Qc5 Ra3 Nge2 g1B Rh2 Bf6 Bc7 Rg6 Qf5 Ke7 Qcb1 Qf8 Ng3 Bd4 Bg2 f1R Be5 f2 Bd7 Ra8 Bf3 Ra3 Nce2 Bc3 Be8 Rde1 Bb5 d1N Nc1 Re3 Kg2 Rd3 Bh5 Be1 Be8 Nc3 Bg4 Nb5 Bc6 Bc3 Be4 Na7 Rh5 Re1 Rh2 f1N Rh5 Nh6 Nf7 Nd2 Nd6 Rf1 Qf3 Rf6 Bh7 Rg6 Qf5 Ne4 Qb2 Qa8 Rb1 a1B Na2 Qb8 Qc1 Qa8 Rb2 Nf7 Qb1 Qg8 Kh3 Qc8 Rh2 Qf8 Kg2 Bab2 Bf4 Bh8 Be5 Bc3
qb2B1Nq/4rKnp/qQQq1Q1P/2Pr1n1k/B7/q6N/3R1B2/r3r1rR w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 Nc3 f5 Rb1 b6 Ra1 Bb7 Nb1 f3 g4 f4 Bh3 Be4 Bf1 Bf5 gxf5 Bc5 Ba3 Be7 Bc1 Bf8 Kf2 Kf7 a4 g5 h4 d5 c4 b3 e4 g4 a5 g3+ Ke1 f2+ Kd2 g2 Kd3 f3 h5 b5 h6 b4 f6 Kg6 a6 b2 c5 b3 f7 Nd7 e5 Bd6 f8Q Ndf6 a7 Ne8 e6 Ng7 e7 Bb8 Na3 b1Q+ Qc2 b2 Nb5 Qa2 Ne2 b1R Rh5 g1R Qa4 Qa3+ Qb3 Qe8 Bg5 Re1 Nd6 Qc6 Bg2 f1Q Be3 f2 Ne4 Qc8 Bh3 Qg2 Rd1 f1Q Bd7 Qca6+ Bb5 Qff6 Rd2 Qfd6 Rh1 Qf3 Kc2 d3+ Kc3 d4+ Kc4 Qdf6 Kd5 Qg2 Rc2 d2 Bf2 d1R Rd2 d3 Ba4 Qfa1 Qb6+ Qf6 Rc2 d2 Qfd8 Ra1 Rb2 d1Q+ Rd2 Bh2 Qf8 Re8 a8Q Kh5 Qac6 Qfb2 Qff6 Rd8+ Qcd6 Rd7 e8B+ Rf7 Kc6 Ne7+ Kd7 Nef5+ Kd8 Qgf3 Qde6 Rg8 Qec6 Rg5 Ng1 Qbc3 Nh3 Bb8 Nd6 Qg2 Nc8 Qcb2 Qd7 Qga8 Qdc6 Rgg1 Ne7 Rh8 Ng8 Qbc3 Bd7 Rfe7 Rc2 Qd6 Rd2 R7e5 Bb3 Rd5 Ba4 Ne6+ Ke8 Neg7+ Kf7 Qcb2 Ne7 Re8 Ng8 Ne6 Qe7 Qh8 Qed8 Neg7 Qf6 R8e5 Be8 Re7+
Bqr5/q1bNK2P/6q1/BQbQq1k1/R1b3p1/4nnP1/B1q3b1/R1RN3n w - - 0 1 illegal: No possible last move
2q2nrB/1B2QN1q/K1Q1n2b/p4k1r/R7/PrQ2n2/qRr2P1r/R4N1n w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 h3 fxg4 Ke2 g3 Ke1 g2 Nf3 g5 Ng1 g4 Ne2 g3 Ng1 Bg4 hxg4 Qd7 Ke2 Qc8 Ke1 Qd8 Ke2 Kf7 b4 Ke6 d4 a5 b5 c5 g5 h5 b6 h4 b7 e3 d5+ Kf5 d6 e5 d7 c3 Kd3 e4+ Kc4 c2 Kb5 c4 a3 h3 g6 e2 g7 e1R Bg5 c1Q Ra2 h2 Nd2 c3 Qc2 Ne7 g8R Re3 Nb1 Qb2+ Qb3 c2 Qb4 c1R Nf3 g1Q Ra1 g2 Be2 Qc8 d8Q Rh5 Nc3 Ng6 Ne5 Bh6 Bf6 Nc6 b8Q Rc2 Qe7 Nf8 Qbd6 Qa2 Nd5 Nd8 Qc3 Nde6 Rg4 Rd3 Bg7 e3 Bf3 e2 Qdc6 e1N Bh8 Qf1 Nf7 g1R Bg2 Nf3 Ra4 Qe1 Rb1 Qe4 Rb2 Re1 Rg1 h1N Rf1 Ree3 Ra1 Rh2 Kb6 Qh4 Kb5 Re5 Kb6 Qh5 Kb5 Qg6 Kb6 Qh7 Ne3+ Kg6 Nf1 Reh5 Qce8 Kf5 Q8d7 Nd2 Bb7 Nf3 Qdc6 Rb8 Ka7 Rd8 Ba8 Rb3 Bb7 Nd7 Ka6 Rg8 Qd8 Ndf8 Qh4 Ng3 Qe7 Nh1
n1nqn3/3bp1Q1/bB2B3/4bR1P/q1R1PQ2/n1q2r2/1kq3QK/1N2Bq1N w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 h5 Ba3 a5 Bc1 axb4 f4 g5 Qb3 b5 Qa4 Ra6 Qd1 Rg6 Na3 hxg4 Nb1 g3 Qc2 g4 Qd1 Rg5 fxg5 Qd5 Nf3 Qd4 Ng1 Qd8 a4 Kd7 h4 Ke6 d4 Kd5 g6 f5 e3 c5 h5 f4 g7 c3 a5 g2 Kf2 b3 a6 c2 a7 b4 a8Q+ Nc6 Ne2 Kc4 Kg1 b2 d5 Kb3 d6 c4 e4 f3 d7 f2+ Kh2 g3+ Kh3 g1Q Qd4 g2 Ng3 c3 Qf6 Na7 Qd4 Nf6 Qd2 Ne8 Na3 b1N Bb5 f1B Qf4 Qd4 Qfb8 g1Q+ Kg4 Nd2 g8Q+ Nc4 Bh6 c1Q Qe6 c2 Qee5 Kb2 Bd2 b3 Qg7 Nb6 Bc4 Bh3+ Kh4 Ba6 Qf4 Nac8 Be1 Qf1 Nb1 Qd1 Qb7 c1Q Ra5 Qdc2 Be6 Na8 Rf5 Q1d1 Qa7 Qdc3 Qg1 Qdd4 Qh2 Qa4 Qg2 Rh6 Rh2 Rf6 Nh1 Bg4 Rh3 Rf7 Rf3 Bh3 Kg3 Bg4 Qh7 Bg7 Kh2 Bd4 Rc5 Be5 Rc4 Rf8 Qg3 Rf4 Rf2 Rf3 Qf4 Qb6 d8B Qb8 Bf7 Bd7 Bb6 Qc7 Qhg7 Qd8 Bc7 Ka1 Be6 b2 Bb6 Ka2 Rd2 Ka1 Rd5 Ka2 Nd2 b1N Ra5 Na3 Nb1 Kb2 Rac5 Bf6 Rf5 Be5
1Qb5/2b3b1/1pb2rb1/1Nn1R3/n1BqPk2/1BN1R1q1/qP2n1QB/3K1N1n w - - 0 1 legal: proof: f4 h5 d4 e5 d5 exf4 d6 cxd6 Nh3 d5 Ng1 d4 g4 hxg4 a4 b6 a5 Na6 Be3 Rb8 Bd2 Rb7 Bc1 Nb8 a6 Rh3 axb7 a5 Bd2 Rh5 Bc1 Rh8 h4 Ke7 c4 Kd6 e4 Ke5 c5 g5 h5 f5 c6 d5 c7 a4 h6 a3 h7 f3 Qe2 d3 Rh6 f4 Qh2 g3 Nd2 g4 Ne2 d4 Rc6 a2 Nb1 g2 Kd2 g1N Qh3 g3 Rd6 f2 Qg4 g2 Kd1 f3 Rg6 d2 Rg7 Nd7 b8N Qg5 Ng3 Nh6 Kc2 d1B+ Kd3 Nc5+ Kc4 d3 Kc3 d2 Ba6 f1N Bb5 f2 Rg8 Na4+ Kd3 Nf7 Rg7 Ne2 Nf5 g1B Ne3 Bh2 Bc4 Nfg3 Na6 f1B Nc3 Nh1 Qg2 Qg3 Rg5+ Kf4 Re5 Bg7 Rb1 Re8 h8Q a1Q Bb3 Re6 Qe8 Bd7 c8B Rf6 Nc7 Qa2 N7b5 Bc6 Bc4 Bb3 B8e6 d1Q+ Bd2 Qa1 Qb8 Qa2 Qg1 Bh3 Qg2 Qg1 Re1 Q1f2 Bed5 Bc8 Bc1 Bd1 Kd2 Bb3 Nf1 Qc5 Rg5+ Ne5 Be6 Qd6+ Bed5 Nd3 Re5 Bd1 Be6 Qd4 Bg8 Ng1 Re3 Bh5 Bgd5 Ne2 Kd1 Bg6 Be6 Bg1 Bb3 Bf2 Bec4 Be1 Nb1 Bb4 N1c3 Bd6 Bd2 Bc7 Be1 Qd5 Bf2 Qc5 Bg1 Qd4 Bh2 Ndc5+
3NBrnr/p1RqPQ2/P1rr3R/1n1r1B2/4r3/1R1Q2b1/1nN4n/2k2KBq w - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 g5 c5 gxh4 c6 bxc6 Ba6 c5 Bf1 c4 f3 e5 Qe2 e3 Kd1 e4 Kc2 Bf5 Qe1 e2 Qd1 e3+ Kc3 Be4 fxe4 Qe7 Kc2 Qd8 g4 Ke7 d4 Kd6 b4 e1N+ Kc3 h5 a4 c5 g5 f5 a5 h3 d5 Ke5 b5 Kf4 b6 h4 a6 h2 d6 h3 e5 Nc6 g6 Qd7 g7 Nd4 e6 Nd3 b7 Nb5+ Kc2 c3 b8R c4 Re8 Nb2 Bd3 Be7 Qe1 Bh4 e7 Bg3 Rc8 Rh5 Rc5 Rf8 Ne2+ Kf3 Bd2 f4 Na3 Rd5 Qb1 Kf2 Qa2 f3 Nf4 e2 Bf5 e1R Ne6 Ke2 Rc7 f2 Be3 f1N Rb1 Red1 Bb6 R1d2+ Kc1 c2 Bg1 R2d4 Qb3 Re4 Nd8 Ne3 Qc3 Ng4 Qf6 Kd3 Qf7 Kc3 Bd4+ Kb3 Kd2 c1R Nc2 Rce1 Ne3 Rd1+ Ke2 c3 Bb6 Rd3 Kf1 c2 Bc5 Kc3 Bd4+ Kd2 Bc5 Nc4 Rb3 Kc1 Bb6 Nb2 Bd4 N8h6 g8B Rd2 Bgh7 Ng8 Bhg6 Rd3 Rg1 h1R Bb6 Qe8 d7 Rh2 Rh1 Rd6 Nc6 R3d5 d8Q Qd7 Bc5 Rhd2 Bh5 h2 Bd4 Rh6 Bhg6 Rh8 Bc5 Qc8 Qd7 Rd6 Nd8 R2d5 Bh5 Nd4 Qb5 Qd7 Qd3 Nb5 Ng2 Red4 Ne1 Re4 Bg1 Kb1 Qc3 c1R Qd3+ Rc2 Bhg6 Kc1 Bh5 Rcc6 Nc2 Nc4 Qf6 Nb2 Be8 Rcc4 Qg6 Rcc6 Qf7 Ne5 Bf2 Nf3 Rg1 Bf4 Rg6 h1Q+ Bg1 Bg3 Rh6 Nh2+
Rbb1bq2/3b4/1kbn2qB/2r3P1/pB1bQq2/Q3R2K/P3r1N1/4NNqB w - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 bxc4 h5 Nd7 Rh3 Ne5 Rh1 Ng6 hxg6 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 Kd7 Kg2 Kc6 b4 h5 d4 f5 d5+ Kb6 g7 c5 d6 a5 b5 e5 d7 a4 Qd4 c3 Bc4 c2 Kh2 h4 Na3 e3 Bf1 f3 Bd2 c1Q Qb4 c4 Be1 e4 Qb2 f4 Bf2 h3 Ne2 c3 Nd4 c2 Ne2 Ne7 g8N Qb1 Nh6 c1Q Ng3 Ra5 Qg7 Nf5 Rg1 Bc5 Qd4 e2 Qd3 e1B Bd4 e3 Rh1 f2 Qe4 e2 Nc2 f3 Bg7 Qf8 Bg2 f1B Ng4 f2 Bh6 Nd6 Nge3 Bd4 Bf3 Bec3 Ng2 Qcf4 Nce1 Rh7 d8Q+ Rc7 Qee7 Qg6 Qde8 Rc5 Qe3 Ra7 Q8e4 Re7 Rd1 Be5 Rd3 Bcd4 Qc1 Bd7 Qa3 Be8 Nc2 e1Q Re3 Qd1 Nce1 Bc4 Rf1 Be6 Rh1 Bc8 Rf1 Ka5 b6 Re6 b7 Kb6 Rh1 f1B b8B Bfb5 Rf1 Bbd7 Rf2 Nb5 Bd6 Qa1 Be7 Bb8 Rfe2 Nd6 Rc2 Q4f7 Nf1 Ree5 Kg3 h2 Rce2 Re6 Kh3 h1B Rc2 Qf4 Rc1 Ra5 Rc7 Rc5 Ra7 Qb2 Ra8 Qf2 Bf6 Qg1 Be5 Ba1 Bc3 Bb2 Bd2 Bd4 Bb4 Rc2 Ng3 Re2 Nf1 Re5+ Bg4 Rf5 Bf3 Rc5+ Qe6 Bc6 Nh4 B6d7 Bd5 Be4 Bb7 Bd3 Bh1 Bb1 Nhg2 Be4 Qf5 Bec6 Qe6 Nf5 Qe4 Nd6+
2b2K1R/pR4Q1/P2nn1bb/N4Q2/4b1b1/1NbB1Qqr/P1b5/Bkb3Bn w - - 0 1 legal: proof: f4 b5 g4 h5 d4 hxg4 d5 e5 d6 exf4 b3 Na6 Bb2 cxd6 Na3 d5 Bc1 d4 Nb1 Rh3 b4 Ra3 Nh3 Rb8 Ng1 Ra5 bxa5 Rb6 Kf2 Rh6 Ke1 Rh8 Kf2 Ke7 h4 Kd6 c4 Kc5 e4 Kb4 h5 g5 e5 d5 c5 f5 e6 d3 c6 d4 e7 f3 Kg3 f2 e8Q f4+ Kh2 d2 h6 g3+ Kg2 d3 Kf3 g2 Ke4 g4 Ke5 g3 c7 f3 h7 Bh6 Qc6 Qd6+ Ke4 Ne7 Nc3 Nf5 Nh3 g1B Qd5 g2 Qc2 d1B Bb2 d2 Nb1 Qg3 Qa8 Nd6+ Kd5 Nc5 a6 Ne6 Bd3 f1N Qac6 f2 Na3 Bg4 Bd4 d1B Qb2+ Ka4 Qbc3 Bc2 Rb1 Bh2 Rb3 g1B Nc4 Bc1 Qb7 b4 Na5 Bh6 Rb1 b3 Nf4 Ka3 Ne2 Bc1 Qcc6 b2 Bb6 Bh6 Nd4 Bc1 Ndb3 Bh6 Rd1 b1B Qd7 Kb2 Qg7+ Qe5+ Kc6 Ng3 Be3 f1B Bf2 Rf8 h8B Rf3 Bb6 Bc5 Rd2 Ba3 Bg1 Bfh3 Qa8 Bb7+ Kd7 Be4 Ke7 Bb4 c8Q Bc3 Rf2 Re3 Rf7 Rf3 Bf2 Bg1 Bd4 Bge3 Qd5 Bd2 Bg1 Bc1 Qca8 Qf4 Qf5 Re3 Rh2 Nh1 Qad5 Qg3 Qf3 Nc5 Kf8 Bc8 Rb7 Bhg4 Qdf5 Ne6+ Ke7 Re2 Rh4 Rh2 Rh5 Rh3 Rh4 Nd4 Kf8 Ne6+ Kg8 Be5 Qff7 Bhg5 Qh6 Bc6 Bb5 Bg6 Bd3 Bgd2 Q7f5 Be4 Bf6 Bc2 Qg7 Kb1 Rh8 Bef4 Bfd4 Bh6 Ba1 Nc5 Kf8 Be1 Rd7 Bc3 Rb7 Ne6+
2Kbq1Bn/1R6/3QbQ2/kN1qqr2/1rRr2bp/3b3P/N1Prq3/3QR1B1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 Qd3 Nc6 Qd2 Nce7 Qd3 exf4 Qd1 f3 Nc3 f4 Nb1 Nf5 gxf5 Ra6 Kd2 Ra3 Ke1 Ra8 Kf2 h5 a4 d5 e4 Kd7 f6 Kc6 h3 Kb6 f7 g5 e5 b3 e6 h4 e7 g4 e8Q b2 Bb5 g3+ Ke1 g2 Kd2 d3 Kc3 f2 Kd4 f1B Ke5 d4 Nd2 b1R Ne4 d2 Qf3 d1Q Qa3 f3 Bg5 d3 Be3+ Ka5 Nd6 d2 Nf5 f2 Nd4 Rh5+ Bg5 Rb4 Ra2 Bg4 Qc3 Nh6 Nge2 g1Q Rb2 Be7 Qd7 Qe8 f8Q Bd8+ Kd6 Qg3+ Bf4 b6 Bc4 b5 Nc1 Bd3 Na2 f1Q Bg8 Qfe2 Re1 Rf5 Rb3 Qge3 Bh2 Q3e5+ Kc6 Rc8+ Kb7 Rc4 Qfd6 Nf7 Bg1 Nh8 Qa1 Qd5+ Q7c6 Q2e5 Kc8 Qde2 Qb1 d1R Rb2 Rd2 Qd1 Rb3 Rb1 b4 Nb5 Rd4 Rb2 Rc3 Rb3 Rc5 Rc3 b3 Rc4 b2 Qf6 Qdf7 Qd6 Rcd5 Qf6 Rd6 Qc7+ Rb6 Qcd6 Ka6 a5 Qfe6+ Qd7 Q6d5 Qdd6 b1B Na3 Ka7 a6 Rb4 Nb5+ Ka8 a7 Qdg2 Nc1 Ba2 Rc3 Bf7 Na2 Qgd5 Rc4 Qf8 Kd7 Kb7 a8R Qdg2 Nbc3 Qgd5 Rb8+ Ka7 Kc8 Qfe8 Qc6 Qed6 Qc5+ Ka6 Nb5 Ka5 Rb7 Q6e5 Qcd6 Be6+
1r6/1P2pN2/1q1q4/2rr1bqb/kNQq2b1/b1nBQ1R1/1B2PB2/1r1R1K1Q w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h3 g5 Nd2 g3 Nb1 Nc6 h4 g4 Bf4 Ne5 Bd2 Nf7 Bc1 Ng5 hxg5 Ba6 Bf4 Bb7 Bc1 Bc8 b4 h5 f4 a5 c4 d5 b5 Kd7 g6 h4 b6 Kc6 b7 d3 f5 a3 f6 d4 c5 Kb5 g7 g2 c6 h3 c7 h2 f7 g3 Bh6 a4 Ra2 Nf6 g8Q Ra5 Qg6 Bg4 c8Q Nd5 Qa8 Nc3 Qb8 Qd6 Qd2 Bg7 Qc7 Rb8 Nf3 g1Q f8B g2 Rc2 a2 Qh7 a1Q Qf4 a3 Qc1 a2 Qg6 Ka4 Be3 Rc5 Qh6 Qb2 Qb6 a1R Na3 Rb1 Bf2 Bf6 Qc7 Qbb6 Ne5 Bg5 Qd1 Bc1 Bg7 Bb2 Nf7 Bc1 Nc4 Ba3 Ne3 Bh5 Nd5 Bg4 Bh4 Qe3 Bf2 g1Q Nb4 Qg5 Qe6 Bh5 Bf6 Q1g4 Bh3 d2+ Kf1 d3 Qe3 Qgd4 Rg1 h1B Bf5 B1f3 Rg3 Bfg4 Qe1 d1B Rd2 Bc2 Rd1 d2 Bd3 Bb3 Qc8 Bd5 Qce6 Be4 Qc4 Bh7 Kg2 Bhf5 Qh1 Qdd8 Kf1 Q4d6 Re1 d1R Bh8 Rd2 Rd1 Q8d7 Be4 Rdd5 Bd3 Nb5 Ba1 Nc3 Bb2 Qdd8 Qcf4 Qh8 Qc4 Qd4
4QNr1/kqQr2n1/q1bB4/3n1rq1/B3p3/2RPbNNK/n1R1b1pP/7Q w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 f4 Kd7 Kf2 c5 Kg3 Kc7 a4 Kb6 a5+ Ka7 d6 e5 f5 g5 d7 b5 a6 b3 f6 b4 f7 c4 Ra2 e3 Ra4 b2 Ra5 b3 Na3 b1B Qe2 b2 Rb5 c3 Rd5 e4 Qf2 c2 Qf5 e2 Rd6 e1R Rb6 Rh7 Qb5 Ne7 Qa5 Nbc6 Qc3 Nf5+ Kg2 g3 Qf6 g4 Nc4 Nce7 Ne3 Nd5 Rd6 Ng7 Nf5 Qa5 d8Q Bd7 Bb5 Rf1 Ba4 Bc6 Nf3 Rc8 Re6 Bc5 f8N Be3 Qc3 Ba2 Qe8 b1Q Ba3 c1N Bd6 Qb7 d3 Bb3 Re7 Bd1 Rc7 Na2 Qa1 Be2 Qd1 Bd7 Rc2 Bc6 Qe7 Rd8 Qc7 Rd7 Rc3 Rh8 Rg1 Rg8 Qa1 Rb1 Rgc1 Qb6 R1c2 Rf1 Qc1 Rf2+ Kg1 g2 Ng3 Ka8 a7 Q6a6 Qe1 Bc1 Ne5 Rf5 Nf3 Bg5 Kf2 Bf4 Qh1 Bh6 Nf1 Be3+ Kg3 g1Q+ Kh4 g3 Kh3 g2 Ng3 Qc1 Qd8+ Qb8 Qe7 Kb7 a8Q+ Kb6 Qe5 Qbb7 Qae8 Ka7 Q5e7 Bd4 Q7d8 Qg5 Qc7 Be3
BRKQ4/1b1Q4/3r1qkb/B1b1pn2/q1p1r3/PNq1Q1P1/Rn6/r3Nn1R w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 c5 Kf4 e5+ Ke3 h5 f4 b5 d4 b3 f5 b2 g3 h3 f6 h2 a3 h4 d6 b4 d7 b3 d5 c4 d6 h3 Nf3 Ne7 Qc2 Ra6 Ng5+ Kg6 f7 Bh6 f8Q Bb7 Qf3 Nf5+ Kd2 e3+ Kc3 e2 Kb4 e1B+ Kb5 Bb4 Qcd1 Nc6 Qg2 Bc5 Qgd5 Nb4 Bd2 Nd3 Ba5 Qf6 Nd2 b1Q d8Q b2 d7 Qc1 Nb3 b1N Nf3 Nb2 Qe2 Nd2 Ne1 Qc3 Bg2 Rd6 Qe3 Nf1 Ra2 Rf8 Qb6 Rg8 d8R Rh8 Rb8 Rg8 Rg1 h1Q Qd8 h2 Be4 Qf3 Rh1 Qd1 Qc6 Rg7 Qcd7 Rh7 Rg1 h1R Bc6 Rh5 Rh1 Rh4 Bd5 Re4 Bc6 Bb4 Kb6 Bc5+ Kc7 Rf7 Nc1 Qa4 Nb3 Rd1 Bd5 Re7 Bc6 Re6 Bd5 Rd6 Bc6 Ba6 Bd5 Ra1 Ba8 Bb5 Kb7 Bc6+ Kc8 Bb7+
N7/N2q2Rr/1n3Q2/2rpb2Q/K1n1PNnq/B1r2P2/3pB1R1/qk2bQ1b w - - 0 1 illegal: No possible last move
4b3/7R/r1NnQQ1b/1KPN2Q1/R1Bb1q2/p1r1r2P/1RqBnpqn/k7 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 f5 e4 g5 c3 a5 h3 d5+ Kd3 a4 b6 g3 c4 f3 b5 f4 b7 f2 b6 a3 c5 f3 Qe2 g4 Qd2 g2 Qe2 g3 Qe1 Nf6 Be2 f1N Qc3 Nc6 b8Q+ Qc7 b7 Bd7 Bb2 Nh2 Qe1 Ne8 Bc3 Ra6 Qa7 Bh6 b8R Nd6 Bb4 Re8 Ra2 Re6 Ra8 Be8 Qc1 Re7 Kc2 d3+ Kb3 Kd4 e5 d2 e6 d1R Qg5 Rc1 Rb2 Rc4 Ba5 Rc3+ Ka4 Qb8 Qb6 Qc7 Bd1 Kc4 Ne2 g1Q Bc2 Qg2 Rd1 d4 Bh7 d3 Bg8 d2 Nd4 Qb8 Re1 Kd3 Re4 Kc4 Ra7 Kd3 Rf4 Kc4 Rf7 Qc7 Rh7 d1Q+ Nc2 Qc1 Nb4 Nd4+ Nc6 Ne2 Bf7 Kd3 Kb4 Qc2 Bg8 Rf7 e7 Rf6 Bb3 Re6 Bd5 Re3 Bb3 Bh5 e8Q Qb8 Qe6 Be8 Nd2 Qc7 Ne4 Qf7 Bd5 Qf5 Nf6 Qf4+ Bc4+ Kd2 Nd5 Kc1 Ra2 Kb1 Rb2+ Ka1 Ra8 Qf2 Qbd8 g2 Qdf6 g1B Raa7 Qg2 Ra8 Re4 Raa7 Bd4 Ra8 Nf7 Kb5 f2 Ra7 Rce3 Bd2 Rc3 Rb7 Ree3 Rb6 Ra8 Ra6 Ra7 Ra5 Ra6 Ra4 Nd6+
4Q3/3RrBR1/1r5p/NrQ1N1qn/q1Q1bb2/K2PnRP1/1pq2B2/bkn5 w - - 0 1 illegal: No possible last move
b1B2b1Q/1R6/Pqk1n2n/qRp1r3/B1rp1N2/5N1K/1Pq4Q/bN1nBr2 w - - 0 1 illegal: No proof kernel
1BR1N1rb/1p1p1b2/k2qQ1Q1/3rr3/P1N1N1q1/B1n1K3/3Pn1q1/B1R3nb w - - 0 1 illegal: No proof kernel forced: wxLB
1B1QNQ2/R2B1n2/3N3n/pR1pQ2r/P1n2b2/nPnqr1b1/3b4/K1R1r1k1 w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h3 g5 Qb3 g3 Qb5 g2 Kd2 g4 Ke1 g3 Qb3 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bd6 Bd2 Be7 Bc1 Bf8 Kd2 Ke7 Kc2 Ke6 a4 Kd5 f4 Ke4 f5 c5 f6 h5 b3 a5 Kb2 c3+ Ka2 d3 g5 h4 g6 c2 f7 h3 e3 d2 g7 h2 Nf3 g1N Bg2 c4 Nh4+ Nf3 Nf5 c3 Qe1 d1N Qe2 Na6 Qf1 Nb4+ Ka3 Nb2 Qa6 Nh6 g8R Bd6 Bh3 g2 f8Q g1N Rg7 Ng5 Qc8 Kf3 e4 Kf2 e5 Ne2 e6 Ngf7 e7 Bg3 Bf4 c1B e8Q c2 Nc3 Bd2 Nd5 c1B Nf6 Nc2+ Ka2 Nc4 Nd6 N2a3 Qe5 Rh7 Re1 h1R Nfe8 Ra6 Rb1 Nc3+ Ka1 Ra7 Re4 Kg1 Rd4 Ra8 Rd5 Ra6 Rb5 Rh8 Nb7 Re6 Bf5 d6 Qc7 Qd7 Qd8 d5 Bg4 Qd6 Rh7 Qa6 Nbd6 Re7 Bd7 Rh5 Qf6 Re1 Qe5 Rg8 Nc8 Qg6 Ncd6 Qd3 Rg7 Be3 Rh7 Bcd2 Rc1 Rg6 Rg7 Re6 Bc6 Nh8 Ra7 N8f7 Bd7 Re7 Qf5 Re6 Be5 Bg5 Bf4 Re4 Qe5 Re3 Qeh8 Rh2 Nb7 Rhe2 Bb8 B5f4 Nbd6 Rh2 Qe5 Rh5
2K2Q1b/k3Nr2/1p1Rr3/1b1R1B1n/rrP2pr1/Qn2N2P/6B1/nN1qBb2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 f5 Kf3 d5 c4 Kd7 a4 Kc7 e4 Kb6 a5+ Ka7 e5 g5 h3 g4+ Ke2 b6 Kd3 f3 e6 f2 h6 g3 a6 f4 e7 g2 e8N b3 h7 b2 Rh2 Nc6 Nf6 Bg7 Qa4 Na5 Ne4 Nb3 Ng3 Nf6 Nf3 g1R Bd2 Re8 h8Q Bd7 Qa3 Nh5 Nh4 Bb5 Be1 Re6 Qhf8 Bh8 Ngf5 Rg4 Ne3 Qd6 Be2 f1B Ng6 Qd7 Ne7 Qd8 Nd2 b1R Rg2 Rb2 Rd1 Qd7 Nb1 Qd6 Qg8 Rf8 Qg7 Rf7 Qf8 Ra2 Qc5 Ra4 Qa3 Rh4 Rg6 Rg4 Kc2 Qd7 Bd3 Qd8 Rf6 Qd6 Bg6 d3+ Kc3 d2 Bf5 d4+ Kc2 d3+ Kc3 Re5 Re6 Qd7 Rd6 Re6+ Rd4 Ra5 Kb4 Qd8 Rd5 Qd7 Rc1 d1N Rc3 d2 Rcd3 Nc3 Rd6 d1R R3d5 Ne2 Rd4 Qd8 R4d5 Ka8 a7 Na1 Bh7 Nd4 Bf5 Kb7 a8B+ Ka7 Bb7 Ndb3 Ba8 Bd7 Bc6 Ra4+ Kb5 Bc8 Ba8 Ba6+ Kc6 Rd2 Bb7 Rb2 Ba8 Nc5 Bb7 Rbb4 Ba8 Ncb3 Bb7 Qe8+ Kc7 Qb5 Ba8 Qc5+ Bc6 Bb5 Kc8 Qd4 Rc5 Reg6 Bg2 Qd1 Rcd5 Re6
2brR3/6QQ/Pp3R1B/pBrb2B1/1Q2b1rr/1n1q1r2/PnK3Nk/3N2n1 w - - 0 1 illegal: No possible last move
K7/N6P/1QRnp1RB/4B3/rnb1p2Q/qbP1nRNB/b1k4r/rb2b3 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Kd2 Kf7 h4 Kf6 a4 Kf5 f4 d5 h6 b5 h5 g5 h7 g4 h6 g3 a5 d3 Ke3 d2 Kd4 b3 Kc5 b2 a6 b4 a7 g2 Nf3 g1R Rh3 b3 Qe1 d1B Ne5 Nf6 Nd2 b1B Rc3 b2 Nc6 Ba6 Qh4 Bc4 Ra6 Qd6+ Kb6 Qa3 Kb7 Bba2 Bh3+ Rg4 Rg3 b1B Nf1 Ne8 c3 Bdb3 Rb6 Na6 Rg1 Nb4 Ng3+ Ke6 Rg2 d4 f5+ Kd5 f6 d3 f7 e6 Ra6 Bc5 f8R d2 Rf3 d1N Bd2 Bf2 Bf4 Rf8 h8B Be1 h7 Ne3 Bh6 Rf5 Be5 Rh5 Ne2 Rf4 Rg6 Rg4 Rb6 Rg1 Ng3 Rh1 Ne7+ Kc5 Rc6+ Kb5 Nc8 Ka4 Bh8 Ra5 Be5 Rh2 Ne7 Rd8 a8Q Rd1 Qa7 Nd6+ Ka8 Bbd3 Bh8 Bbc2 Rc8 Kb3 Rc6 Ra1 Nc8 Ra4 Be5 Bd1 Qa6 Bdb1 Na7 Kb2 Qa5 Bdb3 Qb6 Kc2
3nnk2/1B3PRB/r2P4/5r2/R2p1Kn1/brnb2Q1/pb1QNn1B/1Q2q1N1 w - - 0 1 illegal: No proof kernel
1n3Q2/1rP1r2r/pK3BNb/3bR2r/1Q1B3N/3nP1k1/1qr1Bp1R/2b1Nn2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 h4 Ke5 b4 d5 Qd2 Nc6 h5 g5 h6 f5 h7 f3 c5 a6 b6 f4 b5 g3+ Ke1 d3 b7 d4 b8N g4 b6 g2 Kf2 g3+ Ke1 Nf6 b7 Nd7 Qb2 d2+ Kd1 Qf6 Kc2 d1R Kb3 Ra7 Kc4 Nb4 c6 Rd2 c7 Rc2+ Nc3 d3 Qb1 d2 Ra3 d1R Rh2 Rd5 Bb2 Bh6 Ra5 Qb6 Rc5 Nd3 Nc6+ Kf5 b8Q Kg4 Ra5 Rh5 Nd4 Bb7 Qf8 Nb8 Nf5 Ba8 Nh4 Bc6 Nh3 g1B Ng5 g2 Rf5 Bd4 e3 g1R Ba1 Bc5 Qb2 Ba3 Be2 Nb4 Qb3 Bc1 Bb2 Qb7 Kc5 Rd1 Qc4 Rd7 Nd5 Re7 Bd3 f2 Ngf3 f1N Bd4 Ba4 Be2 Bb3 Re5 Kg3 Ne1 f3 Nf4 f2 Nfg6 Ba2 Qc3 Bd5 Qc4 N4c6 Qc3 Qb2 Qc4 Nb4 Kb6 Nd3+ Qb4 Rg8 h8B Rgg7 Re6 Rgf7 Bhf6 Rh7 Re5 Rb7+
n2B1rnQ/2pR1Q1P/1bN2bK1/Nqr5/k3b1r1/3pr3/BP2B2r/n2RQ3 w - - 0 1 illegal: No possible last move
RbrnK1r1/1p4Pp/b2QR1r1/Bn4RQ/4Nr1b/1B2Pr2/3q1N2/k1n2Q2 w - - 0 1 illegal: No possible last move, all moves rejected
B2n4/n2r2r1/2r1bB2/k2q3B/brR1pN2/1R1PP3/1Q1R1Np1/Qr2q1Kn w - - 0 1 illegal: No possible last move, all moves rejected
Qn4rB/1B3N1k/8/8/Rpq1pBNq/P1NPQ1nR/b4qKb/2n1nr1n w - - 0 1 illegal: No possible last move
Q1Qb1NR1/b2Q2q1/1q2bn1k/BbN1K1pb/5r2/1R1B1P1p/4q1NP/1n2r3 w - - 0 1 illegal: No possible last move, all moves rejected
bBq4b/qn1B1k2/2Rrn1N1/1N1PQ3/b4K2/2pr1p2/1PNQ4/R2Rbq1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 h5 Kf3 c5 e4 a5 d4 f5 g4 c3 e5 c2 b6 a4 e6 c4 e7 a3 g5 a2 g6 c3 g7 h3 b7 h4 Qd3 h2 Qc4 h3 Qe6 Nh6 g8N Bd7 Qe5 Ba4 Be3 c1B Qg7 Na6 b8R Nc7 Bg2 Qc8 Rb6 Nf7 Qg3 Nd8 Rc6 Ra6 Qh4 Bg7 Rc4 Nb7 Rc6 Ne6 Na3 Bd2 Qg5 Kf7 Ne2 Be1 Nc2 Rh5 Bf2 Bh8 Bg3 Rh4 Rg1 h1B Rf1 h2 Rg1 Bf2 Rgd1 Rh3 Qh6 Be1 Qg5 Nc7 Qh6 Rb6 Qd6 Ne6 e8Q+ Kg7 Qed8 Kf7 Ne7 Ra6 Qe5 Rb6 Rab1 a1Q Ng6 Qa2 Ra1 Qa3 Rc4 Rd6 Rc6 Qc5 Qa5 Qa7 Qab5 Rh7 Qd3 Rg7 Qd2 Rg8 Nc1 Rgd8 Nb3 R8d7 Na5 Rd8 Nc4 R8d7 N4a3 Rd8 Ke2 f3+ Ke3 f2 Nb5 f1Q Bh3 Bf3 Bg4 h1B Bh3 Nec5 Kf4 Bd5+ Kg5 f4 Bd7 f3 Kf4 Na5 Ra6 Ba8 Rb6 Nab7 Rc6 Re8 d5 Ree6 Qg5 Re3 Qe5 Rd3 Bh4 Qa6 Bd8 Qa5 Bc7 Qa7 Bb8 Ne6+
2K1Q2r/2qB3B/1BR1Rn2/2p3P1/n2qb2p/2bbrq1Q/bN1P1k2/4R1Nb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 f5+ Kd4 c5+ Kc3 Kd5 g4 Ke4 b6 h5 e3 f3 g5 a4 b5 f2 b7 f4 b6 f3 Na3 h3 Rb1 h2 Bb2 h4 Qb3 Bf5 Re1 Nd7 b8R Ngf6 b7 Qc7 Rc8 Nb6 b8Q Bg7 Bh3 Bh7 Bd7 f1B Re2 f2 Bf5+ Ke5 e4 Kf4 e5 Kg3 e6 Bh3 e7 f1B Re4 Bd3 e8B Kf2 Re6 Bg8 Bd7 Bg2 Bh7 Bge4 Rce8 Bf7 Rc6 Ra7 Ree6 Rb7 Nb1 a3 Qe8 a2 Ba3 Ra7 Bb4 Ra3 Ba5 Bg8 Nf3 Bf7 Re1 h1B Ng1 Bg8 Kb2 Bf7 Nc3 Bg8 Na4 c3+ Ka1 c2 Kb2 Bf7 Kc3 a1Q+ Nb2 Qd1 Bg6 Qf3 Bh7 Ra4 Qa3 c1Q+ Kb3 Qa1 Kc3 Nc8 Bb6 Rc4+ Kb3 Rc3+ Ka4 Rb3 Ka5 Rc3 Red6 Ba2 Re6 Rb3 Nc4 Qd4 Ka6 Bc2 Nb2 Re3 Ba7 Nb6 Qd3 Qcg3 Kb7 Na4 Kc8 Qgf4 Qb3 Bcd3 Bb6 Q4g3 Qd5 Qd6 Qf5 Qe7 Qh3 Qd8+ Kb7 Qc7+ Ka8 Qc3 Ba7 Ng8 Bb6 Qc4 Qf5 Bc3 Qh3 Qh2 Kb7 Nf6 Kc8 Qd4 Rc7 Qhe5 Rcc6 Qc7+
1B6/3q3n/1b4qK/1P1Q3B/1NP1nR1R/1R1pq3/bBN1rrpq/q1Qr2k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 b4 f5 h5 d5 h6 a5 h7 g5 b6 g3+ Kf3 a4 b5 g4+ Ke2 d3+ Kd2 Kd4 b7 f3 e5 g2 e6 a3 e7 f2 e8Q a2 Nc3 g3 Qee1 f4 Be2 f1Q Bh5 f3 Qe8 f2 Be2 Qd7 Rh6 Nf6 Bg4 Na6 b8R Bc5 Bh3 Rf8 h8B Bb6 Be6 Nc5 Rb1 a1Q Bb2 Ra2 Qf7 Re8 Bg4 Ne4+ Kc1 Ke3 Rh4 d4 Bh5 Rf8 Qd5 Qe1 Nf3 Nh7 Be5 f1Q Ra8 Kf2 Bb8 g1Q Ra4 Qee2 Ne1 g2 Rb4 Qh2 Rc4 Ra6 Na2 Kg1 Nb4 Ra2 c3 Qeg4 Nec2 Qg6 Qe1 d2+ Kd1 Kh1 Rf4 Qfg1 Ke2 d1R Kf3 d3 Qd2 Qd4 Qc1 Re8 Rh4 Kg1 Rf4 Re6 Rh4 Qgf7+ Kg4 Qe3 Rd4 Nd2 Rf4 Ne4 Ba3 Bb7 Rb3 Ba8 Bb2 Qf6 Qg5 Bd5 Qe5 Bc4 Qd5 Qg6+ Qg5 Bc7 Ba3 Qge8 Ne1 Qc5 Rb2 Ng3 Qd5 Bb6 Rb1 Bb3 c4 Rf2 Nec2 Ba2 Rb3 Qce7 Bb2 Ree2+ Qf5 Qe3 Qe6 Nf6+ Kg5 Nge4+ Kh6 Nh7 Qd5 Qg6+
nR4n1/R1bBq1B1/1Qn5/1pNqN1n1/1rr5/nB2p1Q1/PP2Nb2/K1b1k3 w - - 0 1 illegal: No proof kernel
1Bbq2n1/q4Nn1/k5r1/p1P2B1p/P1rRbb2/4N1q1/1N2QR2/BKQ1q2q w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 d4 Kd7 Kd2 Kc7 Kc2 f5 g4 a5 e4 b5 a4 Kb7 e5 b4 e6 f3 g5 h3 g6 f2 e7 c3 e8Q f4 g7 f3 d5 h2 d6 Na6 d7 Bd6 Qe6 Nc7 Bb2 Ra6 Bh3 f1Q Qc1 f2 Nf3 Ne8 Ne1 Qg1 Nd2 f1Q Ng2 b3+ Kb1 Bf4 Ne3 Qg3 Ndc4 h5 Qg4 Rg6 Ra2 Ka6 Ba1 b2 Qe2 Qfg2 Rd1 h1Q Rd4 Qb7 Bg4 Qa7 Bf5 Rhh6 Qg1 Rg4 Qc1 Qdc7 d8B Rhg6 Be7 Qd8 Bd6 Rh4 Bb8 Qhe1 Ra3 Rhg4 Rb3 Qh1 Rb7 Rh4 Rf7 c2+ Ka2 b1B+ Kb2 Ne7 g8N Ng7 Nh6 Ng8 Rf8 Ba2 Nf7 Bb3 Nce5+ Bc4 Nd3 Bd5 Ka3 Ba8 Ka2 Be4 Nb2+ Kb7 Qcd1 c1Q Qdc2 Qce1 Qc1 Bd5+ Kb1 Be4+ Qc2 Rh2 Qd3 Rc2 Qe2 Rc4+ Nd3 Qgh2 Be6 Qe8 Nh6 Bd6 Rf2 Bf4 Nf7 Qd8 Bg4 Ka6 Bf5 Bg2 Nb2 Qg3 Qf1 Bf3 Qe2 Be4+
1N2b1k1/R2qB1b1/3R1rbp/1N1b2Q1/P1Pr2Rn/1B1Nn3/1Q4p1/b1Kq2n1 w - - 0 1 illegal: No proof kernel
q5RK/2rR1r1r/1k2b1P1/qpb4r/n2Q4/pb2B2B/QnBNPN2/4Qr2 w - - 0 1 illegal: No possible last move, all moves rejected
B2k2n1/Q1q1r1n1/1nnqnP2/1R4b1/QBRp4/RK1qNPp1/3r3B/1bN5 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 g5 h4 b5 a4 d5 c4 e5 Kc2 e4 f3 e3 c5 b3+ Kb2 e2 c6 e1N f6 b4 a5 g3 a6 g2 a7 g4 h5 g3 c7 d3 h6 d4 h7 d2 Rh2 Qd6 Nh3 g1Q Rg2 Nc6 Rh2 Bh6 Be2 Bg5 Na3 Bf5 Nc4 Ng2 Ne3 Nf4 Bc4 Ne6 Bd5 Bb1 c8R+ Kd7 Rc7+ Kd8 Nf2 Qf1 Rh4 Qd3 Ra3 Rb8 Qc2 Rb7 Rh5 Qc4 Nd3 d1N+ Ka1 Qcc5 Bd2 Qb6 Nc1 Qa5 Be1 Qac5 Bf2 Qb6 Nf5 Ne3 Kb2 Qa5 Bg1 Qac5 Rf7 Re7 Bh2 Qb6 a8Q+ Qbb8 Qa7 Qbc7 Nh4 Nf5 Ng2 Nfg7 Qc4 Bf5 Ne3 Be4 Ka1 b2+ Ka2 b1N Kb3 Nc3 Qca6 Bb1 Qa4 Nf5 Be4 Nd5 Rg7 Nb6 Rf7 Ne5 Ba8 Nc6 Rg7 Bh6 Rgg5 Nfg7 Rb5 Bf4 Rhc5 Bg5 Kb2 b3 Rc3 Nh6 Rc4 Rhe8 h8B Ng8 Ra2 Qf4 Ka3 b2 Kb3 Qfd6 Ra3 Nf8 Nc2 Re2 Ne3 Re7 Q7a6 Rd2 Qa7 Nf5 Bg7 Ne6 Bf8 Nfg7 Re5 Nb4 Ra5 Nc6 Rb5 Bh7 Bg1 Qe5 Ne2 Rf7 Bc5 Re7 Bb4 Qed6 Nc1 Be4 Ra1 Bh7 Bh2 b1Q+ Ka3 Qe4 Kb3 Bf5 Ra3 Bg6 Ng4 Qe2 Ne3 Bb1 Qb7 Qf1 Qba7 Qd3+
K2Nr3/3b1N2/1B3p1B/1k2p1rB/2rR1Q2/nP5q/2b1bPnb/Rb1NQ2q w - - 0 1 legal: proof: Nf3 b5 Nc3 c5 Nb1 b4 Ng1 b3 axb3 c4 Ra5 c3 Ra2 Qa5 Ra1 Qd8 e4 cxb2 h4 g5 e5 gxh4 e6 dxe6 Rh2 e5 Rh1 e4 Ke2 Kd7 Ke3 Kc6 g4 a5 d4 h5 c4 f6 c5 h3 g5 h4 g6 a4 g7 h2 Bd2 h3 Bd3 a3 Bc1 a2 Nd2 b1B Nf1 Nh6 g8N Ra5 Kf4 e3 Ke4 e2 Ne3 e1R Nf3 Nf5 Nh6 Nd7 Nf7 Ne5 N3g5 Nh4 Ne6 Nc4 d5+ Kb5 c6 Bd7 d6 Qc8 Kd5 Ng2 c7 Rh4 Bg6 Na3 Bh5 Rc4 Ned8 Bc2 Rf1 h1B Qe2 h2 Nd1 Bh6 Qe3 Bg5 Qf4 Bh4 Rg1 Re6 Re1 Bg3 Re4 Bb1 Rd4 Bc2 Rb1 a1Q Be3 Qc3 Ra1 Qa8+ Nb7 Qh8 c8Q Qd3 Qc7 Qf5+ Qe5 Qh3 Bh6 Qb8 Bd2 Nh4+ Qe4 Bf3 Rc1 Qa8 Bc3 Bc8 d7 Bf4 d8B Bd7 Bb4 Bd6 Ra1 Ka6+ Bc5 Bb1 Rd3 h1B Qb8 Be5 Bb6 Bh2 Qe5 Bhg2 Qc3 Bg4 Qe1 Be2 Qf3 Ree4 Qg3 e6+ Kd6 Re3 Kc7 Be4 Nbd8 Bf5 Qd6 Qh1 Kb8 Ng2 Ka8 Rb5 Rd5 Bfc2 Bb4 Rbc5 Bd2 Kb5 Rd4 Ree5 Bh6 Rg5 Qf4 e5 Nb7 Rc6 Nbd8 Re6 Bg7 Re7 Bh6 Re8
2qN3n/2nbQ2R/1R2P3/k1P1p1Bn/nR6/Np3QqB/1r2Qb1K/n2rb3 w - - 0 1 illegal: No proof kernel
3BN2B/2r1Kn2/Rn2p1Q1/2nq2P1/p1QnNk1r/q6r/P2bbn2/Q1R3R1 w - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 bxc5 gxf4 g5 h6 Be2 h5 Bg4 hxg4 Kf2 Kd7 h4 Ke6 c4 Kf5 d4 a5 d5 b5 d6 e3+ Ke2 g3 Kf3 g2 h5 b4 h6 e6 c6 b3 c5 e2 h7 e1N+ Ke2 a4 c7 b2 d7 f3+ Ke3 f2 Kd4 f1N c6 Nf3+ Kc4 Ng3 Rh3 Nh6 Na3 b1R Qe1 Ra7 Qe2 Nd4 Nb5 Rb3 Qd3+ Ne4 Rg3 Bb4 Bb2 Ba6 c8R Rc7 Nf3 g1N Rc1 Kf4 Nd2 Nh3 Rgg1 Nc5 Qg6 f5 Ne4 Nf7 Bc3 Qf8 d8B Nbd7 Ra8 Nf2 Bb2 Bd2 Ra7 Rg8 h8Q Rh3 Qhg7 Rgh8 Bc3 Bb7 Nbd6 R8h4 Ne8 Nb6+ Kb4 Qd6 Ra6 Qd5 Q7f6 Ke3 Qfg7 f4 Qe5 f3 Qh8 Re7 c7 Kf4 c8Q Bc6 Qhg7 Bb5 Qc6 Be2 Qb5 Nh1 Qc4 f2 Qh8 f1Q Qhg7 Nc2+ Kb5 Qg2 Bf6 Qd3 Kc6 Qa3 Bb2 Nf2 Qgc3 Nh6 Kd6 Nd4 Ba1 Rg7 Bb2 Nf7+ Ke7 Qg4 Ba1 Qf5 Qb2 Qd5 Qb1 Rh5 Bb2 R5h4 Qa1 Rgh7 Bc3 Nc2 Bf6 Nd4 Bh8 Ne5+ Kf8 Re7 Qb4 Rc7 Qc4 Rc8 Ke7 Nf7 Ra8 Rc6 Ra6 Rc7+
q2NKR2/3Q1Q1r/1rRP1B2/1b5n/Bn1bkq2/q1b1N1P1/2Nb1pp1/4b2R w - - 0 1 illegal: No proof kernel
3R1brN/2b5/RqrPn1R1/6Nb/2ppK3/3P2k1/B1Q1q1Nn/b2QbrB1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 d4 Ke2 Qd5 cxd5 fxe6 Ke1 e5 Bd3 e4 Be2 Nd7 Bf1 Nb8 Ke2 Kf7 h4 Kg6 a4 Kf5 f4 g5 a5 b5 h5 c5 h6 e5 d3 b3 a6 e3 h7 e4 a7 c4 Nh3 g3 Nd2 Kg4 f5 g2 f6 g1Q f7 b2 Rb1 b4 Nf2+ Kg3 Qe1 b3 Ng4+ Qf2+ Kd1 Nf6 Nh2 g4 Bg2 Na6 Rf1 Nc7 Rg1 Ne6 Ra1 b1R Ndf3 b2 Ra6 Rg8 h8N e2+ Kd2 Bb7 Nh4 Rc8 a8Q Rc6 N2f3 Bc8 Ng5 e3+ Kc2 Bd7 Qd1 Be8 Bf3+ Qg2 Qb7 e1B+ Bd2 e2 Be3 Bd2 Qb3 e1B Be2 Ba5 d6 Bc7 Qa4 Bc3 Qa2 Bh6 f8R Bh5 Rd8 Bf8 Qd2 Rf1 Qd1 Kh2 Bf2 g3 Qb3 Qe4 Ng2 Ng4 Be3 Bb4 Qc3 b1Q+ Kd2 Bba5 Bf3 Qb6 Ke2 Bb4 Qcc1 Bc3 Qcc2 Qe5 Ng6 Ba1 Nh8 Rc5 Bc6 Qe4 Ba4 Rc6 Bb3 Qe5 Nf4 g2 Ba2 Kg3 Rh1 g1B Ng2 Be8 Rh6 Bf2 Rf6 Be1 Rg6 Qf6 Bg1 Qe7 Rf6 Bh5 Rg6 Qe8 Bf2+ Kh2 Kf3 Qe7 Ke4 Qe8 Be3 Kg3 Bg1 Nh2 Rc8 Qf7 Re8 Qf2 Rd8 Qe2+
2BNQbk1/1BbRqrn1/r2Pb3/Kp2q1N1/1P2Q2N/8/2bp1nqb/2R2B2 w - - 0 1 illegal: No proof kernel
q5Bk/r1q2R2/2bpB1pn/BN2bP1Q/1QPN4/4R1qn/2r2qn1/2K1Q1q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 h4 e5 f4 b5 a4 e4 c4 b3 h5 g6 h6 b4 f6 d6 h7 d3 a5 b2 f5 e3+ Ke1 b3 a6 g3 a7 d2+ Ke2 g2 Rh6 Bg7 Nc3 b1Q Nf3 g1Q Qe1 d1N Bg2 b2 Nh4 Nf2 Ra6 Qc2+ Bd2 b1Q Ra1 Bd7 Nb5 Nh3 Nf3 Na6 Nfd4 Bc6 Ra3 Nc7 Bd5+ Ne6 Rc3 Kf8 f7 Qba2 Rh5 Qe4 Kd1 e2+ Kc1 Qc7 Re3 Nh6 Ba5 Nef4 Be6 Be5 Rh4 Kg7 Rh5 Rad8 a8B Ng2 Bb7 Rb8 Ba8 Rhg8 f8Q+ Kh8 Qd8 Rb7 Qb8 Ra7 Bb7 Qf3 Bbc8 Rf8 Bg8 Qg3 Bce6 Re8 Qb6 Qa4 Qc5 Rea8 Qb4 Rb8 Qd1 e1Q Rh4 Qef1 Qde1 Qff2 Rh5 Kg7 h8Q+ Kf8 Qf1 Raa8 Qb1 Nf7 Na3 Bf3 Be1 Bc6 Rh7 Rb2 Nab5 Qa6 Ba5 Rc2+ Kd1 Qac8 Qb4 Ra7 Qfe1 Q8b8 Rg7 Qa8 Qh5 Nh6 Re7 Qcc8 Rc7 Qd7 Rb7 Kg7 Rc7 Kh8 Rb7 Qdd8 Rf7 Rd2+ Kc1 Qc7 Qf3 Rb2 Qh5 Rc2+
6nq/q7/1QqpkP1b/b3nRBR/3P2pr/2r1q3/1RB1Q2N/1qBK2Nr w - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 a5 Bg2 axb4 Bf1 h5 c4 hxg4 Ba3 b5 Nc3 b3 Nb1 b4 Bb2 Ba6 Bc1 Bb5 cxb5 Ra6 Nh3 Ra4 Ng1 Ra8 h4 Kf7 a4 e5 f4 g5 a5 c5 f5 e3 a6 b2 h5 c4 b6 e2 h6 d6 b7 c3 a7 g3 Nf3 b3 h7 g2 d3 Qf6 Ra5 g1Q Be3 g4 Ra6 e4 Ra2 c2 Bg5 c1Q Nc3 Nc6 b8Q b1R d4 b2 Qb6 Rc8 a8R Qge3 Rh4 Qe7 f6 Ke6 R8a5 Qa7 Rf5 Ne5 Rh3 Qf4 Bg2 Qh2 Rh4 Qh3 Nh2 Qce3 Bh1 Rc1 Bf3 b1Q Rb2 Rc4 Bg2 Qef3 Bf1 Qh1 Kd2 e1B+ Ke2 e3 Bg2 Qa5 Be4 Qa7 Bc2 Bd2 Qf1 Qc6 Qg2 Rh1 Qf1 Qba2 Kd1 Bg7 Ne2 Ba5 Ng1 Rc3 Qd3 e2+ Kc1 e1Q+ Qd1 Qf2 Qe2 Ne7 Kd1 Qb1+ Bc1 Qfe3 Rh6 Rg8 h8B Bf8 Bg7 Rh8 Rh7 Ng8 Bh6 Qh4 Bg5 Qh6 Rf7 Qg7 Rd7 Rh4 Rf7 Qh8 Rh7 Bg7 Rh5 Bh6
2N2r2/N1nbN1BR/KP1q2b1/QR2b1kB/4P3/pb2q2p/1bB4r/Q1n1r3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 g4 Ke7 d4 Kf6 Kd2 h5 Kc3 a5 b4 c5 b6 f3 b7 f2 b5 a4 b6 a3 e3 h3 d5 h2 d6 h4 d7 Kg5 Ne2 f5 Qd4 f4 Qd6 f3 Qd4 Na6 b8N Nh6 Nf4 Nf5 Ng6 Bg7 Nd2 Nc7 Bd3 f1R Nc6 f2 Na7 Be5 Rb1 Ng3 Bc2 Re1 Ne7 f1B Rb5 Bd3 Bb2 Bg6 Ba1 Qf8 d8Q Bd7 Qc8 Qh6 Qa6 Raf8 Qa5 Rh7 Rf1 h1B e4 Bf3 Rh1 Bd1 Rh3 Nh5 Rh1 Nf4 Rh2 Nd3 Rh3 Kf4 g5 Nc1 Rh1 Bge8 g6 Kg5 g7 Qd6 g8B Bg6 Be6 Rhh8 Bg4 Rh6 Bb1 Bb3 Bc2 Rh5 Nf1 Rh7 Ne3 Rh6 N3d5 Rh5 Be2 Rhh8 Kd2 c3+ Ke3 c4 Nec8 Rh6 Nde7 Rh5 Rf1 Rhh8 Rf7 Rh5 Rh7 Rh6 Bb1 c2 Bb2 c3 Ba1 Na2 Kd3 c1Q Bh5 c2 Bb2 Qf4 Bc3 c1B Bc2 Qb4 Ba1 Bb2 Qc3 Qd6+ Qd4 Ba4 Kc4 Qe3 Qd1 Bc1 Bd4 Bb2 Qa1 Nc1 Bc3 Qdd2 Bd4 Bb3+ Kc5 Bde6 Kc6 Bd7+ Kb7 Qb4 Rg7 Rhh8 Rh7 Qd6 Bc3 h3 Bd4 Rf2 Bc3 Rh2 Bd4 Nd5 Ka6 Rf8 Bc3 Bf4 Bh8 Bfe5 Bg7 Nc7+
1br2Br1/2b1q3/PQ2Rnr1/1Pb1n1pB/Nk1q4/5b1R/3RKpbQ/1N5Q w - - 0 1 illegal: No proof kernel
b4BRr/3b1n1P/1P1K2bp/1R3b1Q/1N1N2B1/2bQ2Q1/3p1qq1/qB1r2kn w - - 0 1 illegal: No proof kernel
2qrB1nN/2qQ3P/kpB1bQ2/pR6/1n2bB1N/1PN1n2q/R2Kr3/4n1n1 w - - 0 1 illegal: No possible last move, all moves rejected
K2QB3/Bb1RbNP1/2RPrB1Q/2Qbn1p1/np6/b2b1r2/q7/kq3rN1 w - - 0 1 illegal: No proof kernel
B3R1nr/rNN3pq/6Q1/P4Brn/3N2rP/1K1bb1pR/2q3kr/2Q2nB1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kc2 f5 a4 c5 h4 b5 e4 b3+ Kb2 f3 a5 f2 Nf3 g3 Be3 b4 Bh6 f4 Na3 c4 Rb1 c3+ Kc1 c2 Kb2 c1R Bh3 f1N Bg4 Ba6 Rh3 Ra7 Bf5 Qc7 Ra1 Rc4 Qc1 Nd7 Bg5 Ndf6 e5+ Ke7 e6 Kd6 e7 Nh5 e8B Rc2+ Kb1 b2 Ka2 Bd3 Kb3 Rh2 Bc6 Be7 Bh6 Bg5 Ba8 Qc8 Ra2 b1R+ Rb2 Ra1 Re2 Ra2 Re8 Qc6 Ne1 f3 Nec2 Be3 Bg5 f2 Bd8 Ra1 Bb6 Qb5 Rc8 Qc6 Nb5+ Ke7 d6+ Kf6 d5 Ke5 d7 Kf4 d8Q Kf3 d6 Ra4 d7 Kg2 Ncd4 Qe4 Kb2 b3 Nc7 Rc4 Ka3 b2 Qg5 b1Q d8N Qc2 Nb7 Rc5 Re8 Rc4 Bc8 Qh7 Qg6 Rc5 Be6 Rg5 Bc5 Nd2 Kb4 f1R Bf5 Rf4 Ka3 Nf1 Kb4 Qd2+ Kb3 Rfg4 Ne2 Bf4 Bg1 Be3 Nd4 Qc2+
2n4b/2Br1Bpk/b3P2p/KQ1P1R2/2NRr1n1/1rn2N1n/qn1NR1q1/2Q5 w - - 0 1 illegal: Other
NQn1Knk1/4Qpr1/q4nnq/1N1bBR2/1b3PP1/2N3RB/B2r1qp1/7n w - - 0 1 illegal: No proof kernel
2r5/1b1n1p1Q/B2bb3/k1p1RNQB/3N1N2/3PrPRq/1K5q/1b1brn1R w - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 b5 axb5 e5 d3 g5 Kd2 gxh4 Kc3 e4 Bd2 e3 Kc2 exd2 g4 Kd7 b4 a5 e4 c5 g5 Kc7 g6 Kb6 e5 h5 e6 h3 e7 c3 e8R h4 g7 a4 Qh5 a3 Bg2 a2 Qg5 h2 Nh3 Qd7 Re5 Ne7 g8B Nd5 Bh7 Bd6 Na3 Re8 Rag1 a1R Bg6 Re1 Nf4 h3 Bh5 d1B+ Kc1 c2 Kb2 Ne3 Bb7 Qe6 Rg3 Nf1 Ba6 Nd7 Nc4+ Ka7 Nd2 Kb6 Nb3 Qg4 Nd4 c1Q+ Ka2 Bb7 Nf5 Qd2+ Ka1 Rac8 Kb1 Bc2+ Kb2 Kc7 b6+ Kc6 Rd5 R8e3 Re5 Bb1+ Kb3 Ba8 b7 Kb6 b8Q+ Bb7 b5 Ka5 b6 Bf3 b7 Bd1+ Ka3 Qh4 Qa8 Qc2 b8N Qe2 Rhg1 h1B Qe4 Qeg4 Kb2 h2 Qf3 Bg2 Rh1 Qgh3 Qe2 Bd5 Nc6+ Ka4 Qf3 Be6 Ncd4 Ka5 Qa8 Rc6 Qh8 Rc8 Rhg1 h1B Qh7 Bb7 f3 Kb6 Rh1 Ka5 Rg2 Q4g3 Rgg1 Qgh2+ Rg2 Bbc2 Rg3 Bb1+
r6q/1nR1PN1P/qb3QQ1/1npbrBp1/5K2/1r4BR/3N1B1Q/bbkb4 w - - 0 1 illegal: No possible last move, all moves rejected
R6B/2rRpK2/1Qnr1Q2/3P4/Np2N1qB/1n1b1R2/n1nnP1k1/q1Q3bb w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 g6 h3 Bg2 hxg2 Bb2 fxg6 Ba3 g5 Bc1 g4 d6 b3 a4 Kf7 h4 Kg6 f4 Kh5 Kf2 b5 Ke3 c5 Ke4 g5 Ke5 b2 d4 b4 d7 g3 Ke6 Kg4 a5 c4 a6 c3 a7 c2 f5 Bb7 f6 Qc8 h5 Nh6 f7 Nf5 h6 Bg7 f8Q Ne3 Na3 b1B Bb2 c1N h7 Na2 Qf7 Rd8 Nf3 g1Q h8Q g2 Nc4 Kg3 Rh5 g4 Rd5 Bd3 Bc3 Nc2 Ng5 Qf1 Qhe8 g1N Nb6 Nf3 Na4 Kf2 Qg6 g3 Kf7 g2 Qh8 g1N Qb6 Nd2 Rd6 Bbe4 d5+ Bd4 Bb2 Nb3 Rc1 Re8 d8B Bh1 Bc7 Nf3 Ne4+ Kg2 Qd2 Qg1 Rf1 Nc6 Qhh6 Rb8 a8R Rb7 Qe6 Bc5 Bh8 Rd8 Qf6 Qg4 Qdh6 Qd4 Qc1 Nfd2 Rf3 Qa1 Bb8 Bg1 Bc7 Re8 Rdd8 Ra7 Bg3 Rc7 Rd6 Rec8 Rd8 Rd7 Bh4 Rd6 Rd7 Rc7
3kq2Q/N2npPrK/5Q1B/nN6/q3N1q1/B2bqp1q/RRrP1n2/4b2B w - - 0 1 illegal: No proof kernel
2b5/BkrP4/5R2/6pP/2Rr2np/2RBn1qn/QnnB1QN1/K1bq1bN1 w - - 0 1 illegal: No proof kernel
R1qQn1r1/2P1pK1N/3Qn3/bn1p4/1nBqPNr1/1R1R3N/n4Bb1/3b3k w - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 f4 d5+ Kf3 Kf5 b4 g5 c4 a5 c5 g4+ Kg3 Ke4 Kh4 a4 Kg5 a3 Kg6 h2 e3 d3 b6 g3 b5 h4 c6 a2 c7 d2 b7 g2 b6 h3 f5 Ra4 f6 Bg4 f7 Bh6 f8Q Na6 b8R Nb4 b7 Qc8 Bb5 Nf6 Qf1 d1N Bd7 Nc3 Be8 Bd1 Nf3 g1Q+ Kf7 Rg8 Qa6 Nb5 Qd6 Bf4 Bc6 Ne8 Bb2 Bg3 Bd4 Be1 Bb6 Qgg4 Ng1 Qh4 Ra8 Qh8 b8N Qd4 Nd7 Bc3 Ne2 Kf3 Ng1+ Kg2 Nf6 Be1 Nc3 Bd2 Rb1 a1N Nh5 Nb3 Ne4 Nc1 Rb3 Nca2 Ng5 Bc3 Nh7 Be1 Nf3 Bc3 Rf1 h1N Ng1 h2 Nh3 Ng3 Rf3 Kh1 N5f4 Nf5 Bb7 Bd2 Ba6 Nfg7 Rd3 Ne6 Bc5 Na7 Bc4 Nb5 Ba7 Nc6 Rb3 Ba5 Bc5 Ncb4 e4 Ra3 Rbd3 Rc3 Rfe3 Rc2 Rb3 Rcg2 Red3 R2g4 Ba7 Nf6 Qfd8 Ne8 Ng6 Kg2 Bc5 h1B Ngf4+ Kh2 Ba7 Bg2 Bc5 Kh1 Bb6 Qe5 Bf2 Qd4
N1rqn3/2pq1NN1/Q1Q2r1p/nb3r2/1Pn3K1/3Q4/1Br1BkP1/R1b1R2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Ke6 b4 Kd5 d4 a5 e3 f5 b6 c3 b7 a4 Nd2 a3 Bb5 c2 Rh2 h3 Rb1 a2 Ba3 a1Q Rb2 c1R Rc2 Nf6 Nc4 Ra6 Ra2 Bd7 Rh1 h2 Qd3 Bh6 Bb2 Nc6 b8Q Na5 Nh3 Ne8 Re1 h1R Qa7 Rc2 Ng5 Rf6 Nf7 Bg5 Ra4 h6 Qa6 Qc1 Ra1 Qd2 Nce5 Bc6 Nd7 Rg8 Qc3 Qd1+ Be2 Bb5 Qa3 Qd3 Qa4 Kc4 d5 Rh8 Kf2 f3 Kg3 f4+ Kg4 f2 e4 f1N e5 f3 d6 f2 e6 Nd2 e7 Kd5 Nb6+ Ke4 d7 Ke3 Na8 f1R Qc6 Ndc4 Qa2 R1f5 Qa3 Qb8 d8Q Kf2 Qa2 Qd1 Qd3 Bc1 Qa4 Qd8 Qaa3 Ned6 e8N Qd7 Ng7 Rc8 Qa2 Ne8 Qa4 Nb3 Qaa6 Nba5 Qde4 Q1d6 Qed5 Qd8 Qd3 Q6d7
q2RQ2K/2p5/N2R1p1B/1n1nn2P/r1qB2P1/n1QR3b/kb2rNBq/7n w - - 0 1 illegal: No proof kernel
1N3brN/qpQ1rB1B/2b2K2/Rnp1Pq2/2R2b2/1N2P3/q2B2b1/b3Q1nk w - - 0 1 illegal: No proof kernel
2r5/kpb1B2K/2bP2r1/2N1qN2/qr6/1QqrRrB1/3P2np/nRNB3Q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 e5 g4 h5 a4 c5 f4 Kc7 a5 h3 g5 h4 g6 b3 g7 b2 f5 h2 a6 Kb6 f6 c4 a7 c3 f7 h3 Na3 b1R Bb5 c2 Ba6 Rh6 Ne2 Bd6 f8B Ne7 g8Q Nf5+ Kf2 e3+ Kf3 e4+ Kg4 Rg6+ Kh5 Nd7 Bb5 Bc7 d6 Rb4 Qc4 Nc5 Qe6 Qe8 Re1 h1R Bb2 c1Q Bbg7 h2 Ba4 Bd7 Qdb3 Rf1 Rb1 Rf3 Nc2 Nh4 Ncd4 Qc3 Nf5 Ng2 Be7 Rc8 a8N+ Ka7 Nb6 Bc6 Nc1 e2 Be5 e3 Bg3 Qd7 Qd1 Nb3 Qd5 Qe8 Nd7 Na1 Nc5 Qd7 Q5b3 Qe8 Rf1 e1Q Rh1 Qe2 Re1 Qec4 Re2 Q4d4 Qh1 Qe5 Qb2 Qd7 Bd1 Qe8 Re1 e2 Qb3 Rd3 Rf1 e1R Rf3 Rf1 Re3 Rg5+ Kh6 Rf3 Kh7 Rg6 Bf6 Bd5 Bd8 Qa4 Be7 Bc6
r1r1B1RB/P2rn1N1/b4Rq1/q3r3/1N1NB3/2b2PQQ/1p4rp/2qk2nK w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 a4 Kd6 g4 c5 f3 b5 Kf2 e5 Kg2 h5 a5 e3 g5 h3+ Kh2 e4 a6 e2 a7 e1R g6 h4 g7 e3 Qd2 c4 Qe2 c3 Qf2 e2 Ra4 c2 Ra3 b3 Ra2 b4 Qe3 b2 Nc3 b1Q Bb2 c1Q Qf2 b3 Ra6+ Nc6 Na2 Qa5 Nb4 Ne7 g8B Qg6 Bh7 Bg7 Qg3+ Be5 Rb6 Ba6 Rb8 Rd1 Rg8 e1R Bb5 Rd3 Ne2 Rdd1 Bc3 b2 Rg1 Rd3 Kh1 h2 Rf8 Rdd1 Rf5 Rhc8 Rf6+ Kc7 d6+ Kb6 d5 Kc5 d7 Nd4 Bc6 Kc4 d8N Kb3 d6 Rd3 d7 Rdd1 Nd5 Kc2 Ne6 Rd2 d8Q Kd1 Qd7 Rc2 N2f4 Rg2 Ng7 Ne2 Qdh3 Bd4 Nfe6 Be5 Rf1 Ng1 Be8 Bd4 Rf2 Re4 Nb4 Re5 Be1 Bc3 Nd4 Rd8 Re2 Rd7 Re4 Rc8 Rg4 Qh5 Nge6 Rc2 Qhg2 Re4 Ne2 Bd2 Bf7 Rf8 Rf5 Ra8 Rg8 Rec4 Bhg6 Rcc8 Be8 Qg5 Bf2 Bc3 Bd4 Rd2 Bh8 Qh6 Bgf7 Qg6 Ng7 R2d5 Rf6 Rb5 Q2h3 Re5 Kg2 h1R Nd4 Rdd8 Bd5 Rd7 Qe6 Rh3 Be4 Rh1 Qgg4 Rh3 Qf5 Rg3+ Kh1 Rg2 Qg3 h3 Qh5 h2 Qhh4 Qf4 Qhh3 Qc1
2n4N/p3R1b1/NR2K2r/R3Bb2/b1Qp1r2/bP1Nbq1n/P2B3k/Q1n1q3 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 Bh3 e5 dxe5 gxf4 g5 Bd6 Bf5 Bf8 Bg4 hxg4 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 c5 h4 c3 g6 c2 e6 f3 g7 g3 e4+ Kg4 e5 f5 e7 c4 e8R c3 e6 g2 e7 Kg3 b3 f4 h5 f2 h6 f1B h7 f3 Nd2 f2 Qe2 Nc6 Qh5 Nb4+ Ke5 d5 Qd1 d4 Nb1 Bb5 Na3 f1Q Bd2 c1N Nc4 c2 Nd6 Ba4 Nf3 g1B Rh6 Nd5 Ne1 Bf5 Nd3 Qf3 Nf7 Be3 Rb6 Bg6 Ke6 Kh2 Rb1 Qc7 Reb8 Qb7 e8N Nge7 g8Q Nc8 Nc7 Bg7 Na6 Qf1 Rb5 Qe1 Ra5 Qc6+ Nd6 Qc3 Rb6 Rb8 Nf7 Rb7 Nfe5 Rf7 Rb2 Rf4 Nf7 Ne2 Qa1 c1B Rb1 Ba3 Rb2 Nc1 Rc2 Qb2 Rc7 Qc2 Re7 Qcd1 Qe8 Qf3 Qc6 Nf6 Qc4 Ne4 Ndb4 Nf2 Nd3 Rd8 h8B Nh3 Rc7 Rd5 Rcb7 Rh5 Re7 Bf8 Bf6 Bg7 Nh8 Rh6 Be5 Bf5+
n7/pb4K1/n1kBbbR1/bqq1r1P1/7N/R1Pr1b2/BrR1p3/Q1B3NQ w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 d5 f4 Kd7 b4 e5 g4 h5 g5 d3+ Ke3 h3 b6 d2 b5 h2 f5 d4+ Kf2 h4 f6 h3 Kg3 e3 Kg4 d3 Kf5 e4 Kg6 e2 f7 e1B b7 e3 b6 e2 Ra2 Nf6 Bb2 Kc6 Bg2+ Nd5 Ra5 Na6 b8B Be6 b7 Qb6 Bf1 Bg7 f8R Bf6 Bd6 Qb5 b8Q Ndc7 Rc8 Re8 Bc1 Qc5 Qb4 Rb8 Qa3 Rb2 Qa1 Re7 Rg8 Na8 Ra3 Re8 Kh7 Qb5 Rg6 Qc5 Nf3 Qb5 Rg1 h1B Nh4 h2 Bh3 Bf3 Rg4 h1B Rc4+ Qc5 Kh6 Bf5 Kh7 Re5 Bg4 Bc8 Be6 Bb7 Kg8 Bd5 Kf8 Bhf3 Bg8 Be6 Bf7 Bf2 Qh1 d1Q Nd2 Bd4 Kg8 Bc3 Kh7 Ba5 Kg8 Bfd5 Ndf3 d2 Ng1 Bf3 Kh7 Qe1 Bg8 d1R Kh6 Be7 Kg7 Qb4 Bf7 Qb5 Rcc3 Bh3 Ba2 Rd3 Rcb3 Rf5 c3 Re5 Rb4 Be6 Rbb3 Rb1 Rb2 Bed8 Rd2 Rb2 Rc2 Bf6+
n4nBk/pNb2P1b/3Q1RrN/b1q4q/4B1q1/1q1QpKR1/2Pr2Q1/Bq6 w - - 0 1 illegal: No possible last move, all moves rejected
1qQ2K1b/p4PQ1/6R1/1B1bnQ1r/b1n2n1r/p1N1PR2/B2q1Bn1/k2nN3 w - - 0 1 illegal: No proof kernel
8/p1Pp1NB1/nq2QR1n/2bBR3/1RP1Knb1/3q1r1Q/5rqn/kN2Bn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 dxc5 e6 Bh6 exf5 Bc1 f4 Kd2 Ke7 Kd3 Kf6 g4 Ke5 e4 h5 c4 f5 b4 a3 c6 a2 g5 f3 g6 f4 g7 h3 b5 h2 b6 h4 b7 f2 Qb3 h3 Qa4 f3 Qa6 Qb6 Nd2 Nh6 g8R Bc5 Bg2 f1N Qa3 f2 Rf8 Na6 Rb1 a1Q Rf6 Rf8 Rb4 Qa2 Qb3 Qa3 Nb1 Rb8 Bd2 Rf7 Kc2 Kd4 e5 Ra8 b8B Bb7 Bc7 Raf8 e6 Ba8 e7 Bb7 Rg6 Rf3 e8Q Ba8 Bd8 Bb7 c7 Be4+ Kd1 Bf5 Qe6 Bg4 Be1 R8f5 Rf6 R5f4 Qc2 Qd3+ Kc1 Rf5 Be7 R5f4 Bf8 Rf5 Qce2 R5f4 Bg7 Rf5 Nd2 Kc3 Q2e3 R5f4 Ra4 Rf5 Nb1+ Kb3 Rb4+ Ka2 Q3e5 R5f4 Qh5 Ka1 Qh4 Ne3 Qg3 f1N Qh4 Rf2 Bd5 Ng2 Nf3 Rf5 Rg1 h1Q Ng5 h2 Nf7 R5f3 Qh3 Nf4 Rg3 Qg1 Rg2 h1N Rh2 Rb2 Re2 Nh2 Re4 Ng3 Re5 Qa3 Kd1 Qg2 Kc1 Rbf2+ Kd1 Nfe2 Kc2 Ngf1 Rb3 Rf5 Kd3 R5f3+ Ke4 Nf4 Rb4 Qd3#
B1nbbb2/rp6/4Rp1k/1b1bRB2/r1B1KnbP/Q1b5/RN3P2/1Q1q2N1 w - - 0 1 illegal: No possible last move, all moves rejected
b3n3/1B5k/RQ1Q1nnB/1KQ4r/3Bpb2/q2rP3/1NP2pRN/2qb1r1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 g5 d4 gxf4 Qd2 c5 Qd1 cxd4 Kd2 f5 Kd3 Kf7 Kc4 Kg7 h4 e5 b4 d5+ Kb3 a5 Ka4 g3 b6 e4 e3 d3 b7 g2 b5 d4 b6 d2 h5 d3 h6+ Kh7 Bb2 f3 Be2 f2 Nf3 f1R Ne5 g1N Qc1 d1Q Ba3 d2 Bh5 f4 Bc5 f3 Nd3 f2 Qa3 Bd6 Bf7 Nh3 Rg1 Nf4 Rg2 Na6 b8Q Qe7 b7 Nc7 Nb2 Nf6 Bd5 Nce8 Bd4 Qc1 Kb5 d1B Qc5 a4 Nd2 a3 Nf3 a2 Nh2 Ng6 Bc6 Be5 Qbd6 Bf4 b8Q Ra3 Qbb6 Bb7 Bd5 Ba8 Bb7 Kg8 h7+ Kg7 Bd5 Rd3 Bc6 Qa7 Bd5 Qa3 Bb7 Rf8 h8B+ Kh7 Bg7 Rh8 Rb1 a1R Bh6 Qc3 Kc6 Ra5 Ra1 Rb5 Ra6 Qa3 Qb4 Rh5 Q4b5 Rg8 Q5c5 Rg7 Kb5 Re7 Nf3 Rhh1 Nh2 Re5 Qa7 Rg5 Qab6 Rh5
2Rqk2B/1R2b3/1Q6/1r2Kn1b/2PB1nq1/1Nr1pQPR/B3pb2/2bn1rN1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 a5 c4 h5 b4 d5 f4 e5 b5 d3 Kc3 e3 b6 d4+ Kb2 e2 b7 a3+ Kb3 a2 g3 d2 f5 h4 g6 e4 g7 d3 Kc3 a4 f6 h3 Bb2 h2 Qc2 d1N+ Kd2 a3 Qc3 Rh5 Bh3 Be7 Bg4 Nh6 Qe5 Nf5 Qc7 Nd7 g8R+ Nf8 b8B Bb7 Rg7 Ne6 Bd4 Nf4 Qb6 Bd5 Rh7 Bf7 Bbe5 Rg5 Rg7 Bh5 Rf7 Ra5 Bf3 Rb5 Rg7 Rb3 f7+ Kd7 f8Q Rc3 Qff6 Ke8 Rh7 Bc5 Rb7 Be7 Qfd6 Ng7 Bf6 Rb5 Qd5 Nf5 Bh8 Nde3 Ke1 d2+ Kf2 d1Q Bg4 Qc2 Nd2 Nd1+ Ke1 Qd3 Nb3 Qf3 Rb1 a1B Kd2 a2 Rc7 Re3 Rc8 Bb2 Qa8 a1B Qab7 Nh6 Bf5 Qg4 Qa8 Rd3+ Kc2 e3 Qf3 Bc1 Bh7 Bc3 Be4 Nb2 Bf5 Be1 Bh7 Rd2+ Kc3 Bf2 Be4 Nf5 Bc2 Nbd3 Rb2 Rd1 Bb1 Re1 Ba2 Rf1 Rb1 Nb2 Bdg7 Nd6 Kd4 Nf5+ Ke4 Rd1 Bf6 Rd3 Bd4 Nd1 Rb2 Rc3 Rb1 Rb4 Ke5 Rb5+ Nc5 Rd3 Qbb7 Nc3 Nh3 Ra5 Qa6 Nd1 Rb7 Rc3 Qb6 Nd5 Nb3 Rb5 Rg1 h1R Rf1 Rh2 Rh1 Rg2 Rh2 Rg1 Rh1 Re1 Ng1 Rf1 Rh3 Nf4+
b1B4N/R2Q3K/1B1rn3/qNBqbnn1/2p1N3/3PpP2/n1R3b1/1r1kqQ2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 Kf5 b4 a5 d3 c5 g3 h5 f3 c3 b6 c4 b5 h3 b7 h4 b6 h2 Qc2 a4 Nd2 h3 Bb2 a3 Nb3 a2 Qd1 c2 Rc1 a1Q Nd2 Ra6 Qe1 Nd7 b8B Nh6 b7 Bg7 Ne2 Qaa5 Bd4 Nc5 Bc7 Nf7 b8Q Ng5 Qb5 Nce6 Bcb6 Bb7 Bdc5 Ba8 Nc3 Qd5 Qd7 Rb8 Nb5 Bf6 Rg1 h1N Rg2 h2 Ra1 c1N g4+ Kg6 Re2 Na2 Bh3 Ng3 Qf1 h1B Rf2 Bg2 Re2 Nf7 g5 Kh5 g6 Kh4 g7 Nfg5 g8N Nf5+ Kf2 Bg7 Nh6 Bf6 Nf7 e3+ Ke1 Kg3 Nh8 Bg7 Kd1 Rb7 Ne4+ Kf4 Rd2 e2+ Ke1 Rb8 Kf2 Rb7 Rc2 Bf6 Ba7 Rd6 Bab6 e1Q+ Kg1 Nfd4 Kh2 Ke3 Bf5 Qe2 Kg3 Qee1+ Kg4 Rb8 Nec3 e4 Kh5 Be5 Kh6 Nh3 Rcc1 Kd2 Kh7 e3 Bg4 Nb4 Ra3 Nf5 Ra4 Na2 Ra3 Qb4 Ra7 Qa3 Ne2 Rb7 Ng3 Qa5 Rc2+ Kd1 Ne4 Nhg5+ Kg6 Qd2 Qe8 Nfg7 Nd4 Nb4 Ba5 Na2 Kh6 Rb3 Nb5 Rb1 Bab6 Nd4+ Be6 Qa5 Kg6 Rd8 Bc8 N7e6 Kh6 Rd6 Qd7 Nf5+ Kg6 Nf7 Kh7 Nfg5+
2b1rR2/rn1N1K2/6Br/BR3Q2/1P4RP/npbN1qq1/p5k1/q2Qbb1N w - - 0 1 illegal: No proof kernel
1Br1BQ1b/3B1nR1/K2q1k2/2Q3q1/1pp1bPPr/b5b1/1N2n2q/r1R1NR2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 f4 h5 d4 b5 g4 e5 a4 c5 d6 e3 Kd3 e4+ Ke2 h3 d7 b3 d5 c4 a5 h4 a6 b2 d6 h2 a7 h3 Nf3 Kf6 Ne1 Rh4 Qd5 Nh6 Bg2 Bb7 Nc3 b1Q Nd1 Nf7 Qc5 Qb4 Nb2 Nc6 Rf1 Rc8 a8B h1R Ra7 Qe7 d8Q h2 d7 Nd4+ Kd1 Ne2 Kc2 Bg7 Qf8 Bh8 d8R Rg1 Rd4 h1Q Rd1 Qh2 Bd2 Qa5 Rc1 Qd6 Bb4 Qad8 Bh1 Q8e7 Bc3+ Qee5 Ba5 Qg5 Bc7 Ng3+ Ng2 e2 Kc3 Bd5 Kb4 e1B+ Rc3 e3 Ka5 e2 Bb8 Bf2 Ra1 Rd1 Bc6 e1B Qb6 Ne2 Be8 Bg1 Ka6 Bg3 Rf3 Rc1 Ne1 Bc5 Rf1 Ba3 Rb7 Bc6 Qc5 b4 Be4 Rd1 Bf5 Rb1 Re7 Rd1 Bfd7 Rc1 Re5 Qh5 Rg5 Rd1 Rg7 Qf5 Rc1 Qg5 Rc3 Ra1 Rc1 Be4+
3bBN2/6r1/1r1N1q2/BR2bn2/p5pb/Qb1PRQ1Q/n1NqqP2/K2k1r2 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 b4 g3 h4 Kd7 d3 Ke6 Kd2 Kd5 Kc2 Kd4 Kb2 e5 h5 c5 b6 g5 h6 a5 h7 a4 b5 e3 b7 e4 b6 e2 Rh6 e1R Qe2 e3 Qc2 e2 Nc3 g4 Rb1 g2 Bg5 Ra6 Rh1 Nc6 b8Q Nh6 b7 Nb4 Ra1 Be7 Qg3 Rb6 b8N Nf5 Nd5 Rg8 h8Q+ Rg7 Rd1 Be6 Rh4 Na2+ Qb3 Bg8 Rh1 c3+ Ka1 c4 Nd7 c2 Nc3 c1B Ne4 c3 Qhh3 c2 Bd2 Bh4 Ba5 Bcg5 Rb1 c1Q Nd6 Qd2 Qa3 Rd1 Nf8 e1Q Be2 Bf6 Bf3 Be5 Nb7 Qf6 Bc6 Bc7 Qf3 Bd8 Be8 Bf7 Qc1 Bc4 Rb5 Bb3 Nd6 Qee3 Qe2 Re1 Qed1 Qf3 Qa3 Qe4 Rb4+ Kc3 Nf3 g1B Nd4 Bh2 Rg1 Qee3 Rg3 Rf1 Rf3 Be5 Rg3 Qee1 Re3 Nc1 Qdf3 Qee2 N4b5+ Kc2+ Nd4+ Kd1 Rb5 Nh6 Bg6 Na2 Be8 Nc3 Nc2 Nf5 Kb2 Na2+ Kb1 Nc3+ Ka1 Na2+
8/K1Q1nn1R/1Nb4B/3Qr1qp/rkB1pQqb/3Pbn1P/2r1N3/2bR3B w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kd7 Ke3 Kc7 c4 Kb6 f4 h5 d3 g5 h3 a5 f5 e5 f6 g3 f7 a4 c5+ Ka5 b6 g4 c6 b3 c7 b2 b7 a3 Nc3 b1R Bb2 g2 Qe1 g3 Rh2 a2 Qd2 Be7 f8Q Nd7 b8Q Bb7 c8B Re1+ Nge2 g1B+ Qf2 g2 Qc2 Bc6 Qd2 Bh4 Rd1 a1B Ba6 Ne7 Bc1 Bb2 Bc4 Qg8 Qb7 Qg4 Qc2 Rhc8 Nd5 Rc7 Nb6 Ba3 Kd2 e3+ Kc3 Ra6 Bd2 Bc1 Qf4 Bgf2 Qb3 g1Q Bg2 Qg5 Bgd5 Q1g4 Bh1 Rc8 Rg2 Bg1 Nd4 e2 Qc7 Be3 Rg1 e4 Rg3 Rf1 Rf3 e1N Ne2 Ne5 Rg3 Bf2 Be3 Re8 Kd4 N1f3+ Kc5 Raa8 Qb2 Rac8 Qd4 Nf7+ Qd5 Bg1 Bd4 Rf2 Bg7 Ra8 Bh6 Qg8 Nd4 Rc2 Rg2 Bge3 Rgg1 Qf5 Rg7 Qg4 Rh7 Q8g5 Nc8+ Ka4 Kb6 Kb4 Qdd7 Ra4 Qd5 Bd7 Kb7 Bb5 Nb6 Ka5 Qdd7 Bc6+ Ka7 Ng8 Ne2 Re5 Qdd6 Ne7 Qd5+ Kb4+
1q3Q2/1q2nnrR/4BkbN/Q1B3p1/2P1RN1Q/4KR2/1bb1Pp2/br1q3r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 a5 h4 g5 c4 f5 b6 d5 h5 f3 b5 a4 h6 d3 h7 d2 b7 a3 b6 g3+ Ke3 f4+ Kd4 f2 Nh3 g2 Rg1 a2 Rh1 g1Q Rh2 f3 Ke3 Qg2 Qe1 d1Q Qd2 Bf5 Ba3+ Kf6 Nc3 Ne7 Nf4 Bg7 Bc5 Nbc6 b8R Ra7 b7 Bg6 Nb5 Ne5 Qa5 Nf7 Nd6 Qc8 Rc1 a1B Nf5 Qc7 Rc8 Qb8 Re8 Qh1 Bg2 f1R Nh6 f2 Bh3 Bb2 Bf5 Re1 Rh3 Rg1 Rf3 d4+ Ke4 d3 Ke3 d2 Be6 Qg2 Rc3 Rh1 Rc1 Rg8 h8Q Ra6 Rc3 Rb6 Rd3 Ba1 Rd7 Rb1 Qh7 Bh8 Rc7 Rg7 Rd7 Qc8 b8Q Qb7 Qd6 Qb8 Rb7 Qdf1 Rd7 d1B Ra7 Bdc2 Rd7 Ng8 Qf8 Qfg1 Ree7 Qd1 Rd4 Bb2 Re4 Ba1 Nf5 Bb2 Qh4 Ba1 Rb7 Ne7 Nh6 Rg8 Qa8 Nc6 Qe8 Nfd8 Rh7 Nf7 Rh3 Ne7 Rd4 Qgb7 Rf3 Ke5 Qf8 Bf6 Bb6 Rg7 Re4+ Kd6 Qa5 Bfb2 Ba7 Qbd5 Rd4 Ke5 Re4+ Kf6 Bc5 Qdb7
1r5b/2K1n2R/1q1N2r1/B2Qnp2/rrBbbNQ1/2B2n1p/P1NP1k1q/6R1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 b5 e3 c5 g5 f5+ Kd3 Ke5 g6 b3 e4 f3 d6 Kf4 e5 Kg3 g7 c4+ Kd4 b2 Kd5 h3 e6 h4 d7 c3 e7 c2 Kd6 f2 Qh5 b4 Bc4 f1N Bb3 h2 Qe2 h3 Qe6 Qb6+ Ke5 Ra4 e8N Bc5 d8B Rh6 Nc7 Rg6 Qd7 Bb7 Ne8 Ne7 g8Q Kf2 Nd6 Be4 Bc4 b3 Na3 b1R Bb2 c1B Bc3 Bb2 Ne2 Be3 Rg1 h1Q Qg7 Nh2 Nc2 Bc5 Rg5 Qg1 Rh5 Nf3+ Kf4 Qh1 Rh7 Nbc6 Qb7 Nce5 Qd5 Bd4 Qgg8 Rg3 Qg4 Qh2 Bc7 Rf1 Rc1 Ba1 Bd8 b2 Re1 Rh1 Rg1 b1R Bc7 Qa6 B7a5 Rb8 Rb1 Qb6 Rg1 Ne1 Kg5 Bb2 Kf6 N1f3 Ke6 Ba1 Nf4 Bb2 Qh5 Rg5 Qg4 Ba1 Rg3 Rb1 Rg1 Rbb4 Rh1 Nf7 Kd7 Rg6 Rg1 Bh8 Be5 Bd4 Bg7 Bc5 Bb2 Bcd4 Bc3 Qb5+ Kc7 N7e5 Rf7 Qa6 Rh7 Qb6+
r1n3kN/1Nr1R2r/5qb1/Q3p1bq/RB2P1B1/QK4pn/P2q2r1/1NB2b2 w - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 c4 f6 g5 fxg5 cxd5 gxh4 Qb3 h3 Qc2 Bd7 Qd1 Bc8 f4 Kf7 d4 b5 Kd2 c5 Kc2 h5 e3 g5 f5 e5 f6 h4 d6 g4 d5 g3 d7 b3+ Kb2 b4 d6 h2 Qc2 h3 Na3 c4 Be2 c3+ Kb1 b2 Bg4 Ne7 Qg2 Nbc6 Kc2 b1Q+ Kd1 b3 Qb2 c2+ Kd2 Kg8 Kc3 Bh6 Be2 Na7 Nf3 Ba6 Ng5 Nac8 Bg4 Bf1 Nf7 Rh7 Nh8 Ng6 Kb4 Qf8 d8N Nf4 Nb7 Bg5 Kc3 Qf7 d7 Qd5 Kb4 Qd2+ Qc3 b2 f7+ Kg7 f8B+ Kg8 d8Q Rc7 Rg1 h1Q Kb3 h2 Qdd3 Nh3 Qa5 Qc6 Bb4 h1R Qd6 Rh2 Rh1 Rg2 Qd3 Qf6 Rh2 Ng1 Rh7 Nh3 Re7 Rd7 Re6 Rh7 Re7 Qdf2 Bcd2 Qd1 Rc1 Qdf3 Nb1 Q3f5 Re1 c1R Re2 Rc4 Bc1 Rc7 Rc2 Qd2 Rc4 Q5g6 Re4 Qh5 Qda6 Qd4 Qa3 Qd2 Q6a5 Rc2 Bd6 Rc7 Ra4 Bd3 Bb4 Bg6 Nc3 b1B e4 Bd3 Nb1 Bf1
1nb2nQ1/K2qQ3/2Q2R2/bPR1B2r/2bn1q2/3P1p1p/2B1R3/r1rr1kNN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 e4 Kd6 g4 Ke5 b4 Kd4 b6 c5 g5 a5 b5 h5 g6 f5 g7 c3 b7 f3 e5 h3 e6 h4 e7 a4 e8R c4 Re7 h2 Re5 h3 Re7 c2 Re8 a3 Nc3 f4 Nge2+ Kd3 Ne4 c3 Qe1 a2 N4g3 Bb4 Bb2 Rh5 Rc1 Ne7 g8Q a1N Rf8 Qd7 Rf6 Nb3 Ng1+ Kd4 Qge6 Ra1 Qc6 Ba5 Bd3 Ng6 Qe7 Nf8 Re1 c1R Re2 Rd1 Bb1 Rc1 d3 Rd1 Ba3 c2 Bd6 c1Q Bc7 Qc4 Bc2 Kc3 Be5+ Nd4 Re3 Kd2 Re1 Na6 b8Q Qb4 Qba8 Nb8 Re4 Nb3 Rc4 Nd4 Rc5 Qc4 N1e2 Qa4 Re1 h1B Ng1 Qb4 Qce6 Qa4 Qg8 Rdc1 Qc6 Qb4 Kf1 f2 Qg2 Nb3 Qc6 Rh8 Rc3 Bd5 Nh1 Qd4 Rc5 Bc4 Rd5 Kc3 Ke2 Rh5 Kf3 Kd2 Re4 Qc5 Re3 f1R+ Ke4 Rfd1 Re1 Qf2 Re3 Nc5+ Kd4 Qh2 Re4 f3 Re1 Nb7 Re3 Nd6 Kc5 Nf5 Re4 Qf4 Re3 Bc3 Kb6 Nd4 Rc5 Bb4 Bc7 Ba5+ Ka7 Ne2 Ree6 Ke1 Ree5 Kf1 Re3 Qd8 Be5 Nd4 Re2 Qd7+
1K1QRn1n/r2R4/Q4qn1/BPkP4/3Np1qp/1rb2BQb/3qb3/3NRb2 w - - 0 1 illegal: No proof kernel
QQ1b2Bn/q1rB1n2/B1b4N/1p1p1NrR/4P1qb/1Pqk4/2N1R1r1/1K1r4 w - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 e5 d4 exf4 b3 cxd4 Qd3 a5 Qd1 a4 Bb2 a3 Qd2 axb2 Qc1 Be7 Qd1 Bf8 Kd2 Ke7 a4 Ke6 e4 Ke5 c4 d5 Kc2 b5 h4 f5 h6 g5 h5 d3+ Kc3 g4 h7 f3 c5 f2 a5 f4 a6 d2 Kc2 Kd4 c6 g3 a7 g2 h6 f3 c7 Qf6 Rh3 Bd7 c8B Nc6 Bc4 f1Q Bd3 f2 Ra6 Nd8 Rh5 Qe2 Ra2 f1Q Ba6 Be7 Na3 Nf7 Qa1 Q1f2 Kb1 Rc8 a8B Qg4 Be2 Bd8 Bc6 Rc7 Nc2+ Kc3 Bd1 Kd3 Nf3 g1B Nfd4 Ne7 Nf5 Rg8 h8Q Qa7 h7 Qc3 Qe5 Bh2 h8N Ng6 Qd6 Be8 Bd7 Bg3 Qb6 Bgh4 Qb8 Rg7 Be6 Bc6 Bd7 Nfe5 Nf7 Nh8 N7h6 Rg6 Be6 Rg5 Bg8 Nef7 Ng3 Qf4 Bg4 Qf3 Bd7 Qe2 Ngf5 Qg4 Ra4 d1R+ Ka2 Rd2 Kb1 Rf2 Rd4+ Ke2 Rd1 Rg2 Re1+ Kd3 Qa3 Qd2 Re2 Qc3 Ka2 b1R Qf8 Be7 Qa8 Rd1 Qfb8 Qe1 Kb2 Bd8 Ka2 Qd2 Kb2 Qc3+ Ka2 Rd2 Kb1 Rd1+
R5K1/b4B2/2r1b3/P1Nn1q1N/1q1rR1pq/2BbQ1Bk/Q1p3bP/n2R1r2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kf6 d4 Kg5 a4 Kh4 a5 f5 d6 g5 d5 b5 e5 c5 d7 f3 Ke3 b3 e6 f4+ Ke4 g3 Kf5 g2 Kg6 f2 Kf7 c4 d6 f3 e7 b4 e8R b2 Qe2 c3 Qe6 b3 Qd5 g4 Qe5 Nc6 Qe1 Nf6 Bf4 Ra6 Be2 Nd4 Nd2 b1Q Bd1 b2 Qe5 f1Q Ra4 f2 Nh3 g1R Bb3 Rc6 Ne4 Nc2 Nc5 Nd5 Qe3 Na1 Rae4 Bg7 Bc4 Bd4 Ba2 Qg5 d8B Rh6 d7 Rhd6 Bb3 Qc4 Rf8 f1B Bf6 Qb4 d8Q Bg2 Qd7 Qf1 Qe6 b1B Bc4 Bd7 Ra8 Bd3 Bb3 c2 Bg3+ Kh5 Bc4 Qh4 Kg8 Qf5 Ba2 Rf1 Nf4+ Kh6 Be5+ Kg5 Qf7 Be6 Nh5+ Rf4 Rd1 Rd7 Nb3 Ba7 Bc3 Rdd6 Qc5 Rf1 Qe3+ Nf4 Nc5 Rd4 Bge1 Qg3 Bb3 Kh4 Bc4 Kh3 Bf2 Qf3 Bg3 Qf2 Ba2 Bc8 Qb3 Nd5 Qb2 Qe1 Bb3 Bd7 Qa2 Be6+ Kh8 Bc8 Kg8 Nc7 Bf7 Nd5 Bd6+ Qg3 Bf4 Be6 Be5 Rf3 Bb8 Qh4 Bg3 Rf1
bN1n3B/2bRnn1B/KN3R2/P1rb1R2/B1Q2p1k/3P4/q3qp2/1n2r1Qr w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Ke7 Ke2 Kf6 Kd3 Kg5 Kc4 f5 Kb5 h5 g4 c5 a4 c4 d6 f3 e5 c3 d7 b3 a5 h3 e6 f4 e7 f2 e8B h2 Ra4 c2 Rd4 b2 Nc3 b1Q+ Rb4 h4 Rb2 h3 Nge2 Qa2 Nd5 Ne7 Rb3 Rh5 Rc3 Nbc6 Rb3 Kh4 Bb2 c1N g5 Nd3 g6 Nde5 g7 Nf7 g8Q b6 d3 Bb7 Nd4 Ra6 Rc3 Ba8 Bg2 Qb8 d8R Qe5 Bf3 Qe2 Rd7 Ncd8 Nc6 Rf5 Re1 h1B Nb8 h2 Rc6 Bg7 Bg4 Be5 Rf6 Bc7 Bh5 Be4 Bg6 h1R Bh7 Ra7 Bc3 Rb7 Ka6 b5 Qg1 b4 Nb6 b3 Qc2 b2 Be5 b1N Qc4 Bd5 Ba1 Qf3 Re5 Rh5 Ref5 Qfe2 Rdd6 Rg5 Ba4 Rh5 Rd7 Rg5 Nc8 Rb5 Nb6 Rc5 Re6 Rg3 Bh8 Re3 Red6 Qeb2 Re6 Re1 Ref6 Qe2
2B1rNqn/Qn6/r3RQ1P/1b2Q1bR/3bpPKN/2np1q2/2B1b3/2r1B1k1 w - - 0 1 illegal: No possible last move, all moves rejected
1kq5/1N1Rb1NQ/Q6P/2K3B1/p1QpR1qn/N4brP/B1qn3q/2r1r2b w - - 0 1 illegal: No possible last move
8/q2QrB2/1r1N1r1P/1R1np1P1/1b1Qbq2/1Q2pk1n/1KR1bnN1/2B2b1N w - - 0 1 illegal: No proof kernel
2rrBR1K/5qb1/3R1nQp/1q2PQ1Q/k1bBN1p1/bN1Pn3/N3q3/rq6 w - - 0 1 illegal: No possible last move
3QB3/Q3RrNb/1KBq2np/3p3b/n2b1PPb/3R3r/R3q1kB/q3r2N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 Kf5 b4 d5 g3 e5 c5 a5 c6 h3 b6 a4 b7 h2 c7 e3+ Kd3 e2 b5 Kg4 b6 a3 Nf3 e1B Qa4 a2 Qa7 Bg7 Ng5 Ne7 Ne6 Kf3 Nc3 Na6 b8Q Qd6 b7 Ng6 Nd1 h6 Rg1 h1B Nf2 Rf8 Be3 Rf7 g4 Bd7 c8B Be8 Rd1 a1Q Bd7 Bf6 Qd8 e4+ Kc2 d3+ Kb3 d2 b8R Be5 Bfb5 Bd4 Ng7 Nc5+ Kb4 Bg2 Nh1 Bh4 Rde1 d1Q Bdc6 Qe2 Rc8 Bf1 Rg2 Rb8 Bg1 e3 Rh2 Rb6 Rh3+ Kg2 Ra8 Ra6 Bh2 Ra3 Rf3 Qd3 Qa6 Nf8 Ra7 e2 Bb7 Rf5 Ba8 Bh5 Be8 Rf7 Bac6 Qe3 Kb5 Rc3 Rd1 e1R+ Kb6 Bd3 Re7 Bh7 Rd2+ Qe2 Qa7 Ng6 Ra2 Ra3 Rd3 Rc3 Rd1 Rh3 Rd3 Na4+
5nNk/q7/1RBB1b1p/2P2K1N/nQrQ2Pr/1b5p/q1q2N1Q/b2Rrb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 Kf3 Kf7 c4 Kg7 e4 d5 g4 a5 b4 h3 e5 d3 e6 d2 c5 d4 e7 d3 e8Q a4 b6 a3 b5 a2 b7 Ne7 b6 Be6 Qc2 d1R Ba3 d2 Qc1 Qc7 Qa4 Nd7 b8N Re1 b7 d1Q+ Ne2 Qc2 Qe3 Nb6 Nc6 Bb3 b8Q Ng6 Qb4 Ra4 Bc1 Be7 Bg2 Nf8 Ng3 Bf6 Nc3 Qa7 Rb1 a1B Nd1 Qa2 Qec3 Qc2 Qbd4 Rc4 Ne7 Na4 Ng8 Qa2 Qcd2 Qc2 Qbb4 Qa2 Kf2 f3 Qe2 Qc2 Ke3 f2 Kf4 f1Q+ Nf2 Qa2 Qed2 Qd3 Bc6 Qdc2 Bb2 Be5+ Kg5 f4 Rd1 f3 Nh5+ Kf7 Bc1 Bf6+ Kf4 Qc3 Kf5 Qcc2+ Nd3 f2 Qe2 f1B Bf4 Qc7 Bd6 Qb6 Qh2 Qa7 Nf4 Kg7 Rg1 Qcb2 Rg2 Qc1 Rb2 Qc2 Nh6 Rg8 Nh5+ Kh8 Rbb1 Rg6 Ng8 Rh6 Rb2 Qc3 Nf2 Qd2 Ng3 Rh4 Nh5 h6 Qbc3 Qc1 Qdd3 Bc2 Rb6 Qcb2 Qb4 Bb3 Qd4 Qc2+
K7/Br2nb2/1r2rP2/2pPp1Rn/1qN1b2n/3R4/Q2N1kn1/NQbq1BR1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc3 Kd5 b4 c5 f4 h5 g4 a5 d4 a4 g5 h3 b6 e3 b7 Ke4 g6 h2 f5 h4 d5 e2 b5 e1N g7 a3 b6 a2 f6 h3 Ba3 Ke3 Qg4 Ng2 Qf5 Nc6 b8N Ra7 b7 Qb6 Ne2 Nd4 Nd2 Nf3 Nd7 Ne7 g8R Bh6 b8Q Rb7 Rg1 h1N Qa7 h2 Rg5 Ng3 Nd4 h1B N4b3 Nfh4 Bb4 Nh5 Ba5 Re8 Rd1 a1R Qb1 Kf2 Qa6 Ra2 Na1 Rb2 Qa8 Qb5 Bb6 Qa4 Ba7 R2b6 Nb8 Bh3 Nc6 Be6 Na5 Qa3+ Ndb3 Qa4 Rd3 Bf7 Nd2 Qd1 Qc8 Qe1 Qc6 Qd1 Qa4 Qg4 Qaa2 Qd4+ Kc2 c3 Nac4 Qg4 Rd4 Qf4 Kd3 c2 Kc3 Qe4 Rd3 Qg4 Qb4 c1Q+ Kb3 Ngf4 Ka4 Be4 Ka5 Nfg2 Qbb1 Qb2 Na3 Qd1 Nac4 Rb5+ Ka6 Qb4 Bb8 R7b6+ Ka7 Rb7+ Ka8 R5b6 Ra3 Nef5 Rd3 Ree6 Ba7 Ne7 Rg8 Bf4 Rg5 Ke1 Ndb3 Bc1 Nbd2 Kf2
2kqr1K1/3rRN2/4bPp1/1n1q1N1N/1Q1PB1RB/1rrQ4/p2b2b1/2n1qB2 w - - 0 1 illegal: No possible last move
3q2rQ/nRbK4/b4pN1/2bp1BN1/1P1qPR2/N5b1/1QRrkn1B/n3r3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 b4 Ke4 h4 g5 e3 d5+ Kb3 a5 Ka4 f6 c4 g3 c5 g2 h5 g4 b6 d3 Kb5 d2 b7 g3 c6 a4 c7 a3 h6 a2 h7 f3 Qe2 d1Q Qb2 f2 Na3 Bd6 Be2 f1R Rh3 Qd4 Bd1 Kd3 e4 Nc6 b8R Nh6 Rh2 Rg8 h8Q Re1 Nh3 g1B Ng5 g2 Bg4 Bf2 Bf5 g1B Rb7 Bfg3 Rc2 Ng4 Bf4 Nf2 Rac1 a1N Rb1 Bd7 c8N Bc7 Ne7 Bc8 Ng6 Ra4 Nc4 Ra2 Na3 Re2 Re1 Rd2 Rf1 Ke2 Qc3 Rb2 Qb3 Rb1 Qb2 Re1 Be5 Nh1 Rf4 Nf2 Bd6 Qd3+ Kc5 Na7 Be5 Bd7 Bd6 Bb5 Be5 Ba6 Bd6 Nc8 Kc6 Qd4 Be5 Qf8 Kd7 Na7 Bd6 Qd8+ Ke6 Qe5+ Kf7 Nd1 Bc5 Qc3 Ke6 Qd3 Bf2 B3h2 Bg3 Bc5 Qc3 Qd4 Qb2 Bg1 Bh2 Bf2 Rh4 Bfg3 Rf4 Qa8 Kd7 Nf2 Nb5 Qf8 Na3 Qd8+
2rNBn2/b1Q1Q1B1/4Pp2/qnb5/pq3rPR/3q1R1q/5nK1/1BkbN1Q1 w - - 0 1 illegal: No possible last move
nB3n2/1R1K2NQ/q1N1pQb1/2Np1r1q/BB2P2P/1n4nb/R5r1/3kbr2 w - - 0 1 illegal: No possible last move
7r/4B3/1Q1Pr1r1/1bqBBR1K/3RPp1N/2qR4/b1k1pQ2/bnNq1q1n w - - 0 1 illegal: No proof kernel
kbn2B2/2KBQqn1/1R1P1NP1/3bRp2/3R1rb1/1nQ3rN/2bN1q1p/2r5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Ke5 Kc7 e4 Kb7 b4 h5 d4 a4 g4 c3 d5 c4 b6 h3 b5 h4 g5 c2 g6 f3 Nc3 h2 Be2 h3 Na2 a3 Qd2 c3 Bb2 c1Q Bd1 c2 Be2 f2 Bh5 f1B Nc3 a2 Bg4 Nh6 Ba3 Qb2 Re1 a1N Bd7 c1R Bd6 Qa2 Nb1 Nf5 Qc3 Rh4 Nd2 Rf4 Re3 Bh6 Bf8 Ng7 Kd6 Nb3 e5 Ra3 e6 Qf6 Re5 Ka8 Kc7 Nc6 d6 Bd3 e7 Bc2 e8Q Na7 Qe7 Qf5 Ngf3 f6 Rd1 h1B Ng5 h2 Nh3 Bd5 Re4 Ba6 Re5 Nc8 b7+ Ka7 b8N Ka8 b6 Be2 Nc4 Bg4 Rd4 Qe6 Nd2 f5 Bb5 Qf6 Nd7 Qf7 Nf6 Bg5 Ba4 Bh4 Bb5 Bf2 Bd7 Na1 Qb2 Rg3 Qc3 Nb3 b7+ Ka7 b8R Be3 Rbb4 Ka8 Rd3 Ba7 Rb6 Qb2 Qc5 Qd4 Qc3 Qf2 Rd4 Bb8+
2Knq1R1/8/Bn1Pp2R/1N1R2Q1/nq1nP1pq/N1r1B2Q/1b4rb/kB1r4 w - - 0 1 legal: proof: g4 a5 c4 g5 h4 d5 b4 dxc4 h5 axb4 Nc3 Bf5 Nb1 Bg6 hxg6 f5 Ba3 fxg4 Bb2 Ra5 Bc1 Ra8 d4 Kd7 Kd2 Ke6 Ke3 Kd5 f4 b5 a4 h5 a5 c5 f5 b3 f6 g3 a6 g2 a7 b2 g7 b4 f7 c3 Qc2 Kc4 Ke4 g4 Kf5 h4 Ke6 b3 d5 h3 d6 h2 Ra3 Nc6 Nf3 g1B Be3 Na5 Qd2 c2 Qe1 c1R Ng5 Rd1 Nh7 Qe8 Nc3 b1N Ng5 b2 Qg3 Rc8 a8R Nh6 g8B Bg7 f8Q Nf7 Ra2 Kb3 Bd4 c4 e4 Nd8+ Kf5 Be5 Na4+ Nc3 Be3 b1Q Nb2 Na4 Ne6 c3 Qh3 c2 Ba6 c1N Qfh6 Ne2 Nc7+ Nc4 Nb5 Bf6 Qg5 Nd4+ Kf4 Rc5 Ra3+ Kc2 Rd3 Rh7 Rd2+ Kb3 Rb8 Ka2 Ra8 Ka1 Rd3 Na3 Ba2 Rc3 Nc4 Qb4 Bb1 Rh6 Rb8 Bg7 Rc8 Rf6+ Ke5 Rf2+ Kd5 Rg2 Rb8 Bh6 Ke5 e6 Kf6 Qh8+ Ke7 Bg7 Kd7 Qe8+ Kc8 Be5 Rd2 Bg7 Rf2 Bf6 Rf5 Bg7 Rc5 Bf6 Nb2 Nc4 Rd5 Qh5 Nd3 Ne2 Kc7 Nf7 Rg8 Rc2 Qf3 Bb2 Kd7 Rc3 Qg3 Nd4 Kc8 Nd8 Ne1 Qf7 Bd3 Qe8 Nc2+ Ka2 Nca3 Ka1 Kb8 Bf2 Qf3 Bg3 Bb1 Be5 Kc8 Bf4 Rf1 h1Q Qg3 Be5 Rf6 Qh4 Qh3 Bh2 Rh6 Ncb6+
Nnn1b1BK/Nk1r1q1q/1B1p3P/5P1q/4p1R1/2r1rQQQ/3R2q1/1n4bN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 e5 b4 g5 f4 a5 c4 a4 h4 e3+ Kd3 a3 Ke4 a2 Kf5 e4 Kg6 d3 b6 e2 c5 e1R c6 d2 h5 g3 h6 g2 c7 g4 f5 g3 b5 Rh7 b7 Re3 b6 Bc5 Na3 Qe7 Nh3 g1Q Rh2 g2 Qf3 d1N Bc4 Nc3 Nb5 Ra3 Nf2 Nb1 Nh1 Rac3 Na7 Qf2 Rh4 g1Q+ Rg4 Qfg2 Bd2 Qd1 Be1 Qde2 Bf2 Qd6+ Be6 Ne7+ Kf6 Qc4 Bg1 Qdh2 Bg8 Qh5 Qh3 Bd6 Qf3 Bh2 Bf2 Bg1 Qh3 Nd2 Rd1 Nb1 Rd2 a1Q Qf3 Qaa6 Qh3 Nbc6 b8Q Rg7 Qa8 Nb8 Qd5 Bb7 c8N Kd8 Qd3 Bc6 b7 Kc7 Nb6 Nc8 Qe2 Ba4 Qef3 Re7 Bf7 Qe6+ Kg7 d6 Kh8 Qac4 Bg8 Qeg6 Qfg3 Be8 Na8+ Kd7 Qf3 Qcf7 Qfg3 Re1 Bb6 Ree3 Nb5 Kc6 Qf3 Na6 b8Q Rd7 Qa7 Nb8 Qa3 Kb7 Na7 Rc5 Qc3 Rc6 Qe5 Rcc3 Qeg3 Qgh7+
2r1nk2/1N1r3q/KnPb2B1/b2Q3Q/3qR1PN/1b1nRnpr/p4B2/1N1R4 w - - 0 1 illegal: No proof kernel
6q1/n1NnBB1K/2Pb3b/1NrqQrQ1/1q1q1p2/1p3bRQ/k1P2r2/3R2N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kd2 Ke7 Kd3 b5 Ke4 d5+ Ke5 f5 a4 g5 h4 b3 e4 f3 c6 d4 h5 b4 a5 b2 a6 g3 a7 g4 h6 f2 h7 f4 Ra6 d3 Bd2 g2 Be2 f1R Ra1 g3 Bc3 d2 Qc1 d1Q Rh2 Rf2 Rh3 Bg4 Bf1 Bf3 Kf5 Kd6 Kg6 Kc5 e5 Bh6 e6 Q1d5 e7 Nd7 Ne2 g1Q e8N g2 Na3 b1Q Nb5 b3 Be5 Kb4 Qb2 Qe1 Rd1 Qd4 Bf6 Ne7+ Kf7 Qed2 Rg3 Nc8 Kg6 Rf8 h8Q Q2c3 Bh4 Rf5 Kh7 Qh1 Qg8 g1B Nec7 Ka4 Qg7 Qcb4 Be7 Rb8 a8Q+ Na7 Bh3 Rb6 Qc8 Qg8+ Kg6 Rc5 Be6 Ra6 Bf7 Ra5 Qc3 Rf5 Qe3 Qg2 Qe5 Qh1 Nd6 Ka3 Ndb5+ Ka2 Qe8 Rg2 Qc8 Be3 Ng1 Rf2 Nd6 Rc5 Ndb5 Qf8 Qg8 Bc1 Kh7 Ba3 Qg5 Qe8 Bd6 Qe6 Be7 Qh5 Qcg8 Qg4 Qh4 Qed5 Qh3 Qg5 Bd6 Qd8 Be7 Qf8 Qgg7 Qg8+ Kg6 Qbd2 Qe6 Rc4 Qe3 Bd6 Qe5 Qh8 Qgf6 Qb4 Qg5 Qd8 Kh7 Rc5 Qg8 Qc8 Qg5 Qg8+
rk1n1Q1n/1r3bbK/1RpbbB2/n1q5/3NQ3/N3Pp1R/1P4Br/q2R2Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 Kf5 f3 d4 f2 g4 h3 g5 a4 b6 c3 g6 h4 g7 c2 b7 h2 d5 a3 d6 a2 Qd3 h3 Bh6 c1B Nc3 Qg5+ Ke4 f5+ Ke5 f4+ Ke4 f3 Nd1 Bf4 e3 Nc6 b8Q Nge7 g8Q Ng6 Qc3 Rh7 Qcb4 Bg7 Bg2 f1B Ne2 Nd8 Ndc3 c6 Nb1 Qc5 Nd4 Bc4 Bg5 Nh8 Bf6 Bf7 Na3 Be5 Rab1 a1N Kf5 Nb3 Rbd1 Na5 Qa4 Ba6 Qc2 Bac4 Qe4 Bcd5 Qb4 Kc8 d7+ Kc7 Qe1 Kb8 Qg1 Bd6 Qf8 Rh6 Be5 Re6 Bf6 Re7 Kg5 Bde6+ Be5 Bf6+ Kh6 Bg7+ Kh7 Bd5 Bf6 Bc4 Qf2 Bce6 Rhf1 h1Q Qg1 h2 Rf2 Qb5 Rc2 Qb4 Rc5 Qb5 Rh5 Qc4 Rh3 Qc5 Qf2 Qf1 Qg1 h1R Rd3 Rh2 Rb3+ Ka7 Rb8 Qa1 Rb6 Ndb7 d8R Rc7 Rd7 Nd8 Nc4 Rb7 Na3 Kb8 Nf5 Bf4 Rd1 Bc7 Nd4 Bd6
K1bQ1bnk/5R2/N1pq2R1/1p1PNb1q/2nRr1P1/3rQ1B1/5qN1/1B3br1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d6 h5 Kf2 b5 Kf3 f5 e4 Kf7 a4 Kg7 g4 h3 d4 h4 d7 h2 a5 h3 e5 b3 a6 b2 e6 Bc5 e7 Ba3 e8Q Rh7 a7 Rh5 Nd2 b1R Nc4 Nc6 Ne3 Bf8 Bd3 Kh8 Ra6 Na5 Rg6 Rg5 Bb2 Nc4 Bc3 Qe7 d8R Rb3 Qe1 Ra3 Rd5 Qd6 Qd8 Rh5 Ng2 Rg5 Kf2 f3 Qe2 f4 Qe3 Bd7 Be1 Bc8 Nh4 Ra1 Bf5 Rc1 Bb1 Re5 Ng2 Re7 Rf5 Rd1 Rf7 Rc1 d5 Re4 Kf1 f2 Ke2 Rd1 Nf3 Rc1 Nd2 f3+ Kd3 Rd1 Kc3 f1Q Bg3 f2 Rg1 Qe1 Kb3 Rc1 Nf3 Qd2 Rd1 Qe2 Rd3 Rg1 Rd2 f1B Ne5 Qf2 Rd4 h1B Ne1 h2 Kc3 Bf3 Ng2 h1Q Kb3 Rf4 Kc3 Rb8 a8N c6 Nc7 Ra8 Kb3 Ra2 Na6 Be4 Kc3 Rd2 Kb3 Qe7 Kc3 Bef5 Kb3 Nd6 Kb4 Rd3 Ka5 Qh5 Kb6 Qf6 Ka7 Re4 Kb8 Nc4 Ka8 Qd6
krnR1BNr/8/1bp1nP2/N2QPp2/rbKR4/qB1Q3Q/1R4n1/2r2bq1 w - - 0 1 illegal: No proof kernel
2rBQQBb/q7/2p1P3/3Q2b1/2qNrNp1/1nqr4/1qR2Pb1/1K1kBn1R w - - 0 1 illegal: No proof kernel
R1Q2r2/3qrk2/KPn1qNp1/1nB4p/6P1/b4q1r/QbqRR1BB/5bN1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 axb5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kd2 f5 Kd3 a5 Kc4 d5+ Kb3 g6 Ka4 d3 g4 d4 e4 f3 b4 d2 c4 d3 e5 f4 b6 f2 Kb5 a4 c5 f3 c6 a3 b7 a2 c7 Nc6 b8B Ba6+ Kb6 Na7 c8R+ Kf7 b5 Ne7 Ka5 Nec6+ Kb6 Ba3 Qc2 d1Q Nd2 Qe2 Ne4 d2 Re8 d1Q Bg2 f1Q Be3 f2 Nf6 Qd7 Bc5 h5 Rd1 a1B Rd2 Rh7 Qa2+ Qc4 Rh8 B1b2 Bc7 Rf8 e6+ Kg7 e7 Qce6 B7d6 Kf7 Bf4 Qfd3 Re2 Qhh3 Rh2 f1R Rd2 Qc2 e8Q+ Kg7 Qa8 Kf7 Qc8 Rf3 Bfd6 Rb3 Re2 Qf3 Bf4 Ne5+ Ka5 Rg7 b6 Bc4 Rd2 Nb5 Ka6 Nc6 Rh6 Qf1 Qc7 Rc8 Be4 Rh3 Rh8 Rb8 Bh1 Qf3 Rhg2 Rd8 Bh2 Bf1 Rge2 Rgg8 Bg2 Rde8 Qb8 Re7 Qb7 Rg7 Ra8 Rg8 Qc8 Rf8
B3q2K/R4N2/BpnQ1r1b/4R3/2PQ3B/qrnqPN2/bb1p2n1/3k2Nn w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 a4 Ke4 h4 f5+ Kh3 d5 h6 g5 a5 f3 h5 f4+ Kh2 b3 a6 b2 a7 g4 c3 b6 h7 f2 h6 f3 Kg3 d3 Bh3 f1N+ Kf2 d4 Qb3 d2 Qb4 d1N+ Ke1 g3 Bd7 g2 Nd2+ Ke3 Qb5 b1Q Qc6 d3 Ra6 Qe8 Qd6 Nc6 Ra1 Qb4 Rh4 Nf6 Rh5 Ng3 Re5+ Nfe4 c4 Qa3 Bf5 Nh1 Ra2 Rg8 h8Q Rg3 h7 Bh6 Bh3 Rb8 a8B Bf5 Bg4 Bg6 Bc8 Rb7 Ra1 Rf7 Ba6 Rf6 Qg7 Rh3 h8N Bh7 Nf7 Rg3 Nh3 g1B Kf1 Bh2 Ng1 f2 Ndf3+ d2 Bb2 Rh3 Kg2 B2f4 Qg4 Rg3+ Kh2 f1Q Qgd7 Kf2 Qd4+ Ne3 Q7d6 Nc3 Ra2 Rg2+ Kh3 Rg3+ Kh4 Bb1 Kh5 Bg7 Ra1 Bfh6 Ra2 Qc5 Ra4 Qa3 Ba1 Ba2 Bb2 Rf4 Ba1 Rh3+ Kg6 Rf6+ Kh7 Rg3 Bc8 Qh3 Ra7 Kf1 Ba6 Ng2 N3g5 Ke1 N5f3+ Kd1 Bb2 Qhd7 e3 Rg5 Re7 Rb5 Re5 Bf8 Kh8 Rb3 Qf4 Qf5 Qdd4 Qd3 Qg3 Qc5 Ba3 Qa5 Be7 Qa3 Qg6 Rf5 Bg5 Rf6 Bh4 Bfg7+ Kh7 Na4 Qf4 Re6 Re4 Ba1 Re5 Bb2 Qd4 Bf4 Kg7 Nc3 Qf6 Rd6 Qe7 Rf6 Qed6 Qe7 Kg8 Bh6 Kh8 Qe8+
k1N3nn/6B1/npP1rQ1B/1q5p/1N1qnr1Q/bP2R2r/4b3/1R2BKRb w - - 0 1 illegal: No possible last move, all moves rejected
2rb1B2/1rn2B2/pkn2Nb1/nb2Q1BP/4R1Pr/K1p1R3/4q1qN/R1Q4b w - - 0 1 illegal: No proof kernel
3Bn3/KQ4R1/p1B1rQ2/nqN1Pb2/np2r3/R2Qq1PN/N2q4/r2kq1b1 w - - 0 1 illegal: No proof kernel
3n3r/Rr2qNK1/p1br4/Q1P1qp1r/BB1Pnk2/B1N1b3/R2N4/1bq1Q3 w - - 0 1 illegal: No proof kernel
1k6/1nRn3q/pr1Q1BP1/N2q2nB/1Q2b2B/r1r1P3/N1p3K1/b1Qb2bR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 f5 b4 h5 g4 c5 b6 f3 d5 c3 b7 Kc7 g5 h3 b5 h2 g6 c4 Qc2 f4 Qb2 h4 Qb4 h3 Bg2 Bc5+ Kf1 f2 Be3 Ne7 Qa3 Nf5 Bf3 Nd6 Qc1 Bg4 Qd2 a6 Ra5 c2 Qd1 c1B Na3 c3 Nc4 c2 Bd4 Bb2 Qc1 Ba1 Bf6 Qg8 Ra3 Nd7 Rc3 Rc8 Na5 Rh4 Be7 Qh7 Qa3 Rh5 Bf6 Re5 Qb2 Re3 Qc1 Be6 Bh5 Bg4 Rc4 Rg3 Bh4 Rd3 Nf3 Ra3 Rg1 h1B Nd4 h2 Ndc6 Bhf3 Nb4 h1Q Na2 Rb8 Bf6 Bf5 Bg4 Q1h5 Rh1 B5e4 Rc3 Qf5 Bh5 Bg4 Rf3 Bcd4 Kg2 f1R Bh4 Bg1 Bf6 Rd1 Bh4 Rdd3 e3 Ne5 Nc4 Rdc3 Na5 Bd3 Rf1 Bd1 Rf2 Be4+ Rf3 Ra8 b8B+ Kc8 b6 Qe6 Ba7 Rb8 b7+ Kc7 Bd4 Qf5 Kf1 Qg5 Rf2 f3 Rd2 f2 Rd3 Ng4 Bf6 Ne5 Rd4 Qf5 Rb4 Qfd7 Rc4+ Qc6 Bf3 Qc5 Kg2 Qc6 Rc5 f1N Rc4 Nh2 Rc5 Bf5 Bh5 Nhf3 Rc4 Be4 Rc5 Re8 Rc4 Re6 b8Q+ Kd7 Qbb1 Kc7 Qb4 Nb7 d6+ Kb8 d7 Qd5 Rc7 Rb6 d8Q+ Ka7 Qde7 Nd7 Qe5 Kb8 Qed6 Ng5+
2k2r2/nqr4P/Bb2qRpp/7Q/b1B2qN1/2rN1nR1/K2q1nPQ/2Q1B3 w - - 0 1 illegal: No proof kernel
r2K4/1b1BN1rP/R1QQbp2/PR2nQ2/R1p3r1/1rn3n1/4qB1k/1Nb3q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 e4 Ke5 h4 g5 d6 b5 a5 c5 h5 g3+ Kf3 c4 d3 g2 d7 b3 Kg4 b4 h6 f6 h7 b2 Rh6 b3 Qc2 f3 Ne2 g1R+ Ng3 f2 Bh3 f1N Be3 Ba3 Bf2 Qe8 Rh5 Bb7 d8R Ne7 Rd6 Nd7 Ra6 Rg8 Ra2 Nd5 Ra1 Rh1 Nf5 Nc3 Ne7 Ng3 Ra2 Rg7 Ra1 Bd6 Ra4 Rg1 d4+ Ke6 d5+ Ke5 Be1 Ba3 d6 Rg2 Bf2 Rg1 Nd2 b1B Qd3 Bc2 Nb1 Bc1 Qf1 b2 Qd3 Nb8 d7 Nc6 d8Q Rg2 Kf3 Rg1 Bd7 Rg2 Kg4 Rg1 Kh3 Kf4 e5 g4+ Kh4 Bd1 e6 Ne5 Qc2 Kf3 Qf5+ Kg2 Qb8 Kh2 Qd6 Nge2 Rg5 g3 Rh5 g2 Rg5 Rf7 Kh5 Ng3+ Kh6 Rf8 Kg7 Bg4 Nc8 Qh5 e7 Rf7+ Kg8 Bh3 e8Q Qe2 Ne7 Rg7+ Kf8 Bg4 Qc8 Bh3 Ke8 Bg4 Na3 b1R Kd8 Rb3 Nb1 Bh3 Qe4 Be6 Qec6 Rd1 Rf5 g1Q Rg5 Rd4 Rf5 Nf3 Rb5 Rdg4 Qcc5 Ra7 Qf5 Ne5 Qcc6 Ra8+
Q7/Q2K1np1/B1RN1n1r/n4qbb/rp1R2b1/5R1P/1B1N1BPq/4b1rk w - - 0 1 illegal: No possible last move
Rb6/N1Rr2p1/b2nBr2/1Pb2Qq1/1nP1Q3/rk2Nr1n/2p2QK1/q1B3B1 w - - 0 1 illegal: No proof kernel
3n1N2/2brkPN1/1n2q1b1/1n1pRb1R/2r4K/1p1rB2Q/1Pq3B1/nB1Q1Q2 w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qxa5+ Ke2 Qa6+ Ke1 Qa2 g4 e5 c4 d5 f4 b5 Kf2 a5 c5 h5 f6 e4 f5 h3 Kg3 a4 c6 a3 f7+ Ke7 c7 h2 g5 h4+ Kh3 d3 g6 b4 g7 e3 Qa4 b3 Nc3 d2 Bc4 d1N Qa5 e2 Bb5 e1Q Bh6 Nc6 Na4 Ra7 Be3 Nc3 Nf3 Nf6 g8B Nd7 Bf1 Nd8 Ne5 Nb5 Bh7 Qab1 Bg2 a2 Nc5 Nb6 Ned7 Qc2 Ne6 Bh6 Bg6 Bf4 Qd2 Rb7 Rc1 a1N Ng7 Bd6 Kg4 h3 Qd1 Rh4+ Kg5 Ra7 Nf8 Rc4 Kh5 Bd7 c8Q Bc7 Kg5 Qee2 Re1 h1B f6+ Kd6 B6e4 h2 Kh4 Bf5 Rb1 Bg6 Qh3 Rb7 Bf1 Bf3 Bg2 h1R Rc1 Bg4 Bf5 Qc3 Bb1 Rf1 Rc2 Rf3 Rh1 Qee1+ Rf2 Rg3 Rf5 Qc2 Rh5 Ra7 Rf1 Qee2 Rff5 Rf3 Re5 Rg3 Bg5 Rd3 Bf4 Qe4 Be3 Qf5 Nh7 Qe6 f8Q+ Kd7 Qf7+ Kd6 Nf8 Rb7 Qg8 Ra7 f7 Ke7 Qh8 Rb7 Qh6 B4f5+ Qf4 Rc5 Qff1 Rc4+ Qdg4 Bb8 Qd4 Rd7 Qdg4 Bd6 Qd4 Bc7 Qdg4 Rc5 Qgd1 Rc4+
bKR1Q3/5P2/rnBbb1P1/1n1RR3/1B1Br3/N1np1Q2/1bp3qN/k2qr3 w - - 0 1 illegal: No proof kernel
r1Br3n/R2Qqpnq/Q3B1rn/2RNK3/8/2NP3b/1P4kp/2BnqRb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 c5 b6 a5 g5 a4 g6 f3 g7 f2 b7 h3 e3 c3 d3 c4 Nf3 h4 Qc2 a3 Ng1 h2 Ne2 a2 Nd2 h3 Bg2 f1N Ng1 Na6 b8Q Qe7 Qb1 c2 Ndf3 c3 Qf4 Nc7 Qh4 Nh6 g8B Ne8 Ne1 Ng7 Ne2 Ra6 Kd4 Kf5 Bb7 Rg6 Bh7 Rg8 Qf6+ Kg4 e4 Ne3 e5 Nd1 Rf1 h1Q e6 h2 Qg5+ Kh3 Qb5 Qf3 Bd5 Qh5 Ng2 Qf5 Ne3 Rh8 Bd2 c1N Qd7 c2 Nc3 Qh5 Ke4 Ne2 Bc1 Nf4 Bc4 Qhh4 Ned5 Kg2 Ke5 Qh3 Be3 c1Q Ba6 Rf6 Bf5 Rg6 Qc2+ Qd2 Qca4 Qe1 Bc4 Qh5 Qa6 Rg8 Rc1 a1R Ba2 Qe8 Bc4 Bc5 e7 Qd8 e8R Qe7+ Qde6 Bd7 Ra8 Rd8 Ra7 Qhh4 Ne4 Qh5 Rc3 Ra5 Bc1 Bg1 Ba2 Ng8 Rc5 Qh7 Bb3 Nh6 Bc4 Qe8 Qe7 Be6 Qd7 Qe7 Bg4 Ra3 Nc3 Bf5+ Be6 Ra4 Nd5 Ra3 Bh5 Bh3 Bg4 Ra2 Qa3 Qa5 Qda4 Rd6 Rd7 Qd2 Nec3 Rf6 Rdc7 Rd8 Qb5 Qf8 Bd7 Qe7+ Bge6 Ra1 Bc8 Qe1+ Ne2 Ra2 Qd7 Ra1 Qa8 Ra6 Qac6 Ra8 Ra7 Ng6+ Ke4 Ne3 Nec3 Nh8+ Ke5 Rg6 Qa6 Nd1+
q2b2q1/3r1p1n/2kqNnp1/R1B5/bB2KQ2/nq4r1/1RR2PPQ/1b2Q2N w - - 0 1 legal: proof: h4 b5 a4 c5 axb5 e5 d4 cxd4 e3 Qxh4 Ra4 e4 Bd3 exd3 Ra1 Qh2 Kd2 h5 b4 a5 c4 d5 e4 Kd7 e5 a4 b6 h4 e6+ Kc6 b7 a3 e7 a2 e8R h3 c5 g6 Re5 Ra3 Bb2 Bf5 Nc3 Be7 Qh5 Nf6 Nf3 Bd8 Ng5 Nh7 Rhb1 Nd7 b8B Ndf6 Re2 Qd6 Nce4 h2 Ba7 h1Q Ne6 Qb8 Bb6 Qa8 Qh2 Re8 Bc3 Re7 Ba7 Rd7 Rb2 Qb1 Rc2 Qb3 Ng3 Be4 Nh1 Bf5 Rb1 a1N Re5 Be4 Rbb2 Bf5 Kd1 d2 Ke2 d3+ Kf3 d1Q+ Kf4 d4 b5+ Kb7 b6 d2 Bb4 d3 Ke3 Kc6 b7 Qc1 b8Q d1Q+ Rd2 Qcc3 Rdc2 d2+ Kf4 Qd3 Rd5 Q1e2 Qe5 Qh5 Qe1 Qh6+ Ke5 Qf8 Kf4 d1B Re5 Kb5 c6+ Qdd5 c7 Qg8 Bac5 Qd6 c8Q Bd3 Re2 Bb1 Qb8+ Kc6 Red2 Nc2 Re2 Raa7 Rd2 Na3 Rdc2 Qdf8 Rf5 Rd3 Ke5 Rg3 Kd4 Re7 Qf4 Rd7+ Rd5 Be2 Ke5 Bb5 Kd4 Ba4 Ke5 Ng4+ Ke4 Qd6 Bd4+ Qc4 Ra5 Qc3 Bdc5 Qb3 Qh5 Qdb8 Qhh6 Qd6 Qh2 Ngf6+
1Bnk1rn1/5pB1/2b1qPNN/1B2p3/RQN3bP/rbr2q2/1K2n3/1r4RQ w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 e3 d5 Qf3 e6 Nh3 d3 Qd1 d4 Ng1 Be7 Bh3 d2+ Kf1 d3 Kg2 Qd6 Ne2 Bf6 Ng1 Bd4 exd4 Qc6+ Kg3 Qa6 Bf1 Qd6+ Kg2 Qd8 a4 b5 c4 g5 h4 e5 f4 g3 Kf3 g4+ Ke3 g2 c5 b3 c6 b4 c7 g3 d5 b2 a5 b3 f5 Qe7 f6 Be6 c8N Qa3 a6 Rh6 a7 Nd7 d6 Bg4 Ne2 g1N Nf4 g2 Qe1 d1Q Ng6 d2 Kd3 Qa2 Kc3 Nb6 d7+ Kd8 Na3 b1R Bb5 b2 Nc4 Rh8 N8d6 Nc8 Nf5 Qf3+ Kc2 Qa6 Nh6 Qe6 Ra4 Ne2 Rg1 d1B+ Kd2 Rb8 a8Q Bb3 Qa5+ Rb6 Qb4 Rc6 Qf1 Ra1 Qe1 b1B Ba3 Nc3 Kc1 Be4+ Kb2 Ne2 Qd1 Rc5 Qf1 Bc6 Qfe1 Kc7 d8B+ Kd7 Be7 Kc7 Bf8 Kd8 Rf1 g1R Bg7 Rg3 Rg1 Rc1 Nd6 R5c3 Nc4 Nge7 Qf1 Rf8 Qg2 Ng8 Qh1 Bd1 Qb3 Bc2 Bd6 Ra1 Qa3 Bb3 Qb4 Ra3 Bb8 Rg2 Kb1 Rf2 Kb2 Rf1 Nh8 Rd1 Ng6 Rb1+
3q2b1/4qpBn/4PN2/1q1Qn3/brPKRN1n/Q5pR/3brkNQ/1B5b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 b4 Ke5 h4 a5 h5 d5 h6 g5 b6 a4 h7 a3 c3 a2 b7 d3 b5 d2 b6 f3 Ke3 d4+ Kd3 Kf4 e5 Kg3 e6 f2 Na3 Nd7 b8N Ne5+ Ke4 d3 b7 Bh6 Rh2 Nf6+ Ke3 Ra4 Nb1 Rb4 Qe1 d1B Nf3 d2 Rh4 Ba4 Nd7 d1B b8Q Bb7 Qd6 Bdc2 Qed1 Bce4 Ba6 f1Q Ne1 Qb5 Bb2 Bec2 c4 Bh1 Kd4 Kf2 Ng2 g3 Nc3 g4 Ne2 Bd2 Bb7 Be4 Rc1 a1Q Rh3 Qa3 Nef4 Rg8 h8Q Bh7 Qf8 Rg7 Ra1 Bg8 Be4 Nh7 Bb1 Rg6 Qd6 Rh6 Nf6 Rg6 Ne3 g2 Ra2 g1N Neg2 g3 Qc1 Rg5 Qd5 Ng6 Ba1 Re5 Rb2 Re2 Qc3 Qa2 Qa3 Nh4 Rb3 Qe7 Re3 Qd8 Re4 Ngf3+ Kd3 Ne5+ Kd4 Qe7 Qb3 Ng4 N6h5 Nf5+ Kd3 Nf8 Bg7 Qd8 Rh2 Qa3 Qc3 Rb3 Nf6 Qae7 Rh4 Rb4 Qa3 Nfe3 Qh6 Ne5+ Kd4 Nh7 Rg4 Rb3 Qh2 Rb2 Rh4 Rb4 Ne1+ Ng2 Rh6 Kf1 Rh3 Nh4 Neg2 Kf2
3nr3/1b1rP3/3BKb1r/4R1pR/Q1N2b1n/P1k3q1/b1B1pn2/q3NQBQ w - - 0 1 illegal: No proof kernel
1n5K/krn1P3/2B2q1p/pRnRr1n1/1N3B2/2q3QP/1b1Q2R1/qN1B1bb1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 a5 Kd3 g5 Ke4 d5+ Ke5 Kd7 e4 Kc7 f4 Kb7 c4 g3 h3 d3 c5 d4 c6+ Ka7 c7 d2 f5 b3 f6 g2 f7 h6 Bd3 b2 Qh5 d1Q Bc2 g4 Ra2 d3 Nf3 g1B Ne1 d2 Qg5 g3 Nd3 g2 Qg3 Ba6 c8B Qf3 Bd1 Rh7 Bb7 Nf6 Bc6 Bg7 f8Q Nd5+ Ke6 Be5 Qd6 Rb7 Nb4 Qc3 Rh2 Bed4 e5 Nc7+ Kf7 Qg5 e6 Qf6+ Kg8 Be5 Be2 d1N Bf4 Nf2 Qd2 Ne4 Bd1 Nc5 e7 Bed4 Na3 b1Q Rb2 Qa1 Nb1 Qe3 Rb3 Bb2 Rd3 Qee5 Rd5 Qc3 Qf3 Be3 Qg4 g1N Rg2 Nf3 Qh4 Bg1 Qg3 Nbd7+ Kh7 Rab8 b6+ Ka8 Qe3 Bf1 Qc1 Rg8 Qd2 Rg7+ Kh8 Ng5 Na2 Nb8 Nb4 Rf7+ Kg8 Nba6 Qh2 Qfe5 Rg3 Rf5 Rg2 Qf6 Qg3 Kb8 Bf3 Ra7 b7 Re5 Bh5 Ra8 Bd1 Ka7+ b8R Nh7 Be8 Ng5 Rb6 Rb8 Rb5 Rb7 Bc6 Qe6+ Kg7 Nb8 Kh8 Qf6+
5nb1/2KNP1rq/4p2b/1bRq1RB1/4rn1Q/1qNB4/2p1bP2/QBR1rk2 w - - 0 1 illegal: No proof kernel
5rn1/1RQBP3/qn2p3/5P2/NK1q1Q1p/1Q4Bb/1nr1rbN1/R2n1Bkq w - - 0 1 illegal: No proof kernel
K4QbQ/1N1Pq1b1/q1r3B1/1NnB1PpN/1p1Bn3/2bR2bk/6n1/1Rr1q3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 e5 a4 b5 d4 g5 h4 c5 f4 c4 d6 Ke6 a5 Kf5 h5 c3 d7 c2 h6 b3 h7 g3 a6 g2 a7 b2 d5 b4 d6 Qe7 d8N Na6 Ne6 Bg7 Rh2 Nf6 Nc3 b1Q Rh6 Nc5 Nge2 Kg4 Nd8 Be6 d7 Rc8 a8B Rc6 Bb2 Bg8 Qd6 Qe1 Rb1 c1N f5 N1d3 Nb7 Nf4 Rg6 Kh3 Nb5 Be6 Bc3 Rhc8 Bd4 Bg8 h8Q+ Qh4 Kd2 e3+ Kc2 e4 Ng3 e2 Nh5 e1Q Bc4 g1B Bf7 e3 Rh6 e2 Bg6 Bf2 Rh7 Qd8 Qf8 Bg3 Rh6 Ng2 Kb2 Ne6 Kb3 Ne4 Ka4 Qe7 Ka5 N6c5 Rh7 Qf2 Rh6 e1B Rh7 R6c7 Kb6 Rc6+ Ka7 Bc3 N7d6 Rb6 Bd5 Rbc6 Nb7 R8c7 Ka8 Qe1 Na3 Qg4 Nb5 Qge2 Na7 Qb5 Rh6 Qb6 Nb5 Kh4 Bgf7 Kg4 Rd6 Kh3 Bg6 Bd2 Bgf7 Na6 Bb3 Rc4 Bc3 R7c6 Rd3 Nac5 Bd4 Rc1 Bg6 Bc3 Bd5 Qa6+
1Nrqnb1b/1k1P1QR1/p7/2rR1n2/RP4Q1/rp3N2/nN3B2/qKn2b1B w - - 0 1 illegal: No possible last move
2b4K/BrQpbn2/k2B1RR1/5qP1/p1q3NN/2B2q2/P4n1Q/n2b1Qnr w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 Bh3 e5 dxe5 gxf4 g5 Bd6 Bf5 Bf8 Bg4 hxg4 Kf2 a5 b4 f5 e4 c5 h4 a4 e6 g3+ Kf3 g2 b5 c3 b6 c4 e7 c2 h5 c3 b7 Rh6 e5 Nf6 Qf1 Ng4 Be3 c1N Nh3 c2 Nd2 Nb3 Ba7 c1Q Nf2 Nc6 b8B Qc4 Bd6 Qa5 Rd1 Rh8 h6 Rb8 h7 Nd8 Rh6 Nf7 Rg6 Rb7 Rb1 Na1 Rb6 Nf6 Ra6 Ne4 Ng4 Nf2 Rf6 Rg8 h8B g1N+ Kg2 f3+ Kg3 f4+ Kh4 Rg7 Kh5 Rh7+ Kg6 Rh1 Rc6 Nfh3 Kh7 f2 Nf3 Qab5 Qe1 f1Q Nh4 Qf3 Qf1 Qb1+ Kg8 Qf5 Ra6 Qg3 Rg6 f3 Bg7 f2 Rf6 Nh6+ Kh8 Qgf3 Rg6 Kf7 Bf6 Ke6 e8Q+ Kd5 Qd8 Be7 Rb6 Kd4 e6+ Kd5 Qc7 Nf7+ Kg8 Q5d3 Bc3 Qdf5 Qe2 f1B Qh2 Nf2 Kh7 Bf6 e7 Be2 e8Q Bd1 Qe1 Be7 Kg8 Qc5 Kh7 Kc4 Ra6 Kb5 Qf1+ Qc4 Kg8 Q3f4 Rc6 Nh6+ Kh8 Qf3 Rc5+ Ka6 Re5 Qcd3 Ree6 Qc4 Ref6 Nf7+
1N2b1B1/Nk1pN1QQ/n5pK/1q6/1qPr1R1q/1Qn1bb2/1BRP3r/1r3b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 f5 h4 a5 e4 b3 h5 b2 b6 f3 Kg3 f2 Kf4 g3 c3 a4 h6 g2 h7 a3 b7 a2 e5 Na6 b8N Ne7 Kg5 f4 e6 f3 Bd3 f1B Qe2 f2 Bc2 Bb7 Rh3 Bf3 Qb5 Nd5+ e7 Bh5 Na3 b1B Ne2 g1R+ Ng3 g6 Bb3 Bh6+ Kh4 Be3 Nf5 Qa5 Rf3 Qb4+ Rf4 Bbd3 Bb2 Bc4 Re1 a1Q Rc1 Ra7 Rc2 Qe1 Qb6 Rh1+ Kg5 Rh2 Ba1 Rb7 Nb5 Rf8 Ba2 Rf6 Na7 Rd6 h8Q+ Kf7 Rb2 Qa5 Kh6 Ke6 Kg7 Bg2 Nac6 f1Q Qb4 Qh4 Rc2 Bh3 Qa4 Rb1 Kh6 Qb4 Bb2 Bb3 Qa3 Qfb5 Qh7 Bf1 e8Q+ Ne7 Qhh8 Rd4 Qh7 Kd5 Na7 Kc5 Qa4 Kb6 Qf8 Bf7 Qfg7 Nd5 Ne7 Be8 Bc4 Kb7 Qb3 Nb6 Be6 Nd5 c4 Nc3 Bg8 Bf3#
3NQ3/k2pn1N1/1n3P1b/K2RQnb1/1B3Pr1/1qQ2Bqp/2rr3B/1R3r1b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Kd2 a5 g4 e5 f4 h5 c4 h3 b4 e4 b5 h4 g5 e3+ Kc2 e2 c5 e1Q g6 h2 g7 h3 c6 a3 Kb3 a2 Ka4 d3 c7 d2 b6 Rh4 b7 Nc6 b8B Rg4 Qb3 d1R Bd2 Ne5 Qb2 Qg3 Nf3 Bb7 c8Q Nc4 Ba7 Nb6+ Kb5 a4 Qe5+ Ne7 g8Q a3 Qcc3 Qb8 Ka5 Kd8 Be2 Be4 Re1 h1N Nd4 Qb7 Nc6+ Kc8 Qg6 Bh6 Bf3 Rc1 Qh5 Rc2 Rd1 Qb8 Be1 Kb7 Nd2 Qg8 Rab1 a1R Qf7 a2 Qe8 Qb3 Nc4 Rc8 Rd3 Rd2 Nd6+ Ka8 Nd8 Rc4 Qcd4 Rcc2 Qc3 Bb7 Rd5 Bc6 Rb2 Rac1 Rb1 a1B Qf8 Bg5 Ne8 Bb2 Ng7 Rcd1 Bf2 Rf1 Qe8 Bh6 Bb8 Ba1 Bd6 Ka7 Bg1 Bb7 Qc4 Bd4 Bh2 Bb2 Qe3 Bf6 Qcc3 Bfg5 f6 Rd3 Bg2 Qe1 Rc5 Rdd2 Qee5 Ng3 Bh1 Be4 Rd5 Ngf5 Bb4 Qf2 Bf3 Qg2 Bd1 Qg3 Be2 Bg2 Bf3 Bh1
2n4Q/1P4n1/R3n2b/npr1qN1k/b1qR3r/1B2BPR1/1K1Q1qNp/2b2B2 w - - 0 1 illegal: No possible last move, all moves rejected
Q4rR1/1Pb4q/2K1pn1q/1QR1r3/q1p2B1n/1R6/P1N1B1b1/1b1qnBNk w - - 0 1 illegal: No proof kernel
1N1q2k1/bP3rq1/Rnp1BnBQ/Qp6/1PbK1nR1/Bb1N2r1/N7/4q2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 f5 dxc4 f6 Qd6 a5 Qb6 axb6 exf6 Nh3 f5 Ng1 f4 Kf2 h5 e4 f5 d4 Kf7 g4 a5 b4 c3 b7 a4 e5 h3 g5 c6 d5 f3 Ke3 f2 d6 h4 d7 f4+ Ke4 a3 d8Q h2 Q1d3 f3 Ra2 c2 Qb3+ Be6 Nc3 h3 Bc4 f1B Qc7+ Nd7 Be2 f2 Nf3 Nf6+ Kd4 Rh7 g6+ Kg8 g7 Nb6 Rg1 h1Q Bd3 h2 Bg6 Bfc4 Ne1 f1Q Nd3 Qd1 Rg4 Qhe1 Qd8 Bf7 e6 h1Q e7 Ra5 Bb2 c1N e8N Ra6 Ra1 a2 Nc7 Ra3 Na6 Bfd5 Nb8 Ne2+ Ke5 Nf4+ Kd4 Qdd2 Qd6 Bf7 Qa4 Bb3 Qa5 Bfc4 Rb1 a1Q Na2 Qe7 Rc1 Qd8 Rc3 Qae1 Rc1 Qdg2 Ra1 Ba4 Bc1 Rc3 Ba3 Bab3 Nf2 Rg3 Nd3 Be7 Be4 Kf7 g8B+ Kf8 Bgd5 Rf7 Bg6 Kg8 Be6 Qgh2 Rd1 Qh8 Rc1 Qg7 Ra1 N4d5 Qf4 Bf8 Qh6 Nf4+ Bd5 Bd6 Be6 Rg2 Qa6 Qh2 Nac1 Nc8 Bb2 Qhh1 Ra5 Rg1 Ba3 Rg3 Na2 Be7+ Bd5 Bd6 Qb6 Bf8 Ra6 Bd6 Qa5 Bc7 Nd7 Bb8 Be6 Nb6 Ndc1 Qe7 Nd3 Ba7 Nb8 Qd8+
2bB4/1PRr1RNp/k7/b1Rnq1nB/P1q3n1/Kr4Qb/2QQp3/2N3qn w - - 0 1 illegal: No proof kernel
K2Q4/1P1R3p/1NBq1Bn1/rb1p4/QRr2BN1/3P1k1b/1qnR3q/b1q3n1 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kd5 Kf4 g4 a5 c4 e5 c5 b3 c6 h3 f3 e3 c7 h2 b6 b2 g5 e4 g6 e2 g7 e1N Ra4 Na6 Na3 b1B Nc4 e3 Rb4 e2 Bg2 Bd3 Qa4 Ne7+ Kd6 Bf5 g8R Bh3 Rg7 Ng6+ Re7 Kg3 f4 Bg7 d3 Nf3 f5 Ba1 f6 e1Q f7 Qd2 f8B Qb2 Bg7 Rg8 Rb5 Nb4 Bf6 Nc2 Rb4 Ba6 c8Q Re8 Rg7 Re4 b7 Qe7+ Kc7 Qd6+ Kd8 Rh4 Nb6 Rc4 Bf4+ Kg4 Rf7 Ra7 Qc7 Qc1 Kc8 Qb2 Qa3 a4 Kb8 Qc1 Qb3 a3 Qa4 a2 Re7 Nfe5 Bc6 Nf3 Ne2 Qb2 Ng3 Ng1 Ne4 Kf3 Rf7 Qe6 Qc8 d5 Rd7 Qd6+ Qc7 Ne2 Re1 h1Q Rd1 Qh2 Rd2 Ng1 Nf2 Bb5 Rf7 Ra5 Ng4 Ba6 Ka8 Qc1 Ne3 Be5 Qc8 a1Q Ng4 Qa2 Qe8 Ba1 Rd7 Qab2 Qd8 Bb5+
3k2rr/PR1N3p/2QP3q/3b2K1/3p1n2/3Bq3/br1BQ2n/1RqQRNbq w - - 0 1 illegal: No possible last move
4RRN1/PB1k2p1/Q6N/1r2qnPn/1b5N/1R1r3r/q2pbQq1/B1nK2n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 c5 g5 cxd4 Qg4 hxg4 a4 b5 c4 d5 h4 e5 f4 g3 f6 b3 f5 e4 c5 b2 a5 d3 c6 d2+ Ke2 d1Q+ Ke3 g2 h5 b4 a6 b3 h6 Qf3+ Kd2 d4 a7 d3 c7 Kd7 h7 Nh6 f7 Ba6 f6 Nf5 Nc3 b1Q Ra3 b2 Nd5 Qe7 Rb3 Qe5 Ne7 Qa2 Ng8 b1R+ Bb2 Qh3 Nf3 g1N Nh4 Qg2+ Be2 Bd6 f8Q Bb4+ Rc3 Bb5 f7 Bc4 Qc5 Bb5 Qf2 Bc4 Bd1 e3+ Ke1 e2 f8R Bb5 Kd2 e1N Bc2 Bc4 Ba1 Rb2 Kc1 d2+ Kd1 Nd3 Rb3 Nc1 Be4 Bf1 Bb7 Rb1 Re3 Rb3 Rhh3 Rd3 c8Q+ Kd6 Nh6 Nd7 Ng8 Nf6 Qe6+ Kc7 Qa6 Nh5 Rhg3 Kd7 Rgf3 Qf4 Ree8 Rb8 Rh3 Qe5 Rf3 Rd4 Rb3 Rd3 Ne7 Rg8 h8N Rh3 Nf7 Rd3 Bd5 Rb5 Bb7 Rh8 Ng8 Nf6 Ng6 Rhh3 Nfh6 Nh5 Nh4 Be2+
1b1n2R1/P1Qp2Q1/1P6/KN4qb/B2q3Q/1N2p3/rkrn3B/Rqq1r1bN w - - 0 1 illegal: No proof kernel
KnQ3Qn/p4QNr/1B2B1p1/2BRn1R1/P4b2/2kN1P2/2b3r1/brq2q1r w - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b3 h5 b4 hxg4 bxc5 d5 Qc2 dxc4 Qa4+ Nd7 Qd1 Nb8 Ke2 Kf7 Ke3 Kf6 a4 Ke5 h4 b5 f3 c3 c6 b4 c7 b3 h5 g6 h6 b2 h7 c2 Bh3 g3 Na3 b1R Be6 g2 Nb5 Nh6 Nd4 Nf7 Nf5 Bg7 Ne2 g1R Nf4 Rg2 Ba3 c1B Qb3 Qd5 Rh5 Qb5 Bc5 Qf1 Ra2 Ba6 c8Q Bd3 Rg5 Bc2 Qb5 Bf6 Qbe8 Bg7 Bd7 e6 Nd3+ Kd5 Qf8 Ba1 Ng7+ Kc4 Kf4 e3 Ke4 e5 Qg8 Kb3 Kd5 e2 Be6 e1N Qcf8 Nh6 Qff7 e4 Qc8 e3 Qcg8 e2 Qc8 Rg8 h8Q Rf8 Qh7 Rh8 Qhg8 Bd1 Rc2 Rh7 Rc4 Bc2 Rd4 Bd1 Kd6+ Kc2 Rdd5 Kb3 Kc7 Bc2 Qf4 Nf7 Kb7 Nh8 Qff7 Rh1 Nb2 Rh7 d4 Bf4 Nd3 Kc3+ Nb2 Rd1 Nd3 Rh1 Rde5 Rh7 d5 Rh1 d6 Rb1+ Nb4 Rh7 d7 Nd3 d8B e1Q Rd5 Ne5 Bdb6 Qc1 Nd3 Nbc6 Qcc7 Rf8 Qc8 Nb8 Ka8 Rh1 Qfb7 Rf5 Qbf7 Rh7 Rg3 Rfh5 Rg5 Rh1
1q1Q3B/prp1Nn2/B2Nk3/1br1b2B/Q3qrRq/2PP2b1/6R1/2Kn1Rq1 w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 g4 Kd7 b4 e5 c3 h5 d3 f5 Kd2 h3 b6 f4 g5 f2 b7 f3 b5 h2 g6 h4 b6 e4 g7 h3 Ne2 e3+ Kc2 Nf6 g8B Nc6 b8R Ne4 b7 Bg7 Ra2 Ne5 Bd2 Nf7 Ra1 Rh5 Nd4 e2 Nc6 e1B Ne7 Rc5 Ra5 Be5 Kc1 Ke6 Qa4 Bd7 Na3 Bb5 Be2 f1R Bg5 Nf2 Bf6 Nd1 Nc4 B1g3 Nd6 f2 Bh5 Qe8 Rd8 Rb8 Bh8 Qf8 Rg1 h1Q Rg2 h2 Rd7 Qc8 Rd8 Qg1 Rf8 h1Q Ra6 Qh4 Rb6 Bd7 Rb4 Bb5 Rg4 Qgh1 Rg1 Qe4 Rg2 Ra8 b8Q Qe8 Qd8 Rb8 Bg7 Rb7 Bf6 Re1 Bg7 f1Q Bh8 Qg1 Bh7 Qc4 Be4 Rf1 Bc6 Rf4 Be4 Rb6 Bb7 Qe4 Ba6 Rb7 Rfg8 Qf6 Rf2 Qh4 Rf1 Qd7 R8g7 Qc8 R7g5 Qb8 Rg7 Bf2 Rg2 Be1 R7g4 Bg3
4nR2/Q4B2/rb2Nr1k/2B1n1N1/3KR3/p2Q2Bb/PbbPnNbp/2qb4 w - - 0 1 legal: proof: f4 b5 h4 g5 c4 bxc4 e4 gxh4 f5 d5 exd5 e6 Kf2 exf5 Ke1 f4 Kf2 h5 b4 f5 g4 Kf7 d6 Kg6 b5 a5 d7 c5 b6 h3 b7 a4 g5 a3 Qg4 c3 Qf3 c4 Ke2 c2 Qc6+ Nf6 Qb5 c3 Kd3 f3 Bb2 c1B Qc6 h2 Qc5 f4 Nh3 c2 Qf2 h4 Be5 Bc5 Bd4 Rf8 Be2 Bb6 Nc3 Ne8 Bh8 Ra6 Bd1 Qc7 d8N Bf5+ Ne4 Rf6 Be2 Nd7 b8B Bb2 Rhb1 h1B Rf1 Bg2 Ne6 Kh5 g6 Kh6 Qg3 f2 g7 f3 Nhg5 h3 g8Q h2 Qf7 Bgh3 Rfe1 f1B Rac1 Bfg4 Nf2 Bfg2 Rf1 Qc5 Rce1 c1N+ Ke4 Ne5 Bc4 Ne2 Qa7 Bh5 Bd6 Qc8 Bc5 Nc3+ Kd4 Bf5 Qh3 Bc2 Qf5 Qc6 Qd3 Bg4 Re4 Qc7 Nfh3 f2 Bb3 Bgd1 Bg7+ Kg6 Bf8 Qc6 Bd6 Kh6 Bb8 Nf7 Bg3 Ne5 Rh1 f1B Nf2 Bh3 Bc4 Bfg2 Rhe1 Bf1 Rf4 Qh1 Ree4 Bfg2 Rf3 Be2 Rf5 Qc1 Rff4 Bed1 Bd5 Rg6 Rf8 Rf6 Nd8 Ng4 Bf7 Ne5 Nde6 Ne2+
B1K4k/1b1R3N/nb3rQ1/1B5b/2pn1P1p/1N1rQP2/1b1R1Q1q/1bB2br1 w - - 0 1 legal: proof: h4 d5 c4 dxc4 b4 f5 h5 a5 e3 axb4 h6 f4 exf4 gxh6 Qc2 h5 Qd1 h4 Ke2 Kf7 Ke3 Kg7 Ke4 e5 g4 h5 a4 c5 d4 b5 f3 c3 a5 c4 a6 h3 a7 h4 d5 c2 g5 b3 d6 h2 Kd5 b4 g6 e4 d7 e3 Ke6 e2 Qd3 e1R+ Be2 b2 Ra2 b3 Bd2 c1B Qd5 Bb7 Qd3 Rh6 Nh3 Bc5 Ng5 Kh8 Nh7 Rg1 Qe3 Na6 Bd1 Ne7 Bc2 Rb8 a8B Bb6 Be4 Nf5 Bc6 Qg5 Bb5 Qg3 Qf2 Rf8 d8Q Nd4+ Kd7 Rh5 Qc7 Rf6 Qc5 Re5 Qe7 Re3 Qe6 Rd3 Qee3 Rg2 Re1 h1B Rd1 Rg1 g7+ Kg8 Nc3 b1B Na4 b2 Nc5 Bg2 Nb3 Bf1 Ng5 Bc6+ Kc8 Qh2 Nh7 Bd5 Bb7 Bc2 Ba8 b1B Rb2 Bf7 Ra2 Bb2 Bc1 Bh5 Rd2 Nb4 Ra7 Na6 Re7 Rc3 Rb7 Be4 Rd7 Rd3 Rd6 Kf7 Rd7+ Kg6 g8Q+ Kh6 Rd6 Bd5 Qge6 Kg7 Rd7+ Kh8 Qf5 Be4 Qg6 Bb7+
n1N4Q/B2K1B2/1r2N3/bP1pQn2/1p2R1R1/kbr2qr1/3P1RrQ/1r3r1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 h5 e4 a5 g4 h3 c4 f3 g5 h4 e5 f2 g6 h2 g7 a4 e6 h3 e7 a3 e8Q a2 Bb2 Ne7+ Ke5 f5 g8Q f4 Qe2 f3 Bc1 Ra6 Qd3 Nf5 Qee6 Rb6 Qe2 Na6 Na3 Nc7 Bb2 Na8 Re1 a1R Qh6 Rh7 Qh8 Rb1 Qe4 Bb7 Ne2 Bd5 Nd4 Be7 Rg1 h1B Rg4 h2 Qef4 Qc8 Re4 Rg7 Bh3 f1R Qfg5 Rc6 Ne6+ Kb6 c5+ Ka5 Qgh5 Ka4 Nc4 f2 Nd6 Rfc1 Bd4 Qf8 Nc8 Rb6 c6 f1R c7 Bb3 Be3 d5 Qe8 Rb7 Ba7 Bd8 Qhh5 Ka3 Q5h7 Ne7 Kd6 Qf3 Kd7 Rb6 Qeh5 Rc3 Qe5 Bg2 Qhh5 h1R Qh2 Rhg1 Q5e5 Rg6 Ref4 Qg3 Rf2 Bh1 Re4 Qe3 Bf5 Rg7 Bg6 Rg2 Bf7 Nf5 Ref4 Ne7 Nd6 Qf3 c8R R7g3 Rg4 Rb8 Rcc4 Nf5 Nc8 Ba5 Rce4 Rb6
r2NQ1R1/1bnrN2B/5rnR/p1B2Q2/pqr3rQ/kPb3bP/8/3K1R1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 e4 Kd7 d4 Kd6 h3 g5 b3 a5 Bd2 c5 Bc4 f5 Qc2 g3 Qb2 g4 Bb4 g2 Ba6 g3 Bc4 f3 Ba3 f2+ Kd2 f1R Bb4 f4 Nf3 g1R Nc3 g2 Qb1 Qb6 Ne5 f3 Bd3 f2 Nc6 Ne7 Nd8 Bg7 Ba3 Rh7 e5+ Kc7 e6 Kd6 Rh2 Ng6 e7 Bb7 e8Q Qb4 Bf5 c4 Bc2 Kc7 d6+ Kb6 d5 Kc5 d7 Na6 d6 Nc7 Ke2 Be5 Nd5 c3 Ne7 Bg3 Be4 Rh1 Qc2 g1R Rg2 Rd1 Rc1 Rd3 Rf1 Rd4 Bf5 Rc4 Kd1 Bh2 Rg4 Bg3 Rh4 Kb5 Qd3 Rg2 Rh6 c2+ Ke2 c1B Kd1 Bb2 Be4 Qc3 Bc5 Qb4 Qf3 Bc3 Qff8 Nh4 Bg6 Rg7 Bh7 Ng6 Qf5 Rgg1 Ndc6 Rf7 d8R Rf6 d7 Rf7 Re1 f1R Rb8 Rf6 d8Q Rf3 Rf1 Rd3+ Kc1 Rd2 Qd4 Rd3 Qh4 Rd7 Nd8 Bge1 Kb1 Rgg4 Kc2 Bg3 Bd6+ Qc5 Kd1 Kb4 Rc8 Ka3 Rb8 Bd4 Rc8 Qb4 Bc5 Bde5+ Bd4 Qc3 Qf7 Bd5 Ne6 Bf2 Rg8 Bfg3 Bc5+ Qb4 Nd8 Bc3 Qe8 Bb7+
3Rb1nk/r5Rb/N2n3p/3BN1Q1/b2BPR1K/rbb1r3/PBb1Q1p1/3q4 w - - 0 1 illegal: No proof kernel
b3Q2K/qnNBbr2/n3N1kp/1n4P1/3r1B2/3nnp2/PQn3RB/5RQr w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 Kf3 c5 Ke4 f5+ Ke5 Kf7 e4 f3 d4 h6 g4 f4 g5 f2 d6 h3 d7 c4 d5 b3 d6 b4 Qf3 h2 Bh3 f1N Bd2 c3 Bg2 b2 Qd1 c2 Qg4 c1N Bh3 b3 Na3 b1N Nf3 b2 Nb5 Qb6 d8Q Na3 d7 b1N Nc7 Nf6 Rg1 h1R Nd4 f3 Nde6 Bb7 Bf4 Nc3 Rg2 Na6 Qb8 Rh7 d8B Ne8 Be7 Ra7 Bd6 Ba8 Bh2 Qg1 Qb2 Nd3+ Kf5 Rb7 Bdf4 Ncb5 e5 Nc2 Qg3 Qb6 Qf2 Rb8 Qg1 Qa7 Rb1 Rd8 Bg4 Nd2 Rf1 Nc4 Bh3 Rd4 Bg4 Ke7 Kg6 Ned6 Bh3 Rf7 Bg4 Rf6+ Kh7 Kf7 Kh8 Nb7 Nc5 Be7 Bd7 Bf8 e6+ Kg6 e7 Rf7 e8Q N4e3 N5e6 Be7
b3nnK1/4NpR1/1NB2P2/krr1rQ2/2q5/Ppb2r1R/b1rQ4/B1N2Q1r w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 c3 bxc3 Qd3 gxh4 Qd6 Nc6 Qd1 Nb8 e4 b5 Ke2 d5 Kf3 Kd7 Kg4 Kc6+ Kh5 Kb6 g4 c5 f4 h3 e6 c4 e7 b4 e8Q c2 e5 c3 f5 d4 g5 h2 g6 d3 e6 d2 a3 Ka5 e7 Qd5 g7 Qc4 Bb2 c1R Nh3 c2 Bd4 Nd7 Be5 Rb8 Nf4 Rb5 Ne2 Ngf6+ Kh6 b3 Rg1 h1B Nbc3 Ba8 Na4 Ba6 Qc8 Ne8 f6 Rg8 Kg5 h5 Kh6 h4 Kh7 h3 Nb6 h2 Bg2 B6b7 Qf1 d1R Bb2 Rd3 Bc6 Rf3 Rg6 Re1 Nc1 h1R+ Rh6 Ree3 Rh3 Ree5 Ra2 Ba6 Ba1 Rbc5 Nd3 c1R Rg2 Rc2 Nc1 Qa4 Rg6 Bd3 Qd8 Qc4 Qc8 Nd6 e8Q Bf5 Qe7 Ne8 Qd6 Rb5 Qd5 Bb4 Qd2 Rf8 g8N Bc3 Ne7 Rg8 Kh6 Nf8 Rg7 Be4 Qf5 Bd3 Rh7 Rg5 Rg7 Rec5 Qff4 Rge5 Qf5 Ne6 Kh7 Nf8+ Kh8 Rb2 Nd7 Bb1 Nb6 Ba2 Kg8 Rc2
6rr/Qq1pK2r/Rr4kP/3b1R1R/B3p1rr/2B1Q3/NbPN1nn1/4B2n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 a5 h4 g5 b4 e5 b6 e3 Kd3 a4 Kc4 e4 Kd5 e2 b5 e1N f5 a3 b7 a2 h5 g3 h6 g4 b6 d3 f6 d2 Rh2 g2 Na3 g3 Bb2 Na6 b8Q Ne7+ Kd6 Nc5 b7 Ncd3 Rh5 Bg7 Re5 Nf5+ Kd5 Qb6 Re7+ Kg6 f7 Rh7 f8B Nf2 Ne2 g1R Nb1 g2 Bc3 Ng3 Re5 Ngh1 Qc1 d1R+ Nd2 Qc7 Qa3 Rb1 Rf5 Rb6 Qba7 Bf6 b8R Ba6 Nc1 Qb7+ Kc5 Bc4 Re8 Bf7 Bb5 Rd8 Ree5 Rb8 Be7 Rbh8 Ba4 Bg7 Bh4 Bf6 Rb1 a1R Na2 Bg7 Rb5 Rb1 Ra5 R1b3 Bd4 Rh3 Qe3 Rh2 Bg3 Rh4 Ra6 Bf6 Rd5 Be5 Ba1 Bb2 Rh5 Rf1 Rde5 g1R Ref5 Rg4 Bh4 R1g2 Bg3 Rh2 Bh4 Ng2 Bg3 Rg1 Bh4 Bc1 Bc3 Bb2 Bg3 Nd1 Be1 Rhh4 Bc6 Ndf2 Kd6 Rb4 Ba4 Rb6+ Ke7 Rg5 Nf3 Nf4 Ba5 R1g4 Rd5 Ng2 Rd6+ Kf5 Bac3 Rh3 Nd2 Rh2 Rh4 Rgg8 Rd5+ Kg6 Rhh5 Rhh4 Rdf5 Bd5+
1Q2Q1Nr/Rnp1r1Q1/n2n1R2/b1k2b1K/2B1n2n/1r4Rn/P1P4p/3N1q1B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 f6 d5 Kf7 d6 Ke6 Bd2 Kd5 Bf4+ Kc6 dxe7 Ra3 e6 Ra8 Be5 fxe5 Ke2 b5 Kf3 d5 Kg4 h5+ Kg5 d4 g4 e4 f4 d3 f5 e3 f6 d2 e8Q+ Kc5 e7 b3 f7 e2 Nh3 e1N Bc4 b2 Na3 b1N Be6 b4 Rf1 b3 Rf3 b2 Rf2 Nf3+ Kg6 Na6 g5 Nc3 Ng1 b1R Qe1 d1N Rf1 h3 Qf2+ Ne3 Ne2 h2 Bc4 h1N Qg1 h4 Ng3 h3 Nf5 h2 Nh6 Nh4+ Kh5 Nb5 g6 Qd3 g7 Nd6 Rf6 Bf5 Qb8 Bh7 e8Q Nf2 Nb5 Qf1 Nc3 Nb7 Nd1 Nef5 Bd5 Rb5 Bh1 Rb3 Qg4 Bd6 f8R Nh3 Rb1 Bf4 Rg6 Bg3 Rff6 Be1 Qg2 Bb4 Rg3 Ba5 Rb2 Nfd6 Rb1 Ne7 g8B Nef5 Bc4 Ne4 Ng8 Nfd6 Qe2 Nb4 Qg4 Ra6 Rb2 Rb6 Qgd7 Na6 Qg7 Re3 Rb1 Rbb3 Rb2 Nc3 Rb1 Re7 Rb2 Nce4 Rb1 Re3 Rb3 Rc3 Ra3 Rb3 Qeg6 Bc3 Re6 Nb4 Ra7 Na6 Rf6 Ba5 Qge8 Bf5+
2N5/R3n3/rq1Q3n/2N1R1Qb/B1Pr1NpB/8/1nbbp1bP/1k2nBKb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 a4 Kf7 c4 Kf6 f4 g5 Kf2 b5 a5 d5 a6 e5 a7 g3+ Kg2 d3 Qf3 e4 Qe2 b3 Ra3 d4 Qe3 b4 Qf3 b2 Be2 d2 Nc3 b1B Bb2 d1B Ra6+ Qb6 Kf1 b3 Qf2 g2+ Ke1 e3 Ra2 d3 Qf1 Bh6 Nh3 g1N Qg2 d2+ Kf1 Nc6 Qg4 Nf3 Na4+ Nfe5 Ra1 Bbc2 Nc5 Bb7 Kg1 Nce7 Bf1 Bg2 Bc1 Rd8 a8B b2 Ra7 b1B Bc6 Nd3 Ba4 Ne1 Qh5 g4 Ba3 Bdf3 Qg5+ Kf7 f6 d1N f5 e2 Nf4 Rd4 Bc1 Nb2 Be3 Qa6 Bf2 Qb6 Bh4 Rh7 Ra5 Rg7 Rb5 Rg6 Ra5 Kf8 f7 Kg7 f8N Kf7 Qh5 Bg5 f6 Nh6 Nfd7 Ba8 Nh3 Bd2 Qg5 Bab7 Nf4 Bbc6 Nb8 Be8 Rb5 Bce4 Nc6 Bbc2 Na7 Ba8 Nh3 Baf3 Nc8 Bd5 Nb7 Ke6 f7 Rf6 f8Q Bh5 Qgg7 Kf5 Qg5+ Ke4 Nf4 Ke3 Qd8 Bdf3 Re5+ Bfe4 Qd6 Rg6 Ne6+ Kd3 Nf4+ Kc3 Bb5 Kb3 Nc5+ Ka2 Ba4 Kb1 Kf2 Bgf3 Rg1 Re6 Rg3 Bc6 Kg1 Bh1 Rb3 Bhg2 Rb5 Bh1 Ra5 Bcg2 Ra7 Qb5 Qb8 Ra6 Qd6 Qb6
4KbR1/2b4n/Q1b4r/1NpnB3/3n1pnR/NQr1q2P/1N2BPbk/2n2R2 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 exd4 a4 d5 axb5 dxc4 Qd2 h5 Qd1 hxg4 Kd2 Kd7 e4 Ke6 b4 f5 e5 g5 b6 c5 b5 a5 b7 a4 b6 c3+ Kd3 c2 Kc4 a3 Kb5 d3 Nc3 g3 Bg2 a2 Bf3 g4 Bg5 c1N Bc6 f4 Qa4 Kf5 e6 d2 e7 d1B e8R g2 Re4 g3 Be8 Kg4 Re3 Na6 Kc6 Nc7 b8Q Nh6 b7 Qd2 Qa6 Nd5 Bf6 Bf3 Nge2 Kh3 Nd4 g1N Ndb5 g2 Nd1 Ng4 Nb2 Nge2 Be5 g1N Na3 Rh6+ Bg6 Be6 Bh5 Bg8+ Kd7 Nd4 Re4 Bg2 Ke8 Ngf3 Ree1 Be6 Ref1 Ng5 Rb1 a1B Rfg1 Nge3 Be2 Ng4 Rf1 Qe3 Rfg1 Nd3 Rbf1 Bc8 Qbd6 Nh7 b8N Bb7 Qe6 Ra7 Nc6 Nc1 Qg8 Ba8 Qf7 Rb7 Na7 Rb3 Qfb7 Rc3 Qb3 Be4 N7b5 Bc6+ Kd8 Ngf6 Rg5 Ng4 Rg8 Kg2 h3 Bf3 Rhg1+ Kh2 Rg3 Ngf6 R3g5 Ng4 Rh5 Bg2 Rh4 Rd3 Na4 Bc3 Nb2 Bb4 Qb6 Rc3 Qa6 Ba5+ Nc7 Bb7 Ke8 Ba8 Ncb5 Bc7 Qba4 Bb7 Qb3 Bc6+
k6q/3b1brR/b5NB/P2nbpQ1/1n2R1Pn/3Q2RB/1KNnp3/1B1br3 w - - 0 1 illegal: No proof kernel
1QR1Kb2/Nn2Q3/1N1n1Rb1/p1B1brk1/2b5/r2P1P2/qqN2pB1/2bb1R2 w - - 0 1 illegal: No proof kernel
1b1k2B1/3q2R1/2nrn2P/1QN2n2/5b2/K1pp2rN/QR1Nn1Pb/B2bbR2 w - - 0 1 illegal: No proof kernel
B2Qb1Nr/2R3KB/n4P1p/n3b3/r1QPpr2/rrq5/2b2bk1/2NQR1B1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 c5 f4 e5+ Kh5 a5 d4 h6 Kg6 h3 g4 h2 b4 c3 g5 c2 f5 c4 b6 c3 b5 a4 b7 a3 b6 e3 f6 Ke4 Ba6 a2 Nh3 e2 Bb5 Kf3 Ba3 c1R Bd6 c2 Nd2+ Kg2 Re1 h1B Nb3 Na6 b8Q Rb1 b7 c1R Qc7 Bd7 b8Q Qc8 Qc4 Ne7+ Kf7 e4 g6 Nc6 g7 Na5 Bh2 Bd6 g8B Be8+ Kg7 Be5 Bc6 Rb2 Rb1 a1R Bh7 Ra3 Bg1 Rcc2 Nc1 Rbb3 Bb7 Rcc3 Qbc7 Rf3 Qd8 Rf4 Rb2 Qc5 Rc2 Qb4 Bd5 Qc3 Bb7 Rb8 Ba8 R8b4 Ng5 Rba4 Nf7 Kg3 Nd6 Bf3 Nc8 Kg2 Ne7 Bg4 Qcc8 Bgd7 Ng8 Bb5 Rb2 Bd3 Qc4 Bc2 Rb1 Rb8 Rb5 Rb6 Rc5 Rbb3 Rf1 e1B Rc7 Bg3 Re1 Bf2
n3K1r1/b1b3RR/n4p1r/1Q2bP1r/1BN3p1/QN2q3/N3Q1Pr/1b1rB2k w - - 0 1 illegal: No possible last move, all moves rejected
QQ3b2/K1qk4/n1RP4/B2Rb1nN/2r1rnPN/bbpB3R/Qb3p2/7n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 h5 b4 a5 g4 c5 e4 f5 d4 a3 d5 a4 d6 f3 Ke3 c3 b5 f2 g6 h4 e5 a2 e6 h3 g7 c4 Kd4 h2 Kc5 c2 b6 f4 e7 f3 b7 a3 Bd3 f1N Bh7 f2 Ne2 Ra4 Ng1 Kd7 e8R Ne3 Bd3 Ng2 Nf3 Nf4 Re5 Nf6 g8Q Nh7 Bd2 c1B Nc3 Ng5 Qb3 Qc7+ Kb5 Na6 b8Q Bb7 Ne2 Bd5 Ng3 Bf7 Rb1 a1B Ba5 a2 Rd5 Bab2 Nh4 a1B Qa2 Rh6 Nh5 Re6 Qh8 Re4 Qg8 Ba3 Rb2 Be6 Rc2 Be5 Qh8 Bcb2 Rcc1 Qc8 Kb6 Qc6+ Ka7 c3 Ra1 Rac4 Qa8 Bh6 Qhb8 Bf8 Rab1 Bc1 Rb4 Bcb2 Rb6 Qc8 Rc6 Bg8 Rg1 h1N Rg3 Qc7+ Qbb7 Ba1 Rd4 Rc5 Rh3 Bb3 Rd5 Rcc4 Qb8 B1b2 Qa8 Ke6 Qb8 Qc8 Q7a8 Kd7 Re3 Qd8 Rh3 Qc7+
nb3q1r/1RNB1bQB/rR1pR3/k4rb1/n6Q/2rbP2B/p2PK3/6rN w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 b4 exf4 a4 bxa4 b5 c6 Ba3 c5 Bb4 cxb4 c4 f5 g4 a5 e3 h5 c5 f3 b6 f2+ Ke2 f4 b7 h4 c6 a3 g6 f3+ Kd3 a4 g5 a2 c7 a3 g7 b3 g6 h3 Rh2 b2 Rh1 h2 Qa4 Na6 b8Q Be7 Qh4 Nf6 g8B Nc5+ Kd4 Nd5 g7 Bg5 Qb7 Na4 Kd3 Ndb6 Qf4 Ra6 Bh7 Na8 Bg2 f1B+ Ne2 f2 Rg1 h1R Nc3 b1R g8B Rb3 Rb1 a1B Be6 a2 Qh4 d6 Beh3 Be6 c8R Bf7 Rb8 Qc8 Bd5 Kd8 Bc6 Bb2 Rg2 Rg1 Bcd7 Ba3 Qa7 Bc5 Rb7 Bb6 Rg4 Bc7 Re4 Bb8 Re6 Ra3 Qad4 Rb3 Rb6 Kc7 Qg7 Qf8 Rb2 Bg2 Rb1 f1R Ng3 Rf5 Ke2 Be4 Nh1 Bc2 Rb4 Be4 Nb5+ Kb6 Nc7+ Ka5 Rb7 Rc3 R1b6 Bd3#
5K1k/1QRrrRnB/2rpbb2/Q6P/q3N2B/2n2n2/P2Rr1pQ/nrN5 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 e5 Kc4 b5+ Kd5 g5 c4 Kg7 h4 b3 f4 d3 h5 d2 c5 b2 c6 g3 c7 g2 Nh3 g1N Bg2 e4 Qe1 d1R+ Nd2 b1N Ke5 e3 Bb2 b4 Qe2 g4 Ba3 g3 Nf2 b3 Nd3 b2 Be7 Nc3 Kd6 b1R Be4 Nf3 Qh2 e2 Nc1 Rh7 f6+ Kh8 f5 e1R f7 g2 f6 Bg7 f8R Qe8 f7 Na6 Bh4 Nb4 Bf5 Bd4 Ne4 Re2 Rg1 Rd3 Rd1 Nc2 Rd2 Rde3 Bg6 Bf6 Bf5 Rh6 Bg6 Ra7 Bh7 Rbb7 Rb1 Na1 Rb4 Rg6 Rc4 Rb1 Rc6 Bb7 Rc4 Bd5 c8Q Be6 Rc7 Rh6 Qb7 Qa8 Qa6 Rab7 Qb5 Qa4 Qa5 Rg6 Rb8 Rh6 f8Q Ra7 Rb6 Rg6 Qe7 Nh6 Rbb7 Nf5+ Kc5 Ng7 Kd6 Rh6 Qf7 Bd4 Ke7 Bf6+ Kf8 Rd3 Qb5 Rd6 Qa6 Rc6 Qa5 d6 Qd7 Rg6 Qc8 Rg5 Rf7 Re5 Rbe7 Rd7 Qb7 Bf5 Re8 Bh3 Rc8 Ree7 Rc7 Be6
1r2r2r/1R2br2/1qp2Qq1/1BB3pN/1nPn2rr/B1K1k1NP/2Q1b3/2R4R w - - 0 1 legal: proof: f4 b5 e4 h5 g4 hxg4 a4 d6 e5 dxe5 axb5 exf4 Ke2 f3+ Kf2 Qd4+ Ke1 Qd8 c4 Kd7 d4 Ke6 Kd2 Kf5 b4 Kf4 h3 g5 d5 f5 d6 a5 d7 e5 b6 f2 b7 g3 b5 e4 b6 c6 Ra3 g2 Qh5 a4 Be2 f1R Nf3 g1R Qe8 e3+ Kc2 Ne7 Nfd2 Na6 b8R Rg4 b7 Nb4+ Kc3 Qb6 Rb3 a3 d8Q a2 Bf3 e2 Ba3 e1R Ne4 Ke3 Nf6 f4 Bd1 f3 Qg6 f2 Nh5 Nf5 Nd2 Nd4 Rb1 Be7 Qc2 a1R Ne4 Rh4 Neg3 Bg4 Qf8 Be2 Rc1 Rg1 Qf6 f1Q Rg8 Qf5 b8B Qh7 Rg7 Qg6 Bd6 Rab8 Bc5 Rb1 Rh7 Ref1 Rg7 Rbe8 Rf7 Bf8 Rb7 Be7 Qa2 Rff4 Ba4 Rfg4 Qc2 Rf1 Bb5 Rb2 Qg7 Rf7 Qf6 Ra2 Bb2 Raa8 Ba3 Rab8
2kn1b1n/1NnN4/p2Q2p1/Q2q4/1qP1b3/1B2B2n/1KRP3n/n2QNRrr w - - 0 1 illegal: No proof kernel
2QNn2N/3n1bnp/2Bk2r1/2b1Rb1b/PNQB2P1/RB5p/5q2/Kb2r2n w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Ke7 d4 c5 Kd2 b5 Kc2 f5 Kb2 c4 e4 c3+ Ka2 f3 g4 f4 e5 b3+ Ka3 c2 Kb2 b4 e6 f2 Ne2 f3 Bh6 c1N Nd2 h3 Be3 Kd6 e7 Bf5 e8B Nd7 Ng3 Qf6 Nb1 Ra6 Bc4 f1B Qd3 f2 Ra3 Ne2 Nh5 Ng3 Nf4 Nh5 Ka1 Ng7 Nc3 Rc6 Ng6 b2+ Kb1 Qh4 Na2 Ngf6 Bb3 Be2 Re1 f1N Qe4 Qf2 Qd3 Rg8 Nh8 Ng3 Qe4 Bb5 Qd3 Be6 Qc4 Bf7 Re2 Nh1 Re1 Qf4 Bg1 Qf2 Re5 Nc5 Bd7 Rb6 Bc6 Ncd7 Nc1 Be7 Nd3 Nfe8 Ka2 b1B+ Ka1 Qg3 Bf2 Rf8 Be3 Bh5 Bg1 Rf1 Be3 Re1 Bg1 Kc7 Be3 Bc5 d6+ Kb8 d5 Qf2 Bd4 Ra6 Bd1 b3 Nb4 Bd3 Ba8 Bf5 Bc6 Nb6 d7 Kc7 d8N b2+ Ka2 b1B+ Ka1 Nd7 Bb3 Rb6 d6+ Kc8 Qc2 Bc4 Qd3 Bcf7 Qc4 Nb8 d7+ Kc7 Ne6+ Kd6 d8Q+ Nd7 Qc8 Ra6 Bf3 Ke7 Nd8+ Re6 Bb7 Kd6 Bc6 Rg6
7N/K2Q3p/1pr3bn/k1r2R2/b4rQB/PQ1nrRr1/1PN4b/B1bB1q2 w - - 0 1 illegal: Other
2R2Qr1/1Q1r2p1/r3P1N1/nB3K2/p1n1r1PR/bq1n4/2n1R2N/kb1B1n1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Be3 cxd4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kd3 Ke5 c4 f5 b4 a5 h4 a4 e4 g2 h5 f3 b6 f2 c5 f4 h6 f3 b7 Qb6 b5 Ra6 h7 Nf6 c6 Nfd7 c7 Nc6 b8Q Nc5+ Kd2 d3 Ke3 d2 Bd3 Na5 Nh3 g1R Nf4 Re1+ Be2 Bf5 Qb7 Rg8 h8Q f1R c8B f2 Kf3 Kd4 e5 Nd3 e6 Ba3 Bd7 Bg6 Qc1 d1N Ra2 Ne3 Rh4 Nc2 Nd2 Kc3 Bd1 d4 Qb1 Bf5 Ng6 Re4 Be8 Rh1 Nf1 Rg1 Nh2 f1N Qc1 Rg2 Qf4 Rd2 Qd6 Kb3 Qf8 Kc3 Qa7 Qb7 b6 Qd5 b7 Qb3 Be2 Rd1 b8R Rd2 Qb7 Rd1 Ra1 Kb2 Ra2+ Kb1 Rb2+ Ka1 Rc8 Nde1+ Kf2 Nb4 Rh7 d3 Bb5 d2 Nf3 Rd4 Rh2 Bb1 Rh1 Nh2 Kg3 Re4 Kh4 Nf1 Kg5 Nd5 Qh5 Nb6 Kf5 Nbc4 Qh6 Rc1 Qh2 d1N Qg1 Rc2 Rh4 Nf2 Bd1 Rd2 Nh2 Rd7 Qh1 Nfd3 Re2 Nc2
2NQ4/2Rr1Pqn/rr1brq2/Q3Qr1N/1pKB4/3RrP1n/p1B4N/4kb2 w - - 0 1 illegal: No proof kernel
NnQB2qk/2b1P2N/4Rr1R/2KBn2b/np1R3N/n2bp3/n2P3r/3Q3b w - - 0 1 illegal: No proof kernel
QbR3Q1/3NpRq1/2Pr1P2/5B2/bB1rr3/1r1k1bbB/K3p1r1/nR1Nn3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 h5 Kc2 a4 Kb2 d3 b6 a3+ Ka2 d2 f5 Ke5 g5 Kd4 g6 e3 c5 h3 b7 e2 f6 h4 g7 h2 b5 h3 b6 Rh4 Bb2+ Kd3 Nc3 d4 Qc1 d1R Na4 Nd7 b8R Ne5 b7 Nf3 Qh6 Ne1 Rb1 Re4 Kb3 a2 Qf4 a1B Qh4 Bd7 Bc3 Nh6 g8B Nf5 Qh8 Ne3 Bh7 N3c2 Ba5 Bh6 Qg7 Bf4 Qh8 Bg3 Bc3 Qf8 Nb6 Qg7 Nc4 Ba4+ Ka2 Rd2 Rc8 Rb8 c6 Bb2 Na5 Na1 Nf3 Rd1 Rg1 h1B Qg8 h2 Bh3 Bc1 Bg6 Bcf4 Nc4 Bg2 Bd2 h1R Ne3 Rh2 Bgf5 Bh1 Bb4 Be5 Ng5 Bf3 Nh7 Rg2 Nf8 Rc1 Bc5 Rc4 Nd1 Rb4 Nd7 Rb3 Re8 Rd8 b8Q Bc7 Qa8 Bb8 Nb6 Rd6 Nd7 Kd2 Ba3 d3 Bb4+ Kc2 Rc8 d2 Nb2 d1R Rh1 R1d4 Nd1 Kd3 Rg1 Rf2 Rg2 Bf4 Rg4 Bg3 Rh4 Qg5 Rh7 Rg2 Rf7 Qg7
1r2Q1b1/1rNP1K2/1b2rB2/nbQ1B2R/Q1B4p/1N1Ppr1b/4n1R1/3q1b1k w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 g4+ Kf4 a4 h5 a5 c5+ Kc4 e5 d6 b5+ Kd5 h3 g5 b3 g6 b4 d7 c4 Ke6 b2 a6 h4 a7 c3 g7 h2 f3 Kg3 f4 e3 f5 e2 Qb3 e1R Kf7 e4 Ra2 Nc6 Qd1 c2 Ra6 b3 Bd3 Kg2 Be2 Bc5 Kg6 Na5 Nf3 Nf6 g8Q Nh5 Bc4 Rh7 Qe8 Bb6 Ng5 Ng3 Ne6 Ne2 Nc7 Rb8 a8Q Rf1 Qd5 Rf3 Qc6 e3 Qc5 Rf7 Rf1 h1B Rg1+ Kh2 Rg5 Bg2 Rh5 Bf1 Ra7 Rh7 Rb7 Rh6+ Kf7 Re6 Ra7 Kh1 Ra8 Ba6 f6 Bb5 Ra7 Qc8 Ra6 Nb7 Ra2 Na5 Kf8 Qb7 f7 Qd5 Kg8 Rb7 f8B Qd6 Be7 Rb8 Na3 b1B Bb2 c1R Be5 b2 B7f6 Bf5 Qa4 b1B Nc2 B5h3 Nd4 Bh7+ Kf7 Rb1 Nb3 Qd3 Rb2 Qc2 d3 Qd1 Rd2 Nc1 Qd8 Ba6 Qd5 Bd4 Rg2 Ne2 Na1 R1b7 Qe8 Bb6 Nb3 Bb5 Qc5 Bg8+
1nK2R1Q/2P2r2/6N1/4bRN1/bnq1p1nn/r1B2Bk1/PBQ1b2p/b2R1b2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 c4 Ke6 g4 Ke5 f3 Kf4 g6 e5 g5 b5 g7 d5 c5 h5 c6 b3 g6 b2 c7 b4 Bh3 b3 Qe1 d3 Kc3+ e3 Bd7 h4 Nd2 b1N+ Kb2 d4 Bg4 e4 Be6 e2 Bh3 Rh7 Bg4 h3 Qd1 e1B Qc2 h2 Nh3+ Kg3 f4 Na3 f5 Ba6 f6 Nh6 g8Q Bg7 f7 Be5 f8B Qd5 g7 Qc4 Nf3 d2 Rf1 d1B Nf4 Be2 Bb4 d3+ Bc3 d2 Qh8 d1B g8R Rf7 Ng6 Ra7 Bh5 Ng4 Rf8 Bf2 Ng5 Bfd4 Rf5 Ra8 Qd2 Nc2 Rb1 Nb4 Ka3 b2 Qc2 Bf1 Ka4 Bfe2 Ra1 b1N Ka5 Nd2 B1b2 Nf3 Rb1 Nh4 Rc1 Nh6 Bf3 Ng4 Ra1 Bf1 Rb1 Bde2 Rd1 Ra7 Bd2 Bc3 Kb6 Bb5 Be1+ Nf2 Bd2 Ra3 Kb7 Ba4 Kc8 Ng4 Bbc1 Ba1 Bc3 Be8 B1b2 Ba4
1K4Rr/rRpB3Q/N6n/2Pb1Q1n/1rp5/rB1rNR2/2qB1Pr1/kq5b w - - 0 1 illegal: No proof kernel
1n1b1rr1/p1Kn2Q1/P3N1q1/1r1R2N1/2P1bNB1/n1Q3r1/npQR4/1rB1k3 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 Rh2 exf4 Rh3 d5 Rh1 dxc4 Na3 c3 Nb1 c4 bxc4 Qa5 Ba3 Qc7 Bc1 Qd8 Kf2 Kd7 Kf3 Ke6 Ke4 f5+ Kf3 Ke5 e4 Kd4 g4 h5 a4 b5 a5 b4 g5 c2 d3 b3 a6 b2 e5 h3 e6 h4 e7 h2 e8N h3 g6 Nf6 g7 Rg8 Nc7 Qe8 Be2 Be7 Ra3 Bb7+ Nd5 Bd8 Rb3 Nfd7 Na3 Qg6 Rb5 Rf8 g8Q Bc6 Bd2 c1N Qc2 Na2 Bc1 Bb7 Nb1 Bc6 Nc3 Bb7 Na4 Bc6 Kf2 f3 Nf4 Be4 Qh7 Rg8 Nc5 Rf8 Qe7 Rg8 Qg5 Rg7 Kg3 f2 Bh5 f1R Bg4 Rf2 Qe7 Rg8 Qf7 Rd2 Nce6+ Ke3 Nf3 Rf8 Rf1 h1R d4 h2 Rf2 Rg1+ Rg2 h1R d5 Rh5 d6 Rg5 Rd5 Rh5 Nh3 f4+ Kh2 Rf1 Nfg5 f3 Kg3 f2 Qg7 Rg1 Nhf4 Rhh1 Bf5 f1N+ Kg4 Nh2+ Kg3 Nf3 Bh3 Nd4 Bg4 Nc5 d7 Nb5 Qe7 Na3 Qg7 Bb6 d8Q Ncd7 Qdf6 Bd8 Nd3 Rh5 Qfc3 Re1 Rf2 Rg8 Rf3+ Ke2 Kf4 Rh3 Rg3+ Kf1 Rg2 Rg3 Re2 Rdd1 Rd2 Ree3 Nf2 Ke1 Nfh3 Nf8 Ke5 Nfd7+ Kd6 Rd3 Qcd4 Rb3 Qdc3 Rb5 Nf4 Bf6 Nc7 Nc6 Nce6 Raf8 Kc7 Ncb8 Re2+ Kf1 Bd2 Rb1 Bc1 Be7 Red2 Ke1 Qa5 Bf6 Qac3 Bd8+
k4Nqn/5b2/4r1b1/2Rr1B1r/KQ2BRpN/2Pn2PQ/1R2r1p1/b1n1nQ2 w - - 0 1 illegal: No extended proof kernel
2bB1n2/5q2/B1R1rr1Q/NN1k3B/R4P2/pK3b1P/rpnn3Q/1Q3rbb w - - 0 1 illegal: No proof kernel
q1n5/1rb1b3/N1nnb3/k4N2/1r1RPbB1/2BK1pB1/n1PpQ3/1Rr1R1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 f5 e4 d5 h4 Kd7 b6 Kc6 b7 Kb6 h5 g5 b5 g3 h6 f3 h7 f4 Ra3 a4 Ra1 d3 Na3 g4 Rb1 d4 Rh6+ Ka5 b6 f2 Qe1 f3 Bh3 f1N+ Kd1+ Nd2 Qf2 g2 Bb2 g3 Bf5 Nc4 Nh3 g1R+ Qf1 g2 Nf2 Ne7 Rh3 Nbc6 b8R Be6 b7 Ra7 Ba1 Nd6 Kd2 Nec8 Qe1 Be7 Nb5 a3 Nc7 a2 Qe2 Rc1 Ng4 g1B Rh1 Bh2 Na6 Bf4+ Ne3 Rg8 Bb2 a1B h8Q Rg5 Bh3 Rb5 Re1 Rb4 Bc3 Qe8 Ra8 Qf8 b8B Rb7 Bf5 Bb2 Qh3 Ba3 Qh1 Bd8 Bg4 Bc7 Qg1 Qe8 Rd1 Qh8 Ke1 d2+ Kf2 d3 Nf5 Qg8 Rf1 d1N+ Ke1 Bh2 Kd2 Qd8 Re1 Qh8 Ba1 Nc3 Ke3 d2 Kd3 Na2 Bc3 Bb6 Bc7 Bf4 Rb8 N8e7 Rd8 Nec8 Rd7 Qg8 Bd8 Bc7 Bh4 N8e7 Bf2 Qa8 Bg3 Nec8 Bd4 R4b6 Ba1 Bc5 Bc3+ Rb4 Rd8 Nb5 Rd7 Be7 Rd4 Nbd6
3kn3/1K3q2/r2Nn1Q1/1b2b1bp/NQrrP1R1/3B1r2/1pR4P/2nBnRN1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 a4 f5 Bd2 fxg4 axb5 exd4 b6 Qg5 b5 Qd8 Bb4 cxb4 Kd2 h5 Kd3 a5 Ke4 g5 Kd5 a4 c4 b3 f4 d3 e4 g3 c5 d2 c6 a3 c7 g2 f5 g4 b7 g3 b6 a2 f6 Bh6 Nf3 g1N Kc5 d5 Ba6 g2 Bb5+ Bd7 c8B d4 Bc4 d3 Na3 Qc7+ Kd5 Ra6 f7+ Kd8 f8N Ne2 Rg1 Nc1 Rb1 a1B Nb5 Bg5 Nd6 Nc6 b8R Nd4 b7 Bb5 Nd7 Ne6 Nb6 Be5 Na4 b2 Qe1 d1R Qg3 d2 Bd3 Rh7 Rf1 Rh6 Ng1 Rf6 Rf4 Re1 Rg4 d1R Ra8 Re2 b8Q Rf3 Ra7 Qf7 Rc7 Rc2 Rc5 Be8 Qb4 Bb5 Rc3 Nd4+ Kc5 Nf6 Be6 Rdd2 Bb3 Ne8 Rc4 Rc3 Bd1 Ne6+ Kd5 Ra3 Rc2 Rc3 Qf4 Rc4 Qf5 Ra5 Qg6 Ra6 Nh3 g1N Ra1 Nge2 Ng1 N2d4 B1e2 Na2 Rf1 Nc1 Bd1 Re3 B3e2 Nf3+ Bd3 Rg2 B3e2 Ne1 Nc8 Rf3 Nd6 Rc8 Bc4 N6c7+ Kc5 Rd2 Bce2 Rd4 Bd3 Raa8 Kb6 Ra6+ Kb7 Ne6+ Rc7 Qf5 Rc3 Rcc4 Rc2 Qf7+
3k2qn/1r2bbB1/2r2rQN/Rp4QP/1P5p/2nNr1n1/B2n2Bb/2QK2R1 w - - 0 1 illegal: No proof kernel
RB2nbQ1/b2n3N/1rqr1n2/1pP1pP2/Q1r5/1B1K3k/b1R3n1/R1N2B1r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 c4 Kf6 h4 d5 a4 g5 f4 e5 h5 b5 h6 d3+ Kd2 d4 h7 b3 a5 b2 a6 g3 a7 g2 Rh2 g4 Rh3 g3 Ne2 g1B Nbc3 b1N+ Ke1 g2 Ra4 Be6 Rh2 Nd2 Nb1 Qe8 Qb3 Nd7 Ra1 Rb8 a8B Rb6 Nbc3 Ne4 Be3 Nd6 Nc1 d2+ Ke2 d1N Bd5 d3+ Kd2 Qc8 Qa4 Qc6 Bc5 Ne8 Bd6 Bf7 Bb8 Ne3 Be6 Bf2 Bd5 g1R Ne4+ Ke7 Nf6 Rh1 Kc3 d2 Kd3 Bg1 Be6 d1R+ Rd2 Ng2 Bd5 Re1 Rc2 Re4 Be6 Ra6 Bd5 Ba7 c5 Rb6 Bb3 Rc4 Ne2 Nh6 Nc1 Rg8 h8Q Rg6 Nh7 Ng4 f6+ Ke6 Qg7 Kf5 Qg8 Bd5 f7 Rd6 Rca2 Ngf6 Rc2 Bg7 f8R Kg4 f5 Kh3 Rd2 Nc7 Rc8 Nce8 Rc2 Bh6 Bc7 Bg7 Ra8 Bf8 Bb8 Re4 Ba2 Rb4 Kc3 Bf3 Bf7 Bd5 Kd3 Ba2+ Bd5 Re6 Bb3 Rc4 Kd2 Rd6+ Ke2 Nd5 Kd3 N5f6+
Rb2QN1k/B2Rbr2/1Bb2np1/rB6/1RQ2p1P/nP2NKnn/3r3r/2q5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 c4 d5 e4 f5 b3 Kf7 c5 d3 h3 g6 e5 Kg7 c6 g3+ Kf3 a4 b6 d4 c7 a3 e6 g2 e7 d2 e8Q a2 b7 d3 Qe6 Ra5 Qb6 Bd7 c8R Be7 Rh2 Na6 b8B Nb4 Bc7 Nc2 Ne2 g1N+ Kf2 f3 Nbc3 f4 Rb8 Na3 Nd4 Nf6 Qb5 Bc6 Qe1 d1R Nd5 d2 Qc4 Qc8 Ne3 Rh7 h4 Kh8 Rb4 Rf7 Bb6 Qc7 Rb1 a1B Ne6 Be5 Nf8 Qc8 Bb2 Bb8 B2d4 Rc1 Be2 d1R Ra1 Rd2 Ba7 Rb1 Bdb6 Rbb2 Rg2 Qc7 Rg5 Qc8 Rd5 Ra2 Rd7 Nh3+ Kf1 f2 Bd3 Nd5 Kg2 f1N+ Kf3 Ng3 Qc5 Bf6 Bb5 Be7 Qc4 Nf6+ Nd5 Bc5 Qe8 Rac2 Ra2 Be7 Ra1 Rh2 Ra2 Rcd2 Ra1 Nfe4 Ne3 Nf6+ Rd5 Bb7 Qf1 Qc1 Qc4 Nc2 Raa4 Bc6 Ra3 Bc7 Bb8 Ra8 Ra5 Na3 Ra7 Nge4 Rd8 Bcd6 Rad7 Ra5 B8a7 Be5 Ra8 Bb8 Qd3 Ng3+ Qd5 Nge4 Qc4 Ng3+
2B1r2n/4B3/2k1p1R1/1Nb1rpr1/4nPR1/2NbN2Q/Br1bnP1q/1Q1K1b2 w - - 0 1 legal: proof: g4 a5 b4 axb4 d4 c5 g5 cxd4 g6 Qc7 e3 Qf4 exf4 hxg6 Qd3 g5 Qd1 g4 h4 d5 a4 Kd7 c4 b5 c5 g5 h5 f5 h6 g3 a5 g4 a6 b3 a7 d3 h7 g2 Be3 e6 Nc3 d4 Qf3 b2 Ra6 b1R+ Kd2 g3 Qd1 b4 Rh4 b3 Nd5 b2 Nh3 g1N Rc6 g2 Qb3 Ne2 Nc7 g1B Qc3 Bh2 Qc1 Nh6 Ke1 d2+ Kd1 Rg8 h8Q Nf7 Rh7 Na6 Rh5 Bg3 Rb6 Rg5 Rb7 Bh4 Qh7 Kc6 Ng1 Nh8 Nd5 Bd7 Qh6 Re8 a8N Bd6 Bg2 Bc7 Bf1 Ba5 Nac7 Bb4 Nb5 Bc8 Kc2 d1R Rg7 Re1 Rg6 Ba5 Bg2 Bd2 Be4 Bd7 Bd3 Bc8 Bc4 Bd7 Ba2 d3+ Kb3 Rg2 Qh7 Be7 Rh4 Rg5 Rg4 Ng3 Nf6 Bc8 Qc2 Bc3 Na3 d2 Nd5 d1Q Ne2 Bd2 Nec3 Qf3 Qh4 Qh1 Qh3 Qh2 Bd4 Re5 Ne3 Kc7 c6 Nc5+ Kb4 Kd6 c7 Nce4 Kb3 Ba6 c8B Bf1 Bc5+ Kc6 Nab5 Ne2 Qc1 Bf8 Kc2 Bd6 Kd1 Bf8 Bb6 Bc5 Bc7 Ra1 Bd8 b1B Be7 Bd3 Bc4 Ra4 Qb1 Rb4 Ba2 Rb2
2K3qr/5bRN/3bpP2/p2r1B2/Q2n1n2/QN3r1R/3Pn1b1/1R1bBBkr w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 b4 c5 g4 a5 f3 h5 b6 h3 b5 h2 b7 c3 b6 c4 g5 e3 g6 h4 g7 c2 Be2 h3 Bf1 c3 Na3 e2 Nb5 e1R Nd4 Be6 Nb3 Nf6 g8B Bf7 Kf5 Nc6 b8Q Nh5 b7 Re3 f4 Rf3 Bb2 c1R Bh7 c2 Bf6 Ra6 Rb1 e6+ Kg5 Rb6 f5 Ke4 Qd6 Nd4 b8R Rb5 Rb7 Nf4 Qa3 Rd5 Be7 Qc8 Kf6 Qa8 Bc5 Bd6 Bb6 Qg8 Ba7 Be5+ Ke7 Bd6+ Kd7 Nb5 Bf2 Nd4 Ra1 Rb1 Be1 c1N Bg6 Nce2 Rc7 Re3 Nf3 Rc1 Ne5 Rf3 Ng4 Kd3 Nf6 Rb1 Rg1 h1B Nh7 h2 Rg3 Bg2 Rh3 h1B f6+ Rf5 Rc5 Re3 Rf3 Ke4 Rh3 Nc1 Bb5 Rc3 Bf2 Bf3 Rd5 Na2 Nc1 Bhg2 Qda4 Bh5 Nb3 Rh1 Rc1 Bd1 Rb1 Nc1 Bf1 Nce2 Be1 Rg3 Re5+ Kf3 Rc5 Rd5 Rc3+ Kg4 Be4 Re3 Rg3+ Kh4 Rg7+ Kh3 Bf5+ Kh2 Rd3 Kg1 Rc3 Re4 Rcg3 Re3 Rh3 Bc5+ Kc7 Rf3 Kb7 Bf8 Kc8 Bd6+
n6k/2B3bp/p3r2P/Kn1QN2n/b1RbQ1q1/1NB2PNQ/1R2n3/r2b2r1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 fxe4 h5 g6 h6 Bg7 Be2 Bf8 Bh5 gxh5 Kd2 Kf7 b4 e5 g4 d5 c4 d3 Kc3 d4+ Kb3 d2 Ka4 h4 b6 e3 b5 h3 b7 h2 g5 e4 c5 e2 b6 e1B f3 e3 c6 d3 c7 e2 Nc3 Nd7 b8Q Ngf6 b7 Kg8 g6 Nb6+ Ka5 Bd7 c8Q Bf2 g7 e1R Nce2 Nh5 Rb1 Qh4 Qf4 Bd4 b8B Ba4 Ng3 Qg4 Rb2 Re6 Qb3 d1N Bc7 d2 Qe4 Nc3 Qbd5 d1B Bd2 Nb5 Bc3 a6 Qcd7 Rb8 N1e2 Na8 Nc1 Rb7 Rg1 h1N Nb3 Rb6 Rgg2 Rc6 Rgc2 Rc5 Nf5 N1g3 Rc1 Ne2 Ng3 Rc6 Qc8 Kf7 g8N Bfg7 Ne7 Rg8 Ng6 Rc5 Qdb7 Rg5 Rcc2 Rd8 Ne5+ Kg8 Qd7 Kh8 Qbd5 Rb8 Qe7 Rgg6 Qh4 Rbb6 Qh3 Rbc6 Be1 Rg5 Rc4 Rc5 Rb4 Rc1 Rc4 Ra1 Bc3 Qf4 Nh1 Rg1 Ng3 Qg4
2B1n1k1/2n1Pbq1/R7/bNp1R3/rQN2NRr/2p2Q1n/1r1P2n1/2rKB1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 h5 e4 f5 g4 Kf7 b6 a5 g5 h3 e5 f3 b5 f2+ Ke2 a4 b7 h2 b6 a3 Qa4 a2 Bb2 h4 Qd1 f4 Bc1 h3 Na3 f3+ Ke3 Qd7 Qb3 Na6 b8Q Rh4 b7 Nf6 e6+ Kg8 g6 Ne8 g7 Bb4 Qd3 c5 Qe5 Ba5 b8N Nac7 Ne2 Qf7 e7 Be6 Bg2 f1R Qec3 f2 Bb2 Rc1 Bb7 Rc2 Rhe1 h1R Bc8 h2 Nf4 f1N+ Ke2 Ne3 Nb5 Ng2 Nc6 Rg1 Qdd4 h1N Ne5 Nf2 Qf3 Nh3 Kd1 Qf6 Qdc3 Bf7 Qb4 Qg5 Bd4 Qg6 Rb1 a1B Bf2 Bd4 Ra1 c3 Nc4 Rf1 Bg3 Bg1 Ra4 Rb8 Ra3 Rf2 Re5 Re2 Be1 Re4 Ra4 Qa6 Qb1 Qh6 Ne3 Bb6 Ra6 Ra4 Nc4 Ba5 Nbd6 Kh7 g8R Rbb4 Rg6 Qg7 Nb5 Kg8 Rg4 Rb3 Qb2 Rbb4 Qa3 Rbb2 Qb4 Rc1+
1R5b/N1np1r1k/2p2b1P/n3q2r/B2P1b1B/1K4bQ/Q3R2r/QR2rnN1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 a5 Bg2 axb4 Bf1 h5 c4 hxg4 Ba3 b5 Nc3 b3 Nb1 b4 Bb2 Ba6 Bc1 Bb5 cxb5 Ra6 Nh3 Ra4 Ng1 Ra8 h4 Kf7 f4 Kg6 a4 e5 d3 b2 Kd2 e3+ Kc2 b3+ Kc3 g3 b6 e4 b7 g2 f5+ Kh7 f6 g5 f7 g4 a5 e2 h5 e1R a6 e3 a7 g3 Ra3 e2 Bd2 Qe8 Rh2 Qe5+ Kc4 Bh6 f8Q Ne7 Qe8 Nec6 Ra4 Bf4 Rb4 Na6 Nc3 b1N b8Q b2 Nf3 g1B Qe6 g2 Nb5 Bd4 Qh3 g1B Kb3 Bge3 Qb7 Raf8 a8R Rf7 Rb8 Bc3 Qa7 Bed4 Ng1 Na5+ Kc2 c6 h6 Re8 Be3 Nc7 Bf2 Nd2 Qa1 b1R Bh4 Rg8 Qa8 Rg5 Na7 Rh5 R4b7 Rb5 Qa2 Rd5 Rb1 Rd6 Rf2 Rg6 Qa1 Rg2 Qa2 Rh2 Rg2 Rd1 Rf2 e1B Re2 Beg3 Qa1 Qg5 Qa2 Bh8 d4 Bb4 Qa1 Be7 Kb2 Bef6 Kc3 Nb7 Qa2 Qe5 Kb2 Nf3 Kb3 Re1 Qa1 Na6 Rf2 Qe8 Nb5 Nc7 Q8a2 Qe4 Na7 Qe5 Bb5 Na5+ Kc2 Re4 Ba4 Re1 Re2 Nd2 Kc3 Nf1 Kb4 Nb7 Kb3 Na5+
1B1n3k/2P1q1nn/1PRBnr2/1b2QR1p/1K1b3R/2p1rN1r/Q2N3b/5B1r w - - 0 1 illegal: No proof kernel
N1kN1B2/r1P1p1bR/3nnQ2/b2b4/1NpP1Q2/1Q3BK1/1r2qrR1/2n2r1b w - - 0 1 illegal: No proof kernel
Rqrr1nRb/1np5/K2n4/1N2Qr2/PQ2B2p/1bP1B1N1/2R2b2/1B2kbr1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b3 e5 b4 axb4 dxe5 f5 Ba3 fxe4 Bb2 Be7 Bc1 Bf8 Kd2 Ke7 g4 Ke6 f4 Kd5 a4 Kd4 e6 b5 e7 h5 e8R d5 g5 b3 g6 b4 g7 h3 f5 b2 f6 b3 f7 h2 Ba6 h4 Bb5 Nd7 Nh3 Ba6 Qg1+ e3+ Ke2 Ne7 g8B Nc6 Nd2 Kc3 Ra2 b1N Qd1 d4 Re5 b2 Re7 Na3 Ng1 b1R Bh7 Bg7 f8Q Nc4 Nf1 Nd6 Ng3 Qb8 Be4 Na5 Nf3 Nab7 Bbd3 Rb5 Re8 Rf5 Rg1 h1R Qe7 Rg8 Qe5 Nf8 Qf1 Rh8 Qh3 Rg8 Qg4 Bh8 Rg2 Rg1 Qgf4 Kb4 c3+ Kb3 Rc2 Bb5 Ng5 Ba6 Ne6 Bc4 Kf3 e2 Be3 e1B Ke2 Bf2 Rc8 Ra5 Qg4 Rd5 Rd8 Qa7 Ra8 Qb8 Nd8 Bb5 Nc6 Bc4 Kd2 Bb5 Na7 Ba6 Bf1 d3 Nb5 Rd4 Kc1 Kc4 Kb2 Rd5 Ka3 Rd4 Ne2 d2 Ng3+ Rd3 Qgf4 d1B Be2 Rfg5 Bh5 Rf5 Bg6 Rd2 Bc6+ Kd3 Kb4 Nd7 Bd5 Rc8 Ba2 Nf8 Bb1 Bf3 Bh7 Bd5 Qg4 Bb3 Qgf4 Nd8 Ka5 Rdd1 Qb4 Rd2 Nh1 Ke2 Rg8 Ke1 Ng3 Rd3 Na7 Bac4 Nb5 N8b7+ Ka6 Rd2 Bg6 Bf1 Bh7 Nf7 Bg6 Rdd8 Bh7 Nfd6 Bg6 Rf6 Be4 Rf5
2N5/P2r4/2r1Q2B/kbqQp3/1bb1B1Nn/Pn3bRN/3n2rp/rR1Q3K w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 gxh4 Bc4 c5 Bf1 cxd4 c4 b5 g4 d5 f4 Kd7 Kf2 Kc7 Kg2 e5 g5 h5 a3 e3 a6 Kb6 g6 e2 f5 e1R a7 h3+ Kh2 h4 c5+ Ka5 c6 b4 f6 d3 f7 d4 g7 b3 c7 b2 Qd2+ Bb4 f8Q Ne7 g8N Nbc6 Ne2 Qd6 Kg1 h2+ Kg2 h3+ Kg3 Ba6 c8Q Bb5 Ra2 Nf5+ Kf3 Nh4+ Kf2 Rh6 Nf4 Qc5 Qd1 d2 Nc3 b1N Ncd5 d3+ Ne3 Nd4 Qf7 Rc6 Bg2 Nb3 Qce6 Rf8 Rf1 h1B Ne7 h2 Nh3 Rg8 Be4 Bf3 Nc8 Rg7 Rh1 Re2+ Kf1 Reg2 Ng4 Rh7 Qg8 Rd7 Qd5 Bc4 Qge6 Bb5 Rc2 Bc4 Rc3 Bb5 Qc2 d1B Bh6 d2+ Qcd3 Nd4 Qe2 Bb3 Rd3 d1R+ Qe1 Rc1 Qd1 B3c4 Rg1 Rb2 Rh1 Nd2+ Kf2 Be2 Rg3 Ra1 Re1 Nhf3 Kg2 N4b3 Rg1 Nh4+ Kh1 Bf3+ R3g2 Rcc7 Qe2 Rc6 Rb1 Nf1 Qed1 Rf2 Ng1 Nfd2 Nh3 Bfe2 Rg3 Rg2 Bg5 Bf3 Bf4 Qf8 Bh6 Qc5
1nKR3b/p1q1r2R/1Bn1nbP1/1N4P1/n7/3BQBr1/Q1r1p3/2Rbk1bN w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 b4 Kg6 g4 d5 f4 h5 c4 e5 b5 e3 Kd3 e4+ Kc2 d3+ Kc3 d2 Kd4 h4 Ke5 h3 c5 d4 b6 h2 c6 e2 b7 e1B c7 d3 Ra3 e3 Qc2 d1R Qc4 d2 Qa2 Bc5 Nf3 Ne7 Bh3 Rg8 Rf1 h1N Bg2 Nf2 Ng1 Nh3 Nc3 Bh4 Nb5 Re1 Bf3 d1N Ne2 Nb2 Ng3 Re2 Rd3 a3 Rd7 Na4 Ke6 Nec6 Nh1 Rc2 Re1 e2 Be3 Rg7 Rc1 Re7+ Kd5 Bd4 Kd6 Bh8 Bd4 Bf2 Bb6 Bg1 f5+ Kg7 g6 Kf6 Bd4+ Kg5 Bb6 Kh4 g5 Nf4 f6 Ne6 f7 Bf6 Qb2 a2 f8Q a1B Qa2 Bh8 Qf5 Baf6 Qe4+ Kh3 Qe3 Kh2 Bg4 Kg2 Bf5 Rc3 Bd3 Rb3 Rc3 Kf1 Rc4 Na6 b8R Ke1 Rb7 Nab8 Rc3 Qe8 Rd8 Bd7 c8B Qf7 Rc4 Rb4 Rc5 Rg4 Rc7 Rg3 Bb7 Na6 Rc4 Rc8 Rh4 Nab8 Rh7 Ne5 Bf3 Be8 Rb7 Rc2 Rc7 Bc6 Rcc8 Bd5 Rc4 Nec6 Rc5 Bb3 Rc3 Rd2 Rc1+ Bd1 Rd7 Ned8 Kc7 Rc2 Kc8 Qc4 Rd6 Ne6 Rd7 Qf4 Rd8 Qc7+
qBRbb1K1/2N3rr/2k5/4QB2/1B2nPr1/1Prq1bQn/bNp1p3/2R3Q1 w - - 0 1 illegal: No possible last move, all moves rejected
r2qQN1B/2BN4/b1Q1r3/1Bqn1Q1b/1k2p2P/4P1q1/p1RR2bb/Kn3q2 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Qd3 f5 Bf1 f4 Qg3 fxg3 Kd2 e5 c4 Ke7 Kc2 Kd6 h4 Kc5 f4 g5 f5 d5 b3 a5 Kb2 d3 b6 g2 b7 d2 f6 d1B f7 a4 Rh3 a3+ Ka2 g3 Nf3 g1Q Nd4 g4 Nd2 e4 Rh2 g2 N2f3 g3 Bb2 Nf6 Ne6+ Kb4 c5 d4 c6 d3 c7 d2 Rc1 Rh6 Ne5 Na6 b8B Bd6 f8Q Nd5 Ka1 a2 Rc2 Nc3 Qf5 Qc5 e3 g1Q Bb5 g2 Nf8 Re6 Ned7 Nb1 Bh8 Bb7 c8Q Bh5 Qc6 d1B Bc7 Qf1 Rd2 g1Q Rc2 Bdf3 Rhd2 Ka3 b4 Qg3 Ba4 Bh1 b5 Nb4 b6 Nd5 Bb5 Ba6 b7 Bg2 b8Q Kb4 Qc8 Qg8 Qb8 Bh2 Qc8 Qg3 Qb8 Qdg5 Qe8 Qd8
3b1BKr/Q7/N1bN1qRb/1r1r4/3P4/pp1n1Rr1/2kPBqnb/Q3R1Q1 w - - 0 1 illegal: No proof kernel
1R3b1b/n1N2bnB/4nBR1/3nr1Pp/2PQ4/2QbqBNq/2p4K/N1kr4 w - - 0 1 illegal: No proof kernel
b1b1q2b/1RNn3n/6q1/2rr1p2/k3PBN1/3QBQ2/1PrRp1B1/r1bK1Q2 w - - 0 1 illegal: No possible last move
2QB1n1K/3bq3/1b5r/kNpr1b2/N1R3n1/2RN2Rq/BP1Qp2P/b1q2q2 w - - 0 1 illegal: No proof kernel
6k1/5r2/b3q1np/1BNbq1pn/PN1Bq3/3QRQK1/1R1Qr1P1/Nq1nn3 w - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 f5 g6 h5 Bg7 h6 e6 hxg7 exf5 Bd2 f4 Be3 Ra5 Bc1 Ra8 Kf2 d5 c4 f5 a4 Kf7 e4 b5 e5 b3 c5 f3 c6 h6 c7 b2 Bc4 f4 Rh5 b4 Ra2 d3 Nc3 b1Q Rh2 d2 Rh3 g5 Ra3 b3 Nge2 b2 Bb3 Ba6 c8Q Qe4 Ba2 b1Q Rb3 d4 Qg1 d1Q Qf5+ Qf6 Qf1 d3 Nd5 d2 Nd4 Ra7 Qc8 Qde1+ Kg1 d1N Kh2 f2 Be3 f3 Qc1 Ne7 g8N Ng6 Kg3 Nf4 Qd2 Nd7 Nb4 Nf8 Ndc2 Qe6 Na1 N8g6 Nf6 Re8 Nd7 Kg8 Nc5 Rf7 Qfd3 f1B+ Bf2 Q1e2 Bd4 f2 Rb2 Bb7 Bc4 Bd5 Bb5 Qe1 Kh2 Be2 Re3 f1N+ Kg1 Qg3 Kh1 Nh2 Kg1 Qb6 e6 Nf3+ Kh1 Ne1 e7 Qf6 Kg1 Qg4 Kh2 Qge6 Kg3 Bf1 Qc4 Qfe5 Qcd3 Ref8 e8Q Re7 Qd7 Rff7 Q3e2 Re8 Qf3 Bd3 Bc6 Ba6 Bb5 Rc8 Ncb3 Rc2 Qd3 Rd2 Nc5 Re2 Qd2 Bdb7 Qd5 Ba8 Qb3 Bd5 Qbd3 Nh5#
3K2b1/2q1Qb1N/nkB2RP1/6Pr/2r1N1b1/1pQ2Bqp/2r1Q2b/2RrB1n1 w - - 0 1 illegal: No possible last move
2b1Q3/1n1B1QbQ/5PnR/2B2KRb/P2r1B1N/qqq1p2p/1k3N1q/3rb3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 a4 Kd4 g4 c5 f3 h5 d6 b5 g5 h3 d7 e5+ Kf5 e3 d3 h2 g6 h4 f4 b3 g7 h3 Bd2 b2 Qb3 e2 Qa3 e1B Be2 b4 Bh5 c4 Qb3 e4 Bf3 c3 Bg4 c2 Nc3 b1B Qf7 c1Q Nd1 b3 Nf2 b2 Be3+ Kc3 d4 Ra6 d5 Rh4 d6 Nc6 Bc5 Qe7 Nf3 Nd8 Rg1 h1Q Ra3+ Kc2 Rb3 e3 Rb6 Nb7 Rg3 Qh2 Rg2 Nf6 g8Q Bg7 Qh7 Ng8 Rc6 Ba2 Rb6 b1Q Rc6 Rh6 Nh4 Qb3 Rb6 Re6 d8Q Kb2 d7 Qc3 Qde8 Re4 Rh6 Rd4 Rg1 Re6 d8B Rd1 Bc7 Re4+ Kg6 Bb1 f5 Red4 Bf4 Bd3 Rg2 Be2 f6 Qf8 Kg5 Ne7 Bd7 Ng6 Kf5 Bh5 Rg5 Qe7 Bb6 Qeb4 Bc5 Q4a3
1R1B2qR/KQ6/2bB1Pn1/p1b1bpkq/BQnN3R/N3q2r/1rq2P2/b7 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 h5 f5 h6 Qb6 e5 Qf6 exf6 gxh6 Qg4 h5 Qd1 h4 Kd2 Kf7 Kd3 Kg6 Kc4 a5 Kc5 d5 Kb6 h5 g4 e5 c4 e4 b4 h3 g5 h4 b5 e3 c5 h2 c6 e2 c7 e1B Ra3 d3 Nf3 d4 Bf4 h3 Qb3 d2 Bd3 d1Q Nfd2 Qg4 Be2 d3 Be3 Ne7 Nf3 d2 Qd5 d1Q Nbd2 Bd7 c8Q Bc6 Rb3 a3 Nd4 a2 Nc4 a1B Na3 Qc2 Qb7 Bec3 Qc5 Rh4 Bd1 Nd7+ Kc7 Ra6 Qb4 Nb6 Kb8 Qge2 Bf4 Qe3 Bc7 Rh8 Bd8 Rh5 Rg1 h1Q Rg4 h2 Rh4 Qd5 Rb1 h1Q Rb2 Qce4 Ba4 Qc2 Rb3 Qg8 Rb1 Kh7 g6+ Kh6 g7 Ng6 Rb3 Bc5 Rb1 Qh7 g8R Kg5 Rh8 Qg8 Rb3 Nd5 Rb1 Rb6 Ka7 Qh2 Qc8 Rb8+ b6 Qh1 Qb7 Qhd1 Re4 Rh3 Reh4 Qh5 Qg7 Bf8 b7 Nb6 Qd7 Bc5 Qe7 Rc8 b8B Bcb2 Bd6 Rb8 Nb3 Be5 Nd4 Nc4+ Ka6 Rb5 Qb7 Nb6 Rb3 Ne7 Ka7 Ng6 Qc4 Rb4 Rb1 Rb3 Qb4 Rb2 Qc3 Ra2 Qc8 Nc4+ Rb6 Rb2 Qa8 Bb4 Rb8 Nb6 Qb7 Bc5 Qb4 Nc4+
q1br1R2/R2r2bN/n1k1Bp2/2B2P2/nqbp1Qrr/2B2NRQ/2PKb3/8 w - - 0 1 legal: proof: d4 b5 b4 c5 h4 g5 a4 gxh4 d5 cxb4 axb5 e6 Qd3 exd5 Qd1 d4 g4 a5 f4 d5 e4 Kd7 b6 h5 b7 h3 f5 b3 e5 h4 e6+ Kc6 e7 b2 e8R f6 g5 h2 g6 d3 g7 d4 Ra3 a4 Qh5 h3 Qh4 d2+ Kd1 Na6 b8B Ra7 Nf3 Ne7 g8Q Nd5 Bg2 Bg7 Re7 Nb6 Qf7 Rd7 Nc3 b1Q Ba7 Qb4 Ne4 Qe8 Re3 a3 Neg5 a2 Qb3 a1R Qf4 Na4 Bc5 Qd8 Rhe1 h1B Nh7 h2 Rc3 Ra3 Bb2 Qf8 Ke2 d1B+ Kd2 Be2 Rf7 Qe8 Ra1 Qe4 Ra2 Rhd8 Rf8 Qe8 Bf1 Bg2 Ra1 h1R Ra2 Rh4 Ba1 Bb5 Bc4 Bf1 Be6 Bbc4 Bb2 Bfe2 Ba1 Qb8 Re3 Qd6 Qd3 Qb8 Bc3 Qb4 Ra1 Bd1 Qf1 Bde2 Qh3 Rg4 Ne1 Rb3 Rg3 Rb1 Nf3 Rh1 Qg2 Rhh4 Qh3 Qa5 Rb1 Qe7 Rb7 Qb4 Ra7 Qb8 Bb6 Qb4 Bc5 Qa8
2Nq2bB/2nQ4/1P1Pr3/1bq1R1br/8/pkb1pBKn/1nN2Q2/2RB2nN w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Ke6 Kf2 Kd5 d4 a5 b4 e5 b6 c5 f5 h5 b7 e3+ Kf3 a4 f6 a3 g5 e2 g6 e1N+ Kf2 e4 g7 c3 b5 c2 f7 h3 b6 h4 Qe2 c4 Qe3 c3 Qe2 h2 Qf3 h3 Bb2 c1B Qd3 c2 Bc3 Nf3 Qd2 Bd7 Qd1 Bb4 f8Q Na6 b8N Bb5 Be2 Bg5 Nd2 c1Q Kg3 e3 Ne4 Nc7 Nd6 Nf6 Nc8 Rh5 Na6 Ng4 Rb1 Qc2 Rc1 Nge5 Ba1 Qc5 g8B+ Nf7 Qa4 Bc3 Bd1 Rb8 Ne2 Ng1 Bh7 Nd6 Nb4+ Kc4 d5 Rb7 Qa7 Rb8 Nc2 Kb3 Qf3 Nc4 d6 Nb2 Be4 Ra8 Qb7 Ra4 Bc6 Re4 Qf2 Re6 Bg2 Nf3 Rf1 Ng1 Bf3 h1B Qc6 h2 Qd7 Bg2 Bg4 Bd5 Bf3 Nd3 Bb2 Be1 Bh8 Nb2 Kg2 Bc3 Ng3 Be4 Nh1 Bh7 Re1 Bg8 Re2 Bd3 Rd2 Ba6 Rd5 Bb5 Ng3 h1N Re5 Qc6 Qd2 Nf2 Nh1 Qc5 Kg3 Nfh3 Qh2 Qc6 Qf2 Qc5
B1bk1r2/1r2R2b/1p1n1N1N/1B2Bqq1/Q3nP1p/1PK3b1/2R1N3/Q1nbn3 w - - 0 1 legal: proof: h4 d5 e4 a5 c4 f5 cxd5 fxe4 h5 a4 h6 a3 b3 gxh6 Qc2 h5 Qc3 h4 Qb2 axb2 a4 h5 d4 e5 Kd2 c5 g4 c4 a5 b6 f3 h3 g5 e3+ Kc3 e4 d6 h2 d5 e2 a6 e1N a7 e3 g6 e2 g7 h4 Nd2 b1B Bb2 Nc6 Ne4 Nd4 Ra2 Qg5 d7+ Kd8 Nf6 Rb8 a8B Rb7 f4 Bh7 Ba1 Nf5 Rc2 Bc5 Bb2 Bf2 Ba1 Ngh6 g8N Nf7 Nh6 Rf8 Bb2 Ng3 Ba1 Nd6 Bb2 Kc7 d8Q+ Kb8 Qe8 Kc7 Qa4 Kd8 Nf3 Qf5 Nd4 Qg5 Rg1 h1B Ba1 Bf3 Rh1 Nf7 d6 Qf5 d7 Nd6 Bg2 Bg4 Bc6 Qg5 Bb5 Nge4+ Kb4 c3 Rh3 Kc7 Re3 Kd8 Bb2 Bg3 Ba1 Nf2 Re7 Nfe4 Bb2 Ng2 Qa1 e1Q Ne2 Qd1 Qa4 Ne1 Ba1 Qdd5 Bb2 Kc7 Qa1 Qdf5 d8Q+ Kb8 Qe8 Bf3 Rd2 c2 Be5 c1N Rc2 Bh5 Bc4 Bg4 Qea4 Bh5 Bb5 Bf3 Nc3 Bd1 Ne2 Nc5 Re6 Kc7 Re7+ Kd8 Kc3 Nce4+
1nQR1bNN/1RB1bN2/P2Qnq1q/4rn1k/1P2r2p/K1Q5/Bp4b1/4nb2 w - - 0 1 illegal: No proof kernel
r1bNBq2/q3QbQP/K3nbp1/nBpkNQ2/b4R2/2P4n/2N2R2/3r1n2 w - - 0 1 illegal: No possible last move
b4k2/1n4p1/rb1p1nQQ/1b1N1KP1/1NQ5/2r1PqRr/1B1R3q/2Nr1Bb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 g5 cxd4 Qd3 Ba3 Qf3 Bf8 Qg4 hxg4 Kf2 a5 b4 f5 c4 d3 h4 a4 e3 a3 h5 d2 c5 d1Q b6 a2 h6 f3 Kg3 f2 Kf4 g3 c6 g2 c7 Ra3 h7 Na6 b5 Bb7 c8Q Nf6 Ne2 g1B Nbc3 Nc5 Rh2 Ba8 Bb2 Nb7 Nc1 Bc5 Nd5 d6 Rb1 Bd4 Qc4 a1R Rh3 Ra6 Rg3 R1a3 Ra1 Kf8 Ra2 Nc5 b7 Rc3 b8N Nb7 Nc6 Bb6 Ncb4 Qh5 Ba3 Qh2 Rd2 Qe8 Bb2 Qf7 Be2 f1B Bd3 Rg8 h8Q Qfh5 Qh6 Rh8 Be4 Be2 Bg2 Qf7 Qg6 Rh3 Bf1 Bd3 Kf3 f4 Qh6 Ne4 Kg4 f3 Qg6 f2 Qh6 Ba7 b6 Nf6+ Kf4 Be2 Kf5 Qh5 Qc7 Bb5 Qc4 Nd8 b7 Bb6 b8Q Qd1 Qbc7 Nb7 Qe4 Qe2 Qcc4 Qf3+ Ke6 Bc7 Qeg6 Bb6 Be2 f1R Bd3 Rd1 Bf1 Qh5 Kf5 Qf3+
q1B2Qq1/N1Bq1pQ1/B1nrP1N1/2R1nR2/1p3b2/1nPq4/k3nK2/1r1b1R2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 a4 Ke7 h4 Ke6 e4 d5 c3 b5 a5 g5 h6 f3 h7 f2+ Ke2 b3 h5 b2 e5 g4 h6 b4 a6 g3 a7 g2 Ra6+ Bd6 Kf3 d3 Rh3 d4 Rh4 Kd5 Qc2 Kc4 Qd1 Ne7 Bd2 Nd7 Kg3 Qg8+ Qg4 Kb3 Rh1 Nc6 Ne2 g1N Bf4 d2 Qg7 d1Q Na3 b1Q Nb5 d3 Ra5 d2 e6 Ba6 Be5 Rd8 a8B Qa2 Nf4 Ne2+ Kg2 Qa3 Bb7 Ka2 Bc8 Qc2 Rh5 d1Q Ng6 Qcd3 Rf5 Bb8 Bf4 Nde5 Na7 Rd6 Rc5 Bb5 Bh2 Ba4 Qf8 Q1d2 Bf4 Bd1 Qg7 Qd8 Qf8 Rg8 h8Q Qd7 Bg3 Qg5 h7 Qa5 Qhg7 Qa4 Nb5 Qa8 h8R Qgd8 Rhh5 Rh8 Rhg5 Rh1 Na7 Q8e8 Qe7 Qg8 Qef8 Ng1 Be2 f1N Kf2 Nd2 Rg4 Nb3 Rgf4 Qb1 Bea6 Qd3 Bh4 Ne2 Bd8 Bc2 Bc7 Rb1 Rh4 Bd1 Rh1 Rd4 Rf1 Rd6 Bb6 Bc7 Ba5 Bd8 Bb6 Bg5 Bc7 Bf4
K1B1nQ1n/Q4p2/1NnqpRqr/B7/2n2b2/6q1/R2Nk1PP/RQq2br1 w - - 0 1 illegal: No proof kernel
Q2q3b/R1rPkNnN/qNp1P3/7Q/1R1q1bb1/BR4r1/b1K1np2/3B3q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 f5 d4 h5 Kd2 a5 e4 c3+ Kc2 a4 g4 h3 g5 f3 b6 f2 d5 a3 e5 h4 d6 h2 g6 a2 g7 f4 b7 f3 b5 h3 b6 Nc6 b8N Nd4+ Kd3 c6 b7 c2 Nd7 Ne7 g8Q Ra3+ Kd2 Ne2 b8R Nf5 Nc3 Rh7 Rb4 Ng7 Nb6 Bg4 e6 Rb3 Rb1 a1Q Ba3 c1B+ Kc2 Bf4 Ne4 Qd4 Ng5 Rd3 Bg2 f1Q R1b3 f2 N1f3 Re3 Ne5 Rg3 Rg1 h1B Nef7 h2 Bf3 Bg2 Qh8 h1Q Qa1 B4h3 Bh5 Bd5 Qd1 Bg4 d7+ Ke7 Qg8 Rh8 Nh7 Bc4 Rb1 Ba2 R1b3 Nc3 Qf3 Qa6 Ra1 Ne2 Qd5 Ne8 Qe5 Bg7 Qf5 Bf6 Qfg6 Ng7 Qf5 Qc7 Qa8 Rc8 Qa5 Qd8 Qe5 Bh3 Bf3 Bg4 Qh5 Nc3 Bd1 Rc7 Rab1 Ne2 Ra4+ Bd6 Rbb4 Bf4 R1b3 Nf5 Ra5 Bh8 Raa4 Ng7 Ra5 Qb7 Ra7 Qa6
qb1r1n2/3p2NR/1n3r1b/rQ1P3R/Q4bNB/3bp2N/Br3P2/kq1Q3K w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 c4 Kf7 d4 Ke6 g4 h5 c5 Kd5 c6 a5 b6 e5 c7 h3 b7 a4 g5 h4 g6 e3 g7 h2 Bg2+ Kc4 Kf1 b3 d5 h3 Bf3 a3 Bg4 b2 Bh5 a2 Bg4 e2+ Ke1 e4 Qd2 Kb3 Bf5 Nf6 g8Q Na6 b8N Bh6 Bg4 Nc5 Na6 Nh7 Nc3 b1Q Bf5 Nf8 Qg4 Na4 Nd1 Nb6 Ne3 Bb7 c8Q Qe8 Nc7 Ra5 Qg6 Ba6 Qc6 Bd3 Qa6 Qa8 Ne8 Bf4 Qcb7 Rh6 Ng4 Rf6 Qd1+ Kc3 Bd2+ Kb2 Bh7 Bb8 Bg5 Bf4 Bf5 Bb8 Kd2 e1B+ Ke3 Bb4 Qaa7 B4d6 Bh4 Bdc7 Ng7 Bf4+ Kd4 e3 Be4 Rc5 Qaa4 Ra5 Qa6 Bf1 Bc2 Bd3 Bb3 Bh6 Q6b5 Bhf4 Nf3 Bh6 Ng5 Bf4 Rf1 h1R Re1 h2 Nh3 Rg1 Rf1 h1R Re1 Qc2 Rc1 a1B Ba2+ Qb3 Rc6 Bb8 Re6 Rg3 Re5 Rgf3 Rh5 R3f4+ Kc5 Rb4 Rf1 Rg1 Re1 Rg3 Rh1 Rgf3 Rh2 R3f5 Rh1 Re5 Rh2 Re8 Rh1 Rd8 Rh2 Bc4 Kd4 Bbf4 Ke4 Bd3+ Kf3 Qc2 Kg2 Qb1 Kh1 Bb8 Qa6 Rbb5 Bc4 Rb3 Q4b5 Ka2 Qa7 Bae5 Qaa6 Bec7 Qa4+ Kb2 Q6b5 Rb4 Bb3 Bcf4 Ba2 Ka1 Re5 Bh7 Ng1 Rc8 Bg3 Bd3 Rf5 Bhg5 Rh7 Rd8 Bh4 Bh6 Nh3 Rb3 Rh5 Rb2
Q5bb/1NP4k/Nn1b1b2/BpQ2q1n/nP3R2/3nN1Rr/p1K5/1RB3rq w - - 0 1 illegal: No proof kernel
1n1kr2B/2p3Rq/Q3q2p/1QN2n1K/NqR3B1/1r3n2/n2P1P1q/3RNbb1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 a5 b4 e5 g4 e3 Kf3 e4+ Kf4 e2 b6 e1Q b7 h3 g5 h6 b5 e3 b6 e2 g6 a4 g7 c3 Na3 c2 Rb1 h2 Ra1 Qd3 Nf3 Kd8 Nb1 a3 Nc3 a2 Bh3 Ne7 g8R Qh7 Na4 Nf5 Bb2 c1N Rg7 Bd6+ Kg4 Re8 Kh5 Be6 Rhg1 h1Q R1g4 Bh2 Rc4 Bg1 Qb3 Ra6 Qb5 Qh2 Qa5 Ra8 Qa6 Ra7 Rb1 a1Q Be5 Na2 Rd1 Qb1 Bd4 Nd7 b8N Qb4 b7 Bd5 Ba1 Bc6 Bc3 Bb5 Be5 Ra8 Bb2 Re3 Bd4 Rb3 Ba1 Ne5 Nd7 Nc6 Ndc5 Nb8 Bc3 Qf1 Be5 e1N Ba1 Qfg2 Bb2 Qe5 Bg4 Qe6 Bd4 Nd3 Ne1 Ne5 Rc3 Bf1 Rc4 Nf3 Be5 Nd7 Bc3 Rc8 b8Q Qg3 Qbb5 Nb8 Rg8+ Ke7 Rg5 Re8 Bh8 Kd8 Rg7 Qh2+
n4k1b/2pR4/qbrp1B2/1QnPn3/n1rq1PQ1/1bb5/K1RB4/R1N1Q2N w - - 0 1 illegal: No possible last move
n2N3R/1p5b/3RqkbK/bpN5/r1P2P1r/Q3nB2/3QbB1B/1Q2rr1q w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 g5 h4 gxh4 b5 f5 b6 axb6 exf5 b5 Ke2 Kf7 Kf3 e5 Kg4 d5 Kh5 d3 g4 d4 c4 e4 a4 d2 f4 h3 f6 e3 a5 h2 g5 d3 a6 e2 a7 e1R Be2 Qd5 Bf3 Na6 Nh3 Bb4 Nc3 Qe6 Ne4 Ba5 Nc5 Ne7 Kh6 Nc7 Ra4 Ned5 g6+ Kg8 g7 Kf7 Qe2 d1R Be3 d2 Bf2 Ne3 Qd3 Rc1 Qb1 d1B Bg3 Be2 Ng5+ Kg8 Ra1 Rf1 Bf2 Rce1 Nf7 Bd7 Bg1 Be8 Nd8 Bg6 Ra2 Qa6 Rd2 Qe6 Kg5 h5 f7+ Kh7 f8B h4 Rd6 h3 Be7 Kg8 Bf6 Rh4 Bd4 Ng4 Bdf2 Ne3 Nc6 Kf7 Nd8+ Ke7 g8Q Bh7 Bh5 Bg6 Kh6 Kf6 Qe8 Bh7 Qc6 Bg6 Qd5 Bh7 Qd2 Bg6 Bg3 Bh7 B1f2 Bg6 Rg1 h1B Bh2 Bhe4 Rg5 Bh7 Rg8 Beg6 Rh8 Rb8 Bhg1 h2 a8Q h1Q Qa6 Ra8 Bh2 Bc3 Qa3 Ra4 Rd4 Ba5 Rd6 Rh3 Qbb4 Na8 Qb1 Rg3 Bf3 Rg5 Qaa2 Rg4 Qa3 Rh4+
r1k2n1B/1p2P3/qPpq1QBQ/RbNR3r/3q1Qr1/r4b2/RK3Nn1/4q3 w - - 0 1 illegal: No proof kernel
2Q1q2q/P1b1RN1q/1N2r3/r4kn1/2b1b2p/2b1QB1P/QnN2qpK/1R4B1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 f5 c3 bxc3 Qd4 fxg4 Qa4 Nh6 Qd1 Ng8 f4 Ke7 Kf2 Ke6 Kg3 b5 a4 h5 e4 d5 a5 g5 h3 c5 a6 c4 Be3 c2 Qd4 c1B Ra5 h4+ Kh2 c3 Qb4 c2 Bf2 g3+ Kg2 d4 Nc3 d3 Qa4 d2 Be3 d1B Nd5 b4 Bb6 g4 Qa2 b3 Ra3 b2 Ne2 b1Q Ra4 Nf6 Ng1 Nbd7 Ne2 Bg7 Bg1 Bb7 Nb6+ Bd5 Ra3 Nc5 Re3 Nd3 a7 Nb2 Qc4 Qe8 Qa2 Bc4 f5+ Kf7 Nd4 Rh5 Re2 Nh7 e6+ Kf6 e7 Bf4 e5+ Kg5 e6 c1Q f6 Bc7 f7 Qc3 f8N Bc2 Ng6 Bf5 Ne5 Be4+ Ndf3+ Kf5 Nf7 Bd4 Re3 Bg7 Be2 Ng5 Bd1 Qe5 Re2 Qh8 e8Q Qc2 Qd7 Re8 e7+ Qe6 Qc8 Bc3 Kf1 Qd3 Ne1 g2+ Kf2 Qdd7 Nc2 Qeh6 Re1 Q6h7 Bf3 g3+ Ke3 Rg8 e8Q Rg6 Qe7 Re6 Qc5+ Bcd5 Ke2 Qde8 Qe3 Ba5 Rd1 Bb3 Rd7 Bc3 Re7 Bbd5 Bf2 Bb3 Re1 g1Q Rb1 Qh2 Kf1 Bbd5 Bg1 Bc4+ Qd3 Qd2 Qe2 Qe3 Kg2 Qf2+ Kh1 Qeg8 Qe3 Qe8 Ne5 g2+ Kh2 Bd8 Nf7 Bc7+ Qf4+ Kg6 Nd6 Nf7 Qe3 Ra5 Be2 Ng5 Bf3 Rae5 Nf7 Kf6 Qe1 Kf5 Qe3 Ra5+
nrB1kbbR/PrnN2R1/3n4/4np2/1q1NRb2/1QqPB3/Q1p5/K4b1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 g5 h4 b5 a4 f5 e5 c5 e6 f3 e7 f2+ Ke2 c4 d3 c3 d6 c2 Kd2 b3 Kc3 b2 a5 g3 h5 g4 h6 g2 a6 b4+ Kb3 g3 Ka2 Nf6 h7 Qc7 a7 Na6 Qg4 Rb8 Be3 Nd5 Nf3 g1N Qc4 g2 Qb3 Be6 Nbd2 b1N Nd4 Nf3 Rg1 Ne5 Ne4 Nd2 Re1 Rb7 Ng3 Ne4 Ka1 Nb6 Nh1 Bg8 Qa2 b3 d7+ Kf7 e8N Na8 d8Q Nd6 Be2 f1B Nf6 Qa5 Qb8 N6c7 Bf3 Qc3+ Qb2 Ke7 Bc6 Kf7 Bd7 Ke7 Bc8 Kd8 Nf2 Ke7 Nd7 Ke8 Rh1 g1B Rh3 Bh6 Nh1 Bf8 Rg3 Bh2 Rg7 Bg3 Bd2 Bf4 Re4 Rb5 Qb7 Rb6 Qd5 Rb7 Be3 Qa5+ Qa3 b2+ Ka2 Qc3 Qdb3 Bf7 Qa4 Rg8 h8R b1Q+ Ka3 Qbe1 Ka2 Qed2 Qa3 Qb4 Qb2 Qdc3 Ka1 Rb8 Rg4 Rg7 Qa2 Rh7 Rg7 Bg8 Rg4 Ne6 Nb6 Qcc4 Qbb3 Rhb7 Rg7 Nec7 Nd7 Qcc3+
n2b1q1k/P4B2/pKnnq2r/N1R2p2/BQ1R1q1B/1n2rP2/2q5/bQ2R1N1 w - - 0 1 illegal: No proof kernel
QRn3B1/P1b1B1Kp/Q6R/q3b1n1/1bPqbr1N/1Qq3p1/q3kB2/2r2N2 w - - 0 1 illegal: No proof kernel
1n3q2/P1P2r1n/1pq2B1K/1NR3RB/n1NRb1QB/2pQ3n/qbr3qk/8 w - - 0 1 illegal: No proof kernel
N6Q/r1q2P2/rR1qBbQ1/N3B2K/pq6/rB1p2Q1/b1qPk1n1/1R3q1b w - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b6 b5 Nc6 a5 bxa5 b6 a4 Ra3 Nd4 Ra1 Nb5 cxb5 Ba6 Bd3 Bb7 Bf1 Bc8 Ke2 Kf7 g4 Kf6 f4 d5 f5 Ke5 b7 Kd4 b8Q h5 b6 e5 f6 a5 f7 c5 g5 e3 Kf3 e2 g6 Kd3 g7 h3 b7 a3 Qc7 d4 b8Q a2 Qd7 a4 Qda7 c4 Nc3 h4 Qbb7 h2 Qab6 h3 Q7c6 e4+ Kg3 e3 Rb1 a1R Qg2 Ra6 Qgb7 Ne7 g8B Qc7+ Qd6 Be6 Nf3 Ng6 Qb5 Bg7 Qbb3 Ra3 Qb4 Bf6 Qe1 Nh4 Bb2 Ng2 Nd5 c3 Nb6 c2 Na8 c1Q Qb8 Ba2 Kg4 Q1c2 Qeg3 Rh5 Ba1 Rha5 Rb6 Ra7 Qe6 R5a6 Kh5 Qd6 Rg1 h1B Qf8 h2 Ne5+ Ke4 Qfg7 e1Q Qh8 Qeb1 Bc4 d3 Bb3 e2 Rd1 Qbb2 Rb1 e1Q Nc4+ Qbe5+ Kg6 Qb4 Na5 Qf1 Bh7 Qf4 Qeg4 Qed6 Be5 Qdc7 Bg8 Qcd6 Kh5 Qdc7 Qgg7 Qf1 Q3g6+ Kf3 Bh7 Ke2 Qg3 Qbd6 Bf5 Qf4 Bd7 Qfb4 Bde6 Nh4 Bc8 Bf3+ Bg4 h1Q Qg6 Qhd1 Kh6 Qf1 Bge6 Bh1 Kh5 Ng2
n1n2QQ1/2R2bq1/1r1bbQP1/NpNbq1p1/3R3q/nR4P1/1B6/bK4kB w - - 0 1 legal: proof: e4 c5 h4 g5 d4 cxd4 b4 b5 e5 a5 e6 axb4 h5 Ra6 Be2 fxe6 Bc4 e5 Bf1 Rg6 hxg6 e4 Kd2 e5 f4 Ke7 c4 Kf6 Kc2 Kf5 a4 h5 g3 d5 a5 b3+ Kb2 e3 a6 Ke4 a7 e2 a8Q e1B c5 h4 f5 d3 c6 d2 f6 Ke3 f7 Kf2 c7 h3 Na3 d4 Nf3 d3 Kb1 b2 Ng1 e4 Ra2 e3 Qe4 h2 Qeg4 e2 Nf3 Na6 Qh4 Qe7 Qh6 Be6 c8R Nc7 Qc2 d1Q Rb8 d2 Bg2 Na8 Qf5 Qa4 Bh3 d1B Qh7 Bc3 Bg2 e1Q Rd8 Qe5 Rd4 Bdb3 Qf6 Bbc4 Rhd1 h1B Ne1+ Kg1 R1d3 Qea7 Bd5 Bd6 f8Q Ne7 Qhg8 Nc8 Re3 Bf3 Nd3 Qg7 Nc5 Bg2 Bc6 Bgd5 Rf3 Bb3 Nc4 Bf7 Na5 Qc4 Rd2 Qh4 Rd4 Bde6 Ra3 Bbd5 Rb3 Rh7 Rf2 Rh8 Rc2 Rh7 Ka2 b1N Bb2 Na3 Bb7 Bc4 Bh1 Bcd5 Bc1 Ba1 Bb2 Rh8 Rcc4 Nc2 Kb1 Rh7 Na6 Rh8 Rc7 Na3+ Kc1 Rh7 Nc5 Qh8 Nd3 Be8 Rc2 Rb7 Rc7 Rb6 Nc5 Q8h6 Q6g7 B8f7 Qf6 Nc4 Kc2 Qg7 Kb1 Na3+
Q2R1r2/1Q4Qq/6R1/rr3Nnp/2b1pnBP/KBNqn3/1R2Pk2/1r1r2q1 w - - 1 2 illegal: No possible last move, all moves rejected
1B2r3/R1RN1B2/1Q6/2p2b1r/Rq1r2nP/NQPp2B1/r2b2qq/1rk1K2b w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 d5 Nc6 e6 fxe6 dxc6 e5 Qd4 e4 Qd3 Ra3 Qd1 Ra8 a4 Kf7 f4 Kf6 h4 Kf5 a5 b5 c3 g5 c7 d5 a6 e5 a7 b3 Qd2 b4 Ba6 d4 Rh2 b2 Qd1 e3 Qc2+ e4 Ke2 b3 Ra3 g3 Nf3 g4 Kf1 e2+ Ke1 g2 Rh3 g1Q+ Kd2 e1R Ra2 g3 Bb5 g2 Ng5 Bb7 c8R Nf6 Nf7 Rd1+ Ke2 Qh2 Ra1 Bh6 Rc6 Qb8 Re3 Ng4 Na3 b1R Bc4 b2 Ne5 Re8 Rd3 e3 Nd7 Ke4 f5 Re5 f6 Rh5 f7 Rd2+ Ke1 e2 f8B Be3 Rf6 g1Q+ Rf1 Qgh1 Bd6 Q1g2 Qb3 Bc6 Bg8 Qb4 Bf7 Re8 Ra2 Ra1 a8Q b1B Qb8 Ba8 Rc2 Ra2 Bg3 Rb2 Nb5 Bg1 Rf2 Qf3 Qb6 Bb7 Nf8 Bd5 Bb8 Bc6 Be6 Qfh1 Rf7 Bd5 Rdf3 Ba8 Rf2 Kd3 Rc7 Qf3 Nd7 Qfg3 Nf8 Bh1 Bf7 Qgg2 Nd7 Ba2 Qa4 Be6 Qb3 Rb1 Rb2 Bf5 Ra2 Ra1 Raa7 Ra3 Qc4+ Kc2 Qce6 Rd3 Bf4 Ra6 Bg3 Kc1 Qb3 Rd2 Qa5 Rd6 Qa6 d3 Qb6 Rb2 Na3 Rd4 Nc2 Kb1 Kd2 e1R Re2 Rc1 Rf2 Rf1 Re2 Rf2 Ke1 Kc1 Na3 Rb1 Nc4 Rg8 Rea2 Re8+ Qe6 Rc2 R2a4 Be3 Qb6 Ra2 Na3 Bd2#
N3rQ2/q1nQ2B1/pN3q1r/4BqpB/2P2n2/Knb1R2r/2R1q1Pk/1Q1q4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 c5 f5 cxd4 f6 Ba6 h5 Bd3 Be3 Bg6 hxg6 exf6 Bd2 f5 Bc1 f4 Kd2 Ke7 e4 Kd6 c4 Ke5 Kc2 d5 b4 f5 Kb2 h5 b5 a3+ Kb3 a2 b6 d3 g7 d4 b7 f3 Nd2 Kf4 e5 Kg3 e6 f2 e7 h4 e8Q f4 Rh2 f3 Be2 f1N Nh3 f2 Ba3 Ne7 g8Q Ng6 Bg4 Bg7 Qee6 Nf4 Qgf7 Qf6 Qf8 Na6 b8B Nc7 Ka4 Rh6 Nb1 d2 Qc2 d1Q Qd7 d3 Bb2 d2 Nc3 Qe2 Nd5 d1Q Ka3 Nd2 Rc1 f1Q Qb1 Nb3 Nb6 a6 Bh5 a1Q+ Qa2 Qb1 Rc2 Qg1 Rh1 Qge3 Re1 Kh2 Be5 Q3f2 Ba7 Rc8 Na8 Re8 Bad4 Qfe3 Bb2 Qa7 Bbc3 Qef2 Re3 Qfe2 Rd2 Qe4 Rc2 Qef5 Qb1 Bh8 Nf2 h3 Ng4+ Kg1 Ba1 h2 Bad4 h1R Bc3 Q6e6 Nf6 Rh3 Nd5 Kh2 Ndb6 Qef7 Bd6 Bd4 Be5 Q7e6 Ba1 Bc3 Bg7 Qef6 Bb2 Be1 Be5 Bc3
3q2b1/b1Kp3B/bp1RNqQ1/6r1/RN1PQPNr/3n4/1k2q2q/3qrRB1 w - - 0 1 legal: proof: e4 a5 c4 f5 b4 fxe4 h4 g5 c5 gxh4 c6 Na6 Qg4 Nc5 Qe2 b6 Qd1 Nb7 cxb7 axb4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 b8Q e5+ Ke3 c5 a4 h3 g4 h2 d3 b3 a5 h4 a6 h3 f3 c4 a7 c3 Bb2 c2 Qd2 c1Q Ra2 Ba6 Qb7 Bd6 Bg2 Nh6 Qd5 Qf1 Nc3 Nf7 Nge2 Bb8 Nd4 Rh4 Ne6 Qa1 Bc1 b2 Rf1 b1Q Qc2 h1B g5+ Kf5 g6 h2 Bd2 Qd1 g7 Qb2 g8N Qba1 Kf2 e3+ Kg3 e2 Be3 e1R Nf6 Qe2 Qd6 e4 Bg1 e3 Ng4 Ne5 Nd5 Qad1 d4+ Nd3 Ra5 Qf6 f4 Qd8 Bh3 Ke4 Nb4 Bg2 Rd5 h1Q Qf8 Bf3 Qh6 Bg2 Rd6 Bf3 Ne5 Bh5 Qb1 Bf7 Ng4 Bg8 Qf6 Qa2 Qc2 e2 Qg7 Qd5 Qg6+ Qf5 Qb1 Rh5 Qc2 Rg5 Qb1 Qh2+ Kh4 Bc7 Qc2 Rc8 a8R Bb8 Ra7 Bb7 Ra4 Ba6 Nf2+ Ke3 Qc6 Kd2 Qe4 Kc1 Ng4 Qh1 Kg3 Qh2+ Kf3 Ba7 Qh7 Rb8 Qe5 Qf7 Ke4 Kb2 Kd5 Qff6 Nh6 Qc7 Rc6 Bf7 Bf5 Rh8 Ng4 Bg8 Qe4 Qcd8 Qf7 Rh4 Kd6 Kb3 Bh7 Kb2 Rf2 Rf1 Qfg6 Ra5 Rf3 e1Q Rf2+ Qee2 Rf3 Qde7+ Kc7 Rg5 Rd6 Re1 Rf1 Qd8+
2Q2nNR/Ppbn1nq1/Q3q1Bn/B4rB1/k2K1Rr1/3R1n2/1P1p2Nr/5q2 w - - 0 1 illegal: No proof kernel
7n/Kpb1bn2/rPR3b1/1P4k1/1q2q1NR/1Bb1b1N1/2Npb1QQ/B1b4B w - - 0 1 illegal: No possible last move, all moves rejected
n6q/2NB3P/n2B2rk/1rn1pQ2/r1r1Nr1K/nb3pB1/2RN1P2/2n2QR1 w - - 0 1 illegal: No possible last move, all moves rejected
2k3q1/Q2pK3/RBqP1b1q/4PB2/pBN1r2q/4NRnr/2Qb3q/1R2qb2 w - - 0 1 illegal: No possible last move, all moves rejected
N1qrrK1R/kN6/p4R2/3q2r1/2n2B2/P1p2QB1/B1Pbn3/1rQrnr1R w - - 0 2 illegal: No possible last move, all moves rejected
1KR2Qqn/N1qBQ1p1/1n1qq3/4P1Pq/N4Rqk/r7/2Rp3r/1bBn3B w - - 0 1 illegal: No possible last move, all moves rejected
NbQq1brb/Q2b1b2/RR1Qp3/1B5N/4P1P1/3rbK1p/3r1n1B/qk2B3 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 h3 g5 Na3 g3 Bb2 g2 Be5 g4 Nb1 g3 Bb2 Nc6 Ba3 Ne5 Bc1 Ng4 hxg4 Qd3 Nh3 Qd4 Ng1 Qd8 f4 Kf7 a4 Ke6 d4 Kd5 f5 Ke4 d5 b5 e3 c5 Ke2 h5 d6 h4 f6 b3 a5 e6 d7 b4 a6 b2 f7 h3 a7 c3 Qb3 c4 Ra6 c2 Ra3 c3 Ra2 Nf6 Ra3 Rg8 Bd2 c1Q Ra6 c2 Qa2 b3 Nf3 g1B Ra5 g2 Ne1 Bh2 Ra6 g1B Na3 b1B Nc4 b2 Ng2 Bb8 Nb6 Bgh2 Bb4 Bhe5 Nf4 Qd1+ Kf2 c1B Bb5 Bd3 Ba5 b1R Nh5 Rb3 Be1 Bb1 Qa3 Rd3 Qd6 Qa4 Rh2 Bd4 Kg3 Qa1 Rc2 Rd2 Rc4 Kd3 Kf3 Bb2 Rb4+ Kc2 Rb3 Ne4 Rb4 Qg5 d8Q Bd7 Qc8+ Bc5 Rb3 Nf2 Rb4 Bh8 e4 Qd8 Rb2+ Kc1 Rb4 Bc2 Rb2 Be3 Rb4 Be7 f8B Be8 Bg7 Bf7 Be5 Bf8 Bh2 Rd3 Qb7 Ba4 Qc8+ Bc7 Rb3 Rb8 a8Q Rd2 Be2 Bd7 Qa7 Rb7 Bc4 Bb8 Na8 Rb4 Rb2 Rb3 Be2+ Rc3 Rbb6 Kc2 Bc4 Rcd3 Bb5+ Kb1
Br1r1N2/N5b1/1qb1bq2/2N1b3/ppR1R2Q/bn5Q/PP1K4/bQB2rk1 w - - 0 2 illegal: Other
2bRB3/1q4bq/2brnppb/1B3Nb1/3QrRb1/k1r2PPQ/4N3/3BK1R1 w - - 1 2 legal: proof: d4 a5 h4 d5 b4 axb4 c4 dxc4 h5 e5 d5 Nc6 Bb2 Nce7 Bd4 exd4 h6 g6 Rh4 Nf5 Rh1 Ng7 hxg7 Ke7 Nd2 Kd7 Nb1 Ke8 a4 Kd7 e4 Kd6 g3 Kc5 a5 h5 a6 b5 d6 b3 e5 Kb4 d7 c5 a7 d3 e6 c3 e7 f6 e8B h4 Qe2 d2+ Kd1 h3 Qe6 b2 Qd6 h2 Ke2 d1R Qd5 c2 Bg2 c1B Bh3 c4 Qh5 c3 Na3 b1B Nc4 c2 Bg2 Bg5 Bc6 c1B Ra2 Qe7+ Be4 Rd6 d8Q Nh6 g8R Bg7 Na3 Nf5 Rc2 Nd4+ Ke1 Ne6 Qh3 Rh4 B4c6 Re4+ Ne2 Ba2 Rg1 h1B Rh8 Bd5 Rf8 Bf3 Nc4 Bg4 Ne3 Ka3 Nf5 b4 Bb5 b3 Rc4 b2 f3 Rb8 a8B b1Q Bac6 Rb7 Qb6 Rc7 Qd4 Qb3 Ba4 Qb7 Bcb5 Bc6 Bd1 Qf7 Bd7 Qg8 Rd8 Qh7 Be8 B5h6 Qd5 Bcg5 Rd4 Re3 Rf4 Re4 Qd4 B6d7 Qe3+ Rc3 Qd4 Bc6
4bR2/nbb1K3/1qrp3B/Qb1rN1NR/2b5/3Pb3/P1rQ1qNp/3B1k1B w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Na3 b5 Nb1 b3 c4 b4 Rh3 Nc6 Rh2 Nd4 Rh1 Nb5 cxb5 Ra3 Rh2 Ra6 Rh1 Ra8 Kf2 Ke7 Kf3 Ke6 Ke4 c5 g4 f5+ Kf3 Kd5 e4+ Kd4 b6 h5 e5 c4 e6 b2 g5 b3 b7 c3 b8N h3 e7 h4 e8Q h2 g6 h3 g7 c2 Na6 Ne7 g8B Bb7+ Bd5 Rh6 Qe2 Rc6 Qe6 Rac8 Nb8 Qb6 Bg2 Kd3 Nc3 b1R Ne4 b2 Ne2 d6 Rg1 h1Q N4g3 h2 Rf1 Qhg1 Q8d7 Bh6 Rf2 Bg5 Qg6 R8c7 Qg7 Nc8 Qd8 Na7 Nd7 Qf1 Qa8 Bd8 Ne4 Rc8 Qf8 Bc7 Qh6 Qg1 Bh1 Qe1 Kg2 f3+ Kg3 f4+ Kh4 Qg1 Rf1 f2 Bb3 f3 Ng5 Qg2 Re1 f1B Kh5 f2 Kg6 Qg3 Kf6 Qf3+ Ke7 Qf5 Ng1 Be2 Ba4 f1B N1h3 Qff2 Bb3 Bh5 Re5 Be8 Rf5 Ke2 Ne5 Ke1 Nf4 Bb5 Ng2+ Kf1 d3 Bc4 Bd2 c1B Bf4 Be3 Bd1 Rc1 Rb1 Rc2 Rf8 Rc5 Rc1 Rd5 Rb1 Bcb5 Rc1 Rc6 Rc5 Bc4 Rb5 b1B Ra5 Bc2 Rc5 Nb5 Qa5 Na7 Qh3 Bd4 Qe3 Ba4 Qed2 Bab5 Ngf7 Bb3 Bh6 Be3 Ng5 Rb8 Rc4 Rc8 Rh4 Rc2 Rh5 B3c4 Rg8 Bb8 Rh8 Rc6 Rf8 Bc7
k6r/pn3r2/BQ1B1rRQ/2qnN1NP/P3q1rK/r1n3p1/3b4/Q1RBr3 w - - 0 1 illegal: No possible last move, all moves rejected
5n2/N1QN1nKp/B2r1rNr/6B1/Q2pr1P1/R3rbRP/Br1bbk2/3r4 w - - 0 1 legal: proof: d4 g5 b4 a5 d5 axb4 d6 cxd6 Nh3 d5 Ng1 d4 f4 gxf4 e4 d5 Bb2 d3 Ba3 d4 Bc1 Qd5 exd5 Bf5 Qg4 Be6 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 b5 c4 f5+ Kf3 Ke5 a4 b3 g4 d2 a5 b2 a6 b4 d6 b3 h3 Bh6 c5 Bb7+ c6 Nd7 a7 Rd8 a8N Nf8 Qc2 d1R Na3 b1R d7 b2 Ke2 f3+ Kf2 f4 Qb3 Ke4 c7 e5 c8B Bg5 Be2 Nh6 Bf1 Nf7 Ne2 Rg8 Ng1 Rg6 Nb6 Rh6 Ba6 Rd3 Rh2 Re3 Rg2 Bd5 Bd2 Rd1 Rg3 b1R Ne2 Rb2 Nb5 Ba8 Qa4 Kd3 Bcb7 e4 Bd5 Bc6 Be1 Bb7 Ba2 Bc6 Kg1 f2+ Kh2 f1B Bd2 f3 Bc1 f2 Na7+ Bb5 Bd2 Bg2 Bc1 f1R Nf4+ Kc3 Ng6 Kd3 Bd2 Ke2 Bc1 Kf2 Bd2 Re8 d8Q Re6 Nd7 Bf3 Qc7 Rd6 Bc1 Reb3 Bd2 e3 Bc1 e2 Bf4 Bf6 Bg5 e1R Rc1 Rb4 Rc3 Re4 Ra3 R4b3 Rg1 Ke1+ Kg3 Bbe2 Rg2 Rbe3 Rg1 Re5 Kf4 R5e4+ Kf5 Kf2 Rg3 Bd8 Qb7 Ba5 Qc7 Ne6 Kf6 Nf8+ Kg7 Bd2 Bd8 Rc1 Be7 Rcc6 Bg5 Rd1 Kg8 Rf6 Kg7 Rcd6
1nN2bb1/1n2B3/1KR3B1/q1Q3Q1/q1rR1P2/1Q3b1p/bn2RbpP/2k1nN2 w - - 0 1 legal: proof: d4 b5 b4 a5 f4 axb4 e4 f5 d5 fxe4 d6 Ra3 f5 Rf3 gxf3 cxd6 f4 d5 Ba3 d4 Bb2 Qc7 Bc1 Qd8 Kd2 Kf7 c4 Kf6 a4 h5 c5 Rh6 c6 d5 c7 g5 a5 e5 a6 b3 a7 g4 a8R b4 R1a4 b2 Ne2 d3 Ke3 g3 Nbc3 b1Q R8a7 h4 R4a6+ Bd6 Ra3 b3 Na4 b2 Ng1 d4+ Kd2 e3+ Ke1 h3 Nc5 g2 Nb3 e4 R3a6 d2+ Ke2 Qc2 Rb7 b1B Nc5 Ba2 Ba3 Bce6 c8Q Qa4 Rb1 Qda5 Nf3 Ne7 Qg8 Nc8 Qb3 d1N Nd2 Nb2 Nb7 Be7 Rg1 Nd6 Rd1 Rh5 Rc6 d3+ Ke1 e2 Kf2 e1B+ Ke3 Bc4 Kd4 e3 Be2 Bh4 Rge1 Bf2 Nf1 d2 Bd3 Rg5 Qd5 Rg3 Qdb5 Bg8+ Kc5 e2+ Ne3 Kg7 f6+ Kh6 f7 Kh5 f8Q Kh4 Rb1 d1B Bg6 Rg5+ Qf5 Bf8 Rc1 Rh5 Rc4 Rg5 Qd5 Re5 Rb4 Re4 Qdc4 Rd4 Nf1 Kg4 Qd5 Rd2+ Rd4 Rc2+ Qdc4 Rc3 Bb4 Kf3 Ba3 Nf7+ Nd6 Nd8 Nd2+ Ke3 Bb4 Qa8 Kb6 Nb7 Qg5 Q8a7+ Kc7 Qa8 Nc8 Q8a6 Be7 Q6a5+ Qb6 Rc1 Qcc5 Rc4 Bd6 Bc2 Be7 Be4 Nf1+ Kf3 Rc1 e1N Rc3+ Ke2 Rc2+ Qd2 Qb3 Kd1 Kb6 Bf3 Bd3 Qc3 Re2+ Kc1 Bg6 Qca5+
KN6/2b1b2R/b1Qr2p1/P2qrrP1/4k1BR/R1b5/1rNpBQr1/1qB4n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 d4 fxe4 h5 c5 Be2 cxd4 Ba6 Nc6 Bf1 Ne5 Kd2 Ng6 Ke1 Nh4 h6 g6 Ba6 Nf5 Bf1 Ng7 hxg7 Ra3 Qd2 Ra5 Qd1 Ra8 Kd2 Kf7 g4 Ke6 f4 Kd5 a4 e5 a5 b5 c3 h5 f5 e3+ Kd3 e4+ Kc2 h4 Kb3 e2 g5 e1B f6 e3 c4+ Ke4 c5 d5 f7 e2 c6 d3 c7 h3 Ba3 d2 Rh2 d4 Rh1 d3 Qc2 d1R Qc1 h2 Bb2 Bc3 Bh3 e1B Bf1 Nf6 g8B Be7 f8R Bg3 Qd2 Ng4 Ne2 Ba6 c8Q Bc7 Bc1 Nf2 Rf7 Rh7 Na3 Qd5+ Nc4 Rh3 Nd4 Rg3 Be2 Rg2 Ra3 Rf1 Qe8 Rd8 Rh7 Rd6 Be6 Re1 Qa2 d2 Nc6 Rf1 B6g4 Re1 Nb8 Rf1 Rg1 Nh1 Qc6 Rf5 Rf1 Re5 Rff7 Rf5 Rh4 Re5 Rfh7 Rf5 Kc2 Re5 Ne3 b3+ Kb1 b4 Nc2 b2 Qb3 Rf5 Ka2 b1R Qbc4+ Bd4 Qb6 Rb3 Qcc6 Bb2 Qf2 Re3+ Bc4 Bc3 Kb3 Re2 Ka4 b3 Bb5 b2 Bc4 Re3 Bce2 b1R R7h6 Ng3 Bb2 h1Q Rh7 Ke5 Nb4 Ra1 Nc2 Qb1 Bc1 Nh1 Qb7 Ra2 Qc6 Bb2 Kb4 Qg8 Kc5 Bc3 Qb7 Rb2 Qb6 Rd5+ Kc6 Red3 Qbc5 Ke4 Qd6 Rde5 Qd7 Bb5+ Kb7 Rd6 Qc6+ Qd5 Ka8 Ba6
N1R1B2q/Kqn1qqP1/2pR3Q/1RP1k2b/Q1n2p1n/8/1N2rBNn/1q2b3 w - - 0 1 illegal: No possible last move
q1Q2r2/b2QKB2/2qRR3/Rp1N4/1PPB2q1/1npBb3/2b1bb2/1nN1qk2 w - - 0 1 illegal: No proof kernel
6b1/1rn1qRBB/R2Qr1bR/2bqb1p1/1k3p1q/1N6/QNP2P2/bqKB4 w - - 0 1 illegal: No possible last move
n3q1b1/bq4bK/6n1/k1pR1Q1B/NbB1p1nn/b1P2Pr1/5B1Q/1NQ3R1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 b5 Na3 g5 Nb1 Ra6 Qf3 Rg6 Qe2 fxg4 Qd1 g3 Ne2 g4 Ng1 Rg5 hxg5 Bb7 Ba3 Ba6 Bc1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 d4 e5+ Ke3 h5 a4 b3 g6 b2 d5 b4 g7 h4 d6 h3 d7 b3 Na3 b1N Bd2 b2 Be1 h2 Bd3 g2 Qe2 g3 Nf3 g1B Bb4 g2 Nd2 Qe8 d8Q Be6 Qf6 Ne7 g8Q Na6 Bc5+ Ka5 Bc4 Ng6 Nb5 Bg7 Nc3 Rh3+ Qff3 c6 Qe1 Nc7 Qc1 Rg3 Qh8 Bg8 Qh5 Na3 Ndb1 Nab5 Qh8 Nd6 Bd4 Kb4 a5 Na8 a6 Nf5+ Kd2 e3+ Kd3 e2 Ke4 e1B a7 Qd8 Na4 Nfh4 Qf5 Ka5 f3 Bb4 c3 Bf2 Rd1 h1N Be3 Bg1 Bf2 Qe8 Rd7 Bh2 Qhh5 g1B Rd2 Nb6 a8B Ba3 Bb7 Na8 Bc8 Bb4 B8e6 Ba3 Bf7 Bb4 Be1 Ba7 Rd5+ c5 Qhh6 Bg1 Qhd2 Be3 Qh2 Bd2 Bf2 Bg5 Qe1 Bc1 Qd2 Ne7 Bh5 Neg6 Na3 b1Q+ Qc2 Qb3 Nb1 Bb2 Qc1 B2a3 Qg4 Ng2 Kf5 e4 Kg5 Bf6+ Kh6 N2h4 Qf5 Bh8 Bd4 Nf2 Be3 Bf7 Bd4 Ng4+ Kh7 Bg7 Bf2 Qd1 Re5 Qdd7 Rd5 Qc7 Ra2 Qb6 Rad2 Qc7 Rd1 Qb7 Rg1 Bg8#
n7/qQB2bkP/1n3R1n/n1rNQr2/1p1Knrq1/2B2Rp1/1P3N1r/2N2B2 w - - 0 1 legal: proof: f4 h5 d4 e5 d5 exf4 d6 cxd6 Nh3 d5 Ng1 d4 g4 hxg4 a4 b5 a5 Ba3 Nc3 Bc5 Nb1 Bb6 axb6 Rh6 Nd2 Rh7 Nb1 Rh8 Kd2 Kf8 Kd3 d5 h4 g5 c4 a5 e4 f5 h5 a4 b7 f3 e5 f2 e6 f4 e7+ Kg7 e8Q a3 c5 a2 c6 f3 c7 b4 Be3 g3 Qd7+ Qe7 Qe6 g2 Qe4 g4 Rh4 Nh6 Bf4 Be6 c8N Na6 b8B Qa7 Bfd6 Nc7 Rh1 Bf7 Nh3 g1Q Be2 f1R Qb3 f2 Kd2 d3 Nc3 d4 Re1 a1N Qbd5 Nb3+ Kd1 d2 Kc2 d1R Na2 Na5 Ne7 Rc1+ Kd3 Rc5 Nc1 g3 Qc6 Qg2 Qe3 Qf3 Qb7 Qg4 Nd5 Rf8 Bf4 Rh8 Ke4 d3 Kd4 d2 Bb5 d1N Qe5+ Kh7 Ba6 Nc3 Re3 Na4 Rf3 Nb6 Rg1 Rf8 Rg2 Rh1 Bf1 Rh2 Rg1 Qc8 Bd2 Qg4+ Qf4 Kg7 Bc3 Ne8 Bd6 Nc7 Rh1 Rae8 Rg1 Nca8 Bc7 Re5 Rg2 Rf5 Rg1 Ng8 h6+ Kh8 h7 Nh6 Bd3 f1N Nf2 Nd2 Bf1 Ne4 Qd6 Kg7 Qe5+ Kg6 Rh1 Rg2 Rh5 Rf4 Rf5 Rh2 Rf6+ Kg7 Qe6 Re8 Qf5 Re5 Qe6 Reh5 Qe5 Rhf5
q1BR2bk/1nprq3/B2Q2bb/2qp4/3K4/1N3Nbb/2PPNRQ1/n1qR4 w - - 0 2 legal: proof: f4 e5 g4 exf4 b4 a5 Na3 axb4 Nb1 f3 Nc3 f6 Nb1 f5 Bg2 b5 Bb2 h6 Bf6 f4 Bg5 hxg5 Bf1 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Rh3 Na3 Rh6 Nb1 Rh8 Kf2 Kf7 h4 d5 e4 g4 a4 g5 a5 Kg7 e5 g3+ Ke1 b3 e6 f2+ Ke2 g2 Kd3 b2 h5 g4 a6 f3 a7 b4 a8R g3 e7 b3 e8B Na6 Bc6 Nc5+ Ke3 Be6 R8a5 Rh7 f6+ Kh8 f7 Bh6+ Kd4 Nb7 f8N Qa8 Bc4 f1B R5a4 f2 Qe1 Nf6 Qe2 Rd7 Ra7 Bg8 Rh2 Ne4 Ba6 Nec5 Nf3 g1Q Nc3 b1Q Ne6 Qe1 Rd1 b2 Qe4 b1Q Ne2 g2 Ba4 Qd8 Ra8 Qc1 Rc8 Qf8 Rd8 Qe7 Qf4 Qe8 Qd6 Nb3+ Kc3 Qf8 N6d4 Na1 Nb3 Qe7 Kd4 Qa3 Nc3 Bd3 Ne2 Bg6 B4b5 Qc1 Bd3 Qe8 Bf5 f1B+ Kc3 Bg5 h6 Qc5+ Kd3 g1B h7 Bh6 Rf2 Qb5+ Kc3 Bh2 Kd4 Bh3 Bg4 Bg3 Be6 Rg7 Bc8 Rd7 Neg1 Q1e7 Ne2 Kg7 h8Q+ Kf7 Qhe5 Kf8 Qee6 Kg7 Qe4 Kh8 Ne5 Qa5 Qg2 Qaa3 Bd3 Qa8 Ba6 Q8f7 Nf3 Qfe6 Qb4 Qc6 Qd6 Qc5+
3NN1B1/K2k4/1rpB1p1r/1qQ2Rbr/1QbR1r2/qqPr1Q2/nqRP4/8 w - - 0 1 illegal: No possible last move
2r4N/1p4R1/3q3b/1Q2qR1K/bbn1BPNb/1P1Qq3/kq1B1r1p/1R3q1Q w - - 0 1 illegal: No proof kernel
1R6/3rq2r/3qNB2/3r2nQ/q1bQKnNQ/1R1pRB1P/rq1P3p/1n4k1 w - - 0 1 illegal: No proof kernel
K3b1Q1/RQ2p1b1/q1P1NB2/bq1rBn1n/B2qN2n/p4Nq1/P3R2b/1k6 w - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 g5 c5 gxh4 c6 bxc6 Na3 c5 Nb1 c4 d4 a5 Rh2 c5 Rh3 c3 Rh2 c4 Rh1 Ra7 Nd2 Rc7 Nb1 Rc5 dxc5 Qc7 Bd2 Qb6 Bc1 Qd8 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 h5 b4 a4 f4 a3 g3 c2 c6 h3 b5 h2 b6 c3 b7 e3 Qe2 h4 Nh3 Bg7 Kc5 Ke4 f5 d5 f6 d4 f7 d3 f8N d2 g4 d1N g5 Nd7+ Kb5 Ndf6 Ka6 Bd7 Ka7 Nh5 b8B Be8 g6 Nh6 Rg1 h1Q Bb2 c1B Kb7 c2 Rg2 Qh2 Nf4 h3 Qf2 e2 Qg3 e1B Ka7 Ba5 Bc4 Qd4+ Ka8 Nf5 Nd5 Bf4 Qb3 c1Q Bb5 Nh4 Re2+ Ne3 Ba4 Qcc5 Qb7 Kd3 Nf6 Nef5 Ne4 Qg3 Ne6 h2 Be5 h1Q Nbd2 Qb5 Nf3 Qf1 Rc1 Rf8 Rc5 Rf7 Rd5 Rf8 Rd7 Rf6 N6g5 Rd6 Ne6 Rd5 Bf6 Qdg1 Bbe5 Qd4 Qb8 Qa6+ Ra7 Qb1 Qb7 Qb3 Re1 Kc2 Re3 Kb1 Re2 Bgh6 g7 Qbb5 g8Q Bg7 Rd2 Qgg1 Rf2 Bh2 Re2 Qg3
q1Q2b2/R1b4Q/1R1p2p1/nq2N1B1/P2Pb1K1/Nnn2qb1/1kB5/n1r2N1R w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c4 hxg4 Bh3 b5 Nc3 b3 Nb1 b4 Bg2 Ra5 Bf1 Rb5 cxb5 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Ke7 e4 Kd6 d4 f5 a4 c5 h4 g6 b6 b2 h5 f3 Kg3 f4+ Kh2 f2 e5+ Kd5 e6 b3 h6 c4 e7 c3 e8R g3+ Kh3 f3 b7 g2 h7 c2 Bd2 c1B Ba6 f1Q Bf4 f2 Re7 Nf6 Nf3 g1B+ Kh4 Qb5 Be3 Kc4 Re8 f1Q Qe1 Ng4+ Re7 Bh2 Ng5 Nc6 b8Q Na5 Rg7 Qf3 Qe5 Bb7 Re7 Be4 Qb8 Bc7 Qc8 d6 Na3+ Kd3 Qg3 Kc3 Qh2 b1N Rf7 Rg8 h8N Nd2 Rb1 b2 Rg7 Ndb3 Nf7 Qde8 Ne5 Qec6 Bf4 Ne3 Re7 Nc2 Be3 Qbb7 Bd3 Nca1 Bc2 Qa8 Rh7 Qb5 Qhh3 Qfe2 Ngf3 Rg7 Bg5 Bf4 Nh2+ Qf3 Qhd7 Bg3+ Kh3 Rf7 Nf1 Rf5 Nc6 Rc5 Ne5 Qe3 Kg4 Qed3 Rd1 b1N Re1 Kb2 Rc1 Nc3 Rb1+ Ka2 Rf7 Nd2 Rb4 Ndb3 Rfh7 Kb2 Qg7 Qba6 Rb6 Qab5 Qh6 Rc4 Rg7 Rc6 Qh7 Qf3+ Kh3 Nd1 Bb1 Rc1 Bc2 Bb8 Rgb7 Bc7 Ra7 Qe3 Kg4 Nc3 Qb8 Qf2 Qc8 Qf3+
2BR1bQ1/1pK1qb1N/qRQ2q2/3B4/1P2pPn1/1N2rrkr/2bB4/1b4rR w - - 0 1 illegal: No proof kernel
K2q1n1N/B1p1r2Q/4r3/q1RP3N/4NQ1n/1kPbr3/Rn1pB2n/R2qr3 w - - 0 1 illegal: No proof kernel
2N2R1q/2B2nrp/nQ6/N1p1RK2/2Pbn3/3B1b1Q/1bqR3P/nqk2qQ1 w - - 0 2 legal: proof: e4 d5 b4 dxe4 f3 a5 Ba6 axb4 Bd3 Qd7 Bf1 Qd8 Ke2 f5 Kf2 Ra5 Ke1 exf3 g3 f4 g4 Rf5 gxf5 b5 Kf2 Kd7 d4 Kc6 c4 g5 a4 e5 a5 e4 f6 g4 f7 b3 d5+ Kc5 d6 Kb4 d7 c5 a6 b2 a7 g3+ Ke1 f2+ Ke2 e3 Kd3 g2 Ke4 f3 a8R e2 Qd5 Kb3 Qf5 Kc2 Qg4 e1N R1a4 b4 Be3 b3 Qg3 Bg7 f8Q Nh6 Ra2 Nf7 Kf5 Bb7 Nc3 Na6 Bf4 Rg8 Nge2 g1B Bc7 Bd4 Qfd6 Rg7 Ne4 Qh8 d8Q Kd1 Qe8 b1Q Qb6 b2 Nc1 Nc2 Qc8 Na1 Nb3 Qc2 Na5 b1Q Bd3 f1Q Nd6 f2 Qe6 Bd5 Rf8 Bb2 Nc8 Bf3 Qh3 Kc1 Qg6 Qfd1 Qgg4 f1N Qgg3 Bgd4 Qg1 Ba3 Rb2 Nd2 Ra2 Ne4 Rb2 Qg2 Rd2 Qe1 Qf2 Qd1 Re1 Qf1 Qg1 Bab2 Re3 Qdc2 Ree2 Neg5 Re5 Ne4
1Bnnb3/1qNpq1N1/1knN1Q2/2RQ2Q1/4q3/R1bKn1r1/3P1pPb/2q4B w - - 0 1 illegal: Other
2bBQnk1/Pnrn2p1/B1b3P1/1Q1n4/1BN1Kb2/R2Rp3/2r2Q2/3nNr1b w - - 0 1 illegal: No possible last move, all moves rejected
3nR2B/Q3n2r/1QB3Nk/1n1PR2p/1b3Kq1/5b1P/npb1bR1n/B1n3N1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 e4 fxg4 Bb2 b5 Qd2 d5 Bc1 d3 Qe2 d4 Qd1 Ra6 Qd2 Rd6 Qd1 Rd5 exd5 Ba6 Bg5 Bb7 Bc1 Bc8 Kd2 Kf7 f4 Kg6 a4 h5 c4 e5 h3 b3 a5 b4 f5+ Kh6 c5 g5 f6 g3 a6 b2 a7 b3 a8Q e4 c6 g2 c7 e3+ Ke1 g4 f7 d2+ Ke2 g3 Kf3 e2 Ke4 e1N Qa5 d3 Qf3 Ba6 c8R Qh4+ Ke5 Nc2 Qa2 Nb4 Qa4 Na2 Qb5 Rh7 Qg4 Nc6+ Kf4 d1N Be3 d2 Nc3 b1B Qb6 Bb4 Nce2 Ndc3 Rh2 d1B Bd4 Bbc2 Re8 Ne7 Bh8 Nb5 Qa7 Nd8 f8B+ Rg7 Kf3 Qg5 Qgd4 Qg6 Ke3 Qg4 Nf4 Be2 Re1 Bf3 Nge2 g1N Rf2 g2 Ng6 Nec6 Be7 Rh7 Bef6 Ne7 Be5 Na3 Qdb6 Nb5 Ba1 b2 Qe6 Bfe4 Qc6 Nf3 Ng1 Nh2 Qcb6 Bf3 Bd3 Nd6 Bf5 Bae2 Bd7 Nb5 Bc6 Bed1 Ne2 g1N Nc3 Qe6+ Kf4 Qc8 Re5 Ne2+ Ke3 Nec1 Ne2 Qd7 Ng1 Bde2 Kf4 Qg4+
3B1bk1/1r2p2n/2r1PQN1/bKb1bB2/3PbprR/4Rb1B/N3r3/nN1Q4 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 h5 Ba3 a5 Bc1 axb4 f4 g5 Qc2 Qd5 Qb3 hxg4 Qd1 g3 Bb2 g4 Bc1 Qg5 fxg5 Rh6 Ba3 Rh5 Bc1 Rh8 a4 f5 h4 Kf7 e4 c5 Ke2 b5 d3 b3 h5 g2 a5 b2 h6 c3 a6 g3 a7 f4 e5 b4 h7 b3 Ra2 c4 Nd2 b1B Ra3 c2 Qe1 b2 Rb3 c3 Ra3 Bb7 Rh6 Nf6 Rh4 Rg8 Qd1 Nc6 h8N+ Kg7 g6 Nb4 e6 Nh7 Rb3 Rd8 a8B Bf3+ Ke1 Rd6 Be4 Rc6 Ne2 g1B Bf5 Bb6 B1h3 g2 Ra3 g1B Rb3 Bgc5 d4 Bc7 Ra3 Ba2 Nb1 Be5 Bd2 Bad5 Nc1 Bde4 Na2 c1R Kf2 c2 Re3 Nd5 Ba5 Nb4 Qf1 Re1 Bd8 c1B Qh1 Kf6 g7 Bd2 Ng6 Nc2 Qg1 Na1 Qh1 Rh8 g8Q Re2+ Kf1 Ba5 Qg7+ Kg5 Qh6+ Kf6 Qg5+ Kg7 Qf6+ Kg8 Qg1 Rg2 Qh1 Rg4 Kf2 Bg2 Ke2 Bef3+ Kd3 Be4+ Kc4 Bgf3 Na3 b1R Qd1 Rb7 Nb1 Ng5 Nbc3 Rh5 Nb1 Nh7 Bb6 Rhg5 Kb5 Rg2 Qe2 R5g4 Qd1 Rd7 Bc7 Re2 Bd8 Rb7+
B1Q1b1n1/N2Nb3/1R4R1/2R4p/BPnn1K1p/1p3q2/BQ4rP/1qbr1k1q w - - 0 1 illegal: No possible last move
1R1rR3/1bq3Q1/N1nn4/4nPB1/K2rBpPq/B5Qp/k2N1r1p/q1b4N w - - 0 1 illegal: No proof kernel
4r1K1/2r5/1R2b3/3rpQP1/q1N4p/QN1bpNRq/1BB2knP/b1n3nR w - - 0 1 illegal: No possible last move
3r3N/1QBB3k/3r2pn/2Nq1p1b/br2RKPp/1bR3P1/1nR1n2q/1Q1B4 w - - 0 1 legal: proof: f4 c5 b4 e5 d3 exf4 d4 cxd4 b5 Be7 b6 axb6 g3 b5 g4 Bh4+ Kd2 Bg3 hxg3 b4 Ke1 Qg5 Nf3 Qe7 Ng1 Qd8 Kd2 Kf8 e4 b5 c4 h5 a4 d5 e5 d3 c5 f3 Ke3 h4 a5 b3 c6 b2 c7 d2 a6 b4 e6 b3 a7 f2 Ra3 d4+ Ke4 d3 Qc2 d1B Qe2 d2 Kf5 Nh6+ Kf4 Kg8 e7 Nc6 e8R+ Kh7 Nf3 Bd7 c8Q Nd4 Rh2 Ba4 Ne5 Qd5 Qb7 Rd8 a8B Rd6 Nc3 b1R Ne4 b2 Qeb5 Bdb3 Ng6 d1N Be2 f1Q+ Rf2 f5 Nc5 Qg1 Re4 Rhd8 Nh8 Qh2 Qb4 Be8 Rg2 Bba4 Rc3 Bh5 Bb5 Bb3 Bd7 g6 Rgc2 Ne2+ Kf3 Ra1 Bf4 b1B Q4b5 Nb2 Be5 Rf6 Bc7 Ra4 Qd3 Re6 Qd1 B1a2 Qb1 Rb4 Ke3 Nd4 Kf4 Ba4 Qa7 Rf6 Bac6 Rd6 Qb7 Bc4 Bb5 Ba2 Be2 B2b3 Bd1 Ne2+
1nQ2Nrn/2bqb2r/1Bn2P2/1b4q1/3KQ3/k1p1N1R1/2PpQpB1/q1R3R1 w - - 0 1 illegal: No possible last move
bRBq2Kb/q2r3R/1B1pN2N/1k2P1Q1/2rnb3/n1p1p3/BN1P4/3r2Qn w - - 0 1 illegal: No proof kernel
B1QNkr1R/N5nq/1B1p1qp1/bn5N/3PqR1b/3QP2K/rp2Q2r/5n2 w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c4 hxg4 Bh3 b5 Nc3 b3 Nb1 b4 Bg2 Ba6 Bf1 Bb5 cxb5 Bd6 Nf3 Bc5 Ng1 Bf8 Kf2 f5 Kg2 c5 h4 d6 a4 b2 d4 f3+ Kg3 c4 a5 g6 a6 b3 b6 c3 a7 c2 b7 f2 e3 Nh6 h5 Qf6 Ne2 Nc6 b8N Be7 Bd2 c1B Ba5 Bd2 Nbc3 b1Q Bb6 b2 Nb5 Ba5 Bg2 f1R Nf4 Qe4 Qe2 Rf3+ Kh2 g3+ Kh3 Rf2 Rac1 Rf8 Rcf1 Bd8 Bf3 g2 Qd3 g1Q Rh2 Ne7 Nc6 Nd5 Bh1 Be7 Nd8 Nc3 Bf3 Qh1 Qe2 Rc8 a8Q Rc5 Na7 Nb5 Qd5 Rc4 Qe6 Ra4 Q6c4 Ra2 Qcd3 Rg2 Nfe6 f4 Ng7+ Kd7 Rf2 Nf5 Rf1 Rf2 h6 Rg2 Nh5 Ke8 h7 Ng7 h8Q Rf2 Bg2 f3 Qe1 Rc2 Qee2 f2 Qg8 Qff4 Qgc4 Bh4 Qc8 Qf6 Bf3 Qee7 Ba8 Qhe4 Rg1 f1N Rg4 Qef7 Rf4 Qg8 Rh1 Qh7 Qf3 Qg5 Ng3 Qf6 Kg4 Bg5 Rh2 Rf2 Qfe2 Qg8 Rh8 Bh4 Kh3 Qh7 Nh5 Rh2+
b1QBQ3/3rq3/nNpN1bR1/1b3n1n/K3R1pk/pr3qq1/1QPN2P1/5B2 w - - 0 1 legal: proof: f4 b5 e4 d6 e5 dxe5 a4 exf4 axb5 f3 Nh3 Qd6 Ng1 Qxh2 b4 h5 d4 e5 Kd2 Ke7 Kc3 Kf6 Kb3 g5 b6 a5 b5 f2 b7 h4 d5 g4 b6 c6 d6 h3 d7 a4+ Kb2 e4 d8Q+ Be7 Bd3 f1Q Ba6 e3 Q1d7 Kg5 Be2 f5 Bc4 f4 Be6 f3 Bb3 f2 Bc4 a3+ Kb3 Na6 b8Q Bb7 Ka4 Nf6 Q7c8 Ra7 Nc3 Qg3 Ne4+ Kh4 Qe8 h2 Nd6 Ba8 b7 e2 Bb2 Nh5 Re1 Bg5 Bf6 Rh6 Bd8 Bf6 Bb5 Rh7 Bd3 Re7 Bb5 Re3 Bc4 Rb3 Bb5 Qe3 Bc4 Qe7 Nf3+ Kg3 Nd2 Kh4 Rd1 e1Q Be2 Qg1 Bf1 Q1e2 Re1 Qf3 Re4 Qg3 Bc4 Qd1 Rhe1 h1N Bf1 Qdf3 Re6 Bc3 Rg6 Bf6 Re4 Nf4 Qbc7 Nh5 b8N Rab7 Qb6 Rd7 Bc4 f1B Qbb7 Rd3 Qb2 Rb3 Bb5 Qgf2 Be2 N1g3 Bc4 Nf5 Bb5 Rc7 Nd7 Q2g3 Nb6 Rd7 Bc4 Be2 Bd3 Bd1 Bf1 Be2 Nd5 Bc4 Nb6 Bb5+
b2rnQ2/2Qr1B2/KPNp2nR/5B1q/Pp4pq/N1Bq3k/rnQR4/4b3 w - - 0 1 illegal: No proof kernel
2brR1Kn/3Q2n1/Bp3k2/1p1P4/1R1q4/3Rrrbn/QBp1N2P/N1b1qN2 w - - 0 1 legal: proof: f4 d5 g4 h5 b4 hxg4 c4 e5 cxd5 exf4 b5 a6 Bh3 axb5 Bg2 Ra7 Bf1 Ra8 Kf2 Ke7 a4 f5 d4 c5 e4 g5 d6+ Kf6 d7 c4 a5 c3 a6 c2 a7 b6 Qe2 g3+ Kf3 g2 Ra4 Ba3 Rb4 Ne7 Qd3 Nbc6 Nd2 Ng6 Bb2 Re8 Ne2 g1B Bg2 Nh8 Nf1 Bf2 Qd1 Rb8 a8Q Ne7 Qa7 Bg3 e5+ Kg7 e6 Kf6 Qa1 Ra8 Qa2 Rb8 Ba1 Bc1 Bb2 Ra8 Ne3 Rb8 Rd1 Ra8 Bh1 Rb8 Nf1 g4+ Kg2 Ra8 Qb7 Ra3 Rd2 Re3 Rd3 Nd5 e7 Nc7 Qc6+ Ne6 Qb7 Rg8 e8R Ng7 Qba7 Bh4 Qb7 g3 Kh3 f3 Bg2 f4 Kg4 f2 Bh3 Ne6+ Kh5 g2 Kh6 g1N Kh7 f3 Qba7 Bg3 Qb7 Qc7 d5+ Qe5 d8N Qd4 Nc6 Ng7 Na5 Rf8 Bf5 Nh3 Qd7 Rg8 Nb3 Rf8 Nfd2 f1Q Na1 Qe1 Nf1 f2 Bg4 Rf7 Kg8 Rfe7 Qb7 Rd7 Bf5 Rd8 Qc7 Ba6 Bc8 Bb7 Qd7 Ba6 Nd2 f1R Bb7 Rff3 Bc8 Bb7 Nf1 Bc6 Ba6 Bb7 Ra3 Bc8 Rc3 Bc7 Rd3 Bg3
6b1/q2R3n/Pb1rP1kN/q2Q2B1/B5pr/2p1p1bN/2K3n1/1Rn1qRNQ w - - 0 1 illegal: No proof kernel
4K3/1B2B3/pQB4n/3q1Pr1/PrpbbQRN/kn2b1N1/3N1npR/q5q1 w - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b3 h5 b4 hxg4 bxc5 d5 Qc2 dxc4 Qa4+ Nd7 Qd1 Nb8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Ke5 Kb4 f4 g5 h4 b5 d4 e3 a4 e2 f5 e1N h5 a6 c6 g3 c7 g4 h6 g2 d5 g3 d6 Nd7+ Ke6 Nc5+ Kf7 e5 d7 e4 h7 e3 Qe2 Rb8 Ra3 Nb3 Nf3 g1Q Bb2 Bb7 c8B Bg7 Nc3 Bd4 Qd2 e2 Rh2 Nd3 Qf4 e1B Ne4 Bd2 Bg2 B2e3 Nfd2 Nf2 Bf3 g2 Ng3 Be4 Bb7 Qa5 d8Q Nh6+ Ke7 Rg8 h8N Rg4 Ng6 Rg5 Nh4 Qa1 Bc6 Rb6 Ke8 Qg1 Ra1 Rb8 Rd1 Rb6 Bc3+ Ka3 Qdd6+ b4 Qd8 Rb7 Qb6 Qd5 Ba1 Nc5 Bc3 b3 Ba5 b2 Bb4+ Ka2 Ba3 Nb3 Be7 b1Q Re1 Bc5 Re2 Bed4 Re3 Ka3 Rd3 Be3 Rd4 Qa1 Qd6 Bb1 Rg4 Be4 Qf4 Rb8+ Qd8 Rb4 Qb6 Bcd4 Bb7 Bd3 Bc6 Qa5 Bfd5 Be4 Bb7 Qc5 Bdc6 Qd5
2R4q/2B5/pb6/1QPb1r1N/r1nq1p1N/n1b1PQQK/r1kn1Np1/5BR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 b4+ Kc4 b6 g5 b7 d5 c3 f5 h5 f3+ Kh2 f2 b5 d3 h6 d4 h7 g3+ Kh3 d2 b6 g4+ Kg2 d3 Rh5 Bb4 Ra6 Nd7 b8N Ngf6 b7 Nb6 Nf3 Be6 Qa4 d1Q Qe8 Kb3 c4 d2 Nh4 Bd5+ Qe4 Bc3 Qf3 Kc2 Nd7 Ne4 b8Q f4 Ra4 Rf8 h8Q Rf5 Ra1 Nd6 Ba3 Nb5 Bd6 Na3 Bc7 Qe8 Qg7 Qh8 Kh1 g2+ Kh2 g3+ Kh3 g1B Nf6 g2 Qgg3 a6 Qe8 Rb8 Qb5 Re8 Rg5 Re4 Rg8 Qc1 Nd7 d1R Rc8 Qe3 Nf6 Qd4 Nd2 Rb1 Nh5 Rb2 Re1 Ra2 Rb1 Re6 Ne4 Rc6 Qa5 Rc5 Qb4 Ra5 Qb5 Ra4 e3 Ba5 c5 Nbc4 Be2 f1N Qg6 Bb6 Qgg3 Bf2 Rd1 Be1 Nf2 Bc3 Ra1 Nfd2 Rg1 Ndb1 Bf1 Nbd2
1K6/1n3N1P/k2qqrRp/2pQ2Bb/qb2r1BN/2np4/B1QrbPR1/7Q w - - 0 1 illegal: No proof kernel
rn1b3k/1n1n2qP/PQ3N1R/1r1q3b/2p5/2Q1BpB1/1bB1qp1K/2N3RQ w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 Kg2 Kf7 h4 c5 e4 b5 a4 g5 d4 Kg7 a5 f3+ Kh2 c4 a6 f2 h5 f4 e5 b3 d6 g3+ Kg2 b2 e6 g4 e7 b4 e8Q b3 d7 Ba3 d5 Nf6 Nc3 b1N d6 b2 Be2 Nd2 Rh3 b1Q Bf1 Qd3 Qe3 Bb2 Nge2 Nde4 Nd5 Nc5 h6+ Kg8 Rh2 Nb7 h7+ Kg7 Rh4 f3+ Kh1 g2+ Kh2 Qg8 d8B Nfd7 Nf6 Qgd5 Rh6 g1B+ Kg3 Rf8 Bc7 Kh8 Qe1 Qd1 Q3c3 Rg8 Be3 Rg5 Nc1 Qe2 Bh3 Re5 Qf1 Rf5 Qg2 Re5 Qh1 Bh2+ Kh4 g3 Bf5 g2 Kh3 g1Q Bc2 Qg7 Rb1 Nf8+ d7 Bf4 Ra1 Bg5 Kh2 Bh4 d8Q Bg4 Bd6 Bh5 Qb6 Rg5 Bg3 Nfd7 Nd3 Re5 Rg1 Rf5 Nc1 Bg5 Ng8 Bd8 Nf6 Qdf7 Qbd4 Rb5 Qb6 Qd5
bb1q1b2/1r3P2/1P1q1n1p/3Rp1nR/3q3K/rpR2N2/1N1Q1n2/k1BQB2B w - - 0 1 illegal: No proof kernel
4b2q/bN2Pk1N/2pr3r/Nqq1B2K/2Pn4/1rQQ1p1b/2BR2p1/1B1n1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 d4 exd4 Qd3 g6 Qf5 g5 axb5 gxf4 g5 Qf6 Qh3 Qd8 Qg4 hxg4 Kf2 a5 e4 f5 c4 d5 h4 f3 Kg3 c6 b4 a4 g6 f2 b6 d3 b7 d4 g7 a3 e5 a2 e6 d2 b5 d1Q b6 d3 e7 d2 h5 f4+ Kh4 g3 h6 f3 h7 Qd5 Nh3 Nd7 b8N Ngf6 g8B Qa4 b7 d1R Nd2 Qab5 Na6 Qdc5 b8Q Ne4 Rh2 Bg7 Bb2 Nc3 Nb3 Bd4 Qd6 Rb8 Ng5 Nf8 Na5 Bd7 Kh5 Ne6 Bd3 f1B Bc2 Bh3 Rd2 g2 Qd5 Bg1 Qd3 Nd4 Bd5 Rb6 Be4 Rb7 Rb1 a1Q Bf5 Rf8 Rc1 Rf6 Bb1 Bf2 Bc2 Rh1 Rf1 Nd1 Bc3 Rd6 Bb1 Qe5 Nc5 Rb6 Ncb7 Qec5 Ne4 Qab2 h8Q+ Kf7 Nf6 Be8 Nh7 Qa6 Nf6 Rb3 Nh7 Qab5 Qe5 Rh2 Qee3 Qa1 Bb2 Bg1 Qc3 Rh1 Qed3 Nc2 Qcd4 Qe5 Q3e3 Bg4+ Kg5 Rhh6 Qee4 Bh3 Qee3 Rhg6+ Kh5 Qa3 Qde4 Qh8 Be5 Rge6 Qc3 Ba7 Qe2 Nd4 Bfc2 Qac5 Qed3 Rh6+
2N4q/4ppr1/br3PNp/1qK2Q2/R1Q3R1/nB1Pk2r/Q2n1b1R/2Bq1n2 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 c4 e3 g4 b3 f4 b2 d3 h3 g5 h2 f5 a4 g6 a3 g7 e2 b6 e1R b7 a2 Ne2 Nf6 g8R Bh6 Rg3 Ne4 f6 Ra6 Rg2 Nd7 Nf4 Rb6 Nd2 b1Q Ng6 Qb5 Rg4 Ne5 Bh3 Rg1 b8Q+ Ke6+ Qd6+ Kf5 c5 Ba6 c6 Nc4 c7 Na3 Nc4 Nd2 Qb3 Qa8 Qdb4 Be3+ Kc3 Bf2 c8Q+ Re6 Nb6 Nf1 Nd7 Rb6 Q4c4 Qf3 Bg2 Qd1 Bd5 Rg3 Qb1 Rh3 Qb2 Rg8 Q8c5 Rg7 Qb1 Rd6 Nb6 h6 Nc8 Rb6 Rhg1 h1Q R1g2 Qg1 Rh2 Qg3 Qb2 Qb8 Qc2 Qe8 Q5b5 Qh8 Kb4 Qb7 Qc7 Qc6 Bb3+ Qd5 Q7c4 Qe5 Rb1 a1N Qa2 Qd5 Ba4 Nb3 Ra1 Nbd2 Bb3 Nab1 Qac2 Qe5 Ra4 Na3 Qa2 Rc6 Rd4 Kg5 Qbd5 Rb6+ Kc5 Qf5 Nf4 Kg4 Ng6+ Kg3 Qe5+ Kf3 Qed5+ Ke3 Rg4 Qd7 Qf5 Qb5+
1q3rnq/1R1P1K2/B1pBN1nb/2Q1pQ2/2b5/1Rp2rb1/Rn4P1/N1qN1k2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 b4 h5 Kg6 e5 f4 a5 d3 c3 f5 a4 f6 e3 f7 h3 b6 h2 b7 a3 b5 a2 b6 c6 Qf3 e2 Na3 e1B Qf5 h4 Nh3 Nd7 b8R Bg3 b7 Bh6 Nf2 h3 f8N Ra4 Rg1 h1Q Nd1 h2 Kf7 Qb6 Rb1 a1Q Rb3 Qc7 Bg5 Qc1 Be7 Ra7 Ra8 Qb8 Bd6 Ra4 Nh7 Rc4 Ng5 Nf8 Ra4 Ng6 Nc2+ Kd5 Rab4 Rf4 d4 Rf3 Ba6 Bd7 Rb5+ Kc4 d5 Bc8 Re1 Bd7 Re4+ Kd3 Ra4+ Ke2 Ra2 Kf1 Na1 Bc8 Qf6 Bf5 Ne6 Bd3 Qf5 Bc4 Rb6 Qg1 R6b4 h1N Rb5 Qh2 R5b4 Qa8 b8Q Nf2 Qb5 Qb8 Qc5 Nd3 Rb7 Qh1 Bf8 Qh4 d6 Nb2 d7 Bhf4 Nf2 Nf6 Bd6 Rf8+ Kg7 Ng8 Nd1 Rd8 Qe4 Qh8+ Kf7 Bh6+ Qf5 Rf8+
bK4k1/3pn3/N1rBR2P/Nr1B2P1/n2qp1pb/3R2qR/2B1rn2/2q1Q2Q w - - 0 1 illegal: No proof kernel
K3Q3/1Q1pP2q/p6p/1r1Qr3/3RRbrq/2qn3N/P2Bb1NB/k1Nn1n2 w - - 0 1 legal: proof: e4 c5 d4 e5 b4 f5 h4 g5 Bd3 gxh4 bxc5 exd4 e5 Bd6 Be4 fxe4 Rh3 Be7 Rh1 Bf8 Ke2 Ke7 g4 Ke6 c4 b5 f4 b4 c6 a6 g5 e3 Kd3 b3 c7 h6 g6 e2 c5 Kd5 c6 e1R g7 h3 e6 h2 f5 b2 f6 Bd6 f7 Rh7 f8B Bb7 c8N Re5 c7 Ne7 g8Q Nbc6 Nh3 Nf5 Nd2 Qh4 Re1 h1Q Nb3 Rb8 Bd2 Ne3 Nc1 Nf1 Re4 Rg7 Nb6+ Kc5 c8Q Rg4 Nd5 Qf3+ Ne3 b1Q+ Qc2+ Kb5 Qe8 Qff6 Ng2 Nb4+ Ke2 Bd5 Qc7 Ka4 Qb7 Ka3 e7 Kb2 Bg7 Bb3 Qgd5 Nd3 Bh8 Bc7 Bg7 Qc6 Kf3 Qc3 Bh8 Reg5 Be5 Qbc2 Bg3 Bf4 Bh2 Re5 Rb1+ Ka3 Rb2 Bc4 Rb4 Bb5 Rc4 Kb2 Ra4 Ka1 Rc4 Nb4+ Ke2 d3+ Kf3 Q3b2 Rcd4 Qbc3 Qc7 Q2b2 Re1 Be3 Rf4 Qc4 Bc3 Rc8 Qcb7 d2 Re2 d1N Bd2 Qcc3 Re1 Reg5 Ke4 Qh8 Re2 Qbc3 Re1 Rc6 Re2 Rb6 Re1 Rg7 Kf5 Rg8 Rd4 Qh7+ Ke5 Bd3 Re2 Rb5 Kd6 Bf4+ Re5 Bc4 Kc7 R8g5 Kb8 Be2 Ka8 Nd3 Ree4 Re5
QN1rq1B1/R1p1b1n1/b2N4/2K1R2p/2qpR3/n2b2rP/N1QPqn1k/B7 w - - 0 1 legal: proof: c4 g5 a4 b5 axb5 d5 Ra2 dxc4 Ra4 Bg7 Ra1 Bf8 f4 gxf4 Qc2 e6 Qd3 e5 Qd4 exd4 Kf2 Kd7 b4 Ke6 e4 Ke5 g4 h5 g5 f5 g6 a5 h3 a4 g7 a3 b6 c3 b7 f3 b5 Kf4 b6 c2 e5 a2 e6 Ne7 g8Q Ra3 Bc4 Nd7 b8N Ne5 b7 Qe8 Bb2 c1Q Qg6 Rg8 Bb3 Qc4 Nc3 Nd3+ Kf1 f2 Ke2 Ra8 Nb5 Rg7 Re1 a1N Nd6 Nc2 Ba1 Na3 Qh7 Kg3 Ba2 Nc6 e7 f4 Qe4 Nd8 Qf5 Qea4 e8R Ne6 Bb3 Rg8 Qh7 Ng7 Re4 Be7 Ba2 Qcc2 Re5 Rd8 Bg8 Qe8 Qe4 Qa2 Qc6 Ra5 Qc2 Qc4 Re4 Rg5 Re5 Kh4 Kf3 f1B Ke4 Kg3 Ne2+ Kg2 Nc1 f3 Na2 f2 Rg1+ Kh2 Rg3 Qca4 Kd5 Bf5 Rg1 Rg3 R1e4 Be2 Rd1 f1Q Rb1 Nf2 Kc5 Qd1 Rb5 Bc8 Ra5 Bd3 Ra7 Qg4 Nc6 Qa6 b8Q Qe2 Qa8 Qa4 Nb8 Bca6 Nc6 Qb3 Nb8 Qc4+
1nr2qRQ/2pn1N1p/1B1q1Q2/1RPQpb2/3b1Pr1/1N1qn3/4B1b1/1R2K1k1 w - - 0 1 legal: proof: g4 d5 h4 b5 e4 dxe4 a4 f6 g5 fxg5 axb5 gxh4 Qf3 h3 Qh5+ Kd7 Qd1 Ke8 d4 Kd7 c4 Kd6 b4 e5 f4 a5 b6 g5 d5 h2 b7 e3 b5 Kc5 d6 a4 d7 e2 b6 g4 Ra3 g3 Ra1 g2 Ra3 Nf6 Rb3 a3 Rf3 a2 Nh3 a1N Qa4 Kd4 Ba3 g1Q Qc6 Qg7 Rb3 Bc5 Rb5 Ke3 Qd5 Qgf8 Nd2 Rg8 Nb3 Bd4 Bc5 Rg4 Ng5 Qd6 Rg1 h1B Nf7 Q8f8 d8Q Bf5 Rg2 Nfd7 Qf6 Na6 Rg1 Rc8 b8R Bg2 Ra8 Nab8 b7 Bd3 Bb6 Bf5 Qc5 Kf3 Qd5+ Kg3 c5 Nc2+ Kd2 Ne3 Ke1 Kh2 Ra1 Bge4 Rg3 Bg2 Rb1 Na6 b8Q Kg1 Qba8 Nab8 Qac6 Rh4 Rg5 Rg4 Qh8 Qde7 Qcf6 Qd6 Kd2 Be6 Rg8 e1Q+ Kd3 Qa5 Ke2 Qa3 Ke1 Bf5 Be2 Qa6 Rb4 Qc4 Rb5 Qd3
R2nK2B/b1pR1BP1/Rq1Nb3/NQ2P2q/1q1rn2p/rQ2n1r1/3p1N2/4k3 w - - 0 1 illegal: No proof kernel
2b5/1pqPp3/2B5/NrK1Q1b1/1PB1qNrk/Q2R4/q1nR2p1/n2rNbR1 w - - 0 1 illegal: No proof kernel
K3N1BB/P2R3Q/rBk5/2pn1rP1/pQ3R1p/q1bRqnb1/N5n1/1b2r3 w - - 0 1 illegal: No proof kernel
2QB3N/p1qB4/1P2Pbq1/4rnkN/3pr3/Kr1b1qpR/Bn3R2/b4Q1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kf6 h4 d5 c4 g5 Kc2 d3+ Kb3 f3 c5 d2 b6 g3 b7 g2 c6 f2 c7 g4 h5 g3 h6 Bg7 h7 Kg5 e5 f5 e6 f4 Ra2 f3 Ka3 Ne7 b4 Nf5 b5 Nc6 b8Q Ne5 Rb2 Nd3 Rb4 Bf6 Rbh4 Ba6 c8B Qc7 Rf4 Nb2 Ne2 g1B Rh3 Rf8 Bg2 f1Q h8N Bgd4 Nbc3 f2 Bd7 Rg8 Qf8 Rb8 Qc8 Rb7 Qe1 d1R Bh1 Qg1 Qf1 Re1 Nd1 Bc3 Bg2 d4 Bd5 Qg2 Bc4 Qf3 Ba2 Qh5 Be3 Qg6 Bd2 Rg7 Be3 Rh7 Bd2 Rh5 Rf3+ Kg4 Nf4 Kg5 Be3 Rh4 Nh5+ Rf4 Bd2 Re5 Be1 Rfe4 Rf4 Na4 Rf3 Ba1 Ba5 Nb2 Rf4 Qc2 Bd8 Qc7 Rf3 Rb6 Rf4 Rc6 b6 Bd3 Qe2 f1Q Nf2 Qg2 Nh1 Qf3 Qf1 Rcc5 Qe1 Rb5 Qf1 Qe2 Rf2 Qf3 Qd1 Rb4 Qf1 Rb3+
Q1b3R1/p1r1p2P/pb1r2PR/Q4r1N/nR1B3k/2q4B/4q3/KnqQ1b1N w - - 0 1 illegal: No proof kernel
b2N1b2/1nrk2n1/4rQK1/B3pB2/pr4n1/2PpR3/nQqnN1PR/5NR1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 f4 d5 b4 h5 b6 a5 b7 h3 b5 d3 Ke3 h2 f5 d4+ Kf2 d2 Kg3 d3 b6 e3 f6 a4 Kh4 e2 Kg5 e1N Bb2 h4 Be2 h3 Bf3 Rh4 Ra3 Ra6 Ba1 Nh6 Ne2 Nc6 b8N Nf5 b7 Na5 Nc6 Ng7 b8Q Qc7 f7+ Kd7 Bc3 Rb4 Be4 Nb7 Kg6 Nf3 Qf1 d1N Ra1 Nd2 Qf6 Ra7 Re1 h1R Nd8 h2 Rg1 Ra6 Bf5+ Re6 Re1 Ne4 Bd2 Ndc3 Rg1 Qc5 Be1 Qf2 Nd2 Na2 Nf1 Qc5 Bc3 Nd2 Re1 Qc4 Bd4 Qb3 c3 Qc2 Bc5 Nd6 Be3 Bb7 Bb6 Ba8 Ba5 Nb7 Rb1 Bd6 f8R Bc5 Rh8 Bd6 Ne3 Bf8 Rge1 Rf1 Rh7 h1N Rh2 Rff4 Nf1 Nf2 Rbc1 Ng4 Ra1 Nc5 Rad1 Rbc4 Qb2 Nb7 Ng1 Qc1 Re3 Rc5 Ne2 Re4 Nfg3 Qc2 Rg1 Rc7 Nf1 Rb4
Q1n5/B1K3QN/4r2p/1pP1RRnN/2P1n2q/2r2B1b/2R1p1n1/n1bbN2k w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 axb4 h5 c5 dxc5 g6 Ne2 gxh5 Ng1 h4 Kd2 Kf7 Ke3 Kf6 Kf4 d5 c4 b5 g4 e5+ Ke3 Kg5 a4 d4+ Ke2+ e3 Kd3 Kf4 a5 h3 a6 b3 g5 b2 f3 Kg3 Ke4 h2 f4 d3 a7 d2 f5 e2 g6 e1N g7 Nh6 g8N Nf7 f6 Bh3 Nf3 Ng2 Nc3 b1N Be2 Nd7 Kd5 e4 Kc6 e3 Ra2 Bh6 Nd5 Nb6 Ne1 Ng5 f7 Na3 f8R Nc2 Ngf6 Na1 Rc2 Nc8 Bf3 e2 Nf4 Qd4 Rf7 Re8 Kc7 Re6 N4h5+ Kf2 Rg1 h1N Bb2 Qe4 Be5 Qh4 Qb1 d1B Qb2 Ng3 Re7 Rb8 a8Q N3e4 Rh1 Rbb6 Re8 Rbd6 Rf1+ Ke3 Bg3 Rd3 Rf2 Rc3 Re7 Rd6 Re5 Re6 Rf1 Bg7 Bh2 h6 Nh7 Bh8 Bg4 Bf6 Rff5 Bg7 Bf3 Kf2 Bg3+ Kg1 Bf4 Re3 Qd4 Kh1 Qd7 Bf6 Qg7 Rc3 Bd2 Rd3 Ba5 Rc3 Bb6 Be7 Ba7 Bf6 Rd5 Bd4 Rde5 Be3 Rd2 Bf4 Rc2 Bc1
nB1r1RRr/2rrb1QB/q2b1p2/3p1Nr1/1Q3K1P/1b1Q4/pP4B1/k2N1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 c4 Kc5 h4 Kb4 c5 g5 c6 a5 c7 f6 e5 a4 b6 a3 e6 d3 e7 g3+ Kf3 g4+ Ke4 g2 e8Q f3 b7 g3 Qh5 d2 Ra2 f2 Qdg4 Kb3 Ne2 d1R Qg7 g1B Bh6 g2 Bf4 Ne7 Qgg4 Nf5 Qe8 Ne3 Rh2 Na6 Qeg6 Be7 b8Q+ Kc2 Ra1 a2 Rh1 d6 Qh3 Be6 c8B Qa5 Qb4 Bb3 Nbc3 Nc7 Qg7 Qa6 Bf5 Rad8 Bh7 Na8 Ng3 Rd5 Re1 Rd2 Bb5 f1R Nd1 Kb1 Nf5 Ka1 Bc6 Rff2 Qhg3 Nf1 Qd3 Rc2 Bg3 Rfd2 Kf4 Bc5 Bb7 g1R Bg2 d5 Re6 Re2 Rb6 Re6 Rb8 Red6 Rh3 R8d7 Rf8 Rd8 Bh2 R6d7 Rg3 Rc3 Qf7 Rc2 Rgg8 Rc1 Qg7 Rc3 Bh1 Rg5 Be4 Bd4 Bh1 Rcc7 Bg2 Bdc5 Kf3 Ra7 Bb8 Rac7 Kf4 Bcd6+
nN1bQR1R/6bQ/1K1p4/R2N1b2/3Q2P1/2bPpb2/p1r1nkBB/q3r1r1 w - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 g5 h4 gxh4 c5 b5 axb5 Nc6 Ke2 Nb4 c6 Nxc6 Ra6 Nb4 Ra1 Nc2 g4 Kf7 f4 Kf6 b4 e5 b6 h5 f5 Kg5 b7 Kf4 b8Q Kg3 f6 a5 d3 c5 f7 a4 b5 d6 b6 e3 b7 c4 Nc3 e4 Ba3 h3 Bg2 h4 Nf3 h2 Qb1 h3 Ne5 Qa5 Qb2 Ne7 Rae1 Bf5 Reg1 Bg7 f8Q Nd4+ Kd1 e2+ Kd2 e1B+ Ke3 Ne2 Qf7 Rc8 Nb5 c3 Qb4 c2 Nc6 Bec3 Bb2 a3 Rd1 c1B+ Rd2 Re8 Nc7 a2 Qd4 Qe5 Nd5 Ra3 Re1 h1R Qba7 h2 b8R Rb3 Ra8 Rb7 Nb8 Rg1 Rf1 h1B Rf4 Rc8 Qe8 Rc5 Ba1 Rb1 Qad7 B1b2 Ra5 Rbe1 Rf2 Bg6 Rf8 Bf5 Bf1 Bf3 Bg2 Nc8 Qa7 Nb6 Rd1 Bf6 Qh7 Bd8 Rh8 Na8 Rb1 Ba3 Rb7 Qg7 Rf7 Nc7 Rff8 Bab2 Qda4 Be5 Qd4 Bef6 Kd2 Bc3+ Kc2 e3 Kb3 Kf2 Ka4 Bd2 Bb2 Rc2 Ba1 Bc3 Bb2 Ne6 Kb5 Nc7+ Kb6 Qh6 Ba3 Bg7 Bb2 Qf6 Qf4 Bb4 Be5 Bc3 Qb4 Bd2 Bh2 Qa1 Qba4 Bdc3 Qd4 Na8+
1bR1r1r1/n2bb2k/b1pN1B1N/2n3P1/2KR1RB1/2pp4/2r1PQbq/BQ6 w - - 0 1 illegal: No proof kernel
3Q2nN/2nRR2N/rP5Q/7p/pBB2Bbp/3K2Pn/1R2b1n1/krbnq3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kd6 b4 Ke5 c4 d5 g3 h5 c5 a5 c6 f5 b6 a4 c7 d3 b5 Kd4 e5 f3 b7 f4 e6 f2 e7 f3 e8R Bh6+ Re3 Bg4 c8Q Qa5+ Nc3 Ra6 Be2 f1B Qb3 f2 Qd7 Bg2 Ra2 B2f3 Nh3 Bf4 Ba3 f1N+ Kd1 d2 Kc2 d1N b6 Nf2 Re7 Bc1 Ng5 Nh3 Nce4 Qe1 Rb2 Rh6 Qbb5 Rd6 Nh7 Re6 Bc4 Ne3+ Kb1 Re5 Neg5 Kc3 Qd8 d4 Nf7 d3 Nh8 d2 Qc6 d1N Qh6 Rb5 Rh2 Rb3 Rd2 Ng2 Bc5 Nd7 b8B Ndf6 Bf4 Ne8 Rdd7 Nc7 Bce3 Kb4 Kc2 Ka3 Bd2 Rb5 Rb3+ Ka2 Kd3 Ka1 Rb2 Rb4 Rc2 Rb2 Bb4 Rb1 Rb2 Be2+
2n3bQ/7B/p2Kb1b1/Q3rR2/b1B1q2k/3PrnpN/Prp4R/N3B1bN w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 Kf2 Ke7 h4 Kf6 e4 g5 c6 b5 h5 f3 Ke3 c3 c7 a6 h6 g3 h7 g4 Kf4 g2 Bb2 f2 Ne2 g1R Rh3 b4 Ba3 b3 Qc1 b2 Bg2 f1B Rh2 g3 Nd4 Nd7 Qe1 Ne5 Nb3 Be6 c8B Bb5 Bb4 Qd3 Bf1 Nf3 e5+ Kg6 Bb7 f5 Be4 Bc5 Be2 Qc2 Bc4 Ne7 Bed3 Rhg8 h8Q Rge8 Ba5 Bg8 e6 Nc8 e7 Ba4 Bb4 Rb8 Qee5 Bb6 Qa5 Re1 Be4 Rd8 e8N Rd3 Nc7 Bg1 Ne6 Rde3 Ng5 Qd3 Nh3 Qd4 Na3 b1B Nb5 Bd3 Rb1 c2 Nd6 Rb5 Rc1 Re5 Ra1 Rb1 Bc3 Rb2 Rf1 Qd5 Na1 Qb7 Bb4 Qh7 Bc3 Kh5 Rff2 Kh4 Rf1 Be2 Bed3 Be6 Ne4 Bg8 Nef2 Be6 Be4 Bd3 Nh1 Bg8 Bb3 Bdc4 Rff2 Bce6 Bc4 Ng5 Re2 Reb5 Bcd5 Rc5 Ke5 f4 Re1 f3 Rf1 f2 d3 Rcb5 Re1 f1B Bb4 Be2 Rf1 Bh5 Be1 Rb8 Bc4 R8b5+ Kd4 Qb7 Bh7 Rbe5 Rf6 Bg6 Rf5 R5e4+ Kc5 Nf3 Bb3 Re5+ Bd5 Nb6 Kd6 Qa8 Bb3 Qe4 Bc4 Nc8+
4nR1b/4q1rp/P5pp/1B1N4/3P1NNk/B1QB1Qn1/2n3bK/b1r1R1nn w - - 0 1 illegal: No proof kernel
rn3k2/Rr3P1R/2Qp1PKb/1pQ4N/n1bQ4/1q2N3/2rR1prB/1b1B3r w - - 0 1 illegal: No proof kernel
nn1N4/1N1BqP2/p2Bn3/n1p1RQ2/1n2N1B1/P2r3R/kbKpb1Q1/1r5b w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 b5 d3 bxc4 Be3 cxd3 Bh6 Nc6 Bc1 Nb8 Kd2 Kf7 g4 d5 b4 e5 f4 h5 f6 Ke6 a3 c5 b5 e4 b6 d4 g5 Kd5 b7 Kc4 g6 a6 f5 e3+ Ke1 e2 Kd2 e1N f7 h3 g7 h4 f6 h2 Nc3 h3 Ne4 Qe7 Ra2 Ng2 Qe1 Kb3 Nf3 Bg4 Nh4 Nf4 Rc2 Be2 Bb2 Ka2 Qc1 Ne6 Qd1 Rh5 Rc1 Rd5 Nf5 Rd7 Bg2 Ra7 Re1 h1B Nfd6 h2 Rc3 Rd8 Kc1 d2+ Kc2 Rd7 Qc1 d1N Rh3 Nc3 Qg5 Na4 Bf3 Nb6 Qg2 Na8 Bg4 Rd8 Bc1 Rd7 Bf4 d3+ Kc3 d2 Kc2 Qe8 Bg3 Ne7 g8B Bg7 f8Q Nec6 Bh7 Bh8 Bhf5 Qe7 f7 Bb2 Qc8 Na5 Be5 Nbc6 b8N Rab7 Bf4 Rb5 Nb7 Rd3 Bd6 Rb6 Nd7 Nb8 Ne5 Bc1 Nc6 Rb1 Ncd8 Bb2 Qf1 Bhf3 Qd7 h1N Qg2 Nf2 Qc8 Nec7 Bd7 Ne6 Qf1 Bh1 Qg2 Rd4 Rf1 Nd3 Rf5 Ne5 Rg5 Nec6 Re5 Rd3 Be8 Nf4 Qf5 Ne6 Bd7 Nb4+
2RQ1N1k/K3P1bp/Rbp1pQ2/q1BQn2r/3P4/BB2bNb1/1r2n1r1/7b w - - 0 1 illegal: No proof kernel
7N/2bPb2R/K1Rrp1pp/N1qBBRQ1/2QnbP2/3N4/rb5n/b1n4k w - - 0 1 illegal: No proof kernel
B4NKB/3p4/1nr1rQ2/1P4np/knr1pN2/2rbRRR1/3P1Qb1/1qr1B3 w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 c3 fxe4 Ba3 g5 Bc1 gxh4 Bb5 b3 Bb2 Bg7 Ba4 b5 Ba3 b4 Bc1 b2 Bb5 b3 Bf1 Be5 Rh3 Bd6 Rh1 Bb4 cxb4 Bb7 Be2 Ba6 Bf1 Bc8 Ke2 c5 Ke3 h5 Kf4 e5+ Kf5 c4 Kg6 c3 Kg7 c2 g4 e3 a4 e2 f4 e1R a5 h3 a6 h2 a7 Ke7 f5 Kd6 g5 Kc6 g6 Qg5 b5+ Kb6 f6 Qh4 f7 Kc5 f8B+ Ne7 Bg2 Kb4 Nc3 b1N Bb2 c1R Nh3 Qe4 Rf1 h1R Qf3 Nc6 Na4 Nc3 Nc5 Bb7 Nf4 Rh4 Ra3 Rh6 Qf2 Ned5 Be7 Rc8 a8Q Nb6 Qa6 Qb1 Bh1 Rc7 Kg8 Ne4 g7 Ng5 Bf6 Rc3 Nce6 Rec1 Nf8 Rc8 Ba1 b2 Re1 Re8 Re3 Re6 Bg2 Nd4 Bh1 Nc2 Bd8 Be4 Bc7 Bd3 Ba8 Bf1 Bd8 Bg2 Bc7 Rec6 Bd8 Rhe6 Rf3 R3c4 Rae3 e4 Bf6 Rh3 Bd8 Nf7 Bh4 Ng5 Bg3 Nc8 Qb6 Ka4 Qd8 Nb4 Qf6 Nb6 Qg6 Rhh1 Qe2 R1c3 Kh8 Nh3 g8R Rhc1 Be1 Rd3 Qf2 Rb3 Qf7 Ra3 Rgg3 Ng5 Qg7 Qc2 Qg6 b1B Kg8 Qb3 Bf6 Bd3 Bh8 Qb1 Qf6 Rac3
1RN4Q/2rp1pRK/3Pn1r1/B2pq1r1/2B1Nb2/4bP1R/2kb2Q1/3Nbn1b w - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 d5 hxg4 d6 e6 Qd5 exd5 a4 cxb4 axb5 Qb6 Kd1 Qa5 Ke1 Qd8 Kd2 g5 Ke3 a5 c4 g3 h4 g2 c5 b3 f3 a4 b6 g4 Kf4 b2 Kf5 a3 e4 g3 e5 a2 c6 Qe7 h5 Ra7 b7 Bh6 c7 Nc6 b8N Bd2 e6 Rh6 Bd3 Nd8 Na6 Kf8 Be2 Kg7 Nc5 Ba6 c8R Nf6 Rh4 Rg6 Ne4 Rc7 Nbc3 b1R Bf1 Ng4 Nb5 Nh2 Ne2 g1B N2c3 g2 Rb8 Bge3 Na7 g1B Bc4 Bf4 Rh3 Bge3 Nd1 Nf1 Nc8 Rb4 Rb1 a1B Ba3 Qe8 e7 Ne6 Bc1 Be1 Bd2 Bc3 Rb2 Qh8 e8Q Kh6 Qg8 Bb5 Bc1 Bcd2 Rc2 Qa1 Ba3 Rb2 Bb4 Rg5+ Kf6 Ra2+ Ke7 Qe5 Ba5 Ra4 Qe8 Kg7 h6+ Kg6 h7 Kf5 h8Q Qc3 Qh4 Rh5 Bd3 Ng3 Na7 Bc1 Rd2 Ra2 Be2 Ke5 Rh1 Qb2 Rc2 Kd4 Kf6 Qc3 Bd3 Rb2 Rch2 Rg2 Qg5 Bcd2 Rg1 Qa1 Rh3 Qb2 Bc2 Bf1 Bb3 Qc3 Qeg8 Kd3+ Qe5 Qd4 Bc4+ Kc2 Nc8 Rh6+ Ke7 Qc3 Qeh8 Qe5 Qg6 Rh2 Qgg8 Bg2 Ke8 Nf1 Qg5 Ng7+ Kf8 Bh1 Kg8 Ne6 Rgg3 Rf6 Kh7 Rg2 Qg6 Rg1 Rg2 Rf5 Qg3 Rf6 Qh2 Rf5 Rg7 Rg6 Qg2 Rfg5
K1b2nQR/2P1r3/1Q1n3b/1NNP1kp1/2Qn1B1n/5pRq/pR4rn/4rB2 w - - 0 1 illegal: No proof kernel
1B1qQ1b1/bbP2BR1/k1K2pP1/p4r2/3R1n2/Qb1p2n1/b1Qr4/2n1NR1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 f6 Kd5 f3 e4 h3 g4 d3 b4 h2 c4 h4 e5 f2 g5 d2 c5 h3 c6 Rh5 g6 Rf5 b6 Na6 b7 Bc5 b8Q Ba7 b5 Nc5 b6 Nb3 Bc4 f1B Qc2 d1B Bf4 Nc1 b7 Ne7+ Kd6 Bg2 e6 Nd5 e7 Bf1 Bg3 Nf4 Nc3 Bg2 Ra3 Bd5 Nf3 Bg8 Rf1 h1B Ne4 h2 Ra4 Bg2 Qc7 h1N b8R Bh3 Qb2 Bb3 Qa3 Bg4 Bh2 Ng3 Nf2 Ba2 Ne1 Bd1 Rb5 Bdb3 Nh1 Rb8 Re5 Rb6 Kc5 d5 Re3 d4+ Bd5 d3 Rd4 Ngh5 Rh3 Ng3 Rh7 Ba4 Rg7 Rb2+ Qb6 B4b3 Kb5 Bge6 Qbc5 Rd2 Qc2 Bg8 c7 Kd7 Bg1 Bb7 e8Q+ Kc8 Be3 Ba6+ Kc6 Bac4 Bf7 Be6 Bg1 Bd7+ Kd6 Kb7 Be3 Ka6 Bf2 Bc8+ Kc6 Bc5 Rc4 Be7 Ba7 Bc5 Bb8 Ba7 Rd4 Bb7#
2Rq4/1QP2BbK/rpN1QBn1/Rb1B2N1/b1rr2p1/2Pn3p/2r2N2/k4r2 w - - 0 1 illegal: No proof kernel
2B3r1/2pbr1N1/1P1R1b2/QP2NQpK/3p1RR1/4B1n1/n1bbr1Qq/3k1b2 w - - 0 1 illegal: No possible last move
b1rQ3r/QP1K3R/rN2B1Qb/1bN2p2/2q3r1/R2rBp1P/2R1pnk1/7n w - - 0 1 illegal: No possible last move
Brb2Qq1/1pB2Nbb/1P1NR1QR/rn4rP/p1bR4/3np1k1/8/1K1Q2b1 w - - 0 1 illegal: No proof kernel
K1QB1n2/P1n4b/q1B3Nb/pr2R3/r2Q2pp/3N2Rr/2B3NP/1n2n1nk w - - 0 1 illegal: No proof kernel
6rr/p2Q1Rn1/1NRBN2Q/1bp2n2/2N1bbbb/PB3P1p/K4q2/3B2rk w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 gxh4 c6 d6 c5 dxc5 d4 Kf7 Kd2 Ke6 Kc3 Kd5 Kb2 b5 g4 e5 c7 h5 a3 h3 g5 h2 g6 e3 g7 Ke4 d5 h4 d6 b4 d7 e2 Qe1 b3 Qa5 e1B Bg5 h3 Qa6 Bd6 Bb5 Ne7 g8B Qf8 d8Q Nd7 Bd2 Nf5 Bf4 Nf6 Qd7 Ne8 Bgc4 Neg7 Ne2 Kf3 Nd4+ Kg2 Rf1 h1B Nd2 e4 Rd1 e3 Ba4 e2 Ne6 Rb8 Kb1 b2 Bcb3 Rg8 Bg3 Bf4 Nc4 Rh8 Ka2 b1B+ Kb2 Bc2 Rd6 Be4 Ka2 Bc6 Bd1 Bb5 Rc6 Qf6 Bab3 Qf7 Qd2 Bd7 Qa4 Rbg8 c8N Qf8 N8b6 Bc8 Bh4 Kh2 Bg5 Be4 Be7 Qf6 Bd6 Qd4 f3 Bh4 Rg1 Qf2 Rg6 e1R Rf6 Rf1 Rf7 Rg1 Qa6 Bd7 Qb7 Be8 Qd7 Kh1 Rf6 Bh5 Rf7 Bc2 Qe3 Bg4 Qd2 Bfg3 Qg5 Bf4 Qh6 Be4+
1N1rbq1n/p1B2rp1/3r3b/3n2K1/nN2R2B/k1Nr3R/P3P1pQ/Q5Qr w - - 0 1 illegal: No possible last move
2Rr1N2/5RK1/2b1Q1rQ/pkp2Br1/1bbn1p2/3n1q2/P2N1PBR/n3Bn2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 h3 g5 h4 gxh4 Kd2 d5 Kc3 Kd7 Kd4 Kc6 e4 h5 g4 a5 b4 f5 e6 c3 Ke5 h3 e7 h4 e8Q+ Nd7+ Ke6 h2 Kf7 c2 g5 h3 g6 d4 e5 f4 g7 d3 e6 d2 e7 Ba6 Qe2 d1N Qh5 Ne3 Nd2 Rh6 b5+ Kb6 Qh4 Nc5 Bg2 Nd3 Ne2 Nf1 Nd4 Qd5+ Ne6 Qf3 Rb1 Rd8 Qd7 c6 e8Q Bb4 Nf8 Ne7 g8B c5 Bh7 Nc6 Bf5 Nd4 Kg7 Rf6 Ba3 c1N Qh6 Ncb3 Qeg6 Na1 Qe6+ Kb7 b6 Bc4 Rb3 Ka6 b7+ Kb5 b8R+ Ka4 Rg1 h1R Rc8 h2 Bb2 Kb5 Bc3 Ng3 Re1 Rg1 Re5 h1B Rd5 Rf1 Rd7 Rg1 Rf7 Nf1 Ne4 Rd5 Be1 Rd6 Nd2 Rd8 Bgh3 Rg5 Rc3 Qh5 Ra3 Bc6 Bg2 Ne5 Rg3 Nd3 Rh3 Qf3 Rh2 Rfxg6+
4r2n/B1K2Rq1/r2Q3P/1p1Nn1pb/4nB1Q/bPp2r2/1Nb1Rrk1/2Q4R w - - 0 1 illegal: No extended proof kernel
b7/3rQ1K1/1Q4pn/RNqP1br1/pPN4B/3n1BQR/r1p3n1/kNb1n3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 e4 Ke6 h4 Ke5 b4 Kd4 b6 a5 b7 c5 d3 f5 e5 g6 e6 g3+ Kf3 c3 h5 c2 e7 g2 e8Q c4 h6 c3 h7 Nh6 Nh3 g1R Qe6 Nd7 b8N Rg5 Qa6 Qb6 Bd2 c1N Ra4 c2 Ra2 Nc5 Nf2 Ra7 Bg2 Rd7 Be1 Qc7 Nd2 Kc3 d4 N5d3 Ng4 Qc5 Bh4 Bb7+ d5 Ba8 Ra1 Kb2 Rh3 Rg8 Ne3 Ne1+ Kf2 f3 h8Q+ Bg7 Qh7 f4 Nb1 Rgd8 Nc6 Ncd3+ Kf1 f2 Ke2 f1N Na7 Bc3 Qe7 Bd2 Nb5 Bc1 Qb6 Ra7 Bf3 Rdd7 Ng4 Ne3 Ne5 N3g2 Ra3 Nf2 Qd3 Ra6 Qe3 Nfd3 Qf2 Raa7 Qg3 Ra6 Rb3+ Ka1 Nc4 Bb2 Kd2 Bc1+ Kc3 Raa7 Bh5 f3 Rb2 f2 Bf3 Qc6 Kd4 f1B Ke4 Ndf4 Kd4 Bd3 Rb3 Bf5 Ke5 Qc5 Kf6 Rac7 Re3 Nfd3 Kg7 a4 Re6 Rc6 Rf6 Re6 Rf8 Re3 Rc8 Ne5 Rc7 Ra3 Ra7 Ra2 Ra5 N5d3
6k1/1r1R1n1b/nbB1p1p1/1B2r1B1/1QnN3b/QR1P1P1p/1Nn3RK/q3r3 w - - 0 1 illegal: No proof kernel
2r1Br2/1k2b1r1/1p4K1/1R1rPn1Q/1p1B2pb/1P1N1R1b/N2N1n1n/1B1q2Q1 w - - 0 1 legal: proof: f4 a5 g4 e5 c4 exf4 g5 d5 cxd5 h6 Qb3 hxg5 Qa3 g4 Qb4 axb4 Kf2 Kd7 a4 f5 e4 c5 h4 Kc7 d4 g5 d6+ Kb6 d7 f3 Ke3 g3 a5+ Kc6 b3 g2 d5+ Kc7 e5 g4 Kf4 c4 d6+ Kc6 h5 f2 h6 b6 h7 c3 a6 c2 a7 Nh6 Be3 c1B Bb5+ Kb7 Nd2 f1N Bd4 Be7 Rh3 Na6 Rf3 Nc5 Ne2 g1R Ra5 Rg8 h8Q Ne4 Nc3 Rg7 Na2 Nf2 Qe8 Bh4 Qh5 Nh2 Ba4 Rd1 Rb5 Qg8 d8Q Qd5 Qf8 Bd7 Qd8 Bc6 d7 Rc8 Qf8 Be7 Qf6 Qd6 Qfh4 Be4 Qg3 Bd3 Qg2 Bf1 Qg1 Bh3 d8N+ Ka8 Ne6 Kb7 Ke3 Bh4 Nf4 Qd8 Nd3 f4+ Ke2 Nf5 a8B+ Ka6 Bc6 Be7 Be8 Kb7 Bg6 Qd7 Nc4 Be3 Nd2 Bh4 Bb2 Bc5 Bd4 Bd6 Rd5 Qd8 Bae8 Bde7 Ra5 Rdc1 Bh7 R1c5 Rb5 Rd5 Nb2 Nd1 Kd3 Qd7 Ke4 Qd6 Rg3 f3 Nd3 f2 Rf3 f1R Bhg6 Nf2+ Kf4 Qc5 Bh7 Qc1 Bhg6 Ne3 Bf5 Qd1 Be4 Nc2 Kf5 Ne3+ Ke6 Qb1 Rf6 Nh1 Nb2 Rg6 Kf7 Qd1 Bb1 Rf3 Rf5 Nf2 Nd3 Rg8 Rf6 Rf8+ Kg7 Rf5 Kh7 Rg5 Rf3 Rg7+ Kh6 Rgf7 Kg6 Nf5 Nb2 Rh7 Nd3 Rg7#
4k2q/3r3P/1rp1pQ1R/N3r1K1/Nb2P2R/nR1Q1bB1/1B1nn1p1/1n1b3Q w - - 0 1 illegal: No possible last move, all moves rejected
b6b/Q1n1nPB1/1rB1kP1p/1r1nN3/pp1rR1R1/1qR1b3/K7/BNQ3r1 w - - 0 1 illegal: No proof kernel
6qr/2kbQp2/K2b1p1n/1n5P/RB6/pB2rbPr/N6b/Q1NB1nRN w - - 0 1 illegal: No proof kernel
R2n1Q2/4Qp1p/B5bn/n1b2Qpk/1B4r1/Kq1RP1n1/P6N/1Nr2Brb w - - 0 1 illegal: No proof kernel
7n/Nn2p1rq/KbrkP2p/2n2Qb1/1B1B4/P1N4R/BQR1p3/1Rb2r1r w - - 0 1 illegal: No possible last move, all moves rejected
R3B3/2qp1K2/1N6/Q1nRQQbr/b4npk/B1P4p/nPrr3r/R3N1b1 w - - 0 1 illegal: No proof kernel
2b2bBn/2Pr3n/2p4Q/N5nr/1Q1p1KR1/BR1p3R/1qb4P/r3NkbN w - - 0 1 illegal: No proof kernel
nb2Q1N1/1pk2brQ/n1Bp2R1/2P3Qp/r4N2/K4RB1/P3Bb2/r2qbn2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 e5 g4 h5 c4 e3+ Kc2 e4 Kb3 e2 f4 e1B f5 e3 c5 e2 g6 d3 g5 d2 g7 Ra5 g6 Qc7 f6 Kd8 f7 Bf2 Rh3 e1B Rf3 Qd6 Ne2 Na6 Nf4 Ne7 g8B Rh7 g7 Kc7 Nc3 Nd5 Qc2 d1N Ne4 N1e3 Be2 Nf1 Nf6 Ra4 Be3 Be7 f8Q Nb6 Bd5 Na8 g8Q Rg7 Bc6 Qd1 Qe8 Bd6 Qd5 Be5 Ng8 Bd6 Qg5 Be5 Kc4 b3+ Kb5 b2 Qh7 Bd6 Bd4 b1R+ Bb2 Rc1 Be5 Kb8 Rb1 Bc7 Rbb3 d6 Rg3 Ra1 Rbf3 Bb6 Rg4 Kc7 Rg1 Be6 Rg4 Bf7 Rg2 Rc4 Rg4 Rc2 Ka4 Rc4+ Ka3 Rb4 Ng2 Rc4 Bg3 Ba7 Nf4 Rb4 Qh4 Rd4 Rg6 Bb8 Qg5 Ra4+
3R2q1/1pr2Q1p/6Qb/R1rBb1r1/R2N2nP/2rB1N2/2QP1k1p/nbK3n1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 a5 h3 axb4 Nf3 g5 Bb2 g4 Ng1 f3 Bd4 Ra6 Be5 Ra8 Bh2 g3 Qc2 gxh2 Qb3 Nc6 Qd1 Nb8 g4 Ke7 a4 Kd6 e4 Ke5 d6 Kf4 h4 Kg3 g5 c5 e5 f5 a5 b3 e6 f2+ Ke2 c4 g6 f4 a6 b2 e7 f3+ Ke3 c3 e8Q c2 g7 c1B d7 Nc6 a7 Nh6 g8B Nb4 Ra5 Nc2+ Kd3 Na1 Qe6 Ng4 Qee2 Bh6 Bf7 Qg8 d8Q Bf5+ Qe4 Rc8 a8R Rc7 Nc3 b1R Rc8 Rb5 Qb3 Rbc5 Qf6 Bb2 Nb5 Be5 Nd4 Bg6 Be2 f1N Qc2 Kf2 Bd5 Ng3 Qf7 Bf5 Bf1 Ne2 Rca8 Qd8 Ra4 Rg8 Rb8 Qf8 Rd8 Rg5 Ra5 Qg8 Ra4 Kg3 Ra5 f2 Ngf3 Ng1 Ra4 Bd7 Qeg6 Bc6 Be2 f1R Ra5 Kf2 Ra4 Ra5 Kc3 Rc5+ Kb2 Re1 Bd3 Re3 Kc1 Bd7 Ba6 Rec3 Bd3 Bf5 Ra5 Nh3 Re1 Ng1 Re4 Bhg7 Nb5 Bf8 Rea4 Bh6 Nbd4 Be6 B5e4 Ba2 Bd5 Bb1
rNrB1Rn1/QrQB2b1/2NRqR1P/Pr1p4/3N4/K2rq1p1/5pb1/3k1n2 w - - 0 1 illegal: No possible last move, all moves rejected
nbr1Q2r/Kn1N2q1/bpRr1p1P/8/B3P3/r6Q/3QpNrq/1k2B1RN w - - 0 1 illegal: No proof kernel
R2B4/2r1npNB/2pKN3/1k2nQ2/p1N1R1b1/2R1Qn1P/nb1q2P1/2rqn3 w - - 0 1 illegal: No proof kernel
K1rkn3/1QR1p1Q1/1N1q4/N5bR/N3pBpP/1q1q1n1B/Pqb5/R3r1q1 w - - 0 1 illegal: No possible last move
2R2Q2/K1B1pn2/1r1Qn2p/5p2/NbnnBb1R/1q3nP1/2r1R1BP/k2N3q w - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 e4 a5 f4 gxf4 d5 Be6 d6 Bd5 exd5 axb4 Ke2 Kd7 a4 b5 g3 f5 a5 c5 a6 b3 a7 c3 Kd3 c2 Nc3 b4 Kc4 f3 Kb5 c4 Nh3 b2 Ng5 b1Q Bh3 b3 Be3 c1B Qd3 f2 Ra3 f1N Bd2 b2 Nce4 c3 Ra4 c2 Ra2 Bh6 Qe3 Qb6+ Ka4 Qb3+ Ka5 Nc6+ Ka6 Rb8 a8B Nd4 Qe1 Ne3 Ne6 Rb6+ Ka7 Bf4 Ra3 Nh6 Ba5 Bd2 Ra4 c1N Bg2 Nce2 Nf2 Nc4 Qd1 Rc8 Re1 Nf7 Bb7 h6 Nc5+ Ke8 Be4 Ne6 d7+ Kf8 d8Q+ Kg7 d6 Kf6 d7 Ke5 Bbd5 Bb4 Qf8 N2d4 d8R Qa1 Bb7 b1N Re2 Nbd2 Re8 Rc7 Rc8 N2f3 Qd2 Qh1 Nd1 Nc2 Qdd8 Rcc6 Qc7+ Kd4 Qb8 Rb5 Bc7 Rbb6 Ne3 Kc3 Ba8 Kb2 Nd1+ Kb1 Bb7 Bc3 Rb4 Ka1 Na4 Ncd4 Ba8 Rb5 Qb6 Bcd2 Qc5 Rbb6 Qd6 Na5 Bb7 Rc2 Rc4 Bb4 Ba8 Ne1 Bg2 Nef3 Be4 Ba3 Rb4 Nc4 Bd5 Be3 Nac3 Nce5 Rf2 Ne2 Rh4 Nc4 Na4 N2d4 Be4 Bf4 Re2 Bb4
5bbn/2RPb1r1/1qrNQp2/KB2qR2/p6Q/pP2B1N1/1bk2bR1/1n3B2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 h4 Kd7 e4 Kd6 d4 c5 Kd2 g5 Kc3 a5 b3 f3 h5 a3 h6 g3 h7 f6 Rh3 c4 Ra2 g2 Re2 f2 Bd2 a4 Kb4 c3 Nf3 g1B Bg2 f1Q Rh6 g4 Nh2 g3 Rf2 c2 Rg6 c1B Rf5 Bb2 Be3 Bf2 Qe2 Ra6 Nd2 Qe1 Bf1 g2 Rg4 g1B Rg2 Rb6+ Ka5 Be6 Qa6 Ne7 e5+ Kc7 d6+ Kc6 d7 Kd5 Qc8 Rg8 h8Q Ng6 Qh4 Rg7 Qa6 Qc7 d8R+ Nd7 Rc8 Bg8 e6+ Nde5 e7 Nh8 e8B Rc6+ Qb6 Qb8 Rc7 Qe2 Ne4 Qb7 Rf4 Nf3 Nd6 Nd2 Bd7 Qh5 Rf3 Qe5 Rf5 Nb1 Qa6 Rc2 Bdb5 Rc5 Nf3 Rc6 Nd2 Bh2 N2e4 Bf4 Ng3 Qb6+ Kb4 Be7 Qc8 Bh6 Qd7 Qb7 Ka5 Qb8 Qc8 Qb6+ Kb4 Qc5+ Ka5 Rg5 Nb7 Bg7 Ne2 Rg4 Qe6+ Ke4 d5 Bgf8 d6 Qd4 d7 Qc5 Bf4 Rg7 Ng3+ Kd4 Be3+ Kc3 Nd6 Kc2 Qh1 Qcd4 Qh4 Qb6+
b3rQQQ/BB1P1p1n/2N4P/bn1p3r/1b3Rb1/1K1q1p2/4k3/BNb3Rq w - - 0 1 illegal: No proof kernel
B4Q2/1b1p2N1/P1b4N/KQB3r1/pp1R3P/2b1nq2/b4bnR/rk3BqQ w - - 0 1 illegal: No proof kernel
4rK2/rQp2B2/Nn1r4/1np5/3NPQ2/b1P4B/qR3prR/r1NqBk1b w - - 0 1 legal: proof: h4 b5 f4 g5 a4 gxh4 axb5 e5 c3 exf4 Qb3 d6 Qb4 Bh6 Qc4 Bf8 Qc5 dxc5 Kf2 Kd7 Kf3 Ke6 Ke4 a5 g4 h5 d4 f5+ Kf3 Kd5 b4 Kc4 g5 h3 d5 a4 g6 h4 b6 a3 b7 h2 b5 a2 b6 h3 d6 Ra7 g7 Ne7 g8B+ Nd5 d7 Bh6 Be3 Nc6 b8N Nd4+ Kf2 f3 Kg3 f2 b7 f4+ Kg4 f3 Kh5 Nb5 Bf7 Re8 Kg6 Qg5+ Kh7 Qg2 d8Q Bg4 Bd4 Bc1 Kg7 Ba3 Qd6 Be6+ Qg3 Nb6 Na6 Bd5 b8Q Re4 Kh6 Re8 Qf4 Qg8 Bg2 f1Q Qb7 Qd1 e3 Kd3 Ne2 Be4 Nd2 f2 Nb3 Bc6 Rb1 a1R Nbc1+ Kd2 Bf1 Ke1 Rb2 Bg2 e4 Bf3 Bg6 Qa2 Kg7 Bg2 Be3 Bf3 Rg1 h1R Bf7 h2 Rg2 Rg1 Nd4 h1R Nf5 Re7 Kf8 Rh6 Rh2 Rd6 Nd4 Bh1 Bh3 Rg2 Bd2+ Kf1 Be1 Re8+
2b2KQb/2pPN1rN/kB3q1R/bnqr3p/B2nP3/8/1Bb4p/R2Q1bR1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 d4 a5 b4 h5 e4 a4 g4 h3 b6 Kc6 d5+ Kb5 g5 h2 g6 a3 b7 a2 g7 Nf6 g8R Ra5 d6 Rh7 d7 Rg7 Nh3 Nd5 Nc3+ Ka6 Rh8 Nc6 b8Q Qf6 Rg1 Rc5 Bb2 Nd4+ Kf2 f3 Ng5 f4 Rh6 Rb5 Nh7 Bc5 Bd3 Bb6 Bc2 Ba5 Ba4 Rc5 Nb5 c3 Na7 c2 Nc6 c1Q Ne7 Nc3 Qa8+ Kb6 b5 Re5 Qd5 Ka7 b6+ Ka6 b7 Ncb5 b8B Qc5 Qg8 Rd5 Rc1 a1B Ba7 Rg3 Bb6 Rg7 Kf1 f2 Rb1 Nb3 Ke2 N3d4+ Kd3 f3 Rc1 f1B+ Ke3 Qg6 Kf4 f2 Rb1 Bd3 Rc1 f1B Rb1 Qb4 Rc1 Rd6 Ke5 Bc2 Rb1 Qf7 Rc1 Qf3 Rb1 Qfc3 Rc1 Rd5+ Kf6 Qbc5 Rb1 Rg3 Kf7 Rg7+ Kf8 Qf3+ Ke8 Qf6 Rc1 Qg6+ Kf8 Qgd6 Rb1 Qf6+ Ke8 Rg4 Nf5 Qg5 Ba3 Nc6 Ne7 Bh8 Bb2 Ncd4 Ra1 Qe5 Kf7 Rg7+ Kf8 Qf6+
2Q1B1n1/1pn5/2npr2B/1B1p1n2/N1b2q1R/R1K2Nb1/1P1n2Pq/1kr1NQ2 w - - 0 1 legal: proof: e4 g5 d4 f5 exf5 c6 h4 gxh4 d5 cxd5 a4 Qa5+ Qd2 Qxa4 Qd1 Qa2 Kd2 Kf7 c4 Kf6 f4 a5 c5 h5 c6 h3 c7 h2 Qa4 h4 Ba6 h3 Na3 Nc6 Qc2 a4 Qe4 Rh6 Kc3 Qc4+ Kd2 e5 Nf3 Bd6 Rg1 h1N Qe2 e4 Nb1 e3+ Kd1 a3 Ke1 a2 Qd1 h2 Qd3 e2 Kd2 e1N Nh4 Nc2 Qf1 Ng3 Bb5 h1Q Nf3 N2d4 Nc3 Ne6 Na4 Qh2 Ne1 Be5 Rh1 d6 Qf3 Rg6 Qf1 Bd7 c8B Be8 Bd7 Nc7 Nd3 Rh6 Ne1 Bh5 Be8 Be2 Nb6 Ra3 Na4 Qd4+ Kc2 Rd3 Bd2 Qe4 Be3 Rd4+ Kc3 Bc4 Bd2 Qg1 Rh4 Qh2 Rc1 a1N Rb1 Nb3 Ra1 Kg7 Ra3 Re6 Bc1 Nd2 f6+ Kf8 f5 Qf4 f7 Ke7 f8N Kf6 Ng6 Kg5 f6 Kf5 f7 Ke4 f8Q Nf5 Qh1 Ke3 Qg1+ Ke2 Qf1+ Kd1 Rh7 Qg4 Rh6 Bg3 Ne5 Qf4 Rh5 Nb3 Be3 Nd2 N5f3 Kc1 Rh3 Kb1 Rh4 Qg4 Bh6 Qf4 Bg7 Nb3 Bh6 Rd1 Bd7 Nd2 Qc8 Bd3 Be8 Be2 Ba6 Bc4 Bb5 Rc1+
r1b1R1B1/npn1q3/k1NpR1BP/B1Q2K1p/4nQq1/1N1P4/4Q3/n3nb1r w - - 0 1 illegal: No proof kernel
1q4bN/Bp1k2bP/1bqrN2b/3N2n1/1pnQ3K/4rR2/b1P1B1p1/4QR1R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 a4 g5 f4 e5 Kf2 d5 Kg3 e4 h4 e3 a5 e2 f6 e1B+ Kg2 d3 a6 d4 f7+ Kd7 f5 d2 f6 d3 a7 g3 Kh3 g2 h5 g4+ Kh2 g3+ Kh3 Rh6 Qf3 d1Q Rh2 d2 Qe4 Qf3 Kh4 d1B Nh3 g1B Ng5 Bc3 Rh1 g2 Be3 Nc6 Be2 Ne5 Ne6 Nc4 Qd4+ Qd5 Ra3 Bd2 Nc3 Bg7 f8Q Qd6 Nd5 Qc6 Rc3 Rg6 Bf2 Nh6 Rf3 Nf7 h6 Ng5 h7 Qdc7 f7 Qb8 Qh8 Be3 Qc3 Bb6 Bd4 Be3 Qe1 Bc1 f8R Rf6 Nef4 Rd6 Ng6 Be3 Rff1 Bd2 R8f3 Bc1 Bd3 Be2 Be3 Nh3 Bc5 Bch6 Bf2 Ng5 Qd8+ Ke6 Nh8 Bd7 Be3 Be8 Qf6+ Kd7 Qd4 Bf7 Bg1 Bg8 Be3 Qe8 Bg1 Rc8 a8N Rc7 Be3 Qb8 Bf2 Rc8 Nac7 Re8 Bg1 Re3 Ne6 Ne5 Ba6 Bc4 Bb5 Bb3 Be2 Nc4 Qc5 Rc3 Qa1 Bd8 Qe1 Ba2 Qe3 Ba5 Qf4 Rd3 Ba7 Bb6 Qd4 Re3
3r1Q1b/1pp3qB/1bR1K1P1/nk2rrRQ/r2q1Qp1/2P5/1BN1N1R1/4r1n1 w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 d5 h5 dxe4 Na3 Bf5 Nb1 Bg6 hxg6 f5 Rh3 fxg4 Rh6 Ra5 Rh1 Ra8 Ke2 Kd7 Ke3 Kc6 d4 e5 a4 h5 f4 h4 c3 h3 a5 b3 a6 b2 a7 g3 f5 g4 f6 g2 f7 h2 Ra2 Ne7 Ra3 Bg7 f8R Nd7 Ne2 g1B+ Rf2 Kb5 d5 Nc6 d6 Na5 Qd4 Rf8 Ra4 Rf5 Rc4 Bh8 Rc6 Qg8 Bg2 Rd8 a8Q Qg7 Bf3 Nf8 d7 Nh7 Qd6 Ng5 Bg2 Nf3 Na3+ Ka4 Qb8 b1R Nc2 Rb4 Bb2 Kb5 Qf6 Rd4 Qg5 Rb4 Qh5 Ra4 Qa7 Ng5 Qd4 Nh3 Kd2 e3+ Kd3 Qh7 Ke4 Qg7 Kd5 e4+ Ke6 Rg8 Qh4 Rd8 Qd6 Qd4 Qf4 Qg7 Nc1 e2 Qh5 e1R Ne2 e3 Bd5 Qd4 Rg2 Qg7 Nc1 e2 Bb3 Bb6 Ba2 Ra8 d8Q Ng1 Qf8 Rd8 Bd5 Nf3 Rf1 Ng1 Rf3 h1Q Re3 Qh3 Re5 Qe3 Bb3+ Qc5 Ba2 Rf7 Rg5 Rf5 Bd5 Qcd4 Bb3 Rd1 Ba2 e1R+ Ne2 Rdd5 Bb3 Qf2 Ba2 Qh6 Ke7 Rc5 Bg8 Rd8 Ke6 Qg7 Bh7 Qfd4 Qe8 Rcd5 Qf8 Rde5+
Rn1k4/N1nb2n1/7r/1q1Q1r2/1bPNQp1p/1p1RBP1B/2N3Kb/b5Rq w - - 0 1 illegal: No possible last move
N4R2/2qq2n1/2rB1nB1/K4Q2/Npp1bpPq/r1P3nB/2Q2b2/kq3QR1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 dxe5 g5 Qd2 gxf4 Qd3 h4 Qg3 hxg3 Kd2 Ke7 h4 Ke6 a4 Kd5 e4+ Kd4 h5 c5 h6 b5 e6 f5 a5 d5 e5 f3 a6 f4 a7 g2 h7 c4 e7 b3 e8Q b2 e6 f2 e7 Nh6 Na3 b1Q Qh5 Nf5 e8B Bc5 Bg6 Ng7 Qf5 Qh4 Rh2 Rg8 h8Q Nd7 Qh7 Bb7 Rh1 Rac8 a8Q Rc6 Qe8 Ba8 Qe1 Nf6 Rh3 Re8 Re3 Rd8 Re8 Bb7 Rf8 Ra8 Nh3 g1Q Ng5 Ra7 Ne4 Ra5 Bh3 f1N+ Ke2 Ra8 Nc3 Ng3+ Kd2 Bb6 Qf1 Qe3+ Kd1 Qe7 Kd2 Qc7 Bb2 Kc5 Na4+ Kb4 Be5 d4 Bd6+ Bc5 Rf7 d3 Rf8 Raa6 Be5 Bf2 Bd6+ Ka5 Kc3 d2 Nb6 d1Q Na8 Qa2 Nb1 Ka4 Nd2 Ra5 Ne4 Ra7 Nc5+ Ka3 Rc1 Qb1 Na4+ Ka2 Qd5 Qe2 Qf5 Qe8 Re1 Qed7 Rc1 Qa1+ Kb4 Ra5 c3 Qb1+ Nb2 Ra3 Rd1 Qc1 Na4 Ka1 Qc2 Nge8 Qh5 Ng7 Qhf5 Qb1+ Qb3 Rb6 Ka5 b4 Qbc2 Bf3 Qg2 Bd5 Rg1 Be4 Qf1 Rc6+
1bK2rN1/1n3N2/3N2k1/1BQR1q2/p1q1pPrB/1b1Rbp2/3QbP2/2n2qB1 w - - 0 1 illegal: No possible last move
1NQ1Rb1q/N1qq4/2r1n1kn/6P1/1R4R1/1Bpp1p1r/1qP2KN1/1n2BQb1 w - - 0 1 legal: proof: g4 a5 b4 axb4 d4 e5 g5 exd4 g6 hxg6 f3 g5 Ba3 g4 Bb2 Bc5 Bc1 Bf8 Na3 g5 Nb5 b6 Qd2 g3 Bg2 g4 Na3 Bb7 Bf1 g2 Nb1 g3 Qd1 Bd5 Be3 Be6 Bc1 Bg4 fxg4 Ra5 Bh6 Ra4 Bc1 Ra8 h4 d5 e4 f5 a4 Kf7 h5 c5 h6 b5 e5 c4 e6+ Kg6 a5 d3 e7 c3 e8R f4 a6 d4 g5 d2+ Ke2 f3+ Kd3 b3 h7 b4 a7 b2 Nh3 g1B Na3 b1N Nb5 b3 Ra4 b2 Rb4 Bh2 Rg1 g2 Be2 Qd7 Qf1 d1Q+ Bd2 Qc7 Ke4 Na6 Be1 Nh6 Bc4 d3 Ke3 Rc8 a8N Nc5 Na7 Ne6 Bb3 Qd7 Kf2 Rc6 Nc7 Qd2+ Qe2 Qf4 Na6 Qfc7 Nb8 Nd2 Rd4 b1Q Rb4 Qb2 Qf1 Nb1 Nf4+ Kf5 Nd5 Kg6 Ne3 Rg8 h8Q Rg7 Bd2 Rh7 Qd4 Rh8 Qc4 Rh7 Qa6 Rh8 Qc8 Rh7 Rh1 g1Q+ Ke1 Qf2+ Kd1 Rh8 Rg1 Nf7 Rgg4 Rh3 Ng2 Qfd4 Ke1 Qh8 Kf2 Nh6 Be1 Bg1+
4q3/4B3/NK2nQR1/1r1b1qpR/R2QpnPb/P1NqBkqB/2p5/6rb w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 Qf3 fxe4 Qd3 h4 Qg3 hxg3 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 Ke5 Kb5 Kf4 d4+ e3 h4 e5 h5 g2 d6 b3 d5 c4 a3 b2 d7 c3 h6 Na6 d6 Nf6 f3 Be7 h7 Rb8 Ra2 Nd5 Rh6 Nc5 Rg6 Ne6 Ra1 Bh4 Nd2 b1Q+ Nb3 Qf5 Nc5 c2 Rb1 b6 Rb3 Bb7 Na6 Kg3 Rb1 e2 f4 e1Q Ne2+ Kf3 Be3 g1Q Nc3 Qgg3 Rb4 Qe8 Bh3 Qd1 Rd4 Qdd3+ Rc4 Rf8 h8R Rf6 Rh5 Rf7 Ka4 b5+ Ka5 b4 d8B b3 d7 b2 Ra4 b1B Be7 Ba2 d8Q Ba8 Qd6 Rb1 Qc5 Rg1 Qd4 Bc4 Bd8 Rb7 Be7 Qff7 f5 Ndf4 f6 Bd5 Qc5 Qff8 f7 Rb8 Qd4 Bab7 Rgh6 g5 Kb6 Ba8+ Ka7 Rb5 Rg6 Qg7 f8Q Qf6 Qh8 Qff5 Nb1 Ke2 Qf6 Bh1 Nc3+ Kf3 Bc1 e4 Be3 Ra5 Kb6 Bd5 Rg8 Rc5 Rg6 Rb5+
3rN2K/5nB1/1bR1N2n/1B2n1pk/2RP1p2/1rB2P1n/b2bQ1pQ/1R1q3q w - - 0 1 legal: proof: e4 b5 b4 h5 a4 d5 g3 dxe4 g4 hxg4 axb5 c5 Bc4 cxb4 Be2 Nf6 Bf1 Ng8 Ke2 a5 Ke3 g5 h4 e5 c4 f5 c5 Kf7 d3 Kg6 c6 g3 b6 a4 f3 b3 b7 a3 c7 b2 Ra2 f4+ Ke2 e3 Nd2 b1N Bb2 g2 Bc3 e4 Rc2 a2 Nc4 a1Q Nd6 Nc6 b8Q Be6 c8R Nd2 Ne8 Ne5 Rc6 Ndc4 h5+ Kh6 Qc8 Nd6 Qe1 Bb3 Qh3 Ra3 Qh2 Ba2 Qd2 Rb3 Qd1 Kh7 h6 Kg6 h7 Nh6 Qe1 Rg8 h8B Qc1 Bg7 Qb1 Nh3 Kh5 Rc4 Qd7 Nf2+ Qh3 d4 Be7 Rc1 Bd8 Rc2 Bb6 Nd3 Qc1 Nc5 Rf8 Nc7 Rd8 Ne8 Qa1 Qd1 Qh4 Ne6 Qh3 Ke1 e2 Kd2 e1N Qe2 N1d3 Rc1 Nf2 Rb1 Rb5 Rc6 Qh4 Rb4 Nh3 Rbc4 e3+ Kc2 Ng6 Kd3 Rb3 Rg1 Nb5 Ke4 Qd1 Rh1 Nd6+ Kd5 Ne7+ Ke5 Ng6+ Kf6 Ne5 Bf8 Qhe1 Kg7 Qh4 Kh8 Qhe1 Qd2 e2 Bg7 Qh4 Qe3 e1B Bd3 Bd2 Qe2 Qc2 Rb1 Qd1 R4c5 Qhe1 Bb5 Qh1 Rc4 Ndf7+
nnK2NR1/1R1rB3/2QNB2R/2q2p2/PrbQ4/1q4p1/1pNbk2P/4nnb1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 d3 Kd4 d6 b5 e5 g5 d7 f5 e6 c5 e7 g3+ Kf3 g2 e8Q b3 Qd2 g4+ Ke2 b2 Nh3 g1B Ng5 c4 Nf7 b4 Nd6 b3 Na3 g3 Kf3 c3 Rb1 Qb6 d8N c2 Qc6 Ra7 Be2 Rh4 Ne6+ Ke5 Qd1 Bh6 Nf8 Kd4 Bd2 c1Q Bb4 Be6 Bc5+ Kc3 d4 Ne7 d5 Nc8 Bc4 Rd7 Nc2 Qb5 Ba3 Nb6 Bc5 Na8 Ba3 Bf2 Re1 Bg1 Bc5 Bg8 Re6 Bg5 Rh6 Qb6 Ra1 b1N Ra2 Na3 Rb2 Be3 Qg1 Kd2 Qf2+ Kd1 Rb1 Bd2 Qd4 Be6 Nb7 Rg4 Be7 Qc5 Rb2 Qb1 d6 Bg8 Be6 Bf7 Kg2 f3+ Kh3 f2 Kg2 f1N Kf3 Rd8 d7 Be3 Nd6 Qa2 Qb6 Bg1 Qc6 Rc8 d8R Rc7 Re8 Rd7 Rd8 Re4 Rc8 Re3+ Kf4 Ke2 Kg5 Re4+ Kf6 Rf4 Ng6 Qb1 Rg8 Qd1 Nf8 Rh4 Na1 Nc2 Rb1 Ne1 Nc2 Bh5 Rb2 Bf3 Kf7 Bd5 Ke8 Bc4 Rb1 Rc7 Kd8 Rd7+ Kc8 Rg4 Ra1 b2 Ra3 Rh4 Rb3 Rg4 Rb7 Rf4 Na1 Qb3 Nc2 Ba6 Qh8 Rb4 Qd4 Bc4
Q1qQ2R1/5K1b/1bb5/1rNRp3/P3B3/pnnb1PBB/p1q2Q2/rNk2r2 w - - 0 1 illegal: No proof kernel
4nQKb/qbk5/1rB5/NR1pnB2/2q1p2R/1p1BPQ1b/r4N1P/1R4bq w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 g5 fxg5 h6 g6 Qa5 g7 Qd8 g4 Qb6 g5 Qc7 g6 Qd8 Bg5 hxg5 Kd2 f5 Kd3 b5 c4 e5 a4 d5 c5 Kd7 a5 b3 a6 f4 c6+ Kc7 e3 g4 a7 b4 Ra4 f3 Qd2 f2 Qa2 g3 Na3 b2 Nc4 g2 Na5 b3 Nh3 Nf6 g8R g1B g7 b1Q+ Qc2 Qa2 Qe2 Qe8 Qf3 Rh6 Rb4 Qd7 Rh8 Qg4 g8Q Nbd7 Rb5 Bg7 Qf8 Bb7 Be2 f1Q Nf2 Ne8 Rh7 Re6 Rh4 Qfa1 Bf1 Bh8 Be2 Kc8 c7 Rb6 Bf1 Qa4 Kd2 Qc4 Bd3 Qg2 Ke2 e4 Kd2 Rb8 a8B Qaa4 Qe2 Ne5 Qef3 Kd7 c8B+ Kc7 Bf5 Rd8 Nc6 Qa7 Na5 Ba6 Bc6 Bb7 Be2 d3 Bf1 Qa4 Kc3 d2 Be2 d1B Bd3 Qa2 Kd4 Ra8 Qg3 Bg4 Qf3 Bh3 Kc5 Qe2 Kd4 Ng4+ Kc5 Ngf6 Kd4 Qgf1 Ke5 Ng4+ Ke6 Qfd1 Kf7 Ne5+ Kg8 Qdf1 Bc2 Qc4 Bd3 Qb1 Nd1 Bf2 Re1 Bg1 Nf2 Qd1 Qf4 Qf3 Rb1 Qh1 Qf3 Qb8 Qg2 Qc5 Nc4 Ra2 Na5 Qc4 Qf3 Qa7
6bb/1r1rnQ1N/RNR5/BrpB3P/q2N2QK/1ppkr3/1n3qP1/5Rq1 w - - 0 1 illegal: No proof kernel
2q2N2/B1k1b1K1/4B3/r1p1p1bq/1q4Rp/n1B1PN1q/Qn1R3P/b1Q1r2N w - - 0 1 legal: proof: c4 a5 g4 d5 b4 dxc4 a4 b5 Ra2 f5 Bh3 fxg4 Ra1 Bd7 Bf1 axb4 Bh3 b3 Bg2 b4 Bf1 Bb5 axb5 Ra4 Bb2 Ra5 Bc1 Ra8 f4 Kd7 Kf2 h5 Ke3 c5 Ke4 g5 Kf5 b2 Kg6 h4 d4 c3 b6 b3 b7 c2 f5 g3 f6 g2 d5 g4 d6 g3 f7 Nh6 Bf4 c1B Ra7 Na6 b8B+ Nc7 Ra1 Qc8 Ba7 Nb5 Qd2 Na3 Bg5 Ng4 Bb8 Ra5 Nc3 b1Q+ Ne4 b2 Bf6 Nf2 Bc3 Nd1 Ra2 Qd3 Nf3 b1Q Rg1 Qb4 Ba7 Nb2 Qc2 Qd5 Nf2 Bg5 Nh1 e6 Qb1 Bfe7 Kg7 Re8 f8N+ Kc6 d7 Kc7 Qc1 Qf5 Nf2 Qh3 d8Q+ Kb7 Qd5+ Kc7 Rh1 g1Q Qb3 Qgg2 Rg1 Qf5 Qa4 Qgh3 Nh1 g2 Qac2 e5 Q2d2 Rd8 Qdc2 Rd1 e3 Re1 Bc4 Qfg4 Be6 Qh5 Rf1 g1B Qe2 Bf2 Rg1 Rd1 Rg4 Be1 Bd4 Bc3 Qc4 Na4 Rd2 Re1 Qa2 Ba1 Bc3 Nb2
1K2Q1B1/Bnb4q/bb1b2N1/Pp1RqN1R/1p4Np/4rPnk/r4B2/1Q2r3 w - - 0 1 illegal: No possible last move, all moves rejected
1r5b/1RN4r/1Q4nK/pQ2q1p1/b3PBN1/1rQ1r1qk/Bp1RPb2/3Rn3 w - - 0 1 illegal: No proof kernel
nQBB3b/8/Rrq1n2r/p5p1/p2QnP1N/2r2q2/P1KNQ3/N1R1br1k w - - 0 1 illegal: No possible last move, all moves rejected
2B2RnN/BnR3qR/rq1Q3p/2P1p1rq/3PN2k/2B4p/3K1b1Q/3qrb2 w - - 0 1 illegal: No proof kernel
B4B2/3N1Rq1/3N1n1p/np2b1R1/1KQ2rnN/1P1Pb2p/B2q2Qb/3k1r1n w - - 0 1 legal: proof: f4 d5 h4 g5 c4 gxh4 a4 dxc4 a5 e5 a6 exf4 Ra4 b6 Ra1 Bb7 axb7 Qg5 Na3 Qf6 Nb1 Qd8 e4 Kd7 g4 Ke6 b3 Ke5 d3 Kd4 Kd2 f5 g5 a5 e5 c5 e6 h3 e7 a4 e8B f3 g6 c3+ Kc2 c4 g7 f4 Bb5 a3 Bb2 Ke3 Bg2 h6 Be8 f2 Rh2 f1N Bh1 b5 Ne2 f3 Bg2 a2 Rh1 f2 Bec6 Ng3 Qf1 Qd7 Ba3 Nf6 g8Q Bd6 Ng1 Qg7 Nd2 Ra4 Bcf3 Nc6 b8N Na5 Ne4 Bc7 Rh2 Nh1 Bf8 Bd6 Rb1 a1B Nd7 Bg3 Bd1 Bf4 Kc1 c2 Nd6 Bae5 Ba8 Rb4 Rg2 Bh2 Rg4 Rh7 Qg2 f1N Rg5 Rh8 Qc6 Kf2 Qe6 Ke1 Qg2 Ne3 Ra1 Neg4 Qed5 Nb7 Ra7 Na5 Qd4 Ra4 Kb2 c1B+ Kc3 Be3 Bc2 Rg8 Bb1 Kd1 Nf3 Rb4 Be7 Rf8 Nh4 Rf7 Ba2 Rf8 Kb2 c3+ Ka3 c2 Qc4 Rf7 Bf8 c1Q+ Qb2 Qc3 Qg2 Qc2 Qe6 Rf4 Qc4 Ne8 Kb4 R7f5 Nb8 Nef6 Rf7 Rf1 Nd7 R5f4 Nc8 Qc1 Nd6 Qd2+
N4B1q/4bRQ1/1bb2r1p/p2rnRPB/8/1PQNkn1K/3p1N1B/r4q1b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c4 Kf7 f4 Kf6 Kf2 Kf5 b3 e5 b6 d5 g3 d3 Kg2 e3 g4+ Ke4 c5 h3+ Kh2 h6 f5 e2 f6 e1Q f7 d4 b7 d2 c6 d3 c7 Ke3 g5 e4 Nf3 Ne7 Ra4 Nec6 Ba3 Ne5 Ra5 Bd7 c8N Nbc6 b8B Be7 f8Q Nd4 Qc2 d1R Be2 Bc6 Nc3 Qf1 Qg7 Rf8 Ne1 Rf6 Bh5 Qh8 Nb6 Ndf3+ Kg3 d2 Nd3 h2 Rd5 Ra1 Nd1+ Ke2 Rg1 h1B N1f2 a5 Qc3 e3 Rg2 Ra7 Na8 Rd7 Rb5 Rd5 Kh3 Ng6 Bh2 Ne5 Ne4+ Kd1 Bb4 e2 Bc5 e1B Nef2+ Ke2 Bd6 Bd8 Bf8 Ke3 Rb7 Qe2 Rf7 Be7 Rg4 Qd1 Rf4 Qb1 Ne4 Bf2 Rf5 Bg1 Nef2 Qf1+ Kg3 Ke2 Nh3 Bb6 Nhf2 Qb1 Kh3 Ke3 Bg6 Qe1 Bh5 Qf1+
5B1n/1Nrn4/BQ4PQ/B2P4/NRrq1Np1/2Rbp1k1/bpn1K2b/1n4q1 w - - 0 1 illegal: No proof kernel
2QBq1B1/5n2/1Q3PR1/b3RR1n/bN2K3/1rpBP1q1/p2Np3/n1kb1r1n w - - 0 1 illegal: No proof kernel
Bkb5/4B1R1/5P1r/NqqR1Qn1/1n2PK1N/1p1q2Rp/p3qbB1/Q1rb4 w - - 0 1 illegal: No proof kernel
RnqQ1b1q/2n5/1NN1P3/r1p4b/rBK5/2PBq1QB/2p1Q2p/2kn1R1q w - - 0 1 legal: proof: h4 d5 f4 b5 a4 g5 axb5 gxh4 c3 e5 Qc2 exf4 Qa4 d4 Qb3 d3 Qc2 dxc2 b4 Kd7 d4 Ke6 Kd2 Kd5 Kd3 f5 g4 a5 b6 c5 b5 h5 g5 h3 g6 h4 g7 f3 b7 a4 b6 a3 e3 a2 Bb2 h2 Be2 f2 Nd2 f1Q Ngf3 f4 Ba3 h3 Bb4 Ne7 Ne5 f3 Ndc4 f2 Nc6 Qe1 Rf1 h1Q g8B+ Be6 Bg4 h2 Bh3 Qc8 Bh7 Ra4 Bg6 Bg4 e4+ Ke6 e5 Kd5 e6 Bh5 Bh7 Rg8 B7f5 Rg4 Bg6 Ra5 Bf5 Qe5 Bg6 Qh8 Bh7 Na6 b8Q Nc7 b7 Qg1 Qa8 Re4 b8Q Qg5 Rh1 f1N Qa6 Ne3 Rhf1 Nd1 Qab5 Ne8 Qg3 Nc7 N6e5 Nc6 Nb6+ Kd6 d5 Nb8 Nc6+ Rf4 Nd4 Ke5 d6 Qh6 d7 Qg5 Rb1 a1Q d8Q Qh6 Kc4 Qg5 Bg8 Ke4 Nc6 Rg4 Bf7 Qe3 Be8 Qf3 Bg6+ Ke3+ Be4 Ke2 Rb2 Qe3 Ra2 Qac1 Qe7 Kd2 Qd8+ Nd7 Qa6 Qa1 Ra4 Kc1 Qb5 Nb8 Qa6 Rg7 Bd3 Rg4+ Kb3 Qg1 Rf3 Nf2 Bdf1 Kb1 Ba3 Rh4 Qb5 Ra8 Ra5 Ra4 Bb4 Qh1 Bc4 Nd1 Rf1 Ra7 Be2 Ra8 Qbd3 Qa3+ Kc4 Qc1 Qde3 Qd2 Bd3 Kc1 Qe2 Qe3 Ra7 Qhf3 Rb7 R8a6 Ra7 R6a5 Ra8 Qh1
6kb/1rn1Q2q/1K1NpnB1/1N1RQbq1/5p2/q1RPP2p/r2B4/3qBR1b w - - 0 1 legal: proof: f4 d5 a4 g5 c4 dxc4 h4 b5 axb5 Qd6 h5 gxf4 h6 Qxh6 Ra6 Qh5 Ra1 Qh2 Kf2 f5 b4 Kf7 d3 h5 b6 c5 b7 a5 b5 a4 b6 h4 Ra3 c3 Qe1 c2 Nh3 f3 Ke3 f2 g4 c4 Kd4 c3 Kc5 Ra7 g5 Bg7 Bd2 c1Q Bg2 f1B Nf2 c2 Be4 Bg2 Rf1 Nf6 g6+ Kg8 Rc3 Bh1 Na3 Qd1 Nb5 Na6+ Kc6 c1Q b8B h3 b7 a3 Bg3 a2 b8Q a1Q Qe5 Nc7 Kb6 Qaa3 e3 f4 Bf5 Bd7 Ne4 Qg2 Ned6 Rh7 Qf2 Bh8 g7 Qe4 Bg6 Bf5 Qf3 e6 Bge1 Qb1 Qf2 Qh5 Qh4 Qbd1 Qf2 Qg2 Qf3 Qgg5 Qb7 Ra8 Qa7 Qb4 Qb7 Ra2 Qa7 Qa3 Qb7 Na6 Qe7 Nc7 Qd8+ Nce8 Nb7 Qhh6 Bh5 Qhg6 Qdd6 Kf7 g8R Rg7 Qd8 Rh7 Rg7+ Kf8 Rd7 Kg8 Rd5 Rc7 Qe7 Qh7 N7d6 Ra7 Bg6 Nc7 Rc2 Ng4 Rc6 Nf6 Rc3 Rb7+
8/q1b2RQB/q2Pp3/1q3B1q/p2prNr1/2rnk1BN/Pn4R1/K1NQb3 w - - 0 1 illegal: No proof kernel
2b2B1q/Nbr3q1/1KQp4/3nq1RB/2p2P2/QnN1R3/QpRPnk2/1r3n2 w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 c3 fxe4 Ba3 g5 Bc1 gxh4 Bb5 b3 Bb2 Bg7 Ba4 b5 Ba3 b4 Bc1 b2 Bb5 b3 Bf1 Be5 Rh3 Bd6 Rh1 Bb4 cxb4 Bb7 Be2 Ba6 Bf1 Bc8 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kc5 Kf4 a4 e5 g4 h5 a5 e3 b5 e2 f3 Kg3 g5 e1Q a6 e4 f4 h3 a7 h2 b6 e3 b7 h4 g6 d6+ Kb5 c5 g7 c4 Ra5 h3 Ra1 e2 Nf3 Kf2 Bg2 Ne7 g8R Rh7 Rg5 Na6 b8Q Nd5 Qb6+ Nc5 Qc6 Rc7 Nc3 b1N Nd4 Qh8 Ra2 Qg1 Bf3 e1Q Rc2 Qee5 Bb2 Rb8+ Ka5 Qg3 Re1 h1N a8Q h2 Qc1 Qg2 Ndb5 Ng3 Ba1 h1B Qa3 Nf1 Bh5 Qg4 Na7 Be4 Rf5 Qgg7 Re3 Bg2 Rg5 Bf3 Ncb5 Nbc3 Qa2 Ne2 Bd4 Bb7 Nc3 Bg4 Qa3 Bgc8 Kb5 Qee8 Bf6 Qe5 Be7 b2 Bf8 Nb3 Bg6 Bg4 Bh5 Re8 Qa2 Bgc8 Qa3 Nb4+ Kb6 Re6 Rf5 Rg6 Qa2 Rg1 Rg5 Nd5+ Kb5 Bg4 Nc8 Nh2 Q8a3 Rb1 Na7 Bf5 Qaa6 Nf1 Q6a3 Nc5 Ka5 Be6 Kb5 Bec8 Ka5 Nb3+ Kb5 Nf6+ Kb6 Nd5+
N4rR1/r1nQ1nB1/rq1p1q2/1B2p1P1/3pR3/1kP1qRK1/N5bb/Br4Q1 w - - 0 1 illegal: No possible last move
1N1b2r1/6qB/1QRpq3/r2PnRbN/1prp1q2/1kN3Q1/5KPr/3RBn2 w - - 0 1 illegal: No proof kernel
6R1/1QqN4/n2p2pb/1Q3P1B/1RNnbr2/2qN1bkb/1pRPq1B1/K6r w - - 0 1 illegal: No possible last move
b1n3q1/4B3/QNnpP1r1/N5n1/n1KpPkBb/4r3/Q1qpBqR1/1R1R4 w - - 0 1 illegal: No proof kernel
B1r2qR1/1Qn2n1q/QPNPrpbN/6q1/N3K2B/1pp1Q3/k2b1b2/q1R5 w - - 0 1 illegal: No possible last move
b1nB3r/4bBNR/1PpPQ3/Q3N1R1/NrbKpq2/5Rn1/2q4p/3kq2b w - - 0 1 illegal: No proof kernel
1N2q3/5b2/Qp1P2nk/Nrrr3p/1pR3bQ/P4BrB/KB2q3/N2nR1b1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 c5 d4 f5 Kd2 Kf7 Kc2 Kg7 Kb3 h5 g4 c4+ Kb2 h3 g5 b6 d6 f3 e5 f4 e6 h2 a3 f2 d5 f3 e7 c3+ Ka2 c2 e8B Nf6 g6 Rg8 d7 Ne4 Bb2+ Kh6 g7 c1R Qa4 Bc5 d6 Nc6 Bh3 f1Q Nd2 f2 Ne2 Ne7 Nb3 Ra5 Ned4 Ng6 Nc2 Qe2 Re1 Rb5 Qa6 f1B Na5 h1R Bf7 Bg1 Bd5 Qe7 d8Q Qe8 Qh4 Nf2 Bf3 Nd1 Rb1 Bg4 Na1 Rcc5 Rc1 Rh2 Rc4 Rg2 N5b3 Rf8 Na5 Rff5 g8N+ Kh7 Nh6 Rfd5 Ng8 Rg3 Nf6+ Kh6 Nd7 Bg2 Be4 Bf1 Bh1 Bg2 Nb8 Be4 B1g2 Bef5 Be4 Be6 Bf3 Bf7
1BQb2B1/bn1r4/kpP2KB1/P1rqR1N1/Q1n1R2N/p1p1q2b/2Q4q/1b6 w - - 0 1 illegal: No proof kernel
4kr2/R1QqB1Rr/P3bq1p/1q1r2R1/2p1n1b1/1N2K1Nn/2p1B2P/2rQ3B w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g3 f5 Qc2 f3 Kd1 f2 Qb3 f4 Kc2 Bd6 Qa4+ Kf8 Qb3 f3 Qa4 Bf4 gxf4 Bf5+ Kb2 Bd7 Qd1 Ke8 Kc2 Bc8 d4 b5 Kd2 c5 a4 g5 e4 c3+ Kd3 h6 d5 c4+ Kd4 c2 e5 b3 d6 b4 f5 g4 a5 b2 f6 g3 a6 b3 e6 g2 e7 Nc6+ Ke3 Ne5 Ra4 Qd7 Be2 f1B Ra5 f2 Bd2 Ng6 Rg5 Rh7 Bb4 Nf4 Nd2 b1Q Ba3 b2 Nb3 Nh3 Bc5 Kf7 e8B+ Kf8 f7 Nf6 Bb4 Ne4 Ba3 Qa1 Rg7 b1R Bb4 Qb5 Bc6 Qf6 d7+ Qd6 Bb7 Rc1 d8R+ Ke7 Rd7+ Kf8 Re7 Be6 Bc6 Rd8 Ra7 Qe7 Bb7 Rd5 Bc5 Qd6 Rg5 Ke7 f8Q+ Kd7 Qf5 Ke8 Qf4 Qdd7 Be7 Bg4 Qc7 Be6 Nf3 g1Q Nfd4 Qg2 Rg7 Qg6 Nf5 Qf6 Rhg1 Bg2 Bc6 Bf3 R1g5 f1R Ng3 Bfg4 Ba8 Qe5 Bb7 Rf8 Bc6 Qf6 Bb7 Nef2 Ba8 Rf5 Baf3 Ne4 Bh1 Rd5
2k2BQ1/nNbq3B/pp2p2q/PRbr1b1n/1N2RQ2/2Qr2n1/1P1b4/N2K4 w - - 0 1 legal: proof: e4 c5 d4 d5 c4 h5 g4 hxg4 e5 cxd4 cxd5 f6 Bf4 fxe5 Bc1 e4 f4 Kd7 h4 g5 a4 e3 f5 a6 d6 d3 h5 e2 a5 b6 h6 g3 f6 g4 h7 g2 f7 g3 Qb3 Nf6 Be3 Nh5 Bc5 Nc6 Na3 Na7 Nh3 g1N Qc3 g2 Nf4 Qc7 Rc1 Qc6 Nd5 Rg8 h8Q Rg3 Kd2 e1B+ Kd1 d2 Nc2 Rd3 Qg8 Ne2 Rh4 g1B Ndb4 Neg3 Re4 Bh2 Na1 Kd8 d7 Qh6 Bh3 Kc7 d8N Bf5 Bf1 e6 Nb7 Rad8 Rc2 R3d5 Bd3 Kc8 Rc1 Bd6 f8Q Bc7 Qd6 Bg1 Qf4 Be3 Bf8 Bc5 Qce5 R8d7 Rc3 Rd8 Rb3 R8d6 Bb1 Rd3 Qeh8 R6d5 Qc3 R3d4 Re2 Re5 Nd3 Bg4 Kc2 Rd6 Rb5 Re3 Kb3 d1Q+ Bc2 Qd2 Nb4 Rd7 Bg6 Bf5 Bh7 Rf3 Re4 Qd5+ Kc2 Bd2 Qgg7 Rd3 Kd1 Qc6 Qg6 R7d5 Qg8 Qd7
b4n1q/R1rR2Bp/2p1K3/Qnb2r1B/pb2R2P/2Nq1QP1/1N4B1/kb2q3 w - - 0 1 legal: proof: d4 b5 c4 e5 f4 exd4 a4 g5 axb5 gxf4 Na3 d5 Nb1 dxc4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 a5 e4 f5 g3 c6 b6 d3 b7 f3 b3 f4 Ra2 a4 Rg2 c3 Ne2 f2 Qe1 f3 Bb2 d2 Ba1 d1Q Qd2 Na6 b8R+ Bb7 Nc1 Ne7 Ke6 Ng6 e5 Ra7 Ra8 Bc5 Qd3 c2 Nc3 Ka3 b4 Qb8 b5 Qe1 b6 Rf8 Qb5 Qd8 Qa5 Rf5 Nd3 c1B Nb2 Bd2 Rgh2 Qf8 Bg2 f1Q Rg1 Qd3 Rf1 Qeb1 Re1 f2 Re4 f1B Rh1 Be2 Rd1 Be1 Rd2 Qh8 Rd1 Qc4+ Rd5 Qcd3 Rd7 Bg4 Rg8 Qc1 Rgg7 Ba8 b7 Bh5 b8Q Rc7 Qg8 Bd1 Qf7 Bc2 Qf8 Bb1 Rgf7 Bd2 Rfe7 Qe1 Qf7 Rc8 Ra7 Rc7 Rd7 Rh5 Qf3 Rf5 Ne2 Bdb4 Nc3 Rg5 Kf7 Rh5 e6 Re5 e7 Rf5+ Ke6 Kb3 e8B Ka3 Nd5 Ka2 Nd1 Rf8 Bg7 Rf5 N5c3+ Ka1 Bf6 Rc8 Nb2 Nc7+ Kf7 Nb5 Ke6 Rc7 Bg7 Ne5 Bh5 Ng6 Bf8 Ne5 Bh6 Ng6 Bg7 Nf8+
3N4/qNkrn1qp/p6n/1Bp1R1B1/Rrb5/1P1Pr3/3bQK1B/n1Qr2Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 g4 c5 g5 f5 g6 a6 g7 h3 e5 f3 d3 f2+ Ke2 h2 b6 c3 b7 c2 e6+ Kc7 e7 f4 e8Q f3+ Ke3 Ra7 Na3 Be6 Qe1 Qe7 Ne2 Nc6 Nd4 Nh6 g8Q Qg7 Bg2 f1Q Nc4 f2 Ra4 Ne7 Nd6 Bc4 Bc6 Qfg1 Ke2 f1R Bg5 Rf3 Bb5 Rh3 Qf1 c1N+ Ke1 Rg3 Nc6 Nb3 Nd8 Na1 b3 Q1d4 Ke2 Re3+ Kf2 Qg4 Qe2 Qd7 Re1 h1R Qc2 Rg1 Re2 Rd1 Qc1 Qg6 Re1 Bg7 Re2 Bc3 Qg7 Bd2 b8B+ Kb6 Qd4 Qg7 N6b7 Rg8 Bh2 Rh8 Nd6 Kc7 Qg4 Rb7 Qg1 Rg8 Qh5 Rf8+ Qf3 Rf4 Re1 Rd4 Qe2 Rb6 N6b7+ Rdd6 Bc6 Rb4 Bb5 Kb6 Na5 Qa7 Nab7 Rd7 Qf3 Re6 Re5 Kc7 Qe2 Kc8 Rd5 Re3 Re5 Kc7
1n1RrQr1/4q1p1/b4NQ1/q4pP1/prq4P/B1rQ1Bk1/2b2N2/3nRBK1 w - - 0 1 illegal: No proof kernel
1B3b1r/5P2/NQqR2rk/n2b1Rq1/3pp1bN/2Q3P1/KR1npB1b/1B3n2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 b4 d5 c4 h5 Kc2 e5 Kb2 a5 c5 e3 f5+ Kh6 f6 h3 b6 a4 c6 a3+ Ka2 d3 f7 h2 b7 d2 b5 h4 b6 h3 c7 Bg4 c8Q Qg5 Nc3 Nf6 Nb5 Nc6 b8R Na5 b7 Ra6 Nc7 Ne4 Qb3 d1N Bd3 e2 Bb1 Ne3 Nf3 Nd2 Nh4 Rg6 Rf1 h1Q Na6 h2 Rf5 Nef1 g3 Qg2 Qd1 h1B Qb3 Qe4 Qe6 Qc2+ Bb2 Qc6 Bd4 Be4 Bf2 Bg2 Bc2 B2f3 Rd1 Bg2 Ka1 a2 Qc3 B2f3 Kb2 a1B+ Ka2 Bb2 Bb1 d4 Rd8 Bc1 b8B Bg2 Qeb3 Bd5 Rd6 e4 Re1 Ndc4 Rd1 Be3 Rc1 Ncd2 Rc2 Qc5 Rb2 Qc6 Be1 Bg1 Bf2 Nac4 Qb5 Bh2 Qb6 Na5+
4Q1r1/5P2/1KR1Bb1n/2r2RpP/4pN2/Rqbp1rBq/N5n1/rQ2Bk1b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 Kh4 b6 e5 f5 a5 b7 g5 c5 d5 c6 g3 h3 e3 Kd3 a4 f6 a3 b5 a2 c7 g2 f7 Kg3 h4 Kf2 b6 e2 h5 e1B Be2 Ra3+ Nc3 Nh6 Bg4 Qd7 Nf3 g1R Bh3 Be7 Bf5 Kf1 Rh4 Rg8 Rf4 Bf6 Be6 Na6 b8Q Bb7 c8R Nc7 Rf5 Rg3 Bb2 Ra5 Qb1 Rc5 Bc1 Ba8 b7 Rh3 Be3 Rg3 Nh4+ Rf3 Rf8 Qc8 Ng6 Qd7 Nf4 Qc8 Kc2 d3+ Kb3 d4 Ka4 d2 Bf2 d1Q+ Kb4 Bd2 Be1 d3 Rd8 Qc2 Rd6 Qd1 Rc6 Nd5+ Ka3 Ne3 Kb4 Qd7 Qe8 Ng2 b8B Qc2 Bd6 Qb2+ Ka4 Qb6 Qb5 Qb8 Ka5 Bb7 Kb6 Qdc8 Rb1 a1R Na2 Bb4 Rb3 Bc3 Ra3 Qd7 Qb1 Ba8+ Ka6 Qb3 Bb8 Qd4 Nh3 Qh4 Nf4 Qh3 Ba7 Rc4 Baf2 Rc5 Bg3 Re3 Ra5 Nh4 Rc7 Bh1 Ra3 e4 Rc6 Ng2 Ka7 Rf3 Ka6 Qd5 Kb6 Qb3+
1r2N1N1/b3BP1Q/rB3p2/QK3r1P/2BRR3/1b1p4/qkn1Rp2/nqr3n1 w - - 0 1 illegal: No proof kernel
R7/2KnBp2/NQ1b1qR1/1q3PBr/n1rQpp1B/Pk1b2b1/r2R1b2/3N4 w - - 0 1 illegal: No proof kernel
Nq2rr2/1B1n1p2/b1R2N1p/R5BP/p4P2/n4b1k/3q1n1b/1bKQ1RQQ w - - 0 1 legal: proof: e4 b5 b4 g5 f4 d5 a4 dxe4 Qe2 g4 Qf3 gxf3 axb5 c5 Bb2 cxb4 Ba3 Bg7 Bc1 Bf8 Kd1 Kd7 d4 Ke6 c4 Kf5 h4 Kg4 c5 a5 c6 e5 d5 f2 b6 h6 c7 e3 h5 e4 b7 b3 d6 b2 d7 Ra6 Ne2 Re6 Ng3 Qe7 d8Q Re5 Nd2 b1B Ba6 f1B Bb2 e2+ Kc1 e1N Nc4 e3 Nb6 e2 Qd1 Nd7 b8Q Qd8 Bb7 Ngf6 Ne4 Nc2 Qa8 Bc5 g3 Bh3 Rf1 Ree8 Ba3 Bd4 Be7 Bg2 Ra3 Kh3 g4+ Bf3 g5 e1Q g6 Ng4 g7 Rhf8 g8Q Qb4 Bg5 Bg1 Nf6 Bh2 Ra1 Nf2 Ra2 Na3 Ra1 Nb8 Qg6 Bd7 c8R Bb5 Rc6 Nd7 Qg8 Qb8 Qg6 Ba2 Qb1 Bbc4 Qa7 Bb5 Na8 Ba6 Qe4 Bb1 Qb6 Bfe2 Qh1 Bf3 Qa7 Ne4 Qag1 Nf2 Ra2 Q4d6 Rd2 a4 Rd5 Qb4 Ra5 Qd2+
N1n1n1K1/1rq1PN1Q/6Q1/1rRp2p1/1Rn3Pr/1p3n2/3b2b1/kBRBq1Q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 fxe5 c5 Bg5 cxd4 Bf4 h4 Bg3 hxg3 Kd2 Ke7 Kd3 Ke6 Kc4 f5 a4 g5 h4 d6 e4 d3 a5 f4 h5 b6 a6 b3 h6 b2 a7 d2 h7 g2 Ra4 f3 Bd3 f2 Nc3 b1Q Nd5 f1N Rb4 Nc6 Nf3 Rb8 a8B Nh2 Qg1 d1N c3 Qa1 Bb1 Na7 Bb7 Nf6 Nc7+ Kd7 Ba6 Kc6 e6 Rb7 e5 Ne8 Na8 Qc7 e7 b5+ Kd4 d5 e6 Nb2 c4 Kd6 Ne5 Nf3+ Kc3 Bd7 Nf7+ Kc6 c5 Nc8 Qd4 Qaa5 Rc1 g1R Qf2 Rh1 Qg1 Nc4 Kd3 Rg8 h8Q Rh4 Qh7 Rg6 Rb3 Qe1 Rb4 Nh2 Kd4 Rg7 Rb3 b4 Rb2 Rb5 Rb3 Ned6 e8Q Be7 Qeg8 Ne8 Qg6 Bd6 Q8h7 Bf4 Rb2 Bd2 Rb3 Rg8 e7+ Be6 Qgh5 Bf5 Q5g6+ Ned6 Rb2 Be4 Rb3 Bg2 Rb2 Ne3 Ke5 Nc4+ Kf6 Nf3 Rb3 Rd8 Kg7 Rd7 Kf8 Nb2 Kg8 Nc4 Ra3 b3 Ra4 Qb8 Rb4 Rdb7 Qe4 Qc7 Qd3 Kd7 c6+ Ke6 Qc2 Ne8 Qcd3 Qb6 c7 Qc5 Nd8+ Ke5 Qdg6 Qcf2 Nf7+ Kd4 Bc2 Kc3 Bd3+ Kb2 Bb1 Na7 c8R Qb6 Rc7 Ka1 Rc5 Ra5 Bb5 Qc7 Ba6 Nc8 Bb5 N4b6 Be2 Rb5 Bd1 Nc4
2B2KQ1/q3PrnQ/3nN1R1/p3B1pr/4PB2/2pnNR2/2b1rb2/1Rq3rk w - - 0 1 illegal: No possible last move, all moves rejected
4rbNN/1R1bP1k1/Q1Q1nrp1/n1R1n2q/1pP4q/2K1QB2/qBp2n2/6B1 w - - 0 1 illegal: No possible last move, all moves rejected
Qrn1b1B1/2b1Pp2/1RR1qr1q/qrB1pN2/1Qp5/1N5Q/3n2rP/2Nk2K1 w - - 0 1 illegal: No proof kernel
2K4Q/1r2p3/2N1r3/1B2B1R1/n1PN1N2/nb1b1pr1/qkp1P1Rq/R1q1Q2q w - - 0 1 illegal: No proof kernel
n1k2Br1/nR2p2R/1P1prQ2/3p4/R2q1b2/nQKn1QP1/2N3B1/1Nb3qb w - - 0 1 legal: proof: e4 b5 h4 f5 d4 fxe4 a4 g5 axb5 gxh4 d5 c6 Kd2 cxd5 Ke2 Na6 Ke1 Nb8 Kd2 a5 b4 h5 c4 d6 f4 Kd7 c5 a4 f5 h3 g3 h2 f6 e3+ Kc2 h4 b6 a3 f7 h3 b5 a2 b7 e2 b6 e1B Ba3 Nf6 Qd3 Bh6 f8Q Bc1 Qd4 Nc6 b8Q Na7 Kd3 Bed2 Ne2 Ne8 Bb2 Rh6 Qdg7 Nc7 Bf6 Bf4 Kc3 Ba6 Qg5 Bd3 Bg2 Be4 Bg7 Re6 Qff6 Qh8 Nd4 Qh4 Qh8 Rg8 c6+ Kc8 Qhh5 Na8 c7 Bf3 Nc2 Be4 Rg1 h1N Bf8 h2 Qf3 Nf2 Rh1 Nd3 Qge5 Qg4 Qd4 Qh4 Qa4 Qh8 Qb3 Qh4 Rd1 h1Q Re1 Qg1 Re2 Kd7 c8R Qh8 Rc7+ Kd8 Rb7 Kc8 Bh3 Qh4 Rh2 Qg4 Qe2 Bh1 Bg2 Qg7 Qf3 Qh8 Nd2 Qg7 Rh7 Qg4 Rb1 a1N Rb2 Qg7 Ra2 Qg4 Nb1 Qh4 Ne3 Nc2 Ra4 Na3 Nc2 Qhh2 Bh3 Qhf2 Bg2 Qd4+
Q2b4/1KR1pNp1/B3n3/1q3Pp1/R2Q1nkq/2R2r2/b1P3nb/B1rQ1b1N w - - 0 1 illegal: No proof kernel forced: wxDB
3Rnn2/qnQp1B2/1N2q2R/bk1BNr1r/1p1pKPr1/4P2b/3B4/n1Q4R w - - 0 1 illegal: No proof kernel
7B/1q1p1r2/5QpR/KbP1N3/2n4q/1QRnpB1r/1N1PNk2/bbbq1B2 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 c5 b4 cxb4 g5 a4 g6 hxg6 Qg4 g5 Qg3 g4 Qb3 axb3 h4 Kf7 f4 Kf6 a4 e5 c4 b5 a5 g3 a6 g2 h5 g6 a7 b2 h6 b3 h7 b4 Rh5 e4 Rh4 Nh6 Kd1 Ba6 Ra3 Bb5 Ne2 g1B Nbc3 b1Q Na4 b2 Rc3 Nf7 Rh6 b3 c5 Bd4 Rch3 Nc6 Rc3 Rc8 a8B e3 Bb7 Nce5 Bf3 Rg8 h8N Nd6 Nf7 Nd3 Ne5 Bg7 Bh1 Qa1 Bf3 b1B Ba3 Nc4 Nb2 Rh8 Bb4 Ke7 f6+ Ke6 f7 Kf5 f8Q+ Qf6 Qd6 Qh4 Qd5 Rcf8 Ba5 Rf7 Bc7 Kf6 f5 Kg5 f6 Qa6 Bd6 Rh7 Bf8 Bh8 Bg7 Qb7 Nc1 Kf4 Ke2 Rf8 f7 Kg3 Kd1 Kf2 Ne2 Rg8 Bf6 Rgg7 f8Q Rf7 Qfd6 Bg7 Qe7 Bf8 Bh8 Bg7 Rc1 Bc3 Qf6 Bb4 Rc3 Ba3 Na4 Bc1 Qde6 b2 Qd5 Ba2 Kc2 Bb1+ Kb3 Qd4 Rh1 Rh3 Qde6 Ne1 Kb4 Qh4 Qd5 Bc2 Qde6 b1Q+ Nb2 Bd3 Qb6 Qc2 Qbe6 Qd1 Qb6 Bb1 Qbe6 Nb6+ Ka5 Nd3 Qb3 Nb4 Ng4+ Ke1 Qfe6 Qd8 Na4 Nd3 Rc2 Ba1 Ne5 Rh5 Rc3 Kf2 Nb2 Qg5 Qf6 Rh6 Rg1 Qf4 Rg4 Rh3 Rh4 Qd4 Rh7 Qh4 Rh6 Nc4+
rn3N1R/3p2Qn/2pbnN2/B1B2r1Q/5n2/2KB2q1/Ppb1P3/1Qq1k1rR w - - 0 1 illegal: No proof kernel
N1q3N1/Q1rprp1r/BK1kq3/4b3/R1q1p2P/1b3PQ1/N3BnR1/2n1r2Q w - - 0 1 illegal: No proof kernel
QN4Bb/b1P1q3/1QQ5/B1pr1bk1/1N2qq2/2K1pp2/BPRRn3/3rqn2 w - - 0 1 illegal: No proof kernel
BRRNk2B/2p2qQ1/r1bn4/p4b2/2P3Pn/1Q1N1p2/2qnN3/K1Bb2br w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Bd3 f2+ Ke2 f1N Qe1 f5 Qf2 e5 Rh2 h5 Kd1 a5 c4 e4 Kc2 f4 b4 e3 Kb2 h3 g4 h4 b6 e2 b5 e1Q b7 Qd1 b6 Nh6 Be4 Qd5 d4 Nd7 b8B Nf6 b7 Kd7 Nf3 Bc5 Nc3 Qf7 d5 Ne8 d6 Nf5 Qd4 Ra6 Rb1 Qc2+ Ka1 Nd2 Ne1 Kd8 d7 Ned6 Re2 h2 Ba7 h1B b8Q h3 Ba8 h2 Nd3 Bc6 Re4 Rh3 Ne2 Nh4 Qdb2 Bf2 Bd4 Bg1 Be5 Ke7 Bh8+ Kd8 Qg7 h1B Nc3 Bf3 Re5 Bd1 Ne2 f3 Rf5 Qe8 Rf8 Rh1 Qbb2 Ng2 Qa3 Nh4 Rb8 Ba7 Qb3 Bg1 Qgc3 Ke7 Qg7+ Qf7 Rg8 Be4 Rd8 Bcb7 Rf8 Bf5 Rfc8 Bc6 d8N Ke8
8/2pQ3N/N1K2pnN/r1Q1qP1B/q3Q2R/qn1pn1Bq/k1bP4/3r1b1R w - - 0 1 legal: proof: h4 a5 b4 axb4 e3 d5 c3 bxc3 h5 d4 h6 d3 Qg4 gxh6 Qf3 h5 Qg4 Bg7 Qd1 Bd4 exd4 h4 g4 Kd7 a4 Ke6 f4 Kd5 Kf2 Kc4 Ke3 b5 Ke4 h5 d5 e5 a5 c2 a6 Kb3 a7 h3 g5 f6 d6 h4 Kd5 e4 g6 h2 d7 e3 g7 b4 Kc5 e2 Kb5 e1Q Be2 h3 Na3 Qf8 d8Q Nd7 Nb1 Nb6 Qd4 Nc4 Bb2 Ne3 Bf3 Ne7 g8N Ng6 Bh5 Rh6 Qf3 c1N Na3 Qd1 Rb1 Ka2 Qf2 b3 Nc2 Qa3 Qd7 Rh7 Bd4 b2 Be5 Nb3 Kc6 Re7 Rc1 b1B Nh6 Qg4 Rf1 Qf5 Bd6 Qe5 Nf3 Re8 Ng5 Re7 Nd4 Bc2 Nde6 Re8 Nc5 Bb7+ Kb5 Bg2 f5 Re6 Rc1 Bf1 Kc6 Re7 Na6 Re6 Rg1 h1Q+ Rg2 h2 Nh7 Qg1 Rg4 h1Q+ Re4 Qh3 Rh4 Qgg4 Qg1 Rb8 a8Q Rb5 Qae8 Qga4 Rb1 Nc4 Qc5 Ne3 Rc1 Be2 Rg1 Bf1 Rh1 Ra5+ Kb7 Qc3 Bg3 Re4 Qee6 Qe5 Qec4 Rf4 Qe4 Rf2 Qg2 Re2 Qe4 Re1 Qec4 Q4b4+ Kc6 Rd1 Qe4 Qba4+
2q3rb/q1p1pB1P/2P3N1/QB4pR/rQnq4/r1R3QK/3Rb3/kNn2r2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 f4 b5 a4 g5 axb5 h6 b3 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd4 g6 Qd8 Bg5 hxg5 Kf2 Kd7 Kg2 Kd6 c4 Kc5 h4 Kd4 c5 f5 g7 a5 b6 f3+ Kg3 f2 b4 a4 c6 a3 d3 f4+ Kg2 e3 b7 f3+ Kh2 e2 h5 e1Q b5 a2 b6 Na6 b8Q Qc3 b7 Bg4 h6 Nc5 h7 Ra3 Qd2 Nb3 Nh3 Nc1 Nf4 Nf6 g8B Nd7 Bf7 Nb6 Ng6 Qc8 Qa8 Bh6 b8Q Bg7 Qa5 Nc4 Qbb4 Rg8 Qe1 Bh8 Be2 f1Q Qg3 Qd1 Bf1 f2 Kg2 Qcc2 Rh5 Qa4 Kh2 Bf3 Be2 Ke3 d4 f1R d5 Kd4 d6 Bg4 Bd3 Be2 d7 Qd2 Kh3 Qf4 Qf5 Qa7 d8R+ Qd6 Rd7 Ra4 Qfa5 Ra3 Nc3 Ra4 Rb1 a1R Rb3 R1a2 Nb1 R2a3 Qbe1 Ne3 Bb5 Nc4 Bd5 Qe5 Rf3 Qe3 Qeb4 Kd3 Be6+ Kc2 Bf7 Qed4 Re3 Rb3 Rc3+ Kb2 Be8 Ka1 Bf7 Rf5 Rd5 Rba3 Rd8 Qdb6 Rd1 Qd4 Rd2 Rf1+
k1b1b2r/qp2R3/N2Q1NB1/1p1Rn1p1/1nQn1Q2/b2qr1b1/1P4P1/3K1B1N w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 d3 Qd6 h4 Qh6 Be3 Qxh4+ Bf2 Qh2 Bb6 axb6 e4 Kd8 a4 h5 a5 g5 a6 f5 a7 c5 d6 f3 e5 h4 d4 f2+ Kd2 h3 e6 c4 d5 c3+ Kc1 f4 d7 Kc7 d8N f3 e7 c2 e8B Ba3 Nc3 Nc6 Na4 Nd4 Qd2 Ne7 Ne2 Qg1 Ng3 h2 Nf7 Ng6 Nc5 Ne5 Qf4 b5 Kd2 c1B+ Kd1 Bd2 Rc1 Be1 Nd6 Rb8 a8Q Rh3 Be2 f1Q Nde4 f2 Qa4 Kb6 Qc2 Ka7 d6 Ka8 d7 Rh8 d8Q Rh3 Bc4 Qd3+ Qfd2 f1B Bg6 Rh8 Na6 Qf2 Rg1 h1N Nf6 Qfe3 Rb1 Rh3 Qd6 Nf2+ Kc1 Be2 Nh1 Bh5 Qc3 Nfg4 Kd1 Bg3 Re1 Nec6 Qf4 Qf2 Re7 Nb4 Qd6 Bf4 Qc2 Re3 Qa4 Bg3 Ra1 Qe4 Bf1 Qd3 Rc1 Qg1 Rc5 Qf2 Rd5 Qg1 Bf5 Be8 Qf4 Ne5 Bg6 Qh2 Qc2 Qh3 Qc1 Qe6 Qc3 Qb6 Qc4 Qa7 Rc7 Ne6 Qfd4 Bc6 Rd6 Re4 Rh7 B8d7 Qdd5 Rh8 Re7 Bc8 Qdc5 Re2 Rd5 Be8 Qc6 Nd4 Qd6 Qe4 Qf4 Re3 Qb6 Qf5 Qd6 Qd3+
Nr6/1pq2N1p/2r2qP1/1pRK1kbb/3nnB1B/bQ5N/P3Q2R/1B2q2b w - - 0 1 legal: proof: f4 d5 h4 e5 b4 exf4 c4 g5 cxd5 gxh4 b5 a6 Bb2 axb5 Ba3 Qd6 Bc1 Qd8 Kf2 Kd7 Kf3 c5 Ke4 f3 d4 h3 g4 f2 g5 h2 g6 c4 d6 Ke6 d5+ Kf6 d7 c3 d6 c2 Na3 Qc7 d8B+ Be7 d7 Ra6 Kd5 Kf5 Nc4 Bg5 Nb6 Nc6 Nh3 Nd4 Na8 Rc6 Bf4 c1B Qb3 Ba3 Rc1 f6 Bg2 f1Q Rc5 Qa1 Be7 Qe1 d8N Bd7 Nf7 Bc8 Rf1 h1B e4+ Kg4 e5 f5 Be3 f4 e6 f3 Bf4 Kf5 Rf2 Bd7 Rfc2 f2 Bd8 f1Q e7 Bc8 e8Q Kg4 R2c3 Bh6 Bh4 Bg5 Bd6 Bf5 Be4 Nf6+ Ke5 Rf8 Rc2 Rg8 Qee6 Rb8 Rh2 Qf3 Qec4 Be6 Qe2 Bd7 Bc2 Ne4 Bb1 Be6 Qf2 Bc4 Qd2 Be2 Kd5 Qf6 Bf4 Kf5 Qdd3 Bg4 Qe2 Bh5
1q2B3/1pNqRp2/Pkn1n2n/4Pp2/1b2Q3/2Qbr3/1qRBn1rK/3QN1R1 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 g5 cxd5 gxh4 f5 e6 Ba3 exf5 Bb2 Ke7 Bc1 Ke8 Kf2 Kd7 d4 c5 e4 Kc7 a4 h5 g4 h3 Kg3 c4 e5 h2 a5 c3 g5 b3 a6 b2 g6 c2 g7 Nh6 g8Q Qd7 d6+ Kb6 d5 Nc6 Nc3 b1Q Bb5 Qb2 Bd2 c1N Qgg4 Nd3 Ra2 Nf4 Nf3 Ne6 Rg1 h1N+ Kh2 h4 Ne1 h3 Qe4 Ng3 Ba4 Rg8 Nb5 Ne2 Nc7 Rg3 Qdc2 Re3 Qc3 Qa1 Rc2 Qb2 Kh1 h2 Kg2 Qe8 d7 Bb4 d8R Bd7 d6 Qf8 Re8 h1Q+ Kf2 Qg8 Re7 Qb8 Kf1 Qh5 Kg2 Be8 d7 Qh4 Qd5 Qd4 d8Q Qd3 Qdc4 Qd7 Qe4 Qd5 Nf3 Na5 Bc1 Bb5 Rd1 Qa7 Rg1 Rb8 Qd7 Rg8+ Kh2 Qb8 Ne1 Qc6 Qd1 Bd3 Bd2 Rg2+ Kh1 Qd5 Bd7 Nc6 Be8 Rg7 Kh2 Qd7 Qf4 Rg4 Qe4 Rg2+
2R4B/1p1p2B1/1k1bQ2K/1p3n1n/br1r2Pq/1Prq1n1N/NR6/2RrN2Q w - - 0 1 illegal: No proof kernel forced: wxLB
nN1r3n/p3q1N1/4r1r1/pPbR4/Q1PrBq1k/q1NRpb2/8/1QBK1B2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 g5 h4 gxh4 a5 f5 a6 bxa6 exf5 a5 b4 Kf7 f4 Kf6 c4 h5 g4 e5 b5 d5 Be3 e4 Bf2 d3 Be3 d2+ Ke2 h3 Ra2 d4 Ra1 d3+ Kf2 h4 Qc1 d1R Ra3 d2 Ke2 h2 Nc3 h3 Nf3 Bb7 Ng5 Nh6 Qb1 Qe7 Ne6 Nd7 Ng7 Rg8 Rg1 h1R g5+ Kf7 g6+ Kf6 Rb3 h2 Rg5 Rd8 Rh5 Nb6 Ra3 Rc1 Rb3 Rc2 Kd1 Nf7 Rg5 Qa3 Rh5 Bc5 Rg5 Nh8 Rh5 Ke7 f6+ Kd6 f7 Ke7 f8N Kf6 f5 Na8 Rg5 Rg1 Rh5 h1Q Bh6 Qh4 Nd7+ Ke7 Nb8 Kf6 Rg5 Rge8 Rh5 Re6 Rg5 Ke5 f6+ Kf4 Rd5+ Kg3 f7 Qe7 f8Q Kh4 Qf3 Ra2 Qfd3 Rg3 Qa1 Rb2 Qdb1 Rd3 Qaa2 Rd4 Be3 Qb4 Qa4 Qa3 Nh5 Rc2 g7 Bc6 g8B Ra2 Bf4 e3 Bh7 Bb7 Be4 Rb2 Be5 Bc6 Ke2 Rc2 Ng7 Rc1 Bfg2 Rg1 Bf1 Rgg6 Kd1 Bd7 Kc2 Ra6 Na2 d1Q+ Kc3 Qg4 Kc2 Rd1 Bb2 Qf4 Bc1 Rd4 Rd3 Bg4 Nc3 Bh5 Na2 Bf3 Nc3 Bg2 Kd1 Rae6 Qac2 Bh1 Qa4 Bf3+
3R3b/pr1r4/3N1Qnp/5Bq1/PKN2kn1/n1Q2pq1/1NR1P2R/1Bq3nb w - - 0 1 legal: proof: f4 e5 h4 exf4 b4 c5 bxc5 g5 Ba3 gxh4 Bb2 Qb6 Bc1 Qd8 c4 d6 c6 Qa5 c5 Qb6 c7 Qb3 c6 Qd3 Ba3 Qd5 Bc5 dxc5 Qa4 Qd7 Qd1 Qd8 g4 Ke7 d4 Ke6 Kd2 f5 Kc3 b5 a4 b4+ Kc4 h6 g5 b3 g6 h3 d5+ Ke5 g7 h2 d6 f3 d7 f2 Qc1 b2 Qg5 Nf6 g8Q Bb7 c8R Bg7 c7 Rh7 Bh3 f1N Nd2 b1N Qh5 Bh8 Ra2 Nc6 Qf3 f4 Qgg2 Na3+ Kb3 Ng4 Rc2 Qg5 d8N Rb8 Qgf2 Rd7 Qc3+ Kf5 Nf7 Ne7 Re8 c4+ Kb4 Ng6 c8B Bc6+ Qb6 Rb7 Ngf3 Bd5 Ne1 Be4 Qd3 c3 Nc4 Nd2 Rd8 Nf3 Qe3 Bc6 Nd3 Ng1 Ndb2 Bg2 Qd4 f3 Qg7 Kf4 Nfd6 Nf6 Bf5 Ng4 Rd2 c2 Qc3 c1Q Bb1 Qe1 Rc2 Qg3 Nd2 Rg7 Bf5 Rgd7 Nd2c4 Nh3 Re1 h1Q Rf1 Qg1 Rf2 Bh1 Rh2 Qf1 Nb5 Ng1 Qbf6 Rbc7 Nbd6 Qd1 Qf8 Qc1 Qff6 Rb7+
K5R1/p4QRr/2N3bp/q1n3P1/1BQpq2k/1Rr3Nb/1q2n2P/1r2rN1B w - - 0 1 legal: proof: e4 c5 f4 b5 d4 cxd4 a4 bxa4 Ba6 g5 Bf1 gxf4 e5 d5 Ke2 Bg7 Kf2 Bf6 Ke1 Bh4+ Kd2 Be1+ Ke2 Ba5 Kf2 Bc7 Ke1 Bd6 exd6 Bd7 Nh3 Bf5 Ng1 Bc8 Kf2 e5 Kf3 f5 g4 Kf7 c4 Kg6 b4 Kg5 d7 d3 b5 d2 c5 a3 b6 h6 c6 a2 b7 d4 c7 e4+ Kg2 f3+ Kf2 f4 Qe2 d1B Nd2 Na6 b8N Nf6 Nc6 Rh7 Ba3 Nc5 Bb4 Nd5 Qc4 Bc2 Bg2 Nc3 Qf7 Ne2 Rb1 a1Q Nf1 Kh4 Rb3 Qb2 g5 Qe7 d8R Bh3 c8Q Bb1 Qce6 Rc8 Rg8 Bd3 Qc4 e3+ Ke1 f2+ Kd1 Nc1 Ne2 f3 Neg3 Ne2 Rg1 Bg6 Bh1 Qe4 Rg2 Qa3 Rg1 Qa5 Rg2 Nd3 Kc2 Nc5+ Kb2 Nf4 Rg1 e2 Rg2 e1R Rg1 Qc7 Ka3 Ne2 Rg2 Ne6 Ka4 Nc5+ Kb5 Rb1 Ne3 f1Q Rf2 Qc1 Nef1 Qb2 Rg7 Nf4 Re2 f2 Re1 Ne2 Rg8 Nd3 Ka6 Qa5+ Kb7 Rc7+ Ka8 Nc5 Ne3 f1R Rc1 Rd1 Nef1 Re1 Rcc3 Qf5 Re3 Qg4 Ree8 Qe4 Rg7 Re7 Reg8 Re5 Qfd5 Rf5 Qe6 Rf3 Qf7 Rc3
2R2nk1/p1b5/rq4Pq/1pn4N/PB1b1BBr/R2Q1qQb/q1pN1KN1/8 w - - 0 1 illegal: No possible last move
3Bn2R/p2R1b2/2Q1BP1r/2p1n3/b4K2/rPbN2B1/2b1k1pQ/NRq1q1r1 w - - 0 1 illegal: No proof kernel
N6r/p2bbR1R/2P1KQ2/qbk2rBp/n1n5/P1r1pN2/B2qb2B/N5Q1 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b3 g5 b4 gxh4 bxc5 d5 Qe2 dxc4 Qf3 Qd3 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 b5 Ke5 c3 g4 e3 d4 h3 f4 b4 a3 e2 f5 e1Q+ Be3 h2 g5 c2 f6 c1R f7 b3 g6 b2 g7 Ba6 Ke6 Qda5 Nf3 Nf6 g8N Ng4 Bc4 Nd7 Nf6 Rc3 Nd5 Nb6 Nbd2 b1B Nc7 Bg6 Nb3 Qd2 Bf4 Bb5 Qg1 Ne3 Rf1 Na4 Na1 h6 Bb3 Nc4 Ba2 Rd8 Be5 Rd5 Na8 Bd3 Bg3 Rf5 Bc7 Be2 d5+ Kb7 d6 Kc6 d7 h5 d8B Bh6 f8Q Bg5 Qf6 Bh4 Kf7+ e6 Bd6 e5 Ke6 e4 Be5 e3 Rb1 Ba6 Rb7 Bb5 Rh7 Bg5 Qg2 Bh4 Rf1 h1B Qg1 Bg5 Bh2 Bg2 Qd4 Be7 Qf6 Bh3 Kf7+ Kd5 c6 Kc5 Rf2 Rf4 Rf1 Bd7 Rf2 Be8+ Ke6 Bg6 Rg2 Be8 Rgg7 Rf5 Rf7 Rc1 Bdc7 Rc2 Bcf4 Rc3 Bg5 Bd7+
2K4R/1BR5/1p2Nn2/2Bb1bP1/nr1N3P/pQ1bb1q1/1p1Q2Nb/1kB2rb1 w - - 0 1 illegal: No proof kernel
2Nb1r2/2r4p/K1b1q1B1/p7/PQB2Qb1/N5P1/bQ3RRp/nb1k1Bnb w - - 0 1 illegal: No proof kernel
4R1Q1/2r4Q/k1r4r/4qb2/3pR1Pp/PQ3Nbp/2nNRBKn/1r3nnB w - - 0 1 illegal: No possible last move
3R1Q2/3RK1N1/1b1N4/kbnq1B1P/1p1n2Nr/P5pR/2b1p1rr/BbQ4r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 g5 Kd3 d5 f4 Kd7 h4 Kc7 c4 Kb6 a3 e5 f6 b3 f5 b2 f7 g3 f6 g4 c5+ Ka5 c6 b5 c7 g2 Qe2 b4 Qe4 g3 Qg6 Na6 Rh3 Bc5 f8Q Bd7 c8R Nh6 f7 Nf5 Qc6 Bb6 Nf3 g1R Nc3 Rg2 Ne4 b1B+ Qc2 Be8 Bb2 Qd6 Nh2 Bb5+ Rc4 Re8 Ng4 Re6 Ra2 Reh6 Ba1 Qc6 Nd6 Qc5 Be2 e4+ Kd2 d3 Rd4 Qc6 Qc1 Nc5 Rb2 Ng7 Ke3 d2 Kf4 d1B Ke5 e3 Rb3 Nge6 Bd3 e2 Bf5 Bdc2 Rbd3 Rh5 Kf6 R5h7 Re4 d4 Ke7 Qd5 Rd1 d3 Rd4 d2 Rd3 Rg7 Rd4 Rh6 Rd3 Nd4 h5 Rf6 Qe8 Rg8 f8N Rh2 Ne6 Rgf8 Rh1 d1R Ng7 Rg1 Qf7 Rgg2 Rhd1 Rd8 Qf8 Rc8 Bd7 Rf1 Bf5 Rfh1 Rc3 Nd7 Rc7 Nc5 Rd7 Re8+ Kf6 Re3 Rd3 Rf3 Ke7 Rf4 Rd8 Nde6 Nf6 Qa8 Nc8 Qe4 R3d7 Qd5 Nd6 Rh4 Ng4 Nd4
1q1n3b/1R1n4/1Q1N1pr1/2r1rp1K/3B1k2/PPr1n2b/2QRp1B1/B1Nn2Q1 w - - 0 1 illegal: No proof kernel
1R1Nnbnq/5rB1/1P1r3Q/k2r3r/4B2R/B2pPbQb/2p1N1p1/Kb3N2 w - - 0 1 illegal: No proof kernel
1kB3BQ/4n1P1/bp2b2p/R3b3/1n5P/Qq1rr2N/3R1p1N/KQr1Nrb1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 g5 a5 b6 axb6 gxf4 b4 Nf6 b5 Bg7 b7 Nfd7 b6 Na6 b8N Nf6 b7 Bf8 Bb2 Ng8 Bd4 Nh6 Be3 Ng8 Bb6 cxb6 g4 e5 c4 f5 h4 f3 d4 h6 Kd2 e3+ Kc2 f2 Kb2 f4 g5 e2 d5 e1R d6 e4 c5 f3 c6 e3 c7 e2 g6 Nb4 g7 a5 Rh3 a4 Rg3 Ne7 Nh3 Be6 Nc6 Kd7 Na3 Rc8 Nc2 a3+ Kb1 Rg8 b8Q a2+ Kb2 Qe8 Qa8 Qf7 Qb1 Rh8 Bg2 Rf1 N6d4 e1R Qa3 Re3 Ne1 Rd8 Rg5 Kc8 d7+ Kb7 c8B+ Kb8 Rd5 Qg8 Nec2 Rc1 Ra5 f1B Ne1 Ba6 Bf1 Qf7 Bc4 Qg8 Ng2 Rf1 Ne1 f2 Ndf3 Qf7 Qf5 Rg8 Rd1 a1B+ Kb1 Be5 Rd2 Bh2 Qfd3 Bg1 Nh2 Qf3 Ka1 Qd1+ Qb1 Qb3 Bb7 Rc8 Bcd5 Rc1 d8Q+ Nc8 Rb2 Bd6 Rd2 Rf8 Qe8 Rff3 Qh8 Rd3 Bc4 Rfe3 Bcd5 Kc7 Bc4 Ne7 Bc8 Kb8 Bd5 Bf5 Bf7 Be6 Bg8 Be5+
BR2bN1Q/Bn1rnPbK/3qrn2/1kP4Q/p1p1R3/3p1N2/1n3r2/1B1r2N1 w - - 0 1 illegal: No proof kernel
2rkb1N1/1QpB1p1r/NPnQn2R/1b2R3/B5pn/5P1K/3B4/qnNr1r2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 axb6 Bh3 b5 Bf1 b4 c3 b5 Bc4 e6 Qe2 b3 Bd3 b4 Qd1 b2 Be2 b3 Bf1 Bb4 cxb4 Qf6 Na3 Qg5 Nb1 Qd8 a4 g5 h4 e5 d4 e3 b5 e2 d5 e4 h5 g3 f3 g2 Kf2 e1R Kg3 e3 d6 e2 d7+ Ke7 a5 Bb7 h6 Rh7 a6 Qf8 d8Q+ Ke6 b6 Ra7 Nc3 b1N Ra5 b2 Na4 Ra8 a7 Nd7 Kh3 Nc5 Qb8 Ke7 Bd2 Ne6 Re5 Bc6 Nc5 Qg7 Qb7 Rc8 a8B Kd8 Na6 Be8 Rh2 Ne7 Rh1 Rh8 h7 Nc6 Rh2 Nc3 Rh1 b1B Rh2 Bd3 Rh1 Rg8 h8N Bb5 Ng6 Nb1 Ne7 Qf6 Rh2 Rg7 Ng8 Rh7+ Kg3 Ng7 Rh6 Ne6 Kh3 Qg7 Qc2 Rc1 Qg6 e1N Ne2 Rd1 Nc1 g1R Bc4 Rf1 Bb3 Ng2 Ba4 Nh4 Qd3+ Ncd4 Qa3 Bd3 Bd7 Bb5 Qd6 Nc6 Qb8 Ne7 Bac6 Qh8 Qb7 Qf6 Be4 Nc6 Bc2 Qh8 Ba4 Qg7 Re2 Qa1 Re5 g4+
n3rB1B/1PQ5/1qN1n3/1b1bnp2/2NQbpP1/Q1bR1np1/2K1R3/4rk1B w - - 0 1 illegal: No proof kernel
1Bb5/1bqnR2q/7p/B1r3QP/R1r3p1/2Nbpb2/QKQ1q1Pk/b2B2N1 w - - 0 2 illegal: No possible last move
1bQ3qq/1p1N1R2/1P2PQBR/n2QbK2/R6q/pnB2bqr/1qp3N1/2k5 w - - 0 1 illegal: No proof kernel
bbrbbN2/3pB1Pp/3bQp2/4B2P/1RqN2Kq/k4B1Q/1R5Q/2qr1n2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 Be3 bxa4 Bc1 g5 e4 Nc6 Ba6 Ne5 Bd3 gxf4 Ba6 f6 Bf1 Nf7 e5 Qa5+ Nd2 Kd8 e6 Kc7 exf7 Qb6 Nb1 Kc6 Kd2 Qc7 Ke1 Qd8 Ke2 Kc5 Kf3 Kb4 c4 e5 g4 a5 h4 e4+ Ke2 e3 Kf3 e2 c5 e1Q g5 d3 g6 a3 c6 a2 c7 d2 g7 a4 Nc3 a3 Nge2 Be7 f8B Nh6 Nb5 Ng4 Rb1 a1B Nbd4 a2 Ne6 Ne3 Bg2 Nf1 N2d4 Bb7+ Kg4 f3 c8Q f2 Rh2 Qc7 Qe2 d1B Bf4 Qc4 Be5 Bd5 b3 Ka3 b4 Bd8 Bf3 Ra6 b5+ Rd6 b6 Ba8 b7 Bc2 b8Q Bg6 h5 Be8 Qe3+ Bc3 Rb6 a1B Qe2 Bb4 Be7 Rd5 Rh4 Bd6 Nf8 Bb2 Rh2 Bc1 Rb4 Bf4 Qb6 Bb8 Qe6 Rg8 Nb3 Rd1 Nd4 Qc1 Qcc2 Bg3 Qcf5 Qc4 Bc7 Bd6 Q2e5 Qc1 Rg2 Qc4 Qh2 Qc1 Kh3 Bc5 Bb6 Ng3 Bc6 f1Q Ng6 Qfc4 Rd2 Bf7 Rdb2 Nf1 Bf3 Bdc7 Qg4 Re8 Nf8 Rc8 Qgf5 Bd8 Bc7 Bg6 Be5 Bcd6 Qg4 Qe4 Qgg2 Qe1 Kg4 Be8 Qgh3 Qh4+
6B1/5pr1/QQbb2N1/3p1P1r/1Rqq1p1q/2B1nBN1/1RK2P1k/rR3rr1 w - - 0 2 illegal: No proof kernel
q7/r1k2p2/5RQ1/2NP2Kp/2pRq1nn/B2n1Qrq/BnP1R1bQ/1n4N1 w - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 g4 dxe4 h4 a5 g5 Bh6 g6 Bg5 hxg5 axb4 Ke2 Kd7 d4 b5 a4 c5 a5 h5 d5 e5 g7 e3 Kf3 e4+ Ke2 f3+ Ke1 f2+ Ke2 c4 g6 b3 a6 b2 a7 b4 Qe1 b3 Qa5 Nh6 g8Q Nc6 g7 Nb4 Rh2 Nd3 Qc3 Kc7 Bh3 Ng4 Nd2 b1Q Ba3 b2 Nb3 f1N Qf8 Nd2 g8Q Nf3 Qg6 Nh4 Nc5 Rg8 Qfg7 Qa2 Rd1 b1N Qge5+ Qd6 Qf4 Nb2 Rd4 Qb3 Qf3 Qd8 Rf2 Qf8 Qh1 Be6 Rf6 Qc8 Qd2 Rg7 Qf3 Qcb7 Ke1 e2 Qh7 Ne5 Kf2 e1N Qfd3 Kd6 Ke3 Rgg8 Kf4 e3 Qh2 e2 Qd1 Qc8 Bg4 Qbb7 Bh3 Rg3 Qg6 Qbb8 Bg4 N1d3+ Kg5 e1Q Qf3 Qbb7 Rff4 Qe2 Rfe4 Kc7 Re3 Rb8 a8R Qd7 Ra5 Ra8 Ra6 Ra7 Rb6 Bf5 Rf6 Qa8 Ree4 Qe6 Re3 Qf1 Re2 Qee8 Kh6 Bc8 Bd7 Qg2 Bc6 Bh3 Ba4 Ng4+ Kg5 Qe4 Bb3 Qf1 Ba2 Qg2 Qh1 Qh2 Qhg2 Qh1 Qgf2 Bf1 Q2g2 Qh3 Qh2 Bg2
b3K2n/3p3p/1b1B2Br/1k4P1/bq1bp1Qq/Q2P2nN/3Nq3/RRB2Nb1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c4 gxh4 Qa4 b5 Qa3 Ra5 Qf3 b3 Qe2 b4 Qd1 Rb5 cxb5 Ba6 Ne2 Bb7 Ng1 Bc8 Ke2 c5 Ke3 e5 g4 h3 f4 h2 a4 c4 d3 c3 g5 c2 a5 b2 b6 b3 a6 Ke7 b7 Kd6 f5 Kc5 f6 Kb5 a7 Qe7 a8N Bg7 f7 Na6 f8Q Nc5 b8B Bb7 Qh5 Nh6 Qd1 Rg8 Ra2 Nf7 Nd2 b1Q Qc8 b2 Bd6 Nh8 Nb6 Ba8 Ke2 e3 Qc7 Ne4 Kf3 e2 Kg4 e1B Kf5 Bf2 Nbc4 Bb6 Ne3 Ng3+ Kg4 e4 Ra1 Qa2 Qa7 b1B Be2 Bgd4 Nh3 Rg6 Nef1 Rh6 Qa3 Qb2 Rg1 h1Q Kf4 Ba2 Bh5 Bb3 Bg6 Ba4 Qg4 Qh2 Rb1 Qe2 Ra1 Qe8 Rh1 Qb4 Rg1 Qb8 Rh1 Bg1 Ke5 Qf8 Rb1 Qff2 Ra1 Qfe1 Kf6 Bbd4+ Ke7 Q1f2 Bb2 c1B Ke8 Qfe1 Nb1 Bce3 Bc1 Bb6 Nbd2 Bed4 Ne3 Nh5 Bb2 Bh2 Rf1 Qg3 Rfb1 Qh4 Nef1 Bhg1 Bc1 Ng3
4q1r1/2qn3p/R1N4P/3KBPrk/bqN2Rp1/B1q2Q2/Q1p1Qn2/2nr3B w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g3 f5 Qc2 f3 Kd1 f2 Qb3 f4 Kc2 Bd6 Qa4+ Kf8 Qb3 f3 Qa4 Bf4 gxf4 Bf5+ Kb2 Bd7 Qd1 Ke8 Kc2 Bc8 h4 Kf7 a4 Kg6 e4 c5 d4 b5 e5 c3 Kb3 c2 f5+ Kh5 d5 g5 a5 g4 d6 Qc7 a6 Nd7 e6 Ngf6 e7 Rg8 a7 Rg5 Ba3 Ne4 Bg2 f1R Ne2 f2 Qd5 Rd1 Nd2 f1Q Nd4 Qe1 Rf1 Nf2 Bh1 Qe4 Nc4 c1N+ Kb2 b3 Kc3 b2 Nc6 Rb8 a8Q b1Q Qa6 Qe6 e8Q+ Qf7 Qee4 Qe8 Qe2 Ra8 Qdf3 Qd3+ Kb2 b4 Qa7 Nf6 d7 b3 d8B Nd7 Bf6 Qde3 Be5 Qc3+ Kb1 b2 Qa4 Qe1 Kc2 Ba6 Qa5 Bb5 Qad2 b1Q+ Kc3 Ba4 Ra2 Kh6 h5 Rb8 Nb6 c4 Kd4 c3 Kd5 Qb4 Nc4 Nfd3 Qb2 c2 Ra1 Qec3 Qa2 Rg6 Rf2 Kg5 h6 Kh5 Qfe3 Rg5 Rf4 Qee7 Q3f3 Rbg8 Rb1 Qe8 Rb2 Qbe7 Rb6 Qeb4 Ra6 Nf2+
NrKR3q/q2Rp3/B1p1P2Q/1qP1B2n/1Q1bNp2/2r1n1nk/2r5/2B2N1r w - - 0 2 legal: proof: e4 g5 b4 a5 e5 axb4 e6 dxe6 Ba3 e5 Bc1 e4 h4 gxh4 f3 e3 Bb2 Bf5 Bc1 Be4 fxe4 Qd4 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Kd3 Ke6+ Kc4 b5+ Kc5 f5 a4 h5 c4 f4 d4 b3 g4 b4 g5 h3 a5 c6 e5 Kf5 a6 b2 e6 e2 g6 Kg4 d5 h4 d6 b3 g7 h2 d7 h3 a7 Na6+ Kd4 Rb8 a8N Nb4 Kc5 Nd5 Ra7 Ne3 Qd2 e1R Ne2 Nf6 g8Q+ Bg7 Ng3 Re2 Qh7 Nh5 Qb4 Rc2 Nc3 b1Q Nce4 b2 Qh6 Qa2 Rg1 Qf8 d8B h1R Bc7 b1Q Be5 h2 Rd7 Qa4 Be2+ Kh3 Nf1 Rh7 Rg6 Qh8 Rf6 Qaa1 Rf8 Bf6 Rc8 Rg7 Rcd8 Rg3 Rb7 Qa4 Kb6 Qa7+ Kc7 Qb3 c5 Qb1 Bd6 Bd4 Be5 Qb2 Ba6 Rf3 Qc4 Qb5 Kd7 Nd1 Qb4 Rfc3 Kc7 Ne3 Kd7 Rg1 Kc7 h1N Kd7 Ng3 Rc7 Rb7 Kc8 Rh1 Rd7 Rb8+
3bbqQ1/1R1np2p/KQn1B2N/4p2n/Qb2P2B/3P1R2/1k2b3/RN2qqr1 w - - 0 1 illegal: No proof kernel
5bB1/QqRqk1nr/5p2/p1K4Q/1P1N4/N1BrNP2/rpbq4/rb3RQ1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 cxb6 Bc4 b5 Bf1 b4 a3 b5 Ne2 b3 Ng3 b4 Ne2 b2 Ng1 b3 Rh2 Nc6 Rh1 Nb4 axb4 Bf5 Ra4 Bd7 Ra1 Bc8 Ke2 e5 Ke3 h5 c4 a5 g4 h3 d4 h4 c5 h2 c6 f6 g5 h3 g6 Bg4 g7 Be6 c7 Qd7 c8N Rh7 d5 Bf5 d6 Nh6 Na3 b1B g8Q b2 Nb6 Rd8 Nbc4 Bg6 Qh5 Nf5+ Ke2 e3 f3 e4 Bd2 Ng7 Bc3 Qb7 d7+ Ke7 Nd6 Bf5 Ndc4 Bc2 Rc1 Bb1 Kd1 e2+ Kd2 e1R Ne2 Bc2 Rg1 h1Q Ke3 h2 Kd4 e3 Kc5 Bb1 Bh3 Bfc2 Nd4 e2 Rf1 Rd1 Bf5 e1Q Be6 Qd2 Ne3 Qhg2 Bf7 h1R Bd5 Qh3 Be6 Nf5 Qg3 Ng7 Bg8 Ra8 Qb8 Ra6 Qa7 Rd6 Nb3 Rd3 Nd4 Qf5+ Kc4 Kd6 d8Q+ Qfd7 Qdb6+ Ke7 Kc5 Qf2 Qb5 Qg3 Be1 Ba2 Rg1 Rc3+ Nac4 Bd3 Rc2 Rb3 Na3 Qh4 Rc3 Bc2 Kc4 Rb1 Qbg5 Qh2 Rf1 Rg1 Rf2 Rf1 Qg1 Rd1 Nab5 Rd3 Bd2 Ra1 Rf1 Bab1 Be1 Rba3 Bd2 R3a2 Na3 Qg4 Be1 Qbc7+ Kb5 Qgh3 Rc5 Qf5 Bc3 Qfd7+ Kc4 Qb7 Rc7 Qg2 Kc5 Qd2
6b1/1NnQpknp/3q2rK/3Rn3/3NPp1P/B2r1Nr1/3B1q2/R2nQqQ1 w - - 1 2 illegal: No possible last move, all moves rejected
q1n3nR/QK2p3/2B3rN/Qp2nN2/1B1R2q1/2q1PQ2/1P1b2rp/N1kq3r w - - 1 2 illegal: No possible last move
k1K1rq1N/1rpB2Bq/n4p1n/2N3Qr/6Q1/1nPP2BN/1RbRq2p/5q2 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1Krr2/2p1r1p1/4k1PQ/bR1nNr1N/2q1r1bB/1b1p2PB/rQ6/2R4R w - - 0 1 illegal: No possible last move
b4k1N/1B3P2/2p4r/KN1qR1n1/r1R1Np1Q/5prr/B2bQP2/1b2Brr1 w - - 0 1 illegal: No proof kernel
7Q/kP6/rnn3Bb/3p2Nb/nR1Q1rp1/1NKP4/1pbBBRr1/1r2N1r1 w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c4 hxg4 Bh3 b5 Nc3 b3 Nb1 b4 Bg2 Qg5 Bf1 Qb5 cxb5 Rh3 Qc2 Rh5 Qd1 Rh8 e4 Kd8 a4 g5 h4 d5 e5 f5 d3 c5 Kd2 Kc7 e6 Kb7 b6 b2 h5 f3 e7 c4 e8N f2 h6 b3 a5 c3+ Ke2 f4 h7 g3 Qd2 c2 Rh4 g2 Rg4 f3+ Ke3 Bh6 Kd4 Ne7 Be2 f1R Qe3 f2 Ra2 Nd7 Bd2 c1N Nc7 Nc6+ Kc3 Rg8 h8Q Ra6 Nf3 g1R Ne6 Rd1 Qc5 f1R Ne1 Rf4 Qcd4 Rg6 Ra4 Rg8 Rg2 Rg7 Rf2 Rg2 Na3 b1B Rb4 b2 Nac2 Nb3 Na1 Nbc5 Nb3 Bc2 Bc1 Re7 Bd2 g4 Ng5 Rb1 Qg8 Re3 Qh7 Reg3 Qhh8 Ra7 a6+ Kb8 Ne4 Rg1 Ng5 R3g2 Nh7 Ra8 a7+ Kb7 Qf8 Nf6 Qh8 Be6 Ng5 Nfd7 Qe3 Bf7 Qed4 Na5 Rf3 Bh5 Rf2 Raf8 a8B+ Kb8 Qhg7 R8f6 Bc6 Rd6 b7 Ka7 Bb5 Ra6 Qh8 Nb6 Be8 Nc6 Bg6 Nca4+
1n3b1r/3q2qP/B1R4n/p2R1Qq1/2q3Q1/2pNB2R/qNP1pK2/kb3qQ1 w - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 h5 a5 hxg4 a6 bxa6 Ra4 a5 Ra1 a4 f4 e5 Kf2 a5 Bh3 e3+ Ke1 e4 Bg2 Rh5 Bf1 Re5 fxe5 Ra6 Na3 Rh6 Nb1 Rh8 h4 Kd7 b4 Kc6 d4 Kd5 b5 g5 e6 f5 e7 c5 e8Q c4 h5 e2 h6 g3 h7 a3 b6 f4 b7 g2 Rh4 g4 Kf2 f3 Kg3 e3 Rh2 a2 Qg6 f2 Rh6 e1Q Nh3 Be6 Na3 Qb4 Qg5+ Ke4 d5 Qd7 d6 c3 Bc4 f1Q Nf4 e2 Ba6 Qc4 Nd3 Kd4 Rg6 Nh6 Qf5 Bg8 Rb1 a1Q Rb6 Bd5 Rc6 Qaa2 Rg5 Be6 Rh5 Bf7 Rh3 g1Q+ Kh4 g3 Qg4+ Kd5 Be3 g2 Kg3 Qf6 Qf1 Qg5 Qf4 Qd1 Kf2 Be6 Qf6 Qdg7 d7 g1Q+ Kf3 Bg8 d8R+ Qd7 Qg7 Qgf1+ Kg3 Qff6 Qg6 Qg7 Kf2 Qf1+ Kg3 Qb5 Nc4 Be6 Ncb2 Qbc4 Bf4 Kd4 Qf5 Bd5 Bd6+ Ke3 Bc5+ Kd2 Bg1 Qdf7 Rd7 Be6 Rd5 Qd7 Bb6 Qfb1 Kf2 Qh1 Nb4+ Kc1 N4d3+ Kb1 Be3 Ka1 Rcc5 Nc6 b8Q Qd1 Qd8 Nb8 Rc6 Qc1 Qc7 Bg8 Qh2 Qf1+ Kg3 Be6 Qg1 Qcd4 Rh1 Qab1 Re5 Ba2 Rh3 Qc5 Rd5 Qc4 Nd1 Qbb3 N1b2 Qa3 Ne5 Bb1 Ned3 Qc1 Kg2 Qaa2 Kf2 Qf1+
q1BK2n1/P1r1qp2/NNR1q1p1/R5B1/4nbP1/4Nkrq/QQ3p1R/1qq5 w - - 0 1 illegal: No extended proof kernel
r1Q5/2rprb2/1pQ4P/r2P1BrR/1n2p2r/bk2KN1N/1q4Rq/5RBB w - - 0 1 legal: proof: e4 a5 c4 f5 b4 fxe4 g4 h5 c5 hxg4 c6 Na6 Qc2 Nc5 Qb3 b6 Qd1 Nb7 cxb7 axb4 Ke2 Kf7 b8Q Ke6 f4 Kd5 d4 Kc4 a4 g5 h4 e5 a5 c5 h5 e3 f5 g3 a6 b3 a7 g4 f6 g2 f7 b2 Nh3 g1R Ra6 g3 Ng5 g2 Nh3 Ne7 Qe1 Qc7 Qd1 Bb7 Ra3 Bd5 Qe8 Nc6 Ra5 Nb4 Qe1 Kb3 Rh2 c4 Qc8 c3 h6 c2 Qf2 Rh1 Qf6 g1R Qc6 Rg5 Rg2 Bc4+ Kf3 e2 Be3 e1R Bd3 c1R Bg1 Bd6 f8R Bf7 Bf5 Re2 Na3 b1Q Nc2 Qb2 Ne1 Ra1 Rc5 Ra5 Rb5 Rc2 Ke3 Rh7 Nf3 Be7 Nf4 Rh4 Nh3 Rb8 a8B Qd6 Q6b7 Rc7 Qc6 Rhg7 Bb7 Rba8 Be6+ Ka4 Qd5 Be8 Nh2 Rgg4 Rf1 Na2 Rg3 Bf8 Qe4 R4g6 Rd5 Kb3 Rg5 Rf7 Rh5 Be7 Bf5 Rg5 Rc5 Bf8 Rc2 Be7 Qg2 Bf8 Bf3 e4 d5 Be7 Qd2 Qg3 Qc1 Ba3 Re2 Qge5 Bh1 Re7 Qc6 Nb4 Rg2 Bf7 Nf3 Qh2
R1R5/1Qp2p1k/2n3p1/bNP1bqB1/2r5/PbBr2N1/R1b1Bq1b/Q3b2K w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 Ke2 a5 Ke1 axb4 f4 hxg4 Kf2 e5 Qf3 e3+ Ke1 e4 Qe2 Nd7 Qd1 Ne5 fxe5 Be6 Bd3 Bf5 Bf1 Bc8 h4 b5 c4 g6 d4 e2 Kf2 e1B+ Kg2 g3 c5 b3 e6 b2 e7 b4 a3 b3 h5 e3 d5 e2 d6 Ba5 h6 e1B h7 Bg7 Bg5 Be6 Ra2 Be5 Nd2 b1B Qf3 b2 Qb7 Bb3 Ngf3 B1c2 Be2 b1Q Ne4 Qb8 Kg1 g2 Nd4 Qc8 Bf6 Qb2 Nb5 Qf5 Ng3 Rd8 Rh4 Rd7 Ra4 Rd8 Kh2 g1B+ Kh1 Bh2 Bg5 Qd4 Bd2 Qdf2 Bc3 Kd7 e8R Ne7 Rg8 Ke6 d7 Kf6 Re8 Kg7 Rf8 Rc8 d8B Nc6 Bg5 Rd8 Re8 Rd3 Rc8 Bb6 Raa8 Ba5 Bcd2 Rhd8 Bc3 R8d4 Bgd2 Rf4 Be3 Kh6 h8Q+ Kg5 Qf6+ Kh6 Bc1 Kh7 B1d2 Rc4 Bg5 Bf4 Qe5 Rd7 Qd4 Be5 Qd1 Rd5 Qa1 Rd3
2Qb2qQ/2BbrbR1/bn1B4/R1b1RN2/1p2K1p1/r5PQ/1Pb1qp2/6kN w - - 1 2 illegal: No possible last move
3n1nR1/4pn1B/PR1qqpn1/1b2Qn1k/2Qn4/pNB1KP2/3N2r1/1RbN4 w - - 0 1 illegal: No possible last move, all moves rejected
1rnK1rN1/bp1R4/1r2k2p/1QR3QP/rP2p3/qn3Rn1/1nN5/B1BB3n w - - 1 2 legal: proof: e4 f5 b4 d5 b5 dxe4 b6 axb6 Bb2 b5 Bc1 b4 g4 fxg4 Bb2 b3 Bc1 b2 Nf3 Be6 Ng1 Bb3 cxb3 Ra3 Qe2 Ra4 Qd1 Ra8 Ke2 Kf7 Ke3 c5 Kf4 e5+ Kf5 g5 h4 g3 f4 g4 a4 e3 d4 c4 b4 e4 a5 c3 h5 c2 d5 e2 a6 e1N a7 g2 d6 g3 d7 h6 Nf3 g1R Qd3 g2 Rh3 Ke7 Nd4 Qa5+ Qb5 Na6 d8R Qa3 Rf3 Nc5 Nc3 b1R Be2 Rb8 a8Q Nb3 Qaa5 Nd3 Bd1 Nf2 Nd5+ Kf7 Rc8 Nh1 Nf6 Bc5 Ra2 Ba7 Rc5 Rf8 Ke5 Ra1 Kd6 Rb8 Kc7 Ne7 f5 Rhf8 Ng8 Nc8 f6 Rf1 Rb2 g1N Rb1 Ne2 Kd7 Re8 Kc7 Re6 Kd8 Rb6 Rb2 Kf8 f7 Neg3 Ra2 Nd2 Rb2 Nc4 Rbb3 Nb2 Rbd3 Qc3 Rd2 Ra4 Rdd3 Qa3 Rd2 Kg7 f8B+ Kh8 Be7 Kg7 Bf6+ Kf7 Nc6 Nc4 Rd7+ Ke6 Ba1 Nb2 Ne5 Qb3 Nc4 Qa3 Ne3 Rf2 Bd2 c1N Nc2 Nb3 Bc1 Rc6 Qc7 Rca6 Qf4 Rb6 Qg5 Rf1 Rfc3 Rf7 Rf3 Rf8+
4br1k/2p2r2/2BbPpQn/1r4br/Qr1R3p/1rP2N2/NB6/R2nNK1Q w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 Ne2 a5 Ng1 axb4 f4 gxh4 Be2 e5 Ba6 e3 Bf1 e4 Rh3 Qg5 Rh1 Qe5 fxe5 Bf5 Na3 Bg4 Nb1 Bc8 a4 b5 d4 h5 g4 e2 a5 f6 g5 Kf7 e6+ Kg7 c3 b3 g6 h3 a6 h2 d5 b2 d6 b4 d7 b3 d8Q Bd6 a7 Nd7 Ra3 Nh6 Ra1 Nb6 Bh3 Nd5 Na3 b1R Qe8 b2 Bd2 Rf8 Nc2 Bd7 Bg4 Kh8 Nf3 Ne3 Bc1 h4 Qd4 Nd1 Qa4 Rc8 Rf1 h1R a8Q Bb5 Qf7 Be8 Bh3 Rg1 Bg2 Rb8 Bh1 Rb5 g7+ Kh7 g8N+ Kh8 Qc6 Rg7 Qg6 Rgf7 Ne7 Rb4 Nd5 Rb5 Kd2 e1B+ Ke2 e3 Ndb4 Bd2 Na2 Rb4 Re1 Rb5 Kf1 e2+ Kg2 Bg5 Qce4 Nf2 Rd1 e1R Rd4 Nd1 Qb7 Ree5 Kf1 Bf4 Nce1 Rh5 Ne5 Rb3 Bc6 Bg5 N5f3 Rb4 Bd2 Rc1 Bf4 b1R Qba8 Rc2 Bc1 R1b3 Bb2 Rg2 Q8a5 Rg3 Qe5 Rg4 Qh2 Rb5 Qh1 Rf4 Rd2 Rc4 Rd4 Rcb4
2Nqn3/1pR1Bn1k/4rp2/Rp3q2/2Q1QR1P/nP1Br1b1/n2N1NK1/2r4r w - - 0 1 illegal: No proof kernel
1r4rR/bbP3rq/2B2b2/3Bqpb1/1B1R4/nKQ1pQN1/pN1r1P2/k6N w - - 0 1 illegal: No proof kernel
k1Bn4/r1P1ppp1/2r2QN1/b1B1B3/P1b1nR1b/q2Q2n1/N2p4/K2rQ1R1 w - - 0 1 illegal: No possible last move, all moves rejected
1K2rb1Q/1N3nq1/1q1bRBB1/2Q2n2/Rrp1pkNP/4np1R/2p1P3/3r3N w - - 0 1 illegal: No possible last move
b4n2/2b1N3/B3kbN1/6RP/1NPr4/Q3pnp1/2rp1Qpq/R1BKqB1q w - - 0 1 illegal: No possible last move
B1r1b2q/2q1Bn1n/RQN1Kn1b/2N2PB1/3p1Q2/Rpp2P1k/p2R4/1r5r w - - 0 1 illegal: No proof kernel
2QNRB2/4Rnq1/1Nq5/2pKp1Pr/Qp1b2r1/1Q2B2p/1n2b1NP/2n2k1b w - - 0 1 legal: proof: e4 a5 c4 f5 f4 d5 cxd5 g6 b4 axb4 Be2 Ra7 Bg4 fxe4 f5 Ra5 f6 Ra8 Bf5 gxf5 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 Ke5 a4 Kf4 d4+ e3 g4 b5+ Kb3 h5 d6 h4 d5 h3 g5 Qc7 a5 Nc6 f7 Bg7 f8Q Rh5 a6 Nd4+ Ka2 b3+ Ka3 b2 a7 Ne2 Kb3 Qc6 d7 Bb7 d8B Nh6 d6 Bd4 d7 e5 Be7 Nf7 d8N b4 Nc3 b1Q+ Kc4 Rb8 Bb2 Nc1 a8Q e2 Ra7 Ke3 Nf3 Kf2 Na4 e1N Qb3 f4 Nb6 Qh7 Nh4 f3 Ng2 Ned3 Rd1 Qg7 Qg8 Rh4 Bf8 Rg4 Bc3 Ke2 Bd2 f2 Be3 f1B Qa4 Rc8 Qb8 Ba8 Re7 Rc7 Qc8 Rd7 Nb7 Rd6 Nd8 Rh6 Qh7 Rh5 Qhf5 Ne1 Qb1 Ned3 Qbb3 Bb7 Bf4 Kf2 Rd2+ Be2 Be3+ Kf1 Re8 Qcg6 Ra2 Ba6+ Kd5 Bb7+ Qac6 Nb2 Ra7 Ba8 Rae7 Qd3 Ke6 Qa6 Qca4 Qb5 Nf4 Bh1 Ng2 Qa6 Kd5 Qb7+ Ke6 Qc7 Kd5 Qc6+
Q2b4/1q3N2/nr2P3/QpR3Nr/q1b3p1/2qPR2N/BB1bp2p/B2k2Kn w - - 0 1 illegal: No possible last move, all moves rejected
1qkqR2N/b1r1rNnp/6NB/2Ppn2R/5B1Q/1np2b1q/2P2Qp1/4KQ2 w - - 0 1 illegal: No proof kernel
1K3n2/2b1bRPp/4QNpk/1nQN4/B2r1qq1/pPp1B1R1/2br4/2B1N1q1 w - - 0 1 illegal: No possible last move, all moves rejected
6qK/Br1k1NpQ/4n2p/1b1P2nR/QB4Rp/4bqRN/2p1q1P1/1r4rB w - - 0 1 illegal: Other
1b2Rrk1/N2BQ1pr/2p1nq1p/1PB5/n4r2/1NPN1QKp/7R/Q1b1q2q w - - 0 1 illegal: No proof kernel
1n2qN2/1b1R2pP/1R3qB1/b1r1pN2/Bn1RK1kr/BQQ3Pp/1q5p/b7 w - - 0 1 illegal: No proof kernel
4B2r/q3PQ1Q/r3RP2/NRp3q1/1n4Np/1R1KBp2/b1p2bn1/nQ2q2k w - - 0 1 illegal: No proof kernel
B1Q5/Qn1rp1nk/6Nq/1Q2b1B1/1p1qRp2/r1q1PN2/K1P1pb1R/3b1B2 w - - 0 1 illegal: No proof kernel
qqn3r1/4pnR1/1N2bpB1/3R3Q/1p1RPPpQ/1K2rNb1/2q3Q1/1Bk2n2 w - - 0 1 illegal: No possible last move
R7/BrK1p3/1BBP1p1q/bb3n2/1N1nQ2Q/1qkpr3/1N1p1bPR/5r1Q w - - 0 1 illegal: No proof kernel
1QN2nb1/b2Qp1pP/2n3p1/KB1P4/1Qr3p1/1BqRr2k/1rNB1R1q/4q3 w - - 0 1 illegal: No proof kernel forced: wxDB
BN1r2b1/3p4/4R1pq/k1qp2r1/1RPbn2N/1PBp3Q/6r1/Kq1QnR1B w - - 0 1 illegal: No proof kernel
1r3RBb/kr1p2Q1/p3NP1q/R1p1B1r1/1n6/K5Nn/N3p1P1/1bqB2Qq w - - 0 1 illegal: No proof kernel
1BKN3R/1N1pP1rP/p1q2nqB/p3bQRp/1k4B1/4nbQ1/7b/N1r1n3 w - - 0 1 illegal: No proof kernel
1N1q3b/krp1nBNb/PbRp3Q/1r1R1qP1/4BB2/8/1N1pKp2/Q2nn3 w - - 0 1 illegal: No proof kernel
5Q1Q/Bkp1P1q1/nppbr3/R2KB1n1/2B1Rb1N/2p2qRn/2N3P1/2r4b w - - 0 1 illegal: No possible last move, all moves rejected
r1Nr4/Pr1n4/b2QB1p1/2Np2bp/K2nRpNQ/B4RQ1/k5qP/3q1b2 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 gxf5 c6 Kd2 cxd5 Ke1 d4 Kd2 Ke7 e4 Kd6 a4 Kc5 c4 h5 Kc2 d5 Kb3 b5 a5 d3 f6 g6 a6 d2 f7 Bb7 a7 Bc6 e5 Na6 e6 Bb7 e7 Qb6 e8Q Nc7 Qee1 Bh6 Ra3 Bg5 Qg3 Nf6 Bh3 Rhd8 Nc3 Ba6 Qdg4 Ne6 Q4h4 Nd7 f8Q+ Kd4 c5 d1Q+ Kb2 Kc4 c6 b3 c7 b4 c8N Qc6 Ne4 Nd4 Nc5 Qe6 Ra4 Qe4 Qd6 Qef3 Be6 Qg2+ Ka1 b2+ Ka2 b1R+ Bb2 Qge2 Nh3 Qe4 Ra3 Qg2 Rf3 b3+ Ka3 Rb8 Rg1 Ra8 Bc1 b2 Rh1 Rh8 Nf2 Rd8 Ncd3 Kc3 Re1 Kc2 Ka4 Kc3+ Ka5 Kb3 Nc5+ Ka2 Re2 Ra1 Re1 b1B Ng4 Bbd3 Ba3 Rb1 Re4 Rb3 Ka4 Bf1 Rc3 Rb7+ Rb3 Nc2 Rf3 Nd4+
4b1bk/pn2R1q1/N2r1q2/3P2Q1/1r1p3n/1rpP1B1K/2n2BQp/2Q1RNB1 w - - 0 1 illegal: No extended proof kernel
1q1B1Q1n/pR2N1Q1/4P3/1q2p2n/1RqrB1pb/4bK2/b1pP3k/B1rR3N w - - 0 1 illegal: No possible last move, all moves rejected
2b1Q1B1/p2r1KP1/5N2/2R2b1R/1pq3NB/kP1p2p1/2rqqnnN/1Qb1Q3 w - - 0 1 illegal: No proof kernel
1Nb4R/p3B1PQ/1p1RB1N1/qp1B4/q2N1r2/b2kp1P1/Q2nn2K/2brr3 w - - 0 1 illegal: No proof kernel
1q2Q2R/pRP3rp/1K6/2RrBk1q/1N1p3b/1NB5/b1p1P1n1/Q1bBn1n1 w - - 0 1 illegal: Other
2n3nr/ppqb4/pp1R1Q1R/P4B1R/N3P2b/r1B1K3/b1k1qQQ1/3q1N2 w - - 0 1 illegal: Other
KB2b3/N1r5/1R1pk1n1/P3pb2/NQqbbp1R/1r1B4/bpBR1QP1/7n w - - 0 1 illegal: No proof kernel
rbB3K1/b1npR3/NRp1p2p/Pr6/4bq1P/Q1B3B1/b3n2N/1kbQ2Q1 w - - 0 1 illegal: No proof kernel
4B3/2bp2p1/2kqRnN1/Rr2Q3/2NPp1BQ/3N1bK1/2prbP2/3bnB1b w - - 0 1 illegal: No proof kernel
3Qn2k/6N1/Nn1b1qp1/1K3Rb1/B1pP1p1r/n1Q2P2/r1Np2nB/3Rb2R w - - 0 1 legal: proof: d4 e5 a4 exd4 g4 h5 a5 hxg4 Bg2 d3 Kf1 d2 Bh3 b6 Kg2 bxa5 Kg3 a4 Bf1 Ba6 Kg2 Bc8 e3 d5 Ba6 d4 Kf1 Bf5 Ke2 Bg6 Bb7 Bf5 Bg2 Bg6 Bf1 Bh7 Qe1 d1N Qb4 Bf5 Qb3 d3+ Ke1 d2+ Ke2 Bd3+ cxd3 Rh7 Qb6 Rh6 Qb3 Rh8 h4 c5 e4 f5 e5 a5 h5 a3 e6 g6 h6 a2 e7 a4 h7 g3 f3 a3 Nh3 g2 Qc3 Kf7 e8R g1B b4 Qf6 b5 Kg7 b6 Ne3 b7 Bd6 Re5 Nd7 b8N Bf2 Nf4 Nb6 Bb2 Ng2 Na6 Be1 Rd5 Qd4 Re5 Nf6 Rd5 Ne8 Ne6+ Kf6 Ng7 f4 Re5 Kf7 Rg5 Qf6 Rf5 Rf8 h8Q Ra7 Qh5 Rh8 Qg5 Kg8 Qh4 Qd4 Qd8 Rh4 Qc1 Qf6 Bd4 Kh7 Bg1 Kh8 Bh2 Ra8 Nc3 Ra7 Nd5 Ra8 Rb1 a1N Ne3 a2 Qc3 Nc2 Rd1 Na3 Nc2 a1B d4 Bb2 Kd3 Nb1 Nb8 Ra2 Na6 Ba3 Be2 Na4 Kc4 Nb6+ Kb5 c4 Bd3 Be7 Be4 Bad6 Bb7 Qf7 Bc6 Bg5 Bd7 Qf6 Bc6 Bb8 Kb4 Be5 Ba4 Bd6+ Kb5 Na3+
nN2n1R1/2B1R1rb/r4pk1/2P5/RnBp1Q2/2q1NP2/1pbpn3/1bNQK3 w - - 0 1 illegal: No possible last move
3bnB2/8/qp3rnB/p1RR4/1N1rRp2/1Q4P1/QrbNpPn1/2Krk2N w - - 0 1 illegal: No possible last move
n2BN3/1b2bn2/P2pR2B/np2NqRQ/1k1P2K1/2rR3B/3ppb2/2rQ3b w - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 hxg4 Bd3 c5 Bf1 f5 exf5 c4 Qd3 cxd3 f4 g5 Kf2 b5 Kg3 e5 c4 Ke7 a4 Kd6 h4 b3 c5+ Kd5 c6 Kc4 a5 b2 c7 e4 f6 d6 a6 e3 f5 e2 f7 Nh6 h5 Be7 f8R Nc6 f6 Nf7 h6 Bb7 c8Q Kb4 h7 Na5 Bh3 Qd7 Re8 Qf5 Nd2 b1B Qc2 Rc8 Ra3 Rc3 Ne4 Rf8 Bf4 d2+ Nf3 Ba2 h8Q Bad5 Qh5 Bdc6 Ra8 Rc8 Qd1 Bd5 Rg1 R8c4 Kg2 g3 Ne5 g4 Bh6 Rc1 Rd3 R4c3 Re8 Bdc6 Kh1 g2+ Kh2 Bd5 Kg3 Bdc6 Rf1 g1N Bg5 Nf3 Rg1 Bd5 Bh6 N3g5 Kh4 Nh8 f7 g3 f8B g2 Nf6 Ne6 Bg5 Nf7 Bfh6 Nc7 Kg3 Bf8 Re6 Na8 Ne8 Bf3 Bd8 Be7 Rf1 g1B Rf2 Qh7 Rg2 Bf2+ Kf4 Bfe4 Rg5 Bh1 Kg4 Qf5+
1r1b2QR/1r3Pn1/1rQ1N1pB/1Ppn1Np1/3BBR1N/1bq1n1Kn/5p2/k7 w - - 0 1 illegal: No proof kernel
bk6/r1b1p2b/Bpn1P2P/pb1QN3/1q3n2/rp3R2/Q2B4/KQ2NrRR w - - 0 1 illegal: No proof kernel
r4Kn1/3pR1nN/bkPP2b1/2p1Q1Bn/1bR5/p2p2qB/Q1Nr1Nn1/1R6 w - - 0 1 illegal: No proof kernel
3R1KN1/3p1bnp/p4nR1/r1R1B3/BnpQ2bk/1B2P2n/2Qr2qP/1N2b3 w - - 0 1 legal: proof: d4 b5 a4 e6 axb5 e5 f4 exd4 c3 dxc3 Qa4 g5 Qd1 gxf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 b4 f5 g4 c2 b6 Bb7 b5 Na6 e3 f3 Qd4 f2 Bb2 c1N Nh3+ Kh4 g5+ f4 g6 Bd5 b7 Bf7 b8R Nf6 g7 Rg8 b6 Ne2 b7 Nb4 Ra6 Ng1 Ng5 Nh3 Ne4 f3 Bb5 f1B Ba4 Be2 Rc1 f2 Rc3 Qb6 Rd8 f1N b8Q Ng3 Qc7 Qb7 Re6 Nf5 Qc6 Nh5 Rg6 Bg4 Nf6 Be7 Qc8 Qg2 Rc1 Rf8 g8B Nfg7 Bc3 a6 Qc6 Rc8 Qce4 Rb8 Qc2 Rb5 Ba1 Ra5 Bc3 Be8 Bgb3 Bf7 Ng8 Bg5 Kd6 Nf6 Ke7 c4 Rf1 Bf4 Ba1 Be5 Rf5 Bg3 Rc5 Bf2 Qde4 Be1 Be5 Qf1 Qd4 Qg2 Rb8 Rc8 Ra8 Rc6 Kf8 Rd6 Rd8 Rd5 Qde4 Rd1 Qd4 Rd2
q1bNB3/2p1b1N1/1R3n2/2P3R1/Q1br1k1p/N2prB2/Q1Q2p1P/1K1rn2b w - - 0 1 legal: proof: d4 a5 b4 e5 a4 exd4 f4 g5 b5 gxf4 Ba3 b6 Bb4 axb4 a5 Bc5 axb6 Bf8 Kd2 Ke7 Kc1 Kf6 e4 Kg5 c4 d5 g4 f5 e5 h5 e6 f3 c5 b3 e7 d3 e8B f4 b7 h4 b6 f2 Qc2 d4 Be2 f1B Bf3 Nf6 Ne2 Rg8 Ra6 Be7 Ng3 Nc6 b8Q Ne5 Na3 b2+ Kb1 d2 b7 Nd3 Nf5 Ne1 Qa7 Bc4 b8N d1B Rb6 d3 Qaa4 Rh8 Be2 f3 Rg1 f2 Nc6 Kf4 g5 Ra5 B2h5 Bf3 g6 Bh1 g7 Rb5 g8Q Rb4 Bf3 Rh5 Nfd4 Re5 Rg5 Re3 Nf5 Qd5 Nd8 Qa8 Qab3 Ra4 Ng7 Rb4 Ka2 b1R Qe6 B4a6 Qa4 Rd4 Qf7 Rc1 Kb2 Rd1 Qa2 Rd2 Kc1 Bc4 Kb1 Rd1+
N3K3/BRp1NnBk/1r1Rp3/qB1Pn2b/2Q1pn2/4b2r/r1Qp1P2/1N4n1 w - - 0 1 illegal: No proof kernel
Q6b/1Pr1R3/1Qppr3/qRr1N3/rNp2Bb1/p1KQ4/P2BBn2/1b1n2k1 w - - 0 1 legal: proof: e4 b5 d4 f5 c4 bxc4 h3 g5 h4 e5 dxe5 fxe4 Qe2 gxh4 Qg4 Ke7 Qd1 Ke8 Kd2 Ke7 f4 Ke6 b4 Kd5 g4 Kd4 b5 h5 b6 a5 g5 d6 e6 h3 e7 c6 e8Q h4 g6 a4 g7 h2 b7 a3 f5 h3 f6 Na6 f7 Nc7 Qe2 e3+ Kc2 Ra4 Qh5 e2 Bg5 e1R Bh6 Nf6 g8Q Ne4 Nc3 Bg4 Bg5 Bg7 f8B Nb5 Rb1 Nf2 Bf4 Qa5 Qhg6 Rh7 Qa8 Bh8 Be2 Rc7 Nd5 Nc3 Rb5 Ncd1 Qd8 Nc3 Nb4 Ncd1 Be5+ Ke3 Nf3 Nb2 Rf1 h1B Kc3 h2 Qb1 Bg2 Qd1 h1R Bh6+ Ke4 Be3 Rh5 Bd2 B2h3 Qgf8 Bf5 Qa8 Bhg4 Qfd8 Bg6 Rh1 Rg5 Rh7 Rf5 Bf6 Rc5 Ne5 B6f5 Bf4 Bg6 Re7 Bh7 Bg3 Ke3 Qb3 Bb1 Bh2 Nh1 Bf4+ Kf2 B6g5 Kg1 Qc2 Nf2 Qd3 Rc8 Qb6 Rc7 Bf1 Re3 Be2 Nbd1+ Kd4 Rf3 Bd2 Rf6 Bgf4 Ne3 Kc3 Rg6 Qf8 Re6 Qa8 Ned1+
1Q2bnrk/1p2b3/4pr1r/1PN3pr/nK1pBB2/1b1B4/1QN1PqQR/R7 w - - 0 1 legal: proof: g4 g5 b4 c5 d4 cxd4 b5 a5 Qd2 h6 Qb4 axb4 f4 Ra6 fxg5 Ra4 g6 Ra8 g5 hxg5 Kd2 d5 a4 f5 h4 b3 c4 b2 c5 d3 Kc3 f4 c6 e6 c7 d2 h5 d1R g7 Kf7 a5 f3 a6 f2 h6 Qd7 h7 Ne7 g8B+ Kg7 a7 Ng6 Rh2 Be7 Nd2 b1B Bg2 f1R Nb3 Ba2 Bf4 Nf8 Nf3 Na6 Ne1 Nc5 Kb4 Na4+ Nc5 Bb3 Be4 d4 Nc2 Rb8 a8Q Qd5 Qa5 Bd7 c8Q Qf5 Qc6 Be8 Bf7 Rg8 Bg6 Kh8 Bd3 Rf2 Qg2 Rh1 Qa6 Qf6 Bge4 Rf3 Qd6 Rh3 Qd5 Rh6 Qc4 Rc8 Qc3 Rd8 Qb2 Rd5 Bg3 Qf2 Bf4 Rf5 Bc7 Rff6 Bf4 Kg7 h8Q+ Kf7 Qh7+ Rg7 Qf5 Kg8 Rh4 Rh3 Qe5 Kh8 Qb8 Rg8 Rh5 Rg3 Rhh1 Rgh3 Rh2 R3h5
1n3nr1/np2P1p1/3pB3/3N4/QBn1Qr2/1bR2P1K/1Rp1qr2/QRNk2b1 w - - 0 1 illegal: No proof kernel
1B4N1/p2K1p2/2P3Q1/2QQn1np/BrpN1nr1/4kqP1/B4R2/1nbb1R1r w - - 0 1 illegal: No proof kernel
2k1N3/3n2QQ/r2nq2p/qpNPR1bB/2r5/1P1R1B1p/4b1p1/BKn1R1n1 w - - 0 1 illegal: No proof kernel
K1b2QBR/BN6/1q1Q2p1/3b1bPp/1q2kpn1/Pb3n2/pr4Q1/1N2r1NR w - - 0 1 illegal: No proof kernel
b3KQ2/3qnBR1/Rb1p4/1q1p1p1N/2p1rnPk/3NQ2B/1r5P/Bb4bR w - - 0 1 illegal: No possible last move, all moves rejected
nNr5/4B1k1/1b1p2nq/1Rp1R3/P1bp4/1r1qBNb1/2P2pbK/2B1QRQ1 w - - 0 1 illegal: No proof kernel
3kbqB1/BQ4q1/p2N4/rpR1n3/2Pn1Rpr/1r1bR3/1PN2KpB/1r5Q w - - 0 1 legal: proof: f4 h5 d4 e5 d5 exf4 d6 cxd6 Nh3 d5 Ng1 d4 g4 hxg4 a4 b5 a5 Ba3 Nc3 Bc5 Nb1 Bb6 axb6 Rh6 Nd2 Rh7 Nb1 Rh8 h4 d5 e4 g5 c4 f5 b7 f3 e5 d3 e6 d2+ Kf2 f4 h5 d4 e7 d3 h6 Nc6 b8B Qd7 h7 Ne5 Ra5 Nh6 Qa4 d1R Qc2 d2 Bg2 Nf5 Qe4 Nd4 Rh5 Qc7 Ra6 Bd7 Nh3 Re1 Rg6 d1R Bh1 Re3 Na3 Rb3 Be3 Rb1 Rf6 Bc6 Bg2 Kd7 e8R Qb7 Ree6 Kd8 Rf8+ Be8 Nc2 Qg7 Rff6 Rg8 h8Q Rf8 Qh6 Rh8 Qb7 Rh7 Qg6 Rh6 Qd3 Rh7 Qd1 g3+ Kg1 g4 Ng5 Rh8 Ne4 f2+ Kf1 Rh6 Nd6 Rh7 Bc6 Rh6 Kg2 f1B+ Kg1 g2 Kf2 f3 Bd5 Rh7 Rf4 Bd3 Qh1 Rh6 Rg5 Rh4 Re7 Bh7 Bg8 Bd3 Kg3 f2 Rgf5 Ng6 Rc5 f1Q Bg1 Ne5 Bh2 Nf7 Re3 Ne5 Rfe4 Qff8 Rf4 Ra3 Kf2 Ra5 Qc6 a6 Qd5 Ra7 Qf7 Re7 Ba7 Re6 Qb7 Reh6 Qe1 Rh3 Qd1 R6h4 Qh1 Bh7 Re4 Rb3 Re3 Bd3
1qnR1B2/3b2rp/1rP1BB2/1Q2nb2/2Qp1N2/1K1PN3/3p2p1/1kqqRNq1 w - - 0 1 illegal: No proof kernel
3Q4/2b1Bb1p/p3R1Q1/P4qrr/2n1R1QP/1p2BN2/p1k1nKNb/4R1qb w - - 0 1 illegal: No possible last move
3QR2R/Bk1nP1rn/1qN1B1n1/1p1r1bn1/B2b4/p1N4p/2K1PpQ1/q4Q2 w - - 0 1 illegal: No proof kernel
1Bq1bk2/R2Ppnp1/1b3RP1/r1p3B1/3Qrb2/NRnp4/3bNQq1/1NK5 w - - 0 1 illegal: No possible last move, all moves rejected
rB2rR2/2rp1B1k/bp3rpn/1N1B2Q1/2qRKRP1/6Pn/1q1b1Np1/1Q6 w - - 0 1 illegal: No proof kernel
1Q3b2/1bp1Rp1Q/NqR1bPp1/2R3Bb/3r3n/r4qpP/Kn3kNN/1B6 w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 h5 a4 hxg4 a5 b5 cxb5 Na6 Kd2 Nb4 a6 Nc2 Ra4 Bxa6 Ra1 Bc8 b4 Ke7 f4 Kd6 e4 a5 h3 d3 Kc3 a4 Kb2 g3 e5+ Kd5 b6 Ke4 b5 d5 e6 d4 e7 g6 e8R+ Be6 b7 d2 b8Q Ke3 b6 d3 f5 Nh6 Qa7 Rb8 b7+ Qd4+ Nc3 a3+ Kb1 Nb4 f6 Nf5 Nce2 Rh4 Nf3 Kf2 Nh2 Qc5 Bg2 Rd4 Be4 Nh4 Re7 a2+ Kb2 Qb5 Nf4 Qf5 Qg4 d1B Qh5 d2 Qh7 Bf3 Ng2 d1B Bg5 Nd3+ Ka3 Bh5 Rc1 Bdf3 Rc3 Qf4 Rhc1 Qg4 Rc4 a1Q+ Kb3 Qc3+ Ka2 Nb2 Bb1 Qb4 Qb6 Be4 Qa7 Qf3 Qa8 Rc8 b8N Qb7 Na6 Rb8 Qa7 Qc6 Qa8 Rb3 Qb8 Qb6 R4c3 Ba8 Rc6 Bb7 R1c5 Ra3#
qQ3r2/2p1pN2/p1B1k1q1/PP2p1bq/Q2RQ2b/1K1rNnq1/1RN1nB2/8 w - - 0 1 legal: proof: e4 f5 c4 b5 g4 bxc4 e5 d6 Qb3 dxe5 Qa4+ Bd7 Qd1 Bc8 h3 fxg4 Ke2 g3 Ke1 g2 Nf3 g5 Ng1 g4 Nf3 g3 Ng1 Bg4 hxg4 Bh6 Nc3 Bg7 Nb1 Bf8 b4 Kf7 d4 h5 Kd2 c3+ Kc2 a6 f4 h4 a4 h3 b5 h2 f5 Qc8 a5 Qe8 g5 Rh4 g6+ Kf6 d5 Rh7 g7 Qh5 d6 Ra7 d7 Rh8 d8N Ra8 Ra4 Nh6 g8Q Bg7 Qh7 Nc6 Be3 Ng4 Rd4 Rf8 Ne2 g1Q Na3 g2 Nf7 Rad8 Kb3 c2 Ng3 c1B Bf2 Bg5 Nc2 B7h6 Be2 Bh4 Bf3 B6g5 Nf1 Rd6 Nfe3 Qe1 Qd3 g1Q Qe4 Qg2 Rg1 h1Q Qf4 Qg3 Rg2 Nh2 Bd5 Nf3 Rh2 Nd8 Bc6 Ne6 Qe4 Qg6 Qh5 Nf4 Qg4 Ne2 Qgf4 Kg7 f6+ Kg8 Nh8 Qd1 f7+ Kg7 Qg4 Kf6 Rg2 Rg8 Qgf4+ Ke6 f8Q Rd5 Qb8 Rf8 Rh2 Qhg2 Nf7 Qdh1 Rd2 Qd1 Qa4 Qdh1 Qfe4 Q2h3 Rd3 Qhg4 Rd4 Q4h5 Rc4 Rd2 Rd4 Rd3+ Ka2 Qhg2 Rh1 Nc3+ Kb3 Bf4 Ba8 Bh6 Qf4 Nh2 Rb1 B6g5 Rb2 Qb7 Qe4 Nf3 Rd7 Qa7 Bc6 Qa8 Rd4 Ne2+
7K/1p1P1np1/PRQ5/N2r2qQ/4r1pB/NN1Bpq1k/2n2b1b/2bB2Rb w - - 0 1 illegal: No proof kernel
1brn4/P2Rp2k/pn1pN2q/q1NN1n2/PKp1RB2/Q4Q2/B6n/b1Br4 w - - 0 1 illegal: No possible last move
B1q1N3/Rp1q1nRr/nPk1B3/b1r5/1ppK1p1B/2P2rQ1/4NN2/q2n1Q2 w - - 0 2 legal: proof: e4 g5 b4 d5 f4 gxf4 g4 dxe4 Qe2 a6 Qb5+ Nc6 g5 Bg4 h3 a5 hxg4 Ra6 Qc5 Nb8 b5 Ra8 Qb4 axb4 Ke2 Kd7 a4 c5 d4 h5 a5 f5 a6 e5 c3 c4 d5 f3+ Ke3 f2 a7 h4 d6 h3 g6 h2 g5 Rh7 g7 Qc8 g6 Na6 Bh3 f1R Ne2 Nh6 g8N Be7 g7 Nf7 Rg1 h1N Nd2 Bd8 Rg2 Rb8 a8B Ba5 Rg1 Nf2 Nf6+ Kd8 d7 Kc7 g8Q Kd6 d8Q+ Qd7 Qde8 Rc8 Nf3 Rc5 Ne1 Kc7 Nd3 Nd1+ Kd2 Kb6 Qg3 Rf3 Qf8 Qc8 Ne8 e3+ Kc2 e4 Nf2 Qe6 Bd2 Qd7 Be1 Qc8 Qg2 Qd7 Qf1 Qc8 Rg7 Qd7 Qg8 Qc8 Nf4 e2 Kd2 Qd7+ N2d3 Qc8 Bh4 Qd7 Ra3 Qc8 Nf2 e1Q+ Kc2 Qe3 Ne2 Qd4 Ra4 Qdd7 Ra1 Qdc6 Kd2 e3+ Kc2 Q6e6 Rg1 Nc7 Nd4 Qed7 Qgg2 e2 Kd2 Nb2 Ra3 Qe6 Qh2 Qed7 Rg7 e1Q+ Kc2 Re3 Qg3 Qa1 Kd2 Rf3 Ra2 Nd1 Ra3 Re5 Ra4 Kc5 Bg4 Bb6 Ra7 Kd5 Ne2 Ba5 b6 Na6 Bh5 Nd6 Bf7+ Kc6 Be6 Rc5 Bg5 Nb2 Bh4 Nf7+ Nd6 Rf4 Ke3 Rf3+ Kd4 f4 Qgh3 Nd1 Qg3 Qe7 Ne8 Qed7+
B2Br3/1R3R2/kbb2Q1p/1q1pr3/NpB3Q1/Kbb1Nn1b/P3p2P/1R1r4 w - - 0 1 illegal: No possible last move, all moves rejected
b2BNnq1/PK1Bp3/4Nnb1/3pP1q1/2Qb1pp1/1Q3B1k/1Rb3N1/2r2R1b w - - 0 1 illegal: No possible last move
Qr2kB1B/6Kb/pP1pp2b/3bpb2/P2n1qqn/3RR2Q/1QN3B1/N6b w - - 0 1 illegal: No proof kernel
6nq/1Q2pk1p/2R1p3/1B6/pKB2r2/PNn1PNb1/3nQBq1/2NR1nrn w - - 0 2 legal: proof: g4 b5 c4 bxc4 Qb3 f5 Qe3 fxg4 Qe6 dxe6 h3 g5 Nf3 g3 Nh2 g4 Na3 g2 Nf3 g3 Nb1 Bb7 Ng1 Bc6 Na3 Bf3 Nb1 Bg4 hxg4 Qd3 Kd1 Qd4 Ke1 Qd8 f4 a5 d4 c5 Kd2 a4 Kc3 Qc7 b4 Qa7 b5 Bg7 a3 Nd7 f5 Nf8 f6 Rd8 d5 Nd7 g5 Qb6 d6 Qb8 g6 Rc8 b6 Ne5 b7 Nf3 Nd2 Nh2 Ngf3 g1Q Nb3 g2 Be3 Bh6 g7 Bf4 d7+ Kf7 d8Q Bg3 Qd4 Rf8 Rd1 Qf2 Qd3 g1N Nc1 Nh3 Qc2 Qg2 Bf2 Qd8 b8Q Qe8 Bd4 Nf2 Qb7 Qa8 Rg1 Nh1 Bf2 Qb8 e3 Qc8 Bd3 Nf1 Qe2 Qa8 Kc2 c3 Bc4 Qe8 Kd3 c2 Kc3 Qb8 Rd6 Qd8 Rc6 Qe8 Bd3 c4 Kb4 c3 Bc4 Nd2 Nd3 c1N Rd1 Ncb3 Nc1 c2 Kc3 Kg6 f7 Nf1 Kb4 Qc8 Qb5 Nbd2 Qb7 Re8 f8N+ Kf7 Nd7 Rf8 Nc5 Qa8 Na2 c1N Nb3 Qb8 Qe1 Ne2 Nac1 Nc3 Qe2 Ke8 Na5 Rf4 Nab3 Nh6 g8B Kf8 Bf7 Rg8 Qe1 Rg6 Qe2 Ng8 Be8 Qa8 Bd7 Kf7 Ra6 Qf8 Bb5 Qg7 Rb6 Qh8 Rc6 Qh3 Nc5 Bh4 Qe1 Rg1 Qe2 Qg2 N5b3 Bg3
5q2/2b4p/5qQp/pR2pR1P/P1B1QBR1/1qn1b2r/N1bkNq2/K1n3Q1 w - - 0 2 legal: proof: e4 a5 c4 d5 f4 e5 f5 b5 Qh5 bxc4 Qg5 Ra6 Qh6 Re6 fxe6 dxe4 Ke2 gxh6 Kf2 Qe7 Ke1 Qd8 Kd1 Ke7 Kc2 Kf6 g4 Kg5 b4 Kf4 Kb2 c5 d4+ e3 a4 f5 h4 c3+ Ka2 c2 b5 c4 h5 c3 d5 Nc6 e7 Nf6 e8R Nd4 b6 Bd6 g5 Rf8 g6 Ne2 g7 Ne4 g8Q Bc7 d6 Qf6 Bd2 c1Q d7 c2 d8Q Qd1 b7 c1B b8Q Ba6 Qa8 Bd3 Qa7 Bc2 Qdd5 Rf7 Rh3 Rg7 Qb6 Rg3 Rb8 Rf3 Rh2 Rh3 Nc3 Qf8 Qbg6 Qf6 Be1 Bd2 Rab1 Nc1+ Ka1 e2 Na2 Ke3 R1b4 f4 Bg3 e1Q Rf2 f3 R8b5 Nc3 Bc4 Qee2 Rf1 f2 Qg2 Qef3 Ne2 Q3f5 Q8a8 Qc8 Qg1 Qcf8 Nf4 Qf3 Ne2 Qd5 Bd3 Qb3 Bc4 Nd3 Bh2 Bc1 Qae4+ Kd2 Re1 f1Q Bg3 Q1f2 Rf1 Qg2 Rf5 Qf3 Qgd4 Qf2 Bf4+ Ke1 Qb6 Be3 Qg1+ Kd2 Qbc6 Q6g7 Qcg6 Nc1 Qa8 Nb1 Bd3 Qff6 Bg5 Qd5 Rg4 Qde6 Qe4 Qgf8 Bf4 Qb3 Bc4 Nc3
BN4rK/qRb3N1/1Np1r1pQ/2BP3Q/1p2k3/n2R1rp1/q2R1nPq/4r3 w - - 0 1 illegal: No possible last move, all moves rejected
1b1q4/2rBk1pK/1B1q4/1r1R4/q2Bp2p/r1QN1pNP/1qnQ1P2/RN1n4 w - - 1 2 legal: proof: e4 d5 c4 dxe4 b4 f5 g4 f4 b5 Bf5 b6 axb6 gxf5 b5 Qe2 bxc4 Qd1 c3 Ke2 b5 d4 e5 a4 h5 d5 c5 d6 e3 Kf3 e2 Ke4 e1Q+ Be2 h4 h3 c4 a5 c2 d7+ Ke7 a6 c3 a7 b4 Qd4 f3 Ba3 c1R Bb2 b3 Qd2 c2 Bc3 b2 Bd4 Qd1 Bb5 Na6 Ne2 Nb4 Ng3 Rh5 Qc3 Qd2 Rd1 Nh6 Bc6 Ng4 f6+ Kd6 f7 Ke7 Bb5 Qh6 Rd2 Ne3 Ba4 Nd1 Rd3 Rc8 a8Q Rc7 Qa5 Qd6 Qd2 Rc3 Qc7 Ra3 Qcc3 Rh7 Kf5 e4 Bb3 Rh6 Be6 Rh5+ Kg6 Rb5 Kh7 Ra8 Na3 b1Q Bg4 Qb3 Nb1 Qa4 Bf5 Q8b6 d8N Qbb8 Ne6 Qbd8 Nf4 Ra7 Bd7 Rc7 Na3 Rb1 Bb6 c1Q Rd5 Nc2 Nd3 R1b3 Nb1 Qb2 Bd4 Ra3 Bb6 Qe5 Bd4 Kf6 Bb6 Bd6 f8B Qed4 Be7+ Kf7 Bf6 Kf8 Be5 Ke7 Qe2 Qc5 Bd4 Bf4 Qee1 Qd6 Qed2 Rb7 Nc5 Qe6 Qe2 Bb8 Nd3 Qd6 Qed2 Rc7
2rQ3r/2R1NQPR/2N2q2/b1K3p1/p1qrpB2/4P1Np/B4b1k/nb2Q2b w - - 0 1 legal: proof: g4 b5 d4 g5 a4 bxa4 h4 c5 h5 cxd4 Bf4 Nc6 Be3 Ne5 Bc1 Ng6 hxg6 f5 Ra3 fxg4 Ra2 Bb7 Ra1 Bc8 Kd2 e5 Kd3 Ke7 Kc4 Kd6 f4 a5 b4 h5 f5 a3 b5 h4 b6 a4 g7 d3 c3 d2 f6 h3 f7 a2 b7 g3 b8N g2 Bb2 Nf6 Nf3 g1B Nh4 Ne4 Nc6 Qc7 Ng6 Bf2 Rg1 Bb7 Ne7 Rc8 Bc1 Nc5 Rg4 Nb3 Qe1 d1R Rh4 Rd4+ Kb5 Ke6 c4 d5 Nc3 Ba8 Rb1 a1Q c5 Qb2 Ne4 Na1+ Qb4 Qc3 Ng3 Qd6 Kb6 Qc4 Bf4 Bb7 e3 Kf6 Ng6 Be7 Rh7 Bd8+ Ka7 Ba8 Rc1 Ba5 f8Q+ Ke6 Nge7 Qd8 Ng6 Qf6 Qe1 Bb7 Bd3 Ba8 Bb1 Bb7 Ne4 Kf5 Qf7 Kg4 Ba2 Kf3 Rc3 Kg2 Ng3 Kh2 Rc1 Rd2 Nge7 d4 Rc2 d3 Rc1 Rd1 Rc3 d2 Rc2 Bc3 Kb6 Ba8 Rc1 Bb4 Rc2 Ba5+ Ka7 Rce8 Nb8 Bh1 c6 e4 c7 Qb5 c8Q Rd8 Rc7 Qc4 Qd7 Rc8 Qde8 Rc1 Kb7 d1B Qd8 Bc2 Nbc6 Rd1 Ka7 Rd4 Kb7 Qc3 Ka6 Bb1 Kb5 Qd3+ Kc5 Qc4+
Nk4bb/4q1RR/1pBrn2R/4Pq2/1p4N1/bQQrp1q1/p3P3/1b1K2BB w - - 0 1 illegal: No possible last move, all moves rejected
1NQB3Q/pQbn1rp1/PR2N2p/2b1nRB1/2qp4/k2Pq2b/7K/3Bb2n w - - 0 2 legal: proof: f4 e5 c4 exf4 g4 b5 Nh3 bxc4 Ng1 f3 h4 f5 h5 f4 h6 Na6 Qc2 Qh4+ Kd1 Qxh6 Ke1 Qh2 Qd1 Rb8 Nc3 Rb5 Nb1 Rf5 gxf5 Bb4 Nc3 Bd6 Nb1 Bf8 b4 Ke7 a4 Kd6 e4 c5 d3 h6 b5 c3 e5+ Kd5 f6 c2 b6 c4 a5 Kc5 b7 Kb4 b8B d5 e6 c3 f7 d4 e7 Nf6 e8Q Nc5 a6 Nfd7 Ne2 Qh3 Kf2 Ne5 Kg1 Ncd7 Nd2 Bc5 Bc7 Rf8 Ra5 Qe6 Bg2 f2+ Kh2 f1Q Nf3 Qe1 Bd8 Qc4 Bh3 Qd2 Bg4 Qe3 Qg1 Kb3 Qg2 Kb4 Bd2 c1B Re1 Bb2 Rb1 Kb3 Rb5+ Ka3 Rf1 c2 Rb6 c1B Bh5 Rh8 f8Q Bc3 Qf5 Rf8 Qh7 Nc6 Qh8 Rf7 Ne5 f3 Nf4 f2 Ne6 B3b4 Bd1 Ba5 Ng4 Nce5 Nf6 Bb2 Qb7 Bbc3 Ng8 B3b4 Ne7 Bc3 Nc6 B3b4 Rb5 Bc7 Rb6 Bc3 Nb8 Ba5 Rg1 Bc3 Rg5 f1N+ Kh1 Ba5 Rf5 Ng3+ Kh2 Nh1 Qeg8 Qf3 Be3 Be1 Beg5 Qe3 Qa8 Bb7 Qf8 Bg2 Qb7 Bh3 Qe8 Nf8 Qec6 Nfd7 Qc8 Qa4 Q6b7 Qc4
4r3/1BBBrnpp/4qQ1Q/q3nK1P/p1RRN3/Nk4rQ/1r1P1pbn/8 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g3 f5 Qc2 f3 Kd1 f2 Qb3 f4 Kc2 f3 Qa2 Bd6 Qb3 Bf4 gxf4 Qg5 Kc3 Qc5 Qd1 Qe7 Kc2 Qd8 e4 Kf7 b4 Ke6 h4 a5 h5 c5 b5 c3 e5 Kd5 Kd3 a3 b6 a4 f5 c2 b7 a2 e6 Ra5 e7 Rb5 e8B Rb2 f6 Nd7 b8Q Bb7 f7 Qa5 f8Q Nh6 Na3 Nf7 Bg2 f1N Rh4 Nh2 Qf4 c4+ Ke3 c3 Qh6 Nde5 Kf4 Kd4 Qf1 f2 Nh3 Bf3 Bh1 Bg2 Kf5+ Kd5 Rb1 a1Q Rc4 Qa2 Bd7 Qb3 Qd8 Re8 Qdf6 Qbb6 Ng5 Qe6+ Kf4 Ra2 Bb2 c1R Ne4 c2 Bd4 Rb2 Bb6 Re1 Bc7 Re3 Re1 c1R Re2 Rcc3 Re1 Bf3 Qh3 Bg2 Rc1 Rcb3 R1c2 Rg3 R2c3 Rbb8 Rb4 Re7 Rcc4 Qeb6 Kf5 Rbe8 Qhg5 Qc6 Qgh6 Qe6+ Kf4 Rc8 Rc3 Rb1 Nd6 Bf3 Rd3+ Kc5 Rdd4 Rce8 Bg2 Rb2 Bh1 Be2 Bb7 Bf1 Ke4 Bg2+ Kf4 Qc4 Kf5 Qb3 Rb6 Qc4 Rc6+ Kb4 Ne4 Kb3 Rc5 Qca6 Rcc4 Qe6+
B2Q4/B2npk1p/2n1N1Nq/4BqrP/4p3/1R2p3/PRK1nnqr/2QN2b1 w - - 0 1 illegal: No proof kernel
qk1rr2B/rp4nR/1n1q2p1/1p2KR1q/4BQP1/R1Pr1Q2/1p4Qb/1N4N1 w - - 0 1 illegal: No possible last move
Q1b1qb2/n1b1pk2/7P/7p/K1N2pr1/Q2Nr2r/Bq1BRPp1/N2R2bB w - - 0 1 illegal: No proof kernel
Q2N1NR1/2pr2R1/1qr1pk1B/2P4B/q2p1pb1/1N1r1RbQ/5Pn1/rK5b w - - 1 2 legal: proof: e4 e6 Ke2 b5 b4 g5 d4 a5 h4 axb4 e5 gxh4 d5 Ke7 Qd4 Ra3 Bf4 Nc6 Qd1 Re3+ Kd2 Rxe5 Kd3 Kd6 Bc1 Kc5 d6 Nce7 dxe7 Re2 Na3 Kb6 Nb1 Kc6 e8N Kd5 c4+ Ke5 g4 f5 a4 d5 a5 h5 a6 d4 c5 h3 g5 h2 a7 b3 a8R b4 g6 h4 g7 b2 R1a4 h3 Bh6 b3 Nf6 Bb7 Nh7 Re3+ Kd2 Ne7 g8Q Qd7 Qc2 Nd5 Qg3+ Nf4 Bb5 Bf3 Rb4 Bd6 Be2 Bg4 Rg8 Qa4 Nf8 Kf6 Qe4 Rh7 Nf3 Ng2 Ng5 Rd7 Rg1 h1B Qa8 h2 Qh3 Bg3 Nf7 f4 Nd8 Rc3 Rc4 Rf3 Kd1 Rd3+ Nd2 b1R+ Rc1 Rb2 Rc3 Ra2 Kc1 b2+ Kb1 Ra3 Rh8 Rb3 Rh7 Rb6 Rg7 Ra6 Nb3 Rc6 Kc2 b1R Rg8 Ra1 Bf3 Bf5 Bh5 Bg4 Rg7 Rdd1 Re3 Rd3 Rf3 Nh4 Qa5 Bf5 Qa8 Bg2 Be8 h1Q Rg8 Bh2 Re1 Qf1 Bh5 Bh1 Re5 Bg4 Reg5 Qg1 R5g7 Bg3 Kb2 Qe1 Na5 Qeb4+ Nb3 Ng2 Kc2 Qb6 Kb2 Ra2+ Kb1 Ra1+
4Rb1Q/1B2KpN1/4bp2/bnpp4/1B3qN1/Pk1NqP1Q/n1R2q1r/1b3B2 w - - 0 1 illegal: No possible last move
bR1N1q2/k3b1Q1/5n1p/pK1Rb2Q/1N2qpN1/r4q2/P1RPB1p1/r2bB3 w - - 0 1 illegal: No proof kernel
1b4N1/3qRpqN/nPBp4/2R5/pkb1Q1BB/2p1nPN1/1q5b/1KQ2q1r w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 d4 b5 a4 bxa4 b5 Ra6 d5 Rb6 d6 exd6 c5 d5 cxb6 d4 Qc2 c6 Qd1 c5 Kd2 Ke7 Kc2 Kd6 g4 h5 e4 d3+ Kb2 c4 b7 Kc5 b6 h3 e5 d2 e6 a3+ Kc2 h2 f3 a2 g5 a4 e7 h4 e8B h3 g6 Nh6 g7 Kb4 g8N Nf5 Ne7 Na6 Ng8 Qg5 b8Q Qg7 Ne2 Bd6 Qb7 Bb8 Nbc3 Ne3+ Kb2 d6 Qe4 Be6 Bc6 Rh4 Rg1 h1Q Rg5 h2 Bh3 Qf1 Bg4 h1Q Rc5 Qhh3 Ng3 Rh5 Qe1 d1Q Bd2 Qde2 Qc1 Qeh2 Rb1 a1B+ Ka2+ Bb2 Be1 Rh7 Ra1 Bd5 Kb1 Qhf2 Ra2 Ba1 Re2 Bb2 Bh5 Qd7 Bg4 Q2g2 Bf2 Rh1 Re1 Be6 Re2 Kb3 Nd5 Be5 Ndf6 c3 Nh7 Bc4 Nh5 Bh2 Bh4 Kb4 Ng3 Nd1 Qd5 Qgf2 Re7 Ne3 Qe4 Qb2#
1n1kN1b1/Q1ppq2n/2q4b/3R2bK/2BR1p1n/QpP1r2b/2N3P1/1B1QB3 w - - 0 1 illegal: No proof kernel
4n2q/1b1Pbp1K/qp2Q3/B1pQ3p/1N3N1N/3B2nq/3q1PRR/kn2rQ2 w - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 e4 a5 h4 gxh4 d5 Ra6 e5 Rd6 exd6 axb4 Kd2 Kd7 Ke3 c5 Kf4 h5 Kf5 e5 g4 c3 a4 b3 a5 b6 a6 c2 a7 b2 a8Q e4 g5 h3 g6 h2 g7 e3 Bd3 e2 Bh6 e1Q Nc3 c1Q Na2 b1N Bd2 Qe2 Qf1 Bb7 Nf3 Nc6 Nb4 Nce7+ Kg5 Nf6 g8Q Ne8 Qg6 Nf5+ Qf6 Qb8 Nh4 Be7 Rg1 h1Q Rg2 Rf8 Ra3 Ng3 Kh6 Qd8 Kh7 Qh3 Bc3 Qcd2 Ra4 Qb8 Qe6+ Kd8 d7 Kc7 d8N Qc8 Qe3 Kd6 Ne6 Rg8 Nf4 Qb8 Be4 Qa6 Bd3 Rg5 Qe4 Re5 Qf5 Re1 Qg4 Qe2 Bd2 Ke5 d6 Kd4 d7 Qc8 Qe6 Qd1 Be3+ Kc3 Bd2+ Kb2 Rh2 Bg2 Qad5 Qc1 Ra3 Qd8 Rc3 Ka1 Rc4 Qc3 Re4 Qb2 Re5 Qb8 Rg5 Q8e5 Bc3 Qe3 Rg4 Qd2 Qdc6 Nf5 Na2 Qhe3 Ba5 Qh3 Nb4 Qf6 Qcd6 Bb7 Rgg2 Ng3 Qdd5 Qh8+
5N1r/2Np4/nq1rP2q/1qBRNn2/k1BQp3/B2b2p1/q2P1Qp1/n1KR4 w - - 0 1 illegal: No proof kernel
Br4r1/rNrqQ3/5Brb/RRp1Q2n/P1P3pn/Rr4p1/K4p2/1NNk4 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 axb6 Bh3 b5 Bf1 b4 f3 e5 Kf2 e3+ Kg2 e2 Qe1 e4 Qd1 e3 Na3 Bf5 Nb1 Be4 fxe4 Rh4 Nc3 Rh5 Nb1 Rh8 c4 Kd7 a4 Kd6 d4 e1R h4 g5 h5 f5 h6 b5 h7 c5 d5 Ke5 d6 Kf4 e5 g3 e6 g4 e7 b3 e8R b2 d7 b4 Re7 b3 Nc3 b1R Re8 b2 Bd2 Nf6 Qe2 Nc6 Ra3 Rg8 h8Q Nd4 Qh4 Qc8 d8N Bh6 Nb7 Nh5 Qe7 Qd7 Rd8 Ra7 Ra8 Nf3 Rh2 Rbc1 Nb1 Rc3 Rh1 Rb3 Bc3 Rd1 Bf6 Rd6 Qe1 Re6 Ne2+ Ke4 Nc1 f4 Be2 Nh4+ Kf1 f3 Bd3+ Kf4 Be4 f2 Ke2 Rc6 Bd5 Rc7 Kd1 e2+ Kc2 Rg6 Qc3 e1R Rg1 Re4 Qce5+ Kf3 Bc6 Rg8 Rd1 Ke3 Rd6 Kf3 Bd5 Ke3 Rb6 Rg6 Rb5 Kf3 Na2 Ke2 Nc1+ Ke1 Nd2 Rg8 Kb1 Kd1 Ka2 Rf4 Bc6 Rf5 Bh1 Rfg5 Nb1 R5g6 Nd8 Rab7 Raa5 Ra7 Ba8 Bf4 Nb7 Bh6 Nd2 b1R Bh8 Rf3 Bf6 Rb4 Nb1 Rbb3 Bg5 Rff8 Bf6 Rb8
BNn1r2R/pp1nqkN1/2n1p3/P2Q3K/1P3n1p/Q1N1nR1r/1b2B1B1/5n2 w - - 1 2 illegal: Other
n2B2bK/1b1R1RBB/r5pp/nR2Q1Pp/2n4k/Np1P1Q2/1r3r2/2b1Nb2 w - - 0 1 illegal: No proof kernel
r3Qb1N/4n2p/r4pN1/2r1BPRn/1k2B1bn/1pR2N2/nR1p3P/1KQ1b3 w - - 1 2 legal: proof: d4 e5 g4 exd4 c4 Qf6 b4 Ke7 b5 a6 g5 axb5 g6 bxc4 Bd2 c3 Bc1 Qe6 Qc2 f6 Qd1 Qf7 gxf7 Kd6 Qc2 Ke6 Qd1 Ke7 e4 Kd6 f4 Kc5 a4 d5 e5 b5 e6 g5 e7 d3 e8N d2+ Ke2 c2 Kd3 b4 a5 d4 a6 g4 a7 g3 Nf3 b3 Na3 g2 Ne1 g1N Bg2 Nc6 Nf3 Nce7 Qe1 d1N Nc4 Nf5 Kd2 d3 Nce5 Nge7 Ng6 Nh3 Bb2 c1R Rb1 Nc3 Rg1 Nh4 Nd6 Na2 Be5 Kb4 Rb2 Rc5 Qc1 Bg4 f5 Nf4 Kd1 Nh5 Bh1 Rb8 a8R Rb6 Rc8 Ra6 Rg3 Rb5 Kd2 c5 Rc7 c4 Rg1 Bg7 f8Q Rc5 Qe8 Bf8 Nf7 c3+ Kd1 Rg8 Nfh8 c2+ Kd2 Rd5 Rc3 Rc5 Qa1 c1B+ Kd1 Bd2 Qc1 Bh3 Rg5 Be1 Nd4 Ka5 Be4 Kb4 Nf3 Bg4 Qc2 Rc4 Qc6 Bg7 Qd7 Rga8 Qe8 Bf8 Qd2 Rc5 Qf4 Ka5 Qe3 Nb4 Kc1 Na2+ Kb1 Kb4 Qc1 d2
n1bR1B1r/1QKBQNp1/2PN1p2/prp3n1/1b5B/6n1/rR1R1P2/b1k3r1 w - - 0 1 illegal: No proof kernel
1KnNk1rR/BPp3nQ/b4p2/1rpQrRrp/2P1q3/8/Nn2n3/4BB1Q w - - 0 1 illegal: No proof kernel
RNb1n3/4b1Q1/2RBkbpp/6b1/4p1r1/p3P3/PqBr1rR1/2r1QKBN w - - 1 2 legal: proof: h4 b5 c4 bxc4 d4 cxd3 h5 g6 h6 Na6 Bd2 Nc5 Bc1 Ne6 g3 f5 g4 Ng7 hxg7 fxg4 b4 Kf7 f4 a5 f5 c5 b5 e5 f6 d5 b6 c4 b7 g3 b8R g2 Bb2 c3 Rh2 c2 Qc1 d4 Nf3 g1B Rh1 h6 Ba3 a4 Nbd2 Be7 Bd6 a3 Ne4 Qb6 Rh2 Ke6 f7 Qb2 f8B Nf6 Nf2 Ra4 Ra8 Ne8 Nh1 Be3 Bg2 d2+ Kf1 d3 Qe1 d1R Rc1 d2 Bh3+ Rg4 Rg2 Bd4 g8Q+ Kd7 Qg7 Ke6 Bc5 Bc3 Ba7 e4 Bg1 Bcf6 Ne5 Rg8 Nc6 Rh8 Ra1 Rc1 Nb8 d1R Rb1 Rd2 e3 Bg5 Ra1 Re2 Rb1 Rd1 Ra1 c1B Rb1 Bd2 Rc1 Bc3 Rc2 Rdd2 Rc1 Bd8 Bd6 Bcf6 Rc6 Bde7 Rh2 Qb5 Bg2 Qb2 Bf3 Nc7 Rg2 Rd8 Rc1 Ne8 Rc6 Rc2 Na6 Rc1 Nb8 Rd2 Bd1 Re2 Bc2 Rd7 Rc4 Rd8 Bc7 Rd5 Bd6 Rdd2 Rc6 Rf2+
R3bbQr/8/Bnb2Rp1/B2n4/2R2npp/1B1nrpP1/1N1P2Nk/1K2Q1b1 w - - 0 1 illegal: No proof kernel
1BQ3b1/N2n1Q2/1b1P3p/P1B5/BK1ppr1r/1nb1q2p/3pNN1k/1R2n1R1 w - - 0 1 illegal: No proof kernel
kBK2R2/8/qQP5/nQ1pbBQp/r1p2nRP/r2p3R/3n2p1/3NbbN1 w - - 0 1 illegal: No proof kernel
2k1q3/3NpBp1/R2QK1P1/1N2p1nb/3r2B1/P2pbRB1/2pnN1Q1/r3nb2 w - - 0 1 illegal: No proof kernel forced: wxDB
N1Q5/Q1p3R1/b2q1K2/1k1p1p1p/2bbN1Qr/P1BP3r/2B1n2p/R4nnR w - - 0 1 illegal: No possible last move
B7/p1rkr3/2N3Qb/nb1nKN1Q/3P2P1/pp2p3/qNQ1R1p1/1n2RrB1 w - - 0 1 illegal: No proof kernel
5R1n/n2r3N/3p1BbQ/4Qqpp/1Pp2b1k/5Q1N/Pq1Nr1Rp/K2Bb3 w - - 0 1 illegal: No proof kernel
1N2B1q1/1Q1Q1P2/p1pp2rn/2B2R1q/2P1bp1b/K2nr2B/1p1q1k2/1R4NQ w - - 0 1 illegal: No proof kernel
1rn1B2b/2qRqp1r/Nk1NbPQQ/2nK1p1P/R2p4/1p2p1b1/3R2B1/5Q2 w - - 0 1 illegal: No possible last move
1N6/4Bp2/2NPn3/1qrpQ2K/1bBq1bR1/RB1P1n1p/1bpkp3/RQr5 w - - 0 1 illegal: No proof kernel
1N2n2n/4pR2/p2kP3/Bq1bq1N1/Q3pr1b/RPK1p1B1/1p3Bn1/r1NQ4 w - - 0 1 illegal: No proof kernel
3nk2N/b1Qp3p/B2q4/RRNbr3/1B2nP1P/5R2/NpQ1rpp1/2qK1n2 w - - 0 1 legal: proof: f4 a5 d4 f5 b4 axb4 d5 e5 g3 c6 Ba3 cxd5 Bb2 d4 Bc1 exf4 Bh3 f3 Bf1 f4 gxf4 Be7 Qd2 Bc5 Qd1 Bf8 c4 g5 a4 b5 e4 b3 h4 d3 e5 b4 c5 g4 e6 g3 e7 b2 c6 g2 a5 b3 a6 Bh6 c7 Bb7 c8Q Bf8 a7 Nc6 Qc2 d2+ Kd1 f2 Rh3 Rb8 a8N Nf6 Ra5 Ne4 Nc3 b1N Ba6 b2 Rf3 Bg7 Rb5 Bd4 Na2 Ba7 Qc7 Rg8 Nb6 Rg5 Nh3 Re5 Na4 Rc8 Qa5 Qb6 Ng5 Qe3 Nc5 Nd8 Nf7 Bd5 Nh8 Rc6 Qc7 Rce6 Nb4 Na3 Na2 Nc4 Nc3 Ng3 Ra5 Nf1 Na2 Nd6 Ng6 Kf7 e8R Ne4 Rg8 Re8 Nh8+ Ke7 Rg5 Kf8 Qa4 R8e7 Qb3 Ke8 Qc2 Rf5 Qb7 Bc4 Rg6 Qd3 Rb6 Neg3 Qc7 Re2 Qb3 Ne4 Rbb5 Qe3 Kc2 d1Q+ Kb1 Qd5 Bd2 Qdd4 Kc2 Re5 Kd1 Qd6 Qc2 Bd5 Bb4 Qc1+
5N2/2p2k2/Qr1p1B1B/q1p1r3/nRPp3K/qb5Q/pPb2q2/NR1RnB2 w - - 0 1 illegal: No proof kernel
3N3R/bqpn2pb/1rR2B1b/8/2p2N2/2RPQ3/Qr1pBP1p/KqnNk3 w - - 0 1 illegal: No proof kernel
1n1k1bqn/P2B3Q/rR1p1q2/2PpN3/bN1R4/Kppr1Qpb/2N3Q1/6B1 w - - 0 1 illegal: No proof kernel
1B1N1Qn1/p1bp1pP1/pn5N/B2rQ3/3q4/4RK2/N1Prb1pq/2RB2kn w - - 0 1 illegal: No proof kernel
1k2BnrK/1n2Q2N/3n4/n6p/p1pb1rp1/P1RQ2QP/2Np2RN/B3qb2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 b4 f5 g4 fxg4 c4 Bxb4+ Bd2 Bf8 c5 b4 c6 b3 Bh6 Nxc6 Bc1 Nb8 Kd2 g5 Ke3 h5 Kd4 d5 f4 Kd7 e4 c5+ Ke3 Kc7 e6 a5 f5 a4 e5 b2 e7 c4 Kd4 g3 e8Q g2 e6 Nf6 Ke5 d4 e7 d3 Qg6 d2 e8Q Ne4 f6 Bg7 Na3 b1N Bb2 Rg8 Qe1 Bh3 Nf3 g1N Nc2 g4 a3 Nbc3 Qg3 Nc5 Qd3 Nb5 Bg2 Ne2 Rag1 Nd6 Ba1 Ncb7 Qe7+ Nd7+ Ke6 Qc8 f7 Bd4 f8N Qe8 Nh7 Rg7 Rc1 Ra6 Rhg1 Kb8 Bh1 Bg2 h3 Bf1 Nh2 Ra7 Bc6 Nf8+ Kd5 Rf7 Rg2 Rf4 Bd7 Bg1 Ke5 Nd4 Bc6 Nb3 Bb5 N3a5 Bd7 Rd4 Kf6 Rf4+ Kg7 Bb6 Kh8 Bd4+ Qg7 Qe1 Be8 Nc5 Qe5 Rg7 Qe7 Ncb7 Rb1 Qe6 Rb3 Qe1 Rc3 Rg8+
1N2R2B/1bR2nBr/1rqp1p2/4p1b1/BkPQ2n1/p7/P2nQ2p/n2N1KQ1 w - - 0 1 illegal: No proof kernel
r1N1r1Q1/1PQn1BRr/4p2R/Q3p1K1/7B/P1rp1p2/kp3n2/bq2BbN1 w - - 0 1 illegal: No proof kernel
1b1BK3/P1p2Q1b/1P1pp1R1/2pRb1r1/1r1BR2N/3p1nn1/k7/N1q1Q1bB w - - 0 1 illegal: No proof kernel
5R2/3NQRqn/1B2r3/1pPR2pN/4B1Pq/2pr1npn/1Q1p2qk/Kb3B2 w - - 0 1 illegal: No proof kernel
3bkr2/2bb1p2/pBB2P2/KNQ1N1QR/2q1r1Bp/1r2pP2/2Rp3n/4q2N w - - 0 1 legal: proof: d4 b5 h4 c5 a4 cxd4 f3 bxa4 h5 Nc6 h6 Ne5 f4 Nf3+ exf3 gxh6 Rh4 h5 Rh1 h4 Kd2 h5 b4 e5 g4 d5 c4 a3 b5 a6 b6 h3 f5 a2 b7 d3 Kc3 e4 b8N h2 f6 d2 c5 d4+ Kb4 d3 g5 Be7 g6 Bh3 g7 Bc8 Qc2 d1R Nc6 Qd6 Na3 Bg4 Be3 d2 Nb5 Qd3 Nh3 Qc4+ Ka5 Rb8 Rc1 a1B Ne5 Bd7 c6 Re1 c7 Nh6 c8B Rf8 g8Q Ng4 Bb6 Bd8 Nf2 Re2 Qg5 h4 Rg1 Bd4 Nh1 Bc5 Bb7 Bd6 Bc6 B6c7 Bh3 Re3 Rg3 Rb3 Qc3 e3 Rc2 Rc8 Qb4 Ra8 Qc5 Rb8 Nf2 h1Q Rg1 Nh2 Bg4 Rb7 Ra1 Qhf1 Nh1 Qe1 Ra4 Qcf1 Re4 Rb4 Rf4 Re4 Rf5 Qc4 Qg6 Rh8 Rh5 Rf8 Qg5 Qc1 Na7 Bd6 Bc7 Rb3 Nb5 Qe1 Bb6 B6c7
nN3R1N/2p1qp1p/1QpqnPQ1/r3pB2/6q1/n1Rb3P/4R3/1K1k1NrB w - - 1 2 legal: proof: c4 a5 d4 g5 f4 Nf6 b4 axb4 c5 Bg7 c6 dxc6 f5 Ra4 Bf4 gxf4 d5 Ng8 e3 Bd4 exd4 Ra8 Kd2 Kd7 Kc2 Kd6 g4 b5 a4 e5 a5 f3 g5 f2 f6 Qe8 h3 Ra6 g6 Qe7 g7 Bg4 Ra2 Bf3 Nd2 b3+ Kb1 b4 Ne2 b2 Bg2 f1Q Nf4 Qe8 Ng6 Ne7 g8Q Qg1 Nf1 Nc8 Qb3 Be2 Qe3 Ra7 a6 Qe7 Rh2 Bc4 Ra3 Nb6 Rc3 N8d7 Bh1 Qg4 Re2 Nf8 Qg7 Rg8 Nh8 Bb5 Qg6 Na8 Qg1 Ne6 Qf2 Rb7 a7 Rb6 Qe3 Ra6 Qf2 Ra5 Qe3 Nb6 a8B Ba6 Bb7 Na8 Bc8 Rg7 Kc2 b1N Kb2 b3 Qg1 Nd8 Bf5 Na3 Kc1 Nc2 Kb1 Ne6 Qf2 Kd7 d6 b2 d5 Bd3 Qb6 Qf4 Qh6 Rg1 Qg6 Qg4 Qf2 Kc8 d7+ Kb7 d8R Ka6 d6 Kb5 d7 Ka4 Rf8 Qd6 d8N Kb4 Rc4+ Kb3 Nb7 Qe7 Rb4+ Kc3 Nc5 Qd6 Nd7 Qe7 Re1 Qd6 Qb6 Qe7 Nh2 Kd2 Nb8 Qd6 Ra4 Qe7 Ra3 Qd6 Ka2 Qe7 Re4 Kd1 Nf1 Qd6 Re2 Qe7 Kb3 b1Q+ Kc3 Qa1+ Kb3 Qc3+ Ka2 Qcd4 Kb1 Qdd6 Rc3 Na3+
2Qnq1r1/4p3/1N2Rpp1/B2Q1PP1/1Br1bBq1/1p2rN2/1KRp4/N1n1q2k w - - 1 2 legal: proof: d4 d5 b4 c5 e3 cxd4 b5 d3 b6 d2+ Ke2 d4 Kd3 axb6 Ke2 b5 Ba3 b4 Bb2 Ra4 Bc1 Ra8 g4 h5 g5 g6 Bh3 d3+ Kf1 Bg7 Bg4 Bd4 exd4 hxg4 f4 Kd7 h4 Kc6 c4 b5 a4 b3 f5 b2 h5 b4 a5 g3 a6 b3 d5+ Kd6 c5+ Ke5 c6 Ke4 h6 Qa5 h7 Qb5 d6 Nd7 a7 Bb7 c7 Ne5 c8Q Nh6 d7 Rg8 d8B Qe8 Na3 b1R h8B g2+ Kf2 Kf4 Nf3 Be4 Rh2 Kg4 Ke3 Kg3 Kd4 g1Q+ Kc3 Qe1 Bf6 Rb8 a8N Rb4 Nb6 Rb2 Rh4 Kg2 Nc2 Rb1 Rg4+ Kh1 Ra2 Ra1 Ba3 Rc4+ Kb2 Rc1 Na1 R1c3 Qb1 d1Q Bb4 d2 Qd3 Qde2 Qd5 Re3 Bc7 Qg2 Ba5 Qgg1 Bd6 Qg2 Bdb4 Qh3 Rg2 Qg4 Re2 Nd3+ Ka3 Qgh4 Rc2 Qg4 Be5 f6 Bf4 Nc1 Kb2 Nf7 Qa6 Rec3 Qc8 Nd8 Re3 Bd3 Re5 Be4 Re6 Re3
r2B4/5brB/6Qp/nK2k1n1/1pnpNp1R/2r1PPq1/QR4qp/1R1N1N2 w - - 0 1 legal: proof: d4 a5 c4 e5 h4 exd4 b4 g5 Bb2 gxh4 Ba3 Bc5 Bc1 Bb6 c5 axb4 Bb2 b3 Bc1 Ba7 Qd3 b5 Qd1 Bb6 cxb6 Qg5 Qd3 Qf6 Qd1 Qd8 Kd2 Ke7 Kd3 Kf6 a4 c5 g4 d5 e3 h6 b7 b2 f3 h3 a5 h2 g5+ Ke5 g6 f5 a6 Nc6 b8R Nf6 g7 Qg8 a7 Ne4 Ra4 Ng5 Nc3 b1N Qc2 Na3 Nd1 Nc4 Ba3 Rh7 Ne2 Be6 Ng3 Bf7 Rb7 Qb8 g8N N6a5 Nf6 Rg7 Nfe4 Qd6 Rb4 Qc7 Rb2 Qb8 Bh3 f4 Nf1 Qg8 Bf5 b4 Bh7 Qc8 Rb6 Qg4 Rg6 Qg3 Qg2 Nh3 Rg4 Ng5 Qh3 Qg2 Qh5 Qg3 Qg6 Qg2 Rh4 Qg3 Kc2 d3+ Kc1 d2+ Kc2 Nb7 Kb3 Nba5+ Ka4 Qg2 Ndf2 d1Q+ Kb5 Qe1 Nd1 Qeg3 Rg1 Nb6 Rh1 c4 Rg1 c3 Rh1 Rf8 a8Q c2 Qa7 c1R Qa6 Nb7 Qa4 Rc4 Qb3 Rc7 Qa2 Rc3 Nfd2 Rc6 Rc2 Nd8 Nb2 Nb7 Rb1 Ra8 Nf1 Na5 Re2 Rc2 Nd1 Nbc4 Bb2+ Rc3 Nf6 Ke6 Rc2 Rb3 Ne4+ Kd7 Bd4 Rc3 Bb6 d4 Rcb2 Ke7 Bd8+ Kd7 Nf6+ Ke6 Ne4+ Ke5
3N2qQ/2qN1Rp1/Bb1pp1bR/5p1r/1Kp4Q/1nP1q3/3PR1B1/kb2Qn2 w - - 1 2 illegal: No proof kernel
3QR1nB/N2pRK1Q/1B2N3/1ppR3q/pPp3b1/nQ1nk3/P1q3r1/3q3r w - - 0 2 illegal: No proof kernel
1Q6/nrP2prB/2nq2p1/2N1R3/NrK5/B1bpRn1p/p4P1R/Qq1k1N2 w - - 0 1 illegal: No proof kernel
2Q2qN1/kn3q1p/qN1R1p2/1R2Br2/1P2p1pp/4b1PN/r1Rq1Q1n/3K1B2 w - - 0 1 illegal: Other
3qk3/nNQ1p3/PbPn1r2/2Qp4/N3p2B/1BRK1npb/p4p1r/RRN5 w - - 0 1 illegal: No possible last move, all moves rejected
Bb1Nr3/B1KR3Q/1p4pp/R4p2/2Q1q1nQ/3pr3/2PpnNRP/1k1qb3 w - - 0 1 illegal: No possible last move
2Q3b1/2Bnp1K1/Q2p1rrp/2NPRN2/1k1pP1q1/5Q2/1p2R1pr/1nR2B1n w - - 1 2 illegal: No possible last move, all moves rejected
B1N1QR1B/2RKp1p1/3pn1b1/bp1n4/Q1Pkn3/3Pr2p/b1p4q/4N1QB w - - 0 1 illegal: Other
2r1n1N1/KRB5/q1Rbp1N1/prp3N1/Pp2Q1nP/1B4k1/1pQp2p1/1R2n3 w - - 0 1 illegal: Other
2bN1b1b/1r1qB1pq/2b5/R6p/r1nB3P/QB1Rb1P1/3N1r2/1QQKn1nk w - - 0 1 illegal: Other
1bn1qk2/2B1p1q1/nnR5/3bb2q/QRBp1r2/QQ5N/3PPnBn/1r3N1K w - - 0 1 illegal: No proof kernel
1q3B2/1R2bNnp/R2Nr1pQ/K5Q1/3Q1n1P/1qnrrR2/1q1bB1Pb/3b3k w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 Kd2 Kf7 f4 Kf6 a4 Kf5 h4 e5 c4 d5 c5 b5 a5 g6 a6 d3 a7 b3 Kc3 b2 Kb4 d2 Ne2 Kg4 f5 e3 f6 d4 f7 e4 Rh2 d3 Na3 b1N Qb3 d1Q Bb2 d2 Bf6 Nh6 Qe6+ Nf5 Ng1 Kg3 Bd4 e2 Bg7 e1B Nc2 e3 Ra2 e2 Qc4 Nc6+ Kb3 b4 Ka4 b3 Ra3 Ne5 c6 Nd3 c7 b2 Rc3 Be7 Nh3 Re8 Rb3 Nc3+ Ka5 b1Q f8Q Nf4 Ng5 Qb2 Nd4 Ba6 Qd5 Qb8 Rb7 Qdb3 c8Q d1R Qcc5 Bd2 Nf7 e1B Rh3+ Kf2 Qe4 Kg1 Rf3 Be2 Nb5+ Kh1 Qed4 Bg3 Nbd6 Bh2 Bh6 Ng7 Qg5 Bd3 Be2 Bc2 Rb6 Re1 Rb7 Bd1 Qgc5 Qc8 Qg5 Rb8 a8R Qc7+ Rb6 Rbd8 Ra6 Qb8 Rb7 Rd7 Bd3 Re6 Be2 Ngh5 Qfh8 Re3 Bf8 Rdd8 Qhf6 Ng7 Qh6 Rd7 Nb5 Rd6 Qfg5 Rde6 Nbd6 Rc8 Qd3 Rc4 Qdd5 Rd4 Qe4 Rdd3 Qee5 Qe8 Qd4 Qb8
r3q2R/7n/2Bpr3/1bNP2rk/Q1r3p1/KQR1b1Pr/2nqRBN1/1Nr3r1 w - - 0 1 illegal: No proof kernel
1N5K/B2Bbp2/Br2bR2/pr2nR1q/P5rQ/n3Q1br/3Q1Pnb/1k1b3N w - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 g5 c5 gxh4 c6 bxc6 Ba6 c5 Bf1 c4 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 Kd4 b4 a5 g4 c5 a4 h5 d3 c3 b5 c2 b6 c4 b7 c3 Nh3 e3 Qe1 e2 Na3 Be6 Qd1 e1N Ra2 Qd5+ Kf4 Ra6 g5 Nc6 b8Q Ne5 g6 Nf6 Kg5 Ng2 g7 Nfd7 g8B Rb6 Nf4 h3 Qe2 h2 Qb7 h4 Qc7 h3 Qd8 Rh4 Bh7 Nc4+ Bf5 Nde5 Rb2 Rg4+ Kh5 Rb5 Rg1 Rb6 Rb5 h1B Qe8 h2 Qd2 Qc5 Bb2 c1B Ne2+ Kd5 d4 c2 Bc3 Bb2 Ng3 c1B Nc2 Na3 Be2 Ba1 Re1 Bab2 Bf1 Ba1 Re2 Kc4 Nb4 Kb3 d5 Bcb2 Na6+ Ka2 Re4 Kb1 d6 Qd5 Bb4 Bc1 d7 Bd4 Qc3 Bf4 d8Q Bc5 Nb8 Bd6 Qd2 Qc5 Ne2 Bg3 Rf4+ Nd3 Qc6 Bd5 Qa8 Bh4 Ng3 e5 Re4 Rc6 Rb6 Nge1 Qa7 Bf3 Qa8 h1R Nd7 Ng2 Rf4 e4 Nb8 e3 Qa7 Rh3 Bd7 Bd1 Nh1 Be5 Qf6 Be7 Kh6 Bc7 Rb5 Be6 Kh7 Bcd6 Rf3 Bh2 Kh8 B4g3+ Qh4 Qg5 Rf6 Qh5+ Rh6 Rd6 Rf5 Ne5 Bc5 Rc6 Ba6 e2 Qe1 Rd6 Be3 Rd5 Qd4 Rc5 Qd5 Rc6 Ba7 Rb6 Qc3 e1R Qcc5 Nec4 Qd2 Re5 Qcd4 Reb5 Q4e3 Qg5 Rg6 Ne5 Rgf6 Qh5+
2qBK3/nrR1b1Nk/B2p2p1/qqR5/NQ3Q2/3P1r2/R1qqbnP1/1Q2r1r1 w - - 0 1 illegal: No proof kernel
QB2R3/Q1Kb3n/2R3q1/2p1pr1r/N1q1P1Q1/2PrbBq1/rBnk4/Nq2b3 w - - 0 1 illegal: No proof kernel
2qN1qQb/Np3n2/2q3b1/1PQ2RB1/B1pK1rk1/qNP2R2/3n1r2/r2B1n1r w - - 0 1 illegal: No possible last move
nNr2Nk1/3qpR2/1QqB4/1b6/R2pPKBr/1NbPb3/n3qB2/bn1Qn3 w - - 0 1 illegal: No possible last move, all moves rejected
1rb2b1N/2pq4/B2R1q1R/k4bBN/q1Bb1p2/2P2P1r/1QQ2nr1/2Kr1n1Q w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 d4 Kd7 Kd2 Kc6 a4 Kb6 g4 h5 c3 f5 g5 e5 g6 b3 d5 e3+ Ke2 b2 d6 f4 f3 e4 g7 h3 d7 h2 Nd2 b1R Bh3 h4 Bf5 h3 Bh7 Ka5 Bf5 b5 Qb3 b4 Kd1 e2+ Kc2 e1B Nf1 e3 Be4 e2 Qa2 Nc6 Ba3 Rd1 Bd3 Nh6 g8B Rb8 Ng3 Qf6 d8Q Ng4 Qb2 Ne7 Bgc4 Rg8 Nh5 Nf5 Qe8 Bd2 Qe4 e1Q Ba6 Qeh4 Bdc4 Be3 Rc1 b3+ Kb1 Qc6 Qec2 Qe6 Be7 Ng3 Bd8 Bd4 Bg5 Re1 Rd1 Nf1 Kc1 Nf2 Ne2 Qf5 Neg3 Qd7 Nf5 Rg6 Ne7 Rg7 Bh6 Rg2 Ng6 Qhd8 Nh8 Qf6 Rg1 h1R Bg5 Rg4 Rg3 h2 Rh3 Rg3 Rh4 Re2 Rd2 Rh3 Rd3 Bb6 Rd6 Bd4 Ng3 Rg1 Rh6 h1Q Nh5 Rd2 Bab5 Rg2 Ba6 Rd3 Kb1 Qfe6 Qcc1 Ng3 Qa1 b2 Bb7 Nd1 Qc2 Qf6 Qa3 Qe1 Qab3 Qde8 Qa3 Q1e6 Qa2 Qc6 Qa3 Kb6 a5+ Ka7 a6 Kb6 a7 Qd7 a8Q Nf2 Qa1 Rd2 Q8a2 Rd3 Rd5 Qa4 Rd6+ Ka5 Bba6 Rd2 Qd1 Rd3 Qh1 Nf1 Qb3 Rd1+ Kc2 b1B+ Kb2 Rd3 Kc1 Rd2 Qab2 Bf5 Q3c2 Rd1+
Q4rB1/1b1R2q1/q1b1Rnbp/3Np2P/b4Q1b/R3P1q1/1KrQ1p2/4BknN w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 gxf6 Nd2 f5 Nb1 f4 Kd2 b5 h4 e5 a4 Ke7 c4 Kd6 Kc2 Kc5 g4 d5 g5 f5 g6 b3+ Kb2 b4 a5 d3 g7 Kd4 h5 h6 a6 d2 a7 Ke3 c5 Kf2 c6 d4 e3 d3 c7 f3 Ra3 f4 Ra2 Bb7 c8R Qf6 Rc2 Nc6 Rc5 Be7 Nc3 Rc8 a8Q Nd4 Kb1 b2 Rca5 Ne2 Qa4 d1Q Qb5 d2 R5a3 Qe1 Qe8 d1B Ra6 Ba4 Nb5 Rc2 Nc3 Qf8 Rh4 Nf6 g8Q Qg7 Qgf7 Rf8 Ra3 Bbc6 Ka2 b1B+ Ka1 b3 Qd7 Bb7 Re6 Bd8 Bg2 Be7 Bh1 Kf1 Qd2 f2 Bd5 f3 Nh3 Ng1 Rd4 Nd7 Ne4 Ba2 Qda5 Bh4 Ng3+ Kg2 Rd1 f1Q Re8 Rh8 Nh1 Qeg3 Bd2 Rf8 Be1 Qa6 Nf4+ Kf1 Rd4 f2 Qd2 Bac6 Qf5 Nf6 Bg8 Rc5 Rd3 Bb1 Re7 Bc2 Rdd7 b2+ Ka2 b1B+ Kb2 Rc3 Re6 B2a4 Nd5 Bd3 Qg5 Bg6 Qf4 Rc2+
B6b/n3p1k1/1n1nP2n/rp2r1pb/2bB2B1/1KNN2Nq/1PQ3qQ/4R1nR w - - 0 1 illegal: No possible last move, all moves rejected
k7/B1b1q2N/3q1Rpp/1Br1BN2/1b4bb/1nrR2rP/1n1Q1pPK/2Qb1Q2 w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 Kf2 Kd7 e4 Kc6 d4 b5 a4 Kb7 a5 c5 d5 f5 h3 c3 d6 c2 d7 g6 e5 b3 e6 h6 e7 b2 e8Q b4 Bb5 b3 Qe6 f3 Kg3 f2 Qde1 f1Q Q1e5 c4 Q5d5+ Nc6 Ra2 f4+ Kh2 f3 Qd4 c3 Bf4 c1B Qg4 f2 Be2 c2 Bb8 Qe1 Qc4 Nd4 Qc5 Nf6 Qc3 Bb4 Nf3 Bf4+ Qg3 c1B Na3 b1R Nb5 b2 Be5 Nb3 Nbd4 Nd5 Nf5 Ne3 Bb5 Nc4 Qd2 Qf8 d8B Qd6 a6+ Ka7 N5d4 Bg4 Nf5 Rc8 Bb6+ Ka8 a7 Rc5 Ra6 Rhc8 Ng5 Ra1 Rg1 b1B Nh7 Ra3 Rf1 Bg5 Qgd3 Bc2 Rh1 Nb2 Qf1 Rc3 Rg1 Bcd1 Be3 Qc7 Rf6 Qd6 Bd4 R8c5 Be3 Bh4 Rh1 Kb7 a8Q+ Kc7 Qe4 Kb8 Qb1 Ka8 Qa1 Rc6 Ba7 R6c5 Qc2 Bcg5 Qac1 Rg3 Q2d2 Bf4 Qfc4 Qe4 Re1 Qb7 Re3 Qbe7 Qf1 Qdd7 Bd4 Bc7 Be5 Qdd6 Rc3 Na1 Re3 Rac3 Rd3 Nb3
3k1B2/p2qp3/1b2Rbb1/Q4K2/PRQN1n2/Rb2P1rp/1n4n1/q1BB1bNr w - - 0 1 illegal: No proof kernel
B2N1r2/2bn1pnp/b5kr/1RR2q2/1BB5/bn2NP1K/1p3Q1P/qn1n1Q1N w - - 0 1 illegal: No possible last move
n3K3/6pQ/2q3PQ/b1q3BR/3rBp1R/kN1qbPb1/N1p1b1BN/r3nn2 w - - 0 1 illegal: No proof kernel
1Q3KNr/1p2bB1p/NB3N1R/1P1Rq1kP/r4n2/2qQ4/2bpnb1R/2b1qn2 w - - 0 1 illegal: No proof kernel
rN1k1K1Q/3p2R1/1n1p3r/2b1r3/1pnBR1Qq/bPNP3q/1nbn4/1BBQ4 w - - 0 1 illegal: No proof kernel
b4qB1/N3bnp1/1rb2q1p/k1K1q2P/2nB2Q1/3R2P1/qRp1Q2N/r3R1Br w - - 0 1 illegal: No possible last move
BQ6/q1p1n3/1pPkN2K/Br4p1/2B1r1bQ/q1bn1bRb/NPR2R2/r4n2 w - - 0 1 illegal: No proof kernel
2KbR1B1/3pq2N/1p1r2B1/p1Q3BR/1P1b1r2/Qb3knr/PNq3R1/4nq1r w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 g5 cxd4 g6 hxg6 Bd2 g5 Bc1 g4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 b4 f5 h4 a5 c4 g5 h5 g3 e3 d3 c5 d2 c6 g4 h6 g2 h7 g3 c7 f3 Kb6 f2 Nh3 g1B Bb2 f4 Bc3 f3 Bd4 g2 Na3 Ne7 Rc1 Nbc6 Nc4 Ne5 Qa4 d1Q Nb2 Nf5 Rc2 Nd3 Bf6 Ne1 Bc4 f1Q Bg5 f2 Qa3 Be7 Bg8 Kf3 e4+ Qdd3 e5 Ng3 e6 Qf8 Rd2 Bd8 e7 Ra6+ Kc5 Qf7 e8B Rd6 Re2 Qe7 Bg6 Qb3 Rh2 b6+ Kb5 Bb7 c8Q Rf6 Qc5 Bd5 Ka6 Rd6 Rh1 Bc4+ Kb7 Qd3 Kc8 Bb3 Rh2 Qc2 Re5 Qfc4 Re4 f1R Rh4 Be3 Rh5 g1R Rg2 Q4e2 Nf2 Qb5 Ng4 Rh1 Nf6 Rh3 B8f7 Rf8 h8R Rfh1 Nh7 Qf1 Bc4 Rf7 Re8 Rf4 Bg8 Bd4
2B1b3/3KnR1n/Rq1pn2b/B2PQQp1/pNb1r3/kN4nn/P7/1BrQ1b2 w - - 0 1 illegal: No possible last move
B3Nn1Q/B1r1Q2n/5rRp/1R2n3/1b2p2P/2n1Kp1q/1nb1P3/1bQ1BNbk w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 g5 b5 gxf4 b6 axb6 Na3 b5 Nb1 b4 Kf2 Kd7 a4 Ke6 g4 Ke5 h4 b5 d3 c5 a5 f5 g5 h6 a6 f3 g6 f4 g7 b3 a7 b4 Ra4 c3 Nd2 c4 Ra1 c2 Rb1 c3 Bb2 c1N Rh2 Nf6 g8Q Rh7 Bg2 Nbd7 Ba3 b2 Qc2 b3 Qd1 c2 Ra1 b1N Bh3 b2 Qg2 Nc3 Bg4 b1B Rh1 e6 Bh5 Bb4 Nf1 Nf8 Nh3 Rc7 Rg1 N6h7 Ng5 Qd7 d4+ Kf5 d5 e5 Nf7 Ke4 d6 Qh3 Nh2 Bf5 d7 Re8 d8B Re6 Qgf1 Rf6 Qd6 Bg6 Qe1 Bf5 Rg6 Nd3+ Kg1 c1B a8Q+ Ke3 Qe7 Bd2 Qc1 Nb2 Nd6 Bfc2 Ne8 Bd6 Bb4 e4 Ra5 Be5 Rb5 f2+ Kh1 f1N Kg1 f3 Qb8 Kf4 Kf2 Ne3 Nf1 Nec4 Qa8 Ra7 Bb6 Rc7 Ba7 Bd6 Bg4 Ne5 Ba5 Bb4 Bd7 Bd6 Bc6 Bb4 Qd1 Bc1 Qad8 Bd2 Ba8 Be3+ Ke1 Bg1 Kd2 Bh2 Qc1 Ng5 Ne3 Kg3 Nf1+ Kg2 Ke3 Kh1 Qb8 Ngh7 Qc8 Bd6 Bb4 Nca4 Be1 Nc3 Qce6 Ba3 Qg8 Bb4 Qh8 Bg1+
1B2nb1B/b3r1pR/pqQ1nN1p/P1N3Q1/r1n1Q3/5R2/q4KbP/k2Bb1n1 w - - 0 1 illegal: Other
1N2q3/1p1q2KQ/Bnp5/R1Pr4/1PQ3pb/2b1rbp1/q2RBr2/k1N1nQB1 w - - 0 1 illegal: No possible last move
2N1N3/1RNp1qpn/n5B1/2r2pkq/1R3nbr/1Kb2PQb/p3QBP1/5Rr1 w - - 0 1 illegal: No proof kernel
1N6/1B4R1/K5bb/1bqn1p1p/N1Qn3P/B1Bpp1RR/1b1Prk2/n2br2Q w - - 0 1 illegal: No proof kernel
1brr4/b2Q3p/p4qbk/nN3p2/2b1Br1P/P1K5/pR1RQnnB/5QNR w - - 0 1 illegal: No proof kernel
4B1n1/2BB1q2/1R2nkp1/3bb3/npR1r1rp/bPRQ2bP/1NK1p3/NQ1q4 w - - 0 1 illegal: No proof kernel
1RnK4/4BpR1/qb1R1Prk/1prq3b/2BN2p1/3b3p/1nQ2bP1/QNn4N w - - 0 1 illegal: No proof kernel
2bn1B1r/1rQQnp2/k1q2p2/5Pbp/1n4q1/NKQR3P/1NN1npB1/1R3r2 w - - 0 1 illegal: No proof kernel
5Rq1/rp4k1/QP1Nnb2/4qK2/1qN1r1rp/2pnqQp1/3Q1B1P/3bRB1N w - - 0 1 illegal: No proof kernel
nk2N3/1B1q3n/prR5/QQpK2BB/P1Pp4/1Rb3r1/br1r1pR1/q4N1q w - - 0 1 illegal: No proof kernel
1RQr3B/1Bq1Bb2/1Qpn2r1/1p3Kn1/p2N1pR1/P3bQ1q/N2krP1q/6r1 w - - 0 1 illegal: No proof kernel
7R/q4r1p/p1n1bbrq/2N2BkP/1Qp1Bn2/K2pQ1B1/1bP3nR/NQ2b3 w - - 0 1 legal: proof: d4 e5 a4 exd4 g4 b5 g5 bxa4 g6 fxg6 Qd2 g5 Qd1 g4 Kd2 Ke7 e4 Kf6 f4 g5 b4 c5 h4 d5 b5 c4 f5 g3 b6 g4 b7 a3 h5 g2 e5+ Kg5 f6 a2 f7 d3 Kc3+ d2 Kb2 d4 e6 d3 e7 a6 e8B g3 Bc6 Qf6+ Nc3 Ra7 Qf3 Bb4 f8Q Qh6 Be4 Nf6 Na4 Be6 Rh2 Rg8 Rb1 Rg6 Nc5 Nd5 Ne2 g1Q Nd4 g2 Ndb3 Nc6 b8Q Nf4 Qe3 Rf7 Na1 Ba5 Ka3 d1N Be2 Be1 Bg4 Qf2 Bgf5 g1B Qe2 Qd4 Qe3 Qd7 Bb2 Qa7 Be5 Bgf2 Rb4 Bc3 Rb7 Bfe1 Re7 Bd4 Re8 Bdc3 Bc7 Bh8 Qb1 Bf6 Nab3 a1B Rc8 Bac3 Na1 Bce5 Ra8 Bd4 Qfb8 Bdc3 Q8b4 Bce5 Rh8 B5c3 Qf3 Ne3 Bb8 Neg2 Bd6 Nh3 Bg3 Nhf4 Qe3 Bb2+
QRrQNBBb/n1n2b1p/1q3b2/ppn5/6kP/P1K2Rqp/4Q3/2Rbr1N1 w - - 0 1 illegal: No possible last move, all moves rejected
2N5/1p2bk2/2q1rB1p/rn2q1pN/6qp/Q1n2N1b/BP2Q1RP/n3KRqQ w - - 0 1 illegal: No proof kernel
NQ4nb/2BppqR1/1q1q2B1/q2N2br/Q2R1pnp/2KPP3/2B4k/5bNr w - - 0 1 illegal: No proof kernel
q2N3N/p1n3B1/QpRn1b1K/1n1br1RQ/3p1Rn1/5B1p/PP3qrQ/kr6 w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 d5 gxh4 d6 cxd6 Qd3 d5 Qd1 d4 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 Kh5 d5 c4 f5 e4 h3 g4 f3 c5 f4 c6 f2 c7 b6 g5 h2 g6 d3 g7 Kd4 e5 d2 e6 f3 e7 Na6 e8Q Bb7 c8Q Be7 Qe6 Nh6 g8R Nf5 Q6f7 Nc7 Nc3 Nd6 Kh6 Bf6 Be2 f1N Rg2 f2 Na4 Ne3 Qee7 f1Q Rb1 Re8 Bf3 Kd3 Ne2 d4 Qh5 Qf2 Rg5 Bd5 Qg1 Kc2 Nf4 d1N Ng6 Nc3 Nc5 N3b5 Nh8 Rc8 Qef7 Re5 Ne6 Qg8 Qg3 Qd8 Rg1 h1R Rf1 Rg1 Qhh2 Rg2 Qfh5 Qe8 Qgh3 Qc6 Q3g3 Qa8 Bd2 Re8 Nd8 R8e7 Rbd1 R7e6 Bc1 Kb1 Qgh3 Re8 Qc8 Ka1 Qa6 Rf8 Rd3 Rg8 Rc3 Rg1 Rf5 R8g2 Rc6 Rh1 Rf4 Rhg1 Re1 Rh1 Re2 Rhg1 Rec2 Rh1 Bd2 Rb1 R2c5 Nec4 Qg5 Nce8 Rh4 Re3 Kh5 Be6 Re5 Nec7 Qg6 Bd5 Rg4 Re4 Bh6 Ne3 Reg5 Re8 Bg7 Re5 Qe8 h6 Kg6 h5 Kh6 h4 Qh5 h3 Rf4 Ng4+
7n/bBBN1rqk/QrrN1b2/p1KRpn2/3R1pn1/3QP3/P1pB1p2/3bN3 w - - 0 1 illegal: No possible last move
1K2R3/3Q1p1Q/1p1NB2n/B1k1NP1n/1r2pBb1/1pN1b1q1/r2pPr2/R1b3q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 Kd2 g5 Kd3 e5 Kc4 Ke7 Kc5 d5 h4 b3 c4 d3 f4 d2 a4 e4 a5 d4 a6 g3 a7 g2 h5 d3 h6 g4 h7 g3 Nc3 Qe8 Kb6 Kd6 Nf3 Bg4 Ne5 Nh6 Rh3 Rg8 h8B g1R Bf6 Rg2 Bd8 Rf2 Rh5 Be7 Bh3 g2 Qh1 d1Q c5+ Ke6 Kc7 g1B c6 Ba3 Kc8 Kd6+ Rf5 Rg6 c7 Kc5 Bd2 Re6 Rg5 Qe7 Rg8 Qh4 Re8 Qg3 Bg5 b6 Kb7 Rf6 c8N Bc1 Nd6 Nd7 Be1 Rf5 Kc7 Rd8 a8Q Nf6 Qa4 Ra8 Qd7 Ra2 Kc8 Nh5 Kb8 Rg2 Bd2 Be3 Qh2 Qg1 Qh1 Bf3 Bg4 Rf2 Be1 Rf6 Be6 Bg4 f5 Rg6 Bf4 Rg8 Nd1 Rg6 Ba5 d2 Bd5 Re6 Nc3 Re7 Qh2 Ra4 Be6 Rb4 Qd8 Ra7 Qd7 Ng7 Qh5 Ra6 Qg6 Nh5 Qh7 Rc4 Bb4+ Kd4 Qb7 Ra2 Ba5 Rb4 Qd7 Kc5
2Bn1b1n/Bp1rpNQ1/2Bp2r1/7K/QP3R2/1pN2p1b/RQn1P2k/2bq1n2 w - - 0 1 illegal: No proof kernel
1q4qB/3pbQ2/n1r4R/2NQ2pR/qNpp2n1/1QPB1p1q/2br2PR/1K2k3 w - - 0 1 illegal: No proof kernel
1n1B1Nnr/RK1p1pqp/nR4pb/5P2/r5p1/qB1P3k/1QQ1B2n/QN5b w - - 0 1 illegal: No proof kernel
R3Q2n/1Npp4/b1KB1q2/2b1Bp1N/p1P1r3/Qq1Pqp1B/Nr4R1/n2q1k2 w - - 0 1 illegal: Other
1R3r2/1p2q1k1/1NQpRnp1/KB6/2pNQ2b/BpP2pqn/2b3Pr/3rNQ2 w - - 0 1 illegal: No proof kernel
2r3k1/1r4p1/b3p1Q1/p2R1rqB/4PBQ1/ppn1p3/NN3nP1/KrR1bRN1 w - - 0 1 illegal: No possible last move, all moves rejected
1r5b/2ppq1Qb/1Q6/2Qrppp1/n1p2PqR/pR3K2/B3P1nR/1NB1k2N w - - 0 1 illegal: No possible last move, all moves rejected
1N6/3pB3/P2r1Rq1/2Q1r3/nP2Brr1/1N2R2B/kBb2bBK/1q4bn w - - 0 1 illegal: No possible last move
1qkqQbbN/2n1pK1P/2p1N2q/1P1B2R1/b1n5/2Np2R1/8/3Bq1NN w - - 0 1 illegal: No possible last move
3N3N/rN1qp1N1/prPrn2B/3p3P/1pn2K2/pN6/k1r2R1R/2B4Q w - - 0 1 legal: proof: e4 b5 a4 bxa4 g4 h5 b4 hxg4 b5 f5 exf5 a6 Bh3 c6 Bf1 g6 b6 Bh6 Bb5 cxb5 Qe2 Bf4 Qf1 Nc6 Qe2 Bb8 Qd1 Ba7 bxa7 Nb8 c4 Bb7 c5 Bd5 d3 Bc4 dxc4 Qa5+ Kf1 Qb6 Ke1 Qd8 Ke2 Kf7 Ke3 d5 f4 g5 h4 a3 f6 Ke6 f7 b4 f8N+ Kf6 c6 g3 h5 g4 c5 g2 f5 Ke5 f6 g3 f7 Qc8 c7 Qd7 c8N Qc7 c6 Nd7 Ne2 g1R Nd6 g2 Nd2 Ngf6 Ng3 Ne8 Ra2 Nb6 Nb3 Qd7 Rh2 Nc7 Ngf5 Ne6 Ng7 Nc4+ Kf3 Rb8 a8N Rb6 Nb7 Re1 Rc2 g1R Rcf2 Re2 Nc7 Rg6 Qh1 Rgh6 Kg3 Rc2 Kf3 Nd8 Kg3 Rd6 Kf3 Ne6 Ng6+ Kf6 f8B Rg8 Nh8 Ke5 Nd2 Kd4 Nb3+ Kc3 Kg4 Re2 Kg3 Kc2 Kg4 Kb1 Kf3 Rc2 Kg4 Ng5+ Nce6 Ka2 Kg3 Nh7 Ned8 Ng5 Ne8 Ne6+ Kf3 Qc7 Bfh6 Qd7 Ng7 Rf8+ Ndf7 Rb8 Nfd8 Ra8 Kg4 Ra7 Kf3 Nc5 Kf4 Ne6+
kbr2R1R/2nNQ1K1/nRr1P3/2n5/bB3r1R/nN6/q2q1BP1/R1n4r w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 Ke2 Kd7 Kd3 c5 Ke4 f5+ Ke5 h5 d4 c4 d6 Kc6 d7 f3 e4 b4 Nh3 f4 Ng5 c3 Re1 f2 Rh1 f1N Kf5 b3 Kg6 c2 e5 b2 e6 h3 Rg1 h2 Nh3 h1Q Be3 c1N Ra5 h4 Ng5 h3 Nf3 h2 Rf5 Nd2 Re1 Ra6 Rh5 Nf6 Bf2 Bd6 Rh4 Ndb3 Kg7 Nd5 Nbd2 Nc5 Nb3 b1N Qd3 Bc7 Qh7 Na3 Rd1 Bd6 Re1 Nc7 d5+ Kb5 Ne5 f3 Rd1 Qf1 Re1 h1R Rd1 Qd3 Re1 Qe8 d8B Bd7 Be7 Qd2 Bf8 Bc6 Nd7 Qa2 Rd1 Qd8 Be7 Bh2 d6 Rf8 Re1 Rf4 Rd1 Ra8 Bf8 Nba6 b8R Rc4 Rb7 Rc8 Rb8 Bg3 b7 Bf4 Kg8 Rc2 Qe7 Rc3 Kg7 Be5+ Nf6 Kb6 d7 Ka7 Rf1 Ba4 Rd1 Qe8 d8R Qd7 Re8 Qd3 Rd8 Bh2 Nd7 Qdd2 Rf1 Nd3 Ra1 Nc1 Bd4 f2 Re8 f1R Bf2 Rd8 Rc8 Bd6 b8R Rc4 Rb6 Rf4 Rcb8 Rc8 Rb4 Rfg1 Rh8 Re1 R8b6 Ka8 Re4 Rf6 Reh4 Rf4 Qf6 Re5 Be7 Re3 Ref8 Rc3 Qg5 Ncb5 Qf6 Bb8 Bd6 Nbc7 Qe7 Nb7 Bb4 Rc6 R4h5 Nbc5 Rh3 Qe1 R3h4 Qed2
2n1q1B1/3P3R/1bq1NkbQ/1N1Rn3/3N3r/BNrq2Pr/K2b1Nb1/1q6 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Ke7 d4 h5 Kd2 c5 Kc2 f5 Kb3 h3 b6 f3 b7 c4+ Kb2 c3+ Kb3 h4 e5 f4 e6 f2 d6+ Kf6 d5 f3 d7 c2 e7 h2 d6 h3 g3 Nc6 b8N Rh4 Bb5 f1Q Ba4 f2 Bb2+ Ne5 Qd3 c1B Ba3 Bd2 Qa6 Qe8 d8N Qd3+ Ka2 f1B Nbc6 Bf5 d7 Bg2 Bb3 Rc8 Ne6 Bg6 Ncd4 Rc3 Qc6 Bfh6 Qd6 Bde3 Nd2 Bhg5 Bd5 Bh6 Rd1 b3+ Ka1 b2+ Ka2 Bf2 N2b3 Bd2 Qa6 Nh6 Qb6 Nf5 Bc4 Nd6 Qc6 Qh8 Bd5 Nc8 e8N+ Kf7 N8c7 Qe8 Ncb5 Kf6 Nf5 Bb6 Nfd4 Be3 Nge2 Bd2 N2f4 Qf3 Nd3 Qe2 Rhg1 h1Q Nf2 h2 Rge1 Qf3 Re4 Rh3 Rh4 Qd3 Rh7 Rh4 Ra1 Qc1 Rb1 Qcc2 Rd1 h1R Qd6 R1h3 Qf8+ Qf7 Qh6 Qc1 Nec7 Qe8 Bg8 Qcc2 Nce6 Qf3 Re1 Qc6 Re4 Qd3 Rg4 Qdf3 Rg5 Qd3 Rh5 Nc4 Rc5 Ne5 Rd5 b1Q#
BnR1NB1q/n1b1q3/2r3P1/1b1Q4/1B1Bbk1q/2BRbNnP/4K2q/6b1 w - - 0 1 illegal: No possible last move
R7/r7/Nq1PQ1b1/5Bq1/1Bn1Pr1B/q2kN1Rr/q1q3B1/B1n1rKn1 w - - 0 1 illegal: No possible last move, all moves rejected
NQ6/RbN2q1n/KbR1rN2/3P2N1/1k3B1B/p1b5/1b2nP1N/1r1qqb2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 g4 Kd6 d4 a5 b4 e5 b6 c5 g5 h5 b7 h3 b5 h4 b6 e3 Kd3 c4+ Kc3 h2 g6 h3 g7 a4 Kb4 e2 Kb5 e1B Be3 c3 Bg5 e4 Be2 e3 Na3 c2 Nf3 c1B Bh4 Ra6 Qb3 Nc6 b8B+ Qc7 b7 Nf6 g8N Nh7 Nf6 Bb2 Bc4 Ba5 Rhc1 h1B Nh2 e2 Bd3 e1Q Be4 Bg7 Nc4+ Ke7 Rc3 Bg2 Nb6 Kd6 Na8 Bf1+ Rc4 Bb6 Ra2 Ke7 d6+ Ke6 d7 Kd6 d8N a3 Ne6 Re8 Ng5 Re6 Bd5 Bc3 Rb2 Ra4 Rc2 Rb4+ Ka6 Rb5 Ra4 Bh8 Nhf3 h2 Ra5 h1Q Nh2 Qf3 Qb1 Qfd1 Rc1 Nd8 Bc6 Bg7 d5 Kc5 Qb2 Qf7 Bf4 Re5 Ra4 Ne6 Qb3 Nd4 Qb1 Be6 b8N Bc8+ Bb7 Ne2 Rc2 Rb3 Ra5+ Kb4 Rc1 Bd2 Rc6 Bc3 Ne8 Qdd2 Nec7 Bcd4 Qb2 Re6 Qb1 Bbc5 Nd7 Kc4 Qb2 Rb6+ Ka7 Qdd1 Qb1 Bge5 Nf6 Ba1 Qb2 Bc3 Ra6 Ba5 Qe5 B5c3 Nce8 Kb5 Ra5+ Kc4 Qb8 Rb1+ Ka6 Kb3 Kb5 Bb6 Ra7 Bab2 Ka6 Kb4 Nec7 Bxb7+
r1Bn1r2/1n5Q/PB1bR2N/bn2Bnn1/BqPR1NK1/4b2B/5kp1/7q w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 dxc5 axb4 Ba3 h6 Bc1 h5 f3 hxg4 Kf2 e5 Bg5 b6 Ne2 e3+ Kg1 e4 Kg2 Bb7 Ng1 e2 Bd2 e3 Bc1 Be4 fxe4 Ra4 Bb2 Ra5 Bc1 Ra8 Kg3 Ke7 h4 Ke6 c4 Ke5 a4 e1N h5 g5 c6 d5 c7 b3 c8B e2 h6 d4 h7 d3 a5 Kd4 a6 d2 e5 Ke3 e6 b5 e7 b2 e8B b4 Bed7 b3 Bc6 Ne7 Qc2 Qa5 Rh3 Nf5+ Kh2+ g3+ Kh1 g4 B8d7 Nf3 Kg2 e1B Rh4 Nd6 Be8 Nb7 Bd5 Bd6 Nh3 Nc6 Na3 b1N Nb5 b2 Nf4 Ng5 Nd4 Na3 Be6 b1Q Bc8 Ncd8 Ba4 Rf8 h8B Nb5 Be5 Qab4 Ra2 Qa1 Qh7 Qab1 Ba3 d1N Rd2 Qa1 Rh6 Qab1 Re6 Qe4+ Kg1 g2 Kh2 Qeb1 Rd3+ Kf2 Nf5 Ne3 Nh6 Nf5 Bab2 Bd2 Bbd4+ Be3 Bb6 g1B+ Kh1 g3 Bh3 Ke1 Kg2 Bgf2 Kh1 g2+ Kh2 Kf1 Rd2 Be1 Rd4 Kf2 Bg4 Ne4 Kh3 B1d2 Bgd1 Ng5+ Kg4 Nh4 Bdc2 Qh1 Bf5 Bc3 Kh5 Be1 Bh3 Nf5 Kg4 Qb1 Ba7 Ba5 Bb6 Qb4
1b2kN1K/qrPpq1R1/2r5/4B3/3NP3/7B/1qNrb1R1/bNbn1QnN w - - 0 1 legal: proof: b4 a5 g4 e5 a4 h5 f4 hxg4 d4 exf4 bxa5 b5 axb5 c5 Qd2 cxd4 Qd3 Rh4 Qd1 Rh8 Kd2 g5 Kd3 f5 c4 f3 e4 f2 h4 f4 h5 f3 a6 g3 b6 g4 c5 g2 h6 g3 b7 Nc6 b8N Ra7 h7 Nf6 Ra2 Ne5+ Kd2 d3 Ke3 d2 Kf4 Bd6 Kf5 Nfg4 c6 Qe7 Rh4 Rb7 Nh3 g1B a7 g2 Na6 Bb8 a8N Rg8 h8N Rg6 Qe2 d1R Bb2 Rd2 Nb4 Bh2 Bd4 g1B Rh7 Bf4 Nc2 Be3 Bg2 f1Q Nf2 Qc1 Qf1 Qb2 Nh1 f2 Rg7 Nf3 Bh3 Bgh2 Bf6 Ng1 Be5 Rgd6 Ng6 Bef4 c7 Rc6 Nd4 Bh6 Nf8 Bg5 Nde6 Ne3+ Kg6 Nd1 Kh7 Bhf4 Kg8 Bf6 Nd4 B4g5 Kh8 Bf4 Qc4 f1Q Nb6 Qf2 Nd5 Qe3 Qe2 Q3a3 Qg2 Qa7 Qf1 Qb5 Kg8 Re2 Nb4 Bc1 Nf5 Rbb6 Ba1 Ba6 Kh8 Rb7 Rd2 Qbb6 Nc2 Qb3 Be5 Qbb4 Bh2 Ba1 Be5 Qb2 Nfd4 Bc4 Rd3 Rg2 Rdg3 Rd2 Rg2 Be2
3Kn2n/Q1b2NR1/3nN1Rr/2b3P1/2b4r/1RnPR3/p2B1R1r/kr3B1q w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 e5 axb5 exf4 h4 gxh4 e3 fxe3 Ke2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 b3 f5 b6 a5 d3 h5 g5 c4 b7 e2 d6 e1B d7 a4 Ke6 f4 Nf3 h3 Nc3 h4 Ng1 a3 Qc2 h2 Be3 h3 Na4 f3 Ba7 a2 Qc1 f2 Bb6 c3 Ba7 c2 Rb1 Ne7 Bd4 Na6 Nb2 Ka3 b8R Ng6 b4 Rh4 b5 Nc7+ Kf7 Ra6 b6 Ne8 b7 Bc5 Qe3 c1N Na4 Ne2 Rb2 Nc3 Nf3 Re6 Rg1 h1R Rg3 h2 Ne5 Qb6 d8R Qc6 Rd6 Nh8+ Kf8 Reh6 Ke7 Be6 Nf7 Bc4 Kd8 Rg1 Rd2 h1R Rg6 R1h2 Be5 Kb3 Bf4 Qh1 Rc8 Ka3 Rc7 Kb3 b8R+ Ka3 Bh3 f1N Rf2 Nd2 Bf1 Nde4 Qd4 N4d6 Bd2 Qg2 Re3 Qh1 Rf5 Bg3 Rf2 Bb6 Nc5 Kb2 Ne6 Ka1 Rb7 Bc5 Rb3 Bf4 Bh3 Rb1 Bf1 Ne4 Re7 Bb8 Qd7 N4d6 Qa7 Nf5 Ne5 Nfd6 Reg7 R4h5 Nf7 R5h3 Re1 R3h4 Re3 Bc7+
1Rrrn1b1/PpQ2r1R/1BRr4/1KrR3R/r3N3/1PNn4/q1B5/kn5r w - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 h5 d5 cxd5 g6 Rh4 gxh5 Rh1 h4 d4 c5 b3 c4 Qc2 a4 Qb2 Bc5 dxc5 a3 Bd2 axb2 Be3 Ra4 Bc1 Ra8 Kd2 Kd7 Kc3 f5 Kb4 h5 g4 h3 e4 c3 a4 h2 e5 h4 a5 f3 g5 h3 g6 c2 g7 f4 a6 f2 a7 f3 d6 Kc6 e6 Kd5 e7 Kd4 e8Q Nf6 g8R Nc6+ Ka4 Nb4 c6 Nd3 c7 Be6 d7 Rc8 Qh5 Ne8 Be2 f1R Qf7 f2 Bh5 Rd1 Bf4 c1R Nc3 f1R Ne4 b1N Bg6 Rc4+ Kb5 Qh4 Ra6 Qf2 Rc6 Qa2 Rg7 Bd5 Qe7 Bg8 Rh7 Rd2 Bd6 Rf7 d8R Ra4 Bf5 Rc2 Rd7 Rcc4 Rh5 Rd8 c8R Rh6 Bc7+ Rd6 Rb8 Rc8 Ng5 Kc3 Ne4+ Kb2 Bb6 Ka1 Ne2 Rd8 Rd1 h1R N2c3 h2 Rd2 Rc1 Bg6 Ne5 Rd5 Nd3 Qe5 h1R Qh2 Rf8 Rdh7 Rcf1 Qg3 R1f7 Bf5 Rc7 Qg7 Rcc8 Qc7 Rf7 Nf2 Nb2 Bc2 Nd3 Nfe4 Rc5+
B1R5/1Qb1R3/b1q1RNq1/1br3P1/K1n1q1p1/2Rb2R1/P2b2b1/1k2rN1B w - - 0 1 illegal: No possible last move
q1nR1Nk1/3qnbq1/1B2Rn1p/3rKn1Q/1q2bN1R/5Pb1/3RP3/6BR w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nc3 cxd4 Nb1 e5 Bg2 g3 Bh3 e4 Bg4 g5 h4 a5 Be6 g4 Bc4 Ra6 Bd3 exd3 Nc3 Rg6 Nb1 Rg5 hxg5 Bb7 Nd2 Ba6 Nb1 Bc8 Kd2 Kf7 c4 d5 b4 h6 b6 g2 b7 a4 f3 a3 c5 g3 b5 a2 c6 Qd7 b6 Bd6 c7 Ne7 g6+ Kg8 g7 Nbc6 b8R Na7 Nh3 g1Q b7 g2 Ra8 Bg3 b8B Bb7 Bb2 Nac8 Na3 Qe1+ Kc1 g1Q Nc2 Qa5 Ra6 Qb4 Ba7 Rh7 Rb1 a1Q Re6 Qaa5 Bc5 Qa8 Nf4 Rh8 Ra1 d2+ Kb1 d3 Ra2 d4 Bb6 Be4 Rh4 Qg2 Qh1 d1B Kc1 Kh7 g8R d2+ Kb1 d3 Nd4 Ba4 Rd8 d1N Kc1 Nc3 Kd2 Bd1 Ke3 Bb3 Bc1 Rg8 Rd2 Rg5 Qh3 Ra5 Qg4 Rd5 Qh5 Bf5 Rh1 Ne4 Ba3 Nf6 Bb2 Nd6 c8R Be4 Rc4 Ndc8 Ba3 Qc3 Bac5 Qb4 Re5 Kg7 Nde6+ Kh7 Nf8+ Kg8 Re6 Ba2 Rdd1 d2 Rd4 Bh2 Rc4 Qg7 Rd4 Bg3 Rh4 Bc4 Rdh1 Re5 Rdd6 d1N+ Kd4 Ne3 Rd5 Rg5 Rdd6 N3f5+ Ke5 Bb3 Rd2 Ba2 Bg1 Bc4 Red6 Bf7 Re6 Bh2 Bge3 Rg1 Rb2 Rd1 Bg1 Bg3 Rc2 Rd3 Rd2 Rd5+
4r1q1/2N1P2r/Qn1p1RNn/q1Nn1n2/B2RP2N/1q4rq/2b4K/B1k2N2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 axb5 g5 e3 gxh4 Qh5 e5 Qg6 Bh6 e4 Be3 Qb6 d3 Qd4 exd4 fxe3 Qb6 Rh3 Qc7 Rh1 Qd8 Kf2 Ke7 g4 Kd6 Kg2 Kc5 b4+ Kc4 e5 a5 c3 Kb3 c4 Kc2 b6 h5 e6 f5 e7 a4 c5 a3 c6 f4 c7 f3+ Kh2 f2 b5 d6 b7 h3 b6 h4 g5 d2 g6 d1Q g7 a2 Bc4 d3 Bd5 d2 Bb2 Bf5 Bc6 Rh7 c8Q Nd7 b8N Qg4 b7 d1Q Ne2 Nb6 Rf1 Nh6 Nd7 Qg8 b8N Qd3 Bd4 Qdb3 Na6 Rb8 Qb7 Re8 Nd2 Be4 Rae1 a1Q Ndc5 Qa5 Ba4 Bg6 Ba1 Bd3 Kh1 h2 Nf4 Bg6 Rd1 Bd3 Rg1 f1N e4 Ne3 Nf1 Ned5 Rd2+ Kc1 Nc7 Bc2 Qa6 Rh8 Rg3 Rh7 Kg2 h1R Rd4 Rg1+ Kh2 h3 Rf3 Rg3 Ng6 Qh8 g8N Qg7 Nh4 Q7g5 Nf6 Qg8 Kh1 h2 Nfd7 Rh3 Rf6 Rc3 Ng3 Re3 Kg2 h1N Kh2 Rc3 Nf1 Ng3 Ne5 Ngf5 Neg6 Rf3 Nf4 Rg3 Nfg6 Qh3#
b2NQ1NB/1n2P3/1K6/1P2B1N1/1br1N1pk/2rR4/r4rr1/nNR1r1rr w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bg2 Qf6 Bh3 Qf5 gxf5 Nh6 Bg4 hxg4 Ra2 Ng8 Ra4 Rh3 Ra1 Rh8 Kf2 Ke7 b4 Kf6 h4 g5 c4 d5 e4 a5 h5 a4 h6 a3 b6 a2 b5 d3 b7 d2 h7 g3+ Kf1 f2 Ke2 f1R Kd3 f3 Kd4 f2 c5 g2 c6 g4 e5+ Kg5 e6 Na6 b8B Bb4 f6 Nc5 e7 Ra3 f7 Nb3+ Kd3 d4 Kc4 d3 f8N Nh6 c7 Re1 Rh3 f1R Nd7 Nf5 Bb2 Bb7 c8N Rf2 B8e5 Ba8 Nf6 Ra4 Re3 Kh4 Nh3 g1R Nd6 Rgg2 Ng5 Re8 Qc2 d1R h8N d2 Rd3 Rh1 Qc1 Rdg1 Ng8 d1R Nde4 Rde1 Nhf7 Rb8 Nd8 Rc8+ Bc7 Ra3 Bh8 Ra4 Qf4 Ra3 Qd6 Ra4 Qc6 Nd6+ Kd5 Nb7 Bce5 Ra3 Qe8 Rc7 Nbd2 Rc4 Rc1 a1R Nb1 R1a2 Nef6 Rd4+ Kc6 Na1 Kb6 Rc3 Nfe4 Rdc4
rBbN3Q/B1pRn3/K3B3/2P1n3/nB1n1P2/1Nb3r1/1bk3rb/1r4BR w - - 0 1 illegal: No possible last move
2b2K1R/bR1Q2P1/n1p1Nqbq/B5rN/P2b3R/1R3R2/b1q3b1/1Bk3q1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 h3 b5 Rh2 g5 Rh1 f4 Qc2 Nc6 Qd1 Nd4 h4 Nf5 gxf5 g4 Rh3 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Bc5 Rh6 Bd6 Rh1 Bf8 Kf2 Kd7 e4 Kc6 a4 Kc5 g6 Kd4 g7 h5 f6 c6 d3 g3+ Ke1 c3 f7 c2 Kd2 h4 e5 f2 e6 g2 e7 h3 e8R h2 Re2 b3 Re3 b4 Ba3 f3 Nh3 g1B Nc3 b2 Rb1 b3 Nf4 Bc5 f8R Nf6 Bb4 Nd5 Ne4 Qf6 Ba5 Nb4 Ng5 Na6 Nh5 Ba7 Bh3 f1B Bf5 f2 Ne6+ Kd5 d4 Kc4 d5 Bg2 d6 f1Q Rh3 Bgd4 d7 Qg1 d8R c1Q+ Ke2 Rh7 Rf7 Rh8 Rb7 Qc2+ Qd2 Rh6 Rh8 Rg6 Rf1 b1B Rff3 b2 Rfb3 Qc3 Rf3 Ba2 Bb1 Rg5 Qd1 Bdb6 Qd7 Bd4 Rf2 Bh3 Rf4 Qc2+ Kf3 Bf1 Rf5 Bh3 Kf4 Bg2 Bc3 Kd3 Bd2+ Ke2 Ba5 Qg6 Rf7 Kd1 Rff8 Kc1 Rf5 Be3+ Ke5 Bed4+ Kd6 Qh6 Ke7 Qf1 Rg1 h1Q Kf8 Qh4 Rh1 Qg1 Rff3 Qf4+ Ke8 Qff6 Rh4 Qcd1 Bc2 b1B Bg6 Qc2 Bh7 Qfg6+ Kf8 Qf6+ Qf7 Qc4 Bd3 Bc2 Bf5 Bd1 Bb1 Bc2 Rb2 Bg6 R2b3 Qe5 Qc7 Qc2 Qd7 Qf6+
K2BN1nN/1n2q1n1/B2PQn1R/r2B3B/rn6/1rRn3p/1k1Bq1P1/3r4 w - - 0 1 legal: proof: c4 a5 h4 g5 d4 gxh4 b4 axb4 e3 d5 Qe2 dxc4 Qd2 Bh6 Qd1 Bf8 d5 e5 Qc2 e4 Qd1 Bg7 f3 Bd4 exd4 e3 Bb2 Bf5 Bc1 Be4 fxe4 Ke7 Nh3 Kd7 Ng1 Ke8 Ke2 Kd7 Kf3 Kd6 a4 c5 a5 h5 a6 b5 a7 f5 Ra2 h3 Rc2 f4 Rh2 h4 Qe2 b3 Qd1 e2 Rb2 e1N+ Kf2 b4 Qd3 c3 Rd2 b2 Na3 b1R Be2 b3 Qc2 c4 Qb2 c2 Qa1 b2 Nf3 c3 Ba6 Nd3+ Ke2 Nc5 Ne5 f3+ Ke3 f2 Rd3 f1Q Bd2 c1N Qa2 c2 Ng6 Nb7 Rc3 Rh5 Nh8 Nd3 Qb3 c1N e5+ Ke7 Ke4 Na2 e6 Kd6 e7 Rd1 e8B b1R Rh1 h2 Qc4 Rf5 Bh5 Nd7 Qc8 Nab4 Nc4+ Ke7 d6+ Kf6 d5 Qe7+ Kd4 Qfe2 Qc6 Rb3 Qb6 Rc8 a8B Rc5 Qc6 Ra5 Qc8 Ra4 Qe8 N7e5 d7 Ng4 Nd6 Rg5 Kc4 Ke5 Kb5 Kd4 Kb6 N4f6 Ka7 Re5 d8B h3 Rf1 h1N Qf7 Ng3 Qe6 Qf8 Ne8 Nf5 d6 Ng7 Rf3 Rea5 Rf4+ Ne4 Rf6 Qe7 Rh6 Nef6 Kb8 Nbc5 Bd5 Nb7 Ka8 Ndc5 Re3 Ncd3 Bc1 Kc3 Bd2+ Kb2 Rg3 Ne1 Rc3 Ned3
1b2B2k/2bP1Bb1/2r1rb2/2Rrq2P/5pN1/qB1Q1K1R/BrN2bbB/8 w - - 0 1 illegal: No proof kernel
6B1/1PP1q1QN/2N2r1n/1q2r3/nN2r1R1/B1n1N3/R1nk1p1r/N3nK1n w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 a5 e5 g3 exf4 a6 f3 Kd2 f2 Ra4 bxa6 Ra3 a5 Ra1 a4 Ra3 g5 Bg2 f4 Bf1 Bd6 Ra1 Bb7 Qe1 Bf3 Qd1 Bg4 h3 f3 Nc3 Bf4+ gxf4 Bf5 Nb1 g4 Na3 g3 Nb1 Bg4 hxg4 Qc7 Nh3 Qb6 Ng1 Qd8 c4 Ke7 e4 Kf6 b4 d5 f5 Kg5 b5 Kf4 g5 h5 b6 a5 f6 g2 g6 h4 e5 a3 b7 h3 e6 d3 g7 a4 f7 h2 f8N d4 e7 a2 e8N a3 c5 Nd7 c6 Nc5 c7 Ra4 Nc3 Nh6 g8N Qe7 Rb1 a1Q Nef6 a2 Rb6 Qb2+ Qc2 a1N N8h7 Qb5 Qb2 Nc2 Nd1 Rc4 Qc3 Na4 Ba3 Rb4 Be2 f1R Ra6 f2 Qa1 Re1 Nf3 g1N Ne3 Rc4 Ra7 Rc5 Bf1 Re5 Nfd5+ Ke4 Nb4 Re2+ Kd1 d2 Ne1 Nf3 Rg1 h1N Bh3 Kf4 Be6 Ke4 Ned3 Nfe1 Nc1 Kf3 Nb3 Kf4 Nf5 R2e4 Ne3 Kf3 Bc4 Kf4 Ke2 d1N Kf1 d3 Qb2 d2 Na1 Ndc3 Rg4+ Kf3 Ra8 d1R Ra6 Rd6 Ra8 Qg7 Ne7 Rf6 Nec6 Qe7 Rd8 Rg8 Rd2 Rgg5 Re2 Rh5 Bg8 Rh2 Qa2 Ref4 Qf7 Ke4 Nbd5 Kd3 Qg7 Nb4 Rc2 Rfe4 Ra2 Nbc2 Ndb4+ Kd2+
qbn1q2N/N2PRBN1/b1n1r3/4Qp2/p1R4P/N1K1B3/6k1/1bN1r1nr w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 d4 Kd7 Kd2 Kd6 e4 a5 h3 f5 b6 g5 b7 a4 Na3 b3 Qe1 b2 Ne2 b1B Kc3 g3 Be3 f3 Nc1 g4 Bc4 Nc6 b8N g2 h4 g1Q Rh2 g3 Rc2 g2 Raa2 f2 e5+ Ke7 e6 Kd6 e7 f1R Rab2 Rh6 Rb7 Qh1 Rc7 g1N Re2 Na5 Nc6 Re6 Na7 Qe8 Ba2 Qe4 Rc4 Nc6 Bb3 Ba6 Qg3+ Kd7 d6 Rd8 d5 Re1 Qe5 Bg7 Qd4 Be5 Ba2 Bf4 Qe5 Rb8 Bb3 Rb7 Ba2 Qa8 e8N Nge7 Ng7 Nc8 Kd2 Rb2+ Kc3 Rd2 Bb3 Rdd1 Ba2 Qg2 Bb3 Qg6 Ba2 Qe8 Bb3 Kd8 d7 Ke7 d6+ Kf7 d8N+ Kg6 d7 Bg3 Qd5 Bb8 Nf7 Kf6 Qe4 Kg6 Nh8+ Kf6 Qh1 Ke5 Qh2+ Kd5 Rc5+ Ke4 Qe5+ Kf3 Ba2 Red6 Bf7 Re6 Rc4 Rf1 Rd2 Rde1 Rd5 Kg2 Rd6 Rg6 Re6 Rh6 Re7 Re6 Qc5 Rf3 Qd4 Rh3 Qe5 Rh1
3q3n/N5rP/B1RPBQ1B/r2Rp3/1B2bB1b/q2p3K/k2N4/2nqq1b1 w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 f5 exf5 h5 d4 d6 c4 Nc6 b4 Nb8 g4 hxg4 d5 Kf7 Qd4 Ke8 Ra2 Be6 Rc2 cxd4 c5 Bd7 c6 Bc8 Rc5 dxc5 h4 Kf7 f4 e5 Kf2 a5 Kg2 g5 b6 g3 h5 c4 d6 a4 h6 a3 c7 c3 b7 a2 h7 a1Q f6 Ke6 b5 Kd5 f5 g4 b6 c2 f7 Qa3 f6 Ne7 Ne2 Kc4 Nec3+ Kb3 Nb5 Nbc6 b8B Ng6 b7 Be7 f8Q Nb4 f7 Ra5 Ba7 Nd3 b8R Bh4 Bc5 Rg8 Nd2+ Ka2 Rb6 Bb7+ Rc6 Nh8 c8B Rg7 Bb4 Ba8 Na7 Bb7 Bb2 Nc1 Ba6 Ba8 Rf1 d3 Rf4 Bb7 Rd4 Ba8 Rd5 Bb7 Kh1 g2+ Kh2 g3+ Kh3 g1Q Be6 g2 Qe7 Qf1 f8B Qd1 Qf6 g1B B2c3 Ne2 Bd4 c1Q Be3 Qcc3 Bf4 Nc1 Nf1 Qce1 Nd2 Rc7 B8h6 Rg7 Rc4 Bc6 Rc3 Be8 Rc7 Bg6 Rc6 Be4
3Rn1n1/1B3R1r/K5b1/p2QPqbR/2n3p1/2B3nR/k1r2PRN/5bbN w - - 0 1 legal: proof: g4 d5 d4 e5 a4 h5 e4 b5 axb5 hxg4 c4 f6 Qc2 f5 cxd5 exd4 e5 Ne7 Qd3 Ng8 Qe4 fxe4 Ke2 Ke7 h4 g5 b4 a5 d6+ Ke6 h5 Kd5 h6 Kc4 b6 Kb3 h7 c5 d7 g3 b7 g2 b5 e3 Kd3 c4+ Ke4 e2 Kd5 e1N b6 d3 Nf3 g1B Be3 d2 Rh3 d1B Bg2 g4 Bd4 c3 Nh2 Na6 Kc6 Nc7 b8Q Bh6 b7 Nc2 Kb6 Qg5 d8R Ne8 Qd6 Na3 b8R Be2 Rb7 Bf1 Rf7 Bf5 Bb7 Bg6 Qd5+ Nc4+ Kb5 Rb8 Ka6 Qf5 Nd2+ Kb2 Ra3 Bg5 Ne4 Rc8 Ng3 Kb1 Rb3+ Ka2 Nh1 c2 Rbg3 c1N Rg2 Ne2 Bc3 Ng3 Rh5 Rb8 Ba8 Rb2 Bb7 Rc2 Rh3 Ngf6 Rh5 Rg8 h8R Rg7 Rh3 Ng8 R8h5 Rh7
n2r2b1/K1PkBP2/N1q2n2/3b1rRn/Nb1b3N/p1N5/1n1p1Q1B/N2R4 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Kf2 e5 h4 a5 c4 d5 b4 f3 b6 e4 c5 a4 f6 d3 Ke3 a3 Kd4 d2 b5 g3 c6 f2 b7 f1B f7+ Ke7 Kc5 e3 b6 g2 g6 e2 g7 e1B h5 d4 h6 d3 h7 Be2 Nf3 g1N Rh5 Bg3 Ne1 Ra6 Rg5 Bh3 Qc2 d1N Nc3 Be5 Na4 Bf3 Qf2 Nf6 Nc2 Qc7 g8N+ Kd8+ Ne7 d2 Bb2 Ne2 Bc3 Bh1 Bb4 Nb2 Rd1 Bf5 Na1 Bd4+ Kb5 Bhe4 Nd5 Nf4 Ndc3 Nbd7 b8B N4h5 b7 Bd5 Bd6 Rg8 h8N Bh7 Ng6 Nb6 Nh4 Na8 Bb4 Qc8 Bh2 Qe6 c7+ Kd7 Be7 Ra5+ Kb4 Qc6 b8N+ Ke6 Na6 Kd7 Rg6 Rh8 Rg3 Bg8 Rg5 Bc4 Nb1 Rf5 Nbc3 Bd5 Ka5 Qe6 Nb4 Qe4 Ka6 Qc2 Bc5 Qe4 Ka7 Qe6 Na6 Qc6 Bb6 Bb4 Bc5 Bh7 Be5 Rd8 Bh2 Be5 Bd6 Bg8 Be7 Bd4+
2k1N1Rn/5Q2/3PpKPR/rqBr3r/6bR/b2r1r2/R2p1R2/qq4NB w - - 0 1 illegal: No possible last move
1K1Q2q1/P4Rb1/1n1BBBp1/3bR3/2B1qr2/1bP2rk1/BNN3pr/3b1b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 e5 fxe5 axb4 Bg5 c5 Be7 cxd4 Bd6 Qf6 Bxb8 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 h4 b5 a4 d5 e4 g6 c3 b3 h5 g3 h6 b4 a5 g2 a6 b2 a7 d3 h7 b3 Rh5 d2 Nf3 d4 Bd6 d3 Na3 b1R Nc4 b2 Ne1 Bg7 Nc2 Ne7 Ra6 Rf8 h8B Bb7 Ra5 Qe8 Rh7 Bd5 Be2 Ra1 Rb5 b1Q Nb2 Nc8 Rc5 Bf6 Rf7 Ra4 Ra5 Nb6 Rb5 Be7 Bf6 Rh8 Ra5 Rh2 Rb5 Qg8 Bf1 Kd7 e6+ Kc6 Ke5 f4 Be2 Bf8 e7 f3 Ra5 Rd8 e8B+ Rd7 Rb5 f2 Bg4 f1B Be6 Bg7 Ra5 Kb7 Rc5 Rc7 Bb5 Re7 Bc4 Rb4 Qc1 d1B Qg5 d2 Rb5 Kc6 Qh4 Rb7 Qh8 Qh7 Qd8 Qg8 Ba2 Bf3 Ra5 Bb3 Bc4 d1B Ke6 Nd7 e5 Bd5+ Ke7 Rb8 e6 Nb6 Rb5 Be4 Re5 Bd5 Qf8 Rb7+ Kd8 Rc7 e7 Rb7 Ba6 Rf4 Bc4 Rc7 Ne3 Qe4 Nc2 Na4 e8B+ Rd7+ Kc8 Nb6+ Kb8 Rf3 Bg5 Rf4 Rff5 Rf3 Bf7 Rc7 Be6 Rf7 Bh4 Rf6 Rh5 R6f4 Qd8 Bde2 Bde7 Bd1 Bef6 Kc5 Bg3 Kc6 Rh7 Kc5 Qe8 Kd6 Qd8+ Nd7+ Kc8 Rf5 Bf4 Bh8 Rf7 Bg7 Bg3 Qd4 Re3+ Qf4 Qe8 Nb6+ Kb8 Qe5 Re2 Qf4 Bgh4 Qe3 Be7+ Ke5 Bhf6+ Kf4 Qd8 Kg3 Bd6+ R5f4 Re1 Qd4 Re5 Qe4
8/N1N2RN1/1p3p1r/1NR5/rrQq2k1/PB1Brqn1/1bbP2K1/1qb1N3 w - - 0 1 legal: proof: f4 d5 g4 a5 b4 axb4 c4 f6 cxd5 h6 g5 Kd7 g6 Nc6 Bb2 Ne5 Bd4 Nf7 gxf7 e5 Bf2 exf4 Bh4 Rh7 Bg5 hxg5 Nh3 Rh4 Ng1 Rh8 Kf2 c5 e4 g4 h4 g5 e5 b3 h5 b2 h6 f3 h7 b6 d6 Ke6 d7 Kf5 e6 c4 e7 c3 e8B c2 Qe1 c1B Nc3 b1R Nb5 Ne7 Na7 Rb4 Qe2 Bb7 Rh2 Be4 Rh5 Bc2 Qc4 Bb2 Kg3 f2 Kg2 g3 Nf3 Bc1 Be2 f1R Ne1 Rf3 Bf1 Re3 Be2 Qc8 d8N Qb7+ Bc6 Bb2 Ne6 Bc1 Nc7 Bb2 Nab5 Raa4 Na7 Qa8 Bf1 Qb7 Be4+ Kg4 Bd3 Nf5 Rc1 Bc5 f8N Bcd4 Ra1 Bc1 Nfe6 Bdb2 Ng7 Qd5 a3 Qd4 Bd5 Qe4+ Kg1 g2 Ra2 Ng3 Rh1 Rf8 h8N Qd4 Nf7 Rh8 Nd6 Rh6 Ndb5 Qe4 Qc5 Qf3 Rh5 Kf4 Kh2 g1Q+ Kh3 Qgf2 Bb3 Qf1+ Kh2 g4 Rh4 Qd5 Qc4+ Qd4 Ra1 Qf3 Kg1 Nh1 Rh5 g3 Re5 g2 Re7 Ng3 Rf7 Kg4 Rb1 Bc3 Rb2 Bb1 Rc2 B3b2 Rc3 Bc2 Qc6 Qff4 Rc5 Qf5 Qd5 Qf3 Qc4 Kh4 Nf5+ Kh5 Kh2 g1Q+ Kh3 Qgf1+ Ng2 Qe1 Kh2 Qed1 Ne1 Kg4+ Kg1 Bb1 Qe6 Qc2 Qc4 Ba1 Ng7 Qb2 Rh5 Bc2 Re5 Qb1 Rc5 Qc6 Kf2 Bab2 Kg1 Qce4 Kf2 Qf5+ Kg2 Qf3+
3Q2NB/3NNNpq/nN4q1/Rn1qbPbr/1R6/1B1k4/bn1p1P2/1b4K1 w - - 0 1 legal: proof: g4 h5 a4 hxg4 e4 c5 d4 cxd4 Bg5 b5 Bd2 f6 Bf4 a5 axb5 Ra6 Be5 fxe5 Na3 Rf6 Nb1 Rf5 exf5 Rh4 Bg2 Rh6 Bf1 Rh8 b4 Kf7 c4 Kf6 h4 d5 b6 e4 b5 Ke5 c5 a4 h5 d3 c6 Kd4 c7 e5 h6 a3 b7 e3 b6 g3 h7 a2 Be2 e4 Kf1 g2+ Ke1 Nh6 Rh4 Be6 c8N Nf7 Rh2 Nd6 Qd2 Na6 b8N Be7 b7 Nb5 Bd1 e2 Qc2 Bg5 Qb2+ Kc4 Nc3 d4 Rh6 Qd5 Rb1 a1B Nf3 Bg8 Rh1 Be6 Rf1 g1Q Nc6 Qh1 b8N Qh6 Qd2 Qg6 Qe3 Bg8 N6e7 Bf7 Kd2 e1N Na4 Bg8 Qf4 Bf7 Bc2 e3+ Kd1 d2 Ke2 Nd3 Qd6 Bc3 Ng8 Nb2 Qd8 Be6 Rfc1 d1B+ Kf1 d3 Kg1 d2 Nce7 e2 Bb3+ Kd3 Nd7 Be5 Nab6 Bc2 Ra1 Bb1 Ra5 Bf7 Rc4 Be6 Rb4 e1Q+ Kg2 Qee4 Kg1 Qe3 Nh2 Qh3 Ng4 Qd4 N4h6 Bd5 Bd1 Bda2 Bb3 Qd5 Ngf6 Rf8 Nfg8 Rf6 h8B Qhh5 Nf7 Qhh7 Qc7 Rc6 Qd6 Rc4 Qb8 Rh4 Qd8 Rh5
3nQn1N/1K2bnN1/8/R1PB1bR1/P3qpb1/1Nk2rNp/p1b4B/6rN w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 d5 gxh4 d6 cxd6 Qd3 d5 Qd1 d4 a4 b5 axb5 a6 b3 a5 Na3 a4 Nb1 a3 Qd3 Qa5+ Qd2 Qa4 bxa4 Ra6 Qd1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 f3 e4 d6 g4 f2 c4 d3 b6 a2 b7 h3 Nd2 h2 Nb3 d2 Qe1 d1B Nh3 h4 Bg2 f1N Nf2 Nc6 b8N Nd2 Na6 Bc2 Nac5 Nf3 Bf4 Nfe5 Rd1 h3 Rg1 h1Q Bh2 Bf5 g5+ Kg7 g6 Kf6 g7 Nd7 Bf3 Nd8 Rg5 Nh6 Rd4 Qg2 Nh1 Be7 Qe3 Nf8 Qe2 Nb7 Kc6 Rg8 Rd5 Nd8+ Kc7 Ra5 Re5 d5 Qe3 Nde6+ Kb7 d4 Qe2 d3 Qe1 d2 Rd5 Bd8 e5+ Ke7 Qe3 d1B Ne4 f6 Neg3 Nf7 Be4 Bdg4 Rb5 Kd7 Bd5 Be7 c5 Ra8 Ra5 Ned8+ Kb6 Qe4 e6+ Kc8 Qe1 Rb8+ Ka7 Kc7 Qe2 Rb4 Qb5 Rc4 Qe8 Rc3 Ka8 Rf3 Ka7 Rh8 g8N Rh7 Nh6 Rg7 Ra6 Bh7 Ka8 f5 Ra5 f4 Ka7 Nd6 Nf7 Bhf5 Nh8 N6f7 Qb5 Bf6 e7 Rg6 Qb4 Kd7 e8N Be7 Qb8 Rg8 Bc6+ Ke6 Ng7+ Kf6 Qc8 Ke5 Ba8 Bd1 Bd5 Bc2 Na1 Kd4 Nb3+ Kc3 Qd7 Rf1 Qe8 Rg1 Ne6 Rg6 Ng7 Rb6 Ka8 Rb4 Ka7 Rd4 Ka6 Rd3 Kb6 Rf3 Kc7 Nde6+ Kb7 Ned8+
1r1b4/K1p1qR1b/R2NQpn1/4P1pr/2B3bk/nBNN1P2/3N4/N3rr2 w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 e6 cxd5 e5 d4 exd4 g4 Bf5 g5 Bd7 h4 Bh3 h5 Bf5 h6 gxh6 g6 Bc8 Bg5 hxg5 Kd2 Ke7 Kd3 Kf6 Kc4 a5 e4 h5 b4 h4 f3 d3 g7 a4 d6 d2 d7 a3 b6 a2 Kb5 h3 e5+ Kg6 b7 Kh5 Ne2 f6 Nec3 h2 Bc4 Nh6 g8B Kh4 Qb3 d1R Nd2 Na6 b8N Qe8 Nc6 Rg1 d8N Rb8+ Nb7 Qe7 Nd4 Nf5 Nc2 Rh5 Kc6 Rb1 b5 Re1 b6 Nb4+ Kb5 Be6 Nd6 Bf7 b7 Bg6 Bgf7 Bh7 Ka5 Kg3 Kb5 Nh4 Bg8 Ng6 Bge6 Nd3 Ka6 Kh4 Ka7 Nb2 Qb6 Rf1 Bb3 Nc4 Qc6 Na3 Bec4 Rd8 b8N Re8 Nd7 Rb8 Nc5 Re1 Rb1 a1R Nd3 Rf1 Rd1 Rb1 Rg1 h1B Na1 Bg2 Qd5 Re1 Qe6 Bh3 Rh1 Rf1 Rc1 Re1 Rc2 Rf1 Ra2 Rbe1 Rh2 Qg7 Rh1 Be7 Rh2 Bd8 Rh1 Nc2 Ra6 Qe7 Ncb1 Rh6 Nb2 Kh5 Qc8 Bg8 Qe6 Na3 Nd3 Rh7 Rh2 Rh6 Nc3 Rh8 Rf2 Bg4 Rg2 Kh4 Re2 Kg3 Rf2 Rhh1 Re2 Kh3 Rh2+ Kg3 Rh8 Rh5 Rh7 Kh4 Rf7 Bh7
RN6/N3N3/4K2q/p2n1P1P/1n1k2q1/1RnN3p/1pBb1brr/3QNnB1 w - - 0 1 illegal: No proof kernel
R1K3NR/2N3QP/1k1qbr1r/4n3/B2b1p2/r1P1pp1q/2n3R1/B1r2R1R w - - 0 1 legal: proof: e4 h5 g4 b5 f3 c6 d4 b4 gxh5 b3 d5 cxd5 axb3 dxe4 b4 exf3 b5 Rh7 Na3 Rh6 Nb1 Rh8 Kd2 e5 Kd3 a5 Kc4 g5 Kd5 f5 h4 f4 b4 e4 h6 g4 c3 a4 h7 g3 h5 e3 b6 g2 b7 a3 h6 d6 b5 Kd7 b6 a2 Bb2 Ra3 Ne2 g1Q Qd4 Qg3 Nd2 Qh3 Ne4 Nc6 b8R Bg7 b7 Kc7 Ra8 Bg4 Rc1 a1R b8R Ra6 Rb6 R1a3 Ba1 Qf8 Qe5 Nd4 Nf6 Nc2 Rb2 Bc8 Ra2 Kb6 Nd4 Qd8 Nb5 Be6+ Ke4 Qf8 Nc7 Qd8 Qg5 d5+ Ke5 d4 Bb5 d3 Rcf1 d2 Ba4 d1R Qg3 Rc1 Qg5 Qb8 Kd6 Ne1 Rg2 Nc2 Ne4 Bd4 Qg7 Nf6 Ke7 Nd7 Nf6 Rg8 h8R Rf8 Ng8 Rf6 h7 Rh6 Ne8 Qd6+ Kd8 Ra5 Kc8 Rf5 Nc7 Rf7 Rg3 Rff6 Rg2 Ne5+
1b5N/BP2N1R1/qr2Kp1R/2B1R3/3bR3/1qq1pRPQ/1qnpr3/4kn2 w - - 0 1 illegal: No possible last move
4B3/1k1q1n2/6Br/1bRPQKR1/npR1R1N1/rq1P1Rpn/1p6/2N2q1r w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qb3 f3 Qc2 Qf6 Qd1 Qd8 Nh3 f5 Ng1 h6 Bb2 f4 Bf6 Bd6 Bg5 hxg5 Qc1 f2+ Kd1 f3 Qc2 Ra4 Kc1 Ra8 Qd1 Bf4 gxf4 Bf5 Nh3 Bd7 Ng1 Bc8 Kc2 Kd7 Kd3 c5 Ke4 Kc7 a4 b5 h4 g6 h5 g4 f5 g5 f6 g3 h6 c4 h7 g4 a5 c3 a6 b3 a7 c2 f7 c1Q f8R g2 Rh4 g3 Na3 b2 Qe1 b4 Nc4 Nd7 Ne3 Qd1 Rc1+ Kb7 Rc5 Nb6 Ng4 Nd7 Kf5 Qb6 e4 Qc6 e5 Qb1+ Bd3 f1Q e6 f2 e7 Qa2 e8B Qb3 Ne2 g1N Nc1 Nh3 Qe5 Qd6 Rf6 Nb6+ Re6 Bd7 Be4 Bc8 d3 Na4 Rh5 Qe7 Rg5 Bd7 Rc4 Bb5 Rf6 Rd8 a8R Qd7+ Re6 Rc8 Rc5 Rc6 Rc8 Ra6 Rc4 Ra8 R8c5 Nh6+ Kg6 Rf8 h8R Nf7 Kf5 Ra6 Rh6 Rh8 Rf6 Ra7 Kg6 Ra8 Rf3 Rh6+ Kf5 Nb6 Na2 Ra3 Nc1 Na4 Qh8 Rh4 Kf6 Rh6+ Bg6 Qe2 Kf5 f1R Qc3 Rh1 Qd4 Qc6 Re4 Qf1 Qe5 Qd7+
r1R2N2/pnbNb1bK/RB1b2r1/6P1/Q1Pp3p/1N1r1bN1/q5B1/1k1N4 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 h4 b5 axb5 fxe4 Be3 g5 Qd2 g4 Qd1 Na6 Bh6 Nc5 Bc1 Ne6 g3 Ng5 hxg5 Qc7 Qd2 Qxg3 Qd1 Qg2 Kd2 Kf7 c4 Ke6 b4 Kf5 b6 e5 b7 d5 b8N h5 b5 h4 b6 g3 b7 e3+ Kd3 e2 f4 e1B Bd2 e4+ Kc2 d3+ Kc3 e3 Kd4 e2 Ra2 Nh6 Be3 d2 Bf2 Bd6 Nc3 Nf7 Ra6 Rg8 Qa4 Nd8 Nd1 Rg6 Nc6 Be7 b8N Nb7 Be3 Qf2 Kd3 g2 Bb6 Bd7 Na5 Bc6 Nd7 d4 Qb3 Bf3 Qa4 Bf8 Nb3 Bg7 Nh3 g1B Bg2 Bh2 Rf1 Bg3 Ng1 Bh2 Kc2 Ke4 f5 Bhe5 f6 Bd6 f7 Bc7 f8N Bd6 Bh1 Qh2 Bg2 Beg3 Rf2 e1B Ne2 Be7 Rf1 Bgd6 Rf2 Bc7 Rf1 Beg3 Rf2 Bgd6 Ng3+ Kf4 Re2 Bed8 Re8 B8e7 Nc3 Ke3 Rc8 Kf2 Kd3 Ke1 Bh3 Qf2 Bg2 d1R+ Nd2 Ra1 Nb3 Ra3 Nd1 Qb2 Nf1 Qa2 Ng3 Bg4 Ke4 Be2 Kf5 Bf3 Nc1 Kd2 Nb3+ Kc2 Bf1 Re6 Bh3 Kb1 Bg2 Bef6 Kg6 Bfe7+ Kh7 Rg6 Na5 Rc3 Nb3 Rd3
1K5N/5RB1/PB2qpp1/nP1B4/2b1br2/R1q3k1/rBp1Bb2/N2b1Q1b w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 a5 gxh5 axb4 Nf3 b5 Ba3 d5 Qa4 b3 Ng1 Nc6 Qa6 b4 Bc1 Nd4 Qc6+ Bd7 Qc5 Nb5 cxb5 Bc8 Qc4 dxc4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 a4 g6 d4 f6 h4 b2 d5 b3 a5 f3 a6 c3 h6 c4 h5 c2 h7 f2 h6 c3 Ra3 Qa5 Nf3 Qd8 Ne5 Ne7 Nf7+ Kd7 d6 Ke6 d7 Qe8 d8B Rb8 Nd2 b1B Bb2 Nc6 Bb6 Bc5 e3 Ra8 Be2 Bb7 Re1 f1B Rc1 Rg8 h8Q Rd8 h7 Rd5 Rd1 Rf5 Re1 Rg7 Qg8 Qc8 h8B Rh7 Bg7 Rh2 Nh8+ Kd6 Qc4 c1Q+ Qd3+ Bd4 Rd1 Bc2 Re1 Bd1 Qb1 Rff2 Qa1 Ke7 Kd5 Rf4 e4 Bf2 e5 Rg2 e6 Qe8 Be3 Na5+ Kc5 Qf7 Kb6 Kd6 Ka7 Ke5 e7 Qe6 e8B Rh2 Kb8 Bh1 Bc6 Qc2 Bg4 Bc4 Be2 Qd3 Bb6 Qd4 Bc1 b2 Bd5 b1B Nb3 Bbe4 Bb2 Kf5 Qc1 Kg5 Qa1 Kh4 Qb1 Qe3 Na1 Kg3 Qc1 c2 Qb1 Qc3 Qc1 Rhh4 Qb1 Bhf3 Rh1 Rhg4 Rh7 Bh1 Qc1 Ba2 Rb3 Rf3 Ba8 Bf5 Bh6 Ra4 Bd5 Rff4 Rf7 Bfe4 Bg7 Ra3 Bf3 Be2 Qf1 Bd1 Be2 Ra4 Rb4 Bc4 Rb3 Ra2 Ra3 Bf5 Nb3 Bfd3 Na1 Bde4
Qqn2R2/R1B5/N1n4R/1q2bK2/RR2p1Pp/n2p4/q1b1r1P1/3n1BkN w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 f4 gxf4 h3 a5 Ra3 Ra6 Ra4 Rg6 Ra1 Rg4 hxg4 Ba6 Nc3 Bb7 Nb1 Bc8 Kd2 Kf7 b4 Ke6 c4 Ke5 b6 d5 b5 h5 c5 d3 c6 Kd4 c7 e5 b7 a4 b6 h4 Nh3 a3 Qe2 f3 Ng1 a2 Qe1 e3+ Kd1 d2 Kc2 d1N Nd2 e2 Nh3 Ke3 Nf2 Nc6 b8R d4 b7 Bd6 Ra8 Qe8 b8R Nge7 Rb4 Be6 Rba4 Qb8 c8R Re8 R8a6 Bg8 Ba3 Bh7+ Nde4 Bc7 Rd8 Nc8 Qa5 e1Q Qd5 Qa5 Bd6 Qab5 Rb1 a1Q Rbb4 Re7 Rf8 Qa2+ Kc1 Re6 Nc5 Bc2 Rb6 d3 Na6 Re8 Rg1 Re7 Nh1 f2 Qg8 e4 Bg3 Be5 Bh2 Rc7 Qd5 Nd8 Qa8 Rf7 Rh6 Nc6 Be2 f1N Bg3 Ba1 Bc7 Nd2 Re1 Be5 Bf1+ Kf4 Re2 Nc4 Re1 Na3 Kd2 Nc3 Ra1 Nd1 Nf2 Kg3 Nh1+ Kh2 Rfh8 Qb3 Rf8 Kg1 Ra2 Nb2 Ke3 Rf2 Ra1 Bg7 Ra2 Re2+ Kf4 Be5+ Kf5 Nd1 Nc5 Bd6 Ra7 Be5 Na6 Nc4 Ra3 Qa2 Raa4 Na3
2R1qn2/P3pp1Q/4q1b1/1K1R2rr/PR2R1N1/RB1p2N1/B3rrk1/3n3q w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 a5 bxa5 g5 e3 gxf4 Nf3 d5 Kf2 d3 Ng1 d2 Ke2 d4 g4 h6 g5 d3+ Kf2 Na6 g6 Nb8 Bb2 Bg7 Bf6 Na6 Bh4 Nb8 Bg5 Bd4 exd4 hxg5 a4 Kd7 h4 Kc6 c4 b5 a6 b4 c5 Kd5 h5 Ke4 g7 f3 h6 b3 h7 g4 d5 b2 c6 Bd7 d6 Bf5 c7 Ra7 c8B Qd7 Bg2 Kf4 Ra3 Rc7 a7 Nh6 g8R Rc4 Rh4 Qe8 d7 Rc1 d8R Bg6 Be6 Rc2 Ba2 Nf5 Rd5 Ne3 Nc3 b1Q Ne4 Nd7 Ng3 Qb6 Qa1 Qe6 Qg7 Qc8 Rd8 Nf8 Bh1 Qcc6 Rb8 Qe8 Rb1 Rb2 Re1 d1R+ Re2 Rg8 h8R Re1 Qh7 Rb5 Rd6 Rh5 Rd5 Be4 Rb2 Rgg5 Rb1 Bg6 Rb4+ Nc4 Rg8 Re4 Rh8 Ne3 Ke1 f2+ Kd2 f1Q Nf3 Nd1 Nh2 Rf5 Bf3 Qh1 Be2 Nb2 Kc3 Nd1+ Kb3 Ke3 Bf3 Kf2 Bg2 Re2 Kc4 Kg1 Be4 Rff2 Bf5 Qa8 Kb5 Kg2 Bb3 Nd7 Rc8 Nf8 Ngf1 g3 Ng4 Kf3 Ba2 g2 Ng3 g1R Bb3 Qe5 Be6 Kg2 Rdc5 Qe3 Bec4 Qe6 Rd5 Rff5 Ba2 Rfg5 Bcb3 Rf1 Ne5 Rff2 Rhe4 Re1 Ng4 Ree2 Rc3 Qd8 Rc8 Qe8+
Rrq1BB1R/4qn2/8/2PQ3N/1bnq1pq1/7n/BKPkBpp1/1BnN4 w - - 0 1 illegal: No possible last move
4K1bR/4Qrqp/2N1br1p/p2b1k2/P3nr2/R1PpB3/2N4N/N1BN3b w - - 0 1 illegal: No proof kernel
3Bk3/2rNrqb1/R3rn2/1q2r2r/N1QnP3/P3r2R/B1r1R1R1/1K1bnR2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 b5 g4 c5 d4 h5 Kd2 f5 Kc2 h3 a3 h4 g5 b3+ Kb2 f3 g6 f4 d6 b4 g7 h2 d5 h3 Be2 f2 Ba6 f1N Ne2 f3 Nbc3 c4 Qd2 f2 Qe3 Bg4 Na4 c3+ Kb1 b2 Rg1 h1R Qd4 h2 Nf4 c2+ Ka2 b1R Nh3 Qf6 Ng5 Nc6 Nf3 Nd2 Bb7 f1Q Nh4 Rh6 Bb2 c1R Rg2 Ra7 Nf3 Qf7 Ne5 Rc2 Re2 Nf6 g8R Nf3 Qc4 Rbc1 Nd7 Ncd4 Rg7 Bh5 Rgg2 Bg7 Rb1 Re1 Rd1 b3+ Kb1 Ra5 Bc3 Ra7 Ba5 b2 Bd8 Rg1 Bc6 h1R Bb5 Rc7 Rc1 Rd1 Bc6 Rd3 Rce1 Qf2 Rf1 Ne1 Nb8+ Qd7 Be7 Qf3 Re3 Ng8 Qb5 Qf7 Rg5 Rgg2 Ka2 Rgf2 Rg2 Bd1 Re2 Qh5 Ba8 Qc6 d7+ Kf7 d8R Ne6 d6 Rhh3 Rd7 Ke8 Qb4 Qcc5 Bd5 Rf7 Bb3 Qhf5 Qc4 R3h5 Bg5 Rd5 Be7 Re5 Bh4 Rc6 Ra7 Qb5 Ra6 Rcc7 d7+ Kf8 Bg5 b1R+ Nb2 Rhf6 d8R+ Ke7 Rd3 Ke8 Rde3 Nd4 Rh3 Rfe6 Bd8 Rfe7 Nd7 Qf2 Rd2 Qf7 Rde2 Rcc1 Na4 Nf6 Rg5 Rc3 Rgg2 Rbc1 Kb2 R1c2+ Kb1 Qc6 Ba2 Re3 Qc3 Qc5 Qc4 Qb5+
2q2Rrn/2N1R1bn/2R1b3/n2q1R1B/1PP4K/rNR1B2q/1k2q3/2qQ2qb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 b6 f5 b7 a5 g5 d3 g6 Kd4 e5 d2 e6 f3 e7 h3 Kg3 f4+ Kh4 a4 g7 h2 Qb3 d1Q Na3 f2 Qc2 f3 Qb3 Nc6 b8R Ne5 Rb7 Nf7 Rd7 Qe2 Qc2 Nf6 e8R Rg8 Bd2 Nh7+ Ree7 Nh8 Kg3 h4+ Kg4 h3 Bg2 f1Q Qb3 f2+ Bf3 Qc1 Ra2 f1Q Nb1 a3 Rc2 a2 Kh4 a1N Bg4 Ra3 Ra7 Be6 Rc7 Qc8 Rc6 Qf7 Qa4 Nb3 Bh5 Na5 Nc3 Kd3 Nb5 d4 Nc7 Qf5 Na6 Qd5 Nf3 Qg1 Nc7 Qc1 Re1 h1B Rf1 h2 Rf2 Qg1 Be3 Qc1 Ra2 Kc3 Qd1 d3 Nd4 d2 Ra1 Kb2 Rf5 Qf1 Nb3 Qg1 Qf1 d1Q Qe1 Qcd2 Rc1 Q2e2 Rc3 Qc1 Ref7 Bc5 Qd1 Bd4 Rd7 Rd8 g8R Bg7 Rgf8 Re8 Re7 Rd8 R8f7 Rg8 Bf2 Bg2 Rf8 h1Q+ Rh3 Be4 Bb6 Qhg2 Rc3 Qg2f1 Bc5 Bh1 Be3 Qh3+
1r2bBb1/N1N1n3/rRK2P2/R1n1N2q/1N1P1q1Q/bb6/4B1Nn/1k2b1br w - - 0 1 illegal: No possible last move
2R2qNB/1bq2Bq1/rkP1nnP1/b1q4r/4K1B1/2Q1N3/2nB2Bq/R3nn2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 e5 c4 b5 a4 h5 g4 d5 f4 Kd7 a5 Kc6 c5 e3+ Kd3 e2 g6 e1N+ Kd2 h4 g7 b3 a6 b2 f5 d3 Ke3 d2 a7 d4+ Ke4 d3 f6 h3 f7 b4 g5 b3 g6 h2 Bg2 Nf6+ Ke3+ e4 g8B Na6 Nf3 Nc7 Nh4 Bb7 Nc3 b1Q Bf3 b2 Be2 Nc2+ Kf4 e3 Bf1 e2 Nb5 e1N Nd6 Rh5 Ndf5 Ne6+ Ke5 Qa2 Be2 b1Q Ng2 Qbb6 Bg4 Qc4 Qf3+ Kb5 Qg3 d1N Ne3 d2 Qf3 Bh6 f8B Qbc7+ Bd6 Qe8 Bf7 Qf8 Qh3 Bg5 Ne7 Qb4 Rg1 h1Q Ng8 Qh2+ Kf5 Qg7 Be5 Qd4 Rf1 Qdd6 Rf4 Qdf8 Rc4 Kc6 Bcb2 Kb5 Bf4 Bh4+ Bg5 Bg3 Rc3 Be5 Rc4 Bc3 Qf3 Ba5 Bc3 Rd8 a8B Rd6 Bd4 Ra6 Qg3 Bc8 Bg2 Bb7 Qh3 Nc3 Qf3 d1Q Qg3 Ne2 Be5 Nd5 Ke4 Qc1 Bc3 Qa3 Bd2 Qac3 Bf6 Qb4 Qe5 Qa3 Qc3 Qb4 c6 Qbc5 Rca4 Kb6 R4a3 Qh6 Bh8 Qhg7 Nf5 Nde3 R3a2 Nf1 Ne3 N2f4 Ra4 Nd5 Rd4 Ndf4 Rd8 Nd5 Rc8 Nf6+
R3nNrn/KQrRrb2/BPP2NN1/2q5/q2b4/Nk2nN2/1bb1b2B/6r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 e4 Kd6 b4 a5 c4 h5 g4 f5 g5 h3 g6 d3 g7 f3 Ke3 h2 Kd4 a4 b6 f2 b5 a3 b7 h4 b6 a2 Qg4 d2 Qh3 d1B Nd2 f4 Qb3 h3 Nb1 f3 Nc3 Ne7 g8N Ra7 Nd5 Bc2 Be3 Ng6 Nc7 Qe7 Rd1 a1B+ Qb2 Na6 b8N Bg7+ Nf6 Rg8 Bg5 Nh8 Be2 f1N Ne6 f2 Nf4 Nc7 Ng6 Ne3 Nf3 f1B e5+ Ke6 c5 d5 c6 Ne8 Bd3 Rc7 Nbd7 Be2 Bf4 Qd6 Rhf1 h1R Bh2 Rg1 Ba6 Qf8 Qc3 Bb2 Ra1 Qa3 Rfd1 Qa4+ Kc5 d4 Ra2 d3 Rd2 Qa3+ Kb5 Qf8 Rd1 d2+ Ka5 Re1 Qc5 Bd4 Qb5 Qc5 Ndf8+ Kf5 Raa1 Be6 Ra4 Bf7 e6 Bb2 e7 Rg1 Rd4 Re1 Ra1 d1Q Rd7 Bd4 Nd5 Ke4 Nb4 Bb2 Ra4 Bgd4 Ra3 Bcd3 Nc2 Qa1 Ra2 Qd1 Na3 Bc2 Nc4 Kd3 Na3+ Kc3 Ra1 Ng7 e8N Rg1 Nf6 Ne8 Bb7 Re1 Ka6 Rg1 Ka7 Re1 Be5 h2 Qa6 h1R Bh2 Reg1 Rd6 Re7 Rd7 Kb3 Bc8 Qd2 Qb7 Qdb4 Qb8 Qa4+ Ba6 Re1 Qb7 Rhg1 Rd8 Rc7 Ra8 Rg5 Rd1 Reg1 Rd2 Re5 Rd1 Ree7 Rd2 Be5 Rd7 Bed4
n1N1Q1bK/1P4n1/2RBq3/3R1nP1/1b1bk3/n2rNn1r/rq1B4/BbB4B w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 a5 f4 e5+ Kh5 c5 g4 a4 b4 e3 d4 h3 b6 a3 f5 a2 f6 e2 b5 e1N g5 h2 f7 e4 b7 c3 b6 c2 Bd3 c4 Nh3 c3 Bf1 e3 Ba3 c1Q Qe2 c2 Qd2 e2 Qf4 Qf6 Qf2 Nh6 Bd6 Be6 Bg2+ Nf3 Qe1 Na6 b8B Nc7 b7 Ke4 d5 Nf5 Na3 Qcb2 Rd1 a1B Nc4 c1R Ne3 Rc3 Nf4 Rd3 Ng6 Ng7+ Kh6 Ra2 Ba7 Qf5 Bd4 Na8 Ne7 Qg4 Rg1 h1N Nc8 Ng3 Bh1 Be7 f8B Bg8 Ba3 Bb4 d6 Qf5 d7 Qg4 Qf2 e1N d8B Nc2 Qe1 Qe6+ B8f6 Ba5 Bad6 Na3 Bc3 Bb4 Rf1 Qg2 Bd2 Bd4 Bc1 Qb2 Bf4 Ne8 B8d6 Nf5+ Kh5 h6 Kg6 h5 Rf2 h4 Rc2 h3 Rc6 h2 Qe2 Rh3 Qe1 Nh6 Bd2 Bf7+ Kh7 Bg8+ Kh8 Nf5+ Qh4 Qbb3 Qh5 Neg7 Bf6e5 Bb6 Ba1 Qb2 Rdc1 Bd4 R1c5 Qe5 Rd5 Qe6 Bg2 Rg3 Qe8 h1B Bf1 Bg2 Bc1 Bh3 Bg2 Bg4 Bh1 Bh5 Ng4 Bg6 Bfd2 B6h7 Ne3 Rh3 Rc3 Ba5 Rc2 Bb4 Rc6 Nh4 Rcc5 Rc3 Bf8 Kf4 Rd7 Bb1 Rdd5 Ke4 Rc6 Rd3 Bd6 Nhf5+
k1b1qN2/7n/N2Nr3/br1b3n/1qb1rBnq/P4RPK/3R1N2/N1QBq3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 f5 e4 b5 a3 c5 d6 Kc6 g3 Kb7 Kg2 h5 d7 c4 e5 b3 e6 f3+ Kh3 f4 d5 b4 d6 b2 e7 c3 e8N b3 Bc4 f2 Qf1 f3 Ne2 c2 Ra2 Ra6 Nec3 Nf6 Nd5 Ka8 Qe1 f1B+ Kh2 h3 Bg5 c1Q Bd3 f2 Nd2 b1R Be3 b2 Ne4 h4 Ne7 Nh7 Qb4 Qe1 Bc2 Bc4 Qc3 f1B Ba4 Bg2 Nf2 Bgd5 Bf4 Rg8 Qd2 Rg4 Nc6 Bg7 Rg1 Bc3 Qc1 Ba5 Rf1 Qde7 d8N Nd7 Nb8 Ndf6 d7 Re6 Ndc6 Nh5 Nd6 Qe8 d8N Qb4 Bd2 Rge4 Bf4 Qe1 Bd1 Qb4 Kg1 h2+ Kg2 h1N Nd4 h3+ Kh2 Qe1 Na6 Qb4 Nc2 Qe1 Kg1 h2+ Kg2 Qb4 Na1 Qe1 Nd3 Qb4 Rf3 Nf2 Bb3 Qe1 Bd1 Ng4 Kh3 Qb4 Nf2 Qe1 N8f7 Qb4 Nh8 Qe1 Ng6 Qb4 Kh4 h1Q+ Nh3 Qhe1 Nf2 Qba4 Kh3 Qab4 Nb7 Qbe7 Nd6 Qh4+ Kg2 Qb4 Nf8 Qe1 Qc3 Rc1 Qd2 b1Q Rb2 Rc3 Qc1 Rb3 Re2 Rb5 Rd2 Qhd8 Kh3 Qb4 Nb3 Qg5 Na1 Qh4+
5n1b/qNNNN3/1P2n2K/Bb2N3/P3qk2/3r1q2/1b2BRRr/b2nrQ1r w - - 0 1 illegal: No possible last move
n2B1B1q/3QqqnR/PB1N1r1K/1b1Rnb1N/k2r2r1/b7/BB5P/1r3q2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 e5 d4 b5 f4 g5 a4 c5 d6 Kc6 d7 b3 f5 b2 a5 c4 f6 c3 f7 b4 a6 c2 Nc3 b1B Bb2 c1N Nf3 g3 Bd3 g4 Ra4 g2 Nb5 g1R Nc7 b3 Ra1 g3 Nb5 g2 Be2 Rh4 Qf1 Nh6 Ra3 Nf5+ Kd2 e3+ Kd1 e4 Nc3 Ng7 Nd5 Bd3 Ba1 Kb5 Nf6 b2 d5 b1R d6 Rh6 Rb3+ Ka4 Nh4 Bb5 Bc4 e2+ Kd2 Nd3 Ke3 e1Q+ Qe2 Qd1 Qd2 Qh5 Bb2 Be7 Rc3 Qh8 f8B Qf7 Ba2 Ra7 Nf5 Rc7 d8B Rc4 d7 Ba3 Nh5 Rf6 Nhg3 Rb4 Rc4 Rgd1 Rf1 g1Q+ Rf2 Qg2 Rf3 Qf1 Rd4 Rc4 Bc7 Rb4 d8B Nd7 Rf4 Nb6 Rh4 Rc4 Rh7 Na8 Bb6 Be6 Nh5 Bc8 Ne7 Bf5 Nc8 Rb4 Qc3 Rd2 Qc6 Rg2 Qe6 Rg4 Rd5 Rd4 Qd7 Qc1+ Ke2 e3 Kf3 e2 Nd6 e1Q Bde7 Rh4 Bed8 Qee7 Kg3 Rhe4 Kf3 Qf1+ Kg3 Bg4 Kh4 Ne5 Kg5 Be6 Bc4 Bf5 Ba2 Ng6 Kh6 Rf4 Re5 Rg4 Rd5 Ne5+
1Rr4n/1qB2r2/2k1bQNP/7n/r1nR1N1b/RB4PK/Rr1rr3/2q1R2n w - - 0 1 illegal: No possible last move, all moves rejected
3q1N1K/rq1B1Bn1/2r1B1QB/1N1rnP2/kPb5/2Rp2bB/6q1/q2qn2R w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 h5 c4 d5 g4 Kd7 b4 Kc6 f4 e5 f5 a5 c5 e3+ Kd3 Kb5 g6 h4 c6 e4+ Ke2 h3 g5 a3 g7 a4 g6 a2 c7 h2 Bd2 d3+ Ke1 a3 Be2 d4 Nh3 Rh6 Qb3 Ba6 c8B Nf6 g8B Nh5 g7 Bd6 Kd1 Nd7 Qd5+ Ka4 Bf7 Bg3 g8B Rc6 Bg4 Ra7 Qe6 Bc4 Ng5 Ng7 Qg6 Ne5 Bh3 e2+ Kc1 e1N Ne6 e3 Nf8 e2 Bd7 Ra5 Bh6 Rb5 Kd2 Rd5 Rg1 h1Q Nc3+ Kb3 Rd1 a1Q Rc1 a2 Nb5 Qg2 Rh1 Ka4 Bfe6 Qb2+ Rc2 a1R Bgf7 Qb3 Rc3 Ra3 Kc1 Qd1+ Kb2 d2 Rb3 d3 Kc3 Rdc5 Kd4 Qa1+ Rc3 d1Q Qg5 Qb8 Qf6 Qb7 Qg6 Rd5+ Ke3 Bf2+ Kf4 Bg3+ Kg5 N1f3+ Kf6 e1Q Nh7 Qef2 Nf8 Ne1 Qg5 Qfb6 Qh5 Ng4+ Kg6 Ne5+ Kh7 Qa5 Qg6 Qd8 Kh8 Ra2 Rc2 Kb3 Rc1 Ra7 Rc3+ Ka4
b1K2Nn1/2RB1B2/r2b4/BBn2Pp1/2b1nRb1/Bq3N1P/2kr1Q2/2qrb3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 f4 e5 a4 d3 c4 d2 c5 g3 h3 b3 c6 b2 a5 g2 a6 e4 c7 b4 a7 e3 Ra5 e2 Rh2 e1B Qh5 d1B Be2 b3 Nc3 b1B Ra2 b2 Bb5 Na6 Ra4 Bd3 Nf3 b1N Ne2 g1Q Bd2 Nc5 Ned4 Bd6 Ba5 Nd2 Ne6 Nde4 Qh4 Ba6 c8B Qb6 Rc2 Bb7+ Bc6 Bda6 Nf8 Qb3+ Rcc4 Rh6 Qf2 Rb8 Rb4 Ba8 Rb7 Be2 Rc7 Rb7 Bb5 Rg6 Nd4 Bg4 Nf3 Rb8+ Bb7 Rd8 B7c6 Kf7 f6 Rh6 Ne6 Kg6 f7 Kf5 f8B Rg6 Qb2 Qge3 Qf2 Qc1 Be7 Be5 Nf8 d6 Bb7 Rd7 Kc6 d5+ Bd6 d4 Kb6 d3 Bd5 d2 Bf7 d1R Rb4 Bc6 a8B Re6 Be7 R7d2 Ka7 Rf6 Kb8 Bd6 Ra4 Bd5 Bc6 Bb7 Rb4 Ba8 Kc8 Bc4 Ra4 Nc3 Bce8 Ke4+ f5 Kd3 Bed7 Kc2 Rb4 Bf1 Re4 Bc4 Rf4 N3e4 Bbc6 Be5 Bb5 Ra6 Bd6 Nb7 Bdb4 Bd6 Ba3 Nbc5
2r1qB1K/2N1q3/qr3qk1/1NB1p3/4Pn2/RPB2R1n/B3r2Q/1qbn2bB w - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 Bh3 bxa4 Bf1 f5 h3 fxg4 Ra3 g3 Ra1 g2 Ra2 g5 Ra1 g4 Qc2 g3 Qd1 Bg4 hxg4 Bh6 Nc3 Bg7 Nb1 Bf8 d4 Kf7 Kd2 h5 Ke3 a5 Kf4 c5 Ke5 a3 e4 a2 f4 h4 f5 a4 d5 c3 d6 c2 f6 a3 g5 h3 b3 h2 d7 c4 Qe2 c3 Qe1 Ra6 Qe2 Kg6 f7 Rb6 Nf3 g1Q Qg2 Na6 Bb5 Nf6 Nd4 Nc5 Bf1 Nd5 Nb5 Ne3 Bb2 c1Q Nc7 c2 Nc3 Qe8 d8B Qb1 N3b5 c1B Bc3 Ne6 Qd2 Rg8 Bg2 Nd1 Bf3 Bh6 f8B g2 Qd6 Qe1 Rf1 g1N Bh1 Qh4 Rf3 Nh3 Qd2 Nef4 Qf2 e6 Bde7 Rh8 Bc5 Be3 Qd2 Bg1 Qb2 Kh5 g6 Qhe7 g7 Kg6 g8B Bg5 Bg2 h1R Qd2 Rh2 Bh1 Nd5 Qf4 Re2 Qh2 Bc1 Bf7+ Kg5 Bh5 Ndf4 Bg4 Nhf2 Bh3 Kg6 B3g2 N2h3 Bf1 Rb2 Bc4 Re2 Bd3 Qc2 Rb1 a1Q Rb2 Qcb1 Ra2 Qbb2 Bb1 Qc2 Rb2 Qd3 Ba2 Qab1 Rd2 Qc4 Rd8 Qa4 Ra8 Qa6 Ra7 Qa1 Bb1 a2 Ra8 Qb2 Ra7 a1Q Ba2 Qbb1 Ra8 Qac8 Ra3 Qa6 Bb2 Kh7 Bg7 Q8d7 Bh6 Rc8 Bf8 Qee8 Kf6 Qd6 Be7 Kh6 Bf8+ Kh5 Kg7 Qde7+ Kh8 Kg6 Bg7 Qe5 Bf6 Qf5 Bfd4 e5 Bc3 Qff6+
k5q1/n3bBnb/2p1Nr1n/rq5K/1n2P3/4Br2/3Pq1RR/1NnN1NNQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 g4 a5 e4 h5 b4 h3 g5 c3 g6 h4 b6 Kc6 b7 h2 g7 h3 Ne2 c2 Bg2 a4 Nbc3 a3 Rf1 h1Q Ng3 a2 Nb1 h2 Bb2 c1N Be5 Nh6 g8N Be7 Rf2 Ra5 Nf6 Qg8 Nd5 Qe1 Nf1 h1N Bh3 Ng3 Bd4 Be6 Be3 Qe2+ Kg2 Rh7 Ndc3 f3+ Kh2 f4 Rg2 Bd5 Be6 f2 Kh3 f3 Bf7 Ngf5 Qe1 Rg7 Nd1 Rg6 Rh2 Rf6 b5+ Kd6 b6 Nc6 b8N Na7 b7 c6 Rg2 Kc7 Nd7 Bc4 b8N Kb7 Rh2 Ka8 Ne5 Bb3 Nbd7 Qb5 Ng3 f1R Nf8 f2 Nf3 Be6 Ng1 Qe2 Na3 Bc4 Rb1 a1N Ne6 Nc2 Rb5 Nb4 Nb1 Ng7 Rg5 Ngf5 Nh1 Bb3 Rgg2 Qb5 Nd4 Be6 Ng3 Bd7 Ne6 Be8 Bh5 Bg6 Nf3 Nd4 Kh4 Bh7 Bf7 Ndf5+ Kh5 Rg1 Nfg5 f1Q Nh3 Qfd3 Ndf2 Rf1 Nd1 Rf2 Qh1 Rf3 Ng1 Qe2 Nf1 Ng7+
1BQ2bnk/1RN1b1p1/K3n3/1R1BP2r/1nb3PN/3qqb2/3b2r1/2R1rRR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Qd3 cxd4 Qc3 h4 Qg3 hxg3 Kd2 a5 Kd3 d5 c4 f5 b4 Kf7 h4 g2 e4 a4 h5 a3 e5 a2 c5 f3 b6 f4 b5 f2 c6 f3 h6 Nd7 c7 Ba6 c8Q Nc5+ Kd2 d3 Kc3 d2 Kb4 d1R Ka5 d4 h7 d3 Rh5 d2 Rh3 Qd4 b7 Ne6 b8R Re1 b6 d1B b7 Qe3 Bc4 f1N Na3 f2 Rg3 Bf3 Nb5 Kg6 Rb1 a1B Ba3 Bc3+ Bb4 Kf7 Nc7 Bd2 Rc1 Ra7 Bd5 Be7 Nh3 g1B Nf4 Ra8 Ng6 Bc4+ Na6 Bf8 Nh4 Ra7 Ra8 Be7 b8R Rb7 Ra7 Rb6 Bc3 Rb2 Nc7 Qc5+ Nb5 Be3 Rg2 Nh6 Ra6 Bf8 Rab6 Bg5 Ng6 Bge7 Bd2 Ne3 Bb4 f1Q R8b7 Qd3 Ka6 Nc2 Rg3 Qcd4 Bd6 Be3 Bb8 Bf4 Rg2 Qg1 Rf2 Bg5 Rf1 Nb4+ Ka7 Rf2 Nc7 Bd2 Rb5 Rg2+ R5b6 Rg8 h8R Qge3 Rh7 Qee4 Rb5 Rh8 Kb6 Kg8 Ka5 Qee2 Kb6 Qee3+ Ka5 Nf5 Rhh1 Rh5 Rhg1 Nh6 Nh4 Kh7 Rf2 Ng8 Rff1 Qf4 Kb6 Kh8 Ka5 Qh6 Kb6 Qhe3+ Ka5 Nc6+ Ka6 Nb4+
kBR4q/B1q1NPnr/2N3B1/Q5q1/2b1bn1R/rqq2KBp/2r1nB1P/8 w - - 0 1 illegal: No proof kernel
b2n1qn1/1pb5/k2q1BB1/BqP1qR2/3Bq2K/2B2Qr1/r1PNbN2/4R1n1 w - - 0 1 illegal: Other
k2N2n1/7Q/1qrb2Bb/8/p3PRR1/R1Bb1r1n/P4Rqr/qnN1KRb1 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 e4 Kd7 h4 Kc7 d4 a5 c6 f5 h5 b5 d5 g5 h6 a4 h7 b4 Bh3 f3 Bg2 f2+ Kf1 f4 Rh2 c3 Nd2 g3 Qg4 b3 Rh1 c2 Qh4 b2 Rh2 b1N Ke2 f1R Qh6 g4 Bh3 g2 Bb2 c1B Ndf3 g3 Ne5 Na6 d6+ Kb8 d7 Nc7 Nf7 Rf3 Bf5 Bd6 Bg6 Ne6 Bc3 Ng5 Ke1 Qb6 d8R Ra6 c7+ Ka8 Rf8 Nh3 Ne2 g1B Rf2 g2 Nd8 Bd7 Rf6 Bb5 Qh4 Bd3 c8R+ Qb8 Rc7 Rc6 Rg7 Qb6 Rf8 Rg3 Qh5 f3 Rf5 Bh6 Nc1 Bh2 Rf4 g1Q+ Rf1 Qg2 Rf2 Na3 Rb1 Bg1 Rb3 Nb1 Ra3 Ng5 Rf1 Rh3 Rgf7 Rh2 Rg4 Nh3 Rff4 f2+ Kd1 Nf6 Qf5 Rg8 h8R Rf8 Rg8 Rf7 Rf8 Ng8 Qd7 Rf6 Qh7 Rf5 Re1 f1Q Rf6 Qff2 Rf1 Qfb2 Ke1 Qa1 R4f2 Rf3 Rf8 Bc4 Rff4 Bd3
2Br2Nn/1B1b4/1P4Nn/2B1nq2/2B3k1/q4pbb/1BQ1PqrR/R1K1r2r w - - 0 1 illegal: No possible last move, all moves rejected
B1bB1b2/3BpnR1/1QBq2q1/5r2/3N2b1/R2qn1qn/rP2rNPK/k5B1 w - - 0 1 illegal: No possible last move, all moves rejected
3r1B2/NBpN3R/1n1q1Pn1/2NQN2q/b4b2/r2K1P1N/nkr1r3/1b1R3q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 a4 Kd6 d4 Kd5 g4 e5 g5 h5 g6 b5 g7 c3 f6 Kc4 a5 c2 f3 Kb3 a6 h3 d5 h2 d6 e4 a7 e3 d7 h4 Na3 h3 Kd3 e2 Qd2 e1R Qe3 Bd6 Qe4 Bf4 Nb1 Ne7 g8N Ng6 Ba3 c1R Bg2 Re2 Ne7 Rcc2 Qc6 Bb7 Qe4 Bc6 Nc8 Qf8 d8N Nd7 Bb2 Nb6 Ba3 Qd6+ Qd4 Rf8 Nf7 Rd8 Nc3 Bd7 Rf1 Be8 Na4 Ka2 Nh6 b3 Nc5 b2 Ng4 b1B Ne5 b4 Qd5+ b3 Rd1 Ba4 Bf1 Ka1 Ne7 b2 N7c6 Re8 Bb4 Rad8 a8N Re3+ Kd4 Ra3 Ba6 Re6 Na7 Ree8 Bb7 Re6 Ne2 Re7 Rhf1 h1Q Ng1 h2 Nh3 Ree8 Ng4 Ree2 Ne5 Qg1+ Rf2 Qg5 Rg2 h1Q Rh2 Nc8 Nb6 Qh5 Nbd7 Nb6 Rd2 Ba2 Rd1+ b1N Nf2 Kb2 Nh3 Nc3 Kd3 Qg4 Nf2 Qg5 Rh7 Qgh5 Nh3 Bb1 Ne4 Qc6 Bf8 Qd6 Nec5 Na2+
2rN2B1/R1B4N/1P1Kb1b1/N1pn4/P4k2/1R1QbN1b/Nqbb4/r1q2b1n w - - 0 1 illegal: No proof kernel
5R2/5r2/5r1B/rb6/1knNrpK1/1r1q1QBB/1NrPB1PB/1nbnq2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 b3 a5 b6 f5 b7 h5 e5 c3 e6 c2 e7 a4 e8B a3 Qe2 h3 Qa6 h4 Be2 h2 Bd7 a2 Beb5 h3 Bd3 Rh6 Qg6 Ne7 Be4 Nbc6 b8B Na5 Bb7 Kb4 Qg7 c5 Bc7 c4 Na3 c3 Ba6 Nc4 Qg5 Rf6 Be8 Qd3+ Kf2 f3 Kg3 f2+ Kh4 f1R Bh5 Nd5 Bb6 Bd7 Be3 Re8 Be2 Re4+ Qg4 Bb5 Bb2 c1Q Nf3 c2 Bc8 Nc3 Bh6 Nb1 Be5 Qe1+ Bg3 c1R Nd4 Rc2 Kh5 Rf2 Qf3 Rf7 Rf1 h1N Kg5 h2 Bd7 Na5 Nc4 Bd6 Nb2 Nc4 Qe3 Rff4 Qf3 Nf2 Bc8 h1R Be6 Ka3 b4 Nd1 Bc8 Rh3 Be6 Bd7 b5 Kb4 b6 Bb5 b7 Be5 b8B Bh8 Nb3 Bc3 Nd4 Rf6 Na4 Bb2 Rf2 Bc1 Nb2 Nbc3 Rb1 a1R Bh2 Ra5 Bd7 Rfh4 Bbg3 Rhf4 Ra1 Nb1 Rf1 Ra3 Rh1 Rb3 Ra8 Ra3 Rf8 Ra5 Qf2 Rf3 Be6 f4 Kg4 Rfe3 Qf3 Rh5 Bg5 Rh7 Bh6 Rhf7 Kh5 Qa3 Bh3 Rb3 Kg4 Qa1 Na4 Qc3 Nb2 Qd3
N2N3Q/1B4nb/1n3r2/1P1NP3/2RN1bqb/bR2b1Br/KNq1n1p1/5bk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 d4 g5 Kd2 c5 Kc2 f5 Kb2 a5 h4 g3 b6 g4 d5 Ke5 h5 g2 b5 a4 d6 c3+ Ka2 f3 b7 a3 d7 c2 h6 g3 h7 f2 Nd2 Kd4 Bb2+ Ke3 Bc4 f1N Rh3 Kf2 Ne2 c1Q Nc3 g1B Nd5 g2 Qc2 f4 Rc3 f3 Qd3 Qg5 d8N Nh6 Ne6 Qg4 Nf6 Qc2 Ng5 Bf5 Ng8 Nd7 b8N Ng3 Ne7 Ra6 Bd5 c4 Bb7 Nb6 Nbc6 Ne2 Rb3 c3 Nd5 Bd6 Qc4 Bf4 Ne6 Bg6 Rb1 Nf5 Nec7 Ng7 Rc1 Bf5 Na8 Bg6 Ka1 a2 Nd4 Bf5 Nf1 Bg6 Nfe3 Bf5 Nd1+ Kf1 Qc8 Bge3 Nac7 f2 Na8 Kg1 Ba3 f1B Nb2 Qd1 Bb4 c2 Be1 Qd2 Bg3 Qd3 Rb1 c1B e5 Qc2 Rc3 Bg5 Qb8 Bh4 Rc4 Bf4 Qe8 Bce3 Qc8 Na4 Qe8 Rf6 Qh5 Nb6 Qh6 Re8 h8N Bh7 Nf7 Rh8 Nd8 Qcf5 Nd3 Qe4 Kb2 a1B+ Ka2 Bb2 Qh5 Ba3 Rb3 Qef5 Nb2 Qc2 Qe8 Bg6 Qg8 Rh5 Qh8 Bh7 Nc3 Bhg5 Nd5 Rh3 Qf8 Bh4 Qe8 Qe4 Qh8 Qc2
1k4r1/2nrnRnN/4b3/P1bqR3/Qq1n1P2/1BnpRK1N/2R4R/qn4B1 w - - 0 1 illegal: No possible last move
2b1kbN1/1Q2nn1N/n2n3P/1RBNbn1B/r5K1/1N1q1p1N/q6P/3r2Rn w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 f5 Kf3 b5 e4 d5 c4 g5 a4 g4+ Kg2 d3 a5 d4 h6 b3 e5 d2 e6 g3 Kf3 b4 a6 d3 c5 g2 e7 b2 c6 b3 a7 Na6 Qe2 d1N c7 d2 Qc4 Nf2 Ne2 g1B Qc5 d1N Nd4 Nd3 Ne6 N1f2 Nd2 b1N Qb4 b2 Qb8 Na3 Qb7 b1Q Ng5 Nc4 Nh3 Nd6 Ra5 Qa2 Rb5 Rh7 Ba3 Ne5+ Ke2 Nef7 Kf3 Rg7 Nb3 Rg6 Bc5 Re6 Ng5 Re1 Be2 Rd1 Nh3 Qd7 Kg2 f3+ Kg3 f4+ Kh4 Rb8 a8N Qd8 Nb6 Ra8 Nd5 Qd7 Ba3 Qf5 Bb4 Qd3 Kh5 Nf5 Bc5 Ne4 Kg4 f2 Bf3 f1N Be2 Be3 Rg1 Bd4 Bf3 Be5 Be2 Kd7 e8N N1g3 Bf3 Nh1 Nef6+ Ke6 Be2 Ned6 Nh7 Kd7 Bf3 Ke8 Be2 Bd7 c8N Be6 Nce7 Bc8 Nc6 Nge7 Bf3 Ng6 Nce7 Ra7 Ng8 Nge7 Kh5 Nd8 Bg4 f3 Kg5 Ra8 Bh5+ N8f7+ Kg4 Nb4 Ndf4 Ra4 Nd5 Na6+
k2b1B1N/3p2nB/n1P2B1Q/1BBN3b/1b1b1Kb1/4RrP1/1R2qr1q/2r3b1 w - - 0 1 illegal: No possible last move
rBNb2b1/1RPK1nbR/3BQb1r/2p3k1/6N1/2nPrB1q/B4b2/2nBn3 w - - 0 1 illegal: No proof kernel
3B4/1rp2r2/2nRK1QB/q2N3B/1b2R1B1/r1PrB1k1/Pn1r2qr/2b1N2q w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 Kg5 d4+ e3 d5 b5 f3 b3 c3 b4 d6 h4 d7 h3 f4+ Kh4 f5 e2 g5 e1B f6 h2 f7 b2 g6 b3 g7 Bd2 Bd3 Ra3 Be4 Nc6+ Kf5 e5 Bf3 e4 Bh5 e3 Qe1 e2 Bg4 Bb4 f8B Ne5 Qd1 e1R Bd6 Re2 Bh3 Qg5+ Ke6 Nc4+ Be5 Ne7 g8B Nc6 d8B Be3 Qd7 Rd2 Ne2 g1Q Nf4 g2 Bf7 Kg3 Bd4 Qa5 Qd6 Rh7 Bg6 Rf7 Bg4 Qf1 Bg7 g1Q B6h5 Qfg2 Bh6 Q1f1 Rg1 h1R Qd3 Qd1 Re1 Rh2 Qg6 Rd3 Nd2 b1R Nd5 b2 Re2 Qdh1 Nf3 Bf4 Be3 Rbd1 Rc1 b1R Ne1 R1d2 Rd1 Nb2 Bd4 Rc2 Re4 Bc1 Bg1 Rdf3 Rdd4 Rd3 Bge3 Rcd2 Nf6 Nc4 Rd6 Rbb3 Nd5 Nb2 Re5 Bc5 Re4 Rb7 Bdg5 Bb4 Bf6 Qa8 Bd8 Qa5
2B1RRN1/b2b1Nk1/3q1nq1/1R1nnPRp/1b4n1/Kb2r1QP/1r6/1b2R2B w - - 0 1 illegal: No possible last move, all moves rejected
3K1bB1/6q1/1B1n1Nk1/P2N4/P1n2q1R/rRbb1Br1/qQ2p2B/bB2bq2 w - - 0 1 illegal: No proof kernel
b3b3/2r1Bq2/NPp2rRN/3qb3/1NP2bn1/NK2b2R/2B5/k1NQnrr1 w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 g4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 h5 b4 a5 g5 f5 g6 e5 b6 a4 b5 f2 b7 e4 g7 e3 b6 a3 Be2 f1R Bb5 a2 Qe1 e2 Nf3 f4 Bb2 h3 Bd3 h2 Na3 h4 Bb5 h3 Nb1 Na6 b8N Bc5 Qd2 e1B Na3 Nb4 Ba6 Rh7 Rd1 a1B Nd7 Nd3 Kb3 Nh6 g8N Bg3 c3 Ng4 Nh4 f3 Bb5 f2 Ng2 Ne1 Nb8 Bf4 Nh6 Bd7 Na6 Be8 c4+ Ke4 d5 Bce3 Bf6 Bae5 Rg1 h1B d6 h2 d7 Rc8 Ra1 Rf7 Be7 Rf6 Qc1 Kd3 Ba4 Rb8 Ra2 Rb7 Qa1 Qa8 d8N Ra7 Qc1 Qd5 Nc6 Qf7 Ncb4+ Kd4 Nh4 Ba8 Ng6 h1Q Qc2 c6 Qd1+ Bd2 Rc2 Qhd5 Rc3 Rc7 Rh3 Be3 Rg2 Rg1 Nf4 f1R Nfd3 B3f4 Kb2 Bde3 Bc2 Re6 Kb3 Rf6 Ka4 Kc3 Nc1 Kb2 Rgg3 Ka1 Kb3 Nf2 Rg6 Ng4
B2qNk2/1NP2rbP/2NbnQp1/1N1q1r2/R1KBb2r/7b/2N1rn1r/1R6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 Kd3 a5 h4 f5 b4 f3 c4 f4 e4 g3 h5 g6 c5 f2 h6 f3 e5 g2 c6 a4 c7 a3 b6 a2 b5 Nd7 e6 Nc5+ Kc2 d3+ Kc3 d2 e7 d4+ Kb4 d3 b7 Nf6 b8N Bh3 b6 Ne6 b7 Ng4 Nc3 Ra4+ Kb3 Bg7 Nge2 g1B Qe1 d1R Bg5 d2 Nc6 Bh2 b8N Bd6 Bg2 f1R Qf2 Rde1 Ned4 d1B+ Nc2 Re2 Nd7 Rae4 Qh4 f2 Nb5 Rc4 Rb1 a1Q Bf6 Qe5 Nc5 Kf7 e8N Kf8 Nb7 Rf4 Qh5 Rf5 Rh2 Rh1 Qg5 f1R Kc4 Nf2 Bd5 Rh7 Rg2 Rh2 Rg4 Re3 Qf4 Bf3 Qd4 Re2 Qb2 Qg3 Bd4 Be4 Qc3 Qe5 Qa1 Bf6 Qb2 Rf7 h7 Bg7 Qc3 Rh5 Qf3 Rh4 Qf6 Nc5 Rg3 Ne6 Ra3 Nd1 Ra7 Rf5 Ra4 Nf2 Nc5 Qd7 Nb8 Rg5 Ba8 Rf5 Nb7 Qd8 Nc6 Qd5+
7k/2Ppq2b/3P1R2/1BRqR1n1/rrbRrb1Q/r1b1BNR1/bnNK4/8 w - - 0 1 illegal: No possible last move
1qn4k/R1p1br1N/1NB2bb1/B2P4/Br5q/1Rq2n2/BPb2BQ1/K1q1q3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 f5 Kd2 Kf7 Kc3 Kg7 g4 h5 e4 a5 e5 h3 d5 h2 b6 h4 b7 a4 g5 a3 e6 h3 g6 a2 e7 f3 e8B f2 Na3 f4 Nc2 f3 Bf4 Ne7 Bf7 Ra4 Rb1 a1Q Ne1 Nd7 b8B Rh7 Qe2 Qa3+ Kc2 c3 Be8 Kh8 Ra1 Ne5 Kb1 Bf5+ Nd3 Qb3 Bb5 Rf7 Ba7 Qb8 Bc6 Nc8 Bd2 Be7 Bb6 Rf4 Ra7 c2+ Ka1 c1B Bda5 Rb4 Nc5 Bcg5 Nd7 Bgf6 Be3 Bd3 Nb6 Bb1 Qd2 Qc2 Bc4 f1B Ba2 f2 Nf3 Bd3 Ng5 f1Q Qg2 Qfc1 Bf2 Bf5 Re1 Qb3 Re4 h1Q Nh7 h2 Re3 Qhe1 Rf3 h1Q g7+ Kg8 Ba4 Qh4 Re3 Qbc2 Rb3 Nf3 Bc6 Bg6 Ba4 Rf8 Bc6 Qcc3 Ba4 Kf7 g8B+ Kg7 Bf7 Kh8 Bfe8 Rf7 Bec6 Bbc2+
K1k5/2rnqqR1/qb2b1q1/2RrrP2/NN2Q1rN/3NBp2/n3bP2/5NB1 w - - 0 1 illegal: No proof kernel
qnR1r3/1n5b/bQ2P2b/3rB1B1/2rr1qkB/2bNKnPp/8/2R2BBN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 Ke6 b4 Kf5 g3 a5 e3 c5 d5 h5 b6 c3 b7 h3 d6 h4 d7 h2 b5 c4 b6 c2 Nh3 a4 Nd2 a3 Nb3 c3 Qd4 f3 e4+ Kg4 Ra2 f5 e5+ f4 e6 Nf6 Qe5 Ne4+ Ke1 f2+ Ke2 f3+ Ke3 Nd6 Bg2 f1R Kd3 f2 Ra1 a2 Ke3 Ra4 Qa5 Rd1 Ng1 Rd5 Bd2 c1R Nc5 c2 Nh3 Rad4 Nd3 f1Q Rg1 h1B Qc5 Qff6 Bf1 Be4 Qb5 Qe8 d8B Bh7 Rb1 a1B Nhf2+ Kh5 Rg2 h3 Nh1 Bc3 Qa5 Qff7 Bh4 Kg4 Rf2 Qc7 Qb4 Bg7 Rf8 Qa4 Rd8 Re8 Qb5 Qa8 Qa6 Bd7 Rc8 Bb5 Qa5 Ba6 Ra1 Nd7 b8B Nb7 Ba7 Nb8 Rb1 Rc4 Ra1 Rd1 Qb4 c1N Qa5 Nd6 b7 Ne2 Rc1 Nd4 Bc5 Nf3 Qb6 Nc6 b8B Nb7 Bd4 Bf8 Ba7 Nb8 Be5 Bg7 Ke2 Rdd4 Bdg5 Bh6 Kf2 Qf7 Ke3 Qf4+ Kf2 Rc5 Qb2 Rcc4 Nb4 Rd7 Bb6 R1d5 Nd3 Rdd8 Ke2 Rb5 Bg1 Rbc5 Qb6 Rdd4 Kf2 Rcd5 Ke2 Qf6 Ke3 Qf4+
B4R2/kr3B1N/1nnPB1nn/B4Nq1/K1bB1P2/bQ1br3/p2r2q1/3b1R2 w - - 0 1 illegal: No possible last move, all moves rejected
1k3n2/2n1B2P/3NBqRn/2Q1n3/B3qqPN/5b1r/Rb2BrpB/4Kr1q w - - 0 1 illegal: No possible last move, all moves rejected
1rk3bN/3n1P1R/2r1nq2/K3PNbQ/1qr1N1p1/2rn4/nN4qB/1R1B2N1 w - - 0 1 illegal: No proof kernel
3n2BB/3PR1p1/1Qr2Bb1/r7/bNB3Bn/1Pb2N2/1n3Rqb/kq2Kn1q w - - 0 1 illegal: No possible last move
1B4bq/p4q2/1r2QrNN/4q1K1/1PNNbn2/1P1RnRb1/k2bq3/1N1B3n w - - 0 1 legal: proof: g4 c5 f4 h5 d4 cxd4 f5 hxg4 a3 b5 f6 b4 axb4 exf6 Bg5 f5 Bc1 f4 Kd2 Ke7 h4 Kd6 c4 f5 e4 g5 h5 d3 h6 g3 h7 g2 Qc2 f3 Ke3 g4 Kf4 d2 Rh6+ Nf6 Nh3 g1B Ra3 d1B Qc3 f2 Ra4 g3 Be3 g2 Rg6 Bc2 Bd3 f1Q+ Nf2 Qe2 Rh6 Na6 Rh2 Nd5+ Kg3 f4+ Kh3 f3 Kg4 Nc5 Rh4 Nf4 Ra3 Rb8 Rh2 Rb6 Rb3 Bh6 Rh3 Rf8 h8N Rf6 Ng6 Bh2 Qe1 Bg3 e5+ Ke6 Bd4 Ne4 c5 Kd5 c6 g1Q e6 Qh8 c7 Qh2 e7 Bb7 Rc3 Bb3 Bc2 d6 Rd3 Kc4 c8N d5 Bc3 d4 e8N Bg5 Nc7 Bd5 Rd2 d3 Bd1 Bc2 Be5 Kb3 Ne6 Ka2 Nd4 Bg8 b3 Bh6 Nd6 Bg5 Nh1 f2+ Nf3 f1Q Nc4 Qe3 Rf2 d2 Nd4 Qee2+ Rf3 Bh6 Nf2 Bd3 Bc2 d1N Bc7 Nh5 Bb8 Bd2 Nba3 Nf4 Nb1 Nc5 Kg5 Ne3 Bd1 Be4 Ng4 Ncd3 Nh6 Nf2 Ndf5 Nh1 Nd4 Qd3 Nc2 Qd7 Nd4 Qf7 Qe2 Ng4 Rd3 Ne3 Qg4 Qfe2 Qe6 Bf2 Rf3 Bg3 Qd6 Qh3 Qd7 Qhe6 Qe7 Qd6 Qe6 Qe5+
4R3/kbBnbRq1/3N1nb1/PBbr4/b2pnKbN/3P3R/3n2Rr/2R4Q w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 c3 axb4 Rh2 bxc3 Rh3 Ra7 Rh1 Ra8 Ke2 h5 Kf3 c5 a4 b5 g4 d5 g5 Kd7 f6 Kc6 f7 Kb7 a5 e5 g6 e4+ Kf4 e3 f3 d4 g7 h3 Ne2 c2 Ng3 h4 Qe1 e2 Qf2 e1N Qe2 b4 Rh2 b3 Nc3 b2 Qd1 b1B Rh1 c4 Ra3 h2 Nh5 h3 Na2 c3 Nf6 Nd7 Qe2 Bc5 f8R Ka7 Ne4 Qc7+ Nd6 Ngf6 g8R Bb7 Qe5 Rd8 Nb4 Rh7 Rhg1 h1B Qd5 h2 Bb5 Rh5 R8g2 Nd3+ Kg3 Rh4 f4 Nf2 f5 N2e4+ Kf3 Rh7 Nd3 Bc6 Ne1 Rh6 Ba6 Ba4 Rf7 Rh7 Rb3 Rh4 Ba3 c1N Bb5 c2 Rf1 Rh5 Kf4 Qb7 Re3 Nb3 Rh3 c1B Nf3 Bb2 Bb4 Ba3 Nh4 Rh6 Rc1 Qc7 Re2 Bf3 Rg2 h1B Qc6 Bg4 d3 Ba2 Be1 Nbd2 Bf2 Be6 Bg3 Bh5 Qd5 Bg6 Bh2 Ng8 f6 Bg4 Rh7 Rh5 f7 Ngf6 f8R Qb7 Qc6 Rd5 Rff7 Rh8 Rhg7 Rh7 Rg8 Bab4 Ndf5 Be7 Nd6 Bc5 Rh8 Qb8 Bg3 Qf8 Rg8 Qg7 Re8 Rh6 Re2 Nb1 Ng2 Rg5 Rh4 Ba3 Nb7 Nd6 Rec2 Bh3 Kf3 Bc5 Rf2 Nc4 Bc7 Bg4+ Kf4 Ncd2 Nd6 Nc3 Rh2 Rh3 Nh4 Bg2 Qe4 Re5 Qe1 Bb7 Qh1 Nce4 Rf3 Rg5 Rg2 Rh2 Rh3 Rd5
2q1Q2n/1Rp3qq/3br1NN/1PPKn3/2rr4/2Rnqk2/1RB4R/B2r2Rr w - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 f5 Ke2 b5 Ke1 bxa4 h3 fxg4 Bd3 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Qd6 Na3 Qd5 Nb1 Qd8 Ke2 Kf7 Ke3 Kg6 f4 h5 c4 e5 b4 a5 d4 h4 c5 a3 b5 a2 f5+ Kg5 d5 a4 d6 h3 f6 a3 f7 h2 d7 Bd6 f8R Qc8 d8R Rh4 Rf6 Nc6 Bd3 Nh6 Qe1 Ra4 Rf4 Rd4 Nc3 Nf7 Rf3 Nh8 Rb1 a1Q Bb2 a2 Nge2 g1R Re8 g2 Nf4 Rf1 Nd1 g1Q+ Nf2 Rc4 Qb4 Rd1 Qe1 Qg3 Rg1 h1R Ng6 Qh2 Bd4 Qc3 Rb2 a1Q Rg2 Qh3 Rh2 Qb3 Bc3 Rd4 Rg3 Qf7 Rf8 Qh7 Bc2 Rc4 Rff3 Rcd4 Rg1 Rc4 Ke2 e3 Rfg3 Rcd4 Kf3 e2 Ke3 e4 Rf3 Kh6 g5+ Kh5 Ng4 Ne5 Nh6 Rc4 Qf1 e1N Qe2 N1d3 Qe1 Nc6 Bf6 Nce5 Bg7 Rc3 Kd4 e3+ Kd5 e2 Bf6 Rcc4 Re3 Ng4 Bd4 Nge5 Reg3 Nf2 Rc3 Nfd3 Rb4 Nf3 Ra3 Qhf5+ Ne5 Qf4 g6 Be7 g7 Qg3 Rbb3 Kg5 Bc3 Kf4 Bb2 Qc1 Ba1 Ke3 Rb2 Rhd4+ Kc6 Qg5 Rc3 Qd2 Qh4 e1R Qh5 Bf8 Qe8 Qe7 Rg6 Kf4 g8R Ree4 Rd6 Qe3 Rg1 Qeg7 Rdg6 Ng5 Re6 Ngf7 Ng6+ Kf3 Rd6 Qf5 Rd8 Bd6 Rb8 Qc8 Rb6 Re6 Rb7 Rh4 Kd5 Nfe5 Qd8 Rhg4 Qe8 Rgd4#
B5q1/NrB5/1B1rb1p1/nQb2rk1/3qn1Pp/1N1n3P/4BBb1/R1R1q1K1 w - - 0 1 legal: proof: d4 a5 b4 c5 e4 cxd4 a3 f5 a4 b5 axb5 fxe4 Ba3 axb4 Bb2 Ra4 Bc1 Ra8 g4 Kf7 c4 Kf6 f4 e5 Kf2 h5 f5 d5 h3 g6 b6 d3 b7 d2 c5 d4 c6 e3+ Kg2 h4 c7 e4 Nf3 d3 Nc3 e2 Qc2 d1B Qd2 e1N+ Kg1 e3 Qb2 e2 Qa3 b3 Ne5 b2 Qa6+ Nc6 b8B b1R Na4 d2 Qb5 Kg5 f6 Ra5 f7 Nd3 Nc5 e1Q Nb3 Be6 c8B Bf3 Bc7 Bg2 Bb7 Nf6 Ba8 Ne4 Ba3 d1Q Bc5 Qb8 Bf2 Bc5 f8B Qe8 Bfd6 Qg8 Bb6 Ra6 Bb8 Rh5 B8c7 Na5 Nc6 Qdd2 Na7 Qf4 Bd8+ Qf6 Bbc7 Rd6 Bb6 Rb2 Bdc7 Qd4 Rc1 Kf6 Ra1 Rf5 Rc1 Kg5 Ra1 Qd2 Be2 Qe1+ Kh2 Qdc3 Qc4 Qe8 Nd2 Nc6 Ba5 Rb7 Qb5 Qf1 Bab6 Qd4 Nb3 Qg8 Rg1 Qc1 Rd1 Qb1 Kg1 Na5 Rf1 Qc1 Rd1 Qcc3 Rdc1 Qe1+
8/1pR1rP2/1R2b2p/3P2bQ/kr1q1nrb/nR2q1BR/N3q1NR/n4BK1 w - - 0 1 illegal: No possible last move, all moves rejected
1n2Nn2/2QnR1N1/2p2r2/1p1NBPbr/5bq1/1KR1b1N1/b1P3b1/N2Bkr2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b3 e5 b4 axb4 dxe5 f5 Kd2 fxe4 Ke2 Ke7 Ke1 Ke8 Kd2 Ke7 h4 Ke6 a4 Kd5 f4 Kd4 h5 b5 e6 d5 h6 g5 f5 g3 e7 g2 e8N g4 a5 g3 a6 b3 h7 b2 a7 Qh4 Na3 b1B Nf6 e3+ Ke1+ Kc3 Qe2 d4 Kd1 d3 Ne8 d2 Rh3 Ne7 Qg4 Ng6 Ng7 Bb7 Qf4 Bd6 Nc4 Nf8 Na5 Qg4+ Be2 Be7 Bf3 Bg5 Nb3 Bc6 Ke2 d1R Qd6 Rf1 Bb2+ Kc4 Be5 Bf4 Nd4 Kc3 Qe7 Be4 Ra4 c6 Qc7 Kb2 Ra3 Kc1 Rc3 Bd5 Kd3 e2 Rh5 Kd1 Nb3 Ke1 Na1 Bg5 Rh6 Bf4 Re6 Bg5 Nh3 g1B Nf4 g2 Re7 Bh2 Nfh5 Bhf4 Ng3 Be4+ Kd4 Bd5 Kc5 g1B+ Kb4 Bge3 Ka3 Qh5 Bg4 Bg2 Bf3 Qg4 Kb4 Kf2 Kb3 e1N Be2 Nd3 Bd1 Rg8 h8N Ke1 Nf7 Rh8 Nd6 Rh5 Nde8 Nc5+ Ka3 Ncd7 Kb2 Na6 Kb3 Rd8 a8N Nab8 Nb6 Rc8 Nd5 Rd8 Nd6 Re8 Rf7 Re6 Nde8 Rf6 Re7 Ba2+
nB1Nq2b/R3R3/1P5Q/1rN2kb1/P1Bp1rN1/KNb1n1pn/2b3rb/7N w - - 0 1 illegal: No proof kernel
1B2B2N/2b1n1Pk/p1Q5/N2N1q2/RNP3nn/2R2b1K/b1n1r1pr/rN5n w - - 0 1 illegal: No possible last move
k3nr1N/N1pb2N1/2r2PBN/B6R/K1Q2NP1/2r2rn1/1rbbn1p1/2qR4 w - - 0 1 illegal: No proof kernel
1rk3rB/2r1q2n/2r4K/3B1b2/1NnN1P1R/pp4Bq/P2rBR2/Qb2n1B1 w - - 0 1 illegal: No proof kernel
4q1q1/n3R2Q/n2B1NB1/1n6/Pq2KpNp/B2R1r2/b3BbPn/1n1B2rk w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 a4 c5 g6 h5 g7 b5 d3 f5 Ra3 b3 Rh2 b2 Qe1 b4 Qf2 b3 Nd2 b1Q Ra1 b2 Ra2 c3 Qe2 c4 Qf2 c2 Nh3 c3 Nb3 Be6 Qa7 Qe8 Na5 Ne7 g8B Na6 Ng5 Nc6 Qb7 Bc5 Nh7 Bf2 Be2 Na7 Ra3 Ba2 Bb3 h4 Rh1 Rf8 Nf6 Rd8 Nc4+ Kd4 e5 Rd6 Bd2 c1N e6 c2 e7 Re6 Ne3 Rd6 Bg8 Nb3 Re1 c1Q Bb4 Qc4 Neg4 Qcf7 Bh7 Qg8 Bg6 Rc6 Bd6 Rc1 Bd1 Rf7 Re6 Rf8 Be2 Rg1 Bh5 Qe1 Re3 b1N Re5 Qd8 e8B Qb4 Beg6 Qe8 Qc7 Nbc5 Qh7 Ne4 Rb3 Nec3 Re7 Ncb5 Ne4 Kd5 d4 Rf7 Bd1 Kc4 d5 Kd4 Nef6 Rf8 Rb2 Kd3 Rb3+ Kd2 Rf7 Ke1 Re7+ Kf1 Ra3 Rh1 Rd3 Kg1 Bc7 Rf7 d6 Rf8 d7 Rf7 Ne3 Kh2 d8B Rg1 Bd6 Kh1 Neg4 Rf8 Rd5 Rf7 Ke2 f3+ Kd3 Bd4 Bb6 f2 Bbc5 f1N Be2 Bf2 Rd4 f4 Ke4 Nh2 Bd1 Rg7 Be2 Qd2 Ba3 Qb2 Rd3 Qd2 Re5 Rc7 Bd1 Rc3 Re7 Rb3 Ne3 Qc3 Bhe2 Qa5 Neg4 Qe1 Rd2 Rf3 Rd3 Qb4+
NQb3K1/3BN1P1/2bb1RN1/4p1n1/1Pb1RB2/1b1qp3/nr3N2/1Nnq2kr w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kg6 c4 h5 f4 d5 c5 a5 g5 Kf5 b3 Kg4 f5 Kg3 c6 e5 b6 d3+ Ke3 h3 f6 h4 f7 d2 b7 a4 c7 h2 g6 h3 g7 d4+ Ke2 a3 Qc2 d1B+ Kd2 Kf2 Qc5 a2 Qb6 Na6 b8N Nh6 Bb5 Nb4 Nc6 Bd6 f8N Rb8 Ne7 Nf7 Bd7 Ng5 Nfg6 Rh7 Qb7 d3 Kc3 d2 Kc4 Bc2 Qb5 d1Q Bf4 e3 Qb6 Kg2 Qa7 Rb6 Qb8 Rb7 Nf3 Rb6 Rf1 h1B Ng1 h2 Nh3 Rb5 Rf3 Rh6 Nf2 Kg1 Rg3+ Bg2 Rg4 h1B Rh4 Rh8 Rh6 Bh3 Rh4 Ba6 c8N Bc6 Nb6 Rh7 Na8 Bg4 Be8 Bgc8 Bd7 Rh8 Bg3 Rh5 Re4 Rh1 Bf4 B8b7 Nd2 Bc8 Rc1 a1N Nb1 Qe1 Rd1 Na2 Rd2 Qd1 b4 Nb3 Rdd4 Nbc1 Rd5 Ra5+ Rb5 Bab7 Rb6 Ra3 Ra6 Rb3 Rb6 Rb2 Ra6 B6a4 Rc6 Bd3+ Kd5 Nf7 Ke6 Ng5+ Kf6 Bc4 Ra6 Bab3 Rb6 Ne6 Kf7 Bc6 Ra6 Qa5 Kg8 Qad5 Ra5 Q5d3 Rd5 Bc5 Rd6 Ng5+ Re6 Nf7 Rf6 Bd6 Bf5 Ng5+ Be6 Nf7 Bd7 Ng5+
2Rn1Nrk/1r3pb1/bb2QRPK/rR5B/PR2bnq1/2B4R/2p1b2N/2q5 w - - 0 1 illegal: No possible last move
1k3B2/1pb1K2r/4B1nq/rBN1B2p/qN2RP1P/n1r4Q/2B5/Rrbn2r1 w - - 0 1 illegal: No possible last move
rNq1N3/PbNq3B/p1N1nB2/7K/pb1b3n/kP3R2/r2Q3N/r1R2r1r w - - 0 1 illegal: No proof kernel
1r1B1bBB/1NrNR3/1K1qr3/8/P2pkB2/np1R1r1q/2bnPB2/b3q2Q w - - 0 1 illegal: No possible last move, all moves rejected
1n4R1/3B2bR/RB1R1r2/n2K4/Pp3Nbq/b2n2Pp/rkNR2q1/2r1rQ2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 d6 f5+ Ke5 b5 d7 h5 a3 c5 d5 f3 g3 h3 d6 b3 Nd2+ Kc3 e4 f2 Ra2 h2 Bd3 f1Q Be2 c4 Ndf3 h4 Rd2 b4 Rd5 b2 Rb5 b1R Nd4 h3 Bg4 f4 Kd5 f3 e5 f2 e6 Bg7 e7 Rh6 e8R Rf6 Be3 Kb2 Nge2 c3 Rb7 c2 Nf4 c1B Nc2 Qg2+ Qf3 f1R Bb6 Qe7 d8R Re1 d7 Ra4 Rf1 h1N Rf2 Ra6 Rd2 Nf2 Ra7 Ra4 Ra6 Nd3 Rf8 Ra1 Rf7 Ra2 Re8 Ra1 d8R Rb1 Bh5 Bg4 Rd6 Ra1 Bg6 Qd8 Bf5 Ne7+ Kd4 Rb1 Rg8 Nec6+ Kd5 Na5 Bc8 Rfe6 Bd7 Qh4 Rf5 Rf6 Rh5 Ra1 Rh7 Nac6 Ra8 Ra6 Ra7 Na5 Ra8 Ra7 a4 Rc7 Ra6 Ra2 Re8 Kb1 Rg8 Ba3 Ne3 Rcc1 Nc2 Qf1 Qg2 Kb2 Qf2 Qe2 Qf1 Qg2+
K2brBRr/n2n2Q1/3bRr2/q1N1pB2/1q3rB1/1b1p1BP1/2P4B/n1k2N2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 a4 Kg6 f4 Kf5 g6 d5 g7 h5 g3 b5 a5 e5 a6 b3 a7 e3+ Kd3 h4 Bd2 h3 Ra4 e2 Ra1 e1B Qc1 b4 Ra4 h2 Be2 b2 Nc3 b1Q Ra2 b3 Ra4 b2 Ra6 Nf6 g8B Nc6 Qd1 Qa5 Nf3 Nd7 Ne4 Bd6 Bh7+ Kg4 Rf1 h1R f5 Rh6 Nc5 Rf6 Be3 Bd2 Bg1 Bg5 Rf2 Bb7 Bh2 Rae8 a8B Na7 Qd2 Qe1 Qc1 b1N Rb6 Bh4 Qh6 Nd2 Qg7+ Bg5 Bd1 Nb3 Rf1 Qeb4 Nd2+ Kh3 Rf4 Kg2 Bg4 Na1 Nf1 Bc6 Re4 Kf2 Rf4+ Ke1 Rb8 Rh6 f6 Ba4 f7 Rf6 f8B Bb3 Bhf5 Bh4 Rf3 Kd1 Rb6 Kc1 Rf4 Bc7 Re6 Bd8 Be2 Be7 Rg4 Bd6 Rg6 Bg5 Beg4 Bh4 Qh7 Bg5 Rg8 Bh4 Qg7 Bg5 Ke2 d3+ Kf3 d4 Ke4 d2 Bd5 d1R Ba8 Ba4 Kd5 d3 Bb7 Re1 Bc6 Re4 Bb7 Nb5 Kc6 Rf4 Ba8 Bb3 Kb7 Qd8 Ka6 Bh4 Baf3 Qda5+ Kb7 Rf7 Na6 Bd8 Ka8 Na7 Nc5 Rf6
1nkr4/R2N3r/n6b/KPrB2RR/3q3n/N1R2p2/1P1q1b1p/QbR2bB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 g4 Kd7 e4 c5 d4 f5 Kd2 h5 Kc3 a5 g5 h3 e5 f3 d5 f4 d6 a4 g6 a3 g7 a2 Qd4 h2 Nd2 h4 Ne2 f2 Ne4 f3 Bd2 h3 Bg2 f1B Bf4 Nh6 g8R Nf5 Rc1 a1N Be3 Rh7 Bg1 Bh6 Rg5 Nc2 Qd1 Nh4 Nd4 Nb4 Nc2 N4a6 Na3 Bb7 e6+ Kc8 Nf6 Be4 e7 Bb1 e8R Rc7 Rg4 Be3 Nd7 Bf2 Re3 Qf6+ Kd2 Qd4+ Rd3 Rc6 Rg5 Rc7 Qb3 Rc6 Qa2 Rc7 Qa1 c3+ Kd1 c2+ Kd2 Qh8 Rc3 c4 Nf8 Rc5 d7+ Kc7 d8R Qd4+ Rd3 Kb7 Rd7+ Kc8 Ra7 Qg7 Nd7 Qd4 Re1 c1B+ Kd1 Ba2 Kc2 c3 Rde3 Bb1+ Kb3 c2 Rc3 Bf4 Ree5 c1Q Rd5 Be2 Bf1 Qcd2 Rde5 Bc4+ Ka4 B4e3 Rh5 Bh6 Ka5 Bcd3 Be2 Bc4 Bd1 Bf1 Reg5 Be1 Be3 Bf2 Rhg1 h1R Bb3 Rh2 Be6 Rg2 Bg8 h2 Bd5 Rg4 Rh1 Rf4 Rhg1 Rf7 Rh1 Rh7 Rhg1 Bc4 Rd1 Bf1 Rc1 Be1 Bg1 Bg3 Be4 Bf2 Bd5 Nc6+ Kb6 Kd8 Rg6 Rc8 Rg2 Ncb8 Ka5 Bc4 Rg6 Bf1 Bb7 Kc7 Rgg5 Rd8 Bd5+ Kc8
2qn1n2/Q4R2/2k1bR1P/q2rr2P/1q1p2NN/2NB1n2/3N1pNB/bqK4b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 f5 h4 d5 a4 Kd7 e4 g5 c4 b5 c5 d3 e5 b3 h6 g4 a5 g3 a6 b4 a7 g2 e6+ Kc6 h5 b2 e7 b3 e8N f3 Nc7 f4 Ne8 f2 Qc2 f3 Nh3 g1N Qc4 Nd7 Nf4 Qa5+ Kd1 d2 Ng2 Bg7 Bd3 f1B Nf6 Ne7 Qd4 Re8 Ng4 Nf8 Nc3 b1Q Ra4 Rb8 a8N b2 Nb6 Be6 Nc4 Rb5 Rh3 f2 Rf3 Bh8 Rf7 Nf3 Ra2 Kc7 Rf6 Nc6 Ra4 Nd8 c6 Qb6 Ra6 Qa5 Rf7+ Re7 Be2 Qf5 Bd3 b1Q Qe3 Qbb4 Qa7+ Kc8 c7 Kd7 Kc2 Be2 Bb2 Bd1+ Kb1 Bb3 Ba1 d1Q+ Kb2 Qh1 Nd2 Qh3 Kc1 Bc2 Be2 Be4 Bd3 Bf6 Qb8 Bh8 c8N Qg6 Nd6 Bf6 Ra7+ Kc6 Nf5 Ng1 Nd1 Qg7 N4e3 Bd7 Ra8 Kc5 Ne1 Bh1 Nh4 Nf3 Ra6 Qg1 N1g2 Re8 Be5 Qf1 Bc7 Ba1 Raf6 d4 Bh2 Re5 Kc2 Qe6 Ng4 Kc6 Nc3 Rbd5 Qa7 Bc8 Rf5 Qd7 Rf4 Qdb7 R4f6+ Be6 Bf5 Qd3+ Kc1 Qc8 Bg6 Qb3 Be4 Qdb5 Bf5 Qb5b4 Bd3 Qb1+
Q3bnb1/6q1/2n2P2/RB1NpB1R/1Bp1qB2/5kN1/P2r1br1/r1q2KbB w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 f4 Kd7 g4 Kd6 d4 Kd5 g6 h5 g5 c5 f5 b5 f6 e5 g7 h4 g6 e3 Qg4 e2 Qf4 h3 Kf2 e1B+ Ke2 h2 Be3 c3 Qf2 Ke4 d5 c4 d6 c2 d7 c1Q Nh3 b3 Qg3 b2 Ng1 b4 Bf4 b3 Bh3 Nc6 Kf1 Qc7 d8B Bc5 Ne2 Bd7 Be7 Be8 Bd7 Bg1 Bb4 Nge7 g8B Rd8 g7 Ng6 Bge6 Nf8 g8B Rh6 Qg5 Rg6 Bf5+ Kf3 Nbc3 b1B Ng3 b2 Bd5+ Be4 Qh6 b1Q Qh8 Qbc2 Rb1 Qa7 Bc8 Qg7 Ba6 Rd7 Bb5 Qd3+ Nge2 Rg2 Rb3 Rd8 Ra3 Rd6 Ra5 Rd7 Bf7 Bd5 Qg8 Qd4 Ng3 Qe4 B7e6 Rd8 Bc8 Be6 Bb7 Rdd2 Qh8 Bg8 Nd5 Bc5 Rg1 h1R Ba8 Rhh2 Rh1 Rd1 Bb7 Rgd2 Ba8 Rhg2 Rh5 Bg1 Qh7 Qg5 Qa7 Qg7 Qb8 Qcc2 Bb7 Ra1 Qa8 Qc1 Bc5 Nb8 Nh1 Qe3 Ba7 Rg5 Bc5 Qd4 Nc3+ Qd5 Bd3 Kg4 Bb4 Qd4 Bg2 Nc6 Nd5 Qe3 Bh3+ Kf3 Bdf5 Rgg2 Ng3 Qe4 Bg6 Rh2 Bg2+ Kg4 Bh1 Rhg2 Bh7 Kf3 Bf5 Bef2#
1Bq5/1Qb1R1q1/1RP4n/1NBq2p1/3B1rkN/4B1r1/K1BPnpbb/2q1r3 w - - 0 1 illegal: No proof kernel
1RQ1R1K1/5B2/r1P1Rrn1/p1P4R/2bp3N/5q2/kNrB1Rbn/2brqn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 dxc5 e6 Bh6 exf5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 d5 Kh5 a5 g4 f5 c4 f3 e4 h3 b4 f4 b5 f2 b6 a3 b7 f3 e5 d4 g5 h2 g6 a2 c6 Ba3 c5 Kd5 g7 Nd7 b8R Qe8+ Kg5 h5 e6 h4 e7 h3 Be2 f1N Qc2 f2 Be3 Ra6 Qg6 Ngf6 g8R Ng4 Bf3+ Kc4 Bg2 Nde5 Nc3 Bc1 Rf8 Be6 Qf5 Ng6 Na4 Bd5 Rab1 a1R Bd2 Rh6 R1b3 Ra2 Re3 Rc2 Qc8 Qf7 e8R Qf3 R3e6 Be4 Ra8 Kb3 Rb8+ Ka2 Nb2 Bd3 Rf5 Bc4 Rf7 Nfe3 Rff8 f1R Rf7 Rd1 Rff6 Qe4 Rf2 Nf1 Nf3 Qe2 Nh4 Qe1 Rg1 h1B Bd5 Be4 Rh1 Ngh2 Kf6 Bg2 Kg7 Ne7 Re5 Rf6 Bf7 Ng6 R8e6 Ng4 Kg8 h2 Rg1 h1Q Rh5 Ngh2 Re8 Bf3 Rg3 Bg2 Rge3 Qe2 R3e7 Qf3 Re6 Qg1 Rfe2 Qge3 Rf2 Qe1
3NbK1n/5r2/2pN1R1n/2bN1nnp/B1R1P3/2B2qPN/QN1q1r2/3r1b1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ Kg3 d4 h5 b4 f5 b6 a5 b5 c3 d5 h3 d6 c2 d7 h2 Ke6 a4 Kf7 a3 b7 f3 b6 f2 Ba6 f1Q Nh3 f4 Be2 f3 Bd3 f2 Bb2 c1N Qb3 c6 Rg1 h1N Bf6 Kh2 Bb2 a2 Nd2 Bc5 Bb5 Ne2 Ba4 Na6 b8N Nhg3 b7 Nc7 Nc4 Ra7 Na6 Ne6 b8N N2f4 Nb4 Ng6 Rc1 a1R Qa2 Ng5+ Kg7 Qd3 Rgf1 Nh6 N8a6 Rf8 Nc7 Nh8 Nb5 Qb3 Rc2 Rd1 Bd4 Qa5 Nd5 Qd2 Nb2 Rf6 Nd6 Rb7 Ng1 Kh1 Rc4 Qbe3 Bc3 Rf3 Nf7 Rc7 d8N Bd7 Nd6 Be8+ N8f7 Re7 Kf8 Rf5 Re1 Qee2 Nh3+ Qf1 Re3 Qfe2 Rf3 f1B Re3 Rf2 Rf3 Rc7 Rf6 Ngf5 g3 Qf3 Nd8 Rf7+
r2q1r1k/1b1qB1n1/Pp1N1R1q/2P5/2RnpK1Q/1n1rR2B/2Nb2R1/4r1R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 c4 Kg7 a4 d5 g4 h5 f4 e5 g5 b3 g6 e4 a5 b2 a6 b6 c5 d3 Ke3 h3 Qe1 h4 Ne2 h2 Ra5 d2 Ng3 d1R Bh3 Nf6 Ra4 Nh5 Rc4 Nc6 Na3 b1N Nc2 Bb7 Rg1 h1R f6+ Kg8 g7 Nd4 f5 Nd2 Bb2 N2b3 f7+ Kh7 g8R Ng7 f6 Rd3+ Kf4 Be7 Bg2 h3 f8R h2 f7 Bh4 Nf5 Bg5+ Kg4 Bd2 Bh3 Qd7 Rg2 Qd8 Nd6 Rg1 Qf2 h1Q Qg3 Re1 Qh4+ Nh5 Rg5 Qh2 Rfg8 Qh1 R8g6 Rf8 Rf6 Kh8 Rf3 Qh2 Re3 Qh1 Qf2 Ng7 Kf4 Nf3 Bf6 d4 Be7 Qd7 Be6 Qh6 Qh4 Rc3 Nf5 d3 Nd6 Nfd4 Bf5 Bc1 Be6 d2 Bh3 d1Q Rg1 Rd3 Rg2 Rg8 f8R Bd2 Rf6 Rgf8 Rg1 Qdh5 Rg2 Qhe8 Rg1 Qec8 Rg2 Qcd8 Rg1 Qh5 R5g2 Qh6+
1r3B1N/k2B2nP/q1p1qbq1/1Q1B2rb/4q2R/2pN1b1B/3KP2r/1nB1R3 w - - 0 1 illegal: No possible last move
1Q6/1N1N3p/1RB1b1rR/Nnq1Nqn1/P2rP1p1/r1k1b2n/2N1q2B/K3n3 w - - 0 1 illegal: No proof kernel
RK1k2rB/3rNp1N/2R1r3/3q2q1/1b3qb1/np1n1PQR/2P2R1b/rR4B1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b5 Nh6 b7 Ng8 b6 Qd3 Be2 Qd8 Bb5 cxb5 Ke2 e5 Ke3 a5 d4 h5 g4 b4 d5 a4 g5 h3 d6 b3 g6 a3 g7 a2 Ba3 h2 Qf3 h4 Nh3 Nh6 g8R Ra7 Bb4 Nf5+ Ke2 e3 Kd3 e2 Ke4 e1R+ Kd5 e4 Rg6 e3 Ng5 e2 Bc5 h3 Nc3 Na6 Kc6 Ne3 b8B Rg8 b7 Nc4 Rb1 a1R Qg3 Bg4 Nh7 Na3 Nd5 Qg5 d7+ Kd8 Be5 Bd6 Ne7 Nb4+ Kb6 Bb8 Rc6 Nd3 Bh8 Be5 Rf1 h1Q f3 h2 Bf2 Qg2 Bc5 h1Q Bg1 Qhh4 Rf2 Qf4 Nc8 Qf1 b8R Qhg5 Ra8 Bb8 Ne7 Qh3 Rh2 Qhh5 Rh3 Qd5 Rh6 Qhg5 Rc6 Ra6+ Kb7 Rd1 Rh2 e1B Rf2 Qa5 Rh6 Qac5 Rh3 Re6 Ra6 Bb4 Ka8 Kc7 d8R Qa5 Rd6 Qad5+ Rdc6+ Kd8 Kb7 Bc7 Ra8+ Bb8 Nf8 Qfd4 Rh4 Qd5e5 Qg2 Ne1 Rh2 Qdc5 Rh3 Rd7+ Rc7 Nd3 Nh7 Ke8 Kc8 Qcd5 Rc6 B8d6 Qh2 Qed4 Qg2 Bh2 Qg3 Q4e4 Kb8 Kd8 Ra7 Qee3 Ra8 Qef4+
BBN2qN1/n4p2/2bB4/3PQ3/qr4Kp/n1nbbP2/1kq2BR1/1n1R2rB w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 Qd2 dxc4 d5 Be7 Qc3 Bf8 Qd4 exd4 g4 Kd7 e4 Kd6 Ke2 Ke5 Kf3 h5 b4 a5 g5 c5 g6 a4 b6 a3 b5 c3 g7 a2 b7 c2 b6 h3 Bb2 c1Q Bb5 h4 Be2 h2 Ba3 c4 Nc3 d3 Bd1 Kd4 e5 d2 e6 Nf6 g8Q Bc5 e7 Nc6 b8B Ra4 e8B Bd7 b7 Rb4 Qh7 Ne4 Qg6 Rg8 Qe6 Qc2 Bg3 Qa4 b8B Na7 Nh3 Bc6 Rg1 h1B+ Rg2 Qc8 Be2 d1N Ng5 Nd2+ Kg4 Nb1 Ne4 c3 Bf3 c2 Nd6 Kc3+ Be4 Qd8 Nc8 c1Q Qe5+ Bd4 Bd7 Qf8 Be8 Qcc2 Bf3 Rb7 Bad6 Kb2 Bd7 Ndc3 Be4 Nd2 Rd1 a1N Be8 Be3 Bd7 Rh8 Nh7 Rb4 Nf6 Nb1 Ng8 Rh7 Rgg1 Bg2 Be8 Bf1 Rg2 Bd3 Bd7 Bcb5 Bc6 Rh6 Ba8 Bc6 Rh1 Nb3 Rd1 Na5 Rh2 Nc4 Bh1 Rf6 f3 Re6 Bf2 Rg6+ Kh3 Rg1 Rg2 Bd2 Kg4 Nca3+ Kh3 Bf4 Kg4 Be3+
Q1Bqb1Nr/1P1BK2R/2r2r2/1b2P3/3pNBn1/2r3b1/1pk3q1/1nB1RnB1 w - - 0 1 illegal: No proof kernel
2bq1n2/p5n1/rn3pr1/1n1r1NqP/1KB1QB2/1B1P3k/1NRR1b2/1B2Bq2 w - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 fxe5 h6 Qc2 hxg5 Qd1 g4 h4 Kd7 e4 Ke6 b4 c5 h5 g5 d3 f6 Kd2 c3+ Kc2 a3 Kb3 a2 b5 c4+ Ka4 g3 b6 g2 b7 c2 Rh2 c3 Be2 g4 Nd2 g3 Rh4 Nd7 b8B Ne7 Rh2 Rh6 Nc4 Ng6 Bf4 c1Q Nb2 c2 Nf3 g1Q Nh4 g2 Qe1 Bc5 Bd1 Ngf8 Nf5 Bf2 Kb4 Qf1 Bc7 g1N Ba5 Qe3 Rc1 a1R Qe2 Nh3 Qg4 Be1+ Rd2 Rg6 Qg2 Nb6 Qe2 Ng5 Qg4 Kf7 e6+ Kg8 e5 Kh7 e7 Bf2 e8B Nge6 Bb5 Ng7 e6 Rb8 Bh2 Qg5 e7 Rb7 e8B Rd7 Qf4 Rd5 Bc4 Ra3 Qe4 Ra2 Ne7 Kh6 Bf7 Ra1 Bf4 Ra3 Ra1 c1N Ra2 Nb3 Bc2 Nd4 Bb1 Nb5 Bb3 Rf5 Bfc4 Rd5 Bd6 Qe5 Rc2 Kg5 Nf5 Qg3 Bf4+ Kg4 Rd2 Kh3 Nd1 Qgg2 Rac2 Qg5 Nb2 Na8 Bb6 Ra6 Bc5 Be1 Bf2 Nb6 Bh4 Bf2 Bhg3 Be3 Be1 Bf2
4Rr2/2r4R/2rN1K2/n1r1p1r1/2BBQP2/p3P2b/Br3Nb1/qBkn2nB w - - 0 1 illegal: No proof kernel
NQR2n2/3bk3/qr6/P1pb3n/4rp2/1RPRR1B1/b2KB1rr/r1N1r2R w - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 g4 dxe4 h4 a5 g5 Bh6 g6 Bg5 hxg5 axb4 a4 h5 d4 e5 a5 c5 c3 f5 g7 b5 g6 b3 d5 b4 d6 b2 d7+ Ke7 Bd3 h4 Na3 b1R Be3 h3 Be2 f3 Nb5 f4 Kd2 h2 Nc7 f2 Qc2 f1R Nh3 b3 Qa2 b2 Bd4 e3+ Kc2 e4 Bf3 e2 Qb3 e1R Be2 e3 Ng1 Nf6 g8R Nh5 g7 Ra6 Ne8 Rf2 Ra3 Rg2 Nc7 Ra1 Na8 Qb6 d8R Bd7 Rc8 Qd6 Rgd8 Rb6 g8R Qe6 Rg3 b1B+ Kb2 Ba2 Kc2 Qc4 Qb4 Qa6 Rb3 Bg4 Rd5 Nd7 Rf3 Nf8 Bf6+ Kf7 Bh4 Bd7 Bg3 Ke7 Rd3 Rhh6 Nh3 Rh8 Nf2 Rhh6 Bf1 e2 Kd2 Rbe6 Qb8 Rb6 Rg1 h1B Rde3+ Rhe6 Nd3 Re4 Nc1 Rh2 Rd3 Rg2 Rfe3 Rd1+ Kc2 e1R+ Be2 Rh2 Rf1 Bf3 Rh1 Rg1 Ra3 Rgg2 Rb3 Re1 Kd2 Re5 Qb7 Bd5 Qb8 Re4
b4N2/1Q2K2P/R3B3/1n1pPB1R/7b/pNbnr3/BkqbBn1r/1b2b1B1 w - - 0 1 illegal: No proof kernel
B1B1R1N1/B2PNKb1/n4PR1/1rrnb1q1/3n4/Q3p1Bb/1b2bb1p/5Bk1 w - - 0 1 illegal: No proof kernel
2R4r/1NPBB2N/Q1BbB1n1/1rRb3n/3pnrPp/n1qBn1k1/8/1n5K w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kf2 Ke7 a4 Kd6 c4 Ke5 g4 h5 Kg2 d5 e4 b5 c5 f5 c6 b3 c7 b4 g6 b2 a5 d3 g7 f3+ Kh2 f2 a6 b3 a7 d2 Bh3 Kf4 e5 f1N+ Kg2 h4 e6 Na6 e7 Ng3 e8B Be6 Rh2 Qf6 Qe2 Qc3 Bd7 d4 Nf3 Bd5 Na3 b1N Nb5 b2 Nd6 Nc5 Nb7 Na3 Qa6 Ne7 g8B b1N Bge6 Nh5 Kh1 Ng6 Bf1 Kg3 Bd3 d1N Rc2 Rb8 a8B Bd6 Bg5 f4 Be7 Ne4 Ng5 f3 Nh7 f2 Raa2 Ne3 Rab2 Bc4 Rb5 Ba2 Rf5 Bd5 Rf8 Bc6 Rc8 Bd5 Nd8 Rb5 Bac6 Kf4 Nb7 f1R+ Kh2 Rf2+ Kh1 Kg3 Rc1 Rf4 Rc2 Qa1 Rc5 Qc3
4B1B1/PBk1pp2/1R1n1b2/1nbr2Rq/2K3Q1/3BP1N1/nN1rB3/n2n1bn1 w - - 0 1 illegal: No proof kernel
5R2/P1pb1B1N/4B3/1n3rqb/2r1N1k1/1bPn1NNR/3pr3/KNbb2bQ w - - 0 1 legal: proof: f4 a5 g4 g5 b4 axb4 d4 e5 dxe5 h6 Be3 Ra6 Bf2 Ra3 Bh4 gxf4 g5 Ra5 g6 Ra8 Bg5 hxg5 Kd2 Ke7 Kc1 Ke6 Kb2 Kf5 a4 b5 h4 d5 a5 g4 h5 g3 e3 g2 h6 d4 h7 b3 g7 b4 e6 d3 a6 f3 c3 d2 a7 f2 e7 Bd7 e8N Nh6 g8B Qg5 Rh5 Nc6 Nf6 Ne5 Qc1 Re8 Bb5 f1B Ng4 Bc4 Ne2 g1B Ra5 Nd3+ Ka1 f6 Ne5 Nf7 Ba4 Nd6 Rd5 Nb5 Nf3+ Kg4 e4 f5 e5 f4 Nh4 f3 e6 f2 e7 f1R Bf7 Rf5 Nf3 Rg8 h8N Rg6 Rh1 Rc6 Rc5 Bce6 Re5 Rc4 Ng6 Bd5 Rh3 b2+ Ka2 B5e6 Bb3 Bd5 Ng3 B5e6 Na3 b1B+ Ka1 Bc2 Nb1 Bd1 Re2 Bd5 Rf2 B5e6 Ba2 b3 Rf1 Rc8 e8N Ba3 Nd6 Re8 Nf8 Bd5 Qb2 Re2 Nh7 B5e6 Qc2 Bc1 Nde4 Bd5 Bg8 Bf7 Qb2 Bg6 Be6 Bh5 Qa3 Bc5 Qa6 Bg1 Qc6 Re3 Nh4 Rb4 Bd5 Bf3 Nd6 Bd1 Na3 Rfe5 Rf8 Rf5 Bf7 Re2 Qh1 Rd4 Nde4 b2+ Kb1 Ra4 Bae6 Rc4 Ka2 b1B+ Ka1 Bbc2 Nb1 Ba4 Nf3 Bab3
1r4nR/RB1p1nB1/1B2n2b/2P3n1/Pr1B2r1/1b1q2rk/pKQN3N/5n1B w - - 0 1 illegal: No proof kernel
kbNR3N/Np6/Nn1b4/b2r2pr/1Pb1bQ2/2PqKn1B/4Rr2/4Nr1B w - - 0 1 legal: proof: g4 c5 e4 h5 d4 hxg4 dxc5 a5 b3 f5 Bd3 fxe4 Be2 a4 Bb2 a3 Bf1 axb2 Ke2 e5 h4 d5 a4 Kd7 f4 Kc7 a5 g5 a6 d4 c6 e3 h5 e4 f5 g3 a7 g2 f6 Bd6 f7 Nf6 f8N Ng4 h6 Nd7 h7 Nh2 Nc3 b1B Qd2 Nf3 Ra2 Nb6 Ng6 Be6 Ne7 Bg8 Nc8 Bc4+ Qd3 Rf8 h8N Rf7 Rb2 Rh7 Rh4 Rh5 Rf4 Qd7 Rf8 Rb8 Rd8 Qh7 Nh3 g1B Bg2 Bgh2 Nf2 Qd7 Bh1 Ra8 Kf1 e2+ Kg2 e1R Qf1 e3 Nd3 e2 Kf2 Rd1 Ne1 d3 Ke3 d2 Qf2 Rc1 Qg3 d1R Qf4 Rd5 b4 Rcd1 Ng2 Rf1 Ne1 Rb8 Ne4 Qf5 c3 Bc2 Nc5 Be4 Ng2 e1B Re2 Beg3 Ne1 Qg6 Ne7 Rc8 a8N+ Kb8 c7+ Ka7 Na6 Rb8 c8B Bc7 Qh4 Bgd6 Bh3 Qf5 Qf4 Bg3 Rd7 Rf8 Rd8 Bb8 N8c7 Rf7 Ne8 Ka8 Nc6 Rf2 Na7 Bc7 Qg4 Bgd6 Qf4 Rf1 Ng7 Bc2 Rf8 Nc8 Qg3 Nh2 Rd8 Ba5 Qf3 Nb6 Qg4 Qg6 Nf5 Rf8 Ne7 R8f2 Qe4 Nf3 Nec8 Bb1 Qf4 Qc2 Qh2 Qd1 Qe5 Be4 Qf4 Qd3+
n3qNR1/pp1R1r2/7r/b1R3bq/q2RqP2/k3q1Q1/P2B2BK/2qnR2N w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 c5 Ke1 cxb4 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 f4 Kd7 d4 Kd6 c4 e5 g5 h5 g6 e3 g7 b3 d5 Kc5 d6 Kb4 d7 e4 c5 h4 c6 e2 c7 h3 c8R h2 Rc5 b2 Ra5 Na6 Rd5 Nf6 g8R Rh6 Ra5 Nc7 Rag5 Ng4 Be3 Nf2 Rf5 Be7 Na3 b1Q Re5 Qc2 Rf8 Qa4 Nh3 g1Q Nb5 g2 Nd4 Ka3 Rg8 Rb8 Ra5 Na8 Rc5 Rc8 Rb1 Rc7 Ne6 Qe8 d8R Bf6 Rd6 Rf7 Nf8 Bd8 Rb4 Ba5 Kd2 e1B+ Ke2 Rf5 Rd7 Rf7 Bd2 e3 Kf3 e2 Kg3 Nd3+ Kg4 Nb2 Re4 Qgd4 Qc1 g1Q+ Bg2 Qge3 Nf2 Qdb4 Rg1 h1Q Qd1 Qh2 Nh1 Bg3 Rf1 e1Q Qf3 Qc1 Re1 Nd1 Qf2 Qbb1 Red4 Qbe4 Qf3 Bh4 Qg3 Bhd8 Qf3 Qh5+ Kg3 Bh4+ Kh2 Ra6 Qf2 Rh6 Qg3 Bg5+
2n1RKBk/br3b1B/2r1b1b1/3P2r1/p1npqN2/4BQrP/5B2/Rn1B3N w - - 0 1 illegal: No proof kernel
4rR1b/n2K3k/r1B1bp1P/NPp3B1/N1n2B2/5n1q/B5b1/B1Q1rbRn w - - 0 1 illegal: No possible last move, all moves rejected
k4n1Q/2P2R1B/B1N4n/1Rrnb1K1/p3nrP1/1N1b1b1B/5Bpb/3B1r1q w - - 0 1 illegal: No proof kernel
1krRQ3/2p1NR2/n1BP4/bb3nrp/2P1RB1N/q1Rnn3/1r2R3/b1b1K3 w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 d4 Kd7 g4 a5 c4 h5 b4 e5 b6 f5 d5 h3 b7 f4 b5 a4 g5 f2+ Kd2 h2 d6 f3 g6 a3 g7 a2 b6 e4 Nh3 e3+ Kc2 e2 Kd2 Na6 b8R Ne7 g8R Bh6+ Nf4 Nf5 Bg2 f1N+ Ke1 N1e3 Rf1 h1N b7 Nf2 Rg3 Rg8 Nc3 Rg5 Ncd5 Qe7 Rb1 a1B Ng6 Qf8 Rb2 Nd3+ Kd2 f2 Qa4+ Kd8 Nh4 e1B+ Ke2 Qg7 Ne7 Qc3 Bc6 Qa3 Rg4 Ba5 Re4 Nd1 Bf4 Nde3 Rc1 f1R Rc3 Rb1 Rbc2 Ra7 Ra8 Rb2 b8R Rab7 Kd2 R7b4 Rb5 R4b3 Rbe5 Rb8 Re6 Bd7 Rf6 Rc8 Qb5 Ndb4 Ke1 Be8 Re2 Bd7 Qe5 Be8 Ba4 Bb5 Rf7 Kd7 Ng8+ Kc6 Qe8+ Kb7 Ne7 Rd8 Qf8 Ned5 Bg3 Nd3+ Kd1 Rg6 Be1 Be8 Bg3 Bc1 Bf4 Rg5 Rc8 Bc6 Qe8 Bd7 Bc6+ Ka7 Bb7 Bb5 Bc6 Ndc5 Qh8 Nde3+ Ke1 Re8 Rd8 Reg8 Rd7 Rc8 Qe8 Kb8 Rd8 Nd3#
q4Rr1/rB2qKRn/1q1RN1Nk/P1b3R1/b3p3/p4R2/1rP1q3/Qn2B2r w - - 0 1 illegal: No proof kernel
4bk2/2q1R3/5nnp/rB1rP2K/PNB5/1BbNB3/2pnQnq1/3bb1BR w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 c5 Kf3 b5 a4 f5 g4 h6 d4 c3 e4 b3 d5 b4 d6 b2 e5 c2 g6 b3 g5 c4 g7 c3 g6 Nd7 Bg2 Ngf6 g8B Ra5 g7 Qc7 Na3 b1B Bh7 b2 Bd2 c1B g8B Bc2 Nc4 b1N Qf1 Bb2 Ne2 Bd1 Qe1 c2 Nb6 Bc3 Be3 Nd2+ Kf2 f3 Kg3 f2 Kh4 f1Q Nf4 Qe2 Rb1 Nde4 Bc4 Nf2 Nd3 f4 Bhg8 f3 Nd5 Bb7 Rb5 Bc6 Bf1 Be7 Rb4 Nf8 Rb7 Qd2 N5b4 Ng6+ Kg3 Bd7 Qe2 Kf8 Bgf7 Be8 d7 Rh7 d8B Bd6 Bfd5 Rd7 Bb3 Be7 Bdc4 Rdd5 Ra7 Qb7 Bdb6 Qc7 Bh3 Bd6 Bd7 Bc5 Bdb5 B5d4 Qe1 Qe2 Qf1 Be1 Rb7 Qd2 Qe2 Bc3 Ra7 N2e4+ Kh3 f2 Rb7 f1N Ba7 Qb8 Re7 Qc7 Bg1 Qg5 Bad4 Nfd2 Bde3 Qf4 Ba2 Qf2 Bab3 Ng8 Kg4 Qg2+ Kh5 Nf2 Bc5 Ra6 Bb6 Ra5 Be3 Nf6+
3b1Q2/nqb2bB1/1P1RnNn1/b3B3/r1RBr3/1p2pPq1/nBK5/1B2Nk2 w - - 0 1 illegal: No possible last move, all moves rejected
2Nr2rk/1P1b1p2/n3Qp2/P1rr2R1/qn1b1R2/b3RRBq/2R1B1Nb/K7 w - - 0 1 illegal: No proof kernel
1n1b1q1Q/p1R1rP2/bKnNR2R/Rb1qq3/2b1bq2/Pp2B3/2k1NR2/5B2 w - - 0 1 illegal: Other
nBb1BbKR/1n6/1k3prQ/2n2Pq1/1B1B1nq1/1pb1Rq2/N2B1P2/6qN w - - 0 1 illegal: No proof kernel
kn1B1n2/3NpBb1/nKb1N1BQ/B1b3Rp/4P3/B1R1P2q/1r3nbb/b7 w - - 0 1 legal: proof: c4 d5 a4 dxc4 h4 g5 Qb3 gxh4 Qc2 a5 Qd1 Ra6 e3 Re6 f3 Re4 fxe4 b5 Rh3 bxa4 Rh2 Bb7 Rh1 Bc8 Ke2 Kd7 g4 Kc6 d4 Kb7 b4 h5 g5 f5 b5 c5 d5 a3 g6 a4 b6 h3 d6 a2 d7 f4 g7 f3+ Kf2 h2 Qd6 a3 Qg3 c3 Bd3 c2 Qg6 c4 Bf1 c3 Qg3 Nf6 g8B Bg7 Bb5 Ka8 Qg5 Nh7 Ne2 Nf8 Rg1 Bb7 Nd4 Bc6 Ne6 Qc8 d8B h1N+ Ke1 f2+ Ke2 Be5 Kd3 Bh2 Kd4 f1B Kc5 Nf2 Bf7 Bg2 Nd2 Rg8 Bb2 c1N Qh6 c2 Nf3 Rg3 Rb1 a1B Ne5 Na2 Rbc1 Nb4 Nd7 a2 Ba3 Bg7 Bg6 a1B Bc4 Bb7+ Kb5 N4a6 Ka5 Bc6 b7+ Ka7 Rcd1 c1B Rd3 Rh3 Rc3 Bd2 Bd5 Bh1 Rg5 Bg2 Nec5 Rf3 Bg8 Rf6 B8f7 Rd6 Ne6 Be1 Rf5 Rd2 Rg5 Rb2 Nf6 Nbd7 b8B+ Ka8 Bbc7 Ndb8 Nd7 Bd2 Bcd6 Be1 Bdb4 Bd2 Kb6 Be1 Rb3 Bec3 Ba5 Bb4 Ne5 Qd7 Rc3 Qc8 Nc5 Qf5 Ned7 Qh3 Ne6 Bc5#
B2q1b2/bR5N/r3pn1p/1P3RnP/1B1qrB1r/K4B2/1nk2B1p/Q4q1N w - - 0 1 illegal: No proof kernel
3N1q1N/5b2/RRpq1BrP/NrnNrb2/1K3P1p/Q4nb1/4N1p1/q2k3B w - - 0 1 illegal: No possible last move
3q3R/3Bb2b/qP2pB2/k1r1Rr2/P2n1p2/N2nrnBK/B2p2BN/Q5b1 w - - 0 1 illegal: No proof kernel
2K1B3/1QpB3b/1B1B1n2/brp1rNNR/q2P1Bnn/1p2P2r/1k3q1R/1q6 w - - 0 1 legal: proof: f4 a5 g4 e5 c4 exf4 b4 axb4 c5 h5 c6 dxc6 gxh5 c5 Kf2 Ke7 Kf3 Kf6 Ke4 b5 h4 g5 a4 g4 d3 g3 h6 f3 a5 g2 h7 f2 a6 b3 a7 b2 h5 b4 h6 b3 Rh5 Nd7 Kd5 Rb8 Kc6 Bg7 a8B Rb5 Nd2 b1Q Nc4 Qe8 Nh3 g1N Ra2 Nf3 Ne3 Nh4 Ng5 Ke5 Bh3 Kd4 Nf5+ Kc3 Bf4 f1Q e3 Qf2 Qh1 Ngf6 Qd5 Qe4 Bg4 Re8 h8B Re5 h7 Qa4 Bh3 Ng4 Qe4 Qfg1 Rh2 Qf2 Qh1 Bf6 Bg7 Kc2 h8B Kb2 Bf8 Bg7 Bb7 Ndf6 Bd6 Be6 Bc8 Bc4 Bd7 Be6 Ng3 Bf5 Be8 Bh7 Qf3 Ne4 Kd7 f5 Kc8 Nef6 Nf7 Re6 Qb7 Re5 Bh6 f4 Nf5 f3 Bf4 Qg2 Ng5 f2 Bg3 f1R d4 Rh1 Be1 Qf2 Ba5 Bf8 Bb6 Be7 Bg2 Bd8 Bgc6 Be7 Rg2 Rh3 Bcd7 Bf8 Rh2 Bh6 Ne6 Bf4 Ng5 Bg3 Bg7 Qg2 Bh6 Be1 Ne4 Qgc2 Bf4 Ba5 Ng5 Qf2
1nq1qR1N/1P1n1b1N/rB2p1Bk/q1p1R3/Pp2K1Q1/1Rb3n1/8/Rr2R1r1 w - - 0 1 illegal: No proof kernel
KBk2Br1/1pN1PbB1/n2QPr2/pq2nqbR/1r4qB/1N3B2/2np2R1/8 w - - 0 1 illegal: No proof kernel
1Rb1bbrn/3R1n2/pn3N2/NPpQ3B/6PB/1N1n2Kp/nNq2N2/4k1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 e4 Ke5 b4 Kd4 e5 f5 d3 c5 e6 h5 b6 f3 b7 c3 e7 h3 e8N c2 Qe1 f4 Nc7 h2 Nd2 Kc3 d4 h4 d5 a6 d6 Nh6 d7 Nf7 Qe6 Nc6 b8N Ne7 Nb3 Ng6 Be3 c1N Bb5 Na2 Ne8 Kc2 Bc1 Kd1 Nd6 Rh5 Qf5 Ngh8 Nc4 Qa5 d8N Qa4 Qe4 Re5 Qb7 Re1 Nh3 Rg1 Nd7 Rb8 Nc6 Ra8 Nbd2 Qc2 Rb1 Rb8 N6a5 Ra8 Ng5 h3 Nf6 Re1 Qe4 Bd7 Qb7 Bg7 Ne6 Nh6 Rb3 Rg8 Ng5 Bc8 Qc6 Bf8 Rf1 h1N+ Kg1 f2+ Kh2 f3 Nge4 Ke2 Qa8 Kd1 Be8 Ke2 Rg1 f1B Bh5 f2 Nb2 N6f7 Rgg3 Bg2 Rgd3 Rg1 Rd8 Bf1 Qd5 Ke1 Rd6 Bb5 Rd8 Be8 Rd7 Ne5 Nf3+ Kf1 Bg5 Nef7 Nfd2+ Ke1 Bh4 Ng3 Ra3 Ne2 Ra4 Nf4 Ndb3 Rf1 Kg3 Nd3 Nac4 Rh1 Ra5 Rf1 Rb5 Rh1 Rb8 f1N+ Kf3+ Nf2 b5 Ne3 Kf4 Rg1 Nca5 Nc4 Kf3 Nb6 Kf4 Rh1 Kg3 Nd3 Nf2 Rg1+
1B1bK1R1/2Bn2p1/1r3pb1/RBr1n2B/Pnb1Pq1b/6N1/1k4p1/1b1Q1N1B w - - 0 1 illegal: No proof kernel
b4k1N/r2P4/rBr2n1N/1pP2n2/4p1Q1/K5Rq/Bnp1R1B1/b1n1Bn1B w - - 0 1 illegal: No proof kernel
7r/PbK1QN1r/N4B1B/1R1pn1q1/pNk5/PNr1rp1n/3n4/1rbNR3 w - - 0 1 illegal: No proof kernel
NnR2q2/2r2k2/2r3nP/5nbK/p1pn3Q/B1P1N2R/R1pbRb2/3rR2B w - - 0 1 illegal: No proof kernel
4B1rk/n1R1Bq1p/2B1q1q1/r1q1PN1B/4p1p1/1n6/b1R2PB1/1N2bqQK w - - 0 1 illegal: No proof kernel
1n1b1K2/1r1kNR2/q2b2q1/1br3nR/1BN1p2P/6Qp/r3R1Pp/1RRb3B w - - 0 1 illegal: Other
2b2r1b/1K1R4/1b1p3Q/pR3rqP/k2N1nNr/q1R2nRp/1PrB4/6RB w - - 0 1 illegal: No possible last move
1nr1b1n1/K4r1p/N3p2Q/BN1NNkb1/5Pq1/5B1p/1q3b1P/1Rr2RNb w - - 0 1 illegal: No possible last move
3K2k1/4n1p1/pr1RbqR1/1Bp1P3/1b5n/2rqqPBR/1rRN1RQ1/2N2q2 w - - 0 1 illegal: No proof kernel
QnK4q/1r2P3/p2B2r1/Bqb1P1N1/p1k5/1pB1qR1N/B3b3/BRb3bn w - - 0 1 illegal: No proof kernel
B3R2N/rbKprp2/1qB2n2/q2PN2n/Qb5B/R3n3/P1p5/BqkB1q2 w - - 0 1 illegal: No possible last move, all moves rejected
5Nqb/1RP2bB1/3N2PQ/p1r3B1/3bp3/Kn1kbq1B/RBn1qp2/2r3B1 w - - 0 1 illegal: No proof kernel
1B2R3/rpbK4/Q3RNq1/nrqBP2R/1pR2Rn1/p1r1N2n/r2k1P2/3b4 w - - 0 1 illegal: No proof kernel
3R3N/PnbB1r2/1NQ1N2p/1N1bKb2/4p3/2B1rbN1/qPqp1nk1/1r1R4 w - - 0 1 illegal: No proof kernel
1N1R4/P1N1p1b1/2r4r/1nrrq1Qb/1nkq3K/5BNp/PB2p3/1R2NN1q w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 gxh4 Bc4 c5 Bf1 cxd4 g4 Kf7 c4 Ke6 f4 d5 Kf2 h5 c5 b5 g5 h3 Kg3 b4 g6 e3 a6 e2 c6 d3 a7 h4+ Kg4 d2 g7 d4 c7 Kd5+ f5 h2 Qa4 d1R Nd2 d3 Ba3 b3 Bb2 h3 Rb1 Nh6+ Kh4 Rc1 g8N Nf7+ Nh6 Nc6 f6 Bg4 c8N Nd6 f7 Rc5 Qa5 Nb5 Ngf3 Bg7 f8N Nb4 Nd7 Bh5 Nf5 Rh6 Ncd6 Rac8 Ne8 R8c6 Ng3 Qb8 Ne1 Qe5 Rg1 h1Q Rg2 Qg1 Nb8 Qh1 Rf2 Qg1 Rf8 Qgd4+ Nde4 d2 Nc7+ Kc4 Bg2 d1R Bf3 Rd3 Nf1 Rd1 Bc3 b2 Rd8 Qg1 Neg3 Rdd5 Rd1 b1Q Bb2 Qd3 Ra1 Qh1 Rb1 Nc2 Qd2 Nb4 Qg5 Qdd4+
R1Q1bbn1/2b2P2/1n2R2B/3BBKbp/2N2B1r/pPb2b1q/2B1p1N1/r5k1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 b3 a5 g5 c5 f3 h3 g6 e5+ Kg3 c3 f4 c4 f5 e3 Kg4 a4 g7 e4 b6 e2 b7 e1B Na3 c2 Bd3 h2 Nh3 c3 Nc4 e3 Nf4 e2 Ng2 Nd7 b8B Nb6 Bf4 Bd7 Bh6 Bb5 f6 Be8 Kf5 Qc7 Bb2 c1B Bc2 Qg3 d3 Bg5 Qc1 Bed2 Rg1 h1B Rd1 Kd5 d4 Bgf4 Rf1 Bc7 Rf4 Ra6 Re4 Bg5 Re6 Ra5 Qf4 Qh3+ Qg4 Ra7 Bc1 Ra8 Bf4 Ra6 Bb1 c2 Ra2 c1B Bc2 Bd2 Ra3 Bfd6 Ra2 Bc3 Ra1 Kc6 d5+ Kc5 Ra3 Be7 d6 Kd4 d7 Bf8 d8B Ra8 f7 Ra7 Be4 Ra6 Bd5 Kd3 Bf6 Ra8 Nh4 Bf3 B6e5 Ra6 Ng2 Ra8 Nce3 Kd2 Nc4+ Kd1 Nge3+ Ke1 Ng2+ Kf1 Ra2 Nf6 g8B Kg1 Bg7 h5 Bh7 Rg8 Bh6 a3 Rd2 Ra4 Rd3 Rg6 Re3 Nbd7 Ra6 Ng8 Ra8 Rg7 Ke6 Nb6 Bc2 Rg6+ Kf5 Rd6 Bb7 Rd4 Bd5 Rb4 Kg6 Rd1 Qc8 Qh1 Kf5 Ra1 Beg7 Ra4 Re6 Qh4 Bge5 Rb4 Nce3 Re4 Nc4 Qg3 Bd2 Rh4 Bdf4 Qh3+
Nq2B2r/Q1P1rp2/1RP2B2/7b/b1Bbp1B1/b1k1pN1b/1n1b4/K1B2Rn1 w - - 0 1 illegal: No proof kernel
2rQ2R1/1R1PR1N1/1bp1B2b/1R2npb1/1n4bk/B1pqR3/2b1nPK1/2Nq4 w - - 0 1 legal: proof: c4 b5 e4 a5 d4 h5 g4 hxg4 d5 Ra6 b4 axb4 c5 Rd6 c6 dxc6 e5 c5 exd6 c4 a4 e5 h4 g5 a5 c3 h5 b3 d7+ Ke7 h6 Kf6 d6 e4 a6 c6 a7 b2 a8R b4 h7 b3 Bd3 g3 Kf1 g4 Na3 b1B Nc4 e3 Bf5 Kg5 Bb2 e2+ Kg2 e1B Nh3+ Kh4 Bd3 Nh6 Ne5 Bd2 Ba6 Bg5 Rf1 Bc2 Ba3 b2 Nd3 b1Q Bc4 Na6 Ra7 Nb4 Be6 f6 Qd2 Qd1 Nc1 Nf7 Nf4 Bfh6 Nh5 Ne5 Ng7 Rf8 h8R Rg8 Kg1 g2 Re1 Rf8 Kh2 g1B+ Kg2 g3 Rb1 Bh2 Rh7 Rg8 Qd5 Rh8 Rb7 Re8 Re2 Qd3 Kf1 g2+ Ke1 f5 Qa5 g1N Nh5 Nef3+ Kf1 Qe7 d8R Bd7 Qb6 Na6 Rb5 Nb4 Rdb8 Bhf4 Qc7 Be3 Bg8 Bb6 Kg2 Rd8 Rc8 Be8 d7 Qd1 Rf7 Qe3 Ng7 Qed3 Re3 Ne2 Rfe7 Ne5 Be6 Bh5 Qb8 Bg4 Qa8 Rf8 Rd8 Rf7 Rg8 Rf8 Qb8 Rd8 Qc7 Ra8 Qd8 Rc8
2K1R3/1pP4b/1nb1Bp2/bPrN1B2/p2kB2B/3qRqN1/3b3n/3Bn1qQ w - - 0 1 illegal: No proof kernel
Kb2B3/1qpNp1nb/4PN2/nRN2pNB/R5n1/2Qq4/b3NP2/r3bk1n w - - 1 2 legal: proof: c4 b5 g4 f5 b4 a5 g5 axb4 c5 h6 c6 Ra6 Bb2 dxc6 Be5 c5 Bf4 Rf6 gxf6 c4 Bg5 hxg5 h4 Kd7 d4 Kc6 Kd2 Kd5 Ke3 g4 a4 g5 a5 b3 a6 b2 a7 b4 a8B+ Nc6 f7 b3 h5 g3 h6 g2 h7 g4 Rh3 c3 Nd2 b1B Ne4 Kc4 d5 g3 d6 c2 d7 c1B+ Qd2 b2 Rh6 Ba2 Rf6 b1Q Nc3 Nh6 Rg6 Qb7 Nd5 Bg7 f8N Na5 Rb6 Bc3 Nf6 Ng4+ Kf4 Bd4 Rb5 Ba7 Qe3 Rg8 h8N Bd2 Nf7 Bb8 Ng5 Be1 Qc1+ Kd4 e4 Rg7 Ne2+ Kd3 e5 g1N Bh3 g2 Qb2 Bg8 Ra4 Nf3 Qa1 g1N Bg2 Qd5 Bc6 Nd4 Bf3 Bh7 Qb2 Bb7 Qb4 Qc8 d8N Rg8 Be8 Ne6+ Kg3 Qc4 N8d7 Ng7 e6 Bd5 Nb7 Qe4 Qb2 Ba2 Qa1 Kd2 Nbc5 Qd3 Kf4 Qb7 Qc3+ Kd1 Bc6 Rf8 Bh5 Rd8 Ne5 Rd6 Bce8 Ra6 Ned7 Nf3 Qb2 Nfh2 Qa3 Nf1 Qc3 Nh6 Ke5 Ng3 Rh4 Nh1 Ra4 Bd2 Bg4 Ke1 Bgh5 Qh3 Kd4 Kf1 Ke5 Be1 Kd4 Qc8 Ke5 Ng4+ Kd4 Nc4 Kd5 Ra7 Kc6 Qd3 Rab4 Ra3 Ra4 Qa6+ Rb6 Qb5+ Kb7 Na5+ Ka8 Bc4 Rb4 Ra1 Ra4 Ba2 Rb7 Qbc4 Rb1 Qb3 Rb2 Qb6 Rb5 Qb7+
q2q1nRN/1pNbq3/1P1q3N/4R1b1/1n2p3/2kN1Bn1/4PQNp/n1BK3r w - - 1 2 legal: proof: g4 a5 d4 g5 b4 f5 h4 c5 b5 cxd4 Qd2 Ra7 Qb4 axb4 Nc3 Ra6 Nb1 Rg6 Na3 fxg4 Nb1 g3 Rh3 g4 Rh1 Rg5 hxg5 Qc7 Bf4 Qa5 Bc1 Qd8 f4 Kf7 c4 Ke6 a4 h5 a5 d5 f5+ Ke5 c5 b3 g6 d3 g7 Kd4 b6 e5 f6 g2 Nh3 g1Q f7 b2 c6 h4 c7 g3 a6 g2 a7 e4 Nd2 b1N a8N Nc6 Ra5 Nge7 g8N Bh6 f8Q Kc3 Rh2 d4 Ra7 Ng6 Qf6 Nf8 Qf5 Nb4 Ra5 Bd7 Rb5 Na3 c8N Be3 Nf4 h3 Nce7 Qh1 Qh7 g1Q Qf7 Qg5 Neg6 Qge7 Rg2 Qh2 Nh5 Qhb8 Nc7 Qa8 Rg3 Rh6 Bg2 Nac2+ Kf1 Na1 Ke1 Rh8 Re5 Rh6 Nc4 d2+ Kf1 d1N Ke1 d3 Nhf4 Rh7 Nb2 Rh6 Nh8 d2+ Kf1 Rh4 Nh6 Rh5 Rg8 Rh4 Nfe6 Bg5 Nf4 Ne3+ Kf2 d1Q Qf6 Qdd6 Ke1 h2 Nbd3 Rg4 Qf7 Nf1 Kd1 Bh4 Bh1 Rg1 Bg2 Rh1 Qf6 Bg3 Qh4 Bf2 Bf3 Be3 Ng2 Bg5 Qf2 Ng3+
q2R1qN1/1r1BBn2/nb3B2/5pBP/N5R1/7k/1pbPpB1p/KQ1r1rn1 w - - 0 1 illegal: No possible last move, all moves rejected
1R2bN1B/Q1n3P1/2N1PN2/2Npbp1p/1n4qp/1brR4/q2rBrk1/3K3N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 g4 Ke7 c4 Kd6 b4 Ke5 e4 f5 c5 d5 g5 a5 c6 h5 g6 a4 b6 d3 b7 a3 b5 f3 c7 a2 b6 Nc6 b8N Nce7 b7 Bh6 Ne2 Nc6 Na6 Qg5 b8N Bg7 Nc5 Bd7 c8N Ra3 Na7 Rc3 Nd2 Nb4 Ng3 Kf4 e5 Nf6 e6 Rc8 Rh3 Ne8 Rb1 a1Q Nh1 Qg4 Be2 Qa2 Bb2 Nc7 Qa4 f2+ Kd1 Be5 Nde4 d2 Nf6 Be8 Rd3 Rc2 Nbd7 Rc3 Bf3 Rc2 Nf8 f1R+ Ke2 Rc3 Nc6 d1B+ Kd2 Rf2+ Be2 Bb3 Qa7 Rc2+ Kd1 Rf3 Nf2 Kg3 Nh1+ Kg2 Nfe4 Bh2 Bh8 Rf2 g7 Be5 Nf6 Rb8 Na6 Rb5 Rb2 Rbc5 Rb1 R5c4 Nc5 R4c3 Ng3 Ba4 Nf1 Nba6 Rb8 Nb4 Ng3 Bb3 Nh1 Rd2+
1R2Qrnb/2rnBRpR/K5N1/qP3bpq/Rp2p3/2Nqk2P/7b/R4B2 w - - 0 1 illegal: Other
2r2r2/p1N2K1k/PRnpR2N/BPN5/1B1Nn2q/4p1p1/bN5q/1nq3bQ w - - 0 1 legal: proof: e4 b5 d4 f5 c4 bxc4 g4 h5 d5 hxg4 Bd3 e6 dxe6 Na6 e5 Nb8 Be4 fxe4 Kd2 g5 Kc3 c5 b4 e3 h4 g3 f4 g4 a4 g2 e7 Kf7 e8N Kg6 f5+ Kh6 a5 g3 b5 Qe7 f6 Rh7 h5 Qd8 e6 Ba6 e7 Qb6 f7 Qb7 Nf3 g1Q Nbd2 Qh2 Nb3 Qe4 Nd6 Bb7 e8N Nf6 Nfd4 Bd5 Nc7 Qeh4 Bd2 Rh8 a6 Be7 f8B+ Kh7 h6 Nc6 Ra4 Rc8 Qf3 Bf7 Rd1 Bd5 Qh1 Bd8 Be7 Rf8 Rf1 Bf7 Rf5 Bg8 Re5 Bf7 Re6 Bg8 Ra1 Bf7 Rc1 Ne4+ Kc2 c3 Kd3 c2 Kc4 Bg8 Kd5 c4 Ba5 c3 Nc5 Bf7 Rd1 c1Q Nc4 c2 Bd6 Be7 Nb2 Bf6 Rf1 Be5 Rf6 Bg8 Ndb3 Bc3 Nd4 Be1 Be7 Bf2 Bd6 Kh8 h7 Bg1 Rh6 Kg7 h8N Bf7 Rf6 Bg8 Nf7 Kh7 Nh6 Bf7 Ncb3 Bg8 Bdb4 d6 Nc5 Qcd2 Rf5 c1N Rf1 Na2 Rf7+ Kh8 Rd7 Qc1 Rd8 Kh7 Re8 Ra8 Rb8 Bf7 Rb6 Nac3+ Kc4 Nb1+ Kd5 Bg6 Rf6 Rfc8 Ke6 Bh5 Rg6 Bd1 Kf7 Bb3+ Re6 Ba2 Be1 Rg8 Bec3 Rac8 Bcb4 Rgf8#
r2b4/pr1R1p2/P1KRP3/1R1b2p1/RQ1N1qp1/R1nk1bB1/qB6/nr3N2 w - - 0 1 illegal: No possible last move, all moves rejected
K3B1B1/5qr1/3R2nn/N3pbPb/B5NR/p1nQPB1p/1B2p2n/n2r1k2 w - - 0 1 illegal: No proof kernel
BrB4q/4k1nN/p2rP1Qb/RKP2b1b/Bpp3R1/N1B5/p5nn/bB6 w - - 0 1 illegal: No possible last move, all moves rejected
k2K4/1p1qp2R/rnR3R1/r3pb2/Qb2rrB1/p1R1P1N1/R1nb1B1P/1N6 w - - 0 1 illegal: No proof kernel
2n5/2rNp3/p1Q1Nq1n/7q/NRbpr1P1/k1NrBBrP/1N1p2R1/K5b1 w - - 0 1 illegal: No proof kernel
r4K1B/N3p1NB/p1n3Rr/2Nq1N2/1Pq5/kq3Nb1/b1pP1npQ/4qR2 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 g3 b4 c6 h4 e3 h5 g2 f5 c3 f6 c2 b6 e2 b7 e1Q f7 a6 h6 g4 h7 g3 Nf3 Bd7 Bb2 c1Q Rg1 Nh6 Qe2 Bg4 Na3 Be6 Nb5+ Kd7 Ke5 c5 Rb1 c4 Na7 c3 Ba1 Qed1 Qf2 Qcc2 Bd3 Ba2 Rf1 g1Q Qh2 Ng4+ Kf5 Kd6 Kg6 Bh6 f8N Qe1 Ne6 Qge3 Kf7 Nc6 b8N Kd5 Nd7 Nf2 Ndc5 Bf4 Ng7 g2 Rc1 Bg3 Bg6 Rg8 h8N Kc4 Bh7 Qdd4 Ng6 Rh8 Ngh4 Qd5+ Nge6 Qb3 Nf5 Q1e2 Rce1 c2 Bf6 Q2d3 Kg7 Qee5 Re4+ Q3d4 Rg4 Qe1 Rg6 Qdd3 Bg8 Rh4 Bh7 Rh6 Kf7 Q3d4 Bh8 Q4e4 Nc8 Kb5 Kf8 Qf4 Ng7 Qfc4 Nd7 Ka4 Nc5+ Ka3 N3h4 Be5 Nf3 Bb8 Na7 Bg3+
nbr2RNB/2B2Bp1/brr1b1pp/B2pP1PN/8/2q2K2/Q3R3/q1B2kq1 w - - 0 1 illegal: No proof kernel
2NNN3/1P1p3B/RRp1pn2/3qN1rQ/4rq1r/bnpP2B1/k5KN/5rr1 w - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b6 b5 Ba6 c5 bxc5 b6 Bb5 axb5 c4 f4 Kf7 Kf2 Ke6 g4 Kd5 f5 a5 b7 h5 f6 e3+ Kf3 h3 b6 a4 g5 e2 g6 e1R f7 h4 g7 e6 Rh2 c3 Bd3 a3 Bh7 a2 Na3 Nf6 g8N Ra5 Nb5 Kc4 Na7 Na6 b8N Re4 b7 Nc5 Nbc6 Qb8 Nd8 c6 Nc8 Nb3 d3+ Kb4 Qe2 Rg5 Bf4 Ka3 Bg3 Bb4 Rg2 h2 f8N h1Q Ng6 h3 Ne5 h2 Kf2 Qd6 Ngf3 Qc1 Qd1 h1R Nh2 Qd5 Qh5 Bd6 Rg1 Qf4+ Kg2 Be7 Rab1 a1R Rgc1 Ka2 Rf1 Nc5 Rb6 Nb3 Ra6+ Ba3 Rb1 Na5 Rbb6 Raf1 Nh6 Nb3 Nf5 Nd4 Nfd6 Nb3 Bg6 Rh7 Ne8 Rh8 Qg4 Rh3 Bh7 Rh4 Qh5 Rhg1#
1R2r3/RB1p4/K1nrrp1Q/3qR3/p1nk2B1/1b2q1np/NR1P3P/2RN2r1 w - - 0 2 legal: proof: f4 e5 a4 exf4 b4 b5 c3 bxa4 b5 Qf6 Nf3 Qe7 Ng1 Qd8 Qb3 g5 Kd1 Bb4 cxb4 Kf8 Bb2 Ke8 Kc1 g4 Qd1 g3 Bd4 Nf6 Bb6 Ng8 Bf2 gxf2 Kb2 Ke7 Kc3 Kf6 Kc4 Ke5 g4 h5 e4 c5 g5 a5 b6 a3 Kb5 h4 b7 a4 g6 c4 g7 c3 Bh3 f1R Qe1 f3 Qg3+ Kd4 e5 a2 e6 c2 e7 c1Q e8R f6 Bg4 h3 Re5 f2 Qh4 Qc3 Qh6 Qe3 Nc3 Ne7 g8B Nbc6 b8R Re1 Rb1 a1R Rb2 f1N Bd5 Ra6 Rb7 Ng6 Ra7 Qg8 Nd1 Ng3 Bdf3 Bb7 Ne2+ Kd3 Nc1+ Kd4 Bd5 Qa8 Na2 Re8 Ndc3 Re2 Rc1 Re1 Nd1 Re2 Rg5 Nge5 Bh1 Nc4 Re5 Nd8 Bhf3 Rd6 Bh1 Bc6+ Ka6 Ree6 b5 Bd5+ b6 Nc6 b7 Qg8 b8R Re8 Ndc3 Qf7 Rcc2 Rg1 Rc1 Qh5 Nd1 Bg8 Re6 Qd5 Re7 Bh7 Re5 Bc2 Bg2 Bb3 Rab7 Ne7+ Ka7 Qef3 Rg5 Ree6 Re5 Qb5 Bh1 Qf2 Bc6 Qc5+ Ka6 Qd5 Rc7 Qe3 Ra7 Nb6 Ba8 Nc6 Bb7 Nc4
B7/p3Q1pb/BRn3R1/3KNk2/1p3q2/1PBp1Brr/3P2bB/bqrN3r w - - 1 2 legal: proof: f4 e5 a4 exf4 g4 b5 g5 b4 g6 Nc6 Kf2 Nd4 Na3 Nb5 Nb1 hxg6 Ke1 g5 Bh3 g4 Bg2 Ne7 Bf1 Ng8 axb5 c5 e3 c4 Qf3 Qe7 Qd5 Qd8 b3 c3 Qc6 Be7 Qa6 Bc5 Qa3 Bf8 Qb2 cxb2 Ke2 Ke7 Kd3 Kf6 Kc4 f3 h4 f2 b6 g3 e4 g2 h5 d6 b7 Rb8 e5+ Kg5 h6 f5 e6 f4 e7 f3 e8B Qa5 h7 Bg4 Be2 f1Q Bc6 f2 Nf3+ Kf5 Ne5 g1R Rh6 Rd8 b8B Rh1 Ba8 Bf3 Rg6 Ne7 Nc3 b1B Nd1 Nc6 Bb2 Qc7 Ra6 Be7 Rb6 Bf6 Bc3 d5+ Kc5 Bg2 Bf3 Qf7 Bd6 d4 Bc7 Rhe8 h8Q Rg8 Qh4 Rh8 Bd6 Qd3 Bb8 f1R Bd6 Qf8 Kd5 Rfg1 Qe1 R8h3 Qh4 Rc8 Bb8 Bd8 Qe7 Bc7 Ba1 Qf6 c4 Qh4 c5 Qf4 Bc3 Bd8 Qf8+ Bf6 Qe7 Qc2 Nf2 Rc1 Nd1 Rg3 Bc7 Rch8 Bb8 R8h3 Bd6 Nb8 c6 Qd3 c7 Nc6 Nd7 Qc2 c8B Qa2 Ba6 Bd3 Bc7 Qb1 Ne5 Be4+ Kc5 d3 Bd6 Bd5 Bb8 Bg8 Bd6 Bh7 Kd5 Bg5 Bc5 Bh4 Bg1 Bf6 Bh2 Qh6 Nd7 Qe3 Be5 Qf4 Ba1 Bb2 Ne5 Ba3 Bd4 Bb2 Bc3 Ba1
2N2B1q/1pB1p2q/nnNQb1pr/q7/p1KPP3/1B2RB1R/n5B1/k2r3n w - - 0 1 illegal: No proof kernel
1B5n/2q3RK/ppN2QB1/1pB1br2/2pP4/Bp1bb1Rn/r2B1k1P/2N2b2 w - - 0 1 illegal: Other
2n3Q1/q1P3r1/N1N2B1p/1Rp1qppb/2B3r1/bpbK2kP/1RB5/B4rB1 w - - 0 1 illegal: No proof kernel
4Rb2/bb2bpk1/q1NrR2p/2bn1P1R/r1qn3r/B4Q2/2BK3P/2R1RNn1 w - - 0 1 illegal: No proof kernel
1Rb5/BQ1nK3/q2rpB2/3n1pN1/3Nb2R/B2pB1r1/B2PqP1r/1n2rkb1 w - - 0 1 illegal: Other
3nNk2/pR2r2B/3nq3/1NBN1bpr/P4b2/Q1nq1pN1/1N1b1P2/K1qn2R1 w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 h5 c5 hxg4 c6 bxc6 Na3 c5 Nb1 c4 b4 g5 d4 c5 Kd2 e5 Kc2 f5 Kb2 f4 a4 e3 h4 e4 b5 e2 d5 e1Q h5 f3 h6 g3 d6 g2 b6 e3 b7 e2 h7 Nh6 Be3 Bf5 Nd2 Nc6 b8N Nf7 Rb1 c3+ Ka1 c2 Nc4 c1Q Nb2 c4 Bc5 c3 Nd7 c2 Qd3 Rc8 Qc3 Rc7 Nb6 Re7 Nd5 Bg7 d7+ Kf8 Qd3 Be5 Qe3 Nd6 Qa3 Qc7 d8N Bf4 Nf7 Qd7 Qc3 Qed1 Qa3 e1N Bd3 Nd8 Ne2 g1N Ng3 Ne2 Rg1 Ng2 Be4 Ne3 Bd3 Nb5 Nd6 Nec3 Ne8 Qe6 Be4 Nd6 Bd3 Rg8 h8N Rgg7 Be4 Rh7 Nf7 Rh5 Bd3 Qdd2 Be4 Ned1 Bd3 Nde4 Nfd6 Qe3 Nb5 Nd6 Be4 Qd3 Rh1 Bh3 Bh7 Bf5 Rg1 Qce3 Nc4 c1B Rb3 Qe1 Nb2 Bcd2 Nd4 Qc8 Rb7 Qee6 Nb5 Nb1 Bd4 Qc1 Bc5 Nbc3#
1rknrR1N/1qB2n1N/4qpQ1/qN1Rb2p/1p3Nn1/5B2/bP2qPKN/7r w - - 0 1 illegal: No proof kernel
1rn2Rq1/1Bp1Qb1b/2P2nn1/2BKp1n1/b3P1N1/1p1nr2B/4kbB1/B3N1R1 w - - 0 1 illegal: No possible last move
3qR2r/2Qn1b2/B1p1rpq1/rB1p2nr/3PpB1k/KN6/1R1b1P2/3NnB1B w - - 0 1 illegal: No possible last move
2R1r2B/KpRB4/N2r2pQ/2p4q/bPN1k1n1/n1Pr2pp/1B2B2r/b2b1B2 w - - 0 1 illegal: No proof kernel
2R4K/2pNk3/N2pNbp1/N1qP4/2rq1qQr/1R1BN3/p1b3Pp/2qn1nB1 w - - 0 1 illegal: No possible last move
rrnn3R/1B2Qp1b/1p1BRN1b/1Pp4R/2pp4/1q3NKp/2kP2Rb/r2R4 w - - 0 1 illegal: No proof kernel
4n2B/p2Kpqp1/p7/3Q3B/1pBpr1B1/RNk1b1N1/P3Pnb1/2nrRb1B w - - 0 1 illegal: Other
1RK4n/k3r3/4b1P1/2q1PN2/rQ5B/R1r2N1B/1R1Nn1rr/1nnR2n1 w - - 0 1 illegal: No possible last move
2K5/4Qq2/1r4q1/1nb4P/r1B2NPR/n1N2R1b/RN1Nr1np/1qkB4 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 a4 d5 cxd5 b5 axb5 Bg4 Nf3 Bf5 Ng1 Bc8 h4 axb4 h5 g6 Bb2 g5 Bf6 h6 Qc2 Ra5 Qh7 Ra4 Bd4 Ra2 Bf2 Ra8 Bh4 gxh4 Qxh6 Ra2 Qh7 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 d4 c5 e4 c4 d6 b3 d5 h3 b6 h2 d7 f3 Ke6 Kf4 g3+ Ke3 e5 f2 b7 f4 d6 b2 Ra7 c3 Nf3 c2 Ra2 c1R Nc3 b1N Nd2 f3 Bc4 f1Q Qe7 Nc6 b8R f2 Rb4 Rc2 Rba4 Qe1 Rf1 Qe8 Rb4 Nf6 Rba4 Ba6 d8N Na3 d7 Qb1 Nf7 Bc8 Nd6 Na7 Rb4 N7b5 Ra4 Ba6 d8N Qg6 Rb4 Ng4+ Kd7 Rh7 Ne6 Rh6 Nf4 Bc8+ Kd8 Ra4 e6 Bb7 Kd7 Bg2 Kc8 Rb2 Be2 Bh3 Bd1 Ne5 Rd4 Nf3 Rc4 Rc2 Rb4 Ne1 N6c4+ Kd4 Nb2+ Ke3 Nfd3 Ng2 Rh4 Rb4 g4 Ra4 Qf6 Bc5 e7 Qg5 Qg7 Rb6 e8B Qf6 Bf7 Qg6 Nf3 Re2 Nd2 Nc2 Bc4 Nca3 Re1 f1Q Nf4 Qf3 Rf1 Qd5 Qh7 Qdf7 Rf3+ Kd4 Qh8+ Re5 Qf8 Re7 Rf1 Re2 Nde4 Ke3 Qe7 Bd6 Nc5+ Kd2 Rf3 Kc1 N5e4 Bb4 Nd2 Bc5
qB1N2n1/1nbb2RN/1r6/K2b1r2/3p1R1b/Q1B2r1P/1RN1P1N1/3k1q2 w - - 0 1 illegal: No possible last move
Bn5K/3RbQ1q/7B/p2bN1RP/PRn3n1/n2BN1n1/3B3b/n5kr w - - 0 1 legal: proof: c4 c5 b4 e5 bxc5 d5 cxd5 h5 f4 exf4 d4 a5 g4 hxg4 Bg2 b6 Bh3 Ra7 Bf1 Rc7 Ba3 bxc5 Bc1 c4 Na3 Kd7 Nb1 Rc5 dxc5 Ke8 Kf2 Kd7 a4 g5 h4 f5 e4 c3 d6 Kc6 e5 g3+ Kf3 g2 d7 g4+ Ke2 g3 Kd3 Kd5 c6 f3 c7 c2 e6 f4 e7 f2 e8B f3 Na3 Qe7 d8B Bb7 c8R Qh7+ Bg6 Nh6 Qd2 Be7 Rc4 Ng4 Rb4 Ke5 Qh6 Bd5 Bd2 c1N+ Kc3 Nb3 Rd1 Na1 Bfd3 f1N Qf8 f2 Qf7 Nfe3 Bge4 f1N Nc2 Nc4 Ne3 Na3 Nf3+ Kd6 Kd4 g1N Bb6 g2 Ne5 Ng3 Ba7 Re8 h5 Nf3+ Kc3 g1B Rh2 Bg5 Rg2 Be7 Bd4 Bh2 Rgg1 Be6 Ba8 Bd5 Bb6 Rf8 Bd8 Kc5 Rg2 Bd6 Bg5 Be7 Bh6 Re8 Be1 Nd2 Rg1 Ndc4 Bd2 Kd6 Kd4 Rf8 Qg8 Rf1 Qf7 Be6 Rg2 Rh1 Rgg1 Nf5+ Ke4 Kc5 Rg2 Ng3+ Kf4 Bf8 Kg5 Kd4 Rgg1 Bd5 Rg2 Qh8 Kg6 Be7 Rgg1 Qc8 Kh7 Qd7 Rgf1 Qa7 Rf5 Qb7 Rg5 Qd7 Bg6 Qf5 Kh8 Ke4 Nd3 Kf3 Ne5+ Kf2 Bh7 Qf3 Bd3 Qf4 Rdb1 Qf5 R1b2 Kg1 Rc2 Nb2 Rc7 Nbc4 Rd7 Qh7+
1BqR3b/3p1N2/QN3R2/2bb3q/1Kb1Pb1q/r1P4k/RN1N1q2/5b1B w - - 0 1 legal: proof: d4 a5 b4 c5 g4 cxd4 a4 b5 Ba3 h5 Bb2 hxg4 Bc1 Ra6 Bd2 Rb6 Bf4 axb4 Bd2 b3 Bf4 b4 Bc1 Rb5 axb5 Rh3 Ra5 Rh5 Ra1 Rh8 e4 f5 Qd2 f4 Nf3 Na6 Qe3 Nc7 Qe2 Nd5 Qd1 Ne3 Ng1 Nf5 f3 e5 exf5 e4 Ra2 e3 Ra8 Nf6 Ra1 Ne4 fxe4 Bc5 Bd2 Bd6 Bc1 Bf8 h4 Kf7 h5 Kf6 b6 Kg5 b7 e2 Kd2 e1Q+ Kd3 b2 Kc4 g3 b8R d3 h6 d2 h7 b3 f6 g2 c3 f3 f7 Kg4 Rh5 g5 Ra5 Bb7 Rb5 Bd6 f8N Qf2 Ne6 Qc8+ Rc5 Bd5+ Kb4 Bf4 Ne2 g1B Qc2 d1Q Nd2 b1Q Qa2 b2 Ra5 Qh4 Ra3 f2 Nc7 Qbc2 Rh6 b1B Bg2 f1B Na8 Bd4 Bh1 Kh3 Nb6 g4 Rf6 g3 Raa8 g2 Qa6 Re8 h8N g1B Nf7 Bba2 Ba3 Rd8 Nc1 Bac4 Nd3 Qdh5 Nb2 Rf8 Rc6 Bh8 Rf6 Qb7 Rd8 Qc8 Ka5 Re8 Bd6 Bc5 Bb8 Re6 Nf3 Qcf2 Nd2 Bd4 Kb4 Rc6 Qa5 Rc7 Ra6 Ra7 Qb5 Ra8 Ra2 Ra3 Qa6 Bc5#
1b2B3/1k1qpN2/4PNN1/K6b/2Rb2b1/1p3Pp1/2r1RN1B/n1Bnq1Q1 w - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 f5 g4 fxg4 a4 d5 cxd5 Rxa5 h3 Ra6 a5 Rc6 Bb2 Rc1 Bxc1 gxh3 e4 Kd7 d4 g5 Kd2 c5 Kc3 Kc7 a6 h5 a7 b4+ Kc4 h2 Kb5 c4 a8N+ Kb7 d6 g4 e5 c3 d7 b3 d5 h4 d6 c2 Nd2 h3 Nc7 Nf6 Ne6 Bg7 Nf8 Na6 Ng6 Nb4 Ne4 Nfd5 Ra2 Ne3 Nf6 Rh7 Qe1 Nd1 Ra4 Qc7 d8B Qd7+ Ka5 g3 Bb5 Rh4 Bb6 Rc4 Ba7 Qf5 Be8 Qd7 Nf3 Bh8 Ng5 Rc6 Rg1 h1B Rg2 h2 Qg1 Rc3 Nge4 Rc7 Bf4 c1B Bb6 Bb2 Bc1 Nc2 Rc4 Na1 Ba7 Bd4 Bb6 Qd8 Bc5 Bh3 e6 Bg4 d7 Bg7 Bb6 Bh6 Bc5 Bf4 Ba7 Rc6+ Bb6 Bh5 f3 Bb8 Rgc2 Bg2 Re2 h1Q Nf2 Qc8 Bc5 Bh3 Ba7 B3g4 d8N+ Kc7 Bc5 Qd7 Nf7 Kb7 Qg2 Qh2 Rc3 Bh3 N2g4 Bde5 Bg1 Bd4 Nf2 Qh1 Bh2 B3g4 Rcc2 Qf1 Qg1 Rc3 Qh1 Qe1 Qg1 Rd3+ Rc3 Rd2 Rc4 Rc2+
k1bNrB2/1RR1Pb2/Pr1n3K/1B3bqb/2N5/3q1R2/B1n1QR2/2n2rr1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 a4 Kd7 e4 f5 Ke2 h5 Ke3 c5 Kf4 Kc7 d4 b5 g6 Kb7 e5 h4 g7 b3 e6 b4 d6 h3 a5 g2 d5 g3 e7 c4 Kg5 f4 d7 f3 d6 h2 Qd5+ Nc6 Bd3 c3 Qe5 b2 Ra4 f2 Qc5 f1R Na3 b1B Ne2 g1R Bb5 g2 Qc4 c2 Nf4 b3 Qe2 b2 Nc4 Rh6 Ra2 Nf6 g8B Nd4 Ne6 Ne8 a6+ Kb8 Ra3 Ba2 Rf3 b1B Bb2 c1N Bf7 Ndb3 Bg7 Nd4 Bf8 Bf5 Rf2 Nc2 Bg8 Qa5 d8R Qc3 Rd7 Qd3 Rc7 Bb3 d7 Nd6 Nd8 Rf6 Ne3 Bf7 Nc4 Rh6 Nb7 Ka7 d8R Rb8 Rf3 Ka8 Rdd7 Rh8 Nd8 Rb6 Bg7 Bh5 Be6 Re8 Bf8 Re1 Rb7 Rgf1 Bd5 g1Q+ Kh6 Qg8 Rg1 h1B Rdc7 Bf7 Rf2 Bf3 Rg3 B3h5 Rgf3 Qg3 Na3 Rg1 Ba2 Ref1 Nc4 Qg5#
B1b5/2Knb3/1r1rPRRB/R1NN3r/rr2r1r1/R1P5/3q4/rn1kB1Q1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 c5 a3 cxd4 a4 b5 axb5 axb4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 f5 h4 d5+ Kb3 g5 b6 g4 h6 g3 b7 d3 h7 Kd4 h5 f3 h6 d2 c3+ Ke3 e5 g2 e6 d4 Kc4 f4 Kb5 b3 Bb2 d3 Ra4 f2 Rh5 f3 Rc4 Nf6 Be2 f1R Nh3 g1R Bc1 b2 Rf4 f2 Bf3 Nbd7 Kc6 Rg4 b8B Ne4 Ra5 Re1 Rf6 f1R Nf4 Be7 Nd5+ Kf2 Ra3 Ra4 Be5 Rh1 Bg3+ Kf1 Bf2 Rh5 Bh4 Re8 h8R Rf8 Rg6 Rff4 h7 Rb4 Rf8 Ra4 Qb3 d1R h8R Nd2 Qb6 Rfb4 Rff6 Ree4 Bh1+ Ke2 Qg1 Rf1 Be1 Kd1 Rhf8 Nf3 Nd2 b1R Nb3 Nd2 Nc5 R1b2 Qe3 Nb1 Qg1 d2 Bg2 Kc2 Rf5 d1R R8f6 Rd3 Bh6 Kd1 Qd4 Ra2 Re5 Ra1 Qg1 Rf2 Reg5 Rfb2 Bh1 Qh8 Kc7 Rb6 Rf1 Qd4 Rff6 R2b4 Ne3+ Ke2 Nb7 Ref4 Ra5 Rd2 Bd5 Re4 Nc5 Qd3 Ba8 Qd4 Ng2 Kd1 Nf4 Qf2 Na6 Qe3 Nc5 Rdd6 Nd5 Qd2
k1r1rN2/3R4/3K1Nn1/1b2n2n/B1P3r1/Pnq1B3/2Q1n1N1/Bqr2BRr w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 g5 f4 gxf4 h4 Nh6 g5 Bg7 g6 Bf6 Qf3 Bg5 hxg5 Ng8 Qg4 Nf6 Qd1 Ng8 Kf2 b5 Kf3 d5 c4 Kd7 f6 Kc7 g7 Kb7 a3 h5 f7 e5 f8B b3 g6 b4 Bd2 d3 Ra2 h4 Nh3 e4+ Kg2 b2 Be1 f3+ Kf2 e3+ Kg1 d2 Kh2 b3 Bg3 f2 Qc1 d1N Ng5 d4 Qd2 d3 Qe1 d2 Bc5 h3 Bd3 f1N+ Kg1 e2 Ne6 h2+ Kg2 Qd4 Kf3 Qc3 Kf4 Ne7 g8B Bd7 g7 Nbc6 Qf2 e1R Rg1 h1R Bgh7 Rag8 Nf8 Ka8 Be3 Ne5 Be2 Be8 Bc2 N7g6+ Kf5 Bc6 Ke6 Bb5 Kd6 R8h4 Bh2 Ng3 Bf1 Nh5 Qe2 Rh8 g8N Rg4 Nf6 Rg8 N8h7 Rc8 Nf8 Qa5 Nc3 b1N Bhf4 b2 Ncd5 Ndc3 Ba4 d1R Qc2 Nd2 Bh2 b1Q Nf4 Ne2 Ng2 Qc3 Bg3 Nef3 Be5 Rc1 B5d4 Nfe5 Rb2 Bd7 Rb7 Bb5 Re7 Nb3 Rd7 Qa5 Bb2 Qc3 Ba1 Neg3 Nh4 Nd3 Bd2 Ree8 Ng2 Ne2 Be3 Nde5
1n1n4/n1N4r/QN6/nrn1kB2/4B1nB/Kbr3RB/R1PP2r1/1r1rN3 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 a4 gxh4 Ba3 c5 Bb2 cxb4 Bc1 b3 f4 e5 Bb2 b5 Rh3 b4 Nc3 e3 Bc1 e4 Rh1 Qa5 Nb1 Qb5 axb5 Bc5 Qg4 Bd6 Qd1 Be5 fxe5 Ba6 Ra5 Bb7 Ra1 Bc8 g4 Ke7 b6 Ke6 g5 a5 b7 f5 g6 h5 g7 h3 Qg4 h4 Kd1 e2+ Ke1 a4 Nc3 h2 Qg5 a3 Nd1 a2 Nb2 h3 Bg2 f4 Qh4 f3 Qf4 Ra3 Na4 b2 Qf8 b1N Qd8 b3 Qf8 b2 Bf1 Nh6 g8B+ Nf7 Qd8 Rh7 Qd4 Nc3 Qc5 b1R Qc7 Nb5 Qc5 Na7 Nb6 Rc3 Qa5 Rb5 Ba3 Kf5 e6 Ke5 e7 Nd8 e8B Be6 Bb2 Bb3 Be6 Rg7 Qa6 Rg2 Rb1 a1N Bf5 Bc4 Bc6 Nb3 Rd1 Na5 Ra1 Bb3 Ra2 Rg6 Kf2 e1N Ba3 Rg8 Be7 Nd3+ Ke3 f2 Bh4 Rg2 Ke2 e3 Kd1 Nc5 Kc1 e2 Kb2 e1R Ka3 Rd1 Nf3+ Kf4 Ne1 Ke5 Rg1 h1N Bce4 h2 Bfd3 f1R Bh3 Rf7 Bef5 Rh7 Bde4 Nbd7 b8N Nf2 Bb7 h1R Bbe4 Rgh2 Rg3 Rg2 Qc8 Rb1 Na6 Ng4 Nc7 Nb8 Qa6 Rgh2 Ng2 Rhd1 Ne1 Rg2
5Nnb/1k3rb1/NNR2P2/3n4/7B/pRNrPrBq/3QK2r/1Rr3qn w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 c4 g5 b4 d5 h4 Kd7 c5 Kc8 c6 a5 c7 f2+ Kd2 f1R h5 d3 h6 g3 h7 f3 b6 f2 b5 a4 Ra2 g4 Rh3 g2 Re3 a3 Re8 d4 Rc2 g3 Nf3 g1B Ng5 g2 Ne6 Bg7 Nf8 Nd7 Rc6 Ndf6 Re3 Nd5 Nc3 Kb7 c8N Qh4 Qc2 Qh3 f6 Ra7 Rg3 Re1 Qb2 f1R Re3 Rf3 Qc2 Kb8 b7 Bh2 Nb6 g1Q Qa2 Bf4 Qb2 Bfh6 Qc2 Ra8 Qb2 Ka7 b8B+ Kb7 Bg3 Rc8 Bh4 Rc7 Qc2 Rf7 Bb2 Rf4 Rg3 Rf3+ e3 Qgh1 Rg1 Rc1 Qd1 Q1g2+ Ke1 Qgg4 Rh1 d2+ Ke2 Qgg3 Qc2 d1N Qd2 Nf2 Re1 Rc2 Rb1 Rc1 Ba1 Qg1 Bb2 Nge7 Ba1 Rg8 h8R Nh1 Rh7 Bh8 Rb3 B6g7 Rh5 Qg6 Rg5 Qb1 Rg1 Qg6 Rf1 Qg1 Bb2 Rc2 Rb1 Rc1 Ng6 Ra8 Nf8 Ng8 Qe1 Ra6 Nba4 Qhh2+ Bf2 Kb8 b6 Qh5 b7 d3+ Kd2 Qh7 Nb6 Ra4 Nd1 Rh4 Be5+ Ka7 b8N Kb7 Na6 Rh2 Qe2 Qh3 Bh4 Nf2 Beg3 Nf4 Qf1 Nd5 Ke1 d2+ Ke2 Nb4 Nc3 d1R Qe1 Rd3 Qd1 Nd5 Qd2 Nh1+
qN4k1/1b6/3Rp2R/nNr1nr2/b2P1B2/Br3qBR/3P1Q2/KRb2b1b w - - 0 1 legal: proof: a4 d5 e4 f5 c3 b5 axb5 d4 cxd4 fxe4 h4 g5 b4 gxh4 b6 a6 b5 Nd7 b7 Nb8 b6 Bd7 Bc4 Bc8 Bb5+ axb5 f4 Kf7 g4 c5 g5 h5 f5 e3 f6 e6 Ra5 c4 Ra2 b4 Ra3 b3 Rh3 b2 Qf3 c3 Kd1 e2+ Kc2 e1Q Ra4 Ba3 Kb3 c2 Ka2 Bd7 Qc3 Qe2 Qf3 Nc6 b8B Na5 b7 Ne7 g6+ Kg8 g7 Ng6 Bg3 Rb8 Qf2 Qf3 Bf4 Ne5 Rb4 Ba4 Nc3 b1B+ Ka1 Rh6 Bb2 c1R Nb5 Rc5 Bc1 Bbc2 Rb1 Bd3 Bb2 Bf1 f7+ Kh7 f8B Rf6 g8R Rf5 Rg6 Qdd5 Rh6+ Kg8 Bd6 Qc6 Bc3 Bc1 Bb4 Qa6 Ba3 Qa8 Rh1 h3 Bg3 Qg4 Nf3 h2 Bc7 h4 Bd6 Ng6 Ne5 h3 Nd7 Qf3 Bdf4 Ne5 Qg1 Rbc8 b8R Rcf8 Rb7 Rb8 Rb6 Rb7 Qf2 Rb8 Rg1 h1B Rd6 h2 Rh3 Rb6 Nb8 Bhg2 Rh6 h1B Rh3 Qd3 Rh6 Bb7 Rg2 Qf3 Rgh2 Qc6 R2h3 Qf3 Nc3 Rb4 Nb5 Rb3
rR1n1K2/3qrBN1/B1b4k/5R2/1Q1B1r1P/pq2n1N1/1P1Rb3/bq1r3B w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 bxa4 d4 exf4 g4 c5 g5 c4 g6 Bc5 dxc5 hxg6 Ra3 g5 Ra1 g4 Kf2 Kf8 h4 a5 e4 g5 d6 Kg7 c6 f5 c7 c3 e5 f3 Kg3 a3 d7 a2 e6 a4 e7 c2 e8B f4+ Kf2 a3 Bf7 g3+ Ke1 g2 Kf2 g4 Qd6 Nh6 Rh3 Bb7 c8B Nf5 Ba6 Rh7 Nc3 Bc6 Nd1 Ne3 Qb4 Kh6 Ne2 g1R Rh2 Qe7 d8R Qd7 Rb1 a1B Ng3 Re1 Bd2 c1Q Bcb7 Qc4 Bc3 Qb3 Bd4 Rh1 Rc1 Rg1 Rc5 Re1 Nc3 Rd1 Rf5 Rg7 Nce2 Rh7 Qe1 Rg7 Nh5 g3+ Kg1 g2 Kf2 g1R Qb4 R1g4 Neg3 Rh7 Be6 Re7 Bf7 Bd5 Rc8 Nc6 Rb8 Nd8 Ng7 Bc6 Rh1 Rb1 Rd1 Rc1 Rd3 Rd1 Rd2 Nf1 Kg1 Ne3+ Kh2 f2 Kh3 f1B+ Rg2 Bd3 Rd2 Ba4 Bg2 f3 Bh1 f2 Bf6 Rc4 Bd4 Nd5 Kg4 f1Q Ne6 Bc6 Ng7 Kh7 Kh5 Ne3 Kg5 Be2 Kf6 Kh6 Bb6 Rf4 Bd4 Ree4 Be6 Qdd5 Ke7 Qd7+ Kf8 Qg1 Bf7 Re7 Ne4 Qg6 Ng3 Qh7 Rc5 Qe4 Rf5 Qb1
5bQ1/4q2q/kn2rb2/N2BR1qN/P1RB2rb/2p1n1Pr/3K2b1/R1B2B2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 f3 b3 d4 Kd7 a4 Ra6 g3 b5 g6 h5 g7 c5 d6 e5 d5 h4 Nc3 c4 Ke2 h3 Bh6 b2 Na2 h2 Nc1 c3 Bg5 b1Q Be3 Rb6 Ke1 b4 Nh3 c2 Ba6 Rh4 Bd2 e3 Nf4 Bb7 Nb3 Kc8 Na5 Qg5 Ke2 Nf6 Bd3 e4 Re1 h1R g8B Ng4 d7+ Kc7 Bc4 R1h3 d8R Bh6 Rd6 Nd7 Nh5 Rc6 f4 Kb6 f5 Bf8 Bb5 Ka7 Ba6 Nb6 Rd8 Rh6 d6 Ba8 Rc8 Bc6 Rg1 Bd5 Ke1 e2 Bc1 Ba8 Bd3 Rg6 Rc4 Ka6 Be3 Bc6 Qc1 Rh6 Kd2 e1B+ Ke2 Bf2 Re1 Bg1 Bf4 e3 Qb2 Rg6 Qc3 Bg2 Be5 c1B Bf4 Qh6 d7 Qh7 Be5 Qa2+ Kd1 Qf2 Bg7 Qf4 Be5 e2+ Kc2 Bd4 d8B Bfc5 f6 Qf5 f7 Bg5 f8Q Qf4 Rg1 e1Q Bd5 Qee3 Qh8 Bf8 Qg8 Qf6 Bdc7 Qfe7 Rge1 Re6 Kd1 Qf4 Bf1 Qe3 Bf4 Bdf6 Bcd6 Qe5 Bc1 Qef5 Re5 Ne3+ Kd2 Rg4 Bc5 Bh4 Bd4 Qfg6 Rf5 Qg5 Re5 bxc3+
nKr1B2N/6bq/3Rq3/pN1QnbN1/P4Nnk/P4Bq1/r1q1b1R1/2B5 w - - 0 1 legal: proof: h4 a5 c4 d5 cxd5 g5 f4 gxh4 b3 b5 Qc2 e5 Qc4 exf4 Qa4 bxa4 bxa4 Ra7 Nc3 Ra6 Nb1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 g4 c5 e4 h5 d4 h3 d6 c4 d7 h4 d5 h2 d6 c3 a3 h3 Bg2 c2 Ke6 Na6 e5 Qe7+ Kd5 Qe6+ Kc6 Nh6 d8N Nc7 Nb7 Bg7 Bf3 Kh4 g5 Ng4 g6 Bd7+ Kb6 Rac8 Ka7 Na8 Ne2 Rhd8 Re1 h1N Rd1 h2 Nd2 Nhf2 Ra2 h1Q Ne4 Nd3 Ng5 Qh2 Rd2 Qg3 Rd1 Qg8 e6 Nde5 e7 Qh7 e8B Be6 Bd2 c1Q d7 Qc4 Nd6 Qc2 Bc6 f3 Bc1 f2 Bf3 f1B Nb5 f4 Rd6 Bf5 Kb7 Rc5 Ka7 Rdc8 d8N Rd5 Ndf7 Rd1 Nh8 Rd2 Bd5 f3 Nf4 f2 Bf3 Be2 Rb2 Bh6+ g7 f1Q Kb7 Qfe1 Ka7 Nf7 g8Q Bg7 Kb7 Nfe5 Qd5 Qb1 Rb4 Ra2 Rb2 Qd3 Rd2 Qc2 Ka7 Bed3 Rg2 Qe4 Kb7 Be2 Ka7 Nc4 Kb7 Qe6 Ka7 Nce5 Kb7 Rc5 Kb8 Rc8+
Nrq2B2/1NnBn3/1bP1RB1r/Q1R2b2/7b/1KpN4/2r3bP/1kq3Bn w - - 0 1 legal: proof: b4 b5 e4 c5 g4 h5 a4 f5 exf5 hxg4 c4 d6 Qe2 d5 axb5 cxb4 c5 Nd7 Qd3 Nb8 Qc4 dxc4 Kd1 Kf7 Kc2 Kf6 d4 g5 f4 a5 c6 e5 d5 a4 b6 a3 d6 e4 d7 a2 b7 g3 Ne2 g2 Rg1 g4 Ba3 b3+ Kb2 c3+ Kc1 b2+ Kc2 e3 Bc5 g3 Nd2 b1B+ Kb3 Be7 Nd4 e2 N2f3 e1R Ne5 Rc1 Nb5 Na6 b8Q Nc7 Nd3 Rc2 Qb6 Rb8 Qa5 Rh6 Be2 Qe8 Re1 g1N d8N g2 Nb7 Nh3 Bg1 Nf2 Bg4 Nh1 Re5 Bd7 Rc5 Qc8 Bh3 Bd8 Bg4 Ne7 Bh3 Kf7 f6 Kg6 f7 Bf5 f8B Be4 f5+ Kg5 Bd4 g1B Bfg7 Bg2 f6+ Kg6 f7 Bf2 f8B Bh4 Ne5+ Kg5 Bg1 Kf4 Bf6 Ke4 Ng4 Kd3 Ne5+ Kd2 Bd7 Kc1 Bf2 Ne8 Bg1 Bb6 Nc7 Rh5 Ng6 Rh6 Na8 Nc7 Nf4 Re2 Ka4 Kb2 Kb4 Bf5 Re1 Rc2 Re6 a1Q Nd3+ Kb1 Kb3 Qa3+ Kc4 Qc1 Kb4 Qf4+ Kb3 Qc1
nK2rnn1/2N1q1p1/2B1P2P/1QRN2NB/n4b1b/r1q5/b1RNrB2/7k w - - 0 1 illegal: No possible last move
B1N1Qr2/2P3Kn/q2R1B2/bq1q3N/kb2p3/nNR2n2/P3R2q/1r2bR2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 f6 axb4 g4 h5 Bh6 hxg4 Bc1 b6 f4 e5 f5 Ba6 Kd2 Bc4 Ke1 Be6 fxe6 Rh4 Be2 Rh3 Bf1 Rh8 Kf2 d5 Kg3 g5 c4 e4 h4 b3 c5 d3 h5 b2 h6 b5 e7 Kd7 e8R Kc6 f7 d2 h7 d4 Qb3 d1Q Rh3 d3 Bg2 d2 Qe6+ Qd6+ Qe5 b4 Nf3 Kb5 c6+ Ka4 c7 b3 Nd4 Qc2 Nb5 d1Q Rh6 Qa6 Ree6 Nc6 Rh2 Nd4 Nd6 Rb8 Bh3 Nf6 Nd2 b1Q Nc8 b2 Rg2 Rg8 h8N Nh7 Ng6 Be7 f8R Rb4 Re8 Rf8 Rd8 Nf3 Rd3 Bc5 Rb3 Bb6 Rf6 Ba5 Nf4 Rb5 Rd6 Rb6 Kf2 g3+ Ke3 g4 Nh5 Rb8 Rh2 g2 Qe8+ Rb5 Rbd3 g3 Be6 g1B+ Rf2 g2 Bd5 Bh2 Ba8 g1B Rb3 Be5 Rbd3 Bf6 Kf4 Bh4+ Kg4 Bg3 Rg2 Bc5 Rf2 Rh8 Kf5 Rf8+ Kg6 Ba3 Kg7 Bc5 Nc4 Qcd2 Rf1 Qh2 Bg5 Qb3 Nd2 Qd5 Rb3 Qbd3 Be7 b1N Rc3 Na3 Rae1 Qb1 Ree3 Be1 Re2 Qbb3 Bf6 Qbc4 Rc6 Rb1 Nb3 Qcb5 Rd6 Bcb4
r2N1n2/1rBb2Rn/q4N1n/pB1K1PB1/1QR4r/4nkr1/2R2P1b/n4B2 w - - 0 1 legal: proof: h4 f5 e4 c5 exf5 b5 a4 g5 axb5 gxh4 d4 cxd4 c3 dxc3 Ke2 Kf7 Kd3 Kf6 Kd4 h5 g4 d5 b4 e5+ Ke3 Kg5 b6 a5 b5 e4 Kd4+ e3 b7 Kf4 b6 c2 g5 h3 g6 h2 g7 h4 Bb5 h3 Be2 Bd7 Na3 Nh6 g8B Rh7 Nb1 Bd6 Ra2 Qf6+ Kd3 d4 Kc4 d3 Bf1 d2 Nc3 e2 Kd5 e1N Ne4 Nf3 Qe1 Ng5 Ne2+ Kf3 Nf4 d1N Rg1 h1R Ne6 h2 Nd8 Bg3 Rg2 Rg1 Qb4 h1R Bd2 c1N Rc2 Qg6 Nf6 Bh2 Rg4 Rf7 Rgc4 Nh7 Bg5 Re7 Be6 Nb3 Bf7 Rg3 Be8 Bc8 Bd7 Na1 Bb5 Nd7 b8B Ndf8 b7 Bd7 Bc7 Rf7 b8R Re7 Ng8 Qa6 Rb6 Rg7 Rg6 Re7 Rg7 Ne3+ Kc5 Re6 Kd4 Rb6 Nf6 Rb7 Ke5 Bg1 Kd4 Rh5 Kc5 Bh2 Kd4 Rh4+ Ke5 Ng2 Kd5 Ne3+
b1bnBn2/rn4KR/rRB2nNP/Npn1BN2/4b3/Q7/3kq2P/3B1b2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 h5 g3 a5 Qb3 axb4 Qf3 Be7 Qg4 Bh4 gxh4 hxg4 Kf2 Kd7 a4 Kd6 d4 b5 e4 g5 a5 c5 h5 f5 h6 b3 a6 c4 a7 f3 Kg3 b2 Ra4 f2 Bd2 f4+ Kg2 f3+ Kg3 c3 Be3 c2 Ra1 c1N Nc3 b1B Nh3 Nc6 Nf4 Qe7 Nce2 Nf6 Ng6 Nd8 Rg1 Rh7 Bf4+ Qe5 Bg2 f1B Ra5 f2 Bf3 Bg2 Ra6+ Nc6 Rb6 Nb3 Rc1 f1B Rc4 Na5 Rc5 Rb8 a8B Ra7 Rc4 Nb7 Rc1 Kd7 d6 Ncd8 Rc7+ Ke6 Rh7 Bc2 Nc3 Bcd3 Nd5 Ra6 Bd1 Bc2 Kf2 g3+ Ke3 g4 Nde7 Bf3 Nf5 g2 Bg3 g1N Bf4 g3 d7+ Nc6 d8Q g2 Bg3 Nh3 Qf8 g1N Qa3 Nf2 Bf4 Ngh3 Bg3 Qc5 e5 Kd5 e6 Kc4 e7 N2e4 e8B Qe5 d5 Nf4 d6 Ne6 d7 Nf8 d8N Qe7 Kf4 Nec5 Kg5 Qe2 Be5 Bce4 Ne6 Ncd8 Ned4 B3g2 Nb3 Kd3 Na5+ Kd2 Re6 Bgf3 Rb6 Nd6 Bd5 Rba8 Bdc6 R8a7 Nge7 Nfe6+ Kg6 Nf8+ Kg7 Bh1 Bcd7 Ba8 Ng6 N6b7 Bc6 Be4
1nB1R1N1/5N2/2NB3p/1rR5/PqK5/2P1bn1R/b1kbnn1N/Qrb3b1 w - - 0 1 illegal: No possible last move
5N2/n3b1N1/K2rpRPb/3bQP2/Rrr2BBR/rq6/4Nr1b/2n1N2k w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 g4 Kd6 d4 c5 f4 h5 g5 h3 g6 e6 f5 h2 b6 c4 b7 b3 Qd2 b2 Qe3 c3 Bd2 c2 Bc1 h4 Ra5 h3 Ra3 Nf6 Qd2 e3 Kd3 e2 Kc4 e1B Kb5 Rh4 Rd3 Ne4 Qh6 Bg3 Ra3 Nc5 Qh8 Nd3 Ne2 Nc6 b8N Be7 Nd7 Bb7 Ra4 Qb8 Nf8 Na7+ Ka5 Bc6 Na3 b1R Ka6 Rb4 Bg2 Be5 Bf4 c1B Nc2 Bd2 Ne1 Nc1 Qf6 Rc4 Be4 Qb3 Bf3 Rb4 Bg4 Be3 Rf1 h1R Rf2 Rf1 Rh2 Rf2 Rh1 h2 Qh8 Kc7 d6+ Kb8 d7 Kc7 d8R Bd5 Qg7 Kc6 Rd7 Rd8 Rb7 Bb8 Qe5 Rd6 Rd7 Bf6 Rh7 Be7 Rf7 Rh3 Rf6 Rg3 Rg1 h1R Rf1 Rhh3 Rh1 Bd2 Rh2 Rc3 Rh1 Rhd3 Rh4 Rc5 Ng3 Rcc4 Nh5 Qd1 Ng7 Ra3 Bg3 Qb3 Bh2 Bh6 Bf4 Bg2 d5+ Kc5+ Ka5 Rc6 d6+ Bd5 d7 Rd6 Qb2 Kc6 d8N+ Kc5 Qe2 Kd4 Qb2+ Ke4 Nc6 Rd8 Qa1 Be5 Nd4 Rd6 Bg5 Bh2 Ne2 Rf4 Qb2 Ke3 Qc3+ Kf2 Qe5 Rf3 Bf4 Kf1 Nd3 Kg2 Ne1+ Kh1 Bh5 Rd8 Bg4 Rf2 Ka6 Rd6+
R1q4k/1NB2b2/P7/Bn2n2K/2Qn1R1R/1q1r1PRp/n5r1/n2Bnb1N w - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 Qa4 fxe4 Qd1 d5 cxd5 g5 h4 gxh4 Bb2 c5 Bc1 Bg7 d3 c4 d4 Be5 Qg4 Bd6 Qd1 Bc5 dxc5 Ra4 Nc3 Ra5 Nb1 Ra8 Ke2 Kf8 g4 Kg7 a4 h5 f3 e5 g5 b5 c6 b3 d6 b2 a5 h3 c7 h4 a6 b4 g6 c3 d7 c2 Bd2 c1N+ Kf2 e3+ Ke1 e4 Bc4 b3 Ra3 h2 Ra1 h3 Nc3 b1Q Nd5 e2 Kf2 e1N Kg3 b2 Kg4 e3 Ne2 Nc6 Ra4 Nd4 Ndc3 Na2 Qc2 Ne7 Ne4 Nec6 Nd6 Rg8 Rg1 h1B Ng3 e2 Bb3 Bg2 Ba5 Bf1 Nh1 Ne5+ Kh5 Kh8 Qc4 Nec2 Rg3 e1N Nb7 Na1 Bd1 Qe8 d8B Be6 c8R Bf7 Bdb6 Qd7 Rd8 Qc8 Bc7 Qc2 Re8 b1N Rf8 Qb3 Rb4 Na3 Ra4 Be6 Rf4 Nab5 g7+ Kh7 Kg5 Bf7 Kh4 Rd8 g8R Rd6 Re8 Rg6 Kh5 Rb8 Nc5 Rbb6 Nb7 Rbd6 Re7 Kh8 Rb4 Qg8 Re8 Rd7 Ra8 Qc8 Rh4 Ne6 Rgg4 N1d3 Qc5 Ne1 Rbf4 Rd3 Qc4 Ned4 Rf6 Nb4 Rgf4 Rg2+ Rg6 Bg8 Rgg4 Na2 Rg3 Bf7+
2KN1r2/n1b3pk/R3nRb1/R1P1n3/r7/Q1nP1N1b/3B3b/b2qB1BR w - - 0 1 legal: proof: b4 b5 e4 c5 g4 h5 a4 f5 exf5 hxg4 c4 d5 axb5 cxb4 c5 Kf7 Be2 Ke8 Bc4 dxc4 Ke2 Kf7 Ke3 a5 Ke4 e5 h4 c3 f4 a4 h5 b3 b6 g3 f6 c2 h6 Kg6 h7 a3 f5+ Kg5 b7 g2 f7 a2 f6 Kg6 Nc3 b2 Nce2 b1B Nf3 g1B Ned4 Nh6 Ne6 Bd6 Kd5 e4 f8R e3 f7 Nc6 b8B e2 Qe1 Ra3 Qg3+ Ng4 Bc7 e1N Ba5 Qd7 Nd8 Na7 Qh3 Rg8 h8R Nd3 Qg3 Bh2 Rh6+ Kf5 Bc3 Bc7+ Rd6 Qa4 Ra6 Nge5 Bd4 Bd7 Bg1 Qg4 Ra5 Kg6 Ra6+ Kh7 Ra5 Bb6 Kd6 Ra4 Ra6 Qh5 Ke7 Bh3 Ke8 Ng4 Kd7 Nf4 Ra5 Bc7 Ra6 Nb5 Kc8 Ne6 d3 Ne5 Bd2 c1N Qh4 Ne2 Qb4 Nec3 Qa3 Rh8 Rg8 Bc2 f8B Bb3 Bd6 Qg4 Rf1 a1B Rf8 Rg8 Rf6 Rf8 Be1 Ba2 Rf2 Bd5 Ra2 Be4 Bd2 Bg6 Ra5 Nf7 Bg3 Ne5 Bge1 Qh5 Nd4 Qe2 Nf3 Qd1 Rb2 Nbd4 Rb6 Ndb5 Rba6 Na7+
3r1k2/1Np1rPnn/1R2R1B1/P3rR2/1Kb4N/3nq1n1/3r1BQ1/1n1N1Rb1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 e5 Rh3 exd4 Rh2 Nc6 Rh1 Nb8 Kd2 h5 f4 b5 g4 h3 a4 b3 g5 h2 f6 b2 a5 b4 f5 d3 d6 b3 Kc3 h4 g6 d2 g7 h3 Qg4 d1R Ra2 Nd7 Kc4 Rh7 Qe4+ Qe7 Qg4 Ne5+ Kb4 Ba6 Qg2 Rd8 Nc3 b1N Bd3 b2 Nf3 Bc4 Rf1 h1N Nh4 h2 Be3 Rd2 Nd1 Ng3 Bf2 h1N Be4 Nh5 f7+ Kd7 f6 N1g3 Bg6 Nd3+ Ka4 Ke6 d7 Kd6 Ra3 Qe3 Rb3 Ke6 Rb8 Bc5 f8R Kd6 f7 Ke7 Rb6 Ngf6 g8R Ng7 Rh8 Rh5 Rfg8 Bd4 Rh6 Re5 Rh5 Nh7 Rf5 Nc3+ Ka3 b1R Rh8 Rbb5 Rg8 Rbd5 Rh8 Re8 d8N Nb1+ Ka4 Rd7 Nb7 Ra8 Rb8 Rd8 Re6+ Kf8 Nc5 Re8 Rbb6 Rad8 Nb7 Re7 Bh5 Qh6 Bg6 Be3 Be1 Bg1 Bf2 Ba6 Kb3 Qe3 Ka4 Bb5+ Kb3 Bc4+ Ka4 Nc5+ Kb4 Nd3+
1r2r1Nn/NbR5/4R3/1b2P1BB/2pq2N1/1N1b1Prn/4R1QK/2bk2nn w - - 0 1 legal: proof: h4 d5 d4 g5 c4 gxh4 a4 b5 axb5 f5 g4 fxg4 cxd5 e5 Ra5 exd4 Ra6 Bb7 Ra1 Bc8 e4 Kf7 b4 Kg6 b6 Kh5 e5 c5 b7 a5 d6 c4 b5 a4 b6 d3 d7 h3 Ra2 h2 Bg5 a3 Rd2 a2 Nc3 a1R Be3 Nc6 b8N Nh6 b7 Ne7 Qb1 g3 Bb6 Kg4 Nc6 g2 b8N Bb7 Bc7 Nf7 Nh3 Kf3 Rc2 g1N Na6 h5 Nc5 h4 N3e4 Ng6 Nf6 Bh6 Re2 Rb8 Ng8 Ra3 Qb2 Bc1 Na7 Nf4 Nb3 Ba6 Ba5 Bb5 Bd2 Qb6 d8R Qd4 Rd6 Re8 Be3 d2+ Kd1 Rb8 Re6 Re8 Nf6 Rhf8 Ng8 Nh8 Qc2 Rb8 Qg6 Rfe8 Qg5 Ke4 Qg3 Kd3 Qg2 Nd5 Bg5 Nf4 Re1+ Kc3 Be2 Kb2 Bh5 Kb1 Na1 Rg3 Re2 Kb2 Nb3 Kc3 Bf6 Kd3 Ng5 h3 Nh7 Nf3 Rg1 h1N Bg5 h2 Nhf6 Nh3 Ng4 Kc3 Re4 Kb2 Ke2 d1B+ Kf1 Bc2 Re1 Bd3+ Re2+ Kb1 N4f6 Ng6 Bh4 Nhg5 Qh3 Rg4 Qg3 Nh8 Kg2 Nh3 Rf1 Rf4 Ng4 Nfg1 Bg5 Re4 Qf3 Re3 Qe4 Ng3 Qd5 h1B+ Kh2 Bg2 Qf3 Nh1 Qg3 Bb7 Qg2 Qc5 Rc2 Rg3 Re2 Bc2 Rd1 Qd6 Rd5 Bd3 f3 Qc5 Rd7 Qd4 Bd2 Kc2 Rc7 Kd1 Be3 Bc2 Bg5 Bd3
3RnKn1/1bN5/1NN1qr2/2P2PB1/1Br1Q3/qrR2p2/2R2n2/bk1r2nN w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 f5 f4 b5 axb5 h6 Bg2 h5 e4 fxe4 Bf3 exf3 gxh5 Bb7 Qe2 Ba6 Qd1 Bc8 Kf2 Kf7 Kg3 Kf6 Kg4 d5+ f5 Ke5 Kg5 Ke4 Kg6 a5 Kf7 g5 b4 e5 h4 d3 c4 a4 h6 d2 b6 Kd3 h5 a3 h7 a2 b5 e4 c5 g4 h6 d4 b7 e3 b6 e2 Rh4 e1Q Rh2 g3 Qe2+ Kc2 Nc3 g2 Nh3 g1N Nf2 d3 Nh1 Ra3 Nd5 Bg7 Qe4 Nd7 b8N Bb7 Nc7 Rb3 Nc6 Ndf6 Ba3 Qa8 Bb4 Kb2 Rc1 a1R Rc3 Ne8 Re2 Bd4 Kf8 Kb1 Rh2 d1R Rhc2 Ba6 b7 d2 b8N Ra4 Nd7 Bb7 Nb6 Qe2 Ba5 Rc4 Bb4 Qa3 Kf7 Ngf6 Ke7 Rf8 h8B Qe1 h7 Qe3 Bg7 Be5 h8R Ng8+ Ke6 Qe1 Bh6 Rf6+ Kd7 Qe2 Bg5 Bd4 Re3 Ba1 Rec3 Re1 Kd8 d1N Kd7 Nf2 Kd8 Nh6 Ke7 Rd1 Rf8 Rfd6 Rh8 Ng8+ Kf8 Rh6 Rh7 Rhd6 Rd7 Rg6 Rd8 Qe3 Qd5 Qe6 Qe4 Rf6+
krRN3n/q1R2qr1/r4P1B/3KPrNB/Nb6/n4Q1N/1p1B4/qb2q3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 e5 e4 exd4 e5 f6 Qg4 f5 Qe4 fxe4 Kd2 Kd7 a4 c5 h4 Kc7 f4 g5 h6 b5 h7 Kb7 h5 c4 h6 c3+ Kc2 e3 Kd3 b3 Ke4 g4 d6 c2 a5 d3 f5 b2 d7 e2 f6 e1Q+ Kd5 b4 Nf3 b3 Ra4 g3 Rf4 d2 Kc4 d1R Bd3 g2 Rd4 g1R Nc3 b1Q Na4 b2 Bg6 Qe8 Kd5 Qa1 Bd2 c1Q Rc4 Nc6 Ng5 Na7 Nh3 Nb5 Bh5 Ra6 d8N+ Ka8 Rc7 Rg7 Rg1 Bc5 Rg4 Bd7 Rc4 Bf5 Rc3 Bb1 Rc2 Re6 a6 Na3 a7 Bb4 R2c3 Rb6 Rc8+ Rb8 R3c7 Ne7+ Kd4 Qg1+ Nf2 Rf1 Ne6 Qd1 Ng5 Ng6 Rd8 Qe1 Kd5 Rc8 Nfh3 Qf8 Re8 Rf5 Rd8 Rhg8 h8N Qb6 h7 Qe7 Rc3 Kb7 Rc7+ Ka6 Nhf7 Ra8 Rb8 Re8 Rd8 Rb8 Rdc8 Nh8 Nd8 Qa5+ Kd4 Qf7 a8Q+ Kb5 Qh1 Re6 Kd5 Qb6 Qf3 Ka6 Rc3 Ka7 R3c4 Rg8 R4c6 Ka8 R6c7 Ng6 h8B Qa7 Bg7 Nh8 Bh6 Rg6 Rc3 Rg7 R3c7 Ra6+
1qKB1b2/3P3n/1b6/1B3Q1b/p3q1q1/Rr2r2B/1NP2Nq1/nkb2NRN w - - 0 1 legal: proof: h4 f5 a4 d5 e4 g5 exf5 gxh4 Qf3 b5 Qe4 dxe4 axb5 c5 b4 cxb4 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Kg4 a5 f4 a4 d4 h3 d5 h2 d6 b3 b6 b2 b7 e3 Nh3 e2 Rg1 h1Q Ra3 e1B Nf2 e4 Bb5 e3 Nd2 b1Q Nf1 Nd7 b8N e2 Nc6 Nc5 Na5 Nb3 Nc4 Qd7 Nb2 Bd2 g3 Qe4 Nh1 Ba5 Be3 e1B Bb6 Bed2 Bd8+ Kg7 Kg5 h5 g4 h4 f6+ Kf7 Nh2 Ke6 f7 Kd5 Nf1 Qg2 Kg6 Kd4 g5 Kc3 f5 h3 f6 Qe6 d7 h2 Nf2 Qe2 Nh1 Bb7 Kf5 Rh3 g6 Bc6 g7 Re3 Kf4 Be4 Ke5 Bc1 Ke6 Qeg4+ Ke5 Be7 f8N Bb6 f7 Rb8 Ne6 Nf6 f8Q Nh7 Qf5 Bf8 g8B Rb7 Nf4 Bf3+ Qe4 Be2 Nfd3 Bd1 Be6 Bf3 Nhg3 h1Q Nf2 Qhh4 Ngh1 Be2 Ra2 Na1 Kd5 Bd1 Kc6 Bf3 Qd5 Qe4 Bh3 Bh5 Nbd3 Qb3 Nb2 Qhg4 Ra3 Bbc5 Bd3 Rb5 Kc7 Bb6+ Kc8 Rb4 Nfg3 Kd2 Qb5 Qbg8 Qf5 Rb3 Bb5 Kc3 Nc4 Qh8 Nf1 Qhe5 Nd6 Kb2 Nc4+ Kb1 Nb2 Qb8+
B5N1/2qkP3/1K2r3/1n1Np2q/R2rq3/1qrBPbn1/nB2R2B/Q4q1N w - - 0 1 illegal: No possible last move
3bNQ2/Npb4R/1bn1rK2/1PPk4/3n4/b3b3/nBR1q2q/2BNR1qR w - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 a5 b4 h5 Bd3 hxg4 Bc2 a4 Bb3 axb3 d3 d5 Bd2 c5 Bh6 Be6 Bc1 d4 Nc3 Bd5 cxd5 c4 Nb1 c3 Bd2 Ra6 Bg5 Rc6 Bc1 Rc4 dxc4 Qa5 Qc2 Qc7 Qd1 Qd8 Bg5 Kd7 Ke2 Kd6 a4 e5 h4 e3 Kd3 c2 Ke4 c1N Kf5 e4 f4 e2 h5 e1B a5 e3 h6 d3 a6 e2 a7 d2 a8R b2 h7 g3 b5 g2 Nf3 g1B Bh6 g5 Nh4 g4 R8a2 g3 Nc3 b1Q+ Rc2 g2 Bg5 Kc5 d6 Bg3 d7 e1B Qf3 Qc7 d8N d1Q Nc6 Na2 Na7 Nh6+ Kg6 Be7 f5 Qe2 f6 Re8 h8B Nc6 f7 Nf5 f8R Bd8 Rf7 Re7 Rh7 Qbd1 Bd2 Be3 Bg7 Kd6 Rb1 Bb6 c5+ Ke6 Ra1 g1B Bd4 Be3 Qf2 Nh6 Qf8 Nf5 Bf6 Be5 Rac1 B1g3 Ra1 Qg1 Re1 B5d4 Nd1 Bb2 Bc1 Ba3 Bfb2 Kd5 Kf6 Nfd4 Nf5 Bh2 Ng7 Qcg3 Ne8 Q3g2 Ng7 Bhc7 Ne8 Qh3 Qg7 Qhh2 Qf8 Re6+
1r1BNq1b/PbRNR3/1Rr5/k2nb2P/3rBQ2/r3p1r1/6q1/q1R1K2N w - - 0 1 legal: proof: c4 a5 g4 g5 b4 axb4 h4 d5 cxd5 h5 e4 f5 Bg2 fxe4 Bh3 Nd7 Bf1 Ndf6 Ne2 gxh4 Ng1 h3 Bc4 h4 Bf1 Nh5 gxh5 Ra7 Bc4 Ra3 Bf1 Ra8 f4 Kd7 a4 e5 d4 c5 a5 Kc7 f5 b5 a6 Kb6 d6 c4 f6 b3 d7 h2 d5 b4 f7 b2 d6 b3 Bf4 c3 Bg3 h3 Bf4 c2 Qe2 c1R+ Kf2 Bg7 f8N Nf6 Qd1 e3+ Ke1 e2 Bg5 e4 Na3 b1R Bg2 b2 Nb5 Rc6 Nc7 Bb7 Ne8 Rg8 Qc1 Nd5 a7 Rb8 Ra3 Be5 Rb3+ Ka5 Rb6 Ra1 Bh4 Ra4 Qf4 Rg3 Bf6 Qc8 d8R Rd4 Rd7 Qd8 Rc7 b1R+ Qc1 Rbb4 d7 Ra4 Qf4 Raa3 Bh4 Qe7 d8R Qf7 Nd7 Qf8 Rdc8 Bh8 Bd8 Be5 Kf2 e1B+ Ke2 e3 Be4 Bh8 Kf1 Bd2 Ne2 Bc3 Rg1 Bb2 Ke1 h1Q Rf1 h2 Rg1 Rf3 Ng3 Qg2 Nh1 Rg3 Rf1 Rb4 Rf2 Bbe5 Rc2 Rd4 Rc1 Qf7 Nc5 Qf5 Re7 Qf8 Rcc7 Rd2 Nf2 Rd4 Nd7 h1Q+ Ke2 Qh4 Ke1 Qg4 Nh1 Qb2 Qh6 Qa1 Qf6 Qf3 Qf4 Qg2
3r1R1N/1Nb1Qqr1/P3rP1b/2K2R1r/Nr2p3/3k1bRn/4RB2/q2B3r w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 axb4 e4 fxe4 h4 g5 d4 gxh4 Bh6 c5 Bc1 c4 Nd2 Na6 Nb1 Nc5 dxc5 Ra6 Nc3 Ra7 Nb1 Ra8 Ke2 Kd7 Ke3 h5 Kd4 e5+ Ke3 b5 a4 h3 f4 h2 g4 h4 c6+ Kd6 a5 Kc5 g5 h3 a6 b3 f5 b4 d6 b2 d7 c3 g6 c2 f6 b3 c7 Rh7 g7 Qe7 d8R Bb7 c8N Nh6 g8R Qf7 Rd3 Kc4 Bd2 c1B Ra5 Rg7 Qh5 Bd6 Rd8 Bc7 Nc3 b1Q Be2 b2 Na4 Qa1 Bd1 b1R Qe2 Rb4 Nf3 Bc6 Rg1 h1R Ng5 h2 Rg3 Bb7 Qe1 Bc6 Rf8 Ng4+ Ke2 Nf2 Rde3 Nh3 Nd6+ Kd4 Nb7 Rd8 Bc3+ Kc4 Bd4 Bd5 Rb3 e3 Rb2 Bc6 Rd5 Bd2 Kf3 e2 Ke4 Bf4 Bf2 Bc1 Qg1 e1R+ Re2 Bd7 Qg2 Bg4 Qf3 Bh5 Qf5 Bd2 Qd7 Be3 Qe7 Bf3+ Kf5 Bf4 Rc5+ Kd3 Ra5 Qfa2 Nf7 Bh6 Nh8 Qf7 Bb3 Rb1 Bd1 Re1 Rb5 h1R Rc5 Rh4 Ra5 Rbb4 Rc5 Qe8 Ke6 Rh5 Ra5 Rb8 Rb5 Qf7+ Kd7 Re8 Ra5 e4 Kc6 Rd8 Rf5 Rd6+ Kc5 Re6 Bb3 Rb1 Bd1 Rd4 Bb3 Rd8 Bd1 Rb4
4Rrnk/2q2q2/qnQ2r2/Bbq5/2Nr1NB1/K1NNp1n1/2rPP3/3R3B w - - 0 1 legal: proof: b4 a5 h4 f5 g4 g5 a4 d5 c4 dxc4 Bb2 axb4 Bc1 b5 axb5 Bh6 Qc2 fxg4 Qd1 g3 Bg2 g4 Bf1 Bg5 hxg5 Ra5 Nc3 Ra7 Nb1 Ra8 f4 Kf8 g6 Kg7 b6 e5 b7 h5 f5 c5 Bh3 e4 Rh2 c3 Bg2 b3 Rh1 c4 Na3 e3 Nf3 b2 Ng5 b1R Nb5 h4 Ba3 c2 Be4 c1R Nf3 h3 Bb4 g2 Ba5 c3 Ne5 g3 Nd3 c2 Nc3 Rh4 f6+ Kh8 f7 h2 f8N Qc7 Ne6 Bd7 Nef4 Bb5 Ra2 Nd7 b8N Rb3 Nc6 Rf8 Nce5 Nb6 Nc4 Ra3 Rf1 g1Q Bh1 g2 Rb2 Ra4 Rb3 Rh6 g7+ Kh7 Rb4 Rhf6 Rb1 Ne7 g8B+ Kh8 Be6 Ng8 Bg4 Qc5 Nce5 Rd4 Rb2 Rb1 Ra2 c1Q Nc4 Rb2 Ra3 Qa1 Qc1 Qf2+ Kd1 g1Q Rb3 Qaa3 Qc2 Qa2 Kc1 Qgg3 Rd1 Qff3 Rb4 Qa3 Qa4 Rc2+ Kb1 Qfd5 Rb3 Qf7 Rb4 Be8 Qc6 Qa4 Rb3 Qab5 Rb2 Qa6 Ka2 Bd7 Ne6 Qc7 Nef4 Qg5 Ka3 Qc5+ Rb4 Be8 Bd5 h1N Bdf3 Ng3 Bh1 Qcd5 Rb5 Qg5 Re5 Bd7 Re8 Qf5 Qf3 Bb5 Qc6 Qc5+
2q1nr1Q/n1rk3r/q1pB1P1b/1r1N1Rnn/3BK3/P3N3/1R4Bq/1R3R2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 c5 f5 c6 fxe4 cxd7+ Kf7 dxc8R Ke8 Ke2 h5 Ke3 e5 d4 b5 g4 b3 f4 b2 f5 b4 g5 b3 g6 h3 a3 h2 g7 h4 d5 h3 d6 Rh7 Qe1 Nc6 Bd2 Kd7 Bc1 Nf6 g8R Na7 Qh4 c6 Qh6 Ne8 Qg5 Bh6 Rb8 Qc8 Nd2 b1Q f6 b2 Nc4 Qd3+ Kf2 b1R Bb2 e3+ Kf3 e2+ Ne3 e1R Qh4 Qda6 Bd4 Rb5 Rg5 e4+ Kf4 Rd1 Ne2 Rd2 Rg1 h1Q Rb1 h2 Nc3 Qg2 Ncd5 h1N Kf5 Qh2 Bg2 Ng3+ Kf4 Rdb2 Rgf1 Nh5+ Kf5 Rb7 Qh3 R2b5 Qh4 Kd8+ d7 Rc7 Rb6 Ra5 R6b2 Rb5 Nc2 e3 Ke4 e2 Nce3 e1N Rgf5 Nf3 Qh3 Nhg7 Qh4 Bf4 Qh6 Nh5 Qf8 Bh6 Qh8 Rcb7 Nc3 Kc7 d8B+ Kd7 Ncd5 Rc7 Be7 Ng5+ Kd3 Neg7 Nb4 Qcb7 Nbd5 Rf8 Bec5 Ne8 Bd6 Nh3 Ke4 Qb8 B6e5 Qbc8 Bd6 Ng5+
5B2/3K1bnR/p7/bQ2q2P/2B1rBbN/2r2rP1/1r2b2R/Nbbk1N1B w - - 0 1 legal: proof: e4 b5 f4 c5 a4 d5 axb5 g5 d4 gxf4 Bd3 cxd4 Bf1 d3 g3 h5 Bg2 h4 Nf3 d4 Bf1 h3 Qd2 Nc6 Ng1 Nb4 Qg2 Nd5 exd5 hxg2 Kd2 Kd7 h4 Kd6 b4 Ke5 c4 Ke4 b6 e5 b7 f5 b8Q a6 d6 f3 h5 f4 b5 f2 b6 f3 b7 Bf5 c5 Qc7 c6 Nh6 d7 Ba3 d8N Re8 Ne2 g1R Bh3 f1R Bb2 f2 Nf7 Kf3 Nh8 e4 Rh2 Rg2 Ng6 Qe5 c7 Re7 Qe8 Rc8 b8B Be6 Bc3 Nf5 Qb5 Bf7 Bb4 Ng7 Nc1 Ree8 Nb3 Re7 Nc3 Bb2 Re1 e3+ Kd1 d2 Kc2 d1B+ Kd3 e2 Na1 Bc1 Be6 Ba4 Kc4 d3 Ne4 d2 Nh4+ Ke3 Ba3 d1B Nd2 Bac2 Bd5 Be4 Kc5 Bb1 Kc6 Ree8 Nc4+ Kd3 Ne3+ Kd2 Bd6 Qg5 Ba3 Re4 Bf8 Qe5 Ba2 Bdb3 Kd7 Bbe6+ Kc6 Bg4 Bc4 Rd8 c8B Rd3 Bb7 Rc3 Rh3 Ba3 Rc1 e1B Rh2 Bb2 Nef5 Ba3 Kd7 Bb2 Rc2+ Kd1 Ba8 Bc1 Bad5 Qd4 Bf4 Qe5 Bc6 Rfg1 Rb2 f1B Rb4 Rb2 Rb3 Ree3 Bh1 Bfe2 Rb4 Rf1 Rb3 Bgf3 Rb4 Re4 Ne3+ Kd2 Rb3 Rf2 Nf1+ Kd1 Qc6 Bed2 Rb7 Be1 Qb5 Bg4+ Kd8 Rff3 Rc7 Ne6+ Kd7 Bed2 Rb7 Ng7+ Kd8 Bfe6 Rb6 Bf7 Rh6 Ra3 Rh7 Bb4 Rg2 Rac3 Rh2 Nf5 Kc8 Ba5 Kd7 Ng7+
nRn4r/rr3bN1/P2NNk2/rNpQbBRB/7K/bb1P4/1r2r3/3B4 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Nh6 h4 Nd7 h5 Ng8 Bb2 Nb8 Be5 Qd7 Bf4 gxf4 g5 Qd6 Bg2 Nc6 Bf1 Qg6 hxg6 Nb8 Kf2 h5 a4 b5 f6 e5 d3 b3 a5 b2 d6 e3+ Kg2 e2 a6 e1R g7 Kf7 d7 b4 Kh3 f3 Ra5 h4 Ra1 e4 Ra4 f2 Ra2 e3 Ne2 b3 Nec3 e2 Ra5 Ra7 Re5 Ba3 Nb5 c5 Nd2 b1R Ne4 Ne7 g8B+ Kg6 f7 b2 Bg2 f1R f8N+ Kg7 Kg4 h3 g6 h2 Ned6 Kf6 g7 Rf2 Bb3 Ra1 g8B b1R Rg1 h1B Bh3 Bd5 Rg5 Bf7 Ne6 Bb7 d8N Nd7 Ba4 Nc8 Qb3 Ndb6 Ng7 Na8 Nde6 Bd5 Bh7 Rb2 Bg6 Reb1 Bh5 e1B Kh4 Bc3 Bf5 Rfe2 R1g4 Be5 Rb4 Raa2 Qc4 Raa1 Bd1 Raa2 Qd4 Bb3 Qd5 Rc1 Nbd4 Rc4 Rb6 Rb4 Rb8 Rbb7 N4b5 Bb4 Qe4 Ra5 Qd5 Ba3
1Nn2r2/1k2N3/q1qr1nB1/1n3P2/1Bnq1B2/1Kn1P1R1/R2pn2B/3N1Qq1 w - - 0 1 legal: proof: c4 h5 b4 b5 g4 hxg4 e4 a5 e5 axb4 e6 b3 Nh3 b4 Bg2 Ba6 Bf1 Bb5 Ng1 fxe6 Bd3 e5 Bf1 e4 cxb5 e3 f3 Nf6 Bb2 Ra3 Qc1 Nh5 Kd1 Ra4 Qc2 e2+ Kc1 Ra5 Qd1 Nf6 Na3 Rh6 Kb1 Ra4 Bc1 Ra8 Kb2 Ng8 Nb1 Rh8 Na3 e1N Nc2 e5 Bc4 e4 Bf1 e3 Na3 e2 Nb1 Bd6 Qc2 Bc5 Qd1 Be3 dxe3 Qh4 Qc2 Qe7 Qd1 Qd8 h4 g5 a4 c5 b6 d5 a5 Kd7 h5 Kc8 f4 c4 f5 d4 a6 g3 h6 d3 h7 g4 a7 d2 Ra4 g2 Rh5 g3 Ra1 Nf3 Ra3 e1Q Nc3 Ne5 Nce2 Kb7 Nf3 g1N Rh1 g2 Nfd4 Nbd7 Nc6 Ndf6 Rh3 Ne7 Rg3 Nc8 Ra2 Qd4+ Nc3 Rf8 h8B Ne2 Nb8 g1Q Bh3 Qef1 Bg4 Rd8 Bh5 Rd7 Bg6 Rd6 Kb1 b2 Kc2 b1N Ba3 b3+ Kb2 Ne8 Bb4 Na3 Bg7 Nb5 Bh6 Nf6 Bf4 Qf3 Qf1 Qc6 Kb1 b2 Kc2 b1N Nd1 c3 Kb3 c2 Nf2 Ne7 Nd1 Kc8 b7+ Kc7 Nd7 c1Q b8B+ Kb7 Bc7 Rc8 a8N Rf8 Nab6 N1c3 Nd5 Nc8 Ne7 Qa1 Nb8 Nc4 Rg5 Rf7 Bh2 Rf8 Rg3 Rd5 Bf4 Rd6 Rc2 Qa8 Ra2 Qaa6
r1n2r1Q/7N/1rR3PR/2R1p1K1/B4r1q/2qnB3/1r1rPn1B/nBk1N3 w - - 0 1 legal: proof: g4 b5 d4 f5 b4 fxg4 a3 a5 d5 axb4 d6 b3 Nh3 b4 Bg2 b2 Ng1 b3 Bf1 cxd6 Qd2 d5 Qd1 d4 h3 g5 Nd2 g3 Rb1 g4 Ngf3 g2 Ra1 g3 Nh2 Bh6 Nhf3 Bb7 Ng1 Bf3 Nb1 Bg4 hxg4 Bf4 Qd3 Bd6 Qd1 Bb4+ axb4 Qc7 Ra4 Qa5 Ra1 Qd8 Kd2 Kf7 f4 Kf6 c4 d5 b5 h5 g5+ Kf5 g6 Ke4 b6 e5 c5 h4 c6 h3 b7 d3 f5 d4 f6 h2 f7 Qd7 f8R Ne7 c7 Qh3 c8B Nbc6 b8B Nb4 Rf5 Rf8 Ba7 Nc2 Ba6 Nc8 Ra3 Na1 Nf3 g1Q Bb5 g2 Rf6 Qe3+ Ke1 g1R Ba4 Rg4 Rc6 Rgf4 Bg2 d2+ Kf1 Qd3 Nc3+ Ke3 Ne4 b1R Nf6 b2 Nh7 Qc3 Rc5 d3 Qc2 Ke4 Kf2 d1R Be3 Rd2 Bb6 Rc1 Qb3 b1R Qg8 Rbb2 Qh8 Rcb1 Ba7 Rb6 Ra2 R1b3 Rc2 Rb2 Rcc1 Qe6 Kg3 Qeb3 Rhg1 h1N+ Kh3 Nf2+ Kg3 R4f7 Kh4 Rf4+ Kg5 Qe6 Rh1 Qh3 Bf1 Nd1 Bg1 Nf2 Bh2 Ke3 Ne1 Rd1 Ra5 d2 Rc5 Nd3 Rc2 Rc1 Bg2 d1N Bf3 N1f2 Be4 Rd1 Rc1 Kd2 Bf5 Nb4 Bb1 Nbd3 Rc6 Qb4 R1c5 Qc3 Rc7 Kc1 R5c6 Rbb8 Be3+ Rdd2 Rc5 R8b6 R7c6 Qe6 Bg1 Qd7 Rh6 Qh3 Bh2 Qh4+
r1Q5/3qk1Nn/np1N4/1rN1r2n/KB3n1q/BB1n3N/2P1P2n/2rR2R1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 Ba3 g5 Kc1 b6 Kd2 Bd6 Bc1 Bb7 Kd3 Bf3 Kd2 Bg4 h3 f3 Bg2 Bf4+ gxf4 Bh5 Bf1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 a4 d5 g5 h5 g6 d3 g7 b3 Kc3 b2 Kb4 h4 f5 g2 a5 h3 f6 h2 a6 d4 f7+ Ke7 a7 d2 Qe1 d1R Bf4 d3 Nd2 b1R+ Nb3 d2 Nh3 g1N Bg2 f1N Ka4 f2 Nc5 Nf6 Bd5 Rb5 Bb3 Rh5 Be5 Qe8 Bc3 Rc1 Bb4 d1N Qc3 Qd7 Qc4 Na6 f8B+ Kd8 g8N Ng3 Ba3 f1N Nh6 Re5 Nf5 Nf2 Nd6 Nh7 Qg4 Nh5 Qc4 Rb8 a8N Nd3 Nc7 Rc8 Nce8 Ra8 Nf2 Nh3 Ng7 Nh3f4 Rg1 h1Q Nh3 Nh2 Rb1 Rf1 Rd1 Qe4 Rd2 Rc1 Rdd1 Qd4 Bb4 Qf2 Qg8 Qh4 Be7+ Kc7 Qe8 Kc6 Qc8+ Qc7 Bf6 Re7 Bb2 Re5 Nc4 Kd5 B2a3 Qd7 Nb2+ Kd6 Nc4+ Ke7 Nd6 Qe6 Rg6 Qf5 Rgg1 Qd7
q2N3B/1NB3qR/2N1Pb2/4nk2/p1QBbp1P/NR6/1n2Kr1q/r1b3r1 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Na3 Ke5 Nb1 Ke6 e4 c5 h4 f5 b4 a5 e5 g5 b6 c4 b5 d4 b7 c3 b6 c2 Ra3 f4 Ra2 g3 Rh3 g2 Qh5 d3 Ra4 d2+ Ke2 d1R Rc3 g4 Nh3 g1Q Qh7 g3 Qe7+ Kf5 e6 g2 Ng5 Na6 b8N Bb7 Rb3 Nh6 Ne4 Bg7 Be3 c1B Na3 Rg8 Nc5 Rf1 Bd4 Bf6 Nc6 Qh2 Qf8 Qb8 d8B g1Q d7 Nb4 Bc7 Qg7 Qc8 Nd3 d8N Nb2 Bce5 Ra7 Bc7 Ba8 b7 Ng4 Bce5 Ra6 Rc4 Qa7 b8B Bb7 Bbc7 Qa8 Na7 Be4 Nac6 Ra7 Ncb7 Ra6 Bc3 Ra7 Bed4 Ne5 Rc5 Qd7 Rcb5 Rgg1 Rd5 Qg7 Rd7 Qh6 Rh7 Qg7 Nc5 a4 Qa6 Rb7 Qc4 Rb5 Ncb7 Rd5 Bc5 Rdd1 Be3 Bd2 Bed4 Ra1 Bb4 Bc1 Bf8 Qgg2 Bg7 Qg5 Bh8 Qh6 Rg3 Qg7 Rb3 Rxf2+
b2n1Rq1/1b1KN1Rq/n2rPq1P/8/BNB2B1k/1p1N3p/BQ6/1br2r2 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 h4 cxd4 Bb2 a5 Bc1 axb4 Nh3 g5 Ng1 h5 hxg5 h4 g3 h3 g6 Bg7 Kd2 Bf6 Ke1 Bh4 gxh4 Ra7 Kd2 Ra4 Ke1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 b5 Kd5 b3 Kd6 b2 a4 d3 e4 d2 c4 f3 g7 b4 h5 Kg5 e5 f5 h6 f2 c5 f4 c6 f3 c7 Ne7 g8B Nec6 a5 Kh4 a6 Bb7 a7 Na6 Bfc4 f1R c8N f2 Na3 b1B Qe2 d1B Qb2 Bf3 Ne7 Rc8 a8B Bd5 Bf7 Qg8 Bf4 Nd8 Nc2 Rc7 Ba2 b3 Nb4 Rcc1 Ne2 Rh7 Be6 Rg7 Rh2 Rg6 Rg2 Rf6 Rg7 Qh7 Ng8 Bdc6 Ke7 d5 Kd6 d4 Ne7 Bh1 Kd7 d3 Bc4 Rb6 e6 d2 Be3 Qg8 Nf4 d1Q+ Nfd3 Qc2 Bf4 Bhg2 Ne5 Qch7 Ned3 Bbe4 Bb7 Bgf3 Bc8 Ba8 Bb7 Bh1 Bc6 Be4 Ba4 Beb7 Bcb5 Rfe1 Bc4 f1Q Bb8 Qf6 Bf4 Bc2 Rb1 Rh1 Ra1 Rcf1 Re1 Bb1 Re5 Rc1 Rc5 Rhf1 Rf5 Qfg6 Rff7 Qf6 Rf8 Rd6+
1Nb1b3/2Bnq2k/qP5P/1nB1B1r1/2Rrpr1p/1N3R1Q/1B6/1bNq3K w - - 0 1 illegal: No proof kernel
q1n1N3/1rrR2R1/PR2r1qP/2p1Np2/2R3Nn/1q3b2/k2b2Qn/4K1BB w - - 0 1 legal: proof: c4 a5 f4 f5 g4 h5 b4 d5 cxd5 hxg4 e4 axb4 exf5 e6 f6 Na6 f5 exf5 Bc4 Nb8 Bd3 Rh5 Bf1 Rh8 h4 Kf7 d4 g5 a4 c5 h5 b5 d6 Ke6 d7 Kd5 a5 g3 f7 g2 a6 g4 Ra2 b3 Rh4 g3 Qe2 b4 Bb2 Rh6 Rh1 Bb7 Rh4 Nf6 Bc3 b2 Nh3 g1Q Na3 b3 Nc4 g2 Nd6 Nc6 Nf2 Na7 Ng4 Nc8 Ne8 Ra7 Ra3 Bd6 f8N Bf4 Ng6 Be3 Bd2 b1R+ Bc1 b2 N6e5 Ba8 Rb3 Rc7 Rb6 Rg6 h6 Bb7 Nd3 Kc4 d5 Kc3 d6 Bf3 Nde5 Bf4 Rc6 Kb3 Rb6+ Ka2 Qc2 Qe7 d8R Qf8 d7 Bg5 Nf2 Ng4 Qd2 Nh2 Rc4 Re6 Ng4 Qg8 Qd5 Qh1 Qa8 g1N Bg2 Qg6 Qe4 Bd1 Be3 Bf4 Qc2 Bg5 Bb7 Qd5 Qg2 Ngf3+ Kf2 Nh4 Ke1 Bf4 Bg1 Bc1 Bc6 Bf3 Ba8 Nd6 Rdb8 Nc8 d8R Qb7 Rd7 Bd2+ Kf2 Qa7 Bd5 Qa8 R8b7 Rc1 Ra7 b1Q Rg7 Qb3 Rab7 Rcc6 Rbd7 Rb1 Be4 Rc7 Bb7 Bc1 Ke1+ Rb2 Bc6 Bg5 Bb7 Bd2+ Kf2 Qa3 Rc6 Be2 Qf3 Be3+ Ke1 Rb5 Qg3 Qb3 Rcd6 Bg5 Bh1 Rbb7 Rb6 Bf3 Qg2+ Bd2+
R7/1r1krN2/B1Rn1q1b/Rn3qn1/KrNP3P/p4b2/3QR1p1/B1N2r2 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 d4 a5 Kd2 f5 Kc2 g5 Kb3 f3 h4 f2 e4 g3 b6 g2 d6 g4 b7 a4+ Ka2 b3+ Ka3 f4 e5 f3 e6 b2 e7 g3 Bd2 Nc6 b8N Bh6 Be3 Na7 Kb4 Bg4 Bc1 Nb5 Qd2 Nf6 Be2 f1Q Nc6 f2 Ne5 Rb8 Na3 b1R+ Bb2 Bf3 Nf7 Kd7 e8R Ne4 Nc4 Rb7 Ra3 Re1 Ba1 Qf6 Ra8 Rf8 Rh2 Rfb8 Bd3 Re3 Ne2 g1N Nc1 Nh3 Rc3 a3 Ka4 Re1 Ra5 Nhg5 Rc2 Qh3 Rg2 f1R Re2 g2 Rc3 Ke6 d7 Qhf5 d8R Ke7 Rc8 Kd7 Rc6 Ned6 Rb3 Na7 Rbb6 Nab5 Rba6 Rb6 Ra8 R8b7 Rf2 Re4 Re2 Re7 Ne3 Na7 Ba6 Rb3 Nc4 Nab5 Nd8 Rb1 Nf7 Rb4+
1q2B3/Q1N1B1N1/n1b1NN2/r1R1n3/pPR3q1/1KPR3r/n1p2bk1/3r2r1 w - - 0 1 illegal: No possible last move, all moves rejected
2k2qR1/q1n1q1NQ/N1B5/3Prb2/RNbq1Ppr/pR5R/2B1n2K/2r5 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 b3 f5 Bb2 h6 Kc1 f4 Be5 f3 Bf4 Bd6 Bg5 Bf4 gxf4 hxg5 d4 Kd7 Kd2 a5 Ke3 c5 h4 a4 b6 g6 h5 c3 b7 c2 h6 c1R d5 c4 h7 g4 b4 g3 b5 g2 b6 c3 Rh3 g5 Qc2 g4 Na3 Na6 b8R Nh6 b7 Rg8 h8R Rg5 Rg8 Qf8 Qh7+ Kd8 Nc2 Nc7 Nb4 c2 Ra3 Ra7 Rb3 a3 Ra8 Ra6 b8N Bf5 Ra7 Kc8 Ra8 Rb6 Ra4 Rh5 N8a6 Rh4 Rg3 Rg6 Nh3 g1Q Ng5 Rc6 Rh3 Re6+ Kd2 Re8 e4 Re5 Bd3 f1Q Ne6 f2 Ke3 Qd1 Ng7 Qde1+ Be2 Qc3+ Bd3 Qd4+ Ke2 Re7 e5 f1B+ Kd2 Qa7 e6 Re8 Be4 Bc4 e7 Qgd4+ Bd3 Bg6 Ke2 Nf5 Re3 Ng3+ Kf2 Ne2 Kg2 Bf5 Rh3 Rh1 Be4 c1Q Bc2 Rg1+ Kh2 Qce3 Rc3 Rc1 Rb3 Rd8 e8B Qee7 Bc6 Rd6 Nc5 Re6 Nca6 Re5
4BKNR/N1q1b1R1/2P1p3/Pbn1bnqq/1p4qR/1k6/1B3r2/1r2N1NQ w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e4 axb4 exf5 g5 fxg5 h5 Be3 hxg4 Bf4 Ra6 Bc1 Ra8 Ke2 b3 Kd3 Kf7 Ke4 d5+ Ke5 b5 a4 d3 c4 b2 c5 d4 c6 d2 f6 d3 Be2 Ba6 Nh3 b4 a5 g3 Na3 b1Q Nb5 g2 Na7 g1B Bb2 Qc1 Kf5 Rh6 Bh5+ Rg6 Qf1 d1Q Ra3 d2 Rg3 e6+ Ke5 Ke8 f7+ Ke7 Rg2 Rh6 g6 Bb5 g7 Na6 Qe1 Bb6 Qe4 Rf6 Ng1 Nh6 h4 Rf2 Bg6 Qc8 h5 Nf5 h6 Qh5 h7 d1Q h8R Bc5 Rg5 Qdg4 Rh4 Qb7 Qf3 Rd8 Qh1 Rd1 g8N+ Kd8 Kf6 Kc7 Rh3 Bfd6 f8N Be5+ Kf7 Kd6+ Nd7 Qc7 Kf8 Qd2 Rh4 Rb1 Be8 Qdf4 Rg7 Qfg5 Qh2 Kd5+ Re7 Kc4 Qh1 Bh2 Ne5+ Kb3 Nef3 Be5 Ne1 Bcd6 Ba3 Nc5 Bc1 Bf6 Bb2 Bde5 Rg7 Be7+
3NR3/3Q1q2/KP1R1nNp/1B6/br1R1PNr/2n1Nk2/1rp5/r2qBnb1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 f4 Kd6 g4 e5 d4 c5 b6 h3 g5 h2 g6 c4 g7 c3 Qd2 b3 Ra5 b2 Na3 b1R Ra7 c2 Ra6 e3 Kd3 e4+ Kc4 e2 Bh3 e1R Bf1 e3 Nh3 e2 Ra4 Nf6 g8N Nc6 Nf2 Na7 Ne7 Qe8 Ng6 Qf7 Ng4 Rb2 Qd3 Bf5 Bd2 Ra1 Be1 Bd7 Rg1 h1N Rg3 h6 Re3 Nb5 Re8 Ng3 Qd2 Nc3 Qd1 Rba2 Kb4 Rd8 Ka5 Rg8 Ka6 Rb2 Rb4 Ba4 Nc4+ Kd7 d6 Kc6 d7 Kd5 Qd2 Bc5 Qd3 Rc8 d8N Rc6 Qd1 Re6 Nce3+ Ke4 d5+ Kf3 d6 Re4 d7 Rc4 Nf5 Bg1 Nfe3 Re4 Rd4 Rg7 Rd6 Reb4 Ne6 Rg8 d8R Rg7 Rd4 Rg8 R8d6 Rg7 Bh3 Nf1 Nd8 Rg8 Qd3 Rg7 Qb5 Rg8 Qd7 Rg7 Bh4 e1Q Bg3 Qd1 Be1 Ng3 Bf1 Rg8 Bc4 Nf1 Bb5 Rg7 Ne7 Rg5 Ng6 Rh5 Ka5 Rh1 Ka6 Rh4
1rRNK3/B4nN1/Npr1b1b1/kPp2B2/q2q4/3B1P2/QR1q4/rq2n2N w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 Qb3 gxh4 Qa4+ Qd7 Qd1 Qd8 a3 a5 b3 Bg7 Ra2 Bc3 Ra1 Bb4 axb4 a4 Be2 axb3 Bd3 Bg4 Bf1 Bc8 Ke2 Kd7 Ke3 e5 d4 h5 g4 b2 g5 h3 g6 h4 d6 Kc6 d7 Kb6 d5 c6 g7 h2 f3 h3 b5 Rh6 d6 Na6 Ne2 Nc5 Ng3 Nd3 Qb3 Ne1 Nd2 b1B Qa2 Rb8 Bd3 Rg6 Bb2 Nh6 g8B Nf7 Nb3 Re6 Rf1 h1Q Nc5 h2 Na6 c5 Bh7 Qg1+ Rf2 h1Q Bf5 Qdh4 d8N Qg4 d7 Rc6 Ne6 Qhh4 Ba3 Ka5 d8N b6 Ng7 Be6 Nh1 Qf1 Rb2 Qf6 Kd2 e3+ Kc3 Bc2 Rd1 Qa4 Rd2 Bb1 Rh2 e2 Rh8 Bd7 Re8 Qd6 Rf8 e4 Re8 e3 Rh8 Qd1 Kc4 Qf4+ Kd5 Qfa4 Rg8 Qd2 Re8 Qg1 Rg8 Rf6 Rf8 Be6+ Kc6 Qgg4 Rh8 Qgd4 Kc7 Ng2 Rg8 e1Q Kc6 e2 Kc7 Bd5 Kd7 Rc6 Ke8 Be6 Bh7 Nh6 Rb3 Qdc4 Bb2 Bf5 Bc2 Qcd5 Kf8 Bd7 Be5 Nf7 Rb2 Rbc8 Bb8 Q5d4 Ba7 Rb8 Bhg6 Bc8 Nde6 Qeg1 Ke7 e1R Rd8 Bd7 Rc8 Rc1 Nd8 Be6 Bce4 Bd3 Kf8 Ra1 Ke8 Qb1 Bh7 Ne1 Beg6 Bdc4 Bc2 Bf5 Bd3 Bce6 Bg6 Bg4 Bge4 Bh5 Bf5 Bg6
1nQ4R/3q3P/q1n5/4r1p1/1B1R1Bbk/RqbNPr1N/KRNp2b1/1b6 w - - 0 1 illegal: No possible last move
3qn2q/q4p1R/bP4Bp/4N3/1bPn3Q/1k1nrNKr/1B2B2B/2qN2R1 w - - 0 1 illegal: No possible last move
QN6/2B1Pbq1/2n5/n1r1p2b/N2N2rP/pR4RB/R2qKn1k/Rq1q4 w - - 0 1 illegal: No possible last move
r3B3/1rp2P2/BNnpQ1r1/3R4/1PN1b1Rr/2Kq1q1b/B4nb1/2B2Nk1 w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 exf5 g5 c3 gxh4 Bb5 b3 Bb2 Bg7 Ba4 b5 Ba3 b4 Bc1 b2 Bb5 b3 Bf1 Be5 Rh3 Bd6 Rh1 Bb4 cxb4 Ra7 Rh3 Ra6 Rh1 Ra8 f4 Kf7 g4 Kf6 a4 h5 a5 e5 a6 h3 a7 d6 Ke2 e4 Ke3 h4 Kd4 e3 Ra5 h2 Na3 b1B Qe1 b2 Nc4 e2 Kc3 h3 Rd5 Qf8 Nf3 Nc6 Rg1 h1B Nh2 Bbe4 Rg2 Rb8 a8B b1Q Bb7 Nh6 Ba6 Rb7 g5+ Kf7 f6 Ke6 g6 Ng4 f7 Nf2 Rgg5 Bhg2 g7 Rh6 g8B Rg6 f5+ Kf6 Nf3 h2 Rg4 h1R Nh2 Be6 d3 Qa8 f8N Bd7 Rf4 Kg5 f6+ Bdf5 Rg4+ Kh5 Rg3 Kh4 Rg4+ Kh3 Nd7 Qf8 Ndb6 Bc8 Qd1 e1R Qb3 Re2 Bf7 Ra2 Be2 Ra5 Nf1 Bd7 Ng3 Kh2 Nf1+ Kg1 Bd1 Qa8 Be8 Rh4 f7 Ra4 Rg3 Bh3 Rg4 Qc8 Qa2 Qf5 Bb3 Qf3 Qe2 Ra5 Ba2 Ra4 Bb5 Ra8 Ba6 Bf5 Qe5 Be4 Qe6 Qbxd3+
Qb1B3B/1P2R1q1/1q1q2R1/2nP4/Nr3pBK/r1prB1n1/4rRb1/4N2k w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 h4 f3 Kf2 Kd7 Kg3 Kd6 e4 Ke5 b6 f5 b7 c5 d6 g5 d7 f4+ Kh2 g3+ Kh3 c4 h5 f2 h6 g4+ Kg2 c3 h7 b3 d3 b2 Ra3 Nf6 Qf3 Nh5 Be2 f1R Ra2 Re1 Na3 b1R Qf2 Na6 Qa7 Bd6 Rh4 Qe7 d8B Bb8 Rh2 Rg8 h8B+ Qf6 Bf3 Rb4 Re2 Be6 Bd2 Bd5 d4+ Ke6 e5 Kf5 Bc1 Qd6 e6 Rd1 e7 Rd3 Re4 Re8 Re6 Be4 d5 Kg5 Kf1 g2+ Kf2 Kf5 Nc4 g3+ Ke2 Kg5 Nb2 Kf5 Nh3 g1Q Ng5 Qgc5 Rf2 Qcb6 Kf1 Nc5 Kg2 Ng7 Kh3 g2 Rh6 g1Q Kh4 Nh5 Bd1 Bh1 Nf3 Ke4 Ne1 Qg7 Rg6 Ng3 Bg4 Bf3 Qa4 Ra5 Qc2 Ra1 Qa4 Ra3 Qa8 Bh1 Rd2 Ke3 Na4 Bg2 Rb2+ Rd2 Rc2 Kf2 Rb2 Kg1 Ra2 Rf8 e8R Rd3 Rf2 Kh1 Re3 Rf6 Re7 Re6 Bd2 Re2 Bc1 Qdc6 Be3 Qd6
R3K1q1/2r1R3/2rpP3/2pN2BQ/N5n1/RqBknq1R/P3b1q1/4qn1B w - - 0 1 legal: proof: g4 a5 f4 e5 b4 exf4 c3 h5 gxh5 axb4 d4 Bc5 d5 Bb6 d6 bxc3 Qc2 c6 Qd1 Bc7 dxc7 Ra3 Qb3 Ra6 Qd1 Ra8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 h4 Ke4 e3 f5+ Kh3 g5 h6 b5 h7 c5 h5 f3 h6 d6 Qa4+ b4 Bb5 c2 Ne2 f4+ Bd7 g4+ Kh2 f2 Bc6+ Kd3 e4 f1Q e5 f3 Kg3 f2 Kf4 g3 Nec3 g2 Nd5 g1Q Nbc3 Nd7 Kf5 b3 Ke6 b2 Kf7 b1Q Qg4 Ne7 Na4 Ba6 c8R Ra7 Ra8 Qgg2 Qh5 Rc7 Bg5 Nf5 Rh3+ Ne3 e6 Qbd1 Rb1 c1Q Rb7 Qb3 Rba7 Rg8 h8R Qce1 h7 Qfe2 Rf3 f1N Rg3 Qc8 Rh3 Rd8 Re8 Nf6+ Re7 Ng4 h8B Qef3+ Bhf6 Rdd7 Bb7 Qh8 Bc6 Qg7+ Ke8 Bc4 Bb7 Rc6 Bc3 Ba6 Nab6 Bc4 Ra3 Rdc7 Na4 Kc2 Bd2 Be2 Bc3 Kd3 Bh6 Qh2 Qg6+ Qe4 Nf6 Ra6 Bg5 Qf4 Bd5 Rac6 Qh5 Qh1 Bg2 Qf3 Nd5 Qh2 Bh1 Qhg2 Bb4 Qh7 Bc3 Qg8#
1rN2NqB/2K2p1n/bBq1PR2/2q1k3/3rn3/2n2Bn1/n1RPp2N/1B3Q2 w - - 0 1 illegal: No possible last move, all moves rejected
3NR3/P2nRn1r/2n1rPRN/1k1K2Br/p5Qr/1B5q/p1r4R/b5qN w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 d5 cxd5 f5 e4 fxe4 b5 b6 Nc3 Ba6 bxa6 b5 Nb1 bxa4 Ke2 Kd7 Ke3 h5 Kd4 c5+ Ke5 h3 d4 h2 f4 h4 g4 h3 f5 a3 d6 Kc6 d7 c4 d5+ Kb5 a7 e3 g5 a4 d6 a2 g6 e2 g7 e1R+ Qe2 Nf6 g8N Bg7 Nh6 Nc6+ Ke6 Qc8 Be3 Rh7 Qg4 Qh8 d8R Nd7 Bd3 Rc8 Kd5 e5 Nf3 e4 Bc2 c3 Bg5 e3 Bb3 e2 Nbd2 c2 Rg8 c1N Ne5 Nd3 Nef7 N3e5 Nd8 Nf7 Ne4 Bc3 Rc1 Ba1 Ng3 Qc3 f6 Rc7 Rg1 h1R Re8 h2 Re7 Qe3 Rc2 Qf3+ Ne4 Qh3 Ng3 Rc8 Nhf5 Rh4 Nh6 Rc7 Rg2 Rc1 Rb2 e1R Rbd2 Re6 Rb2 Rhf1 Nh1 Rc2 Rg3 Nde5 d7 Rf5 Nf2 h1Q+ Rg2 Q1h2 Nh1 Qg1 Rg3 Rc4 Rh2 Rc3 Nb7 Rc1 d8R Rc2 Rde8 Rd7+ Ke4 Rc7 Nd8 Rb7 Kd5 Rc7 Bd2 Rfh5 Bg5 Nd7 Rg8 Re4 Rg6 Re1 Rge3 Ree2 Re8 Rb7 R3e7 Re6 Nf2 Rc7 Nh1 Nd6 Rh7 Ndb8 Qe4 Rf7 Qg4 Nd7 Re7 Rg7 Rh8 Rh7 Rhe8 Nf7
2nk2qn/1rr2bB1/3B1R2/4rn1N/2P1p1Pp/qR1NR2N/6KQ/qNn5 w - - 0 1 legal: proof: a4 c5 f4 f5 e4 b5 axb5 g6 d4 cxd4 g4 Bg7 Bc4 Bh6 Be6 fxe4 f5 Be3 f6 Bf4 Bf5 Bg3+ hxg3 gxf5 Kf1 h5 b4 d5 c4 e5 b6 a5 b7 d3 g5 e3 g6 f4 g7 d2 g4 f3 b5 a4 b6 d4 Rh4 f2 Ra3 e2+ Kg2 e1N+ Kh2 f1Q Ra2 d3 Qf3 d1R Qg2 d2 Rb2 e4 Rb4 a3 Qf2 a2 Nh3 a1Q Kg3 Nd3 Qe1 Ra7 Ba3 Rh7 Qe2 Nd7 b8N Nh6 g8N Rb7 Nc6 Nf7 Bb2 Nh8 Qh2 Nc1 Rb3 Qd3+ Kg2 Re7 Bc3 Re5 Nb4 Rh1 Bd4 d1N Bb2 Qd6 Nd3 Qda3 Bc3 Rc7 b7 Nb6 b8B Be6 f7+ Kd7 f8R Bf7 Bd4 Nc8 Nf6+ Ke7 Bc3 Qe8 Bd4 Kd8 Bb2 Rb7 Bd6 Rf1 Nd5 Rff5 N5f4 Ree7 Bg7 Rec7 Kg3 Re5 Kg2 Be6 Rf6 Bf7 Nhf2 Qf8 Rh3 h4 Nh5 Qe8 Rg3 Qg8 Nh3 Ne3+ Kh1 Nf1 Re3 Ng3+ Kg2 Nf5
1K3R2/2N1Br1n/3Pp3/nN4R1/np1n1q2/B3qPR1/RQqB3k/r1b1r3 w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b4 axb4 Be2 Bf5 Bg4 hxg4 e5 Be4 f4 Bf3 e6 fxe6 gxf3 e5 Kf1 e4 Kf2 Kf7 Ke1 Ke8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 g5 h4 b3 h5 e3 a5 c5+ Ke4 b2 d4 g3 f5 g2 f6 b4 h6 e2 h7 e1R+ Qe2 g4 a6 c4 f7 e6 a7 c3 Rh5 c2 Rg5 g3 Ra2 Nc6 Nc3 b1N Ba3 c1Q Nh3 g1N Nf4 Bh6 f8R g2 Rg3 Qh4 Nb5+ Kd7 d6 Na5 Ke5 Nc3 d5 Na4 Rf5 Nf6 Rfg5 Rhf8 h8B Nh7 Bf6 Qc2 Be7 Rac8 a8R Rf7 Rb8 Rc7 Rf8 Ra7 Nh5 Qg4 Ng7 Qgc4 Ne8 Ra8 R5g4 Bc1 Rg5 Qg4 Nec7 Qh4 Qe3 Ne2 Qc3 g1Q Qb2 Qa7 R5g4 Qb6 Bg5 Ra7 Bd2 Nd4+ Re4 Nf5 Rgg8 Nh6 Ne8 Rd1 Reg4 Qbc5 R8g5 Nf5 Ra1 Kc8 d7+ Kb8 d8B Nc4+ Kf4 Nc3 Be3 Re1 Be7 Kc8 Bd2 Kd7 Qa2 Ra4 Bb2 Na5 Qb1 Ra2 Ba3 Na4 Qb2 Qcf2 Be3 Nd4+ Ke5 Kc8 Kd6 Kb7 Bd2 Qe3 Kd7 Kb6 Ned6 Kc5 Ne8+ Kc4 Kc8 Kd3+ Nec7 Ke2 d6 Kf1 Rg3 Qhf4 Kb8 Kf2 Rb1 Kf1 Qc3 Ra1 Rb2 Ke2 Ra2 Kf2 Qb2 Kf1 Rc5 Kf2 Rh3 Kg2 Rg3+ Kh1 Rcg5 Kh2
q2qB1RB/5Q1R/P2N2pr/Nr1n3N/2q2Nn1/1P2p2r/KnB1b2n/4k3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 g5 f5 g6 fxe4 Qh5 hxg6 Qe2 g5 Qd1 g4 Kd2 a5 Ke2 b4 Ke1 b3 axb3 a4 Bh3 e6 Bf1 a3 Nd2 a2 Nb1 Ba3 bxa3 Rh7 Bg5 Rh4 Bc1 Rh8 Kd2 Ke7 c4 Kd6 Kc2 Kc5 Kb2 d5 h4 d3 f4 Kd4 f5 g6 c5 g3 c6 e5 h5 g2 c7 e3 f6 e4 f7 d2 f8N e2 h6 Kd3 a4 e3 h7 d4 a5 Nh6 Ka3 Bg4 c8B Na6 Bb2 Nc7 Ne6 Nd5 Bd7 Rb8 Nh3 g1N Ng7 Rb5 Nh5 Nf3 Be8 Nh2 Qc1 d1N Nd2 Bf3 Qc7 N6g4 Qf7 Kc2 Bg2 e1R N3f4 d3 Nc4 Be2 Be4 Qa8 Be5 Nb2 a6 Rc1 Na5 Kd2 Bg7 Rg1 Rc1 Rg3 Rc8 Rh3 Bd4 Bf1 Be5 Ke1 Rd8 d2 Bc2 d1Q Bd4 Rg8 h8N Qd3 Be5 Qc4 Qb7 Rg3 Bc6 Nc7 B2e4 Nd3 Nf6 Nf3 Nf7 Rh8 Rg8 Rh5 Rh3 Be2 Be8 Nfh2 Rh4 Rh3 Qa7 Rg5 Rh7 Rgh5 Ba1 Rh6 N6h5 Nc5 Bb1 Na4 Bh8 a1Q+ Ba2 Qf6 Bb1 Qb8 Ka2 Nd5 Nd6 Qa8 Bc2 Nb2 Qf7 Qfd8
rR1B1q1k/1bnP1n2/7q/1bR5/6BR/3pN1NQ/P1R1bB1p/qKbn4 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b3 a5 b4 axb4 d4 d5 c4 c5 Kd2 b5 Ke2 Ra6 Ke1 Rd6 Be2 cxd4 Bf1 d3 Be3 d4 Bc1 Rd5 cxd5 Be6 Qg4 Bd7 Qd1 Bc8 Kd2 Kf7 g4 Kg7 f4 e5 d6 h5 g5 b3 d7 b4 g6 e4 Qe2 h3 Nf3 h2 Nh4 b2 Ng2 h4 Qg4 b3 Ne3 h3 Nc3 b1B Ne2 b2 Ng3 Ba3 Be2 Nh6 f6+ Kg8 g7 Bb7 f5 Nf7 Qh5 Qf8 Bg4 Na6 Kd1 d2 Qh4 Nh6 f7+ Kh7 g8R Bd3 f6 b1B Qh5 Bb5 Rg5 B1d3 Rc5 Be2+ Kc2 d1N Kb1 d3 Bb2 Rg8 Bd4 Bc1 Rc2 Kh8 Qh4 Qa8 f8R Nc7 Rb8 Rc8 Qh5 Qa3 Bb6 Qf8 f7 Rd8 Ba5 Re8 Be1 Rc8 Bf2 Rd8 Re1 h1Q Qh4 h2 Qh3 Qf3 Rf1 Qg7 f8B Qff7 Nd5 e3 Be7 Qff8 Re1 Rc8 Bd8 Qh7 Rg1 Nf7 Rg2 Qhh6 Rc4 Bf1 Re4 e2 Ne3 e1Q Rc4 Be2 Rc5 Nd6 Rh5 Qg8 Rh4 Qf8 Bg1 Qc3 Ra8 Bef3 Rb2 Bh1 Bf2 Nf7 Rd2 Ba3 Rb2 Qd4 Kc1 Bhf3 Rb1 Bd6 Rd2 Be2 Rbb2 B7a6 Kb1 Bb7 Rb4 Rb8 Rc4 Ba3 Rdc2 Bc1 Rc5 Bg2 Ra7 Ra8 Rb7 Qe5 Rb8 Bb7 Rh5 Qd4 Rh4 Qa1+
NNB2B1R/pK6/1q2n3/1Q1pB3/2n3P1/qB2Rq2/3N1nPb/1nk2rbb w - - 0 1 legal: proof: d4 c5 a4 b5 f4 bxa4 e4 g5 h3 gxf4 e5 Na6 Na3 d6 Nb1 Bg4 hxg4 Rb8 Ke2 Rb6 Kf2 d5 Ke1 Rd6 exd6 cxd4 Ke2 Kd7 Kf3 Ke6 c4 Ke5 b4 f5 b5 h5 b6 a3 b7 h4 b8B a2 c5 d3 c6 Kd4 c7 e5 c8B d2 d7 h3 Rh2 e4+ Ke2 e3 Kf3 e2 Qa4+ Kd3 Qa5 Kc2 Qc7+ Bc5 Rh1 d1Q Bb7 e1B+ Be2 h2 Bc6 Bg3 Bb7 Nf6 Nd2 Rf8 Bc8 Ne4 Ba3 Nf2 Qb7 Qb6 d8N Nc7 Nh3 Ne6 Be5 Bd4 Rb1 a1Q Rb3 Be3 Bad6 Kc1 Ng5 Qa3 Nc6 Bd4 Re3 Rf6 Re1 h1B Nb8 Bh2 Bf8 Bc5 Rg1 Qf1 Bd1 Qfd3 Rf1 Qdc3 Ke2 f3+ Ke1 f4 Bb3 Nd1 Qa6 f2+ Ke2 Rf7 Re1 f1N Qb5 Rf5 Rh3 Bcg1 Rh8 Ne3 Kf3 Nc4+ Re3 Nf2 Ke2 Ng7 Ne6 Rf6 Nc7 Ne6 Na8 f3+ Kf1 Nh3 Ke1 f2+ Ke2 f1N Bd1 Qcd4 Bb3 Qf4 Kd3 Nf2+ Kc3 Qb2+ Kb4 Qf3 Ne4 Nfd2 Ka4 Nb1 Nd2 Nf4 Kb4 Qa5+ Kc5 Ne6+ Kc6 Qaa3 Kb7 Qd4 Kc6 Qb6+ Kd7 Qe4 Ba6 Nh3 Kc8 Rf1 Bb7 Nf2 Ba6 Qf3 Bb7 Ng5 Ba6 Qe6+ Kc7 Qef6 Bc8 Qd8+ Kc6 Ne6 Kb7 Qb6+
3rRNK1/p1kpB2n/n1n1PN2/P3RN2/3rb1R1/1rB5/2Q4b/1Nbnn3 w - - 0 1 legal: proof: b4 b5 g4 c5 bxc5 g5 a4 e5 d4 exd4 a5 f5 Bg2 fxg4 h4 g3 Bd5 g4 Bb3 Qf6 Ba4 Qg5 hxg5 bxa4 Kd2 Kd8 Kd3 h5 Ke4 a3 Ke5 g2 e4 a2 f4 h4 c4 h3 c6 g3 f5 h2 c5 d3 f6 d2 f7 Ne7 Kf6 Bb7 e5 Rh3 c7+ Kc8 g6 Nbc6 g7 Rh4 g8N Nb4 e6 Rh8 Nh3 g1N Ng5 g2 Nh7 Bh6 f8B Rb8 Kf7 Nec6 Ngf6 Nf3 Qc2 d1N Re1 h1R Bd2 g1B Bc3 Rh4 Re5 Rd4 Be7 Bh2 Nf8 Bc1 Kg7 Ba8 Kf7 Kb7 c8N Kc7 Nd6 Na6 Nf5 Ng5+ Kg7 Rh3 Kg8 Bb7 Qb2 Rd8 Qc2 Ncb8 c6 Nh7 Bb2 Rb3 Bc3 Kc8 c7 Be4 Ng3 Kb7 c8R Nc6 Ra8 Kc7 Nf5 Rbb8 Nd2 Rb7 Rb1 a1N Rb4 Rb6 Nb1 Rb5 Qg2 Nc2 Ra4 Ne1 Qc2 Rb3 Rc4 Rdb8 Ra4 R8b7 Re8 Rb8 Rb4 Rd8 Rc4 Rd6 Rb4 Bf3 Rh4 Rd4 Rg4 Be4
2B2Q2/4r1bp/R2b4/3n4/1q1Nrr1N/NbBbb1P1/kp3BrP/5KRN w - - 0 1 legal: proof: b4 d5 a3 b5 a4 c5 axb5 cxb4 f4 a5 e4 dxe4 f5 Na6 f6 gxf6 bxa6 f5 Ra3 f4 Ra4 Qd7 Ra1 Qd8 d4 Kd7 c4 Ke6 a7 f5 g3 e3 c5 Kd5 c6 e5 c7 a4 Bd2 b3 Bh3 Kc4 d5 e4 d6 e2 d7 a3 Bg4 f3 Bb4 f4 Bd2 a2 Be3 f2+ Kd2 f1R Bf5 e1B+ Ke2 Bd2 Bg4 Ne7 Bf5 Nd5 Nh3 Qh4 d8B Be6 c8N Bd6 Nc3 Re8 Ba5 Re7 Bf2 e3 Nb1 Rg1 Bc3 Rg2 Kf1 f3 Rg1 Qe4 Be1 f2 Qf3 Rb8 a8N Rb4 Nc7 Qd4 Ke2 Qg4 Nb5 f1B+ Kd1 Bg8 Nf2 Bd3 Nh1 Bc1 Bf2 e2+ Ke1 Be3 Bd7 Qd4 Qf8 Qc5 Bf6 Ra4 Bc3 Qb4 Bf5 Re4 Ne7 Rf4 Qd8 Ra7 Ng6 Re7 N1a3+ Kc5 Qd7 Nf6 Be4 Bd4 Nc2 Kc4 Bf5 Bd5 Kd2 e1R Qd8 R1e4 Nh4 Be3+ Ke1 Bg8 Bc8 Bf7 Rd1 Bd5 Qf8 a1B Bd2 Bc3 Ra1 b2 Ra6 Kb3 Nba3 Bce5 Bc3 Ka2 Nd4 Bb3 Bh3 Nd5 Bc8 Bdc2 Ke2 Bg7 Kf1 Bd3+
5r1n/2Bp1Q2/1b1pn2P/1R1NRRb1/1N3R1P/k2rb1bb/1r5K/1BNb4 w - - 0 1 legal: proof: f4 e5 g4 b5 a4 h6 h4 Ne7 axb5 exf4 d4 Ng8 d5 Qe7 d6 cxd6 Qd5 Qe5 Qc5 Qh5 Qg5 hxg5 gxh5 Kd8 Bg2 Ke7 Bf1 Ke8 Kf2 Ke7 Kg2 a5 b4 f5 c4 f3+ Kh2 f4 e4 g4 b6 g5 b7 f2 c5 f3 b5 g3+ Kh3 a4 e5 g2 c6 a3 b6 a2 h6 g4+ Kg3 Ra3 c7 Rd3 e6 Na6 b8N Bb7 c8Q Nc7 Be2 f1R Rh2 f2+ Nf3 g1B Kg2 g3 Kh3 g2 Be3 Ba6 Nc3 Rb1 b7 f1B Bd4 Be3 Ng1 Rb2 Bb6 Bb5 Bf3 Ba4 Na6 Bd1 Nge2 g1B+ Kg3 Bh3 b8R Bg7 Be4 Bf6 Rf2 Bfg5 Rf5 Bgf2+ Kh2 Rb3 Rb1 a1B Ba5 Rb2 Rb4 Bb6 Qb7 Kd8 Nd5 Ne7 Qc6 Rf8 Qc4 Ng6 Nc1 Nh8 e7+ Kc8 e8R+ Kb7 Ree5 Ne6 Qa2 Kc6 Rc4+ Kb5 Nab4 Bbe3 Bc7 Bb6 Bg2 Bfe3 Rcf4 Bf2 Qc4+ Ka4 Be4 Ka3 Nc6 Re2 Rb5 Bad4 Ncb4 Ra2 Rc5 Rb2 Rb5 Rf3 Bb1 Rd3 Qc2 Bfe3 Qe2 Bf2 Qh5 Bde3 Qf7 Bg3+
2B5/r4qq1/1RK2Bkq/1rP3nr/P2B1RN1/pq2N2p/bR1Qr1n1/7R w - - 0 1 legal: proof: f4 e5 d4 exf4 a4 g5 h4 gxh4 a5 c5 Ra2 cxd4 Ra4 Na6 Ra1 Nb8 b3 b5 Ra4 Bc5 Ra1 Bb6 axb6 a5 Na3 a4 Nb1 a3 Qd3 Qc7 Qd2 Qa7 Qd1 Qa4 bxa4 Kd8 Rh3 Ke7 Rh1 Ke8 Kd2 h5 Kd3 f5 e4 Kf7 c4 d5 g4 f3 g5 f2 b7 h3 c5 h2 e5 b4 e6+ Kg6 e7 h4 e8R b3 Ra2 f4 Qe2 f3 Qc2 b2 Be3 Nd7 b8B Ne7 Nh3 Nf5 Qd1 Nf6 Bd6 Rh5 Qc1 Ne4 Rh8 Ra7 Bb8 Be6 Bef4 Ne3 Re8 Ng2 Nd2 b1R Bfe5 Rb5 Nc4 Bf7 Be2 f1R Qd2 f2 Bf6 Re1 Rf8 f1Q Ne3 Qf3 Bf1 Re2 Nf2 h3 Bbe5 Qg4 Rg1 h1Q Rb2 Qh2 Rb8 Qhf4 Rh1 Bg8 Rf8 Qe6 Nfg4 Qf7 Bh8 Qg7 Bf6 Qfc7 Rb8 Qcf7 Rb6 Ng3 Kc2 d3+ Kc3 Ne4+ Kd4 Qh6 Ke5 d4 Bhg7 Qf8 Bh8 Ba2 Bhg7 Qf7 Bh8 Ng3 Kd6 Ne4+ Kc6 Qfg7 Qc3 d2 Qa5 d1Q Qd2 d3 Bd4 Qf7 Bhf6 Rf2 Be2 Qe1 Bd1 Qfg7 Bb3 Re2 Be6 Qf1 Bc8 Kf7 Qa5 d2 g6+ Kf8 Qb4 d1Q Qc3 Ng5 Qd2 Qe7 g7+ Kf7 g8R Qb3 Rd8 Kg6 Re8 Qef8 Re4 Qf5 Rf4 Qfg7 Be7 Qff8 Bef6 Qff7
Nbn3rN/NNn5/R2pq1bK/b7/3qPB2/pRQ1n1Pn/1Rb5/4Bk2 w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Bg2 cxd4 Be4 e5 Bd5 e4 Bc4 g3 Bd3 exd3 Ra6 g5 Nf3 g2 Na3 g1B Nd2 g4 Ra4 a5 Nf3 g3 Nb1 g2 Ra1 Ra6 Nh4 Rg6 Nf3 Rg3 hxg3 Qg5 Ra2 Qf6 Ra1 Qd8 Kd2 Ke7 c4 Ke6 b4 Kf5 e4+ Kg4 b6 h5 c5 a4 b5 h4 b7 h3 b6 h2 c6 Kh3 c7 Na6 b8R Rh4 b7 Qf6 Nc3 Rg4 Qe1 Nb4 Ne5 Qf7 f4 Nd5 f5 Bd6 f6 Nge7 Nb5 Rg8 Ng6 a3 Na7 Bf2 Rb1 g1Q Nh8 Kg2 Rb2 Qe8 Qe3 Kf1 f7 Be5 f8N Be1+ Kd1 d2 Ne6 Qg6 Nd8 Qa6 Kc2 d1N Bd2 d3+ Kc1 Qg6 Ba5 d2+ Kc2 N1c3 Kd3 d1B Qc5 Nb5 Bc3 Bf2 Be1 Bc2+ Kd2 Qf7 Qb4 Bb6 Qc3 Kg2 Ke2 Qd4 Rf1 h1N Rf6 Kg1 Kf3 Bf4 Rg6 Kf1 Kg4 Ne3+ Kh5 Qa2 Rc6 Ba5 Ra6 Bd6 Kh6 Nf2 Ra8 Nh3 b8B Bb7 c8N Bc6 Nb6 Nc8 Bc7 Qb3 Rb8 Qe6+ Kh5 Bf4 Na8 Bd6 Rbb6 Bf4 Nb7 Bd6 Bd8 Bb8 Bg5 d6 Bf4 Nc7 R6b3 Be8+ Nf7 Qf5+ Kh6 Qfd5 Nh8 Bg6 Ra2 Q5c4 Rab2 Qe6
2b1R1B1/1B4k1/qP3N2/bK1P1r1b/6qB/2q2Q2/2pnp2R/N1B1rbNq w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 b5 a4 g5 hxg5 f5 g6 f4 g5 Nc6 c3 Nd4 c4 bxc4 f3 Nb5 axb5 Bg4 Be2 Bxf3 Bd3 Bg4 Bf1 Bc8 Ke2 a5 d4 h5 b4 e5 d5 c5 b6 e3 g7 Kf7 b7 c3 Kd3 c2 Kc4 e2 b8B e1Q b5 h4 b6 f3 Be3 c1Q+ Qc2 a4 Bd3 e4 Be5 a3 Bc3 f2 Kb5 f1B Bed4 h3 Qb3 h2 Be3 c4 Qb2 a2 Ne2 Nf6 g8B+ Kg7 g6 Bb4 Qa3 Ba5 Bf7 Re8 Bed2 e3 Ng1 e2 Be3 Re5 Bg8 Ne4 Nd2 Qg5 Nb3 Nd2 Bb4 c3 Be7 Qf4 Bh4 c2 Bf5 Qb1 Bd7 Qb2 Bc6 Rf5 Bb7 Qg4 Beg5 Qc3 Be3 Nc4 Bc1 Ra6 Be7 Nd2 Bh4 Kh6 g7 Qd1 Rb1 a1Q Qf8 Qa2 Na1 Ra8 Rb4 Qac4+ Ka4 Qa6 Re4 Kg6 Be6 Qe1 g8N Kh7 Nf6+ Kg6 Qb4 Kg7 Bg8 Ra7 Re8 Qd1 Nh3 Ra8 Qe4 Qe1 Rg1 h1B Rg2 Ra7 Rh2 Bf3 Bg5 Qeh4 Ng1 Qhh3 Bh4 Qhg2 Re6 Qh1 Re5 Qg3 Re8 Bh5 Ba8 Rf7 Bb7 Qg4 Qf4 Bg2 Qe4 Rf1 Qf4 Re1 Qe4 Bf1 Qf4 Qa8 Kb5 Rf8 Qf3 Qa7 Nh7 Rf5 Nf6 Qa6+
B3N1q1/N4b1b/3b1p1r/B1Rn1Pbq/2QqBBb1/3Kp3/1k1P1q2/R1N5 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 g5 dxe4 g6 f6 c3 bxc3 Bb2 e6 Ba3 Bc5 Bc1 Bf8 h4 b5 Rh3 Nc6 Bd3 Ne5 Rh1 Kd7 Qe2 Nf7 gxf7 g5 Qd1 g4 Bc4 Ra4 Bf1 Rd4 Bb2 Rd5 Bc1 Rg5 hxg5 Qe8 Nf3 Qe7 Ng1 Qd8 Ke2 Kd6 f4 Kd5 a4 Kc4 a5 c5 g6 h5 g7 e5 a6 h4 a7 h3 a8B e3 Bb2 c2 Bc1 Kb3 Bc6 e4 Ra5 h2 Qe1 g3 Ba3 c1B Bd7 c4 Ra7 g2 Bf5 c3 Ra8 b4 Ra7 c2 Qh4 Rh6 Nc3 Ne7 g8N Nd5 Nf3 g1Q Nb5 Qg3 Bh7 Bg4 Ra5 Ka2 Bg6 b3 Bb4+ Ba3 Bg2 c1Q Nd6 b2 Ne7 b1B Rc5 Kb2 Nec8 Qc7 Rg1 h1B Ne8 Qe5 Na7 Qh3 Ba5 Qc4+ Ke1 e2 Nd4 Bg7 f8B Qa2 Bd6 Bb4 Qf2 Qhh5 Qh4 Bd3 Kf2 Bc4 Ra1 e3+ Kg3 Bd3 Nb3 Be4 Nc1 e1Q+ Kh2 Qg3+ Kg1 Bb1 Kf1 Bf8 Bf7 Bh7 f5 Qh2 Bf3 Qg1+ Ke2 Qf2+ Kd3 Bg7 Rc3 Ba3 Bb8 Bd6 Be4 Bhf3 Be6 Bd1 Rc5 Ba4 Nc7 Be8 Bd7 Bf7 Bc6 Qa4 Bb7 Qae8 Ba8 Qg8 Ne8 Rg6 Qh1 Bh6 Qd1 Bg5 Qa4 Rh6 Qc4 Qh3 Bbc7 Qh5 Nc8 Qe6 Rb5+ Bb4 Bf4 Qe7 Na7 Qe5 Rc5 Ba3 Rc7 Bd6 Rc5 Qd4+
2N3b1/2bNN3/2Kb4/b4PkB/1R1BB3/p2b1rb1/2qp1PB1/1QrR1qq1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 e4 b5 g4 bxa4 Bd3 Nh6 Bf1 Nf5 Kd2 Na6 Ke1 Nc5 Rh3 Ne6 gxf5 g4 Rh2 Ng5 Rh1 f6 e5 fxe5 hxg5 e4 Ke2 Kf7 c4 e5 b4 d5 b5 a5 b6 h5 b7 a3 b8N d3+ Ke3 d4+ Kd2 a2 c5 e3+ Ke1 h4 c6 h3 g6+ Kf6 g7 h2 g8B e2 Kd2 a4 c7 g3 Qe1 e4 Na6 g2 Qd1 a3 Qc2 e1B+ Kd1 e3 Nf3 g1Q Nc3 d2 Ke2 d1B+ Kd3 e2 Kc4 d3 Kb5 Be6 c8B Bd6 Rb1 a1B Bf7 Rh3 Bb7 Qc8 Nd2 Rf3 Nd5+ Kg5 Rb4 Bae5 Bg2 Bg3 Qb1 Bc2 Bh5 Bg8 Bb2 Qf1 Rg1 h1Q Nc4 Ra7 Bc6 Rc7 Nc5 Bd2 Bb7 e1B Nd7 B2f4 Ncb6 Bc3 Ne7 d2+ Nc4 Qh2 Be4 Bd3 Rh1 Qhg1 Kb6 Bde5 Nd6 Rc4 Kb5 Qc7 Ndc8 Bd6 Ra4 Bcb4 Bd4 Ba5 Rb4 Qc5+ Ka6 Rc1+ Kb7 Qh2 Rg1 Qc2 Rh1 Bdc7 Rg1 Bfd6 Rh1 Qe2 Rf1 Qg1 Rd1 Bc5 Kc6 Qef1 Be5 B5d6+ Bc3 Bdc4 Bd4 Bd3+
Q1B4k/2R1r1R1/n1n1P2q/1qnP4/1NR2BrR/1pqNq2B/5p1K/3r3r w - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qb3 f4 Kd1 f3 Kc2 f2 Kb2 Ra6 Qd1 Ra7 Kc2 Ra8 Ba3 f5 Qc1 g5 Qe1 f4 Qd1 g4 Bc1 f3 h3 Bd6 Nc3 Be6 Nb1 Bf4 gxf4 g3 Qe1 Nf6 Qd1 Bg4 hxg4 Ng8 d4 Kf8 Kd2 Kg7 Ke3 h5 a4 c5 f5 b5 Kf4 g2 Kg3 c3 e4 c4 g5 b3 g6 h4+ Kh2 c2 e5 h3 a5 b2 d5 b4 a6 c3 e6 b3 a7 Qf8 Na3 b1R Bf4 c1N Nc2 Ne7 Ra4 Rh7 f6+ Kh8 f7 Na6 Rc4 Nc6 Ne2 Nd3 Nb4 c2 Nc1 Ndc5 Ncd3 c1Q Qd2 Qg7 Qa2 Rg8 a8B Qh6 f8R Qc3 Bb7 Re7 Rc8 Rd1 Rc7 Rgg7 Bc8 Rg8 Kg3 g1Q+ Bg2 Qge1 Kh2 f1Q Qa3 f2 Qa4 Nab8 Qa8 Nba6 g7+ Kh7 Kg3 h2 Bh3 Qe3+ Kg4 Rge8 g8R Rf8 Rg7+ Kh8 Bd6 Rg8 Bf4 Qed4 Kg3 Qe2 Rf1 h1R Re1 Qf1 Re5 Qe2 Rh5 Qde3+ Kg2 Qa2 Rh4 Qa4 Na2 Qb5 Nab4 Rhg1+ Kh2 Rgf1 Rf7 Rg4 Rg7 Rh1#
B1R3Rb/1N1q1bn1/KBNP1rp1/1P2B3/QpB5/1pbrn3/2Rn4/2r4k w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 d5 cxd5 e5 Bh3 exf4 Bf1 Qd7 Ra2 axb4 Ra1 b3 Kf2 b4 Ke1 Qb5 axb5 Rh4 Ra4 Rh3 Ra1 Rh8 h4 Kd7 d4 Kd6 Kd2 f5 Kd3 c5 Kc4 g6 e4 f3 h5 g3 h6 g2 h7 f4 Ra6+ Nc6 Ra1 f2 Ra2 f3 Nd2 Bg7 Rc2 Nf6 Bb2 Nd8 Qa1 Ng4 Qa4 Ra6 Ne2 g1B Bc3 Rg8 h8R Ne6 R1h6 Rd8 Rg8 Bh2 Rhh8 Bhe5 Bg2 f1Q Bh1 Ke7 d6+ Kf6 d5 Kg5 d7 Qh3 Nd4 Kf4 Nc6 Kg3 Bb2 Bd4 e5 Kh2 Ne4+ f2 Nd6 Bc3 Nb7 Kg1 Be4 f1N Bd3 Kh1 Be2 Rf8 d8B Rf3 Bb6 Rd3 Ba1 Bd7 Rc8 Qh7 Rhg8 Bh8 Bb2 Ng7 e6 Be8 e7 Bf7 e8B Qh2 Bd7 Qc7 Bf5 Qd7 Be6 Bd2 Be5 Bc3 Bf5 Rf3 Be4 Nge3+ Kd3 Nd2 d6 Ra8 Rc7 Re8 Rc8 Re6 Bf1 Rf6 Bd5 Nb1 Ke4 c4 Bd3 Be1 Kd4 c3 Kc5 Nd2 B5c4 Rg3 Be4+ Rgf3 Rb2 c2 Bed5 c1R Rc2 Ngf5 Nd4 Ng7 Bd8 Qe8 Kb6 Qd7 Ka6 Nef1 Bb6 Ne4 Na5 Bc3 Ba8 Ned2 Nb7 Rd3 Nc6 Ne3
R1r2rn1/5NQ1/B2pp3/4N2B/qqp1BNqn/bb2P2P/1Kb2R2/4N1k1 w - - 0 1 illegal: No possible last move
2QBNqrb/1K3n1r/p1PR3b/1NR1p3/b3B2p/nkN3qn/3RP1R1/8 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 g5 h4 b5 axb5 Qc7 g4 f5 hxg5 fxg4 Na3 Qxf4 Nb1 Qh2 Kd2 Kf7 Kd3 Ke6 Kc4 h5 Kc5 d5 b4 d3 c4 h4 b6 d2 b7 d4 b5 a6 Kb6 d3 c5 Kd5 g6 Kc4 c6 e5 g7 g3 Ra2 g2 Nc3 Be6 Nf3 g1B+ Nd4 Rh7 Bg2 Qg3 Be4 Nh6 g8N Bg7 Nf6 Bh8 Ne8 Be3 Rg1 Nf7 Rg2 Bh6 Qg1 d1N Bg5 d2 Bd8 Nf2 Qf1 d1Q Rd2 Nh3 Qf5 Bd5 Qc8 Qa4 Kc7 Qb4 b6 Qa3 Ndb5 Nd7 b8R Kb3 b7 Be6 Rd6 Nb6 Rd2 Nc4 Rd6 Qb2 Rd2 Na3 Kb6 Ra7 Ra8 Rg7 b8R Rg8 Rb7 Qa2 Rbd7 Qb1 R7d6 Qf1 Rb8 Bc4 Rb7 Bd3 Rbd7 Bc2 R6d5 Qf6 Rc5 Qe7 R7d6 Qf8 Qc7 Kb4 Qd7 Ba4 Qc8 Kb3 Qf5 Re7 Qc8 Re6 Ka7 Reg6 Kb6 R6g7 Kb7 Rh7
Nk4n1/1N2NPpq/p1Kb2R1/4bbR1/1q2rBN1/1RQq4/rpn3P1/5B2 w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 Qd7 exf5 Qd6 b4 Qxh2 a4 a6 b5 axb5 a5 b4 a6 bxa6 Ke2 Kd7 Kf3 c5 Ke4 Kc7 f4 e5 d4 h5 f6 b3 f7 c4 d6+ Kb7 Kd5 c3 d7 e4 d8N+ Kc7 f5 h4 f6 b2 Qd3 c2 Ra3 e3 Ne6+ Kb7 Nc7 e2 Qc3 e1Q Nh3 Qhg3 Nf2 h3 Ng4 h2 Bf4 Bd6 f8R c1B Rb3+ Ka7 f7 Qd3 Re8 Bf5 Re6 Rh3 Rg6 Nc6 Rg5 Rb8 Na8 Rb4 Rg6 Be5 Kc5 Bd2 d5 Nd4 d6 Kb8 d7 Nc2 d8N Re3 Kc6 Re4 Nb7 Ra4 Qd4 Bc1 Nc3 Ra2 Nd5 Qb4 Qc3 Be3 Ne7 Bc5 Rg1 h1Q Rg5 Qh5 Rh1 Qh8 Rh6 Qh7 Rhg6 Bcd6
1k6/1n1p2NP/P2pq3/1q1QNnB1/1b5R/1RNb4/n1p2BKr/N2q1r1B w - - 0 1 legal: proof: e4 f5 exf5 a5 b4 axb4 g3 Ra3 g4 Ra8 d4 h5 gxh5 Nc6 d5 Nb8 c3 bxc3 d6 cxd6 a4 e5 f4 g5 Kf2 b5 h4 e4 h6 c2 a5 e3+ Kg3 g4 f6 e2 h7 e1Q+ Kg2 b4 f5 b3 h5 b2 h6 g3 Rh4 Na6 Nd2 b1N Nb3 Nc3 Rb1 Ne7 Bg5 Qe6 Ne2 Nc5 Qd5 Ba6 Na1 Nb7 Rb3 Qb8 f7+ Kd8 f6 Na2 Nc3 Bd3 a6 Bg7 f8N Kc7 f7 Nf5 Ng6 Bd4 f8N Bc5 Ne5 Bb4 Be2 Kc8 Bf3 Kc7 Kh3 g2 Be4 g1Q Bh1 Qd1 Kg2 Rg8 h8B Kc8 Nfg6 Rf8 Nf4 Rf6 h7 Rh6 Rg4 Rh3 Rh4 Ne7 Nb1 Nc5 Nf7 Qb5 Nc3 Nb7 Nh5 Kc7 Bd4 Rf8 Bb6+ Kb8 Ne5 Rf1 Ng7 Nf5 Bf2 Rh2+
3q1nb1/pBRR2n1/1q2p1NB/2R3r1/R2r1Pr1/3P1NQN/2p1k2b/nK6 w - - 0 1 illegal: No possible last move, all moves rejected
1n1BN3/q2R4/2R1nbkp/r1b1r3/2Q2b1p/3R1PNR/2PN1pK1/1B2br2 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 e5 h6 e4 Nh3 gxh6 Ng1 h5 Ra3 h4 Ra2 Nf6 Ra1 Ng8 Nh3 f5 Rg1 Qf6 Kd2 Ba6 Na3 Qe5 fxe5 f4 Nb1 f3 Rh1 f2 Ng1 Bc4 Rh2 Be6 Rh3 Bg4 Rh1 Bf3 exf3 Be7 Ne2 Bc5 Ng1 Bf8 Ke2 Kf7 b4 a5 g4 d5 e6+ Kg6 g5 d3+ Ke3 h6 e7 a3 e8N a2 b5 d4+ Kf4 d2 b6 d3 b7 e3 Ne2 a4 Rh3 a3 Ng3 e2 Kg4 e1B Qe2 d1Q Nd2 Ra5 Bb2 Bd6 Bf6 Bc5 Bd8 Ne7 Qe4+ Nf5 Qc4 Qe2 Rd1 Qe3 Be2 a1B Bf1 Na6 b8R a2 Rb7 Be5 Rd7 a1B Be2 Bf4 Bf1 Rh7 Be2 Re7 Bf1 Kh7 g6+ Kh8 g7+ Kh7 g8R Nd4 Rf8 Nb8 Rf6 Bc3 Rc6 Ne6 Rh2 Bf6 Kh3 Kg6 Kg2 Bb4 Rh3 Qa7 Be2 Bc5 Ndf1 d2 Qa6 Ng7 Bc4 Re5 Ba2 Ne6 Qc4 Ra6 Rb1 d1R Rb3 Ra5 Rbd3 Bc3 Bb1 Rde1 Nd2 Rh1 Ndf1 Be1 Nd2 Rf1
BnB3rr/3QBk1n/1q3npK/2p5/R3b1b1/4n3/2B1PNpP/R2r1N1N w - - 0 1 legal: proof: c4 a5 g4 e5 d4 h5 b4 hxg4 f4 exf4 c5 axb4 d5 d6 cxd6 c6 d7+ Ke7 Kf2 Kf6 Ke1 Bc5 d6 Bb6 Qc2 Ba5 Qd1 Bc7 dxc7 Ke7 Kd2 f5 a4 b5 a5 c5 a6 g6 a7 f3 Ke3 g3 Kf4 f2 Kg5 f4 Qd2 f3 Bb2 b3 Be5 b4 Bd6+ Kf7+ Be7 b2 Bh3 f1R Ra4 f2 Bf5 g2 Bc2 b3 Nh3 Rd1 Qd4 f1N Nd2 b1N Nf2 Ne3 Nf1 b2 Qg4 Bb7 c8B Qb6 Qh3 Nc3 d8N+ Ke8 Ne6 b1B Ng7+ Kf7 Qf5+ Nf6 Nh5 Be4 Nhg3 Ncd5 Qd7 Nh7+ Kh6 Ndf6 Rg1 Ba2 Ngh1 Be6 Qd5 Nc6 Qd7 Rb8 a8B Bg4 Bcb7 Rbg8 Bc8 Rd3 Nd2 Rd6 Rga1 Nb8 Nf1 Rd1
1Rnbb1qq/1BN1N3/1P1R1p2/3pnQ1p/1Pb3r1/1BB4k/8/qKB1Rn2 w - - 0 1 legal: proof: f4 a5 b4 c5 d4 cxd4 h4 b5 c4 e5 cxb5 exf4 a4 Ra6 h5 Rd6 h6 Rd5 b6 Rb5 axb5 gxh6 Nc3 h5 Nb1 h4 Kd2 Ke7 Kc2 Ke6 e4 d5 g4 h3 e5 a4 g5 Kf5 e6 h2 b7 f6 g6 a3 e7 f3 e8B Kg4 g7 a2 Bc6 Bd7 Na3 Be8 Nh3 Nd7 b8B Ne7 Bb7 Nc8 Bc4 Rg8 Qd3 f2 Bb3 f1N Be5 Be7 Nf4 h5 Qe4 d3+ Kb2 d2 Bc3 d1B Ng6+ Kh3 Qf5+ Bg4 b6 Ne5 Nb5 Ng3 Rg1 h1Q Re1 Qg1 Nc7 Nf1 Rb1 a1Q+ Kc2 Nd3 Re6 Ne5 Rd6 Qg3 Be3 Qg1 Re1 Qg3 Bc1 Qg2+ Qf2 Be2 Qf4 Bc4+ Qf2 Rh8 g8R Qg5 Rf8 Rg8 Qf4 Qh6 Qf2 Qh8 Qf5+ Kg3 Nh4 Rg4 Ng6 Kh3 Rg8 Qd7 Rf8 Bd8 Ne7 Qe6 Rg8 Qa5 Kb1 Qa3 Rf8 Qa1+ Kc2 Qeg8 Rd1 Bf7 Bh6 Na7 Bc1 Bg6 Re1 Bf7 Ne6 Bc7 Rb8 Bd8 Nc7 Be8 Qg5 Qa6 Qf5 Nc8 Kb1 Qa1+
br3q1B/1R1p2N1/1r3N1R/NPn1n3/r2n4/p1NqK2p/P3Q3/1R1q2Bk w - - 0 1 legal: proof: e4 b5 f4 g6 c4 bxc4 d3 cxd3 e5 f6 exf6 Kf7 Be2 Ke6 f7 Kd5 Bf1 Kc6 h4 Kd5 g4 Qe8 f5 Na6 f6 Nb4 g5 Nc6 Bh3 Nb8 Bg4 Kc6 Bf5 gxf5 g6 Qd8 Nd2 Bh6 Nb1 Bg5 hxg5 Kb6 Kf2 Kc5 Ke1 Kc6 Kf2 Kd5 f8N Ke4 b4 a5 f7 e5 g7 c5 b5 h5 g6 h4 Rh3 a4 Na3 f4 Qd2 c4 Nc2 a3 Rf3 h3 Qb4 d2 Ne6 d1Q f8B Ra4 Bd2 Nf6 g8R Bb7 g7 Nc6 Ne3 Nd4 Be7 c3 Be1 c2 Bd2 c1R Rf8 Rc6 g8N Ba8 Qc4 Rb6 Qe2 Qb8 Rg3 f3 Bc3 Qd6 Rg6 Ng4+ Kg3 f2 Rh6 f1Q Rb8 Qf8 Rb7 Qd5 Ng7 Qc4 Bc5 Qcd3 Kh4 Kf4 Rb1 e4 Nc4 e3 Na5 Ne5 Nf6 Rg8 Kh5 Kg3 Kg5 Rh8 Qc2 Rg8 Ne2+ Kg2 Kf4 Kh1 Ba1 Rh8 Nc3 e2 Qb2 e1N Qe2 Qc4 Ke3 N1d3 Be7 Nc5 Bd6 Ned3 Bh2 Ne5 Bg1 Qcd3+ Kf4 Qc4 Nf5 Ng4 Nce4 Qff7 Ne8 Nc2 Bg7 Qg8 Nf6 Nd4 Nc3 Ne5 Ke3 Qc8 Ra7 Rg8 Bh8 Qe8 Ng7 Qcd3+ Kf2 Qf7 Rc7 Rgb8 Rb7 Qdc4 Ke3 Qf8 Nce4 Qcc2 Nc3 Qcd3+
1qbN2q1/pB1PN2Q/2R2rr1/1N1p1r2/1BR1n1K1/np6/3R2P1/n2N1qk1 w - - 0 1 illegal: No proof kernel
3BB1NB/2n1Nn2/2qpbK1P/Rqb4R/3p3N/2q3Q1/1B2Pp2/1k1n2rq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 g4 h5 Bg2 a5 Bh3 Ra6 Bf1 Rah6 Na3 gxh4 Nb1 h3 Kf2 h4 Ke1 Rh5 gxh5 Qf6 Bg2 Qb6 Bf1 Qd8 Kd2 Ke7 Kd3 Kf6 Ke4 f3 b4 f2 c4 h2 b6 h3 b7 a4 b5 a3 c5 a2 c6 Qa5 b6 Na6 b8B Bc5 b7 Nh6 c7 Rg8 Bg2 f1N Nc3 Ne3 Qb3 Nd1 Nf3 Qb5 Nh4 Rg5 Bf3 Rg1 Bb2 Kg5 Ke5 f5 Bg4 f4 Nd5 f3 Ne7 f2 Qg3 Nf7+ Ke4 Qb4 h6 Qa5 Ng8 Qb5 Rb1 a1Q Ba7 Nb8 Bb6 Na6 b8B Qa3 Ra1 Qc3 Ra5 d6 Bh5+ Bg4 c8N Nc7 Nce7 Nh8 Qf3 Be6 Be8 Nf7 B8a7 Na6 Bd8 Nc7 Qe3+ Kg4 Nf3 Kg3 Bb6 Kg2 Kf4 Kf1 Nh4 Ke1 Qg3 Kd2 Ke4 Kc2 Kf4 Bb3 Kf5 Kb1 Kf6 Bc4 Nc6 Be6 Be7 Na8 Bbd8 Nc7 Bf8 Re1 Bg7 Rf1 Rg1 h1Q Nce7 h2 Bh8 Qhc6 Rg2 h1Q Rh2 Qba6 Ng2 Qad3 Rh5 Qdb5 Nh4 Rg1
NNB5/1K2Ppn1/1nBN2bP/3B1r2/r2p3R/2k1br1n/R1p1rQB1/4r3 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 gxf4 d4 e5 g4 b5 g5 h6 g6 Qf6 Bd2 Qc6 Be3 axb4 Bc1 b3 Bd2 b4 Be3 Qb5 cxb5 Ne7 dxe5 Kd8 Bf2 Ng8 Bh4+ Ke8 Bg5 hxg5 Kd2 Ke7 Kd3 Ke6 Kd4 d5 h4 c6 e4 g4 a4 g3 g7 b2 b6 g2 h5 f3 b7 f2 h6 b3 a5 Ra6 Nd2 b1R Nc4 b2 Qe1 Nd7 b8N Bb4 Nd6 Ngf6 g8B Bd2 Bh7 Ra7 a6 Nb6 Kc5 d4 Nh3 g1N Bg2 f1R Ra2 Nh5 Qf2 Re8 Bg6 Ra8 a7 Ng7 Rh2 Be3 Bf5+ Ke7 e6 Rbe1 e5 b1R Ng5 Rb3 Rh5 Nh3 Rh4 Ba6 Bd5 Bd3 Bg4 Bg6 Bg2 Kd8 e7+ Kc7 Bc8 Ra3 e6 Re2 Kb4 c5+ Kb5 c4 Bd5 Rd3 Ka6 c3 Bg2 c2 Bd5 Rg8 e8B Rfe1 e7 Rc3 Ba4 Rc5 Bg2 Rf5 Bac6 Rf3 Nge4 Rd8 Nc4 Rd5 Ned6 Rdf5 Nd7 Rb8 a8B Rb7 Bd5 Rb8 Bac6 Ra8+ Kb5 Ra4 Nb8 Rd1 Na5 Ra1 Ka6 Rae1 Nc4 Nd7 Nb6 Kd6 Kb7 Kc5 Nac4 Kb4 Na8 Kc3 Nd6 Nb6
N3r2r/kBpB3b/1p2N2Q/4Br2/2nrn1PR/K5p1/2r1PNB1/3Rb2b w - - 0 1 illegal: manual, w needs 2 light square bishop promotions, but effectively only a8 and e8 are available. e8 supports 1 promotion with a black pawn capture. A white bishop cannot leave a8 without b7-b6 blocking wNb6-a8, and there's no 2nd black pawn capture available for a7-a8N
1K2nkb1/2rR1rR1/Br4P1/2b1np1p/4Q2b/3Nn3/B1N2NPp/1b2N1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e5 Qd2 Qb6 Qf4 Qg6 fxg6 exf4 Kd2 h5 Kd3 a5 Ke4 d5+ Ke5 f5 c4 f3 b4 d3 e4 f2 b6 d4 b7 a4 b5 d2 c5 d1B b6 d3 c6 h3 c7 d2 Na3 h2 Nc2 a3 Ne1 a2 Nh3 Bh6 Kd6 Kf8 e5 Bd7 c8B Bg5 Kc7 B7a4 e6 Bg4 Bc4 f1N Nf2 d1R Be3 Nd7 b8N Rd5 b7 Ne5 Na6 Rd6 b8N Bh4 Nb4 Bb3 B8a6 Rb6 N8c6 Bf3 Nbc2 Be4 N6b4 Nf6 Nbd3 Ra7+ Kc8 Rhh7 e7+ Ke8 Rc1 a1B Bc5 Ne3 Bg8 Bb7+ Kb8 Bd4 Bgc4 Rf7 Rb1 Ba4 Ba2 Bb3 Rb2 Rd6 Rb1 Be4 Rg1 Bc4 Rb7 Re6 Rd7 Rc7 Bb6 Bc5 Rf1 Rcc6 Rb7 Rc7 Ra7 Kd7 e8Q+ Kd6 Qc6+ Ke7 Qd5 Kf8 Qd4 Bed5 Qe4 Ne8 Rh1 Rcc6 Rd7 Rc7 Rf1 Bb7 Ba7 Rb6 Rg1 Rff6 Rg7 Bg8 Nf4 Bc8+ Bb7 N3c4 Nd1 Rff7 Nb4 Bh7 Nf3 Re6 Rh1 Bd7 Ba6 Bg8 Rf1 Bce7 Bg1 Ba4 Nf2 Bc5 Rd1 Bc2 Rd7 Rec6 Nf4d3 Ne3 Nfe1 Bb1 Nbc2 Rb6+
5q2/1Kn4B/1B3N1q/pP1QNR2/nq1qBp2/p1b1P3/2B4k/2q1RbqN w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Bd2 d5 Bc1 d4 h3 h5 Qd3 g5 Qd1 a5 Rh2 Ra6 Rh1 Rf6 h4 Rf5 gxf5 g4 Bg2 Rh6 Bh3 Rg6 Bf1 Rg5 hxg5 Qb6 Kd2 Qf6 Ke1 Qd8 Kf2 Ke7 b4 d5 c4 d3 c5 d2 c6 h4 g6 Kf6 b5 Kg5 g7 h3 c7 Kh4 e3 d4 f6 d3 f7 a3 Bg2 h2 Ne2 Ne7 g8B Nd7 Nbc3 Nc5 Ng3 Na4 Nd5 Bg7 f8N Bc3 Nd7 Qf8 N5f6 Nd5 Ne5 Bd7 c8B Nc7 Qb3 d1Q Qd5 d2 Bh7 Qb3 Bb2 Qbb4 Rae1 d1Q Bc2 Bc6 B8f5 Qdd4 Bh7 Bd7 Rhg1 h1Q Ba1 Qh3 Nh1 Bf5 Rc1 Bd3 Rge1 Bf1 Rcd1 Kg5 Rd2 Qhh6 Rd3 Bd2 Rc3 Kh4 Rc5 Qdc4 Bd4 Bc3 Rc6 Qd3 Bb6 Qde4 Rc5 Qed4 Kg1 f2+ Kh2 Bd3 Bge4 g3+ Kg2 Bc4 Kf3 Kh3 Bed3 g2 Bdg6 Qd1+ Ke4 g1Q Bf5+ Kh2 Bfg6 Bd2 Kd4 f1Q Bge4 Bd3+ Nc4 Qfe2 Qa8 Bc1 Rf5 Bd2 Qd5 Qc1 Ke5 Qed1 Kd4 Qbb1 Ne5 Bf1 Qd6 Ne6+ Kd5 Qb4 Kc6 Nc7 Kb7 Bc3 Qd5 Qdd4
b3rNRb/2b3R1/NPBQb2r/6p1/1pb2P1k/2B5/K2r2p1/nBNB2r1 w - - 0 1 illegal: No possible last move
7N/PN1n4/3pk3/1BrRpqK1/2R1Rr2/p1PQ4/p1N1Rnb1/B1b2rq1 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 Bd3 cxd4 Bc4 bxa4 Bb5 a3 Ba6 a4 Bf1 Qa5 bxa5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Kf7 f4 h5 g4 d3 Ke3 h3 g5 a2 c3 d6 f6 h4 g6+ Ke6 a6 a3 f5+ Kd5 Kf4 e5+ Kg5 d2 g7 h2 f7 h3 a7 Rh4 f6 Bb7 Ne2 Re4 Bb2 Na6 Nd4 Re1 Nc2 Be7 f8R Nb8 Bb5 Re4 Rc8 Rf4 Rc4 Nd7 Re1 h1R Re2 Nh6 g8R h2 Rh8 Bf8 f7 Ng4 Rh4 Rhf1 Rce4 Bg7 f8N h1Q Ng6 Qf3 Nh8 Rc8 Rc4 Rc5 Rce4 Rf7 Rc4 Nf2 Rhe4 Rh1 Qf1 d1Q Nd2 Ke6 Nb3 Rf4 Na5 Bc6 Nb7 Bh6+ Kg6 Qe1 Rd1 Bg5 Rd3 Qc1 Qd1 Rf1 Ba1 Qg4 Rdd4 Qf5+ Kh5 Qb1 Qd3 Qc1 R4e3 Bg2 Ree4 Qe3 Rd5 Qg3 Qf3 Qh2+ Qh3 Qg1 Qe3 Rf3 Qd3 Bc1+ Kh4 Qf8 Kh5 Rf4 Kg5 Qf5+
b1N1nBn1/5pb1/2p4Q/K1Npp1Rn/3P2r1/1q3BnP/2N2kNB/R1r5 w - - 0 1 legal: proof: g4 e5 c4 b5 cxb5 h5 gxh5 Nc6 a3 Bxa3 f4 Nd4 f5 Bf8 f6 Nxe2 Kf2 Nd4 Ke3 Nc2+ Kf3 Qxf6+ Ke2 Qd8 Kd3 Ke7 Kc4 Kd6 d4 g5 b4 a5 b6 g4 Kb5 Kd5 h6 Ke4 h7 d5 h3 g3 b7 a4 b8N a3 Qe1+ Ne3 Nd7 a2 Nf3 g2 Nb6 g1N Nh4 Bg7 Be2 Ng2 Na3 Nf4 Qd2 Bb7 Nc8 Nh5 Qh6 Ra4 Bd2 Ba8 Nc2 Qe7 Ng2 c6+ Kb6 Ra5 b5 Qa3 Bc1 Qb3 Bf4 Ra4 Rh2 Rc4 Ka5 Rc5 Bg4 Ne2 Bf3+ Kd3 Rhh1 Neg3 Rhg1 Rc4 b6 Rc3 Rac1 a1N b7 Rc4 b8N Rc3 Nce3 Nc2 Na6 Na3 Nc2 Nb5 Ra1 Nc7 Nc5+ Kc4 Nb4 Rc1 Nc2 Ne8 Be3 Ne7 Bf4 Rg8 h8B Kc3 Nge3 Kd2 Rg2+ Ne2 Rg5 Neg3 Ng2+ Qe3 Be4 Ke2 Bf3+ Kf1 Ne4 Qb3 Nc5 Nh1 Bh2 N1g3 Nh4 Kf2 Ng2 Bf8 Bf6 Rg6 Bg7 Ng8 Rf5 Rg4 Rg5 Be7 Bf8 Bf6 Nb4 Bh8 Nc2 Bg7
r2R1R1R/k3p1nK/p2pb1B1/3r4/2PpP3/1n1bR3/1QBqB2N/b2b2N1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 g4 f6 h4 Qb6 g6 Qc6 g5 Qc7 g7 Qb6 g6 Qd8 Bg5 fxg5 Ra3 gxh4 Ra2 Qb6 Ra1 Qd8 Kd2 h5 Kd3 d6 Ke4 Kd7 Kf5 h3 e4 h2 b4 h4 b6 h3 b5 a6 b7 Nc6 b8R Na5 b6 Nf6 g8B Ne8 g7 Kc6+ Kg6 Nb3 b7 Kb6 Ra3 Be6 Bf7 Rh5 g8B Ka7 Qe2 Rd5 Nd2 Ng7 Ndf3 Qa5 Rd8 Qd2 b8R Nh5 c4 Bh6 Kh7 Ng7 Bh5 Be3 Qg2 Bf4 Bd3 Bg3 Ne2 Be1 Rf1 h1B Bgf7 h2 Bc2 Bf5+ Bfg6 Be6 Qf2 Bg2 Neg1 h1B Nh2 Bf3 Rh8 Be2 Rbd8 Bd3 Be2 Bf3 Qg2 Qd1 Qf2 Bc3 Qg2 Bfg4 Rff8 Bb2 Qf1 Qd2 Qb1 Ba1 Qb2 Rc5 Ra5 Rg5 Raf5 Bh5 Rf3 Rd5 Re3 Bhg4 Bf1 Bd1 Be2 Qb4 Rg3 Qa5 Re3 Qd2
1k1q3q/RN6/R6n/1P1B1Pb1/1np1N1N1/bp2K1pb/1nB1p2Q/2R1Rr2 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 b4 a5 c4 axb4 Ne2 b5 Bg2 b3 Bf1 d6 Ba3 Ra5 Bc5 b4 Ng1 Rb5 cxb5 dxc5 Ke2 Kd7 f4 e5 h4 g5 d4 c6 a4 Kc7 a5 b2 a6 c4 d5 c5 h5 b3 d6+ Kb6 d7 Kc7 a7 c3 a8B c4 h6 e4 f6 e3 h7 c2 f7 c1B Nc3 b1Q Ne4 g3 Bd5 g4 Nf3 g2 Ne5 g3 Ng4 Bfa3 f8R Nh6 Rf6 Na6 Qd2 Rf8 h8R Nb4 Ra6 Kb8 Rh7 Qb2 Qc2 Bd2 Rc1 Qh8 Kf3 Rf7 Bd3 e2 Rhe1 Be3 Qc3 Rf8 Bc2 Bd2 Qd4 Rf7 Qf2 g1N+ Kg2 Nh3 Kf3 Rf6 Qh2 Nf2 Rf7 Nfd3 Rh7 Qb6 d8N Nb2 Rha7 Be3 Nb7 Qbd8 Ne5 Bh3 Ng4 Rd6 f5 Bg5 Bf7 Rd1 Bd5 Bh4 Ke3 Bf6 Rh1 Rf1 Re1 Rf4 Rc1 Bg5 Rhe1 Rf1+
B1Rr3Q/4rn2/1b2p1Kp/Rq1p4/B3R1q1/N1P3p1/2NnP1kB/n2q3R w - - 0 1 legal: proof: d4 a5 b4 f5 g4 fxg4 a4 b5 axb5 c5 Bh6 cxd4 Be3 Qb6 Bc1 Qd8 h3 axb4 Ra5 g5 Bd2 g3 Ra6 g2 Nc3 g4 Ra1 g3 Nb1 Bb7 Bh6 Bf3 Bc1 Bg4 hxg4 Qb6 Kd2 Qa5 Ke1 Qd8 Kd2 Kf7 Kd3 Kg6 Ke4 b3 f4 d6 c3 d3 f5+ Kf6 b6 b2 b7 d2 Nf3 g1N Bg2 Nh6 Ra5 Qc8 Ne1 Kg5 Na3 b1Q+ Nec2 Qb6 f6+ Qb5 f7 Nd7 b8R Nf3 Rb6 Bg7 f8R Nf7 Rc6 h6 Rc4 Ra7 Re8 Qd8 Rc8 Bd4 Qg1 Bb6 Qd4 Rg8 Qh8 Qc7 Rg1 Kh4 g5 d1Q g6 Rf8 g7 Nc5+ Kf5 Nb3+ Kg6 Na1 g8B Qcc4 Be3 Nd2 Ba8 Kh3 Rf1 Rb7 Bg1 Kg2 Bh2 d5 Bh7 Qf4 Rh1 Qh4 Rc4 e6 Re4 Qf4 Rc8 Rd8 Bg8 Nd6 Bf7 Re7 Be8 Nf7 Bd7 Qc4 Ba4 Qb5 Rd4 Qh4 Re4 Qg4+
BB3q2/3bk2K/3ppnrN/N2pQ1p1/1BPqP1rR/b2R2N1/q7/3bN3 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 c6 d5 cxd5 h5 axb4 a4 b5 axb5 Nc6 g3 Ne5 g4 Ng6 hxg6 f5 Qd3 fxg4 Qd4 Ba6 Qd1 Bc8 e4 h5 Ke2 g3 Kf3 b3 g7 b2 b6 h4 Kg4 g2 Kf5 e6+ Kg6 h3 f4 h2 f5 Ba3 f6 Bb7 f7+ Ke7 f8B+ Ke8 Nc3 b1Q Bb4 Qe7 Ba6 Rb8 Nf3 g1Q Ne1 Qd8 Qd4 Qe7 Bf4 Qa2 Qe5 Bc8 b7 Rh3 Ne2 Rh5 c4 Rh3 Ng3 Rh4 Rd1 Qf8 Rd3 Rg4 Kh7 Qd4 Bb5 Ra8 b8N Kf7 Bc6 Nf6+ Kh6 Ra7 Ba8 Rb7 Nc6 d6 Be3 Rc7 Na5 Ke7 Kg6 Bd7 g8N+ Kd8 Nh6 Ke7 Rf1 h1B Rf4 Bf3 Bg1 Qc3 Ba7 Bd1 Bb8 Qd4 Rf5 Ng8 Kh7 Rb7 Rf1 Rc7 Rh1 Nf6+ Kg6 Rc8 Rh4 Qh8 Bb7 Rf8 Bc6 Rf7 Ba8 Qf8 Ng2 Nh5 Ne1 Rf6+ Kh7 Rg6 Re3 Qd8 Rb3 Qf8 Rd3 Nf6+
4rb1R/1B1nk1NR/R1p1pnn1/Bq4N1/p1q2rP1/pB2P3/3Q4/B3K1r1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 d5 cxd5 g5 f4 gxf4 b5 h4 Qb3 b6 Qg3 hxg3 a4 Ba6 bxa6 b5 Bg2 bxa4 Bh3 Qd6 Bf1 Qd8 d4 f5 h4 c6 a7 a3 h5 f3 e3 g2 d6 f4 d7+ Kf7 d5 Bg7 d6 Bf6 h6 Qb6 d8Q Qb5 d7 Bg7 h7 Nf6 Ne2 g1R Nd2 Re8 h8R Bf8 Ng3 Qc4 Nde4 f2+ Kd2 f3 R1h7+ Ke6 Ng5+ Kd6 Bg2 f1N+ Ke1 Nd2+ Bf1 Qb5 Bb2 Nc4 Nh5 Ne5 Ng7 Ng6 Ra2 Qc4 Ba1 f2+ Kd2 Qa6 Bc4 Qb5 Bb3 Qc4 Qc8 Qb5 d8B Nbd7 Bb6 Rb8 a8B Qc4 Bd8 Rb4 Bb7 Qb5 Bb6 Rf4 Qd8 Qc4 Rb2 a4 Ba5 f1Q Rb1 Rg3 Rb2 Qfd3+ Ke1 e6 Bc2 Ne7 Rb6 Ng6 Ra6 Qb5 Bb3 Qdc4 Qb6 Rg2 Qd4+ Ke7 Qd2 Rg1#
K4Qrk/4p3/RrrBB1pp/1rR1r2B/1n1nP2p/5bRN/2q1PB2/7N w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 axb5 g5 h4 gxh4 g5 Bh6 g6 Be3 fxe3 fxg6 Kf2 Kf7 Kf3 Kg7 Ke4 a5 Kd5 d3 c4 a4 b4 a3 b6 d2 e4 a2 b7 d6 b5 h6 b6 Rh7 c5 Qe8 c6 Ra7 c7 Ra6 Bg2 Bg4 c8B Rh8 Bf3 Qa4 Be6 Nc6 b8B Nd4 b7 Qc2 Qf1 d1R Be3 Rc1 Nc3 Rb6 Bf2 Rcb1 Rh3 Nf6+ Kc4 d5+ Kc5 Kh7 Rg3 Rg8 Bd6 Kh8 b8R R1b4 Rc1 a1R Ra8 Raa6 Nh3 Bh5 Bfg4 Rb3 Bgf5 Bf3 Bg4 Nf5 Ra7 d4 Bh5 d3 Ra8 d2 Ra7 Qb1 Nd1 Nd4 Rc3 Qc2 Rc4 Ra2 Ra6 Nd5 Rc3 Nb4 Rc4 Rbb8 Rc3 Rbc8+ Kb6 Rab2 Ka7 Rc6 Rc5 Rb1 Be3 R1b2 Ndf2 d1R Nh1 Ra1 Bf2 Ra5 Qc1 Rb5 Qf4 Ra2 Qf7 Raa5 Qf8 Rbb6 Ka8 Rab5 Ng5 Ra3 Nh3 Raa5 Rc3 Re5 Rc5 Rab5
2RN2q1/n2r1p2/p6B/pNrBk2b/p1nr2QP/3rn3/K2P2NR/N2R4 w - - 0 1 illegal: No proof kernel
2KBR3/1bp1NBpB/1P1NP3/2N2n1p/1b2q3/kq2R2r/B3p2b/4b1nQ w - - 0 1 illegal: No proof kernel
3Bk2q/2b1p1n1/rRn2p2/3pN3/1P1n1K2/1R3P2/2p1BQnq/NB1RB1n1 w - - 0 1 illegal: No possible last move
2bk1N2/1r1p1B1B/1R1n1NpQ/3qn3/8/3PPpNp/BrKbr2p/5RN1 w - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 f5 axb5 Nf6 f4 Ng8 g4 fxg4 h3 gxh3 Bb2 e5 f5 Nh6 Bd4 Ng8 Be3 Na6 Bh6 Nb8 Bf4 exf4 c4 a5 f6 h5 e3 a4 f7+ Ke7 c6 h4 c5 f3 c7 h2 b6 h3 b7 a3 c6 a2 Bd3 Ra4 Bh7 Rf4 Nc3 Rb4 Ne4 Rb3 Nf6 Rb5 Rb1 Rh5 Rb6 Na6 b8N Bb7 c8B a1R c7 Nc5 Na6 Ne4 Nc5 Nd6 Nce4 Nh6 Ng3 Ng4 d3 g6 Kd2 Rha5 Qe1 Ne5 Kc2 Rb5 Qa5 Ba6 Bb7 Qa8 c8B Re1 Bd5 Kd8 Ba2 Qd5 Bb7 Be7 Ba8 Bc8 f8N Rb3 Qb4 Rbb1 Qf4 Rb2+ Kc3 Ree2 Qh6 Ndf7 Bc6 Bc5 Bb5 Nd6 Bbc4 Rg8 Ra6 Rb7 Rb6 Bb4+ Kb3 Bd2 Kc2 Rg2 N1e2 Rh8 Rf1 Rg8 Ng1 Re2 Bcb3 Qd4 Bf7 Qd5 Qg7 Rh8 Bhg8 Rh4 Bh7 Rb4 Qh6 Rb2+
3r2N1/KBq3bb/1Bpn1PpQ/2p2Nqq/4Np1B/2Pk3r/p3R1BR/8 w - - 0 1 legal: proof: f4 e5 a4 exf4 c3 b5 axb5 d6 Qc2 Kd7 Qf5+ Ke8 Qc5 dxc5 b4 h5 g4 f5 Ra6 f3 Rd6 f4 Rf6 Nc6 Rg6 Nd4 Rg5 Nf5 gxf5 Qd5 Rg2 Qd8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 Kd3 Kd5 h4 g6 e4+ Kd6 Kc4 g3 e5+ Ke7 e6 Kd6 d5 Ke5 e7 Ke4 e8B g2 d6 f2 d7 Qg5 d8B Qh5 b6 Qd1 Kb5 Nh6 b7 Be7 Ka6 Qd5 b5 Qd4 b6 Rb8 h5 Rf8 Nf3 g1Q Nbd2+ Ke3 Bg2 Ng8 h6 Qg7 h7 Nh6 h8Q Be6 Ne4+ Kd3 Be3 f1Q Bc6 Bg8 Rh2 Bf6 Nd4 Nf7 Qh6 Qd1 Bf2 Be5 Bdh4 Rbd8 b8R Nd6 b7 Qh5 Rc8 Qh7 b8N Bg7 f6 Rf7 Bb7 Rfd7 Bh1 Qgg5 Nf5 Re7 Bg2 Ree8 Neg3 Re3 Ne4 Rh3 Nc6 Rf8 Nce7 Rd8 Bd4 c6 Be5 Nc4 Bc7 Nd6 Ka5 a6 Kb6 a5 Ka7 a4 Bb6 a3 Ra8 a2 Rc8 Qh8 Rb8 Bh7 Ng8 Bf8 Rc8 Qg7 Rc7 Qf7 Re7 Qg7 Nd2 Qf7 Re2 Qc7 Ne4 Bg7
2r1k1rN/4r1pn/6Nq/6Qp/p1PB2N1/rP2RK1p/2pRB3/bn2R1N1 w - - 0 1 illegal: No proof kernel
b2N3q/2P1KprN/p1p3BQ/N2pPr2/7b/r2R1Rpk/B3n3/RN4r1 w - - 0 1 illegal: No extended proof kernel
7k/Qp1P1BR1/2B1pbB1/RK1np2p/1NpRN1B1/2P2qb1/3p4/1rq3n1 w - - 0 1 illegal: No proof kernel
bQqk1qq1/3bN1Nb/rbbr1N2/1K6/N1P1BB2/B5R1/2n1PR1n/2n2r2 w - - 0 1 illegal: No possible last move, all moves rejected
k2n1NB1/2n3Q1/2N2R1r/Nb2n1nn/1nrP1r2/2qbP3/1Bn2B2/b1BR3K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 b4 c5 g4 Kc7 Kg2 Kb7 g5 a5 e3 h5 b6 f5 g6 a4 d3 h3+ Kh2 a3 b5 a2 g7 c3 Ne2 c4 Nd4 h4 Qc2 f3 Bg2 f4 Nb3 Bd7 Ba3 Rh6 Qe2 c2 Rc1 c3 Rg1 c1N Qe1 c2 Qf2 Nc6 N3d2 Qf6 Bb2 Nd8 Qe1 Qc3 Na3 Nf6 g8N Ne8 Ndc4 Nc7 Qf2 Rc8 Re1 Bg7 Kh1 h2 Qe2 Ka8 Bh3 f2 Ne5 f1B Nc6 f3 Nf6 f2 Qg4 Be8 Rb1 a1N Nh7 Na2 Rbd1 c1N Nf8 Nb4 Nc4 Nac2 N4a5 Be2 Qg1 f1R Be6 Rf4 Rf1 Bd4 Qg7 Bg6 Kg2 h1N Bg8 Ng3 Kg1 Ne4 Kh1 h3 Rf3 Nca2 Bc1 h2 Rf2 Ng5 Rff1 Re4 Rf6 Rf4 Ba3 Ncd5 Ne5 Qb3 b7+ Kb8 Kg2 Nbc6 Bc1 h1N Kg1 Ka7 b8B+ Ka8 Ba7 Bc3 Bd4 Ba1 Bdb2 Qc3 d4 Ng3 Kg2 Nh5 Kh1 Nab4 b6 Bb5 b7+ Ka7 Rg1 Bgd3 Rd1 Rf3 b8B+ Ka8 Nf7 Rf5 Bg3 Rf4 Ne5 Rc7 Bf2 Rc8 Ned7 Ne5 Nb8 Rc4 Nbc6 Nc7
1Nr2qR1/1r1r1B1k/1r1Rb2n/R1r1P3/1P3b2/1rB1KN1b/1Q1R1nN1/5q1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 Kg7 c4 h5 c5 a5 e5 d3 g5 h3 g6 d4 c6 h2 c7 a4 b6 a3 b7 a2 Qe1 h4 Nc3 h3 Ne4 f3 Bb2 f4 Bg2 f2 Bf3 f1B Qe2 Na6 b8R Rh6 Bh5 f3 Rb6 f2 Ng5 Nc5 Ne4 Be6 Ng3 Rc8 Ra6 Ne4+ Kc1 d2+ Kc2 d1R Qc4 d3+ Kb3 d2 Kc2 Rb1 Nf3 d1R Qb3 Rd7 Ne2 Bg2 Bc3 f1Q Rg1 h1R Rd6 h2 Kd3 Bgh3 Ke3 Nf2 Nf4 Qe7 Qa3 Rb3 Ng2 Qf6 Rad1 a1R Qb2 Rc1 R1d2 Kh8 g7+ Kh7 Be8 Be7 Bh5 Qf8 Be8 Rg6 Bf7 Nh6 g8N Bh4 Ne7 Bg3 Nc6 Rc2 Nb8 Bf4+ Kd4 Qe2 Rb1 Qf1 Ra1 Rg1 Ra2 h1R Ra5 Rf6 Ngh4 Rg7 Ng2 Rcd8 c8R Rb7 Be8 Rgc7 Bf7 Rdd7 Re8 Rc8 Rd3 Qe7 Rg8 Qf8 Rd2 Bef5 Rdd5 Rfb6 Rd6 Be6 Ra4 Ne4 Ra5 Bg3 Ke3 Rc1 Nf4 Nf2 Ng2 Nd3 Bd4 R1c5 Bc3 Nf2 Be8 Bh2 Bf7 Bf4+
n5BN/BnP3qr/1RBnBb2/3q1n2/4k1NP/2nn2n1/QR1K1b2/1bR3r1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 e4 Ke7 h4 Kd6 a4 Ke5 c4 d5 h6 g5 h7 f5 a5 b5 c5 b3 c6 f3 c7 g4 a6 f4 a7 d3 Ra2 f2+ Kd2 b4 Be2 f1Q Qe1 g3 Kd1 d2 Rc2 b2 Bg4 b3 Na3 b1N Rh2 b2 Rf2 d4 Rh2 g2 Rh3 f3 Ne2 g1B Ng3 f2 Bd7 Qg2 Bg4 f1N Ne2 Nf6 Rc6 Nd5 Rh1 Nbc3+ Kc2 d1N Bg5 b1N Bh6 d3+ Kc1 Nb2 Qd2 Bf5 Rb6 Bf2 Be3 Nb5 Nf4 Nd7 Nc2 Be7 Bh3 Rc8 a8B N1c3 Bc6 Ng3 Bg4 Rg8 h8R Nd6 Rg1 Bh7 Be6 Nc5 Qe2 Rg7 Kd2 Bf6 Rc1 Ncb7 Bc5 Ra8 Ne3 Ra1 Re8 Qe7 Rb8 Bg6 Bg8 Rh7 Bd7 Qg7 Bde6 Nba4 Rb2 Nb4 Ba7 Nb6 Ng4+ Kd4 e5 Qd5 Rf8 Rb1 Rb8 Bf5 Ng6 Be4 Rcc2 Rg1 Nh8 Bg6 Rc1 Bf5 Qd1 Ke4 Qb3 Na8 Qa3 Nc2 Qa2 Ne3 Bc8 Bg6 e6 Nef5 e7 Qc6 e8B Qc4 Rf1 Qd5 Kc1 d2+ Kc2 d1N Bce6 B6d4 Bc6 Bf6 Rb6 Nb2 Rc1 Nd3 Rb2 Nd8 R8b6 N8b7 Kd2 Bh5 Ne3 Bd1 Ng4 Bc2 R2b5 Bb1 Rb3 Re1 Rb2 Rg1
5qnb/q7/RBN4b/b6b/1bNQ1P1P/2n1rbN1/nB2qKRB/1kr2B2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 c4 Kf7 b4 Ke6 h4 Ke5 b6 g5 f3 d5 c5 a5 b7 g3 b5 d3 b6 Kd4 f4 e5 c6 g2 c7 d2+ Kf2 g4 Qf3 d1Q Qg3 a4 Bc4 a3 Bd2 a2 Bf1 Bh6 Qa3 e3+ Kg3 e2 Nh3 g1N Qe7 Kd3 Bc1 Kc2 Qe6 e1B+ Nf2 d4 Bb5 e4 Be8 d3 Qg6 d2 Bb5 Nc6 b8B Bb7 c8N Qf8 Qh7 Ra3+ Kg2 g3 Ba7 Re3 Bb2 Nb4 Qg6 Ne2 Ne7 Nc3 Qd6 Qe2 Nc6 d1B Qd4 Rh7 Nd2 Rc7 Kg1 g2 Rh2 Ba8 b7 Rc8 Rb1 a1B b8B Nba2 Nc4 Bd2 Nh1 Be1 Ne7 Bd5 Bc5 Bf7 Bba7 Bh5 Ng3 Rc6 Bc1 Bf3 Rb4 Bb2 Bab6 Kb1 Ra4 Rc7 Nc6 Rc8 Rh1 Rc7 Kh2 g1Q+ Kh3 Ba1 Rh2 Bd2 Ra6 Rc8 Nh5 Qgg7 Rf2 Qa7 Kg3 Nd5 Rg2 Qf1 Qf6 Re2 Nd4 e3 Nd6 Bg4 N4f5 Ba5 Ne7 Re1 Qc3 e2 Bg1 Rc5 Qc4 Bh8 Bb2 Rc8 Qd4 Rc1 Nc6 Ndc3 Bh2 Bb4 Nf6 Bh5 Bc4 Bc2 Bb5 Be4 Bc4 Bef3 Nfe4 Red1 Bb5 Rd3 Bc4 Qd1 Kf2 Re3 Ng3 Ba5 Bb5 e1B+ Kg1 Na4 Bf1 Beb4 Nc4 N4c3 Kf2 Qe2+
1qBK2n1/B2n4/1nbq1N1r/2n2N2/P2q4/1NBkb1r1/Q3rRPn/1nR3B1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 b5 a4 f5 d6 c5 d5 h5 d7 b3 Ke6 b4 d6 h3 Qe1 h2 Nc3 h4 Nf3 b2 Rb1 h3 Nd1 b3 Be3 Bb7 Nh4 f3 Qg3 f2 Bc1 f4 Qg6 f3 Nc3 Rh6 Bf4 Bc6 Rd1 b1N Bd2 b2 Rg1 h1R Qf6 h2 Nf5 Rg6 Be1 Bh6 Na2 Be3 Rd2 Rg3 Qf7 Qb6 d8B Nd7 Be7 Re8 Nc1 Kc3 Nb3 c4 Nh6 Qd4 Nf5 Bf4 e4 Be3 Re2+ Kd3 e5 c3 Bd2 c2 Bc3 c1N Rc2+ Ke4 Ba6 f1N Bc8 Kd3 Rf2 Nfd2 Re1 Nc4 Ref1 Nb8 d7 Nb6 d8B N8d7 Rd1+ Nd2 Bc7 b1Q Bb8 Qb2 Re1 Nb1 Ba7 Qd2 Na1 Nb3 Rc1 Bd5+ Kd6 Nbc5 Kc7 Bc6 Qa2 Qb2 e6 Qbb4 Rfc2 f2 Nb3 f1N Bf6 Re7 Kd8 Qd6 Rf2 Qbd4 Qa3 Rh7 e7 Rh6 e8N Rg1 Bg7 h1Q Qb2 Nh2 Qa2 Re1 Nf6 Re2 Bf8 Qb8 Bd6 Qf1 Be5 Qdd6 Bed4 Qd1 Rf4 Bd2 Bg1 Be3 Rf2 Qd2 Be5 Qb4 Bc3 Qbd4
NqQ2bN1/1B1Nqn1q/3nBPq1/2q5/K4k2/P1rb1N1R/2r4b/R3Bq1r w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 Kg6 Kc2 Kf5 Kb3 b5 f4 h5 d6 c5 d5 e5 d7 h3 g3 e3 d6 c4+ Kc2 e2 a3 e1Q Ne2 h2 Bb2 h4 Ng1 h3 Nc3 b3+ Kc1 e4 Na2 b4 Kb1 e3 Bg7 b2 Kc2 c3 Kb3 e2 Qd2 c2 Bc3 c1Q Bg2 Qe7 d8N Nd7 Bb7 Qf1 Ne6 e1B Nf3 Ne5 d7 Nf6 d8N Ne8 Nc5 Nd6 Nc6 Nef7 Nd7 b1Q+ Qb2 Bf2 Be1 Qc5 Nc3 Bg1 Nb5 Kg4 Nc7 Qg6 f5 Ra5 Ba8 Ba6 f6 Bd3 Bb7 Rb5 Ka4 b3 Qc2 b2 Qc1 b1Q Na8 Rb2 Qc2 Kf5 g4+ Kf4 g5 Rh4 Qc3 Rg4 Qc2 Rg3 Qc3 Rc2 Qc4+ Qge4 g6 Qbb6 g7 Qc7 g8B Qb8 Ncd4 Qg6 Qc3 Rgg2 Qc4 Rc3 Qa6 Rgc2 Nf5 Bf2 Nh6 Bg3 Rg1 h1R Qc6 h2 Qc8 Nh8 Be6 Nhf7 Rg2 Rg1 Rd2 h1Q Ng8 Qhh7 Rh2 Rh1 Rh3 Bh2
Rb3r2/4qPN1/rqn2k1b/1q1RrB1R/2b1r3/rR5B/1P2NQ1K/r1n3B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c4 Kf7 f4 h5 Kf2 d5 g4 a5 Kg2 e5 c5 h3+ Kg3 h2 f5 d3 f6 h4+ Kg2 d2 c6 a4 c7 e3 g5 h3+ Kg3 d4 b6 e2 b7 e1R Be2 a3 Bd3 e4 Be2 d3 Ra2 e3 Bf1 e2 Nc3 Ra6 Ra1 a2 Nf3 Ne7 Nb5 Nf5+ Kf2 Be6 c8R Nd4 Kg3 Nbc6 b8R Qb6 Nc7 Bc4 Rg1 h1Q Rd8 h2 Rd6 Nb3 Ne8 Bh6 Nd4 Qe4 Ng7 h1Q Qc2 d1R Bh3 d2 Rd5 Rf8 Rf1 Qe7 Rff5 Qhe4 Kh2 Qd3 Ra8 Kg6 f7 Ra3 Rf3 Ra6 Rb1 a1R Re3 R1a4 Ra1 Rb4 Raa5 Ra4 Rab5 Ra3 Ree5 Rg1 Rb4 e1B Ne2 Rg4 Rbb5 Re4 Rf5 Nba5 Rb3 Bf2 Rfe5 Re1 Rf5 d1R Be3 Bh4 Bg1 Rda1 Qd2 Bf2 Qf4 Bc5 Qf2 Bd6+ Rfe5 Kh7 g6+ Kh8 Qg3 Bb8 Rh5 Re5 Qf2 Qf5 Nc3 R1e4 Ne2 Qfg5 Ne8 Qf5 g7+ Kh7 g8B+ Kg6 Ng7 Kf6 Qg3 Qfd7 Bh7 Qdb7 B7f5 Qb5 Rbd3 Nb3 Qf2 Nc1 Rb3 Q7b6
1bnrRn2/3n1PqB/qR1N1k1r/1b2b1N1/3P3B/2BQ3r/bK3N2/1b4Bb w - - 0 1 illegal: No proof kernel
2B3N1/1r2Pb1n/1q3Pq1/2B1br1n/nR1Rn2N/2BqN2B/4k1Kn/Q1n1b3 w - - 0 1 illegal: No proof kernel
bR5n/1n1B4/3R1rnN/2b1B1nb/3NkP1q/2Q1Pr1N/qbbKN3/1n5R w - - 0 1 illegal: No proof kernel
1rb2nq1/RBbn2N1/2N2R1P/5N2/N5r1/rQ1qr2k/2nPn3/nr2B1BK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 Kg2 Ke6 e4 c5 b4 a5 h4 g5 h5 f5 b6 g3 b7 c3 e5 g4 h6 a4 b5 c2 b6 a3 Bb2 c1N Ba6 c4 Bd4 a2 Nh3 f3+ Kg1 f2+ Kg2 f1N Qe2 c3 Bg1 c2 Qe1 f4 Bf2 Kf5 e6 f3+ Kg1 g2 e7 Ne3 e8N Ne7 Kh2 g1R Nf6 Ne2 Nc3 c1R Qf1 Rg3 Ng8 Rb1 Na4 Ng6 Ng5 Nc2 Be1 f2 Qh3 f1Q Ne6 Nd7 b8N Re3 b7 Bd6+ Qg3 Qg5 Nc6 Bc7 b8B Ngf8 Bb7 Ra5 Ba7 Qg7 Nb6 Raa3 Na4 Qf3 Bc5 Qd5 Rg1 Qd3 Kh1 Qg6 Ng7+ Kg5 Qf3 g3 Nge7 Kh4 Qd5 Kh3 Rf1 Qe6 Rf6 Qg8 Nef5 Rd1 Rb1 a1N Rb6 Rb1 Qb3 Nc1 Ra6 g2+ Kg1 Ne2+ Kf2 g1R Ra7 Rg5 Bb6 Ng3 Kg1 Ne2+ Kh1 Rg4 Bc5 Re6 Bf2 Re3 Bg1 Qh7 Nd6 Ne6 Ba6 Bb7 Qb5 Rb8 Ndf5 Nef8 Qb3 Bc8 Bb7 Qg8
1k1B1Nn1/5qrb/K2rr1qP/N2r3B/RB1b4/b2RB1bP/7R/n1bQ1r2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 gxh5 dxc4 Nh3 f5 Ng1 fxe4 Ke2 Kd7 f4 b5 a4 c5 d4 Kc7 f5 e5 h6 g5 h3 e3 d5 b3 a5 e4 a6 g4 a7 g3 f6 b2 f7 g2 Qb3 c3 Na3 b1R Qb4 c2 Nc4 Qe7 Rh2 Bf5 Ra6 Rh7 Ra4 Nc6 Qd2 b4 Qc3 b3 Qd2 b2 Ra5 Rd8 a8R Nd4+ Ke1 e2 Qd3 Rd6 Kd2 e1R Kc3 e3 Qe2 Rg7 Rb8 Nb3 Qd3 e2 Be3 c1B Nf3 g1B Ra4 Na1 Rb5 Bh7 Na5 c4 Kb4 c3 Ng5 c2 Qd1 Qd7 Rc5+ Kb8 Rc3 Qe7 Kb5 Qc7 Bd2 Bb6 Ne6 Be7 f8B Bh4 Nb7 Qf7 Rd3 Bg3 Bg2 Rf1 Na5 e1R Be3 Rf5 Ka6 Ref1 Be7 Rf6 Nf8 Rfe6 Bf3 Rd7 Ba3 Rdd6 Bac5 Bd2 Bg4 Bb4 Bh5 Ba3 Rb3 Rc1 Bb4 b1Q Qd4 Rf5 Rc3 Rg1 Qd1 c1B Rb3 Rgf1 Rc3 Rd8 d6 Rd5 d7 Qbg6 Rd3 Rde8 d8B Red6 Ra2 Ree6 Rh2 Bd4+
2N1R1r1/3k1B2/N1qn1Br1/1R3r2/Knrb3q/nr3PRQ/4qRP1/N2b3n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 c4 d5 Kc2 h5 Kb3 a5 c5 d3 b6 d2 c6 e3 b7 e2 c7 e1N Rh2 h3 Qg4 d1Q+ Ka2 e4 b4 h4 Ka3 a4 Qf5 e3 Qg6+ Kd7 Qd3 e2 Qh7+ Bg7 b5 d4 b6 d3 Bf4 d2 Bd6 Qc1+ Kb4 d1Q Ra3 Qc6 Qh5 Nf6 Rb3 a3 Rg3 a2 Nd2 a1R Bf8 Ne4 Rg6 R8a5 Rg3 Bd4 Ngf3 Nd6 Nb3 Rf5 Be7 Ra6 Nfd2 Rg8 Rh1 h2 Ne4 h3 Na1 Nc2+ Kb3 e1R f3 Qe2 Bf6 Rc1 Qh4 Na3 Nc5+ Ke8 Qh8 Bd7 c8N Rc4 Rg1 h1N Qh6 h2 Qh3 Qe1 Bd3 Qd2 Rf1 Qe2 Rf2 Qde7 Be4 Qh7 Bb1 Qh4 Ba2 Be6 Nd3 Kd7 Nb4 Ra8 Na6 Rg6 Nb4 Na6 b8R Bd5 b7 Bg8 Nd3 Nb4 Nc5+ Kc7 Na6+ Kd7 Na7 Bd5 Re8 Rd8 b8R Be4 Rh8 Rdg8 Rb5 Bd3 Ka4 Bc2+ Ka5 Bd1 Nc8 R8g7 Re8 Rg8 Rf1 Nf2 Bb3 h1R Ka4 Rg1 Ka5 Nh1 Rf2 Bc2 Ka4 Rb1 Nc7 Bd1 Na6 Rc2 Bd5 Rb3 Bf7 Rc4
2nRq1Qn/2b1B3/n5nB/1N1q3K/R3B1r1/P1N1n2k/qPrB1q2/Rbb5 w - - 0 1 illegal: No proof kernel
Bq1RnQb1/r7/6N1/4B1R1/k3NbPN/b6b/Pq1nrnnB/K1nq1N2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 f5 Kc2 h5 Kb2 b5 e4 c5 g4 h3 d6 Kc6 d7 b3 e5 h4 e6 c4 e7 h2 e8N h3 Be2 b4 d5+ Kb5 d6 f3 Bf4 f2 Nf6 f1N Bc1 f4 Nh5 f3 Nf4 f2 Qd4 Ka4 Qe4 Ne3 Qd3 f1B Bf3 Na6 Qf5 Nf6 Qd3 Nc5 Qd4 Ra7 Na3 c3+ Kb1 c2+ Kb2 Ne8 Nc4 Qf6 d8N Be6 d7 Bg8 Rb1 Nd3+ Ka1 Be7 Bb2 c1B Ba8 Bd6 Bc3 Ba3 Re1 Nc1 Nde6 Rh7 d8B Rhe7 Ng6 b2+ Kb1 Bb8 Qc5 Qg7 Bb6 Bf4 Ng5 Qe5 Rd1 Qb8 N1f3 Bg2 Rhe1 h1N Rd2 h2 Rd8 Bh3 Ncd2 Ng2 Nfh4 Re4 Qf5 Re3 Rd1 Re2 Bg1 Nf2 Nge4 h1Q Bh2 Qg1 Qf8 Qf1 Bg7 Qe1 Kc2 b3+ Kc3 b1Q Rd5 b2 Rg5 Qa1 Be5 b1N+ Kc2 Re3 Nf1 Qd4 Rd3 Qdb6 Rd6 Nd2 Rd8 Re2 Kc3 Q6b7 Kc2 Qd1+ Kc3 Bb4+ Kb2 Ba3+ Ka1 Qb2+
2rBbR1Q/4r2n/5qrR/1N6/1kB2P1P/R1r1bb2/1nK3b1/q1BrN1nB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 e5 b4 Ke7 c4 Kd6 h4 a5 f4 g5 b6 g3 b7 a4 b5 Kc5 b6 d5 Be2 g4 Nf3 e3+ Kd3 a3 Bd2 e4+ Kc2 a2 Na3 g2 Qg1 d3+ Kc3 g3 Nb1 d4+ Kb2 Na6 b8B Bd7 b7 Nf6 Ne5 Be8 Bc3 d2 Nf7 d1B Nd6 d3 Na3 d2 Bg4 Nh7 Qh2 g1N Bf6 g2 Be6 e2 Bc7 e1R b8R e3 Ndb5 e2 Nc2 Nb4 Bd5 Qd6 Bcd8 Ra3 Ra8 Rf1 Ne1 Rc3 Qg3 Bc2 Qg7 d1B Rh3 Be4 Rf3 Rg8 Qh8 Bg7 Bfe7 Bd4 Re3 Bf3 Re6 Be3 Rh6 Bc2 Bf6 Bce4 Be5 Qf6 Be6 Kc6 c5 Rg6 Bc4 Rf2 Nc2 e1R Bd6 Rff1 B6e7 Rd1 Ne1 Rd7 Bd6 Re7 Ra3 Rg8 Rd1 Rg6 Rd5 a1R Rf5 Rac1 Be5 R1c2+ Kb1 Nd3 Bd6 Qd4 Rf8 Qf6 Be5 Nb2 Bd4 Bf2 Be3 Bd5 Bc1 Be3 Nd3 Rd1 Ne1 Kd7 c6+ Ke6 Nc7+ Kd6 Nb5+ Kc5 c7 Kb4 c8B Bde4 B8e6 Bb7 Bcd5 Rc8 Be4 R2c3 Bb3 Ne2 Bbd5 g1Q Bc4 Qf1 Bc6 Ng1 Be4 Be2 Bh1 Bg2 Bg8 Bef3 Be6 Qc4 Bd5 Qcd4 Bc4 Rcd3 Kc2 Qa7 Rc3 Qa1 Ra3 Rc3+
B2B4/3rr3/2n1n1kb/2NBnbNr/1Q1bPbN1/Pb2q3/1K3qR1/5RnN w - - 0 1 illegal: No possible last move
q2b4/1QR4N/1r4r1/r4B2/BP2b1q1/P2qR3/bbKR1r2/1nNRnrBk w - - 0 1 illegal: No possible last move
q1n4r/bbBR1n2/3B4/2P3Nr/3P2Bn/N1brq3/1QBRb2R/1K2rrk1 w - - 0 1 illegal: No proof kernel
1q6/N1B2q1b/BK5R/1PB1r1n1/k6n/qN2PN2/R1rrQb2/n1qB2qr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 c4 Kd7 g4 a5 b4 h5 g5 a4 g6 f3 g7 h3 c5 h2 b6 Kc6 b7 Kb5 c6 a3 c7 f4 Bd2 a2 Qe1 f2 Qd1 h4 Be1 h3 Qc1 f3 Qg5 Ka4 b5 Rh5 Bd2 Nc6 b8B Ne5+ Kc2 d3+ Kc3 d4+ Kb2 Ng6 Bc3 d2 Qh6 d1Q Nd2 d3 Rc1 a1N Rb1 Qc1+ Ka2 Bf5 c8N Nh4 Na7 Nf6 g8B Bh7 Qg5 Ne4 Qg4 Re5 Bg2 f1Q Bb4 f2 Ngf3 Bc5 Bc7 Qb8 Rb2 Ng5 Nb3 d2 Qh5 Bd4 Bc5 d1R Bd5 Be3 Bb7 Qg1 Ba6 f1Q Rd2 Bf2 e3 Qd3 Bf1 Qcc4 Be2 Qf7 Kb2 Qd6 Kc3 Qde7 Rb2 Rd2 Bd1 Rc2+ Kd4 Qef8 B5b6 Q8e7 Ra2+ Qa3 Nc6 Ra7 Bc5 Rb7 Na7 Rb6 Qg6 Rd2+ Qd3 Rc6 Bb4 Rcc2 Bc5 Re6 Kd5 Re5+ Kc6 Qg2 Rf1 h1Q Qe2 h2 Rg1 Qg4 Rg3 Qg1 Rh3 h1R Rh2 Qd4 Rh3 Qb2 Rh2 Qbg8 Kb6 Qc1 Rh3 Nf5 Rh5 Nh4 Rh6 Qb8+
r1q1B3/r2nR3/b1PR4/B2KR2N/n3P1rk/Q2N3n/R4b1q/Br1br2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 c4 a5 b4 h5 g4 f5+ Ke5 d5 e4 a4 c5 a3 c6 d3 b6 d2 b5 h3 b7 d4 b6 f3 Bg2 f2 Qa4 f1R Qa7 a2 Qa4 h2 Qc4 h4 Qc5 d3 Ne2 f4 Nbc3 d1N Bh3 d2 Ng3 f3 Nce2 f2 Nf4 Na6 b8R Nf6 b7 Rg8 Ngh5 Qe8+ Qe7 Nc5 Bb2 Rg7 Rg1 h1Q Rg2 Qd7 Nd3 Rg8 Rb1 a1R Qd6 R1a3 Ba1 R3a7 Rb5 Na4 Qa3 Bc5 Rh2 Bb6 Rd5 Rg1 Rd6 f1R Rg2 Nf2 Rh2 Kg6 g5 Rb1 Be6 Qd8 Bd7 d1B Rg2 h3 Be8+ Kh7 g6+ Kh6 g7 h2 Rg5 Nh3 Rg2 Re1 Ra2 Nc5 Kd4 Kg5 Ke5 Kh4 Kd4 Rh8 g8R Na4+ Kc4 Bd4 Rg5 Bf2 Re5 Rg8 Re7 Rg4 Re5 Bf5 Rc8 Qg1 b8B h1N Bc7 Qh2 Ba5 Bd7 Rb8 Bc8 Rb7 Qd7 Rc7 Qd8 Rg7 Nd7 Rge7 Ba6+ Kd5 Qc8
b1b1r1nR/R2r2n1/rPq3NK/b3RBQ1/1b1N4/kPB5/1R1Bb3/r3nq2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kd6 h4 Kc5 e4 Kb4 e5 g5 c5 f5 e6 a5 b6 d5 e7 d3 e8R g3+ Kf3 g4+ Kg2 a4 h5 a3 h6 d2 h7 a2 Nc3 d4 Re1 d3 Rh2 f3+ Kh1 f2 Kg2 f4 Rh1 Qc7 Nce2 Nc6 Nd4 Ra6 Rh2 f3+ Kh1 Nd8 Re7 Ne6 Nh3 Qc6 Rb1 a1R Ra7 Ng7 Nf4 Be7 Rh6 g2+ Kh2 g1N Bh3 f1Q Kg3 f2 Rh5 Nf3 Ng6 Ne1 Kf4 g3 Bf5 g2 Qg4 d1R Qg5 g1B Bd2+ Ka4 Kg4 Bh2 Kh4 Be5 b3+ Ka3 Rb2 Bf8 Ne2 Bc3 Nd4 Ba5 Kg4 Qa8 c6 Bfb4 c7 Qc6 Be3 d2 Kh4 Bb7 c8R Ba8 Bf4 Ne7 Kg4 Re8 h8B Ng8 Be3 Qfg2+ Kh4 f1B Rd8 Bd3 Rd5 Bc4 Re5 Be6 Rh6 Bc8 Rh7 Ne6 Kh5 Qg1 Bf6 Qf1 Rh8 Ng7+ Kg4 Rdc1 Kh4 d1B Bd2 Bc2 Kg4 Bd3 Kh4 Rc5 Kg4 Rd5 Kh4 Ne6 Kh5 Rd7 Bg7 Ne7 Kh6 Be2 Bf6 Ng7 Nf3 Bab7 Re3 Rd3 Bfc3 Rd7 Re5 Ba8 Nd4 Ng8+
n5N1/1RP1r2k/1b1nnqrN/3nqR1R/2Q2BP1/rB1q1b1N/8/2rN1rK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 f5 c4 Kf7 g4 Kg7 e4 h5 c5 a5 e5 a4 c6 f3 c7 d3 e6 d4 e7 d2 e8N+ Kh7 b6 a3 b7 a2 b5 h3 b6 d3 Nc3 h4 Qb3 d1Q Ba3 d2 Nb1 f4 Rh2 Nc6 b8R Nh6 b7 Nf5 Qc4 Bc5+ Qd4 Nd6 Bg2 Bb6 Bc5 Rg8 Qb4 Ra3 Ra8 Qf6 b8N Bb7 Bd4 Rg6 Bh1 Nd8 Qa4 Ne6 Rg2 h2 Ne2 h3 Ra7 Qc2 Nec3 d1N+ Kf1 f2 Nd7 Nb2 Ne4 Nbc4 Ng7 Ba8 Nbc3 Qd3+ Ne2 Bc6 Nc3 Bf3 Nd1 Qe5 Rc1 a1Q Be3 Qf6 Rg1 Qae5 Bg2 h1R Nf5 h2 Rb7 Bd4 Rc2 Nb6 Qc4 Na8 Nh6 Bb6 Rd2 Bd5 Bf3 Bc6 Kg2 f1R Bd5 Re1 Kf2 f3 Nf4 Re2+ Kf1 f2 Nh3 Re1+ Kg2 f1N Rf2 Re2 Bf4 Ne3+ Kg3 Rb2 Rgg2 Rf1 Rf3 h1R Rh2 Re1 Rff2 Nc2+ Kg2 Re4 Rf3 Nb4+ Rf2 Rf1 Rh1 Rb1 Rf3 Rf2+ Kg1 Rc1 Rh2 Nd4 Bf7 Nd5 Be6 Qf8 Bf7 Ne6 Nf6+ Kh8 Nfg8 Kh7 Bd2 Qe7 Rf5 Q7f6 Bf4 Re3 Qb4 Nc3 Qc4 Bf3 Be8 Re4 Ba4 Nd5 Bb3 Qb2 Nf7 Nf8 Nfh6 Re7 Rh1 Qbe5 Ng5+ Kg7 Rh2 Ne6 Rh5 Kh8 Nh3 Kg7 Rfg5 Kh7 Rf5 Rf1+
1K1q2r1/NR1bN2B/1nB3B1/3nk3/q1q2Rbr/2rQ2B1/1RnP2Pn/b5q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 a4 b5 a5 f5+ Kd4 c5+ Kd3 h3 e4 h2 a6 b3 a7 h4 Ra3 f3 Qe2 c4+ Kd4 f2 Nc3 b2 Ra1 b1N Ra5 h3 Ba3+ b4 Na2 f4 Ra4 c3 Qb5 f3 Ne2 c2 Qd3 c1R Nac3 Rh4 Nf4 Bg4 Ng6 Nd7 Ne7 Bg7+ Kc4 Rc2 Kb5 Ngf6 Ka6 Nb6 Kb7 Ke5 d6 b3 d7 b2 Nb5 Nfd5 Rb4 Rac8 a8B R2c3 Na7 Bf6 Rg1 h1Q Rd4 h2 Bd6+ Ke6 e5 Na3 Rb4 b1B Rb2 Nc2 Be2 Bh8 Rf1 Qg1 Bc7 h1Q Bd1 Qe8 d8R Qa4 Rd7 Rg8 Bb8 Qhh2 Bd6 Qhf4 Be2 Qf6 Bc7 Rg6 Kb8 Rg7 Bc6 Rg8+ Bd8 Ba2 Rb7 Bc4 Bd1 Bb5 Be2 Rg5 Bc7 Rg8+ Nec8 Qd8 Bd1 Kf7 e6+ Kf6 e7 Ke6 e8B Be5 Re1 f1Q Re4 f2 Rf4 Qe2 Bh5 f1N Bg6 Nh2 Bh7 Qef1 Bf3 Qe2 Bfe4 Bh8 Beg6 Qee4 Rf1 Qec4 Bg3 Bd4 Rf4 Ke5 Rb4 Ra3 Rb1 Ba1 Rb4 Rc3 Rb2 Qf8 Bce8 Bbd7 Ne7 Bc8 Bb5 Qd8 Bc6 Bcd7+
2r4b/R1rr2qn/r2PBk2/1P1KNq2/1bNn4/B1R1q1n1/n5RB/1b2Q2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 c5 Ke4 a5 d4 f5+ Ke5 h5 g4 f3 e4 f4 b4 a4 g5 a3 d5 f2 g6 h3 g7 h2 b6 h4 b5 c3 b7 f3 Qa4 a2 Qa7 c2 Bh6 c1N Qa4 c4 Bh3 f1Q Qb3 f2 Kd4 c3 e5 c2 e6 Qd7 Be3 Qe1 Qa4 f1Q Bd2 Nc6+ Kc5 Ra6 b8B Kf6+ e7 Nd4 Bbf4 Qe3 Bf5 h3 Qb3 Qb7 Bg4 Bf5 Qc3 Bg6 Bd6 Qf5 e8R Qf7 Na3 Be7 Rb1 a1B Nc4 Na2 Ra8 c1R Nf3 Rc2 Rhc1 h1N Ra7 h2 Nfe5 Ng3 Rh1 Rh7 Bc1 Rd2 Rb3 Rd1 Rg1 h1R Qe1 Rh8 Rc3 R1h7 Rh1 Rd2 Na5 Rc2 Kc4 Qf8 Bda3 Bb4 d6 Qe7 Kd5 Qf8 Rd3 Rc7 Rc3 Kg5 Bd1 Ne4 Nb3 Ne6 Rc6 Qf1 Bf3 Qef4 Nd3 Ngf6+ Kc4 Qd2 g8R Rhd7 Bg4 Nh7 Kd5 Qh3 Bcb2 Qde3 Be5 Qf6 Rg7 Rhc8 Bh2 Qf7 Rg8 Bh8 Rc3 Kf6 Na5 Nd4+ Be6 Bf5 Rgg1 Qg7 Rg2 Ng3 Ne5 Bb1 Nac4 Qf5
1br2k1K/2QP2NB/2R1qq2/n1R2n1B/3bN1P1/3q3q/N2r1BN1/3r1brn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 h5 g4 a5 d4 a4 e4 a3 b6 a2 e5 c3 d5 h3 b7 c4 b5 c2 d6 h2 b6 c3 e6 h4 e7 h3 Qd3 Qd7 Ne2 Qe6 Nd2 Nh6 Qc4 Nc6 b8N Ba6 b7 Na5 Nd7 Rc8 b8N Rh7 Bb2 c1R Qc7 c2 Ne4 Rd1 Rc1 a1B Bd4 Bb5 Bg1 Bd4 Ndc5 Bfg7 Nba6 Bge5 d7+ Kf7 e8B+ Kf8 Rb1 c1R Nb4 Rd2 Bf2 Rcd1 Rg1 h1N Bh5 h2 Na2 Bc4 Rb6 Bd3 Qc6 Bb8 Qc7 Ba6 Rc6 Re7 Kg2 f3+ Kh3 f4 Kh4 Nf5+ Kg5 Bc4 N2g3 Rh7 Bd3 Ba6 Bc2 Bf1 Nd3 Re7 Ne1 Ree8 Be3 f2 Ng2 f3 Bb1 Bc4 Rc5 f1Q Bf2 Qd3 Re1 Bb5 Re2 Rg1 Rc6 Rdd1 Rec2 Re7 R2c5 Rh7 Be3 f2 Bc2 f1Q Bf2 Qd5 Kg6 Qe6+ Nf6 Re7 Ne4 Ree8 Kh7 Rd2 Ne1 Qfh3 Ng2 Qh4 Nd5 Qhf6 Nde3 Nh6 Nc1 Qa3 Bd1 Qee5 Ng5 Ng3 Rc4 h1Q Bc2 Qh3 R4c5 Nh1 Nf5 Bf1 Na2 Qe2 Be4 Qad3 Ng7 Qe1 Beg6 Nf5 Kh8 Rd1 Bh7 Re2 Re5 Red2 Rec5 Qe8 Ne4 Qee6
3RbNBq/1bk3b1/5n2/n3Pr1B/1B1bP1B1/nn1Q4/K1Nn1Rn1/3rr2R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 d5 e4 Kd7 a4 g5 c4 f5 Kc2 b5 Kb2 d3 h4 d4 h5 d2 h6 d3 a5 b3 c5 b4 a6 f4 h7 f3 a7 g3 c6+ Kc7 Bh3 f2 Qc2 d1B Ra5 f1N Rh2 d2 Ka1 b2+ Ka2 g4 Rg2 Bb7 Rb5 Bg7 Nc3 b1N Qb3 Na3 Qc2 b3+ Kb2 Nf6 Nge2 Ne3 Nb1 Rf8 Rf2 g2 h8R g1B Rd5 g3 Nf4 g2 Ng6 Bh5 Qd3 d1R Bd2 Qc8 Ka1 b2+ Ka2 Rf7 Rh7 Qh8 Nf8 Bg6 Bb4 Re1 Nc3 b1N Bg4 Nd2 Ne2 Nb3 Bh5 Rd7 Nd4 Be8 Nc2 Rd6 Rf4 Bf2 Rd4 g1N Rh6 Rd7 Rh7 Rf7 Rd8 Ng2 Rf5 Bd4 Rf2 Nf3 Rh6 Kb6 c7 Nfd2 c8B Nc6 Bcg4 Kc7 Rh7 Rb8 a8B Nca5 Rh6 Ng8 Rh7 Rf5 Rh6 Nf6 Rh7 Ba6 Bd5 Bb7 Bg8 Rc8 Bg6 Ra8 Rh1 Ra6 B6h5 Rc6 Ne3 Rcc1 Nc2 Rcd1
7b/RR6/1r2bq2/rQRB1Bb1/3b2rN/3NbrRn/qB1PbPn1/3K1k2 w - - 0 1 illegal: No possible last move
1RN1q3/2BR1bB1/B1N1n3/2rrB2q/QKn2P1q/1q5k/qP1n4/2b1Rnq1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kg6 c4 Kh5 c5 a5 f3 g5 b6 e5 c6 d5 b7 d3 Kc3 g3 c7 d4+ Kb3 d2 Ra4 g4 Rc4 d3 Nh3 a4+ Kc3 a3 Rg1 g2 Qb3 d1Q Rc6 g3 Rh1 g1N Bh6 e3 Rd6 e2 Bd2 e1N Rh2 a2 Be3 a1Q Rd2 g2 Rd7 e4 Rf7 Be6 c8R Qa2 Rcc7 Nc2 Qa4 Nd7 b8B Ne7 Rh7+ Bh6 Na3 Nc6 Ng5 Nf8 Rf2 d2 Bf4 e3 Ba7 e2 Bb6 e1Q Rcd7 Bf7 Ne4 Na5 Nc4 Qe8 Bbc7 Ne6 Ne5 Rc8 Nd6 Nc4 Re2 N2e3 Kb4 Qc2 Nc6 d1Q+ Rd2 Rg8 Be5 Rg5 Rh8 Rd8 Be2 Nf1 Nc8 Qf2 Bg7 Rc5 R2d4 Qh7 Re4 Bc1 f4+ Nf3 Rg8 Kg4 h5 g1Q h6 Qg6 h7 Qh5 h8B Kh3 Bd3 Qdc2 Re1 N3d2 Bge5 Qfh4 Bhg7 Nd6 Ba6 N6c4 Re7 Rd4 Rd7 Rdd5 Nd6 Qee7 Rb8 Qe8 Nc8 Qcb3+
3bK3/rBn1N3/r1P1b3/N3bn2/b1N1R1rk/qr3RRP/2bB4/2NQ2qb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 a5 e4 f5 c4 a4 b4 g3 b6 a3 b7 a2 e5 g2 h3 d3 c5 d2 e6 f3 b5 f2 e7 f4 Kd6 f3 c6 Rh7 b6 Ra6 Ba3 Nh6 Bb5 f1R Qc2 d1B Qa4 f2 Bb4 Kh4 Nd2 g5 Ba3+ g4 Rc1 a1B Rc3 Bc2 Bb4 g3 Nb3 Rb1 Ne2 f1B Nec1 g1Q Na5 g2 Rg3 Rb3 Bd2+ Bd4 Qa1 Bfd3 Qb1 Be4 Be2 Bfg7 e8N Bgf6 Ng7 Qf8+ Kc7 d5 Bd3 Qh2 Rf1 g1R Rf3 Qa3 Bc4 Bfe5+ Kd8 Be6 Ke8 Nf5 Bd3 Bf2 Qa1 d4 Bb5 Nd7 b8R d3 b7 Nb6 Rc8 Bfd4 b8N Nd5 Nd7 Bb6 Qd4 Bbc7 Nb6 Bd8 Nbc4 Rg2 Rc7 Qg1 Re7 Nc7+ Kf8 Ra8 Ba6 Ra7 Bb7 Ra6 Nh5 Rg7 Nf6 Rg4 Ng8 Rg7 Bb4 d2 Qa1 d1B Bd2 Rg4 Qd4 Rf2 Qd6 Re2 Re8 Ree3 Ne7 Ra7 Qd4 Rb6 Qd5 Rba6 Qd3 Ba4 Qe2 Bdb3 Qd1 Bbc2 Rf4 Bh1 Rff3 Bc8 Kf7 Rc3 Ng8 Bef6 Re4 Be5 Ne7 Rb3 Kf8 Bd7 Kf7 Be6+ Kf8 Na8 Ke8 Nc7+
Bk2r2B/1r2R3/P2PN1rr/2Q2n2/2b3b1/NN2Nbnb/3B1b2/1n1RqnK1 w - - 0 1 illegal: No possible last move
bKqRnq2/2rbbqP1/2b3Q1/B1q1R1P1/4n3/k3N2r/2BR3N/b3b1NN w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 e5 c4 Ke7 a4 Kd6 g4 Kc5 f4 d5 a5 b5 f5 h5 f6 e3+ Kd3 h4 a6 e2 f7 e1B g6 e4+ Kc2 d3+ Kb3 d4 g5 e3 a7 d2 g7 d3 Qf3 d1B+ Ka2 e2 Kb2 b3 Ka3 h3 Qf6 b4+ Ka4 d2 Qb2 h2 Ra2 Nd7 Nc3 Ndf6 Nb1 Ne4 Qf6 Rh3 Qg6 Be7 f8R Ngf6 Re8 Qc7 Rd8 Ne8 Bg2 Qc6+ Ka5 b2 Bf1 Rb8 a8N b3 Nc7 Bd7 Nd5 Rc8 Ne3 Rc7 Bg2 Qd5 Ka6 Kb4 c5 Qf7 c6 Bc2 Bf3 d1Q Nd2 b1Q Ndf1 Bc3 Bd2 e1B Be2 b2 Bd3 Ba4 Bc2 Qa1 Kb6 Rc8 Ka7 b1Q c7 Bac6 Ra5 Qbc1 Ra2 Rb8 c8N Qdf3 Nd6 Rc8 Ndf5 Rc7+ Kb8 Qf2 Rb2+ Ka3 N5g3 Qf8 Rb5 Q2f7 Re5 Bd4 Bc3 Qaa2 Ba5 Ba1 Nf3 Ba8 Rg1 h1B Rg2 Qac4 Ng1 Qa6 Nh2 Bac6 Rd2 Ba8 Bd1 Qc5 Ba4 N4f6 Bc2 Bhc6 Nh1 Ne4 Rg2 Be6 Re2 Bed7 Rd2 Qc8+
4NB1Q/1BNqPBN1/3b1n1n/nn6/br3qP1/1N1knq2/3nR3/K1rq2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb2 a5 c5 f3 b6 a4 c6 f4 b7 f2 c7 h3 b5 h4 b6 d3 Be2 Kd4 e5 f1Q e6 f3 Na3 d2 Qb3 d1N+ Kb1 f2 Ra2 h2 Qb2+ Nc3+ Ka1 h3 Nb1 a3 Bb5 Nh6 Ba4 Bd7 c8B Kd3 Bb3 d4 Bd1 Bd6 e7 Ra4 Bf3 Nb5 Bg5 Rb4 Bf4 Qd1 Bc6 f1N Bg5 Nd2 Bd5 Rf8 Be3 Rf1 Ne2 Be8 Bf4 Qd7 Rg1 h1Q Bf7 h2 Ng3 Qe4 Nf5 h1Q Ng7 Qhf3 Be5 Qef4 Bf6 Nc6 b8N Na5 b7 Ne4 Na6 Re1 Be5 Nf6 b8N Rf1 Qh2 Re1 Re2 a2 Bb7 Rf1 Bb3 Re1 Nc7 Rf1 Kb2 a1N Nba6 Nc2 Nd2 Nca3 Qh1 Nb1 Ka1 Qc2 Bf7 Rc1 Qh4 Qd1 Qh3 Kc2 Qh4 d3 Nb3+ d2 Qh1 Kd3 Qh3 Nf5 Qh8 Nh6 Bd4 Qe1 Be5 d1N Bd4 Ne3 Bc3 Qd8 Be5 Bc6 Nce8 Qd7 Nac7 Qd1 Nf5 Nh5 Bg7 Nf6 Bf8 N5a3 Nbd4 Ba4 Nb3 Nb5 Nfg7 Nd2+
1Rn4q/kPqN2b1/4PnR1/q1n1B1rB/BKRNn3/n4r2/4Qq2/3b2Bn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 Kc7 g4 Kb6 c4 h5 g5 a5 c5+ Ka7 c6 f5 c7 a4 e5 d3 Kc3 d4+ Kc4 f3 g6 d2 g7 f2 Bg2 f1Q+ Ne2 a3 Bf3 h3 Qc2 d1N Qa2 h2 Bg2 h4 Bh6 d3 Nd2 f4 Ng3 h3 Be4 f3 Bg5 f2 Bh7 Na6 Kb3 Ne3 Rc1 Nc5+ Kc3 Ng4 Bg6 N4f6 Bh5 Ne7 g8R Bg7 Be3 Bg4 c8B Qc7 e6 Bd1 Nc4 d2 Rg1 h1Q Ne2 h2 Bd7 Rf8 Ne5 Nc8 Rg6 Qe1 Bd4 f1Q Bg1 Qef2 Nd4 Rf7 Qc4 a2 Qe2 a1N Kc4 Nc2 b6+ Ka6 b7 Na3+ Kc3+ Ka7 b5 Rh6 Kb4 Rh7 Bf3 Rh5 Rc4 Rf5 Bh5 Rg5 Qe1 Qd3 Qe2 Rf8 Nb3 Qdd6 Nd4 Qa6 Rh8 Qhc6 Be8 h1N Nd7 Qb8 Rg8 Qcc7 Rh8 Ba4 Rg8 d1N Rh8 Qa8 Rg8 Nc3 b8B+ Kb7 b6 Bd1 Rh8 N3e4 Rg8 Nh7 Rh8 Rf3 Rg8 Nhf6 Rf8 Qch2 Be5 Qb8 Rh8 Qc7 Rg8 Ka8 b7+ Ka7 Nf8 Nb1 Ba4 Na3 Nd7 Qhh4 Bg4 Qh8 Bh5 Nb6 Rb8 Nc8 Rc1 Qh2 Rc2 Qf2 Rc4 Qaa5#
4bR1N/P1nq2B1/Q4B1q/1P4KB/1b1R3R/1qb4N/B2rb1b1/1brkn2q w - - 0 1 illegal: No proof kernel
RnR3q1/4b3/2n1krB1/nqRbr1B1/rrn3b1/4N2N/2PPN1b1/3RQ1K1 w - - 0 1 illegal: No proof kernel
bnB2NkN/b1BQ1R1q/1N6/q1R2r2/3Prr2/n2q2rn/qKB2P2/2N2n2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 b4 c5 d4 a5 Kd2 h5 Kc2 e5 g5 a4 b6 a3 b5 a2 b7 e3 b6 e2 Kb2 e1R Na3 e4 Rh3 e3 Rb1 a1Q+ Kc2 c3 Rh2 e2 Rh1 h3 Nb5 h2 Rb3 h4 Rb2 h3 Na3 c4 Bg2 Rh4 Rb3 Rf4 Rb4 Ne7 g6+ Kg8 g7 Qa2+ Bb2 Nd5 Nb5 Ra3 Be4 Bc5 Nd6 Rb3 Kc1 c2 Nf7 Rg3 Ba3 Bf5 Bd3 Be4 Nh8 Ne3 Ra4 Nf1 Ra7 Qd5 Bb4 Qa5 Kb2 c1R Qa4 c3+ Ka3 c2 Kb2 Ra1 Qd7 c1N Bc2 Raa3 Bd2 Raf3 Be3 Rf5 Bf4 Qf7 Bc7 R3f4 Nf3 Qc4 Nd2 Qd3 Nb3 Bd5 Rg1 h1Q Rg2 h2 Rg1 Na6 b8N Ba8 b7 Qd5 Rg2 h1Q Rh2 Na2 Rh5 Nc3 Nc1 Nb5 Rg5 Qh6 Rh5 Na3 Rg5 Qf7 Rh5 Kh7 g8B+ Kg7 Bh7 Kf8 Bg6 Kg8 Rg5 Qhh7 Rh5 Rf6 Bf5 Qe6 Bh3 Bb6 Rc5 R6f5 Nc6 Qef7 Ne5 Nb8 Neg6 Qfc4 Nf8 Qd5 Ra6 Ba7 Rb6 Rd1 Ra6 e1N Rf6 Nf3 Rf7 Ng5 Bg4 Re1 Bh3 Na6 b8N Q5c4 Nc6 Qca4 Nb4 Nb8 Nd5 Ree4 Bg4 Nh3 Nb6 Re8 Bf3 Qac4 Bb7 Ree4 Bc8 Qa2+
N1b5/6b1/3rBqRK/2k3rN/Q1n1PP1n/1R2pB1q/2r1q2r/NrBb2N1 w - - 0 1 illegal: No proof kernel
K1Q3Bk/B1N1r2N/b1R2q2/1r3BP1/Bq1rn3/PqbN3r/2nR2rp/1b6 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 f5 Kd3 Kf7 Kc4 Kg7 Kd5 h5 g4 b5 e4 b3 c4 d3 a3 f3 e5 f4 c5 f2 e6 d2 e7 f3 e8B b4 g6 b2 c6 b3 g5 h4 c7 h3 Qc2 d1R+ Nd2 b1B Bb5 f1Q Bb2+ Nf6+ Kd4 d5 Bed7 h2 Bd3 f2 Qc3 Qe7 B3f5 Ba6 c8N Rh3 Ne2 Ra7 Nd6 Ne4 Nb5 Kh8 Nc7 Qb4+ Qc4 Rb7 Nc1 Bh6 Ke5 d4 Kd5 Bg7 Ra2 d3 Ba4 Nc6 Bd4 b2 Ba7 Bc3 Rg1 Nd4 g7+ Kg8 Qc5 Nc2 Kc6 Rb5 Rg4 Re1 Rh4 Re2 Rh6 Qd1 Re6 f1Q Rg6 Kh7 g8B+ Kh8 Qf8 Rg2 Qc8 Re5 Rf6 Re7 Rd6 Bb5+ Kb7 Ba6+ Ka8 Qf2 Re6 Qfd4 Rc6 Qf6 Nf3 d2 Nh4 Qf3 Nd3 d1R Ng6+ Kg7 Ne1 Rd4 Nf8 Kh8 Nd3 Qe3 Nf2 Qd3 Nh7 Qdc4 Nd3 Qcb3 Ra1 Ba2 Re1 b1R Re2 Rb2 Rf2 Bb1 Rd2 Qbd6 Ne1 Qbe6 Qf8 Rb5 Nd3 Qb3 Qc8 Qdb4
1n1bqq1q/2k1B2B/1R4b1/r1b2PBr/1PK2Rp1/3Rq1n1/NqQ5/1n1NR3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 d5 c4 Kd7 f4 g5 b4 e5 b6 d3+ Ke3 d2 c5 a4 h5 g3 h6 g4 b7 d4+ Ke2 g2 h7 d3+ Ke3 a3 c6+ Kc7 Rh5 a2 Nh3 g1B+ Nf2 Ra5 Rh1 Nf6 Qf3 d1Q Rh5 d2 Bh3 Qc2 Qe2 Qb2 Nc3 Be7 Bg2 Qf8 Rf5 Bd8 Rb1 a1Q Na2 Nh5 Qd3 d1Q Qc2 Qd7 Ke2 e3 Be4 Qde8 Kd3 e2 Kc4 e1Q Nd1 Ng3 Bd3 Nd7 b8R e4 Rb6 e3 Rf6 e2 Rf7 Rg8 h8B Rgg5 Bf6 Rh5 Bh7 Bc5 Be7 Nb8 f5 Bd7 Bcg5 Qd2 Rf6 e1N Rd6 Qe3 Rd3 Nf3 Rc1 Kc8 c7 Nd2+ Kd5 Bb5 Rb1 Kd7 c8R Qbh8 Rcc6 Qab2 Re6 Ba4 Re4 Kc7 Rf4 Bd7 Rc1 Nb1 Kc4 Bc6 Ndc3 Bd7 Re1 Be6+ Rd5 Bf7 Nd1 Bg6 Rdd4 Ne2 Rd3 Ng3
4qr2/k1q4Q/bqnR4/1n2P1K1/r1pB1P2/2qRR1q1/B5Bb/1NR1rn1N w - - 0 1 illegal: No proof kernel
bq2n2k/1B3r1r/QRNb4/2nP1b2/1n4qN/b2N1q1P/3RBp2/Kb2N1B1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 g5 Kd2 f5 Kc2 Kf7 Kb2 Kg7 e4 b5 a4 c5 h3 c4 d6 b3 e5 b4 e6 g3 d7 g2 e7 g4 e8B g3 d5 f3 a5 f2 a6 f4 a7 f3 Ra3 c3+ Ka1 c2 Ra2 Nc6 Na3 Rh7 Nc4 Nf6 Kb2 Kh8 Nb6 Bb7 Ra6 Bd6 Be2 f1Q Qd3 Qb8 Be3 c1N d8N Qf2 Qb5 Nd3+ Ka1 Nc5 Nc4 Rf7 Bd7 Ne8 Bc8 Rh7 Rb6 b2+ Kb1 Rf7 Ne5 Qf1+ Ka2 b1B+ Ka1 b3 Rh2 Nb4 Ndc6 Qf2 Qa6 Bf5 Nd3 b2+ Kb1 Nc2 Ka2 b1B+ Kb2 Nb4 Ne1 Qc7 Ka1 Rb8 Bc1 Ba8 Bb7 Rd8 Bd2 Qb8 Be3 Rdd7 Bc8 Bb7 a8N Rde7 Nc7 Ba8 Ne6 Rh7 Bf1 Ref7 Nf4 Qe2 Bb7 Qf2 Nge2 g1B Ned4 g2 Nfd3 Qg3 Be2 Bf2 Nb2 g1Q Nbd3 Qf1 Rg2 Qg4 Rh2 Bfg3 Bg1 Bgf4 Rg2 Bc1 Rh2 Ba3 Rf2 Bg6 Nf5 Qfg2 Nh4 Bf5 Bd1 Qh1 Rd2 f2 Be2 Qhf3
1NRB1n2/2Qq4/bqR2r2/b1PRR3/1bq1KPB1/kbN5/n1rp4/N1r1b3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 c4 Ke7 b4 Kd6 b6 e3+ Kd3 h3 b7 e4+ Ke2 h4 g5 d3+ Ke1 a4 b5 Kc5 b6 Kb4 g6 d5 g7 e2 Kf2 e1B+ Ke3 d2 Rh2 d4+ Ke2 e3 Kd3 a3 Qe2 d1Q+ Nd2 a2 Qh5 e2 Qf7 Na6 b8N Rh6 b7 Ne7 g8R Ng6 Rg2 h2 Rg5 h1Q Rc5 h3 Rg5 h2 Bh3 Qb6 Rc5 Qhc6 Qc7 h1B Qg7 Bd5 Bb2 Qb3+ Bc3+ Ka3 Bg4 Qd7 Rc6 Bb4 c5 Nf8 Rd1 a1R Qf7 Qa4 Rg5 Rf6 Nb3 Rc1 Na1 Bb3 Ke4 d3 Re5 Qab5 Bd4 Qc4 Qh7 Bed2 Qg7 e1B Ne2 Ba5 Nc3 Nb4 Qe7 Rc2 Qd6 Na2 Qc7 Qg8 Bf2 Qgf7 Bh4 Ra7 Na4 Bdb4 Nc3 Rc1 Na6 Qg8 b8R Bb7 Rc8 Qc4+ Ke3 Rc2 Nb8 Ba6 Rd2 Rf5 Bd8 Rf6 Re2 d2 Rd5 Rc1 Kf3 Rc2 Ree5 Rb7 Re8 Qbb5 Ne2 Ba4 Qe5 Bc3 Qc7 Qb1 Bf5 Rc1 Re7 Rb2 Bg4 Rbc2 Ree5 Qb6 Ke3 Bcb4 Nc3 Bb3 Kf3 Qcb5 Ke4 Qc4+
1k3r1n/Rnn3r1/1qB1NBr1/bP1Q1PKN/bqR5/pb2B3/Bn4nR/8 w - - 0 1 illegal: No possible last move, all moves rejected
N2q2k1/n1BNR1N1/r1q1pr2/b2n2q1/4R1b1/P2BR1q1/1K1nrPN1/1Q1q4 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kf7 d4 b5 Kd2 h5 Kc2 c5 g5 c4 a3 b3+ Kb2 b4 d6 h3 d7 e3 d5 e2 d6 e1R Be3 c3+ Kc1 h2 Bg2 b2+ Kc2 h4 Ne2 h3 Nd2 b1N Bf1 Nf6 g6+ Kg8 g7 Nd5 Nc4 Nd2 Bf4 Nc6 Nb6 Ra6 Na8 Na7 Qb1 Rh6 Rg1 h1Q Rg3 h2 Re3 Qf3 Ra2 Kh7 g8N h1Q Nf6+ Kh8 Be5 Qg3 Nf4 Re2 Ng2 b3+ Kc1 c2 Kb2 Qhh4 Re4 Qhg5 Ra1 Qc7 d8R Bg4 Nd7+ Kg8 Re8 Rf6 Ra2 Qd8 Bf4 Re1 Bd3 c1Q+ Ka1 Nc4 Rae2 Nd2 R2e3 Qc6 Kb2 Re2 Nb8 Be6 d7 Bf5 Bc7 Bg4 Ka1 b2+ Ka2 Qc8 d8N Q8d7 Ne6 Qd8 Ng7 e6 Qd1 Qdd7 Re7 Qd8 Nh5 Bg7 Nd7 Bh6 Qb1 Bf8 Rf7 Bb4 Re7 Bc3 Ng7 Ba5 Qc2 Nf1 Kb3 b1Q+ Qb2 Qe1 Qb1 Nd2+ Kb2 Qd1
nR1KNrb1/N1n5/3Rp1P1/5k2/1BNb2NQ/2r2bn1/1P5q/qrn2nBB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 h5 g4 d5 b6 a5 g5 a4 c5 d3 Kc3 e3 Kb4 a3 Kb5 e2 c6 e1N b7 h3 g6 h2 c7 d4 Kb6 d2 Qf3 d1B Be2 h4 Nh3 a2 Qf2 d3 Qe3+ Kf5 Nc3 d2 Nf2 h3 Nb1 Na6 b8B Nd3 Ba7 Be6 Bf3 Nf6 Qd4 Bg8 Na3 e6 Nc4 Bg7 Ng4 Nd5+ Kc6 Rh7 c8N Qh4 Kd7 Nb6+ Ke8 Qf2 Kd8 Nc7 Bb7 Be2 Rd1 h1R Bg2 Rg1 Bh1 Qh2 Qf2 Rb8 Qh4 Nba8 Bf2 Rb3 Na7 Bf3 Bc5 Rc3 Bb4 Ke4 f5 Rh8 f6 Kf5 f7 Bd4 f8N Rf1 Rb1 a1Q Nd7 Rg1 Rf1 d1N Ndf6 Ne3 Rd1 Re1 Ne8 Nf1 Be3 Nc1 Rd3 Qd2 Bg1 h2 Bg2 h1N Re3 Na2 Rd1 Nhg3 Bh1 Qh2 Rd2 Rb1 Rdd3 Bc5 Rd6 Nc1 Red3 Be3 Rb6 Bd4 Rb8 Rh7 Rd1 Rf7 Rd2 Rf8 Rd1 Bc5 Rd6 Bd4
4rn1R/K1r3R1/1nP2qR1/NN2bkP1/1q2p3/1nQR4/b1N2qq1/2Bb2qB w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 a5 b4 h5 g4 e5 c5 d5 b6 e3+ Kd3 e4+ Ke2 a4 c6 d3+ Ke1 e2 Kf2 a3 Ke3 e1Q+ Kd4 d2 b5 h3 g5 h2 b7 h4 b6 a2 Na3 h3 Nc4 Bd6 Nf3 Be6 Na5 Kf5 Bg2 Be5+ Kc5 d4 Qb3 d1B Qc3 Qf2 Ne1 Ne7 Nc2 d3+ Kb5 Nd7 b8N d2 b7 Ng6 Na6 Qf6 b8R Bb3 Rb7 Rae8 Nc7 Nb6 Ka6 Nf8 Nb5 Bg8 Rb1 a1N Ka7 Ba2 Rg7 Nb3 Rf1 h1Q Rg6 Na1 Rb3 Qhg1 Bh1 h2 Ra3 Nb3 Rg7 Bh5 Rg6 d1Q Rg7 Kg4 f5 Qdd6 Rd1 Qb4 Rd6 Qh6 f6 Kf5 f7 Bd1 Rdg6 Rc8 Bf3 h1Q Bg2 Qh1h2 Bh1 Qhg2 Bb2 Ne6 Bc1 Rhe8 f8R+ Bf6 Rfg8 Nf8 Rh8 Be5 Rb7 Qg7 Rd7 Qf6 Rdg7 Qc4 Ra4 Qcc5 Rd4 Qb4 Rd3 Rc7+
B6q/nr1N1bbq/B1pKP3/Pb1N4/k1N2Bqb/n1b2Q1r/2r5/1N1R2R1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Kd7 Kg3 Kc6 Kf4 Kb5 h4 f5 d4 g5+ Kg3 c3 e6 c2 e4+ Ka4 a3 b5 h5 c6 h6 f4+ Kg2 g3 Kf3 b3 e5 b4 Ke4 g4 d5 f3 h7 f2 e7 b2 e8B b3 d6 g2 d7 g3 Rh4 Ne7 Kf4 Bg7 Nh3 g1Q Qd6 g2 Qd3 Na6 Qf3 Nb4 Ba6 f1B Rg4 Bb5 Bh5 Qe8 d8N Be6 Bb7 Bf7 Ne6 Nc8 Nf8 Na7 e6 Qc8 Be3 c1B Nd7 Bd2 Ke4 Qe8 Nf4 Bdc3 Nd5 Nc2 Bf4 Rb8 Ba8 Rb7 Kf5 Qd1 Rg5 g1B Bg6 Bf2 Rg1 Bh4 Ke4 Ka5 a4 Na3 Bf5 Qg8 Bh3 Qd8 Bf1 Qf8 Qh1 Qg4 Qf3 Rg8 h8N Qe8 Nd2 b1R Ng6 b2 Nge5 Rc1 Nb1 Rc2 Bd3 Rh8 Nc4+ Ka6 a5 Rh5 Nbd2 Qh8 Rad1 b1Q Be2 Bd8 Bd3 Rh3 Bf1 Bh4 Bd3 Qb2 Nb1 Qh7+ Ke3 Ba4 Bg3 Kb5 Bf4 Bb4 Bf1 Bh6 Ncd2+ Rc4 Be2 Qbh8 Bd3 Bg7 Bf1 Q7g8 Kd3 Rc2 Ke4+ Nc4 Be2 Bbc3 Bd3 Bb3 Be2 Ka4 Bf1 Na3 Ba6 Qg2 Kf5 Bc4 Ke4 Bb5 Nc4 Bb4 N7f6 Qg4 Ke5 Bd2 Kd6 Qgh7 Nd7 Bdc3
1rB3N1/knn3q1/qprP1Rb1/Q1P2R2/1q1B2K1/q6r/1b2b2B/NBq1R3 w - - 0 1 illegal: No proof kernel
r4Q2/Nr1bR1K1/Pkq2n1R/n1r1Br1q/7b/qB2rB2/P3pBN1/1b1R4 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 gxh4 Bc4 c5 Bf1 cxd4 Kd2 h5 f4 b5 c4 d5 g4 Kd7 g5 Kc6 g6 e5 c5 d3 Ke3 d2 a6 d4+ Kf2 d3 Ke3 h3 g7 h2 f5 b4 f6 b3 f7 h4 Bb2 h3 Bc1 b2 Nc3 b1B Nd5 Qa5 Qf3 d1R Nc7 d2 Bb2 Rh5 Qf5 Bd7 Ne2 Be7 f8B Rc1 Bg2 d1R Nf4 Bh4 Bf3 Nf6 g8B Qa3+ Bb3 Rd5 Ng2 Rh7 Re1 h1Q Nb5 h2 Na7+ Kc7 c6 Kb6 c7 Rcc5 c8R Nc6 Bh6 Na5 Rh8 Re7 Re2 Qd1 Bg5 h1Q Rh6 Qc2 Qf4 Qc4 Qf5 Qca4 Bd4 Qc6 Bf4 Qh3 Bg3 Qg4 Bf2 Qh5 Qg4 Rh7 Qg8 Rg7 Re1 Rf7 Qf8 Re7 Ke2 e3 Rd1 e4 Be5 Rf7 Re1 Bc2 Rad1 Bb1 Kf1 e2+ Kg1 e3 Kh2 Bg5+ Kg3 Bh4+ Kf4 Rg7 Rd4 Rh7 Red1 e1R Re4 e2 Re3 Rf1 Re4 Rd3 Re3 Be8 Re4 Rb7 Re3 Qf7 Kf5 Qfd5 Re4 Bd7+ Kg6 Rc3 Kg7 Re3 Bc3 Qh5 Re7 Rf5 Be5 Re1 Rd6 Rc1 Rd1 Rc5
n2rq1BB/5RR1/p2b1qnr/n2R1n1n/1R1b1P2/K5N1/2bk1P1Q/q3N2B w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 a5 f5 a6 f4 exf4 bxa6 Rh2 a5 Rh1 a4 Kd2 Kf7 b4 Kf6 g4 e5 c4 d5 Kc2 h5 Kb2 e4 g5+ Kf5 b5 d3 c5 d4 b6 e3 b7 Ke4 g6 a6 g7 d2 c6 a3+ Ka2 d3 c7 e2 Qb3 d1N Qc2 e1Q Bd2 h3 Kb3 h4 Bc1 a2 Nf3 h2 Ng1 h3 Be2 Qf6 Qc5 d2 Bf1 Rh6 Kb4 Bf5 c8R Ne7 g8B Nd7 b8R Ne3 Rb7 d1N+ Ka3 Nb6 Bg2+ Kd3 Bd2 Nb2 Rcc7 Rd8 Bf3 Na8 Bc3 Ng6 Rg7 Bd6 Rbf7 Kc2 Ne2 Nbc4+ Ka4 Bd3 Nd2 Na5 Qh5 Nf5 Rb1 a1B Ng3 Qe8+ Rb5 Be4 Rb1 h1Q Rb4 h2 Ka3 Qc1+ Bb2 h1N Qh2 Qg1 Be5 Bd4 Rd5 Kc1 Bg2 Bc2 Nf3 Qf1 Ne1 Kd2 Ne2 Nhg3 Bh1 Nh5 Ng3 Qh4 Rh7 Qg5 Bh8 Qf6 Rhg7 Qg1 Ng2 Qd1 Ne1 Qa1#
b3r3/3BqP2/2P1N1nQ/1qn3rr/B1R2brN/rqp4k/2R2K1n/B4RR1 w - - 0 1 illegal: No proof kernel
5qrb/2B1PRQ1/bqqnN1p1/4q3/2Rn1PNK/6R1/Nk1n1r1N/qr5B w - - 0 1 illegal: No proof kernel
rn3NR1/2bPb3/Pn2b1NR/1rr1B1k1/3Q3N/3KRnpb/b3q1B1/4Rq2 w - - 0 1 illegal: No possible last move, all moves rejected
1R1BqQ2/2p1bnN1/1N3qP1/qnk5/B3P3/3qN2N/1rqrR1b1/3r1RKn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Kd6 b4 f5 g4 h5 d4 a5 d5 c3 b6 f3 g5 c2 g6 h3 b7 a4 b5 h4 b6 a3 Bb5 f4 Ne2 a2 Bc4 h2 Na3 h3 Ng3 Qe8 Bd2 c1Q Ne2 Nc6 b8N Nh6 b7 Be7 Ng3 Na7 Bb5 Qc2 Nf5+ Kc5 d6 Nf7 Re1 h1R d7 h2 Ba4 Nb5 d8N Rf8 Rb1 a1Q Ng7 Bh3 Re2 Bg2 Nc4 Re1 Qc1 Rd1 Ne3 Ra6 Be1 h1N+ Kg1 Rb6 Qb2 Rh8 Qf6 Rh2 Rc1 Qac3 Rb1 Qa5 Nde6+ Kd6 Ng5+ Kc5 Rc1 Rbd6 Ra1 R6d2 Rb1 Rh4 Nh3 f2+ Kh2 f1Q Ra1 f3 Nd7+ Kb4 b8R f2 Nb6 Kc5 Qf4 Rg4 Qh6 Rg5 Qh8 Rgd5 Qf8 R5d3 Rb1 Rb3 Ra1 Rb2 Rb1 Rd8 Bc3 R1d2 Bf6 Qfd1 Bh4 f1Q Bg5 Qf6 Bh4 Bf1 Kg1 Qd3 Ra1 Q1c2 Rae1 Bg2 Rf1 Rd1 Ned5 Qdb3 Qh8 Qfc6 Kh2 Bg5 Ne3 R8d2 Kg1 Qbd3 Qf8+ Qcd6 Bg3 Bd8 Be5 Bh4 Bf6 Bg5 Bd8 Be7 Nc8 Qe5 Nb6 Qf6
q3rN2/1P2bRK1/1R4bQ/1r2kbnP/2Bpqb2/1b3B1q/1N1n1B2/B2Nr3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d3 b4 Ke7 e4 Kd6 h4 g5 c4 a5 b6 f5 b7 f3 Kg3 d2 b5 f2 b6 a4 h5 a3 Nf3 a2 Ne1 Na6 b8B+ Nc7 b7 f4+ Kh2 f3 Kg3 Qe8 Na3 Nf6 Nb1 Ra5 Ba7 Ne6 Bb2 Qe7 Bd3 f1Q Nc3 f2 Qc1 d1B Rb1 a1Q Be3 Qa2 Ba1 Rf5 Be2 Qa8 Nd3 Ra5 Rb5 Bb3 Nb2 Bh6 Bd1 Qd3 Be2 f1B Ncd1 Bg2 Rf1 Bf3 Kh2 g3+ Kh3 g4+ Kh4 g2 Qd2 g1B e5+ Kc7 c5 d5 c6 g3 Qc1 g2 Rb6 Be4 Rf2 Qc3 Bc4 Bg6 Bc5 Bf8 Qh6 Bh2 Rf5 g1R Bf2 d4 Rf4 Ng7 e6 Kd6 Rf5 Re1 Kg5 Qe8 c7+ Qc6 e7 Rb5 e8B Qh3 Bef7 Be7 Bfd5 Re8 Bf3 Be6 Qh7 Ne4+ Kh6 Nd2 Rf7 Bd7 Qh8 Ne6 Qh7 Nd8 Kg7 Ke5 Qh6 Be6 Ra6 Bg4 c8N Bf4 Nb6 B4f5 Nd7+ Kd6 Nf6 Ke5 Nh7 Qe4 Nf8 Ne6+ Kh8 Qc6 Rb6 Ng5 Kg7 Qe4
N5br/QPp1R1BN/1B1nB2N/2RK3b/3b3q/P2rk2B/rn2q2n/rr6 w - - 0 1 illegal: No proof kernel
3b3q/P2qr1Q1/R1N1N1r1/b1B1N2K/2b1n1B1/rb1N1RR1/2p1P1qk/n2b4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 d4 Kf6 a4 Kg5 a5 Kh4 h3 f5 a6 b5 d6 c5 d5 g5 d7 c4 d6 b3 Qc2 f3 Ra4 b2 Rh2 f4 Qc3 b4 Ra1 b3 Qc2 c3 Qg6 g3+ Ke1 f2+ Kd1 f3 Ra2 g2 Ra4+ Kg3 h4 g4 h5 Nf6 h6 Nc6 h7 Na5 Nh3 g1R Na3 b1B Qg5 b2 Nf4 Be7 Rc4 Bd3 Nb1 Re8 h8R Ne4 Qg7 Nb3 Nd2 b1B Ba3 Na1 Ra4 Bc4 Nd3 Bc2+ Kc1 B4b3 Rg8 Bd1 Bc5 c2 Bh3 f1Q Nc4 f2 Nce5 Qg2 Ra3 Qc7 d8N f1Q d7 Qf6 Ne6 Bd8 Ra5 Re7 a7 Ba6 Ra4 Bac4 Ra6 Rc8 Rf8 Qc6 Rh1 Ba5 d8N Qd7 Ndc6 Qh6+ Rf4 Qh8 Rf7 Rg8 Rf8 Rf1 Rg1 Kh2 Rf3 g3 Bg4 Rf2 Qf8 Rg6 Qg7 Nc3 Kd2 Ne4+ Ke3 Bd8 Rf6 Rf5 Rf8 Rh5 Kf4 Rh3 Qf7 Qh1 Qg7 g2 Rf1 g1B Rf3 Bd4 Rg3 Bc3 Rf7 Bca5 Rf8 Rgh6 Kf5 Qg2 Rf7 R6h5+ Kg6 Rf5 Rf6 Rf1 Rf8 Rg1 Rff3 Rh4 Bf5 Rg4+ Ng5 Rf1 Rf2 Bac7 Ndb4 Ba4 Be6 Ba5 Rf6 Qf8 Kh5 Rf3 Rf7 Re3 Rff3 Ra3 Nbd3 Bab3 Bf5 Qg8 Ne6 Rg6 Bg4 Qh8+
2KNB2q/p3P2r/3n1Pb1/1n1Qn3/1k1NBnnN/1qr3B1/3bBR2/2R1bq2 w - - 0 1 illegal: No proof kernel
rn2r1R1/2B1Nbbn/Q1BPkbq1/3b2b1/1PB2pN1/1R6/3bKN2/B4br1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 f5 d4 a5 d5 h5 g5 h3 d6 a4 b6 h2 g6 c3 e5 h4 g7 a3 b7 a2 Ba3 h3 Bb5+ Ke6 Ba6 c2 Bb5 c1B Qd3 f3 Bb2 c4 Kd1 c3 Nd2 f2 Nc4 f1B Rb1 a1B Ne3 Qf6 Ng4 c2+ Ke1 Bg5 Bc4+ Kd7 Bc3 c1B Rb3 f4 Qe2 Qg6 e6+ Kc6 e7 Kd7 Kd1 Nf6 g8N Bd2 Qd3 Bg7 e8B+ Kd8 Ne7 Be6 Bd4 Nh7 Bc6 Re8 Qe2 Bf7 Bc3 Bb2 Bd4 Bbc1 Ba1 Bdc3 Qa2 B1d2 Qa6 Bcf6 Ba4 Nc6 b8B Kd7 Bab5 Bh8 Bc7 Bhg7 Bd3 Ke6 Be2 Nb8 Bc6 Bg2 Bd3 Bd5 Ke2 Bc4 Nf2 Bd5 Nf3 Bc4 Rd1 h1B Ne5 h2 Rg1 Bhd5 Neg4 h1R Rg2 Bb5 Bc4 Rg1 Rh2 Nf8 Rh8 Nh7 Rg8 Ba4 Rf3 Bc2 Rh3 Be4 Ra3 Bg2 Rb3 Bf1+
nB1N4/R1Qn4/Kb2Bq1N/B1N2qb1/p5RP/3rqnr1/1qBP4/k3rb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 e4 Kd7 Ke2 Kd6 b4 g5 h4 f5 e5+ Kd5 b6 a5 b5 c5 b7 f3+ Ke3 c3 Kd3 a4 e6 f2 e7 c2 e8B c4+ Kc3 g3 b6 f4 Ne2 f3 Ba3 c1Q+ Qc2 g4 Be7 g2 Kb4 g1N Kb5 c3 Bc5 g3 Ra2 g2 Qh7 c2 Nd4 Be7 Bg6 Qb2+ Nb3 c1Q Rh2 Nd7 b8N Qcc3 b7 Nb6 Bgd3 Nf6 Qg7 Rg8 Ba3 Nfd7 Nc6 Bg5 b8B Qdf6 Bc2 Qe3 Nd8 Ba6+ Ka5 Ra7 Nc5 Na8 Bc4+ Kd4 Ra1 f1Q Be6 f2 Nc3 Nf3 Nd1 g1B Rb1 Qh3 Bb4 f1R Re2 Re1 Rg2 Qf5 Nf2 Rc7 Ng4 Bf1 Nh6 Rc6 Qh8 Rd6 Qh7 Rd5 Qf7 Kc4 Ka6 Bf2 Ba5 Rg7 Ne4 Bg1 Rg4 Rg6 Bd3+ Kb3 Nc5+ Ka2 Rc1 Rg7 Rcc4 Rd4 Bc2 Rd3 Rb4+ Ka1 Rb7 Bh2 Ra7 Bc7 Qe7 Bb6 Qd6 Bf4 Qc7 Rg5 Rg1 Rg3 Rg2 Bg5 Rg1 Rh3 Rg4 Rg3
1rBbq3/nn1n2B1/4nBNK/b2bPkr1/PR1Qq3/5qr1/1Rp5/3N1B1N w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 f5+ Kh5 c5 a4 b5 g4 b3 d4 b2 e4 c3 g6 b4 e5 c4 g7 c2 g5 b3 g6 c3 Ba6 f3 Ne2 f4 d5+ Kf5 d6 f2 d7 f1Q Ra2 f3 Rh3 f2 Rh2 Bb7 Ra3 Nh6 g8B Bb4 g7 Ba5 Qe1 Qe8+ Bf7 Rg8 d8B Nd7 Be7 Bd5 Qd1 Rb8 Nd2 b1R Ng1 b2 Qe2 Qh3+ Bh4 f1N Qc4 Ne3 Re2 Ng2 Re4 Qf3+ Rg4 Bd8 Bf6 Nf4+ Kh4 Ne6 Kh5 Ra1 Ne4 b1N Be3 c1B Ra2 c2 Nf2 Bd2 Bc8 Nc3 Qd4 Nb5 Ne2 Na7 Rb2 B2a5 Nc3 Rg1 Nh1 Rg3 Nd1 Qe4 Kh4 Qf3 Bh5 Nf7 Bh6 Nd6 Re4 Qa3 Be2 Nb7 Bf1 Qf3 Rg4 Rf8 g8N Qe4 Bg7 h5 Qe3 Qf3 Rgb4 Rf7 Bf8 Rfg7 Qd4 R7g5 Nh6+ Kg6 Nf7 Kf5 Nh8 Rg2 Ng6 Qe4+ Kh3 h4 Bh6 R2g3+ Kh2 h3 Nhf2 Rd3 Bf8 Rh5 B8g7 Rd2 Kg3 h2 Bc4 h1Q Bd3 Qf1 Nh1 Rhh2 Bc4 Rhg2+ Kh3 Qfe2 Bb5 Q4f3+ Kh4 Rg5 Bc4 Qee3 Ba6 Rdg2 Bf1 R5g4+ Kh5 Qee4 Kh6 Rg5 Nc3 R2g4 Nd1 Rg3
1KB3NN/4bB2/q4q1P/P2pB2r/k1n1R3/1nq1rR1b/2r1Q1Nn/1b2N1q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 d5 a4 Kd7 c4 Kc6 h4 b5 f4 g5 c5 g3 a5 b3 f6 b2 f7 g2 f5 e4+ Kc2 d3+ Kc3 g4 Kd4 g3 Ke5 e3 f6 e2 h5 e1R+ Be2 b4 Na3 b1Q Bb2 b3 Nc4 Kb5 c6 d2 c7 Be7 f8N Na6 f7 Qc2 Nh7 Bh3 f8N Rc8 Ng6 Nf6 Ra4 Nc5 Nf3 g1Q Ne3+ Qd3 Re4 g2 Qc2 d1N Bc3 Qf2 Rf1 g1Q Ng2 Ne3 Bd1 b2 Qe2 b1B h6 Rf8 Ba1 Nb3 Nh8 Nfg4+ Ke6 Rg8 Nf6 Rg5 Ng8 Qg3 Be5 Rh5 Rf2 Qf8 Kd7 Nc4 Bc2 Ka4 Kc6 Rd8 Kb7 Nh2 c8B Qf6 Kb8 Re8 Rf1 Rc1 Nfe1 Qgg6 Rf5 Qc3 Rf3 Qa6 Rd4 Qgf6 Bg6 Rc2 Re4 Rf8 Rfe3 Rf7 Rf3 Rg7 Bf7 Rg3 Rf5 Rd3 Rf3 Re3
1Qq1rk2/4NB2/R2NP1R1/6p1/1qPKrbn1/1bnBB3/4q3/nb2qBRr w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 b5 Kd3 g5 a4 f5 e4 d5 h4 f4 a5 f3 a6 g3 h5 f2 h6 b3 e6 b2 e7 b4 a7 g2 c3 b3 h7 Be6 e5 Nd7 Rh4 Ngf6 Be2 f1Q Rh3 Nc5+ Kd2 d3 Ke3 d2 Qc2 d1Q Rh1 Qde1 Nd2 b1Q Nh3 b2 Nc4 Nb3 Ra6 d4+ Kd3 Rc8 a8B Rc5 Be4 g1R Be3 Ng4 Nf4 Qc8 Nd5 Na1 Bf5 Qff2 Bf1 Qfe2+ Ke4 d3 Qb3 d2+ Kd4 d1N Qb8 Kf7 e8B+ Kg7 Bfg6 Bd6 Bef7 Re8 Bd3 Kf8 Ne7 Bd5 e6 Bf4 Nd6 Ba2 c4 Re5 Rh2 Rh1 Rg2 Qb4 Rg3 Nc3 Rg1 Qbe1 h8R+ Kg7 Ne4 b1B Rh6 Kf8 Nd6 Bb3 Rg6 Re4+
n3kq2/R1q1r2R/1NN1Pr1p/5K1n/n1q2B2/1r2b2B/bbQPB1B1/3b2R1 w - - 0 1 illegal: No possible last move, all moves rejected
N1N1n2b/1Kqr1BP1/1n6/krP1B2p/1qR1BrRb/1Qn1N3/2b5/3q2Nq w - - 0 1 illegal: No possible last move, all moves rejected
1R1bBk1n/PrBR3Q/1r2rKBb/1Bq1Pn1b/1q4Rn/1N6/5p1q/N4r2 w - - 0 1 illegal: No possible last move, all moves rejected
Qr4q1/P1nn4/Bb1RqR2/3p4/R2b2N1/r5r1/nBRNb1P1/1qBk1b1K w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 Kf7 f4 Kf6 Kf2 d5 a4 b5 c5 h5 a5 e5 c6 b3 a6 b2 c7 d3 Qc2 d2 Ne2 d1B Kg1 b4 Ra3 h3 Qd2 e4 Ra2 h2+ Kf2 h4 Na3 b1N Ng3 b3 Qe3 b2 Bd3 h3 Qc5 e3+ Kf1 e2+ Kf2 e1B+ Kf1 Nc3 Bb5 b1Q Qb4 Bg7 Qa5 Bf2 Nc2 Bb6 Ra4 Na2 Ne3 Nd7 a7 Ba6 c8R Rb8 Rc2 Be2+ Kf2 Qe8 Nf1 Qe6 Nd2 Rh7 Rf1 h1Q Qb4 h2 Qf8+ Qf7 Qc8 Rh3 Qb7 Qe6 Qa8 Rg3 Bd3 Ke7 f6+ Kd6 f7 Bgd4 f8R Ngf6 f5 Ke5 Rd8 Ne8 f6 Kf4 f7 Nc7 f8B Qg8 Bfa3 Bb5 Rc6 Ba6 Bc4 Qe4 Bcb2 Qee6 Rc1 Bb5 Rc2 Qb1 Bc1 h1R Bab2 Rhh3 Kg1 Rf3 Bd3 Rhg3 Kh1 Ba6 Ng4 Bf1 Bh7 Bae2 Bd3 Re3 Ba6 Ra3 Nf6 Ke3 Rd6 Qgg4 Rf8 Qgg8 Rf7 Kf2 Ng4+ Ke1 Rf6 Kd1
N2B2N1/Pp1B1n1q/1b1k1rN1/1P5n/1q2bn1r/4Q2N/1q1r1Kn1/2bBR1R1 w - - 0 1 illegal: No possible last move, all moves rejected
3B1b1R/r1r1Q1R1/2k1N1R1/2NnPb2/1p2q2n/rn1B4/bPb2R2/1bKN2b1 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 cxd5 Na6 Ra4 Nb4 a6 Nxa6 Ra5 Nb4 Ra1 Na2 d4 Kd7 Kd2 h5 g4 f5 e4 b5 g5 c5 g6 a5 g7 a4 e5 a3 d6 f3 d5 b4 Ne2 c4 Nec3 h3 Be2 f2 Bg4 f1R Be2 h2 Na4 h4 Bg4 h3 Qc2 c3+ Ke2 Ne7 g8N Ra7 Bg5 Rf3 Kd1 Ng6 Bh6 Nh4 Rf1 h1B Bh5 h2 Bg4 Rh7 Bh5 f4 Bg6 Qc7 Bd3 Qc4 Qd2 Qe4 Bg5 Rg7 Qe3 c2+ Kd2 Rh3 Ne7 f3 Rf2 Nc3 Nc6 a2 Bd8 c1B+ Kc2 Rh7 Qc5 Be3 Nd4 Bg2 Ne6 h1B Ba5 Bd4 Kc1 Bf1 Bd8 Be3+ Rd2 Bg1 Rf2 Rc7 Qa7 Be2 Qc5 Bd1 Qa7 Bc2 Qb7 Nd1 Nbc3 Ne3 Nd1 Bg2 Rb1 a1N Qa7 Rg3 Qb7 Bh3 Qa7 Bf5 Nac5+ Ke8 Qb7 Rhe7 Qa7 Ba6 Qb7 Bc4 Qa7 Ba2 d7+ Kf7 d6 Nd5 Rh2 f2 Qb7 f1B Rf2 Ba4 Qa7 Nc2 Ra1 Nd4 Rb1 Bc2 Ra1 Bab3 Ra6 Ba2 Ng7 Nf4 Bc4+ Re6 Be7 Bab1 d8R Rb7 d7 Ra3 Rc8 Nd5 Rc7 Rc6 Bb5 Bc4 d8R Bca2 Bg5+ Be7 Rcd7 Rc8 Rg6 Rc6 Rh8 Rc8 Qa4 Ra7 Nge6 Rc6 Bd3 Rcc7 Rh5 Ke8 Rh8+ Bf8 Bd8 Ne3 Qa6 Nd5 Rdg7 Re7 Na4 Kd7 Qa5 Kc6 Qc5+ Kb7 Qd6 Rc7 Qe7 Kc6 Nac5 Nb3+
6kn/2B2nn1/BK1N3P/q4P1r/3r3N/BBn1bnN1/bbp2Q2/1r1n2RR w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 e5 d4 b5 a4 g5 h4 c5 f4 b3 a5 g3 f5 b4 h5 g4 d6 b2 a6 g2 d5 b3 d7 g3 a7 c4 d6 c3 Qd2 c2 Bd3 Nf6 Qc3 Nc6 Bd2 Qa5 d8N+ Kg8 d7 Ne7 Na3 b1R Ne6 b2 d8B Bg7 Nf8 Ne8 Bf1 Ng6 Rh4 Be6 Nh3 g1N Qc6 g2 Bc4 Nf3 Ba6 g1B+ Nf2 Ng5 Ra2 Nf7 Ra1 Ba2 Bc7 Rd8 a8B Rd4 Nb5 Rh6 Rh3 Ngh8 Rh1 Bf6 Bc3 Ng7 Bb4 Rh7 Qb6 Rh6 Ke2 e3 Ng6 e4 Bd5 Be5 Bb3 Rh7 Nd3 Bf2 Nc1 Rh6 Kf1 e2+ Kg2 e3 Kf3 Bg1 Nh4 e1N+ Ke2 Bf2 Ba3 Nd3 Nd6 Rh7 Kf3 e2 Rg1 e1N+ Ke2 Bfg3 Ke3 Nf3 Ne2 Nf2 Rh1 Bh2 Ng3 Bg1 Qa7 Rg4 Qc5 Nd1+ Kd3 Bed4 Kc4 Bge3 Kd5 Bc3 Kc6 Rd4 Kb7 Rc1 Qb6 b1N Rg1 Bb2 h6 Nbc3 Kc6 Rb1 Qa7 Rg4 Qd4 Rg5 Qd2 Rh5 Qf2 Ne8 Kb7 Rg7 Kc6 Rg4 Kb7 Rd4 Rh1 Qa4 Kb6 Ng7 Rf1 Rc1 Qe2 Nf2 Rh1 Rcd1 Rb1 Qa5+ Kb7 R1d3 Rbg1 Rd1 Qe1 Rc1 Qf1 Nfd1 Qf2 Rb1 Ka7 Qa4 Kb6 Qa5+
2B1bKb1/n2R1PR1/1q2bP1k/1b3r2/3N1rn1/1b1pB1rN/1R4Qn/b5NR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kg7 Kc4 b5+ Kd5 e5 g4 h5 f4 h3 c4 e4 a4 d3 f6+ Kh6 f7 h4 f5+ e3 c5 b3 a5 b4 c6 h2 a6 b2 a7 h3 c7 d2 Nc3 b1B Qb3 d1B Bd2 Bd3 Ra6+ Nf6+ Ke5 d5 Qb1 d4 Qc1 b3 Ra5 b2 Na4 b1B Rd5 Rg8 Nc3 Bg7 Rd7 Nc6+ Ke6 Ba2+ Nd5 Bdb3 Qb2 Bb5 Bd3 Rb8 a8R Na7 Bf1 Rb7 Rb8 d3 Kd6 Rf8 Nf4 e2 Be3 e1N Qg2 Nf3 g5+ Kh7 g6+ Kh6 Qe2 Ng4 Qg2 Ba1 Be2 Be6 Bf1 Bab3 Be2 Qf6 Bf1 Qd4+ Ke7 Qb6 Be2 Rg8 Bd1 Rg7 Kf8 Bec4 Re7 B8e6 c8N Be8 Rd7 Bb5 Ne7 Rc7 Nc6 Rc8 Nd4 Rc4 Rc8 Rb4 Rc2 Ra4 Rb2 Ra5 Nge2 Ra4 Rf1 h1R Ng1 Nfh2 Bf3 Rb4 Bb7 Rc4 Bc8 Rc5 Rfb1 Re5 Nge2 Rf1 f6 Rf5 Ng1 Rf3 Nh5+ R3f4 Rd1 Nf1 Rdb1 h2 Re1 h1B Rc1 Rh7 g7 Nfh2 g8R Rg7 Re1 Rgg5 Rg7 Rg6 Qg3 Be4 Qg2 Rgg5 Rc1 Rd5 Rf1 Bh7 Re1 Bg8 Rd1 Rf3 Nf4 Rdf5 Nfh3 Rg3 Ngf3 Rf4 Rh1 Re5 Nfg1 Rf5
1R2n1k1/1P3b2/n5Kb/3nR1n1/3R4/r2NnBNr/prbN3P/n1B1qQ1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 e4 Kf7 b4 d5 c4 a5 e5 g5 b6 d3 b7 f3 Kg3 f2 c5 d4 b5 d2 b6 a4 c6 d3 c7 f4+ Kg2 f3+ Kg3 a3 Be2 f1N+ Kf2 a2 Qa4 d1B Nh3 d2 Qf4+ Nf6 e6+ Kg8 e7 Ra3 e8R Na6 b8N Ne3 Kg3 Nc2 b7 f2+ Bd3 Be6 c8N Qa5 Rd8 Ne8 Bb2 f1R Rg1 Rf2 Re1 Rh4 Re4 Bh6 Nc6 Re2 Nf2 Rh3+ Kg2 g3 Kf3 Qc3 Nd6 Qb4 Nf5 g2+ Kg4 g1N Nh1 Nf3 Ne5 Qa5 Nc3 Qb4 Rb1 Na1 Red4 Bdb3 Bb5 d1N Ne4 Qe1 Bc1 Ba4 Rb3 Rb2 Re3 Bc2 Rc8 Nh4 Kh5 g4 Rb8 g3 Nd2 Ng2+ Kg6 Nc3 Be2 Nd5 Ree4 Nge3 Qf3 g2 Qf1 g1N Nfg3 Nf3 Nd3 Ng5 Re5 Rb6 Bh5 Rb2 Bf3 Bf7#
2r5/1p1bbKnR/PB3b1b/5N1n/2Q1b3/NB3PB1/bBNkr2R/2nq1r2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 g4 h3 a4 e3 g5 h4 g6 h2 d3 e2 a5 e1B a6 b3 d6 Kb4 d4 c5 d7 h3 Ke6 c4 g7 b2 d5 c3 d6 c2 Kf7 e5 Qg4+ e4 Na3 Kc3 Be2 b1B Qg2 e3 Ke6 Be7 Nf3 Ba2+ Bc4 e2 Rf1 h1B Rg1 h2 Qf1 Nh6 g8N Nf5 Nd4 Ng7+ Kf7 Bd2 Bb3 e1B Rg2 Bh6 Bb2+ Kd2 Qc4 c1N Ndc2 Bf6 Ne7 Re8 Nf5 Re2 Rg3 Bf3 Rh3 h1R Rh2 Be4 f3 Beh4 Rb1 Rf1 Ra1 Qa5 d8B Qa4 Bb6 Bd7 Bf2 Be7 Bg3 Bhf6 Rb1 Bdc6 Ra1 Nd7 Rb1 Rc8 Ra1 Nf8 d7 Ng6 d8B Nf4 Bb6 Bd7 Rb1 Ncd3 Rc1 Nfh5 Ra1 Rh1 Rf1 Nc1 Rff2 Re1 Rf1 Rd1 Rfh1 Rf1 Nce3 Nd3 Rf2 Nhf4 Bd1 Bhg5 Rh7 Bh6 Rg2 Qc2 Rh2 Qb1 Bb3 Nfh5 Nec2 Qd1 Ba1 Nc1 Bae5 Nd3 Bb2 Nc1
2NqR1b1/b4BB1/2k2bR1/B2r1P1B/R2r2NK/b2n1rp1/b2Q1rP1/2nr4 w - - 0 1 illegal: No possible last move, all moves rejected
2bnK3/1r2r1rB/3q3p/bB1QRNPP/1r2N3/1b3R2/1k1rB2n/1bN1bB2 w - - 0 1 legal: proof: e4 a5 d4 f5 f4 fxe4 b4 axb4 f5 c5 dxc5 g5 Bf4 gxf4 Kd2 Kf7 h4 Kf6 c4 Ke5 g4 Kd4 a4 e5 c6 d5 c7 b5 a5 f3 c5 f2 f6 b3 g5 b2 h5 b4 f7 b3 c6 h6 a6 Ra7 Rh3 Rb7 a7 Qd6 a8B Nf6 Qg4 Rh7 Qf3 e3+ Ke2 e4 Nd2 Kc3 Ra5 d4 Re5 b1B Qh1 b2 Rf3 Bg7 f8N Ng4 Ng6 Nh2 Nh4 Bf6 Qg2 Rg7 Nf5 Bd8 Qh1 Rb4 Bb7 Bc2 Ba6 b1B Bb5 Bb3 Qg2 Kb2 Qh1 Bd7 c8B Ba5 c7 Nc6 Bca6 Nd8 c8B Bde6 Bcb7 Bc8 Bd5 Rb7 Bg8 Rg7 Bh7 Rb7 Bh3 f1R Bg2 Rd1 Bf1 Rc1 Nh3 Rg7 Nf2 Rcc7 Qg2 Rb7 Nd3+ Kc3 Nc1 d3+ Ke1 e2 Kf2 e1R Kg3 Kb2 Kf4 e3+ Ne4+ d2 Bbe2 d1R Bab5 Qd4 Bed3+ e2 Re6 Bc4 Qf2 Qe3+ Ke5 Rgc7 Kd6 Ka1 Nf6 Qd2 Qc5 Kb2 Qc6 Rg7 Qd7 Nf7+ Ke7 Bb3 Ke8 Nd8 Qc6 Qf4 Qd5 Qd6 Bdc4 Rd4 Bd3 Rd1 Ree3 e1B Bde2 R1d2 Re7 Rdc4 Ne4 Rcc7 Re5 Rce7+
qBRNn1b1/7Q/knn2bP1/3rPn1r/1pb1n1b1/b1NN4/B4B2/1K1R2B1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 h5 Kc2 b5 a4 c5 g4 Kc7 e4 Kb7 e5 f5 g5 f3 g6 c4 d6 c3 a5 f2 d7 h3 d5 h4 d6 h2 Qg4 f4 Qg5 h3 Qh6 f3 Qf4 b3+ Kd1 c2+ Kd2 b2 Qg3 b4 Qg2 Nf6 Bd3 f1B Ne2 Ne8 Nf4 Rh5 Bc4 Bg7 Ba2 Nc6 Nc3 b1B Nd3 f2 a6+ Ka7 Qg4 Bf6 Qh4 Kb6 a7 Ka6 Rg1 h1N Rg4 h2 Rc4 Qa5 d8B Bg4 d7 Ng3 Bb6 h1N d8B Nf5 Bdc7 Rd8 a8N Rd5 Bb8 Nhg3 Bb2 Qa3 Kc1 Ne4 Bc5 Bfe2 Qh1 f1N Bf2 Nfd2 Nc7+ Ka5 Ne6 Ka6 Rc5 Nc4 Nd8 Nb6 Qh4 Na7 Rc8 Nc6 Ne1 Bc4 Nd3 Bh8 Qe7 Bf6 Qh7 Qa4 Ne2 Qa5 Bbd4 Qa4 Nc3 Qa5 Bb3 Ba2 Bg1 Qa4 Bdf2 Qa5 Kb2 c1B+ Kc2 Ba3 Re1 Rd6 Rd1 Bg8 Be6 Bc4 Kb1 Rd5 Bd7 Na7 Ba4 Nc6 Bb3 Qc5 Ba2 Qe7 Re1 Qb7 Rd1 Qa8
r2Bn3/1b3q2/1P1P1b2/1KrB2rB/1NNB2rk/1Nr5/Qn1pRR2/1bb1b3 w - - 0 1 illegal: No proof kernel
1BN1N3/P2B2np/5n1k/1Kn1rb1n/2b3rP/Q1Bbq1n1/1BbRNb2/3R4 w - - 0 1 illegal: No possible last move, all moves rejected
1rk3br/2nb1r1b/2QB2R1/qN2nb2/1q3N2/4R2P/1BK1BNpP/4Nbb1 w - - 0 1 legal: proof: d4 a5 e4 c5 b4 axb4 e5 cxd4 e6 h5 Nf3 h4 Ng1 h3 gxh3 fxe6 Bd3 e5 Bf1 e4 Kd2 g5 f4 e5 c4 d5 a4 Kd7 a5 b5 a6 b3 f5 g4 c5 g3 f6 b4 a7 d3 f7 g2 Qe2 b2 Qf2 b3 Ra4 e3+ Kd1 d4 Be2 e4 Ra5 d2 Rb5 Na6 Bd3 Nc7 Qh4 Nf6 Bc2 Rb8 a8N Ng4 Nf3 Ne5 Na3 b1B Ra5 b2 Rf1 Ba2 Ra4 b1B Ne1 Ba6 c6+ Kc8 Bb3 Bc5 Rf6 Bf1 f8B Bbd3 Bc2 Bg8 Bb2 Bb5 Bb3 e2+ Kc2 e3 Qe4 Ba7 Bd6 d1B+ Kb1 d3 Bc4 d2 Rg6 Bb3 Qf3 Ba2+ Kc2 Bh7 Rb4 Ba4+ Rb3 Qg5 Nb5 d1B+ Kc1 Bc2 Nb6+ Kd8 Ra3 Bf5 Nd5 Kc8 Nf4 Bc5 Bd3 Bag8 Rb3 Qh5 Kc2 Qg4 Nh5 Qb4 Nf4 Ne6 c7 Bd4 Nc3 Bd7 Qc6 Bb6 Ne4 Qa5 Nf3 e1Q Nf2 Qeb4 Ne1 e2 Ra3 Bg4 Bb5 Bc5 Re3 Bd4 Nf3 e1R Be2 Rd1 Ne1 Rd3 Re4 Rf3 Re3 Bb6 Nh5 Rf7 Nf4 Ba7 Qc3 Kb7 c8N Nc7 Qc4 Bc5 Na7 Bb6 Nb5 Kc8 Qe6 Bf5+ Ne4 Ne8 Qc4+ Bc6 Ra3 Bf2 Re3 Nc7 Qc5 Be8 Qc3 Bg1 Qc6 Nd3 Nf2 Ne5+ Kc1 Bed7 Kd1 Bfe6 Kc2 Bf5+
q1N2Rn1/1BrQ1R2/2q4b/B2B1P1P/rb4Kb/4q1nN/2p4k/bb1R2bB w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 h4 Kf6 d4 Kf5 f4 e5 a4 b5 h5 g5 a6 c5 a5 g3 d5 Kg4 a7 g2 a6 Kg3 d6 g4 d7 c3 Qd5 b4 Ra4 b3 Qe6 e3 Ra2 e4 Qb6 b2 Qb5 c4 Rh2 c2 Qd5 c3 Qb3 Nc6 Ra3 Nce7 Qa2 Nf5 Bd2 c1B Rh1 Bb4 Rh4 Rh7 Nh3 g1B Be1+ Kh2 Bg2 g3 Bh1 g2 Nd2 b1Q Qe6 Qc2 Ra1 Qa4 Nc4 Qc6 Nb6 Ng3+ Kd1 Qf8 d8R Rc7 Qd7 Bf2 Rg4 g1B Rg7 Bb2 Rc1 Ba1 Rf7 Bb7 f5 e2+ Kc2 e3 Kd3 c2 Rd1 Bc8 Bc3 e1Q Bd5 Bb7 Nc8 e2 Re8 Be3 Bd2 Be7 Ba5 Bh6 Rd8 Bb4 Bh1 Qe7 Rdf8 Qd8 Bd5 Qf2 Bh1 e1B Bd5 Nf1 Ke4 Qd2 Kf3 Qe3+ Kg4 Bh4 Bf3 Ng3 Bh1 Rb8 a8B Qde8 a7 Ba6 Bg2 Bc4 Be4 Ba2 Bb7 Bb1 a8B Qd8 Bd5 Qde8 Ba6 Rbb7 Bh1 Ra7 B8b7 Ra8 Bc4 Qd8 Bcd5 Ra6 Bb6 Ra4 Ba5 Qde8 Ne7 Qb8 Nc8 Qa8
bQnk1BB1/3n1b2/n3r3/4P2R/NB2q1P1/3p3K/2N2bNb/1q1RbbrB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kf2 a5 e4 d5 c4 f5 b4 h5 g4 f3 Kg3 d3 g6 h4+ Kh3 f2 g7 a3 c5 a2 c6 a4 b5 d2 b6 a3 c7 f4 b7 f3 Rh2 d4 Qc2 d1Q Bc4 f1B+ Qg2 d3 Be3 f2 Bh6 Nd7 b8B Ne7 g8B Ra6 Bc1 Re6 Rh1 Qe2 Kh2 h3 Kg3 h2 Be3 Bh6 Kh3 Bf4+ Bh7 Qe1 Nd2 Qb1 e5 Ba6 Kh4 Nc8+ Kh3 Qg5 Bb5 Qf5 Ngf3 Qe4 Ba4 Bc4 Nb3 Rf8 Ne1 Rff6 Rg1 h1B Bd2 Bh2 Bg8 Ke7 Bc6 Rf3+ Kh4 Rg3 Nd4 Ke8 Qh3 Bf3 Rh1 Rg1 Ng2 Bd5 Ba4 Ba8 Bb4 Bd1 Nc6 Bb3 Nd4 Qf4 Qe3 Nd6 c8N Qb2 Bf7+ Kd8 Ne7 Nc8 Ne2 Rb6 Re1 a1B Bc5 a2 Bb4 Qb1 Nf5 Bc3 Bg8 a1B Bc6 Bf7 Rd1 Be1 Nc3 Be2 Na4 Bd4 B8d6 Qf3 Qe4 Bf4 Bf8 Bc5 Bd5 Re6 Nfe3 Bd4 Rh3 Bh2 Nf4 Ba7 Nc2 f1N+ Kg5 Ne3 Rh5 Bf1 Bc6 Bc3 Kh4 Nd5 Qe3 Qg2 Qb6+ Nc7 Qb8 Na6 Be4 Qe2 Bh1 Qe4 Ng2 Be1+ Kh3 Baf2
NBNRbQq1/5rn1/rr4n1/p6n/P1r5/q2PBb1K/1r2B1Rr/2N1kN2 w - - 0 1 illegal: No possible last move, all moves rejected
R4nr1/q1B1n1rq/1RK1N2P/p1n3Q1/BqP5/qN1bqB2/RB3bq1/7k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 c4 g5 b4 f5 e4 a5 e5 d3 b6 f3 b7 g3 e6 d2 b5 f4 e7 g2 e8B g4 h3 Kg3 b6 f2 h4 f3 h5 Qh4 Qe1 d1Q+ Bd3 Qd2 Qd1 f1N Bg6 f2 Qa4 Bc5 Be8 Rh7 Ba3 Ne7+ Ke4 d5+ Ke5 d4 Nc3 Rg7 Nf3 g1Q Na2 Kg2 Rh3 g3 Beg6 Qb4 Bde4 d3 Be8 d2 Bb2 d1Q Nc1 Qdb3 Ra2 Nd2 Qb5 Q3a3 Nb3 f1Q Ng5+ Qf3 Rh1 Bf5 Ne6 Qe3 Rb1 Kh2 Bc6 g2 h6 g1Q Bd7 Qfg2 Be8 Qhf2 Bc6 Qd3 Bf3 Ne4 Bd7 Kh1 Be8 Na6 b8B Nf6 b7 Nh7 Bc7 Nf8 b8R Qdc2 Bd7 Bd3 Bdc6 Ba7 Qc5 Qe3+ Kd6 Bf1 Rb6 Qh7 Ba4 Bd3 Rb8 Nfg6 Rb6 Rag8 Rb8 Nf8 Ra8 Nc8+ Kc6 Bb6 Qg5 Nc5 Rf1 Ba7 Bd5 Bb6 Rf6 Qgf2 Rg6 Qf7 Bf3 Qe7 Bd8 Qa7 Bc7 Ne7+ Kd6 Ncd7+ Nec5 Qed2 Rf6 Nf5+ Kd5 Qc1 Rd6 Qf4 Ne6 Bf2 Rc6 Nc5 Rb6 Qe3 Kc6 Ne7+
8/b2k1B1N/2R2RP1/BNrNb3/rp4n1/1nRr1P2/2rQ1r1q/2n1nbRK w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 h5 a4 c5 d4 e5 a5 b5 f3 e3 g5 h3 d6 e4 a6 h2 g6 h4 a7 h3 d5 b3 Ra4 b2 Qe2 b4 Qc2 c4 Ne2 c3 Nd4 e2 Kf2 e1B+ Ke3 Ba6 Ra1 Nc6 Ne6 Bf2+ Kf4 e3 Rg1 h1R Na3 b1R Qd2 e2 Nb5 e1N Ng5 h2 Bc4 c2 Ra3 Rb2 Rc3 Rh5 Nh7 Nf6 d7+ Ke7 Bb3 Na5 Rc6 Bd4 Kg3 Ng4 Ba2 Qc8 d8R Qb8+ Rdd6 Bfg7 Bc4 Qh8 Rf6 Kd7 d6 Nb3 Bf7 Rc5 Kh3 Rd8 a8N Ra2 Kg3 Ra4 Nac7 Be3 Bb2 c1N Be5 Rc2 Nd5 Ba7 Rc3 Rc8 Bd4 Rc4 Bb6 Rc5 Ba5 Qb8 Rg2 Rf1 Rg1 Rf2 Kh3 Kc6 d7+ Qd6 Rf4 Be5 d8R h1R+ Kg3 Qb8 Rc8+ Kd7 Rc6 Rhh2 Nbc7 Bf1 Nb5 Rhg2+ Kh3 Re2 Rf5 Re3 Rff6 Rd3 Qf4 Rgd2+ Kg3 Nf2 Kh2 Ng4+ Kh1 Rf2 Qe3 Qf8 Qf4 Qh6+ Qh2 Qf4 Qh6 Qg3 Qd2 Qh2#
1n1r4/1Kn1RBnR/Q1n1B1pN/1brN4/n2q1rP1/1k2N2P/1B1b4/2b1b1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Qd3 cxd4 Qc3 h4 Qg3 hxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 b4+ Kc4 b6 a5 e3+ d3 b5 f5+ Ke5 d5 c3 d4 h3 g6 e4 a4 b7 a3 b6 a2 Bb2 f3 Be2 f2 Bd1 f1N Bc2 f4 Bd1 d2 Rh2 d3 Re2 g2 Re3 f3 Bb3+ Kb5 c4+ Kb4 c5 d1N c6 d2 c7 f2 Na3 Nc3 Be6 d1N Rc1 a1B Nc4 Bd7 c8N Nb5 Kd5 Ra5 e5 Ng3 Ne7 f1R Nf5 Nh5 Nh6 Rf4 Re4 Qf6 Ne3+ Kb3 Rc7 Be8 Rh7 Ng7 Bc3 Bb4 Bb2 Nc6 b8N Be1 Nd7 Nb8 b7 Bd2 Bc1 Nb2 Nb6 Na4 Ba3 Bac3 Bb2 Nd7 b8Q Nc7+ Kc6+ Rd5 Rc4 Rc5+ Kb7 Ne7 Nbd5 Nc6 Qa8 Ndb8 Qa6 Bc1 Re4 Be1 Bf5 Rg8 e6 Qd4 e7 Bd7 Re5 Rd8 e8B Bed2 Bf7 Be8 Ne2 g1B Re7 Bf2 Ng1 Bfe1 Bc8 Ne5 Bf5 Bb5 B5e6 Nec6
1Q4r1/3R1nq1/1r2bpPk/NKnbB1b1/5q1b/N2N4/R2rBPb1/2N1bB2 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 a5 c4 e5 d4 h5 g4 e3 Kd3 h3 d5 e4+ Kd4 a4 b6 a3 d6 e2 Kc5 e1B b7 h4 g5 h2 g6 e3 Nc3 b3 Be2 h3 Bf1 a2 Qd5 b2 Nb5 b1R Qc6+ Nd7+ Kd4 e2 b8N Qc7 c5 Be7 Kc4 Kf8 Qb7 Kg7 c6 Nc5 d7 Bd2 d8N e1B Na3 Nh6 Nd7 Rg8 Qb8 Bh4 Ne5 Rb6 Nb7 Bdg5 Bf4 f6 Ne2 Nf7 Rd1 a1Q Na5 Kh6 Nd3 Qae5 Nec1 Qa7 Rg1 h1B c7 h2 Bg3 Bd7 c8B Bg2 Ba6 h1B Bh2 Qe3 Be5 Bg4 Bb5 Bf5 Rd2 Be6+ Kb4 Bgd5 Rg4 Qe7 Rd4 Bhg2 Be2 Qf4 Bf1 Bde4 Rd7 Qf8 Be2 Qg7 Bf1 Raa6 Be2 Rd6 Bc4 Rd4 Kb5 B4d5 Ra2 Rc6 Nb4 Rd1 Bf1 Ra6 Bce2 Rd2 Nbd3 Rb6+
1bRbB1N1/3n2qK/1Q2P2N/nbr3BP/2n1n1R1/n4k1r/1nR3qp/3R3N w - - 0 1 illegal: No proof kernel
2b5/1Nn1RR2/qP1rR1qn/2P3bk/2p1r1rB/Nn2nN1K/3nBN2/4Q1n1 w - - 0 1 illegal: No possible last move, all moves rejected
qq3q1K/1N1b1RQ1/p3R3/3n1r2/1qB1rR1b/R1B1Pn2/q1P3Nk/qN2b3 w - - 0 1 illegal: No possible last move, all moves rejected
4N1q1/nq2R2P/1kb1q2P/1pr2Kn1/r1rRNbr1/4RrNB/R5rB/1Q6 w - - 0 1 illegal: No possible last move
1b1R1Rn1/b1NrPBBR/2PN1p2/nb1N2r1/1r4R1/K2r2r1/7q/1kn3nQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 g4 Ke5 c4 Ke4 Kc2 a5 Kb2 d5 e3 h5 b6 f3 c5 f6 b5 a4 b7 f2 b6 a3+ Ka2 d3 g5 h3 g6 h2 g7 d4 Qe1 d2 Kb3 d1R Bb2 a2 Bg2+ Kd3 e4 f1R e5 h4 e6 h3 Nf3 Rg1 Qh4 Ra4 Qg3 Bd7 Qh4 Rh5 Nbd2 Qc7 Rb1 a1B Qe1 Bb5 Ba3 Rb4+ Ka2 Kc2 Ne4 d3 Nfg5 d2 Nd6 Bd4 Bd5 Nc6 b8R Na5 b7 Rg3 c6 Ba7 Rd8 Be7 Nge4 Rhg5 b8N Bf8 Rg1 h1N Nc3 h2 Na6 Nf2 e7 h1N Bf7 Nh3 Bc1 N1f2 Nd5 Nd3 Ka3 Qb8 Rh1 Ng1 Rh7 Qc7 Rb3 Bb8 Rc3+ Kb1 Rc4 Ba7 Rg4 Qb8 Bb2 Qc7 Bd4 Nc1+ Be3 Qb8 Ne4 Qf4 Nac7 Qf2 Qf1 Qh2 Qg2 Rf1 Qh3 d1R Nd6 Rff3 Qg2 Ncb3 Bd2 Rd3 Qh1 Nc1+ Bc3 Nh6 g8R Bg7 Rgf8 Ng8 Na8 Bh6 Nac7 Rg7 Rc8 Bf4 Rcd8 Ncb3 Bd2 Be5 Bh6 Rg5 Ne4 R1d2 Bg7 Rd1 Na8 Beb8 Nac7 R1d2 Nf4 Rd7 Nfd5 Rdd3 Nd6 Nc1+
1qn1qNR1/2K1P1P1/QR2pbR1/B3rb2/2b1R1q1/1b3r1n/2NB2b1/bB3k2 w - - 0 1 illegal: No proof kernel
kq3b2/nb1bpBP1/1q2b3/P1B5/r3BN2/3nqNr1/2Q1bBbR/K4R1R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 g4 d5 c4 Kd7 Kc2 Kc6 Kb2 Kb7 f4 h5 a4 h3 g5 b3 f6 b4 f7 d3 c5 h2 g6 h4 f5 h3 f6 d4 Be3 d2 Qh5 d1Q Ra3 d3 Qf3+ Nc6 Bg2 d2 Bg5 Bd7 Qg4 Qb6 Bh4 Nh6 Qe2 Ng4 Nc3 Qe1 Be4 d1B Ra2 Rg8 Bf2 Ne5 Nd5 Na7 Ka1 Nd3 Qc2 Qe3 Nf3 Be2 c6+ Kb8 c7+ Kb7 Rf1 h1B c8B+ Kb8 Bb7 h2 Nf4 Bg2 Bbd5 h1B Rb1 Bgh3 Rab2 B1g2 Rh1 Bhe6 Ra2 Rh8 Rb2 Rh3 Bc4 Rg3 Ra2 Bg7 f8B Bh6 f7 b2+ Kb1 Qd8 Bg7 Qdb6 Bd4 Bf8 Bf5 Kb7 Bc5 Kb8 Ra1 Kb7 Rh2 Kb8 Ka2 Kb7 Rf1 b1B+ Ka1 b3 Rfh1 Kb8 Qc3 Bc2 Be4 Bcd1 Qc2 b2+ Kb1 Nc1 Bcd5 Ba6 Ba2 Nd3 Bc4 Be2 Ka2 Bh6 f8R+ Bac8 Rf7 Bf8 g7 Bb7 Rf6 Bg8 Bf7 b1Q+ Ka3 Q1b4+ Ka2 Q4b5 Ka1 Qb3 Bfg6 Bge6 Bf7 Bbc6 Be1 Qd8 Nh3 Bb7 Nd4 Nc6 Rff1 Qbb6 Nf4 Ra5 Bf2 Ka8 Nf3 Na7 Qc3 Qb8 Qc2 Rb5 a5 Rb4 Ng1 Rd4 Nf3 Ra4+
r2q3k/q1NpN1RN/4rK2/B1P3R1/r3Bb2/n3q3/n2P1Rbq/2qR1qQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 f5 Kf3 Kf7 e4 Kg7 c4 h5 g4 a5 e5 a4 e6 b3 g5 h3 e7 a3 e8R b2 Nc3 b1Q b6 h4 b7 h2 c5 a2 g6 h3 Bb2 Qe4+ Kf2 f3 Kg3 f4+ Kg4 f2 Re6 f3+ Kg3 Rh4 Re5 Ne7 Be2 f1R Qb1 f2 Rh5 Nec6 Bg4 Na6 b8N Ne5 Nc6 Bb7 Bf3 Nb4 Nb5 Bd6 Bc3 Re1 Nc7 Kg8 g7 Nc4+ Re5 Kh7 g8R Re3 Rg6 Kh8 Qf1 Rf4 Rc1 a1Q Rg7 Qa7 Ne7 Na2 Ba5 Na3 Re1 Qd3 Re2 Ra4 Qc1 Be4 Kh4 Qd4 Rf5 Bf4 Bg2 Bc6 Nf3 Re5 Ng5 Qe3 Nh7 Bb7 Rhe1 h1Q Kh5 h2 Kg6 Qg1 Kf6 h1Q Rfg5 Qhh2 Rf1 Qc3 Qd1 Qc1 Ree1 Bd5 Qg4 Be4 Rd1 Bb7 Bc6 Qgg3 Bd5 Qe3 Qg1 Bc6 Bc4 Bg2 Bd5 Qh4 Be4 Qh2 Rfe1 f1Q Re2 Bf3 Rf2 Bh1 Rg3 Bg2 R3g5 Re6+
Q4bb1/1Rp3KP/r1qR4/1b1b2B1/bqbn1P1R/1r4r1/1nB1k2N/N2R3B w - - 0 1 illegal: No proof kernel
6bB/1P2b2B/4qNbK/4r2n/Bpn1R3/1R1b2b1/1q1N2qP/krN1b1BQ w - - 0 1 illegal: No proof kernel
2R3rN/QPBqk3/P6r/1BRp2qb/4rrq1/3r2N1/5bBn/1Brn2KR w - - 0 1 illegal: No proof kernel
8/qpq2q2/3n1P1B/4nqB1/qbN1bPQK/Nn1B1R2/5r1q/R1BNk1r1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 c5 f5 exf5 d6 Ke2 dxc5 Ke1 c4 f4 Kd7 Kf2 Kc6 Kg3 Kd5 h4 Kd4 a4 c5 a5 g5 a6 e5 h5 b3 a7 e4 d3 e3 h6 c3 f6 b2 h7 c4 Nh3 c2 Ra5 e2 Rf5 e1Q+ Nf2 c3 Na3 b1Q Re5 Qa5 Qf3 Bf5 Qe2 Ne7 Rh6 Nd7 Rc5 Nc8 Qf3 Qe6 Rg6 Qf7 Rh6 Ne5 Qd1 Qa4 Bb2 Ke3 d4 c1N d5 c2 d6 Be4 d7 Nd6 d8B Nb3 Ra5 c1Q Qf3+ Kd2 Bd3 Ke1 Rh3 Qcc7 Be7 Rg8 h8B Rd8 a8N Rc8 Kg2 g3 Nd1 g4 Nb6 Rg5 Bg7 Rg6 Kg1 g2 Kh2 Rg5 Kg3 g1Q+ Kh4 g3 Bh6 g2 Nbc4 Qa7 Rg3 g1Q Bc1 Qg2 Rh3 Rg3 Qg4 Rf3 Bg5 Rf2 Rf3 Re8 Bd8 Be7 Ra6 Rg8 Ra5 Nb5 Ra6 Bb4 Be7 Nd6 Bf8 Qc2 Bf1 Qd3 Bfh6 Qdd5 Be2 Qde6 Bf1 Qf5 Bd3 Rf8 Nb5 Qa3 Qg3 Rg8 Qh3 Qg1 Qg2 Qb2 Ra1 Qba2 Qh3 Q2a4 Nba3 Qf1 Bg7 Rh8+ Kg3 Rh7 Qg4 Rh1 Bf8 Rg1+ Kh4 Qg2 Bfh6 Qh2+
1rq2bQ1/P2bnb2/6Rn/P3Bp1b/NKBB2bk/1N4Nn/3rR3/3q2bN w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 a6 Ke7 Kd2 Rh7 a4 Kf6 h4 b5 c4 g5 e4 d5 a7 d3 Kc3 g3 h5 d2 a5 f3 h6 g2 c5 d4+ Kb3 f2 c6 b4 c7 d3 Nh3 g1N Ra2 g4 Rc2 g3 Qg4 d1B Be3 g2 Nd2 Bd7 c8N Nc6 Nb6 Qc8 Na4 Rb8 Qg3 Rg7 h7 Bh5 h8B Nh6 e5+ Kf5 Kc4 b3 e6 b2 e7 b1Q Nb3 d2 e8N d1B Nf6 Ne7+ Bc5 Bdf3 Ne4 Qd1 Be2 f1B Nhf2 Rg8 Be5 Nh3 Rg1 Rg6 Nh1 Rd6 Qg7 f6 Qh8 Kg4 Qg8+ Kh4 Kc3 Bf7 Bc4 f5 Rf2 Rd2 Bcd4 Rb2 Rc2 B1e2 Rd2 B3h5 Rc2 Bef3 Re2 Bb5 Kb4 Ra2 Rf1 Rd2 Rff2 g1B Rg2 Ra8 Rg7 Rb8 Rg6 Bfg4 Neg3 Bd7+
N6n/2NNBN2/b3K3/QnR1b3/Rbr1rqBq/4pR1n/bn3P1P/2k2n2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 b4 Kg6 c4 Kf5 c5 d5 b6 g5 b5 a5 c6 e5 b7 e3 Kd3 e4+ Ke2 g3 b6 g4 c7 d3+ Ke1 a4 Be2 a3 Nh3 d4 Ng1 a2 Na3 d2+ Kf1 d3 Kg2 Rh4 Nb5 Ra4 Ba3 Ne7 Qf1 d1N Nc3 d2 Nd5 Na6 b8R Nb2 b7 d1B Bd6 Rc4 Qe1 Ng6 Nf6 Nh8 Bb4 Bb3 Rd1 a1B Ba5 Ba2 Bb6 Bb4 Ne8 Kf4 Bf3 e2 Rc1 e3 Bc5 Qg5 Qd2 e1Q Be7 Qe5 Bd1 Ke4 Nf3 Qf4 Ne5 Qe2 Nf7 Qd3 Bf6 Qd8 Be7 Qd4 Qe1 Kd3 Rg1 Qdf6 Ra8 Re4 b8N Bb7 c8N Nc7 Rf1 Nb5 Nc7 Ba6 Rc5 Rc4 Be2+ Kc2 Nb6 Q6d4 Bd1+ Kc1 Rg1 Qdf6 N8d7 Q6d4 Kf1 g2+ Ke2 g3 Rf8 Rg4 Nba8 Qdf6 Rh1 Qh4 Rg1 Qe5 Kf3 Re4 Qf1 Qd4 Qd3 Qd6 Qa3 Qe5 Re1 Qd6 Qa5 g1N+ Kg2 Nh3 Kf3 g2 Re2 Bc3 Rd2 Bb4 Rd4 Qh7 Be2 Qdh6 Kg3 g1N Bg4 Ne2+ Kf3 Re6 Re4 Ng3 Rf4 Nf1 Rd4 Rg6 Ke4 Qf4+ Kd5 Rg5+ Ke6 Qh4 Rd3 Rd5 Ra3 Rd4 Ra4 Re4+ Nfe5 Qfg5 Rf3 Qf4 Kd5 Nd3 Nf7 Be5 Ke6 Nb2
2BK2b1/q3qR2/1R1N1n1B/1b2k3/Nbq4p/Rq2bB1P/rP6/1RQr2qn w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxg4 a4 c6 d5 cxd5 axb5 dxe4 Qd4 e3 Qd3 Ba6 Qd1 Bc8 Ke2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 h5 c4 g5 f4 e5 h3 h4 f5 e2 c5 e1Q b6 g3 b7 a4 c6 g4 c7 g2 Nc3 a3 Bb5 a2 Rh2 e4 Nge2 g1Q Ba6 e3 Qa4 g3 Qf4 g2 Bc4 Qd1+ Bd2 Bb4 Qf2 Qb3 Na4 Qe7 Nb6 Nh6 Na4 Rd8 Qg3 Ng4 Rh1 Nf2 Nd4 e2 Nc6 e1Q Na5 Qc1 Rb1 a1Q Bh6 d6 Qe3 Bd7 c8B Bb5 Qe1 Nd7 b8R Qaa2 Qf1 Qce3 Qc1 Qa7 Rh2 Nh1 Rb6 Ba6 Kc6 d5 Ra1 d4 Bd5 d3 Nb7 d2 Kc7+ Ke5 f6 d1B f7 Bb5 f8R Bc2 Rf1 Bh7 Bf3 Bg8 Rd1 Nf6+ Rd7 Qg7 Rf7 Rd1 Rb1 Bd6+ Kd8 Bb4+ Nd6 Qc4 Bd5 Qab3 Ra1 Qgc5 Bc6 g1B Ra3 Be3 Bf3 Qg1 Rd2 Qb7 Rd3 Ra5 Ra1 Qa7 Rb1 Ra6 Nc3 Ra2 Na4 Qbc2 Ra3 Q4b3 Bfg4 Q2c4 Bf3 Kd4 Ne4 Qe5 Nd6 Qee6 Rbb7 Ke5 Rb6 Qee7+
q2nQ3/K1B3Rq/R4nq1/n1k3NP/1N1b1p1r/NP4Rq/n1N5/3b1Brn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 a5 c4 f5 e5+ Kc5 e6 d5 e7 g5 e8R f3 b6 g3+ Ke1 d3 Kd2 f4 Kc3 g2 b7 d2 Re3 f2 Be2 f1Q Reh3 g4 Rg3 d4+ Kd3 a4 Nf3 g1Q Rg2 a3 Qb3 d1N Rh3 a2 Qa4 g3 Bd2 Qh1 Na3 Bg4 Ne1 Nc3 Qe8 Nc6 b8N Bg7 Nec2 Nf6 Be3 Qb1 Bf1 Bd1 Rg1 g2 Rg3 Qh3 Na6+ Kd6 Nb4 Kc5 Bd2 Ra7 Be3 Qa8 Bf2 Nd8 h5 Rg8 Be3 Bh8 Bf2 Rg4 Be3 Rag7 Bf2 Kb6 Be1 Rh4 c5+ Ka5 Kc4 d3 c6 Kb6 c7 d2 Nd4 Qh7 Ndc2 Bf3 Kd4 d1N Kc4 Nf2 c8N+ Kb7 Kc5 Nh1 Bd2 Bd1 Nd6+ Ka7 Ne4 Rgg4 Rb1 a1N Ng5 Na2 Bc3 Kb7 Be5 Nb3+ Kb5 Na5 b3 Ka7 Ra1 Kb7 Bd4 Kc7 Ba7 Kd6 Ka6 Qd5 Bb8+ Kc5 Bc7 Bg7 Ka7 Qc6 Bb5 Bh8 Re1 g1Q Re7 Qce4 Be2 Qeg6 Bf1 Qgg2 Rg7 Qc6 Re3 Rg1 Rg3 Ng4 Rd7 Bd4 Rg7 Nf6 Nb1 Nc3 Ra4 Na2 Nba3 Nc4 Ra6 Na5 Qe5+ Qd5 Qe8 Qa8+
N4BR1/b1Rb4/k1n3nq/1bn1NqPB/n1B2PKn/2B5/Q1p2N1r/3r3b w - - 0 1 illegal: No possible last move, all moves rejected
1Bn5/1Q3N1n/2b1b1B1/1NR1pnbn/3nr2N/2Nk1Pr1/B1RPbq2/K3q3 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 b4 Kd7 g4 Ke6 b6 Kd5 g5 Kd4 b7 a5 g6 h5 b5 c5 g7 e5 b6 a4 Ba3 e3 Be2 h3 Bf1 h4 Qe2 c3 Kd1 c2+ Kc1 h2 Kb2 c1N Qb5 h3 Qe8 c4 Ra2 c3+ Ka1 c2 Bg2 e2 Bc6 e1Q Bc5+ Kd3 Nf3 a3 Bd7 Nc6 b8N Ra4 b7 Na7 Be3 Qh4 Bg5 Nf6 g8B Nh7 Rb2 a2 Bf6 Re4 Rg1 h1B Na6 h2 b8N Ne2 Qd8 c1N Qe7 Nd4 Bg7 Nce2 Be8 Nf5 Qb7 Nf4 Bg6 Be6 Nc7 Nh5 Nc6 Nc8 Nd8 Be7 Bf8 Bg5 Nb5 Qf4 B8f7 Rg8 Nh4 Bf3 Rc2 h1B Bd6 Bd1 Bb8 Qg3 N1c3 Qge3 Kb2 a1N Kb1 Rg7 Bg8 Qf3 Nf7 Nb3 Rf1 Nbd4 Ka1 Qg3 Rg1 Re3 Rf1 Bc6 f3 Qg2 Rg1 Qgf2 Rg4 Ne2 Rc4 Nd4 Rc5 Re4 Nfd6 Bed7 Bd5 Be6 Ba2 Be7 Bf7 Rg3 Bg6 Bg5 Nf7 Be2+
3rr1b1/1r1RBn2/2nb4/qP1R2B1/3R3n/P1nBnN2/1RN1QK1p/2k2r1q w - - 0 1 illegal: No proof kernel
B1bqq1Br/3b2q1/5Q2/1P1bqPq1/N4kB1/b2nRp2/r2NKB2/4Rn1N w - - 0 1 illegal: No possible last move, all moves rejected
N3nB1k/1B2n1N1/3Bbb1K/1p3Nq1/nrP5/1Pq2R2/Rq2n1B1/1q2rQn1 w - - 0 1 legal: proof: e4 g5 d4 f5 exf5 a5 h4 gxh4 d5 a4 b3 a3 d6 cxd6 Qd3 d5 Qc3 d4 Qb2 axb2 Kd2 Kf7 f4 Kg7 a4 h5 c4 d5 g4 e5 g5 b5 g6 h3 a5 e4 a6 h4 a7 d3 Ke3 d2 Ra3 d1Q Bg2 h2 Bh3 d4+ Kf2 d3 Ke3 d2 Ra6 Qe1+ Ne2 Nd7 Na3 b1Q Ra5 Be7 Rf1 h1Q Nc2 Qh2 Ba3 Bf6 Bd6 Ne7 Ra2 Re8 Rf3 Kh8 Bg2 h3 Nd4 Qeg3 Ne6 d1N+ Kd2 Nc3 Ke3 Na4 N2d4 Qg5 Ng7 Qhg3 Nde6 h2 Nd4 Rb8 a8N h1N Ba3 Qh2 Bc5 Qa5 Bd6 Be5 f6 Ng3 f7 Nf6 f8B Be6 Ndf5 Ne2 Nh4 Rb6 Nhf5 Ra6 Nh5 Ra7 g7+ Kh7 g8B+ Kh8 Nhg7 Qc3+ Kf2 Nfd5 Bh7 Nc7 Bg6 Bf6 Bh5 Qcb2 Ke3 Qhg3 Bf7 Nac3 Bh5 Ra4 Bg6 Rb4 Bf7 Bc8 Bd5 Na4 Bb7 Be6 Nh4 Qg6 f5 Q6g5+ Bf4 Bc3 f6 Qge1 f7 Bf6 Nhf5 Qec3+ Kf2 Bd5 Bd6 Be6 Rd3 e3+ Kf3 Nc1 Ke4 e2 Kf3 e1N+ Ke4 Qg6 Kf4 Nf3 Re3 Ng1 Rf3 Qh6+ Kg4 Qf4+ Kh5 Qg4+ Kh6 Nce2 Be5 Rd8 Bg3 Rd1 Bd6 Re1 Bc5 Ned5 Bfd6 Ne8 f8Q+ Bg8 Qf7 Qg3 Bf8 Ne7 Bd6 Qg4 Qh5 Be6 Qh1 Nh3 Qf1 Nhg1 Nh5 Qg3 Nhg7 Qg5#
2k1q1BN/1rb3RB/n2b1bP1/4RK2/1n1b2R1/BPN2p1R/rq1n2n1/Qb6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 g4 c5 d4 h5 e4 a5 g5 c3 b3 a4 d5 h3 b6 h4 b7 a3 e5 a2 d6 c4 g6 c2 Bg2 c3 Rh2 Ne7 Bf1 Nec6 Qe1 Rh7 Bb5 Qe8 Qf1 Na6 Bb2 c1B b8R c2 Bc3 Be3 Be1 c1B Ba5 Bd4 Be2 Ncb4 Rb5 Bb7+ Rd5 Kc8 e6 Re7 Rg2 h2 Nh3 h1N Nc3 Ng3 Ng5 h3 Bc4 h2 Nf7 h1Q Nh8 Ne4 Re5 Qh2 Rg4 Qb2 Bb6 Bd5 Bc5 Rb7 e7 Bd2 Re1 a1B Re3 Be1 Qh1 Bg3 Qe1 Bc6 Bg8 Bh2 Bh7 Nd2+ Kf2 f3 d7+ Kb8 Qd1 f4 d8R+ Kc7 Qh1 Be4 Rd7+ Kc8 Bd6 Bb1 Qe1 Qf7 e8B Be7 Bc5 Bd6 Qc1 Qg8 Bf7 Qe8 Bfg8 Raa7 Rg7 Bc7 Ke1 f2+ Ke2 f1N Rh3 Ne3 Kf2 f3 Qf1 Bg1+ Kg3 Bh2+ Kh4 Ng2+ Kg5 Nb8 Kf6 Ra2 Qc1 N8a6 Qh1 Nd3 Ba3 Bf4 Kf5 Ndb4+ Re4 Bfd6 Qe1 Nd3 Re5 Ndb4+ Rge4 Bg1 Re6 Bd3 Nd5 Qc2 Qb1 Bc3 Qa1 Bf6 Nc3 Qb2 Ree7 Bb1 Re5 Nc2 Rf4 Bd4 Rg4 Ncb4+
2N1N1n1/1BN2KBn/1qn2PPR/2Qr3N/rnn4r/1Rp2R1b/1q3b2/3k3r w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 h5 f4 c5 d4 a5 b6 e3 b7 c3 b3 c2 g5 a4 f5 c4 f6 a3 d5 e2 g6 e1N d6 c3 d7 a2 Ke6 h3 Bg2 h4 Ne2 h2 Rg1 h1R Qd5 h3 Nd2 h2 Be4 Nc6 b8N Ra4 Bg2 Qb6 Ne4 Nf3 Nf4 Nd2 Kf7 e5 d8N Nc4 Nd7 Bc5 Nh5 Bf2 Bh6 c1Q Rf1 Qb2 Nd6 e4 Bg7 e3 Ne6 e2 Ne8 e1N N6c7 Nf3 Qb5+ Ka3 b4 Kb3 Qc5 Kc2 b5 Kd2 Rae1 a1N Re4 Rg1 Rh4 h1R Rh2 Nc2 Rh3 Qb8 b6 N2b4 b7 Qa7 b8R Qb6 Nf4 Rh4 Nh5 Ne1 Rh2 Kd1 Bd5 Rg5 Be4 N6a5 Bb7 Nac6 Rh3 Rd5 Rf3 Qa6 Nb6 Bh3 Nc8 Qa5 Rg1 Qb6 Rg5 Nec2 Rg2 N2d4 Rh2 Ne6 Ra8 Ra1 Ra3 Nf8 Rb3 Nh7 Bf8 Bg4 Bg7 Ra4 Nf4 Bd7 Rhh3 Rg4 Rh6 Rgh4 Nh5 Bh3
qk4NQ/n1N4q/1N1bPrR1/1B2pb1r/2brr3/K1brPnNB/R7/2B5 w - - 0 1 illegal: No possible last move, all moves rejected
qR1Q3B/n3r2B/1q2p3/1bn2nPn/q2BnkP1/2rq2b1/NRR1B1K1/1N6 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 c4 Kf7 a4 Kg6 f4 Kf5 Kf2 b5 a5 h5 a6 d5 g3 e6 a7 h4 c5 d3 c6 h3 c7 b3 Qe2 b2 Ra3 h2 Rb3 b4 Qd2 e3+ Kg2 e2 Nf3 e1N+ Kf2 d4 Be2 Bd7 c8B Ne7 Rc3 b3 Kf1 Bb5 Ng1 Rh7 Bh5 Nbc6 Qd1 d2+ Ne2 d3 Bb7 Rc8 a8R Na7 Na3 b1Q Rc2 b2 Bhf3 Rc3 Rb8 Qa5 Rg1 h1N Rg2 Bg7 Ba6 Be5 Be4+ Kg4 Bg6 Nf5 Kg1 Rb7 Bh7 Re7 Kf1 Kf3 g4 Nhg3+ Kg1 Qa1 Nb1 Nh5 Rh2 Q1a4 Kf1 Nh4 f5 Bg3 f6 Nf5 f7 Qd8 f8B Ke4 Nd4 Kf4 Nc6 Qd5 Nb4 Qa8 Na3 b1Q Bg7 Qb2 Na2 Qbb3 Bb2 Qbb4 Qe2 d1Q Nb1 d2 Bh8 Nd3+ Qe1 Qd6 Rf2+ Qdf3 Qd1 Qb6 Ba1 Nc5+ Kg1 Bd7 Be2 Bb5 Rg2 Qd3 Rh2 Nd6 Bb2 Nde4 Kg2 Ra3 Bbd4 Rc3 Qg1 d1N Qe1 Rc4 Qa5 Rc3 Rb2 Qa6 Qd8 Ne3+ Kh1 Nf5 Kg2 Qac2 Rh1 Qd6 Rc1 Qa4 Rcc2 Qb6
1N2K1B1/8/2q1pBn1/b3PBR1/1r1nB1Pn/n1qrr2Q/4bRn1/R4rkN w - - 0 1 legal: proof: d4 c5 b4 cxd4 f3 a5 Ba3 axb4 Bb2 Nf6 Bc1 Ng8 Nh3 g5 Ng1 g4 g3 h5 fxg4 h4 Bb2 hxg3 Ba3 Qa5 Bc1 Qd8 Kd2 f5 Kd3 Kf7 Kc4 Kf6 Kd5 b5 c4 b3 h4 g2 a4 d3 e4 d2 a5 b4 c5 f4 c6 f3 h5 Kg5 c7 Kf4 e5 Kg3 h6 Kf2 a6 b2 a7 b3 h7 e6+ Ke4 d5+ Kd4 Qd6 Rh6 Ba6 c8B Ne7 Nc3 b1Q Bd3 b2 Rh5 Qc2 Nge2 b1N Rg5 g1N Bd7 Ng6 Ba3 Qb2 Qa4 d1N Qb4 Ne3 Bf5 Bd3 Ng3 Be2 Qc5 Qc7 Qa5 Bb4 Be8 Kg2 Qc5 f2 Nh1 f1R Bf7 Rd8 h8R Rd6 Rh6 Rb6 Qe7 Qc2 Na4 Be1 Nc3 Nc6+ Kc5 d4 Bg8 d3 Qh7 Nf3 Rh2+ Kg1 Qh3 d2 Rf2 d1R Bb4 Qd2 Nb5 Ng2 Nd4 Nfh4 Ba3 Rab8 a8B Rb3 Bb7 Qb6+ Kd6 Re3 Kd7 Qd3 Ba8 Ba5 Be7 Na3 Bf6 Qc3 Bb7 Rdd3 Ba8 Nd8 Ke8 Qa6 Bc6 Rb4 Bce4 Qb5+ Nc6 Qa6 Nb8 Nc6 Re1 Nd4 Ra1 Qac6+
3nN1Nb/1Kb2b2/PR1Br1b1/2RBQN2/q3n1p1/1R1qP1rb/2r3k1/1r3R2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Ke5 d4+ Ke4 a5 b5 d6 c5 e3 g5 a6 f5 d7 f3 d5 c4 h5 c3 h6 b3 h7 b2 d6 b4 Nh3 b3 Bc4 f4 Qe2 g3+ Ke1 g4 Ra2 c2 Kd2 f2 Kc3 f1Q Kb4 g2 Kb5 g1R Na3 b1R Qh2 Kf3 Nf2 b2 Ne4 Nc6 Ng3 Qe8 Kb6 Nf6 d8R Be6 d7 Bd6 Rb8 Bf7 d8N Bc7+ Kb7 Qd3 Bd5+ Ne4 Nf5 Rg3 Nb5 Qd7 Nbd6 Re8 h8R Re6 Bd2 c1B Bb4 Bd2 Ra1 Bc3 Rh5 Bh8 Ra3 Qe8 Rb3 Qd7 Qh4 Kg2 Ne8 f3 Qe7 f2 Bd6 f1B Rg5 Rc1 Qf6 b1B Qe5 Rc2 Rgh5 Nb4 Rg5 Qa4 Nc6 Ra7+ Kc8 Rb7 Nce7 Nc6 Ng8 Kf3 Rg1 Bh3 Rf1+ Kg2 Rh5 Bg6 Rg5 Ba2 Rh5 Rb5 Rb6 Rb4 Kb7 Rb5 Rc3 Rb1 Rcb3 Rcc1 Bc4 Qc3 Qd5 Qf6 R3b4 Re7 Nfg7 Rc2 Qe6 Qd4 Rc5 Qd5 Nf5 Qd3 Qe5 Bb3 Bb5 Bc4 Rb3 Bcf7 Bc4 Re6 Bd5 Nd8+
3Kq1b1/brNB4/P3BP2/1NBpQ2R/k1q2Nb1/3B4/4r3/nb1rnRbr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 h5 Kd3 b5 Ke4 e5 Kd5 d3 g4 h3 c4 b3 f4 b2 a4 h2 f6 b4 a5 d2 f5 e4 c5 e3 g5 b3 a6 e2 g6 e1B c6 h4 g7 h3 c7 Bc5 Ra3 Ra7 Qg4 d1R+ Bd3 Rb7 Nd2 b1Q Be2 b2 Re3+ Ne7+ Ke5 Qd3 g8B b1B Bd5 Ba7 Kd6 Bf2 Bf1 Qc4 Qf4 Nc6 Be6 Ne5 Ne2 Nd5 Ba3 Nb4 Rf3 Ned3 Qe5 Bg1 Nf4 Nc2 Nb3 Na1 Bc5 Ne1+ Bd3 Rg8 Nd4 Rg2 Nb5 Ra2 Qe3 Re2 Rf1 Qe7+ Ke5 d5 Qe4 Bd7 c8B Kd8 f7 Qe8 Nd6 Kc7 Kf6 Kc6 f8N Ng2 Nb5 Ne1 Bg8 Be6 Qe5 Bf7 N8e6 Rd7 Be7 Rb7 Nec7 Kb6 Ba3 Ka5 Bc5 Ka4 Bd7 Be6 Bh7 Bf7 Bg6 Bg8 Bf7 Bf2 Bfe6 Be3 Rhg1 h1B Rg5 h2 Rh5 Be4 Ba3 h1R Bc5 Qb8 Ke7 Bf3 f6 Bg1 Bc6 Qf8+ Kd7 Qf7+ Kd8 Bg4 Bcd7 Qe8+
1Nb3n1/4q2P/1q2rn1b/br4P1/n1bBBbQ1/2nR1R1N/1kpNB3/5BK1 w - - 0 1 illegal: No proof kernel
1q3N1R/rQ3P1N/1R4Bq/4nqb1/1pBBr3/BPr3kr/4nbN1/1r1q1K2 w - - 0 1 illegal: No possible last move, all moves rejected
q2n3Q/1kN1PrN1/r1nnRqNb/1B4BR/4n3/3Pp1B1/2B3r1/1nKbr3 w - - 0 1 illegal: No proof kernel
rB1q3Q/n3PN1p/1R3R2/3P3N/1brNR1bk/nqn1qB2/2Rq4/Kn1q4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Ke7 b4 Kf6 g4 Kg5 d4 a5 Kd2 f5 Kc2 c5 Kb2 a4 d5 c3+ Ka2 c2 b6 c4 b7 a3 b5 h3 b6 c3 e5 h2 e6 Bb4 e7 Nf6 Bh3 Ne4 Ne2 Nc6 b8R Na7 b7 Kh4 g5 f3 g6 f4 g7 f2 g8N f1Q Bg4 f3 Qd4 f2 Nd2 Qd1 Nb3 f1N Nh6 Nfd2 Nf4 Nb1 Rf1 h1Q Bf3 Bg4 Nf7 Qh3 Rc8 Rg8 Bd2 c1Q b8R c2 Qh8 Rg6 Rc5 Rc6 Nd4 Rc7 Be3 Qcd2 Nh5 c1Q+ Rc2 Rc4 Bf4 Qg3 Rb6 Nec3+ Kb3 a2 Bb8 Qe3 Re1 Qcd2 Kb2 Na3 Rb1 a1N Rf6 Nb3 Re2 Nc1 Ka1 N1a2 Rbc1 Qh3 Rb2 Ncb1 Rcc2 Nac3 Re1 Bd6 Rb6 Bb4 Re2 Ne4 Re1 Qb3 Re3 Nec3 Re4 Qg3 Bf4 Qgg1 Bb8 Qge3
4BNr1/1qRRP1pN/1R6/B1P1KN1N/3n1Q2/2rrr1b1/1n2bb1k/3r2bq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 e4 Ke5 h4 d5 b4 f5 c5 a5 h5 f3 Kg3 f4+ Kf2 g3+ Ke1 g2 Kd2 a4 Kd3 f2 h6 f3 h7 a3 b6 a2 b5 Nf6 b7 Qe7 b6 Nc6 b8R Ne8 b7 Bg4 Bg5 Ra3+ Nc3 Nd6 Ne2 g1B Qa4 Rg8 h8N Nc4 Bg2 f1Q Bd2 f2 Rd1 a1B Rh6 Qc7 Rc8 Bd6 b8N Qb7 Rc7 Qe1 Bf3 f1R Ng3 Bh5 Nf5 Nb2+ Kc2 Qh4 Ne2 Qh1 Ba5 d3+ Kd2 d4 Nf4 Bg4 Nh5 Rc3 Bg2 Be2 Ng6+ Ke6 e5 Rf3 Bf1 Kd5 e6 Ke4 e7 Bg3 Nf8 B1f2 Nf6+ Kf4 N6h7 Bg1 Nbd7 B3f2 Nh4 Kg3 Ndf6 Kh2 Nh5 Bg3 Bh3 B3f2 Bd7 Bg3 Nf5 B3f2 Qc2 Bg3 Kc1 d2+ Kb1 d3 Qa4 B1f2 Qf4 Nd4 Be8 Bg1 Rb6 Bf2 Rc1 d1R Ka2 d2 Kb1 Rf1 Rd1 Rfd3 Ka2 Nb3 Ka3 Nd4+ Kb4 Bg1 Rc1 d1R Rc2 Rff3 Rd2 Nc2+ Kb5 Qb8 Kc6 Nd4+ Kd6 Qb7 Ke5 Nb3 Rc2 Rd6 Rbc6 Na4 Ke4 Rc4+ Nd4 Bc3 Ne6 Nb2 Ke5 Be1 Rd2 Bef2 Nf5 Rcc3 Nef8 Rd4 Rh6 Rd8 Rdd6 Rd7 Rb6 R7d3 Rhd6 Nd4 Rdd7 Rfe3+
8/4pq1R/1RPqR1N1/2BBB2b/1r2r1b1/k4b1P/nN1nqR2/1KQ1qbb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 d5 c4 Kd7 Kc2 Kc6 a4 Kc5 f4 b5 h3 g5 f6 d3+ Kb2 b3 a5 Kb4 a6 d4 f5 g3 a7 g4 f7 g2 c5 d2 f6 g3 c6 d3 Qe1 Bh6 f8B Be3 f7 Nf6 Ne2 g1Q Nec3 d1Q Be2 g2 Nd2 Na6 Nf3 d2 Qh4+ Ne4 Rb1 Qf2 Rf1 g1Q Ra1 Qd6 Kb1 b2 Re1 Bg4 Bg7 Rab8 Qg5 Rh4 Bc4 Qde2 a8R d1B f8R Nd2+ Ka2 b1B+ Kb2 Be4 Ne5 Qf7 Rb1 Bef3 Ng6 Qgf1 Bf6 Bg1 Bd5 Bh5 Bh8 Re4 Na4 Qff2 Be5 Rb6 Rf1 Qfe1 Rf2 Rb7 Nc5 Rb8 Nd3+ Ka4 Rh8 b4 Rh6 b3 Rh7 Rb5 Rb8 Nb4 Rb6 Na2 Ka1 Bfg4 Nb2+ Ka3 Qf4 Rbb4 Qg5 Nf1 Be3 Nd2 Bc5 Qd3 Rf6 Bdf3 Re6 Qde2 Rc1 Q1f2 Rf1 Qfe1+ Nd1 Nc4 Kb1 b2 Rf2 Nd2+ Kc2 Nc3 Qh6 b1B+ Kc1 Ba2 Kc2 Bc4 Nb2 Na2 Qf4 Qe3 Qg5 Bf1 Qh6 Nc4 Qg5 Q1e2+ Kb1 Qc3 Qh6 Qce1+ Qc1 Nd2+
2N2B1K/2rP3R/2n1q2n/bpN2r1b/2qRrQ1B/3R3B/n1nnP2r/1k4B1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 h4 Kf6 d4 c5 a4 b5 d6 g5 d7 b3 a5 f3 Kg3 c4 a6 b2 d5 Ke5 d6 f5 h5 f4+ Kh2 c3 a7 g3+ Kh3 c2 Kg4 g2 h6 f2 Kh5 f3 Kg6 g4 h7 g3 Rh6 Qf6+ Kh5 Nc6 d8B Qe6 Na3 b1N Bdg5 Nd2 Qe1 Kd4 Nh3 Kc3 Nf4 g1Q Nd3 g2 Nc4 Qh1+ Bh4 g1R Bh3 f1N Qf2 Rg7 Ra4 Rc7 Qh2 f2 Qf4 Qhe4 Nc5 Ne3 Nb6 f1R Ba3 c1N Rd4 Kc2 d7 Na2 Kg5 Bb7 Nc8 Kb1 Bb4 Rb8 a8R Nc2 Ra3 Bd6 Rh5 Nh6 Rad3 Ra8 Ba3 Ra4 Bb4 Qc4 Kf6 Qee6+ Kg7 Be7 Ba3 Bd8 Bb4 Rf2 Ba3 Rf8 h8B Rf5 Kh7 Rh2 Be5 Nb8 Kh8 Bf3 Bd6 Nc6 Bf8 Rb7 Bb2 Ba5 Ba1 Rc7 Bb2 Ng8 Rh7 Nh6 Ba3 Bh5 Bc1 Nb3 Be3 Nd2 Bg1 Qb3 Rd5 Re4 R5d4 Qbc4
5nr1/1Bp2PRN/B4b2/2n1BbNb/bn1Rq1Q1/2P1b2K/2R3Rr/2n1k1q1 w - - 0 1 illegal: No possible last move, all moves rejected
2R2b2/3N1K1n/2r1N1q1/1bNqR3/q6B/rPQBn1Nr/p1P1r3/2bkbB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 d5+ Kd3 Ke5 e4 a5 h5 f5 b3 f3 b6 f2 h6 f4 h7 f3 b7 a4 Nd2 Kf4 e5 g3 e6 g2 e7 a3 e8B g4 Be2 f1Q Bb5 g3 Qe1 f2 Rh2 a2 Be8 Qh4 Bd7 Ne7 Rb1 Ra3 Bg4 Bd7 Bb2 Bb5+ Nc4 Nd7 b8N Nf6 Bh3 Nf5 Nf3 g1B Rc1 g2 Nc6 Ne3 Nb4 Qg5 Rd1 Qg6+ Bf5 Kg3 Na6 Kf4 Kd2 d3 Kc3 d2 Ng5 d4+ Kd3 Kg3 Nc5 Kf4 Ra1 d1Q+ Qd2 Qfe1 Nge4 f1R Ng3 Rf2 Bf1 Kf3 Rh5 Re2 Bc3 Rg8 h8N Bf2 Nf7 g1B Nd8 Nh7 Nde6 Rh8 Ba5 Bh2 Bd8 Bhg1 Bh4 Bh2 Nge4 Bf4 Ng3 B4h6 Bh3 Qh1 Bf1 Be1 Rg5 Qc1 Qc3 Kf2 Rb1 Qd5 Be4 Qb2 Rd1 Qc1 Rd2 Qd1 Re5 Qa8 Bf5 Qa4 Ke4 d3 Nf4 Qb1 Rd1 d2 Nfe6 Qb2 Kd4 Kf3 Bd3 Bg5 Ra1 d1R Rb1 Qc1 Ra1 Qd2 Rb1 Qa5 Nb6 Bgh6 Nbd7 Qa8 Re4 Qa4+ Ke5 Bg5 Rc4 Kf2 Qd4 Qda5 Qc3 Rdd2 Be4 Rd6 Bd3 Rc6 Rd1 Ng4+ Kd5 Bc1 Re4 Kf3 Re5 Qa6 Nb8 Rg2 Nd8 Qa8 Be7 Ng5 Bc4+ Kf2 Bce2 Rh3 Rd2 Nh7 Bh4 Qh5 Rd1 Rc7+ Ke6 Ne3 Rd6 Qb7 Nbd7 Rc8 Bd3 Qg6+ Nf6 Rgh2 Rb6 Qh1 Rb8 Rc7 Rc8 Rc6+ Kd7 Qhe4 Nde6 Qg2 Kd8 Qd5+ Nfd7 Bed2 Bde2 Ke1 Bc4 Re2 Bd3 Qh6 Ke8 Kd1 Kf7 Be1 Qb2 Qg5 Qc3 Qg6+
rRB3Rr/n4n2/Q2B1N1b/1K2bq2/Nb1r2N1/P1p1qN2/r1P3kb/6Bn w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 d4 Ke6 f4 Kd5 a3 e5 g5 c5 f5 b5 g6 h5 g7 e3 Kd3 e4+ Ke2 c4 f6 h4 f7 b3 Nh3 g1B Bd2 b2 Bc1 b4 Nd2 b1R Qe1 g2 Nb3 Rb2 Qd1 Qf6 Ng5 h3 Nh7 h2 Qd3 Ra2 Nc5 b3 Na4 b2 Ng5 b1R Nf3 Nh6 g8N Rb4 Rb1 Qf5 Bd2 c3 Qa6 Nc6 Bc1 Bc5 f8B Nf7 Bd6 Rc4 Rb7 Bb4 Rb8 Bf2 Rg1 h1N Bd2 Bg3 Be1 Bh2 Bf2 Be5 Nf6+ Ke6 Kd1 e2+ Ke1 Qg4 d5+ Kf5 Bd4 Kf4 Ba7 Kg3 Bd4 Kh3 Bb6 Ng3 Kf2 e1B+ Ke3 Rd4 Bb5 Na5 Bd7 Nc6 Bc8 Nh1 Ke2 e3 Bbc5 Rc4 Kd3 e2 Bb6 Rf4 Bd4 Qd7 Kc4 Qf5 Kb5 Bd2 B6c5 e1B d6 Bg3 Be3 Bd4 d7 Bh2 Bf2 Rg4 Bg3 Bh6 Bd6 Na5 d8N Rf4 Ra1 g1Q Nc6 Rh4 Nce5 Nc6 Re1 Rg4 Re4 Kg2 Ba7 Qf2 Bac5 Rf4 Neg4 Qg1 Re8 Be5 Be3 Rd4 Rg8 Qc1 Bf2 Qe3 Bg1 Na7+
q2Q3b/rN2R1q1/kB1N2q1/3b1K2/1P1q2R1/bn1P2Rp/RNb5/n3rn1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 g4 c5 b4 Kc7 g5 Kb6 e3 f5+ Ke5 c3 e4 c4 g6 a4 g7 h3 Qe2 f3 Rh2 c2 Nc3 a3 Rh1 a2 Qe1 f2 Qe3+ Qd4+ Kf4 h4 Bb2 c1B Nd1 h2 Qd3 h3 Be2 f1N Qc3 Nd7 Bf3 Ngf6 g8N Bg7 Ne7 Re8 Qd3 c3 Nc6 c2 Ne2 Ng4 Rg1 h1Q Rg3 Ra7 Nec3 Nc5 Na5 Nge3 Nb7 Be6 Kg5 f4 e5 Bg8 e6 Bh8 e7 Nb3 Ne4 Bd5 Ned6 Qg1 Bh1 f3 Bc3 Ba3 Nb2 c1Q Rg4 Nc2 Kf5 f2 Rg3 Rg8 e8R Qb1 Re7 Rg6 Rg4 Qg7 Be5 Re6 Bf4 Re1 Bh2 Qg3 Bg1 Qh4 Rg3 Qc4 Qd4+ Qc5 Qf6 Qd4 Qf8 Ra8 Qd8+ Ka7 b6+ Ka6 Rg4 Ra7 Rg3 Nh2 Rg4 f1B Be3 Bb5 d3 Ba4 Rg3 Qc1 Bg1 Qch6 Bf2 Re3 Rag1 a1Q Rg4 Re6 R1g3 Re1 Bf3 Ra8 Re8 Qc5 Bg2 Qc8+ Re6 Nc5 Be3 Nf1 Na5 Ra7 Nbc4 Bb2 Bh1 Qa8 Re7 Bc1 Bg1 Qac3 Bf2 Na1 Bg1 Bc2 b7 Ncb3 Bb6 Qcd4 Nf7 Kb5 b8R Qac6 Rc8 Bb1 Nfd6+ Ka6 Rcc7 Qa8 Nab7 Ba3 Re2 Qg1 Rce7 Q1d4 Ra2 Bc2 Nb2 Qhg6+
1n2B3/Bb5B/q1b2k1q/r4n1Q/pbNnrP1R/N3B2R/1r3rP1/1R1nK3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c4 Kf7 b4 e5 f4 h5 c5 a5 c6 d5 b6 a4 c7 h3 b7 e3 b5 e2 b6 d3 Kd2 e1N Qe2 e4 Qf2 h2 Qe3 d4 Qf2 h4 Nh3 e3+ Kd1 d2 Ba6 Qf6 Bf1 Ra5 Rg1 h1Q Bb5 Nf3 Rf1 Bb4 Ke2 d1N Na3 Nh6 Rb1 Nf5 Ng1 h3 Qh4 h2 Qh5+ Kg7 Re1 d3+ Kf1 d2 Be8 Bd7 c8B Bc6 Be6 Rf8 Bg8 N3d4 Bh7 Qh6 Re2 Kf6 Rf2 Rf7 Rf3 Re7 Rh3 Re4 Rh4 Nf2 Bg8 d1B Bh7 Bf3 Bd2 e2+ Ke1 Nd1 Rh3 Na6 b8R Qg6 Rc8 Nb8 Rh4 Bb7 Rc3 Qh6 Be3 Bc6 Kd2 e1R b7 Rf1 Beg6 Be7 Be8 Rf2+ Ke1 Bb4 Rg4 Be2 Rh4 Bf1 Nf3 Qg1 Bd7 h1R Be8 Rh3 Nd2 Ba6+ Nf1 Qh2 Nd2 Qg3 Ndc4 Qgg6 Qg4 Rhf3 Qh5 Rd2 Rcb3 Rff2 Rd3 Rb2+ Rc3 Nd7 b8B Bab7 Ba7 Nb8 Qe2 Bb5 Bd2 Qf7 Rf3 Qe6 Rfh3 Be7 Bc1 Qa6 Be3 B5c6 Qh5 Bb4+
1q1k4/3rnn1b/R2b3b/RB1pbQB1/1r2N1Rq/P1K5/P4qqN/1rB4B w - - 0 1 legal: proof: f4 a5 g4 c5 d4 cxd4 f5 h5 f6 hxg4 Bf4 a4 Bh6 a3 bxa3 exf6 Bd2 f5 Bc1 f4 Kd2 b5 h4 d5 e4 f5 c4 g5 c5 g3 e5 d3 c6 g2 c7 f3 e6 b4 e7 b3 h5 f2 h6 g4 h7 g3 Rh6 b2 Qc2 f4 Rf6 f3 Ra6 Nd7 Rh6 Ne5 Qd1 Ra4 Qe2 Nf7 Rh2 Bh6+ Kc3 d2 Qd3 d1Q Be2 f1Q Rh5 f2 Qf5 Qde1+ Nd2 b1R Ba6 Rab4 Nf3 g1B Be2 Qg2 Nh2 f1Q Bf3 Qff2 Rh3 Ba6 c8R Bd3 Rc5 Qb8 Ra5 Qe4 Rh5 Qh4 Ne4 Bc2 Rg5 Bd3 Rg4 Bc2 Nf1 Bh2 Rg6 Bd3 Re6 Kd7 e8B+ Kd8 Bb5 Ne7 Rea6 Rg8 h8B Rg7 Qh5 Rh7 Bf6 Rg7 Bfg5 Bc2 Nf6 Bh7 Ne4 Qgg1 Rg6 g2 Rga6 Bd6 Nh2 Qh1 Qg4 g1B Qh3 Qhg2 Qf5 Qgg4 Bh1 Qgg2 Bcf4 R1b2 Rd1 Rb1 Rd4 Be5 Nf1 Bh2 Bc1 Bhg3 Nh2 Rg6 Rc6 Rd6 Rca6 Rd7 Nd2 Bd6 Rg4 Bgf4 Ne4 Bfe5+
r2QN2K/bq5B/2RR2Nr/1RPb1r2/4Pp1B/2n1bn1N/k3b1n1/3rN1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 g4 d5+ Ke5 a5 c3 f5 e3+ d3 b6 a4 b7 f3 g5 d4 g6 a3 g7 a2 b5 h3 b6 h2 Bh3 h4 Qd2 Kb3 c4 f2 Bg4 f1R Qe2 h3 Nc3 d2 Nb1 d1R Qd2 d3 Na3 Qd7 Nc2 Ne7 Kf6 Ng6 g8N Bc5 Ne7 Nh4 Kg7 Rh6 Ne1 Nc6 b8R Ng2 b7 Ba7 c5 Nd4 e4 Nf3 Qa5 d2 Qd8 Qd5 Bh5 Be6 Ng6 Qc6 Rc8 Bd5 b8N Qb7+ Nd7 Rf2 Bb2 Rf1 Rb1 a1B Bf6+ Ka2 Rc6 Bd4 Rb5 Be3 Bh4 Rf2 Ne2 Rf1 Rg1 h1Q Nef4 h2 Nh3 Rf2 Rf1 Qg1 Bg4 h1B Bh5 Qb8 Nf6 Qc8 Ne8 Qb7+ Be7 Ra1 Rd6 d1N Rc6 Nc3 Bg4 f4 Bf5 Rd2 Rf2 Rd1 Re2 Rb2 Rd2 Rh5 Rd3 Rg5 Kh8 Rb3 Be6 Rf5 Bg8 Ra3 Bh7 Ra6 Rc7 Re6 Rc6 Ref6 Nh4 Rh6 Ng6 Ngh4 Bg5 Bg2 Bf6 Bf1 Be7 Ng2 Bh4 Be2 Rd4 Bf7 Rdd6 Bd5
Bk2b3/3rR1q1/q2r1nb1/pPK2b2/nQNB1BNb/1Nr4r/5PRq/1N6 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 g4 Kd7 c4 Kc7 b4 e5 c5 a5 c6 h5 g5 e3+ Kd3 e2 g6 e1R g7 h3 Rh2 e4+ Kc2 e3 Kb3 e2 Rg2 h4 Ka3 d3 Bh6 h2 Qb3 h1Q Be3 d2 Nc3 d1B Qb2 h3 Qc1 h2 Qd2 d4 Ra2 d3 Rc2 Rh3 Ka4 Ra6 Bc5 Qe7 Nb1 Bf5 Bd4 Nf6 g8N Qg7 Nh6 Be7 Nf3 Nbd7 b6+ Kb8 Kb5 Nc5 b7 Na4 Ng4 Bg6 Rc5 Bc2 Re5 Rc1 Kc4 e1Q b5 Be8 Qb4 d2 Bd3 d1R Be4 Qe3 Nfd2 Qeh6 Nb3 Qg1 Bd5 h1B Re4 Bd8 Re7 Qh2 Be4 Nh5 Bf3 Bf5+ Kd5 Rb6 Be4 Rcc3 c7+ Ka7 c8N+ Kb8 Nd6 Rbc6 Rd7 Bh4 Re7 Rc7 Nc4 Qa6 Rg3 Bf3 Rg2 Be2 Bf3 Bed3 Be4 Bfg6 Bf3 Bdf5 Be4 Nb2 Bf3 Rd7+ Kc5 Nf6 Bd5 Kc7 b8B+ Kc8 Bf4 Rdd3 Ne5 Kb8 Ba8 Rd6 Bde3 Rd7 Ng4+ R3d6 Bd4 Na4+
1k1n3N/1br1Br1R/1nb1r1P1/3B1Q2/nPKp3q/1r2q1N1/B4R1b/2BbN3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 f5 c4 a5 b4 h5 c5 h3 e5 h4 g5 a4 g6 f3 c6 f2 e6 a3 e7 h2 e8B h3 Bg5 f4 Be7 a2 Qc1 f3 Bh4 Ne7 Bd7 Rh7 Bf5 Ra6 Be6 Qe8 Bd7 Bb7 Qe1 Nc8 Bg5 Nb6 Nc3 Bd6 Bg2 f1R Qb1 f2 Qc2 Rb1 Nce2 f1R Ng3 Rff7 Nf3 Bf4 Rf1 h1Q Be7 h2 Rf2 Qe1 Be6 h1B Qc5 Rb2 Rb1 a1N Rd1 Qh8 Rdd2 Qc1 Ne1 Nb3 Rde2 Qf6 Re5 Qh4 Rh5 Rhg7 Rh7 Be5 Ne4 Bh2 Ng3 Rf6 Bg8 Rff7 Be4 Kc8 c7 Nc6 Bf3 Nd8 Bg2 Na4 b6 Na5 Be4 Nc4 Bf3 Kd7 c8N Bc6 b7 Kc7 Nd6 Ncb6 Qc2 Kb8 Be4 Rf8 Nf7 Rb3+ Qc3 Qcg5 Nh8 Rf6 Be6 Ra7 Bg8 Rgf7 Bf3 Re6 Bg2 Kc7 b8B+ Kc8 Bf4 Rc7 Bc1 Kb8 Kc2 Qgh6 Qf3 Qe3 Qf5 d3+ Kd1 d4 Bd5 d2 Kc2 Rb1 Ba2 Qf3 Bd5 d1B+ Kd2 Qff4+ Kd3 Bb7 Ba2 Bhc6 Bd5 Nc8 Ba2 Rb3+ Kc4 Qe3 Nh5 Rf8 Bf7 Rf6 Bd5 Re6 Ng3 Rff6 Rg7 Rf7 Rh7 Ncb6#
bK6/r6R/nNB3Pb/B5qP/4r1k1/RRq1RN1n/qrB2p2/rb1Q1q2 w - - 0 1 illegal: No proof kernel
NN4b1/rnr3nq/1R2RKp1/1qnBN2n/P6B/1P3br1/1b2BQ2/k4Bb1 w - - 0 1 illegal: No proof kernel
5R1K/1N1q1b2/2Q1Np1r/3BkP1n/B1B2r2/b2qq1Pr/Bq1b1R2/n1Rb4 w - - 0 1 legal: proof: d4 a5 c4 g5 b4 axb4 h4 d5 hxg5 dxc4 d5 e6 Bb2 e5 Bd4 exd4 Kd2 Ke7 f4 Kd6 e4 c5 a4 b5 g3 h5 f5 b3 g6 h4 a5 b4 g7 c3+ Kd3 b2 a6 c4+ Kc2 h3 a7 h2 Ne2 Na6 Nd2 d3+ Kb1 c2+ Ka2 c1B Nd4 c3 Kb3 b1Q+ Kc4 c2 Qf3 b3 Ra2 b2 Ne6 Nf6 Kd4 Nb4 g8B Qd7 Nb3 d2 Nbc5 d1B Bc4 Bd2 Rg1 Rb8 a8B h1R Rf1 c1Q e5+ Ke7 Ra1 Nh5 Nb7 Rh6 Rf2 Rh3 Qg2 Rg6 d6+ Ke8 Qc6 Nc2+ Kd5 Qa2 Rb1 Na1 Ke4 Qc3 Rc1 b1Q+ Bd3 Qa6 Nd4 Bg5 Nc5 Rb6 e6 Bd2 Ke5 Rb4 e7 Qbb2 Qg2 Qd8 Bae4 Nf4 Nb7 Kd7 Bf1 Rg4 Kf6 Qe3 Bb1 Qaa3 Ba2 Rb6 Bfc4 Qad3 Na5 Bb7 Qf3 Bd5 Nb7 Ne6 Qe4 Ng7 Qg2 Rf4 Qe4 Qc7 e8B+ Kc8 Ba4 Nh5+ Kg5 Qc6 d7+ Kc7 d8R Ba3 Rf8 Qd7 Qe6 Rd6 Kh6 Rc6 Kh7 Ra6 Qe4 Rg6 Kh8 f6 Na5 Kd6 Bf7 Be6 Qc6+ Ke5 Bg8 Bf7 Nb7 Be8 Bgd5 Bf7 Ne6 Rh6#
1rr2BNQ/1n1b2R1/1P2k1BN/1n6/qr1qb2p/2N1R3/1r1P1KRq/3Rbb2 w - - 0 1 illegal: No possible last move, all moves rejected
1k1bB3/1r5b/1Pn3PR/R2n2p1/qrnrbN2/B6q/N1B3rB/2nNKQ2 w - - 0 1 illegal: No proof kernel
2QN1RR1/q2b2bB/p1qB2K1/3qB3/B1rPrr2/1Pb1b1R1/1n2N3/1k4nr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 c5 g5 f5+ Ke5 h5 e4 a6 b3 c3 g6 f3 g7 c4 b6 f2 b7 c2 Bh3 f1R Bh6 c1B Qf3 c3 Bg5 f4 Qe3 c2 Bd7 f3 Kf5 f2 e5 h3 e6 h4 e7 h2 e8B h3 Nd2 Nh6+ Kg6 Nc6 g8R Bg7 b8B Ng4 Ra3 Nge5+ Kf5 Nc4 Ndf3 Bd2 Ba7 c1B Qe5 Kc3 Bh5 Kb2 Qe7 N6e5 Bh4 Kb1 Qe8 Nb2 Ne2 Bc3 Ra5 Be3 Rg1 h1Q Ng5 h2 Bg3 Qc6 Ne6 h1R Bb8 Nf3 Bg6 R8h4 Bge5 Re4 Rg3 Ng1 Bbd6 Qdb6 Nd8 Qa7 Qf8 Rb8 Bh7 Rb4 Kg6 Rc4 Be8 Bd7 Ra2 Rc1 Ra5 f1Q Rc5 Qd5 Rc8 Qg2 Qf5 Rf1 Qg4 Be6 Ba4 Rff4 Qf5 Bd7 Rb8 Bb5 Qc8 Qf3 Rb7 Be8+ Rf7 Bd7 Rff8 Qc6 Bf6 Re6 Be7 Qfd5 Bd6 Ree4 Bfe5 Rhh4 Rg2 Rh3 Rg3 Rh1
B4b1R/rn2pNQ1/3qN1Nq/1P2bnb1/qq2Pb2/k5Br/3rN3/1BR2K2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h3 g5 Na3 g3 Rh2 g4 Bd2 g2 Rh1 g3 Nb1 Bb7 Bh6 Bf3 Bc1 Bg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 b4 h5 f4 d5 c4 Kd7 e4 Kc6 g5 a5 f5 a3 c5 h4 f6 h3 g6 h2 g7 a2 f7 d3 Ne2 Kb5 c6 g1B c7 g2 c8B a4 Bf4 d4 Qd2 a3 Be3 Ka4 b5 Nc6 Qb2 d2+ Kd1 Ra7 Bg4 Na5 Nc1 Nh6 Ke2 d1R g8N d3+ Kf3 d2 Ke2 Nf5 Qg7 Rh3 Nb3 Nb7 Bf2 Qd6 Bg3 Qb4 Nd4 Be3 Ne6 g1B Nh6 Bg5 Nc3+ Kb3 Rc1 a1Q Bh5 a2 Bg6 B1e3 Bh7 Ka3 Bg8 Bef4 Kf2 Bf6 Bd3 Bh4 Ne2 Bhg5 Bc2 Qe5 Bb1 a1B Kg2 Rg1+ Kf2 Rg2+ Kf1 Qed6 Qh8 Bfg7 f8N Bae5 Ng6 Bf8 Nf7 d1Q+ Be1 Qda4 Qg7 Re3 Bg3 Rd3 Rg1 h1Q Rc8 Qb6 Rc1 Qh5 Rh1 Q6d6 Rh4 Rh2 Rh3 Rd2 Rh4 Qg4 Rh8 Qh4 N6d4 Qba5 Nh6 Nd8 Bd5 Rh3 Ne6 Q5b4 Nf7 Qh6 Ba8 Nb7
b1nrNbk1/1N2p2q/4PqBb/r4R1K/2rqBN2/B1R5/n1QrP3/N2q4 w - - 0 1 legal: proof: f4 c5 b4 h5 d4 cxd4 g4 hxg4 b5 Qc7 b6 Qe5 fxe5 axb6 Bd2 b5 Bc1 b4 Kf2 g5 Kg3 b5 c4 f5 h4 Kf7 a4 d5 a5 d3 h5 b3 a6 d2 a7 b4 c5 b2 h6 f4+ Kg2 b3 c6 f3+ Kg3 f2 c7 d4 h7 d3 Rh6 Nd7 Rc6 Nb6 Bh3 f1Q Ra2 Bb7 c8N Nf6 Ra5 Ne4+ Kh2 g3+ Kh1 g4 Rc2 g2+ Kh2 Qf6 Rb5 Nc3 Kg3 Na2 Na3 b1R Rc3 b2 Qc2 d1R e6+ Kg7 Rbc5 d2 Nd6 Nc8 Rf5 Bc6 Kf4 g3 Kg4 Ra1 Nb7 b1Q Kh5 Be4 Nf3 g1B Nc4 g2 Ba3 Be3 Ncd6 g1Q Nd4 Bh6 Nb3 Qgd4 Bg2 Rb8 a8B Rc1 Bf3 d1Q Bh1 Rg8 h8N Kh7 Bf3 Rg1 Ne8 Kg8 Bh1 Rg3 Ng6 Rd3 Nf4 Rd2 N7c5 Bg2 Be4 Ra8 Bd3 Bc6 Bhe4 Rb8 Qb2 Ba8 Nb7 Rcc2 Rcc5 Rc4 Qc2 Q1g1 Rc6 Qbd1 Rcc5 Qgg7 Rc7 Qh7 Rc6 Rb1 Na1 Rb5 Rc7 Rcb4 Rc3 Ra5 Re5 Rba4 Bg6 Rc4 Rf5 Na7 Be4 Rd8 Qb1 Nc8 Qc1 Rd3 Qc2 Rd2
kN5K/1q1PRq2/b2nqb2/1QP5/pnR2r2/1bNR1N2/1N1n2Bq/1r1bB3 w - - 0 1 illegal: No proof kernel
b1b2K1b/BrP3Nn/BpP2R1R/q3qN1q/NQ4nB/5r2/2k3qN/3r3r w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kd2 Ke7 Kd3 Kf6 Kd4 Kf5 Kd5 g5 h4 g3 c4 f3 a4 f2 c6 b3 h5 b2 c5 g2 c7 g4 e3 g3 h6 Ra7 h7 Na6 a5 Nf6+ Kd4 d5 Ne2 g1R Qe1 g2 Na3 b1Q Bd2 Qb5 Rh6 Ng4 Nc4 Bg7+ Ne5 Rf8 h8B Rh1 Bc1 g1Q Qb4 Qg3 Ra3 f6 Nf3 Qh2 Bb2 Qh5 Nh2 Qbe8 Bc3 Qee7 Be1 Qe5+ Kd3 d4 Kc4 d3 Nd4+ Ke4 Nf5 d2 c6 d1R Ra1 Nc5 a6 Qd2 Be2 f1B Bh4 Ne6 Ra3 Ra8 a7 Rb8 a8N Ng5 Nb6 Qa2+ Rb3 Qaa5 Na4 Bh3 Rd3 Rf7 Rd6 Rf8 Ne7 f5 Rdf6 f4 Nf5 f3 Bf1 f2 Be2 Rf7 Bf1 Qf4 Be2 f1Q Bd3+ Ke5+ e4 Qg2 Bf1 Qfg3 Be2 Kf4 e5 Ke4 e6 Qge5 e7 Rf8 e8N Rf7 Bf2 Rf8 Ba7 b6 Bf1 Bb7 Be2 Ba8 Bf1 Rf7 Be2 Bf8 Bg7 Bc5 Bf8 Be3 Neg7 Bd4 Bc5 Bb2 Bf2 Rb7 Bh4 Bc3 Nd6+ Ke3 Ndf5+ Kd2 Kb3 Rd7 Ba6 Rd3 Kc4 Rf3 Qc5 Qee2+ Kd5 Qeb5 Kd6 Kc2+ Ke7 Qb2 Qb4 Qa1 Rf8 Bb2 Ne8 Bh8 Rff6 Q1e5+ Kf8 Nf2 Ne7 Bc8 Nf5 Ng4 Neg7 Nh7+
N3q1kB/PR2B1r1/q6r/3nbNR1/Pp1b3K/1b1q2nN/2Q1qn2/1B3b1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 Kf2 d5 e4 f5 a4 Kf7 h4 g5 c4 b5 c5 f3 Kg3 b4 a6 f2 a7 d3 e5 d4 c6 d2 c7 f4+ Kh2 d3 h5 f3 Kg3 Nh6 e6+ Kg8 e7 Bg7 e8N Na6 Nd6 Be6 c8N Qe8 Nb5 Nc7 Qc2 d1N Bf4 d2 Qa2 Nf5+ Kh2 g3+ Kh3 g2 h6 Bb3 Nb6 Ng3 Qc2 g4+ Kh4 Be5 N1c3 Nd5 Bd3 f1Q Nd6 f2 Nce4 Qe2 Bg5 f1B Nf5 Nf2 Nh3 g1B Be7 d1Q Ra2 Rb8 Na8 Rb7 Ra1 Rh7 Rh2 Rg7 Rg2 Rb6 Rc1 Qdd2 Rd1 Qc3 Re1 Qcc8 Rd1 Qa6 h7+ Kf7 h8B Kg8 Qd2 Rbg6 Bb1 Qad3 Rc1 Re6 Rc7 Rb6 Qg5 Rh6+ Qh5 Qa6 Rb7 Ngh1 Bg5 Qed3 Nfg3 Nd1 Be7 Bgd4 Nf5 g3 Rg1 g2 Nef2 Be2 Rf1 g1Q Re1 Qg2 Rg1 Qh2 Rg5 Ng3 Nh1 Bf1 Nc7 Re6 Qe2 Reg6 Qa2 Qhe2 Qc2 Nf2 Na8 Rh6+
n2KN2q/PR3Nb1/3P1rRn/rNnb2B1/2Bn2qQ/1B2r2b/1k3b1p/2N5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 a4 b5 d4 f5 g5 c5 a5 f3 a6 h3 d6 b3 g6 f2 d5 b4 d7 f4 Ke6 b2 d6 h2 g7 h4 Qa4 h3 Be3 f3 Bg5 Nh6 g8B Nc6 Bc1 Bg7 Nd2+ Kc3 e4 b1N e5 b3 Ba3 c4 Be2 f1N Bc5 b2 Qb5 f2 Ra4 Ng3 Ngf3 f1R Rb4 Ne4 Nh4 Na3 Nb3 b1Q Nf3 Qd1 Qa5 Nb5 Be3 Kb2 Bg5 c3 Rg1 h1B Nfd4 c2 Qa4 c1B Bc4 h2 a7 Be3 Rg3 Bf2 Bf7 Rh7 Rg1 Qh8 Nc1+ Kc3 Bb3 Kb2 Rg4 Bg2 Rg3 Bb7 d8N Nc7+ Kd7 Qg4+ e6 Bh3 Nb5 Nd4 Bg8 Bd5 Nf7 Rb8 Rg1 Rb6 Kd8 Nc5 e7 Na8 e8N Ra6 Qa5 Qf3 Bf4 Be4 Na3 Be3 Ne5 Bf8 Rb7 Re7 Qe1 Ra5 Bgc4 Bg7 Qh4 Bd5 Rg6 Qg4 Bg5 Rf6 Nf7 Bf2 Nb5 Re3
1n2k2r/PbRp3N/R3nqn1/1b3r1r/Q2rq2R/7R/2P2BBN/K3bnN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 f4 h5 g4 e5 a4 b3 f6 b2 f5 h3 a5 h2 g5 h4 g6 e4 a6 b4 g7 h3 a7 d3 Nf3 b3 Kc3 d2 Nd4 e3 Qe2 d1B Ra4 Ne7 g8N Ng6 Ra6 Bb7 Qg4 e2 Bg2 e1N Be3 Nd3 Nd2 b1R N2f3 b2 Ne2 Ndf4 Bf2 Ne6 Neg1 Be2 Qa4 Rd1 Kb3 b1N Kb2 Bb4 Ka1 Rd4 f7+ Kf8 Nf6 Nd2 Nh7+ Ke7 f8R Nf1 Rd6 Be1 Ra6 Bb5 Rg8 Qb6 Rc8 Qd6 Rc7 Ke8 Nf8 Rh5 f6 Rf5 f7+ Kd8 Ng5 Qe7 Nfh7 Qf6 f8R+ Ke7 Rf7+ Ke8 N5f3 Re5 Ne2 Rf5 Rg1 h1Q Nh2 Kd8 Rf8+ Ke7 Rh8 Kf7 Bc6 Qe4 Rg3 Ke7 Ng1 Kf7 Ng4 h2 Rh3 h1R Rh4 Rh3 Nh2 Ke7 Rg4 Rhh5 Rh4 Qe2 Bg2 Qe4 Nf8 Ke8 Rh6 Nc6 Nh7 Rd8 Rh3 Nb8 Rh4 Kf7 Rh3 Rh8 Rh4 Ke8 Rh3 Rhg5 R6h4 Rh5
B2n3q/pB1k1r1R/2n1r1Pr/1Q2qb1K/3N1r1B/R1RnR1b1/2Nb2P1/7n w - - 0 1 illegal: No possible last move
r4n1k/2r1R1bB/NK3nb1/3bP1pN/3B1q1Q/2Nr2NR/rrb1P3/1r4R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 f5 Kd3 Kf7 Kc4 b5+ Kd5 g5 h4 Kg7 c4 b3 a4 b4 h5 d3 a5 f4 c5 f3 a6 g3 a7 g2 c6 f2 c7 b2 Bf4 d2 Rh4 b3 Kd4 d5 Qc2 d1B Rh3 Nf6 Qc4 Bf5 c8N Bdc2 Nc3 b1R Ne7 b2 Kc5 d4 Be3 d3 Qh4 d2 Bd4 Rh7 h6+ Kh8 Kb5 Bfe4 Nf5 d1R Ng3 Rc7 h7 Bd5 Ka5 Rd3 Kb6 Kg7 h8R Nbd7+ Ka6 Qe8 Rh7+ Kg8 Re7 Qf7 Ka5 Bg7 Ka6 Nf8 Kb6 Re8 a8N Rd8 Nf3 g1R Bg2 f1R Nh5 Kh8 Nh2 Rfd1 Bh1 R1d2 Nf1 Rg4 Nfg3 Re8 Bg1 Ra4 Be4 Ra2 Bd4 Rd8 Bh7 Rdc8 Kb5 Rd8 Nb6 Rda8 Nba4 Ng8 Nc5 Qf4 Kb6 Nf6 Na6 Rbd1 Bg8 Ba4 Nb1 Be8 Ne4 Bg6 Nbc3 b1B Neg3 Rf1 Bh7 Rdb2+ Nb4 Bc2 Rb1 Rf2 Rbh1 Rf1 Rg1 Bcb3 Na6 Rfb1 Kb5 Ba4+ Ka5 Bab3+ Kb6 Bc2+
qQ3Rn1/1b6/RbP4r/3pb2B/n3NBNK/k2P2b1/n2R1b2/1RnBbr2 w - - 0 1 illegal: No possible last move, all moves rejected
r6K/nQ3P1R/1b2N1r1/2BR2nn/R3nnbr/5p1n/RB1P2Nk/1B2r2q w - - 0 1 illegal: No proof kernel
3K1r2/Pk4b1/b1NB2nb/1N2RRB1/1q3rn1/RQ1p3n/bP2Bb2/2nRb3 w - - 0 1 illegal: No proof kernel
1k6/pPb1b1br/1N4R1/P2R1R2/2rNnn1n/2B2Q2/R2b2q1/1BN1bKnb w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 c4 b5 d3 bxc4 Qa4 cxd3 Qb3 Bb7 Qd1 Bc8 h4 g5 a4 e5 b4 d5 f4 Kd7 b5 c5 b6 d4 h5 d2+ Kf2 d3 h6 e4 f6 e3+ Kg2 c4 a5 g3 f7 e2 h7 e1B f5 g4 f6 c3 Qe2 d1N Rh3 d2 Ra2 c2 Qe4 Bg7 f8R Bb7 f7 Kc8 Rh1 Nb2 Rh6 d1N Bg5 c1B Rg6 Nh6 Bc4 Nf5 Re8 Nf2 f8R Nc6 Kf1 g2+ Ke2 g3 Bb5 Ne5 Bf4 Nbd3 Bd2 Nf3 Na3 Kb8 Nc2 N5h4 Bc3 Bcd2 Re5 Bc6 Rff6 Qg8 b7 Bd5 Qf5 Ne4 Nd4 Bc6 Qh5 Bd5 Rff5 Nf4+ Kd1 Bc6 Nge2 g1B Rd5 g2 Nc1 Bh2 Bd3 g1B Bb1 Bge3 Qg4 Ng1 Qf3 B3f2 Rdd6 Qd5 Rd7 Rc8 h8N Qg8 Nf7 Bhg3 Nc2 Bc5 Ne5 Be7 Nc4 Bd5 Nb6 Rc4 Nd4 Bc6 Rff6 Qd5 Rdd6 Qg5 Rd5 Bh2 Nde2 Qg2 Rff5 Nd3 Nd7+ Kc7 Nf4 Nf6 Qf2 Qg4+ Nfe2 Rh8 Rb5 Rh7 Nb6 Bh1 Qf3 Ne4 Nd4 Kb8 Rbc5 Bc7 Rcd5 Nh3 Ke2 Ng1+ Kf1 Nf4 Rd7 Qg5 Rdd5 Qg2+
nk3nn1/1BbRRB2/Pq3Bnr/2n2r2/2b2N1B/p6n/1Q1KN1P1/4nn1R w - - 0 1 illegal: No proof kernel
4b1NK/1k3b2/4P2R/nnn1b1QR/r2rNPb1/4r2p/1r1RB1B1/1Rn1B1q1 w - - 0 1 illegal: No proof kernel
Bbb3R1/r1B2brB/r1PPbQ1N/Kn2n1q1/8/2NNr1k1/p2n4/NnR5 w - - 0 1 illegal: No possible last move, all moves rejected
KQ1R2q1/qr3r1p/2N3B1/qBk3Bb/7P/4qqq1/qR1bP1R1/1n2Nb1B w - - 0 1 illegal: No possible last move, all moves rejected
1nN4b/B4r2/2K2Qqp/RBNP2R1/R4bq1/1rr5/2kq1BRP/bb2b2b w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 e3 fxg4 Ba3 d5 Bb2 d3 Bc1 d4 e4 Nd7 Nd2 Ndf6 Nb1 Nd5 exd5 Qd7 Be2 Qd6 Bf1 Qd8 Kd2 Kd7 c4 Kd6 a4 Ke5 f4+ Ke4 a5 g5 f5 b5 a6 e5 a7 h6 f6 b3 c5 g3 f7 g4 c6 b2 c7 b4 Ra2 g2 Qb3 g3 Ra4 Bg4 c8R Bf3 Be2 Bg7 f8B Nf6 Qd1 b3 Nh3 g1B Qc2 g2 Ba3 Qb6 Rg8 Nd7 Nf4 Rf8 a8R Qg6 R4a6 Nb8 Qc3 Be3+ Ke1 g1B Qc4 d2+ Kd1 Rf7 Ne6 Bf4 Ra5 Ke3 Qc8 e4 Nc3 b1B Nc5 b2 Qa6 Bf6 Rg7 Rc8 Nb5 Bf2 Rg1 Bh1 Rg8 Bh8 Rg2 Bh4 Qb6 B4f6 Nd6 Rc6 Nc8 B6e5 Nb3 Rc3 Bc5 Beg7 Bb5 Bf6 Bd7 Kd3 Qd6 e3 Ba7 Ba2 Qe6 b1R Ba4 B6e5 Qf6 Rb2 Be8 Bb1 Ra4 Qh7 R8g5 Qg6 Na1 Rbb3 Bb5+ Rc4 Ra5 Kc3 Ke2 d3+ Kf3 e2 Ba3 d1Q B3c5 d2 Bf2 Qdc2 Ra4 e1B Ra5 Bg3 Ke3 d1Q Ra4 Qg4 Ra5 Rbb4 Nb3 Rc6 Nc5 Rb3 Ra4 Qa2 Bb6 Qac2 R8a5 Qcd1 Ba7 Kc2+ Nd3 Bef4+ Kd4 Qc1 Nc5 Bc3+ Kc4 Ba1 Re5 Qd2 Rg5 Ra6 Nd7 Re6 Kc5 Ree3 Kb6 Rec3 Nc5 Nd7+ Kc6 Bh4 Bd4 Be1 Bf2 Nb8+
qn2n1k1/q1r5/1pqqR1q1/r1R1NB1b/1PK4n/1nBn3N/PN1B1B2/5Q2 w - - 0 1 illegal: No proof kernel
qRB5/Bb1n1qq1/1qb3N1/1b2RNr1/4np1R/1PN2qQ1/1K1q1PRb/5k2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bd3 b4 Bf1 b3 Na3 b5 Nf3 b4 Ng5 b2 Qe2 b1B Qd1 b3 Nh3 b2 Ng1 Ra6 Qg4 Rb6 Qd1 Rb3 cxb3 Bd3 Ne2 Bc2 Ng1 Bb1 g4 Kd7 d4 Kc6 Kd2 Kd5 Kc3 f5 g5 h5 g6 c5 g7 e5 Bd3 h3 Rh2 h4 Qc2 e3 Ne2 c4 Qd2 e4 Nc2 Nf6 g8N Bd6 a4 Rh5 a5 Qb6 a6 Bb7 a7 Rg5 a8R Nbd7 Ng3 e2 Nh1 e1Q Nh6 e3 Nf7 e2 Nh8 Qg1 R8a6 e1Q Ng3 Qe6 Qd1 Qf7 Rg2 h2 Qe1 h1Q R1a4 h3 Qe3 h2 Bf1 Bc6 Na3 Be4 Ng6 b1B Qf4 Bbd3 Nb1 Bc7 Kb2 c3+ Ka3 c2 Kb2 Bdb5 R6a5 Bb7 Be3 Bd6 Be2 Bc7 Bg4 c1Q+ Ka2 Qcd1 Kb2 Qf3 Rc4 Qgd1 Rb4 Qhg1 Bh3 h1Q Nc3+ Ke6 Qg4 Bec6 d5+ Kd6 Rd4 Kc5 d6 Ne4 Qf4 Qde1 Bg4 Qh8 Bh3 Qa8 Qg4 Ndf6 d7 Qed1 d8R Nd7 Rb8 Be5 Nh5 Bh2 Qg3 Qde1 Ng7 f4 Rd6+ Kb4 Nf5 Qed1 Re6 Qdd4 Bg4 Qgd1 Ree8 Qdg7 Rh8 Qe1 Rh4 Qd2+ Kb1 Qc7 Ba7 Qb6 Bh3 Kc5 Ne3 Kd4 Nf5+ Kd3 Bg4 Qd1+ Kb2 Kd2 Bh3 Ke1 Bg4 Kf1 Bh3 B5a6 Re5 Bab5 Nh6 Ndf6 Bc8 Nd7 Nf5 Qd2+
n3nrR1/7p/1qq1b1pB/2q3rk/2NQ1B2/1r3NBP/4P1R1/K1RR1nbb w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 d5 g3 d6 c4 Bh3 exd6 Bg2 d5 Be4 d4 Bd3 cxd3 Kd2 Kf7 c4 Kg6 b4 a5 f4 d5 c5 a4 b6 g2 f5+ Kh5 c6 g6 b5 a3 f6 a2 c7 Bb7 c8R Bc5 h3 Na6 f7 Nf6 f8R Ne8 Rf6 Rf8 Rf3 Rb8 Rc6 Nac7 Rd6 Na8 Ke1 d2+ Kf2 Qc8 Na3 Qc6 Qa4 d1N+ Ke1 d3 Kd2 d4 Rh2 Ne3 Nc4 Nf1+ Kd1 d2 Kc2 d1Q+ Kb2 d3 Bh6 d2 Rc1 Rf5 Ka1 Rg5 Rf8 Qb3 Nf3 g1Q Rg2 d1B Rg8 Qbe3 Rd4 Bb3 Rdd1 Qe7 Qb4 Bf2 Qc3 Qec5 Qd4 Rd8 Nce5 Bd5 Nc4 Bc8 b7 Bce6 b8B Rc8 Kb2 a1R b6 Ra3 b7 Rb3+ Ka1 Be3 Bg3 Qf2 Nh2 Qf6 b8B Bg1 Bbf4 Bf3 Rf2 Bh1 Rg2 Qd8 Nf3 Qdb6 Bf8 Nd6 Bg7 Rf8 Bh6 Ne8
b1n1nNRb/kp1N2rr/6q1/K3rNQR/1b1Nn1P1/3BB3/P2pR3/1q4q1 w - - 0 1 illegal: Other
6K1/2nk1B1N/rbR1q3/1p2Pr1Q/bRBNNb1b/1b3rpB/5BP1/4nn2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 e5 c5 exf4 c6 g4 Kf2 Qg5 hxg5 dxc6 Ke1 c5 Bb2 c4 Ba3 Bh6 Bc1 Bf8 Kf2 c5 e4 f5 a4 b5 d4 h5 e5 g3+ Kf3 h4 a5 h3 a6 h2 d5 c3 g6 b3 a7 b2 d6 c4 g7 c2 Ne2 c3 Qd4 Be6 Qf2 Ne7 g8B Ng6 Na3 b1B Ng1 Rh5 Ne2 Be7 Qg1 Bh4 Nd4 Na6 Bf7+ Kd7 Be3 c1B Nc4 c2 Nd2 Bb3 Bf2 Nc7 Ne4 Be3 Ra6 c1B B1c4 B1c2 Qd1 Ba4 Qe2 Bcb3 Rc6 Rg5 Rf1 h1Q Rg1 Bcd2 Rb1 Qh3 Qd1 Ba5 Rb2 Bb6 Bce6+ Kd8 d7 Ke7 d8N Bc1 Bc4 Kd7 N8e6 Be3 Ke2 f3+ Kd3 f4 Kc3 Rf5 N6g5 Bc1 Nh7 Be3 Be1 f2 Qh5 f1N Bf2 f3 Rb1 Rd8 a8B Nf4 Bb7 Nd3 Rb2 Bf4 Bc8+ Ke7 Bd7 Ne1 Kb4 Ra8 Bc8 Ba5+ Kc5 Ra6 B8e6 Kd8 Kd6 Bb6 Bd7 Ba2 Rb4 B2b3 Bg1 f2 Bde6 Nd2 Bd7 f1R Bf2 Na8 Ke6 Qg4 Bg1 Rf3 Bf2 Nf1 Bc8 Rg5+ Kf6 Nc7 Bf5 Qh3 Bd7 Rf5+ Kg7 Rf6 Bg4 Rf5 Kh8 Kd7 Kg8 Be7 Qg6 Qh6 Qh5 Bh4 Bh3 Qe6
2K2B2/1n4bB/1B1PQ2p/1r1nq3/2R1Nrr1/Rp1R1Bbb/n1Prr3/2N2k2 w - - 0 1 illegal: No proof kernel
1N1r2n1/RN2br1P/2Bbp2r/Pbn1N1Rn/4r3/K2QrpB1/2R5/k3q1R1 w - - 0 1 illegal: No proof kernel
BK5n/R1B2k1p/2nPN1Rn/1R1rB3/4Nn2/br1r2P1/2Q1npq1/1b1Bb3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 e4 a5 b4 h3 d4 a4 d5 h2 b6 a3 b7 c3 g3 a2 e5 c4 b5 c2 b6 c3 e6 Ra3 e7 Nc6 b8R Rb3 b7 Kf7 Qe1 Nh6 Ba3 c1N Bb5 c2+ Qe3 Ne2 Ba6 c1N Nc3 Nd3 Bb2 Qa5 Bc4 Qa8 Qc5 Bd7 Nh3 Nde5+ Kg2 Be6 Ne4 Ng6 Be5 f3+ Kf2 Rd3 Bb3 f4 Bd1 Bf5 Qc2 Rb3 Re1 h1R Rf1 Rg8 Bc7 Nh8 e8B+ Kg7 Bf7 Ba3 Nhg5 Rh5 Be8 Rf8 Ne6+ Kg8 Bd7 Kf7 Be5 Re8 d6 Re7 Rg8 Rd3 Rb1 a1B b8B Bc3 Rg6 Re8 Bc7 Rb8 Bc8 Rb3 Bb7 Rg5 Rh1 Bcb4 Rh5 Ba5 Ra1 Be1+ Kf1 f2 Kg2 f1N Ra2 Bb2 Ra7 Ne3+ Kf3 Ba3 Rh3 Qb8 Ba8 Qb7 Rh5 Bh3 Nd2 Ng2+ Ke4 Rf5 Rhg5 f3 Rh5 f2 Rhg5 Rdc3 Kd5 Re3 Ne4 Ngf4+ Kc4 Red3 Rh5 Nb4 Kc5 Qd5+ Kb6 Nc6+ Ka6 Rg5 Nd2 Qg2 Ne4 Rbc3 Kb7 Rb3+ Kc8 Bg4 Bc3 Ra5 Rb5 Bh3 Be5 Bf5 Rb8 Rc5 Rb5 Rcd5 Qc3 Bb4 Nf6 R3d4 Qc5 Bc2 Ne4 Bb1 Qc2 Rdd3 Kb7 Ba3 Kc8 Na5 Kb8 Nc6+
3n4/1PRrr3/qr4N1/1b2P2N/kNQ1Kpbn/2nn3R/1RNbBp2/5nB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 c4 d5 b4 Kd7 g4 f5 e4 d3 c5 d4 e5 d2 b6 Kc6 g5 h3 b7 d3 g6 Kb5 g7 h2 c6 a4 c7 h4 Ne2 a3 Qc2 d1N Qb2 a2 Rg1 h1N Rg4 h3 Rg5 d2 Qb3 h2 Qe6 Rh6 Bg2 Nhf2 Nd4+ Ka4 b5 h1N b6 Ra7 Nc6 Bb4 Bb2 Nd3 Qf7 Qd6 Bf1 Nc3 Rh5 d1B+ Be2 Ne7 g8N Ng3 Nf6 Bd7 c8N Nf1 Rh3 Ng6 N8e7 Ba5 Nb4 Nc6 b8R Nd8 Bc1 Bb5 Be3 Rd7 Qc4 Rh7 b7 Qa6 Na3 Rg7 Rc1 a1R Nac2 Rb1 Rc8 Rb2 Rb1 Rb3 Neg8 Rge7 Bg1 Rb2 Nh5 Rb3 Rc7 Rb2 Kg2 f3+ Kh1 f2 Kg2 f4 Kf3 Nd5 Ke4 Nh4 Bf3 Rb3 Rb2 Be2 Bg2 Bg4 Bf3 Bb6 Be2 Be3 Ngf6 Bc1 Nh7 Bd2 Nf8 Rc3 Qd4 Rc6 Ng6 Rb6 Qc4 Nc3+
n7/n1nBr1q1/1q1N4/2Nn4/b1nQrB1B/Rp2b3/K1Pp1RNP/B2k1r2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 a4 Kf6 f4 e5 a5 g5 a6 b5 a7 d5 Bd3 b3 Be4 b4 Bf3 g3 Bh5 e4 Bg6 g2 Ra2 d3 Qe2 b2 Bh7 d4 Qe1 g4 Ra6+ Nc6 Nf3 g1R Ra5 g3 Nc3 b1N+ Kd1 e3 Ra2 d2 Bb2 g2 Ra5 Bh6 Ba3 Bd7 Nh4 Qb6 Rd5 Re8 a8N Na7 Nb5 Ne7 Bc1 Rf1 Nd6 g1Q Ra5 Nec8 Ra6 Na3 Ng2 Re7 Nc7 Nc4 Ne6 Ba4 Nc5 Rhe8 Bg8 Re4 Be6 Re7 Bd7 Bg5 Bb2 Bh6 Ba1 Bg5 Ke2 d1N Kd3 e2 Qh4 Nde3 Ra5 Nd5 Qf2 Bc6 Ra3 Nc7 Qe3 Ba4 Qd2 Kg7 f6+ Kh6 f5 Kh5 f7 Kg4 f8B Kf3 f6 Be3 f7 Kf2 Bh6 Kf3 Nf4 Qg7 f8B Kf2 Rg1 Kf3 Qc3 Kf2 Qb2 Ke1 Rg2 Kd1 Qc3 Qb8 Qb2 N8b6 Rf2 Nba8 Ng2 Qb6 Bg5 Qh8 Bfh6 Qg7 Qa2 Kc1 Bh4 e1N+ Ke2 Nd3 Bf4 Ndb2 Qb3 Nd1 Kd3 Nc3 Qa2 Kd1 Qb2 N3d5 Qc3 Nd2 Qb2 Nf3 Kc4 d3+ Qd4 d2 Ne8 Bc6 Kb3 Ba4+ Ka2 Ne5 Nd6 Nc4 Be8 Qg3 Bb5 Qg7 Bd7 b3+
3N3R/b2R3b/b7/1N1b1bPr/Q4N2/1rpnBRqn/p2PK1Nk/1q1B3n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Kd6 g4 Ke5 b6 c5 b7 f5 g5 a5 b5 h5 b6 f3 Nh3 a4 Bg2 f4 Kf1 a3 Qc2 c3 Bb2 c4 Rg1 a2 Ke1 f2+ Kf1 Bc5 Ke2 f1B+ Ke1 f3 Nf2 Kf4 e5 Kg3 e6 h3 e7 h4 e8N h2 Kd1 h1N Qg6 h3 Qh6 h2 Nd3 f2 Nc7 Qd6 Nd5 Nc6 b8N Ra3 b7 Nb4 Ne3 Ne7 Nf4 Nd3 Nc6 Nd5 b8R Bf5 Rb7 Rb3 Na3 Ba7 Rd7 Rh7 Qf8 Rh5 Bf3+ Bg2 Bg4 c2+ Ke2 c1Q Qe8 Qb1 Bd4 c3 Rf1 Bge4 Neg2 Bh7 Be3 Bef5 Nd8 Qc7 Nb5 Qe5 Rc1 f1B+ Kd1 Ndf2+ Ke1 Nh3 Bd1 Qb8 Qe4 Nb4 Qc6 Bc4 Qe4 Nd3+ Ke2 Bd5 Qa4 Qd6 Bc2 Bb7 Rf1 Ba6 Bd1 N1f2 Bc5 h1B Be3 Kh2 Ne1 Bd5 Neg2 Nh1 Rf3 Qc2 Rb1 Ra3 Rb4 Rb3 Re4 Qc7 Re8 Qb1 Rh8 Qe5 Nfe6 Qg3 Nef4 Ba8 Bc2 Bc6 Bd1 Bd5
1bRB4/NB1b1b2/2Q2R1r/3P1Nk1/b2K2p1/2P1qR2/1rr1N2p/2n1qnNb w - - 0 1 illegal: No proof kernel
N5BB/5Q2/1bR5/N1qpqN2/bKPbnk2/2rp3n/2bNPrBR/1b3n2 w - - 0 1 illegal: No possible last move, all moves rejected
B1r5/B1nN2B1/N3RP2/4Q1qn/1p1bN1n1/rkr1pb2/R2P2nn/1q4NK w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kd7 a4 Kd6 f4 Kc5 Kf2 b5 Kg2 e5 a5 h5 g5 e3 f5 b3 a6 Kb4 a7 c5 g6 e2 g7 e1N+ Kh2 c4 d6 h3 d7 b2 Qf3 e4 Ra3 c3 Ra6 h4 Ra5 c2 Qe3 Nh6 g8N Qg5 d8B Na6 f6 Bc5 Bg2 Nc7 Nf3 Bg4 Ng1 Bd4 Ra3 Bf3 Nc3 b1Q Ra2 Kb3 Ba3 c1R Bf8 b4 Ne7 Rc8 a8N Rg8 Nb5+ Rc3 Nb6 Ra8 Bg7 Ra3 Qf4 e3 Nd6 Rh8 Nc6 Rf8 Be7 Rd8 Ne4 Rc8 Bf1 Ng2 Nb8 Qa1 Qe5 Qb1 Ne2 Ng4+ Kg1 Bc5 Na6 Nh2 Nd7 Bd4 Bc5 Ra4 Ra1 Qb2 Bgf8 Bg4 Nab8 Ne1 Bg2 Nhf3+ Kf1 h2 Nf2 h3 Ba7 Qc2 Rg1 h1N Bg7 Ra6 Ra5 h2 Rd5 Ra3 Rd6 Qa2 Na6 Qb2 Re6 Bh5 Ne4 Nf2 N4g3 h1N Nf4 Nfd3 Nfe2 Nhf2 Rh1 Nh2+ Kg1 Nf4 Ba8 Bg4 Ne4 Qc2 N4g3 Nh5 Ne4 Ned3 Kg2 Qc1 Rd1 Ndf4+ Kg1 Qc2 Ra1 Ng2 Ra2 Bf3 Nac5+ Kc4 Na6 Nfg4 Kh1 Kb3 Ng1 Qb1
1n5B/1b2KR1n/rNB2pB1/4b1kq/Pp1nQ1n1/Pn2RR2/R1N3q1/3rq3 w - - 0 1 legal: proof: h4 c5 f4 g5 d4 cxd4 f5 gxh4 f6 a5 b3 a4 bxa4 exf6 Rh3 f5 Rh1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 b5 c4 h3 e4 d3 g4 h4 a3 b4 c5 f3 c6 f2 c7 d2 e5+ Kg5 e6 h2 e7 h3 Kd6 Ra6+ Kd5 Qe8 Nc3 Bg7 Bg2 f1N Bb2 Be5 Qe2 d1N Qe4 Nd2 Nge2 Nf2 Ra2 Nb3 Rf1 h1Q Nd4 h2 Nc2 d6 Bf3 Qg2 Re1 h1N Re3 Ng3 Ba1 Qf8 e8B Bb7+ Bc6 Rh1 c8R Rg1 Rc7 Nf5 Be2 Qh6 Bd3 Qh5 Rd7 Kg6 g5 Ng4 Rc7 Rd1 Re7 Kh7 g6+ Kh6 g7 Kg6 Rf3 Kg5 Re6 Nfd4 Ref6 Ne6 Re3 Ned4 Rff3 Rh1 Nb1 Rg1 Nd2 Re1 Nc4 Rd1 Nb6 N8f6+ Kc4 Nh7 g8R+ Kh4 Rf8 Kg5 Kd5 Nb5 Bc3 N5d4 Bd2 f6 Rf7 Ne2 Ke6 d5 Ke7 d4 Bc4 d3 Be6 Nd7 Bf5 Nb8 Bg6 Ned4 Re2+ Kh4 Bh6 d2 Bg7 Kg5 Bh8 Rh1 Ne1 d1Q Ree3 Qb1 Nc2 Rd1 Rg3 Qa1 Rh3 Qc3 Rhf3 Qe1
4nQR1/1N2q2k/1Kq1P3/2B1p1pB/2b1PR2/3Bn2r/nRNr2Rq/n1n3b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 d6 Qe7 f5 Qe6 fxe6 cxd6 Kf2 d5 Ke1 d4 Kf2 g5 e4 f5 a4 b5 c4 d5 h4 f4 h5 b3 h6 b4 a5 f3 a6 b2 h7 d3 Ke3 f2 a7 d4+ Kd2 b3 c5 g3 c6 g2 c7 Nf6 Qg4 Nbd7 Rh3 Nc5 Ra5 Ba6 c8B Bc4 Ne2 g1Q Ra6 Qh2 Bb7 Rd8 Na3 b1Q a8R b2 Ng3 Nb3+ Kd1 d2 Rb8 Bc5 Bd3 Kf8 Ke2 Kg7 Qf4 d1N Rh4 Na1 Nc2 Ne8 Ra2 Ne3 Ba6 f1N+ Qf2 Rd6 Rf4 Nd2 Nf5+ Kg6 Bb5 Ndb3 Bc6 Rd5 Nd6 Kh6 Bd2 Qc1 Nb7 b1N Bb4 Ba7 Bc5 Nc3+ Kf3 Rd6 Rb2 Na2 Ke2 Ng7 Rg8 Ne8 Rb1 Qa3 Rb2 Nbc1+ Kd2 Qa6 Bb5 Qa4 Be2 d3 Bh5 Rd5 Ba6 Qc6 Bb5 Nb4 Kc3 d2 Ba6 d1Q Bb5 Be2 Bd3 Qf1 Qf3 Qfh3 Qf1 Qf5 Qf3 Qf7 Qf2 Qe7 Qf3 Nf5 Kc4 Nba2 Qf1 Qcc7 Kb5 Ne3 Rg4 Rd6 Rg2 Qc6+ Ka5 Rd7 Rf8 Rd5 Rf4 Kg7 Ba6 Rd2 Bd3 Rg8 h8R Rf8 Rg8+ Kh7 Rh4 Rf3 Qf2 Rh3 Qf8 Bf1 Rf4 Nd1 Ba3 Bg1 Bc5 Ne3 Bb5 Qcd7 Kb6 Bc4 Ba6 Bd5 Bf1 Bc4 Bd3 Qc6+
1bR4R/b2bKq2/b1BQp3/1N4n1/1rkB4/r1n1r1Pp/N1P5/q2B1bRR w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Ke2 Kf7 f4 Ke6 a4 Kd5 a5 h5 f5 b5 a6 h4 a7 b3 g6 b4 g3 d3+ Ke3 h3 Kf4 e3 Kg5 b2 g7 d2 f6 e2 f7 e1B Qg4 d1B Ra3 b3 Kg6 Be2 Bf4 Kc4 Qf5 d5 Qg5 d4 Bd2 d3 Ra1 Nd7 Be3 d2 Qe5 d1B Qb8 Qe8 Kf5 Ne5+ Kg5 Ba6 Qb7 Nf6 g8B Bf2 Nc3 b1Q Qb6 b2 Nb5 Ne4+ Kf5 Nc3 Ke6 Nf3 Bd4 Qa2 Rb1 Qa1 Qd6 Be3 Bg2 Bf1 Ne2 Bg7 f8R Be5 Rc1 b1R Bf7 Rb4 Bh5 Qf7+ Kd7 Rh7 Rh8 Ng5 Bc6 Rh6 Rb1 Re6 Nc1 Bg4 Na2 Bf2 Rc8 Bf4 Re1 Re3+ Kd8 Bd7 Bd1 e6 Rg1 Rb8 a8R Rb3 Na7 R8b4 Nb5 Ra3 Rh1 Bd3 Reg1 Bf1 Qf8 Bb8 Qd6 Qh5 Ke7 Rf3 Bf6 Bfa7 Bd4 Re3 Rh8 Bc7 Rad8 Bcb8 Rc8 Qf7+
5rb1/q2k1q1r/2Rp2Pb/B2Rp3/Q3bnP1/3b4/KN2qNBb/2n1BB1N w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 h5 c4 b5 Kc2 e5 Kb2 h4 f4 b3 a4 d3 g4 d6 f5 d2 c5 b4 a5 h3 f6 h2 g6 e3 a6 e2 f7+ Kd7 a7 e1B Nf3 Rh7 Nc3 Qe7 Ne4 Nc6 Nfg5 Bh6 f8B Nd4 Nf2 Nf6 Nge4 Qf7 Ng3 Nd5 Ra5 Nf4 Be7 Bb7 Ra6 Be4 Bh4 Rf8 a8B Bd5 Kb1 b2 Rc6 Nb3 Ka2 Bc4 Qc2 d1Q Bd2 Qe2 Rg1 Bd5 Ngh1 Be6 Rg3 Bc4 Rd3 b1B+ Kb2 Ba2 Rd5 Bd3 Bc3 Bd2 Bd8 Be3 Be1 Bd2 Ba5 Be3 Ng3 h1Q Bb7 Qe4 Ngh1 Qc4 Ba8 Qa6 Bb7 Qa7 Ba8 Nd2 Qa4 b3 Ka3 b2 Bb7 Bac4 Ba8 Ba6 Ka2 b1B+ Ka1 Bf5 Rc8+ Ke6 c6 Ke7 c7 Be6 Rd3 Qg7 Nh3 Qg8 Bag2 Bg1 Rd5 Be4 N3f2 Bad3 Ka2 Qg7 Rd8 Bg8 c8N+ Ke6 Nb6 Bh2 Nc4 Nb3+ Nb2 Qgf7 Rc8 Ke7 Rc6 Ke8 Bed2 Kd7 Be1 Nc1+
Qr2RrB1/1qr5/3pKp1r/5N2/3R3B/2k1rPBP/R2bn1qq/b4BnN w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 d6 Ba6 Kd7 Bf1 c5 e6+ Kc6 Ba6 cxd4 Bf1 Bd7 exd7 Rh4 Bh3 Rh6 Bf1 Rh8 Kd2 Kd5 Kd3 g5 a4 e5 h3 b5 f3 g3 a5 g2 a6 g4 c3 g3 a7 e4+ Ke2 Kc4 Qd2 d3+ Ke3 b3 Kf4 e3 Kf5 b2 Qd1 e2 Bh6 e1B Qd2 b4 Ra2 b3 Qe2 Bd2 Be3 Qg5+ Ke4 Nh6 d8B Nf5 Bc7 Rh6 Qf2 Bg7 Bf4 Nc6 Bd8 Nfd4 Ne2 g1R Be5 g2 Bg3 Rc8 a8R Rc7 Be7 Be5 Re8 Qg7 Beh4 f6 Bh2 Qg8 Ng3 Ne2 Qa7 Ncd4 Nf5 Qg5 Bf4 Qg3 Qa8 Qh2 Bfg5 Bdf4 Bf2 d2 Bg3 d1R B5h4 Rd3 Nd2+ Kc5 c4 Kb4 Kd5 b1Q c5 b2 c6 Kc3 Nb3 Bd2 Nc5 Qc2 Ra6 b1R Ra2 Rb8 Ne4+ Kb4 Re6 Qb1 Nf2 Kc3 Re7 Qb7 Re8 Nb3+ Ke6 Nbc1 Qa7 Kb3 Qa8 Ba1 Ra5 Kc3 Ra2 Rf7 c7 Rf8 c8B Re3+ Ne4+ Kc4 Bd7 Bb4 Ke7 Rb3 Nf2 Rc3 Nd3 Nd4 Be2 Rd1 Ra3 g1Q Ra2 Qgg2 Nf2+ Kb3 Re1 Rc7 Bf1 Bbc3 Re4 Rd3 Nh1 Bd2 Rg4 Kc3 Rf4 Nde2 Re4 Ng1 Rd4 Rfh8 Kf7 Nce2 Ke7 Rc5 Kf7 Rf8+ Ke7 Qd5 Be6 Qc6 Bf7 Qb7+ Ke6 Rc7 Bg8 Re3+
2Rn1NNK/2q1R2b/3pP3/2n1nq1B/1rpP1qrB/b3kn1N/1B5N/3n1Q2 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 axb5 g5 c4 gxh4 c5 Nc6 Kf2 Nd4 Ke1 Nc2+ Kf2 Bxc5+ Kf3 Bd6 Kf2 Bf8 Kf3 Ke7 Kg4 Kd6 Kf5 Kd5 b4 Kd4 e4 a5 g4 c5 g5 h5 d3 a4 e5 h3 b6 h2 b7 f3 b8N f2 g6 a3 g7 a2 b5 h4 b6 c4 b7 h3 Na6 Ba3 b8B d6+ Kf4 f5 Qg4 Qc7 Kg5+ f4 Kg6 Ne1 Qe2 f3 Nc3 Rh4 Ne4 Rg4+ Kh7 Ne7 g8N Bf5+ Kh8 Nc6 e6 Bh7 Ng3 Nd8 Nb4 Ra4 Nd5 Rb4 Rb1 a1N Nb6 Nb3 Nd7 Nc5 Nf8 Rg6 Ba7 Rg4 Bg2 f1Q Rb3 f2 Bf3 Bf5 Qd1 Bh7 Bb2+ Ke3 d4+ Qd3 Bb6 f1Q Be2 Qf4 Nf1+ Kf2 Ba5 Qdf5 Rg3 Nf3 Qd3 Rh4 Rg7 Rg4 Qd1 Rg6 Re7 Rg4 Ng3 Ke3 Qf1 Rb3 Be1 Rb4 Bd1 Rg5 N1e2 Rg4 Rg1 h1N Rg2 h2 Ng1 Rh4 Nh3 Nf2 Be2 h1N Bd1 Nh2 Bh5 Nfg4 Ne4 Nd7 Nd2 Qf7 Nh6 Nhf2 Nf3 Nge5 Rg8 Nc5 Nd7 Ndb7 Rc8 Nd8 Ng8 Nd1 Nf8 Rg4 Bh4 Q7f5 Qg2 Nf1 Nh2 Nd2 Qf1 Ndf3
1kr2N2/1rRb4/QP1nBb1b/R2R4/p1K1Nr1P/4b1q1/1BR1np1B/5b1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 Kd7 b4 Kc7 h4 a5 c4 f5 e5 f3 c5 a4 c6 g3 e6 g4 e7 f4 e8R f2 Nh3 g2 Nc3 g1B Re7+ Bd7 Qb3 f3 Rg7 g3 Bh6 g2 Qa2 Ra7 Rf7 Ne7 Rf6 Nc8 Rd1 Rb7 Rf5 Nd6 Bc1 Bh6 Nf4 Qg5 Ne4 Qg3 Qc4 Rc8 Bb2 Bh2 Rg5 g1B Bh3 f1R Rd2 Be3 Be6 Rf2 Rhd1 Rf1 Kc2 d3+ Kc3 Rf2 Rc2 d2 Ng6 d4+ Kd3 Rf1 Rd5 Bhg1 Rdc1 d1B Nf8 Beg5 Rb1 B1e3 Rbc1 Bf6 b6+ Kd8 Qa6 Rf2 Rcc5 Be2+ Kc2 Rf1 Ra5 Bc4 b5 d3+ Kb1 Rf2 Rc2 d2 Ka1 Bf1 c7+ Ke8 Ka2 Nc6 Ka3 Nd4 Kb4 d1Q Kc5 Ne2+ Kb4 Rd8 c8R Qc1 R8c7 Rc8 Nc3 Kd8 Ne4 Ra7 b7 Qa1 b8B Rb7 Ba7 Qc1 R7c3 Qe1 Bc5 Kc7 b6+ Kb8 Bd4 Bh3 Be5 Qh1 Rc7 Bf1 Bf4 Rg2 Bfe5 f2 Bf4 Qgh2 Bfe5 Rg4 Bf4 Q2g2 Bg3 Rf4 Bh2 Bc1 Kc5 Qg3 Kb4 Bd2+ Kc5 Be3+ Kb4 Nf5 Kc4 Nd6+
2r4k/RrBR4/RpNb1RK1/q4N1r/n3b3/3P2q1/2nPrpN1/Qq3B1r w - - 0 1 legal: proof: f4 a5 h4 e5 b4 axb4 h5 exf4 h6 d5 Nh3 d4 Ng1 d3 cxd3 gxh6 Na3 h5 Nb1 h4 Kf2 f5 Kf3 Kf7 a4 Kg7 g4 c5 e4 h5 a5 b3 g5 c4 g6 b2 a6 c3 e5 c2 e6 h3 e7 h2 e8R h4 a7 h3 Re2 Rh7 Bg2 Bd6 Bf1 Nc6 Ra5 Nb4 Re3 Nf6 Ra6 Ne4 Rb6 Nc5 Nc3 b1Q Nce2 Na4 Ng3 Kh8 Ra6 Qa5 Re6 b6 Ba3 c1Q N1e2 Rb7 Rf6 Qc7 Bb2 Be6 Be5 Rc8 a8R Nc2 R8a7 Bc4 Rg1 h1R Rg2 h2 g7+ Kh7 g8N Kh8 Ne7 Bd5+ Ne4 Qb8 Nc6 Qc7 Rg7 Qb8 Kf2 f3 Kg3 f4+ Kg4 f2 Kf5 f3 N4g3 Be4+ Kg5 Qc7 Nf5 Qb8 Kg6 Qc7 Bg2 f1R Rd7 f2 Nf4 Re1 Bf1 Re2 Qc1 Rg1+ Ng2 h1R Qa3 Rh5 Qa1 Rgh1 Bg3 Ba3 Bh2 Qf4 Bg3 Qh4 Bb8 Bd6 Bc7 Qg3+
1NB2R2/2qKQBBk/Prn5/p1q1P2n/bnnB4/6R1/pN5r/2b1nRq1 w - - 0 1 illegal: No possible last move, all moves rejected
b3bb2/3n1rNR/Pk1pPb1b/r2q4/pN5n/K2nR3/1qQB3R/N2B3R w - - 0 1 illegal: No proof kernel
1N5R/BKr3Rb/p1Rbr3/1N1p4/1nnP1k2/q4n1P/1q4rn/1n2BNQN w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 hxg4 Kf2 exf4 Ke1 c6 b4 Qb6 Bg2 Qc7 b6 Ne7 b5 Qe5 b7 Qf6 b6 Ng8 Bd5 Qg5 Bc4 Qd8 Bb5 cxb5 Kf2 Ke7 c4 Kf6 d4 Kf5 h3 g5 e3 d5 c5 g3+ Kf3 g4+ Ke2 b4 Kd3 g2 c6 a6 c7 g3 Ra5 b3 Nf3 g1N Ne1 b2 Qc2 g2 Nd2 b1N Qd1 f3 e4+ Kf4 e5 f5 e6 f2 e7 f1N e8R Nd7 b8B Rh6 b7 Nf3 Rg1 Nb6 Ba7 N1h2 b8N Re6 Rc5 Bd6 Rc6 Ne7 Rh8 Nc4 Bb2 Qf8 Bc3 Bd7 c8N Be8 Ba5 Bg6 Nf1 Bh7 Bb4 Qg8 Kc2 Qg3 Kb3 Qf2 Ka4 Qb2 Rc5 Nc6 Nd3+ Ke4 Qc1 f4 Be1 Nb4 Nf2+ Kf5 Rc6 Kg5 Rh1 g1R Qe3 Rg2 Rg1 Kf5 Nh1 Kg5 Bc5 Kf5 Na7 Kg5 Nb5 Kf5 Nd7 Rc8 Qf2 Nh4 Nb8 f3 Qg3 f2 Ba7 N4f3 Qg6+ Kf4 Qg8 Ncd2 Ka5 Qa3+ Kb6 Nc4+ Kb7 Qb2 Nd2 f1Q Qg7 Qd3 Nf1 Qda3 Qg8 Rf2 Rg7 Rg2 Qd8 Kf5 Qg5+ Ke4 Qe3+ Kf5 Qf2 Kf4 Qg1 Rc7+
3r3K/1NQ2nNP/2R1P2R/rn1r1B1R/R3r3/2b2k2/2p1r1pq/qbB1B2b w - - 0 1 illegal: No possible last move
1nNR3B/q2PN1N1/2QBrbrq/2p4b/1R3Bk1/K1b2n1b/1pP5/B1b1r3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 gxf5 h5 Bc4 d5 Be2 dxe4 Bg4 hxg4 h4 Kd7 f4 e5 d4 b5 Kd2 g5 a4 e3+ Kd3 g3 f6 Ke6 a5 Kf5 a6 e4+ Ke2 g2 a7 b3 d5 b2 h5 b4 f7 b3 h6 g4 d6 g3 h7 Bh6 f8B Kg4 f5 Qg5 f6 Ne7 f7 Ng6 Ra4 Rg8 h8B Ne5 Bfg7 Nf3 Nc3 b1B f8B Ba2 Nh3 g1Q Rb4 g2 Nf4 c5 Bf6 Rg6 Qd5 Be6 Bd2 Qa1 d7 g1B Nh5 Bf2 Qb7 Bh4 Ng7 Qh5 Be5 Bf6 Bfd6 Bf4 Qb5 Qh6 Qc6 Bf7 Rb1 Be8 Kd1 e2+ Kc1 e1B Nd5 e3 Ne7 e2 Be3 Bc3 Bd2 Rg5 Be3 Bh5 Bd2 Rg6 Bd4 B4g5 B2f4 Na6 B4e5 Re8 a8N Nb8 Nb6 Nh4 Qd5 Nf3 Nbc8 e1R+ Qd1 Re3 Qd5 Re4 Bd4 Re6 Qc6 Qb2+ Kd1 Qa3 Ra1 Qa7 Kc1 Bd2+ Kb2 Be1 Qa4 Bc3+ Ka3 Re1 Nd5 R8e6 Nde7 Bd2 Bb2 Bfc3 Rb1 Bgf6 Ba1 b2 Rd1 R1e4 Rh1 Re1 Rh3 Bc1 Rh1 Qc7 Qc6 Bc4 Rh2 Bf1 Re2 Bg2 Re5 Bh3 Rf5 Bg5 Rf8 Bgf6 Rd8 Qa7+
q2b1RN1/3P1r2/k2rPnR1/1R1n1Br1/b3pBq1/q5QK/p1q4N/2qNN3 w - - 0 1 illegal: No proof kernel
N4BK1/qqBp4/1R1P2rR/rQ1bk1Nq/6qP/2bRn3/q3p3/b1NN1n2 w - - 0 1 legal: proof: e4 f5 a4 fxe4 g4 b5 axb5 h5 b4 hxg4 b6 c6 b5 Rh4 b7 Rh7 b6 Rh8 Bb5 cxb5 Ke2 Kf7 Ke3 Kf6 Kd4 g5 Kd5 e5 d4 a5 h4 a4 f4 e3 c4 b4 c5 e4 f5 e2 c6 e1B c7 g3 Rh2 g4 Rh3 e3 Bd2 g2 Qb3 a3 Nc3 g3 Qc2 b3 Nb1 e2 Nc3 a2 Qb2 Nc6 b8R Rh6 b7 Bg7 Bf4 Ne5 Nf3 g1Q Ng5 g2 Rd3 Ng4 Kd6 Ra5 d5 Ne3 Nd1+ Bc3 Rc1 a1Q Rc2 Bd4 Rc6 Qa2 Rb6 Rg6 Ra8 Nh6 b8N Nhg4 Na6 Qf2 Nc5 g1Q Raa6 Bb7 c8N Nh2 Qb1 b2 Nb3 Qh8 Nc1 Qh5 Bg3 Bh8 Bf4 Kg7+ Ke7 Qgg4 Bc7 Nhf1 Ke8 Bc3 f6+ Kh6 f7 Re6+ Kf8 Kg6 Kg8 Kf5 f8B Bc6 Qa1 b1Q Qb2 Qfg1 Qb5 Qbb3 d6+ Bd5 Rb8 Kf6 Nb6 Ke5 Na8 Ba1 Rab6 Bg7 Qa4 Qb5 Rc8 Qc6 Qc4 Qb7 Qb5 Qb4 Be7 Nf5 Ra6 Qga7 Rf8 Qbg4 Rc6 Kf4 Rb6 Bgc3 Rf6 Ke5 Bf8 N5e3 Rh6 Rg6+
1rQn1qK1/1qp2NB1/Pb1RB1PN/RpRr2N1/q5bk/2nq4/1b6/2R2q2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Ke5 b5 d4+ e3 a4 h5 g4 b3 a5 b2 d6 h3 f4+ Kh4 g5 e6 g6 h2 d7 e2 f5 e1Q+ Ne2 Bg7+ f6 Qb4 d5 Qde7 d8N Qa4 Nd2 b1Q a6 Qd3 d6 Rh7 Rg1 h1Q d7 Qb7 Ne4 Rh8 Bh6 Nc6+ Kf4 e5+ Kf5 Rh7 f7 Rb8 f8R Nf6 Nd4 Nd5 Bh3 Nc3 Nf7 Nd8 Rh8 Bf6 Bg7 Nd5 Rg3 Qac2 Rg1 Nc6 Ra5 Qa4 Bf1 Rh6 Rg2 Kh3 Qe1 h4 Nd6 Rh5+ Rg5+ Kh2 Ne6 h3 d8R Bd7 Rh7 Bc8 Rd7 Nd8 Rh6 Qe3 Nf2 e4 Qd2 Bb2 Ng4+ Kg3 Bc4 h2 Qd4 h1Q Qb6 Qa7 Qb7 Qd3 Ba2 Nc3 Bd5 Qe8 Kf6 e3 Bc4 e2 Rc5 Re5 Ng5 Qg1 Bg8 Rd5 Rh1 Qgb1 Rg1+ Kh4 Nh6 Qc1 Rf1 Qf8+ Bf7 Qce3 Rc1 e1B Rc4+ Qee4 Rc6 Bf2 Rc4 Bb6 Rc5 Nc6 Rd8 Bf5 Qc8 Qb7 Rd7 Qef3 Rd8 Qe8 Be6 Qff1 Rd7 Qd8+ Kf7 Qe7+ Kg8 Nd8 Ndf7 Bg4 Rd6 Qf8+
1RrqBqnn/1P4NR/k2b2b1/2nn4/1prr3R/1R3BQ1/1P4p1/1n1B1KN1 w - - 0 1 illegal: No possible last move, all moves rejected
2b1nk1N/rpq2br1/p1Nrn1B1/1qrN1R1R/rP4Bb/B6P/Q7/3K3N w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 cxd5 hxg4 a5 Nc6 a6 Nb4 Bh3 Nxa6 Bg2 Nb4 Bf1 Na2 e4 c5 d4 f5 b4 g5 h3 a6 e5 f3 e6 f2+ Kd2 c4 d6 f4 d5 g3 e7 g2 Ba3 f3 Qe1 g4 Bd3 f1B Bf5 g3 Bd3 f2 Qd1 c3+ Kc2 Ra7 Rh2 Nc1 Bf5 Qc7 Bg4 Nb3 Ne2 g1R Qd2 g2 Kd1 Nd4 Qa2 Rh6 Ng3 Nf6 Nh1 Ne6 d7+ Kf7 d6 Ne8 d8N+ Kg8 d7 c2+ Kd2 c1R Nc6 Bc4 d8N f1Q Nc3 Qf5 Nf7 Qb5 Nh8 Bb3 Ne2 Rc5 Nc3 Re1 Rc1 g1R Nd5 Bg7 Rd1 Bf6 Rf2 Bh4 Rf5 Ref1 Rc1 Rg6 Rc3 Ra1 Rcf3 Bc4 Rh5 Rg7 Rff5 Rgd1+ Kc2 Rd4 Nb6 Rd6 Nd5 Nf6 e8B Kf8 Bf7 Ne8 Bc1 Rb1 Kd1 Rb3 Bb2 Ra3 Bc1 Ra4 Ba3 Bd3 Rf4 Bh7 Rff5 Bg8 Bg6+ Bf7
2r2Nrk/Prp1nP1b/K2pN2b/2Rn4/B1rn4/7R/1Bq1R2B/1Qr3Rq w - - 0 1 illegal: No proof kernel
1B3N2/prN5/br3n2/q1nq3P/1BRKp1n1/b3nN2/1NB1Pq1R/k3nQ2 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Qd3 f5 Bf1 f4 Qg3 fxg3 Kd2 Kf7 Kd3 Ke6 h4 Kd5 f4 g5 b4 e5 f5 e4+ Kd2 Kc4 c3 Kb3 b6 d5 c4 d3 Ke3 g2 c5 d2 b5 d1N+ Kd4 g3 h5 g4 c6 Na6 c7 Ne3 f6 Ba3 b7 Rh6 b8N Nc5 b6 Ba6 f7 Nf6 Nd7 Rb8 f8N Rb7 Nf3 g1Q c8Q g2 Rh2 g3 Ne6 Qf2 Bd2 Kb2 Bb4 g1N Bh3 g2 Nc3 Qe1 Qc6 Neg4 Rc1 Rg6 Rc2+ Ka1 Ndf8 Qd7 Nd1 Qd6 Nc7 Qf2+ Kc3 d4+ Kd2 d3 Kc3 d2 Nb2 Qd8 Qe6 Qd5 Qf7 Ne3 Bd7 Neg4 Bb5 Rh6 Bd3 d1N+ Kd2 Nde3 Rc4 Rg6 Kc3 Rh6 Bc2 Rg6 Qh7 Rh6 Qf5 Rg6 Ng5 Nf3 Qf4 Ne1 Nf3 g1Q Qf5 Rb8 b7 Qgg3 Qf4 Rg7 Qf5 Qgd6 Qf4 Qb6 Qf5 Qa5 Qf4 Rd8 b8B Rd6 Qf5 Rb6 Qf4 Qf5 Kd4 Qg5 Nd5 Rgb7 Nc7 Qg8 Qf5 Ne5 Qh3 N5g4 Qf1 Qd5+
BnB5/p3nrk1/P1rN2Nr/BbR1r3/PK1r2Np/5QN1/2qR4/2q1b1n1 w - - 0 1 legal: proof: d4 g5 f4 c5 h4 gxh4 a4 cxd4 b4 Qa5 bxa5 e5 Ba3 exf4 Bb2 Bc5 Bc1 Bf8 Kd2 h5 c4 b5 e4 d5 g4 f5 e5 Kf7 a6 d3 Kc3 f3 g5 h3 e6+ Kg7 c5 h4 c6 d2 e7 h2 e8B d4+ Kb3 f2 c7 f4 g6 d3 Bg2 f1Q Bf7 f3 Ne2 f2 Bfd5 b4 Nbc3 Rh6 Kc4 b3 Ba3 b2 Ne4 b1Q Nd6 Bd7 c8N Ne7 Be6 Bb5+ Kc5 Qc2+ Kb4 Qg1 Rb1 f1R Rb2 Rf7 Ng3 Qf1 Qh5 d1N Qf3 Nf2 Rg1 Qfb1 Rc1 h1R Bd7 d2 Bg4 Qc7 Rc5 d1R Be6 Qa1 Rd2 Rhe1 Bb2+ Re5 Bc3 Qc1 Beh3 Kg8 g7 Qc2 Bg4 Nh3 Bh1 Kh7 g8N Ng1 Nf6+ Kg7 Bh3 Qc6 Ng4 Qc1 Nb6 Qc8 Nd5 Qf5 Nf4 Qfc2 Re2 Rd2 Ng6 Rd1 Nc8 Rd6 Rd2 Rc6 Nd6 Nd7 B1g2 Rd8 Nh2 Nb8 Bc8 Ng8 Ng4 Be7 Qf2 Bg5 Bd5 Ne7 Qf3 Be3 Be4 Bf2 Bd5 Be1 Be4 Rc7 Beb7 Rc6 Ba8 Qd3 Kb3 Qe4 Ba5 Qec2+ Kb4 Rd7 Nc4 Rd3 Nd6 Rd4+
2r1nbR1/1rP2bN1/n1BB2nN/q1p3np/6Kn/kP1QR3/2B1B1n1/4n1N1 w - - 0 1 illegal: No possible last move
5nrr/pQP2k2/rB1Pq2B/1p1N4/1b3Nb1/B1R3Rr/1rr1BnK1/3r3N w - - 0 1 illegal: No proof kernel
4BQ2/K1Nn1nr1/1bb4b/1R1rP2N/1Pq1RBB1/2rq4/p1bRnpR1/1k6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 h4 Ke4 b4 a5 b6 d5+ Kb5 f5 c4 g5 c5 d3 b7 f3 c6 f2 e3 a4 h5 d2 h6 f4 h7 g3 c7 g4 Kb6 f3 Qe1 d1B Ba3 d4 Be2 f1Q Rh6 g2 Rh5 g3 Rh3 d3 Bc1 d2 Ba6 a3 Ra2 Qc4 Qe2 Nh6 Rc2 a2 Bb5 Bd7 Qf2 Kd3 e4 Rg8 h8R Nf7 e5 Ra3 Nc3 Bh6 Rh4 Bc6 Nh3 g1N Nd5 g2 Re4 Rc3 Ka7 Ne2 c8B g1B Bg4 Nd7 b8R Rg7 Rb2 Bb3 Nc7 d1R Rg8 Bc2 Bf4 Rd2 Qc5 Bd4 Rb6 f2 Qf8 Be3 Ba4 Rd1 Bb5 Kd2 Ba4 Kc1 Bb5 Rd5 Ba4 Bb3 Rd2 Kb1 Bb5 Bc5 Ba4 Be7 Rb5 Bh4 Ng5 Bc2 Nh7 Be7 Nf6 Bd6 Ne6 Bc7 Nh5 Ba5 Nc7 Rh7 Rg6 Rg7 Bh3 Qf6 Rg2 Qg6 Be6 Qg3 Bg4 Qgd3 Rd4 Ba8 Re4 Nf6 Rc5 Bb7 Be8 Nd7 Rb5 Ba8 Bf5 Bc6 Bg4 Bb6+
q2r1rR1/2R1B2B/2q4q/rb1p4/3k1N1n/N2b3p/nP1P1RRr/QK3bB1 w - - 0 1 illegal: No proof kernel forced: bxDB
1rnq3q/k1q2B2/1R5n/2p5/4b2P/bp1P1N1Q/nrbN2n1/RB1BKNB1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 h4 g5 e4 b5 d3 f5 d6 Kc6 d7 Kb7 e5 g3 a5 b3 e6 g4 a6+ Ka7 e7 g2 e8B b2 Ra2 g3 Ra4 b4 Bg6 b3 Ne2 g1N Bg2 f3 Rf4 f2+ Kd2 f1Q Re4 f4 Re3 f3 Bh7 f2 Bg6 Bb7 Re6 Nh6 Bf7 Be4 Rb6 Ba3 Bf3 g2 Ng3 c5 Qe2 Rg8 Qe3 Nc6 Bd1 Rb8 Bc2 Ne2 Rg1 Qc7 d8N Nc3 Ne6 Na2 Nd4 Ne7 Nf3 Nc8 Rh1 Qg1 Nf1 Qd8 Kd1 Qh2 Nbd2 g1Q Bb1 Qhc7 Ke2 Qg7 Kd1 Ka8 a7 Qh8 Ke2 Bb7 Qe6 Rg2 Qh3 Bd5 Nc4 Bb7 Be3 Be4 Ncd2 Rh2 Rc6 Kb7 a8B+ Ka7 Rb6 Rg2 Bad5 Rh2 Bde6 Rg2 Bg4 Rh2 Ng3 f1N+ Ke1 Rg2 Bg1 Ne3 Ngf1 Rh2 Ng5 Rg2 Bd1 Rh2 Ngf3 Ng2+ Kf2 Nb4 Ba2 b1B Ke2 Bc2 Bb1 Na2 Kf2 Ne3+ Ke1 Ng2+ Ke2 Qb7 Be3 Qhf8 Ng3 Bh7 Nc4 Nb4 Ba2 Bb1 Bc2 Qbc7 Rf1 Qh8 Bg1 Bf5 Re1 Bh7 Nf1 Be4 Rd1 Ne3+ Ke1 Rd2 Rc1 Rh2 Bd1 Rb2 Ncd2 Bc2 Ra1 Ng2+ Ke2 Nf5 Bb1 Nh6 Kf2 Na2 Ke2 Nf4+ Ke1 Ng2+
1n2BQ2/q4N2/1B2n1bb/1rp2P2/1RRN3r/B3k1nq/Prp4B/R3qqK1 w - - 0 1 illegal: No possible last move, all moves rejected
1B2k1b1/R2r1R2/2qrB3/p1B3P1/Kb2Q2q/p1r1n2r/b2n1qNP/B2N3R w - - 0 1 illegal: No proof kernel
3r1N1b/BBKn4/3bQRN1/pbPR1qq1/2r1B2r/N3bnk1/2BP1np1/8 w - - 0 1 illegal: No proof kernel
nkqRnB2/8/1N2rb1P/2qr1N1b/2Rp1P1p/1q3Q2/4RR1b/1rrKN2B w - - 0 1 illegal: No possible last move, all moves rejected
1N5b/1K2nq1R/3B2qp/krqNBR1r/B3b1p1/PB1b1R1n/1Pn1n2Q/8 w - - 0 1 illegal: No possible last move, all moves rejected
1q2rRn1/2q1N1Q1/B1n2qp1/Kp2B1N1/2k2P2/B1nnr3/1b1b1bP1/2N1NR2 w - - 0 1 illegal: No possible last move
B1b1KQrn/4Rq2/Bn2P2q/NrBbN1RB/3n1Pp1/b1k5/4rR1p/2b5 w - - 0 1 illegal: No proof kernel
k2r2n1/3rB1Bn/1n2p2R/Bq6/qbP2N1r/2Qp1q1b/2P1R2R/KBq1N3 w - - 0 1 legal: proof: g4 c5 e4 h5 b4 hxg4 e5 a5 d3 axb4 e6 c4 dxc4 fxe6 Bh6 e5 Bc1 e4 Kd2 d5 a4 Kd7 h4 Kc7 f4 g5 f5 b5 f6 Kb7 h5 d4 f7 e3+ Kd3 g3 h6 g4 h7 b3 a5 g2 Nd2 b4 Qf3+ Qd5 Rb1 g3 Bb2 e2 Rh2 e1Q Nh3 g1N Nf4 g2 Bc3 b2 a6+ Ka7 Qh3 b3 Nf3 Nd7 Ba5 Qb4 Re1 b1R Re2 b2 Ne1 Qa4 Qf3 Kb8 a7+ Kb7 Kd2 Nh3 Qc3 g1Q Bg2 d3 Be4 Rb8 a8R Nb6 Ra6 Ng5 Bf5 Qf3 Bd7 Ra1 Be8 b1Q Bb5 Qab4 Ba4 Bh3 Bb3 Qa4 Ba2 Qbb5 Bb1 Rd8 Kc1 Rd7 Ra8 e6 Re8 Bd6 f8B Ra3 Be7 Bb4 Kb2 Rd8 Rf8 Ka8 Rf6 Ra1 Rh6 Rd7 Ba2 Rc1 Bb1 Qge3 Neg2 Rh1 Ne1 Qd2 Qa3 Qc1+ Ka2 Nf6 Ka1 Rhd8 h8B Ng8 Bb2 Nh7 Bg7 Rg1 Re3 Rg4 Ree2 Qb3 Qb2 Rh4 Qc3 Q3a4+
2b5/4qqK1/q3p3/1nN1pr2/RP1NR1Pn/2k1qRnr/B1B1r3/1BB1bQ2 w - - 0 1 illegal: No possible last move, all moves rejected
5R2/bnR2br1/NqPr4/2Bp1p1k/1N4q1/1NQ4r/1P1Bb2B/rK1n1B1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 c4 g5 Kc2 f5 e4 Kf7 h4 Kg6 c5 d5 e5 a4 c6 g3 e6 g2 e7 g4 e8N f3 b6 d3+ Kc3 g3 b7 a3 Kd2 a2 Nh3 g1R Na3 g2 Nb5 f2 Qc2 Bc5 Qc3 Ba7 Nd4 Nf6 Nb3 Be6 Nc7 Kh5 Na6 Ng4 Rh2 Nd7 b8B Qb6 Bd6 Raf8 Bc5 Rd8 Rh1 Bf7 Nf4+ Kh6 h5 Ne3 Rh3 Nd1 Rg3 Rh7 Rg7 Rh1 Rg8 g1Q Rf8 Kg5 h6 Rg7 h7 Qg4 h8B Rh3 Ne6+ Kh5 Nb4 Rg5 Nc7 Rg7 Be2 f1Q Nca6 Qh1 Bf1 Rh7 Bhd4 Rg7 Bd6 Nc5 Bh2 Nb7 Bc5 Rd6 Qf6 Nf2 Kc3 d2+ Kc2 Nd3 Qc3 d1B+ Kd2 Nd8 Nb8 Be2 Kc2 Nf2 Bcf4 Nd1 Bd2 Nf2 Re1 a1R N8a6 Bb5 Re7 Be2 Rd7 Nd1 Rc7 Ra2 Kc1 Nb7 Kb1 Ra1+
2r2B1b/2Bn4/1RpN1Q1N/K1bPr1p1/4n2B/3rRq2/3kBPqN/1r1bq3 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 d4 Kf7 Kd2 Ke6 Kc3 Kd5 Kb4 a5+ Ka4 g5 h4 e5 b4 e3 h5 Ke4 b6 g3 h6 c6 b7 c3 h7 c2 b5 g2 b6 e2 d5 e1R Nf3 g1Q Na3 Nf6 Rh5 Bg4 Nh2 Bc5 Qd2 Qg2 Qd1 Nbd7 b8B Qf8 Bc7 Rc8 b7 Be2 Qd2 Bd1 b8B Re3 Bb5 Rd3 Rh3 Kd4 Ba6 e4 Nc4 e3 Ba3 e2 Re3 e1Q Nd6 Ne4 Rb1 Qff3 Rb6 Rhe8 h8N Re5 Nhf7 c1R+ Qc2 Rb1 Nh6 Rbb3 Qb1 Kc3 Qa1+ Kd2 Qd4 Nef6 Qf4 Ne4 Qf6 Rb1+ Rb3 Rc3 Be2 Rd3 Ne8 Bb6 Bf8 Bc5 Nd6 Bb6 Ka3 a4 Kb4 Bc5+ Ka5 a3 Rb6 a2 Nb7 Re7 Bg3 a1B Nd6 Re5 Bh4 Rf5 Bc7 Be5 Qg6 Bh8 Qf6 Re5
1n1bkB1K/3bN3/1Bp4n/rP2rQ2/q2pRn1P/2bR4/1qB3NN/1q2Bn2 w - - 0 1 illegal: No proof kernel
4q3/n2bn1qq/2pn3P/1rN1p1B1/1kn2R2/RNbP1B1Q/2Kr4/RR1B3r w - - 0 1 illegal: No possible last move, all moves rejected
r1BKbr2/3n2n1/1P1p1Rq1/1R1QNN1k/p4b2/Rq1r2P1/n1b1b3/NN2B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 f5 Kc4 Kf7 Kd5 Kg6 e4 a5 c4 d3 b4 f3 g3 h3 c5 a4 e5 d6 c6 f2 e6 f4 e7 h2 e8R d2 b6 f3 c7 h4 b7 h3 b5 Bd7 c8N Qb6 Ne2 Nh6 Bg2 f1B Qc2+ Kh5 Qc4 d1N Bd2 f2 Re5+ Nf5 Ne7 Bh6 Be1 Bf4 Ra3 Be8 Ke6 Rf8 Qd5 Nd7 b8N Nc3 Nc1 Na2 Nbc6 Bd3 Nb3 f1B Na1 Bfe2 Rf1 h1Q Rf2 h2 Bh3 Qe3 b6 Qhe4 Rf3 h1R Rf2 Bc2 Rf1 Bg5 Rf2 Nh4 Rf6 Qb3 Nf5 Bf4 Ke7 Qed3 Ba5 Rd1 Be1 Nb8 Kd8 Qe4 Qc4 Rd3 Rb5 Qe6 Qd5 Nd7+ Kc7 Qg8 Ne5 Qg6 Ne3 Nb8 Bc8 Nf5 Kd8 Ng7 Nf5 Nd7
N3Nb2/1N1n1B1Q/1pq4b/3rR3/2KRr2n/p3r1Pq/1P1B2rB/b4knN w - - 0 1 illegal: No proof kernel
3R3r/k5K1/Pr3p2/QR1p4/r1NPNRq1/3nnq1N/2rn2BB/3qRb1b w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Nf3 b5 Bb2 b3 Ng1 b4 Bc1 b2 Na3 b3 Nb1 Bb4 cxb4 Qf6 Nc3 Qg5 Nb1 Qd8 Kf2 c5 Kf3 d5 d4 Kd7 Kg4 Kc6+ Kh5 Kb7 a4 h3 e4 h2 g4 c4 a5 c3 g5 c2 g6 f3 g7 f2 b5 f6 e5 Bh3 e6 Nh6 g8R Qc8 e7 Ng4 e8R Na6 b6 Nb4 Nd2 b1R Re4 b2 Qe1 Ne3 Kh6 Qg4 Bg2 f1N Rf4 Nd3 Ne4 Nd2 Rd8 Ka6 b7 Ka7 Bf3 Bg2 Nh3 Bf1 Rg1 h1Q b8N Qhg2 Nd7 Qe2 Bh1 Qgf3 Kg7 h5 Nb6 h4 Nc4 Qd1 Nhg5 h3 Bg2 h2 Nh3 h1B Ra4 Qde2 Rb4 Qg4+ Kf7 Qef3 Rb5 Nb3 Bd2 c1R Bb4 Rc3 Bd6 Rc2 Qb4 Nd2 a6 Ra1 Qa4 b1Q Qa5 Qbd1 Bc7 Ra4 Bd6 Be2 Re1 Bf1 Be5 Rb8 Bc7 Qh5+ Kg7 Qh4 Rf5 Qhh5 Bh2 Rb6 Rf4 Qhg4+
1R1N2nn/Q2rB3/pP1RP1b1/r2Bp2K/1k3N2/q3qN2/1b1Nb3/r1nnB3 w - - 0 1 illegal: No proof kernel
n1b3B1/Nkr1N1rP/1b1Q1n1N/1pP1qp1R/1qB1n2b/2B4N/6R1/1q4bK w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 g5 Kg2 b5 a4 f5 c4 d5 e4 Kd7 h4 Kc7 e6 b3 h5 g3 e7 d3 e8N+ Kb7 e5 d2 a5 d4 h6 g4 e6 d3 h7 b2 e7 Qd4 Nc3 b1Q Nf6 Nd7 e8B Nb6 Bf7 Be7 Nh3 Qb4 Ra2 Ra7 Ncd5 Na8 Bb2 Qe5 Bc3 Bd8 Kg1 g2 c5 Bb6 Nh5 Nf6 Ne7 Rf8 Bg8 Rf7 Rb2 Rg7 a6+ Kb8 Rh2 Rc7 a7+ Kb7 Rh1 Qed4+ Kh2 g1B+ Kg2 g3 Ra2 Ng4 Nf6 Qe5 Rh2 Be3 Kh1 Bg5 Be2 Bh4 Rb2 Ne3 Ng4 Nd5 Nh6 Nf6 Rg2 Qa5 Rb4 Qa4 Rg4 Qae4 Rg5 Qb4 Qa1 d1N Rh5 d2 Bec4 Rg6 Qb1 Rg7 Qd3 Nf2+ Kg1 N2e4 Kh1 Rd7 Qd6 d1Q+ Be1 Nc7 a8N Qd3 Bc3 Qdb1+ Rg1 Ba7 Nb6 Na8 Kg2 Rc7 Kh1 Be6 Nbc8 Bb6 Na7 Bc8 Rf1 Q1b3 Rf4 Qb2 Rg4 g2+ Kg1 Qa2 Rg3 Qc2 Kh2 g1B+ Kh1 Qcb3 Rg2 Qb1
q1n2R2/q1N1N1pq/q2n1R2/2n1krNQ/1r1Nbbp1/P7/PBr1BBK1/8 w - - 0 1 illegal: No possible last move, all moves rejected
rB2Rq2/1bK1n1p1/1N2R1rp/br6/3nP1R1/1q4PR/qB2kNBb/1bQ5 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 axb5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 f5 e4+ f3+ Bf4 d5 c4 a5 b6 d3 b5 d2 b7 h6 b6 d4 c5 a4 c6 a3 c7 a2 Bb5 d3 Nh3 Bb4 Bc4 Ba5 Kd6 Ne7 Bb3 Nbc6 b8B Bb7 c8R Nd4 Qe1 d1B Qf1 f2 Rc1 d2 Kc7 Bc2 Be5 d1Q Na3 f4 Bc4 f3 Ba6 Rg8 Nc4 Bb1 Qe1 f1R Nf2+ Kh4 Rc3 Qb3 Qc1 Rg1 Bb5 Re8 Bd7 Rd8 Bh3 Rd5 Rd3 Rb5 Rd1 Ndc6 Rd6 Nd4 Bf6+ Kg3 Re6 Bd3 Rb1 a1B Rb2 Bb1 Re2 Ndc6 Bb2 Nd4 Re3 Rd1 Rg1 Kf4 Ng4 f2 Rd3+ Rd2 Rg3 f1Q Nf2 Rg5 Rh1 Rf5 Rgg6 Rb5 g3+ Kf3 Rg4 Ke2 Bg2 Rd3 Nh3 Qf8 Nf2 Rf3 Rh4 Rf6 Rg4 Qh5 Rh2 Qhf7 Rh3 Rg6 Kd7 Ba6 b7 Qa2 Nb6 Qf3 Bd6 Qfb3 b8R Bc8+ Kc7 Bb7 Bba3 B1c3 Re8 Bd2 Bb2 Be3 Nh1 Bg1 Nf2 Nec6 Kd7 Ne7 Bb8 Bh2 Kd8 Qff3 Kc7 Qf8
1r2b1nq/1q1r2p1/PqnP1bb1/1Q2N1q1/3B1B2/1R1RB2K/pN2r1BR/k7 w - - 0 1 illegal: No proof kernel
kb2B2n/bb3P2/1r3BRr/4qNp1/1nR3Nr/p1n1R3/rQPNN3/4K2q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 b4 a5 f4 d5 h4 Kd7 b6 Kc6 f5 Kb7 f6 e5 f7 g5 b5 e3 h5 e4 h6 g3 h7 a4 Rh6 g2 Qe2 d3 Qg4 e2 Qe6 d4 Qc4 d2+ Kf2 d1N+ Ke1 d3 Rh4 Bd6 Nf3 g1B Nh2 Ne7 Nd2 Na6 Qb4 Nc3 Bb2 Bb8 Ng4 Qd5 Ra3 Qe5 Rh6 Ra7 Rg6 Ka8 Ba1 Bb7 Qb2 Nb4 Bg2 Rd8 h8R Rd6 Rc8 Ra6 Rb3 a3 Rc4 Bd4 Bh3 Rc6 Nh2 Rf6 Bd7 Rf4 Bc6 Rh4 Ng4 Bc5 Be8 Bg1 Rd6 Ng6 Rdc6 Nh8 Rg6 Bd4 Nh6 Qc5 Qa2 Bc6 Bd7 Ncd5 b7+ Ka7 Nf1 Bbe5 Kd2 e1R b8N Rb1 b6+ Ka8 Rg8 Qb5 Bc3 Ra1 Ng4 Rh6 Qb2 Ra2 Be8 e3+ Kd1 d2 Rg6 Bc5 Ke2 Bg3 Bf6 d1R Rc3 Rd3 Rb3 Rc3 Kd1 e2+ Kd2 Bd7 Nc6 Bc8 Ne7 Be5 Nf5 Rch3 Re3 R3h4 Ke1 Bh2 Nd2 Bf4 Kf2 e1Q+ Kg2 Qh1+ Kf2 Kb8 b7 Ba7 Ke2 Rb6 Kf2 Qc5 Ke2 Nc3+ Kf2 Kc7 b8N Kb7 Nc6 Ka8 Ncd4 Bfb8 Ne2 Bb7 Nb3 Qf3+ Ke1 Qe5 Nd2 Qh1+
rQ2R3/1n1BPbN1/pKb2b1B/Rp2r1R1/1r5B/2kb2qN/B3qP2/4nq2 w - - 0 1 illegal: No proof kernel
2q5/4p3/1k2r1R1/Rn1q1BN1/p4RnB/PPq1b1Q1/1BnN1rK1/B1bqr3 w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 h3 fxg4 Ke2 g3 Ke1 g2 Nf3 g5 Ng1 g4 Ne2 g3 Ng1 Bg4 hxg4 Qd7 Ke2 Qc8 Ke1 Qd8 f4 Kd7 d4 Kc6 f5 a5 g5 h5 g6 h4 g7 c3 f6 a4 a3 h3 b3 h2 f7 e3 Qd2 c2 Nf3 g1R Nh4 e2 Ra2 g2 Kf2 e1N Qg5 Na6 Qf5 Rh6 d5+ Kb6 d6 c5 d7 c4 Bd3 c3 Qf3 Nc7 Qg3 Re6 Nf3 Nf6 g8R Bh6 f8B Qe8 Bg5 c1Q Rg6 c2 Bg7 Qd1 Rb2 c1B Re2 Qd2 Bh4 Nc2 Be4 Rd1 Rf1 h1Q Bh8 Bf4 Ng5 Ng4+ Kf3 Qd8 Bb2 Qc3+ Bd3 Qe8 Re5 Bfe3 Ra5 Nb5 Nd2 Rc8 Ba1 Rc4 Bf5 g1Q+ Qg2 Rf4+ Kg3 Qec8 d8B+ Q3c7 Rf2 Qf1 Qh3 Qc4 Rf3 Qe1+ Kg2 Qd5 Qg3 Qe2+ Kh3 Re1 Rf2 Qd6 Kg2 Qd1 Rf1 Kc6 Rf2 Qd5+ Rf3 Qce5 Bc7 Qb2 Bb8 Kb6 Be5 Qbd4 Bh8 Qb4 Bhb2 Qbc3 Bd3 Re4 Rff6 Rf4+ Be4 Rff1 Rf4 Rf3 Bf5 Rf2+
b3K3/nR1npr2/k1P5/br3P2/2b3R1/1BN3pQ/Bq3qR1/Bb1B1qNn w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 g5 Ke3 d5 Kd4 Kd7 Ke5 Kc6 h4 b5 f4 Kb7 a4 e3 c4 d4 f5 b3 h5 b4 a5 e2 c6+ Ka6 c5 d3 h6 e1Q+ Ne2 b2 c7 g3 h7 g2 Qc2 g1Q Ra4 d2 Ra2 d1N Qe4 g4 Qg2 b3 Nc3 b1B Rh4 g3 Rg4 b2 Qh3 Bb7 Ke6 Qdd2 Kf7 Nf2 c8B Bh6 Be6 Nf6 Bb3 Nfd7 Bd1 Rc8 h8R Nc6 Rf8 Qh1 Ng1+ Bd3 Bg2 b1B Bd5 Be3 Bb2 Rcb8 B5b3 Na7 Ba1 Qb2 Rc8 Bbe4 Ke8 Bc4 Rd8 Rb5 Rb8 Qc1 Re2 Qb2 Ba2 Qh2 Bdb3 Nh1 Rg2 Qf1 Bd1 Nc8 Rb7 Bd2 Rb6+ Ka7 a6 Nb8 Na4 Be2 Kf8 Ra5 Rf2 Nd7+ Kf7 Bb4 Nc3 Rb8 Rb5 Rb6 Ke8 Rf6 Rb8 Rf7 Rb6 Qhg2 Bdb3 Qf3 Rg2 Q3f2 Rb5 Ra4 Bd1 Ba5 Rb6 Rb4 Bdb3 Ka8 a7 Bc4 Rb5 Bb6 Bd1 Kb7 Bdb3 Bf3 a8B+ Ka6 Be4 Bd8 Bec2 Ba5 Bd1 Ba8 c6 Na7 Rb7 Rb5
1K1NNqkn/r2PB2r/2PQ1b1n/1rRN3b/1p1R2B1/b3B2p/4q2q/3q1N2 w - - 0 1 illegal: No proof kernel
QqRR2bq/2rP2pk/rR6/b5n1/RBrB1nN1/3P1B1b/p4Kq1/N1b5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 h4 c5 b4 a5 e4 f5 b5 Kf7 h5 c4 d3 c3 d6 c2 b6 f3 e5 g3 b7 f2+ Ke2 g2 h6 Kg6 e6 f4 h7 a3 e7 a4 e8R f3+ Ke3 a2 Nd2 a3 Rh5 Be6 d7 Ra4 Rh1 Rc4 Rh2 Nf6 Rh1 Bb4 Qe1 Nh5 Re7 Bg8 Rh3 Na6 b8B Ba5 Bd6 Nc7 Be2 f1B Bb2 c1B Re8 f2 Bb4 Ne6 Nf3 g1Q Bd4 Nhf4 Nh2 Qg3+ Bf3 Ng5 Ng4 Qa8 Rh4 Bh3 Qh1 f1Q Rb1 a1R Rd8 a2 Qg2 Qh1 Rc8 Qgh2 Kf2 Qb8 Nb3 Rc7 Rb2 Rb1 Na1 Rc4 Be1 Rc7 Rb7 Rb6 Bb4 Ra6 Rb6+ Be6 Nf6 Re8 h8R Bg8 Rd8 Re4 Ng4+ Be6 Bf6 Rec4 Rhe8 Bg8 Rc8 Nh5 Bd4+ Kh7 Red8 Qd6 Bd1 Qh6 Qa8 Nf4 Nf6+ Kg6 Bf3 Qh8 Rg4 Nd5 Re4 Nf4 Ng4+ Kh7 Bdc5 Nfe6 Bd2 Rc3 Ra4 Nf4 Bd4 R3c4 Bb4 Qg2+
nB5q/2BPp1NQ/1B2bKRN/2n3pq/2b1rn1R/P4nr1/3R3r/k5bB w - - 0 1 illegal: Other
1R2n3/1Bqp3N/1Nqn4/bB2Q1Pb/5Rb1/1nR1p2K/r1rP3R/kBrr4 w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 b5 a4 b6 a3 Bb2 axb2 Nh3 cxb6 Ng1 b5 Be2 b4 Ba6 Qc7 Bf1 Qd8 f4 Kf7 Kf2 b5 c4 h5 a4 e5 g4 b3 Kg2 b4 f6 Ke6 a5 e4 c5 Kd5 c6 e3 g5 h3+ Kh2 h4 f5 Ba6 c7 Nc6 c8B Nd4 f7 Nf6 Bb5 Ne8 Qg4 Qc7+ Qf4 Ra7 Bf1 Be2 f6 Kc4 Bg2 Bh5 Nc3 b1B a6 b2 Bc6 Kb3 Na2 Bf5 Nf3 b1N B8b7 Kb2 Qe5 b3 Bb5 Nc3 Rac1 Bfg4 Nb4 Ne4 Rc3 N4d6 Nd5 Be7 f8R Bd8 f7 Rg8 Ne1 Ka1 Nf6 b2 Nh7 b1R Nd3 Rc1 Nc5 Nb3 Na4 Rg6 Rh8 Rf6 f8R Rff1 Rf7 Rc2 Nb6 Rfc1 Rff1 Ra8 a7 Rd1 Kg1 h2+ Kg2 h3+ Kg3 Rdc1 Rf4 Rd1 Rhf1 h1Q R1f2 Qhc6 Rh2 Rc8 a8B Ra2 B7a6 Rc1 B8b7 Rcc2 Bd3 Rc1 Bb1 Rcc2 Rg2 h2 Bb5 h1R Re2 Rd1 Rh2 Qb8 Nd5 Ba5 Nb6 Qbc7 Kh4 Nf6 Rd8 Nfe8 Kg3 Ra8 Rb8 Rcc1 Kh4 Rac2 Kg3 Bb4 Kh4 Raa2 Kg3 Ba5 Kh4 Be2 Kh3 Beg4+
2qr1b1r/q1PBBNqp/1b1B1Pb1/1B5k/1r1KR2r/n4p1R/7N/n2Q1R2 w - - 0 1 illegal: No possible last move
3N3Q/1BpKb3/2N2BnN/1Pnb1NP1/q2r1Rr1/4rr2/k1p1q1R1/1q1b2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 e4 h5 g4 f5 b3 c3 b6 h3 b7 h4 g5 a4 d5 a3 d6 a2 d7 c2 Ke6 f3 e5 h2 Bf4 f2 Bc4 f1Q Ne2 h3 Nd2 Ka3 b4 Ra4 b5 Na6 b8R Be7 Rc1 a1Q Nb3 Qe8 Nbd4 Rh4 Nc6 Rg4 Rg1 h1R Bd5 h2 Rg2 Rd4 Ng3 Qb1 Bd2 f4 Nf5 f3 Nh6 f2 Bc3 Qc4 Qe1 f1R Qh4 Rf8 Rcg1 Qa4 Qh5 Bb7 d8N Rf3 Qh3 Qh5 Kd7 Ba8 e6 Nc5+ Kc8 Qe8 Be4 Ka2 Qh4 Bf6 e7 Qh5 e8N Be7 Ng7 Re3 Na7 Bd5 Ngf5 Qe8 Nc6 Rf3 Rc1 Re1 Rb6 Re2 Rcg1 h1B Qh2 Qh5 Qe5 Ree3 Qh8 Rb4 Bf6 Rd4 Rd2 Bg2 Rb8 Bf1 Rdg2 Be2 Ra8 Bd1 Ra5 Qa3 Ra4 Qh2 Rc4 Qa4 Rb4 Qg3 Rc4 Qe1 Rb4 Qe2 Rc4 Nb7 Kd7 Nc5+ Ke8 Be6 Nb8 Rd5 Rc3 Bf8 Rc4 Ne7 Rb4 Rd7 Bb7 Ng6 Nbc6 Be7 Rf4 Rd4 Nhf7 Nd3 N7h6 Bd5 Kd7 Nc5+
6Q1/kNp2rN1/1R1BPqK1/1b3nN1/b3NqR1/nb1B1n1p/2r1q2P/5Rb1 w - - 0 1 legal: proof: d4 b5 c4 e5 f4 exd4 a4 g5 axb5 gxf4 Na3 d5 Nb1 dxc4 Kf2 Kd7 Kf3 h5 Ke4 a5 Kf5 f3 b4 h4 e4 c3 g4 h3 b6 Kc6+ Ke5 Kb7 g5 f5 g6 f4 b5 c2 g7 a4 Qd3 a3 Qc3 f2 Qb2 f3 Qb3 a2 Bd3 f1Q Bd2 c1Q Bf4 f2 Nd2 Bd7 Ngf3 Bc5 Rg1 Ne7 Kf6 Nf5+ Kg6 Nc6 g8N Rh7 e5 Rf7 Ng5 Qe2 Ne7 f1B Rg4 Qf8 Rb1 a1N Nde4 Ra2 e6 Qce3 Bd6 Nc2 Qa4 Kb8 b7 Qf4 Qc4 Ka7 b8R Qd8 Rb6 Na3 Qb4 Rc2 Re1 Nh6 Nf5 Qe7 Ng7 Nf5 Rb1 Qf8 Qe1 Qd8 Qg3 Ne5+ Kh5 Nf3 Kg6 Bc6 Re1 Bd5 Ra1 Bb3 Qg1 Bg2 Rf1 Qf6+ Kh7 Ra2 Be7 Bc2 Rb8 Rf8 Ng3 Nd2 Ne8 Qfe3 Rh4 Qe1 Nf7 Bd5 Ne4 Qc1 Qg8 Bcb3 Ng7 Rc2 Nfg5 Qe2 Rg4 Rf7 Bf8 Bdc4 b6+ Ka6 b7 Nf3 Bd6 Ka7 Rd1 Bb5 Rf1 Qe5 Kg6 Qcf4 Rc8 B3a4 b8N Bb6 Nd7 Qf6+ Kh7 Bb3 Ndc5 B3a4 Rb8 Bb3 Nb7 B3a4 Na5 Bc5 Bc4 d3 Rb6 d2 Bd3 Bg1 Nb7 d1B Be7 Rc6 Bb4 Bdb3 Bd6 Qfb2 Kg6 Rc2 Qe8 Qbe5 Qg8 Qf6+
R1n1K1Nb/nrp1R1Pq/2q2N2/2P1BB2/kq2Rn2/4r3/1q1pb3/rB2BQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 d4 exd4 Qd3 g6 Qf5 g5 axb5 gxf4 g5 Qf6 Qh3 Qd8 Qg4 hxg4 Kf2 d5 b4 Kd7 h4 f5 e4 a5 c4 g3+ Kf3 g2 c5 d3 e5 d4 b6 Kc6 b5+ Kb7 g6 a4 h5 a3 e6 a2 e7 Nc6 e8B Ra3 h6 Bg7 h7 Qf6 Nc3 Nge7 Nh3 g1R Rb1 a1Q Rb4 Qb2 Bd2 Qh4 Bg2 Rga1 Re1 Rb3 Bd7 Re8 h8B Qg4+ Kf2 f3 Re6 Bf6 Ng5 f4 Nf7 Qh5 Re3 Qh7 Bdh3 Bg4 Nd5 Qa3 Re1 Nc8 Nh6 Re7 Ng8 Qb2 Re2 Re8 Bh1 Bh5 Be1 Re5 Kf1 f2 Be4 Bf3 Nc3 Re7 Nd5 Bg4 Kg2 f1N Ra4 Ng3 Ra8 f3+ Kf2 d2 Bb1 d3 Ra4 Be5 Ke3 Nh5 Ke4 f2 Rd4 Bf3+ Kf5 d1Q Rc4 Rg7 Ke6 f1Q Bf5 d2 Rh4 N8e7 Kd7 Qh1 Ke8 Nc8 Rg4 Bf6 Re7 Rb4 Rc4 Nf4 Rd4 Qdb3 Rc4 Ka8 b7+ Ka7 b6+ Ka6 b8R Ka5 b7 Be2 Ra8+ N6a7 Rd4 Ka4 b8Q Ba6 Qb6 Qc4 Qe6 Rb7 Qe2 Qcb4 Qf1 Be2 Rc4 Qe4 Rd4 Qe6 Re4 Qa6 R7e5 Rd7 Re7 Qc6 Bg7 Bh4 Bd4 Bf6 Be5 Bh8 g7 Rd8+ Kf7 Rd7 Ndf6 Rd3 Kf8 Re3 Kf7 Qa6 Ke8 Qc6+
n1bR4/qp1nN2r/B6b/rpnNb1BK/Nr2kr1Q/P5P1/1B2N1q1/2R5 w - - 0 1 legal: proof: h4 g5 b4 gxh4 c4 e5 f4 d5 fxe5 dxc4 b5 f5 b6 axb6 Kf2 Kf7 Kf3 Ke6 d4 Kd5 g3 h5 e3 c5 e6 f4 e7 h3 e8N h2 a3 h4 Qb3 h3 Ne2 Bg7 Qa4 c3 Qb4 c4 Bb2 c2 Bc1 c3 Bd2 c1B Qe7 c2 Nd6 Rh7 Nf5 Na6 Kg4 f3 Qh4 f2 Bc3 Ke4 d5 Be5 d6 Nc7 d7 Ra5 Bb2 Na8 Ne7 Qe8 Rg1 h1R Rg2 h2 Nbc3+ Kd3 e4 Bh6 Na4 c1N Rb1 Nb3 Rc1 Nc5 Rg1 Qd8 Kh5 Qc7 d8B Qb8 Rg2 Qa7 Rg1 Bh8 e5 Nf6+ Kg6 Nfd7 e6 Be5 Kh5 Bd4 Bh3 Ke3 Rgd1 f1R Bf5 Rhg1 Bd3 h1Q Ng6 Qh2 e7 Qg2 e8N Bh8 Nc7 Be5 Bg5+ Rf4 Ba6 b5 Rf1 Kd3 Ne7 Rb4 Rf8 Rf1 Rd8 Rff4 Ncd5 Ke4
2b2r1B/1pkN1qRB/2Pn1Bq1/R1nR1N2/4B3/2r1b3/p2Pb1r1/1Qn1bK2 w - - 0 1 illegal: No proof kernel
B7/RpP3N1/p4Bbn/1Q1qR1R1/N1rrbP1b/N2nrq2/b1nk2K1/6R1 w - - 0 1 illegal: No possible last move, all moves rejected
2Nk4/P2BqRR1/Q5b1/pn3P1K/2bn3n/3q2r1/r2r1pN1/bB1nBB1R w - - 0 1 illegal: No proof kernel
3nBrk1/p1rq4/PR2P2p/BB4bq/Q5nR/1KNb1R1n/2rR4/qnN5 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 a4 b5 d4 f5 Kd2 Kf7 Kc3 h3 e4 h6 g4 h2 a5 f3 c6 b4+ Kb2 f2 c7 c3+ Kc2 f4 a6 f3 d5 Qd7 d6 Rh7 e5 Be7 g5 Nf6 g6+ Kg8 g7 Ng4 Bb2 Nc6 Bb5 f1Q Kb3 f2 Ne2 c2 Nbc3 c1R Rb1 Rc2 Nc1 Bg5 e6 Qh3 Qd4 Bb7 c8R+ Nd8 Rb8 Be4 Rb6 f1Q Ra1 Qfd3 Ra3 Qdf1 Ba1 Bd3 Qf4 Qe8 d7 Qhh5 Qc4 Rc8 Qd4 Rc7 Qe4 Rh8 Qc6 Kh7 g8B+ Kg7 Bf7 Rf8 Bg6 Kg8 Bb2 Qe7 Be8 Qg7 Nb1 Qd1 Bc3 Qf6 Be1 Qa1 Nc3 Qd2 Ra4 Qd1 Rf1 h1N Rf3 Nhf2 Bd2 Nh3 Be1 Nb7 d8R Qd2 Rd4 Nd8 Ra2 Nh2 Rh4 Ng4 Ka4 b3 Ka3 b2 Kb3 b1N Qc4 Qh2 Qa4 Rg2 Rd2 Qd6 Bg3 Qe7 Bd6 Qg7 Bb4 Qd7 Ba5 Rh2 Rd1 Ra2 Rd2 Rc2
1b2R2N/pb1PrQ2/B4N2/3KBb1q/P2n2Rn/2r2N1k/NB1pr3/r3q1n1 w - - 0 1 illegal: No proof kernel
n2r1B2/R1n2Qr1/2nRKpn1/R2N1N2/BBP1p3/3Bbn1P/1r3nb1/k3q3 w - - 0 1 illegal: No proof kernel
3Bk3/Kq1bn3/B1r2p1b/R5QP/nP1nB1p1/Bb1bb3/b1R4N/4r1NR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 b4 d5 e4 a5 c4 a4 h4 g3+ Kf3 d3 e5 g4+ Kg2 a3 h5 d2 e6 f6 b6 a2 b7 d4 e7 d3 c5 Bd7 c6 Qc8 c7 Bh6 Be2 f3+ Kf1 f2 Bf3 Na6 b8B Qb7 c8B Nc5 Ba3 Na4 Bc7 Ra6 Be4 Rc6 Qc1 d1B Qg5 d2 Bd8 Bb3 Ke2 d1B+ Kd3 f1B+ Kd4 g2 Nd2 Bd3 Nf1 Bf7 Nh2 Bdb3 Rc1 a1N Rc2 Ba2 Bf5 Bfb3 Be4 Qa8 Ba6 Qb7 Rc4 Nc2+ Kd5 Kf7 e8R Nd4 Re5 Rh7 Rf5 Ke8 Re5+ Re7 Rf5 Rc8+ Kd6 Rc7 Ra5 Re5 Rc2 Ne7 Bc6 Re1 Be4 Qb5 Rb2 Rcc1 Rc2 Qd5+ Kc7 Qf7 Ne2 g1B Kb7 Be3 Ka7 Qg7 Ng1 Qf7 Rf2 Rc6 Rc2 Qd5 Bg2 Qb5 Be4 Qb7+
2n2N2/Bkp5/nrn2N1n/r2P4/QPbn3R/Nn3Kbr/3qR2p/2N2B1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 h5 b4 a5 g4 f5 d4 a4 g5 c3 e5 h3 g6 h4 b6 Kc6 e6 h2 e7 a3 e8N a2 g7 h3 b7 f3 Bd2 c2 Nf6 c1N Bc4 f4 Bf7 Ne7 g8N Nd3+ Kf1 f2 Ke2 f1N Be1 Ng3+ Kf3 Ne2 Bh4 Be6 Qc1+ Nc5 Na3 Ra5 Bg5 Nc8 Nh5 Rh6 Qc2 Bd6 Bf6 Bc4 Rf1 a1N Re1 Nca6 Ng7 Nb3 Ne6 Kb6 Bg5 Nc6 b8R+ Ka7 Ra8+ Kb7 Nf6 Qd7 Nf8 Qd8 Ke4 f3 Be3 f2 Kf3 f1N d5 Nfg3 Bg6 Nf5 Ba7 Bg3 Be8 Rg6 Qa2 Nh6 Qa1 Nf4 Ne2 Ne6 Nc1 Qe7 Re2 Qh7 Rd1 h1R Rd4 Qe7 Rh4 Qc5 Bd7 Qd4 Qa2 Qd2 Qa1 Nec5 Bf5 Ne6 Bd3 N8e7 Re8 Nc8 Re1 Rh2 Rh1 Ned4+ Ke4 Rf2 Bf1 h2 Qa2 Rf3 Qc2 Na1 Qa4 Nab3 Re6 Bf2 Re7 Re3+ Kf4 Rh3+ Re3 Bg3+ Ke4 Bf2 Re2 Bg3 Nh5 Rd6 Nf6 N6e7 N8h7 Rb6 Nf8 Qe1 Ke3 Nec6 Ke4 Qd1 Ke3 Qd2+ Ke4 Ndf5 Kf3 Nfd4+
1q2B1k1/P2R4/1p2n2B/1bN1RrP1/2n1bRnb/n1Np4/1nnNK3/1Q3r1R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 Kf7 a4 e5 f4 h5 g4 d5 c5 b3 f6 b6 a5 e4 f5 d3 a6 e3 c6 h3 a7 e2 c7 h2 Ba3 b2 Qb3 d2+ Kf2 e1N Bh3 d1N+ Kf1 h4 Nd2 b1N Qc3 d4 Qc6 Na6 Ngf3 Rh5 Bb4 Ne7 Qd6 Nd5 Ne4 Nc2 Bd2 Nba3 Ke2 Be7 Qb4 Kg8 Qb1 Bd7 c8R Nb2 Nc3 Nc5 Bh6 Ne6 Nd2 Nde3 Rc7 Qb8 Bf1 Bc6 Rd7 h3 Ra2 Nec4 f7+ Kh8 f8N Kg8 f6 Bb5 Bg2 Rf5 Be4 Rf1 Bg6 Rf5 Ra1 Bd8 Re1 h1N Be8 Nf2 Rh1 h2 f7+ Kh8 Ra2 Bh4 g5 Ng4 Ra1 Nc5 Re1 h1B Ne6 Be4 Rh1 Nb7 Nc5 Nd8 Re1 Ne6 Rh1 Kh7 f8R+ Rf7 Rd8 Rf1 Rf4 Kg8 Rd7 Qc7 Bh5 Rf8 Be8 Rf5 Ra2 Nd3 Rb2 Qb8 Rb4 Ndb2 Ra4 Bbc6 Ra5 Ba4 Na6 Bac6 Re5 Bb5 Nc5 d3+
1QK5/B5b1/1rBr1k2/brB3q1/2b1P1R1/N2p3p/2r1NNPN/1rnR1n1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 f5 Kc4 h5 Kd5 a5 c4 d3 b4 f3 e4 d2 c5 h3 b6 f4 b5 h4 c6 h2 b7 h3 b6 f2 c7 f3 Bc4 f1R Qe1 d1R+ Qd2 f2 Ke5 d5 Ne2 d4 Qa2 a4 Bd3 a3 Qb2 a2 Be3 Na6 b8B Be6 b7 Nc5 Nbc3 Nf6 Ba7 Rh6 b8N Nb3 Nd7 Bg7 Bb5 Rb8 Bc6 Nd5+ Nf6 Nc1 c8N+ Kf7 Qb1 Rb5 Nb6 d3 Qb2 Rd2 Nc4 Rc2 Bec5 Ne3 Na3 Bc4 Nd1 Qg8 Rb1 a1B Kd6 Rg1 Kd7 f1R Qb3 Bc3 Ng4 Rff6 Ndf2 Ba5 Qb2 Re1 Rf1 h1B Nh2 Rfg6 Qb3 Kf6 Qb4 Qd5+ Kc8 Qg5 Qb2+ Kf7 Qe5 Rd6 Qg3 Kf6 Ra1 Rd4 Qb8 Rd6 Rb1 Na2 Ra1 Reb1 Rd1 Nc1 Ra2 R5b4 Rb2 Rb7 Rb6 Nf1 Ra6 R7b5 Rb6 Qd2 Rb7 Qg5 Rf7+ Ke5 Rf4 Re6 Rg4 Kf6 Bb7 Rdb6 Bc6 Rd6
1n1N2N1/b1r1r2r/R4B2/1pP1BB2/p1b5/rbb2P2/1N2QnR1/2qrK1Nk w - - 0 1 illegal: No possible last move, all moves rejected
2R1n2R/2r1q2B/B1pBp3/4P1b1/bq1PbN1k/1Q1bR1r1/1nB5/Nbb1K3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g5 Qc2 d6 Qf5 gxf4 g5 d5 Qg4 hxg4 cxd5 Ra6 Kd1 Ra5 Ke1 Ra8 h4 b5 d4 f5 a4 Kf7 e4 Kg6 a5 Kh5 e5 b3 g6 b2 d6 g3 g7 c6 d7 b4 a6 g2 a7 f3 Bf4 b3 Be2 Rh7 Rh3 Nf6 g8B Bh6 Rg3 Ne8 Ba6 f2+ Ke2 f1B+ Ke1 Bd3 Bgc4 Bg5 Nh3 g1B Nd2 b1B Re3 b2 Nb3 e6 Bcb5 Qe7 d8Q Be4 Qb6 Nd7 Ba4 Nc5 Bd3 Ba6 Qb4 Rb8 a8B Bb5 Bb7 Rf7 Bg3 f4 Ba6 f3 Nf4+ Kg4 h5 f2+ Kd1 f1B h6 Rg7 h7 Rb7 h8R Rc7 Ke1 Rg6 Bc2 Bfd3 Bh4 Bh2 Ra3 Rg7 Na1 Rg8 Bab3 Na4 Ba2 Bg1 Qb3 Rg6 Rh3 Be3 Rf3 Bc1 Re3 Nc3 Ra5 Ba4 Rd5 Nd1 Rd8 Bf6 Bg5 Rg7 Bh6 Kh4 Rc8 Rg3 Bf8+ Qh7 Bd6 Bg5 Rf8 Qe7 Qb5 Kg4 Bd5 Kh4 Qb3 Ba2 Bdc4 b1Q Bd5 Qb2 Rg8 Bb1 Rh8+ Bh7 Be4 Qa3 Bf3 Nb2 Bh5 Bhe4 Bg6+ Kg4 Bh7 Kh4 Qb5 Qc5 Qb3 Qb4+
2n2N2/5K2/1p1qBNnR/1R1nPRpb/7r/2QPb1kn/B1r5/B1n1nq1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 h4 Kf6 e4 Ke5 a4 f5 d6 g5 d3 c5 d7 c4 h5 b3 h6 b6 a5 b2 a6 c3 a7 f3 Kg3 f2 h7 f4+ Kh2 c2 Qf3 g3+ Kh3 g2 Kg4 Bc5 Kh5 Ne7 Ra5 Nbc6 Ne2 g1N Nd2 b1N Rb5 Na3 Bh3 f1N Nd4 Ne3 Bb2 c1N Ba1 Nac2 Qg2 Qf8 d8R f3 Rd5+ Kf4 Bd7 Rb8 a8B f2 Re5 Na7 Bd5 f1Q Ba2 N3d5 Ne6+ Ke3 Qg4 Kf2 Qh4+ Kg2 Qe1 Q8f4 Nf8 Be3 Kh6 Nh3 Kg7 Ng6 Bg4 Bd7 Bf5 Rc8 Kf7 Ne2 Qc1 Ne1 Qb2 Rc2 Qc3 Nc7 Rec5 Kg3 Rd5 Qd6 Re5 Rg8 h8R Nc1 Rh7 Rh8 Red5 Bf2 Bg4 Bc6 Be6 Nc8 Rf5 Be3 e5 Bf3 Rh5 Nd5 Ne4+ Kg4 Nf6+ Kg3 Rh7 Bd1 Rg7 Rh6 Rh7 Rh4 Rh6 Bh5
2BK2nk/1n4N1/p2B2b1/1Rbnn2N/3p1BP1/1P1r2RQ/1Nr1q2n/1N4nq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 f5 Kc4 Kf7 Kd5 Kg7 c4 d3 e4 f3 g4 a6 c5 d2 b6 f2 e5 f4 b7 h3 c6 h4 c7 f3 e6 h2 b3 h3 e7 Nc6 Kd6 Qe8 b8B Ne5 Bb5 f1N Ba7 f2 Bc4 Ne3 Qe1 d1N Qc3 f1N Bb8 Nd5 Bd3 Nb2 Bf5 Nc4+ Kc5 Na5 Kd6 Rh7 Bf4 Kh8 Ne2 Rh4 Rg1 h1Q Qd3 h2 Ng3 Rh3 Nh5 Rf3 Qc3 Rd3 Rg3 Bb7 c8N Bc6 Qb2 Ra7 Qe2 Rc7 Qe3 Bb5 Ra2 Rc2 Nb6 Qe4 Ra4 h1N Rd4 Nf2 Na3 Ndf6 Qd2 Qh1 Nb1 Ng6 Rd5 Nh3 Qh2 Ng1 Qh3 Nh2 Nc4 Bc6 Kc7 d6 Re5 d5 Nb2 d4 Rb5 Be4+ Kd6 Nd5 Bc8 Nh4 Bc7 Bg6 Bb8 N4f3 Ke6 Qd8 e8N Bc5 Neg7 Qb6+ Kd7 Qe6+ Kd8 Qe2 Bbc7 Ne5 Bd6 Nb7+
B1R1r3/QnK1pbbP/3N4/rbqpk2N/1n2Bn2/3bR2P/4N3/1NB1b2n w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Ke2 Kf7 a4 Ke6 f4 d5 c4 g5 h3 b5 h6 g4 f5+ Ke5 a5 e3 Kd3 g3 a6 g2 c5 b3 f6 b2 a7 b4 c6 b3 h7 e2 f7 e1B c7 Be6 c8B Qa5 Ra4 Qc5 Rc4 Nh6 Rc3 Na6 Bb7 Nf5 Ne2 g1N Bg2 Bg7 f8N Nd6 Be4 Bf7 Ne6 Rhe8 Bc6 Nb7 N6f4 Qb4 Nh5 Qc5 Nd2 b1B+ Qc2 Ba2 Nb1 b2 Qa4 Bb3 Qa1 Ba4 Rc2 Rab8 a8N Bb5+ Rc4 Rbd8 Nb6 Ra8 Nc8 Ra7 Nd6 Raa8 Kc2 d3+ Kb3 Nb4 Qa7 d2 Rc3 d1N Re3 Nf2 Rh2 Bd3 Ka4 Nh1 Rg2 Bf6 Rg8 Bg7 Na3 b1B Rf8 Ba2 Nb1 Bac4 Rh8 Nd8 Rg8 Bb5+ Ka5 Qc3 Kb6 Qc5+ Kc7 Nb7 Qb8 Ra5 Qa7 Nf3 Rf8 Nh4 Rh8 Ng6 Rf8 Rb8 Rc8 Nf4 Re8 Nd8 Rf8 Qd4 Ba8 Nb7 Rh8 Ng6 Rd8 Nf4 Rd7 Rh8 Rd8 Re8 Rc8 Qc5+
3rK1R1/3P4/2Nrn3/QrrN2qP/pn4N1/1BpqR2r/2b2bRR/kr2B3 w - - 0 1 illegal: No possible last move, all moves rejected
r3n3/Bq1P2Bq/3r4/K2r2pP/R2QB2p/Rn1N4/BRb2r1k/b2r1r1N w - - 0 1 illegal: No proof kernel
N1k1rb2/2PR4/r1brb2N/3Q2K1/pq1pB2r/1RN1Bn1P/3n1r2/1b3NB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 g5 c4 d5 e4 Kd7 c5 f5 e5 f3 h3 g3 b6 a4 b7 f4 b5 g4 b6 g2 Ra2 d3 Ne2 g1R Qc2 f2 Qc4 g3 Nbc3 f3 Ke3 d2 Kf4 d1R Bg2 f1B Be3 f2 Rb2 Nf6 Rb3 Qe7 Kg5 Rh4 Be4 g2 Ng3 Nc6 b8B Ra6 b7 Bd3 Ba7 Rge1 Nf1 Nd4 b8N+ Kd8 c6 Qb4 e6 Bb1 Rh2 g1R+ Rg2 Bd7 e7+ Kc8 e8N Be6 c7 Rh1 Rg4 Rh2 Nd7 Re2 Ng7 Nf3+ Kg6 Rd4 Nf5 Rg2 Nh6 Rd3 Nh2 f1B Bad4 Rgf2 Nb6+ Kb7 Bc5 Bg2 Na8 Kc8 Nf1 Bh1 Bd6 Rdd2 Bh2 Rd1 Bg1 Bg2 Bc2 Ne4 Qb5 Ned2 Be4 d4 Qd5 Rc1 Kf6 Rd6 Rg7 Ra6 Nd1 Rcc6 Rd7 Rd6 Nc3 Re1 Ng3 Bf1 Kg6 Bb5 Nf1 Bc6 Bf5 Rg2+ Bg5 Rf2 Kf6 Ree4 Be3 Re5 Bc2 Ree4 Kg6 Bf7+ Kf5 Re7 Be4 Be6+ Kg6 Re8 Kf6 Ne1+ Kg5 Nef3+
3qBR2/1P5Q/p1R2BN1/N2B1qNr/p1n2qBq/bKn1r1q1/3P4/kb3q2 w - - 0 1 illegal: No possible last move, all moves rejected
rqRQ4/kPNbnB2/pbPrB1bp/3bBN2/8/2N4q/1K1b1R2/b4nN1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Kd2 d5 g4 Kd7 f4 Kc6 c4 Kb6 Kc2 e5 b4 e4 b5 h6 g5 a6 f6 h3 f5 d3+ Kc3 a3 f7 a2 g6 d2 f6 h2 c5+ Ka7 c6 e3 g7 e2 Kb2 e1B Qb3 d1B Nc3 d4 Rb1 d3 Bf4 d2 Bc4 Bc5 f8N Bc2 f7 d1Q Ne6 Nd7 f8N Ne5 Nd4 Qf3 Nf5 Bd2 Be6 Bd7 Qd5 Ng4 Be5 Ne7 g8B Ne3 Bgf7 Qb8 Rf1 Bb6 Rf2 Qh3 Qd3 Be8 Qd8 Rg8 Bc4 Rg7 Ne6 Rg6 Nc7 Rd6 Bce6 Be4 Nf3 Bb1 Rd1 h1B Ng1 Bd5 Re1 Nf1 Re4 Ba5 Rg4 Bd3 Rg8 Bd7 Rh8 Be2 Re8 Bh5 Rh8 Bg6 Rg8 Qc8 b6+ Kb8 b7 Ka7 Qe8 Bb6 Rf8 Ng8 Qe7 Qe8 Qf6 Qb8 Qh8 Ne7 Rc8 Bh1 Qg8 Bd5 Qd8 a1B+
k4BnQ/1pb1K3/3N1B2/2n2Pq1/6rn/1pqnnr1N/bPnR2R1/BN2N3 w - - 0 1 illegal: Other
Rb1Nn1b1/7N/Bk2n3/bn2b2Q/RB1pP1q1/2PKR3/2N1Rrp1/1r4nr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d3 h4 g5 e4 f5 b4 d5 b6 Kd7 b7 Kc7 h5 a5 h6 a4 h7 f3 b5 f2 Rh2 f4 Rh6 a3 Qf3 a2 Rg6 g3 Rb6 g4 Qh1 f3 Qh3 Bd6 Qh4 g2 Qg3 Be6 Be2 f1N+ Kc3 f2 Ba3 d2 Bc1 d1N+ Kd4 Qd7 Qd3 Nh2 Qb3 f1R Qh3 Na6 b8R Nc3 Nf3 g1B+ Be3 g3 Ng5 g2 Na3 Ra7 Ra8 Nf6 Qh6 Rb8 h8N Ne8 Nh7 Nc5 Qh5 Bg8 Nf7 Qg4 Nd8 Rf8 Re1 a1B Ra6 Rb6 Bf2 Ne6+ Ke3 Rab7 Ra4 Nf3 Bc4 d4+ Kd3 Bgh2 Re3 Bhe5 Be1 Rf5 Bd5 Rb8 Bb7 Rf6 Ba6 Rh6 Qg5 Rh1 Qh5 Ng1 Bd2 Rc6 Be1 Rc4 Bd2 Rb4 Be1 Rb2 b6+ Kd7 b7 Kc7 Bd2 Rb1 Be1 Rc8 b8R Bb2 Rbb4 Nb5 Bd2 Bc3 Rb2 Ba5 Bb4 Kb6 Ra2 Rc7 c3 Rf7 Rae2 Rf2 Nc2 Bb8
N1b1b3/n1BnK3/q2NpB2/p3RbQ1/3PPnr1/n1rk2r1/B3RBb1/4R3 w - - 0 1 illegal: No proof kernel
1rN5/1b2Rr2/B2P1kbb/n6p/Q1B1rBR1/NK3p1B/1nN3Pq/1n2nr2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Ke7 a4 c5 d4 f5 Kd2 b5 Kc2 h5 d6+ Kf6 a5 h3 a6 c4 d5 c3 a7 b3+ Kd3 c2 Kc3 b4+ Kb2 f3 d7 f2 d6 f4 Bc4 f1R Rh2 f3 Qd2 Ne7 Qe2 Nd5 Na3 Nc3 Qd1 Bh6 Bf4 c1N Ne2 Rh7 Nd4 Nc6 Ndc2 Rb8 a8B Rf7 Bb7 Re1 Bba6 Bb7 Rh1 h2 Rg1 Qg8 d8N h1R Rb1 Re3 Re1 Rf1 Re2 Qg3 e5+ Kf5 e6 Qh2 e7 Kf6 e8B Re4 Bd7 Na4+ Ka1 Nb2 Bh3 Ncd3 Re3 Na5 Nc6 Ne1 Ne7 Nc6 Nc8 Nbd3 Nb5 b2+ Ka2 b3+ Ka3 Qh1 Ra1 b1B Ra2 b2 Kb3 Qg1 Ra4 Qh2 Nba3 Rd4 Re7 Re4 Ne3 Bc2+ Ka2 b1N Rb4 Ba4 Nec2 Bb5 Kb3 Nb2 Bd5 Bd3 Bde6 Re2 Bec4 Bg6 Qd4+ Re5 Qe4 Nd8 Qc6 Re4 Qa4 Nc6 Rb5 Ra8 Rg5 Rb8 Rg4 Na5+
1N1rRb1N/n1Rrb1pp/NB1r4/2nN1brB/3Q2PP/7k/b3K3/1B1n2q1 w - - 0 1 legal: proof: d4 a5 b4 c5 e4 cxd4 a3 f5 a4 b5 axb5 fxe4 Ba3 axb4 Bb2 Ra4 Bc1 Ra8 g4 Kf7 c4 Kg6 f4 d5 c5 e5 b6 d3 h3 d4 b7 d2+ Kf2 b3 f5+ Kg5 f6 Kh4 c6 e3+ Kf3 d3 c7 e2 f7 e1B Ba3 b2 Nc3 b1B Ne4 Bf5 c8B Nf6 Ne2 Qb6 Bc5 Ba2 Be6 Ra6 Rc1 Nc6 b8N Nd7 N2c3 Na7 Nd5 Bf2 Qa4 d1R Qd4 d2 Ke2 Be3 Bg2 Bg5 Re1 Bge7 Bf1 Qb1 Bb6 Nc5 Bd7 Ra5 Be8 Rb5 Nf2 e4 Nd3 e3 N3b4 Kg3 h4 Qa1 N4a6 Kh2 Kf3 e2 Bg2 Rg8 Kf2 Ra5 Be4 Kh3 Bb1 Rb5 Bc7 Rb7 Bb6 Rd7 Ke3 Nb3 Rc7 Nc5 Rg1 e1R+ Kf2 Re3 Re1 Rb3 Re5 Rb5 Ke2 Qc3 Re6 Qg3 Re4 Qg1 Re5 Bd6 Re4 Bfe7 f8N Rh8 Bh5 Ra5 Ne6 Rhd8 Nf8 Rb5 Ng6 Bf8 Re6 Bde7 Re3+ Qg3 Rc6 Be4 Nc3 Na4 Rf6 Rg5 Rc6 Bf5 Qb4 Bd6 Nh8 Nc5 Re8 Qg1 Rc7 Bde7 Qc4 Rf1 Qd5 Rf4 Qc4 Rfd4 Qb4 R4d6 Nd5 d1N Qa4 Kg2 Qd4 Kh3
B1Q2R1B/bNR1P3/1NR2N1p/1kbbn3/r5rp/b1Kn4/3r3P/3qnr1R w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Qb3 e5 Qg3 exf4 Qh4 gxh4 e4 Kd7 g4 a5 d4 f5 Kd2 c5 b4 f3 e5 c3+ Kd3 c2 g5 c4+ Kd2 c3+ Kd3 f4 g6 f2 d5 h6 g7 f3 b6 a4 b7 a3 b5 a2 d6 Ne7 g8R Ng6 b6 Kc6 d7 Na6 b8Q Bb7 e6 Kb5 Bb2 c1B Ne2 c2 Nf4 Be3 Qc8 c1B Rg7 Rg8 Bg2 Nc5+ Kc2 f1N Nh5 f2 Nd2 Ra4 Nc4 Nd2 Re7 f1R Bh8 Ba8 b7 Ba3 Rc1 a1R Nf6 Ne5 Bd5 Ndf3 Rg7 Qc7 d8N Ncd3 Kb3 Ba7 Nb6 Ra2 Rc4 Qd6 Kc3 Nc5 Rf7 Be7 Rf8 Raf2 b8R Ne1 Rb7 Rg4 Rc7 Qd7 Bf3 Qd1 Bb7 Bd6 e7 Rd2 Bg2 Be4 Bf3 Ncd3 Bg2 Bh7 Ba8 Bg8 R4c6 Bdc5 Nb7 Bd5
nN1n4/pNb1b2r/rN1q1P2/6R1/2K1r2p/1P2bb1N/r1BB1RQ1/k2n2R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Kf6 c4 e5 g4 h5 c5 d5 b6 h3 f5 d3+ Ke3 d4+ Kd2 h4 b3 h2 b7 e3+ Ke1 d2+ Ke2 e4 c6 Ke5 g5 Na6 b8R Be7 g6 Qd6 c7 Bb7 c8N Rh7 f6 Nc7 g7 Nh6 g8N Nf7 Ba3 Nd8 Qc2 d1N Nb6 d3+ Ke1 Kd4 Bg2 e2 Kd2 e1B+ Kc1 e3 Be4 e2 Nc3 Bg3 Kd2 Bc6 Nh3 Bf2 Bg6 Bf3 Rg1 h1R Ra2 Rh2 Nca4 Rg2 Nc5 e1B+ Kc1 Ba5 Nb7 Rh2 Bb4 Be3+ Bd2 Re2 Rc8 Rb8 Bf5 Na8 Rc5 Rc8 Bg6 Rc6 Rcg5 Rg2 Rb2 Rg4 Kb1 Re4 Ka2 Rc5 Ka3 Rc6+ Bb4 d2 Ka4 Nf2 Kb5 d1R Bd2 Ra1 Bf5 Nd1 Ra2 Bf8 Qb2+ Kd3 Ne7 Rc2 Nc6 Be7 Nb8 Rc6 Nd5 Bc7 Qc2+ Kd4 Bg6 Ra6 Nb6 Rg4 Rb2 R1a2 Qc6 Rf4 Bc2 Re4 Rb1 Nb2 Rbf1 Nd1 Rf2 Rb2 Bc1 Rba2 Qd5+ Kc3 Bd2+ Kb2 Qc6 Re6 Kc4 Ka1 Qe4 Re5 Qg4 Re6 Qg2 Re4+
nR5R/1B2qQ2/r1Nb2R1/2rq1B2/1NnKp3/n1P1R3/p2kr1P1/rb1n2B1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 Kf7 b4 Ke6 f4 Kd5 b5 a5 c3 h5 b6 e5 f5 a3 g6 a2 b7 d3 Ke3 Kc4 g7 d5 f6 a4 f7 h4 Qe2 d4+ Kf2 a3 Qb2 h3 Be3 h2 Bc1 e3+ Kf3 e2 Ke4 e1N Qd2 Qe7 Be2 Nc6 b8R Nc2 Bg4 Ra6 Rb6 Bf5+ Kf3 Nf6 g8B Ne8 Qe3 d2 Qe2+ d3 Bh7 d1Q Bf4 Nc7 Be3 Qe1 Qf2 d2 Ne2 Kd3 Nd4 Na5 Rg6 d1N Nc6 Nc4 Bg8 Rh5 Bb6 Bh6 f8R Na8 Rb8 Bf8 Bd5 Qe6 Be3 Bd6 Bd4 Rh4 Bh3 Re4 Qf1+ Re2 Bg1 Qh4 Qf2 Qhf6 Qa7 Qh4 Qf7 Qh7 Na7 Qh4 Bb7 Qhe7 Nc6 Bc7 Nd2 Bd6 Rb1 a1R Nf1 a2 Ne3 N2a3 Nc2 Kd2 N2b4 Bc2 Bf5 Bd3 Rh8 Bc2 Bc5 Bd3 Re1 h1R Bg1 Rh4 Rb3 Rd4 Rb1 Rd5 Rb3 Bb1 Rb2+ Kc1 Rb3 Rc5 Rb2 Rd2 Re3 Rc2 Ke4 Re2+ Nc2 Kd2 Rb3 Kc1 Kd3 e4+ Kd4 Kd2 Rb6 Ra7 N2b4 Ra4 Ba6 Raa5 Rbb8 Ra4 Bc8 Ra6 Bb7 Qd5+
Nb2qB1k/B2R4/1B1K1p2/1NrPR2P/bqqr4/1n2Qb1q/bpR5/1n5B w - - 0 1 illegal: No possible last move, all moves rejected
3k1nrn/2n5/B1p2R1R/KNn2Rp1/1bB3q1/Qb1r1r2/1Pr2Pq1/B2R2N1 w - - 0 1 illegal: Other
b2Q1Nr1/kN1BR3/1p1rqrB1/Nbb1b1B1/nrn5/6P1/R1qpP2N/1K6 w - - 0 1 illegal: No possible last move
2R2B2/n1b2R1r/P3bpQN/Rn1R1b2/1N2qq2/2qbp1q1/3rP3/3BBk1K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g6 Bh3 gxf5 Bf1 f4 Kf2 Kd7 Kg2 Kd6 h4 Kc5 a4 Kd4 h5 e5 d6 b5 d3 c5 a5 c4 d7 f3+ Kh2 e4 a6 g3+ Kh3 b3 h6 c3 h7 c2 Ba3 Ke3 d4 Kf2 d5 c1Q d6 e3 Rh2+ g2 Qd3 b2 Bc5 b4 Qd2 b3 Ra5 f6 Qd3 Nc6 Qg6 Qe8 Na3 b1B Nc2 b2 Nb4 Qe4 Rh1 Rb8 Kh2 Qc3 d8R Nd4 d7 Nb5 Nh3+ Ke1 Kg1 Ne7 Ng5 Bd3 Nf7 b1B Nh6 Nc6 Rh5 Rb7 Rd5 Bd6 Rf8 Bc7 d8B Nca7 Rf7 Be6 Bf8 Rb6 Bde7 Rd6 Kh2 f2 Bd8 Rg8 h8R Rg7 Bde7 Rd7+ Bd6 Rh7 Bg3 Qa3 Bg7 Qa1 Rc8 Qc3 Bf8 Rd6 Bh4 Bbc2 Kg3 g1Q+ Bg2 Qh1 Bh3 f1Q Bf5 Qhf3+ Kh2+ Q1f2+ Qg2 Q3g3+ Kh1 Qff4 Bg6 Qed4 Qe4 Kf1 Qf5 Qg5 Be1 Qg3 Qg4 Rd7 Be4 Qde5 Qg6 Rd8 Bf3 Bdf5 Be4 Bb1 Bc2 Rd7 Rc5 Rd2 Bd1 Bbd3 Rd5 Qee4#
1Q2r3/3B2bP/BKN1bR1q/1n1RRqB1/3N1bbp/2p2r2/P2q4/k1nB1q2 w - - 0 1 illegal: No proof kernel
Qb3B1R/RB2KP2/1R1N2br/r3p1p1/4b1nq/2Pb1k1N/4rrn1/q2B1B2 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 Ke3 Kg6 Kd4 Kh5 Ke5 d5 a4 b5 h4 e3 f4 d4 c3 b3 f5 b2 a5 d3 c6 e2 a6 e1R+ Be2 b4 c7 b3 f6 d2 f7 Rh6 a7 Ba6 c8B Nc6+ Kf5 e5 Ra4 Nf6 Ke6 Nb4 Na3 b1B Nc2 b2 Nd4 Nbd5 Qb3 d1Q Ra1 Bg6 Qa2 b1B Nh3 Bbe4 Bf1 g3 Bb7 Kg4 h5 g2 Ba3 g1R Nf5 Bad3 Nd6 Ne3 Rb1 Be7 Rb6 Rg2 Qa1 Kf3 Rg1 Rc8 a8B Rf2 Rg4 Rc5 Rg2 Rh8 h6 Ra5 h7 Ree2 Rg4 Ng2 Rh4 Rg8 h8R Ng4 R4h6 Qb1 Ra6 Bf8 Ra7 Qh4 Qa2 Qa1 Bb4 Bh5 Qd5 g5 Rg6 Bh6 Ke7 Bf8+ Kd8 Qd1 Ne8 Rd2 Bc6 Ke3 Ba4 Rde2 Rb6 Qa1 Bd1 Bd6 Kd7 Bc7 Bf8 Bb8 Ke7 Kf3 Nd6 Rg6 Qb7 Rh6 Qc8 Bc7 Bb7 Bg6 Qa8 Bb8
1rB5/1n3Pb1/qb1B1Q1R/pb4N1/Pp2RBK1/rnNr3R/Br3b2/4q1k1 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b3 g5 b4 gxh4 bxc5 d5 Qe2 dxc4 Qf3 Qd3 Qd1 Qd8 Ke2 Kd7 d4 Ke6 g4 Kd5 f4 b5 c6 h5 g5 e5 c7 b4 g6 h3 g7 h4 a3 e3 Kf3 e2 f5 e1B f6 e4+ Kf4 c3 f7 h2 Qd2 c2 Bg2 h3 Qd3 Nc6 Bf3 Nh6 g8R Bd7 c8B Qa5 Qd1 Nd8 Kg5 Bb5 Kf4 Qa6 Bf5 Nb7 Bg6 Bf2 Qd2 Nf5 Bg4 e3 Nf3 e2 Ng5 e1Q Qc3 Bg7 Re8 Rd8 Bd2 c1B a4 Rd7 Re2 Rb8 Ra3 Rd6 Kf3 Rd7 Bf4 Bce3 Qb2 Kc4 d5 Bb6 Nc3 Kd3 d6 Rdd8 Rg1 h1R d7 Rh2 Rh1 Rg2 Re4 h2 Bd6 Nd4+ Kf4 Rg3 Bh3 Rf3+ Kg4 Nb3 Bf5 Re3 Be6 Re2 Qa1 Rb2 Bd5 N3c5 Ba2 Nb3 Rf4 Ke3 Rd4 Rdc8 d8B Rc4 Rf4 Rd4 B8c7 Rd3 Rd4 Bh4 Re4+ Kf2 Bf4 Bg3 Bcd6 Bh4 Rg1 h1R Rg3 Rf1 Rge3 Bg3 Re6 Kg1 Rh6 Bf2 Re4 Bbc5 Kh5 Bb6 Bc8 Bh4 Kg4 Rff3 Qc1 Bg3 Qe3+ Bf2 Qd4 Rfe3 Qf6 Rd4 Kh5 N3c5 Nd1 Qa5 Rc3 a6 Rc4 Ra3 Rc3 Nb3 Rh3 Rd3 Kg4 Bd8 Ne3 Qb6 Nd5 a5 Nc3 Qa6 Bd2 Bc7 B2f4 Bcb6
2r1k1rn/2q1Pb2/1b6/N2B3n/bb1q2RQ/3ppN2/1r1P1N1K/Rr2RNB1 w - - 0 1 illegal: No proof kernel
2rK1R2/2NPBR2/1q3n1Q/2P4B/R2p4/1Bbkpn1b/2nBn2b/1N1r1qb1 w - - 0 1 illegal: No possible last move, all moves rejected
3R1r1K/1Pb1n3/QrBp4/1bqr1k1b/1BP1R3/N1n1b3/1r2Np1R/2qRB3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 a5 g4 h5 b4 a4 e4 h3 c3 h4 b6 h2 b5 a3 g5 h3 e5 f3 b7 f4 Ke4 f2 g6 d3 b6 d2 g7 a2 Bd3 f1B Kd4 f3 Bb2 f2 Ba6 Qe7 Na3 Nc6+ Ke4 Bb5 b8B Nd4 b7 Rh6 c4 Ne2 Qc2 d1R Bc3 Rd5 Rd1 a1B Be1 Bd4 Qa4 Qc5 Bd6 Ne7 g8R Nc3+ Kf4 Rb8 Ne2 Be3+ Kg4 Rf6 Kh5 Kf5 e6 Bfh6 Rd8 Bhf4 Rg1 h1R Rg2 Rg1 Rh2 Ra8 Qa5 Rf8 Qa4 Rg5+ Kh6 Rg6+ Kh7 Be5 Rg2 h2 Qa5 h1Q+ Rh2 Qb6 Bb4 Qc5 Qb6 Bc7 Qa5 Qe4 Qa4 Qb1 Qa5 Qc1 Qb6 Ng8 e7 Re6 e8R Ne7 Qa5 Rb6 Qa4 d6 Kg7 Ng8 Re4 Ne7 Qa5 Bcd7 Kh7 Be8 Qa4 Bbc6 Bb5 Bh5 Qa6 Bd7 Bc6 Bde8 Qb5 Ra5 Qa6 Rab5 Ba5 Rb2 Bb4 Rd3 Bd5 Bb5 Bc6 Rd5 Kg7 Rf6 Kh8 Rf8+
2N4R/P3b2q/2n3n1/qrNKP1n1/n1bB3p/QR2p1N1/1Nqr2k1/qB1B4 w - - 0 1 illegal: No proof kernel
2qN2r1/2k2BBp/1r2Q2r/q2RqR2/3Pq1p1/NRq1b3/b5PR/1nKb1B2 w - - 0 1 illegal: No possible last move
N2RKNQb/3NPn2/1RB2b1B/1b1N3r/1p3pqr/1P4B1/r2r1r2/k3b1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 d4 hxg4 f5 c5 a3 cxd4 f6 Na6 Bg5 Nb4 Bd2 exf6 Bc1 f5 Kf2 f4 Ke1 Na6 a4 b4 Nd2 Nc7 Nb1 Nb5 axb5 Rh6 Ra5 Rh4 Ra1 Rh8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 h4 d5+ Ke5 a5 e4+ d3 b6 g5 c3 f5 b7 f3 b8B g3 h5 g4 h6 a4 h7 a3 Qd2 Kb3 c4 a2 c5 d4 c6 f2 c7 g2 Qg5 g3 Bd2 Bd7 c8N Bb5 Ke6 Bg7 Kf7 Bf6 e5 Nh6+ Ke6 Nf7 Rh6 Qg8 Nf3 g1B Nc3 g2 Rd1 a1B Nb6 Ra2 Ncd5 Kc2 b3 Kb2 Qg3 Qg4 Na8 Bh2 Bd6 g1B Bg2 f1R Rg6 Rf2 Bh6 d2 Bh1 Rb8 h8N d3 Qg2 Bg3 Bc7 Bc4 Kd7 Rb5 e6 Rba5 Ke8 Bb5+ Kf8 Bgh4 Bg3 f4 e7 Bc4 Nc3 Rh5 Ne5 Ba6 Nd5 Bb5 Rc1 d1R Nd7 d2 Rc8 Rdf1 Ke8 d1R Rb8 Rdd2 Rd8 Bc3 Re6 Bcf6 Ng6 Kb1 Rd6 Bab2 Re6 Ka1 Nf8 Bh8 Rb6 Bbf6 Qe4 Rh2 Qg6 Rff2 Bg2 Bc3 Qg8 B4f6 Ne3 R2h4 Bc6 Rdb2 Nd5 Be1 Ne3 Rbc2 Nd5 Rcd2
3bBn1q/BQ3b2/1bK2PNR/q4N1b/k1N2p1p/1Rb3q1/2R4P/1r2r1Nb w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 g4 f5 Ba3 Nc6 Bc1 Nd4 Nh3 exf4 Ng1 f3 Na3 f4 Nb1 Nf5 gxf5 Bd6 Bg2 Bc5 Bf1 Bf8 Kf2 Kd7 a4 Kc6 d4 h5 e4 b5 e5 g5 f6 g4 a5 b3 a6 b2 a7 b4 e6 Kb5 d5 c5 e7 h4 e8N b3 d6 g3+ Ke1 g2 Kf2 Rb8 a8N Qa5 d7 Bb7 d8R Ne7 Na3+ Ka4 Nh3 b1B Be3 c3 Qc2 g1Q+ Ke1 c4 Nd6 f2+ Ke2 Ng6 Nc7 Be7 Rd7 Rhe8 Qd2 b2 Ne4 c2 Kf3 c1B Qd3 c3 Qd5 c2 Ba7 Be3 Nc4+ Ba2 Rc1 b1Q Ned6 Qg3+ Ke4 Bb6 Nf5 Bd8+ Ne6 Nf8 Ng1 Bb3 Bd3 f1B Rh7 Be2 Rh6 Bh5 Ke5 Qb2+ Kd6 Qbc3 Rb1 c1B Bf1 Ba2 Rb3 Bd2 Qf3 Ba8 Qb7 Qg7 Bh3 Qcg3 Kc6 Qh8 Bg4 Bc3 Bd1 Nh7 Nf8 Re4 Ng6 Nf8 Bf3 Re2 Bd5 Re1 Bf7 Re4 Rb2 Bb3 Rc2 Ba2 Be8 Bb3 Nce3 Bf7 Nc4 Bg8 Nh3 Be3 Kd6+ Qb5 Qc8 Re7 Nge5 Bgf7 Rb1 Bh1 Ng6 Re4 Rbb2 Nd7 Qc7 Qa5 Kc6 Nf8 Ng1 Rb3 Qb7 Beb6 Rb1 Kb4 Ra1 Rb1 Raa2 Kb3 Rab2+ Ka4 Rb3 Ree1+
2brNBNN/P5rp/bbpq1RR1/3b4/kBb3N1/b1P5/4nrB1/K2qQ3 w - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 g4 dxe4 h4 a5 g5 axb4 h5 Nd7 Ne2 Ne5 Ng1 Ng6 hxg6 Qd5 Ke2 Qd3+ Ke1 Qd8 a4 Kd7 d4 Kc6 Kd2 b5 a5 e5 c3 f5 Kc2 e3 Kb2 f3 a6 e4 g7 b3 a7 f4 g6 f2 Qe1 b4 Qe2 f3 Bh3 f1B Bd2 f2 Qe1 Kb5 d5 c6 d6 e2 d7 e3 Bg4 Nf6 g8N Ne4 g7 Ng3 Na3+ Ka4 Kb1 b2 Nh6 Rg8 Ka2 b1R Bh3 Rb3 Rd1 Rb2+ Ka1 b3 Nc4 Ba3 Nd6 Bg2 Bc1 f1B Nhf7 Bd5 Nf3 Rc2 N3e5 b2+ Kb1 Qf8 Ne8 Qd6 d8B Ba6 Bh4 Rd8 Nh8 Bac4 Rg1 Rd2 Qf2 e1Q Be7 e2 Ng4 Rc2 Rd2 Qd1 Bg2 e1B Bf8 Ne2 Rd4 Bd2 Qe1 Be3 Rf4 Bb6 Rf6 Ba6 Rh1 Bc8 Rhh6 Bc4 Rfg6 B4a6 Ka2 b1B+ Ka1 Ba2 Rf6 Bd5 Rhg6 Qg3 Bc5 Qd6 Bb4 Rf8 g8N Rf7 Rh6 Rg7 Rhg6 Qd4 Bh6 Rb2 Qc1 Qd1 Qb1 Nf4 Qc1 Bfc4 Qb1 Rf2 Qc1 Rb7 Bf8 Ne2 Qb1 Rg7 Qc1 Qc2 Qe1 Qd1+
Kbr3Rq/nq3N1r/kq2P1RB/p3Rq2/3N2Bn/3p4/q1RP1Q1N/4r2r w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b6 b5 Ba6 a5 bxa5 b6 Bb5 cxb5 a4 Kf2 h5 Kf3 d5 e4 Kd7 g4 Kc8 e5 Kb7 e6 a5 g5 f5 g6 c5 g7 d4 Ra3 c4 Qe1 h3 Qd1 c3 Rh2 c2 Rc3 d3 Bb2 c1R Qe1 h4 Qg3 a3 Qf2 a2 Bg2 a1Q Rc2 Nh6 g8R Qa2 Bd4 Bd6 Rg6 Nc6 Nc3 Bb8 Ne4 Na7 Bg7 Re1 Ng5 Rh7 Nf7 Qh8 Rh1 h2 Bh3 Rc1 Bg4 h3 Ne2 Rb1 Re1 h1R Ng3 h2 Nf1 Ra1 Re5 Re1 Kg2 f3+ Kg3 Rg1+ Kf4 h1Q Nh2 Qg2 Bf8 Rh1 Bg7 Ra1 Ke3 f4+ Kd4 Rae1 Kc5 Nf5 Bf8 Nh4 Bh6 Kc8 b7+ Kc7 Qe3 f2 Qd4 f1Q Qf2 f3 Nd6 Kd8 Kb6 Qfg1 Nf7+ Ke7 Ka6 Ke8 b6 Ke7 Qe2 f2 Qf3 f1Q Qf2 Bd6 b8N Bc7 Nd8 Kd6 Nbc6 Rc8 Kb7 Bb8+ Ka8 Qf3 b7 Kc7 Nd4+ Kb6 Nf7 Ka6 Qg2 Qc6 Qe2 Qf5 Qf1 Qb6 Qf2 Bd6+ b8R Qg2+ Re4 Rc6 Rc8 Bb8 Re5 Qgd5 Rcg8 Rc8+ Nc6 Qd7 Nd4 Qdb7#
k6b/1bPb4/bp1pnr2/1q2NQn1/qRKP1Rq1/2B5/Bq3N2/3NB1Nq w - - 0 1 illegal: No possible last move, all moves rejected
QRq3k1/2RBnq1N/3pn1b1/b1Rn1Bn1/1r3P1q/q2PB3/3p3q/1N1R1K2 w - - 0 1 illegal: No proof kernel
1Br3r1/3kqK1p/r2b3b/r1Pb2bR/1RBN3q/2N1p1N1/2B1r1nP/N2Q4 w - - 0 1 illegal: No possible last move
n3N1b1/Pnbp3p/1q2b2P/1BB5/n1bRRqk1/qB1r3N/q1NK3Q/6N1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 b5 Qd3 f5 Qd2 Ra6 Qd1 Rf6 Nd2 exf4 Nb1 f3 Nd2 f4 Nb1 Rf5 gxf5 Be7 Nc3 Bc5 Nb1 Bf8 c4 Kf7 h4 Kf6 e4 g5 a4 g4 h5 Kg5 a5 d3 e5 g3 a6 g2 a7 b3 f6 b2 h6 d2+ Kf2 b4 c5 b3 f7 Ne7 e6 Ba6 c6 Kg4 c7 Nf5 c8N Qa5 e7 Nd6 e8B Qa3 Qe2 d1N+ Ke1 Nc3 Qe4 f2+ Kd2 Bc4 Nh3 g1Q Nb6 Nb7 Nc8 Na6 Qe3 f3 Qe2 Nc7 Rh2 Bd6 f8N Be6 Ng6 Na8 Nh4 Bc7 Bf7 Re8 Nd6 Na4 Bg8 Re7 Ne8 Qg3 Qe5 Qg1 Bd3 f1Q Re2 Qb6 Bb5 f2 Re3 Qc4 Qh2 f1B Nf3 Qf4 Nfg1 Bfc4 Bf7 Qac5 Na3 b1B Bg8 b2 Nc2 Bba2 Bf7 b1Q Ba3 Qb2 Rd1 Bab3 Bb4 Qa2 Ba3 Qce5 Bc5 Qeb2 Ke1 Qba3 Rd4 Bf5 Re2 Re3 Bd5 Be6 Kd1 Rg3 Ree4 Re3 Kd2 Bg8 Bdc6 Bce6 Bd5 Bc4 Bd6 Bd3 Bb3 Bdc4 Bc5 Rd3+
rB3qq1/1r6/3p1R1r/1QbP4/1nR2nRn/RBP1k3/nprN3B/2qK2N1 w - - 0 1 illegal: No possible last move, all moves rejected
2qb2Nq/bRbQ2n1/4bqB1/2pR4/NBP4r/p3n1K1/5NP1/NqRn2k1 w - - 0 1 legal: proof: f4 a5 h4 g5 a4 gxf4 e4 b5 e5 bxa4 e6 dxe6 Qg4 e5 Qh5 e4 Qd1 Ra6 Nc3 Rg6 Nb1 Rg5 hxg5 Bd7 Qf3 Bh3 Qd1 Bc8 Kf2 Kd7 b4 Kd6 d4 Kd5 b5 h5 g6 e5 c3 f5 g7 a3 b6 a2 b7 h4 Bd2 h3 Bc1 a4 Qc2 h2 Qd1 a3 Bb5 e3+ Kf3 e2 Qf1 e1B Bb2 e4+ Ke2 f3+ Ke3 f2 Kf4 e3 Nh3 e2 Ba4 Ne7 g8R Nd7 b8N Ne5 Bd7 Nd3+ Kf3 f4 Be8 Nf5 Qg1 f1N Bh5 Bg3 Nf2 e1B Bg6 Be6 Na6 Bc5 Rg7 N1e3 Nd2 Qc8 Rc1 a1Q Nb3 Ba7 Nac5 Rh4 Na4 c5 Rb7 Qb1 Na1 Ng7 Qf1 Kc4 d5 Bd2 Rg1 h1Q d6 Kd5 d7 Qh2 Ne4 Nf2 d8N Nfd1 Qb5 Ke5 c4+ Bc3 Rc2 Kd4 Nf2 Qh1 Bc1 Ba5 Nf7 Bd8 Nh6 Qh3 Bd2 Qh2 Ke2 f3+ Ke1 Bf4 Ng8 Bfc7 Rc1 Qe5 Bb4 Qf6 Nd3 f2+ Ke2 Qe5 Kf3 f1Q+ Nf2 Qf6+ Bf5 Qh6 Bg6 Qh8 Rh1 Qe1 Rh3 Qc3 Rg3 Qcb2 Rg5 Qc3 Re5 Qcb2 Kg3 Qc3 Ne4 Kd3 Qc6 Ke2 Nf2 Kf1 Qe8 Kg1 Qd7 Ba5 Rh5 Qf6 Rd5 Bac7+
RqR5/pb2rK1Q/1Nr3N1/3r2b1/Pb2qpRB/5PR1/1r1b1N2/n1q2kB1 w - - 1 2 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 Nh3 h5 Bd3 f4 Be2 Nc6 Ng1 Nd4 Bf3 Nf5 gxf5 Rb8 Be2 Ra8 Bg4 hxg4 Ke2 Kf7 h4 Kf6 d4 g5 b4 c5 a4 e5 f3 c3 d5 e3 Kd3 g3 Kc4 g4 h5 Kg5 h6 e2 d6 e1B Kd5 c2 b5 c4 d7 e4 Ke6 e3 b6 e2 b7 c3 b8R g2 f6 g3 f7 Bb7 h7 Be7 f8R Bd2 Bb2 c1Q Nh3+ Kh4 Rf1 g1R Ng5 e1Q+ Qe2 g2 Ra2 Kg3 Rf7 c2 Rf8 Nf6 Qe4 Ng4 Bd4 Ne3 Rc8 Rb8 Nh3 Bg5 Nc3 Qc7 Rfd8 Re8+ Kf7 Qd6 h8N Re7+ Kg8 Rh1 Nf2 g1B Qh7 Kg2 Nd5 Rh5 Nb6 Qe2 Kf8 Qc4 Bc5 Qe4 Ng6 Qc7 Re1 Qce5 Re2 Kf1 Re8 Bb4 d8B Qc7 Ng4 Qce5 Rg2 Bf2 Kg8 Bfe1 Rg3 Bed2 Nf2 Bh4 Rg4 Qd1 Rg5 c1R Na8 Ba3 Rg2 Ba5 Rc6 Rf7 Nd3 Bc8 Bde7 Nc2 Bd4 Na1 Rg4 Rb4 Rc5 Bb7 Rag2 Rb2 Bg1 Bd2 R2g3 Bab4 Nf2 Qd6 Nb6 Rd5 Rc7 Rc6 Ra8 Qc1 Rcc8 Qb8 Bf6 Re7 Kf8 Bg5 Kg8 Bh6 Bh4 Bg5 Kf8 Re8+ Kf7 Re7+
b4R2/kBB4Q/2qp1p2/b2qr3/2B2N1R/Rq2b3/nnbPPn2/3NnB1K w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c4 gxh4 Na3 b5 Rh3 b3 Nb1 b4 Rh2 Ra5 Rh1 Rb5 cxb5 Bd6 Nc3 Bc5 Nb1 Bf8 Kf2 c5 a4 h5 g4 b2 Kg2 c4 g5 f3+ Kh2 h3 g6 c3 b6 b3 g7 h4 b7 c2 a5 f2 a6 Nc6 b8R Nd4 a7 Rh5 a8B Bb4 Na3 b1N Nf3 b2 Nb5 Nf6 g8B Ba5 Bd5 Re5 Na7 Ne4 Bc6 f6 Ra2 Nbc3 Nb5 b1Q Bcd5 Qb3 Ra1 Na2 Ba3 c1B Rb6 Bb2 Rb7 Nc2 Nbd4 Ne1 Nf5 Bd4 Rg1 Be3 Bg2 f1N+ Kh1 h2 Bb2 d6 Qc2 Qc7 Bc3 Kd7 Rb4 Qc6 Ng5 Kc7 Nh3 Bd7 Rc4 Kb6 Nf4 Ka7 Bh3 Bc8 Bge6 Ba6 Rg8 Bb5 Rb4 Bd3 Qb1 Bc2 Rf8 Nc5 Bc8 Na4 Bb7 Nb2 Ra4 Nf3 Bc4 Ng3+ Kg2 Ne4 Kh1 Ne1 Bf1 Nb4 R1a3 Na2 Rb4 Ned3 Kg2 h1B+ Kh2 h3 Rba4 Bf2 Ne3 Ne1 Nd1 Be3 Rb4 Nf2 Kg1 Bd5 Kh2 Ne4 Kh1 h2 Bd4+ Nc5+ Ng2 Qd7 Ba8 Qe8 Ba6 Bf4 Bg1 Bg5 Rh4 Bg6 Bc4 Qd7 Bd4 Be3 Qf5 Qda4 Qh5 Bc2 Qh7+ Qd7 Bc6 Bg8 Be4 Bd5 Nf4 Ba8 Bb7 Qc6+ Bd5 Nf3 Kg2 h1Q+ Kg3 Nh2 Bc4 Qhd5 Kh3 Nf3 Kg2 Qbb6 Kh1 Ne4 Bd3 Ne1 Bc3 Qbb3 Bda6 Bab6 Ba5 Bbd4 Bb5 Bc3 Bc7+ Ba5 Bc4 Nf2+
rn1K1B1k/1rp2n1r/2RQR3/2p4R/1b1Nn1b1/3B1PR1/2Pn2n1/1N2N1br w - - 0 1 illegal: No proof kernel
2N2rKb/RR1N4/4qb2/qn2R3/2bp1q1P/k2n1pQR/4BPp1/B1rN2n1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 Ke7 Kd3 Kd6 Kc4 a5 h4 f5 e4 g5 c3 a4 b6 g3 b7 f4 Be3 a3 Bd2 a2 Bc1 g2 Rh3 g4 Be2 d3 Be3 b3 Rh2 b2 Rh1 g3 Qd2 f3 Nh3 g1N Bb6 g2 Nf4 Rh7 Qd1 d2 Nd5 Rf7 Ba5 Ne7 Qc1 d1Q Nf6 Ng6 Rh3 Na6 b8R Bg7 Qg5 Qe1 Rb7 Bh8 Qg3+ Nf4 e5+ Kc6 e6 d5+ Kd4 Nc7 Ke5 Kc5 c4 Nb5 e7 Be6 e8R Rc8 Nc3 b1Q Nd1 Qc1 Bc3 Qa5 Bd4+ Kb4 c5 Ka4 c6 Ka3 c7 Qc4 Ra7 Qcb4 Rb1 a1B Rb2 Rg7 Nd7 Nd3+ Kf6 Rf7+ Kg6 Qbd2 Bg7 Qf4 Rb4 Bf6 Kh7 Qc3 Kg8 Qc6 Bf8 Qca6 Bd6 Qc6 Be5 Qca6 Ba1 d4 Rb2 Bc4 Rb1 Qe6 Rb4 Rb8 c8N Rb7 Rb2 Rc7 Rb1 Bb3 Rb2 Rc1 Rb1 Bc4 Re7 Nc3 Rbb7 Nb5 Re8 Qed6 Re4 Qe6 Re5 Rf8+
4b1N1/K1qNBb2/5B1B/4r2Q/pn2pRP1/3rNqp1/q2bB2P/n1R3rk w - - 0 1 illegal: No proof kernel
1bBq1b2/1nR1r2R/k2rN3/PN1PKb2/1n3q2/2Rrnp2/Np3p2/BQ4R1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 f5 a4 c5 d4 Kc7 e4 Kb6 g4 h5 e5 c4 e6 c3 d6 h3 d7 h4 d5 b3 e7 c2 e8R b2 g5 h2 g6 h3 g7 Nc6 Re1 Ra7 Qd2 Nf6 g8R Rh6 Na3 b1Q Re7 Nb4 Qe1 Ng4 Reg7 Rd6 Qe2 Ne3 Bb2 c1B Rh7 Qe4+ Kf2 f3 Kg3 f2 Nc4+ Ka6 a5 b5 Qd3 Qd4 Kf3 f4 Ne2 Rb7 Rhg1 h1R Ra3 h2 Nc3 Q4f6 Ke4 f3 R8g6 Qg5 Kd4 Qf4+ Qe4 Bd2 Bh3 Rc7 Rga1 Rd1 Rg1 h1N Rc1 Ng3 Ba1 Rb7 Na2 Ngf5+ Kc5 Bc3 Qb1 Be5 Rac3 Rd3 R1c2 Qe8 d8N Re7 Ne6 Qd8 Rf1 Rdd7 Rcc1 Bb8 Na3 Rd6 Rh1 Ng7 Rhg1 Ne8 Nd4 Bf5 Ne6 Nbc2 Bg4 b4 Nb5 b3 Bh3 b2 Bg4 Rd4 Bh3 Ra4 Bg4 Nb4 R1c2 Ra3 Bh3 Qh6 Kd4 Rb3 Rc7 Rd3+ Ke5 Rb6 Na7 Be4 Rc3 Nd6 Nb5 Nb7 Bf5 Rd6 Bh3 Rf7 Ng5 Qh4 Bd7 Re7+ Ne6 Bf5 Bc8 Qf4+
q2RN2Q/4n3/1Bb3pP/pq3r1p/NrB1P1bB/RqB1nN2/1K1b2k1/4r3 w - - 0 1 illegal: No possible last move, all moves rejected
3q2k1/B2rR1n1/r3np2/rq1RN1Q1/pNb5/1P1PB1q1/1KR1BpR1/1n4b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 c5 g4 a5 b3 h5 b6 f6 d3 Kf7 Kd2 a4 Kc2 h3 e5 h2 g5 h4 b7 h3 Ba3 c3 Qc1 c4 Be2 f3 Qe3 Nd7 b8B Ba6 Qe4 Rh5 Qf4 Bc5 Bc7 Nf8 Ba5 Nh6 e6+ Kg8 e7 Ne6 g6 Nf5 Bb6 Nfg7 Kc1 c2 Kb2 c1Q+ Ka2 c3 Qg5 c2 Nc3 Qe3 Rc1 Bc4 Nd5 Ra6 Kb2 Qf4 Bb4 Qg3 Ba7 Bf2 Bd2 Be3 Rb1 c1N Nb4 Na2 Rc1 Nc3 Rc2 Nb1 Bc1 Bc5 Be3 Bb6 Qh6 Rha5 Qg5 f2 Nf3 Bc7 Re1 h1Q Ne5 h2 Rg1 Qhd5 Rg2 h1R e8R+ Nf8 Re7 Nfe6 Qh4 Qb5 Qg5 Nf5 g7 Rh4 Rh2 Rd4 Rh4 Rd7 Rd4 Bd6 Rd5 Qh3 Nf7 Bh2 Ne5 Qg3 Nf7 Kh7 g8R Bg1 Rg6 Nfg7 Ne5 Qh4 Qf4 Qh2 Rg2 Qg3 Qg5 Kg8
r1nn2N1/k1r3br/4p2q/1b1P1n2/bpNP1R2/BN1QKB2/RRR2p2/6q1 w - - 0 1 illegal: No proof kernel
RK2q3/2Q1n2n/2n1pp2/BpPB4/1N1R1NBb/2kP1B1q/2r1bN2/1q4br w - - 0 1 illegal: No proof kernel
qB6/Rq3q2/b2pn2p/5b1p/rR3R2/B1NPr1R1/nQ4Pk/N2Kb1Nn w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 axb5 g6 h5 Qg5 Ra5 Qe7 Ra1 Qd8 b4 gxh5 b6 c6 b7 Qb6 e3 Ke7 b5 Qd8 b6 Ke8 Bb5 cxb5 c4 Ke7 e4 Kf6 e5+ Kg5 e6 a5 c5 f5 e7 a4 e8R b4 c6 b3 c7 h6 Rh3 a3 Re4 a2 Re5 b2 Rd5 f3 Rg3+ Kf4 Qc2 f2+ Ke2 f1N Rh3 Qe8+ Kd1 Ng3 Qb3 Nh1 Rh2 Ra4 Qa3 Bb4 Nc3 Kg3 Nf3 b1Q Rd3 d6 Re3 f4 Ng5+ f3 Nh3 Nd7 b8N Ne7 b7 Nc5 Na6 Nd5 b8B Bf5 c8R Ne6 Qb2 Qf7 Nc5 Re8 Nb3 Qe4 Rb1 a1Q Ng1 Ba5 Rc7 Nb4 Rb7 Na2 Ra7 Qeb7 Rh4 Bb4 Rg4+ Kh2 Rf4 f2 Ref3 f1B Rg3 Ba6 d3 Qc8 Qe2 Qcb7 Ba3 Ng5 Qd2 Re3 Qb2 Ne6 Rgf3 Nc1 Rg3 Qa2 Na1 Qad5 Qd2 Na2 Qc2 Ba5 Rbb4 Qa8 Qb2 Qdb7 Rff3 Bd8 Rff4 Bh4 Rg6 Bf2 Rg3 Be1
3n2Qr/2qK3R/2p1pbn1/1R1BrRB1/1P1qb3/3qBP1p/n1k1rR2/1N1N4 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 b4 h3 b6 e3 f3 a4 d3 c3 g5 a3 b7 h4 g6 e6 g7 c2 Ra2 h2 Ra1 a2 Ba3 c1N Nh3 e2 Nf2 Ne7 g8R e1R Rg5 Re2 Rf5 Ra5 Qc2 Rb5 Nd1 Ng6 Kc4 Qe7 d4 Nc6 b8R Nd8 d5 Bb7 Qd2 Qh7 Qg5 Bg7 Bb2 Bf6 Bd4 Ba8 Be3 Ra5 Rb5 h3 Rg1 h1Q Rg2 Qh2 Rf2 Re1 Bd3 Re2 Be4 Bb7 Qh4 Qd7 Qh7 Qe5 Qg8 Qg3 Rf4 Ke5 d6+ Bd5+ Kc5 c6 Rh4 Qc7 d7 Qg5 Rh7 Qf5 Bc2 Qd3 Bb3 Be4 Bd5 Qd6+ Kb6 Qe7 Bf4+ Kd4 Kc7 Qf7 Bb3 Qe7 Rf5 Re5 Bd5 Qb5 Be3+ Kd3 Kc8 Kc2 Kc7 Qd3 Kc8 Nf7 d8B Qa7 Be7 Qad4 Kd7 Nd8 Nbc3 Bg7 B7g5 Bf6 Rb1 a1Q Rb3 Qa5 Nb1 Q4c3 Ra3 Na2 Ra4 Qb6 Ra5 Qcd4 Rb5 Qc7+
1B4RN/2q2BNn/1P3br1/1Q3b2/2NpN1RK/q1q1Pp1n/1b3pRr/1rk5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d3 g4 Ke7 c4 Kd6 b4 Ke5 b6 Ke4 g5 d5 b7 f5 g6 a5 c5 h5 e3 a4 c6 d4 c7 h3 b5 h4 g7 d2 b6 h2 Ba3 h3 Ra2 Ne7 g8N Nd7 b8N Nd5 Bg2+ Kd3 Qf3 d1Q Nd2 Qb3 Ne4 N7f6 Qg3 Be7 Rc2 Qc3 Bd6 a3 Nc6 a2 Qg5 a1B Nd2 Bb2 Ne2 Ra7 Ra1 h1Q Ng3 h2 Nc4 Qhe1+ Kf3 Qa3 Nh5 Qec3 Rg1 h1R Be5 Ra5 Ng7 R8h2 Kf2 Qdd6 Nd8 Nh7 Nf7 Rc5 Kf3 Rc6 Nh8 Qd8 Qh5 Rg6 Nf6 Be6 c8R Qdd6 Ne4 Bf6 Bh3 Qe7 Rg4 Rb1 Bb8 Qc7 Rcg2 Bd7 Kf2 Kc2 Rg3 Kc1 Qg5 f3 Qh5 Nf4 Rg8 Be6 Rg5 Bd7 Kg3 f2 Bg4 Nh3+ Kh4 f4 Be6 f3 Bf7 Be5 R5g4 Bc8 Ne8 Bg7 Qb5 Be5 Ng7 Bf5 R4g3 Bf6+ Rg5 Be5 R5g4 Bf6+
rrq4b/1R2n2N/PN1p1Kr1/2BR1p1P/1p2q1B1/Rq2bbn1/1N5Q/2kN4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 a4 b5 e4+ d3 h4 g5 a5 f3 a6 b3 h6 f2 h7 f6 e5 g4 e6 g3 e7 b2 e8N g2 h5 b4 Na3+ Kc3 Be3 b1Q Nc4 d2 Nh3 g1B Bc5 Bg7 Be2 f1R+ Nf2 Bb7 Bg4 d6 Qe2 d1Q Nb2 Nc6 Ke6 f5 Nf6 Re1 Ra5 Qd3 Rh3 Nce7 Qe5+ Kd2 c4 Qe4 Rha3 Kc1 Nfd1 Rf1 Kf7 Be3 Qh2 Rg1 Rb5 Nc6 Rba5 Nge7 Rb5 Re8 h8R Nd4 Nh7 Bc6 Rg8 Be5 Rg7 Ne2 Ke6 Ng3 Kf7 B5f4 Kf6 Qc8 Rba5 Ng6 Rb7 Ne7 Ba7 Qbc2 c5 Qb3 Rab5 Bd5 c6 Rg2 c7 Bc6 Rd5 Be5+ Kf7 Bh8 Bb6 Rg8 Bc5 Rg7+ Kf6 Rc2 Bb6 Rc5 Ba7 Rb5 Bc5 Rb6 Ra7 Rbb8 Rb7 Qe8 c8N Qd8 Nb6 Qc8 N2a4 Qec2 Rd2 Bf3 Rd5 Qe4 Nab2 Rg6+
1r4BB/b3k3/pR1p3b/BPb1Bn2/3npR2/q4N2/P3q2N/1qNQ1nrK w - - 0 1 legal: proof: e4 f5 c4 fxe4 g4 h5 c5 hxg4 c6 bxc6 Bd3 c5 Bf1 c4 d3 c5 Be2 c3 Nf3 c2 Ng1 c4 Bf1 c3 Nd2 Ba6 Nb1 Bc4 dxc4 Qc7 Bd3 Qb6 Bf1 Qd8 h4 g5 b4 e5 f4 g3 b5 g4 c5 a6 f5 g2 Kf2 Ne7 c6 Rh5 f6 Kf7 c7 Bh6 c8N Qe8 Bb2 c1N Nb6 c2 Na4 Nbc6 Nf3 g1B+ Kg2 e3 Nac3 g3 Nbd2 e2 Nh2 e1Q Ne2 Ba7 Ndf3 Nb3 Nc1 Rg5 h5 Ncd4 Bc4+ Kf8 f7 Nd2 Rg1 Rb8 Kh1 Nef5 Rf1 Ke7 f8B+ Kd8 Bb4 d6 Bg8 Ke7 Ba5 g2+ Kg1 Qe2 Rf2 Nf1 Rb1 Bf8 h6 Qg6 h7 Bh6 h8B e4 Ra1 Qh5 Rb1 Qh3 Ba1 Qg3 Rb4 Rg6 Rc4 Qh3 Rc6 Qg3 Nh4 Qa3 Rf4 Rg3 N4f3 Rg7 Nb3 c1Q Rb6 Qcb2 Nc1 Qb1 Ng4 Nd2 Kh2 g1B+ Kh1 Nf1 Bb2 Nb3 Ngh2 Bc5 Be5 Nbd4 Be6 Rg4 Bg8 Rg1+
2q3n1/1R1n2p1/2Bq1NrB/1pBQrb2/3P1PnB/1K5k/1Rpb2R1/3bNq2 w - - 0 1 illegal: No proof kernel
1n6/1KRB2p1/QB3Pp1/NBBk2qp/qr2r3/b4N1r/RN1P2b1/q2bn3 w - - 0 1 illegal: No proof kernel
1r1nq3/1b1pKp2/N5qn/B1B1b2k/3nP3/rRR1P3/rNBNb2p/1QB5 w - - 0 1 illegal: No proof kernel
q1nN3B/2Np1p2/2bbQ1P1/1rr1RB2/krp4B/Bq3P2/R2n2bK/Rq6 w - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 d4 exd4 c3 dxc3 Qd2 gxh4 Qc2 Ne7 Qd1 Ng8 b4 h5 e4 c5 g4 a5 b6 h3 f3 a4 Kf2 c2 Kg3 h4+ Kh2 a3 b7 a2 g5 Ke7 g6 Qb6 e5 Na6 b8B Rh5 e6 Bb7 b5 Bc6 Be3 c1R Bg3 Rb8 Qb3 c4 Ne2 Rc5 Na3 Rb1 Nf4 Kd6 Bd4 Ne7 Bd3 Nc8 e7 Qb7 Qa4 Rb4 e8R Kc7 Qc2 Kb6 Qe2 Ka5 b6 Ka4 Nb5 Bd6 Nc7 Qa8 b7 Rbb5 Rag1 a1Q Qe6 Qa2+ Rg2 Qb3 Bf5 Rb4 Rd2 Rbb5 Bh8 Rb4 Kg1 h2+ Kg2 Rbb5 Re1 h1B+ Kh2 h3 Bh4 Bg2 Ra1+ Qa3 Rda2 Rb4 Kg3 h2 Re7 h1Q Re8 Qb1 Kh2 Re5 Re7 Nc5 Re8 Nb6 Re7 Rc8 b8B Ne4 Ba7 Rb8 Re8 Nc8 Bc5 Nd2 Re7 Ka5 Re8 Qa4 Re7 R4b5 Ba3 Rec5 Qe5 Rb4 Nfe6 Qab3 Nd8 R8b5 Re6 Be7 Qd6 Bf8 Re5 Ka4 Qe6 Bd6
1b3K2/2P3B1/1Br1r1bq/1rQ1R1qn/1pnB1Np1/5Nbq/RPk1p2B/5R2 w - - 0 1 illegal: No proof kernel
2n2NB1/2pK4/2N4k/q3RqR1/B2Qnr2/1nqp1rp1/PPB5/N3bbBr w - - 0 1 illegal: No proof kernel
q2B4/2ppqb2/N1nrB2N/2pQRrR1/1q2BbP1/2Pr2RK/1nk2b2/6B1 w - - 0 1 illegal: No proof kernel
QKBk2bb/1Pp1N3/B6r/2rqq1n1/1b5R/2NpBn2/RP3p2/R2n1q1R w - - 0 1 illegal: No proof kernel
3n2k1/1p1b2B1/1N2Rq1n/p1B1qp2/R3r2r/nNRRb1PB/3rP3/2bQ1K2 w - - 0 1 illegal: No proof kernel
QR1B1qn1/PB1r1p2/1n4n1/1p1b1Npk/3K3q/b3Rb2/R4NqP/1r2B2R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 b5 a4 g5 e4 c5 d4 g3+ Ke2 c4 a5 c3 Kd3 c2 d6 b3 e5 g2 d7+ Ke7 a6 b2 d5 f3 e6 Kf6 e7 Kg6 e8R f2 d6 Bb7 Be3 c1N+ Kc3 Bd5 Nh3 g1Q Nd2 b1Q Nc4 Qb4+ Kd4 Qg2 Bd2 Nd3 Ra2 Nf4 Qa1 Kh5 Re3 Ng6 Be1 Rh6 Bd3 f1B Nf2 Be2 Be4 Qe7 d8R Nd7 Re8 Bf3 Rb8 Nb6 d7 Ra7 d8B Rd7 a7 Qe8 Qb1 Bd6 Qb3 Qf8 Qa3 Qa4 Qc5 Rh7 Qc6 Ba3 Qa8 Rh6 Kc3 Rh8 Nd6 Rh7 Nf5 Rh8 Bd3 Qh4 Bf1 Rc7+ Kd3 Rc1 Be2 Rb1 Bf1 Nf4+ Kd4 Rh6 Bd3 Rd6 Be4 Rd7 Ke5 Bc4 Bb7 Bcd5 Kd4 Ng6+
4k1N1/pR2Nr1p/2Pn4/2QRN1B1/3RPp2/5Nnb/K1nb2Bb/1r1q1qq1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kd2 d5 b4 f5 c4 a3 Kc2 a2 Kb2 d3 e4 d4 g4 f3 g6 d2 g7 f2 g5 d3 b5 Nf6 g8N Qb6 c5 Na6 g6 Rb8 g7 Nb4 c6 Bd6 Rh5 Bh2 Nf3 Nc2 Bg2 f1N Ne7 Qg1 g8N Ng3 b6 Qf1 Qe1 d1Q b7 d2 Ne5 Qg4 Qe3 d1Q Qc5 f4 Nd2 Qg5 Ndf3 Bh3 Be3 Qg7 Bd4 Qg4 Rc1 a1B+ Ka2 Bc3 Rb1 Qg5 Rb4 Bd2 Bc3 Qg4 Rd4 Qg6 Ba5 Qg4 Bd8 Qg7 Nh6 Rf8 Nhg8 Rf7 Rg5 Ng4 Rh5 Nge3 Rg5 Nc4 Rh5 Ra8 b8R Nd6 Rb7 Rc8 Nc4 Ra8 Rhd5 Rb8 Nce5 Qg4 Rc7 Rb1 Rb7 Nc4 N7g6 Nd6 Bg5 Qg1 N6e7 Qdf1 Ne1 Qge2 N1f3 Qed1
n5k1/p2K2Pq/1bBR2rn/1r2NRQ1/1R1q1b2/N1P4N/bnp1rB1p/4N3 w - - 0 1 illegal: No proof kernel
2Bn4/N1b1r3/2Rn1N1B/1nP1n2N/3Q1n1p/1B1p3q/rPKpkBb1/2R1r3 w - - 0 1 illegal: No possible last move, all moves rejected
r1nBq2Q/RnKb4/2b1BPp1/4Pb1N/NNp5/2Bp4/1R2Bb2/3nrbk1 w - - 0 1 illegal: No proof kernel
rnK1k3/3n2Q1/RBbP2Rr/1B2Nn1n/3R1bp1/R5n1/1PB1Np1p/r1q5 w - - 0 1 illegal: No proof kernel
qknN4/4ppRB/1PR1Q1N1/nPRK4/b5nB/2B2B2/1r4pb/1rb2bb1 w - - 0 1 illegal: No proof kernel
3Q1rrK/3p3n/RRbp2N1/BB5r/q3P1kb/1p1R1rPr/2R1N1n1/2Nn4 w - - 0 1 illegal: No possible last move, all moves rejected
n7/b1p1r1Np/1nbbB2K/6P1/P1NkB1n1/1Qb4N/RBR1b1pB/5qr1 w - - 0 1 illegal: No proof kernel
1rRr4/2p2PP1/1R1p4/3b1Bn1/1Bb4b/Qn1R2n1/1R1BpK1q/2Nknn1N w - - 0 1 illegal: No proof kernel
1K5n/rP2Pp2/2bn3k/p2B2bb/n1qN1pB1/1R1n3B/5R2/1RQnB1rN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 a5 b4 h5 e4 h3 g4 h2 c4 h4 g5 h3 b6 Bd7 e5 Bg4 e6 Rh4 b7 Ra7 c5 Bf3 b5 Qe7 c6 Bh6 b6 Kf8 c7 Kg7 c8B Qb4 g6 Qc5 e7 Bg5 Bg4 Nf6 Nd2 Ne8 Nb3 Kh6 g7 Nd7 b8R Nf8 g8B Nd6 Bh7 Ng6 Ne2 Nh8 Ng3 Qc7 Rg1 h1N Rg2 h2 Rb1 Qc5 Be4 Qc4+ Kd2 d3 Rf2 d4 Bfh3 Rh5 Bd5 Be2 Bb2 Rh4 Qc1 Bd1 Re2 Nf2 Bc3 h1B Bb4 Bf3 Nh1 Rh5 Na1 Ba4 Nc2 Bc6 Rb3 Nd1 Rf2 Nb2 b7 Na4 Rc8 Bb5 Rc5 Bc6 Rb5 Be2 Bf1 Rh2 Bfh3 Rg2 Rb1 Rg3 Bc3 Rg1 R5b3 Bf1 Kd1 Bg2+ Be1 Be4 Kd2 Bg6 Na3 Bh5 Nb5 Qb4+ Kd1 d2 Kc2 d1N Kd3 Nf5 Ke4 d3+ Ke5 d2 Nd4 Qc4 Re2 Ndb2 Rf2 Nh4 Kd6 d1N Kc7 Nf5 Kc8 Nd6+ Kb8 Nd3
5Nr1/PK1B1b2/2R4R/3pn3/2Rbnp1b/3B1bqN/1pB1rPRQ/r3k1b1 w - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 Be3 hxg4 Bf4 c5 dxc5 e6 Be3 e5 Bd4 exd4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 Kf4 e4 f5 a4 d5 h4 g5 c4 g3 h5 d3 e5 d2 e6 g2 e7 g4 e8B b3 h6 g3 a5 b2 a6 Qg5 Kb6 Be7 c6 Nf6 c7 Nc6 c5 Ne4 a7 Rg8 h7 Ne5 h8R Be6 c8R Bf7 Qh5 d1B c6 Bf3 Nd2 b1R+ Nb3 Bc5+ Kc7 b5 Bd3 b4 Qh2 Bd4 Ra6 Ra1 Nc5 b3 Bd7 b2 Kb7 Qg6 Rc7 Rae8 Rh6 Kg4 Ne6 f4 Nh3 g1B Rc8 g2 c7 Qg5 Ba4 Qh4 Bac2 Qg3 Nf8 Re7 Ng5 Re6 Rg6 Re7 Rac6 Re6 Qh7 Bh2 Rh6 g1B Nh3 Qg2 Rc4 Bg3 Rh2 Bh4 Qh8 Qg3 Rg2 Nf6 Rb8 Ne4 c8B Be2 Bd7 Kf3 Rbc8 Bd1 Bb1 Re8 Bdc2 Ke2 R8c6 Ke1 Bd3 Re7 Bbc2 Bf3 Qf6 Qg7 Qg5 Re8 Qg3 Re6 Qh2 Qg3 Bb3 Re7 Bbc2 Nc5+ Ka8 Ng6 Rb6 Re2 Rc6 Ne4 Kb7 Ne5
2Rb2R1/r3b1n1/2QK1B1q/2NR1P1k/PNrNp1pn/1r2bp1b/4Bn2/2R5 w - - 0 1 illegal: No possible last move, all moves rejected
6n1/Kr2bb1b/1N3qB1/nQp2r2/1n3R1p/2np2Nk/NPrR3P/RRB5 w - - 0 1 legal: proof: d4 b5 c4 e5 f4 exd4 a4 g5 axb5 gxf4 Na3 d5 Nb1 dxc4 Kf2 Kd7 e4 Ke6 g4 h5 g5 a5 g6 f5 e5 a4 b6 h4 b7 f3 g7 f4 Qc2 c3 Ra2 a3 Nd2 Be7 Qb3+ Kf5 e6 Kg4 Ra1 a2 Bb5 c2 Be8 Nc6 b8R Nb4 Rb5 Rb8 Ne2 Kh3 Rd5 c5 Nb1 Rh5 Ng3 Rf5 Bg6 Bd7 Rd6 Be8 Nc3 Bf7 Qa4 Qb6 Qb5 Qa6 Rb1 a1N Na2 Nb3 Ke1 f2+ Ke2 f1N Rg1 Nc6 Kd3 f3 Kc4 f2 Ra1 Nb4 Rh1 Nh6 g8N d3 Nf6 Ng8 Nd5 Qc6 Nb6 Na5+ Kc3 Nd2 Rd4 f1B Rf4 Bg2 Rd1 Nf1 Rd2 Ne3 Rb1 Be4 Ra1 Bf8 e7 Qd6 e8R Qf6+ Re5 Be7 Rb1 Nb7 Ra1 Ned5+ Kb3 Na5+ Ka4 Rh5 Rb1 Bf5 Re1 Rg5 Bh5 Bh7 Bg6 Re5 Qc4 Rf5 Kb5 Nbc6 Ka6 Ncb4+ Ka7 Nc3 Rde2 Qh8 Qb5 Qf6 Be3 c1R Rd2 Rc2 Ra1 Qd6 Reb1 Qd4 Rdd1 Qh8 Bc1 Qf6 Rd2 Rb7+
3r4/2R1qBkn/2n1b2p/r2r1p1Q/1pK1P2n/N1b1bB1N/2NN2nP/B4R2 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 g5 a4 gxf4 d5 cxb4 axb5 e6 Qd4 exd5 Qd1 d4 Kd2 d5 Kd3 a5 g4 f5 e4 Kf7 c4 h6 c5 a4 g5 a3 b6 f3 c6 a2 b7 f2 c7 Nc6 b8N Bc5 g6+ Kg7 Bb2 Qe7 Na3 Be6 c8N Ra5 Nd7 Nf6 Nf8 Nh7 Rc1 a1B Bg2 f1N Nh3 Nd2 Rf1 Nf3 Nb6 Nh4 Nbc4 Bb6 Qh5 Bc5 Nd7 Rd8 Nde5 Bb6 Nc2 Ba7 Kd2 d3 Bf3 d4 N4a3 Bb6 Nec4 Bc5 Kd1 d2 Ke2 d1N Kd3 Ne3 Nd2 Neg2 Bc3 Bd6 Bb2 Bf4 Bc3 Rdd5 Kc4 Be3 Bb2 Nf6 Bc3 d3 Bd4 Bc3 Be5 Kg8 g7 Kh7 g8B+ Kg7 Bf4 Nh7 Bf7 Qg5 Be5+ Qf6 Nb3 d2 Bd4 d1R Be5 Bcd2 Ba1 Bc3 Nd2 Qe7 Kb3 Rd3+ Ndc4 Na7 Ne1 Bf6+ Rc3 Rd6 Nec2 R1d5 Nd2 Rd8 Rc7 Nc6 Kc4 Bc3
r1r1n3/2QNR3/1RB1pN2/1bq1P1KP/1B1n1b2/1N4Rp/1pr1k2n/bn2N3 w - - 0 1 illegal: No possible last move, all moves rejected
1K2BBbq/2Rn1b2/2PN2pr/p7/k2Pr1n1/3QnNB1/6rp/b1RbN1N1 w - - 0 1 illegal: No proof kernel
r2NR3/2R1N2Q/1p6/k1pbn3/PRr1bn1N/B2p1B1q/3r3P/bKn2Rn1 w - - 0 1 illegal: No proof kernel
nN2B3/3nR2r/1pPR2p1/bQR1b3/1qK3br/N1n4N/2P1pBk1/r1r2R2 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 f4 Ke6 h4 Kf5 a4 e5 h5 d5 h6 b6 c6 g6 a5 b3 Kc3 g3 a6 g2 h7 d4+ Kc4 d3 a7 b2 Ra5 e3 Nh3 Ke4 f5 g1R f6 e2 f7 Kf3 Na3 b1N Nb5 d2 Nf4 e4 Nd3 e3 Bh3 Qe7 Nf2 Na6 Qf1 d1R Bd7 e1B Na3 Nc3 Rc5 Nc7 Be8 Bg7 f8N Be5 Nd7 Nf6 Nb8 Nd7 Nh3+ Kg3 Qf5 e2 Be3 Ra1 Bf2+ Kg2 Qd3 Bd2 Qf5 Rgc1 Rf1 Nb1 Qd3 Ba5 Qb3 Nc3 Qb5 Rg8 h8R Rg7 Rg8 Rh7 Rg7 Qd6 Re7 Qd2 Na6 Rb8 a8R Qd6 Ra7 Na8 Re6 Rb7 Nb8 Rh4+ Bd4 Qf8 Rd6 Qf4 Kd3 Rc7 Bf2 Qb4 Rb7 Nf6 Ra7 Rch7 Rf7 Bg4 Re7 Qb1 Kc4 Nd7 Bd4 Qb2 Bf2 Qb4+
4NBbr/nN1rNp2/K1B1qR2/2n2b1P/4B2R/3PpQN1/n3p1rr/3kb3 w - - 0 1 illegal: No proof kernel
1N2q3/PRr3B1/1rQb2pB/1p1Bb1P1/4nrB1/b1pN2nn/K1k1N3/5R1r w - - 0 1 illegal: No extended proof kernel
3rB1b1/6rq/b2B2B1/2b2R2/3pP1K1/B1Npqn1N/N3P2p/1QRbkn1b w - - 0 1 illegal: No proof kernel
q3n3/nB4rb/4qk2/p1BPppq1/3N1B2/r1qR1K1P/1qR3Q1/NN2bB2 w - - 0 1 illegal: No proof kernel
1B3nN1/3B2QN/R1prPp2/7K/1b1kr1bb/1nR5/1PbNqpR1/bR2q3 w - - 0 1 illegal: No possible last move, all moves rejected
QNK1n2r/Bb1n1k1P/N5R1/1rBPB3/2R1r3/1B3qrr/p1p1qp2/4b2R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 d4 c5 b4 a5 e4 f5 h4 a4 d5 g3+ Kf3 g2 h5 c3 h6 c4 h7 a3 b6 c2 b5 c3 b7 a2 e5 Bg7 e6 Bd7 b6 Ra5 e7 Rb5 Bc4 Nf6 Be3 c1R Ne2 g1R Qa4 c2 Bb3 Rg4 Qa8 Bc6 Nd4 Kf7 e8R Qe7 Nc3 Nbd7 Rc8 Ne8 b8B Re1 b7 Rh4 Bg1 Re4 Ba7 Bh6 b8B g4+ Kg2 g3 Kf3 g2 Na4 Qe6 Be5 Qf6 Bf2 g1R Nc5 Rg5 Rag1 Rh3+ Rg3 Bf8 Na6 Bb4 Bg1 Be1 Bf2 Bb7 Rc4 Bc6 Ne6 Rg7 Nb8 Rg5 Nc5 Qe6 Be3 Rgg8 Ke2 f3+ Kd3 f2 Nca6 f4 Rg6 f3 Bec5 Qf6 Rh6 Rgg3 Rg6 Re3+ Kd4 f1Q Rg1 f2 Rh1 Rc3 Ke4 Qf3+ Kd4 Qd1+ Ke4 Rce3+ Kf5 Re4 Bcd4 Kf8 Ke6 Qf3 Be3 Q1e2 Beb6 Nef6 Bc5+ Ke8 Kd6 Kf7 Kc7 Ne8+ Kc8 Bb7+
6Rr/5rP1/2p2BR1/bQRnn1K1/Np4B1/nB2n3/3n1qPp/Nk1Bq2b w - - 0 1 illegal: No proof kernel
2B1rb2/3R1P2/q2BpKNr/4n1p1/bQNpb1NP/b2R2q1/n7/kNRb4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 b5 c4 g3 a4 g5+ Kg4 Ke5 h4 b3 c5 g2 a5 d3 f4+ Kd4 a6 b4 a7 b2 c6 d2 c7 b3 Qe1 Bd7 c8R Rh6 Nh3 g1B Rc3 Qb6 Nf2 Qa6 Bh3 Ba4 f6 d1B+ Kf5 Nc6 f7 Nf6 Ng4 Re8 a8N Nd7 Nb6 Nde5 Nc4 Nb4 Bd2 Na2 Rd3+ Kc5 Rh2 d4 Rh1 Be3 Bb4+ Kd5 Bd6 Bc1 Nba3 b1B Qb4 Bbc2 Nb1 Ba3 Re1 b2 Rh1 Bf3 Rc1 Bcd1 Nf2 Bg7 f8N Bg2 Ng6 Bf8 Ng4 e6+ Kf6 Be4 f5 Nc3 Bg2 Na2 Nbd2 b1Q Bf1 Qb3 Nb1 Nf3 Bg2 Bb2 Nf2 Qb6 Kf7 Bb5 f6 Bf5 Rd2 Nc3 Ra6 Na2 Ra7 Ba4 Nca3 Qa6 Ng4 Ke4 Nc4 Ba3 Rd7 Qc3 Rb2 Kd3 Rb3 Ne5+ Kg8 Be4 f7 Bf5 Bb7 Be4 Bc8 Be2 Rd1+ Kc2 Re1 Qg3 Rd3 Be7+ Kg7 Bf8+ Kf6 B2f3 Re2+ Kc1 Rb2 Bfd1 Rbd2 Bdb3 Rd1+ Kc2 Na5 Kb2 Nc4+ Ka1 Rc1 Bd1
1NK2R2/2bRp3/Ppq1knb1/1Pn4B/2R1b1Rr/1Bp1Q3/1B4rN/2bq3b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 b5 fxe4 Qa4 d5 Qb4 axb4 cxd5 Qd7 Na3 Qd6 Nb1 Qd8 Ke2 Kf7 Ke3 c5 Kf4 h5 Ke5 h3 f4 b3 g4 b2 a4 h2 d4 h4 d6 e3 d5 b6 a5 e2 d7 e1B a6 h3 g5 c4 d6 c3 g6+ Kg7 Ke6 Nh6 f5 Qc7 f6+ Kg8 f7+ Kg7 Ne2 Ra7 Ra4 Rb7 Nd2 b1B Nd4 Ng8 Rc4 Qd8 Rg1 h1Q Bb2 h2 N2f3 Nf6 Nc6 Bg3 Be2 Rh4 Rg2 Qd1 Rg1 h1B Nh2 Bd3 Bh5 Qe8 Rg2 Be5 Rg3 Ra7 Rgg4 Bb7 d8Q Nbd7 Nb8 Bbg2 Qc7 Qc8 Qc5 Qc6 Qf2 Bf4 Qc5 Bc1 Qe3 Nc5+ Ke5 Bb1 d7 Rb7 d8R Rd7 Rgd4 Bf3 Rg4 Rd2 Rd3 Rg2 Rdd4 Kh8 g7+ Kh7 Rd2 Bg6 Rd6 Nd3+ Ke6 Bfe4 g8B+ Kh8 Rc5 Bh6 f8R Kg7 Bf7 Bf4 Bg8 Qa8 Rd4 Bc7 Bf7 Ng8 Kd7 Kf6 Kc8 Qc6 Rcd5 Nc5 Rd7 Ke5 Bb3 Nf6 Rc4 Ke6
4q3/2PNQ2q/p1PKb1kn/p1Rpr1Bb/Bb6/N6N/B1bR1b1B/r4n2 w - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 e5 dxc5 exf4 a5 b6 Be3 bxa5 Bd2 Qb6 Bc1 Qd8 Kd2 d5 Kd3 g5 Kd4 f5 Ke5 Kf7 h4 g3 e4 g4 b4 g2 c4 g3 b5 f3 b6 f4 c6 f2 c7 f3 b7 a6 c5 Be6 h5 Qe8 h6 Kg6 h7 Nh6 Bc4 f1B Ra2 f2 Na3 Bd3 Nh3 g1Q Qe2 f1B Rd2 g2 Ba2 Bc2 Qe1 Rg8 h8B Be2 Qh4 Qe1 Qe7 g1B Kd6 Qh4 e5 Nc6 b8N Bh5 Nd7 Nb4 Bf6 Rb8 Bg5 Bf2 Bb2 Rg7 Rc1 Rf7 Bd4 Rf5 Bde3 Qe4 Bgf4 Rg5 Bh2 Rg1 Bg5 Qd3 Rb1 Rh1 Rb2 Ra1 Rb3 Qf5 Rc3 Qff7 Rc4 Qh7 Rc3 Ba4 Rc4 Nc2 Rc3 Ne3 Rcc2 Beg4 e6 Nf1 c6 Bg7 Rc5 Rb4 Qd8 Bc3 e7 Qef7 Qe8 Re4 Qd8 Re5 e8B Bb4 Qe7 Be6 Qd8 Kf5 Qe7 Qfg8 Bf7 Qe8 Bg6+ Kg4 Bd3 Bc2 Bb5 Kf5 Ba4 Kg6
1nb1bNB1/2p4Q/1B3q2/R1P1R1p1/B2Nq1N1/pr1P2K1/Nqq5/1n1k2qr w - - 0 1 legal: proof: g4 b5 e4 f5 h4 d5 a4 bxa4 h5 dxe4 h6 fxg4 Bg2 g6 Bf1 Bg7 hxg7 Qd4 Bc4 Qd5 Bf1 Qd8 b4 Kf7 c4 Ke6 f4 Kf5 Kf2 e5 c5 a5 b5 h5 d3 a3 b6 a2 b7 a4 Nd2 h4 Qb3 g5 Ndf3 h3 Qb2 g3+ Ke3 Kg4 f5 g2 Kf2 e3+ Ke1 a3 f6 e2 Kf2 e4 f7 h2 f8N Ne7 g8B Nd5 Rb1 a1Q Qg7 Qb2 Bd2 Nc3 Nh3 Qf6 Qh7 Ra6 Re1 Nb1 Ba5 Rb6 Rg1 Rb3 Bb6 Qg6 Nd4 h1B Nb5 Qe6 Nc3 Qc2 Na2 Qf6+ Ke3 Kg3 Nf2 Qfb2 Ng4 Qf6 Rc1 e1Q+ Be2 Qec3 Rce1 Q3b2 Rgf1 g1Q+ Rf2 Nd7 b8N Bf3 Nc6 Nb8 Bd1 Bg2 Qd7 Rh1 Nd4 Bh3 Qe7 Bd7 Qh7 Be8 Nh6 Bc8 Ng4 Nd2 Ke2 e3 Rf4 Kg2 Nb5 Kg3 Ra4 Kg2 Nd4 Kg3 Rf1 Nb1+ Ke1 e2 Ra6 Qg2 Ra5 Qgc6 Rg1+ Kf4 Kf2 Qa4 Kg2 e1Q+ Nf2 Ke3 Kg3 Qf1 Ng4+ Kd2 Rg2+ Ke1 Rf2 Qac6 Rf5 Qe4 Re5 Kd2 Bf3 Ke1 Bg2 Kd1 Bf3+ Qee2 Bc6 Qe4 Ba4 Qg1#
5R1B/b3R2K/Q1q3bR/Nn3Br1/1R1p2rP/k2nN2p/q3np1P/5Nbn w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 f6 axb4 g3 h4 Nc3 h3 Nb1 exf6 Bh6 f5 Bc1 Qh4 gxh4 f4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 g5 e4 b5 a4 d5+ Ke5 f5 c4 f3 a5 f2 a6 b3 a7 Kb4 c5 f4 c6 b2 c7 f3 Bg2 f1N Na3 b1N Ne2 g4 Ng3 d3 Qe1+ d2 Qd1 f2 Bf3 d4 Qe1 Nc3 Nh5 d1Q Qe2 g3 Bf4 g2 Ng3 Nf6 Nc4 Ne8 Ne3 Qa4 Bg4 Nd6 Kf6 Na6 Kg6 Rh5 e5 Nc5 e6 Nd3 e7 Rg5+ Kh7 Bd7 c8N Be8 Rb1+ Ka3 Rg1 b4 Bf5 b3 Be5 b2 Nb6 Qc6 Bh8 Bh5 e8R Ndb5 Re5 Bc5 Re7 Rag8 a8R+ Na7 Rc8 Nab5 Rf8 Rg4 Qc2 Ne2 Qc4 R8g5 Qe6 Kb4 Nbc4 Ba7 Na5 Ka3 Qc8 Bf7 Qa6 Bh5 Rc1 b1Q Rc4 Qa2 Rb4 Bf7 Ne4 Be8 Nd2 Nfg3 Rc1 g1B Ndf1 Nh1 Rc2 Qe4 Rc6 Bh5 Rg6 Qc6 Rh6 Bg6+
K4Brb/3q3q/7R/k1NQ2PR/3B1pp1/bn1b1rPN/Np1N1n2/2r2b1R w - - 0 1 illegal: No proof kernel
1bb4n/3KB1q1/3QR3/2Bp1BpN/p1qnR3/r7/1PBN2Pr/3nRnkr w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 axb5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 h5 e4 g5 c4 f5 b6 d5 b7 a5 Qe2 h4 Qd2 h3 Ne2 d3 Rg1 f3+ Nf4 f2 Ra4 Ne7 Qc3 d2 Qg3 d1N Bd3 f1Q Nd2 Ra7 Nh5 f4 Bc2 f3 Qf4 Qd3 Re1 f2 Kf6 Kd4 e5+ Qe4 e6 f1N Qd6 Nbc6 b8B Ng6 e7 Qhe5+ Kf7 h2 Ke8 Qe2 c5+ Ke3 Re4+ Kf2 Bc7 h1R Bd8 Nd4 c6 Ra8 c7 Qg7 Re6 Qc4 R1e4 Ba6 c8B Kg1 Kd7 Rh6 Re1 Nh8 R6e4 a4 Re6 Rb8 R6e4 Rb3 Re6 Qe5 e8R Ra3 R8e7 Qf6 R6e4 Bg7 R7e6 Qf7+ Be7 Be5 Nb3 Qg7 Be3+ Nf2 Nd2 Rh2 Qc6 Bb8 Qd6 Rh1 Ng3 R6h2 Nh5 Ne2 Bc5 Nd4 Bb7 Nd1 Bc6 Bb7 Bb5 Qb3 Be2 Qb4 Bg4 Qc4 Bf5 Bc8+
2r3br/R4Nb1/Q1qb4/P6K/2BkB2p/qR4RP/nNpp1Rn1/r3r1N1 w - - 0 1 legal: proof: d4 a5 c4 e5 g4 d5 b4 axb4 Be3 f5 cxd5 fxg4 d6 Nf6 d5 Ng8 Bd4 exd4 f4 Kf7 Kf2 Kf6 Kg3 b5 Kh4 c5 a4 h5 e4 g5+ Kg3 d3 d7 b3 d6 c4 a5 b2 f5 Ke5 f6 c3 f7 d2 h3 c2 Qf3 h4+ Kg2 g3 Bc4 b4 Ba6 g4 Ra3 b3 Ne2 Qb6 d8R Bg7 f8R Nf6 d7 Nh5 Qd3 Qc6 Bc4 Na6 Rg1 Nb4 Nbc3 b1Q Na4 b2 Rf2 Na2 Rb3 Qc1 Rdf8 b1R d8N Bb7 R8f7 Qa3 Nb2 Re1 Rc7 Bc8 Rcb7 Bf5 Ra7 Rc8 Nf7+ Kf6 Kh1 g2+ Kh2 Nf4 e5+ Kg6 e6 Kf6 e7 Bh7 e8B Bg8 Bd7 Ra1 Bf5 Re1 Rgf1 g1R Be4 Ra1 Rd1 Re1 Ng1 g3+ Kh1 g2+ Kh2 Qd7 Qd6+ Qe6 Qa6 Qc6 Rb1 Rb8 Rg3 Rc8 Nf3 g1B+ Kh1 Nd5 Kg2 Bh2 Ng1+ Ke6 Rb3 Bf4 Kf3 Bd6 Rd3 Kf6 Kg4+ Nf4 Re3 Rb8 Rg3 Rc8 Nh6 Ke5 Nf7+ Kd4 Kg5 Ng2 Kg6 Bh6 Kh5 Rb8 Nd1 Rf8 Rbb3 Rc8 Nb2 Bg7+
2qk1B2/1RNq4/1b2P3/3rBPRr/2BnNb2/qp3pNb/2p3q1/Kn3QB1 w - - 0 1 illegal: No proof kernel
2R2N2/5nb1/2qNpBRB/2Rr3p/2pn1P1b/3Pr2b/r2B2Q1/qk1b1BK1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 b4 Kd7 g4 Kd6 f4 Kd5 Kf2 Kd4 g5 h5 d3 a5 g6 c5 b6 h3 g7 e3+ Kg3 e2 Kf2 e1B+ Ke2 a4 b7 h2 b5 a3 b6 c3 Nd2 a2 Qc2 c4 Nh3 Qd5 Ne4 Bh4 Nhg5 Bh3 Nd6 e6 Nh7 Nc6 b8B Nh6 g8R Nf7 b7 Bg7 Rc8 Rd8 Rg1 h1B Rg6 Ra7 Rb1 a1Q Rb5 Ra2 Rc5 Be4 Qd2 c2 Nf8 Rd7 Bc7 Rd8 Ba3 c1R b8B Rb1 Qc2 Rb5 Ba5 Bf3+ Kd2 Be2 Bbc7 Rd7 Bd8 Bd1 Bg5 Rbb2 Bh6 Rb1 Bc1 Qf3 Bd8 Rb5 Rcg5 Re5 Be7 Re3 Rc5 Na7 Beg5 Nb5 Be7 Qc6 Beg5 Rg3 Ke1 Rf3+ Qf2+ Kc3 Bf6+ Nd4 Bd2+ Kb2 Qg3 Re3+ Kf2 Rd8 Kg1 Kb1 Qg2 Rd7 Nb5 Rd5 Nd6 Qe8 Bd8 Qb5 Bf6 Qc6
1N2NQ2/1B3n1R/2n1pb1B/Pn2P1Rp/2b3Rq/2rnr2b/1k1q1p2/3R1K1B w - - 0 1 illegal: No possible last move
R1R1R1B1/1r2b1b1/1q1p4/1B1q1Nr1/b3n1b1/KP6/pQBp1nNP/2n1B2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kd6 Kc2 Ke5 Kb3 Ke4 c5 g5 b6 a5 b7 f5 c6 d3 e3 g3 c7 g4 Bh3 d2 Ra3 d6 Ne2 Kf3 e4 g2 e5 g1N e6 g3 e7 a4+ Kc3 g2 e8B Ra5 b3 Nc6 Kb2 Rh7 b8R Nb4 Ra2 a3+ Kc3 Nf6 Rb2 a2 Rc2 Nd3 Ra8 Be7 Bf7 Nf2 Kb2 N6e4 Ng3+ Ne2 Na3 g1B Nc4 Rb5 Bg4+ Kg2 Ka3 f3 Bb2 f4 Bf6 Nc1 Bg8 Rg5 Bf5 Bd7 c8B Qb6 Bg6 Bg4 Ne3+ Kh3 Bb2 Nc5 Qe2 Nfd3 Bce6 Bd8 Ngf5 f2 Bg6f7 f1B Ng7 f3 Bc4 f2 Bg6 Bg2 Bc3 f1Q Be5 Qf5 Bg3 Bc6 Ba6 Ba4 Bb5 Bf2 Re1 Qd5 Be4 Bg1 Ngf5 Rb7 Qf3 Bf6 Qf4 Bd8 Qe5 Bf2 Qb2 Bf6 Nd1 B2d4 Nde3 Bg7 Re2 Bdf6 Be1 Nf2 Rc3 Bd8 Bc2 Bdf6 Nd1+ Kg2 Ree8 Be7 Nde3+ Kg1 Ng2 Nce4 Rcc8 Kh1
2nK4/nB6/qpr3pN/R1R2N2/2nPq1Nn/Q2Rp2r/1b1B2P1/2qN1b1k w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 b4 axb4 h4 fxe4 h5 Qd6 h6 Qxh6 Na3 Qh4 Nb1 Qh2 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 e5+ Kc4 c5 Kb5 g6 Kb6 h4 a4 h3 a5 c4 f5 b3 f6 c3 a6 e3 a7 e2 f7 e1Q d3 b2 Nf3 e4 Qb3 c2 Ra2 Bg7 f8N Nc6 Bg5 c1Q Qa4 Nge7 Nc3 b1N Bd2 Na3 Nd4 Ke5 Kc7 Nc4 d6 b6 d7 e3 d8N Kf4 Nf7 Kg3 Qb5 Qe2 Nd1 Ba6 Qb4 Nc8 Rc2 Qg1 Qa5 h2 Nd7 Rh3 Nf6 Qf3 Kd7 Qe4 Nh6 Rb8 a8R N6a7 Be2 Qf1 Bf3 Bh8 Rg1 h1N Ndf5+ Kh2 Qa3 Ng3 Kd8 Rb7 Rc3 Rc7 Rc2 Qe2 Re1 Qf1 Nfg4+ Kh1 Re2 Bc3 d4 Bb2 Rc3 Rc6 Rd3 Qe5 Bd5 Qe4 Rf2 Re6 Bb7 Rc6 Nd6 Qe2 Rf5 Bb5 Rc5 Nf5 Bb4 Nh4 Ndf5 Qec2 Bd2 Qa4 Qc3 Qa6 Qa3 N4d6 Rdc3 Bf1 Rd3 Nab5 Ra7 Nc4 Ra8 Qa4 Ra5 Nba7 Nf6 Qb5 Nfg4 Qa6
q3nr2/5q2/p2p1qp1/R1N1RR2/b1NPb3/P1B2N1k/6rq/QBnN2nK w - - 0 1 legal: proof: h4 b5 f4 e5 c4 exf4 h5 bxc4 h6 g6 g3 Bg7 hxg7 fxg3 d4 Ke7 b4 Kf6 e4 c5 b5 h5 a3 d6 e5+ Kf5 e6 c3 b6 c2 b7 a6 e7 c4 e8N h4 Bf4 c1Q Be5 c3 Bf6 h3 Be5 g2 Kf2 c2 Ra2 h2 Bg3 Nc6 b8N Nf6 g8R Qf4+ Nf3 Kg4 Qd3 c1N Re2 Kh3 Qd1 Bd7 Nd2 Ne5 Rf8 Ba4 Ng7 Ne8 Nc4 f5 Nd7 Qc8 Rg1 h1B Nc5 Rb8 Rf7 Rf8 Re1 Rb6 Bd3 Qa8 Bb1 Rb2+ Re2 Ra2 Re1 Qg5 Kg1 f4 Nf5 Qf6 Nfe3 Rb2 Rf1 Rd2 Be1 Ra2 Nh4 f3 Bc3 Rd2 Rb7 Qf7 Rb5 Ra2 Ra5 Rc2 Kf2 g1Q+ Ke1 Qg2 Rff2 Qh2 Kf1 Qf6 Qe1 Rb2 Nd1 Ra2 Rb2 Qf7 Rbb5 Rc2 Re2 f2 Re3+ Nf3 Re5 Ng1 Rf5 Be4 Nf3 Kg4 Re5 Qhf4 Kg2 f1Q+ Kh1 Rg2 Qd2 Qg3 Qb2 Kh3 Qa1 Qgf2 Nd7 Qa2 Rbd5 Qff2 Nc5 Qh4 Rf5 Qhf6 Rde5 Qf2 Qb2 Qg3 Qa1 Qh2+
kn1b2K1/BqR4R/pp1B2pq/N2b2P1/P6Q/2nr2q1/1qrrB3/4NN1B w - - 0 1 legal: proof: f4 c5 g4 h5 c4 d5 g5 e5 b4 dxc4 bxc5 exf4 Qb3 Qd7 Qf3 Qd8 Qg4 hxg4 Kf2 Kd7 h4 Kc6 e4 f5 d4 a6 a4 f3 Kg3 g6 Kf4 f2 Ke5 f4 d5+ Kc7 c6 g3 d6+ Kb6 c7 Ka7 h5 c3 d7 g2 Ke6 c2 Kf7 f3 h6 Bg7 e5 Nf6 h7 Bf8 e6 Be7 Bf4 c1R Be2 f1Q Nd2 f2 Ngf3 g1Q Ne1 Qh3 Nf1 Qh6 Bd6 Rc2 Rc1 Nd5 Rh2 Re8 h8Q Nc3 Qh7 Bf6 e7 Qg3 Qh8 Rg8 e8N Be7 Qd4+ b6 Qh4 Bb7 c8B Bf3 Bb7 Qc7 d8B Bg2 Be4 Qb7 B8c7 Bd8 Rh3 Rh8 B4f3 Rh7+ Kg8 Rf7 Bc6 Rf3 Rh2 Rd3 Bd5 Bh3 Bh1 Bg2 Rh3 Rcd2 Rc2 Nc6 Rc1 Rc8 Bb8+ Ka8 Ba7 Nb8 Rc2 Nd1 Rc7 Nc3 Ba3 Bf3 Nd6 Be4 Nc4 Bd5+ Rf7 Rc6 Bd6 Rc7 Na5 Rc4 Ne3 f1Q Rh2 Qff2 Nf1 Rb4 Rh3 Rbb2 Rh2 Bf3 Rd7 Rbc2 Rc7 Qd4 Rf2 Bg2 Rff7 Qb4 Rg7 Qb2 Rh7 Bd5+
1K2R3/2n1Q2P/P2N1q2/1Rr2p1q/1bB5/2B1n2k/BNpR1Rbp/2br2br w - - 0 1 illegal: No proof kernel
1n1bk3/BNqrN2p/2q5/1p5R/1np1bNn1/1P1Q4/1KRr1PBq/4R1nN w - - 0 1 legal: proof: h4 d5 e4 a5 c4 f5 cxd5 fxe4 h5 a4 h6 a3 b3 gxh6 Qc2 h5 Qc3 h4 Qb2 axb2 Kd1 c5 Kc2 e5 a4 b5 d4 e3 g4 c4 g5 h3 a5 h2 d6 e4 d7+ Kf7 d5 e2 g6+ Ke7 g7 e1Q a6 e3 a7 e2 Be3 Bb7 Nh3 Qc7 d8N Nh6 g8N+ Ke8 d6 Ng4 Nf4 Be7 Nd2 b1N Kb2 Na3 Bg2 Nc2 Nf1 Be4 Ng3 Nb4 Nb7 Qg1 Re1 Bd8 Ne7 Rg8 Bc5 Rg7 d7+ Kf7 Rc1 e1N Rc2 Nf3 Bd4 Qd1 Re1 Ng1 Nh1 Qd2 Bc5 Qd5 Bd4 Qdc6 Bc5 Bd3 Re5 Be4 Rh5 Rg5 Bb6 Rd5 Be3 Rd2 Bb6 N8a6 Be3 Rc8 a8R Nb8 Ra1 Kf8 Re1 Kf7 Ng3 h1Q Ba7 Qh2 Nh1 N8a6 Re2 Ra8 Re1 Nb8 Bc5 Ra1 Ba7 Rad1 Ng8 Bg5 d8Q Bf6+ Qd4 Bd8 Ne7 Ke8 Qe3 Rd7 Qd3 Rd2
4NB2/q1rRr1P1/N1n1n3/4qRb1/4NrQ1/pKrB2p1/Pb1B3p/N4b1k w - - 0 1 legal: proof: g4 c5 e4 f5 h4 d5 b4 dxe4 bxc5 g5 Qe2 gxh4 g5 Bg7 Qd1 Bf8 Qg4 fxg4 Kd1 Kf7 d4 Ke6 f4 Kd5 c6 b5 c7 h5 g6 a5 g7 e5 c3 b4 Kc2 b3+ Kb2 a4 f5 h3 f6 g3 f7 h2 Bd2 e3 c4+ Ke4 d5 h4 d6 h3 c5 a3+ Kc3 b2 c6 e2 d7 e1B Kc2 Qf6 d8Q Nh6 Bc3 Ra7 Nf3 Nf5 Qd6 Nd4+ Kd1 Ne6 Kc2 Ba6 c8N Be7 f8B Rc7 Qd2 Rh4 Nd4 Rf4 Nb3 Kf3 Qd7 e4 Bd3 Kg2 Nc5 e3 Rf1 h1R Kb3 e2 Bd2 h2 Nd6 Qe5 Ne8 Bg5 Qc8 Bb5 Na6 Bf2 Qd7 e1R Qc8 Bd4 Rf3 Rg4 Rf5 Rf4 Qd7 Re3 Qc8 Re7 c7 Rc1 Qd7 Rc6 c8N Kh1 Ncd6 Rc7 Ne4 Nc6 Qc8 Ned8 Qe6 Ref3 Qg6 Ne6 Qh5 Re3 Qg4 Ref3 Be1 Bc3 Nbd2 Bd4 Rd1 Bc4+ Ka4 b1Q Nb3 Bb2 Na1 Qc1 Rd2 Qcc3 Rd1 Qcd4 Bd2+ Qg1 Bb1 Bf1 Bd3 Qa7 Kb3 Re3 Rc1 Rff3 Rc4 Rf4 Rd4 Re1 Rd8 Rc1 Rd7 Rc3+
1q1B2q1/1Nr3Pp/2RnN1b1/1K1pN1P1/Qn1bR3/4p3/2Nq2qr/4RBrk w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 g4 Ke6 f4 Kd5 a4 e5 a5 b5 f5 d3 g6 b3 Kc3 e3 f6 Ke4 g5 d5 g7 b4+ Kb2 d2 c4 e2 a6 e1Q c5 Bf5 a7 Ne7 c6 Qf2 f7 Na6 c7 Nc8 Rh2 Nd6 c8R Bg6 Rh3 Qg2 Na3 Be7 f8N Bf6 Nd7 Qg8 Rc6 Kf4 Re3 e4+ Rcc3 Bd4 Nf3 Kg3 Nfe5+ Kh2 Nc5 Kh1 Nb7 Re8 Qc2 d1Q a8N Qdd2 Nc7 Re7 Ne6 Rc7 Re1 e3 Rb1 Qa8 Ra1 Rf8 Ra2 Rf2 Ra1 Qe2 Bd2 Qg8 Qe4 Qd1 Nc2 Qe2 Ra4 Qd3 Kb1 b2 Ka2 b1R Rc6 b3+ Ka3 b2+ Bc3 Qd1 Ba5 Qd2 Rb4 Rc1 Ka4 b1Q Rbc4 Nb4 Bb6 Rd7 Bd8 Rc7 Ka5 Rf4 Ka4 Rh4 Qg4 Rh2 Qf4 Bb2 Re4 Bd4 Nbc5 Qg4 Re2 Na2 Bg2+ Kg1 Qf8 Qb8 Nb7 Nb5 Qa3 Nd6 Qb4 Rf1 Re1 Qf3 Bh3 Kh1 Ka5 Rg1 Bf1 Qg4 Ka6 Qgg2 Qa4 Nb4+ Ka5 Nf7 Kb5 Nd6+
3KR3/q1N2np1/3kN3/2NB3B/r1pbnr1P/2rQq3/PBBpbR2/1b5r w - - 0 1 illegal: No proof kernel
4N1n1/2B1R1p1/pr2b1K1/N2k1nn1/2N1R3/Pp2r2q/R1Q2P1N/Bq1rbn2 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 Ke2 Kd7 Ke3 Kc6 Kf4 b5 Kg5 e5+ Kg6 e3 c4 b4 d4 e4 h4 b3 d5+ Kd7 d6 Kc6 h5 g3 d7 a6 a3 e2 h6 e1N h7 e3 Nd2 e2 Ra2 Qe7 d8B Qc7 Bb2 Be6 Ba1 Qc8 Bc7 Nf3 Qc2 e1R Rh4 Ng5 Re4 Rd1 Ngf3 g1Q Nh2 g2 Ng4 Nh6 Nh2 Rg8 h8R Nf5 Rh3 Nd7 Rhe3 Nf6 Re1 Rb8 R1e2 Kd7 c6+ Ke7 c5 Rb6 Nc4 Qh1 Qd3 g1N Qc2 N1f3 Na5 Nd2 Rg4 Qb7 Bb8 Rh8 c7 Qbf3 c6 Kd6 Qc1 Rf1 Ra4 Rh3 Qc2 Bc4 c8N+ Kc5 c7 Ng8+ Nd6 Qfg2 Re6 Re3 c8N Qh3 Ne8 Qe4 Qb2 Rd1 Bc7 Qb1 Qc2 Nf1 Ncd6 Be7 Rb4 Bf6 Ra4 Bc3 Re7 Be6 Re4 Kd5 Ndc4 Be1
4q3/1kqN1p1r/1r1B1n1Q/np5n/Rq1K1R1P/1b3pnB/1P3N2/N1B2b1B w - - 0 1 legal: proof: f4 h5 d4 e5 d5 exf4 d6 cxd6 Nh3 d5 Ng1 d4 g4 hxg4 a4 b5 a5 Ba3 Nc3 Bc5 Nb1 Bb6 axb6 Rh6 Nd2 Rh7 Nb1 Rh8 Kd2 g5 Kd3 a5 h4 d5 e4 Kd7 c4 Kc6 e5 g3 e6 g2 c5 g4 b7 f3 e7 a4 e8N a3 Qe2 g3 Bh6 a2 Qe3 Qc7 Na3 Nf6 Ng7 Bh3 Bg5 Rh7 Re1 a1Q Rc1 Ra6 Ne6 Rb6 Ne2 g1N Nf8 g2 Rc2 Qe1 Rc4 Qb4 Ng3 Ne2 Ne4 g1N Bg2 Ng3 Nc2 N1e2 Ra1 Ngh5 Nd7 Neg3 Bh1 Bg2 Ra4 Bh3 Na1 Bf1+ Kc2 d3+ Kd1 d2 Kc2 d4 Nf2 Ne2 Kd3 d1B Qc1 Bb3 Qf4 Na6 b8B Kb7 Qe3 Qe5 Bf4 Qe8 Bbd6 Nb8 Qe6 Nc6 Bc1 Na5 c6+ Ka8 c7 Neg3+ Qe2 Kb7 c8B+ Ka7 Nb8 Ka8 Bh3 Kb7 Nd7 Qa3 Kd2 d3 Kc3 d2 Qe3 d1Q Rf4 Qc2+ Kd4 Qc7 Qe6 Nfe4 Qg6 Nef6 Qh6 Qb4+
nr4Rq/1nKNnpnk/pP3B1r/5p1b/1RNq1P1q/2N5/2Bb4/RR5Q w - - 0 1 illegal: No possible last move
7r/nk1p1QpN/R1p5/3B2BN/n1RqP1P1/1q2nnN1/1r1bB2K/1rb2B2 w - - 0 1 illegal: No proof kernel
q1nB1kNN/n1rp1P1K/N3r3/4p1n1/3qB1b1/4Qnb1/p1R1P1B1/1RN2b2 w - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 e5 Kd3 g5 Ke4 a5 Kf5 h5 Kg6 d3 c4 a4 f4 h2 b4 h4 c5 h3 c6 g4 c7 a3 b6 a2 b7 g3 f5 d2 b5 g2 f6 Ra4 b6 Be7 Qb3 d1Q Nd2 Ra6 Rb1 Nc6 b8N Bb7 c8B Na7 Ngf3 g1N Nh4 Bg2 b7 Re6 Nc6 Nf3 b8N Bb4 Bb7 Ne7+ Kg7 Qc8 Rg1 h1N Na6 h2 Ng6 Nf2 Ba8 Rf8 Nh8 Nh3 Kh7 Ba5 Bb7 Qa8 Qc3 Bb4 Nb3 Qd4 Bg5 Ba5 Qe3 Be1 Rb2 Bg3 Rc2 Rg8 Nd8 Rf8 Be4 Rg8 Nc6 Rf8 Ng6 Kf7 Rh1 Rc8 Nh8+ Kf8 f7 Rc7 Bh4 Nec8 Bd8 Nh4 Rg1 h1B Ne7 Bf3 Ng8 Bg4 Qg5 Nf3 Qe3 Nf4 Bh3 Bg2 Rb1 Bf1 Bg2 Nh3 Nc1 Nhg5+
2Kq3n/RB1ppN2/2PPpn2/B1Rr3N/7Q/N1n1r3/1qbN3b/k1B1q1n1 w - - 0 1 legal: proof: e4 c5 b4 g5 h4 gxh4 e5 b6 e6 fxe6 a4 b5 axb5 cxb4 Ke2 Kf7 Kf3 Kf6 Kf4 h5 g4 a5 d4 h3 c4 h2 d5 h4 d6 h3 f3 b3 c5 b2 b6 a4 b7 a3 Ba6 a2 Qe1 Rh5 Ke4 Bg7 f4 Nc6 b8B Bb7 f5 Ne5+ Kd4 Nf7 Na3 b1N Bc7 Be4 c6 Nc3 Kc5 Ke5 Kb6 Kd4 Kb7 Be5 f6 Nh8 f7 Nf6 f8N Bc2 g5 Bf4 g6 Rd5 g7 Be5 Rb1 a1Q Rb5 Qb2 Nf3+ Kd3 Rf1 h1Q g8N h2 Qh4 Bg3 Rf2 Qe1 Nh6 h1N Ba5 Bh2 Nh7 Ng3 Nd2 Nge2 Nf7 Ng1 Re2 Qb1 Re4 Qb2 Ra4 Rb8+ Ka7 Rb6 Bb7 Qc7 Rc5 Rb3 Ka8 Qb6 Kb8 Bd1 Nb5 Kc2 Kc8 Ra3 Nhg5 Rb3 Nge4 Ra3 Ng3 Rb3 Nde4 Kb1 Na3+ Ka1 Nd2 Bc2 Nh5 Nce4 Bb4 Re3 Ra7 Nc3 Ba5 Qd8+
3R2N1/n1P3R1/brq1P3/B1pn4/1b2k3/p3BpBb/2qbr1N1/r1Q2NKB w - - 0 1 illegal: No proof kernel
2n1n3/2PK4/2p3n1/pqQqrNbB/bP1b4/B1R2Np1/3R1rN1/1kB3Nn w - - 0 1 illegal: No proof kernel
r3r3/r1PpqkP1/R1bqn3/4R1pq/5bNR/N1p2Bn1/1B1QNK1N/4r3 w - - 0 1 illegal: No proof kernel
N2Rb3/q1p3n1/Rq1rN1B1/r2bBB1p/2Pp2q1/P2Rr2n/Q1Kq1k2/4R3 w - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 Bb2 axb4 Bc1 f5 h4 g5 Qd2 Bh6 Qd3 fxg4 Qd1 g3 Qd3 g4 Qd1 Bg5 hxg5 Kf7 Ba3 Ke7 Bc1 Ke8 Kd2 Kf7 f4 Ke6 c4 Kf5 a3 Ke4 e3 b5 g6 h5 g7 d5 f5 b3 f6 g2 f7 b2 f8R g3 Qc2+ d3 Rf5 b4 Qb3 Na6 Nf3 g1Q Be2 g2 Nd4 Qd7 Nc2 Nf6 g8R Nh7 Rgg5 Re8 Rg7 Nc5 Ra2 Ng5 Rg8 Bb7 Bg4 Nh3 Nd4 Ra5 Rf6 Ne6 Qc2 Re7 Rd8 Ng7 Ra6 b3 Ne6 Qc6 Kc3 Qb6 Bf5+ Kf3 e4 d2 e5 d1R Bf4 Qgf2 Rf1 g1Q Re1 Qg4 Ra1 Rd4 Rd1 Kg2 Rd3 Bc6 Qe2 Be8 Kd2 Qb4+ Nc3 b1B Bg3 Bc2 Re1 b2 Bf4 Qb6 Na4 b1Q Bg3 Qa7 Nb6 Qb4+ Kc1 Bca4 Qa2 Bac6 Na8 Bb7 Rdd1 Kf3 Rd3+ Qe3+ Kc2 Qab6 Bh2 Kf2 Nf8 Qa7 e6 Qh6 Be5 Qe3 Rc3 Rd1 Rd3 Qeb6 Rb3 Rd3 Rc3 Re3 Rd3 Rd7 e7 d4 Ne6 Rdd5 Nf8 Rd6 Ne6 Bg6 e8B Bd5 Bc6 Be8 Bg6 Bg2 Bce4 Bh1 Bef5 Bf3 Nf4 Bd5 Ne6 Qd2+
1Kb1rrN1/2pq1PBb/1P4kb/7N/2qRnB2/5B2/prrB1p2/R3QR1n w - - 0 1 illegal: No proof kernel
3qr1n1/qp1k4/1r1B1q2/1N2Rpq1/1bR1N3/2Q2b1P/B1pNP2N/2bKBn2 w - - 0 1 illegal: No possible last move, all moves rejected
7q/RpN1NnRr/Pp1Q1qbP/1K2p2b/2B1RnNr/7k/b2B2r1/4b1R1 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 b4 c5 d4 cxd4 b5 Rh6 b6 axb6 Be3 Rh3 Bc1 Rh8 Kd2 Kf7 Kd3 Kf6 Kc4 d5+ Kb4 g5 f4 e5+ Kb5 d3 a4 d2 h4 d4 c4 d3 a5 g3 h5 g2 c5 g4 h6 g3 c6 Be6 c7 Ne7 c8N Rh7 Nf3 g1Q Nc3 g2 Na4 Nbc6 Nc3 Ng6 Nh2 Bb4 Ne7 Qh8 a6 Rg8 Ra4 Ba2 Be2 Ba5 Re4 Qf2 Re1 g1R Ncd5+ Kf7 f6 Ke6 f7 Rg2 f8R Nd8 Rg1 Rg4 Rf7 Rh4 Nc8 Qf1 Rd7 Kf5 Nc7 Qf3 Qc2 Bb4 Qc5 Ba5 Qd6 d1B Re3 d2 Bc4 Qf2 Re4 Bf3 Re7 d1B Be3 Be1 Bd2 Bg4 Rd7 Bh3 Re7 Bh5 Rd7 Nf8 Re7 Rg2 Rg7 Nfe6 Ne7+ Kf6 f5 Qf4 Rf7+ Kg5 f6 Bf5 Rg7+ Bfg6 f7 Bg3 f8R Nf7 Nf3+ Kg4 Ra8 Kh3 Nh2 Be1 Ng4 Qf6 Ra7 Nf4
2N4N/1pB3Pr/B2Nb3/1q1R2p1/b1nR4/Nrb5/rpP1n2K/1rkqQR2 w - - 0 1 illegal: No proof kernel
kb2R2r/1p2p1p1/n1RrR2N/1q3K1b/3RQ3/1r3BqB/2PP1b1B/5Nnb w - - 0 1 illegal: No proof kernel forced: wxDB
N1krR3/1ppq4/qQn1RN2/B3rr1p/1qR1BPP1/n5r1/b1N2b2/3N3K w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 g4 h5 a4 e5 f4 h3 Kf2 b3 a5 b2 d6 h2 Kg2 e3 d5 e2 a6 e1Q a7 e4 Qd4 e3 Nc3 b1Q Ne4 e2 Ra4 Qb5 Nh3 Nf6 Nhf2 Rh7 Qb6 Ne8 Nd1 Nc6 Rc4 Rf7 Bd2 Qa6 Ba5 Qb4 Rg1 e1R Bd3 Qe7 Kh1 Rf5 Nf6+ Kd8 d7 Ree5 Bc2 Nd6 Be4 Nb5 Re1 Na3 Re2 Rb8 a8N Qg7 Re3 Bc5 Re1 Bf2 Re2 Ke7 d8N Be6 Re3 Bf7 Ne6 Rd8 Nd4 Be6 Nc2 Qf7 Nh7 Kd7 d6 Kc8 Nf6 Qe7 Rcc3 Ba2 Rc4 Qh7 d7+ Kb8 Kg2 h1R Re1 Rg1+ Kh2 Rg3 Kh1 Rc8 d8R Qd7 Re8 Rd8 Bd3 Rb5 R1e6 Rbe5 Be4 Kc8
2B4N/Ppq5/B1N1nBbQ/1pr2knP/1R1prN1n/5N2/1b1nq2q/4K1R1 w - - 0 1 illegal: No possible last move, all moves rejected
1k1n2N1/b1N3nr/3p2B1/1Nn2BRp/r3Pp2/1nNqQ2K/1RbPn2B/4n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 f5 c4 a5 g4 h5 Kg2 a4 e3 f3+ Kh2 f4 c5 h3 g5 b3 g6 f2 c6 b2 c7 a3 g7 a2 b6 Ne7 g8N Nbc6 b7 Nf5 b8N Rh7 Bb5 Ng7 Qg4 Ra4 Bf1 Bc5 Nc3 b1N Qd1 Ba7 Qf3 Na3 Rb1 a1N Na6 Nb3 Nb5 Nc2 Bd3 Ne1 Ne2 Bb7 c8B f1N+ Kg1 Ba8 Nec3 Ng3 Kh2 Ne4 Rb2 Nec5 Rg1 Bb7 Rg5 Ba8 Kg1 h2+ Kf1 h1N Bg6+ Kf8 Kg1 Ng3 Kh2 Ne2 Kh3 Bb7 Nac7 Ba6 Nd6 Bd3 e4 Bb1 Ndb5 Bc2 Nf6 Ke7 Qe3 d6 Bg4 Qb8 Ng8+ Kd8 B4f5 Qa8 Ra2 Qc8 Ba3 Qd7 Bb4 Kc8 Rb2 Kb8 Ba5 Nd8 Bb6 Qc6 Qg3 Na6 Bg1 Qd5 Bh2 Nac5 Qe3 Qd3
3B2q1/R2NN2k/2NP1p2/nbr3pn/Bb2r1K1/3P1QR1/2pnBr2/4n1Nr w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 c5 e4 b5 a4 g5 h4 c4 d3 c3 h5 c2 h6 b3 h7 f3 Kg3 b2 a5 f2 e5 b4 a6 b3 a7 Bb4 e6 Kf8 e7+ Kg7 e8B Nc6 d6 Nf6 Rh6 Na5 Bg2 f1R Nd2 b1R Rh3 b2 Nc4 Ba6 Bd2 Bb5 Qf3 Rc8 a8N Rc5 Ne5 Rf2 Nc6 Re1 Bf1 b1N Nb6 Re4 Be2 Qb8 Bd7 Qg8 Be8 Kg6 Nd7 Kg7 Bc3 Nd2 Bd4 Rc4 Bb6 Rc5 Bd8 Kg6 Rh2 Kg7 Rg2 Nh5+ Kh2 g3+ Kh3 f6 Ra2 Nac4 Ra8 Na5 Ra7 Re3 Kg4 Re6 Rh2 g2 Rh3 Kh6 Rg3 Re7 Bf7 Re8 Bb3 Kg6 Nh3 g1N Ba4 Re3 Qh1 Ngf3 Ng1 Ne1 Qd5 Qe8 Qf3 Re4+ Qf4 Rf8 h8N+ Kh7 Ng6 Rf7 Nge7 Qg8 Kh3 Rg7 Qf3 Rg6 Qg4 Rh6 Qf3 Nf4+ Kg4 Rh1 Qe3 Nh5+ Qf4 Ree5 Qf3 Re4+
2n2b2/n2RP1pp/1B1qrb1R/Bb3N1B/1R3PNp/krQ4b/4B2r/4r1K1 w - - 0 1 illegal: No proof kernel
2Rbr1r1/1PB1N2b/Q2Kp1Np/2r4P/5Bnr/qBb3R1/Nk1np1B1/4b3 w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 g5 f4 a5 c4 e3 h4 b3 d4+ Kb4 b6 e2 c5 b2 b7 a4 d5 g3 f5 a3 c6 a2 c7 g4 f6 g2 f7 g3 d6 Na6 d7 Nh6 Qe1+ Kb3 Ke6 Ng4 Na3 b1R Nf3 g1B Nc2 g2 Bf4 Bf2 Nfd4+ Kb2 Rg1 Rc1 Qa5 Be1 Nb4 Rc5 Rc1 a1B Nf5 h6 h5 Rg8 Na2 Bg7 f8N Bf6 Rh1 g1R Rh3 Rh1 Rg3 Rh4 Ng6 Qe8 Bg2 Qf8 Nd4 Rb8 Nc6 Bg5 Be3 Qf3 Bf4 Qa3 Qa4 Rb5 Qa5 Nc5+ Kd5 Re8 d8B Bf5 c8B Nb3+ Rc5 Bc2 Be6 Nd2 Bdc7 Rg8 Qa6 Rbe8 Bf7 Bf6 Ke6 Bd3 Rc1 Rc5 Kd7 Bc3 Bb3 e6 Kd6 Bf6 Rc4 Bd8 Nce7 Kb1 Rb4 Bc3 Rb6 Kb2 Rc6 Nf6 Bb8 Bc2 Rc8 Ng4 Bc7 Bf5 Ne5 Bh7 N5g6 Kb1 Qa4 Ka1 Qa6 Kb2
B1BR4/q1Q5/1BrpRr1K/1Rrr4/N4rp1/2b4p/1qkn1PnP/q4R1N w - - 0 1 legal: proof: e4 a5 d4 c5 b4 cxd4 e5 axb4 e6 b6 Kd2 Bb7 Ke1 Bf3 gxf3 fxe6 f4 e5 f5 e4 Ke2 Kf7 c4 Kf6 a4 Ke5 c5 h5 f6 g5 f7 e3 Kf3 b3 a5 d6 c6 b2 c7 h4 Kg4 Ke4 c8R e5 a6 e2 a7 e1Q Bb5 h3 Ba4 d3 Rc7 b5 Bd2 b4 Qc1 b3 Rb7 Rh4+ Kg3 Qd7 Rb6 Nf6 Be3 d2 Bc5 Kd3 Na3 b1R Ra2 d1R Bc6 e4 Bb7 b2 Ra1 e3 Bb4 e2 Qc6 Rbc1 Bc8 b1Q Qc5 Ng4 Nb5 Ne3 Bd2 Ng2 Ra4 Na6 Nc3 Rf4 Re4 g4 Rb5 Qb2 Re6 Bg7 f8R Kc2 Be3 Rd5 Na4+ Bc3 Qc7 Nc5 Rd8 Nb3 Bb6 Rb8 a8B Nd2 Ba7 Qf1 Bb6 e1R Ne2 Rc5 Rg1 Red1 Rh1 Qe1 Rf1 Qg7 Qc6 Qa7 Qc7 Ne3 Kh4 Rc6 Kg5 Ng2 Qg7 Rb7 Kh5 Rbf7 Ng3 Qe5+ Kg6 R7f6+ Kh7 Qa1 Qc7 Qd4 Kg7 Qb4 Nh1 Qbb2 Bab7 Ne4 Ba8 Rd5 Kh7 Nd2 Kg7 Re1 Kh7 Ree5 Kg7 Rdc5 Kh7 Red5 Kg7 R6f5+ Kh6 Rf6+
1B1B4/B2Qn2B/4Rnbn/K1p1bRnb/R2n2Np/q2P1p2/3q1P2/k4rN1 w - - 0 1 legal: proof: c4 b5 h4 g5 a4 gxh4 Qc2 bxa4 Qd1 a5 d3 Ra6 c5 Rd6 e3 Rd4 c6 dxc6 exd4 c5 Be3 c4 Bd2 Kd7 Bc1 Ke8 Kd2 Kd7 Kc3 Kc6 b4 Kb5 g4 h5 d5 f5 d6 c5 d7 e5 g5 h3 g6 a3 g7 a4 Bb2 h2 Qg4 f4 Nf3 e4 Qg3 a2 Ne1 e3 Nd2 a3 Qh3 Ka4 b5 e2 b6 Nf6 g8R Nc6 b7 Bd6 b8B Qa5+ Kc2 c3 d8B Ne7 Rg3 Be5 Rgg1 Bg4 Nef3 e1N+ Kc1 c2 Nd4 Nf3 Be2 Ng5 Rb1 a1Q Nf5 a2 Nf3 Kb3 Ba7 h4 Re1 Re8 Rhg1 h1B Nh6 Bh5 Ng4 Qa3 Kd2 c1N Rg2 Rg8 Ng1 Bg6 Bf3 Ne2 Ba8 Ng3 Be4 Ngf5 Rbc1 Nh6 Rc4 Qb1 Ra4 a1N Bc1 Bh5 Bh7 Ka2 Rg3 Re8 Rf3 Nb3+ Kd1 Qa1 Kc2 Qd4 Bd2 Qe3 B2a5 Bg6 Bac7 Rg8 Re2 Ka1 Bcb8 Rg7 Nh2 Bg2 Qd7 Bh5 Ng4 Rg6 Rg3 Be4 Rf3 Rg8 Qc7 Beg6 Qd7 Bd6 Kc3 Qd2+ Kc4 Be5 Kb5 Nd4+ Ka6 Bd6 Re6 Be5 Re3 f3 Re4 Rg7 Rf4 Neg8 Rf5 Re7 Qd5 Rb7 Qd6 Rb1 Qd7 Rf1 Kb6 Ne7 Ka6 Qe2 Ka5 Qd2+
RRr1k2B/N3pq1R/1nq1PP1b/nN1n2rq/8/p2B1Q2/2R1N1Kp/3n2n1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h3 g5 Na3 g3 Rh2 g4 Bd2 g2 Rh1 g3 Nb1 Bb7 Bh6 Bf3 Bc1 Bg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 f4 h5 b4 d5 e4 a5 c4 d3 f5 h4 b5 h3 b6 h2 g5 d2+ Ke2 a3 Kf3 d4 c5 a2 b7 a4 g6 d3 e5 Qc7 e6 Bh6 c6 Ra5 g7 Nf6 Na3 Nbd7 Nb5 Nd5 Bb2 N7b6 Ne2 g1Q b8R+ Qc8 c7 g2 Rc1 a1N Rc2 a3 Bc3 Qd4 Rg1 Qf6 g8R+ Qf8 Rg7 Nb3 Rh7 Qf7 Kf2 Rg8 Bh8 Rg5 f6 Ra8 Kf3 Na5 Kf2 Qd8 c8N Qd7 Nca7+ Qc8 Qc1 d1Q Qe3 d2 Qb3 Qa1 Qf3 Qe5 Nc1 Qf5 Bd3 Qe5 Rd1 g1N Ne2 Qf5 Rb1 d1N+ Kf1 Qg4 Rb4 Qgh5 Ra4 Re5 Rb7 Qc6 Kg2 Rc8 Rb8 Nb3 Ra6 Na5 Ra8 Nbc4 Rb6 Rf5 Rb7 Ncb6 Rbb8 Rg5+
2b1qR1b/1NBNp3/BK4nb/1Bpp1P1Q/2nPk2q/1nn1n3/2N4r/R6N w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c4 gxh4 Qa4 b5 Qa3 Ra5 Qf3 b3 Qe2 b4 Qd1 Rb5 cxb5 Ba6 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 d5 f4 h5 a4 e3 g4+ Ke4 f5 b2 g5 e2 a5 e1B g6 b3 b6 h3 g7 h2 a6 h4 a7 h3 a8N Nc6 b7 Na5 b8N Qe8 Nd7 Nh6 g8B Ng4 Bb5 Ne5 Bf7 Ng6 Qh5 Nc4 Ne2 Bh6 Na3 b1N Be6 b2 Nab6 Nc3 Na4 b1N Nc2 c6 Rg1 h1Q d4 h2 Bg5 Nbd2 Bf4 Bh4 Bc7 Bf6 Rgb1 Rh7 Ba6 Be5 Rb8 Bh8 Ra8 Qe1 Bf7 h1N Ng3+ Kd3 Be6 Nf2 Nh1 Nfd1 Rb8 Ke4 Bb5 Nce5 Kb6 Nb3 Ra8 Ne3 Nac5+ Kf4 Nb7 c5 Ba6 Qh4 Bf7 Ke4 Rb8 Qf8 Be8 Qg8 Nf8 Qf7 Beb5 Qe8 Nd7 N5c4+ Kc6 Qf6+ Bd6 B6g7 Rd1 Qg8 Qg5 Rh2 Qh5 Qh4 Bc7 Bh6 Ra1 Qf7 Ne5 Be6 Rf8 Bc8 Nd7 Na3 Kb6 Qg8 Rf7 Qe8 Rf8 Nac4+
q1K3QB/2R3NP/n6N/b1pBn3/6R1/rpqB4/1Pbpq2q/n1Nk1Nq1 w - - 0 1 illegal: No proof kernel
nRNkb1n1/1bb1R2P/R2Kp1qQ/3N1R1n/3pP2n/3B2r1/1p3Bn1/q5N1 w - - 0 1 legal: proof: f4 b5 d4 c5 g4 cxd4 b4 a5 g5 axb4 g6 e6 f5 d6 f6 Ra7 Qd2 Re7 fxe7 Kd7 Qd1 hxg6 Bh3 g5 Bf1 g4 Kd2 g5 Kd3 f5 e8N d5 h4 f4 a4 g3 c4 b3 c5 g2 a5 g4 e3 f3 a6 f2 a7 b4 a8R g3 h5 b2 h6 b3 h7 Qa5 c6+ Kd8 Ra7 Bb7 Qe1 Bd6 Qd2 Na6 Rh2 Nc7 Rh1 Na8 Nh3 g1Q Ng7 g2 Ne8 Bc7 Nd6 Qa2 Be2 f1N Nc3 Ng3 Nc8 Nh5 e4 b1B+ Qc2 b2 Be3 Qa4 Bf2 Ba2 Rf1 Bb3 Qd2 Qa1 Qh6 Ba4 Ra6 Qh2 Rd1 g1N Rd2 Nf3 Rf1 Nh4 Ng1 Qg2 Rc2 Qg6 Rcc1 Bb8 c7+ Kd7 Na7 Bac6 c8R Bc7 Rb8 Ba4 Nc8 Kd8 Bg3 Be8 Rf5 Qa2 Bf2 Qa1 Kd2 d3 Ke3 d2 Kd4 d1N Kc5 d4 Nd5 Ne3 Bd3 Neg2 Rc2 Ne7 Rc4 Rg8 Rc2 Bb6+ Kd6 Rg7 Rc7 Ng8 Re7 Bc7+ Kc5 Qf6 Ra7 Rg3 Ra6 Bb6+ Kd6 Qg6 Qg5 Ba5 Qh6 Bc7+
n7/bR1r1B1n/K1n2Nn1/2p2kpb/1B5p/n1P1Pq2/1Q1qB2b/1NR2R1B w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 b4 a5 h5 axb4 Bg2 b5 Bh3 Ra6 Bf1 Rg6 hxg6 f5 Bf4 fxg4 Bd2 Qf6 Bc1 Qd8 Kd2 Ke7 Kd3 Kf6 a4 d5 f4 h5 f5 b3 g7 g3 a5 b2 e3 g2 c3 b4 a6 h4 a7 b3 a8B Rh7 Ra3 Nc6 Qh5 Bc5 Ra2 Nge7 g8B Ba7 Qd1 Ng6 Qe2 Rd7 Na3 b1N Qe1 b2 Be2 Nd2 Nf3 g1B Rh3 b1N Ra1 Bh2 Bf7 Nc4 Ne5 Nb6 Qd2 Qf8 Bb7 Na8 Rf3 Qd8 Rf1 Qf8 Kc2 d3+ Kb3 d4 Qb2 d2 Kc4 d1N Kb5 d3 Ka6 d2 Ng4+ Ke7 Nf2 Kf6 Ne4+ Ke5 f6 Nf2 Bd5 d1Q f7 Qd4 Nf6 Kf5 Ba2 Qd2 Bb3 Qh6 f8R Qh5 Bf7 Qf3 Re8 Ng4 Re4 Rd3 Rb4 Bd7 Rb3 Be8 Rb6 Rd7 Rb4 Nce5 Bbd5 c5 Rb7 Qf4 Bh1 Nc6 Nc4 Na3 Rb1 Qd1 Nd2 Qf3 Ra1 Nf8 Nb1 Nge5 Qa2 Neg6 Bb2 Nb5 Ba3 Nh7 Bb4 Na3 Qb2 Qc2 Nd2 Qd1 Rc1 Qe1 Nb1 Qd2 Bd5 Nge7 Bdc4 Bh5 Bf7 Ng6
1Q1q1q2/n1r1p3/n1R5/B1pq1PN1/kqBr1RBN/2P2r2/1B1b1p2/3KRq2 w - - 0 1 illegal: No proof kernel
1nB3N1/1rPrr1n1/1qppqBk1/Nr1q3R/r4K1p/R2PRQB1/B2b4/8 w - - 0 1 illegal: No proof kernel
1q1r4/3p2nr/R2pR2p/Rb3R2/2rq1nk1/1B1QrN2/3PrBPK/N5qN w - - 0 1 illegal: No proof kernel
1R2N1n1/p1N2r2/Rp2Q1N1/1n1q2rq/1B3nN1/qR1b1p1n/PP2Bn2/k5K1 w - - 0 2 illegal: No possible last move
QB1K1rb1/1rp1p2b/b6b/2PB1R1b/n5pq/NN1NP3/1N2k2b/1RB1b3 w - - 0 2 legal: proof: e4 d5 b4 dxe4 g4 h5 Ke2 a5 Ke1 axb4 Ne2 hxg4 Bb2 e3 Ba3 Nc6 Ng1 e2 Bc1 Nd4 Bb2 Nf5 Bc1 Ne3 fxe3 Kd7 Kf2 Ke8 Kg3 Kd7 Kf4 Ke6 c4 e1B d4 b5 h4 f5 a4 b3 d5+ Kd6 a5 Kc5 Ke5 g5 a6 f4 a7 b2 d6 g3 h5 b4 h6 b3 h7 g2 d7 f3 Ke6 f2 Nh3 g1B Nf4 g4 Qf3 Rb8 a8N Ba6 Na3 b1B Bg2 f1B Nb6 b2 Qa8 Rb7 Bd5 Bh6 Rh5 Bh2 Rf5 Nf6 Na4+ Kb4 Kf7 Ne4 Nd3+ Kb3 Ke6 Rf8 h8B Nc3 Bd4 Ba2 Bc5 b1B Nab2 Na4 Ba7 Kc3 c5 Qe8 d8N Qh5 Kd7 Qh4 Nc6 B6c4 Bg8 Bf7 Bb8 Bh5 Nd4 Bc2 Rb1 Bd5 Nf4 Ba6 Nb3 Bdc4 Bd5 Be4 Bc6 Bg8 Bd5 Bed3 Rf6 Bdh7 Rf5 Rf6 Kd8 Rf7 Nb5+ Kc2 Nfd3 Rf6 Nc4 Kd1 Nba3 Ke2 Ncb2 Rf8+
nq4RB/n1bpq3/1pn5/BbR1Pb2/2B1k2p/1K1R1qBP/1NN3Q1/1q4r1 w - - 0 1 legal: proof: d4 a5 c4 e5 b4 exd4 g4 f5 c5 fxg4 c6 Ra7 Nc3 b6 Nb1 Rb7 cxb7 axb4 Kd2 Ke7 Kc2 Kd6 f4 Kd5 a4 c5 h3 h5 a5 g5 e3 d3+ Kb2 c4 f5 h4 a6 g3 a7 c3+ Ka2 g2 a8R c2 f6 d2 f7 g4 Kb2 g3 Bb5 b3 R8a2 Nc6 b8B Ke4 Kc3 b2 Ne2 g1N Ra6 g2 Qf1 d1Q Rh2 Qe7 Bd2 Nf3 R1a3 g1Q Nd4 c1Q+ Nc2 Nf6 Kb3 Nd5 Bg3 Na7 Qg2 Nc7 Bc4 Na8 R6a5 Rg8 Rc5 Ba6 Ba5 Bb5 Rh1 Bg7 f8B Be5 Bg7 Qh2 Rg1 Bc7 Bh8 Rg6 Qd2 Ne5 Qg2+ Qf3 Nc3+ Kf5 Na4 b1B Nb2 Ke4 Kb4 Rg8 Rd3 Nec6+ Kb3 Qe1 Bd6 Qf4 Bde5 Qff8 Bg3 Qb8 Qh1 Rf8 Bf4 Rg8 Rc3 Rg5 Nb4 Bd3 Nc2 Qb1 Bfe5 Kf5 e4+ Kg6 Bh2 Nc8 e5 Kf5 Bf4 Be4 Rd3 N8a7 Bh2 Rg7 Rg3 Kf4 Qf1 Bf5 Qh1 Rh7 Rg8+ Ke4 Qf1 Rg7 Qg1 Rg2 Bg3 Qa1 Qh1 Rg1 Qg2 Qb1
1B1qR1BQ/pB1r2K1/4npR1/1nr1nPr1/3kn1PN/4Rq1p/6b1/1BN3q1 w - - 0 1 illegal: No possible last move
1R1r1qR1/NRB2n1p/1q2BR2/r1b5/1r3QP1/ppKqb3/1PNN2b1/1bk5 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 h5 c5 h6 cxd4 a3 Na6 Kd2 Nb4 Ke2 gxh6 Ke1 h5 Nf3 h4 Ng1 Nd5 a4 b4 Na3 Nc7 Nb1 Nb5 axb5 Bh6 Be2 Bg7 Bf1 Bf8 Kd2 Kf7 c4 Kg6 g4 Kg5 f3 Kf4 b6 a5 b7 e5 b8N d5 c5 d3 c6 b3 c7 e3+ Kc3 a4 Qe2 d2 Qb5 d1Q Bh3 d4+ Kc4 e4 Qa5 a3 Qd5 d3 Na6 d2 Bg2 h3 Nb8 e2 Qf7+ Ke3 f4 e1B f5 h2 f6 Bc5 Nf3 Ra5 Kc3 Qf8 Rf1 h1B Nd4 Bf2 Nbc6 Bf5 c8R Nh6 Rb8 Qe1 Qc4 Nf7 Na7 Bg6 Bf3 Bg2 Qa4 Bg1 Qb4 Qf2 Nc2+ Kf4 Rb7 Be3 Be2 d1Q Nd2 Bc5 Bc4 e3 Qa4 e2 Be6+ B6e4 Qb4 e1R Qc4 Qe7 Qd4 Rd8 Rb1 Qf8 Ra1 Ne5 f7 Re2 Qd6 Bf5 Qd4+ Re4 Qa4 Rb4 Rb8 Qe7 f8R Nf7 Rg8 Qf8 Re1 Bd3 Re5 Be3 Reb5 Qdf3 R5b7 Q3e2 Nd4 Bb1 Nc2 Qa6 Qb5 Qb6 Qf1 Qf3 Qc4+ Kg3 Qf4+ Kf2 Nc4 Ke2 Bd2 Ba2 Rf1 Bb1 Be1 Kd1 Nd2 Kc1 Bh4+ Qd1 Bg5 Re8 Bd8 Bc5 Bc7 Rd8 Qh6 Bge3 Rf6 Qe2 Qf4 Qd3#
3B2q1/1kBnR2p/4rpN1/1r1p1b1P/2q2R1b/8/r1bP1NBq/K1bQR2B w - - 0 2 legal: proof: f4 e5 b4 a5 g4 axb4 g5 Ke7 c3 bxc3 g6 Nc6 Qb3 Nd4 Qc2 Nf5 Qd1 Nd6 Bg2 f6 Bf1 Nf7 gxf7 exf4 h4 Kd6 e4 Kc6 a4 b5 a5 g5 a6 d5 a7 f3 e5 f2+ Ke2 c2 Kd3 g4 Kc3 b4+ Kb2 g3 h5 b3 e6 g2 e7 Kb7 e8R c5 Re2 c4 Qe1 Bf5 Ra5 c3+ Ka1 Rb8 Ra4 Bc5 f8B Ne7 Ba3 c1Q Nh3 g1Q Qd1 c2 Rf4 Ng6 Bg2 f1B Be7 Bf2 Bad6 Re8 Bc7 Bh4 Nf2 Nf8 Ree4 Qd6 Bed8 Bd3 Re7 Nd7 Bf3 Qg8 Rhe1 Bde4 Bh1 b2+ Ka2 Bg2 Na3 b1R Nc4 Rb5 Ne5 Bge4 Ng6 Bd3 R7e4 Re6 a8B+ Ka6 Bc6 Qe5 Rg4 Qh2 Rgf4 R8b6 Bb7+ Ka7 Ba6 Rb2+ Ka3 Rb8 Bc4 R8b5 R4e3 Bde4 Bf1 Kb7 Bfg2 Qb1 Rb3 c1B Rbe3 Qc2 R3e2 Qc4 Re3 R2b3+ Ka2 Bc2 Ka1 Rb2 Re5 Rd6 Re8 Re6 Re7 Ra2#
2bk2n1/2b5/2rNpn2/2Pq1B2/N3PB2/2B1b1Bq/1npQ1NpK/1RqR3n w - - 0 1 illegal: No proof kernel
nq1B3q/1N4nq/R4RBp/1np1PBp1/n4kNN/2b2b2/4r1P1/NQ1K2b1 w - - 0 1 legal: proof: f4 d5 h4 e5 c4 exf4 b4 dxc4 b5 g5 b6 axb6 h5 b5 Rh4 b4 Rh3 Ra6 Rh1 Rg6 hxg6 b5 a4 Ke7 d4 Kf6 e4 c5 a5 c3 a6 h6 g7 b3 a7 b4 a8B b2 d5 Ke5 d6 f5 d7 f3 Bc6 f2+ Ke2 b3 Rh2 c2 Ba4 f4 Qd3 f3+ Kd2 Bb7 Qc3+ Kf4 Ra3 Nf6 g8N Na6 Be2 f1Q Ra1 f2 Bf3 Nc7 Qb4 Qb8 d8N Nfe8 Bg4 Ng7 Rh3 Na8 Na3 b1Q Rh1 b2 Bf5 Qb5 Bb3 Qe8 Nf6 f1N+ Ke2+ Nd2 Ng4 Bd6 Bf7 Be5 B7g6 Bc3 Nf3 Qee5 Rg1 Re8 Rf1 Bc6 Nb7 Re7 Ne3 Nc4 Bd2 c1B Kd1 Ncb6 Nac2 Na4 Ra3 Qh8 Na1 Qeb8 Be1 Bd5 Ng4 Re6 Qb3 Re8 Qc2 Be3+ Qc1 Qd3+ Bd2 b1N Nh4+ Kg3 Ra2 Na3 Qb1 Nb5 Rf4 Bg1 e5 Rd8 Rf1 Bc6 Rf2 Rd4 Rf4 Re4 Rf1 Re2 Rf4 N4b6 Ra6 Na4 Rf1 Bf3 Rf2 Qe4 Be1 Bd4 Ba5 Kf4 Bd8 Bc3 Be6 Kg3 Bgf7 Qeh7 Bg6 Bc6 Rf6 Bf3 Bef5 Kf4
R5K1/2BR4/2Brr1pN/2n4q/1pq1pRrB/5nRr/Pb1q2P1/QNk3n1 w - - 0 1 illegal: No extended proof kernel
2K1n1B1/1pq3n1/1Nr1NP2/b4b2/2b2bB1/RRp1Q2B/1PpB2bk/N4bn1 w - - 0 1 illegal: No possible last move, all moves rejected
2bb4/Q1Bp2kp/bbqN4/2p2R2/bPb5/qB2n3/B2P1Bnr/N1NKR3 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 c3 b5 Rh2 b3 Ne2 b2 Rh3 b4 Ng1 b3 Rh2 Ra4 Rh1 Rb4 cxb4 Ba6 Nf3 Bb7 Ng1 Bc8 a4 Kf7 f4 e5 g4 e3 g5 e4 a5 e2 a6 h3 f5 h2 f6 Nh6 a7 Bc5 a8N Nf5 Nb6 Nc6 Nh3 Re8 Nc4 Bb6 Ra3 Ne5 Ra6 c5 Rg1 h1B Nba3 b1B Bb2 Ng6 Bd4 b2 Nf4 Bd3 Qa1 b1B Bf2 Ba2 Nc2 Ngh4 g6+ Kg8 g7 Qc7 Rg5 Qc6 Nd6 Ne3 Rf5 Bac4 Qa5 Rf8 Na1 Bc2 Bh3 Ba4 Nd3 Bg2 Ra8 Bf1 Nc1 Re8 Qa7 Re5 Rf3 Rh5 Rf5 Rh6 Nb5 Kf7 g8B+ Kf8 f7 Kg7 Nd6 Rh5 Re5 B4a6 Be6 Bc4 Bg1 B4a6 Bb3 Nhg2+ Kf2 Rh2 f8B+ Kh8 Be7 Kg7 Bd8 Bc4 Rf5 B4a6 Kg3 e1Q+ Bf2 Bfc4 Bc7 Qe2 Bd5 Qd3 Ba2 Qa3 Bb3 Bcb7 Re8 Bc8 Bf7 Nf1+ Kg4 e3 Re4 e2 Kf3 e1B Be6 Nfe3 Ba2 Bcb5 Beb3 Nc4 Ke2 Nce3+ Nd3 Ng4 Kd1 Bc4 Be3 Bf2 Nc1 Bh4 Bf2 Bd8 Re1 N4e3+
3B3R/NQ1bp1pn/1nR4P/3rB3/RBb1k1P1/2nn2bB/pnN3K1/4n2r w - - 0 1 illegal: Other
1nR4B/prr1Bbb1/r3NRn1/6rR/2kbpn2/5P2/PQp2N1K/2B3nB w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 h4 g5 Bh3 Qd5 Bg2 fxg4 Bf1 g3 Qf3 g4 Qd1 Qg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 d4 Kf7 b4 Ke6 f3 Kd5 b5 c5 g6 h5 g7 e5 b6 h4 b7 c3 Qd2 c2 Qf2 c4 Be3 c1R+ Ke2 h3 Qg2 c3 Nd2 h2 Nb3 Rh5 Bd2 e3 Nh3 e4 Nf2 Ne7 g8R Rg5 Nc5 Bg7 Ne6 Kc4 d5 Ng6 d6 c2 d7 Rb1 d8B Rb2 Qh3 g2 Be7 g1B Bg2 g3 Kf1 Rb3 Qh8 e2+ Ke1 Ra3 Rb1 Ra6 Bc1 Bd7 Rb2 Be8 Rb6 Bf7 Rc8+ Rc5 Kd2 e1N Ke2 Nd3 Kf1 Rc7 Rd6 Ndf4 Rb6 Nc6 b8B Rb7 Bc7 Rab8 Bcd6 Rc7 Be5 Rbb7 Ba1 Nb8 Rd6 Bf8 Qb2 Bh6 Qb1 Bf8 Bh8 Bh6 Qb2 Bg7 Nd1 B1d4 Nf2 Rc5 Nf8 Rcc6 Rf6 Rcc7 Ne6 Be3 Rg1 Bd4 Bh1 g2+ Ke1 Nd3+ Ke2 Bb6 Rd1 g1N+ Kf1 Nc6 Kg2 Ndf4+ Kg3 Be3 Rd5 Nb8 Bg2 h1R Rb5 Rh5 Bh1 Re5 Kh2 Bd4 Ra5 Rg5 Raf5 Rg3 Rh5 Rg5
4N1Rb/2Bk3p/2p1bRp1/2R2nr1/2n1br1r/p1B4n/1PB1qR1P/1N1K3Q w - - 0 1 legal: proof: d4 b5 c4 e5 g4 exd4 a4 d5 axb5 dxc4 Qd2 f5 Qd1 fxg4 f4 a5 e4 c3 f5 c2 f6 g3 e5 a4 e6 d3 b6 d2+ Ke2 c6 e7 g2 b7 g6 f7+ Kd7 e8R a3 Nf3 g1N+ Kd3 Bg7 f8R Nh6 Rg8 Nh3 Ke2 Qb6 Re6 Ra4 Nd4 Nf5 Nb5 Rh4 Rf6 Qg1 Qe1 d1B+ Kd2 Bh5 Bd3 Bf3 Nc7 Be4 Ne8 Qd4 Ke2 Qc3 Bg5 c1R Rf1 Rd1 Bc2 Rd5 Bd2 Qe3+ Kd1 Rb5 Rgf8 Rg8 Bb4 Bh8 Bc3 Rg7 Rf4 Rf7 Rf2 Ng7 Re6 Qd4+ Nd2 Na6 b8B Qe3 Bf6 Rg5 Rg8 Nb4 Bc7 Ba6 Qh1 Nd5 Bd3 Nb6 Rc1 Bc4 Nb1 Rf8 Bfe5 Rff4 Rf6 Be6 Rc5 Nf5 Bc2 Nc4 Bc3 Qe2+
1BbR3N/b2QRNPp/Bk6/8/pr3rqN/n1p1NrbB/p1P1n1K1/5n2 w - - 0 1 legal: proof: e4 b5 d4 e5 h4 g5 a3 gxh4 a4 bxa4 dxe5 f5 Rh2 fxe4 Rh3 Be7 Rh1 Bf8 b4 d5 f4 Kd7 Kf2 Kc6 g4 a5 e6 h3 b5+ Kb6 e7 c5 e8B h2 f5 c4 f6 a3 f7 c3 g5 a4 g6 d4 g7 e3+ Kg2 a2 Qe1 d3 Qd1 e2 Na3 e1B Qd2 Bg3 Bd7 Qg5 Nf3 Na6 Bh3 Qg4 Nh4 Bc5 f8N Nc7 Nfg6 Nf6 Be2 Nfd5 Rd1 Rf8 Nh8 h1R Nc4+ Ka7 Bf1 Rf4 Ne3 Rb8 b6+ Ka6 b7 Ba7 Ba3 Kb6 Bd6 Nb5 Re1 Rf3 Rad1 Na3 Be2 Rhf1 Be5 Ra8 b8N Rf4 Nc6 Rb8 Bd6 R1f3 Nd8 Rb7 Ndf7 Rb8 Qc1 d2 Ba6 Rb7 Nef5 Rb8 Re7 Rb7 Ne3 Rb8 Re1 d1N Qd2 Rb7 Rd7 Rb8 Rd8 Rb7 Nef5 Rb8 Re7 N1e3+ Kg1 Nf1 Ne3 Rf5 Be5 Nf4 Qd7 Ne2+ Kg2 R5f4 Bc7+ Kc5 Be5 Rbb4 Bb8 Kb6
3k3N/1B3pR1/1pRn3n/nNrb2KB/1PN3r1/1p2p3/P1r1NR2/1q1Qbb2 w - - 0 1 illegal: No proof kernel
3b1r2/1B1PpB1r/p1RNPpn1/2Q2p2/q3Rn2/K1RNb2n/6Nr/2Nb1k2 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 b5 axb5 g6 f5 Be6 Ra6 Bd7 Ra1 Bc8 g4 Qd5 g5 Qd4 b3 Qd8 Bb2 gxf5 g6 h6 Bf6 Qd7 Bh4 Qd8 Bg5 hxg5 h4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 Ke4 Kb4 Ke3 g7 Kf2 e4 c5+ Ka3 a6 d5 f6 b4 c3 d6 c2 h5 c1N d7 g4 b6 c4 b5 g3 h6 c3 e5 c2 h7 g2 e6 Na2 b7 c1R b6 Nh6 g8B Rc4 Qc1 Rc7 Nd2 Rc2 Nc4 Ng4 Rh3 Bg7 Ne3 Bh6 Bf7 Nc6 b8R Bb7 Ne2 g1B Bg2 Nce5 Rc8 Nc3 Rc6 Ng6 Rh4 Rf8 h8N Nd5 Bf3 Ndf4 Ng2 Rd2 Qc4 Qb8 Nc1 Qe5 Qb4 Kf1 Qc5 Qd4 Ra2 Qe4 Rc2 Nf2 Rc3 N2h3 Rg4 Rad8 Rh4 Ba8 b7 Qc2 b8N Bb7 Qd6 Bb6 Qc5 Rde8 Be4 Bd8 Bf3 Nd3 Re4 Ndf4 Rc8 Bd5 Nc6 Bb3 Ne5 Re2 Rc6 Qd1 Ne1 Rh2 Ng2 Qd4 Ned3 Bd1 Bg8 Qc4 Nf7 Qb5 Nd6 Rf7 Re3 Rh7 Bf7 Rf8 Re5 Ne2 Bd5 Be3 Re4 Qc4 Rb6 Qb5 Bb7 Nef4 Rc6 Qa4+
B1qR4/P1R3n1/1Kpbp1pN/r2b4/B3PB2/1N2p3/kb1Qr3/N1nN1rn1 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 c4 d5 g4 dxc4 Qb3 hxg4 Qa3 f4 Qe3 fxe3 Ke2 Kd7 d4 Ke6 a4 b5 h4 g3 f4 g2 h5 g6 h6 c3 Kd3 c6 f5+ Kd6 a6 c2 h7 b4 Kc4 e6 a5 b3 d5 b2 a7 Qg5 f6 Qh4 f7 Bb7 a6 Qg3 Nd2 b1R Bb2 c1N Ne2 g1B Nc3 Ne7 Nb3 Bc8 Nd1 Bh6 f8N Bf4 Nd7 Bh2 Ndc5 Nf5 Ra4 Bb7 Na1 Ng7 Ncb3 Nd7 Bf6 Rb2 Bg5 Be5 Bf4 Rhf8 h8N Re2 Ra2 Qg5 Rd2 Qd8 Rd4 Bg3 Rh7 Qc8 Kb4 Bh2 Ka5 Bg3 Bg5 Bf6 Bf4+ Ne5 Kb6 Rf7 Bh6 Nf3 Bf4+ Be5 Rd3 Rf5 Rd4 Ng1 Nf7+ Ke7 Rd3 Bb2 d6+ Kf6 d7 Ra5 Bc7 Bd6 Nh6 Rf5 d8Q+ Ke5 Bh3 Rf1 Bb8 Nf5 Rc7 Ng7 Bg4 Bb4 Rdd7 Bd6 Na5 Kd4 N5b3+ Kc4 Bf3 Rg2 Be2+ Kb4 Bb5 Ka3 Ba4 Rd2 Qg5 Ka2 Qg2 Re2 Rd8 Ree1 Qc2 Re2 Qd2 Rh2 Rcd7 Be7 Bf4 Bd6 Rc7 Rb8 a8B Re2 a7 Ba6+ Rb7 Bc4 Ka5 Bd5 Rc7 Rb7 Ka6 Rb4+ Ka5 Rc4 Kb6 Rc5 Re7 Ra5 Red7 Bc4 Rc7 Bd5
1RK1R2N/Pp2r1p1/N2n2QP/1pBp2q1/b6n/1r3B2/kn1NB3/b4Nbr w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g4 hxg4 b5 f5 b6 axb6 exf5 b5 Kd2 Kf7 Kd3 e5 Ke4 d3 Kd5 e4 a4 g3 c4 g2 f4 e3 h4 d2 f6 e2 c5 e1B c6 d6 a5 Bg3 c7 Bh3 c8B Nd7 h5 Qe8 h6 Ra6 f5 Qe2 Qc2 d1N Be3 Qf2 Nd2 Be5 Ngf3 g1R Bc5 Bg4 Be2 Qe3 Nh2 Qg5 Nhf1 Nb2 Rc1 Rc6 a6 Be7 a7 Nf8 Rh3 Ng6 Re3 Nh4 Bd7 Ra6 Bc6 Ra3 Qd3 Bf8 Rc4 Bd4 Re8 Rh1 Rb8 Bg1 Re4 Rb3 Ree8 Ne7+ Ke4 Neg6 Kd5 Ne5 Qe4 Nec4 Qb1 Kg8 Ke6 Bf3 Kd7 Kf7 Kc8 Be7 Qd3 Be4 Qg3 Bc2 Bcf3 d5 Qg2 Bd6 Qg4 Be5 Qe4 Nd3 Qg4 Ba1 Qe4 Ndb2 Qg4 Rf8 Qh5+ Kg8 f7+ Kh7 f6 Nd6+ Kd8 Rh8 f8N+ Kg8 Qg4 Kf7 Nd7 Kg6 Qh5+ Kf5 Qg6+ Kf4 Kc7 Rf8 Kd8 Rf7 Kc7 Re7 f7 Bd1 f8N Bc2 Qh5 Kf5 Ng6 Ke6 Kd8 Bd1 Nh8 Bc2 Nf6 Ke5 Nfe4 Bd1 Qg6 Bc2 Bb4 Kd4 Nc5 Bd1 Ba3 Kc3 Na6 Bc2 Bc5 Bd1 Qf7 Kc2 Qg6+ Kc1 Ne4 Kb1 Ned2+ Ka2 Qh7 Rb4 Qe4 Ba4 Qg6 Re5+ Kd7 Rb3 Kc7 Re7+ Kd8 Ndc4 Kc8 Nd6+
R6n/4R1R1/N2Bq1r1/K1nnp1NQ/r2bP1pb/7P/pqb1p1R1/Bk3N2 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 e3 hxg4 Nd2 f5 Be2 b5 axb5 f4 Nb1 f3 Kd2 fxe2 c4 Kf7 b4 Ke6 f4 Kf5 b6 Ke4 b5 d5 f5 e5 f6 g5 h3 a5 f7 g3 c5 g4 c6 d3 Kc3 g2 b7 a4 c7 d2 b6 a3 Qa4+ d4+ Kb3 Kd3 Qe8 d1Q+ Ka2 Kc2 Nf3 g1B Nbd2 d3 Rh2 Bf5 Rg2 Qd4 Nf1 d2 Bb2 Rh6 Ng5 Na6 b8N Rg6 c8R+ Nc5 b7 Be7 f8R Nh6 Rg8 Ra4 Rc7 Nf7 Rg7 Nh8 Na6 Qc1 b8B d1N Ra7 Qd7 Bd6 Bd3 e4 Ne3 Ra8 Nd5 Rb1 Bf6 Ba1 Qe6 Rbb7 Bd4 Rbe7 Qd2 Nf7 Bh4 Ng5 Nb7 Qf7 Kc1+ Kb3 a2 Qe8 Kb1 Qf7 Ra5 Qe8 Bc2+ Kc4 Ra4+ Kb5 Nc5 Qf7 Rb4+ Ka5 Qc3 Qf5 Qb2 Qf7 Rh6 Qh5 Rg6 Nf7 Rc4 Ng5 Ra4#
1Qq5/b1R2rRR/1NN1p1r1/pb2N3/1n1p1B1B/n1b1P1R1/5PpK/1qk1n3 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 b4 Kf7 c4 Kf6 h4 Ke5 h5 Ke4 h6 d5 c5 g5 b6 a5 e3 e6 b7 g3 c6 d3 b5 g4 b6 d2+ Ke2 d4 c7 Nc6 b8B Bb4 h7 Nge7 b7 Ne5 Ra2 Nd5 Ba3 Bc3 Be7 Rf8 h8R Nb4 R8h7 Bd7 c8N Nc4 Nb6 Bb5 Bf4 Rf7 b8R Qc8 Nf3 g1N+ Kf1 Kd3 Kg2 Na3 Qb3 d1Q Nbd2 Qb1 R1h3 Ra7 Kh1 g2+ Kh2 Rf6 Bd8 Rg6 Bh4 Rf7 Ne5+ Ke2 Rc2 Kd1 Nc6 Nf3+ Kg3 g1B Rb7 Ne1 Nf3 Rd7 Rc7 Rf7 Rb2+ Kc1 Nfe5 Nec2 Kg2 Bh2 Rf3 g3 Kh3 g2 Rg3 Nd3 Qb4 Nde1 Qf8 Qd7 Qb8 Qd8 Rb4 Qc8 Rc4 Nb4 Rc5 Qb7 Rd5 Qc8 Rdd7 Rf8 Rdg7 Rf7 Rg4 Bg3 Rg5 Bh2 Rg3 Bd2 Qa7 Rg4 Bh6 Qh8 Rf3 Re4 Re7 Nac2 Nec4 Bb8 N4e5 Rg4 Rg3 Na3 Rc7 Qc8 Bf4 Rg6 Kh2 Bc3 Qb7 Ba7 Qa8 Nbc2 Qb8 Nb4
b2n4/1Rn4p/kPQRr2K/p1p1Nqb1/1B4N1/PB6/1pNqq2n/N2r3R w - - 0 1 illegal: No possible last move, all moves rejected
Bb5N/2b1q1pR/pN1NB1PR/K2q3r/3rp3/1b2Pp2/Qrkn4/nN5R w - - 0 1 illegal: No possible last move, all moves rejected
5bk1/rB2PRqR/5nR1/3B2p1/pqr2nK1/BpB2QpP/b3N2b/4nN2 w - - 0 1 illegal: No proof kernel
kr1b4/1N1np2Q/bBR1n1nq/8/1K1pPBN1/2q1pb2/N3Pp2/r1R2N1R w - - 0 1 illegal: No proof kernel
n3R1n1/2K1p1qN/3RQ2N/R1Ppb2r/2rkPp2/1B3b2/rnp2R1B/1B1q4 w - - 0 1 illegal: No proof kernel
B2bBb2/4p1R1/1Q4Rr/pRN2b2/q3pR2/1P5n/N1nnKPpB/k1rq4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 c4 Kf7 h4 Ke6 h5 Ke5 h6 d5 c5 a5 b6 g5 h7 g3 b3 g4 c6 g2 b7 d3 c7 Kd4 Bh6 d2+ Ke2 g3 Ra2 Qe8 Rb2 Bf5 c8B Nf6 Rh3 Nh5 Bd7 Nc6 b8R Ne5 Bf4 Nf3 Rb5 Rc8 Rh4 Rc1 Nh3 g1B Bc6 g2 Nc3 Bh2 Ng5 Qd7 Bb8 Bc7 Ba8 Bd8 Bh2 Qe8 Qc2 d1N Rf4 Nd2 Na2 Ne3 Qc6 Nc2 Rb1 Rg8 h8R Rg6 Qb7 Rh6 Rg8 Qd7 Rg6 Qe8 Nb4 Kc3 Ne6 d4 Qb6 Qd7 Ra1 Kb2 Nc5 Qc6 Rg7 Qe8 Ra4 Kb1 Na2 Ka1 Rc4 Qc6 Rbb4 Qa4 Rb5 Nf6 Rg5 Nh7 Rg7 Ng5 Rc3 Nh3 Rcg3 Na3 R3g6 d3+ Ke3 Ndb1 Be2 d2 Bg4 d1Q Bh5 Qg1 Ke2 Nc2 Rc6 Nd2 Be8 Qh1 Rcg6 Qd1#
2NR3n/1p5B/2PBQ2K/1n2pbpp/6kb/2Pr3R/2qnN3/BR2rbqB w - - 0 1 illegal: No proof kernel
6N1/kpn3QK/B1p2bB1/1rnn4/2p1R1N1/p1B1BP2/1Pn3bR/3r1Rqn w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 a4 dxc4 h4 gxh4 a5 Na6 Ra3 Nb4 a6 Nxa6 Ra4 Nb4 Ra1 Na2 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 e5+ f6 h5 Kg6 h3 d4 h2 g4 e4 f7 h4 g5 e3 d5 e2 d6 e1N d7 h3 f3 Nc2 Qd5 Rh5 Nc3 Bg7 f8B Nab4 Ne4 Bf6 Bg7 Na6 Qe5 Qf8 d8R Qc5 Rd4 Ne7+ Kf7 Bf5 g6 Rd8 Be3 Nd5 Be2 Rd6 Kg8 Rg5 Rf1 Bc8 Kh7 c6 Bd1 Bg4 Bh8 Rf5 g7 Nac7 g8B a5 Bf7 a4 Bg6 a3 Qe7 Ka7 Qg7 Ne1 Ba4 Nc2 Bb5 Rd8 Ne2 Qb6 Nf4 Rd7 Rhg1 h1N Nd3 h2 Ba6 Nf2 Ne5 h1N Rg2 Nd3 Rh2 Bh3 Ng4 Nc5 Rb1 Be7 Nef6 Bg2 Ng8 Bf6 Rf4 Qb4 Rd4 Qe1 Re4 Qg1 Re1 Nb6 Rf1 Rd1 Qf7 Nbd5 Qf8 Bh4 Bc3 Bf6 Qg7 Ndb4 Bg5 Na4 Bcd2 Rb5 Bge3+ Nc5 Bc3 Nbd5
1RB1k1BR/p5p1/P4rpb/4qN1P/N1b1r3/pn1K3n/2Q1n2R/1n1nR1B1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 g4 Bb4 a5 Bf8 Qa4 bxa4 g5 Bc5 g6 hxg6 Ra2 Be7 Ra1 Bf8 h4 c5 e4 f5 Ke2 f3+ Kd3 a3 b4 f2 a6 f4 b5 f3 h5 Ne7 e5 Rh7 b6 Nbc6 b7 Qd6 b8R Nd4 e6 Qe5 d6 Nd5 e7 Rh8 Bh3 f1N Rh2 f2 Nf3 Ne2 Nc3 Nfe3 Nd4 f1N Na4 Nd1 Nf5 Rg8 Bb2 Rh8 Bd4 c4+ Kc2 c3 Kd3 c2 d7+ Kf7 d8R Be6 Bg1 c1N+ Kc2 Ndf4 d4 Ba2 d5 Nd2 d6 Nb1 d7 Bc4 Re8 Nb3 d8Q Rg8 Qd3 Rh8 Bg4 Nh3 Red8 Kf6 e8B Be7 Rdc8 Rf8 Bf7 Bb4 Be6 Bd2 Bg8 Bh6 Qe4 Rf7 Qg2 Ke6 Re8+ Kd7 Qf2 Be6 Kd3 Rf6 Qc5 Bd5 Qc2 Bf7 Bh7 Be6 Rh8 Bd5 Bg8 Be6 Rb4 Rd8 Rb8 Ke8+ Nd4 Bd5 Bc8 Rd7 Nf5 Rc7 Ng3 Rc4 Nf5 Re4 Nb6 N1d2 Rc1 Nb1 Na4 Ne3 Rf1 Nd1 Re1 Bc4+
8/ppPbPp2/3N1Bb1/n1b2rp1/1r4kn/NB3bB1/QKRNRb2/1qB5 w - - 0 1 illegal: No possible last move
2N5/B1n1B2r/2q2pN1/6b1/prnN1RK1/P4QB1/1kNPRprp/n2b1n2 w - - 0 1 legal: proof: h4 d5 f4 b5 c4 g5 cxb5 gxh4 e3 e5 Bd3 exf4 Bc4 dxc4 Ke2 Kd7 Kf3 Kd6 g4 Kd5 b4 a5 b6 c5 g5 h5 b7 h3 a3 c3 e4+ Kc4 e5 c2 e6 Kb3 g6 a4 g7 h2 e7 h4 e8N h3 b5 f6 b6 c4 Nc7 c3 Na6 Qd5+ Ke2 Rh7 Nf3 Nc6 b8B Nge7 g8N Bg4 b7 Na5 Ba7 Qc6 b8B Nd5 Bb2 Bh6 Nb4 Nc4 Bd6 Bg5 Ne7 Nc7 Re1 h1N Ng6 h2 Be7 Ng3+ Kf2 Rc8 Re2 Rg8 Qf1 c1R Nc2 Re1 Kg2 Bh5 Kh3 Rb8 Qf2 Rg1 Qg2 Nf1 Qg4 Nb6 Qg3 Rg2 Nfd4+ Kc4 Qf3 Rb7 Ne1 c2 Nc3 c1N Ne4 Nb3 Nec2 Rb8 Rae1 Na1 Rf2 Rb7 Ree2 Rb8 Bc3 Rb7 Bcb4 Rb8 Bbd6 Rb7 Qe3 f3 Bg3 Rb8 Qf4 Kd3 Qg4 Nc4 Nd6 Rb4 Nc8 Qe8 Re4 Qc6 Rfe2 f2 Rf4 Rb7 Qh4 Bf3 Qh5 Rb4 Re6 Bd1 Re2 Nb6 Kg4 Kc4 Ne6+ Kb3 Ned4+ Kb2 Qh3 Nc4 Qh5 Bh4 Qf5 Bg5 Qd3 Qe8 Qf3 Qc6
Q4r1N/nN3R1p/4NR2/RBBP3k/7b/n1r2bK1/p1RnrPpp/6rq w - - 0 1 illegal: No proof kernel
r4b1Q/1nB2Rbp/1R2n1PR/1pq4K/2k2B2/np5P/pB2n2N/1NB2b1r w - - 0 1 illegal: No proof kernel
2Bkr3/b2N2bp/2BP1n1p/2K1n3/p1b2Q1n/4NpRR/rPBBq3/5b1N w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 h4 exf4 h5 b5 h6 gxh6 axb5 Qd7 Na3 Qd4 Nb1 Qd8 Kf2 a5 e4 c5 d4 f5 g4 f3 Ke3 f2 d5 c3 g5 c2 e5 c4 Kd4 f4 b6 c3 e6 a4 g6 f3 g7 Qd6 e7 Qe6 b7 Nd7 b8N Ne5 Qd2 Ng6 Rh3 Qe2 Kc5 Be6 Nd7 Nf6 g8B Rd8 Na3 Nh4 Qf4 Bg7 Bd2 c1B Nc4 c2 Ne3 Bf7 Bg2 f1B Rg3 Rb8 Nh3 Rb3 Nf2 Ra3 Bh3 Ra2 d6 Bc4 Bge6 Rf8 Bef5 Rg8 Be1 Bd2 Rc1 Ba5 Bd2 Bc7 Nh1 Bb8 Rd1 c1N Bc2 Bg2 Rg1 Bf1 Bg4 Rf8 Rh3 Rh8 Rgg3 Nd3+ Kb6 Ne5 Kc5 Rg8 Nb6 Kf7 e8B+ Kf8 Bb5 Kf7 Nd7 Ke8 Bc6 Kd8 Nb6 Rf8 Bc8 Re8 Nd7 Ba7+
6rr/b1N1B1pB/2rNN1R1/n1RQ1p1P/1q2b2p/2NR2P1/1p3k2/1b2rn1K w - - 0 1 illegal: No possible last move, all moves rejected
1B1r1B2/2P1N1K1/pnRB4/1kp2n2/4qpB1/1N3bQP/1Rr1pb1n/2bR2b1 w - - 0 1 illegal: No proof kernel
3BbK1k/2p3pp/bR1r2Pp/1n1RN1qb/1Q2n1P1/1B1B1nN1/2N3n1/2N3r1 w - - 0 1 illegal: Other
RB3B2/bP6/2n1k1rp/P1Rb4/1Q1p1r1p/RR4N1/n2rpnB1/N3K1qn w - - 0 1 illegal: No proof kernel
n3r2q/2Nn3k/1QqBPrR1/pBp2r1N/3rP1pR/1p2R3/N3bb1K/5R2 w - - 0 1 illegal: No proof kernel
1Nkb3Q/4B2p/4Rqrb/K1P3N1/1Bb3p1/1qnN1NPr/2nR1pp1/R4b2 w - - 0 1 illegal: No proof kernel
1bkqq1R1/1r2RN1p/2n1K2p/2Q3P1/1p4R1/B2bB2p/RP1nBq2/1N1r2q1 w - - 0 1 illegal: No proof kernel
1k1nNQ2/1nq1r1pP/1Bp1p3/Pq2n3/1p2b2b/3B1R2/3n2Rr/RB1N1K1B w - - 0 1 illegal: No proof kernel
4N2q/r1B1p2q/rNb2bk1/1nNBp2R/1N1b2p1/2P1nP2/1Q2B1p1/1RK2b2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 dxc5 hxg4 a4 bxa4 e5 f6 Ra2 fxe5 Ra3 Nh6 Ra1 Ng8 Kd2 Kf7 h4 g5 b4 d5 h5 a5 b5 g3 h6 d4 f3 g4 b6 g2 h7 d3 c6 a3 b7 a4 c7 a2 Nc3 a3 Rh5 Nf6 Nge2 Bh6+ Nf4 Bg7 Na4 Bd7 c8B Na6 b8N Nd5 Nb6 Nac7 Ne6 Bc6 Qe2 Bf6 Na6 Nb5 Rb1 a1B Nec5 a2 Be6+ Kg6 Nb4 Bd4 c3 a1Q Ba3 Ra7 Kc1 Ne3 Qb2 Qa2 Bg8 Qf7 Be2 Qg7 Bd5 Qb8 Ncd7 Rd8 Nc5 Rd6 Nba6 Re6 Bb4 Qbh8 Ba5 Nc4 Nb4 d2+ Kc2 d1B+ Kc1 Qf7 Na2 Ne3 Nb4 Qd8 h8N+ Kg7 Ng6 Qh8 Nf4 Rd6 Nfe6+ Kg6 Nc7 Qfh7 Ne8 Bb3 Na8 Bc4 Bc7 Bd3 Nb6 Bc4 Bd1 Bf1 Be2 Rd7 Bd6 Ra6 Bb8 Rb7 Bc7 Rba7
4r3/b2p2B1/Rn3qBR/1RP1P2Q/4N1Kp/2q2nN1/1pNR1bkp/r2b3b w - - 0 1 illegal: No proof kernel
KN5Q/2P2pN1/3b1BRb/1nbP1qrB/p2B1RrN/2qk2pN/2p5/5bn1 w - - 0 1 illegal: No proof kernel
R2Bb1n1/Np1b2kb/8/2bP1qBp/2rR1pP1/3q1BNN/K2Bp3/1r1n3Q w - - 0 1 illegal: No proof kernel
1N1r3N/1pk2bb1/1n1bB1P1/q2n1r2/p3K3/Bb3RN1/4P1pp/Rq1Q1NB1 w - - 0 1 illegal: No proof kernel
Q1q2B1k/1p4R1/NP1PpK2/1Nbq3r/6pN/R1n1b1r1/B1Rn3p/1b1R2b1 w - - 0 1 illegal: No proof kernel
3bbKBB/p3pr2/1Nqr1pq1/Q2B2n1/1R3r2/2R4P/NrR1p1P1/2R3nk w - - 0 1 illegal: No proof kernel
rrBRQ1nq/1B1pN1n1/1pq3rB/P2q1B2/pKNPR3/n1p3b1/3R4/5k2 w - - 0 1 illegal: No proof kernel
R3q3/NbRp2k1/Q1bp4/P2Pp1Kb/b5nr/N1R1b2B/2RBN1p1/2n1q3 w - - 0 1 illegal: No proof kernel
q2qq1nN/kbp1p1B1/NbPP1BB1/2b4B/R5p1/b1p2r2/2Q2rR1/3RK3 w - - 0 1 illegal: No proof kernel
Rn2bbN1/1n1q3R/KB2qB1p/2rk1pp1/P5bP/BN1B2Rq/3Q2p1/q7 w - - 0 1 illegal: No proof kernel
n1RBRQn1/8/P1B1b2B/1Np1rq2/5K1p/n1Bkp3/pq2R1bP/2nN2b1 w - - 0 1 illegal: No proof kernel
1Br2RQ1/1rNR1p2/K3n2k/Rb2pP2/5p1b/4bp1N/bB2P1qN/1q1rN3 w - - 0 2 illegal: No proof kernel
k1qN4/pn2r1p1/6RR/P2p2n1/5nPN/N1q2r1n/1KQrB1p1/B2Bb1N1 w - - 0 2 legal: proof: g4 e5 d4 exd4 c4 f5 h3 b5 Nc3 bxc4 Nb1 Bb7 Rh2 Bf3 Rh1 fxg4 Qd3 g3 Qd1 Bg4 hxg4 Be7 Rh5 Bd6 Rh1 Bf8 Kd2 c5 Kc2 h5 e4 d5 f4 Kd7 a4 Kc8 b4 Kb7 b5 d3+ Kb2 g2 a5 c3+ Ka3 c4+ Ka2 c2 b6 h4 f5 d2 f6 c3 f7 h3 e5 h2 e6 Rh3 e7 Nh6 e8B Bb4 f8N Na6 Nd7 Nf7 Bd3 Nc5 Ne5 Rf3 Bb2 c1Q Na3 c2 Ng6 Qc8 Be2 Ng5 Rb1 Kb8 Bd4 Nb7 Nh4 Bc3 Rb2 Qa1+ Kb3 c1N+ Kc2 Nd3 Ba4 Nf4 Rb3 Nc5 b7 Bb4 Qc1 d1R Qd2 Bc3 Rb6 Bb4 Qc1 Be1 Rg6 Qc3+ Kb1 Rd2 Qc2 Kc7 b8N Kb7 Nc6 Rb8 Nb5 Ka8 Nd8 Rb7 Bb3 Re7 Na3 Qb4 Ba1 Nb7 Qc1 Qbc3 Bbd1 Re5 Qc2 Re7 Nh3 Q3c5 Kb2 Qc4 Rf1 h1N Ng1 Nf2 Rh6 N2h3 Rg6 Rg3 Rf3 Qb4+ Rb3 Qbc5 Rbb6 Rf3 Rh6 Q5c7 Rbg6 Qc3+
Rq6/np2RQNr/PNqkn3/4Rq1p/1P3r1p/K6q/p2BR3/1bNB1r2 w - - 0 1 illegal: No proof kernel
2N4N/r1NKp3/1R3q2/1B1q1k1q/7r/1pQnPrB1/p1P2R1p/Rn1b2rN w - - 0 1 illegal: No proof kernel
3N3B/pn3PQ1/qB2q3/bR1bR2p/Kn1pB2R/P1qq3p/1N2k1r1/Rb6 w - - 0 1 illegal: No proof kernel
B1b1b3/3bB2n/2R2pb1/p1P1pPk1/b2Rq3/Nn2R1p1/Q1N4r/N3b1KN w - - 0 1 illegal: No proof kernel
nK1b4/B2pBr2/1B6/p1R1rR1r/B2kpp2/1Q2NP2/n2Pr1N1/1bb3nR w - - 1 2 legal: proof: e4 b5 b4 c5 a4 bxa4 g4 cxb4 g5 f5 g6 f4 Be2 Qa5 Bf1 Qf5 exf5 hxg6 Qe2 g5 Qd1 g4 Ke2 Kf7 Kd3 Kf6 Kd4 g5 Kc5 Ke5 h4 a5 Kb6 a3 Kc7 g3 c4 g4 f3 b3 c5 a2 c6 b2 h5 g2 f6 g3 f7 Nf6 h6 Ne4 h7 Nc3 Nh3 g1N Bb5 g2 Qb3 Kd4 Nf2 e5 Na3 b1R Bb2 e4 Nd3 Ba6 Ne1 Be7 Ba4 Bd3 f8B Bd8+ Kb7 Ra6 c7 Re6 c8R Re5 Rc5 Na6 Be7 Nc7 Nc4 Na8 Kb8 Rd1 Ne3 Bb1 Rh6 Rf8 h8B Rf7 Rh5 Rc1 Nd3 Re1 Rf5 Re2 Bg7 Bc2 Rb1 a1B Ne1 Bd3 Ba3 Na2 Bgf6 Bc2 Bh4 Bb2 Bf2 Bc1 Bb4 Nh3 Ra1 g1R N1g2 Rh1 Rb1 Bb2 Re1 Rh2 Rh1 Ng1 Ba3 Rh5 Bb4 Bb1 Bc3+ Kd3 Bd4+ Nc3 Rc7 Ba3 Bb6 Bc1 Rc5 Kd4 Ba7 Rh3 Rc6+ Kd3 Nf1 Rh8 Bfb6 Rh5 Rc5 Kd4 Nfe3 Na2
bb1bkr2/1nrb3r/2NB2N1/Q1pqBp2/6pr/p2RN3/P4PK1/NB3R2 w - - 1 2 legal: proof: g4 d5 h4 f5 c4 b5 e4 bxc4 g5 dxe4 h5 Nd7 h6 Ndf6 gxf6 Qd6 Qg4 Qh2 Qf3 Nxh6 Qd1 Ng8 d4 a5 b4 g5 d5 h5 d6 e5 b5 h4 b6 e3 b7 h3 b8B c3 Bd3 c2 Kf1 g4 Ba6 e2+ Ke1 e4 Nd2 a4 Nf1 a3 Bb5+ Bd7 Nf3 Ne7 Bd3 Rh7 Bf4 c1R Bb1 Nc6 Nd4 Nd8 Rg1 Qh1 Nb3 h2 Be5 Nb7 Ne3 Bh6 Rf1 Bf4 Nc4 c5 Ne3 Qg2 Bc7 h1B Bb8 Rc3 Qd2 Rd3 Qa5 Ra7 Nd5 Rdh3 Ne3 R3h4 Bc7 Bg3 Bb8 Ra8 Bc7 Rc8 Bb8 Rc7 f7+ Kd8 f8N Ke8 Ng6 Bf4 Kd2 e1B+ Ke2 Bc3 Rd1 Bg5 Rd2 Bd8 Rd3 Qf3+ Kf1 Bb2 Ng2 e3 Kg1 e2 Ne3 e1R+ Nf1 Re4 Ne3 Rb4 Kf1 Bb5 Kg1 Qd5 d7+ Kf7 Kf1 Re4 Bd6 Re8 Be5 Rf8 Kg1 Bg5 d8N+ Ke8 Nc6 Bd8 Kf1 Rcd7 Bbd6 Rc7 Kg1 Bg2 Bc2 Bc3 Rf1 Bd2 Bb1 Bc1 Nb8 Bd7 Na1 Bd2 Nc6 Bf3 Qa7 Ba5 Qa8 Bb6 Qa6 Ba7 Qa5 Bb8 Qc3 Na5 Na7 Qc4 Qb4 Ba8 Nc6 Nb7 Kg2 Qf7 Qa5 Qd5+
2B1B1b1/1P5p/3knNrp/K1R1p3/bb1nP3/bRN3R1/3b1r1p/2Q1BB1b w - - 0 1 illegal: No possible last move
r7/n1n2bn1/K1N1NpPR/BrR3Bb/B4pq1/kb5p/1Npp1N1P/5Q2 w - - 0 1 legal: proof: d4 e5 b4 exd4 f4 a5 Bb2 axb4 Bc1 g5 c3 gxf4 Bb2 b5 Kd2 b3 Bc1 b4 Ke1 b2 Kd2 b3 Ke1 Bb4 cxb4 Ra5 Nd2 Ra7 Nb1 Ra8 Kd2 Ke7 Kd3 Kd6 Kc4 h5 Kb5 c5 e4 d3 a4 h4 g4 h3 a5 c4 g5 d2 a6 c3 a7 Rh5 e5+ Kd5 e6 d6 e7 Kd4 e8N Bg4 Na3 b1N Nc4 b2 Nf6 Na6 Ne4 Ne7 Nf2 Qc8 Nf3+ Kd5 g6 Nf5 Ra4 Ng7 Nd4 Nc7+ Kb6 Be2 b5 Qg4 Nc6 Na3 Kb7 Kc5 b6 b1B Nb2 Bf3 Bb5 Ba2 Qf1 d1B Re4 Bab3 Ba4 Nab5 Re8 Rg5 Rh8 Bfd5 Rh6 c2 Rg1 Be6 Bd2 Re5 Ba5 Bec4 Rg3 d5 Rc3 Rh8 a8N d4 Na7 d3 Nc6 Nd5 Nc7 f6 Ka6 d2 b7 Be2 b8B Na7+ Nb5 Rhe8 Bbc7 Ra8 Bd8 Re6 Be7+ Rd6 Bf8 Nc7+ Kb7 Bd1 Nbd4 Bf3 Re3 Bf7 Re7 Nce8 Ka6 Rd5 Ne6+ Kd6 Nh1 Rb5 Rc7+ Kd5 Bc5 Bd1 Bf2 Be2 Bh4 Bf3 Nd3 Kc4 Bg5 Bd1 Nhf2 Be2 Ndb4 Kc3 Rc8 Kb2 Nbd3+ Ka3 Rc7 Qg3 Nb2 Bh5 Nb4 Qh4 Rc5 Qg4 Nc6 Nc7+
BQ1Rrn1k/2R4N/2P1R3/3P1Bb1/1p3p2/p1qp1nB1/Brp3bN/b1K1r3 w - - 0 1 illegal: No proof kernel
R3R1bq/n4p1R/kB1QbnP1/p3P2B/8/r2pr1N1/2rp2pK/bB2RN2 w - - 0 1 illegal: No proof kernel
2qK4/r1np4/k1N1P1BR/2B2Q1R/p7/Rprpp1nP/1b3Bbr/NR5b w - - 0 1 illegal: No proof kernel
1Bbbn2n/QBP3p1/pr1RP1p1/nNKNN2B/1rR5/2N5/pr1p3k/5q2 w - - 0 1 legal: proof: f4 c5 a4 b5 d4 cxd4 g4 bxa4 g5 e5 g6 hxg6 fxe5 Bb4+ Qd2 Bd6 Qd1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Kg4 b4 Kg3 e4 f5 b5 a6 b6 d6 h5 d3 h6 f4 b7 d2 e6 a3 e7 f3 e8B f2 e5 a2 e6 Nd7 b8N Qg5 h7 Qh5 Be2 f1R Nf3 Re1 Nd4 Qg5 Bh5 Ndf6 Nb5 Qf5 Nc6 Rb8 N1c3 Rb6 Nb4 Nh6 Nbd5 Nf7 Rh4 Be7 Bc6 Bd8 Bb7 Re2 Qg1+ Rg2 Rd4 d1N Bf4+ Kh3 Kb4 Nb2 Rc4 Ne8 Rd1 Rd2 Be5 Qf1 Qc5 Rg8 h8N Rf2 Qc7 Rf4 Qb8 Kh2 Qa7 Rf8 Ne7 d5 Kc5 d4 Ned5 d3 Bb8 Ng5 Nf7 d2 Rc1 Rg8 Ne5 Nf7 Rb1 Nd1 Rbb4 Nb2 Rd4 Rf8 Rbc4 Nh8 Ra4 R8f6 Nd1 Rd6 c4 Re4 Ne7 Qg2 Ndc3 Rb6 Rd6 Rg4 Kb4 Rf1 Ned5 Rgf4 Kc5 Rb1 Kb4 Rff1 c5 Rf4+ Ne4 Qh1 c6 Qf1 c7 Nc4+ Kc5 Rb2 Nec3 Na5 Rd4 Rf2 Rg4 Re2 Rf4 Re4 Rg4 Ra4 Rc4 Rab4
b1BK4/2q1B3/Np1n1n1r/PR1Bp1kp/B7/qrp1P3/1Rbp1Q2/R1N3b1 w - - 0 1 illegal: No proof kernel
2bB1k2/4pq1p/pbqpQNr1/Kn5R/1p2R3/P1P1B1b1/2N1Bn2/rR1R4 w - - 0 1 legal: proof: h4 c5 b4 g5 bxc5 gxh4 e4 f5 d4 fxe4 Kd2 Qc7 Kc3 Qd6 d5 Qxd5 Kb2 Qd2 Ka3 b5 f4 b4+ Ka4 d6 g4 e3 c6 h3 g5 a6 g6 e2 a3 e1B c7 h2 f5 Bf2 c3 Be6 c8R+ Kd7 g7 Qe3 f6 Qd2 f7 Bh3 Be2 Qd5 Qe1 Nf6 g8R Qc6+ Ka5 Bg7 f8B Bg3 Nf3 Ne4 Nbd2 Nf2 Ne4 Bd4 Rg4 Rg8 Be3 Rg6 Rd1 Bc5 Rf1 h1Q Nd4 Qf3 Bfh6 Qf7 Nc2 Bd4 Rc7+ Ke8 Rg5 Bc5 Rh5 Bc8 Bd4 Ba7 Bhe3 Kf8 Nf6 Bc5 Re5 Ba7 Re4 Bc5 Rb7 Ba7 Rb5 Bb6+ Ka4 Qcc4 Ra5 Nc6 Rh5 Na7 Rb1 Nb5 Rfh1 Ba5 Bb6 Qc6 Bd8 Bb6 Rd5 Be5 Rdd1 Rg1 Rh5 Bg3 Qd2 Rb8 Qd5 Rf1 Qe6 Ra8 Rdd5 Rc1 Rd1 Rb8 Rb3 Ra1 Rbb1 Bb7 Qh3 Kg7 Bc7 Rg8 Bd8 Kf8 Qc8 Rg6 Qe6 Ba7 Ka5 Bc8 Qd5 Bd4 Qe6 Bb6+
B1B1R3/2p5/rn1Nb2R/1P1q1RQn/rk2pq2/2p1P1Np/3p2Nb/q3N2K w - - 0 1 illegal: No proof kernel
6BQ/1n1K1pB1/2P3pp/nNP1pq2/3R1nb1/r1b1Rr1N/NnB3kp/4B3 w - - 0 1 illegal: Other
RKnQNn1r/1P3P2/BrbppN2/4R1p1/N1qbB2b/2B5/4p2p/2bN1k2 w - - 0 1 illegal: No proof kernel
1K2r3/pRbBknRP/b1R5/q2pN1nb/6p1/1Rpr1pP1/8/Q1N2bBN w - - 0 1 illegal: No proof kernel
2K3n1/1nq5/r1p3P1/3bp3/NB1RNR1Q/1ppRpRnr/2P3B1/2q1kN1r w - - 0 1 illegal: No proof kernel
3Q1b2/pp1r1r1N/r2NB2P/1PkbR3/B4q1p/3n1pB1/pN2K2q/q4R1N w - - 0 1 illegal: No possible last move
q2N4/r2B2p1/1pp3nP/n2R3q/1P3Rp1/B1p1Q2b/Rr1B1qkr/1K4NR w - - 0 1 illegal: No extended proof kernel
2b1Q1n1/pNRrR2P/k5B1/Pp1p2nn/1p2q3/B2qN3/q1p1RBRb/5K2 w - - 0 1 illegal: No proof kernel
2B5/1nk1B1rb/pRrp1RR1/5pN1/p1p4r/N2B1P1P/rb2K2Q/2r2q1R w - - 0 1 legal: proof: b4 h5 d4 e5 g4 hxg4 c4 exd4 a4 Na6 b5 Nc5 a5 Na4 a6 bxa6 c5 Nb6 cxb6 a5 Qc2 a4 Qd2 Nh6 Qd1 Ng8 e4 c5 b7 g5 b8R d3 b6 g3 e5 g4 b7 d2+ Ke2 g2 e6 g3 f3 c4 h3 Nf6 e7 Rh4 Qe1 d1R Ba3 Rc1 Bd6 Ne4 Be5 Nc5 Bc7 Bg7 Bd6 Bb2 Qf2 Qb6 Na3 a6 Ra2 Ra7 Ra8 f5 b8R Rc7 Rb7 Rc6 Ra1 Qa7 Rb6 Nb7 Rb1 Rc3 Rd1 Rc1 Rd4 Ra1 Rg4 Ra2 Rg5 Rc7 Rg6 Rc6 Bc7 d6 Bd8 Be6 Rc8 Kf7 e8B+ Kf8 Bf6 Bg8 Bd7+ Kf7 Rb8 Bh7 Bc8 Kf8 Be7+ Ke8 Rb3 Qb6 Re3 Qd4 Ree6 Qb6 Ref6 Qa7 Bf8 Kd8 Be7+ Kc7 Bf8 Qd4 Be7 Nc5 Rb6 Nb7 Ke1 Qe3+ Ne2 g1R Qh2 g2 Kd1 Qf2 Ng3 Qc5 Kd2 Qd4+ Bd3 Rc1 Ke2 g1R Ne4 Rgg4 Rh6 Rg7 Rhg6 Qg1 Ng5 Qf1+
1B1RbB2/1r2NR1r/1N1nr2p/p1p1P3/R5r1/2Kp2kP/R4p1b/1rQ2Bq1 w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 f4 gxf4 c4 Na6 b5 Nb4 a5 Nd5 a6 bxa6 c5 Nb6 cxb6 a5 Bb2 a4 Ba3 Qf6 Bc1 Qd8 Kd2 Ke7 e4 Kd6 g4 Ke5 b7 d5 b8R f5 b6 a5 g5 c5 h3 h6 g6 a3 b7 f3 g7 Kf4 Bg2 d3 Ra2 f2 Bf1 d4 Rc2 a2 Rc4 a1R Qb3 Rh7 Qb6 Ra6 Qb4 Ra4 Na3 Ne7 g8R Bd7 Qb1 Nc8 Rg7 Nd6 Bb2 Be8 Nf3 Qg5 Nh4 Qg1 Rf7 Kg3 Qc1 f4 Rd8 f3 b8B Bg7 Rh2 Be5 Ng6 Ra7 Nc2 Rb7 Ne7 Rab4 Na3 Bf4+ Kd1 d2 Kc2 d3+ Kc3 d1R Ba1 Rb1 Ra4 Re1 Nc4 Re2 Nb6 Rb4 Bg2 f1R Bb2 Rfe1 Bf1 Re3 Rc2 f2 Ba1 Rb1 Rca2 Be5+ Kd2 Bf4 Bg7 Be5 Bf8 Rf3 Qa3 Rf4 Qb2 Rg4 Qc1 Bf4+ Kc3 Kh4 Rb4 Bh2 Rba4 Re3 Bg2 Kg3 Bf1 Rf3 e5 Rf6 Qd2 Rfg6 Qc1 Re6
1N5R/1R1p4/pR2b1pq/2p1K1N1/Br1P1pRQ/2bBbbN1/b1Pkr3/7n w - - 0 2 illegal: No proof kernel
n1q2kn1/BB4nR/3K1pp1/5r2/4ppNP/rpQb1P2/q1B2n1B/RN3N2 w - - 0 1 illegal: No proof kernel
6r1/1pn2bN1/2p2k2/3ppP2/2R3Kp/2NrP2N/rb1b1Q2/1BnNBRrR w - - 0 1 illegal: No possible last move, all moves rejected
K2N3b/1rp1pq1p/B2p1rP1/2nRb1pB/7B/R5p1/1B1N1nPk/1QN2b2 w - - 0 1 illegal: No proof kernel
q2rnN1B/1n2R1r1/PR4Np/1n1B1p1P/ppR3p1/3r2p1/b2N3k/2Q1NK2 w - - 0 1 illegal: No proof kernel
1Nk1nn2/1bqpp2B/1pP2B1Q/1qBp4/5r1N/b2p2R1/N2P1B1p/3R1q1K w - - 0 1 illegal: No proof kernel
rNB1nn2/pB1B1Rpr/1q1B4/kp1qp1P1/2pR2R1/1pn3P1/4K2Q/1N1b4 w - - 0 1 illegal: No possible last move
BbB2K2/q2n1pP1/2p2rp1/2Bp2N1/R3NP1R/Q2R2p1/q2nRp1r/1n5k w - - 0 1 illegal: No proof kernel
2R1r1B1/b2NQ3/1p1rp1B1/1Rr2nPn/npp2Bkp/2N5/2P2pbR/4K2B w - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 g4 dxe4 h4 a5 g5 Qd5 g6 Qg5 hxg5 axb4 a4 Kd7 d4 Ke6 d5+ Kf5 d6 h5 g7 c5 d7 e3 d8R h4 a5 c4 a6 f3 a7 e6 Ra4 e2 Rd3 f2+ Kd2 e1R Be2 Nh6 g8B Bc5 Bf3 Na6 Bb2 Re5 Re3 f1N+ Ke1 Ng3 Qd8 Nh5 Be4+ Kg4 Qe7 f5 Nf3 f4 Nc3 Nf5 Rh2 Bb6 Ra2 Nc5 Bc1 Na4 Rd3 Rh7 Rd8 Rc5 Rd5 Rb8 a8B Ba7 Ra3 b6 Ne5+ Kg3 Bc6 Bb7 Nd7 Kg4 Re5 Ra8 Bh1 Rc8 Bce4 Re8 Bd3 Bg2 Ra1 f3 Bf4 Nfg3 Bg6 Nf5 Rd1 Rf7 Rd6 Rff8 Rc6 Rd8 Rc8 Rfe8 Nf8 Rd6 Nd7 Rc7 Ra5 Rc5 Rb5 f2+
2B1Nnbr/2B1p3/pQp5/3N2rR/Pp1bP1B1/n3p1Kn/B2p4/R2b2Nk w - - 0 2 illegal: No proof kernel
K5N1/1pb3qR/1Pp1n2Q/rr1R1Nq1/2bn1R2/N2nn2N/1rP3BB/3bk1n1 w - - 0 1 illegal: No possible last move, all moves rejected
K1b2k2/n4pr1/N2Nr2b/2pRN1rb/2Qq1n2/2Pn1P2/2rr1B1R/1B2RqR1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 Ke2 h5 Ke3 e5 d4 c5 a4 b5 g4 b3 d5 b4 g5 h3 d6 h2 a5 h4 f3 h3 a6 b2 g6 b3 c3 Nf6 g7 Rh5 g8R Nd5+ Kd2 e3+ Kd3 e4+ Kc4 e2 Kb5 e1R a7 e3 Bc4 e2 Bd3 Nc6 Na3 b1B Be3 b2 Bf2 Rg5 Qb3 Nf4 d7+ Ke7 Rh8 Bh6 Nc4 Rc1 Bg6 e1N Nd6 Rc2 Qc4 Ned3 Ne2 Rd2 Rg1 h1R Bh7 Rh2 Nc1 Rhg2 Be4 h2 Rh7 Qh8 Kb6 h1Q d8R Qd4 Kc7 Rb8 a8N Na7 Bf5 Rb6 Bg6 Bg7 Rh2 Bh6 Bh7 Ra6 Kb8 Rc6 Rd7+ Kf8 Nc7 Bc2 Bf5 b1R+ Ka8 Rb2 Na6 Rg7 Re1 R2g5 Bh7 Qf1 Bf5 Nb4 Nd3 Bb1 Ne5 Nbd3 Nb5 Re6 Nd6 Nb4 Bh7 Bg6 Rac1 Bh5 Bb1 Qh1 Rg1 Rbc2 Rce1 Qg2 Ne8 Qh1 Rd5 Nbd3 Nd6 Qg2 Qb3 Qh3 Qc4 Qf1
3r3q/1p1bKRQB/1Rn2n2/Bn2p1n1/1PB4r/1nbNqq1k/1B2PR1b/5N2 w - - 0 1 illegal: No proof kernel
r3bQ2/pp3B1r/3q1R1N/1Pk1N1b1/rb1Rq2n/Rb4BB/P2n1bn1/4R1K1 w - - 0 1 illegal: No possible last move, all moves rejected
1r1qQ2K/q7/R1p1r3/2Pbp2B/1Rn1Bb1n/rRB1P2N/kbN3R1/2rnq3 w - - 0 1 illegal: No proof kernel
q3qnk1/N2Np2N/1pQB3r/2BR2K1/2nnPb2/bPN5/5rbR/rB2q1b1 w - - 0 1 illegal: No proof kernel
2qkrbRR/K2pbp2/N1b1B3/N3r3/2NB1R2/2qP1PrQ/Rb1n4/1n2q1n1 w - - 0 1 illegal: No proof kernel
q2nB3/RBpR2q1/Kq4pn/N1qQb3/2Rr4/5qPq/k1P1NqR1/2r1Bb2 w - - 0 1 illegal: No proof kernel
qq1kB1qQ/pBq3N1/Ppb2r2/nP3n1N/1b1q1R2/K2N1B2/3rqn1R/6B1 w - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 d5 gxh4 d6 cxd6 Qd3 d5 Qd1 d4 Kd2 d5 g4 f5 a4 h5 b4 h3 e4 d3 Kc3 d4+ Kb2 b6 c4 f3 a5 d2 g5 h2 e5 h4 b5 h3 a6 f4 c5 f2 g6 d3 g7 f3 e6 Rh6 e7 Nc6 Ka2 Bd7 Qa4 d1Q Qh4 d2 Bc4 f1Q Be6 f2 Ne2 Qg1 Nd4 f1Q Nf5 Qde2 Na3 d1Q+ Nc2 Rf6 Ka3 Na5 c6 Nh6 c7 Qf4 c8B Qfc7 Nb4 Qg5 Rf1 h1N Be3 h2 Rf4 Qdg1 Bd5 Qg6 Nd4 Nf5 Qh8 Rb8 Ne6 Qgd1 Bg1 Nf2 Rc1 h1Q Bh2 Qdd2 Re1 Qhe4 Rh1 Qg5 Bg1 Qeg2 Bc4 Qa8 Bb7 Bc6 Rh2 Kd7 Ba2 Qe8 Bb1 Rd8 Be4 Qg3+ Bf3 Qcb8 Re4 Qgc7 Rf4 Qf7 e8B+ Ke7 Re4 Qdf4 Rc4 Rd2 Nd3 Qfe5 Rf4 Qd4 Nec5 Kd8 g8N Rd6 Nf6 Qg8 Nh5 Rf6 Qg7 Bd6 Qh6 Qdd5 Qh7 Be5 Qh8 Bc3 Ne6+ Ke7 Rfh4 Qd4 Neg7 Kd8 Rf4 Bb4+
2nrqK1b/2k5/bprRrp2/1r1nn3/1B1BRP2/RP2N1b1/2NQ3R/1Bn3n1 w - - 0 1 illegal: No possible last move, all moves rejected
1n1QK1N1/2p2r2/q2bRr2/BrP1pB1q/4nnb1/3RnR2/1B2Pr2/1k1N1R1n w - - 0 1 illegal: No proof kernel
6nq/R3r2R/Q1rp1rb1/2R1p2p/3P1Bk1/3B1b1n/qbBNN1KP/nq2R3 w - - 0 1 illegal: No possible last move, all moves rejected
RnNb4/1K1ppr2/1pB1qRb1/NPNP1b2/6R1/B1n1n1R1/nr4Q1/3k1nq1 w - - 0 1 illegal: No proof kernel
5n2/R1Rb1rnp/BN3p2/1qp3nk/2P1Nn2/r2nBP2/2r1NR1K/1QR2qb1 w - - 0 1 illegal: No possible last move
N1q2rq1/1b1b1p1n/3BrR1K/k2B3R/Nn2pb1p/2B1P2r/r4P2/2Q1r1NN w - - 0 1 legal: proof: c4 d5 b4 dxc4 h4 g5 b5 gxh4 b6 axb6 Qa4+ b5 Qd1 b4 a4 Kd7 d4 Kc6 Kd2 Kb6 Ke3 e5 g4 c5 d5 h5 g5 h3 d6 c3 d7 h4 g6 c4 g7 b3 Rh2 b2 Rg2 c2 Rh2 c3 Kf3 Ka5 Kg4 b5 e3 b4 Bg2 b3 Ra2 Bd6 Bd2 c1Q Bd5 Na6 Rg2 Nf6+ Kg5 h2 g8N h1B Nh6 Rf8 Nf5 Nh7+ Kh6 Nb4 Rg6 c2 Nc3 b1R Ng3 b2 Rf6 Ra1 Be1 b1R Rb2 Bf3 Nh1 Ra2 Bd2 Qe8 d8B+ Bc7 Be1 Ra6 Be7 Re6 Bd6 Bd7 Rb3 Qc8 Ra3 Qd2 Qc1 Qd4 Bd2 Qg4 Be1 Qg8 Rb3 Ka6 a5 Be4 Na4 Bb8 Qa3 c1R Bc3 Re1 Qc1 Kb5 a6 Ka5 a7 Bc7 Bc4 Bb7 a8N e4 Bd5 Bb8 Nh3 Rg1 Rb2 Rg3 Ng1 Rh3 Rd2 Rbb2 Rd4 Re2 Rc4 Re1 Rc5+ Ka6 Bb3 Bc7 Rh5 Bb8 Bd5 Ka5 Be7 Bg3 Bd6 Bf4+
2Q3b1/6R1/2rk1NB1/2nnR1Nr/R1nBnp2/2p2b2/2PqpPr1/bB2KR1q w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 d4 Kd7 a4 c5 g4 b5 g5 e5 d5 f5 g6 h5 g7 e3 a5 c4 a6 e4 a7 h3 d6 f4 Ra3 h4 Qf3 e2 Rc3 h2 Qg3 b3 Bb2 h3 Qg5 b4 Bc1 b2 Qa5 b3 Bg2 Nf6 g8R Bg7 Qa3 Na6 Qc5 Nd5 Be3 Rh5 Qa3 Nc5 Kd2 e1R Nf3 Rg1 Bd4 e3+ Ke2 Rb8 a8B Rb6 Ng5 Rc6 Nd2 b1N Nde4 b2 Qa6 Nd2 Ra3 b1N Ra4 Na3 Re8 Qa5 Re5 Qc3 Bf3 Rg2 Rf1 h1B Ke1 h2 Be2 Qb4 Bd3 e2 Bb7 Rg3 Ba8 Bf3 Bb7 h1Q Nf6+ Kd8 d7 Kc7 d8R Be6 Re8 Bg8 R8e7+ Kd6 Bg6 Rg2 Rf7 Bh8 Rg7 Qa5 Ba8 Qd8 Qb7 Nde4 Qc8 Qa5+ Bc3 Rg4 Ra7 Bg7 Ree7 Nc7 Nd7 Ra6 Bd5 Rc6 Re8 Bd4 Re5 Rg2 Nf6 Qb4 Bd2 Ba1 Bc3 N7e6 Rg7 Nc7 Bd2 c3 Ba2 Nd5 Be3 Qd4 Bb1 Qd3 Bd4 Nc4 Rh7 Qe3 Rg7 Qd2#
4r1K1/1B1R1nb1/2rqp3/pqNn2N1/PbpNB3/B3Pb2/3kq1rN/1R3Q1r w - - 0 1 illegal: No proof kernel
1BQN1n1K/3rk1p1/1n2qN1p/r1rBp3/R2q1N2/bb1rP1PR/N7/bq1R4 w - - 0 1 illegal: No proof kernel
NR4r1/2R2p2/nb5n/1K1pN2Q/N2NnB2/1nRP1rp1/1nB2Pnr/1b1q3k w - - 0 1 illegal: No proof kernel
R3r1nb/RN1rk1bp/1n1pB1n1/1bn2K2/8/n1B1Q2P/pn1P1R1B/1B2q2N w - - 0 1 illegal: No proof kernel
6Kn/nBb1Bpb1/1Rn2PN1/3N1kr1/1RbQ4/rbRp2Bp/rR1P2n1/4q3 w - - 0 1 illegal: No proof kernel
1bn1RbN1/nrp4p/rnPQ1BBP/1p3KR1/R1N3b1/2nR2rB/2q2k1b/8 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 h4 Kd4 c4 b5 a4 g5+ Kg3 Bh6 f4 e5 c5 e3 h5 e4 f5 b3 d3 e2 a5 e1N f6 e3 f7 e2 f8R b2 a6 Ng2 a7 e1B+ Rf2 Ne3 Nc3 b1N Rh3 Nd5 Ne4 Nge7 Bb2+ Ke3 d4 Nbc6 Nf3 Rb8 Bd3 Rb7 Nfd2 Re8 Ra2 Bf8 h6 Be6 Ra5 Nc8 Ra4 Bf5 Ba1 Re6 Nf6 Qe8 Be4 Qg6 Ng8 Rd6 Rh5 Bd7 Bg2 Qc2 Bh3 Re6 Ne4 Ba5 Nd2 Bb6 Rf7 Rf6 Re7+ Be6 Re8 Rg6 Kg2 g3 Bb2 g4 Rg5 Rb8 a8B Ba7 Ba1 Rb6 Bb2 Bb8 Bc3 N6a7 Ba1 Nb4 Be4 Rb7 d5 Rf6 d6 Nd5 Be5 Nbc3 d7 Bf5 d8R Ra6 c6 Ndb6 Bf6 Bd7 Kh1 g2+ Kh2 g1B+ Kg3 Bh2+ Kh4 g3 Bg6+ Be6 Nc4+ Kf2 Qd5 g2 Qc5+ Ke2 Rd3 g1R Qd6 Kf2 Kh5 Bd5 Kh4 Bg2 Kg4 Bf3+ Kf5 Rg3 Re5 Bh5 Re8 Bg4+
1n1Nb3/4b1p1/1nrpn1Q1/B4N1b/RrB1rpR1/qN1P2P1/1n2Kb1k/2B1B3 w - - 0 1 illegal: No proof kernel
N4Bk1/rp1R4/RPn2qq1/2r2r1p/Bp3r2/1b2BQ2/1bN1qn1P/K2B1qN1 w - - 0 1 illegal: No possible last move, all moves rejected
5R2/4k3/p1prnq2/3pB1B1/Np1PnR1n/2brN1KB/1P2b1b1/RQ2Bqr1 w - - 0 1 illegal: No proof kernel
rqr3K1/4qRbp/pQbq3P/1NB1p3/1p2nbR1/2n3RN/P1BB4/kn5R w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 cxb6 Ba3 b5 Bc1 b4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 b5 h4 b3 c4 b4 h5 g3 d3 b2 f5 e3 c5 e2 f6 e1Q f7 a6 c6 g2 h6 Bd7 c7 Nc6 c8R Na7 Nh3 g1B Nc3 b1N Rc7 Nf6 Bd2 Bc6 Qe2 g6 Qe6 Bg7 f8B Bh2 Bg2 Qe8 Be4 Qb8 Rg1 Nb5 Rg4 Qg3 Ra7 Qgd6 Rg3 N1a3 Rh1 Nb1 Rb7 Nd5 Qf6+ e5 Rf7 Rg8 Be7 Rc8 Bf8 Qe7 Bf5 Nd6 Nb5+ Kc5 d4+ Kc4 Rg4 Ndc3 Bc2 Bg3 d5+ Bf4+ Kh4 Nde4 d6 g5+ Kh5 Qba7 d7 Qb8 d8R Qed6 Rg3 g4 Rdd7 Qe7 Rd5 Qed6 Qd8 Qe7 Qb6 Qed6 Rdd3 Qe7 Rg2 g3 Rgg1 g2 Rg3 Qeb7 Bc5 Qe7 Kg4 Qed6 Kf5 Qe7 Re1 g1Q Rg4 Qd4 Re3 Qg5+ Ke6 Qdd8 Rf8 Qdd6+ Kf7 Qge7+ Kg8 Ne2 Ra3 N2c3 Ba4 Kd3 Rb3 Kc2 Ra3+ Kb2 Bc2 Be8 Rf7 Ka1 Rb3 Nd1 Rf3 Ndc3 Rfg3 Bc6+
2rrR3/p1pN1rQ1/3qB1K1/BB1b3n/P2N2n1/k1PR1pNp/N2n4/bb4q1 w - - 0 1 illegal: No proof kernel
1k3b2/1N3N2/5Rp1/r1QrR2n/pN1p2Pp/1R1b1RqP/K1b2nb1/bB4Bq w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 exf6 Bf4 f5 Bc1 f4 Kd2 d5 c4 Kd7 Kc2 Kc7 b4 f5 Kb2 h5 g4 a5 e4 a3+ Ka2 f3 e5 a4 h3 g6 e6 f4 e7 d3 e8R d4 b5 d2 b6+ Kb7 c5 f2 Bd3 f1B Qc2 d1B Re5 f3 Be3 f2 Nf3 h4 Nc3 Qd6 Nd5 Ra5 Ng5 Nc6 Nf7 Bf5 Nb4 Kb8 b7 Bg2 Rf1 Nf6 Qc4 Rg8 Bb1 Nh5 Qb5 Bdc2 Qb6 Ne7 c6 Bfd3 Qb5 Nf5 c7+ Ka7 b8R Nfg3 Rb6 Nh1 c8N+ Ka8 Qc5 Rh8 Rd1 f1Q Bg1 Nf2 Rc6 Qc7 Rf6 Kb8 Ncd6 Qe1 Nb7 Rh6 Ref5 Qg3 Rf3 Qe4 Re1 Rh7 Nh8 Rd7 Nf7 Rd5 Re2 Qef4 Re5 Qc1 Bh2 Qh1 Bg1 Be4 Rb3 Bcd3 Bc2 Bf5 Rf1 Bfe4 Bb1 Bc2 Ka1 a2 Kb2 a1B+ Ka2 Nd3 R1f4 Nf2 Rff3 Bed3
1N6/2n1pqKR/1Nq1pp1r/r2bq1b1/2pB1RBn/N1P1P1q1/5N1k/1B2Qq2 w - - 0 1 illegal: No proof kernel
2Q3Nk/2Np2pq/n1r1N1P1/R2P2p1/1b1nr1b1/2R2BbK/3BBp2/nq2b1B1 w - - 0 1 illegal: No proof kernel
2KR4/3N1r2/1NNnq2R/RB2rb1q/pppBpq2/kP3Qq1/2bnP2b/2R5 w - - 0 1 illegal: No proof kernel
1R2BK2/rpnr1pRq/1qQbk2q/Nn4p1/1PN2pP1/1n5b/3B3n/B2B2N1 w - - 0 1 illegal: No proof kernel
2nqKN1R/p1NrBpp1/8/k1Bb1R2/5NQp/rrb3NP/B2r1Pn1/4n1q1 w - - 0 1 illegal: No possible last move
nB1k4/3NprB1/pb1q1r1p/1Q1b3n/1q4Nr/PR1B3K/1B2rp1P/1NbR4 w - - 0 1 illegal: No possible last move
1b1r2n1/p1n3pp/RrRq1nP1/qNQ4B/3p4/K4b2/bp1R2BP/Nk4BB w - - 0 1 illegal: No possible last move
K5bb/n1p1n1p1/p1Rr1rkq/3B1NB1/2qp1R2/P1r2QP1/2p3N1/1B2R1Bb w - - 0 1 illegal: Other
2r1k1N1/2pN3p/2rb1p2/pb3QB1/P2N1n1n/1b1p3b/K1B1bPN1/B2qR2R w - - 0 1 illegal: No possible last move, all moves rejected
KnrR4/Br3N1p/N2b1pn1/p2n2pP/Q2p2b1/4BN2/2NP2q1/Rrk3nB w - - 0 1 illegal: No proof kernel
2N2r2/p5Bk/Kn2b1rB/npN5/NbR1p1p1/PpQB1q2/3b2P1/1n1B2Rb w - - 0 1 illegal: No proof kernel
Q2nrB1K/Rn1n2pR/R2b2P1/Bp1p2B1/3Nr1B1/2nPN1pp/5kb1/2q3q1 w - - 0 1 illegal: No proof kernel
N1K1QR2/3nr3/2rBpp2/bBR2NRp/2qRrBn1/pb3P1P/q5p1/6kr w - - 0 1 illegal: No proof kernel
3RQB2/pp1bp2B/1n3b1N/NBb1P3/R1r5/q3RrRK/Pbnpp3/2q2k2 w - - 0 1 illegal: No proof kernel
2Rbn3/1pN1k1p1/4p2K/1r1B3p/B1R2Q1q/qP1N1BPb/1r1B3p/n1N1q2q w - - 0 1 illegal: Other
1B1n1rk1/5rp1/6P1/b2N1npp/2pqrN1Q/1p4N1/1RP1bNpK/R1R2r1B w - - 0 1 illegal: No proof kernel
2b1R3/1qPr1r2/b2BQ1q1/N1n5/6b1/NP1qq1q1/N1r2kBQ/R2K2N1 w - - 0 1 illegal: No possible last move
k1bR2Bq/1R1bKb1b/nb2N1r1/Rr6/5b2/Pb1R2B1/1pN4P/4Q2Q w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 g4 h5 gxh5 exf4 d4 c5 dxc5 d5 c6 d4 c5 Nd7 cxd7+ Kxd7 c6+ Ke8 Kf2 g5 Kf3 b5 Ke4 f5+ Ke5 b3 e4 f3 a3 f2 c7 Kd7 h6 Kc6 h7 Kb7 Bf4 b2 Qg4 b4 Qg2 g4 Bh6 g3 Be3 d3 Bd2 f4 Bc3 f3 Nh3 b3 Ng5 d2 Rg1 d1B Nd2 b1B Bc4 f1B Qh1 b2 Ne6 f2 Nf3 g2 Ne1 Bh6 Nc2 Ne7 Kf6 Ra6 e5 Ka8 Be1 Nd5+ Kf7 Re8 h8R Bf4 Rh7 Nb4 Rh5 Qd4 Kf6 Rf8+ Ke7 Rf5 Rh7 Bh5 Rf7 Ba2 Rd1 Bb3 Rd3 Bfe2 Rg7 f1B Bg3 Beg4 Rh7 Bd7 Rg7 Bf7 c8R+ Kb7 Rc5 Ka8 Ra5 Rg5 Rh7 Bf5 Rg7 Bh7 Rg8+ Bc8 Rd8 Be2 Rgd1 Bg4 Rd7 Qc3 Rb7 g1B Rd8 Bgf5 R1d3 Bb6 Nc5 Bf7g6 e6 Bbc7 Kf8 Qe5 e7 Qh8+ Bg8 Bgf7 e8Q Bd7 Qee1 Re5 Rab5 Rg6 Ne6 Na6 Ke7 Bb6 Ra5 Rb5
5bQ1/rb2K3/r2N1R2/2R1B3/n1r2PrN/1P3pbB/r1k2BbQ/5nB1 w - - 0 1 legal: proof: h4 d5 c4 g5 cxd5 gxh4 Rh3 a5 Rc3 b5 Re3 a4 Rh3 b4 Rh1 b3 axb3 a3 f4 axb2 e3 e5 Ra4 exf4 Ra1 f3 Ba6 f5 Bf1 f2+ Ke2 f4 Kd3 f3 Kc3 Qf6+ Kc2 Qf4 exf4 Bb4 Na3 Bc5 Nb1 Bf8 Kc3 Ke7 Kb4 Kf6+ d6 Kf5 Kc5 Ke4 d4 h5 g4 h3 d5 h4 g5 h2 g6 h3 g7 Ra7 Ra2 Nh6 g8Q Bb7 Ne2 Ng4 Be3 Nd7+ Kb5 c5 Rg1 h1B Qd2 h2 Na3 b1R Rc2 c4 Nd4 c3 Nf5 Rh4 Bh3 f1R Nc4 Rbc1 Bf2 Nb6 Kc5 Ne3 Rg6 Bg2 Rf6 Rg4 Nh4 h1R Bg1 Rh2 Qf2 Bg7 d7 Kd3 Kd6 Na4 d8B Bf8+ Kd7 Ra1 d6 Rfc1 Bc7 Nf1 Ke8 Ra2 d7 Rca1 Rc1 c2 d8B Rh1 Nd6 Kc3 Rd1 c1B Rd5 Be3 Rc5+ Kd3 Qg3 Bf2 Qh2 Bg3 Bb8 Rc1 Bb6 Rc4 B8c7 Bh6 Ke7 Kc2 Ne4 Ra6 Be5 Ra7 Nd6 Bf8+ Kd8 Ne3 Bf2 Rha1 Ke8 Nf1 Kd8 Bh6 Ke7 Bg7 Bg1 Bf8+ Kf7 Ra3 Ba5 Nb2 Be1 R1a2 Bef2 R3a6 Ke8 Na4 Kd8 Bh6 Ke7 Bf8+
1kNBb1nQ/2NR1P2/K4p2/4p2R/B5N1/1Pn5/1q3bb1/QrNb1q1b w - - 0 1 legal: proof: h4 d5 c4 g5 cxd5 gxh4 Rh3 a5 Rc3 b5 Re3 a4 Rh3 b4 Rh1 b3 axb3 a3 e4 axb2 e5 Qd6 e6 Qf4 Ke2 Ra4 Kd3 Qg3+ f3 Qf2 Kc3 Rg4 Kc2 Rg7 f4 f6 f5 Rf7 exf7+ Kd7 Kd3 Qxf5+ Kc3 Qf3+ Kc2 Qf2 Kc3 e5 Kc4 c5 Kb5 Kc7 g4 h5 d4 h3 g5 h2 d6+ Kb7 d7 c4 d8Q h4 d5 c3 d6 c2 g6 h3 d7 Qd2 g7 Qc3 Na3 b1B Be3 c1Q Nc2 Q1b2 Ne2 Qc1 Bb6 Bc5 Ne3 Bc2 Ng4 Nc6 Ra7+ Kb8 Qf8 Rh7 d8N Bf2 Ne6 Nce7 Rd7 Q3b2 Bd8 Nd5 Nc7 Nc3+ Ka5 Qf4 Qa1 Bd1 Nc1 Bb7 Bc4 Bg2 Bb5 Qc4 Ka6 Qf1 Rg1 h1B Qe8 Ne7 Qh8 h2 g8N Bc6 Rg3 Bhg2 Rh3 h1B Rh5 Rg7 Rd2 Be8 Rd7 Nf5 Ne7 Nh6 Nc8 Ng8 Nh2 Rg3 Ng4 Re3 Nd3 Re1 Ba4 Bdf3 Rd5 Rb1 Rd7 Nb5 Nc1 Bd1 Rd6 Nc3+ Rd3 Ne2 Rd7 Nc3+
1K1N2qb/3pn1n1/R1PRBnPk/2N5/r1nQ4/Bpn2R1n/2Q4R/3r4 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 c5 d4 f5 exf5 cxd4 a4 b6 a6 Qc7 a5 Bb7 axb7 Qd8 a6 Nc6 b8N Nxb8 Ke2 Kf7 Kd3 Kg7 Ke4 e5 Kd5 h5 g4 b5 c4 h3 f4 b4 a7 h2 g5 b3 c5 d3 f6+ Kg6 f7 e4 Ba3 d2 Ne2 h4 Nd4 e3 Ne6 h3 Nc3 e2 Na4 e1N Qc2+ Nd3 Rd1 Bg7 Kd6 Nf6 f8Q Nc6 f5+ Kh7 g6+ Kh6 Qe7 Qg8 Kc7 Nb2 Nd8 Nc4 Qe5 Ne7 c6 Rh7 Bg2 Bh8 Bd5 Rf7 Be6 Rh7 Rb1 d1N Nc5 Nc3 Qd4 Rf7 Rhd1 h1N Rb2 h2 Rd3 Nf2 Rf3 N6g4 f6 h1N Rd3 Rf8 f7 Nf6 Rf3 Re8 f8R Ng3 Rf7 Ngf5 Ra2 Rb8 a8R Ng7 Ra6 Ra8 Kb7 Ra7+ Kb8 Nh3 Rf8 Ng4 R8f5 Nf6 Rd5 Rf8 Rd6 Rf7 Rb6 Ra4 Ra6 Nfe8 Rg3 Rf1 Rf3 Rd1 Qce4 Nh5 Rh2 Nhg7 Qc2 Nf6
1N2rr1Q/Q4pPr/R1B5/3R1bq1/2K3q1/2pR2q1/2P2q1R/1qkN1B1q w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 Ne2 axb4 Ng1 e3 Na3 e6 Nb1 e5 a4 b5 Bb2 e4 Bd4 b3 Bf6 b4 Bb2 Bd6 Bc1 Be5 fxe5 Nc6 h4 Bd7 g4 Qe7 e6 Qd8 g5 Nh6 Bb2 Na7 Bf6 Nb5 axb5 gxf6 Ra7 f5 Ra6 f4 Ra1 Nf5 h5 Bc8 Na3 Ne7 Nb1 Ng6 hxg6 Ra6 Ra3 Ra4 Ra1 Ra8 Ke2 Ke7 d4 Kd6 g7 Kd5 g8B Kc4 g6 c5 b6 h5 e7 h4 e8R b2 d5 h3 d6 b3 g7 h2 b7 f3+ Ke1+ e2 Kd2 f2 b8R Rh7 Re5 Bf5 Nc3 b1Q d7 b2 Ra6 Qf6 Rb7 Rf8 d8Q Qe6 Ke3 Qc1+ Q1d2 b1Q Rb3 Qg6 Nd1 Qg4 Rd3 e1Q+ Ne2 Qg1 Nc3 Qg4 Red5 Kb4 Qe8 c4 Nd1+ c3 Kd4 e3+ Nf4 e2 Qde3 Qh5 Ng6 Qcd2 Ne5 Qg4+ Qf4 Qdc1 Nd7 Qcd2 Qfe4 Qdc1 Nb8 Qcg5 Rh6 Ka3 Kc4 Ka2 Qd4 Ka3 Bg2 Qg1 Bf1 e1R Qc8 Ree8 Qd8 Rh8 Bh7 Q1g3 Bg6 Rh7 Qc8 Bd7 Be4 Bf5 Qd8 Qb7 Rb6 Ka2 Rh6 Kb1 Ra6 Kc1 Qa7 Qb1 Rc5 Q4f3 Bc6 Qe2 Rd5 Qe6 Rg1 h1Q Rg2 Qc8 Rh2 Qe6 Bg2 f1Q Bh3 Qff2 Bf1 Qh5 Qh4 Qhg5 Qh5 Rhh8 Qh7 Qc8 Qg8 Rh7 Qh8 Qe6 Rh5 Qee2 Rh2 Qeg4+
4k1r1/q1n1b2q/1R2Q1P1/b4R1Q/b2RN3/N2Brn1b/4B2P/rqKR2b1 w - - 0 1 illegal: No possible last move, all moves rejected
1RB2N1Q/1q1Rb1PB/7K/rnb2b1B/1q2B2n/4q2n/1kP1N2Q/b1b3r1 w - - 0 1 legal: proof: e4 c5 d4 f5 dxc5 fxe4 b4 a5 f4 axb4 f5 h6 f6 Na6 fxg7 Nb8 g4 Nc6 g5 Nb8 g6 Qc7 Be3 Qd8 Bg5 hxg5 Ke2 b5 Ke3 d5 h4 Kd7 a4 Kc6 h5 e5 h6 b3 h7 d4+ Ke2 Kd5 c6 Kc4 a5 d3+ Ke3 b2 a6 b4 c7 b3 a7 g4 Nh3 g3 Nf2 g2 Qg4 g1B Qf4 Qe8 Ra6 Nc6 Qg3 Bf5 c8B Be7 Rh3 Nd4 Qg4 Nh6 Bd7 Nb5 Rh2 Rg8 Bg2 d2 h8Q d1N+ Ke2 Kd4 Nd2 Kc3 Rb6 b1Q Nf3 e3 Nd3 b2 Bc8 e4 Qh4 Nf2 Nfe5 Nh3 Bf3 Bf2 Nf4 Qh1 Ba6 b1Q Nd7 Qb4 Bh5 Kb2 Bc8 Qg2 Nf8 Qf3+ Kf1 Qd7 Ne2 Qb7 Qg3 Qf4 Kg2 Qg5 Nd4 e2 Rd6 e1B Ne2 Bc5 Rd7 Qgd2 Qf2 e3+ Kg3 Qc1 Rh1 Bc3 Qh2 Qd2 Rd1 Qdd4 Rd8 Qde4 R1d7 Bd2 Re8 Bc1 Red8 Ng4 Re8 Ne5 Red8 Nf3 Re8 Rb8 a8B Nh4 Red8 Qa7 Bc6 Ra8 Re8 Qd3 Be4 Qb7 Red8 Nf2 Kf4 Ra5 Rd6 Qdd2 R8d7 Qd3 Rf6 Qdd4 Kg5 Nh3+ Kh6 Qe5 Ra6 Qe6 Ra8 Qeb6 Nf4 e2 Rb8 e1B Bhf3 Bc3 Bh5 Ng5 Ne2 Qe6 Bd5 Qe3 Be4 B3d4 Ne6 Re8 g8B Rd8 g7 Nh3+ N2f4 Bc3 Bh7 Re8 Nf8 Rd8 Rc7 Rd1 Rd7 Rg1 Qg2 Ka2 Qd2 Ba1 Qh2 Ng5 Ne2 Kb2 Qc7 Nh3+ Qf4 Ng5 Qh2 Nh3+
1q2rk2/r1R3n1/1rnb3R/1N2RBQQ/R3r3/1P2qb1K/Pn2B1b1/N1q5 w - - 0 1 legal: proof: c4 a5 h4 f5 d3 g5 Be3 gxh4 Bc5 b6 e4 bxc5 exf5 d5 cxd5 a4 b3 a3 Qd2 Ra6 Qc1 Ra8 Qb2 axb2 f4 e5 Kf2 h5 g4 h3 Kg3 c4 g5 c5 f6 h2 g6 c3 g7 c4 d4 e4 f7+ Ke7 f5 e3 Ne2 c2 Na3 b1N Nb5 c1Q Kh3 Nf6 g8B h4 Bh7 c3 Bg6 c2 d6+ Kd7 d5 Na3 Rb1 Bb7 Ned4 Nh5 f6 Nc4 Be2 Ra7 Be4 Qe1 Rc1 Ng7 Bh7 Be7 f8R Nb2 f7 Nc6 Re8 Qb8 f8R Qf2 Rf5 Qg1 Rc8 Re8 Re5 Qg5 Rcd1 c1Q Rc7+ Kd8 d7 Bd6 Nc2 Qe7 Bh5 e2 Na1 e1R Rd4 Re4 Bf5 Qeg5 Bf3 Qge3 Ra4 Ba8 Rg1 h1B Rg6 Bb7 Rh6 Ba8 Be6 Ke7 d8Q+ Kf8 Qg5 Bb7 Qh5 Ba8 Bf5 Bb7 Kh2 h3 Be2 Bf3 Kg3 h2 Kh3 h1R+ Kg3 Ba3 d6 Ba8 d7 Bd6 d8Q Rg1+ Kh3 Rg6 Rh7 Nd4 Bd3 Bh1+ Kh2 Ba3 Bf1 Rh4+ B1h3 Rb6 Rh6 Bd6 Qdg5 Baf3 Kg3 Re4 Bf1 Nc6 Kh3 Rf4 Bc4 Re4 Be2 Bhg2+
k2K1nBb/5PQ1/NR3bN1/r4Qr1/1Bn1q1B1/r1q1B3/3P4/nnR2q1b w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 Ke3 e5 g4 h5 f4 c5 b6 b3 f5 c4 g5 b2 b7 Kc7 g6 h3 f6 h4 g7 h2 f7 c3 Qf3 h3 Ra7 c2 Qh5 Nc6 d6+ Kb8 d7 Nge7 g8B Na5 Qg4 Nc4+ Kf2 e3+ Kg3 e2 Bh7 e1N Kh4 e4 Kg5 e3 Kf6 e2 Nf3 Qe8 d8Q Rg8 Qd5 Ng6 Qb5 Qe4 Ra4 Ra5 Nc3 b1N Ba3 c1Q Nh4 Nc2 Na2 e1B Qbf5 Na1 Rb4 Bf2 Rg1 h1R Be2 h2 Rb6 Be1 Bc5 Qc3+ Bd4 Ka7 b8B+ Ka8 Nb4 Bb7 Na6 Bh6 Bbe5 Nf8 Ke7 Bg7 Be3 Bh8 Kd8 Rg5 Ng6 Bh4 Rc1 Rg1 Bg3 h1Q Bd6 Rg3 Bb4 Qf1 Bg8 Rh5+ Qgg5 Ra3 Ne5 Qec2 Qg6 Bh1 Qg7 Qe4 Ng6 Rg1 Q5f6 Rha5 Bd1 Rgg5 Bg4 Rgb5 Kc8 Rh5 Qf5 Bf6 Kc7 Rg5 Kc8 Bd4 Kd8 Bf6+
kn1R1n1B/1n1N1K2/2n3P1/NR1B3r/2br1n1P/4b1Q1/rb2n2q/RR1Q4 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Qb3 g4 e4 h5 Qf3 gxf3 g4 Nh6 g5 Ng8 b4 Rh7 Ra3 Rh8 Re3 Be7 Re2 Bf8 Rg2 Qd7 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 h4 f5 d4 c5 g6 Kc7 b6+ Kb7 b5 a5 e5 a4 d6 a3 e6 c4 d5 a2 e7 a1B e8Q c3 d7 g3+ Ke1 f2+ Ke2 f3+ Ke3 f4+ Kd4 g2 Ke5 c2+ Ke6 Bb2 d6 Rh5 Qf7 Bh6 Nh3 g1N Qe8 Ne2 Kf7 Nf6 Qh8 Qc7 Qg8 Ra2 Qg7 Nh7 Qc3 Nf8 Ng1 Ka8 Bg2 f1N Nd2 Ne3 Nb3 Nd4 Na5 Nd5 Be3 f2 Nf3 c1R Ne5 Ndc6 Bd4 f1N Qg3 f3 Bc3 f2 b7+ Ka7 Bf3 Nf4 Bd5 Nd2 Bd4+ Rc5 Ra1 f1N Bc3 Nb3 b6+ Ka6 Bd4 Rc4 Bc3 Nc5 Bd4 Ne7 d8R Nec6+ Nd7 Bg5 Bh8 Rd4 Re8 Bh6 Ree1 Bg5 Reb1 Bh6 Qb3 Ng3 Qa4 Nge2 Qd1 Qd8 Ne5 Qc7+ d7 Qd6 d8R Bf5 Nd7 Bd3 Qg1 Bb5 Qd1 Bc4 Nf6 Nbd7 b8Q Nb7 Qc7 Ndb8 Nd7 Qa3 Qd6 Qg3 Qa3 Qh2 Qg3 Nc5 b7 Ka7 Re8 Nba6 b8R Nb7 Rbd8 Nab8 Re3 Ka8 Rb3 Nh3 Rb6 Be3 Rb5 Nhf4
1bRQ1qr1/N1Pr2BP/bk1rb2r/6Q1/5B1r/1b2b2N/5QR1/QK3n1n w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Kd2 a5 c4 e5 Kc2 d5 b4 Kd7 h4 Kc7 f6 d3+ Kb2 e4 h5 g3 g6 a4 g7 e3 c5 e2 f7 e1R c6 a3+ Ka2 d4 h6 g2 Nh3 g1B Qc2 d2 Qe4 d1B Qg6 d3 Rh2 d2 Nf2 f3 Ne4 f2 Qf6 f1B Bb2 Na6 Nf2 Bd6 f8Q Nc5 Nc3 Re6 Rc1 Nd3 Kb1 Ne7 g8Q Bb3 Rg2 d1R Nh3 Nf5 Qgg5 Kb6 h7 Bb8 Q8g7 Ne3 Qf2 Rd6 Ba1 Bce6 Q7f6 Ka7 b6+ Ka6 b7 Rg8 b5+ Kb6 Bb2 Qf8 Qfg7 Ra4 Qd4+ Ka5 b6+ Ka6 Qdf6 Rh4 Nb5 Rd2 Na7 a2+ Ka1 Rd1 Qd8 Be2 Bg7 Nf1 Qdf6 Bh2 Qfe5 Bf4 Qb2 Be3 Qc3 Bc7 b8B Rd7 b7 Kb6 Qce1 Bg3 Bf4 Rd2 Qg1 Nf2 Qh1 R2d6 b8Q+ Ka6 Qg1 Nh1 Qef2 Bb5 Kb2 a1R Qbd8 Rh6 Rc4 Ra4 Kb1 Bh2 Rb4 Be2 Rb8 Bg3 Rc8 B2c4 Qdf6 Kb6 Qa1 Bb5 Qd2 Rc4 Qgf2 Ba6 Qdd4+ Rc5 Qdf6 Rc4 Qd8+ Rc7 Bfe5 Rd7 Qe2 Rch4 Qf2 Rdd4 Bef6 Bd6 Be5 Rd3 Bf4 Rd2 Qde7 Rd7 Qe8 Bb8 c7 R2d4 Qed8 R4d6
3BNRqQ/1KQ1b3/B1n3n1/1r1Pr1Q1/8/1b2qr2/krQ1r1PN/n2n3R w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b6 h5 b7 f5+ Ke5 c5 d6 b3 d7 b2 Nc3 b1R Rh2 f3 Bb2 f4 Ke6 f2 Qc1 Kb3 Kd5 h3 e4 c4 e5 f3 e6 h4 e7 Ra2 e8Q Ne7+ Kc5 Ng6+ Qe7 Rh5+ Kd6 Re5 Na4 c3 Rh1 h2 Qd2 h3 Qh6 c2 Qf4 c1N Qg3 Nc6 Ba6 f1N Ba3 Ne3 Nb6 f2 b8Q f1R Nf3 Nd1 Qg5 Rae2 Qc7 Rbb2 Nc4 Rb5 Rb1 Ka2 d5 Nb3 Qc1 Na1 Qc2 Qe8 d8Q Bd7 Rc1 Rff2 Rf1 h1Q Nh2 Qg1 Bb4 Bf5 Ba5 Rf3 Qdb8 Qe3 Bb6 Bh6 Qg5 Qg8 Qe8 Be4 Qee5 Bd3 Qh8 Bf8+ Kd7 Be4 Kc8 Be7+ Kb7 Bd3 Nd6 Bc4 Ne8 Bb3 Ng4 h2 Rb1 h1R Nh2 Rg3 Rf8 Rf1 Rc1 Rf5 Rb1 Rgf3 Rc1 Nf2 Rh1 Re5 Qd7 Rc5 Bd8 Nd1 Qc7 Rb5+
n1B2QRK/2qn1PNQ/2B5/b2r1P2/1Qrk2q1/Q7/1qn1R1qn/1r2bN2 w - - 0 1 legal: proof: d4 g5 h4 gxh4 a4 c5 Bf4 cxd4 Be5 b5 axb5 f6 f3 Bb7 f4 Bf3 exf3 fxe5 Kf2 Kf7 b4 Ke6 g4 Kd5 f5 a5 g5 h5 b6 e4 f6 e5 b5 d3 Ke3 d2 c3 h3 g6 h2 g7 h4 b7 h3 b6 a4 f4 a3 f7 a2 f5 Nf6 g8Q Bb4 Qg6 Ra5 Qg7 Qc7 Ne2 Rc8 Qh8 Ne8 Qc2 d1R Na3 Rb1 Rg1 h1Q Qc1 h2 Ng3 Qg2 Nc4 h1N Nh5 Nf2 Qh7 d6 Be2 Nd7 b8Q Rb5 b7 Ba5 Ng7 Ng4+ Kd2 e3+ Kd3 Nh2 Qa3 Rc5 Nd2 Rc4 Bd1 e2 Ba4 e1B Nf1 e4+ Ke3 Ke5 Bc6 d5 Qa8 Rd8 b8Q Rc1 Rb1 a1Q Rb2 Rb1 Re2 Qb2 Qb6 Qa7 Qb8+ Nc7 Qc8 Qb7 Qbb4 Na8 Qb8+ Qc7 Qf8 Ra4 c4 Rb4 c5 Rc4 Rc2 Qg6 Qbb4 d4+ Ke2 e3 Kd3 e2 Rg5 Kf6 Ke4 d3+ Kd5 d2 Rg2 Qgg3 Rg1 Kg5 Ke6 Kf4 Rg2 d1Q Rg1 Ne5 Kf6 Rd5 Rg2 Ke4 Rg1 Bc3 Rg2 e1N Rce2+ Kd4 Nh5 Qf3 Kg7 Qbc1 Kh8 Rd6 Rc2 Nd7 Rg8 Qg2 Ng7 Qdg4 Re2 Nc2 Bf3 Qa7 c6 Be1 c7 Qb2 c8B Qc7 Bc6 Rd5
1r2nQ2/2knr2r/2N1RQ2/b3PB1r/1bB3b1/nP6/1R1r2R1/1NKr1R1r w - - 0 1 illegal: No possible last move, all moves rejected
3b2b1/nK1nqQ2/1q5k/P4BNn/1n1rb1b1/1Q1R1Bq1/P3N1q1/R4R1R w - - 0 1 illegal: No possible last move
Q1K1Q2r/1P2Rr2/1B1q1b2/2nN3p/1Bk1r1N1/bRPb3N/N1q5/3nn2q w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 h4 gxh4 b4 a6 b6 Bg7 b7 Nh6 b5 Bf8 b6 Ng8 Bb5 axb5 Ke2 Kf7 Kd3 e5 Ke4 d5+ Kf3 h5 g4 h3 f6 Ke6 f7 h2 g5 b4 g6 b3 g7 d3 Nc3 d2 Nh3 b2 Ra3 b1Q Re1 d4 Ke4 h1Q+ Qf3 d1N Rb3 d3 Na2 Na6 b8Q Qd6 c3 Qc2 Be3 Ne7 g8N Nf5 Nf6 Nh4 Nd5 Ra7 b7 Ng2 Bb6 d2+ Qd3 Bd7 f4 Bb5 Qa8 Be7 f8B Nc5+ Kf3 Ra3 Qe3 Bd3 Qe4 Ra4 f5+ Kf7 f6 Ke6 Qg6 Re4 f7+ Bf6 Re3 Ne1+ Kg3 Rf4 Be7 e4 f8N+ Ke5 Re2 e3 Qge8 Rc4 Nh7 Re4 Rg2 e2 Rg1 Bg7 Nhf6 Bf8 Rg2 Ne3 Rg1 d1R Ng4+ Ke6+ Kh4 Ra1 Kg5 Nd1 Nab4 Ra4 Na2 Rf4 Rg2 Rf7 Rg3 Re4 Re3 Nf3+ Kg6 e1B Re2 Bh4 Re1 Na4 Re3 Bf6 Re1 Qa3 Bb4+ B8e7 Re3 Nc5 Re2 Kd6 Kf5 Ne1 Qed8+ Kc6 Qe8+ Nd7 Re3 Kb5 Re2 Kc4 Re3 Be5+ Ke6 B7f6 Re2 Bd4+ Kd6 Bc5+ Kc7 Bce7 Kc8 Nc5 Bc7 Qa6 Bd8 Qd6 Bb6 Bf8 Re3 Bh6 Re2 Bc1 Re3 Ba3 Re2 Rd4 Re7 Re4
2BbN1Qn/P2b2rp/n2rrB1R/4K3/1k3r1b/4R1q1/1P3n2/Q2rNN1N w - - 0 1 illegal: No possible last move, all moves rejected
n1n3K1/QrB1pR2/4QNB1/2NbRP2/4Q1qn/1n2r2q/1QPqk3/2n2b2 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 b4 a5 h4 gxh4 Nh3 a4 Ng1 Bh6 Bd3 Bf4 Be2 Bc7 Bf1 Ba5 bxa5 Ra6 Ke2 Ra7 Ke1 Ra8 Kd2 Kf7 g4 Kf6 f4 d5 a6 h5 a7 e3+ Kd3 e2 g5+ Kf5 b6 Kg4 b7 h3 g6 h2 g7 h4 f5 a3 Nc3 a2 Bd2 h3 Nf3 e1N+ Ke2 d3+ Ke3 d4+ Ke4 Ng2 Ke5 Nh6 Rg1 h1B Rc1 a1N Na2 h2 Be1 d2 Bc4 d3 Bg8 Na6 b8Q Nc7 Qb5 Nb3 Nc3 Ba6 Bh7 Rb8 a8Q Rb7 Qe2 d1Q Bg3 d2 Ne4 Nh4 Qa7 Na8 Ke6 Nf7 Bg6 Nd6 g8Q Nc8 Kf7 Bg2 Qe1 h1Q Bc7 Qh3 Nc5 Qd4 Qb4 Bf1 Ng5 Qe4 Nh7 Kf3 Kg7 Qeg4 Nf6 Qe2 Qf7 d1N Qe6 Qd2 Q1e4+ Kf2 Ra1 Nb2 Ra5 Nd3 Kf7 Rh5 Kg8 Ndc1 Qa3 Rg5 Qb2 Bf3 Q4e5 Bd5 Qe4 Qgd1 Rh1 Rg3 Rg1 Re3 Rg5 Qh2 Rh5 Qg2 Rh7 Qdg4 Rf7 Ke2 Na6 Bc6 Re5 Q2h3 Nc5 Bd5
r7/pr1kqPKQ/4qRnR/2bBb2B/2NnB1N1/n2n1P2/2Q3B1/1b4n1 w - - 0 1 legal: proof: d4 f5 e4 g5 exf5 b5 h4 c5 hxg5 cxd4 a4 bxa4 b3 a3 Bb2 axb2 Kd2 d5 Kd3 h5 c4 e5 g4 h4 b4 h3 c5 h2 g6 Bg7 f6 Ba6+ b5 Nh6 c6 Ng8 c7 Nc6 c8B Qe7 g5 Rh7 Na3 b1N Nc4 Na3 Bb7 Kd7 f7 Bf6 b6 e4+ Ke2 e3 Kd3 e2 g7 e1B g6 Bb4 Nf3 Bc5 Qc2 Bb5 Bg2 Be5 Rab1 Qe6 Rbf1 Nge7 g8B Rg7 Bh7 Ba4 Ba6 Bb3 b7 Ba2 b8Q Bb1 Rhg1 h1Q Qg8 Qh2 Rh1 Qh4 Nh2 Qhf6 Ng4 Qg5 Ke2 d3+ Kf3 d2 Rh6 d4 Ke4 d3 Bb7 Nd4 Bd5 d1N Qh8 Rgg8 g7 d2 Bg6 Qh4 Qh7 Nb2 Bh5 Rgb8 g8B d1N f3 Ndb5 Rf6 Ng6 Rh1 Nd3 Rh3 Rb7 Rh2 Qa6 Kf5 Ndc3 Rh3 Qe1 Kg5 Qb6 Kh6 Ne2 Kg7 Qe6 Qa2 Bc3 Qc2 Qa6 Qh8 Ng1 Bh7 Nf8 B5g6 Qe7 Rh6 Qae6 Bh5 Be5 Bhe4 Nd4 Qh7 Ng6
1b3bR1/1RQb2r1/7q/8/1RpqNPK1/b3qP2/2rNk1nQ/1rBRB1n1 w - - 0 1 illegal: No possible last move
R1Qbrq2/1Qq2Q1B/1r2Nn2/2q4P/4R2N/Kp1q3Q/3P1nb1/1B1r2kn w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 h6 g4 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 a4 Kd7 h4 Kd6 a5 Ke5 f6 Ke4 g7 b5 f7 c5 d6 e5 d7 g4 a6 g3 a7 b3 h5 g2 Ra6 b4 Rg6 c4 Rh3 b2 Rh6 c3 Rh4 c2 Ne2 Kf3 Rh7 g1Q Na3 b1Q Rh2 c1Q Nc2 e4 Rh6 e3 Ra6 b3 Rh1 Nc6 Na3 Nb4 Nb5 Be7 f8Q Qcc7 Rh4 Rb8 a8Q+ Bb7 Qf7 Qd3 Nd6 Nf6 g8B Qf8 Bh7 Bd8 Nd4+ Kg3 Qb1 f3 Kd1 f2 Re4 Kh2 Ne6 Rg8 Qc2 e2+ Kc1 e1R+ Kb2 Rd1 Nf5 Bd5 Be2 f1N Qc3 Qgc5 Qb7 Ng3 Nh4 Kg1 Ra8 Nh1 Ka3 Rh8 Re3 Bg2 Re4 Qdc4 Qh3 Nd3+ Qb4 Ndf2 Bd3 Rb7 Bc2 Qd3 Bb1 Be7 d8Q Rg8 Qc8 Bd8 Kb2 Rb8 Qbb7 Rh8 Qa7 Rb4 Qab8 Qfd6 Qcb7 Re8 Q8c8 Qf8 Ka3 Rb6+
b6R/2B3K1/Q1n3B1/PBq2R1b/2B1r1kq/3b1nP1/2rrN1pr/Q2N2n1 w - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 Nh3 g5 Qd3 f5 Ng1 Be7 gxf5 g4 Qd2 g3 Qd3 g2 Qd1 Bh4+ Kd2 Bg3 hxg3 Ne7 Ke1 Ng8 Kf2 Ke7 Kf3 Kf6 Kg4 b5 Kh5 d5 e4 f3 a4 b3 c4 b2 a5 d3 c5 f2 c6 d4 c7 d2 Qg4 d1B Qf3 d3 Nd2 b1B Rh2 b4 Nb3 d2 Bd3 f1N Bc4 Ne7 Kh6 Qd5 Ra2 Bb7 c8B Nec6 Rb2 Ne5 Bd7 Nbc6 Bc8 Qc5 Qe2 Nf3 Bd7 Bd3 Na1 b3 Nc2 Rac8 Ne3 Ba8 Be8 Ke5 Kg7 h5 f6 h4 f7 h3 f8Q Rh6 Rh1 h2 Bg6 Rh8 Ra2 b2 Qe1 b1R Ne2 Rb3 Qd8 Rh6 Qb6 Rb4 Qa6 Ng1 Rb2 Ra4 Rb5 Rhh8 Nc3 Bg4 Ne2 d1R Ba3 Rd2 Nd1 Bh5 Bb2+ Kd6 e5+ Ke7 e6 Rh6 Bd5 Re4 Bc4 Kd6 Bc1 Ke5 e7 Rhh8 e8B Rc7+ Bgf7 Kf5 Ba3 Rc8 Bg6+ Kg4 Bb4 Ra2 Qc3 Nd2 Qa1 Ndf3 Bd2 Rh6 Bf4 Rd2 Bc7 Rb8 Rb1 Rbb2 Rc1 Rbc2 Rb1 Nd8 Beb5 Nc6 Rb2 Nh3 Rf1 h1Q Rb1 Nhg1 Rc1 Nfd4 Rf5 Qh4 Nf4 Qh1 Qb7 Nge2 Be6 Nf3 Nb2 Qh2 Rh1 Neg1 Qa6 Rh8 Be8 Bf7 Nd1 Bg6 Ne2 Qh5 Bec4 Qg5 Rh5 Rh6 Rf8 Qd8 Rhf5 Rh2 Rh8 Bh5 Bg6 Qh4
b2n1qR1/B2B4/kqQP2b1/4p2b/2r1N3/1r1r3n/1PR1N1QN/1NKq3r w - - 0 1 illegal: No possible last move, all moves rejected
2q1b2n/2QQ4/2N2k1p/B1PnnP2/1nRrBr1b/K4n1n/1bRN4/R3R3 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 g4 Kf7 Kd2 e5 f4 d5 c4 e4 Kc2 e3 Kb3 e2 g5 e1B b6 d3 c5 d2 g6+ Kf6 b7 d4 g7 d3 Ne2 h6 Nec3 h3 Ra5 h2 Bb2 Na6 b8Q Bd7 Ra1 Be7 Ra5 Be8 Bg2 Qc8 Qh5 d1N Nb5+ Nc3 Nd4 d2 Ne6 d1N Bf3 Nf2 Qd6 Ng4 Qh3 Ne5 Be4 Nd5 Ra1 Bc3 Re1 h1N Nd2 Nf2 Qc7 Rb8 Ka2 b3+ Ka3 Rb4 Nd8 Rd4 Nc6 Nab4 Bc1 b2 Qg4 Kf7 f6 Nh3 Qd1 Ke6 f7 Bh4 f8R Nge7 g8R N7g6 Rf5 Rh7 Rg7 Nh8 Rg4 Rf7 Rh5 Rg7 f5+ Kf6 Rg2 Rg4 Qa4 Bg3 Rh4 Rf4 Qaa7 Bf2 Qd7 Bg3 Qac7 Bf2 Nc4 Bg3 Rc2 Bf2 Rg4 Bh4 Bd2 b1N+ Kb3 Bb2 Bc3 Nd2+ Ka4 Na6 Ba5 Bc3 Ka3 Ndf3 Nd2 Nab4 Rgg1 Nfg5 Rac1 Ngf3 Rh1 Ba1 Rc4 Bc3 Rc2 Qa6 Ra1 Qc8 Rhe1 Bb2+
n1qBNb2/2r5/2kq4/8/b2Rp1bB/K1B2Q1r/1N1bPP1B/Qr2n1rR w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 b4 fxg4 b6 h5 b7 a5 Bh3 h4 Bg2 h3 b5 Nc6 b8N hxg2 Na6 Nb8 Nb4 axb4 h4 Kd7 d4 Kd6 Kd2 g5 Kc2 c5 Kb3 e5 b6 c4+ Kb2 g3 h5 e4 b7 b3 h6 g4 h7 Ne7 Qf1 Ra7 Ra5 c3+ Ka3 b2 Rh4 c2 Nh3 g1R Nd2 b1B Ra4 g2 Bb2 c1B Ng5 g3 Ne6 Na6 b8B+ Nc7 Ng7 Bc2 Rh1 Ng6 Qe1 Nh4 Nc4+ Ke7 Qd1 Bg4 Ne8 Na8 Qd3 Bd2 Bc3 Rb1 Qf3 g1Q Nb2 g2 Bh2 Rc7 d6+ Ke6 Rb4 Kd5 d7 Qc8 d8B Qd1 Bg5 Kc6 d5+ Kc5 d6 g1R d7 Ba4 d8B Ng2 Rd4 Ne1 Bh4 Bdh6 Rb4 Qd6 Rd4 Bg5 Ba5 Bd2 Bc3 Rg8 h8Q Rgg7 Qg8 Rh7 Qa2 Rh5 Qa1 Rh8 Bhe7 Rh3 Bh4 Kc6+
R4B2/bbr1R3/QK1QN2b/3pqq1N/qB5q/r1q1N2P/4P2k/N5rn w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Nc6 Kd2 Nce7 Ke1 Nf5 gxf5 Qe7 Bg4 hxg4 Kf2 Qf6 Ke1 Qd8 Kf2 Ke7 b4 Kd6 c4 Ke5 f6 g5 f7 d5 b6 a5 b5 a4 c5 g3+ Kf1 d3 b7 g2+ Kf2 d2 b8N a3 c6 g4 h3 a2 b6 Ne7 c7 Bh6 f8B Bb7 c8N Nf5 Bb4 Rh7 Bca3 Rc7 Qa4 d1Q Ne7 Ng3 Nf5 Qh4 Qa6 Qa4 Nd2 Ra7 Rb1 a1Q Ne3 Qc3 Nb3 Ke4 Na1 Qe5 Ke1 f2+ Kd2 f1Q Nf3 g1R Nd4 f3 Nd7 Kf4 Kd3 f2 Nf6 Qe1 Bf8 f1Q Bab4 Ra8 Rc1 Qf3 Rc6 Qff2 Re6 Qc1 Re7 Qb2 Rh2 Nh1 Rg2 Qf1 Rf2+ Kg3 Ne6 Qbc1 Rf3+ Kh2 Nh5 g3 Rf5 g2 Rf2 Bc8 b7 Qcb2 b8Q Bb7 Rf4 Qbc1 Rd4 Qff5+ Re4 Rf1 Qd8 g1B Qdd6 Bf2 Re8 Bg3 Rd8 Rg1 Rc8 Qef4 Kd4 Ra7 Ra8 Qca3 Qdc6 Q4e5+ Kc5 Qac3+ Kb6 Qa2 Qd3 Ra3 Qa6 Qac2 Qd7 Qa4 Qd6 Qef6 Qc6 Rh7 Nd4 Bb8 Re8 Rd7 Re7 Rc7 Qd6+ Q6e5 Ne6 Ba7+
1r2Rq1n/1nP2n1r/2q4N/1r2n2p/b6P/Q1KN1qQ1/4R1BB/1kNN3n w - - 0 1 legal: proof: e4 c5 b4 d5 f3 dxe4 a4 b5 axb5 cxb4 g3 exf3 Qe2 f5 Qd1 f2+ Ke2 f4 Nh3 e6 Ng1 Bd6 Kd3 f3 Ke3 Bf4+ gxf4 Kf8 Bd3 Kf7 Bf1 Ke8 c4 Kf7 h4 Kg6 d4 Kf5 Kd3 g5 b6 a5 c5 h5 b7 b3 c6 a4 d5 a3 c7 g4 d6 a2 d7 e5 Ne2 g3 Qc2 b2 Qc6 e4+ Kc2 e3 Rh2 g2 Qa4 g1Q Qd4 Nc6 b8N Qg2 Qd6 Ke4 f5 Nge7 f6 Rh7 f7 Ng6 f8Q Nh8 Qff6 Qf8 d8N Bd7 Nf4 e2 Qa3 e1N+ Kb3 Nd3 Na6 Rb8+ Nb7 Nd8 Qg5 Ba4+ Kc4 Ndf7 Ne2 Qh1 Bh3 f1Q Bf4 f2 Nb4 Qd1 Rg2 f1N Bh2 Ng3 Qg8 Ke3 Nbc3 Kd2 Nd6 b1R Nf5 Qc1 Rf2 Qf3 Bg2 Nh1 Nh6 Rb3 Rb1 a1N Qg3 Rb2 Kd4 Nb3+ Kc4 Qc2 Re1 Na5+ Kd4 Nb7 Nd1 Qcc6 Nc1+ Qe2 Rf4 Rb3 Re4 Qf3 Re8 Nde5 Nbd3 Kc2 Re2+ Kb1 N3f2 Qa6 Nfd3 Rb5 Kc3 Qac6+
2QbnnKB/1pb5/5n2/2Nq3P/1R1rP1nq/k4q2/1RB3RQ/b1N2qR1 w - - 0 1 illegal: No possible last move
nnk3N1/rrB1Q1Q1/1r1B4/1n1r4/RbbN4/1pR5/PBP3b1/1K1B1nb1 w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 exf5 a5 b4 axb4 d4 cxd4 h4 gxh4 g5 Ra3 g6 Ra8 f6 Qb6 f5 Qe6+ Kd2 Qd5 Ke1 Qf7 gxf7+ Kd8 Kd2 h5 Qf3 b5 Qg4 d5 Rh2 e5 Qg7 h3 Na3 h4 Bd3 e4 Nf3 b3 Qg5 b2 Qg2 b1R Qh1 e3+ Kd1 b4 Bf1 d3 Ne5 d4 Qf3 d2 Qb7 Ra7 Re2 h2 Re1 h1B Qe4 h3 Qf4 h2 Qh4 Rh7 Ng4 Bg2 Nh6 h1N Be2 Bc5 f8B Ba6 f7+ Kc8 f6 Ng3 Bd6 Ne7 f8B Nd5 f7 Nf1 Ng8 Bc4 Bc7 Nb6 Qe7 Na8 Nb5 Rb3 Bb2 Rh6 Bd3 Rb6 Rb1 Rbb7 Re2 Bb6 Rf2 Bc5 Rf3 Rb6 Ke2 d1N Ke1 Rbb7 Be2 d3 Nd4 Nc3 Bd1 e2 Re3 Nb5 Re4 Nh2 Kd2 e1B+ Kc1 Nf1 Ne6 Rba3 Bbe5 Nd7 Bfg7 R7a6 Rb3 d2+ Kb1 Be2 Bed6 Bg1 Bb2 Rab6 Rbe3 Bd3 Be2 b3 Rh3 Raa6 Ra4 Raa7 Rg3 Nb8 Bh5 Bg6 f8Q+ Be8 Qfg7 d1R+ Bc1 Rd3 Bd1 Bb4 Bb2 Bf7 Rf3 Rd2 Rc3 Rd4 Ng5 Bc4 Ne6 Rd5 Nd4 Rc6 Qgf6 Rca6 Qfg7 Rab6
R2n2QB/2R5/B4rnk/p1q1q1b1/N1KP1bQ1/br1p3q/BP6/3rNB2 w - - 0 1 legal: proof: c4 b5 h4 d5 a4 dxc4 axb5 g5 Rh2 gxh4 Rh1 e5 d4 e4 Qd3 exd3 e4 Bg7 f3 Bb7 e5 Be4 fxe4 Bf8 Kd2 f5 Kc3 Kf7 g4 Kg7 e6 a5 e7 c5 e8B h5 e5 h3 g5 f4 e6 h2 e7 h4 b6 f3 b7 f2 g6 h3 Ra3 Qd5 Be2 f1Q Be3 Ra6 Nd2 Qe5 Bb5 Nc6 b8Q Qff5 e8B Nd8 Qd6 Ne7 Qd7 Rf6 Ndf3 Rg8 Bf2 Kh6 g7 Ng6 Bf1 Rh8 g8Q Rh7 Qde6 Rb7 Ba6 Rb3+ Kd2 Be7 Bg3 Bf8 Bf7 c3+ Kd1 c4 Ne1 c2+ Kd2 Qc5 Ne2 Qfe5 Nc3 Bd6 Rg1 h1Q Na4 h2 Qg4 Qf3 Ra1 h1R Rc1 Be7 Bh4 Qh3 Rg3 Qb6 Bd5 Ba3 Rf3 Qc5 Rf2 Rfb6 Rf8 Re6 Bf6 Reb6 Bh8 Rf6 Rf7 Rg1 Ra7 Rh1 Ra1 Rg1 Ra8 c1B+ Kd1 Bf4 Rc1 c3 Be6 Bh2 Bf7 c2+ Kd2 Rb4 Bfc4 Bf4+ Kc3 Rb7 Rd1 c1B Rd2 Qce7 Ba2 Rb3+ Kc4 Bg5 Re2 Bcf4 Rd2 Rg2 Rc2 Rd2 Rc3 Rd1 Rc1 Qe2 Kd5 Q2e3 Rc7 Q3e5+ Kc4 Q7c5+
n3q3/1K1krN2/1n1Pp1b1/Q1q3BP/6qb/N4R1b/rR1p3N/1n1B1NQ1 w - - 0 1 legal: proof: e4 f5 a4 fxe4 g4 b5 axb5 h5 Ra3 hxg4 Ra5 Rh3 Ra1 Rh8 d4 c5 c4 d5 Bg5 cxd4 Bc1 d3 Bh6 d4 Bc1 Qd5 cxd5 Bf5 Be2 Be6 Bf1 Bc8 Kd2 g5 b4 a5 f4 g3 h4 g2 d6 a4 f5 a3 h5 a2 b6 g4 b5 g3 b7 Ra4 f6 Bh3 f7+ Kd7 b6 Rh7 Ne2 g1Q Rh2 g2 Ng3 Na6 b8Q Nf6 b7 Nd5 Na3 Nb6 Qa8 Nc7 Qa5 Nca8 Be2 e6 Bg4 Be7 Nf1 Bh4 Rb1 a1N Rb2 Nc2 Qe1 Qh1 Bd1 g1Q Rf2 Qg4 Rf3 Qhg1 Qe3 Qg8 Qf2 Q1g4 Qg1 Qe8 f8N+ Kd8 b8N Re7 Nb1 Ra2 Nbd7 Na3 Nh7 Kc8 Ne5 Kd8 Nf7+ Kd7 Rg3 e3+ Ke1 e2 Kd2 Nb5 Na3 Nc3 Nhg5 Nb1+ Ke1 d2+ Kf2 d3 Ke3 Nc3 Nf3 Nb1 N3h2 e1Q+ Be2 d1B Rf3 Qf5 Kd4 Bc2 Bg5 d2 Bd1 Qg4+ Kc5 Qf2+ Kb5 Bh7 Ka6 Bg6 Kb7 Qc5
8/3n1bqP/b1qkp1Qr/1nNr2N1/QBr4R/P3n2N/K1p5/1R1b2NB w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 d5 cxd5 axb4 Rh3 fxe4 Rh2 Ra5 Rh1 Ra8 g3 gxh4 Rh3 h5 Rh2 h3 Rh1 h2 Ba6 h4 Qb3 h3 Qd1 Bh6 Be2 Bg5 Bf1 Bh4 gxh4 Rh5 Qc2 Rh6 Qd1 Rh8 d4 Kd7 Kd2 c5 Kc2 b5 Kb3 c4+ Kb2 e3 f4 b3 h5 e2 d6 e1R d5 b4 f5 e6 a3 Nf6 h6 Re4 Qd3 Ba6 Nc3 Qe7 Nd1 Qg7 Bd2 Ng4+ f6 Ne3 Nf2 c3+ Kb1 b2 f7 Rf4 f8Q Rc4 Ka2 b1N Qg6 Ra7 Qff5 Rb7 Bg2 Rb5 Qc2 Ra5 Nf3 Rac5 Qa4+ Rb5 Rf1 h1B Ng1 h2 Nfh3 Rh7 Be4 Bf3 Re1 Bd1 Bh1 Rh8 Rf1 Rh7 Rf4 Rh8 Rh4 Rh7 Be4 h1Q Be1 Nd2 Rc1 Nf3 Rb1 Nd4 Bd2 Qh2 Bh1 b3+ Ka1 b2+ Ka2 Qg2 Be1 Kd8 d7 Ke7 d8N Nd7 Nb7 Qe4 Nc5 Kd6 Bd2 Ra5 Be1 Nb5 Bd2 Rh8 Be1 Rf8 h7 Rf6 Qf5 Rh6 Qg6 Ke5 d6 Qc6 Qgc2 Nf6 d7 Kd6 d8N Nd7 Qg2 Qh8 Qg6 Qg7 Rc1 b1B+ Ka1 Be4 Ka2 c2 Rb1 Bef3 Bd2 Bh5 Nf7+ Kc7 Nfg5 Kd6 Qf5 Bf7 Qg6 Nd4 Nd3 Re5 Nc5 Rd5 Bb4 Nb5
3b3q/nn5k/2nB3p/1Kb1nPbR/Q1r2NQ1/P3pBQ1/2Q5/N1r3rR w - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 Qa4 fxe4 Qd1 d5 cxd5 g5 h4 gxh4 d3 c5 Nd2 c4 Be2 c3 Bf1 Bg4 Nb1 Bd7 Nd2 Bb5 Nb1 Bc4 dxc4 Ra6 Bf4 Ra7 Bc1 Ra8 Ke2 Kf7 g4 Kg6 f4 e5 g5 b5 a3 b3 c5 h6 d6 h3 c6 b4 d7 c2 f5+ Kh7 c7 e3 Kd3 b2 Kc4 h2 c8Q b3 Bd3 e4 Qc7 e2 Be3 e1B Qe2 c1B Kb5 Bh4 Qg3 Ra4 Bb6 Rc4 Qgg2 Bc5 Qgf1 Ne7 Qg4 Nbc6 Qf2 Rg8 Bc7 Nc8 Nd2 b1N Ne2 b2 Nb3 Nd2 Bd6 b1R Nf4 Nf3 Be2 Nfe5 Bf3 B1e3 Qgg3 Rbc1 Qc2 Rg6 Rb1 Qh8 d8Q Bd2 Rb2 e3 Ra2 Ba5 Qe8 Bd8 Na1 Rg8 Rg1 h1N g6+ Kg7 Qg4 Ng3 Rh1 Ne4 Rb2 Bhf6 Rb1 Bg5 Rh5 Nd2 Qg3 Nb3 Qg4 Nba5 Qd7+ Kf6 g7 Nb7 Qe8 Rf8 g8Q Rg1 Qd5 Kg7 Qde4 Kh7 Qg3 Rg2 Rbh1 Rg1 Ng2 Rf7 Qeg4 Rd7 Nf4 Rc1 Bf8 Rdd1 Be7 Rg1 Bd6 Nd3 Qe4 Nde5 Qa4 Rcf1 Qb1 Rfc1 Qbc2 N8a7+
q2k1N1K/2bbNn1n/1N4Q1/Q3R3/B5B1/P3q2b/Pp2pRr1/rr1N3b w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 h5 a5 h6 d5 cxd5 a4 Qf3 gxh6 Qd1 a3 bxa3 h5 Bb2 h4 Bc3 Na6 Ba5 Nb8 Bb4 cxb4 Ke2 e5 Ke3 b5 d4 h5 f4 h3 g4 h4 g5 h2 f5 b3 d6 h3 g6 b2 d7+ Ke7 f6+ Ke6 d5+ Kd6 g7 Kc7 f7 b4 Bb5 b3 Qc2+ Nc6 Nf3 Rb8 Ba4 Bd6 f8N Nf6 g8B Nh7 Re1 h1R Nfd2 h2 Nc3 b1B Be6 Rg8 Nc4 Rg2 Nd1 Rhg1 Qd3 h1B Nb6 Qe8 d8N Bd7 Qa6 Bd3 Rb1 Bf1 Rb2 Rb7 Rf2 Rb8 Nf7 Nd8 Nh6 Nf7 Ng8 Kd8 Bg4 Bc7 d6 Rb7 Ne7 Rb8 Kd2 e3+ Kc3 e4 Kd4 e2 Qd3 e3 Qg6 Bb5 Kd5 Qc6+ Ke6 Qa8 Kf5 Be8 Qh5 Bd7+ Kg6 Rg3 Kg7 Bh3 Qg6 R3g2 Ref1 e1Q Rf5 b2 R1f2 Rc8 Re5 e2 Kg8 Qc3 Kg7 Qe3 Kg8 Bc6 d7 Bb5 Nc3 Ra1 Nd1 Bd6 Kg7 Rcc1 Kg8 Bc7 Kg7 Nd6 Kh8 Nf7+ Kg8 Rcb1 Nc4 Bb6 Kg7 Kc7 d8Q+ Kb7 Qd2 Kc7 Qa5 Kd8 Kg8 Bc7 Nb6 Bd7 Kg7 Nh6 Kh8 Nf7+
1qr5/5Bn1/1rNnNr1K/3Q1r2/N2B1Pq1/2RRP1p1/4Qp2/kb2bNn1 w - - 0 1 illegal: No possible last move
1bkr4/8/3Q4/rpn1PqN1/1RnBbp2/Pnn1R2Q/4Qb1Q/q1N1K2B w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 gxh5 d5 cxd5 c5 Qd3 cxd4 Qd2 Nf6 Qd1 Ng8 h4 Kd7 e4 b5 a3 f5 h6 g5 h5 f3 e5 d3 h7 b3 d6 f2+ Kd2 g4 h6 f4 Be2 f1N+ Ke1 b2 Qb3 d2+ Kf2 d1Q Qf3 Bb7 Nd2 b1N Nh3 Ne3 Ng5 Na6 Rh3 Kc8 Bb2 Qd7 Nb3 Nc3 Nc1 Be4 Rb1 Nc4 Rg3 Qd4+ Ke1 Ne7 Ba1 Rg8 h8Q Qf5 h7 Nc6 Rb4 N6a5 Rh3 g3 d7+ Kc7 Qg2 Nc5 Bf3 Nab3 Qe2 Ra5 Bh1 g2 Re3 g1B d8Q+ Kb7 Qd6 Kc8 Qg7 Be7 h8Q Rd8 Qhh2 Bf8 Qgh6 Be7 Qdg6 Bd6 Q6h3 Bb8 Qb6 Qd3 Qbh6 Qb1 Bb2 Qa1 Qd6 N3a4 Bd4 Nc3 Qef1 Ba7 Qfg2 Bb8 Qe2 Bf2+
5rnQ/k2K1Qq1/4p2Q/b2n1b1p/b1N1BRrQ/bP6/1P3N1R/4B1rq w - - 0 1 illegal: No possible last move
2n1Q2q/3R2bB/1nrP2N1/K3QB2/Q1b4Q/Rq3rP1/2n1pp1n/1qN4k w - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 h4 g5 b3 gxh4 Ba3 Qd7 Bc5 Qd8 Be3 d4 f4 exf4 c3 fxe3 cxd4 Bh3 d5 Bc8 d4 Kd7 d6 Ke6 g3 f5 d5+ Ke5 b4 h5 b6 c5 d7 a5 b5 e2 Kd2 f4 Kc3 h3 b7 c4 d6 h2 b6 a4 Kb4 c3 Bh3 a3 Bg2 c2 Nd2 c1Q Qb3 f3 Kb5 a2 Nh3 h4 Ng5 h3 Qd3 Ne7 Qe3 Ra3 Ne6 Qb2+ Nb3 Bg7 Nf4 Rh4 Rhf1 Qh8 d8Q Nd7 b8Q h1Q b7 h2 Qa8 Nb6 b8Q Be6 Bh3 Nec8 Qa4 Bc4+ Ka5 Qb1 Rc1 Qd1 Bf5 h1N Rc2 Nf2 Nc1 Rh7 Qh4 Ng4 Rc3 f2 Rd3 Ne7 Qe8 Nh2 Rc3 Rh5 Bh7 Qdb3 Ng6+ Ke6+ e5 Kd5 e6 Nec8 e7 Rf5 Qf6 Rf3 Qeg5+ Ke4 Qh4+ Rf4 Rc2 Kf3 Qe5 Kg2 Rb2 Rf3 Rc2 Bg8 Rc7 Kh1 Rd7 Bd5 Qg8 Rc3 e8B Rc6 Bf7 Bc4 Qge8 Q3b2 Be6 Rf3 Bh3 Qb3 Bf5 Qe4 Rb1 a1N Rb2 Qec2 Ra2 Qcb1 Ra3 Nc2
q2Q2n1/B1rK1kN1/b1nP1q1p/r3B3/1br4p/1Pr2n1N/3R4/2N2QNR w - - 0 1 legal: proof: c4 b5 f4 a5 a4 d5 axb5 e5 cxd5 exf4 h4 g5 e3 gxh4 Bd3 a4 Bg6 a3 Bd3 a2 Bf5 Nh6 Na3 Ng8 Bb1 axb1Q Ke2 c5 Kf3 f5 d4 c4 g4 c3 b6 c2 b7 h6 g5 Qa5 e4 Qb6 d6 Ra5 g6 Ra6 e5 Nf6 d7+ Ke7 d8Q+ Ke6 g7 Ra4 g8N Ra5 d5+ Kf7 b3 Rc5 Nc4 Qa7 Ra2 Qa8 Qf1 Ra5 Be3 c1R Ba7 Qb2 Ne7 Ng8 Ng6 Nc6 b8B Ba6 Bd6 Qd4 Nb2 Rc4 Nd3 Qb6 Bdb8 Bb4 Rd2 Qd4 Nc1 Qa1 Kf2 f3 Ke3 f2 Nf4 Qb2 Nfh3 f4+ Kd3 f3 Bc7 Rc3+ Ke4 Qa1 Kf5 Qb2 Qd3 f1N Qc4 Nh2 Qf1 f2 e6+ Kg7 e7 Nf3 e8N+ Kf7 Ng7 Rc4 Qe2 f1R Be5 Re1 Qd3 Re3 Qf1 Rec3 d6 Nf6 Qb6 Rc8 Qd8 Ng8 Qb6 Kf8 Ke6 Qa1 Kd7 Kf7 Qd8 Qb2 Rd5 Qf2 Rd2 Qd4 Bg3 Qf6 Be5 Rc7+
1R1N1NBn/1P6/1KN5/1q1r1bP1/2bQr1r1/Np1p4/k2qqqRn/B2Q4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 c5 d4 cxd4 h3 g5 h4 gxh4 a3 axb4 Bf4 b5 Bg5 b3 Bc1 b2 Be2 b4 Qd3 b3 Qd1 Bh6 Bf1 Bf4 Rh2 Bd6 Rh1 Bb4+ axb4 Ra3 Be3 Ra4 Bc1 Ra8 Kd2 e5 Kd3 Ke7 Kc4 Kd6 Kb5 h5 f4 d3 g4 d2 c4 h3 g5 h2 f6 e4 f7 e3 f8N h4 f5 h3 f6 e2 f7 e1Q Na3 b1R Qh5 d1Q Nh7 Qf2 f8Q+ Ne7 Nf6 Qde2 Be3 Rd1 Bc1 Nc6 Qg7 Re8 Nh7 Ng6 Nf3 Nh8 Rg1 h1B Ne5 h2 Nf8 Ra4 Bb2 Bd5 Rg2 h1Q Qg4 Qhh4 Nf7+ Ke7 Qc3 Ne5 Qcd4 Nf3 Kc5 Nh2 b5 Qa5 Nd8 Qad2 Kb6 Kd6 Ra2 Re4 c5+ Ke7 c6 Bc4 c7 d5 Ba1 Kd6 Rc2 Bf5 Rc3 Qh7 Re3 Qd7 Qf3 Rg4 Re8 Rb4 Ka7 Re4 b6 Qb5 b7 Qc6 Qb6 d4 c8N+ Kd5 Qh5 Qb5 Qf6 Kc5 Ne7 Rg4 Nec6 Qa4+ Na5 Rb6 Qe5+ Kb4 Qd5 Rg6 Qh4 Rg7 Kb6 Re7 Qf3 Re5 Qd3 Re1 Qc2 Rd5 Qd1 Qef3 Bd3 Re3 Be4 Q3e2 Bf3 d3 Be4 Bd7 Bh7 Be6 Bg8 Bf5 Qh3 Ree4+ Qe3 Qd7 Qd4 Ka4 Nb5 Kb4 Nac6+ Ka4 Nba7 Ka3 Nb5+ Ka2 Na3 Bh7 Nf7 Bf5 Rb8 Qe8 Nfd8 Qd7 Ne7 Qa4 Nec6 Qb5+
1b2N1K1/PQ3QBn/2p1bNQQ/q2nr2n/qb5r/1kpBR3/5nP1/7R w - - 0 1 legal: proof: c4 d5 f4 dxc4 e4 a5 b4 axb4 h4 g5 hxg5 Qd6 e5 Qh6 e6 Qh2 exf7+ Kxf7 f5 Ke8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 a4 e5 a5 h5 d3 b5 a6 c6 g6 b3 a7 Kb4 g7 h4 d4 h3 d5 b2 f6 Rh4+ Qg4 Bd6 f7 Nd7 Kf5 e4 Kg6 e3 f8Q e2 Kf7 e1B Ra3 Ndf6 Nf3 Qe5 Ng5 h2 Ne4 Nh5 Bh6 Ngf6 g8Q Nh7 Rg1 h1N Nbd2 b1Q Re3 Qd1 Q4g6 Nf2 Bd3 Qa4 Rh1 Ka3 Nf6 b4 Nde4 b3 Nd7 Qg5 Ndf6 Rb8 Ne8 b2 N4f6 b1N Nd7 Nc3 Ndf6 Kb3 Qh8 Rb5 Kg8 Be6+ Qf7 Bb8 d6 Nf8 Bg7 Qc5 Qhh6 Nh7 d7 Qb6 d8Q Qba5 Nd7 Re5 Ndf6 Nd5 Qd7 Bb4 Qb7 c3
3q4/6q1/Bb2N1PN/r2p2RK/2Q2Q2/2npqqRB/N1nPq1N1/3kb1n1 w - - 0 1 illegal: No possible last move, all moves rejected
6Nq/N2q4/Qp2P1rb/P4n2/1BbbKp2/b1R1Q2N/bN1n1R2/4B1nk w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 h5 Qb3 f5 Ng1 f3 Qd1 f4 Bh3 Ra6 Bg2 Rf6 Bh3 Rf5 gxf5 Ke7 Bg4 hxg4 Na3 Kf7 Nb1 Ke8 Kf2 Ke7 a4 Kf6 e4 Ke5 h4 c5 f6 g5 d6 b6 f7 c4 a5 b3 h5 c3 h6 c2 h7 b2 d7 Na6 Rh3 Bg7 f8B Nh6 Qe1 Rg8 h8Q Nc5 Na3 b1B Ra2 Nb3 Bb4 Ba6 Qe3 Bc4 d3 Nf5 Bcd2 c1B Be1 Qf6 d8N Nd2 Rb2 Bh6 Nc6+ Ke6 e5 Kd5 d4 Rg6 e6 Bba2 Qc8 Qh8 Rc2 Bb2 Na7 Bc1 Qb3 Ke4 d5 Bb2 Rh2 Bc1 Nh3 g3+ Kg1 f2+ Kg2 g4 d6 Bb2 d7 Bc1 d8N Bb2 N3b5 Ba3 Nc3+ Ke3 Nd1+ Ke2 Kh1 Kf1 Nf7 Bb2 Ng1 Ba3 Rh3 g2+ Kh2 Rg5 Rhc3 Rg6 Nh3 g1N Nb2 g3+ Kh1 g2+ Kh2 Bg7 Nh6 Bf8 Ng8 Bh6 Ng5 Ne2 Kh3 Kg1 Kg4 f1Q Qb7 Kh1 Qa6 Ne4 Rd2 g1B Rdc2 Bf2 Kf3 Qg1 Rd2 Bd4 Nh3 Qg5 Rdc2 Qd8 Rd2 Qd7 Rdc2 N4g3 Rd2 Nf1 Ke4 Ng1 Rf2 Qf6 Qc2 Qfg7 Qe2 Qh8 Qe3 Nd2+
qB1Qb1rb/2bK3p/1Q3NB1/6P1/n3P3/bqn1qR2/1p1bR2N/5NkN w - - 0 1 legal: proof: h4 b5 f4 d5 b4 g5 c4 a5 cxd5 axb4 f5 g4 f6 exf6 Ba3 f5 g3 Ra6 Bb2 Rg6 Ba3 f4 Bc1 Rg5 hxg5 fxg3 e4 Ke7 Ke2 Kd6 Ke3 Kc5 Kf4 Kd4 a4 f5 d3 c5 d6 b3 d7 b2 a5 c4 a6 c3 a7 c2 a8N g2 Qf3 g3 Ra4+ b4 Qe2 Na6 Ra5 b3 Nh3 g1B Rh2 g2 Nb6 Nf6 Nd2 b1Q Nf2 Rg8 Ra3 Nc5 Nd5 Na4 Nh1 b2 Qg4 Qa2 Be2 Qb3 Nf1 Bf2 Qg3 g1B Bh5 Ba6 Bf7 Qa8 d8N Bc4 Bg6 Be7 Bd2 c1B Nf7 Be1 Re2 Bh2 Nh6 Bd6+ Kf3 f4 Ng4 Bc5 Ba5 Bc3 Bc7 B1d2 Bb8 Be7 Qg2 Bg3 Ngh2 Beb4 Nc7 Bf7 Ne8 Nd5 Kg4 f3 Kf5 f2 Nf6 Bc7 Qg1 Bc5 Ne3 f1Q+ Qf2 Be8 Ke6 Bf7+ Kd7 Qe1 Qg1 Qf2 Nef1 Qe3 Qf2 Ke5 Qg1 Kf4 d4 B5d6 Ra1 Ba3 Rc1 Nb4 d5 Na2 d6 Be5 Rc5 Bd4 Re5 N2c3 Re8 Be5 Rf8 Bd4 Kc8 Be5 d7 Bd4 d8Q Bde5 Nhg4 Kf3 Kd7 Bd4 Nh5 Bh8 Nhf6 Qf4 Qb6 Qe3 Nhf2 Kg2 Nh1+ Kg1 Ngh2 Bc4 Nfg4 Bd5 Rf3 Bf7 Nf6 Be8+
6rN/p1bRP2q/2K1r3/Q1B2nq1/3q2pq/2R1P3/QB2Qnqk/nQN5 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 e3 hxg4 Be2 b5 axb5 e5 Bd3 e4 f3 exd3 Kf2 Bb7 Ke1 Be4 fxe4 Qc8 Ra6 Qc7 Ra1 Qd8 Kf2 Ke7 h4 Ke6 b4 Ke5 c4 f5 b6 d5 h5 g5 h6 f4 b5 g3+ Kf3 d2 h7 g2 c5 d3 c6 d4 b7 Na6 b8B+ Bd6 c7 Nh6 c8Q Nf5 b6 Bc7 b7 Re8 Na3 Nb4 Nb5 Nc2 Ne2 g1Q Ra3 Na1 h8Q+ Qf6 Qe1 d1Q Qd8 d2 Bb2 Qb1 Rh7 d1Q Rc3 d3 Nd6 d2 Rd7 Qa4 Qd1 Qd4 Nc1 Rg8 Qc2 d1N Qe2 Nf2 Qh2 Qh6 Qg2 Qh4 Qh2 Re8 Qg2 Re7 Nf7+ Kf6 e5+ Kg6 e6 Kh5 Nh8 Re8 Qd3 Re7 Ke2 f3+ Kd2 Re8 Qh2 Kg4 Qg2+ Bg3 Bd6 Rg8 Qa5 Rae8 Bf8 Re7 Qh2 Bc7 b8Q Qg2 Qb3 Qgg3 Qg1 Kh3 Qba2 g4 Qf1+ Kh2 Qe2 Re8 Bc5 Qgf4 Qa6 Qfg5 Q6a5 Rb8 e7 Rb6 Rc2 Re6 Rc3 Re4 Nb3 Qh1 Nc1 Qdg7 Qdb1 Qgh7 Rc4 Qd1+ Kc3 Qd6 Kb4 Qd4 Qed3 Nh3 Kb5 f2 Rc3 f1Q Kc6 Qg2 Qda6 Nf2 Qe2 Re6+
3qR3/3N3Q/2rbQn1Q/7q/Kp3RPP/N1rn1r1k/p4qn1/r3Q1BB w - - 0 1 legal: proof: b4 b5 e4 d5 a3 dxe4 a4 h5 axb5 c5 Ra4 cxb4 Ra5 Ba6 Ra1 Bc8 g4 hxg4 f3 g3 Ba3 g2 Bb2 Na6 Bc1 Nb8 Nc3 g5 Nb1 g4 Ke2 g3 Ke1 Bg4 fxg4 Qd7 Na3 Qc7 Nb1 Qd8 d4 e5 Kd2 Ke7 c4 Kf6 Kc2 a5 Kb3 e3 b6 Kg5 c5 Kh4 h3 f5 d5 a4+ Ka2 e2 b7 e1R d6 f4 d7 e4 c6 a3 Kb3 a2 c7 f3 c8Q e3 Bc4 e2 Bf4 f2 Qd3 f1R Bd5 Qe8 Be3 Na6 b8Q Rh6 Qb6 Qh5 d8Q+ Rff6 Qcf5 Rc8 Qe8 Rc3+ Ka4 Rd1 Bc5 e1N Na3 Rf7 Qd2 Rdc1 Qb7 Rc6 Qh6 Rb1 Qf2 Rf4 Qec8 Nf6 Qbh7 Rd1 Rb1 Be7 Rb2 Ra1 Re2 Bf8 Re8 Rf5 Ne2 g1Q Nd4 Qh2 Qg1 g2 Nb3 Qc7 Qe6 Bd6 Be3 Qd8 Nc5 Kg3 h4 Rf1 Nd7 Nc5+ Kb5 Ncd3 Ka4 Rf4 Qf1 g1Q Ba7 Nc2 Qfe1+ Rf2 Rh2 Ne3 Bh1 Qf1 Rg2+ Kh3 Rg1 Qe2 Rf1 Ng2 Bd4 Rf4 Bg1 Rf5 Rf4 Qb2 Rc4 Rf3 Rf4 Qf2
1k3B2/7q/2r1Nq2/2R1RnPR/rp3R2/nP1Q3p/qn2BK2/QnbN2r1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 h4 gxh4 f5 a4 f6 a3 Rh3 exf6 Rh2 f5 Rh1 Bd7 Nh3 Ba4 Ng1 Bb3 axb3 axb2 Rh2 f4 Rh3 Bb4 Rh1 Bf8 e4 Kd7 d4 Kc8 g4 f5 e5 c5 g5 h5 e6 b5 d6 h3 d5 f3 e7 h4 e8Q c4 Ra6 f4 Nc3 b1N Qg6 f2+ Ke2 f3+ Ke3 h2 Qd2 Qf6 Qe4 Ne7 Qec2 Nf5+ Kf4 Rh6 Qb2 Nd7 Nge2 Kb8 Ra5 Ne5 d7 Ba3 Nd1 c3 d6 c2 Qa1 Nc4 Qd3 b4 Rc5 Ra5 Be3 c1N Nd4 Ra4 Be2 f1Q Ne6 f2 Kf3 Bb2 Re5 Nca3 Bc5 Qe1 Kg2 Qd2 Rf1 h1R Kf3 h3 d8R+ Kb7 d7 Rg1 Rg8 Qg7 d8R Qh7 Rh8 Rf6 Nf4 Rc6 Rdd5 Qc2 Bf8 Kb8 Ne6 Qd2 Qe4 Nd3 Rc5 Bc1 Qe3 Nb2 Qd3 Qc7 Rh5 Qh7 Re1 Nbc4 Re4 Qa2 Rf4 Nb2 Bf1 Raa6 Ree5 Ra4 Be2 f1Q+ Nf2 Qe1 Nd1 Qc3 Kf2 Qd4+ Qe3 Qd8 Qd3 Qf6
5r2/1N1KnNr1/1B1q1pRn/2P3qQ/r2b1p2/B2nR3/qP5B/Q1B1nk2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 g5 h5 g6 f6 Qd3 Ke7 Qd1 Bb7 Bh3 Bd5 Bg4 Bf7 gxf7 hxg4 Kd2 Ke6 Kd3 Ke5 Kc4 Ke4 h4 g5 h5 a5 b6 d5+ Kb5 d3 c4 a4 b7 d4 h6 a3 h7 g3 Nd2+ Ke3 Rh3 Kf2 e4 a2 e5 g4 e6 g2 e7 g3 e8Q Bc5 f8B Qd5 Ngf3 g1Q Ne5 g2 Re3 Nc6 b8B Ra4 Nb3 d2 Nf7 d3 Na5 Nce7 Bc7 Nh6 Bb6 Qd6 Rb1 a1N Nb7 Bd4 Qa8 Nc2 Qh5 Rg8 h8B d1Q Bhg7 d2 Ra1 Qg4 Raa3 d1N Rg3 Qf3 Rg6 Kf1 Re3 Nf2 Qa6 Nc8 Be7 Nd3 Bgf8 Nce1 Qa8 Qb8 Ba3 Qd5+ Bfc5 Rf8 Qa5 Qg5 Kc6 Ne7+ Kd7 Qf2 Qa6 g1R Qa8 Be5 Bd4 Qc2 c5 Qb1 Re4 Rg3 Bg1 Bd4 Bh2 Qa2 Re3 Qb1 Bb4 Ra2 Nbd6 Qe5 Rg7 Rg6 Nb7 Qg5 Rh7 Rgg8 Rg7 Ra1 Rg6 Rg7 Qa4 Ra3 Qc2 Ra4 Ba3 Qa1 Qb1 Qa2 Qa1 Qd6+
r1R3N1/bPP2rq1/2rR1rpQ/3RrpQK/3rB2B/4b1R1/2Nn4/1k3b2 w - - 0 1 illegal: No possible last move, all moves rejected
1qQ1rK1Q/1b1R1BnN/N2R2P1/5rp1/r1r2P1p/RR3r2/1b6/2B2bkb w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra2 fxe4 Ra4 Qb6 Ra1 Qd8 h4 g5 h5 Nc6 Ra4 Ne5 Ra6 Bh6 Ra1 Bf8 g4 Qc7 Rh3 Ng6 hxg6 Qg3 Rh5 Qxg4 Rh1 Qg2 Kd2 d5 b4 Kd7 c4 Ke6 c5 Ke5 b6 Kf4 c6 h5 c7 a5 b7 e5 b8Q d3 Kc3+ d2 f3 Ke3 b5 Kf2 f4 e3 b6 a4 b7 a3 Rh3 d4+ Kc4 h4 Qa7 a2 b8R e2 Rbb3 e1R Ba3 e4 Kd5 e3+ Nf3 e2 Be7 Bb7+ Kd6 Nf6 c8R Nh5 Rc2 Ng7 Na3 Re8 Qa8 d3 Qc1 d1B Nb5 d2 Ne5 Kg1 Ng4 Qg3 Rab1 a1R Rc6 Ra4 Nf6 Rc4 Ra3 Qb3 Nc7 Ra4 Bg2 Rf1 Bd5 e1R Bf7 Re5 Rd3 Be2 Nh7 d1B Na6 Rf3 Kd7 Qb6 Rbb3 Bf1 Rcd6 Rf5 Qcc8 Bc2 Rd2 Bce4 Bf6 Be7 Bb2 Bf6 Bc1 Bb2 R2d4 Bed5 Qab8 Re4 Rdd3 Rec4 Ke7 Qa7 Rd7 Rd8 Qe5 Qb8 Rd1 Ne8 Qh8 Ng7 Rd2 Rh3 Rd1 Bh1 R1d6 Rf3 Rc7 Rd7+ Kf8 Re7 Rcd7 Re8+
Q3Rr2/3b1r1P/1N1pP2p/2N3NR/Q5K1/4bb1n/Nr3B1b/b2qB1rk w - - 0 1 illegal: No possible last move, all moves rejected
2nBR1n1/b5P1/2QKbP1k/bp2p1q1/1R1R2qn/3b1n1R/B5N1/1r2N1Q1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 f5 cxd5 fxe4 Na3 axb4 a5 b5 Nb1 Ra6 Na3 Be6 Nb1 Rb6 axb6 Bc8 Ke2 Kf7 Ke3 Kg7 Kf4 c5 Ke5 h5 d4 h3 f4 b3 g4 h4 b7 c4 d6 e3 g5 h2 d5 c3 f5 c2 d7 h3 g6 b2 d6 e2 Qd5 e1N Na3 b1B Bg5 c1B Nf3 Bd2 Bc4 Ba5 Qc6 Bd3 Nh4 Nf3+ Ke6 Rh6 Ba2 Rh8 Rhb1 h1Q Nc2 h2 Ne1 Qg2 Rb4 Qg4 Nhg2 h1N Bh4 Kh6 g7 Ng3 Bf6 Na6 b8Q Nc5+ Kd5 e5 Qbb6 Na4 Qg1 Qe7 d8R Nb6+ Kc5 Bd7 Re8 Be6 Rc1 Qd8 Rc3 Nc8 Be7 Rh7 f6 Nf5 d7 N5h4 Ra3 Qc7 d8R Qd7 Qa8 Qg5 Rc3 Qd4+ Kc6 Qdf4 Rdd4 Qfg4 Bd8 Bc5 Qb7 Ba7 Ra3 Nb6 Kd6 Rh8 Qd5 Nc8+ Kc6 Kg6 Rab3 Be4 Nd3 Nd2 Qb1 Nf5 Qf1 Rh1 Qf2 Rf1 Qg1 Rb1 Nde1 Nh4 Rh3 Bd3 Qd6 Ndf3 Qd7 Nce7+ Kd6 Kh6 Qc6 Nc8+
5N2/2RBp1rR/PQ4Q1/2b1P1K1/qq1BN3/1kb2B1q/6Bp/rq1r1b1q w - - 0 1 legal: proof: f4 a5 g4 f5 b4 fxg4 d4 axb4 d5 d6 f5 Kd7 f6 c6 f7 cxd5 Qd2 d4 Qd3 Kc7 Qd1 Kd7 h3 Kc6 Rh2 g5 Rh1 g3 fxg8Q Nd7 Qf7 Kc5 Qe8 Nf6 h4 g4 Bf4 Ne4 Bc1 Ng5 hxg5 Ra7 Rh6 Ra5 Rh1 Ra8 Kd2 Kc4 a4 b5 e4+ d3 Ke3 h5 Kf4 g2 g6 h4 g7 d5 g8B b3 c3 h3 a5 b4 Qh5 b2 Qg6 h2 Nh3 g1Q Qb6 g3 Bg2 b3 Qg4 d2 Ng5 d1R Ra3 Ba6 Be3 Bg7 Bd4 Rh7 Ne6 Qc8 Nf8 Bh8 Qge6 Rg7 Qg6 Qh3 Kg5 Ra7 Bf3 g2 Be6 Qe1 Bd7 g1B Bg2 Bf2 Rf1 Bg1 Rf7 Bf2 Bg4 Qh1 B4f3 Bg1 Bf2 d4 Nd2+ Kd3 c4 Kc3 c5 b1Q c6 d3 Ra4 b2 c7 Bb5 c8B Ra6 Nb3 d2 Bd7 Bf1 Nc5 Kc2 Bd4 Bf2 Nb7 Ra8 Nd6 Bg1 Nb5 Kb3 Rc4 Bf2 Rc7 Ra6 Bc3 Bc5 Bf6 Qa2 Bd4 Qa4 Nc3+ Qb4 Qa7 b1Q Qb6 Rg8 Rh7 Be5 Bf2 Rg7 Be3 Bed4 e5 Ra8 Ne4 Bc3 Ne6 Rc1 Bd4 d1Q Nf8 Qdc2 Bf2 Qca2 Bd4 Qa4 a6 Rd8 Bc8 Rd6 Bd7 Rd1 Bg1 R6d2 Bf2 Ra2 Bd4 Ra1
1R1b4/b1nq1P1N/pKN4n/6QP/kn2RqB1/b2p1Q2/1B1q3Q/nQ3b2 w - - 0 1 illegal: No possible last move
q6r/3N4/q1b1rn2/2Q1n3/PKN2BpN/RBq2pPp/1n1R1Q2/bk3N2 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 d5 Nc3 g5 Nb1 g4 cxd5 Qg5 hxg5 c5 Be3 cxd4 Bd2 Ra3 Bc1 Ra8 Kd2 Kd7 a4 Kd6 e4 Ke5 g3 f5 d6 b5 d7 h5 d8Q h4 g6 h3 g7 b3 Qg5 d3 Kc3 f3 Qh4 f4 Qe1 b2 Qd8 b4+ Kc4 f2 Qb6 f3 Qa6 d2 Ne2 d1N Qa7 b3 Rh2 Bd7 Nd2 b1Q Nd4 b2 Ra3 Bc6 Nf5 Nf6 g8N Bg7 Nh4 Qc2+ Kb4 Nbd7 Bc4 b1Q+ Bb3 f1Q Qef2 Qa6 Nf1 Nb2 Qae3 Qcd3 Qc5+ Qd5 Bd2 Qc1 Be3 Re8 Bf4+ Ke6 e5 Qc2 Ng6 Kf5 e6 Ke4 e7 Kd3 Nh4 Ne5 Rg2 Qd8 Rh2 Qda8 Rg2 Rd8 e8N Rd6 Rh2 Re6 Nd6 Qc1 Nc4 Qc2 Ne7 Qc1 Neg6 Qe3 Nf8 Qe1+ Nfd2 Qe3 Nd7 Qe1 Ba2+ Kc2 Bb3+ Kc1 Rg2 Qe3 Nf1 Kb1 Qg1 Qc1 Rd2 Qc2 Qcf2 Qc3+ Kc5 Ng6 Nh2+ Qc1 Qgg2 Ne4+ Kb4 Nd1 Nf1 Ba1 Qfg1 Ne5 Qc5 Nf6 Qh2 Nb2 Qhf2 Qc3+
K7/1rPk2r1/n1prR2Q/Nn3p2/p3BBN1/PRb1q2b/3qQ1N1/n2N4 w - - 0 1 legal: proof: c4 e6 c5 Ke7 c6 Ke8 b4 Qh4 b5 Qd8 b6 dxc6 bxc7 Ke7 Qa4 Kd7 Qd1 Ke8 h4 f5 f4 g5 e4 gxh4 exf5 Qd3 f6 Qd8 f5 exf5 Ke2 h5 Ke3 b5 d4 a5 g4 h3 g5 b4 f7+ Kd7 a3 b3 g6 h4 g7 b2 d5 a4 Kd4 h2 d6 h3 Kc5 Rh6 Kb6 Ne7 g8N Ba6 Nf3 Ra7 Nc3 b1N Nh4 Nd2 Bd3 Bg7 f8Q Nb3 Re1 h1Q Be4 h2 Ng2 Bf1 Qe2 Na6 Nd1 Bc3 Rb1 Na1 Rb3 Qg1+ Be3 Re6 Nh6 h1R Ng4 Rh7 Qf6 Rg7 Qh6 Ra8 Kb7 Nc8 Bf4 Na7 N4e3 Nb5 Ng4 Ke8 d7+ Ke7 Qd3 Rd6 Re3 Qf2 Qe2 Qe8 d8N Kd7 Bc2 Qe1 Re6 Qd2 Be4 Rc8 Nh4 Bh3 Ng2 Nd4 Ka7 Rb8 Nb7 Qe7 Na5 Rb7+ Ka8 Nb5 Rf6 Qe5 Rg6 Qc5 Re6 Qce3
b1nR2B1/P3nQ1B/rq1pR3/B2k1B1r/1Pqb3p/2Q3q1/K3N1p1/1Nb5 w - - 0 1 legal: proof: Nf3 b5 Ng1 b4 c3 a5 cxb4 a4 b3 axb3 d4 f5 g4 fxg4 h3 e5 dxe5 gxh3 Kd2 Ke7 Kc3 Ke6 Kb2 g5 f4 h5 a4 c5 e4 g4 f5+ Kf7 f6 Ke6 f7 h2 a5 g3 a6 c4 a7 g2 Ra6+ Qb6 Bf4 h4 Qd3 Ne7 Ne2 Bg7 f8Q Bb7 Qc3 Rh5 Ka3 b2 Ka2 Bd5 Bg5 Nc8 Bd8 Nc6 Bc7 Qb7 Ba5 Qb6 Rg1 h1Q Qg8+ Ke7 e6 Kd6 e7 Bd4 e8B Rb8 Qf7 N6e7 e5+ Kc6 e6 Qh2 Rh1 Kd6 Rg1 Ba8 Rh1 Qf4 Rh3 Kd5 Rd3 Qg3 Rd2 Qbd6 Rc6 Rb6 Rd1 Ra6 Rb6 Ng8 e7+ Ke5 Rd3 Qh6 Re6+ Kd5 Qf8 Qhf4 Bf7 Qfe3 e8B Nge7 Bg8 d6 Bd7 Qe4 Re3 Qd3 Qf7 Qe4 Qe1 c3 Rf3 c2 Qc3 c1B Rff6 Bd2 Rh6 Qed3 Rh8 Bc1 Bh7 Qb5 Rd8 Qc5 Ba4 Qc7 Bac2 Qb6 Bcf5 Ng8 Qe1 Bg1 Qg6 Qe5 Nd2 Be3 Ng1 Kc6 Ree8 Qd5+ Bc4 Bd4 Re3 Qf3 Ne2 Nge7 Bcg8 Qg3 Re6 Kd5 Qg7 Be3 Qf7 Bd4 Nf1 Bce3 Nd2 b1Q+ Ka3 Qd1 Nb1 Qd3+ Ka2 Bc1 Qc3 Qc4+
1B4Q1/1R3N1B/kNP2B2/b1r1b3/1p1qPQb1/1rpn1K2/1n2Rp2/bB1n4 w - - 0 1 legal: proof: c4 c5 b4 e5 d4 h5 f4 exf4 g4 a6 b5 axb5 gxh5 Qb6 Na3 bxc4 Nb1 c3 Qd2 c4 Qd1 Qc5 dxc5 Ra3 Bh3 Ra6 Bf1 Ra8 Kf2 Kd8 a4 Kc7 e4 b5 h4 Kb7 c6+ Ka6 a5 g5 h6 f5 h7 d5 h5 c2 h6 f3 Rh5 d4 Na3 d3 Ne2 c3 Rb1 g4 Nd4 b4 Qd2 f4 Rf5 g3+ Kg1 g2 Kf2 Nd7 Rg5 Bg7 Rb2 Nb6 Ndb5 Be5 Nd6 Ne7 Nf7 Nc4 Rg7 Bg4 Be2 Rhg8 h8B Nd5 h7 Rgb8 Ra2 Nb2 Nc4 Rb5 Nb6 Rc5 Qe3 Ra7 Bd2 c1B Be1 Kb5 a6 Ra8 Bd1 d2 Bc2 d1Q a7 Qd4 Bb1 g1B+ Kf1 f2 Kg2 f1N Bg3 Bh2 Kf2 f3 Bf4 Nc4 Re2 Bb2 Bg3 Ba1 Bf4 Rd8 a8B Nb2 Bb7 Ra8 Bc8 Ra3 Bf5 Rb3 Bg6 Ka6 Bf5 Bf6 Bb8 Bc7 Bg6 Bfe5 Bf5 Qd3 Qf4 Nfe3 Kg3 f2 Bg6 Bh3 Kf3 Qd4 Na4 Nf6 Nd6 Ba5 Rb7 Nd7 Nb6 Rd5 Bf6 Nc5 h8Q Ned1 Bh7 Ncd3 Qg8 Rc5 Nf7 Bg4+
4R1R1/pK3RRr/2NrQP2/1Qb1N2p/1P1b1Bb1/2k1p2B/2n5/2nb1qr1 w - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 f5 h4 g5 e4 gxh4 b3 fxe4 Ne2 c5 Ng1 c4 Be2 cxb3 Ba6 Bb7 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 h3 f4 e6 g5 b2 g6 e3 f5 h2 g7 e2 Qa4 e1B Ne2 Rh7 Qb5 Nf6 g8R Bd7 Rhg1 h1R R1g7 Na6 Bh3 Ng4 Na3 b1B f6 Ne3 Rf7 Nc5 Nc4+ Kc7 d3 Bf2 Ne5 Kd6 Bd2 Ba2 Rag1 Bb3 R1g7 Bd1 Bc1 Nb3+ Ke4 Rb8 d4 Nc2 Bf4 Be7 Re8 Rb6 Reg8 Kc7 d6+ Kb7 d5 Bd4 Re8 Rg1 Reg8 Bc8 d7 Bec5 d6 Nc1 Re8 Qe7 d8R Qc7 d7 Qb8 Ng6 e5 Kd5 e4 Ne5 e3 Reg8 Kc7 Rde8 Kb7 d8Q+ Bd7 Qc6+ Ka6 Qe7 Bg4 Qee6 Qc8 Qb7+ Kb5 Qb8 Qa6 Qb7 Ba1 Nd4+ Ka4 Ndc6 Kb3 Qb8 Qf1 Qb7 Kc3 Qa6 Bb2 Qb5 Bd4 Kd6 Bc5+ Kc7 Ra6 Kb7 Ba1 Nd4 Rd6 Ndc6 Kd2 Rg5 Bad4 R5g7 Kc3
1B1rqb2/1R2BPq1/2KBk3/Qrpr2Qp/2N4R/qN6/PBp4n/n3n3 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b3 a5 b4 axb4 c4 d5 Qa4+ b5 Bb2 Ba6 Qd1 b3 Bc1 b4 Bd3 Bb5 cxb5 Ra4 Be2 Ra8 Bc4 dxc4 Ke2 Kf7 Kf3 c5 Ke4 h5 g4 e5 d4 b2 f4 c3 d5 c2 d6 h3 Kd5 e4 b6 h2 g5 e3 d7 e2 g6+ Ke7 g7 e1N b7 b3 f6+ Kf7 f5 Ra7 Nd2 b1R Ne2 b2 Nd4 Qe8 d8B Nc6 b8B Nh6 Be7 Ng4 Nc4 Na5 Qd2 Nb3 Qa5 Rd7+ Kc6 Rg8 Bd2 Rd1 Rb1 Na1 Bc1 Rd3 Nb3 R3d5 Rf1 h1Q Rf4 Nh2 Rh4 Rh8 Bed6 Rh7 Be7 Qf3 Bed6 Qd8 Be7 Rb7 Bed6 Rb5 g8Q+ Ke8 Qg5 Rd7 Bg3 Qe7 Bgd6 Qg7 Be7 Kf7 Bed6 Qe3 Be7 Kg8 Bed6 Qe8 f7+ Kh8 f6 Kh7 Qgd2 Kg6 Be7 Kf5 Qg5+ Ke6 Bed6 Be7 f8B Qgg6 Bg7 Bf8 f7 Qh6 Bf6 Qg7 Bde7 Re5 Bf4 Red5 Rd1 b1Q Bfd6 Qb2 Rb1 Qc3 Bd4 Qb4 Bb2 Qa3 Bd4 Qh6 Nbd2 Rb4 Rb3 Qg7 Bb2 Ra4 Rb7 Rb4 Nb3 Rb5 Qg1 Qh8 Qg2 Qg7 Qg5 Rd8+
4Q2R/qp1r2Pn/nN1rq3/RR1n4/1b2N2p/2q3p1/1K4PR/1QBr2kB w - - 0 1 illegal: Other
2BRr1rn/p3P2k/q4P1n/Q4R2/1rQ4b/1p2q1NK/n2pR3/qN2BR2 w - - 0 1 legal: proof: b4 b5 g4 f5 a4 bxa4 b5 h5 gxh5 c6 Ra2 cxb5 Ra1 b4 e4 fxe4 d3 e3 Ke2 Rh7 Ke1 e2 Kd2 Rh8 Ke3 e5 Kf3 e4+ Kg3 e3 Kg2 Bb7+ Kh3 Be4 dxe4 Bd6 Kg2 Bf8 f4 Kf7 c4 e1R h4 d5 e5 g5 e6+ Kg7 c5 e2 f5 a3 c6 b3 h6+ Kh7 c7 d4 c8R d3 h5 a2 Rc5 g4 Qc2 g3 Bd2 Qf6 Kh3 g2 Qc4 Na6 Rh2 Re8 e7 Bg7 Ra5 Nb4 Re5 Rc1 Be1 d2 Rd5 Qa6 Rc5 Nf6 Ra5 Ng4 f6 Rhg8 Rf5 Bf8 Bf2 e1Q Ne2 Bg7 Ng3 Qe3 Be1 Rc3 Be2 Rd3 Bf3 Rd4 Bb7 Rf4 Bc8 g1N+ Kh4 Re4 Re2 Nf3+ Kh3 Ng5+ Kh4 Qf2 Ra5 Qc5 Qd4 Nf3+ Kh3 Kh8 Bf2 Rgf8 Rb5 Rd8 Nc3 Nh4 Rf1 a1Q Nb1 Ng6 Be1 Rde8 Qc3 Na2 Qa5 Qe3 Rg5 Kg8 h7+ Kf7 h8Q Rg8 Re5 Rb4 Qh6 Bf8 Qf4 Bh6 Rd5 Bg5 Qc4 Qc6 Rd8+ Qce6 h6 Bh4 Qcb5 Qa6 h7 Ra4 h8R Rb4 Rh6 Nh8 Rh5 Kg6 Qc4 Nh6 Rhf5 Kh7
1N2Rr1r/Q2Q4/3pQrk1/1p2p1N1/PB1q1r2/r1PK1B1b/5b2/2QRb2n w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 f6 axb4 g4 h5 f3 hxg4 f4 e5 f5 Na6 Bd3 Nc5 Bf1 Ne6 fxe6 Qb6 Nh3 Qc7 Ng1 Qd8 Kd2 b5 a4 g5 h4 b3 e7 Kf7 h5 d3 h6 b2 h7 g3 Bh3 g2 Nf3 g1B Bg4 Kg6 f7 Nf6 e8Q Bb4+ Nc3 b1R Ba3 Nh5 Nd4 Rb3 Qc1 Ng3 Bf3 g4 Nc6 Bf2 Nb8 d6 Rh4 Nh1 Qd7 g3 f8Q g2 Qfe7 g1R Qee6+ Qf6 Rb1 Rg4 Rh3 Rf8 h8Q Rf4 Rh2 Ba5 Bb4 Ra3 Qhh3 Rh8 Ne4 Rf8 Qee7 Qh4 Qhe6+ R4f6 Ng5 Qd4 Qa7 Rh8 Qe7d7 Rf8 Kd1 d2 Ke2 d1R Rh8 Rg1 Ra1 Rg4 Rb1 Rf4 c3 Be1 Qb2 Bb6 Rd1 Qd5 Qc1 Bbf2 Rh7 Qd4 Re7 Bb7 Re8 Bd5 Bg4 Bg2 Bf3 Bh3 Na6 Qc5 Kd3 Rc8 Nb8 Rh8 Re7 Rcf8 Re8 Qd4+
5nN1/p1np3b/3R2RB/Pn5b/2nr4/2pQ1Pnb/1k1q2RB/N1R1K1Q1 w - - 0 1 legal: proof: d4 e5 e4 exd4 c4 f5 e5 b5 Bd3 bxc4 Be4 fxe4 h3 g5 h4 g4 f3 Bh6 g3 Bg5 hxg5 Na6 Bf4 Rb8 Bc1 Rb6 Na3 Rf6 Nb1 Rf4 gxf4 Kf7 Kf2 Kf8 Ke1 Ke8 b4 Ke7 a4 Ke6 g6 Kd5 b5 c5 g7 h5 e6 g3 a5 h4 f5 e3 e7 g2 e8Q d3 b6 Kd4 f6 c3 b7 h3 b8R h2 f7 e2 f8B c4 Rb6 d2+ Kf2 e1N Qe7 c2 Rb8 Rh4 Ra4 Nd3+ Ke2 Nf6 g8R Ne5 Kf2 Nc7 Na3 Kc3 Bh6 Bb7 Rg4 Bd5 Qe8 Bf7 Rb7 Nh7 Rg7 Qg5 Rg6 Nf8 Qd8 Rd4 Nh3 g1N Rb2 Ne2 Nf4 Ng3 Nh5 Be8 Qf1 d1B Bf4 c1N Nf6 Bc2 Ng8 Nce2 Ke1 Bf5 Rd6 Bh5 Nc2 Bh7 Rba2 Kb3 Na1+ Kc3 Rg1 h1B Qf6 Bg2 Qf5 Bh3 Rb4 Rd5 Rbb6 Nd4 Rag2 Ndb5 Rh1 Rd2 Q5d3+ Kb2 Qg1 c3 Rg6 Nc4 Rbd6 Ne2 Bh2 Qf4 Qde3 Rd4 Qd3 Ka3 Qf2 Ng3 Rf1 Qg5 Qg1 Qd5 Kf2 Kb2 Rc1 Qg5 Ke1+ Qd2+
7B/NNRqq3/kB2p2R/1q2q2P/p2nr3/pr1Q3r/B2B1PQ1/b4b1K w - - 0 1 legal: proof: c4 b5 e4 f5 a4 fxe4 Qg4 bxa4 Qd1 d5 cxd5 g5 g4 h5 Ra3 h4 Ra2 Nd7 Ra1 Ndf6 h3 Nh5 gxh5 g4 Qb3 gxh3 Qc2 Bh6 Qd1 Bf8 b4 Kd7 d4 c5 d6 Kc6 d5+ Kb7 d7 a5 d6 h2 b5 e3 b6 c4 Qb3 c3 Bc4 e2 Be6 a3 Qd5+ Ka6 b7 h3 b8B c2 Nf3 Nh6 Nbd2 Nf5 Nc4 Nd4 Bd2 Bg7 Nfe5 Re8 Nc6 a4 Qg2 Qc7 d8B Qd7 Rg1 h1R Rc1 h2 Na7 Be5 Bbc7 Rb8 Na5 Rb3 Nb7 Qb5 Bf7 Bh3 d7 Bg7 Bb6 Be5 Qg8 Bf1 Rg6 Bg7 Rh6 Bf6 Rd1 c1Q Qg2 Qcc5 Rc1 Qcc6 Bdc7 Bg7 d8Q Qd7 Be5 Bh8 Rc7 Bf6 Bc3 Bg7 Kd2 Bf6 Ke3 e1Q+ Kf4 Bh8 Kg3 Qee2 Bf4 Qee5 Bg6 e6 Bc2 Rf8 Bb1 Rg8+ Kh3 Rg4 Bd2 Re4 Ba2 Rg1 Bf4 h1Q+ Kg3 Nc6 Kf3 Qh4 Bc1 Qhe7 Bd2 Qe5c5 Kg3 Nd4 Kh2 Bf6 Qg4 Rg2+ Kh1 Rg3 Qf3 Qe5 Qg2 Qc8 Qd5 Qcd7 Qc4 Rf3 Qd3 Rh3+ Qh2 Nc6 Bcd4 Qed5 Bdc5 Bc3 Bd4 Ba1 Bf6 Nd4 Bh8 Rhe3 Qh3 Qe5 Qg2 Rh3+
1r3R2/B1Pr1N1q/prn1N3/B2q4/Q3b1qk/4rppN/3P1nR1/Q2KN3 w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 dxe4 g4 h5 b6 hxg4 b7 c6 f4 e5 b4 e3 b5 e4 b6 Bd6 Bb5 Be5 fxe5 cxb5 c4 Ke7 h4 f5 e6 Kf6 h5 Kg5 e7 f4 e8N f3 h6 b4 c5 a6 h7 b3 c6 e2 c7 b2 Nf6 Nh6 Rh4 Qd5 Rh2 Rd8 h8N Nc6 b8Q Bf5 Ra4 Rd7 Na3 b1Q Nh3+ Kh4 Nc2 g5 b7 Bg6 Qf8 Rb8 Qe7 Bf5 Qg7 Bg6 Ba3 Bf5 Kf2 e1R Bb4 Rg1 Ne8 Bg6 Nd4 Qd3 Qa1 Rb1 Ba5 Rb6 Ke1 e3 Nc2 e2 Rf4 Q3e4 Rf8 Bf5 Kf2 e1R Qa4 Re3 Qga1 Qe7 Ng7 Be4 Ne6 Qh7 Rh1 g3+ Kf1 g4 Rh2 g2+ Kf2 Re8 b8B Red8 Ba7 Rdb8 Nf7 Reb3 Ke1 Re3+ Kd1 g1Q+ Ne1 Qg2 Nh8 g3 Nf2+ Qh3 Rg2 Q3f5 Nh3 Ng4 Nf7 Nf2+ Kc1 Nd3+ Kc2 Qg4 Kd1 Nf2+
QN3bk1/nn4p1/3N2bK/r1P1N2p/1n1PQ1br/bb6/3B2p1/N2B1RR1 w - - 0 1 illegal: Other
8/rK3P2/r1pN2pb/3Q1QpN/nk1n1rB1/1P3nB1/R2n2bn/5NNR w - - 0 1 legal: proof: c4 d5 e4 dxc4 e5 b5 e6 b4 Qg4 b3 axb3 fxe6 Qf3 e5 Qd1 e4 g4 a5 g5 h6 Qg4 hxg5 Nf3 a4 Ng1 a3 Qf3 a2 Qg4 Qd6 Qd1 Qa3 bxa3 Bb7 Nc3 Ba6 Nb1 Bc8 Ke2 Kd7 Ke3 Kc6 Kd4 Kb5 Kd5 e5 f4 e3 d4 g6 h4 e2 a4+ Kb4 f5 e1N a5 c3 h5 e4 f6 c2 h6 e3 a6 e2 a7 Bc5 h7 Bf8 Qd3 Bg7 Nd2 Bg4 Qf5 Bh6 Bh3 Nf3 Nf1 e1N Bf4 c1N Bg3 Nd7 Kc6 Nd2 d5 Nb6 d6 Nef3 d7 Na4 d8N Ne2 Ne6 Ned4+ Kb7 c6 Ng7 Rf8 Nh5 Ra8 f7 Nf6 Qd5 Bf5 Bg4 Be4 Qf5 Rhe8 h8Q Bd5 Qg8 Re4 Qd8 Rf4 Qdd7 Nfe4 Qde6 Nh2 Qee5 Nd2f3 Qee6 Rf8 a8N Ned2 Nb6 Ra8 Nc4 Be4 Nd6 Ra6 Re1 a1R Qed5 Ra8 Qde5 Nb2 Qc8 R1a6 Rb1 Na4 Ra1 Ne1 Qd5 Bg2 Ra2 Nef3 Qcf5 R8a7+
6qn/Prp1b2K/pQ1R2B1/q1RN2p1/3RQ1Nk/3rb2p/n2P1Rr1/3B4 w - - 0 1 illegal: No proof kernel
1n3q1N/4p1p1/1rqnQ1B1/1NP3nR/1p6/1BKb1Q1Q/2P1rR1p/k5qQ w - - 0 1 illegal: No possible last move, all moves rejected
2q2n1R/qNqp1nB1/6pp/4P1BN/3K1Q2/Nb2Qb2/N3Pp1b/3Rrk2 w - - 0 1 illegal: No proof kernel
2r1N1Nn/1Rpp2Nb/P5q1/1B6/2N5/p2nQP2/1np1KRnB/k1bQ1n2 w - - 0 1 illegal: No proof kernel
1qRb2Q1/Bp2n1b1/5P2/pQ5p/4r1b1/b4PQK/p2R3B/1nbNQ1Nk w - - 0 1 illegal: No possible last move, all moves rejected
2K1N2N/Q5Rn/3QR1pp/p4k1b/nP2b3/1b2P1n1/1NBbBp1r/2N4q w - - 0 1 legal: proof: d4 b5 f4 c5 h4 cxd4 a4 a5 axb5 e5 f5 g6 h5 Ra7 Bf4 exf4 h6 Ra6 g3 Re6 g4 Re7 g5 f6 Nf3 fxg5 Ng1 Rg7 hxg7 g4 Kf2 Ke7 b4 Kf6 c4 d5 c5 g3+ Kf3 d3 b6 d4 Ke4 d2 c6 f3 b7 g2 c7 d3 Nc3 f2 Na4 Nd7 Kd5 Bc5 Kc6 Bd6 b8Q Qe7 Qa7 Nc5 Nb2 Kg5 f6 Kf5 f7 Bf4 f8N Na6 Nd7 Qf8 Nf6 Qf7 Ne8 Nf6 g8B Nc5 Rh6 Qf8 Bb3 Na4 Bc2 Be6 Kb7 Bd5+ Kc8 Be4 Rh3 Qh6 Re3 Qh1 Rc1 Bd5 Re6 Be4 Nf3 g1N Nd4+ Kg5 Nb3 Kf5 Qe1 d1B Qd2 Be5 e3 Bh5 Rd1 Ne2 Nc1 Ng3 Be2 Bc3 Re1 Qg2 Rh1 Qg1 Qd1 d2 Rh3 Qh1 Rh4 Bd3 Rd4 Be4 Rd7 Bd4 Rg7 Bc3 Qg1 d1B Qh2 Nf1 Qd6 Bd2 Kd8 Ng3 c8N Bg4 Qdb6 Bh5 Nd6+ Kg5 Nf7+ Kf5 Bb1 Bb3 Qd6 Rf8 Bbd3 h6 Bc2 Nh7 Nh8 Rf7 Kc8 Rd7 Qdb8 Rd4 Rge7 Bd3 Rc7 Rh4 Rg7 Rh2 Qd6 Be4
b4B2/4PpN1/1QNk4/1r1ppR1p/n7/Nn1B2n1/2bP1N2/1KQb1qRn w - - 0 1 illegal: No possible last move
1n2KN2/1N1qNR2/1B5b/1k1ppQN1/2r3Pr/q4Rpn/3pBPnQ/5n2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g3 cxd4 g4 h5 h3 hxg4 Bf4 g5 Nd2 g3 Nb1 g4 Bc1 g2 Bh6 g3 Qg4 Bb7 Qd1 Bd5 Bd2 Be6 Bc1 Bg4 hxg4 Qc8 Kd2 Qc7 Ke1 Qd8 Ke2 a5 b4 e5 c4 a4 c5 d6 c6 d3+ Ke3 a3 c7 Kd7 c8N a2 b6 Kc6 b5+ Kc5 b7 d2 b6 Ne7 Qf3 Qd7 Na3 Ra4 Nh3 g1Q Ng5 Qh2 Be2 Rc4 Qf5 Rh7 Nb5 Na6 b8Q Ng6 b7 Rh5 Ne7 Bh6 Qh8 Qg2 b8N Nf4 Rb1 a1N Rb3 Kb6 Rc3 Qe8 Nd7+ Ka5 Bb2 Nb3 Nf8 Nb8 Rd3 Rh3 Bd4 Qd7 Bb6+ Kb4 Ra1 Rh4 Ra7 Qh1 Rc7 Qc1 Rc3 Qa3 Qhh7 Bg7 Qh5 Bh6 Ra7 Rh1 Qh2 Nh3 Rc1 Qc8 Bd3 Qa4 Qg1 Qa3 Rc3 Na1 Neg6 Nf4 Rf7 Rh4 Ne7 Nh3 Qh2 Ka4 Nc7 Qe6 Na6 Kb5 Nc5 Qc8 Nb7 Nc2+ Ke2 e3 Kf3 Qe8 Bf1 e2 Rd3 Rc7 Ke4 e1N Kd5 Rc4 Ke6 d5 Rf3 Ne3 Be2 Qd8 Rh7 Nf1 Kf7 Qc7 Ke8 Ng2 Rf7 Qd7+
2BQ2R1/p1QN4/Rb2bqbr/2B1P1K1/r3NpB1/3p4/Pb2q2p/2Bk2n1 w - - 0 1 legal: proof: e4 c5 d4 e5 b4 exd4 bxc5 Qf6 f4 Be7 e5 Bf8 e6 Qd8 h4 h5 g4 hxg4 Qf3 Nc6 Qh3 Ne5 fxe5 gxh3 Kf2 Ke7 Kg3 b5 Kf4 f5 c4 g5+ Kf3 d5 h5 d3 h6 d4 c6 h2 h7 g4+ Kf4 d2 c5 d1Q c7 g3 c6 b4 Ba3 g2 Kg5 f4 Ba6 Nf6 Nd2 Ng4 Nh3 g1B Be2 Rb8 Ne4 Nf2 Nc5 b3 Rb1 b2 Bg4 Rb4 Nd7 Qe2 Rd1 b1B Bc1 Be4 Rd3 Bf5 Ra3 d3 Ra4 Bg6 Ra6 Nd1 Nf2 Ra4 Ne4 Bb6 Re1 Nf2 Rg1 Nh3+ Kh4 Ke8+ e7 Kf7 Rg3 Ng1 Kg5 Bf5 Rg2 Ke6 Rg3 Kd5 Rg2 Bb7 c8Q Kc4 c7 Be6 Qb8 Bbd5 c8B Bf7 Qb7 Bde6 Qc7+ Kd4 Rg3 Bg6 Rg2 Qe8 Rg3 Qf7 e8Q Ba3 Qed8 Bb2 Rg2 Rf8 h8B Qf6+ Kh6 Rg8 Bg7 Re8 Bf8 Re7 Nd2 Ke3 Rg3+ Kf2 Ne4+ Ke1 Rg2 Rg7 Bc5 Kd1 Rg3 Qf8 Kg5 Rh7 Rh3 Rh8 Rh7 Qd6 Rg7 Rh6 Rg8 Qf8 Bf2 Qf7 Bc5 Qf6+
4qnr1/3RQpn1/Q2Nq1qN/pr1P1q1B/Bp1p4/1P2k1K1/3r1R1B/3B4 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 h5 Bc5 a5 Bb6 h6 gxh6 Rh3 h5 Rh1 h4 axb6 c5 d4 d5 c4 Bb7 Kd2 cxd4 Ke1 d3 Kf2 d4 Ke1 Bd5 cxd5 Kd7 Rh2 Ke7 Rh1 Ke8 Kf2 Ke7 e4 Kd6 g4 Ke5 b7 h5 b3 b4 g5 a6 g6 d2 g7 f3 Be2 Kf4 e5 h3 e6 h4 e7 h2 e8B h3 Ba4 Rh4 Qe1 Rh8 Bd1 Nh6 g8B Qe8 Nc3 Nd7 Ne4 Nf5 Nd6 Nf8 b8Q Ng7 Qb7 Rb8 Bh7 Rg8 Qee7 a5 Qa6 Rb5 Bg6 Nd7 Ra2 Nf8 Qe2 Qe6 Bh5 Qg6 Qe7 Qe6 Kf1 f2 Nf3 Ke3 Ne5 Qg6 Rg1 h1Q Rc2 h2 Rc7 Qe6 Rd7 Qe4 Rg2 Q4g6 Ng4+ Kd3 Nh6 h1Q+ Rg1 Qhe4 Rg2 Ke3 Rh2 Qc2 Rg2 Qc6 Rh2 Qa8 Rg2 Qe8 Rh2 Qc2 Kg2 f1Q+ Kg3 Qff5 Rf2 Kd3 Bdg4 d1R Bf4 Rd2 Bd1 Qfg6+ Kh4 Qgf5 Bh2 Ke3 Kg3 Qh7 Qa8 Qcf5 Qa6 Qhg6+
2N1b2K/r4N1B/BP1p1k2/3pbn2/1R5q/q3PQQ1/Qp2pbp1/2r2R1Q w - - 0 1 illegal: No extended proof kernel
2K1N3/1B2R2p/r1QP4/Q1R1b3/3npPpp/2pN3k/1BBnB1n1/2n3nq w - - 0 1 illegal: No proof kernel
B2r3n/rR1R3q/Nq1n1nqn/2Q1R2Q/R2b1kbB/2Nr4/3P1nP1/K2b4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 b4 Kd6 b6 Ke5 b7 f5 b5 c5 b6 h5 Nh3 a5 Qc2 f3 Kd1 c3 Ng1 f4 Nh3 a4 Ra3 c4 Bd3 f2 Rh2 f1N Be2 f3 Bd3 f2 Qb3 c2+ Ke2 c3 Ng1 h3 Qc4 h4 Bb2 c1Q Ra1 a3 Qb5+ Kf4 e5 a2 e6 c2 e7 Nh6 e8Q Nd7 b8R Ne3 b7 f1B+ Kf2 Ra7 Bd4 Bc5 Qh5 Be2 Bf6 Nef5+ Bd4 Qb6 Na3 Qb1 Be4 c1N Ke1 Bd1 Nc2 Ne2 Bf2 Nf6 Nb4 Nd6 Na6 Bd4 Qbc5 Bg4 Rd8 Rg8 Rh1 h2 b8R h3 Ba8 Qg6 Bh4 Rf8 Rd7 Rd8 Rc1 a1R Rbb7 Ra2 Rc4 Ra3 Ra4 Rd3 Rb8 Ng3 Rbb7 Nhf7 Ne2+ Ke4 Nc1 Nh8 Na2 Kf4 Nc3 Ngf5 Rg1 h1N Rf1+ Bdf3 Rf2 h2 Re2 Nh6 Kd1 Nf2+ Kc2 h1Q Re5 Bd1+ Kc1 Qa5 Kb2 Qb6+ Ka1 Qe1 Rg5 Qe7 Re5 Qeh7
N2qRR1Q/1Q4nb/rq6/NPPr1q2/3nR1b1/4q1nq/2rBBR2/k3K1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Kc5 g5 Kb4 g6 a5 b3 h5 e5 d5 g7 f5 b6 d3 b7 d2+ Ke2 h3 e6 a4 e7 a3 e8Q a2 Qg6 d4 Qg3 h4 Qge1 f3+ Kf2 h2 Bd3 f4 Qe3 h3 Bb2 Qb6 Qee2 Nc6 b8R Bg4 Na3 Bc5 Nb1 Nge7 g8R Ra6 Bh7 d3+ Kf1 f2 Qe5 Nd4 Rb7 Nef5 Nc3 Ng7 Qde1 d1R Bc1 d2 Bd3 Rh5 Rb1 a1Q Rf7 Qa3 Nf3 Rg5 Rg1 h1N Re8 h2 Nb5 Rg6 Qe7 Rc6 Nc7 Kc3 b4 Qb3 b5 Ng3+ Kg2 f1B+ Kf2 h1Q Rff8 Qh3 Na8 Qa3 Ne5 f3 Rb4 Bg2 Ra4 Kb3 Qf6 Ka2 Qe4 Ka1 Rf1 Rc7 Qb7 Rc6 Ke3 f2 Rb4 Rc7 Nc6 Be4 Na5 Qc3 Qh6 Bef5 Qh8 Bh7 Rg1 f1Q Rg2 Qf5 Rf2 Qa3 Ra4 Rf1 Rb4 d1Q Bd2 Rd7 Ra4 Rd5 Rb4 Qac1 Be2 Re1 Rf3 Qa3+ Kf2 Qad3 Rf4 Q1b3 Rf3 Rc1 Rf4 Rc2 Ke1 Qe3 Rf2 Qa3 Rb3 Qe7 Re3 Qed8 R3e4 Nb3 Rf1 Bg1 c5 Nd4 Rf2 Qe3
1rR1rQN1/KqrNrQ2/5b1P/1knB4/1nbQ1r1Q/1P2b3/2b2b1B/R5n1 w - - 0 1 illegal: No possible last move, all moves rejected
1b1b2Rr/4BnnP/2RbQn2/1B1r2nR/P3bNrn/b1K1kN2/1Q3R2/2q5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 h4 Kd6 e4 Kc5 e5 Kd4 d3 f5 Kd2 c5 e6 g5 d6 b5 d7 f3 h5 b3 e7 b4 e8Q b2 h6 f4 h7 g3 Bh3 g4 Bg2 b3 Qde2 f2 Qd1 f1N+ Ke2 f3+ Ke1 f2+ Ke2 c4 Bd5 g2 Qe7 c3 Rh3 g3 Ra2 c2 Bf3 Nc6 Qf6+ Ne5 Rh2 Nd2 Qa6 f1N Rh4+ Ne4 Qe6 Nf6 Qf5 Bd6 Ra3 Bb7 Ra1 Ra5 Rf4 Qc7 d8R Ne3 Qc8 Rd5 Qe6 Nf5 Rg8 Ng7 Nd2 b1N Nh3 g1B Ba3 c1B Qc2 g2 Qb2+ Qc3 Bh5 Nf7 Rf2 Neg5 Nf4 Bh2 Kd1 g1B Be2 Bb8 Be7 Bg3 Bf1 B1h2 Rc8 Bh4 Rc6 Ba8 Nh3 Bhe5 Nf4 Ke3 Nf3 Nd2 d4 Bd6 Bb5 Bb7 Qc2 b2 Ke1 b1R Qb2 Qc4 Kd1 Qf1+ Kc2 Qd1+ Kc3 Qe1 Qb3 Bca3 Qb2 Qh1 Ra2 Rg1 Ra1 Rg4 Rc1 Qg2 Rh1 Qf1 Rh3 Bg3 Rh4 Bc7 Rh5 Bd8 Qf5 Bb8 Qe6+ Re5 d5 Qc1+ Qc2 Ba8 d6 Bb7 d7 Ba8 Ra6 Be4 Rd6 Rd5 Rc6 Bb6 d8R B6c7 Ng6 Bgd6 Rg8 Bd8 Nf4 Nc4 Re8 Nce5 Rf8 Ng6 Rg8 Qh1 Qb1 Nh4 Qb2 Qc1+
rNBn1Nk1/3KB1b1/QqrN2R1/2Qr1b2/2rN1PP1/1Rq2rb1/2q2r2/7n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 h5 g4 a5 c4 d5 b4 e5 b6 e3+ Kd3 e4+ Kc2 e2 Kb3 e1R Ka4 d3 Kb5 h3 c5 e3 b7 h4 c6 a4 c7 d4 Qd2 h2 Nc3 a3 Nh3 a2 Qc2 e2 Kb6 d2 b5 d1Q Ng1 h3 Nb1 d3 Nc3 d2 Rb1 a1Q Qh7+ Bg7 Kc5 Nh6 b6 Bf5 c8N Qc2 Qg6+ Kg8 Nf3 d1R Nd6 Nc6 b8Q Ra3 Bg2 Rf1 b7 e1B Qc7 Rf2 b8N Rd5+ Kb6 Qf6 Rb3 Nd8 Na4 Qac3 Nc5 Ra4 Qc6 Rc4 Nd4 Rf3 Kc7 Bg3 Re1 h1R Nce6 h2 Qc5 Rhf1 Nf8 h1R Ba3 R1f2 Re6 Ra1 Bb4 Ra6 Kd7 Rc6 Bh1 Nhf7 Bg2 Ng5 Ba3 Nh3 Bf1 Ra4 Ba6 Rc4 Qh6 Rg2 Bb7 Nf2 Bc8 Nh1 Bb4 Bh7 Qg6 Rgf2 Qd3 Bf5 Qf1 Qh4 Qa1 Qh2 Qa6 Qg1 Ba3 Qga1 Bb4 Qa5 Ba3 Qb6 Bb4 Be4 Rg6 Bf5+ Nfe6 Rhh2 Qca5 Q3d3 Q6b5 Rf1 Qa3 Re5 Nb7 Qcc3 Be7 Qdc2 Qbc5 Rhf2 Nd6 Ra1 Qaa5 Raa4 Qab5 Ra8 Qa6 Bd3 Nf8 Rd5 Rb2 Be4 Rb3 Bf5+
1q1n2q1/NQQ3rn/3b1B1P/K1R1BB1R/4q1r1/nNrq1BP1/8/qb1q1k2 w - - 0 1 illegal: No proof kernel
3Q4/2n1Kb1P/R2N4/qnN1b1qN/nq1kn1R1/N1nr3P/3B2Bb/1Q1r3n w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 a4 b5 c4 d5+ Kf3 Ke5 e4 f5 h3 b3 a5 b2 a6 g4+ Kf2 b4 a7 b3 c5 d3 h6 f3 Ke3 f2 c6 g3 c7 g2 h7 d4+ Kf3 f4 Nc3 b1Q Ra2 d2 Qe2 d1N Qb2 d3 Na4+ Nc3 Bd2 Qg5 Be1 d2 Qa1 d1N Ba6 f1N Bb5 b2 Ra3 Bd6 Ba6 Ng3 Bf1 Be6 c8Q Kd4 e5 Bf7 e6 Na6 e7 Nc7 e8N Nf6 Bd2 Nfe4 Qd8 N3b5 Nc5 Ndc3 Ra6 Na4 Rh2 Rc8 a8N Nh1 Nb6 Qe1 Qc1 b1N Nc4 N1c3 Na3 Rf8 Qb1 Rg8 Qf6+ Be5 Nd6 Rgd8 Qh8 Rd7 Qg8 Rcd8 Ne2+ Kd5 Qe8 g1B Ng3 Kd4 Rg2 Bh2 Nh5 Qeh4 Rg4 Qe1 Qb3 Qa1 Qb1 Qb2 Bc4 Qb4 Bd5 Qa5 Ba8 Qb4 Ndb7 Rd5 Nd6 Rd7 Qd8 Qa5 Kg2 f3+ Kf1 f2 Kg2 Na2 Be3+ Kc3 Kf3 Rd1 Ndc4 R7d3 Nd6 Nf6 Be4 Nfe8 Bb7 f1Q+ Ke4 Qe1 Bc6 Qg8 Kf5 Nf6 Bg2 Ne4 Bc1 Kd4 Bh6 Qeb4 Bd2 N2c3 Nf4 Ng5 Nh5+ Bef4 Kf6 Nge4+ Ke7 Be5 Rg6 Qg7 Rg4 Qg5+
2B2nbR/4K1Bq/2RnP3/1k1Br3/7n/bP2b2b/b3Nnrq/B1nQNQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 e4 Kd7 c4 h5 g4 a5 g5 f3 g6 f2 c5 h3 g7 h4 e5 f4 b6 Kc6 b7 h2 Bg2 f1N Bh3 f3 Ne2 f2 Ra3 a4 Qb3 Qe7 Bh6 Nf6 g8Q Ne8 Qg4 Nd6 Qc3 Qh7+ Qf5 Ra5 Rg1 h1Q Nf4 Ng3 Bf1 h3 Ra2 h2 Qb4 a3 Ne6 Nd7 b8B Ne2 Bc7 Nc1+ Kc2 d3+ Kc3 d2 Kd4 d1N Rg3 Rg8 Qb3 Ne3 Bg2 f1B Nc3 Bc4 Ne2 Rb5 Ra1 a2 Ng5 Rg7 Bf3 Ng2 Rh3 Nh4 Qd1 Rg8 Rb1 a1B Bg7 Ba2 Bd8 Ra5 Bdf6 Kb5 c6 Be7 c7 Nf8 Qf4 Qg2 Be4 h1N Qff1 Qh2 Nf3 Nf2 Ne1 Bd7 c8B Bf5 Bh8 Rg2 Bfg7 Bd7 Rc3 Bh3 Bf3 Bg5 b3 Bb2 Be4 Ba3 Rc6 Be6 Rb2 Bg8 e6 Bd2 Rbc2 Bf4 R2c3 Bg5 Rg3 Be3+ Ke5 d4 Kf6 d3 Bd5 d2 Rg6 Rg4 Ke7 Rg2 Qc2 d1B Rh6 Qh3 Qd2 Qh2 Qd4 Bc2 Qd1 Bf5 Rh5 Bh3 Rh6 Qg6 Ba1 Qh7+ Bhg7 Ra4 Rh5 Re4 Rh6 Re5 Rh5 Qd3 Rh8 Qh7
6QB/2Q1n3/2rNRnrq/4Q3/4PKrq/P2brN2/1q1n1q2/kBbR2Qq w - - 0 1 illegal: No possible last move, all moves rejected
q1N2r2/1k4Bb/nq1q4/3q1Q2/1PrRb1r1/Q1b3PB/3R1qB1/b1K1BN1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 c4 Kd7 e4 Kc7 b4 f5 b6+ Kb7 g3 h5 c5 a5 e5 h3 e6 f3 e7 a4 e8B h4 Ne2 f4 Nec3 d3 Na2 a3 Bg2 f2 Qf3 f1R Qe2 f3 Bh5 d4 Qe5 h2 Qg5 h3 Qe5 Bf5 Rg1 h1B Qd6 h2 Nbc3 Bg7 Qg6 Na6 Rb1 Nh6 Nd1 Rg8 Rb2 Rc8 Nac3 a2 Nb5 a1B Ne3 Ng4 Na7 Nf2 Bg4 Rc6 Qf6 Bh7 Qf5 Bh8 B4h3 Rg4 Ra2 Rc8 Bb2 Rc1 Rd1 Rc4 Bc3 Be5 Kc1 d2+ Kb1 d3 Nf1 Qd6 Rc2 Rf8 Nc8 Bf6 Bb2 Bc3 c6+ Ka8 c7 Kb7 Qa5 Qc5 Qa3 Qb5 Rdc1 d1Q Rd2 Qda4 Re1 Qd5 Re4 Qaa5 Rd4 Qd6 Rc2 d2 Bc1 Qad5 Bb2 d1Q+ Bc1 Qd3 Bd2 Q3g6 Be1 Ne4 Kc1 f2 Ne3 f1Q Rcd2 Qf2 Nf1 Kc6 b7 Qge6 b8B Kb7 Bf3 Bg2 Ba7 h1Q Bc5 Qb6 Bd6 Qg6 Be5 Qgd6 Bh8 Qfg1 Bg7 Nf2 Bd1 Bge4 Bf3 Qhh2 Bfg2 Nh1 Ne7 Qf2 c8Q+ Ka7 Qe6 Kb7 Qf5 Qhg1 Nc8 Qa7 Rd1 Qa8 R4d2 Qfb6 Rd4 Qe3+ R1d2 Qf2
2Q1b2q/k5qR/Nq2RB1B/N3bqP1/n3BQ1K/2P1b3/2r1r2b/B1n2b1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 d5 f4 Kd7 Kf2 Kc7 g4 Kb6 f5 h5 g5 e5 f6 a5 f7 h3 Kg3 e3 Bc4 d3 Ra4 d2 Bd3 d4 Qf3 d1B Bh7 h2 Kh4 e4 Ra3 a4 Ra2 d3 Rb2 d2 Qf1 a3 Nh3 a2 Qg2 a1B Qg3 e2 Qe3+ Bc5 f8Q e1B+ Qff2 Nc6 Na3 Na5 Qf4 e3 Rb1 e2 Ng1 Nf6 Bf5 Ba6 Bc8 Be5 c3 Ba4 Bf5 d1Q Be4 Be3 Nh3 Re8 Bb2 Qc2 Ba1 Ka7 Nc4 Nb3 Na5 Nd7 Rd1 Qb8 Rd6 Nb6 Re6 Nc1 Q2g3 B1d2 Nf2 e1Q Qh3 Qc7 Qhf5 Qg1 Nd3 Qg7 Nc5 Re7 Qf8 Qb1 Qc8 Qf2+ Kh3 h4 Kg4 h3 Kh5 Bb7 Na6 Qf1 Kh4 Qb2 Rg1 h1R Rg2 h2 Rg3 Rg1 Rh3 h1Q Rh2 Rb8 Rh3 Bc6 Rh2 Bc2 Rh3 Na4 b6+ Ka8 b7+ Ka7 b5 Bd3 Rh2 Rg2 Rh3 Bg1 Rh2 Bde3 Rh3 Ra8 Rh2 Rc2 b8B+ Kb6 Bc7+ Ka7 Bd8 Be8 Rh3 Qff3 Rh2 Bf1 Rh3 Rd7 Bf6 Rdd2 Rh2 Re2 Rh3 Qd7 Bg7 Rb8 Bh6 Qg7 Rh2 Qb4 Rh3 Qc5 Rh2 Qc6 Rh3 Bh2 b6+ Ka8 b7+ Ka7 Qg4 Qf5 Qf4 Ra8 b8B+ Kb6 Bd6 Ka7 Be7 Qb6 Qc5 Rd8 Qc8 Rd1 Bf6 Qh8 Bd3 Qhb7 Be4 Bc5 Rd3 Be3 Rd7 Q7c7 Rh7 Qcg7 Bb2 Bh3 Ba1 Rh1 Qd8 Bg2 Qc8 Bf1
1nnB1Rq1/2r1q3/Q3BQP1/2RqRr1k/1bN2b2/1K1q1b2/r1PN2q1/R1b5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 f4 d5 b4 e5 g5 a5 b6 h5 b7 d3 Kc3 d2 b5 d4+ Kb3 e3 b6 a4+ Kb2 d3 Ne2 h3 Qe1 d1R Nd2 e4 Ra2 h4 f5+ Kh5 g6 h2 f6 a3+ Kb3 h3 f7 Bh6 f8R Bg4 Nc4 d2 Re8 Rh7 Re7 Bf4 Rf7 Ne7 Nc3 e2 Nb1 e3 Rg1 h1Q Rf8 h2 Re8 Nc8 Qg3 e1B Rg2 e2 Qe3 Rc7 Qd3 Bf3 Ra1 a2 Qd6 Qg1 Qf6 h1Q Ba3 Qgd4 Be7 Q4d5 Rf8 Qe8 Bd8 Qg1 Rg3 Qg2 Rg4 Qef7 Re8 Qg8 Re5+ Bg5 Rd4 Rc1 Rg4 d1Q Nd2 Bg3 Rf4 e1Q Rff5 Bf4 Bd3 Qde2 Be4 Qh4 Bd3 Rf1 Be4 Nd7 b8Q Ra6 Qa7 Nb8 b7 Qhh3 Rd1 a1B Qab6 Ra8 Qa6 Bc3 Ra1 Bb4 Bd3 Qde4 Rc5 Qed5 Re5 Qhe6 Bf5 Qe7 Be6 Ra7 Qb6 Ra2 Qa6 Qee4 Nb1 Bc1 Nd2 Qf5 Qc6 Bf4 Qa6 Nc6 b8R Rf2 Ra8 Nb8 Bd7 Rf1 Be6 Bh6 Qa5 Be2 Qa3 Nc6 Rb1 Nb6 Rc8 Nb8 Ra1 Rf4 Qa6 Bf3 Re3 Qfe4 Re1 Rf5 Re2 Rd7 Bc7 Bf4 Rf8 Nc8 Bd8 Rc7 Re3 Qed4 Re5 Qd3+
4n2n/R2PB1KQ/1rk1N1bR/1r4N1/b2Q2q1/r2Nb3/P1BN2qr/1n4rn w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 b5 e4 c4 d4 f3 g4 b3 d6 c3 e5 f2 g5 h3 g6 h4 g7 c2 e6+ Kc6 d7 h2 e7 b2 e8N h3 Qe1 b4 Qc3+ Bc5 Qd2 b3 Nf3 Nf6 g8Q Ra3 Ba6 f1R Qg7 Rg1 Ne1 Rh6 Nc7 Qg8 Qgg5 Ne8 Nc3 b1B Qe7 b2 Ne6 Qg4+ Ke5 f5 Qh4 f4 Ng5 f3 Bd3 f2 Nce4 f1Q Qe3 Rf6 Nd2 Qfg2 Qh7 Ba6 Bg6 Bb5 Nd3 Ba4 Qf4 Rf5+ Ke6 Re5+ Kf7 Ba7 Qf2 Rb5 d8N+ Kc7 d5 Nc6 Qf3 Ne7 Qf6 Be3 d6+ Kb6 Bf5 Ng6 Nde6 Kc6 d7 Nh8+ Kg8 Rb6 Qd4 Rb5 Nb3 Rb6 Bd2 c1R Bb4 Rc5 Nd2 Bbc2 Rc1 Rcb5 Be7 b1N Ndc5 Bcb3 Bc2 Bd5 Nd3 Be4 Rf1 Bg6 Rf6 Re1 Kf8 Re2 Rc1 h1R Kg8 h2 Kf8 Be4 Rh6 Rg1 Kg8 h1N Kf8 Nc7 Kg7 Bg6 Rf1 Q2h3 Rf8 Rh2 Ra8 Qhg2 Ra7 Ne8+
2b4q/1kPrK2b/R1r4Q/2b1Bq2/2q4r/2nbBNP1/3rR2Q/1r1nN1BB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kh5 a5 e4 f5 b4 d3 c4 f3 b6+ Kb7 e5 d2 b5 a4 g3 h3 e6 h2 c5 a3 e7 d4 Kg5 h5 Ra2 h4 Ra1 f2 Qg4 d1R Ne2 f4 Kg6 d3 Kf7 a2 e8Q f3 Bg5 d2 Bh3 f1B Qh5 f2 Qe7+ Qd7 Nc1 Nf6 Nd3 Ra6 Ne5 Nc6 Rg1 h1Q Na3 Ng4 Nc2 Ne3 Bf4 Nd4 Nf3 Ne2 Nce1 Nc3 Qh6 Bd3 Rg2 f1Q Re2 Qc7 Bg2 h3 Ke8 h2 Qeh7 Rc1 Bg5 Ned1 Be3 Be7+ Kf7 Rc2 Bg1 Rd8 Be3 Rd6 Ke8 Ra4 Kf7 Rh4 c6+ Kb8 b7 Qa5 Rc1 a1R Ke8 Raa2 Ra1 Qb4 Qh8 Qc4 Bg1 Rab2 Ra6 Rb1 Q8h7 Qf2 Qh8 Qfc5 Q8h7 Qf5 Be3 Qf1 Bh1 Q1h3 Bg1 Rg6 Qh8 Bc5 Be3 Rd6 Ke7 Nb2 Bg1 d1R Q8h7 Rdd2 Be3 Be6 Bg1 Kc7 b8B+ Kc8 b6 Nbd1 Ba7 Rcc1 Bg2 h1B b7+ Kc7 b8B+ Kc8 c7 Kb7 Bb6 Bc8 B8a7 Qhg4 Bd4 Qgg8 Bf6 Qh8 Be5 Bb4 Bg1 Bc5 Bf1 Bg2 Bb6 Bh3 Bg2 Bg4 Ba7 Bh5 Bh1 Bg6 Qh5 Rcc2 Q7h6 Bh7 Be3 Rcb2 Bg1 Rbb6 Be3 Rbc6 Bg1 Re4 Qh2 Rh4 Bb6 Ba3 Bbf2 Bc5 Be3 Rd7#
1r1N1r2/Q2Rn1r1/b2BQq1n/1q1q2B1/2Bq1R1r/P3bP2/n2k1N2/K5bB w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kf7 d4 Kg6 Kd2 Kg5 Kc2+ e3 Kb2 Kf4 a3 c5 d6 h5 g5 e5 d5 b5 d7 h3 d6 b3 g6 c4 g7 h4 Nc3 b4 Rb1 h2 Bg2 e4 Ka1 h3 Qf1 b2+ Ka2 Qf6 d8B Ba6 d7 Rh4 Bb6 Nc6 d8Q Nce7 Nb5 c3 Nf3 c2 Ng5 Nh6 Ra1 b1R Bb2 e2 g8B e1R Bh7 e3 Bc5 e2 Rg1 h1Q Bb7 h2 Qb6 Qe4 Qe6 h1Q Na7 Qed4 Bd3 Qhd5+ Bc4 c1B Bc6 Be3 Ne4 Rb8 Qg2 Rf1 Bc1 e1Q Qg7 Qe2+ Bd2 Rbe1 Rd1 b3+ Kb1 b2 Rg4+ Kf3 Bd6 Rg1 Bb7 Ref1 Nc6 Rg3 Ka2 b1N Nd8 Nc3+ Ka1 Qed3 Rf4+ Ke2 Qgf7 Rg7 Bc6 Neg8 Qa7 Ne7 Ng5 Qb5 Bh1 Qdd5 Ne4 Na2+ Be5 Nc8 Bc1 Bfc5 Bd2 Ne7 f3 Rfg1 Nf2 Rf7 Bdc3 Rgg7 Bd6 Rf8 Bd4 Qg6 Bf6 Qgf5 Rb1 Kd2 Bg5 Qf6+ Rb2+ Kc3 Rd2 Q3e4 Nd3 Bg1 Nf2 Be3 Re2 Qed4 Rb2 Qa5 Rb7 Qab5 Rd7 Kd2+
BKrbRB2/Qn2N3/b1Brq3/1b1P2RQ/1q4b1/3NB3/1qn1P3/krn3n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 h5 d4 a5 b3 c5 b6 f5 b7 c3 g5 c2 g6 f3 g7 h3 Qd3 h4 Be3 c1N Rh2 f4 Qf5 a4 Nc3 c4 Qc2 a3 Qf5 a2 Qd7 Ka3 b4 Kb2 b5 f2 b6 f3 Kd5 Qe8 Bh6 Nc6 b8Q Ra7 b7 Be7 Rh1 h2 Qf5 h3 Qc7 Nd8 b8B Nb7 Bg5 Nh6 g8B Ng4 Qfd7 Bd8 Kc6 Ne5+ Kb6 Rh6+ Qd6 Qe6 Nb5 c3 Be7 c2 Bg2 f1Q Bg5 f2 Nf3 Qe1 Nc3 f1B Rg1 h1R Nd5 h2 Be3 Qc3 Ne1 Nf3 Ne7 Qb4+ Kc6 Rg6 Qa5 Rh6 Qh5 Rf6 Bh3 Bg2 Bf5 Bh3 Rg5 Bg4 Be4 Rf1 Bf7 h1B Be8 Ng1 Bd5 Be4 Bc7 Rh6 Bb6 Bd3 Bc5 Nb3 Rc1 a1Q Rd1 Bc4 Nd3+ Ka2 Rd2 Rb1 Rd1 c1N Rf1 Rh7 Rf8 Qb2 Bd7 Rf7 Re8 Na1 Bh1 Nc2 Bf3 Qe5 Qc7 Bb5+ Kb6 Rf6+ Bdc6 Ka1 Bd5 Nd6 Ba8 Nb7+ Bc6 Qe6 d5 Ra3 Bd6 Rc3 Ka7 Rg6 Kb8 Rh6 Bd7 Rc6 Bdc5 Rh7 Qb6 Rd6 Bc6 Rf7 Ng8 Rc7 Ne7 Na5 Qa7 Bca6 Bcd4 Nb7 Bg7 Qbe5 Bh6 Qeb2 Bf8 Rc8+
QK1n4/3N2q1/3PN1B1/5r2/2b1Q2N/NbP2n2/rbrR1Bqr/1nk2qqR w - - 0 1 illegal: No proof kernel
n5R1/5NQ1/P3bq2/k2Pbq2/1Rr1nrNR/brb3q1/RQnB1n2/K4B2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 g5 Kc2 f5 Kb2 b5 a4 c5 h4 Kc7 e4 Kb6 e5 g3 h5 c4 d6 c3+ Ka2 b3+ Ka3 g4 d5 f3 e6 b2 Ka2 g2 e7 f2 e8R g3 d7 f4 h6 c2 h7 f3 Qe1 b4 Rh3 Na6 Bd3 f1R Re7 b3+ Ka3 f2 Bf4 c1B Be4 Nc7 Rh1 Bg7 Nc3 b1Q+ Kb4 b2 Ka3 Nf6 Bg6 Ng4 Rh6 Ka5 Qd2 Be5 Rh1 Rb8 Ra2 Na8 Nh3 g1B Bd3 g2 Ng5 Qb6 d8R Be6 Be2 Qf5 Rh4 Bh2 Nd1+ Bc3 Rde8 g1Q Ne3 Qg3 Rb7 Qd6+ Kb3 b1N Nf7 Na3 Rg8 Nc2 Rb4 Ba3 Ba6 Rc1 Bf1 Qd8 Qd4 Qe7 Qg7 Qef6 Nd1 Rb5 Bd2 Rb7 Ne3 Rb8 Ba6 f1N Be2 Nf2 Ng4 Qg2 Bd3 Ng3 Bf1 Rb5 Bc4 Nge4 Bf1 Ka6 a5 Bhe5 Qf8 Qg3 Qg7 Kb7 a6+ Kb6 Rc8 Re8 h8Q Ka5 Rd8 Re7 Rg8 Rc7 Rb2 Re1 Ka2 Re3 Kb1 Rc4 Ra2 Rf3 Qhh6 Ba1 Qe3 Rf4 Qb3 Bac3 Qb2 Rc6 Rd4 Rb3 Rb4 Ne1 Ka1 Rc5 Rh5 Rc4 Rh4 Nc2+
q1Q2n1Q/brKP4/4BQNB/N3Qn2/3q3n/4P1r1/bb3q1b/Rr1k1q1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 d4 a5 d5 f5 d6 h5 b3 a4 b6 a3 e3 f3 g5 h3 b7 f2 g6 f4 g7 f3 Qd3 h2 Bg2 f1Q Qd1 h4 Ne2 f2 Bh3 c3 Bg2 c2 Rg1 h1N Qd4+ c4 Be4 a2 Bh7 h3 Qb2 c3 Bd2 c1B Nf4 h2 Na3 Ra7 Be1 Nh6 g8Q Be6 Ng6 Nf5 Nb1 Nhg3 Rg2 h1Q Rh2 Nh4 Rh3 Ngf5 Nd2 c2 Qf7 Qfg1 Qf6 f1Q Bg3 Rg8 Nc4 Qgf2 Bf4 Qc6 Qd4 Bb2 Rh1 c1R Bh6 Rb1 Na5+ Ka3 b4 Qcc8 b5 Nd7+ Ke4 Qa8 b6 Bg7 Qd5 Nf8 b8Q Rb7 Qc8 Bd4 Qde5 Kb2 Qc6 Bc4 Qc8 Kc1 d7 Kd1 Qg3 Bh8 Qge5 Rg7 Bg8 Be6 Ne7 Rg3 Ng6 Qc7 Bf7 Qc3 Bg8 Bb3 Bc4 Bc5 Kd5 Qd4+ Kc6 Bd6 Be6 Bb8 Qg7 Ba7 Qf7 Bf6 Qe7 Bg5 Q7g7 Bf4 Qgf6 Rb8+ Kc7 Rb7+ Kd8 Rc7 b7 Bc4 b8Q Rb7 Qg5 Rh3 Qh8 Bh2 Qbc7 Rg3 Qgf6 Rc1 Rb1 a1B Qce5 Bb2 Ra1 Rb1 Bg5 Rb8 Kc7 Ba2 Bh6 Rb7+
1qQN2B1/2b1r1Rn/6K1/1br1R1r1/1RRbnr1k/2QPB1b1/P4N2/bnb5 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 h4 e5+ Ke3 b5 f4 g5 d6 c5 f5 b3 d3 b2 f6 c4 f7 c3 d7 c2 Qf3 b4 Qd1 b3 Nf3 g3 Nh2+ g4 Nc3 b1N Qe1 g2 Nd5 g1B+ Qf2 b2 Bg2 g3 Bf1 g2 Nc3 Rh7 Nd1 Bd6 f8R Nf6 Ng4 Re7 Rh3 Nh7 Rg8 Bc7 Rg7 Na6 Nh6 Nc5 Nf7 Ra4 Rf3 Qg8 d8Q Ba6 Rf4 Bb5 Qc8 Qe8 Bd2 c1B Nd8 Qg8 Rfg4 Rc4 Be2 Rc3 Bf3 Qb3 Ke2 e3 Bd5 Ne4 Kf3 e2 Bg8 e1B Qd4 Bg3 Be3 Rc5 Qc3 B1f2 Rf4 g1R Rfg4 Bc4 Rf4 Qb8 Rfg4 Rg2 Rf4 Bg1 Nf2 Bb5 Rfg4 B3h2 Rf4 Rg5 Rf5 Bg3 Rf4 Nd6 Rc4 Ne4 Rb4 Na3 Rc4 b1R Rb4 Rb2 Rc4 Rb4 Rb1 Ra4 Rb3 Nb1 Rbb4 Nd6 Kg2 e4 Kh3 Kh6 h5 Be5 Bf4 e3 Kh4 e2 Be3 e1B Rf7 Ne4 Rf5 Bf6 Re5 Kg7 h6+ Kg6 Qb3 Nf8 h7 Bg7 h8R Nh7 Qc3 Bf6 Rf5 Bd4 Re5 Bh2 Qc2 Bec3 Qd2 Ba1 Qc3 Nhf6 Rh7 Bf4 Kh3 Bg3 Rg7+ Kh6 Kg2 Kh5 Kf3 Bh4 Kf4 Nh7 Nd1 Be1 Nf2 Kh4 Ng4 Rg6 Kf5 Bg3 Nf2 Rg4 Qd2 Rf4+ Kg6 Ra5 Qc3 Bc6 Nh3 Rd5 Nf2 Rac5 Re6 Rdf5 Re5 Bb5 Kh6 Rh5+ Kg6 Rg5+
b5n1/1B2P3/nNbbNnRQ/B1P5/B1Q2n1q/1bRrn1r1/3r3B/nk3K2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Kc5 g5 Kb4 g6 a5 b3 h5 e5 d5 g7 f5 c5 f3 b6 f2+ Ke2 h3 e6 h2 b7 a4 Nh3 a3 Ng5 d3+ Ke3 d2 Ke2 d4 Ne4 h4 Ng3 a2 Qe1 h3 Nh5 d3+ Kf3 f4 Bb2 Qh4 Bd4 Bd7 Qd1 Ra3 Bg2 f1N Qc1 d1R Nd2 Bd6 e7 Ne3 Rg1 h1B Nc4 h2 Nb6 d2 Ke2 Na6 b8Q Ng4 Bb7 Bdc6 Qf8 N4f6 Rg6 Rh6 Rb1 a1N Bg1 Ra2 Qc4+ Ka3 Rc1 Kb2 Rc3 Kb1 b4 Rh7 b5 f3+ Kd3 f2 Ke2 f1N Nf4 Ra3 Ne6 Ne3 Bf2 Ng2 Be1 Nf4+ Kf1 Rh5 Rh3 Rd5 Rc3 N6h5 Qf6 Rd3 Qg5 Bhd5 Qh6 Ngf6 g8B h1B Bf7 Ng8 Be8 Rg3 Nc8 Nhf6 b6 Ba4 Bec6 Bb3 Ba4 Bde4 Bbc6 Ra2 b7 Bhf3 b8B Ra3 Be8 Ba8 Nb6 Bfc6 Bd7 Ra2 Bc8 Rc2 Rf3 Rc3 Bb7 Rd3 Bc7 Rc1 Bb8 d1N Ba5 Rc2 Bc7 Rcd2 Re3 Rd5 Rc3 R5d3 Qb4 Ne2 Ng7 Bf4 Bd6 Rg4 Qc4 Bh2 Bg3 Ne3+ Ke1 Rg5 Ne6 Rg4 Bf2 Be5 Bg3 Bd6 Kf2 Nf4+ Kg1 Neg2 Bh2 Rgg3 Kf1 Ne3+
Q1Nqrrr1/N1r1Q1Q1/rb3R2/Q2R2qP/1b2B3/8/PKn1krn1/3bB1b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Qd7 d4 Ke7 Kd2 Kd6 Kc2 c5 e4 b5 h5 g5 Qe1 f5 Na3 g3 Kb3 c4+ Kc2 g2 Be2 b3+ Kc3 f3 Nc2 f4 Na3 f2 Rh4 f1R Bg4 b2 Be6 b1Q Bh3 f3 Be6 f2 Nf3 g4 Bf5 g1B Be3 b4+ Kd2 b3 Kc3 b2 Ng5 Nc6 Rh3 Nf6 Nc2 Qc1 Bd2 b1R Rf3 Nb4 Rf4 Rg8 e5+ Ke7 e6 Kd6 Qe4 Ra6 Rf3 Rb2 e7 Re1 e8Q f1R Qf7 Bf2 Qe2 g3 Qg7 g2 Rd3 g1B Nf7+ Kc7 Qf3 Kb6 d6 Kb5 Qa8 Re8 d5 Bb6 Be4 Ng4 Rb1 Qc7 d7 Ne3 d8Q Ng2 d6 Bg4 d7 Be2 Rf3 Bd1 Qh4 Be7 Be1 Qd6 Qhf6 Qg5 Nd4+ Kc5 Qe6 Re2 Nb5 Ref8 Bc6 Rff2 Na7 Qc7 Qef6 Bd6 Rc1 Ree8 Be4 Be7 Rc2 Qc8 Kb2 c3+ Kb3 Bd6 Qe7 Qc7 Rf6 Kd4 Bf5 Bdc5 Be4 Ke3 Nd6 Qb8 Qg6 Qc7 Ndc8 Qd6 Qgh7 Qd2 Qhg7 Ke2 Qe5 Bd6 Qa5 Bdc5 Ka3 Bd6 Rb2 c2 d8Q c1R Qde7 Rc7 Rb3 Qd3 Kb2 Nc2 Rb5 Bb4 Rc5 Qd6 Rd5 Qd8
2B2Q1n/rrn2q2/1r1bPkb1/3R2rQ/N1Rr1BBq/2qP2r1/q5NK/7B w - - 0 1 illegal: No possible last move
R2Bb3/1N1PPqq1/4Q1N1/bkn5/r3rb2/Rr2r2b/Q3K1bQ/b2B1nQ1 w - - 0 1 illegal: No possible last move, all moves rejected
4Nk2/1QQ1q1r1/Q1r3Rn/KB4B1/3NbP2/r2q1P1n/pQ1n3b/R1r2b1r w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 a5 f5 a6 f4 exf4 bxa6 Rh2 a5 Rh1 a4 Kd2 a5 b4 d5 c4 h5 g3 e5 b5 d3 Kc3 d2 c5 e4 b6 h3 b7 d4+ Kc4 e3 Kb5 d3 c6 e2 c7 e1Q Nc3 h2 Qg4 d1R Be3 d2 Nh3 a3 Rg1 h1R Bb6 a4 Qg5 a2 Qg4 a3 Qf5 h4 Qh7 Ra7 Rc1 a1R Nd5 Bd6 Nf6+ Kf8 Ne8 Nc6 b8Q Nh6 Qb7 Na5 Be3 Nc4 Ng5 h3 Nf3 h2 Nd4 Bh3 c8Q a2 Be2 Rg8 Qhc7 Bf1 Qca8 Ra3 Qaa6 Rg7 Rb1 Na5 Kb6 Qd7 Bb5 Nb3 Rc1 Rb1 Rg2 Rb2 Ra1 Rc1 Rg1 d1B Rg2 Nd2 Rg1 Rd3 Ka5 Ra3+ Ba4 Qh3 Rg2 Rbc2 Qb2 Bde2 g4 Re7 g5 Bf3 Nf5 Bc5 Bd4 Rg1 Bf6 h1N Rg4 Be3 Nd4 Rd7 Qab7 Rc6 Rg2 Bd5 f3 Nf2 Qa6 Qf5 Qab7 Rh1 g6 R6c2 Rg3 Nh3 Bd8 Qd3 g7+ Kg8 Rg5 Bg1 Rg6 Bh2 Bg5 Kf7 Nf5 Qe6 Nd4 Qf6 g8Q+ Ke7 Bh4 Rc6 Bg5 Be4 Qc4 Kf8 Qcb5 Rg7 Q5a6 Rac3 Bb5 Qe7 Bh4 Rb3 Bg5 Ra3+
5Bn1/2kq1Qnb/rN6/r3NRqQ/q1n1P1b1/3BPK1p/1N2NR1b/1q4q1 w - - 0 1 illegal: No possible last move
N2N2q1/r4qnQ/N1KN4/b3nB1R/Ppb1Pb1b/krQ4r/3Rq1b1/6B1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 d4 g5 e4 c5 h4 f5 h5 b5 h6 g3+ Kf3 g4+ Kg2 c4 h7 b3 Rh2 c3 Rh5 b2 Rh3 f3+ Kh1 f2 Kg2 c2 Rh4 f4 Rh1 Nd7 Ne2 Qe7 Qe1 Ba6 Qc3 Ne5 Na3 b1R Be3 c1B Ra2 Qf7 Nc2 Nh6 Nb4 Nf5 Rd2 Be7 Rh3 Ra7 Rh5 Rf8 h8Q Rb3 Qg8 Bh4 Qg7 Rh8 Qh7 Bb7 Na6 Ng7 Qc8 b4 Nc3 Ba8 Bc4 f1B+ Kg1 f3 Nb5+ Ke7 Qc6 g2 Nbc7 f2+ Kh2 Bb7 Na8 Bc8 Be2 Be6 Qc3 Kd6 Bb5 Bc4 Bd7 f1Q Bg1 Qe2 Bc8 Bd8 Kg3 Ba5 Bd7 Bf5 Kf4 g3 Bc8 Bg4+ Bf5 Bh3 Bf2 g1Q Be3 Ke7 d6+ Kf6 d5 g2 d7 Ke7 d8N Kd6 Ra2 Bd2 Rc2 Be1 Rd2 Bh4 Qd3 Qb1 Bb6 g1B Qc3 Qa2 Bd4 Bg2 Nb7+ Ke7 d6+ Kf6 d7 Bh2+ Qg3 Ke7 Nd8 Kd6 Nb7+ Kc6 Bg1 Qd3 Rf2 Qde2 Nd6 Qg8 Nb8+ Kc5 d8N Kd4 Na6 Re3 Rf1 Kc3 Rd1 Kb2 Rd4 Rb3 Rd3 Nd7 Rd5 Ka3 Rd2 Nf6 Ke5 Ng4+ Kd4 Ne5 Qc3 Bf4 Kc5 Qg4 Bc8 Q4e6 Bd7 Qef7 Bf5 Qc2 Nb8 Qd1 Na6 Qe2 Rh6 Bhg3 Qg6 Nd7+ Kc6 Be1 Rh3 Rh4 Qh7 Rh5 Rg3 Rh3 Rg5 Bh4 Rh5 Ne5+
K2nQN1q/5R1n/1br2qb1/1r1P1p1P/3Rr2Q/r3bN2/k1N2BB1/3Nnr2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 c5 h4 a5 b4 g5 b6 a4 h5 a3 b5 c3 b7 f3 Ke3 a2 b6 c2 d5 c4 Kd4 c3 Bh3 f2 Nd2 f1R Ne2 g3 Bd7 g2 Rb1 g1B+ Kc4 a1Q Kb5 g4 Qe1 g3 Nf3 g2 Bb2 c1N Rh2 c2 Bh3 Ra3 Bd4 Qf6 Qh4 Nd3 Nc3 c1R Nd1 Bh6 Rb4 Ne1 Bf2 Be3 Rd4 Nc6 b8N Nd8 b7 Bf5 Kb6 Bg6 Na6 Rc6+ Ka7 Rh6 b8N Rb6 Nb2 Rb5 Nd1 Qh8 Rh1 Nf6 Nd7 Nh7 Ka8 Qb2 Nf8 Qc3 Ra4 Qcf6 Nb4 Kc5 Ra7 Kc4 e5+ Kb3 e6 Bb6 Nc2 Ka2 e7 Be3 e8Q Bb6 Bg3 Bge3 Bf2 g1R Ra4 Rg4 Bg2 Re4 Rh3 Qfg7 Rg3 f5 Ra7 Bf7 Rg4 Rc6 Rf4 Bg6 Rg4 Ba5 Rf7 Qf6 Rf4 Ree6 Rc4 Re4 Rd4 Bb6+
8/b4RKb/1rRQ4/2p1qb2/n1RNq3/1rnRqq2/N1qB1PPk/1Q1r3B w - - 0 1 illegal: Other
KNr4k/3B2nb/2N5/rPq1BN2/3n3N/rRpn1QP1/2R4n/b3qnbQ w - - 0 1 illegal: No possible last move, all moves rejected
RK1Q4/r7/2k1p3/1rrR2QP/2Nr1QQq/2bN1q1r/nPB1qb2/B4n1b w - - 0 1 illegal: Other
7K/nr1Q1N1P/4r1kq/3Bp1q1/2RQ1R1b/2q1q1Pb/R1n1b2n/N3qRB1 w - - 0 1 illegal: No proof kernel
N1Q5/b4bPQ/K1nn2BR/B1n2brN/P1Rq2k1/B7/3Bnpqn/1r4q1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kf6 Kd3 Kg5 Kc4 c5 Kb5 f5 a4 h5 e4 c4 g4 c3 d6 h3 d5 h2 e5 h4 e6 h3 e7 b3 e8Q b2 d7 c2 d6 Nf6 Bd2 c1N Qee2 Rg8 Qg2 Ne2 Qe1 Nc6 Qgf2 Ne4 Na3 b1N Nc4 Nc5 Nb2 Nbc3+ Kc4 Nb5 Rc1 Rb8 Ba5 f3 Bd2+ f4 Qe3 b6 Qd3 f2 Qh7 Rb7 Bg2 f1N Be4 Bg7 Bf5 Bd4 Bg6 Be3 Rc3 f3 Qc1 f2 Rc2 Kf4 g5 Kg4 Rc3 Qf6 d8B Bf5 d7 Rg7 Be7 Nd6+ Kd5 b5 d8B b4 Ba5 b3 Nc4 b2 Nb6 b1Q Na8 Qa1 Qc2 Rb1 Rc4+ Ned4 Ne2 Rg8 Nf4 Ne2 Nh5+ Bd4 Ng3 Qg7 Rg1 h1B+ Rg2 h2 Nh5+ Kf3 Rg1 Bg2 Bf8 h1Q Qc1 Qh2 Rh1 Qb7 Be7 Qg1 Qc3+ Be3 Qch8 Rg7 Qc8 Nh2 Bf8 Nce4 Be7 Ba7 Bf8 Kg4 Be7 Nf7 Ba3 Nd6 Be8 Qb3 g6 Nf1 Nf4 Qg3 Rh6 Nh2 Nh5 Bf3 Bf7 Q3g2 Be8 Rg8 Bf7 Rf8 Be8 Rf6 g7 Rg6 Bf7 Rg5 Bg6 Ne8 Rc3 Nc5+ Kc4 Be4 Bc7 Bc2 Ba5 Bb3+ Kb5 Qb2 Rc2 Qd4 Rc3 Rc1 Rc2 Bf7 Rc4 Rb1+ B3b4 Nb3 Ka6 Nd6 Ba3 Nc5+
N1k2q2/1n3PB1/B2R1BRn/3b3K/bbr1Q1N1/1nQ2p2/b2r1BPq/1b4r1 w - - 0 1 illegal: No proof kernel
b2Q2K1/RNb1rP2/1r1P4/1R1B4/1Bp1r1Qr/1nq3b1/Q1nkqQ2/qr1N4 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 h5 f4 c5 d4 a5 b6 e3 b7 c3 b3 c2 g5 a4 f5 c4 f6 a3 g6 e2 g7 e1B f7 h3 d5 h2 Be3 c1Q Bf4 h4 Be3 a2 Nf3 h3 Be2 Rh4 Nd4 Nh6 g8Q Na6 b8Q+ Bb7 Ke6 Bg3 Re1 h1R Nf5 h2 Qd2+ Qc3 Qg4 Ra7 Qbf4 Qe8 Nd6 Ba8 Bf3 Nf5 Nb7 Nd4+ Ke5 e6 Kf6 Bd6 Kg7 Bc7 d6 e5 Bd5 e4 Qff2 Nc5 Rg1 Qe6 Kg8 Nc2 Qde2 Ra6 Bd2 e3 Rg2 Re1 Rg1 Kb5 b4 h1R Rg2 Ka4 b5 Kb4 b6 Nb3 Rg1 Rd1 Be1 Rd4 Qd2 Re4 Qde2 Qd2 Nc3 Qe7 Nd1 Qc3 Rb1 a1Q Qd2 e2 Rg2 Na3 Qa2 Nc2 Bd2 Bf4 Rg3 e1R Rf3 Bg3 Rf5 Qb2 Ra1 Qf6 Rg5 Re7 Rh5 R1e4 Qgf4 Bb8 Na5 Ne3 b7 Qh6 Bc6 Rb6 Qb1 Rg1 Rc5 Qh5 Bd5 Qe2 Qg4 Nc2 Ne3 Rd1 Be1 Qcd2 Rb5+ Kc3 Ra4 Rh7 Qa2 Rb1 Nd1+ Kd3 Ra3 Qde3 Bb4 Rh4 Ra4 Qa1 Ra3 Bc7 b8Q Rb7 Qd8 Rb6 Nb7 Qed4 Ra6 Qdc3 Ra7 Kd2
3Qq2b/N3P2q/1R1r1rp1/2R2rnB/Pr3Qqk/7B/1Bn1b1rK/N4B1b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 Ke7 Kg2 d5 e4 f5 a4 b5 h4 d3 c4 d4 h5 b3 e6 Kf6 h6 b4 h7 d2 e7 Kg5 e8B f4 c5 g3 c6 b2 e5 b3 c7 d3 e6 f3+ Kh3 g2 Be2 f2 Nc3 f1B B2h5 b1Q Nge2 g1R+ Kh2 b2 e7 Ra5 Nb5 Kh4 Qb3 d1R Na3 d2 Qe6 Na6 Bhf7 Nf6 Ra2 Ne4 Qb6 Nb4 Qf6+ Ng5 Nb5 Nc2 Bc4 Bb7 Bh5 Qe8 Na7 Rf5 Nd4 Be2 c8B g6 Ra3 Bg7 Rc3 Rf8 Nb3 Bh8 Na1 Bd5 Qd6 R8f6 Qf4+ Rg4 Rg1 Bh1 Bb5 Qa2 Rc5 b1R Bb2 Qag8 Rg3 Qg7 Rb3 Qh6 Bd3 Qg7 Rb6 Qgg8 Qc7 Rb4 Bd7 Rg1 B3b5 d1Q Qf4+ Rg4 Bc8 Qdd7 Bd3 Rd1 Bb5 Rdd6 Bba6 Bg7 h8Q Qh7 Qf8 Bh8 Bb5 Qef7 Qd8 Qfe8 Bc4 Bd1 Bf1 Be2 Bb7 Qc8 Bbg2 Qe6 Bh3 Qe4 Qe5 Rg1 Qd4 Qg4 Qf4 Rg2+
7Q/1PB1rQ2/1nb2rQK/1knB2r1/5Prq/bNrp1bQ1/1N1R2n1/2qR4 w - - 0 1 illegal: No possible last move, all moves rejected
B2b3k/QPQP2nr/2n5/N3p3/1BNq1Nrb/2Nb1b1R/qn4qb/1R5K w - - 0 1 illegal: No possible last move, all moves rejected
3Bq3/b5n1/1B1Qn3/NB1r1nnP/bNRn1p2/K1BP1kn1/1R4nQ/3br3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 h4 Ke5 d3 a5 Kd2 g5 Kc3 f5 Kb2 c5 h5 a4 b6 f3 b7 f2 b5 c3+ Ka3 g3 b6 g2 Qf3 c4+ Ka2 c2 Qg4 c3 Qh4 g4 Nd2 Kf4 e5 a3 e6 Nh6 e7 Na6 e8Q Bd7 b8B+ Nc7 b7 Ba4 Rb1 Bc5 Qe1 Qe8 Qhe7 g3 Rb2 Ra5 Rb5 Ba7 Rb1 Rd5 Ngf3 g1N Rb3 g2 Qf6 Nh3 Nh2 g1N Rb1 Nf3 Qfe7 Nd4 Rb6 Ne6 Ng4 Ng7 Q1e2 Ng5 Ne5 Nce6 Bh3 f1B Rb2 Rf8 Qg2 Be2 Qd6 Bd1 Bc7 Ke3 b8B f4 Rh2 Nhf5 Bd8 Rf7 Qh1 Re7 Bg2 Kf2 Ndc4 Kg3 Be3 c1N+ Kb1 Nb3 Ka2 c2 Na5 Nbd4 Nec6 Kg4 Nb4 Kg3 Bd2 Kg4 Bc3 c1N+ Kb1 Nce2 Ka2 Neg3 Bbc7 Ne3 Bb6 Ndf5 Be4 Ng2 Qg1 Nge3 Rhc2 Ng2 Ka1 a2 Qh2 Rd4 Bb7 Rd5 Ba6 Kf3 Bb5 Nh6 Rb1 Nhf5 Kb2 a1N Ka3 Nb3 Rbb2 Nbd4 Bd2 Nc7 Rc4 Re1 Bc3 Nce6
knB2bn1/1RnR1qN1/3r1N2/K1N1Q3/3rP1b1/n1q1r1P1/2q1Np1B/3bQ3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 b4 a5 c4 d5 e4 Kd7 c5 Kc7 g3 Kb7 b6 h5 b5 d3 Kc3 h3 Qb3 d2 Qd1 d4+ Kb3 a4+ Kb4 d3 Qe2 d1N Qf2 f3 Nd2 h2 Nh3 f4 Qg2 h4 Ra2 f2 Nb3 f3 Rb2 d2 Qg1 a3 Nf4 h3 Ne2 a2 Bg2 a1Q Qe1 Nc3 Rf1 d1B Be3 h1N Rb1 h2 Bh3 Ra5 Rg1 Ka8 b7+ Ka7 Rg2 f1Q Bg1 Qc7 Bf5 Ra3 b6+ Ka6 Rb2 Nf2 Rd2 h1R Bh2 Be6 Rd7 Ng4 Rg1 Ne5 Bh3 Bg7 c6 Rh6 Rg2 Qc8 c7 Nc4 Rg1 f2 Bg4 Qe8 c8N Bf8+ Nd6 Nb5 Bf5 Nc7 Bh3 Ne7 Nf5 Qf7 Ng7 Bf5 Bg4 Rd6 Bh3 Ng8 Bg4 Ra2 Bh3 Na3 Ka4 Nc6 b8Q Qc3 b7 Rad2 Qe8 Ka7 b8N Ka8 Qe5 R2d3 Bg4 Re3 Bh3 Nb4 Ka5 Bg4 Nc5 Qc2 Re7 Nba6 Nbd7 Qg2 Nf6 Nb8 Rd7 Qf3 Rf1 Bh5 Be6 Bg4 Bf5 Ne6 Rb7 Nc7 Bc8 Rd4 Bg1 Rh8 Bh2 Rh6 Qd2 Rc3 Nge6 Rd5 Ng7 Rb3 Nh7 Rg6 Nc3 Be2 Rd1 Qfd3 Qe3 Qc4 Rd4 Bd1 Qe1 Rc6 Ne2 Re3 Nf6 Rb6 Bd7 Rb4 Bc8 Q4c3 Rc4 Rdd3 Rd4 Rd2 Rd8 Rd6 Rd7 Rbd4+
kNrn3N/2b3B1/2Nb2rq/1r1R4/1p3nP1/2n3Kb/1P2BN1r/q1QR1Q1q w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 cxd5 Na6 Ra4 Nb4 a6 Nxa6 Ra5 Nb4 Ra1 Na2 Kf2 Kd7 e4 a5 d4 h5 e5 f5 d6 Kc6 e6 b5 d7 Kb7 e7 c5 e8Q f3 g3 h3 d5 c4 d6 h4 Bh6 b4 Bd3 a4 Qg6 h2 Qf7 c3 Qc4 a3 Bg5 c2 Be3 c1B Bc5 f4 Qd4 h3 Qd2 Qh4 Q2e3 Rb8 d8N+ Ka8 d7 Ne7 Bh7 Qh6 Qed2 Rb5 Qc4 Nc3 Nf7 a2 d8N Nc6 Qc2 Bd6 Na3 Bg4 Rb1 a1Q Bd4 Rg8 Qf1 Rg6 Nc4 Bd7 Nb7 Nd8 Bg7 Bc7 Nh8 Be3+ Ke1 Bc5 Nba5 B5d6 Rd1 Bc8 Qc1 f2+ Kd2 Bd7 Nc6 f3+ Kd3 Bg4 N4e5 Be6 Nd7 Bg4 Qg2 f1N Ndb8 Ne3 Qf1 f2 Bg8 Ng2 Bc4 Nf4+ Ke3 Bd7 Kf3 Bf5 Be2 Bd7 Qe1 f1R+ Qf2 Bf5 Rd5 Rd1 Qe1 Rd4 Kf2 Rc4 Qf1 Bg4 Nf3 Rcc5 Nfe5 Bf5 Rg1 h1R Nd3 h2 Kf3 Bh3 g4 Rc4 Kg3 Ba5 Nd4 Rc8 Ndc6 Bac7 Nf2 Na4 Qfd1 Nc3 Re1 Rf1 Qd3 h1Q Rd1 Re1 Bf3 Re5 Qf1 Rh5 Be2 Bg2 Nd4 Rh2 Ndc6 Bh3
N1b1Q2n/Bqbq2bR/1nr2B2/K6P/1NnqB1P1/3pQ1B1/4r2r/1kq3R1 w - - 0 1 illegal: No proof kernel
3b4/N1NQ2R1/b1rn3q/BQKBr1pP/r1n5/kb2P1q1/b2n2N1/2R1N1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Kd6 h4 a5 c4 g5 e3 f5 h5 g3+ Ke2 g2 Kd3 a4 b6 f3 b5 Kc5 b7 Kb4 c5 d5 c6 a3 c7 f4 b6 f2 Ne2 f3 Nf4 a2 Nd2 Ne7 Rh4 Nd7 b8N Rh6 b7 Ra5 Ng6 Nb6 Rh2 g1Q Qe2 Qg3 Nh8 Nf5 Rh3 Qf6 Rh2 Be6 c8N Be7 Nd6 Bd8 Bh3 f1B Nc8 f2 Na6+ Ka4 Rb1 a1R b8Q Bg8 Nf3 Rg6 Kd2 d3 Na7 d4 Qd6 Re5 Rh1 Qf8 Qc7 Qh6 Bg2 Ra3 Bb2 Ba2 Bc3 Rc6 Rb2 Nd6 Rc2 Kb3 Ng6 Ra4 Nf4 Ka3 Qg7 Rc7 Qh7 Rb7 Ba5 Rb8 Rc7 Rb7 Kc1 d2+ Kc2 d1B+ Kd3 Bdb3 Qf5 Rb8 Rg7 Rb7 Qd7 Rb8 Kd2 d3 Kc3 d2 Nc7 d1Q Qc4 Bd3 Kd4 f1N Rg1 Nd2 Rf1 Qe2 Rc1 Qf1 Ne1 Qg1 Bd5 Rb7 Nfg2 Bf1 Kc5 Be2 Qf4 Ba6 Qf2 Rb8 Qb5 Nbc4 Qf7 Rb6 Qfd7 Rc6+
Q1qkn1br/4NBN1/b4bp1/K6R/Bb1r2qB/5n2/2qPQP1B/2rn1R2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 a4 e5 h4 b5 d6 c5 h5 g6 h6 e3 a5 c4 h7 e4 a6 c3 a7 b3 Na3 b2 Rb1 b4 Bh3 c2 Rh2 g3 Be6 b3 Ne2 g2 Rh5 Ne7 Bg4 Nf5 Nf4 g1Q+ Ke2 Nd7 Qe1 Nf6 Nc4 Ba6 Ne6 Qc8 Bf3 Qg4 Ng7+ Kd8 d7 Bb4 Qf1 Rb8 a8B Ne8 Bd5 Rb6 Bg8 Rd6 Bf7 Rd4 Ra1 b1B Bb2 c1B Qd1 Rd6 Be5 b2 Bh2 Ba2 Rb1 Rd3 Ne5 B2c4 Qe1 Rd4+ Kd1 e2+ Kc2 e3 Bc6 Ba2 Qd1 e1R Qe2 B2c4 Ba4 Rh1 Nd3 Rg1 Nf4 Re1 Nd5 Rd1 Qf3 e2 Ne7 Rf1 Qd3 Be6+ Qc4 e1N+ Kb3 Ne3 Ra1 Nd1 Rb1 Rd5 Qe2 Nf3 Ra1 Bc3 Ka3 Bf6 Rb1 Rd4 Ra1 Bec4 Kb4 b1Q+ Ka5 Qc2 Rb1 Rf8 h8Q Ba3 Ra1 Nb2 Rd1 Rh1 Rf1 Nd1 Qh6 Bc5 Qf4 Rh8 Qfe4 Bd6 Qa8 Bb4+ Kb6 Qa2 Bd5 Rf4 Rg1 Nc3 Ra1 Rd4 Bg8 Ba3 Ka5 Qc2 Bd5 Bcb5 Ba2 Bc4 Re1 Bg8 Ra1 Rb1 Bf7 Rb2 Rc1 Rb1 Rf1 Nd1 Bg3 Rc1 Bh4 Kc7 d8B+ Kd6 Bb6 Bc5 Ba7 Kc7 Bb8+ Kd8 Bh2 Bb4+
B1nnrqB1/7n/RBb1P3/5Kbr/N1q3Q1/1b1kpP2/q3r1n1/QRB3N1 w - - 0 1 illegal: No proof kernel
7R/Nq2NkBn/q3p1r1/4q1P1/3Qrb1B/3n1B2/2b1K1Pb/Rn1rQnB1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 f4 c5 d4 h5 a4 b5 f5 e3 f6 c3 a5 c4 a6 h4 d5 c2 d6 b3 d7+ Kf7 a7 e2 Bd2 c1B Ra6 b2 Re6 c3 Rd6 b4 Qa4 b3 Rd3 c2 Qa3 h3 Rg3 h2 Qa5 Rh4 Qc3 Na6 Rg4 Qa5 d8B Nc5 Ra4 Qa6 Nf3 Re4 Na3 b1N Bb6 b2 Nd4 Bf5 Nc6 e6 Nb5 Bd6 Qd4 Bc7 Bb4 B1f4 Ne7 c1R+ Kf2 Bh7 Be1 Rd1 Ra1 Nd3+ Kf3 Bce5 Bh4 e1Q Be2 Rb8 a8Q Bc7 Rf1 h1N Na7 Ng3 Rh1 Nf1 Qc6 Bh2 Qc1 Bcf4 Bc5 Qea5 Qcc3 Qc7 Qe1 Qe5 Bb6 Nh6 Bc5 Rg8 Bb6 Rg6 Bc5 Kf8 f7 Ng8 Bb6 Kg7 f8B+ Kf7 Bg7 Nf6 Bc5 Nc3 Bb6 b1Q Bc5 Qbb7 Bb6 Nb2 Kf2 Nb1 Bf3 Ne3 Bc5 Nd3+ Ke2 Nf1+ Qe3 Rd4 Ng8 Nb4+ Kf2 Rh6 Bg3 Bc2 Ne7 Nd3+ Ke2 Rg6 Bf2 Bhg3 Rh8 Bh2 Bh4 Rc4 Qe4 Nh7 Bg1 Ne3 Qd5 Re4 Qd4 Nf1+
1qb1R1N1/3r2B1/2Bp1Q1K/B4q1n/R1r1P3/bBN1nQ1b/P2kr1nr/6q1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 c4+ Ke4 h4 g5 h6 f5+ Kh5 b5 e3 b3 c5 f3 c6 f4 c7 f2 h7 d3 Bh3 f1B Kg6 b2 h5 g4 h6 d2 Bg2+ Kd3 Na3 b1Q Bb2 b4 Bd4 f3 Ne2 f2 Rg1 g3 Bc5 b3 Ba7 b2 Nc3 Nf6 Qh5 d1R Nab5 Nd5 Ne4 Ba3 Bb6 Ra4 Nbc3 Rc4 Nf6 Kd2+ Kg7 d6 Ng8 Nf4 Ba5 Nd7 Bc6 g2 Qf3 Qf5 e4 Nf6 Rc1 b1R Rh1 Be6 c8B Re1 Rh2 g1Q+ Rg2 Bf7 Be6 Rb7 Rb1 Qe8 Rb4 Qb8 Ra4 Re2 Rg3 Ng2 Rg6 Rc5 Bb3 Rc4 Rg5 Rd7 Rh5 Qd5 Re5 Be6+ Kg6 Bg4 Re8 Nh5 Nf6 Rf8 h8Q Qdb5 Qg7 Rh8 h7 Qf5+ Kh6 Ngf4 Bb7 Bfh3 Ng8 f1N Bc6 Ne3 Qf6 Nfg2 Ne7 Rf8 h8B Rf7 Ng8 Rfe7 Bg7 Re5 Bf8 Rb5 Bd1 Rb2 Bb3 Rb1 Bb7 Rg7 Re6 Qf4+ Qg5 Qf1 Re8 Bc8 Re6 Qf5 Re8 Rd7 Qf6 Qf2 Bc6 Rh1 Bg7 Rh2 Ba8 Qe1 Bc6 Qg1
3Q2Rn/2b1q2P/Qr3k2/nr2p2B/1BP4R/1bK5/1QnqQn2/NN1b1qr1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 a5 f4 d5 b4 g5 f5 e5 b6 e3+ Kd3 a4 b7 e2 f6 e1Q h5 a3 c3 g3 h6 g2 h7 g4 b5 g3 b6 a2 Qc2 Nc6 b8Q Be6 b7 Ra5 Nd2 Nh6 Ba3 Bd6 Nc4 Bc7 Rh3 Qe7 Be2 Rb5 Rh5 Na5 Qa8 Rb8 Nf3 g1Q Nfd2 g2 Nb1 Qgf1 Bb4 g1R Ne3 Qef2 Kd2 d3 Qa6 d4 Rh4 Bb3 c4 Kg6 Qd1 Nf7 Nc2 Nh8 f7+ Rb6 Qe1 Kf6 Qd1 Q2g2 Qe1 Qd5 Bh5 Qdd8 Qe2 Qdd7 Nba3 Qdd8 Rd1 a1N Nb1 Qdd6 Ne1 Nc2 f8Q+ Nf7 Qd8 Nh8 Kc1 d2+ Kb2 d3 Kc3 Nd4 Rc1 d1B Nc2 d2 Na1 Qd7 Qd3 Nc2 Qe2 Ra8 b8Q Qd5 Qbb7 Rb8 Qc6+ Qd6 Qa4 Rb5 Qa2 R8b6 Qb2 Qf2 Qa7 Rg6 Qf1 Bg4 Qh3 Rg8 Rg1 Qf1 Qd3 d1N+ Kd2 Qd7 Qa6 Nf2 Kc3 Bd1 Qe2 Qd6 Rg3 Rg7 Rgh3 Rg2 Rg3 Rg1 Rg8 Qd2+
1nr4R/2kN3b/6PB/bp2b1r1/2NbQ3/nN1b3R/P3rK1n/NBbq3Q w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kd7 d4 e5 f4 h5 g5 c5 d6 b5 f5 h3 f6 c4 f7 h2 d5 c3 Nf3 e3 Bd2 e2 Nh4 e4 Qc1 c2 Bc3 b3 Qb2 c1B Bd4 Bg7 f8Q Be5 Qf3 Nh6 Ng6 h4 Qc2 b2 Nd2 b1N Nc4 h3 Kf2 Na3 Be3 Rg8 Qa4 Bb7 Nf8+ Kc8 d7+ Kc7 Rb1 Rg6 Rb3 e1B+ Ke2 B1c3 Kf2 Rg7 Bd3 Bcd4 Bb1 Re7 g6 Ng4+ Kf1 Bc6 Bh6 e3 Rc3 e2+ Ke1 Re8 Qc2 Re6 Qce4 Re7 Rf1 h1B d6+ Kb7 Rf2 Bd5 Rh2 Bg2 Rh1 Nh2 Re3 Bf1 Kf2 Ra6 Qg2 Rc6 Qgf3 Bg8 Qh5 Qe8 d8N+ Kc8 d7+ Kc7 Qhf3 Bh7 Nb7 Qd8 Nc5 Ree6 Nb3 e1B+ Kg1 Be2 Na1 Ba5 Kf2 Bd3 Qg2 Qc8 d8N Qd7 Qf1 Re8 Nb7 Rc8 Qe2 Rc5 Qh5 Qg4 Nd7 Qd1 Qhh4 Nf3 Nf8 h2 Bf4 Bd6 Kg2 Bg8 Nd7 Rh5 Nbc5 B6e5 Ncb3 Rf5 Rf1 h1R Kf2 Rh3 Rh1 Rg3 Qh3 Rh5 Qg2 Rf5 Rh4 Nh2 Rh8 Bh7 Qg1 Rh5 Bh6 Rhg5 Qgh1 Bdc3 Re1 B3b2 Rg1 Re3 Rg3 Bbd4 Rh3 Re2#
3Rnrq1/R1N1B1n1/1b1P1rR1/Q2pQ1rk/3P1rrN/8/2bBR2K/bnr5 w - - 0 1 illegal: No proof kernel
2Nb1n2/1P4bb/kqqRBQ2/3rrNB1/P4pQn/b1B4B/b2b1R1b/3K4 w - - 0 1 illegal: No proof kernel
1RBk1q2/2b1r2b/NB3n1R/2b1n2n/K1n1P1RQ/2P5/p2N1QRr/1nr1b3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 g5 e4 d5 h4 f5 b6 a4 b5 d3 Kc3 a3 Kb3 f3 h5 a2 h6 g3 b7 d4 c3 d2 h7 f2 b6 d3 Rh3 g4 Rh2 g2 Rh3 g3 Qc2 d1N Na3 d2 Nb5 f4 Rh5 f3 Qb2 Ra7 Qc2 Nb2 Rc5 d1R Nh3 g1B Bf4 g2 Rg5 Bh2 Rd5 g1B Bc7 Bc5 Rd2 Rc1 Ng5 Bf5 Bh3 f1N Rg2 f2 Nf3 Ng3 Nd2 Nc6 b8Q f1N b7 Nf6 Bb6 Ngh5 Qg3 Ne5 b8R Bgf2 Qh4 Be1 Nc7+ Ke7 Rg4 Nbc4 Na6 Qf8 Ka4 Bg6 Rg2 Rc7 Bc8 Kd8 Qd1 Bf5 Qf3 Bhg3 Qf2 Bf4 Nf3 Nfd2 Rg4 Nb1 Nd2 Rg8 h8R Bh7 Rg2 Rg3 Rg8 Rh3 R8g4 Rh2 Ba5 Nba3 Rab1 Bg3 R1b6 Nb1 Re6 Bf4 Bb6 Bg3 Ba7 Re7 Rc6 Nf3 Bb6+ Bc7 Re6 Nfe5 Rc6 Ng8 Rh6 Ngf6
brb1nR2/3NN3/4n3/qQb1P2P/Bp4Q1/1bRrKRb1/4RBq1/1q1b1k2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 d4+ Kc4 h5 c5 a5 g5 a6 b5 d6 f5 d5 b3 d7 g3+ Kf3 b2 d6 b4 a7 g4+ Kg2 Na6 Qa4 Nf6 Nh3 f3+ Kg1 g2 Kf2 g1B+ Ke1 f4 Kd2 g3 Qd1 g2 Ra3 f2 Ra1 f3 Ng5 Rb8 a8Q Nc7 Qe1 Nfe8 Rh2 Ne6 Ra2 Qa5 Rh3 Bh2 d8R g1Q d7 Bg3 Ke3 Qg2 Nc3 b1B Nd5 Bc2 Qc6 Bb3 Ne7 Rg8 Nh7 Rg4 Qd1 Rd4 Qb6 Kc3 Qb5 c4 Nc6 Bc5 Ne7 Qh1 Bg2 f1B Nf6 f2 Bc6 Bg2 Qg1 f1B Rb2 Bgd6 Rf3 Bg3 Rd2 Qh3 Rd3+ Kc2 Rc3+ Kd1 Bd2 Qh2 Be1 Bh1 Bf2 Qg2 Rc2 c3 Rb2 Bb7 Rc8 c2 d8R Ba6 Rc7 Bc8 Nd7 Rd5+ Ke4 c1Q e3 Rd3 Rc2 Qb1 Re2 N8g7 Rf8 Ne8 Kf5 Rd4+ e4 Qba2 e5 Qb2 Qb6 Qba1 Ba4 Qb1+ Re4 Kd2 Qb5 Be2 Rc6 Bed1 Rc7 Ba7 Rcc3 Bb6 Qh2 Ba7 Qh3 Bc5 Qg4 Qd3 Be3+ Ke2 Bf2+ Kf1 Rf4 Qc4 Re2 Qcd5 Rff3 Qc4 Rce3 Qc1 Rc3 Qb1+ Rcd3 Rd5 Ke4 Rd4+ Ke3 Qh2 R3f7 Ba8 Rf3 Qg2 Rc3 Rd3#
KRnn1n2/2n4B/1N4p1/r2R3r/4NRP1/P1Qr2b1/BR1nq1k1/b1Q2b1b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Bb2 h4 Bd4 exf4 Bf2 Bf5 Bg3 hxg3 Qb3 Be6 Qd1 Bc8 e4 Ke7 Ke2 Kf6 Kd3 Ke5 Kc4 c5 Kb5 f5 h4 c4 h5 c3 d6 f3 d4+ Kf4 d7 g2 h6 Kg3 a3 f4 e5 g6 d5 f2 e6 f3 d6 b3 h7 c2 e7 c1B e8B b2 Qe2 Ra5+ Kb4 b5 Kc5 b4+ Qb5 b3 Kd5 Bf4 Ra2 Na6 Kc6 Bg7 Rh4 Nh6 Qb4 Qe7 d8R Bb7+ Kb6 Nf7 Ka7 Qe2 Nc3 b1R d7 b2 Rc8 Nd8 Rh5 Rd1 Qc4 b1N Na4 Ba1 Rb8 Rd3 Rb2 Nd2 Qc1 Nc4 Rd5 Nd6 Nh3 g1N Ng5 Nh3 Nb6 Bc6 Bg2 f1B Bf7 f2 Bg8 Kh2 Ne4 Bg3 Rf5 Ng5 Rf4 Nge6 Bh1 Nf8 Bf3 N8b7 d8R Nc8+ Ka8 Kh3 Rd5 Nd8+ Rb7 Qe3 Bd1 Qe2 Bb3 Kh2 Ba2 Kg2 Bf7 Rg8 h8Q Rg7 Qd1 Rh7 Bg8 Rh5 Bh7 Kh3 Nd6 Bg2 Rc5 f1N Qc3 Nd2 Qdc1 Bf1 Re5 Bf3 Rd5 Bh1 Ne4 Kg2 Rb8 Nc7#
br5R/1r2Nn2/Nb2Pbp1/R1qn2nP/r1BknK1R/8/Q2b4/R1BQb3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Kd6 b4 Ke5 h4 f5 b6 a5 b5 c5 b7 a4 d3 a3 h5 g6 b6 f3 Ke3 f2 Rh2 f4+ Ke2 a2 Bh3 f1R Kd2 f3 Ke3 g3 Na3 g2 Bf5 f2 Qd2 c3 Nc2 c4 Rh3 Nc6 b8Q+ Qc7 b7 Bc5+ Kf3 Nf6 Bb2 Bb6 Bd7 Rb1 Rh4 f1N Ne2 Ra4 Qc1 Nd8 Nb4 Ne3 Qa7 Nf7 b8R Qc5 Ra8 Bb7 Ng3 Kd4 Bb5 g1N+ Kf4 Rb8 e5 Nf3 e6 Ne4 Qd1 N3g5 Bc1 c2 Na6 c3 Bc4 Rb3 Bb2 c1B Ba3 c2 Nf5+ Kc3 d4 Bd2 d5 c1B d6 Be1 d7 Bcd2 Ne7 Kd4 d8R+ Bd5 Bc1 Rb7 Rb1 a1B Rh8 Bb2 Raf8 Rb8 Ra1 Ba8 Rc8 Bd8 Rc6 R3b7 Rb6 Bc3 Rb5 Bb6 Ra5 Bb2 Ba2 Kd3 Bd5 Bf6 Bc4+ Kd4 Nc7 Rb4 Rb5 Nf3 Qa2 Ra4 Ra5 N3g5 Na6 Nd5+
8/1Rn2b1r/Nq2p3/1n2nB1b/k2bP3/Nbr2R1Q/B1bKP1Qq/Nb3N2 w - - 0 1 illegal: No proof kernel
1N2B2r/1n1Nb3/2pb2BK/rk1bRQ2/1P2bn2/1RnP1n2/1B4r1/3qQBn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 e4 a5 b4 h5 g4 a4 e5 a3 g5 a2 g6 c3 b6 Kc6 e6 c2 e7 h3 e8B+ Nd7 g7 h4 b7 h2 b8Q h3 Bd3 Nf6 g8B Ne4 Qe1 Be7 Qh4 Bb7 Qc8 Nc3 Qg3 Ra5 Bb2 c1N Bgc4 N1e2 Bh5 Nc5 Kf2 f3 Ke3 f2 Qb8 f1R Bcf7 Nf4 Bhg6 Rf2 Ba6 Rg2 Qe1 Ba8 Qa7 Nb7 Na3 Bd6 Rb1 a1B Bd3 Qd7 Nc4 Kb5 Ne2 Be7 Rg1 h1B Qb8 h2 Qc8 Qd8 Ng3 Qd7 Bf1 Qd5 Nh5 Qf3+ Kd4 Qd1 Ke5 Rf2 d3 Nfd5 Qd8 f4 Kf5 f3 Qc8 Nf4 Bg2 Nd8 Nf6 Nce2 Kg5 Bd5 Be5 c6 Qe6 Nb7 Bh3 Bd6 Rg2 Ng1 Rb3 Rc2 Qf5 f2 Bd4 f1N Be8 Nd2 Re2 Bg2 Nb6 h1N Be5 Ng3 Bc3 Bh1 Bf1 Be7 Re4 N3e2 Be5 Bd4 Re3 Bdc5 Bb2 Bcd6 Re5 Rf8 Kh6 Nc3 Nfd7 Rg8 Nc5 Bhe4 Na6 Ndf3 Nd7 Rg2 Nab8 Rh8+
2R4b/1NQR1r1n/PnNn3n/3Q1BB1/1Q3Q1q/4Krr1/4p1bP/n1k3qn w - - 0 1 illegal: No possible last move, all moves rejected
1b1B2Q1/2Q1PB1q/2K2B2/1N3R2/qrn1r3/q1P2R1p/N3q1B1/1q1nqbkr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 Kg4 b4 Kg3 e4 Kf2 g4 h5 c3 a5 e5 f5 e6 f3 g5 h3 g6 f4 b6 d3 b7 d2 g7 h4 b5 a4 b6 a3 Bg2 h2 Bf1 a2 Qa4 d1Q+ Nd2 h3 Qb4 Qa4 Nc4 Nf6+ Kd4 d5 g8B Ng4 Ba3 Qe7 Bd3 Rh4 Bg6 Ne3 B6h7 Nd1 Nd6 Nc6+ Kc5 d4 b8Q d3 b7 d2 Bd3 Ne5 Qb2 Qh7 Be4 Nc4 Qc7 Rb8 Bf7 Kf1 Qb5 f2 Qe8 f3 Ne2+ Kg2 Rc1 a1Q Rf1 h1R e7 Bg7 Bb4 Q1a3 Nb5 Be5 Kc6 Be6 Bd5 Re4 Ba5 Bf5 Qg8+ Bg3 Re1 f1Q Rb1 f2 Nc1 Qg1 Re3 f1Q Rf3 Qe2 Na2 Qge1 Bb6 Kh2 Bd4 Bg4 Bf6 Kg1 Rf5 Bf3 Rb4 Bg2 Rf3 Ra8 b8B Bf1 Rb1 Ra7 Rb2 Rb7 Ba7+ Nf2 Bb6 d1Q Rd2 Qb1 Rd4 Re3 Rdf4 Nd1 Rf5 Rb8 Qcc8 Rb7 Bd8 Re4 Qc7 Qa7 Nd6 Rb4 Nb5 Q7a4 Re3 Rf4 Bg2 Re4 Ref3 Bf4 Qb7 Bb8 Qd7 Qg6 Qc7 Qh7
1rq2bB1/B2Pr2N/RnQ3q1/3bQr2/Qp2rNr1/nn1R1rP1/1K5k/Q7 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Ke7 e4 Kf6 d4 Kg5 Kd2 h5 Kc2 b5 e5 f5 e6 c5 e7 b3+ Kc3 h3 e8Q Kh4 d6 Kg3 d5 h4 a5 b2 a6 b4+ Kc2 h2 d7 c4 a7 h3 d6 c3 Bd3 f3 Bd2 f4 Bf1 f2 Na3 b1N Qe3+ f3 Qe8 Nc6 Qe4 Rb8 a8Q Rh4 Qee2 Re4 Bg5 Nf6 Nb5 Na3+ Kb3 c2 Qa5 c1R Nd4 Nd5 Ne6 Bb7 Kb2 Nb6 Nf4 Rcc4 Qda4 Qc8 d8Q Nd4 d7 Nb3 Qc7 Bd5 Qcc6 Re7 Qe5 Re4 Bc4 f1R Ra2 f2 Nf3 Rg1 Bh6 f1R Ng5 Rf3 Nh7 Rgf1 Rg1 h1R Qa7 Kh2 g3 Rg7 Ra1 Rg4 Rd1 Rfe1 Rd3 R1e3 Ra1 Rhf1 Ng6 Ree1 Be3 Rf5 Nf4 Rf3 Qg7 Re7 Bd4 R1e4 Q7a5 Na8 Ba7 Nb6 Ra2 Kg1 Qgf6 h2 Qe5 h1Q Qa6 Qh6 Q6a5 Qg6 Qa6 Re1 Q6a5 Be4 Bg8 Kh2 Qac5 Qg5 Qc1 Nb5 Qa5 Qg6 Qa1 Bd5 Ra4 Na3 Qab5 Rff7 Ra6 Rf5 Qa4 Re4
n1Rn1bb1/bk1p1PQq/5nB1/n2R1Q2/6BK/r2r1B1P/n2n4/1NB2q1N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 a4 b5 c4 e5 f4 g5 Kf2 g3+ Kf3 g4+ Kg2 b3 a5 b2 f6 b4 f5 b3 c5 e4 c6 e3 c7 d3 a6 d2 a7 e2 Qe1 d1N Qf2 e1Q Ra6 Nc6 Qe2+ Qe7 Na3 b1N Qa2 b2 Ne2 Bb7 c8B Kd8 f7 Kc7 f6 Nh6 Qb3 Ne3+ Kg1 g2 Ng3 Nd5 Qb5 Nd2 Nh5 b1N Qe2 Nbc3 Ra5 Nb6 Qf2 Na2 Rd5 Na5 Ng3 Ba6 Bb7 Bc4 Bc6 Kc8 Ba4 Kb7 Qf5 Qd1 Kf2 g1N Bh3 Ne2 Bc2 Nf4 Rg1 Nh5 Nh1 g3+ Kg2 Rh7 Bg4 Qf3+ Kh3 g2+ Kh4 Qf1 Nb1 Rg7 Be2 Rg3 h3 Rd3 Bg4 Qe4 Qe6 Qh7 Qf5 Bc5 f8Q Nf7 Qg7 Nd8 Rd6 Bg8 Rd5 Bf8 f7 Qf3 Re1 g1B Re7 Qf1 Re8 Ra3 Be4 Rc8 Bd3 Rcc3 Be4 Rd3 a8B+ Ka7 Bc6 Na8 Bef3 Bb6 Ba4 Kb7 Bc2 Ndc6 Rd8 Ba7 Rc8 Nd8 Qfg5 Re3 Bg6 Red3 Qf5 Nf6+
2n2qQ1/1P4Bb/q3R1P1/3QNn2/k3rqq1/1N1B2rp/2Kb2qq/2b1BBR1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 a5 c4 f5 g4 h5 e5 f3 c5 h3 g5 f2 b6 Kc6 b7 h4 e6 d3 e7 Kb5 e8B+ Nd7 b8B a4 c6 a3 c7 a2 Ba3 h2 Kc1 h3 Bh5 d4 Qe1 f4 Bf7 f3 Bc4+ Ka4 b5 d2+ Kb2 d1Q b6 d3 b7 d2 Bfd3 f1Q Bf5 f2 Bh7 Qde2 Bd5 d1Q+ Qd2 Bh6 Bd6 Qg2 Bd3 f1Q Bg6 Nb6 Bd3 Qdf8 Nf3 Bf5 c8Q Ne7 Rg1 h1Q Bb4 Rg8 Be5 Bh7 Bg7 Qhh2 B5c4 Nf5 Ne5 Qff4 Qb8 Qdf1 Kc2 Qeg4 Qd8 Nc8 g6 Ra5 Bc3 Rb5 Qd5 Rb3 Qf2 Ra3 Nd2 Rh8 Rc1 a1B Nb3 Bb2 Re1 Bc1 Qg8 Bd2 Qd4 Bg5 Qdd5 Qfe2 Nf7 Qe6 Bf1 Qa6 Re6 Bh6 Bce2 Bc1 Be1 Bd2 Nd4 Rg3 Bd3 Bg5 Ne5 Bh6 Qf7 Bg5 Nb3 Rg8 Bf6 Rg7 Qg8 Re7 Bh8 Qd4 Nf7 Ba5+ Re2 Bc1 Bg7 Bad2 Re3 Qdf4 Re5 Re6 Re3 Rb6 Re6 Rb4 Ne5 Re4
4q1Q1/RKr2qq1/Nb1b2N1/1q2bQ2/bN2p1Pq/NkP3R1/3rB3/2nnB3 w - - 0 1 illegal: No possible last move, all moves rejected
1R2b2k/r2n2bB/NK2BQ2/1b2B2p/P1rRrqP1/8/1NBq1bb1/3nr2Q w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 c4 Kg7 f4 e5 g4 d5 a4 b5 g6 h5 f5 b3 c5 b4 c6 d3 Ke3 b2 c7 b3 Nf3 d4+ Kd2 e3+ Ke1 e2 Kf2 e1R Be2 d2 Nh2 d3 Ke3 e4 Rg1 Qg5+ Kd4 e3 Ra2 Bd7 c8B Be8 Nc3 b1B Be6 b2 Nf1 Nd7 Ng3 Qf4+ Nge4 Ra7 Rf1 Rh6 f6+ Kh8 f7 Ngf6 Rf2 Bg7 f8Q+ Ng8+ Qf6 Ne7 Ra3 Nd5 Rb3 Ba2 Rf3 b1R Bb2 Rc1 Rb8 Bc4 Bf1 e2 Rg3 Qf3 Nc5 Bb5 Na6 Ne3 Bg2 Qf1 Be4 Qf4 Rh3 Rc2 Qb1 Rcc1 Nd1 Rcc7 Bc3 Rc6 Nb2 d1Q Rf3 d2 Rg3 Qc1 Qa1 Nd1 Rd3 Qc2 Kd5 Rc4 Be5 Rh7 B4f5 Re4 Rd4 Rc7 Qb1 Rc4 Qc1 Rg1 Kd6 e1B Qb1 Bf2 Qa1 Nc5 Kc7 Rge1 Kb6 Qc1 Qa3 Qc2 Qf3 Qd3 Qh1 Nd7+ Kb7 Nc3 Ka7 d1B Kb7 Qdd2 Ka7 R4e3 Bc2 Re4 Kb7 Bf3 Ka7 Nc5 Kb6 Bg2 Qh3 Nd1 Qe7 Bf6 Qh1 Rf7 g7+ Kh7 g8B+ Kh8 Bh7 Bg7 Qd8 Ra7 Qf6 Nd7+
1n2b1n1/Qrb3NQ/N1R3pq/1k4B1/2q1KP1r/nnb4R/b2R1R1P/3b1B2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 b4 d5 c4 Kd7 f4 e5 b6 Kc6 b7 a4 c5 d3+ Ke3 a3 Qb3 g3 Qd1 d2 Be2 g2 Bf1 d4+ Ke2 d3+ Ke3 g6 Qb3 d1B Nc3 a2 Na4 d2 Qf7 Rh4 Ba3 Qd5 Qh7 Ra7 Nf3 Bd7 Ng5 Bb3 Rd1 a1N Ne6 Qc4 Ng7 Kb5 c6 Bd6 c7 Ba2 c8R Nb3 Rc6 Be8 Nc5 Bc7 Bb2 g1N Ba3 Ne2 Na6 Nc3 Rg1 Nb1 Rg2 Na5 Rf2 Nb3 Bb2 Na3 Ba1 Nd7 b8R+ Rb7 Rd8 Nb8 Rc1 d1B Rdd2 Ka4 b5 Ka5 b6 Ka4 Rfe2 Kb5 Kf2 e3+ Kf3 Qe6 R1c3 e4+ Kg3 Qc8 Rf2+ e2 Bb2 e3 Kf3 Qh3+ Ke4 Qc8 Rcd3 e1B Bf6 e2 Bg5 Qh3 Rdc2 Bc3 Rcd2 Ra7 b7 e1Q+ Be2 Qg1 Bf1 Qgg4 Rg3+ Qe2+ Re3 Nd7 b8Q+ Rb7 Qa8 Nb8 Qa7 Qc4+ Qd4 Qg4 Rh3 Qh5 Ke3 Bc2 Qa7 Qh6 Kf3 Bd1+ Ke3 Bd4+ Ke4 Bc3+
5kn1/1b1qq1r1/nR3qpN/P1N2r2/1Q2Q1N1/Rr1NK1P1/4Br2/1Bb1r1q1 w - - 0 1 illegal: No extended proof kernel
B1kN1n2/qR2B1Q1/2r1RP2/1Q1Nn3/b4N1r/3nN1K1/1pP3nb/1qrrr3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 g4 b5 a4 e5 f4 d5 Kf2 Kd7 g5 h5 a5 h3 g6 e4 a6 b3 g7 h2 a7 e3+ Kg3 d3 f6 d2 f7 b2 f5 b4 f6 b3 Be2 h4+ Kg2 h3+ Kg3 d4 Kf4 d3 Ra4 Nc6 Ra2 Bc5 f8Q Nge7 g8N Qc7+ Kg4 Rh4+ Kf3 Ng6 Qe1 d1R Qb4 d2 Bf1 e2 Ne7 e1R Nd5 Nce5+ Kg3 Qb7 Qh8 Nf8 Na3 b1Q Ne2 Bg1 Nc4 b2 Qb5+ Kd8 Ra6 Bd7 Re6 Rc8 a8N Qa7 Nce3 Rc6 Qg7 Kc8 Nef4 Rb6 Qe2 Ba4 Qb5 Rc6 Bg2 Rb6 Nb4 Rh5 Re7 Rf1 Ne6 Bf2+ Kf4 Rh7 Rg1 h1N Qg3 h2 Nac7 Rh4+ Ng4 Bc5+ Bf3 Nf2 Nc6 h1N Ncd8 Rde1 Ba8 Re3 Nd5 Rc6 Qg2 Ng3 Rf7 Nf5 Rb7 Ned7 Rh1 Bd4 Rh3 Re2 Re3 Bc5 Re4 Ne3 Kf3 Rfh1 Nef4 Nd3 Qg3 Ng2 Re6 Bf2 Nge3 Rf1 Qg4 Bg1+ Kg3 N7e5 Qg8 d1R Bd2 Rc1 Bb4 Rfd1 Be7 Ree1 Qg7 Bh2+
3B2R1/3rb2N/1BKQPbB1/1R3qP1/1q1nnqB1/k1p5/2b2bq1/bQ1N3r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 b4 f5+ Ke5 c5 d4 h5 e4 a5 g4 a3 g6 h4 d5 a2 g7 h3 g5 a4 d6 a3 Kd5 h2 d7 f3 e5 f2 Bd2 f4 Be2 f1Q Bh5 c3 Qc1 Ka4 b5 c2 b6 c4 b7 f3 Ne2 f2 Ng3 Qa5+ Ke6 Be7 Bf3 Nc6 b8Q Ra7 Bf4 Qb4 Kd5 Nd4 d8B Bf5 e6 Rd7+ Qd6 Kb3 Qe1 c1B Be3 Bc2 Bg4 Rh6 Rg1 h1Q+ Ne4 Qhg2 Nc3 Rh1 Nd1 Bb2 Rb1 a1B Rc1 a2 Rb1 Qh3 Nf6 Ka3 Nh7 Bc3 Rg3 Qfg2+ Rf3 f1Q Bg1 Qhg3 Qe4 Qff2 Rf8 Qgf4 Re8 Be1 Rf8 Nf5 Kc6 Nf6 g8B Bb2 Bf7 a1B Rh8 Qf2f3 Bd4 Bf2 B4b6 Bbd4 Bfh5 c3 Rg8 Qd3 Bg6 Qdf1 Qf3 Ne4 Qd3 Bdf6 Rb2 Bb3 Qb1 Qd3 Re2 Bc2 Rd2 Qdh3 Rd5 Qd3 Rb5 Nd4+ Kd5 Ne2+ Kc6 Qdh3 B4h5 Qhf5 Bg4 Nd4+
n1r2b1R/1qQ5/1P1QQNr1/1krQ1rnB/3P2n1/K4n2/Nqp2R1B/3b2r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 d4 f5 Kd2 a5 Kc3 c5 b4 h5 Kb2 c3+ Ka2 f3 g4 f2 b6 Kc6 e5 h3 b7 h4 g5 c2 e6 a4 g6 h2 g7 c4 e7 c3 e8Q+ Qd7 Na3 h3 Nb5 a3 Qd3 f4 Qh5 f3 Qg5 Na6 b8Q Nc7 Qdd2 Ra6 Qa7 Nf6 g8Q Ng4 Qde3 Na8 Qb3 Qb7 Be2 f1R Bd1 f2 Bb2 c1R Nc7 c2 Nd5 Kb5 Bf3 Rg6 Qd8 Rce1 Qf4 Re5 Nf6 Rc5 Qe6 Rhg8 Kb3 a2 Ne2 Bd7 Rc1 a1Q Qfd6 Rg1 Rb1 f1N Bc1 Bc8 Qa2 Nd2+ Ka3 Rf1 Q8c7 Rf2 Bg2 Rff5 Bf3 Rh8 Rf1 h1N Rf2 h2 Rb2 Qb1 Qad5 Ng3 Rb3 h1R Re3 Ne5 Bh5 Nge4 Rh3 Ndf3 Bf4 Neg5 Nc1 Ng4 Na2 Rg1 Bg3 Bd7 Bh2 Bc6 Q5e5 Be4 Q5d5 Bd3 Rh4 Be2 Bg3 Bd1 Bh2 Bh6 Rh3 Rc8 Rh4 Ne3 Bg4 Bf8 Rh8 Qa1 Bh5 Ng4 Bf4 Nb6 Bh2 Ka6 b5+ Ka5 Qcf7 Na8 b6 Kb5 Qfc7 Qb2+
1bQ1b1r1/2BrRn1r/p2b4/Q1B2Rq1/PR2qNb1/K2P1k2/1r6/b4nRN w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 c4 Kd7 h4 Kc6 f4 e5 a4 b5 f5 g5 h5 g3 h6 a6 f6 g4 f7 b4 h7 e3 Qe2 e4 Kd1 b3 Qf2 b2 Kc2 e2 Kb3 e1Q Nc3 b1B Rh4 e3 Rh1 e2 Ra3 Qg5 Nd1 Bg6 Kb4 Nd7 Rc3 Ra7 Ba3 Nh6 Kb3 Nf6 Rf3 Nh5 Re3 Rd7 Nh3 g1B Qf5 g2 Re7 g3 Ndf2 Bh2 Nf4 g1B d3 g2 Bb4 Ng3 Ka3 Nf1 Ba5 Bg7 f8R Nf7 Bc7 Ba1 Qe5 Rg8 h8B Rg7 Qf5 Rh7 Bd4 Bg3 Be3 B1h2 Rg1 Bh5 Nh1 Qb4+ Ka2 e1R Bd4 Qb7 Ka3 Rb1 Qe5 Bg4 Qe1 Rb2 Qa5 Rd5 Be3 Bcd7 Bf2 Be8 Be3 Nh6 Rf5 Rd7 Bd4 Nf7 Bf2 Qa8 Be3 Kb7 c6+ Kc8 c5 Qb7 Ne6 Bd6 Nf4 Qa8 Bb8 Bg3 c7 Qe4 Bf2 Kb7 c8R Bh2 Bc7 Kc6 Rb8 Bg3 Ne6 Bge5 Rb4 Kd5 Bd8 Bb8 c6+ Kd6 Bc5+ Kd5 Rf6 Bed6 c7 Ke5 c8Q Qb7 Rh6 Qe4 Rh5 Kf5 Bc7 Ke5 Ng7+ Kf4 Ne6+ Kf3 Nf4 Ne3 Rc1 g1R Re1 Rgg2 Rg1 Rg3 Rh6 Nf1 Rf6 Rgh3 Rf5 Rg7 Nf2 Rg8 Nh1 Rh7
qq3N2/4qnPK/1r2N1QR/1qBB1bb1/4pR1n/Q2Pn1Rn/2qk3r/5R2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Kd4 b4 h5 Kg6 c5 g4 a5 f4 e5 b6 c3 f5 h3 d3 c4 g5 a4 f6 h2 f7 a3 b7 e3 b5 c2 b6 e2 Nh3 e1Q Qe2 h4 Nf2 c3 Qd1 a2 Ng4 h3 Ne3 Ra6 Qf3 Be7 f8Q Nc6 b8R Nh6 b7 Bf5+ Kg7 Rb6 g6 Nf7 Nc4 Bg5 Nba3 Ne7 Rb1 a1N Qh5 Qe4 Bd2 c1Q Bg2 c2 Be3+ Kc3 Bc5 Qb2 Rbf1 c1Q Nc2 Qb5 Nd4 Nc2 Ne6 Ne3 Rhg1 Qh4 Bd5 h1Q Rg3 h2 Rf4 e4 Ne5 Kd2 Nd7 Qc2 Ra8 Qhd1 b8R h1N Ra1 Nf2 Rb1 Qe2 Rf1 Nh3 Ra8 Qh2 Ra6 Qa8 Qg4 Nc6 Qd6 Nd4 Ndf8 Rh6 Kg8 Nf3 g7 Bd8 Qg6 Qe7 Qe5 Rh5 Qa1 Nh4 Qa3 Rg5 Rgg1 Rg2 Kh7 Rf2 Rgg4 Qg3 Rg5 Rh2 Rgg4 Qe1 Rg3 Qeb1 Ra7 Q1b3 Rc7 Q3b4 Rc6 Qbb2 Rd6 Qe5 Rc6 Qeb8 Nc7 Bc8 Qg4 Qe5 Rh6 Bf5+ Qg6 Qee8 Nce6 Bg5 Rgg1 Qed8 Rg3 Qe7
1n4R1/r2p1b2/2BNb3/1bbr3P/2QRq2P/kq2BR1Q/nNn1R3/K1nb4 w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 e5 a4 exf4 a5 h5 gxh5 b6 Ra2 bxa5 Ra1 a4 Kd2 Ke7 c4 Kd6 Kc2 Kc5 h3 Kb4 c5 g5 c6 a5 c7 f5 b3 f3 Kb2 f4 Ka2 g4 Bb2 d3 Na3 g3 Kb1 f2 Nf3 d2 Bg7 g2 Nc4 g1Q Nb2 a3 Qc1 a2+ Kc2 a4 Rb1 a3 Bg2 f1B Ng5 f3 Nf7 Qb6 Bd4 Bb7 c8R Bc5 Nd6 f2 e4 Rh6 h4 Qe8 e5 Ne7 e6 Na6 Rb8 Bd5 Ndc4 Ra7 Rh3 Nc6 e7 Bf7 Be4 Re6 Nd6 Bc4 Qh1 f1B Rf3 Bfe2 Rd1 a1N+ Kb1 Re5 Qh3 Nc2 Rd8 Qb7 Ra8 Qeb8 e8R Rf5 Re5 Bce6 Bd5 Bd3 Re2 Rg5 Be3 Re5 Rg1 d1B Rg4+ Bc4 Rd4 a2+ Kc1 a1N Kb1 Ka3 b4 Bd3 b5 Nab4 b6 Na2 Be4 Nb3 Bd5 Qa6 b7 Nbc1 Be4 N6b4 Bc6 Rd5 Ne8 Qe5 b8Q Qc4 Qb5 Qb3 Nd6 Qe4 Rb8 Na6 Rg8 Bb4 Qc5 Bb5 Qc3 Nb8 Qc4 Ne1+ Ka1 Bc5 Rgg3 Be8 Rg6 B8f7 Rg8 Nc2+
Bq2QRnR/n1P1bnR1/2P2r2/2kb2RN/7b/2r5/2Qp1N1b/1bq1Bn1K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 Ke7 Kg2 f5 c4 d5 a4 g5 h4 b5 e4 g3 c6 Kd6 e5+ Kc5 e6 b3 h5 d4 c7 b4 e7 b2 e8Q b3 a5 d3 a6 g4 h6 d2 h7 Be7 a7 Nd7 Bd3 f3+ Kf1 f4 Rh3 f2 Kg2 f1Q+ Kh1 f3 Ra3 g2+ Kh2 f2 Rh4 Bb7 Ne2 Qb8 Qc2 Ne5 Nf4 Bd5 Rh5 Nf7 Nc3 b1B Be4 g1B+ Kh1 g3 Rg5 b2 Nh5 Qd1 Ra6 f1N Rag6 Bf2 Rg7 Be1 Qca4 Qc2 Nd1 Qc3 Qc2 g2+ Kg1 Bh4 Nf2 Ngh6 Bf3 Rf8 h8R Ng8 Be4 Ba2 Bf3 b1N Bb2 Na3 Be4 Bb1 Bf3 Qe3 Be5 Nb5 Bg3 Qa3 Be4 Qc1 Bf3 Ne3+ Kh2 g1B+ Kh1 Nf1 Bg2 Kb4 c5 Bh2 Be4 Nfd6 Bf3 Rf6 Bg2 Nf7 Bf3 Qb6 Bg2 Rd8 a8R Na7 Rc8 Qb8 Bf3 Be6 Ba8 Rd3 c6 Rb3 Qd7 Re3 Rf8 Rc3 Qe8 Bb3 Ne4 Bd5 Be1 Rff3 Nf2 Kc5 R5g6 Rf4+ Rg2 Rf3 R2g5 Rf6+
3N1n2/1PPkbRQN/2r1r2b/2Bb1qnp/Q3q2K/1r1r4/1RB3b1/Q1bQ4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 d5 g4 e3+ Kf3 e2 f5 e1Q g5 h3 b6 e4+ Kf4 d3 c5 e3 b7 d2 f6 e2 g6 h2 Kg5 d4 c6 d3 b5 a4 b6 a3 g7 a2 c7 Rh6 Na3 Be7 Qb3 d1R Qa4+ Qd7 Nf3 d2 Nb5 Ra6 Rb1 a1B Na7 Bb2 Nc6 Qh3 Rg1 h1B Nd8+ Nd7 b8Q Bb7 Qa8 Bd5 b7 Bg2 Rh1 Bba3 Rb2 Rc6 Q8a7 Nf8 Qg1 Beb4 f7+ Kd7 Qd4 Nf6 g8Q Bc5 Qh8 Be7 Qg1 Qe6 Rh4 Qf2 Rf4 e1B Bd3 Qe4 Bc2 Qc5 Qh1 Bg3 Rf5 Bf4+ Kh4 N6h7+ Ng5 Re6 Qc3 Re1 Qf3 d1R Be3 Rd2 Qd1 Rd3 Qf1 Qa5 Bc5 Ree3 Qa1 Rb3 Qe2 Red3 Qed1 Nf6 Nh7 Bh6+ Rf4 Qb5 Ra2 Bc1 Rb2 Qe5 Rf1 Ne4+ Rf6 Ng5 Rf5 Rg6 Rf2 Qe4+ Rf4 Nfe6 f8Q Rf6 Qg7 Nf8 Ra2 Rfe6 Rb2 Qf3 Rf7 Qf5 Qf4 Qc4 Qe4 Qd4 Qeg4 Qde5 Qga4 Qee4+
3q1Rr1/2rR1K1Q/bNNQq3/3r1nP1/3bb1P1/3Nb1q1/1p5B/rk2Nn1B w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 g4 Ke6 f4 Kd5 a4 h5 c3 b5 f5 e5 f6 b3 a5 b4 a6 b2 f7 d3 Ke3 Kc4 a7 d5 Rh3 h4 Be2 d4+ Kd2 b3 Nf3 e3+ Ke1 e4 Nh2 Nf6 Ra6 Nh5 Nf3 Bg7 f8Q Ng3 Qc2 Nc6 Qd1 Rh7 Rh1 h3 Qh8 h2 Bf1 e2 Kf2 d2 Ne1 e3+ Kf3 d3 Kf4 Ne7 Rf6 Ba6 Ke5 Nef5 Bg2 Nf1 Ke6 Qg8+ Rf7 Bd4 Qg7 Qb8 Rf8 Qg3 Kf7 Rb8 Rg1 h1B a8N Re8 Bc6 Be4 Bb7 Rc8 Rg2 Rh8 Qh7 Rg8 Rf2 Rc6 Rd8 Rc7+ Rd7 Kb5 c4+ Ka4 Nc3+ Ka3 Nd5 Ka2 c5 b1R c6 b2 Rf4 Ra1 Nab6 Kb1 Nb4 Qh2 Qa4 d1R Qa3 d2 Nbd3 Qg1 Qd6 Qg3 Ng2 e1Q Rf2 Qe2 Nge1 Qef3 Ba8 e2 Bb7 Qe3 Ba8 Rb7 c7 Ra7 c8N Rc7 Ng2 e1B Ne7 Qe2 Nc6 Qee3 Rf4 Bf2 Nge1 Qe2 Rf3 Bfe3 Ke6 Nh6 Rf8 Nf5 Kf7 Ra5 Bb7 Rd5 Nc2 Re1 Ba8 d1Q Bd2 Bg1 Bf4 Bge3 Be5 Qdd2 Bf4 Rd1 Nce1 Rc5 Qh3 Bh1 Nd5 Bg7 Nc1 Qc4 Ne7 Qgh2 Qdh6 Bg2 Rdd8 Ka1 Q3h5 Qh4 Bh2 Qg3 Qc6 Qe4 Qh7 Bh1 Nb6 Qe6+ Ke8 Qdd6 Ncd3 Bgd4 Qd7 Re5 Bg2 Rd5 Qc6 Qed7+ Kf7 Ka2 Qc5 Ra1 Bf3 Qh6 Qd6 Kb1 Bg2 Qc8 Rd7 Qd8 Bf3 Bg2 Nc6 Bh1 Be2 Be4 Bf3 Rc8 Bg2 Rc7 Bh1 Qe6+
2r3rn/1k1N2n1/R5NN/2Bn1NPq/PK6/1R2rQ1B/b1Qpb1nb/3bq3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 h5 c4 d5 g4 Kd7 a4 Kc6 f4 b5 g5 e5 f6 d3 f7 h3 f5 h2 f6 b3 Kc3 d2 c5 e4 Bg2 d4+ Kb4 h4 Bf1 e3 Ra3 e2 Qc2 d1B Qc4 e1N Nf3 h3 Ng1 b2 Nd2 b1Q+ Bb2 d3 Qh4 Bd6 f8Q Ba6 f7 Nd7 Ne4 d2 Nf3 Ne5 Nc3 Ne7 Qf2 Ng2 Ne1 Rc8 Ne2 Rg8 Nd4+ Kb7 Nf5 N5g6 Nf3 Nh8 Ne5 Qe8 Rb3 Bc7 Nd7 Nd5+ Ka3 Qbe4 Nh6 Qe1 Qf5 Q8e2 Bc3 Qh5 Bd4 Bg3 Qc2 b4+ Kb2 Bae2 c6+ Ka8 c7 Kb7 Bc5 Bd6 Rc3 b3 Ka3 b2 Rd3 b1B Rb3+ Nb6 Kb4 Ba2 Qe8 Be5 f8N Bd6 Qe3 Be5 Rg1 h1N Ng6 Ng3 Rh1 h2 Qf2 Nf5 Qg3 Rb8 c8N Ng7 Nce7 Rbc8 Nef5 Bf4 Rg1 h1R Qf2 Ka7 Qf3 Rh3 Rh1 Rg3 Rh4 Be5 Rc4 Rh3 Re4 Bh2 Re6 Rg3 Qd5 Re3 Qf3 Nh4 Rc6 Kb7 Bh3 Ng2 Rb1 Na8 Rb3 Nc7 Ra6+ Nd5+
2b1n3/1Rn5/2BBb3/1B1QB1pq/Q1N1r1P1/2n4P/KN2rnb1/1qk1b1Rr w - - 0 1 illegal: No possible last move
b2k4/3BN1nQ/Nr4nq/r1pK3n/2QNRBbP/3R4/P2Nqb2/4qnq1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 b5 h4 f5 d4 g5 e4 f3 Ke3 f4+ Kd3 g3 e5 f2 Ke4 g2 d6 g4 d5 b3 e6 b2 e7 b4 Rh2 g3 Ke5 b3 Ne2 g1N Bg2 f1Q Be4 f3 Nec3 g2 Kd4 f2 Qd2 Nf6 Qe1 Bg4 Bh6 Na6 Nd2 b1B Nb5 b2 Bf4 Nc5 Rh3 Nh5 Qe2 Rh6 Bf5 Be4 Qc4 b1Q Rd3 Ra5 Bc8 Qb4 Re1 Ne2+ Ke5 g1Q Nd4 Ne6 d7+ Kf7 e8N Bc5 d6 Ba8 N2b3 c6 Nc7 Qf8 d8Q Rg6 d7 Qh6 Qh8 Ke7 d8N Neg7 Bd7 Qb5 Bc1 Nef4 Re4 Qe1 Nd2 f1N Na6 Rf6 Qh7 Qb2 Nf3 Qbe2 Nd2 Rg6 N8e6 Rf6 Nec7 Kd8 Nd5 Bb6 N4b3 Be3 Nd4 c5 Ne7 Rg6 Bb5 Bf2 Bd7 Nfe6 Kd6 Nf8+ Ke5 Rc6 Kd5 Ng6 N2b3 Qb4 Bf4 Qbe1 Nd2 Rb6+
1R1qN1BQ/n2kb3/B2b2b1/Qp2P1nr/2bq2q1/1N3P2/r4B1K/qRB3r1 w - - 0 1 illegal: No proof kernel
4qrqK/1RQ2Bn1/1N2R1NQ/1pP2bPn/q5Q1/1b5b/k1n1rB2/2b1Q2n w - - 0 1 illegal: No possible last move
RQQ3R1/1RBR4/b2b1KB1/p1P1P3/3nr3/Nbrk1nq1/4q2b/1nrn1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 c5 a5 h5 d3 h6 Kd4 b7 d2 b5 f3 Kg3 f2 b6 f4+ Kh2 g3+ Kg2 g4 h7 Nc6 b8R Qg5 b7 Nf6 Rh3 f3+ Kh1 g2+ Kh2 Bd6+ Rg3 Rd8 Qb3 d1B Bc4 f1Q h8R f2 Rh3 Qe2 Rh5 f1R Qb4 Bb3 Bf4 Rc1 Na3 Re8 Rb1 Ra6 Rhh3 Rb6 Qa4 Rb4 Bd3 Rbc4 Qb5 R4c3 Ra8 Qe5 b8Q Ba6 Rh7 Qg5 Rf3 g3+ Kh3 Qg6 Kh4 Re7 Nh3 g1N Nf2 g2 Nh1 Re5 Rg3 Nf3+ Kh3 g1B Q5b7 Re6 Rd7 Bh2 Q7c8 Re8 Be5+ Ke3 Rg2 d4 Ng3 Nd5 Bc2 d3 Rb2 Bf8 Bc7 d2 Nf1+ Kd4 Rg5 d1N Kg4 Bfd6 Bb1 Qg7 Kf5 Qe5+ Kg6 Qg3 Kf7 Re5 Rg8 Re6 Ba2 Kd3 Bb1+ Bc2 Rb7 Ncd4 Ba2 Bb3 e5 Rh6 Nb1 Rh4 Na3 Re4 Bb1+ R3c2 Rh8 N5c3+ Kf6 Bf7 Rg8 Bfc4 Ba2 Nb1 Bb3 Bf7 Be6 Rc3 Bf5 Be6 Bg6 Bb3
4rq2/2q5/1Nk3Bp/Q1bRnbnP/3Q1q2/P1Bn1bQb/3r2N1/qR3QK1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 f5 c3 bxc3 Qd4 fxg4 Qa4 Nh6 Qd1 Ng8 f4 g5 Kf2 d5 h4 Kd7 e4 b5 f5 c5 a3 c4 e6+ Kc6 e7 c2 e8Q+ Nd7 e5 d4 e6 d3 f6 c3 f7 h6 e7 b4 h5 d2 Bd3 b3 Rh4 b2 Bg6 g3+ Kf1 g4 Bh7 g2+ Kf2 g3+ Ke2 Qc7 Rf4 Nf6 Rf1 Ne4 Nf3 g1Q Ne1 g2 Qd8 Qc5 e8Q g1Q Ng2 Ng5 Qe3 Ne5 Qg3 Bh3 Bg6 Ra4 Rf5 Rd4 Qf1 d1B+ Ke1 Rd2 Qd4 Be7 f8Q Bf3 Qfd8 Re8 Qa8+ Qb7 Qa5 Qc7 Rf7 Bf8 Rd7 Qb4 Rd8 Bc5 Rd5 Qh2 Qgf2 Qf4 Qg3 Rd1+ Kf2 Rd2+ Kg1 Qf8 Qe3 Qbf4 Qef2 Rd4 Be3 c1N Bd2 c2 Bc3 Ncd3 Nd2 c1Q Nc4 b1B Nb6 Bc2 Rb1 Qb2 Qe3 Qa1 Na8 Ne1 Qd2 Bcf5 Nb6 Rd3+ Qe3 Rd2 Qd4 N1d3
2r3b1/4K3/3NbpnQ/2N1q1Q1/B1b1q3/1n1RbR2/1NknPn1P/2q1B1Nr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Ke6 b4 Ke5 b6 d5 b7 a5 c5 g5 b5 f6 c6 g3+ Kf3 a4 c7 g4+ Kg2 a3 b6 d3 Qd2 Kd4 Qa2 d2 Nh3 d1B Qc2 f3+ Kg1 g2 Kf2 g1Q+ Ke1 g3 Kd2 f2 Bg2 f1N+ Ke1 a2 Qg6 Be6 c8N Qe8 Bh6 Nc6 b8N Nge7 b7 Na5 Be4 g2 Nc3 Nb3 Bd2 Bh6 Qg5 Ng6 Bc2 Rg8 Rb1 a1Q Na6 Qaa4 Nd6 Rc8 b8Q Qb4 Qf5 Be3 Na4 Qbb5 Bb4 Qe7 Nb2 Nfd2+ Qf1 Qd3 Nc5 Qe4 Qb5 Rgd8 Rc1 Bg8 Ra1 Q7e5 Ra3 Be6 Qe8 Rd7 Qg8 Rb7 Ba5 Rb4 Qf8 Kc3 Qh6 d4 Qg5 d3 Qh6 Bd4 Qg5 Qge3 Qff4 g1N Qfh4 Q3f4 Qhh5 Be3 Qhh6 Ndf3+ Kf1 d2 Kg2 Bc4 Bd3 Be6 Bb5 Kc2 Ba4 Rd4 Nf2 Nh3 Rf1 Rc4 Bb4 Kb1 Ba5 Rc1 Bc3 Bc2 Bb4 d1B Be1 Nhg1 Nh3 Bd3 Rf2 Bdc4 Rf1 Nfd2+ Rf3 Na5 Rb3 Kc2 Rd3+ Nab3 Nd7 Qc3 Nc5 Qff5 Kg3 Qfe5+ Nf4 Bg8 Kg4 Nh3 Kh5 Nf2 Nh3 Ra1 Ng1 Kb1 Qh7 Qc1 Kh6 Bce6 Kg7 Bc2 Qh3 Bc4 Qhh6 Bce6 Rd4 Bd3 Rd5 Bc4 Rd3 Nf4 Rg3 Kc2 Rf3 Rc6 Kf8 Rc8+ Ke7 Rb1 Ndb7 Ra1 Rd8 Rb1 Nd6 Ng6+ Ke8 Nh3 Nf7 Rb8 Bg3 Nhf4 Nh3 Qd1 Bf2 Nd3 Bg3 Nh4 Ke7 Rc8 Rd4 Ra1 Nd6 Rc1 Be1 Nf2 Rd3 Nb1 Bc3 Qd2 Rd5 Rh1 Rd3 Qc1 Be1 Nd2 Ng1 Ng6+
Q3n2Q/r1Qrn1K1/1b1P3r/pbP1q3/1k2q2B/4Nn1Q/B2Rq3/N1nrR3 w - - 0 1 illegal: No proof kernel
Q1KBb3/1n1r4/Nn1p1Q2/2P5/N2RPbq1/r1nn1q1k/6br/1R1Q1QrB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 a5 c4 h5 b4 d3 g4 h3 c5 a4 b6 d6 b7 h2 b5 h4 g5 d2 g6 a3 b6 a2 g7 h3 Qc2 d1N e3 Ne7 Qa4 Nec6 Qd4 Qd7 Nc3 Na5 Qd3 Rh7 Ke2 f3+ Kd2 f4 g8Q+ Ke5 e4 f2 Qgc4 f3 Bg2 Kf4 Nb5 Kg3 Nc7 f1Q Ne2+ Kg4 Kc2 f2 Bg5 Bh6 Bd8 Bf4 Nc3 Qg7 Qcd5 Nd7 b8Q Qg6 Rg1 h1N b7 h2 Qe2+ Kg3 Kd3 Qg4 Kd4 Rg7 Rc1 a1R Qe6 Re7 Kd5 Ra2 Bf3+ Kh3 Qf6 Qfg2 Qa6 f1R Rb1 Nhf2 Rh1 Ra7 Qa8 Rg7 Rg1 h1B b8Q Re1 Qb3 Nb7 Kc6 Nb6 Qe2 R7a3 Na4 Nc3 Na6 Bd7+ Kc7 Be8+ Kb8 Rc1 Rd1 Rd7 Rd4 Rg1 Qbd1 Nd3 Qf2 Q2g3 Qfe1 Rh2 Qf1+ Bg2 Qfe2 Bf1 Bh1 Bg2 Qef1 Nc4 Kc8 Qe3 Nb8 Qef3 Na6 Nb6+
1b6/2rRnq2/b1pn1P1N/Kr1kn1QN/B1b2q2/3qR1n1/QQ1P4/2Bq2Q1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kf7 b4 Ke6 g4 h5 f5+ Kd5 g5 e5 g6 a5 f6 c6 g7 h3 b6 h4 b7 a4 b5 c3 b6 e3 Ke2 c2 Kd3 e2 Kc3 e1Q Qg4 e4 Qd1 e3 Qg4 a3 Qg3 a2 Nf3 e2 Kb3 h2 Bb2 c1N+ Kc3 h3 Nh4 Nb3 Qe3 Nd4 Nf5 Ra7 Bc1 Qh4 Qg1 e1Q Qf2 Qee7 Bb5 Qf4 Nh6 Nf5 Re1 h1B Ba4 h2 Qg1 Nd6 Re3 Nd7 b8Q Ba6 b7 Ne5 Qa8 Qf7 b8Q Ne7 g8Q Rc7 Q8g5 Bg2 Qb4 h1N Qb2 Bgf1 Qa7 Bfc4 Kb4 Qd7 Ka5 Ng3 Qa8 Qdf5 Qa7 Qd3 Nc3+ Ke6 Ne4 Kd5 Rb1 a1Q Qa8 Qaa3 Ra1 Qab3 Ra2 Qd1 Ra1 Ngf5 Ng3 Rh7 Nh5 Ng3 Ra3 Rg7 Rb3 Rg6 Rb8 Rg8 Rd8 Rh8 Nf5 Bh6 Rd7 Rb8 Qa7 Bf8 Nh6 Rb6 Bb3 Rb5+ Ka4 Bb7 Ng4 Nc8 Rd8 Re7 Qa5 Ba6 Nh6 Rb7 Re8 Nde4 Rd8+ Bd6 Rd7 Ne7 Bc2 Ke6 Bb3 Bb8 Bc2 Rc7 Bb3 Rc5 Kb4 Nd6 Qaa2 Rb5+ Ka4 Rb6 Ka5 Kd5 Ba4 Rb5+
5RnK/3r2Qb/rP2P1b1/1NRRr2k/2r5/R6B/QqN1qB1p/bn2n2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 f5 g4 Kf7 e4 Kg6 c4 h3 b4 h4 g5 d3 b6 d4 b7 f3 b5 d2 c5 f4 c6 h2 b6 a4 c7 a3 Bb2 f2 Qg4 d1R Qe6+ Qf6+ Kd5 h3 e5 a2 Qg4 f3 Qg3 d3 Ba3 d2 Ne2 Kh5 g6 Nd7 b8Q Bg7 Rg1 h1N Qg2 h2 Qa7 Nc5 Nbc3 Nd3 Bc5 Ne1 Nd4 Bf5 e6 Rc8 Ncb5 Rh7 Nc2 Qb2 Kd6 Rc1 Qg3 d1B Bh3 f1Q Bf2 Qe2 Rg2 Bf6 g7 Bg6 Kd7 Rf8 c8R Bc3 Qa4 Rf5 Rc5 Rg5 Qc7 Re5 Rg4 Bd4 Rd5 Bc3 Rc4 Bd4 Rcc5 Bc3 Rb1 a1R Qa8 Ra7 Ra1 Ra6 Ra3 Bd4 Kd8 Bc3 Qf7 Bd4 Ke8 Bc3 Bh4 f2 Kf8 f1N Bf2 Nd2 Qe7 Nb1 Qf6 Nh6 g8R Rd7 Qf7 Bd4 Kg7 Bc3 Re8 Ng8 Kh8 Bd4 Rf8 Bc3 Ncd4 Bc2 Qg7 Bcf5 Nc2 Bh7 Rd2 Bfg6 Qd5 Bd4 Qa2 Bc3 Rdd5 Bd4 Na1 Rc4 Nc2 Qc1 Rg3 Ba1 Ra3 Qb2
B5Q1/BrR4P/1Q2P2N/Rqr1qb2/B7/nKnr2p1/Nn5B/1qbn1k1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 Ke4 Kc2 f5 e3 a5 c5 g5 c6 d5 b6 a4 b7 d3+ Kb2 f3 h5 d4 b5 f2 b6 g3 h6 f4 c7 g2 h7 a3+ Kb3 a2 Nh3 g1Q Qc2 Kf3 e4 d2 e5 d1R Qf5 g4 Qg6 g3 Bd3 Kg2 Ba3 f1Q Bb4 f3 Qe8 f2 Bf5 d3 Bg6 d2 Ng5 Nf6 Ne4 Nd5 Qf7 Nd7 b8Q Qb5 b7 f1R Nf2 Qf6 Bc2 Ra7 Nc3 N7b6 Qg8 Nc4 Ng4 Nb2 Nh6 Bf5 e6 Qe5 c8B Qgb6 Rh5 Rh1 Rc1 Kf1 Qc7 Qg1 b8B Rb7 Qb6 Bg7 Ba7 a1N+ Ka3 Bf6 Bc5 Bg5 Na2 Nc3 Ba4 Be3 Rc2 Rc1 Bd7 d1N Bc6 Bd2 Qg6 Rd8 Qg8 Rd3 Bd5 Qg2 Bg1 Be3 Bh2 Qg1 Re2 Bd2 Re4 Rc2 Rc4 Rc1 Rc7 Bg5 Nb4 Nc2+ Kb3 Na3 Bc6 Rc2 Bd5 Qge3 Be4 Qc1 Bc6 Qb1 Bd5 Rb8 Ba8 Bc1 Rg5 Rb7 Rh5 Qd7 Na2 Qc6 Rg5 Qcb5+ Nb4 Qbc5 Rg6 Qed6 Qb5 Bh3 Na2 Ne2+ Nc3 Qcb6 Rgg7 Qa5 Rc5 Qe5 Qb6 Bf5 Rd5 Qc5 Rc7 Qc6 Ra5 Qd7 Kb4 Qe8 Na2 Rc5 Rg7 Nec3 Kb3 Qc6 Rc7 Qb5+
3Kb1R1/rqQ1qqpb/4Bq2/N4rB1/n2PnRrB/P3QB2/7r/1k1N2b1 w - - 0 1 illegal: No possible last move, all moves rejected
3K3B/2RR1P1b/nbrn1b2/N1Nq4/2nk1p1Q/r2Prn2/4q3/RR2rBQ1 w - - 0 1 illegal: No proof kernel
BB3Rnb/1q3pr1/3N1brP/4Pb1q/4R3/k1K1RRNr/3Q2Qr/n5nb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kd6 h4 g5 e4 a5 c4 f3 b6 a4 h5 f2 b7 g3 b5 Kc5 b6 Kb4 c5 d5 c6 a3 c7 g4 Bd3 f1R Rh3 a2 Rh1 g2 Bb2 g3 Be2 d3 Na3 d4 Rb1 a1B Nc4 Ra3 Qc1 Qd7 Qc2 Na6 b8Q Bg7 b7 Rf6 Rd1 Rg6 Rh3 Bf6 Bf3 Nc5 Ne2 g1R Rf1 g2 Qa8 Qe7 Qc1 Bf5 c8R Qc7 b8R+ Qb7 Re8 Nb3+ Kd1 d2 Kc2 Rhh6 Nd6 d1B+ Kd3 Rg7 Ng3 Rhg6 h6 Rh1 Re1 g1N Re3 Rh2 Bh1 Bf3 Qd2+ Kc5 Bc3 Bb2 Rf8 Na1 Rbe8 Rb3 Qa2 Ra3 Qg2 Rb3 Kd2 d3 Be5 Kb4 Bf4 Bbe5 Qc2 Ka3 Qd1 Rb4 Re6 Rd4 Kc3 d2 Qde2 d1Q Qd2 Bg5 Nc8 Bef6 Bb8 Bh4 Nd6 Bhg5 e5 Rh4 Ree8 B3e4 Rc8 Qh5 Rc4 Bd5 Rce4 Bc6 Nf1 Bd5 Rhg3 R4h3 Rgf3 Bh4 Qge2 Rgg3 Ref4 Be7 Rf2 Rh7 Kd4+ Qb3 Be4 Rg6 Ng3 Bc6 Bd3 Qb5 Kc3 Bh1 Be4 Qd7 Ba8 Qb7 R2f3 Bhg5 Rd8 Bf8 Qg2 Bg7 Rc4 Bh8 Rf8 Bgf6 Rce4 Rhg7
N5Nr/1p1b3B/NQ1Q2rN/K1b1RRnk/2b1PP2/3n4/1Br2b1r/n1qq4 w - - 0 1 illegal: No proof kernel
3q4/pQBrRq1r/1Kn2n2/Pbr3NB/2k3PR/2B1Q2n/1bq1n2N/3q1B2 w - - 0 1 illegal: Other
1rbnr1Q1/1NKR4/PrN4q/1B2bk2/1n1Bp1b1/R7/rBP2B2/2rb2Qr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 h5 g4 e5+ Ke4 b5 Kd5 e4 f4 b3 a4 b2 a5 b4 Qd3 b3 Nf3 h3 Ng1 h2 Na3 b1R Qd1 h4 Nb5 b2 Ne2 h3 Nd6 d3 Nd4 Na6 Nc6 d2 Bd3 Rb8 Ra3 Bg7 Nb7 Ra1 Kd6 b1R Be2 Rb6 Bb5 Nb4 a6 Qe7+ Kc7 Qf8 Rf1 d5 Bb2+ d4 g5+ Kf7 g6+ Kf6 Qg4 Nh6 Rd1 Nf7 Qg2 h1B Qf2 h2 Qg1 Bh6 g7 Ra2 g8Q Bf3 Q8g3 Nd8 Qg4 Kf7 f6 h1R f5 d3 Qg5 Bg7 Q5g3 Kg8 f7+ Kh7 f6 Rg8 Qg5 Bfg4 Qd5 Kg6 Qb3 Qe8 f8B Qe6 f7 Kf5 Bc5 Re8 f8B Qh6 Bf2 Be5+ Bd6 Qh3 Qg8 Qh6 Ra1 d1R Rb1 Bh8 Bde5 d2 Ra1 Rf1 Re1 Bg7 Ree3 Rd1 Red3 Rc1 Rd7 d1B Bed4 Be5+
2N2R1r/B5P1/1rnbp3/4kr1B/rPn2qnN/3nrbNr/3RQ2Q/1KN5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 h5 c4 d5 Kc2 a5 b4 e3 c5 h3 c6 h4 f5+ Ke5 g5 d3+ Kb2 e6 g6 d2 b6 e2 c7 e1R f6 h2 b7 d4 g7 h3 f7 d3 Nc3 a4 Kb1 a3 Na2 Ra6 Ne2 Qd6 Nd4 Nc6 b8N Nf6 Nf5 Bb7 c8N Rb6 Nd4 Re3 Nf5 Ng4 Qe1 d1R Nh4 d2 Qe2 Ba8 Rg1 h1R Rg2 h2 Na6 Re1 Nc5 d1N Rf2 Nb2 Ne4 Nc4 Ng3 Qd4 Rg2 Bd6 f8Q Qf4 Qd8 Rd1 Qc7 Rd5 Bd2 Bb7 Nc1 Ra5 Be1 Rd5 Bf2 a2+ Kc2 Ra5 Rb1 a1R Rb2 R1a4 Kb1 Nb8 Rd2 Bf3 Bg1 Nc6 Rf2 Kf6 Bg2 Rf5 Bh3 Ke5 Rf1 Nf2 Bg4 Nd3 Bf2 Rg1 Qb8 h1N Bh5 Rg2 Bg1 Nhf2 Qc7 Ng4 Bf2 Re4 Be3 Rh2 Bg1 Rb5 Ba7 Re3 Qb6 Rf7 Qg2 Be4 Nce2 Qf3 Rf2 Rh3 Qb7 Nb8 Nc1 Rb6 Qh2 Rff8 Qf7 Nc6 Rf1 Qf2 Qf3 Rf7 Qe2 Qf6 Rf4 Bf3 Ng2 Qg5 Rf6 Qf4 Nh4 Re7 Rf8 Rf7 Rb2 Rf6 Rd2 Rf5
B3q2R/N1B1n2n/rn6/Q3PPQp/b1B2r1b/Nr2kr1K/b3b3/1B1R1n2 w - - 0 1 illegal: No proof kernel
1r1n1r1k/1RBPbQ2/R1p2q1b/2P5/3RbnKb/2NBQn1r/7R/1N2r2n w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 e5 b4 h5 d4 f5 g4 Kf7 c4 Kg7 g5 a5 c5 a4 b6 h3 Kg3 h4+ Kh2 e4 b5 f2 b7 e3 g6 f4 d5 a3 d6 e2 b6 e1B d7 f3 Qb3 a2 Bc4 f1R Nc3 f2 Na4 Ne7 Qb1 Nd5 Nf3 Nf4 Be6 Qf6 Qd3 Be7 Bd2 Rf8 Bc4 Kh8 Qe3 Nc6 b8R Bb7 Nc3 Nd8 Bd3 Be4 b7 c6 Rd1 a1B g7+ Kg8 Rc8 Rb8 Bc1 Rg1 Nd2 Bb2 Ndb1 Bd2 Rc7 Re1 Ne2 Bd4 Nec3 Kh7 g8R Be5 Rg4 Kh8 Bb2 Bd4 Ba1 Bc1 Rd2 Be5 Ra2 B5d6 Ra6 f1N+ Kg1 h2+ Kf2 h3 Rh4+ Bh7 Kf3 Nd2+ Kg4 Nf3 Bb2 Nh5 Ba1 Bg3 Bb2 Be4 Ba1 Rc8 b8Q Bd2 Qb4 Rb8 Rb7 Bf2 Qbd4 Bg3 Qf2 Bh6 Qde3 Nf4 Qa2 Bf2 Qf7 Bg3 Nb5 Bf2 Be5 Bg3 N5c3 Bf2 Rf1 h1R Bc7 h2 Rh3 Bh4 Rg1 Rc1 Rd1 Re1 Rd2 h1N Rhh2 Rc2 Bb5 Ra2 Rd4 Rf2 Bd3 Rff1 Rc2 Rf2 Rd2 Rh2 Rf2 Rh3 Rd2 Ng5 Rh2 Nf3
NQ6/1b3p2/bQ3K2/q3b3/q1r1BPr1/4Q1R1/NQPnRBbk/2rb1qb1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 Bd2 axb4 Bc1 g5 e3 gxh4 Rh2 d5 Rh3 d3 Rh1 d4 e4 Nd7 Bf4 Ndf6 Bc1 Nd5 exd5 Ra5 Rh2 Ra7 Rh1 Ra8 Kd2 Kd7 a4 Kd6 g4 Ke5 f3 Kf4 a5 Kg3 a6 h5 g5 e5 a7 b5 f4 e4 g6 h3 d6 h4 g7 h2 d7 b3 Bg2 h3 Nf3 b2 Ra6 b4 Rh6 b3 Qe2 e3+ Ke1 d2+ Kd1 Nf6 g8Q+ Bg7 Qb5 Qa5 Ke2 d1B+ Kd3 e2 d8Q e1B Qbe8 Ne4 Rf1 h1B Qgf8 h2 Rd6 Nd2 Ne5 Bf2 Nc4 Rh4 Rg1 Ba6 Be4+ Bg2 Qh8 h1B Nc3 b1R Na2 b2 Re6 Be5 Qb6 Rc8 a8Q Rg4 Qab8 Ra1 Qe7 b1Q Ba3 Qb2 Bc5 Rc1 Qhf6 Kh2 Qg7 Bh3 Rg3 Qa1 Qgf6 Bg1 Qb2 Bb7 Nb6 B3g2 Na8 Rc7 Ba7 Rc4 Qea3 Ba6 Re8 Nb3 Qfb6 Nd2 Qac3 Nb3 Qe1 Nd2 Qe3 Qa4 Bg6 Bgb7 Be4 Bg2 Qg6 Qd7 Qe2 Bc7 Qb5 Nb3 Nb4 Qa5 Bc6 Rb1 Na2 Bd6 Qf3 Be2+ Ke4 d3+ Kd5 d2 Bf2 Re1 Qf6 Rb1 Qb2 Rc1 Re4 d1Q+ Qd3 Qad2 Qb6 Qf1 Qdd4 Qa5+ Qdc5 Be7+ Ke5 Bd1 Re2 Nd2 Be4 Bd6+ Kf6 Qda4 Qe3 Be5+
1n1q4/1qr1B1nR/BnrQ1b2/1NB2kn1/P1q1pB2/q1q2N1K/2n1PQ2/5R2 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Qd4 Qb3 Qd5 Qd1 Qd8 a4 Kd7 d4 Ke6 f4 h5 g5 b5 d5+ Kf5 d6 e5 d7 c5 g6 b3 g7 c3 Qd3+ e4 Bd2 c2 Be3 c1Q+ Qd1 c4 Ra3 b2 Bd2 h4 Bb4 h3 Rh2 c3 Be7 c2 Rf3 b4 Bc5 b3 Na3 b1Q Rf2 b2 Bb6 Rh7 Nb5 Ne7 g8Q Bg7 Bc7 Ra6 Be5 Nc8 Qd5 Bf6 Qc6 Nb6 Nf3 g1N Qd5 g2 Qd4 Qa2 Qc5 b1N Qd6 Qe3 Q1d4 Qea3 Rh1 h2 Qe3 Kg4 f5 Nh3 Bf4 g1Q Qec5 Qg3 Bg2 c1N Kf1 Qc4 Qe3 Ng5 Bh3+ Kh5 Qed4 Nd3 Qe3 Nc5 Qed4 Bh8 f6 Kg6 f7+ Nce6 f8B Bf6 Qe3 Ng7 Be6 Qe7 d8B Qb7 Bde7 Qac3 Qed4 Na3 Bc8 Nc2 Qe3 Qh4 Kg2 Qa3 Rff1 Qe1 Qf2 Qec3 Rhg1 h1Q+ Kg3 Qh5 Rh1 Qh4+ Kg2 N6d7 Rh2 Rc6 Rh3 Nb6 Rhh1 Qc7 Ba6 Qb7 Rh3 Kf5 Rh2 Qh5 Kg3 Qe8 Rh4 N5e6 Kh3 Qd8 Rh6 Ne8 Rh4 Rf7 Rh8 N8g7 Rh7 Ng5+ Kh2 Na8 Qd2 Qe6 Bc5 Qeb3 Qd6 Rfc7 Be7 Qbc4 Kg3 Nb6 Kh4 Nf7+ Kh3 Ng5+
BN2q2R/2NPk1q1/2bnn1Q1/3n3K/7p/n3qR1P/4Rr1Q/BqRnnr2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 e3 d5 Be2 e6 Kf1 d3 Na3 d2 Kg2 d4 Nb1 d3 Bf1 Bd6 Qe2 Be5 Qd1 Bd4 exd4 Kf7 Ba3 Kf8 Bc1 Ke8 Kg3 h5 c4 b5 a4 g5 f4 e5 h3 b3 d5 b2 a5 h4+ Kf2 g3+ Kf3 b4 c5 g2 c6 b3 c7 Bd7 c8R Nc6 a6 Nge7 f5 e4+ Kg4 e3 d6 e2 a7 e1N Rh2 Rf8 Na3 b1Q Qe2 d1N Qa2 d2 Bb2 Nd4 Ne2 g1Q+ Bg2 Nf2+ Kh5 d1N f6 g4 Nb5 Ne6 Ned4 g3 Nc6 Ne4 Nb8 Bc6 d7+ Kf7 Bd4 b2 Nc7 Nd6 Be4 Qe3 Re2 g2 Qa6 Qa2 Rc1 b1N Ba1 g1Q Bf3 Qb2 Qd3 Qg7 Qg6+ Kg8 Bg2 Qe8 Be4 Nd5 f7+ Kh8 Bf3 Na3 Bh1 Rg8 f8R Qb1 Rf3 Rf8 Bg2 Kg8 Bh1 Rf4 Rd8 Kf8 Bg2 Ke7 Bh1 Qef7 Rh8 Qe8 Rg3 Nb6 Be4 Qef8 Ne8 Bb5 Na6 Qed3 Nec7 Qb8 Bc6 Nd5 Bb7 Qd8 Rge3 Rc8 Nb8 Qdg8 Bc6 Rcf8 Bb7 Rf1 a8Q Nb6 Qa7 Nd5 Ba8 Bc6 Rg3 Q8f7 Qf2 Qe8 Qh2 R8f2 Rf3 Qe3
B1kq1r2/1qnnB3/B1Q2R1r/4rP1r/2Npr2N/3P1KRb/qq3Q1B/6r1 w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 c3 fxe4 Ba3 g5 Bc1 gxh4 Bb5 b3 Bb2 Bg7 Ba4 b5 Ba3 b4 Bc1 b2 Bb5 b3 Bf1 Be5 Rh3 Bd6 Rh1 Bb4 cxb4 Bb7 Be2 Ba6 Bf1 Bc8 Ke2 Ra5 a4 d5 g4 Kd7 f4 e5 b5 h5 d3 c5 g5 c4 b6 h3 g6 c3 g7 h4 b7 c2 Be3 c1R Kf2 h2 Be2 d4 Ra2 h3 Nc3 b1Q Nd5 b2 Qf1 Ne7 Nf3 Rf8 Rg1 h1R g8Q h2 Qg6 Ra6 Qgg2 Rh6 a5 Rc5 Ra1 Qa2 a6 b1Q a7 Qbb2 a8B Rb5 Bd2 e3+ Kg3 e4 Nb6+ Kc7 Bb4 Rbh5 Nc4 Bh3 Nh4 Nd5 Be7 Nd7 b8B+ Kc8 Bf3 e2 Re1 e3 f5 Nc5 Be5 Nd7 Qff2 Nc7 B5d6 Qb8 Rb1 e1R Rb6 e2 Rc6 Qb6 Bf4 Qbb2 Rf6 Ra1 Bfc6 e1R Bb5 Re5 Qgf3 Rae1 Ba6+ Kb8 Rg2 Rhg1 Qd5 h1Q Qe6 Rgf1 Rg1 Qhb7 Qc6 R1e4 Kf3 Rd1 Bh2 Kc8 Rg3 Rg1
2k1NKN1/1Rnn2p1/qq1R2P1/2r1QQB1/2B2r2/b5Pq/nr1n3N/N1r1q3 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 h3 cxd4 f5 b6 f6 Bb7 Nc3 Bf3 Nb1 Bg4 hxg4 exf6 Bd2 f5 Bc1 f4 Kf2 f5 Kf3 d5 e4 Kd7 c4 h5 a4 d3 e5 d2 c5 b3 a5 d4 c6+ Kc8 g5 h4 c7 h3 g3 d3 e6 b2 e7 h2 e8Q b5 a6 b4 a7 b3 g6 Rh4 Nh3 Ne7 Qf7 Nd7 Ra6 Nd5 Ra2 Ba3 Qe1 d1Q+ Qe2 d2 Ng1 Qe1 Qe5 d1R Nd2 b1N Rb2 Nbc3 Bc4 Na2 Qf8 Rb8 a8N Rh5 Rb1 b2 Nb3 Rb5 Na1 Rh4 Bd2 Rc5 Be3 Rc1 Bd2 Kb7 c8N Qb6 Ne7 Nc7 Ng8 Rg4 Qff6 Kc8 Be3 Rc2 Rd1 b1R Rd6 Rbc1 Qfe6 Rb2 Qf7 Ne6 Nc7 Rh4 Ne8 Nc7 Ne2 Rg4 Nd4 Rh4 Rg1 h1Q+ Rg2 Qh3 Rd2 Rg4 Rd3 Qa6 Rb3 Qea5 Rb7 Q5b6 Ndb3 Rh4 Nd2 Rg4 Nf1 Rh4 Bd2 Rg4 Ke2 f3+ Ke3 f2 Nh2 f4+ Ke4 f1Q Kf5 f3 Bg5 f2 Qf6 Qe1 Qf8 Nb5 Ke6 f1N Ke7 Rf4 Qf5 Nc7 Qb1 Nf6 Kf8 Nd2 Qbf5+ Nd7+
q5QB/1QrBb3/2b5/PBBqqb2/qN6/b2p4/1r1PRKrR/rkN2n2 w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Na3 b5 Nb1 b3 c4 b4 Rh3 Nc6 Rh2 Nd4 Rh1 Nb5 cxb5 Ra3 Rh2 Ra6 Rh1 Ra8 e4 Ke7 a4 Ke6 g4 Ke5 g5 Kd4 b6 f5 g6 h5 a5 d5 b7 c5 b8B b2 e5 b3 g7 h3 e6 c4 e7 f3 e8B h2 Bg3 f2+ Ke2 c3 Bd7 h4 Qc2 f4 Be6 f3+ Kd1 h3 Qg6 Be7 Bh4 Nf6 g8Q Ra7 Qg2 Nh5 Q8g3 Rc7 Bb5 f1Q+ Qe1 f2 Bc6 Kd3 Bg3 d4 Na3 b1Q Nc4 b2 Nb6 Qa2 Bg4 b1R Be6 Rg8 Be8 Qdd5 Ba4 Rb2 Bb3 Qa4 Be5 Ng3 Ne2 Rg5 Bg4 Bf5 Bh8 Qe5 Qg1 Qg2 Nd5 f1R Rb1 Qge4 Qg2 Rg1 Qef1 c2+ Ke1 Rg8 Kf2 Rg7 Qd1 Nf1 Ba2 Rbb7 Ba3 c1B Bb4 Ba3 Bc5 Rb2 Qe1 Kc2 Nc1 d3 Bc4 Rg8 Bb5 Qec4 Qee4 Qa2 Nc3 Qad5 N3a2 Qa8 Qb7 Rg5 Ne2 Rg6 Re1 Rg8 Nec1 Kb1 Qgd5 Rg2+ Kf3 Rgc8 Qg8 Rb8 Rg1 h1Q Re2 h2 Nb4 Ra2 Bh3 Ra1 Bg4 Rg3+ Kf2 Qhd5 Rg2 h1B Rh2 Bhe4 Ke1 Rg2 Bh3 Qc4 Bg4 Bc6 Bh3 Qcd5 Bg4 Be4 Bd7 Bf5 Nba2 Rg3 Bc4+ Qb3 Qb5 Kc2 Kf2 Qa4 Qa6 Rb2 Nb4+ Kb1 Bb5 Rg5 Qb7 Rg2+
1R1b2N1/3n1R1b/2q1B1R1/PNbrQ1B1/pnr3q1/1P3nr1/QpR4q/3k1K2 w - - 0 1 illegal: No proof kernel
q1Q2bBR/BnNQR2N/1n1n2p1/2b1q3/1pr3br/q7/k1PKP3/r1B4B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 a4 Ke7 h4 b5 e6 Kd6 h5 Kc5 a5 f5 e7 d5 e8B b3 h6 Kb4 h7 f4 a6 f3 a7 b2 Rh4 g3 Bg5 g2 Bf4 f2+ Kd2 g6 Bh2 Bg4 Nf3 g1B Ra3 d3 Bc7 d4 Ra6 Nc6 Bb8 Na5 Bf4 Ne7 Rh6 Rc8 a8Q Nf5 Be5 Nb7 Rh3 Nfd6 Qb8 Rc4 Qc7 Qa8 Nc3 b1R Ra3 Ra1 Bg2 f1Q Ng5 Qf5 Bf4 Qe5 Bh1 Bf2 Ra6 Bg1 Rc6 Ka3 Nd5 b4 Qc8 Ka2 Rc7 Bf2 Bf7 Be3+ Ke1 Bg1 Bc1 d2+ Kf1 d3 Bg8 Bf2 Re7 Bc5 Nc7 Qa3 Qe1 d1N Qd2 Nc3 Ke1 Qa8 Qd1 Qa3 Kd2 Na4 Qg1 Nf5 Qd4 Nb6 Qdd7 Nfd6 Be6 Rg8 h8B Qa8 Bf6 Rh8 Bg8 Rh4 Nh7 Qa3 Bg5 Qa8 Be3 Qa3 Ke1 d2+ Kf2 Qa8 Ng5 d1Q Re8 Nd5 Re6 Qd3 Ke1 Qda3 Re7 Bb6 Kd2 Rh7 Bf2 Rg7 Rh8 Rh7 Be3 Rh4 Nh7 Bd4 Bh6 Bf2 Be3 Bg1 Bb6 Bc5 Ba7 Nb6
2q1r3/K1nnB3/B1Npq2r/bBR1QP2/R1P1q1Q1/p5bB/n6k/3N2rb w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 Kf7 g4 Ke6 b4 Ke5 c4 Kf4 g6 e5 f3 Kg3 g5 a5 f4 h5 g7 e3+ Kd3 e4+ Kc2 d3+ Kc3 d2 Kd4 a3 g6 a2 f5 a4 b5 h4 b6 h3 b7 e2 Nc3 e1Q Bg2 e3 Ba3 h2 Bh3 e2 Be7 Nf6 Kc5 Nd5 g8B Nc7 Kb6 Rh6 Bf7 d6 Be8 Bg7 Bb5 Be5 g7 Qh8 Rb1 a1R g8B a3 Be6 Bd7 Nf3 Bc6 Nd4 Qc8 Rb4 Bf3 Rf1 h1Q Nc6 Kh2 Ra4 Bg3 Ba6 Bd5 Bd7 Qe4 Rf4 Qe6 Rd4 Bh1 Rd5 Rc1 Rc5 Ra1 Qb1 d1N Qe4 Rc1 Qg4 Ra1 Ne4 Nc3 Nf2 Na2 Nd1 Qe4 Nd8 Qe6 Bdb5 Rc1 Nc6 Ra1 Nb2 Qb1 Nd1 Nd7+ Ka5 Qbe4 b8Q Nf6 Kb6 e1B Qb7 Rb8 Ka7 Nd7 Qb6 Rc1 Qa5 Bd2 Nf2 Rg1 Qc3 Be1 Qe5 Ba5 Nd1 Qcg8 Bg5 Re8 Bh4 Re7 Bg5 Qc8 Bh4 Re8 Bg5 Bc3 Be7 Ba5
1nr1bBn1/5BQp/1qP1q1QQ/Pk2N3/2qQ1K2/7N/3R1bpR/brr2n2 w - - 0 1 illegal: No proof kernel
Q1n5/B2NQb2/1Rb2qrr/b1Rn4/k2n2B1/n1P3pp/3PR2n/Nr2R2K w - - 0 1 illegal: No proof kernel
1R3b1Q/2Rr2B1/4nN2/2rqp2p/B2rr2n/b2bP3/1rQBBP1K/k4nN1 w - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 c4 Kf7 b4 Ke6 e3 h5 c5 Kd5 b6 g5 b5 a5 b7 e5 b6 h2 c6 d3 c7 Kc4 Nh3 d5 Nd2+ Kc3 Ba3 d4 Qe2 a4 Rg1 h1N Rd1 g4 Nf4 g3 Qf3 g2 Nh3 Nc6 b8Q Nge7 b7 Ng6 Bc5 Kb2 Qe4 a3 Nf3 d2+ Ke2 a2 Qf5 a1B Bb6 Ra5 Nfg5 d3+ Kf3 Ng3 Rc1 d1R Be2 d2 Nh7 Rc5 Ba5 Qd5+ Qe4 Ka2 Nf6 Bf5 c8B Nd8 Bd7 Bb2 Ba4 Ne6 Rh1 Ba3 Ng1 Rg8 Qc8 Rg7 b8B Rb7 Bd6 Rb2 Rc3 Ka1 Bb4 Qa2 Qc2 Bd3 Rh4 Qb3 Ba5 Qa2 Rb4 Qc4 Rb8 Qb3 Nh3 g1R Be7 Rh1 Ng1 Rh4 Kg2 Re4 Kh2 Qd5 Qe8 Nh4 Qd8 Bh6 Qh8 Bf8 Rc4 Rc1 Bd6 d1R Bd2 Rc7 Rc3 Rh7 Rc7 Rd7 Qb3 Rc5 Qc3 Rb1 Qc2 Rbb4 Be7 Rbd4 Bd8 Bd6 Be7 Rb2 Bf8 Be7 Bh6 Bf8 Bg7 Nf1+
1rk4N/2BN3r/3bP1n1/1QQ1n1Kn/2Bp1R1n/4nbq1/2NPbp2/1R1rN3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 d5 Kf3 Kd7 Kg4 f5+ Kh5 a5 c4 b3 e4 a4 g4 b2 c5 h3 g5 f3 b6 h2 e5 a3 b7 a2 g6 d4 g7 f2 Nc3 b1R Nh3 f4 Na4 f3 Nf4 Bd6 Nb2 Nc6 b8Q Nge7 g8N Ba6 Qe2 Ng6 Ne7 Qg8 Kg5 h5 Qeb5 h4 Q8b6 h3 Nd1 Rh7 Ne3 Rb8 Bc4 f1N Nd3 f2 Nc2 Ng3 Ba3 Nh5 Nde1 Rd1 Rb1 a1N Rg1 h1B Rg4 h2 Rf4 Bf3 e6+ Ke8 Bb4 h1N Ba5 N1g3 Qa7 Nf5 Bc7 Nfh4 Qab6 Bc8 Qa7 Bd7 Qaa5 Nce5 c6 Bc8 Qa3 Ba6 Qac5 Nf8+ Ng6 Qg7 Ba5 Qc7 Bb6 Kd8 Nh8 Nfg6 Ba5 Kc8 Bb6 Qg7 c7 Kb7 c8N Qg8 Ne7 Qg7 Nc6 Kc8 Bc7 Qg8 N6b4 Qg7 Nd5 Qg8 Ncb4 Nc2 Nf6 Ne3 Nbc2 Qg7 Nd7 Qg8 Qbb4 Qg7 Ba2 Bae2 Bc4 N5g4 Qbb5 Qe5+ Rf5 Qg3 Rf4 N4e5+
1krq1r2/b4R2/2npP3/1NQ2rr1/n1n2Rp1/R7/RPN1BBb1/Kb2Q1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 e4 f5 h4 g5 c4 f3 Kc2 g3 e5 a4 b6 a3 b7 f2 h5 a2 c5 d3+ Kc3 f4 c6 d2 c7 g2 h6 g4 h7 f3 Rh5 Na6 b8Q Bc5 Qb5 Ba7 Qa5 d6 Ne2 Kd7 Rh3 g1R Qe1 d1N+ Kc2 Nc5 Nbc3 Na4 Qc5 Ne7 Nd4 Nc6 Be3 Rf8 Be2 f1R h8R f2 Ncb5 Bb7 e6+ Kc8 R8h7 Rf5 Rb1 a1R Rf7 Ra3 Rf3 Rg5 Ra1 Rc3+ Kb1 Rc4 Bc1 Ne3 Ra2 Rc3 Ra3 Nc4 R3f4 Rf3 Ka1 Rb8 Re4 Rff5 Be3 Ba6 Ra2 Kb7 c8R+ Ka8 Rcc7 Rc8 Rf4 Kb8 Rb7+ Ka8 Na3 Nd2 Rh7 Re5 Rf5 Bd3 Nab5 Nc4 Rh3 Bb1 Nc2 Rd5 Rc7 Kb8 Rff3 Rd4 Rhg3 Rf4 Bd4 Rf8 Rcf7 Rg2 Rh3 Rfg1 Rfa3 f1B Rhf3 Rf2 R3f5 Rf4 Bf2 Bg2 R5f6 Re4 Rf5 Re5 Rf4 Ref5
4k3/rBnb1r1r/1p1B2P1/1nr5/RQ5q/1nBQNp2/PKB4r/1b3RbN w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 c5 d4 h5 Kd2 f5 Kc2 h3 g4 b3+ Kc3 h2 e5 b6 d6 c4 e6 h4 e7 h3 g5 b2 d5 f3 g6 f4 Qd3 f2 Bd2 Bd7 Ne2 Nc6 Na3 b1B Nc2 Rh7 Ne3 Ra7 Kb2 Nf6 Bc3 Nd4 Ng3 Nb5 Bg2 f1R Rg1 Rf7 Nh1 Rc1 Bf3 Bg7 Rg4 Bh8 Bd1 f3 Bc2 Bg7 Qd4 Bh6 Qc5 Bf4 Qa3 Be5 Qb4 Bd4 Ng3 h1R Rf4 Rh2 Nh1 Be6 Rh4 Kd7 Rf4 Ne8 Re4 Nec7 e8B+ Kc8 Rg4 Qh4 Bc6 Kd8 d7 Bc5 Bb7 Ke7 d8B+ Ke8 d6 Bd7 Nf5 Bg1 Be7 Rd1 Bg7 Rd5 Bc3 Rc5 Re4 Re2 Ne3 h2 Ng3 h1R Rg4 Rh3 Nh1 Reh2 Rf4 Qf6 Rd4 Rhh7 Bf8 Bg4 Rf4 Qh4 d7+ Kd8 Bd6 Bh3 Bg7 c3+ Kb3 Na3 Bde5 Rh6 Qb5 Rg2 Bf5 c2 Kb2 c1N+ Bc2 Rh7 Ra4 Nb3 Qb4 Rh2 Bc3 Nab5 Bge5 Be6 Bf4 Bd5 Bfe5 Bc6 Bf4 Ke7 Bfe5 Kf8 d8Q+ Be8 Qd3 Bd7 Bf4 Ke8 Bd6 Nd2 Bb3 Bc2 Rf1 Bb1 Bc2 Nb3
1b4rQ/1QP3rn/pB1bb2k/1RN5/1Q1qrnR1/QP5b/Bp2nb2/1N3K2 w - - 0 1 illegal: No proof kernel
3N3q/2p2nb1/2rr3Q/n1N1RB1p/QR1b2bb/4QQ1P/1P2brK1/n3kB2 w - - 0 1 illegal: No possible last move
R4r2/P2N1P2/1Nb1nQ1r/4b1nn/p3k1BN/2br3p/1KN2b2/Q2q1RBb w - - 0 1 illegal: No possible last move, all moves rejected
1r3B1k/P4p1B/1B4n1/nn1QR3/1rnKQp2/4P1bb/1r2qNRb/2nN3B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 d4 h5 a4 c5 g4 h3 a5 h2 g5 h4 a6 c4 a7 c3 g6 b3 d6 b2 g7 b4 d5 h3 Bg2 c2 Bf1 b3 Ra4 Be7 Re4 Nc6 Qe1 Na5 Qc3 Rb8 Nf3 Rb4 Rg1 h1R Rg5 h2 Qd3 Bh3 Na3 b1N Nc4 b2 Bg2 Na3 Ne3 b1N Ne5 N3c4 Kf3 Nc3 N5g4 Nb5 Ba3 c1B Nd1 Be3 Ree5 Bg1 Ke4 Qc8 e3 Qa6 Ngf2 Rb2 Rg3 Rb4 Rf5 Bh4 Re5+ Ne7 g8B Kf8 d7 Ng6 d8Q+ Kg7 d6 Rb2 Rg4 Bg3 Bh7 Rf8 d7 Kh8 Qa8 Rb8 d8B Qb7+ Rd5 Bh4 Bb6 Qd7 Rh5 Rc2 Rg3 Qg4 Kd5 Qe2 Bf8 Ra2 Nb2 Ra4 Bf3 Rb4 Rg2 Bg3 Re5 Ncd6 Qe4 Ndc4 Ng4 B1f2 Qb7 Rb1 Nd1 Bg1 Rf2 h1N Rh2 Nf2 Bh1 R1b3 Rg2 Nd3 Ngf2 Nc1 Kc5 B1h2 Qbd5 Nc3 Kd4 Rb1 Re7 R1b2 Re5 Nb5+
nN2n1q1/5n1q/b1R3qR/R6q/NP1r1r2/p1QBK3/k2PpQq1/B1R1b3 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 g4 Ke6 b4 Kd5 f4 a5 f5 c5 g5 e5 b6 h5 b7 a4 g6 h3 g7 e3 f6 h4 f7 e4 Qb3 a3 Qa2 h2 Bg2 h3 Qc2 c3 Bf3 Kc4 Bh5 Bd6 f8Q Bg3 Qd3+ Kb3 Bf7+ c4 Bb2 Nf6 g8R Ne8 Qd4 c2 Nc3 c1N+ Kd1 Nd7 b8R Ba6 Nge2 Nb6 Rb7 Be1 Rgg1 Rh4 Nb1 Nd3 Nbc3 Ne5 Bd5 Nf7 Bc1 Rf4 Rg3 Qc7 Ra2 Rd8 Qe5 Na8 Ra7 Rd7 Rf1 h1Q Bb2 h2 Rg6 Qg2 Na4 h1Q Ba1 Qh5 Rc2 Qd6 Bb7 c3 Rh6 Qdg6 Bc6 Qh7 Bb5 Rd4 Bd3 Q5g6 Rc1 Ka2 Rfh1 Qgg8 Rc6 Qhg6 Rh6 Q6h7 Ng1 e2+ Kc2 e3 Nf3 Q8g6 Qc7 Qhg8 Ne5 Bf2 Qc5 Q6h7 Rb6 Rde4 Bb5 e1Q Kd3 e2 Rb1 c2 Nc6 c1Q Nb8 Bc8 Ra5 Ba6 Q7c6 Qb2 Rc1 Qf6 Qd4 Qeg1 Qcc3 Q1h2 Rc6 Be1 Qf2 Rd4+ Ke3 Qfg6 Bd3 Qhh5
4q1K1/5R2/1nqNQrnb/4N1Qn/1PRp3b/pNn1B2B/n2PkN1r/4q3 w - - 0 1 legal: proof: f4 g5 h4 gxh4 a4 b5 b3 bxa4 f5 Bb7 f6 Bd5 b4 Bb3 cxb3 exf6 Rh2 f5 Rh1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 g3 a5 b5 f5 b6 h5 b7 d5 Ke6 c5 Kf7 a3 e5 h3 b4 c4 e6 f4 e7 c3 e8Q h4 Ba6 a4 Be2 a2 Qf1 h2 Bd3 c2 Ne2 f2 Qh3+ Kf3 Nbc3 f1N g4+ Ng3 g5 a3 g6 Bh6 g7 Ne7 g8N Ng6 Bc4 Nd7 b8N Ra6 Re1 h1N Bb5 Nb6 Qf5 h3 Rf1+ Nf2 Ne4 h2 Nd6 h1Q Bd7 Nh5 Bb2 c1N Qee6 Qc8 Rb1 a1B Nf6 Na2 Nfe4 Rh7+ Bg7 Bf6 Rbc1 d4 Rc4 Bh4 Nc1 Qg2 Nb3 Ke2 Qfd5 f3 Qg5 Nd1 Nc6 f2 Ne5 Qc6 Kg8 Ndc3 Qef6 Qa4 Bh3 Qe8+ Bf8 Qf3 Qe6 Qf6 Rb1 f1Q Nf2 Qh1 Rg1 Qfe7 Rg3 Qe1 Rf3 Qb7 Rf7 Qbc8 Qd8 Qec6 Be7 Q8d7 Bg5 Qe7 Be3 Qee8+ Rf8 Raa7 Qdf6 Raf7 Qg5 Rf6 Qd7 Bg3 Nef7 Bg7 Ne5 Nhf4 Bg2 Rh2 Bh3 Bh4 Qdf5 Nh5 Qe6 Qe7 Rf7 Bh6 Rc5 Qed7 Rc4 Qe8+
RK2N1qb/r2r4/Q1B3rk/1Qn4p/b3B2q/B1b1P1n1/2pPr3/2N2rRB w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 b5 Kf3 c5 Ke4 f5+ Ke5 Kf7 a4 Kg6 g4 h5 e3 c3 a5 c4 a6 c2 a7 b3 Rh4 f3 Rh1 c3 Ra3 f2 Ra5 f4 Be2 f1Q Ra1 b2 Ra6+ Nf6 Bf3 b4 Bd5 b3 Ra3 f3 Bc6 f2 Ne2 Bg7 Rg1 Bd7 Kd6 Qh3 Qf1 Qg8 Kc7 Qh4 Bh1 Kh7 g6+ Kh6 Ra5 Bc6 Na3 b1R Nc4 b2 Nd6 Rh7 Ne8 Bh8+ g7 Ba4 Kc8 Ne4 g5+ Kg6 Kb7 Nd7 Kc7 Rd8 a8B Ndc5 Bc6 Rd7+ Kb8 Ng3 Ra7 Ra1 Ra8 b1R+ Bb2 Rd1 Ba3 Rh6 Nc1 Re1 Qa6 f1R Qb5 Re2 Qa6 Qh7 g8B Ra2 Bgd5 Qg8 Bdf3 Kh7 Bfe4+ Rg6 Nd3 c1B Qb5 Bb2 Nc1 c2 Qa6 Nf5 Qb5 Re6 g6+ Kh6 g7 Bc3 Qa6 Ng3 Qb5 Qh7 g8Q Rg6 Qgc4 Qg8 Qa6 Ra1 Qcb5 Rff7 Nb3 Raf1 Nc1 Ra7 Na2 Rh7 Nc1 Rhd7
nQR5/1n5k/1r1QQK2/q2N2P1/b1p1Pq1n/pBRQ1q1N/nB1b4/r6n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 Kf7 g4 Kg7 d4 a5 e4 h5 d5 h3 d6 c3 b6 c4 b7 h4 d7 c2 b5 a4 b6 h2 g5 h3 Qe2 Rh6 Ra3 Bb4 Qg2 Nc6 b8Q Bd2 b7 Nge7 Bb2+ Kh7 Bc1 Nd5 Re3 Qa5 d8Q Bd7 Ne2 Nb6 Ba3 c1N Qf8 Nd8 Nd4 Na2 Bb2 Ra6 Ne6 Na8 Qfd6 a3 Qe2 Rb6 Qg2 Ba4 Bd3 Rh4 Rf1 h1Q Nc3 h2 Qc8 Rh5 b8Q Nb7 Rb1 Qf1+ Qf2 h1N Bc2 Rh2 Qd3 Rg2 Bb3 Rg1 Nd5 Qc1 Qfe2 Re1 Kg2 f3+ Kh3 f2 Nef4 f1N Qe6 Nfg3 Qh2 Qd1 Kh4 Qf3 Nh3 Rg1 Rf1 f4 Rf2 Ra1 Rf1 Qf2 Kg4 f3 Rd1 Nf5 Qhd6 Qf1 Kf4 f2 Ke5 Qe2 Kf6 f1Q Rf3 Qe3 Rc1 Qd1 Rc3 Qf4 Qbf8 Nh6+ Ke7 Qf5 Qfb8 Qg4 Rf8 Nf5+ Kf6 Qdf3 Rd8 Qgf4 Rc8 Nh4+
N1B2B1q/3b1qn1/1B2R3/p1qQQnbN/3R2Kp/B2r3n/P3rk1P/5nn1 w - - 0 1 legal: proof: e4 b5 b4 d5 c4 dxe4 g3 f5 g4 c5 bxc5 bxc4 Ba3 fxg4 Bb2 Qa5 Bc1 Qd8 Ke2 Kd7 d4 Kc6 f4 Kd5 f5 h5 f6 a5 f7 g5 c6 e5 c7 h4 Nf3 g3 Qc2 c3 Nbd2 e3 Nc4 g4 Qd2 Ke4 d5 c2 d6 g2 d7 g1N+ Ke1 g3 Qg2 e2 Be3 Na6 Rc1 Ne7 Qf2 g2 Nb2 Nf5 Ra1 Be7 f8B Nh3 Nd4 g1N Bc1 Nc5 Qg3 Bg5 Nd3 Ne6 Bca3 Neg7 Rd1 c1Q Ne6 Qc5 Ndf4 Qe8 d8B Bd7 c8Q Qf7 Kd2 e1N Nc7 Nc2 Ba6 Nce3 Nh5 Nf1+ Ke1 Rb8 Na8 Rb3 Bb6 Rd3 Qc6+ Kd4 Bb7 e4 Qe5+ Ke3 Bc8 Kf3 Qce6 e3 Rd2 e2 Qc4 Rd5 Rd4 Rh6 Qb5 Re6 Qc4 N1e3 Kd2 e1Q+ Kd3 Kg2 Ke4 Qa1 Qb5 Rdd6 Qb3 Kf2 Qd5 Nf3 Re1 Nf1 Re3 Nfg1 Rg3 Bc1 Rg6 Re8 Re6 Bg5 Bc7 Rb6 Bd8 Rb3 Bb6 Rd3 Qf6 Rb3 Rd2+ Ke1 Re7 Ne6 Qg7 Qaf6 Rd4 Qh6 Qf6 Neg7 Qfd6 Qh7 Qf4 Qh8 Qe3+ Ne2 Kf3 Rd3 Ree4 Re6 Kg4 Re5 Qf4 Re7 Qfd6 Kf2 Re5 Neg1 Re1 Re2 Qb8 Red2 Re6 Rc2 Qbe5 Re2
B2Q3n/7N/4r1q1/pK1PP1r1/1br2R1p/2N1B3/b1kbn1NQ/Rr2qr1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 h3 Kd2 Kd7 Kc3 Kd6 Kb4 Kd5+ Ka4 Ke4 b4 f5 g4 h5 g5 c5 b6 a5 e3 h4 b7 h2 b5 c3 g6 c2 g7 f3 b6 c4 Bg2 c3 Na3 f4 Qe2 Ne7 g8N Be6 Bb2 c1R Kb5 c2 Nh3 Rh6 Nb1 Ng6 Qd2 Bb4 Ne7 Qd6 Nf5 Nc6 b8Q Ba2 b7 Nh8 Rf1 h1R Qg8 Re8 b8N Rh5 Nd7 Rg5 Nf8 Qg6 Nh7 Re6 Qd8 Rg1 Qf2 Kd3 e4 Rh1 Qg1 f2 e5 f3 Qh2 Rg1 Bh1 R1g4 Nc3 Rb1 Ng3 c1B Nf4+ Kc2 Bg2 Be3 Nh1 Bc1 Rd1 f1Q+ Rd3 Be3 Bc1 f2 Bf3 Qd1 Ng2 f1R Bd5 Bf4 Rf3 Qe1 Bd2 Ne7 Ba8 Nf5 d5 Ng3 Bc1 Be3 Rf7 Rc4 Rf4 Ne2 Ne4 Bd4 Be3 Bb2 Nc3 Bc1 Qf6 Bd2 Qe7 Rb3 Qd8 Rb1
n4q1r/2B2rRb/1Br1QNp1/2N2B1Q/3K1bpq/6kP/r1PRrn2/2B3q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 b4 Ke5 e4 a5 h3 f5 b6 d5 b7 f3 b5 f4 b6 a4 Bb2 a3 Bg2 a2 Ba3 f2 Bb4 f1R Qe1 f3 Qc3 Kf4 e5 f2 e6 Nd7 b8B+ Bd6 b7 Qh4 e7 Ngf6 e8Q Kg3 Qce1 Ne4 Qc1 Bf4 Qe1 Nb6 Nc3 Bf5 Nf3 Bh7 Rh2 Ra6 Ne5 Na8 Na4 Rc6 Qh5 g6 Rb1 a1R Ba5 Ra2 Nc5 Re8 Ned7 Rh8 Qe2 Re1 Bh1 f1R Bbc7 Rf2 b8B Rf3+ Qe3 Nf2+ Kd2 d3 Kc3 d2 Kd4 Re2 Rb7 d1Q+ Bd2 Rd8 Qe6 Rh8 Bb6 Qf1 Nf6 Qg1 Be3 Qf1 B8c7 Qg1 Kc3 d4+ Kc4 d3 Kd4 Qf1 Bc1 d2 Ra7 Rfa3 Be4 Rf3 Bf5 d1Q+ Kc4 Qd8 Rb7 Qf8 Kd4 Qg1 Ra7 Nd3+ Rf2 Ree3 Rd2 Nf2 Bb8 Re2 Rg7 Rfa3 Be5 Ra7 Bd6 Re7 Bdc7 Rf7
2Q2rB1/NbQ2b2/4PnP1/NpBr2qR/r4p2/2Bn1k1K/4R2B/2bqrr2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f3 e4 Kd7 a4 Kd6 d4 c5 g4 b5 g5 f5 a5 h5 a6 h3 Kg3 c4 a7 h2 g6 b3 Nd2 b2 Nb3 b1Q Qc2 f2 Be3 c3 Nf3 Na6 Ne5 Bb7 Nc6 Nb4 Ra2 Bh6 Bc4 h4+ Kg2 Qd1 e5+ Kd7 d6 h3+ Kg3 Nd3 d5 Qf6 Bd4 Rf8 Bb6 Bg5 Be3 Rh5 Bb6 Rh4 a8Q Bd2 Na7 Rf4 Re1 h1R Na5 h2 Re3 Rd4 Kh3 Re1 Ra4 h1B Re2 f1R Ba2 Qd8 Qc8+ Ke8 d7+ Ke7 Rc4 f4 d6+ Ke6 Rc5+ Kf5 Bd5 Qe7 d8B+ Kg5 d7 Ra4 Bf7 Qf6 Be7 Bhd5 d8B Ba2 Rd5 Kh5 Bg1 Qf5+ Kg2 Kg4 Bh2 Bb3 Bb6 Nf6 Bb4 Ba2 Bbg1 Be3 Bg8 Bc4 Kh1 Kf3 Rc5 Bf7 e6 Qg4 Rh5 Bd2 Qa2 Qg5 Qac4 c2 Qc3 c1R Q3c7 Rc6 Bc3 Kg4 Kg2 Bc1 Bc5 Rd6+ Qc6 Rd5 Q6c7 Rfd8 Bhg1 Re8 Kh2 Kf3 Kh3 Red8 Bh2 Rf8
b2N3q/rq1q2Bk/2p5/6R1/p2QrR2/2qnP1bn/Kr1Q1QP1/QBqN4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 a5 Kd2 h5 Kc3 f5 b4 Kf7 Kb2 Kg7 d5 c6 d6 f3 e3 a4 b6 h3 b7 h4 d7 f4 b5 f2 b6 f3 Nc3 h2 Ra3 h3 Bd2 Na6 b8Q Nh6 b7 Ra7 Qc7 Nc5 b8Q Kh7 Qc1 Ng4 Qd1 Bb7 Qa8 Bd6 Qc1 Re8 Qcc8 Bg3 Qa1 Re4 Nd1 c3+ Ka2 c2 Rb3 c1Q Ne2 Nd3 Nd4 Qc3 Ne6 Qdh8 Be2 f1R d8Q Rf2 Rf1 h1Q Rb5 h2 Rg5 Qhd4 Qa5 Qd7 Nd8 Qg1 Qcc7 h1Q Qcb6 Qh5 Qc8 Ba8 Qd4 Qgh1 Qb8 Qhf7+ Qad5 Qb7 Qf4 Qfd7 Bc1 Qh6 Bb2 Qf6 Qdd6 Qh8 Q6b4 Nge5 Qff8 Nf4 Bd3 Nh3 Bb1 Re2 Qf6 f2 Qd2 Nd3 Qf3 Qc5 Bg7 Qa5 Qbd4 Qc3 Rh1 f1Q Qf2 Qe1 Rf1 Qc1 Q2b2 Qa5 Qd2 Qac3 Qe1 Rf2 Qee2 Rf5 Rf4 Rb5 Qf2 Rb2+
Rn2B2R/1k1bbNqp/1n1n2q1/p7/3b1QN1/2BP2b1/r1P1rN2/N1KbQ3 w - - 0 1 illegal: No proof kernel
Q6R/rBQ1B1np/b4nq1/p2RKnPP/2b5/2N2b2/2qbN3/2N1bNrk w - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Kf2 Kd7 g4 Kd6 c4 Ke5 h4 a5 h5 f5 b6 b3 b7 f3 Ke3 b2 d3 f4+ Kd2 e3+ Kc3 f2 d4+ Ke4 c5 e5 d5 f3 d6 e2 c6 e1N c7 Qf6 d7 Ra7 d8N Nd7 b8N Nh6 Bg2 f1B Qd6 Nc2 Ne2 Rg8 Ne6 Ba6 c8Q Nf5 N6d4 Bh6 Nbc6 Qg6 Qdc7 Nf6 Qa8 Ng7 Nf5 Nd4 Ne3 Ndf5 Rg1 Bg5 Bh1 Bg2 Nf1 f2 Ra4+ Kf3 Rd4 e4 Rd5 e3 Nb4 Bf4 Na2 Bh6 Bd2 Bg5 Nac1 Bh6 Na3 b1Q Nb5 Bg5 Kc4 Qa2+ Kc5 Qc2+ Nbc3 Bh6 Neg3 e2 Bg5 e1B Nge2 Bc4 Bh4 Bhd2 Kc6 Ng3 Kd6 N3f5+ Ke5 Ba6 Nfg3 f1B Bg5 Ne4 Bf6 Kf2 Be7 Bf3 Bg2 Nf6 g5 Rb8 Rd8 Rb3 Rh8 Rb1 Rh1 Bc4 Rh4 Ba6 Rd4 Bc4 Rd5 Ra1 Nd4 Kg1 Bh1 Ba6 Bg2 Bfc4 Nf1 Bd1 Be4 Bf3 Nde2+ Kh1 Rd6 Rb1 Bb7 Rb6 Rd7 Rd6 Rdd8 Rd4 Rd7 Rg4 Rd5 Rg1
k5qK/N4R1p/2rBpN2/2b1qB2/b2bbn1Q/P5QP/2BR2nb/1n1rB3 w - - 0 1 legal: proof: e4 d5 c4 dxe4 f4 g5 b4 a6 b5 axb5 fxg5 bxc4 Ke2 c3 Kf2 Qd3 Ke1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 f5 Ke5 b5 d4 Kb7 g4 c5 h3 b4 d5 e3 a3 f4 d6 e2 g6 e1Q+ Qe2 e6 g5 c4 d7 b3 g7 c2 g6 b2 Bd2 c1B Ra2 c3 Qe3 f3 Be2 c2 Qf4 f2 Nc3 f1B Nd5 b1N Nf3 Ra6 Nf6 Bb2+ Nd4 c1B Qh4 Nh6 g8B Bc5 g7 Ka8 Bf7 Qg8 d8B Bg2 Be7 Bd7 Rf1 Nf5 Bg6 Be4 Bg4 Ba4 Bd6 Ne3 B4f5 Rc6 Rf2 Qe2 Be1 Na6 Rf4 Ba1 Rd2 Nb4 Rf3 Nbd5 Rf2 Nbc3 Nb5 Ng2 Na7 Ndf4 Rf1 Qb8 Rf3 Rd8 g8Q Rd7 Qg7 Qg8 Rf1 Qb5 Rf3 Bd5 Bc2 Be4 Bf5 Bab2 Qgg3 Nb1+ Rd4 Be3 Rf1 Bbc1 Rd2 Bg1 Rf3 Bb2+ Rd4 Ne3 Ne8 Bd5 Kf6 Qb7 Be5 Ne2 Bg6 Be4 Rf1 Rd5 Bd6 Ng2 Rf4 Qb3 Rf1 Bh2 Rf2 Qh8+ Kf7 Qf6+ Kg8 Qe5 Rf7 Nef4 Nf6 Qb8+ Kg7 Ba1 Bf5 Qe8 Rc4 Rd3 Rd4 Rd1 Rd2 Bad4 Bf2 Qb8 Be1 Qb3 Kg8 Qf3 Kg7 Qg4+ Kh8 Qg8+
2q4b/1Nqk1B1p/Pb2R1P1/3qB1R1/2r2b1r/2nQb3/Kn1pN3/Q2b1B1B w - - 0 1 illegal: No proof kernel
6bR/2rrk1p1/1Nb4n/1q3QPb/1qBQ2b1/RN5P/B1b2n1p/nB2K1B1 w - - 0 1 illegal: No proof kernel
b2r1bB1/2r2PKR/3qqpp1/BP3R1R/n6N/1r1Q1q2/R5Nk/2Qnq2q w - - 0 1 illegal: No proof kernel
1nr1N3/4NppN/3b2b1/1r2QQR1/KBn3q1/2R1P3/PNB2q1b/2qq1q1k w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Kd7 d4 Kd6 Kd2 c5 Kc2 b5 Kb3 g3 h5 g2 h6 f3 e3 f2 h7 Ne7 Rh4 Qd7 Qg4 Ra5 Ba3 Ng6 Nd2 Ne5 Ngf3 g1B Bd3 f1Q Rc1 Bh2 Ng5 Nc4 Bc2 Qf2 Rh5 Ba6 Qe4 Qg4 Qf5 Rg8 h8N Bc8 Qe4 Bf5 Nh7 Bg6 Rg5 Be7 Qf5 Rc8 Nf1 Ne5 Nd2 c4+ Kb2 c3+ Kb3 Nc4 Qe5+ Kd7 d6 Kc6 d7 Bd6 d5+ Kc5 Bb1 c2 d8Q Bf4 Qdf6 Bh2 Rf1 c1Q Bc2 Bf8 d6+ Kc6 d7+ Bd6 Nf3 Qd1 Qef5 Qc1 Ne5+ Kd5 d8N Qcd1 Qd7 Qc1 Nd3+ Ke4 Qfe7+ Kf3 Ne6 Kg2 Nc7 Qd1 Re1 Qc1 Re2 Kh1 Nb2 Qd1 Ne8 Qdf1 Bb1 Qc1 Qf5 Qcf1 Kc2 b3+ Kc3 Qd1 Qee5 Qc1+ Rc2 b4+ Kd3 Rac5 Rc3 Rb5 Bc2 Qgg2 Na4 b2 Kd4 b1Q Nb2 b3 Bb4 Qg4+ Kd3 Bh5 Ng6 Qa1 Ne7 Bg6 Na4 Qgg1 Kd4 b2 Kd3 b1Q Nb2 Qcf1+ Kd4 Rb7 Kd5 Qbc1 Kd4 Qg4+ Kd5 Bc7 Kc5 Qcd1 Qff4 Qac1 Qff5 Bb6+ Kb5 Bc7+ Ka4 Bd6 Qd7 Rb6 Qdf5 Rb5
2r3qN/Bq2PRr1/1b2rn2/n1PrQKQB/3p1N1n/1R2Nb2/2N2rp1/7k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 Kh4 c4 f5+ Ke5 g5 e4 d5 b6 a5 h3 Kg3 b7 d3 h4 f3 h5 f4 b5 f2 b6 f3 h6 a4 h7 a3 Qc2 d2 Qa4 d1R Qb3 a2 Bh3 f1R Nd2 Nf6 Qb2 f2 Rb1 a1N Ndf3 Nb3 Qc3 Ra6 Be3 Bc5 Nd2 Nbd7+ Kf5 Qg8 b8N Bb7 e5 Nf8 e6 Ng6 e7 Na5 Rb3 Ba8 b7 Re6 Bg2 Bb6 Nh3 Rg1 Qa1 f1R+ Nf4 Rf2 Nc6 Qc8 b8Q Qb7 Qd4 Rc8 Bf3 Rgg2 Rf1 Kh2 h8N g3 Qe4 g4 Qee5 Rg1 Be2 g2 Nd4 g3 Nc2 Kh1 Bc5 d4 Qbd6 Re1 Qdd5 Rd6 Bh5 Rd7 Qed6 Re6 Q6e5 Rdd6 Qf3 Rd5 Qg4 Rg8 Qg5 Rg7 Ra1 Rc1 Nf1 g1Q Raa3 g2 Rf3 Qh2 Rab3 Qg3 Nfe3 Qh2 Bg4 Qh7 Bh5 Qg8 Bd6 Rc5 Bb8 Rc8 Ba7 Rb1 Ra3 Rb5 Rb3 Rd5 c5 Rdd6 Nh3 Qd7 Bg4 Nd5 Bh5 Bc6 Ke4 Qb7 Rf7 Nf6+ Kd3 Bf3 Nf4 Nh7 Qgf6 Rd5 Qfg5 Bg4 Ke4 Bf3+ Kf5 Nf6 Rc3 Kh2 Rd3 Kh1 Rb3 Nh4+
2Q1q1k1/R3P1b1/Q1n1P1p1/Nrq2nBN/2q3B1/q4p2/R4n1N/K1rq2Nb w - - 0 1 illegal: No possible last move, all moves rejected
N2qbB1N/3P1RKn/q2Nb1QP/r3k1b1/Nn2r1b1/2RBp3/1Q1p4/1r2b3 w - - 0 1 illegal: No proof kernel
bnRK3b/B1np1k1N/1N2b3/1PN2pb1/5Pr1/1q1nN3/2q4b/R2QB1Qr w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 e5 g5 e4 g6 hxg6 e3 g5 Bc4 g4 Bd3 exd3 Kd2 g5 h4 f5 c4 a5 f4 g3 b4 g4 c5 a4 h5 a3 h6 a2 e4 g2 c6 g3 b6 Ne7 c7 Nec6 b5 Qh4 b7 Qh2 e5 Na7 e6 Nac6 e7 Nd8 h7 Bh6 Nh3 g1Q+ Nf2 g2 Ne4 Kf7 e8N Bg5 Nc5 Ne6 Nc3 Qf1 Ba3 Qf3 Nd5 Qfg3 Rc1 a1B Nef6 Rg8 h8Q g1B+ Qe2 Qhf2 Ne3 Bh2 Bb4 Bb2 Bc3 Ra1 Nh7 Qgf3 Ba5 Qd5 Qe5 Qb3 Qd5 Qg2 Qf2 Qe4 Qg1 Rb1 Ke1 d2+ Kf2 d1B Be1 d3 Qd4 d2 Qd3 Na6 b8B Bh8 Ba7 Bb7 c8N Ba8 Nb6 Nb8 Qc2 Bh5 Qd1 Nc7 Rc3 Bg6 Ke2 Qc6 Kd3 Rg7 Kd4 Bh5 Qf3 d1N Ke5 Nf2 Qd1 Be2 Rc1 Bc4 Rc2 Qe4+ Kd6 Be6 Rc4 Qec2 Rc3 Nd5 Rc4 Nd3 Rc3 Nf6 Kc7 Ne8+ Kc8 Nc7 Rc4 Bh6 Kd8 Rg4 Ne4 Ne8 Rc8 Nc7 Nc5 Bg5+ Nf6 Qg2 Ba5 Nba6 Qc2 Qe4 Qgc1 Ne5 Qd3 Bh6 Nh7 Nb8 Qcf1 Qg2 Qe1 Qgc2 Qg3 Rb2 Ra1 Rb1 Qf2 Re1 Qd1 Rh1 Qfg1 Nd3 Be1 Bg5+
kb3N1R/2PRB1p1/6P1/1Qq1n2q/2pN1n2/bn1rn1R1/BnKb3R/Q4r2 w - - 0 1 illegal: No proof kernel
1K2b2R/QbP1pBn1/nrrBN2q/4N3/B1qR1nn1/p3P1Q1/6q1/1B1n1k2 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 a4 cxd4 g5 Bh6 g6 Bg5 hxg5 bxa4 Kd2 a5 Kd3 h5 Kc4 d5+ Kc5 Kd7 b4 Ke6 c4 Kf5 g7 Ke4 e3 f5 g6 d3 b5 a3 b6 f3 b7 h4 Qe1 f4 Qe2 a2 Bd2 f2 Nh3 f3 Bc1 d4 Rh2 a4 Bg2 f1N Qd2 a3 Kb5 Nh6 g8B Bd7+ Kc5 Be8 g7 Qd5+ Kb6 Na6 b8Q Ng3 c5 Ngf5 c6 Qc4 Kb7 Ng4 c7 Rh6 Bb2 Rc6 Qd8 Rb8+ Ka7 Rbb6 Qa5 d2 Rh1 Kd3 Ng5 Ke2 Qd6 d1N Qg3 h3 Ne6 f2 Bf7 f1Q g8B d3 Be5 h2 Be4 d2 Bd6 Nc3 Bc2 d1N Nd2 Qf3 Bh7 Nd5 Ba4 Ng7 Bb1 Qg2 Nf3 Nf4 Qc5 Qe4 Ne5 Qc4 Rf1 h1B Ka8 Rb3 Qa7 Rbb6 Rf2+ Ke1 Rd2+ Kf1 Rd4 Nf5 Bbc2 Ng7 Rc1 a1Q Bb1 Qab2 Rc2 Qh3 Rh2 Qh6 Rh5 Qg2 Rh3 Qf6 Rh8 Qh6 Bf5 Rc5+ Qb7 Qd2 Bb1 Bhc6 Ka7 Qg2 Qb8 Bb7 Qa8 Nb4 Kb8 Rcc6 Qa7 Na6+
1kbB1n2/2pq4/3RrN2/1B4b1/Q1q1bq1R/n2P1BpB/1P2NbQr/3K3b w - - 0 1 illegal: No proof kernel
8/RP4B1/nkr1r1B1/rp1qPKb1/1R3q1p/1qRN4/Q1q2qQ1/nN3b1R w - - 0 1 illegal: No possible last move, all moves rejected
bbn1b1b1/Bp1P3r/1Np2Rq1/4q1Bq/P1B5/r1B1NQR1/n3Q3/1k3bK1 w - - 0 1 illegal: Other
B1B5/1pP2Brn/Qq2Nq1k/2nN2p1/2q5/b1P2qR1/r4nQK/2Bb1q1R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 f5 Kg2 Kf7 h4 Kg6 e4 d5 a4 b3 c6 b2 a5 d4 a6 d3 c7 g3 c3 f3+ Kh3 f2 e5 g2 a7 d2 e6 f4 h5+ Kh6 Bc4 f1Q Nf3 g1N+ Kh2 g5 e7 Bg4 e8B Ba3 Qe2 d1Q Be6 Na6 Qg2 Qc4 B8f7 Rh7 Bc8 Qf6 Nbd2 b1Q Nd4 f3 Ne4 f2 Ne6 f1Q Ra2 Qdf3 Rb2 Qg6 Nf6 Nh3 Nd5 Nc5 Re2 Qbb4 Re3 Qgf6 Rd3 Rg7 Re3 Kh7 h6 Nf2 Rd3 Qb6 Re3 Q3f5 Rg3 Bd1 Re3 Kh8 Rg3 Qf3 h7 Rg6 Nd8 Kg7 Ne6+ Kh6 Nd4 Qfc6 Ne6 Nf6 h8Q+ Nh7 Qd4 Rg7 Qd3 Qcb3 Qa6 Qbc4 Nf8 Qg6 Ne6 Qgf6 Bd7 Rh8 a8B Rd8 Bc8 Rd6 Nb4 Rd2 Nd5 Ra2
q5Rb/rppq1kBr/N2B4/P2K3n/QQ4Q1/6Q1/rPn1b3/RN1nr2r w - - 0 1 illegal: No proof kernel
2r2Q2/2R2Rn1/2pbkr2/Brp2N1r/1N2KrqQ/3P4/1P2N1rN/1n1r1B1b w - - 0 1 illegal: No possible last move, all moves rejected
QNq1b3/5k1q/n4q2/B1r1R3/r1PR2R1/2p1NK2/1bnpP2q/QBr1R1b1 w - - 0 1 illegal: No proof kernel
n7/Rr2b3/Br1B1Qn1/6Qb/1KP1n1Nr/2pRRNqP/p1k1q3/1R2n2q w - - 0 1 illegal: No possible last move, all moves rejected
nk1q1QR1/N4B2/B4Bq1/bB3R2/Q1p4P/2Pq1n1N/pK1rb1b1/4n1br w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 d4 exd4 Qd3 g6 Qf5 g5 axb5 gxf4 g5 Qf6 Qh3 Qd8 Qg4 hxg4 Kd1 a5 e4 f5 b4 d5 h3 Kd7 b6 c5 e5 d3 b5 d4 b7 Kc7 c3 a4 e6 a3 g6 c4 e7 d2 Kc2 d1N e8B g3 g7 a2 Bd7 f3 Ne2 g2 Nd2 g1B Bg2 f4 Bg4 f2 Ba3 f1Q Bc1 f3 Ne4 f2 Bg5 Nf6 g8B Nb2 Bf7 Nc6 Nd6 Nd5 Bf6 Ne5 Nf4 Nb6 Bc6 Qg2 Rf1 d3+ Kc1 Bd7 Nc8 Bb4 Na7 d2+ Kc2 Be8 Bc8 Nbd3 Rh2 Qg7 Rg2 Ne1+ Kb2 d1Q Rg3 Qh7 Rg8 Qg6 B6d7 Ba5 h4 Kb8 Bc6 N5f3 Nh3 Q1d3 B6d7 Kc7 Bc6 Rb8 B6d7 Na8 b6+ Kd6 Bb5 Bc6 Ba6 Rh5 Bd7 Rg5 Bde8 Rg2 Bd7 Be4 Bde8 Rh2 Beb5 Rc8 b8Q+ Rc7 b7 Rh1 Qc8 Rc5 Re8 Rd5 Rg8 Rd4 Qg4 Kc7 Qd7+ Kb8 Qe8 Ng5 Qf8 Bg2 Qb4 Ngf3 Qa4 Nc2 Re1 f1B Re5 Nce1 Rf5 Kc7 Nc6 Be2 b8Q+ Kd7 Qf4 Rd5 Qh6 Kc7 Na7 Kb8 Qf8 Qe4 Bh8 Rd1 Bg7 Qd3 Bf6 Rd2+
R5R1/nr2rr2/1qq4Q/1Pb2n2/Nq3r2/p1b1PNRp/1Qb1R1K1/3kBB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 Kd6 b4 Kd5 g4 Ke4 d5 a5 b6 c5 e3 f5 b7 h5 g5 h3 d6 f3 b5 c3 g6 a4 d7 c4 g7 f4 Bb2 c2 Ra3 c1B Qb3 h2 Ne2 c3 Rg1 Kd3 Rg4 h1Q Rh4 Ne7 g8Q Rh7 Ba1 Bb2 Qh8 Nf5 Qb4 Kc2 Rh2 h4 Rh3 Bc5 Qg8 Kd1 Nd2 c2 Qa2 c1Q Qd5 Nc6 b8R Re7 Qdc4 Qc3 Bg2 Qb6 d8R Raa7 Rd6 Rab7 Qe6 Na7 Rg3 Bd7 Qd4 Qb4 Bf1 Bc3 Rbg8 Be8 Qh6 Bg6 Ra2 a3 Rdd8 Bh7 Ra8 Bg6 Ng1 Bh7 Qh8 Bg6 Nb3 Bh7 Bd3 Bg6 Kf1 f2 Re2 Qhc6 Nf3 Bh7 Kg2 f1R Bb2 Bg6 Bc1 Bh7 Bd2 Bg6 Kh3 Bh7 Be1 Rf2 Ng1 f3 Qd4 Rf1 Qh8 f2 Nf3 Ng7 Bc4 Bc2 Kg2 Nf5 Qe5 Bd2 Qb2 Bc3 Nd2 Rh1 Ne4 f1R Ng1 Rf4 Nf3 Bd6 Nc5 Rf1 Na4 Bc5 Bd3 Rfe4 Ne5 Rf7 Bc4 Rff4 Nf3 Re6 Rf2 Re8 Bf1 Ree7 Re2 h3+
bQ1b1r2/nR5r/5Q2/rpR1q2B/n3bb1N/Bn1PP3/1qB1B1pK/2k4N w - - 0 1 illegal: No possible last move, all moves rejected
q3r2q/N2qk2n/4b1p1/Pb1Bbn2/2Q4R/1Nr2n2/1bRpQPR1/2BR2K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 c4 e5 h4 d5 a4 b5 h5 b3 a5 g3 c5 d3 c6 d2+ Ke2 d4 h6 g2 f6 b4 f7+ Ke7 h7 d3+ Ke3 g6 c7 b2 Be2 b3 Nh3 g1N Ng5 e4 Ne6 Nd7 Ra2 Bg7 f8R Nf3 Qg1 d1Q Rh5 Be5 Ra4 Ndf6 Rh1 Nh6 Nd4 Be6 Na3 b1Q c8Q b2 Nab5 Qa1 Nb3 b1B Qc4 Rc8 Na7 Rc7 Rg8 Qa8 Rc8 Re8 h8R Nh7 Qe1 Bb2 Kf4 e3 Kg3 Nf5+ Kg2 Rc5 Bf1 e2 Qd2 e1B Qe2 Bec3 Ra3 Nhg5 R8h4 Be5 Rg1 d2 Kh1 Ba2 Bg2 Nh7 Rf1 Qc2 Rd1 Qd3 Ra4 Qd7 Rh2 N3d4 Bd5 Nf3 Rg2 Bb1 Rc6 Bd3 Rc7 N3h4 Kg1 Rc6 Qa6 Rc3 Rc8 Bb5 Rf4 Rg3 Rc2 Rf3 Qc8 Rc3 Qcc4 Nf3+ Kh1 Bb8 Rgg1 Re3 Be4 Ba3 Bd5 Qh8 Rg2 Be5 Re4 Bab2 Rh4 N3d4 Kg1 Rg3 Qg4 Rc3 Qge2 Nf3+
1qQ5/2r1rr2/rn1BP2p/1b2qR2/2nNN2P/3Nn2k/Q1b1q1Rp/1K1BN3 w - - 0 1 illegal: No proof kernel
1n6/1b1rn3/2P2N2/pK1B2Qn/rP2RR2/1BB1rqBq/bp3Nk1/2bQ3n w - - 0 1 illegal: No proof kernel
RN2b2Q/Q2b1q2/r1PR1Pn1/pk4p1/3bR1n1/3Rb3/rq2qnB1/1KN3B1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 a5 f4 e5 h4 d5 c4 Kd7 Kc2 g5 b4 d3+ Kb2 d4 c5 d2 h5 g3 b6 Kc6 b7 g2 h6 e3 h7 e2 f5 e1Q f6 e4 Be2 e3 Nc3 d3 Rh3 Qd5 Kb1 Nh6 Bf1 e2 Ne4 Kb5 c6 Ra6 Ra4 Ng4 Nc5 Qf2 Nd7 e1Q Ne2 g1B Bg2 Bc5 Bb2 Re8 h8Q Qf7 Nc1 Be3 Bd4 Qee2 Qb3 d1N Qe6 d2 Qe7 Bf4 Rd3 Be3 Bb6 Rd8 Rd6 Bd4 Ra3 Re8 Qe3 Re5 Rd3 Rc5 Ba7 Rc2 Bc5 Ra2 Bb6 Kc4 b5 Kb4 Bc5+ Ka4 b6 Kb5 Nf8 Nd7 b8R Nde5 b7 Bd7 Ra8 Be8 Nd7 Ng6 Nb8 Bd7 Bf1 Qh2 Bg2 Ndf2 Qe7 Be8 Qc7 d1B Qb6+ Kc4 Qa7 Kb5 Rd2 Nh3 Bd5 Bb3 Bh1 Bdf2 R2d4 Qhe5 Nd7 Be6 Rd3 Ka4 b8R Qd4 Rb6 Qc3 Nb8 B6d7 Rb2 Qce5 Rc2 Kb5 Rc4 Qc3 Re4 Qe5 Be3 Qc3 Bf4 Bd4 Bh2 Bge3 Bg1 Nhf2 Bg2 Qcb2#
rr3BRR/nbR3b1/P3K2r/1n3B2/1PQR1qQN/4kb1p/2p2nr1/2q3N1 w - - 0 1 illegal: No proof kernel
1n4Q1/2r1n1RQ/p1r1bRqn/2N2q2/4q3/K3PB1r/1bPp2nR/Bk3N1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 g4 Kd5 b6 Kc4 b5 d5 b7 h5 b6 f5 g5 h3 g6 h4 g7 d3 Nf3 d4 Rg1 h2 Ra6 h1R Rg4 h3 Rg6 h2 Ra2 a6 Ng1 f3 Ra3 f4 Rb3 f2 Bg2 f1N+ Ke1 f3 Bf4 Qf6 Nh3 Be6 Ng5 Rh3 Be5 Ng3+ Kd2 f2 Kc1 f1Q Kb2 d2 Rf3 d3 Ne4 Nf5 Nc5 Ra7 Ka3 Ngh6 g8Q Ne7 Rg7 Qg6 Rf6 Qff5 Bf3 Rf1 Bb2 h1Q Ba1 Rg1 Qe1 d1N Qh4+ Rg4 Qh5 Ne3 Qh4 Ng2 e3 Rd4 Qh5 Rd6 Nd2+ Kb5 Qh4 Rc6 Nf1 d2 Qh5 Kc4 Qh4+ Ng4 Qhh8 Nh6 Qhh7 Nd7 b8R Rac7 Rc8 Nb8 b7 Qgg5 Rgg6 Bg7 Re8 Bh8 Rg7 Qgg6 Ref8 Qh2 Rd8 Qhf4 Rd5 Q5e4 Rh5 Qff5 Rgf7 Nd7 b8R Bg7 Rb1 Nb8 Rf8 Bh8 R6f7 Bc3 Rg7 Be5 Rf6 Bb2+ Ka4 Rg3 Rh2 Rh3 Rd1 Kc3+ Ka5 Kc4 Ng3 Bc3+ Ka4 Be5 Rdh1 Bd4 Nf1 Be5 Bb2 Bd4 Ba3 Kc3 Bb4+ Kb2 Bc3+ Ka2 Ba1 Kb1 Ka3 Bb2+
q2r1Qqk/2B2R1n/pnbNq1n1/6B1/2r1BP2/1Pp1QqN1/5B2/b1RK1b2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kf7 f4 Kg7 g4 h5 b6 e5 b7 c5 b3 c3 d5 e3 d6 e2 d7 a6 g5 e4 g6 c2 Nd2 c4 Bg2 h3 Ra2 h4 Nb1 h2 Kd2 e1N Na3 h3 Bf1 e3+ Ke2 Ng2 Nb1 Nh4 Ke1 e2 Bb2+ Nf6 Ra3 c1Q Nd2 Qc3 Bg2 Qf3 Ne4 c3 Ra1 Nh7 Rc1 Ba3 Qd3 Qg8 d8B Nd7 b8B Nb6 Bg5 Bf5 Ba7 Rc8 Qe3 Rc4 Nd6 Bd3 Bb8 Qa8 Bc7 Qf3 Rd1 Qfa8 Bc1 Bb2 Be4 Ba1 Ba3 Nf5 Bc5 Ne7 Kf2 e1Q+ Kf3 Qaf8 Rc1 Bf1 Ne2 Qa8 Rg1 h1Q+ Rg2 h2 Ng3 Qgd5 Bd4+ Kg8 g7 Ng6 Bc5 Qg1 Rd2 Qe6 Rd5 Qd2 Rf5 Qdd5 Rf7 Qh1+ Kf2 Qf3+ Ke1 h1B Qd3 Nf6 Bf2 Kh7 Qe3 Rd8 Bh4 Kh6 g8Q Nh7 Qe8 Bhg2 Rf5 Kg7 Bg5 Qg8 Qf8+ Kh8 Rf7 Bh1 Bc2 Qe6 Be4 Qg2 Kd1 Qgh3 Bd3 Bc6 Bc2 Qg2 Be4 Qf3+
1krR1Q1Q/n1R1Q1bP/2r1r3/B5p1/p2bBP1N/1qNb4/1q5n/2K1bn1Q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 a5 f4 d5 h4 Kd7 c4 Kc7 b4 g5 h5 e5 c5 d3 c6 a4 h6 g3 h7 g2 Qh5 d4 Qh4 e3+ Kd1 d2 Ra3 e4 Nh3 g1B Kc2 d1N Bd2 d3+ Kc1 e2 Rc3 e1B Bg2 e3 Be4 Ba6 b6+ Kc8 b5 e2 c7 Bd4 Qh6 Nf6 Ng1 Ng4 Nf3 Bfg7 Nh4 Qf6 Rc4 Rd8 Ba5 Nde3 Nc3 Nf1 Rh2 Rd6 b7+ Kd7 b6 Nc6 b8Q Na7 b7 Rc6 Qf8 Rc8 Rh3 Ngh2 b8Q Bb5 Qb7 d2+ Kc2 Qe5 Rd3 d1Q+ Kb2 Qb3+ Kc1 Qf6 Rd1 Ba6 Rc5 Bd3 Qh8 Rb8 c8Q+ Kd6 Qcg8 Rbc8 Qb4 Kd7 Qf8 Qe5 Qa3 Qeb8 Rd2 Q8b6 Rc4 Kc7 Qae7+ Kb8 Qh5 Bg3 Qf3 e1R+ Rd1 Re2 Qh1 Be1 Rd2 Rd6 Rc7 Rc6 Bf5 Ree6 Be4 Q6b5 Rd7 Qb2+ Kd1 Bc5 Rc7 Bb1 Rd8 Bcd4 Bf3 Bd3 Be4 Qf2 Kc1 Qb3 Qhg8 Qg2 Qh8 Qgb2#
1r6/N1Qb3p/RrP4r/2p2n1b/N4K2/1qbnR3/1rQqBNPk/1N2B2n w - - 0 1 illegal: No proof kernel
3n3B/N5P1/1Qq1RNQ1/2p2rN1/p1n2qrr/K1P1Nnk1/RrB1q2b/4b3 w - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 f5 Ke2 b5 Ke1 bxa4 h3 fxg4 Bd3 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Qd6 Na3 Qd5 Nb1 Qd8 d4 Kf7 Kd2 Kf6 Kc3 h5 Kb4 c5+ Ka3 a5 b4 e5 f4 e3 b5 e4 b6 e2 f5 e1B c3 e3 b7 Kg5 d5 Kf4 f6 h4 f7 h3 g5 h2 g6 Nd7 b8Q+ Bd6 f8N Rh4 Nd2 e2 Qb7 Qc7 Qb5 Nh6 Ngf3 g1N Ng5 g2 Qc2 Kg3 Qbb2 Rb8 Nc4 Nb6 Nd7 Nf7 Be3 Nd8 Bd4 Nf3 Bh8 g1R g7 Rg2 Rg1 h1Q Ne3 Qc6 Qd3 Qh2 Nf6 Bc7 d6 Nc4+ Ka2 a3 d7 a4 Qb6 Rb7 Qg6 Bb8 Rh1 Rg1 Bh3 Qf2 Bf5 Rg2 Kb1 a2+ Kc1 Rg1 Bc2 Rf1 Rh2 Rg4 Rb1 a1R Rh6 Ra2 Ra1 Rb2 Ra2 Be5 Qa6 R7b4 Qb6 Nf7 d8N Bd6 Nde6 Nd8 Nd4 Bb8 Nb5 Bd6 Nd1 Qd4 Na7 Qf4+ Ne3 Qf5 Ra1 Rh4 Nfh7 Nd4 Qc7 Bf2+ Bd1 e1Q Nc2 Nd2 Qf6 Kh2 Qfe7 Ra2 Qf7 Qe2 Qb6 Be1 Re6 Kg2 Qf6 Bh2 Qg6 Kg3 Nf6 Qfe5 Ne3 Rf5 Bc2 N4f3 Ng8 Rbg4 Nf6 Nc4 Kb1 Rb2+ Kc1 Rb5 Ra2 Ra5 Kb1 Qf4 Kc1 Ncd2 Kb2 Rb5+ Ka3 Rb1 Re4 Rb2 Re6 Nc4+
2Rb1N2/Kn1Brkp1/2RQbPn1/5bqn/prr5/3r3R/5QRP/B2N3q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 d5 c4 e5 b4 a5 f4 g3 c5 d3+ Ke3 d2 c6 a4 f5 g2 c7 d4+ Ke2 e3 Kd3 e2 Kc4 e1N b6 d3 Kb5 e4 b7 e3 Kb6 e2 b5 Be6 Nf3 g1Q+ Nd4 Ng2 Ra2 e1R Qc2 d1R Qf2 d2 Nc3 Nc6 b8R Nh4 Bh3 Kf7 Bb2 Qdg5 c8R Be7 Ba1 Nf6 Rc2 Q1g2 Rg1 Qh1 Rg2 Nh5 f6 Ng6 Rb7 Rc1 Nd1 Na5 R2c6 Rb8 Ka7 Rc4 b6 Rd8 Rbc7 Rd7 b7 Bd8 Bg4 Bf5 Ne6 Ree4 Nf8 Ree7 Bh3 Rd3 Rd7 Be6 Rd4 Bf5 Rh4 Be6 Bg4 Bf5 Rh3 Be6 Ne3 d1B Bf5 Bg4 Nd1 Bd5 Bd7 Bde6 Rc5 Bgf5 R8c6 Rc8 b8Q Nb7 Qd6 Rb8 Rc8 Na5 R5c7 Rbb4 Rc6 Nb7
qr1rbRK1/2b2P1B/Nn1N4/q4bB1/p3r3/1N1QpPkn/7R/Q1Nr1n2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Ke2 Kf7 Kf3 Kf6 Kf4 h5 g4 d5 b4 a5 c4 e5+ Kf3 e4+ Kf4 h3 f3 e3 b5 d3 b6 d2 c5 d4 b7 d3 c6 h2 c7 h4 Ba3 h3 Bd6 a3 Qc2 d1B Qc1 d2 Ba6 a2 Ne2 Ba4 Bd3 d1R Nd2 Be8 Nb3 Nd7 b8N Nh6 Na6 Nf7 Ke4 Kg5 Kd5 Kh4 Ke6 Qg5 f6 Rb8 Bf4 Bd6 Bh7 a4 Rb1 Qa5 g5 a1Q g6 Rd4 g7 Re4+ Be5 Q1c3 g8Q Qc6 Qg6 Qa8 Qa3 Rf8 Qa1 Rh8 Nec1 Ng5+ Kf5 Rf8 f7 Nb6+ Kf6 Bf5 c8N Bc7 Kg7 Rh8 Bf6 Kg3 Nd6 Rd8 Rf1 h1R Rf2 h2 Be7 Rf1 Rc2 h1N Rh2 Rd1 Bf6 Bc8 Qf5 Nh3 Bg5 Be6 Qb5 Rb8 Qd3 Bf5 Rbb2 Bb5 Rbc2 Rhd8 Rc5 Be8 Kg8 N1f2 Re5 Ng4 Re7 Ne5 Re6 Nec4 Re5 Nd2 Re7 Bc6+ Re8 Nf1 Rf8 Be8
b1Q1R3/qRQPB3/r1p1b1K1/1q1nr1R1/1Nq5/1P3r2/1p1b1Nnk/b2BR3 w - - 0 1 illegal: No proof kernel
2R2N2/nqrP3P/k7/b1p5/5KQB/1R3BRq/1bQpr1bn/Nqq2R1n w - - 0 1 illegal: No proof kernel
n3nNQn/k1rpr3/P2Pq1bb/1KRpRr2/8/1Q3n1B/qq6/2R2BNR w - - 0 1 illegal: No extended proof kernel
b1N3N1/2P2BPk/6R1/prq1Q1KB/1n4Bb/bqQr1rn1/1B4pb/1R4n1 w - - 0 1 illegal: No possible last move
6QB/2PP2bK/2q1q2Q/n1nN1R2/RpN1p1n1/b2RrR2/q1n5/1b3Bkr w - - 0 1 illegal: No proof kernel
N1R2br1/nqp1nN1Q/5NB1/1N2rP2/1PqB2K1/2Q2b1R/rr1p1q2/3nk3 w - - 0 1 illegal: No proof kernel
Q2BbbRn/NPb2rR1/2Rrqq1Q/1r2n1p1/K1Bp2P1/2k5/5R2/N3b2q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Qd3 cxd4 Qc3 h4 Qg3 hxg3 Kd1 Ke7 h4 Kf6 c4 Ke5 Kc2 f5 Kb3 g5 e4 d5 c5 a5 c6 f3 h5 f2 c7 d3 h6 Kd4 h7 d2 b6 d1R b7 g2 e5 f4 e6 f3 e7 a4+ Kb4 a3 Bf4 a2 Nd2 Nd7 b8Q Qe8 Rh2 Ra7 Bc4 f1Q Qa8 f2 b3 Bb7 c8R Bc6 Bc7 Nh6 Bd8 Nf7 Rc1 a1B Rc7 Rg8 h8Q+ Nde5 Qh6 Nh8 Rc2 Rb1 Rb7 Rg6 Ngf3+ Ke3 Rd7 g1B Nd4 Rd6 Nb5 d4 Rc1 Rc7 Ka4 Bc3 b4 Qg2 Rc2 f1Q Nb3 Qh1 Rhf2 Be1 Na1 Bh2 Rc1 Qf7 e8R Qe6 Rg7 Rf7 Rcc2 Bb7 Na7 Bc6+ b5 Rb3 Re7 Be8 Rg8 Bg3 Rd7 Bh2 b6 Rb5 b7 Ke4 Bb3 Kd3 Rc6 Bf4 Bc4+ Kc3 Re7 Bg3 Rh2 Qff6 Rf2 Rh7 Reg7 Bf4 Rg6 Rf7 R6g7 Nf3 Nb3 Rdd7 Rd2 Bc7 Rf2 Rd6 Na1 Ne5
1brKNrqn/QP5Q/1r3R1n/p1q4k/7B/b2P1p2/NQn2R2/rbQ4B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 Kf7 g4 Kg6 b4 c5 e4 h5 e5 a5 b6 h3 e6 h4 e7 c3 b5 c4 g5 h2 b7 c2 b6 c3 Bg2 h3 Ra2 Nh6 Na3 Nd7 b8Q Kh5 b7 Qe8 Bb2 c1B g6 c2 g7 Ra6 g8Q Rb6 Qa7 Ne5+ Ke2 f3+ Ke3 f4+ Ke4 Bg4 Kd5 f2 Nb5 f1N Nd6 f3 Ne2 Nef7 Qh7 Bf5 Bf6 Ba3 Nc3 c1Q Bh4 Bb1 Ke6 Ne3 d3 Nc2 Kf6 Qe3 Qc1 Qc5 Rg1 Qec8 e8Q h1R Qb5 h2 Qbb2 Rg8 Re1 Nh8 Re6 Rd1 Ne8 Bd6 Bh1 Bb8 Rd6 Rf8+ Ke7 Qe6+ Kd8 Qg8 Rf6 Re1 Qb3 Ree6 Rb2 Rec6 Na2 Rc8+ Kd7 Nd4 Rf2 Nc2 Qbb2 Rcc6 Bg2 h1R Kd8 Rc8+ Kd7 Ne3 Qf1 Bc2 Qfb1 Rg1 Bh1 Rf1 Qe1 Rg1 Qec3 Ra1 Qd2 Bb1 Qdc1 Rcc6 Kd8 Nc2 Qa6 Rc7 Qa7 Rc8+
R5b1/Pn2n2p/RN1R4/2PrR3/1q1n2pn/1rkN2br/Q3q1b1/1B1K2BQ w - - 0 1 illegal: No proof kernel
rbR1b2b/P3p3/Rq1QB1p1/5RQ1/n2Bk1Nb/1nr5/RP1rq3/1K1N2n1 w - - 0 1 illegal: No proof kernel
2N4k/p1bpQb2/1B3q2/1BPr1P2/n5nN/N4R1b/1Q5R/qr1nbNqK w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kg7 c4 e5 f4 h5 Kf2 d3 Kg2 d2 g5 e3 b6 h3+ Kh2 h4 g6 e4 b5 e2 b7 e1B b6 e3 Qf3 d1N Nd2 e2 Qe4 Nf6 Ngf3 Na6 b8Q Nc5 b7 Rh5 Ra3 Rd5 f5 Na4 Qe7+ Kh8 Qbe5 Bh6 b8N Bb7 Na6 Rb8 Nb4 Bf4+ Kg1 Ba8 Qb2 Bc7 Nc2 h2+ Kg2 Rbb5 Rd3 Rb3 Na3 Bc6 Rc3 Ng4 c5 Qf8 Re3+ Qf6 g7+ Kh7 g8N+ Kh8 Rc3 Bb5 Rd3 Bc4 Re3 Beg3 Rc3 e1Q Be2 Rb8 Nf1 Ba2 Bd3 Qee5 Bc4 Be1 Bg5 Rb4 Bb5 Qe3 Qe2 Rb1 Qb2 Qee5 Rd3 Qd4 Bd2 Bb3 Ba5 Bc4 Qd2 Qa1 Bb6 Bb3 Qe5 Bc4 Ne7 Ba2 Nc8 Bc4 Qf2 h3+ Kg3 Ba2 Nh4 Bb3 Rf3 Bc4 Rg1 h1B Rg2 h2 Kh3 Bb3 Qfb2 Bc4 Rgf2 Bg2+ Kg3 h1Q Qd6 Re5 Qe6 Qg1 Qe7 Bh1+ Kh3 Bf7 Rh2 Rd5 Rb3 Be4 Rf3 Qgd4 Kg2 Bd3 Ng3 Bf1+ Kh1 Bh3 Nf1 Qg1+
b1n2b2/B1Q1r1bQ/1n1R4/k2NB1P1/bqQ5/p1Rb2K1/PQr2pn1/b4N2 w - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 bxc5 gxf4 g5 h6 Be2 h5 Bg4 hxg4 Kf2 Kd7 h4 Kc7 c4 b5 d4 a5 d5 f5 c6 Kb6 d6 e5 d7 f3 h5 e3+ Kg3 a4 h6 e2 h7 e1B+ Kh2 f4 c7 f2 c5+ Ka5 c6 f1B Ne2 b4 Bb2 g3+ Kg1 f3 Bc3 e4 Nf4 g2 Kh2 e3 Nd3 e2 Qd2 a3 Rg1 Qe7 d8Q Nd7 Nc1 Nb6 Nd3 Bb7 c8Q Ra7 c7 Ba8 Qg4 f2 Rh1 g1B+ Kg3 Bfg2 c8Q Bgc6 Qdc7 Ba4 Qgd7 Bh2+ Kh3 Qd6 Nf4 Ne7 Nd5 Be5 Bd4 Beg7 Qb2 b3 Nd2 Qb4 Nf1 Bc3 Kg3 e1N Rh6 Ng2 Rd6 Rg8 h8B Rb7 Q8d8 Nc8 Qc4 Ra7 Qh3 Re7 Bc5 Bcd4 Qc7 Bc3 Qh7 Bcd4 Qbe2 b2 Rc1 b1B Rc3 Bd3 Qd2 Bh6 Be5 Bhg7 Qb2 Rh8 Qh3 Rh4 Qhd7 Re4 Qf5 Re2 Qh7 Rc2 Qc6 Nd7 Ba7 Ndb6 Qc7 Be3 Qa1 Bc1 Qb1 Bb2 Qc1 Ba1 Qd2 Rc1 Qb2 Rc2
1B2Kqrb/rk6/1nr2Pn1/B2rP2R/Qr2pRb1/4npQ1/B1N3r1/2B3N1 w - - 0 1 illegal: No possible last move, all moves rejected
N1n1b2b/1Q1rQ3/N1N5/2rRKB1k/1rb4B/PRn1p1P1/1p1b2N1/q1r1r3 w - - 0 1 illegal: No possible last move
4bQ1R/1bNqr1B1/R1R5/Q1R1r1b1/3pkpn1/N4n2/P2P4/bbnn1KB1 w - - 0 1 legal: proof: f4 a5 g4 c5 b4 cxb4 f5 h5 gxh5 a4 Bg2 e6 Bf3 exf5 Bd5 f4 Bb3 axb3 h4 Ke7 e4 Kd6 c4 Ke5 c5 d5 h6 b5 h7 g5 c6 f5 h5 b2 h6 f3 c7 f4 Qe2 f2+ Kf1 b3 Rh2 b4 Rh5 Nc6 Qb5 Bb7 c8R Be7 Qc5 Qd7 Rh4 g4 Qc3+ Nd4 Qc4 g3 Rc5 Bg5 Rh3 Ne2 Qb5 Nf6 Qd3 Ng4 Rh4 Ra5 Qb5 Re8 h8R Re7 Na3 b1N h7 b2 Rh6 b3 Nh3 Nbc3 Ra6 b1B Bb2 Nc1 Qa4 Rb5 Qa5 Kd4 e5 Ke4 e6 Nd1 Bd4 b2 Be3 Bc2 Rcc6 b1B Bc5 Ba4 Ba7 Rf7 e7 Rg7 e8Q+ Re7 Qf8 Rc5 Kg2 f1N Bb6 Rb5 Bg1 Nfh2 Rc5 Nf3 Kf1 Rb2 Rcc6 Rb6 Rc5 Rbe6 Rcc6 Re5 Rc5 Bbc2 Rb1 Bac6 Rbb6 B6a4 Rbc6 Bb1 Rg8 Nd4 h8B g2+ Ke1 Bb5 Bg7 Ba4 Rh8 Bb5 Be3 g1B Bf2 Ba4 Kf1 Nf3 Be3 Bf2 Bd4 Bfh4 Bg1 Bf2 Rc7 Bd4 Rc8 Bf6 R8c6 Ba1 Ng5+ Kd3 Rc2 d4 Ne6 Bg5 R2c5 Ke4 Nc7 Qd8 Re6 Be8 Rec6 Qd7
q1QN1nr1/2B1R2r/r3R1n1/rQK4P/3N2p1/B1rbPqBk/5b1p/5r1B w - - 0 1 illegal: No proof kernel
QR2Q1Bq/1R1nBn2/b1K2N2/p1p1R3/2bbP1Nb/5Rn1/4P1b1/n2rk1r1 w - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 e5 h5 b5 h6 bxa4 f3 e4 fxe4 gxh6 Rh3 h5 Rh1 h4 Kf2 Ke7 Kf3 Kf6 b4 Ke5 g4 Kd4 b5 h5 g5 a5 g6 c5 b6 f5 b7 h3 g7 c3 d3 c2 Ra2 h2 Bd2 c1B Qe1 a3 Bh3 f4 Qh4 Nh6 g8R Be7 Rg5 Rg8 Re5 Bb2 Be6 Nd7 b8R Nf7 Nh3 Rg1 Nf2 Ba6 Nc3 Qh8 Nd5 Bd8 Qf6 h4 Qg6 h3 Ng4 Bh4 Ndf6 Bc3 Rb7 Rd8 Rab2 a2 Qg8 a1N Qe8 Bc4 Rb8 Ba6 R2b7 Bb2 Be3+ Kc3 d4 Bc4 Bf2 Kd2 d5 Bd4 Be3+ Ke1 d6 Nh6 Bg8 Nf7 Nf2 Bg3 Kg4 f3 Kf5 Bh4 N2g4 f2 Bg5 f1B Kf4 Bg2 Kf5 Ba6 Ke6 Bf3 Kd5 Bg2 Nh6 Bf3 Kc6 Bh5 Nhg4 Bg6 Qe6 Bf5 Qe8 Be6 Rb6 Bec4 R6b7 Rf1 Rg1 h1B Rg3 h2 Re3 Rg1 Rf3 Nb6 d7 Bg2 Nd5 h1N Be7 Ng3 Ndf6 Na4 Rbb3 Nb6 Rb7 Ra8 d8Q Nd7 Qc8 Ra7 Rb8 Ra8 Qb7 Ra7 Qa8 Rb7 Rb2 Rb3 Rb7 Rd3 Rb8 Rd2 R2b7 Rd1
1k1b1b2/3r1qB1/1B3b1p/1K1Bn2p/N1Q1Qrn1/R1bbR3/1P4Pn/3Bn1N1 w - - 0 1 illegal: No proof kernel
nk2b1R1/4nrN1/1b2Q2p/Q1Pq1N2/1nq4P/2rB4/1n1KpBR1/2nB1B1n w - - 0 1 legal: proof: f4 a5 e4 g5 b4 axb4 d4 c6 d5 cxd5 fxg5 dxe4 Kf2 e3+ Ke2 Ra4 Ke1 Ra8 c4 b5 g4 e5 h4 f5 a4 d5 g6 Kd7 g7 Kc7 a5 b3 g5 b2 a6 b4 a7 f4 g6 f3 Rh3 d4 Ra5 d3 Ra6 e2 Kd2 e1N Ra4 h6 Ra3 f2 Re3 b3 Qh5 e4 Be2 f1N+ Kc3 d2 Rh3 e3 Nf3 Ne7 g8Q d1N+ Kb4 Bd7 g7 Rh7 Nbd2 b1Q Bd3 b2 Nb3 e2 Nfd4 Qa2 Rg3 b1N Nc5 Be8 Be3 Nb2 Qe6 Nbd2 Kc3 Nd7 g8B Nb3 Bf2 Nc1 Nf5 Rf7 Rg2 Ng3 Kd2 Rc8 a8B Nh1 Bd5 Bg7 Ra8 Nc2 Bf3 Bf8 Bg4 Qa6 Bh3 Nb4 Bh7 Qc6 Bc2 Bg7 Bd1 Bd4 Qg5 Nb6 Rb8 Qdd5 Qh5 Bd7 Qg5 Rh8 Rg8 Na8 Bg6 Nc8 Qd8+ Kb8 Qa5 Qa4 Rg4 Bc6 Bf1 Be8 Rg2 Qac6 Ne4 Qcb5 Neg3 Ne7 Ng7 Bb6+ Bd3 Qa4 N3f5 Qb3 Rf8 Rg8 c5 Qbc4 Nh5 Rg3 Nhg7 Rf3 Rg8 Qc6 Be4 Rc3 Bd3 Q6d5
1b1b1b2/n1k3Bp/2b2b2/r3qRRn/1PK1Q1rN/Qp5P/RB1N1nn1/6R1 w - - 0 1 legal: proof: b4 d5 e4 dxe4 g4 f5 a3 fxg4 c3 c5 Bc4 b6 a4 b5 Bb3 c4 axb5 cxb3 Ke2 Kd7 f4 g5 d4 a5 h3 e5 c4 e3 Kd3 e2 f5 e1N+ Kc3 e4 c5 g3 b6 e3 d5 g2 d6 e2 f6 a4 f7 g4 b7 a3 Nd2 g3 Ne4 a2 Qd4 Qe8 Qc4 Ra5 Qd4 Nc6 b8R Na7 Nd2 Nf6 Rb5 Qe5 Ngf3 g1B Bb2 g2 Nh4 Bb7 Kc4 Rg8 Qe4 Bh2 Rg1 Nd3 c6+ Kc8 d7+ Kc7 d8R e1N Rc5 Nh5 Rdd5 Rg4 Rb5 Nf2 Rbc5 Kb6 c7 Bc6 c8Q Bf4 Qe8 Kc7 Qa8 Bg5 Rb5 Bd8 Rdc5 Qf4 Rg5 Qe5 Rc1 a1B Rc2 Qh2 Rbf5 Qe5 Bd4 Bc3 Ra2 Ba1 Rh1 g1B Bb2 Bh2 Rg1 Bh6 f8B Ng2 Be7 Bf8 Bf6 Qe7 Bg7 Bd6 Ba3 Bf6 Bb2 Qe5 Qb8+ Kd7 Qb5 B6c7 Qa4 Bb8 Qa3 Kc7
b1r1N1r1/1b2P2N/1B2R3/brQBK1Nb/2rpnQ2/1Rn4N/P1k2p2/q4b2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 b5 h4 d5+ Kf3 Kf5 c4 g5 e3 d3 h6 g4+ Kf2 Ke4 c5 f5 h7 b3 h5 b4 c6 d2 h6 g3+ Kg2 b2 c7 b3 Qe1 d1B Nh3 Qf6 Qe2 Na6 Qb5 Ne7 Qc5 Bb7 c8N Bh5 Bc4 Rg8 h8N d4 h7 Nd5 Nf7 Nc3 Bd5+ Kd3 h8Q Kc2 Ncd6 Rc8 Nd2 b1R e4 b2 e5 Qg7 e6 f3+ Kf1 f2 Kg2 f4 Nf3 Qg4 Nf3g5 Qd1 Nh7 Ba8 Re1 f1B+ Kh1 f3 e7 f2 Ne8 g2+ Kh2 g1R Qe5 Bh6 Bf4 R1g5 Re4 Rc1 Rb1 Rf5 Bg3 Bd2 Qf4 Bb7 Re6 Be1 Qcd6 Nc5 Nfg5 N5e4 Qc5 Re5 Qe3 Rf5 Bc7 Bd2 Bb6 Ba8 Ra1 b1B Qf3 Bf4+ Qg3 Bc7 Qf4 Bb7 Ba7 Ba5 Bb6 Nf6 Kg3 Re5 Qf3 Ne4+ Kf4 Kb2 Qd6 Ba8 Bc6 Bbd3 Nef6 Na4 Ne8 Ba6 Bb7 Rec5 Bd5 R1c4 Rb1+ Kc2 Rb3 B6b7 Ke5 Nac3 Qf4 Rb5 Qc5 Qa1
3q2rr/1kpp3b/5b1Q/b1b1RN2/1N4bn/B2KNPQR/2P4n/1Bq3bN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 e5 g4 exd4 Bg2 h5 Bf1 hxg4 Ke2 g5 b4 a5 h4 a4 h5 d3+ Kd2 a3 h6 g3 b6 g4 b5 g2 h7 g3 b7 a2 b6 Nh6 Rh3 Ng4 Ne2 g1B Ba3 g2 Ng3 Bc5 Nh1 Nh2 Qg4 Nc6 b8N Ba6 b7 Ne7 Nc6 Nf5 b8N Nh4 Ne7 e3+ Kc3 e2 Nd2 e1B Qg3 Bb7 Nf5 Be4 Na6 Rc8 Rc1 a1B+ Kc4 Rg8 h8Q Bf6 Qh6 Rb8 Be2 Rh8 Nf1 d2 Nb4 d1B Bd3 Bg4 f3 Bec3 Re1 Rc8 Ne7 Bh7 Re5 Be1 Ne3 Rg8 Na2 Ba5 Bf5 Ra8 Be6 Rb8 N7f5 Rc8 Ng7+ Ke7 Bf7+ Kd6 Ngf5+ Kc6 Nb4+ Kb7 Kc3 Bf2 Kc4 g1Q Kd3 Qc1 Ba2 Bg1 Bb1 Qe7 Qh5 Rce8 Qh6 Qd8 Qf8 Rh8 Qh6 Reg8
1nb4B/bP1r3B/QQ5N/n1P4k/Kbp1r2B/2B1q1n1/p2N2n1/2R2bnR w - - 0 1 illegal: No proof kernel
n1b2bb1/1p1N3Q/1B4PR/1q1B1Nnr/K7/R2Qb2k/B1pqP2r/2b1b2B w - - 0 1 illegal: No proof kernel
1rR1bB2/rN1B2b1/2nnR2P/1nK5/1P1QN1k1/2rq3p/Nn3p2/r3bN1Q w - - 0 1 illegal: No proof kernel
1n2n1Qb/1kn1RqQQ/3p2b1/b1r2p1r/1B6/rN3N2/1P2bPRn/K3B2Q w - - 0 1 illegal: No possible last move, all moves rejected
1r3n1q/4B1kb/Q2bQ3/q7/P2qp1N1/Q1P2QnK/p2nqRB1/r1N3Rn w - - 0 1 illegal: No proof kernel
7b/6B1/R2b2pq/1PnNnqP1/pN1q1N2/1n2R2N/2BQr2k/nq2QK1r w - - 0 1 illegal: No possible last move
N1b2N2/Kq6/2k1rPn1/R3qp1q/p1r5/1N2bN1r/PB1BQ1rq/2Qn3R w - - 0 1 illegal: No possible last move
qR6/rB4Bn/QP3R1q/1bB4p/B1Kb1q2/2P2q1r/k3pN1n/4nQNn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Ke6 g4 Kd5 f4 e5 c3 a5 g5 e3+ Kd3 e4+ Ke2 Kc4 g6 d5 g7 h3 b6 a4 b7 a3 b5 d3+ Ke1 a2 b6 e2 Kd2 e1N f5 h2 f6 d4 f7 Qc7 Be2 Nf6 g8B Ng4 Bf3 Ra7 Ne2 Nd7 b8Q Bc5 Ng1 Nf8 Ba3 e3+ Kc1 d2+ Kb2 d3 Be2 Bd7 Qa8 Qf4 Bf3 Bb5 Bb7 Bd4 Bc5 h6 Qe2 d1Q Qf1 Nh7 Qc8 Qdf3 f8B+ Qd5 Bf7 e2 Be8 d2 Bg7 d1Q Qa8 Qdf3 Nd2+ Kd3 Ne4 Kc4 Bd7 Qdd3 Nf2 Qg6 Bf5 Qe6 Bc2 Qg6 Ba4 Qgd6 Ngh3 Qdc6 Rg1 h1N Rg3 Qe6 Ng1 Nh2 Rg6 Qed6 Rd1 Qdf6 Rd2 Q6g5 Ka3 a1Q+ Ra2 h5 Qc8 Re8 Rf6 Re3 Qa8 Qh6 Qc8 Qb1 Ra1 Qbe4 Rd1 Be5 Rd8 Bd4 Qa8 Qc6 Rb8 Qe8 Be4 Qc6 Qb7 Rd3 Qa6 Qa8 Bb7 Q3e4 Bc8 Rh3 Bb7 Qef3 Ne4 Kd3 Nf2+ Kd2 Kb3 Kc1 Kb4 Kb1 Kb3 Bc6 Kb4 Ka2 Kc4 Bb5+
qQ3QBn/B1r3QP/1q4Rr/5p1k/Rnr4b/1P2Kn1b/1Qn1Np2/1N4r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 c4 d5 h4 g5 e4 a4 b6 d3 h5 a3 b7 d4 c5 a2 c6 f3 e5 f2 b3 g3 h6 g2 e6 g4 c7 g3 e7 Na6 b8Q Ra7 Qe1 Bh3 c8Q f5 Qc3 Kf7 Qbb4 Kg6 Qbc5 Nb4 Qe4 Kh5 Qc2 Qb6 Q5c3 Rc7 Ne2 g1N Qc5 g2 Qce5 Nf3+ Kd1 g1R Qb7 d2 Na3 Rc4 Rb1 a1N Qb2 Nac2 Ra1 Bg7 Qf4 Bf6 Nb1 Bh4 Qfb8 Rh7 e8Q+ Rg6 Qf8 Rhc7 h7 Nh6 Q8a7 Nf7 Qab8 Nh8 Rg1 Rh6 Rg6 Qc5 Ng1 Qb6 Ke2 d1R Be3 Rc1 Ra4 Rd1 Nc3 Ra1 Nb1 d3+ Kd1 d2 Ne2 Ncd4 Bg2 Ng1 Bd5 Ngf3 Bg8 Ndc6 Bc5 Ncd4 Nc3 Ndc2 Ke2 Ncd4+ Ke3 d1Q Ne2 Qh1 Na3 Rg1 Nb1 Nh2 Q7a7 Qa8 Qab7 Nhf3 Q7a7 Rc8 Qae7 Rc7 Qeg7 Qbc6 Ba7 Qa6 Qfd8 Qb6 Qdf8 Ndc2#
B5Rb/1qq1Rp2/Bk1q2p1/1Nr1bP2/q2nnnP1/4n1Q1/Q5N1/NKN2r2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 d5 b5 d3 b6 axb6 Be3 b5 Bc1 b4 g4 h5 Kd2 h4 Ke1 d4 Bf4 Be6 Bg3 Bd5 exd5 hxg3 Kd2 Kd7 Kc1 Kc7 a4 e5 f4 b5 c4 g2 h4 d2+ Kc2 e4 a5 g6 c5 d3+ Kb2 b3 h5 e3 f5 b4 h6 e2 c6 e1B a6 Bd6 a7 Kb6 c7 Nf6 h7 Ne4 Qe2 d1Q Na3 d2 Nc2 Nc6 Rh5 Rb8 a8B Rc8 Ra7 Nd4 Na1 Be5 d6 Bh4 d7 Bhf6 Qe1 Bg7 Ne2 g1N Rh4 Nh3 Qg3 Nf4 Nc1 Qf8 d8N Qd6 Kb1 b2 Rh3 Qa4 Ba6 d1N Ne6 Ne3 Rh2 Rhd8 h8Q Bgf6 Qg7 Rh8 Rd2 Rh1 Rh2 Rg1 Rh8 Rf1 Qh7 Bg7 Rg8 Bh8 Qhh2 Nfd5 Nf4 Kc5 Rb7 Kc6 Qhf2 Kc5 Ng2 Nf4 Qd2 Qb5 Ka2 b3+ Ka3 b1Q Qb2 Qc2 Qa2 b2 Ra7 b1Q Rb7 Rb8 c8N Qe8 Na7 Rc8 Rd7 Qb7 Re7 Qed8 Nb5 Qa4+ Kb2 Kb6 Kb1 Rc5 Qh2 Q6c7 Qg3 Qdd6
br6/2brPq1n/B3b2k/1q3p1q/1Q3R2/PBnq1Q2/2p1N2B/b1B2KNR w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 g4 h5 d4 b5 e4 c5 e5 h4 e6 h3 g6 h2 g7 f3 a3 c3 g5 c4 d5 b3 d6 c2 e7 f2+ Ke2 b2 g6 b4 Qe1 b3 Nc3 b1B Bg2 f1Q+ Kd2 b2 Qe5 Ra7 Bc6+ Nd7 Nh3 Nf6 g8Q Nd5 Ba8 N7f6 g7 Be6 Qg5 Nh7 Bc6+ Rd7 Rg1 h1Q Ne2 Nc3 Qa5 f5 Nhf4 Qh5 Rh1 Ba2 Rh4 b1Q Nh3 Qb3 Bb7 Qdb6 Qa4 Q6b5 Rf4 Bd5 Ba6 Ba8 Qe6 Qff3 Ke1 Qd3 g8B Bg7 Qe4 Be5 Bb2 c1B Nhg1 Be3 Rd1 Bb6 Qf3 Bc7 Qb4 Bg7 Bd5 Rg8 Kf1 Be5 Bc6 Kf7 Bd5+ Kg7 Bc1 Rb8 Bf7 Kh6 Bg8 Ne4 Be6 c3 Bg8 Rdd8 d7 c2 Re1 Ba1 Be6 Rdc8 d8B Nc3 Bg8 Qbf7 Rd1 Bd6 Bc7 Rd8 Re1 Rd7 Rd1 Qf6 Bb3 Qff7 Kf2 Qe8 Be6 Qg8 Rh4+ Ng5 Nh3 Re8 Rh1 Qf7 Kf1 Bf4 Ng1 Nh7 Rg4 Rb8 Bd6 Bd2 Bh2 Be3 Rf4 Bb6 Bb3 Ba5 Ba4 Be6 Bb3 Bc7
B1R5/Pn1bB3/p3Q2b/kB1b2b1/B4n1R/P3p2q/qrN4n/1QrNKn2 w - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 c5 h5 cxd4 h6 gxh6 Be2 h5 Bf1 h4 b4 d5 b5 d3 b6 a6 Rh3 Qc7 Rh2 Nc6 Rh3 Qb8 Rh1 Qa7 bxa7 Nb8 g4 Kd7 f4 Kc7 c4 Kb6 c5+ Ka5 a3 e5 g5 h5 c6 b5 g6 b4 c7 b3 g7 d2+ Ke2 h3 f5 b2 f6 h4 f7 d4 Qe1 h2 Nh3 e3 Qd1 e4 Nf2 h3 Nd3 Bd7 c8B Ne7 g8B Ng6 Nc3 b1Q Qe1 d1N Qf2 Qa2+ Ke1 e2 Bg2 Nc6 Nc5 d3 Bf1 Nf4 Qh4 Bh6 f8Q Rb8 N5a4 Rb2 Bf7 Nf2 Nb5 Nd8 Qf6 Ng4 Qe6 Nb7 Nd4 Bg5 Be8 Rh7 Rg1 h1Q Nc3 h2 Nc2 Qf3 Rb1 h1B Nd1 Nh2 Rg4 Qh3 Rh4 Rf7 Be3 Re7 Bc5 d2+ Kf2 Rf7 Be7 Rf6 Rc1 e1B+ Kg1 Rf5 Bb5 Rc5 Qff5 Rc4 Nc3 d1N Ba4+ Nc5 Bb7 Bd2 Ba8 Ne3 Kf2 Nef1 Nd1 Bg2 Qfg6 Nb7 Bb5 Be3+ Ke1 Rc7 Ba4 Ne2 Nb4 Bh6 Bb5 Beg5 Bd3 Bc8 Ba4 e3 Bdb5 Bd7 Qb1 Bd5 Rc2 Rc4 Rc3 Nf4 Rc1 Rd4 Rc5 Rc4 Rc8 Rc1 Nc2 Qf5 Qd6 Qg4 Qe6 Qh3
1R1b3N/p1NnQ1P1/1p1Qn1r1/b2BPqn1/4Bk1B/1r3n2/1K1b4/Bb4Rq w - - 0 1 illegal: No proof kernel
N5RK/1pr1kn1B/1Ppq1q1q/6nr/8/N1P1NN1Q/1n1nRbnB/6Qr w - - 1 2 illegal: No possible last move
b1r1kN2/2r5/Q1b1r3/2qp1p1R/3RnPN1/2P1KQr1/Brr4b/2Q1B1rQ w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 d5 Bb5+ Nc6 Bf1 Na5 Qd3 Nc4 Qd1 Nd6 exd6 c5 Qe2 cxd4 Qh5 Bg7 Qd1 Bf8 Kd2 h5 g4 b5 a4 f5 a5 e5 g5 b3 a6 h3 g6 h2 a7 e4 c3 b4 g7 h4 f3 h3 Bb2 e3+ Ke2 d3+ Ke1 d2+ Ke2 Nf6 g8Q Qc7 Ra4 Ne4 Qh7 Qc5 Ra6 Bb7 Na3 Rc8 a8Q Rg8 Ra4 Rg3 Qa6 Ba8 Bc1 b2 Nb5 b1R Nd4 b3 Ne6 Rb2 Rd4 Rc2 f4 b2 Nf3 b1R Ne5 Rbb2 Ng4 Bg7 Qe1 d1B+ Kd3 Be5 Nf8 e2+ Be3 Bg7 Qd2 e1R Qc1 Bf6 Qh8 Bh4 d7+ Kf7 d8Q Ree2 Qdf6+ Ke8 Qfh6 Rc7 Rg1 h1R Q6g7 Rhh2 Rh1 Rb8 Qg5 Rbc8 Qgg8 Rhf2 Qg5 h2 Qgh5+ Rf7 Q8h6 Rb2 Qh8 Ba4 Q8h7 B4c6 Q7h6 Rgg2 Bd2 Bg3 Be1 Rbc2 Qh3 Rfc7 Qh7 Rg1 Qg2 Rb2 Qf3 Rec2 Ke3 Rfg2 Bc4 Rge2+ Kd3 Rgg2 Bb3 Rg1 Ba2 Rgg2 Rg1 h1R Rf1 Rh3 Rh1 Bh2 Qh4 Rhg3 Qh8 Bg1 Rh5 Bh2 Qh7 Rg1 Qh6 Rf2 Ke3 Rb6 Qg5 Rcb2 Qh4 Rfc2 Qh3 Bd7 Qg2 Re6 Qh1 Bdc6
bkN4b/3Bp1B1/Rrp1q2r/R1Q3B1/KN1QPbB1/P1b2bb1/4n3/5rb1 w - - 0 1 illegal: No proof kernel
1NbBn1rR/2b1bqk1/1Q4Bn/3K2b1/1b1pp1Q1/2PNPbR1/1Qn5/4Q1q1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h4 g5 Bf4 a5 Kd2 g3 Ke1 g4 Bc1 Ra6 Nc3 Rg6 Nb1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 Kf7 Kd3 d5 f4 e5 b4 h5 f5 h4 b5 a3 f6 e4+ Kd2 a4 b6 d3 Kc3 a2 Kd4 a3 b7 d2 Rh2 h3 Nf3 g2 Qe1 d1B Nbd2 g3 Nb3 Qc7 Na5 Na6 b8Q Nh6 Qb2 Be7 Nc6 Rg8 Nb8 g1B+ e3 g2 Bc4 Bf2 Bd2 g1B Ba5 Bh4 g6+ Kf8 f7 Kg7 Rb1 a1B Ne5 a2 Nd3 Bhg5 c3 Bf3 Rg2 h2 Rg3 h1Q Qb6 Bb2 f8Q+ Kh8 Qf5 a1N Qg4 Bba3 g7+ Kh7 Rb2 Bab4 Rh2 Qa7 Ke5 d4 Bf7 Nc2 Kd5 Qc7 Rh4 Bh2 Be8 Qg1 Rhh3 Bbc5 Qb2 Qf4 Bd8 Bb4 Qe6 Qf8 Qb6 Qf6 Rg2 Bc7 Rgg3 Nc5 Bf7 Nb7 Rh4 Nd6 Rh1 Rh8 Bg6+ Kg8 Rh4 Ne8 Qa6 Nf7 Qb6 Bgf4 Bh5 Kh7 g8Q+ Kh6 Qg4 Bg5 Na6 Rg8 Nb8 Kg7 Bg6 Qf4 Rh8 Nh6 Qec1 Qf8 Qe1 Qf7+
2KNR2Q/2B2npq/2r3Nr/1Q4P1/rP4b1/R1R1p1rB/1nR2r1n/q1r4k w - - 0 1 illegal: No proof kernel
3b3Q/2p2n2/B1p1k1NR/KB4r1/nBP1q3/n6N/1QPrrBr1/q1rR1r2 w - - 0 1 illegal: No proof kernel
1QrNr1kN/1B4p1/qqP4q/1b1Nr1p1/4QnP1/7b/2RR1b1b/N1BK3q w - - 0 1 illegal: No proof kernel
B1N5/3Nn1q1/n1pqn1p1/1K5k/1P2rqR1/Rq4Pr/1Nb1rQQ1/B4N1n w - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 dxc4 f5 g6 h5 Bg7 h6 e6 hxg7 exf5 Rh6 f4 Rh5 Nf6 Rh1 Ng8 e4 a5 Ke2 h5 b4 f5 d4 Kf7 g3 h4 d5 a3 e5 h3 e6+ Kf6 d6 Kg5 d7 h2 e7 a4 e8N a2 Qd4 c3 Kd3 a3 Kc4 c2 Bd2 c1N Bg2 Nd3 Be1 f3 Nd6 f2 Qe3+ f4 Nf7+ Kh5 Qd2 f1R Qe2+ f3 Qf2 Nc5 Nc3 Ne7 g8N Nba6 Nd1 Ne6 Bd2 Re1 Nb2 Re2 Kb5 Bb7 Be3 Be4 Nd6 Bc2 Bd4 Qf8 Bg7 Re8 d8Q Qf4 Nc8 Qd6 Qd7 Re4 Qc6 Rh7 Qf1 f2 Nf3 Re2 Qe1 f1Q Nd2 Qff4 Qf2 Rh8 Rhe1 h1N Nf1 Re4 Re3 Rh6 Rd1 a1Q Rd4 a2 Ra3 Qb1 Rc4 a1Q Nf6+ Kg5 Qa8 Rh3 Nd7 Kh5 Be5 Qba2 Qd5 Re2 Qd2 Qb3 Ba8 Qf8 Rg4 Qf4 Qg2 Re4 Qdf2 Re2 Nc4 Qad4 Bh8 Qg7 Nb2 Qgf8 Bb7 Ng8 Na4 Nec5 Ra1 R8e4 Ba8 Ne6 Ra3 Ne7 Ba1 Qg7 Nb2 c6+
3RQ2b/6b1/3Bp1NR/1B3N2/3p1P1b/1R1P1qnk/bb1RQK2/n2brnn1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 a5 Bg2 axb4 Bf1 h5 c4 hxg4 Ba3 b5 Nc3 b3 Nb1 b4 Bb2 Ra5 Bc1 Rb5 cxb5 Rh6 Nh3 Rh4 Ng1 Rh8 f4 Kf7 h4 Kf6 a4 Kf5 b6 g5 d3 c5 b7 d5 a5 e3 h5 e2 h6 c4 a6 c3 h7 g3 a7 Kg4 a8R b2 Qc2 b3 R1a5 g2 Nf3 g1B Nfd2 Nf6 Rh2 Bd4 Rg2+ Kh3 Nf3 g4 Qd1 g3 Bd2 c2 Nh4 c1B R5a7 Bg7 Ba5 Nbd7 b8R Nc5 Nf5 Nfe4 Bb4 Re8 Nd6 Bg4 Rg1+ g2 Ra2 Ng3 Nd2 b1N R2a6 b2 N2c4 Nb3 Ne5 N1d2 Ng6 b1B Nf5 Ba2 Bd6 Na1 Rb3 Bcb2 h8Q+ Bh5 Qg8 Bdc3 Kf2 e1B+ Ke3 Bh8 Qe2 Bcg7 Qe6 Qd7 Rd8 Qc6 Qe5 Nge4 Rab6 Bh4 Ra6 Ng3 Kf2 d4 Qe6 Rf8 Qg8 Rf6 Qe8 Re6 Rab6 Qa8 Ra6 Bf3 Rc6 Re5 Rc2 e6 Rh1+ Kg4 Rh2 g1N Bg2 Ndf1 Rd2 Re3 Qe1 Be2 Bc6 Bd1 Bb5 Re5 Qe2+ Qf3+ Ke1 Be7 Rh6 Bh4 Nge7 Kh3 Ng6 Qd5 Kf2 Re3 Qh5 Re1 Qe2 Qf3+
1N1bk3/1Rq2N2/p2rbB2/P1R2b2/rQQr1b1b/rP1Q2pB/1Q6/1Kn2b2 w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h3 g5 Qd2 g3 Qd3 Nc6 Qd1 Ne5 h4 g4 Rh3 Nf7 Rh1 Ng5 hxg5 Ba3 Rh2 Bd6 Rh1 Bf8 Kd2 d5 Kc2 h5 f4 c5 e4 c3 a4 h4 e5 d3+ Kb3 g2 Ka2 c2 g6 c4 f5 g3 f6 d2 g7 d4 e6 d3 b3 h3 e7 h2 Be2 c3 Qf1 d1B Ba3 c1B Qf3 d2 Qe4 c2 Bb2 Rh4 Nc3 Be6 Bg4 Nh6 g8Q Nf7 Nb5 Be2 Nh3 g1R Nd4 d1R Qd3 Qc7 Ng5 Bf1 Nc6 Bf4 Nb8 c1B Bh3 Ne5 Nf7 Bce3 Rb1 Bb6 Rc1 Rg2 Rc2 Rgd2 Rc5 Ba5 Qg7 Rg4 Qc4 Rd6 Qg6 R1d4 Qgd3 B8h6 Kb1 Bhg5 Ba1 Bh4 Bc3 Be2 Rc1 h1B Rb5 Be4 Rb7 B4f5 Rc2 a6 Rc1 Bb6 a5 Bf1 Nc6 Re4 Qcd4 Rb8 Qe2 Bh6 Ng5 Kd7 Ra7 Bc4 f7 Qb7 Qb2 Nd3 Rc2 Nc1 e8Q+ Kc7 Qeh8 Kd7 Qd3 Bd8 Qg8 Qc7 Bf6 Rb4 Rb7 Bd5 Rc5 Rec4 Qe2 Rgd4 Qg2 Rc2 Qgd2 Ra2 Qb2 Rba4 Nb8+ Kc8 Rcb5 R2a3 f8Q Rc6 Qb4 Rd6 Rc5 Bc4 Nc6 Kd7 Qd5 Ke8 Nf7 Bf4 Nb8 Bb5 Qdc4 Bbd7 Q4d2 Bc8 Qdb4 Bce6
n2R1K2/QQ6/b1Qb3R/3nqrPr/NN2nk2/1p5b/2pqBpP1/1qB2Q2 w - - 0 1 illegal: No possible last move
2q5/2b5/k1B2Qqn/1p2Q1b1/Ppp2B1Q/n4rrR/K2PNr2/R2Q1bNn w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Kd7 e4 c5 a4 Kc7 h5 Kb6 h6 f5 h7 g5 d6 f3 e5 f4 d7 f2+ Ke2 g3 Kd3 c4+ Kc2 f3 Kb2 g4 e6 g2 e7 g3 e8Q Ka6 Ka2 b5 Na3 Bh6 Qde1 Nc6 Rh4 Nd4 Nc2 Bg5 Qh5 Nh6 Bd3 f1N Rh1 f2 Ne3 Rg8 h8Q Nc2 Qh4 Na3 Nf3 g1Q Nd5 g2 Bg6 Ng3 Qhe5 f1R Qd1 Rf2 Rh3 Nh1 Nf4 Bb7 Ne2 Qc8 d8Q Rf8 Ne1 R8f3 Be8 Be4 Qdd4 Bd3 Bc6 Ra7 Bb2 Rg7 Nf4 Bf1 Ne2 Be3 Qdd6 Rgg3 Qdf6 Bg5 Bc3 Qh2 Bd4 g1B Be3 Qg2 Bf4 Bh2 Qef5 Re3 Q5e5 Qe4 Nf3 Qg6 Nfg1 Rgf3 Qb2 Rd3 Be3 Bb8 Bf4 Bc7 Qbd4 Rg3 Qde5 Rdf3
qbR1Nq1b/1B1qn3/1n3N2/P2r2R1/k2n1pQ1/1r4pb/PK1p1R1B/2Q3R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 Kd2 f5 h4 d5 e4 Kd7 c4 Kc6 Kc2 g5 e5 b5 c5 d3+ Kb3 d4 e6 g3 h5 b4 h6 Kb5 h7 g2 c6 g4 c7 g3 e7 f3 e8Q+ Nd7 Qe6 f2 Nh3 g1B Qh5 Nb6 Qg4 Bd6 Qgg6 Ne7 Qe1 Rb8 Kb2 b3 Bd2 Ka4 Bg2 f1Q Be3 d2 Na3 d1Q Nb5 d3 Nf4 d2 Qg5 Qd7 Rh2 Rd8 h8R Qdf3 R8h5 Qa8 Nd5 Be5+ Bd4 Bh8 Nd6 Be3 Be4 Bf4 Qc1 Qf3 Nf6 Rb7 Kb1 b2 Nde8 Qa3 Kc2 b1N Qg4 Nc3 Bg1 Nb5 Rg5 Nd4+ Kb1 Be5 Rf2 f4 Bh2 Qad6 Nh7 Qh6 Nhf6 Qf8 Bd5 Qf5+ Be4 Rd5 Kb2 Bd7 c8R Bb8 Qc5 Be6 Rg1 Qh7 Qc1 Qhf7 Qe2 Bh3 Qg4 Qe6 Bd3 Qd7 Ba6 Rc7 Bb7 Rc3 Rh5 Rf3 Rg5 Rb3+
8/N2rB2n/Q1KRrq1b/pb1n1Bp1/q1b1RQ2/1P2n1B1/2p1P2B/k1N2q2 w - - 0 1 illegal: No possible last move
3B3n/q1nr4/qb1rBrPk/nB1NpP1p/2B1b1p1/2RR4/1bK1QN2/5Q2 w - - 0 1 illegal: No proof kernel
1Q3B2/r1BqN3/1q1b1p2/2n2b2/bkPpq2K/rr2R1Q1/3R1PRp/N2nR3 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 axb5 e5 h5 e4 h6 gxh6 e3 h5 Bc4 h4 Bd3 exd3 b4 Ke7 g4 Kd6 c4 h5 g5 a5 g6 f6 e4 a4 b6 d2+ Ke2 d3+ Kf3 h3 Kg3 h2 b5 Kc5 b7 d5 g7 a3 b6 a2 e5 Ra7 e6 Kb4 e7 Nd7 b8B Nh6 g8R Ng4 e8R Bd6+ Kh4 Ne3 b7 Qb6 Bc7 Nc5 b8Q Bf5 Qf3 d1B Nc3 d2 Rg2 Ba4 Qg3 d1Q Nf3 d4 Re1 h1Q+ Qh3 Qc2 Nd2 Nd1 Nb3 Qe4+ Bf4 Qc6 R8e3 Qd7 Bh6 Rc8 Rc1 a1R Bf8 Ra3 Rc2 Re8 Rd2 Rc8 Rg4 Qe4 Na1 Re8 Qg3 Rd8 Qb7 Rda8 Qb8 Rb3 Kh3 h4 Nd5+ Ka5 Ne7 Kb4 Kh2 Qee6 Kg2 h3+ Kf3 h2 Kg2 Nc3 Kh3 Nd1 Kh4 Qd5 Qf4 Qe4 Rg2 Bb5 Qg4 Raa3 Qf4 Ba4 Qg4 Ra7 Qf4 Qee6 Qg3 Qe4+
3Q4/r3Nq2/1P1nkB1n/KR2p3/1N1qb3/R1N1Pn2/1Nb1qpBp/2br1Q2 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 h4 Qc7 d4 cxd4 h5 Qd6 h6 gxf4 Kf2 Qxh6 Ke1 Qh2 Kd2 e5 g4 Ke7 b4 d5 c4 a5 g5 h5 b6 f5 b7 d3 Kc3 f3 c5 a4 e3 d2 b5 d4+ Kb4 a3 c6 h4 c7 f2 b6 d3 g6 h3 g7 f4 Qc2 d1B Ne2 a2 Qc4 d2 Nd4 f3 Nb5 Nh6 g8Q Ra7 Rg1 Bc2 Nd6 d1N Rh1 Nc6+ Kb5 B8f5 b8N Bfe4 Nc3 Nb2 Na6 Nd4+ Ka5 Kf6 Bg2 f1Q c8N f2 Qc6 Qf4 Qb5 h2 Nc4 Qe2 Ne7 Nf3 Bd2 Rh7 Rhb1 Qf5 Qg5+ Ke6 Bc1 Rd7 Nb4 Qf7 Qh4 Rd1 Qa6 Na4 Ba3 Nc5 Rb3 Rg7 Nb2 Rh7 Rb1 a1Q Qb5 Bd5 Qd4 Ne4 Qbd3 Ba8 Qd8 Nd6 Qa6 Qd2 Qf1 Qe2 Nba2 Rg7 Rb5 Bae4 Nb4 Qa2 Ra1 Qac4 Nbd5 Qd4 Bc5 Qf5 Nb4 Qg6 Ra3 Qh7 Nec6 Rd7 Ne7 Qf7 Bh1 Rc7 Bg2 Ra7+ Na6 Qh7 Ned5 Ng5 Ra1 Ndf5 Nc4 Rb1 Be7 Rd1 Bf6 Ba3 Ne7 Bc1 Nb2 Qf7 Ra4 Nf3 Ra3 Rb7 Nb4 Nd6 Ncd5 Rd7 Nc3 Ra7+
1q2R3/1Bb1Qn2/1pB1n2Q/1RR4b/N2p4/n3rpPk/K1qP1b1q/1rRN4 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 b6 gxh4 b4 Ba6 b5 Be7 b7 Bd6 b6 Bc5 Bb2 Bf8 Bd4 Bc4 Be3 Na6 b8R Bd5 Bd4 Bb7 Be3 Bc8 b7 Qg5 Bf2 Qd8 Bb6 cxb6 e4 Ke7 c4 Ke6 c5 h5 c6 f5 c7 d5 e5 h3 g3 f3 Na3 f4 Qc1 Kf5 Kd1 Kg4 Kc2 h2 Kb3 f2 e6 f3 e7 h4 e8R h3 Ne2 Bd6 Qd1 Nc5+ Ka2 a5 Qc1 a4 Re5 Ne6 Qb1 Nh6 Qb3 Re8 Qd3 Nf7 Nc4 a3 Bg2 f1N Rh5 Ne3 Rh7 Nc2 Rhc1 h1Q Nc3 h2 Qe3 Qd1 Qh6 h1Q Rab1 Qh2 Bf1 Ra4 Ra8 Rb4 b8Q Bc5 Qa7 Bf2 Na4 Bd7 Qb7 Qb8 c8B Bc6 Ra1 Rb1 Ncb2 Re7 Bb5 Be8 Kb3 a2 Bc6 Na3+ Rc2 Qe1 Rc5 Qe4 Rh8 Qg6 Raa5 Qh7 Rab5 Qc2+ Kb4 Rc1 Rb1 a1B Nd1 Be5 Qa7 d4 B8b7 Bc7 Ra1 Qe4 Kb3 Rb1+ Ka2 Qh7 Qf8 Kh3 Rg8 Ne5 Qh6+ Bh5 Rc8 Nf7 Re8 Rb3 Rac1 Rb1 Rb3 Ned8 Rbb5 Re3 Bd5 Ne6 Bbc6 Be5 Qe7 Bc7 Bb7 Qf5 Bdc6 Qc2+
Q1N3N1/Rq1r2q1/pN2n3/Bb2pB1r/2n1pR2/N1b1PbQn/P5r1/k4K2 w - - 0 1 legal: proof: c4 c5 b4 f5 h4 g5 Qc2 gxh4 Qe4 fxe4 bxc5 d5 Ba3 dxc4 Bb2 Bf5 Bc1 Bc8 g4 Kf7 f4 Kf6 d4 h5 d5 b5 c6 c3 c7 a6 f5 Ke5 g5 Kd4 g6 e5 d6 b4 f6 b3 d7 b2 f7 c2 g7 h3 Bf4 c1R+ Kf2 h2 Bh3 h4 Na3 Kc3 e3 b1Q Be6 Kb2 Nb5 h3 Bc4 Rc2+ Ne2 Nh6 g8Q Bb4 f8Q Qg5 d8N Nd7 Qfg7 Nf7 Nc6 Ra7 Na3 Nc5 Ne7 Rh5 Bg3 Nd6 Be6 Nc4 Bf5 Bd7 Qa8 Bb5 c8N Ne6 Ng8 Rd7 Bh4 Qg6 Bd8 Bc3 Ba5 Qf6 Rc1 h1B Kf1 h2 Qg3 Bf3 Nf4 h1N Nd5 Rg2 Ndb6 Nf2 Rd1 Qg7 Rc1 Qc2 Rd1 Nh3 Rd4 Re7 Rd7 Qb3 Ra7 Rd7 Re1 Qb4 Re2+ Ka1 Rf2 Bd1 Rf4 Bf3 Qb7 Qd6 Qd5 Qc7 Qa8 Qb7
4B1Br/bqrR1rp1/3b3q/pQ4QK/2P1p1P1/n3N2Q/n3bNQR/k3n3 w - - 0 1 illegal: No possible last move, all moves rejected
4QKR1/N1qp3n/r3P1B1/2Q2R1n/r1R1pBbb/1r1PR3/n3p1b1/q3Nk2 w - - 0 1 illegal: No proof kernel
4B1nK/q1p1QN1b/Nr4b1/3p2Pn/2NQ2P1/1kbR1pR1/1n1B4/r3rq1N w - - 0 1 illegal: No proof kernel
q3QR2/1p1pn1N1/k1r1Nb2/B4q2/Br2p3/Q2n2bK/2PPqb2/B3rR1B w - - 0 1 illegal: No proof kernel forced: wxLB
1N1qB1K1/P1q1b3/QR4r1/P1bRn1kN/3p1n2/B2Q1r2/p1rB1pB1/1b1n4 w - - 0 1 illegal: No proof kernel
1qR5/pr1N3B/1nQPpB2/1rB3rq/kbbn1R2/5q1b/N1p3PQ/1B5K w - - 0 1 illegal: No proof kernel
2R3RR/p2N2pq/K1R3n1/p1Pqr3/1bn5/2Nb1Bkr/P2B4/1r1Q1Qqn w - - 0 1 legal: proof: e4 c5 g4 h5 d4 hxg4 Qf3 cxd4 Qe2 f5 Qa6 bxa6 exf5 a5 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 h4 g3 f4+ Ke4 b4 e5 c4 g2 h5 d3 f6 d2 f5 Kf4 f7 d4 h6 d3 h7 e4 f6 e3 Nf3 g1Q Nc3 d1N Be2 d2 Ne5 Qd4 Bf3 e2 Nd7 e1Q Rh6 Nf2 Rg6 Bd6 f8Q Nc6 f7 Nh1 Qd8 Qee4 Rb1 Ne5 f8Q+ Qf5 Rh6 Bc5 Rc6 Kg3 Rb2 d1R Bd2 Qb1 Rc2 Ne7 Qf5 Re8 h8R N7g6 Qd3 Re1 Qf1 Qd5 Rc1 Bb7 Rc8 Bc6+ Ka6 Qc2 b5 Bb4 b6 Qf5 c5 Nc4 b7 R8e5 b8R Qh5 Rd1 Qh7 Rg8 R1e3 Rb6 Rb8 Re1 Ba4 Rbc6 Bc2 Re2 Bd3 Rh2 Ba3 Rh5 Rb1 Rh4 Qh5 Rh2 Qf5 Rhh8 Bb4 Qb6 Qh3 Qb5 Qh7 Qa4 Re2 Qb3 Rh2 Qbd1 Rh3
1r3K2/2B1Q2R/2Q1Q3/2B1n1QN/nn1qR1b1/1rN1Pp2/1kpp1P1b/3n1b1n w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 g5 d4 e6 h4 gxh4 e3 Qg5 Bd3 Qf6 Be4 dxc4 d5 Qe7 d6 Qd8 Bd5 exd5 Kd2 Kd7 Kc3 Ke6 Kb4 f5 Kc5 h5 g4 a5 b4 h3 g5 c3 b6 d4 g6 a4 g7 h2 b7 c2 b5 f4 b6 d3 Nf3 d2 Ne5 a3 Re1 h1B Ng4 h4 Qe2 f3 Rg1 a2 Rg2 h3 Nf6 h2 Na3 Ne7 d7 Nd5+ Kd4 c5+ Ke4 c4 Nh7 c3 Rg4 Bd6 Qb5 Nb4 Nf6 Bg2 Qc6 h1N Nb1 Ra3 Nh5 Rb3 Ba3 c1N Rf4 c2 Nc3 Qh4 d8Q Bf1 Qg5 Nd7 b8Q Ncd3 b7 Nb2 Qbc7 Ne5 b8B Nd1 Rc1 a1N g8Q+ Nf7 Q7b7 Bd7 Qgc8 Ne5 Bc7 Re8 Qa7 Rf8 Q8a6 Rb8 Kd4 Bc8 Re4 Bd3 Qcb5 Rb2 Rb1 Na2 Bb6 Bf1 Rg4 Ng6 Qba4 Bh2 Kc5 Nb3+ Kc6 Nc5 Qh7 Nd7 Bac5 Nge5+ Kc7 Rb5 Kd8 Rb2 Ra1 Nb4 Ke8 Rb1 Bd8+ Nb6 Kf8 Bd7 Rc4 Qe4 Q4b5 Qd5 Rg4 Qd4 Re4 Rb2 Qc8 Rb1 Ra7 Na4 Ne2 Kd5 Qbc6+ Kc4 Nc3 Bg4 Q8e6+ Nd5 Qhc7 Kb3 Q7d6 Rb2 Rh7 Rb1 Qee7 Nb4 Qde6+ Ka3 Qc4 Rb3 Q4e6 Rb6 Bc7 Kb2 Qc4 Rb5 Q4e6 Rb8+
3B1rkn/2n3NR/4p2K/B2n3B/1rPP2bn/1Npn1Q2/3br1p1/BQ3qR1 w - - 0 1 illegal: No proof kernel
NNr5/b1r4b/n2p1Nb1/nB6/1RRP1B1P/QQb5/4kpqp/NrKb4 w - - 0 1 illegal: No proof kernel
6nQ/2rrN1B1/p2Rb3/1qk3n1/BpBNr3/1n1KPp2/1rR2Pr1/2b2QB1 w - - 0 1 legal: proof: d4 b5 b4 c5 h4 g5 a4 gxh4 d5 cxb4 axb5 e6 Qd3 exd5 Qd1 d4 Kd2 Ke7 c4 Kd6 g4 h5 b6 f5 b7 d3 g5 h3 g6 f4 g7 h4 Nf3 h2 Ng1 h3 Ra4 a6 Nc3 f3 Nb1 Qa5 Ra3 Qb5 Qa4 Ra7 Qd1 Kc5 Ra5 d5 Nc3 d4 Ra2 Be6 Nd5 Nd7 b8B Rc7 Rc2 Rh4 Bb2 Re4 Bc3 Bd6 Ne7 Be5 e3 Bf6 Kc1 d2+ Kb1 d3 Ne2 Be5 Nd4 Bf6 Rg1 h1R Rg6 h2 Be2 Be5 Qf1 Rg1 Bd1 h1N Rh6 Ng3 Ba1 Bf5 Rd6 Rg2 Bb2 Be6 Bc3 Nh6 g8Q Bg7 Qh8 Ng8 Be2 d1R+ Kb2 d2 Kb3 Rc6 Kb2 Kb6 c5+ Kb7 Ndf5 Nb6 Rd5 Nc4+ Kb3 Rb1+ Bb2 Rg4 Bc7 Ne4 Bh2 d1R Bg1 Rc8 Rd3 Ng5 c6+ Kb6 c7 Rd4 Rdd2 Rd7 Rd6+ Kc5 Bd3 Bc3 Be2 Bd2 Bd3 Ra1 Bg7 Bc1 Be2 Rd4 Bd3 Re4 Nd4 Ra2 Be2 Qc6 Bd3 Rb8 Be2 Rb7 c8B Rd8 Bd3 Rc7 Bd7 Qb7 Ba4 Qb5 Rb2 Nd2+ Kc2 Nb3 Bc4 Rdd7 Kd3 Qb7 Re2 Qb5 Rc2 Rb2
2k1bN2/1R3b1P/3Kp3/3r1P1Q/nn1Bq1Q1/1R1QrQbp/p2NbnB1/7b w - - 0 1 illegal: No proof kernel
7q/1b2P2B/2krQp1B/2r3pr/1bR5/P1Q3N1/r1nbrn1p/1KBBNR2 w - - 0 1 illegal: No proof kernel
2qr4/K1NRNBpp/1Q1r1b2/Pnn1P3/1Q4Bn/B2k2b1/1R2pb1B/3br3 w - - 0 1 illegal: No proof kernel
3BBn2/3Rp1Q1/1r1Qb1r1/4nb1N/2b1p2k/QR2P1qp/1QP3rN/K1r3n1 w - - 0 1 illegal: No possible last move, all moves rejected
2bQ4/2pQ1r2/1NrR4/nBP2p2/1Q1K3r/nbNR2Qn/2pq2Pb/3B1b1k w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 b4 exf4 Ba3 axb4 Bb2 d4 Bc3 dxc3 Kf2 Kd7 a4 Ke6 d4 Kf5 d5 Kg4 e4+ f3 Ke3 Kg3 e5 b5 a5 f5 a6 h5 g6 h4 e6 b3 c5 b2 e7 f2 e8B b4 g7 c2 a7 h3 d6 h2 d7 b3 Bb5 f1B Qc1 Nc6 Na3 b1B Bd3 b2 Nc4 Rh6 Qd1 Na5 Kd4 Bd6 Be2 Ne7 g8Q+ Ng6 Nb6 Ba2 Bb5 b1N Ne2+ Kf2 Nc3 Bb3 Ra3 Nf4 Bh5 Nh3 Qd3 Bg3 Bd1 Rc6 Qg7 Qg5 d8Q Qd2 Qgd7 Rb8 Rg1 h1R a8Q Bh2 Qa7 Ra8 Qb7 Ra6 Qb8 Rf6 Qb7 Rf7 Qe4 Be2 Re1 Bf1 Qg4 Kg1 Re6 Bd5 Rd6 Bb3 Nbd5 Rc6 Nb6 Qh6 Qdg3 Qd2+ Ke5 Nf2 Qb4 Nh3 Ra4 Na3 Rd3 Nb7 Ra6 Na5 Kd4 Rh6 Qf4 Bg3 Ne4 Ng5 Na4 R1h4 Nec3 Nh3 Re6 Bh2 Nb6 Kh1 Rg6 Rf6 Qg4 Rc6 Rd6 Rh7 Qf4 Rf7 Qg4 Rh5 Qg3 Rh4+
2Q2Q1b/Pr1nK3/k3r3/1p2N1B1/2n2Pr1/2bRpN2/p1B1RNN1/q2nb2b w - - 0 1 illegal: No proof kernel
1nkN2nn/2r1q2q/bnR5/p6B/2b3pR/PP6/rBBBpQ2/K3Nn1Q w - - 0 1 illegal: No possible last move
R1n4k/b3qp2/bBKN1q2/p2B1P1r/p5B1/1R1r1B1n/QQP2r2/r1Nr4 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 d5 a4 bxa4 h4 dxe4 Ke2 g5 Ke1 gxh4 Ke2 a5 Ke3 e5 d4 h5 g4 h3 f4 h2 d5 h4 d6 h3 g5 Bg4 c6 Ne7 g6 Na6 c7 Nc8 g7 Be2 g8B Qf6 Na3 Rh5 Qd4 Nc5 Nc4 Nd3 Rb1 Nf2 d7+ Ke7 Nd6 Ba6 d8Q+ Ke6 Nc4 Bc5 Bh7 Ba7 Ne2 Rb8 Rg1 h1R Nd6 h2 Rb3 Nh3 Rg8 Ra8 Bg2 Rf1 Ba3 h1R Nc1 Rf2 Bc5 Rd1 Bf3 Rb8 Qa1 Rb4 Bb6 Rbd4 Qa2 Rd5 Nb5 R5d2 Qd4 Ke7 Rg5 Kf8 Qdb2 Rd6 Bg6 Kg7 Bf5+ Kh8 B5g4 Rff1 f5 R6d3+ Ke2 e3 Nd6 Rh1 Bd5 Rh2+ Kf3 e2+ Ke4 Rf2 Rg6 Ne7 c8B e1R+ Ne2 Rg1 Bcb7 Nc8 Rg5 Ra1 Nc1 Rgd1 Rg8+ Kh7 Bc4 Ne7 Rb8 Nc8 Ra8 Kg7 Bd4 Kh8 Kd5 e4 Bc6 e3 Bb7 Rc3 Bce2 Rcd3 Bef3 e2 Bc6 Bb8 Kc5 e1Q Bcd5 Qe7 Kc6 Ba7 Bc5 Rfd2 Bb6 Rf2
1KbN4/B1b1p1Rn/2bB2P1/2r2P2/1r1NqnbQ/kB3qp1/3p2QR/3Bb3 w - - 0 1 illegal: No proof kernel
1Q3q2/pBbk1P1B/Pp1Nr1Q1/1K1qr3/1n2RNp1/N4b1r/3N1r2/1R3r1n w - - 0 1 illegal: No possible last move, all moves rejected
1B3Rr1/2KNN1Rn/1n2n1bk/6r1/p1R1BpPr/1n6/1QPb1pq1/3qQ1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 Kf3 Kf7 e4 Kg6 g4 d5 b4 a5 b6 h5 b7 h3 e5 d3 b5 h4 e6 d2 b6 d4 e7 a4 e8Q+ Kh6 Bc4 h2 Qd7 d3 Qb5 h3 Bf7 Nc6 b8R Nf6 b7 Na5 Bh5 Nh7 Qb4 Nb3 Ra3 Qd5+ Qe4 Rg8 Qe1 d1N Bg6 d2 Nc3 Ra5 Ra8 Bg7 b8R Ne3 Rb7 Nc4 Re7 Bd7 Rf8 Be8 Ra7 Bf6 Rg7 Nb6 Bb2 Qa8 Qb7 Bg5 Nd5 d1N Bd4 Nc3 Be5 Nb5 Ne7 Nc7 Bd6 Ne6 Bb8 Na1 Rd3 Nb3 Rc3 Re5 Rc4 Bf7 Kf2 f3 Kg3 f2 Nf3 Bd2 Rg1 Ra5 Ne5 h1Q Nd7 h2 Nf6 Qd5 Nd7 Qd6+ Kf3 f4 Ke4 Rg5 Bf5 Qd3+ Ke5 Qe2+ Kd6 h1R Kc6 Bg6 Be4 Rh4 Kd6 Nd5 Qb5 Nb6 Qe5 Qd1 Qb2 Nec5 Kc7 Qd5 Bf5 Qg2 Be4 Ne6+
rk1B1R2/1N2n3/4N2q/nqbp1bPb/2pP2B1/2Q2b2/KpRQ2n1/3Rr2R w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 c3 axb4 Rh2 bxc3 Rh3 Ra7 Rh1 Ra8 f4 e5 a4 b5 d4 c5 g4 h5 a5 d5 a6 Kd7 a7 Kc7 f6 c2 Kd2 b4 f7 c4 f5 e4 f6 b3 Kc3 e3 Kb2 e2 Bh3 e1N Qd3 Bc5 f8Q Ng2 f7 Qe8 Qe2 Ne7 Bg5 Nbc6 Nc3 Bf5 Qd2 Na5 Nf3 Qb5 Ne4 Re8 Rab1 c1Q+ Ka1 Kb7 a8R b2+ Ka2 Kc7 Nd6 Rg8 Ra6 Kb8 Nb7 Rh8 Qc3 Qf4 Bf6 Qh6 Ng5 Rg8 Ne6 Rh8 g5 Rg8 Bg4 h3 Rbd1 h2 Ra7 h4 Qc1 h3 Qc3 Rh8 Rd2 Rg8 Rhd1 h1B Rc2 h2 Qd2 Ne3 Ra6 Bf3 Rb6 h1B Rc6 Ng6 Bd8 Ng2 Qe7 Rh8 f8R Rg8 Qf7 Ne7 Qh5 Rh8 Qh3 Be2 Qhc3 Bf3 Bh3 Bh5 Bg4 Nf4 Nc7 Bf3 Re6 Ng2 Ree1 Nec6 Rh1 Re1 Ne6 Ne7 Rf6 Re8 Rf8 Ka7 Bc7 Ra8 Bd8 Kb8
2b2b1n/n1q1B1bR/N3b3/1p4B1/1n1PkrRQ/P2pqNK1/p7/1Br1B2Q w - - 0 1 illegal: No proof kernel
1BBN1Rb1/1R1QnK1Q/4nb2/PpP2r2/3qr1N1/4p1pB/k2q1B2/r4r1q w - - 0 1 illegal: No possible last move
N1qqB2K/1n1b1RrR/k2r1P1r/3p2pN/6r1/PQ5N/p4b2/N2Q1qBn w - - 0 1 illegal: No proof kernel
N1q2bKR/RQ2BBn1/3qrP1p/2k3q1/2q2n1P/4pb1N/Q1p5/Nrr2N2 w - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 a4 dxc4 axb5 fxe4 f5 g6 Qg4 g5 Qf4 gxf4 Ke2 Kd7 d4 Kd6 g4 a5 b4 c5 g5 e5 f6 a4 g6 c3 b6 c2 g7 f3+ Ke3 f2 d5 c4 b5 c3 b7 a3 b6 a2 Bc4 f1Q Nh3 Ra6 Nd2 Nh6 g8Q Nc6 b8N Qd7 b7 Nd4 Nc6 Kc5 b8Q Qd6 Na5 Ne6 Qb7 Nf4 Qe6 Qg2 Nf1 Qg5 Bb3 Rb6 Ba3+ Rb4 Bc4 c1R Qef7 c2 Qg8 Qd8 d6 Bg4 d7 Qc8 d8N Bf3 Bf7 Nf5+ Kf2 Ng7 Ke3 Kd6 Ne6 Qc4 Nc7 Kc5 Na8 h6 Nb3+ Kd6 Rb1 a1Q Rb2 Qb1 Na1 Kc5 Rb3 Qa2 Rd3 Qe6 Rd8 Qac4 Rg1 Qc8 Rg2 Ngh5 Rgd2 Rh7 R2d6 Ng7 Ra6 Qg6 Ra7 Qh5 Kf2 e3+ Kg3 e4 Re8 Qhd5 Kh4 e2 Rd8 e3 Re8 Kd4 Rd8 Rb6 Be7 Re6 Re8 Qd6 Rd8 Bh1 Kg4 e1Q Re8 Ngh5 Kf5 Qh4 Rd8 Rg7 Re8 Rg1 Rd8 Ng2 Kg6 Kc5 Kh7 Ng7 Be8 Rb1 Nf2 Qb4 h3 Re5 Nh2 Qg5 h4 Rgc1 Nh3 Nf4 Nf1 Bf3 Qa2 Re6 Bf7 Qc4 Re8 Ngh5 Rd8 Bg7 Rg8 Bf8 Rh8 Ng7 Kg8 Qe5 Bh5 Qf5 Bf7 Qg5
q4Q1Q/N1b1bK2/rr1kP1BR/1Rp5/QQ4pq/4bbP1/p5Bn/3n1rN1 w - - 0 1 illegal: No extended proof kernel
3R1b1B/r1QbQNB1/q3P1p1/4qB1p/4pq1B/Pq1N4/n2Rrn2/k3Kb2 w - - 0 1 illegal: No possible last move, all moves rejected
5rQ1/B2qn3/N1N1p1pP/2NqRQ1q/1P1Rb1pb/r1n2r2/2q5/k2BK1N1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 c4 Ke6 b4 d5 h4 a5 f5+ Ke5 h5 g6 c5 d3 f6 Kd4 b6 a4 b7 e3 c6 a3 h6 a2 f7 d2+ Ke2 e6 c7 Ne7 Nc3 Ra3 Na4 Nbc6 b8N Bb7 c8N Na7 Rh4 Qd7 Qc2 Nb5 Rb1 a1Q Bh3 Nc3+ Kf1 d1Q+ Kg2 e2 Kf2 e1R Qf5 Re3 Bf1 Qc2+ Be2 Rf3+ Ke1 Bg7 f8Q Bf6 Qd8 Rf8 Rh5 Bg5 Bf4 Bh4+ Bg3 Qab2 Na7 Qbc1+ Bd1 Qg5 Ra1 Kc4 Bf2 Kb3 Qc8 d4 Nc5+ Kb2 Nba6 Be4 Nc6 d3 Rb1+ Ka2 Rb2+ Ka1 Qe8 Qa4 Rd2 Qc2 Qef7 Qf6 Qg8 Qe5 Qff7 Qh2 Rd5 Qh3 Qf5 Qh2 Rd4 Qd5 Re2 Qhe5 Qf6 Qh5 Qf5 d2+ Kf1 Qca2 Rd3 Nb1 Nd7 Qd6 Ba4 Bd5 Re5 Be4 Ke2 Qc4 Ba7 Qcd5 Ndc5 Qd7 Bc2 Rf4 Rd4 Nc3+ Ke3 d1Q Bb3 Qb1 Kd2 Rf3 Bd1 Bf6 Ke1 Qc2 Ne2 Bg5 Ng1 Bh4#
1K2N3/3B1r2/2PBp1b1/1Q3r2/RPb1rR1Q/Rp3N1q/p4n1b/nqR2r1k w - - 0 1 illegal: No proof kernel
6rq/QRQ1b3/1PK2bR1/NB6/3kB1Q1/n4ppQ/1Nb1pPq1/1n2qr1b w - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 h5 Ba3 hxg4 axb5 dxe4 b6 Qd5 b5 Qd8 Bb4 cxb4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 a5 h4 g5 d4 f5 d5 g3 c3 g4 b7 e3 b6 e4 Kb5 Ke5 c4 f4 d6 g2 h5 g3 d7 b3 h6 e2 c5 e1Q c6 e3 h7 e2 c7 a4 Qc1 b2 Nd2 b1B Qc4 a3 Rh6 a2 Nh3 g1Q Bg2 Be7 Be4 Qg2 Nb3 Nf6 Na5 Nd5 Rg6 Nc6 b8Q Bb7 Qa7 Ncb4 c8B Bc2 Rc1 Qg8 d8Q a1B Bd7 Qe8 Qdc8 Rg8 Q4c7+ Kd4 Bc6 Qf8 h8Q+ Qf6 Qh4 Qh8 Qcg4 Rad8 Ng5 Bc3 Nf7 Ba8 Ne5 Rc8 Nac4 Bb2 Qhh3 Nc3+ Ka5 Nb1 Kb5 Bb7 Nd3 Bc3 Ndb2 Ra8 Qab8 Ra1 Qa7 Ba4+ Ka5 Qeg1 Qa6 Q2h1 Bg2 Nd2 Rf1 Kc5 Qd8 Bcf6 Rc1 Nc2 Qa7 Na3 Be8 Be4 Ka6 Bd5 Na5+ Kd4 Rc7 Bc2 Rb7 Rc1 Qc7 Ndb1 Rb8 Qd1 Bb5 Qd2 Bf3 Rf1 Bg2 Qe1 Bf3 Be6 Kb7 Bef5 Bd5 Bfe4 Kc6 Qh2 Rb7 Bh1 Bf3 Qg2 Be4 f3
2q1n1Bk/1QQnR1q1/P1Rr1p2/Kqp4n/b2rN3/2B3pn/3b1RP1/2NR4 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 h4 axb4 h5 Qd6 h6 Qxh6 Nh3 Qh5 Ng1 Qh2 e4 c5 d4 g5 Kd2 b5 a4 h5 a5 h4 a6 f3 d6 g4 d5 h3 e5 f2 e6 b3 Kc3 b2 e7 b4+ Kc4 b3 Kb5 Bh6 Ra2 Qg3 Bc4 f1N Be3 h2 Kb6 Bd7 Qe2 Ba4 Na3 b1Q Qe1 b2 Ne2 Qf5 Bd2 b1Q+ Ka5 Qc8 Nb5 Nf6 Nc1 Nbd7 Bc3 Bd2 Qe4 Rh4 Rg1 h1N Qf3 Bg5 Rf2 Bd2 Ba2 Qe5 Qe4 Nfg3 Rd1 Ngh5 Qb4 Ne4 Bc4 f6 Qb2 Kf7 e8R Kg7 Re7+ Kh8 Qb3 Nb6 d7 g3 d6 Qg5 Bg8 Qg7 d8Q Nd7 Qc7 Rb8 Qd5 Rb6 Qdb7 Qd3 Nd4 Rf4 Ne6 Qc4 Ng5 Rg4 Rf3 Nhf2 Rf5 Nh3 Rf2 Nb8 d7 Nd6 d8R Rd4 Rde8 Nd7 Ne4 Qb3 Rf8 Ne8 Rff7 Qc4 Re6 Rbd6 Rfe7 R6d5 Rb6 Rd6 Rc6 Qb5+
2BR4/B2N4/p1K1N1Q1/5nr1/nrq2bP1/3Bbpb1/qpb2BPk/1n3QR1 w - - 0 1 illegal: No proof kernel
q2Bbq2/qB4k1/pK2QR1b/1nB1PP1p/Q2Nr2r/nr1B2q1/pR6/N7 w - - 0 1 illegal: No proof kernel
5Bn1/2BQnNR1/p2q2pq/1R4NB/3n1kr1/7P/1KpP1nQq/1b1Bbr2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 e4 Kd7 b4 Kd6 b6 Ke5 b7 f5 b5 c5 b6 a6 h3 c3 Ke2 g3 Qa4 f3+ Kd1 g2 Kc2 c4 Qb4 f2 Ne2 g1N Ra2 f4 Ra1 f3 Nd4 Kf4 e5 Ne2 e6 Nc6 b8B+ Qd6 e7 Rh4 e8B Rg4 b7 Be7 Nb5 Bh4 Bh5 Nce7 Ba3 Nd4+ Kc1 c2 Bc7 Rb8 Be2 f1Q+ Kb2 c1N Qa4 f2 Rg1 Bf5 Bd1 Qe2 N1c3 f1Q Ne4 Rf8 b8Q Be1 Qa8 Qh2 Ng5 Bb1 Qg2 Qf2 Bc5 Qe3 Ra3 Qe6 Rb3 Qh6 Rb4 Nce2 Rb3 Ng3 Rb4 Nh1 Rb3 Qe5 Nd6 Nf2 Ndf7 Qed6 Qd7 c3+ Ka1 c2 Rb5 Ng6 Kb2 Qe5 Be7 Qd6 Ne5 Rf6 Bf8 N6e7 Nef7 Rg3 Rb3 Nh1 Ne6+ Kf5 Qa8 Rg5 Rb7 Ke4 Rg3 Rf1 Rbb3+ Kf5 Qg2 Nf2 Rb8 Rg4 Rbb3 Rf4 Rg6 Rg4 Neg5+ Kf4 Rb5 Qh7 Rh6 Qh8 Rh7 g6 Rg7 Qh6
r1r1krR1/2Q1b2P/q3B2R/1p2N1pn/r1PK4/1qBbn1p1/q4N1R/1R5Q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 d5 a4 g5 c4 b5 f4 g3 h4 b3 h5 b2 a5 Ne7 f6 Bh3 f5 Nd7 a6 Qa5 a7 Qa6 Nd2 b1Q+ Qc2 Bg4 h6 Qba2 Nh3 Bd1 Nf3 e4+ Kd2 d3 Ke3 d2 Bb2 Be2 Bc3 d1Q Rb1 Bd3 Kd4 e3 Nf2 e2 Rh2 e1R Ne5 Qf3 Bh3 Rf1 h7 Qd1 Qa4 Qdb3 Qa5 Rc8 a8Q Rg8 Ke3 Rh8 Qc7 d4+ Kf3 Nd5 f7+ Ke7 Qac6 Ne3 Q6b7 Bg7 f8R Bf6 Rf7+ Ke8 Qd5 Bd8 Rf6 Be7 Rh6 Nf6 Qdb7 Nh5 f6 Rg8 Be6 Rf8 Rb2 Ra1 Rb1 Qd2 Qe4 Ra4 Qa8 Qda2 Qd5 Bf1 Ke4 d3 Kd4 d2 Qh1 Be2 Qa7 Bd3 f7+ Kd8 Qab7 d1R Qb8 Rf1 Qa7 Re8 f8R Ra8 Rh8 Rg8 Qc7+ Ke8 Nfg4 Rf6 Nf2 Rgf8 Rg8 Rg6 Bf5 Rc6 Be6 Rc5 Qb6 Rcc8 Qbc6+ Kd8 Qc7+ Ke8
q7/1RnbN2p/3r1QB1/1pR3r1/R2Pr3/b2P1N1R/rB1b1Kp1/Q1qk1n2 w - - 0 1 illegal: No proof kernel
1bqk1r2/1b4Np/R1B1pq1R/K1Qn1qb1/1QRbP1Nr/3P1R2/4p1n1/B7 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 Qc2 gxh4 Qc3 f4 Qe3 fxe3 g4 a5 b4 c5 f4 e6 f5 c3 b6 a4 f6 c4 g5 c2 f7+ Ke7 g6 a3 b7 c3 b5 a2 b6 h3 g7 h2 Ne2 Ra4 Nf4 Rb4 Bb2 c1B Nh5 c2 Bb5 e2 d3 Qd4 Nc3 Bg5 Nd1 c1Q Bc6 Nf6 g8R Ng4 Ng7 Na6 b8Q Rb5 b7 Qf6 Qe5 Kd8 b8Q Nb4 Qc5 Ne3 Bd4 Qc2 Nf2 Nbd5 Ng4 Ra5 Qbb5 Bb7 Qbb4 Qc4 Rc1 a1B Kd2 Bb2 Be5 Bd4 Ra1 Rb5 Ra6 Ra5 Rc1 h1Q Rc2 Qb5 Rc4 Ng2+ Kc2 Ra1 Kb3 Rf1 Ka3 Rf4 Kb3 Qh3 Ka3 Qb6 Ka4 Qc7 Kb5 Qc8 Ka5 Be3 Ba1 Bd4 Be8 Bd6 f8R Bb8 Rf7 Qe7 Bc6+ Qf8 Rf6 Qh5 Rh6 Qf7 Nf5 Qf6 Rgg6 Q8f7 Ng7 Rf8 Rh3 Qf5 Rgh6 Q7g6 Rf3 Qgf6 Ne5 Rh4 Ng4 Qf4 Qb2 Q4e5 Qbb4 Qef5
rQR4R/3B1nP1/2bN4/1q1pQKq1/kpnb1pP1/1N6/q2R2RB/4qr1b w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kf2 b5 Kf3 h5 Ke4 b3 g4 b4 a4 f6 c4 h4 a5 h3 c5 h2 a6 b2 g6 d6 c6 f3 c7 Kd7 g7 Kc6 a7 Kb5 Ra2 d3 Bf4 f2 Nh3 d2 Qe1 d1Q Ng5 Bd7 c8R Nh6 Nf7 Nc6 Nd2 Na5 Nb3 Nc4 Rg1 h1B+ Rg2 b1Q+ Rc2 Rg8 Bh2 Qa2 Rd2 f5+ Kf4 d5 e4 Bc6 e5 Qf6 e6 Ka4 Nd6 Nf7 Qe5 Qe1 e7 Rh8 e8R Qg5+ Kg3 Rh6 Bd3 Be7 Rh8 Rf6 Kf3 Bd8 Bf1 Bb6 Be2 Rb8 a8Q+ Ba7 Qb7 Ra8 Qb8 Bd4 Bd3 Qg6 Kf4 f1Q+ Rdf2 Na3 Ba6 Qb5 Rd2 Nc4 Rce8 Ne3 Bc8 Nc4 Bd7 Qg5+ Kf3 Re6 Rc8 Re7 Qf4 Re2 Qe5 Rf2+ Kg3 Qf4+ Kh4 Rf1+ Kh5 Qfe3 Kg6 f4 Kf5 Qh3 Rge2 Qhh4 Rg2 Qg5+
bBQ4b/2Q1Q1Pn/3R2BK/rp3nRN/p2rQ3/1qb2p2/q3NP2/5nnk w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a4 d5 axb5 dxe4 b6 c6 b5 cxb5 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 a5 g4 h5 d4 f5 b7 e5+ Kg6 e3 c4+ Ke4 c5 f4 d5 e2 c6 e1B d6 a4 g5 h3 d7 h4 c7 h2 Nf3 h3 Qb3 Nh6 Kh5 Bg7 g6 Qg8 d8Q Nd7 b8Q Nf6+ Kg5 Ra5 Bg2 Bb7 c8Q Ba8 Qbd1 Qa2 Qe7 Rd8 Qbc7 Nh7+ Kh5 Bh8 Rg1 h1Q g7 h2 Qa7 Rd3 Be3 Bc3 Qc2 Qb3 Bh3 Qa2 Rg3 Qd1 Rg5 h1N Be6 Nf5 Bf7 Nhg3+ Kg6 Bd4 Ne1 Nf1 Ng2 Kf3 Nc3 e4 Kh5 Qdb1 Bg6 Qbb3 Rd1 Be5 Bb6 e3 Qac7 e2 Ba7 e1N Ne2 Bc3 Bb8 Rd2 Ne3 Rd6 Ng4 Kg2 Qce4+ Nf3 Nf6+ Kh2 Rd2 Ng1 Rd3 f3 Rd1 N5e3 Kh6 Kh1 Nh5 Rd7 Rd6 Rd8 Rc6 Rd4 Rd6 Nf5+
B4Q1b/1R1NbrP1/bB1q2Pr/2r4B/n2Kb3/1p1Rn1kq/2Npp3/1B3Q2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Ke2 Kf7 f4 Kg6 a4 Kf5 c4 Kg4 c5 h5 c6 b5 c7 d5 f5 e5 f6 d3+ Ke3+ Kg3 f7 h4 g6 d2 a5 b3 a6 h3 a7 b2 Bc4 h2 Qh5 d1R Ra6 d4+ Ke2 d3+ Ke3 b4 Be6 b3 Ra2 Nf6 Qh7 Be7 f8Q Rf1 Na3 b1B Bf5 Qd6 Qhf7 Rh6 Rd2 Nbd7 Nc2 Ba6 c8B Nc5 Nf3 Na4 Bb2 Rb8 a8B Rb5 Bd4 Rc5 Bg4 Rf2 Bh5 Rf1 Rg1 h1Q Bf5 Qh3 Rd1 Rd5 Bb6 Rc5 Nfd4 Rf4 Nc6 Rf1 Nb8 Nd5+ Kd2 Ne3 Nd7 Bf6 Qc4 Bh8 g7 Rf4 Bh7 Rf7 Rgf1 Nb2 Kc3 d2 Rc1 Kh2 g4 Kg3 g5 Na4+ Kb4 Ng2 Rg1 e3 Qf1 e2 Bhe4 e1B g6 Bf2 Bf5 e4 Rh1 Rb5+ Kc4 e3 Bfe4 e2 Rh2 Qa3 Kd3 Ne3 Kd4 Be1 Rf2 Rc5 Rf3+ Kh2 Bd3 Bh4 Bf5 Be7 Rg3 Nd5 Rd3 Ne3 Nb4 Re5 Rc7 Kg3 Nc2 Rb5 Rb7 Qd6+ Ke4 Qb8 Kd4 Rc5 Be4 Qd6+ Bd5 Rf6 Nb4 Bd8 Rc3 Qb8 Be4 Be7 Bc2 Rf7 Bf5 Bbd3 Be4 Bdb5 Bb1 Bc6 Nc2 Be4 Rd3 Qd6+
3Q2Nb/2Q1n1Pp/q3b1NN/1qpb4/2r1N2r/p2R1B1K/2nqR1P1/1k2b1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 b4 Ke6 d4 Kd5 g6 Ke4 d5 a5 b5 c5 d6 f5 b6 a3 b7 f3 Kg3 f4+ Kh2 c3 e3 a4 d7 f2 Qg4 a2 Bb5 f1Q Nh3 c2 Bc6+ Kd3 e4 f3 e5 f2 e6 Bg7 e7 Na6 e8N Ne7 b8Q Nb4 Nc3 Rg8 Qh4 Bh8 Be3 c1B Nf6 Kc2 Nf4 Qb5 Re1 f1B Bf3 Bc4 Qc7 Bd2 Bg1 Bd5 Rad1 a1Q Nce4 a3 Qg5 Ra4 Kh3 Rg7 Ng8 Qf6 Qh4 Qfa6 Re2 Kb2 Qg5 Nc2 Qf6+ Bc3 Rd3 Rc4 Qfb6 Kb1 Qf6 Rf7 g7 Be1 Ng6 Rf8 Qfb6 Rf4 Qa5 Rg4 Qd2 Qe8 d8N Bce6 Nf7 Qd8 Nfh6 Qdd6 Qda5 Qf4 Qd8 Qd2 Qac7 Rh4#
3b1qQ1/4nP2/2p1Pb1b/1N1RR1NB/B3Qq1p/1pr2b2/2q3kB/KnB1r3 w - - 0 1 illegal: No proof kernel
2nk1NN1/n2B1p2/3Qn2P/8/2P1qqpp/rB1RB2R/1B3brb/n2KQ2b w - - 0 1 illegal: No proof kernel
3R1B2/5pN1/3RP2K/2rpN1Qb/1Pr1nb2/kb1qr1nb/p3N1B1/qQN5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kh5 Kb4 g4 a5 c4 h3 e4 f3 c5 f2 c6 d3 b3 a4 g5 a3 g6 d2 e5 a2 b6 h2 b7 Ra5 c7 Bd6 g7 Nc6 b8N Nce7 Kg5 h5 Nc3 h4 Nh3 Rc5 Ne2 Nf6 g8Q Nf5 Nhg1 h3 Bg2 f1B e6 Ba6 c8N Bc4 Bb2 Rh4 Qb1 d1B Ne7 Ng3+ Nf5 Re4 Bd4 Re3 Kh6 Ka3 b4 Bcb3 Nc1 Bf4+ Qg5 Bh5 Ng7 Nfe4 Nge2 d6 Rg1 h1R Nc6 h2 Ne5 Rc4 Bc5 Qd7 Bf3 Bh3 Rd1 Rf1 Bg2 h1Q Bb6 Qb5 Bd8 Rff3 Be7 Rec3 Bf8 Rfe3 Rd5 Rc2 Rc5 Qa6 Rc8 Rc5 Rd8 R2c4 Qc2 Qd1 Rb1 Qd4 Rb2 Qc3 Qb1 d5 Rc2 Qa1 Rd6 Rd4 Rd8 Qd3 Rc4 Rc8 Rc6 Rc4 Rcd6 R8c5
2nqnKb1/B1k1P3/r4r2/1p2p3/1bNp2QQ/1QN1Q3/rrB1P1qR/4q2R w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 d5 e5 f5 Qe7 d6 Qe6 fxe6 cxd6 Kd2 d5 Ke1 d4 Kf2 Kd8 Kf3 f5 c4 d5 g4 h5 a4 b5 c5 f4 g5 d3 c6 h3 a5 h4 Kg4 h2 Kf5 d2 Kg6 b3 Kf7 b2 a6 f3 g6 f2 a7 h3 g7 Nd7 Nf3 Ngf6 g8Q Kc7 Qh7 Bb4 e7 Ne8 Bg2 f1R Qb3 d1Q Nc3 b1R Qh4 Rh6 Be3 Nb6 Kf8 Rb2 Bc5 Bf5 Nd2 Nc8 Nc4 Be6+ Bf2 Bg8 Be4 Qd4 Bc2 Qb6 Ra3 Ra1 Bc5 d4 Ra6 Raa2 Ra3 Rb8 a8Q Rg6 Qa6 Ra8 Qa5 Ra6 Qaa4 Kb8 c7+ Kb7 Qa5 Qd6 Bb6 Qd8 Ba7 Kc6 Qb6+ Kd7 Qbf6 Rh6 Qfg5 Rhd6 Ra1 h1Q Qe3 h2 Rf1 Qb7 Rf2 h1Q Rh2 Qbg2 Ra5 Kc6 Ra4 Qe1 Ra5 Nb6 c8Q+ Qc7 Qf5 Nc8 Qfg4 Qd8 Ra3 Kc7 Ra4 Ra1 Ra3 Rd1 Ra1 Rd2 Rb1 Rba2 Bf5 Rdb2 Bc2 Qd2 Rf1 Qe1 Rfh1 Rf6+
k2rbn2/NqBNPP1K/7p/2rb4/pr2nb2/3r4/1R1qBN1p/2Q2QNR w - - 0 1 illegal: No proof kernel
8/1b2pr2/4nNP1/6K1/Q1RpbnPQ/1NbN3q/pB2n1k1/1rnB1NqR w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 Kf7 b4 Ke6 c4 Kf5 g4+ Kf4 f3 Kg3 f4 a5 f5 d5 c5 h5 b5 h4 c6 d3 Ke3 d2 b6 a3 c7 a4 f6 h3 g6 h2 b7 a2 f7 a3 Be2 Bg7 f8Q Na6 b8N Bc3 Qe8 Kg2 Kf4 e3 Qda4 d1N Qf8 d4 Kg5 Bb7 c8N Rh7 Bd2 Nf6 Bc1 Rf7 Nd7 Nd5 Kh6 Rb8 Nd6 Nc5 Bb2 Ne6 Ne4 Ndf4 Ng3 Be4 Qg7 Qh8+ Qh7 Rb5 Nh3 Bb7 Bc4 e2 Nf1 e1N Nf6 Ned3 Nbd2 Nc1 Nf2 Rb6 Rb1 a1Q Be2 a2 Nd3 Rb3 Ba3 Rb5 Rb4 Rb6 Rc4 Rb1 Bb2 Be4 Ng3 Bb7 Nb3 Be4 Re1 h1B Rf1 Ba5 Re1 Nc3 Bd1 N3e2 Rf1 Bc3 Rg1+ Kh3 Nf1 Bhf3 Rh1+ Kg2 Nbc5 Nd8 Kg5 Nde6+ Kh4 Bb7 Nb3 Bfe4 Qh6 Nc5 Kg5 Qh7 Qf8 Qh3 Qh8 Bec6 Ng3 Be4 Nb4 N1d3 Bc2 Re1 Qh6 Qc1 Qh4 Qe3 Nf1 Rb1 Bd1 Ndc1 Nd3 Qf2 Ba1 Qg1 Bb2 Nce6+
Bb1qk2q/3p4/1r1BPR1B/2P1q3/b2q2nR/1K1p1n1b/2Q2B1p/1N3NQr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 c4 a5 Kc2 f5 g4 a4 b4 d3+ Kc3 h3 e4 h4 b6 h2 b7 a3 c5 f3 b5 a2 b6 h3 g5 f4 e5 f2 g6 f3 e6 Nc6 b8B Nh6 b7 Bd6 g7 Nd4 Qd2 Ra6 Bg2 f1Q Kb2 f2 Ne2 Ng4 Bc6 Nf3 Ng3 Qe2 Qc2 f1B Bh6 Qe5+ Kb3 Bg2 Rf1 h1Q Rf2 Qd4 Nf1 Bh2 Bg3 Rb6+ Ka3 Rh7 b8B Ba6 Bbd6 Bb5 Ba8 Qe5 Kb3 Qg1 Re2 Qgd4 Bf2 Bf4 Re4 Bg3 Nc3 Rh8 Rae1 a1Q Nb1 Rh7 Bf8 Bh2 g8Q Qh8 Qg5 Bb8 Bd6 Qde5 Qg7 Qad4 R1e3 h2 Qg5 Rg7 Rf4 Bh3 Ree4 Ne3 Rh4 Ng4 Rf4 Rg6 Rf7 Rf6 Qg7 Rf4 Rf6 Re4 Qg5 Re1 Ng3 Rh1 Nf1 Ne3 Qg3 Ng4 Qg1 Ba4+
bR1Q3b/b2p2Pb/B1BKN1Rn/8/Q1p1n3/P3pq2/Nr2B3/k1B1qqr1 w - - 0 1 illegal: No proof kernel
N1b1rk2/K1Pn4/qp1N4/1rb1q1nb/2Rrr3/1BQ1p1Np/1P1B2N1/1QR5 w - - 0 1 illegal: No possible last move, all moves rejected
nR1b1KB1/1p2R2r/1Q2P3/4PN1N/2k1rb1p/1nbbQ3/NpN3qB/1n4q1 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 dxc4 h5 e5 fxe5 g6 Rh4 gxh5 Rh1 h4 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 a4 c5 g4 f5 d4 h5 e6 b3 a5 c3 a6 h3 g5 c2 a7 b2 g6 c4 g7 c3 Na3 h2 Nh3 h4 Qe1 Qd6+ Kg5 f4 Kg6 f3 Kf7 f2 Bf4 c1B Nc2 Nf6 g8N Bd2 Ne7+ Kc4 d5 Ne4 Nf5 Nd7 Qc1 Rb8 a8Q Be7 Qa7 Qc5 Qb6 Bd8 Ra8 Rh7+ Kg8 Be1 Qe3 Nd2 Be5 Nb1 Nf4 Qd4 Nh5 Qe4 Rg1 h1Q Rg7 Qg1 Bh2 Qf3 Bh3 f1N Bg2 Nfd2 Re7 Nf6+ Kf8 Ne8 Bh3 Nc7 Bg4 Bd7 d6 Bb5 d7 Rc8 Rb8 Qfg2 Bf3 Na8 Be4 Bc7+ d8N Nb3 Bg3 Bf4 Bh2 Rc5 Nc6 Re5 N6b4 Ba6 Na1 c2 Na2 c1B Nc2 Bb5 Bc6 Ba6 Be8 Re4 Bf7 Bc3 Bg8 Bc7 Qf2 B1f4 e3 Rd4 e4 Bd8 e5 Re4 Qg3 Kd5 Qh3 Bd3 Qhe3 Kc4
1Q2QN2/1pRKQq2/2pQ1nnB/q2r2pr/Br2R3/b2P1P2/k2b1Nb1/5r2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 c6 a4 e6 h4 b3 d6 Kb4 f3 g3 d7 e3 h5 g2 a5 b2 h6 e2 a6 e1B a7 Qa5+ Bb5 Ne7 Kd6 e5 d8Q e4 h7 e3 Nh3 g1Q Nf4 e2 Ba4 Qg6+ Ne6 Nd7 Nc3 b1R Ne4 Nf6 Nf2 Qf7 d3 g6 Bh6 Bd2 Qe1 g5 Rh2 Rb8 a8Q Ng6+ Qe7 Bd7 Qc1 Rd8 Qb8 Rb3 Qa3+ Kc3 Qb4+ Kb2 Re1 Ka2 Rh4 Rb1 Re4 Rb2 Rh1 e1R Qd4 Rf1 Rh3 Rg8 h8Q Rb4 Rh2 Rg7 Qe5 Rh7 Qc5 Bg7 Qhe8 Bh8 Nf8 Bh3+ Q7d7 Bg2 Qce5 Nd5 Q5e7 Bb2 Rhh4 Ba3 Rhf4 Qg7 Rf7 Nf6 Ke6 Rh8 Qdc7 Rd5 Qcd6 Ng4 Kd7 Qg8 Bg7 Rh5 Bh6 Nf6+ Ke6 Rh2 Q7d8 Qg7 Rc7 Rh5 Qd8e7 Nh7 Kd7 Qf7 Kd8 Nf6 Kc8 Nh7 Kd7 Nf6+
2Q1nB2/P4bqq/q3r3/2R5/p1B1q1Rr/2bP1BQp/2pnK1B1/2N1N1kn w - - 0 1 illegal: No possible last move, all moves rejected
2nr1q2/5QRr/2Rnb2B/p4Qbp/1B2nN1k/1Qp1b2N/Pn4PQ/5bK1 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 gxh4 c6 d6 c5 d5 Bc4 dxc4 Kf1 Kf7 d4 Kf6 f4 a5 c7 e5 d5 b5 f5 h5 c6 b4 d6 e3 d7 Kg5 f6 c3 f7 e4 Qd2 b3 Rh2 h3 Na3 b2 Qd5+ Kh4 Nc2 b1B Nd4 e2+ Kf2 e1N Qf5 e3+ Kf1 Be7 f8B Nf6 Ne6 Nd3 Nf4 Ne8 Qf7 Bg5 Bb4 Rh7 Rh1 h2 Ngh3 Ba6 c8Q Nd6 c7 Nc6 Qb7 Na7 c8Q Qf8 d8Q Nb2+ Qb5 Bg6 Qcf5 Nac8 Rb1 e2+ Kf2 Rb8 Re1 h1N+ Kg1 Nf2 Qdc7 Nfe4 Qbc4 Ra8 Qb3 Rb8 Rd1 e1B Rd4 Bf1 Rc4 Bd2 Rc6 Nd3 Rb2 Be3+ Rf2 Bd2 Rf3 Nb2 Rg3 Ra8 Qf7d7 Be8 Qdf7 Bd7 Qb8 Be6 Qbc7 Be7 Rg7 Bg5 Nd5 Nb7 Qh2 Nbd6 Ndf4 Be3+ Kh1 Bd2 Qfd5 Ra7 Kg1 Rd7 Qdf5 Be7 Nd3 Bf4 Be3 Rd8 Bd2 Bg3 Bh6 Bg5 Ndf4 Be1 Kh1 Bd2 Kg1 Be3+
5r1n/kB1Q4/2b1pRn1/Kb1bB3/1R3qN1/pB2n1NP/P4rpQ/1B1nb3 w - - 0 1 legal: proof: f4 c5 e4 h5 g4 hxg4 b4 d6 e5 dxe5 bxc5 exf4 Ba6 f3 Bd3 Nd7 Bf1 Nb8 d4 Kd7 Kd2 Kc6 Kc3 f5 Kb4 b5 c4 Kb7 d5 a5+ Kb3 g5 c6+ Ka7 h3 f4 d6 f2 c5 g3 c7 f3 d7 b4 Ka4 b3 c6 e6 Rh2 g4 Bd2 b2 Bb5 f1B Qe1 f2 Qe5 g2 Qe1 g3 Nc3 b1B Qe5 Ne7 Qd6 Be4 Nd1 Bb7 c8B Qc7 d8Q Ng6 Rb1 Nd7 Ne2 g1N Rb3 Nde5 Bc4 Bd5 Q8d7 Nf7 Bf4 g2 Ne3 Qb8 Ng3 Ne2 c7 Bbc6+ Rb5 Rh5 Ba6 Nfh8 Ng4 Rf5 c8B+ Qc7 Qe5 Bb4 Bcb7 Be1 Rh1 Raf8 Bb3 R5f7 Qed6 Rf5 Be5 Nc3+ Ka3 a4 Kb4 Be2 Rf1 a3 Rb6 Qb8 Ka5 Nd1+ Rb4 Rf4 Bb5 R4f6 B5a4 Beb5 Bc2 R6f7 Bab3 Rf5 Bb1 R5f6 Rh1 f1N Q6c7 Nfe3 Rf1 Rf2 Qcd6 Re2 Rf7 Rf2 Rf6 Bdc4 Qd3 Qd6 Qf1 Qd2 Qh1 B4d5 Qg1 Qd4 Qh2 Qf4
Rrr1Kn2/R2B1np1/bBPr2N1/b2p1pk1/b5b1/1QQ2Rr1/3N2PR/3q4 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 axb5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kd2 Ke7 Kd3 Kf6 Ke4 h5 Kd5 a5 c4 h4 e4 d3 b4 a4 e5+ Kg5 c5 h3 b6 d2 b7 a3 c6 a2 e6 f3 e7 f2 e8Q Nh6 b5 Bb4 b6 Ba5 Bc4 f1B Ne2 Qg1 Kd6 h2 Ke7 d5 Ba6 f5 Nf4 Nf7 Ng6 Nd7 b8R Be2 b7 Nf8 Qb3 Qd1 Bb2 Rh6 Bd4 Bg4 Bb6 Nd8 Rf1 h1R Rf3 Rg1 Qf7 Rgh1 Ke8 R1h3 Qc7 Rg3 Qe5 Rh4 Qec3 Rh6 Ne7 Rd6 Ng6 Be6 Rc8 Rb8 Rc7 Bc8 Re7 Ra8 b8R Bb7 Re1 Bc8 Rb7 Rb8 Ra7 Bb7 Rh1 Bc8 Bb5 Ba6 Rh6 Qf1 Bd3 d1B Nd2 Bc2 Rh2 Qd1 Qb5 Ba4 Qbb3 Bb7 Ba6 Bc8 Rc1 a1R Bb7 Ra3 Ra1 Ra2 Ba8 Ba6 Bb7 Rb2 Bc8 Rb1 Bd7 Rc8 Qbc2 Rb5 Q2b3 Rb4 Bc5 Rb7 Bb6 Rbb8 Rb1 B6b5 Qcb2 Bc3 Ra8 Bc4 Q3a2 Bab5 Qab3 Bd3 Rba1 Bc2 R1a7 Ba5 Qb4 Ba6 Q4c3 Ba4 Qbb3 Nf7+
2KRb3/5p2/q2pn1b1/2Nr1RN1/1b1b1r1P/2P3RR/pk1BQ2Q/1r2nBr1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 e4 g5 h4 a5 b4 g3 b6 g4 Kb5 g2 b7 d3 Na3 Kd4 e5 Kc3 e6 a4 e7 f3 e8R g3 Rh2 f2 Re2 d2 Re8 Na6 b8Q Nc7+ Kb6 Nh6 b5 Ng4 Nf3 g1R Ng5 g2 Ne6 Ne3 Qe1 Rh5 Bd3 f1R Rh3 Bb4 Nc4 a3 Ng5 a2 Nb2 Rf4 Qe2 d1B Re5 d6 Rf5 Be6 Kb7 Bd7 b6 Ne6 Ba6 Qh8 Nd3 Be8 Nc5 Qh7 Bd2+ Kb2 c3 Nc2 Rc1 Ne1 Kc8 Bc2 b7 Qg6 Bc4 Ra6 Qa8 Rb6 b8R Qf6 Qae4 Qd4 Q4e3 Qd3 Qg3 Rb5 Qh2 Rb7 Bd5 Qa6 Bc4 Bd3 Rf6 Bg6 Rf5 Rh1 Rd1 g1B Ra8 Bd4 Ra1 Nc2 Rg1 Ne1 Rgg3 Rg1 Qeg2 Nc2 Bf1 Ne1 Qe2 Bh8 Nge4 Ba5 Rf6 Ka3 Ra7 Rd5 Rf5 Bd4 Ng5 Rb1+ Rb7 Qa7 Rd7 Kb2 Rd8 Bb4 Na6 Qb6 Nc5 Qa6+
1K1bn3/n2Pr1Q1/3q1Q2/P1B5/3N2n1/1BN3rb/pp1k1N1p/R2NrrnR w - - 0 1 illegal: No proof kernel
5K2/1R1pp1p1/8/1rknB1P1/2rrQ3/1Pb1RBn1/NQ2q1N1/Q1rn1Qnb w - - 0 1 illegal: No proof kernel forced: wxDB
5r2/1p2r1Q1/1bbb2qK/1n1N2p1/PNk1pn2/n1BN1BQ1/2PR2Rn/3Nb3 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 Ke3 Ke6 Kf4 d5 Kg5 b3 h4 d4 a4 Kd5 f4 e3 f5 e5+ f6 b2 h5 g6 c6 g3 h6 e2 h7 e1B c7 e4 Ne2 g2 Rh2 g1B Qd3 Ne7 f7 Qd6 Bg2 Bd7 c8N Nbc6 Qg3 d3 Nf4+ Kc4 Nc3 b1N Bd2 Na7 Bf3 Nd5 Ne7 Na3 Nd1 N7b5 Rg2 Re8 Bc3 d2 Nc6 Re7 Nb4 Bb6 Nfd3 Nf4 Rb1 Rg8 h8Q Bc6 Qg7 Qe6 Rb3 Qf5+ Kh6 g5 N1f2 d1N Rb1 Ne3 Rd1 Re5 Rd2 Bd6 f8N Nf1 Nd1 Nh2 Ng6 Rf8 Ne7 Qf7 Ned5 Re7 Qe5 Qf5 Qg7 Qg6+
kNq2r1Q/7B/2bp2q1/2pnp1bB/2P1br1Q/1Q1RK2b/2R1P3/3br1QN w - - 1 2 legal: proof: f4 a5 g4 c5 b4 axb4 d4 g5 d5 Nc6 dxc6 h6 Bb2 Qa5 Bf6 gxf4 g5 Qb6 g6 Qd8 Bg5 hxg5 Kd2 b5 h4 e5 a4 f5 c4 g4 c7 b3 a5 f3 h5 d6 g7 Kd7 h6 Kc6 a6 f2 h7 b4 a7 Kb7 Qc2 b2 Na3 b1B Bh3 f1R Kd3 g3 Nb5 b3 Rh2 b2 Nd4 g2 Ke3 Re1 Ra2 Nf6 g8B Bd7 Bf7 Bc6 Bh5 Be7 Qc3 Rb8 c8Q+ Ka8 Qb3 Rf8 h8Q Bbe4 Qc7 b1B Rc2 Qd7 Qd8 Qc8 B3g4 Rb7 Nh3 g1Q+ Nf2 Qg3+ Bf3 Qg6 Nh1 Rc7 Rh3 f4+ Kf2 Rb7 Bg2 f3 Ke3 f2 Rf3 Bd7 Nc6 f1B Nb8 Bdc6 Bh3 Rd7 Bf5 Bh3 Qg7 Qg2 Bh7 Nd5+ Kd2 Qg1 Rd3 Qg6 Qh8 Bh4 Qg5 Rf4 Qg1 Bg5 Qf6 Rf7 Qe7 Nb4 Ke3 Rf8 Qd8 Bh6 Qh4 Bg5 Rb2 Bc2 Ra2 Bd1 Rc2 Kb7 a8Q+ Kb6 Qa5+ Kb7 Qd8 Ka7 Qf6 Ka8 Qh8 Nd5+
bR3bR1/kp1NpPrb/3R2b1/Bb4Rp/3rN3/5q2/Qb2Bb1P/K2n2Q1 w - - 0 1 illegal: Other
2N2rkb/2Q3q1/2Kn3Q/2R2pRb/BqqQ1P1B/n2b3q/1QppNP2/3n4 w - - 0 1 illegal: No proof kernel
6BB/rR2P1p1/3R1q1p/bK1B4/5pk1/Q4q1n/NrNq1Pb1/Qb1r2Bq w - - 0 1 illegal: No proof kernel
qbk1B1n1/1Nqp4/2NPB1q1/3n2b1/p1Qnb3/2QBr1K1/P5pB/3R2Rq w - - 1 2 legal: proof: h4 e5 f4 exf4 c4 b5 g3 bxc4 Qc2 g5 Qb3 a5 Qc2 Ra6 Qd1 Rg6 Qc2 g4 Qd1 Rg5 hxg5 fxg3 b4 h5 e4 f5 d4 c5 e5 g2 Kf2 h4 e6 f4 e7 h3 b5 g3+ Kf3 c3 b6 c4 b7 c2 d5 c3 g6 a4 g7 h2 Ba3 c1Q Ba6 c2 Bb5 Rh3 Nc3 Nc6 b8Q Bb7 Nge2 g1Q Qe5 Qa8 Bd6 Nd4+ Kg4 g2 Qf1 f3 Bd3 f2 Ne4 Re3 Nc5 Qb1 Qg3 c1B Bf4 Bc6 Nb7 Bd2 Qc1 f1N Qc4 Qb6 Kh3 Qc7 Rd1 Qf2 Bd6 Qf7 Rg1 Qg6 Qf3 h1Q+ Bh2 Bb4 Qg3 Bd6 Kh4 Be5 Qe1 Bf4 Qec3 Bg5+ Kg4 Kf7 e8B+ Ke7 Nd6 Kd8 Nb7+ Kc8 d6 Be4 Qf7 Bfe7 Qfc4 Nf3 Nd4 Bd8 Nc6 Nd4 Bg3 Re2 Bh2 Ne3+ Kg3 Nd5 Qe1 Qcb8 Qeb4 Bc7 Qbc3 Qba7 Qa3 Bb8 Qac3 Nh6 g8B Re3+ Kf2 Qa5 Bgf7 Qc7 Be6 Bf3 Kg3 Ng8 Kh3 Be4+ Kg4 Bf3+ Kg3 Be4+
2r5/rqk1pN1p/2P3QR/1n1Qb1Qr/2r1b1qP/R1bNpQB1/8/1q3BK1 w - - 0 1 legal: proof: d4 f5 b4 a5 e4 axb4 g4 fxe4 f4 Nc6 f5 Ne5 d5 Ng6 d6 Nh4 f6 Nf5 gxf5 cxd6 Bb5 d5 Bf1 d4 Kf2 g5 a4 b5 c4 d5 h4 Kd7 f7 d3 a5 e3+ Kg2 g4 f6 b3 a6 b4 c5 g3 c6+ Kc7 a7 d2 Qg4 d1Q Qf5 b2 Qe4 d4 Ra3 d3 Ra2 b3 Qe6 d2 Nc3 b1Q Nce2 b2 Nh3 Bg7 f8Q Qd7 f7 Bc3 Ra3 Nh6 Qg8 Nf5 f8Q Nd6 Qgg6 Nb5 Kg1 g2 Nef4 Qg4 Nd3 d1R Bd2 Rc1 Be1 Ba6 Qf3 Rhc8 Ng5 Rc2 Rh3 Rc1 Kh2 g1B+ Kh1 Bh2 Rg3 Rc2 Nf7 Rc1 Rg2 Bhe5 Bg3 Nd6 Rc2 Bh8 Ng5 Kd8 Nc5 Be1 Qee4 Qa1 Rd2 b1R Qgf7 Rb5 Qa2 Qb1 Kg1 Qb7 Nf7+ Kc7 Rd5 Ra5 Rh5 Bd3 Qg6 Be4 Nd3 Bd2 Qae6 Rc4 Rh6 Rg5 Qef5 Rh5 Qfe6 Bdc3 Qe5 Rab8 a8Q Bg7 Qa7 Ra8 Qad4 Ra7 Qeg5 Be5 Qd5 Nb5
bN3b1R/1p1q2n1/pb3P2/4RQR1/KPpkBq2/Q4n2/2r2N1q/RqBn4 w - - 0 1 illegal: Other
BRQ1R3/1r3pk1/Q1q1pNn1/1r1PN3/2nK1n1n/1B2BPp1/B2nn2b/2r5 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 h5 e4 hxg4 Bb2 d5 Bh3 d3 Bf1 d4 Ba3 Be6 Bc1 Bd5 exd5 Rh4 Qf3 Rh3 Qd1 Rh8 Kd2 g5 h4 b5 c4 e6 a4 g3 a5 b3 c5 b2 h5 b4 h6 b3 c6 g4 h7 g2 a6 Qd7 c7 Qc6 c8B Nh6 f3 Nd7 a7 Bd6 Rh2 Kf8 Rh4 Rb8 a8B Bh2 Qe1 g3 Qe4 Rb7 Ne2 g1N Ra2 Ne5 Nf4 Nf5 Ng6+ Kg7 Nc3 b1R Bd7 b2 Qe2 Nh3 Ne4 Nf4 Nf6 Rc8 Ra7 Rb5 Rb7 Rc7 Rh5 Nh4 Rb8 Rcb7 Be8 Nd7 Ne5 Nf8 Qd1 Ra1 Qa4 N8g6 Qa6 Rb1 Be2 Ra1 Bd1 Rb1 Bd7 Ra1 Bb3 b1N+ Ke1 Nd2 Ba2 Nb1 Be3 d2+ Kf1 d1N Ke1 d3 Re8 Nbc3 Kd2 Nce2 Rg5 Nb2 Rg4 Nh5 Rb4 Nhf4 Rb3 Nc1 Rb4 Nc4+ Kc3 d2 Kd4 d1N Rb2 Nc3 Rb3 Kh6 Rb1 Ne4 h8Q+ Kg5 Qf8 Ned2 Qc5 Kh6 Rb3 Qd6 Qc8 Kg7 Rb2 Rb3 Ba4 R3b5 B4b3 Qc6 Ned7 Nf1 Ne5 Nce2+ Ke4 Rc1 Rb1 Ng1 Kd4 Nfd2 Qa4 Rc7 Qaa6 Ra5 Bc2 Ra7 Rb8 Rb5 Bd1 Rab7 Bdb3 Nge2#
3N1k2/1n3N2/Q2Rq1q1/4QQ2/B1qpPp1R/q1q3Qr/qBpK1P2/b1r1n3 w - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 Rh3 a5 Rh1 axb4 c4 gxh4 Qb3 b5 Qc2 b3 Qd1 b4 Bb2 Ba6 Bc1 Bb5 cxb5 Ra3 Rh3 Ra6 Rh1 Ra8 a4 f5 g4 d5 g5 h5 b6 c5 b7 d3 g6 c4 a5 b2 a6 b3 e3 d2+ Ke2 h3 a7 h4 g7 h2 Ra2 c3 Ra4 h3 Ra5 f4 Ra6 Nd7 b8Q Nc5 Rc6 Qc8 Nf3 Ne7 g8Q Ng6 Ra6 Nb7 Kd3 Ne5+ Ke2 Nd3 Qh7 Ne1 Qbc7 Bg7 Nd4 Kf8 Qe5 Qe6 Rg1 h1Q Qh4 h2 Na3 b1Q Rg4 b2 Qg3 Rh3 Qc2 Qe4 Nab5 h1Q Nc6 Rc8 a8Q Qa2 Nd8 b1Q Rd6 Qec4+ Qd3 Qbb3 Rh4 Qba3 Bb2 Qhe4 Qa6 Q4g6 Kd1 Rc5 Qdf5+ Bf6 e4 Rc8 Bd3 Rc7 Ke2 d1Q+ Kf1 Qda1 Ke2 c2 Kd2 Rd7 Na7 Rh7 Nac6 Rh1 Nf7 Bg7 Rg4 R7h3 Rh4 Bf6 Ncd8 Bh8 Bc1 Qad4 Bb2 Qdc3+ Kc1 Q4b4 Bb5 Qbc4 Bd7 Q3d4 Ba4 Nd3+ Kd2 Rc1 Ba1 Qdb2 Qc3 Ne1 Qcf3 Bd4 Qe5 Qbb3 Qfh5 Qbb4+ Bc3 Qbb2 Qhf5 Qbb3 Bb4 Ba1 Bc3 d4 Bb2 Qbc3+
3B1R2/2RnqNk1/pr2R3/2R1q1nn/P4N2/1n1nQK2/2P1p1Bp/nr4bQ w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 c5 Ke1 cxb4 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kf7 f4 b5 a4 e5 d4 h5 f5 e3 d5 a6 d6 b3 f6 b4 d7 b2 g5 h4 Qd3 e4 Qd6 h3 Ra2 b3 Qb6 h2 Qb7 Rh6 Qb6 Bc5 Ra3 Qe7 d8R Nd7 Ra2 Rb8 Na3 b1N Ra1 b2 Nb5 Nd2 Ra3 b1N Rc3 Nb3 Rc8 N1d2 Rc7 Na1 Nh3 g1Q Bg2 Ndb3 g6+ Kf8 f7 Kg7 f8R Ngf6 Qb7 Nh5 Nd6 Ba7 R3c5 Qe5 Bf3 g2 Nf7 Qe7 Ba3 Qc1 Rf1 Qb2 Re1 Qbe5 Nf4 Bb6 Bb4 Ba7 Ba5 g1N+ Kd1 Nh3 Ke2 Ng5 Bg2 Nd2 Qd5 Rb1 Bb6 Ndb3 Qa8 Kf6 g7 Rg6 g8Q Rh6 Kf1 e2+ Kf2 Rg6 Qh7 Rh6 Qf5+ Kg7 Qh3 Rf6 Qe3 Rc6 Rd1 e1N Rd6 Nd3+ Ke2 Qe8 Re6 Qe7 Rb7 Rd6 Bd8 Rc6 Rc7 Rb6 Qc1 e3 Qe4 Nh7 Kf3 e2 Qh1 Rb5 Rd5 Bg1 Qe3 Rb6 Rdc5 Ng5+
1QnQ1R1b/n7/b1NR1np1/2p3r1/1nB2Kr1/N2PNpP1/2nk3B/N1n4b w - - 0 1 illegal: No possible last move, all moves rejected
3qB2b/P2Nq3/1Nq3pq/3pR3/3k1rRr/3Pn2K/nRrB1rpR/1Q2Q3 w - - 0 1 illegal: No possible last move, all moves rejected
bqN1n3/3P3R/p5NB/q3b1p1/2bkp1B1/qb3QB1/BRQ2qPr/2K2n2 w - - 0 1 illegal: No proof kernel
5n2/bpk1B1NP/2bq3K/2Q2r1n/1p2rpbr/p1RB4/1BRPNQ2/5Bn1 w - - 0 1 illegal: No proof kernel
4r1q1/2BQ1RQ1/1nBb4/3bqp1Q/2N4p/pn1N1Pp1/1Q1KP1q1/2rR2bk w - - 0 1 illegal: No proof kernel
1b2Q3/Nq3b2/2n1K1p1/B1p2B2/P1rkpqnQ/4n1rr/6pP/RQQ3NR w - - 0 1 illegal: No possible last move, all moves rejected
1Q4n1/b1R2rn1/2rn2p1/Ppk1N1pq/1RN5/B2BK1N1/pP1q1Q2/N4b1r w - - 0 1 illegal: No proof kernel
q3Q3/3n2Rr/B3pqNR/p6Q/r1b5/KP1BpbnN/1p2Pbq1/4BB1k w - - 0 1 illegal: No proof kernel
1r1B4/K3q1b1/1QPp1k1N/3B4/pb3pnn/3Rr1nB/1p1BNP2/r2R2Qq w - - 0 1 legal: proof: d4 e5 b4 exd4 g4 c5 Bb2 cxb4 Bc1 h5 a4 hxg4 Qd2 b5 Ra2 b3 Ra1 b4 Qd3 Ba6 Qd1 Bb5 axb5 Qg5 Nc3 Qh4 Nb1 Qd8 Kd2 Ke7 Kd3 a5 Kc4 g5 Kc5 f5 e4 d3 c4 d2 h4 a4 e5 b2 e6 b3 h5 g3 b6 g2 b7 g4 h6 g3 h7 Nc6 b8B Kf6+ e7 Ne5 Nh3 g1B Ng5 g2 Nc3 b1Q Ne2 b2 Nf7 Ng4 Bc7 Bh2 Kb6 g1N e8B Bg7 c5 Qe7 c6 Bd6 Rh3 f4 Bd8 Rb8+ Ka7 N8h6 Rd3 Nf5 Bh3 Ng3 Nh6 Bb4 Bf7 Nf3 Bd5 Re8 h8Q Nh4 Qg1 d1R Bd2 Qc1 Qh7 Re1 Qe4 Rf1 Qe3 d6+ Ka6 Re1 Qb6 Qd1 Nd4 Qf3 Rd1 Re3 Ne2 Qh1 Rd4 Ra3 Rd3 Ra2 Bc7 Ra1 Ka7 Qf8 Bd8+ Re7+ Bc7 Re3 Bd8+ Qe7+
3q1bBr/1N2p3/b5P1/1n1K2RN/p3QB2/np1B4/1R1b1pPr/Qq1krB2 w - - 0 1 illegal: No proof kernel
3k4/1r1Pp2B/Qb2p2q/B1qRp1b1/1Nn1p1rr/nN1NP1nQ/1NR4K/8 w - - 0 1 illegal: Other
8/1p1B3Q/2Q2pNr/R1nKB2n/b1NPqpB1/pr5n/1P2qk2/1r1b2RB w - - 0 1 illegal: No proof kernel
rK2B2k/1pnbNq1r/1P3pQB/b2R2QN/2qP4/Nb1pn2p/8/qN2R3 w - - 0 1 illegal: No proof kernel
3Q4/qp3p1k/RP1npp2/Rq1b4/r3b2q/R2nn1Nr/K3NP2/B3RQ1B w - - 0 1 illegal: No proof kernel
1Kbq2Q1/pp3r2/q3nP1R/1QP1rp1N/2N1R1qB/Q1Q5/4p3/1n1b1Bbk w - - 0 1 illegal: No proof kernel
Nr5r/1q1Q1N1b/1rB2B2/K1k2n2/1nr2p1p/p4RNP/1b1p1R1P/2Nr2Q1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 f5 bxa4 f6 exf6 Nh3 f5 Ng1 Qh4+ Kd2 Qg4 Ke1 Qh3 gxh3 f4 Kd2 Ke7 e4 Kd6 c4 h5 b4 a5 b5 g5 b6 f5 b7 h4 e5+ Kc5 e6 d5 e7 a3 e8Q f3 Qda4 d3 Kc3 f2 Qe1 d2 Qad1 f4 Qe6 a4 Bg2 f1R Ra2 g4 Ne2 g3 Bb2 Na6 b8N Nh6 Nc1 Nb4 Nc6 Bg7+ Ne5 Rb8 Qd7 Nf5 Qe1 d1R Nd2 Rg1 Nf1 Ba6 Bf3 g2 Ng3 Rd4 Qf2 Rd1 Rf1 g1Q Nf7 Qg2 Qg1 Rb6 Rf2 Bb5 Ra1 a2 Rb1 a3 Ba1 Rbb8 Rb3 Bf6 Bb2 a1R Be4 Rb1 Bf3 Kb6 c5+ Ka5 c6 Kb6 c7 Kc5 c8N Bd3 Nb6 Qh1 Ba1 Be5 Rbb2 Rc4+ Kb3 d4 Ka4 Be4 Na8 d3 Ka5 d2 Rb3 Bb2 Re3 Bd3 Bc6 Qe4 Bb5 Qb7 Ref3 Nd6 Ba4 Bh7 Bc6 Nf5 Nce2 Bc1 Bf6 Bb2 Nc1 Re1 Bd5 Re6 Be4 Rb6 Bc6 Ra1 Nce2 Rf1 Nc1 Rd1
1n5N/1RpR1Pn1/qPQN1r2/n1B5/2nb3p/QBpk4/K1brp3/5RRn w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 d4 Kg6 Kd2 a5 Kc3 h5 f4 e5 b4 e3 Kb2 e2 b6 e1N g5 Kf5 b7 Ke4 b5 a4 b6 h3 d5 a3+ Ka2 h2 f5 c3 g6 h4 g7 Nc6 b8R Nf6 g8Q Ne8 f6 Bf5 f7 Bc5 d6 Qc8 d7 Qa6 d8R Ng7 Qe8 Nd3 Rb7 Nb8 Ne2 Nb2 Rd7 Rh6 Be3 Nc4 Qa4 Rf6 Rg1 h1N Nf4 Bd4 Ng6 Ra7 Bg2+ Kd3 Nd2 e4 Nh8 Bg6 Bf2 e3 Raf1 e2 Ne4 Bh7 Nd6 Bf5 Kb3 a2 Bd5 a1N+ Ka2 Nb3 Qa3 Nba5 Qe4+ Kd2 Qg2 Bc2 Be6 Kd3 Qc6 Be5 Bc5 Bd4 Bd5 Ra8 Qca4 Nbc6 Be6 Rd8 Bd5 Nb8 Qc6 Ne5 Bb3 Nec4 Qb4 Ne6 Qba4 Ng7 Qa3 Kd2 Re7 Be5 Nb5 Rd3 Rd7 Bd4 Nd6 Ke3 Rg4 Rd2 Rgg1 Kd3
kBr1n1KR/2nB3p/2Nb2pq/rP2P2R/3RR2Q/n4pbN/3p4/Q4b1b w - - 0 1 illegal: No proof kernel
3BQn2/qR5p/1Qbp1PB1/1N5P/kbN4p/b3nrR1/1p3rRr/2r1K2R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 h5 g6 Qg4 g5 Qh4 gxh4 a4 b5 c4 e5 g4 d3 f4 e4 c5 d2+ Kd1 e3 f6 b3 f5 b2 a5 b4 c6 b3 a6 Bb7 a7 Qb6 c7 Nh6 g5 Ba3 g6 d6 c8R+ Kd7 g7 Rf8 g8R Bc6 f7 Ng4 Nc3 b1R Nf3 b2 Nb5 Qa6 Ke2 d1R Nd2 Qb7 Bg2 Rf1 Be4 Rf2+ Ke1 e2 Nc4 Ne3 Rg3 Qa6 Rhg1 Rh2 R1g2 Qa4 Kd2 e1B+ Ke2 Beb4 Rc7+ Kd8 Bd2 Nd7 Rb7 Rc8 a8Q Rf1 Qa6 Rf2+ Ke1 Rc7 Qb6 Qa7 Rb1 Nd1 Qc5 Bc3 Nb6 Ne3 Bc2 Be4 Rd1 Re8 f8Q Bd5 Qg8 Rf8 Bb1 Ba5 Qd4 Rc2 Nc4 Bc6 Qf7 Kc8 Bb4 Rc3 Qe8+ Bd8 Rc1 Rf6 Ba5 Nf8 Qee5 Bb6 Be4 Bbc5 Bd8 Bcb4 Qe8 Rf4 Ke2 Rf7 Rg1 Rf2+ Ke1 Rf6 Rbg7 Rf7 Bb1 Kb7 Rh1 Ka6 Qc5 Rf6 Rb7 Rf7 Nb6 Ka5 Nc4+ Ka4 Qb6 Rg7 Be4 Rg5 f6 Rgf5 Bd3 R5f3 Bg6 Rc1#
1b5n/3p1N2/QB3p1q/Rrrr1R1b/NP3NK1/1n1rpPp1/4Q1Nk/b6B w - - 0 1 legal: proof: e4 b5 d4 h5 g4 hxg4 a4 c6 d5 cxd5 axb5 dxe4 Qd3 e3 Qd2 Rh5 Qd1 Rh8 Ke2 a5 b4 e5 c4 Ke7 h4 Kf6 b6 Kf5 f3 Kf4 c5 Kg3 h5 g5 c6 e4 c7 a4 b7 f6 h6 a3 h7 a2 Ba3 Nh6 Rh5 Na6 b8Q Nf7 Bh3 Nc5 Nc3 Ra5 Qc1 Bd6 Nb1 Bb7 c8N Nb3 Nc3 Rb5 Nd5 Qf8 Qa8 Bb8 Bg2 Qh6 Nh3 Kh2 Qf1 g3 Bb2 g4 Bh1 g2 Ndf4 g1R Rf5 g3 Nb6 Rc8 h8N Rcc5 Ng2 Rd5 Qf2 Rc1 Na4 Rcc5 Qa6 Rd3 Nhf4 Bd5 Rd1 a1B Bd4 Bc4 Kf1 Rd5 Bb6 e2+ Ke1 Rdc5 Rd2 Rdd5 Ra2 Bd3 Qe3 Ne5 Qd2 Ng6 Nf7 Nh8 Qc2 Nc1 Kd2 e1R Ra3 Rd1+ Ke3 Nb3 Qe2 Bb1 Nc3 Rd6 Ra5 R1d5 Na4 Bd3 Rg5 Bb1 Nd3 Bc2 Kf4 e3 Kg4 Bb1 Ndf4 Bg6 Re5 Rd3 Rg5 R6d5 Rf5 Bh5+
3r2bK/2pb1R1R/B5R1/pR2N1Q1/r1nkr2p/3Bq1P1/1pP4Q/4Nnbr w - - 0 1 illegal: No proof kernel
3n2NR/K1p1rB1p/8/3bQqk1/N2rQpPr/1b3Pb1/N2p1B1n/r4NR1 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 exd4 a4 g5 axb5 gxh4 Rh3 d5 Rh1 dxc4 Kd2 Ke7 g4 Kf6 e4 a5 b4 h3 b6 d3 Kc3 a4 e5+ Kg6 b5 f5 e6 h2 b7 a3 f3 a2 e7 Be6 Kb4 c3 b6 c2 Kb5 Nc6 b8N Nf6 e8N Bd5 b7 Bd6 Na6 Nh5 b8Q Bg3 Qb7 f4 Qe1 Qf6 Ne2 Rd8 Be3 c1R Nd2 Qf5 Rg1 h1B Bf2 Bg2 Nb4 Kg5 Nf6 Rhe8 Ka6 Re7 Ng8 Rd1 Rb1 a1R+ Na2 Rd6 Qb4 Nd8+ Ka7 Rh6 Nc3 Bh3 Be2 Bf1 Na4 Bb3 Qe4 Bd5 Nc4 Rd2 Bd1 Be2 Bb3 Bd1 Ne3 Bc2 Bc4 Bb3 Qe5 Bh2 Nc2 Nf7 Na3 Bc6 Rd1 Bb7 Nc2 Ng3 Nf6 Nf1 Q1e4 Bg3 Ne3 Nh2 Nf1 Rh4 Be6 B7d5 Rb1 Bd1 Rb8 B1b3 Rh8 Nd8 Bf7 Rc2 Nb2 d2 Ng8 Rc4 Na4 Rd4
2R3NB/1p1QbNn1/p7/k2PQ3/brRn4/p1r1B3/rPbp4/1KB2qbB w - - 0 1 illegal: No proof kernel
rnB2b2/P2r1R1R/NpQQ1p2/2nnp1R1/4b2B/1Pb1K2k/1q3Rp1/3N2b1 w - - 0 1 illegal: No proof kernel
6Rb/NRqb2QQ/3B1pPN/n4Kn1/1r2rpNN/6pp/3bb1qP/5Bk1 w - - 0 1 illegal: No proof kernel
6q1/QRB1r3/3pn1r1/q2BpRN1/rQrb1p1P/1pP4B/5K2/1b1k1nBN w - - 0 1 illegal: No proof kernel
1r2n2q/2B1p2p/b2bP1R1/1R1n1r2/1q1pP1Q1/k5q1/1N1Qp3/NQKqB2Q w - - 0 1 illegal: No proof kernel
2r1Q2r/Bnkp4/Kp5n/7p/2q1pNn1/b1R1BPqn/bPQ1NB2/1B3R2 w - - 0 1 illegal: No proof kernel
2qn4/1qR2rkr/K2p3p/1nR1Nr2/1PNPQ3/N2b3p/1Bn1Q1Np/3Bq3 w - - 0 1 illegal: No possible last move, all moves rejected
8/2Kppr2/q2PP1N1/BqbR3p/r1NNq3/2p1BR2/3nqq1k/2Q1Qb1N w - - 0 2 legal: proof: c4 b5 b4 g5 h4 gxh4 Nf3 a5 Na3 axb4 Nb1 b3 Ng1 b4 e4 f5 e5 Nc6 Bd3 Na7 Be4 Nb5 cxb5 fxe4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 d4+ e3 a4 h5 g4 h3 d5 b2 b6 c6 g5 b3 g6 h2 d6 Rb8 b7 Nf6 a5 Rh6 g7 Ne8 g8N Bg7 a6 Nf6 e6 Rh8 a7 Rh7 a8Q Qf8 Kb6 c5 Kc7 c4 Nd2 b1Q Ra3 e2 Ngf3 e1Q Nh6 b2 Nd4 Qc2 Ng4 b1Q Qa5 Ra8 b8B Qca2 f3 Kg3 f4+ Qd3 f5 Ba6 Nf2 Ne4 f6 Qe2 f7 Qb2 Rf1 Qb5 Nh1+ Kh3 Qe1 c3 Nc4 Nd2 Rf3+ Kg2 Ra1 Bh6 Qb4 Be3 Ra5 Bf2 Qb1 Bg1 Nc6 Bc5 Nd4 Qde4 Ba7 Rg7 Bb6 Q4d3 Ng3 h1Q Qa1 Qh4 Nh1 Kh2 Qb2 Qhf2 Qa1 Qg8 f8N Rf7 Ng6 Qg7 Qb2 Qge5 Qc2 Q5e4 Qb2 Nb1 Be3 Nd2 Qbc1 Bb7 Ra2 Ra4 Ba5 Bc6 Rb2 Qa6 Rb8 Bb5 Rf8 Rh7 R8f5 Rf7 Rd5 Qb1 Nce5 Bd3 Nc4 Qbb5 Nc2 Qd1 Nd4 Bf1 Rff5 Qdg4 Rf6 Qd1 Rf3 Qde2
1k1N4/1p1qn1qQ/b1p5/Bbb1p2N/N3PB2/n1Rpr1b1/1P3K1b/1R2N1Q1 w - - 0 2 illegal: No possible last move, all moves rejected
3k1n2/1P1p4/Q2b1Nnr/p1Q5/nK3QpR/2pqN1B1/1Q1n2P1/1R2qBnr w - - 0 1 illegal: No possible last move, all moves rejected
1q1BQ2b/2K1RrB1/N1b2pp1/2qp1N1p/1q3Pq1/n6B/k2rq1PB/2R1Q3 w - - 0 2 legal: proof: e4 c5 d4 b5 h4 Qc7 a4 Qh2 e5 bxa4 Qf3 Nc6 Qg4 Na5 Qd1 Nc4 h5 d5 h6 Nd6 exd6 cxd4 Nh3 Nxh6 Ng1 Ng8 Kd2 Kd7 Kd3 Kc6 c4 Kc5 b3 Kb4 d7 a5 d8B e5 c5 h5 c6 e4+ Ke2 e3 Kf3 g6 c7 d3 Be2 d2 Nc3 a3 Na4 a2 Qe1 f6 Bb2 Bb7 c8Q Bc6 Rc1 a1Q Bc3+ Ka3 b4 d1Q b5 Rh7 b6 Qb1 b7 Nh6 b8B Ng4 Bb2+ Ka2 Nc5 a4 Ba3 Bg7 Na6 Bh8 Bf8 a3 Bg7 Qb4 Qe6 Qdd4 Qe8 Qdc5 Bb5 Qh4 Bh2 e2 Bd3 Ne3 Bf5 Nc2 Bh3 Nd4+ Ke3 Qg4 f4 Nc2+ Kd3 Rc8 Nf3 Rc7 Qd1 e1Q Nh4 Qb8 Qde2 Qeb4 Rhe1 Re7 Qd2 Re2 Nf5 Rf2 Re7 Re2 Bh6 Rf7 Bf8 Kb3 Qd1 a2 Bg7 a1Q Qe1 Rf2 Qe3 Na3 Qe1 Qca5 Ke3 Ka2 Kd3 Qab2 Ke3 Q4b7 Kd3 Qbe2+ Kd4 Qac7 Kc5 Rf1 Qf2 Rd1 Qe1 Rd2 Qf1 Q8a8 Qe1 Qa5+ Kd6 Qbb4+ Nc5 Qab5 Kc7 Q5c4 Na6 Qc2 Nb8 Qcc5 Na6 Qab8+
3KB3/2q1QBr1/3R1RNr/4p1k1/2RqP1b1/1n2pqp1/p2NQrP1/1q2b2R w - - 0 2 legal: proof: e4 b5 a4 bxa4 d4 g5 h3 f5 d5 f4 d6 Nc6 Ra2 Ne5 Ra3 Ng4 Be3 fxe3 Ra2 cxd6 Ra1 d5 Nd2 d4 Nb1 Ne5 h4 g4 Qd3 Nf7 Qd1 Ng5 hxg5 Qb6 Na3 Qc7 Nb1 Qd8 Ke2 Kf7 Kd3 Kg6 Kc4 a5 Kb5 e5 b4 d5 Kc6 h5 f4 h4 c4 g3 b5 a3 b6 d3 c5 h3 b7 a2 b8Q h2 Qb5 d4 Qe2 a4 Qa5 d2 Nf3 d1R Qb4 a3 Nbd2 d3 f5+ Kh5 f6 Ra7 g6 Rg7 f7 Nh6 Rc1 a1Q Nh4+ Kg5 Rc4 a2 Qa3 Bd6 f8R Nf5 Rf6 Rh6 Rd4 Bf8 Rdd6 Qd4 Qa7 Be6 Qe7 Rc1 Kb7 Rc2 c6 Bd7 c7 Rb2+ Nb3 d2 c8R d1Q Rc4 Rc2 Nd2 Be6 Qd3 Qf3 Qe2 Qb8+ Kc6 Qb1 Kc7 Bd7 Rg1 h1Q Kd8 Qh2 Rh1 Qg1 Qd3 Qb7 Be2 Qgb1 Bd1 Rb2 Qe2 Bc8 Ba4 Qc7+ Ke8 Qdb6 Bb5 Nd4 Bd7 Nb3 Bb5 Rf7 g7 Qd4 g8B Rg7 Bf7 Bg4 Ng6 Rc2 Qd3 Rc1 Qe2 Rf1 Bc6 Rf2 Rd5 Qca7 Kd8 Qac5 Bce8 Qa5+ Qc7 Bb4 Rdd6 Qac5 Qe7 Qa7 Nf1 Be1 Nd2 Qc7+
1R1B3k/1Pn2n1p/p1B1nqrN/3Q4/PR1pr3/KrBQ3p/3Bn3/3b2qN w - - 0 1 illegal: No proof kernel
4KRQB/1nQ4n/1q1Np3/pN3B1k/q2Pn3/P2pn1bp/RrR5/1b1q2R1 w - - 0 1 illegal: No proof kernel
r5qQ/p2n4/6k1/1B4p1/pq3r2/2Rr1NB1/PKQQrPpn/R1nQ1bN1 w - - 0 1 illegal: No proof kernel
r3Q1r1/p1b4b/P1QB4/5P2/K2N1Rn1/1rn2p1p/B1Nr1p2/BBR1bb1k w - - 0 1 illegal: No proof kernel
1Q1N2bR/B3pBB1/p2nnN1R/Q4bn1/P7/1nBk1r2/Ppp3bK/r1b5 w - - 0 1 legal: proof: h4 d5 c4 dxc4 e4 g5 e5 gxh4 e6 Qd7 b3 Qa4 bxa4 fxe6 Bd3 e5 Bf1 e4 g4 Kf7 f4 Ke6 Kf2 Kd5 Kg2 Kd4 d3 b5 f5 c5 g5 h5 f6 c3 g6 h3+ Kh2 c4 f7 a6 g7 e3 Nd2 c2 Qe2 c3 Ba3 c1N Nc4 h4 Nd6 c2 Qf3 e2 Qf5 e1N Bg2 b4 Qb5 b3 Bf3 b2 Qa5 Bf5 Bb4 Nd7 Ne8 Nb3 Bh5 Ndc5 Nf6 Nh6 g8Q Ne6 Ne2+ Ke3 d4 Kd3 d5 Bg7 f8B Nf7 d6 Bh6 d7 Nd6 d8B Bc1 Qf7 Rg8 Bb6 Rg1 Bg7 Rf8 Qg8 Rf7 Nd4 Rf1 Rg1 Nf3+ Kh1 h2 Qb8 Nfg5 Nc6 Rf8 Nd8 Rf3 Kg2 h1B+ Kh2 h3 Bc3 Bg2 Ba7 Rf1 Bf7 Bd5 Kg3 h2 Rb1 h1B Kh2 Bhg2 Rh1 Be3 Re1 Bd2 Re4 Ra1 Rh4 Bc1 Rh6 Bh7 Kg1 Bg8 Rh8 Bde4 R1h6 Bg6 Kh2 Bf5 Nb7 Rc8 Nd8 Rc4 Bh5 Rf4 Bf7 Rf3
2k1rB2/1R4q1/3PnNQp/2p2NpR/1Q1nBr1p/br1Qp1KP/2Q3b1/4n3 w - - 0 1 illegal: No possible last move
2n2r2/BN3pQq/r1Q1N3/2pPp1n1/1k1pb1B1/3BrBq1/4pP2/3Kb1RR w - - 0 1 illegal: No possible last move
b1q2rKR/r3qp1N/R2QB2P/7Q/Q1nb1BPp/pp2p2k/1r2N2n/Q7 w - - 0 1 illegal: No possible last move, all moves rejected
NbQ5/PNBRp1K1/p1n2R2/1R2pr1B/5k1P/1qn1n2R/p1bpr3/n1Q5 w - - 0 1 illegal: No proof kernel
3Br2r/3KQpr1/1Q4N1/1nR2P1p/p2np2q/4RBn1/bNP2p2/2kq1QQ1 w - - 0 1 illegal: No proof kernel
2BQ3N/1pp1RBq1/K6p/1Pb2R1N/3r3k/pp2Rn1P/1b1Qq1r1/1R2r2b w - - 0 2 illegal: Other
1Q1BbNn1/N7/3Np2r/1PkNK3/2qRPp1r/1p2n1nB/p1p4n/3Qr2R w - - 0 1 illegal: No proof kernel
1Q1B1qb1/Q1B1Bp2/1BN3R1/6r1/1qppKP1p/1p1q4/2qPn2b/RnN2k2 w - - 1 2 illegal: No possible last move, all moves rejected
q2NQ3/2B4n/B1bp2N1/2p1b1p1/1P4p1/kN2p2K/Nrr2pPR/R1nQ3n w - - 0 1 illegal: No possible last move, all moves rejected
1bkBqR2/1Np3pQ/5rr1/P4P1p/Rp3p2/n2BRR1Q/K1bp4/1Nq4n w - - 0 1 illegal: No proof kernel
1B4b1/NRR1N2p/p2qB2q/pp1p2rP/3pQ3/1kNn3n/1n1P4/bN1K3Q w - - 0 2 illegal: No proof kernel
b3B1k1/pNn3n1/1Prp1r2/3P3p/2Rrn1p1/1Bb1p1K1/1p4Q1/1NQR1BB1 w - - 0 1 illegal: No proof kernel
2RN3n/2bQrbpB/1pn1p3/1pPp4/r3QN1k/1npPB1N1/2N1r3/1RK5 w - - 0 1 illegal: No proof kernel
1Qbb1q2/5nKB/N2p1r2/2BPqB1k/q3pq2/1Q2Pb2/1nn3R1/1q1R1NrB w - - 0 1 illegal: No proof kernel
1b2bK2/1q5p/2R5/pRRb2Rr/2nBBn2/r1nNn2Q/P1kn1rQP/1N3q2 w - - 0 1 legal: proof: e4 d5 c4 dxe4 f4 g5 c5 gxf4 c6 bxc6 Be2 c5 Bf1 c4 Kf2 Kd7 b4 Kd6 d4 Kd5 g4 f5 g5 c5 g6 e5 b5 e3+ Kf3 e2 b6 e1R g7 e4+ Kf2 f3 Kg3 c3 Kf4 f2 b7 e3 Nf3 c4 Nbd2 c2 Nh4 e2 Rb1 c3 Rb2 Bd7 Nhf3 Qe7 Bg2 f1B Nb3 Kc4 d5 Nf6 Kg5 f4 Kh6 Ng4+ Kh5 Nc6 b8R Na5 g8R Ne3 d6 Be8+ Rg6 Qb7 d7 Bd6 Kh6 Rf8 Ng5 f3 Kg7 f2 Nd2+ Kd3 Ngf3 Nac4 Rc8 Bb8 Bh3 Bg2 Rcc6 f1N Nb1+ Nfd2 Rb5 a6 Ba3 c1N Bb2 c2 Bd4 Rg1 Rg3 e1N Rgg5 Ne2 Qc1 Rf5 Qb2 c1Q Qa3+ Kc2 Ne5 a5 Nd3 Bd5 Bg2 Nc3 Be4 Rg3 Rbc5 Re5 Kf8 N1g2 d8Q Qf1+ Qf6 Nf4 Qg6 Ra6 Rg1 Rb6 Rf5 Rf3 Qg2 Rf2 Rg5 Rb4 Rb5 Ra4 Rcc5 Re6 Rg6 Re5 Rgc6 Rg5 Qf3 Rh5 Rg5 Ng4 Qg2 Nce2 Nb4+ Kd1 Qah3 Nge3 Bg7 Ra3 Bd4 Nc3 Nd3 Kc2
k2B2r1/r2B2p1/N1R1bB1q/6P1/2Q2rb1/1pK2bQ1/bPB2Rbn/n2nbN2 w - - 0 1 illegal: No possible last move, all moves rejected
1r1B3N/1r1Q3R/2qr3r/K1q2Nr1/bpNp4/1P1P1n1B/nNk2brQ/2nR4 w - - 0 1 illegal: No proof kernel
N1KR1Qr1/q1RN1p2/b2b1P2/5b2/q2QB2p/3rr2P/qN2n1b1/qn1N2Bk w - - 0 1 illegal: No proof kernel
3K1B2/n1p1R3/1BP1r1qR/1Nn2p2/Bb1rbP2/1BQ4b/Qn1b1nk1/2Nqq3 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 e5+ Kh5 b5 f4 e3 a4 Ke4 c4 e2 d4 e1N g4 b3 c5 h3 d5 b2 g5 b4 a5 h2 a6 b3 d6 Nd3 c6 Bh3 g6 Nd7 a7 Ne7 Kg5 h5 g7 h4 g8Q N7c5 Kf6 Rh6+ Kg5 Re6 Na3 b1B d7 b2 Ne2 Kf3 Qd2 e4 Nb5 e3 Qc3 f5 Bd2 Qe8 d8B Nc8 Nc1 e2 Be7 e1B Be3 Bd2 Bf2 Rb8 a8B Na7 Bb7 Rd8 Bc8 Rd4 Be2+ Kg2 Bd1 Qf7 Ba4 Bc2 Bd7 b1Q Be8 Qh7 Bf7 Nb2 Re1 h1N Bg1 Red6 Bfb3 Nf2 Re6 Qf7 Rh6 Be4 Ra3 Qh7 Qe6 Qc2 Kf6 Qd1 Ra1 Qg8 Ra2 Qgg4 Kf7 Qe1 Ke8 Qg6+ Qf7 Rf6 Bd6 Re6+ Kd8 Bg4 Ra1 h3 Ra2 h2 Qg8 h1Q Qf7 Be3 Qg8 Nc4 Re2 Bd2 Qf7 Bh3 Qg8 Bd5 Be7 Nb2 Qf7 Bg7 Bf8 Be5 Re4 Bd6 Re5 Be4 Qg8 Rf6 Re7 Qd1 Qgc4 Re6 Qe2 Be1 Qec2 Bd2 Qb1 Qe1 Qa2 Na6 Bd5 Qd1 Qaa3 Bb4 Re8 Ng4 Re7 Rc4 Bd4 Nf2 Bb6 Nc5 Qab3 Rd4 Qa2 Nd7 Bc4 Qhe1 Bcb3 Nc5+
1R3N2/2pbbp2/1BPRB3/1qQ2qn1/qrnn2b1/3R1P1R/2Nr4/Qq1k1bK1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 g4 Kd7 a4 Kd6 c4 Ke5 g5 Kd4 c5 e5 a5 h5 g6 b5 g7 b3 c6 b4 a6 h3 a7 b2 d3 b3 Bh6 h2 Qc1 h4 Ke2 e3 Ke1 h3 Ra2 e4 Bg5 e2 Ra3 Be7 Ra2 Nd7 Bd2 Rb8 a8R Rb4 Rb8 Nb6 Ra7 Qd5 Na3 b1Q Ra6 b2 Nc4 Qf5 Ra4 Nh6 g8Q Bd7 Ne5 Nc4 Qg5 Rd8 Ra3 Qa2 Ng6 b1Q Rb3 Qa4 Nf8 Qfb5 Bg2 Nf5 Bf3 Qc2 Bg4 Qb1 Rb2 Qbc2 Be3+ Kc3 Nf3 Nd4 Ra2 Kb3 Be6 Kc3 Qa1+ Kb3 Rf1 h1B Qc5 Bg2 Rh1 Bf1 Rh2 Qaa6 Rh1 h2 Ra5 Qc8 Raa8 Qa2 Ra3+ Kc2 Rb3 Nf5 d4 Qaa4 d5 Nd4 Rg1 h1B d6 Bhg2 Rh1 Bh3 Rd3 Bg4 Rh3 Be8 Bd5 Qf5 Be6 Rd7 Nh4 Rd8 Ng2 Bd7 Bd5 Ne6 f3 Ng5 Kf2 e1Q+ Kg1 Qb1 Bf2 e3 Ne1+ Kc1 Be6 e2 Nc2 e1N Re3 Bc8 d7 Kd1 Rd3+ Kc1 Na3 Nc2 Rd6 Nd4 Nc2 Kd1 Be3 Re8 d8R Bd7 Bd2 Rb3 Ba5 Rb4 Bb6 Bf6 Bd5 Re2 Be6 Rd2 Rb7 Nb3 Rbb8 Be7 Rd3 Bc8 R8d7 Nd4 Rd6 Bd7
1BBk2rq/3q3Q/br3p2/Q1p2N2/2BbN1br/1b1r3R/R1PnnP1q/K4B2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 g4 e5 a4 c5 d4 h5 Kd2 b5 d5 h3 d6 h4 g5 h2 g6 h3 g7 b3 Kc3 b2 a5 e3 a6 e2 a7 e1Q+ Qd2 e4 Na3 b1B Kb2 e3 Qd4 e2 Qd3 b4 Nb5 b3 Qd5 Qc3+ Ka3 e1R Nd4 b2+ Qb3 Ba2 Ndf3 b1R Nd4 Rh4 Ngf3 Nc6 Be2 Rd1 Nd2 Nf6 g8B Bg7 N2f3 Ne4 Bf1 Ba6 Nd2 Qd3 Qc3 Rb6 d7+ Ke7 Bb2 Bb3 Qa5 Be5 Bc3 f6 Bc4 Qh8 Kb2 Rc8 a8B Rg8 Bf7 Qb5 Ra2 Qa4 B7c4 Qb5 Nb1 Rd3 Bb7 Nd2 Ka1 Qa4 Bc8 Qb5 Ne6 Nd4 Ng7 Ne2 Bb2 Qc6 Nc3 Qd5 Ne4 Qb7 Rg1 h1Q Rg3 h2 Rh3 Qg2 Bd4 h1B Bc3 Qh2 Nf5+ Kd8 Bd4 Bf3 Bc3 Kc7 d8Q+ Kb8 Qe7 Qd7 Qg7 Kc7 Qh7 Kd8 Bb2 Bg4 Bd4 Bf4 Be5 Be3 Bb8 Bd4+
1brkq1Q1/1R6/N2Kn1b1/4pQ1p/3RP1BP/rn2Rn2/3rN1r1/n1Bn1nR1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 Kd2 d5 Kd3 h5 e4 b5 f4 g5 c4 e5 a4 b3 h4 b4 c5 g3 c6 g2 c7 b2 a5 b3 f5 g4 a6 g3 a7 Bd6 f6 Ne7 Qf3 Nbc6 Nh3 g1R Bg5 g2 Qf4 Na5 Nf2 Nec6 Qg3 Bf5 c8R Bb8 Be2 Bg6 Na3 b1N Nc4 b2 Nd2 Na3 Nf3 b1N Rc7 Nd2 Rd1 Nc2 Rb7 Nf1 Bc1 Nb3 Rh3 Qd7 f7+ Kd8 f8Q+ Qe8 Qf5 Nca1 Re1 Rh1 Ng1 Rh2 Bf3 Rg8 Ne2 g1N Bg4 Rg2 Rh1 Nf3 Rg1 Rg7 Nf4 Rc7 Re3 Rc8 Ne2 Ne7 Qe6 Nf5 Qf4 Ng7 Qg8 Ne6 Qf5 Rc2 Nd1 Ra2 Ndc3 Ra3 Nb5 Bd6 Nc7 Rc8 Na6 Bc7 a8R Bb8 Nc3 Rg3 Ke2 d3+ Kf2 d4 Ne2 d2 Raa7 d1R Rb4 d3 Rab7 d2 Rd4+ Bd6 Rc3 N1h2 Ke3 Rg2 Kd3 Nec5+ Kc4 Nf1 Kd5 Bb8 Re3 Ne6 Nc7 Re1 Kd6 d1N Ng3 Ba7 Na6 Ree2 Re7 Ref2 Rb7 Rd2 Ne2 Bb8+
2R1NrR1/Q1Bk1b2/3np1b1/5N2/1r3BbK/n2BP1rp/1b3Q1P/B1r1qbb1 w - - 0 1 illegal: No proof kernel
5nk1/b3r1nR/2rQ2nQ/5Bp1/2q1NR1n/2pb2B1/B1P2pP1/nBNK2rb w - - 0 1 illegal: No proof kernel
5rN1/BBpR2NB/2Qr1bb1/Q1PK3n/q2R2rp/n4r1P/1rqp1b2/1k3B2 w - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 g5 axb4 g6 fxg6 Nc3 g5 Nb1 g4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 b5+ Kd3 d5 c4 h5 a4 g5 h3 b3 f3 b2 a5 h4 c5 b4 a6 b3 a7 g3 Qe1 g4 Na3 b1R Bg2 b2 Nb5 Nd7 Qc3 Rh6 Ne2 Be7 Qb4 Ngf6 Nec3 Nb6 Nd6 Nh5 Rd1 Bf5 Bd2 Qd7 Ra4 Bg6 Qa5 Bf6 Bf1 g2 Nf5 g1R Ng7 Rf8 a8B g3 Bb7 Nc4 Be1 Na3 Rc4 g2 Rb4 Bg5 f4+ Kf6 f5 Ke5 f6 Qa4 f7 Bf6 Rd2 Rc1 Rd1 b1R Rd2 Rb2 Rc4 Re8 f8Q Kf4 Qg8 Rf8 Qe6 Rcc2 Rd1 Rf2 Qc6 Kf3 Nf5 Kf4 e5 Kf3 e6 Kf4 Rd2 Rf3+ Ke2 Qc2 e7 Qa4 e8B Ke5 Rc2 d3+ Kd2 d4 Ng7 Kf4 Nd5+ Ke4 Bf7 Rb3 Bg8 Rb2 Kd1 d2 Ke2 Rg3 Kf2 d1Q Rd2 Qdc2 Bh7 Rg4 Ke2 Rh1 Rb4 g1B Rc4 Bf2 Ne7+ Ke5 Kf3 d3 Ng8 Rh2 Rc3 Kd4 Rb3 Kc4 Rb4+ Kc3 Rd4+ Kb3 Rd1 Ka2 Rd2 Kb1 Rd7 Rg5 Rd4 Rf5+ Ke4 Rf3+ Kd5 Rb4 Re2 Rb2 Re7 Rg2 Rd7 Rgg3 Qab5 Rg4 Ba5 d2 Bb6 Qa8 Qb4 Qaa4 Ba7 Be4+ Ke6 Bg5+ Ke5 Bd3 Bf5 Re6+ Kd5 Bf6 Bh7 Bg6 Qa5 Rd6+
NnN1rR1R/3n4/2p3B1/N2qp3/k1P1Q1np/n3Pb2/qr3nNQ/B1b3Kr w - - 0 1 illegal: No possible last move
qbqqNB2/3r3Q/2b1kp2/2pR2pB/Q1nq3r/3RqQPK/2P4n/1bQ3N1 w - - 0 1 illegal: No proof kernel
1KB1Rb1N/B1bb1p2/4Q2b/2p1qn2/1qP4k/RQn2r2/2pNBPq1/1rBb4 w - - 0 1 illegal: No possible last move, all moves rejected
r2B2nb/6n1/1BnQQ3/pN1KNb1k/4BR1p/Pb3pnq/rqr2PR1/1B6 w - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 g5 c5 gxh4 c6 bxc6 Ba6 c5 Bf1 c4 Ke2 h5 Ke3 e5 d4 c5 g4 f5 b4 Kf7 a3 Kg6 g5 a5 d5 h3 b5 h2 d6 h4 d7 f4+ Ke2 c3 b6 c4 b7 e3 Kf3 e4+ Ke2 c2 Bd2 c1Q Qc2 c3 Nf3 Qb2 Qd3 c2 Nd4 Bg7 Qb3 Nc6 b8Q Kh5 Rg1 h1B g6 Qf6 d8B Qe6 Nb5 Qh3 Qc4 Bf5 Rg2 Rh7 Qb3 Bh8 Qd6 Rc7 g7 Rcc8 Qbe6 c1N+ Kd1 Rc7 Bd3 e2+ Ke1 Rcc8 Be3 Rc7 Bc2 Rcc8 Kd2 e1N Rg4 Ne2 Beb6 Nd3 Rg2 Ng3 Ra2 f3 Ke3 Nc5 Nd2 Rc7 Kf4 e3 Bb1 e2 Nc4 e1R Ne5 Re2 Ra1 Rcc8 Be4 Rc2 Rag1 Rd2 Bb1 Bc2 Rc1 Bb3 Rc4 Rc2 Ke3 Rc7 Rf4 Rd7 Qde7 Rdd2 Q6d6 Ne6 Qf6 Nh6 g8B Ng7 Bd5 Ng8 Qde6 Ba4 Be4 Bb3 Rg1 Bg2 Qfe7 Bf1 Q7d6 Bd3 Rg2 Rd1 Bd5 Bf5 Be4 Rdc1 Kd3 Qa1 Ke3 Ra2 Kd3 Qb2 Ke3 Bd1 Kd3 Bc2+ Kc4 Ba4+ Kd5 Rc3 Be3 Rc2 Beb6 Bb3+
kn1R4/Bp4rN/Q2N2q1/N2pqR2/3Ppb1N/bP1r4/2Q1br2/qbnB3K w - - 0 1 illegal: No proof kernel
rB1K1B1R/1Q2r3/pn1r1b1N/Pr1bqB1k/1q1Rp2p/2r5/N3PQ2/3r2Bn w - - 0 1 illegal: No proof kernel
3q4/2rRp1p1/rB1n1pPq/2B5/bQ3PK1/B3b1n1/1R3r1k/1NNnQrnB w - - 0 1 illegal: Other
k4B1Q/1b1q4/1nR1RNnr/3pp1br/q3B3/2pPr2r/NNP5/Kn1QN2n w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 f4 b5 a4 h5 g4 d5 a5 Kd7 f5 Kc6 f6 Kb7 f7 e5 d3 c5 Kd2 b3 Kc3 b4+ Kb2 c4 g5 h3 g6 h4 g7 e3 Rh2 e2 Rg2 e1R Nd2 c3+ Kb1 b2 Ngf3 h2 Nb3 h1R Rg6 h3 Rd6 h2 Bh6 Nd7 Nc1 Re3 Bg2 Ne7 g8N Ra6 Ne1 Qe8 Bg7 Rh5 Be4 Ka7 Ka2 Bb7 Rb1 Rc6 a6 Qd8 Bh6 Bg7 f8Q Bf6 Qg7 Bg5 Qh8 Qe8 Bf8 b3+ Ka3 Kb8 Ra1 b1Q a7+ Ka8 Rg6 b2 Kb3 Qc8 Ra6 Qa1 Rb6 Rf6 Rc6 b1N Rh6 Qa6 Rg6 Qb5+ Ka2 Nb6 Ka1 Qd7 Na2 Qa4 Rh6 Rg1 Rg6 h1N Rh6 Rgg3 Rg6 Rf7 Rge6 Rfh7 Nf6 Ng6 Qg7 Bc8 Qg8 Kb7 Qh8 Rgh3 a8N Nc4 Nb6 R7h6 Qh7 Ka7 Qg7 Bb7 Qh8 Nd6 Nc4 Ka8 Nb2 Nc4 Bf3 Nb6 Bg2 Re2 Be4 Ree3
1rrq1b1n/B1pNp3/n6N/Q2RQ1pK/2n1P3/B2qR1P1/n1b2kB1/r2B3r w - - 0 1 illegal: No proof kernel
1Nr1Q1n1/1q1B1Q2/1pppR2r/1PPRq1BN/2p4B/bqBb4/1r2b3/nK4k1 w - - 0 1 illegal: No possible last move, all moves rejected
8/1QQ1rpnb/1q1p3k/n1qBr1p1/1Q1K1bP1/1rRP1RQN/1B4p1/b4Nn1 w - - 0 1 illegal: No possible last move, all moves rejected
k1N3r1/b3n1pb/5p1p/1p1q1r1P/b3Rn1K/RBB1Q2N/n2qqPQ1/1N4N1 w - - 0 1 illegal: No proof kernel
K4r2/pBR1Qp2/Pk1B1Pn1/1bNRN1b1/B1q5/n1pr3b/1b1rb2p/5QB1 w - - 0 1 legal: proof: d4 e5 c4 exd4 h4 b5 h5 bxc4 h6 gxh6 Kd2 h5 Ke1 h4 Kd2 h5 b4 c5 e4 d5 a4 Kd7 g4 Kc7 f4 d3 Ke3 c3 a5 d2 f5 c2 b5 h3 a6 h2 f6 h4 g5 h3 e5 c4 Kd4 Rh5 b6+ Kc6 e6 Qd7 g6 Qc7 e7 Bh6 e8B+ Nd7 b7 Kb6 b8B Ne5 g7 Ne7 g8Q N7g6 Ba4 Bg5 Bg2 c3 Qe8 Be6 Qf1 d1B Be3 c1B Nf3 Be2 Nbd2 Nc4 Nb3 Na3 Bg1 Bb2 Re1 Bd7 Rb1 Bdb5 Nc5 Rh8 Re1 Rf8 Ne5 Qc6 Bd6 Rd8 Qe7 Rd7 Be3 Qc8 Rg1 h1B Bf3 h2 Rb1 Bh4 Rg5 Bg2 Bg1 Bh3 Rh5 Qc7 Rd1 Bg5 Rh8 Rb8 Rc8 Qc6 Rc7 Rf8 Ned3 Nf4 Ke5 d4 Bd5 Rdd8 Ke4 Ng6 Ne5 d3 Rd2 Qa8 Bb7 Qc8 Rd1 d2 Kd5 Bed3 Re1 d1R Re2 Ka5 Rd2 Be2 Rd3 Rd2 Rd4 Bbd3 Kc6 Qg4 Rd5 Qc4 Bc8 Rd7 Kb7 Rdd8 Ka8 Kb6 Qf4 Qd4 Qf5 Bb5 Qf1 Qc4 Rd4 Rh8 Rd3 Rh4 Rd5 Rf8 Kb8 Rhd4 Ka8 Be8 Bb7 Bb5+ Qe8 R4d3 Qd8 Be8 Qe7 Bb5+
Kb5r/1Bp1p2p/N1n1Q3/RN2bR2/p2r2b1/1Q2Pr1P/Q2rq2r/2k1B1Qn w - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 g5 bxa4 g6 fxg6 Ra3 g5 Ra1 g4 b4 Kf7 f4 Kf6 Kf2 Kf5 Ke3 g5 d4 a5 b5 g3 h3 g4 d5 g2 Kd4 c3 Kc5 Ke4 b6 a3 b7 c2 d6 a2 d7 g3 f5 Bg7 f6 Qe8 d8Q Nh6 f7 Ng4 f8Q Nc6 b8Q Nf2 Qf6 Bg4 Qe6+ Be5 Q8d2 Qh5 Qbb3 Raf8 Nf3 g1R Nd4 g2 Nb5 Rf3 Rh2 Rh1 e3 g1R N1a3 Rg2 Bb2 c1B Bc3 Bb2 Nc2 Ba3+ Nb4 a4 Rb1 a1R Qda2 Bb2 Be1 Bc3 Na6 Bd4+ Kc4 Ba7 Rc1 Bb8 Kc5 Rgg3 Bg2 Rb1 Rc3 Rb2 Rd3 Rd2 Rd5 Rf1 Rh1 Rd4 Rg1 Nh1 Qc1 Rf2 Rf1 Rfd2 Qcd1 Nf2 Bh1 Rg2 Qda1 Rh2 Qc1 Nb4 Qca1 Nc2 Kc6 Nb4+ Kb7 Nc6 Bg2 Nh1 Ka8 Rd8 Qb4 Kd3 Qbb3+ Ke2 Q1b1 Rh8 Qbg6 Rg3 Rf5 Rf3 Rc5 Rc2 Rd5 Kd1 Qg5 Kc1 Qg7 Rf1 Be4 Rcd2 Qgg8 Bd1 Qg1 Qe2 Bg2 Qc4 Rc5 Bg4 Bd5 Rf3 Be4 Na5 Bb7 Nc6 Nc3 Bg3 Ra5 Be5 Nb5 Qe2
4R1r1/r1bBK2Q/NB2pQ1q/n3pN2/1n1b2p1/2bpPBPn/BR2b3/r1k5 w - - 0 1 illegal: No proof kernel
B1N4b/1qr1B1n1/1BQ1p1RR/2pp2n1/2P1bb2/kr1N2n1/2pPQqB1/1b4K1 w - - 0 1 illegal: No proof kernel
2R4b/3BBqpp/2q3P1/3p1nK1/1p1p1n2/BP1BQn2/RrNN2k1/r1Qr3b w - - 0 1 illegal: Other
4B2R/rp1pKnpB/5b1n/2N2QB1/1Pb1Bp1n/p5br/3q1kP1/2R2NbQ w - - 0 1 illegal: Other
3b4/3r2NN/K1n1bR2/q2p1nN1/pq2pp1k/1p3B2/1Q1PpP1r/B2NQR1q w - - 0 1 illegal: No proof kernel
2Bb3R/1n1pBB1p/Nqb2pQn/2Q1qP1K/5p2/1R2N1rp/2Bp1p1P/2k1r3 w - - 0 1 illegal: Other
1k6/2p2B1K/2Bb1n2/pb2pqp1/p1p1R2B/pBN3R1/PqP3Q1/1Qrnr2N w - - 0 1 illegal: Other
Q6B/rQ1q1bP1/bNQ3n1/k6n/1N1r1P1b/r1R2b1r/4B2K/1BnN4 w - - 0 1 legal: proof: h4 a5 a4 d5 c4 b5 cxd5 g5 e4 gxh4 b4 f5 bxa5 fxe4 Ra2 c6 Rb2 c5 Rb4 cxb4 axb5 Bd7 Nf3 Bf5 Ng1 Bc8 d4 Kd7 g4 Kc7 f4 h5 Kf2 e5 Kg2 e3 a6 Kb6 d6 b3 g5 e4 g6 e2 d7 e1N+ Kh2 e3 d5 e2 d6 h3 a7 b2 Bd2 h4 Qa4 Be7 Bb4 Rh7 Bg2 Nc6 Nd2 b1B Be4 Ba6 Bc3 Ba2 Bb1 Nd3 Bh8 e1R Ne2 Nc1 Nc3 Ne5 Nd1 Nf6 g7 Nh5 Qe4 Re3 Qc6+ Ka5 b6 Ra3 b7 Ng6 b8Q Bf7 Qbb7 Qe8 d8N Qd7 Rg1 Bg5 Rg3 Rh6 Kh1 h2 Rc3 Be7 Kg2 h1B+ Kg1 h3 Kh2 Qc8 d7 Bf3 Rd3 Bh4 Rc3 Rb8 a8B Qc7 Qa7 Rb4 Bb7 Rd4 Nc4+ Kb4 Nb6 Ka5 Bc8 Qd6 Qab7 Qd5 Ne6 Qd6 d8Q Qd7 Nc5 Rh7 Nd3 Rh6 Kg1 h2+ Kf1 Be2+ Kg2 h1R Nb4 Rg1+ Kh2 Rg3 Qe8 Bf3 Qee4 Nf8 Qa8 Rf6 Qcb7 Ng6 Qe8 Rc6 Qe6 Rc7 Qec6 Qd6 Bg4 Qd7 Qbb8 Ra7 Qbb7 Bh1 Be2 Be4 Rb3 Bf3 Rc3 Rh3+
KNR2Q2/2r1P1rN/2P2B1Q/3n2q1/k1pr2nB/2q1Br2/r1n3N1/nQ6 w - - 0 1 legal: proof: b4 b5 f4 e5 d4 exf4 c4 Ne7 cxb5 Nec6 a4 Ne7 d5 Ng8 a5 Be7 Nf3 Bc5 Ng1 Bb6 axb6 Qg5 Nh3 Qf6 Ng1 Qd8 Be3 c5 Ra5 g5 Ra3 Bb7 Bc1 Bc6 dxc6 g4 Rf3 h5 g3 Na6 Bh3 gxf3 g4 Nb8 g5 Nh6 Be6 Ng8 Bg4 hxg4 Kf2 d5 e4 a5 h4 f5 g6 c4 b7 d4 b6 a4 b5 d3 e5 a3 e6 a2 h5 a1N g7 d2 h6 Ne7 h7 Nd5 g8Q+ Ke7 Na3 Kd6 Qg7 Kc5 Nh3 Kb4 Qh6 Qg5 e7 Rc8 h8B Na6 b8Q Rc7 Nc2+ Ka4 b7 Nab4 Ne3+ Nbc2 b6 Ra6 Qf1 d1R Ng2 Rd4 Qbf8 Ra7 b8N g3+ Kg1 Ra5 b7 Ra6 Qe1 f2+ Kf1 Ra8 Ke2 f1R Be3 Rf3 Qb1 Ra7 Bf6 Ra6 Ne1 g2 Rf1 g1Q Ng2 Rg3 Rf3 Qc1 Rf1 f3+ Kf2 Qg6 Ng5 f4 Nh7 Qd3 Rh1 Qc3 Rh5 Rg7 Rf5 Ndb4 Rd5 Ra5 Rd8 Nd5 Rc8 Ra6 Nd7 Ra8 b8B Ra6 Ba7 Ra5 Nb8 Q1d2+ Kf1 f2 Bb6 Qc1+ Ke2 f1N Bf2 Nh2 B2h4 f3+ Kf2 Rd1 Be3 Ng4+ Kg3 f2 Kf3 f1R+ Ke4 Rh1 Kf5 Rdf1+ Ke6 Rf3 Kd6 Rd1 Re8 Rb5 Rc8 Rb2 Kc5 Q1d2 Kd6 Ra2 Kc5 Nf4 Kb6 Qd5 Ka6 Qg5 Kb6 Rd4 Ka6 Rcd7 Kb6 Nd5+ Ka6 Rd8 Ka7 Rd7+ Ka8 Rc7
BbbBN1BN/6P1/3p1RQn/2b1P2q/1kb2K2/2pq3Q/8/nbN3qQ w - - 0 1 legal: proof: b4 b5 c4 a5 f4 g5 a4 e5 axb5 exf4 h4 gxh4 b6 Na6 b5 Be7 b7 Nb8 b6 Bf8 e4 h5 d3 c5 Ra3 a4 Rb3 Ra5 Rc3 Rb5 cxb5 c4 d4 Rh6 Ra3 Rc6 Re3 Rc5 dxc5 fxe3 Ke2 Ke7 Kf3 f5 g4 a3 e5 f4 g5 c3 g6 h3 c6 a2 c7 a1Q g7 e2 Bg2 e1B Nd2 h4 Nb3 h2 Nh3 Nh6 Rf1 h1Q Ng5 h3 Nf7 h2 Nh8 Nc6 b8N Bh4 b7 Na5 b6 Bf2 Na6 Bc5 b8Q Ke6 b7 Bfd6 Qd3 Qg1 Qa8 h1B Qg6+ Kd5 b8Q+ Kc4 Be3 Qe1 Nc1 Qeh4 Qbb1 Qhg5 Qbf5 Nb3 Qh3 Qh5+ Ke4 f3 Bg5 f2 Kf4 Na1 Qb7 Qg8 Bd8 Qd5 Qbb1 Qdd1 Ba8 Be4 Qb7 Bb1 Qbh1 Bb7 c8B Qd3 Nc7 Kb4 Ne8 Bb8 Bb6 d6 Be6 Ba6 Bg8 Bc8 Bd8 Qb5 Re1 f1B Re3 Bc4 Rg3 Nf7 Rg5 Nh6 Rf5 Qb7 Rf7 Qd5 Rf6 Qd3
4nKQ1/5q2/QpR2N1B/8/2PB1np1/n3qq2/1PkB1r2/Rrr1r1QR w - - 0 1 legal: proof: d4 f5 e4 c5 exf5 cxd4 a4 Nh6 a5 Ng8 a6 b6 Ra2 Bb7 axb7 a5 Ra3 a4 Ra1 a3 Nd2 a2 f4 h5 g4 e6 g5 Bc5 c3 Be7 Bh3 Bf6 Bg4 hxg4 Nb1 axb1Q gxf6 Rh3 Qb3 Rh5 Qd1 Rh8 Kd2 Kf7 h4 d5 h5 g5 h6 e5 h7 g3 c4 g4 Qe1 e4 Rh6 e3+ Ke2 g2 Ra3 Qe7 Nf3 Nc6 b8R Na7 Nd2 Nb5 Ra1 Qbe4 Rh1 Na3 Rc8 g1Q Qd1 Qf3+ Kd3 Ra6 Ne4 e2+ Be3 e1R Rc6 Ra8 Qa4 Rf8 Qa6 Qe8 Kd2 d3 Kc3 d2 Kd4 Qd7 Ke5 d1R Bd2 Qe8+ Kd6 d4 Rh6 d3 Rh1 Qa8 Kd7 Qge3 Kd6 Rc1 Kd7 Qb7+ Kd6 Ke8 f7+ Kd8 f6 Qa7 f5 Rb1 Bc3 d2 Ke6 d1N Bd2 Nc3 Kd6 Re8 f8Q Ne2 f7 Nf6 Qg8 Rec1 f8Q Qf7 Qh6 Nf4 Qh2 Rf8 Qg1 Re8 Qf8 Rg8 h8B Rg5 Qg8 Rh5 Rc5 Rh2 Rc6 Rf2 Bg7 N6d5 Bd4 Nc7 Qb5 Kc8 f6 Kb7 Qa4 Qg7 f7 Re6+ Kd7 Ne8 Kd8 Qg6 f8B Qf7 Bh6 Re7 Qb3 Ka6 Qa2 Re5 Nc3 Ka5 Nd5+ Ka4 Nf6 Qc3 Rc5 Ree1 Rc7 Kb4 Rc6 Nc2 Qa6 Kb3 Ne4 Qce3 Nf6 Qg6 Kd7 Na3 Kd8 Kc2 Kd7 Ne6 Ke7 Nf4+ Kf8 Qf7+
7N/1n1B2Bn/pk1p1r2/2rp2QQ/P2rR2p/1K3Pp1/B3RR2/Q4n1q w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 e4 fxe4 a4 e6 d5 exd5 Bg5 b4 Bh6 Qb6 Bc1 Qd8 g3 g5 Na3 bxa3 Kd2 g4 Ke2 Bd6 Ke1 Bf4 gxf4 g3 h3 Ba6 Be3 Be2 Bc1 Bg4 hxg4 Kf8 Qd2 Kf7 Qd1 Ke8 Kd2 h5 Kc3 a6 g5 h4 f5 d6 g6 Kd7 f6 Kc7 f7 a2 f8R e3 g7 e2 c6 e1N Rh2 Ng2 Ne2 Ne3 Nf4 Nh6 g8Q Qg5 Qh5 Nef5 Bb2 Qg6 Re1 a1R Bc4 Qf7 Re4 Nd4 Ba2 Rh1 Qgg5 Rd1 Ng6 Nf3 Kb3 Ng4 c4 Nf6 c5 Nh7 Bg7 Nd7 Rg2 Rg8 Nh8 Nh2 f3 Qe6 Rf2 Qh3 Rfe8 Nf1 Ree2 Qh1 R8e4 Kc8 c7 Kb7 c6+ Kb6 c8B Rf8 c7 Rf6 Rg2 Rd4 Rgf2 Ndf8 Bd7 Ne6 c8Q Nd8 Qcc1 Rc8 Qc3 Nb7 Qa1 Rc5
2Q1rr1n/2rNN2N/R2B4/1n1Qb1n1/3r2nP/qP1K3k/1bn2R2/1qRQ4 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kd2 Kf7 c4 Kf6 h4 a5 e4 g5 c5 d5 b6 d3 b3 a4 c6 a3 c7 a2 c8Q g3 b7 f2 Nc3 f1R Rb1 a1B Qd7 g4 Na4 g2 Rh2 d4 Nb6 f3 Qe2 f2 Rb2 g3 Ra2 Nc6 b8R Qe7 Rb2 Qa3 Nf3 g1Q Rb1 g2 Qc8 Rh7 Ne5 Nd8 Rh3 Bg7 Rf3 Nh6 Qc2 Bb2 Qc7 Ng4 Rh3 Nf7 Rf3 Nh8 Qc4 Re1 Rg8 Rf8 Qd1 Qh1 Ng6 g1N Qc5 Nh3 Qd5 Ng5 Ne7 f1R Rf2 Re3 Rg2 Rf4 Rf2 Qg1 Qc4 Ke5 f6 Qh1 Qc5+ Ke6 f7 Be5 Qd5+ Kf6 Nf5 Rg7 Nd7+ Kg6 Qg1 Kh5 Ne7 Rh7 Rg6 Rg7 Kd1 d2 Kc2 d1N Ra6 Nc3 Qd1 Nb5 Bd2 Qf1 Rc1 Rh7 Bb4 d3+ Kb1 d2 Kc2 Re2 Bd6 Qh1 Kd3 Rg7 Qe1 d1N Qd2 Nde3 Qd1 Rd8 f8N Nc2 Nh7 Rff8 Rg2 Rde8 Rh2 Ref2 Rg2 R2f4 Rf2 Bf6 e5 Rd4+ Ke2 Qg1 e6 Be5 Qd3 Rc4 Qd1 Rc7 Kd3 Rgf7 Ng6 Rf4 e7 Rd4+ Ke2 Rd8 e8Q Rdc8 Qee6 Rce8 Ne7 Bf4 Ne5 Na7 Qd3 Nge3 Rb1 Nb5 Qc8 Bg3 Nd7 Kg4 Rd1 Kh3 Rb1 Qc1 Qd1 Ng4 Ra1 Be5 Rb1 Bc3 Ra1 Qcb2 Rc1 Qba2 Ra5 Qb1 Ra6 Re4+ Kd3 Bb2 Nb8 Rec4 Nd7 Rd4+
KB5b/4B1P1/1bnr4/kbNN1r2/qR2B1Nr/1b1b2Q1/q1r2QP1/2nQ4 w - - 0 1 legal: proof: f4 c5 b4 g5 c4 b5 h4 e5 a4 exf4 axb5 Na6 Ra3 Nb8 d4 cxd4 Rc3 dxc3 hxg5 Qf6 Qd4 Qb6 Qd1 Qd8 Kf2 d5 Kf3 Kd7 e4 Kc7 e5 Kb6 e6 f5 g6 a5 e7 h5 e8Q d4 Ne2 a4 Rg1 a3 Qe5 a2 Qa4 a1B Qe4 d3 Nd2 h4 Qe6+ Nc6 Nb3 c2 Ba3 c1R Nc5 h3 Qd6 d2 Qd3 d1R Nc3 h2 Qac2 h1Q N3e4 Be6 Nf6 Qh2 Ng4 Rh4 Qf2 Bh8 g7 Nge7 Qb3 Rc2 Bd3 Qd4 Be4 Nd5 Qa4 Rdd2 Rb1 Nc3 Qb3 Qd5 Qa4 Ra2 Qd1 Rac2 Rb2 Ne2 Rb3 Ra5 Rb1 Kc7 b6+ Kd6 b7 Kc7 b8B+ Kb6 b5 Nc1 Rb2 Bd6 Rb4 Bc7 Bb2 Qg1 Bf6 Qd7 Be7 Rd6 Qfd2 Qd4 Qf2 Qa1 Qh1 Ra6 Qd1 Ka5 b6 Qa2 b7 Ra8 Nd3 Bb6 c5 Na7 c6 Bb3 c7 Qda4 c8N Nc6 Nc5 Ra6 Bf6 Ra7 Ne7 Ra8 Bc7 Rf8 b8Q Rf7 Nd5 Rf8 Be7 Rff6 Qfe2 Rf8 Kf2 f3 Ke3 f2 Kf4 f1B Qf2 Bb5 Ke3 Na7 Kd4 f4 Ke5 f3 Kd4 Rdf6 Ke5 Rf5+ Kd6 Nc6 Kd7 R8f7 Kc8 R7f6 Kb7 Rd6 Ka8 Bd3 Qg3 f2 Qf8 f1B Bb8 Bb5 Qf6 Bfd3 Qf8 Rfh5 Qff2 Rf5
R1K1QR2/4bq1P/n1nrq3/1q2r3/2Q1R1nB/4P2B/1B1n3N/Qb1b1b1k w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 e5 f4 exf4 b5 d5 cxd5 b6 Na3 Bf5 Nc2 Be6 Nb4 axb4 a5 Bf5 axb6 Bc8 Kf2 Ke7 d4 Kf6 h4 Kf5 b7 Ke4 h5 g5 d6 f5 d5 c5 h6 g3+ Kg2 c4 Kh3 c3 d7 f3 e3 g2 b6 f4 Kg4 c2 h7 b3 d6 f2 Qe1 f3 Rh2 b2 Ne2 g1Q+ Rg2 b1B Ra5 Ra6 Qd1 Nc6 b8R Be7 b7 Qc7 Bd2 c1N Nf4 Nb3 Qe2 Nc5 Nd3 Rb6 Ne1 Na6 Bc1 Nh6+ Kh3 Rg8 Bb2 Ng4 d8B Re8 d7 Qf4 Ra8 Qf7 b8Q Qh1+ Kg3 Qh6 Rf5 Qhe6 Qa7 Bb7 Rh2 Bc8 Bg2 f1Q Bh3 f2 Nf3 Bb7 Qb5 Qe2 Rg2 f1B Nh2 Q2c4 Qc5 Qb5 Rgf2 Nh6 Rf6 g4 Kh4 g3 Kg5 g2 Rf4+ Kd3 Ra4 Ke2 Re4 g1N Kf4 Kf2 Qc4 Ng4 Rf5 Nc7 Qa1 Nf3 Rf6 Kg1 Rf5 Bc5 Bh4 Nd2 d8Q Kh1 Qd7 Re7 Qe8 Na6 Kg5 Nd8 Rf3 Rd6 Rf6 Nc6 Kf4 Qg8 Rf8 Qgf7+ Bbf6 Rd8 Rb8 Nd4 Re5 Qc8 Ra8 Bf3 Re4 Bd1 Kg5 Nc6 Bb2 Qd5+ Kg6 Re6+ Kg7 Be7 Kf7 Rdd6 Qd8 Re5+ Ke8 Qf5 Qb8 Qg8 Qd8 Rde6 Kd7 Qgf7 Kc8 Rd6+ Qd7 Q5f6 Qe8 Q6e6+
3bqRR1/2P1q3/Q2BrB1Q/r1P2R1n/1k1n3q/4Q1Nq/qn2rr2/5BK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 b6 exf4 c4 Qg5 b5 Qf5 Nc3 Be7 Na2 Qg5 Nb4 cxb4 Qc2 Bf8 Qd1 Bb7 c5 Bd5 d3 Bc4 dxc4 Qd8 Kf2 Ke7 e4 d5 g4 h5 b7 f5 c6 Kd6 e5+ Kc5 c7 a5 e6 b3 b6 f3 g5 a4 e7 b2 e8Q b1Q g6 h3 g7 f4 Qe6 h2 Qee1 h4 Qb3 a3 Qec3 a2 Qd1 h3 Qdc2 d4 Bd3 Qe8 Be3 Ra5 Q3b3 Be7 Ne2 Nf6 g8R Nh5 Qc1 Nc6 b8B Rh6 b7 Bd8 Qcc3 Re6 Bg6 Qe4 Rhc1 h1Q Qd3 h2 Rab1 a1Q Ng3 Qa2+ Bd2 Qe5 Rf1 Qd6 Qe2 d3 Bc3 d2 Bd3 Qde7 Bf6 Nd4 Qa4 d1R Rb6 Rd2 Ba7 Rc2 b8Q Qg2+ Ke1 h1Q Qe3 Qgh3 Qb7 Qh4 Qa6 Q1h3 Rf2 Rb2 Bf1 Rd2 Qd7 Rc2 Rc6+ Kb4 Rc5 Rb2 Rf5 Rd2 Rg2 Rc2 Rf8 f2+ Kd1 f3 Qdc6 Re2 Rg1 Nf4 Rg2 Nd3 Bc5+ Kb3 Bd6 Kc3 c5 Kb4 Qce4 Nb2+ Kc1 Qh6 Q4f4 Q6h4 Qh6 Rd2 Be2 f1N Rg1 f2 Rg2 Nh2 Bf1 Re2 Rg1 Re1+ Kd2 Ng4 Bd3 f1R Rg2 Rf4 Bf1 Rc1 Rg1 Rc2+ Ke1 Rg2 Bb5 Rfe4 Kf1 Rd2+ Rg2 Rf2+ Kg1 R4e5 Bf1 Re4 Bh8 Nf6 Bg7 Nh5 Bf6 Qaa4 Ne2 Qa2 Rgg8 R4e5 Ng3 Re4 Qc1 Re1 Qce3 Ree2
2NNqB1b/2Qnr1PQ/k1r1b1K1/2n2Rp1/nb4Q1/2n5/Br3P2/1N3nB1 w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Nf6 h4 Ng8 g4 Bb7 g5 Ba6 h5 Bc8 h6 gxh6 b4 Na6 g6 Nb8 Ra3 Bd7 Rg3 Bc8 Rg5 hxg5 Ke2 Kd7 Ke3 h5 d4 a5 b6 c5 b5 e5 b7 Kc7 d6+ Kb6 d7 a4 d5 c4 d6 a3 Rh4 c3 Qe1 a2 Bd2 a1B Qe2 c2 Qc4 c1R Rh3 h4 Ne2 Ra7 Qc3 Ne7 Nd4 Nd5+ Ke2 e3 Kd3 e2 Ke4 e1N Kf5 e4 Qc2 e3 Bc4 e2 Bb4 Qe8 Nc6 Nd3 Ne7 e1N Ba2 Nb2 Rf3 h3 Ba3 Ka5 b6 h2 Qe4 h1N Qg4 Na4 Rf4 Na6 b8B N6c5 b7 Ndc3 Bc7+ Kb5 b8Q+ Ka6 Qa8 Bb2 Qe4 Ned3 Kf6 Ng3 d8N Rb7 d7 Ne5 Rf5 Nf1 Qh1 Ba1 Qh7 Rb2 Bb4 Rg8 Ba3 Rg7 Bb8 Nf3 Bh2 Ne5 Bg1 Rcc2 Ne6 Rc1 d8Q Bd7 Nc8 Re7 Nd4 Be6 Nc6 Ra7 Qd6 Be7+ Kg7 Ned7 Qdh2 Rc7 Nd8 Rc6 Qc7 Re1 Nb6 Re4 Nc8 Rf4 Re5 Rf7+ Kh6 Nd3 Rf5 Bb4 Kh5 Ba5 Bf8 Bb4 Kh6 N3c5 Qd1 N3e4 Bg7 Re2 Bf8 Bh8 g7 Nec3 Kg6 Rb2 Qg4 Re7+
R1nK3R/4nB2/q4Q2/3r1Q2/r1B1R2P/n3nrb1/q1Q1p1P1/2Nbnk1B w - - 0 1 illegal: Other
1n1b3q/4R3/n2R4/qNQ1BR2/N1P2p2/4r1rq/bq2P2n/1NkbKQ1Q w - - 0 1 legal: proof: g4 f5 a4 c5 f4 b5 axb5 h5 d4 cxd4 Bh3 e5 gxf5 exf4 Bg4 hxg4 h4 Kf7 b4 Kf6 b6 Ke5 h5 Ke4 h6 g5 b7 d5 b5 a5 f6 d3 c3 g3 f7 a4 b6 g2 h7 g4 Ra3 g3 Qd2 d4 Rh6 Na6 b8N Be6 b7 Be7 f8R Ba2 c4 Qa5 Rb3 a3 Nh3 g1N Rb5 g2 Rb4 Nf6 Qd1 d2+ Kf2 d3 Qf1 d1B Rb6 d2 Rg8 Nf3 Rb5 Nd7 Rf5 Bd8 Rg7 Nh2 Ng1 Re8 h8Q Rg8 Rgf7 Rg3 Nf3 Ra7 Nd4 Ra8 Nbc6 Ndb8 Ne6 Re3 Ncd4 Rg3 Kg1 Ke3 Nb5 Qb6 Qf6 Nd7 b8Q Nac5 Qb7 Nb8 Bb2 Bdb3 Rg6 d1Q Nf8 Qd2 Nd6 Bd1 Rd7 Bab3 Nb5 a2 Rfg5 a1Q Qf5 Qf6 Rdg7 Ra3 Ne6 Ba2 Re7 Nca6 Nc5+ Qe5 Rh5 Qa5 Rd6 Rb3 Bc3 Qb2 Na4 Ra3 Qfc8 Rb3 Rf5 Ra3 Rh7 Qh8 Be5 Rc3 Re7 Rd3 N1a3 Kd2 Kf2 Kc1 Qc5 Rc3 Ke1 Rce3+ Bc3 g1Q Qh1 Qg2 Nb1 Qb6 Bd4 Qgh3 Be5 Qa5+
Bq1N1R2/1n6/k1b2Q2/b2P1p2/1qqQ4/Rn1bP3/RBn4K/1nBr1Qr1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Na3 exf4 Nc2 Qd6 axb5 Qd7 b6 Qd6 b5 Qd8 Nb4 axb4 Kf2 Kd7 g4 h5 Kg2 c5 d4 f5 d6 f3+ Kh2 f2 e3 c4 b7 b3 b6 Kc6 g5 Kb5 d7 b2 g6 b1N g7 h3 Bd3 f1Q Be4 c3 Ra4 c2 Ne2 h4 Ra3 Ne7 g8Q Nd5 Ra6 Bb4 Ng1 Ba5 Qe6 Qc4 Qe5 Nc6 b8Q Rg8 Nf3 Rg1 Ra7 Ba6 Qe6 Ndb4 Qf4 Qb8 Qf6 Nd8 Ng5 Nb7 Qf3 Rd1 d8B Rg1 Ne6 Rd1 Bd2 c1N Qf1 Nb3 Bc1 Nc2 Rg1 Rd3 Rg2 Rd1 Re2 Qb4 Bc7 Qc4 Be5 Qb4 Kh1 h2 Nd8 Qc4 Kg2 h1B+ Kh2 h3 Rf2 Ne1 Ra2 Nc2 Bd6 Bf3 Bda3 Bh1 Bab2 Bf3 Kg3 h2 Bd5 h1Q Q4e5 Nd6 b7 Qh7 Ra3 Qe7 Kh2 Kb6 Qf4 Bb5 Q4h4 Be2 Bc6 Bd3 d5 Qee4 Qhf4 Qb4 Q4h4 Qec4 Qhh8 Qc8 b8R+ Nb7 Nf7 Qg8 Rf8 Re8 Nd8 Re6 Qe5 Rg6 Qef6 Rg1 Ra2 Qe6 Qhh4 Qc8 Qhf4 Qb8 Q4e5 Nd6 Ba8 Bc6 Qd4+ Kb5 Ra6 Nb7+ Qdf4 Bc7 R6a3 Ba5 Q4e5 Ka6 Qef4 Rg3 Q4d4 Rg1+
1Q3nr1/3n2rR/4PR2/r2PnbQ1/1q1pQ3/2N4q/1N1BR1rb/kq2K1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 a4 exf4 axb5 Ne7 d5 Ng8 c4 Ba6 b6 Bb7 Qd4 cxd4 c5 Nc6 Bh3 Nb8 c6 Nh6 c7 Ng8 Bf5 Ba6 Bc2 Bb7 Ba4 Bc8 Bc6 dxc6 e4 Kd7 b4 Kd6 h4 g5 h6 a5 h5 f5 h7 g4 h6 g3 b7 a4 b5 Kc5 b6 Kc4 e5 Kb3 Bd2 Kb2 Na3 g2 Nc2 f3 Bf4 f2+ Kd2 f1Q Ra3 c5 Rhh3 c4 Be3 f4 Na1 f3 Bf2 Qb1 Nc2 Bf5 c8N Ra7 e6 Qe7 Re3 a3 Be1 f2 Re2 f1Q Rf3 a2 Ne3 a1R Nd6 R1a5 Nd1+ Ka1 Nb2 Nd7 b8Q Ngf6 b7 Rg8 h8R Nh7 Nb5 Qb4+ Nc3 Bd6 Qd8 Bh2 b8Q Nhf8 h7 Rc7 Rf4 Qf3 Qg5 Qh3 Rf1 Rca7 Qe5 Rb7 Qe4 Rba7 Nf3 g1R Rff2 Rg2 Ng1 Bg4 Rf6 Bf5 Bf2 Rb7 Be3 Rc7 Nd1 Rca7 Ke1 Rb7 Bd2 Rba7 Na4 c3 Nb2 c2 Rf7 c1N Rf6 Rg6 Nc3 Rg7 Rg8 Ra8 h8Q Ng6 Rgf8 Rb8 R8f7 Rbg8 Qhh4 Ngf8 Qhg3 Qa2 Qb8 Nd3+ Kd1 N3e5 Ke1 Rg6 Rh7 R6g7 Nba4 Qc2 Nb2 Qb1+
Nn3q2/5q1P/1P2rb1Q/kr1Npn1r/8/3B1Q2/1K1RNBq1/B2bQ1rb w - - 0 1 legal: proof: f4 b5 b4 f5 c4 h5 e4 g5 a4 fxe4 axb5 Rh7 g4 Rh8 Ra3 d6 Rg3 gxf4 g5 d5 Rg4 hxg4 cxd5 Bf5 Qf3 Bd7 Qd1 Bc8 d4 Kd7 Kd2 c5 Kc2 Kc7 h4 Kb6 g6 a5 h5 g3 h6 e3 g7 g2 d6 a4 d5 e2 d7 e1R d6 c4 Ne2 g1Q Rh2 f3 Nbc3 f2 Bb2 a3 Ba1 a2 Kb2 Ra5 h7 Nh6 g8N Qg2 Nf6 Nf5 Ne8 Bb7 Nc7 Bg7 Qd2 e5 Qh6 Qf8 d8B Bf6 d7 Qf7 Be7 Re8 d8Q Bf3 Bf8 Re6 Qd3 Rd1 Qde3+ Rd4 Qd2 Rh4 Qe1 Rh5 Be7 Be4 Bf8 Bc2 Bd6 Bd1 Na8+ Kb7 b6 Ka6 b7 Rb5 Nd5 c3+ Kc1 c2 Kb2 c1R Bc5 Nc6 b8Q Qf8 Qc7 Nb8 Bd4 Qf7 Qcc3 Qf8 Ng1 Qf7 Bd3 f1B+ Bf2 Bfe2 Bc2 Bf3 Ne2 Be4 Qf3 Qf8 Kc3 Rb1 Bd3 Qf7 Bb2 a1Q Ndb6 Qa4 Ng3 Be2 Qf1 Qh1 Nd5 Qe8 Qfe3 Qf3 Bg1 Qf7 Ba1 Qa3+ Kc2 Qh1 Qh3 Bg4 Rd2 Rf1 Qe1 Bd1+ Kb1 Qf3 Bf2 Rg1 Ne2 Qg4 Qg7 Bh1 Qh6 Qgg7 Qf3 Qg2 Be4 Rc5 b5+ Ka5 b6 Qb4+ Ka2 Rb5 Bd3 Bb3+ Kb1 Qbf8 Kb2 Bd1+
q1q2BbR/4NQp1/k1b1n3/q1r1RK1n/P4R2/1B4Q1/3P2n1/1br1B1nQ w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qc2 f3 Kd1 f2 Qb3 Kd7 Kc2 Ra6 Kb2 Ra3 Qd1 Ra8 Kc2 Ke8 Nf3 h5 Na3 f5 Ng1 f4 Nc4 f3 Ne5 Bd6 Ng4 Bf4 gxf4 hxg4 Kd3 Kd7 Ke4 c5 a4 Kc7 h4 Kb6 e3 b3 h5 b2 d6 b1B+ Qc2 g3 f5 g2 d7 c4 h6 c3 h7 Na6 f6 Ba2 f7 Nc5+ Kf5 Ne6 f8B Nf6 e4 Nh5 e5 Ra5 Qd3 c2 Ne2 g1N Bb2 c1Q Ng3 Rc5 Rh4 Ka5 Qd5 b5 Bd4 b4 Bc4 f1Q Bb3 f2 Qh1 Ka6 Rf4 Qa5 d8Q Bd7 Qdh4 Bc6 Rb1 Qc3 Re1 Qg2 Q4h2 f1N Bf2 Rg8 h8R Qc4 Re2 Qc1 Be1 Ne3+ Kg6 Qf3 Nf5 Ng2 Ne7 Qd5 Qh4 Qdd8 Ree4 Qa8 Kf5 Qc2 Qg3 Qc3 Bd1 b3 Re2 b2 Bb3 Bd5 Re3 b1B+ Ree4 Nd8 e6 Bc6+ Nd5 Qc2 e7 Ne6 e8Q Qcc3 Qf7 Qc4 Be7 Rc8 Bf8 Qcb5 Kg4 Qbb7 Re5 Rc7 Ne7 Qbc8 Qe8 Bh7 Qg6 Bg8 Qf7 Bb1 Rf1 Rd7 Rf4 Rd3 Kf5 Rdc3+ Kg4 Rc2 Kf5 Rc1+
3QbN1k/3qBP1b/2R4R/PQ1q2rN/p2R1n1Q/r5nN/3nr2b/2K4n w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a6 b5 axb5 a3 Bh6 a4 Bf8 a5 Bh6 Bc4 Bg7 Bb3 Bf8 Ba4 bxa4 f4 Kf7 d4 Kg7 Kd2 h5 g4 c5 d6 b5 d5 e5 g5 b4 d7 b3 d6 e4 g6 e3+ Kd3 c4+ Kc3 b2 Kc2 c3 Qd5 e2 Bd2 e1R Nh3 Ne7 Qa2 Nbc6 Qd5 Re2 Qg2 Nb4+ Kd1 Nbd5 f6+ Kg8 f5 Nf4 Na3 b1B g7 c2+ Kc1 Bb7 Qe4 Bc6 f7+ Kh7 f6+ Nf5 Qb4 Ng3 g8R Bg7 Nf2 h3 Nc4 h4 Qb5 h2 Nb2 h3 Nbd3 Bh6 Rd1 h1N Bb4 h2 Nh3 Rb8 Rg5 Rg8 f8N+ Kh8 Rc5 Rg5 f7 Bg7 Ra3 Be5 Rcc3 Qc7 d8Q Be8 Rc6 Qd7 Rac3 Rc8 Ra6 Rc5 Rb6 Rd5 Rcc6 Rc5 Ba3 Rc3 Bc5 Ra3 Bb4 Qe6 d7 Qd5 Bd6 Ne4 Be7 Nd2 Ra6 Ng3 Rab6 h1N Ra6 Ng2 Ndf4 Bc7 Nh5 Nf4 Rab6 Nb3+ Kb2 Nd3+ Kc3 Rg4 Qc8 Qd6 Nf2 Nf1 Rc5 Rg5 Nh3 Qe6 Qa8 Bh2 Qe4 Nfg3 d8Q Qd7 Qh4 Nf4 Rf6 Ra2 Rcc6 c1Q+ Kb4 Ra3 Rh6+ Bh7 Rd2 Qb2 Rd4 Qa2 Kc3 Re6 Rc5 Qg2 Rc6 Nd2+ Kb2 Qgd5 Kc1 Re2
NKRBbQ2/1Pq2Q2/q3B1Qn/1B1P3R/b2p2n1/3qbr1r/1n3k2/n5R1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 d4 d6 c4 Kd7 c5 dxc5 Be3 Ke8 Bg5 Qd7 Bc1 Qd8 d5 Kf7 Nd2 Ke8 Nb3 Na6 Nd4 cxd4 Bf4 Nb8 Bd2 Ba6 Bc1 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 f4 h5 g4 e5+ Kc4 c5 f6 a4 f5 h3 b6 h2 Kb5 a3 f7 h4 b7 a2 f6 c4 g5 h3 g6 c3 g7 c2 Rb1 a1N Bc4 Nc6 b8R Nh6 g8B Bd7 Be2 Qc7 Bg5 c1Q Bc4 Qd2 Bb3 Ra3 Qc2+ Qd3+ Bc4 Be8 Ne2 Kf3 Nc3 e4 Rbg1 e3 Rc8 e2 Na4 e1N Ka6 Ne5 b5 Neg4 b6 Rb3 Qb1 Kf2 b7 Ba3 Ka7 Bc1 f8Q Be3 f7 Rc3 Rg3 Ra3 Rhg1 h1B Bb5 h2 Rh3 Bf3 Bd8 h1Q Rh5 Bd1 Qg7 Rc3 Nb6 Ba4 f8Q+ Qf3 Na8 Qf6 Qg6 Rh7 Qbb4 Rf7 Qfg7 Qfc6 Qe7 Rf3 Qef7 Rc1 Rgh1 Qf1 Qgf8 Nd3 Q7e7 Nb2 Be6 Qd3 Qef6 Rg1 Qf6f7 Rg3 Rb1 Rh3 Rg1 Qa5+ Kb8 Qaa6 Rg3 Qcc3 Rg1 Qc7+
1r6/rkb1R1Q1/3P1qnB/3P2qb/nK2BrQQ/1Br1R3/2rp3N/5r1R w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 g5 h4 gxh4 d4 c5 d5 d6 Na3 Be6 Nc2 Bf5 Nd4 cxd4 c5 Bg4 cxd6 Bc8 Kd2 Kd7 b4 h5 g4 a5 e4 f5 g5 d3 Kc3 h3 e5 a4 g6 d2 g7 a3 b6 h2 b7 a2 b5 f3 b6 f2 Qe2 f4 Qa6 h4 Nh3 f3 Kb3 Ra7 Ba3 Be7 Bd3 f1R Be4 f2 Ng1 h3 Re1 a1Q Qc4 Na6 b8R Nc5+ Kb4 Na4 b7 Bg5 Bb2 Ne7 g8Q Ng6 Nf3 Be3 Bd4 Qg5 Bb2 Bb6 Re3 Bc7 Qg7+ Kd8 e6 Rc1 Kb5 f1R Kb4 Rc3 e7+ Kd7 e8B+ Kd8 Nh4 Rf4 Nf3 Rc2 Bd4 Rhf8 Bc5 Qaf6 Ra8 Rh8 b8Q Rf8 Qb6 Rh8 Rb8 Rf8 Rb7 Bg4 Qbb5 Kc8 Qd4 Rc3 Qe2 Bh5 Bb5 Rc2 Bc4 Rh8 Bb3 Re8 Rd1 h1R Nh2 Rhf1 Qe1 Rc3 Qh4 Rd8 Rb1 Rfc1 Ra1 R1c2 Rh1 Rg8 Nf1 h2 Qc4 Bd8 Re7 Bc7 Qe2 Re8 Qeg4+ Kb7 Bd4 Rb8 Be5 Rf3 Bf4 Rf2 Rg1 h1R Nh2 Rf3 Rc1 Rhf1 Rd1 Qge5 Bh6 Rf4 Rc1 Qeg5 Rb1 R1f2 Rh1 Rf1
3n4/2BRPr2/n2p2Bn/1bqnr3/1P1K1BQb/3b4/N1N3b1/1k2rNQQ w - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 d4 cxd4 g4 h6 Ra3 h5 Rf3 fxg4 f5 h4 Rf2 h3 Rf4 exf4 Nxh3 Kf7 Ng1 Ke8 Kd2 Ke7 Kd3 Kf6 e4 Ke5 c4 g5 h4 a5 h5 d6 f6 a4 c5 f3 f7 f2 h6 g3 b6 g2 b7 a3 c6 g4 c7 a2 h7 a1N Rh5+ Bf5 c8Q g3 Qc7 Qe8 Qd8 Be7 f8Q Qc6 Qc2 Ra5 Nh3 g1N Qh6 g2 Qc8 Nb3 Ng5 Nh3 Na3 g1R Qb1 Na6 b8B Nbc5+ Kc4 d3 Bc7 d2 Nc2 d1B Bd3 Bg6 Qg4 f1B Rh4 Nf4 Nf3+ Kf6 Be3 Bde2 Kd4 Nd5 Nd2 Nb7 Bf4 Bg2 Nf1 Nd8 Qhh5 Bf5 e5+ Ke6 Rh1 Nh6 Qhh3 Rg8 h8N Rf8 Ng6 Bh4 Ne7 Rf7 Be4 Bb5 Rh2 Nf6 Nd5 Rh1 Nc3 Nd5 Na2 Rg1 Nfe3 Re1 Bd3 Bf3 Qg1 Bg2 Qg3 Bfe4 Nf1 Kf5 e6 Bg5 Be2 Bed3 Bh5 Be7 Qg7 Bh4 Bg6+ Kg4 e7 Kf3 Qh1 Kf2 Qc1 Ke2 Qe3+ Kd1 Qeg1 Bde4 Rh3 Bf5 Rc3 Bfd3 Rc4 Re3 Nc3+ Kc1 Na2+ Kb1 Rc5 Bbc4 Rb5 Re1 Rb7 Rb5 Ba5 Rc5 Rd7 Bb5 Qg8 Nf6 Bc7 Rce5 Qg7 Nd5 Qg8 Rf8 Qe6 Rf7 Qg4 Qc5+
rq3b1R/q4B2/R1N2r2/r1nQ1B2/2QR1q1p/2K1PbPr/2B2Q2/kq3n2 w - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 fxe5 c5 axb5 cxd4 Nd2 h4 Ne4 Bd6 Ng3 Ba3 Nh5 Bf8 g3 h3 Nf4 Qb6 Ng2 hxg2 Ra2 Qf6 Ra1 Qd8 h4 Nc6 h5 Nb8 Bg5 g6 Bh4 g5 Ra4 gxh4 Ra6 Rh6 Ra1 Rh8 Kd2 Ke7 b4 Ke6 c4 f5 b6 a5 h6 d5 c5 f4 c6 a4 b5 f3 h7 a3 c7 f2 b7 a2 b6 d3 Qb3 Ne7 Qc3 d4 Qc4+ Nd5 Nf3 g1Q Qc5 Nd7 b8R Bb7 c8B Ne3 Bg2 f1Q Qd5+ Kf5 Qc4 Ke4 e6 Nc5 e7 Qe8 Rd1 a1R Ne5+ Qf3 Bf1 R1a5 Nc6 Qf4 Bd7 Rg8 h8Q Rg6 Qh5 Rf6 Bfh3 Qc8 e8B Qd8 Bf7 Nf1+ Ke1 Qe8 Bdf5+ Ke3 Ra1 d2+ Kd1 Qd8 Kc2 d3+ Kc3 d1Q Ra2 d2 Bc2 Qdc7 Qhd5 Qb1 Bhf5 d1R Rc8 Qb8 Ra3 Be7 Rh8 Bf8 Ra4 Kf2 Ra2 Ke1 Ra3 Rd2 e3 Rh2 Ra4 Rh3 Rh2 Qa7 Rd2 Qgf2 Ra2 Qfb8 Rd4 Qff4 Ra1 Rb5 Ra6 Ra5 Bcd3 Kd1 Bde4+ Kc1 Bc2 Bc8 b7 Bd7 Bfd3 Bg4 Bf5 Qc8 b8Q Bf3 Qc7 Qcb8 Qe2 Qg4 Qf2 Qf4 Kc4 Kb2 Qc8 Ka1 Kc3 Q8b5 Qce6 Qbb7 Qc4 Qbc7 Qed5 Qcb8
R3q1bR/8/1P2n2P/q1n2Qb1/3p2q1/NB2kn1Q/1Qn3rN/1Rb1NKn1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 e4 Kf7 b4 Kf6 c4 Ke5 h4 d5 f6 a4 h5 f2+ Ke2 a3 f7 d3+ Kf3 Kd4 Kg2 g4 e5 g5 c5 f3+ Kh2 d2 c6 a2 b6 Qe8 b7 Be6 b5 Ba3 f8N Na6 b8Q Ne7 b6 Bc1 h6 Ng6 c7 Bg8 c8Q g3+ Kh3 g2 e6 g4+ Kh2 g3+ Kh3 Nc5 e7 Ke3 Ba6 f1Q Bc4 f2 Nd7 d4 Ne5 Nf8 Nef3 Qe1 Nh2 f1N Qf5 Nfe6 Ngf3 g1B Na3 g2 Qdc2 d1Q Qg3 Qa5 Bb3 Nd2 Ne1+ Nf3 Qb2 Qe2 Rb1 a1N Qh4 Nc2 Qhh5 Qd7 e8R Bf2 Rb8 g1N+ Kg2 Qe8 Qhh3 Qd1 Ra1 Bh4 Kf1 Bg5 Rd8 Rh7 Rb1 Rg7 Ra8 Ne2 Rg1 Rg6 Rg2 Ng1 Rg4 Bf6 Rf4 Rg2 Rg4 Be7 Rg7 Bg5 Rh7 Qf7 Rh8 Qe8 Qhg4 Ne5 Qh5 Qg4 Qh3+ Nef3
NQ1Q4/3N1qb1/B1rRqRbn/K6Q/Rn3P1p/4k1b1/1P1b3b/qbN5 w - - 0 1 legal: proof: c4 b5 e4 f5 a4 fxe4 axb5 g5 d3 d5 f3 dxc4 Qd2 g4 Qd1 g3 h4 a5 h5 Bd7 Be3 Be6 Kd2 Bd7 Bf2 gxf2 g4 Ra6 g5 Rg6 hxg6 Bc8 Kc3 Kd7 d4 Kd6 g7 Kd5 b6 e5 g6 c5 b7 h5 Bh3 f1B Qd3 a4 Nd2 e3 Rh2 a3 Bf5 e2 Rh3 e1B Qc2 e4 Qb1 h4 Qd3 a2 Rb1 a1Q Rh2 e3 Ne2 Qe7 Rd1 Na6 b8Q Qf7 Nc1 e2 Rf2 Nh6 g8R Nb4 g7 Bh3 Bd7 Bf5 Bb5 Bg6 Ba6 Bcf5 Qe3 Bb1 Qee8 Bd6 Rf8 Rh7 g8N Bh2 Rg2 Bf2 Rg4 e1Q Qe2 Bfg3 Nf6+ Kc6 Nd7 Kd5 Qee8 Qee6 Rf4 Qg7 R8f6 Qgf7 Ne4 Rg7 Nd6 Rg8 Nb5 Rh8 Qe7 Rc8 Qe8 Rc7 Rd3 Rc6 Nc7+ Kd6 Na8+ Kd5 Kd2 c3+ Kd1 c2+ Kd2 c4 Kc3 Qe5 Re4 Qee7 f4 Qee6 Ne2 c1B Qh8 Be3 Nc1 Nf5 Qh5 Bef2 Re2 Be3 Rdd2 Ke4 d5 Nh6 d6 Ng4 Rd5 Nh6 Red2 Ba7 Ra5 Ke3 Ra4 Bb6 Nc5 Bd8 d7 Be7 d8Q Bf8 Nd7 Bg7 Rd3+ Kf2 Kd4 c3 Rd1 c2 Rd3 Rd6+ Kc3 Rb6 Rd5 Ke3 Kc4 Rc6+ Kb5 Rd6 Ka5 Rc6 Na2 c1B Rd6 Bd2 Nc1 Rc7 Qg5 Rc3 Qh5 Rc6
R5K1/2n5/1n1q1P1r/1p1P1kB1/2N2b2/1Qqbbn2/3NbRQb/2bR1N1Q w - - 0 1 legal: proof: c4 a5 f4 f5 e4 fxe4 g4 h5 f5 b5 g5 Ra6 Be2 Rf6 gxf6 d5 b4 axb4 Bg4 hxg4 cxd5 Rh3 Ne2 Rh5 Ng1 Rh8 Ke2 Kd7 Ke3 c5 Kf4 g5+ Ke5 c4 a4 g3 d4 g2 h4 e3 a5 g4 h5 e2 f7 e1N h6 c3 f6 c2 h7 b3 d6 g3 a6 b2 a7 Bh6 a8R Na6 f8Q Nc7 Rh3 Bf4+ Kf5 e5 Kg6 Ke6 Kg7 e4 d5+ Kf5 d7 e3 Ne2 g1B Nd2 b1B Qe8 g2 Rf3 Bh2 Rf2 Ne7 Qg8 g1B Kf7 Nf3 Ng3+ Ke5 Qg4 e2 Ngf1 e1Q Qg2 Kf5 Kg7 Qe5 Kf7 Qd6 Kg7 Qe8 d8N Qec6 Nb7 Qc3 Na5 Bd7 Kf7 Nc8 Nac4 Nb6 Kg7 Be3 Kf7 Bhf4 Kg7 Bgh2 Kf7 Rg8 h8Q Rg6 Qh4 Rh6 Kg8 Bhg3 Qhh1 Bh2 Bb2 c1B Qb3 Bd3 Ba3 Bb2 Rd1 Bc1 Bc5 Be8 Bd4 Bh5 Be5 Bfg3 Bf4 Bg4 Bg5 Bgf4 Qg3 Ne5 Qgg1 Bge2 Qgg2 Nf3
bRn2b1q/2kBQq2/2r3NK/1PR2q1b/3Qbr2/1b1B1R2/1p1B1q1P/1Q6 w - - 0 1 illegal: No possible last move
8/1p2q2k/r3n1Rn/Q1NrqBBr/QB1n2R1/2P2K2/PQb5/2n1rnR1 w - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 f4 c5 e4 e6 Nc3 Be7 Nd5 Bf6 g5 cxd4 Ne3 Be7 Ng4 f5 exf5 Bf6 gxf6 hxg4 Ke2 Kf8 h4 d5 h5 g5 c3 g3 f7 Kg7 f8B+ Kh7 f6 e5 h6 g2 f5 b3 f7 e4 f6 e3 Rh3 d3+ Kf3 b2 Qe1 b1R Qh4 g4+ Kg3 d4 Bca3 e2 Kf2 d2 Bfc5 d1R f8R d3 f7 g3+ Kf3 e1Q Rh1 d2 Bd3+ Bf5 Qa4 Ra6 Bcb4 Qe5 Nh3 Nc6 Nf2 Qde7 Rg1 Nd8 Bc1 Ne6 Ne4 Re1 Nc5 d1N Ra8 Ne3 f8Q Nf1 Bg5 Rbd1 Qd8 Rd2 Bb1 Rd5 Qda5 Bc2 Rd8 Kg6 h7 Nh6 Rd6 Kg7 Rh1 Kg6 Rh4 g1N+ Kg2 Kg7 Rg4 Ne2 Kf3 g2 Rc6 Nc1 Rb6 Re8 h8Q+ Kg6 Qf8 Kh7 Qf4 Rh8 Qd2 Nf8 Rg6 g1N+ Kf2 Nge2 Kf3 Nb3 Qc1 Ne6 Qca3 Nbc1 Qb2 Bb3 Bf5 Bc2 Rb1 N2d4+ Kg2 Re2+ Kh3 Ng8 Qd8 Ncb3 Bf4 Nh2 Rd1 Nc1 Rh1 Nf1 Bg5 Re4 Qda5 Re1 Rh6+ Kg7 Kg2 Rh7 Rg1 Rh8 Rf6 Rh5 Rg6+ Kh7 Kf2 Nh6 Kg2 Nb5 Kf3 Nbd4+
1B4K1/Q6N/b1Np1n2/nR2q2q/n4Qqk/2R1rr1P/1rQRP3/1N4qr w - - 0 1 illegal: No possible last move
Q5BB/nK6/1r2n2p/N2P1R2/2Bp1Pnn/2qb3k/1b1QR1bn/3rQ2R w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 d4 d6 c4 Kd7 c5 dxc5 Be3 Ke8 Bg5 Qd7 Bc1 Qd8 d5 Kf7 Nd2 Ke8 Nb3 Na6 Nd4 cxd4 Bf4 Nb8 Bd2 Ba6 Bc1 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 f4 a5 g4 c5 b4 h6 b6 h3 b7 h2 b5 c4 b6 c3 Ba3 a4 Bb5 c2 Bc5 c1N Bd6 a3 Qe1 a2 Qd1 Nb3 Be8 Nc6 b8Q Nc5+ Kf3 Ba6 b7 Nge7 Ne2 Ng6 Qd2 Bd3 Rae1 a1N Nc1 Nc2 Re2 Qc7 Nb3 Ra1 Qa8 Ne3 b8Q Rd1 Qbb4 Na7 Na5 Ne6 Bb5 Qc3 Bc4 Be7 Bc7 Rb8 Bd8 Rb6 g5+ Kf7 f6 Ng4 Qb1 Ba3 Qb4 Bb2 Qe1 Kg8 f7+ Kg7 f8R Kh7 Rf5 e4+ Kg2 e3 Kf3 Kg7 Bf6+ Kh7 Bh8 Nh4+ Kg3 Kg6 Qd2 Ng2 Kf3 Kh5 g6+ Kh4 g7 Kh3 g8B Bc2 Bd3 Nh4+ Ke4 Bb1 Ree1 e2 Qe7 Nf6+ Ke5 Bc2 Bc4 Bd3 Reg1 e1N Rg2 Ng5 Re2 Ne6 Nc6 Ng4+ Kd6 Nef3 Kd7 Qc1 Na5 Qc2 Qeb4 Qc3 Qe1 Qa3 Qbd2 Qc3 Rg1 h1B Rf1 Nd8 Kc7 Nfh2 Rg1 Bg2 Rh1 Ra6 Kb8 Ne6 Kb7 Rb6+
Rbb2N2/1r3rK1/1Q6/1RN2PnB/8/QRnNkPbp/1p1qb1q1/3Q3b w - - 0 1 illegal: No possible last move, all moves rejected
2N1Q3/2r1np1k/b1qRP3/7q/1R1P1b2/brBbBQ1R/2pn2Q1/3b1B1K w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 Na3 gxh4 Nc4 exf4 e4 Ba3 Ne3 fxe3 Ke2 Bd6 Ke1 Bf8 b4 h5 d4 c5 g4 a5 e5 c4 g5 a4 b6 c3 g6 c2 d6 a3 b7 a2 b5 e2 Kf2 e1B+ Kg2 h3+ Kh2 h4 e6 Nc6 b8Q Ba6 g7 Nce7 b6 Bd2 b7 Nf6 g8R Ne4 Qe1 Ra7 Bb2 Qc8 Ne2 Bf4+ Qg3 Nd2 Rb1 a1Q Qa8 Qa5 b8B Qc6 Bc3 Rc7 Rb4 Qh5 Rg5 Rh6 Rd5 Rf6 Kg1 h2+ Kg2 Rh6 Qf3 Bd3 Ng3 h3+ Kf2 Rg6 Ne4 Rg3 Qg2 Bg7 d7+ Kf8 Qf3 Kg8 d8Q+ Bf8 Qe8 Kh7 Nd6 Ba6 Nc8 Bd3 Rg1 h1B Rd6 h2 Rg2 Rh3 Rg3 Bg2 Qb7 h1B Kg1 Ba6 Qd3+ Be4 Qf3 Bed3 Qa8 Rh2 Rh3 Re2 Qb7 Re1 Qa8 Rb1 Qb7 Rd7 Bc7 Rb3 Bd8 Rc7 Qa8 Nd5 Bg5 Ne7 Qg2 Bg3 Be3 Bf4 Qe2 Bf3 Qg2 Bd1 Kh1 Qc4 Qaf3 Qc6 Rd7 Nf5 Rd8 Bc5 Rd6 Ne7 Rc4 Ba3 Ra4 Qb6 Rb4 Qc6
1Qq3rR/4B3/1q4q1/r4RP1/1nB1QB1K/1bpn1RNb/3Pp2n/k4n1Q w - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ne2 g6 Ng1 g5 h4 Na6 g4 Bg7 f5 Nb8 Nc3 Nh6 Nce2 Rg8 Nf4 gxf4 g5 Bf6 g6 Bg5 hxg5 Rh8 Bg2 Ng8 Bh3 Qd6 Bf1 Qd8 Kf2 Kd7 b4 Kd6 b6 Kd5 b7 c5 b5 h5 b6 e5 g7 a5 f6 c3 f7 c4 f8R h4 Ra4 c2 Ne2 e3+ Kf3 h3 Ra2 a4 Ng1 a3 Be2 h2 Rb2 a2 Bd3 a1Q Ne2 e4+ Kg2 f3+ Kg3 f2 Rb3 f1N+ Kg2 Na6 b8B Qaf6 b7 Nb4 Be5 Qg6 b8Q Nf6 Bg3 Rg8 Qb6 Ra5 Rb1 Ng4 Qa7 Qdb6 Bb2 c1Q Bf4 Kc5 Ng3 e2 Kh3 e1N Rf7 e3 Qa8 e2 Bf6 Kb5 Rb3 Ka4 Qe4 Be6 Bc2 Ned3 Be7 Bd5 Rf5 Bf7 Rb2+ Ka3 Rb3+ Ka2 Kh4 Ka1 Bb1 Be6 Ba2 Bd7 Qe1 Ba4 Rc3 Bb3 Qd1 Nde5 Rf3 Ned3 Rg1 h1B Rg2 c3 Rh2 Qb1 Qe1 Bg2 Qd1 Rga8 g8Q Bh3 Qb8 Qc5 Qe1 Qc8 Qc1 Bc2 Bc4 Bb3 Rf8 Qb6 Rhf2 Ngh2 Rh8 Rd5 Qd1 Rd8 Qc1 Rg8 Qd1 Ra5 Qc1 Ne3 Qh1 Nef1 Qd4 Kb2 Bfd6 Nc1 Re3 Qbf5 Qde4 Qfe6 Rf5 Ncd3 Ref3 Qg6 Bf4 Ka1
BqR3nQ/3K1RQ1/k3b2B/3P2q1/3Pb2p/BQ2br1N/np1R4/1r1q2q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 b5 Kd4 c5+ Ke5 Kc7 a4 Kb6 f4 h5 a5+ Ka6 f6 h3 f5 b3 f7 b2 f6 c4 Na3 b1Q Ra2 h4 Qb3 b4 Nc2 h2 Ba3 Bh6 f8B Bg4 f7 Qd1 Nh3 Be3 Bh6 e6 d3 c3 Nd4 c2 f8Q c1Q Rd2 Qb1 Qg7 Qg5+ Kd6 e5 Be2 e4 Ne6 Nc6 Kd7 Rb8 Rf1 h1B Rf7 Qg1 Bf3 Qb2 Qbc3 b3 Qcf6 Nb4 Qe5 Ka7 a6 Na2 Qef6 Kb6 a7 Ka6 Qc3 Rb4 Qc2 Qbe5 Qd1 Qb8 a8R+ Ba7 Qb1 e3 Qba1 e2 Qd1 b2 Qb3 e1Q Be4 Qd1 Bf3 Qbb6 Rc8 Ra4 g3 Rc4 Bg2 Bh5 g4 Qf4 g5 Qbb8 Qg6 Rc1 Bf1 Rb1 Rff8 Be3 d4+ Be2 Qf6 Ne7 g6 Qg2 g7 Qfg5 g8Q Qg1 Qfg7 Bg2 Rf6 Be4 Q8h7 Rf8 Qhh8 Ng8 Rf2 Ka7 Rf6 B2f3 Bb5 Bg4 Bc6 Ka6 Rf3 Rf5 Ba8 Rf6 Rg3 Rf1 Rf3 Rf2 Rf5 Rf3 Rf7 Bxe6+
1n3N1Q/1K1n2B1/2rk1N1P/2n3bP/3b1Rp1/pr1b3q/2q2R2/bQQ1R2N w - - 0 1 illegal: No possible last move
3b1Q1r/1Q1R4/B1nQ1B1p/4B1n1/q4bKn/Rp1bRP2/3P1N2/n2q1k1r w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 f5 exf5 axb4 c4 gxh4 Na3 bxa3 cxd5 Qd6 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Kf3 Kd6 g4 Ke5 d6 Kd4 a5 e5 g5 b5 f6 c5 f7 h3 g6 e4+ Kf4 h6 d7 h2 f3 e3 a6 a2 a7 c4 g7 c3 Kg3 b4 Bb2 b3 Kg4 e2 Bh3 Kd3 Qf1 c2 Kh5 c1B Bd4 Be7 f8R Nf6+ Kh4 Ne4+ Rf6 Nc6 g8Q Qa5 d8B Qa4 Be5 Bf5 Qf8 Bca3 Bg4 Bb2 Nh3 Ng5 Rf7 Rc8 Qg2 e1N Qg3 Ke2 a8Q Bd3 Nf2 Ng2+ Kh5 Bc3 Qb7 Nh4 Rhc1 Bcb4 Rc3 h1Q Bh3 Ra8 Kg4 Qd1 Bf1+ Ke1 Qh2 Bbd6+ Qf4 Bf6 Rd7 Bc7 Qd4 Be7 Be2 Bed6 Bdf6 Bd8 Bh2 Bf4 Qdd6 Ba6 Re3 Bd3 Rb1 a1N Rb2 Ra5 Ra2 Rc5 Ra3 Rc1 Re4 Be3 Bhe5 Bf4 Re3 Bg6 Rc3 Rb1 Ba6 Bd3 Qg7 Kf1 Qgf8 Bc4 Re3 Bd3 Qb6 Rc1 Qb7 Qe1 Ne4 Kg2 Qf7 Qe2 Qg8 Rh1 Nf2 Kf1 Qgf8 Qd1
QN6/Q2r2K1/Rq1rP1p1/N1n1n2N/qn1PQ2R/2q2bbp/8/kq2R1B1 w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 h4 b4 g5 b3 f4 exf4 axb3 Nh6 b4 Ng8 b5 Na6 h5 Nb8 Bg2 g6 Be4 gxh5 g6 h4 g7 Qd6 Bd3 Qd8 Bg6 fxg6 Kf2 Ke7 Kf3 Kf6 Ke4 a5 b4 c5 d6 h5 d3 h3 b6 f3 e3 f2 b7 f1Q d7 c4 b5 a4 b6 c3 Qd2 h4 Nf3 a3 Kf4 c2 e4 h2 Qe1 h3 Nc3 a2 Rg1 h1N Ne2 Na6 b8Q Bb7 Be3 c1Q Ng3 Ra7 Qe2 Ne7 g8R Nf2 Nd2 Nc5 Nb3 Qc3 Na5 Qb1 Re1 Ng4 Bg1 Nc6 e5+ Ke6 d4 Kd5 e6 Nb4 Qc2 Ne5 Nh5 Bd6 Qd3 Bc6 b7 Qb6 Kg5 Ra6 Kf6 Rh7 d8Q Rd7 Rh8 Bc7 Nb3 Bd6 Qe4+ Kc4 Qa7 Bd5 Qh4 Bf3 b8N Kd3 Qc8 Kc2 Na5 Kb2 Rh7 Qbc2 Qc6 Qa4 Qhe4 Bc7 Qca8 Bd6 Rac1 a1Q Rcd1 Q1a2 Ra1 Qb1 Rh8 Nf7 Kg7 Bg3 Rf8 Ne5+ Rf7 Rd5 Rf4 Rd8 Rh4 Rd6 Qf7 Ra7 Ra3 Rad7 Ra1 Rd8 Qfa7 R8d7+ Kf8 Qbc1 Nb3 Qac6 Ra6 Qb1 Na5 Qa4 Kg8 Ka1 Kf8 Rd8+ Kg7 R8d7+
n3k1rb/3r2pN/2R2pq1/b3N1P1/1Q1R4/n2q1r2/1Q3QbP/1KNR1B1r w - - 0 1 illegal: Other
2rb1Q2/Rn1P4/2kr2qp/2NNB3/1q1rQ1P1/1p2qQb1/2r1B2n/K4N1B w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 a5 b4 axb4 a4 e5 f4 gxf4 h3 Be6 g5 Bg4 Ra3 e4 Rf3 exf3 hxg4 Qd6 Bh3 Qf6 Bf1 Qd8 d4 Kd7 Kd2 f5 Kc2 b5 Kb2 c5 e4 h6 a5 b3 a6 b4 a7 c4 d6 f2 d5 f3 g6 c3+ Ka1 b2+ Ka2 f4 g7 b3+ Ka3 c2 e5 Qe7 Bd3 f1R Rh5 f2 Bh7 f3 Qe2 Nf6 g8Q Ne4 Nh3 Ng5 Nd2 b1Q Bd3 Nc6 Nf4 Nd8 Bb2 Rc1 Nf1 Rc8 a8B Nb7 Bd4 Bg7 Qf8 Bf6 Qe3 Qe8 Be2 Bd8 Ba1 Rc4 Qe4 Rd4 e6+ Kc8 d7+ Kc7 e7 Rg8 Nh2 f1R d6+ Kb6 Qe3 f2 Nd5+ Kc6 Qef3 Rfd1 Nf1 Qg6 e8Q Qe4 Q3f4 Qe3 Qee4 Nf3 Qf4f5 Nh2 Qff3 Rh8 Rf5 R1d2 Rf7 Rcd1 Bb2 c1B Rg7 Rc2 Rh7 Bd2 Bc3 Rc4 Be5 Rd4 Rg7 Be1 Rf7 Rcc1 Re7 Qbd3 Kb2 Rc3 Rh7 Rd2+ Ka1 Rcc2 Ng3 f1Q Rf7 Qh1 Nf1 Qc4 Re7 Qb4 Rh7 Bg5 Rg7 Bg3 d8N+ Kc5 Ne6+ Kc6 Nc5 Bd8 d7 Qg2 Rg8 Qh3 Rg5 Qh5 Rf5 R2d3 Rf4 Qg6 Rf6+ Kb5 Ra6 Rg8 Ra7 Kc6 Q8f4 Bb6 Qff5 Rc8 Qf8 Bd8 Nc3+ Kb6 Q3f7 Na5 Qef5 Rd6 Bh1 R3d5 Qe4 Rd4 Qff3 Nb7 Nd5+ Kc6
BKn4Q/1pb1r2R/3b1Qpq/r1NPQ3/1B4R1/2B1b3/P1r1k1r1/1n1b3R w - - 0 1 illegal: No possible last move, all moves rejected
2qr2n1/2B4B/1brnP2Q/3q2Rp/Rr1Q3K/r1P5/NQ1r1p1R/1B1kq3 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Nd2 Bh6 Ndf3 gxf3 g4 Bb7 h3 Bd5 g5 Be6 Bg2 Bg7 Bf1 Bg4 hxg4 Bf8 Kf2 Ke7 e4 Kd6 b4 Ke5 c3 d5 g6 h5 g7 a5 b6 f5 g5 a4 g6 a3 b5 d3 b7 d4 b6 d2 Nh3 d3 Bb2 a2 Rg1 Ra4 Rg3 Qc8 Bc1 Rb4 Bb2 Nd7 b8R Ndf6 b7 Ne8 Ba3 Nd6 Rg5 Be7 Qa4 d1Q Ng1 d2 Bd3 Bd8 Ne2 Qb3 Qd7 d1R Nc1 Qd5 Bb1 Rdd4 Ra8 Bb6 b8Q Rh6 Ra4 Rd2+ Kf1 f2 Kg2 f1R+ Kh3 f3 Kh4 Kf4 e5 f2 e6 Rfd1 Qd8 f1Q Qf6 Ke3+ Qd4+ Kf3 Qb7 f4 Qb8 Ne7 g8Q Rh7 Qgg7 Ng8 Qh6 Rc7 g7 Rc6 Qb7 Qg1 Qb8 Qe3 Qb7 Kf2 Qb8 Ke1 Qb7 Ne7 g8B f3 Bgh7 f2 Qb8 Ng8 Qb7 Rb5 Bb4 Qee5 Ba5 Rb4 Qb8 Bc5 Bc7 Bb6 Bbd3 Qe2 Rb1 a1R Na2 Qf1 Bde4 Ke2 Rc1 Qe1 Bc2 Rd3 Bb1 R1d2 Qb7 Rf3 Rd1 Rf8 Qb8 Rd8 Qb7 Rc2 Rd3 Rd2 Rh3 Kd1 Rh2 Nb5 Qa6 Nd6 Qb5 Rbc4 Qb2 Rb4 Nc1 Ra3 Na2 Re8 Bbe4 Rf8 Bb1 Rd8
6R1/q3r1K1/5N1n/3Pp2P/2Nkb1Q1/BR1nn1Np/2Q1b1Rq/bq3bQ1 w - - 0 1 illegal: No proof kernel
KQ3rR1/PRr1b1p1/b2N2pq/4P3/1n3BrQ/1BR1b1Q1/1b1B4/1k2bb2 w - - 0 1 legal: proof: c4 b5 f4 a5 g4 e5 e4 d5 b4 Qe7 g5 Qd8 g6 hxg6 Na3 Nd7 exd5 e4 Nc2 bxc4 b5 Ne5 Nb4 axb4 fxe5 Qd6 Qh5 Qe7 Qd1 Qd8 Ke2 Ke7 Ke3 c5 h4 f5 a4 b3 d4 c3 b6 b2 d6+ Ke6 d5+ Kf7 b7 b1B b8Q c4 Kd4 e3 Kc5 e2 Kc6 e1B d7 c2 d6 Ke6 a5 c3 h5 f4 h6 Kf5 a6 Ke4 h7 f3 a7 f2 Bf4 c1B Nh3 c2 Ra3 Qg5 d8B Be3 d7 c1B Bc4 f1R Qdb3 Nf6 Ba5 Bd3 d8Q Ba6 Bd2 Nd5 Nf2+ Kd4 Rh2 Rg1 Ne4 Be7 Nd6 Rf8 h8R Bb2 Rg8 Qh6 Rh3 Rf7 Ra1 Rg5 Rb1 Rg4 Qa3 Bf1 Bb3 Kd3 Rg3 Bf8 Qh4 Be7 Rh3 Nb4+ Kc7 Bc4 Kb7 Bb5 Qc7 Rc8 Qb8 Rff8 Ka8 Rc2 Rc1 Rcc8 Rc7 Ba6 Rb7 Rc7 Bf7+ Kc2 Bb3+ Kb1 Rf3 Bg1 Rc3 Qh5 Qg3 Be3 Qa4 Nc2 Qe4 Qh6 Qh1 Nb4 Qhh2 Ba1 Qhh4 Bb2
4n1K1/2BRR2Q/PpbN1N2/2nn4/b4q2/Q3R1Q1/1nPb3p/1r1kNqb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 c5 d4 cxd4 e5 g6 Na3 f6 exf6 Kf7 Nb1 Ke6 f7 Kd6 Na3 Kd5 Nb1 Kc6 g4 Kb6 h4 Bh6 f5 Bg5 f6 Qe8 Bh3 Bh6 g5 Bf8 Bf5 gxf5 Kf2 Qd8 Ke1 Ra3 g6 Rg3 Kf2 Kc6 Ke1 Rg5 hxg5 Bh6 Rh3 Bg7 Rh1 Bf8 Ke2 Kb5 Kf3 Kc4 Kf4 h5 Ke5 d5 a4 d3 g7 h4 a5 b6 a6 f4 g6 b3 Nf3 d4 Rg1 h3 Na3+ Kc3 Re1 d2 Rh1 d3 Rh2 b2 Nc4 b1N Qg1 d1N Qg3 d2 Na5 Bd7 Qf2 Qc7+ Kd5 e5 Qg3 e4 Nc4 e3 Ra5 e2 Qf2 e1B Qg3 Bc5 f8Q Ba4 Ke6 Nb2 f7 d1B Re2 Nf6 g8Q Nbd7 g7 Ne8 Qd6 Rh5 f8R Rf5 Rf7 h2 Qdf8 Bg1 Qh7 Rd5 g8N Rd2 Nd4+ f3 Rae5 Rd3 R2e4 f2 Nf3 f1Q Bf4 Be2 Rd4 Rd1 Nf6 Bd3 Qc5 Be4 Re7 Bec6 Kf7 Rc1 Kg8 Qd6 Qb5 Nc5 Re2 Qe5 Rdd7 Qe4 Bc7 Qf4 R2e4 Rd1 Nd6 Rc1 Nd4+ Kd2 Qb4+ Nc3 Qa3 Kd1 Nf3 Rb1 Re3 Bd2 Ne1 Nd5
3NRbb1/pqPQ1B2/1q1rKPQR/2q5/8/3bR1b1/nN1k1pn1/3q1QN1 w - - 0 1 illegal: No possible last move, all moves rejected
2q2b2/1nN1RK1B/n3pr2/1P1rp2R/1QpQb1b1/1RQ3r1/1P6/2N1qk1N w - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f6 e5 fxe5 axb5 Bh6 Qb3 Bg7 Qd1 Bf8 g4 h6 f4 Bb7 d3 Ba6 Be3 Bc8 Bf2 Nd7 Bh4 gxf4 g5 Nb8 g6 Bb7 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 a5 g7 a4 d4+ Kb4 h5 g4 d6 g3 Kd5 f3 h6 a3 d7 g2 Ke6 f2 d5 a2 d6 Ra3 h7 Bb7 Rh5 Be4 Ne2 Kc4 Qd2 g1R Nbc3 Rg6+ Kf7 Na6 Nd1 Rag3 Qb4+ Kd3 Bg2 f1B Nf2+ Ke3 Nc1 Nf6 g8R Be2 Rg7 Bg4 Nh1 Qc8 d8N Nd7 Ne6 Ndc5 d7 Nb7 d8Q c5 Nc7 Rg8 h8Q c4 Qdd6 e6 Qd4+ Kf4 Bf1 Kf3 Bd3 Kg2 Qh6 Rh8 Qhe3 Rh7 Bb1 Kf1 Qec3 Rf6+ Kg8 Rf2 Re7 Rd2 Bc2 Rh6 Kf7 Rdd3 Qdc5 Rd5 Q5d4 Bg2 Bh7 Be4 Rb1 a1Q Rh3 Nac5 Rh5 Qa5 Ra1 Na6 Ra3 Rg6 Rb3 Qa1 Na2 Qe1 Nc1 Rf6+
Qrn1BN1k/b7/nN3P1n/1QbQ1qR1/3KP1Np/r1p5/p6n/n2BB3 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 a4 dxc4 axb5 f5 d5 fxg4 b4 g5 h3 g3 Rh2 g4 Rh1 g2 Ra2 g3 Rd2 Bf5 Rd4 Bg4 hxg4 exd4 Kd2 Kf7 e4 Kg7 f4 h5 f5 a5 g5 c5 d6 c3+ Kd3 c2 g6 a4 b6 h4 b5 a3 d7 a2 b7 Be7 f6+ Kf8 b6 Ra3+ Nc3 Nh6 g7+ Kg8 Nf3 g1N Bd2 g2 Be2 Na6 b8N Qc8 Ne5 Nf3 b7 g1B Ng4 Nh2 Be1 c1N+ Kc4 d3 d8Q+ Kh7 Nd5 d2 Nd7 Nb3 b8Q Na1 N5b6 Rf8 g8B+ Kh8 Qa4 d1N Bf7 Nc3 Qb5 Nd5 Be8 Bd6 Qa7 Ne7 Qa8 Bb8 Qd5 Ba7 Bd1 Rg8 Nf8 Qf5 Qb8 Nc8 Qba8 Be3 Rg1 Bf2 Qe5 Bd4 Kd5 c4 Rg2 c3 Kc4 Bc5 Qed5 Bb4 Kd4 Bd6 Nf2 Bb4 Rg5 Be7 Ng4 Bc5+ Kc4 Rg7 Kd3 Rb7 Kc4 Rb8 Kd3 Be7 Kd4 Bc5+
rQ5B/BR1NRK2/4Pp1r/2rk4/2b1ppQP/1qQ1B3/2R3n1/rqb4n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 b4 exf4 a4 c6 axb5 Bd6 b6 Be7 b7 Bf8 e4 d5 b5 Kd7 b6 Ne7 e5 Ke8 Nc3 Ng8 Bb5 cxb5 Ne4 dxe4 Kf2 Kd7 c4 Ke6 h4 g5 d4 a5 c5 b4 c6 a4 h6 a3 h7 a2 c7 b3 Rb1 a1R Qg4+ Kd5 e6 b2 Rh2 Nc6 b8B Ne5 b7 Be7 Ba7 Nh6 b8Q Ng6 Nf3 Ba3 Be3 Ba6 c8Q Nf5 Qc3 Bc4 Ne5 Qb6 Nd7 Qb3 Rg2 Rc8 h8B Ng3 Rh2 Rc5 Kg2 f6 Kh3 Ne5 Rc2 Nf3 Qc8 Kd6 d5 Ne1 Qd8 Ng2 Qe8 Kc7 d6+ Kc6 Qb8 Kd5 Ne5 Nh1 d7 Ra5 d8R+ Bd6 Rbc1 b1Q Nd7 Ba3 Re8 Rc5 Re7 Bb2 Qg3 Ba3 Kg4 Bb2 Kh5 g4 Qf3 g3 Kg6 Ba3 Re1 Bc1 Rg1 Ne1 Qg4 g2 Rf1 g1R Kf7 Rg3 Rff2 Ng2 Rb2 Rca5 Rfc2 Rc5 Qe2 Rg6 Qg4 Qa3 Rb4 Rh6 Rb7 Qab3
Qb2n3/3rRRR1/rr6/P5QK/ppPQ1B1r/2Bn2rB/pNb5/k3r3 w - - 0 1 illegal: No proof kernel
r5N1/5R1q/p1p1B1br/R4pb1/3QQB1k/1P3P2/2RKQp1B/q2qn2n w - - 0 1 legal: proof: c4 e5 g4 b5 a4 g5 axb5 e4 Nc3 e3 f3 d5 cxd5 Bxg4 Ne4 Bc8 Nf2 g4 Qa4 exf2+ Kd1 g3 Kc2 Bg7 Kd3 Bg4 Qd1 Bf8 h3 Bxh3 Kc2 Bc8 d4 Ke7 e4 Kf6 e5+ Kg6 e6 f5 e7 h5 e8Q+ Kf6 d6 a6 b6 c6 d7 h4 b3 h3 d5 h2 b7 g2 d6 Be7 Qe2 Rh6 Kd2 Kg5 Ra5 Qc7 d8R Kh4 d7 Nf6 Nh3 g1Q Ng5 Nh5 Ne4 Ng3 Nf6 Qe5 Ng8 Qa1 Qg6 Qb1 Qe8 Bg5+ Q8e3 Qa1 Rf8 Qb1 d8Q Bd7 Rf7 Be8 Qf6 Nd7 b8B Nc5 Qa1 Nd3 Qd4+ Kh5 Bf4 Ne1 Qee4 Kh4 Ba3 Qa1 Bd6 Qb1 Q2e3 Qa1 Bc4 Qf1 Rg1 h1Q Be6 Qh2 Qe2 Nh1 Rf6 Bg6 Rf7 Ng2 Bb8 Qfb1 Rc1 Ne1 Rc2 Kh5 Be3 Qc7 Bf4 Kh4 Rf6 Qg7 Rf7 Qh7 Be3+ Kh5 Bg3 Bh4 Bh2 Bg5 Bef4 Kh4 Qdd5 Bf6 Qdd3 Bg5 Qdd4 Qd1+
1qQ2q1B/r2nQrPp/B1B2P2/N2R4/1n3p2/1K1b2R1/1p1pRr2/2kbQ3 w - - 0 1 illegal: No possible last move, all moves rejected
3kq1r1/Pp1pb1B1/1R1pr2K/N5p1/1bQ1nN2/1N3PQR/3R3Q/q1n4r w - - 0 1 illegal: No proof kernel forced: wxLB
3Rb1rK/3pPN1b/b2b1k1r/R2P1q2/p3QQ1n/2p1N1Nr/3p1B2/1RQ5 w - - 0 1 legal: proof: c4 e5 e4 g5 d4 f5 a4 Nc6 h4 gxh4 Be2 Nb4 Bf3 Nd5 cxd5 exd4 e5 b5 Be4 fxe4 axb5 Bc5 Qa4 Ba3 Qd1 Bf8 Ke2 Ke7 b4 a5 g4 h5 f4 c5 b6 e3 Kf3 d3 Ke4 h3 Kf5 h4 Kg6 c4 g5 c3 b5 h2 e6 h3 f5 e2 b7 e1R b8Q Bh6 f6+ Ke8 f7+ Ke7 f8R Ra7 b6 Re3 b7 Rf3 Nd2 Ra8 Nc4 d2 Ne2 Bg7 Qe5 Nh6 b8Q Ba6 Qe4 Nf5 Qbf4 Be5 Ba3+ Bd6 Bc5 Nh4+ Kg7 Rh6 g6 Qc8 Rf1 h1B Bf2 h2 Ne3 Rh3 Ng3 Bf3 Qdc2 Bfe2 Rfb1 Bh5 Qc1 Rb8 Rb5 a4 Rab1 Qe8 Ra5 Rc8 Qg2 h1B Kg8 Be5 g7 Qg6 Qgf3 Qg5 Qg2 Bg6 Qgf3 Bh7+ Kh8 Qf5 Q3e4 Bd6 Rg8 Kf6 e7 Ra8 Re8 Bf3 Rg8 Rg6 Rc8 Bh5 g8N+ Kf7 Nh6+ Kf6 Nf7 Rh6 Rg8 Rf8 Ng5 Rf7 Rc8 Rg7 Rd8 Be8 Nf7 Rg8#
3B1k1r/1p3rR1/2q1PQR1/2n1p1NQ/1n4PR/2nn2p1/b2K1Q1p/2N1q2N w - - 0 1 illegal: No proof kernel
Q1r2b2/rR6/1p3Np1/PQ4B1/2n3n1/PnRppp2/q3R3/kb1QN1NK w - - 0 1 legal: proof: d4 h5 b4 a5 bxa5 e5 f4 h4 e4 h3 Bc4 exf4 Bd5 Na6 e5 Nb8 Be4 c6 d5 cxd5 gxh3 dxe4 h4 Nf6 h5 Ng8 Kf2 Ke7 Kg2 Ke6 c4 f5 h4 d5 h6 b6 h5 g6 a3 d4 c5 Kd5 c6 Kc4 e6 d3 h7 Nf6 e7 Qd5 e8N Ra7 h6 Be6 c7 Na6 c8R+ Nc5 Nd2+ Kc3 Ra2 Ng4 Nf6 Rg8 Rh2 f3+ Kh1 f2 h8Q f1N h7 f4 Ndf3 Nfe3 Ne1 f3 Rae2 Nc4 Bg5 e3 Rb8 Nb3 Rb7 Bf7 Qg7 Be6 Qd7 Bf7 h8Q Be6 Nc2 Kb2 Qb5 Ka2 Qd2 Bf7 Ne1+ Ka1 Qc2 Bg7 Rh4 Rc8 Rh7 Bh6 Rg7 Be6 Rgc7 Bf8 Rc6 Qd4 Rcc7 Qb2 Qd2 Qa2 Rc5 Nb2 Rc3 Nc4 Qd1+ Nc1 Qh2 Bd7 Qf5 Ba4 Qb5 Bc2 Qb8 Bb1 Qa8 Nb3
rnnrbN2/qQR1pBrN/1R6/2qP1K2/5Q1q/3R2b1/1QrNP3/b5kr w - - 0 1 legal: proof: g4 f5 c4 d5 a4 dxc4 b3 h5 Ba3 b5 axb5 h4 Bd6 fxg4 Bg3 hxg3 d4 Kd7 Kd2 Kd6 Ke3 Kd5 Kf4 g5+ Ke3 a5 f4 c5 h4 a4 b4 c3 f5 g2 h5 a3 b6 g3 h6 c2 b7 c1Q+ Nd2 g4 Kf4 a2 f6 c4 f7 c3 b5 c2 h7 Bd7 b6 Nf6 Rh2 Bg7 f8N Ne4 Rh1 Nd6 Ne6 Be8 Rh2 Nc8 Nf3 g1Q Kf5 g2 Nf8 g3 Ng5 Be5 Rh3 Qc7 Qe1 Qh1 Qf2 g1R Qf4 g2 Rd3 Qh4 Rb1 Rg8 h8Q a1B Ngh7 Rh1 Rb4 g1R Bh3 R1g2 Rc4 R2g7 Bg4 Qg1 Bh5 c1R Rc2 Qd6 Rc7 Qc5 Bg6 Rc2 Bh5 Nc6 b8Q Qe3 Qa7 Nb8 b7 Bd6 Qh6 Bg3 Qf4 Na6 b8R Qf2 Rb6 Nb8 Ne4 Kc4+ d5 Qg1 Rf3 Kd4 Qb7 Qe3 Bf7 Qea3 Qh6 Qa6 Nd2 Qa7 Rf4+ Ke3 Rd4+ Kf2 Qf4+ Kg1 Rd3 Rg6 Qg7 Rd6 Qf6 Rd8 Qb2 Rg7
2br1B2/1rb1P1RR/BQ1Nb1r1/r3pr2/1qQ1Q3/3n1r1n/R1K1P3/4B1nk w - - 0 1 illegal: No proof kernel
1qQq3q/R4Rr1/Q1b4Q/PqR2q1r/1np2qb1/8/1BPN1b1n/3KNNk1 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 h3 Bg2 hxg2 Bg5 fxg6 Be3 g5 Bc1 g4 f4 Kf7 h4 Kg6 a4 Kh5 e4 d5 f5 c5 f6 b5 e6 g5 a5 b3 e5 b2 f7 b4 e7 c4 e8R b3 e6 d4 e7 d3 Rh3 d2+ Ke2 g3 Qe1 Kg4 h5 d1B+ Ke3 Nf6 h6 Bd7 Kd2 Na6 h7 Nb4 Nc3 b1Q Na2 b2 Qf2 Bc6+ Ke1 Ra7 Nf3 g1Q+ Qf1 g2 Rh2 Kg3 Rh5 g4 Nh2 Qh1 Rc5 g1Q Nc3 Bg7 f8N Qgd4 Ne6 Qf4 Nd4 Qhd5 Qe2 Qdf5 Qe6 Kg2 Nf1 g3 Ne4 Kg1 Ned2 g2 Rf8 Rc7 e8Q Ng4 Rf7 Nh2 Qg6 Bg4 N4f3+ Kh1 Qf8 g1Q Kd1 Bd4 Qfh6 Bf2 Ra3 Qa1 Re3 b1Q Ree7 Qgg3 Qf6 Qae5 Qe6 Qb3 Bb2 Qa4 Qc8 Qb5 Qa6 Ra7 Rd7 Qeb8 Rde7 Qh4 Rc7 Rg8 h8Q Rg5 Qe8 Rh5 Qee6 Qhf6 Qec8 Qfh8 Rce7 Bh3 Ne1 Kg1 Rf8 Rd7 Rh7 Rg7 Rf7 Rgg5 Ra7 Rg8 Rhb7 Rg7 Rf7 Bg4+
1r1R4/KB2Pq1k/1pRQ4/4B3/4qr2/1B1QRqn1/1PN1qbr1/nn1Q1bn1 w - - 0 1 illegal: No proof kernel
bb2r1K1/PpnB1n2/1nNr2n1/7b/kN5b/N1Qq1RB1/1P2B2q/Q3Q2r w - - 0 1 illegal: Other
3B2R1/Q1Qq2p1/2N1Rp1P/rk6/4R3/q1r1rbPn/2qnn1Kb/bBB1Q3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Na3 b5 axb5 h5 Nc4 h4 Ne3 h3 Ng2 hxg2 Kf2 a5 b4 d5 c4 Kd7 e4 a4 h4 d3 c5 a3 b6 Kc6 e5 d2 h5 f3 b7 d4 h6 d3 e6 a2 e7 Nf6 e8R Bg4 Ba3 Ne4+ Ke3 f2 Re6+ Kb5 c6 f6 c7 Qe7 c8Q Nc6 b8B Nd4 Bc1 Ne2 Qe1 d1Q Qc7 d2 Rh4 Qc2 Nf3 d1Q Ne5 g1N Nc6 Bf3 Ba7 Qd5 Bb6 Nd2 Rhe4 Ra5 Bh3 f1R Bf5 Qdd8 Qa7 Qc8 Bd8 Qcd7 Rb1 a1B Rb2 Ka4 b5+ Qb4 b6 Kb5 b7 Nh3 Ra2 Bd6 Ra3 Re8 Rc3 Qa3 b8Q+ Qb7 Qc8 Qd7 Qcc7 Rh1 Rd3 Bc5+ Rd4 Nhg1 Kf2 Rh4 Rde3 Rf4 Rdd6 Rc4 Re4 Rc3 Rde6 Bg4 Kg2 Nh3 Rd3 Bg1 Rdd6 Bh2 Bg6 Rf8 Re8 Rf7 Rg8 Re7 Bh7 Re5 Re6 Bh5 Rg4 Ree3 Bg6 Qca2 Bb1 Qc2 Rge4 Bf3+
1r2bN2/k1B5/3Nrp1r/N1K2Pr1/1P4Q1/npQ1r1qn/6Bb/qR1Q2Bq w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 Ra2 dxe4 Rb2 c5 a4 c4 Rb3 cxb3 axb5 Bg7 Be2 Bh6 Bf1 Bf8 Ke2 Kd7 Ke3 Kc7 f4 Kb6 c4 h5 g4 e5 d4 a5 f5 h3 d5 h4 g5 h2 c5+ Ka7 d6 a4 g6 h3 g7 f6 d7 a3 c6 a2 c7 a1Q Qe2 Nh6 g8N Ng4+ Kd2 e3+ Kd3 e4+ Kc4 Rh5 Na3 Nf2 Bb2 Nc6 Nf3 Nd4 Ng5 Rb8 Bg2 Bd6 Qg4 e2 Ne7 e1R Nh7 e3 Nf8 e2 Rg1 Bb7 c8Q h1R Qc6 Qc8 d8Q h2 Qd7 Nc2 Bd4+ Bc5 Kd5 Qc7 Nc4 Qg3 Na5 Na3 Rf1 Bb6 Qd8 Bc8 Qc3 Rg5 Bc5 Bd7 Nc8+ Ka8 Be3 Be8 Qd7 Rd1+ Kc6 Rd3 Rb1 e1R Bd4 Re6+ Kd5 Bc7 Kc5+ Qf3 Be3 Be5 Qdd4 Bg3 Nd6 Ka7 Qd5 Be5 Bd4 Qe3 Qdf3 Qf4 Qd1 Rh3 Be3 Re1 Bd4 h1Q Be3 Rh6 Bd4 Nh3 Bg1 Rb7 b6+ Ka8 Nac4 Re3 Na5 Qf3 Qd5 Bh2 Qd1 Rbh7 b7+ Ka7 Qb2 Qg3 b8B+ Ka6 Qbc1 Rb7 Bc7 Ka7 Qc3 Rb8
3qqK2/1b1N1Qn1/2nR1q2/2N2p2/r1BNR2Q/b1rp1P1Q/1r1qP3/2kq3R w - - 0 1 illegal: No possible last move, all moves rejected
bn3q1b/4pq1q/rBpNRq2/rQ1Q4/1KP4k/rBBn2NP/7Q/2qN4 w - - 0 1 legal: proof: e4 h5 g4 hxg4 b4 f5 a3 d5 Ra2 dxe4 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Qd3 Bh3 Qd4 Bf1 Qd8 f4 Kf7 d4 Kg6 Kd2 Kh5 Kc3 g5 b6 a5 b5 c6 b7 a4 f5 e3 d5 e2 d6 e1R h3 g2 f6 a3 b6 a2 f7 a1Q+ Kc4 Nf6 c3 Ne4 d7 Ra5 Qf3 Re3 Qf5 g3 Ne2 g1Q Qd5 g2 Ng3+ Kh4 Kb4 g4 Bc4 Nc5 Bb3 Qf2 c4 g1Q Nc3 Bg7 f8B Qf7 Nd1 Qaf6 Bd2 Rh5 Bc3 Bh8 Bg7 Qdf8 d8N Ra6 Rh2 Qh1 Re2 Qe4 Bh6 Rd3 Be3 Qeh7 Bg1 Rf5 Re6 Rh5 Nf1 g3 Bgd4 g2 Ng3 Qf7g7 Nf7 g1Q Nd6 Qgf7 Bf2 Qe1 Bd4 Qd2 Be3 Qc1 Bg1 Nbd7 b8Q Bb7 Bgd4 Ba8 b7 Rg5 Qc7 Re3 b8Q Rf5 Qb5 Nb8 Qca5 Rh5 Qa2 Rhe5 Qh2 Rf3 Ba2 Nd3+ Kb3 Re2 Bb4 Rff2 Bb6 Rc2 Bc3 Rfe2 Bb1 Rca2 Bc2 Ra1 Nb7 R1a5 Nd6 Nf4 Kb4 Rf2 Ba4 Ra2 Bc2 R2a3 Bb3 Nd3+
b1qQ1BRQ/5kn1/4p2P/p1r1q1b1/6N1/PB2QbrN/n1b4N/1B2Kb1q w - - 0 1 legal: proof: e4 g5 g4 c5 f4 d5 b4 dxe4 bxc5 h6 a3 gxf4 g5 h5 Ra2 Qd7 Rb2 Na6 Rb3 Nb8 Rg3 Qd8 Rg4 hxg4 h4 b5 c4 f5 d4 a5 d5 g3 c6 g2 h5 e3 c5 b4 h6 b3 d6 e6 d7+ Kf7 c7 f3 c6 e2 Be3 b2 Rh4 f4 Rh5 f2+ Kd2 f3 Nh3 g1Q Qc1 Be7 Bc5 Bb7 c8Q Qh1 c7 Na6 Bg2 f1B Ke1 Nf6 Nd2 Qg8 d8Q b1B Rh4 Rb8 Rg4 Bc2 Bd6 Nh5 g6+ Kf6 g7 Nb4 Rg3 Na2 Bb4 Qf8 g8N+ Kf7 Nf6 Rg8 Ng4 Bg5 Bc5 Qe8 Bf8 Ra8 Qb8 Ng7 c8B Qc6 Bd7 Qc8 Bc6 Ra6 Ba4 Rc6 Qe5 Rc5 Bb3 Ba8 Qb8 Qg1 Bh1 Bg2+ Nf1 Qd4 Nfh2 Qe5 Qe3 f2+ Kd2 f1B Ke1 Bgc6 Be4 Bd5 Bh7 Bf3 Bd3 Bd1 Bb1 Bc2 Rg2 Nf5 Qdd4 Bf6 Qb6 Qe4 Ngf2 Bd8 Qc1 Bh5 Kd2 Bg4 Rg3 Qh1 Qh8 Bgf3 Rg4 Be7 Qd8 Rg7 Re4 Rg3 Rg4 Bh4 Rg8 Ng7 Nfg4 Bf6 Ke3 Be7 Qcd2 e1Q+ Qe2 Qd2+ Kf2 Qe3+ Ke1 Qe5 Qe3 Bg5
2B1RQ1b/b3r2b/P1p2b1n/R2Q2n1/qB3k1K/N1Pp4/1b2Brqq/1Q4R1 w - - 0 1 illegal: No possible last move, all moves rejected
6n1/2N2r2/p4QQP/PbQ1NB1n/1Nq1R3/Bkpb4/1b2rK2/b1rqq1B1 w - - 0 1 illegal: No possible last move
b2n3k/B4QbN/qQ3n2/3r4/2P3qp/b2n1BnB/1rQRqp1P/1N1N3K w - - 0 1 legal: proof: d4 g5 b4 c5 f4 gxf4 a3 cxd4 Ra2 e5 a4 b5 Ra3 e4 Rf3 exf3 axb5 Qc7 Nd2 Qb6 Nb1 Qd8 Kf2 h5 e4 a5 g4 d5 c4 f5 e5 Kf7 g5 Kg7 e6 h4 e7 d3 e8B a4 g6 d4 b6 a3 b5 a2 b7 a1B b6 d2 Bc6 d3 Qe2 d1Q Qe5+ Nf6 Be4 d2 Bc2 Rh5 Be2 Ra2 Ba3 Qd6 Qe7+ Kh8 Bc5 Nc6 b8Q Bb7 Nh3 Ba8 b7 Nd8 Qf7 Rb2 Ba7 Qa6 Qd6 Be7 Qd3 Ba3 b8Q Rg5 Re1 Rh5 Kf1 f2 Qb6 Rg5 Bh5 Qg4 Re2 d1N g7+ Kh7 g8N+ Kh8 Bg6 Rh5 Qc3 Rg5 Be4 Rh5 Qg3 Rg5 Kg2 f1N Bf3 Nf2 Bh7 Nd3 Kh1 Rh5 Qg2 Ng3+ Kg1 Rg5 Nf2 Rh5 Rd2 Rg5 Be2 f3 Nd1 f4 Bf5 Rh5 Bd7 Rd5 Be6 Qh5 Bh3 Qg4 Qh1 f2+ Kg2 Nb7 Bf3 Nd8 Qg1 Ne2+ Kh1 f1Q Qb3 Qf2 Qc2 Qe3 Bfg2 f3 Qf2 Qe7 Qb6 f2 Bf3 Ng3+ Kg2 Ne8 Nf6 Qe2 Nh7 Rb4 Qbc7 Bg7 Qd6 Nf6 Qb6 Nge4+ Kh1 Rb3 Bhg2 Rb2 Bh3 Ng3+
1n4b1/q3q1r1/r1nQp2P/nR1Q1Qp1/1b1BR3/N1q3P1/r1R1B1k1/K5Bn w - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 g3 fxe4 Na3 b5 axb5 h5 Nc4 h4 Ne3 h3 Ng2 hxg2 Kd2 Kf7 c4 Kg6 Kc2 Kf5 Kb1 a5 f4 d5 b4 g5 h4 e3 c5 Ke4 f5 e2 b6 e1Q b7 a4 c6 d3 h5 d4 c7 a3 f6 a2+ Kb2 d2 h6 d3 b5 Be6 c8Q Rh7 b6 Rg7 f7 Ra6 Nf3 g1Q Ne5 Qc7 Qb3 d1R Be3 d2 Nc4 Kf3 Rc1 a1N Be2+ Kg2 Na3 Qc3+ Ka2 Bc4 Rc2 Rb1 Qf5 d1N Bd4 Nf2 Rh4 Nh1 Re4 Bd5 Qc4 Nb3 Qd3 Be6 Qc4 Na5 Qcd5 Nbc6 b8B Nf6 b7 Nd7 Bbe5 Ndb8 Bb6 Qgc5 Bd4 Qf2 Ba7 Rb2+ Ka1 Q5b4 Bac5 Qfe3 Qd6 Qb6 Qfd5 Qa7 Bb6 Bf5 Bbc5 Bh7 Bb6 e6 Bbc5 Be7 f8Q Bg8 Qff5 Qf3 Bb6 Qh5 Bg1 Qf7 Bbd4 Qf8 Qc7 Bb4 Qcd6 Nd7 b8R Qe7 Rb7 Ndb8 Rb5 Ra2+
N1Nb4/rpbQ1K2/2QBP3/1pQR1nRb/rqr1N3/1Pbn4/qk2n3/7R w - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 g4 exf4 Bg2 hxg4 Be4 a6 Bd3 Be6 Bc4 Bc8 Bb5+ axb5 Kf2 Ke7 d4 Kf6 a4 g5 e4 c5 h4 c4 b3 c3 d6 c2 h5 g3+ Kf3 g2 h6 g4+ Kf2 g3+ Kf3 Ra7 d7 Ne7 Kg4 f3 Kh5 f2 d5 Ke5 d6 f1N a5 f5 h7 f4 a6 f3 Ra2 f2 Qe2 Kd4 e5 Bg7 Bf4 c1R Ra1 Qf8 d8R Rc4 d7 Nf5 Kg6 Qb4 Qc2 Nc6 Nh3 g1B Na3 g2 Ng5 N1g3 Kf7 f1Q Ne4 Qb1 e6 Bh2 Bd6 g1B Rg8 Ne2 d8Q Qa2 Qd7 Bf6 Re1 Bd8 Rg5 Be5 Rhh5 Bgh2 Rh1 Rg8 h8Q Bef6 Rg2 Rg4 Qf8 Rh4 Rgg5 Ne5+ Kg8 Nd3 Kf7 Bf4 Qfe7 B6e5 Qc6 Bd2 Qed7 Bc3 Qc1 Bc7 Qc2 Bf6 Qc1 Bfd8 Qc2 Rc5 Nc4 Rg4 Nb6 Rc4 Qe8 Bd7 Nc8 Nf2 Qc1 Kd3 Qe3+ Kc2 Qec5 Kb2 Qe7 Nd3 Qe8 Nfd4 Rd5 Nf5 Rg5 Ra8 a7 Rh4 Qe7 Be8+ Kf8 Bh5 Qed7 Rb8 a8N Rf4 Nab6 Ra8 Kg8 Ra7 Na8 Rf1 Kf8 Ra1 Kg8 Qb1 Kf8 R1a4 Kg8 Qa2 Kf8 Bf3 Kf7 Bh5+
r7/3R1R1r/1pnn1qN1/1K2Bbb1/1B5Q/2PQ1bQB/1P1qRpn1/3n1rk1 w - - 0 1 illegal: No proof kernel
nkbbQ3/Rp3rQB/3N2bp/NbR5/1Q1r1n1P/1P1R2r1/5Nbq/1K5r w - - 1 2 legal: proof: d4 g5 c3 d5 c4 e5 cxd5 exd4 f4 gxf4 b3 a5 Ba3 a4 Bc1 a3 Bb2 axb2 Kd2 Kd7 Kc2 f5 g4 c5 h4 Kc7 a4 d3+ Kc3 f3 e4 d2 Kc2 f4 g5 f2 a5 h6 a6 c4 a7 f3 e5 c3 g6 Qd6 g7 Be7 e6 Nd7 Na3 Nb6 Qe1 d1R Nc4 Bd8 e7 Rd4 Nh3 Nf6 g8Q Rh7 Qg7 Nh5 Kb1 Qh2 Na5 Nf4 Bd3 f1B Nf2 Rb8 Rg1 Na8 Rg5 Be2 Bf5 Bb5 Qd2 Rh8 Bc2 Rf8 Bh7 Rf7 e8Q Nb6 a8R c2+ Ka2 c1R Qb4 Rcd1 Ra7 Rh1 Rd1 Na8 Rd3 b1B+ Kb2 Bg4 d6+ Kc8 Re3 Bg6 d7+ Kc7 Rge5 Rc8 Rh5 Kb8 Rd3 Rcc1 Rc5 Rcg1 Qee1 Rg3 Kb1 Bb6 d8N Bc8 Nd1 f2 Qe8 f1B Nf2 Rf5 Nf7 Bd8 Nd6 Rf8 Qh8 Rf7 Qg7 Bg2+
Qnn1k1B1/2B1N3/2qp1K2/3Pr1n1/b2b1PR1/4p1Rn/Q2rbBQ1/1R1rb3 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Nc3 g5 Na2 gxh4 axb5 Na6 b6 Nb8 b5 Bg7 Nb4 cxb4 Ba3 Bh6 Bc1 Bf8 Ke2 a5 Ke3 h5 Kd4 e5+ Kd5 b3 g4 e3 c4 h3 d4 h4 f4 d6 b7 e4 c5 a4 b6 e2 g5 e1B g6 b2 c6 b1B g7 a3 c7 e3 Bc4 a2 Qd2 h2 Nf3 h3 Ne5 Bc2 Rg1 h1N Qg2 h2 Nc6 Bg4 c8Q Be2 Ke6 Ra5 Bd2 Ba4 Rb1 a1R Ne7 Nf2 Ba2 h1N Qc2 Rh3 Bc4 Rh8 Qa2 Rh2 Bb3 Qc7 Bb4 Nc6 b8B Ng3 b7 Nh3 Bc4 Qb6 Bc7 Ne4 Bd5 Qa6 Kf5 Neg5 b8Q+ Qc8+ Kg6 Rc5 Qa8 Nb8 Be6 Re5 d5 Qd7 Bd2 Qc6 Bb4 Nf6 g8R Nd7 Bba5 Nb6 Kf6 Nc8 Bc3 Nf3 Rg4 Nfg5 Bg8 Bh6 Rb6 Rd1 Rb1 Bg3 Be1 Bg7+ Kg6 Rf5 Bf2 Bd4 Qf1 Bh4 R1g3 Re5 Kf6 Rd2 Rf3 Rh1 Qg2 Rc1 Bg1 Be1 Rfg3 Rcd1 Bf2 Qc1 Rh4 Qc2 Rhg4 Qc6
5q2/QRbqb1Bk/q2R2Nr/1bK3pb/2Q2pP1/5q1N/Q1n4P/1r1N1nR1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Nd2 b5 axb5 h5 Bh3 h4 Bg2 h3 Nb1 hxg2 Kf2 g5 c4 a5 e4 d5 b4 f5 c5 Kf7 e5 Kg7 c6 f3 b6 d3 Ke3 f2 Kd4 f1B b7 f4 c7 a4 b5 a3 b6 a2 e6 d2 e7 Rh6 e8R Ne7 Nc3 Bg4 c8Q Bb5 Rb1 a1Q Qa4 d1Q+ Kc5 d4 Be3 d3 Qa3 d2 Qb3 Bh5 g4 Kh7 Qa2 Qf3 Bd4 d1Q Bg7 Q1d7 Nh3 Nbc6 b8N Nd4 b7 g1B Nc6 Nd5+ Ne7 Ne3 b8Q Nf1 Qba7 Rb8 Nd1 Be3 Rb4 Nc2+ Rd4 Bd2 Rd6 Ba5 Rg1 Bc7 Ng6 Be7 Rf8 Qf6 Rf7 Qf8 Qca6 Qfc8 Q6a4 Qa6 Q4c4 Rb6 Rf8 Qf7 Rb8 Qf8 Rb7 Ba4 Qb8 Rb1 Qa7 Bb5
4R3/1rbp2qP/1r1Npqn1/q2QPR1b/5bB1/R5p1/B1k3Kr/B2n2QQ w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Ne4 f4 Ng3 fxg3 Bh3 Nc6 Bf1 Nb8 c4 Kf7 b4 Kf6 h4 Kf5 e4+ Ke5 h5 g5 h6 a5 b6 e6 b5 a4 b7 g2 c5 g3 b6 g4 c6 d3 f4+ Kd4 f5 Kc3 e5 a3 c7 a2 f6 Na6 b8Q Nc5 f7 Qf6 b7 Ra6 Qa7 Bd6 b8Q Ne4 f8R Rb6 Nf3 g1B Re8 g2 Nd2 Bh2 Qbb7 g1Q Nc4 Bf4 Rh5 Nf2 Rf5 Ne7 Qd5 Ba6 c8B Bc7 Bb7 Ng6 Nd6 Bb5 Q1f3 Nd1 Qh1 Kc2 Bb2 Bc6 Bc3 d2+ Ke2 Rh7 Bh3 Qg3 Kf1 Ba4 Rb1 a1Q Rb3 Bc6 Ba8 Qa5 Ba1 Rb7 Qag1 Rb6 Qdg2 Bf3 Bd5 Rh8 Ra8 Rhb8 h7 R8b7 Rf8 Qg7 Ra3 Qh4 Ba2 g3 Rh8 Qhf6 Re8 Bh5 Bg4 Ne3+ Ke2 d1R Qd5 Rd2+ Kf3 Nd1 Nf7 Rh2 Nd6 Rh4 Kg2 Rh2+
1b3r1n/1RBp1Q2/2bq4/1brp2Q1/1pP5/NPR1r3/Kn1knqB1/5QBR w - - 0 1 legal: proof: h4 f5 e4 g5 exf5 gxh4 d4 a5 b3 c6 d5 cxd5 Na3 a4 Nc4 a3 Nb2 axb2 Kd2 Kf7 Kc3 Kf6 g4 Ke5 a4 Ke4 f4 b1B Kb2 h5 g5 b5 g6 e5 a5 b4 f6 h3 f5 h4 c3 h2 a6 h3 g7 Bd6 f7 Bb7 f8B Nh6 g8R Qc7 f6 Bd3 f7 Bc6 a7 Bdb5 c4 Na6 Ra5 Nc5 Rg3 Na4+ Ka2 Rc8 a8Q Nb2 Bg7 Rhf8 Qa6 Qa7 Ra4 Bb8 Rf3 Qf2 Bf4 Rc7 Qa1 Kd4 Be3+ Kc3 Ne2+ Kd3 Qc1 e4 Bg2 Rcc8 Bc5+ e3 Qf1 Kd2 Nd4 e2 Rc3 e1R Nc2 Re3 Be5 Rc7 Na3 Rcc8 Rg1 h1N Bc7 Ng3 Rh1 h2 Qb6 Ne2 Ra7 Ng3 Rb7 Ne2 Rg1 h1Q Bd4 Qh5 Rh1 Qg6 Bc5 Rg8 f8Q Qd6 Qf7 Rgf8 Qa7 Ng8 B5b6 Ne7 Bd4 Ng6 Qc5 Qe5 Qce7 Nh8 Qg5 Qe7 Bde5 Qd6 Bh2 Ba4 Bg1 Bcb5 Bb6 Rc5 Ba5 Bc6 Bc7 Bab5
2r4n/1N3pRq/rN1qPQq1/2bR4/5Ppp/n3BQbN/1R1K2bk/4Q1n1 w - - 0 1 illegal: No proof kernel
1NK1Qr2/1pn5/Rr1k1N1b/p1qPN2R/nP1p2Qq/3bb3/Rq6/1B1Q1r2 w - - 0 1 illegal: No proof kernel
1qr4k/2B3q1/n2pQn1b/p2NQ3/nrK1p1P1/2QR1N2/P1Rq1N2/2b2b1R w - - 0 1 legal: proof: e4 b5 d4 f5 c4 bxc4 h4 g5 d5 gxh4 Bd3 e6 dxe6 Qf6 e5 Qd8 Be4 fxe4 Ke2 h5 g4 c5 f4 a5 b4 c3 e7 Kf7 e8N h3 b5 c4 f5 c2 b6 h2 f6 h4 b7 c3 Qd6 h3 Qc7 Bh6 Nf3 Na6 Bf4 c1Q b8Q c2 e6+ Kg6 f7 Kh7 f8Q Nf6 e7 Qd1+ Kf2 c1B Qc3 Qc7 Qbb2 Qb8 Bc7 d6 Qbb3 Bd7 Qe6 Bb5 Qce5 Bd3 Nc3 Bf1 Rb1 Rg8 Rb3 Kh8 Qff7 Qd3 Nd1 Ra7 Ke1 Rb7 Nf2 Rb4 Ra3 Qd4 Rd3 Qe3+ Kd1 Qg5 Kc2 Qg7 Kc3 Rf8 Rg1 h1Q Qg6 Qg2 Rh1 h2 Qgg5 Nd7 Qe3 Nb6 Nf6 Rc8 Nd5 Na4+ Kc2 Rf8 e8R Rg8 Rc8 Re8 Rg1 h1N Qd2 Rf8 Qdc3 Ng3 Rh1 Nh5 Qc5 Nb6 Kc3 Nf6 Qc4 Na4+ Kd4 Rb2 Qc3 Qh2 Kc4 Qf4 Bb6 Qd2 Rc5 Rc8 Bc7 Bh3 Rb5 Rb1 Rb2 Bf1 Rc2 Rb4+
3R1rbQ/3n1n2/1PBN2Kb/R2Q2p1/NN1Rn1Q1/p3qnP1/p3bk2/2r1n3 w - - 0 1 illegal: No extended proof kernel
Q1B3bK/6N1/n1RR2N1/5pb1/1r1RpQrN/n1bq1Qbp/4PP1k/2b2n2 w - - 0 2 legal: proof: c4 g5 g4 d5 b3 dxc4 Ba3 Nd7 Bd6 Nb8 a4 b5 h4 gxh4 Bg3 hxg3 axb5 Bb7 Qc2 Ba6 Qd1 Bc8 d4 Kd7 Kd2 Ke6 Kc3 a5 b4 c5 b6 h5 g5 Kf5 d5 Kg4 b7 f5 g6 e5 b5 h4 d6 a4 b6 g2 d7 a3 g7 a2 Qc2 Ra4 Nd2 Rb4 Qd3 Ne7 g8N Na6 b8Q Bg7 Rd1 a1N b7 Nc2 Nh3 g1B Qa8 Bh2 b8Q Na3 Ng5 Bg3 Ne6 Bf6 Nf3 Nd5+ Kd2 Rh7 Ne7 Rg7 Bg2 Ne3 Kc3 Nf1 Ng6 Bb7 Rh2 Bd5 Bh1 Rg8 Ng7 Bf7 Rg2 Kh3 Qde4 Be6 Rd4 Bd5 Qbb7 Be6 Qf4 Bf7 Nd2 Bg5 Rg1 Kh2 Qbf3 h3 Bg2 Qb8 d8R Qb5 R8d6 Bd5 Q3g4 Be6 Bb7 e4 Bc8 Bd5 Ne8 Rg7 Qgf3 Bg8 Ne5 Rg6 Ng7 Bf6 Rc6 Rg4 Rdd6 Ne3 Rd1 Nf1 Nb3 Bg5 R1d4 Bf6 Ng6 Be5 Kb2 c3+ Ka1 c2 Kb2 c4 Kc3 Qa4 Nh5 Be6 Q3e3 Bd5 Nd2 Rh4 Nf3+ Kh1 Qd3 Rg4 Nfh4 Bf6 Qde3 Bg5 Rd2 c1B Kd4 Qb3 Ke5 Bb2+ Rd4 c3 Qd3 c2 Qc3 Kh2 Qf3 Bh6 Kf6 Bg5+ Kg7 c1B Kh8 Bg8 Ng7 Qd3 Rb6 Ba1 Rbc6 Bc3
bQq4b/Pr2N3/1Q5n/p1rpQR2/P7/2bRnr1k/NN1pKr1B/5n1R w - - 0 1 illegal: No possible last move, all moves rejected
1nNB1KR1/brRQb1pN/RQ2Qnp1/8/bn3kP1/5r1p/1N1P1r2/1qn5 w - - 0 1 illegal: No possible last move, all moves rejected
RK1Rq1k1/3q1NN1/3Rr3/1Qb1n3/1p2b2p/1Q1PpnrB/2n1P1Qb/3N1n2 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 axb4 c4 d5 cxd5 f6 Bb2 Ra5 Be5 Ra8 Bf4 gxh4 g5 Na6 g6 Nb8 Bg5 fxg5 a4 e5 f4 c5 Kf2 h5 Kf3 b5 Ke4 h3 g7 Kf7 a5 b3 d6 b4 Kd5 h2 a6 e4 d7 h4 d3 g4 f5 e3 a7 c4 f6 c3 Qe1 b2 Nf3 c2 Qf2 c1Q Qe1 g3 Nc3 b1N Qd2 g2 Nd4 g1B Bh3 Qe8 d8R Na3 Qa2 Bf5 Qb3 Bc5 Ne6 Nc2 Ra6 Nd7 Kc6 Nh6 Kb7 Kg8 Rd6 Ng4 Nd1 Nde5 Kc7 Rb8 a8Q Rb6 Qg2 Nf3 Kc8 Be4 f7+ Kh7 g8N Nge5 Nh6 Rg8 f8Q Rg3 Qf6 Ra6 Nf7 Kg8 Qh6 Qa1 Ng7 Qa4 Kb8 Qd7 Qh5 Rc6 Rg6 Re6 Qf5 Bf2 Rf1 h1N Rf6 Bg1 Qg5 Re7 Rd6 Re6 Qh5 Bh2 Qf5 Ng4 Qfd5 Nge5 Qb7 Rg4 Qb5 Ng3 Rf2 Nfe1 Rf6 Nf1 Ra6 Rg5 Ra8 Rg3 Rh6 N1f3 Rf6 Re7 Rd6 Re6
b1Q1b2b/rp6/8/Bpq1N2k/1Rn2r1P/B2p1q2/nQBP1Q2/b1KNn2N w - - 0 1 illegal: Other
1n3RqQ/2K1Bp2/RP2q1r1/5PR1/1n2bbnn/6Qp/2p1kNNb/1N1r2Q1 w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 g5 d4 e6 h4 gxh4 e3 Qg5 Bd3 Qf6 Be4 dxc4 d5 Qe7 d6 Qd8 Bd5 exd5 Kd2 Kd7 Kc3 Ke6 Kd4 Kf5 Kc5 Ke4 g4 h5 b4 a5 f4 c3 f5 a4 g5 d4 b6 c2 g6 a3 b5 h3 b7 h2 b6 h4 g7 a2 Na3 h3 Bd2 Kd3 e4 c1B e5 Nh6 g8Q Ng4 e6 Rh6 e7 Rg6 Kd5 c5 e8Q c4 d7 c3 Qde1 Bd6 Bg5 Bcf4 Ne2 c2 Rg1 h1N Be7 Nhf2 Qb1 Ke3 Rg2 d3 Ng3 d2 Nh1 Nd3 Nf2 Ke2 Qg1 d1N Nb1 Bh2 Qg7 Bdf4 Qeh8 Qg8 d8N Nb4+ Kc5 Ra7 Ne6 Nde3 Qe5 Ra3 Kd6 Rd3+ Kc7 Rd1 Rg3 Bd7 Qd6 Bc6 Qde5 Nh6 Rg5 Be4 Qd6 Nhg4 Qde5 N8c6 b8R Ng2 Rf8 Nb8 Qd6 Bc1 Qg3 Nh4 Nc5 Be3 Ncd3 Bd2 Ne1 Be3 Na3 Bd2 Ng2 Bc1 Rb1 a1Q Rb2 Qb1 Ra2 Qb3 Nb1 Qe6 Ra6 Bf4+
1Nn2KQ1/p3R1N1/1k6/q2npBrb/P1r2B2/qP5n/BbN3rp/1rQ2Q2 w - - 0 1 legal: proof: d4 b5 h4 g5 c4 bxc4 Rh2 gxh4 Rh1 e5 dxe5 f6 e4 Bc5 a4 Ba6 e6 Bc8 e5 Bf8 e7 Kf7 Ra3 Ke6 Rf3 Bh6 Rf5 Bf8 Kd2 Kd5 e6+ Kd6 Ke1+ Kc6 Re5 fxe5 Kd2 h5 Kc3 d5 Kb4 c3 f4 h3 g4 d4 f5 d3 b3 h4 g5 h2 f6 d2 f7 h3 g6 c2 g7 Kb6 Bb5 c5+ Kc4 Rh5 e8B Nc6 e7 Rg5 Na3 Bg4 Nf3 Nf6 g8Q Nd5 Nd4 Bh5 Bd7 Rg2 e8N Nce7 Rg1 h1R Bf5 h2 Ng7 Nc8 Nc6 Qc7 Qe1 d1N Bf4 c1Q+ Nc2 Qa3 Nb8 Nf2 Qc1 Nh3 Be8 Be7 f8Q Rg5 Rg3 Rg1 Beg6 Rg2 Kd3 c4+ Ke4 c3 Rd3 Ne3 Rd7 Nd5 Qff7 Bc5 Re7 Bd4 Qf6+ Kc5 Qa6 Qa5 Qaf1 Kb6 Be6 R5g4 Kf5 Rh4 Bd7 Rhg4 Ke6 Rg5 Nc6 Rb8 Kf7 Rb7 Kf8 Rc7 Nb8 Rc4 Na1 c2 Bdf5 Bc3 Bg4 Qa6 Qd2 c1R Bb1 Bb2 Ba2 Rg6 Bf5 Qa5 Nc2 Rb1 Qdc1 R6g5
3r1qQR/5q2/Pn1N4/1n1N3q/p1Q2Npp/b2bbpR1/1k3PBQ/2Rr2K1 w - - 0 1 illegal: No proof kernel
1B3k2/1rb2N2/p2p2Kb/1QPNB1n1/2qP1Q2/4Nr2/2b1p1np/1QqB2Rb w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Ra3 g5 Rb3 gxh4 axb5 Bg7 b6 Bh6 b5 Bf8 Rb4 cxb4 Ke2 e5 Ke3 h5 c4 a6 f4 b3 g4 h3 d4 d6 c5 b2 f5 h4 g5 h2 g6 h3 b7 Rh7 g7 Nf6 g8N Nbd7 b8Q Nb6 Bd3 Rb7 Nc3 b1Q Nh6 Nh7 f6 Bf5 Nge2 Ng5 Rg1 h1B Ng3 h2 Nf7 Bh6 Bc2 Kf8 Nf1 Qa2 Nd5 Qc4 Qe1 Bg6 Bd1 Raa7 Kf2 e3+ Kg3 e2 Kh4 e4 Bf4 e3 Be5 Bc2 Kh5 Ra8 Qb4 e1B Qb1 e2 Nfe3 Bc3 Ng2 Ba5 Nge3 Na4 b6 Nb2 Nf5 Nd3 Nfe3 Ne1 Qb5 Re7 b7 Bc7 Qb1 Ng2 Qb5 Bb3 Kg6 Ra7 Qc8 Ra8 b8B Bc2+ Qf5 Ra7 Qe4 Rb7 Qd3 Qe8 Qb1 Qea4 Qb5 Qa1 Qe4 Bb3 Qb1 Bc2+ Kh5 Re6 Q1b3 Qa3 Nh8 Rb6 f7 Rf6 Qb1 Rf5 Kg6 Qc1 Nf6 Ke7 f8Q+ Ke6 Nfd5 Rf3+ Kh5 Rb7 Qf4 Bf5 Nf7 Bc2 Nc3 Ke7 Ncd5+ Kf8 Ng4 Ba4 Nge3 Bb3 Kg6 Bc2+
K2qr3/1p2Q2p/1nQ3q1/N1R4p/1R1qrnk1/1p4Nb/nP1N1B1P/2Qr1R2 w - - 0 1 illegal: No proof kernel
BK1N2br/p4BnN/2r4q/P3pb2/1k1B1PQ1/pnpRrp2/4Q3/2bQ1N2 w - - 0 1 illegal: No proof kernel
N1BN4/4r1B1/3Bp1pn/rqp3P1/k4p1b/q1R4K/2PNQQ1p/n1b1Q2n w - - 0 2 illegal: No extended proof kernel
3rr2Q/pQp2pbB/3R2r1/2B1K2b/PP1nR2R/4q1p1/2N2npQ/2B1rk2 w - - 0 1 illegal: No possible last move
R2qBQ2/pN1rQN2/kB6/3pQ1pq/1KpP2B1/4nb2/N1Pp1br1/6br w - - 0 1 legal: proof: b4 e5 a4 b5 h4 bxa4 d4 g5 h5 e4 Ra3 f6 Rd3 exd3 Bb2 Nc6 Bc1 Ne5 g4 Ng6 hxg6 f5 Bb2 fxg4 Ba3 Bd6 Bc1 Bf8 Kd2 c5 Kc3 h5 e4 d5 f4 Kd7 g7 Kc7 f5 Kb6 f6 g3 b5 h4 f7 h3 e5 d2 e6 c4 e7 h2 e8N a3 Qe1 a2 Bh3 a1R Bg4 g2 Qe7 Ba6 Nf3 g1B Ba3 Qd7 Bc5+ Kb7 b6 Nf6 g8B Rd8 Ne5 Bf2 Re1 h1Q Kb4 Rh2 Nc3 Rg2 Na2 Qh5 Re4 Bg7 f8Q Rh1 Nf7 Qc7 Bh7 Rd7 Bg6 Qd8 Re3 Bb5 Ned6+ Ka6 b7 Bh8 b8Q Ba4 Be2 Ng4 Bb6 Be5 Nb7 Bh2 Qbe5 Bhg1 Re4 Ne3 Bg4 Rd6 Rf4 Be8 Rf6 Rd7 Rc6 Rd6 Rc8 Bd7 Ra8 Bf5 Nh8 Be4 Be8 Bf3 Nf7 Rd7
k6K/P2q1rP1/4B2n/Br3pB1/1q1qR3/b2prbNQ/qN2N1N1/2N5 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 fxe5 c5 Ba3 cxd4 Bb2 Ra6 Bc1 Ra8 hxg5 b5 a4 Na6 Ra3 bxa3 c4 b4 Kf2 Nc7 Ke1 Nb5 cxb5 Qe7 Rh6 Qf6 Rh1 Qd8 Kf2 d5 Kg3 Kd7 Kf4 Kc7 e4 Kb8 g4 f5 a5 h5 a6 b3 g6 h4 g5 h3 e6 d3 Ke5 b2 e7 d2 e8N h2 b6 a2 b7 a1Q g7 d4 g6 Qd7 Nc3 b1Q Qh5 d1Q Nce2 Bc5 Qh3 Qd1a4 Nf6 Qf7 a7+ Kc7 b8B+ Kb7 Bc7 Qab2 Nd5 Qaa1 Bg5 Q1c1 Ne3 Qcd2 Nc1 Rb8 Ng2 Qf8 Bc4 Bb6 Nge2 Qbc3 Re1 h1R Be6 Nh6 g8N Rf1 Nf6 Qe7 Nh5 Qcb4 Nhg3 Bc5 Ba5 Qd7 Kf6 d3+ e5 Ka8 g7 Rf3 Kg6 Re8 Kh7 Re7 Kh8 Rf7 Ba2 Qb3 e6 Re3 e7 Qdb4 e8N Qad4 Nd6 Rb5 Nc4 Bb7 Nb2 Q3a3 Be6 Qa2 Rf1 Bd6 Rf4 Bf3 Rh4 Qba4 Rg4 Ba3 Re4 Qab4
5n1n/bP2nNN1/2bNQNN1/q1p5/2p5/2n1rb1K/B2Pk3/1R1b1R1R w - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 g5 exf5 b5 c4 d5 h4 dxc4 a4 gxh4 a6 b4 a5 Ra7 Bb2 Rb7 Bc3 Rb6 Bd4 Qxd4 axb6 Qd8 f4 Kd7 Kf2 Kd6 g4 Kc5 Kg2 Kd4 f6 e5 f5 h5 a7 e4 a8R h3+ Kh2 h4 g5 e3 g6 b3 f7 b2 f6 e2 g7 Kd3 b7 Ne7 g8N Bg4 Qa4 Nd7 Bg2 e1N Nc3 b1N Ne4 Nc3 Rb1 Bd1 Nf3 Ke2 Qa6 Nd3 Nd6 Nf4 Ne5 Nfg6 Be4 c5 Bc2 Qa5 Bb3 Bg7 Re8 Ndf8 Ba2 Rh5 Qc6 Nh8 Qd5 Rg5 Qe6 Rg3 Rc8 Re3 Rc7 Nh7 f8N Bh6 Nfg6 Nf8 f7 Bf4+ Kg1 h2+ Kg2 Bg3 Nf6 Bf4 Rf1 Bg3 Kh3 h1B Rc6 Bf3 Rh1 Bc2 Rbf1 Bd1 Rb6 Bc6 Rb1 Bh2+ Kg4 h3 Kh4 Bg3+ Kg4 h2 Kh3 Nh7 f8N Bf3 N8d7 Nf8 Nh5 Bf4 Nef7 Be5 Nc8 Bb8 Ndf6 Ba7 Ncd6 Ba4 Rhg1 h1B Ng7 Bfc6+ Rg3 Bhf3 Rgg1 Bc2 Rh1 Bd1
2N1B1R1/1r3r1P/p3B1Kb/1BpP4/1B2Q1Bq/2pq2RR/k1rn3q/6n1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 b6 exf4 Nf3 a6 Qa4+ Nc6 Qa2 Be6 Qa3 Na7 Qb3 c6 Qd1 Rc8 Ng1 Rc7 b7 Re7 Ra3 Bc8 Ra1 Re6 bxc8B Re4 Bb7 Re5 Ba8 Rc5 Nc3 g5 Qc2 h5 Qh7 f3 Nd5 h4 Nf4 gxf4 Qxh4 Bg7 Qh7 Bf8 Kf2 Kd7 d4 Kd6 e4 f5 b4 c3 g4 Nc8 h4 Ke6 h5 Rb5 h6 c5 g5 Qd7 g6 Qg7 e5 Qe7 g7 Qd8 Ne2 Na7 Ng3 Nc6 Ba3 Kd5 e6 Qh4 e7 Nf6 e8B Rb7 b5 Ne5 b6 Rg8 Bh3 Kc4 d5 Kb3 Rag1 Ka2 Bg4 Rh8 g8B Ne4+ Kf1 f2 Kg2 f1R Be6 Rc1 Rh3 Nf3 Bb4 Ned2 Ne4 Rc2 Nd6 Bg7 Bb5 Rf8 Nc8 Rff7 Qg6 Bf8 h7 Bh6 Be8 Ne1+ Kh2 f3 Rg3 f4 Qe4 f2 Bb5 f1Q Be8 Rbd7 b7 f3 b8R f2 Bc6 Rb7 Bb5 Qc4 Ra8 f1Q Rb8 Qff6 Ra8 Nef3+ Kg2 Qh8 Kf2 Bf8 Ke3 Qe5 Rb8 Qeh5 Ra8 Ng1 Rb8 Rfe7 Kf4 Qd3 Ra8 Qh6+ Kf5 Qf4+ Kg6 Bh6 Rb8 Rf7 Rf3 Ne2 Nd6 Qe7 B8d7 Nb1 Rg8 Qh2 Rfg3 Nd2 Nc8 Qh4 Be8 Ng1
1N1N1nbr/Pn2p2p/3B2nR/pBB3k1/2Q1r3/1K3pnP/2N4N/2q3N1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 bxc5 Bf5 Qg4 Be6 Qd1 Bc8 a4 g5 fxg5 Qd3 Qe2 Qd7 Qa6 Qd8 Qb6 axb6 a5 Bg7 c6 Bc3 a6 Bb4 Ra5 bxa5 c3 b5 Bb2 Bd6 Bc1 b4 Nf3 b3 Ng1 Bb4 cxb4 Bf5 Nf3 Be6 Ng1 Bc8 Kd1 f5 g4 Kf7 d4 Kg6 d5 f4 b5 e3 d6 f3 a7 b2 Kc2 e2 b6 e1N+ Kb3 Bf5 c7 Bc8 d7 Na6 b7 Nc2 b8B Na3 Bb5 Nf6 Be3 Ne8 Bc5 Bb7 c8N Be4 Bbd6 Nf6 Nb6 Nc4 Na3 b1N Nc2 Qc8 d8N Ne5 Nd7 Nc3 Nb8 Nfd7 h3 Kg7 g6 Kf6 g7 Nf8 g8Q Neg6 Qc4 Ne2 g5+ Kf5 Rh2 Bd5 Rg2 Ng3 Re2 Bg8 Re6 Ne5 g6 Kg5 g7 Neg6 Re4 Qc7 Rh4 Qc8 Rh6 Qc6 Nd7 Rc8 Nb8 Rc7 Be5 Rd7 Bc7 Rd4 B7d6 Be6 g8N Re4 Nf6 Bg8 Ng4 Qc7 Bb4 Qc8 Nh2 Nc5+ Ka2 Nb7 Kb3 Qc7 Bdc5 Qf4 Bd6 Qd2 Bbc5 Qc1
1R2rbN1/N3P3/2r3NN/4PQ1r/p1p2N1r/pB6/1n2p1B1/1qK1B1kq w - - 0 1 legal: proof: b4 d5 a4 b5 c4 dxc4 d4 bxa4 e4 e5 dxe5 f5 e6 Bb7 e5 Nd7 Ra3 Nb8 Re3 Ba6 Re4 Bc8 h4 fxe4 f4 g5 g4 Na6 e7 Nc5 f5 Kf7 f6 Bf5 gxf5 g4 Bb2 Ne6 Bc1 Ng5 hxg5 Qd4 Bd3 Qd7 Bf1 Qd8 b5 c5 b6 a5 b7 h5 b8N c3 Nd7 a3 Be3 h4 Bd2 c2 Bg2 c1R Nh3 e3 Nf2 a4 Nc3 g3 Nb5 e2 Ng4 h3 Na7 h2 Bb4 Nh6 Kd2 Qa5 Qc2 Qb6 Bc3 Qb1 g6+ Ke8 g7 Kf7 Re1 h1R Ba5 Rh5 g8B+ Ke8 Qe4 Nf7 Nh6 Nd6 Bb3 Rc8 Rf1 Rc6 Rf4 Rc4 Rg4 Rb4 Rg8 Rd4+ Qd3 Rdh4 Qe4 Qh1 Kc2 Nc4 Be1 Nb2 Kc1 c4 Nc5 Rg5 Ne6 Kd7 f7 Rgh5 Nf4 Kc7 f6 Kb6 Qd3 Kc5 Qf5 Rh7 Rh8 Kd4 Rg8 Ke3 Rh8 Bg7 Rb8 Rh8 f8N Rg8 Nh7 Re8 f7 Bf8 Bh3 g2 Nf6 g1Q Nfg8 Bg7 f8N Qf1 N8g6 Bf8 Bd1 Kf3 Bg2+ Ke3 Bc3 Kf2 Be1+ Kg1 Bb3 Qf2 Bd1 Qb6 Bc2 Qb3 Bd1 Qa2 Bb3 Qb1+
2RRB1k1/pb1Q2br/rPb4P/2p2nK1/4RNbB/p4B2/2p3r1/3BB3 w - - 0 1 legal: proof: c4 b5 f4 e5 fxe5 g5 a4 d5 Nc3 dxc4 Nd5 bxa4 g4 h5 Qc2 h4 Nf4 gxf4 Qd1 Qg5 h3 Qh5 gxh5 Nd7 Ra3 Ndf6 Ra1 Ng4 hxg4 Bd6 Qc2 Ba3 Qd1 Bf8 Kf2 f5 Kf3 Kf7 d4 c5 e4 h3 b4 a3 b5 c3 e6+ Kg7 h6+ Kh7 e5 h2 e7 c2 e8R Bg7 g5 Nf6 d5 Nh5 b6 Rf8 g6+ Kg8 e6 Kh8 e7 Bd4 d6 Bg7 d7 Kg8 d8B Ng3 Nh3 Bd7 Rg1 h1B+ Bg2 Rc8 Bd2 Rc7 Re1 Bc6+ Re4 Rd7 Be1 Rc7 Kf2 f3 Ke3 f2 Kf4 f1R+ Bf3 Rf2 Qd7 Rg2 Kg5 f4 Bd1 f3 Nf4 f2 Rb1 f1B Rbb4 Rc8 Rbd4 Be2 Rd3 Bg4 Rd5 Bd4 g7 Rc7 Rd6 Nf5 Rd5 Kh7 g8B+ Kh8 Bf7 Bg7 Bh5 Kh7 Bf3 Rf6 Rd1 Rd6 Rf8 Rd4 e8B Ra4 Rd6 Ra6 Bf6 Ba4 Rc6 Rb7 Rc8 Rc7 Bd4 Bb5 Bdf2 Bc6 Bh4 Rb7 Bef7 Rc7 Rfd8 Bb7 Be8 Kg8 Bd1 Rd2 Re3 Bhc6 Re4 Rg2 Bhg3 Bh3 Bhf3 Bg4 Bh4 Bf8 Qd2 Rh7 Qd7 Bg7
3RRK2/5RB1/4N1r1/n2rNb2/bR1bNPRb/kq1nq3/4q2P/r3bQ2 w - - 0 1 legal: proof: c4 b5 e4 h5 a4 f5 axb5 d5 cxd5 fxe4 b4 a6 g4 hxg4 b6 Rh6 b5 Rd6 b7 Rh6 b6 Rh8 Bb5+ axb5 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 Kg6 c5 Kf7 e5 f4 g5 d4 e3 d6 c4 d5 g3 d7 g2 d6 e2 Ra6 e1Q Nc3 e4 Qd3 g4 Qg3 e3 Nh3 g1R Ra3 e2 Ra7 Ne7 Qe3 g3 Qe5 g2 Qg7 Ng6 Qf6 Nc6 b8N Be7 b7 Qb6 d8R Bf5 d7 Nge5+ Kg7 Rh5 Nd1 c3 Qf8 c2 Nc3 Na5 Bb2 c1Q Qf6 Qce3 Rg8 Nd3 d8R Kb3 Qg5 b4 Rge8 Bd7 Kg8 Ba4 Qb5 Rd5 Nd7 Bh4 b8R Qf1 Kg7 e1B Ne4 Qfe2 Nhg5 Qb7 Be5 Ka3 Ne6 b3 Kf8 b2 Bg7 b1B Ne5 Qbb6 Qc4 Qb3 Rf7 Ra6 Rb5 Rf1 Rbb7 g1B Rb4 Bgf2 Rg1 Rb6 N6c5 Rg6 Ne6 Nc5 Rbb7 Qc1 Rd6 Qed2 Qe2 Bd4 Ng3 Bf5 Rbb8 Nd3 Ne4 Bef2 Rb4 Qcd1 Qe1 Qe3 Rg4 Qde2 Rdd8 Bfg3 Qf2 Ra1 Qf1 Be1
bB2RK2/1BPN3N/4PBk1/1bN5/7n/n1nn1q1q/2nb1rrN/Q2N1r2 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 d4 cxd4 g4 h6 Ra3 h5 Rf3 fxg4 f5 h4 Rf2 h3 Rf4 exf4 Nxh3 Kf7 Ng1 Ke8 Kd2 Kf7 Kd3 a5 Kc4 g5 Kd5 a4 c4 g3 e4 g4 h4 f3 e5 d3 f6 d2 c5 a3 e6+ Kg6 c6 f2 f7 g2 c7 g3 b6 a2 b5 a1N b7 Qf6 b6 Na6 b8N Ne7+ Kd6 Bb7 Qb3 d1N Nf3 g1R Bb2 g2 Qc4 Nc2 Bd4 Nc5 Qa2 Nd3 Bc3 Bh6 Nh2 Nde3 Na6 Qf3 Qa1 Rhg8 Bf6 Na3 Nc5 Raf8 Nc3 Nec2 Nd1 Ba8 b7 Bd2 b8B Nd5 Be2 Qh3 Bf3 Nc3 Ke7 Rf1 Bb7 d5 Rg1 d4 h5+ Kf5 h6 Kg6 Rh1 g1N h7 Nf3 h8N+ Kh5 Qa2 Rg2 Ng6 Nh4 Ne5 Kh6 Ned7 Kg6 Rg1 Re1 Qb2 f1B Rh1 Be2 Qa1 Rf1 Bc8 Ne5 Bb7 Bb5 Rg1 d3 Rh1 Bg5 Rg1 d2 Rh1 Nd3 Rg1 Rgf2 Rg4 Rg8 f8N+ Kh6 Nh7 Kg6 Rb4 Rg7+ Kf8 Bh6 Nb2 d1Q Rb3 Qdf3 Nd1 Bd2 Rb4 Kf5 Ra4 Rgg2 Rg4 Qc6 Rg7 Qe4 Re7 Kg6 Re8 Qef3
4R1N1/3bq3/1b1P2RQ/q1n2kbP/1rb1R3/Nq1RK1n1/r4N2/rnB1R3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 g5 d4 f5 Kd2 c5 e4 a5 b6 c4 d6 Ke6 b7 g4 b5 f4 h5 a4 b6 f3 e5 f2 d5+ Kf5 d7 f1B d6 a3 e6 c3+ Ke3 c2 e7 a2 e8R Nf6 Re4 Be7 Na3 Bc4 Ne2 g1R Nb5 g2 Qd4 g3 Bd2 c1N Rb1 a1Q Qd3 Na6 b8N Nc5 b7 N1b3 Nf4 Qaa5 Bc1 Nd2 Rb3 Nb1 Na3 Qe8 d8R Bd7 Rc3 Rd1 Nh3 g1B+ Nf2 g2 Qe2 Rd2 Rb3 Ra2 Qd2 Rg8 Rc3 Rg4 Nc6 Ra7 b8R Rh4 Rd4 Nfe4 Rcd3 Ng3 Re4 Bf6 Rbc8 Qe7 Rg8 Rf4 Rce8 Bg5 Rg6 Rh4+ Kf3 Rg4 Nd1 B1e3 Re1 g1Q Nf2 Bd4 Qe3 Qh2 Qd2 Qh3 Qe3 Bgf6 Qh6 Bg5 Red1 Bde3 Re1 Ra1 Ne5 Nh1+ Ke2 Bd5 Red4 Qa6 Nb5 Nb3 Rc3 Qb6 Kd3 R7a2 Na3 Qa5 Rdc4 Rf4 Neg4 Qg3 Nf6 Bb6+ Be3 Qf3 Ng8 Ng3 Rd4 Bf7 Rcc4 Qfd5 Bc1 Bfe6 Rb4 Nc5+ Ke3 Qb3+ Rd3 Bd5+ Re4 Bf7 Ree6 Re4+ Kf3 Rb4 R6e4 Bf6 Ke3 Bc4 Rd8 Bh4 Re8 Bg5+
r3nR2/R1q4B/1P6/3N1RQ1/R1nbKrN1/r1r1Pn2/R2bnq2/2q1Nk2 w - - 0 1 illegal: No possible last move
1bR5/Bb2bBn1/1bq1BP1r/B6R/5QBn/1q3qP1/2Nqk1bK/2R3n1 w - - 0 1 legal: proof: a4 a5 e4 c5 f4 f5 d4 b5 axb5 cxd4 g3 Ra6 Nc3 Rg6 h3 Rg4 hxg4 fxe4 f5 g6 Nce2 g5 Nf4 gxf4 Kf2 Kf7 Kg2 Kf6 c4 Ke5 b4 d5 f6 h5 g5 f3+ Kh2 e3 c5 Ke4 c6 e5 b6 h4 b7 e2 g6 e1N g7 d3 c7 d4 b5 h3 b6 d2 Bb2 Ke3 Qa4 d1Q Be2 f2 Qb3+ d3 Rc1 f1B Qc3 e4 Nf3 a4 Rg1 a3 Rh1 a2 Qc2 a1B Bc3 d2 Ng5 Bg2 Qb3 Na6 b8R Bb7 c8B Nc7 Nf3 Ne8 Be6 Be7 Qa2 Rh6 Ra8 Qb3 Rc2 d1Q Kg1 Q8d2 Ba5 Be5 Bf7 Bb8 Ra7 Q1c1 Rc8 Qc6 Kh2 Kf2 Nh4 e3 Bg4 e2 Qa4 Ke3 Nf5+ Kd3 Kg1 Qf3 Rh2 Qc6 Ne3 Nf3+ Kf2 Ng1 Qf4 Qbb4 Nc2 Qb3 Rh1 h2 Ra8 Bd5 Ra7 e1B+ Kf1 Bf2 Bfe6 Nf3 Kg2 Be4 Rc1 Ng1+ Kf1 h1Q Bf7 Ba8 b7 Bb6 Ra6 Ba3 Ra7 Ne7 g8B Ng7 Bfe6 Bf3 Bgf7 Nef5 Ra6 Nh4 Ra7 Be5 b8B Bb7 Ra8 Bd5 Ba7 Be7 Rh8 Qe4 Rac8 Bb8 Rh7 Rg6 Rh5 Rh6 Qf2 Nhf3 Kg2 Nh4+ Kh2 Qf5 Bd7 Bg2 Bde6 Qff3 Qd4+ Ke2 Qb4 Qca4 Qf4 Qc6
n1nBkq2/2rN2nb/1Q5b/8/r1R1p3/5BqR/PBRb1RPb/2bR2K1 w - - 0 1 illegal: No possible last move
5BN1/kr4qq/B1Q4R/1prb2B1/nB4N1/nKPq1P1N/1b3B1n/1q2q3 w - - 0 1 legal: proof: b4 c5 g4 a5 d4 cxd4 e4 f5 exf5 h5 gxh5 axb4 a4 Rh6 Ra2 Rh8 Ra3 bxa3 Kd2 d5 h4 Kd7 c3 Kc6 Kc2 Kb6 f3 g5 f6 e5 a5+ Ka7 f7 b5 h6 e4 h7 e3 a6 a2 h5 a1N+ Kb2 g4 h6 e2 Rh5 e1Q Bc4 g3 Be2 g2 Nh3 g1Q Nd2 d3 Nc4 d2 Bd3 d4 Ne5 Qe7 Bf5 d3 Ng4 Nc2 Kb3 Nd7 Ba3 Ngf6 Bb4 Na3 Qe2 Qh1 Qe6 Bb7 Qc6 Nb6 Bc8 Rb8 Rh4 Rg8 h8B Rg5 h7 Rc5 Rh6 Na4 Bg7 Q7e5 h8B Be7 f8B d1Q+ Ka2 Qa1+ Kb3 Bd6 Be7 d2 Bgf8 Qg5 Bd8 Qg7 Bde7 Ba8 Bd8 Rb7 Bde7 Nh7 Bh4 Nf6 Bf2 Qh7 Bhg7 Qg2 Be7 Qg3 Bgf8 Qge5 Bd8 Qg5 Bde7 Qgg7 Bd8 Nd5 Bde7 Ne3 Bg5 Nf1 Qe4 Kb6 a7 Nh2 Qg6 Rd7 Ba6 d1Q+ Qc2 Qdd4 Qe4 Qd3 Qg6 Bc6 a8N+ Ka7 Nb6 Rb7 Nd7 Bf4 Qe4 Bc1 Ndf6 Bb2 Ng8 Qab1 Qe6 Be4 Qc6 Bd5+
k2N1b1N/1q4B1/4q1P1/7b/NnB1R3/K1qPrn1B/n1qQNp2/1N2qr2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 e4 Kd7 g4 f5 e5 h5 d6 c5 d3 c4 Kd2 c3+ Kc2 h3 Kb3 c2 g5 f3 g6 f4 b7 h4 b6 Kc6 e6 f2 e7 h2 e8B+ Nd7 b8N+ Kb7 Bh3 f1Q Bf7 f3 Na3 f2 Qg4 Qc7 Qf4 Ngf6 Qc4 Qe2 Bb2 Qe6 Bc1 Ne5 d7 Nf3 Bf4 c1N+ Kb2 b3 Qc3 Na2 Bh6 Nd5 Na6 Ndb4 Ne2 Qc5 Rg1 h1Q Rg4 Qe1 Nb1 Rg8 Qd2 Qc3+ Ka3 b2+ Ka4 Rb8 d8N+ Ka8 Re4 Rg7 Bg8 Re7 Nf7 Bb7 Nc5 Rbe8 Bg4 h3 Nh8 h2 Bg7 h1Q Bf5 Bd5 Bh3 Bb3+ Ka3 Bd1+ Nb3 Rc8 Bf7 Rc5 Bg8 Rg5 Bf7 Rg1 b7+ Kb8 Bg8 Rf1 Bf7 Ka7 b8N Ka8 Nc6 Re8 Nd8 Re7 Be8 Qg2 Bb5 Qh1 Bc4 Qg2 Qh6 Re8 Nd2 b1Q Qe3 Qbc2 Nb1 Qg3 Qg5 Qc7 Qd2 Qb7 Rf4 Qd4 Nc5 Re7 Na4 Qdc3+ Bb3 Qef6 Rd4 Re3 Re4 Qe6 Nf4 Nh4 Bg2 Qg8 Bh3 Bh5 Ne2 Qgd5 Bg2 Qe6 Bh3 Qcc6 Bd5 Nf3 Bb3 Qcc7 Bd5 Qce5 Bc4 Qec3+
kB2rn1K/2R3q1/1B2P2b/q6b/p1Q1RN2/r2n1Rb1/2qRn1RP/4Bn2 w - - 0 1 legal: proof: g4 g5 a4 h5 f4 d5 c4 b5 axb5 gxf4 Bg2 e6 g5 e5 Bf3 Bh3 cxd5 Bc8 Na3 e4 Nc2 exf3 Ne3 Bb4 Ng4 hxg4 Qa4 Ba3 Qd1 Bf8 Kf2 Kd7 d4 a5 b4 f5 e4 c5 g6 Kc7 b6+ Kb7 e5 c4 g7 a4 d6 c3 d7 c2 b5 Nc6 d5 Rh3 d6 Nge7 g8R Ng6 Ne2 Bh6 Qf1 Nf8 Bd2 c1Q Ra3 Qc2 Be1 Nb4 Rb3 Qe7 d8B Qg7 d7 Kb8 b7 g3+ Kg1 g2 Kf2 Ka7 b8R Bb7 e6 Nd3+ Kg1 Rg3 Rc8 Rb8 b6+ Ka8 Bc7 Bc6 d8R Be8 Rd4 Bh5 Re4 Rh3 Rd8 Rc8 Rdd4 Re8 b7+ Ka7 Rc4 Nb2 Kf2 Qd7 b8B+ Ka8 Bc3 g1B+ Ke1 Bc5 Rg4 Bd6 Kf2 Qf7 Kg1 f2+ Kg2 Rd3 Rg8 f3+ Kh3 f4 Kh4 Qf5 Rg5 Qa5 Bb6 Be5 Rc7 Bd6 Qh3 f1Q Rg4 Qg2 Rd1 f2 Be1 Rc3 Qd3 f3 Qc4 Rd3 Rd2 Bdf4 Rb5 Ra3 Rf5 Nd3 Rgg7 Qg6 Rf6 Qh7 Rg2 f1N Rd1 f2 Rd2 Ng3 Rf5 Be5 Rf3 Bhg7 Kg5 f1N Ref4 Nf5 Re4 Bg3 Nf4 Bh6+ Kf6 Nd4 Rc6 Bg4 Rc7 Qh8+ Kf7 Qhe5 Kg8 Bh5 Rc6 Qc7 Kh8 Ne2 Rc5 Qd7 Rc7 Qg7+
N2n3N/3bn1B1/r7/bQKB1qqN/NnNrPp2/3P1k2/2q5/B1nqR3 w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 h4 Kd7 e4 Kd6 Ke2 Ke5 Kd3 Kf4 Kc4 g5 d6 a5 h5 c5 d7 f5 h6 a4 h7 g4 b6 a3 b7 a2 b5 a1N b6 Qf6 d8N Nc6 b8N Nge7 b7 Ra6 Be2 Nc2 Nd7 N2b4 Nf7 Nd8 Nb6 Bd7 Na8 Rg8 Nf3 g1Q b8N g2 h8B g3 Qa4 Qf2 N3e5 g1Q Qb5 g2 Bb2 Qd1 Nc3 g1Q Bg7 Qgg5 Na4 Kg3 d3 f4 Re1 Qff5 Bh5 Qfc2+ Bc3 Kg2 Nh8 Kf2 Bf7 Kg2 Qc6 Kg3 Kb5 c4 Ba1 c3 Bd5 Kf2 Nc4 Kf3 Bd4 Rg6 Kc5 Rd6 Qb5 Bg7 Be5 Bf8 Bb7 Rd4 Bd5 Qb2 Bg7 c2 Na5 c1N Nc4 Be6 Nd7 Qbc2 Nf6 Bd7 Bh6 Bg7 Nh5 Be5 Bf8 Bc7 Bg7 Ba5
5N1B/B1n1N3/qq3K1P/r5Nr/2Pn4/kNrrp1Q1/nn1N1R1b/1b5B w - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 c5 a4 cxd4 axb5 Rh7 g4 Rh8 Ra3 g6 Rg3 g5 exf5 gxf4 g5 Nc6 Rg2 Nb8 Rg4 hxg4 Kf2 e5 c4 Ke7 h4 Kd6 f6 a5 g6 d3 b6 g3+ Kf3 d2 Ke4 f3 Kf5 g2 f7 e4 h5 a4 b5 Kc5 g7 Kb4 b7 d5+ Ke5 a3 b6 d4 Bb2 d3 Be2 a2 Na3 a1Q Nb5 e3 Qc1 d1N Na3 f2 Qc2 f1R Nb1 d2 Qc1 Qa6 Nf3 g1R Ng5 Nh6 g8N Bf5 Rh2 Nc3 Bf3 d1N Ne7 Na2 Nd2 Bb1 Rf2 Nf5 Bh1 Nd4 Kf6 Bh6 Ba1 Nb2 f8N Ka3 Qd1 Ra7 Qf3 Rc1 Qg4 Rc3 Qg3 Nbc6 b8N Ne6 b7 Rd1 Nbd7 Qdb6 b8B Ncd4 Nc5 Nc7+ Nc6 Ra8 Ncb3 Rh7 Ba7 Rh8 Nf7 Bf4 Ng5 Bd6 Ne7 Rh7 Nde4 Rdd3 Ned2 Qc8 Bb8 Ra5 Ba7 Qca6 h6 Rf7+ Kg6 Rff5 Kg7 Rfe5 Kf6 Red5 Nf7 Rh5 Ng5 Be5+ Kf7 Ndb5 Nfe6 Na4 Qf4 Rc1 Nf8 Rc2 Qg4 Bh2 Bh8 Nd4 Qg3 Nb2 Kg7 Rcc3 Kf7 Nce6 Kf6 Nc7+
1N2n1Rn/pk4qK/1BrR4/Rq2r3/n4RPR/r1Q1qn1N/1n3P2/b6N w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 g3 f5 Bh3 b5 axb5 g4 Bg2 Bb7 h4 fxe4 h5 Bd5 Bf1 Bf7 Bh3 Bg6 hxg6 gxh3 Kd2 e5 b4 h5 c4 d5 b6 Kd7 b5 Kc8 g4 h2 c5 d3 Ke3 d2 g7 d4+ Ke2 h4 c6 h3 c7 d3+ Ke3 Nh6 g8R Qe7 Qc2 d1N+ Kd2 e3+ Ke1 e2 Kd2 e1N Ra5 e4 Ra2 Nf7 Qa4 Nc3 Ke3 d2 Kf4 d1N Kf5 e3 Kg6 e2 Qa5 Nb2 Bf4 Rh5 Bd6 Nd7 Nd2 Nf3 Bc5 e1Q Ne4 Qe3 Ng3 Re5 Kh7 Nca4 Qc3 Kb7 c8R Bg7 Rcf8 Nh8 Rf4 Rc8 Rd8 Rc6 Ra3 Nb8 Rd6 Na6 Ra2 Nc7 Ra1 Kb8 b7 Ne8 Ra3 Kc7 b8R Qf7 Rbd8 Kb7 b6 Qc4 Ra1 Qb5 Bd4 Ka6 b7 Bf6 b8N+ Kb7 N1e2 Bg7 Bb6 Bf6 Rhd1 h1R Ng1 h2 Nh3 Rf1 R1d5 h1Q Rad1 Qh2 Nh1 Rg1 R1d3 Ra1 Rc8 Ra3 Rd1 Qb3 Ra5 Qb5 R1d5 Bg7 Rh6 Qg1 Rdd6 Qa1 Rh4 Rh5+ Rh6 Nc4 Qd2 Ned6 Rcf8 Ne8 Qe1 Qae5 Qc1 Qc7 Rg8 Ba1+ Rg7 Qce7 Qc3 Re5 Re6 Ncb2 Rd6 Nf7 Rg8 Nh8+ Kh6 Qg5+ Kh7 Qg7+
2qR1b2/N1BR2nb/nB1p3b/2nR2q1/1nr1R1n1/1R1P2B1/5Pkn/1QK5 w - - 0 1 illegal: No possible last move
2R1N2q/4N1P1/q4N2/RbN1krRP/nb1b2r1/3b3p/2B3N1/bqQ2bK1 w - - 0 1 illegal: No proof kernel
1Qr1N1Kn/P2qk2q/4N2N/1R2B1n1/Bbp1q3/B4q1r/1r1n3P/N4r1N w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 a4 h5 Ra2 f5 Rc2 Be6 Rc6 Bd7 Rg6 f4 Rg5 Bf5 gxf5 Ra5 Rg6 Ra8 Rg4 hxg4 Kf2 g5 d4 b5 e4 c5 f6 b3 f7+ Ke7 a5 b4 e5 b2 e6 b3 a6 Nf6 a7 Rh7 Nh3 Nbd7 Bb5 c4 Na3 b1R Nc2 b2 Na1 Ne5 Qb3 Qd7 Ba4 Rc8 Qb8 Ng6 Rd1 Nh8 d6+ Kd8 d5 g3+ Ke1 g4 Kd2 f2 Kc3 f1R Kd4 f3 Ke5 f2 Bf4 Be7 f8B g2 Rd3 g1N Rb3 g3 Rb5 g2 Bg3 Qc6 d7 Ne4 Kf5 Ba3 Be5 Ng5 Kf6 N1f3 Bfd6 Rh4 Kg7 g1Q Kg8 Nd2 Bb4 Qd6 Bc5 Ke7+ d8N Qh1 Bb4 Rc7 Nf7 Qe4 Bc5 Bb4 Nh6 Ba5 Ba3 Bb4 Ng1 Rc6 Ne2 Rh3 Ng3 Qd7 Nh1 Rfc1 Qb7 f1Q Qc7 Qff3 d6+ Ke8 e7 Rf1 Qb8+ Rc8 Ng3 Rbd1 Nh1 b1Q Bab2 Qbd3 Bc1 Qdf5 Ba3 Kd7+ e8N Rb1 Bg3 Kd8 d7 Rb2 Be5 Ke7 d8N Qdd7 Ne6 Qh7#
Rq2N3/1q1k3N/3n2pq/NN2n1r1/rbPbPBpR/r2R2bQ/N1K5/8 w - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 axb5 h5 b4 hxg4 b6 c6 b7 Bd7 Bh3 Be6 Bf1 Bc8 b5 e5 f3 e3 b6 e4 Bc4 e2 Kf2 e3+ Kg2 Bf5 Bb5 Be4 fxe4 cxb5 d4 e1B Kf1 f5 Ke2 a5 Kd3 g6 c4 f4 h4 b4 d5 b3 h5 f3 d6 a4 h6 f2 d7+ Ke7 h7 f1Q+ Ne2 a3 Nc3 b2 Qb3 a2 Nb5 Ra3 Kc2 Bg7 Nec3 e2 Bf4 Nf6 Rh4 Nc6 b8N Ne5 b7 Ne8 Na6 Bg3 b8N e1B Nac7 Nd6 Ne8 Qh3 Nc6+ Ke6 Na5 Qb8 d8N+ Kd7 Rd1 a1R Na2 Bb4 Nf7 Rf8 Ng5 Rf5 h8R Qh1 Nh7 Rg5 Rd3 Ra4 Nac3 R1a3 Na2 Qb7 Qc3 b1Q+ Kd2 Qbg1 Kc2 Qgb6 Qe1 Qb8 Qf1 Q6b7 Rg8 Nc6 Qg2 Bd4 Qh3 Ne5 Nec7 Q8a7 Ra8 Qab8 Ne8 Qg1 Bc1 Qe3 Bd2 Qf4 Bc1 Qf8 Bf4 Qh6
1Rn1Bk2/p2rb1n1/1RBn1n2/B2bqrK1/1p5B/8/2PP1r1Q/1N1nBR2 w - - 0 1 illegal: No possible last move, all moves rejected
4n1Q1/1nbn1NB1/q1N1RNr1/1B4rB/1N1p1P1N/pK6/2qb3P/2k1r2n w - - 0 1 legal: proof: f4 c5 e4 f5 d4 fxe4 b4 cxd4 a4 h5 Ra3 b5 Rg3 Ba6 Rg4 hxg4 Ba3 Bb7 Bc1 Bd5 axb5 Bc4 Bb2 Be2 Bc1 Bf3 gxf3 Rh6 Qe2 Rh7 Qd1 Rh8 Be3 d3 Kd2 Kf7 Kc3 Ke6 b6 Kd5 b5 g5 f5 e5 f4 a5 f6 d2 b7 g3 f7 a4 b6 g2 Qg4 d1N+ Kd2 a3 c3 Rh5 Kc2 Qc7 Qh4 g4 Nd2 g3 Nc4 Bb4 f8N Nf6 Nb2 Ra6 Ng6 Nf2 Bd4 e3 c4+ Ke4 c5 d5 c6 e2 Nc4 e1N+ Kb3 Ned3 Qg5 Ne8 Nb2 Nd7 Nf3 g1Q Nh8 g2 Bc3 Ke3 Qg8 e4 Bg7 Rg5 Nh4 Kd2 Nf7 e3 Be2 d4 Bh5 Qf1 Rg1 Qc8 c7 e2 Rh1 Qb1 Re1 Qa8 c8B g1R b8N Nh1 b7 Rag6 Nc6 Bd6 Nf5 Bc7 Nh4 Nb8 Be6 Nd7 Bc4 Qa6 Bb5 Qd1+ Ka2 N3c5 Nd3 Rf1 Ndb4 Kc1 b8N Nb7 Bh8 Nf8 Nd7 Rfg1 Nf6 Nd7 Rf1 e1B Bg7 Bd2 Re1 Rf1 Re5 Re1 Re6 Qg4 Kb3 Qf5 Nbd5 Qe4 Ndb4 Qc2+
6n1/kB2rQq1/3KBqB1/p1pBb2P/rR5n/qbq1P3/N1N5/B1b2N2 w - - 0 1 legal: proof: d4 d5 f4 e5 dxe5 b5 c4 dxc4 a4 bxa4 g4 h5 f5 g6 fxg6 Qd6 Bg2 Qd3 Bf1 Qd8 b4 Bd7 g5 Bc8 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kf2 f5 Ke3 c5 Kf4 a5 h4 a3 h5 g3 e6 g2 Ke5 c3 e3 f4 b5 f3 b6 a2 g7 a1Q e7 c2+ Nc3 f2 g6 Be6 b7 Rh7 Qd5 Qa3 Nf3 g1Q Bg2 f1Q Na2 Qfd3 Bb2 c1B Nh2 Nd7+ Kd6 Qdc3 Nf1 Rb8 Ba1 Bf7 Qf5 Bb3 Rh4 Qb6+ Bc6 Qg5 Qe6 Qa7 Bf3 Ne5 Rb4 Qf6 Bd5 Nf3 Be4 Rc8 b8N Nh4 Nc6 Rb8 Nd4 Rb7 Nc2 Rb5 Rd4 Rb4 Bb7 Ra4 Rb4 Qf3 Qc4 Qff6+ Kd5 Kd7 e8B+ Kc7 Bf7 Nh6 g8B Kb8 g7 Bd6 Bg6 Be5 B8f7 Bd4 g8B Rg7 Be6 Re7 B8f7 Ng8 Kd6 Qf5 Be8 Qf6 Bd5+ Qb7 Bd7 Ka7 B7c6 Qa8 Bb7 Qaf8 Qd3 Q8g7 Qf5 Qg5 Qf8 Q5f6 Qf7 Be5+
k1qr3b/2B4B/2r1pnQb/3b1RpN/2N2PK1/qn1B4/PN2nb2/2B3B1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 g4 h6 g6 Bd7 g7 Bb5 g5 Qd7 g6 Qd8 Na3 Bd7 Rb1 Bh3 Rb3 Bg4 Rg3 Bc8 Rg5 hxg5 Ke2 Kd7 d4 b5 f4 c5 d6 Kc6 d7 Kb7 d5 c4 d6 b3 Nc2 e3 Kf3 c3 Qe1 b4 Rh3 e6 Rg3 b2 Qf2 b1Q Be2 b3 Bd3 e2 Ne1 c2 Kg4 b2 Re3 Ra6 Ngf3 Rc6 Ne5 Ka8 Nc4 Bb7 Re5 Qc8 d8B Na6 d7 Nc5 Rf5 Nb3 Bb6 Qa1 d8B b1N Bdc7 Qb2 Qf1 Qa3 Bg1 Nc3 Qh3 Ne4 Qh6 Nc3 Kf3 Nf6 g8B Bg7 Bh7 Rd8 Qh5 Bh6 g7 Qe7 g8N Qa3 Bd2 c1B Qg6 Bb2 Bc1 Rb6+ Kg3 Bd5 Kh3 Rc6 Kg3 Nd7 Nf6 Ba1 Nh5 Nf6 Nf3 Bb2 Nfd2 e1B+ Kh3 Ba1 Nb2 Bf2 Ndc4 Ne2 Nd1 Nd7 Kg4 Bh8 Ndb2 Nf6+
3R1nR1/1r5B/b2Rpr2/1Pk2q1p/2qr4/Nr1n1bN1/3K1QNP/2qR3R w - - 0 1 legal: proof: e4 c5 b4 d5 f4 dxe4 a4 b5 axb5 cxb4 f5 e6 f6 Kd7 Bb2 Be7 fxe7 g6 Be5 g5 Bf4 gxf4 e8R Kd6 d4 a5 c4 f5 g4 h5 d5 a4 g5 b3 g6 e3 g7 a3 Be2 b2 Qd3 a2 Qd2 f3 Qd3 f4 Qc2 f2+ Kd1 f1B Qc3 f3 Qb3 f2 Qa4 Nf6 g8N Bg2 Re7 Kc5 d6 Rh6 d7 Qc7 d8R Nh7 Bd3 e2+ Kd2 e1R Nf3 f1Q Red7 Na6 Rd6 Nb4 Na3 b1R Qc2 Rf6 Ne7 Rb3 Nh4 Qf5 Rd1 Bf3 Ng2 a1Q Be4 Nd3 Rg8 Qg6 Nf5 Rb8 Ng3 Nf8 Qa2 Qg4 Bh7 Qf5 Qb2 Rb7 Qc2 Kb4 c5 Re4 c6 Rd4 Qb2 Kc5 Qa2 Qd7 c7 Qc6 Qb2 Qcd5 Qc2+ Qc4 Qb2 Rb6 Qa2 Ba6 c8R+ Bc6 Rcd8 Bf3 Ke3 Rb7 Qf2 Qb1 Kd2 Qbc1+
2rkr3/1pN1R2P/3B2PK/q1Rb2R1/n2n4/NQ2q1Nb/4q2p/2Nqb2N w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 h4 g4 Qb3 Ra5 Qf3 Ra8 Qh3 gxh3 g4 h5 g5 Ra6 Be2 Ra8 Bg4 hxg4 Ke2 c5 Ke3 e5 d4 c4 a4 g3 f4 e4 d6 g2 d5 h2 f6 c3 g6 c2 f5 b3 Kf4 e3 Kg5 b2 a5 e2 h5 e1Q a6 Qc7 f7+ Kd8 f6 Qce7 d7 Nh6 a7 Ng8 h6 Q7e2 h7 Q2f1 Nh3 Qee2 Na3 b1B Bf4 c1Q Nf2 Qce1 Bd6 Nh6 Rg1 Ba2 Rc1 Qe7 Rc5 Qc4 Nh1 Bg7 f8N Qe8 f7 Qd1 Re1 Bb2 Re7 Qdd4 Kh5 Na6 Kg5 Rb8 a8N Qcd3 Nc7 Ng8 Kh5 Nf6+ Kh6 g1Q Be5 Qe1 Re6 Nb4 Bg3 Qb3 Re3 Qdc4 Nfe6+ Ke7 d8R Qcc3 f8N Bd7 Ng5+ Ne4 Nfe6 Nc6 Nd4 Rc8 Ne2 Bh3 Nc1 Qa5 Be5 Nc3 Ne4 Qed1 Neg3 Na4 d6+ Kf8 d7 Ke7 Re4 Bc3 Rg4 Qe6 Rg5 Be1 Bf4 Qee2 Be5 Qg8 Bf4 Qgb3 Re8+ Kf6 Re4 Qbe3 Ree5 Rhe8 d8Q+ Ne7 Qd5 Nc6 Qd3 Bd5 Qb3 Nd4 Re4 Qb4 Be5+ Ke7 Bd6+ Kd8 Re7 Qa5
r1q3R1/3bB2k/2BpP1np/3Prr1Q/1B1BrB2/n1KNR2q/R6q/6r1 w - - 0 1 legal: proof: h4 e5 f4 exf4 a4 a5 b4 g6 h5 gxh5 b5 h4 c3 Bb4 Na3 Be7 Nc2 Bd6 Nb4 axb4 a5 b6 axb6 b3 Rh2 Nf6 Rh1 Bb4 cxb4 Ng8 e4 Kf8 g4 Kg7 d4 c5 Kd2 f5 b7 h3 e5 h6 g5 d6 g6 h2 b6 c4 d5 b2 b5 b1R Ra2 f3 Kc3 f2 Ne2 Bd7 Bf4 Qc8 Nc1 Ne7 Qh5 Na6 b8B Rb4 b7 Nc7 b6 Re8 Nd3 Kg8 g7 Ng6 Be2 f1R Ba7 Kh7 b8B Rf3 Rha1 h1Q g8R Qh2 b7 Re6 Re1 Nb5+ Kc2 c3 Bc7 Re8 b8B Re4 Bd4 Na3+ Kb3 c2 Ba5 c1Q Bb4 Qe3 Bc7 Rf2 Bca5 Qeh3 Bd8 Rf1 Be7 Rg1 Bc1 f4 e6 f3 Bf1 f2 Bf4 Rf8 Re3 Rf5 Be2 f1R Bd1 Qb7 Kc3 Rfe5 Ba4 Qc8+ Bc6 Rf2 Bfg5 Rf6 Bf4 Rff5
1N2B1q1/2Nq1b1P/2R1Q1NR/k4PnN/8/K2r1q2/1Npbp1R1/1q1nbq2 w - - 0 1 legal: proof: f4 a5 b4 d5 e4 dxe4 c4 f5 g4 b5 gxf5 bxc4 b5 h6 Bb2 Qd3 Bf6 Qd8 Bg5 hxg5 f6 Ra6 f5 Rd6 Qg4 Rd3 Qd1 Rb3 axb3 Bd7 Qe2 Be6 Qd1 Bc8 d4 Kd7 Kd2 e5 Kc1 c5 Kb2 Kc7 h4 Kb6 h5 e3 f7 g4 b4 g5 d5 c3+ Ka3 a4 h6 c2 d6 c1Q+ Ka2 g3 d7 g4 h7 e4 Na3 e2 Rh4 e1B Rh3 g2 Rh6+ Nf6 Nh3 g1Q Bc4 e3 Nc2 a3 Nf4 g3 Rh3 g2 Rg3 e2 Nh5 Qf4 Ne3 Qf3 Rc1 Ng4 Qb3 Na6 Nd1 Nc7 Nb2 Bh6 f8N Ne3 Bf7 c4 Be8 c3 Ng6 Qgf1 Rg4 g1Q Rg2 Qe7 d8R Nd1 Qe6+ Qd6 Kb3 a2 Ka3 Bhd2 Rc2 Bb7 Ra8 Bd5 Ra6+ Kb7 b6 Qd7 b5 a1Q+ Kb4 Qb1 Ka3 Qd4 Rc1 Q4g7 Rc2 Qg8 Rc1 Kc8 b7+ Kb8 Rc6 Ka7 b6+ Ka6 b8N+ Ka5 b7 Ba2 Na6 c2+ Nd3 Bc4 b8N Bb3 Nb2 Bd5+ Qe3 Ne6 Nc7 Ng5 Qb3 Nc3 Rd1 Bf7 Qe6 Bc1 Rdd6 Bcd2 Qb3 Nd1 Ne7 Qf8 Rh6 Rg8 Qe3 Rg7 Qb3 Qg8 Qe3 Rg6 Qb3 Rd6 Ng6 Nc3 Qa2 Rd3 Qe6 Nd1+
1rn1B1K1/k4Bq1/n4R2/B1n5/rB1pqR2/BPrN2b1/p2R2Pn/5qQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h3 Bb7 f5 Bd5 Nc3 Bf7 Nd5 Bh5 Nf4 Bg4 hxg4 gxf4 Kd2 e5 c4 h5 g5 a5 f6 d5 f7+ Kd7 g6 Kc7 b3 Kb7 c5 d3 Kc3 e3 c6+ Ka7 g7 d2 c7 f3 c8R d4+ Kc4 e4 Rc5 a4 Ra3 e2 Rh2 e1R Ra1 a3 Rh1 h4 Rf5 a2 Bd3 e3 Ba3 h3 Rf4 f2 Bg6 f1N Ne2 h2 Nc1 e2 Nd3 Qe8 Kd5 Bd6 f8B Ne7+ Ke6 Na6 g8B Nc8+ Be7 Qc6 Be8 Qe4+ Kf7 Rb8 Rf6 Bg3 Beb4 Rh3 Qb1 d1Q Kg7 Qd2 Bgf7 Rc1 Kg8 e1N Rg1 h1Q b6+ Ka8 b7+ Ka7 Rf4 Nh2 Rgf1 Rc4 Rf6 Qh6 R1f4 Qf1 Qd1 Nb6 Rb1 Nc8 Rb2 Qd5 Ba5 Qe4 Rd2 Ra4 Qb1 Nc5 Qd1 Nc2 Qe1 Nb4 Qe3 Nba6 Qg1 Ra8 b8B+ Kb7 Bd6 Rb8 Bf8 Ka7 Ne5 Bh4 B3b4 Rc3 Nd3 Bg3 Ba3 Nb7 Bfb4 Nbc5 Rd6 Ka8 Rg6 Ka7 Rgf6 Qg7+
1K3k2/3br3/r1BQ3q/BrN1p3/q1B1P2q/R1p1n1P1/bR3b2/2r1RRR1 w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 Nc6 c5 Ne5 g3 Ng4 h3 d6 hxg4 dxc5 Rh5 c4 Rh2 Qd4 Rh1 Qd8 Kf2 h5 Kf3 f5 d4 a5 b4 c5 e4 h4 d5 h3 g5 e6 g6 a4 b6 h2 b5 c3 g7 c2 d6 a3 b7 c4 b8R a2 b6 Rh7 b7 Ra6 Ra8 Ne7 b8R Bd7 g8B Nd5 Rb2 Ne3 Bd2 c1R Na3 Re7 Ba5 c3 Ne2 e5 Bc4 Bh6 Rg1 Kf8 Nd4 h1Q+ Ke2 f3+ Kd3 f4 Nab5 f2 Nb3 f3 Nc5 Qh4 Bd5 Bf4 Bc6 Qh6 Be2 f1R Qd2 Be8 d7 f2 Rab1 a1Q Qd1 Qb6 d8R Qh4 Rd6 Qa4 Rf6+ Kg7 Ra1 Bd7 Ra3 Re1 Rd8 f1B Rh8 Qg4 Rhh1 Qh4 Rf5 Bg5 Rf4 Bfh3 Rff1 Bhe6 Qd2 Red1 Re1 Bf7 Rgf1 Rb1 Rhg1 Rdc1 Qd1 Kf8 Qd2 Nd5 Qd1 Be3 Qd2 Qd1 Kc4 Bf2 Qd3 Ne3+ Kb4 Qf6 Qd6 Ba2 Bc4 Qd8 Nd3 Qa4+ Kc5 Nc2+ Kd5 Qg5 Nc5 Qh6 Qg6 Ne3+ Kd6 Rh7 Qe6 Qdh4 Kc7 Rf7 Kb8 Re7 Rbe2 Rb4 Rb2 Rb3 Qd6 Rxb5+
5rb1/PBN1N1p1/1Bb2q2/KQRP2n1/1b1n1B1B/Nk3B2/2p1q1b1/3b2b1 w - - 0 1 illegal: No possible last move, all moves rejected
rRR1n2N/1nr1NbNq/n5p1/1P6/3BNk1n/2rR1qNK/Qp5P/r7 w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 exf5 h5 c3 hxg4 Ke2 d5 Qb3 b5 Qc4 e6 Qf4 b3 Qf3 b2 Ke1 b4 Bc4 b3 Qd1 Bb4 cxb4 dxc4 Kf1 Kf7 Kg2 Kf6 f4 c5 d4 g3 a4 e5 a5 e4 a6 c3 d5 e3 d6 e2 b5 e1R a7 c4 d7 c2 Be3 c1R Ra3 c3 Ne2 c2 Qd2 Qb6 d8N Rh7 Ne6 Na6 Nbc3 b1Q Bg1 Qe3 Ne4+ Kf7 f6 Kg6 f7 Kf5 f8N b2 Qa5 Nf6 Rd3 Ne8 Ng6 Bb7 Nh8 Bd5 Qa2 Rf1 Nc5 Bf7 Ne6 Rf3 Bf2 Rf1 Bg1 c1N Bf2 Kg4 f5 Nb3 f6 Nbc5 Bg1 Qf4 Bd4 Nb7 Rg1 Qc2 Rh1 Ra1 Rc1 Qb1 Rc8 Qc2 Rb8 g6 Ng7 Qcc7 Nf5 Re3 Ne7 Rg7 Rd2 Rc3 Rd3 Qh6 Rc8 Qc6 Rb8 Qh7 Rc8 Kh5 Kh3 g2 N2g3+ Kh6 Nf2 Qf3 Ne4 Bb3 f7 g1N+ Kh4 Be6 f8N Bf7 Ne6 Qd1 N6g5 Nf3+ Kh3 Nh4 Ne6 Qf3 Rb8 Rg8 Ng7 Rc7 Nf6 Kg5 Ne4+ Kf4 Rc8 Rb8 a8R Rc3 Rc4 Rc8 Rb8 Rc7 Rc6 Rd7 Rcc8 Rdc7 Nc6 Rf8 Ne7 Rac1 Ra8 Nf6 Rd8 Rh1 Rd7 Rb8 Rd8 Ra1 Rc8 Ne8 Ra7 Nbc5 Rb7 Ra8 Rbb8 Nb7
2BBn3/1pB2Bb1/2PnqN1p/1R3N2/1b3k2/K1B4p/PQ2rr2/Nr1n2b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 d5 dxc5 g5 Ke2 gxh4 Kd2 Bg7 Ke1 Bf8 Nd2 f5 Rb1 d4 Rb3 Be6 Re3 Bd5 exd5 Ra6 Re6 Ra8 Re4 fxe4 g4 Kd7 f4 e5 c4 h6 f5 e3 c6+ Kd6 f6 b3 g5 d3 f7 h3 c5+ Kc7 g6 b2 g7 b1R Qc2 e4 Kd1 Qc8 Qb2 Nf6 g8N Qe6 Nb3 d2 Kc2 d1N Ne2 Nbd7 Na1 Re8 Kb3 Ne5 Ka3 Bg7 f8B Nf7 Ng3 e2 Nf5 e1B Bf4+ Nd6 Bc4 e3 Be5 e2 Bc3 Re7 Rg1 Bf2 Rg5 Nfe8 Nf6 e1B Rh5 Kc8 c7 Bg1 Bb3 Rf7 Be7 Rhf8 Bd8 Re7 Rg5 Ne4 d6 Bd2 Ng4 Kd7 c8B+ Kc6 d7 N4d6 Bc7 Rff7 Bc2 Kd5 Bb3+ Ke4 d8B Kf4 c6 Be1 Nf6 Bd2 Bd4 Ba5 Rh5 Qc4 Bc3 Re2 Nd4 Qe6 Rb5 Rf2 Nf5 Re7 Nd7 Qg8 Nf6 Ree2 Bc4 Qe6 Bd5 Qe3 Bg8 Qe6 Bf7 Bb4+
3r4/r5p1/1r3Qp1/qn1kpr2/B2b3P/RN1N3K/nRP1R3/nN1Rb2R w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 Bb7 g5 Bc8 g6 hxg6 e4 d5 Qd3 f6 Bh6 Bb7 Qd1 d3 Bf4 d4 Be5 Bd5 exd5 fxe5 b4 Kd7 h4 Kd6 f4 a5 Kf2 a4 Kg2 d2 f5 e4 b6 e5 b5 a3 b7 e3 b6 d3 f6 a2 f7 e2 Nh3 e1B Nf2 Kc5 d6 Kd5 d7 Bc5 f8R Rh5 Kh3 Na6 b8R Nc7 b7 Nf6 Qf3+ Ne4 Qf6 d1R Rf7 d2 Bb5 Ra6 Nd3 Bd4 Ba4 Rf5 Ra8 Ra7 b8R Nc3 Rb2 N7b5 Rf8 Qc8 d8N Qa6 Ne6 Qa5 Nec5 Rc1 Nb3 d1R Rh8 Rd2 Rh5 Rcd1 Rg5 Rdf2 Rg2 Rdd2 Na3 Rd1 Rc1 a1N Nb1 Na2 Rgh2 R2f4 Re2 Rd2 Qf8 Rf6 Rd1 Rb6 Qf6 Rf5 Rc8 Rd7 Rc3 Rd8 Nbc5 Ra8 Ra3 Ra7 Nb3 Bg1 Qe7 Kc6 Nf2 Rd8 Nd3 Bd4 Qf6+ Kd5
Br3B2/2pbB1np/2Qn1r1k/4qPNr/1B1N4/p2Br1b1/2P1N3/K2R1n2 w - - 0 1 legal: proof: d4 b5 a4 g5 axb5 e5 dxe5 f5 e4 fxe4 h4 gxh4 b4 d5 Qg4 d4 Ba3 d3 Qd1 d2+ Ke2 Qd5 Nc3 Qd8 Rc1 dxc1R Ke1 Qd4 Rh3 Qd5 Rh1 Qd8 g4 Kf7 f4 Kg7 f5 a5 e6 a4 g5 h3 g6 h2 e7 e3 e8B e2 b6 Ra7 b7 Nc6 b8B Ne5 b5 Nh6 b6 Nd7 Kd2 e1R b7 Re4 Nb5 Ng8 Kc3 Rb1 Bb4 Qf6+ Nd4 Re5 Nge2 Kh6 g7 Nb6 Bc6 Ra6 Ba7 Bd6 b8B Nc4 Ba8 Bd7 Bac5 Re3+ Qd3 Qe6 Bba7 Bg3 Bf8 Qe5 Bac5 Nf6 Bce7 Nd6 Rg1 Rc1 Kb2 h1N Qc3 Nfe8 Qc6 a3+ Ka2 Kh5 g8N Ng7 Nf6+ Kh6 Ne4 Re1 Nc1 R1e2 Ng5 Rh2 Ka1 Rh5 Bd3 Rb6 Ne2 Rb8 Bf6 Rg8 B8e7 Rgf8 Rd1 Rf7 Bd8 Rf8 Bfe7 Rf6 Bf8 Bf4 Bc4 Ng3 Bde7 Nf1 Bd3 Bg3
1n4b1/1rR2B2/B6B/2R1Kp2/R1qn1Rrk/NQ2p1pq/PP1q1r2/1n3R2 w - - 0 1 illegal: No proof kernel
NBBNbr2/RB1KBN1b/2r2PP1/1pq5/2pnB3/bk6/q1qpQ1q1/8 w - - 0 1 illegal: No possible last move
n3N1Bb/1b1K2P1/2NN1N2/RR2n3/pQ1q1r1p/3P1NR1/2kqp3/3q2bq w - - 0 1 legal: proof: e4 g5 f4 b5 a4 d5 axb5 a5 g4 Bd7 h4 Na6 c4 Nb8 h5 Bc8 b3 Ra6 Bb2 dxc4 Be5 Rf6 f5 Rg6 Bf4 gxf4 g5 f6 e5 fxe5 hxg6 e4 Ke2 Kd7 d3 Kd6 g7 Ke5 b6 Kd4 b7 c5 b4 h5 b5 e5 b6 e3 Kf3 a4 f6 h4 g6 e2 f7 e1Q Bg2 c3 Nh3 c2 Rg1 c1Q Qb3 c4 Nf2 c3 Nd2 c2 Nfe4 Bc5 f8N Nc6 b8N Nge7 g8N Nd5 b7 Nb6 Nfd7 Na8 Kg4 f3 Kf5 f2 Ke6 f1Q Rb1 Qcd1 Ngf6 c1B Nd6 e4 Nfe8 e3 Bd5 e2 Rg3 Qh1 Nf3+ Ke3 Qb5 Rf8 Qb4 Ne5 Nc6 Rf4 b8R Bb7 Ndf6 Bb2 Rc1 Ba7 Rc5 Qed2 Ra5 Qb6 Ke7 Qd4 Bg8 Q2c3 Nh2+ Kd2 Nf3+ Kc2 Ke6 Qcd2 Ke7 Ba6 Rb6 Bb7 Rbb5 Qe4 Ke6 Bg1 Ke7 Nc4+ Kd7 Qd5 Ne4 Bh8 g7 Qd4 N4f6 Ne5+
1Q1r3K/pqn1Bb1B/1R1N3b/1P1r3B/pR1rP2q/q5r1/Bp1R4/2B1k3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 b4 exf4 a3 c5 a4 bxa4 c4 Qg5 d4 Qf5 d5 Be7 b5 Bd6 Na3 Nc6 dxc6 Qg5 Nc2 Bf8 Nb4 cxb4 c5 Qd8 Kd2 Ke7 Kd3 Kf6 Kd4 Kf5 h4 Kg4 Ke5 Kg3 e4 Kf2 c7 d5 c6 f5 h6 g5 h5 b3 h7 g4 h6 d4 Bd2 f3 Rb1 g3 Bc1 f4 Bc4 g2 Ne2 g1R Ng3 d3 Nf5 d2 Nd6 Be6 c8B Ne7 Kf6 Rg3 c7 Bf7 Bg4 Rb8 c8B Nd5+ Kf5 Rb6 Bh5 Qh4 Ke5 Nc7 Bf5 Rhg8 h8R Rc6 h7 Rc5+ Bd5 Bh6 Rb2 Ra8 Rb8 Rc4 h8B Rd4 Rb6 Rd8 Qc2 Ke2 Rh3 Ke1 Bh7 d1R Qh2 f2 Bf6 f1Q Be7 f3 Rd2 b2 Ba2 f2 Kf5 Qd3 Ke5 Rg5+ Kf6 Qa3 Rb3 f1Q+ Qf4 Qfh3 Rb4 Qc8 Qh2 Qb7 Qe5 Qh1 Qf4 Rg3 Qe5 Bg5+ Kg7 Qh4 Qf4 Rd7 Kh8 Bh6 Qg5 Rd8+ Qg8 Rd7 Qb8 Rd5 Rc2 R1d4 Rd2 Rd8+
3rR1R1/pP4K1/p3p1n1/1brPb3/3b4/pqR2BR1/BQ4Rn/2BnkN2 w - - 0 1 illegal: No possible last move, all moves rejected
nn2Q3/K1PRBpN1/2rrp1pR/1p2P3/6R1/2Nq2b1/1k4N1/3nbRqR w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 a5 g4 axb4 f5 e6 f6 Qe7 Nd2 Kd8 fxe7+ Kc7 Nb1 Kc6 h4 b6 h5 Ba6 h6 Bd3 Bh3 Bg6 Bg2+ Kb5 Be4 Bh5 Bg6 hxg6 gxh5 Kc6 Kd2 Kd5 Kd3 d6 e8N b3 e4+ Kc5 a4 Kb4 c4 g5 c5 d5 e5 g6 h7 b2 c6 g4 a5 g3 c7 b5 a6 g2 a7 Nf6 h6 Nfd7 Nf3 g1B Nc3 Nb6 Ne1 Bh2 Ng7 Bg3 Bg5 b1Q+ Qc2 Qc1 Ng2 Qg1 Rf1 Ka3 Qc1+ Kb3 Be7 Rg8 Qd1+ Kb2 Qa4 Rh8 Qc4 Rg8 Qc6 Rh8 Qe8 Rg8 Bd8 Bb4 h8R Rf8 h7 Rg8 Ne4 Bbe1 Be7 Rf8 Nc3 Rg8 Qd7 Rd8 Qe8 Rd6 Rf8 Rc6 h8R Rd6 R8h6 Rc6 Ke2 d3+ Kf3 d4 Ke4 d2 Rfh8 d1Q R1h4 d3 Rg4 Qh1 Kd4 Rd6+ Kc5 d2 R8h7 Qe2 Rh8 d1N R8h7 Nc6 Rh8 Rb8 a8R Qd3 R8h7 Rb7 Rd8 Nb8 Rd7 Na8 Rh8 Rd4 R8h7 Qg1 Rh1 Ra7 R7h6 Ra1 Qg8 Rc1 Qe8 Na6+ Kc6 Nb8+ Kb7 Rc2 Ka7 Rc1 Nd5 Rc6 Nc3 Rdd6+
Q1B5/RpBb1B2/1pk3r1/pR3BR1/1n3K2/3Nr3/pPr1Pr1B/1q4bn w - - 0 1 illegal: Other
k1B3Nn/BbrNp1bP/2q5/1q4QN/3RK3/pp2pPq1/2r3N1/1bN3B1 w - - 0 1 illegal: No possible last move, all moves rejected
2r2nq1/k2r1P2/1rR1rp1N/p1B1B3/3pB2q/1P1bB1R1/2BpK3/Rn5Q w - - 0 1 illegal: No possible last move, all moves rejected
4knN1/2r1p1rp/n3r2B/Nb1Pb1Q1/2Rp3B/1N2NNK1/p2P3r/B2b4 w - - 0 1 legal: proof: e4 d5 a4 c5 h4 f5 b4 g5 a5 gxh4 Bd3 d4 Ra2 Qd5 exd5 b6 Be4 fxe4 Ra4 Na6 axb6 Nb8 b5 Kd7 Rc4 Ke8 Rb4 cxb4 f4 a5 Kf2 b3 c4 h3 g4 e3+ Kg3 a4 g5 a3 f5 a2 c5 e2 b7 e1R f6 b2 b6 h2 f7+ Kd7 g6 Re4 c6+ Kd8 g7 Be6 c7+ Kd7 c8N Nh6 g8N Re3+ Nf3 Re2 Na7 Re1 Nc6 Bg4 Nc3 b1B Na5 Ra7 Bb2 Bd3 Nb3 Re6 Ba1 Na6 b8B Bg7 f8B Bb5 b7 Bf6 Qg1 Ke8 Nd1 Nf7 Ne3 Ne5 Bh6 Ng6 Bbf4 Nf8 b8N Rb7 Nc6 Rc7 Nca5 Bh5 Qg2 Bg4 Rb1 h1R Rc1 Rh2 Rc4 Bh5 Bhg5 Bg4 Bh4 Bh5 Nh6 Rg8+ Bfg5 Rg7 Ng8 Bg4 Bh6 Bh5+ Kf4 Bg4 Qg3 Bh5 Qg5 Bg4 Kg3 Bh5 Ng1 Bd1 Nf3 Be5+
3Nk3/b2N2B1/N1nrb2P/rqR1n2K/2b2p2/1Q1R1nRn/2R2P1q/r4R1n w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 e5 g5 e4 g6 hxg6 e3 g5 Bc4 g4 Bd3 exd3 c4 f5 h4 g5 b4 d5 h5 a5 h6 d2+ Ke2 f4 b6 g3 Kf3 g2 b7 a4 c5 d3 c6 d4 b5 g4+ Ke4 a3 b6 g3 Kf3 a2 c7 Be6 c8R Bc5 e4 Nf6 e5 Nh5 Ne2 Ra5 Rh3 Nc6 Qb3 d1B b8R d2 b7 d3 Nc3 Ba7 Nb5 Rg8 Ra8 Rg6 b8N Bc2 Bb2 d1Q Rc1 a1R Nd7 Qf1 Ned4 d2 Rd1 Qg1 Rf1 d1N Rab8 Bc4 e6 Qh2 e7 Rd6 Kg4 g1N Ne6 g2 Rg3 Nh3 Bg7 g1N Rb7 Bg6 Rbc7 Nb2 Kh4 Nd3 Kg4 Nd4 Rc5 Ngf3 R8c6 Qb8 Nd8 Bgf7 Rc7 Bcd5 Rc2 Bc4 Rc5 Nfe5+ Kh4 Ne1 Rd3 Bfe6 Rg3 Nf6 Rd3 Ne4 Kh5 N1f3 Nb7 Nfd2 Rg3 Bg4+ Kh4 Nd3 Rgg1 Kf7 e8R Ng3 Re3 Nc6 Nc7 Nde5 Rd3 Nh1 Rgg3 Bge6 Kh5 Ndf3 Na6 Ke8 Nd8 Qb5
rb3K2/k1N2Pb1/4BN2/N1rp1b2/2qn3n/R1BP1nQ1/1n6/r1NNqnB1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Ra3 g5 Rb3 gxh4 axb5 Bg7 b6 Bh6 b5 Bf8 Rb4 cxb4 Ke2 h5 Ke3 e5 g4 a5 f4 d5 c4 Kd7 b7 Kc7 g5 Kb6 g6 b3 f5 h3 d3 a4 g7 b2 f6 h2 c5+ Ka7 c6 a3 c7 h4 f7 h3 Qh5 a2 Qe2 a1B Qh5 Ne7 g8N Nbc6 b8N Nd4 Qg5 Bf5 Nc3 b1R Bd2 Qc8 Nge2 Ng6 Nc1 Nh4 Nd1 Bd6 Nf6 Rd8 Rg1 h1N Qg3 h2 Bc3 Nf2 Bh3 h1N Na6 Bb2 Rf1 Ra1 Bg4 Qb7 Re1 Qc6 Rf1 Qc4 c8N+ Kb7 b6 Bb8 Na7 Rc8 Re1 Rc6 Nc7 Rc5 Qf3 Ng3 Nc6 Bg6 Be6 Bf5 Nce8 Ka6 b7 Kb6 Re2 Ka6 Na5 Ka7 Bb4 Bc3 Ra2 Bb2 Nc7 Bc3 Ra3 Bb2 Kd2 e3+ Ke1 e2 Kd2 e1N Ke3 e4 Kf4 e3 Ke5 e2 Kd6 Nf1 Ke7 Bc3 Qg3 Nef3 Kf8 Bb2 Bc3 e1Q Bd2 Ne4 Be3 Nc3 Bg1 Na4 Nab3 Bc3 Na5 Nb2 Nce8 Bf4 b8B+ Ka6 Bd6 Ka7 Be7 Bb8 Nc7 Nc2 Bd6 Bd4 Bf4 Be5 Bd2 Ncd4 Nd7 Bf6 Bc3 Bh8 Nf6 Bg7+
1q2qq1b/r3p1N1/3n4/1n2r1Nn/1BN1b2N/PR1bRR2/3NPq2/qQ2K1k1 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 g6 h3 Bg2 hxg2 Bb2 fxg6 Ba3 g5 Bc1 g4 d4 Kd7 h4 Kd6 f4 b5 h5 g5 h6 c5 h7 c4 f5 g3 a3 c3 f6 c2 f7 b3 Kd2 b2 Qf1 g4 Qf5 b4 Ke1 b3 Rh6+ Nf6 Rh3 Bb7 Qd3 Nbd7 Qf5 Ne8 Qe4 Ndf6 Kd2 Ra7 Qf3 Qb8 Ke1 Nh5 Be3 Bg7 Nd2 b1B f8R b2 Qf5 c1N Rf7 Bd3 Ra2 b1Q Ra1 Qb5 Ngf3 Nb3 Nh4 g1Q+ Qf1 g2 Rff3 g3 Rb1 Rf8 h8N Rf5 N8g6 Bh8 Ne5 Qh2 Bh6 g1Q Bg7 g2 Nec4+ Kc7 d6+ Kc6 d5+ Kc5 d7 Re5 d8N Kd4 d6 Qf4 d7 Qf8 Re3 Bbe4 Rhf3 Nd6 Nf7 Qc6 d8N Qce8 Ng5 Qf2+ Kd1 g1Q Nde6+ Kc3 Bf6 Nd4 Ng7 N4b5 Rb3+ Kd4 Qe1 Qh1 Qg1 Qfh2 Ke1 Qf4 Kf2 Qf5 Qb1 Qc1 Qc2 Qa1 Qb1 Qf4 Ke1 Qh2 Na5 Qf2+ Kd1 Qg2 Ke1 Qh2 Nac4 Qg1+ Rf1 Qg2 Rg3 Qf3 Na5 Ke3 Rf2 Re6 Bc3 Re5 Nac4+ Kf4 Rh3 Kg4 Bb4 Qg2 Rh1 Kg3 Rg1 Kh2 Rff1 Qgf3 Rg3 Qg2 Re3 Qg3+ Rf2+ Qg2 Rf7 Kg1 Rff3 Qf2+
2K4R/bNQ1b1n1/bpbr1n2/N3P3/1P2Rb1n/N3N3/n3kBRn/2rN3q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 e5 Bg2 d5 cxd5 exf4 Be4 a4 Bc2 Nc6 Bb3 axb3 Ba3 Nb8 Bb2 Na6 Bc1 Nb8 Kf2 Ke7 h4 Kd6 d4 c5 e4 f5 a4 g5 h5 c4 h6 g3+ Kf3 b2 h7 g2 a5 g4+ Ke2 g3 Kf3 c3 a6 c2 a7 Nf6 Rh4 Be7 Nc3 b1N Rh6 Bd7 Ra6+ Bc6 Nge2 g1B Rh2 g2 Ng3 Ne8 Nf1 Ng7 Be3 c1B Qc2 Nd7 Nd1 Nc3 Bf2 Rc8 a8N Na2 Nfe3 Nf6 Nb6 Qd7 Ra3 Rhd8 h8R Qe8 R2h4 Qh5+ Rg4 Qh1 e5+ Kc7 Rc3 Rd6 Nbc4 Bd2 Na3 Kb6 Rc4 Rc7 Ke2 f3+ Kd3 f4 Qc1 Ka6 Rc2 Rc8 Kc4 Rc7 Kc5 Rc8 Be1 f2 Rgh4 f1B Bf2 f3 Re4 Bh2 Rb2 g1N Qc2 Bf4 Qc1 Rdd8+ d6 Rd7 d5 Bc4 Bh4 f2 Qc2 f1N Bf2 Nf3 Qc1 Rdc7 Qc3 Nh4 Qc2 Bd8 d7 Nh2 d6 Be7 d8N Rd7 Qc3 B6b5+ Nc6 Be1 Bg3 Bf2 Rc2 Bg1 Rg2 Bd5 Bf2 Rcc7 Kd4 Kb6 Qc1 Ba6 Na5 Rd8 d7 Bc6 Nac2 Kb5 Na3+ Ka4 Qc5 Rcc8 Qd6 Rc7 Kc5 Rcc8 N5c4 Kb3 Kb6 Rc7 Ndb2 Kc3 Na5 Rcc8 Qc7 Kd2 Nbd1 Ke2 Ka7 Re8 d8N Rf8 Ne6 Rfd8 Nc5 Rd6 Qd8 Rc7 Kb8 Be8 Qc8 Rcc6 Qc7 Bd7 Ncb3 Rc1 Nc5 Bc6 Kc8 Nf1 Nec4+ Kf3 Be1 Nh2 Bg3 Bge3 Bf2 Bd4 Nce3 Ke2 Nd7 Ba7 Nc5 b6+ Ncb7 Bg5 Rg1 Bh6 Rg2 Bf4
b5B1/b3bK2/r2bpNBn/kN2P3/1N1P2b1/n1rQq1Rb/7q/2BB1B1q w - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 f4 dxc4 g4 h5 f5 g6 Ra3 Ra5 Rg3 Ra7 fxg6 Ra5 g5 Ra8 Rg4 hxg4 Kf2 Kd7 Kg3 Kc6 Kf4 Kb6 Ke5 f5 e4 c5 h4 f4 d3 f3 h5 f2 g7 g3 h6 c3 g6 g2 h7 c4 Bg5 b3 Be3+ Ka5 Bd2 b5 Rh6 b4 Nf3 g1B Rh2 b2 Nh4 b3 Rg2 Qc7+ Kd5 Nh6 g8B Na6 g7 Qh2 e5 Nf5 Bg5 c2 Bf7 c1B g8B c3 Rg3 c2 Na3 b1B Ng6 b2 Nb5 Ra7 Bh6 Bg5 Nf4 c1Q Nh5 Qe3 Bg6 Bb7+ Ke6 Nb4 Qc2 Ba8 Nf6 Ra6+ Kf7 e6 Qd1 Nc2 Qf3 Kb4 a5 Na3 Qd5 Bd6 Qf3 Rc6 a6 Ka5 a7 Rc3 Qd5 Bc2 Qd4 b1Q Qe4 Bb7 a8B Bd1 Qd4 Bh1 Bf3 Bh4 Bfh5 Bg4 Bg5 Ba8 Qd5 Bh3 Bd1 Bg4 Bf4 Qd4 Bc1 Qe3 Bg2 f1B Qf3 Be2 Bf1 Bh3 Qe4 Beg4 Qd5 Qed2 Qc4 Bgc5 d4 Qe3 Qd3 Bg5 Nc7 Bb6 Ncd5 Ba7 Nb4 Bh4 Nd7 Bd8 Nf6 B8e7 Bde2 Nc2 Ba3 Bac5 Bg2 Qbh1 Bc1 Bb8 Bgf1 Na3 Bd1 Baf3 Ke8 Bf8 B8f7 Rg8 h8N Bfe7+ Kd7 Rc8 Bg8 Bba7 Nf7 Rc6 Ke8 Ra6 Nd6 Ba8 Nb5 Bcd6 Kf7 Nh6+
q1RB1b1B/1Rp1PN2/1bP1q2r/2n1R1R1/2bb1KB1/k7/1nbR4/3bqQr1 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Bg2 exd4 Nd2 f5 Ne4 f4 Ng3 fxg3 Bh3 Nf6 Bf1 Ng8 Kd2 Ke7 f4 Kd6 b4 g5 c4 a5 e4 g2 h4 d3 Ke3 d2 b6 g3 b5 Kc5 b7 Kb4 f5 d5 h5 g4 f6 a4 b6 a3 f7 d4+ Kf4 d3 c5 a2 h6 Na6 b8B Qe8 c6 Nc5 e5 Ba6 b7 Ne7 h7 Bc4 e6 Nc8 Ba7 Nd6 Nh3 g1B Ng5 g2 Rh2 g3 Be2 Bd4 Qf1 g1Q Bg4 d1B Rd2 g2 b8R+ Ka4 Ba3 Bc2 Re1 a1Q Rb7 Qh1 Bb6 g1B Re5 Qh4 Ba5 Qhe1 Bc3 Rg8 h8R Bgf2 Rde2 d2 Rh5 d1B Rd2 Rg6 Bab4 Rh6 Bb2 Ra6 B4a3 Qa2 Ba1 Qa8 Bc3 Be7 f8R Ra5 Re8 Bf8 Rc8 Rb5 Nf7 Rb1 Bab2 Bg1 Ba1 Ka3 Reg5 B4d3 Re5 Nc4 Rhg5 Nb2 Bb4+ Ka4 Ba3 Bc4 Bb4 Na6 Bd6 Nc5 Be7 Ka3 Bd8 Qb3 e7 Qh3 Be2 Qe6 Bg4 Bc3 Rg8 Bgd4 Rg7 Ba5 Rgg5 Bb6 Qh3+ Bc3 Rcb8 Nba4 Rd4 Qg1 Rd2 Bf3 Re1 Bh8 Be5 Nb2 Rc8 Qf2 Re4 Rg1 Qf1 Qe1 Bc3 Bfd1 Ree2 Bd4 Re4 Bf2 Bh8 Bd4 Ree2 Nca4 Ree5 Nc5
2n1b3/R1PN4/K1bb1bN1/2n1b1p1/1Nkq2R1/qrb1QnPR/B5Nr/1N6 w - - 0 1 illegal: No extended proof kernel
4qR2/1rR1NN1b/pr1r2Rb/N1Q2NB1/1brn1P2/2Nqn3/Pkbn2K1/8 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 f4 Kd7 Kf2 Ke6 d4 Kd5 h4 Kc4 h5 g5 h6 e5 h7 b5 d5 g3+ Ke1 a6 c6 g4 c3 e3 c7 e4 d6 b4 d7 b3 Rh6 e2 Rh2 b2 Nf3 g1N Qd2 g2 Kf2 e1B+ Ke3 g3 Qd6 Bh6 Rh3 Nf6 Qe5 Nc6 Nh2 Ra7 Nf3 Nd4 Nh4 Ngf3 Nf5 g1R Rh5 g2 Rg5 Nd2 Rg6 Re8 h8N Rb7 Nf7 Re6 Qa5 Qe8 d8N Reb6 Nc6 Rf1 Qa3 g1R Qd6 Be6 c8N Bd5 N8e7 Rf2 Ng5 Bg8 Nf7 Bh7 Qa3 N2f3 Qd6 Rc2 Qc7 Bd2+ Kf2 Rd1 Kg2 e3 Na5+ Kd3 c4 e2 c5 e1Q c6 Bb4+ Bd2 Ng4 Nc3 Qe4 Rc1 b1B Qe5 Qd5 c7 Qb3 c8R Ne3+ Kg3 Qa3 Be1 Nd2 Qc5 Qb3 Kh3 Qc4 Bh4 Qd5 Na4 Rc4 Nc3 Bc2 Rc7 Ba4 Rb1 Kc2 Bg5 Qe4 Rc1+ Kb2 Rc8 Qd3 Kg3 Nd5+ Kg2 Bc2 Rc7 Re1 Rd1 Ree6 Re1 Red6 Ree6 N2b3 Rg8 Nd2 Reg6 Rf6 Rh8 Rfd6 Rf8 Ne3+
2nk2bQ/R3b2K/2RrbB2/pPb5/P1rq3R/R3r3/n4RN1/N1r1b1Nb w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 Bh3 e5 dxe5 gxf4 g5 Bd6 Bf5 Bf8 Bg4 hxg4 Kd2 c5 a4 a5 h4 f5 e4 d5 b4 g3 g6 f3 Ke3 f2 Kf4 f1B g7 d4 b5 c3 e6 c2 h5 c4 e5 g2 e7 d3 Kg5 c3 Kg6 d2 h6 f4 h7 f3 Ra2 f2 Ne2 g1B Rh4 Nc6 Na3 Qd4 Bb2 c1B Nc2 Be6 Ra3 Nb4 Na1 c2 Qe1 d1R Qc3 Kd7 e8R Na2 Rc8 Be7 Rc6 Bg2 Qg3 f1B Bc3 Bb3 e6+ Kd8 Qg5 Bf2 Ng1 Bce3 Qg3 c1R Qe5 Nf6 g8R+ Ne8 Rf8 Be1 Qg7 Bh1 Rf2 Bfc4 Bb2 Rf8 h8N Nd6 Kh7 Re8 Ng6 Rc8 Nf4 Rc7 Ng2 Nc8 Rb6 Bd5 Ra6 R7c4 Rc6 Bf3 Bc3 Bh5 Bb2 Bf7 Bc3 B3g5 Bb2 Bc5 e7+ Kd7 Bc3 Rd3 Bb2 Re3 Bc3 Rd8 e8R Bge7 Rf8 Be6 R8f7 Ke8 Bb2 Rd6 Bc3 Kd8 Bb2 Bf6 Ra7 Be7 Bc3 Bd1 Bb2 Bh5 Bc3 Bhf7 Bb2 Qd5 Bf6 Qd4 Qh8+ Bg8+
2n2b2/2R1r2R/2pR1qP1/BBk2NB1/n2p1KQ1/b3n2q/n1BPr3/1b1n3B w - - 0 1 legal: proof: f4 a5 h4 g5 b4 b5 c4 e5 Na3 exf4 hxg5 bxc4 b5 Na6 Nc2 Nb8 Nb4 axb4 Kf2 Ke7 Kf3 Kd6 a4 f5 g4 h5 e4 b3 g6 h4 g5 c3 a5 c2 b6 c6 g7 h3 a6 h2 g6 b2 a7 b1N b7 Ne7 g8B Nc3 e5+ Kc5 e6 d5 Bg2 d4 Ra6 Rh7 Ne2 Na2 Ng3 Nd7 b8B Nb6 Bb2 c1B Bc3 Na4 Ba5 Ba3 Be5 Bd7 Bf6 Nc8 Bg5 Qf6 e7 Rf7 e8R Re7 Bb3 Rb8 Rf1 h1N a8B Nf2 Rd8 Re2 Rg1 Rb7 Bh1 Be6 Rf1 Re7 Bc2 Bc4 Bb7 Bd3 Qb1 Nd1 Ra7 Bc4 Rd6 Bd3 Bb3 Bc2 Ba6 Bd3 Qa1 Bb1 Rc7 Bc2 Rf2 Bb1 Kg2 f3+ Kh3 f4 Kg4 Qe6+ Nf5 Qf6 Rh2 f2 Rh7 f1N Bc2 f3 Kf4 f2 Bb5 Nfe3 Qc3+ Nc4 Qe3 f1Q+ Qf3 Qh3 Qg4 Nce3
r1n2r2/1b1BPb2/4nBQq/kq4bN/q1R3Rp/B5qP/Bp3K2/B1R3r1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 a4 exd4 Nc3 f5 Na2 fxg4 axb5 Nf6 b6 Ng8 b5 Nh6 Nb4 cxb4 Ra6 Ng8 Ra4 Nh6 Ra1 Ng8 f4 h5 c4 d5 e4 Kd7 b7 Kc7 f5 Kb6 e5 g5 e6 a5 f6 a4 f7 h4 h3 g3 c5+ Ka5 c6 a3 b6 g2 c7 g4 Bd3 b3 Bc4 a2 Qc2 g3 Qe2 d3 Bb5 d4 Bd7 d2+ Kd1 Ne7 Qg4 Bh6 Ke2 Bg5 f8B Na6 b8R Qe8 b7 Nc5 Bg7 Rf8 Bf6 d1B+ Ke1 d3 Ba3 Qh5 Ne2 Qh6 Rc1 a1Q Rc4 Qb1 Nf4 Qb2 Rf1 g1R Nh5 g2 Qe4 d2+ Kf2 Bg4 Rfc1 d1Q+ Qc2 Qb1 Qg6 Bf3 Rg4 Bd5 Rgc4 Qbd3 Rg4 Qb5 Rgc4 Nc6 e7 Bf7 Ba1 b2 Be6 Bd7 c8B Qda4 Bd5 Bde6 Bd7 Na7 Rc8 Bg4 b8B Bf3 Be5 Ne6 Bf6 Be4 R8c5 Nc8 Rd4 Bf3 Ba2 Bb7 Rc6 Rd1 R6c4 g1Q+ Ke2 Qg3 Rg4 Qd6 Kf2 Rg1 Rc6 Qc7 R6c4 Qg3+
1Q1rB1K1/1nP2qn1/5Nb1/2k1BbBp/BRpq3r/2P5/r2n2nN/1B2N1b1 w - - 0 1 illegal: No proof kernel
2N5/3bppP1/KN1n1r2/3R1PRq/1k1bbBRr/8/2q2n2/R1qbNRnQ w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b5 Nh6 b7 Ng8 b6 Qd3 Be2 Qd8 Bb5 cxb5 Ke2 Kd7 g4 Kc6 d4 a5 f4 h5 c4 h3 f5 h4 c5 h2 g5 b4 g6 Kb5 c6 h3 d5 b3 d6 b2 d7 a4 c7 a3 Ke3 a2 Kd4 e3 Qd3+ Kb4 Kd5 e2 Qd1 e1N Nf3 Nd3 Qc2 Bg7 Ne5 Ra6 Nf3 Bd4 g7 Nc6 b8R Nce5 b7 Rh4 Qg2 Rf6 Nc3 b1B Ne1 Nf3 Bf4 Bc2 Rf1 h1B Na4 h2 Nb6 Bd1 Ra8 Qe8 b8R Nf2 d8R Qa4 Ra6 Bd7 c8N Qc2 Ra3 Ng1 Rg3 Qc7 Qf3 Qc2 Rg5 Bg2 Ra8 h1Q Ra3 Qh3 Qe4 Qg4 Rg3 Qh5 R3g4 Bgf3 Rc1 a1Q Rb1+ Qab2 Ra1 Bfe2 Qg2 Bd3 Qh1 Qbc1 Nc4 Be6+ Kc6 Be4+ Rd5 Bd7+ Kb7 Rd6 N8b6 Nf6 Nc8 Ne8 N4b6 Rf6 Ka6 Nd6
1NN5/1QKNR1pb/1Rb4r/pn3Nq1/1r4P1/bbNR1q2/1qPB4/n5kr w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Nd2 b5 axb5 h5 Bh3 h4 Bg2 h3 Nb1 hxg2 Kf2 Ke7 Kf3 Ke6 Ke4 a5 h4 f5+ Kf3 Kd5 b4 d3 e4+ Kd4 b6 d5 e5 d2 b5 Bb7 h5 Bc6 h6 Qg5 h7 Ba3 e6 Nf6 e7 Nbd7 e8R Rb8 b7 Ne4 g4 Nd6 b6 Nb5 Rg8 Nc5 Qe1 d1R Rd8 Nb3 Nh3 g1Q Qe7 Qh2 Ra2 Na1 Ng1 Qd2 Rh2 Qb4 Nc3 Qb2 Bd2 Re1 Re2 Rd1 Nh3 Rh1 Nf2 Rh6 Nfd1 Rh1 Kg2 f3+ Kg3 f2 Ne3 f1B Kf3 f4 Nf5+ Kc4 Re3 d4+ Rd5 d3 Ke4 f3 Ke5 f2 Qc7 Rhf8 h8N Rf6 Nf7 Rfh6 Rd7 Be2 Re7 f1B Nd6+ Kc5 Nc8 Bg2 Bc1 d2 Rd3 d1Q Bd2 Bd5 Qd7 Bb3 Qc7 Ra8 b8N Kc4 Nd7 Rb8 b7 Qf1 Rd6 Bd3 Rg6 Qf3 Ke6 Ra8 b8N Ra6 Qb7 Rb6 Kf7 Bde4 Ke8 Bd3 Kd8 Bde4 Ng3 Kd4 Re6 Bh7 Rg6 Na7 Kc7 Rb4 Rd6+ Bcd5 Rb6 Bde4 Be1 Ke3 Bd2+ Kf2 Nf5 Kg2 Rb5 Bc6 Rb6 Qb1 Rb2 Qc1 Rb1 Qb2 Rbe1 Kf2 R1e3 Kg1 Rd3 Nb5+
NKb4b/N2N1Bk1/2rb2B1/3N1p2/r4Pn1/2n1p2N/1QR1PB1r/r1qrb3 w - - 0 2 legal: proof: b4 g5 a4 c5 h4 gxh4 Ra3 b6 d4 b5 axb5 cxd4 c4 Qb6 Rf3 Qd8 Rc3 dxc3 g4 e5 f4 a5 Kf2 f5 Ke3 Kf7 b6 h5 b5 d5 g5 e4 Kd4 h3 Ke5 h4 b7 a4 c5 c2 g6+ Kg7 b6 h2 c6 h3 c7 a3 Bg2 a2 Bf3 a1B+ Qd4 Ne7 Bh5 Rh6 Qb2 d4 Nc3 d3 Nd5 Ra4 Be3 c1B Bf2 Nd7+ Kd6+ Nf6+ Ke5 e3 b8N d2 b7 d1R Na6 Be6 b8N Bd2 c8N Be1 Na7 Qc8 Kd6 Qc1 Nc7 Bd7 Na8 Bc8 Qb1 Bd4 Qb2 Ng4 Nd7 Bdc3 Kc7 Bf6+ Nc3 Nd5+ Kb8 Bd4 Nf3 Bb4 Ng5 Bf6 Rg1 h1R Rf1 h2 Nh3 Ne7 Nd5 Bd6+ Ndc7 Nd5 Rg1 Kg8 g7 Nc3 Bf7+ Kh7 g8B+ Kg7 Bh7 Bfe5 Rf1 Rg1 Bhg6 h1R Bh5 Rf6 Bhg6 Rg2 Rg1 Rgh2 Rf1 Bf8 Rg1 Rc6 Rf1 Bf6 Nd5 Bd6+ Nac7 Rd2 Bh4 Qc2 Bh7 Bg3 Ng1 Kh6 Nh3 Bh8 Rc1 Kg7 Bhg6 Qb1 Rc2 Rc1 Nb4 Rdd1 Nd5 Be1 Bf2 Qa1 Qb7 Qb2 Qb3 Rca1 Qb6 Bc5 Na8 Qc1 Qb2 Bd6+
b3Kbr1/Bnp1Bp1B/2PQn1b1/1rP1B3/1b1bRN1N/4N1kB/8/r5qr w - - 0 1 illegal: No proof kernel
1r3k2/PKB1Rb2/2rpn2R/pR6/1b4BN/1n2nBbR/r1QP4/2rRb2q w - - 0 1 illegal: No proof kernel
NB2KNBQ/4n2N/b2np2R/6bn/1nk1p2b/1q4b1/N1BqPrPN/r7 w - - 0 1 illegal: No proof kernel forced: bxLB
N3RK2/rb1NBp2/R3P1rn/qRp1Q1R1/8/3N1pb1/3b1Pkr/1R2q1nq w - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 g5 e3 gxh4 Bd3 b5 axb5 e6 Bf5 exf5 Ke2 Ke7 Kf3 Ke6 Kf4 Kd5 b4 c5 d4 a5 g4 h5 b6 h3 b5 h2 b7 a4 g5 a3 g6 c3 e4+ Kc4 Ke5 a2 g7 f4 b6 h4 d5 c2 d6 f3 d7 h3 Nd2+ Kd3 Qe2+ Kc3 Nc4 Rh7 Bg5 c1B Qb2+ Kd3 Ne2 Bd2 Rhb1 Ra6 Kf5 h1Q e5 Nc6 b8N h2 b7 Qd1 Nb6 h1Q Na8 Bd6 Be7 Rh2 Nf4+ Kc4 Kg5 Nh6 Kf6 Nd4 g8R Ne2 Rg5 Qde1 Kg7 Qc7 d8R Ng1 Nd7 Rb6 Ne6 Kd3 b8R Ke2 Re8 Kf1 Nf4 Rc6 Rb6 Bb7 Kf8 Qd8 Rb4 Bb8 Rb6 Rg6 e6 Bc7 Nd3 Bg3 Qe5 Kg2 R6b5 Qc7 R1b2 Qd8 Rab1 a1R R2b3 Ra7 Ra3 Qb6 Ra6 Qa5
4b3/p1q1Q2R/1qn1K2q/2p2BPb/PnR2r2/RNR1br2/n1R1p2N/4k2N w - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 c5 bxc5 g5 Qg4 gxh4 Qf3 Na6 Qd1 Nb8 c4 d6 c6 Bh3 c7 Be6 c5 Bc8 c6 Bg7 Ba3 Bf8 Bc5 dxc5 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 a4 h5 f3 b5 d3 b4 Qc1 b3 Kg5 e5+ Kg6 b2 Kf7 e3 f4 e4 f5 e2 f6 e1N Bh3 e3 Nd2 b1Q Rh2 Ne7 Ra3 Bd7 c8N Bh6 c7 Nbc6 Nd6 Nd5 c8R Ndb4 Rc7 Be8+ Ke6 Na2 f7 Rf8 N6e4 Qb6 Ng3 Nc2 Nh1 Nc2b4 Qe1 Rc8 Rb7 Qdc7 Qe2 Rb8 Nb3+ Kc3 Nf3 Rd8 Rf2 Rd4 Nh2 Rf4 d4 Rf3 d5 Rf4 Bf1 h3 d6 h4 d7 Bg5 d8R Bh6 Nf3 h2 Rd4 h3 Bg2 Bg5 Re4 Bh6 Qe1+ Kd3 Rc2 e2 Rec4 Bg5 Qh4 Bh6 Qe7 Bg5 Ng3 h1B Nh2 Rf3 Bf1 Be3 g5 Bg2 Nh1 Rf4 Rc1 Bf3 R1c2 Bh5 Bg2 Rg8 Bf3 Rf8 Bg4 Rf3 Nf1 h2 Bh3 Rg8 f8R Rg7 Rh8 Rgf7 Rh7 R3f4 Nhg3 h1Q Nh2 Rf3 Rb8 R7f4 Rd8+ Bd4 Bf5+ Ke3 Rd6 Kf2 R2c3 Be3 Rd2 Ke1 Rdc2 Qg2 Nh1 Qh3 Na5 Bhg6 Nb3 Qh6 Bd3 Bh5+ Bg6 Qg7 Bf5 Qh6+
N1r3n1/PN1B1rBp/2nN1N2/r4p1P/Q2r3b/q2r1B2/1k3p1K/2b1Nb1R w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 g5 a4 gxf4 Na3 e5 Nb1 e4 Ra3 Qf6 Rc3 Qd8 Rf3 exf3 Kf2 Ke7 d4 Kd6 g4 b5 h4 c5 e4 f5 h5 b3 a5 b2 e5+ Ke7 a6 c4 d6+ Ke6 d7 Kd5 e6 b4 e7 b3 e8B c3 g5 c2 g6 Qa5 d8N Ke4 g7 Be7 d5 Nc6 d6 Qa3 Nd2+ Kd4 d7 Kc3 Bg2 b1R Nf7 b2 d8N Bh4+ Kf1 f2 a7 Ba6+ Nc4 Ra1 Bd7 b1R Bf3 Rb3 Kg2 f1R Nfd6 Rc8 Nb6 Rb4 Kh3 Rd4 N8b7 Bd3 Be3 c1B Na8 Kb2 Qa4 Rd1 Kh2 Bf1 Bf2 R1d3 Be1 Nh6 g8N Rc7 Nf6 Ng8 Bb4 Rc8 Bc5 Rf8 Bb6 Rf7 Bd8 Ra2 Be7 Ra1 Bf8 Ra2 Bg7 Ra1 Be4 f3 Bd5 f2 Nf3 Nge7 Ne1 Rc8 Bf3 Ng8 Qc4 Qc3 Qa6 Ra5 Qb5+ Qb3 Qa4 Qa3
4r1B1/2NR1n2/2r2kP1/Qb3B1p/5p2/1Bq3nN/Kr2prNP/1BBnb2b w - - 0 1 illegal: No possible last move, all moves rejected
qRR5/4b2p/1n1B1R1P/rPpnQ1N1/r1k5/1p2q1Nn/1q1qR1K1/1b2NR2 w - - 0 1 legal: proof: d4 a5 g4 b5 c4 bxc4 b4 f5 Bg2 a4 Bc6 e5 dxe5 fxg4 Be4 Nf6 Bc2 Ng8 Bb3 axb3 Kf1 Kf7 f4 Ke6 h4 g5 a4 c5 e4 d5 f5+ Kf7 e6+ Kf6 e7 Ke5 e8R+ Be6 a5 g3 f6 d4 b5 g4 f7 c3 a6 d3 h5 Kd4 e5 d2 a7 c2 h6 Nd7 Na3 Qc8 Qe2 d1Q+ Kg2 Ngf6 Bf4 Bf5 e6 c1Q e7 Bb1 Bd6 Nd5 Qe5+ Kd3 Rh2 Qdd2+ Ne2 Qcb2 Nc2 Kc4 Ne1 N7b6 Rh1 Qb8 Rc8 Qb7 e8R Be7 f8N Rg8 Kg1 g2 Ra6 Rg7 Kf2 g1N Ne6 g3+ Kg2 Nh3 Rf1 Rg4 Ng5 Re4 Kf3 g2 Ng3 g1Q Rb8 Qgd4 Rec8 Nf2 Kg2 Q4e3 Ra2 Rd4 Rf8 Nh3+ R8f2 Rh4 Rc8 Rb8 a8R Qa6 Re2 Rb7 Rab8 Qa8 Ra1 Ra7 Rf6 Ra5 Nd3 Ba2 Raf1 Bb1 Ne1 Rg4 Qf4+ Kc3 Qf5 Rga4 Qe5+ Kc4
5qkN/8/rr1p2qb/3PpB1p/KB4QP/bN1BnB1N/1Bn1qR2/1r5r w - - 1 2 illegal: No possible last move, all moves rejected
BkbR4/1NnR4/1p1r2q1/bKQp2R1/1n1P2B1/BP6/2r2R1p/nb1R2bq w - - 0 2 legal: proof: f4 e5 h4 exf4 a4 g5 a5 gxh4 Nc3 b6 Nd5 Bc5 axb6 Ba3 b7 Bf8 Nb6 cxb6 c4 h5 g4 f5 e4 d5 Ke2 Kd7 Kd3 Kc7 g5 a5 b3 h3 e5 h2 e6 f3 g6 a4 g7 h4 e7 a3 e8B f2 c5 a2 c6 f4 Bh5 f3 Bh3 f1N Be8 f2 Kc3 Bc5 Nf3 Rh6 Ng5 Ne3 Bg4 f1B Qc2 h3 Nf7 Qd6 Ba3 Bd3 Nd8 Na6 b8R Nb4 Nb7 Nf6 Rhd1 h1Q g8R h2 Rg5 Qg3 Rab1 a1B+ Rb2 Qgg2 Qc1 Bb1 d3 Ra7 Ra8 Ra4 Ra7 Nec2 Bed7 Bg1 d4 Kb8 Be8 Be6 Bd7 Qe4 Be8 Qg6 c7+ Kc8 Bc6 Ne8 Nc5 Bd7 Ba8 Ra6 Nb7 Ra4 Qe3 Ra5 Qe7 Rc5+ Kd2 Rc6 Ra2 Bb2 Qc5 Bc1+ Kc3 Na1 Rg2 Be6 Rf2 Bd2+ Kb2 Kd7 c8R Nc7 Rh8 Be1 Re8 Rd6 Rh8 Rh3 Re8 Rd3 Ref8 Rd2+ Kc3 Bef5 Rf6 Kc8 Rf8+ Rd8 Re8 Kb8 Rh8 Bc8 Rhf8 Nd3 Re8 Rd6 Rd8 Nc1 Kb4 Rc2+ Ka4 Bc3 Na5 Nd3 Nb7 Ne8 Kb5 Ba5 Bd7 Nb4 Bg4 Re6 Nd6 Rf6 Rad7 Re6 Nb7 Rf6 Bf3 Rd6 Bg4 Nc7+
B3N1N1/R1pN1b1k/K1P5/bpPnr3/1q1Qqp2/1nqN4/3Rnn2/RN4r1 w - - 0 1 illegal: No proof kernel
NRq3b1/p2R3N/n3kNqb/P5QK/p5N1/1P1r2R1/rrn2pNB/3b3b w - - 0 1 legal: proof: c4 e5 f4 exf4 a4 g5 h4 gxh4 e3 d5 cxd5 b5 a5 Ke7 Bc4 Kd7 Bb3 Ke8 Ba4 bxa4 Kf2 Ke7 Kf3 c5 d4 f5 g4 h5 d6+ Kf6 d7 h3 b3 h4 d5 c4 g5+ Ke7 e4 c3 g6 h2 g7 c2 e5 h3 d6+ Ke6 Ne2 Qf6 d8N+ Kd7 Ne6 Na6 Nd2 Qg6 Nf1 Nh6 g8N Ng4 Rg1 h1R Ng5 h2 Qd5 Bh6 Nh7 Ne3 Rg3 Rg1 Qb5+ Ke6 d7 Rg2 d8R h1B Ngf6 Bd7 Bd2 c1Q Nh2 Qc8 Nhg4 Nc2 Rd1 Be8 Bc3 Bf7 R1d7 Bg8 Bd4 Rb8 Bg1 Rb6 Bh2 Rd6 Nc1 Rd1 Nd3 Ra1 Rf8 Ra2 Ne1 Rd2+ Ng2 Rd3+ Kf2 f3 Qc5 Qc6 Rb8 f4 Qe3 Qc8 Qd2 Kf5 e6 Rb2 e7 Ke6 e8N Ra2 Kf1 f2 Ke2 f1B+ Kf2 f3 Nc7+ Kf5 Qe3 Be2 Na8 Bd1 Qg5+ Ke6 Rh3 Bf7 Kg3 f2+ Kh4 Rd8 Rf3 Bg8 Rg3 Rd2 Rg7 R8d3 Rd7 Ne1 Nh5 Rdb2 N5f6 Qe4 Kh5 Nc2 Rc7 Qf5 Rd7 Qg6+
1NrnbnR1/K1rRb1Rq/1pp1P1Nk/4Q3/n3N3/2B1p3/n1P1r3/2Nr3N w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 d5 f5 Bd3 e6 dxe6 Ra4 e5 Ra8 Be4 fxe4 Kd2 h5 Ke3 d5 Kd4 b3 f4 h3 g4 c6 a4 b2 e7 Kf7 Kc5 Kg7 a5 e3 f5 h2 f6+ Kh6 g5+ Kg6 e6 h4 f7 h3 a6 d4 a7 d3 Ne2 d2 Rg1 h1R Ng3 h2 Nc3 b1N Na2 Nc3 Bb2 Qd3 Kb6 Nh6 e8N Bd7 Nc1 Na2 Nd6 Rh7 Nde4 Be8 Bc3 Be7 Qf1 d1N Qf4 Nb2 Qe5 Rg7 Rd1 Re1 Nh1 Kh5 f8N Re2 Ng6 Nf7 Rd2 Nd8 Rb1 Qc4 Rd7 Qd3 Ra1 Na6 Rb1 Rc8 a8N Nc5 Ka7 b6 Nc7 Nba4 Na6 Rf7 Nb8 Rh7 Nhf2 h1R Rb4 Rd1 Nh1 Bf8 Rg7 Be7 Rd4 Nd7 Rd6 Nf8 Rd7 Ba3 Nh4 Be7 g6+ Bg5 Rg8 Kh6 g7 Be7 Ng6 Rh2 Rh8 Re2 g8R Qd2 Rg7 Qe1 Rhg8 Qh4 Nf4 Qh2 Rg1 Rf7 R1g7 Qh3 Ng6 Qf5 Nh8 Qh7 Ng6 Bb4 Nh8 Nb7 Rd5 Rfc7 Rdd7 Be7 Ng6 Nd8+
N2NK1R1/1r1p2b1/p4NB1/n2Ppb1N/n2pR1R1/8/nqPkq1Q1/3rN1b1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 d5 gxh4 Be3 Bb7 Bd4 cxd4 Na3 Ba6 Nb1 Bc8 Kd2 Kf7 g4 Kf6 f4 h5 b4 e5 g5+ Kf5 g6 a6 b6 h3 b7 e3+ Kd3 e2 Kc4 Ke4 b5 Ke3 f5 e1B g7 h4 f6 h2 b6 h3 f7 Qf6 Na3 Ne7 Kc5 Bf2 g8N Nbc6 b8R Ra7 b7 Nb4 Nf3 Na2 Nb5 Bg7 f8N Nc6 Ng6 Bg1 Nf4 Na5 Nh5 Qd8 Kd6 Qb6+ Ke7 Rh6 Nc3 Qb2 Bd3 Rf6 Ne1 Rf1 Qg4 Kd2 Ng2 Rd1 Na4 Nb4 Ra8 Na2 b8N Bb7 Ngf6 Bc6 Bg6 Rb7 Ke8 Bb5 Nc6 Bd3 Ne1 Bf5 Qg5+ Be3 Rg1 h1N Qg2+ Nf2 Rc1 h2 Nb6 h1Q Nd8 Qh4 Rc8 Qg4 Na8 Qe2 Rb1 Ne4 Rb8 Qa1 Rb3 Bf2 Re3 Nc5 Re4 Qc1 Qh2 Qa1 Rgg4 Qb2 Qg2 Na4 Nf7 Qc1 Ke7 Qa1 Rg8 Qc1 Ke8 Bg1 Nd8 Qb2
3N2q1/K2pp2k/3Br1nN/pRp2Q1n/1q1nP1P1/R3R2R/3R3N/2r1qbb1 w - - 0 1 illegal: No proof kernel
q3B3/2N3RK/2Pp2r1/2N1p1rq/bqn1N1Nk/1RNPp1rn/5b1p/3R1Q2 w - - 0 1 illegal: No possible last move
1r4nq/Q2R3r/1pRBnB1r/7R/3N1b1P/p1p1R1p1/bPn2p1K/3k1B1R w - - 0 1 illegal: No possible last move
N1B1KNBr/p4npb/1pqprp2/6B1/4N2r/RPQ1bkP1/n1p5/N6N w - - 1 2 illegal: No possible last move
NrB1B3/2bQ2P1/2RBr1n1/NqB5/BqQrqrK1/8/5P2/2qn3k w - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 fxe4 h4 b5 a4 g5 hxg5 d5 c4 b4 cxd5 Nf6 a6 Bd7 Ra3 Bb5 axb5 Ng8 b6 Bh6 Rf3 Bg7 Rf8+ Bxf8 Ke2 Kd7 g4 Kd6 d4 c5 g6 h5 g5 e5 b7 h4 g7 b3 a7 b2 g6 e3 Kf3 e4+ Kg4 c4 Qe1 h3 Qd2 c3 Qc2 h2 Nd2 b1R Ngf3 e2 Bh3 e1R Ng5 e3 Ba3+ Rb4 Ne6 e2 Nc7 Na6 b8B Qe8 Nb3 Ne7 g8B Nc5 g7 Ng6 Na5 Nd3 Bf7 Qb5 Be8 Nb2 Qf5 Rh5 Qf4+ Re5 Rf1 h1Q Rg1 Ra1 Rc1 e1Q Rc2 Nd1 Rc1 Qhe4 Rc2 Ke7 d6+ Kd8 d7 Ke7 d5 Kd6 Rc1 c2 d8Q+ Kc5 d6 Kd4 d7 Bd6 Qg5 Re6 d8Q Rc4 Qge7 Qeb4 Qed7 Rb1 Qg5 Rb3 Qc5+ Kd3 Qcc6 Ke2 Qd5 Rf3 Q5c6 Qb3 Bc5 Rd4 Qd5 Q5b4 Qc4+ Qbd3 Nb5 Be5 Bbd6 Rb8 a8B Ke1 Nc7 Qf1 Qa6 Qfb5 Bc6 Ke2 Na8 Ke1 Bf8 Bc7 Bfd6 Ke2 Bb7 Ke1 Bc8 Ke2 Bg2 Ke1 Bh1 Kf1 Bg2+ Kg1 Bf1 Qbb7 Bb5 Kh1 Ba4 Q7b6 Qc4 Qbc6 Ra1 c1Q Rb1 Qbd2 Rb5 Qb4 Rb6 Qcb5 Rc6 Rxf4+
kqBrR3/4b3/3qNrq1/1NQ1bqQ1/1Np5/qNrPR3/1KP3b1/1N6 w - - 0 1 legal: proof: e4 b5 b4 d5 a4 dxe4 axb5 a5 b6 Bh3 f3 exf3 b5 Bf5 Ba3 Bd7 Bb4 Bc8 g4 axb4 h3 f5 Ra2 g5 Ra1 f4 Bc4 Nh6 Bf1 Nf5 gxf5 Nc6 h4 g4 Ra2 Ne5 Ra5 Nf7 Ra1 Ng5 hxg5 Bd7 Bc4 Be6 Bf1 Bc8 f6 Kd7 b7 h5 b8Q e5 d3 c5 Kd2 g3 Kc1 c4 f7 h4 b6 Kc6 g6 g2 g7 h3 g8N f2 b7 e4 Qh5 b3 Ra3 h2 Qe2 e3 Qd1 f3 Qe5 e2 b8N+ Kb7 Qd4 e1B Nh6 Qd6 Qg4 Bc3 Qg7 Bh3 Qg5 Be5 Nf5 Be7 Na6 Rhd8 Ne2 g1Q f8N Bg2 Ned4 Ka7 Be2 f1Q Nfe6 f2 Bg4 Rab8 Ra1 Ka8 Nb5 Rb7 Nfd4 b2+ Kd2 Ra7 Nb4 Ra6 Nb3 Ra3 Na5 Rc3 Nb3+ Kb8 Ra8+ Kb7 N1a3 b1Q Bf5 Qb2 Nb1 Qa3 Rc8 Qb8 Qdh5 Ka8 Bg4 Rd7 Re8 Rd8 Nd5 Qad6 Nb4 Qc1+ Ke2 Qb2 Kd2 f1R Bf5 Qgc5 Bg4 Rf4 Re1 h1Q Re3 Rf6 Bf5 Qa2 Bh3 Qh2 Kc1 Qg3 Bf5 Qaa6 Kb2 Qcc8 Qhg4 Qcc5 Qd4 Qf3 Bg4 Qf5 Bh3 Qcb6 Qc5 Qba5 Ng7 Qg6 Bc8 Qaa7 Ne6 Qad7 Ned4 Qdf5 Ne6 Qa3+
1Kbr2r1/r1B2RQ1/q4N2/1pR5/p1Q1nQ1N/Q1Pb3P/1Q4q1/rn4k1 w - - 0 1 legal: proof: d4 b5 b4 f5 g4 e5 e4 h5 gxh5 a6 exf5 c5 a4 cxd4 a5 Bc5 Bg2 Bb6 Bc6 Nxc6 axb6 Nxb4 Bb2 Nc6 Bc1 Nb8 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kf3 g5 h6 a5 h3 d3 b7 g4+ Kg3 d4 f4 e4 h7 e3 Nc3 a4 Qf1 d2 Nf3 d1R Qc4 e2 Nh4 e1R Rf1 Nd7 b8Q d3 Qa7 d2 Ne4+ Kg7 f6+ Kh6 f7 Kh5 f8Q Ngf6 f5 Nc5 Kf4 g3 Ke5 g2 Qag7 g1Q Qfe7 Qa5 Kd6 Qa6+ Kc7 Nb3 Qa3 Ra7+ Kb8 Rg8 Rf2 Qg2 h8Q+ Nh7 Qgb2 Rg1 Qhd4 Ng5 f6 Rd8 c3 Rde1 f7 d1B f8Q Bc2 Qd2 Bd3 Qdf4 Nd2 Qg7 Nb1 Be3 Rc1 Bb6 Rcd1 Bc7 Rg8 Nd6 Ne4 Re2 Rd8 Ne8 Rdf1 Qfd6 Rf8 Qf4 Rg8 Re3 Rh1 Rg3 Re1 Rg6 Rd1 Rc6 Nbd2 Rc5+ Qg5 Nf5 Qg2 Qh2 Rh1 Re1 Rg1 Re2 Ra1 Rf2 Nb1 Qf8 Kg5 Nh4+ Rd5 Rf7 Kh5 Nf5 Rd8 Nf6+ Kg5 Nd6+ Kh4 Qg7 Qg4 Qhd2 Kg3 Nf5+ Kf3 Qh2 Qg2 Nh4+ Ke3 Qbb3 Kf2 Qbb2+ Kf1 Qf4+ Kg1
k2qQrQ1/3r3r/q1N2pp1/Q4b2/2P1KQ1Q/qrN3B1/2P1B1n1/5Rn1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 a4 b5 f4 c5 d3 e5 a6 exf4 a5 c4 dxc4 b4 a7 Bc5 Ra2 Bb6 axb6 Rh4 b7 Rh3 Ra6 Rh5 Rh6 Rh3 Rh8 Rxh8 Kd2 d5 Kd3 Kd7 e4 Kc7 h4 g6 h5 g3 e5 b3 e6 d4 e7 g2 e8Q b2 h6 f3 h7 f2 Ne2 g1Q Qe4 f6 Rh5 Nd7 Rh3 Ne5+ Kd2 d3 Ke3 d2 Rf3 Ne7 Qe1 d1R Nbc3 b1R Rf5 Nf3 Qh4 Rb3 Rf4 Rd7 Nd4 Nf5+ Ke4 Ne3 Be2 f1Q Nc6 Qh3 Bb2 Rf8 h8Q Ng2 Qg8 Qb6 Ba3 Qa6 Bd6+ Kb6 Qc1 Ng1 Rf1 Rb8 a8Q Rh7 Qcf4 Bf5+ Kd4 Rc8 Kd5 Rcc7 b8Q+ Rb7 Qc8 Rbf7 Qd7 Qe3 Qe8 Qc1 Kd4 Qca3 Kd5 Rd7 Kd4 Qac8 Qa5+ Kb7 Kd5 Qa8 Kd4 Qa6 Kd5 Bh3 Ke4 Be6 Qfh6 Bh3 Bg3 Ka8 Q6f4 Bf5+
4rKBn/1nB5/1n2N1B1/2R2P1n/Q2pP3/2r2BBR/2npn3/1kbr1Q2 w - - 0 1 legal: proof: d4 a5 b4 b5 h4 g5 a4 gxh4 axb5 c5 b6 cxd4 b5 Nc6 Nc3 Nb8 Na2 Ra6 Nb4 Ra7 Na2 Ra8 e4 f5 Bd2 f4 Nb4 axb4 Bc1 Qc7 Ne2 Qc5 Ng1 Qf5 f3 e5 exf5 e4 Qe2 e3 Qd2 Bb7 Qd1 Be4 fxe4 Ke7 Qd3 Kd8 Qd1 Ke8 Ke2 Ke7 Kd3 Kf6 Kc4 Ke5 g4 h5 g5 d5+ Kd3 h3 c4 h4 g6 f3 c5 h2 g7 f2 c6 h3 b7 b3 c7 b2 c8B b1R b6 e2 Ra3 e1N+ Ke2 d3+ Ke3 d2 Qg4 Rh7 Rd3 Nh6 g8B Re7 Bg2 Na6 Bf7 Nc5 Ne2 Ra3 Qf3 Rc3 Bg6 Nf7 Ba3 Nh8 Nd4 Rd1 Be6 Bg7 Rf1 h1N Bg8 h2 Ne6 Ng3 Bb4 h1N Ba5 Ne2 b8Q+ Rc7 b7 Nhg3 Rg1 Nh5 Qe8 Re7 Qa4 Bf6 Qh3 Nc2+ Kf3 f1N Kg4 Bg7 Kg5 Nfe3 Bf3 Nc4 Qf1 Nb6 Rg3 Bf8 Rh3 Bg7 Rd4 Bf8 Rc4 Bg7 Nc7 Bf8 b8B Nb7 Rc5 Bg7 Qc6 Kd4 Qa4+ Kd3 Ne6 Be5 Kh6 d4 Bc7 Bd6 Rc4 Bc5 Bg3 Ba3 Rc7 Bc1 Rc5 Nd7 Bd8 Nb6 Bdc7 Nb4 Qb5+ Kc2 Qe8 Kb1 Qa4 Re8 Kh7 Nc2 Kh6 Nf6 Kg7 Re7+ Kf8 Nh5 Qc6 Re1 Qe8 Rd1 Qa4 Re8+
2nN3R/3N2BQ/P2Nr1Q1/1K1b3p/pr3q1n/k6n/1pq3PN/3Bn1N1 w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 a6 b4 Kd7 h4 gxh4 b5 Ke8 a4 axb5 a5 c5 Ra3 Bg7 Ra4 bxa4 d3 c4 d4 Be5 Qb3 Bd6 Qd1 Bc5 dxc5 Qc7 Qd2 Qd6 Qd1 Qd8 Kd2 Kd7 Kc3 b5 Kb4 h5 f4 e5 d6 Kc6 f6 c3 f5 c2 f7 h3 f8N h2 f6 e4 a6 e3 d7 e2 f7 e1N Bb2 c1Q Ne6 Qh4+ Bc4 Qhf4 f8Q Rh6 Qf6 Ne7 Qd3 Bb7 Qfg6 Nc8 Nd2 Qc2 Ndf3 Ra7 Ka5 b4 Bg7 b3 Qdf5 b2 Be2 Ba8 Bd1 Rb7 Qd3 Rb4 Nf8+ Qd6 Qh7 Re6 Qdg6 Qf4 d8N+ Kd5 c6 Kc5 c7 Bd5 Nd7+ Kc4 Nh3 Kb3 Rf1 h1N Nh2 Nf2 Ng1 Nh3 Rf2 Ka3 Rd2 Rc4 Kb5 Nc6 Rf2 Ne5 Rf1 Qfe4 Rf8 N5f3 Rg8 Nh4 Rh8 Ne7 c8N Qf4 Nd6 Nc8 Qf5 Rce4 Qfg6 Rb4+
8/Q1q1n3/KP1rRp2/rB1P3p/2N1Q3/pk2pQrq/N2RQ3/b2qQ3 w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 b5 h4 gxh4 a4 e4 c4 bxc4 d6 Bd7 d5 Bb5 axb5 Nd7 Nc3 Be7 Nb1 Ne5 fxe5 Bf8 Kd2 Kd7 Kc3 c5 g4 a5 b4 h5 e6+ Kc8 e7 Kb7 e8Q Kb6 d7 h3 g5 a4 g6 e3 g7 h2 Qe2 f6 Bd2 Ra7 Qe4 Rc7 Na3 Ne7 g8Q Ra7 Qgg2 Rg8 Qgf3 Qc7 d8Q Rg3 Qc8 Ra8 Qh3 Rd8 Qhh4 Rd6 Be1 Bh6 Ra2 Bf4 Rd2 Kb7 b6 Ka6 b5+ Ka5 b7 Be5+ Kc2 Kb4 b8Q Bd4 b6 c3 Kd3 c2 Nc4 c1R Qa7 a3 Nh3 Qd8 Nf2 Ba1 Nd1 Qc7 Nc3 Kb3 Na2 Rc2 Rg1 h1Q Rg2 Qh3 Rg1 Rg5 Rg4 Rb2 Rf4 Rg3 Rf5 Rb1 Re5 Rc1 Re6 Rb1 Nb2 c4+ Kd4 c3 Nc4 c2+ Kd3 Rb2 Kd4 Nc6+ Kc5 c1Q Kb5 Ne7 Ka6 Rb1 Rd1 Rb2 Ba5 Rb1 Rd2 Qd1 Qe1 Rc1 Qhg4 Rc3 Qfe2 Rd3 Qgf3 Rd4 Nb2 Rb4 Nc4 Ra4 Nb2 Nc6 Q2f2 Qh7 Bb5 Qc7 Q2e2 Ne7 Nc4 Rxa5+
k3b2n/r2Q1b2/q4nPB/1B1P1R1K/5rr1/RqBQn3/b2nN1B1/4B2n w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 h4 gxf4 a4 b5 axb5 e5 g5 Ba3 Nc3 Be7 g6 Bg5 Nd5 f3 Nf4 exf4 hxg5 Qd6 Qc2 Qf6 Qd1 Qd8 Kf2 Kd7 e4 a5 b4 c5 d4 Kc7 g7 Kb7 b6 f5 e5 h5 b5 c3 e6 a4 d5 c4 e7 a3 e8B c2 g6 c3 Qe2 a2 Ba3 c1R Bf8 h4 Qe1 c2 Qe6 h3 Be2 h2 Qd6 Be6 Nh3 Rh4 Bc4 Rg4 Qb4 Nf6 g8Q Ra7 Qh8 Ka8 Bd7 Bf7 Bc8 Nbd7 Bc5 Ne5 Bd4 Rd1 Ng1 c1N Qd2 Nb3 Ba6 Qb8 Qd3 Nd2 Qh3 Rb1 Be3 Rb4 Ne2 Qb7 Raf1 a1Q Bd4 Qb1 Bc3 Qb3 Ra1 Qc6 Ra3 Ra4 Bc8 Qb7 Qh7 Qa6 Rf1 h1N+ Ke1 Be6 Qd7 Nf7 Rf2 Nh8 Rf1 Ng3 Kf2 Bf7 b7+ Kb8 Kg1 f2+ Kg2 f3+ Kh2 f4 Kh3 Rg5 Kh4 Nh1 Qc6 Rg3 Bh3 Rb4 Bg2 Rg5 Rd1 f1N Qd7 f2 Rc1 Ne3 Rf1 Nde4 Be1 f3 Bc3 Nh7 Be1 Rg4+ Kh5 Nd2 Qe8+ Kc7 b8B+ Kb7 b6 Ka8 Bb5 Rbf4 Qd7 Nf6+ Kh6 Qb7 Be5 Qc8 Bc3 Qa6 Rg1 f1B b7+ Kb8 Nd4 Be2 Rf1 Bd1 Ne2 f2 Q3f5 Bc2 Qe4 Bb1 Qd3 Nfe4 Kh5 Ba2 Qf5 Kc7 b8B+ Kb7 Qd7+ Ka8 Rg1 f1B Bbe5 Ng5 Bg7 Nh7 Bf8 Rc7 Bh6 Ra7 Nc1 Be2 Rf1 Bd1 Ne2 Bc2 Qc4 Bf5 Qe4 Be8 Qc2 Be6 Qd3 B6f7 Rf2 Rb4 Rf6 Rbf4 Rf5 Nf6+
3q1NRq/B4rrN/1b1B1bPk/P4b2/2NN4/nq3r2/5n1K/r2Q1NQr w - - 0 1 illegal: No possible last move, all moves rejected
1BQRn3/2qQ4/Kbrn2Q1/rQ2NR2/2qQ4/1PqnPq2/2k5/q1N2q1b w - - 0 1 illegal: No possible last move, all moves rejected
1k1brb2/4br1b/1P2RR2/R5P1/qB3K1Q/R1q2bb1/B3R2n/3Q1nqN w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 Na3 gxh4 Nc4 exf4 e4 Ba3 Ne3 fxe3 Ke2 Bd6 Ke1 Bf8 Ke2 Kd7 Kf3 c5 g4 Kc7 b4 f5 d4 a5 g5 h5 e5 f4 e6 c4 e7 e2 e8R e1B Qa4 c3 Rh2 h3 Bb2 h4 Rhe2 c2 Qa3 c1B Qb3 a4 Qd1 h2 Qd3 h1B+ Rg2 h3 Re4 h2 Ne2 a3 Rb1 a2 Re6 a1B Qe4 Qd7 Ba3 Bg3 Rb3 Na6 b6+ Kb8 b7 Nf6 d6 Rh7 b5 Ng4 d5 Rf7 Bb4 Nc5 Ra3 Nb3 Qc4 Qc6 d7 Bf6 d8R Qc5 Ra5 Ba3 Rdd6 Bd8 Rda6 Qd4 d6 Qc3+ Ke4 f3 d7 f2 Rad6 Bde7 d8Q Bf6 Qd7 Bd8 Rda6 Bfe7 Qd1 Bd7 Rac6 Be8 Rf6 Nd2+ Kf5 Bd7+ Re6 Bc6 Qd4 Bf3 Qe4 Ne5 Qh4 Ng4 Nd4 Bf8 Bc4 f1Q Ba2 Qfc4 Ne2 Nf1 Rf2 Q4b3 Rg2 Qa4 Rf2 Kc7 b8R Bhg2 Rbb6 h1Q Rba6 Kb8 b6 Ngh2 Ra7 Qg1 R7a6 Bgd6 Ng3 B6c7 Nh1 Bg3 Kg6 Be4+ Kh5 Bh7 Rfe2 Bg8 Kg6 Bf3 Kf5 Qe1 Bc3 Bae7 Bb4 Qc3 Ra7 Bf2 Kf4 Bh7 Raf5 Qb5 Ra3 Qa4 Rg6 Be1 Ref6 Bf2 Ra5 Bg3+ Kf5 Bdc7 Ree5 Bh5 Re2 Kb7 Ke4 Rd8 Re6 Kb8 Rb5 Re8 Ra5 Bf6 Kf5 Bcd8 Ke4 Bf3+ Kf5 Be1 Kf4 B6e7+ Rgf6 Bg3+
rqnk1bQ1/4N1qq/p1K3RN/2nN4/2P5/2r2b2/QPb1n1N1/1BN2rR1 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Ke2 d5 Kd3 e5 h4 f3 c4 g4 g7 f2 f6 a6 h5 g3 b6 g2 h6 Bg4 h7 Nd7 b7 Ne7 g8N Qb8 f7+ Kd8 Nc3 Nc8 Nge2 g1Q Qa4 Bf3 Nc1 Qg7 Ne7 Rg8 Bh3 f1R h8N Qh7+ Bf5 Rg3 Rh6 e4+ Kd2 e3+ Kd3 e2 Qa2 e1Q Rg6 Qee5 Be4 Bh6 f8N Qeg7 Rb1 Qa7 b8Q Nc5+ Kc2 Rh3 Qg3 Qb8 Nf7+ Ke8 Qg5 d3+ Kd2 d4 Ne6 Kd7 Nf4 Ke8 Ncd5 Kd7 Nd6 Kd8 Qg2 Qe5 Ra1 Bf8 Ndf5 Qeg7 Nh6 Rg1 Rg4 Be2 Qg3 Qf7 Qa3 Nb7 Nb3 Bd1 Kc1 d2+ Kb1 d3 Ka2 Be2 Ng2 d1N Qa4 d2 Ka3 Rgh1 Kb4 Nc3 Qa2 d1B Rc1 Qf6 Bb1 Bc2 Rd1 Qg5 Nc1 Qge5 Rg8 Bh5 Qg6 Ne2 Qe6 Qeh8 Rg6 Rc3 Qg8 Q8g7 Rf1 Bf3 Re1 Na5+ Kc5 Nb3+ Kc6 Nc5 Rd1 Rf1 Re1 Rf2 Rg1 Rf1
Q1nb2R1/r2q1KpN/3r2Nq/P1P1Q3/Q3B3/qnQ3n1/1r4b1/BQbk4 w - - 0 1 legal: proof: b4 c5 g4 a5 d4 cxd4 e4 f5 exf5 h5 gxh5 axb4 a4 Rh6 Ra2 Rh8 Ra3 bxa3 Ke2 Kf7 Kf3 Kf6 Ke4 e5 Kd5 b5 c4 a2 h4 a1N f4 e4 a5 d3 c5 d2 h6 e3 h7 b4 h5 b3 h6 e2 Bh3 e1B Ne2 b2 Qa4 d1R+ Bd2 Ra7 Rh2 Nc6 Nbc3 b1Q Bg2 Bb7 Be4 Nge7+ Kd6 Rg8 h8Q Qc1 h7 Nd4 Rf2 Nab3 Nd5+ Kf7 f6 Ndf5+ Ke5 Kg6 f7 Kh5 Bc3 Kg4 Ba1 Ng3 f5 Qb6 f6 Qa3 Nef4 Bd2 Ng6 Bc1 Rf1 d6+ Ke6 Nc8 Rf3 Be7 f8Q Bc6 f7 Bd8 Qe8 Rd2 f8Q Rb2 Qf6 Bb7 Nc3 d5+ Kf7 d4 Qee5 d3 Nd5 d2 Qc3 d1Q Qfe5 Re8 Qg8 Qd3 h8Q Re6 Qhh7 Rd6 Rf6 Qc6 Re6 Qd2 Re8 Qh6 Qgh8 Qb5 Rg8 Ba8+ Nge7 Qd7 Nf6+ Kh3 Qg6 Kh2 Nh7 Kg1 Qgf5 Bb7 Qg6 Kf2 Qgf5+ Ke2 Qg6 Kd1 Qgf5 Qb5 Ng6 Qe2 Qf1+ Qe1 Qfd3+ Qed2 Qb1 Qd3 Rf8 Qb5 Rg8 Qd7+ Ne7 Qh1 Rf8 Bc7 Bf5 Bg2 Be4 Qh6 Qg8 Nb6 Rd8 Qdh3 Ng6 Qc8 Qge8 Qch3 Qec6 Nc8 Rg8 Qg4 Qa8 Bd8+ Ke8 Qd7+ Kf8 Ne7 Kf7 Nc8+
R4r1b/K1n2R2/1R1rk3/b1Rn2Pn/3nrnq1/3RB1Pb/1Q2Q1p1/1NN5 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 g3 b5 axb5 e4 Bg2 g5 f4 exf3 hxg5 fxg2 Kd2 Ke7 Kd3 h5 Kc4 a5 Kc5 d5 b4 f5 e4 h4 c4 d3 b6 a4 b5 f4 b7 d2 e5 f3 b6 d4 e6 h3 Qf1 d1R Ra3 d3 Kb5 f2 c5 d2 c6 h2 c7 Qd7+ Kc5 Nc6 b8Q Rh4 b7 Re4 Kb6 Nf6 Qb5 f1N Qb2 Nh5 Qc2 Ne3 Rb3 a3 Rb4 a2 Qc3 a1B Qc4 Bh8 Ne2 Kd6 Rf1 h1N Rf6 Nf2 Rb3 Nd3 Rf7 Ndf4 e7 Bfg7 e8R Bc3 Re5 Qf5 Rc5 Ba5+ Kb5 Qh3 Qc2 Bg4 c8R+ Ke6 Rd8 Qh4 Rd4 Bh3 Rdd7 Na7+ Ka6 Nf5 Rd4 Qg4 Rdb4 Re1 Rbb5 d1N Be3 Rh1 Nc1 Nc3 Qe2 Rd1 R5b4 Rd8 Rd4 Ncd5 Rdd3 Nd4 Rb4 Ndc6 Rbb5 Rd6 Rbb3 Bb2 Qh8 Re8 b8R Nb5 Ra8 Nbc7+ Kb7 Rf8 Rb6 Bbc3 Qd4 Ba1 Qb4 Be5 Qbb2 Nd4 Ka7 Bh8
3bR1nk/bn5N/1r2Q1r1/5b2/p3B1rq/Q2Nnn1P/KP1q1Q2/1QB1Q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nb1 g2 Ra3 Rh5 Rc3 Rh8 Rg3 fxg3 d4 a5 Kd2 c5 Kc2 g5 Kb3 f5 e4 Kf7 h3 Kg7 d6 c4+ Ka2 c3 e5 f4 d5 a4 d7 c2 e6 f3 b6 f2 d6 g4 e7 Kh7 e8Q Na6 b7 Rb8 Nc3 Qh4 d8Q Nc5 d7 Be7 Nge2 g1B Nf4 g2 Nd3 g3 Qb6 Bd8 Qbe6 Kg7 Ne4 Rh6 Nf6 Rg6 Qd2 Kh8 Nh7 Rg4 Be2 f1N Bf3 Ne3 Be4 Bf2 Q8g6 g1N Qe1 Nf3 Rh2 Bg1 Re2 g2 Qgf7 Bf2 Qf4 g1R Qh2 Ra8 b8Q Nb7 Qbd6 Ra6 Qa3 Rb6 Qf4 Rg6 Qff7 R1g4 Qf4 Bf6 d8Q Bd7 Qdc7 Bd8 Qh2 Bg1 Qhf2 Bc8 Qch2 Bd7 Qh1 Bc8 Bd2 Bd7 Qb1 c1Q Re1 Qc3 Bc1 Qd2 Re2 Bh2 Qhe1 Bb8 Qc6 Bf5 Qe6 Qd1 Rc2 Qd2 Rc8 Ba7 Rb8 Bc7 Re8 Bd8
K3r1bb/1B2qN1k/P4P1p/2n4b/3N1b2/n1RrQ1N1/1Q1nq3/NNRq4 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 f5 exf5 axb4 c4 gxh4 Ba3 bxa3 cxd5 Qd6 Bd3 Qd7 Bf1 Qd8 Ke2 Kf7 Ke3 Kg7 Ke4 c5 d4 b5 f4 e5 g4 h3 d6 a2 Kd5 e4 g5 c4 a5 e3 d7 b4 a6 e2 g6 e1Q f6+ Kh6 f5 c3 f7 h2 g7 b3 Qe2 b2 Bg2 c2 Qe3+ Qg5 d8N c1Q Ne2 Nd7 Ng3 Qe2 Nb7 Qcd1 Kc6 Bd6 f8N Nc5 d5 Bb8 d6 Be6 d7 Nf6 g8Q Nfe4 d8N Nd2 Na5 Bb3 Rg1 h1B Nfe6 Ra7 Be4 Rd7 Nd4 Bf3 Rf1 Bh5 Rf3 Bbf7 Nab3 Rd5 Qe8 Bg8 Nf7+ Kg7 Qe6 h6 Qe5+ Kh7 Kb6 Rd8 Bb7 Qe7 Qf6 Bd6 Ka7 Bb8+ Ka8 Rd5 Nc3 b1N Qfe5 Na3 Rc1 a1B Nb1 Bb2 Na1 Rd6 Nc6 Rd3 Nd4 Ne6 Qb5 Bc3 Qb2 Nc5 Ne5 Be6 Nf7 Re8 Nc6 Bf6 Nd4 Bh8 f6 Bd5 Ne5 Bg8 Nf7 Qb3 Rff1 Qd5 Rc3 Qdf3 Rfc1 Qd1 Qg5 Qfe2 Qe3 Bf4+
3n4/1b3pR1/1B2k1bn/3b3q/1q1P1q2/1r1PbQr1/NQQ2QB1/nQ3RK1 w - - 0 1 legal: proof: b4 a5 h4 g5 f4 gxh4 a4 b5 c3 d5 f5 d4 cxd4 e6 Nc3 exf5 Na2 f4 axb5 Nh6 b6 Ng8 b5 Nh6 Nb4 axb4 Ra6 Ng8 Ra7 Qd7 Ra1 Qd8 Kf2 Ke7 g4 c5 e4 h5 g5 h3 b7 h2 e5 b3 e6 f3 g6 b2 g7 b1B b6 h4 Ra3 h3 Rc3 c4 Qa4 Bg6 d3 Nh6 g8Q Nc6 b8Q Qd6 b7 Qb4 Ba3 Nd8 Rc2 c3 Ne2 Ra7 Qg7 Rg8 Bg2 Ra8 Rd1 h1B Rf1 h2 Nc1 Ra5 Qg3 Rb5 b8Q Bb7 Na2 Bd5 Rcc1 c2 Rb1 c1Q Qc2 Qf4 Rg1 Rb7 Rbf1 Rb6 Qa8 Kd6 e7 Ke6 e8Q+ Be7 Qb5 Bg5 Rc1 Rb7 Kf1 f2 Qf8 Rb8 Qfc5 Rb7 Qb2 Rb6 Qcc2 Rb8 Ke2 f1N Qf2 Nd2 Rcf1 Nb3 Qab7 Na1 Q5c6+ Qbd6 Bc5 Rg7 Qcb5 Rg8 Bb6 Qb4 Qcb1 Rg7 Qc5 Rg8 Qa8 Bb7 Qcc2 Rg7 Bc6 Bd5 Rg4 h1Q Rg3 Bc4 Bg2 Qh5+ Rg4 Bc8 Qaf3 Bb7 Qfe1 Bcd5 Kf2+ Qe5 Kg1 Be3+ Qef2 Qf4 Qa4 Ra8 Qab3 Ra3 Q3c2 Rb3 Rg3 Rg8 Rg5 Bf5 Rg7 Bfe4 Rh7 Rg3 Rg7 Bg6
2rrbr2/6B1/2b2N1R/r2rrK2/1b2QQn1/P2pQ1RQ/B1Q1q2P/4k2n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Ke4 b5 c4 e5 f4 d5+ Kd3 g5 a3 g4 c5 b3 h6 e4+ Ke2 b4 c6 g3 c7 e3 Kf3 d3 Kg4 e2 h7 e1R Ne2 d2 Bg2 d4 Be4 b2 Ra2 g2 Bf3 g1R+ Ng3 b3 Bc6 Qe7 Bd7 Bb7 c8Q Nc6 Qf3 d1R Nd2 b1B Nc4 b2 Qe4 Nb4 Ne5 Ra5 Be6 Nd3 Qc2 Rgf1 Rg1 Bc6 Bd2 Qe8 Bc3 Bb4 Ra1 Ba2 Rc1 b1R Bc4 Bb3 Qe3 Bba4 Ba2 Rd2 Rd1 Rc1 Ne4+ Kg7 f6+ Kh6 f7 Nf2+ Kf5 Kh5 f8Q Nh1 Qg7 Nf6 Qg2 Ng4 Nf6+ Kh4 Ba1 Qe7 Bc3 Rd8 Qge4 Be8 Rg3 Bac6 Bb2 Rff2 Qcb3 Rcc5 Qbc2 d3 Rb1 Rcd5 Bc3 Rdd1 Rb2 Rc1 Bd4 Bd2 Rb6 Bb4 h8Q+ Qh7+ Ke6 Qh5 f5 Rf3 Nh7 Rf4 f6 Rf5 f7 Rf3 Rg1 Kh3 f8Q Re2 Qff4 Ree1 Bb2 Re2 Rd1 Kg2 Rd2 Kf1 Nf6 Ree1 Rg2 Re2 Qhh6 Rff2 Qh3 Ke1 Rg3 Re3 Qb3 Rc3 Qc2 Ree2 Qfe3 Rf5 Qhf4 Rc4 Ng8 Rf8 Nf6 Nh6 Nh7 Bb7 Ng6 Ra4 Qee5 Qf3 Q3d4 Re4 Qde3+ Qe2 Ra6 Rcc8 Rb6 Rec4 Q5e4 Ng4 Bg7 Raa5 Rd6 R4c6 Ne5 Bf7+ Kf5 Be8+ Kg5 Ba8 Rh6 Re6 Nf6 Bac6 Kf5 Rexe5+
rqb3k1/1Q4nn/2R5/2BK1n2/PPN1Npr1/QBr2B1q/3Bq1Bn/7n w - - 0 1 legal: proof: f4 a5 g4 b5 c4 bxc4 f5 h5 gxh5 a4 f6 exf6 Nh3 f5 Ng1 f4 b4 c5 d4 c3 a3 c4 Ra2 Nf6 Rb2 Be7 Rb3 axb3 a4 Bc5 dxc5 Ng8 Kf2 Kf8 Kf3 f5 e4 g5 h4 d5 h6 b2 e5 g4+ Ke2 f3+ Ke3 f2 Kd4 c2 e6 g3 h7 f4 c6 c3 h5 g2 c7 Nf6 h6 Nh5 Be2 f1N Nh3 g1N Nf2 Nh3 Nd3 Nh2 Bf3 Rg8 h8Q Nf2 h7 Ng7 Nc5 Nd7 Qd3 Nf6 Na3 b1Q Bd2 c1R Nc4 c2 Ne4 Qb3 e7+ Kf7 Rg1 Nh1 e8B+ Kf8 Ke5 d4 Bc6 Qa3 Qb3 d3 Rg6 Qa2 Qb2 Qd7 Qa3 Qh3 Be3 d2 Bc5+ Kf7 Rh6 d1N Bg2 Be6 c8B Ne3 Bd5 Nef5 Bcb7 Qab3 Bbc6 Qbf3 Rg6 Qe2 Rh6 Rgb8 Qc8 Rg1 h8B c1Q Qd7+ Kg8 Qb7 Rc8 Bf3 Rg4 Rg6 Bf7 Be6 Nh7 Kd5 Qce1 Rf6 Qeh4 Rg6 Qe7 Rh6 Qf8 Bg2 Ne8 Bc3 Neg7 Bd2 Rc7 Rg6 Qb8 Rf6 Kh8 Be8 Bg8 Bh5 Bf7 Rg6 Be8 Bg8 Bd7 Rc6 Bc8 Bgf7 Rh4 Bhf3 Rg4 Be8 Kg8 Bh5 Qf1 Bd1 Qe2 Bc2 Rg6 Bhf3 Rg4 Bb3 Re7 Ng5 Re3 Ne4 Rc3
Nk1B4/5qRQ/nN2rq1b/3bPN1r/P4N2/p2QK2N/2q1r1Bb/1r1r4 w - - 0 1 illegal: No proof kernel
B1n5/BN4n1/1n1qPBp1/1B1R2Q1/3q1n1N/qKQ3rB/3b1Pb1/3n1bk1 w - - 0 1 legal: proof: b4 b5 g4 e5 a4 c5 axb5 a5 d4 exd4 h4 g6 h5 c4 Ra3 Ra6 Rd3 cxd3 h6 Re6 Rh4 Re7 Rh3 f5 Rh1 Rg7 hxg7 fxg4 Kd2 Kf7 e4 Kf6 c4 Ke5 b6 Kf4 c5 h5 c6 d5 b7 a4 b5 h4 c7 h3 e5 h2 e6 a3 b6 a2 Ne2+ Kf3 Qc2 a1Q Qb2 g3 Qc3 g2 Qc6 g1N Qe8 Rh3 Qd7 Rg3 Qc6 Nd7 b8B Qa3 b7 Ne7 g8B Nh3 Bf7 Bh6+ Nf4 Nb6 Ba7 Qdd6 b8Q Ba6 Be8 Nec8 Qc3 Bb5 Rg1 h1B Bb2 Bg2 Qa8 Ba6 Bb5 Bg5 Qac6 Bh6 Qa5 Bg5 Kd1 d2 Kc2 d1N Nd3 Nf4 Qcc3 Bh6 Nc5+ d3+ Kd2 d4 Nb7 Bg5 Kc1 Ne3 Nd2+ Kg4 Rh1 Nf5 Rh5 Ng7 Nf3 d2+ Kc2 d1N Nh4 Kh3 Ba1 Bh6 Rd5 Kh2 Bb2 Kg1 Ba1 Qc1+ Kb3 d3 Bb2 d2 Ba1 Ne7 c8B Bg5 Bcd7 Nec8 Bdc6 Bh6 Bfe2 Bg5 Bg4 Bh6 Bh3 Bg5 Ba4 Baf1 Bab5 Bh6 Qd3 Bg5 Bf6 Qa1 Qac3 Bh6 Qf5 Qaa3+ Kc2 Bg5 Qg4 Bh6 Qg5 Nd3 Nc5 N1b2 Qf5 Be3 Qg5 Nf4 Qb3 d1Q+ Kc3 Qh5 Ba8 Qd1 Nb7 Qd4+ Kc2 Bd2 Qc3 Qac5 Kb3 Nd1 Ba6 Qa5 Bb5 Qaa3+
1r1k1b2/NrRr1b2/7b/1Qn2PR1/1qPR3R/1RbpNBQb/K4b2/1b6 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h4 Qb6 g4 Qc7 f5 Qd6 Bf4 gxf4 g5 Qb6 h5 Qd8 Ke2 Nc6 Kd2 Ne5 Ke1 Ng6 hxg6 Bb7 Ke2 Ba6 Ke1 Bc8 Kd2 d5 Kc1 h5 b4 a5 Kb2 e5 c4 d3 g7 d4 b6 e3 b7 h4 b8Q e4 b5 e2 b6 e1B g6 e3 b7 a4 Qb3 h3 Ra3 e2 Qb6 h2 Rc3 f3 Rc1 f2 Qc5 d2 Qa3 d1B Qbg3 d3 b8R Be6 Rb6 Qb8 Nc3 Ra7 Rb3 Rb7 Ka1 Bc2 Ka2 Kd8 Nb5 Bc3 Qb4 e1B Bg2 f1B Na7 a3 Nh3 Nf6 g8R Bf2 g7 Nd7 Qb5 Bf7 Nf4 Nc5 Bf3 Bh3 Nd5 Bd2 Rcd1 Bh6 Ne3 Rh7 Rhg1 h1R Ra1 Qd6 Rh8 Qe7 Rg2 Rb1 g8R Qd6 Rg4 Qb6 Qc6 Qb4 Qb5 Rd7 Rd4 Rg7 Rc3 Rb3 Re1 Rb1 Rb3 Rb2+ Ka1 a2 Rh7 Rg8 Rh1 Rg6 Bb7 Qe1+ Nd1 Be6 Bf3 Rd6 Rc7 Bg4 Qh3 Rd7 Ra3 Bf7 Qa6 Rb8 Qb5 Qb4 Rb3 Rgb6 Ne3 R6b7 Kb2 a1B+ Ka2 Bc3 Qh2 Bh3 Rg5 Bf1 Qg3 Bg2 Rhh5 Bh3 Rhh4 Bb1+
b1N2r1b/B1bk1n2/b6R/P2bbrP1/3R4/pKRNn1Rn/6R1/5QQr w - - 0 1 illegal: No proof kernel
2qR3N/r2bK3/1q1n2n1/2q2pB1/r2BN3/nQP1qB1P/1n1B4/4BknQ w - - 0 1 legal: proof: b4 b5 f4 c5 a4 f5 axb5 h5 d4 cxd4 g4 e6 Ra3 Be7 Rg3 e5 g5 exf4 Rg4 Bf6 gxf6 hxg4 Kd2 Kf7 Kd3 Kg6 Kc4 Kg5 Kd5 Kh4 Kd6 g5 e4 a5 e5 d3 b6 d2 f7 g3 f8B g2 e6 a4 e7 a3 e8Q f3 c3 g4 h3 Kg3 b7 Kf2 b5 g3 b6 a2 Bb5 a1N Bc6 Rh7 Qc2 Kf1 Qe7 d1Q+ Qd2 f2 Qg5 Qe1 Qb2 Nf6 Bf4 Nc2 Qa2 Ra4 Bh6 Qe3 Nf3+ g1Q Nh4 g2 Qb3 Na3 Bf3 Nc6 b8B Ne7 b7 Ng6 Ba7 Qh8 b8B Ne4+ Kc7 Qe5+ Kd8 d5 Bd4 Nd6 Bg3 Rha7 Nd2+ Ke1 Qf4 Bd7 Ne4 Kf1 Qg4 Qe6 Bgf4 Qe5 Bfg5 Qe6 Qf4 Qe5 Qh2 Qe6 Bc5 d4 Bb6 d3 Bd4 d2 Bc7 Ne5 Ng6 d1N Nh8 Nb2 Bcb6 Qc4 Ke7 Qc5 Bc7 Ke1 Bb6 f1Q Bd8 Qfd3 Bh4+ Kf1 Be1 Qdc4 Bg5 Qg8 Bb6 Qf4 Be3 Qgc8 B3d2 Qb4 Bd4 Qe3 Qf4 Qbc5 Rh2 Ned3 Qe5 Qgf2 Qed5 g1N Rg2 Nf4 Rg4 Ne6 Rh4 Nf8 Rh6 Ndb5+ Rd6 Ng6+ Kf7 Q8c6 Be5 Qc4 Bd1 Qeg3 Nf6 Qfb6 Bd4 Q4c5 Qh1 Qe3 Bf3 Qc8 Ne4 Be8+ Kf6 Bc6 Rd8 Bd7+ Kf7 Nd6+ Kf6 Nh4 Ke7 Ng6+
3Nk3/2n3n1/8/pbqP1QqN/r1B2B2/P1rNrr2/2RK1q1N/1r1QqN2 w - - 0 1 legal: proof: c4 c5 e4 f5 f4 fxe4 g3 Nf6 f5 Ng8 b4 d5 bxc5 dxc4 a3 e6 Qf3 Bd6 Qd1 Bf4 gxf4 h5 Nf3 Nd7 Rg1 Nh6 Rg4 hxg4 Ng1 Ng8 Kf2 Qg5 Qf3 Rh5 Be2 Ngf6 Bb2 Rh7 Nh3 Nh5 Nc3 Qg6 Rh1 Rh6 Bc1 Nhf6 Ke1 Rh8 Bf1 Ng8 Qd1 Qg5 Nb1 Nb8 Ng1 Qd8 d4 g5 h4 b5 f6 c3 f5 e5 c6 e3 c7 e4 d5 c2 h5 g3 h6 g2 h7 b4 Bb2 c1R Bb5+ Bd7 c8N g4 Nd2 e2 Bc3 b3 Rh2 g3 Nb6 b2 Ngf3 g1Q+ Nf1 b1R Bd2 g2 Bf4 Nh6 Bc4 Qc5 Kd2 g1Q Na4 e1R Nb2 Rf8 h8N Re3 Nf7 Rcc3 Nd3 Bb5 Re2 Qf2 N3h2 Qde7 Nd8 Na6 f7+ Kd7 f6 Nc7 Ne6 Nf5 Ng7 a6 Nh5 Ng7 Qc2 Qe5 Qb3 Qg5 Qd1 Rfc8 f8N+ Ke8 Ne6 a5 Qc1 Rf3 Nd8 e3+ Kd1 Rab8 Rc2 e2+ Kd2 Rb4 Qb1 Ra4 Qd1 Rb6 Nf7 Re6 Nd8 Ree3 f7+ Kd7 f8Q Rb8 Qf6 Ke8 Ba2 Ba6 Qf5 Rb1 Bb3 Bb5 Bc4 e1Q#
Bq1B4/nBr1Qq2/b2rr3/qn1B4/Br1N2p1/k1P5/P7/QR1q1RnK w - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 e4 h5 g4 hxg4 f4 e6 e5 Qc7 Nc3 Bd6 Nd5 exd5 e6 Be5 fxe5 d4 Be2 Qa5 Bf1 Qd8 Kf2 Ke7 Kg2 f5 h4 g5 c6 d5 h5 b5 h6 d3 c7 f4 h7 d4 Rh6 g3 Ne2 d2 Nc3 f3+ Kg1 d3 Bg2 f2+ Kh1 b3 Nb1 g4 Na3 b2 Qf3 b1Q Nc4 d1R+ Bf1 g2+ Kh2 g1N Be3 b4 Qe4 d2 Bb6 b3 Kh1 b2 Bg2 f1Q Nd6 Ra6 Rf6 Nh6 Nb5 Nf7 Nd4 Nd6 Rf4 Qc4 Rf1 Nb5 Qb7 Qb3 Bd5 Nc6 Ba5 Rg8 h8Q Rg7 Qa7 Bb7 c8B Re1 Bb6 d1Q Bc7 Rb6 c3 Ba6 Bb7 Qf5 Qh6 b1R Qc1 Qb8 Bd8+ Ke8 e7 Kd7 e6+ Kd6 e8B Kc5 e7 Re6 Qa8 Nca7 Bec6 Qfe5 e8B Rc7 Qg5 Qc4 Qh4 Rb4 Rb1 Qcb3 Qe7+ Rd6 Be4 Qf7 Bcd5 Rbc6 Bg2 Kb6 Bd7 Ka5 Bge4 Rb6 Bd7c6 Ka4 Bc2+ Ka3 Ba4 Nc8 Qa7 Qg5 Ba8 Qgf5 Bcb7 Rbc6 Qc5 Nca7 Qe1 Re6 Qe7 Rcd6 Rb2 Qe2 Qa1 Qd1 Rb1 Qg5 Bg2 Qc5 Bgc6 Qb6 Bd5 Qa5
Q3B1r1/rq3r2/2Q2P2/KB1B1Bqb/n1p2N2/2R1p1k1/bBb1P2n/4N1q1 w - - 0 1 illegal: No possible last move
1b5N/bP4bN/r3B3/p1pn1Q1P/4r1N1/kNr1QN1b/2nq1Kn1/1B2R3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 g4 h6 b4 Nf6 Ra3 Bd7 Rf3 Bc8 Rf4 Ng8 Bb2 Bg7 Bf6 gxf4 g5 Bf8 g6 Be6 Bh4 Bc8 Bg5 hxg5 d4 Kd7 h4 Kd6 b6 a5 g7 e5 b7 g4 f6 f3 b5 e3 f7 e4 b6 g3 h5 e2 Qc1 g2 Nd2 Nf6 g8B Nc6 b8Q Bg7 f8N Bh3 b7 Nb4 Kf2 e1R Nh7 Ra6 Be6 Nc2 Qc8 c6 Nb3 e3+ Kg3 e2 Qe3 f2 Nf3 Rc1 Rg1 e1B Bd3 Bd2 Re1 f1N+ Kf2 Re8 Be4 Na3 Bb1 Rc3 Bef5 Re4 Be6 Qe7 Qf8 Nc2 Qf7 Qd8 Qg6 Kc7 d6+ Kb6 d7 Kb5 d5 Ka4 d6 Nd5 Qf5 Qg5 d8N Ka3 d7 g1B+ Ke2 Bh2 Kf2 Bb8 Nf7 c5 d8N Ba7 Nh6 Qf4 Qe2 Nfe3 Ndf7 Ng2 Ng4 Qh2 Nh8 Bf4 Qd2 Bfb8 Qe3 Qf4 Qd4 Qc1 Qe3 Qd2+
1Q2N3/1KRp1Q2/3qRqnn/R4q2/2R2BR1/Pq2bpnb/1kP3Nr/4r3 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 a5 e3 a4 a3 e5 d4 cxd4 Bc4 Be7 Ba2 Bf8 b3 axb3 fxe5 bxa2 Ke2 Ke7 Kd3 Ke6 Kc4 f5 Kb5 Kd5 h4 g5 h6 g4 h7 f4 h5 d3 h6 d2 e6 g3 e7 f3 e8R g2 e4+ Kd4 e5 Qf6 e6 Qf5+ Kb6 Nc6 e7 Ne5 Nc3 Ng6 Nh3 g1N Ne4 Ne2 Nd6 Kc3 Nf4 Ng3 Rh5 Ra4 Qe1 Re4 Ng2 Bg7 Rb1 a1Q Rb4 Bd4+ Kc7 Re6 Qe5 d1Q Bf4 b5 Rc4+ Kb2 Qd5 Re3 Qf7 Ba6 Rc8 b4 e8R b3 Re6 Re1 Ne8 Be3 Kb8 Bb5 Kb7 Qd6 R4c7 Bd3 Rh4 Bf1 Rg4 Ka2 Ra8 Qaf6 Ra5 b2 Rc4 Bb6 Rc7 b1Q Rc4 Qb3 Rc7 Kb2 Rc4 N8e7 Rc7 Rf8 h8R Ng8 h7 Nh6 Rg8 Re5 h8Q Re1 Ng7 Ra8 Rgc8 Ra6 Ne8 Be3+ Rb5 Ra4 Qhf8 Rd4 Rc4 Rd2 R8c7 Qde5 Qb4 Qd6 Ra5 Rf2 Nh4 Bh3 Qb5 Rh2 Ng2 Kc1 Qb6 Qa4 Qa7 Kb2 Qb8 Qb3+
B3r2n/1PpPq1N1/1p1r2k1/1K1b4/1B4N1/b1q1n1NN/Q7/1NRnqQn1 w - - 0 1 legal: proof: c4 b5 cxb5 e6 f4 Qg5 e4 Qf6 b6 Qd8 f5 exf5 e5 d6 Bd3 d5 Be4 dxe4 h4 g5 hxg5 Bg7 a4 Bd7 b4 Qe7 b5 Nh6 b7 Na6 b8N Bf8 b6 Ng8 b7 Qd8 Ra3 Be6 Rb3 Bc8 Rb6 axb6 Ke2 h5 d4 f4 g4 f5 a5 Kf7 e6+ Kg6 e7 f3+ Kd2 e3+ Kc3 f4 Kc4 e2 e8N e1Q d5 h4 d6 h3 Ba3 f2 Qd5 f1N Bb4 h2 Qd1 f3 Ng7 f2 Nh3 Be6+ Kb5 Rh6 d7 Qc3 Nc6 Ng3 Qf1 Nc5 a6 Ne7 a7 Na4 Nd4 Bd5 Ndf5 Ne2 Ng3 Nb2 Rg1 Rc8 a8B Nd1 Rh1 Kf7 Rg1 Ng6 Rh1 Nh8 g6+ Kf6 Rg1 h1Q g5+ Ke5 Ne6 Bd6 g7 Qe7 g8N Re8 g6 Qe4 Rh1 Ng1 g7 Qee1 Nf6 Rg6 g8Q Bc5 Ba5 Ba3 Bb4 Rh6 Ng7 Rg6 Qd3 f1N Qe2+ Nfe3 Qf1 Bg2 Qa2 Bd5 N7f5 Ke6 Ng7+ Kf7 Ng4+ Rf6 Rh2 Kg6 Rc2 Re6 Rc1 Rd6
Bn1nBRQ1/n2r2P1/4P2k/1bp2B2/KR3q2/1p4Bn/Q1rBq3/n4qN1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 Bc5 g5 Bd4 Nc3 Be3 Ne4 f3 Nf6+ gxf6 g6 Bg5 hxg5 f5 Qc2 f4 Qa4+ Bd7 Qd1 Bc8 d4 Kf8 Kd2 Kg7 Kc2 c5 Kb3 b5 a4 f5 e4 h5 a5 f2 d6 h4 a6 h3 d5 f3 a7 h2 d7 f4 d6 Qc7 d8B Bd7 e5 Ne7 e6 Nec6 Bg2 f1Q Bd2 f2 Be1 f3 Rb1 Qe2 Bf1 Rh7 Bh3 f1Q Ra1 f2 Be7 Nd8 Bd2 Be8 d7 Qf4 Kb2 b3 Ka3 b4+ Ka4 b2 Bd6 b1N Qb3 Na3 Rb1 Nb5 Qa2 Qc1 Bc7 f1N Bf5 Ne3 Rb3 Qff1 Bg3 Nc2 Rf3 b3 Rf2 Nb7 d8Q Na1 Rf4 Bc6 Qc8 Nd8 Rb4 Kg8 g7 Qf4 Nh3 Qcf1 Rg1 h1N Rg2 Qg1 Rf2 Qgf1 Rf3 Nf2 Ng1 Nh3 Rf2 Rh6 Rf3 Rg6 Rf2 Kh7 g8B+ Kg7 Bf7 Rh6 g6 Rh7 Be8 Kh6 Qc7 Rd7 g7 Rd6 Qf7 Rd7 Qg8 Nd6+ Ka3 Bb5 Be4 Nc8 Bd3 Qfe3 Rf8 Qef4 Bf5 Rd3 Qb2 Rc3 Qb1 Rc2 Qa2 Nbc6 Nf3 Rb8 a8B Rb7 Ng1 N8a7 Bg4 Nb8 Bf5 Bc4 Ka4 Rd7 Be3 Ba6 Bd2 Bb5+
3B3b/Q1p2Nn1/Bn1KBn1R/1r3qnP/q1R4B/3pP3/2nQ4/1k1Bqb2 w - - 0 1 illegal: Other
qQ1Q3Q/pnN4n/qPqn2K1/2Q2r2/2RqPQp1/Rb3q2/6B1/3kB1r1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra5 h5 Nd5 f4 Ra1 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 Kd3 Kf7 Ke4 Ke6 h4 g5 c4 d5+ Kd3 Kf5 b4 g3 e4+ Kg4 b6 g2 h5 Nc6 h6 Nf6 h7 Rf8 h8Q Na5 c5 Nh7 b7 Be6 b8Q Nb7 b5 Rf5 Be2 f1Q Nh3 g1Q c6 Qc8 Kd2 d3 b6 d4 c7 Bb3 Ra3 Kg3 Bb2 f2 Bc3 Qd7 c8Q Qc6 Bf3 g4 Kc1 d2+ Kb2 d3 Ng5 Qfg2 Ne6 f1Q Nc7 Kf2 Qc1 d1Q Qcd8 Q2h2 Bg2 Ke2 Be1 d2 Qc5 Qhh6 Kc3 Qf8 Rh6 Qgf2 Rh3 Qf3+ Kd4 Qg8 Ra4 Qf8 Rc4 Qa1+ Rc3 d1N Rg3 Qaa4+ Rc4 Nc3 Rh3 Kd1 Rg3 Rh5 f5 Rh1 f6 Rg1 f7 Nb5+ Ke5+ N5d6 Rh3 Qg8 f8Q Q1d3 Qf4 Qa6 Rg3 Qf8 Ke6 Qd4 Rh3 Nf7+ Kf5 Nfd6+ Kg6 Qa2 Ne6 Qa6 Qbc7 Rc8 Qb8 Rc7 Rg3 Rf7 Nc7 Rf5 Rh3 Qf1 Rhc3 Qf3 Re3 Ba2 Ra3 Bb3 Qh4 Qc8 Q4d8 Na5 Qb7 Qa8 Qbb8 Nab7
r3N1bN/b3Qb1K/3rq1N1/4n1Pb/N1Q4R/1PqB1p2/r5Np/1R1q3k w - - 0 1 illegal: No possible last move
1b2B3/2bqp3/3nP1RN/Q1q2RPB/Qn2B3/1bk1n3/q1pr3B/2K3Bn w - - 0 1 legal: proof: g4 a5 a4 b5 c4 d5 h4 c5 f4 g5 h5 gxf4 g5 Ra6 b4 Rg6 hxg6 Ba6 Na3 Bc8 axb5 cxb4 c5 Bb7 Nc4 dxc4 Rh5 Ba6 Rh1 Bc8 e4 Kd7 d4 Ke6 Kd2 h5 c6 f5 c7 h4 b6 h3 g7 c3+ Kc2 a4 d5+ Ke5 b7 f3 d6 b3+ Kb1 a3 d7 f2 Qh5 Kd4 e5 b2 Kc2 b1Q+ Kd1 h2 Qh7 a2 Qh4+ f4 Qh3 f3 Bd3 f1N Be4 f2 Qh4 Nc6 b8B Nf6 g8B Nb4 Bf7 Ne8 Bh5 Nd6 Nh3 Bg7 e6 Be5 Qg4 Bb7 c8B Bd5 Bb7 Qb6 d8Q Qc5 Qa5 Rd8 Bc6 Qb2 Rb1 a1B Bce8 Qa2 Be3+ Kc4 Rb3 c2+ Kc1 Bac3 Bd4 Ne3 Ra3 Be1 Rd3 f1Q Nf2 Qg1 Rd1 Bc3 Rf1 Qc7 Qh4 Qd7 Ng4 Ba1 Bb6 Kc3 Nh6 Bb3 Bc5 Qf2 Bca7 Qf5 Rf2 Bg3 Rhf1 Qe5 Rf6 h1N Rg6 Qc5 Qg4 Nb7 Rf5 Bc7 Qe2 Nd6 Qea6 Kd4 Qc6 Kc4 Qca4 Be5 Bb6 Kc3 Be2 Nc8 B4f3 Bcd6 B6c7 Qdc6 Be4 Bh2 Bh5 Bde5 Rg7 Rd2 Rg6 Qd7 Bd6 Bh8 Bg3 Be5 Bf2 Bd6 Bg1 Bdg3 Bc7 Bf4 Bb6 Bb8 Bc7 Qdd4 Bg3 Qd7 Bh4 Bhd6 Bg3 Bdc7 B3h2 Nd6
R2B2B1/7p/rnk2P1n/6PN/nQ1BnbbB/2p3rn/K1Q3Bn/b2N4 w - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 g5 axb5 d5 f5 dxc4 g4 Nd7 b4 Bb7 h4 Ba6 h5 Nb8 Ra3 Bc8 Rf3 Qd7 Rf4 gxf4 g5 Qc6 Be2 Nh6 Bf1 Qg6 hxg6 Ng8 d4 Kd7 Kd2 c5 Kc2 e5 Kb2 a5 f6 c3+ Ka3 c4 g7 a4 d5 f3 d6 e3 b6 c2 b7 f2 b5 e2 b6 e1N Rh2 e4 Rh4 c3 Be3 c1N Qf3 Ncd3 Rh1 Ra6 Be2 f1N Rh4 Nc5 Qf2 Ned3 Bd4 e3 Nh3 Nd2 Bf3 e2 Ka2 e1N Bg2 a3 Nf4 Nef3 Nh5 Nh6 g8B Kc6 d7 Bd6 d8B Nde4 Qc2 Nf4 Nd2 Nbd7 b8B Na4 b7 Ndb6 Nf1 Nh3 Ne3 Bg4 Nd1 Nh2 Ba7 Bf4 b8Q Nc4 Qb4 Ncb6 Bf7 Re8 Bg8 Re7 Bb8 Rd7 Bbe5 Rd5 Bf2 Rd3 Bed4 Bc8 Rg4 Rf3 Bh4 Rg3 Kb3 a2 Ka3 a1B Ka2 Bd6 Rf4 Bg4 Rf5 Bf4 Ra5 Ra7 Ra6 Rf7 Ra8 Ra7 Bf1 Ra5 Bg2 Ra6
3K3B/1b3qQ1/1b1Pk3/R5P1/1bpqNR1n/RQNq1pR1/1r2n3/1q2b2R w - - 0 1 legal: proof: c4 a5 g4 g5 f4 gxf4 h4 d5 a4 dxc4 g5 b5 axb5 e5 Bg2 Ra6 h5 e4 Bf3 Rg6 hxg6 exf3 Kf2 Ke7 e4 f5 d4 h5 b4 c5 b6 c3 b7 c2 e5 h4 d5 c4 e6 a4 g7 a3 b5 a2 b6 h3 Rh2 Nc6 b8R Nh6 g8Q Bb7 Ra8 Nd4 Ra5 Ne2 Bb2 c1B Qb3 Bd2 Rh1 h2 Nh3 Kd6 e7 Be1+ Kf1 f2 Kg2 Kd7 Kf3 f1Q+ Nf2 Rh7 e8R Bfb4 Re3 Rg7 Rg1 h1Q+ Rg2 Qf6 Nc3 Qd4 Qf8 Re7 Qg7 Qhg1 Rd1 a1B Rg3 Qh3 Nfe4 Rf7 d6 Ke6 Na2 Rf8 Nc3 Rb8 Rb1 Qh5+ Rg4 Qf7 Rg3 Qd3 Rc1 Qb1 Rd3 Qd4 Rcd1 Bf2 Rh1 Be1 Re3 Ba6 b7 Qbd3 Kg2 f3+ Kh3 f4 Kh4 Nf5+ Kg4 f2 Ref3 Rc8 b8R f1Q Ra8 Nh4 Ra3 Bb7 R8a5 Qf5+ Kh5 Qf7+ Kh6 Rc6 Kh7 Rb6 Kh8 Qh5+ Kg8 Rb5 Kf8 Qb1 Rd3 f3 Rd2 Qh7 Ke8 Qg6+ Kd8 Qf7 Rd3 Rb6 Bc1 Bb2 Bf4 Bc1 Be5 Be3 Bf6 Nf4 Rd2 Qfd3 Rdg2 Bg1 Rg4 Rb5 R2g3 Ne2 Rf4 Bc5 Qa4 Rb2 Qb3 Be3 Qg8 Bb4 Bh8 Qe5 Qf8 Bec5 Qg8 Qed4 Qg7 Bb6#
qQ6/2bP1rqq/1B2kn2/1n2NR1p/2nPQpN1/1r2BB2/K6B/1n3Bq1 w - - 0 1 legal: proof: h4 b5 f4 d5 d4 g5 a4 gxh4 axb5 e5 Ra4 exf4 Rc4 Bf5 b4 Bd3 cxd3 dxc4 Kd2 Kd7 Kc2 c5 Kb2 f5 g4 a5 e4 f3 d5 a4 e5 h3 g5 f2 g6 c3+ Ka1 c4 b6 h2 b5 a3 d6 a2 b7 c2 b6 c3 g7 Na6 b8B Nf6 g8B Ra7 b7 Nc7 Nf3 Nb5 Bc7 Qa8 Be3 c1Q b8B c2 Bcb6 h5 Bh7 Ke6 d7 Bd6 Qe2 Bc7 Qe1 Qd2 Nc3 c1N Nd1 Qc2 Rg1 h1Q Rg5 Rb7 d4 Rf8 Qe2 Qg2 Qd3 Rf7 Qe4 Ne2 Bg8 Ke7 e6 Nec3 Ne5 Nb1 Bh7 Kd6 e7 Ke6 Bg6 Qd3 Kb2 a1N Bh7 Nb3 e8Q+ Re7 Qh8 Na5 Ka2 Rf7 Qc8 Bd8 Bd6 Bc7 Qb8 Qg1 Bh3 f1Q Nf2 Qc1 Nfg4 Qce1 Bf1 Qeg3 Bb4 Nc4+ B4a5 Na7 Be1 f4 Rf5 Qh4 Bg8 Qg5 Bg3 Qg7 Bh2 Kd6 Ba5 Rb3 Bb6 Nb5+ Ba5 Rf8 Bd5 Rf7 Bb7 Ke6 Bc6 Qb7 Bb6 Qc8 Qg2 Qch8 Bf3 Qe4 Qc2 Qhh7 Qd3 Qc6 Qe4 Qa8+
2R3q1/pQ1b4/q1NP1n2/B4q1k/R3R1pr/4nnK1/P2Qq3/R1RB2nq w - - 0 1 legal: proof: e4 d5 f4 dxe4 c4 b5 Nh3 bxc4 Nc3 e5 Kf2 e3+ Ke2 e4 Nb1 Na6 Ke1 Rb8 Ng1 Rb5 Nc3 Ra5 Nb1 Re5 g3 h5 Nc3 f6 Nd5 f5 Nf6+ Ke7 Ng4 hxg4 Bh3 Ke8 Bg2 Be7 Bf1 Bg5 fxe5 f4 Qe2 f3 Qd1 Bf4 gxf4 Qe7 Be2 Qd6 Bf1 Qd8 h4 Kf7 b4 Kg6 d4 c5 e6 c3 b5 g3 b6 c2 e7 g2 e8R c4 d5 c3 f5+ Kh5 d6 g5 f6 e2 Kf2 e1N f7 e3+ Kg3 e2 f8R g4 b7 f2 b8Q Nc7 Bd2 c1Q Rf4 c2 Ra4 Qb1 Nf3 g1N Ree4 c1Q Qb7 Nf6 Ba5 Qg8 Ne5 Nef3 Qd2 e1Q Be2 Ncd5 Bd1 Qe2 Nc6 f1Q Rh3 Qcc2 Rh1 Qb6 Rc1 Ne3 Ra1 Kh6 h5 Bd7 Rc1 Kg5 h6 Qba6 h7 Qcd3 Rh5+ Kg6 Rb5 Qdd5 Rbb1 Kh5 Ra1 Qh3+ Kf4 Qh1 Kg3 Qf5 Qb6 Qg7 Qb7 Rc8 h8R+ Qgh7 Rd8 Qg8 Rf8 Qgg5 Rf4 Kh6 Re8 Ra8 Re6 Rh8 Rfe4 Qg8 Re8 Kg5 Rf8 Rh4 Rc8 Kh5
3K4/2qnQ1r1/B1Q2b1B/kqprN3/Nn3n1P/B2pB1P1/R6p/2r3bB w - - 0 1 illegal: No proof kernel
3n2B1/1R2Q1pq/3QrPBr/3pn3/p1n1b3/R1b4R/3k2PK/1R2bRbN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 h6 axb5 c6 Bg5 hxg5 f4 c5 Nc3 Rh3 dxc5 fxe4 f5 Rh6 Nce2 Rh8 Nf4 gxf4 Kf2 Kf7 h4 Kf6 c4 Ke5 b4 a5 c6 d6 f6 f3 Kg3 f2 c5 a4 h5 e6 h6 e3 b6 Ke4 b5 e5 h7 e2 c7 Ke3 b7 e1B b6 e4 c6 Qe8 Ne2 Bf5 c8B Qh5 c7 Bc3 Ra3 Ra6 Be6 Nc6 c8Q Nge7 b8R Ne5 b7 N7c6 Qd7 Nd8 Bg8 d5 Qe1 Re6 Qd6 Qg6+ Kh2 Kd3 Rg1 e3 Ng3+ e2 Nh1 Ke3 Rc8 Bb1 b8R Be4 Rb1 Be7 Rc7 Qf5 Qb6+ Bc5 Qd6 Bb6 Rb7 Bd4 Qd1 e1B Bd3 Qg6 Qb3 Kd2 Qbb4 Ba7 Qe7 Bb6 Qbd6 f1N+ Kh3 Ne3 Rf1 N3c4 Kh2 Ba7 Bf7 Rf8 h8R Bc5 Rh3 Rh8 Bc2 Rh6 Bg8 Qh7 Bd3 Bf3 Bf5 Be4 Bg6 Bg1+
1R4Q1/1Nk1P1P1/3Nrr1p/1nK1Q2p/1rr5/p2QbR2/n1b2q1n/B3Q2Q w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Bh6 Qa4 Bg7 Qd1 Bf8 b4 c6 b6 Bg7 e3 Qd6 h5 gxh5 b7 Qc7 b5 Qd8 b6 Bf8 Bb5 cxb5 Ke2 Kd7 Kd3 a5 Kd4 f5 g4 h6 e4 b4 d6 b3 g5 b2 g6 f3 e5 f4 e6+ Kc6 e7 f2 d7 f1N Nh3 f3 Nf4 f2 Nc3 b1R Ra3 a4 Nb5 Na6 b8Q Nb4 b7 Ra5 Bb2 Qe8 d8Q Nf6 Qa8 Qf7 Nd3 Nfd5 Nc5 Nc3 Ba1 Nh2 b8Q+ Bb7 Rb3 a3 Qe1 Nba2 Rf1 Ra6 Qd5+ Kb6 Qh1 Qf3 Kc4 Bg7 d4 Rd8 d5 Bd4 d6 Be3 d7 Qg2 Qe5 Be4 g7 Bc2 Qad5 Qg3 Qd3 Rb2 Rg1 f1R Rb4 Rf7 Rf1 Rf6 Rf3 Qf2 Rb3 Rg8 d8Q+ Kc6 Q8d4 Rd8 Qdd5+ Kb6 Qg8 Rd5 Nd6+ Kc7 Rb8 Nb5 Ncb7 Rd4+ Kc5 Rbb4 Nf7+ Rad6 Qef5 Rde6 Nfd6 Qg3 Qfe4 Qf2 Qe5 Rdc4+
5Q2/1Q1KQ1qr/B5kr/1p2P1B1/b1Qqn1R1/6bP/q1Np2p1/1b1r1QR1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 fxe5 c5 Qd2 cxd4 Qd3 Ne7 Qd1 Ng8 Na3 h5 Nc4 f4 Ne3 Nc6 Ba3 Nce7 Bc1 Nf5 gxf5 Rh6 Ng4 hxg4 Bb2 Rh5 Bc1 Rh8 Kf2 Kf7 c4 d5 e4 g5 a4 b3 c5 f3 Kg3 d3 c6 d4 f6 b2 e6+ Kg6 h3 b1Q e7 d2 a5 d3 a6 f2 a7 Bd7 f7 Rh7 e8Q Qa2 c7 Nf6 c8Q Ba4 Qe7 Qd4 Nf3 b6 Be2 f1B Qc4 Re8 Qe1 d1R a8Q Rh6 Be3 d2 Rg1 Bg7 Qaa6 Reh8 f8Q R8h7 Qab7 Bg2 Qf1 b5 Ne1 Bf3 Nc2 Bh1 Bf3 Bg2 Kf2 g3+ Ke2 g4 e5 Ne4 Bg5 Bf6 Rc1 Bh1 Rb1 g2 Rb4 g3 Bg4 Ra1 Kf3 Re1 Bc8 Rd1 Be3 Bg5 Kg4 Bh4 Bg5 Nd6+ Bf4 Qd5 Qb8 Qg8 Qce2 Qh8 Na3 Qg7 Ba6 Qaf7 Qff2 Qa2 Re1 g1Q Bg5 Qag8 Qbb7 Bd5 Nc2 g2 Rf1 Qh2 Rg1 Ba2 Qff1 Bb1 Re4 Qa2 Qc4 Nf5 Rd4 Ng3 Kf4 Ne2+ Ke4 Qf4+ Kd5 Bg3 Kd6 Nc3 Kd7 Qe3 Rf4 Ne4 Rg4 Qd4+
2Q3N1/bRQ1BPpQ/P2pqn2/1K2kqp1/8/bn1B1q2/2rQ2R1/1b3Q1n w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 b6 e4 c6 f4 h6 f6 c5 b4 axb4 e5 cxd4 f5 b5 Nd2 Ra6 Ne4 Ra5 Ng5 hxg5 Qd3 Qb6 Qd1 Kd8 Rb1 Kc7 Ra1 Ra6 f7 Kc6 Bd3 Qd8 Bf1 Rb6 Ne2 Kb7 Ng1 Rf6 exf6 Kc6 Ke2 Kd6 Kd3 e5 c4 b3 a4 b4 h4 b2 a5 b1N h5 b3 c5+ Kd5 a6 b2 h6 Qb6 h7 Nh6 c6 Bd6 f8Q Ba3 f7 Nd2 f6 Nf5 c7 Nb3 Rb1 Ng3 Ne2 Qe6 Rh2 Nh1 Qe7 d6 f8Q Bb7 c8Q Nd7 Ng3 Rg8 h8Q e4+ Kc2 e3 Kd3 e2 Qd2 e1B Nh5 Ba8 Qh7 Ke5 Rg2 Bf2 Qed8 Bc6 Qdc7 Ba4 f7 Be3 Qfe8 Nf6 Qec6 Rd8 Qf3 Rd7 Be2 Bc6 Qf1 Bf3 Qc6 Rc7 Q6b7 Rc2 Qbc7 Ng4 Nf6 Ba8 Ng8 Nf6 Ra1 b1Q Bb2 Bb7 Qg1 Qf1 Rb1 Qf3 Bc3 Qef5+ Kc4 Be4 Kb5 Bf2 Ba5 d3 Qf1 Ba7 Qde1 d2 Bd3 d1Q Qd2 Qe6 Bb6 Qff5 Bd4+ Kd5 Ba1 Qdf3 Bb2 Nh5 Bf6 Nd4+ Ka4 Rc6 Rb7 Nb3 Be7 Nf6 Kb5 Ke5 Bc4 Bb1 Bd3 Rc2
1N2Q3/Pr4rK/N3n2b/1p3QrN/1p6/N1BrPqnN/Rr5p/4Rn1k w - - 0 1 illegal: No possible last move, all moves rejected
3bk1KN/2Q1n2Q/4r1pb/1R1bRPRb/5p1r/1pq2BqN/R2Pr3/3R4 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Nh3 f5 Ba3 h6 Bb2 f4 Ng1 Nc6 Bf6 Nce7 Bg5 Nf5 gxf5 hxg5 Kf2 b5 e4 c5 a4 g6 h4 c4 d6 b3 h5 c3 h6 b2 e5 c2 h7 c1Q a5 b4 d7+ Ke7 e6 g4 a6 b3 a7 Nf6 Ra2 Ba6 Na3 b1B Nb5 Qa3 Nh3 Bc2 Nd6 Qda5 Be2 Bh6 Nf7 Rae8 a8R Nd5 Rb8 Bc4 Rb5 Qd6 d8Q+ Kf8 Qb1 Qc3 Qc7 Ne7 Rd1 Qdd3 Qa1 Bd5 Qb2 Rg8 Nh8 Rg7 Qa3 Rg8 Qaa7 g3+ Kg1 g2 Kh2 f2 Bf3 g1B+ Kg2 f1R Qab7 Nc6 e7+ Kg7 Qa7 Re1 Qab7 Re6 Qa7 Rc8 e8R+ Kf6 Re7 Rce8 Qab7 Bf2 Kh2 Re2 Re5 Re6 Bh1 Rg7 Qcb6 Qdc4 Rg1 Bh4+ Nf2 Re4 Nf7 Q4d3 h8R B6g5 Rh5 Na7 Nh8 Nc8 Bg2 Bg3+ Kh3 Rh7 Kg4 B3h4 Nh3 Rh6 Qh7 Qe3 Nf7 Ke7 Qc7+ Ke8 Nh8 Bd8 Rc1 Bhg5 Rb1 Bd3 Rd1 Ne7 Bh1 Bf6 Bg2 Bg7 Kg5 Be2 Bh1 Bg4 Bg2 Qg3 Bf3 Ra6 Qb6 Bf8 Kf6 Re2 Rg5 Rh4 Qd6 Bh5 Qb6 Bh6 Qd6 Be4 Qb6 Kd7 Kf7 Ba8 Qa5 Re6 Qb6 Bd5 Qa5 Nc8 Kg8+ Ke8 Qac7 Ne7+
qr2B2B/b2p3B/3PQ2b/np1r1qR1/NQP5/2p1B3/K1kq4/Bb2b1N1 w - - 0 1 legal: proof: f4 e5 a4 exf4 b3 c5 Bb2 b5 Ba3 b4 Nh3 c4 Ng1 c3 Bb2 Ba6 Ra3 Bc4 bxc4 b3 g4 h5 Ba1 b2 Rb3 hxg4 Rb6 Nc6 Rb5 Na5 Rb6 Nb3 cxb3 Bc5 b4 Bf8 b5 Qc8 Rd6 Qd8 b6 a6 Rd5 Be7 Ra5 Bf8 Rb5 axb5 h4 Ke7 e4 Ke6 d4 f5 h5 g5 e5 g3 a5 f3 a6 g2 b7 f4 b8B Kf5 e6 Ke4 a7 g4 d5 g3 e7 Bh6 e8B Ne7 d6 Nc6 Qb3 f2+ Kd1 f3 Kc2 Na5 Qb4 Rh7 Bc7 Rb8 a8Q+ Ke3 Be2 f1Q Nd2 f2 Qd5 Qe1 Ne4 f1Q Qe6 Qf5 Bd3 Qd2+ Kb1 Rg7 Rh2 Rg5 Ka2 Qc8 Rh1 Qa6 Rh3 Qa8 Nc5+ Kd4 Be4 Ke3 Na4 Kd4 Bf3 Kd3 Bb6 Kc2 Rh4 Qf2 Be3 Qd2 Nh3 g1B Rg4 Bf2 Ng1 g2 Be4+ Kc1 Rg3 Be1 Bd3 Rg4 Bb1 Rd4 Rg5 Rd5 Bd3 Qf4 Bh7 Qf5 Beg6 Kc2 Be8 Bf8 h6 Bg7 Bhg6 Bf8 h7 Bh6 Ne2 g1B h8B Bgf2 Bh7 Bg1 Bf4 Bd4 Be3 Ba7 Ng1 b1B+
1b5R/1pQr1BPb/1N1pp1nq/6BQ/RnRb1R2/1R1n4/1q1P2k1/1K3b2 w - - 0 1 legal: proof: e4 f5 exf5 a5 b4 axb4 f4 g5 f6 Ra4 c3 bxc3 f5 Rb4 Na3 Ra4 Nc2 Ra8 g4 Bg7 h4 Ra6 Nd4 Bf8 Ne6 Ra8 Nf4 gxf4 g5 Ra4 Bh3 Ra6 Bf1 Ra8 Bd3 Ra4 Bf1 Rd4 g6 Rd3 Bb2 Rg3 Bc1 Rg5 hxg5 Bh6 Qg4 Bg7 Qd1 Bf8 a4 c5 a5 h5 g7 Kf7 a6 c4 a7 f3 a8R c2 R1a2 f2+ Ke2 c3 Kd3 h4 Nh3 Nc6 R2a4 Rh7 Rd4 Qb6 Bb2 c1N+ Kc2 Nb4+ Kb1 Ncd3 Nf4 h3 Rc4 h2 Nd5 Qb5 Bh3 f1B Nb6 Qe5 Rg1 h1Q Rg3 Qc6 Ra4 c2+ Ka1 c1B Kb1 Qh1 Bg2 Qh6 Qh5+ Qg6 Bd4 Bb2 Be3 Bd4 Be4 e6 Rh3 Ne7 g8R Bg7 Bf3 d6 Re8 Bd7 Rh8 Bc6 Bd1 Be4 Bc2 Nc1 Bf4 Bc5 Rb3 Ncd3 Rd4 Ne1 Na8 Ba7 Nb6 Bf8 Bd3 Bb8 Bc2 Ke8 f7+ Kd8 f6 Kc7 Be3 Qh6 g6 Kc6 Bg5 Bg7 f8R Bf5 f7 Kc5 Be4 Ned3 Bc6 Qf6 Rh4 Be4 Rc8 Kd4 f8Q Ke5 Be8 Bf5 Rh1 Ke4 Qf7 Qc3 Rc6 Bd4 Rc4 Rg7 Rg1 Rh7 Rg4+ Kf3 Rf4+ Kg2 Qg8 Rf7 g7 Bh7 Qf8 Ng6 Qe7 Nf8 Qc7 Rd7 Bf7 Ng6 Rb2 Qa3 Rb3 Qb2+
q3nB2/P6q/b1R5/3NB3/P1QB3n/Bppr3b/BRn2p2/Qnbk2K1 w - - 0 1 legal: proof: f4 d5 b4 a5 bxa5 e5 g4 exf4 c3 f3 c4 dxc4 Nh3 f5 Na3 h5 Ng1 b5 Nc2 f4 Ne3 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 Bc5 Ng4 hxg4 Qa4 Bd6 Qd1 Bf8 Kf2 Kf7 h4 Kf6 d4 g5 a4 c5 e4 g3+ Ke1 c3 d5 Ke5 d6 g2 Kf2 g4 h5 c2 h6 g3+ Ke1 b4 h7 f2+ Ke2 c4 d7 c3 a6 b3 a7 Nf6 Rh3 Bh6 Ba3 c1Q Ra2 Qb1 Rb2 Ne8 f6 Na6 f7 Nb4 f8B Nc2 Rh4 Bg5 Nh3 Ba6+ Qd3 Rg8 Qc4 Qa8 d8B Bh6 Kf3 g1N+ Kg2 Nf3 Bd3 Nd2 Bb6 f1B+ Kg1 g2 Bbc5 Bg5 Rh6 Rg7 Rc6 Rd7 Kh2 g1N h8B+ Bf6 Kh1 Ngf3 Be3 Nh4 Kg1 f3 Nf4 Rd6 Nd5 Bh3+ Bf1 Ke6 e5 Kf5 e6 Bg5 Bed4 Ke4 e7 Bh6 Bhe5 Bf4 Kf2 Rd8 Be2 Qh1 Bd1 Nb1 Be2 Bc1 Bd1 Nf6 e8Q Rd6 Qe6 Ne8 Qf1 Rd8 Qg1 Kd3 Qeg8 Ne1 Bc2+ Kd2 Bd3+ Kd1 Be4 Nd2 Bb1 Rd7 Ba2 Nb1 Qf1 Rd6 Qc4 Nc2 Qg2 Qh2 Kf1 Qf4 Kg1 Qe4 Qh1 Qh7 Bh2 Re6 Bhd6 Re3 B6e5 Rd3 Nb6 Kd2 Bab4 Na3 Nd5 Ke1 Bbd6 Bh6 Kh2+ Ke2 Qb1 Bc1 Kg1 Kd1 Qa1 Nb1 Ba3 f2+
Rb2Q1K1/N4N2/1r1b3N/B1p2r2/r2k2Pq/2r1r1p1/nNPpR2r/1Q1N4 w - - 0 1 legal: proof: d4 e5 b4 exd4 e4 a5 Ne2 axb4 Ng1 f5 f4 Be7 g4 Bc5 e5 Kf7 Bg2 Bd6 Be4 fxe4 f5 Ke8 f6 Bf8 h3 g5 Qf3 b6 Qd3 Nc6 Qe2 Nce7 Qd1 Nf5 Qd3 Ba6 Qd1 Be2 gxf5 g4 Nc3 g3 Nb1 Bg4 hxg4 Rc8 Ne2 Rb8 Ng1 Ra8 Ke2 Kf7 a4 d5 a5 h5 a6 c5 a7 b5 Rh2 d3+ Ke3 h4 Kf4 b3 Kg5 e3 Rh1 h3 Ra5 b4 Ne2 d4 Ra6 b2 Nbc3 b1R Rh2 b3 Nf4 d2 Re2 h2 Nd3 h1R Nb2 d3 Ra4 Ne7 e6+ Ke8 Qe1 d1R Bd2 Nd5 Kg6 Rf1 f7+ Ke7 f6+ Kd6 e7 Ke5 e8N Rf5 Ng7 Bd6 f8N Rh2 Kf7 Nb4 Nd7+ Kd4 Ne5 Rbc1 Ra1 Na2 Qf1 Re1 Ncd1 Rb1 Ba5 Qh8 Qh1 Qh4 Qg1 Bb8 Kg8 d2 f7 Bd6+ f8N Bb8 Rf2 e2 Nf7 Bd6 Nd3 Bb8 Nd7 b2 Nb6 Rf3 Nb4 Rc3 Nc8 Rf1 Nd3 e1B Re2+ Bf2 Qh1 Be3 Qb7 Bef4 Nf5+ Kc4 Qb6 Bfd6 N5h6 Kd4 Qb5 Rc1 Qb3 b1R N3b2 Nb4 Ra3 Rf5 Ra2 Ra1 Ra4 Ra3 Qa2 Re3 Qb1 Rac3 Ra3 Bbc7 Ra1 Rb8 a8Q Na2 Qc6 Rb6 Na7 Bb8 Qb5 Bdc7 Qe8 Bd6 Nf2 Rf1 Nfd1 R1f4 Bb4 Nc1 Nc8 Kd5 Ra8 Na2 Ba5 Ra4 Na7 Kd4
3rNQ2/1n3b2/k3PK2/PnBpb2Q/Q2b1pbR/n1Q1Q3/3p4/2nq1R1B w - - 0 1 illegal: No possible last move, all moves rejected
2bn2QR/2BB1nnB/1K3P2/1r2p2p/2b3rN/1BNBpP1k/bQ3n2/6b1 w - - 0 1 legal: proof: h4 a5 f4 c5 a4 g5 hxg5 f5 b4 axb4 d4 cxd4 Ra3 Qb6 Re3 Qc6 Re6 Qf3 Re4 fxe4 exf3 Ra7 Bd2 Ra5 Bc1 Ra8 Ke2 Kf7 c4 Kg6 g4 h5 c5 d5 a5 b5 a6 e3 Kd3 b3 a7 b4 c6 b2 c7 b3 Ne2 Nh6 Nbc3 b1B+ Qc2 b2 Rg1 Ba2 Ng3 b1B Nf5 Rg8 Bb2 Nc6 Nh4+ Kg7 f5 Nf7 g6 Kh6 g7 Kg5 f6 Ncd8 Be2 Rb8 a8Q Rb5 Rd1 Kf4 g5 Kg3 g6 Kh3 Ba3 Bb3 Bd6 B1a2 Qb2 e6 Bg3 Bc5 Rg1 Bd7 c8B Bc4+ Kc2 Bb6 Bd3 Bc5 Bc7 Bb6 Bb7 Bc8 Bc6 Bc5 Bd7 Bb6 Qb4 Bc5 Kb2 Ba7 Ka3 Bc5 Be2 d3 Ka4 d4 Qb2 d2 Bd3 d1N Qb8 Nf2 Rb1 Rh8 g8B Rh6 g7 Rg6 Rg1 Rg4 Bgh7 Bd6 Qc2 Bh2 Bc6 Re4 Qb6 Nh1 Bd7 Rf5 Be2 d3 Qbb2 d2 Bd3 d1N Qcc1 Ref4 Rg4 Ndf2 Qg1 Rb5 Rg5 Rb4+ Ka5 Ng3 Re5 Nf5 Re4 Bb5 Kb6 Rb3 Qg6 Rg4 Re5 Bg1 g8B Nh8 Qf7 Ng7 Qf8 Ne8 Rg5 e5 Bgc4 Nhf7 Rg8 Ng7 Rh8 Rb4 Qg8 Rb3 Bd5 Rb4 Bb3 Bc4+ Ka7 Ra4+ Kb6 Ra5 Qa3 Rc5 Qb2 Rb5+
Q1n3Bn/2pB2B1/1NQq4/npRn3P/2Pq4/2B1q1k1/R3p1r1/1q1BK1r1 w - - 0 1 illegal: No possible last move, all moves rejected
4nBN1/4r1p1/4N1Pp/1qR1b2r/K1P4R/1Rpq2k1/p1Qr1bn1/4R1RQ w - - 0 1 illegal: No extended proof kernel
R3n3/p4Q2/1PN3r1/P1np1N1Q/kp1n1B2/pN4q1/2N2bBq/N1bK3b w - - 0 1 legal: proof: e4 g5 a4 b5 b4 f5 exf5 c6 d4 Na6 c4 Kf7 h4 gxh4 a5 Rb8 d5 Nh6 d6 Ng8 Ra4 Ke8 Qd2 Rb7 Qf4 Rc7 dxc7 bxa4 b5 c5 Qd2 Bg7 Qb4 cxb4 c5 Bf8 f4 d5 g4 Kd7 c6+ Kd6 b6 Kc5 g5 h5 f6 e5 f7 a3 f5 e4 g6 e3 g7 e2 f6 Kb5 Bg2 h3 Bf4 h4 Nf3 h2 Nd4+ Ka4 Nd2 h3 Nc2 Bd7 c8N Bf5 c7 Bd3 Nb3 Be4 Nd6 Qb8 c8N Rh6 Nca1 Rg6 Ne7 Nc5 Nc6 Be7 Rg1 h1N f8N h2 f7 Ng3 Nf5 h1Q Ne6 Qh2 f8Q Nf6 g8Q Ne8 Ned4 Bg5 Qh6 Qc7 Kd2 e1B+ Kd1 Bf2 Qh5 Ne2 Ndc2 Nd4 Qf7 Qb8 Bd6 Bge3 Bf4 Bc1 Re1 Bd3 Re7 Be4 Rd7 Qe5 Rd8 Qg3 Ra8 Qh8 Bh3 Bh1 Bg2 Qh6 Qg4 Qhh4 Qh5 Qhh2
Nb3N2/q2bn1rK/N5P1/1R1n1p2/kp1Nn2Q/1npQ4/2P1Bp2/2R3Nn w - - 0 1 legal: proof: b4 a5 g4 e5 a4 g5 f4 gxf4 d4 b5 g5 h6 g6 Ra6 Bd2 Rb6 Be3 axb4 Bd2 b3 Bc1 b4 Be3 Rb5 axb5 Ne7 dxe5 Bg7 Bc5 Ng8 Be7 Bf8 Bg5 hxg5 Kf2 f5 Kf3 c5 e4 d5 h4 Kd7 h5 c4 b6 Kc6 e6 Kb5 b7 d4 h6 b2 h7 g4+ Kg2 d3 e7 g3 Kf3 d2 e8N g2 e5 Na6 b8N Ne7 e6 Rg8 h8Q Qd7 Be2 Nc7 Qh4 Ncd5 Na6 Qa7 Na3+ Ka4 Nec7 b1N Na8 c3 Qf1 d1N Nb5+ Na3 Nd4 Bd7 Rc1 Nf2 Qd1 Nb1 Qd3 Ne4 Rh3 Nc6 e7 Bg7 e8N Nce7 Nec7 Be5 Nce6 Bc7 Nf8 Bb8 Bf1 Nbd2+ Ke2 Bc7 Re3 Nb3 Kf3 Bb8 Be2 Nd6 Kf2 f3 Kg3 f2 Re5 Ne4+ Kh3 Nb6 Rb5 Nbd5 Qhg3 Qc7 Kh4 Qa7 Ngf3 g1N Kh5 Nf4+ Kh6 Nfd5 Bf1 Ne2 Qh4 N2g3 Ng1 Nh1 Be2 Rh8+ Kg7 Rg8+ Kh7 Rg7+
2R2r1b/Q3P2p/rpN5/2Rn3P/6RR/Rb1K1k2/BQ2pp1r/rb2qN2 w - - 0 1 illegal: No possible last move, all moves rejected
1B1B2Q1/1qP2K2/3n2Bp/pP1pQ2p/1r1n1N2/rq5B/4Bb1k/Nr2r1R1 w - - 0 1 legal: proof: g4 c5 f4 e5 d4 exf4 b4 cxd4 a4 b5 axb5 Bb7 Ra6 Ke7 Rh6 gxh6 h3 Bf3 g5 Bg4 hxg4 h5 Bd2 Ke8 Be3 Qf6 Bc1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 e4 a5 b6 f5 b5 h6 b7 f3 g6 f4 g7 d6 g5 d3 g6 f2 Be2 f1R Na3 d2 Qe1 d1R Nh3 f3 Nf4 f2 Rg1 Nf6 g8B Ne8 g7 Qe7 Be6 Rg8 Bh3 Nc6 b8B Qb7 c3 Ra7 Nc2 Nd4 Na1 Rd3 Bd2 Be7 Be3 Rf8 g8Q Bh4 Bc1 Bg3 Ba3 Re3 Bc5 Rf7 Bb6 Rg7 Bd8 Rg4 Qd2 Rd3 Qe3 Bh4 Qg3 Rb1 Qe3 f1Q Qg3 Qa8 Qe1 Re7 Qg3 Kf6 e5+ Kf5 e6 Qd1 Qh2 Qa7 Kd5 Bf2 c4 Ra3 c5 Qb7+ c6 Qb3+ Bc4 Rg7 e7 Rg6 Qg3 Re6 Qc3 Ree1 Qe3 Ng7 Qe4+ Kg5 Qe5+ Kh4 e8B+ Rg5 Bg2 Kg3 Bg6 Ngf5 Bf1+ Kh2 Bh3 Qb4 Bcf1 Rg4 Be2 Qb3+ Bc4 Nc2 Ke6 d5 c7 Nd6 Be2 Nd4+ Ke7 Rg3 Kf8 Rc3 Ke7 Rc4 Kf8 Rb4 Kg7 N6f5+ Kf7 Nd6+
1b1q1q2/1p1Pb2B/pknBQp1Q/1P1B2b1/6p1/b2R4/2KR4/n1BNB2r w - - 0 1 illegal: No proof kernel
1Q1n4/2RRbPn1/1Rr1pkb1/1K1n1pRr/6bP/2NQ1BBp/5R1p/7b w - - 0 1 illegal: No proof kernel
K1QR3N/nr2B3/1Ppb3n/1kNrp1nN/3Q3q/P1pp4/q1B3p1/3N3N w - - 0 1 legal: proof: g4 a5 b4 b5 e4 e5 c4 h5 d4 d6 a3 Bf5 d5 Be6 dxe6 bxc4 b5 f5 exf5 hxg4 Ra2 Be7 Rb2 Bf8 Rb4 axb4 Kd2 g5 Ke3 c3 Ke4 g3 Kd5 g4 h4 g2 f4 g3 f6 b3 f5 b2 e7 Kd7 e8N Bg7 h5 Bh6 b6 Ra4 f7 Nc6 f8Q Qc8 f6 Bf4 h6 Ra7 h7 Nb8 f7 Qd8 Bd3 Be3 Bc2 Nc6 Ng7 Nh6 Nh3 g1N Nf2 g2 Qd4 Nh3 Rd1 Ng5 Nh1 Rb7 Nh5 Na7 Rd3 Rg8 h8N Qf6 Qb8 Rd8 Rd1 Qf2 Qa8 Qh4 f8N+ Ke8 Ne6 Kd7 Qc4 Bc5 Qd4 Ngf7 Bg5 Bb4 Nd2 b1Q Be7 Ng5 Nf1 Qa1 Ne3 Qb2 Kc4 Kc6 Nc5 Qa1 Qc8 d5+ Kb3 Qa2+ Ka4 Rd7 Rd2 Rd8 Nd1 Rd7 Nb3 Bc5 Ka5 Bd6 Ka6 Rd8 Nc5 Rd7 Rf2 Rd8 Rf8 Rd7 Qf2 d4 Rd8 d3 Qe3 Kd5 Qg1 Kc4 Qe3 c6 Qg1 Bb8 Qf2 Rd5 Qg1 Rbd7 Qe3 Bc7 Kb7 Bd6+ Ka8 Kb5 Qd4 Rb7
1BB1Nq2/2Q1brBp/3Pq1bP/2Qq1R1r/1B1B4/4b2n/k2n2bK/1N2b2r w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 f5 c4 dxc4 e4 g6 f4 fxe4 f5 g5 Ra3 Nc6 Rf3 Nb8 Rf4 gxf4 Kf2 Kf7 d4 e5 h4 c5 g4 a5 Kg2 f3+ Kh2 e3 g5 e2 f6 Ke6 g6 Kd5 f7 e1Q g7 f2 h5 c3 h6 a4 b6 c4 b7 a3 b5 c2 b6 c3 Nh3 e4 Ng5 a2 Kg3 a1Q Nh3 e3 Bg2+ Kc4 d5 Kb3 d6 f1B+ Nf2 e2 Bb2 Na6 b8B Ne7 g8Q Bf5 b7 Ka2 Qg5 c1B Qf4 c2 Na3 Bg6 Bc3 Be3 Rh5 c1R Qe5 Nc5 Bb4 Nb3 Bh3 Nd5 Nb1 Qd4 Rf5 Bg2 Kh2 Nf4 Ba7 Be7 f8B Qd5 b8B Nd2 Bd4 Ra5 Bg7 Rf8 Ng4 Rf7 Nf6 Qf8 Bg4 Nh3 Ne8 Qh4 Qf1 e1B Qd3 Qe6 Qc3 Qg5 Qec5 Qh5 Qc7 Rd5 Q3c5 Re5 Be2 Qf3 Ba6 Qfd5 Rf4 Rh5 Bc8 B1h4 Rf3 Rf1 Rf4 Be1 Rf5 Rh1#
4q3/1B1p2k1/1BB5/2q2n1K/nb1P1RN1/BrPQ3b/n1Rrr1n1/n1qB1Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Na3 exf4 axb5 Ba6 b6 Bb7 Nb5 Bc8 Nc3 c6 b5 c5 Nd5 Bb7 Nb4 cxb4 Ba3 Ba6 Bc1 Bc8 Kf2 a5 Kf3 f5 e4 Kf7 d4 h5 g4 a4 b7 b3 b6 a3 g5 a2 e5 b2 e6+ Kg7 e7 b1N e8B h3 g6 h4 Qe1 h2 Bc4 h3 Bd5 Nc3 Bef7 Na6 b8Q Bb7 Qe3 Ne7 Rb1 a1N Qd2 Na4 c3 Qe8 Be4 Nb4 Bb3 Na2 Qc7 Rb8 Bc6 Ba6 b7 Bf1 Kf2 f3 Kg3 f2 Bd1 f4+ Kg4 f3 Ba3 Nf5 Qcf4 Bb4 Rc1 Bg2 Qd3 f1Q Kg5 f2 Nf3 Rh6 Rg1 h1Q Rc2 h2 Ne5 Bh3 Ng4 Qd5 Rg3 h1R Rf3 Qb5 Qc1 Qd5 Rf4 Rh2 Qb1 Rh8 Qc1 Rf8 Kh5 Qc5 Qb1 Qh1 Qc1 f1N Qb1 Ra8 b8B Rd2 Bc7 N1e3 Bb6 Ng2 Bb7 Rb8 Qc1 Kg8 Qb1 Rf7 g7 Kh7 g8B+ Kg7 Qc1 Re7+ Bf7 Ree2 Qb1 Qef8 Bfd5 Qfc8 Bdc6 Qf1 Qb3 Qe8+ Qf7+ Kh8 Rf2 Nb3 Bc7 Ba5 Ba8 Na1 Bd8 Rb5 Bab7 Rb3 Bb6 Bb4 Rf3 Nd6+ Rf5 Re6 Be2 Qc1 Bd1 Ree2 Rg5 Qa8 Qf1 Qg8 Re5 Nf5 Re4 Kg7 Rf4 Qe8+
QnNk1b2/nnb1N3/1bpr4/3bB1Bq/K4PrR/2P1B2b/3qB3/Q3r1B1 w - - 0 1 legal: proof: e4 g5 b4 f5 h4 fxe4 a3 gxh4 Ra2 d5 a4 b5 Ra3 d4 Re3 dxe3 axb5 Bf5 Be2 Be6 Bf1 Bc8 d4 a5 f4 h5 g4 e5 b6 h3 b5 e2 Kd2 e1R Kc3 a4 b7 h4 d5 a3 Kb3 e3 d6 a2 g5 a1B g6 e2 b6 c6 g7 h2 Nc3 h3 Bd2 e4 Nd5 e3 Nf3 Bd4 Qc1 Rh6 Kb4 Ne7 g8Q Bf5 Qh8 Nc8 Nh4 Na7 Qa1 Qd7 Kb3 Kd8 Ka4 Rg6 Bc1 Rg4 Ne7 Be5 c3 Be6 Rg1 h1Q Nhg6 h2 Nc8 Qd5 Rg3 h1B Rh3 Qe8 d7 Qd2 Rh2 Bc7 Nge7 Qh5 Rh4 Bed5 Qg8 Bhg2 Qh8 Bh3 Qg8 Rd1 Qh8 e1B Be2 Bf2 Qg8 Na6 b8B Re1 b7 Bg1 Bd3 e2 Qh8 Bcb6 Be5 Bc7 b8B Bgb6 Bd4 Rd1 Bc4 e1N Be2 Nd3 Bg1 Re1 Qg8 Qb2 Bce3 Qd2 Qh8 Ndc5+ Ka3 Nb7 Ka4 Ba5 Qg8 Bcb6 Be5 Nb8 Bg7 Kc7 d8B+ Kd7 Be5 Bc7 Ng6 Bab6 Bg5 Ke8 Nge7 Kd8 Ka3 Nb5+ Kb4 Ra5 Qh8 Na7 Qg8 Rb5+ Ka4 Rbb1 Qh8 Rbd1 Qb1 Bf3 Nf5+ Ke8 Qf6 Qb2 Qa1 Na6 Ncd6+ Kd7 Qg6 Rd5 Ne7 Qd2 Ndc8 Rd6 Qd3 Nb8 Ka3 Bd5 Ka4 Kd8 Qa6 Nb5 Qa8 Na7
R2nbNk1/3Qq2q/bP1pn2Q/8/NQ2B3/R1r2Q1r/3P1nKq/n1Qrb3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ba3 exf4 axb5 c5 b6 Nh6 b5 Ng8 Bb4 cxb4 Kf2 h5 g4 f5 c4 Kf7 e4 a5 b7 d6 c5 h3 e5 h2 c6 f3 g5 h4 c7 f4 b6 a4 Bh3 a3 Bg4 a2 Qa4 h3 Bd7 b3 Kf1 f2 Qb4 b2 Ne2 Na6 b8Q Nc5 Nd4 Qe7 Ne2 Ra3 Bb5 Bd7 c8Q Ne6 Qc6 Rc3 Qbc7 Be8 Bd3 Nh6 g6+ Kg8 g7 Nf7 Qf3 Nfd8 Nd4 Rh7 Rg1 h1Q Be4 h2 Qcc5 Rh3 Qc7 Rc5 Nc3 Rc6 Na4 b1Q+ Qd1 Qc2 Qf3 Rc3 Qc6 Qb7 Qc7 Be7 Qcc4 Bh4 Qcc5 Ng5 Ne6 Qe7 Nf8 Nge6 Qce3 Bg3 Qe1 Bh4 Qc1 Bg3 Bd5 Qh7 Be4 Ng5 e6 Bh4 Rb1 a1N Rb3 Bg3 Ra3 Qg2+ Ke2 h1N Re1 Qh2 Kf1 Qd7 e7 Nge6 Re3 Qa7 Rd3 Qb7 Rd5 Qd7 Ra5 Bh4 Ra8 Qa7 Ke2 f1R+ Qg2 Nf2 Qf3 Bd7 e8Q Rd1 Qg6 Be8 Qh6 Bg3 Qfh5 Qb7 Qhb5 Qe7 Qd7 Nd3+ Kf3 Bf2+ Ke2 Be1+ Kf1 f3 Ng6 f2 Nf8 Qe5 Kg2 f1B+ Kg1 Be2 Kg2 Nf2 Qe3 Kf7 g8Q+ Kf6 Qgg5+ Kf7 Qg4 Ba6 Qgf3+ Kg8 Qh6 Qh2#
b1qB1R2/5qb1/N2Qb1k1/N2P3R/3rb2p/N4b2/1N1Nn1nP/QKbr1q2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 f5 b5 axb5 g4 e3 e6 Bd3 exf5 Be2 f4 Bf3 gxf3 d4 h5 Kd2 a5 Kc2 f5 g4 Kf7 b4 c5 b6 a4 b5 c3 b7 a3 e4 f2 b6 f1B e5 a2 e6+ Kg6 e7 h4 e8N c4 g5 f3 Nc7 f4 Qe1 f2 Qe7 f3 Nb5 Be6 Na7 Bd3+ Kd1 f1B Bb2 f2 Kc1 c2 Qd6 Qc7 Nd2 Nf6 Ba3 Qf7 Nh3 Nc6 b8N Bg7 b7 Nh5 Na6 Rad8 b8N Bfe2 Rf1 Be4 Nb5 Nf4 Kb2 Ng2 Nf4+ Kf5 g6 B2f3 Nd3 c1B+ Kc2 c3 Bb4 Rd7 Ba5 Rhd8 Na3 Kg5 Rb1 a1Q Rb5+ Kh6 Qc5 Rd5 Qd6 Rd7 Bd8 Kh5 Kb3 c2 Rc5 Qc3+ Ka2 Kh6 Nb2 Qd3 Re1 f1B Re2 Qb5 Rf2 Qb7 Ra5 Qc8 Ka1 Be5 g7 Kg6 g8Q+ Bg7 Qh8 Bfd3 Nc5 Ba6 Rf1 Bb7 Nca6 Ba8 Rf2 Rc5 Rb5 Rc3 Rh5 Rd3 Rf1 Ra7 d5 Nd4 Ka2 Ne2 Nc6 Rb7 Na5 Rbb3 Ndc4 Rd1 Nd2 Rd3 Na4 Bf8 Qa1 Bh6 Nb2 Bg7 Ndb3 Bd2 Rf2 c1Q Rf1 Q1c4 Rf2 Bc1 Kb1 Qd4 Rf1 Qg1 Rf2 Qf1 Nd2 Bg4 Rff5 Bgf3 Rf4 Qfd7 Rf8 Qdb7 Rg8 Qf7 Rf8 Rd4+
1KBBQ1q1/R3Br2/5QNk/1qR3n1/3bPpBn/3B1Pr1/b3n1r1/1n3br1 w - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Nh3 cxd4 Nc3 d3 Ng1 e6 Nd5 exd5 Rh2 d4 Rh3 Na6 Rh1 Nb8 Kd2 f5 b4 Kf7 c4 Kg7 g4 a5 e4 h5 b6 d5 f3 f4 g5 a4 b5 a3 b7 a2 c5 h3 c6 h4 b6 h2 c7 h3 g6 Na6 b8B Bc5 b7 Nh6 Qe1 Nf5 Qg3 Rf8 Qg2 Kh6 g7 Nh4 g8B Be6 c8B Rf7 Ba7 Nc7 Bh7 Qg8 Rb1 a1Q b8Q Qa6 Bg6 Qb5 Bb6 Ra2+ Kd1 d2 Bd3 Rb2 Ke2 d1N+ Bd2 Rc2 Rc1 Nc3+ Kf2 Ra2 Bf5 Nb1 Ne2 Rb2 Rhf1 h1B Bb4 h2 Bg4 Rd2 Qg3 Bg2 B6a5 Bb6 Be7 h1R Rc5 Rg1 Ke1 Bh3 Nc3 Rdg2 Qh2 Rg3 Qb2 R1g2 Rf2 Ba7 Ke2 Bb6 Nd1 Ba7 Ne3 Bb6 Nc4 Ba7 Ne5 Bb6 Bc4 d3+ Kd1 d4 Ng6 d2 Kc2 d1R Bd3 Bd5 Qc3 Ba7 Qa8 Ne6 Bad8 Re1 Qc6 Reg1 Qe8 Ng5 Qa1 Rf5 Qa6 Rf7 Qf6 Ba2 Re2 Nc3 Rd2 Ne2 Rd1 Rf2 Ra1 Bf1 Kd2 Rfg2 Kc2 Be6 Ra3 Bb6 Ra7 Bb3+ Kb2 Bc4+ Ka3 Ba2 Bc2 d3 Bb1 d2 Bd3 Qd7 Kb4 Qf5 Kb5 d1N Kc6 Ndc3 Kb7 Nb1 Kb8 Qd7 Rd5 Bd4 Rc5 Qb5+
K4r2/1p2b2q/N2NN2k/PQB2Q1q/5rnN/q2q2R1/bP2Nn1b/2n3Rb w - - 0 1 illegal: No proof kernel
bk3n1n/Rp1q4/1BQ2NB1/5Pb1/prr5/P2NbrNn/NqQK4/1q5N w - - 0 1 illegal: Other
4RQQq/r3rR2/1QQNNpnb/2B2Pp1/q3Q3/1r1bKq1r/2rP1n2/4k3 w - - 0 1 illegal: No possible last move, all moves rejected
2Q1nn1n/2r1R3/BqpBr1k1/qQ1R1R2/KR3p1q/7n/bb1PRP2/6Nn w - - 0 1 illegal: No possible last move
4q1qq/rr6/kBN2Rn1/p5Rb/N3p2b/2R1RR2/1qrqP1P1/1nQ1Q2K w - - 0 1 illegal: No proof kernel forced: bxLB
1r2Q1R1/5B1r/n1p2BNp/2k1b2b/2P1RPn1/bKB4B/2rQ1r1B/3q2qr w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 e5 d4 Nc3 f6 Nd5 fxe5 Ne3 dxe3 Qe2 e4 Qh5+ Kd7 Qd1 Ke8 c4 Kd7 d4 Kd6 g4 e5 b4 a5 d5 h3 g5 h6 b6 a4 g6 a3 b5 e2 Kd2 e1R Kc2 h2 b7 e3 b6 a2 g7 e4 Bb2 c6 Qd2 e2 Nh3 e3 Kb3 Na6 b8Q+ Kc5 d6 Nf6 g8B Rh7 b7 Bg4 d7 Bh5 Bf7 Rc1 Nf4 e1R Rg1 h1R Rg8 e2 Bh3 Ref1 Ng6 e1Q Bc3 Rc2 f3 Qg3 Re1 a1B Re4 Ng4 Qc8 Be7 b8B Qg1 Bh2 Rf2 f4 Bb2 Qb8 Bf6 Qc8 Be5 Qb8 Ba3 Qc8 Qf8 d8B Qd6 Bf6 Qd3 Qe8 Qe2 Qe1 Qd1 Qd2 Rb8+
rr1q2r1/pb5Q/r3kNN1/P1nR3K/5R1Q/b1Bq2n1/1PQ2b1p/Q3rQ2 w - - 0 1 legal: proof: e4 b5 d4 f5 c4 bxc4 h4 g5 d5 gxh4 Bd3 e6 dxe6 Qf6 e5 Qd8 Be4 fxe4 Ke2 Ke7 a4 d5 f4 h5 g4 c5 a5 d4 g5 e3 Kf3 d3 g6 h3 g7 h2 f5 e2 Ra4 e1R Bd2 h4 Kg4 h3 Nf3 c3 Qc2 c4 Nh4 Nh6+ Kh5 Nd7 g8Q Bb7 Rb4 Nc5 Qh7+ Bg7 Rb5 Rg8 Rf1 h1R Rf3 h2 Rf4 Reg1 Be1 Rg6 Nd2 Rb8 Ne4 d2 Nf6 d1Q+ Qe2 c2 Bc3 c1B Qg4 Na4 Rd5 Qd3 Qg1 Be3 Qa1 Kf8 e7+ Kf7 Nd7 Bf2 f6 Ke6 f7 Rc1 f8Q Nf5 Nf6 Nc5 e8Q+ Qe7 Bb4 c3 Qd8 c2 Bc3 Re1 Qc7 c1R Qcd8 Rg4 Ng6 Ra8 Qc7 Rcd1 Qfd8 Bf8 Qc6+ Qd6 Qca4 Be7 Qc2 Rh8 Qf8 Qd8 Qfh6 Rgg1 Qg5 Rc1 Qh4 Ng3+ Kg5 Na6 Qca4 Qd6 Bb4 Nf1+ Kh5 Rc6 Qc2 Rhb8 Nh8 Qd8 Bc3 Rg8 Ng6 Bf8 Rfd4 Kf5 e6+ Re5 Rg4 Ba3 e7 Nc5 e8Q Ra6 Re4 Qd2 Qb5 Ke6+ Kg4 Qd4 Rf4 Ng3 Qbf1 Re1 Kg5 Qd3 Kh6 Ne2 Kh5 Ng3+
r2b2Nq/1Q1Q4/n4qN1/p2Q4/r4rb1/KPQRR3/Prb1Qp2/2kr1Bn1 w - - 0 1 legal: proof: f4 b5 g4 g5 c4 bxc4 d4 e5 dxe5 h6 Be3 Nc6 Bf2 Nb8 Bh4 gxf4 g5 Ba3 g6 Bf8 Bg5 hxg5 Kd2 Ke7 Kc1 Ke6 h4 Kf5 h5 Ke4 e3 c5 b3 d5 Kb2 f5 e6 a5 e7 g4 e8Q+ Be7 g7 g3 h6 g2 h7 c3+ Ka3 d4 Ba6 f3 Qd7 c4+ Qd6 f2 Qb4 f1Q Qc2+ d3 Qd6 f4 Qb2 c2 Nh3 c1R Rg1 f3 Qf2 d2 Qh4+ Bg4 Bc8 d1B Ba6 c3 Nf4 c2 Qh1 Nf6 g8Q Nfd7 Ng6 Ne5 Bc4 Bf6 Qd7 Na6 Qge6 Rf8 h8Q Qf2 Re1 g1R Bf1 Rg2 Re2 Qh4 Qeg8 f2 Nc3+ Kf3 e4 Rb1 Qge6 c1R Nd5 Bc2 Nde7 Rb2 Qed5 Rd1 Ng8 Qh7 Rd2 Ke3 Qhg7 Nf3 e5 Qh4 e6 Ng1 e7 Qh8 Qhh7 Qb6 e8Q+ Qe6 Qh1 Bd8 Rc1 Rf4 Qc3+ Bd3 Q5b7 Rh2 Qhd5 Rh4 Qcc7 Bdf5 Rc6 Qee5 Re6 Bc2 Rd4 Bd3 Qee7 Kd2 Qcc4 Qf5 Re3 Qff6 Qcb4+ Kc1 Qc3+ Bc2 Rdd3 Rh5 Qee4 Re5 Qf3 Ree4 Qe2 Ra4+
1N1k4/r2rn1B1/np3r2/4pQ2/R1rqR1N1/2NQP3/NK2b1rP/1rr1N1b1 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 g6 h3 Bg2 hxg2 Bb2 fxg6 Ba3 g5 Bc1 g4 a4 g5 d4 c5 Kd2 e5 Kc2 b6 f4 c4 f5 b3+ Kb2 g3 a5 g4 a6 Bd7 a7 Bc8 d6 Bb7 f6 Rh7 d5 Rh6 Qd3 Ne7 Ra4 Na6 Nf3 g1R Ne1 g2 Nc3 g3 f7+ Kd7 Bd2 Rf6 Na2 Bc6 Bh6 Bb5 Bg7 c3+ Ka3 c2 Kb2 Rc8 a8N c1R Nc7 Rgf1 Re4 g1R Ra4 Bc4 Nb5 Rg2 Nbc3 R1f4 Rf1 Rd4 Rf4 Ra8 Rg4 Ra7 Re4 Kc8 d7+ Kc7 Nc2 Bb5 Ne1 Rc4 Bh8 Bh6 f8Q Be3 Bg7 Bf2 e3 Bg1+ Ka3 b2 d6+ Kc6 Qf7 b1R Qh5 Ra1 Qf5 Rd2 Kb3 Rdd1 Kb2 g2 Kb3 Qg8 Kb2 Qe6 d8N+ Kd7 Nc6 Ke8 Qff1 Qd5 Nb8 Kd8 d7 Qd4 Qf4 Bf2 Qf5 g1R Nf3 Rg2 Ne1 Kc7 d8N Bg1+ Qc2 Rdd2 Nf7 Rd3 Nh6 Kd8 Qcf2 Bd7 Qh7 Bg4 Qf5 Be2 Ng4 Qc5 Qh7 Rdd7 Qff5 Qd4 Qhg6 Rf7 Qd6 Rf6 Qd5 Qc5 Qd2 Qd4 Qd3 Rab1+
b4R1N/1QR1p3/1N2P3/n2qb3/1kp1QB1q/2r2K1n/2nP1b2/1bRrqRR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 c4 gxf4 axb5 d5 g5 dxc4 Bh3 Bb7 Bf5 Bc8 Bg4 hxg4 Kf2 Kd7 h4 Kd6 b4 f5 e4 c5 h5 a5 h6 a4 h7 a3 b6 c3 b5 c2 g6 a2 b7 c4 e5+ Kc5 b6 f3 g7 f4 e6 g3+ Kf1 g2+ Kf2 Ra3 Qe1 Nf6 g8R Nc6 b8R Nh5 b7 Kb4 Rg4 Na5 Qe2 Bg7 Rhh4 Be5 Rh2 Qd5 Nh3 Rc3 Bb2 c1Q Qe4 Qh1 Ng5 Rg8 h8R g1B+ Kf1 f2 Ke2 f1N Rf2 Ne3 Rf1 Nc2 Nf7 Bf2 Rgg1 Qh4 Ra8 Rgg3 b8Q+ Bb7 Rf8 Rh3 Ra7 Rh1 Nh8 f3+ Kd1 Nf4 Ba3+ Kb3 Bd6 Nh3 Qc7 Ba8 Qb7+ Bb6 Bc7 f2 Ke2 Ka4 Bb8 Be3 Rc1 f1B+ Kf3 Bd3 Bd6 Bf2 Bc7 Rb3 Nc3+ Ka3 Rab1 a1Q Na4 Rc3 Rgf1 Rg1 Nb6 Rh1 Rce1 Rg1 Rbc1 Rh1 Rg1 Kb4 Ref1 Bg7 Bf4 Be5 Rce1 Qd1+ Kg2 Qe2 Rc1 Qe1 Kf3 Ne3 Bh6 Bb1 Bf4 Nc2+ Be3 Qh7 Qc6 Qd7 Rgg8 Qd3 Rc7 Qd8 Qb7 Qd5 Rg5 Qh4 Rg7 Rh2 Rh1 Qf1 Rg3 Rg2 Rg7 Rg1 Rg2 Qfd3 Rgg8 Re1 Rf1 Rd1 Rgg1 Qe2+ Kg2 Qe1 Bf4 Be3 Kf3 Bf2+
2n1NbbK/b1QPp3/1QpnP3/1r1q4/6Bk/5nN1/b4QrB/1qQ2QqR w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 c4 dxc4 f4 h6 g4 gxf4 g5 h5 Ra3 Kd7 Rg3 Ke8 Rg4 hxg4 Kf2 f5 e4 Kf7 d4 Kg6 h4 Kh5 g6 a5 e5 c6 b6 a4 d5 a3 d6 f3 Kg3 a2 Kf4 a1N b7 f2 g7 c3 b5 c2 b6 Be6 Ne2 g3 Nd2 g2 Ne4 g1Q Bh3 Nd7 b8Q f1B b7 Ra3 Qc7 Ra5 b8Q Rb5 Qbb6 Ngf6 g8Q Ba2 Qg3 Rg8 Qgf2 Rg2 e6 Ne8 Bb2 Nb3 Qc1 Nd2 Be5 Nf3 Bg4+ Kg6 Qa6 Nb6 Nf6 Nc8 Ng3 Bd3 h5+ Kh6 Qab6 Be4 Ke3 Kg5 h6 Qd7 h7 f4+ Ke2 Bg6 h8Q Bf7 Kd3 Bg8 Ke4 Qd8 Qcf1 c1B d7 Be3 Qh3 Bc5 Qc1 Ned6+ Kd3 Be3 Ne8 Bc5 Qbb8 Ba7 Qbb6 Rh2 Qhf1 Kh4 Bh3 Rg2 Bg4+ Nh2 Kd4 f3 Ke3 Ra5 Kf4 Rb5 Qfb2 f2 Q2d4 Nf7 Kf5 Nfd6+ Kg6 Nc4 Qfd1 f1Q Qf2 N4d6 Qde2 Qd1 Qef1 Qd5 Bf4 Bf7+ Kh7 Bg8+ Kh8 Bb3 Nf6 Ba2 Be5 Qe8 Bf4 Qg6 Ne8 Qb1 Be5 Qd2 Ne2+ Kg5 Bg3 Nf3 Bh2 Rf5 Q2e1 Rb5 Ng3 Kh4 Qef2 Qd5
QN2K3/n3P3/1kbpnRQR/1r1PbN2/rB1r4/1pQ5/1b2b2q/2q2QQq w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c6 b6 Bh6 b5 Qf6 b7 Bg7 e3 Bf8 b6 Qd8 Bb5 cxb5 Ke2 f5 Kf3 h5 c4 a5 g4 h3 d4 h2 c5 a4 e4 b4 d5 b3 c6 d6 g5 a3 e5 h4 e6 h3 c7 a2 g6 Bd7 c8Q Ra4 g7 Nh6 g8Q Nc6 b8Q Nf7 b7 Na7 e7 Ng5+ Kf2 f3 Kg3 f2 Bd2 f1B Qa8 Bc6 b8Q f4+ Kg4 f3+ Kf5 f2 Kg6 Ne6 Qb6 Be2 Nc3 f1R Nb5 Rff4 Bb4 Rd4 Nf3 Rhh4 Qcc7 Qc8 Qf1 Rh8 Re1 a1B Nh4 Bb2 Nf5 Rhh4 Qh7 Bg7 Qh5 Be5 Qh6 Bd7 Qc3 Bc6 Nc7+ Kd7 Kf7 Ra5 Qh7 Rb5 Na6 Qh8 Qbc5 Qc8 Nb8+ Kc7 Qg6 Rhf4 Q5c4 Kb6 Qfg1 Qh8 Rf1 Rh4 Ng3 Qh6 Rf6 Qc1 Nf5 Rf4 Qcg3 Re4 Qf1 Rh4 Qcc3 Rhf4 Rg1 h1Q Rg2 Rfe4 Rh2 Rf4 Qgg1 Rg4 Rf2 h2 Rf3 Qg2 Rh3 h1Q Rh8 Qgh2 Rh6 Nc5 Ba3 Ra4 Bb4 Rd4 Kf8 Ne6+ Kf7 Bb7 Ke8 Bc6+
1k3B2/4NBN1/PNK1r3/brpN1N2/1QPbq3/1q1q1pRb/2nn2n1/1q2Q3 w - - 0 1 legal: proof: b4 e5 a4 a5 f4 axb4 g4 g5 d4 h6 dxe5 gxf4 g5 h5 Ra3 Be7 Rg3 Bf8 Rg4 hxg4 Kf2 b5 c4 d5 e4 Kd7 h4 f5 g6 g3+ Kf3 b3 g7 b2 h5 b4 h6 d4 a5 g2 h7 b3 a6 d3 Qe1 d2 Rh3 d1Q+ Ne2 g1B Qc3 Bd4 Rg3 Nf6 g8N Nd5 Nh6 Bb4 Bg2 c5 e6+ Kc7 e5 Re8 h8N Ne3 e7 Nc6 e6 Kb8 Ng6 Ba5 Qb4+ Qb6 Bh3 Qd3 Nbc3 b1Q Na4 b2 Nec3 Ng2+ Be3 Qh1 Nd5 b1Q Bg4 Qb7 Bh5 Qbb3 Nab6 Qhb1 Ne5 Ra7 Bf7 Qa8 Ng6 Rb7 Na4 Rb5 Nab6 Rf8 e8Q Rg8 Qd2 Nb4 e7 Nc2 Qe1 Rh8 Qf8 Rg8 e8N Qc6 Ne7 Rg5 Qh8 Qe6 Ng7 Qee4+ Kf2 f3 Qg8 f4 Nhf5 Rb4 Qe8 Rh5 Qa4 Rb5 Qab4 Rg5 Kg1 f2+ Kh2 f1N+ Kh3 Rh5+ Kg4 f3+ Bf4+ Qe5 Bh6 Rh2 Kg5 Qee4 Kg6 Nd2 Kg5 Bg1 Kg6 Rh5 Kf6 Qh4+ Ke5 Bd4+ Kd6 Qhe4 Kc6 Rg5 Ne3 Re5 N3f5 Be6 Ne8 Bc8 Bf8 Be6 Neg7 Bc8 Ne3 Bh3 N3f5 Re6+
bB1qR1R1/P2n2q1/k2K4/r3Qnp1/2qp1B2/1Bb2Q1r/bq1P1nN1/2B1B3 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 c5 b4 cxb4 g5 b3 Nc3 h6 Nd5 hxg5 Nb4 axb4 Bg2 g4 Bh3 Qb6 Bf1 Qd8 Ke2 b5 Kd3 e5 Ke4 g5 Kd5 d6 f4 Kd7 c4 Kc7 a4 Kb7 h4 e4 h5 b2 c5 b1Q a5 b3 f6 b2 h6 b4 c6+ Ka7 a6 g3 f7 g2 h7 b3 c7 e3 f5 e2 f6 e1Q Bc4 Qd7 Qf3 Qe2 Nh3 g1N Nf4 Qd8 Ng2 Bg7 f8B Nd7 f7 Nh3 Re1 Nf2 Ra2 Qf1 Re8 Bc3 Be7 Qg6 f8B b1B Ra3 b2 Bb3 Kb6 a7 Ba2 Ra6+ Kb5 Bf6 b1Q Be5 Rb8 Bg3 Qg7 Rc6 Ba6 c8Q Qb2 Qc7 Nh6 Ke6 d5 Qe5 Rc8 Bd6 Bb7 Bb8 Qc4 Kd6 Ba8 Rc5+ Ka6 Rb5 Nfg4 Be1 d4 Rg8 Rc5 Re8 Rg8 h8B Nf2 Rb7 Rf8 Rc7 Rf4 Rc8 Rh4 Rg8 Qa5 Rcf8 Qd8 Re8 Ra5 Qe6 Qf7 Be5 Rh3 Bf4 Qg7 Qe5 Nf5+
3bQr2/2knN1Np/1Rq1qP1p/2n2QQ1/3rrR2/KbnBr2P/5Q2/Q4b2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 Bd2 fxe4 Bh6 b5 axb5 gxh6 Kd2 d5 Kc1 Kd7 c4 a5 f4 e5 b4 a4 Kb2 d3 g4 d2 b6 e3 g5 e2 h3 e1R c5 e4 f5 e3 b7 e2 b5 d4 b6 d3 g6 Na6 b8Q Qe8 c6+ Kd8 b7 Bg7+ Nc3 Nc5 Qf4 Qe6 b8Q Nf6 Ka3 Nfd7 Nf3 Rf8 Nh4 Bf6 g7 Ra6 Qdb1 d1B g8Q d2 Qgg5 Bb3 Qf2 d1N Nd5 Nc3 Ne7 Ra7 Qbf4 Ba6 Qd1 Rb7 Rb1 Rb4 Rg1 Bd3 Rg4 Rd4 Qe4 Ba6 Rf4 Kc7 Rb2 Bd3 Qa1 Bdc4 Qef3 Bb5 Qfh5 B5c4 Qe8 Bb5 Neg6 Bd8 f6 Ba6 Ne7 Bac4 Kb4 a3 Nhf5 a2 Ng7 Bd3+ Ka3 Ba6 Qb1 a1Q+ Qa2 Qb1 Qa1 Qbe4 Rb1 Rc1 Rb2 e1R Bd3 Re3 Rb1 Rce1 Rb2 Kb6 c7 Q4c6 c8Q Ree4 Rb1 R1e3 Rb2 Ne5 Qcd7 Bc4 Qd5 Ned7 Qdf5 Kc7 Rb1 Ba4 Rb6 Bab3 Bc2 Be2 Bd3 Bf1
n5Q1/pBNN1R2/rn2b2q/3QpbQr/1k5q/3Q1bb1/1nPRP2Q/1q5K w - - 0 1 illegal: No possible last move
3b2k1/Pn2Bpp1/N1q1q1r1/1QnNr3/rR1R1b2/1R1r2RK/3q1P2/R1Q4b w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g3 axb4 g4 hxg4 d4 Kd7 d6 e6 d5 Ra7 Bg2 Ra8 Bf3 Ke8 d7+ Ke7 Bg2 Kd6 Be4 Kc5 d6 Kb6 Bd5 exd5 Nd2 Kc5 Nb1 Kc6 Kf1 b5 Kg2 g3 e4 d4 h4 d3 a4 d2 h5 b3 e5 b4 e6 b2 a5 b3 a6 Nf6 e7 Bb7 e8Q Ne4 h6 Be7 h7 Nc5 Kh3 g2 Ne2 g1R Qf1 d1R Ra4 Rg6 Rg4 Rd3+ Ng3 Kd5 Rf4 Ke6 Qg2 Nc6 Rg4 Na5 Nc3 b1Q Rb4 b2 Rf1 Qc2 Bg5 b1Q Qg1 Qbb3 Ra1 Bh1 Qc1 Nab7 Nd5 Qd2 Bh4 Qc8 d8R Qbc3 Qa4 Re8 h8R c6 Rd7 Bd8 Qb5 Qe5 Rc7 Ra7 d7 Qee1 Nf6 Ke7 Rh7 Kf8 Nd5 Qee3 Be7+ Kg8 Rh5 Qa8 Rg5 Qe6+ Rgg4 Na4 Rc8 c5 Rb8 c4 Rb3 c3 Rb4 Ba5 d8R c2 Rd7 Nac5 Rd6 Bf3 Ne4 Bd8 Rb3 Qe5 Rg3 Bh1 Nb4 Qd5 Nc3 Qc4 Rd4 Qd5 Bd6 Re5 Be7 Qc6 Ncd5 Qd6 Qf1 c1B Qg1 Qc2 Qe1 Bf4 Qc3 Qd2 Qc1 Na5 Rb6 Qac6 Rb8 Rc7 a7 Nab7 Bf6 Rce7 Na6 R7e6 Rbb4 Rg4 Be7 Reg6 Rb3 Qe6 Qbc4 Na5 R8b4 Nab7 Qb5 Qf5 Rbc4 Be3 Rf4 Qfe6 Rce4 R4g5+ Rfg4 Rgf5 Ref4 Re4 Rh4 Ra4 Rfb4 Bh6 Rhc4 Bf4 Rd4 Re5+
1Qnr4/1Rp4r/R3K1p1/N2Nb1r1/nB2nRPk/2Q5/2n1n1P1/R2Rq1nb w - - 0 1 illegal: No proof kernel
Q1nnrRr1/3N3p/1QQ2Br1/K2N1P1n/2bRb2P/2bb1Q2/1Q2nq1p/4k3 w - - 0 1 illegal: No possible last move, all moves rejected
1N4KR/1nb1p1Pr/1R4q1/3QPNp1/1n6/nR2r1qk/3b1bR1/2QB1nRb w - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 g5 a4 b5 axb5 h6 b3 Qd7 Bb2 Qd5 Bf6 gxf4 g5 Qd6 g6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 Ke6 Kg4 a5 d4 c5 h4 f5+ Kh3 f3 e4 c3 h5 f4 Kg4 c2 b4 c1B b6 f2 b5 f3 b7 a4 b6 a3 h6 c4 Kh5 c3 h7 c2 Bb5 f1Q Ba6 a2 Nd2 f2 Nb3 Nh6 Rh2 Qg2 Na5 f1N Nf3 Qe8 Nc6 Bf4 Nh4 c1B Nf5 Bc7 Be2 Bd2 Qc1 Nf7 Bd1 Qg3 Rg2 Na6 b8R Nd8 b7 Nb4 d5+ Kf6 d6 Ra3 d7 Re3 Rb1 a1N Rb3 Bh6 Ra8 Nac2 b8R Nb7 d8Q Bf8 Qd5 Bg7 Ra1 Na3 Rab1 Na2 Rb6 Nb4 Rb3 Be6 Ra8 Bd7 Nb8+ Bc6 Ra4 Nb5 Ra1 Na3 Qdc4 Ke5 Qd5+ Kf4 Rab1 Bgc3 Kh6 Bd4 e5 Bc5 Kg7 Bd4 Re2 Kg4 Rf2+ Kh3 Rg2 Re2 Ra1 Bf2 Rab1 Re3 Ra1 Qd8 Kf7 Qd6 g7 Rd8 h8R+ Qh6 Rab1 Rd6 Nh4 Qg6+ Kg8 Rf6 Ra1 Rf4 Nf5+ Rh4 Ra2 Rh7 Rg1 Bc3 Qd3 Bh1 Qd5 Bfe1 Rf2 Bcd2 Rfg2 Bf2
Bk3b2/nN3Qr1/5pbN/N2n2Np/b4P1P/2n1n3/2nBrKN1/Rn1n3Q w - - 0 1 illegal: No possible last move
1b2nN2/3pnk2/r3NpRK/QNB2P1Q/1r1r1Nq1/1N2rq2/2nP3n/r2B4 w - - 0 1 legal: proof: b4 b5 c4 a5 h4 g5 f4 gxh4 f5 e5 a4 Ba6 Ra3 axb4 Rc3 b3 Rf3 b4 Rf4 Bb5 cxb5 exf4 Kf2 c5 Kf3 h5 e4 b2 g4 b3 e5 c4 b6 f6 e6 h3 b7 h2 a5 c3 g5 c2 e7 h4 Kg4 f3 a6 f2 a7 h3 g6 Na6 b8N Nc7 g7 Kf7 e8N Ne7 Nc3 b1N g8N b2 Nge2 Na3 Nb5 b1R Rg1 h1Q Nc6 h2 Nf4 Rh3 Ncd4 Re3 Kh5 Rb4 Be2 f1N Ng7 Qf3+ Kh6 Ne8 Nb3 Qb8 Bb2 c1R Bd4 Rcc4 Rg6 Nc2 Bc5 Qg4 Bf3 Qb7 Qe2 h1R+ Qh2 Rec3 Bd1 Rd4 Qh4 Re3 Qh5 Rd8 a8Q Qbf3 Qa1 Ra8 Qa2 Nh2 Qa5 Nc8 Ne7 Ra6 Nc6 Bd6 Nge6 Bb8 Nf8 Rd5 Ncd4 Ne7 Nde6 Rdd4 Be2 Rc1 Bd1 Ra1
1R1b1rn1/1qRp2p1/2RR2P1/k2n4/P1b1p2Q/1q1qb2R/n2N3r/K2N2BQ w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 c5 g5 cxd4 Bh3 Rh6 Bg4 hxg4 Nf3 Rh3 Ng1 Rh8 Kd2 b5 c4 e5 Kc2 d3+ Kb2 e4 a4 b3 f4 b4 h4 d2 h5 g3 c5 g2 c6 Qa5 f6 Kd8 f5 Kc7 g6 Kb6 c7 Qe5+ Nc3 Qd5 h6 Ka6 h7 Ka5 f7 Nc6 f6 Ba6 c8R Be7 Nf3 g1B f8R Be2 Kb1 b2 f7 Qc4 Qe1 d1N Rc7 Ne3 Ra2 Re8 Nd1 Nd5 Be3 Bg5 Ra1 Qb5 Qg3 Qb7 Ra2 Bf2 Nd2 Bb5 Qf3 Bfh4 Bg1 Be3 Ra1 Rc8 Ka2 Bd3 Rc1 b3+ Ka3 Ncb4 R1c6 b1Q Re8 b2 f8R Qc1 Ree6 Qb1 Red6 Na2 Rh2 Qc2 Qh1 b1Q Rd8 Bb5 Re8 Qc4 Rf8 Qbd3+ Kb2 Bhg5 Ka1 Qcb3 Rh5 Bc4 Rh6 Re8 Rh5 Re7 Rb8 Rf7 Rh6 Bd8 Rh5 Ne7 Rh6 Rhf8 h8Q Ng8 Rh3 Rf2 Qh4 Rh2
BR1RNB2/2Kp1P1n/4QQ2/3P1b1p/n1Qqb3/3qb3/q1nQp2k/r2rQ3 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Nc3 g5 Na2 gxh4 axb5 Na6 b6 Nb8 b5 Bg7 Nb4 cxb4 Ba3 Bh6 Bc1 Bf8 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kd5 Kf4 c4 e5 d4+ e3 g4 a5 b7 h5 g5 h3 b6 h2 c5 e4 c6 b3 c7 a4 g6 a3 g7 b2 Bg2 b1Q Nh3+ Kf5 f4 e2 Qe1 Kg4 f5 a2 f6 e3 Ba3 Qd3 Nf4 Na6 b8Q Rh6 b7 Nc5 Ne6 Na4 Qa7 Be7 b8Q Bc5 Qb2 Ba6 c8Q Qa5 Qab6 Bb5 Rf1 h1B Rb1 a1Q Qbd2 Ba6 Be4 Kh3 Nc7 Kh2 Ne8 Bc4+ Ke5 Be6 Qbd8 Qa2 Rb8 Qb4 Bd5 Bb6 Qc4 Be4 Qe7 Qbb2 Kd6 B6f5 Qf7 Ra7 Ba8 Rg6 d5 Rg1 Qe6 Qbd4 f7 Ra6 Rd8 Nf6 g8Q Nh7 Qg5 Bc5+ Kc7 Rh1 Rf3 Rf1 Qb1 Rd1 Qgf6 Ba7 Bf8 Bc5 Qdc3 e1N Qd2+ e2 Rg3 Nc2 Rg8 Rb6 Qbc1 Rb1 Qe1 Ra1 Qcd2 Qh3 Rg3 Ba7 Rb3 Qhd3 Rb2 Qg1 Rb5 Be3 Rbb8 Qg7 Qfe7 Qgc3 Q7f6 Qcd4
1r1n2q1/PBQ5/1p1BRbk1/3p2qq/3n1R2/Kp1P3r/QnR5/RN1b1b1R w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 Na3 axb4 Nb1 b3 Nc3 c6 Nd5 c5 Nb4 cxb4 f4 Kf7 g4 e5 a4 h5 c4 d6 c5 b6 a5 b2 g5 b1Q a6 e4 a7 e3 f6 e2 f5 h3 c6 h4 c7 h2 Ba3 h3 Qc1 Bb7 c8R Bf3 Bg2 Qa2 Rc2 Bg4 Bf3 Bg7 Bb7 Nc6 Nf3 Nge7 g6+ Ke8 Bb2 Nd4 Ba3 Nec6 f7+ Ke7 f8R Rb8 Re8+ Kf6 Re3 Qag8 Re4 Rh5 Re8 Bh8 g7 b3 Re6+ Kf7 f6 d5 Bd6 Kg6 f7+ Qf6 f8R Nd8 Qb2 Rh6 Qa2 Bh5 Kf2 e1N Ke3 Nd3 Rf7 Nb2 d3 Rh7 Nd2 Bd1 Nb1 Rh6 Kd2 Rh4 Re2 Qg5+ Kc3 Rh5 Kb4 Rh6 Rg1 h1Q Rf4 h2 Ka3 Rh3 Rge1 Qf3 Rh1 Qfh5 Re6+ Qf6 Rhf1 h1B Rg1+ Bg2 Rh1 Qf8 g8Q+ Bg7 Qh8 Bf1 Qg8 Qf7 Qf8 Qg8 Qe7 Bh8 Qc7 Bg7 Ree2 Qfg5 Re6+ Bf6
QNn4Q/3b1Q2/1RQ3rb/rp2qB1p/4PQ2/1Pr1R1qn/kb1q2p1/N6K w - - 0 1 illegal: No possible last move, all moves rejected
3qk3/4b1p1/1Q2p2r/np2q1rP/3BQQ2/Q1r1RnN1/1K2P1b1/1nQB1b1N w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 cxd5 h5 a4 hxg4 Nc3 f5 Ra3 f4 Nb1 Qd6 Rc3 Qd8 Rg3 fxg3 h4 c5 d4 b5 Kd2 e6 Kc2 c4 f4 b3+ Kb2 g2 f5 g3 h5 Nc6 f6 Qb6 a5 Nh6 d6 Ng8 a6 Bb7 a7 Nce7 d5 Bc6 Be3 Qc5 Qc1 Rh6 Nh3 g1N Nd2 g2 Nf2 Nf3 Rh3 g1R Bg2 Rc8 a8Q Bb7 Qa4 Nc6 Nf1 Be7 Qa3 Na5 Ng3 Rc6 Bd4 c3+ Kb1 c2+ Kb2 Qb6 Nfh1 Qd8 f7+ Kf8 d7 Rc3 d6 Nf6 Rh4 Nd5 Re4 Bc6 Re3 Bb7 Ka1 b2+ Ka2 b1B+ Kb2 Bc6 Bh3 Ba2 Bf5 Bc4 Bh7 Bd3 Bg6 Bf5 Bh7 Bh3 Bd3 Qe8 d8Q Bf1 Qb6 Qd8 d7 Rg2 Ne4 Rg5 Neg3 Nf6 Bc4 Ne4 Bb3 Ned2 Ba4 Ba8 Qb7 Nb1 Qe4 Qe8 d8Q Bb7 Qb6 Qd8 Qd2 c1Q+ Ka1 Rc4 Bd1 Rc3 Qdc2 Qd2 Qcc1 Qd3 Kb2 Qc7 Bf6 Qdd8 Bd4 Qe5 Qa2 Bc5 Qa3 Ke7 f8Q+ Kd7 Qh4 Be7 Qff4 Ke8 Qe4 Nh2 Qef4 Bbg2 Qhg4 Nf3 Qe4 Rh7 Qgf4 Rh6
RN1RQr1r/R2N2qk/3p4/bKrRp2n/7n/2BP1nbp/4P3/1Q3nRn w - - 0 2 legal: proof: g4 f5 b4 fxg4 b5 c5 Bg2 a6 Bf3 axb5 Bd5 b4 Bb3 c4 h3 cxb3 Na3 g5 Nb5 g3 Nd4 b6 Nf5 g4 Ne3 g2 Nc4 g3 Na3 Bb7 Nb1 Bd5 Nf3 Be6 Ng1 Bg4 hxg4 Ra6 Rh6 Ra7 Rh1 Ra8 a4 Kf7 f4 Kg6 c4 e5 a5 h5 a6 b5 a7 h4 d3 b2 Kd2 h3 f5+ Kh7 g5 b3 Kc3 b4+ Kd2 Na6 c5 Qc7 c6 Nf6 Nc3 b1R Na4 b2 Nf3 g1B Nd4 g2 Nb6 b3 Kc3 Bb4+ Kc4 d6 Nd7 Nh5 f6 Ba5 f7 Bf2 f8R g1N Kb5 Nf3 Rg1 Nc5 Bd2 Bg3 Rd8 Rc1 Bc3 b1N Ra3 Rc8 a8R b2 Qc2 Nbd2 Qb1 Qa7 c7 Nce4 Nc6 Nf1 Ncb8 Nh4 Ra1 Nf2 g6+ Kh6 g7 Nh1 g8R Kh7 Rg4 Rf8 Rd4 Rh8 Rg8 Rf8 c8Q Qc7 Rd5 Qb7+ Nb6 Qg7 N6d7 Rc2 Qe8 Rc1 Qc2 b1N Qa2 Nbd2 Qb1 Ndf3 Ra3 Bb4 R3a7 Ba5 Qe6 Rf7 Rd8 Rff8 Qe8 Rc2 Ba1 Rc7 Bc3 Rc5+
2n1R2N/1kb2bKQ/1r1Pn3/1Q2B1p1/1p1bprPb/BR1Bn3/B4Bq1/5r2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 Nc3 fxe4 Nce2 h4 Ng3 hxg3 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 b5 d4 g5 h4 b3 a4 b4 f4 e3 a5 g2 d6+ Kc6 d5+ Kb7 a6+ Ka7 h5 b2 f5 b1N h6 e6 f6 e2 d7 e1B h7 c4 f7 c3 Ba3 c2 Rh3 c1R Qd3 Ne7 Kf6 e5 Nf3 g1B Qb5 e4 Nh4 Nc3 Bd3 Nd1 Ng6 Ne3 Rg3 Qa5 d8Q Nbc6 Qd7+ Qc7 Ra2 Nd8 Rh2 Rg8 h8B Rb8 Ra2 Ka8 a7 Ne6 Bg7 Qc5 Nh8 Qc2 d6 Qg2 Rc2 Bb7 Rc8 Bd5 Re8 Nc8 Kg6 Be7 f8B Rb6 Kh7 Rc2 Bd4 Rc1 Bfg7 Rf8 Bge5 Rf4 Kg6 Bd8 Qh7 Bc7 Kh6 Nc5 Kg7 Kb7 Rh3 Bf7 a8B+ Ka7 Rf3 Bh4 Bd5 Rf1 B5c4 Kb7 Ba2 Nd1 Bf2 Ne3 Be1 Nc2 Rh3 Bd4 Bf2 Ne3 Bdb1 Nc2 Rb3 Ne3 Bd3 Ne6+
nRnQ2bq/2n1nr1b/1p1N2Q1/B2N2p1/1KNp2P1/3NRrN1/1P2r1k1/4b3 w - - 0 2 legal: proof: e4 c5 d4 cxd4 a4 h5 g3 f5 exf5 h4 a5 Qxa5+ Nc3 h3 Bg2 Qa2 Nb1 hxg2 Kd2 Kf7 h4 Kf6 c4 Ke5 f4+ Ke4 f6 a5 g4 d5 h5 g5 f5 e5 c5 d3 Kc3 a4 h6 d4+ Kb4 b6 h7 d2 f7 a3 f6 Ra7 Rh5 Nc6+ Kb5 Nge7 Qf1 d1B Bd2 Be6 Rh4 Bc2 Qc4 Nc8 Rh2 N6e7 Ne2 Kf3 c6 g1N c7 e4 Be1 e3 Qd3 Nh3 Qg6 Nf4 Nbc3 Nfd5 Ng3 e2 Rh3 Kg2 Rc1 Rg8 h8Q Rb7 Bd2 e1R Ra1 Re2 Rf1 Nb4 Nd5 Na6 Ba5 Qa1 Rf3 a2 Re3 Qh1 Kc4 a1N Rh6 Na7 c8N Nc7 Nd6 Nb3 Kb4 Na8 Rh7 Nac8 Rh4 Bh6 f8N Nc5 Nd7 Rf8 Ne5 Bg8 f7 Ne6 Nec4 Nec7 Rh3 Bg7 Rh6 Be5 Rh3 Re8 f8N Be4 Nd7 Rf8 Rh4 Rf3 Nc5 Bf5 Nd3 Qh3 Nf1 Bg3 Rh7 Bf2 Ng3 Qh5 Qhf6 Qh1 Rf7 Qh8 Rf8 Be4 Qgg7 Beh7 Qgg6 Na7 Rb8 Nac8 Qf8 Be1+ Ka4 Na6 Qd8 Rd7 Ka3 N6c7 Kb3 Nc6 Ka4 Rdf7 Kb3 N6e7 Ka3 Bf2 Kb4 Be1+
3K1q2/1QRN3q/2N1q1rP/3nNQp1/5p2/2B1NbP1/2pbqk1r/1nNRq3 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 f5 b5 axb5 h4 g3 h3 Bg2 hxg2 f6 exf6 Na3 f5 Nb1 f4 Kf2 Kd7 Kf3 Ke6 Ke4 c5 b4 a5 d4 g5 h4 a4 h5 c3 b6 f3 b7 f2 b5 f1Q b6 c2 Nc3 a3 Bd2 c1Q Qc2 c4 Nd5 c3 Ne3 Nd7 b8Q a2 b7 Qce1 Rd1 a1Q d5+ Kf6 d6 Qa7 Kd5 Ne5 d7 Nc4 Kc6 Bb4 Rc1 Qf8 Kc7 Ke5 d8N Kd4 Qf5 Ne7 h6 Na3 Rd1 Nb1 Rh2 f6 Nf7 Rg8 Ne5 Rg6 Rh1 Be6 Qc8 Qa6 b8N Bd5 Qb7 Qe6 Rc1 Bf3 Nbc6+ Kc5 Rd1 c2 Bc3 Rd8 Rh4 Rd2 Rd4 Qff2 Rd7 Qff1 Nd5 Qff2 e4 Qee2 Ne3 Qfe1 Nh3 g1Q Nf2 Nc8 Rh7 Nb6 Rf7 Qgf1 Rd7 Qff7 Kd8 Nd5 Rc7 Qh7 Nfd3+ Kd6 Qh3 f5 Nc1 Kc5 Qg4 Qff2 Qh3 f4 Qf5 Qg2 N5c4 Qh3 e5 Qef7 e6 Ba5 e7 Qf8+ e8N Bb4 Qf7 Qe6 Qf5 Ba5 Bg7 Bb4 N4e5 Bc3 Nb4+ Kd4 Bf6 Qd3 Bg7 Rh2 Bf6 Bd2 Bh8 Qff7 Nf6 Qde2 Nfd7 Qfg7 Qf6 Ke4 Nbc6 Qgg8+ Qf8 Qgg7 Qf7 Qf8+ Qe8 Ndc3 Nf7 Qe5 Qa7 Nd5 Qb7 Bh1 Bg7 Kf3 Bf6 Qa3 Qe6 Kf2 Qf5 Qe6 Bc3 Bf3 Nfe5 Qf8+
R4BB1/Bp1qr3/Nb1Nb1BQ/2p3Q1/B1r2pn1/2q3PK/2P1kn2/2qqq3 w - - 0 1 legal: proof: b4 g5 d4 a5 f4 axb4 a4 gxf4 g3 e5 dxe5 h5 Ra3 h4 Rf3 h3 Rf2 Bg7 Rg2 hxg2 Be3 Bh6 Bc1 Bf8 Kf2 Ke7 h4 Ke6 e4 d5 a5 f5 a6 f3 h5 d4 a7 c6 h6 f4 h7 b3 Nh3 b2 Nc3 b1Q Bc4+ Qd5 Nb5 d3 Nd6 d2 Ba3 Qc1 Ng5+ Kd7 Rh3 Nf6 Ne6 Na6 Nc7 Nc5 Qh1 d1Q Na6 Ke6 Rh2 Rg8 h8B Rg7 Rh6 Rb8 a8Q Re7 Qh4 Qb2 Qg5 Qc3 Bg7 Bd7 Rh8 Rc8 Bc1 Rc7 Be3 Rc8 Qh6 Rc7 Qd8 Bc8 Bf1 Nd3+ Kg1 f2+ Kh2 g1Q+ Kh3 Bd7 Ba7 Qdd4 Be2 Qge1 Bh5 Rc8 Bg6 Ng4 Rg8 Rf7 Qdg5 f1Q+ Kh4 Be7 Bf8 Bd8 Rh8 Qfg1 Kh3 Re7 Rg8 Bb6 Rh8 c5 Rg8 Ra8 Rh8 Bc8 Rg8 Kd7 e6+ Kc6 e5 Kd5 Bh7 Qge3 Rh8 Qec1 Bg8 Rh7 e7+ Be6 e8B Re7 Bb5 Qa4 Bc6+ Kd4 Be4 Ke3 Bg6 Bd7 e6 Ke2 Qh7 Bc8 Qg7 Qd7 Q7h6 Rg7 e7 Ndf2+ Kg2 Rf7 e8B Rh7 Qh3 Re7 Qhh6 Qf5 Bc6 Be6 Ba4 Rd8 Ne4 Rd4 Nd6 Nd3 Kh3 Rc4 B6h7 Qf7 Bg6 Ndf2+ Kg2 Nf6 B8h7 Kd2 Bg7 Rc7 Ra8 N6g4 Bf8 Ke2 Bg8 Qe8 Bb5 Re7 Ba4 Ne4 Kh3 Qc8 B8h7 Qd7 Bg8 Nef2+
2r2QRb/b2RN1B1/1Q3npP/1p1N2k1/b2K3q/b5N1/2N1qpP1/1rNn2b1 w - - 0 1 illegal: No proof kernel
4bnk1/1Nr5/n1r1PR1B/q2q1rpb/NrBQ1BP1/1Q6/3Kpp2/B1B3b1 w - - 0 1 illegal: No proof kernel
r4n2/k3pP1R/3q2p1/1KR1pQ2/1qRRP2n/qn3BNn/1Qb1N1R1/2r3b1 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 g4 h5 Bf4 hxg4 Bc7 f6 Be5 fxe5 Kd2 d5 Kd3 Kd7 c4 Kc7 e4 Kb7 b4 a5 f4 g3 h4 g6 c5 a4 c6+ Ka7 b6+ Ka6 h5 g2 b7 a3 b5+ Kb6 c7 a2 f5 Nh6 f6 Nd7 b8R+ Ka7 f7 Nf5 h6 Nh4 h7 Ba6 c8R Bh6 Qh5 Qa5 Rc5 Rc8 h8R Be3 Be2 Qa3+ Nc3 Nf8 Rd1 a1N Qf5 Nb3 Bf3 Rc6 Nge2 g1N Rc8 Nh3 Ng3 Bg1 Rh7 Qb4 Kc2 d3+ Kb2 d2 Rh2 d4 Nce2 d3 Rg2 Qa3+ Kc3 Rc7 Kc4 Rc6 Rc1 d1Q Rd8 d2 Rd4 Qe1 Rc2 d1Q Rc3 Bc8 Rc2 Bd7 b6+ Ka6 b7 Ka7 Kb5 Qd3+ Rdc4 Qd6 Rd4 Rc7+ Kc4 Ba4 b8Q+ Ka6 Qb5+ Ka7 Qb4 Na1 Rc1 Bc2 Qb2 Nb3 Kb5 Bb1 Rcd5 Rc3 Rc5 Qd2 Rb4 Rc2 Rd1 Rc1 Rbc4 Qc3 Rd2 Bc2 Rdd4 Qcb4+
q5Q1/rNbr4/1BkpK2R/3p1Q2/4Qn1r/2qpQP1N/Q1bP1rB1/n4n2 w - - 0 1 illegal: No proof kernel
1bR4q/Q4P1p/4K1N1/n1NbNBpP/1k1B1qrr/2p5/b2Q1n2/Nr2N1r1 w - - 0 1 illegal: No possible last move, all moves rejected
8/nk1r1B2/1Np5/1rbb1q2/N1Q1r1pK/N3nN1R/qpb2NPP/QR3r2 w - - 0 1 illegal: No proof kernel
1r2k2B/R2Rq1R1/Bpb1r2n/1NbP1QpK/5q2/6p1/1PRQ1bbR/4n1n1 w - - 0 1 illegal: No proof kernel
R3KQ2/QN1Qq1pr/2b1n2n/3QNB2/1q1pRP2/4qp2/rQ4Pk/q3b1r1 w - - 0 1 illegal: No proof kernel
3N1b2/3bQKbp/2R1q1n1/2n3N1/1b1bpNk1/1rPQ1R2/1bp1N1NP/2r3B1 w - - 0 1 illegal: No proof kernel
2R1q2r/K1b2nn1/RR1nRBB1/1Np1Q2r/5R2/2np3p/Q1PPr2r/1b1k4 w - - 1 2 legal: proof: f4 a5 h4 g5 a4 gxh4 b4 e5 b5 exf4 Nc3 b6 Nd5 Bg7 Nb4 axb4 a5 Bh6 axb6 Bf8 Kf2 Ke7 e4 Kd6 g4 Ke5 g5 d5 g6 c5 b7 f5 b6 h5 g7 d4 Be2 d3 Ra2 b3 Ra1 b2 Ra2 b1N Ba3 f3 Ke3 f2 Bg4 f1N+ Kf2 Kf4 e5 h3 e6 h2 e7 h4 e8R h3 Bf3 Na6 b8R Bd6 b7 Nc7 Re7 Ne8 Rf7 Rh5 Be4 Nh6 g8Q Be6 Rc8 Ne3 b8R Nc3 Qe2 Bc7 Nf3 Nc4 Re1 h1R Rb6 Ng7 Bb2 Nd6 Raa6 Ba2 Nd4 Bb1 Nb5 Qe8 Rf6 Rb8 Qa2 Nhf7 Rf1 Ra8 Re6 Rb8 Qe3+ Kg4 Qd4 f4 Qe5 f3 Ke3 f2 Bg6 Rh2 Qed5 Ne2 Bf6 Nc3 Qe5 Ra8 Re1 f1R Rd1 Rff5 Rf1 Rfg5 Rf4+ Kg3 Rb7 Kg2 Rbb6 Kg1 Kf3 Kf1 Ke3+ Ke1 Kf3+ Kd1 Ke3 Na4 Kf3 Ndf5 Ke4 Rgg2 Kd5 Re2 Kc4 N5d6+ Kd5 Qf8 Kc6 Qh8 Bd8 Nc3 Bf6 Nde4 Kb7 Qe8 Nd4 Rb8+ Ka7 Ned6 Rc6 Rb4 Nb5 Rc4 Rcb6 Rb4 Rf2 Rbh4 Rf5 Rh8 Rf4 R4h5
1RBB1NB1/p2QKn2/P5r1/q1bp4/1nnP3R/k2q4/r1QpB1qn/n3B3 w - - 0 1 legal: proof: d4 e5 c4 b5 g4 bxc4 Nd2 f5 Ne4 fxg4 Nc5 e4 h3 g5 Qd2 g3 Qa5 g4 Qa3 g2 Qc3 g3 Qb3 Bb7 Nd3 exd3 Qa4 Bf3 Qd1 Bg4 hxg4 Be7 Rb1 Bc5 Ra1 Bf8 Kd2 Ke7 Ke3 Kd6 Ke4 c5 Kf5 h5 b4 h4 e4 h3 a4 d2 f4 c3 e5+ Kd5 b5 h2 a5 c4 b6 d6 a6 c2 g5 c3 g6 Nc6 e6 Nb4 e7 Nh6+ Kf6 Nf7 b7 Qa5 Ne2 Kc4 e8B Kb3 b8B g1N g7 g2 g8B Nf3 f5 g1Q Bc7 Qe3 Bd7 Qd3 Nf4 Re8 Bb6 Rh6+ Ng6 Re2 Rb1+ Ka2 Bb2 c1N Bd8 Nb3 Bc8 Na1 Qc2 Rf2 Be2 Rg2 Rhe1 h1Q Ke6 Qg1 f6 Nh2 Rf1 Be7 Nf8 Rhg6 Rf4 Rf2 Rh4 Qg2 Rf1 Nd5 Rb1 Nb6 Qc1 Nc4 Ba3 Rf1 Rb8 Rf2 Bb4 Kb3 Bc5+ Ka2 Bcb6 Kb3 Qc2+ Ka3 Kd7 d5 Bbc7 Bc5 Bg3 Rf1 Ke8 Rb1 Be1 Rb2 Kd7 Nh6 f7 Ra2 Qd1 c2 Qb1 c1N Qc2 Nf5 Ke8 Nfd6+ Ke7 Qgf3 Nh7 Qh1 f8Q Qg2 Qf4 Nf7+ Qd6 Qb3 Nf8 Nd3 Bf1 Nb4 Be2 Bb6 Qe6 Qd3 Qd7 Bc5+
4kn2/RN2pqBR/pB5K/Qr1rb1QB/1brB1n2/1p4B1/2bPPpn1/8 w - - 0 1 illegal: No proof kernel
k2q4/2QP4/1p1n1pK1/2R1Q3/B2p4/n1NQ1r1p/1qNQqr1P/1b1rRQb1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 d4 gxf4 d6 e5 d5 Nf6 Be3 Ng8 Bd4 exd4 Kd2 Kd7 Kd3 h5 Ke4 c5 Kf5 f3 g4 b6 e4 f2 a4 f6 g5 h4 g6 b3 a5 b2 a6 h3 e5 c4 g7 c3 a7 c2 Nf3 c1Q Ra5 Rh5+ Kg6 Nc6 Qd2 Nb4 Nc3 b1R Rc5 Nc2 Ne1 Nh6 g8Q Rf5 Qh7+ Nf7 Bd3 Na3 Nc2 Rf4 Re1 f1Q Be2 Qb2 Bd1 Qe2 e6+ Ke8 e7 Kd7 Qc1 Bh6 Qd2 Rb8 a8Q Rf3 Qa5 Ra8 Qa6 Be3 Qad3 Ra5 Qh4 Rc1 Qf4 Bg1 Qe5 Bb7 Qef4 Bc6 e8Q+ Kc8 d7+ Kb7 d6 Ka8 Qee5 Bd5 Qff5 Ba2 Qff4 Bb1 Qff5 Qb8 d8Q Rf2 d7 Nd6 Qc7 Qd8 Na1 Rb5 Ba4 Rb3 Nc2 Rd1 Nd5 Qe4 Qf1 Rbf3 Nc3 Qe3 Q5d3 Qe2
2B2bn1/2Rq1p1R/QN1p4/n4b1R/1K1PpqRP/1r1Q2pb/1k3rR1/6Bn w - - 0 1 illegal: No proof kernel
1q2n1RR/2r1Rbb1/p1Qp2B1/1RB3p1/KQ6/1npr1R2/2Pbn1P1/1k2N1q1 w - - 0 2 legal: proof: e4 e5 h4 Qxh4 d4 b5 a4 Qh2 axb5 exd4 e5 f6 Nc3 f5 Ne4 fxe4 Kd2 Ke7 b4 Ke6 f4 Kd5 f5 c5 f6 h5 f7 g5 e6 e3+ Kd3 h4 b6 h3 b5 e2 e7 e1B e8Q a6 b7 c4+ Ke2 d3+ Ke3 d2 b6 Bg7 f8R Nf6 Qd8 Ne8 Qf6 Rh7 Nf3 Nc6 b8R Nd4 b7 Nb3 Bd3 c3 Rb1 Kc5 Qc6+ Kb4 Bg6 Qf4+ Kd3 h2 Rf1 h1N Rf7 Ng3 Re7 Ne2 Rb2 Ka3 Rf2 Qf6 Kc4 Qd6 Rb1+ Ka2 Ba3 Ra7 Bc5 Rh3 Kb4 Qe5 Qc1 d1Q Ka4 Bd2 Ne1 Rd3 Rf3 d6 Ra8 Be6 b8R Rc7 Rb5 Bf7 Rc8 Nf6 Rh8 Ne8 Rb8 Qh2 Ra8 Qg1 Rc8 Nbd4 Rb5 Nb3 Qa3+ Kb1 Qb4 Qc1 Ba7 Qb6 Rg8 Qb8 Bc5 Bf4 Rd8 Qe3 Rh8 Qg1 Rg8 Bd2 Rh8 Nf6 Rdg8 Ne8
5N2/RbR1ppB1/1Rr2P1Q/1nq1b1K1/1p2r3/bk1p3Q/b3BP2/bnR2R2 w - - 0 1 illegal: No proof kernel
r1K2kN1/2B1N2r/2pqp3/1P2Prr1/p2RB2Q/pb1r2n1/2nb1Q2/3N1N1N w - - 0 1 legal: proof: c4 b5 b4 h5 a4 bxa4 g4 hxg4 Nh3 f5 Ng1 d5 Ra3 f4 Rg3 fxg3 cxd5 Be6 Nh3 Bf5 Ng1 Bc8 h4 a5 f4 g5 d4 g2 Kd2 g3 Kc3 a3 Kc4 e6 Kb5 g4 e4 a4 d6 Qg5+ f5 c6+ Kb6 Ba6 Kc7 Qg7+ d7+ Ke7 d8Q+ Kf7 d5 Nd7 b5 Ne7 d6 Qf6 h5 Bh6 Qd4 Bg7 h6 Rh7 Bd3 Nf8 d7 Ng8 Ne2 g1R Nd2 g2 Rh4 g3 Nf1 Qe7 f6 Bc8 Bf4 Ng6 Nc3 Ne5 Nd1 Nc4 Qf2 Ne3 Bd6 Bf8 e5 Nc2 Be4 Rh1 Rg4 g1R Rf4 g2 Rg4 Rg7 h7 Nh6 h8N+ Kg8 Rf4 Nf5 Ng6 Rh5 Nh4 Ng3 Nf5 Rgh7 Rh4 Rh1 Rf4 g1R f7+ Kh8 Rh4 Rg5 Rg4 R1h5 Rh4 Rh1 Rf4 R1h3 Rg4 Ne2 N5g3 Kg7 Nh1 Rd3 Rh4 Ng3 Rg4 Qf6 Qe7 Qf5 d8N Bd7 Kb7 Qf3 Bc7 Be8 Rf4 Rf5 Qh4 Bb4 f8N Bg6 Nf7 Bd2 Nh6 Rhg5 Ng8 Qe3 Rg4 Qd4 Rf4 Bh5 Ng6 Qd6 N6e7 Be2 Bg2 Bf3 Rd4 Bd5 Bf3 Kf8 Be4 Ra5 Kb8 Bb3 Kc8 Ra8+
1r1r4/p1b4Q/1BR1R1n1/2K1RN2/bp2nk1q/PPp2n2/N2p2Rn/4QnR1 w - - 1 2 legal: proof: h4 g5 e4 f5 exf5 gxh4 Be2 c6 Bd3 Na6 Bf1 Nb8 d4 Qb6 d5 cxd5 Be3 Qc7 Bc1 Qd8 c4 Qc7 c5 Qd8 Bc4 dxc4 Kd2 Kf7 Kc3 Kf6 Kd4 b5 f4 d5 g4 e5+ Ke3 h5 a3 h3 b3 h2 c6 b4 c7 d4+ Ke4 d3 Ne2 h4 Qe1 h3 Nbc3 Nc6 Ng3 Bd6 Kd5 e4 Be3 d2 Bb6 e3 Rg1 h1N Na2 e2 Rg2 Bd7 c8R Bc7 Kc5 c3 Rb1 h2 g5+ Kf7 f6 Ke6 f7 Nge7 f8R Nf2 f5+ Ke5 f6 h1N g6 Nd4 f7 Ba4 g7 Ng6 g8R Rb8 Nf5 Ng3 Re8+ Kf4 f8Q Nf3 Re5 Qh4 Qe7 Nh2 Rge8 Ngf1 Qh7 Rg8 R8e6 Rd8 Qc1 e1N Ra1 Nef3 Qe1 Rf8 Rb1 Bd8 Rcc6 Bc7 Rc1 Rfd8 Qe2 Ng3 Rcg1 Ngf1 Qe1 Ne4+
qQ1K4/1n6/PQ2b1k1/pnrB3p/p2R1r2/1NQ1N2P/qb1RQp2/b4b1Q w - - 0 1 illegal: No proof kernel
Q1n3q1/Q2bb3/r3p1B1/Q2pQ2n/RP6/1p2Pk2/1N1Qprnq/Kn2R1B1 w - - 0 1 illegal: No proof kernel
B7/p2rQ1Kn/4R3/3rnQ1P/P1Q3bB/bq1RQ1pp/pq2NQ2/1nn4k w - - 0 1 illegal: No proof kernel
b1QRnB2/PNb1Q3/2q3Q1/K2q2pB/2pnQ2p/2PR4/Q2p1p1k/rrn5 w - - 0 1 illegal: No possible last move
Nq5b/R2p1PQ1/Qnq1rrR1/pPk3N1/2rp1RK1/R1nQ4/8/3B4 w - - 0 1 legal: proof: d4 b5 e4 c5 g4 cxd4 a4 h5 gxh5 f5 exf5 e5 f4 e4 axb5 a5 Bd2 Ba6 bxa6 e3 f6 Qxf6 f5 Qd8 Bb4 Qb6 Be7 Qc7 Bd8 Qxd8 Ke2 Ke7 Kf3 Kd6 c4 g5 b4 e2 h4 e1R b5 Ne7 h6 Qe8 c5+ Kd5 a7 Rg8 f6 Qd8 c6 Qc8 c7 Re4 h7 Qb7 h8Q Nf5 c8Q Rg7 h5 Na6 f7 Re7 h6 Kd6+ Kg4 Nc7 h7 Ng3 Rh4 Nd5 Nh3 Nb6 Ra3 Qb8 Qa6 Re6 Be2 Kc5 Nc3 Ne4 Qd3 Rgg6 Qg7 Rgf6 Nd5 Nc3 h8R Bd6 Rg8 Be5 Kh5 g4 Bd1 g3 Rf4 g2 Nc7 g1Q Ng5 Qh1+ Kg4 Qd8 Qe2 Qe4 Qd3 Rc8 a8R Qc6 Ra7 Qe8 Na8 Rc7 Qh8 Qb8 Qhh7 Rf5 Rg6 Bh8 Qg8 Rff6 Qg7 Qcb7 Qg3 Kd5 Rh6 Rc4 Qd3 Kc5 Rg6 Qc6
1R2q3/2P3N1/b1pBR1RQ/K1qb4/1r3Qq1/3k3P/1nqn3Q/1qRrB3 w - - 0 1 legal: proof: e4 f5 exf5 a5 b4 h5 g4 hxg4 Ba3 e6 Bc1 Bc5 a4 b5 axb5 a4 Nh3 Be3 Ng1 Bb6 c4 c6 c5 Ba5 bxa5 Ra7 b6 Ra6 Nc3 Ra8 Nb5 Qh4 Bg2 cxb5 c6 Qg5 c7 Qd8 Bc6 dxc6 d4 Ke7 Kd2 Kf6 Kc3 g5 Kb4 g3 f4 g4 b7 g2 h3 a3 a6 a2 d5 g3 a7 e5 d6 e4 d7 e3 Qc2 e2 Ka5 e1Q+ Qd2 b4 Qe3 b3+ Qd2 b2 Rb1 Qd1 Qe3 Qc2 Ne2 g1Q Nd4 g2 Bd2 Na6 b8R Rh4 Re1 b1B Ne6 Qe8 d8R Nc5 Rd6 Nd3 Ng7+ Be6 Re2 Nb2 Be1 Qf2 Qg3 g1Q Qh2 Qg4 Rg1 Qe3 Rd1 Bd5 Rc1 Qcb3 Rgg2 Bd3 Rg3 Qf2 Re7 Ba6 Re6+ Kf7 f6 Kg6 f7+ Nf6 f8Q Qbc2 Qb4 a1Q+ Qa4 Qab1 f5+ Kg5 Rg1 Ne4 f6 Qf5 f7 Nd2 f8B Qf2 Bd6 Qfc5+ Rb5 Rd8 a8Q Qg3 Qb8 Rb4 Qa7 Qg4 Rg3 Qd4 Rb8 Qe5 Qag1 Kf4 Qf1+ Ke4 Qf6 Kd4 Qh6 Q5h5 Rg1 Kd3 Rg2 Qf4 Rg5 Qfg4 Rgg6 Qhf5 Rgf6 Qf2 Rg6 Qfc5+ Rb5 Bc4 Qf2 Ne4 Bd2 Rb3 Qh2 Kd4 B6f4 Rd5 Be1 Rd8 Qa3 Rb4 Qf3 Ba2 Qff2+ Kc4 Qe3 Rd1 Bd6 Nd2 Qee5 Kd3 Qef4 Qd4 Rb7 Bd5 Rb8 Qdc5+
1R2BNbN/6NK/4N3/q3nB2/q1pq2B1/r3nP1P/rq5q/3knQQ1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 f5 e4 fxe4 a3 g6 Bc4 Bg7 Ba6 Bd4 Bf1 b5 a4 Bb6 axb5 a4 Ra2 Ba5 Ra3 Bf5 Ra1 Bc8 bxa5 g5 f3 g4 Bb2 g3 Bc4 Ra6 Kf1 Nd7 Nc3 Nc5 Qe2 Ra8 Rd1 Bf5 Nb1 Qd6 Bc1 Bg4 Re1 Nd7 Qd1 Kf8 Re2 Nb8 Ke1 Bc8 Rf2 Qd8 Bf1 Ke8 Bb2 gxf2+ Ke2 h6 g4 Bd7 g5 Rh7 g6 Bc8 Bf6 Rh8 Bg5 hxg5 Ke3 Kd7 d4 Kd6 a6 e5 h3 c5 a7 g4 g7 a3 b6 g3 b7 g2 Nc3 c4 Nge2 g1Q Nb5+ Kd7 d6 Kc6 d7 Kd5 Nd6 a2 Ng3 a1Q Bd3 Qg2 Nh5 f1Q Nf7 Nf6 g8B Qa4 Ng7 Nc6 b8Q Qh2 Qbb1 Qfg2 Qg1 Qb2 Qbf1 Qdb6 d8N Be6 Bh7 Rf8 Nh8 Bf7 Nde6 Rg8 Nh5 Rg2 Nf8 Rc2 Bf5 Rc3 Bg4 Ra3 Ng7 Ra2 Bc2 Qba5 Qgf2 Qc5 Ke2 e3 Rg1 e4 Rg3 Rb8 a8B Rb3 Rg2 Qca7 Q2g1 Rba3 Bb7 Qc5 Bbc8 Qca7 Bcd7 Ne5 Be8 Q7d7 Ke1 e2 Kf2 e1N Ke2 N5d3 Ke3 Ne5+ Bd3 Qd6 Rg3 Qdd7 Kf4 e3 Kg5 e2 Kh6 Qd6 Bdf5 Qdd7 Bh5 Nfg4+ Kh7 Ne3 Bhg4 N1d3 Nfe6 e1Q Nf8 Qea5 Rg2 Ne1 Rc2 Kc6 d5+ Kc5 d6 Kb4 Rf2 Qda7 d7 Kc3 d8N Qd4 Nde6 Kb3 Rd2 Kc3 Rd3+ Kc2 Rb3+ Kd1 Rb8 Bg8+
8/b3rRNk/Kb1qr1p1/2BPR3/4bPr1/2R1n2n/Q1Qp3q/NR2N3 w - - 0 1 legal: proof: d4 h5 c4 a5 g4 b5 gxh5 f5 e4 d5 a4 dxc4 Bd3 cxd3 exf5 Ra6 axb5 Ra8 b4 axb4 Kd2 Kf7 f4 c5 h4 e5 h6 g6 f6 e4 h5 c4 b6 b3 Kc3 b2 d5 e3 b7 e2 h7 e1R h6 Nd7 b8R Re6 Nd2 b1Q Rh5 Bc5 Ra3 Ne5 Qc2 Nf3 Nb3 Ne7 Na1 Ba7 Be3 Ng5 Bc5 Qa2 Kb4 c3 Kb5 Qd6 Nf3 Nh3 Re5 Nf5 Ne1 Ne3 Ka5 Re7 Rb1 Bf5 Kb5 Kf8 f7 Rae8 Ka5 Bb6+ Ka6 Qb2 Rb3 Be4 Ra3 Re6 Rb3 R8e7 Ra3 Rg8 h8Q Qa2 Qf6 Rh8 h7 Qb2 Qg5 Kg7 f8N Qa2 Qgg2 Qb2 Qb3 c2 Qa2 c1B Rc3 Qd2 Qe2 Kh6 Qd1 Qh2 Qdc2 d2 Rb5 Ba3 Rb1 Rg8 h8R+ Kg7 Rh6 Rh8 Rh7+ Kg8 Rf7 Rh4 Nd7 Rg4 Nf6+ Kh8 Ne8 Ba7+ Bb6 Bc5 Ng7 Kh7 Kb5 Bb4 Bc5 Bb6 Ka6 B4a5 Qca4 Ba7+ Qc6 B5b6 Qca4 Rd7 Q4c2 Rde7
3b4/1Q2n2K/QN2R2P/3nn1p1/N2Pp2b/6n1/1rR1NR1B/r1q1R1rk w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 a5 e4 h5 b4 hxg4 a4 f5 bxa5 fxe4 a6 b4 Bh3 Bd7 Bg2 Bb5 axb5 b3 b6 Kd7 Bf1 Ke8 Bb5+ Kf7 Be8+ Kxe8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 h4 e3 d4 e5+ Ke4 g5 f4 e2 d6 e1B h5 b2 d7 g3 b7 c4 h6 c3 f5 g2 a7 c2 Ra2 Qc7 d8R Ne7 Re8 Bh4 Qd3 Nbc6 Ne2 g1R Nbc3 b1N Bf4 c1N b8Q Qc8 Na4 Nc3+ Ke3 Rg8 Qa6 Ncd5+ Ke4 Rh8 Qbb5 Rb8 Qb1 Rb2 a8N Qc7 N8b6 Rh7 Nec3 Ne2 Bh2 Rg7 Qb7 Rg6 Qd3 Bg7 Qda6 Ng3+ Kf3 e4+ Kg4 Bh8 Ne2 Rg8 Qc4 Rf8 Qca6 Ra1 Re1 Qf4+ Kh3 Qc1 Kg4 Ne5+ Kh3 Kf7 f6 Kg6 f7 Kf5 Nc4 Rb5 Ncb6 Bf6 Rd2 Rb2 Rc2 N7g6 Re6 Nge7 Rd1 Rc8 f8R Rc3 Rf7 Rf3 Re1 Rf1 Nec3 Kf4 Ne2+ Kf3 Rf8 N5c6 Rf7 Kf2 Kg4 Kg2 Rf8 Kh1 Rf7 Ngf5 Kh5 Ne5 Rf8 Rg1 Rf7 N7c6 Rf8 Bd8 Rff6 Nd3 Kg6 Nce7+ Kh7 Ng3 Rf2 Ne5
Q2BQ1r1/4q2q/R1n1r3/2NP4/2Q1K2k/B1QrNrpb/pn2P3/2N4b w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kd3 Ke7 h4 Kf6 b4 f1Q h5 a5 f5 Kg5 f6 c5 f7 g3 f8Q c4+ Ke4 c3 d4+ Kg4 d6 g5 d5 f2 h6 a4 d7 a3 h7 g2 b6 c2 b7 Nh6 b5 Rg8 h8Q Nf5 b6 Ne3 Nc3 Nc6 b8N Nc4 b7 Nb2 Nh3 g1R Nf4 Qh3 Ng2 f1B Na6 Qe7+ Qe5 Kh5 Ne3 Kh4 b8Q g4 d8B Bg2+ Qf3 g3 Nc5 Rg6 Qd4 Rd1 Na2 Rd3 Qc4 Qh2 Qb7 Bch3 Rf1 Rc8 Qa8 Bh1 Rf2 Nd1 Bb2 c1R Rf1 Rcc3 Nc1 Qf6 Qe8 a2 Rb1 Qg5 Ba3 Qf6 Rb7 Nb2 Re7 Rb8 Re6 Qe7 Qg2 Rcb3 Rf6 Rc8 Nd1 Rf3 Ne3 Rd3 Qf1 Ne5 Ra6 Nc6+ Re6 Rb8 Qe1 Rc8 Bb6 Rd8 Qec3 Rb8 Qf7 Rbg8 Bd8 Kh5 N5b3 B3g2 Q4b4 Kg5 Qf8 Qh7 Qe8 Bh3 Nc5 Kh4 Qbc4 Rxe6#
q5B1/qb1Prn2/4QBr1/2b2p1Q/4Rq2/1N2pP2/k1b1NB2/1N3rKB w - - 0 1 legal: proof: e4 d5 exd5 c5 a4 h5 g4 b5 g5 f5 axb5 Nd7 b4 Ndf6 gxf6 cxb4 Ra3 Bb7 Rg3 Bc8 Rg4 hxg4 c4 Kd7 d4 Kd6 h4 g5 b6 a5 b7 e5 b8Q+ Qc7 f7 b3 c5+ Kd7 c6+ Kd6 f3 b2 Kf2 e4 h5 a4 h6 a3 h7 a2 Be3 a1Q Rh4 Nf6 Bg2 Ng8 Qbb3 Bb7 Bh1 Ra6 Ne2 g3+ Kg1 g2 Qf1 g4 Bf2 Nh6 Qb6 Be7 f8N Nf7 Nd7 Re8 h8Q Bf8 Nc5 Re7 Nb3 e3 Na3 b1B Qh5 Bc2 Nb1 Qd7 c7+ Qc6 c8B Qa5 Kh2 g3+ Kh3 g1Q Be6 g2 Re4 Nh8 Bg8 Nf7 Bh4 Qf2 Kh2 Qg3+ Kg1 Qf4 Bf2 Qa4 Qb4+ Qc5 Qc4 Qa7 Qc8 Qe8 Qc4 Qea8 Qc8 Rb6 Qe6+ Kc7 d6+ Kc6 d7+ Kb5 d8B Ka4 Re5 Rd6 d5 Rb6 d6 Ra6 Nbc3+ Ka3 Nb1+ Ka2 d7 Rb6 Re4 Rd6 Qd5 Rg6 Qc6 Re5 Bg5 Bc5 Bf6 Re7 Qe6 gxf1R+
N1Q1b1k1/1N5R/2pP1PbR/1rKR4/3B1b2/p4q2/Nr2r2Q/R1br2n1 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 d4 a5 b4 a4 h4 gxh4 Be2 Nc6 Bd3 Na5 bxa5 exd3 Kd2 Kf7 Kc3 e5 Kc4 h5 f4 h3 g4 d2 f5 h2 d6 a3 d7 e4 d5 e3 g5 h4 d6 h3 f6 e2 b6 e1B b7 Rb8 a6 Ne7 a7 Ng6 a8N Rh5 Bb2 Bh6 Qc2 d1R Kc5 Bd2 Ne2 Kg8 Bd4 Bf4 Nec3 Nh4 Ne4 Nf3 Nbc3 Ng1 Na2 c6 Qb2 Qe8 d8Q Bd7 Qc8 Re1 Qf2 Re2 Qg3 Bc1 Qe5 Bf4 g6 Bc1 g7 Bhf4 Nd2 Rg5 Nb3 Rgg2 Na5 Rb2 Qc7 Qh5 Qd8+ Be8 Qc8 Qf3 Qe2 Kh7 g8R Rf2 Qd2 Re2 Rg7+ Kh8 Rh7+ Kg8 Qd8 Rc8 b8R Rc7 Rb6 Rb7 Qc8 Rb8 Rb3 Rb6 Rd3 R6b5+ Kc4 Re4 Rh4 Ne2 Nb7 Ree5 Bc5 Re7 Rf1 h1R Rh7 h2 Rd5 Re5 Rf2 Rd1 Bd4 Ng1 Re2 Re7 Ree5 Re6 Reh5 Re5 Qf2 Ree2 Rh3 h1B Qg2+ Qg3 Qh2 Be4 R3h5 Qf3 R5h6 R5b3 Kc5 Bg6 Re7 Rb4 Reh7 Rb5+
rB2Q1n1/B5QR/PK1r1Bp1/4pQ2/b3q2n/1n3P2/1pN3kr/Q2N3b w - - 0 1 legal: proof: b4 c5 e4 cxb4 c4 a5 a4 d5 cxd5 f5 exf5 h5 g3 e6 Be2 Bd6 Bg4 hxg4 Ra2 Bc7 Rc2 Bf4 Rc4 b3 Rb4 axb4 gxf4 Qd7 Ke2 Qe7 Ke1 Qd8 Ke2 Ke7 Kd3 Kd6 Kc4 g6 Kb5 e5 h4 b6 d4 g3 a5 g2 a6 b2 h5 b3 f3 Be6 h6 Qe7 f6 Qb7 h7 Nd7 f5 Qc7 f7 Qb7 f6 Nc5 Nc3 b1R Be3 b2 Nge2 g1N f8B+ Kd7 d6 Nb3 f7 Qe4 d5 Bh3 Qe1 Rd1 Nd4 b1B Nc2 Bg2 Bc5 Rd4 Nd1 Ne2 Bg7 Rd3 f8Q Ng3 Bf6 Nf5 Qa5 Rd4 Qa1 Nh4 Rh2 Bh1 Qf7+ Kc8 d7+ Kc7 Qe8 Rd3 Be3 Kd6 d8B Rd4 Qf8+ Kd7 d6 Ke6 d7 Kf5 Qf7 Rd6 Bc7 Ba2 Bd4 Kf4 d8Q Kg3 Bb8 Bb1 Rh3+ Kg2 Qdd7 Ba2 Qf5 Bb1 Qg7 Ba2 Kc4 b5+ Kb4 Qe3 Bda7 Qe4+ Ka3 b4+ Ka4 Nd4 Ka5 b3 Qe6 b2 Qf5 Rd7 Kb6 Bb3 Qf4 Ba4 Qf5 Ne7 Kc5 Nb3+ Kb6 Rhd8 h8Q Rd2 Qe8 Ng8 Bg5 Kg1 Bf6 Rh2 Qfd7 Kg2 Qd3 Nf5 Rh7 Nh4 Qdd7 Qc4 Qde6 Qe4 Qf5 Rd6+
1B1KNb2/8/q1R3qR/r3PQ1b/1r2Q2R/1P2n2n/3Nr1Nk/2r1nrRq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 e4 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 h4 a5 b6 f5 Kb5 c5 e5 g5 b7 a4 b3 g4 h5 c4 h6 a3 h7 c3 d6 a2 d7 c2 Qe1 Nc6 b8N Qe8 Kb6 Nb4 Kc7 Qg6 d8Q Nh6 Na3 Nd3 Nb1 Ra5 Qe2 Ne1 Nf3 g1R Na6 g2 d4+ Kg3 d5 f4 d6 Nf5 d7 Ne3 Nh4 f3 Nd2 f2 Ba3 f1R Qg5 c1R+ Kd8 Rc4 Qf5 Rb4 Rb1 a1Q Nc7 Bb7 Ne8 Bf3 Rh2 Rh1 Rd1 g1N Ng2 Nh3 Rc1 Rg8 h8R Qa6 Rc6 Qb1 Qf7 Qg6 Rh6 Rg7 Qd3 Bd1 Qfc4 Rgf7 Qcd4 R7f2 Qf5 Re2 Qd5 Nf4 R2h4 Nh3 Qde4 Kh2 Qh5 g3 Qhf5 Rc4 Bd6 Rb4 Bb8 Rhg1 Kc7 Rh1 d8R Rhg1 Nf4 g2 Rd5 Rh1 Kd8 g1Q Rd7 Q1g2 Rg7 Rhg1 Rg8 Qh1 Rg7 Ref2 Ng2 Bh5 Rg8 Re2 Qg5 Rf6 Bc7 Qh7 Nf4 Nd3 Bb8 Rc1 Qgg6 Qg7 Qh7 Qf7 Rg1 Ne1 Ng2 Rf1 Qhf5 Qg6
8/R1B1Q2n/2qBqnPK/2BkN3/2b2Q1b/1R5P/Rr1nr1R1/2r1nn1b w - - 0 1 legal: proof: g4 g5 a4 h5 f4 d5 c4 b5 axb5 gxf4 Bg2 e6 g5 e5 Bf3 Bh3 cxd5 Bc8 Na3 e4 Nc2 exf3 Ne3 Bb4 Ng4 hxg4 Qa4 Ba3 Qd1 Bf8 Kf2 Ke7 e4 Kd6 b4 c5 d4 a5 g6 f5 h3 g3+ Kf1 g2+ Kf2 a4 b6 a3 b7 a2 b5 c4 b6 c3 Qf1 c2 Bd2 c1R Rh2 Be7 Be3 Nd7 b8R Qc7 b7 Nf8 Qc4 Nh7 e5+ Kd7 d6 Ngf6 d5 Re8 Bd4 Qc6 Bc5 Ra4 Ra8 Rb4 b8B Bb7 Ra7 Rb5 Rb1 a1N Rb3 Nc2 Bc7 Ne1 e6+ Kc8 Qf1 Bd8 e7 Kd7 Ne2 g1N Nd4 Rb6 Qc4 Rb4 Rg2 Rb5 Kf1 f2 Qb4 Ngf3 Ke2 Nd2 Nf3 f1N Ne5+ Kc8 Kf2 f3 Qf4 Ba8 Ra2 Kb7 d7 Qe6 d6 Rb4 Nc4 Kc6 Ne5+ Kd5 Ra7 Rbc4 Bb8 R4c2 Bc7 Rb2 Bb8 Ng3 Ke3 f2 Ra2 f1B Ra7 Rf8 e8Q Bc4 Qe7 Re8 Ra2 Bc7 d8R Ngf1+ Kf2 Bb7 Rd7 Bd8 Rc7 Bc6 d7 Ba8 Rca7 Qc6 Qg4 f4 Bbd6 f3 Qf4 Bb7 Qg7 Be7 d8B Ba8 B8c7 Bd8 Kg1 f2+ Kh1 Re6 Qe7 Bb7 Ng4 Re2 Ne5 Ne3 Kh2 f1Q Kg3 Qf3+ Kh4 Nef1 Qg3 Qf5 Qf2 Qe6 Qf4 Ne8 Kh5 Ba8 Qg7 Bh4 Kh6 Nef6 Qe7 Qb6 Qg3 Ke4 Rg1 Bad5 Qf2 Qc6 Qd4+ Kf5 Qe3 Bh1 Qg5+ Ke4 Qf4+ Kd5 Rg5 Bf2 Rg2 Bh4
qqR5/k1B1B2B/5P2/1Q2r2r/3nP3/nrnK1Nn1/Q2bN1B1/Nn1b1b2 w - - 0 1 legal: proof: d4 g5 e4 d5 a4 f5 b4 f4 h4 gxh4 Ra3 b5 axb5 e6 Re3 fxe3 c4 e5 cxd5 exd4 Ke2 Kd7 g4 a5 f4 c5 f5 Kc7 d6+ Kb7 d7 h5 b6 c4 b5 h3 f6 c3 g5 c2 g6 d3+ Kf3 a4 g7 e2 Ke3 e1N Ba3 c1N Qf3 h4 Bg2 d2 Qf1 d1B Bf3 h2 Be2 h3 Qf4 Na2 Bf1 Nc6 Kd2 Rh5 Be7 a3 Nc3 Nc2 Nce2 Re5 Qg5 Nc3 Kd3 a2 Qf4 a1Q Qf2 Na3 Nf3 Rb8 Bg2 Nd4 Rg1 Ka8 b7+ Ka7 Rh1 Qe8 d8B Ncb1 Bc7 Bg4 Rf1 h1N Rg1 h2 b6+ Ka6 Rf1 Ng3 Rg1 h1R Rf1 Rc8 b8Q Rhh5 b7 Bh3 Re1 Rd8 Rf1 Rdd5 Re1 Rb5 Rf1 Bb3 Rc1 Bd1 Rc4 Rb3+ Rc3 Nh6 g8B Ndb5 Bh7 Qa2 Bc5 Bg7 Be7 Qf8 Qe8 Nhf5 b8N+ Kb7 Na6 Bh6 Nc5+ Ka7 Qd7 Qb8 Qd5 Bd2 Qc4 Rb4 Nb3+ Nfd4 Na1 Rb2 Rc2 N5c3 Qb5 Rb3 Rc1 Nc4 Bcd8 Bh6 Qe1 Na4+ Qc3 Ka8 Bh1 Bf1 Bg2 Bd2 Ba5 Nab6 Rc2 Nd5 Bad8 Qa5 Rc1 Nca3 Rc2 Rb4 Qb2 Rb3+ Rc3 Qaa7 Qa2 Qab7 Ba5 Ka7 Bad8 Q7a8 Ba5 Rb4 Rc8 Ndc3 Bc7 Rb3
1QbQ1b2/qrRN2B1/nnn3r1/1qPKP1q1/Rq2NN2/1r4N1/8/3k1b1Q w - - 0 1 legal: proof: g4 f5 a4 c5 f4 b5 axb5 h5 d4 cxd4 Bh3 e5 gxf5 exf4 Bg4 hxg4 Kf2 Ke7 c4 Kd6 b4 Ke5 h4 Ke4 f6 d5 b6 a5 f7 g5 h5 d3 c5 d4 b5 a4 b7 d2 e3 Kd3 h6 f3 b6 a3 e4 g3+ Kf1 g4 h7 g2+ Kf2 a2 e5 Ra7 Rh5 Qd7 Rh4 Na6 b8N Qb5 b7 Ne7 Nc3 Nc6 Qe1 Kc2 Nge2 g1R Nd7 d1Q b8Q d3 Ke3 f2 Ke4 f1B Rb1 a1Q Rh6 d2 Rh5 g3 Rh4 g2 Ng3 Rb7 Kd5 Qg4 Nce4 d1N Bh6 Nb2 Bg7 Nc4 Qa5 Rg8 h8Q Qa2 Rb2+ Kd1 Qd8 Rh1 Rh7 g1Q Rb4 Rh3 Ra4 Qe3 Nh5 Qeg5 Nhg3 Be7 f8N Qa3 Ne6 Bf8 Nh1 Rb3 Nhg3 Qab4 Nf4 Q4a5 Bh6 Rg6 Re7 Qc7 Bg7 Qcb6 Qh1 Qa7 Nb6 Q4h4 Rc7 Qhg4 Nd7 Q4h4 Nge2 Qe1 N2g3 Qea5 Nge2 Qab4 N2g3 Nb6+
3K2n1/n4P1r/PqNbQBB1/2R1Qq2/1QR1r1bn/1rb4r/5k1B/3B3q w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Ra5 Ng4 hxg4 Bb2 Ra6 Bc1 Ra8 Kf2 Kf7 a4 c5 h4 e5 d4 b5 h5 c4 a5 e4 d6 f3 Kg3 f2 Kh4 e3 d5 b3 f6 b2 h6 Kg6 f7 Kf5 h7 Kf4 d7 b1N d6 c3 Qa4+ b4 Be2 f1Q Nf3 c2 Ne5 Qb6 d8Q g3 d7 g2 Qe7 g1B d8B Bg4 Qe6 Nc6 Bf3 Rc8 a6 Nd2 Ba3 e2 Rc1 Ke3 g6 e1R g7 b3 Kg5 b2 Bd6 b1R Rh5 Bf2 Qb4 Na7 Be2 Qh1 Bd1 Rb3 B8e7 Rcc3 Nc6+ Kd3 Bg3 Bd4 Bh2 Nf3+ Kg6 Re2 Rc5 Re5 Bh4 Ke3 Bd8 Bd6 Be7 Nh6 Kf6 Nh4 Bd8 Kf2 Be7 Ra8 h8Q Rh3 g8B Rc8 Bh7 Rb8 Rb1 c1Q Bg6 Qc2 Rc1 Qce4 R1c4 Bc3 Qg7 Rh8 Bd8 Rh7 Qh8 Bc7 Ke7 Qf5 Qf6 Re1 Qfe5 Bd6+ Ke8 Re2 Bf6 Ng8 Kd7 Re4 Ke8 Qb7 Kd8 Qb6+
B2N2B1/2KQ4/1r2r1NP/r2r2r1/R3qP1r/5N1b/3n1Qr1/NkbQ2qn w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 g4 b4 h6 Ra3 Kd7 Bb2 Na6 Rf3 gxf3 g4 Bg7 g5 Ke8 g6 Nb8 Bf6 Bf8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 d4 a5 h4 c5 g7 e5 h5 a4 b6 c4 b5 g4 b7 a3 b6 f2 Nh3 c3 Ng5 a2 Rh3 a1R Qd2 c2 Bd3 f1R Bb5 c1Q Nc3 e3 Ba6 e2 Qc2 e1R Nd1 e4 Rh2 e3 Qe2 Ra5 Qf3 e2 Ne3 Qe7 Nc2 Nf6 g8B Rf2 Na1 Nbd7 b8N Rd1 b7 e1R Nc6 Nb6 Ne5 Nc4 Ng6 Re6 b8N Bd7 Nc6 Nd2 Bb7 R8a6 Nd8 Rb6 Ba8 Nfe4+ Kh4 g3 Kg4 g2 Kf5 Re2 Qf2 g1R Nf3 Rg4 Rh3 Rh4 h6 Bc8 Qf1 Rg2 Qf2 Rh7 Rh1 Rg7 Re1 Qb7 Re3 Qbc6 Ra3 Q6c4 Ra4 Ng3+ Kg5 Nh1+ Kf5 Be7 Bh7 Kd7 Bg8 Bc5 d6 Ba3+ d5 Qd4 Qe3 Qc6 Qe2 Qg1 Qf2 Bc1 Nh8 Ke8 d7+ Ke7 Ng6+ Kd6 Nge5 Re8 Ng6 Re3 Kf6 Kc5+ d6 Kb5 Kf5 Re5+ Kf6 Rd5 Ke6 Re1+ Nge5 R7g5 Ke7 Rd1 Ng6 Re1+ Qe3 Rdf5 Nb7 Nb1 d8Q Rc5 Qe8 Bh3 Kd8 Ree2 Qd2 Re6 d7 Qe4 Qf2 Rcf5 Kc7 Rfe5 Ra2 Kc4 d8Q Kc3 Qd1 Red5 Nd8 Nd2 Ra4 Kb2 Qd7 Kb1
1N4N1/3Qn3/1k1Pnr2/1nr1R2B/Kn3b2/P1qQ3n/q1b2Nb1/1Bn1NQ2 w - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 axb4 e4 f5 exf5 g5 f4 Ra4 f6 Kf7 f5 Ke8 a3 Ra8 g4 h6 Bb2 Qd7 Be5 Qd6 Bf4 Qd8 Ra2 Nc6 Rb2 Nb8 Rb3 Nd7 Rg3 gxf4 g5 Nb8 g6 Nd7 Rg2 Nb8 Rg5 hxg5 d4 Kd7 Kd2 e5 Kc2 c5 Kb3 Kc7 h4 b5 f7 c4+ Kc2 g4 f6 g3 g7 g2 d6+ Kb6 d5 c3 Kb3 f3 h5 f2 d7 e4 d6 e3 h6 c2 h7 c1N+ Kc2 b3+ Kc3 e2 Kb4 e1N Rh2 b2 Qc2 Ned3+ Kc3 b4+ Kc4 b3 Nf3 g1N Nbd2 b1Q Ne1 b2 Rh5 Nh3 Re5 Ndf4 Kb4 Ra5 Be2 f1B Bh5 Qc7 d8Q Ne7 g8B Qa2 Qd3 b1N Ne4 Bh6 f8Q Bf5 f7 Bg2 Nf2 Rc5 Ka4 Ne6 Qd7 Bd2 Qh6 Bg5 f8N Nb3 Qf6 Bf4 Bgf7 Qc8 Bfg6 Na6 Qf7 Rg8 h8N Nb4 Qf6 Bfe4 Nf7 Rh8 Bf5 Rh6 Bh7 Rg6 Nh6 Bf5 Qf7 Rf6 Ng8 Bfe4 Qg6 Qc7 Qf1 Bc2 Qg3 Rb5 Qgd3 Qc3 Qc8 Rc5 Nd7+ Ka7 Nb8 Kb6 Qd5 N1d2 B7g6 Nf3 Qdd3 Nfd4 Qd7 Nb5 Qd2 Bd1 Bb1 Bc2 Qdd3 Nc1+
NKn1N1k1/4rRn1/PQ4R1/1n1Q3Q/3bq3/3P1r1N/1nrQq2n/1b1n1B2 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 h6 g4 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 Kf2 c5 Kf3 e5 Ke4 b5 h4 g4 a4 c4 g7 Kf7 d6 c3 Kd5 b3 f6 b2 a5 f3 d7 g3 h5 f2 a6 c2 h6 c1R h7 e4 Bg2 f1Q Qf3 e3 Qe4 b4 Na3 b1N Rh6 b3 Bf3 e2 Qg4 e1N Nh3 b2 Bg2 Ra7 Ke5 Ne7 Kd6 Nbc6 g8N Nf5+ Kd5 Nd3 Qf4 Qe2 Be4 g2 Nb5 g1N Rg6 Rc2 Bg2 Na3 Rf1 b1N Nc7 Nf3 Na8 Qde7 d8Q Nh2 Qb6 Nb2 d3 Bg7 Qd2 Nb5 Rf2 Qb7 Bf1 N1c3+ Kc5 Be6 Rf3 Kf8 f7 Nce7 Nf6 Nc8 Ne8 Ba2 Rf2 Qbe7+ Kc6 Bd4 Rf3 Rg8 h8Q Ng7 Qh5 Q7e4+ Qd5 Re7 Rff6 Nc7 Kb7 Ncd1 Kb8 Nb5 Rf5 Bb1 Rff6 Re5 Rf3 Rf5 Rf2 Rf3 Qh5 Ke7 f8Q+ Kd7 Qff5+ Ke7 Bg2 Rg3 Nf6 Kf7 Bf1 Re8 Qd5+ Kf8 Rf5 Rf3 Rf4 Re6 Ne8+ Kg8 Rf7 Re7
2r5/n1P4R/P2b2Rb/2nKQQr1/bq3b1Q/1b5N/2R1r1B1/1knRrN2 w - - 0 1 illegal: No possible last move, all moves rejected
4K3/n3q1R1/1r4Nq/1k2qr1r/1q3Q2/1Q1nN2b/PbB2Pr1/qBBB1Q2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 b5 Kd4 c5+ Ke5 h5 d4 h4 g4 h3 g6 b3 g5 e3 g7 c4 g6 b4 d6 Kc6 d7 h2 Ke6 b2 Kf7 e5 d5+ Kb5 d6 e4 Bd2 e2 Qc2 e1Q Nf3 b3 Qd1 e3 Bd3 e2 Be4 c3 Qc2 Qh4 d8Q Bh3 d7 Ba3 Ne5 Nf6 g8B Nc6 g7 Ra5 Ng6 Ng4 Bh7 Na7 g8B Ne5+ Ke8 Nd3 Rg1 h1R Bc1 Rh2 Qc7 Rg2 Nd2 b1R d8Q b2 Nc4 Qf1 Qcd6 e1Q Ne3 Qee2 Qd1 c2 Qf4 Qeh5 Qc8 Qe5+ Qe6 Qe1 Bf5 Q1c3 Qf1 Qb4 Bd2 c1Q Be4 Qd1 Bc1 Qdh5 Bf3 Qh6 Bd1 Qf5 Qb3 Qff6 Ne7 Qe5 Be4 Rh7 Be6 Rf7 Ng6 Rf5 Bc2 Ra6 Bf3 Rb6 Bfd1 Rh5 Bd2 Rc1 Bb1 Rc5 Bc1 Qb8+ Bc8 Rcf5 Bbc2 Qc7 Bb7 b1Q Be4 Qb2 Rb1 Qa1 Rb2 Ka6 Bb1 Kb5 Re2 Ne5 Bec2 Bb2 Ng4 Nd3 Re7 Qd6 Ne3 Qe5 Nh8 Rh2 Rg7 Rg2 Ng6 Qhxe7+
1Q1KbN2/rr6/1QR3Q1/q1n4P/2k1b2R/Pn1bQ1Rr/r2BN2r/b3q3 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f6 Be2 f5 exf5 gxf4 g5 Nd7 Bf3 Nb8 Bg4 hxg4 Kf2 Kd7 h4 Kd6 d4 e5 g6 c5 f6 b5 g7 b3 f7 e4 a3 b2 Nc3 b1B Ra2 g3+ Kg2 f3+ Kf1 f2 Ke2 f1B+ Ke3 b4 Kf4 c4 Qe2 g2 Qd1 b3 Re2 b2 Qd3 e3 Rc2 e2 Na4 e1Q Nc5 c3 Nd7 Ra7 Kf5 Qa5 Qe3 Nc6 Bd2 Nf6 g8R Ne4 Rg3 Bg7 Rc1 Bc2 Rh2 b1R f8Q+ Kc7 Ke6 Ba4 Rh1 Bb7 Qf6 Rh6 Qe2 c2 Qe3 Rb4 Nf8 Kb6 Kd7 Kb5 d6 Bh8 d5 Nd4 Rg8 Nb3 Rg3 Bd3 Qg6 Ba1 Ne2 Rh5 Ke7 g1R Rhh3 Rh1 d7 Rh8 d8Q Rh2 d6 Rh5 d7 Ba8 Rb1 c1R Qb8+ Bb7 d8Q Rc2 Kd7 Ra2 Rc1 Rh8 Rc7 Nec5+ Ke8 Rh7 h5 Rh4 Qdf6 Kc4+ Kd8 Bbe4 Qfb6 Be8 Rc6 Rhb7 Rg4 Rc7 Rhg3 R4h3 Rh4 Rcb7
4krqR/3qr3/R4P1b/R4q2/4BqR1/1rqPb1KN/1n1QQ1Nn/5N1r w - - 0 1 legal: proof: f4 d5 e4 dxe4 c4 b5 b4 bxc4 g4 f5 gxf5 h6 b5 Nc6 Bb2 Bd7 Bf6 Nb8 Bg5 hxg5 f6 Bg4 f5 Be2 Bg2 Bd3 Bh3 Bc2 Bf1 Bb3 axb3 Qd3 Qg4 Qd4 Qd1 Qd8 Kf2 e5 h4 c5 b4 a5 h5 e3+ Kg3 g4 b6 g5 d3 e2 h6 e1Q+ Kh2 c3 b5 c4 b7 a4 h7 g3+ Kh3 g4+ Kg2 e4 b6 e3 Ra3 c2 Nh3 c1B Ra1 a3 Qa4+ Qd7 Qa5 c3 Ng1 c2 Rh5 e2 Rh2 a2 Nc3 Nc6 b8N Bfh6 b7 Bce3 Rh5 c1R Nd1 Rb1 Nh3 Rb3 Qd2 Na5 Na6 Nc4 Nc5 Nb2 Ne6 Rc8 b8Q Qf2+ Kh1 e1Q Qe5 g2+ Kh2 Rc7 Rg5 g1R+ Bg2 Qef1 Rg6 Qh4 Be4 Qg5 Rg7 Rh1+ Kg3 Qd6 Rg6 Re7 Nef4 Qd4 Ng2 Qd7 Rb1 a1Q f7+ Kf8 Rc6 Nf6 Ra6 Qa5 Qe6 Qc3 Rba1 Qg8 R1a5 Qf3+ Kh4 g3 Qe5 Ng4 Qe6 Ba7 Nde3 Nh2 Nf1 Bae3 Qe5 Qg6 Qe6 Rg8 h8R Qgg7 Ngf4 g2 Qe5 g1Q Ng2 Ng4 Qh2 Qf4 Qe2 Qfe5 Qf4 Qg5+ Kg3 Qec5 Qd2 Nh2+ Qg4 Kg7 f8R Qcb5 Rc8 Kf7 f6 Qbf5 Rc7 Rf8 Rc4 Ke8 Rd4 Qg8 Rda4 Beg5 Qge2 Qgc5 Bd5 Be3+ Rg4 Qfg5 Bb7 Qcf5 Be4 Qgf4+
b2kbB1r/1b1P1q1Q/4q2K/qN2bRP1/6Nn/2QR1rQ1/N1n1N1q1/4q3 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 Ke2 h5 Kf3 c5 d4 f5 g4 c4 g5 b4 d6 b3 e4 h3 d5 b2 e5 c3 e6 h4 e7 h2 Qd4 h3 Qf6 c2 Qh6 Na6 b8Q Nb4 b7 Qa5 Ra2 Bg7 Ne2 Be5 Qh7 Nh6 Nbc3 b1B Rf1 h1Q+ Kf2 h2 Ba3 c1Q Nb5 f3 Rd2 f4 Rd3 Qc6 Qc7 Nf5 b8Q Nc2 Bb4 Qd7 Qc3 Qe6 Bc5 Kd7 e8N+ Kd8 d7 Nh4 Bf8 Ra6 Qd6 Bb7 Nf6 Ba2 Ng4 Bb3 Na7 Ba4 Nb5 Rc6 Qda3 Rc4 Qab3 Re4 Qa3 Re3 Qd6 Qb4 Na3 Nf5 Nh6 Bac6 Nb5 Bf6 Qde5 Ba8 Qd6 Bcb7 Bg7 Nh4 Qde5 Ke7 d8N Qa5 d6+ Ke8 Qef5 Be5 Nc6 Kd7 Nb4 Kd8 Na2 Bc6 Rc1 Be8 d7 Qd1 Qf7 h1B Bf8 Qd2 Rf1 Qe1+ Kg1 f2+ Kh2 f3+ Qf4 Bg2 Kg3 Bh1 Qf5 Bg2 Kg4 Bh1 Qg3 Bg2 Rh1 f1Q Rg1 f2 Rh1 Qf6 Qh7 Bgb7 Rg1 Qg2 Rf1 Ng6 Kh5 Qe6 Qh4 Rh3 Ng4 Rg3 Kh6 Rh3 Rg1 f1Q Rh1 Qf4 Rf1 Qff7 Rf5 Rf3 Qg3 Nh4+
B5r1/rP2qr1P/4bQNb/b1Q3N1/nb1B1K2/Bb1N1q2/3n2r1/1R1N3k w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 d4 Ke7 Kd2 Kf6 Ke3 Kf5 h4 Kg4 d6 c5 d5 g5 d7 a5 b6 f5 h5 c4 d6 c3 b7 f4+ Ke4 f3 h6 c2 b5 a4 b6 f2 h7 a3 Qd4 a2 e3 a1R Qf6 R1a7 Rh6 Na6 b8N Nc5+ Ke5 Na4 Ba3 c1B Nf3 g1Q e4 g2 Ne1 Kg3 Rh1 g4 Nc6 Bch6 Nd3 Qe7+ Kf5 Rc7 e5 Raa7 e6 Kf3 d8B g3 d7 Qh2 Nf4 g1B Nc3 g2 Nd3 Qg3 Nd1 Qh3+ Ke5+ Kg3 Be2 f1B Bf3 Bc5 Ke4 g1R Nce5 Rg2 Ng6 Bb4 Ke5 Be2 Ba8 Ba5 b7 Qg4 Rg1 Kh2 Re1 Qf3 Rf1 Rc3 Bb6 Rc7 d8N Bd7 Bg1+ Kh1 Nf7 Bc8 Ng5 Bd7 Nc5 Bc4 Nd3 Bb3 Re1 Qg7 e7 Bde6 e8Q Bfb4 Qb5 Rf7 Qc4 Qf8 Qc5 Qe7 Qg7 Nf6 Bd4+ Qf1 Qf8 Rg8 Qg7 Ne4 Qf6 Qg1 Kf4 Nd2 Re2 Qf1+ Rf2 Nf3 Rb2 Qf2 Rb1 Nd2+ Ke5 Qe2+ Kf4 Qf3+
1n3bQ1/Brk1r1bN/n2q4/N4K2/2bR1Q2/P6Q/q1P1Nb2/Rr1qN2r w - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 h5 exf5 c5 b4 axb4 Bh3 cxd4 fxg5 Qb6 g6 Qa5 g5 Qd8 Bg4 hxg4 Kf2 b5 Kg3 d5 Kf4 Kd7 h4 e5+ Kg3 e4 Kf4 e3 g7 e2 f6 e1B a3 d3 h5 d4 f7 g3 g6 d2 h6 g2 h7 b3 Nc3 b4 Nh3 g1B Kf5 b2 Qf3 b1R Qg3 d1R Bd2 d3 Ke5 b3 Qh4 b2 Kf5 Bgf2 Nf4 Ba6 Ng2 Ra7 Ne2 Rb7 Be3 d2 Qf4 Bc4 Rh4 Na6 Ba7 Nf6 g8N Kc8 g7 Nd7 Rg4 Ndb8 Ne7+ Kd7 g8Q Rdc1 Ra2 d1Q Ra1 Bc3 Nc6 Bcg7 Na5 Qe7 Ne1 Qed6 Qe3 Kc7 Rd4 Qd3+ Qe4 Qb3 Qf4 Qa2 Nd3 Rh1 Ne1 Rc1 Qf3 b1Q Qf4 Be7 f8N Rd1 Nd7 Bef8 Nf6 Rc1 Qe6 Rg8 h8Q Rd1 Qh5 Rh8 Qg8 Rh7 Qhf3 Qc1 Qb3 Qd2 Qh3 Rdb1 Qhg4 Qd1 Qh3 Rh6 Nh7 Re6 Qg5 Re3 Qf4 Re7
rr4bb/1R2b3/1bR4B/qr5N/KB4Pn/2BQ2qk/1PR1n2q/1RrQ4 w - - 0 1 illegal: No possible last move, all moves rejected
B3q3/1n1B1kbQ/nN3b2/Q2q1N1P/2qP1K2/B2b2b1/1nrQ2Qq/R4r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 g5 d3 c4 h5 c3 e5 g3+ Kf3 g2 e6 c2 e7 a4 d6 a3 d7+ Kf7 b6 g4+ Ke2 f3+ Ke3 f4+ Ke4 a2 b5 f2 b7 g3 b6 f3 Na3 Qe8 d8Q Nf6+ Ke3 Ne4 Qd4 Nd6 Qg4 Bg7 Qh4 Rf8 Qe4 Na6 b8Q Nb7 Kf4 Bf5 Qd8 Rc8 Ne2 g1B Bg2 f1Q Nd4 f2 Qd2 Qd1 Nc4 f1Q+ Bf3 g2 Ba3 c1N Rh3 Bf2 Rg3 Bh7 Nf5 g1Q Bh1 Qb3 Qg2 Qh2 Qa5 Qbb5 Qd4 Qbd7 Qe3 Qd5 Qed2 Nd8 b7 Bf6 b8Q Nb7 Nb6 Rc2 Rb1 a1B Qc7 Bg7 Qd7 Baf6 d4 Qfc4 Ra1 Bg6 Nh4 Bd3 Nf5 Nb3 Qc7 N3c5 Qd7 Na4 Qc7 Qec6 Qd7 Nb2 e8B+ Kg8 Qe7 Qc8 Bd7 Qe8 Qee2 Kf7 Qg4 Kg8 Qg6 Rf7 Qh6 Rf8 Qh8+ Kf7 Qh7 Rg8 Bc8 Nd8 Qf3 Qdc5 Qh6 Bh8 Bd7 Rg5 Qh7+ Bhg7 Nh4 Re5 Qac3 Re1 Nf5 Rf1 Qa5 Qc6 Qg2 Q6b5 Qh3 Qbc5 Ba8 Nb7 Qg2 Q4d5 Bb5 Qcc4 Bd7 Bxg3+
3r1Rb1/1r1BN3/k3n1QK/b1BP2qN/5P2/B1qNnQ2/3N4/qrqnr3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 Ke2 Kd7 Ke3 c5 Kf4 h5 Kg5 e5+ Kg6 b3 f4 e3 g4 b2 d4 e4 g5 c4 d6 h3 d5 e2 b7 e1Q b6 c3 Rh2 h4 Qc2 e3 Ne2 Na6 b8B Nc5 b7 Ne6 Rf2 h2 Nd2 h1Q Nb1 h3 Nd2 b1R Ba3 h2 Rg2 Nh6 Nc1 e2 Ba7 Rh7 b8Q Nf5 B7c5 Ne3 Nd3 Be7 Qcb3 c2 Q8b6 c1Q Qc3 Rg7+ Kh6 Bf6 Qcb3 Bc3 g6 Ba5 Rg3 Qc3 Bh3 Qec1 Bf5 Rf7 g7 e1R g8N Qf1 Bh3 h1N Ne7 Nf2 Rg8 Nfd1 Rh8 Qg8 Qc6+ Kd8 d7 Rg7 Qa6 Kc7 d8N Rf7 Bf5 Qgg2 Rf8 Bd7 Ndc6 Rd8 Ng8 Be8 Bh3 Re7 Nf6 Bf7 Bf5 Bg8 Nh5 Red7 Qab6+ Kc8 Bh3 Rb7 Ne7+ Kb8 Qc6 Qfg1 Qe8 Kc7 Qg6 Q1h1 Bcb4 Kb6 Bc5+ Ka6 Bg4 Nf2 Qd1 Qhg1 Qf3 Nfd1 Nc4 Qa2 Nd2 Qaa1 Qe8 Nd4 Bd7 Ne6 Qg6 Qg5+
2Bqrbr1/N4B1P/3NK2b/4B3/RrQq1Nr1/Nn1Q1nk1/4b1P1/1b4q1 w - - 0 1 legal: proof: d4 e5 b4 c5 f4 exf4 Qd3 cxd4 Qxh7 g5 a4 b5 Ra3 g4 Rf3 gxf3 axb5 Be7 Kf2 Bd6 Ke1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 h4 a5 e4 f5 b6 d5+ Kb5 d3 c4 d2 b7 d1Q c5 a4 c6 a3 h5 Ra4 h6 a2 c7 a1B Bb2+ d4 Kc4 f2 Be2 f1R Bg4 f3 Qe7+ Kf4 e5 f2 e6 d3 h7 d2 Bc1 Kg3 Rh4 f4 Be2 f3 Rf4 Na6 b8N Bf6 Qf7 Ne7 Bb2 Re1 Na3 f1R Nh3 f2 Nc6 Nc5 Na7 Rg8 Bh5 Nf5 e7 Nh4 e8N Bh6 Nd6 Bf5 Kd5 Ree8 c8B Bb1 b5 Nb3 b6 Be7 b7 Qe1 b8Q d1Q+ Bd4 Rh1 Qb4 f1B Qd2 Be2 Be5 Nf3 Qd4 Qb4 Qd3 Qg1 Qe6 Qbb6 Bf7 Qbe3 Ng5 Rh4 Nh3 Rhg4 Re4+ Kh4 Nf4 Kg3 Rd4 Ra6 Ra4 Rb6 Qc3 Rb7 Qf5 Qc5+ Ke6 Rb4 Qfd3 Qcd4 Qcc4 Bef8+
2B3QK/kb1BPR1r/B2nnNb1/rq1bN1n1/Q4P1B/N1b1r2r/8/2q5 w - - 0 1 legal: proof: h4 f5 a4 e5 b4 Ke7 Ra3 g5 Rd3 gxh4 Rd5 b5 axb5 c5 d3 e4 Rd4 f4 Qd2 exd3 Qxf4 cxd4 Qf7+ Kd6 Kd2 Kc7 g4 Kb7 e4 h5 f4 a5 c4 a4 b6 h3 c5 h2 e5 h4 b5 h3 e6 a3 e7 d5 g5 a2 g6 a1R g7 R1a5 Nf3 Nh6 g8B Nc6 Qf6 Nf7 Na3 Qe8 Qh4 Bg7 Ng5 Ncd8 Qh5 Ne6 Nh7 Nd6 Rg1 h1B Qd1 h2 Bb2 Be4 Nf6 h1B Qa4 Rh3 c6+ Kb8 b7 Bg6 c7+ Ka7 b8N Bb7 c8B Bh8 Kd1 d2 Ke2 d1R Nbd7 Rdd3 Ne5 Rde3+ Kd2 d3 Kc3 d2+ Bd3 d1Q b6+ Kb8 Bf7 Qd7 Be8 Qb5 Bed7 Bhe4 Rg5 Qa1 Rf5 d4+ Kd2 Bbd5 b7 Ka7 Bc4 d3 Kc3 d2+ Bd3 Nd8 Kd4 d1N Bc3 Qab1 Be1 Nc3 Bh4 Qc1 Be2 Bh1 Bf1 Nce4 Bc4 Kb6 b8Q+ Bb7 Bf1 Ng5 Be2 Bd5 Bd3 Qb3 Ba6 Qbb1 Qc7+ Ka7 Qcc4 Qb5 Qa2 Be4 Qg8 Bbd5 Nh5 Bb7 Rf7 Bed5 Nf6 Ref3 Neg4 Nde6+ Ke5 Re3+ Qe4 Rc3 Qa4 Rcf3 Qh7 Ng7 Ne4 Ndf5 Kf6 N7e6+ Qg7 Bbc6 Bcb7 Rg8 Bbc8 Nd6 Nd2 Bb1 Ne4 Re3 Kg6 Bb7 Kh6 Nf3 Kh7 Bd3 Qg6 Bc3 Ne5 Bb1 Qg7 Bc2 Qf8 Rg7+ Kh8 Nfg5 Nf6 Bg6 Qg8 Rh7+
4qQqR/1Pr1b2q/2kB4/q4BN1/1KbQn1N1/n1P3Qq/4Q3/3bq1Bq w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 Ra6 h5 Rg6 a5 b4 Ra6 Rg5 Rf6 Rg6 Rf5 gxf5 Na6 Rg3 Nb8 Rg4 hxg4 Kd2 g5 h4 d5 e4 Kd7 c3 d3 b6 g3 f6 g2 f7 g4 b5 d4 e5 g3 h5 f2 h6 a4 h7 f3 b7 a3 b6 a2 e6+ Kc6 e7 a1Q e8Q+ Nd7 b8B Qa5 b7 Be7 f8Q Nf6 Qc2 Ne4+ Kd1 d2 Qef7 Ne5 Bc4 Be6 Bb2 Qe8 Bd3 Nc4 Q7g8 Na3 Bc1 Bc4 Qg4 Rg8 h8Q Rg7 Nh3 Rf7 Bd6 g1Q+ Bf1 g2 Ng5 Rh7 Qg3 Qh2 Bd3 Rf7 Qhg7 Qh7 Rh4 f1B Qa2 g1Q Qf6 f2 Rh1 Nb5 Kc2 Be2 Na3 d1Q+ Kb2 f1Q Be3 Qff5 Nc2 Na3 Rh3 Qh1 Bg1 Qe1 Ne3 Bd1 Ng4 Qfd5 Bc2 d3 Qd4 d2 Rh5 Qe6 Bb1 Qg8 Rh8 Qhh7 Bd3 Nf2 Bf5 Ne4 Qb1 Qeh6 Qbd3 Qh3 Qd3e3 Bf3 Qe2 d1Q Bf2 Qeh1 Bg1 Qe1 Qed3 Ba6 Kb3 Bd1+ Qc2 Qc7 Ka4 Bc4 Kb4 Bd8 Qde3 Rd7 Qb2 Be7 Qd4 Qcd8 Qbh2 Qa8 Qa2 Rc7 Qe2 Qa5+
1R3r1n/K4R2/2r2QPq/b1N1N1nr/Q2q4/NPn1nq1n/B4k1n/4N1R1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Be3 g3 Kd2 Qb6 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Qd8 Kd3 Ke7 Kc4 Kd6 e4 Ke5 b6 f5 Kb5 d5 c4 h5 b7 a5 g6 a4 g7 h4 g5 h3 g6 h2 b3 f3 c5 Kf4 e5 Kg3 e6 d3 e7 f4 e8Q d4 c6 d2 c7 d3 Kb6 a3 Bg2 f1Q Qee2 f2 Qe8 a2 Qee2 f3 Qc1 d1N Qa3 d2 Qc4 Na6 b8N Nh6 g8N Bb4 Qc5 Nf7 Nh6 Ba5+ Kb7 Qd6 c8R Nc7 Qh5 Ne6 Rd8 Qd4 Na6 Neg5 Rd5 Raf8 Rd8 Rh7 Qa4 Nh8+ Nf7 Qfd3 Ra8 f1N Na3 f2 Rc1 a1R Rc7 Rc1 Be4 Rc6 Nc5 Nc3 Rb8 d1N Ka7 Qe2 Bf5 Nfe3 Bb1 f1N Ne5 Nf2 Ba2 Qeg4 Ngf3 Qh4 Qb4 Nfh3 Ne1 Kf2 Rg1 h1Q Qa4 Nh2 Qg4 Qf3 Rf7 Qh6 Qe4 Qg7 Qf5 Rh5 Qf6 Qh6
1Qq5/2B5/r3q3/1n1r2rR/kbR1qPrN/2n1B3/2PRrKQB/4nn1B w - - 0 1 illegal: No possible last move
1B1bbbrk/2R1PPn1/1r1b4/3BQ2r/n3Nr2/3Bn1nn/1Q2N3/1K3QB1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 b4 h5 Kf2 f5 Ke1 f3 Ra6 f4 Rg6 Qf6 Rg5 Qf5 gxf5 Ba6 Rg3 Bc8 Rg4 hxg4 Kd2 Kf7 h4 a5 c4 Ra6 Kc2 d5 e4 g5 f6 a4 e5 a3 h5 f2 c5 f3 c6 g3 h6 d3+ Kb3 d2 Kc2 g2 c7 d4 h7 a2 b6 a1B b5 g4 b7 g3 b6 d3+ Kb3 Ne7 Rh3 Rg8 h8Q Nf5 Be2 f1N Rh6 f2 Ba3 Nd7 Ka2 Nc5 b8Q Bd7 c8B Be8 b7 Rb6 Rg6 Na4 Qc1 d1R Bd7 d2 Bc6 Re1 Bd3 d1N Ne2 g1B Bh1 g2 Nbc3 Bh2 Bc5 g1N Bd4 Bb2 Kb1 Bba3+ Qb2 Bae7 Qh3 Bd8 Bc6 Bf4 Ne4 N1g3 Qd6 f1R b8B Rf3 Rh6 Rff1 Rh7+ Kg6 Ra7 Ng7 e6 Rf3 Qd5 B4d6 e7 Rf4 f7 Ref1 Qg2 Kh7 Rc7 Kh8 Qe5 Rf5 Qf2 Rh5 Bd5 Nh3 Qg2 Rf6 Bg1 Ne3 Qf1 Rf4
3Rr1Nr/n1b4Q/2q2Qnn/n1Q1Q1b1/P1N1b1k1/1rP2n1R/BK2Np2/8 w - - 0 1 legal: proof: b4 c5 g4 a5 d4 cxd4 f4 e5 fxe5 h5 gxh5 axb4 a4 Qf6 Bb2 Qd8 Ba3 bxa3 Kd2 Ke7 Kc1 Ke6 e4 g5 h4 b5 h6 d5 h5 f5 c3 b4 h7 d3 h6 d2+ Kc2 a2 Bg2 f4 Rh2 g4 Qe2 d1R Qc4 g3 Bh1 f3 Rg2 b3+ Kb2 f2 Qa6+ Qd6 Qb5 d4 Nd2 d3 Rb1 a1N Qa5 Be7 Qb6 Bg5 Qc7 Nc6 Ne2 Bb7 Nc1 Na7 Qb6 Ne7 Rh2 g2 Qc5 g1B Rh3 Qc6 Nc4 d2 Ne2 Bh2 Bg2 Rf1 Rd1 Ng6 Bh1 Rhe8 h8Q Bhf4 h7 Rg1 Ka3 b2 Qhf8 b1N+ Kb2 Rab8 h8Q Nb3 Qh7 Na5 Qfh6 Na3 Q6g7 Nc2 Qgf8 Ne1 Bf3 Ne7 Bh5 Nf3 Bf7+ Kd7 Qfh6 Ng6 Q6g7 Rh8 Qf6 Rbe8 e6+ Kc8 e7 Kd7 Bd5 Bc7 e5 Ba8 Rc1 Re1 Rc2 Ra1 Rc1 Ra3 Rd1 Qd6 Bf7 Be4 Bg8 Qc6 Bf7 Rd8 e8N Ra8 Ned6 Rad8 Nc8 Rde8 Ne7 Ref8 Nd6 Rfg8 Ba2 Rd8 Re1 Rc8 Nc4 d1N+ Ka1 Ne3 Kb2 Nf5 e6+ Kd8 Rf1 Nh6 Ng8+ Ke8 e7 Kd7 Qf8 Ke6 Rd1 Qd5 Qfg7 Kf5 e8Q Kg4 Qf6 Qc6 Qee5 Re8 Rd8 Rb3+
1RR1B1r1/2n3bk/q1nNQ3/4P1RP/1bQ1p1b1/QK2r2r/2R5/1n1bb2N w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 hxg4 d6 Rh4 Nh3 Rh7 Ng1 Rh8 e4 Rh5 d4 Rh3 d5 Rh8 Be3 f6 Bd4 exd4 e5 f5 Qc2 Qh4 Qe2 Qd8 Qe4 fxe4 Kd1 Kf7 Kc2 Kg6 b4 a5 f4 c5 h4 g3 f5+ Kh7 b6 g5 b5 g2 f6 c4 d7 a4 d6 a3 b7 g4 f7 c3 b6 a2 Rh2 d3+ Kb3 g3 Nh3 g1R Na3 g2 Rh1 c2 Nc4 c1B Nf2 d2 Rh2 Qf6 d8Q Bg4 d7 Bb4 f8Q Nc6 b8Q Nge7 b7 Nd5 Qbc8 Nc7 b8R Ra5 Rb1 a1B Qde8 Bac3 d8R Ra8 Be2 Re1 Qee6 g1N Nd6 Nf3 Bb5 Re3 Nh1 d1B+ Rc2 Rg8 h5 Be1+ Bd3 Qg6 Qc4 Ra5 Q8e6 Rb5 Rdc8 Nd2+ Ka4 Rb6 Ra1 Nb1 Kb3 Rh3 Qf3 Bh6 Qe3 Kh8 Qc1 Bg7 Qa3 Kh7 Ra2 Bdf3 Rg2 Bd1+ Rac2 Bge2 Rg5 Bg4 Qc3 Ra6 Bb5 Ra5 Ba4 Rd5 Bb5 Rdd3 Ba4 Rde3 Qd3 Ne7 Be8 Nc6 Qc3 Qf6 Qd3 Qf1 Qc3 Qa6 Qd3 Nc3 Qdc4 Nb1+
1r3kn1/2RB3K/2nP4/B3Pp1b/4QQ2/1rBN1r2/qQQ3rr/2bnb2N w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 g5 Ke2 c5 Kd3 a5 h4 a4 b6 f6 h5 a3 h6 g4 b7 a2 d6 a1B h7 Ra5 b5 Ra3+ Nc3 Be7 d7+ Kf7 b6 Bb2 Qc2 Qc7 d8B Kf8 Nf3 g1N Ne5 Nc6 b8Q g2 b7 g3 Qa8 Ne2 b8Q g1R Bh3 g2 Bd7 Qa7 Ba5 Rf1 Qab7 Ra2 Nd1 g1R Nf2 Rg2 Q7a8 Ba3 Bb2 Nc3 Ba1 Rb1 Rc1 Rb3 Nh1 Nd1+ B1c3 Rab2 Qd6 Rb8 Qd4 R2b3 Qf2 Bd8 Qf4 Bb6 Nf3 Bb2 Ne1 Bc7 e5 c4+ Ke4 Ba6 d4 f5+ Kf3 Bb6 d5 Bf2 Nd3 Be1 d6 Ba3 Qb7 Qa8 Qe4 Bb5 Kf4 Ba6 Bd2 c3 Qbb4 Bb5 Qb2 c2 Bc3 Bc4 Qc5 Bf7 Qce3 Re2 Kg5 Bh5 Qf2 Re3 Qd2 Rf3 Qdf4 Nge7 Kh6 Qa6 Rb1 c1R Ra1 Rg8 h8Q Rc2 Rc1 Rh2 Qh7 Rg7 Qg6 Rg8 Qgg2 Rgg3 Kh7 Ng8 Qgc2 Rgg2 Nhf2 Bc5 Nh1 Be3 Ra1 Bc1 Ra4 Qb5 Rc4 Qa4 Rc5 Qa2 Rc4 Nd8 Rc7 Nc6
rqRR4/r5b1/6n1/1nQ2rQ1/BQ3nqP/1N4pk/bQ1P3n/K2RN2n w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 Ke7 h4 Kf6 b6 c5 d6 g5 b4 a5 b7 c4 e5+ Kf5 d7 c3 e6 g2 b5 a4 e7 c2 e8R c1N b6 g3 Nf3 Kg4 Ra3 g1Q Re5 f5 Nc3 g2 Re3 f4 Nb5 Na6 b8Q Bg7 b7 Ne2 Rec3 Ng3 Ra2 a3 Rc4 Nc7 Nfd4+ f3 Qc1 f2+ Kd1 Ne7 Kc2 Rf8 Kb1 Ng6 Ka1 Rf5 Bd3 f1N Bc2 Nh2 Ba4 Kh3 Rac2 a2 Na3 Qf8 d8Q g4 Qg5 Be6 R4c3 Bc4 Rd3 Nb5 Qd6 Qb8 Qb4 Bf7 Rc8 Qd1 Re1 g1N Nc2 Ne2 Rf1 Nef4 Ne1 Qf3 Qcc5 Nh1 Qb2 g3 Nb3 Qg4 Rdd8 Qa7 b8Q Bc4 Q8e5 Qb8 Qbd4 Bf7 Qdb4 Bd5 Ng2 Bg8 Rd1 Ra7 Ne1 Bd5 Kb2 a1R Qec3 Ra3 Kb1 Bc4 Qb2 Bf8 Na5 Ba2+ Ka1 Bg7 Bb3 Ra8 Bc2 Rd3 Bb3 Rd6 Ba4 Rda6 Nb3 R6a7
2Q5/3K1n1B/Q1NR1RP1/P2n2bq/2rB3k/n2RqQ2/q1pb4/2Rqq1r1 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Be6 Nc3 Nh6 Nce2 Bf7 Nf4 gxf4 g5 Bh5 h3 Bg4 hxg4 Ng8 Ke2 Kf7 a4 e5 d4 c5 d6 b5 g6+ Kf6 g7 Kg5 d5 h5 a5 h4 d7 c4 d6 e3 Kf3 e4+ Ke2 b3 f6 f3+ Ke1 f2+ Ke2 b2 f7 b1N Bb2 h3 Bg2 b4 Ba3 h2 Qf1 b3 Qc1 b2 Ra2 c3 Bc5 Nh6 g8Q+ Kh4 g5 Be7 f8Q Nf7 Qg6 Qb6 d8R Rg8 d7 Nc6 Bd4 Nb4 Qc6 Qc5 Qa6 Rc8 Qd1 Na3 Nf3+ Kg4 Ne5+ Kh4 Bh3 b1Q Bf5 Nd5 Nc6 c2 Rb2 Qa1 Rb6 Qa2 Bh7 Rg6 Rg1 h1Q Qdd3 Rg8 Rc1 Rc7 Qc8 Qh3 Qda6 Qf3+ Kf1 Qh5 Kg2 f1Q+ Kh2 e2 g6 Qd1 Kg2 e1Q Kh2 e3 Kg2 Nh6 Qf3 e2 Rf8 Bf6 d8R Bg5 Rf6 Re8 Rb3 Re5 Rd3 Nf7 Rdd6 Re4 Qff5 Rg4+ Kf3 Rg1+ Ke4 Qcc3 Qf3 Qcd2 Kf5 Qe3 Ne5 Rc4 Ke6 Qb4 Kd7 e1B Nc6 Bd2 Bc5 Qc3 Ba7 Qce5 Bb6 Qee1 Bd4 Q5e3
r1N4q/Q1r2p1N/N1r2bnr/bR3bP1/P4RQ1/1Nk2q2/2r1B2n/3K3Q w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 f4 e5 hxg5 axb4 c4 exf4 Ba3 bxa3 cxd5 Qf6 Qc2 Qe7 Qd1 Qd8 e4 Kd7 d4 Kd6 g4 c5 g6 b5 g7 h5 g5 f3 Ra2 b4 Ba6 f2+ Ke2 f1R Nc3 h4 Rb2 b3 Na2 h3 Nf3 c4 Nb4 h2 Nd2 Rf6 Rf1 h1Q Rf4 Ne7 g8N Ng6 Ne7 c3 Qf1 a2 Kd1 a1B Be2 Rh5 Na6 Qf3 Qh1 Nc6 Rb1 b2 Nb3 Rh6 e5+ Kd7 d6 Ke6 d7 c2+ Ke1 Qe8 d8Q c1R+ Kd2 Rc2+ Kd1 Bg7 Qb6 Qh8 Qa7 Bd7 Nc8 Kd5 e6 Nce5 e7 Ng4 e8N Nh2 Rf5+ Ke4 d5 Rfc6 d6 Bc3 Rf4+ Ke5 Nf6 Ba5 Nh7 Bf5 d7 Rc7 Rc1 b1R d8Q Rbb2 Qd2 R2c6 Rb1 Rbc2 Qde3+ Kd5 Qeg1 Bf6 Qg4 Be4 Nbc5 Kd4 Rb5 Kc3 Nb3 Bf5
1R1Q1bR1/qPbKRR2/kNQ5/3Q3n/2P1bb1n/2rB4/2p2qN1/2rbn3 w - - 0 1 legal: proof: b4 b5 e4 c5 h4 g5 c4 gxh4 Nh3 f5 Ng1 d5 Bb2 d4 Bc3 dxc3 exf5 cxb4 a4 Nf6 axb5 Ng8 Ke2 Kd7 Ke3 Kc7 Kf4 Kb7 Ke5 a5 g4 h5 d4 c2 f4 h3 b6 h4 d5 a4 d6 b3 g5 h2 d7 h3 Ke6 b2 g6 a3 f6 a2 f7 Na6 g7 Qc7 f5 Nc5+ Kd5 e5 d8R e4 f6 e3 Rd7 e2 Nd2 b1Q Qe1 Nd3 Ke6 Nh6 g8Q Nf5 Qf2 e1B Qfg2+ Ka6 Ndf3 Bg3 Ne1 Nh4 Qc6 Bf4 Ne2 Qa7 b7+ Qbb6 Rg1 h1N Ng2 h2 Nc3 Ng3 Na4 h1B Re1 a1B Re3 Ne1 Bd3 Bae5 Re4 B8h6 f8R Nh5 f7 Bc7 Rd8 Rh7 f8Q Rg7 Qc5 Rg3 Qd5 Bg7 Ke7 Bf8+ Ke8 Rh3 Rf7 Bg4 Rb8 Bd1 Ree7 Re3 Kd7 Rh3 Ne3 Be4 Qh8 Rf3 Rg8 Rg3 Ng2 Rh3 Bf1 Ra3 Bd3 Rc3 Qg6 Qf6 Nb6 Qd4 Qe6 Qf2 Qec6 B8h6 Qhd4 Bf8 Qde6 Ka5 Ke8 Qa6 Qd8 Ra7 Nd5 Qab6 Qed6 Ra6 Kd7 Qa7 Qe6 Rb6 Qe5 Rb1 Nb6+ Ka6 Qed5 Rc1
5B1q/8/qQrN2bn/N1R1R2r/r4qQ1/1R1Pp1bq/Q2KP3/2Qn2kn w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 exf4 gxh5 c6 b4 Qb6 Bg2 Qd4 b6 Rh7 b7 Qe5 b5 Qc7 b6 Rh8 Be4 Qd8 Bd3 Rh6 Bc4 Rh8 Bb5 cxb5 c4 Ke7 h4 Kf6 c5 Ke5 d3 Kd4 h6 g5 c6 d5 h5 f5 h7 a5 c7 g4 h6 f3 Nc3 f4 Qa4+ b4 Qb5 f2+ Kd1 f1Q+ Kd2 a4 Ra2 a3 Qc6 b3 Ra1 f3 Rb1 b2 Qg6 f2 Qf5 a2 Ra1 b1N+ Kc2 g3 Rh5 g2 Bb2 Ke3 Nf3 g1R Nd2 d4 Ba3 Nd7 b8R Ne5 b7 Rg6 Nb3 Bd6 Na5 Qh3 Qg4 f1Q Nb5 Nc3 Rc1 Kf2 Kd2 Nd1 Rc5 Bf5 c8Q a1Q Bb4 Bc7 Nd6 Rf6 Qe6 Bg6 Qd5 Qa4 Qa2 Qb5 Rg5 Qa6 Rh5 Nf7 Rhd5 Ne7 Re5 Nf5 Ba3 Ng3 Bb4 Re8 h8Q Kg1 h7 Nh6 Qhg8 Qf3 Qgc4 Rh8 Qc1 Ra7 Qf4 Nh1 Qe3+ Qf2 Ba3 Rf5 Bb4 Rh5 Ba3 Rf8 h8Q Rf6 Qg7 Qh8 Qgg8 Kh2 Qc8 Qf4 Qg4 Re6 Ra8 Rf6 b8Q Re6 Qb6 Rf6 Ndb7 Rc6 Rb8 Bd8 Rc3 Qg2 Qc7 Qb5 Nc4 Ra4 Bf8 Qa6 Ncd6 Qh3 Na5 Bh4 Rbb3 Bg3 Qb6 Qff6 Qef3 Kg1 Rcc5 Qf4+ Qe3+ dxe3+
1Kb1Qb2/B1B2r2/2Rrq3/1NN3b1/2rP2Nn/1qP1p3/2B1q1bQ/2nNk3 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 b4 c5 c3 cxb4 Ra2 d5 Bc4 d4 Bf1 d3 Rc2 dxc2 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Ke4 Kg5 g4 h5 b6 a5 f6 b3 b7 a4 f3 a3 f7 h3 d4+ Kh4 f4 Kg3 g5 Kf2 g6 h2 g7 h4 f5 b2 f6 a2 Bc4 a1R Na3 b1Q Qd3 h3 Bf4 c1B Qc2+ Ke1 Nb5 Nd7 Kd5 e4 Kc6 Nh6 g8N Nf5 b8B Qe8 Kc7 R1a4 Bb3 Rh7 Nh6 R8a6 Ng4 Nh4 Ba7 Ne5 Kb8 Nd3 Bc7 Rd6 Qb2 Rb4 Bc2 Bg5 Qa2 e3 Qb2 Bg7 f8Q Rc4 f7 Qe6 Qe8 Nc1 f8N Qa2 Nd7 Qb3 Nc5 Bf8 Nf2 Rf7 Nf3+ Ke2 Rg1 h1B Ne5 h2 Neg4 Bg2 Nd1 h1Q Rf1 Qh3 Rf6 Ke1 Qa2 Qf3 Qb2 Qe7 Qa2 Qe2 Re6 Rd5 Rc6 Rd6 Nf6 Bh1 Bg6 Qh5 Qh2 Qe2 Bc2 Bg2 Ng4 Qe6
2N3qQ/1Bqn4/RnQ1K3/r2N1Qnq/bRrp3n/R1Q2P2/2b1P1k1/7b w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nh3 cxd4 Ng1 e5 h4 e4 Bd2 e3 Bh3 exd2+ Kf1 Nf6 Kg2 Nc6 Kh2 Ng8 Bf1 Nb8 Kg3 Qe7 Kg2 Qd8 Nh3 g5 Ra4 g3 Ng1 g4 Ra2 Bh6 Ra1 Bg5 hxg5 Ke7 Qe1 Kf7 Qd1 Ke8 c4 Ke7 b4 Kd6 g6 Ke5 b6 Kf4 g7 d5 b5 a5 c5 h5 c6 h4 b7 d3 b6 a4 c7 d4 Ra2 a3 Qe1 d1B Nf3 h3+ Kg1 d2 Nh2 g2 Nc3 Ra5 Ra1 a2 Nf3 Bc2 Kh2 d1N Ng5 g1N Nge4 Bd7 c8Q Bda4 Nd6 Qc7 Bg2 Nh6 g8Q Nd7 b8R Nf7 b7 Ne3 Qg6 Nc4 Ra8 Rg8 b8Q Ncb6 Bb7 Rg7 Rb1 a1Q Rb4 Qa2 Qh7 Qd5 Ra6 Qh5 Qa8 Rgg5 Qch8 Rgc5 Nc8 Rc4 Nd5+ Kg5+ Nd6 Nf3+ Kg3 h2 Qc3 Nh4 Ra1 h1B f3 Qc5 Ra3 Qc7 Kh2 g3+ Kh3 g2 Qae8 g1Q Nc8 Nf6 Qc6 Nfd7 Nde7 Kf4 Qhg6 Bd3 Qf5+ Ke3 Nd5+ Kf2 Qe4 Qg8 Qee6 Bg6 Qf5 Qhh7 Kg4 Kg2 Qfe5 Bgc2+ Kf4 Nd6 Qe4 Qh5 Qf5 Nb8 Ke5 Nf7+ Kf6 N8d7+ Ke6 Ng5+
7Q/1bnNn3/rbRn1r1Q/2qB3K/1b1p2PR/4QRQN/2P1q3/4b1qk w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 Ra3 h5 Ra1 h4 Be3 g6 Bf2 g5 Bg3 hxg3 axb5 gxf4 e4 Qb6 exf5 Qd8 Ke2 Kf7 Kf3 Kf6 b4 Ke5 h4 d5 h5 a5 f6 g2 h6 d3 h7 d2 f7 a4 b6 a3 b5 a2 b7 Qb6 Rh4 Qc5 b6 Na6 b8R Bb7 Ne2 g1B Re8 Nc7 Qe1 d1N Rh3 Ra6 Rh6 Ne3 Rh4 Nf5 Na3 Nd6 Rc8 e6 Qc1 Ne7 Bg2 Be3 Rb1 a1Q Rb3 Bf2 Qd2 Qg1 Rd3 Rg8 h8Q+ Rg7 Qh6 Rg6 Qh8+ Rf6 Qh6 Bg7 f8Q Be3 Qfh8 Bf8 Ng3 Bf2 Nh1 Bd4 Qc1 Bf2 Re3+ Kd4 Rb3 e5 Nc4 Be3 Nf2 e4+ Ke2 Ng6 Bf3 Ne7 Nh3 Bf2 Bh1 e3 Kf3 e2 Ne5 e1B Nd7 Be3 Ke2 B3f2 Rf3 Ke4 Qd2 d4 Qc1 Ba5 Qd2 Be1 Bg2 Bd5 b7 Bb6 b8Q Bb7 Bh1 Qe3+ Kf1 Qd3+ Kg2 Qe2+ Rf2 f3+ Kg3 Ncb5 Rc6 Nc7 Qdg5 Bea5 Rg2 f2 Qd2 f1Q Qdg5 Rf4 Rf2+ Ke3 Bd5 Be1 Rh5 Qg1+ Kh4 Qd3 Qge5+ Qe4 Kg5 Rf6 Rf3+ Ke2 Rh4 Qee3+ Qf4 Qd3 Nf2 Kf1 Kh5 Kg2 Nh3 Kh1 Qg3 Qe2 Qe3 Bh6 Qbf8 Bf4 Qfh6 Bg5 Qe6 Bgd2 Qee3 Bb4
2rRqQ2/k1b3Q1/n5bN/4P3/1Pr2B1n/q2Bq1QN/p4b2/N2KNbn1 w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 Kd7 h4 a5 d4 f5 d6 g5 h5 c5 e5 g4 d5 c4 h6 f4 h7 f3 b6 f2+ Kd2 c3+ Ke2 a4 b7 a3 Be3 a2 Bd2 c2 Qe1 c1Q Bf4 Nh6 Nh3 g1B Nd2 g2 Nf3 Na6 b8Q Qa3 Kd1 g3 Bd3 f1B Qf2 Rg8 h8Q Qe8 Ne1 Rg4 Qg7+ Be7 Qe3 Bf2 Rg1 Kd8 d7 Nf5 Qd6 Bf6 Qdf8 Kc7 d8N+ Kb8 d6 Nh4 Ne6 Bd8 d7 Bc7 Nd4 Ka7 d8N Bf5 Nf7 Bg6 Nh6 Rc8 Rh1 g1Q Nb3+ Nc5 Qf3 g2 Qg3 Na6 Rh2 Rg5 Na1 Rg4 Bd2 Rc4 Bf4 Bc5 Rh1 Qe3 Rh2 g1N Rd2 Qf2 Bc2 Qfe3 Rd8 Qe4 Bb1 Bf2 Bd3 Qe3
KQRrn3/1RBb2rQ/qR6/2qnp1P1/1R6/1nN3N1/q1P1b3/k1rn3N w - - 0 1 illegal: No possible last move, all moves rejected
3K2N1/2nNNq1r/Bn1BrnP1/4bRQ1/1Qq3bq/pQ6/Q2Pk1r1/7q w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 cxd5 e5 h4 gxh4 Ra3 exf4 Rb3 Qc7 axb5 Kd7 b6 Qd8 b5 Ke8 Rb4 cxb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 a5 g5 f5 b7 h5 d6 b3 b6 a4 g6 f3 d7 f2 Ke6 f4 Kf7 f3 Nh3 b2 Nf4 a3 Ne6 h3 Nc5 h4 Nc3 b1N Nd5 h2 Qc2+ Nc3 Bb2 h3 Ne7 Na6 b8Q Nc7 b7 Nf6 e4+ Kd4 e5 Ra6 e6 Bg7 Bb5 Rh7 Rf1 h1R Qb1 h2 Qa2 Rc6 Ba6 Rg1 Ba1 Qh8 d8Q+ Rd6 Nd7 h1Q Bb2 Rg2 Ba1 Ke4 Bb2 N3d5 Be5 Rb6 Bd6 Kd4 Qa8 Rc6 b8Q Nb6 Qab7 Qh4 Ng8 Ke4 e7 Qh1 e8N Qh4 Rd1 f1Q Ke7 Qc4 Rf1 Kd3 Rf2 Nca8 Rf1 f2 Nc7 Ke2 Nd5 Nc7 Q7a7 Na4 Qbb3 Nb6 Qf8 Qh1 Kd8 Qh4 Nde7 Qh1 Bg3 Re6 Bd6 Qh4 Qb7 Qh1 Qd5 Qh4 Rc1 f1Q Qg5 Qfh1 Rc3 Qf2 Rf3 Qfh4 Nh6 Qg8 Rf5 Qf7 Nhg8 Nfe8 Qf4 Be5 Q8h6 Nf6 Qhg5 Bb7 Qd4 Bf3 Qc5 Bh5 Qcb4 Bg4
2Nqq1nb/5r2/1q1N2p1/B1N2R2/r3bB1n/1PP2n2/1NBb4/1QQKb2k w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 g4 g6 f4 Nh6 Ra6 g5 Rg6 gxf4 g5 Nf7 Ra6 Nh6 g6 Ng8 g7 Nf6 Rc6 Ng8 Rg6 hxg6 h4 Kf7 b3 Kf6 h5 Ke5 h6 Ke4 f6 d5 f7 a5 h7 e5 b6 f3 b7 d3 Bd2 d4 Rh6 a4 Bc1 d2+ Kf2 a3 Bg2 d3 Bh1 a2 Ne2 a1B Rh3 Bb4 f8B Qb6+ Nd4 Nc6 b8Q Bb7 Bg2 Nce7 Qg1 d1Q Rh5 d2 Qc8 Nf5 Na3 Ra4 Nc4 Nh4 Nb2 Kf4 Qc6 e4 Rf5+ Kg4 Bh1+ Kh3 Qc7 Ba5 Bb4 Bd5 Ke3 f2 Qc5 Qg4 Ne6 f1N+ Kf2 d1Q Bf4 Qd4+ Ke1 e3 Be4 e2 Qc7 Qf3 Nc5 Nh2 Bd3 Be4 Kd2 Qbd6 Qb1 e1B+ Kc1 Qg3 Kd1 N2f3 Qc6 Kh2 Qc7 Bb6 Ba5 Kh1 Qc6 Qd8 Qc8 Nh6 g8N Q4d7 Ne7 Qg1 Qc7 Rf8 h8N Rf7 Nc8 Ng8 Qc6 Q7e8 Qc7 Rh7 Nf7 Qe3 Nfd6 Rf7 Nbc4 Be5 Nb2 Bh8 c3 Bd2 Bc2 Qd4 Qb7 Bc7 Qb5 Qb4 Qd3 Qb6 Qe3 Be1 Qec1 Bd2 Ndb7 Bce5 Nbd6 Be1 Bh6 Bf4 Bg5 Be3 Bf4 B3d2
Q3n1b1/8/q2n1P2/N1NP1q1r/1Bqb1rQr/7B/1kp4K/Rq1BB1Nb w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 f4 Kd7 Kf2 Kd6 d4 e5 g4 h5 Kg2 c5 f5 c4 g5 h3+ Kh2 h4 b7 b3 g6 e3 g7 c3 f6 b2 b6 e2 Qd3 e1Q Bg5 c2 Qe4 Qe2+ Qg2 e4 Nd2 b1Q Bh6 e3 Bg5 Na6 b8B+ Qc7 b7 Be6 Nb3 Rh5 Nf3 Nh6 g8B Nf7 Ba7 Qcc4 b8Q+ Nc7 Bb6 Ra4 Qa7 Ne8 Ba5 Qed3 Ng1 e2 Bb6 e1Q Qa8 Qee2 Bd2 Qf5 Nc5 Qa6 Bb4 Qec4 Ba7 Bh6 Qg4 Be3 Be2 Bf2 Nf3 Be3 Re1 Bf2 Ng1 Be3 Kh1 h2 Bd1 Bf2 Kg2 h1B+ Kh2 h3 Bb6 Nd8 B6a5 Nb7 Bh7 Bg8 Bg6 Qg5 Be4 Qf5 Bg2 Be3 Kg3 h2 Bh3 Be4 Rf1 h1R Be1 Rh2 Bac3 Rf2 Bb4 Rf4 Kh2 Bf3 Bec3 Bh1 Be1 Kc7 d6+ Kb6 d7 Kb5 d8N Nbd6 d5 Bd4 Bbc3 Rb4 Nc6 Ra4 Na5 Rb4 Nd3 Ka4 Nc5+ Ka3 Bcd2 Ra4 Bb4+ Ka2 Rf3 Ka1 Ra3+ Kb2 Ra1 Ra3 Qh4 Rg3 Qg5 Rgg4 Qg7 Rgh4 Qd7 Qe4 Qg4 Qf5
5B2/4n2q/Qr2Bpr1/2k1bn1n/K4PN1/1P2q2b/2nB1qr1/1QQ1N1BR w - - 0 1 legal: proof: e4 c5 Qg4 d5 Bd3 b5 Bf1 c4 Qd1 c3 bxc3 b4 Bb2 b3 axb3 Bb7 Bc1 Bc8 g4 dxe4 g5 a5 g6 a4 Qh5 a3 Qd1 hxg6 Ra2 g5 Rb2 axb2 Bh3 g4 Bg2 Ra7 Bf1 Ra8 h4 Kd7 f4 Kc6 d4 g5 Kd2 e5 h5 f6 c4 e3+ Kc3 e2 h6 e1Q+ Nd2 b1Q h7 e4 d5+ Kc5 d6 e3 d7 e2 Nh3 g3 Nf2 g2 Ng4 g1N Bh3 Qe8 d8B Qf2 Nf3 e1N Bd2 Nc6 Bc7 Nd4 Bb6+ Kc6 c5 Rb8 Kb4 Nge2 c4 Ng3 Qc1 Bd6 Ka4 Nec2 Ne1 Ne7 Qb2 Rg8 h8B Be5 Bg7 Ndf5 Bf8 Rg6 Qc1 Kd7 c6+ Kd6 c5+ Kd5 Qd1 Nh5 Ba7 Rb5 c7 Rb6+ c6 Kc5 Qc1 Bd7 c8Q Be6 Qa6 Bc8 Nh2 g4 Qd1 g3 Ng4 g2 Qc1 Qf7 c7 g1R Qb2 Qc1 Qb1 Be6 c8Q+ Bc7 Bg2 Qh7 Bd5 Rg2 Bc4 Kd4 Bd5 Be5 Qc6 Bd7 Be6 Bc8 Ba5 Qce3 Bd2 Na1 Qcc1 Nc2 Bc4 Kc5 Be6 Bd7+ Ka5 Qh4 Nf2 Kd6 Nf3 Qe4 Be3 Nfd4 Bf5 Rc6 Bd2 Kd5 Bc5 Rb6 Ne1 Kc6 Ka4 Qe2 Bd3 Bh3 Ng4 Ndf5 Bg1 Qe3 Bc4 Kc5 Be6 Qhf2
1q4bk/1N3n1B/2B1p3/7N/r1Q1PPb1/1b2nr2/1K1QnN1r/qBB1nR2 w - - 0 1 legal: proof: d4 a5 b4 f5 g4 fxg4 a4 b5 axb5 c5 Bh6 cxd4 Be3 Qb6 Bc1 Qd8 Kd2 h5 Bg2 h4 Bf1 e6 Ra3 a4 Rg3 hxg3 Ke1 Bd6 Nh3 Bc7 Ng1 Ba5 bxa5 Rh7 Bf4 Rh4 Bc1 Rh8 Kd2 Kf7 e4 d5 c4 g5 Kc2 Kg7 f4 g2 h4 g3 a6 g4 h5 d3+ Kc3 d2 a7 d4+ Kb2 a3+ Kb3 d3 c5 a2 c6 Nd7 b6 Ngf6 b7 Nd5 b8N Ne3 c7 Ne5 Nh3 g1R Na6 g2 Nc5 g3 Nc3 Bd7 c8B Be8 Nf2 Nf7 Bd7 Qb8+ Nb7 Rh7 h6+ Kh8 Qe1 d1B+ Kb2 d2 Bd3 Bb3 Ne2 d1B Bb1 Rf1 Qd2 g1N Bc6 g2 Ng3 Bf3 Nh5 Ne2 Bd7 g1N Bc6 Rg7 h7 Bg4 Bb5 Nf3 Rg1 Rd1 Rf1 Ne1 Bd7 Rg6 Bb5 Rh6 Bd7 Ne5 Ba4 Bf7 Be8 Bg8 Bg6 Nf7 Bf5 Qc7 Bg6 Rc8 a8B Qb8 Nd8 Rc7 Bc6 Ra7 Nb7 Ra4 Nf6 Nd8 Bce8 Kg7 Qa5 Rd3 Qd2 Nf5 Bd7 Rh2 h8Q+ Kf8 Nh5 Nf7 Bh7 Rf3 Qhc3 Ne3 Nf6 Kg7 Bc6 Kh8 Nh5+ Nd4 Qcc2 Ne2 Qc4 a1Q+
1Q1b4/1R1bQb1R/qNPr3q/2q4n/bP4kp/1n6/3NrQN1/2KBrQ2 w - - 0 1 illegal: No possible last move
q1Nr1br1/B7/1Pr5/b1b3nR/Kn1P1RN1/1n2p2R/1Qb1QNkq/6N1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 f4 g5 g4 gxf4 g5 h6 Be2 h5 Bg4 hxg4 b4 Kf7 h4 Kg6 h5+ Kf5 g6 a5 d6 e5 b6 c5 b7 c4 d7 f3 b5 Kf4 b6 Kg3 g7 e3 h6 c3 h7 f2+ Ke2 e4 d3 c2 Ra3 a4 Nf3 Nh6 g8N Na6 b8R Nf7 Nf6 Kg2 Ng1 g3 Ng4 Ng5 Rh5 Rg8 h8Q Nb4 Qb2 f1N Rb7 Qc7 d8N Bf5 Nc3 Nd2 Nf7 Rd8 Nd6 Nb3 Nc8 Bh7 Ke1 e2 Bf4 c1R Bd6 Qb8 Rf7 Qa8 Rf4 Bf5 Na2 Rc6 Nc3 Bg6 Bb8 Bh7 Ra2 a3 Ba7 Bf5 Ra1 a2 Qdd2 Qb8 Nd1 Qd6 Rc1 a1Q Ndf2 Qa6 Qd1 Qb7 Rc3 Qa8 Rh8 Qh6 Qdd2 Qh2 Rh5 Bh7 Qe3 Nd4 Kd2 e1B+ Kd1 Nb3 Qee2 Nd2 Ngh3 Na6 Qf3+ Kf1 Kc2 g2 Qe3 g1B Qe2+ Kg2 Nh1+ Bgf2 Ng1 Bg6 Qd1 Be3 Nhf2 Bec5 d4 Bh7 Rch3 e3+ Kc3 Bc2 Qe2 Nb3+ Kc4 Bd2 Kb5 Ba5 Ka4 Nb4
Qnkq1Q2/n2qnQ2/PrrQr3/1N5B/1K1N4/3bR1p1/Bb4P1/1rB3q1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 e5 cxd5 exf4 Ra3 Bd6 hxg5 Bf8 Rg3 fxg3 e4 Kd7 d4 b5 Kd2 c5 d6 h5 d5 f5 a5 b3 Kc3 h4 a6 h3 e5 b2 g6 c4 g7 b4+ Kc2 h2 Qd4 b3+ Kc3 f4 Qd2 f3 Qd1 f2 Bd3 f1Q Bh7 Qf7 Ne2 Ne7 g8Q Bg7 Na3 b1N+ Kb4 b2 Nb5 c3 Ned4 c2 Re1 h1Q Re3 Na3 Bf5+ Qe6 Qf7 Rh6 Bg4 Ra7 Bh5 Qg1 Qd2 Bb7 Qdf2 Qg4 e6+ Kc8 Qf1 Bc6 Qf8 Rb7 Q1f7 Ng8 e7 Re6 e8B Ne7 Qf6 Rb6 Bef7 Be8 Bg8 Bg6 Q6f7 b1R+ Kc5 Nbc6 d7+ Kb8 d6 Bd3 Nf3 Bb2 Nfd4 Na7 Kb4 Nc4 Q8g7 Na5 Qgf8 Qc8 d8Q N5c6+ Ka4 Qf5 d7 Qd5 Qde8 Qd6 d8Q Qd7 Bd2 c1R Qc7+ Ka8 Qd6 Nb8 Kb4 Rcc6 Bc1 Qcd8 Qh7 Re5 Ba2 Re6 Qhf7 Q8c7 Qc8 Qcd8 Qcc7 Rc4+ Kb3 Nbc6 Qd5 Rc2 Qce5 Rc5 Qee4 Kb8 Qd6+ Kc8 Ka4 Nb8 Qa8 Rc7 Kb4 Rcc6
1Q1br3/nQr2QRb/P6q/1nNK1b2/3P3b/1nNBR3/3rNp2/1qN4k w - - 0 1 legal: proof: f4 e5 g4 a5 c4 d5 cxd5 h6 b4 axb4 Bb2 f5 gxf5 exf4 Bf6 Nd7 Be7 Nb8 Bg5 hxg5 Kf2 Kf7 Kf3 Kf6 Ke4 c5 h4 b5 a4 g4 d4 g5 e3 f3 a5 c4 d6 b3 d7 b4 h5 g3 a6 b2 h6 c3 h7 c2 Bd3 c1N Rh5 g2 Bc2 g4 Qd2 g3 Rh1 Kg5 f6 Kg4 f7 b3 Rh6 Nf6+ Ke5 Ne8 e4 Be7 f8N Qb6 d8N Bf5 Ng6 Nd6 Nf4 Re8 h8Q Nc6+ Kd5 Nb5 e5 Ra7 e6 Rc7 Nc3 b1Q Nf7 b2 Rh3 Nca7 Ng5 Bd8 e7 Qh6 Nge4 Nb3 Nge2 g1B Nc1 g2 Nc5 Bf2 Nfe2 g1R Bd3 Bh4 Ra3 f2 Re3 Rh1 Qf8 Rg1 Qf7 Rd1 Qe1 Rd2 Qh1 Bg3 Qe4+ Kh3 Ra1 Kh2 Ra5 Rf8 e8Q Bgh4 Q4e7 Kh1 Q7d7 Bde7 Qb8 Re8 Qc6 Bd8 Qcb7 Qa1 Ra3 b1B Rg3 Bc2 Rg7 Qb1 Ra4 Nd6 Rb4 Bh7 Rb6 Ndb5 Re6 Bf5 Re3 Bh7 Bc4 Bcg6 Bd3 Bf5
B4rQr/1n2nP1R/1q2PnK1/R1Q5/R1NQq1N1/R2b1q2/2r4p/2b1k2r w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 e5 d4 f6 Bf4 exd4 e5 Ne7 e6 Ng8 Be5 fxe5 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 c5 g4 a5 f3 h5 b6 d3 b7 c4 b5 a4 b6 d2 d6 a3 d7 h3 f4+ Kh4 Kf5 Kg3 g5 Kf2 g6 c3 g7 a2 Kg6 e4 f5 c2 f6 c1R f7 h2 Bh3 e3 Qb3 d1Q Nf3 e2 Bg4 e1Q Qc3 h4 Qa3 h3 Ne5 Na6 b8Q Nf6 g8Q Nc5 b7 Qb6 d8R Bh6 Qb2+ Rc2 Nd2 Qf3 Ndc4 Bc1 Qa7 Qee4+ Bf5 Ke2 b8R Ba6 Rd4 Nb7 Ng4 Bb5 Rbd8 Ba6 R8d5 Rf8 Ra5 Bb5 Nce3 Bd3 Rda4 Kd2 Nc4+ Ke2 Rb1 a1N Qd4 Nb3 Qc5 Nd4 Rba1 Nd6 R1a3 Nb7 Rg1 h1R Rf1 Qef4 Be4 Nf5 Rf2+ Ke1 Rh2 Q4e3 Bd5 Qee4 Qd4 Qc6 Qac5 Qb6 Bc6 Nd8 Ba8 Nb7 Rg2 h2 Rg3 Nd5 Rh3 Nf6 Rh7 Ne7+
1r1N4/N3Pn1Q/4B1br/1r6/b1R2b2/r1p2Qn1/1Rq1nNPK/1Q1Nkq2 w - - 0 1 legal: proof: c4 b5 d4 a5 b4 g5 h4 gxh4 f4 e6 f5 Bd6 Bh6 Be5 dxe5 Ba6 Bf8 Bc8 fxe6 bxc4 b5 Nf6 Bd6 Ng8 Bb4 axb4 Kf2 Ke7 a4 h5 e4 f5 b6 c5 b7 d5 a5 b3 a6 f4 a7 f3 Qd2 d4 Qc3 h3 Kg3 h2 Qc1 h4+ Kh3 c3 Ra2 c4 Be2 c2 Bf1 c3 Qd2 c1B Qf4 f2 Bc4 f1Q Ra4 b2 Nd2 b1R Qf3 Nc6 b8Q d3 Ba2 Qd4 Nc4 d2 Ne3 d1B Rc4 Ba4 Nd1 Qd2 Qb6 Rb8 a8Q Rb5 Qab7+ Bd7 Q7c7 Nd4 Bb3 Ne2 Ba2 Ra5 Qb1 Rh5 Qa7 Nh6 Qab7 Rf5 Qc7 Ke8 e7 Kf7 e8N Ke6 Nd6 Qc2 Nb5 Be8 Qh7 Bf4 Na7 Bh5 Bb3 Nf7 Ba2 Kd7 e6+ Kd6 e7 Rfb5 e8N+ Ke5 Nd6 Ra6 Nb7 Rh6 Rc5+ Kd4 Nd8 Ra6 Be6 Raa5 Ne3 Kd3 e5+ Kd2 Nd1 Ke1 Rc4 Rb3 Bd7 Ra3 e6 Rc5 e7 Rcb5 Be6 Bg6 Kg4 h3 Kh4 Nc1 Ne2 Bh5 Ng3 Ne2 Rg1 h1N Ne4 h2 Kh3 Nhg3 Nef2 Bg6 Kh4 h1R+ Kg4 Rhh5 Rh1 Rhd5 Kh3 Rd6 Kh2 Bh5 Qb3 Nc1 Ne3 Kd2 Bc8 Rh6 Be6 Nce2 Qb4 Qa1 Rb1 Nh8 Rb3 Qf1 Ned1 Nf7 Rb1 Ke1 Qb2 Rf5 Qc1 Ra5 Rb2 Rab5 Qb1 Bg6+
1r1r1Q2/1N4bB/2k2P1N/2B3qb/4N1nb/K1NPr3/1Qbp2bn/1R2b1Q1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 c4 d5 d3 dxc4 Qg4 c3 Qa4 Nc6 Qd1 Nb8 b4 Nc6 Ke2 Nb8 Ra2 Nf6 Rc2 Ng8 Rd2 cxd2 f4 Kd7 g4 c5 g5 h5 f6 a5 g6 e5 b6 a4 b7 h3 b5 e4 g7 h4 f7 e3 f5 h2 b6 c4 Nh3 c3 Qe1 c2 Bb2 c1R Ba3 Kc6 Bb2 a3 Ng1 h3 Be5 a2 Bd4 a1B Nf3 Bd7 Bc5 Nf6 g8N Bg7 f8Q Ng4 Ng5 Baf6 Ne4 Bh4 Nh6 Qg5 f6 Rd1 Rg1 h1B Bg2 h2 Nbc3 Rda1 Bh3 Bg2 Rf1 R1a5 Kd1 h1B Kc2 e2 Kb3 Nh2 Bf5 Rg8 Qg3 e1B Bh7 Be8 Kb4 Nd7 b8Q Ne5 b7 Bh5 Qf2 Neg4 Qg1 R5a6 Qe5 Rd8 b8N+ Kb7 Kb3 Re6 Nd7 Kc6 Ka3 Bf3 Qed4 Bd1 Qb4 Bg2 Qb2 Beg3 Re1 Bc2 Rb1 Rh8 Nb6 Be1 Nc4 Ree8 Ncd6 Rb8 Nb7 Re7 Qf7 Rhd8 Qf8 Re5 Ned6 Re2 Nde4 Re3
r1r5/N1b1P1rr/2n3rP/3b3K/3BQNQq/1kn3b1/1b1pQBNQ/R7 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 e5 b4 b5 axb5 h5 f4 Qg5 Ra6 Qd8 Rf6 g6 Bh3 g5 fxe5 Rh6 Rf4 gxf4 g5 Rh8 Bg4 hxg4 Kf2 Ke7 e4 Ke6 h4 a5 c4 d5 h5 f5 h6 f3 Kg3 d3 Kh4 f4 c5 d2 c6 a4 c7 d4 b6 a3 b5 a2 b7 a1B b6 f2 Kh5 f1R g6 d3 g7 f3 Nc3 g3 Na4 g2 Qe1 d1R Ne2 g1B Nac3 f2 Bb2 d2 Nd5 Bh2 Ne3 Nc6 b8B Rh7 b7 Rg1 Ba7 f1R b8Q Bg3 Ng2 Bb7 c8N Rc1 Bbd4 Nge7 g8Q+ Rff7 Bac5 Bg7 Na7 Bb2 Qd1 Nd5 Nef4+ Kd7 Qf3 Qf6 Qe2 Nc3 Bf2 Bh8 Bcd4 Rfg7 Qgc8+ Ke7 Qcg4 Rg6 e6 Rc2 Qc8 Kd6 e7 Bg7 e8Q Bf8 Ne6 Be7 e5+ Kd5 Qh4 Bd8 Qh2 Bc7 Qe4+ Kc4 Nef4 Kb3 e6 Nb8 e7 Bd5 Qg4 Nc6 Qee2 Rgg7 Qeg6 Nb1 Ne6 Bd8 Q6g5 Bh4 Q5f5 Na5 Qge4 Rcc8 Qff3+ Nc3 Nef4 Nc6 Ne3 R1g6 Qg4 Bc7 Neg2 Bg3 Ra1 Qh4+
1nnr3r/1N2PN1b/NQQRb2P/1r2Q3/k1p1Q3/6r1/Bq2Rr2/2bKb3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 Kd7 d4 f5 h4 a5 b6 c5 b4 g5 d6 Kc6 d7 g2 h5 g3 e5 g4 e6 a4 h6 a3 b7 f4 b5+ Kb6 d5 Ka5 d6 a2 b6 f3 Qc1 f2+ Kd1 Qf6 d8N Qb2 d7 Ne7 Rh2 Ka4 Nh3 g1B Nd2 g2 Ng5 g3 Bc4 f1B Nb3 Bf2 Ngf7 g1R Qe3 g2 Qe4 Be1 Rc1 Nbc6 b8Q a1R b7 Rb1 Qc7 Bd3 b8Q Rf1 Nb7 g1R d8Q Rg3 Re2 Rf2 Qdd7 Bg7 Qb6 Bd4 Qdd5 Be3 Qbe5 Nb8 Qdd6 Bd7 Qdc7 Nc8 e7 Be6 Qcd6 Ra5 Qdc6+ Rb5 Bd5+ Bd4 Bc4 Ra1 Rb1 Be3 Rc1 Bb1 Rcc2 Bc1 Rcd2 Ra2 Rd6 Bd3 N3a5 Ra3 Ba2+ c4 Nb3 Bb1 Nfd8 Rgg8 Nf7 Rd8 N3c5+ Kb4 Qg6 Rg3 Na6+ Ka4 Qg4 Bg6 Qge4 Bh7
6Qb/1b1k2n1/R2Nr2r/R1nQP3/1p2RP1n/b4rr1/bB1K4/qN2R2N w - - 0 1 legal: proof: g4 d5 e4 a5 c4 e5 b4 h5 gxh5 axb4 d4 f6 Bd3 f5 cxd5 exd4 e5 Kf7 Bc2 Ke8 Be4 fxe4 f4 c5 h4 g5 a4 b5 d6 e3 a5 g4 a6 d3 h6 b3 a7 d2+ Ke2 c4 h5 c3 h7 g3 h6 b4 Na3 c2 Kd3 b2 Rh3 b1B Rh2 e2 Nc4 e1N+ Ke2 g2 Ba3 c1B Nh3 g1R Rh1 Na6 Nf2 Qa5 Bb2 Nf3 Na3 Ba2 Nb1 Rg3 Re1 Ne7 Nh1 Bg7 d7+ Kd8 Qb3 Nh4 Qd5 Nef5 Kd1 Rb8 a8R Nc5 Ra6 Bb7 Kc2 Ke7 d8R d1R Rdd6 Rhe8 h8N Rdd3 h7 Rdf3 Nf7 Bh8 Rd8 Ng7 Nd6 Rc8 Re4 Rc6 Rda8 Qa3 Ra5 Kd7 R8a6 Re6 Kd1 Ne8 Ke1 Bf6 h8Q Ng7 Qg8 Qc3+ Ke2 Qd4 Bc3 Ba3 Bb2 Qc3 Nd2 Rb6 Rg1 Qc1 Re1 Qa1 Nb1 Nh5 Qg5 Bh8 Qg8 Ng7 Kd2 Rh6 Nf5+ Rbd6 Rd4 Kc7 Rde4 Rde6 Nd6 Kd7
8/1nB2Q1r/1bbq1PQp/1P2B2B/b1Rr1n1k/1B3b1N/1RKn2n1/1r5R w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f5 Na3 fxe4 Nc2 Nh6 axb5 Nc6 b6 Nb8 b5 Ng8 Nb4 axb4 f4 Kf7 d4 Kg6 Kd2 e5 g4 c5 d6 b3 d5 h6 b7 e3+ Kd3 e4+ Kc3 e2 d7 e1N g5 b2 d6 b1B Ra3 c4 Nh3 e3 Qa4 Kh5 g6 e2 g7 Nf6 g8B Nc6 b8R Bb7 f5 Nd5+ Kd2 Na5 f6 Bc6 Re3 Nb7 Rb3 Bc2 Bh7 Nf4 Bb2 c3+ Kc1 Nf3 Qc4 e1N Be4 Nd2 Rc8 Rh7 Bd5 Ra4 Rc7 Qb8 d8B Neg2 d7 Bc5 Rb4 Kg4 Be2+ Kg3 Qa2 Bb6 Bb3 Bd1 Bh5 c2 Rc8 Qd6 Be5 Bcf3 Kb2 c1R Rcc4 Rb1+ Kc3 Bc2 Bc7 Bc6 d8Q Bd1 Nf2 h3 Qg8+ Kh4 Qg6 h2 Nh3 Bcf3 Bc2 Bc6 Rb2 Rb4 Bb3 Bc2 Rc5 Rd4 Rc4 Bd1 Qa8 Bc2 Qf8 Bf3 Qff7 Bcd1 Ba2 Ba4 Bb3 Bc6 Rd1 h1B Kc2 Ne3+ Kc3 Bhd5 Rh1 Neg2 Kc2 Bf3
2n2Rrn/1q1BN1r1/b1rB2P1/rN1Q2nK/4q2B/2bNk1p1/1P2n1QN/8 w - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 g5 f4 b4 g4 gxh4 a3 e5 axb4 exf4 b5 Bc5 Ra3 Bf8 Rg3 fxg3 e4 Kd7 Ke2 Kd6 Kf3 Ke5 d3 Kd4 b6 h5 g5 a5 e5 c5 e6 f5 d6 f4 b7 c4 d7 c3 g6 c2 e7 a4 e8Q a3 Nc3 a2 Nh3 a1R Be2 R1a7 Nf2 h3 Re1 h2 Na2 h1N Nh3 h4 Kg4 f3 Bg5 c1N Ng1 f2 Rf1 h3 Nb4 h2 Bh4 Nh6+ Kh5 Bg7 Bg4 Qc7 d8N Nc6 b8B Ne2 Bd7 Ba6 Nf7 Qb7 Nd6 Ne7 Nb5+ Ke3 d4 Rg8 d5 Nf7 d6 Bc3 Nd3 Nh8 Nf3 Rg7 Qf7 Nc8 Qc2 Qe4 Qd5 Rg8 Be6 Rag7 d7 Ra7 d8N Rac7 Re1 f1R Nc6 Nf2 Bd7 h1Q Nh2 Nh3 Ne7 Rc6 Bd6 Ng5 Rc1 Rg1 Rf1 Qhg2 Rf8 Ra1 Qd1 Ra5 Qf1 Qb4 Qh1 Qge4 Qg2 Qb3 Na3 Qb8 Nb5 Qb7
2r2B1b/2N4K/QBRQ1Pbb/Q2b1nqq/1NQ1n2n/3P1p2/B1r1k3/4n3 w - - 0 1 legal: proof: f4 d5 e4 f5 c4 g5 b4 b5 a4 Bh6 Ra3 Bf8 axb5 fxe4 h4 gxh4 Rf3 exf3 cxd5 Bh3 Qb3 Bd7 Qd1 Bc8 Kf2 Kf7 Ke3 Kf6 Ke4 h5 g4 a5 b6 e5 f5 Kg5 d6 c5 b7 a4 b5 c4 d7 h3 b6 c3 Qb3 c2 Be2 h4 Qc3 h2 Qa5 h3 Bc4 a3 Bd5 a2 Qb5 a1B Qc4 Na6 b8Q Qe8 d8Q+ Ne7 b7 Be6 Qe2 Bh6 Na3 Qh5 Qa5 Rc8 Qd6 Ng6 b8B Nh4 Nb5 Bb2 Ba2 Bd5+ Ke3 e4 Nc7 Be5 Ba7 Nc5 Qea6 Bh8 Ba3 c1Q f6 Rab8 Ne2 Rb2 Rg1 h1N Nf4 h2 Nd3 Rc2 Nb4 Ng3 Bb6 h1B Kd4 e3 Ke5 e2 d3 e1N Rf1 Kg6+ g5 Nce4 Rf2 Bg2 Re2 Rc4 Rc2 Bh3 Rc3 Ngf5 Rc2 Rd4 Rc6 Qc5 Kf4 Rc4 Ke5 Rc2 Kf4 Qg4+ Ke5 Kh5 g6 Qg5 g7 Kg4 g8Q Kg3 Qge6 Kf2 Qf7 Ke2 Qg8 Bb3+ Qgd5 Qcg1 Qdc4 Qh1 Ke6 Qh2 Kf7 Qe5 Ne8 Qh5+ Kg8 Qf4 Kh7 Qfg5 Qcc5 Bd5 Nc7 Ne7 Qcc4 Bd7 Bb2 Nef5 B2d4 B7e6 Bdc5 Bd7 Qf4 B7e6 Bf8 Bf7 Qd6 Bg6+
1NK5/1N2B1q1/r3p2r/NR1BbQ2/q2P4/r1nrn3/N1bB2P1/b2Qb1k1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 f4 h3 f5 h2 d6 e3 d3 e2 f6 e1B f7 b3 d7 h4 Ke6 Kd4 b7 c5 b6 h3 Qd2 b2 Nc3 b1Q Qa2 c4 Bf4 Bg7 f8N Nc6 b8N Qb2 b7 Ra3 Nd1 c3 Qa1 c2 Ng6 c1B Nh4 Ne5 Ng6 Qe8 Nc3 Rh6 Bd2 Nf6 Na2 Nc4 Ne5 Ne3 Nf7 Qc3 Nd6 Bb2 Qb1 Ba1 Qd1 Ra6 Be2 Qb2 Bh5 Ne4+ Bg6 Nc3 Nf3+ Kc5 Rf1 h1R Ne5 Kd4 Nc4 h2 Na5 Be5 Rf5 Rf1 Rg5 h1R Rf5 R6h3 Bf7 Rff3 Rg5 Bh8 Rc5 Be5 Rb5 Rhg3 Bg8 Rh2 Bf7 Rh6+ Bg6 Nc4 Rc5 Ne4 Qc1 Rh2 Qd1 Bf6 Bf7 Rh6 Re5 Qg8 Rc5 Qb3 Rh5 Qg7 Rf5 Rb6 Na6 Qa4 b8Q Bb7 d8B Rgh3 Rb5 Be5+ Kd7 Rhg3 Qa8 e6 Nb8 Ra6 Be7 Re3 Bg6 Ref3 Bc3+ Ke3 d4 Kf2 Bd2 Kg1 Bh5 Ra3 Bf3 Bc6+ Kc8 Nc3 Be4 Be8 Bf3 Bh5 Qe4 Bg6 Ndb7 Bf5 Qg4 Bc2 Bd5 Rd3 Qf5 Ne3
r1b2K2/1n5r/3p3n/Q3B1nP/1q1nNb1R/2R3RR/P1Q1r2r/k2qQ1N1 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 h5 exf5 c5 b4 axb4 Bh3 cxd4 fxg5 Qb6 g6 Qa5 g5 Qd8 Bg4 hxg4 Kf2 b5 Kg3 e5 h4 Ke7 c4 Kd6 h5 Kc5 Kh4 d3 f6 Kd4 g7 b3 g6 g3 Kg5 d6 c5 e4 c6 e3 c7 e2 Nc3 e1R Bd2 b4 Qc1 g2 Bf4 b2 Bd2 b1N Na4 b3 Bf4 d2 Qa3 d1Q Nc5 Kc3 Qa4 Kb2 Be5+ Nc3 Rh4 Rh7 Rc1 Re2 Ne4 Nc6 Qa5 Nh6 g8Q Nd4 g7 Na4 Kg6 Nc5 f7 Nb7 Rc3 Ka1 Rch3 Be7 f8Q b2 Qe6 b1R g8R Rbb2 Qf2 Bg5 Qef5 Bd2 Qe1 Bf4 Rg7 Qg8 Kf6 Qe8 Rgg3 Qa4 Qg6 Qb4 Qf5 Be6 c8R Bd7 Rcc3 Bc8 Rg7 Rbc2 Ke7 Rb2 Kf8 Rbc2 Nf3 g1N Rgg3 Rcd2 Neg5 Rh2 Qc2 Rde2 Ne4 Rh1 Rh2 Nh3 Ng1 Ng5 R2h3 Rhh2
6r1/NQ2rN2/Pq2P1Q1/1Nb3K1/b2n2b1/1pbQ1B2/1kB4Q/1qR1r1nr w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 d5 cxd5 g5 fxe5 h6 a4 Be7 Ra3 Nc6 Rf3 Nb8 Rf4 Bf8 Bb2 Ra7 Bd4 Ra8 Bf2 Qd6 Bh4 gxf4 g5 Qe7 g6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 b5 Kg4 f5+ Kf3 c5 h4 g4+ Kf2 c4 e4 b3 d4 f3 Kg3 b2 Kf4 g3 e6+ Kd6 a5 g2 e7 f2 e8B b4 g7 b3 a6 c3 h5 c2 h6 c1R h7 Qb6 Ne2 g1B Na3 b1Q Bh5 Nc6 Nc3 Nf6 g8Q Bg7 Kg5 f4 Bf3 Nd7 Bd3 f1R Bc2 Ra7 Qd3 Rce1 Qf7 Rf8 h8Q Nde5 Qh2 Rg8 Qg6+ Be6 Qb5 Re7 Qb4+ Qc5 Qb7 Qb6 Be2 f3 Bed1 f2 Bf3 Qc7 Ncb5+ Kd7 d6 Bg4 d5 Nd4 Na7 Bh8 Bg2 Nef3+ Kf4 Bg7 e5 Bh8 N3b5 Bf6 Qb8 Qb6 Qa8 Rd1 Qb8 Rfe1 Qa8 f1B Qb7+ Kd8 e6 Be2 Nc7 Bb5 d7 Ba4 Ncb5 Bf2 Rf1 Ng1 Bf3 Be5+ Kg5 Rc1 Nd6 Bh8 Qa8+ Kc7 d8N Qc5 N8f7 Kb6 Qc6+ Ka5 Qb7 Qb6 Ndb5 Kb4 d6 Bg7 d7 Kc4 Nbd6+ Kc3 d8Q Kb2 Qdd7 Nde2 Ndb5 Bc5 Qd1 Bc3 Qd3 Nd4 Rf2 Rf1 Rd2 Rce1 Rd1 Nge2 Rc1 Rh1 Qa8 Ng1 Qc6 Qd8 Qb7 Qb6
1N1R1bQ1/1Qq2nP1/2qR1R2/k1b4r/q2P4/5bQQ/1B2p2B/2qnrb1K w - - 0 1 illegal: No possible last move, all moves rejected
1qNrb2B/1N1R1pP1/2n1b1n1/R1QN2QR/4K2P/q1rb2b1/qqk5/3N4 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 b5 axb5 f3 Qa4 h6 Qf4 gxf4 g5 h5 Bh3 Bg7 Be6 Bf8 Bg4 hxg4 Kf2 Ke7 b4 Kd6 e4 Ke5 d4+ Kd6 g6 a5 b6 c5 b7 a4 b5 c4 b6 a3 Bb2 c3 Ne2 c2 Nec3 c1Q Nd1 a2 Nbc3 Nc6 b8R Qe7 b7 Ra3 h4 Be6 e5+ Kd7 d6 g3+ Ke1 f2+ Ke2 f1B+ Kf3 g2 d5 g1Q Ke4 f3 Rh3 f2 Rd3 Qh2 Rc8 Rh7 b8Q Qd2 Qb4 Rh8 Qc5 Be2 Ra8 f1B Ra5 Qc1 Rb1 a1Q Rd2 Qa2 Ba1 Bc4 Rbb5 Qcb2 Rd4 Kc8 d7+ Kc7 d8N Qd6 Rd3 Ne7 Nb7 Bb3 Rd4 Ba4 Rd3 Kd7 Rd4 Qb8 d6 Qh3 Nd5 Rc3 Rd3 Bh6 Rd2 Bf4 Rd4 Ke8 d7+ Kf8 d8Q+ Kg7 Rd2 Bg3 Qg8+ Kh6 Qg7+ Kh5 Qf6 Kg4 Rd3 Bd7 e6 Rd8 Qg7 Be8 Rd2 Bb3 Rd3 Qaa3 Qf6 Qhh2 Qg5+ Kh3 Rd4 Kg2 Rd2+ Be2 Rd3 Kf1 Rd4 Ng8 e7 Ke1 Rd3 Qba2 Rd2 Bec4 Rd4 Qhb2 Rd2 Bd7 e8N Nge7 Ned6 Be8 Nc8 Be2 N5e3 Be6 Rd7 Bf1 Nd5 Be2 Qf6 Kd2 Qf5 Qbb3 Qg5+ Kc2 Bb2 Rc4+ Bd4 Rc3 Bh8 Qbb2 g7 Bd3+ Kf3 Be5 Nf6 Bef5 Qg2+ Kc1 Qd6 Bh2 Rd5 Qd2 Qc5 Be6 Rh5 Qdb2 Nd5 Ng6 Qg5+ Kc2 Ke3 Bg3 Kf3 Ba6+ Ke4 Bd3+
K1n1k1n1/2Qbpr2/N1b1qn2/b1P5/1Bb3B1/3QPn1r/QN1Q3q/2BR4 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 b5 f4 c5 f5 cxd4 a4 axb4 axb5 g6 Ra3 Qb6 Rg3 Qc7 fxg6 Qb6 g5 Qd8 Rg4 hxg4 Kf2 f5 h4 d5 c4 b3 g7 d3 Ke3 g3 Kd4 d2 Kc5 f4 g6 b2 e3 f3 b6 f2 h5 g2 b7 d4 h6 d3 h7 Qd7 Kb6 Nc6 b8Q Qh3 c5 Qe6 Na3 b1N Nc2 Nc3 Be2 f1B Nh3 g1N Nf2 Ne4 Bg4 Nf3 Nb4 Nef6 Qc7 Bd7 Kb7 Na7 Na6 Nc8 Qe1 d1Q Qd2 Qc2 Nd1 Qca2 Nb2 Be2 Rd1 Bf1 Qc2 d2 Qc3 Bc4 Qd3 Ra7+ Kb8 Rb7+ Ka8 Rb4 Rf1 d1B Qd2 Bde2 Rd1 Bcb5 Qd3 Rf4 Qd2 Nh6 g8Q Bec4 g7 Bbc6+ Qb7 Qe4 Qgd5 Qe6 g8Q Rf5 Q5d3 Rf4 Qg5 Bg7 Qh4 Nhg8 Qhf2 Nd5 Qh2 Rf7 Qc7 Bc3 Qa5 B6b5 Qbc7 Ndf6 Qa3 Qa1 Qa2 Ba5 Na4 Qae5 Nb2 Nh6 Qb6 Qh2 Qc7 Rhf8 h8B Nhg8 Bg7 Ba4 Bh8 Rh7 Bg7 Rf7 Bh8 Rh3 Bg7 Nh7 Bc3 Nhf6 Bb4 Bac6+
Q1qn2n1/R2Pp1n1/b1Br2Nk/4b3/1r3nP1/RK1R4/2Qr1rNq/1N4N1 w - - 0 1 legal: proof: f4 f5 c4 h5 e4 fxe4 b3 g5 a4 b5 axb5 h4 Bb2 d6 Be5 d5 cxd5 Nf6 g4 Ng8 Bd4 gxf4 Bf2 Kf7 Bg3 hxg3 Bd3 Ke8 Bc4 Ba6 Bf1 Bc8 d4 Kf7 Kd2 Kg6 Kc2 c5 h4 a5 h5+ Kh6 b6 f3 b4 c4 b5 f2 b7 c3 d6 e3 d7 e2 d5 e1N+ Kb3 c2 d6 c1N+ Ka3 a4 b6 g2 Ne2 g1Q Kb2 Nb3 Rh3 Nd4 Bg2 f1R Qc2 Rf2 Bc6 Bg7 Raa3 Be5 Rhd3 Qh2 Ng1 Nf5+ Ka2 Qf8 d8N Ng7 d7 Ra6 Ne6 Ng2 Nf4 Qe8 Be4 Nc6 b8Q Rh7 b7 Nd8 Qa8 Rd6 b8R Ba6 Rb7 Rh8 Ra7 Qf8 Nd5 Nf4 Ne3 Qe8 Bc6 Rd2 Rac3 a3 Kb3 a2 Ng2 a1R Qc1 Kh7 h6 Ra4 Qc2 Kg6 h7 Kh6 Rc5 Re4 Ra5 Ree2 Ra3 Rf2 Nf3 Nde6 Ng1 Qc8 Qc3 Nd8 Qc4 Nf6 Qc2 Rf8 h8N Ng8 Ng6 Rff6 Qc5 Rd4 Qc4 Rfd6 Qc2 Rb4+
q3rbq1/nQ3R1Q/1Kqpr1Q1/3kbN1N/4q2P/P7/R1Qr2R1/1b2Bq2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 a5 e4 axb4 e5 f5 exf6 Rh6 g5 Nc6 Bh3 Rh8 Bg4 hxg4 f5 Qc7 Qe2 Kd8 Qf3 Ne5 Qd1 Nf7 g6 Qa5 gxf7 Kc7 Qd3 Kc6 Qd1 Qd8 Kd2 b5 Kd3 e5 c4 g5 h4 d6 c5 g3 a3 b3 Qe1 b2 Qf2 e4+ Kd2 g2 Qg3 g4 Rh2 e3+ Kd3 b4 Kc4 d3 Nd2 b1Q Ngf3 g1B Rg2 e2 Qh2 e1Q Nf1 g3 Bd2 b3 Ra2 Qee8 Be1 d2 Kb4 d1Q Nd4+ Kd5 c6 b2 Kb5 Rh6 Qh1 Qee4 c7 Ne7 Kb6 Qdf3 Qh2 Qd7 Qh1 Ba6 c8Q Bh2 Qc2 Nc6 Qg1 Re8 Qh1 Bg7 f8Q Bd3 f7 Na7 Qg8 Bf8 Qh7 Rhe6 f6 Qc1 Nf5 b1R+ Rb2 Ra1 Ra2 Qcf4 Qg1 Rd1 Qh1 Rd2 Qg1 Bg7 f8Q Qg5 Qe7 Bf8 f7 Qg8 Ra1 Qc8 Ra2 Qa8 Qb7+ Ke5 Re2 g2 N1g3 Qf1 Nh5 Bg3 Qe3 g1Q Rg2 Qh1 Qg5 Bh2 Qgg6 Bf4 Qa6 Kd5 Qac8 Be5 Qa6 Bfg7 f8R Bh6 Rf7 Bf8 Qcc8 Bb1 Qc2 Qh3 Qac8 Qc3 Qb7+ Qc6+
b1q1N3/br4P1/b4pnB/1k1P1N2/2R1Q1B1/1B2N1Qq/2rq1bK1/1r2B1b1 w - - 0 1 legal: proof: g4 d5 c4 dxc4 f4 b5 h4 e5 b4 exf4 a4 g5 axb5 Nd7 h5 Ne5 Ra6 Ng6 hxg6 f3 Rf6 Qd4 Rf4 gxf4 g5 Qd8 Kf2 Kd7 e4 h5 d4 c5 g7 a5 g6 f6 b6 Kc6 b7 h4 b8N+ Kb5 e5 h3 e6 h2 e7 a4 Qd2 a3 Qe1 a2 Nc6 a1B e8Q Ra7 Q8e5 Ba6 Na5 Rb7 Be2 Qc8 Qe4 Ne7 Kf1 f2 Kg2 f1R Bg4 c3 g8B c4 g7 c2 Nf3 c3 Nbd2 Ng6 Bb3 Bc5 Ndc4 Ba7 Qg3 Rd8 Be3 c1Q Nh4 c2 Nf5 Qd2+ Bf2 c1B Nce3 Rdd7 Nac4 Rdc7 Rg1 Bcb2 Rh1 Rb1 Ncd6+ Kb6 b5 Rc2 Rc1 h1B+ Kh3 f3 Ne8 Bc3 Be1 f2 Kh2 Ka5 b6 Kb5 Kh3 Bb4 Kh2 Bc5 Kh3 Rf7 b7 Bg2+ Kh2 f1Q b8B Rb7 Bf4 Bc3 Bg5 Ba5 Bh6 Ba5b6 Qef3 Qfd3 Qe2 Bc6 d5 Bd4 Kg2 Bdc5 Nd1 Bf2 Qe4 Bg1+ Be2 Bbf2 Nde3 Rf7 Bg4 Ba8 Qh4 Rb7 Qg3 Rcb2 Rc6 Rc2 Rc4 Q3e2 Bh3 Qh5 Bg4 Qh3+
b6N/1rq1P1K1/Q2nq3/Q3b1QB/1P1R2q1/1q1R4/n1n2N1p/Q1bqkN2 w - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 a4 c5 axb5 cxd4 g5 e4 Bf4 e3 h5 Ra6 Be5 Rg6 Bf6 exf2+ Kd2 gxf6 hxg6 f5 Qe1 f4 Qc1 Bb7 Qd1 Bc8 Kd3 Ke7 Ke4 Kd6 Kf5 Kd5 e3 h5 b3 f3 c3 d3 b6 h4 g7 d2 g6 h3 b7 a4 Be2 f1N Qc2 d1Q Bd3 f2 Ne2 h2 Rg1 a3 Ba6 a2 Rg5 Ba3 Rg4 Nf6 g8Q Nc6 b8Q Bc1 g7 Rh7 Ng1 Bb7 Be2 Ba8 Qa7 Ne4 Nd2 Qc7 Qb1 Nb4 Nh3 Nd6+ Kf6 Qe1 Bd1 Qe2 Re4 Qg4 Qa3 Kc5 Rd4 Kb5 e4 Ne3 e5 f1Q+ Qf5 Qe1 Nf1 Nec2 c4+ Kc5 Rb1 a1B Nf2 Bab2 Qa1 Na2 e6+ Kb4 c5+ Kc3 Qc8 Qee4 g8Q Qd5 b4 Qb3 Qfg5 Rg7 Ke5 f5 Kf6 f4 c6 f3 Qa5 Re7 Qgg5 Rh7 Nh1 f2 Qca6 Rg7 Ne3 f1Q+ Nf2 Qe1 Nf1 Nc4 Bf3 d5 Be2 Rd7 e7 Nd6 Bf3 Qee6+ Kg7 Qc8 Be2 Rb7 c7 Qcd7 c8N Qc7 Re4 d4 Bd1 d3 Rd4 Nc4 Nd6 d2 Nf7 Nd6 Be2 d1Q Bf3 Qh4 Bh5 Qhg4 Nh8 Qd3 Ne3 Kd2 Nf1+ Ke1 Qd5 Qdd1 Qda5 Bc3 Rb2 Na3 Rd2 Nc2 Rd3 B3d2 Kf8 Bf4 Kg7 Be5+
1N1rq3/q2R1N1K/2q3Q1/1P1q1qQ1/2B3Q1/qN1r2P1/kbn1p1R1/1q1b2N1 w - - 0 1 legal: proof: a4 c5 f4 f5 e4 g5 d4 Nc6 g3 Ne5 h3 fxe4 f5 cxd4 Bf4 b5 axb5 Ng4 hxg4 gxf4 Ke2 Kf7 c4 h5 b4 a5 g5 d5 b6 e5 b5 h4 f6 Ke6 b7 e3 Kd3 a4 b8Q f3 g6 h3 c5 e2 c6 e1Q c7 a3 f7 e4+ Kc2 e3 Kd3 f2 g7 h2 Nf3 a2 Ne5 Ra3+ Nc3 Ne7 g8N Nc6 Nc4 Qe8 Qa4 Qc1 Qa6 Bg7 Qaa7 Nb4+ Ke2 d3+ Kf3 d4 Kf4 d2 Kg5 d1Q Kg6 d3 Be2 f1Q Nd2 Nc2 Rg1 h1Q Qa6+ Qhc6 Nb3 d2 Rg2 Qb2 Qba7 Qdb1 Nh6 d1Q Bc4+ Qd5 Ne2 Q2c1 Qb8 Bb2 Ng1 Kd6 Qba7 Bg4 c8Q Bd1 Qg4 e2 Qc5+ Ke5+ Kg7 Qf5 f8N Qe3 Nd7+ Ke6+ Qcd4 Kd6 Qc3 Qa7 Nf7+ Ke6 Nb8 Rf8 Nd2 Rb3 Qcd4 Rd3 Qg5 Rg8+ Kh6 Rf8 Qdg4 Rg8 Nh8 Kd6 Nf7+ Kc5+ Qf6 Kb4 Nb3 Rf8 Qfg6 Kc3 Kh7 Kb4 Qb6 Ka3 Qe3 Qee6 Qef4 Rd8 Qe3 Qee8 Qh6 Qc1 Rb1 a1Q Qhg5 Qce3 Rc1 Ka2 Rb1 Nb4 Rc1 Qb1 Rc3 Qa3 Rc2 Qea7 Rd2 Re3 Rd4 Nc2 Rd3 Qdd6 Rd4 Rd3 Rd5 Qdc5 Rd7 Qc5d5
2qQ1R2/k1r1K3/8/1n1N1bPq/1P1q1B1q/2qNN1r1/3Bqp2/1NbB1rQ1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 a4 b5 axb5 e5 f4 exf4 b4 Nc6 h5 Nce7 Ra6 Ng6 hxg6 f3 Rf6 Bb7 Rf4 gxf4 g5 Bc8 Kd2 f5 Kd3 a5 Kc4 h5 Kd5 h4 c4 d3 e4 a4 g7 a3 b6 a2 c5 a1Q e5 h3 e6 d2 c6 f2 e7 f3 Kd6 h2 c7 f4 b7 Nh6 g8Q Nf5+ Kd5 Ra7 b8B Qc3 Bb2 Rh3 Na3 Nd6 Nc2 Rg3 Bc1 Nb5 Bc4 f1Q Qg7 f2 Na3 f3 Qe1 d1Q+ Qd4 Qfe2 Bb3 f1R Nh3 f2 Nb1 Bg7 Nf4 d6 Nd3 Bf5 c8N Kd7 e8N Rc7 Ne7 Qc8 Bf4 Be5 Be3 Bf4 Bd2 Qh5 Qh8 Qde2 Bd1 Kd8 Ng7+ Kd7 Rg1 h1Q+ Rg2 Q1h4 Rh2 Rh1 Qg1 Be3 Qg2 Rf1 Qg1 Bf4 Be1 Bc1 Bd2 Bg4 Ngf5 Bh3 Ne3 Bg4 Ke4 d5+ Kf4 d4 Ke5 Bf5 Nd5 Kc6 Kf6 Kb7 Qd8 Ka8 Ne5 d3 Rh3 Rg2 Rf3 Rg3 Rf4 Rc5 Bd6 Ka7 Ke7 Rc4 Be1 d2 Nd3 Rc5 Rf3 Rc6 Bf4 Rc5 Ba4 d1Q Bd2 Qdc2 Bb3 Qd4 Ba4 Qcc3 Bd1 Bh3 Bc7 Bg4 Rf8 Bf5 Bf4 Rc7+
1N1nr1Qb/6q1/r4RqP/NNr1r1Br/pK4n1/1N1B4/kPnr4/2Q4B w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Qe1 h5 Qd1 f4 Ke1 Bb7 Ra6 Bd5 Rg6 Be6 Rg5 Bf5 gxf5 Ne7 Rg6 Ng8 Rg4 hxg4 Kd2 Ke7 e4 Kd6 h4 Kc5 c4 Kb4 e5 g5 e6 d5 h5 a5 b6 a4 h6 f2 b7 d3 e7 f3 e8B g3 c5 g4 c6 g2 f6 g3 f7 d4 c7 Qd7 c8N Bg7 f8N Nc6 Nh7 Ra6 Qe1 Kb3 b8Q+ Ka2 Nf6 Nd8 Ng4 Nf6 Bh5 Re8 Bg6 Bh8 Rh3 Qg7 Be2 f1R Ne3 f2 Nf3 g1Q Nc4 g2 Be4 Ng4 Na5 Qg6 Qd1 Re1 Na3 f1R Ne7 Qg7 Nec6 Rf2 Nfe5 Rf5 Nb3 Rh5 Nd7 Qg6 Bf1 Qg7 Bd5 R1e5 Nb5 Qg6 Rf3 Qg7 Qe1 Qg6 Kd1 d2 Rf6 Qg7 Kc2 d1N Kd3 Nde3 Nca5 Nc2 Kc4 d3 Bg5 d2 Qc1 d1R Bd3 Rd2 Qc8 Qb6 Nb8 g1R Bh1 Rf1 Qe6 Rff5 Qg8 Qd6 Rf7 Qdg6 Rf6 Nd4 Kb4 Rc5 Qd1 Rfe5 Qc1 Nc2+
NrNb1r1n/4r2r/q1pq1Q1r/7R/3NP3/1nQB1B1q/K1B2P1B/2k1r3 w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 f5 b4 axb4 g4 fxg4 d6 e6 d5 e5 a4 g5 h3 g3 Qd3 g2 Qd1 g4 Ra2 g3 Rd2 Bg4 Rd4 exd4 hxg4 Ra7 Be3 Ra6 Bc1 Ra8 Kd2 Kf7 Kc2 Kf6 Kb3 Ke5 e4 h5 a5 b5 d7 d3 g5 Kd4 a6 d2 g6 h4 a7 c6 g7 h3 d6 h2 Qf3 d1Q+ Kb2 b3 Qf4 b4 Be2 Qa5 d8N Na6 d7 Be7 Nh3 g1Q Na3 g2 Bf3 Kd3 Nb5 Nc5 Qg4 Qa6 Qg5 Rh6 Qf6 Qgf1 Ne6 g1R Nd6 Bd8 Nd4 Ne7 g8B Rg7 Ng5 Qh3 Bf4 Ng6 Nge6 Re7 Nc8 Nh8 Nc7 Qd2+ Kb1 b2 Bb3 Rb8 Bbd1 Nb3 a8B Kc3 Be5 Qf4 Bb7 Kd2 Bc2 Qfg3 Rg1 h1R Na8 Qgh2 Bc7 Qd6 Qg7 Rh2 Rg5 Rh7 Ra5 Rh6 Ka2 b1R Qe5 Re1 Qc5 Kc1 Qc3 Qc5 Bg3 Qd6 Be5 Rg2 Bh2 Rg8 Bg1 Rf8 Bh2 Bb6 d8Q Reh7 Qf6 Bd8 Ncb6 Re7 Bc8 Reh7 Be6 Rbb7 Bc4 Rbe7 Nb5 Nc5 Nd4 b3+ Ka3 b2 Nc8 b1R B4d3 Rb8 Ka2 Qb7 Rb5 Nb3 Rh5 Qa6+
2NR1b2/2n2b2/5N2/nPpb2QQ/2B1brrR/kN1P1N2/2K1b2Q/4nb1r w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 h4 g3 b3 Bg7 h5 Qf6 Bb2 Qh4 Bd4 Qg5 Bf2 Qg6 hxg6 Bf6 Qc2 gxf2+ Kd1 Kf8 g4 Ke8 g5 Bc3 Kc1 Bb4 Qd1 Bf8 e4 Ke7 b4 Kd6 b6 f5 d3 a5 b7 h5 b5 Kc5 e5 Kb4 g7 c5 g6 c3 e6 a4 e7 h4 e8Q f3 Be2 f1B Qd2 a3 Qe7 f4 Nh3 a2 Qf6 f2 Bh5 f3 Qe3 c2 Qb6 Nh6 g8N Na6 b8Q Be2 g7 f1B Nf4 f2 Rh2 h3 Qbe5 Ng4 Qh6 Nc7 Nd2 Ka3 Ne6 Ra4 Q5e4 Bg2 Ne7 f1B Bg6 Rg8 Qf5 Be4 Ng5 Be6 Nb3 Bf7 Nf3 Rd4 Qd2 Ne3 Qfg5 Ng2 Qhh5 Bed5 Nc8 Rf4 Rh1 h2 Bh7 Be4 Bf5 Bed5 Be6 Be4 Bc4 Bed5 Rb1 a1N Rg1 h1B Rb2 Rh8 g8N Rh7 Nf6 Rg7 Qe5 Rgg4 Qeg5 Bd1 Qf2 Bde2 Qg3 Be4 Qgh2 Bed5 Kd2 c1R Rc2 Ne3 Rg3 Ng2 Rh3 Be4 Rh4 Rb1 Rc1 Bed5 Re1 Be4 Nc1 Nb3+ Kc2 Na5 Nb3 Bed5 Ne7 Ne3+ Kd2 Bd1 Nc8 Bh3 Ne5 Bd1f3 Nd6 B1g2 Re2 Rh1 Nc8 Bf1 Kc3 Bhg2 Re1 Bd1 Re2 Bgf3 Re1 Ng2 Re3 Bfe4 Nf3 Bde2 Kc2 Bh7 Re8 Bhe4 Rd8 Ne1+
QQ1rN3/nN4NP/NPBb3r/n2q3Q/6K1/2kn3p/1r1n1Rnr/R6q w - - 0 1 illegal: No proof kernel
1K6/5rnq/6N1/1rP1NRnk/1qp1rPn1/B1NB2QN/1q4B1/qb2Q2n w - - 0 1 illegal: No possible last move, all moves rejected
1qQ3b1/b2q1Q2/P1n1bR2/Bn5R/N2p2kN/qr3R2/N2R1PKn/1q1n4 w - - 0 1 legal: proof: e4 c5 g4 f5 exf5 b5 d4 cxd4 Bh3 h5 b4 a5 g5 axb4 Bg4 hxg4 Be3 Ra6 Bc1 Rf6 gxf6 Rh6 Nc3 Rh7 Nb1 Rh8 Kf1 Kf7 c4 g5 a4 d5 h4 e5 a5 e4 c5 e3 a6 e2+ Kg2 e1N+ Kf1 d3 c6 g3 h5 b3 c7 d4 h6 b4 h7 g4 Bd2 b2 Bf4 d2 Rh2 g2+ Ke2 b3 Rh1 g3 Ra3 Be6 c8N Bc5 Ra2 Nc6 Nc3 b1Q Bc7 b2 Qb3 d1N Ra3 Na7 Rh6 Ne7 Ba5 Nec6 Ra2 Nb5 Nb6 Nf3 Nba4 Qd7 Rh5 Rb8 h8Q Ba7 Qc8 Nh2 Nf3 g1Q Nh4 g2 Qd5 Qc1 Qf3 b1B Rd2 Qa3 Na2 Bc2 Qd5 Bb3 Qc4 Ng4 Kf3 Qh2 Qd5 g1Q Qc4 Qhd6 Qd5 Qe1 Kg2 Nh2 Qf3 Qf8 Qf4 Kg8 f7+ Kg7 Qfc7 Qfd6 f8R Rb6 Q7b7 Qb8 Rf6 Bg8 Rfh6 Kf7 f6 Ke6 Rg6 Bc4 Rg3 Qe4+ Rf3 Qb1 f7 Bb3 f8R Bd5 Nf5 Ke5 Rf6 Bde6 Rg3 Kf4 Rf3+ Kg4 Nh4 Nbc3 Qbc7 Rb3 Q7b7 Nb5 Qbc7 Qd8 Qf7 Qd7
2k2r2/1bPrbQ1q/B1b3qP/1N1Rp3/2RNn1R1/2rNbq2/5Q2/1r4RK w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 f4 fxe4 g4 b5 axb5 h6 f5 Nc6 g5 Nb4 Bf4 Nd5 Bc1 Ndf6 gxf6 Qc7 Be3 Qd8 Bg5 hxg5 Kf2 a5 Kg2 e5 c4 d5 h4 Kd7 b4 e3 f7 d3 b6 d2 h5 d4 c5 d3 h6 a4 f6 a3 b7 a2 b8R g4 b5 g5 b6 e2 b7 e1Q Rh3 g3 Qc2 d1R Qc3 g4 Rh5 d2 Qb3 Qe2+ Kh1 Qc7 Rh4 Be7 f8Q Ra3 f7 Nf6 Nh3 Ne4 Nc3 Rg8 Rb1 a1R Nb5 Qd3 Qc4 Rc3 Nf4 Rh8 Rc1 Rb1 Rc2 Qe3 Nd3 Qf4 Qa2 Qe3 Qg7 Rf8 c6+ Kd8 Ra8 Qf4 b8N Bb7 Qb2 Kc8 Ra1 Qd7 c7 g2+ Kg1 Qdf5 Nc6 Qh7 Ncd4 Qf2+ Kh2 g1B+ Kh1 g3 Rg4 Qf4 Rc1 Be3 Ra4 Qf6 Rc4 Qf2 Qf6 Qe2 Qb3 Bc6 Qf2 g2+ Kh2 Qf3 Be2 Rd8 f8R Rf1 Rf6 d1B Rd6 Rd7 Rd5 Bc2 Qg3 Rf2 Rg1 Bb7 Qa2 Ba4 Qf4 Rff1 Qf7 Rf2 Na3 Bac6 Nab5 Qff5 Bf1 Rf4 Qf2 Qfg6 Qg8+ Rf8 Qgf7 Qf5 Be2 Qf3 Ra4 Rd6 Re1 Qg6 Nc5 Rh8 Rg3 Qf4 Na3 Qg8 Ba6 Qg7 Nd3 Qh7 Rc4 Rf8 Nab5 Rd7 Rd1 Qf6 Rg5 Qfg6 Rg4 g1Q+ Kh3 Qe1 Kg2 Qd2 Rg1 Qe2 Kh1 Qf3+
1Q3bN1/Qb3kBb/5pb1/NQ1R2qP/1bPN4/K2n3R/n2Q1br1/6nn w - - 0 1 illegal: No possible last move, all moves rejected
1b1b1Q1r/k3P2n/B4QNr/Q7/1K2bRn1/1pnP4/1R3Nnr/1QNb1b2 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 f5 Bb2 h6 Bd4 Qf6 Ng1 f3 Be3 Qf7 Bg5 hxg5 Nc3 f4 Nb1 Qf5 gxf5 Bd6 Kf2 Be7 Ke1 Bf8 a4 Kd7 e4 b5 h4 c5 e5 Kc7 a5 Kb7 e6 b3 f6 b2 h5 b4 a6+ Ka7 d6 f2+ Ke2 b3 Kd3 g4 Kc3 g5 d7 g3 d8N c4 h6 g4 f7 f3 h7 g2 Be2 f1N Rh4 f2 Qc2 g3 Qe4 Be7 f8Q Nc6 Qd5 Ne5 Nf7 Ne3 Bf3 f1B Be2 N5g4 Qd6 Bd8 e7 N8f6 Kb4 c3 Ra2 c2 Nc3 c1R Nd1 b1B Nf2 Rc6 Rb2 Be4 Ne5 Bd7 Ng6 Be8 Ngh3 g1B Nhf4 g2 Qd3 Bh2 Qb1 g1N N4d3 Bb8 Nc1 Ng2 Bc4 Bd7 d3 Ne2 Bb5 Nc3 Bc4 Nh6 Rf4 Bg4 Bb5 Bd1 Bc4 Rg8 h8Q Nh7 Qhf6 Ng4 Bb5 Rh8 Bc4 Kb6 Bb5 Ra7 Bc4 Rc7 a7 Rc8 a8Q Re6 Qc6+ Ka7 Ba6 Rc7 Qce8 Rc5 Qa4 Rh5 Qa5 Rh2 Q8f7 Re5 Q7g7 Reh5 Qgf8 Rh6
2k2rr1/Q1qq1p1N/1RR2n2/2Bqq1R1/2Qqr3/3n4/B1KB1PRP/2r4r w - - 0 1 legal: proof: d4 c5 b4 cxd4 b5 d5 b6 e6 e3 d3 Qg4 d4 Qg5 d2+ Ke2 d3+ Kf3 Bc5 Qg4 axb6 Kg3 b5 Qd1 b4 Kg4 Qb6 Kf3 Qd8 g4 h6 Kg2 Bd4 exd4 Bd7 Nc3 Bc6+ Ne4 Bd5 Kg3 Bc6 Ng5 Be4 Kh3 Bg6 Kg2 Bh5 gxh5 hxg5 Kf3 Kd7 Ke3 b5 c4 g4 a4 g5 d5 e5 c5 e4 c6+ Kc8 a5 b3 h6 b2 h7 b1Q a6 b4 d6 g3 a7 b3 c7 g2 Ra4 b2 Be2 g4 Nf3 g1R Qb3 d1Q Qb5 d2 Qb4 g3 Bc4 g2 Ba2 Qbc2 Ra5 b1Q Ng5 Nf6 Qc4 Rf8 h8B Nc6 Nh7 Qa1 Rg5 Ne5 Ba3 Qab2 Bc5 Qd7 Bg7 Rf1 Bh6 Nd3 Rg1 Rb8 a8R Qe5 Ra6 Q1g4 Rc6 Rc1 Rb6 Qge6 Ke2 Q6d5 Ke3 Qcc3 Ke2 d1R Ke3 Rf1 Ke2 Qcd4 Kd2 Rcd1+ Kc2 e3 Rg7 e2 Bd2 e1R Rg5 Qd8 Bcb4 Re4 Bc5 Kd7 c8R Rc1+ Kb3 Qde7 Rc6 Kd8 d7 Rfe1 Rh1 g1Q Rg2 Qf1 Rhg1 Ra8 Rg5 Qh3 R1g4 Rh1 Rg2 Rcd1 Kc2 Qc7 R5g3 Qee5 Rg5 Rc1+ Kb3 Rg8 R5g3 Qb7 Rg5 Rce1 Kc2 Qg4 Rd6 Kc7 Re6 Raf8 Rec6+ Kb8 d8Q+ Qc8 Ra6 Qbd7 Qa5 Qcc7 Rab6+ Kc8 Qa7 Rc1+
1B1n1r1K/pr2QB1R/1qqnB3/2n3rR/BN2Q1rr/PQ4n1/3Pr3/5k2 w - - 0 1 illegal: No possible last move, all moves rejected
1q3Nb1/nR1Q1q2/5Q2/1RR2pp1/qRP1r2B/n6N/kb3KPn/1N1r3r w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 axb5 e6 f5 exf5 h4 g5 hxg5 Bd6 g6 Be7 g7 Bf8 e3 Nf6 Be2 Ng8 Bh5 Ke7 Bg6 fxg6 Ke2 Kf7 Ke1 Ke8 c4 Ke7 b4 Kd6 b6 h5 e4 a5 b7 a4 b5 Kc5 b6 Kb4 e5 d5 e6 h4 e7 g5 e8R h3 Bf4 h2 Ne2 d3 Ng3 a3 Be5 d2+ Kf1 a2 Nc3 Ka3 Qe1 d1R Ke2 d4 Kf2 d3 Re7 d2 Nge2 Nh6 g8Q Nc6 b8N Na7 b7 Bg7 Qe8 Be6 Nf4 Bg8 Nd7 Qb8 Nh3 Bf6 Rg1 h1Q Bg3 Bg7 Rb1 a1N Qe5 Nc2 Nf8 Qh2 Qf6 Ng4+ Kf3 Qc7 Qd7 Re8 b8R Rh4 Rf7 Re4 R1b5 Rh8 Nb1+ Ka2 Re8 Na3 Bh4 Qhd6 Ree5 Nh2+ Kg3 Qe6 Rc5 Qb8 Kf2 Qd5 Rfe7 Qf7 Rb5 Rh7 Rec5 Rh5 Qh6 Bb2 Qf6 Rde1 Rb4 d1Q Ree5 Qa4 Rcb5 Rd4 Rec5 Red1 Re1 Rh7 Re6 Re4 Reb6 Rh6 Rb7 Rh1 Qfe7 Rd6 Qf6 Rdd1
b2R1Qq1/Rn4rr/3r1Bn1/p2k3n/P2P2K1/1b1B3R/R1Q1p3/q1N1qB2 w - - 0 1 legal: proof: c4 c5 g4 h5 f4 hxg4 b4 d5 bxc5 e6 Nc3 f5 Ne4 Bd6 e3 fxe4 f5 Bf4 exf4 dxc4 Kf2 Kf7 Kg3 a5 h4 g5 d4 b5 a4 c3 h5 c2 f6 e5 h6 Ke6 c6 e3 h7 b4 f5+ Kd5 f7 e4 f8Q b3 c7 e2 f6 e1Q+ Kg2 b2 f7 b1B Qb4 g3 f8R g4 Bd3 e3 Ba3 c1Q Qe2 Bb7 c8B Nc6 Rf3 Ra6 Rf4 Ba2 Qf2 e2 Qc3 Bb3 Nh3 Ba8 Ra2 Nf6 Be7 Qa1 Qc2 Nh5 Rf7 Qg8 Bf6 Nd8 Ra7 Nb7 Qf1 Rd6 Nf2 Rd8 Rh3 Rd6 Kg1 g2 Kh2 g1N Kg2 Nf4+ Kg3 Nh5+ Kh4 g3 Bd7 Qe8 Kg4 g2 B7f5 Nf3 Bc8 Rf8 h8R Rf7 Bcf5 Qb8 Rd8 Nh4 Bfe4+ Ke6 Bf3 g1R+ Bg2 Rc7 Ba6 Qc8 Nd3 Rh7 Nc1 Ng6 Bd3 Qb8 Rd7 Qg8 Rd8 Rg7 Qf4 Rh1 Bf1 Kd5 Qh6 Re7 Qf8 Rg7 Rf3 Ng3 Re3 Rhh7 Rf3 Nh5 Rg3 Rdd7 Rh3 Rd6
3N2n1/R4rNB/3QP2p/3pP1N1/4q1R1/bk1Nqq2/nbrQ2Kn/1R2b3 w - - 0 1 illegal: No possible last move, all moves rejected
k5r1/r1Q2PN1/2p1p3/1n2Qb1P/1KNNN3/qb4b1/3n1rBQ/B2n2qR w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 d5 cxd5 f5 e4 fxe4 b5 b6 Ra3 Rh6 Rb3 Rh3 Rb4 axb4 a5 Rh7 axb6 Rh8 f4 Kd7 h4 g5 d4 c6 Kd2 e3+ Kc2 g3 Kb3 g2 b7 Kc7 f5 g4 f6 e2 f7 e1R h5 g3 Bh6 Re2 Nd2 Be6 Bg7 Nf6 Ngf3 g1Q Qa1 g2 Ne5 Ne4 Nec4 Na6 d6+ Kb8 d5 Ra7 d7 Rg8 d6 Nf2 Qe5 Nd1 Ne4 Qa5 d8N Nc7 d7 Rf2 Qh2 Bd5 Ba1 Bh6 Ne6 Bf4 d8N Bg3 Ng7 Qa6 Nde6 Qa5 Nf4 e6 Ne2 Qa3+ Kc2 b3+ Kd3 Rf4 Nd4 b2+ Kd2 Qc5 Kc2 b1B+ Kb3 Rf6 Nf2 Bf5 Ne4 Qb6 Kb4 Qa6 Ne3 Bb3 Nc4 Qf2 Bb2 g1N Ba1 Nf3 Bh3 Qg1 Bg2 Bf2 Qe5 Nd2 Qh2 Ra8 Qe5 Ka7 Qh2 Qa2 Qe5 Bg3 b6+ Ka6 b8Q Nb5 b7 Ra7 Qbd6 Qb2 b8Q Qa2 Qe8 Kb7 Qed7+ Ka8 Q6c7 Bg6 Qe7 Rf2 Qh4 Bf5 Qh2 Qa3+
3qN1rn/1QPp4/qbp2n2/R1BnQB1k/3N2q1/1r5r/1b1P1Q1K/Q4N2 w - - 0 1 legal: proof: a4 c5 c4 Qc7 b4 Qd6 b5 Qh6 Ba3 Qe3 Bb4 cxb4 c5 Nc6 Ra2 Qc3 Rc2 Nb8 c6 Qe5 Rb2 Qc7 Rc2 Qd8 c7 Nc6 Rc1 Nb8 Rc6 Na6 Rc2 Nb8 e4 h5 g4 f5 gxh5 fxe4 Rc6 bxc6 b6 Ba6 Nc3 Bd3 Nb1 Bb5 axb5 Rh6 Na3 Rh7 Nb1 Rh8 f4 Kf7 Kf2 a5 Kg3 g5 h4 e5 b7 g4 h6 Kg6 f5+ Kh5 b6 a4 h7 e3 f6 a3 f7 a2 Nf3 a1B Bc4 e4 Nc3 b3 Nb5 e2 Be6 e1N Bf5 b2 Nh2 b1R Nf1 e3 Nd4 e2 Kh2 Bc5 f8B Na6 b8Q Nb4 b7 Nd5 Qa7 Bb2 b8Q Bb6 Bc5 Ng2 Qbb7 e1Q Qda4 Ngf4 Qa1 Ngf6 Rg1 Rf8 h8N Rg8 Nf7 Ng6 Nd6 Nh8 Ne8 Qe2+ Rg2 Qb5 Re2 Qa6 Re5 Kh6 h5 g3+ Kh3 g2 Kh2 Kg5 h6 Kh5 h7 g1Q+ Kh3 Qg4+ Kh2 Nf7 h8Q+ Nh6 Qg7 Nf7 Re3 Nh8 Ra3 Rb8 Ra5 Re1 Qe7 Re3 Qe5 Qb5 Qaa6 Qa4 Qc4 Qb5 Qd3 Qa6 Qe2 Rf3 Qg2 Rh3+ Kg1 Qh4 Qc8 Ba7 Qgg3 Rb3 Qb7 Qg4 Qg2 Rhf3 Kh2 Bb6 Qf2 Rh3#
1QB1QN2/1PrNQ2P/3K1Bbq/1QqRn1p1/n4qb1/p3Nrkr/1b6/8 w - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 h4 f5 b6 a5 b7 g5 d6 c5 Kd5 a4 e5 a3 d7 c4 e6 c3 b5 c2 b6 Bd6 e7 Rh5 e8Q Bc7 Nc3 Be5 Nf3 g1R Bh3 g2 d4+ Kg3 Bb2 c1Q Qf1 f4 Nd1 Qf6 d8N Bg4 Qfb5 Na6 b8Q Ra7 Ne3 Rc7 b7 Rf1 Ne6 g1Q Nf8 Nc5 Rh2 Qh6 Rd2 Bg7 Ne5 f3 Ned7 Nf6+ Kd6 f2 d5 Na4 Qe7 Qc4 Be5+ Qf4 Qee8 Qg6 Rd3 Rh7 h5 Qh6 Qe7 Ra1 Rd4 f1B Rd1 Bd3 Qbe8 Qg6 h6 Rh8 Rd2 Rf1 Qb8 Rf3 h7 Qh6 Qbe8 Bg6 Nb8 Qc1 Q8d7 Rc2 Nd1 Rf1 Ne6 Rh1 Ne3 Rh2 Qde8 Bd1 Rd3 Ng4 Kd7 Rc4 d6 Rf8 Rd5 Qc3 Bd4 Qf3 Be5+ Rff4 Nf8 Rc8 Ke6 Qc5 d7 Qe4 d8Q Rc7 Nbd7 Bh8 Nb6 Qeb4 Ba1 Rff2 Bc3 Qf4 Qb8 Bd4 Be1 Bb2 Bc3 Be2 Bf6 Ne5 Bf5 Rh3 Bg4 Qc2 Kd6 Qcc4 Be6 Bg4 Bc8 Rf3 Nbd7 Qc5+
1bnR2N1/Q1nn2N1/1B2qPQ1/N2Q3B/n1p5/3p2nr/3PrN2/1b1K2kb w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 b4 c6 b6 Ba6 b5 cxb5 Ke2 Bb7 Ke1 Bc8 c4 Nc6 c5 Nb8 Ra4 Nf6 Rg4 Ng8 Rc4 bxc4 f4 Kf7 g4 Kf6 c6 a5 c7 e5 b7 h5 Qa4 d5 Qa2 e4 Ba3 h3 Ke2 e3 Nc3 h4 Bb4 a4 Qb1 d4 Rh2 a3 Rg2 h2 Nd1 h1N Nc3 h3 Bd6 a2 Ke1 a1N Nf3 e2 Ne5 h2 Bc5 Qd5 Nc6 Qe6 Nd1 Nd7 b8Q Ne7 Nf2 Ng3 Qa7 h1B Bb6 Rh3 Na5 Nb3 Qc2 Bb7 c8Q Nbc5 Qc6 Re8 Qd5 Na6 Qb1 Nc7 g5+ Kf7 f6 Nc8 f5 Bd6 Rg1 Bc6 Qbe4 Ba4 Bg2 Bc2 Bf3 Bb1 Bg4 d3 Bf3 Nc5 Qg4 Na4 g6+ Kf8 f7 Ke7 f8N Kf6 Qge4 Kg5 f6+ Be5 Bg4 Kh4 g7 Bf4 g8N Bd6 Qg6 Re7 Ne4 Re8 Kf2 e1N Bh5 Nf3 Rg2 Ne5 Ke1 Nd7 Kd1 Nb5 Re2 Bb8 Nf2 Nc7 Re1 Qd6 Rg1 Re2 Ne6 Qc6 Ng7 Qe6 Ng4 Nf5 Re1 Kg3 Nf2+ Kh2 Rg1 Bf3 Rg4 Ng3 Re4 Kg1 Re3 Qc6 Re8 Qe6 Rd8 Bh1
4Q2B/2b3nN/R4p2/2RNp3/1Pnkb2N/b3q1Pb/Nrrr1nQR/4K3 w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 h4 gxh4 a4 Kd7 axb5 Ke8 e4 Qd6 e5 Qd7 f5 Qd8 f6 exf6 e6 Nh6 e7 Ng8 Bd3 Kd7 Bf5+ Kd6 Be6 fxe6 Ra5 Kd7 Ra2 Bg7 Ra1 Bf8 e8N a5 d4 c5 d6 h5 b6 Kc6 d7 Kd5 g3 h3 b7 h4 b3 h2 Nd6 a4 Qg4 c4 Nd2 h3 Nb5 a3 Kd1 c3 Nf1 a2 Bh6 c2+ Ke1 Nc6 b8N Na5 Bg7 Nh6 Qe2 Ba3 b4 Nf5 Nf3 Nc4 Qg2 Qe8 d8R+ Bd7 Rc1 a1B Ne3+ Ke4 d5 Be5 Ra1 Bc7 d6 Ra4 Nd5 c1R+ Ke2 Rf8 Bh8 Ng7 Rc8 Rc2+ Ke1 Qe7 Ra2 Rd8 Nbc3+ Kd3 Nh4 Kd4 Ra1 e5 Na2 Qe6 Rf1 h1N Rf2 h2 Re2 Qg8 Rf2 Bh3 Nd7 Qh7 Nf8 Qh6 d7 Qe3+ Re2 Nf2 Nh7 Bb8 Rc5 h1B Qf1 Be4 Qg2 Rf8 d8Q Bc7 Qe7 Rd8 Qe8 Rb2 Rc1 Ra6 Ra5 Rc6 Ra6 Nd2 Rc5 Rdd6 Rca5 Rcc2 Rc5 Nc4 Ndc3 Kd3 Qh2 Nd1 Qh1 Qf4 Rh2 Nf2 Qg2 Ke3 Qe7 Rdd2 Qe8 Kd4 Nd5 Qe3+
3n2bB/5rB1/2Pp1n1B/NkN4q/3n2bK/1P3rNR/b1pQ4/Qr4bN w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 g5 h4 f5 exf5 gxh4 d4 Bg7 c4 Na6 c5 Nf6 Bc4 dxc4 d5 Bf8 d6 Nb8 d7+ Kf7 Ra6 Ng8 Rd6 cxd6 g4 e5 f4 Ke7 Kf2 h5 g5 a5 g6 e4 b6 c3 b7 a4 g7 a3 Be3 c2 Nf3 h3 Kg3 h4+ Kg4 h2 Nd4 h3 Ne2 a2 Nbc3 a1R Ng3 R8a7 Nce2 Qa5 d8B+ Kd7 f6 Kc6+ f5 Kb5 f7 Nc6 b8N Rb1 Bh6 e3 Bf6 Nd8 Qd2 Be6 Kh4 Ba2 Bc3 Nf6 g8Q Bg7 f8N Rf7 b3 Rh7 Ne6 Rh8 N2f4 e2 Nc6 e1N Nfh5 Rh7 Qe8 Rh8 Qd7 Rhf8 Qa7 Bh8 Ne5 Bg7 c6 Bh8 Nc4 Bg7 Rg1 h1B Nc5 Bf3 Nh1 h2 Rg3 Bg4 Rh3 Bh8 N5g3 Bg7 Nf2 h1B Qa8 Bd5 Nfh1 Ne8 Qa7 Bd4 f6 Bg1 Bb2 Rb7 Qa8 Bg8 f7 Re7 Bbg7 Nf6 Bh8 Re3 B6g7 Rf3 Bh6 Nd3 Qa7 Nf4 Qa8 Nfe6 B6g7 Re8 f8B Re7 Bh6 Nd4 Bfg7 Rf7 Qa7 Qc3 Qa3 Qe3 Na5 Qe8 Qb2 Qe5 Qa1 Qh5+
1QQb3R/1Br2kPn/pK2p2B/1r5r/PR4Q1/qBN1n1bn/3B4/4br2 w - - 0 1 legal: proof: e4 c5 c4 f5 f4 fxe4 f5 g5 b4 d5 bxc5 dxc4 g4 Bh6 Nc3 Qd5 Nce2 Bg7 Nf4 gxf4 Ba3 Be6 Bc1 Bf7 h3 Bh5 g5 Bg4 hxg4 Qd8 Qb3 Bh6 Qd1 Bf8 Kf2 b5 d4 h5 a4 b4 g6 c3 f6 a6 g7 c2 c6 f3 Ke3 f2 d5 e6 Kd4 b3 c7 e3 c8B e2 g5 e1B g6 h4 d6 h3 Kc5 h2 Bb2 c1B Bd3 f1R Bc4 Nd7+ Kc6 Qe7 Bb7 Nh6 g8Q Bg5 Bc3 b2 Bd2 b1R Qg4 Rb5 Ne2 Ra7 Rb1 Nf5 Nc3 Ne3 Rb4 Rh5 Bb3 Bgh4 g7 Bhg3 Qh8 Kf7 Kc7 Ne5+ d7 Nf3+ Kc6 Ng5 d8B Nh7 Bc7 Ng5 Bf4 Nh7 Bh6 Qc5+ Kd7 Bfd6 Qb8 Bc7 Qc8 Qf8 Kc6 Bd8 Qb8 Ke8 f7+ Ke7 Rg1 h1N Qc8 Nf2 Rh1 Nh3 Qb8 Qg8 Rh2 Kf6 f8Q+ Qf7 Qe8 Qe7 Qd7 Kf7 Qdc8 Rbe5 Rb6 Qa3 Rb4 Bf6 Kb6 Rc5 B7d5 Rac7 Bb7 Bd8 Rf2+ Ke8 Rf8+ Ke7 Re8+ Kf7 Rh8 Rb5+
Kr1nRQ1q/2P5/p4b2/1RB1r3/2b2k2/1RQp2nb/QP5n/r3rNBQ w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 g6 exf5 Kf7 d4 cxd4 f6 Ke6 f7 Kd6 g4 Nf6 f5 Ng8 f6 Bh6 Nc3 Bg7 Bd3 Bf8 Bf5 gxf5 Ne4+ Kc7 g5 h5 Nf2 Kd6 Ng4 hxg4 Kf2 Ke5 c4 d5 h4 g3+ Kf3 g2 g6 a6 b6 f4 g7 d3 b7 d2 c5 e6 h5 d4 c6 d3 h6 Rh7 c7 Nc6 b8R Be7 Rb3 Rb8 Ne2 g1R f8B Kf5 f7 e5 Ra4 Nf6 g8Q Nh5 Rab4 Ng3 Rb5 Bf6 Bc5 Bd7 f8Q Re7 Qc2 d1B h7 Re1 h8Q e4+ Kf2 f3 Ke3 f2 Qc3 f1R Rh7 Re6 Re7 Re5 Re8 Qc8 Qhh6 Nd8 Kd4 e3 Qh1 Rg1 Qgd5 Kg5 Kc4 Bh3 Kb4 Bc2 Ka5 Bb1 Qdc4 Ba2 Bd2 Ra1 Be1 Rf1 Bf2 Rfe1 Bg1 Kf5 Nd4+ Kg5 Nc2 e2 Qa4 Kf5 Ne3+ Kg5 Nf1 Kf5 R3b4 Bc4 Qa2 Kf4 Rb3 Qf5 Rb7 Qh7 Kb6 Qh8 Ka7 Red1 R7b6 e1N R6b5 Nf3 Ba3 Rde1 Bac5 Rb6 Ka8 Nh2 Qd6 Rb7 Qf8 Rb8+
1Q3Nk1/3Brrp1/3r2b1/n1n1Rbr1/B2QN2r/1pNq2P1/P1Q4q/3K1N2 w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 h5 g3 h4 Na3 h3 Rb1 Na6 Rb3 Nc5 Rf3 Na6 Rf2 Nb8 e4 e5 d4 Bd7 d6 Ra5 d5 Ba4 Rg2 hxg2 Be3 Bd7 Bd4 exd4 e5 Be7 e6 Bf6 Kd2 Ra8 Ke1 Be5 fxe5 Bc8 h4 Kf8 h5 f5 d7 c5 h6 b5 h7 c4 d6 b3 Qd3 b2 Qb3 b1B Ne2 g1Q Qd1 f4 Rh2 c3 Qc2 d3 Rh1 f3 Kd1 b4 Rh5 b3 Nc4 f2 Ne3 Qh2 Bh3 d2 Nf1 Na6 e7+ Kf7 e8N Ra7 Bg4 Nc5 Nf6 Ne7 Ne4 Nc6 e6+ Kf8 Re5 Na5 e7+ Kf7 e8B+ Kf8 Nf4 Rb7 Ke2 d1R Nd5 Rd3 Qb2 c2 Ndc3 c1R Qc2 Rd5 Be6 Rcd1 Bg4 Qg5 d8N Qf5 Ba4 Re7 d7 Rd6 Bh3 R1d5 Ne6+ Kf7 d8Q Bd7 Ned2 Qd3+ Kd1 Bc8 Nf8 Bf5 Re2 Bg6 Bhd7 Rg5 Qb6 Ne6 Qd4 Nc5 Ne3 f1R+ Re1 Rff6 Nf1 Rf4 Re2 Rh4 Re5 Rg8 h8Q Bf5 Ng6 Rb8 Qc8 Rb7 Nf8 Kg8 Qb8 Rf7 Be6 Re7 Bed7 Qa6 Nde4 Bg6 Qf2 Bd3 Qc2 Qc4 Nf2 Bdf5 Nfe4 Qd3+
Qb1b1B1k/4p1NN/B4nb1/1b3r1P/1nb1r1P1/p4Bq1/8/KRQBN2q w - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 g4 c5 a4 cxd4 Ra3 g5 axb5 h4 e4 fxe4 Rg3 hxg3 fxg5 Rh6 Be2 Rh7 Bf1 Rh8 Kd2 Kf7 h4 Kg7 c4 a5 Kc2 d5 Kb2 e3 c5 e2 c6 e1B b6 g2 b7 d3 b5 d2 c7 d4 b6 d3 g6 a4 h5 a3+ Ka1 Bf2 Nc3 Nf6 Nf3 g1Q Ne1 Nc6 b8Q Be6 c8B Ra4 b7 Qd6 Be2 Bc4 Qa8 Nb4 b8N Bb6 Ne4 Bd8 Nc5 Qdg3 Ba6 Rh7 Nbd7 Kh8 Bb2 Bg7 Qc1 d1B Bf3 d2 Ne6 Bc2 Ndf8 d1B Bd4 Bh6 Ng7 Bf4 Bc3 Rh6 Nh7 Bb8 Bd2 Bb5 Ne6 Be5+ Qb2 Nc6 Nd3 Nd5 Bc1 Be2 g7+ Kg8 Qc3 Rf6 Qb2 Q1g2 Bh6 Bb8 Rb1 Qh1 Ne1 Bg6 Qc1 Bed3 Bd1 Rf5 Bf3 Re4 Bd1 Ncb4 Bf3 Kf7 g8B+ Ke8 Bf8 Nf6 Nc5 Bf1 Bb3 Bfc4 Bbd1 Kf7 Ne6 Kg8 Ng7 Kh8
2n1NR1b/1P1Q2qb/2RBp1bB/2Kbn2p/3B1P1b/3k1Br1/6Q1/1q1r3Q w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f5 Na3 fxe4 Nc2 Nh6 axb5 Nc6 b6 Nb8 b5 Ng8 Nb4 axb4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 g4+ Kf4 b7 h5 d6 h3 d7 e3 g5 e2 g6 e1B b6 h2 g7 b3 Nf3 b2 Be2 b1B Ne5 Bg6 Ra6 Nc6+ Kc5 Ke4 Nc4 Ne5 Rf1 h1B Bf3+ Kd3 b8B c6 b7 Qc7 d8B Bcf5 Rb6 e6+ Nd6 Ne7 g8Q Ra3 Ne8 Nc8+ Be7 Bh7 Bd6 Bg7 Ba7 Bf6 Qg2 Bfg6 Bb2 Qd7 Bd4 Qg7 Be3 Rg8 Bh6 Rb3 Qa1 Rb1 Ra6 Rd1 Rb6 Kc2 d4 Kd3 d5 Bc3 Be7 Bb2 d6 Bh4 d7 Bc3 d8Q+ Bd4+ Kb4 c5+ Kb5 c4 Qd7 c3 Rc6 c2 Bd6 Bc3 Bd4 c1Q Kc5 Qb1 Re1 Bg5 Re4 Bh4 Rf4 Bb2 Rf8 Bc3 Bg4 Bb2 f4 Bc3 Qg3+ Bf3 Qg2 Bd5 Bf3 Qf7 Qg3 Rd2 Qa8 Qh1 Bg5 Nc4 Bg7 Bge4 Qa2 Qb1 Qg1 Rd1 B7h6 Bh8 Bf6 Rg3 Qh1 Qg7 Bd4 Beg6 Qag2 Ne5
1r5k/2n1Q3/2n3nK/1r1P2R1/bNNpRr2/1B1PN1b1/3Nnqp1/2Q1qR2 w - - 0 1 legal: proof: c4 d5 f4 e5 g4 exf4 b3 c5 a4 b5 axb5 h5 Bb2 hxg4 Bd4 cxd4 cxd5 Qd7 Nf3 Qc7 Ng1 Qd8 Kf2 a5 h4 f5 e4 Kf7 h5 g5 h6 g3+ Kf3 g2 b4 a4 b6 a3 b5 a2 h7 Kg7 e5 Ra5 b7 Bc5 b6 Rb5 e6 Bd7 e7 Bd6 e8Q Qe7 Qc1 Qe1 Nc3 Nc6 b8N Nge7 b7 Ng6 Rh5 Be5 Rb1 a1N Nd1 Nb3 Bc4 Nc5 d3 Ne6 Na6 Nc7 b8N Rg8 Qe6 Kh8 Qe7 Rc8 Ne3 Be8 Nd7 Rcb8 Nb6 Bd7 Nh3 g1N+ Kg2 g4 Rg5 g3 Nf2 Bd6 Bb3 Ne2 Kh3 f3 Ne4 g2 Nb4 f2 Nd2 f1Q Nbc4 Qff2 Ra1 Be8 Rb1 f4 Kg4 f3 Kh5 Bh2 Kh6 Bg3 Qa3 Qeg1 Rf1 Qe1 Qa1 f2 Qc1 R5b7 Rg4 Na7 Kg5 Ba4 Re4 Rb5 Kh5 Nc6 Kg5 Qh2 Rg1 f1R Rh1 Rf2 Rf1 Qg1 Kh5 Rf7 Kg5 Kg7 h8R Qgf2 Rh5 Kg8 Kh6 Kh8 Rg5 Rf4
Q1q3B1/5B1R/3rP1pq/1n4R1/rB1r1rQ1/P7/n1KNpkbR/b1B3q1 w - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 e6 Nc3 Qh4 dxe6 Qf6 d5 Qd8 Ne4 fxe4 Kd2 Ke7 h4 b5 f4 c5 a3 b3 h5 c4 f5 g3 h6 b4 h7 b2 Qb3 b1R Qc3 b3 Qb2 g2 Rh4 c3+ Kd1 g6 Nh3 g1Q Rh5 c2+ Kd2 e3+ Kc3 e2 Nf2 Na6 Bd2 Nf6 Rh2 Rd1 Bh3 Nb4 Ne4 Bg7 Bc1 Bb7 Nd2 Rf8 h8R Ra4 Rh7 Ne8 Rb1 Nc7 d6+ Ke8 d7+ Ke7 Qa2 b2 Qc4 Bg2 Qg4 Na2+ Kd3 Qc8 f6+ Kd8 f7 Nb5 e7+ Kc7 e8B Kb6 d8B+ Kc5 Ba5 Kd5 Ra1 b1R Bc3 Rbb4 Rb1 Rc4 Bb4 Rf4 Rb2 Rg8 f8Q Bf6 Rb3 Rg7 Rc3 Rd7 Rc6 Rd6 Bf7+ Qe6 Ra6 Bg7 Ra5 Bh8 Bb2 c1Q Qe8 Qc8 Bc1 Bf6 Qg8 Qf8 Qh8 Qh6 Kc2 Kd4 Qa8 Ke3 Bg8 Bb7 Bg2 Qc8+ Bc6 Bg7 e6 Bc3 Bd7 Bg2 Be8 Kf2 Bef7 Ba1+ Qc6 Nc7 Qa8 Rdd4 Rg5 Rd6 Nb1 R1d4 Nd2 Nb5+
4qR1n/1BBrB3/b1NQpR2/1q1qr1QP/3P1B2/Kn1k1n2/q2p4/3bR3 w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 cxd4 e3 hxg4 Qf3 d3 Qe2 Bb7 Qd1 Bc8 Na3 d5 Qf3 f5 Nb1 e6 Qd1 d4 Nc3 Bc5 Ne4 fxe4 Bg2 d2+ Kf1 d3 Bh3 Qg5 Kg2 Bd4 exd4 Rh5 Kg3 Qe7 Bf1 Rh8 Kg2 Qd8 f4 Kf7 Kf2 Kf6 Ke3 Kf5 c4 a5 h4 g5 b4 a4 b6 a3 h5 a2 c5 g3 b7 g4 b5 g2 c6 g3 b6 Qe8 c7 Na6 b8Q Rh7 b7 Rd7 Nf3 g1N Bg2 Nc5 Ne5 Nf3 Re1 Ra5 Nc6 Nh6 Qe2 d1B Qd2 Nb3 Rb1 Kg4 f5 a1Q f6 Kf5 f7 Qa2 f8B Re5 Be7 Nf7 Rb2 Nh8 Qa5 Qa1 Rf2 Qa4 Qd5 Qb5 Qd6 Qd5 Qa8 Qb5 b8B Ba6 c8R Qd5 Bh1 g2 Bc7 g1Q Qb8 Qg2 Qb5 Qeg6 Rff1 Qa2 Rf8+ Qf7 Ba3 d2 Bg5 Bc8 Bf4 Ba6 Rf2 Bc2 Ke2 e3 Bb4 Bd1+ Kd3 e2 Kc3 Ke4 Qa5 Qa4 Kb2 Qe8 Qac5 Qb5 Ka3 Kd3 Rf6 Qdc4 Qcd5 Nh4 Qg2 Nf3 Qg5 Qcc5 Qd5 Qc2 Be7 Qcc4 Qd6 Qcd5 Ref1 e1Q Rf8 Qe2 Re1 Qe3 Rg1 Nh2 Bb8 Kc3 Na5 Qdf3 Bc7 Qed3 Re1 Qg2 Be3 Qc2 R2f6 Kd3 Bf4 Qgc6 Bd5 Q6c4 Bc6 Qcd5 Bb7 Nf3 Nc6 Qa2+
1rBQ4/N4n2/3Ppbnb/Qb5B/p1KRrn1q/2PBQ1Q1/2q5/b1N4k w - - 0 1 legal: proof: b4 b5 e4 c5 a4 g5 h4 f5 hxg5 fxe4 d3 Ba6 Ra2 Bc8 Rb2 d6 axb5 d5 b6 d4 Be3 dxe3 b5 Bg4 Rb3 Bc8 Rb4 cxb4 Ke2 Kf7 g4 Ke6 f4 Kd5 g6 a5 g5 h5 d4 b3 g7 b2 g6 a4 f5 h4 f6 h3 b7 h2 b6 Nh6 g8B+ Nf7 g7 Rh4 Qd3 Nc6 b8Q Ne5 b7 Bd7 Na3 b1Q Qa7 Bb5 b8Q Ng6 Qg3 Rb8 Qa5 e6 Bh7 Rf4 g8B Bh6 Bg2 Ne7 Bf5 Ng6 Bg4 Qb2 Bh5 Rg4 Bh7 Rf4 Ke1 e2 Kd2 e1B+ Ke3 Qh8 Ne2 Bc3 Rd1 h1N Nc1 Nf2 Qe2 Nh3 Rd3 Kd6 d5 Ke5 d6 Qa2 Qd2 Ba1 c3 Qc2 Rd4 Kf5 Bf1 Qd8 Bc4 Rh4+ Ke2 e3 Bd3+ Re4 Bc4 Nh8 f7 Qh4 f8Q+ Nf7 Qfd8 Nf4+ Ke1 e2 Qe3 Qb1 Kd2 Qb3 Bd5 Qb1 Bb7 e1B+ Kd1 Bd2 Ba6 Qd3 Bc8 Qe2+ Kc2 Bg7 Nc4 Bf6 Ne5 Qg2 Nc6 Qf2 Kb1 Qe2 Ka2 Qd1 Na7 Qc2+ Ka3 Ke5 Kb4 Kf5 Qh2 Ke5 Be2 Kf5 Bd3 Kg4 Qhg3+ Kh5 Qdb6 Ne7 Nb3 Nh3 Qee1 Bh6 Qd8 Nf4 Qge3 Kg4 Bg6 Be5 Nc1 Bf6 Q3d2 Kh3 Qde3+ Kh2 Q1g3+ Kh1 Bh5 Neg6 Kc5 Be8 Kc4 Bb5+
2Brb3/5k2/1Pn4Q/Bp1n1pq1/b7/1q1P2NQ/BKN1bQ2/BR1b1q1r w - - 0 1 illegal: No proof kernel
2r3N1/6q1/1pnPK3/BBBrnrP1/pN5r/2R1Q1B1/3Nb1q1/k2bQ2n w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 a4 gxh4 a5 b5 axb6 Qd6 b7 Na6 b8B Qd8 f4 e5 b5 e3 b6 e4 b7 Ba3 Ra2 Bc5 Rb2 Bd4 Rb6 Be5 fxe5 cxb6 Ke2 Ke7 d4 Ke6 c4 h5 g4 f5 g5 f4 c5 Kd5 e6 Kc4 e7 h3 e8N f3+ Ke1+ e2 Kf2 e3+ Kg3 h2 Kf4 f2 Ke5 h4 c6 h3 d5 Qe7+ Kf4 Nf6 c7 Ng4 Qd2 Kb3 Nf3 e1R Qb4+ Ka2 Qc5 e2 Nbd2 Ne5 Qe3 Bg4 c8Q Rd1 Qe6 e1R Bd6 Nb8 Nf6 a5 Ng8 a4 Bb5 f1B Bc5 Rh4 Nd4 Nbc6 b8B Qg7 Nc2 Bfe2 Nb4+ Ka1 Ba3 Bgf3+ Kf5 Rf1 Rg1 h1Q Rg3 h2 Qe7 Rg1 Ke6 Qg2 Bbd6 h1N Rh3 Nc4 Bg3 Rc8 d6 N4e5 Qf6 Qa7 Bf2 Rd8 Ne4 Bc4+ Nd5 Qa8 Qe1 Bd3 Qf4 Rc8 Bab4 Qa7 Ba5 Qg7 Nb4 Rf1 Qfd2 Bh5 Rf3 Bc2 Rc3 Be2 Bg3 Rff8 Qe3 Rf5 Q1f2 Rd4 Nd2 Rd5 Qe1+ Bcd1
NqkN4/1r2r3/P3bb1p/4np2/rBN4q/1KR1Q2P/1Q5q/QrN1B2n w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 e4 f5 e6 Ra7 e5 Ra8 b4 axb4 cxb5 Qe7 Be2 Qh4 Bf1 Qd8 f4 g6 a4 Ba6 Bd3 Bb7 Be4 Bc8 Ra2 Qf6 Rf2 fxe4 f5 Qe7 f6 Qd8 Rf5 gxf5 Kd2 c5 Kc2 d5 g4 e3 b6 d4 f7+ Ke7 b7 c4 h3 c3 g5 h6 a5 e2 g6 e1R g7 d3+ Kb3 c2 Ne2 d2 Na3 Nc6 b8Q Rh7 Nc4 Nf6 g8Q Ra6 Qg3 Ng4 Qe3 Bg7 f8B+ Ke8 e7 Kd7 e8N Qh4 Rh2 Nf2 Ned6 Nh1 Nb7 Bf6 Nd8 Rf7 Bb2 c1Q Bc3 Qa1 Qb1 d1R Nc1 Re2 Be1 Qb2+ Ka4 b3 Qa1 Qc2 Bfb4 b2+ Ka3 b1Q e6+ Ke8 e7 Kd7 e8N Ne5 Nc7 Ra7 Qf2 Re7 a6 Re4 Qfb6 Rb7 Na8 Qd2 Re2 Qdf4 Re3 Qh2 Rc3 Rg4 Nd3 Qbb2+ Ka4 Rb1 Qe3 Re4 Nc1 Rf4 Ba5 Qb6 Bb4 Qc7 Qba7 Qb8 Qd2+ Rd4 Qdb2 Re4 Qe3 Rf4 Nab6+ Kc7 Kb3 Be6 Na8+ Kc8 Bf2 Rd4 Bg3 Rd5 Bf2 Ra5 Be1 Ra4
Q1bq1b2/b4Rrp/Q2B4/p1PN2qR/Nq1k1Pr1/7n/qnQ2N2/K4N2 w - - 0 1 legal: proof: e4 g5 a4 c5 h4 gxh4 d4 cxd4 Bc4 f5 exf5 b5 axb5 d3 c3 Bh6 Bb3 Bf8 Bc2 dxc2 Kd2 Kf7 b4 Kf6 g4 Ke5 f4+ Kd5 g5 e5 c4+ Kd4 g6 d5 f6 h3 g7 a6 f7 e4 b6 h2 b5 Qe7 b7 Nd7 b8Q Ra7 b6 Qg5 b7 Ngf6 g8N Nb6 Nh3 Na4 Ne7 Nb2 Qd6 Ng4 b8Q Nf2 Qa8 Rg8 Ra3 Rg7 Rb3 a5 Qa6 Rc7 Rb7 Rc6 Qe2 Rh6 Qd1 Rh4 Ra7 Rg4 Rd7 Kc5 Kc3 e3 Nd2 e2 Nf1 e1Q+ Bd2 c1B Qc2 d4+ Kb3 d3 Ka2 Nfd1 Ka1 Nf2 Nd5 Kd4 Bb4 d2 Bd6 d1Q Re7 Qb4 Rb7 Be7 f8N Qd3 Nd7 Bf8 Rc7 Be3 Nc5 Qe2 Na4 Qd8 Ng5 Nh3 Ne4 Qf2 Rf7 Qg5 Rg1 h1Q Rg2 Qd8 Rh2 Qhg2 Rh1 Qfh4 Nf2 Qhg5 Rh2 Ng1 Rh6 Nh3 Rh5 Qh1 Nc7 Qhd5 Nd3 Ke4 Nf2+ Kf3 Qb8 Ba7 c5 Qdc4 Nd5 Qcb3 Nd3 Ke4 Qa8 Kd4 Nf2 Qa2+
K2R4/B4p1r/N4P2/k1BP1Rn1/4qbqb/r4Q1n/1p2B1R1/QqqB2r1 w - - 0 1 legal: proof: e4 b5 b4 g5 f4 d5 f5 dxe4 a4 c5 axb5 cxb4 g4 Nf6 Nc3 Nh5 Nd5 Be6 Nf4 gxf4 Ra6 Bd5 Ra1 Bc4 h3 Be2 g5 Bg4 hxg4 Nf6 Rh2 Ng8 Rh6 Qc7 Rh1 Qd8 Ke2 Kd7 c4 Kc7 d4 Kb6 d5 a5 g6 e5 f6 h5 g5 f3+ Ke3 a4 c5+ Ka5 b6 a3 g7 f2 g6 a2 c6 b3 c7 b2 c8Q h4 b7 h3 Nf3 h2 Qc4 Ne7 g8B Qc8 g7 Rh7 Ng5 Ng6 Qce2 Na6 b8B Nc5 Ba7 Bd6 Ne6 Nf4 Rg1 h1Q Nc7 Qg4 Rg2 Nce6 Na6 Nh3 Qf3 Neg5 Be2 f1R Rb1 a1Q Bc5 Rh5 Bh7 Rg1 g8R Rh6 Bg6 Rh7 Rd8 Bc7 Bh5 Ra7 Kd2 e3+ Kd3 e4+ Kd4 Bf4 Kc4 Ra8 Ba7 Qa4+ Kc5 Qb4+ Kc6 Qc3+ Bc4 e2 Kb7 e1B Be2 Bh4 Bce3 Qc1 Bec5 e3 Qdf1 Qc2 Bd1 e2 Rc1 Qc3 Rc2 e1Q Rcf2 Qe4 Qe1 Rc8 Be2 Rc6 Ka8 Rb6 Rf1 Rb3 Qa1+ Ra3 Qg3 Bc7 Rf5 Bf4 Qd3 Qc1 Bd1 Qg3 Bhe2 Qg4 Qf3 Qh2 Rb8 Qhg3 Rc8 Qe1 Rd8 Qeb1 Rb8 Qb4 Rd8 Q4e4
3b4/1q2Pr1q/B1r1RQnr/4pKB1/Bkp2N1b/Nr3n1q/1P4Q1/N6N w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 bxa4 g4 h5 c3 hxg4 c4 Ba6 e4 Ke7 e6 f6 e5 Bb5 cxb5 Ke8 e7 Kf7 e6+ Kg6 Ra3 Kf5 Re3 Kg6 Re5 fxe5 Qe2 Kf5 Qd1 Kf6 Kd2 c5 Kd3 d5 e8B Ke7 f4 Kd6 h4 g5 h5 a5 b6 c4+ Ke3 Kc5 f5 a3 b7 d4+ Ke4 a2 h6 a1Q f6 d3 h7 d2 f7 a4 Rh5 g3 Bd3 a3 Bf1 g2 Qe1 d1R Nh3 g1B Kf5 g4 Bh6 g3 Kg6 a2 Rf5 g2 Qc3 Qd7 Na3 Bf2 Qg3 g1Q Bg2 Nc6 b8N Qh2 Rf6 Rd6 Kf5 Qah1 Bg5 Be7 f8Q Qb7 Nd7+ Kb4 Nc5 a1R Nb3 Rf1 Na1 Rb8 Be4 Bb6+ Nf2 Bbd8 Qg2 Qg3 Bc2 Qh5 Ba4 Qgh3+ Ke4 Qf7 Nh1 Nd4+ Bec6 Nf3 Rg6 Qc7 Bcb5 Rc6 Ba6 Qb7 Qg7 Bf6 Rh6 Ne7 Qg6 Re8 h8N Qh7 Qf5 Rg8 Ng6 Rh8 Nf4 Ng6 e7 Rf2 Bh4 Bg5 Qf6 Rf1 Bf2 Bh4 Be3 Rf8 Bc1 Rf7 Be3 Rd1 Bc1 Rdd6 Be3 Qh2 Kf5 Qh3+ Qg4 Qb6 Ne2 Ka5 Bg5 Nf4+ Rg6 Rf8 Qf7 Qa7 Ke4 Rb3 Qg2 Qb7 Qf5 Kb4 Rh6 Ne6 Nf4 Rf7 Rf6 Nf8 Rh6 Rg6 Qe6 Rg8+ Qf5 Rgg7 Re6 Rg6 Qf6 Rh6+ Qf5 Ng6 Qf6 Qh2 Kf5 Qh3+
1N3nk1/n1N1P1bb/1Rr1r1BQ/1Q1p2B1/2P1q1Bb/3qb2p/1QB2r2/5K2 w - - 0 1 legal: proof: f4 c5 b4 g5 c4 b5 h4 e5 a4 exf4 axb5 Na6 Ra3 Nb8 d4 cxd4 Rc3 dxc3 hxg5 Qf6 Qd4 Qb6 Qd1 Qd8 e4 h5 g4 a5 e5 f5 e6 d5 g6 c2 g5 a4 g7 a3 g6 h4 b6 a2 b7 a1B b5 h3 b6 f3 Bf4 c1B Nc3 f2+ Ke2 Nf6 g8B Bg7 Bh7 Kf8 Qd2 Ra6 Nb5 Nc6 b8Q Nd7 b7 Qh4 Bg5 f4 Nf3 Baf6 Nfd4 Na7 Nc7 Rc6 Bg2 f1R Bf3 Be7 Bg4 Rf2+ Ke1 Rg2+ Kf1 f3 Qb2 f2 Rh2 Rd6 Nc6 Be3 Qa8 Rg8 b8Q Bd8 Q8b5 Rh8 Nb4 Rc6 Nba6 Be7 Nb8 Rg8 Bd1 Qe4 Bc2 Rh8 Qab7 Bd8 Q7a6 Bdf6 Bg8 Rh6 Bf7 Bd8 Be8 Kg8 Rh1 Bdf6 e7 Nf8 Bd7 Rh2 Bg4 Bf5 Rg1 Be5 Qab6 Bg3 Q6a6 Bh4 Qab6 Bc3 g7 Rhe6 Rh1 Bh7 Q6a6 Kf7 g8B+ Kg7 Bf7 Rg2 Bg6 Kg8 Qaa5 Bg7 Qd2 Rh2 Ke2 Rg2 Ra1 Rh2 Ra6 Rg2 Rb6 Rh2 Qe1 f1Q+ Kd1 Qfg2 Bf4 Qd3+ Qd2 Qge4 Bh6 Rf2 Ke1 Re2+ Kf1 Bed4 Qg5 Bg1 Qh5 B1d4 Bg5 Be3 Qh6 Rf2+
1K3k2/Bp1Rb3/2BB1rP1/q3Nb1B/PQn2N2/N1nrpb2/5b2/Q2q1n2 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 d5 cxd5 fxe4 Qf3 axb4 Qb3 Ra6 Qd1 Ra8 fxg5 h5 g4 Be6 a3 Na6 g6 Bc8 g5 Nb8 a4 Ra7 Ra3 Ra5 Rg3 Ra8 Rg4 hxg4 Kf2 e5 Kg3 c5 h4 e3 d4 e4 Kf4 g3 Ke5 e2 d6 e1N d7+ Ke7 g7 g2 d5 e3 d6+ Kf7 h5 c4 h6 b3 h7 b2 Nf3 g1B Qd2 c3 Bb5 c2 Na3 b1B Bc6 Ba2 Qb4 Nf6 g8B+ Kg7 g6 Nd5 Be6 Be7 Bg4 Kf8 Bh5 Qa5 d8B Bf2 d7 Ra6 Bb6 Nc3+ Bc5 Bc4 d8N Bd5 Ba7 Bf5 Rf1 Rg8 h8Q Rb6 Bb2 c1Q Rh1 Qd2 Rh4 Qd1 Rd4 Na6 Bc1 Nc5 Bd2 Bde4 Rd7 Nc2 Be1 Bd5 Bd2 N5e4 Ne6+ Ke8 Qg7 Ng3 Nf4 Nf1 Qh8 Kf8 Be1 Bg1 Bg3 Bf2 Bh2 Bd3 Bg3 B5e4+ Ke6 Be2 Ne5 B2f3 Rd6 Bd3 Kd7 Bf5+ Kc7 Ra6+ Kb8 Rb6 Nb1 Na3 Rd7 Nc4 Na3 Ra6 Nf7 Rb6 Qd4 Rg7 Ne5 Rf7 Bh2 Rf6 Bg3 Rb5 Bh2 Rd5 Bg3 Ne2 Qa1 Rd3 Nh3 B5g4 Nf7 Be1 Bd6 Bf5 Nf4 Nc3 Ne5 Bf2
b7/npPP1krq/R7/q2rQ3/1Qn2NqQ/7N/R3qpNB/1K1Qbb2 w - - 0 1 illegal: Other
4b1Qr/1Q4B1/b1RK4/BrbBn3/B1N3Nq/bP2pbbp/N2P4/2n4k w - - 0 1 illegal: No possible last move, all moves rejected
5b2/r1RQ3K/1r1b1pn1/r2RN2n/2PQq1bP/1kBRr1R1/N5p1/Q4b2 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 Nh6 f5 Ng8 f6 Qb6 Bg5 Qc7 Bc1 Qd8 g4 exf6 g5 Bb7 g6 Bc8 gxf7+ Ke7 Bh3 h5 Bg4 hxg4 Kd2 Kd6 Kd3 Kc5 Ke4 Kc4 Kf5 g5 Kg6 a5 h4 d5 e4 g3 b4 a4 c3 g4 b6 a3 b5 a2 b7 d3 b6 g2 e5 d4 e6 g3 e7 d2 e8R d3 Qg4+ Qd4 Nf3 d1R Qf4 g1B Bd2 g2 Ne5+ Kb3 c4 Na6 b8R Nb4 b7 Ra7 Rd8 Re1 Rd5 Re3 Nc3 Bh2 Rhd1 Bg4 Rc8 Qe4+ Qf5 Be2 b8Q Bf1 Rc7 Bg3 Rac1 a1R Qb6 R1a5 Qd4 Rh7 Be1 d2 Na2 Nd3 Qa1 Rh5 Rc2 Rg5+ Kh7 Ne7 Qd4 Ng6 Qd7 Ndf4 Rc3+ Kb2 Rd3+ Kc2 Rb1 d1B Rbb3 Nh5 Bc3 Bg4 Ra3 Rb5 Rb3 Rb6 Ra3 Bh6 f8Q Bh2 Rb3 Rf5 Qa3 Bf8 Nc1 Bf4 Qa1 Bg3 Na2 Rg5 Rb1 Bh2 Re1 Kb3 Re2 Bg3 Rf2 Bh2 Rf3 Bf4 Rg3 Rf5 Nf7 B4d6 Ne5 Rb5 Nf3 Rb4 Ra5 Rfb5 Ne5 Rb6 Rac5 R4b5 Rd5 Rba5
1r6/n7/N1p1NQNr/kNK5/1r1bbQ1R/3Rpn1P/P1r1Q2n/qn2B3 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f6 Be2 f5 exf5 gxf4 g5 Nd7 Bf3 Nb8 Bg4 hxg4 Ke2 Kd7 Kd3 b5 Kd4 e5+ Ke4 g3 d4 g2 g6 f3 f6 f2 g7 f1R d6 Kc6 d7 Kb6 Kd5 b3 f7 e4 Nf3 g1N Ne5 b2 Bg5 b4 Nd3 e3 Nc3 b1R Nb5 b3 Nc5 b2 Qe2 Ka5 Bh4 Nc6 Na6 Bb4 f8Q Bc3 Kc5 Rb8 d5 Rfc1 d6 Nh6 g8N Qf6 d8Q Nf3 d7 Bb7 Be1 Rc2 Ne7 Na7 Ng6 Be4 Qd6 Ng4 Qf4 Qg7 Qdf6 c6 d8N Rh6 Ne6 Qh8 h3 Ngh2 Rf1 Rd1 Rg1 b1N Rg4 Rd4 Rh4 Qg7 Nd6 Rdb4 Nb5 Nbd2 Rd1 Nb1 Nh8 Qg1 Rd3 Qh1 Ng6 Qf1 Bf2 Qc1 Bg3 Qb2 Bf2 Qa1 Be1 Bd4+
1rR1r1R1/1R1Qnp1P/1pq4b/2N4B/5k1n/n1n1b2P/N1b1KN1N/Q1b5 w - - 0 1 legal: proof: b4 d5 a4 a5 g4 e5 f4 exf4 c4 axb4 cxd5 h5 Ba3 bxa3 gxh5 Bc5 Qc1 Bb4 Qd1 Bf8 e4 Kd7 d4 Kd6 a5 c5 a6 g5 h6 b6 a7 g4 h3 a2 h7 g3 Nf3 c4 Be2 g2 Nc3 g1N Nh2 Na6 Bh5 Rb8 a8R Nf3+ Ke2 Qc7 Rg1 Ne7 Rg8 Qc6 Qa4 Bf5 e5+ Kd7 e6+ Kd6 Re1 a1B Na2 c3 Rd1 Re8 Rc8 c2 Rd3 c1B Rd1 Ng6 e7 Bh6 Rd2 Nc5 Rd3 Kd7 d6 Ke6 d5+ Ke5 d7 Bd4 d8N Ne4 d6 Bde3 d7 Nfh4 Nb7 f3+ Ke1 f2+ Ke2 f1N d8Q Bhg5 Nc5 Bh6 Rd7 Nfd2 Rb7 Nb1 Qd7 Na3 Qad4+ Kf4 Qa1 Rd8 e8N Ne7 Nf6 Re8 Nfg4 Nc3+ Kf1 Be4 Nf2 Bc2 Rf8 Rg8 Ke1 Rg6 Rg8 Re6 Kf1 Re4 Ke1 Ra4 Kf1 Ra8 Ke1 Rb8 Kf1 Ncd5 Ke2 Nc3+
1Q4nB/QBrN1bn1/1n1B1pR1/5PB1/1bQ1b1N1/2q5/1b1P1bkp/3K3q w - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 e4 b5 exd5 c5 Ra2 Ra7 Rc2 cxb4 c5 Rb7 Rc4 bxc4 Bd3 Nc6 Bf1 Rb5 axb5 Nb8 f4 Kd7 g4 e5 f5 h5 c6+ Kd6 g5 b3 b6 h3 g6 e4 g7 Ke5 b7 Kf4 d6 Kg3 c7 c3 d7 c2 Nf3 e3 Be2 a4 Ba6 h2 Ne5 e2 Nf3 b2 Ne5 h4 Nc6 a3 Na7 a2 Bc4 a1Q Na3 b1B Bb2 c1B Nc2 h3 Ba6 Qf6 d8B Bb4 Ne3 Qc3 Bg5 Be6 c8Q Nd7 Nc6 Nb6 Ng4 Rh7 b8B+ Kg2 Bd6 Be4 Nb8 B6d5 Rf1 h1N Nd7 h2 Qb8 Ng3 Bb7 Nh5 Rf3 Qa8 Qa4 Bb3 Qaa7 Bbd5 Ba3 Bb2 Be5 Bb3 Rd3 Bc4 Rd6 Bcd5 Rg6 f6 Bd6 Bf7 Bf8 Nh6 g8Q Ng7 Bd6 Qb3 Qgc8 Ng8 Qc4 Qc3 Bf8 Ba5 Bae7 Bb4 Bd6 Kh1 Kf2 e1B+ Ke2 Bf2 Kd1 Kg2 Ba6 Ne8 Bg7 Qd5 Bh8 Ng7 Qac7 Qa8 Bb7 Qa1+ Ke2 Qh1 Q7c5 Be1 Kd1 Bf2+ Qf1+ Kf3 Qd5 Ne6 Qa5 Be8 Nc5 Rc7 Nd7 Ng7 Qaa7 Bf7 Be7 Kg3 Bc5 Bg1 Qc4 Kg2 Bd6 Bf2+
1r6/2B2K1P/Bn1R2Qr/1N2P1rr/N3pn2/N1N1q1pQ/3bq1Q1/1r1qk3 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 d6 g4 Bb7 b4 Na6 c4 Nb8 b6 Bc8 b5 h5 d4 hxg4 c5 Bb7 Ra2 Ba6 c6 Bb7 Re2 e5 cxb7 exd4 e5 Qe7 Re3 Qd8 Re4 fxe4 Kd2 Kf7 f4 Ke6 h4 Kd5 f5 g5 f6 c5 f7 a5 h5 c4 h6 d3 Ke3 d2 Bd3 a4 Qe2 d1R Qa2 a3 Qa1 a2 Rh5 g3 Bd2 g4 Kf4 c3 Kf5 Kd4 Kg6 d5 Qb2 a1R Na3 Bb4 f8Q g2 Qf5 Nd7 b8N Ngf6 b7 Rdb1 Kf7 Nb6 Nd7 Rb8 Nc5 Ra2 Rh4 Nh5 Qg6 Nf4 Na4 Qd6 Be1 Ke3 Ne2 c2 Nec3 c1Q Rh1 g1R Qg2 d4 h7 g3 Be2 d3 Rh6 d2 Qh3 Rbg8 b8N d1Q Nc6 Q6d2 Nd4 Rh1 Qg2 Rh5 Bf1 Nd7 b6 Q2e2 b7 Nb6 b8Q Raa1 Bf2+ Kd2 Ndb5 Ba5 Bc5 Ke1 Bd6 Qce3 Bc7 Ra2 Qe8 Rc2 Qge6 Rgg5 Qeh3 Ra2 Qee6 Rb8 Qef5 Rd2 Rd6 Rd5 Qg6 Rc5 Nd5 Bd2 Ndc3 Rc6 Na7 Q2f3 Ba6 Qfe2 N7b5 Qc1 Rd3 Re6 Rd6 Qcd1 Qgf5 Reh6 Qe6 Q3f3 Qg6 Qfe3
4n1BK/3QNn1p/2Rnq3/N1N1P1p1/2Br1n1k/P1qq1Q2/5N2/2n1r1Bb w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 f5 b4 axb4 g4 fxg4 d6 e5 h4 g6 a3 Be7 h5 Nf6 h6 Bf8 d5 Bg7 hxg7 Ng8 Ra2 Qf6 Rd2 Qd8 Rd4 exd4 Kd2 Kf7 Kd3 Kf6 Ke4 c5 f4 b5 e3 c4 f5 Kg5 Ke5 g3 f6 g2 d7 b3 d6 d3 e4+ d2 f7 c3 f8N c2 Nh3+ Kh4 Qf3 d1N Bh6 g1N Bc4 c1N Ke6 g5 Kf7 b4 Qf5 b2 Qf1 b3 Ne6 Ne3 Qd3 Nc6 Qe2 Nf5 Nc3 b1Q Nc5 b2 Qf3 Qa2 Nf2+ Nh3 Nd5 b1Q Ne7 Qa5 d8N Bb7 d7 Nf6 g8B Ne8 Bg7 Qd3 Bd4 Qac3 e5 Rc8 Rg1 Nfd6+ Kf8 Ba8 Ndb7 Nf4 Na5 Nd8 Rg3 N8f7 d8Q Rb8 Qd7 Rb2 Rg1 Re2 Rd1 Re1 Rd2 Nc7 Kg7 Qab3 Rc2 Qb6 Qe2 Bh1 Qf3 Qc6 Rb2 Qd5 Rb6 Qe6 Rc6 Nh6 Bf7 Rd8 Bg8 Nce8+ Kh8 Rb8 Nh3 Rb4 Bg1 Ra4 Nf2 Rb4 Bd5 Rd4 Bc4 Nhf7+
2n1Q1Nk/1b2R1b1/q2q1B2/Q1R5/1K5P/p1nR1p2/P1bNQr1Q/1n3nq1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 g4 c5 bxc5 dxc4 Bb2 f3 Ba3 Qf6 Bc1 Qd8 Nh3 f5 Ng5 h5 Nh3 a5 Ng1 b5 Bg2 f4 Bh3 Ra7 Bb2 Rf7 Bc1 Rf5 gxf5 Ne7 Bg4 hxg4 Qb3 Ng8 Qa4 Ne7 Qd1 Ng8 h4 Kf7 d4 g5 Kd2 Kg7 Kc3 g3 e4 g2 e5 b4+ Kb2 c3+ Kb3 c2 c6 a4+ Kc4 b3 c7 f2 e6 f1N d5 g4 e7 b2 e8Q a3 d6 g3 d7 Na6 Nd2 b1B Qde2 Nb4 Nh3 g1Q Nf2 g2 Ng4 Nd5 Nh6 Nge7 Bb2+ Nc3 Rh3 c1N Ng8 Nb3 Kb4 Bb7 c8R Qa7 Rd3 g1Q Rc5 Bc2 Re1 Qa6 f6+ Kh7 f7 Bg7 f8Q Nc8 Qd6 f3 Ne7 Rg8 Qdh2 Kh8 Ba1 Qc7 d8Q Qcg3 Qa5 Qgd6 Qea4 Re8 Ng8 Re5 Qe8 Re6 Qd1 Re2 Bb2 Rf2 Re7 Qg5 Qe2 Qg1 Nb1 Nbd2 Ba1 Nde4 Nd2 Nb1 Bf6 Nec3
N2qn1rB/4Br1Q/5nq1/qn3N1P/3Np3/1NbP4/RQ1K2pn/1B2r1k1 w - - 0 1 illegal: No possible last move, all moves rejected
3rnQ2/7b/bqb1Rr1Q/1p2RPbp/k3q1q1/6P1/r1R2NNK/NB3N2 w - - 0 1 legal: proof: b4 d5 f4 a5 e4 axb4 c4 f5 cxd5 Nd7 g3 Ndf6 h3 Ng4 hxg4 fxe4 Bb2 g5 f5 Nf6 Be5 Ng8 Bf4 gxf4 Kf2 Kd7 Kg2 c5 a4 e5 d4 h5 a5 c4 a6 c3 d6 Kc6 g5 c2 g6 c1Q a7 f3+ Kh2 e3 g7 e2 d7 Kb5 d5 b3 d6 e4 Nd2 b2 Ra6 b1B Qc2 f2 Nh3 Nf6 g8Q Qb6 d8N e3 d7 Be7 Nc6 Qd1 d8N Be6 Na5 Ne8 Nab3 Bg5 Qc1 Be4 Qf8 Bc6 Na1 Bg8 Ne6 Bh7 Nef4 Qa4 Bg2 f1B Nf2 e1Q Be4 e2 Bb1 Qad4 Ng2 Qg4 Ra2 Rg8 Rc2 Ka4 Rg1 Rd8 Rh1 Rg6 Rg1 Rf6 a8R+ Qa5 Ra6 b6 Nc4 Qb4 Nd2 e1R Rh1 Qbe4 Rg1 Bc4 Nf1 Re3 Qd2 Ra3 Qdd6 Bd3 Qh6 Ra2 Qdf8 b5 Rb6 Bb7 Re6 Qb6 Nd2 Ba6 Re1 Bc4 Nf1 Bd5 Re3 Bc6 Ree2 Qd5 R2e5 Qde4
1b2R3/3qqb2/1q1N1Pn1/1QNQQnrB/b1Kp3N/p1PRN3/2n5/2k1b3 w - - 0 1 legal: proof: d4 a5 g4 b5 e4 c5 a4 cxd4 axb5 f5 f4 fxe4 f5 h6 g5 Ra6 Bd2 Rf6 gxf6 Qb6 Bc1 Qd8 Bg5 hxg5 Kd2 Kf7 h4 d5 b4 e5 c3 d3 h5 e3+ Kc1 g4 Kb2 g5 Kb3 e4 b6 a4+ Kb2 a3+ Kb3 e2 b5 e1B h6 g3 h7 g2 b7 g4 b6 d2 Qe2 d1B+ Qc2 e3 Nh3 g1Q Bc4 g3 Nf2 g2 Nd2 e2 Nfe4 Nh6 Nc5 Nc6 b8Q Rg8 b7 Qd7 Qe5 Ne7 b8Q Rg5 Nf1 Ng6 Qb5 Bd6 Ne3 Bb8 Rh3 Qh2 Kb4 g1Q Qce4 Ba4 Bd3 d4 Kc4 Qf4 Bc2 Qh4 Bd1 Qg2 Qeb7 Qc6 Rg3 Qb6 h8N+ Kg8 f7+ Kh7 Qa8 Qe4 f6 Nf5 f8N+ Kh6 Qad5 Bb7 Qf4 Qee7 Nf7+ Kh5 Nd6 Bc6 Qde4 Ba8 Qfe5 Bd5+ Kd3 Bf7 Q4d5 Kh6 Kc4 Kh5 Ra2 Kh6 Rd2 Kh5 Rf3 Kh4 Rf4+ Kg3 Re4+ Kf3 Rd3 Bd2 Bb3 e1N Bd1+ Kf2 Bh5 Nc2 Nfe6 Be1 Nf4 Ba7 Nfg2 Bb8 Rg4 Ke2 Nh4 Bd2 Re4+ Ke1 Ng4+ Kd1 Ne3+ Kc1 Qf4 Qed8 Re8 Be1 Qe5 Q8e7
q5Q1/R2r4/BRp4q/2bnNr1p/rB2P1P1/bb5k/1Q2rq2/2RBB1K1 w - - 0 1 illegal: No possible last move, all moves rejected
2Q1R1Q1/RrKbq1P1/7p/1r2PQN1/1k1Bnrp1/1qb2B2/1R6/bb1q1Q2 w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nh3 cxd4 Ng1 e5 Nd2 e4 h3 g5 Nc4 g3 Ne5 Nc6 Nd3 exd3 h4 g4 Ra2 Ne5 Ra4 Nf7 Ra1 Ng5 hxg5 Be7 Ra5 Bc5 Ra1 Bf8 Kd2 Ke7 e4 Kd6 f4 Kc5 b4+ Kc4 f5 d5 g6 a5 e5 a4 f6 h6 g7 g2 f7 a3 b6 a2 b7 Qe8 b8R Ra5 b5 Kc5 c4 Be7 f8Q Bd7 b6 Kb4 b7 Nf6 c5 Rb5 Nf3 g1R Bg2 Rf1 Ng5 Rf4 c6 Qf7 c7 Ne4+ Ke1 d2+ Ke2 d3+ Ke3 Bd6 Kd4 Qe7 Qf1 d1B c8Q d2 Bf3 Bc2 Rh2 Bb1 Qf5 d1Q+ Rd2 Qb3 Rb2 Rf8 Be3 Rf7 Qg8 Bc7 Re8 Ba5 b8Q Rf6 Rc2 Rfb6 Qc8 Rb7 Rb2 Bd3 Rc1 a1B Rc7 Bb1 Bf2 Ka4 Bg1 Bd2 Be3 Kb4 Bg1 R7b6 Ra7 Rb7 Bf2 Bc3+ Ke3 Nc5 Bg1 Rc4 Bf2 d4+ Kf4 d3+ Ke3 Bd4+ Kf4 d2 Bg1 Nd3+ Ke4 Nc5+ Kd5 d1Q Be3 Qd8 Kd6 Bc3+ Q1d3 Rf4 Bd4 Be6+ Kc6 Qe7 Qf1 Ne4 Ra6 Rb8 Ra7 Bd7+ Kc7 R8b7+
q2bb3/4RPN1/r1kP1qQK/1Npn4/N4r1R/b2pN3/2R3qr/1b1B1Q2 w - - 0 1 legal: proof: d4 b5 c4 e5 a4 exd4 axb5 g5 h4 gxh4 Bh6 d5 Bc1 d3 e4 f6 e5 d4 e6 Na6 Bf4 Nb4 Be5 Nd5 cxd5 fxe5 Kd2 h5 b4 c5 f4 a5 g4 h3 b6 h4 e7 Kd7 e8N e4 f5 h2 g5 h3 f6 a4 b5 a3 b7 a2 b8R Be7 b6 Bf8 d6 Be7 b7 Ra7 f7 Ra4 g6 Bf6 g7 Ne7 g8N Kc6 Na3 Bf5 Rc1 a1R Ng7 Nd5 Nb5 Rh5 Rc2 e3+ Ke1 e2 Kd2 Rb4 Nh6 Ra6 Ng4 Rh8 Ne3 e1B+ Kc1 Bg5 Ne2 Qf6 Re8 Rba4 b8Q Bb4 Re7 Ba3+ Kd2 Be4 Rg1 h1Q Rg4 h2 Qg8 Qg2 Rh4 h1Q Qh7 Bf5 Qg6 Bd7 Qe1 Be8 Qf2 Rh6 Nec3 Rc4 Be2 Qa1 Rg4 Rh2 Rh4 Rb4 Bd1 Rba4 Ke1 d2+ Ke2 Rc4 Kd3 Rb4 Qf1 Rc4 Bf3 d1B Ke4 Rb4 Na4 d3+ Rc4 Qg1 Bh5 Bc2 Be2 Bb1 Bd1 Qfd4+ Kf5 Qg2 Rc2 Bf6 Ree4 Bd8 Re7 Qdb2 Ng4 Rc4 Kg5 Qf6+ Kh6 Rf4 Ne3 Qab2 Nbc3 Qb7 Nb5 Qa8
2n1N2Q/1np1r3/4RR1q/nq3B2/K1PQ2P1/Q3r3/1R1Rrp2/n1N2qkb w - - 0 1 legal: proof: a4 b5 axb5 g5 b3 d5 f4 gxf4 e4 dxe4 g3 f3 g4 Bh6 Bb2 Bf4 Bg7 Bg3+ hxg3 Ba6 Qe2 Bc8 Kd1 Bf5 Bd4 Bc8 Bf2 e3 Kc1 exf2 Qe1 Na6 Qd1 Nb8 Kb2 Kd7 Ka3 Kd6 c4 Ke5 d4+ Ke4 b6 Ke3 d5 a5 b7 e5 d6 f5 g5 h5 g6 a4 b4 h4 d7 f4 g4 e4 b5 h3 g7 h2 b6 Rh7 Bg2 f1Q Qc1+ Kf2 Nd2 e3 Nb3 e2 Nd2 e1R Qb2 Qg5 d8R Nc6 b8Q Re3+ Qc3 Qb5 b7 Na5 Re1 Ne7 g8Q Bd7 Nb1 Nc8 Qf8 Rhe7 Nd2 Bc6 Ne2 Bd5 Rg1 h1Q Nc1 Qh6 Qa7 Be4 b8R Nb7 Qd4 Ra6 Qfh8 Rae6 Rh1 Bc6 Rh2 Kg1 Rd6 f2 Ne4 f3 Nf6 Re2 Ne8 R6e3 Re6 Bd5 Rd1 Be4 Rd2 Bc6 Ka2 a3 Rh5 Bd5 Rf5 Be4 Rff6 Bd5 Ka1 a2 Qb4 Bc6 Kb2 a1N Bh1 Qe1 Ka2 f1N Qa3 f2 Be4 Qd1 Bf5 Bh1 Rb2 Nd2 Rc2 Ndb3 Rd2 Re5 Kb2 Qf1 Kc3 Qa6 Kb4 N3a5 Ka4 R5e3 Rc2 Nbd6 Rbb2 Ndb7 Rd2 Qb5+
8/N2R3Q/1Nnr1r2/Pnp4n/3nnkBp/3b3q/QNQ1P2R/2Kn2rQ w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Na3 f5 Nb1 f4 h4 g3 Bb2 Ra4 Bd4 Be7 Bf2 Bg5 hxg5 Nh6 g6 Bg4 Qc2 gxf2+ Kd1 Bd7 g4 Ra7 g5 Ra8 Kc1 Ng8 Qd1 Bc8 d4 Kd7 a4 Kd6 a5 f5 g7 h5 g6 b5 Bg2 f1N Qb3 c5 Qc2 b3 Na3 b2+ Kb1 f3 Rh4 f2 Qd2 f4 Qb4 f3 Qe1 b4 Rh1 h4 Kc2 b1R Nh3 Nd2 Nf4 f1N Nd3 f2 Nb2 Nh6 g8Q Ba6 g7 Ne4 Qh7 Nfg3 g8Q f1N Bf3 Nh5 Rh2 Qd7 Bg4 Nc6 Ra2 Nf5 Nac4+ Kc7 Ra1 Rf8 Nb6 Kd6 Qc3 Re1 Rd1 b3+ Kc1 Rf6 Qc2 N1e3 Qgf7 Rd8 Qfg8 Rg1 Qgf7 Kc7 d6+ Kb7 d5 Bd3 Qe6 Nfd4 Qef7 Kb8 Qfg8 Qe6 d7 Kc7 Qgf7 Kd6 Qfg8 Ke5 d6 Rc8 d8Q Kf4 d7 Ra8 Qc8 Ra6 d8N Qd7 Qa8 Rd6 Bf3 Qh3 Bg4 Rf6 Re1 Nd1 Qab7 Nb8 Nc6 Rd6 Na7 Rf6 N6c4 Rad6 Qbd5 Nbc6 Nb6 Ndc3 Rd1 Ncb5 N2a4 Nf2 Qh1 b2+ Kd2 b1N+ Kc1 N1c3 Qga2 Nfe4 Nb2 Ke3 Rf1 Nd1 Rff2 Rfe6 Rf7 Rf6 Rd7 Kf4
n7/1QbbP3/1p3bbp/kNq4r/1N2QP1K/8/2BrbQRN/rbNR4 w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 e5 b4 axb4 d5 e4 d6 cxd6 Ba3 d5 Bc1 d4 h3 g5 Bf4 Nc6 Bd2 e3 h4 g4 Bh3 exd2+ Kf1 Ne5 Kg2 Qa5 Na3 Nf7 Nb1 Ng5 hxg5 Bh6 Kh2 Qb6 Bf1 Qd8 Kg2 Bf8 Kg3 d5 c4 Kd7 e4 Kc7 a4 Kb6 g6 h6 g7 b3 a5+ Ka6 c5+ d3 c6 b6 c7 d4 e5 b2 e6 Kb5 a6 Ne7 g8N Qd6+ Kh4 g3 f6 g2 f7 Qc5 a7 Bg7 f8Q Nd5 e7 Bd7 c8N Nc7 Nf6 Rg8 Nf3 g1B Qc2 d1B Nh2 Be2 Ra2 d2 Nd5 d1B Nd2 b1B Nb4 d3 Nb3 d2 Qe4 Bdc2 Nc1 d1R Bh3 Rd2 Bf5 Bcd3 f3 Be3 Rd1 Bf4 Rc2 Bd4 Nd6+ Ka5 Nb5 Rg5 Qf6 Bd6 f4 Ba1 Qfd4 Bc3 Qf2 Bf6 Be6 Bde5 Bb3 Bd6 Qb7 Bg6 Rb2 Rb8 Bc2 Na8 Rb3 Rf8 Rg3 Bc7 Rg2 Rd8 Bd3 Ra2 Bc2 Ra1 Qe4 Bde8 Rg4 Rd2 Rg2 Bd7 Qee3 Bd6 Qe4 Nc7 Na6 Bde5 a8Q Bd6 Qb8 Na8 Nb4 Bc7 Qbb7 Rh5+
1n1b1Q2/QKBQ2p1/r2p3R/q3R2r/1P1Q4/2n1nR1P/nr2B2k/3nN2r w - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ke1 h5 Nc3 f4 Nd5 Bb7 Ne3 Bd5 Bg2 Be4 Bf1 Bf5 gxf5 Bc5 Ng4 hxg4 Bg2 Be7 Bf1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 a5 e4 f2 c3 d6 f6 a4 b6 d3 Kb5 d2 c4 g3 c5 g2 b7 f3 f7 Kf4 c6 a3 c7 a2 Kb6 Nf6 e5 Rh5 e6 Ne4 e7 Nc3 e8R Be7 Be2 f1R f8Q+ Kg4 Rb1 a1N Rb3 Rf2 Bb2 Na2 Bd4 Nc2 Ra3 Bg5 Re5 Ne3 Qa1 d1N Qc3 Nc6 b8Q Ra6+ Kb7 Kh4 c8Q Qa5 Qd2 Bd8 Qa7 Nb8 Qd7 Nd5 Bb6 N5c3 h3 Kg3 Bc7 Nd5 Qdd4 N5c3 Bc4 Rb2 Be2 f2 Nf3 f1N Rg1 Nfe3 Ne1 Kh2 Rf1 g1R Rf6 Na4 Rh6 Rh1 Rc3 Ng2 Rce3 N4c3 Rf3 Nge3
2Qn4/6kN/r4r2/pr1pN2q/Q1n1rPq1/2nQB2P/b1Bn1K2/2N2NR1 w - - 0 1 legal: proof: f4 b5 b4 h5 a4 c5 axb5 e6 d4 cxd4 g4 hxg4 Ra3 Be7 Re3 Bg5 Re4 f5 e3 fxe4 f5 Bf4 exf4 Rh7 Bh3 Rh5 Bf1 Rh8 c4 Kf7 b6 g5 h3 a5 b7 d3 b5 d2+ Kf2 e3+ Kg3 e5 f6 e4 c5 e2 c6 e1R b6 e3 c7 e2 Bg2 Nc6 b8N Nh6 b7 Qe8 Qc2 d1N Ba3 Ra6 Qf5 Ne5 Bf1 Nc4 Be7 Rf8 Qc2 Nc3 Kg2 g3 Qa2 g4 Nd2 Rb1 Qa4 e1R Nc6 Re4 b8Q Rb5 Bc5 d5 Ne2 Bf5 Kg1 g2 Kf2 g1N c8Q Nf3 Nc1 Kg6 f7 Kg7 Rg1 g3+ Kg2 Bh7 Bd3 Qe5 Qbb7 Qh5 Nf1 Nfd2 Bc2 Bg6 Be3 Bf5 Kh1 g2+ Kh2 Bg6 Kg3 Bh7 Ne5 Bf5 Rh1 Bh7 Kf2 g1Q+ Ke1 Qgg4 Rg1 Rd8 f8N+ Nf7 Qbc7 Rdd6 Kf2 Rf6 Qd6 Nd8 Qda3 Bf5 Nh7 Rd4 Bb3 Bb1 Bc2 Ba2 Q3b3 Re4 Qba3 Ne2 Qd3 Nc3
1n2N3/1k2p3/n1bq3N/n3nBrr/4qQr1/P1Qp1Rr1/1P1BN3/1K1B2B1 w - - 0 1 illegal: No proof kernel
rQq1BB2/2npQ2R/3B4/Qqb1N3/QP4KN/3pqn1q/n1b1k1P1/n7 w - - 0 1 legal: proof: b4 a5 h4 e5 f4 exf4 a4 g5 Bb2 c5 Bc1 b5 axb5 g4 d4 cxd4 Ra3 Ra6 Rg3 Rg6 Rf3 Rg5 hxg5 gxf3 Kf2 Ke7 c4 Ke6 e4 Ke5 c5 f5 b6 h5 b7 h4 c6 h3 g6 a4 g7 h2 c7 a3 Qa4 a2 Nh3 a1N Qd1 Na6 b8B Bc5 Qb3 Bb7 c8Q+ Nc7 Bb2 Nf6 g8Q Nd5 Qh7 Nc3 Ng5 Na2 Qh5 Qg8 Rg1 h1Q Bc4 Qh3 Na3 Bc6 Qb7 Qc8 Rh1 Ba4 Bf7 Rd8 Qd1 Bc2 Qb6 Rf8 Be8 Rh8 Qh7 Rg8 Qa5 Rh8 Kf1 f2 Ke2 f1N Bc3 Nd2 Nc4+ Kf6 Ne5 f3+ Kf2 f4 Qh4 Nb5 Bd6 Nc7 Ng6 Rf8 e5+ Kf5 Nf7 Ke4 e6 Kd3 Qe7 Rg8 Rh2 Rh8 Nh4 Rg8 Kg1 f2+ Kh1 f3 Ne5+ Ke3 Bb2 Be4 Qda4 Bc2 Bc3 Ke2 Bb2 d3 Bd4 f1Q+ Bg1 Qg3 Rh3 Qg4 Kh2 Qc1 Be3 f2 Bh6 Rh8 Bf8 Qc4 Kg3 f1Q Rh2 Qb5 Kg4 Qf3+ Kg5 Rh6 Qg7 Bb1 e7 Bg1 Bf7 Qbb7 e8Q Qd8+ Bde7 Qb5 Nf5 Ra6 Rh7 Ra8 Nh4 Bc2 Bg6 Qdb8 Bd6 Bc5 Qge7 Qh3 Bf7 Q8b7 Qb8 Qc8 Be8 Nf3+ Kh5 Qh2 Kg4 Qe3 Kf5 Qh1 Kg4 Qh3+
1bK1N2k/p3r3/R1R5/1p1N4/PRP1r3/BRr1r1Q1/b1bqQbQ1/3q2q1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 Ne2 cxb4 Rg1 e5 Rh1 e3 Ng1 e4 Qh5 Nc6 Qf3 Qd6 Qd1 Qd8 Be2 h5 Bg4 f5 g3 Ne5 fxe5 f4 Bh3 Nh6 g4 Nf5 gxf5 Bd7 Bg4 hxg4 Ne2 Be6 Ng1 Bc8 Ke2 Kf7 d4 Kg8 h4 g5 c4 b5 f6 g3 e6 g4 h5 b3 e7 g2 e8Q b2 h6 g3 f7+ Kh7 d5 Bd7 d6 Qf6 Nd2 b1R Nh3 g1B Qc2 g2 Ba3 Bg7 f8Q Bf5 d7 Qd4 d8R Rc1 Rd6 Bf2 Rc6 g1Q Qd6 Be5 Qh5 Kg8 h7+ Kg7 Rh2 Rhe8 h8R Re7 Qg5+ Bg6 Qg2 Rae8 Rb1 Qd5 Rh6 Qd4 Qd1 Rc3 Rb3 Kg8 Qe1 Kg7 Qe6 Bb8 Qeg4 Qd5 Q4g3 Qg5 Rb4 Bh7 Ra6 Kh8 Rhc6 Bf5 Nf3 Qh6 Nfg5 Bh7 Ne6 f3+ Kd1 Qh5 Nc7 e2+ Kd2 Bf5 Qd1 e1R Nf4 Ree3 Qe2 Qh7 Qe1 Rg7 Nd3 Qh5 Qf4 Bh4 Qgg5 f2 Bb2 f1B a4 Bg4 Ba3 Bf5 Rg2 Re5 Ne8 Rge7 Rf2 B1h3 Qg2 Rg3 Qff3 Rg4 Nf4 e3+ Ke2 Qh6 Nd5 Bb1 Rf1 Bf2 Qfg3 R5e6 Kf3 Ba2 Qd2 Rh4 Rfb1 Bf5 R1b3 e2+ Qd3 e1Q Qe3 Bd3 Qe2 Rh2 Kg4 Qd1 Qd6 Re4+ Kf5 Qhc1 Kf6 Re3 Qdg3 R7e4 Kf5 Bc2 Kf6 Qcd2 Kf7 Be5 Ke7 Rh7+ Kd8 Bb8 Kc8 Rhe7
brqR1Kr1/1q1Q3B/1N6/4rQ2/QR1p2p1/bnkBnP2/P1p4b/1Q2R3 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 c5 b4 axb4 d4 h5 g4 d6 gxh5 Qc7 Bb2 Qd7 d5 Qc7 Bd4 Qd8 Nc3 cxd4 c5 Qb6 c6 Qa5 Ne4 Qd8 Nc5 dxc5 Kd2 Kf7 Kd3 b5 Ke4 e5 h4 g5 f6 b3 c7 g4 f3 b2 h6 b1R h5 c4 d6 Ke6 d7 b4 h7 b3 f7 b2 h6 c3 Nh3 c2 Bd3 Nc6 Re1 Ba3 f8Q Bb7 c8B Nge7 Qf5+ Kd6 Nf4 Kc5 Nd5 Rb8 Nb6 Kb4 Qc1 Rg8 h8R Kc3 h7 Ba8 Qd1 Qf8 d8Q Nd5 Qdd7 Na5 Bb7 Rc1 Rb1 Ne3 Qa4 Nb3 Qfd7 Nc4 Kd5 e4 Ke6 e3 Bbe4 Qc8 Kf7 e2 Qf5 Ne3 Qad7 Rg5 Rd8 Rg6 h8Q Rg8 Rh1 e1B Qhe5 Na5 Qee8 Bg3 Re1 Nb3 Qa4 Bf4 Qed7 Bh2 Qf6 Na1 Bh7 Nb3 Qff5 Nc5 Ra1 b1Q Ke7 Qb3 Rb1 Qd5 Rb4 Qdb7 Kf7 Rb1 Qc1 Rb3 Qb1 Rb2 Rb5 Rb4 Ke7 Nb3 Kf7 Rc4 Rb4 Rc5 Ke7 Re5+ Kf7 Rg7+ Kf8 Rg8+
2q3RB/1B1r1Nb1/2p2Pp1/p4b2/3NB1QK/2rb1Q1P/nrN2B2/1kq3n1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 b4 Nd7 g4 Ngf6 f5 Bb7 Ra6 Kf7 Qf3 Ke8 Qf4 gxf4 g5 Nb8 g6 Ng8 g7 Bc8 Rg6 hxg6 Kf2 Kf7 d4 Kf6 b6 e5 d6 a5 b5 f3 Kg3 f2 d7 c6 d5 e3 b7 e4 d6 Ke5 b6 Kd4 Na3 Kc3 Bb2+ Kd2 Ba6 f1B Ne2 Ne7 g8B Bg7 Nc2 Nd5 Ned4 Nc3 Bd5 e2 h3 e3 Be4 Qc7 d8B e1R Bh4 Bd3 Rf1 Nd7 b8Q e2 b7 Ne5 d7 Na2 d8N Rc1 Nf7 Rh7 Rf4 Bd7 Qf8 Qc8 b8Q Nf3 Bb7 e1Q+ Kg4 Kd1 Bf2 Ng1 Qbd6 Ra6 Qe6 Rb6 Ba1 Rb2 Qa3 Ba6 Qf3+ Kd2 Kg5 Bd3 Rh4 Kc3 Rh5 Qd2+ Kh4 Qe3 Qd6 Qh6 Qdf4 Be6 Q4g4 Kd2 Nb4 Rc3 Nbc2 Qe3 Rh6 Kc1 Rh5 Kb1 Rh6 Rh8 Rh5 Rf8 Rh8 Rd8 Rg8 Qc1 f6 Rbb3 Bb2 Bf5 Ba3 Rd7 Bf8 Bh6 Bg7 Rb2 Bh8 Bg7
B2qRRn1/R4n1P/3Bb1br/3N1nQ1/2pKP3/Q3p3/1pB2Br1/r1q4k w - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 e5 b4 exd4 c3 axb4 Bf4 b3 Bc1 b2 e4 f5 Bh6 b5 Na3 b4 Nc2 b3 Bc1 f4 Ne3 Bb4 cxb4 fxe3 Ke2 Ke7 Kd3 Ke6 h4 Ke5 f4+ Kd6 a4 b1N a5 g5 b5 c5 h6 g4 h5 g3 a6 b2 f5 Ke5 a7 Kf4 f6 d5 f7 g2 f8R+ Kg3 b6 Nd7 h7 Nc3 b7 Nb5 b8B+ Nd6 Nh3 g1R h6 Rg2 Nf4 Nf5 Qg4+ Kf2 Rh5 Kg1 Rg5 Kh2 Bd2 Kh1 Bd6 c4+ Kc2 d3+ Kc3 Rf2 Be1 d2 Bd3 d1Q Bc2 Rg2 Bf2 Qc1 Rg7 Ne5 Qg5 Be6 Re7 Nf7 Ree8 Nh4 Kd4 Nf5+ Kc5 d4 Nd5 d3 Ra6 Ng7 Kd4 d2 Ra2 d1B Ra5 Rc8 a8B Bh5 Ra3 Bg6 Ra7 Nf6 Bb4 Rc6 Bd6 Rg8 h8Q Nf5+ Kc3 Ra6 h7 Ra1 Qg7 Rh2 Qh8 Rh6 Qg7 Nh8 Qd7 Rg7 Qa4 Ng8 Qa2 Nf7 Qa3 Bh5 Qf4 Rg2 Qg5 Nh4 Kd4 Bg6 Bd1 Bef5 Ba4 Be6 Bc2 Nf5+
3Br2b/3q2pk/pr6/bnbQB2B/1n1q1q2/2P1p1N1/4QRRP/K3BQ2 w - - 0 1 illegal: Other
B1QNb2Q/2Pq1rpN/pnq4k/Bq6/1p5K/3n2P1/2Q1Q3/br2NrR1 w - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 exf5 c5 Ra2 cxd4 Bd2 b4 Be3 h4 Ra1 Qa5 c4 h3 g3 Qb5 axb5 Nc6 f3 Ne5 Ra2 Nd3+ Ke2 Nxb2 Ke1 Na4 Rc2 Nb2 Rg2 hxg2 Kf2 Kf7 h4 d5 c5 e5 h5 a6 b6 e4 f4 d3 b7 d4 b8N d2 c6 d3 c7 Ra7 h6 Bd6 h7 Bc5 f6 Kg6 f7 Nf6 f8Q Nd7 Nh3 g1R Qf5+ Kh6 Nc6 Nb6 Na3 Rf8 Qe2 d1Q Bg2 d2 Nc2 Bd4 Ne1 Rf7 Nd8 Qa4 Qc5 d1Q Qcc2 Ra8 Ng5+ Bh3 f5 Qc6 f6 Be5 Bc5 Nd3+ Ke3 Rf1 Rg1 Bd7 Bd4 Be8 h8Q+ Kg6 Nh7 Kh6 Bc5 Ba1 Bh1 Nf2 Kf4 e3 Bg2 Nd3+ Kg4 Rc8 Kh4 Rb8 Nb7 Rd8 Bd4 Rd5 Nd8 Rc5 Be4 Rc3 Bg2 Rb3 Be4 Qb5 Ba8 Qd2 Bc5 Qc3 Bd4 Qcc6 Bc5 Rb1 Bd4 Re7 f7 Rd7 f8Q Rdf7 Qf2 e2 Qfg8 Nc8 Bb6 Qd7 Ba5 Nb6 Nf3 e1Q Qfe2 Qc3 Ne1 Qcc6 Qf8 Re7 Qf5 Rf7 Qfg4 Qdd6 Qc8 Qdd7
4B1n1/2pKQ2B/4Qq2/P1B4p/b2qr2R/nP1kBrb1/1q3Q1p/2R1b2N w - - 0 1 illegal: No possible last move
5Qqr/p3bbB1/1K1NB1k1/R1R4p/1n2R3/2R2BpQ/P3P2q/3n1nqr w - - 0 1 illegal: Other
4N3/1p6/1bPP1Q1B/Qr2RNbp/r1Q3N1/2nK3n/1r1prr2/2qN1k1B w - - 0 1 legal: proof: b4 a5 h4 axb4 d4 d5 a4 f5 Ra3 c5 Re3 g5 Re4 gxh4 dxc5 d4 Rf4 Bd7 e4 Bc6 Rg4 Bd5 exd5 Bg7 Rf4 Bf8 Re4 fxe4 Kd2 Kd7 g4 e5 c4 h5 f4 e3+ Kc2 e2 g5 e1B d6 Ke6 a5 Kf5 g6 Ke4 c6 d3+ Kb3 h3 g7 h2 c5 Nf6 Kc4 b3 g8N b2 c7 Be7 c8Q Nbd7 f5 Nh7 c6 Ndf6 a6 Bf2 a7 Nd5 f6 Nc3 f7 Bb6 f8Q Ng5 Qc2 Nh3 Nh6 Bg5 Qf6 Rf8 Ne2 Qe8 Bf4 Kf3 Ng4 d2 Qcd8 e4 Ng3 e3 Kd3 e2 Nf5 e1R Qa4 Qg6 Qc4 Re2 Rg1 h1R Be3 Bh4 Bh6 Bg5 Qc7 Rhh2 Rg2 Re5 Re2 Rb5 Re5 Qg7 Be2+ Kg2 Bf3+ Kf1 Bh1 Re2 Qcd8 Na2 Nc3 b1R Qc7 R1b2 Nd1 Nc3 Qcd8 Bf2 Qa5 Bb6 Qd4 Qf7 Qe4 Qb3 Qeb4 Qa3 Qc4 Rae8 a8N Rd8 Nc7 Ra8 Qab4 Ra4 Qa5 Qa1 Ne8 Qc1 Re6 Rf7 Re3 Rf2 Re5 Re7 Rc5 Re1 Re5 Ree2
2BQ4/kp1p4/qnp3bR/BR4Q1/n1K4P/P1b4B/n3Nr1Q/B1n3rn w - - 0 1 illegal: No proof kernel forced: wxLB
4bBR1/2B4R/PB1p3P/qn1nN1pQ/Q1rb1kp1/3b1r2/R4r2/1K1Br3 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 a5 g4 axb4 e5 f6 exf6 Kf7 Ke2 Ke6 f7 Kd6 Ke1 Kc6 f4 Kc7 f5 h6 Nd2 Nf6 Ndf3 Ng8 Ng5 hxg5 Bb5 Kd6 Bd3 Qa5 Bf1 Kc7 f6 Qf5 gxf5 g4 Qd3 Kd8 Qe2 Rh3 Qd1 Rh8 Kd2 Kc7 c4 Kd6 Kc2 Ke5 h4 b5 a4 g5 a5 d6 a6 b3+ Kb2 d3 h5 d2 h6 b4 c5 Kf4 c6 e5 c7 e4 Rh3 e3 Ra2 e2 Nf3 e1Q Bc4 Bd7 c8Q Be8 Be2 Nc6 Kb1 b2 Ne5 Nge7 Rb3 Bg7 f8R Nd4 f7 Nb5 f6 Nd5 Rg8 Ra7 f8B Rc7 f7 Rc4 Be7 Rh7 Nd7 Bd4 f8B Rf7 Ne5 Rf6 Re3 Rf7 Qa4 d1R Qd8 Rd2 Bd1 Rf2 Qd7 Qc3 Bd8 Rf6 Qf7 Qa3 Qb3 Qa5 Qh5 Rf7 Bd2 Rf5 Bc7 Rf7 Bc3 Rf3 Kc2 b1R Qa4 Rc1+ Kb2 b3 Bb6 Rc2+ Ka1 b2+ Kb1 Rcf2 Be1 Re7 Rc3 Rb4 Rc7 Rc4 Bb4 Re6 Rh7 Re7 Bc7 Re6 Bc5 Re7 Nd7 Re1 B5b6 Ree2 Ra3 Re1 Ne5 Rcc3 Ka2 b1B+ Ka1 Bd3 Ra2 Rcc2+ Kb1 Rc4+
1k5n/r1n1p2Q/p1nrBPq1/1NP2Q2/N5bn/b3N1R1/R3Qp2/3K2Nb w - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 f5 e4 fxe4 f3 e3 Bd2 Qb6 Ke2 Qa5 Ke1 Qd8 Ke2 Nc6 Be1 Nb8 Bf2 exf2 Kd3 Na6 Kd2 Nb8 b4 d5 c4 Kd7 h4 Kc7 c5 g5 f4 g4 h6 d3 h7 a6 h5 g3 b6+ Kb7 f5 g2 h6 d4 b5 Be6 Na3 Bc4 Nc2 Qe8 Ne3 Qg6 Ra2 Ra7 Rh3 Bd5 Qe2 Bg7 Kd1 Nc6 Rg3 Kb8 b7 d2 Rg4 Nf6 Rg3 Rd8 h8Q Ne8 h7 Nd6 Qf8 Nf7 h8Q Be4 Qhg8 Nh8 Qh7 Bf6 Qff7 Rd6 Qe6 Be5 f6 Bf4 Qf5 Bg5 Nh3 g1N Bg2 Nf3 Ng1 Bd5 Bh3 Nh4 Bg4 Bh1 Bh3 Kc7 b8N Kb7 b6 Ka8 Kc2 d1N Nd7 Nc3 Kc1 Nd5 Kd1 d3 Bg4 Rc7 b7+ Ka7 b8N d2 Bh3 Rb7 Nb6 Nc7 Na4 Ka8 Rf3 Ra7 Rg3 Bf4 Bg4 Be5 Bh3 Bb2 Bg4 Ba3 Bh3 Na5 Nc6 Kb7 Nd4 Kb8 Nb5 Nc6 Qfd3 Kb7 Be6 Kb8 Kc2 d1B+ Kd2 Bc2 Qd5 Bb1 Kd1 Bf5 Qdd3 Bg4 Qd5 Nd4 Qf5 Nc6+
7n/1NPk2n1/Q3N3/1R3brr/Q2pbpB1/PKpq1N1n/2R1b3/b1QN4 w - - 0 1 legal: proof: c4 c5 b4 e5 f4 exf4 g4 h5 gxh5 a6 Bb2 a5 Bc3 axb4 d4 bxc3 dxc5 Rh7 Nh3 Rh6 Ng1 Rh8 h4 b5 e4 d5 c6 g5 c5 f5 h6 d4 h5 g4 h7 b4 h6 b3 e5 f3 e6 g3 c7 f4 e7 g2 c6 b2 a3 Bg4 c8Q Bf5 c7 Na6 Rh2 Nc5 Be2 Ra5 Nh3 g1N Qc1 f2+ Kd1 f1B Bg4 Ne6 Qa6 Kd7 e8N Qg5 Nd2 b1B Nf2 Bbe4 Nf3 Qg6 Ng7 Nh3 Rb1 Be7 Rb5 Bh4 Rg2 Ne7 Rh2 Rf8 h8N Rg8 h7 Bc4 Nf7 Be2+ Ke1 Bg3 h8Q Qh7 Nd6 Ng6 Rg2 Bh2 Nd1 Bg1 Nb7 Be3 Nh5 Rg7 Qha8 Nh8 Rf2 Rg5 Ng7 Bc4 Rc2 Be2 Qf8 Qg6 Qb4 Qh7 Qa4 Rh5 Qb2 Bc1 Qb1 Bb2 Qc1 Nf8 Ne6 Ba1 Ne3 B2d3 Kd1 Bf1 Qb2 Be2+ Kc1 Rg5 Nd1 Qg6 Kb1 Rh5 Ka2 Rg5 Ned8 Ne6 Kb3 Ng7 Qc1 Rh5 Ne6 Rg5 Nh4 Rh5 Bf3 Qg3 Bg4 Qd3 Nf3 Bg6 Rb6+ Rab5+ Qb4 Rbc5 Rb5 Rcg5 Qba4 Bgf5
4r1n1/p7/3b2n1/p1Pn3b/1QN1br1k/1RPBBpq1/R4Bn1/R2QBK2 w - - 0 1 legal: proof: d4 e5 f4 c5 dxc5 b6 a4 Nh6 a5 bxa5 Ra2 Ng8 Ra4 Na6 Ra1 Nb8 g4 f5 Nd2 h6 Ndf3 exf4 Ng5 hxg5 gxf5 g4 b4 Ke7 h4 Kf6 e4 g5 c3 d5 h5 d4 h6 g3 b5 g4 h7 Kg5 f6 g2 f7 g3 e5 d3 b6 d2+ Ke2 Qc7 e6 Nc6 b7 Ne5 b8B Bd6 f8R Bb7 e7 Be4 e8Q Ng6 Qb5 Qg7 Bc7 Re8 Ra2 Kg4 Qb4 Kg5 Qda4 d1B+ Ke1 Kg4 Nf3 g1N Nd2 g2 Nc4 Ne2 Be3 g1N Bd8 Qc7 Bh4 Nf3+ Kf2 Kh5 Rf7 Qb8 Rb7 Ne1 Qd7 Ng2 Rb6 Ng1 Bd3 Nh3+ Kf1 Bg4 Rb5 f3 Be1 Rf8 Rb7 Rf4 Qda4 Kg5 Qd1 Bh5 B3f2 Nh6 Rb5 Re8 h8B Ng8 Bhd4 Kg4 Qa3 Qc7 Rb3 Qg7 Qb4 Qc7 Bd2 Qg7 Bfe3 Kh4 Rg1 Qe5 Rh1 Qg5 Be1+ Qg3 Rg1 Rf7 B3f2 Nhf4 Bde3 Nd5 Ra1 N2f4 Rg2 Be7 Bg1 Bd6 Rga2 Ng2 Bgf2 Rf4
1rbRQ3/NQ1p3r/2QKB1Q1/5n2/n2B2bP/2p2P2/2pkr3/RqrqR3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 b5 c4 bxc4 g3 h5 g4 hxg4 d4 c5 b5 e6 Na3 c3 Nc2 c4 Nb4 Bc5 dxc5 axb4 Ke2 Ke7 Ke3 Kf6 Kd4 g5 h4 g3 a4 g4 a5 e5+ Kd5 g2 a6 e4 b6 g3 c6 e3 f3 c2 a7 b3 c7 e2 b7 e1R Ra5 Re2 Ra1 Nh6 Kd6 Na6 b8R Rh7 Qd3 Nc5 Be3 Na4 Bc5 c3 Be3 b2 Bd4+ Re5 Qa6 b1B Ne2 g1Q Bh3 Qd1 Re1 g2 Qc6 g1R Qb7 Kg7 f6+ Kg6 f7 Ba2 f8Q Be6 Qe8+ Kf6 Qb6 Bg4 Qc6 Kf5 Qg8 Ba6 c8Q Qb6 Qb7 Qbb1 Rd8 Rb8 a8Q Rf1 Qe8 Re4 Qbb6 Bc8 Qab7 Re5 Nc1 Kf4 Nb3 Re2 Na5 Bh5 Be6 Bg4 Qc4 Rg1 Nc6 Rh1 Qd3 Rf1 Qdg6 Nf5+ Kc7 Rh1 Na7 Rg1 Q6c6 Rh1 Be5+ Ke3 Bd4+ Kd2 Rg1 Qe1 Rf1 Rhh2 Rg1 Qf1 Rh1 Re1 Rg1 Rc1 Rh1 Qd1 Re1 Ng7 Kd6 Nf5+ Ke5 Re2+ Kd5 Nh6 Kd6 Nf5+
B2NB2k/qP1b1r2/2p1p2b/N2Rq1NQ/bn1B1P1r/b1p1K3/2N4Q/4n3 w - - 0 1 legal: proof: c4 d5 a4 dxc4 e3 b5 axb5 f5 Bd3 g5 Bf1 f4 exf4 Qd3 Ra5 Qd6 Ra1 Qd8 f3 g4 g3 gxf3 g4 h6 g5 h5 b4 Qd7 Ra6 Qd5 Re6 Qd6 Re2 Qd8 Rg2 Qd4 Rg3 Qd8 Rg4 hxg4 Kf2 Kf7 d4 Kg7 h4 a5 g6 g3+ Ke3 f2 b6 e6 h5 c3 h6+ Kf6 d5 g2 b7 a4 h7 Kg7 b5 a3 b6 a2 d6 a1B d7 Nf6 Nh3 g1Q Bg2 Nc6 b8N Nb4 Qh5 Nd3 Ng5 Ra7 Nc6 Ne1 Na3 Bb2 Nc2 Bba3 Na5 Qe7 d8N Bd7 Bb7 c6 Ba8 Qd6 Rh2 Rc7 b7 f1B+ Rf2 Bb5 Qh2 Qg4 Rd2 Ba4 Rd5 Qd1 Bd2 Qa1 Bc1 Ne4 Qh5 Nc5 Qh2 Na6 Bd2 Kf6 g7 Nb4 g8B Bh6 Bf7 Kg7 Be8 Qa2 Ke2 Qe5+ Be3 Qc4+ Kf2 Qc5 Bd4 Qa7 Ne4 Rf8 Ke3 Rf7 h8Q+ Kg6 Qf6+ Kh7 Qfh4 Kh8 Q4h3 Rg7 Qh5 Rg4 Na1 Rh4 Nc2 Bc8 Qf2 Rf7 Qh2 Qf6 Ng5 Bd7 Qg4 Qg7 Qh5 Qe5+
BKQnq2B/1pP3B1/n2Rpp1r/4N1bq/q5QP/N6q/B4kN1/5br1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 c5 gxh5 cxd4 b4 axb4 e5 f6 exf6 Kf7 Bd2 Ke6 f7 Kd6 Bc1 Kc6 a4 e6 f4 Qb6 f5 Qb5 f6 Be7 f8B Bd6 f7 Qb6 Ra3 Qa5 Rf3 Qd8 Rf6 gxf6 Kf2 Kc5 c4 d3 Ke3 b3 h4 b2 h6 d2 a5 Qb6 h7 Qd8 a6 Be7 a7 d5 Qg4 d1Q Ne2 Qe8 Bg7 Bd7 f8Q Qa4 Na3 b1Q Nf4 Qf5 Ng2 Na6 Be2 Rc8 a8B Bd6 Rd1 Nh6 Bf3 Rg8 h8N Bb5 Ng6 Nf7 Ne5 Nd8 Bh8 Rc7 Be4 Rh7 Bb1 Rh6 Ba2 Qfh5 Kd3 d4 Ke4 d3 Rd2 Kb4 c5 Kc3+ Ke3 Qb3 c6 Qa4 Rd1 d2 c7 Qb3 Ke4 Bf1 Ke3 Rg7 Ke4 Bc5 Qg8 Be3 Qf8 Bg5 Qg8 Kb4 Kd4 Qea4 Qe8 Qh3 Qd7 Qe8 Qc8 Nb8 Bb1 Kb3+ Kc5 Kc3 Kb6 Na6 Ka7 Rg8 Ba2 Rg7 Re1 d1Q Be3 Qdf3 Rd1 Qe2 Rd6 Qef3 Bd4+ Kd2 Bc5+ Ke2 Bb4 Nc5+ Kb8 Kf2 Qc4 Qfh5 Qg4 Nd3 Rd4 Rgg6 Bf8 Nc5 Bfg7 Na6+ Ka7 Qhb3 Rd6 Nb4+ Kb8 Bd2 Qd1 Qh3 Ne3 Rg1 Ng2 Bg5 Qg4 Na6+
QN1n1rnn/1q3k1N/4qbR1/b1K5/3p1p2/pQ1P2qP/3b2Q1/1NN3RB w - - 0 1 legal: proof: c4 a5 b4 e5 f4 exf4 a4 b5 Nf3 bxa4 b5 Ra6 Ng1 Rd6 b6 c5 g4 f5 Ra3 f3 Ra2 h6 Ra1 f4 Bb2 Rd5 Bf6 Ba6 Bg5 Bb5 cxb5 Rf5 gxf5 hxg5 Kf2 d5 e4 c4 f6 a3 b7 c3 e5 g4 h3 g5 d3 c2 b6 c1B e6 g3+ Ke1 a2 e7 a4 Be2 g2 Kf2 g4 Qe1 a3 Qd1 g3+ Ke1 Nc6 b8N Qd7 b7 Nd8 Qc2 f2+ Kd1 Bd2 Bf3 Kf7 Ne2 g1N Nc1 g2 Qb2 f1Q+ Kc2 d4 Kb3 Bg7 Kc4 Qe2 Kc5 Qee6 Bc6 Nf3 Rg1 Nh4 e8N Kg6 f7 Bf6 f8Q Qc7 Qb3 Qg7 Qd6 Kf7 Qdd5 Ng6 Qe4 N8e7 Qed5 Rf8 Qg5 Ng8 Bd5 Be5 Nf6 Nh8 Nh7 Ba5 Nc6 Bf6 b8Q Bd2 Qa8 Ba5 Nb8 Bd2 Re1 g1Q Qg2 Qh1 Re5 Qg3 Rg5 Ba5 Qg1 Qhg2 Rg6 Qb2 Bh1 Qbg2 Nd2 Qb7 Rb1 a1B Qg2 B1c3 Ra1 Qbf3 Nb1 Qb7 Ne2 Nc6 Nd2 Bh4 Rg1 Bf6 Nc1 Nd8 Nb1 Bd2
1r2B1Q1/BPn1q3/pn2p3/Q2qr1N1/Rb3Bp1/N2qnr2/2P5/1NKB2k1 w - - 0 1 legal: proof: f4 b5 b4 d5 a4 g5 e4 h5 g4 d4 Ra3 Ba6 Rg3 gxf4 axb5 c5 g5 Bb7 Rg4 hxg4 d3 Bd5 exd5 c4 Bd2 cxd3 Be3 Bg7 Bc1 Bf8 Kd2 Kd7 h4 Kd6 g6 Ke5 g7 Ke4 h5 f5 b6 e6 d6 f3 b7 f2 d7 a6 h6 f4 b5 f3 h7 Qe7 d8Q Nf6 g8B Nbd7 b8B Nb6 Be2 f1R Nh3 f2 Ba7 Nfd5 Qe1 Nc7 Bf7 Rb8 Ng5+ Kf4 Kd1+ Kg3 Be8 Kg2 Bf4 d2 Rh5 Rg8 h8N Kg1 Ng6 Rh8 Ne5 Rh6 Rh3 Rh5 Nh7 Rg5 Nc4 Re5 Nca3 Qd7 Bd3 Bb4 Ng5 Qe7 Re3 Qh7 Re4 Qe7 Ke2 d1N Bc4 Nc8 b6 Ne3 b7 Nb6 Qc3 d3+ Kd2 Nd1 Kc1 Ne3+ Kb2 d2 Be2 d1Q Qcd2 Bd6 Qa5 Qd5 Ra4 Bb4 Qc8 Re1 Bd1 f1Q Kc1 Qfd3 Bd7 Re2 Qg8 Rf2 Be8 Rf3
K2QRqb1/b1R2n1n/3Q3Q/1p2NPR1/6Bb/pP2np2/n1r1k3/Qn2N3 w - - 0 1 legal: proof: a4 f5 h4 g5 Rh3 g4 Rh1 Nc6 Nf3 Nd4 Ng1 Ne6 g3 Ng5 hxg5 f4 Bg2 fxg3 Bh3 Kf7 Bf1 Ke8 a5 b5 Rh5 c5 Rh3 Rb8 Rh1 Rb6 axb6 a5 d4 cxd4 f4 e6 f5 e5 Bf4 exf4 Kd2 Kf7 Kd3 d5 c4 h5 e4 f3 c5 h4 b3 g2 b7 h3 b8R h2 g6+ Kf6 c6 Ke5 g7 Kf4 e5 g3 c7 a4 e6 a3 e7 Nf6 e8Q Be6 g8Q Nh7 c8Q Be7 Qe2 Bh4 Qg7 Bg8 Qe8e6 Qf8 Kd2 d3 Kc3 d2 Kd4 d1N Qa2 Nc3 Nd2 Nb1 Qed7 Qd8 Kc5 Ke3 Kc6 d4 Kb7 d3 Qdc6 Qf8 Nh3 g1N Qd6 g2 Qcd8 Ne2 Nf2 g1B Bh3 Nc1 Ka8 Ke2 Nc4+ d2 Nd3 Ba7 Rg1 h1N Ne1 Ng3 Ne5 Ne4 Bg4 Neg5 Qgh6 Nf7 Qb2 Na2 Qbd4 Nbc3 Rc1 Nb1 Qa1 d1N Rc7 Ne3 Q8e7 Nf6 Re8 Rh7 Rg3 Rg7 Qed8 Nh7 Bh3 Rg6 Rg5 Rf6 Bg4 Re6 Qc5 Rc6 Qcd6 Rc2
1BB1n1b1/Q2p4/1bRB1b2/Q2Np1kr/1QN3P1/1KP4p/3br1qB/1b3r2 w - - 0 1 legal: proof: e4 c5 h4 g5 a4 f5 f4 Nc6 g4 Ne5 b4 Nf7 d4 fxe4 f5 b5 axb5 cxd4 Ra3 Rb8 Rf3 Ra8 Rf4 gxf4 Na3 Nf6 Nb1 Ng5 hxg5 Ng8 Kd2 Kf7 b6 h5 b7 a5 b8B f3 b5 h4 g6+ Kf6 g7 e3+ Kd3 h3 Kc4 e2 b6 e1B b7 d3 Bb2+ Kg5 f6 f2 f7 a4 B8e5 d2 b8B a3 Bh2 a2 Na3 a1B Kb3 Ba6 Bb2e5 Bd3 Nc4 Nf6 Ne2 Ra2 Nc3 Ne8 Nd5 Rh5 Bed6 Bf6 Qa1 d1B g8Q+ Bg6 Qc3 e5 Qa5 Bd2 Bg2 Bf3 Rc1 f1R Bh1 Bh6 f8Q Qc7 Qa7 Qc6 Qe7 Bg2 Qd8 Be4 Qf8 Bf7 Qda5 Bg8 Nc3 Re1 Bdc7 Be3 Qfb4 Kh4 Bd6 Bd3 Bf3 Qa8 Bb7 Rf1 Bc8 Qg2 Nd5 Bb6 Nb2 Bhe3 Rd1 Bf5 Rd4 Bh6 c3 Bb1 Rc4 Bhe3 Rc7 Kg5 Nc4 Re2 Rc6 Bd2
3Q1Q2/1Pr2RN1/b3Q2B/3b1pKb/n1qQ2nP/qp1bpBk1/2R5/3Rb3 w - - 0 1 illegal: No proof kernel
1kn1qR2/qn2n3/1N3K1N/1P1Q1Q1P/pb1Q3q/1p2Q1n1/p1N5/1BB1rb2 w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 a4 hxg4 Ra2 bxa4 b5 f5 exf5 Qa5 Bb2 Qc7 Bc1 Qd8 c4 a5 d4 Qc7 d5 Ra7 d6 Qb6 Rb2 Rc7 Rb4 cxb4 c5 Na6 dxc7 Qb8 Ke2 Bb7 Kd2 Qd8 Ke1 Bc8 Ke2 d5 Ke3 Kd7 Kf4 g5+ Ke5 d4 f4 g3 h4 d3 f6 d2 f7 g4 h5 a3 f5 a2 f6 a4 Bc4 g2 Bd3 b3 Be4 g3 Qf3 d1N Rh3 Nb2 Rh2 Qe8 Qe3 Nc4+ Kf5 e5 Nf3 g1N Na3 g2 Nc2 Nb6 Nh4 Ne2 c6+ Kd6+ Kg6 Bh3 c8Q g1Q+ Qg4 Kc7 Nf5 Kb8 Rf2 Ng3 Nh6 Nc8 Qe6 Be7 Qd5 Bb4 Rf4 Nc5 c7+ Ka7 Kg7 Bf1 f8Q Nge7 f7 Qf2 Bh7 e4 Kf6 Qg1 Qed4 e3 Qg8 e2 f8Q e1Q Qge6 Rg8 Qee3 Rg4 Rf3 Re4 Qff7 Qgf2 Qf5 Ka8 Q7d5+ Nb7 Rf4 Na7 c8N Kb8 Nb6 Nac8 Rg4 Qg1 Rg8 Qef2 Rf8 Qgh2 Qef3 Re1 Qfe3 Qh4+ Qg5 Qe4 Qc3 Re2 Ne1 Bc5 Qff4+ Ka7 Nc4 Qh1 Bb1 Re4 Nc2 Re1 Qff5 Bb4 Qa1 Qc5 Qad4 Kb8 Qge3 Qa7 Nb6 Qh4+
k1q2Bq1/1R6/P2Qnb1R/1n1Rr1NP/3R2pn/KN4rr/p1p3r1/1Q2Q3 w - - 0 1 illegal: No proof kernel
qk1q2Br/2b4p/1B1b2P1/1bQ3nn/N1QBR1p1/1p1K3B/1PR2Qnb/8 w - - 0 1 legal: proof: d4 e5 c4 d5 cxd5 f5 g4 fxg4 d6 Na6 d5 Nb4 Nd2 Nxa2 h4 g5 Rh2 a5 Bh3 b5 Bf1 g3 Ndf3 g4 Nd4 exd4 Rh1 Nf6 Bg5 Rg8 Bf4 Rg5 hxg5 Ng8 Bc1 Ba6 Kd2 Qf6 Rh4 Ne7 Bg2 Kf7 Rh1 Bg7 Rh3 Rh8 Nf3 Bf8 Ke1 Ng8 Bf1 Qd8 Rh1 Bc8 Ng1 Ke8 Kd2 Kd7 f4 c5 e4 a4 g6 g2 e5 c4 f5 a3 e6+ Ke8 f6 c3+ Kd3 c2 e7 Kd7 f7 b4 Qd2 b3 Rh2 Nc3 Ne2 g1B Bh3 Bb7 e8B+ Kc8 d7+ Kb8 d6 Ne4 Nc3 a2 Qf2 Bc6 Be3 c1B Na4 Ngf6 Rb1 Be7 f8Q a1Q Bf7 Ng5 Bg8 Nh5 Q8f4 Bd2 Re1 Ba5 Qf5 Bb6 Qc5 Bc7 Rg2 Bh2 Qc4 Qe8 d8B Bb5 d7 Bed6 Bf6 Qc8 d8Q Qa2 Qe8 Qd8 Qc6 Qa3 Qc5 Qa1 Kd2 d3 Bfd4 Qa2 Kc3 d2 Kd3 d1N Re2 Qa1 Rc2 Qa2 Rg3 Qa3 Rf3 Qa1 Rf4 Qa2 Re4 Qa3 Bd2 Ne3 Ba5 Ng2 Bb6 Qa2 Nc3 Qa5 Na4 Qa8
RQ3r1B/1nK1Np1R/QR2qpR1/2npr2Q/q1r5/k1Pb4/3PN2n/2r5 w - - 0 1 legal: proof: b4 c5 f4 b5 f5 g6 f6 exf6 a4 cxb4 axb5 Qb6 Ra6 Qc7 Ra1 Qd8 g4 Qc7 h4 Qb6 g5 Nc6 Bh3 Qd8 Bf5 gxf5 g6 Bh6 Nf3 Be3 Ng1 Bg5 hxg5 Nb8 Kf2 Ke7 Kf3 Kd6 Kf4 Kc5 e4 a5 b6 h5 e5 d5 g7 a4 g6 b3 b7 Kb4 e6 a3 e7 h4 e8Q b2 Qee2 a2 Qd3 h3 Ne2 h2 Qa6 Qd7 Ng3 Rh5 Nc3 b1R Nce2 Nh6 g8R Qe6 g7 Nd7 b8Q+ Bb7 Rd8 Nc5 g8R Rb2 Rb1 a1Q Rc8 Qa4 c3+ Ka3+ Kf3 f4 Nf5 Rg5 Ne7 Nf5 Rg6 Nd6 Kf2 f3 Rf8 Nce4+ Ke3 f2 Kd3 f1N Rh8 Nc4 Kd4 Re5 Rh7 Bc6 Rhg1 h1R Rg8 Bd7 R1g6 Bb5 Re8 Neg3 Kc5 Nd6 Kb6 Nb7+ Kc7 Ne4 Rc8 Nec5 Rd8 Ka2 Re8 Rb4 Ba3 Bd3 Rc8 Rbh4 Rb6 Nh2 Rd8 Nd7 Bc5 Rf1 Be3 Rd4 Bh6 Ndc5 Bg7 Ka3 Bh8 Rc4 Rdg8 Rff5 Qh1 Rf1 Qf3 Ra1 Qh5 Rc1 Qba7 Rd8 Re8 Rd6 Ra8 Rd8 Qb8 Rf8
n4r2/1n3pkb/1NpQQ2q/7Q/2PrpRnr/PB4B1/3N2qn/Q1K3N1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 d6 d5 e6 dxe6 d5 f4 Ra7 a3 Ra5 e7 Kd7 e6+ Kc6 Ba6 Bg7 Bf1 Be5 fxe5 Rc5 Rh3 Ra5 Re3 Ra8 Re4 dxe4 Qe2 Ra7 Kf2 Nf6 Nf3 Nfd7 Bd2 Ra6 Nc3 Nb6 Rc1 Qe8 Nb1 Nc4 Rd1 Bd7 Bc1 Ra8 Qd3 Qd8 Be2 Bc8 Rh1 Nd6 Ng1 Nf5 Ke1 Nh6 Bf1 Ng8 Qd7+ Kc5 Qd1 Kc6 e8Q+ Nd7 Kd2 Kd5 g4 b5 g5 h5 g6 b3 g7 h3 e7 Ke6 c4 c6 Nf3 h4 Be2 b4 Ng1 b2 Bf1 h2 Qe2 b3 Qh5 h3 Nf3 Nh6 g8Q Ng4 Bg2 Nb6+ Kc3 Qd6 Re1 h1Q Nbd2 b1R Ng1 b2 Kc2 h2 Bf3 Qg2 Rf1 h1N Qgf8 Ng3 Bd1 Nf5 Rf4 Rb8 Qg7 Na8 Qd8 Bd7 Qc7 Rbf8 e8N Ra1 Nf6 b1N Nd5 Bc8 Qhg5 Rh4 Nb6 Bd7 Q5h6+ Ke7 Qhh7 Qh6 e6 Nd6 Qgh8 Ke8 e7 Nb7 Qd6 Bf5 Kb2 Bg6 Bb3 Bf5 Q7g7 Bh7 Kc2 Ra2+ Bb2 Ra1 Be5 Ra2+ Kc1 Rb2 Nf1 Rd2 Qgf6 Rd4 Nd2 Nc3 Qg6 Nd5 Qh5 Nh2 Rg4 Qh1 Bg3 Nf6 Rf4 Nfg4 Qg7 Qg2 Qge5 Rd5 Qa1 Rd4 Nd5 Rg8 Qb8+ Kd7 Nb6+ Ke6 Qd8 Rf8 Qc7 Bf5 e8Q+ Kf6 Qd6+ Kg7 Qee6 Bh7
N3q2q/r1RPp1p1/3QqP2/n1Kq1N2/5pQ1/4Q1B1/kn1Q1RN1/r1b1n3 w - - 0 1 illegal: No proof kernel forced: wxDB
1Q1N1bQ1/N2p1B2/qq2Bk2/2n1r1Rq/1p5B/N2b4/1KPn1Ppq/n6B w - - 0 1 legal: proof: b4 b5 g4 e5 a4 c5 h4 a5 d3 axb4 Bg5 f5 Bc1 g5 Ra3 c4 gxf5 cxd3 Rc3 g4 Rc4 Ra6 Rf4 Rg6 Rd4 Rg5 hxg5 exd4 Qd2 b3 Kd1 Ke7 e4 h5 e5 b4 g6 h4 a5 g3 e6 b2 a6 h3 g7 h2 a7 Na6 a8B Nh6 g8Q Qb6 Bh3 Bg7 Bb7 Nc5 Qf4 d2 Na3 b1N Nf3 Rh7 Rg1 h1Q Ne5 Rh8 Bf3 Ba6 Bhg4 Qh2 Bh1 Bb5 Nf7 Bc4 Qfb8 Rh7 Nd6 Ba6 Re1 g2 Re5 Bb5 Bb2 Ba6 Ndb5 Rh8 Ke2 d3+ Ke3 Rh7 Na7 Rh8 Bc3 d1Q Kd4 Qe2 Bd2 Bb7 Kc4 Be4 Bh3 Rh7 Bf4 Qh5 Bg3 d2 Rd5 Nb7 Kb3 Nc5+ Ka2 Qe2 Re5 d1Q Kb2 Nd2 Bg4 Qea6 Bh4+ Bf6 Bh3 Bd3 Bg4 Bg5 Bh3 Qh5 Bg4 Kf6 e7 Rg7 e8B Re7 Rd5 Re1 Bg6 Ke7 Be8 Nf7 Bh3 Ndb3 Bg4 Na1 Bh3 Qg4 f6+ Ke6 Rf5 Qh5 Bg4 Bh6 Rg5+ Bf5 Bh3 Re5 Bg4 Kd5 Bh3 Bd3 Bg4 Ke4 Be6 Nd6 f7 Bg7 f8N Kf4 B8f7 Nde4 Bh3 Nd2 Ne6+ Ke4 Nd8 Bf8 Rg4+ Kf5 Rg5+ Kf6 Bf5 Qh6 B5e6 Qh5
rK6/1QP1kr1b/4PNq1/B2b1R2/3b3n/pNq2N1Q/1R1pp2r/3bQN2 w - - 0 1 legal: proof: e4 b5 h4 d5 d4 dxe4 a4 g5 axb5 gxh4 Ra6 c6 Ra3 Bf5 Ra1 Bc8 f4 e5 d5 e3 d6 e4 Bc4 Nd7 Bd5 Ne5 fxe5 cxd5 Ke2 a5 g4 h5 c4 f5 b4 a4 c5 h3 b6 f4 b7 h2 b8N h4 g5 h3 b5 a3 b6 d4 b7 Bd7 g6 Rh4 c6 Be6 d7+ Ke7 g7 Qe8 d8Q+ Kf7 c7 Ne7 g8N Ng6 Qe1 Bg7 Na6 Bd5 b8Q Qc6 Nc5 f3+ Kf1 e2+ Kf2 d3 Ke3 f2 Kd4 f1R Qdc8 Bf6 Nf3 e3+ Qg4 Rh7 Ra2 Nh4 Nbd2 Rh5 Rg1 h1B Qb7 h2 Ncb3 Bg2 Bb2 h1B Qh3 Bh8 Bc3 Qg6 Nf6 Ke7 Kc5 Bg8 Kc6 Bh7 Qa1 e1Q Ba5 Qc1+ Kb6 Qc3 e6 Rf2 Nf1 d2 Qe1 e2 Ng5 Bd5 Rb2 Bhe4 Nf3 Bc2 Rg5 Bd1 Rf5 Rh6 Qc6 Rh5 Kb7 Bg7 Ng4 Bd4 Nf6 Ra7+ Kb8 Rh2 Rf4 Rf5 Qb7 Ra6 Nd7 Rf6 Rf5 Rf7 Nf6 Ra8+
2NNbk2/qp4RK/5B2/bQN1PqbQ/r2P4/5p1B/n1q1N1p1/3B2bn w - - 0 1 illegal: No possible last move, all moves rejected
5q2/p2Q2B1/3q3K/QnkqnBR1/1bp2NBn/r1PpP3/r4N2/Q1n1B3 w - - 0 1 legal: proof: d4 c5 a4 f5 g4 fxg4 d5 b5 axb5 d6 b6 Na6 Qd2 e6 Qd3 exd5 Qd1 d4 b4 h5 b7 h4 Ra3 Rb8 Rg3 hxg3 bxc8B Ra8 Bb7 Rc8 Ba8 Rc6 Kd2 Kd7 h4 g5 f4 g2 h5 g3 f5 g4 h6 c4 h7 d5 f6 Kd6 f7 d3 Ke3 d2 Kf4 d4 b5 Nc7 b6 Qc8 Kg5 Kc5 b7 Ra6 b8Q Ra3 e3 Ne7 Be2 Nf5 Be4 Nh4 Bf5 Nb5 Nh3 g1Q Nc3 g2 Nf2 g3 Nd5 Qh2 Nf4 g1N Beg4 Ne2 Rg1 g2 c3 Bd6 Qb7 Qf8 Qd7 d3 Qf1 d1Q Bd2 Nc1 Be1 Qf3 Kh5 Rg8 h8Q Qd5 Qe5 Rg7 Kh6 Qg3 Rh1 g1N Rh2 Ngf3 Rg2 Bc7 Qh1 Ba5 Rg1 Bb4 Rg2 Qe7 f8B Rg5 Bg7 Qf8 Qf6 Ne5 Qa6 Qh3 Qa5 Qh2 Bf3 Rg3 Qf1 Rh3 Rg5 Rg3 B3g4 Rg2 Qe2 Qg3 Qa2 Qh2 Qa1 Qg3 N2h3 Rga2 Nf2 Qdd6+ Be6 Qg2 Bf5 Qgd5 Bg4 Qc7 Bef5 Qcd6+
Q1qn1B2/1N1b1r2/1k1r2p1/5N1K/3PpN2/Nr1R3B/1P1pr3/1r1rB1Qn w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 d5 g5 d3 e3 d2+ Ke2 h6 Na3 hxg5 Nb1 g4 Nc3 e5 Nb1 e4 Ra6 d4 Re6+ fxe6 Bg2 d3+ Kf1 Bb7 Bh3 Bc5 Kg2 Bd4 exd4 Ba6 Kg3 Qd5 Bf1 Bc8 Kg2 Qd8 Kg3 Kd7 f4 Kc7 h4 a5 c4 e3 f5 e2 f6 e1R c5 a4 f7 e5 f8B e4 b6+ Kb7 h5 a3 h6 a2 h7 a1R Ne2 Nc6 Na3 Ra6 Rh3 Rb1 Nf4 Nge7 Kh4 g3 Kh5 g2 Re3 g1R Bh3 Rg8 h8N Rg3 Nhg6 Nf5 Nh4 Re2 Qg1 d1R Bd2 Bd7 Be1 d2 Rf3 Qc8 Rd3 Nd8 c6+ Ka8 b7+ Ka7 b8N Kb6 c7 Rge3 Nc6 Ng3+ Kg6 Nh1 Na5 Ra7 Nb7 Rh8 Nf5 Rh6+ Kg5 Rd6 Kh4 Qa8 c8Q Rg3 Qc2 Qc8 Kh5 Rge3 Qa4 Rf3 Na5 Rc7 Nb7 Rc3 Ng2 Rb3 Qa8 Rf1 Nfe3 Rff6 Nf5 Rf7 Nf4 g6+
Nn1rrbQ1/1Q2P2n/2Bp1n1R/2P2p2/K1n3n1/1N1bb3/k5p1/N3BQQ1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 e5 b4 f5 f4 b5 g5 Qf6 gxf6 exf4 axb5 h5 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kd2 Kf7 h4 Ke6 e4 g5 c4 a5 Kc2 g3 Kb3 d3 h5 f3 f7 d2 b6 f2 h6 d6 e5 g2 h7 g4 b5 g3 c5 Kd5 e6 Nc6 e7 Na7 b7 Nc6 b8Q Ba6 b6 Bd3 b7 Nf6 Ne2 g1N Rh6 g2 Na3 Nf3 Ka4 Ng5 Nc2 Kc4 Ned4 Kc3 Qf3 d1N Nb3 Ne3 Bd2+ Kb2 Nca1 Ka2 Be1 Nc4 Qa7 Rg8 h8Q Rd8 b8N Ngh7 Na6 Nb8 Qab7 Re8 Be2 f1N Nc7 Nfe3 Na8 Neg4 Qf1 Rd8 Bf3 Re8 Kb5 a4 Bc6 a3 Qg7 Kb1 Ka4 a2 Qg5 Rd8 Qe3 Rh8 Nc2 a1B Qeg1 Bd4 Nca1 Rg8 Bc3+ Ka2 Be1 Bg7 f8Q Be3 Qf7 Rge8 Qg8 Bf8
R4b2/1br4Q/3n1N2/2k1KpP1/R1Pbn3/p1p1Q1r1/B6n/B1QQBn1r w - - 0 1 illegal: No possible last move
3nb3/1R1Q4/7n/1nPBqR2/b1N1QNKp/rpkP4/1bN2bp1/1R1n2N1 w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 g5 hxg5 d5 b5 d3 b6 d4 c3 axb6 Bf4 b5 Bc1 b4 Qc2 d2+ Kd1 Ra3 Qb3 Ra8 Kc2 d1B+ Kd2 d3 Ke1 Qd7 Qc2 Qd6 Qb3 Qd8 g4 b5 g6 f6 c4 Bh6 g5 Bf8 g7 Kf7 g6+ Ke8 Bg5 fxg5 Bg2 d2+ Kf1 Ra6 Bh3 Rd6 Kg2 Rd3 exd3 Be2 Kg3 Qa5 Bf1 Bd1 Kg2 Qd8 Kg3 Kd7 f4 Ke6 a4 h5 c5+ Qd5 a5 h4+ Kh3 g4+ Kh2 g3+ Kh3 Bd7 f5+ Ke5 a6 Kd4 a7 e5 a8N e4 Ra7 e3 Rb7 e2 Bg2 e1B Qa4 Nc6 Na3 Nd8 Nb6 Kc3 Nc2 b3 Qe4 b2 Nc4 Nh6 g8Q b1N g7 b4 Qh7 Bf2 g8R Qe5 Rg5 Be8 f6 Bg7 f7 Na3 f8N Nb5 Rf5 Bf6 Bf3 g2 Qd7 Rh7 Ng6 Rf7 Nd4 Ba4 Nf4 d1N Nc2 b3 Qe3 Re7 Bd5 Re6 Qe4 Ra6 Nf3 Ne3 Rb1 Nd1 Ng1 Bg5 Ne6 Bc1 Nf4 Bb2 Ne1 Nd6 Na3 Bc6 Nc4 Ra3 Nc2 Bb5 Rf7 Ba4 Rf5 Nhf7 Kg4 Nb5 Kh5 Nh6+ Kg5 Ng8 Kg4 Nh6+
1K1Q1r2/2p4B/nbPNB1p1/r3bP2/R3b3/1p2RR2/r5k1/QrqbQ2R w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 e4 f6 e6 Na6 e5 Ke7 Bb2 Nb8 Bd4 Ke8 e7 Kf7 Bc3 Ke6 Bd4 Kd5 e6 Kd6 Be5+ Kc6 f4 fxe5 g4 h6 g5 Na6 f5 Nc5 Nd2 Ne4 Ndf3 Nef6 gxf6 Ra6 Nh3 Ra8 Nhg5 hxg5 Ng1 g4 Ke2 d5 Kd3 b5 e8B+ Bd7 h4 b3 c4 e4+ Kd4 g3 a4 b4 c5 b2 e7 b1R f7 b3 a5 g2 h5 e3 h6 e2 h7 e1B a6 Nf6 a7 Ne4 Nf3 g1R Ng5 Rg2 Bc4 Bg3 Ra4 Ra2 Qe1 Rg8 h8R g6 R8h3 Bf2+ Ke5 d4 Rf3 d3 Be6 Bh6 f8R d2 B8f7 d1B Re8 Rf8 Bg8 Bg1 Bh7 Bg7+ Kf4 Bc8 Nf7 Bb7 Nd6 B1d4 Beg8 Bgf6 Be6 Bde5+ Ke3 Bd4+ Kd3 Bfe5 Kc4 Be3 Kb4 Bf2 Ka5 Bfd4 Bc8 Kd5 Kb5 Qd7+ Ka5 Bc6 Ka6 Qe6 Bd7 Qf6 Bc8 Qg5 Bd7 Qc1 Bc8 Bb5+ Kb7 Bd3 c6 Bb6 Bd7 Rd8 Bc8 Nc5+ Kb8 Be4 a8Q Na6+ Kb7 Nb4 Be6+ Kd4 Qa6 Ra8 Qaf1 Ra5 Kb8 Bd3 Rd8 Be4 e8Q Bg3 Qg1+ Ke5 Re3 Kf4 Rd7 Kg4 Qd8 Kf4 Rf3+ Kg4 Qd4 Be5 Re3 Kf4 Qa1 Kg4 Re7 Kf4 Rf3+ Kg4 Rf2 Kg3 Rf3+ Kg2 Nb7 Bg7 Bc8 Bd5 Ree3 Be4 Be6 Be5 Nd6 Na6+
2k1K1RN/1b1R1PrQ/rbpP1BNr/7p/n5Q1/7b/1R1p2nQ/Q2rb3 w - - 0 1 legal: proof: d4 e5 c4 exd4 h4 b5 a4 g5 axb5 gxh4 Ra4 d3 Ra3 Nh6 Ra1 Ng8 e4 d5 e5 f5 Be2 d4 Bf3 Qd6 Be4 Qd5 cxd5 fxe4 Kd2 Kd7 g4 h5 f4 a5 b4 a4 b6 c6 b7 a3 f5 h3 f6 a2 g5 h2 e6+ Kc7 b5 Ba3 e7 Na6 e8R Bf5 b8Q+ Kd7 b6 Bb4+ Nc3 Be6 f7 Rh7 g6 Bf8 b7 Ba3 g7 Nc7 Nh3 Ra5 Rb1 a1R Qg4 Nf6 g8Q Ra6 Qa8 Bc5 b8Q Nb5 Bb2 Rh6 Nf4 Bb6 Rhd1 h1B Qh7 Bg2 Ng6 Bh3 Ne2 Nc3 Rg8 Na4 Qh2 Ra2 Nef4 e3+ Ke1 d2+ Ke2 d3+ Kf3 e2 Nh8 e1B Nfg6 Ra3 Kf4 Kc7 Ke5 Bc8 Ba1 Bb7 Rb2 Rb3 Qa7 Rb4 Ke6+ Rf4 Rdb1 d1R Ke7 d2 Kf8 Kd8 d6 Rf5 Qa8+ Kd7 Qa7 Nd5 Qa8 Nf4 Qa7 Kc8 Ke8 Bg1 Qd4 Ng2 Qdg7 Ba8 Rb7 Bb6 Rd7 Rf4 Bf6 Bb7 Rb2 Rf3 Bh4 Rf2 Qge5 Rf5 Bf6 Rg5 Qa5 Nc3 Qa1 Na4 Nf8 Rg7 Nfg6 Bg3 Qf5 Bgf2 Qg4 Be1
6qn/2nNRN2/1Kbp1n1p/3QR2P/1Q6/Q1NpqN1B/1nkPnq2/3r4 w - - 1 2 legal: proof: c4 b5 f4 e5 e4 f5 b4 a6 Bb2 bxc4 b5 axb5 Bd4 exd4 e5 c3 e6 Bd6 g3 Be5 fxe5 f4 Ke2 f3+ Ke1 Ne7 Nh3 Rf8 Ng1 Rf4 gxf4 Ng8 Be2 Kf8 Bd3 Ke8 Bf1 Ba6 Bg2 Qf6 Bf1 Nh6 Ne2 Ke7 Rg1 Nc6 Rh1 Rh8 Nc1 Bc8 Be2 Ke8 Bf1 Ng8 Ne2 Qd8 Ng1 Nb8 Kf2 Ke7 h4 g5 a4 c5 f5 g4 a5 c2 a6 c1N a7 c4 a8N d3 Ke3 f2 Kd4 b4 Kc5 c3 Qb3 g3 Qc4 g2 Ra2 c2 Qa6 b3 Qa3 d6+ Kb5 b2 Ra1 Bb7 Nc3 Na6 Nb6 Nc7+ Ka5 b1Q Nd7 Bc6 Nf3 g1Q Bg2 f1N Rh2 Ne3 f6+ Ke8 Ne2 Nd1 Nc3 Nb2 Rh1 Qf1 Kb6 Qe1 f7+ Ke7 f8N Nf6 Ng6+ Ke8 e7 Kf7 Qa7 Ke6 Ra5 Qg8 Rb5 Qe2 Re1 Qf2+ Re3 Qa2 Qa3 Ne2 Bf1 Nf4 e8Q+ Kf5 Qe7 c1N Qf7 Nce2 e6+ Qd5 Nge5 Qd4+ Rc5 Ng6 e7 Qf4 Qfb3 Qd4 Qbb4 Ke6 Nf7+ Qe4 Rh5 Qe5 Na4 Kd5 e8Q Qg5 Qa5+ Kc4 Qee5 Qf4 Nc3 Qh6 Qa1 Kb3 Qb4+ Kc2 Qaa3 Qg5 Qec5 Qh6 Re7 Qhe3 Rhe5 Qa8 Qa1 h6 h5 Rg8 Qaa5 Nh8 Qaa3 Rg1 Bh3 Rd1 Qcd4 Qg8 Qdc5 Nd4 Qd5 Ne2+
1n2N1B1/2Q1q1KN/2B3Rp/3B1k1q/pB2qPqP/1r1n3p/1Q3b2/3qN1n1 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 f4 b5 h4 bxa4 Ra2 e5 Ra3 g4 Rc3 e4 Rch3 gxh3 Na3 f5 Kd2 a5 Bb2 Ba6 Qe1 Bb5 Bc3 Ra6 Qa1 Re6 Bb2 Re5 fxe5 f4 Qd1 f3 Nb1 f2 Ba3 Bc4 Bc1 Be6 Nc3 Bg4 Nb1 Bf3 exf3 Qc7 Na3 Qb6 Nb1 Qd8 c4 Kf7 g4 Ke6 c5 d5 b5 a3 c6 e3+ Kd3 e2 f4 e1Q b6 a2 g5 a1Q c7 a4 c8B+ Nd7 b7 h6 b8Q Qb2 g6 Bd6 g7 Bc5 Bd2 Ne7 g8B+ Kf5 e6 Ng6 Nf3 Qe7 Qc7 Nb8 Bg2 f1N Na3 Nh2 Ng5 Nf3 Qb3 Ng1 Nh7 Qd1 Bf3 Qbb1+ Nc2 Bb6 Bg2 Qg4 Qb2 Qh5 Bb4 Ne5+ Kd2 d3 Kc3 d2 Bd7 d1Q Ne1 Bf2 Bc6 Qe4 Bf3 Qef7 e7 Nd3 e8N Qfe7 Rh2 Qde2 Rg2 d4+ Kc4 Qd1 Rg6 Qde2 Bh1 Qeg4 Bcd5 Nc5 Bc6 d3+ Kc3 d2 Bf3 Q4e6 Bfd5 Nd3 Kc4 Bg3 Kd4 d1Q Ba2 Qee2 Kd5 Q7e4+ Kd6 Bf2 Bad5 Ne5 Ke7 Nd3+ Kf7 Q2e3 Kg7 Qc5 Bgf7 Qce7 Nef6 Rd8 Ne8 Rd6 Bb5 Rb6 Bbc6 Qd8 Bg8 Rb7 Ba3 Rb3 Bb4 Qde7+
R1n3qB/3p2N1/R2Pq3/3k4/nn3bBn/3Pn3/1Q1r2pp/RRKn1BQ1 w - - 0 1 legal: proof: g4 b5 b4 a5 g5 axb4 g6 e5 Nf3 e4 Ng1 e3 d3 Ra3 d4 Rd3 cxd3 fxg6 Nd2 g5 Nb1 g4 h3 g5 Bg2 g3 Nf3 g4 Nbd2 Bb7 Bf1 g2 Ng1 g3 Qb3 exd2+ Kd1 Bf3 Kc2 Bg4 hxg4 Qh4 Kb1 Ke7 Qd1 Ke8 Kc2 Qd8 f4 Kf7 a4 Ke6 e4 c5 a5 h5 e5 c4 a6 c3 a7 h4 a8B h3 g5 h2 g6 b3+ Kb1 b4 g7 b2 Bf3 Ne7 g8R Na6 Qe1 Bh6 Nh3 g1N B1e2 g2 Rg5 Rf8 Bg4+ Rf5 Qd1 Nc8 Rg6+ Qf6 Qe1 Nf3 d5+ Kf7 Rf1 Nh4 e6+ Ke7 Ng5 Kd6 Kc2 b1N e7 b3+ Kd1 b2 e8Q Nc5 Ne6 Na3 Qh8 b1Q Qf2 Qb4 Qg1 Qc4 Bb2 Nc2 Re1 Qf7 Bf1 Qg8 Qg7 Rf8 f5 Na4 f6 Re8 Qh8 Bf4 Qg7 Nd4 Rh6 Ndf5 Kc2 Qe4 Reb1 d1N Qh8 Na7 f7 Rb8 f8R Nfe3+ Kc1 c2 Kd2 c1N Qd4 Rb6 Ra8 Na2 Qc3 Rb5 Qc2 Qf5 Bh8 Rb2 Ng7+ Qf6 Rg6 Nb4 Kc1 Nc8 Qb3 Rd2 Qb2 Kc5 Rh6 Qf5 Rha6 Qfe6 d6 Kd5
2Br1q2/QPRrqnNQ/4Bq2/6p1/2K1Q2p/B1pn2Pr/1N3B2/2n2k1r w - - 0 1 legal: proof: e4 d5 b4 b5 c4 dxc4 a4 bxa4 d4 f5 h4 g6 h5 Nh6 d5 Bb7 d6 Bd5 exd5 Nf7 h6 Bg7 hxg7 Nh6 Ra3 Ng8 Re3 Nh6 Re2 Ng8 Re4 fxe4 Kd2 Kd7 Kc3 c5 f4 a5 f5 h5 f6 e5 g3 a3 b5 a4 b6 e3 f7 e2 f8Q e1Q+ Bd2 g5 b7 e4 Qc2 a2 Qf6 a1Q+ Qb2 a3 Nf3 a2 Qh6 e3 Rh4 e2 Na3 Qf8 Qh7 Nh6 g8B+ Nf7 Nd4 Na6 Nf5 Nb4 Ng7 Nd3 Rg4 Rd8 Bh3 Qab1 Qc1 a1R Qc2 Qb6 Qa4+ Qc6 Qa7 Rd1 Qe4 Qf2 Bc1 e1R Be3 Qe2 Bf2 Rh1 Qh7 Qe6 Re4 Qb6 Bg4 Rh3 Re2 h4 Rc2 Rdh1 Qe4 Rh7 Bf5 Rc8 Bg4 Qbd8 Rc1 Qde7 Bf5 Kd8 d7 Kc7 d8B+ Kd6 Ba5 Qh6 Bb4 Rd8 Bc8 Qhe6 Qg2 Ke5 d6 Q6f6 d7 Nh8 Be6 Nf7 Kc2 c3 Kb3 c2 Kc4 Qee8 Qf3 Qee7 Qh5 Ke4 Qh6 Re8 d8Q Kf3 Qd4 Kg2 Qh5 Rd8 Qe5 Rh8 Qh7 Rd7 Qe3 Ne1 Qee4+ Kf1 Nb1 Rg8 Nc3 Rh8 Nd1 Nd3 Ba3 Rg8 Rb1 c1N Rb6 Rh8 Rc6 Rg8 Nb2 Rh8 Kb5 c4 Rc7 c3 Kc4 Qd6 Qg8 Q8e7 Qgh7 Rhd8 Qb6 Qf8 Qa7 Qde7
bQr2RQ1/2rN1p1K/B7/1Nn1p1P1/1Bp1Q3/2nN1Pq1/2np1Qb1/1r1k4 w - - 0 1 legal: proof: e4 b5 h4 d5 b4 g5 a4 gxh4 axb5 Bh6 d4 Bg5 Ra3 Bh6 Rd3 Be3 c3 dxe4 d5 Bd4 cxd4 exd3 Kd2 Kd7 Ke3 Kd6 Kf4 h5 Kg5 c5 g4 a5 b6 d2 b7 a4 b5 a3 f3 a2 b6 a1N Nc3 h3 Ba3 h4 Qa4 h2 Bb4 h3 Ba6 Qc7 Nge2 Nc2 Nc1 Nd7 b8N Ngf6 b7 Ra7 Nd3 e6 Rb1 h1R Ra1 Rd8 Kh6 h2 g5 Ne4 Kh7 Rb1 Ra2 h1B Nb5+ Ke7 Ra3 Bg2 Rb3 Nc3 d6+ Kf8 d5 c4 Qa1 Nc5 d7 Re8 d8Q Qg3 d6 e5 Qb6 Rd8 d7 Ke7 Qc6 Rg8 Qe4 Ke6 d8Q Bd7 Qa4 Bc6 Qdd4 Rc8 Nd7 Bd5 b8Q Ba8 Qf2 Rac7 Qg6+ Kd5 Qg8 Rc1 Qa5 Rf1 Qab6 Rb1 Q6b7+ Rc6 Na3 Re1 Q8c7 Rf8 Ba5 Rb1 Rb6 Rd8 Bb4 Rf8 Nb5 Rb8 Qbc8 Rb7 Qg6 Rb8 Qa7 Rc7 Qcg8 Re8 Re6 Rf8 Qb8 Rfc8 Na3 Nb3 Re8 Nc5 Qe2 Kd4 Rf8 Rg1 Qc6 Rb1 Qf1 Ke3 Nb5 Ne1 Qg1+ Ke2 Qe4+ Kd1 Qf2 Nc2
B1bKn2N/1P5B/bB1pn3/1Q2Q1rp/Q2p1P2/2pb1knQ/2qr4/2R4N w - - 0 1 legal: proof: e4 a5 b4 e5 h4 f5 d4 g5 a4 gxh4 Ra3 b6 Re3 Bg7 c3 exd4 e5 b5 Re2 Bf8 Re4 fxe4 bxa5 b4 Qc2 b3 Qd1 Bb4 cxb4 Ra6 Kd2 Ra7 Ke1 Ra8 Kd2 Ke7 g4 Ke6 f4 Kd5 e6 c5 b5 h5 b6 h3 a6 e3+ Kd3 e2 a5 h2 g5 b2 b7 Qf8 g6 Qe7 g7 Nc6 a7 Qh4 e7 Nh6 g8Q+ Nf7 e8Q Nd8 a6 Qg4 Be3 Qg7 Na3 Qe5 Qg3 Qc7 Qa4 Nd6 Qh3 Rg8 Qb5 Rg5 Nc4 Ne6 Ne5 Rb8 Qh8 Ne8 a8Q Qc6 a7 b1B+ Kd2 Ke4 Ng6 e1N Ne2 Nd3 Ng3+ Kf3 Qe5 Nc1 Nh8 Ba2 Bd3 Bc4 Bh7 Ne2 Rc1 h1B Kc2 Bg2 Nh1+ Ng3 Bf2 Be2 Kb3 Bd3 Ka4 Bgf1 Ka5 Qe4 Kb6 d6 Be1 c4 Ba5 Qe2 Kc6 c3 Bb6 Qc2 Qb2 Ba6 Qbb5 Bd3 Re1 Nf6 Rc1 Nf8 Kc7 Ne8+ Kd8 Ne6+ Ke7 Bd7 Qa4 Rc8 Qb8 Rc6 a8B Bc8 Qc7 Rc4 Qcc5 Rb4 Qc4 Rb2 Qcb5 Qe2 Qac4 Rd2 Qca4 Nc5 Kd8 Qd1 Qab4 Qc2 Q4a4 Ne6+
K1kb4/Bp3pNB/2n1q2B/p2P1R2/p2bb3/1n3Q1Q/1n2r1P1/Qr1N3B w - - 0 1 illegal: Other
1r6/Pb1q3N/n1rQP3/1b1r2n1/1p1NR1np/1B1kN3/QK1p1p1N/2R3R1 w - - 0 1 legal: proof: h4 e5 g4 c5 f4 a5 fxe5 g5 d4 cxd4 b4 axb4 Bf4 gxf4 g5 Bc5 g6 Bd6 Nh3 Be7 Ng1 Bg5 hxg5 Ra5 Nf3 Ra7 Ng1 Ra8 Kd2 Ke7 Kc1 Ke6 a4 Kf5 c4 Ke4 g7 b5 a5 h5 c5 d5 a6 f5 a7 f3 e6 d3 e7 h4 e8R+ Kd4 e4 f4 e5 f2 c6 d2+ Kb2 b3 c7 f3 g6 b4 Na3 Qd7 Rc1 Nh6 g8Q Bb7 c8N Na6 g7 Rb8 Nd6 Ng4 Ndc4 Rh6 Ne3 Rc6 Bc4 f1B Nb5+ Ke4 Re6 f2 Nf3 d4 Rg1 d3 Nbd4 Be2 Nh2 Bf1 Kb1 b2 Bb3 Be2 Ka2 b1N Kb2 Nc3 Re7 Bf1 Qe6 Be2 g8N Bf1 Qe2 d1R Qf6 d2 Qc4 Re1 Qd6 Bd3 Qf7 Bb5 Nf6+ Kd3 Nh7 Ne4 Qfd5 Bc4 Qa5 Ng5 Qa2 Bb5 e6 Rf1 Rf7 Re1 Rf4 Re2 Re4 Re1 Rb1 Rec1 Ra1 R1c5 Rac1 Rd5
BB6/QB2R3/3qp2r/RQb4r/b1B2Pn1/1P2p1k1/p1np1N1r/1q2Q2K w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 c4 Kf7 g4 Ke6 b6 Ke5 b3 a5 g6 h5 g5 d5 b7 d3 g7 e3 g6 Kf4 c5 a4 c6 h4 c7 a3 Bg2 d2+ Kf1 d4 Nc3 h3 Qe1 d1R Ne4 h2 Nf3 Nf6 g8Q Rh5 g7 Ra6 Qf7 Rd2 g8B Nc6 b8Q Nb4 Qb5 Bd7 c8B Nc2 Bb7 d3 Bb2 Kg4 Be5 Rd6 Rg1 h1Q Nh2+ Kh4 Qh7 Ng4 Bc4 Rdh6 Bb8 e6 Ba8 Bc6 Qa7 Bc5 Bb7 Qd6 f4+ Nf2 Bf3 Re2 Ra2 d2 Ba8 Kh3 Ra1 Ng4 Nf2+ Kh4 Be4 Bd7 Beb7 Qe4 Rh1 Kg3 Kg1 Qh7 Nf3 Bc6 Rh4 Be8 Kh1 Qg6 Nh2 a2 Rc1 Nd4 Rc3 Qb1 Rd3 Nc2 Rd5 Rf5 Rh5 Re5 Rf5 Bc6 Rf7 Reh5 Qbb6 Ba4 Re7 Ba3 Ra5 Bb4 Qb5 Bc5 Nd3+ Rf2 Qd1 Rg2 Nf2 Nb4 Qg1 Nc2 Qe1 Rgxh2+
2k1qR1Q/3R1K2/n2pR1r1/3N1QQr/1PqPpB1p/2n4Q/n1b2pb1/3N4 w - - 0 1 legal: proof: a3 b5 Nc3 c5 Nb1 b4 axb4 c4 f4 f5 e4 fxe4 b3 cxb3 Be2 g6 Bb5 Nh6 Bf1 Ng8 h4 Ba6 g4 Bb5 g5 Ba6 f5 Bc8 f6 Na6 Bh3 Bg7 Bf5 gxf5 g6 Bh6 Kf1 Nb8 Ke1 Bg5 hxg5 Qc7 Bb2 Qb6 Bc1 Qd8 Kf2 a5 Kg3 e5 Kh4 h5 c4 a4 d4 e3 g7 b2 c5 d6 g6 Kd7 Kg5 h4 Qh5 f4 Ra3 e2 Bd2 e1Q Ne2 f3 Nec3 f2 Bf4 Qe2 Re1 Qc4 Nd5 Ne7 g8Q Na6 g7 Bb7 c6+ Kc8 Nbc3 b1B f7 Bc2 Kf6 Rh7 Qg5 Rh5 f8Q Ra7 Ra2 a3 c7 Ba8 Raa1 a2 Nd1 Rb7 Rc1 a1N Kf7 Nb3 Qh8 Rb5 Ra1 Nc1 g8R Rh6 Rg7 Rg6 Ra3 Na2 Rf3 Ng8 Rh7 Nf6 Re2 Ne4 Re1 Kb7 Ree3 Nec3 c8Q+ Ka7 Qh3 Kb8 Bh2 Bc6 Rf5 Kc8 Bf4 Bd7 Rf6 e4 Rf3 Bf5 Re6 Ra5 Qhf6 Bg4 Qff5 Bh5 Qh8 Rb5 Rg3 Bf3 Rg7 Rc5 Rg8 Bg2 Rf8 Nb1 Ra3 Nbc3 Ra5 Rc6 Rb5 Rc5 Rb7 Qb3 Nf6 Qa4 Qgh6 Qa5 Rd7 Qc7 Qfg4 Rh5 Qhg5 Qc6 Q4f5 Qc4 Nd5 Qe8+
3Q2nq/6Bp/NQ6/KpP1pq2/q7/1N1Pn1p1/1k1B1bNB/Rb1rN1r1 w - - 0 1 legal: proof: b4 a5 h4 axb4 e4 c5 g4 f5 a4 g6 h5 c4 Ra3 d6 Rb3 d5 exd5 cxb3 Be2 Nf6 hxg6 Ng8 g5 Be6 Bf3 Bc8 Bg4 fxg4 c4 Kd7 f4 Kd6 f5 Ke5 c5 Kd4 g7 b5 d6 e6 d7 b2 g6 b3 f6 Qb6 d8B Ra6 a5 Bd7 f7 Qb7 Bc7 Bd6 f8B Nc6 Nf3+ Kc4 d3+ Kb4 Kd2 Be7 Qe2 Bf6 Ne1 Qb8 Bh2 Nd4 Qe3 g3 Qh6 Nf5 Rf1 Ra8 a6 Bd4 a7 Bf2 Rg1 Ka4 Kc3 e5 Nd2 Ka3 Rf1 Ka2 Kb4 b1Q Ka5 b2 Nb3 Qc2 Bd2 b1Q Rh1 Be6 Rg1 Nf6 g8N Kb2 g7 Ne3 Ne7 Ng8 Nd5 Qbd1 Qg6 Qh5 Nf4 Qf5 Nfg2 Bc4 Qb6 Qbc8 Nd4 Ba2 Nb3 Bb1 Rh1 Ne7 g8Q Qd8 Qg5 Ng8 Bg7 Qdf8 Qgd8 Qc4 Ka6 Qa4+ Qa5 Q8f6+ Qb6 Rf8 a8N Qd8 Rf1 Rf6 Nc7 Rh6 Bg1 Rh1 Bh2 Rg1 Qf6 Qe8 Qd8 Ne7 Kb6 Rf8 Qa7 Rf7 Na6 Qh8 Qb7 Ng8 Qbb8 Qh4 Ka5 Rf8 Qb7 Qd4 Qc6 Qa4+ Kb6 Qc8 Nf3 Ba2 Bh6 Be1 Bg7 Rf4 Qcf6 Qf5 Qfd6 Rc4 Qc6 Bf2 Ra1 Rc3 Nfe1 Bb1 Qh6 Rc1 Qe6 Qae4 Ka5 Rd1 Qeb6 Qa4+
1KQ5/3pQrr1/N5R1/1Bb3p1/p3q2P/N1q1BB1P/b1Bp2Nk/q1r4n w - - 0 1 legal: proof: a4 c5 f4 e5 b4 exf4 d4 b5 axb5 cxd4 Ra6 Qe7 Rg6 Qd8 Rg4 Nc6 Rg5 Ne5 Rg4 h5 h3 Ng6 g3 Nh4 gxh4 hxg4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 a4 b6 d3 b5 f3 c5 f2 c6 g3 b7 g2 b8Q Ba6 b6 Bc4 c7 Qf6 c8B Rh7 b7 Ba2 Na3 Nh6 Qe1 Ng4 Nf3 g1Q Be3 Qg2 Rg1 d2 Qc7 g6 b8N Rg7 Bb7 Bc5 Na6 Rf8 Qc8 Qc3 Bd5+ Kf6 Bb3 Qh1 Kd5 Kf5 Rg2 f6 Rg3 Rff7 Rg2 Bd4 Kd6 Bc5+ Kc7 Ke4 Bd1 f5 Kb8 f4 Bb3 Ne5 Bc2+ Nd3 Qd1 Kf5 Ne1 f3 Rg4 Ke5 Ng2 Kf5 Qe1 g5 Rd4 Ke5 Rd6 Kf5 Nf4 Qg2 Rg6 Qg4 Ng2 Qe4 Qa1 Nf4 Qc1 Nh5 Qb1 Ng3 Qb4 Bd4 Qe7 Bc5 Bd4 Nh1 e3 Bb4 Bb5 f1Q Ba7 f2 Bc5 Qfd3 Bd4 f1R Bb6 Qe6 e4+ Ke5 Be3 Bc5 Qef8 Qf6 Qfe8+ Kd6 e5+ Kd5 e6 Ke5 e7 Rc1 Qed8 Qe4 e8B Kf5 Qe7 Qa1 Qf8 Qfc3 Qd6 Qed3 Qf6+ Ke4 Qe7+ Kf3 Nc4 Kg3 Na3 Rf5 Bf7 Qe4 Bd5 Rff7 Bb7 Kh2 Bd5 Qe6 Bf3 Qe4
2n1KQ1Q/rRp1p3/2k1P1BN/4pNr1/N3nq2/qP1B2r1/Bb1p2qB/8 w - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 f6 d4 Bg7 a4 bxa4 e5 Bf8 e6 Bb7 Ra3 Bf3 Re3 Bd5 Re5 fxe5 b3 Nf6 b4 Bb3 d5 Ne4 d6 Nxd6 cxb3 Ne4 Qe2 Nd2 Qf3 Bh6 Qd1 Bf8 Ke2 h5 Kd3 d5 f4 a5 g4 a3 g6 a4 b5 h4 g7 a2 g8B a1R b6 d4 b7 h3 g5 a3 f5 a2 g6 h2 g7 Nc4 Ke4 d3 f6 Qd5+ Kf5 Ra6 Kg6 Nb6 f7+ Kd8 Qh5 Ra7 Nc3 Rb1 Nge2 a1Q Ng3 Qb2 Na4 Qa3 Bf4 d2 Bd3 Rc1 Nf5 Qdc5 Bh7 Na6 b8N Qe3 g8B Nc5 Nd7 Kc8 Nf6 Kb7 Ng4 Kc6 Ngh6 Rc3 Ra1 h1Q Bh2 Ne4 Qh3 Bg7 f8Q Nc8 Kf7 Qf4 Bg6 Qg2 B8h7 Rg8 Ke8 Bf6 Bb1 Bh4 Ba2 Bf2 Qh4 Bd4 Qf6 Rf3 Qh8 Bc3 Rg1 Qh1 Rg4 Rg3 Rh4 Qg2 Rg4 Qg5 Rf4 Bb2 Rh4 Nf2 Rb4 Qf4 Rb7 Ne4 Bh5 Nc3 B7g6 Rg7 Be2 Ne4 Bd3 Rg8 Bh5 R8g4 Bg6 Rg5
1q1Q3b/1B6/bb1pQ1n1/3b1B1p/KQBk1p2/b3r3/pPPB3n/N2R2R1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 h4 f6 e4 Ra6 f4 Rb6 d5 cxd5 f5 Ra6 Nc3 Rc6 Nce2 d4 Nf4 gxf4 g5 Re6 e5 fxe5 h5 Rg6 hxg6 e4 Kd2 h5 g7 Kf7 f6 Ke6 b6 Ke5 f7 a4 b7 e3+ Kd3 a3 Kc4 d3 Kb3 e2 g6 e1B Qf3 a2 Ka4 d2 Qe2+ Kd4 Rb1 d1B Qe6 Nh6 g8B Ng4 g7 Nc6 b8Q Ba6 Rh3 Bf2 Bh7 Nce5 g8B Ng6 Bc4 Bf3 Qb4 Nh2 Bd2 Bd5 Rb3 Qb8 Rg3 d6 Rd1 Bg7 f8Q Be3 Qd7 e5 Qe6 e4 Qd8 Be5 Bf7 Re8 Rg2 Re7 Be8 Bf2 Bc6 e3 Bb7 e2 Rg3 e1B Nf3+ Ke4 Rg2 Bb6 Nd4 Bf2 Nb3 Bfc5 Na1 Kd4 Rgg1 Bh8 Qeg8 Re3 Qe6 Nf8 Bf5 Ng6 Qb5 Ba3 Qb3 Nh4 Qb4 Ng6
B1q5/2RPN1pn/N1b5/B5p1/pN3r2/p3bnbP/1b2k2b/1KB2NQQ w - - 0 1 legal: proof: f4 a5 b4 d5 c4 f5 cxd5 b6 g4 h6 e4 fxe4 f5 Ra6 g5 b5 a4 Rf6 gxf6 bxa4 Ra3 Qd6 Rg3 Qd8 Rg5 hxg5 d4 Kd7 Kd2 Kd6 Kc2 c5 h3 e5 f7 c4 b5 a3 b6 a4 f6 c3 b7 e3 Bg2 e2 Nd2 e1B Kb1 e4 Ngf3 e3 Ne5 e2 Nd3 Bd7 Nf1 Bd2 Nb4 Nc6 b8N e1B N8a6 Bg3 Bf3 Be7 f8N Be3 f7 Nf6 Ng6 Rh4 f8Q Qc8 Qe8 Bd8 Qe4 Ne5 Ne7 Bc7 Qg4 Bh2 Qg1 Bc6 Be4 Nh7 Qf3 Kd7 d6 Ke6 d7 Rf4 d8B Bg3 Qd1 Nf3 d5+ Ke5 d6 Bb8 Qe1 Kd4 d7 Bh2 Ba5 c2+ Ka2 Bb5 Ba8 Bc6 Bd2 c1B Kb1 Bb2 Bc1 Bg3 Rh2 Be5 Rc2 Bh2 Qh1 Ke4 Qf2 Bd6 Qfg1 Bde5 Nbd5 Kd3 Rc3+ Ke2 Ndb4 Rh4 Rc4 Beg3 Rc5 Rf4 Rc4 Bd5 Rc7 Bc6
8/5rkr/BNpp4/P1bPR1qp/1Q3N1b/1Q5Q/nqp1KB2/Q1r2Nr1 w - - 0 1 legal: proof: b4 e5 f4 exf4 a4 b5 g4 a6 c4 bxc4 b5 a5 Ra2 Ra6 Rb2 Ra8 Rb4 axb4 h3 g5 Kf2 f5 Bb2 f3 Ke1 f4 Bc1 Bb7 Qc2 Be4 Qd1 Bf5 gxf5 Nc6 h4 g4 Ba3 Nd4 Bb2 Ne6 Bc1 Ng5 hxg5 Bc5 Rh5 Be7 Rh1 Bf8 e4 Kf7 d4 h5 f6 f2+ Ke2 c3 b6 b3 e5 c2 a5 c6 e6+ Kg6 f7 b2 e7 g3 e8Q d6 b7 g2 b8Q Ra7 Nh3 g1B Qe3 Bg7 Nd2 b1Q Qb4 Bf6 f8N+ Kg7 g6 Rh7 Nd7 Qb2 Nb6 Bh4 d5 Qdf6 Qeb3 Qg5 Qe1 Rf7 Rh2 Kh6 g7 Nf6 g8Q Ne4 Qc8 Kg7 Rh1 Qc3 Ba3 Qb2 Qa1 f3+ Kd3 Qbf6 Nf4 Qb2 Qh3 Nc3 Ke3 Na2 Ba6 f1R+ Kd3 f2 Ke2 Rd1 Nf1 Rb1 Rh2 Rc1 Rg2 Rh8 Rg3 Rh6 Re3 Rh7 Re5 Qd4 Ng3 f1R Bb2 Rfd1 Nf1 Be3 Bc3 Bef2 Bd2 Qb2 Be1 Be3 Bf2 Bc5 Ne3 Rh1 Nf1 Rg1
2b2k2/RRpr4/1Rn1P1B1/Np1n1qbQ/1p5Q/1P1q3b/5pR1/Q1N2b1K w - - 0 1 legal: proof: c4 a5 f4 e5 h4 exf4 b3 g5 Bb2 b5 a4 Ra6 Bc3 Rb6 Bb4 axb4 a5 gxh4 axb6 d5 cxd5 Be6 Kf2 Bh3 Ke1 Bc8 Kf2 h5 e4 f5 g4 f3 d4 f4 g5 h3 b7 h2 d6 h4 g6 h3 d7+ Ke7 g7 Rh5 d5 Rf5 e5 Rh5 d6+ Kf7 Bd3 Rh4 Nd2 Na6 b8R Rg4 Ne2 Be7 Nc1 Nf6 g8R Rg7 Rb7 Nd5 Nc4 Nb8 Raa7 Bg5 Na5 Nc6 Bb1 Qf6 d8Q Qf5 d7 Qd3 Rf1 h1B Kg1 f2+ Kh2 Bg2 Qh5+ Qg6 Rg1 f1B Re8 f3 Re6 f2 Qf6+ Kg8 Bc2 Qf7 Bg6 Kf8 Rd6 Rh7 e6 Rg7 Qa1 Qf5 Be8 Qd3 d8Q Rd7 Qdf6+ Rf7 Qfd4 Rd7 Qdh4 Qf5 Kg3 h2 Bg6 Bh3 Rg2 Nb8 Rdb6 h1Q Rg1 Qhf3+ Kh2 Q3d3 Kh1 Nc6 Rg3 Ne5 Rg2 Nc6
K3BNn1/1N2p3/6bb/1p2Pnnr/1PQ1B3/3N1p1b/QBrpk3/B2n2R1 w - - 0 1 legal: proof: f4 g5 a4 c5 d4 cxd4 fxg5 h5 g4 hxg4 b4 b5 a5 Qb6 axb6 a5 Ra3 a4 Rb3 axb3 Kd2 d5 Kd3 Kd7 c4 Ke6 h4 Ke5 e4 f5 c5 b2 h5 g3 g6 g2 h6 f4 c6 f3 g7 Bb7 c7 Rh7 c8Q Ra3+ Qb3 Ra7 Ne2 g1N Qa2 Ra6 Na3 b1N Qcc4 Bc6 b7 Ra8 Nf4 Nc3 Bb2 Nh3 Rg1 Bd7 Be2 Nc6 b8N Rh8 h7 Ng5 Ba1 Bh3 Nd7+ Kd6 Bd1 Rc8 Bc2 Nd1 Bb2 Nf6 g8B Bh6 Bf7 Ng8 Nf8 Ke5 Be8 Rc7 Ne2 Rc8 Nc1 Kf4 Qc5 Rc7 Nc4 Rc8 Nd6 Rc7 Kd2 d3 Qcc4 Nd4 Nb7 Nf5 Ba1 Nb2 Kc3 Ke3 Bb1 d2 Nd3 d1B Bc2 Ke2 Bb1 Nd6 Kd4 Nf5+ Ke5 d4 Kd5 Ba4 Bc2 Nd1 Bb2 Rd7+ Kc6 Rc7+ Kb6 Bb3 Ka7 Rc5 Ka8 Rc6 Qc3 Bf7 Bb1 Bg6 Qcb3 Rc2 Qc4 Nf6 Ba1 Rg8 h8B Rg7 Nf2+ d3 Bb2 Ng8 Ba1 Rf7 Bhb2 Rg7 e5 Rh7 Nc5 Ke3 Nb7 d2 Nd3 Bg7 Nd7 Rh5 Nf8 Bh6 Nf4 Rc1 Be4 Rc2 Nd3 Ke2
8/pq2P1Kn/Pp1N2b1/2pQ1q1R/2nqB1n1/BR1Bb2Q/3Q2p1/3Bb1k1 w - - 0 1 legal: proof: c4 c5 g4 d5 b4 dxc4 g5 b6 b5 Na6 g6 hxg6 Qb3 g5 Nf3 g4 Ng1 Rb8 Qa4 Rb7 Qc2 Rc7 Qd1 Rc6 bxc6 g5 e4 e6 f4 Rh3 d4 Qd7 d5 Rb3 f5 Qd8 Nc3 e5 Nce2 Rf3 Nd4 exd4 e5 Rh3 Qa4 Rh6 Qd1 Re6 fxe6 Qd7 Bd2 Qe7 Bc1 Qd8 Kd2 Ke7 h4 f5 a4 g3 h5 d3 Kc3 g2 h6 g4 c7 d2 h7 g3 h8Q f4 a5 f3 Rh6 f2 Nf3 g1B Be2 f1Q Rb1 Nf6 Ba3 Nb4 a6 Be3 Bd3 Nh7 Nd4 Nc6 Nb5 Qf5 Rh5 Bfh6 Rb3 Na5 Nd6 g2 Qc1 d1Q Qd2 Qdf3 Be4 Bd7 c8B Be8 Bd7 Bhg5 Ba4 Bh4 Kc2 c3 Kd3 c2 Bb5 Qd7 Ba4 Kd8 e7+ Kc7 e6 Bg6 e8B Be1 e7 Nc4 Qhc3 Qd8 Beb5 Qh8 Qe5 Qd8 Qh2 Qdd7 Qh3 c1N+ Kc3 Nd3 Kc2 Ndb2 Kc3 Ne5 Bbd3 Q3f4 Kc2 Ng4 Kc3 Nd1+ Kc4 Qc6 Nf7 Kd7 d6 Ke6 d7 Qb7 Nd6 Ke5 d8Q Qf2 Qg8 Kf4 Qd5 Nb2+ Kb5 Qb8 Kc6 Qa8+ Kc7 Qb7+ Kd8 Qg1 Rb5 Nc4 Bd1 Qf2 Rb4 Qh4 Rb3 Qhf6 Qf7 Qd4 Ke8 Ng5 Kf8 Nh7+ Kg8 Qc3 Qh1 Kg3 Qd5 Qb4 Kg7 Qa4 Qc1 Kf2 Qh3 Kg1 Qd2 Nce5 Rc3 Qd4 Rb3 Nc4+
k2K1n2/1nQ2p2/2P2Ppq/1p1Rr3/2B2BBb/2N5/2BQqpnN/1Q2q1q1 w - - 0 1 legal: proof: b4 a5 d4 axb4 f4 c5 a4 cxd4 f5 e5 Ra3 Qf6 Rf3 Qd8 Rf4 exf4 h4 b5 h5 g6 h6 Nf6 Bd2 Rg8 Rh2 Rg7 Bc1 Ng8 Rh1 Bd6 Be3 Na6 Kd2 Ke7 Rh3 Bb7 Qc1 Nf6 Nc3 Qa5 Qd1 Rh8 Nb1 Bc8 Rh5 Nb8 Rh4 Qd8 Ke1 Ng8 Bc1 Ke8 Rh1 Bf8 hxg7 h5 Rh3 h4 Rh2 Bb7 Rh1 Bf3 g3 Bh5 g4 Bd6 gxh5 Bf8 Kf2 d5 Kf3 Kd7 Kg4 Kc6 c4 Kb7 e4 b3 a5 b2 c5 d3 e5 h3 h6 d4 e6 f3 e7 f2 Kg5 d2 h7 h2 a6+ Ka7 Bc4 d3 Nf3 Qb6 e8B Ne7 g8Q Qa5 Kf6 Qa1 Bd7 Nc8 Nc3 Ka8 a7 b1Q Qb3 d1Q Bf4 Bd6 Qd8 d2 Qc7 Re8 h8Q Re5 Qhd8 Qe2 Rd1 h1Q Nh2 Bf8 Qb4 Nd6 Bde6 Qc1 Qb1 Nb7 Qdd6 Bh6 Ke7 Qg1 f6 Bg5 Qd4 Bh4 Ke8 Na5 Kd8 Nd7 Bg4 Nf8 Re1 d1N Qd2 Qef1 Re3 Qab2 Rd3 Ne3 Rd5 Ng2 Qd6 Kb7 a8B+ Ka7 Bb7 Qfe1 Qc7 Qa2 Bbc8+ Ka8 c6 Qac2 Bcf5 Qd3 Qd1 Qde2 Bc2 Qce3 Qd4 Qh3 Qd2 Qhe3 Bg3 Qh6 Bf4 Nb7+
3N4/k2PQRBN/4bpb1/p1pb4/1qb2K2/N2Rp1q1/1rP4Q/1rbQ1N2 w - - 0 1 legal: proof: f4 e5 a4 g5 h4 gxh4 e4 d6 a5 exf4 e5 d5 Bd3 Bh6 Bg6 Bf8 Be4 dxe4 b4 b6 b5 Nd7 a6 Nc5 Na3 Nb7 axb7 a5 Nf3 Nf6 Ng1 Nd7 Nb1 Nc5 Qe2 Be7 Qd1 Na6 bxa6 Bf8 Ke2 Kd7 b8Q Kc6 g4 h5 d4 b5 a7 f6 g5 f3+ Ke3 b4 e6 f2 g6 f1B g7 b3 g8N b2 e7 h3 Na3 b1Q Kf4 h2 Nh3 h4 Ng5 h3 Nh6 Be6 Nf5 Bfc4 Nh7 Qb4 e8Q+ Qd7 Ng3 e3 d5+ Kc5 d6 Qg7 Rg1 h1B d7 h2 Nf1 Be4 Qe7+ Kc6 Rb1 h1B Rb3 Bg6 Rd3 Bhd5 Bd2 Qg8 Be1 Qg7 Bh4 Rg8 Bg5 Rh8 Bh6 Rg8 Qbe8 Rb8 a8N Kb7 Rg4 c6 Nc7 Ka7 Qd6 Rh8 Qee7 Qg8 Bg7 Rb5 Ng5 Rh1 Nh7 Rg1 Qe5 Rb6 Qf7 Bc5 Qe7 Bd4 Qh5 c5 Qh2 Bb2 Rh4 Bc1 Rh3 Bef7 Ne6 Rh1 Nd8 Bfe6 Rh5 Bd2 Bh8 Rb5 Qe1 Qb2 Ng3 Rb4 Ng5 Be8 Rh7 B8f7 Qee2 Rb1 Nf1 Bc1 Qd1 Qc3 Rg7 R4b2 Nh7 Bh5 Rf7 Qb4 Qhe2 Qg2 Bg7 Bg6 Qf2 Qg1 Qh2 Qg3+
1Rr1Bq2/p1Bn2Q1/4KNpr/Q1qNn3/1p1P4/4r3/QPB1pk2/2B2qq1 w - - 0 1 legal: proof: f4 d5 g4 b5 a4 g6 c4 dxc4 a5 Bd7 g5 Bg7 f5 Bd4 d3 Bb6 axb6 Bc6 d4 Be4 Ra3 Bc2 Rg3 Bd3 exd3 gxf5 g6 f4 g7 Nh6 Rg5 Ng8 Rg6 hxg6 Kd2 Kd7 Kc3 Kc6 h4 Kd5 h5 c5 b7 e5 h6 f5 h7 b4+ Kd2 f3 Ke3 f2 Rh2 c3 Nh3 c2 Ng5 c4 Ne4 Nc6 b8B c3 Bc7 f4+ Kf3 Rc8 Nf6+ Ke6 Ke4 f3 Bg2 f1R Rh6 f2 d5+ Ke7 d6+ Ke6 d4 Re1+ Qe2 f1Q d7 Qf8 d8Q Qg1 Rh3 Qf1 Re3 Qg1 Qa6 Re2 Kf3 Kf5 Qa2 e4+ Kg3 Qf1 Qdd5+ Ne5 Qda5 Kg5 Bf3 Re1 Bd1 Kf5 Kh4 Kf4 Re2+ Kf3 Kg5 e3 Rh2+ Kg3 Re2 Nh6 g8B Ng4 Bf7 Kf3 Be8 Nd7 Rh2+ Re2 Rh5 Kf2 Kf4 Qg1 Rb5 Nge5 Rb8 Re1 Ke4 Re2 Kd5 Re1 Bd2 c1Q Ke6 c2 Nc3 Qb1 Ncd5 c1Q Bb3 Qcc5 Bc1 Qd3 Bc2 Qdf1 Bb3 e2 Bc2 Rd1 Rb7 Rd3 Rb8 Rg8 h8Q Re3 Qh7 Rh8 Qg7 Rh6
KbqNr1QQ/3p1B2/3Qnr2/p3PqnQ/1N2pk2/2p3p1/PBN5/2b3R1 w - - 0 1 legal: proof: d4 f5 c4 e5 g4 b5 e4 bxc4 dxe5 fxe4 f4 Qg5 f5 Qd8 f6 Bb7 b4 h5 Nd2 Bd5 Rb1 Be6 Rb3 Na6 Rg3 Bf5 gxf5 Nb8 Rg4 hxg4 Kf2 Kf7 Ke3 c5 h4 a5 h5 g5 b5 g3 b6 g4 h6 c3 b7 c4 Kd4 g2 h7 g3 Ndf3 c2 Bb2 c1B Ne1 c3 Bc4+ Ke8 f7+ Ke7 Kc5 Nf6 Ne2 g1Q+ Nd4 Rg8 h8Q Ra7 Qdh5 Qf2 Rg1 Bch6 Nd3 Qc8+ Kb6 Bc1 Nb4 Na6 b8N Nc5 Ndc2 Nh7 Bd5 Ng5 f6+ Kd8 Bb3 Bd6 Bc4 Re8 f8Q Rc7 f7 Rc6+ Ka7 Qf1 Qfg7 Ke7 Qgg8 Bc7 Ka8 Rf6 Bb5 Ke6 f8Q+ Kf5 Qd6 Qh3 Bc4 Kf4 Bf7 Qf5 Ka7 Qh3 N8c6 Bb8+ Ka8 Nce6 Nd8 Qf5
2K3nB/Rq2bq2/r2p1p1Q/1B3p2/P5Bn/4R1qQ/1NB1Ppp1/2kr3Q w - - 0 1 illegal: No proof kernel
1k3BR1/1N4b1/1p2Q1p1/2Q1b1r1/pP3nQ1/qBpp1QP1/4nn2/1q2KRR1 w - - 0 1 legal: proof: f4 e5 a4 exf4 a5 Qf6 Ra4 Qe7 Ra1 Qd8 a6 h5 Na3 b6 Nb1 h4 Nh3 Nc6 Ra2 Rb8 Ra1 Rb7 axb7 a5 Ng1 Nb8 c4 Rh5 Nc3 Rh7 Ne4 Rh8 Ng3 Ba3 Nf5 Bf8 g3 h3 Ne3 Ke7 Ng2 hxg2 Qb3 Ke8 Qc2 Ke7 Qd1 Ke8 c5 Na6 c6 Nb4 b8R Bb7 cxb7 Nc6 d4 Na7 d5 Be7 d6 Bxd6 Qd5 Ba3 Qd1 Bf8 h4 f5 b4 c5 e4 d5 h5 Kd7 e5 Kc7 h6 d4 e6 d3 h7 f3 e7 f2+ Kd2 f4 e8Q f3 Rh5 c4 Ra4 g6 Rh1 Ne7 Nh3 g1B Be2 f1Q Nf2 Nb5 Ra1 Nc3 Ne4 f2 Nc5 Ned5 Qe6 Bg7 Ra8 Re8 h8Q Nf4 Qf8 a4 Qc2 Qf6 Bd1 Nce2 Qg4 Qb2 b8Q+ Kc6 Nb7 Re5 Qg8 Qa3 Qbf8 Kc7 Q8e6 Rg5 Qc3 Be5 Bb3 Bg7 Bb2 Qb1 Bc1 f1N+ Ke1 Be3 Rg1 Nd2 Qff6 Ne4 Rg8 Bd4 Qff5 Nh3 Qff3 Bde5 Qd4 c3 Qde3 Bf8 Qc5+ Kb8 Rf1 Nef2 Rg1 Qba2 Be3 Nhf4 Bd4 Bd6 Bg7 Be5 Rd1 Qb1 Bh6 Ka7 Rc1 Bfg7 Rd1 Bgf6 Bf8 Bg7 Kf1 Ne4 Rc1 Nf6 Kf2 Ka8 Rcf1 Kb8 Bd1 Ne4+ Ke1 Nc1 Bc2 Nf2 Bb3 Nce2+
1n2KQ2/1k1p1QPN/b1rpp2b/3qqN1R/1N6/1prp3q/3RBNP1/1Q6 w - - 0 1 illegal: No proof kernel
4k1q1/1r1pbpp1/QN1BB1Q1/3B2p1/bn2P2Q/R3bP2/1r1p1Q1K/2q3N1 w - - 0 1 legal: proof: b4 e5 g4 c5 h4 b6 d4 exd4 a4 b5 axb5 cxb4 h5 Nh6 g5 Nc6 gxh6 Ne7 Ra6 Ng8 Rg6 hxg6 e4 a5 c4 d3 b6 g5 f3 d2+ Kf2 b3 Kg2 b2 h7 a4 b7 a3 b8Q a2 h6 a1B c5 Ra3 c6 Ra5 c7 Ba3 Qb5 Bb4 Qa6 Be7 Bc4 Re5 Be6 Rb5 Kh2 Kf8 Nc3 b1Q Qe2 Bf6 Na4 Ke7 Ba3+ Ke8 Bd6 Be7 Nb6 Bd4 Qf2 Bb7 c8B Bc6 Bb7 Nf6 Ba8 Rg8 h8Q Qc1 Qh7 Rb2 Qg6 Be3 h7 Ba4 h8Q Nd5 Qhh4 Nb4 Bad5 Rh8 Nh3 Qc3 Ra1 Qc1 Ra3 Rh6 Qgh5 Rf6 Ng1 Rf5 Bc6 Rb5 Qg6 Qc8 Na8 Rb7 Bcd5 Q8c3 Nb6 Qf6 Qgh5 Qf5 Qh6 Qh7 Qg6 Qg8
QNKRn3/1n6/p1R2Nkn/Q3Qq1p/pRb2P1R/6pp/n2r1bBP/8 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f6 a4 bxa4 g4 Qd7 d6 Kf7 g5 Qd8 d7 fxg5 d4 a6 d5 Ra7 e5 Rb7 Bf4 Rb5 Bg3 Rb6 Bh4 Rd6 exd6 gxh4 Kd2 c5 Kc3 e5 Kc4 h5 f4 g5 b4 g4 b5 h3 b6 e4 b7 e3 Qd4 e2 Nd2 e1N Bg2 Qe8 d8Q Bf5 d7 Bc2 d6 Qe7 Kd5 c4 Qe5 c3 Ne4 Qe8 Rc1 Nd3 Ne2 Nh6 Nd4 Nc5 Rhg1 Bd3 Nf6 c2 Qa5 Qc8 d8Q Qf5 d7 Kg6 Nc6 Bg7 Kd6 Bc4 Qc8 Rd8 Kc7 Bf8 Rcd1 c1N Rd6 Na2 Re6 Re8 d8R Nbd7 b8R Re7 Rbb1 Nb7 Rb4 Rf7 Qb8 Bc5 Qa8 Bf2 Kc8 Re7 Nb8 g3 Rc1 Re8 Rc6 Re6 Rd1 Rd6 Rg8+ Kf7 Rg4 Rd2 Rh4 Kg6 Kc7 Nd6 Kd8 Ne8 Kc8 Nc5+ Qe6 Rd7 Qe5 Nb7 Rd4 Re7+ Rd7 Re6 Rd8 Rd6+ Qe6 Rd7 Qee5 Rd2+
1qR5/Q1Br2p1/P4p1N/N2p1qq1/3p3p/1n1nQBPk/3Np1N1/2rQ2K1 w - - 0 1 illegal: No proof kernel
r1R1bQ2/1r2BR1p/4B1rP/2q2q1n/1n1n2n1/1Q2b1R1/1R1K1bP1/NBn4k w - - 0 1 illegal: No possible last move, all moves rejected
q3nN1b/Qq1r1n2/1Nb2Kp1/n1rq2P1/NQ1n3P/3r1B2/1nk2NRR/Q7 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Be3 cxd4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 d5 e4+ d3 b4 f5 c3 a5 g5 a4 b6 g6 b7 g2 b5 a3 b6 f3 Nh3 g1N Qc2 a2 Qd1 d4 Qc2 f2 Qd2 Kb3 c4 f4 c5 f3 c6 Bg7+ Kf4 Ra3 c7 Nc6 b8Q Nh6 b7 Bd7 c8Q Nf7 e5 Ne2+ Ke4 Ra7 Qf4 d2 e6 d1R e7 d3 e8N d2 Bg2 f1N Qf5 f2 Qfe5 Ne3 Nc3 f1Q Qbd6 Kc2 b8N Nf5 Rh2 Qh1 Qb4 Rb7 Rb1 a1Q Nf2 Qa8 Nf6 Na5 Qcc5 Re8 Qcb6 Bh8 Nh7 Ng7 Na4 Qe7 Qa7 Rc8 Ra1 Rc5 Nf8 Bb5 Nbd7 Bc6+ Ke3 Rc7 Ndb6 Rb7 Rb1 Qc7 Qa1 Nd4 Bd5 Qcc8 Kf4 Rd7 Bg2 Qcb7 Bd5 Re1 Rd1 Re3 Rg1 d1N Rg4 Rd3 Rg3 Nd8 Ke5 Nb2 Kf6 Qe4 Rgg2 Nf7 Be6 Qd5 Bg4 Qbc8 Be2 Qcb7 Bf3 Ne8+
K1q1bkr1/5q1B/2NbQr2/n4p2/1RR1nP2/nQr2QPr/5RQr/1q4B1 w - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Nh3 cxd4 Nc3 d3 Ng1 e6 Nd5 exd5 Rh2 d4 Rh3 Na6 Rh1 Nb8 Kd2 d5 e4 h5 c4 f5 f4 a5 b4 a4 b6 h3 b7 h4 c5 h2 c6 h3 e5 a3 b5 a2 g3 Bd7 b6 Nf6 c7 Bd6 c8Q Ra6 e6 Rg8 e7 Nc6 b8R Na5 Qcc2 Qc8 b7 Bb5 Rb1 a1N Ne2 Bc6 Rg1 h1R Rg2 h2 Rf2 Rb6 Qa2 Nc2 Rb4 Na3 Rc4 Kf7 Bg2 Be8 Bf3 Rb3 Bh5+ Kg7 Bg6 Rc3 Bh7 Kf7 Qf1 Ne4+ Ke1 Kg7 Be3 d2+ Kd1 Rg1 Qb2 h1R Qc2 Rh2 Qd3 Bc6 e8Q Rgh1 Qe6 Kf8 Qc2 Rh3 Qd3 R1h2 Qg2 Nf6 Qde4 Be8 Qef3 Ne4 Ra8 Rh6 b8Q Rf6 Qb3 Rh3 Rb8 Rh2 Nc1 Rh3 Ke2 d1R Rb7 Rdh1 Nd3 R1h2 Ne5 d3+ Kf1 d4 Rbb4 d2 Ke2 Rc1 Kd3 Rc2 Nc6 d1Q+ Rd2 Qa1 Bg1 Qb1 Rf2 Rc3+ Ke2 d3+ Ke3 d2+ Kd4 Ng5 Kd5 d1Q+ Qd3 Qh5 Qdf3 Be5 Kc5 Bb8 Kb6 Bd6 Ka7 Ne4 Qh1 Bb8+ Ka8 Qf7 Qhg2 Bd6+
2QBn3/3rNKN1/3rBn1b/1Nb1p3/q3P1Bk/1n1bQ1bP/1R5B/1r1q3b w - - 0 1 legal: proof: d4 h5 b4 c5 g4 hxg4 a3 cxd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Rh6 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 Kd3 Kg6 Kc4 Kh5 Kd5 g5 e4 a5 f4 e5 c4 a4 b6 g2 f5 d3 b7 d2 b5 a3 f6 a2 h3 a1N b6 Rh7 f7 Ra6 c5 Bh6 f8B Kh4 c6 g3 c7 g4 Bca3 Qe8 Bg7 Nb3 Ne2 g1R Bc5 g2 Qe1+ g3 Na3 d1B Nf4 Bf3 Ne6 d6 Bc4 Qa4 Qf2 Nd7 b8Q Rb1 b7 g1B Rh2 Bh1 Qe1 Rc6 Rb2 Bh2 Bg1 Ra6 Qc3 g2 Qe3 Bg3 Bh2 Rc6 Qa8 Rb6 b8N Ba6 c8B g1B Qd3 B1f2 Nc6 Bc5 Qe3 Bb5 Bf8 Re7 Ng7 Rf7 Ke6 d5 Qg1 d4 Qe3 d3 Bd5 Bc4 Nb5 d2 Bd6 d1Q Bc7 Bd3 Bd8+ Ndf6 Bd7 Ne7 Qc8 Nf5 Bc4 Nd6 Bd5 Rf8 Ke7 Ra6 Bg4 Rf7+ Ke6 Rc7 Ne7 Nde8+ Kf7 Rd6 Bde6 Rcd7
1r2RBnb/2q1Nnqk/2B1bb2/2B4r/2b1p1QB/2n1P1N1/b1P2Q2/2K1Nq2 w - - 0 1 legal: proof: d4 h5 b4 c5 g4 hxg4 a3 cxd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Rh6 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 f4 Kg6 h4 d5 b6 e5 b5 a5 b7 d3 b6 g2 Nh3 g1N Ba3 a4 Bc5 a3 Rh2 d4 Rg2 g3 Nc3 a2 Ba3 a1B Rh2 g2 Ng5 Qc7 Bb2 Nc6 b8N Nd8 b7 Be7 f5+ Kh6 h5 Nf7 Nf3 g5 Ne4 g4 Ba3 g3 Kc1 d2+ Kb1 d3 Ne1 Kg7 Nc6 Bg5 Rh4 Rb8 e3 Ne2 Bd6 g1Q Bc5 g2 Rg4 Rh7 Rh4 Ra8 h6+ Kh8 Rf4 Rb8 Rg4 Bd8 Rg6 Bd4 Re6 Nc3+ Kb2 Bd7 Be2 Bg5 Bf3 Qf1 Qe2 d1B Qf2 g1Q Kc1 Rc8 Re7 Be2 Re8 Rb8 Bg2 Be6 f6 Ba2 Bh1 Nd6 f7 Qgg2 Ne7 d2+ Kb2 d1B f8B Qg4 Ng3 Bec4 Kc1 Nf7 Bc6 e4 Bd5 Qb6 Bc6 Be6 Nh5 Be2 Ng3 Rc8 b8Q Be2c4 Qbf4 Rb8 Q4f3 Qc7 Qd1 Rg7 h7 Rg6 Bd5 Rh6 Bc6 Rh5 Qdf3 Qf5 Qg4 Qfe5 Bh6 Bh4 Bg5 Kg7 h8B+ Kh7 Bg7 Qf6 Bf8 Qh6 Qg2 Bh8 Bf6 Bg5 Q2e2 Qg7 Qf2 Bh6 Bh4 Bg5 Bd6 Bf6 Bb4 Qa7 Bc5 Qc7
b6R/pr4N1/P1K3qr/1Pnrn1Bn/5r2/4N1NR/r1QqRq2/k1b2N1Q w - - 0 1 illegal: No possible last move
rR4qQ/5q1n/2r4k/pBBn1Q1n/P1B2Pq1/2b2Q1b/R5N1/BnrK3n w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Nc3 f6 Nce2 fxg5 Ng3 hxg3 Qf3 g4 Qe2 Kd7 Qd1 Ke8 c4 Kf7 h4 Kg6 a4 a5 d4 b5 f4 e5 d5 g2 c6 b4 c7 g3 c5 e3 d6 b3 c6 e2 d7 e4 Qd6+ Qf6 d8B b2 Kd2 e1R Qe5 b1N+ Kc2 e3 Qd5 e2 Qe5 Bb4 Qd5 Na6 Bb2 Rc1+ Kb3 e1N Ra2 Rh6 Qf3 Nd3 Rh2 Bh3 c8B Nc7 Ne2 g1Q Qg2 Nf2 Nc3 Qf7+ Be6 Nf6 Ba1 Nh1 Qf3 g2 h5+ Kh7 Rb2 g5 Nd1 g4 Ne3 g3 Be7 Rc4 Bd7 Ncd5 c7 Rc1 c8Q Be1 Rc2 Bc3 Ra2 Rg6 h6 Nh5 Bc6 Re6 Bc5 Kg6 h7 Kh6 Bcb5 Rc6 Qf5 Bd2 Qf2 Bc3 Bfc4 Qd1+ Rc2 g1Q Ba6 Qf3 Rb2 g2 Qf1 Qg3 Q1d3 Qgg8 Qde4 Rd1 Kc2 Re1 Rb8 Re2+ Kb3 Rd2 Bab5 Qd1+ Nc2 Qe2 Ne3 g1N Rg2 Qeg4 h8Q+ Qfh7 Rf2 Nf3 Ng2 Ng5 Qf3 Ra2 Rb2 Qf7 Kc2 Qg8 Qe5 Qhf7 Kd1 Nh7 Rd2 Rb2 Qh8 Ra2 Rd4 Re2 Rd2 Rf2 Rb2 Rc2 Ra2 Rc1+
2b3kN/3rn1q1/Br4q1/1K1NbPbr/3Nqp2/2Rr2n1/B4P1r/1QB2Q1B w - - 0 1 illegal: No proof kernel
q3N1b1/1K1R2b1/1nNq1r2/1n1b3N/1pRPQr1R/1n2QRrB/bP6/b6k w - - 0 1 illegal: No proof kernel
qN1Kr1N1/2nP4/2qQp1Qb/6rQ/Q1q1Bq2/1RR1P1k1/3n3q/r2b2Nn w - - 0 1 legal: proof: g4 f5 c4 d5 a4 dxc4 b3 h5 Ba3 b5 axb5 h4 Bd6 fxg4 Bg3 hxg3 h4 Kf7 d4 Kg6 Kd2 Kh5 Ke3 c5 Ke4 g5 Ke5 a5 f4 a4 e3 c3 b4 g2 f5 a3 b6 a2 f6 c4 b5 c2 d5 c1Q f7 c3 b7 c2 d6 Qc7 b6 Na6 b8N Nf6 b7 Ne4 Qd4 g3 Ne2 Kg4 h5 g1N h6 g2 h7 Bh6 f8Q Nf3+ Kd5 g1Q Qd2 Ng3 Qf7 Re8 h8Q Qh2 Qd1 Nd2 Nbc3 e6+ Ke5 Bd7 Kf6 Re7 Rb1 a1Q Bg2 Ba4 d7 Qd6 Bc6 Nc7 Rb3 Qa2 Re1 Nh1 Ng1+ Kg3 Qg6 g4 Be4 Ra5 Rf1 Rg5 Nd5 Qca1+ Rc3 c1Q Qb3 Qcc2 Rb1 Qc6 Qb4 Qac4 Rb3 Qa3 Qhh7 Qd1 Qh5 Qdf1+ Qf5 Qf4 Qd6 Rh7 Ne7 Rhg7 Ng8 Re7 Rb4 Bd1 Rbb3 Qa8 Qb4 Kf2 Qa4 g3 Qg6 g2 Qh5 Re8 Kf7 Kg3 Qg6 Rf8+ Ke7 Rf7+ Kd8 Re7 Qh5 Qa5 Qfg6 Qad5 Na6 Qa5 b8Q Qad5 Nf3 g1R Qbb4 Qa8+ Nb8 Qdc6 Qb6 Be2 Qba6 Ra1 Ng1 Bd1 Qb6 Qf3 Qbb4 Qf4 Qd6 Re8+
2k1n1Br/1R1p1Q2/1n1Q2qq/br1bKq2/5NR1/1Q3P2/3P2N1/nQrr1Rr1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Ba3 g5 axb5 gxh4 b6 Bb7 b5 Bc8 Bb4 cxb4 Ke2 e5 Ke3 h5 g4 a5 c4 h3 b7 h2 c5 h4 g5 b3 b6 a4 f3 b2 g6 a3 g7 h3 c6 a2 c7 Qf6 Qe1 Qg6 Qg3 Bb4 Qf2 Na6 b8R Ne7 b7 Ba5 Qg3 Nd5+ Ke2 e3 Na3 b1Q Qf2 e4 Qg3 Nb6 Qd6 Qb5+ Nc4 Qbf5 Rb1 a1N Rb4 Ra7 Na3 Ra8 Nc2 Rh5 Ne1 Rg5 Kd1 e2+ Kc1 e3 Kb2 Rh5 Ng2 e1R Kc3 e2 Kd4 Rd1 Ra4 e1R Ne2 Rc1 Nef4 Red1 Bc4 Rh8 Rg1 h1R Rf1 h2 Bg8 Rg1 Rb4 h1Q Ra4 Qb1 Ke5 Qh3 Bb3 Qhh6 g8Q+ Qf8 Qc4 Qfh6 Qcb4 Qbd3 Bg8 Ra7 Qb3 Qc2 Ra8 Qb1 b8Q Rb7 Ra7 Qbf5+ Kd4 Nc4 Rb4 Rb5 Rb7 Nb6 Ra4 Nb4 Qb1 N4d5 Qb3 Qfh3 Ke5 Nf6+ Nd5 Qhg4 Rd4 Qgh3 Rg4 Q3h5+ Rg5 Na8 Rb6 Rbc5 Qb1 Qh3 Rb2 Q3h5 Qb4 Bb7 Qa4 Bc6 Rb7 Rb5 Qab3 Qh3 Rg3 Nb6 Rg5 Rb4 Ndf4 Rb5+ Qdd5 Ke7 c8Q Ne8 Qb8 Qg4 Qd6+ Kd8 Nh4 Kc8 Nhg2 Rb4 Qf7 Bd5 Qfe6 Rb5 Qf7 Qc2 Rg7 Qgh5+ Rg5 Q5g6 Rg4 Qcf5+
qBB3rN/n3Q1q1/QNNBpPN1/8/2q1PKb1/3k4/rbn3bR/n2b3r w - - 0 1 legal: proof: d4 h5 b4 c5 g4 hxg4 a3 cxd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Rh6 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 h4 Kg6 c4 Kf5 f4 Ke4 f5 a5 f6 g5 e3 d5 c5 g2 h5 g3 b6 g4 h6 a4 b7 a3 h7 e6 b5 a2 b6 a1N c6 d3 c7 d4 Rh5 Nh6 Rh3 Ba3 Rh4 Bb2 Qe1 Nc6 b8B Na7 b7 Nf5 Rh3 Rg8 Ne2 g1R h8N g2 Rh7 g3 Rh3 Rh1 Nf4 g1Q Rh2 g2 Na3 Qf8 Be2 Qf1 Nc4 g1Q Nb6 Qgg7 Nfg6 Bd7 c8Q Bc6 Bd6 Qe8 b8N Bb7 Kd1 d2 Ba6 Qc4 Nc6 Kd3 Qd7 Qc8 Qe7 Qe8 Nb8 Bg2 e4 Nc6 Bc8 Ra2 Qg1 Na7 Nc6 Qd8 Ba6 Qa8 Bc8 Nh4 Qe1 Nf3 Qg1 Ne1 Qf1+ Kc3 Bb8 Nec2 Bd6 Qd5 Ke2 d1B+ Kf2 d3 Kg3 d2 Qa6 Bg4 Kf4 d1B Be3 Qd3 Bb8 Qc4 Bc5 Kd2 Bcd6 Kd3
1Nb4b/1QP2rbk/5bnN/pn1BRQqn/R2n1rb1/P7/3KR3/1N4Nn w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 d4 Kf7 h4 Kg6 c4 b5 f4 a5 h5+ Kh7 c6 g5 f5 e5 f6 g2 c5 e3 a3 e2 c7 e4 f7 g3 d5 b4 c6 b3 h6 g4 d6 b2 d7 Bg7 f8R Ra7 Rh2 Na6 Nd2 b1B Qc1 Qg5 d8N Ne7 Rh4 Ng6 Rf2 Rf8 Rh2 Rf4 Ngf3 g1B Nc4 g2 Nf7 g3 Kd2 e1N Rh4 Nc2 Bd3 Nd4 N7e5 Bh8 Qf1 e3+ Ke1 e2 Be4 Bh2 Bd5 g1B Ncd2 g2 Nd7 Bf5 Nb1 Bg4 Kd2 e1N Re2 Nd3 Nb8 Nf2 Ra2 Rb7 Re5 Nh1 Qd3 Bf2 Qf5 g1N Rc2 Nge2 Ng1 Neg3 Rb2 Bd7 c8Q Nh5 Ra2 Ra7 Qb7 Nc7 Rb2 Ncb5 c7 Ra6 Ra2 Rf6 Rb2 Rf7 Ra2 Kg8 h7+ Kg7 Rb2 Bc8 Ra2 Kh6 Rc2 Bg7 h8N Kh7 Ra2 Nc2 Rb2 Bd4 Ra2 Ba1 Rb2 Ncd4 Ra2 Rf8 Nf7 Bh8 Nh6 Rf7 Kd3 Bg3 Rae2 Be1 Ke3 Bb4 Kd3 Be7 Kd2 Bef6 Rh3 Ng7 Rhe3 Nh5 R3e4 Nc2 Ra4 Bfg7 Re6 Baf6 R6e5 Ncd4
1b2Nb2/1Q1K1bN1/R1r5/3PbnBr/2qbp2b/1Q1BP2n/qB1Q4/4r1Bk w - - 0 1 legal: proof: g4 f5 b4 d5 a4 h5 Ra3 h4 Rg3 fxg4 c4 b5 axb5 dxc4 Bb2 hxg3 Ba3 Nc6 Bc1 Nb8 h4 Kf7 f4 Kg6 d4 Kh5 Kd2 e5 Kc3 c5 d5 a5 f5 g5 b6 g2 f6 g3 b7 Kg4 f7 a4 b5 a3 h5 e4 h6 a2 h7 a1B+ Bb2 Na6 b8Q Qa5+ Kc2 c3 Kb3 c2 Kc4 c1B b6 Qa2+ Kb5 c4 Kc6 c3 b7 c2 Nc3 Nh6 Rh3 Nb4+ Kc7 Ra6 Kd8 Be6 Qe1 Nd3 Qd6 Rc6 b8B Nf2 Qa3 Nf5 Rh6 Nh3 Ba7 Bf4 Nb5 c1Q Qd2 Bb8 Nc7 Qcc4 Nf3 g1B Qb3 g2 Nd4 Bf2 Ne8 g1B Qb7 Kg3 Qb3+ Ne3 Nf5+ Kh2 Nfg7 g4 Bf6 g3 Bg5 g2 Bd4 Bfd6 f8Q Nf5 Qe7 Kh1 Qeb7 Bf7 Kd7 Bh4 Rg6 Bgh2 Bg1 Bd4 e3 Bhe5 Bd3 Bf8 Rd6 Rc5 Ra6 Rc6 Bh2 Rg8 h8B g1R Qdb2 Re1 Bg1 Bc3 Qd2 Bcd4 Ne6 Rg6 Bhf6 Rh6 N6g7 Beg3 Be5 Rh5 Bef6 Bda7 Ba1 Bd4 Bb2 Bge5
Q5R1/2r1kn1r/3b1q2/R2nNq1p/5bnP/R1N3b1/NNP4n/2BbbKQ1 w - - 0 1 legal: proof: e4 b5 d4 f5 f4 c5 a4 cxd4 axb5 g6 Be2 Bb7 Bg4 fxe4 f5 Ba6 f6 Bc8 Bf5 gxf5 g4 a5 h4 h5 b4 e5 f7+ Ke7 g5 d5 b6 e3 g6 d3 g7 a4 b5 a3 b7 f4 b6 d4 Bb2 a2 Nh3 d2+ Kf1 e2+ Kf2 e1B+ Kg2 d3 Rf1 f3+ Kg1 e4 Ng5 e3 Bc3 f2+ Kg2 e2 Nh7 Nh6 g8Q Nd7 b8N Ne5 b7 Nf3 Rg1 Ra7 Na6 Bg4 b8N Rc7 Nf6 Rh7 Ne4 f1N Nd7 Bg3 Be5 e1B Bb2 N1h2 Nec3 Bf4 Qc1 d1Q Na4 d2 Nb4 Qc8 Ne5 Qf5 Ba3 Beg3 Nb2 Qf1+ Kh1 d1N Nc3 Qa6 Kg2 Qaf6 Rf1 Be1 Qe3 Beg3 Qg1 Be1 Rf2 Bg3 Rd2 Bf4 Rd3 Ne3+ Kh1 Nd5 Kg2 Bg7 f8R Nf7 Ra8 Bf8 Ra5 Bfg3 Qh8 Bh6 Qa8 Bhf4 Rad1 a1B Re3 Nb6 Rd8 Nd5 Rb8 N3g5 Rh8 Bd1 Rg8 Ng4 Kf1 Nf3 Rd3 Be3 Nba2+ Bc5 Nba4 Bd6 Bc1 Bb2 Re3 Bba3 Rd3 Bac5 Nb2 Be3 Nb5 B3d2 Rda3 Bdf4 Nbc3 Nfh2+
1NK4n/4RnBr/2Q2bQ1/1Nnp1P2/n1r1qr1R/3P2Qn/1k2q1bQ/5r1N w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b7 Bh6 b5 Bg7 b6 Bf8 Bb5 cxb5 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 f4 e5 c4 h5 g4 a5 d3 d5+ Kg6 a4 Kf7 h3 g5 b4 g6 h4 c5 e3 g7 e2 c6 e1Q c7 h2 Qc2 b3 Qc6 a3 Qd6 e4 Bd2 h3 Qe7 e3 Qe6 e2 Bb4 b2 Nd2 b1N Qc6 a2 Nf1 Rh4 Bc5+ Kc3 Qe6 Ra4 Bd6 Nh6+ Kg6 Qe8+ Kf6 Be7+ Ke5 Rc4 g8Q Na6 b8Q Nc5 b7 Kb2 Nd2 Nc3 Ngf3 N3a4 Qg3 Nf7+ Kf5 Bg5 Nd4 Bf6 Nb5 Nh8 Bf8 Rg4 Rd1 a1R Bg7 Qf1 Rc1 e1N Ne4 Nf3 Nf2 Ng5 Re1 Ngf7 Re3 Bd7 c8Q Qe2 Qc6 Rf1 Qbd6 Rh4 b8N Bc8 Qed7 Rh7 Re7 Rh4 Q7e6 Bd7 Rg1 h1R Qdc7 Rh2 Nh1 Rhf2 Qh2 Rh7 Rg4 Rf3 Qg3 h2 Rh4 Bc3 Nf2 h1N Qe5 Bc8 Kf6 Qe4 Qf5 Bd4 Qfg6 Bh3 f5 Bg2 Qh2 Bc3 Qhg3 Rf4 Qh2 Ng3 Nh1 Ne2 Qhg3 Ng1 Qh2 Nd7+ Ke6 Qe2 Qe3 Be5 Qf2 Nh3 Qfg3 Bf6+ Qe3 Nfe5 Qeg3 Ndc5+ Kd6 Nef7+ Kc7 Nd8 Kc8 Qe4 Ra7 Qe2 Rc7 Q8e4 Re7 Ndf7
1n4Q1/P1q1q1B1/4Q1q1/pN1Kr3/k1NNB3/r3bq2/Pn2Qb2/2QbRb1b w - - 0 1 illegal: No possible last move, all moves rejected
1rB4N/k2q2R1/1q1Qp1P1/1RR2nn1/b5b1/b4b2/1BqqP2Q/KB2B1rq w - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 d4 cxd4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 Kd2 f5 h4 a5 c4 d5 Kc2 Kd7 Kb1 Kc7 b4 Kb7 c5 d3 g6 g3 c6+ Ka7 Qe1 d4 Ra4 g2 h5 d2 c7 d1Q h6 f3 h7 d3 Nh3 g1Q Qd2 f2 Ka2 f4 Kb1 f3 Bg2 f1Q Qa2 f2 Bf3 d2 Bb7 Nh6 Qe6 Qfe1 Qa2 f1B Qa3 Bg2 Be4 Nc6 b6+ Ka6 b7 Ne5 b8B Nf3 Ng5 Bg4 Rh5 e6 b5+ Kb6 Rc4 a4 Nf7 Ra6 Rd5 Ng5 Rd7 Nf5 Rc6+ Kb7 b6 B2f3 Qd3 Rg8 h8Q a3 Qh2 a2+ Kb2 Qa4 Nh8 d1B Rg7 Qd7 Ba7 Bb4 Qdd6 Qd2+ Bc2 Ra5 Rc4 Ka6 b7+ Qac6 b8R a1Q+ Kb3 Rc5 Rb5 Rb8 Bb2 Ba3 Rc3 Rc4 Bf2 Qac1 Ka2 Qh1 Bd3 Ba4 Bb1 Qb6 c8B+ Ka7 Ka1 Rc7 Rd3 Qcd1 Rdd5 Rc1 Rdc5 Q1c2 Bh4 Rf1 Be1 Rg1
1rb5/1nqrn3/1Q1b3b/q1RpN3/3P3Q/QR1Rb2B/1q3NPk/K2r1R1r w - - 0 1 illegal: No possible last move
2Q4r/nb2qr2/1Kr5/1RN3n1/pb1k2BB/Pn4P1/QqR1n3/QqBr3Q w - - 0 1 legal: proof: f4 d5 e4 dxe4 b4 h5 f5 c5 bxc5 h4 Nc3 h3 g3 g6 Nd5 gxf5 Ne3 f4 Ng2 hxg2 Kf2 Kd7 c4 Kc6 d4 f5 h4 a5 h5 b5 a3 e5 h6 b4 h7 f3 Ke3 b3 Qc2 b2 Be2 b1Q Bd3 f2 Qd1 f1N+ Ke2 f4 Rh2 a4 Bc2 e3 Kd3 e2 Nf3 e1Q Ng5 g1N Ne6 Qb2 Rb1 f3 Re2 f2 d5+ Kd7 d6 Kc6 d7 Nf6 Qd2 Qe7 d8B Ne4 Bd1 Ng5 Qc3 e4+ Kd4 e3 Rc2 Nd2 Bg4 Qa7 Bf6 f1R Bd8 e2 Bf6 Qa1 Rb5 Qe7 Qb2 Qb1 Qa1 Ra7 Qa2 Rc7 Qa1 N5h3 Bh4 Ng5 Qa2 Bb7 Qa1 Rg8 h8Q Rf7 Qh5 Rh8 Qh6 Kd7 c6+ Kd6 Qh7 Qf1 Nc5 e1R Qe4 Qh3 Qh1 Qh2 Qa2 Rd1 Qa1 Rd7 c7 Qhe2 c8Q Rc7 Qf5 Qg2 Qf2 Nb3+ Kc3 Ke5 Kb4+ Qb2 Qd2 Qf1 Qf2 Ne2 Qfh2 Nd2+ Ka5 Nb3+ Kb6 Nc6 Bh3 Nc3 Bf4+ Kd4 Na6 Qee1 c5 Na7 c6 Rd2 Q2g1+ Qe3 Bc8 Bb4 Qa2 Ne2 Bg4 Rcd7 c7 Qfc1 c8Q Rc7 Qd1 Qe7 Nc5 Qca1 Qdb1 Rd1 Qc1 Qc3 Qcb2 Qb1 Qba1 Qcb2 Bc1 Rc6+
1r3q1q/5Qrn/1B1rN2Q/bn1b1K1N/PNq1q2p/1R4B1/4nn1P/3Bk2N w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 g5 a4 gxf4 Na3 e5 Nb1 e4 Ra3 Qf6 Rc3 Qd8 Rf3 exf3 Kf2 Ke7 g4 Kf6 d4 Kg5 e4 c5 e5 b5 d6 f5 e6 h5 d5 h4 d7 b3 e7 c4 e8N b2 d6 b4 Bd2 b3 Qc1 c3 Bc4 c2 Qe1 c1N Qe7+ Nf6 Bc3 Ra7 Bd5 Nc6 Qe1 Bb7 Qe7 Nd3+ Kf1 f2 Ke2 f1N Kf3 Rh6 Bc4 Nf2 Bd5 Ng3 Na3 b1Q Qe3 b2 Ng7 Ne2 Be1 Nh7 Bb3 Qc2 Qd2 b1R Nh5 Qf6 d8N Qh8 d7 Bb4 Qe3 Rd6 Qe6 Qc4 Bd1 Ba5 Nc2 Ba8 Qe3 Rb8 Nb4 Rab7 Qe6 Na7 Qf7 Nb5 Ne6+ Kh6 d8B Qcd4 Qe8 Rg7+ Qc6 Kg6 g5 Qc4 Qe4 Bd5 Nh3 Qc2 Bb6 Qc6 Rg1 Qce8 Rg3 Qe7 Kg2 f3+ Kf1 Qef8 Qe3 f4 Qd2 Kf5 g6 Ke4 Qc1 Ra7 g7 Qf5 g8Q Rg7 Qf7 Qe5 Qc8 Qd4 Qcf8 Ke3 Bd8 Qe4 Bc7 Rg8 Qh6 Rg7 Bd8 Ng4 Bf2+ Kd2 Bfb6 f2 Bdc7 Ne5 Rf3 Ng4 Kg2 Ke1 Nhg5 Bb3 Kh3 Bd5 Rd3 f3 Rb3 Rd7 Bg3 Rd6 Nd8 Ne5 Nde6 Nd3 Bf4 f1Q+ Kg4 Qe5 Bg3+ f2 Qe8 Qd4+ Kf5 Qg2 Qf8 Qc4 Nh3 Qh1 Qf7 Qf3+ Bf4 f1Q Nf2 Qe3 Nh1 Nf2 Nc5 Qee8 Bg3 Qef8 Ne6 Qg2 Qg5 Qf3+ Qf4 Qe3 Qh6 Qee4#
r4B2/1RKB1qP1/bQn4r/2rr2n1/1Bn1pb1k/1Q3B2/Q2nP3/1qN3qN w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 d4 cxd4 g4 h6 f4 gxf4 g5 h5 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Kf2 e5 c4 Ke7 h4 a5 g6 Kf6 b6 d5 g7 d3 b7 f3 Ke3 a4 b5 d4+ Ke4 g3 b6 a3 c5 g2 c6 d2 c7 a2 h5 Kg5 h6 a1R h7 f5+ Kd3 e4+ Kc4 d3 Kb5 f2 Qc2 f4 Ba3 d1R Nc3 f3 Na2 d2 Qb3 Bd6 Nc1 Nf6 Bb4 Qe7 Nh3+ Kh4 Rg1 Nc6 b8B Qe6 b7 R1a5+ Kb6 Bf4 Ba7 Rc5 b8Q Ba6 c8B Qd5 Bd7 Qf7 Rh1 g1Q Bg2 f1N Nf2+ Kg3 Qd6 Ne3 Kc7 Nc4 Rh5 Qg6 Rg5+ Kh4 Nh1 f2 Bf3 f1N Re5 Qf7 Re7 Rhg8 h8Q+ Nh7 Bb6 Rge8 Qg8 Ng5 Ba7 Red8 Qa2 Re1 Bb6 d1Q B6a5 Qc2 Ba3 Nfd2 B5b4 Qb1 Qb3 Qh5 Qd5 Qf7 Qa2 N4e5 Qdb3 Rh8 Qd4 Rh6 Qde3 Rd5 Qb6 Rd1 Re8 Rc5 Rb8 Nf1 Rb7 Rdd5 Qa1 Nd2 Qaa2 Rc3 Bf8 Rcc5 Bb4 Nec4+
N5bB/6Nr/1bBK1k1N/1pq2qnn/3P1r1b/1Pr5/Nq1Q1R2/r1b3BQ w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 b3 hxg4 Nc3 a5 Rb1 a4 Rb2 a3 Na4 axb2 Nc3 Rh5 a4 Rh8 Kf2 Ke7 e4 b1Q h4 b5 h5 c5 e5 g5 a5 f5 d3 f3 Ke3 f2 a6 f4+ Ke4 f3 h6 c4 a7 g3 e6 g4 Ke5 g2 h7 g3 Na4 c3 Bh6 c2 Rh4 c1B Qe2 Nc6+ Kf5 Nd4+ Ke5 Qb2 Bf4 Be3 Rh1 Qd7 Rh2 Nf6 Qd1 Nh5 Nh3 g1B Bg2 f1Q Nc3 f2 Ng5 Bh6 Nf7 Bg5 Bf3 g2 Nh6 Bh4 Qc1 Rb8 a8N Rb7 Bg3 Rc7 Na2 Rc3 Bf4 Bd2 Be3 Qe2 Qb1 f1R Be4 Rf4 d6+ Kd8 Kd5 Nf3 e7+ Ke8 Qd1 Ng5 Qa1 Bgf2 Qh1 g1R Ke5 Rd1 Bc6 Ra1 Kd5 Bc1 Ke5 Rg8 h8B Rg7 Rg2 Rh7 Kd5 Bfg3 Bg1 Bf2 Rh2 Bb6 Rf2 Qe1 Ng4 Kf7 e8N Qe3 Ng7 Qee2 Nh6+ Kf6 Ngf5+ Kg6 Ng7 Qh3 d7 Qf5+ Kd6 Qf1 d8Q Be6 Qe7 Bg8 d4 Qc4 Qe3 Kf6 Qd2 Qcc5+
R1R5/4nq1n/1BQ1R1Q1/2p1b3/2nrBn1q/2b3rb/2Pk1PR1/1b1q1BKN w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 e5 d4 Nc3 f6 Nd5 fxe5 Ne3 dxe3 Qe2 e4 Qh5+ Kd7 Qd1 Ke8 b4 Kd7 d4 Ke6 g4 Kd5 g5 a5 b6 h5 b7 e5 g6 c5 b5 h3 b6 h4 g7 a4 Rh2 a3 Qd3 e2 Rb1 a2 Bf4 a1B Rb4 Qf6 Rb5 Ne7 g8B+ Qf7 Bg2 Nd7 b8R Bg7 b7 Nb6 Bh1 Bc3+ Bd2 Nc4 Bf3 Ra4 Rg2 h2 Rg3 h1B Rb3 h3 Ra3 h2 Bg2 Bh3 Bh7 Rg8 Bf1 Bf6 Rf3 Rg3 Rh8 B1g2 b8R h1Q Rb7 Be6 Rb6 Qh4 Rb7 Bgh3 Re3 Nb6 Rbb8 Rg2 Rbg8 Ba1 Bc1 Rb4 Qd2 Kc4 d5 Ra4 Qd3+ Kb4 d6 Ba2 d7 Bb1 Qd5 Rg5 Kd2 e1N Ba6 Nd3 Ke2 Rg2 Qc6 Bb2 Rf3 e3 Kf1 e4 d8Q Nf4 Ne2 Ba1 Ng3 e2+ Ke1 Bfb2 Nh1 Rg5 Qd3 Bg7 Kd2 e1N Re3 Nf3+ Kd1 Bad4 Bb2 Bdf6 Be5 Rg6 Bb8 Ng5 Ke1 Bb2 Re2 e3 Bc7 Bgf6 Ra2 Rg7 Qde4+ Kc3 Bb5 Rc4 Raa8 Rd4 Bd3 Nc4 Bb6 Ba1 Bg6 Nh7 Bf5 Ng2+ Kf1 Nf4+ Qg2 Rg4 Re1 e2+ Kg1 Kd2 Rg7 Bc3 Rhc8 Rg6 Rgg8 Rh6 Qge4 Bh8 Rg2 Rg6 Qee6 Rg3 Qg6 Rf3 Rc1 e1Q+ Bf1 Qe2 Re1 Qd1 Re6 Rg3 Be4 Be5
1nQNQ2b/1q1p3r/NR1q2P1/nRQ2qq1/2n5/1RKPb3/2b3n1/k1B3Rr w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c6 b6 Bh6 b5 Qf6 b7 Bg7 e3 Bf8 b6 Qd8 Bb5 cxb5 c4 Ke7 g4 Kf6 e4 Ke5 g5 Kd4 c5 h5 e5 f5 c6 a5 c7 h3 g6 b4 e6 b3 e7 f3 e8Q f2+ Ke2 f1N Qf7 a4 Rh2 b2 Na3 b1Q Ke1 h4 Qh7 f4 Qe2 f3 Qh6 f2+ Kd1 Qf5 Ra2 Bc5 Ra1 Qdg5 Qeh5 Ne3+ Ke2 f1N Ke1 Nc4 Re2 h2 Rf2 h1Q Re2 h3 Kd1 h2 Qf8 Rh7 Re1 Qc6 Rb1 h1Q Qe8 Qd6 Rb5 Ne7 Nh3 Nec6 Nf4 N6a5 Ne6+ Kd3 Nc2 a3 Nd8 a2 Nb4+ Kd4 Nd3 a1B Nb4 Nfe3+ Ke2 Ra6 Rg1 Ng2 d3 Kc3 Kd1 Be3 Ke2 Ra8 Na6 Kc2 Rb3 Bb2 Rb5 Kb1 Kd1 Ka1 Kc2 Bh8 Rb3 Nbc6 b8R Bb7 c8Q Ra7 Nb4 Ba6 b7 Bb5 Na6 Ra8 Qh6 Ba4 Qhf8 Qdd5 Qfe7 Qh2 Qb4 Qhd6 Qc5 Ra7 Ra8 Qdf3 b8R Rc7 Rb4 Nb8 Rb6 Qb7 Ra7 Ne5 Kc3 Nec4+ Qd4 Rc5 R3b5 Re5 Qdc5 Bc2 Rb3 Qbf3 Rc7 Qb7 R6b5 Rh1 Rc6 Rh7 Rcb6 Ree7+ Qd4 Rh1 Qe5 Rg7 Qec5 Rgh7+
1QQrNNq1/8/1Q1p3b/nB3bRr/5BrP/1n1b2K1/k2Pq2n/1b2Q1nB w - - 0 1 illegal: No possible last move
1N3b1q/1pR3n1/1Qq4k/QQ1bP2b/rqRb3R/1P1n4/2Kr1qnB/1B2Q3 w - - 0 1 illegal: No possible last move, all moves rejected
1nB1bb2/n4R1B/1N3R1Q/3r1PKn/1b2n1p1/1QBnB1b1/2nR2P1/2r2q1k w - - 0 1 illegal: No proof kernel
1Q2K2N/3nr3/2Rb2bQ/Pb1Rp3/2N2b2/1nn1PR2/n2qNb2/kBbr2N1 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 a4 Kf7 h4 Kf6 d4 b5 Kd2 g5 Kd3 c5 Ke4 c4 f4 c3 d6 b3 Kd5 c2 d7 c1B f5 b2 a5 g2 h5 g3 h6 b4 h7 g4 Nf3 g1N Na3 b1N Nc4 g2 Qd3 b3 Qc3 g3 Nd6 b2 Nb7 Ra7 Nd6 Ba6 Nf7 Nh6 Qc8 Bb5 Rh3 Nc3+ Kc5 b1B e3 e5+ Nd6 Nge2 d5 Na2 Ng1 Nec3 Bd3 Kg5 f6 Nf5 f7 Nd4 Qc7 Nb3+ Kb6 Kf6 Nc4 Bd6 f8Q+ Kg5 Qh6+ Kg4 Bf1 Bg6 Bd3 Rf8 h8N Rf1 Bb1 Rd1 Ne2 Kf3 Ng1+ Kf2 Qh4 Ke1 Qh6 Qf8 d8N Qf2 Nc6 Qd2 Qd8 Rh7 Nd4 Rf7 Nde2 Nd7+ Kb7 Qc2 Kc8 Qd3 Nb6 Kd2 Qc7 Qc2 Kd8 Qb2 Ke8 Qc2 Nf3+ Kd3 Qb7 g1B Qb8 g2 Nc4 Bh2 Nfg1 Bf4 Rf3 Bc5 Nh3 g1B d6 Bf2 Nhg1 Nb4 Ba2 Qd2 Rb1 Kc2 Ra1 Nb6+ d7 Bd6 Rb1 Nc6 d8R Nd7 Ra1 Nb4 Rc8 Nf8+ Rc6 Nd7 Nb6 Kb2 Bb1 B4g3 Ra4 Nba2 Rd4 Bf4 Rd5 Ka1 Nc4 Re7+
2qq1Rr1/B7/nq1BNp2/b3QPrK/B2rbp2/2n1B2P/3QbNk1/n6N w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 hxg4 d4 cxd4 f4 e5 f5 Qe7 Ra3 Qf6 Rf3 Qd8 Rf4 exf4 Kf2 Ke7 c4 Kd6 e4 Ke5 c5 a5 h3 g5 b6 d5 c6 g3+ Kf3 d3 Kg4 d4 c7 d2 b5 g2 b7 a4 b6 a3 Qc2 d1R Qa4 f6 Nc3 d3 Nge2 g1Q+ Ng3 d2 Qc6 a2 Qe8+ Ne7 Bb5 a1N Ba4 Qc5 Re1 Na6 b8B Bb7 Ba7 Rg8 Kh5 g4 Nh1 g3 c8Q g2 Qcd7 g1Q Qd3 Bc6 b7 Rg4 Re3 Qcb6 b8B+ Qbc7 Re2 Qb6 Qc2 Kd4 e5 Qcc8 e6 Be4 Bd6 Nd5 e7 Rb8 Rg2 Ke3 Qb5 Kf3 e8N Ra8 Nc7 Be7 Ne6 Bf8 Bdb8 Bb4 Bd6 Ba5 Re2 Rb8 Re3+ Kg2 Qcd3 Re1 Nd1 Nc3 Ndf2 d1B Qe5 Be2 Qd2 Rd1 Rd3 Rb7 Rd4 Rbg7 Rc4 R7g6 Rc7 Rg8 Rf7 Re1 Rf8 Rd1 Qdd4 Rd3 Be3 Rd1 Qdd5 Rd2 Qa2 Rd4 Qd2 R4g5+
R5Nn/1qk5/4b3/n2r1P1R/1pBbQ1qn/4p1b1/r2RPBqB/rBK4Q w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 Nc3 f6 Ne4 fxg5 Ng3 hxg3 Qc2 g4 Qa4+ Bd7 Qd1 Bc8 h4 Kd7 a4 b5 d4 e5 Kd2 g5 f4 c5 h5 b3 d6 g2 f5 g3 a5 c4 d5 g4 h6 b2 a6 b1Q h7 c3+ Ke3 c2 Kd2 e4 a7 Nc6 Rh5 Nh6 Nh3 g1N Bg2 Na5 Nf4 Nf7 Ng6 Qh4 Ne7 b4 Bb2 c1R Ng8 Bg7 Ra4 Bd4 Qc2 Re1 Bh1 g2 Qc6+ Kd8 d7 g3 Ra1 Bf2 Bd4 Qg4 Qe6 Kc7 d8R Rf1 Qe8 Be6 d6+ Kb7 d7 Kc7 Ra2 Qb3 Be3 Ra1 Ra4 Ra2+ Kc1 Nf3 Ra3 Be1 Bf2 Qd5 Rd3 g1Q Rd2 g2 Qe7 Rc8 a8B Qb7 Re8 Nh4 d8B+ Kc6 Bdb6 Rd8 Bc7 Rd5 Bh2 Qf1 Rb8 g1B Bf3 Qfg2 Rd8 e3 Be4 Kb6 Bb1 Ra1 Rd1 Bc3 Rd2 Bd4 Re8 Qa6 Bc6 Qb7 Bb5 Ra2 Bc4 Kc6 Be1 Bf2 Ra8 Bg3 Bf2 Kb6 Qe8 Kc7 Qe7+ Bd7 Qe4 Be6 Nh6 Rhd8 h8Q R8d6 Ng8 Ra6 Qh6 Nh8 Qf8 Ra1 Qe8 Qb6 Qa4 Qb7 Qd1 Nc6 Qe1 R6a2 Qh1 Na5
3NqrR1/PqNn1b2/Rn1b1r2/1n3p2/3q4/2NpRP2/3QK1Bk/2b1RQ1r w - - 0 1 illegal: No possible last move, all moves rejected
1n6/Rb2q2R/N1N1n1pQ/1PrqNB1K/3qr3/5QP1/1npR1b2/kb1Nr3 w - - 0 1 illegal: No possible last move, all moves rejected
1b3brK/R2qB1Bp/3N3Q/Nbnk4/2qPn1p1/r4B2/3Q3P/1nrqNN2 w - - 0 1 illegal: No possible last move
Q4nN1/q2prbrP/1r3b2/1QNPn3/5kB1/R1p4b/Q2K2Rb/2n2NQb w - - 0 1 legal: proof: f4 a5 g4 b5 c4 bxc4 b4 e5 b5 exf4 Ba3 h5 Bb4 axb4 gxh5 Bc5 Bg2 Bd6 Bf1 Bf8 e4 Ke7 a4 Ke6 h4 Ke5 b6 c5 h6 f5 h5 g5 d3 c3 h7 f3 d4+ Kf4 e5 f2+ Ke2 b3 b7 g4 a5 g3 h6 g2 a6 c2 a7 c1N+ Kd2 b2 e6 Qc7 e7 Bg7 e8Q Ne7 Qg8 Ng6 Qe2 Bf6 Nf3 g1B Ne5 Bh2 Bh3 f1B Ra4 Nf8 Ra1 Nc6 b8Q Bb7 Bg4 Bh3 Ra3 c4 Qg6 Rg8 h8N Rg7 h7 Bg2 Rd1 Bd5 Rg1 Bf7 Rg2 Qb6 Qd8 Rc8 a8Q Qa7 Qb6 Re8 Qb5 Re7 Qf2+ Ke4 Nd3 Ne5 Qg5 f4 Ng6 f3 Qg1 f2 Nc5+ Kd5 Qe3 f1B Qeb3 Kd6 Qa2 Bf3 Nc3 b1R d5 Rb4 Nb1 Rb3 Rf2 Bh3 Re2 Bh1 Rg2 Re8 Ne7 Rb4 Qa4 Rb6 Ng8 Re7 Q4b3 Ned3 Qb5 Ke5 Kd1 Kf4 Nd2 Ne5 Nf1 Qa5 Kc2 Qa7 Kd2 c3+
3Q1bKN/1Q3n1B/2q1rR2/1Qpn2Bb/Pnrn2Q1/1n2r1B1/2P1R2p/3k1b2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 d5 f5 Nc3 e6 dxe6 Nc6 e5 Nb8 Ne4 fxe4 Ke2 Ke7 Ke3 h5 Kf4 b5 Kf5 c5 Kg6 d5 a4 d4 g4 h3 f4 e3 f5 d3 g5 b3 Qg4 d2 Ba3 d1B Bd3 b2 Rh2 b1N Bc4 b4 Bd5 h4 Rh1 e2 Qf4 e1R Ne2 h2 Qe3 b3 Bg2 h3 Bc1 b2 Nf4 Qd7 Rf1 h1N Qb3 h2 Be4 Rh4 Qb7 Nh6 Kh7 Nc6 g6 Nd4 g7 Bh5 g8Q Ra6 Qg4 Nf7 Kg8 Nd2 Ra3 b1N Re3 Rd6 Re2 Nc3 Bd3 Nf2 f6+ Ke8 e7 Qc6 Ng6 Nd5 Be4 Re6 Nh8 Nd3 Bh7 N2b3 Bg5 N3b4 Rf4 Bd7 Rf3 Qc7 Rf1 Bb5 Rf3 Kd7 Rff2 Nd6 f7 Bc4 Rf6 Bb5 Qc8+ Kc6 e8Q+ Kb6 Qb7+ Ka5 Qd8 Qb6 Rg2 Re3 Rd2 Bf1 Re2 Bh6 f8B Nf7 Be7 Bf8 Bf4 Qc7 Bg3 Qb6 Rf5 Qc7 Bg5 Qb6 Rf6 Qc7 Qdb8 Qc6 Qd8+ Qb6 Qbc8 Nf5 Qcc7 Nc6 Rg2 Nc1 B3f4 Kb4 Rd2 Kc3 Qd1 Re8 Bg3 Rc4 Qg4 Qa6 Re2 Qa8 Re1 Kd2 Re2+ Kd1 Qa7 Qc8 Qb7 Qc7 Qd7 Nfd4 e6 Qd6 e7 Ncb3 Qb5 Ncb4 Qdb7 Ra8 e8Q Ra6 Qeb8 Qd7 Qe8 Rae6 Qd8 Qc6
3k1Nq1/Q2q3N/8/NnRb3P/R3brrp/KBb1n2P/2pN1nQ1/2Qb3b w - - 0 1 illegal: No proof kernel
1q1nR2n/1Q2p1R1/BKnp1k1r/r2P1b1Q/8/b6Q/nq1P4/Bq1Q1NnR w - - 0 1 illegal: No proof kernel
n1Rrb1RN/1q4Qp/1bp1q1N1/2PqQqR1/4N3/k4K1P/B3Rb2/2rnq3 w - - 1 2 illegal: No possible last move, all moves rejected
1nQQ2n1/1KBp1QNq/1r1rB1q1/2N2b1B/P7/1rp1b1q1/k1PRrr2/6B1 w - - 0 1 illegal: No possible last move, all moves rejected
2RK1N2/2P3r1/n1qqb1RQ/k5N1/np1npnrb/RPQq1N2/3n4/3R1B2 w - - 0 1 legal: proof: e4 g5 d4 f5 exf5 a5 h4 gxh4 d5 a4 b3 a3 Bb2 axb2 d6 cxd6 Nc3 d5 Nb1 d4 Kd2 b5 Kd3 d5 f4 Kd7 c4 Kc7 g4 Kb6 a4 h5 c5+ Ka5 c6 e5 g5 b4 g6 h3 g7 h2 f6 h4 f7 h3 f5 Be6 f6 Qd6 c7 Be7 f8N Rh7 f7 Bh4 Nd2 b1N Ng6 Ne7 g8R Nf5 f8Q Rg7 Ra3 Na6 Ne4 Nd2 Kc2 d3+ Kb2 d4 Qc1 Re8 Nf3 Rd8 Rg1 h1Q Neg5 h2 Qc3 Qg2 Qf6 h1N Nf8 Nhg3 Qh6 Nh5 Rh1 Nf4 Rg1 Rf7 Rg6 Rg7 Rh1 Nb1+ Kc1 d2+ Kb2 Rdd7 Kc2 Rg8 Rg1 Rdg7 Rh1 Ng3 Rg1 Nge2 Rh1 d1N Rg1 Nh5 Kd3 Nb2+ Ke4 d3 Rh1 d2 Rg1 Bf7 Kf5 Nhf4 Rh1 Qd3+ Kf6 d1Q Ke7 Nd4 Kd8 Be6 Rg1 Nd2 Rh1 Kb6 a5+ Kb5 Rg1 Na4 Rh1 e4 Rg1 Qh2 Rh1 Qc1 Rg1 N6c5 a6 Ka5 a7 Na6 a8R Qcc2 Qa1 Qc6 Qc3 Qh3 Rc8 Qf5 Be2 Qe5 Rd1 Qec5 Bf1 Qe5 Rf6 Qec5 Nh7 Rg4 Nhg5 Rg7 Rg6 Q5d6+
2kbq3/q1r1Qb1N/1P3B2/Kp4rp/1Q2n3/B2B1N1P/1q1qQ2Q/q3rR1n w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 Ra4 fxg4 Ra2 Ba6 Ra1 Bc8 b4 c6 b6 Qd5 b5 Qd7 b7 Qd8 b6 Qd7 Ra5 Qd8 Rb5 cxb5 d4 Kd7 Kd2 a5 Kc3 g5 f4 e5 d5 h5 h3 g3 d6 g2 f5 e3 f6 g4 f7 g3 Qd3 a4 Kb4 a3 c4 e4 c5 e2 Qc3 e1Q Bh6 e3 Qd2 e2 Qc3 a2 Nf3 a1Q Qd2 g1Q Nd4 g2 Be3 Qgf2 Ne6 g1Q Bd4 Rh7 Ng5 Nh6 Bf6 Be7 f8B Qe8 c6+ Kd8 Qc3 Ng4 Nd2 Be6 Ndf3 Qa7 c7+ Kd7 Qd2 Na6+ Ka5 Bd8 b8Q Bf7 Qb4 Qd2 B8e7 e1R Bd3 Rg7 Nh7 Rg5 Bf8 Qfg2 B8e7 Qd4 Rf1 Nf2 Bf8 Nh1 B8e7 Ke6 d7 Q2b2 c8Q Nc5+ Qa6 Qgd2 Qh2 Ne4 Bd6 Rc8 Bc5 Be7 d8Q Rc7 Qe2 Q4c3 Qb8 Kd7 Bd6 Qb7 Qaa7 Bd8 Bde7 Rc6 Qg3 Kc8 Qgh2 Qd4 Bc5 Qb8 Qe7 Rc7 Qc3 Qe5 Ba3 Qa1 Qcb4 Qeb2 Qef2 Qb7 Qe2 Qa7+
1K2q1Qr/2BN2B1/2pR2pQ/n3q1r1/2B1n1Pr/1N2n3/1rP1b2Q/rk1b3B w - - 0 2 legal: proof: e4 d5 f4 e5 b4 a5 Qg4 axb4 Qd1 Bd6 Bc4 dxe4 Bf1 e3 Ba6 e4 Bf1 Be5 fxe5 Be6 Qe2 Bh3 Qd1 Bc8 g4 h5 a4 h4 Ra2 Na6 Rb2 Nb8 Rb3 Ne7 Rc3 Ng8 Rc5 Qf6 Rc6 Qd8 Rf6 Nh6 Rf3 Ng8 Rg3 hxg3 Ke2 Ke7 d4 Ke6 h4 Kd5 a5 Kc4 e6 b5 e7 f5 e8B g2 h5 f4 a6 f3+ Ke1+ e2 Kd2 b3 Ke3 b2 Kf4 f2 Ke5 b4 h6 e3 d5 b3 d6 g6 d7 Nf6 h7 Ne4 a7 Nc6+ Ke6 Bb7 Qd2 Na5 Nf3 g1R Bg2 e1Q Nc3 b1R Nd5 f1B Nd4 e2 Qh6 b2 Nf6 Kc3 Nb3 Ra1 Bf7 b1R Bd2+ Kb2 Bc3+ Ka2 Rh5 c6 Rd5 Rb2 Bh1 Kb1 Rd6 Ba6 Be5 Rb8 a8Q Rb5 Bg8 Qf8 d8B Qg7 Bc3 Rg5 Nd7 Qd4 Ke7 Qe5+ Be6 Rg3 Bc7 Rh3 Qg8 Rh4 Kd8 Bg2 Bd4 Bf3 Bc4 Bb5 Kc8 Qe8+ Bd8 Qc3 Bf6 e1N Bg7 Qce5 Kc7 Ng2 Kb8 Q8e7 Bc7 Bd1 Qc8 Qe8 Qd8 Rf8 h8Q Ne3 Q8h7 Rh8 Qg8 Qf7 Qdf8 Qfe7 Qf2 Q7e6 Qh2 Ba6 Bd5 Bae2 Bc4 Qe8+
q2r4/4PB2/QK2bB2/4pq2/q1bnRNQq/1r2PQbB/1nq1p1N1/Bk6 w - - 0 1 illegal: No proof kernel
2q1N3/1BQ2Bn1/1pNK1N1Q/4B1r1/1PqNpb2/br2n1R1/3P1bb1/n3bk2 w - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 h5 e4 f5 g4 fxe4 a3 hxg4 Ra2 a4 Rb2 Rh6 Rb3 axb3 a4 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 Kf4 h4 g5 f3 Kg3 a5 Kf2 d6 e5 a6 b2 h5 e3 a7 g3 f4 g4 f5 g2 f6 g3 f7 e2 h6 e1B h7 b6+ Kd5 c5 d7 c4 Na3 b1N Qg4 c3 Qd1 e4 Nc4 c2 Rh6 Nc3+ Ke6 Nd5 Qg4 Bd6 f8Q+ Bf4 Bb2 c1B Rh3 Ngf6 Qg6 Rg8 h8N Nc6 Qc5+ Ne3 Nd6 Na5 Qh6 Rg5 Be5 Nb3 Bc4 Ba3 Qc7 Nh5 Nhf7 Na1 Ne2 g1Q Ne8 g2 Nfd6 Qf1 Nf6 g1B Nde8 Ng7+ Kd6 Kg2 Be6 Bgf2 Nd4 Qc4 Rg3+ Kf1 Bd5 Ba6 Bf7 Qc8 d8N Bb5 Rf3 Bd7 Rg3 Bh3 N8c6 Bg2 Rf3 Rb8 a8B Rb7 Rg3 Ra7 Bb7 Ra5 Ne6 Rd5+ Ke7 Rd3 Ned4 Rc3 Kd6 Rb3
1Q2N1q1/1bp2qRn/4pBn1/k1KNQ2Q/4rr2/P3PQ2/2B3qb/bN2qq2 w - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 hxg4 b4 f5 a3 a5 Ra2 axb4 Rc2 f4 Rc3 Ra4 Rb3 Ra8 Rg3 fxg3 d4 Kd7 Kd2 b5 Ke3 g5 h4 b3 f4 b4 d6 Kc6 d7 Kb6 f5 g2 f6 b2 d5 g3 Kd4 b3 e3 e6 d6 g4 h5 Bb7 h6 Nc6+ Kc4 Nce7 h7 Bg7 f7 Ra4+ Kd3 Ng6 f8Q Nf6 Ne2 g1Q Nec3 g2 Nd5+ Ka5 Qf3 g3 Qf7 Qf8 d8Q Rc4 d7 Rf4 Qb8 Qe7 Qfe8 Qf7 d8N Re4 Rh4 Rf8 h8Q Nh7 Rg4 Qf2 Be2 g1B Bd1 g2 Bc2 Bh2 Rg3 Bc3 Qe5 g1Q Rg2 Bd4 Kc4 Qd2 Rg3 Qdg2 Bd2+ Bc3+ Kc5 Q1f1 Rg4 Qg8 Be1 Rff4 Bh4 Qe1 Bf6 Qf7 Nd2 b1Q Rg5 Qa2 Nb1 b2 Qh8 Qg8 Nf7 Qgf1 Nd6 Qf7 Nd2 b1Q Ne8 Ba1 Rg3 Qbb3 Nb1 Qa4 Qeh5 Qg8 Qe5 Qd7 Rg5 Qdf7 Rg1 Nhf8 Qhh5 Nh7 Rg4 Nh4 Rg7 Ng6 Ba4 Qae2 Bc2 Qeg2
b2B2k1/3rQ3/qr2p1nB/1Nn3BP/2pq3K/1Qb1nN2/B3PN1R/4qq1q w - - 0 1 legal: proof: g4 f5 b4 d5 a4 h5 Ra3 h4 Rg3 fxg4 c4 b5 axb5 dxc4 Bb2 hxg3 Ba3 Nc6 Bc1 Nb8 d4 Kf7 h4 c5 f4 a5 f5 g5 d5 c3 d6 c2 d7 c4 f6 e6 h5 a4 b6 a3 b5 a2 b7 a1Q b6 g2 Kf2 g3+ Kf3 g4+ Kf4 Ra6 Kg5 Nh6 Bd2 c1Q Na3 Rh7 Kh4 Nf5+ Kg5 Bg7 Nf3 g1Q Rh2 g2 Qb3 g3 Nb5 Ne3 Kh4 Qe1 Qb4 Bh8 Qe7+ Kg8 Bc1 Qf8 d8B Nd7 b8Q Qh1 b7 g1Q Bh3 Nc5 Bf5 Rb6 Bb1 Qa6 Ba2 g2+ Qg3+ Qg7 b8N Bb7 Nc6 Ba8 Nb4 Qgf1 Nd3 g1N Nf2 Nh3 Qb8 Qgg1 Bd2 Nf4 f7+ Kg7 f8B+ Kg8 Bh6 Bc3 Qbd6 Qg7 Qd3 Qd4 Qb1 Rg7 Qb3 Rf7 Qd6 Rfb7 Qe7 Rd7 Qc2 Nf5+ Kg5 Nfd3 Bf4 Ne3 Kh4 Qf6+ Bfg5 Nf4 Qd1 Qd4 Qb3 Ng6+
N3B3/K3k3/NN1pb3/3qbQp1/1r1B4/Nr1bPbB1/b2P1q1Q/n1R3rn w - - 0 1 legal: proof: g4 e5 b4 h5 f4 hxg4 a4 exf4 a5 c5 Ra4 b6 axb6 Rh6 b5 Rh8 Rb4 cxb4 Kf2 a5 c4 f5 h4 g5 h5 f3 Ke3 f4+ Kd4 g3 h6 f2 h7 b3 b7 f3 b6 a4 e3 b2 c5 g2 c6 a3 c7 a2 Be2 a1Q Ba6 f1B Nh3 g1R Qb3 f2 Na3 b1B+ Qb2 Ke7 Kc5 Bfd3 Qa2 f1B Qc2 Nc6 b8N Nd4 b7 Bg7 Kb6 Nf6 Bb5 Nb3 Bb2 Bg2 Na6 Ne4 b8B Ba2 Bd4 Ng3 Nf4 Qf1 Ne6 Na1 Qb1 Re8 h8Q Be5 Qh2 Qf2 Qf1 Bf3 Qfh3 Rg2 Rc1 Nh1 Qf5 Rg1 Bc6 Bb7 Bb5 Bbd5 Bc6 Rh8 Kb7 Rh4 c8N+ Ke8 Bd6 Rb8+ Ka7 Rb3 Nb6 B5c4 Bb8 Ke7 Nec7 Be6 Nca8 Rf4 Nbc4 Qa5 Ncb6 Qd5 Bb5 Bf6 Bbe5 d6 Be8 Re4 Bg3 Be5 Bc5 Ra4 Bd4 Rab4
R3R3/q3q1nQ/5p1B/B1kq1PQR/P4nb1/1q2rbBB/2N4p/K3br1r w - - 0 1 legal: proof: d4 a5 c4 e5 h4 g5 b4 gxh4 c5 axb4 Nd2 d6 Ndf3 Qd7 cxd6 Qe7 d5 Qd8 Nd4 exd4 Kd2 Kd7 Kc2 c5 Kb1 b5 g4 h5 a4 h3 e4 f6 f4 d3 e5 c4 g5 h4 g6 h2 g7 c3 Ra3 c2+ Ka2 h3 Ne2 d2 Rb3 Qe7 Rb1 b3+ Ka1 b4 Nd4 b2+ Ka2 b3+ Ka3 Na6 Qf3 d1Q Nb5 Nc5 Qg3 Ne6 Nd4 Nh6 g8Q Nf5 Qh7 Nfg7 Qg5 Qh5 Be3 c1Q Nc2 Ra6 Bg2 Qg1 Rd1 b1B Kb2 Qhf7 Bd2 Qa7 Ka1 Rc6 Be3 Rc3 Rd4 Bb7 f5 Nf4 Bc1 Re3 Rc4 Ba6 Rc8 Be2 Ra8 Bg4 Bf1 Qee6 Bg2 Be7 Bf1 Bd8 Bg2 Ba5 Bd2 Rd8 Bf1 Qee7 e6+ Ke8 Bc1 Be1 d7+ Kf8 d6 Ba2 Rg1 h1R Rg2 Rc8 d8B h2 Bc7 Re8 d7 Rf3 Be2 Rff1 d8B Qg8 Bd6 Bb1 Ba5 Qf7 Nd4 Be4 Nc2 Bef3 Rg3 Qg8 Rh3 Qf7 Rh5 b2+ Ka2 Rd8 Bb8 Rd3 Bcd2 Re3 Bc4 Qec7 e7+ Ke8 Kb1 Kd7 e8R Kc6 Bc1 Kc5 Bd5 Be2 Bg2 Bef3 Bh3 Qfe7 Ka2 Qc6 Be5 Nd3 Bg3 b1Q+ Ka3 Qbb8 Ka2 Qb3+ Ka1 Qcd5 Qh4 Re6 Bh6 Re3 Qg5 Nf4
2N4q/r3Q1PQ/rnN1p3/nbbpP1B1/q3bnB1/4k2K/R3r1r1/3QN2Q w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 d4 cxd4 g4 h6 f4 gxf4 g5 h5 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Kf2 f5 Kg2 Kf7 c4 Kg6 e4 d5 h4 a5 c5 f3+ Kh2 g3+ Kh3 a4 b6 d3 b5 d2 e5 f2 c6 g2 b7 a3 c7 a2 b6 a1N Ba3 f4+ Qg4 d1Q Nf3 g1R Nbd2 Rg2 Bc1 Ra6 Ne1 f3 Nb3 Nf6 Na5 Nh5 Rh2 Qa4 Nc6 Bf5 c8N e6 Be2 Nd7 b8Q f1B b7 f2 Qa7 Be4 b8Q Nb6 Qbb7 Bc5 Qe7 Rh7 Bf4 Qe8 Qf3 Kf5 g6 Nb3 g7 Qh8 Bg5+ Kg6 Qd3 Kf5 Qd1 Na5 Bf3 Bb5 Bg4+ Kg6 Qac7 f1R Qcd8 Rf7 Qg8 Rg1 Ra2 Rg2 Bf3 Kf5 Be2 Ng3 h5 Rh6 Bf3 Ne2 Qh7+ Rg6 h6 Rf2 Bf6 Kf4 Bg4 Ke3 Bh4 Rgf6 Bg5+ R6f4 Qf8 Rfa7 Qe7 Rg2 Qf5 Qd8 h7 Qe8 h8Q Qf8 Bf6 Rff2 Qfh5 Qe8 Q8h7 Qh8 Bg5+ Nf4+ Kh4 Rc2 Q5h6 Rgf2 Kg3 Rb2 Qh1 Rbe2 Bf6 Ng6 Kh3 Rg2 Bg5+ Nf4+
4Qr2/PR1p1r2/kN1P1qRN/1nqK4/6b1/N4pN1/1R1bBr1q/1Qn3bb w - - 0 1 legal: proof: f4 a5 g4 c5 b4 cxb4 f5 h5 gxh5 b3 Ba3 b2 Bb4 axb4 f6 exf6 Nf3 f5 Ng1 f4 Kf2 f5 Kf3 g5 e4 b5 h4 b3 c4 b4 a4 g4+ Ke2 g3 Kf3 g2 d4 Bb7 c5 Rh7 a5 Qf6 d5 Kd8 e5 Kc8 h6 Nc6 d6 Nd4+ Kf2 f3 Ke3 f2 e6 Ne2 h5 Nc1 a6 Rf7 a7 Ne7 h7 Nc6 h8R f4+ Ke4 Nd4+ c6 Nb5 Be2 f1R e7 Rf2 Na3 b1B+ Kd5 b2 h6 b3 h7 Bf5 Rb1 Bg4 Rg8 Rb8 Rg6 Bh6 h8N Ra8 Ra1 b1Q Ra2 Qc2 Rb2 Qcc3 Rh3 Qg3 Qc2 Qh2 Qb1 Rb8 Rd3 Ra8 Rd4 Rb8 Rb4 Ra8 Nf3 g1B Ng5 Rb8 Ne4 Ra8 Rd2 b2 Ng3 Bg5 Qd3 b1Q Rdb2 Qc2 R4b3 Ba6 c7 Kb7 e8Q f3 c8N Bd2 Nb6 Qc5+ Ke4 Rd8 Qb1 Rc8 Qe5 Rcf8 Qe8 Nc7 Rb4 Bc4 R4b3 Nb5 Rb4 Ka6 R4b3 Rg7 Nf7 Rh7 Nh6 Rhf7 Bd1 Bf1 Be2 Bg2 Rb4 Qcc3 Kd5 Qc8 Rc4 Bh1 Rc7 Be3 Rb7 Bd2 Qd8 Qcc3 Qe8 Qc5+
4qBk1/qbp3n1/1nP4b/Q2K2R1/Q2R2rq/Pp1q3N/1Q4rN/N1n2bN1 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 h3 Bg2 hxg2 Bg5 fxg6 Be3 g5 Bc1 g4 Kd2 Kf7 Ke3 b5 Kd4 g5 e4 d5 h4 b3 f4 g3 c4 b4 e6+ Kg7 e5 g4 f5 b2 c5 b3 e7 Ra5 e8Q Bb7 e6 Rh5 e7 Nd7 Na3 b1Q Nc2 Nh6 a3 Nb6 f6+ Kg8 Qe1 Rg5 Qa4 Qe8 h5 Nf5+ Ke5 d4 h6 d3 Rh4 Ra8 Qea5 d2 c6 d1B Bb2 Be2 h7+ Kf7 h8Q Bf1 Bc3 Bh6 Bb4 Ng7+ Ke4 Rg6 Ra2 Qd1 Na1 Qd3+ Ke5 Rb8 Rh5 Rd8 Rg5 Rd4 Rf2 Rc4 Rf4 Rc2 Rd4 Rc4 Ne2 g1Q Bd6 Qh1 Ng1 g2 Bb4 Qg8 e8N g3 Be7 Qh4 Bf8 Na8 Kd5 Rc2 Rh5 Rg4 Rg5 Rf2 Qh7 Re2 Qf5 Qh8 Qe5 Rf2 Qe2 Kg8 Qb2 Nb6+ Ke5 Kh7 f7 Qg8 Nf6+ Kh8 Be7 Qe8 f8N Rd2 Ne6 Rc2 Nh3 g1Q Nef4 g2 Ne2 Qgf2 Neg1 Rd2 Nh5 Kg8 Ng3 Rc2 Nf3 g1N Ne2 Rd2 Nh2 Rc2 Nef4 Ne2 Ng1 Nc1 Nfh3 Qa8 Bc5 Qf7 Bb4 Rcg2 Bf8 Qa7 Nf4 Na8 Nfh3 Qe8+ Kd5 Nb6+
Qb1BqQ1N/5n1k/3QP3/2prr1Rq/2P1qrrn/1K6/bp6/2RR1NRn w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 h3 Bg2 hxg2 Bg5 fxg6 Be3 g5 Bc1 g4 Kd2 Kf7 h4 Kg6 f4 c5 c4 d5 Kc2 b5 a4 b3+ Kc3 b2 e4 b4+ Kc2 b3+ Kc3 g3 f5+ Kh7 a5 g5 e6 g4 f6 d4+ Kd2 d3 Kc3 d2 a6 Ne7 f7 Nd7 e5 Nf5 h5 Qe8 a7 Nh4 h6 Bd6 f8Q Bb8 Qf2 Rf8 e7 Rf4 Ne2 g1Q Qde1 d1R Nd2 b1Q Nf1 g2 Qd2 b2 Qd6 g3 Kb3 Qh2 Rg1 Qe4 Be3 Qh1 Rc1 Rd5 Bd2 Qh3 Ba5 Qg4 Bd8 Qgh5 Rh1 g1R e6 g2 Qf3 Ne5 Qf2 Rf5 Nf4 Nf7 Ng6 Rfe5 Nh8 Bb7 Rd1 Ng5 Qf8 Nf7 Nh2 Rf1 Rg1 Rf4 Rc1 Rg4 Rgd1 g1N Nf1 Qc6 e8R Nh3 Re7 Nf2 Rc7 Qe8 Rd7 Bc7 Re7 Rc8 a8Q Bb8 Rd7 Bc6 Ra7 Nh1 Raa1 Ng3 Rc3 Rf4 Rac1 Nh1 Rg3 Rc7 Rg5 Rd7 Rg1 Rd4 Qc7 R7d5 Qcd6 Ba4+ Ka2 Rd2 Ng6 Bc2 Ka3 Bb1 Kb3 Qg2 Qfe7 Kg8 h7+ Kg7 h8R Qe4 Rg8+ Kh7 Nh8 Rg2 Rg5 Rgg4 Qf8 Ba2+
4q1k1/B2P2b1/1QN1bb2/rpRBB1q1/1Pp1K3/n1RbR3/6nR/rnQ1r3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 f5 a4 Nc3 e6 Nb5 exf5 c4 d5 cxd5 f4 Nd4 Bf5 Nb3 axb3 Bg2 Bd7 Bf1 Bc8 Kf2 c5 e4 g5 a4 f5 h4 Kf7 d4 b5 d6 g3+ Kf3 g2 a5 c4 d5 b2 e5 b1N d7 Nh6 h5 Nc6 d6 Qe8 d8R Ng4 h6 Be6 d7 Bg7 a6 Kg8 a7 Ne3 Ne2 g1B Ra3 Ng2 Rc8 Bd4 Rh2 Ba1 Be3 g4+ Kf2 f3 Qc1 f4 Nd4 Rh7 Rc3 Bf6 Bd3 Re7 Be4 Bg7 Bd5 g3+ Kf1 f2 Ke2 f1B+ Kf3 Bf6 Ke4 f3 Bg1 f2 h7+ Kf7 h8B Kg8 Bg7 Be2 Rc7 f1R Rc8 Na3 Bh8 Na5 Rc5 Nb3 Nc6 Bb2 Qc2 Ra1 Qc1 Nh4 Bf2 g2 Bd4 g1Q Bf2 Rc8 a8Q Qg5 Qa6 Ng2 Qb6 Ra8 Bd4 Ra5 Bg1 Bf7 e6 Bg7 Rch3 Bbf6 Rc3 Nb1 Bf2 Nd4 Be3 Nc2 Bf2 Qf8 Bd4 Re8 e7 Be6 Be5 Nca3 Bb8 Rc8 e8R Rd8 Re7 Re8 Ba7 Bd3+ Kf3 Bf7 Re1 Be6 Re3 Bf1 Ke4 Re7 Qc7 Qe8 Qb6 Bd3+ Kf3 Bh6 Nd8 Bf7 Nc6 Be5 Re2 Bf8 Bf6 Bg7 Re4 Bf4 Bd4 Bfe5 Re2 Bef6 Re1 Re2 Be5 Rea2 Re3 Re2 Qd2 Re1 Qc1 Bf1 Ke4 Be6 Qb2 Be2 Qc1 Bd3+
4N1R1/1B1r1rBk/1b1R2nP/n1q1p1K1/bp4bR/QP1Qrn1r/8/2Qq2R1 w - - 0 1 legal: proof: g4 d5 e4 h5 c4 hxg4 cxd5 a5 b3 f5 Na3 fxe4 Nc4 a4 Nb2 a3 Qf3 axb2 Qe2 Ra7 Qd1 Ra8 Ke2 Kf7 Ke3 Kg6 Kf4 b1B h4 b5 d4 c5 a4 g3 h5+ Kh7 f3 g2 a5 e3 d6 c4 d7 e2 d5 e1R a6 b4 a7 c3 d6 c2 Bb2 c1R Nh3 g1Q Bg2 Bf5 Kg5 Bg4 f4 Nc6 f5 Re3 f6 Na5 f7 Rc7 Nf2 g6 Bf6 e5 Qc1 Ne7 Rh4 Ba6 Bb7 Bb5 Ne4 Ba4 Bg7 Rb8 Bc6 Rbb7 a8Q Qd1 Qa7 Qc8 d8R Rd7 Qa6 Ra7 Bb7 Qc5 Qd3 Nd5 Re8 Nf4 Re6 Be7+ Rf6 Bd8 f8Q Rf7 d7 Bb6 d8R Rd7 Qe8 Rf7 Rfd6 Rd7 Kf6 g5 Qe7 Ng6 Rg8 Be2 Qe8 g4 Kg5 g3 Qa8 g2 Rb1 g1N h6 Bg4 Re6 Rf7 Nd6 Rff3 Ne8 Rh3 Bf3 Rc7 Rd6 Rd7 Bb7 Rf7 Qc8 Rd7 Qa3 Nf3+ Kf6 Qdc2 Rg1 Qd1 Qc7 Qd4 Qcc4 Qc5 Qcc1 Nh2 Rf8 Rg8 Kg5 Rf7 Nc7 Rh8 Ra8 Rd8 Rb8 Rdd7 Rg8 Rf2 Ne8 Rf6 Qd4 Rff7 Qd3 Nf3+
5Q1r/n4r1Q/KB5P/2n1q1rp/4bB1b/1pqRB1bP/1kBq3N/1N2q2N w - - 0 1 illegal: No proof kernel
4b2n/rrN1Rq1R/2k1pr2/1b3QpN/B1NR4/r5PQ/1bP4n/N1qqK3 w - - 0 1 illegal: No possible last move, all moves rejected
3Q3R/p2bQ3/1R5R/1P2B3/3Nr1pq/4rR1q/nk2bbPN/rqnbQ1K1 w - - 0 1 illegal: No proof kernel
r2Qn2B/1b1R1pqR/n4NN1/1Qq2Pp1/3P1q1N/r2R4/R1r2kn1/2qKb3 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 h5 d4 d5 g4 hxg4 e3 dxc4 Be2 e4 Bd3 exd3 b4 Ke7 h4 Ke6 f4 Kf5 b6 Ke4 h5 c5 b5 a5 f5 c3 b7 g3 b6 a4 h6 g2 h7 d2+ Ke2 c4 Qb3 d1N Nf3 g1Q Qb5 a3 Nh4 c2 Ra2 Na6 b8Q c3 b7 Qc7 Rh3 Bc5 Ng6 Bb4 Rf3 Qc5 Nd2+ Kd5 Rh3 Nf6 Nf3 Ke4 Nfh4 Ne8 Bd2 Rg8 h8R c1Q Rh7 c2 Be1 Rf8 Bg3 Be1 Be5 Qg5 Qd6 Qh6 b8N Bb7 Qd8 Rg8 Nd7 Rf8 Nf4 g5 Bh8 Qg7 Nfg6 Rc8 Rb2 a2 Rg3 a1R Ra2 Rb1 Rf3 Rb3 Rg3 Ra3 Rh3 Kd5 e4+ Kd6 e5+ Kd5 e6 Ke4 e7 Ne3 Rg3 Ng2 Rd3 Qf4 Rd2 c1Q Rd3 Q1c3 Kd1 Qb2 Rd2 Ke3 Rd3+ Kf2 Nf6 Nec7 e8R Rg8 Ree3 Ne8 Re6 Qe7 Ne5 Nd6 Neg6 Rc2 Qc7 Ra8 Qd8 Ne8 Rd6 Qc7 Rd5 Qc5 Rd7 Qbc1#
4Q1rn/1N2bR2/1rB2p1p/2N2n2/BB3P2/2n1PQr1/K3B2q/b1knqN1b w - - 0 1 legal: proof: d4 b5 b4 c5 h4 cxd4 a3 g5 Ra2 gxh4 a4 e5 Ra3 e4 Rd3 exd3 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 Ke7 c4 Ke6 f4 Kf5 g4+ Ke4 b6 d5 c5 a5 g5 h3 g6 a4 b5 h2 b7 a3 b6 h6 c6 a2 g7 a1B c7 f6 e3 Nc6 b8Q Ne5 b7 Ng6 Nf3 N8e7 g8B Ra6 Bf7 Rg8 Nh4 Nh8 Ba3 Nf5 Kc1 Be7 Be8 Rb6 Rg1 h1Q Be2 Qh2 Rg7 d2+ Kc2 Qd7 Bb4 d3+ Kb3 d4 Ka2 Qb5 Bd7 Qa5+ Ba4 Bd7 c8B Bc6 Qf1 d1N Rf7 d2 Bd7 d3 Qe8 Rg3 b8N Nc3+ Kb3 d1R Na6 d2 Nc5+ Kd5 Qh3 Rdg1 Ka3 d1N Nd2 Rg8 Nf1 R1g3 Qg2+ Kd6 Qf2 Bh1 Bdb5 Kd5 Qf3+ Ne4 Bd2 Qc3+ Ka2 Qc1 Bb4 Qc3 Nd3 Qe1 Bc6+ Kc4 Bd6 Nd4 Nc5+ Kb4 Nf5 Kc3 Ng7 Nf5 Nb7 Ng6 Ne6 Nh8 Bab5 Kc2 Ba4+ Kc1 Bb4 R8g6 Nec5 Rg8 Ka3 Nec3 Kb3 Nd5 Ka2 N5c3+
2B2rR1/2n3Q1/nb2p1Q1/br3b2/K1N1PB2/B2nP1Bk/Q3rp2/1q2qN1n w - - 0 1 illegal: No proof kernel
kBNN3Q/1bpKr2n/1q1Q3b/2P4q/3n4/pR1r1R2/2R2nP1/b1Q2qRb w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 e5 d4 Ke2 d3+ Ke3 f6 Be2 fxe5 Ke4 dxe2 Ke3 Bd7 Kd3 e4+ Kc3 Bc8 Kb4 Kd7 Kc5 e1N d4 a5 c4 h5 b4 a4 f4 h3 d5 e5+ d6 a3 f5 h4 b6 e3 b7 h2 f6 e4 b5 h3 f7 e2 b6 e3 Nc3 Rh6 Nf3 Re6 Rg1 h1Q Ne4 h2 Ra2 Nc6 b8R Re7 b7 Nf6 Nd4 Nh7 Rc2 Bh6 Ne6 Nd4 f8R Nd3+ Kd5 e1B Rf3 e2 Be3 Bh4 Qc1 e1Q Bf2 Qf8 Nd8 Qf1 Be3 Qf6 Bf2 Nb5 Ba7 Nf2 c5 Bg3 Qb2 Be5 Qc1 Ke8 Kc6 Ba1 Nd2 Qb2 Nc4 Qb1 Nb6 Nd4+ Kd5 Bh3 Nc8 Kd7 Ne6 Bg4 Ke5 Kc6 d7 Bf5 d8Q Qb6 Qh8 Be4 Qd8 Kb5 Qd7+ Ka6 Qd6 Rg7 Nd8 Rg3 Rf5 Rd3 Rf3 Qe2 Rd1 Qhf1 Re1 h1B Rd1 Nb5+ Ke6 Nd4+ Kd7 Bd5 Re1 Qe5 Rd1 Qh5 Re1 Qe2 Rg1 Qf1 Qe6 Be4 Qd6 Qc6+ Ke7 Qe5+ Ne6 Qh5 Nb6 Qb5 Kd8 Nc6+ Kd7 Qb2 Rbf8 Re8 b8Q Qb1 R8f4 Bd5 Rb4 Nd4 Qd8 Kb7 Bb8 Qb2 Nc8+ Ka8 Qf6 Bb7 Qh8 Qb3 Nd8 Qb1 Rb5 Qb4 Rb6 Qa5 Rb4 Qb6 Rb3 Re7+
2bBq3/1p2RBNr/n1R1q3/1PB3p1/b6P/rkBQrn1K/1q1q3b/Q1Q5 w - - 0 1 illegal: No possible last move, all moves rejected
1Qq3r1/1RP1rN2/n1q4N/Np1QR1N1/2n1r1b1/kPn1BK2/bbp5/2r4R w - - 0 1 illegal: No proof kernel
r4QBr/R4Rqr/4K1N1/2B4B/pp4Q1/bbq1n1PR/1Pb2n2/1nkB2b1 w - - 0 1 illegal: No proof kernel
3Rb3/p2np1Q1/knR1Q2K/Pn2qr1Q/2r2b1B/r4P1B/q6Q/1bbN3B w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Nc3 f6 Nce2 fxg5 Ng3 hxg3 Qf3 g4 Qe2 Kd7 Qd1 Ke8 Ke2 Kd7 Ke3 Kc7 Kf4 b5 Kg5 Kb7 a4 g2 c4 b4 d4 b3 h4 g3 h5 b2 d5 b1B c6+ Ka6 c7 e3 h6 e2 d6 e1Q d7 Nf6 a5 Nd5 h7 Nb6 Kh5 g5 Nh3 g1R Bg2 g4 c5 Bh6 c6 Qe5+ Bg5 Qg8 d8Q Qa2 Qg8 N8d7 Qg7 Rg8 Bd5 g2 h8Q g3 Qf3 Rc1 Rd1 g1B Qh1 g2 Qh2 Bb7 c8B Rc3 c7 Ra3 Rc1 Rb8 Rc6 Ra8 Qhh7 Rb8 Qf5 Ra8 Bh4 Bf4 Qfg5 Bc1 Kh6 Rb8 Qhf4 Bh2 Qh5 g1N Bh1 Ne2 f3 Nd4 Nf2 Nb5 Nd1 Ra8 Qf6 Rg5 Qg7 Rb8 Qd2 Bf4 Qh2 Nf6 Bh3 Nd7 c8Q Ra8 Qch8 Rc8 Qhg8 Rc7 Qe6 Ba8 Rc3 Rc4 Rd3 Be4 Rd6 Bg6 Rc6 Bbc2 Rb1 Be8 Rb3 Bb1 Rd3 Nb8 Rd8 Nd7 Qhf7 Rd4 Qfg6 Rc4 Qh5 Rf5+
3r1n2/b3rRbN/p1BQB1b1/1Q1K1Pr1/P1pb2QB/1q3q2/2R2n2/1knB4 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 Na3 gxh4 bxc5 d5 c6 Nf6 c5 Ng8 Nc4 dxc4 Ke2 Kf7 Ke3 Kf6 a4 Kf5 d4 e5 f4 b5 g3 h5 c7 a6 c6 h3 d5 h4 d6 b4 d7 b3 Qe1 b2 Bd3 b1N Qe2 h2 Ra2 h3 Rc2 Nc3 Qd1 Rh7 Qe2 Re7 Qf2 Ne2 Bb2 Nf6 Nf3 Bg7 Rhc1 h1R Rb1 h2 Qe1 Rg1 Qa5 h1Q Ng5 Nc1 Be2 Ng4+ Kd2 e3+ Kc3 Bb7 c8Q Qf3 c7 Nf2 Qb5 Be4 Bd1 e2+ Kb4 e1B+ Kc5 Rg2 Nh7 Bc3 Ra1 Qg8 d8Q+ Nd7+ Kd6 Bd3 g4+ Ke4 g5 Nf8 g6 Rg5 Qg4 Bd4 c8B Ke3 Rb1 e4 Bd7 Rb8 Qdb6 Rd8 Bc3 Qf7 Be1 Qf5 Q6c5 Qe5+ Kc6 Qb8 Qd6 Ba7 Rb3 Bgd4 Be6 Bg7 Bd5 Kd4 Rb1 e3 Rbb2 e2 Rb1 Ne4 Bh4 e1B Rb3 Bc3 f5 Be2 Rb4 Kd3 Rb3 Bgd4 g7 Nf2 g8B Bg7 Rbb2 Bce5 Be6 Bed4 Qa5 Qb3 Qb5 Qg3 Bg2 Qh3 Kd5 Qh1 Qf4 Bh5 Qg4 Bg6 Qbd7 Qa2 Rb7 Qb3 Qb5 Ree8 Rf7 Re7 Rb2 Kc3 Be4 Qf3 Rd2 Nh1 Rg2 Nf2 Rh2 Kb2 Rg2 Ka1 Rh2 Nfd3 Rc2 Nf2 Kc6 Bb8 B4d5 Bc3 Kc5 Kb1 Bc6 Bb2 Qe4 Ba7+ Kd5 Qf4 Qe2 Bbd4 Qg4 Qf3+
QNrQ4/NQRKN3/r1R5/p2QP1kr/1b2b1Bp/P5q1/1rnb3n/2qq4 w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 g5 h4 gxh4 d4 e5 Nc3 exd4 Be3 f4 Nb1 fxe3 Ke2 Ke7 Kd3 Kf6 Kc4 h5 Kd5 a5 c4 b5 g4 h3 f4 d3 a3 d2 e5+ Kg6 g5 h4 c6 h2 c7 d6 c5 b4 c6 e2 Bh3 e1B Ne2 b3 Nbc3 b2 Nd4 b1R Ncb5 Rb2 Na7 Bb7 Ke6 d5 c8N Rh5 c7 Nc6 Rc1 Nb4 Ndc6 d4 Bg4 d3 Nb8 Be4 Rc6 Nc2 Qf3 Qf6+ Kd7 d1R Rf1 h1Q f5+ Kf7 Qg2 d2 Ne7 Qg7 c8Q Rc1 f6 Nh6 Qb7 d1Q+ Qd2 Qg6 Rf3 Qf1 Rfc3 Qc4 Qd6 Bd2 Qdc7 Qcf1 Qd8 Qg1 Rc7 Qg7 R3c6 Qe3 Nd5 Kg6+ f7+ Bd6 Qb6 Qg3 Qb7 Qf6 f8Q Qff1 Nf6 B6b4 Nd5+ Kh7 Ne7 Qh1 Nb5 Ra6 Na7 Qhf1 Qf3 Kg7 g6 Qc4 Bh3 Ng4 Qf7+ Kh6 g7+ Kg5 Qd5 Nh2 Bg4 Qcc3 g8Q+ Bg6 Rb6 Nf3 Rc8 Nh2 Nbc6 Ne3 Qdc7 Rb3 Qa8 Rb2 Qgd8 Bb1 Qcb7 Be4 Nb8 Qcc2 Rd6 Qb1 Rf6 Rc3 Rh6 Nc2 Rc5 Qbc1 Re6 Rc6 Rc4 Rc8 Rc7 Rc6 Rd6 Rb6 Rdc6 Ra6
Q2n4/r2r2P1/bb1qbk1B/p1Qq4/4Q2b/P1nq1nRK/3RNpNN/7Q w - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 bxc5 gxf4 g5 h6 Be2 h5 Bg4 hxg4 Kf1 e5 Kg2 Ke7 d4 a5 h4 b5 c4 f5 d5 e3 g6 e4 d6+ Kf6 g7 b4 d7 f3+ Kh2 g3+ Kh3 g2 a3 f4 c6 e2 c7 e1Q h5 e3 h6 e2 c5 f2 c6 f1B h7 b3 Kg4 f3 Kh3 b2 Ra2 Qd2 Nc3 e1N Qe2 b1Q Qe4 Ra7 Nce2 Qd6 Bh6 Be7 Rd2 Qbd3 Rh2 Ba6 c8Q Q6d5 c7 Nc6 Qb8 Qf8 c8Q Nd8 Qa8 Bc4 Ng3 Ba2 N1e2 g1B+ Rg2 Bb6 Qc5 f2 Qb7 Nf3 Qa8 Nc6 d8Q Rd7 Qe8 Nd8 Qh5 Ra7 Kg4 Bc4 Qh1 Ba6 Rg1 Bg2 Nf1 Bh3+ Kg3 Be6 Rg2 Qe8 Nh2 Qec6 Qg4 Qcd6+ Kh3 Kf7 Rg3 Bh4 Qf5+ Nf6 Qg4 Re8 h8N+ Ke7 Qf5 Ne4 Qg4 Rd7 Ng6+ Kf6 Ngf4 Ree7 Ng2 Ra7 Qb8 Nc3 Qa8 Bf7 Qa4 Red7 Qe4 Be6+
2k4b/P3Kp1R/q1b2NQ1/RQ3b1N/1Rb2PQ1/3r1r1Q/2qrnnqp/5B2 w - - 0 1 legal: proof: d4 a5 c4 e5 h4 d5 b4 g5 Bb2 gxh4 cxd5 axb4 d6 Qg5 d5 Qd8 Bd4 exd4 Kd2 Kd7 Kd3 b5 Ke4 c5 Ke5 h5 e4 d3 a4 d2 f4 b3 g4 b4 g5 c4 a5 h3 g6 h4 a6 c3 a7 c2 g7 c1Q Qc2 d1R Qc5 h2 Qc4 b2 Qb3 h3 Ra5 Qd2 Na3 b1B Nc2 Ba6 Ne3 Nh6 g8Q Kc8 Ne2 Qb6 Kf6 Nc6 e5 Nd4 e6 Bc4 e7 Bf5 Ng3 Qg2 Ng4 Rd3 Qg6 Qa6 Nh5 Ne2 Qc3 b3 e8Q+ Kb7 Qe6 b2 d7 b1Q d8Q Bg7+ Ke7 Qc2 Ngf6 Ng4 d6 Nf2 Qe8 Rd8 d7 Rh6 Qg4 Bh8 Qb3+ Kc7 Qeg8 Rg6 Qb5 Rg5 Qg6 Rd2 Qf3 Rg3 Qfg4 Rf3 Qe3 Rb8 d8R Rc8 Rg8 Rcd8 Rg7 Kc8 Rh7 R8d3 Rg1 Bd7 Qee6 h1B Qef5 h2 Qh3 Qg5 Qfg4 Bf5 Rg2 Ra3 Rg1 Rfd3 Rg3 Bc6 Re3 Rac3 Re4 Rf3 Rd4 Rcd3 Re4 Bb3 Rb4 Bc4 Qgh4 Qg1 Q4g4 Qg2
1Bnrn3/1R1N1P1B/3Q1r1k/2Q2ppq/2bRBq1Q/6bq/K4PQr/n4q2 w - - 0 1 illegal: No proof kernel
3NK3/2pQ1q1k/2rbBQ1q/1Q1N2qR/1RP3bp/Prn3N1/r5n1/1q2n1N1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 f6 d5 Kf7 d6 Ke6 Bd2 Kd5 Bf4+ Kc6 dxe7 Ra3 e6 Ra8 Be5 fxe5 Kd2 Kd6 Kd3 b5 e8N+ Ke7 Ke4 d5+ Kf5 h5 Kg6 b3 f4 d4 c4 h3 g4 b2 g5 b4 f5 h2 Be2 b3 Qc1 d3 Ng7 d2 Qe1 d1Q Nc3 b1Q Qf2 b2 Qb6 e4 Nf3 e3 Qc6 Nd7 Ne4 Qg1 Ng3 Nb6 Qb5 Nf6 a3 Nbd5 Bf1 e2 Bh3 e1N Bg4 Qg2 Ng1 Ne4 Bh3 Ra6 f6+ Kd6 Kf7 Ke5 g6 Bd6 e7 Nc3 e8N Bg4 Ne6 Rc6 g7 Rh6 g8Q Rg6 N3e2 Kf5 Qg7 Qg3 Ra2 Qe5 Qh7 Nf4 Qg7 Nfg2 Qh7 Qa8 Nd8 Qa5 Ng3+ Kg5 Ra1 Rg8 Qf5+ Kh6 Qd7 Kh7 Ra2 Rg5 Ra1 Rf5 Ra2 Rf2 Ra1 Bd1 Be6 Bg4 Ra2 Qc2 Ra1 b1R Ra2 Qc1 Rb2 Qh6 Rb4 Ra2 Qb7 Qd4 Qb5 Bf4 Ke7 Rb3 f7 Be5 f8Q Bd6+ Kf7 Qe5 Qfe7 Qeg5 Qf8 Qb6 Qfe7 Qd4 Qf6 Qde5 Ng7 Qd4 N7f5 Qe5 Ne7 h4 Ke8 Qgg7 Nd5 Qeg5 N1e2 Na4 Rf1 h1Q Rf5 Nc3 Re5 Qf1 Ng1 Qd3 Rf5 Qb1 Re5 Qf4 Rh5 Qe5 Nh3 Qg5 Ng1 Qf7+
b4b2/p1Qn4/1qpQ1KN1/Q3R1Rr/2R3NR/bPPq1k1q/q3n3/Br1n4 w - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 d5 Nf3 dxe4 Bd3 f5 Be2 g3 Ng1 g2 Bg4 fxg4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 g3 f4 c6 d4 e3 h4 Ke4 h5 e2 f5 e1B h6 e5+ f6 Bb7 b6 Bc5 h7 Nh6 d5 Ng4 d6 Ne3 d7 Beb4 c3 Ba3 Nh3 g1N Nf4 g2 Rh5 g6 Qa4+ Kf3 Qa5 Qc8 d8Q e4 f7 Qh3 f8Q Nd7 Qff6 Rb8 Qc7 Ba8 b7 Bf8 Ra2 Nd1 Qfd6 e3 Nd2+ Kg3 Ne4+ Kf3 Nf6 e2 N6d5 e1Q Ne3 Qe2 Ra1 Nf2 Ra2 Qd2 Ra1 Ne2 Rb1 Ne5 Kf6 g1Q Rf5 g5 Ng6+ Kg3 Rf4 g4 Rc4 Qgd1 Ra1 Kf3 Rb1 Rc8 b8R g3 Rb5 g2 Rbc5 g1Q Rd5 Ned3 Re5 Rb8 Ra1 Nc5 Rg5 Ng3 Ng4 Qb3 Rb1 Qd3 Ra1 Qa2 Rb1 Re8 b3 Re1 Bb2 Rd1 Ba1 Nd7+ Kf7 Rc1 Rb2 Rd1 Re2 Rb1 Ree5 Nd1 Ke6 Ne2 Kf7 Rg8 h8R Qb6 Rh4 Rh8 Ke6 Rh5 Kf7 Nc5 Kf6 Nd7+
1Q1nrRN1/bb4rk/4nnpP/bQpB4/1N1R4/1R2r2b/2P1q3/K2NNq2 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Bg2 exd4 Bd2 g3 Bg5 f6 Bh3 fxg5 Bf1 g4 Kd2 Kf7 Kc1 Kg6 f4 d5 h4 a5 e4 g2 b4 d3 Kb2 d2 h5+ Kh7 f5 g3 e5 a4 f6 d4 f7 a3+ Ka2 d3 e6 Nf6 h6 Qe8 e7 Bb7 b6 Nc6 b5 Nd8 Qe2 d1B Rh3 d2 Nf3 g1R Ne1 g2 Rb3 g6 Qe5 Rg8 Bc4 Bg4 Nc3 d1Q Bd5 Bh3 Qh5 Qd3 Rd1 Qf1 Rd4 Rg7 Ka1 a2 Nd1 Rh1 Qe2 g1B Qc4 Rh2 Qb4 Re2 Qa5 Qc6 e8N Bb4 f8R Re3 Qa6 Qcc4 Qa4 Ba6 b7 Qce2 b8N Bb7 b6 Ba5 Qb5 c6 Na6 Rb8 Kb2 a1N Nb4 Bf2 Nd6 Rc8 Nf5 Rb8 Ne7 Bg1 Ra3 Nb3 Ng8 Nc5 Rb3 Nce6 Kb1 c5 Kb2 Bh2 Ka1 Ra8 Nc3 Bb8 Nd1 Ba6 b7 Ba7 b8Q Bb7 Qe5 Nf7 Qf4 Re8 Qb8 Nfd8
1rQN1Q2/p1b2P1b/1kq2BR1/2p1qQ1B/P7/1K3br1/n2qrn2/RBq4B w - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 c5 bxc5 g5 Qg4 gxh4 Qf3 Na6 Qd1 Nb8 c4 d6 c6 Bh3 c7 Be6 c5 Bc8 c6 Bg7 Nc3 Bh6 Na4 Bf8 Nc5 dxc5 g4 e5 d4 h5 Kd2 b5 Kc2 e3 a4 h3 f4 e2 g5 e1Q d5 b4 d6 h2 g6 h4 f5 h3 g7 e4 f6 b3+ Kb2 e3 Bd3 e2 Bb5 Bf5 c8B Nh6 g8B Bh7 c7+ Nc6 Rb1 Ng4 Bf5 Nf2 c8Q Rb8 Bd5 Rg8 Qc2 Rg3 Bg5 Qc3+ Ka3 e1R Ra1 Re2 Nf3 Qe5 Rhg1 h1B Nd4 h2 Ne6 b2+ Ka2 Bf3 Kb3 h1Q d7+ Kf7 Bg4 Bd6 Qf5 Nb4 Bd3 Bc7 Bb1 Na2+ Bb7 Qh6 Rg2 Qe8 d8Q Qc6 Qd6 Qh2 Nd8+ Ke8 Rg1 Qee4 Qdf4 Qe5 Rg2 Qh6 Bh4 Qg5 f7+ Ke7 Bh5 Kd6 Qb4 Qd2 Bf6 Rh3 Rg6 Rg3 Qc3 Kd5 Bd3 b1Q+ Qb2 Qbc1 Bb1 Qd4 Qd2 Kd6 Qh6 Qdd2 Qh3 Ba5 Qcf5 Kc7 Qf8 Kb6 Qc8 Re1 Qhf5 Re4 Ba6 Re1 Bf1 Re4 Bg2 Re2 Bh1 Ng4 Qf4 Nf2 Nb7 Ka6 Qfg4 Bc7 Qgf5 Kb6 Nd8 Qf1 Qce6 Qfe1 Qc8 Qec1
1n4qR/k7/P1Q3r1/p5q1/1r2pQBb/1nr2NBn/P2RQ1Q1/KB1bq1r1 w - - 0 1 illegal: No proof kernel
2N3r1/B3p1nr/1Q2PBb1/pB2b3/n2QR1r1/r1B3qk/Pqq5/1R1bK1R1 w - - 1 2 legal: proof: c4 c5 b4 f5 g4 fxg4 Nh3 h5 Ng1 d5 bxc5 dxc4 Nc3 h4 Ne4 Qd5 Ng3 hxg3 Rb1 Qd3 Ra1 Qd8 f4 Kf7 d4 Kf6 e4 b5 h4 g5 f5 g2 h5 g3 d5 b4 d6 c3 d7 b3 c6 c2 c7 b2 h6 b1B h7 g4 Qd5 Nh6 Kd2 Kg5 e5 Bg7 f6 Na6 f7 Nf5 f8B Nc5 Qe4 Na4 Ne2 g1R Nc3 g2 Qd4 g3 Qb6 Kg4 Bb5 a5 Ba3 c1Q+ Ke2 Bf6 Bc5 Ng7 Nd5 Bg6 Rb1 Rd1 Re1 Kh3 Rg1 Rd3 e6 Bb7 c8R Qb2+ Ke1 Ra3 Bd4 Be5 Rc4 Qc7 d8Q Rb8 Rb4 Qcc2 Rc4 Rg8 h8B Rc8 Rb4 Rc4 Bc3 Rh4 Re4 Rh7 Qd4 Bc6 Nb6 Bd5 Nc8 Bb3 Rf1 g1Q Q8b6 Qgh2 Rh1 g2 Rg1 Nh5 Bh6 Ng7 Be3 Qf4 Rf1 g1R Bf2 Rg4 Rg1 Qf3 Be3 Qg3+ Bf2 Ne8 Bf6 Ng7 Qdd6 Rh5 Qb7 Rh7 Qba6 Qcd3 Qd7 Qf4 Ba7 Bd1 Qd4 Qdc2 Qab6 Qg3+
1B1n4/q1r1p1r1/1n1RQ2K/1NpNb1NQ/7r/n1P1P1BN/kb3bBb/2q5 w - - 0 2 legal: proof: d4 c5 b4 a5 a4 axb4 g4 f5 d5 fxg4 Bh3 h5 Bf1 b6 Nd2 Bb7 Ra3 Bc6 dxc6 h4 Rg3 hxg3 Nb1 Rh4 Na3 Rh7 Nb1 Rh8 Kd2 Kf7 Ke3 Ke6 Kf4 d5 Kg5 b5 f4 g2 h4 g3 e3 b3 h5 b2 a5 b4 a6 d4 f5+ Kd5 h6 b3 a7 d3 h7 Kc4 c7 Nd7 c8Q Nh6 f6 Qc7 f7 Nb6 Ne2 g1B Bg2 d2 Bf3 g2 Qd8 Rc8 a8N Bf2 Rg1 Qa7 Rf1 g1B Qd7 Rc7 Re1 Bh2 Nbc3 b1N Nf4 b2 Nb5 Na3 Nh3 b1R Bg2 Be5 Qh5 d1Q Bb2 Qc1 Rd1 g6 Qd6 Bfg7 f8N Ra1 Ne6 Nf7+ Kg4 Ra2 Neg5 Nd8 Qe6+ Kb4 Rd6 Ra1 Nf7 g5 Kf5 g4 Kg6 g3 Nfg5 Rg8 h8B Bgf6+ Kh7 Rg7+ Kh6 Ka4 Bc3 Rb1 Bd2 Rb4 Be1 Bb2 c3 Be5 Bb7 Rh4 Bg2 Nd5 Nb6+ Kb3 Nd7 Ka2 Nf6 Bg1 Bf2 Bh2 Be1 Kb1 Bf2 Nb6 Nd5 Ka2 Bf3 g2 Bg3 g1B Bg2 Rf7 Bf6 Bf2 Bg7 Bd4 B7e5 Rg7 Rd7 Rb7 Bb8 Be5 Rd6 Rc7
1Q1R1r1r/B1Q1n1pK/1R2Pp2/4q3/kbB1R2B/2r1q1q1/4R1Pb/3nNb1q w - - 0 1 illegal: No proof kernel
3Qbn2/2NnKp2/1B1q4/rn3B2/N4r2/P1npN2q/2Q2PbR/bB1rN1k1 w - - 0 1 legal: proof: b4 d5 c4 a5 h4 axb4 d4 e5 a3 g5 Ra2 gxh4 Rd2 Na6 cxd5 Nh6 d6 Nb8 d5 Ng8 Rd4 exd4 Kd2 Kd7 Kd3 b5 Ke4 c5 Kf5 h5 g4 d3 e4 h3 g5 h2 g6 b3 e5 b4 g7 h4 Bh3 b2 Qc2 b3 Qd2 c4 Qh6 c3 Qf4 c2 Qb4 Ne7+ Kg4 Ng6 Kf5 Ra5 g8N Bg7 Nh6 Nf8 Be3 c1R Nc3 b1N Ng4 b2 Qb3 Rd1 Na4 Nc3 Nf3 b1N Bb6 Nb5 Ne1 N1c3 Qc2 Bb7 Ne3 Bc6 Bg4 Qe7 Bh3 Rh6 Bg4 Rf6+ Kg5+ Qe6 Bh3 Rf4 Bf5 Ke8 d7+ Ke7 d8N Qd6 Ne6 h3 Nc7 Be8 e6 Nbd7 Rg1 h1Q Rg2 Bd4 Rh2 Qg2+ Kh6 Kf6 e7 Ke5+ Kh5 Qf3+ Kg5 Qc5 d6 Qcc6 Be6 Ke4 Ba2 Be5 Rh1 h2 Bb1 Nc5 d7 Qh3 d8Q Ncd7 Rg1 h1B Rg2 Qd6 Rh2 Bg2 Ned5 Nc5 Ne3 Bc6 e8B Bg7 Bd7 Bh8 Bc8 Be8 Bg4 Ncd7 Be6 Bf1 N1g2 Kf3 Bf5 Bd4 Qc1 Ke2 Ne1 Bg2 Qc2+ Rd2 Ng4 Kf1 Ne3+ Kg1 Bg4 Rd1 Be6 Ne5 Bf5 Qd5 Kf6 Ned7+ Ke7 Qc6 Qa8 Qd6+ Kd8 Ne2 Qb8 Ba1 Qc8 Qd4 Ke7 Nec3 Qd8 Qd6+
Rn6/1Pn1p3/Q2nb1r1/N1N4Q/Q1q2qrp/K2Rn1bk/qB2P3/R1Q2r2 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 c5 a4 cxd4 axb5 gxh4 g5 f6 Bh3 f5 Bg4 fxg4 Kd2 Kf7 f4 Kg6 b4 Kf5 c4 a5 Kc2 d5 Kb2 h5 b6 a4 c5 g3 b7 Kg4 g6 h3 b5 h2 f5 g2 g7 a3+ Kb3 a2 b6 d3 c6 d4 f6 h4 c7 d2 f7 d3 Qe1 d1R Qf2 d2 Na3 Qd6 Nh3 g1Q Rb1 a1Q Qe3 Qc3+ Ka2 Qf4 Rb3 Ra4 Ng5 Qcc4 Ne4 Rf1 Nc5 d1N Bb2 Be6 c8Q Rh6 Qc1 Nf6 g8Q+ Rg6 Qh7 Bh6 f8Q Nd5 Qfe8 N1e3 Qhh8 Bg7 Qh5+ Kh3 Qb5 Rb4 Qa4 Be5 Qcc6 Nc7 Qd6 Qc2 Nc4 Qgg4 Na5 Qb1+ Ka3 Rd4 Rg1 h1N Rc3 Nf2 Rd3 Ne4 Qdc6 Nd6 Qcb5 Nba6 b8R Re4 Rc8 Nb8 b7 Rb4 Rf8 Qc4 Qa6 Bg3 Re8 Qgf4 Rc3 Nc6 Ra8 Nb8 Rd3 Rb5 Ne4 Rbg5 Nc5 Rg4 Rd2 Qbd3+ Qc3 Rf2 Ra1 Qb1 Rd3 Rf1 Qc1 Qba2+
b1kq4/3p1rnK/4Q1Bn/2pB1NRb/N2bq3/n1Bb3N/3P1PB1/1r1r1Q2 w - - 0 1 legal: proof: b4 b5 c4 g5 a4 f5 h4 gxh4 e4 a6 exf5 bxc4 b5 a5 Ra2 Bg7 Rb2 Bf8 Rb4 axb4 Ke2 e5 Ke3 c5 Ke4 h5 g4 h3 a5 b3 b6 h2 f6 c3 Kf5 h4 Kg6 b2 g5 e4 b7 h3 a6 c2 a7 e3 Bc4 e2 Bb3 e1Q Qg4 Rh7 Nc3 b1N Bb2 c1R Na4 Rf7 Bd5 Nc6 b8Q Nh6 Bc3 Na3 Qb5 Rb8 a8B Bg7 Qe6+ Ne7+ Kh7 Rd1 g6 Ba6 Qf1 Rbb1 Bab7 Bh8+ g7 Bd3+ Be4 Qe3 Bg6 Qe2 Bg2 Qe4 Qc6 Nef5 Qe6+ Qe7 Qd6 Kd8 Qe6 Rf8 f7 Kc8 g8B Bd4 Qb6 Ng7 Qe6 Re8 f8N Qd8 Qb3 Re7 Bd5 Rf7 Ne6 Be5 Nd4 Bf6 Nge2 Be5 Rg1 h1B Nf5 h2 Nf4 Bd4 Bf3 Bg2 Nh3 h1B Qb6 Re7 Qe6 Rf7 Bfh5 Bf3 Rg5 Bfe2 Bf3 Bg2 Nf4 Bh1 Bg2 Bg4 Bh3 Bhf3 Bg2 Bh5 Nh3 Qe5 Bb3 Ba8 Bbd5 Qe4
3R1R1n/2N3q1/3b1Qb1/PRQb1Qp1/1Nrr1pP1/2n3B1/r3K2b/k1b1b1R1 w - - 0 1 illegal: No possible last move
1Qq2RB1/n3NN2/1nbr1b1R/4R1Rp/1Pb1b3/1pQb3b/1PQ1K1n1/3r2k1 w - - 0 1 illegal: No possible last move
1bk3b1/2PbprQQ/1Rq1R1pB/1n1Q4/r4nP1/b7/7b/NNK1bQNn w - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 g3 fxe4 Ne2 b5 axb5 h5 Ng1 h4 Bg2 h3 Qe2 hxg2 Qg4 Na6 Qd1 Nb8 Kd2 d5 h4 Kd7 c4 a5 b4 a4 f4 d3 b6 a3 g4 a2 f5 g6 c5 d4 h5 e3+ Ke1 d2+ Ke2 Nf6 h6 Rh7 b5 Rf7 b7 Na6 b8Q Qe8 b6 Nc7 b7 Bg7 h7 Nh5 h8Q Ra4 f6 Nb5 Kd3 e2 Kc2 e1B Qe5 Nf4 Qh7 d3+ Kb2 Kd8 b8N Qc6 Na6 Bd7 Nb4 Kc8 Qd5 Bh8 Q1f3 d1B Qf1 Bb3 Nc2 d2 Rh3 Bg7 Re3 Bh6 Re6 Bc4 Nd4 d1N+ Kc2 Bg7 Nb3 Nf2 Bd2 Nh1 Kc1 Nh3 Bh6 Nf4 Na3 Bh8 Rb1 a1B Rb2 Bg7 Rb1 Bac3 Na1 Be5 Rb4 Bb8 Nb1 Rf8 f7 Bge5 Nh3 g1B Rb2 Qd6 c6 Bc5 c7 Qc6 Ng1 Ng2 Ra2 Bh2 Rb2 Nf4 Rb4 Re8 f8Q Rd8 Qf6 Rf8 Rb3 Rf7 Qfg7 Na3 Re2 Rf5 Qdd4 Bg8 Rb6 Nb5 Re6 Rf7 Qd5 Ba3+
r3rb2/4p2r/1r3n1k/R1p5/r2B1n1N/2PQRPqB/RQ4bR/b3K1Br w - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 d5 Nf3 dxe4 Nc3 f5 Ne2 f4 Ng3 fxg3 Ng1 Rh7 Ne2 Rh5 Ng1 Rh8 h4 Kf7 b4 Kg6 d4 c5 f3 a5 c3 e3 d5 a4 d6 g2 d7 e2 b6 a3 b7 g3 b5 a2 b6 Na6 b8Q Nf6 b7 Qc7 d8B Bh3 Be3 Nb4 Qd7 Nbd5 Bd4 Nf4 h5+ Kh6 Qd5 Qd6 Bc7 g5 Qf5 g4 Qd3 Rh7 Rh2 Kg5 h6 Kh5 Rb1 a1B Rb6 Qe5 Re6 Qg5 Re3 Qg7 Kd2 e1R Ne2 g1R Bd6 g2 Ng3+ Kg5 Nf5 g3 Nh4 Rb1 Bc7 Rb3 Ke1 Rh1 Bce5 g1R Ra2 g2 Ra5 Rh8 h7 Rb6 Bc7 Rg8 h8R Rh2 Rh7 Rgh1 Bce5 g1R Bd6 Ra2 Rh8 Ng6 Bh2 Nf4 Rh6 Rg3 Bg1 Bg2 Rh8 Rgh3 Rh7 Ne2 Qh2 Rh8 b8R Ra4 Rb7 Nf4 Rba7 Rc4 Ra2 Ra4 Ra5 Rg8 Ng6 Rh5 Rh8 Rh7 Nh4 Bh3 Qb2 Kh6 Bg2 Qg3+ Kd1 Bd7 Bh3 Bb5 Qf5 Bf1 Qd3 Bg2 Kd2 Qg5 Ke1 Qg3+ Kd1 Bg7 Ng6 Rge8 Be6 Kg5 Kd2 R7h2 Rh3 Qg4 Ke1 Bf8 Rh8 Rh7 Bf5 Rf7 Rh2 Rh7 Nh4 Kh6 Be6 Qg5 Bh3 Qg3+
n1Bb1bKQ/kb2R3/1p1p3R/P2r2N1/R5r1/Q1r2n1b/q2PbB1b/3RB3 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 c5 b4 cxb4 g5 b3 Nc3 h6 Nd5 hxg5 Nb4 axb4 Bg2 g4 Bh3 Qb6 Bf1 Qd8 Ke2 e5 Ke3 g5 Ke4 g3 Kd5 e4 a4 e3 f4 g4 h4 g2 c4 d6 f6 Kd7 h5 Kc7 c5 e2 f5 e1B h6 b6 a5 Kb7 c6+ Ka7 h7 b2 c7 b1B f7 g3 f6 b3 Qf3 b2 Rh3 Na6 Qa3 Bbf5 Rh6 b1B Nh3 g1R Bb2 g2 Ng5 Bh4 Bd4 Bh3 Bf2 Bd3 Rd1 Be2 Be1 Qe8 Bf2 Qa4 Be1 Bcg4 c8R Bh5 Rc4 Rc8 Rg4 Ne7+ Ke6 Nf5 Rf4 Qc2 Ra4 Rc3 Bf2 Rg8 h8Q Bhf3 Be1 Bb7 Bf2 Bg7 f8B Nd4+ Kf7 Nf3 Be7 Nc7 Be1 Re8 Bf2 Bf8 Kg8 Qb2 f7 Qa2 Bf6 Re6 Be5 Re8 Beg3 Na8 Be1 Re5 Bgf2 Bd3 Be2 Rd5 Bf1 Bda6 Bd3 Bb5 Bf5 Bf1 Bc8 Be2 Ne4 Bd8 Ng5 Rf1 Qh7 g1B Qh8 Bg7 f8R Bh2 Rf5 Bf8 Rf7 Rg1 Re7 Rg4
rR5b/bQK1r1Q1/N1B3pr/8/1Nnr1Qpn/1B1q2Pr/bb2P3/BB2k3 w - - 0 1 legal: proof: c4 a5 f4 h5 b4 e5 fxe5 d5 a4 axb4 Ra3 dxc4 Rg3 Be7 Rg6 Bf8 Rg4 hxg4 Kf2 Kd7 Kg3 Ke6 Kf4 Kd5 d4 b5 h4 c5 h5 f5 e6 c3 g3 Kc4 Ke5 c2 a5 g6 h6 b3 a6 b2 a7 f4 h7 f3 e7 f2 e8B b4 d5 b3 d6 Nc6+ Kf4 Nge7 d7 Bg7 Nd2+ Kc3 Ke4 b1R Nh3 b2 Bf7 c4 Nb3 Na5 Nf4 Nf5 Kd5 Nh4 Bg2 f1R Nd3 Rf4 Kd6 Rd4+ Bgd5 Re8 h8Q Re7 Nbc5 Ra1 Re1 b1R Nb4 Ba6 Qh7 Bh8 Qg7 Bb7 Be3 c1B Nca6 Bb2 Qa4 Bc6 Bg1 Kd2 Be6 c3 Bf5 Rc1 Bb1 c2 Qb5 Rd1 Qb7 c1B Rf1 Bb5 Rf8 Bc4 Bf2 Ba2 Rg8 Qf8 d8Q Qf3 Qdc7 Qd3 Rb8 Nc4+ Kc6 Rh1 Qf4+ Kd1 Be1 Rh3 Bc3 Be3 Bf7 Re5 Kc7 Rh5 Bg8 Rh6 Bd5 Nd2 Bb3+ Ke1 Rg8 Re8 a8B Re6 Rb8 Bg1 Qc6 Re7+ Qd7 Rd5 Bf6 Ba7 Bc6 Nc4 Be5 Rd4 Bf6 Re3 Qc8 Re8 Qb7 Re7+ Bd7 Rd5 Qg5 Bf2 Ba4 Bbd4 Qf4 Bb3 Nc5 Ra3 Be5 Ba2 Bb3 Ra8 Nca6 Ba7 Ba1 Bfd4 Kc6 Bb2 Kc7 Re6 Bda4 Rd4 Bc6 Re7+
3R1Kbb/3p3B/Q5Q1/1nnkP2b/4b1nn/5prr/1R2QPQN/1Nq2n1N w - - 0 1 legal: proof: d4 b5 Kd2 g5 a4 e5 axb5 exd4 h4 gxh4 Ra6 c5 Ra2 c4 Ra1 c3+ Kd3 Bb4 Bg5 Bf8 Bd2 cxd2 Ke4 Ke7 Kd5 f5 e4 h5 c4 a5 b4 f4 g4 h3 e5 h2 c5 d3 c6 h4 b6 a4 g5 a3 g6 h3 g7 a2 b5 Na6 b7 Nf6+ Kc4 Ke6 b8Q Nc7 g8N Bb7 b6 Qc8 Qc2 d1B Qe2 d2 Nh6 Nb5 c7 Ra3 Qa7 Ng4 Qa6 Rg3 Nf5 Be4 Nf3 Bg7 Kc5 Bb3 Qa8 d1B b7 Rh7 b8Q Bh8 Rg1 h1N Nh2 Qa6 c8Q Qc6+ Kb4 Rh6 Qca6 Kd5 Qe8 Rh7 Qg6 Rh4 Q8c8 Qc1 Qc3 Rh5 Qcf3 Rh7 Qg2 Rh4 Nd2 Rh6 Rb1 a1N Rb2 Rh4 Nhf3 h2 Nb1 Ba2 Qg5 Nb3 Qgg6 Rgh3 Ng3 Nc5 Qe1 Rh5 Bd3 Rg5 Qe2 Bc4 Nh5 Ng3 Bc2 h1N Nh2 Nf5 Ng3 Ba2 Bd3 Bdb3 Bc2 f3 Bd3 Qe3 Rc1 Nh4 Rc4 Nb7 Rc8 Nc5 Rd8 Qc1 Bc4+ Kd4 Bg8 Bf7 Bh7 Bac4 Ka5 Kd5 Kb6 Nd3 Kb7 Nc5+ Kc8 Bb3 Rf8 Be8 Kd8 Bf7 Ke7 Be8 Qgb6 Bh5 Rd8 Rg6 Kf8 Rg7 Nf5 Ng3 Qg6 Nf1 Ng3 Kd4 Qb7 Nh6 Qgc6 Bg8 Nh1 Rgg3 Qg6 Ng4 Qba6 Kd5
b1nrN3/N7/b2nb2b/1n2NQ1K/B1pR4/2Pbpnq1/4NBQP/k3B2r w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 Bh6 hxg4 Bc1 e5 dxe5 f5 Bg5 Rh5 Bc1 Rh8 a4 Na6 e4 Bc5 e6 Be7 e5 Nb8 Ra3 Bd6 Re3 Bf8 Re4 fxe4 Ke2 Ke7 f4 g5 a5 b5 a6 c5 c3 d5 f5 b3 a7 b4 Qd2 b2 Qc2 g3 Bf4 g4 Bh3 g2 Be3 g3 Bf2 e3 Kf3 b3 Kg4 d4 Kg5 d3 Kg6 d2 Na3 b1B Qa2 d1B Qc2 b2 Bg4 Ba2 Qd2 b1B Be2 Nh6 Bb5 Nd7 Bf1 Bd3 Nc2 Bf3 Ne1 Qc7 Ne2 g1N Qc2 g2 Qb1 Bc6 Kh5 Nb6 Nf3 Bca6 Be1 Rb8 a8Q Nc8 Qc2 Rb1 f6+ Kd8 f7 Ke7 Qb7 Bb3 Qb5 Ba8 Qb7 Ba2 Qe4 Bg7 Qf5 Rd8 Qb2 Nd6 Qb7 Ng8 Qbe4 Bh6 f8B+ Ke8 e7 Be6 Qd5 Kd7 e8N Ne7 Bg7 Qb8 Bf6 Nc8 Bfh4 c4 Bhf2 Rd1 Nc7 Rc1 Qb7 Ra1 Qb2 Kc6 Nb5 Kb6 Qc2 Ka5 Na7 Rd1 Qb2 Ka4 Qd2 Ka3 Qc2 Bd7 e6 Ra1 e7 Be6 Ne5 Nf3 e8N g1N Bh3 Nd4 Bg2 N4b5 Bc6 Nf3 Rg1 Qc7 Rg4 Qg7 Rd4 Qg3 Bd2 Rh1 Bde1 Nc7 Ba4 Ncb5 Qd1 Kb2 Qd2+ Ka1 Qc2 Qg8 Qd2 Bb1 Qdc2 Qg3 Qce4 Bd3 Qb7 Nh4 Qg2 Nf3
B6Q/bnNb3Q/r2n1Pq1/3r1k2/1Q1R2p1/np1b4/KPbN1n1N/N2b2B1 w - - 0 1 illegal: No possible last move, all moves rejected
q1Qbq2K/4np2/nRr4P/N1k1N2b/2N4p/5r2/1QB1r1rP/2BQr1Nr w - - 0 1 illegal: No proof kernel
Qrn1n1bK/qrppr3/1QR5/2P2r2/k2P3N/nNBb1Q2/Q3B3/4Nrn1 w - - 1 2 legal: proof: b4 a5 f4 axb4 g3 e5 Nh3 exf4 Kf2 f5 Bg2 f3 Ke3 f2 Kd3 f4 Ng1 f3 Bh3 Nh6 Bf1 Ng8 a3 Bd6 a4 Bf4 gxf4 h6 Ra3 Nc6 Rc3 Nb8 Rc5 h5 Rg5 Ra7 Rg6 Ra8 Rg4 hxg4 Ke4 g5 Kf5 b5 Kg6 b3 Kg7 g3 c4 g2 d4 b4 e4 b2 h4 b3 e5 g4 f5 g3 a5 Nf6 a6 Rf8 h5 Ke7 a7 Bb7 e6 Kd6 c5+ Kc6 Nd2 b1N h6 b2 e7 Na3 e8Q b1R Be2 f1B h7 f2 Ngf3 g1R h8Q g2 Qf7 Ne8+ Kh7 Ba6 f6 Rb7 Bb2 Bc4 Nb3 Kb5 Bc3 Nc6 Rh6 Ne7 Ne1 Rab8 a8Q Nc8 Qhg7 Rh1 Qgg6 g1N Qe6 Rh3 f7 Re3 Qgc2 Re5 Qa2 Re4 Qf6 Re7 Qdb1 Bd3+ Qf5 Bg2 Rc6 f1R Qe4 Rf5 Qe3 Bd5 Qf3 Rg8 Qbb2 Rg6 Kh8 Rgf6 f8N Bg8 Ng6 Rff7 Na5+ Ka4 Qb6 R7f6 Qg2 Rf1 Nh4 R6f5 Qf3 Nf6 Qab2 Qf8 Qa2 Ne8 Qg2 Qf7 Qf3 Qc4 Nb3+ Qa6 Qd5 Qa5 Qf3 Qa7
1k4rr/qn4n1/1b1n1p1K/NB3RQ1/r2NP3/QR3PnQ/p3rQN1/5bn1 w - - 0 1 illegal: No possible last move
2r1B3/RQ1N1p1p/KB1rb3/Nq1n1N2/rr3Nq1/2rP3Q/4rPn1/1kb1B3 w - - 0 1 legal: proof: b4 d5 a4 b5 h4 g5 d3 gxh4 Kd2 e5 Ra2 e4 c4 dxc4 axb5 e3+ Kc3 Bd6 Rd2 exd2 Kc2 Bf8 Kc3 Kd7 g4 Ke6 e4 Ke5 b6 a5 g5 c5 g6 a4 g7 a3 b5 h3 b7 a2 b6 a1R Qf3 d1Q Na3 h2 Qe2 Nd7 b8N Ra6 b7 Qe8 Be3 Nh6 g8N Ng4 Qf3 Ndf6 Qh3 Be6 Nh6 Qb5 Bd2 Ne3 Nf5 Rd6 Be2 Ng2 Bf3 Bh6 Be1 Re8 Ne2 Bc1 Nf4 Qe2 Rg1 h1R Bg4 Qf3 Rf1 Qg3 Bd1 Qg4 Ba4 Qb6 Bc6 Qb5 Bd7 Rc8 Be8 Ra2 Nb1 Ra5 Nd2 Ra4 Nb3 Rh2 Na5 Nd5+ Kc2 c3 Rh1 Qa6 Kb3 c2 Rf1 Rd4 Rg1 c4+ Ka4 Qb6 Nb3 Qc6+ Ka5 c3 Rh1 Rb4 Rf1 Nb6 Ka6 Rh1 Na5 Rg1 Nh6 Kd4 e5 Qc5 Nd7 Qb5+ Ka7 Ra4 b8B Nd5 Bc7 Rh1 Bd8 Rcc4 Rg1 Rcb4 Bc7 Ba3 Rf1 c1R Rg1 c2 Bb6+ Qc5 Ka6 Bb2 Qh5 Rh3 Rf1 Re3 Qh3 Re2 Rh1 Rd2 Rg1 Kc3 Nf5 Ba3 Rh1 Kb2 Rf1 Kb1 Rh1 Re2 Rf1 Ne7 Rg1 Ba2 e6 Nd5 e7 Qb5+ Kb7 Rf6 Nb8 Rfe6 Bd7 Nc7 e8Q Rd6 Bc3 Bb3 Nac6 Ra6 Qc8 Be6 Be8 Ka2 Nd7 Nd5 Rd1 Ra8 Be1 Ra1 Qc7 c1R Rd2+ Kb1 Ra2 Bb2 Ra7 Raa4 Na5 Rc8 Qb8 R1c3 Qa8 Qc5 Ka6 Bc1 Qb7 Qb5#
7N/K3k3/rN2bn1p/b1nQ3p/P1bnrQ1P/1Rq2N1B/3r1N1Q/1n1R1b2 w - - 0 1 illegal: No possible last move
6Q1/bRR1p2N/B3Kn1n/kr3Q1Q/1nR4P/2bq1p2/1R3Pbr/B3rr1b w - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 dxe4 Nc3 h5 Na2 hxg4 axb5 Ba6 b6 Bb7 b5 Bc8 Nb4 cxb4 Ke2 Kd7 Ke3 a5 Kf4 g5+ Ke5 f5 d4 a4 c4 f4 c5 g3 d5 a3 d6 a2 b7 g2 h3 e3 b6 Kc6 d7 g4 Bb2 b3 Nf3 g1B Qe2 g3 Qd2 g2 Qd4 e2 Ne1 Kb5 c6 Bh2 c7 g1R Bc3 b2 Rb1 a1N Rc1 b1B Qd1 Be4 Nf3 Bg7+ Ke6 Nc2 Ng5 Bg2 Ba1 Nh6 Nh7 Nb4 Rc4 e1R+ Qe2 Be5 Qh5 Ra5 Be2 Rgf1 h4 Rg8 Bd3 f3 Rg1 Bh1 Rgg4 Rg7 Rc2+ Ka4 Ba6 Rb5 Rgc4 Ka5 Rc1 Rg2 R1c3 N8c6 b8R Nd5 b7 Nf6 Rc2 Bhf4 Rb2 Bg3 Ra8 Bh2 b8R Nb4 Rb7 Bhf4 Raa7 Rh2 Rb6 Be3 Rb8 Bb7 c8Q Bc3 Qcc5 Be4 Qcf5 Bd3 Rac7 Be2 Rbb7 Ba7 Qd5 Rg1 Qdf5 Bf1+ Qe5 Bfg2 Qf5 Qh8 d8Q Rgf1 Qg8 Qg7 Qh5 Qg4+ Qf5 Qe4 Qh5 Qd3 Qe4 Rd1 Qef5 Rde1+
1b2Qrb1/4b3/n1rR3b/2rnN2B/1N1Q1Qrp/6Nk/p2K1PNP/R5nq w - - 0 1 legal: proof: d4 b5 c4 e5 g4 f5 a4 fxg4 Be3 d5 axb5 dxc4 d5 Nd7 Bc5 Nb8 Bd4 exd4 b4 Ke7 e4 Kf6 e5+ Kf5 b6 h5 d6 g5 b5 a5 b7 c5 b6 a4 d7 g3 e6 g4 e7 g2 e8Q c3 Bc4 h4 Ba6 c2 Bf1 c1B Qf3+ Bf4 Qh3 d3 Qf3 g3 Na3 c4 Qee2 c3 Qc6 d2+ Kd1 Ra5 Nf3 Kg4 Qce4 g1N Kc2 d1R Nb5 g2 Ne5+ Kh3 Nd4 a3 Nf5 a2 Qd4 Nf6 Ng3 Na6 b8N Nd5 b7 Rc5 Nbc6 Be7 b8Q Rf8 Nb4 Rc1+ Kd3 Qb6 d8N c2 Ne6 Qc6 Qh5 Bd7 Be2 Be8 Qh8 Bf7 Bh5 Bg8 Qf6 Qa8 Qe8 Qc6 Nc4 Bb8 Qff4 Nf3 Rf1 g1R Ne5 Rg2 Rd1 Ng1 Kd2 Qb7 Nh1 Rg4 Ng3 Ndc7 Ng7 Qh1 N7f5 Nd5 Ne3 Ra5 Qde4 Nb6 Kc3 Rb5 Rd6 Nd5+ Kd2 Rb6 Qg5 Rc6 Qd4 Re1 Kd3 c1B Ng2 Rf1 Qf5 Bh6 Qff4 Rfc1 Kd2 R1c5
nN1Q3n/3pprrK/Q2bR2B/Pb2Qq2/2N4Q/8/B1r1Pbn1/2B2nkr w - - 0 1 illegal: No possible last move, all moves rejected
q1k1q2N/Bn1NP1N1/rqpRBq2/1r3b1Q/2np1N2/b2PB3/2Qr4/K6r w - - 0 1 legal: proof: b4 b5 c4 h5 f4 e5 g4 exf4 gxh5 a6 a4 bxc4 b5 a5 Ra3 Nh6 Rb3 Ng8 Rb4 axb4 h4 f5 e4 d5 a5 Kd7 h6 g5 a6 c3 d3 b3 h5 f3 b6 f2+ Ke2 g4 h7 c2 Kd2 g3 Kc3 c6 Kb2 g2 e5 f4 b7 f3 h6 Ba3+ Ka1 Ne7 a7 Nf5 Rh2 Qe8 Ne2 g1Q Nd4 Nd6 Nf5 Nc4 Nc3 Na6 b8B Nc5 Be3 Nb7 Bh3 f1R Ne2 Rf2 Nf4 Rd2 e6+ Kd8 Rg2 f2 Ng7 f1Q Rg6 d4 Qb1 c1R Bf5 Bd7 e7+ Kc8 Rd6 Qgg6 Bh3 Qf6 Be6 Rf8 h8Q b2+ Ka2 Qf3 h7 Rh1 Qc2 Qf2 Qg8 Qf3 h8N Qd5 Qh7 Qa5 Qh5 Rg8 Nf5 Rg5 Ng7 Qa4 Bc7 Ra5 Bb6 Rb8 a8N Ra6 Ba7 Qa5 Bg8 Bf5 Bf7 Nd8 Bg8 Rb5 Bd5 Nb7 Nb6+ Kc7 Nd7 Kc8 Bc5 Qb6 Be6 Qa7 Bb6 Qa8 Ba7 Re5 Kb3 b1Q+ Qb2 Qc1 Ka2 Qc3 Qc2 Qb4 Nf7 Qb6 Nh8 Rhh2 Ka1 Rb5 Ka2 Rh3 Ka1 Rh1+
4rRK1/1p3B1Q/1PbnqnQR/pN2b3/2P3n1/1QRbq3/1Bnrk3/6Rb w - - 0 1 illegal: No proof kernel
3B3k/p1P1Qb2/qQ1rb3/2QR1R2/pr2bN1r/P1b2R1n/1R3Nqn/2K1r3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 h4 gxh4 Bc4 c5 Bb3 cxd4 Ba4 bxa4 Kd2 Kf7 g4 Kg7 c4 e5 b4 h5 f4 d5 a3 e4 b5 d3 b6 d4 g5 h3 g6 e3+ Ke1 e2 Kd2 e1R b7 h4 c5 h2 c6 h3 c7 Bb4+ Nc3 Nc6 b8Q Nce7 Qc2 Nf6 Ra2 Rh4 Rb2 Be6 Qb6 Rb8 Ne2 Ned5 Rf1 h1B Rf3 Ng4 f6+ Kh8 f7 h2 f5 Nf4 f6 Nh3 Nf4 Qg8 f8Q Rb7 Qfd6 Qc8 f7 Bg2 Re3 h1Q Qe7 Be4 Rf3 Nh2 f8R+ Bg8 Rf2 Qg2 Rf5 Bf7 Rd5 Rb8 Rf5 Qa6 g7+ Kh7 g8R Rb7 Rgg5 Kh8 Qc6 Ba5 Rd5 Rb4 Nd1 Be6 Q2c5 Bf7 Rc2 Be6 Bb2 Bf7 Kc1 d2+ Kb1 Be6 Q6b6 Bf7 Rge5 d3 Rf3 Be6 Rc3 Bf7 Rb3 Be6 Bc1 Bf7 Nf2 d1B Rb2 Bb3 Rf5 d2+ N4d3 Bc4 Kc2 d1R Bg5 Ra1 Kd2 Rac1 Nf4 Rb1 Rd6 Bce6 Rdd5 Rbc1 Qd7 Rc3 Bd8 Rd3+ Kc2 Rb5 Qde7 Bc3 Qc4 Rb4 Qcc5 Re2+ Kc1 Rdd2 Rde5 Rd6 Rd5 Re1+
qb3N1q/B3pNQn/B5p1/b2rP1RP/1nrQ3q/KQb4k/6q1/3Q1N1b w - - 0 1 legal: proof: d4 h5 b4 c5 g4 hxg4 a3 cxd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Rh6 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 e4 Kg6 c4 Kh5 Kc2 Kh4 Kb2 d5 f4 a5 c5 g2 h3 g6 f5 g3 e5 d3 f6 a4 f7 d2 c6 d4 b6 d3 b5 a3+ Kb3 a2 b7 a1B b6 Bh6 f8Q Ra5 c7 Nc6 b8Q Bc3 b7 Nb4 Qe2 d1Q+ Qc2 d2 Qg7 Rd5 Ba6 Qg4 Qd1 Nf6 Ka3 Nh7 Bb2 Bd7 c8Q Bc6 Qd7 Rf8 Qdd6 Rf4 Qc5 Qe8 Qd4 Qh8 Qbg8 Qc8 b8N Bb7 Nd7 Qa8 Nf8 Bg5 Qe2 d1Q Nd2 Qe1 Qd1 Re4 Nf1 Bgd2 Qe6 Qf2 Bc1 Be1 Be3 Rg4 Q4d2 Rc4 Ba7 Qf6 Qd4+ Qf4 Ne2 g1Q Qeg8 g2 Neg3 Qf2 Ne4 g1B Ng5 Qg2 Nf7 Bgf2 Rg1 Qfg4 Ne3 Kg3 h4 Kh3 h5 Qh4 Nf1 Bc6 Q4d2 Bb6 Qd4 Bc7 Qf6 Bb7 Qgg7 Bb8 Qfb6 Nd3 Qb2 Ba5 Qbb3 Bec3 Nd8 Nb4 Nf7 Qh2 Rg4 Qg2 Rg5 Qe2 Ng3 Rdc5 Rg4 Bh1 Nf1 Rd5 Rg5 Qg2
5q1r/N2n1Q2/qp1RpQ2/4BR1b/KQ1NPn2/1n3q1q/2RbP1r1/R2nk3 w - - 0 1 illegal: No proof kernel
2R1b1n1/bn3rN1/5Qb1/pkPRQq2/1pN3K1/1R1b1n2/rP1NRq2/B2n4 w - - 0 1 illegal: Other
K4brR/Qb4Qn/R3BNpq/3rkB1b/Pb5n/2R1Bp2/2q1B1P1/n5n1 w - - 0 1 illegal: No proof kernel
2BQ1n2/rQBb1pkn/8/pn4bQ/1P1qR1B1/1Kn1q1N1/1b2rP2/b5QN w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a3 h5 Ra2 hxg4 a4 e5 Ra3 e4 Rd3 exd3 axb5 Rh5 Ba3 Rh3 Bc1 Rh8 Kd2 a5 h4 d5 e4 g5 c4 g3 c5 g4 c6 g2 h5 g3 e5 Ra7 h6 Qg5+ Ke1 d2+ Ke2 d3+ Kf3 d4 Ke4 Bg7 Kd5 Kf8 Kc4 Nd7 e6 Qe3 b6 Ngf6 b7 Nh7 Qg4 d1Q b8Q d2 c7 d3 Rh4 Bb2 Ne2 g1B Bh3 g2 Ng3 Bh2 Nc3 g1B Nh1 Be5 Ne2 Bgh2 Qb7 Bhf4 Neg3 Bg5 e7+ Kg8 e8Q+ Ndf8 Qe7 Bd7 c8B Ba1 Qd8 Beb2 Qh5 Qg4+ Kb3 d1N Bd2 Qgd4 Re4 Nc3 Bg4 Nb5 Bc3 d2 Qh2 d1N Qg1 Qc1 Bd2 Ndc3 Bf4 Qce3 Bc7 Nf6 h7+ Kg7 Kc2 Ne6 Kb3 Re8 Re5 Nf8 h8Q+ Kg6 Qhh2 N6h7 Re4 Kg7 Qh5 Qf3 Rf4 Re2 Re4 Qfe3
Q3Q1bK/2n2b2/q6B/krr1p2p/2B1P1qP/1q1q3r/BBRb1Q2/2qN3R w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Na3 axb4 Nc4 f5 Qe2 f4 Qf3 Qc7 Qd1 Qd8 g4 Qc7 Ne3 fxe3 f4 Na6 f5 Qd8 g5 Nc7 Bd2 Nd5 Bc1 Ndf6 gxf6 Qa5 Bd3 Qc7 Bf1 Qd8 Ke2 e5 Kf3 d5 Kg4 Kd7 Kg5 Kc6 c4 Kb6 a4 d3 c5+ Ka5 h3 b5 c6 d4 c7 b3 Ne2 b2 Qb3 b1B Kh5 g5 f7 b4 f6 d2 Ra3 d1Q Qd3 g4 Qc3 d3 Rg1 d2 Qd3 g3 Rb3 g2 Kg5 Ne7 Ba3 Qc1 Rh1 d1Q Rb2 b3 Qd4 Be6 c8B Ba2 Nc3 Nd5 Bc4 Nc7 Rc2 Bb4 Kh6 g1Q f8B b2 f7 b1R Bb2 e2+ Qe3 e1Q h4 Qgg4 Qf4 Qde2 Nd1 Qeg3 Qd2 Bd5 Be6 Qb3 Bg7 Qc8 f8Q Qed3 Qe8 Qa6 Qf4 Bd2 Qe3 Kb4 a5 Rc8 Qf4 Rf8 Qe3 Rf3 Bf8+ Qd6 a6 Rh3 a7 Ka5 a8Q+ Qa6 Qf4 Qf5 Kg7 h5 Bg8 Qg4+ Kh8 Bf7 Qf2 Qa4 Bba3 Rb5 Bb2 Qab3 Bg7 Rc5 Bf8 Rb8 Bh6 Rbb5 Qg1 Qb4 Bb3 Bg6 Qf2 Bh7 Bgf7 Bg8 Bbd5 Bb3 Bde6 Ba4 Ba2 Bb3 Be6 Bd5 Bf7 Qbb3 Be6 Bc6 Bc4 Bcd5 Qf5 Bde6 Qf2 Bef7
2n1Q1bN/np1Qb1K1/1P5B/1B1n2p1/R4Bn1/n3rBP1/2b1n3/k1br1NN1 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 h5 a5 b5 Qc7 Ra2 Qd6 Rb2 Qb6 Rb4 Qg6 hxg6 axb4 Kd2 e5 c4 Ke7 f4 Kd6 b6 Kc5 a5 d5 g7 h5 f5 b3 f6 Kb4 c5 d3 Ke3 h4 c6 d4+ Kf2 b2 a6 e3+ Kf3 h3 Ke4 h2 f7 e2 g3 e1N a7 d2 c7 d3 Be2 Ng2 Bf3 Ne7 g8N Be6 c8B Nbc6 Na3 Kc3 Nc2 b1N Bh5 Ne3 Qf1 d1B Qe1+ d2 Qf2 N3d5 Qf1 Na3 Bd7 Nc8 Qf2 Be7 Ne3 Bc2+ Kf3 d1N Nh6 Re8 f8B Bg8 Kg4 e4 Nf1 e3 Qf7 e2 Bf4 Kb2 Qf5 e1B Nf7 Ka2 Nh8 N1c3 Bh6 Ka1 Qf7 Rb8 a8Q N6a7 Bb5 Ne2 Qe6 Bd2 Qd7 Nc6 Qa4 Bc1 Qe4 Rd8 Kf5 N6a7 Kg6 Ra8 Kg7 Re8 Nf3 Rd8 Rg1 h1N Rg2 Nf2 Ng1 Rb8 Bf3 Ng4 Qee6 Ra8 Qe8 Rd6 Q6d7 Re6 Rh2 Re3 Rh1 Nd6 Rh3 Rd8 Rh4 Ndc8 Bb8 Ngf6 Ra4 Ng4 Bf4 Ndf6 Qc7 Rd1 Qcd7 Nd5
1Qn1b1K1/R1n5/5p1k/2NQ1P1r/1q1NRnbp/2B1b3/rP2qpR1/1r1N3R w - - 0 1 legal: proof: d4 e5 f4 b5 a4 c5 axb5 cxd4 h4 g5 e3 gxh4 Be2 e4 Bf3 exf3 Kf2 d5 c4 h5 g4 a5 g5 a4 b6 d3 g6 h3 Kg3 f2 c5 a3 e4 a2 b7 d4 f5 d2 Kf4 h4 Ke5 h2 c6 d3 g7 Bd7 c7 f6+ Kd5 Kf7 c8R Qe7 e5 Na6 b8N Qb4 Nf3 Rh5 Nc3 Bc5 Re8 Be3 Nd4 Ra7 Qb3 d1Q Bd2 Qe2 Nd1 Ba4 Be1 d2 Nd7 Ra8 Nc5 Bb5 Qd3 Nc7+ Kd6 Ne7 g8R Ba4 Qb5 Nc8+ Kd7 Ra6 Rg2 Ra5 Re7+ Kf8 e6 Ra6 Rc1 a1R Rc4 Rb1 Kd8 Ra5 Qd7 Ra6 Qd5 Be8 Rh7 Ra2 Rd7 Bg6 e7+ Kg7 e8Q+ Kh6 Re7 Bf7 Qb5 Be8 Qb8 Na8 Ra7 Nc7 Rhg1 h1N Rf1 Nd6 Ke7 Ng3 Kf8 Nc8 Rh1 Rg5 Nc2 Nh5 Re4 Nf4 Nd4 Rh5 Kg8 Qf1 Nc3 d1B Bd2 Bg4 Nd1 Qfb5 Bc3 Qe2
N3n3/1K2b2p/1B6/4Nq1q/k1b2pnQ/p1Qr1P1P/1q1BbB2/r2n1RBQ w - - 1 2 legal: proof: d4 b5 a4 d5 axb5 e6 c4 dxc4 e3 Qf6 d5 Qf3 d6 Qf6 Be2 Qd8 b4 g5 Kd2 g4 Bf3 g3 Bd5 exd5 f3 Qg5 Ra2 Qe7 Ke1 Qd7 Rf2 gxf2+ Kd2 Qd8 Kc3 Kd7 Kd4 f1Q Kc5 a5 g4 f5 g5 f4 g6 d4 b6 c6 b7 a4 e4 a3 e5 d3 b5 c3 g7 d2 b6 c2 h3 Qd3 Nc3 Qe8 Na4 Qh5 Ne2 Be7 Nd4 Qdf5 Rf1 Nf6 g8Q Ng4 Qc4 Rg8 Qc3 Ra6 Qe1 d1B Bd2 c1Q Qh4 Rd8 Ne2 Qcb1 Nc1 Be2 Nd3 Qc1 Kb4 c5+ Kb5 c4 Kc5 Nc6 b8B Qb2 b7 Rb6 Ba7 Nf6 b8B Ne8 Kd5 Rb3 Bg1 Ba6 Bba7 Rdb8 Baf2 Rc8 Qd4 c3 Qb4 c2 Qc3 c1N Nb6+ Kd8 d7 Kc7 d8B+ Kb7 Qc5 Na2 Qc3 Bb5 Na8 Ka6 Qc4 Rc3 Bdb6 Rc1 Qc2 Ra1 Qd1 Bg5 Kc5 Nc3 Qc1 Nd1 Qc3 Rc7 Kd5 Bc4+ Kc5 Bd5 e6 Bc4+ Ne5 Rd7 e7 Rd3 Bde1 Nb8 Bd2 Nd7+ Kc6 Ndf6 Bbe3 Ng4 Bb6 Ng7 e8Q Be7 Qg6 Ne8 Qg7 Ngf6 Qg2 Ng4 Qh1 Ng7 Kc7 Kb5 Kb8 Ne8 Kb7 Ka4
Kq3Q1Q/1Pb2qBB/bbN1Bp2/n2nQ2R/1r1p2Q1/kp1P4/rnq5/2R5 w - - 0 1 illegal: No possible last move, all moves rejected
1b1B1qbb/r3r1N1/rp6/kP2RBqQ/3P1BQ1/1Qpp2Q1/2NK4/4nq1n w - - 0 1 illegal: No possible last move, all moves rejected
1B3kq1/Nbn1qr2/p1RN1rp1/Pnb3b1/3P2NR/n3r3/4pRR1/QK1Q4 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 h4 b5 a4 e5 f4 g3 c4 b4 a5 b3 f5 a6 h5 e3 c6 g6 c5 e2 c7 e4 c6 b2 f6 Bg7 h6 Ne7 h7 Rf8 h8Q Bh6 Nh3 g1B Nc3 b1N Ra2 g2 Nf2 Ra7 Rh4 Nd5 Ng4 Bc5 Nb5 Bb7 c8N Na3 c7 Nc6 d4 Kf7 Bf4 g1R+ Kd2 e1Q+ Kc1 e3 Rg2 Bg5 Qh6 e2 Nbd6+ Kg8 Qh5 Qb4 f7+ Kg7 Nc4 Re8 f8R Rf1 N4d6 Re3 Bh2 Qb3 Rff2 Qe7 Bf4 Kf8 Qh7 Ra8 Na7 Rd8 c8R Nc7 Qh5 Qg8 Kb2 Re8 Qh7 Rf3 Bh2 Rf7 Qh5 Nab5 Kb1 Ne5 Qh7 Nc4 Qh8 Na8 Rc6 Nac7 Bf4 Qd7 Qf6 Re3 Qf5 Qe8 Qd3 Qe7 Qc3 Rh1 Be5 Rhh3 Qa1 Rhf3 Bg3 R3f6 Ndc8 Nd5 Bb8 Ndc7 Nd6 Nca3+
N1n2bRN/p6p/qP4Qr/1RpKbR1P/2Q3n1/1q1B4/2rk1n2/1bRNr3 w - - 0 1 legal: proof: c4 e5 a4 d5 b3 dxc4 Qc2 b5 axb5 e4 Kd1 e3 Bb2 exf2 Bf6 gxf6 Kc1 f5 Qd1 f4 Kc2 Kd7 Kc3 Kd6 Kd4 f5 h4 c3 g4 c6 e4 c2 b4 c1B g5 f3 b6 f4 h5 Nd7 b7 Qe8 b8R Bb2+ Nc3 Ne7 e5+ Ke6 g6 Kf5 b5 Kg5 g7 Nc5 e6 Ne4 Qc2 Rg8 Ra5 Qf7 Bd3 f1N Ne2 Ne3 Rc1 f2 b6+ Kg4 Rf5 f3 Nf4 f1R Ng6 f2 Nh8 Re1 Qa4 f1Q Qc4 Bb7 Ke5 Nc8 e7 Kg3 e8N Nf2 Nc7 Neg4+ Kd4 Ba6 Rb5 Kf3 Rb7 Bba3 Nd1 Bad6 Rb8 Qe6 Rb7 Rb8 Na8 Bh2 Rf7+ Bf4 Qa2 Qb3 Rff5 Rb7 Qa4 Rc7 Qc4 c5+ Kd5 Rc6 Bb1 Rh6 d4 Qfd3 Bc2 Ke2 Bb1 B8d6 Bc2 Rf8 g8Q Kd2 Qg6 Bfe5 Bb1 Qf1 Bd3 Qe2 Kc6 Rd8 d5 Bf8 d6 Qf1 Kd5 Bb7+ Ke6 Be4 d7 Qe2 Rf6 Bf5+ Kd5 Re8 d8R Qf1 Be2 Bb1 Rf5 Re6 Bd3 Rf6 Rg5 Rf3 Rf5 Rh3 Bc2 Rc3 Bd3 Rc2 Rd7 Qa3 Rg7 Qh3 Rg8 Qa6 Bf1 Qc3 Bd3 Qb3
1Br2Rn1/1PNpQ1K1/q2RQ3/5nbp/1Q2Br1b/3qk1rP/bB1p1n2/2B5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 g6 Nc3 fxe4 f5 g5 Nce2 Nf6 Nf4 gxf4 Bc4 Ng8 Bd3 Bb7 Bf1 Bc8 Ke2 Kf7 c4 Kf6 g4 Ke5 b4 h5 b6 a5 b7 e6 f6 e3 Kf3 e2 g5 e1B h3 d3 g6 Kd4 f7 d2 g7 e5 c5 a4 c6 a3 c7 a2 b5 Bh4 b6 Qg5 Qb3 Nc6 b8B Ba6 c8Q Bc4 b7 Nce7 Bg2 Qf5 Qe8 Ra3 Rb1 a1Q Ne2+ Kc5 Nc3 Kd4 Qb5 Ba2 Rf1 Qh7 Rb3 Nf5 Nd5 Bfe7 f8B Beg5 Nc7 Qg6 Qe7 e4+ Ke2 e3 Kf3 Qc3 Qbb4+ Qc4 Rc3 e2 Bh1 Qa6 Bb2 Nf6 g8Q Rb3 Qge6 Ng8 Kg2 e1N+ Kh2 Nf6 Be4 f3 Bc1 f2 Bg7 Rc8 Rg3 Be3 Rg6 Beg5 Rh6 Ke3 Bh8 Ng8 Bhb2 Nd3 Kg2 Rc3 Rf6 Kd4 Kf3 Qa8 Rf8 Qa6 Rg1 Bf4 Rg6 f1R+ Kg2 Nf2 Rh6 Ne3+ Kf3 Bfg5 Rg6 Bf6 Kf4 Nf5 Bf3 Kd3+ Be4+ Ke2 Rh6 Bfg5+ Ke5 Rg3 Rhf6 Ke3 Rg6 Nd6 Rgf6 Qd3 Rh6 Nc4+ Kf5 Nd6+ Kg6 Nd1 Kg7 Rf4 Rhf6 Nf2 Q6f7 Nb5 Rd6 Nd4 Qfe6 Nf5+
4rRQ1/4Bp2/2p1BnnP/1n3P2/p1b1kqbR/N1b2r2/2q4B/1KQ1BRr1 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 h5 a4 hxg4 Nd2 d6 Nb3 d5 axb5 dxc4 d5 Qd6 Nd4 exd4 Nh3 Qf6 Ng1 Qd8 Kd2 Kd7 Kc2 Kd6 h4 Ke5 e4 g5 b4 a5 h5 c6 h6 d3+ Kb1 c3 b6 d2 b7 g3 d6 g4 b5 g2 d7 g3 b6 Bg7 Ne2 g1R Bh3 g2 Nd4 Qc7 d8B Nf6 Be7 Nbd7 b8R Re8 b7 Nf8 Be6 Ng6 Nb5 a4 f3 Ra5 Na3 Bh8 Qf1 d1B Rh4 Bb3 Bd2 Bc4 f4+ Kd4 e5 Ke4 Qc1 c2+ Kb2 Rd5 Be1 Rd3 Ra8 Rf3 b8B Rh1 Rb1 g1N Ra1 Ne2 Rb1 Nc3 Ka1 B8a6 f5+ Ng4 Kb2 Rg1 Ra1 Qd6 Bc7 Nb5 Rd8 Rg8 Rf8 Qd2 Bb8 Qf4 Bc3 Bb3 Qe1+ Qe3 Rd8 Nf4 Bd7 Rh3 e6 Nd4 Beb4 Be2 e7 Bbc4 Be6 Nb5 e8Q Ng6 Bh2 Qf4 Be7 Rhg3 Rb1 c1Q+ Ka1 Rf8 Qd2 Qc2 Rf1 Bd4 Qc1 Nf6 Ra8 Bg4 Rc8 Qe2 Kb1 Rf3 Be1 Rh8 Qf8 Bc3 Qg7 Rd8 Qg8 Rf8 Rc7 Ra8 Rc8 Qd1 Rf8 Re8 Bc8 Qe2 Be6 Qc2+
r5b1/q1pk4/K3np1Q/1rP1QR2/6pQ/nNq1B1RR/1N1nRPr1/1b5b w - - 1 2 illegal: No possible last move, all moves rejected
3bn3/1R2q3/1Nq1kPn1/prB3qR/rnpR3b/P3pR2/3KQQb1/2N2N2 w - - 0 1 illegal: No possible last move, all moves rejected
1N3rQ1/B2R1bK1/4kb1p/b1n3Q1/P1rqBp1n/5qpP/Q1n3r1/2NB2B1 w - - 0 1 illegal: No possible last move, all moves rejected
2r3RQ/4k3/1q3rp1/1bN3q1/1bqn1pR1/QN1pnKP1/1PB1rb1Q/1R4Q1 w - - 0 1 illegal: No extended proof kernel
1R1n1R2/4r2k/Bb1ppQ1q/2b5/rqpNbK2/2PQP2N/1q4Rr/1N1R2n1 w - - 0 2 legal: proof: d4 f5 g4 fxg4 b3 h5 d5 h4 Bf4 Nf6 Bg3 hxg3 a4 b5 axb5 Ne4 d6 Nxd6 Qd4 Ne4 Qd1 Nd2 h4 Kf7 f4 Kg6 b4 a5 c3 c5 f5+ Kh7 b6 g5 f6 e6 h5 a4 h6 g2 Kf2 a3 Ke3 a2 b5 g3 f7 c4 b7 g4 b6 Qg5+ Kd4 Nf3+ Ke4 Ra4 Qd5 Nc6 b8Q Bc5 f8R d6 b7 Nd8 Nh3 g1R Qd3 g2 Rh2 g3 Qa8 Qd2 b8N Bb7+ Nc6 Qb2 Qa7 Qb4 Qa5 Bb6 Qg5 Rh1 Qh4 g1Q Rg2 Rh2 Qf6 Rg8 Kf4+ Rg6 Ne7 Qh1 Nc6 Ng1 Nd4 Bc5 Rf2 Ba8 Bg2 Be4 Bf3 Rg7 Rg2 Bf5 Bb7 Re7 Ba6 Be4 Nd2 Bb6 Rd1 a1Q Nb1 Qab2 Qe5 Kg6 h7 Kh6 h8R+ Kg6 Rf2 g2 Rhg8+ Kh7 Qf6 Nc6 Rb8 Nd8 Rg4 Nf3 Rg8 g1B Rfg2 Bf2 Rf8 Ng1 Nf5 Bfc5 e3 Qe2 Nd4 Qeb2 Rf2 Qg2 Re2 Qg6 Rg2 Qh6+
b1R1Q1R1/n5p1/3Nnk1r/1BN4r/1Pp2N2/R1bqQ1PR/2q1p2K/2rnb3 w - - 0 1 illegal: No extended proof kernel
3R2N1/R1NQp1kb/Qb3r2/1N1n1B2/P2p1p1r/r2nPq1q/qb3R2/3N2K1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 g5 fxg5 h6 g6 Qa5 g7 Qd8 g4 Qb6 g5 Qc7 g6 Qd8 Bg5 hxg5 Kf2 b5 h4 d5 c4 f5 c5 b3 a3 b2 c6 b4 h5 d3 c7 g4 h6 f4 h7 d2 Bh3 g3+ Kf1 b3 Nf3 g2+ Kf2 g1B+ Kg2 Nf6 g8R Bb6 e3 Nc6 Bg4 Ne5 Nd4 Nd3 Ne6 Qd7 Nc3 b1Q Rf1 b2 Kg1 Qa2 Rf2 b1R Bf5 Ba6 Qf1 d1Q c8N Qf3 Nd1 Rc1 Na7 Rc6 Qh3 Bb5 Qg4 Ba4 Nb5 Bc2 Rb1 Ra6 a4 Rc3 Qh3 Ra3 Rc1 Bb1 Rc7 Bc2 Ra7 Bb1 Rg7 Qc8 Rf7 Bg7 Qf1 Nh5 Qe2 Bb2 g7 d4 g8N Nf6 Rg7 Bc2 Nec7+ Kf8 Rg6 Nd5 Rd6 Kg7 Rd8 Ne1 Qc4 Nd3 Qc6 Qe6 Qe8 Qh6 Qd7 Qhh3 Nf6 Rf8 Ng8 Rf6 h8Q+ Kf7 Qh5+ Kg7 Qhe8 Rh6 Qc6 Rh4 Qed7 Nc5 Be6 Bh7 Bf5 Nd3 Qa8 Bc5 Qb7 Rf6 Qa6 Bb6
1r2q3/N7/NpK1pR2/Q2n2qQ/N4Bb1/r2Qq1rn/pP1NP2k/3R2bn w - - 0 2 legal: proof: c4 f5 a4 h5 g4 hxg4 a5 d5 cxd5 g3 a6 Nxa6 Ra4 Nb4 Ra1 Na2 Bh3 g2 Bg4 fxg4 h4 Kf7 d4 Kf6 Kd2 Kf5 Kd3 a5 Kc4 c5 Kb5 g5 f4 a4 h5 g3 d6 Kg4 d5 c4 h6 a3 f5 b6 f6 c3 f7 c2 d7 Qe8 h7 Nb4 d6 a2 Nc3 Ra3 Nh3 g1Q Bf4 c1Q Qd5 g2 Na4 Qce3 Rd1 Nd3 Kc6 Nf6 Qa5 Nf2 Rh2 Bh6 f8N Nh1 Ne6 Nd5 Nc7 Bg7 Na6 Bd4 Rd2 Rf8 h8Q Bc5 Qh6 Qc1 Qh8 g1R Rd1 Rg3 Rf2 Qcd2 Qe5 Kh4 Rf3 g4 Nf2 Qc1 Ne4 Kh3 Nd2 Kh2 Bh6 Qg5 Rf6 Qc3 Qf5 Qd3 Qg6 Bg1 Qh7 Qde3 Qh8 Qeg6 d8N Qe8+ d7 Rg8 Kb5 Rf8 Nc6 Rg8 d8Q Bf5 Rg6 e6 Rf6 Nc3+ Kc4 Qeg6 Bf8+ Rh3 Qh6 g3 Rf1 g2 Bb4 Bg4 Qh5 Bf2 Na7 g1N Qd3 Rb8 Rd1 Nd5 Kb5 Qg8 Kc6 Qd8 Qhg6 Rg3 Qh5+ Nh3 Bd6 Bg1 Bf4 Qe8+
8/pqq1r2N/rpb1Knpq/2NQb1B1/BQ3b2/1r3P2/1Pn2Bk1/B4N1R w - - 0 1 illegal: Other
BR6/2nrR1P1/p3q1p1/bb1Q2b1/kp3nQ1/2Rqr2N/PKqn2N1/R4Q2 w - - 0 1 illegal: No extended proof kernel
2bNQ1b1/R5bp/1K1nP1p1/2QBNrpr/5Q1n/1NBq4/4kN1P/q1r3q1 w - - 0 1 legal: proof: d4 b5 g4 c5 b4 cxd4 a3 f6 g5 fxg5 a4 e5 Ra3 e4 Rd3 exd3 axb5 Qb6 Bh3 Qf6 Bf1 Qd8 Kd2 Ke7 e4 Kf6 c4 Ke5 f4+ Ke6 c5 d5 e5 Kf5 e6 Ke4 b6 a5 c6 a4 b7 a3 b5 a2 b6 a1Q f5 Nd7 b8Q Ra4 c7 Ne7 f6 Ng6 b7 Nde5 f7 Nh4 Bb2 g6 Qa7 Bg7 f8N Nf7 b8N Nd6 Nfd7 Rf8 Qc5 Rf5 Qdc1 Rb4 Nh3 Kf3 Nc6 Rc4 Kd1 d2 Nf2 Rb4 Kc2 d1R Bh3 Ke2 Nde5 d3+ Kc3 d2 Bg2 Rg1 Be4 d1B Nd2 Ba4 Nb3 Bb5 Qf4 Rc1+ Bc2 Qd7 Nd8 Re4 Rf1 d4+ Kb4 d3+ Bd4 Re3 Bc3 d2 Be4 d1Q Bd5 Rh3 Rh1 Ba4 Ka5 Qg1 Kb6 Qb5+ Ka7 Qd3 Kb6 Qe1 Rg1 Be8 Rg3 Bf7 Rg1 Ba6 c8Q Bg8 Q8c6 Bc8 Qe8 Qd4 Rg3 Qg1 Rd3 Qe3 Rd4 Qd3 Ra4 Nf3 Ra5 Rh5 Ra7 Nh4
nR1RBb1N/kbpQ3K/nq1pQ1r1/R1r5/1Q1qr1qP/2R5/2P3p1/N1n5 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Bg2 exd4 Bd2 g3 Bg5 f6 Bh3 fxg5 Bf1 g4 Kd2 a5 Kd3 g5 Ke4 a4 Kf5 a3 Kg6 g2 b4 a2 e4 g3 h4 g4 f4 d3 f5 d2 b6 Ke7 e5 Bg7 e6 Kd6 b7 Kc6 f6 Kb6 f7 Na6 f8R Rh5 b8Q+ Bb7 b5 Nf6 e7 Nd5 Nf3 g1Q e8Q g2 Rh3 g3 Qe6+ d6 Ne5 Qd4 Qdg4 g1R Nf7 d1Q Nh8 g2 Bd3 Re1 Nd2 Re4 Nb3 Qe2 Qbc8 Ka7 Qcd7 Qb8 Rd8 Nb6 Re3 Rf5 Kh7 Rc5 Bc4 Qed1 Rc3 Bf8 Qf4 Qf3 Be2 Qh3 Bh5 Qf3 Be8 Qg4 Rf1 a1N Qd2 Bc8 Rf5 Qb7 Qe1 Rb8 Qb1 Na8 Qb2 Qc6 Qa3 Bb7 Qb4 Rc8 b6+ Kb8 Na5 Nb3 Rd5 Nc1 Nb3 Qb5 Rg5 Bd5 b7 Qb6 Re5 Ka7 b8R Bb7 Na1 Ra5 Bg6 Be7 Rg8 Rf8 Rec5 Rf6 Rgd8 Bf8 Be8 Rg6 Rf5 Rc5 Rd5 Rc4 Ra5 Rc5
2rBQN1N/1p1R2r1/BK2p2n/p5nP/4PB2/b2Bbb2/bk1q4/b1r1Q2N w - - 0 1 illegal: No proof kernel
5BK1/p1Bk3N/nP5B/P2nr1bp/b3p1q1/N1r2QQb/N3Bn1n/2Rn4 w - - 0 1 legal: proof: h4 f5 e4 fxe4 c4 g5 a4 gxh4 b4 d5 cxd5 b5 Ra3 Ba6 Rc3 Bc8 Rc4 bxc4 Ke2 e5 Ke3 c5 g4 h5 f4 c3 d4 h3 b5 c4 d6 c2 d7+ Ke7 g5 c3 d5 h2 a5 Nf6 f5 Rh6 b6 Na6 g6 Kd6 g7 Be7 Ne2 Qg8 d8N Kd7 Bd2 c1N d6 c2 Nf7 Nd3 Nc1 Nf2 Na2 c1N Na3 Ncd3 Be2 Nb2 Ng5 Rb8 Rf1 h1B Nh7 Rg6 Qb3 Rg5 Rc1 Rb7 Qd5 Rc7 Qb3 Qe6 g8Q Bg2 Qd1 Bh3 Qh1 Bb7 Qf3 Bc6 Qg6 Ba4 Qg7 Ne8 f6 Qg4 f7 Nf6 f8B Rc3+ Bd3 Ke6 d7 Rf5 d8B Kd7 Bc7 Nd5+ Ke2 Nbd1 Bh6 e3 Qg8 Qf4 Qgg3 Bg5 Bc4 Ng4 Bd3 Nh2 Bc4 Qg4 Bb5+ Rc6 Kd3 e4+ Kd4 e2 Bd3 e1N Be2 Rff6 Ke5 Rc3 Ra1 Rfc6 Rb1 R6c5 Rc1 Kc8 Kd6 Rb5 Ke5 Nd3+ Kd6 N3f2 Ke5 Ndb4+ Kd6 Rf5 Ke6 Re5+ Kf7 Kd7 Kg8 Nd5
1rrQB2B/1r1b1Nb1/2QRp3/3PB3/1B2RQ1b/rpn1r3/4P1pK/3kn1q1 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 Nc3 f6 Ne4 fxg5 Ng3 hxg3 Qc2 g4 Qa4+ Bd7 Qd1 Bc8 a4 Kd7 h4 Kd6 d4 b5 f4 c5 a5 g5 f5 g2 Kf2 e6 Kg3 c4 f6 c3 h5 c2 f7 b3 h6 b2 a6 b1R a7 b4 h7 Bg7 f8B+ Ne7 Rh4 Nc6 Bd2 c1R Kh2 g3+ Kh3 Bd7 Qc2 Qb6 Ra2 Ne5 Ra1 Nd3 Ra6 Ne1 Qa4 Rcc8 Nf3 g1B Qa5 g2 Re4 Bf2 Qa4 g1R Kh2 g4 Bc3 Bh4 Ng5 Rg3 Bg2 Re3 Bf3 Rab8 a8Q b3 Bg2 Ra1 Bh1 Rg8 h8B Rb7 Bb2 Ra3 Nf7+ Kc7 Bc3 Qc5 Rd6 g3+ Kg1 Qb6 Bf3 g2 Kh2 Qc5 Bh5 Rcb8 Qb4 Qa7 Ra6 Qb6 d6+ Kc6 Ba1 Kd5 Qa4 Bb5 d7 Qc5 d8Q+ Bd7 Qc6+ Kc4 Bc3 Rc8 Qb8 Nd5 Qf4 Rcb8 Bb4 Nc3 Bd6 Re8 Be5 Rf8 Qdf6 Rfc8 Qd8 Nd5 Qd6 Rf3 Nh6 Qa7 Be8 Rd3 Bc5 Kc3 Bb4+ Kc2 Nf7 Nc3 d5 Kd1 Q6c7 Qf2 Rd6 Re3 Qc6 Qg1+
R7/bQp2r1r/2KBBr2/5rr1/3n3k/Qb1Np2B/p1PQnRqP/5B1b w - - 0 1 legal: proof: e4 b5 d4 e5 g4 h5 a4 hxg4 Nc3 bxa4 dxe5 f5 e6 Qe7 e5 Qd8 Ne4 fxe4 Kd2 Ke7 Ke3 g5 Kd4 a5 Kd5 g3 f4 g4 b4 e3 b5 a3 f5 a4 b6 g2 b7 a2 Bd2 a3 Bd3 g3 Bf1 Nc6 b8Q Nd4 Qe1 Ne2 Qeb1 Ra5+ Q8b5 Nf6+ Kc5 d5 Qd1 d4 Qc1 d3 Be1 d2 Nh3 d1B Rg1 Nd7+ Kc6 Rh7 Rb1 a1R Nf2 a2 Rh1 g1R Nd3 g2 Bg3 Qe8 Qd5 Qg6 Qd2 Ba6 Bf4 Bc4 Rb8 Bb3 Ra8 Nc3 Be2 Rc1 Qb5 Rf1 Qb7 g1R Bg4 Qg5 Bh3 Rg3 Rg1 Bg4 Rg2 Ne2 Ra7 Rd5 Ra5 Bf3 f6+ Ke8 e7 Kf7 e6+ Kg6 f7 Kh5 Be5 Kh4 Ra8 Rf2 Bf5 Bg7 f8Q Rcf1 Bh3 Be4 Bf4 Bd4 Be5 Ba7 Bf4 Rg1 Be5 Rff3 Rf2 Rff7 Bf1 Rg4 e8B Rgf4 Qa3 Bh1 e7 R4f6+ Bd6 Rg2 Qc8 Rdf5 Qb7 Rf8 Bf7 Ne5+ Kb5 Rg1 Be6 Nf3+ Kc6 R8f7 Bh3 Qg8 Bf1 Rb5 Beh3 Rbf5 e8B Qg4 Bd7 Rg3 Bhg2 Qh3 Bc8 Rgg5 Be6 Qg3 Bh3 Qg4 Nb2 Qg2 Nd3 Nfd4#
1Q1N1rQQ/n3B3/1PR1pp2/bK6/2p2q2/1BPR1rr1/nnb2r1Q/3B1k1b w - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 Nc3 h6 Nd5 h5 axb5 gxf4 g5 Bg7 Ne3 Bf8 Ng4 hxg4 Ke2 Kd7 d4 Ke6 h4 Kd5 b4 Kc4 h5 a5 h6 c5 d5 a4 g6 e6 h7 a3 g7 g3 d6 g2 d7 a2 c3 f6 b6 e3 b7 f3+ Ke1+ e2 Kd2 f2 b5 Qc7 d8Q Nc6 b8Q Nge7 g8B Bb7 b6 Qf4+ Kc2 Nb4+ Kb2 Nc8 Nh3 g1R Bf7 Rg3 Ng5 Be4 Rh3 Bh1 Bg2 e1N Q1d6 f1B Bd5+ Kd3 Kb3 Ke2 Ba3 Ned3 Rd1 a1R Bh5+ Rf3 Bg4 Nb2 Nf7 Rg8 h8Q Ra2 Rh5 Bfg2 Rd3 Kf1 Qe8 Rg7 Nd8 Be7 Rh4 Rg6 Bh5 Rgg3 Qeg8 Bh3 Bc4 Bf5 Rg4 Be4 Rg7 Bf8 Rc7 Qc1 Be8 Rg6 Ba4 Ne7 Rd2+ N2d3 Qdh2 Rgg3 Nf7 Rc2 Qe8 Na2 Bd5 Nb2 Rc6 Bh7 Rd4 Rcf2 Bb4 Bb1 Rd3 Qf4 Ka3 Rb8 Bd1 Bc2 Bb3 c4 Qd8 Rc8 Qd6 Re8 Qb8 Nc8 Nd8 Be7 Bd6 Rf8 Bc5 Nc1 Kb4 Na2+ Ka5 Bd6 Ba3 Bb4+ Kb5 Ba5 Be7 Na7+
2Q5/RK2B3/4pnQ1/R1R3p1/Qr1n1Rrp/1qPb1n2/rn4Pb/3kNNb1 w - - 0 1 illegal: No proof kernel
1qrk1b2/nQ1pnpr1/Qb5K/2Qb1p1r/2QPNP2/1NBB4/R2nB2b/8 w - - 1 2 legal: proof: b4 b5 a4 h5 g4 hxg4 axb5 c5 Ra3 cxb4 Rf3 e6 Rf5 exf5 d4 a5 Kd2 g5 Ke3 b3 h4 b2 c4 a4 h5 g3 h6 g2 h7 g4 Kf4 a3 e4 a2 e5 a1B c5 g3 e6 Bg7 b6 Ra5 c6 Ra6 b7 Ra5 c7 Rc5 Qb3 Nf6 Kg5 Rc3 f4 Na6 b8Q Bf8 Be2 Nb4 Nf3 g1B Qb7 g2 Nfd2 Bh2 Qc4 Nc6 Ne4 Na7 Nbd2 b1N Nb3 Nd2 Bb2 Nd5+ Kh5 Rg8 h8Q g1R Qh6 Rcg3 Bc3 R3g7 Qg6 Rc1 Kh6 Ne7 Rg1 Bb2 Rg2 Ba3 Bd3 Bc5 Re2 Nb1 Ra2 Nd2 Qf6 Rc2 Qe5 Bb6 Qec5 Rc1 Qba6 Bb7 c8B Bd5 Bb7 Nb1 Bc6 Qb8 Bb5 Nd2 Be2 Nec6 Bd3 Kd8 e7+ Kc7 e8Q Rg5+ Kh7 R8g7+ Kh6 Rc2 Qe6 Kd8 Be2 Ne7 Q4b4 Bc7 Bbd3 Ba5 Qbb7 Bc7 Bb2 Rc4 Bc3 Bb6 Qca3 Rc6 Qc5 Rc8 Qec6 Rg2 Qc6b5 R2g5 Qbc4 Rh5+
2Rn1N1B/4pQK1/BpQ1R1q1/pPPbr3/R1Qb3Q/5qb1/2b1n3/br1k4 w - - 0 1 illegal: No proof kernel
4KnNR/B1Q1p1n1/p3P3/PrNN3p/1q4Nn/1nQ2bRR/2q2b2/2k2n1r w - - 1 2 legal: proof: e4 c5 c4 f5 h4 g5 e5 gxh4 Bd3 d6 Be4 fxe4 b4 d5 bxc5 dxc4 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 Kd4 f4 Kd3 a4 b5 g4 a6 c6 b4 f5 c3 c7 e3 a5 h3 e6 b3 f6 e2 f7 e1N Qf3+ Kc2 d4 h2 d5 b2 d6 Bb7 c8Q Qc7 d7 Bg7 d8R Ng2 f8N Nd7 Ra3 Nh4 Nh3 Rb8 Be3 Bd4 Nf2 Nh6 Kh5 Qc5+ g5 Qb4 g6 N6f5 g7 h6 Qf4 Bf3+ Ng4 Rb5 g8N Ba7 Rg1 h1N Rg3 Bb6 Bg1 Bf2 Qfc7 Kc1 Rh3 c2 Nc3 b1N Nd5 Nd2 Qc3 Nb3 Q8c7 Ne5 Rg3 Neg6 Nd7 Nf8 Rh3 Kd1 Re8 c1Q Nc5 Qc2 Rg3 Kc1 Rc8 Ng2 Rb8 Nd7 Kg6 Nf8+ Kf7 Ngh4 Rh3 Nhg3 Ke8 Nf1 Nd7 Be1 Ba7 Bf2 Nc5 h5 N8f6 Rg8 Rc8 Rg7 Ng8 Rg6 N4h6 Rg2 Ng4 Rh2 N8h6 Nd7 Qc4 Na1 Kf7 Bh1 Rh8 Nf8 Rag3 Bf3 Qc3 Nb3 Ke8 Rh1 Ng8 Ng7+
Q1nQnq2/RN1p1p1n/pr4B1/1b1Pq1Q1/R4B1B/1P6/nK2B2b/3r2nk w - - 0 1 legal: proof: f4 b5 h4 g5 b3 gxh4 f5 b4 f6 exf6 Rh2 f5 Rh1 f4 Nc3 c5 Na4 c4 Nb2 c3 a3 cxb2 axb4 Na6 b5 Nb8 c4 Ke7 e4 Kf6 d4 Kg5 Kd2 b1N+ Kc2 h5 g4 h3 b6 Kh4 e5 Kg3 c5 f3 e6 h4 c6 h2 c7 f2 b7 h3 e7 Nc6 b8B Nc3 e8Q Rh6 d5 Ba6 c8B+ Bd6 g5 Nf6 g6 Na2 g7 Ne7 Ba3 Nh7 Qd4 Bb5 Bc4 Kg2 Nf3 f1Q Qd2+ Qe2 Ba6 Nc8 g8Q+ Bg3 Kb1 Rb6 Qdg5 Qe5 Nd2 Qde7 Rd1 h1N Bd3 h2 Qd8 Qf8 Be7 Nf2 Bg6 h1N Nc4 Ng4 Rd4 Ngf6 Kb2 Nf2 Nd6 Nh3 Nb7 Ng1 Bbd6 Ne8 Bf6 Qe3 Ra4 Kh1 Bf4 Bh2 Be7 Bc6 Be2 Bb5 Bb4 Qee7 Be1 Qe4 Bh4 a6 Rc1 Rb8 Rc7 Rc6 Nc5 Rbb6 Ra7 Qe6 Nb7 Rc1 Qh8 Rd1 Qg8 Ncd6 Qa8 Nc8 Qh8 Qee7 Qhf6 Qd6 Qd8 Qe5+
r1n1R1Q1/bR1p2b1/B2pBB1q/2p5/2nPN3/k1P2n1K/2nQ1R2/qr1B3n w - - 0 2 legal: proof: g4 a5 b4 axb4 Nc3 f5 Ne4 fxg4 Nd6+ exd6 h3 g5 Bb2 g3 Rc1 b6 Ba1 g2 Bc3 g4 Ra1 g3 Bb2 Bb7 Ba3 Bf3 Bc1 Bg4 hxg4 Ra5 Nf3 Ra3 Ng1 Ra8 e4 Ke7 f4 h5 a4 c6 c3 b3 g5 b2 a5 b1N a6 h4 a7 h3 f5 h2 f6+ Ke6 f7 b5 e5 Kd5 e6 b4 e7 b3 e8R b2 g6 Na3 g7 b1Q Ne2 Kc4 Ra2 Ne7 g8B Bg7 f8Q+ Kb5 d3 g1N Bg5 g2 Kf2 Nc4 Kg3 Nc8 Be6 Qa1 Bf6 Na6 Qd2 Nb4 Qg8 Nc2 Kg4 Nf3 Ng3 g1B Ne4 Rb8 a8B Ba7 d4 c5 Be2 Qe7 Bd1 Qf8 Bb7 Ra8 Rf1 h1N Rb2+ Ka4 Rf2 Ka3 Ba6 Rh6 Rb4 Rg6+ Kh3 Rg1 Rb7 Rf1 Be2 Rc1 Bd1 Rb1 Be5 Qf4 Bf6 Qh6+
3nb2q/rBp1n1k1/1r4N1/Qp4P1/2BK1p1B/1RP2Nr1/rN3q2/bN1Q3r w - - 0 1 legal: proof: b4 e5 a4 a5 f4 axb4 g4 g5 d4 h6 dxe5 gxf4 g5 h5 Ra3 Be7 Rg3 Bf8 Rg4 hxg4 Kf2 b5 e4 d5 h4 f5 a5 Kf7 e6+ Kg7 e7 d4 e8Q d3 h5 b3 e5 f3 Ke3 f2 e6 g3 e7 g2 a6 b2 a7 d2 Rh3 Bd7 Nf3 g1R Kd4 f4 Bc4 Rh6 Rg3 Rb6 h6+ Kh8 h7 f1Q Rh3 Kg7 h8N Rg3 Ng6 Qc8 Qd8 Be8 Qe1 d1R+ Bd2 Rc1 Be3 Qf2 Qa5 Rh1 Qd5 Bf7 e8B Rh2 Bc6 Be8 Bb7 Ne7 Qd7 Qe2 Bf2 Nc6+ Kc3 Nd8 Qd1 Rh1 Be1 Qf2 Kd3 Rb8 a8N Ra6 Nb6 Ra7 Na4 Rh2 Nd2 b1R Nb2 Rh1 Ke4 Ra1 Nb1 Ra2 Ke5 Qf1 Kd4 Qe2 Be4 Rb6 Bb7 Qf1 Rh2 Qch3 Re2 Qh8 Re3 Rg4 Bh4 Rg3 Rb3 Qf2+ Ke4 Nf5 Kd3 Ba3 c3 Ne7 Na4 Bb2 Ke4 Qg2 Kd4 Ba1 Nb2 Qf2+
1R1n4/r5pQ/1P1Qr1p1/4N1qN/Kn1N3k/1N4p1/1bB1bqPn/QnrR4 w - - 0 1 illegal: No proof kernel
1q1n1NB1/4RP2/QQ1QNn2/3b1KN1/r1q1Qpp1/2r1rP2/5p2/n3bkBn w - - 0 1 illegal: No proof kernel
5R1n/1K2pRr1/PN1Qb1b1/Q3pq2/pb2P3/2q2BN1/n1kNR3/2r1Rqq1 w - - 0 1 illegal: No proof kernel
qn2k1b1/1Q5b/3r1QN1/N1Q2R1r/r4NPq/RBKrpQ1p/p3P3/2b3n1 w - - 0 1 legal: proof: d4 f5 g4 g5 a4 c5 h4 cxd4 f3 gxh4 Bf4 b5 Bg3 f4 axb5 fxg3 Kd2 a5 b4 e5 c4 h5 b6 d5 b7 a4 b5 h3 c5 e4 f4 g2 c6 h2 f5 d3 f6 d4 c7 e3+ Kc1 d2+ Kb2 a3+ Kc2 d3+ Kc3 h4 b6 Rh5 Nh3 g1Q Bg2 Nh6 Qf1 d1R Nd2 Qf2 Bd5 Nf7 Bb3 Ne5 Nc4 d2 Na5 Bf5 c8Q Bh7 Qc5 Nf3 Nf4 h3 Rg1 h1B f7+ Kd7 Rg2 Qfh4 Rf2 Ng1 Ra2 Bd6 f8N+ Ke8 N8g6 Bd5 Qg2 Ra6 Qf3 Bdg8 Rf1 Ra1 Rf2 d1R Rf1 Nc6 b8Q Rd4 Qc7 Qa8 b7 Nb8 Qg7 Ra4 Qgd4 Rd1 Qf6 Rdd5 Rd2 a2 Rd3 Be7 Rf2 Rd8 Rf1 Rad6 Rf2 Nc6 b8Q Bf8 Qb7 Nb8 Rf1 Rb6 Qcc8 Ba3 Qc5 Bc1 Qf2 Nc6 Kc2 Bd2 Bd5 Qb8 Ng2 Qa7 Ra3 Rd7 Bb3 Bc1 Kc3 Qa8 Qg3 Rd1 Rf5 Nb8 N2f4 Rbd6 Qgf3 R1d3+
qq2RBR1/b2P4/b1Qppq1r/1K1PrRq1/1N1B1b1p/6Q1/2Bk4/1Bn4n w - - 0 1 illegal: No proof kernel
R1n1b2K/q2n1r2/RRr1NQP1/qN3Rn1/3p1p1N/3P4/1b1q3p/Q2B2kq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ba3 exf4 axb5 c5 b6 Nh6 b5 Ng8 Bb4 cxb4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kd4 g4 a5 e4 h5 c4 f3 g5 d5+ Kf4 f5 b7 a4 g6 h3 b6 h2 d3 b3 e5 b2 c5 a3 e6 f2 c6 h4 e7 a2 Kg5 Ke3 c7 d4 Qc2 f4 Qc6 h3 Qa4 Ra7 Nf3 Bd7 c8R Be8 Nh4 Nd7 Na3 b1N b8Q Nd2 b7 Qa5+ Nb5 Nf3+ Kf5 Ng5 Be2 f1Q Bd1 Kf2 Qd6 Qe2 b8R Rc7 Qf6 Rh7 Rb6 Rf7 Ra8 Rc6 Re1 Qed2 Re5 h1Q Rc5 h2 Qa3 Rg7 Qa4 Bf7 e8N Kg1 Nec7 Be8 Ne6 Rf7 Rd5 Ba3 Re5 Nh3 Raa6 Bb2 Qa3 Nf2 Kg5 Ne7 Kh6 Ne4 Rf5 Nc8 Qa4 Rf8 Kh7 Rf7+ Kh8 Ng5 Ra8 Qac3 Rc1 a1Q Qa6 Qaa3 Ra1 Qd6 Qa2 Qc7 Qb1 Qb8 R1a6 Qa7 Qa1 Qa5
nr6/1p1pNQ2/1P1B4/1rb3Q1/b1rp3K/q2RQ1RP/kb2NR1q/1r3n1R w - - 0 1 illegal: No proof kernel forced: wxLB
b2K1b2/2Rq2q1/1B2Pr1N/4Q1Q1/3n1bQr/1pp1n2N/1PB2p2/1nQN1n1k w - - 0 1 illegal: No proof kernel
2QK2bk/N1p3r1/b1nB2n1/5rPp/3q1Rr1/5qbP/B1Qb1p2/N2BBN2 w - - 0 1 legal: proof: f4 e5 c4 b5 b4 g5 a4 d5 axb5 dxc4 Ra4 g4 Ra3 exf4 Rf3 gxf3 Kf2 h5 g4 f5 e4 Kf7 d4 Kg7 e5 a5 d5 a4 b6 c3 e6 c2 b5 a3 e7 a2 e8B a1B g5 Kh7 b7 Bag7 b6 Bb2 h3 Ra7 d6 Ra1 d7 Nc6 b8N Ra2 b7 Bc3 Bc4 Na7 Nd2 Bd6 Nf1 Bd2 Ne2 Ne7 Nd4 Ra5 Nbc6 Ng6 b8Q Ba6 Nb3 Rg8 Na1 Kh8 Qc8 Rg7 Ba2 Qf6 Ba3 c1R d8B Rc4 Bb4 Re4 Be7 Qd4+ Ne3 Bc4 Qc2 Bg8 Rf1 Be5 Bed6 Rb5 Kg1 f2+ Kg2 Rc5 Kf3 Rd5 Rg1 f1B Rg4 Ba6 Nf1 Rc5 Bef7 Ra5 Bfb3 Rb5 Kg2 Rd5 Kh2 f3+ Rf4 f2 Kg3 Ra5 Qc4 Rc5 Bd1 Rd5 Kf3 Rb5 Qc2 Rd5 Rh4 Rg4 Ba5 f4 Bc3 Qb6 Ke4 f3+ Kf5 Bg3+ Kf6 Re5 Bcb4 Qd4 Bc3 Bdf4 Be1 Bd2 Bf7 Rc5+ Ke6 Rf5 Kd7 Rf6 Kd8 Rf5 Nh2 f1Q Ba2 Qg2 Nf1 f2 Bb1 Re4 Ba2 Qf3 Rf4 Qb3 Rf3 Rg4 Rf4 Qf3 Qd7 Nc8 Na7 Nce7 Qc8 Nc6+
3R1q1b/PR2p3/1nNbk3/8/K3bppq/N2b3Q/nR1Q1NP1/nrr1BR2 w - - 0 1 illegal: No proof kernel
3Q1q2/n2rR1n1/1QBRK3/1b2Np2/b1Bqb3/4pPrp/Pb1q1k1B/BQ6 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 d5 Rh3 dxe4 Na3 b3 Nb5 c6 Rh5 cxb5 Rh1 b4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 f5 g4 h5 c3 b5 f3 e5+ Ke3 b2 g6 b1Q g7 h4 g5 b3 g6 h3 Bb2 b4 Bb5 Ra7 Ne2 Nc6 Re1 Bd7 Nc1 Nf6 Nd3 Nh5 Re2 Qc2 Qb1 Qd1 Ba4 Kc4 d5 Rg8 d6 Rc7 Re1 Na7 Bc6 Be7 Re2 Bf6 Rd2 Be8 d7 Qc8 d8B Rd7 Bc7 Qa8 Ba3 b2 Bb8 b3 Be7 Rf8 g8Q+ Rf7 Qh8 Rg7 Qh6 Rg8 Bc7 Ng7 Bc5 Qb8 Bd4 Qb4 Bb8 Qf8 Bd6 Ne6 g7 Qg1+ Ke2 e3 Rd1 e4 Bh2 Qg3 Qg6 Qgd6 Bde5 Qd4 Re1 Rh8 g8B Rh4 Qg1 Rg4 Rd1 Bh8 Bg7 Rg3 Ne5+ Kc5 Bf6 Ng7 c4 Qdd6 Re1 Kd4 c5 Qd5 Bf7 Qdd6 Bc4 Qd5 Qc2 b1B Qc1 Bc2 Qb1 b2 Qf2 Ba4 Rd1+ Kc3 Rd4 Qdf7 Rd6 Bb5 Bd5 Kd4 c6 Q7e7 c7 Qd8 c8Q Qb6 Qd8 Qc5 Qbe1 b1B Qb4 Bc2 Re1 Bca4 Qg1 Bf7 Bc6+ Bd5 Qb3 Qb4 Kd1 Qc5 Kc2 Qb4 Qh1 e2 Kb2 Qd2+ Ka3 Qd3 Kb4 Ke3 Kc5 Kf2 Qb4 Qd2 Qba5 Qf4 Qab6 Qg4 Nf7 Qf4 Ba1 Qh4 Ne5 e3 Rd1 e1Q Rd2+ Qe2 Qb1 Be4 Kd4 Bd3+ Kd5 Bdc2 Rd3 Qd2 Rd4 Bd3 Re4 Qf4 Ng6 Qg4 Re7 Be4+ Ke5 Nh5+ Ke6 Bb2 Ne5 Qgg7 Nf7 Qgd4 Ne5 Ng7+
NKN3q1/1Q3r1r/2n2qBB/nbp1R2n/1kP1pBb1/r2Q4/p3Pr2/5N1B w - - 0 2 legal: proof: d4 h5 b4 b5 a4 bxa4 g4 hxg4 Bg5 f5 Bh6 e6 Bc1 c6 d5 Bd6 Ra3 Bc7 d6 f4 Rg3 fxg3 dxc7 Rh5 Qd4 Rh4 Qd1 Rh8 Kd2 Ke7 Ke3 a5 Kf4 g5+ Ke5 d5 c4 a3 h4 d4 f4 d3 b5 a4 f5 a2 h5 a1N b6 d2 b7 a3 h6 a2 h7 g2 Rh3 g3 Na3 g4 Rh2 Nf6 Nb5 Nb3 Nf3 g1R Rh5 g2 Nh2 g3 Qc2 d1B Bf4 Ra5 Qd3 Ra3 Nd6 Rf8 h8Q Rh1 Qg7+ Rf7 Bh6 g1Q Bg2 Bd7 c8B Na5 Nf1 Ba4 Bd5 Rh2 Bh1 g2 Bf4 Bb5 Rg5 Na6 b8N Nb4 Na6 Rh7 Nc7 Nh5 Na8 Qf2 Bb7 g1R Be4 Bc8 f6+ Kd7 Bg6 Rg2 Rf5 Qg8 Rg5 c5 Bf3 Rh2 Bh1 Qf3 Rf5 Kc6 Rg5 Bd7 Nc8 Rf2 Rf5 Kb7 Kd6 Ka6 Kc7 e5 Kb8 e4 Rg5 Bg4 Re5 Rc7 f7 Rd7 f8B Rf7 Bh6 Qf6 Bd2 Nb3 Bf4 Ka5 Qh8 Ka4 B8h6 Na5 Qg7 Qf5 Qf8 Qf6 Qe7 Nbc6+ Kc7 Nd8 Kb8 Kb4 Qb7 Ndc6+
1N2r1r1/NnNr4/R2p1Qp1/1Pqn1B1k/1B1P3p/2r1Q1nK/N3b3/2q1b1Q1 w - - 0 1 illegal: No proof kernel
2Q3qb/3Q1p2/2qRrQq1/1K1ppB2/3R2nQ/Bk1P1b2/1b1R3P/r1n2b1N w - - 0 1 illegal: No proof kernel
q6N/3bPpn1/R2Q1KQ1/2Q1r3/2rnpP1N/2kB1p2/3Nb2q/bq1qRQ2 w - - 0 1 illegal: No proof kernel
4R3/1QQ2r2/pq1q2Q1/p1bB1pr1/1b1q3N/Kn3NQr/P4PB1/k3n1Bq w - - 0 2 illegal: No possible last move, all moves rejected
R5r1/q2b1R1p/QKN1B3/1Bp1pP2/2b3B1/4Br1P/R1nb1nq1/Qq3qk1 w - - 0 1 illegal: No possible last move
rN6/2b1pn2/nb2Qbb1/1QB2Rq1/2BKn2Q/r1pPP1RQ/5p2/2k1qR2 w - - 0 1 legal: proof: f4 b5 g4 g5 c4 d5 a4 dxc4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 Kd7 b4 Kd6 h4 Ke5 h5 Ke4 g6 f5 h6 c5 g7 a5 b6 c3 b5 c2 b7 g3+ Ke1 a4 b6 c4 h7 f3 Ra3 f4 Rh6 g2 Kf2 Qd5 Qe1 Nf6 g8Q Bf5 Qg5 Na6 b8Q Bg6 b7 Bg7 Qh4 Qg5 Bb2 c1N Rb3 a3 Rb5 a2 Bd4 a1B Bc5 Be5 Qh3 Rc8 h8Q c3 Qg8 Rd8 Qge6 Rd4 Rb1 Ra4 Rh5 Ra3 Qe8 Bh8 b8R Bg7 Qb5 Bh8 Qeg4 Bc7 Rg8 Bg7 Qgh4 Bh8 Qd1 Bg7 Qdb3 Bh8 Ke1 f2+ Kd1 Nd3 Kc2 Bg7 Nf3 g1B Nd4 Ne5 Nc6 Bh8 Nb8 Bg7 Q4g3 f3 Qbe6 Bh8 Bg2 f1Q Qgh4+ Qf4 Bh1 Qe1 Rf5 Bd4 d3+ Ke3 Rd1 Ne4 Bg2 Bh7 Rg3 Qg5 Rb1 Bf6 Bh1 Ra5 Kb3 Kd2 e3 f2 Bf3 Bg6 Bg4 Nd7 Kc4 Ra3 Ra1 Ne5+ Kd5 Qe2 Rf1 Qe1 Bd1 Kc1 Bb3 Ng4 Bc4 Ne5 Bb4 Ba7 Bc5 Bab6 Kd4 Nf7+
BKR5/2QRp3/1B1Q2b1/nk4P1/4QR2/pN1pPnb1/1qrq4/q2qnrR1 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 d4 cxd4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 Kf2 f5 b4 a5 c4 d5 h4 Kd7 c5 f3 Kg3 f4+ Kf2 a4 b6 Kc6 h5 d3 h6 d2 h7 a3 b7 d4 Qc2 d1Q Rh4 Bf5 Bg2 Bg6 Be3 Nf6 Qe4+ Kb5 c6 Bg7 c7 Rf8 h8R Nd5 c8R Nc6 b8Q+ Qb6 Rb1 d3 Qc7 Be5 R8h6 Qa5 Bb6 Ne3 Bh1 Nc2 e3 Qc1 Ne2 Qb2 Rg1 Ne1 Rh8 Rf7 Rhd8 Bd6 Rd7 g3+ Kf1 f2 Nc1 Ra7 Nb3 Be5 Qd6 Rc7 Bg2 Qa7 Bf3 Na5 Rg4 Rc2 Bh1 Nf3 Kg2 Ne1+ Kh3 f3 Rf4 f1Q+ Kg4 f2 Bf3 g2 Qc7 Ka4 b5+ Nc4 Qd6 Qa5 Qc7 Qd2 Qd6 Rf8 Qc7 Bf7 Kf5 Bg6+ Ke6 Qfe2 Kd5 f1Q Kc6 Qed1 Kb7 Bd6 Kb8 Qda1 Bd4 Na5 b6 Kb5 b7 Qfe2 Bb6 Qed1 Ka7 Be5 b8Q Rf6 Qd6 Rf8 Qbc7 Rf5 Rh1 g1N Kb8 Rf6 Bg2 Ngf3 Rg1 Rf5 Rh4 Bg3 Rf4 Rf7 Qed4 Nh4 Ba8 Rf6 Qe4 Rf8 Rg4 Rf1 Rf4 Nhf3
n1Q1rQ2/pPQb3B/5r2/5pB1/1rb1q2K/1R2bBBp/kN1RrnbP/8 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Nd2 e4 Ndf3 exf3 Ra4 Qf6 Ra1 Qd8 Kf2 Ke7 g4 Kd6 c4 Kc5 e4 Kb4 c5 h5 c6 f5 e5 d5 b6 d3 b3 h4 b7 h3 e6 d2 e7 d4 e8B d3 g5 Na6 b8B Nc7 g6 Qd5 g7 Nf6 g8Q Rh6 Be2 Qe4 Rb1 Bd7 Qc2 d1R Bg6 d2 Bh7 Re1 Rb2 Ka3 b4 d1B b5 Bc5+ Be3 Rg6 b6 Bd4 Qc3+ Bb3 b7 Bb6 Rb1 Ka2 Qf8 Bc4 Rb3 Rb1 Bd1 Rh6 Ne2 Ng4+ Kf1 f2 Qc1 Nd5 c7 Rf6 c8Q Nc7 Rg1 Rb2 Rg2 Bc5 Bd2 Be3 Qc2 Nd5 Be5 Nb6 Qc7 Re8 Qc8 Bf7 Q2c7 Bc4 Bc1 Na8 Bd6 Ne5 Bd2 Nd3 Nc3+ Ka1 Na4 Ka2 Ke2 f1R Be5 Rc2 Nb2 Rf3 Bd6 Nf2+ Ke1 Rg3 Bf3 Rg4 Bc1 Nd1 Rd2 Nf2 Bg2 f3 Bg3 Nd3+ Kf1 f2 Bf3 Rh4 Ke2 f1B+ Kd1 Bg2 Ke2 Nc5+ Ke1 Bf4+ Kf2 Bg5 Bf4 Nd3+ Kg3 Nf2 Bd6 Be3 Bf4 Rhh6 Bg5 Rb6 Bf4 Rhf6 Kh4 Qe7 Bg3 Rb4 Rd1 Re2 Rdd3 Bb6 Bg5 Be3 Rd2 Qe4+
1n1rkBR1/b3p2r/P2Qq3/R1p3n1/Np1K2Q1/nPN5/R5Qr/1n2rbQ1 w - - 0 1 illegal: No possible last move, all moves rejected
2q2N1Q/1R3NpR/2Qn2K1/R4nB1/nr2Q1n1/1n1rpb2/4P1Pp/1Qqk3r w - - 0 1 illegal: No proof kernel forced: bxLB
q1k2B2/6Nr/q1B5/1RR5/qp1rppnn/3r2rR/2Q1PP1b/2Rq1KQQ w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 Bb2 axb4 Qd3 f5 Qd1 b6 Bc1 f4 Na3 h5 Nc4 Ba6 Ne3 Bb7 Ba3 Be4 Bc1 Bf5 gxf5 Qc7 Ng4 hxg4 Nf3 Qc8 Ng1 Qd8 h4 e5 c4 d5 a4 Kd7 a5 g5 c5 b3 c6+ Kc8 h5 e4 f6 b2 h6 b1Q f7 g3 h7 b5 a6 d3 a7 g4 c7 b4 Be3 g2 Bd2 d4 Nf3 g1R Nh4 g3 Ra6 g2 Be3 Be7 f8Q Qb3 Qc1 Nd7 Ra5 Ndf6 Nf3 Ng4 Qg7 Bh4 Qc2 Qa4 Rh3 Bg3 Rb5 N8h6 Ng5 Bh2 Ne6 Nf5 Qg6 Rb8 a8R Nh4 Ng7 Qd5 Raa5 Qa8 Rc5 Rd8 h8Q Rb7 Rab5 Q4a6 Re5 Rh1 Rg5 g1R Rgc5 Rg3 Qhh5 Rb6 Qgg5 Rh6 Qgg6 Rh7 Qhh6 Kd7 c8R Rhg1 Qgg5 Rf3 Qhh5 Rgg3 Bg2 d2+ Kf1 d3 Bd4 Qa4 Bf6 Re3 Be7 Q4a6 Bf8 Ref3 Qf6 Re3 Qa1 Ref3 Qe1 d1Q Qg5 d2 R8c6 Ra3 Bf3 Nf6 Bh5 Rad3 Bf7 Qda1 Bd5 d1Q Qh6 Q1a4 Qg5 Rge3 Qg1 Ng4 Qh1 Rg3 Rc8 Re8 R8c7+ Kd8 Bc6 Re7 Qg1 Red7 Ra7 Q4a5 Qh1 Q6b7 Ra6 Qd2 Ra7 Kc8 Qa1 Qe3 Ke1 R7d4 Qac1 Qa2 Ra3 Qb3 Ra1 Qba4 Q1b1 Qba6 Qbd1 Nf5 Rc1 Qd2+ Kf1 Rgf3 Kg2 Rfe3 Qdg1 Nh4+ Kf1 Rf3 Qb3 Rg3 Qc2 Qd1+
B1b4q/8/1BQ2K2/b1pqp1n1/1Qqp1N2/1RbQ3b/2PnPQq1/N1rk1B2 w - - 0 1 legal: proof: d4 c5 b4 a5 a4 axb4 g4 h5 d5 hxg4 Na3 f5 Rb1 b5 Ra1 Ra6 Nb1 Rc6 Ra3 f4 Rg3 fxg3 dxc6 Rh3 Bg2 Rh4 Bf1 Rh8 Kd2 Kf7 Ke3 Ke6 Kf4 d5 Kg5 Ke5 f4+ Ke4 h4 e5+ Kg6 b3 a5 b4 h5 g2 f5 b2 a6 b3 a7 g3 a8B Nf6 h6 Bd6 c7 Nbd7 h7 Nf8+ Kg5 Ne6+ Kg6 Ng5 Nh3 g1B Nd2+ Ke3 Bg2 b1B Ba3 b2 Rh2 Ba2 Qf1 b1Q Nb3 Qd1 Qe1 Nfe4 f6 Nd2 Bf1 g2 f7 Bf2 f8Q g1Q Na5 Qg4 Bg2 Qc4 Qf1 Be1 Nf4 Bh3 c8Q Bc7 Nb3 Ba5 Qf7 d4 Qc6 Qdd5 Qf5 Rb8 Na1 Rb1 h8Q Rc1 Qhf8 Bb3 Qce8 Ba4 Qf8f7 Bd7 Bb4 Bc8 Qc7 Nde4 Qcd7 Bc3 Qc6 Kd2 Qf2 Qh1 Bf1 Kd1 Qa4 Nd2 Qd3 Bhd7 Rg2 Qh8 Rg3 Bh3 Qec6 Ne6 Kf7 g5 Rf3 g4 Qab5 g3 Re3 Bd8 Ba5 g2 Bb6 g1Q Qb4 Qgg2 Rg3 Bc7 Ke7 Ng5 Re3 Qe8+ Kf6 Qeg8 Ba7 Ba5 Bb6 Qe8 Qh7 Bb2 Rb3 Bc3 Qd3 Qh8+
1N4Bn/5p2/B5rR/r4Pq1/rB1QppbK/bPN2Qnb/2p5/1nkB1Q2 w - - 0 1 illegal: No possible last move, all moves rejected
R4nQb/K2k3p/1pr3bR/1n1Np3/BRqQrP1P/B1B3R1/b4pn1/7r w - - 0 1 legal: proof: e4 a5 c4 f5 b4 axb4 f3 g5 Na3 g4 Nb5 d6 Nd4 d5 cxd5 fxe4 f4 Nf6 Ndf3 gxf3 Ba3 Ng8 Bb2 Bg7 Bc1 Bf8 Kf2 c5 Ke3 b3 d4 f2 g4 c4 a4 c3 d6 e6 d5 c2 Kd4 b2 Kc5 b1B a5 e5 a6 e3 a7 e2 g5 e1R g6 Qa5+ Bb5+ Nc6 g7 Kd8 Ne2 Qa4 Kb6 Qc4 d7 Nge7 g8R Nd4 Ba3 c1N Rg3 Bg7 Ba4 Ng6 Nc3 Nb5 Qd4 Ba2 Rb1 Nf8 Rb4 Re4 h3 Ke7 d8B+ Kd7 d6 Nd3 Nd5 Ne1 Bc7 Rb8 a8R Ng2 Bd8 Bf6 Be7 Rg8 Bb2 Rg7 Bc3 Rg6 Rh2 Bh8 Rh1 Ke6 d7 Rh6 d8Q Bd7 h4 Be8 Rg1 Bg6 Qe8 Rc8 Qf7+ Kd7 Qg8 Bh5+ Bd6 Re6 Rg6 Rf6 Rh6 Bg6 Rh1 Re6 Rh3 Rc5 Rg3 Rc7 Ka5 b6+ Ka6 Rc8 Rb2 Rf6 Ba3 Rcc6 Kb7 Rf5 Rb4 Rg5 Re3 Rg3 Kb8 Rh3 Rg3 Rh1 Kb7 Nc7 Ka7 Nb5+
4kBQb/1K1brpR1/1p3PnP/b1N3Np/2Qq3n/1NQ1p3/3qR1Q1/5r1r w - - 0 1 illegal: No proof kernel
5B2/4r2K/p1R2RPR/1p6/1QQ2prn/R2q1P1p/2NB1nbq/1bbk1Br1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 Ra4 gxh4 Ra5 Na6 Ra1 Nb8 b4 c6 b6 Na6 b5 Qd5 b7 Qd3 b6 Qd8 Na3 Nb8 Nb5 cxb5 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 g4 f5 c4 e5+ Kh5 f4 g5 a6 d3 Kc3 c5 e3 g6 e4 d4 e2 f3 e1Q c6 h3 c7 e3 d5 e2 d6 h2 d7 Qd2 Nh3 e1R Bd3 Nc6 b8Q Ne5 b7 Rg1 Qf1 Nh6 Nf2 Nf5 Ng4 Ra7 Ne3 Nh4 Nc2 Ba3 Kh6 Ng4+ Kg7 Qg2 Bd2+ Kb3 Qe2 Bc1 Ra3+ Kb2 Qe7 h5 Bf1 Nf2 Qa8 Kb1 b8B Bb7 c8R Be4 Rc6 Kb2 Ne3 Bb1 Bd6 Qg3 Qc8 Qh3 Nc4+ Kc2 Qe1 Rg4 Bf8 Rc7 Qe7 Kd1 Qb4 Rh7+ Kg8 Re7 Rf6 Re1 Kh7 Ra7 Nb6 Qg2 Qcc4 Rb7 Nd5 Qg3 Rg1 h1B Rg2 Qh3 Rh2 Bg2 Rh1 Qh2 Rc6 Qe8 Rf6 Qe4 Rc6 Rb6 d8R Qd3 Rdd6 Rb8 Rf6 Rbe8 Qa5 R8e5 Nb4 Reg5 Nc2 Re7+ Kh8 Bh3 Qac3 Rg1 Q3b4 R5g4 Kg8 Bg2 Qbb3 Nf5 Qbc3 h4 Q3b4 Qg3 Rh3 Qh2 Rg3 Rg5 Rg4 h3 Rh4 Rg4 Rh6 Nh4 Kh8 Re1 Kh7 Re7+
1B3B2/NrQ3Qp/r1qpRbnb/B4p1q/n2P4/K2Bp2n/4PNk1/1N5b w - - 0 2 legal: proof: f4 c5 a4 g5 b4 gxf4 h4 Nf6 b5 Ng4 Ra3 b6 Rb3 Nh2 a5 Bb7 Rb4 cxb4 h5 Bc8 h6 Bxh6 axb6 Bf8 g4 f5 c4 Kf7 b7 Kf6 c5 Kg5 d3 Kh4 Kd2 Kg3 Kc2 e5 Kb3 a5 c6 f3 g5 f2 c7 a4+ Ka2 d6 b6 e4 g6 e3 g7 b3+ Ka3 b2 g8N Ng4 Bd2 Nc6 b8B Bh6 b7 Ra6 Ba5 Ne7 Ba7 Qe8 b8B Bb7 c8Q Ng6 Ne7 Qc6 Bg2 f1Q Be4 Qf3 Nh3 Kg2 Bd4 Nf2 Qc7 Re8 Nc8 Re7 Na7 Rd7 Kb4 a3 Bg7 a2 Ka3 a1B Bf8 Rf7 Qa4 Ba8 Qd4 Bb7 Ng5 Nh3 Qg7 Re7 Bd5 Rf7 Bc4 Qh5 Ne4 Ba8 Qc8 Rb7 Nf2 Ng1 Rh4 Nh3 Qcc7 Qg5 Nc3 Qh5 Re4 b1N+ Ka2 Na3 Nb1 Nb5 Re6 Bf6 d4 Nc3+ Ka3 Na4 Bd3 Qc2 Qc3 Kg1 Nc8 Rbb6 Ng4 Bh1 Na7 Kg2 Nf2 Rb7 Qcc7 Qc6
1R1b2nr/1Q2QnP1/p3n1K1/RB2qRB1/Qp6/1P1b1p2/1rR1p1Nq/2q4k w - - 0 1 illegal: No proof kernel
1Rr4R/1q1rq3/1b2b2p/k4b1p/p1QBn1B1/1P3K1P/2q1p1RQ/nQ4RN w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 f5 Nc3 fxe4 Nce2 g6 Nf4 Qb6 Nh5 gxh5 Ra3 Qc7 Ra1 Qd8 Ke2 a5 c4 d5 f4 Kd7 g4 Kc7 g5 Kb6 g6 e5 f5 d3+ Kf2 d4 b3 d2 g7 a4 h3 d3 f6 e3+ Kg3 h6 f7 e4 c5+ Ka5 c6 e2 c7 e1Q+ Kf4 e3 b6 Bc5 f8R Qd5 b7 Ra7 Rh2 Be6 c8Q Na6 b8R Nb4 Be2 Bb6 Qcc2 Nf6 g8Q Ne4 Kf3 Rd7 Rg2 Qb7 Bb2 Qh4 Bd4 Qe7 Qc4 Nc2 Qb1 d1Q Qg3 d2 Qh2 Qc1 Rfg8 d1B Rgd8 Nb4 Rf8 Bc2 Bd1 Bd3 Ne2 Nc2 Ng3 Qd2 Nh1 Qc3 Ra2 Na1 Rg1 Rg8 Rag2 Qc2 Kf4 Rh8 Bg4 e2 Kf3 Rg8 Rf6 Rgd8 Rf8 Rc8 Rh8 Bf5 Qc6 Bc4 Qcc7 Bg8 Qc4 Bge6
2r1N3/3bKQp1/2Bq1PQ1/4bQBp/BpR5/1n5P/kpqn2rb/N5nB w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g3 axb4 g4 fxg4 a4 e5 d4 Bf5 d6 Na6 d5 Bc8 Ra3 Nb8 Rd3 Ne7 Rd2 Ng8 Rd4 exd4 Kd2 Kf7 Kd3 h5 Kc4 b5+ Kc5 c6 f4 d3 e4 d2 e5 b3 h3 b2 e6+ Kf6 e7 b4 e8B g3 f5 Ke5 f6 g2 a5 Ne7 d7 Qc7 d8Q Bf5 d6 Rh6 a6 Rg6 d7 Nd5+ Qe7+ Be6 d8Q Ne3 a7 Nc4 Qc2 d1Q Qd7 Nd2 Qcd3 Qc2+ Nc3 Qd8 Ne2 g1N Nd4 Rg2 Qc8 Qc7 Nb3 Qd6+ Kb6 c5+ Bc6 c4 Ne4 c3 Qf7 Bf5 Na1 Na6 Be2 Bd7 Bd1 Nc5 Qg3+ Kd4 Qgg6 Qb1 Ba4 c2 Kb5 Ncb3 Rh2 Qe7 Nd6 Kc3 Ne8 Qe6 Kb6 Bd6 Kb7 Be5 Rh1 Nf1 Bg5 c1B Rh2 Qd6 Kb6 Bg4 Qcf5 Rc8 a8B Bcf4 Bb7 Nfd2 Rh1 Ngf3 Rc1+ Qc2 Kb5 Ng1 Ba8 Rh2 Bh1 Rg2 Bc6 Bh2 Kb6 Na5 Kb5 Qb8+ Kc5 Nab3+ Kd5 Qc7 Ke6 Qb6 Ke7 Qa6 Qe4 Bd7 Qef5 Qd3 Qg8 Qd6+ Kf7 Nc5 Rf1 Qb1 Rf4 Qe4 Nb3 Kc2 Na1+ Kb1 Rh4 Qc2 Rc4 Ka2 Qf8 Qd4 Ke7 Ncb3 Qff7 Qd6+
5B2/Q2p1QN1/2bPqp2/bR4n1/R4PR1/n1rQ1rKb/r1pN1p1Q/2kq4 w - - 0 2 illegal: No possible last move, all moves rejected
K7/Np3nbr/q1N2Qn1/RPk4q/Q3pp2/4bQr1/QBNp1RP1/6rb w - - 0 1 illegal: No proof kernel
3Qb1k1/1R1r4/qq1pn3/1R3K2/1pNr3b/BQP1p3/pPQ3NQ/1qn1Nr2 w - - 0 1 illegal: No proof kernel
6Nq/1K4nb/R2pN1n1/2QQ1br1/pN2Prk1/2B3q1/PNB2ppQ/b2n4 w - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 b4 g6 Nd2 g5 bxc5 gxf4 g5 exd4 Rb1 Qa5 Rb3 Qc7 Rg3 Qd8 Rg4 hxg4 Kf2 Ke7 c4 Ke6 h4 Kf5 h5 b5 c6 a5 e3 d3 c5 f3 g6 a4 g7 b4 h6 b3 c7 b2 c6 b1B h7 Ne7 g8N Na6 Nh3 Nc5 Ng5 Ra5 Rh6 Bg7 Bb2 Ng6 Nc4 d2 Bc3 Ne6 Nb2 f6 Qb3 d1N+ Kg3 Re5 Qd5 f2 Bb5 Be4 Bd3 f1Q Bb1 Bd3 Bc2 Qe1+ Kg2 g3 Kf3 Bb7 c8N g2 Nb6 Bc8 c7 d6 Rh5 Bd7 c8Q Qh4 Qcc5 Be4+ Ke2 Kg4 Kd2 Bf5 e4 Be8 Kd3 Qg3+ Kc4 Qc8 Ne7 Rf8 h8Q Bf7 Kb5 Bg8 Qh6 Bh7 Ng8 Bh8 Ka5 Ng7 Ne6 Qe1 Rh3 Qb7 Qd3 Ne8 Nc7 Bd7 Bd2 f5 Nbd5 f4 Nc4 Qb2 Ka6 Qc3 Kb7 f3 Rh1 Rf4 Qh2 Rg5 Qdd4 Bf5 Ne6 Qg3 Qe5 Ne3 Rb1 f2 Rb6 Nh4 Ra6 Nd1 Nb4 Ng6 Qed5 Qg7+ Ne7 Qg8 Be1 Bb2 Bc3 Ba1 Nb2 Qh8 Ng8 Ng7
2n2n2/2kp4/q3BpK1/r5QP/2NB3N/pNRPb3/1p1bbqqr/1Q3B1B w - - 0 1 legal: proof: g4 e5 b4 h5 f4 hxg4 a4 exf4 a5 c5 Ra4 b6 axb6 Rh6 b5 Rh8 Rb4 cxb4 Kf2 a5 c4 g5 h4 f6 e4 f3 Ke3 f2 h5 a4 b7 g3 b6 g4 Kf4 g2 Kf5 b3 e5 g3 d3 b2 c5 a3 c6 Nh6+ Kg6 Bb4 e6 Nf7 c7 Ra5 e7 Bd2 Nf3 g1Q Nh4 Nc6 b8Q g2 b7 Na7 Qa8 Ng5 b8N Rh7 Nc6 Bb7 c8B Qb6 Ne5 Bf3 Qd5 Qa6 Bb7 Be2 Nc4 Nc8 Qe1 Rf7 Qf5 Nh7 Qg5 Qh2 Bd5 g1B Bdg2 Bc3 Be3 Bd2 Bd4 Qg3 Rh2 Rf8 Bh1 Qg2 Nc3 Rf7 Na4 Rf8 Nc5 Rg8+ Kf5 Rg7 Qb1 Rg8 Qf4 Rg3 Qg5 Rh3 Kg6 Bg4 Be2 f1Q Nb3 Qff2 Bf1 Bf3 Nc1 Be2 Nb3 Qgc6 Rg2 Rh2 Rg4 Qcg2 Re4 Bf3 Re1 Be2 Rc1 Qf4 Rc2 Bge3 Rc3 Qff2 Kh6 Kf7 e8B+ Ke7 Bf7 Kd8 Be6 Kc7 Kg6 Nf8+
1n2R1rB/qp1p2r1/8/1rn3Nk/2Rp1p1q/5PB1/qP1R2K1/QQbRb2B w - - 1 2 illegal: No proof kernel forced: wxLB
1r3qR1/NNpB4/1Nrn2r1/1R2pr1b/p1r2k1K/nQ1Q1pR1/N1Pb1P2/8 w - - 0 2 legal: proof: h4 b5 a4 d5 axb5 g5 e4 dxe4 d3 gxh4 Ke2 e3 Bd2 exd2 Kf3 Kd7 Kg4 Ke6 b4 Ke5+ Kg5 f5 g4 a5 b6 h5 b7 h3 b5 h2 b6 a4 Na3 f4 Qf3 d1R Ne2 h4 Nb5 h3 Na7 Rh6 Rg1 h1R Rb1 h2 Nc1 Nf6 Rg3 Rg1 Na2 h1R Bh3 Nbd7 b8N Ne8 b7 Rc6 Kh4 Bh6 g5 Nb6 g6 Bg4 g7 Nc4 g8R Na3 d4+ Kf5 d5 Rd4 d6 Rdc4 d7 Nd6 Rb4 Qf8 d8N e5 Nd7 Rb8 Rb5 Rh2 Qd5 f3 Nb6 Kf4 Qd1 Bh5 Qd3 Ra8 b8Q Rhg2 R3g6 Rg5 Bd7 Rf5 Rg3 Rg2 Nb7 Rg1 Qe8 Rb8 Qf7 Rg2 Rh3 Rg6 Rg3 Rd4 Qfb3 Rdc4 Qd1 Ke4 Qf1 Bd2 Qfd3+ Kf4
NBQ4n/Pqn2bb1/1pQ1pk2/Nn3p2/1P4n1/4np1K/2r3NR/3QR1rQ w - - 0 1 illegal: No proof kernel
KN1Q4/5p2/rN4k1/2N1r1P1/Bq1nR3/2Bp1PpB/bbnnpn1N/1Q5n w - - 0 1 illegal: No possible last move, all moves rejected
4bR1R/Bnb1kN2/p1rpB2Q/1p6/3P3R/b2r2Pp/2QBrqr1/K2n1R2 w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 b4 c6 b6 Ba6 b5 Bg7 Nc3 Bc8 b7 Bh6 b6 Bf8 Nb5 cxb5 f4 e5 d4 h5 Kd2 a6 Kc3 e3 Kb2 e2 c4 e1R f5 e4 g3 h3 c5 e3 f6 h2 f7+ Ke7 c6 h4 c7 e2 Bd2 Nf6 Bg5 Nc6 b8B Na5 Ka2 Nb7 Be3 Ng4 Rc1 Nf2 Qc2 Nd1 Ba7 h3 Bd2 Rh6 Nf3 Rc6 Ng5 Qe8 Bg2 Rg1 Ka1 e1B Bd5 Rg2 Rf1 h1R Rf4 Rf1 Qg6 Rf3 Rh4 Rd3 Qh6 Rb8 Be6 Ra8 Ba5 Bd2 Rb1 Bf4 Bd2 Bd6 Rc1 Ba3 Rb1 d6 Rc1 Bd7 c8Q Qd8 Rb1 Be8 Rc1 Bg7 f8R Bf6 Nf7 Qd7 Qc7 Rc8 Rb1 Rc2 Qc5 Rc6 Qc4 Rb2 Qc2 Bg5 Ba2 Qg4 Be6 Qf5 Rc1 Qf2 Rh8 Na5 b7 Bf6 b8R Nb7 Rf8 Bg5 Be1 Bd2 Rc8 Ba5 Bd2 Bc7 Rb8 Ne3 Rf1 Nd1 Ra8 Re3 Rh8 Rbb3 Rd8 Rbd3 Rc8 Re2 Rd8 Bd7 Rdf8 Be8
nr1K4/1R2rQp1/1QP1p3/Nn3Q2/p1N1BQ2/1bkb1nN1/q3P2p/1R1nb3 w - - 0 1 illegal: No possible last move
1N5k/2bbBnRp/p1r1Q1pN/2n1p2r/b2N3B/2n1P1QK/4B1qP/nN6 w - - 0 2 legal: proof: b4 f5 a4 c5 g4 fxg4 Ra3 b6 d4 b5 axb5 cxd4 c4 Nf6 Re3 Ng8 Rc3 dxc3 f4 Kf7 Kf2 d5 Kg3 d4 b6 c2 b7 d3 f5 d2 c5 Bd7 c6 Na6 b8Q Nh6 f6 Kg8 c7 Nc5 c8N Nf7 Qe1 d1B Bg5 c1N b5 Ba4 b6 N1b3 b7 Na1 Nf3 e5 e3 a6 Nd4 Bd6 Be2 Bc7 Bh4 g6 Nd6 Qf8 Qe8 Rc8 Qe6 Qe8 Kg2 g3 Kh3 g2 b8N Qd8 Rf1 g1N+ Kg4 Qe7 N6f5 Qd6 Qf2 Qc6 Qg3 Qg2 Rd1 Nh3 Rc1 Ng5 Rc3 Nge4 Nh6+ Kf8 Rb3 Nc3 Rb6 Rg8 Rb7 Rg7 Nhf5 Kg8 Nh6+ Kh8 Ra7 Nd6 f7 Rgg8 f8B Nf7 Bfe7 Rgf8 Ndf5 Nd6 Nd4 Rf5 Rb7 Nf7 Ra7 Rh5 Rb7 Qd5 Kh3 Qc6 Ra7 Qg2+ Kg4 Bb6 Rb7 Nd8 Rc7 Be8 Bf8 Bec6 Rg7 Nf7 Bfe7 Bd7 Ng8 Rc6 Nh6 Qf3+ Kh3 Bc7 Bd6 Qd5 Be7 Qg2+
1qr3KQ/1R3QN1/p2R3p/3rkpr1/1NB2N1p/3bbP1P/1Rnn2r1/1R4q1 w - - 0 2 illegal: No possible last move, all moves rejected
N2k1Nrn/BR1N1Qq1/ppQ1rN2/1q4p1/2P2b2/QB1r3p/K1b4P/r6n w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 f5 a5 b6 axb6 fxg4 b4 Bb7 b5 Bc8 b7 Nd7 b8N Bb7 b6 Bc8 b7 Nc5 Ra2 Na6 Rb2 Bf5 Rb4 Bc8 Rb6 cxb6 f4 h5 d4 e5 Kd2 g5 Kc3 e3 Kb3 e2 d5 e1Q d6 e4 d7+ Ke7 f5 g3 Qf3 h4 Nh3 g2 Nc3 g1R Ka2 e3 Ne4 e2 Nf6 Qf2 Qa3+ Qc5 Nf4 e1R Ne6 h3 Bf4 Qc7 Bc4 Nh6 Bb3 Rg3 c4 Rd3 Rf1 Nf7 d8N Bg7 Nbd7 Rg8 b8Q Nh8 Nef8 Re6 Qb7 Qb4 Qg2 Nc5 Qc6 Ne4 Rf2 Qb7 Bb8 Ng3 Rf4 Nh1 Rd4 Rd6 Nde6 Qb5 Nc7 Kd8 Rh4 Re6 Rh7 a6 Ba7 Rb8 Nfd5 Be5 f6 Bf4 f7 Re1 N5f6 Ra1+ Kb2 Rg6 Na8 Rg8 Ne5 Bg4 Ned7 Bd1 Rg7 Bc2 Rh7 Rc1 Ka2 Rb1 Ng6 Re8 f8Q Rc8 Qg7 Re6 Qf7 Qc7 Ngf8 Qce5 Ng4 Qg7 Ngf6 Ra1+ Kb2 Rdd1 Qg8 Bd6 Ng6+ Qf8 Nde5 Rd3 Rb7 Rc7 Qh7 Rce7 Ned7 Re8 Qg8 Qg7 Qf7 Rg8 Ngf8 Rad1 Ka2 Bf4 Qcc5 Rb1 Qc6 Ra1+
qN1n1RnB/1r4B1/QP3q1p/2n2pRK/b3pP2/1n1r4/2p1B2k/b1B1QQ2 w - - 0 1 legal: proof: e4 a5 c4 d5 h4 b5 b4 g5 Na3 gxh4 Nc2 bxc4 exd5 Qd7 b5 Qd8 Nb4 axb4 Ke2 Kd7 Kf3 Kd6 g4 Ke5 a4 c5 d4+ Kd6 g5 e5 g6 c3 a5 b3 b6 h3 g7 b2 a6 b1N a7 h2 Be2 c2 Qe1 h6 Ra5 c4 Rc5 Ba6 Kg4 c3 Nf3 Nc6 Rf1 Rh7 Kh5 Qf6 Rb5 e4 Ne5 Nd8 Nc6 Nd2 Nb8 Nb3 f3 Nc5 Ra5 Ne7 g8Q Bb5 Qg1 Ng8 Rf2 Bc6 Qgf1 Ba4 Rb5 Bg7 Ra5 Ke7 d6+ Ke6 d7 Kf5 d5 Bh8 d6 h1Q+ Rh2 Qg1 Rf2 Qg3 Rb5 Qf4 Ra5 Qe3 Rb5 Kf4 Ra5 Kg3 Rb5 Ndb7 d8B Bg7 Be7 Nd8 d7 Qd3 Ra5 Qa6 Bf8 Bh8 Bg7 Qb7 Bg5 c1N Rb5 N1b3 Bc1 c2 Ra5 Nc6 d8B Qc8 Be7 Nd8 Bef8 Qe7 Ba1 Qf6 Bg7 Qcc6 f4 Qb7 Rg2+ Kh3 Rg5+ Kh2 Nc6 Rc8 Nb8 Qa8 Bab2 Rc6 Bc3 Rd6 Be5 Qc6 a8Q Rd3 Qa6 Qa8 Ba1 Qe7 Bab2 f5 Bbe5 Qf6 Ba1 Nce6 Re5 Nec5 Re8 Qe6 Rf8 Qe5 Bf6 Rb7 Bg7 Qf6 Bd4 Qc6 Bge5 Bf6 Bdb2 Be7 Bh8 Bf6 Ba3 Ba1 Bab2 Qe6 Bbg7 Qf6
5R1R/BQ6/2r1pp1n/q4Q1p/4pPB1/1BbPQ3/qQb3kn/K1N1n1nr w - - 0 1 illegal: No possible last move, all moves rejected
bQ2rrRB/2B2pRP/2p1RR1n/1qn1QN2/1pq2PBb/3kr2p/Kr6/8 w - - 0 1 illegal: No proof kernel
5r2/2QNpr2/K2bk3/q1pNP1p1/4pqP1/RnrnNn1Q/2N4Q/1BR2q2 w - - 0 1 illegal: No extended proof kernel
1B6/2Qnpp1R/4q2R/1p3kq1/1bbRNNN1/QPr1rP2/2Kb2pR/3rq3 w - - 0 1 legal: proof: g4 h5 e4 hxg4 a4 b5 d4 c6 e5 d6 a5 Nd7 d5 Nb6 axb6 dxe5 d6 e4 Bc4 Bb7 Bb3 Bc8 Bd5 cxd5 Kd2 Kd7 h4 Ke6 c4 a5 c5 g5 c6 a4 h5 d4 b7 d3 b8R e3+ Kc3 a3 d7 a2 h6 d2 h7 e2 c7 e1B f3 g3 Qa4 d1R+ Kc2 g2 Qb3+ Kf5 Rh6 g4 Nh3 g1Q Qa3 g3 Nf2 Bb4 Nc3 Nf6 Bf4 g2 Ng4 Qc5 Rh2 Bh6 Rb6 Qe5 Rc6 Qe6 Ne4 Qg8 d8R Qg5 Rd4 Rd8 h8N Nd7 Ng6 Ra6 Rc1 a1Q b3 Bb7 Rb6 Bd5 c8Q Bc4 Bb8 Rd3 Rf1 Qe1 Qc7 Re3 Nf4 Ra5 Qc1 Ra1 Qa3 Rd1 Rfh1 Bg7 Rdd6 Bgc3 Rh7 Bd2 R1h2 Qe5 Rdh6 Qe6 Rb7 Nb6 Ra7 Rdd3 Ra6 Nd7 Rd6 Ba5 Rd4 Bac3 Nef6 Bb4 Ne4 Rc3+
B1Rnq3/qpn5/1QNR1R1p/1p2B3/4q3/rQKpbn2/3PQ2P/3Rq1kb w - - 0 1 illegal: No proof kernel
1B3N2/2q3r1/B2kp1p1/bQ2p3/p4rbQ/P3p1Q1/BNq1PBn1/3nnK1R w - - 1 2 legal: proof: b4 h5 g4 hxg4 c3 c5 bxc5 d6 Qa4+ Nc6 Qc2 Nb8 Qe4 f6 Qe5 dxe5 a3 Kf7 Ra2 Ke8 Rb2 f5 Rb4 Bd7 Rd4 Bc8 Re4 fxe4 h4 Kd7 f4 b5 d4 a5 d5 e6 h5 g6 d6 b4 h6 a4 h7 b3 c6+ Ke8 d7+ Ke7 c7 g3 c4 g2 f5 b2 c5 Ra7 c6 Bb7 c8B Bh6 f6+ Kd6 f7 Ba6 f8B+ Qe7 d8Q+ Nd7 c7 Bg5 Nh3 g1Q Nd2 b1N Qe8 Nc5 Qb5 Nh6 Bb7 Bf6 c8Q Nf5 Ng5 Nc3 Bb2 Qg4 Bg2 Nd1 Bd4 Nh4 Bf2 Nd3+ Kf1 Qf5 Qc3 Ne1 Qg3 e3 Bgd5 Qc2 Ba2 Nhg2 Bc8 Rg8 h8Q Bb7 Qhh4 Rg7 Nh7 Bf3 Ba6 Bg4 Nc4+ Kc7 Nb2 Kd6 Rg1 Rc7 Rh1 Rc4 Qb7 Rf4 Qb4+ Kc7 Qb5 Qf7 Bc5 Bd8 Ba7 Kd6 Nf8 Ba5 Bb8+ Qfc7
4BR1r/3r1pp1/P6B/3p1P2/1pnqB1Q1/knQN1Np1/N1bn4/q1b3KB w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 c5 dxc5 h5 Ra3 hxg4 Rd3 Rh6 Rd5 Rh8 Rd4 exd4 e4 Ke7 f4 d5 Kf2 b5 c4 d3 h4 b3 c6 Kd6 a5 Kc5 a6 Kb4 c5 d2 e5 b2 e6 Qf6 c7 Be7 h5 Qe5 h6 Qf5 h7 Nc6 Bg2 Qc2 Nf3 g3+ Kg1 Na5 c6 Bh4 e7 Qg6 e8B Nh6 Nc3 Nc4 Na2+ Ka3 Rh3 b4 Bh1 Bf5 c8Q Ra7 c7 Bg5 Rh2 Rf8 h8N Qf6 Ng6 Bc2 Nge5 Nf5 Rh8 Nd4 Nd3 Nb3 Qe1 d1Q Qg4 Qd2 c8B Rd7 Rg8 Qdc3 Be3 Qce5 Qc3 b1N Rh8 Qd4 Rg8 Rd6 Bf5 Rd7 Be4 Qfe5 f5 Bf4 Bf2 Bc1 Be3 Qf6 Qe1 Qa1 Qc3 Nbd2 Bh6 Rd6 Bb5 Rfd8 Be8 Qd4+ Be3 Rh6 Rh8 Rd7 Rf8 Qf6 Bf4 Rh8 Bh6 Qd4+
1r1K4/3p3Q/1pB5/1pNQ2pN/n1RP1B1N/3rn3/1PbBkqp1/1Nr1bq2 w - - 1 2 legal: proof: e4 c5 d4 f5 exf5 h5 g4 hxg4 Qd3 a6 a4 c4 Ra3 cxd3 Rb3 Qc7 Rb6 Qd8 Rb5 axb5 Kd2 Kf7 Kc3 Kf6 Kb4 g5 Kc5 g3 c4 d2 h4 d1Q f4 Qd2 a5 Qc2 h5 Qd2 a6 Qe3 h6 Ra7 h7 Bh6 Bg2 e5 Kd6 b6 c5 e4 c6 Rc7 a7 Bg7 a8Q Rb7 c7 Ne7 Nf3 Qe2 Bd2 e3 Rc1 Qf8 Rc4 Na6 Nh4 Qf2 Bc6 Nc5 Qa2 g2 Qa8 Rg8 h8Q e2 Qh7 e1R Qa2 Re3 Qb3 Kf7 f6 Na4 f5 Rd3 Qa2 Rb8 Bf4 Bb7 c8N Nd5+ Ne7 Ne3 Kc7 Rh8 Ng8 Ba8 Bf3 Be4 Qb3 Rd1 Qa2 Bc2 Bc6 Rd3 Qb3 Qc5 Qa2 Rb7+ Kd8 Qb4 Qb3 Qbe1 Qa2 Qef1 Qb3 Kf8 f7 Be5 Nf6 Bd6 Nh5 Bb4 Rc3 Rg8 Qd5 Rg6 Rc4 Be1 Kc8 Ke7 f8N+ Rg7 Ne6 Rf7 Qh8 Rf6 Nc5 Re6 f6+ Kf7 Nf3 Kg6 f7 Re5 f8B Kf5 Be7 Kg4 Qh7 Re6 Nh4 Re4 Nf5 Kf3 Nh4+ Ke2 Kd8 Re6 Bc7 Rf6 Bcd6 Rf3 Bf4 Rd1 Bed6 Rc1 Bf8 Ng4 B8d6 Rd3 Bd2 Ne3 Bf4 Rb8+
2Q5/1p2pn1R/b3N1Qr/3p4/2Pq1pqR/RRrp2k1/KP5b/N1nNn2B w - - 0 1 illegal: No proof kernel
3r1bQN/k1N3bb/2b3R1/p3p3/rp1R2R1/2N3pQ/pK2PnPn/2B2Nb1 w - - 0 1 illegal: No proof kernel forced: bxLB
5q1b/1n1b1BR1/2R1Q1pr/6pR/2QRp2p/pBp2B1P/4P2r/nk1KN1n1 w - - 1 2 illegal: No proof kernel
NnnN2B1/p1K1R1Qp/1Bp1b3/r7/2P1Pkrp/1p2pN2/Q2r1b2/q3Q2N w - - 0 1 illegal: No proof kernel
8/pp5R/p2kbrQB/3p3p/1r1K4/Prn1PN1R/2p1NRn1/3QRqbN w - - 0 1 illegal: Other
3QNr1b/pR3p2/K4BNq/3bp2Q/Ppk5/pN1nQ1pR/qP2rQq1/8 w - - 0 1 illegal: No proof kernel
1QqN2bN/q2PK3/N5P1/n5B1/3knB1R/N2r1nqN/rn1N4/6rb w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 a4 b5 axb5 d5 cxd5 Na6 b6 Qg5 b5 Nb8 Ra4 Qd8 g3 g5 Bg2 g4 Rb4 axb4 Be4 Nc6 Bf3 Nb8 h4 gxf3 g4 Nc6 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 Kd7 d4 Kd6 e4 f5 g7 c5 b7 h5 g6 c4 b6 h4 Bb2 h3 Qb3 c3 Qa4 c2 Qb3 c1N Nd2 h2 Ne2 Nf6 g8N Rh3 Nh6 Be6 Ng1 Nc6 b8N Ra2 b7 Bg8 Na6 Na5 b8B+ Qc7 Bc3 Rg3 Qb1 b3 Nh3 b2 e5+ Ke7 d6+ Ke6 d7 Kd5 d8N Ne4+ Ke1 Qa7 e6 f2+ Kf1 Re3 Kg2 f1N e7 Nd3 e8N Rf3 Nhf7 Re3 Nf2 f3+ Kh3 f4 Kg4 Ne1 Kf5 Rd3 Nb3 Nfd2 Ned6 Ndc4 Nh3 f2 Nd2 f1R Nh8 f3 Nb5 f2 Na3 Rg1 Bf4 f1Q Bb4 Qf3 Be7 Qg3 Beg5 Nf2 Kf6 Nf3 Qe1 b1Q Qe8 Qbb8 Qf8 Qaa8 Ke7 Qc8 Qe8 Ne4 Qb5+ Nc5 Qb8 Nb2 Nf1 Ke4 d5 Kd4 d6 Qa7+ d7 Ne4 Nd2 Re1 Rf1 h1B Rg1 Qf2 Rg4 Qg3 Rh4 Rg1
1q6/2R2Rp1/2KpR2P/1Pq1N3/6q1/Bnb1br1k/Brp2R2/1R2QbR1 w - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 f5 exf5 c5 Be2 Nc6 Bf1 Nb8 c4 Rh6 b4 Nc6 bxc6 Rh4 d4 Rh8 b5 cxd4 Nc3 dxc3 c5 Rh6 Qb3 Rh5 Qd1 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 h4 c2 f4 g3 h5 g2 h6 a4 c7 a3 c6 e4 Qd2 e3 Be2 a2 Ba3 Bc5 Bg4 d6 Nf3 g1Q Rb1 a1B Ne5 e2 Qe1 Be3 Bh5 Bad4 Bf7 Qg4 Rg1 Bc3 Be6 Bb7 c8R Qb6 Re8 Ne7+ Ke4 Bc8 c7 Nc6 Ba2 Qb8 Kd5 Na5 Re7 Bd7 c8R Nb3 Rc7 Rf8 Re8 Be6+ Kc6 Bc4 Nd7+ Kf7 f6 Kg6 f5+ Kh5 f7 Ra4 f6 Rb4 Ne5 Kg5 Qf2 e1Q Re6 Bf1 Qe2 Qf2 Qe1 Re8 f8R Kh4 f7 Kh3 Rh8 Re7 f8R Rf7 Rhg8 Rf3 Rff7 Nc1 Rgf8 Rb2 Rf5 Nb3 R8f7 Qd2 R5f6 Qdd4 Rf4 Rg3 Rf2 Rf3 Rf4 Qb4 Rff7 Qc5+
R1rr1kN1/1b2b2R/3RqN2/b5P1/1P3bb1/1rn4N/N3n1Bn/NB1K2b1 w - - 0 1 legal: proof: c4 e5 f4 exf4 g4 h5 b3 d5 cxd5 g5 a4 h4 Qc2 b6 Qd3 b5 Qg3 hxg3 axb5 f3 Ba3 Nd7 Bd6 Nb8 Bf4 gxf4 d4 a5 h4 f5 e4 c5 d6 c4 d5 f2+ Kd2 g2 h5 c3+ Kd1 a4 e5 a3 g5 f3 b6 a2 b7 f4 e6 Qb6 h6 Nf6 h7 Ne4 e7 Bg4 Na3 Nc6 b8N Nd4 Nc2 Ne2 Nh3 g1B Nd7 Rc8 Bg2 f1B Nf6+ Kf7 d7 f2 d8R f3 Rh2 Qe6 e8B+ Kg7 d6 Be7 Rd7 Kf8 Bg6 Rg8 h8N Rd8 Rb1 a1B Nf7 Bb2 Na1 Ba3 Rc1 Bb4 Bf5 Ba5 Nh6 Rh8 Nhg8 Rc8 Bh1 Bg2 Ra7 f1N d7 f2 d8N B2f3 Nc6 Bg2 Ra8 B2f3 Rg2 Nh2 Rc2 Rd8+ Rd2 Rc8 Rd6 f1R+ Kc2 Rd8 Nb4 Rb1 Na2 Rc8 b4 Rb3 Kd1 c2+ Ke1 c1B Kd1 Bce3 Rf2 Bf4 Bg2 N4g3 Bb1 Bb7 Rf3 Ne4 Rc3 Kf7 Rc7 Kg7 Nh6 Rhd8 Nhg8 Kf8 Rd3 Bed6 Rh7 Be7 Rd6 N4c3+
n6B/bb1R2qB/1NRr3r/2qNN3/4BPn1/Bqq3KB/4Pbb1/6nk w - - 0 1 legal: proof: d4 e5 b4 exd4 h4 b5 a4 c5 axb5 g5 Ra6 gxh4 Rf6 c4 Qd3 cxd3 Rf3 Qb6 Rxf7 Qd8 g4 a5 c4 d5 f4 h5 Kf2 h3 g5 h2 g6 h4 b6 h3 c5 a4 b5 d2 c6 d1Q g7 a3 b7 a2 b6 a1B c7 d3 Ba3 d4 Rf6 Kd7 Bb2 d2 Rg6 d3 Bd4 Na6 b8B Qe7 b7 Nh6 g8B Qc2 Nc3 d1N+ Kg3 d2 Bg7 Nf2 Nd5 d1Q Bd4 Qc3+ Nf3 Qec5 Be5 Qdb3 Rf6 Nhg4 Bg2 Rh6 Rf7+ Ke6 Rg1 h1B Bh8 h2 Ne7 Nh3 Rb1 Ng1 Bh3 Bg2 Rd1 h1Q Rd8 Qg7 Rd1 Bd4 Rc1 Be3 Ng6 Kd5 Rc3 Ke4 Rd7 Be7 Ba7 Bd6 b8N Bb7 c8B Nc7 Bb6 Ra6 Bh7 Na8 Nfe5 Bc7 Ba5 Bb6 Bb4 Ba7 Ba3 Rd6 Rc2 Nf3 Rc3 Qa1 Ne7+ Kd4 Rc1 Qac3 Nd5 Ng1 Rc2 Bc6 Ba6 Bb7 Bad3 Bf1 Rc1 Qc3b4 Rc2 Qcb5 Ng6 Bd2 Rc8 Q4c3 Rc6 Qbc5 Ne5 Bc1 Nf6 Ke3 Bde4 Bd2 Rf7 Bc1 Nbd7 Bd2 Nh5 Bc1 Kh4 Kf2 Nb6 Be3 Rd7 Bg2 Nbc4 Kf1 Nb6 Nf3+ Kg3 Kg1 Nf6 Kh1 Nfd5 Ng1 Rcc7 Qa1 Rc8 Qac3 Rc6 Bf2#
3qnB2/k1BRn3/n4n2/1Q1PR3/5B2/bBrnPr2/Kn5r/1BBNr2q w - - 0 1 legal: proof: g4 e5 d4 b5 a4 d5 c4 h5 f3 hxg4 Na3 Bf5 Nc2 Be4 fxe4 dxc4 axb5 Rh6 d5 Rh8 Nd4 exd4 Kd2 Kd7 Kc2 Kc8 Kb1 Kb7 b4 f5 h4 c5 h5 g5 e5 a5 e3 a4 b6 a3 b5 a2+ Kb2 d3 e6 f4 e7 d2 e8B f3 h6 c3+ Kb3 g3 h7 f2 Rh2 g4 Rh6 g2 Rb1 a1R Ne2 g1N Rh4 c2 Rb2 c4+ Kc3 g3 Rh1 g2 Rb1 Nh3 Kb2 g1Q Bf7 c3+ Kb3 Ba3 Bg6 Ng5 Rh5 Ne4 Re5 Ne7 Rb2 Rf8 h8B Qh1 Bg7 Rf3 Bf8 Nf6 Be4 Rb1 Ka2 Na6 Bh7 Kb8 b7 Ka7 Rb4 Ne8 b8B+ Kb6 Qe1 d1N Bc7+ Ka7 Qd2 Rc8 Qd3 Nb2 Rg4 Rb8 Rg7 Rb6 Qc4 Rh6 Qb4 Rh2 b6+ Ka8 b7+ Ka7 Bg2 f1N Qb5 Nd2 Bf1 Ne4 b8B+ Ka8 Bf5 N4f6 Rh7 Ng6 Rd7 Ne7 Bd2 Re1 Bc1 Rh8 Bd3 Rh2 Bc4 Rh5 Bb3 Rh2 Bd2 c1R Bg2 c2 Nc3 Rcd1 Bc1 Rd3 Nd1 Rc3 Bh3 Rg3 Bf5 Rgh3 Bd6 Rf3 Bbc7 Ka7 Bh6 Nc6 Bdf8 Ne7 Bf4 Nh5 Bd2 c1N+ Kb1 Ncd3 Ka2 Nf2 Bb1 Nhf6 Bc1 Nfd3
r3kn2/3rPq1q/1B2r3/1r2n3/2N2Nb1/1R1RK1B1/BBr2rPq/Rq5B w - - 0 1 illegal: Other
N2r1n2/r2BN1n1/1R6/1Bb2rp1/3R3N/2qn2PP/KbN1Bb1k/1Nq1q3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f3 e5 g3 b5 axb5 h4 Qe2 h3 Qg2 hxg2 Ke2 Qe7 Be3 d3+ Ke1 d2+ Ke2 Rh5 Bc5 Bb7 Bd4 exd4 e5 Be4 fxe4 Rh8 Ra4 Qf6 Ra1 Qd8 Kd1 Ke7 c4 Ke6 Kc2 d1N Kb3 d5 b6 g5 c5 f5 c6 a5 b7 a4+ Ka2 f4 b4 a3 b5 f3 c7 f2 c8B+ Nd7 b8N d3 b6 d4 b7 d2 Nf3 g1B Kb3 a2 Bd3 f1R Be2 d3 Nc6 Qf6 b8N Ne7 Nh4 Rf5 Nb4 Ra7 Nc2 Nf2 Nc6 d1Q h3 d2 Bca6 Qc1 Bab5 d1Q Rh2 Qe1 Rg2 Ng6 Ne7 Nd3 Rf2 Qg7 Rf4 Nf6 Rg4 Ne8 Rf4 Kf7 e6+ Kf6 Bd7 Ke5 Rg4 Kd6 e5+ Kc5 Rd4 Bf2 Nc6 Qf6 e7 Ng7 e8B Bd6 e6 Nf8 e7 Rg8 Rb4 Kd5 Rb6 Ke4 Bg6 Bb8 e8N Bd6 Nc7 Bdc5 Ne7 Qe5 Na8 Qd4 Nba3 Qe5 Rb1 a1B Ka2 Bb2 Bge8 Q5c3 Bb5 Ng6 Bed7 Rd8 Nb4 Ke3 Rd6 Nf8 Rd4 Bg1 Nc2+ Kf2 Nf3 Kg2 Nh4+ Kh1 Nf3 Ba1 Nh4 Bf2 Rb2 Kh2 Rbb4 Rc7 Nb1 Bb2 Ba4 Nh7 Rb6 Nf8 Bab5 Ra7+
2b2N2/3P2N1/2b1rB2/1B1NR2b/2np1nq1/n3n3/qRNrN2P/K1Rn1k2 w - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 axb5 gxf4 g5 c6 e3 Bg7 Qg4 Be5 e4 Bc7 e5 hxg4 Nc3 c5 Nb1 Bd6 exd6 cxd4 Kd2 Kd7 b4 Ke6 c4 Kf5 Kc2 Ke4 Kb2 e5 c5 a5 b6 f5 b5 f3 g6 f2 b7 a4 g7 a3+ Ka2 f4 b6 g3 c6 g2 d7 d3 c7 d2 Bb5 Ke3 Ne2 f1B Nec3 Kf2 Rg1 d1N Ne2 d4 Nd2 f3 Bb2 e4 Ba6 e3 Nb1 Ne7 g8N Nbc6 b8N Nd5 b7 Ne5 Nc6 Nf4 b8N Rh6 Bc3 Nc4 Bd2 Re6 Nh6 Qg8 Rh1 g1Q Nb4 Bg2 Nf5 Kf1 N8c6 f2 Nd8 Bc6 Nbc3 Qg4 Kb1 Qh3 Ncd5 a2+ Kc2 Rb8 Rc1 a1N+ Kb1 Nc2 Bb5 N2a3+ Ka1 Rb7 Ng7 Rb8 Nec3 e2 Nc2 e1N Ne2 Qb3 Bb4 Neg2 Be7 Nge3 Bf6 Kg2 Rb1 f1B Rb2 Rb7 Nf7 Kf2 Nh8 Qg4 Ng6 Bg2 Rg1 Bf3 Nf8 Rb8 Rg3 Kf1 Rh3 Qg6 Rg3 Bh5 Rg5 Rb7 Rf5 Qg4 Re5 Na5 Bc4 Qd3 Ncb4 Ba4 Rg5 Rbb6 Rf5 Bb7 c8R Qc2 Rc5 Bac6 Rb3 Bc8 Re5 Rb7 Ba6 Qd3 Rc1 N5c4 Nc2 Rb8 Ne1 Rb7 Rbb1 Rb2 Bb5 Rd2 Rb2 Qb3 Nc2 Qa2+
R7/R3n1b1/1Brq1rpn/B1q5/B1q1Rr1k/1KP1q2b/2N1P3/2Rn2NR w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 g4 f5 Qd3 h6 Qf3 exf4 gxf5 h5 Qg4 hxg4 Kd2 Kf7 h4 Kf6 b4 d5 h5 Kg5 b6 a5 b7 d3 Kc3 g3 h6 g2 b5 a4 b6 g6 h7 a3 f6 a2 f7 d2 Rh4 d1N+ Kb3 d4 c3 d3 Rh1 d2 Bb2 f3 Rh4 f2 Bc1 Qd4 Na3 Nc6 b8B Bg7 f8R Nh6 b7 Ne7 Bc7 Qc5 b8R Ra6 Nc2 Bh3 Ra8 Rc6 Rf7 Rf8 h8R Qe3 Rb1 a1Q Re4 Qa6 Ba5 Qc8 Ra1 Qg4 Ba3 Kh4 Bc5 Qgf4 Bcb6 Qg4 Rf3 Rf4 Rc1 Qc8 Ra7 Qa6 Rha8 Qc4+ Ka3 Nb2 Rg3 d1Q Rg5 Qd6+ Rc5 Qa6 Kb3 Nd1 Rh5+ Kg4 Nf3 g1Q Bg2 f1R Bh1 Qgf2 Ng1 Qec5 Bg2 Qfe3 Bf3+ Kg3 Bg4 Rf6 Bd7 R1f4 Be8 Bc8 Rh2 Bh3 Rh1 Kh4 Bd7 Rc8 Bb5 Rc6 Ba4 Qac4+
2N1q3/pN5b/1R2nb2/Bnq2qP1/b1R4n/5rkB/1P2R2R/r1Rq1B1K w - - 0 1 legal: proof: f4 b5 h4 c5 a4 g5 axb5 gxh4 d3 e5 f5 c4 Qd2 d5 Qf4 exf4 c3 d4 cxd4 c3 d5 c2 Na3 Qd6 Be3 c1Q+ Kf2 Qc2 Bc1 Qb1 f6 Qxf6 Ke1 Qd8 Kf2 Ke7 e4 Kd6 g4 Ke5 Kg2 h5 g5 f5 d6 Be7 d7 Nc6 b6 Nd4 b7 Nh6 b8R h3+ Kh2 Qc2+ Bg2 h4 Bd2 f3 Bc3 Kf4 e5 f2 e6 f1B Rb3 Nf7 Rb1 Nd6 Ba5 Qc5 Nc4 Ba6 Rb8 Bb5 Ne2+ Kg4 Kg1 f4 Ng3 f3 Nf5 Ba4 Rb6 N6b5 Nfd6 f2+ Kh2 Be2 Nb7 f1Q Ncd6 Qf4+ Kg1 Kg3 Re1 Qg8 d8R Rh7 Rd7 Rf8 Nc8 Bh5 Ra1 Qe4 Rd5 Bg6 Re5 Rh8 Rd1 Rf3 Rd2 Bf6 e7 Qf5 Ree6 Nb3+ d4 Qe8 Rd1 Qc3 d5 Qc5+ Re3 N3d4 d6 Nc6 d7 Nd8 Bb4 Ne6 d8R Rh6 Rf1 Bh7 Ba5 Rh5 Rf2 Rh6 Ree2 h2+ Kf1 Rh5 Rd4 Rh6 Rg1 h1Q Rc4 h3 Rce4 h2 Rc4 Rb3 Rcf4 Rh4 Rc4 Rf4 Bh3+ Kh4 Rc3 Ra3 Rc4 Qhd5 Rh1 Qdd6 Kg2 Ra1 Rhc1 Qd1 Rce4 h1N Rec4 Qb1 Kh2 Ng3 Bf1 Nf5 Kh1 Kg3 Rh2 Qdd4 Bh3 Rf3 Bf1 Nh4 Bh3 Qed8 Bf1 Qd1 e8B Nec7 Bg6 Qe8 Bf5 Ne6 Bh3 Qbf5
1B1rb3/1rB1K1n1/Bn1nR1q1/2rB4/BR3Q2/PNPB2qk/2p1qn2/1n6 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 b5 c4 bxc4 b4 e5 b5 exf4 Na3 Ra7 Kf2 Ra6 Ke1 Ra8 Nc2 c5 Rh5 c3 Nh3 c4 Kf2 Bg7 Nb4 axb4 Bb2 c2 Ke1 c1N Ng1 c3 Rh2 c2 Rh1 Bc3 dxc3 Kf8 Rh3 Ke7 Rh1 Ke8 Kd2 Ke7 g4 Ke6 e4 h5 a3 d5 b6 f5 g6 b3 b7 h4 g7 f3 Ke3 f2 Kd4 h3 Kc5 f4 g5 d4 g6 d3 e5 Kf5 e6 h2 e7 f3 e8B Kg4 Be2 f1Q Rb1 d2 Bf7 Ne7 g8B Qe8 Kd6 Rh5 g7 Qf2 Ra1 Nd7 b8B Nb6 Ba6 Nf5+ Kc7 Bd7 Bd3 Ne2 Bc1 b2 Bb3 b1N Bgc4 Nd6 g8B Nd4 Ne2 Qg6 Kd8 Rc5 Ba4 Qg3 Re1 h1R Ke7 f2 Bgd5 f1Q Ba6 Ne6 Nd4+ Kh3 Nb3 Ng7 Re6 Be8 Qf3 d1N Bf4 Nf2 Be5 Qe1 Qf4 Qe2 Ra2 Rd1 Rb2 Ra7+ Bc7 Nb7 Bb8 Rd2 Bec7 Nd6 Nd4 Rd1 Rb4 Rb7 Nb3 Rd2 B3c4 Rd4 Bd3 Nf7 Bdc6 Rd8 Bd5 Nd6
4rr2/1k1PBr1B/3Rr1Pn/R3bRRr/1B3N1n/2np4/r1N4K/1bRb4 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 e4 f5 Qg4 d5 Qe2 d3 Qg4 d4 Qf3 Qd5 exd5 Be6 Qe3 Bc8 Qe4 fxe4 c4 Kd7 g4 Kc7 f4 e5 Kf2 a5 Kg2 h5 b4 h3+ Kh2 d2 g5 d1B g6 h4 f5 e3 b6+ Kb7 b5 e2 d6 e1R f6 a4 c5 e4 f7 e3 Ra2 a3 Bd2 e2 Bb4 Bf5 d7 Bg7 f8B Nh6 Be7 Na6 Rd2 a2 Na3 a1R Nc2 Raf8 c6+ Ka8 c7 Kb7 c8R Nc7 Rd8 Ra2 Ra8 Nd5 Ra5 Nc3 Rd3 Be4 Rf3 Rf7 Rf5 Re8 Bg2 Rf1 Rg5 e1R Ne2 Rff8 Nf4 Be5 Bf3 Re3 Bg4 Rff3 Be6 Bf5 Bg8 Re4 Kg1 h2+ Kg2 Rf1 Bh7 h3+ Kg3 Ree1 Rg1 h1N+ Kh2 Ng3 Rh1 Kb8 b7 Bd3 Rg1 Ngf5 Rh1 Kc7 b8R Nh4 b6+ Kc6 Rc8+ Kb7 Rc6 Re4 Rd6 Rf2+ Kg3 h2 Rf1 h1R Rg1 Kb8 b7 Kc7 b8R Rf7 Ne1 Bb1 Rbb5 d3 Nc2 Ree2 Rc5+ Kb7 Rcd5 Bg7 Rdc5 Re6 Rcf5 Be5 Re1 Nf3 Rf1 Rh5 Rg1 Nh4 Kh3 Re2 Rh1 Re4 Kh2 Rc4 Re1 Rcc8 Reg1 Ref8 Rh1 Rce8 Rhg1 Bg4 Rc1 Bd1
R3N1q1/6RR/4q1Rr/1pP3b1/K2BBqbb/B4qN1/1P3brk/2R1n1b1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 hxg4 a5 f5 exf5 b6 a6 Rh6 Bg2 Rh3 Bf1 Rh8 c3 Nc6 Qe2 Na5 Qe4 Nb7 axb7 a5 Kd1 a4 Qe3 a3 Nd2 a2 Qe4 Nf6 Qb1 axb1Q Ke1 Ng8 Kd1 Kf7 b8R Kf6 f4 g5 h4 d5 h5 e5 h6 e4 c4 d3 h7 d4 c5 e3 Ra4 e2+ Ke1 g3 Ra6 g2 Ra3 g4 Ra7 g3 Rc7 Nh6 Nb3 Nf7 Kd2 Qa2 Na5 Ng5 Rbb7 Qe6 Nc4 Be7 Nd6 e1B+ Kd1 d2 Kc2 Ra7 Bd3 Nf3 Ne2 g1B Be4 g2 Ng3 d3+ Kc3 d1Q+ Bd2 Ra8 Kb4 Qc1 Kb5 Bgf2 Bb4 g1B Ba3 Rb8 Ka4 d2 Ra7 Rg8 h8B+ Rg7 Ra8 Qdg8 Rca7 Rb7 Rh7 Rc7 Rb7 Rc6 Rba7 Be3 Rb7 Be1f2 Rc7 Ne1 Ne8+ Kf7 f6 d1Q+ Bc2 Bd2 f5 Qf3 Be4 Bg5 Rd7 Qcf4 Rda7 Kf8 f7 Bh4 Rd7 Beg5 Rd1 Ke7 f8R Rd6 f6+ Kd7 f7 Ke7 Nc7 Kf6 Rc1 Ke5 Rd8 Rc6 f8R Rd6 Rf6 Rg6 Ne8 Rh6 Rhf7 Rd2 Rd4 Qc4+ Bb4 Bg4 Re7+ Qce6 Rea7 Q4e3 Nh1 Bfg3 Ba3 Rg2 Rg6+ Kf4 Rh7 B3f2 Rdd7 Qd2 Bd4 Qde3 Ng3 Qd2 Nf1 Qde3 Nh2 Kg3 Rdg7 Qef4 Nf1+ Kh3 Ng3 Kh2 Rga7 Qed6 Rac7 Qde6 Rcg7 b5+
kqNN2R1/5qPb/brb4N/B2NP2n/1b1bRqB1/R6n/p4Nq1/K7 w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nh3 cxd4 Ng1 e5 Bd2 e4 Bf4 Bc5 Bc1 Bf8 h4 g5 Be3 a5 Qd2 g3 Qd1 g4 Qd3 exd3 Bc1 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Qb6 Bg2 Qf6 Bf1 Qd8 Kd1 h5 c4 d5 e4 Kd7 b4 Kc7 f4 Kb7 b6 g2 g6 h4 c5 h3 b5 a4 c6+ Ka8 f5 g3 g7 h2 c7 d2 Kc2 d1Q+ Kb2 d3 f6 a3+ Ka2 d2 e5 d4 f7 d3 Bb2 Bb4 f8N Qh5 Ne2 g1B Bh3 d1Q Ng6 g2 Nd2 Qc1 Ng3 Nh6 Nde4 d2 Bc3 d1B Nf2 Bc2 Bg4 Qf4 Nf5 Nf7 Nh6 Ba6 c8N Ng5 Nge7 Qhf7+ Nd5 Bh7 Be1 Nd7 b7+ Kb8 Bd2 Nh3 Re1 Qc7 Re4 Nf6 Ka1 a2 Bc3 Nh5 Be1 Bd6 Ba5 Rg8 Nd3 Ba7 Nf2 Bb4 Rc1 h1B Rc3 Bb6 Ra3 B6c5 Ncb6 Ka7 b8R Rh8 Rf8 Qb8 Nc8+ Ka8 b6 Be3 Rg8 g1Q+ Kb2 Qgh2 Ka1 Bd4+ Nc3 Qb3 Nf7 Bg6 Re2 Qd6 Re1 Rh6 b7+ Kb8 Re3 Bh7 Re2 Rf6 Nh6 Qf7 Re1 Bd5 Re4 Rg6 Ne7+ Ka7 b8N Ka8 Nc8 Qg2 Nc6 Qb8 Nd8 Rb6 Nf5 Bdc5 Nh6 Bc6 Nd5 Bd4+
2N2k2/n1rRn1N1/2r5/n3R1Bn/Rn1P2rP/KpR3b1/3r2BR/2q1N2n w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 h5 Qb3 f5 Ng1 f3 Qc4 Be6 Qe4 f4 Qf5 Bd7 Qg5 Bf5 gxf5 Nc6 Qg3 Nb8 Qg4 hxg4 Kd1 b5 Kc2 g5 Kb2 c5 e4 f2 a4 b3 h4 b4 d4 g3 e5 c4 f6 g4 a5 g2 d6 f3 e6 g3 e7 Ra7 a6 Qc8 Be3 c3+ Kc1 b2+ Kc2 b3+ Kd3 c2 Nd2 b1N Bh6 c1N+ Ke4 Nc6 Kd5 Nd3 Kc4 Nc3 Bf4 Ndb4 Ne4 Rh6 Ra5 Rc7 a7 Nb5 a8R Nba7 d7+ Kf7 e8R Bd6 d8R Nge7 Rc5 Na5+ Kc3 Rg6 Kb2 Rg4 Ka3 Rg6 Bb5 f1N Rc3 f2 Nf3 g1R Rd7 g2 Ne1 Ng3 Bg5 f1N Bc6 Nh5 Rh2 Bg3 Bb7 Rh1 Bc6 g1R Nd6+ Ke6 f7 Rh6 Ra2 Rh2 Bf3 Rd2 Bg2 Bf4 Rb2 Nfg3 Ra2 Nh1 Rac2 Qb8 Nc8 Bg3 f8N+ Kf7 Ne6 Qb6 Ng7 Qc6 Re3 Qc4 Rcc3 Rhc6 Re5 Kg6 Rf8 Kh7 Rf2 Kg8 Bh3 Qc5 Rh2 Kf8 Bf1 Bf2 Bh3 Rg4 Bg2 Bg3 Rb8 Nd3+ Rb4 Qc4 Ra4 Nb4 Rce3 Qc2 Rc3 Qc1+
5Nr1/4K3/Bkb1P2b/1r1rBQ2/2b1NBpR/Bnqp2n1/1n2qP2/B4B2 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 axb5 e5 d4 h5 Qd3 exd4 e5 h4 Qe4 fxe4 Ra3 h3 Rd3 c4 gxh3 cxd3 h4 Rh7 h5 Rh8 Kd2 a5 c4 d5 h4 Kd7 b6 Kc6 e6 g5 b7 a4 c5 g4 h6 a3 h5 a2 h7 a1R h6 Nf6 Nf3 Bd7 Ba3 Nh5 Nh4 Qf6 Nc3 Ra5 Ng6 Rb5 Rh4 Rg8 h8Q Na6 b8B Ng3 h7 Bh6+ Bf4 Kb7 c6+ Kb6 c7 Bc6 c8B Nc5 Ba6 Ra2+ Bb2 Raa5 Nf8 Qe5 Ba3 e3+ Ke1 e2 Kd2 e1N Ne4 Qc7 Qf6 Nb3+ Kd1 d2 h8B Nd3 Kc2 Qc8 Qf5 Nb2 Bhe5 d3+ Kc3 d1B Bf6 Na1 Kd4 d2 Ke5 d4+ Kd6 d3 Ke7 Nb3 Bg7 Rd5 b5 Bc2 Bh8 d1Q Bhe5 Qe2 Bc3 Na4 Ba1 Nb2 Be5 Nd4 Bf4 Bb3 Be5 Bc4 Bf4 Nb3 Be5 Ka7 b6+ Ka8 b7+ Ka7 b8B+ Kb6 Bf4 Rab5 Bbe5 Qb8 Bf6 Qe5 Bh8 Qd4 Bhe5 Qc3
4B1R1/KP1bQp2/Bq2qnb1/2N3Br/3br3/2kBq3/Rp2P1n1/n1B2B2 w - - 0 1 legal: proof: b4 a5 h4 d5 f4 g5 hxg5 e5 a4 exf4 c4 b6 cxd5 Bd7 Qb3 Be6 b5 Bh3 Qb4 Bc8 Qd6 Bh3 Qa3 Bc8 Qb4 axb4 a5 Bg7 a6 Bb2 Na3 Bg7 Nc4 Bf8 Na5 bxa5 Kf2 Ke7 d4 Kd6 g4 h5 a7 c5 b6 a4 g6 c4 g5 c3 g7 f3 Ke3 h4 g6 f2 Nf3 c2 Rg1 a3 Ra2 h3 Ne5 h2 Nd3 h1B Nc5 Ne7 g8B b3 g7 b2 Bh7 Nd7 g8B Bg7 Bd3 Rh5 Ba6 Be4 Bh7 Bg6 Rg2 Rb8 a8B Nf6 Bc6 Bd7 b7 Nf5+ Kd3 Nh4+ Kc4 Qe8 Kb5 Qe6 Kb6 Re8 Ka7 Bh8 Rg3 Ng2 Bcb5 Qf5 Ba4 Re4 Rg4 Qe6 B4b5 Bc8 Be8 Bd7 Rg3 Bf5 Rg8 Bg6 Bh6 c1Q Bd2 Kc7 d6+ Kc6 Bh6 Kd5 Bf4 Bc8 d7 Qe3 d8Q+ Bd7 Qe7 Bg7 Ra1 a2 Bh6 Qd3 Bg5 Qb5 Bc1 Kc4 d5 Kc3 d6 Qd3 Bb5 Qe3 Ba6 Bb5 d7 Bh8 d8B Bd7 Bc7 Bg7 Bf4 Bh8 Rb1 a1N Bg5 Nf4 Bg2 f1Q Bh3 Qfg1 Bf1 Nb3 Ra1 Ng2 Ra4 Na1 Ra2 Qd4 Ra4 Qge3 Ra5 Qdd6 Ra2 Qb6+ Ka8 Rd4 Bf4 Nd5 Qf8 Bc2 Bg5 Rg4 Be4 Bd4 Qe7 Nf6 Bf5 Bb3 Bb1 Bc2 Kb8 Bh7 Bbd3 Bg6 Ka8 Re4 Kb8 Qbd6+ Ka7 Qb6+
3b2B1/1k1p2BP/1p6/2BRrnrK/3Pr1B1/q1r5/rb2N2B/QB1Nb2n w - - 0 1 legal: proof: e4 f5 f3 h5 Nc3 b6 Nd5 Bb7 Nf6+ exf6 e5 Be4 fxe4 f4 Ke2 f5 Kf2 Ne7 Ke1 Ng8 a4 b5 axb5 Bc5 g4 hxg4 b6 Na6 b7 Bf8 b8B Ba3 b4 Qc8 b5 Bf8 b6 Bc5 b7 Bf8 Rb1 Qd8 Rb6 cxb6 Kf2 g5 c4 g3+ Kf3 g2 h4 g4+ Ke2 g3 Kf3 Be7 d4 Nc5 h5 a5 e6 a4 h6 a3 h7 a2 e5 a1B Be2 Nd3 c5 Bb2 c6 Ra2 c7 Nh6 c8B Nf2 Rh3 Nh1 Rh5 Bh4 Rg5 Qe7 Bd6 Kd8 b8B Re8 Bb7 Qf8 Bd5 Kc8 Bdc4 Kb7 e7 Rc8 Bcd3 Rc3 e8N Qe7 e6 Qf8 Rh5 Bd8 Be5 Qb4 e7 Qa3 Nh3 g1R Bg7 g2 Nf6 Re1 e8B g1B Bf7 Bf2 Ne4 Rg1 Bd2 Be1 Qa1 Rg5 Ng3 Rg6 Kg2 f3+ Kh2 f2 Bb1 f1R Bg4 f4 Ne2 f3 Rd5 f2 Bg8 Rc8 Bb4 Rc3 Bc5 Nf5 Bbe5 Rg1 Bf4 f1R Nf2 Rgg3 Nd1 Rge3 Bg3 Re5 Kh3 Ne7 Kh4 Nf5+ Kh5 Rf4 Bh2 Rfe4 Bh6 Re7 Bf8 R7e5 Bg7 Rg5#
1bRr2RB/N6n/3b3r/K2k4/Q1bp4/q1Pq3B/3pPRbb/1R1nRR2 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h5 Nc3 Ba3 Ne4 Bf8 Nf2 f5 gxf5 Nh6 Ng4 hxg4 Ra3 Ng8 Ra5 Rh7 Ra1 Rh8 Kd2 Ke7 b4 Kd6 h4 g5 b6 a5 h5 a4 b7 d3 Kc3 a3 h6 a2 b5 f3 Kb4 f2 f6 d2 b6 g3 f7 g2 h7 g4 c3 g3 Ba3 Nc6+ Kb5+ Kd5 b8R Nf6 b7 Bd6 f8R Nb4 Qa4 Nd3 Rh2 Nb2 Nh3 g1B Re1 a1Q Ng5 g2 Bc5 Qa3 Ne6 Nd1 Nd4 Ra6 Rh1 Bgh2 Nc6 g1B Bh3 f1B Na7 Bg2 Bd4 Bf2 Rf7 Bfg3 Rhf1 Re8 h8R Nh7 Ra8 Bb8 R7f3 Rh6 R3f2 d6 Be5 Be6 Rg8 Qd7+ Ka6 Rd8 Ka5 Bf7 Bf6 Qf5 Bh8 Qd3 Bf5 Be8 Bg4 Bb5 Bh3 Bc4 Nb5 Ba7 Rc8 Bb8 Na7 Ke4 Rg6 d5 Rg8 Bbd6 b8R d4 Rb1 Kd5 Bd7 Bb8 Bh3 Bgd6
2bb1b1q/2r5/1QR1BBn1/5p1n/1qqPBBp1/P2r1q1k/3B1R2/1BK1N3 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g4 h5 g5 Ra4 Na3 Ra7 Nc2 Ra8 Ne3 Qe7 Ng4 Qd8 Bb2 hxg4 Bf6 Ne7 Bxg7 Ng8 d4 Ke7 Kd2 f5 e4 c5 h4 b5 e5 f3 h5 b3 e6 c4 h6 b2 g6 b1Q a3 f2 h7 b4 Be5 b3 g7 b2 Bd3 f1Q Bf4 Kf6 e7 Nc6 e8B Ne5 d6 Qf3 d7 Ng6 Qb3 Qa2 Rc1 Ra7 Rh2 Rc7 Rf2 b1Q+ Qb2 Qb3 Be4 Q1a2 Bf7 Qb4+ Kc2 c3 Be6 Qe8 Bd2 Qac4 d8B+ N8e7 g8B Nf4 Kb1 Kg5 Rc2 Kh4 Kc1 Kg3 Bgf7 Neg6 Bg5 Nh5 Bgf4+ Kh4 Qb1 Qe3 Nf3+ Kh3 Ne1 Qf3 Rb2 c2 Bg8 Qbc3 Rb6 Q4b4 Ba2 Qcc4 Be6 Qd8 Qb3 Qf6 Rc6 Qh4 Kb2 c1B+ Kb1 Be7 Qb2 Bd8 Qb3 Re8 h8B Qf6 Bg7 Qff8 Bf6 Qh8 Bc3 Be3 Bd2 Ree7 Kb2 Rh7 Bab1 Rhe7 Bd6 Bh6 Bde5 Bf8 Bef4 Qa4 Qb6 Qa5 Bec2 Qab4+ Kc1 Re8 Bf7 Re3 Be6 Qcd5 Be4 Rd3 Bc3 Qa2 Bcd2 Qac4+
4N3/4RN2/4rn2/b1K1pb1p/BRn2r2/1RP1n2k/P1B1b1Rb/B1Rq3q w - - 0 1 legal: proof: d4 f5 e4 g5 exf5 a5 h4 c5 hxg5 cxd4 c3 a4 Be3 a3 Qe2 axb2 Na3 Qb6 Rd1 Qd8 Rd3 Ra7 Qd1 Ra8 Qa1 bxa1B Rd1 Qb6 Rd2 Qd8 Ke2 Kf7 Kd3 d5 f4 b5 g4 h5 f6 Kg6 f5+ Kf7 Rg2 e5 Nf3 b4 Bc1 b3 Nb5 b2 Nc7 Nc6 Ne8 Ra4 Be2 Rh7 Bd1 b1Q+ Bc2 Rh6 Bb2 Bb4 Rc1 Ba5 g6+ Kf8 g7+ Kf7 Kd2 d3 g5 Rf4 Ke3 d2 Kd3 d4 Kc4 d1B Kc5 d3 Ba4 Nge7 g8R d2 Bc2 Be2 Rg7+ Kf8 f7 d1N g6 Ne3 Rh7 Qd1 Ng5 Ng8 g7+ Ke7 f8R Re6 Nf7 Nf6 g8B Qh1 Ba4 Qc2 Rhg7 Qcd1 Bh7 Bd7 Rfg8 Bc8 Nc7 Bd7 Rb8 Bc8 Rb3 Bd7 Ba3 Bb2 Ne8 Bc8 Rb1 Bc1 Bb2 Bd2 Ba1 Be1 Rc1 Bg3 Rg4 Bh2 Rh4 Na7 Rhg4 Nb5 Rg7 Na3 R7g4 Rf3 Rgb4 Rf4 Bg6 Nac4 Bh7 Nfg4 Bg6 Rb6 f6+ Ke6 Bc2 Ra6 Nh6 Bd7 f7 Nf6 f8R Bc8 Rbb1 Rb6 Nf7 Bd7 Bcb3 Kf5 Rh8 Re6 Rh7 Bc6 Rb2 Be4 Bc2 B4d3 R2b3 Be4 Rf2 Kg4 Rg2+ Kh4 Nfd6 B4d3 Re7 Bf5 Nf7 Kh3
b2Nk1N1/3Rnbn1/Kb3BPr/B2rp1B1/1Q1B1r2/2pBB3/5bPq/7q w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 dxc4 e4 f5 a4 fxe4 b5 b6 Ra2 Bf5 Rb2 Bh3 Rb4 axb4 a5 Bg4 axb6 Bc8 Ke2 e5 d4 c5 f4 h5 d5 c3 g6 e3 Kd3 c2 Kc4 e2 d6 e1B f5 b3 d7+ Ke7 b7 h4 f6+ Ke6 b6 b2 Kb5 h3 f7 Ke7 Qd2 c4 Nc3 b1B Ne4 h2 Bd3 Qe8 Nf6 Na6 b8B Nc5 b7 Bf2 Ne2 Ne6 Nf4 Ra4 Bc7 Ng7 b8B Bb7 Ba7 Ba2 Bd4 Rh6 Rd1 h1Q Ne6 Ba8 Ba5 c3 Nd8 Be6 Qf4 Rc4 Bce3 c1R Rd2 Rd1 Ka6 Qh2 Nb7 Qb8 Nd8 Qb1 Qe4 Rc5 Qb7 Rd5 Bg5 Re1 Rd1 Re4 Qb4+ Rc5 Rd2 Qbh1 Bde3 Rf4 Rd1 Kd6 Rd2 Ne7 Ng8 Nc6 Bf6 Be7 f8B Bf7 Nb7+ Ke6 d8B Kd7 Bdb6 Bd8 B8e7 Bc7 Nd8 Rd5 Bbd4 Ke8 Bg5 Bb6 Bef6 Ne7 Bc5 Qa1 Bb1 Rd7 Rd4 Rc7 Bd3 Qah1 Rd7 Rc8 Bcd4 Rc5 Rb7 Rb5 Rd7 Rd5
1nRNB3/5p2/1n1b3r/1N3n2/BpP2P1B/q1Br1B2/1q2Rqb1/3NK1kn w - - 0 1 legal: proof: h4 e5 a4 b5 b4 c5 d4 g5 dxe5 gxh4 Nf3 c4 Ng1 a5 Qd3 axb4 Qb3 cxb3 axb5 Qg5 Ra7 Qf6 Ra1 Qd8 g4 Ke7 c4 Ke6 f4 d5 e4 h5 b6 b2 g5 h3 g6 h4 b7 h2 g7 d4 Be2 d3 Nc3 b1Q Nb5 h3 Ra2 Qa5 Bf3 Ne7 g8N Rh6 Ne2 Nd5 Ne7 Qa3 Nc6 Bd6 Nec3 Nb6 Nd1 Qbb2 Be3 Ra5 Rg1 h1N Bf2 h2 Bh4 Ng3 Rg2 h1N Re2 Nf5 Ra1 Na6 b8B Bb7 Bc7 Ra4 Bcd8 Nb8 Bdf6 Qaa2 Bg7 Ra3 Bh8 Rc3 Bg7 Qab3 Ra8 Q3a3 Bh8 N8d7 Rc8 d2+ Kf1 Nb8 Nd8+ Kd7 Bg7 Rd3 e6+ Ke8 e7 Kd7 Nc6 Ke6 e8B Ba8 Bc3 Bb7 e5 Ba8 Ne3 d1Q+ Bhe1 Qdd2 Bh4 Nd4 Nd1 Kf5 e6 Qe3 Be4+ Kg4 e7 Kh3 Nd8 Nf5 Ke1 Bc6 Bg2+ Kh2 Bf3+ Kg1 Bd7 Ba8 e8B Qc5 Nd4 Be4 Ba4 Ba8 Nb5 Qe3 Bg4 Bg2 Bf3 Qf2+
QRrBk1b1/1BpN4/n5q1/5P2/K4Bp1/3qBbbP/1r1B1q2/R2b1Bn1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 Kf2 f5 Nc3 f4 Ke1 Qg5 Ne4 Qf5 gxf5 h6 Nf2 h5 Ng4 hxg4 b4 g5 d4 a5 Kd2 c3+ Kc2 a4 e4 f2 b6 f3 b7 a3 Kb3 g3 e5 c2 e6 a2 b5 g2 d5 g4 b6 Nh6 d6 Nf7 h3 Na6 b8B Bb7 e7 Ng5 Ba3 c1Q Bb4 Qc6 Ba7 Rc8 Qd5 Qc3+ Ka4 Qd3 Rb1 a1Q+ Qa2 Be4 b7 Qg7 b8B Qg6 Bd2 Bg7 Qd5 Be5 Bae3 Bg3 Bba7 Rb8 Bf4 Rb2 Qa5 Bd5 Bae3 Bg8 Be2 f1B d7+ Kf7 d8B f2 Ra1 Ke8 Nf3 g1Q Ne5 Nf3 Nd7 Bg2 Bf1 Qh2 Qd5 Ng1 Qa8 Bf3 Rb1 Rc2 Rb8 Bd1 Bg2 f1B Bf3 Qf2 Bb7 Nf3 Rg1 Bg2 Rf1 Ng1 Re1 Bgf3 Rf1 Kf7 e8B+ Kg7 Bf7 Rb2+ Bb3 Bc4 Re1 Kf7 Rf1 Ke8 Re1 Bc2 Ra1 Bcd1 Bc2 Bg8 Bb3 Bde2 Bc4 Bd1+ Ka5 Qd4 Bc8 Bf7 Bf1 Qd3 Bdg5 Be6 Bf6 Kf7 Bb7 Rc8 Be7 Ke8 Bd8 Rc2 Ka4 Bb3+ Ka5 Bg8 Ka4 Rb2+
2r1k3/P1B5/n1qpBp1R/4qbN1/B2r1Brq/3BB3/b2KN1rP/nQ6 w - - 0 1 legal: proof: d4 d5 g4 Kd7 b4 h5 gxh5 a5 c4 dxc4 d5 axb4 d6 Kc6 d7 Rh7 Qd2 Rh6 Qd1 Rh8 a4 Kc5 Ra3 Kc6 Rd3 Kc5 Rd6 exd6 Nd2 Kd5 f4 Ke6 Nb1 Ke7 e4 Qe8 e5 Kd8 Kf2 Be7 Ke1 Bf6 e6 Be5 fxe5 Ke7 Bd2 Qf8 Bc1 Qd8 h6 b5 a5 c5 h7 g5 a6 c3 a7 c4 Na3 c2 Ne2 g4 Bf4 c1R Bg5+ Nf6 Kd2 b3 Bg2 b4 Bb7 b2 Ke1 b1B Bg2 c3 Nc4 c2 Nd4 g3 Kd2 b3 Rg1 b2 Ne2 Na6 Bf1 g2 Be3 Rg8 h8B Ng4 Bf6+ Kf8 Bfg5 Ba2 Bgf4 Qh4 d8B b1Q e7+ Ke8 Bc7 f6 Qe1 Qb2 Qd1 Kd7 e8B+ Ke7 e6 Qe5 Bh5 Bd7 Bf7 Rac8 Qe1 Rb1 Qc1 Rb4 Qb1 Rg6 Bg8 Ke8 e7 Bf5 Be6 Rg7 Nb2 Ra4 Nd1 Rc4 Nf2 Rd4+ Kc3 Rg5 Nh3 Rg6 Ng5 c1Q+ Qc2 Qa3+ Qb3 Qa4 Qb1 Rg8 Qd3 Qc6+ Kd2 Rc4 Qb1 Rg7 Ng3 Rd4+ Bd3 Rg6 Ne2 Rg8 Rf1 g1R Rf3 Rg2 Rh3 Rg6 Bf2 Ne3 Bg1 Qg3 Rh6 Nc2 Bge3 Qh4 Bd5 Kd7 e8B+ Ke7 Be6 Na1 Nf3 R6g4 Ng5 Qb6 Bb5 Qc6 Ba4 Ke8
Kbr1r3/bpk1rb1N/r5R1/3P4/2p1q1B1/2q1P1nN/2B2BBR/1rB1N3 w - - 0 1 legal: proof: c4 g5 d4 a5 h4 e5 hxg5 Ne7 f4 exf4 b4 axb4 d5 Nf5 Qc2 Nc6 c5 Nce7 Qc3 Nd6 cxd6 Ng8 Qc6 dxc6 Kd2 Kd7 Kd3 h5 Kd4 f5 Kc5 b3 g4 f3 a4 h4 a5 b2 g6 h3 a6 f2 g7 f4 g5 f3 g6 h2 a7 Nf6 g8B Nh5 g7 Qf6 Nc3 b1R Nb5 Ng3 Bg2 f1R Bh7 f2 g8B Re1 Ra6 f1R Na3 Qe5 Nh3 Rf6 Bc2 Qc3+ Nc4 Rb8 a8N Bg7 Bf7 Re8 Bh5 Rh6 Rb6 Be5 Bg4+ Kd8 Ra6 Be6 Nb6 Rc8 Nd7 Bf7 Nf8 Re7 d7 Rd6 Rg1 h1Q Ra2 Rf6 Nh7 Re8 Bf1 Qe4 Rg2 Rd6 Ra6 Rde6 Rh2 R6e7 Bg2 Ra1 Rb6 Ra6 Ba3 Rb1 Bc1 Qd2 Na3 Bd4+ Kc4 c5 Re6 c6 Rg6 Kc7 d8B+ Kb8 Bb6 Qa5 Ba7+ Kc7 Bd3 Qd2 Nc2 Qde3 Ne1 Q3f3 Rh6 Bg1+ Kc3 c4 Bf2 c5 Rg6 Qf6+ Kd2 c3+ Kc2 Rba1 Kb3 c4+ Kb4 c2 Kc5 Qc3 e3 Rb1 Bd2 c1B Bc2 Bb2 Bc1 Rae6 Rh1 Bh2 Kb5 Kd6 Kb6 Ba3+ Ka7 Kc7 Rg1 Reb6 Rh1 Bc5 Bf5 Rcd8 Bc8 Rbe6+ Ka8 Ba7 Rg5 Ra6 Rg4 Nh5 Rg6 Be5 Rh2 Ng3 Rg7 Kb6 Rg5 Beb8 Rg6+ Kc7 Bg4 Rc8
2rrRQ2/2b2pP1/kPR1Rn2/3n1rnp/r1q5/1K1R4/2R1B3/N3BnrR w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Nd2 Bh6 Ndf3 gxf3 g4 Bb7 h3 Bd5 g5 Be6 Bg2 Bg7 Bf1 Bg4 hxg4 Bf8 Kd2 h5 c4 d5 Kc2 Kd7 e4 Kc7 b4 Kb7 b6 a5 e5 d3+ Kb3 f2 e6 d4 b5 f3 g6 d2 g7 d3 e7 Qc7 e8R Bb4 g5 Ra6 c5 Nf6 g8R Nd5 g6 Nd7 g7 N7f6 Be2 f1N Re6 f2 Rge8 Bc3 Qc2 d1R Ra3 d2 Nf3 Be5 Nd4 Ra8 Qb2 Rd8 Nc2 Qc6 Qc3 Bc7 Na1 Re1 Qc4 d1N Bd2 N1c3 Qb4 Nce4 Ra2 Rc8 Rc2 Ng5 Bc3 Rd1 Be1 Rd4 Qa3 Ra4 Rd8 Rf8 Rdd6 Rfd8 Qb4 Kb8 b7 Ka7 b8R Qa6 Ra8+ Kb7 b6 Qd3+ Kb2 Qc4 Rb8+ Ka6 c6 Nh2 Rd7 f1R Qf8 Rf5 Rdd6 Nf1 Rd7 Ra3 Rdd6 a4 Rd7 Bf4 c7 Rg3 Rdd6 Rg1 Rc6 Bg3 Rc3 a3+ Kc2 Qb5 Rd3 Qc5+ Kb3 a2 Nc2 a1R Ra8+ Kb5 Rb8 Ra4 Na1 Qc1 Rc2 Ka6 Rcc6 Re8 Rc2 Rcd8 c8R Be5 R8c6 Bc7 R2c3 Rc8 Rc2 Red8 Rb7 Be5 Rbe7 Bc7 Re8 Qf4 Qh8 Qd4 Qf8 Qc4+
1R5N/1pk1K1rN/1Rb2R1n/Nr4B1/p2bPr2/r2r2N1/1b1b1P2/1N3Bn1 w - - 0 1 illegal: No proof kernel
BrbqQ3/1B4K1/1b2B3/BRpP1RP1/1B4n1/r2b1B1n/2p3np/1Nk3r1 w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 g5 b4 axb4 Kf2 d5 Ke1 dxc4 h4 Qd5 h5 Qd4 Na3 Qd5 Nc2 Qd4 Ne3 Qd8 Qc2 h6 Qh7 Ra7 Nf5 Ra8 Nh4 gxh4 Qxh6 Qd5 Qh7 Qd8 Kf2 Kd7 Ke3 Kc6 Ke4 Kc5 a4 b5 d4+ Kc6 g4 b3 h6 f6 g5 h3 e6 h2 Kf5 Kd5 Kg6 Ke4 a5 c5 d5 b4 e7 f5 e8B b2 a6 b1B a7 c3 Ra5 b3 Bf7 b2 Rb5 f4 Bd2 f3 Be6 f2 Bg2+ Kd4+ e4 Kd3 e5 Kc2 Qe7 f1N h7 Na6 Qe8 Bd6 Nf3 Ne3 Rf1 Bc7 Kg7 Nh6 Be1 Kd1 Nd2 Nhg4 Rf5 Bd3 Nb1 c2 Bf3+ Kc1 Bb4 Ng2 Ba5 Rb8 a8B Bb6 Bb4 Rf8 h8B Rf6 Bg8 Nc7 e6 Rh6 e7 Rh3 Be6 Rg3 Kg8 Rh3 Bhc3 Rg3 Kg7 Rh3 Na3 b1R Ba5 Rg3 Bcb4 Rb3 Nb1 Ra3 Kg8 N2e3 Kg7 Rg1 Qf8 Ng2 e8B Nf2 Bec6 Nh3 Bcb7 Ne8+ Kh7 Nf6+ Kg7 Ng4 Qf7 N2e3 Qe8 Ng2
2B2B1q/1BB3b1/RK1P3k/bNr5/N2r4/1Rp1bR1n/p4pP1/2rqn1B1 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 Bg4 e4 f5 h3 g6 hxg4 fxe4 f5 g5 Qf3 Nd7 Qg3 Nb8 Qf4 gxf4 Kf2 Kf7 d4 Kg7 b4 e5 d5 c5 d6 h5 f6+ Kh6 f7 a5 b6 h4 b5 c3 b7 h3 b6 h2 Nh3 e3+ Kf3 a4 Ke4 c2 Kd5 e2 Be3 e1B Bb5 c1B Bd3 c4 Kc5 e4 Nd2 a3 Bc2 Ne7 Nf3 Bg7 f8B Nd5 Nf2 Nc6 b8B Ncb4 b7 Ra4 Rf1 h1R Bc7 Nd3+ Kb5 Qb8 Nd4 Bb4 Nd1 c3 Rf3 Ne1 Bg1 e3 Be4 e2 Nb2 Be3 Bf5 Qd8 b8R Ra5+ Kc6 Rc5+ Kb7 Rh4 Bc8 Qf6 Nb5 a2 Ra8 Rh1 Ra6 Qd8 Na4 Rg8 Rf1 f3 Rb1 Nf4 Rb3 Nh3 Kb6 Rh8 Be7 Re8 Bf8 Re4 Bb7 Rd4 g5+ Kh5 g6 Kh6 Be7 Qh8 Bf8 Nc2 Rf2 e1Q Bc8 Qd1 Rf1 Ne1 Bb7 Kh5 Rf2 Bf6 g7 Kh6 g8B+ Bg7 Be6 Re5 Rfb2 Rc5 Bec8 f2 Rd2 Rdd5 Rd3 Rd4 Bh2 Rf1 Bg1 Qe2 Ra7 Nc2 Bf5 Rc1 Rb1 Bf4 Bfc8 Qd1 Ra6 Ne1 Rf3 Be3 Rb3 Ba5+
nbn5/rRP3k1/3p4/3r1R1r/r2b1BBp/3RK1R1/1RQpn2P/R2q1N2 w - - 0 1 legal: proof: d4 b5 b4 e5 f3 exd4 a4 c5 axb5 cxb4 e4 g5 e5 Nh6 Nc3 Ng8 Nce2 Bb7 Nf4 Be4 fxe4 gxf4 Kd2 f5 c4 Kf7 g4 a5 g5 h5 g6+ Kg7 c5 b3 b6 h4 c6 d3 e6 f3 b7 a4 e5 b2 e7 b1R e8R f2 e6 a3 e7 f4 Qc2 f3 Ne2 a2 Ke3 Na6 b8R Ra7 Qc5 Rb5 Ba3 Nc7 Qc2 Rhh5 Rb7 Na8 Ng3 Rbd5 Bh3 f1R Bc1 f2 Bg4 Ra4 Rab1 a1B R1b2 Rg1 Nf1 Ra7 Bf3 Rg4 Bd2 Rga4 Bg4 Qb8 Rd8 Qd6 e8R Ne7 Bc1 Nc8 Re5 Be7 Rf5 Bf6 Kf3 Bd4 Bf4 Be5 Rb1 Bad4 R1b2 d2 Rg1 Qf6 Ke2 Bb8 c7 Qb6 Rg3 Qb3 Rd3 Bc3 Ke3 d6 Re8 Bf6 Re4 Be5 Reb4 Bc3 Ra2 Qb1 Ra1 Qd1 Rb2 Bd4+ Ke4 Kh8 g7+ Kh7 Ng3 f1N g8R Ne3 Rgg5 Ng2 Nf1 Kh8 Be2 Kh7 Rgg3 Kh8 Bg4 Kg7 Bg5 Nf4 Bh6+ Kg8 Bg5 Ne2 Bf4 Kg7 Kf3 Bc3 Ke3 Bd4+
K1N3nk/pbp1nQ2/1qPB1n2/q3q3/BP4n1/RR6/p2R1RR1/3Rn2r w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 Nh3 bxa4 Ra2 e5 Na3 e3 Ra1 e4 Nb1 Na6 Ng1 Rb8 Be2 Rb5 Bf1 Re5 g3 f5 Nc3 h6 Nd5 h5 Nf6+ Ke7 Ng4 hxg4 Ra2 Ke8 Ra3 Be7 Ra1 Bg5 fxe5 f4 Bg2 f3 Bf1 Bf4 gxf4 Qd7 Bc4 Qd5 Bf1 Qd8 b4 Kf7 h4 g5 d4 Kg7 c4 g3 d5 a3 c5 f2+ Ke2 g4 f5 g2 c6 g3 h5 Bb7 h6+ Kh7 d6 Ba8 d7 Qf6 d8R Qg5 e6 Qg6 f6 Qg4+ Nf3 g1Q f7 g2 f8R Qg6 e7 Qd6 e8R Qf6 Qb3 Nb8 Nd2 Bb7 Nc4 Qe5 Nb6 Qa5 Rd2 Nd7 Nc8 Ndf6 Red8 Ba6+ R8d3 Qh2 Rb1 g1Q Qf7+ Qg7 Bb2 a2 Be5 Qb6 Bd6 Qe5 Rb3 Qea5 Bg2 f1N Bf3 Nh2 Rhd1 Nhg4 Ra3 Nd5 Rb3 N4f6 Ra3 Bb7 Rdb3 Nde7 Bg4 Qa4 Be6 Ba6+ Bc4 Qaa5 Bb5 Bb7 Ba4 Ba6+ Qc4 Ne8 Rf2 Nef6 Ke1 e2 Qf7 Qd4 Rg2 Qde5 Kf2 e1N Ke3 Nd3 Rdf2 Qeb5 Kd4 e3 Rdd2 e2 Rd1 Nc5 Ke5 Nd3+ Ke6 e1N Rdd2 Ne8 Kd7 Ne5+ Kd8 Ng4 Rd1 Ng8f6 Rfd2 Qbb6 Rdf2 Rf8 Rfd2 Kh8 h7 Rg8 Rbg3 Nd7 Rgf2 Qge5 Rgb3 Ne3 Rf5 Rg1 Rff2 Qbb5 Nb6 Ng4 Qf3 Kg7 h8R Qbc5 Rhh2 Rh1 Rhg2 Kh8 Qf6+ Ng7 Qf7 Ng8 Rbb1 Nf5 Rbb3 Be2 Kc8 Ndf6 Kb8 Ba6 Nc8 Nfe7 Ka8 Qab6 Qe6 Qca5 Qf7 Bb7+
1rRR1Q2/3q1R2/r4b1B/Ppn1R2p/4B1b1/RpPn1q2/1RNKpk2/r7 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d3 h5 d4 cxd4 gxh5 g6 h4 Ra7 h6 Na6 h7 Ra8 h5 Nb8 h6 Nc6 Nc3 Rb8 Nd5 Ra8 Nf4 Nb8 Nh5 gxh5 f4 Kf7 a4 Kf6 c3 e5 a5 b5 Qa4 d5 Ke2 b3 Be3 d3+ Kd2 d4 Bg2 e4 Nf3 Ne7 Rhe1 Qd7 Ra3 Nec6 Qb4 Ne5 Re2 Bc5 Ne1 Be7 Nc2 Na6 Bh1 Rd8 h8R Nc5 h7 Ra6 Rg8 Re8 h8R Rf8 Rgg2 Re8 Ke1 d2+ Kd1 Ned3 Rhg8 Kf7 f6 Ke6 f5+ Kd5 f7 Bf6 Bh6 e3 f8R Ke4 Rf7 Kf3 Rh8 Rd8 Rh2+ Kg3 Be4 Rf8 Re1 Re8 Ke2 d1R Rhf8 Ra1 Rh8 Ree6 Rd8 Reb6 Rf2 Rb8 Rh2 Nb7 Qe7 Nbc5 Qf8 Nc1+ Kd1 d3 Ree2 d2 Rhf2 Bh4 f6 Bg5 Rf5 Bh4 Re5 Bg5 Re1 N1d3+ Ke2 Bh4 Rb1 Bg5 Rb2 Bh4 Rfe7 Bg5 f7 Bf6 Bf5 Kg2 Be4+ Kg1 Kf3 e2 Ke3 d1Q Ree8 Qf1 Kd2 Bb7 Rc8 Qf3 Red8 Kf2 Qh8 Rba8 f8R Rb8 Rf7 Bd5 Qg8 Be6 Qf8 Bg4
1N3N2/Q3N2p/n3p1Kp/brRrb1NR/2P3b1/3Pkp1N/3N3B/2n1q2b w - - 0 1 illegal: Other
1BB1r2r/5P2/Qp2q1b1/2p2P1B/1rnR1pN1/1k1KB1B1/1q1p4/B3b1qN w - - 0 1 illegal: No proof kernel
2RN1b2/P5n1/2pBPBkp/1pR2b2/3b2r1/3BnRR1/2K2pR1/2b2rbN w - - 0 1 legal: proof: c4 a5 g4 f5 h4 d5 b4 dxc4 bxa5 g5 f4 e5 Qb3 fxg4 f5 g3 Qe3 g4 Qf4 Qg5 hxg5 exf4 Kd1 Kf7 e4 b5 d4 h6 a4 g2 e5 c3 a6 f3 g6+ Kg7 e6 c6 d5 f2 a7 g3 d6 Na6 a5 Nb4 d7 Be7 d8B Bf6 a6 Bb7 Rh5 Bg5 Ba3 Be3 Bd3 Bd4 Ne2 g1B Nd2 g2 Nf3 Bc8 Ng5 Nf6 Nf7 Rg8 Ng3 Bd7 Nh1 Nc2 Bd6 Bh2 Ra3 g1B Rg5 Rb8 a8R Ne8 a7 Ne3+ Kc1 Rb6 Rc8 c2 B8e7 Bf4 Nd8 Ra6 Rg3 Ra5 Rc3 Ra1+ Kb2 Rf1 f6+ Kh8 f7 Kg7 f8R c1B+ Kb3 Bfe5 Rf5 Bc5 Rff3 Bed4 Bg5 B5a3 Rc5 Bb4 Bgf4 Kf6 Rg2 Ng7 Rgg3 Be8 Rg2 Nh5 g7 Bg6 Rgg3 Bf5 Bg5+ Kg6 Rg2 Rf8 g8R+ Ng7 Rgg3 Be4 Rg2 Rf4 Bf6+ Rg4 Rf8 Nd1 Kc2 Bf5 Rfg3 Ba5 Nb7 Bd8 Rf7 Be7 Nd8 Bf8 Bfe7 Be4 Rff3 Bf5 Bf6 Ne3+
4n1rB/p1rnBB2/1bR1B3/PKQBP3/1q1R2n1/k2nNqqB/6b1/3nb3 w - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 b4 g6 Nc3 g5 Nd5 exd4 bxc5 gxf4 g5 Nc6 Ne3 Nb8 Ng4 hxg4 Kd2 Ke7 Kd3 f5 Kc4 b5+ Kb4 d5 e4 f3 c4 f4 h4 g3 a4 f2 h5 g2 a5 d3 h6 f3 h7 d4 c6 Kd6 c7 d2 g6 d3 g7 Bh3 c8B Nf6 g8B Nbd7 Qc2 d1N Ra3 d2 Qa4 Nb2 Re3 d1N Re1 Ne8 Bg5 Qc7 Be6 Rg8 Ne2 g1B h8B Bg2 Bb7 Rc8 Qc2 Qb8 Bc6 Rc7 Nc3 Bh6 Be2 f1N Rh4 f2 Bcd5 Nh2 Bh5 f1Q Bhf7 Bb6 Re2 Qf4 Qc1 Bg7 Rc2 Qf3 Bh3 Ng4 c5+ Ke5 c6 Kd4 Be7 Nd3+ Ka3 b4+ Ka4 b3 Kb5 b2 Qg5 Rb7 c7 Be5 c8B b1Q+ Bb3 Qd6 Nd5 Rc7 Ne3 Bg7 Qf5 Qdg3 Rc6 Qb2 Bb7 Qa3 Bbc4 Kc3 Bce6+ Kb2 Qc5 Bc3 e5 Be1 Ba8 Ngf6 Rd4 Ng4 Rcd6 Qc3 Bad5 Qa3 Rc6 Qc3 Rb4+ Ka3 Rd4+ Qb4+
b3NR2/3N2b1/rRp4r/1NP5/r3n1R1/P2BbNbn/1kNq1B1K/2bb3b w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Qd4 g5 Qc3 g4 Qg3 hxg3 e4 Kf7 f4 Ke6 c4 g5 h4 d5 a3 b5 h5 d4 c5 g2 Kf2 b3 Kg3 b2 h6 b4 h7 b3 Be2 d3 Nc3 b1R Nh3 g1B Bb2 d2 Nf2 d1B Ra2 c6 Bb5 Bg7 Bd3 Ne7 Rh3 Nd7 Ba6 Nd5 Nd3 N7f6 Bc4 Ra4 Kg2 g3 Rh5 g4 Rg5 Bb7 Nb4 Bf2 Nc2 Ba8 Bd3 Ra6 Ba1 b2 Nb5 Be1 Kg1 g2 Kh2 Bh4 Rg6 Qa5 Rg5 Qd2 f5+ Ke7 e6 Nf4 e5 Nh3 Nbd4 Ne4 Nf3 Rc1 Rg6 b1B Rb2 Ba2 Rb6 Bd5 Bd4 g1B+ Kh1 g3 Bf2 Rb1 Rg4 Rb4 Kg2 Rba4 f6+ Kd8 e7+ Kd7 e8N Ke6 f7 Kf5 e6 Bh2 Nfe1 Ke5 f8N Bg1 Ne3 Kd4 e7 Kc3 Nd6 Bh2 Nb5+ Kb2 e8N Bg1 Be2 Bh2 Nd7 Bg1 Kf3 g2 N3c2 Bh2 Ndf6 g1B Kg2 B2g3 Nf3 Bf4 Nd7 Be3 Bc4 Bh2 Bd3 Bhf4 Nh2 Rf8 h8R Rf6 Nf3 Rh6 Nfe5 Ng3+ Kh2 Bh1 Nf3 Ne4+ Rg3 Qa5 Rf8 Bc1 Nb8 Qd2 Nd7 Be3 Rg4 Bg3+
nR1B1q1q/4bQ2/pnn3n1/6N1/knRrr2N/1RR2Pr1/P1R1b3/1rRK4 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 h4 Kd7 d4 Kc6 c4 g5 h5 e5 f3 b5 h6 g3 h7 b4 Ne2 g1N Bf4 e3 Na3 g4 Rh2 a6 Rf2 g2 Rf1 g3 Rb1 b3 Bh6 b2 Qc1 e4 Qc3 Ne7 Qd2 Bf5 Rd1 b1R Qc3 Nd7 Bf4 Ng6 Rc1 Nb6 Qb3 Rg8 h8R Nh3 Bc7 g1Q Rh4 g2 Nc2 Be7 Nc3 e2 Ne3 Qf8 Bd8 Ng5 Kd2 e1N Kd1 Qh1 d5+ Kb7 d6 Kc6 d7 g1N Rf4 Qh8 Ng2 e3 Ne4 Ne2 Nh4 Ne6 Ng5 Bd3 Rf2 N2d4 Rb2 Nec2 Rg4 Kb7 c6+ Ka7 c5 Nb4 c7 Ndc6 c8R Nc7 Qf7 e2+ Kd2 e1R Rb3 Kb7 Rgc4 Re4 Kd1 Ra7 Rc2 Nca8 Rcc3 Nd4 Rb8+ Kc6 Rc8+ Kb5 c6 Rg7 c7 Nc6 Rb8 Ka4 c8R Na5 R8c4 Nc6 Bc7 Rd4 d8R Re4 Rd6 Rg8 Bd8 Rd7 Rd5 Rg7 Rdc5 Rdd4 Ne6 Nge5 Rc2 Rg3 Ng5 Ng6 R4c3 Rd5 R5c4 Rd6 Rbb2 Rdd4 Rbb3 Be2+
2BrRbn1/4npb1/4QP2/1RP5/1R2rqpR/2R2R2/1K1k1rbn/2Nrr2N w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 Bd2 e3 Bg2 exd2+ Kf1 c6 Bh3 cxd5 Kg2 d4 Kg3 Ba6 Bf1 Bc8 Kg2 Rh5 Na3 Rh6 Nb1 Rh8 b4 Ke7 h4 Kf6 f4 Kf5 Kf2 Ke4 c4 g5 b6 a5 f5 d5 c5 d3 h5 d4 h6 a4 f6 a3 h7 a2 b7 Bh6 b5 Ra5 b6 Bg7 Rh3 Qd6 Rf3 Nc6 b8R Qf4 b7 Nce7 Qb3 d1R Nh3 Rd2 Ke1 g3 e3 Rg2 Kd1 g4 Kc1 d2+ Kb2 Rf2 Ba6 d3 Qb6 d1R+ Nd2+ Kf5 Qc6 g2 Rc1 g1N Rc3 Re1 e4+ Ke5 Qb6 Kd4 e5 Ra4 e6 Bd7 Qb3 Bc6 Qb6 Nh6 Qb3 Rd8 h8R Nhg8 Rh4 Bd5 Ra8 Rc4 b8R Be4 Rb5 a1B+ Ka2 Bb2 Bc8 Bc1 Ra4 Bb7 Rab4 Ba8 Re3 Nf3 Ka1 Nh2 Rf3 Bc6 Qa2 Bd5 Nb3+ Ke4 Qa6 d2 Qb6 d1R Kb1 Be3+ Nc1 Bd2 Kb2 Kd4 Rg3 Bg2 Rgf3 Ng6 e7 Ke4 e8R+ N6e7 Rc2 Be3 Qe6+ Kd4 Ne2+ Kd3 Rc3+ Kd2 Nc1 Rcd4 Ng1 Re4 Nge2 Qe5 Ng3 Beh6 Nh1 Qf4 Rfe3 Bf8 Rf3 Bhg7
3b3N/2R2n2/nbr1RRpn/k1p1N1P1/bRn2BR1/1rP5/1Q2K2n/2r1R2q w - - 1 2 legal: proof: g4 b5 a4 d5 axb5 h5 e4 dxe4 g5 Qd3 f3 exf3 Bh3 Qd8 Bg4 hxg4 d4 Kd7 h4 e5 b4 a5 h5 f5 d5 g6 b6 g3 c3 e4 b5 g2 b7 f4 b6 e3 d6 Kc6 h6 Kb5 d7 f2+ Ke2 f1N h7 a4 Nf3 g1B Ne5 a3 Qe1 f3+ Kd3 e2 Qd2 e1N+ Ke4 a2 Rh4 f2 Qe2+ Nd3 Kf3 Be7 Nd2 Ka5 Rg4 Na6 b8R Nh6 b7 Ne3 Ne4 f1N Nd6 Nc4 Bf4 Bb6 Qb2 c5 Re1 a1R Ke2 Rc1 Ndf7 Qg8 d8R Bd7 Re8 Nh2 Rbd8 Rc8 b8R Rc6 Rdc8 Bed8 Re6 Qe8 Rc7 Rf8 Nf3 Nde5 Nh8 Nef7 Ne5 Qe7 Rf6 Qd6 Re6 Qd5 Rf6 Qh1 Rbb7 Ba7 Rb4 Bb6 Re6 Nfd6 Nhf7 Re8 h8R Re7 Rf8 Be8 Nh8 Ndf7 Rc8 Rb7 Rc7 Rd6 Rf6 Ba4 Re8 Rc6 Ree6 Ne3 Re4 Nc4 Rd4 Ba7 Re4 Rb3 Rd4 Bb6 Re4 Na3 Rb4 Nc4
b3N2q/1b2b2r/3BKRP1/rnN2nr1/pRN3kp/1n1B4/PR2n2n/5R1R w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 h5 f4 h6 gxh6 Qe2 h5 Qd3 h4 Qe3 fxe3 Ke2 Kd7 f4 Ke6 g4 h5 d4 b5 c4 a5 c6 h3 c5 h4 g5 Kf5 c7 e5 c6 b4 g6 a4 d5 b3 d6 b2 d7 h2 Nd2 b1N Nh3 Bb7 c8R Rh7 c7 Nc6 Ng1 Nge7 Nh3 Na5 Rb8 Kg4 c8R Na3 f5 Nb5 f6 Nf5 f7 Be7 f8R Nb3 Rf6 Qh8 d8N Ra5 Ng5 Ba8 Ba3 Bb7 Kd1 e2+ Kc2 e1R Nc4 e3 Kd3 e2 Bd6 Rc1 Rc6 e1N+ Ke4 Ng2 Kd5 e4 Nge6 e3 Bd3 e2 Nc5 e1N Nde6 Nf3 Nc7 Rg1 Ne8 Ba8 Ke6 Nf4+ Kd7 Rg3 Rcb6 Ne2 Ke6 Rg2 Rhf1 h1B Rac1 Nh2 Rb1 Na7 Rb4 Nb5 Rb7 Kh5 Rb6 Rg5 Ra1 Bhb7 Rh1 Kg4 Raf1 Na1 Rb2 Na7 R6b5 Nb3 Rb4 Nb5
1KRnn3/Qrp2r1b/1R2pB2/NP4Rb/4k2N/1Rq1b2r/1bP1Rb2/4R1q1 w - - 0 1 illegal: No possible last move
3bNq2/1B1p1b1n/P3rrB1/kr1BBpR1/5P1q/n2bB1N1/2bK1BnQ/8 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 Ra2 h5 gxh5 c5 Ra3 c4 Rd3 cxd3 c4 g5 f4 b5 h4 f5 e4 g4 c5 d2+ Ke2 g3 h6 g2 e5 b3 e6 b2 h7 d3+ Ke3 b4 c6 b3 a5 Be7 a6 Nf6 c7 Nc6 h5 Bb7 c8B Nb4 h6 Rf8 h8B Nc2+ Kf2 Bd5 h7 Na3 Qc2 d1B Ke1 d2+ Kf2 Rb8 Ke3 Rb5 Ne2 g1R Rh2 Rg6 Nbc3 b1B Bg2 b2 Bb7 Qb8 Be4 Kd8 Rh5 Kc7 Rg5 Kb6 Bg2 Bc4 Nd5+ Ka5 Nc7 Bd3 Bg7 Ba2 h8B Nh7 Bd4 b1Q Bhe5 Re8 Qb2 Rf6 Bc5 Qc2 Ba7 Qc6 Ng3 Bac4 Bh1 Qg2 Qa2 Qh2 Bhe4 Qh4 Bf3 Bb4 e7 Bf7 Bfd5 Ba4 Bad4 Bc5 Qc2 Bb6 Qa2 Bb1 Ke2 d1N Ke1 Qc8 Qh2 Bd3 Bg1 Bac2 Bf2 Be4 Ke2 Ne3 Ke1 Qd8 Ke2 Ng2 Bce3 Bed3+ Kd2 Qc8 Na8 Qc5 Nc7 Rc8 Ne8 Rcc6 Ng7 Rce6 e8B Bg8 Bg6 Qf8 Ne8 Bf7 Bb3 Bc7 B3d5 Bd8
7r/rP1B2B1/1p1qB1r1/1P1Q1Nn1/4bn1K/Br1p3b/1bBB4/k2qR1Nq w - - 0 1 illegal: No proof kernel
2N1BN1n/7p/3R3b/n1r1q2b/rnn1q1B1/r2pNP2/NR1B2NP/Kq5k w - - 0 1 legal: proof: e4 c5 a4 g5 d4 cxd4 f3 f5 Kd2 fxe4 Qe2 b5 axb5 g4 Qf2 g3 Kd1 gxf2 c4 Kf7 Kc2 Kg6 b4 Kh5 Kb2 Kh4 g4 a5 g5 d5 g6 e5 b6 d3 c5 a4 g7 a3+ Ka2 d2 b7 d1Q b5 d4 c6 d3 b6 e3 c7 e2 Nh3 e1N Nc3 e4 Kb1 a2+ Kb2 e3 Rb1 a1R Ng1 e2 Bh6 Qe7 Nd5 R1a3 Ne3 Nc6 b8N Qe4 b7 R8a4 Bh3 f1N Na6 Nc2 b8N e1Q Nb4 Nge7 g8B Na5 Ne2 Nd2 Bf7 Ng6 Rg1 Bg4 c8N Bh5 Na2 Nb4 Bg4 Qc2+ Ka1 Ndc4 Be8 Qec3+ Rb2 Qce5 Bf4 Bh6 Nd7 Rf8 Rc1 Rf5 Nf8 Nh8 Re1 Qe6 Rg1 Rc5 Rgb1 Nd5 Rb6 Nb4 Rb2 Q6e5 Rd6 Ng6 Nd5 Nh8 Bd2 Bf7 Bh5 Kh3 Bg4+ Kg2 Nef4+ Kh1 Ng2 Bh5 Nde3 Qb1+
6rb/1NP1pr1R/Bk3r2/npb4n/rPB2B1N/B6q/3rBr2/R2KR2b w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 Qd3 cxd4 Qc4 a4 Qb3 axb3 g4 b5 f4 d5 c4 Kd7 a4 Kc6 f5 h5 g6 b2 a5 e3 c5 e2 a6 d3 g7 d2+ Kf2 d1R f6 e1B+ Ke2 h4 f7 d4 a7 h3 g5 d3+ Kf3 h2 g6 d2 Ke2 Nf6 g8B Qd7 g7 Bf2 Nf3 Qh3 Nh4 Bb7 Nc3 b1R Ba3 Nh5 Ne4 Rb2 Nd6 Rh6 Rg1 Rf6 Rh1 Kc7 c6 Kb6 c7 Bc5 Rg1 Bg2 Nb7 Nc6 Rh1 Rb8 a8B Na5 Rg1 Rc1 Rh1 Rcc2 Kd1 Ra2 Be2 Rc8 Re1 h1R Bh7 Rhf1 g8R Bg7 f8B Rf7 Bhd3 Bh8 Rg7 Bh1 Rh7 R1f6 Bh6 Rg8 Bf4 Rcb2 Bc4 Rc2 Bb2 Ra4 Bc1 Rc3 Ba3 Rf3 Nd8 Rf2 Bb7 Bd5 Ba6 Bh1 Kc2 d1R Nb7 Rd2+ Kc1 Rc2+ Kd1 Rd2+
3bB1N1/P1Nb1p2/2NKnr2/2q2P1R/rp2r3/N1rrB2r/1b2N2k/Q2nN3 w - - 0 1 illegal: No possible last move
n3BN2/2RB4/1b1PqB1b/2rN1pr1/p2NB1rR/Pr2B3/n1r3b1/1kb1K3 w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g5 Qf3 gxf4 g5 Qd5 Qd1 Qd8 Qg4 hxg4 c4 Kd7 h4 Kc6 d4 f5 h5 e5 g6 b5 g7 a5 a3 a4 h6 b4 h7 f3 Bd3 f2+ Ke2 f1R Nc3 e3 Nd1 b3 Bb1 b2 Nh3 e4 Ng5 g3 Rh3 g2 Ne6 g1B Ra2 Rf4 Nf2 Qd5 Nd1 Ne7 g8N Na6 Ke1 e2 Ng5 Bh6 Ra1 Qe6 Ra2 Nd5 Rc3 Rg4 Be3 Nb6 Nf6 Rg8 h8B Nb4 Nfh7 Ra5 Nf8 Bb7 Bf6 Na8 Nf3 R8g5 Rc2 Rb5 Nc3 Ra5 Ra1 Na2 Nd5 Rb5 Rc1 Ra5 Bc2 b1R Bd3 Rb2 Rab1 Rc2 Rb4 Bh2 Nb6 Bg1 d5+ Kc7 c6 Kd6 c7 Rc5 Nd4 Bc6 Be7+ Ke5 c8B Bb7 d6 Bc6 Bd2 Be3 Nd5 Bf4 Kf2 e1R Bd7 Re3 Be8 Reg3 Ke2 e3 Ke1 e2 Be4 Rb3 Be3 Bb7 Kf2 e1B+ Kf1 Ra5 c5 Bf2 c6 Rac5 c7 Bc6 c8B Bg1 Ke1 Bb7 Nc3 Bd5 Bh1 Bg2 Nd5 Ke4 Bcd7 Kd3 Bd8 Bf1 Bf6 Bg2 Nb6 Kc3 Nd5+ Kb2 Rc4 Ra5 Rc7 Rab5 Rd1 Rbc5 Rd2 Kb1 Re2 Bh3 Be4 Bf1 Rh2 Bg2 Bf2 Bc1 Rh4 Bh2 Be3 Be5 Bg7 Bf6 Bh8 Be7 Bf6 Bd8 Rc6 Bb6 Rc8 Rf4 Rc7 Rfg4
n2r1R1r/2bbb1P1/Nk1n3r/Rp5q/nRQ1R2R/1P4KB/4r2p/2R2N1n w - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 a3 b3 exf6 Nc3 f5 Bb2 axb2 Nb1 f4 Kf2 Kd7 e4 c5 g4 Kc7 a4 b5 d4 f5 g5 h5 a5 f3 g6 f4 e5 h3 a6 h2 a7 c4 d6+ Kb6 e6 h4 d5 h3 e7 c3 e8R c2 g7 c1B d7 Be7 d6 Na6 Ne2 Nc7 Na3 b1N Qd3 Nc3 Bg2 Nh6 Rf8 Na4 Nc3 Nf5 Bf1 Qe8 d8R Bd7 Ne2 Qh5 Rde8 Rd8 Ng3 Na8 Nc2 Bd2 Bg2 Ba5 Qc4 Rh6 Rhc1 Rh8 Nf1 h1N+ Kg1 f2+ Kh2 f3 Nb4 Rh6 Na6 Rh8 Ra2 Rh6 Re2 Rh8 Re4 Rh6 Nd2 f1R Rh4 Re1 Nf1 f2 Qc2 Ne3 Qc4 Re2 Rff4 Rh8 Ref8 Nf5 Re4 Be6 d7 Nd6 Rff4 Rh6 Rfg4 Rdh8 d8R Bd7 Nd2 f1R Rf8 Rf4 Nf1 Nf2 Kg3 h2 Bh3 Rf5 Rgf4 Rc5 Rfg4 Rc8 Rgf4 Nc7 a8R Rd8 Ra7 Na8 Nc5 Bc3 Ra5 Be5 Na6 Nc8 Qf7 Bc7 Rb4 Nd6 Qc4 Ra2 Rd4 Re2 Rde4 Nh1+
K3Bnr1/B2r4/BbR1p1rP/3bP3/1BQB3B/1q1n2n1/2Nr1pk1/1Rq4n w - - 0 1 legal: proof: f4 b5 g4 g5 c4 d5 a4 dxc4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 Kd7 e4 Kd6 d4 f5 b4 a5 h4 c5 g6 f3 Ke3 f4+ Kf2 a4 d5 Ke5 g7 e6 h5 c3 d6 c4 b6 a3 b5 c2 h6 g3+ Ke1 a2 Kd2 g2 Kc3 f2 Kb4 f3 Kc5 c3 b7 Ne7 g8B Ra7 b6 Nd7+ Kb5 Nf5 Kc6 Ng3 Bf7 Rg8 Ne2 g1R Rb1 a1R b8B R1a2 Bb2 c1Q Nd4 Kf4 b7 c2 Ba6 f1N e5 f2 Be8 Qa5 Qh5 Qb4 Qe2 Qb3 Qc4 Ke3 Rh4 Nh1 Bc3 Rb2 Bb4 R1g6 Rh3+ Kf4 Rc3 Nfg3 Bc7 Be7 b8B Nf8 d7 Bc5 d8B Bb6 Bh4 Rb7 Bcd6 Rd7 Ba7 Kg4 Bdc5 Kh3 Nb5 Kg2 Na3 Qd2 Be3 c1N Bd4 Nd3 Nc2 Qc1 Qb5 Rdg7 Qc4 Bd7+ Kb7 Bc6+ Kb8 Rb7+ Ka8 Bd5 Qb5 Rbg7+ Rc6 Rd7 Qc4 Ra2 Na1 Re2 Nc2 Rd2
4b2K/5p2/q2N3b/2Bpn3/1RNBR3/1R2nBBP/brnq1Pr1/2Bbk2n w - - 0 1 illegal: No proof kernel
1q3b1r/R1RQ1pK1/2qrR1nn/R7/N1pN3k/1R1b3n/qBP1PpR1/6b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 d4 exd4 axb5 g5 Bh3 gxf4 g5 Bb7 Be6 Bc8 Bg4 hxg4 Kf2 Ke7 h4 d5 b4 c5 b6 a5 b7 d3 h5 f3 Kg3 d2 Kf4 d4 Ke5 g3 h6 g2 b5 c4 h7 a4 b6 d3 g6 a3 g7 a2 Rh6 Bf5 Rh5 Ra6 Qe1 d1Q Qd2 Nh6 g8R Be4 Nc3 Nc6+ Kf4 Kf6 b8R Qd7 b7 Ne5 Bb2 Be7 Rbe8 Qc6 b8R Qb1 Na4 Bf5 Qd1 d2 Rb3 Bd3 Rc8 Rb6 Rc7 Ra6 Rhg5 Rb6 Ra8 Ra6 Raa7 Rb6 Qe1 d1N Qd2 Nf2 Rg8 Ra6 Re8 Kg6 Rg8+ Kh5 Qd1 Be4 Qd7 Kh4 Rg6 Bd3 Re6 Rf8 h8R Nh3+ Ke3 f2 Kd4 Rc8 Rg8 Ng6 Rg7 Rh8 Nf3+ Kh5 Rg8 g1B Rg7 Qe1 Rg8 Qb4 Rg7 Qb8 Rg8 Ngf4 Ke5 Rb6 Nd4 Kh4 Rg2 Ra6 Rb1 a1Q Re1 Qa2 Ra1 Bb4 Kf6 Ng6 Kg7 Be7 Rc8 Ra5 Rcc7 Rd5 Rb5 Rd6 Rba5 Qab3 Ra3 Qa2 Rb3 Bf8+
R1B1r2B/B1Nqr3/K1pNPp2/4r2b/1b3pn1/Nn2RPnN/3kN1b1/7n w - - 0 1 legal: proof: c4 b5 h4 d5 a4 dxc4 axb5 e5 Qb3 g5 Qe3 gxh4 Qf4 exf4 e4 Kd7 Ke2 Ke6 d4 h5 b4 a5 g4 c3 Kd3 c2 Kc4 h3 d5+ Ke5 g5 h2 g6 a4 g7 h4 f3 h3 d6 a3 b6 a2 Kb5 Kd4 e5 Qh4 b7 Qh6 e6 Rh7 d7 Ne7 d8N Nbc6 b8N Nf5 g8N Qg7 Nf6 Ng3 Na6 Bd7 Bb2+ Ke3 Ne2 c1R Nb7 Be8 Ne4 Re1 Ng5 Ne5+ Ka5 c6 b5 Rd8 b6 Ng4 Na3 Kd2 Nc7 Bb4+ Ka6 Rb8 Rg1 h1B Nd6 h2 b7 Bg2 Nh3 h1N Bf6 Rc8 b8B Rd8 Ba7 Rc8 Rc1 a1N Rc3 Nb3 Re3 Ra8 Bb2 Qd4 Ba1 Qd5 Bh8 f6 Nc3 Bh5 Bc4 Ra1 Ne2 Re7 Re1 Ra2 Ra1 Rae8 Kb7 Rc2 Ndb5 Qe5 Bb6 Rc8 Nb1+ Ke1 Ra8 Qd6 N1a3 Rd2 Ba7 Qd7 Nd6 Rce8 Ba6 Rd5 Kb6 Rg5 Bc8 Re5 Ka6 Kd2
B1rQ4/2ppb2p/2B1kn1P/R2R2RR/nNP2RR1/5n1b/n2r4/1K2qr1b w - - 1 2 legal: proof: d4 e5 a4 exd4 e4 b5 axb5 f6 e5 Nc6 e6 Nb8 f4 Bb7 Nd2 Bc8 Nc4 g5 Ne5 fxe5 f5 Qf6 Bd2 Qd8 Bf4 gxf4 Kd2 Ke7 Kc1 a5 c4 f3 h4 d3 b4 a4 g4 f2 g5 a3 b6 a2 b7 e4 h5 e3 b5 e2 f6+ Kd6 g6 e1R b6 Qe7 g7 Re2 h6 Re4 f7 Rd4 Nh3 Nf6 g8R Ke5 Qa4 Ra7 Bg2 f1B Nf2 Ne4 Rh5+ Kf6 Rg4 Nc6 b8R Ne5 b7 d2+ Kc2 d1N Nd3 Qb4 e7 Nb2 e8B Qe1 Nb4 Be7 f8R+ Ke6 Bg6 Nf6 B6e4 Nf3 Bc6 Rf4 Rd1 a1N+ Kb1 Nb3 Ra8 Nc1 b8R Bb7 Rdd5 Rd4 Rfg8 Rd2 R8g5 Rc8 Qb3 Ra3 Raa5 Na4 Bh1 Bh3 Bg2 Rg8 Rf8 Raa2 Rf7 Rc8 Qb2 Rd1 Qf2 Rad2 Qh4 Ng8 Rff4 Nf6 Bf1 Qe5 Bg2 Rf1 Qf2 Qe1 Qc5 Bd8 Qf8 Be7 Qd8 Kf7 Rde5 Nh4 Bce4 Bc6 Reb5 Ke6 Rbf5 Bb5 Ba8 Bc6 Bf3 Bb7 Bd1 Bbg2 Bdf3 Bh1 Bfc6 Nf3 Rfd5 Na2#
n2q1R1B/np5P/2N1pRqr/Nk2P3/N1p2Nq1/1b1rN3/nNq2bK1/3Q4 w - - 0 1 illegal: No possible last move, all moves rejected
1BQ2N1b/2K1R1pB/2B1B3/p1q1B3/2pn4/2k2nPb/R1P1q3/rrqq1b1B w - - 0 2 illegal: Other
q1N1N2R/1p2r3/1B2b1P1/1Bqrk3/nR1bBb1n/1P2pp2/1K2b3/2nRR1R1 w - - 0 1 illegal: No proof kernel
N2N2K1/4qr2/2R1B3/Rp4Nk/5pbp/1N1RbP2/1PbnbnqB/3q1q1N w - - 0 1 legal: proof: h4 e5 a4 b5 d4 exd4 h5 d3 h6 c5 a5 gxh6 Rh4 h5 Rh1 h4 Qd2 a6 Qh6 Ra7 Qb6 Rb7 Qd6 Rb6 axb6 a5 Qd4 cxd4 Kd2 f5 g4 Kf7 c4 Kg6 e4 h5 e5 d5 b7 h3 g5 h2 c5 h4 c6 a4 e6 a3 c7 a2 e7 Nd7 b8N Bh6 e8N Bg7 f3 Ne5 Nc6 Ng4 Ne2 Ne7 Bh3 Rh7 Ng3 Nf2 Rd1 Bh6 Nh1 Rf7 Nd6 Qd7 Ne4 Ng8 Nd8 Qe7 Bg4 Bd7 c8N Nf6 Nb6 Bc8 Bh3 Kh5 Na8 Bd7 Nbc3 Be6 Nc5 Bc8 Nb3 N6e4+ Ke1 d2+ Ke2 d3+ Ke3 d4+ Kf4 Be6 Ke5 Bd7+ Kd5 Bc8 g6 Be3 g7 f4 g8R Bf5 Rg6 Bg4 Re1 d1B Rc6 Be2 Rd1 Nd2 Ne4 Nb1 Ng5 d2 Re1 d3 Rd1 Bd7 Be6 Bc8 Rf1 d1B Bd2 Bc2 Rd1 Bd7 Be1 d2 Ke5 Nh3 Bg3 Nf2 Rc1 d1Q Rd6 Bg6 Rd3 Nd2 Rc6 Bc8 Rb1 a1Q Kd5 Qa2 Ra1 Qab1 Ra5 Qf1 Rdc3 Bc2 Rd3 Qe8 Kd6 Qbd1 Ke5 Ra7 Kf6 Qf8+ Ngf7 Qe7+ Kg7 Rb7 Kg8 Bd7 Bh3 Bg4 Ng5 Qe6+ Kh8 Rf7 Kg8 Bf5 Bg4+ Kh6 Bh3 Qf6 Bg4 Bd7 Bf5 Kh5 Bh3 Qe7 Bf5 Ng4 Nf2 h1Q Bh2 Qhg2 Nh1 Nf2 Bh3 Be6 Bf5 Bd5 Bd7 Be6 Bc8 Bh3 Be6 Bg4
8/7B/NRnbprqk/Np2P3/1Bq2nr1/q2rppPN/4N1b1/1K2RNB1 w - - 0 1 illegal: No proof kernel
3b1nNr/p3R2q/PPQ5/1nK1p1R1/1p1B1kp1/1Rr5/3q1rR1/NbqRR3 w - - 0 1 illegal: No possible last move, all moves rejected
Nb2Q1r1/RKnR1bp1/nR4q1/1B1p2P1/3n4/n1k1BR1R/1nPRp1p1/3r4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nd2 Nf6 Ndf3 Ng8 g5 h6 Ne5 h5 Ng4 hxg4 Ke2 Kf7 b4 Ke6 h4 Ke5 f3 a5 h5 d5 b6 g3 b7 g2 b5 d3+ Ke3 d2 b6 a4 h6 a3 h7 a2 Bd3 Nf6 Bb5 Qe8 Nh3 Na6 b8R Rg8 h8R Qg6 b7 Be6 Qe2 Ne8 Nf4 Bf7 R8h3 Nec7 Rd8 e6 b8R Bd6 Rb6 d1N+ Kd2 Kd4 Rd7 Ne3 Rd1 e5 Qe1 Kc5 Kc3 Nc4 Rd2 e3 Kb3 e2 Ka4 Na3 Ka5 e4 Ba4 Kc4 Ne6 e3 f4 Be8 f5 Bf7 f6 Kc3 Bb5 Be8 f7 Bg3 f8R Bf7 Qd1 e1N Qh5 e2 Qh8 Nd3 Qh5 Ne8 Nc7 Nb2 Qh8 Rb8 Na8 Nec7 Qh5 Re8 Qh8 Re3 Qh5 Rd3 Qh8 Be6 Rf3 Bf7 Qh5 Qe4 Qg6 Be5 Qe6 Qg6 Qe8 Bd6 Rd1 Be5 Be3 Rd4 Rd2 Bd6 Rb1 a1N Rb7 Nb3+ Kb6 Rd3 Ra7 Nd4 Kb7 Nce6 Rbf1 Bb8 Rf6 Nec7 Rb6 Nbc4 Rf4 Nb2 Bf2 Rf3 Be3 Rf1 Rff3 Rd1
2qB2K1/8/3p1Rrk/N2np1n1/nNP1B1b1/1N1pP3/2p1N1nN/r1b1NQ1r w - - 0 1 illegal: No possible last move
r2N4/1bNR1pBr/NnRNP1k1/8/3p2q1/1p2b2N/bp1R1PK1/r2n1B1r w - - 0 1 legal: proof: d4 a5 c4 e5 h4 d5 b4 axb4 cxd5 g5 d6 gxh4 d5 Ra3 Qd3 Ra8 Qd4 exd4 e4 b5 g4 h5 a4 c5 a5 h3 g5 c4 e5 h2 e6 h4 d7+ Ke7 a6 b3 a7 h3 g6 Kf6 g7 b4 d6 b2 Nd2 c3 Ra2 Nh6 g8R Bb7 Nc4 Ng4 Bh6 Ne3 Bg7+ Kg6 Ra6 c2 Rc6 Qh4 d8N b3 d7 Rh7 Nd6 c1R+ Ke2 Re1+ Kf3 Ra1 Rh8 Be7 Re8 Bg5 Re7 Ba6 N8b7 Bd3 d8N Bb1 Rec7 Nd7 Nc5 Ba2 Na6 Nb6 Rb7 Nd1 Rd7 Rb8 a8N Be3 N8c7 Ra8 Ne2 Qg5 Rg1 h1R Rg3 h2 Kg2 Kh5 Ng1 Qg4 Nh3 Kg6 Be2 Re1 Bf1 h1B+ Kh2 Bc1 Rd3 Be3 Rd2 Bg2 Rc1 Bb7 Rc6 Qh5 Kg2 Qh4 Bb5 Rh1 Bf1 Qg4+
1N1Kr2n/p1N1r3/1RBp3q/1RqRqkBp/8/RbP4P/3p1n2/1RbqB3 w - - 0 1 illegal: No possible last move, all moves rejected
7N/pp1q1R1b/3rbBp1/NP1q1kP1/5rN1/K1N1R1b1/Bb1R1p2/N3q1n1 w - - 0 1 illegal: No possible last move, all moves rejected
BB6/qnK1pp1p/2N2B1q/2n2r1N/1prRB1qP/BP5q/k1n5/2B1Q2b w - - 0 1 illegal: No proof kernel
BR1bn1b1/3B1Nnp/r5k1/p1B2n2/r4ppP/N1b1Q3/P2BK2B/B1r4r w - - 0 1 legal: proof: c4 d5 f4 e5 b4 exf4 c5 d4 Na3 b6 Rb1 bxc5 Rb3 c4 Rb2 Qd6 Rb1 Qd8 g4 f5 Qa4+ Qd7 Qd1 f3 Rb3 f4 Rc3 Qf5 gxf5 dxc3 h4 Kf7 d4 g5 e4 a5 b5 c5 b6 f2+ Ke2 c2 b7 c3 e5 c4 d5 g4 f6 Ne7 d6 Nd7 b8B Ra6 e6+ Kg6 f7 Nf6 d7 Nf5 d8B Ng7 e7 Be6 e8B Be7 Bb6 Bd8 Bg2 f1N Bd7 Nfe8 f8B Ne3 Qd3+ Nef5 Nf3 Bg8 Bd2 c1R Ng5 c2 Bfc5 c3 Qe3 Rf1 B8a7 c1R Ba8 c2 Nf7 Rfd1 Rh2 Rh1 Rh3 Rcd1 Bc7 c1B Be5 Bb2 Bed4 Bc3 Rg3 Bb4 Ba1 Rc1 Rg1 Rc4 Rb1 Bc3 Rb8 Ra4 Qf3 Rc4 Bg1 Rd4 Qe3 Ra4 Bc5 Bdf6 Rb5 Bce5 Nc2 Ned6 Ng5 Be6 Bh2 Rc8 Ba3 Nde8 Rb8 Bg8 Nf7 Bd8 Bab4 Bef6 Na3 Rcc1 Bc5 Bc3
RRNK4/1r1b3R/p1n5/P2np2R/qB5P/pRpB2k1/r6p/Q1bn1Rr1 w - - 0 1 illegal: No proof kernel
2q3rr/4N1p1/1q2b3/p1r2R2/Bpp2nPK/2PBbk2/1N2RNpn/2BBB3 w - - 1 2 illegal: No possible last move, all moves rejected
1b2bn1n/1rp4k/2p1KBpB/1qN3pp/7P/2Qr2P1/N1B3Br/RB3B1q w - - 1 2 legal: proof: c4 e5 d4 a5 dxe5 Ne7 b4 axb4 c5 Ng8 c6 bxc6 a4 f6 Ra3 Ra6 Rg3 Ra8 Rg5 fxg5 Kd2 Kf7 Kd3 Kg6 Kd4 h5 h4 d5 e4 b3 f4 b2 a5 Bg4 a6 Bf3 f5+ Kh7 a7 Be2 e6 Na6 Ke5 d4 g3 d3 e7 d2 e8B Bc4 f6 Nb4 f7 Kh6 Qb3 d1Q Bg2 Qc8 Nc3 b1R Nf3 Ne7 Bb2 Kg6 Na2 Bd3 Nd4 Qa6 Ke6 Nbd5 e5 Nb6 Qc3 Qb5 Nb3 Nd7 Nc5 Kh7 Rf1 Rb8 a8B Ng6 Bb7 Bc2 Ba1 Rb2 Ba6 Rb7 Rh1 Bd6 f8B Rg8 Re1 Nh8 Bf7 Bg6 Be8 Qb4 Baf1 Qb5 Bf7 Rc2 Bb2 Qf3 Ra1 Qe4 Be7 Rd8 Bf6 Qd4 Ba3 Qg1 Bb4 Qh1 Bg8+ Kh6 Bh7 Be8 Bhe4 Rd2 Bb1 Be7 Kf5 Rc2 e6 Kh7 Ba3 Bd6 e7 Bf4 Ke6 Be3 Na6 Ba7 Nc5 Bb8 Bb2 Bg6 e8B Rf2 Bd5 Rh2 Bdg2 Ne5 Bf7 Rd3 Bc2 Nd7 Bg8+ Kh6 Bh7 Be8 Bf5 g6 Bg7+ Kh7 Bh6 Rd2 Bb1 Rd5 Bfc2 Rd1 Qe1 Rd2 Bf6 Rd3 Qc3 Nf8+
1N1kqK2/BRRr1P2/2r3r1/7P/2q1q3/2N3N1/1B1Bbr1N/1qnb1Rn1 w - - 0 1 legal: proof: c4 a5 e4 f5 a4 fxe4 b4 d5 cxd5 b5 axb5 Nh6 b6 Ng8 b5 Bh3 Qe2 Bg4 Qd1 Bc8 f4 h5 Qa4 e6 Qb4 axb4 Be2 Ne7 Bg4 Ng8 f5 Bd6 g3 Bf4 gxf4 hxg4 Kf2 g5 Kg3 c5 h4 e5 d4 c4 b7 e3 b6 b3 h5 e4 f6 c3 f5 e2 d6 e1R d5 b2 Rh2 c2 Re2 e3 Ra5 Nc6 b8B Rf1 b7 Nh6 Nh3 Ne5 Ra7 Nd3 Nf2 Rh7 Nc3 b1B Bb2 c1Q Rc2 e2 Nfe4 Rf2 f7+ Kd7 f8R e1Q f6 Qe8 Rf7+ Kd8 d7 Rg7 Ra1 Ra6 Ba7 Rc6 b8N Ba6 Re7 Rg6 f7 Ba2 Rb1 Bb3 Ra1 Qe2 Rb1 Qh1 Rf1 Rgd6 Rcc1 Bd1 Rb1 Qc2 Rc1 Qb3 Rc2 Qc4 Rc1 Kc7 d8N+ Rd7 d6+ Kc8 Rc2 Nc1 Ne6 Bb5 Nd4 Kd8 Nc5 Qe4 Nf3 Qa4 Nh2 Bbe2 Nb3 Qac4 Nd4 Ng8 Nf5 Nf6 Nh4 Nd5 Nf5 Rdc7 d7 Nf4 Re5 Rb7 Rb5 Nh3 Rb4 Ng1 Rb6 Kc7 d8B+ Kc8 Bf6 Rd7 Bd4 Kc7 Be3 Kd8 Bd2 Rf3+ Kg2 g3 Rb7 g4 Nb5 Qce6 Rc5 Q6c4 Nc3 Re6 Rcc7 Rf6 Nb1 Rc6 Nc3 Nh3 Bh6 Nb3 Rg1 Rf1+ Nf3 Rf2+ Kh1 g2+ Kh2 Rf6 Kg3 Rc6 Re1 g1Q+ Kh4 Bc2 Nh2 g3+ Bf4 g2 Rc1 Bg4 Bd2 Qgf1 Rb1 g1R Rc1 Qfd3 Rd1 Rg3 Rf1 Ng1 Kg5 Nc1 Nf3 Bd1 Nh2 Rc5 Kh6 Bge2 Kh7 Rg6 Ng3 Rgf6+ Kg7 Qb1 Ng4 Rcc6 Nh2 Q8e5 Kg8 Rg6+ Kf8 Qe8#
r1qN2q1/N1BBk1b1/3N4/K3B1Rq/2PnP1qR/N1pb4/5rnR/3n4 w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 g4 exf4 Qb3 h5 gxh5 d4 Qc3 c5 bxc5 dxc3 a4 a6 axb5 axb5 c6 b4 d4 f5 h4 g5 d5 f3 c7 g4 h6 g3 d6 f2+ Kd1 g2 Kc2 f4 Kb3 f3 h7 Nc6 d7+ Ke7 h5 Nh6 Rh4 Ng4 h6 Bg7 Bf4 Ne3 Nh3 g1Q Na3 Qg4 Ng5 Nd1 Bh3 f1Q Ne4 f2 Nd6 Qg8 d8N Qh1 e4 f1N Ra2 Nfe3 Rh2 Ng2 Rh5 Bf5 Rg5 Bg6 Bg3 Bh5 Be5 Qc8 Bd7 Be2 Bg3 Bd3 Bf4 Na5+ Ka4 b3 Be5 Nc6+ Kb5 Na7+ Ka5 b2 Bf4 b1Q Rh4 Qe8 Bh2 Rg8 h8B Rf8 h7 Rf2 Bf4 Qg8 Rh2 Bh6 Bhe5 Bg7 h8R Qa2 R8h5 Qe2 R5h4 Qh5 Bg3 Qe1 Bgf4 Qee2 Bg3 Qeg4 Bgf4 Rb8 Bg3 Nb5 Bgf4 Nd4 Bg3 Qb7 c8N+ Kf8 Na7 Ra8 Bgf4 Qc8 Be3 Ne6 Bb6 Ke7 Bc7 Nd4
rqnk4/2p2B2/r4pn1/qNK4P/5n2/1P4q1/B1nNpRRN/1RR3B1 w - - 0 1 legal: proof: c4 a5 g4 d5 b3 dxc4 Qc2 h5 Qb2 hxg4 a4 b5 axb5 a4 Qe5 a3 Qd4 Nf6 Qb2 Ng8 d4 axb2 d5 e6 e3 Bc5 Nd2 Bb6 Nb1 Bd4 exd4 e5 f3 e4 Be2 e3 Bd3 Bf5 Bf1 Be4 fxe4 Rh4 Ra6 Rh3 Ra1 Rh8 Ke2 g5 h4 f6 e5 c3 Kd3 c2 Kc4 g3 h5 g4 e6 g2 e7 g3 d6 Rh6 d7+ Kf7 e8B+ Ke7 b6 Ra4+ Kc5 Rh8 b7 Ra7 d5 Ra4 Nf3 g1N Bf7 g2 Bd3 Ne2 Nh2 Nc6 b8R Qe8 d8N g1Q Nb7 Ra6 Nd6 Ne5 Nb5 Nf4 d6+ Kd7 Bd2 c1Q+ Bc3 Qce1 Bd4 Qg6 Rf1 e2 Bg1 Qd8 Rf2 Ne7 Ra8 Qc8 Bc2 Qb7 Rg8 Qa5 Rg7 Qd3 Rgg2 Qg3 Be4 Rha8 Bd3 Kd8 d7 Nc8 Bdg6 Ke7 d8R Qb8 Rd1 Nb6 Bh7 Nc8 Rc1 Kd8 Nd2 b1N Bhg6 Na3 Bb1 Neg6 Ba2 Nc2 Rab1 Kd7 Ng4 Ke7 Nh2 Kd8
KN1q4/1n1R2nr/3qNrb1/5BNB/k1P2Pr1/b1R2N2/rbr2B2/2R4q w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e3 g5 Qe2 gxf4 g5 f3 Qg2 f4 Qg4 hxg4 exf4 Bg7 Ra6 Bh6 Ra1 Bf8 Kd2 e5 Kd3 a5 Kc4 d5+ Kb3 Kd7 Ka4 d3 b4 d4 h4 e4 g6 g3 g7 d2 h5 d1R h6 f2 c3 d3 b6 Kc6 b7 e3 h7 g2 Nh3 g1R Bd2 e2 Be3 e1Q Ng5 d2 Ne6 Na6 b8R Nf6 g8B Nh5 Be2 f1R Rh3 Rf2 Rb7 Ng7 Bh5 Rg4 Rd7 Qh1 Bd4 Re2 Bf2 Rc1 Re3 Rc2 b5+ Kb6 c4 d1Q Nd2 Ba3 Nf3 Qd6 Re1 Ra7 Bgf7 Rf8 Bfg6 Rf6 h8N Bb7 Rg1 Be4 Rc1 Ra2 Nf7 Rec2 Bh7 Bg6 N7g5 Rd2 Kb3 a4+ Kc3 Ka5 b6 Rdb2 b7 Nc5 b8N Nb7 Rd3 Bf7 Bf5 Bg6 Rd4 Rc2+ Kd3 Bb4 Ke4 a3 Rd3 Ka4 Rb3 Rab2 Rc3 a2 Rf7 a1B Rd7 Qc6+ Ke5 Ra2 Kd4 Qcc7 Kd5 Qe5+ Kc6 Ba3 Rc7 B1b2 Re7 Nd6 Rd7 Rc7+ Kb6 Nb7 Ka7 Qd6 Ka8 Ne8 Rf7 Re7 Rf8 Rh7 Rf7 Ng7 Rc7 Qh3 Rd7 Qh1
1n5B/4Rb1R/3qN3/r3Bq1q/1R4np/rn2P2P/bKNR4/rB2Nkr1 w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 c5 b4 cxb4 f5 Bc5 e4 Be3 f6 gxf6 dxe3 f5 Qd3 f4 Qd4 exd4 Kd2 Ke7 c4 Kd6 Kc2 Kc5 g4 a5 b6 h5 e5 f5 h3 d5 b7 b3+ Kb2 h4 e6 d3 e7 f3 e8R a4 g5 a3+ Kc3 f2 g6 d4+ Kd2 b2 g7 a2 Bg2 f1R Nf3 f4 Re7 Ra3 Ne1 f3 Rh2 f2 Bc6 Rg1 Be4 Nh6 g8R f1Q Rgg7 Be6 Rh7 Qd6 Bg6 Kb4 c5 Kc4 c6 Qf5 c7 Ng4 c8N Bf7 Na7 Re8 Kd1 d2 Nc6 Rc8 Nd8 Rc5 Ne6 Rca5 Nc3 b1B Bb2 Qh5 Nd5 Qf5 Ke2 d1R Nb4 Rc1 Kd2 d3 Bh8 Rcc3 Kd1 d2 Re2 R3a4 Rf2 Rca3 Rf4+ Be4 Rf2 Bd5 Rb1 a1N Nc2 Nb3 Re2 Nc6 b8B Ra1 Ba7 Nb8 Bad4 R4a3 Bde5 Qf4 Be4 Qf5 Ncd4 Kc3 Rh2 Kc4 Kc2 d1Q+ Kb2 Qdf3 Ndc2 Qh5 Bg6 Qff5 Nf3 Kd3 Rg2 Nf2 Nfe1+ Ke2 Rh2 Kf1 Rg2 Ng4 Rd2 Rh1 Ra7 Qfg5 Ncd4 Rg1 Re7 Be4 Kc3 Nc1+ Rb3 Bc6 Bb1 Qf5 Kb2 Bd5 Rb4 Ba2 Ndc2 Nb3
1n2K3/1nB5/1N1r1n1k/PR1nNp1B/1qN1RR1P/3Br2q/2bb4/1r3qN1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e6 b4 axb4 f5 Ra5 Nh3 Ra7 Ng1 Ra8 g4 h5 g5 f6 Qc2 fxg5 f6 g4 Qd3 h4 Qf5 h3 Bxh3 exf5 Bf1 Rh5 Kd1 Rh3 Ke1 Rh8 Kf2 Kf7 Ke3 Kg6 Kd4 c5+ Ke5 b5 h4 g3 d4 g2 e4 b3 a4 b2 d6 b4 d7 b3 Ke6 c4 e5 c3 f7 c2 a5 Nf6 d5 Qb6+ d6 Ba6 d8N Bd3 Nf3 g1Q Ra3 Qb4 d7 Qg2 Ra4 Rh6 Ng1 Qh3 Bf4 c1N Na3 b1N Nc6 b2 d8R Nc3 Rd5 b1R Rb5 Nb3 Nc4 Bc2 Bd3 Ncd5 Rh2 Bc5 Re2 Be3 f8N+ Kh5 Kf7 g5 e6 g4 e7 g3 e8B g2 Rf2 Nc5 N6e5 Nb7 Nfd7 Bd2 Ndb6 Rg6 Bh2 Kh6 Rf4 Ra6 Re4 Rg3 Rf4 Ne7 Kf8 Re3 Bh5 Ned5+ Nd6 Qc5 Rae4 Qb4 Kf7 Nfd7 Ndc4 N7f6 Ngf3 g1Q Bg3 Nh7 Ke8 Qgf1 Ng1 Nhf6+ Kf7 Rd1 Na8 Qc5 Nd7 Qd6 Rf3 Rc6 Nab6 Qc5 Bc7 Qb4 Nde5 Re6 Rff4 Rd6 Kf8 Rb1 Kf7 Ng8 Ke8 Ngf6+
1q1Br2q/b3R1RB/k3NN1P/q2K1n2/1npB4/2rRr3/2R3Pb/bN1b4 w - - 0 1 illegal: No possible last move
7B/2Kb2nb/2Nb2bP/N3q2R/BBRq1NRb/2P3b1/k1rpB3/5nq1 w - - 0 1 illegal: No possible last move, all moves rejected
1q3Nq1/2R2BN1/1qR4n/Knqp2b1/3r4/k1B1PPB1/1Rq3R1/2Nb2nn w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 b5 axb5 e5 e3 exf4 Qh5 f3 Kd1 f2 Bd3 f1N Qf3 f5 Ke1 f4 Qg4 Nc6 Qd1 Nb8 Bf5 h5 Ra2 a5 Bd3 f3 Ra1 Ra6 Qe2 f2+ Kd1 Rf6 Qg4 Rf3 gxf3 hxg4 b4 Ke7 c4 Kd6 Kc2 g5 Kb3 g3 Ka4 g2 h4 g4 b6 g3 b5 Kc5 b7 d5 b6 Bh6 h5 Nc6 b8N Na7 b7 Bf5 Bb2 Nb5 Nd2 Bg5 Ra2 Nh6 Nh3 g1Q Bc3 g2 Nf4 Ng3 Rh2 f1Q Rb2 Nh1 Bc2 Bh7 Bg6 d3 Bf7 Qb1 Nb3+ Kb6 Ra2 d2 Rb2 d1Q Ne6 Qdc2 Nd7+ Kc6 c5 Qb8 Ng7 Qgc1 Bg6 g1N Rg2 Re8 Bf7 Re4+ Bb4 Qg8 b8B Rd4 Nf8 Bd3 Be5 Be2 Bf4 Bd1 Bg3 Kb7 c6+ Ka6 c7 Qc5 c8R Qbh7 Rc7 Q1c2 Ng6 Qb8 Rd7 Qhg8 Re7 Qca7 Nf8 Qab7 Rc7 Qc5 Rgc2 Kb6 Nc1 Ka6 Kb3 Kb6 Bc3 a4+ Ka2 a3 Kb3 a2 Rc6+ Ka7 Rc7 a1Q Rc6 Ng4 h6 Qb1 h7 Nh6 Rc7 Ka6 h8R Kb6 Rh7 Qd6 Rc4 Qc5 Ka4 Kc6 Ka5 Qa2+ Ra4 Qb3 Rg2 Qc2 Rab4 Qce7 Ne8 Kc5 Rg7 Qed6 Rg6 Qdc6 Ng7 Qcc8 R4b3 Kc4 Rb6 Qc5 Rc6 Qb6+ Ka4 Na3 Rc7 Q6b7 Ne2 Qcc6+ Ka5 Kc5 Rb6 Nb5 Bh4 Kc4 Bg3 Qc5 Ra2 Kb3 Rb2+ Ka3 Nc1 Rh4 Rg6 Rd4 Rgc6 Qbb6+
BrR2n2/q2N1P2/1nNbb1B1/1k4b1/2R1P2R/pNB5/R1p1brn1/Kr6 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 f5 d4 e5 Qd3 exd4 Qh3 f4 Qe3 fxe3 Kd1 Kd7 Kc2 c5 f4 h5 b4 a5 Kb2 d3 g4 d2 g5 d1N+ Ka2 a4 g6 c4 b6 a3 d6 Kc6 g7 h3 f5 h4 f6 e2 b7 e1B f7 h2 d7 h3 Bb2 c3 Ne2 c2 Bf6 Kb5 Bc3 Ne7 g8B Qa5 d8R Bd2 Rd4 Nd5 Rc4 Be6 Bh7 Nd7 b8R+ N5b6 Bg6 Bd6 Rc8 Bg5 Nd2 Rb8 Nb3 Qa7 Ned4+ Ka4 Nc1 Nf8 Nc6 Kb5 Nb3 Ne3 Be2 Ng2 Bg4 Bd7 Be6 Rh7 Bd5 Be6 Rad1 Rh4 Ka1 Rf4 Rb1 Rf6 Rb2 Rf3 Ra2 Rf2 Rd1 h1B Rd3 h2 Rh3 Qa4 Rh4 Qa6 Nd8 Qa7 Ba8 Ne1 Nc6 Bf3 Rh7 h1R Rh2 Be2 Rh4 Ka4 b5+ Bb4 Ne5 Rh3 Nd7 Ng2 R4c7 Bd6 Rc5 Nc4 b6 Rg3 b7 Nb6 R5c7 Rd3 Rc5 Rd4 R5c7 Rb4 Rc4 Kb5 R8c6 Re8 b8N Rd8 Rc7 Re8 Nc6 Rb8 Nbc5 Rb3 Rc8 Rb2 Nb3 Rb1#
7B/2P1kb1B/1N1r1n1n/3qP1nn/q3B1p1/2pR1r2/1bN1R1KR/1N3Nr1 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 axb5 e5 c4 exf4 g4 hxg4 Qa4 d5 bxc5 Qa5 c6 Qc7 c5 Qd8 Qc4 dxc4 Kf2 g5 d4 f5 e4 a5 h4 g3+ Kg2 a4 b6 g4 h5 a3 d5 a2 h6 Kf7 b7 Qd6 h7 Nd7 b8N Ndf6 c7 Be6 c8B Ke7 c6 Nh6 c7 Bg7 Rh2 Ra6 Bd3 Bf7 Bb7 Rb6 Bb2 f3+ Kf1 f2 Ne2 f4 Kg2 f1N Nd7 Rf8 h8R Qe5 Rg8 Rd6 Nb6 Nd2 Ba8 Nf3 Bd4 Ng5 Bc2 Rb8 Rd8 Qf5 Bc6 Ra8 Bb7 Ra3 Ba8 Rf3 Bc6 Rd7 d6+ Ke6 Bb5 Nd5 Kg1 g2 Na3 Rc3 Re1 a1Q Ng3 f3 Nb1 Qa4 Re2 Rb3 Kf2 g1R Bc6 Rh1 Bc3 Bf8 Bh8 Bg7 Ba8 Bb2 e5 Nf6 Bc6 Qd3 Bb7 Qd2 Bh7 Re3 Bbe4 c3 Ra8 Rd8 d7 Ke7 Ra5 Qdd4 Rd5 Qc5 Rd3 Qca5 Nh5 Qd5 Kg3 f2+ Kg2 f1N Ng3 Rc8 d8N Rf3 Ne6 Rd8 Nd4 Rd6 Nh5 Ng3 Nc2 Ngf5 Ng3 Ng7 Nf1 Ngh5 Bhg6 Nd7 Bgf5 Ndf6 Bh7 Rg1+
1B2n1b1/R6B/1n2PR1p/P1qBn1NK/3N3r/r5NN/1kp2Rr1/1r3qr1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 g6 g5 Bd6 Qc2 f3 Qf5 gxf5 g6 f4 Kf2 Be7 Ke1 Bg5 hxg5 Qd7 Kd1 Qe7 Ke1 Qd8 Kf2 Kd7 e4 Kd6 d4 b5 a4 c5 g7 f5 g6 b3 Bb2 b4 Rh4 c4 Rg4 c3 Bg2 c2 Bc3 b2 Na3 b1R Nh3 Nf6 g8N b3 g7 b2 Ne7 Ne8 g8B Be6 Rg6 Nd7 Rf6 Rg1 a5 Nb6 Rf1 b1R Bd2 Qc7 e5+ Kd7 d6 Qc5 Bc3 Rb3 Nb5 Ra3 Bh1 Rc8 Bd2 h6 Bh7 Rhg8 Bc3 R8g3 Bd2 Bg8 Be3 Rg4 d5 Rh4 Nd4 Rd8 Nec6 Rb8 Ne2 Rg7 Ncd4 Rg2+ Ke1 Rb7 Ng3 f2+ Ke2 Rb8 Kf3 Rb7 Rd1 f1N Rd2 Rb8 Rf2 Nd2+ Ke2 Ndc4 Kf3 Kc8 e6 Kb7 d7 Ka6 d8N Ne5+ Ke2 Rb7 d6 Rb8 d7 f3+ Kd2 f4 Nf7 Rb7 d8R Rb8 Nfg5 Rb7 Nc6 Kb5 Rd7 Kc4 Nd4 Rb8 Ke1 Kc3 Ra7 Kb2 Bd2 Rb7 Bb4 Qc8 Be7 Qc5 Bd6 Rg7 Bb8 Rb7 Re2 f2+ Kd2 f1R Rf2 Rb1 Ke2 Rgg1 Bd5 Rg7 Bb3 f3+ Ke3 Rh5 Kf4 Rg2 Bd5 Rgg1 Rh2 f2 Rg2 f1Q+ Rf2 Nd3+ Kg4 Rg2 Ng1 Rhh2 Nh3 Ne5+ Kh5 Rg1 Ngf3 Rg4 Ng5 Rhg2 R2f3 Re4 Rf2 Rh4+
RB5n/1r2p1P1/1bqB4/K1P2n1R/3qq3/1Np1NB1R/B6r/qq3Nkr w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 c5 h4 gxh4 d3 b5 Bh6 Ba6 Rh2 bxc4 Qd2 c3 Rh1 Bc4 b5 c2 Qb4 axb4 Bc1 Be6 Be3 c4 Bf4 c3 Bc1 Bc4 dxc4 Ra4 Bf4 Ra5 Bc1 Ra8 g4 Kf7 a4 Kf6 f4 d5 g5+ Kg7 g6 Kh6 f6 Kh5 b6 Kg4 b7 Kg3 f7 h5 f5 d4 a5 d3 f6 d2+ Ke2 d1R a6 h3 a7 b3 Na3 h2 Nf3 b2 Nd2 Nd7 Kd3 Kf2 b8B Bg7 f8R b1Q f7 Bd4 g7 h4 Bh3 Re1 Be6 h3 Nf1 Nh6 Bcf4 c1Q+ Nc2 Nf5 Ra5 Rh6 Rh8 Nf8 Bfd6 Ng6 f8N Be3 Rg8 Nh8 Nd7 Qcb2 Re8 Q2a1 Nc5 Qd7 Nb3 Rc1 Rg1 h1Q Rg3 h2 Rh3 Qhc6 Re5 Bb6 c5 h1Q Kc4 Kg1 Kb4 Qhe4+ Bc4 Rh7 Nce3 Rc2 Rd5 Rh2 Rc8 Nh4 Rh5 Nf5 Bbc7 Rb8 a8B Rb7 Bb8 Qab2 Rd8 Ba7+ Ka5 Rh1 Nbd2 Q2a1+ Ba2 Qde6 Nb3 Qd4 Rf8 Qee4 Bbc7 Rb6 Bb7 Rh2 Ra8 Rb4 Bb8 Rh6 Ba6 Rb7 Be2 Qc8 Rf3 Rh1 Rh4 Qcc6 Rh2 Rg6 Rh5 Rg2 Rfh3 Rgh2 Bf3 Bb6+
4B2N/K7/2p1R1nB/3Rnq2/Rq3BPn/1rP1q1r1/4p1N1/nR2rkNn w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 Ne2 axb4 Bb2 e5 Bc1 e3 Ng1 e4 Nh3 Be7 Ng1 Bd6 g4 g5 Qf3 Be5 fxe5 Qd3 Qf4 gxf4 h3 Qd5 g5 Bg4 hxg4 Qd8 Ke2 Kd7 a4 Kc6 d4 Kd5 g6 Kc4 e6 b5 g7 h5 a5 f5 a6 c6 d5 b3 e7 b2 e8R f3+ Kd1+ e2+ Kd2 f2 Ke3 h4 a7 b4 c3 f4+ Kd2 e3+ Kc2 h3 d6 h2 d7 f3 Bg2 e1R Re7 f1N Ne2 f2 Nf4 Rh3 Ra6 Rg3 Be4 Qb6 d8B Nd7 Ra4 Rb8 a8R Ne5 Ng2 Nd2 R8a5 f1N Re6 Ndf3 Rd5 N1d2 Bg6 Ne7 g8N Nb3 Nh6 Nh4 Be8 N7g6 Bg5 e2 Bcf4 Qe3 Rg1 h1N Nf7 Rb7 Nh8 Rb5 Rd1 Rb6 Nd2+ Kd5 Nf1+ Ke4 Rd5 Kf3 Nh2+ Kf2 Nf3 Rb5 Bh6 Rb8 Rd1 Na1+ Kb1 Nb3 Ka2 Na1 Rd5 b3+ Ka3 b1Q Rb5 b2 Kb4 Nc2+ Ka5 Na1 Ka6 Qf5 Rd5 Rb6+ Ka7 b1Q Nh2 Qb4 Nf3 Rc1 Rgd1 Rb1 Ng1 Rc1 R1d4 Re1 Rd1 Kf1 Rb1 Qc4 Rd2 Rb3+ Rd4 Qc1 Rdd6 Qb4 Rd5 Qe3+
6n1/BKp1qNn1/1P6/p1BRRr2/4b1B1/2N2PRN/2qb2pr/2n1N1rk w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 f5 e4 fxe4 h3 Bg7 Qf3 Bf8 h4 gxh4 Qg3 hxg3 axb5 Qd6 Ne2 Qd7 Ng1 Qd8 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Kc5 Kf4 b4 a5 d4+ e3 b6 e5+ d6 h5 b5 h4 g5 e4 d5 g2 g6 h3 g7 h2 b7 Be6 b6 Ra7 Ba3 e2 Nf3 e1N Nc3 e3 Rd1 Na6+ Kc6 e2 b8B Nc5 d7 Ra8 d6 Ned3 Ne1 Nc1 Rd5 Bf5 Ba7 Ne6 Kb7 Be4 Bc5 Qe7 d8N Rh6 f3 Kg3 d7 Rh3 Rg1 h1Q Nf7 Kh2 Ng5 Rh5 Nh3 Rf5 d8N Rc8 Nc2 e1R Ba6 Rd1 Re1 Qg1 Nd4 Qf2 Nf7 Qc2 Bb5 Ra8 Bd7 Rd8 Re2 Kh1 Bc8 Rg1 Re3 Nf6 g8R Bh6 Rg3 Rh8 Re1 Ng8 Re2 Qa2 Nc2 Bd2 Ne1 Ng7 Bd7 Qc2 Bc8 Bd3 Ree5 Be4 Bd7 Rf4 Bg4 Rf5 Nhg5 Rh2 Nh3 Qd7 Nb1 Qd8 Nc3 Qe7
r3N1r1/k2B3n/BrP1p1qB/3PK2p/3N3R/3bpB2/NbR3p1/2Rn2r1 w - - 0 1 legal: proof: b4 b5 g4 c5 bxc5 g5 a4 d5 e4 dxe4 h4 gxh4 axb5 f6 g5 f5 Qg4 fxg4 Ke2 Kd7 Ke3 Kc7 Kf4 Kb7 c4 h5 d4 a5 g6 a4 b6 a3 g7 h3 c6+ Ka6 c5+ Ka5 b7 g3 c7 g2 c6 Kb6 Nf3 h2 Nc3 a2 Ba6 Nh6 g8B Bg7 Bd5 Be6 c8B Nd7 b8R+ Ka7 Rb2 Re8 Rc2 Nf8 Bd7 Bf5 Bd2 e6 Rac1 a1R Na2 Ng4 Be3 Nf6 Ke5 Rb1 Bh6 e3 Be4 Rb2 d5 Rb6 Nd4 N8h7 f4 Rg8 Bf3 Bd3 f5 Ne4+ f6 Qe7 Kf4 Qf8 f7 Qe8 f8N Nc3 Rf2 Nd1 Rfc2 Nf6 Nh7 Qg6 Ke5 Bh8 Ng5 Bg7 Ne4 Nh7+ Nf6 Bh8 Rg1 h1R Re1 Rh4 Rh1 Rf4 Rh4 Bg7 Bg4 Rf1 Be2 Rg1 Bf3 Bf8 Ne8 Ba3 Re4 Bb2 Rg4 Ng5 Rh4 Nh7
1N1nN3/Bnb3Bn/1p1RP2p/qb4q1/1PR2R2/r3q1kB/3qB1N1/2rr1K2 w - - 0 1 illegal: No possible last move, all moves rejected
N1NR4/3Nr2q/1ppRq1qk/BbbP2RN/1PKnr2q/5B1b/3Bn3/4r3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 Rh3 exf4 Qb3 a4 Rh1 axb3 g4 h5 d4 f5 Kd2 Kf7 Kd3 Kg7 a4 b2 e4 f3 e5 f4 a5 h3 e6 f2 a6 f3 a7 h2 d6 h4 e7 h3 e8R Qe7 g5 Bd7 g6 Nh6 d5 Nc6 Ra5 Nd4 Nc3 b1Q+ Kc4 Qe6 Bg2 f1R Nd1 f2 Rd8 Nhf5 Bd2 Ng3 Nb2 Ba4 d7 Bc5 Nd3 Re8 Ne2 Re1 Ra6 f1B Bf3 Re7 Rg1 h1Q Ne5 h2 Rd6 Bh3 Nf4 Kh6 g7 Nge2 Rg5 c6 Nh5 Rc8 a8N Qbg6 Rg8 Rf8 d8B Rf4 Nd7 Re4 Ba5 b6 Rd8 Qh7 Rb8 Qg2 Rd8 h1Q Rb8 Qhg6 Rd8 Qg3 g8N+ Kh7 Ngf6+ Kh6 Ne8 Qgh2 Nec7 Qf4 Nb5 Qff7 Na7 Qfh7 Nc8 Qh2 Rg8 Qf4 Rf8 Qh4 Rd8 Bb5#
1R5r/2pk4/2pnr2r/R2nB1bq/1BB3P1/1nPNrNN1/bqR3R1/3b2K1 w - - 0 1 legal: proof: h4 b5 f4 e5 a4 exf4 axb5 g5 c3 gxh4 Qa4 Bc5 Qa6 Bf8 Qc6 dxc6 Kf2 a5 e4 f5 g4 h5 d4 f3 b4 f4 d5 h3 e5 h4 b6 h2 e6 h3 b7 a4 e7 a3 d6 a2 b5 Nd7 b8B Ndf6 b6 Bh6 b7 Bg5 Bb5 Be6 Ba4 Nh6 Kf1 f2 Nd2 Nf5 Ndf3 Nd5 Ba3 Kd7 Ba7 Qb8 e8R Rh6 Rc1 a1N Rc2 Nb3 Ne2 Rf6 Rg1 h1R Rc8 h2 Bd4 Bf7 Bb4 Re6 Kg2 f1R Bb5 Re1 Ng3 R1e3 Be5 Bg8 Bc4 Bf7 Nd4 f3+ Kf1 f2 Nf3 Bg8 Kg2 f1B+ Kf2 Rh6 Rg2 Be2 Rf8 Bd1 Rf7+ Ke6 d7 Nd6 Rf5 Rhe1 d8N+ Kd7 Ne6 h1Q Nf4 Qh5 Nd3 Bf7 Bf6 Re6 Be5 Re3 Kf1 Qc8 b8R Qb7 Kg1 Qb5 Rb7 Rah8 Rb6 Qa4 Rb5 Qa1 Ra5 Bg8 Rf8 Qb2 Rb8 Bh7 Nf4 Nb7 Rcd2 Bb1 Rc2 Nd6 Nd3 Ba2
3BBK1n/1n4p1/p1n1R1N1/1bb2q1r/N3bP2/krbN3b/P1p2B1N/3R1R2 w - - 0 1 illegal: No possible last move
1bN1Nn2/8/1N1r1BnR/2r1p1r1/rkP1P1b1/3n1pp1/B1K1qbR1/1B3NR1 w - - 0 1 legal: proof: f4 b5 g4 g5 d4 c5 a4 cxd4 axb5 gxf4 g5 h5 Qd3 Ba6 Qf5 Bc8 Qg4 hxg4 Kd2 e5 b4 Ke7 e4 Kd6 h4 f5 b6 a5 c3 g3 h5 a4 b7 a3 g6 a2 h6 f3 h7 f4 g7 d3 b5 Kc5 b6 d5 Be2 d4 Kd1 d2 Na3 f2 Nb5 f1R+ Kc2 d1N Na7 Nd7 b8N Bd6 b7 Nf2 Bd3 Ne7 g8B Nf8 Nf3 Neg6 Nd2 f3 Rg1 Bg4 Nc8 Ra4 Rg2 Rh1 Bgc4 Rh5 Nf1 Rg5 Bf4 Rg8 h8R Qf6 Rb1 a1B Rh6 Qe6 Ba2 Qc4 Rd1 Kb5 Nd7 Bb8 Ndb6 Rg7 Be2 Rc7 Bd3 Rc5 Bd2 Ka5 Be3 Qb5 c4 Kb4 Rc1 Bc3 Rd1 Be1 Rc1 Nd1 Bf4 Bf2 Rb1+ Nb2 Re1 Bd6 b8N Qa6 N8d7 Bb8 Nf6 Qb7 Ne8 Qh7 Be2 d3+ Kb1 d2 Bd3 Qd7 Kc2 Qd4 Ra1 d1R Rc1 Qe3 Rb1 Rh5 Bg5 Qe1 Bf6 Rg5 Be2 Rd6 Bd3 Nh7 Nh2 Qe3 Rbg1 Nhf8 Nf1 Qe2+ Kb1 Ra3 Kc1 Ra4 Bdb1 Qe1+ Kc2 Nd3 Nh2 Qe3 Nf1 Qe2+
bR3B2/q1K1N3/2p1p1N1/b4n2/n2P1n1r/1NPpn2q/3R2Rr/B2BBk1r w - - 0 1 illegal: No possible last move
brbBR3/1Np1Bk2/BN1n1q2/4p2b/rRP4N/bb1R2P1/1p2b2n/5NK1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 f6 d5 Kf7 d6 Ke6 Qh5 Kd5 dxe7 Kc5 e6+ Kc6 Qe5 fxe5 e8N Kd5 a4 b5 f4 h5 Kf2 b3 c3 b2 e7 Ke6 g3 d5 a5 h3 f5+ Kf7 a6 b4 c4 b3 a7 h2 f6 h4 Kg2 d4 Bd3 h3+ Kf1 Na6 Bh7 d3 Bd2 Nh6 Nf3 Ng4 Ra4 Nc5 Rb4 Nb7 Bf5 Nd6 Bg5 d2 Nh4 d1B Nd2 b1B Rg1 Rb8 a8N h1B Nb6 b2 Be4 h2 Bb7 Bhe4 Ba6 h1B Rg2 Bg6 Kg1 Bb3 Nf1 Rg8 Rd2 Bh5 Rd1 Ba8 Rd3 Ke6 f7 Nh2 Bf6 B1c2 Bg5 Bcd1 Bf6 Bde2 Bg5 Nf5 Nd6 Rh8 Nb7 Nd6 e8R+ Qe7 Rd8 Qf6 Re8+ Be7 f8B Kf7 Be3 Nf5 Beh6 Bc5+ Be3 Nd6 Be7 Rg8 Rb5 Ba3 Rb4 Rg4 Bd2 Rd4 Bd8 Rd5 Bg5 Ra5 Be7 Ra4 Bd8 Qf3 Bge7 Qf6
2r4R/1p4pK/1P3N2/B1q1b1k1/B1bNnr1q/3pR3/1BP1B2p/Nn2Rqr1 w - - 0 1 illegal: No proof kernel
1nkN1bqB/p3n1p1/2N4n/K3rr1p/1nPpb3/1n4R1/B2P3R/2BN1R1N w - - 0 1 illegal: No proof kernel
2r1r2k/1Bq1nn2/2P2R2/qB4p1/R1p1Q2b/2B1Rn2/2NpPKB1/5R2 w - - 0 1 illegal: No possible last move
1rqN3b/1r1b4/n1bq3q/1B1B2Bk/1Kn4N/1RQ1b1P1/P2N1N2/2rbB3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 b4 axb4 Nf3 b3 Ng1 b2 Rh2 bxa1Q Rh6 Qe7 Rh1 Qd8 d4 c5 Kd2 h5 e4 f5 e5 Kf7 e6+ Kg6 e7 b5 e8N h4 g3 c4 d6 h3 d7 b4 d5 h2 d6 f3 Qe2 f2 Nh3 c3+ Kc2 b3+ Kd3 b2 Kc4 c2 Qd2 f4 Qd5 f3 Ng7 Nf6 Na3 b1B Rg1 h1Q Ne6 Ra7 Bd3+ Kh5 g6+ Qe5 g7 f1B g8B f2 Qd4 Nd5 Nc7 Rb7 Qe3 Bg7 Ne6 Be2 Nd4 f1R Nf5 Nb6+ Kb4 Bd1 Bd2 c1B Bb5 Be4 Qc3 Bc6 Nb1 Nc4 Be1 Be3 Bd5 Rg8 Rg2 Bh8 Nf2 Qf8 d8B Nd7 Bg5 Nc5 d7 Qed6 d8N B8d7 Rg1 Qfh6 Rg2 Qh3 Nd2 Rg1 Nh4 Rf1 Ne6 Rgb8 Nd8 Q3e6 Nh3 Qe8 Rf2 Rh1 Rf3 Rg1 Nf2 Qg8 Nf7 Qc8 Nd8 Bf4 Qc2 Be2 Rb3 Be3 Qc3 Bf3 Nd3 Be2 Bf2 Rc1 Be1 Bd1 Nf2 Na6+
rq1k4/N1b5/3qr1Bn/n2bN1K1/2R2Nnr/B1P3n1/1PQn1N2/5BbB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 hxg5 d3 c3 Ne7 e3 Ng8 Ra4 Ba3 Ra6 Bf8 Rah6 Ne7 R6h3 Bg7 Rf3 Ng8 Rf2 Bf8 Rc2 dxc2 Kf2 h5 Kf3 a5 g4 d5 g6 f5 g7 a4 e4 a3 b6 h4 b7 a2 e5 a1R g5 h3 g6 d4 e6 h2 e7 d3 Bg2 d2 Nh3 Nh6 g8B Nc6 b8N R1a6 g7 Na5 Nc6 Bb7 Bf1 Qb8 Qe1 d1Q+ Qe2 Qdd6 Be3 c1B Bc5 Be3 Na3 Bg1 Nc4 Kd7 e8N Be7 Qd3 Bd8 Ba3 Bc7 Bd5 Rh7 Na7 Kd8 Be4 Bd5 g8B Rb6 Ng7 Rc6 Ke2 f3+ Kd2 f4 Bg6 f2 Ne5 f3 Ke3 Rh8 Kf4 Ra6 Nh5 Rb6 Be2 f1N Kg5 f2 Qc2 Ne3 N5f4 f1N Nf2 Nd2 Bf1 Neg4 B8f7 Rb4 Be4 Re8 Bfg6 Re6 N2h3 Bgb6 Nf2 Rc4 Rg1 h1N Beg2 Ng3 Bh1 Ngf5 Rg3 Re4 Rd3 Ng3 Rd4 Bc5 Rc4 Be3 Nfd3 Bg1 Nf2 Re2 Nd1 Rh2 Nf2 Rh4
1N2qBq1/Pbq1NBn1/bPbQ3r/1n4Bb/1nK2rk1/1N6/5Rb1/1NB5 w - - 0 1 legal: proof: h4 b5 e4 g5 b4 gxh4 c3 a5 Qb3 axb4 Qa4 f5 Qd1 b3 exf5 b2 a4 d5 d3 b4 Be3 b3 Na3 Bg7 Rc1 Bd4 Rc2 Bc5 Rc1 Bb4 cxb4 Nf6 Rc5 Ng8 Rc4 dxc4 Ke2 Kf7 g4 Kf6 f4 b1B b5 c5 b6 h5 d4 e5 d5 h3 d6 h4 d7 c3 a5 h2 a6 c2 Kd3 c1N+ Kc4 b2 a7 h3 Qb3 e4 Be2 Nd3 Kc3 c4 Bf3 Na6 Nb5 Ne7 Kd4 c3 Qa3 c2 Nc3 c1Q Kc4 Rh6 Ne2 Ndb4 Rf1 h1B Nd4 h2 Rf2 Bg2 Nb3 h1B Bd1 Qf8 d8B Bb7 Be2 Qc2 Bc1 e3 Bd3 e2 g5+ Kf7 f6 Ke6 g6 e1Q f7 Nf5 g7 Qg8 f8B Nc7 Bh4 Nb5 Bg5 Bgc6 Be2 Bhg2 Bh5 Ba2 Bg6 b1B Be8 Qe5 Bh5 Qc7 Bg6 Qb2 Bh5 Bbe4 Nb1 Bef3 Be8 Qbe5 Bh5 Qh8 g8N Ng7 Bf7+ Kf5 Ne7+ Kg4 f5 Qg8 f6 Bd1 Nc8 Qe8 Ne7 Nc2 Qc5 Nb4 Qd6 Rd8 Qh2 Rd2 Qd6 Rd4+ Kc5 Qeb8 Bh5+ Kh3 f7 Bdf3 Na5 Be6 Nb3 Bc4 Bg6 Na3 Bh5 Nf5 Bg7 Qbe8 f8N Rf4 Nd7 Bca6 Bf8 Nb5 Nb8 Ng7 Bg6 Bh5 Bf7 Rf3 Kc4 Kg4 N1d2 Rf5 Nb1 Rf4+
1n1brr2/1k4r1/nnNR2P1/2Rb4/2N3q1/1Nn1N1Q1/1nRKP3/rRqB4 w - - 0 1 illegal: No possible last move
2rR1rNb/2n1R3/RB5K/1P6/1B1b1b1r/b2bq1b1/2B2P1Q/BR1n1kr1 w - - 0 1 illegal: No possible last move
2b2R2/nr1BN3/N1P2Pb1/Nn1p2qb/2rQ1B2/2rBnNn1/1k5K/1n1B4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h4 Nf6 g4 Bg7 b4 Na6 f5 Qb6 Ra3 Qc5 Rf3 Ng8 Rf4 gxf4 g5 Nb8 g6 Qc7 Ke2 Bf6 Ke1 Bg5 hxg5 Qd8 Kf2 a5 Kg2 d5 c4 Kd7 b6 Kd6 c5+ Ke5 b5 h5 b7 d3 b6 Kd4 c6 e5 g7 e3 g6 f3+ Kh2 a4 Nh3 h4 Bg2 a3 Qf1 a2 Kg1 a1R Nc3 f2+ Kh2 d2 Na4 d1B Qg1 f1B Nb2 Kc3 Ng5 e4 Ne6 h3 Nf4 e2 Qf2 e1N Be3 R1a7 Ne6 Na6 b8N Rb7 Nc4 Nc7 Bf3 Ra3 Ng5 Ng2 Nd7 Ne7 g8B Rh4 g7 Bd3 Nf6 Nb5 Bf4 e3 Be6 e2 g8B e1N Bh7 Nc2 Ng8 Nge3 Na5 Kb2 Bd7 Rc3 Rf1 Be4 Be2 Nca3 Nf3 Nb1 Bd3+ Be2 Bc2 Bd1 Qd2 Be2 Qd4 B4d3 Bd1 Bc2 Ne1 Bh5 Nf3 Be4 f6 Beg6 Rh1 Qc7 Rg1 Qe5 Re1 Qg5 Rh1 N7f5 Ne7 Na7 Rg1 Nd6 Re1 Be8 Bd3 Beg6 Rh1 Ndb5 Rg1 Rc7 b7 Rg4 b8N Rb7 Na6 Rh4 Kh1 h2 Rg4 Nc4 Kg2 h1N Rg3 Rg4 Kh2 Ne3 Rh3 Ng3 Rh4 Be8 Rh3 Bhg6 Rh8 Bef7 Rf8 Bh5 Bb8 Re4 Bf4 Bfg6 Qb6 Ra4 Qd4 Rc4
Kb5B/3Q1B2/P1P1bq1R/6N1/1rB3N1/1qbN4/Bp3bnb/k2nr1Nq w - - 0 1 legal: proof: b4 a5 g4 axb4 d4 e5 f4 c5 dxc5 f5 fxe5 fxg4 a4 h5 Ra3 h4 Rg3 hxg3 Kd2 Kf7 Ke3 Ke6 Kd4 b5 c4 d5 h4 g5 e4 g2 h5 b3 a5 b2 a6 b4 h6 b3 h7 g3 c6 g4 c7 Bg7 Kc5 d4 Kb6 d3 c5 d2 c6 Nd7+ Kb5 Nc5 Kb6 Ne7 Na3 b1Q Rh2 b2 Rh5 Ng6 Nc4 Qf6 Bd3 Rb8+ Ka7 Nh4 Qf1 d1Q Bh6 Qb3 Qd1 Re8 h8N Na4 Nf7 Rb4 Ka8 Nc3 Bf1 Bd7+ c8B Qc1 Qd2 Nd1 Qd4 Bh8 Bg7 Qb1 Rh6 Re7 Ne2 g1B Qa7 Bd4 Ng1 g2 Qc7 g3 Qb7 Re8 Ng5+ Ke7 e6 Be5 Be2 Bb8 Ne5 Kd6 e7 Kc5 Nd3+ Kc4 e5 Be6 Qd7 Kc3 Bf1 Kc2 Be2 Qa1 Bf1 Kb1 Be2 Rd8 e8B Ka2 Bf7 Re8 Nf4 Qb1 Bc4 Ka1 Nd3 Re7 Ne1 Qe4 Nd3 Qe1 N1h3 Qh1 Ng1 Bg4 e6 Re8 Ne2 g1B e7 Bf2 Ng1 g2 Rh7 Be6 Rh6 Rg8 e8N Rf8 Nd6 Rg8 Nf5 Re8 Ne3 Re7 N1h3 g1B Ng4 Bgh2 Ng1 Qg6 Bf6 Ng2 Bc3 Bg7 Be5 Bf8 Bh8 Bg7 Qd6 Bc3 Qd4 Bf5 B8e6 Qf6 Qd7 Re8 Bed5 Re1 Bde6 Qa4 Ba2 Qb3 Bc4 Be6
B5br/3b2n1/Kr2q1B1/NB1rRqP1/1Q5B/1p2Pq1n/1r2N2n/k3NN2 w - - 0 1 illegal: No possible last move, all moves rejected
2Q5/br3RRR/2K2Nqn/5p2/b1P1r1R1/r4Nqr/qP2N1n1/Nk2B1b1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 axb5 e6 f5 Bb7 Kd2 Ba6 Ke1 Bc8 g4 h5 g5 f6 Bh3 exf5 Bg4 hxg4 gxf6 Be7 Kf2 Bc5 Ke1 Bf8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 h4 Ke4 f7 a5 c3 d5+ Kb3 g5 Ka4 g3 b6 g4 Kb5 d3 c4 g2 e3 d4 h5 a4 b7 a3 h6 a2 h7 d2 Qa4 Kd3 e4 d1R e5 g3 e6 Nc6 b8R Qd6 e7 Ne5 e8N Qg6 Rh5 Ng4 Nc7 Re1 Rb7 N8h6 Nd2 Ne3 Qa5 Kc2 Qa6 d3 Ne2 g1B Nd5 g2 Nf6 Bc5 f8R Ba7 Nb3 d2 Rg7 d1R Kc6 Rd7 Bd2 Rb7 Rff7 Be6 Rd1 a1Q Rh3 Qa2 Na1+ Kd3 Rh4 Bc8 Rg4 Bd7+ Kd6 Ba4 Rc1 Rf1 Be1 Rf4 Qc6 Re4 Qc8 Bf2 Rb1 g1Q Rc1 Ng2 Rb1 Rg8 h8N Qh2+ Kd5 Bg1 Rh7 Qg3 Rhg7 Qg5 Ng6 Rh8 Nh4 Qg6 Nf3 Rh7 Nb3 Kc2 Ra1 Rb5+ Kc6 Rh8 Rd1 Rh7 Rdd7 Kb1 Na1 Rb7+ Kd5 Ng8 Rde7 Rh3 Rh7 Nh6 Rfg7 Rab8 Rc7 Rb3 Rcf7 R8b5+ Kc6 Rd3 Nh2 Ra3 Nf3 Rb7+
1rr4q/nq2bk1r/pN1R4/b7/Qn3qPB/NNR3R1/1PN1K3/1Rb1q3 w - - 0 1 legal: proof: g4 c5 e4 f5 d4 cxd4 a4 b5 axb5 g6 f4 Bb7 g5 Bd5 h3 Bc4 Bg2 Be2 Bf1 Bg4 hxg4 Na6 Bc4 Nb8 Be6 fxe4 f5 Bg7 f6 Bf8 Bf5 gxf5 c4 e5 c5 d5 g6 h5 g7 a6 b6 f4 b7 e3 c6 h4 c7 e2 c8R d3 Bd2 f3 Qb3 h3 Ra4 d4 Rh2 e4 Bb4 f2+ Kd2 f1Q Na3 e1B+ Kd1 d2 Bc3 e3 Re2 h2 Rac4 h1Q Bb4 Ne7 g8R Qf4 Rg2 Rh7 Nf3 Nd5 Rc1 Nc6 b8N Na7 Nc6 Rb8 Rg6 Be7 f7+ Kf8 Rd6 e2+ Kc2 d1R Na5 Bf2 Be1 Be3 Bh4 e1B Rb1 Rc1+ Kd3 Rc4 Rc5 Bc1 Ke2 Kg7 f8N Kf7 Nd7 Qh8 Nb6 d3+ Kd1 d2 Ke2 Rc3 Nd4 Rc2 Qa4 Rc3 Rb5 Rcc8 Rg3 Qg2+ Kd3 Qh1 Nab3 Qg2 Rc5 d1Q+ Kc4 Bed2 Kd3 Qe1 Ndc2 Ba5 Rc7 Nf6 Rc3 Qb7 Rh3 Nd5 Rg3 Qg1 Ke2 Nb4 Rd7 Qgh1 Rd6 Qe1+
1k1n3r/2R2P2/2R1nnRB/1q1QR1bN/p3b3/Pn1b4/5BBr/qBr3K1 w - - 0 1 legal: proof: b4 b5 h4 d5 c4 g5 e4 gxh4 a3 f5 Nc3 fxe4 cxd5 c5 bxc5 b4 Na2 b3 Be2 bxa2 Bd3 Qd6 Bf1 Qd8 d4 Kd7 g4 Kc7 f4 h5 Kf2 a5 c6 e5 f5 e3+ Kg2 e4 f6 e2 g5 e1R f7 a4 g6 e3 g7 e2 Bh6 Nf6 g8R Bf5 Nh3 Qd7 Nf4 h3+ Kg1 h4 Rg6 Bd3 Rc1 a1N Nh5 Be7 d6+ Kc8 c7 Nc6 d5 Nd8 Rc2 Qb5 Rc6 Nb3 d7+ Kb7 c8B+ Kb8 Qd2 Rc1 d6 e1N Bg2 Nc2+ Qd1 Ncd4 Rc7 N8e6 d8R Nc6 Re8 Ncd8 d7 Ra6 Bcb7 Rac6 Rh2 R6c2 Bge4 Ra2 Rhc2 Rb2 R2c6 Re2 Kf1 h2 Ba8 h1B Kg1 h3 Bb7 Bc4 Bb1 Rh2 Ba8 Bf1 Qd5 Be4 Bb7 Bb4 Ba8 Bd2 Bb7 Bg5 Re7 Nec5 Re5 Nce6 Ba8 Nb7 d8B Bc4+ Qd1 Bcd3 Be7 Nbd8 Bc5 Re8 Bb6 Rh8 Bf2 Bf5 Ng3 Bf1 Nh1 Rc5 Bc2 Be2 Qd4 Bed3 Ra6 Rc4 Bf3 Bfe4 Rac6 Rc5 Ng3 Rg2+ Kh1 h2 Nh5 Rg4 Qd5 Rh4 Kg2 h1Q+ Kg3 Bf5 Bg2 Qa1 Bb1 Rcc4 Rg7 Rc1 Rg6 Rg4+ Kh2 Bfe4 Be1 Rh4+ Kg1 Rc2 Bg3 Rh2 Bf2 Rc1+
N3N2q/PqnN1Rb1/4np1B/NQ3Krq/1B3PB1/2q2n1B/7k/b4rr1 w - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b6 d4 Kd7 h4 gxh4 e5 Bb7 d6 Ke6 d5+ Kf5 b3 a5 b4 Bc8 e6 Bd7 exd7 axb4 Rh2 Kg6 Rh1 Kf6 Kd2 Ke5 Ke3 c5 a4 h5 g4 f6 g5 b3 g6 b2 f3 h3 a5 c4 g7 c3 a6 h2 a7 c2 Ne2 h4 Qe1 b5 Qd2 h3 Ra4 b4 Bg2 b3 Rh4 Rh6 Nbc3 b1Q Ng1 b2 Rg4 Na6 Ne4 Qa5 d8N Nc5 d7 Rg6 d6 Qc3+ Qd3 Ne6 Nb7 Re8 Bd2 c1B Na5 Rb8 d8N Rb4 Nc5 Rf4 Ne2 Rf5 Rd1 h1Q d7 h2 Ndb7 Rfg5 d8B Rf5 Rd4 Rfg5 Bh3 Rg1 Rd7 Rf1 Nd4 Rfg1 Ke2 Rf1 Be1 Kf4 Bd2+ Kg3 Qb5 Qf5 f4 b1R Nd6 Bb2 Ne8 Ba1 Rd5 Qg5 Nd7 Qh5+ Bg4 Rc1 Rg5 Qb7 Bb6 h1Q Bc5 Kh2 Be1 Qch3 Beb4 Qc3 Rd3 Rg1 Ke3 Rcf1 Bd6 Nc5 Bh3 e5 Ne6 e4 N6c7 Ne7 g8B Bg7 Bge6 Qh8 Bef5 Ne6 Bfg4 Qh5 Na8 Nd5+ Ke2 e3 Bf8 Ndc7 Rdd5 Qc5 Kd3 e2 Rd4 e1N+ Ke3 Bh8 Bh6 Nf3 Kd3 Bg7 Rc4 Qb8 Ke4 Qc8 Rd4 Qc3 Kf5 Qb7 Rd6 Qg2 Rc6 Qgd2 Rc5 Qd6 Re5 Qf8 Rd5 Qh8 Re5 Nd8 Re7 Nde6 Rf7 Rxg5+
1b1k4/Bb1r2Nr/B3r1r1/2R1n3/1KPqn1N1/bB1P1B1N/1p1r4/N1b2Q2 w - - 0 1 illegal: No possible last move
2B4n/bB1r1R2/b3P3/1n5r/1p1bRN1k/RP1B2q1/B2K1qb1/R4Qqq w - - 0 1 legal: proof: c4 e5 f4 exf4 a4 g5 h4 d5 b3 a6 Ba3 a5 Bb4 axb4 Nc3 bxc3 cxd5 c2 hxg5 c1Q Rb1 Qc3 Rc1 Qa1 d4 Ke7 g4 c5 e4 f5 e5 h5 g6 b5 g7 f3 a5 c4 a6 f2+ Ke2 b4 a7 c3 e6 Kf6 d6 Kg5 d5 c2 d7 f4 d6 f3+ Kd2 h4 Rb1 h3 Ne2 h2 Nf4 Kh4 g5 Nh6 g8B Na6 g6 Nc7 g7 Nb5 Bh7 Qg5 d8R Nf7 g8B Ba6 d7 Bc5 Bhd3 Rh5 Bgh7 Nh8 Rf8 Bd4 d8R Qg3 Rf7 Rb8 a8B Rb7 Re8 Rd7 Bb7 Ba7 Rg1 h1Q Ra8 Bd4 Bg2 f1B Bc8 f2 Bgb7 Bg2 Re1 f1Q Re4 Qff3 Qf1 Ba7 Rc1 Qag7 Ra1 c1B+ Kc2 Bb2 Kd2 Bbd4 Bb1 Qfg4 Ba2 Q7g5 Re2 Q4f3 Bd3 Qgh2 Ree1 Q2g1 Re4 Qgg3 Rd1 Bb8 Bc6 Bb7 Ra3 Bba7 Ra1 Ba6 B6b7 Qff2+
QB1q2q1/1Rr4R/1b2p1rN/2NNP2P/1q3Nrk/2r3n1/R5R1/nqq3K1 w - - 0 1 legal: proof: g4 f5 a4 c5 d4 cxd4 b3 fxg4 Bf4 g3 Bh3 a5 Bc1 h5 Bg4 b5 Bg5 g2 Bh6 Ba6 axb5 hxg4 b6 a4 Bc1 a3 Qd3 Bb5 Qd1 Ba4 bxa4 Rh6 Qd3 Rh3 Qd1 Rh8 f4 Kf7 Kf2 Kf6 h4 g5 c4 d5 e4 g3+ Kf3 e6 b7 d3 a5 a2 h5 g4+ Ke3 d2 f5 Kg5 a6 d4+ Ke2 d3+ Ke3 Ra7 c5 Nc6 b8R Nf6 Nc3 Nb4 c6 Rc7 Qf3 d1Q a7 d2 a8R Qa4 Nd5 d1Q Nh3+ Kh4 Ra7 g1R Rbb7 g2 Kf2 Nc2 Bf4 Qb4 Rh2 Qc1 Bd6 Rh6 e5 Rg6 Qa3 Re1 Qa5 g1R Rg2 Rd1 Nhf4 Rd3 Qa3 Rc3 Qa4 Ne8 f6 Ng7 f7 Nf5 Qa6 Bh6 f8N Nfe3 Nd7 Nf1 Nc5 Qcb1 Nf6 Qc1 Ng8 Bg5 Nh6 Be7 Rb1 a1Q Rb2 Qab1 Ra2 Na1 Qa3 Rc8 Bb8 g3+ Ke2 Bd6 Rh7 Be7 Rb7 Rc7 Qa8 Bg5 Nd5 Be3 Nf4 Rd7 c7 Rg4 c8N Rc7 Nb3 Bb6 Ne7 Rg6 Nc5 Rg4 Rf2 g2 Ned5 Rh1 Qa5 g1Q Qa8 Rhh3 Rg2 Rhg3 Qa7 Rg6 Qa5 R3g4 Qa8 Qh2 Kf2 Qg8 Nh3 Qg3+ Kg1 Qgd3 Nhf4 Qdd4+ Ne3 Qdd8 Ned5 Ng3+
1nKr4/R1NP4/1Q2Rp2/nNq2Nnb/1BRb1qP1/1k4N1/4n3/n2q1qR1 w - - 0 1 illegal: No possible last move, all moves rejected
NK4RR/2b1N3/3nR1rp/bRqn4/N2n1r1k/2Pp1bNP/B4q2/4Qq2 w - - 0 1 legal: proof: b4 e5 f4 g5 d4 f5 a4 c5 e4 b5 axb5 exd4 bxc5 fxe4 f5 Bd6 Bd2 Bf8 Bf4 gxf4 Kf2 Kf7 g4 Kf6 c6 Kg5 f6 d5 f7 a5 h3 d3 b6 f3 Ke3 d2 Kd4 e3 Ke5 d4 b7 h6 c7 a4 Bb5 f2 Qe2 d1N Bd3 f1Q Qe1 e2 Nc3 a3 Rb1 a2 Na4 a1Q Bc4 Ne3 Rb5 Qa3 Ba2 d3 c3 Nf6 Rh2 Bb4 f8N Ne4 Nd7 Nd5 Ndb6 Ra6 Na8 Nd6 Rg2 Bd7 c8N Qb6 Ne7 Bc6 Rf2 Re8 Rf6 Qbf2 Re6 Kh4 g5 Rf8 g6 Ba5 g7 Qc5 g8R Rf4 Rh8 Be8 Rg8 Bh5 Rh8 Bf3 Rg8 Rc6 Rh8 Na6 b8R Nac7 Rbg8 Ra6 Qd2 e1B Ne2 Rc6 Qc1 Bd2 Qe1 Bc1 Ng3 Ba3 Rf6 Ne6 Rfg6 Nd4 Rf6 N4f5 Ke6 B3b4 Kd7 Nd4 Rfg6 Bc7 Re6 Nf7 Kc8 Bba5 Re3 Rg6 Re6 Bd8+ Kb7 Nd6+ Kb8 Bdc7+
4q1qB/B1N5/r1P2q2/N2nB1Qp/2p3bB/2Nk1bNP/r2n4/1rnR2K1 w - - 0 1 legal: proof: f4 e5 a4 exf4 g3 b5 axb5 Bd6 Ra6 Bc5 Ra1 Bf8 Nf3 f5 Ng1 f3 Kf2 Bd6 Ke3 f4+ Kd3 f2 Kd4 f3 Kc3 Bf4 gxf4 Kf8 Bg2 Kf7 Bf1 Ke8 b4 c5 b6 d6 b5 Qe7 Ra4 Qd8 Rb4 Qh4 Kb3 Qd8 c4 Be6 Bh3 Bc8 Kc2 cxb4 c5 d5 Bf5 Bb7 Bd3 Bc8 Bc4 dxc4 d4 Kf7 Kd2 Ke6 Ke3 Kd5 h3 f1Q f5 a5 c6 g5 f6 h5 b7 b3 f7 a4 f8B a3 b6 f2 Be7 a2 Qd2 a1Q Bb2 g4 Bh4 Nd7 b8B g3 b7 g2 Be5 Ne7 b8B Nf6 Ba7 Qg8 Kf3 Bd7 Qg5 Qe1 e3 f1B Ne2 Be6 Ng3 Ne4 Rg1 Bd3 Rh1 g1N+ Kg2 Bg4 Nc3+ Ke6 Kh2 Nd2 e4 Ne2 Rf1 Nc1 Kg1 Qe2 Rd1 Rh7 Bh8 Nd5 e5 Bg6 Qe3 Be4 Qg5 Qa3 Ba1 Qaf8 Bb2 Qf6 Ba1 Ke7 e6 Kd6 e7 b2 e8N+ Ke6 Nc7+ Kd6 Bg7 b1R Bh8 Bef3 Bb2 Qee8 Ba1 Nb6 d5 Kc5 d6+ Kd4 d7 Kd3 d8N Nd5 Nb7 Re7 Na5 Re2 Be3 Ra6 Ba7 Re7 Na2 Rd7 Be5 Rd8 Nc3 Rdb8 Nf5 R8b2 Ng3 Ra2
bq2r3/bN1Bb2k/b1K5/NNPPbr2/q2B4/1B1r1p2/Rp2Q1B1/5N1n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 Bb2 dxe4 Bc1 h5 gxh5 c5 Bd3 c4 Be2 Ra7 Bf1 Ra8 f4 e5 a4 e3 Ra3 e4 Rc3 Nc6 Rb3 Ne5 fxe5 cxb3 Ke2 g5 h4 b5 d4 f5 c4 Kf7 h6 Kg6 h5+ Kh7 e6 f4 a5 g4 e7 g3 e8B b2 a6 b3 a7 b4 Bd7 g2 Rh2 Qg5 Na3 b1B Nf3 g1B Bg2 b2 Nd2 b3 Nb5 Ba6 Nf1 Rd8 a8B Nf6 Bd5 Ng4 Bd2 Bc5 Bc3 Qh4 Qe1 Ba7 c5 Rhf8 Bc4 Rf5 Bd5 Kh8 h7 Nf2 Bg8 Kg7 h8N Nh1 Nf7 Re8 Ne5 f3+ Kd1 e2+ Kd2 Ba2 Nc4 e3+ Kd3 b1R Bd5 Kh7 Na5 Rd1+ Kc4 Rd3 h6 Bf2 Qd2 e1B Qe2 Bg3 Bf7 Be5 Kd5 Qd8 Kc6 Bh4 Bc4 Be7 d5 Qb8 Bd4 b2 Rh4 Bb1 Bb3 Bc2 Rf4 Kg6 h7 Bd1 h8N+ Kh7 Qc2 e2 Nf7 e1Q Nd8 Qb4 Ndb7 Qc4 Re4 Qa4 Re1 Be2 Ra1 Bd1 Qe2 Bc2 Ba2 Bb3 Nd8 Bc4 Bb3 Bc8 Ra2 Ba6 Bc8 Bb7+ Kd7 Qb4 Nd6 Bca6 Nb5 Ba8 Ndb7 Bg7 Kc6 Be5 Bd7 Qa4
2N2B2/4n2k/3R2p1/rRrR1qq1/2p4r/1rP2PrN/QRNbbK2/4N1q1 w - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 axb5 f5 b4 fxg4 b6 a6 b7 Bf5 Qe2 Be6 Qd1 Bc8 h4 g6 h5 Nc6 h6 Nd4 b5 Ne6 b6 Ng7 Bb5+ axb5 hxg7 Bf5 Rh2 Be6 Rh1 Bc8 b8N Kf7 d4 c5 f3 e5 c3 h5 d5 h4 d6 g3 d7 e3 b7 h3 Ke2 b4 Bd2 b3 Rh2 b2 Ra3 g2 Na6 e4 b8R Ne7 g8N Kg7 Qe1 Rh5 Qd1 Kh7 Bc1 Bh6 Ke1 e2 Rb5 Bd2+ Kf2 e1R Nc7 Ra5 Ne6 Ba6 Qc2 Rf5 Nd4 e3+ Kg3 e2 Kf2 Qf8 d8R Rh5 Ra4 Qf5 Na3 b1R Qa2 Rb3 Ndc2 Rg5 Bb2 Rg3 Rad4 Rd1 R4d6 e1R Rd5 Re4 R8d6 Rh4 Ne1 Ra1 Rh1 h2 Nac2 Rb1 Nh3 g1Q+ Ke2 Rd1 Ba3 Qe3+ Kf1 Qeg5 Kf2 Rdb1 Rg1 h1Q Rg2 Ra1 Rb8 Bf1 Rb5 c4 Bb4 Be2 Bc5 Nc6 Ne7 Rab1 Nc8 Ne7 Bd4 Rd1 Bg7 Ra1 Bf8 Qh2 Rb7 Rc5 Rb5 Qh1 Qb2 Ra4 Qa2 Ra5 Rg1 Kh8 Nd3 Rb2 Rb1 Kh7 Nde1 Rb3 Rb2 Qg1+
3Q1RR1/3P3B/BBBN3n/p2P1r2/K3bqR1/np2n3/1kn2nn1/bn4R1 w - - 0 1 legal: proof: b4 b5 a4 bxa4 h4 g5 e4 gxh4 Na3 e5 Nb5 d5 f3 a5 exd5 e4 f4 Ra6 Ra3 Re6 Ra1 Re5 fxe5 Ke7 Nc3 Ke8 b5 c6 Na2 c5 Nb4 cxb4 d4 Ke7 Kd2 h5 c4 f5 Kc2 f4 g4 a3 Kb3 e3 d6+ Ke6 c5 Kd5 e6 e2 c6 e1N g5 a2 g6 h3 g7 f3 b6 f2 b7 h4 c7 h2 d7 h3 e7 Na6 e8B Qh4 b8R Ng2 Bg5 Rh5 Rb1 a1N+ Ka4 b3 Be7 Nc2 Rb4 Nh6 g8R Bb7 c8B Qf4 Qc1 Rf5 Qb2 Na3 Nf3 Bg7 Rg1 h1N Ne5 h2 Nf7 Ng3 Nd6 h1N Bg6 Ne4 Bb5 f1N Bh7 Ned2 Bd8 Nf2 Bb6 Nfe3 Rbf1 Ndb1 Rc4 Nb4 Bc6+ Ke6 Qe2 Nbc2 Qh5 Ba8 Ba6 Be5 Qh4 Bb7 Bcb5 Be4 Qd8 Bh8 d5+ Ke5 Bc6 Bf6 Rc5 Kd4 Rb5+ Kc3 Rb4 Kb2 Rd4 Bd3 Rc4 Qf3 Rcg4 Be4 Rf8 Qf4 Rgg8 Nge1 R1g4 N1g2 Rc1 Ka2 Re1 Ba1 Rg1 Kb2
1n1R4/1R1N1QrR/B4q1r/1PbP1B1q/8/1pRKrqb1/p1B5/2r1Bk1b w - - 0 1 illegal: No possible last move, all moves rejected
2R2bK1/3bR2r/N1QnP3/N7/p1Bb4/2r2N2/r1RPp1N1/knn2rbR w - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 c5 b6 d5 Bc4 dxe4 Bd3 Rh3 Bf1 Rh8 f4 e5 b4 e3 b5 e4 Ba3 Qg5 Bb4 Qe5 fxe5 cxb4 Ke2 Kd7 c4 Ke6 h4 g5 b7 a5 h5 f5 h6 b3 c5 Kd5 b6 Kc4 h7 f4 e6 g3 c6 f3+ Ke1+ e2 c7 g2 Kf2 b2 Ke3 g4 Kf4 f2 Kg5 e3 Kg6 g3 Kf7 Ne7 Rh5 Nd7 b8N Nc5 b7 Bd7 c8R Nf5 Qc1+ Kb3 Nf3 g1B Na3 e1R Nc4 b1N Na6 g2 b8N Nd3 Rh1 a4 Be2 f1R Ra2 Rd1 Rc2 Nd6+ Kg6 Ra7 Nc6 Rc7 Re8 Bf2 Re7 g1B Kf6 Nb2 Bd3 Ka2 N6a5 e2 Ne3 Rc3 Bc4+ Ka1 Ng2 Nd3 Kg6 Rg8+ Kf6 Rg7 h8R Rh7 Rg8 Bd4+ Kg6 Bh6 Rc8 Bf8 Rg7 Nb5 Kf7 Nd6+ Kg8 Rde1 Re7 Rd1 Rb2 Rde1 Qc2 Nc1 Qe4 Ra3 Rc2 Ra2 Nfh4 Rf3 Qc6 Rc3 Nf3 Rf1
6NR/1R1nr3/bpR1qp2/p1N1Nr2/Q1Pbq2B/P3nqK1/2N1R3/5k1r w - - 0 1 legal: proof: g4 e5 f4 exf4 g5 c5 c3 f3 Bg2 fxg2 Nf3 d5 Ng1 d4 cxd4 c4 g6 hxg6 b3 g5 bxc4 g4 Bb2 g3 Ba3 Be6 Bc1 Bc8 e4 Kd7 h4 Ke6 d5+ Ke5 d4+ Kf6 d6 a5 e5+ Kf5 e6 Ke4 h5 g5 h6 b6 h7 g4 d7 Bc5 e7 Ba6 e8N Nf6 d5 Qe7 d8R Rf8 h8R Bd4 d6 Nd5 d7 Ra7 Na3 Ne3 R1h7 Qe6 Qa4 Kd3 Rc8 Rc7 d8N Re7 Nc2 Nd7 a3 Qe4 Nf3 Qe6 Nd2 g1Q+ Nf1 g2 Nb7 g3 Ra2 Qe4 Rc6 Qh2 Nf6 g1R Ng8 g2 Kf2 Rh1 Nd2 Qh5 Kg3 Ke2 Nf3 Kf1 Nc5 Qe6 Ne5 g1Q+ Kf4 Qg7 Rb2 Qgf6+ Kg3 Qff5 Ra2 Qe4 Rg7 Nd1 Bg5 Ne3 Bh4 f6 Rc7 Rc8 Rb7 Rc6 Rf7 Rc7 Rf8 Rc6 Rc8 Rd6 Rc6 Rd5 Ned3 Rf5 Ne5 Ng4 Na1 Ne3 Re2 Rf4 Nc2 Rf2 Rd6 Rf5 Rc6 Qhf3+
Q2n4/P3R3/1p1R2qp/1P1r1R1N/2b3bp/b1R1Kbb1/3N1r1N/kNB2q2 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 exf4 h5 a4 h6 gxh6 Rh2 h5 Rh1 h4 b4 c5 d4 Nd7 e3 c4 Be2 Nc5 dxc5 Qb6 Bd3 Qc7 Bc2 Qd8 Bb3 axb3 Kf2 Ke7 a4 Kf6 g4 Ke5 a5 f5 e4 b6 d6 h6 c6 b2 b5 c3 g5 c2 d7 f3 c7 f4 a6 Qe8 d8R Qg6 a7 Bd6 Ra3 Bg4 c8N Ne7 Rc3 Rf8 Rh3 Bb8 Nd6 Nc6 Qf1 Kd4 e5 Rf5 e6 Rd5 e7 Bc7 Rf8 Nd8 e8R Bb8 Rf5 Bc7 Na3 b1B Qg2 Ba2 Re2 Bc4 Re7 Be2 Ne4 Bd6 Bd2 c1B Nb1 Bca3 Bc1 Rc8 Rc6 Bb8 Rce6 Rc2 Rd6 Kc4 Rg3 Kb3 Ned2+ Ka2 Qh1 Ka1 Rh3 Qh7 g6 Bc7 g7 Qg6 g8N Bd1 Kf1 f2 Ngf3 Bb8 Kg2 f1B+ Kf2 Bc4 Nh2 f3 Ke3 f2 Nf6 f1Q Qe4 Bdf3 Nh5 Rd4 Qa8 Rd5 Ne4 Rf2 Ned2 Bfe2 Ke4 Bc7 Rc3 Bef3+ Ke3 Bb8 Rde6 Be5 Rd6 Bg3
2RBb3/B1p1q3/1qp2P2/5q1b/R2rp3/1K3R2/QRrbPrB1/r1kN2B1 w - - 0 1 legal: proof: f4 a5 c4 f6 g4 Nh6 b4 axb4 c5 Nf7 c6 dxc6 Nc3 Nh6 Ne4 Ng8 g5 f5 Nf2 Ra6 Ng4 fxg4 Nf3 Ra4 Ng1 Ra8 h4 g6 f5 g3 f6 Kd7 f7 Na6 Rh2 Nc5 Rh3 Nf6 Rh1 Ne6 gxf6 g5 Rh3 g4 Rh1 Ng5 hxg5 Kd6 Bg2 Ke6 Bf1 Kd7 a4 Ke6 d4 Kd5 Kd2 Ke4 Kc2 h5 d5 b5 a5 e5 g6 g2 a6 b3+ Kb2 h4 d6 g3 d7 h3 a7 h2 g7 b4 g8R Rh4 Ra4 Bh6 Ra3 Qe7 d8B Bg4 Nh3 g1Q Bg5 g2 Re8 Qb6 Qd7 g1R Qd1 Bh5 Qc1 Rg2 Nf2+ Kd4 Rg1 h1R Qb1 Re4 Bh4 Ke3 Bg3 Kd2 Bh2 Rc4 Rf8 Rgg4 Bg2 Rgd4 Re1 Rf1 Bg1 Rc3 Rg8 Be3 Rg3 Rcc4 Nd1 Rf2 Nc3 Bg5 Rf3 Bf4 Ka1 b2+ Ka2 Rc5 Qa1 b1B+ Kb2 Bd3 Rb1 b3 Nd1 Bdg6 Ra6 Bh6 Ka3 b2 Ra5 Rc8 a8R e4 R5a6 Rc2+ Ka2 Qb5 R6a7 Rb8 Ra4 Rb7 Rc8 Qf5 Raa3 Ra7 f8B Qed7 Ra5 Be8 Bc5 Ra6 Ba7 Bf4 Rc1 b1Q+ Ka3 Qb7 Rb1 Qb6 Rb2 Qe7+ Ka2 Qbc5 Kb3 Qb6+ Rb5 Bg5 Rb4 Bf4 Qb1 Ra1 Qa2 Be3 Bf1 Kc1 Bg2 Qa6 Rc4 Bd2 Ra4 Qb6+
2N1krRn/2p1p3/2qR3q/Pb1p2Q1/3b3b/R1p5/1nbPB3/1NN1NRK1 w - - 0 1 legal: proof: c4 b5 f4 f5 e4 h6 exf5 a6 g4 Ra7 g5 Kf7 f6 Ke6 f5+ Kd6 b4 Rb7 Bb2 Kc6 Be5 Ra7 Bf4 bxc4 b5+ axb5 f7 c3 Be3 Ra6 Bf4 Kd5 Be3 Rf6 gxf6 Kc6 Bg5 hxg5 Kf2 d5 h4 Kd7 a4 b4 h5 g4 h6 g5 h7 g3+ Kg2 g4 a5 b3 Ra2 b2 Qa4+ Nc6 Be2 Bh6 f8R Bg5 f7 Nh6 f6 Ba6 Qf4 Bb5 Rg8 Qf8 Ra3 Nb4 Nf3 Bh4 Qg5 Nd3 Kg1 g2 Ne1 Qa8 f8R Nf7 Rg6 Qc6 Ra8 Rd8 h8N Rf8 Ra6 Kd8 Rg8 Ke8 Ng6 Nh8 f7+ Kd7 Kh2 g1B+ Kg2 g3 Nf4 Bf2 Rf1 Bd4 Kh1 g2+ Kh2 Ne5 Nfd3 Nc4 Nc1 g1Q+ Kh3 Qe3+ Kg2 Rb8 f8N+ Ke8 Kh1 Qf4 Nd7+ Qf8 Nb6 Rd8 Rg6 Qh6 Kg2 Rd6 Nc8 Rf6 Rg8+ Rf8 Ra2 Qd7 Rd6 Qc6 Na3 b1B Kh2 Bf5 Nb1 Bh7 Ra3 Bc2 Kg2 Nb2 Kh2 Be5+ Kg1 Bd4+
1rNR1qRn/bqppK3/R4N2/R1N3q1/QnB3p1/2rP1q2/3P1p2/2N4k w - - 0 1 legal: proof: f4 a5 g4 h5 a4 hxg4 b4 e5 b5 exf4 Ba3 b6 Bb4 axb4 a5 Bb7 axb6 Bg2 Kf2 Be4 Ke1 Bd3 cxd3 Ra4 Ra3 Ra7 Ra1 Ra8 Kf2 Ke7 e4 Ke6 h4 Ke5 h5 g5 b7 f5 b6 f3 Kg3 b3 h6 f2 h7 b2 Na3 b1Q Qa4 Bg7 Bh3 f1Q Nb5 Qf8 Nd6 Na6 b8N Nb4 b7 Nh6 Na6 Nf7 b8R Rg8 Nc8 Nh8 Nc5 f4+ Kh2 f3 Kg3 f2 Ne2 Qfd1 Nc1 Qf6 Rb5 Qh6 Rg1 Qe2 Ra5 Qf3+ Kh2 Kf4 e5 Ra6 e6 Rc6 e7 Bd4 e8N Qb2 Nf6 Qb3 Nce4 Rc3 Nc5 Qbd5 Ra3 Qb7 Ra2 Qg7 Bg2 g3+ Kh3 Rf8 Ne7 Rb8 Nc8 Qe3 Be4 Qf3 Bd5 Be3 Bc4 g4+ Kh4 g2 Re1 g1Q Re2 Bd4 Re8 Qe1 Ra3 Qee7 Rg8 Be3 Kh5 Kg3 Rd8 Kg2 Kh4 Nf7 h8R Kh1 Rhg8 Nh8 Kh5 Bd4 Ra6 Qh7+ Kg5 Qhh3 Ne6 Ba7 Nc5 Nf7+ Kg6 Qee3 Kg7 Nh8 Kf8 Qg5 Ke7 Qhh5 Qb5 Qhg6 R3a5 Q6h6 Qa4 Qf8+
1R1N1q1b/1r3n1p/RP1pN1pN/Q4b2/2K1qR2/2B1qpNP/2R2qq1/6k1 w - - 0 1 legal: proof: c4 b5 g4 f5 b4 fxg4 Bh3 a5 Bf1 Ra7 Bb2 Rb7 Ba3 axb4 Bc1 b3 Bb2 b4 Bc1 Rb5 cxb5 Bb7 Na3 Ba6 Nb1 Bc8 d4 c5 f4 c4 f5 e6 f6 Na6 Bg2 Qe7 Be4 Nc5 dxc5 Qd8 Bf5 exf5 Kd2 Kf7 a4 Kg6 e4 Kg5 b6 Kf4 c6 d6 f7 g3 e5 g2 e6 c3+ Kd3+ Ke5 e7 f4 e8N f3 c7 c2 a5 b2 a6 g6 a7 b3 a8R Be6 c8R Qe7 Rab8 Bd7 Bd2 c1Q Bc3+ Kf4 Ng7 Nh6 Kc4 Ke3 Ne2 Kf2 Nf5 g1Q Qd5 Qce3 Neg3 Qg2 Ra6 Bg7 f8N Nf7 Ne6 Qf8 Na3 b1Q Nc2 b2 Nh6 Qbe1 Nb4 b1Q Qa5 Be5 Nc6 Qbe4+ Ned4 Qeg1 Nd8 Bf5 h3 Rg8 Rh2 Rg7 Rc5 Bf6 Rb5 Qge1 Rb4 Kg1 Ra4 Qh1 Rc2 Qg2 Kb5 Q1f2 N4e6 Ng5 Rd4 Rb7 Kb4 Nf7 Kc4 Qh4 Rg4 Bh8 Re4 Qhf4 Rd4 Qfe5 Rf4 Q5e4+
1N1N1N2/brb1P3/qp3QR1/3bK2p/1Rp2n2/q1p2R1n/1p1P2B1/4k1NR w - - 0 1 illegal: No possible last move
b3b1NB/3Bp3/q1r3kN/2pqb1p1/1RpP4/rB1Kn1N1/P3p1Q1/2B2N2 w - - 0 1 illegal: No possible last move, all moves rejected
6N1/r2n1b2/1Bb5/q2Nb1np/NQBB3P/1rB1r1kP/R4qnr/2KNq3 w - - 0 1 illegal: No proof kernel
2K4n/1p2rnb1/1PQB1RqN/N4Nb1/2R1rP2/1N1k1b2/2q2pn1/q2nR2R w - - 0 1 illegal: No proof kernel
2Q1b1B1/r1pbK3/3np3/bRq2Pkn/1B2q3/1B4r1/Rr1NP1r1/1qRR2B1 w - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 axb5 dxc4 h4 f6 Nc3 gxh4 Ne4 Qd3 Ng5 Qd5 Ne4 Qd8 g5 f5 Nf6+ Kf7 Ng4 fxg4 Ra3 Ke8 Ra6 Nd7 Ra1 Nb8 d4 Kf7 Kd2 Kg6 Ke3 h5 Kf4 a5 Ke5 g3 b4 e6 f4 h3 b6 a4 b7 a3 d5 c3 b5 h2 d6 g2 b6 h4 d7 a2 Rb1 a1Q Nf3 g1R Qd4 h3 Rb4 c2 Nd2 Nh6 Bb2 c1Q Bc3 Rg3 Bg2 Ra7 Ra4 Bb4 Ra2 Qab1 Bd5 Ba5 Bb4 Nf5 Bb3 Nd6 f5+ Kh5 g6 Qh4 d8R Kg5 g7 Bd7 g8B Qc5+ Qd5 Rg2 Re1 h1R Rc1 Be8 Rd7 h2 Rd8 Rhg1 Rd7 Na6 b8B h1B b7 Rg3 Rd8 Be4 Rd7 R1g2 Rd8 Bd3 Rd7 Bb5 Rd8 Ra8 Ba7 Bbd7 b8R Qhc4 Rb7 Nb8 Rb5 Rh4 Bb6 Qcd3 Ba7 Rc4 Bb6 Rc2 Ba7 Rb2 Bb6 Kh4 Kf6 Ra7 Qa8 Qe4 Ke7 Kg5 Qb7 Bc6 Qa8 Nd7 Qc8 Nf6 Rd7 Nh5 Rd8 Qc3 Bg1 Bcd7 Rc5 Bb5 Nc4 Nf7 Rdd1 Bbd7 Rb5 Nd6 Nd2 Qc5
4n2k/3b1bRp/3K2R1/5R1q/P1rbBBRr/3Np1nB/1BQrPb2/3r2r1 w - - 0 1 legal: proof: g4 a5 c4 g5 h4 d5 b4 axb4 cxd5 f6 Nc3 gxh4 Ne4 Ra6 Ng5 Ra4 Ne4 Ra8 g5 f5 Nf6+ Kf7 Ng4 fxg4 Qc2 Ke8 Qb3 Ra4 Qd1 Ra8 f4 Kf7 Kf2 Kg7 Ke3 c5 Ke4 b5 Ke5 c4 d4 g3 a4 b3 g6 b4 f5 c3 d6 g2 d5 h3 d7 b2 d6 b1B Qd3 b3 Qd2 b2 Qf4 h2 Bd2 c2 Qf3 c1B Qb3 Qe8 d8R Nd7+ Kd5 e5 Nh3 g1R Nf4 e4 Nd3 Nh6 Bf4 Be3 Bh3 Bd4 Qc2 Ba2+ Kc6 b1R f6+ Kg8 g7 Qh5 Re8 e3 Re6 Be7 Re4 Rgd1 Rg1 h1R Rg6 Nf5 Kc7 Rb4 Kc6 Rd2 Rag1 Bf7 R1g4 Rf1 Re5 Ng3 Rf5 Rfd1 Rfg5 Nc5 d7 Ne6 d8B Bd7+ Kd5 Rg1 Ba5 Bd8 Kd6 Rc8 Rf5 Rbc4 Bc3 Ba5 Rfg5 Nc7 Bb2 Rdd1 Rf5 Be1 Rfg5 Rb8 Rf5 Bf2 Rfg5 Rbb4 Rf5 Bfe8 Rfg5 Kf7 g8B+ Kf8 Be6 Bf7 Bd5 Rd2 Ba8 Rgd1 Be4 Rg8 Rf5 Rg7 Rfg5 Kg8 Rf5 Kh8 Rfg5 Bfe8 f7 Rg8 f8R Bf7 Rg7 Ne8+ Ke7 Bd5 Rff5 Bf7 R5g6 Rh1 Bc3 Rbb1 Bb2 Rbd1 Bhg2 Rh4 Bf1 Be5 Bh3 Bd4 Rc6 Qh6 R4g5 Bh5 Rgf7 Nf1 Rg3 Rgg4 Rg7 Bf7 Rcg6 Qh5 Rg2 Nf6 Kd6 Rg5 Rh2 Rg1 Rhg2 Ne8+ Ke7 Nc7 R2g4 Ng3 Kd6 Ne8+
1Nb1K3/b1RnR2b/2Q2NR1/1P1p1r1q/1b5k/NBrPR1r1/1pn2r2/1N4n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ba3 exf4 axb5 c5 b6 Nh6 b5 Ng8 Bb4 cxb4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 e4 a5 g4 f5 c4 d5 c5 a4 c6 a3 b7 a2 d3 b3 c7 h3 Qc1 h4 Qd2 h2 Qa5 h3 Qb6 f3 Bg2 f4 Bf1 f2 Ne2 f3 Qa5 Nf6 Nd4 Bb4 Bg2 f1R Qa6 f2 Nc2 Rg8 Rg1 h1N Bf3 h2 Bd1 Kh4 g5 Nfd7+ Ke6 Ng3 Kf7 h1B g6 Ne2 g7 Nc6 b8N Ncd4 e5 Be4 e6 Qg5 e7 Bh7 e8R Qh5+ Rg6 Ng1 Nca3 Nc2 Re3 Ra7 Qe6 Ra6 Qe8 Rc6 Qe6 Rc3 Qc6 Rd8 g8N Re8 Re1 Re3 Nf6 Rg3 Re3 Re1 Qd6 f1R Ke8 Rf5 Qc6 Ref1 Re7 R1f2 Re3 Bb7 c8R Ba6 Rc7 Bb7 Nd2 Bc8 Rc1 a1B Ndb1 Rc5 Ra7 Bd4 Rc7 b2 Ra7 Na1 Bb3 Nc2 Rce1 Rc4 Rc7 Rc3 Re7 Bdc5 R1e3 Ba7
2R5/1bRbPNpq/4ppqR/5P2/kn2N3/br1B1Nn1/1n1q3R/QK2Nr2 w - - 0 1 illegal: No proof kernel
b5Q1/2q1Bp1N/3b1qB1/nR1q1P1B/Np2r3/k2p1NB1/4Pnrn/1b1K2N1 w - - 0 1 legal: proof: d4 b5 b4 c5 h4 e5 a4 exd4 Ra2 g5 Rb2 gxh4 axb5 Bd6 b6 Be7 b5 Bf8 Rb4 cxb4 f4 a5 c4 d5 g4 Kd7 b7 h5 b6 Kc6 c5 Kb5 c6 h3 g5 h2 g6 h4 g7 a4 c7 a3 Qc2 h3 Qb2 Ka4 Kd2 a2 Qc3 a1Q Qg3 d3 Bg2 d4 Be4 Bf5 c8B Nc6 b8B Na5 b7 Qc7 Kd1 Rh4 Nd2 Bd6 Ndf3 Nf6 g8N Ng4 Nf6 d2 Nh7 Qb2 Bd3 Ka3 Be6 Be4 Bf5 Ra6 Bg6 Rb6 Bh5 Bf5 Ba6 Bb1 Bd3 Rb5 Bdg6 Rg5 f5 Nh6 Ba7 Re4 b8N Ng4 Na6 Nf6 Qf2 Rg2 Nc5 Ng4 Na4 Ka2 Bb8 Qbc3 Nb2 Ka3 Qh4 Q3c6 Qd8 Qd5 Qg8 Qe5 Nfg5 Qee7 N1f3 Qf6 Re1 h1Q Ng1 h2 N5f3 Rf2 Rf1 Qg2 Re1 h1B Rf1 Nh2 Re1 Qg3 Rf1 Rg2 Na4+ Ka2 Re1 Qc6 Bc7 Qd5 Bd8 Qf4 Be7 Q4e5 Bb2 Qg3 Ba1 Ka3 Ne5 Rf4 Nb6 Qc3 Nbd7 Qa2 Rf1 Kb3 Rf3 Ka3 Re3 Rg5 Nc5 Bhe4 Na4 Rg2 Nef3 Ba8 Re5 Qc7 Rb5 Qd5 Bc3 Ba2 Kc2 d1N Kd2 d3 Be5 Re4 Bg3 Bb1 Ke1 Nf2 Kd2 Nfg4 Kd1 Nf2+
Bb6/2R1B1Kp/N7/2pRpq2/Qrnb1B2/q1k2qR1/r1P1Pnb1/1B2R1r1 w - - 1 2 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 e5 Na3 exd4 Nc4 f6 Ne5 fxe5 Kd2 Kf7 Kd3 Ke6 Ke4 c5 b4 a5 g4 h3 f4 d6 g5 h2 g6 d3 b6 d2 g7 a4 b5 a3 b7 a2 b6 Qg5 Nf3 Ra6 Ne1 Nc6 b8R Na5 b7 Nc4 Rg1 h1Q+ Bg2 Nh6 Nd3 Ng4 Nb4 Ra4 Qf1 d1Q Na6 Rb4 Qf3 Qf1 Qa3 Qh3 Qa4 Qa3 Ra8 Rg8 b8R Be7 Rb6 Bb7+ Rc6 Re8 Rb1 a1B Rd8 Bd4 Be3 Qh5 g8B+ Qf7 Rd7 Ra8 Re1 Bd8 Bf3 Bc7 Rg3 Bb8 f5+ Kf6 Bh1 Nf2+ Kf3 Qe6 Rd8 d5 Rc7 Qd7 Bf7 Ke7 f6+ Kd6 Bg8 Ra7 f7 Ke6 f8B+ Kf5 Rg2 Qe6 Kg3 Ke4 Kh4 Qf5 Rg3+ Qg2 Bg5 Qgf3 Bge7 Ke3 Bg7 Kd2 Bh6+ Kc3 Bf4 Be3 Rd6 d4 Rd5 d3 Bg2 d2 Bf7 Qh3+ Kg5 d1R Kf6 Qf5+ Kg7 Bd4 Rd6 Qb3 Rg1 Qe3 Qe8 Nb2 Bc6 Qa4 Ba2 Ra8 Bb1 Nc4 Qd7 Rb2 Nb4 Ra2 Qe8 Qa3 Rd8 Ra5 Na6 Rb5 Bf3 Rb4 Qa4 Rd3 Rc1 Rd1 Rd6 Rg1 Re1 Bd5 Bg2 Bf7 Bb7 Bd5 Ba8 Bg2 Rd5 Qf3
3qbRK1/2N1n1p1/1nr1NQR1/q7/1RR3Bp/1pb3r1/PN1N2Pb/2k1r2n w - - 0 1 illegal: No proof kernel
R1r2B2/1bp1P3/1n1nbpkB/2P1R2p/r3R3/1Bq1bKbN/1R2n1b1/3B2Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 c5 exf4 Na3 Bd7 Nc4 dxc4 Ra3 Be6 Ra1 Bc8 Kf2 a5 b4 h5 g4 f6 e4 Kf7 d4 f3 b6 c3 g5 h3 b5 a4 d5 c2 g6+ Kg7 d6 a3 b7 h2 d7 a2 e5 Qe8 d8B Bd6 e6 Bf4 b6 Nh6 Be7 Ra4 Be2 Nd7 b8R Nf5 b7 Nd6 Nh3 Nb6 Re1 h1B Ra8 Bg3+ Ke3 f2 b8R Kh6 g7 f1B g8B Kg6 Bf8 Bhb7 e7 Qb5 Qd4 Be6 Bd1 Qb2 Rb1 Qb4 Rb2 a1B Bd2 c1N Rd8 Bg4 Bgb3 Be6 Rd7 Ne2 Bc1 Nb5 Rd5 Nd6 Kf3 Qa5 Qg1 Qc3+ Be3 Rg8 Bh6 Rc8 Bf8 Qd2 Beh6 Qc1 Ra2 Bd4 Rc2 Be3 Rb2 Ba6 Rd4 Bb7+ Re4 Nf4 Ree2 Qc3 Red2 Ne2 Rd5 Ra7 Rf5 Ra4 Re5 Bg2+
1nb3q1/rpn1N1k1/pn5r/B3p1P1/NPn1QN1K/4b1nR/N1R3R1/4R1b1 w - - 0 1 illegal: No proof kernel
nnr2R2/kB3pK1/1N2NP2/2Q4r/bq1Pn3/4bb1p/bpRRrRN1/6N1 w - - 0 1 legal: proof: h4 a5 b4 axb4 d3 g5 Kd2 gxh4 Bb2 e5 Bc1 d5 c4 e4 cxd5 e3+ Kc2 Bh3 Bd2 exd2 Rh2 Be6 Rh1 Bc8 e4 Kd7 g4 c5 a4 Kc7 f4 Kb6 f5 h5 d4 b3+ Kd3 b2 a5+ Ka6 g5 b5 g6 h3 g7 h4 d6 h2 d7 h3 e5 b4 Ke4+ c4 e6 b3 Ke5 Nh6 g8R Ka7 e7 c3 Kf6 c2 a6 c1R Bg2 Qa5 e8R Qb4 d8N Bb7 Qh5 d1B Nd2 b1B Ndf3 b2 Nh4 Rc2 Ne6 Re2 Rc8 Bf3 Rc2 Ba2 Rb1 Bd6 Kg7 Bf4 f6 Ng4 Rf8 Be3 Rd2 Ba4 Rf1 Rh6 Rf2 Ne5 Qf5 Nc4 Qc5+ Nb6 Rc2 Bh5 Bb7 Bf3 Ng2 Rh5 Rd2 Bfd5 Nf3 Be4 Rc1 h1N Ng1 Ng3 Rcc2 Bf3 Qc7 Nd5 Qc6 Nc7 Qc3 Kb6 a7 Ne4 Qa3 Nc6 Qc3 Rc8 a8N+ Ka7 Nb6 Na8 Qc5 Nb8
q6k/1bb1pP2/3n1b2/Bpn1P3/RQ2rnBp/BNR4B/3rR1bR/rK6 w - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 h4 gxh4 e5 f5 Nc3 d5 Ne4 fxe4 cxd5 Ra7 Nh3 Ra6 Ng1 Ra8 f4 Kf7 d4 Kg7 Kd2 c5 Kc2 h5 a4 b5 g4 b3+ Kb1 b2 g5 h3 d6 c4 d5 c3 g6 e3 d7 e2 d6 e1B f5 h4 a5 h2 a6 Nf6 a7 Qa5 d8B Bb7 d7 Ne8 Nf3 Nd6 Nd2 Na6 Qg4 Nc5 f6+ Kg8 Qb4 Bg7 Ra4 c2+ Ka2 b1R Bh3 Rb3 Ba3 Re3 Nb3 c1N+ Kb1 Ne2 Bg4 Rh6 f7+ Kh8 Bc7 Rd8 a8B Nf4 Bb6 Qa6 Ba5 Re4 Bh3 Bf6 g7+ Kh7 g8R Qa7 Rhg1 h1B R8g2 Kh8 Re2 Bg2 Rh1 Rg6 Rh2 Rg3 Qd2 Rc3 Bg4 Rc2 Qb4 Ra2 Bh3 Bc8 Bd5 Qa8 Bde6 Bb7 Beg4 Re8 d8R Rg8 Rc8 Rd8 Qc4 Bd2 Bb6 Ba5 Rc6 Rd7 Bd8 Bc7 Qb4 Bb8 Ba5 Bc7 Qe1 Nc4 Qb4 Rdd2 Bc8 Nd6 Bcg4 Nce6 Rc4 Nc5 Rc3 Ra1+
3b1k1n/2N3n1/4P1pN/N3Rn2/r2pbRR1/b1rr1BRp/N5P1/2qnKQ2 w - - 0 1 illegal: No proof kernel
2NRr2N/Nq5q/2ppn2n/1p3k1B/rPK1RPb1/r6n/2Rb3R/1r2Q2N w - - 0 1 illegal: No possible last move, all moves rejected
1b5N/1kb1RqK1/N1p3p1/Q2N2bB/P1Pn4/R4b1q/rn4p1/Rr1n1RN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 gxf5 d5 Bb2 dxe4 Bf6 h6 Bg5 hxg5 Ke2 Kd7 Ke3 Kc6 c4 b5 f4 e5 d4 g6 h4 g4 d5+ Kb7 a3 c6 d6 b3 h5 b4 h6 g3 h7 g2 d7 b2 f6 b3 f5 Ne7 f7 Bh6+ Ke2 e3 Kd3 e2 Ke4 e1B f8N Ba5 f6 Bg5 f7 Qc7 d8R Na6 Rh4 Bg4 Rh6 Bf3+ Kd3 e4+ Kd4 e3 Qe1 e2 Rh4 Nc5 Nd7 Na4 Nc3 b1Q f8R b2 Rde8 Qf5 Nd5 b1N Nb8 Nbc3 Rh3 Nd1 Na6 Nab2 Rg3 Rg8 h8N Qh3 Qd2 e1B Be2 Qcd7 Ke5 Nf5 Re7 Nd4 Qc3 Bb6 Qa5 Bb4 Rf4 Rgb8 Rf6 Bbd2 Rff7 Bgf4+ Kf6 Bbc7 Kg7 Bg5 Rf6 Bdf4 Rff7 Be4 Bg4 Bf3 Bh5 Be4 Rd3 Bd8 Rf5 Kc8 Qc5 Na4 Nac7 Rb1 Ref7 Nab2 Rg3 Bd6 Rf1 Kb7 Rgf3 Ra5 Na6 Bb8 Rg3 Ra4 Qa5 Bdc7 Re3 Qde6 Re7 Bf3 Rc3 Rb4 Rd3 Rb3 a4 Ra3 Rc3 Ra2 Ra3 Qf7+
1n3bB1/3q2rR/pp2p2P/p1BqrR2/4P2Q/1kbB1RN1/1n1r2R1/1BK2b2 w - - 0 1 illegal: No proof kernel
5NK1/2kN4/np1p4/q5b1/p1BRBn1B/rBr1p1Pb/PnN1Q3/4N1qr w - - 0 1 legal: proof: e4 c5 d4 e5 b4 f5 h4 g5 Nd2 gxh4 Rb1 Be7 Rb3 Bd6 Re3 Bf8 bxc5 exd4 e5 Qc7 Re2 Qd8 Re4 fxe4 Ke2 a5 f4 h5 c4 d3+ Ke3 b6 Kd4 h3 Kd5 h4 f5 a4 c6 d6 c5 h2 e6 h3 f6 Bb7 e7 Nd7 Ke6 Qc7 g3 Qd8 c7 Ra5 c8B Rb5 c6 Rb3 c7 Ra3 Nb3 d2 Bc4 Bh6 Qe2 d1N Na1 Bg5 Nf3 Nb2 Nc2 Nb8 Rd1 h1Q Rd4 h2 Nfe1 Qg1 Be3 Ba6 Bb7 h1R c8B R8h2 Bf4 e3 Be4 Bb5 Bcb7 Na6 Bbd5 Qa8 Bb3 Bd3 Bdc4 Rf2 Be5 Rf5 Bf4 Rc5 Be5 Nb4 Bf4 Qa5 Be5 Na6 Bf4 Bh6 Bg5 Rc6 Bh4 Bg5 Qh2 Bf1 Qe2 Qd2 Kf5 Kd7 Kg6 Bg2 Kh7 Qa5 e8N Ne7 f7 Bh3 Nf6+ Kc7 f8N Ng6 N6d7 Nf4 Kg8 Rc5 Bb5 Rc3 Bbd3 Bd8 Bdc4 Bg5
8/5Q2/rP3p1n/NN5p/R3rrrP/KpR2RNk/1Bp4N/q1Rbbnq1 w - - 0 1 legal: proof: c4 b5 d4 e5 dxe5 g5 b4 a6 f4 gxf4 e3 Qg5 Bd3 Qd8 Bc2 Ke7 Ba4 bxc4 b5 Ke8 b6 Bb7 Bc6 Bc8 Bb5 axb5 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 h4 d5 a4 h5 a5 c5 g3 b4 a6 d4 a7 b3 e6 f6 e7 c3+ Ka3 c4 Qd3+ Kg4 e4 f3 e5 f2 e6 f1R Ne2 c2 Bb2 c1Q Qh7 d3 Qf7 c3 Rh3 c2 Nbc3 d2 Nb5 d1R Rb1 Bh6 e8N Bd2 e7 Nh6 Ned6 Re8 Nc4 Nd7 Na5 Ne5 Ra1 Rg8 e8R Nf3 Re3 Qd4 Rc3 Rde1 Rb1 Qd1 Rc1 Nh2 Rf3 Qg1 Rc3 Rb8 a8R Rf4 Ra7 Ra8 Rf3 Nf1 Rc3 Kf5 g4+ Ke5 g5 Kf5 g6 Kg4 Ng3 Ree4 g7 Be1 Re7 Ra6 Ra7 Rd8 g8N Rdd4 Nh1 Bb7 Rhf3 Bc6 Ng3 Kh3 Ne7 Bd7 Nc6 Bg4 Ne5 Rb4 Rfd3 Be2 Nf3 Rg4 Nh2 Rbd4 Ra1 Qb1 Rf3 Rc4 Rc7 Rcd4 R7c4 Bd1 Rb4 Ref4 Ra4 Rde4 Rd4 Qa2+ Kb4 Qg2 Rc1 Qb1 Ka3 Qg1 Ra4 Qa1+
Q2bb2K/p2q2p1/pR3P2/1N3q1n/2q1nrP1/pRp1NN2/R1RNk3/B5r1 w - - 0 1 illegal: Other
k2N3R/p2r2N1/N1Rpq3/p3pp2/K2Pr1Rp/R1bNBpnP/3n4/2Q1n3 w - - 0 1 legal: proof: e4 g5 f4 gxf4 a4 d6 e5 Kd7 a5 Kc6 e6 Bd7 exd7 b6 b4 bxa5 b5+ Kb6 Be2 c6 Bd3 Kc7 b6+ Kb7 Bb5 cxb5 Kf1 Kc6 Ke2 Kd5 Ke1 Kc6 g4 Kb7 d4 f5 Kd2 e5 Kc3 h5 Kb3 f3 c4 b4 c5 Qe8 d8N+ Ka6 g5 Rh6 g6 Qe6+ Ka4 b3 b7 b2 c6 Qd5 g7 Nf6 g8R Nbd7 b8N+ Kb6 c7 Ne4 c8R Qe6 Na6 Ng3 Na3 b1N Nc2 Nd2 Ra3 h4 h3 Rh7 Ne1 Bh6 Rh8 Rg7 Rcc3 Rg4 Ne2 Re4 Nd3 Rc8 Rc4 Rc7 Rg1 Be3 Qf1 Bf2 Rcc3 Be1 Nef4 Rb7 Nh5 Rc7 Nf7 Kb7 Nd8+ Ka8 Ng7 Rb7 Rc6 Rc7 Kb5 Nc5 Rg2 Rd7 Qg1 Ndf1 Be3 Bc3 Qh1 Nd2 Qc1 Nh1 Rg4 Ng3 Ndb4 Nd3 Ka4 Ne1 Nd3 Qf7 Qc2 Qa2 Qc1 Qe6
BB6/PBbb3b/K1Np1Bn1/2q3R1/2rP1NR1/4bk1r/2nB1B2/1nr2n2 w - - 0 1 legal: proof: c4 g5 b4 f5 e4 a6 b5 axb5 exf5 bxc4 Qb3 c3 Qa4 Ra6 Qd1 Ra8 f4 h5 f6 h4 f5 h3 Nxh3 Rh6 Qa4 Nc6 Qf4 gxf4 Ng5 Rh8 Nh7 Nb8 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 f3 h4 c2 g4 c4 a4 b6 h5 f2 a5 c3 h6 e4 a6 e3 g5 e2 a7 e1R Bg2 f1N Rg1 Na6 Ra4 Qe7 Bb7 Nb4 Na3 Re4 d3 Rc4 Bd2 c1N Nc2 Nca2 Nd4 c2 Nc6 c1B Rg3 Bg7 Nf8 Nc2 h7 Qc5+ Ka6 b5 Ng6 b4 Nf4 b3 Ra5 b2 Rg4 b1B g6+ Kf8 d4 Ne7 f7 Be5 Rb5 Kg7 f8B+ Kf6 g7 Ng6 g8B Nc3 Bd6 Rb8 Bd5 Ra8 Bb8 Bc7 Be1 d6 Bf2 Bd7 Bf3 Be3 Bg2 Kg7 f6+ Kh6 f7 Rc8 Rh4+ Kg5 h8B Kf5 Bf6 Rh8 f8B Rh6 Rh1 Rh3 Bh6 Kg4 Rh2 Bd2 Bh1 Be3 Rg2+ Kf3 Bhg5 Na3 Ra5 Be4 Bh6 Nc2 Rb5 Nb1 Ra5 Qb4 Rag5 Qc5 R5g4 Nf8 Bhg5 Bh7 Bh6 Ng6 Rg5 Nh4 R2g4+ Ng2 Rh4 Qd5 Rg3+ Ke4 Nd8 Rb4 Nde6 Bc1 Bc8 Na1 Nd8 Bb6 Bc7 Rb8 Ne2+ Bf4 Bb7 Rc8 Bb8 Rc1 Bc6 Bc7 Ba8 Nc2 Rg6 Rc4 Rhg4 Kd3 Bhg5 Qc5 Rg8 Nh4 Bhb7 Kd2 Nc6 Kd3 Rg7 Ke4 Bh6 Kf3 R7g6 Bg3 Bd2 Bf4 R6g5 Be3 Nf4 Ng6
K2n1q2/Pr3B1k/Bb1q2np/n3B1Bb/q5rP/3RR2B/B2p2N1/1n2rN2 w - - 0 1 legal: proof: e4 a5 d4 f5 f4 c5 b4 axb4 dxc5 fxe4 f5 g6 Qd6 g5 Qf4 gxf4 Kf2 Kf7 h4 Kg7 c4 e5 a4 d5 g4 b5 c6 e3+ Kf3 b3 g5 b4 c5 e2 c7 e1R g6 b2 a5 b3 c6 h6 a6 d4 a7 d3 Rh2 Qd6 Ne2 Rh7 Ke4 f3 Bg5 f2 Nd2 b1N Ra3 b2 Rh3 Ne7 f6+ Kh8 f7 Bg4 c8B Bh5 c7 Nbc6 Bd7 Nd8 c8B Kg7 Bg2 f1Q Be8 Nec6 Re3 Na5 Bgh3 Be7 Nc4 d2 f8B+ Kg8 Bg7 Qf8 Ba6 Rb8 Bc6 Rb4 Rad3 Bf6 Bh8 Rhb7 g7 Kh7 Ng3 Na3 Ba4 b1N Be8 Be7 Bf7 Ra4 Kf5 e4 Nf1 Rab4 Nb6 Rd4 Nd5 N3c4 Nf4 Ne5 Ng2 Bf6 Ba2 Ng6 Bf7 Qc6 Ba2 Qa4 Bf7 Rdb4 Ba2 Bd4+ Bf7 Ndc6 Ke6 Bb6 Kd5 Rc4 Rg3 e3 Rf3 e2 Rfe3 Nge7+ Kd6 Rg4 Ba2 Nd8 g8B+ Kg6 Bgf7+ Kh7 Ba1 Rc1 Bh8 e1Q Be5 Qg3 Re1 Bf2 Ree3 Re1 Kc5 Rb3 Kd6 Ng6+ Kc7 Rb7+ Kc8 Rc7+ Kb8 Rb7+ Ka8 Qgf4 Rf3 Bb6 Rg3 Qf4b4 Rge3 Qbd6
2B5/4B3/1BN2BR1/2bBb2r/qb1rp3/2K1nN1n/rpP1PbR1/1bB2k1r w - - 0 1 illegal: No proof kernel
NR6/p3nkNB/1pn5/P5rb/Pb1NKb2/qNnr1N1r/5b2/B1rNR3 w - - 0 1 illegal: No proof kernel
k2BRrq1/3BrRBb/1P1B3B/b4bB1/pbnp3N/1bNK1p2/r2n1P2/8 w - - 0 1 illegal: No proof kernel
1n1R1Br1/NB3Rq1/2p1p2B/N6k/p1n5/1pr1P2q/1BB1Pb1B/b3rbK1 w - - 0 1 illegal: No proof kernel
1q3RbN/2n1B1Pk/1BrP3B/bN3qB1/K5r1/5q1p/1Nn3n1/1n1R1N2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 axb5 f5 cxd5 a4 exf5 a3 b6 a2 Ba6 Nxa6 b5 Nb8 Qg4 Nh6 Qg8 Nxg8 Kd1 Kf7 Kc2 Kg7 Kb3 e5 d4 c5 g4 h5 f4 e4 g5 h3 d6 e3 g6 e2 d5 e1N b7 h4 d7 h2 f6+ Kh6 g7 h3 d6 Qe8 d8B Qe3+ Nc3 Bd7 b6 Qe4 f7 Be7 f8B Kh7 f5 Na6 b8B Ng2 b7 Nc7 f6 Ra4 f7 Qf5 Nd1 Rg4 Nf3 Nf6 Ba7 Ne4 b8N Nc3 Nd2 Nb1 Rf1 h1Q Nc6 c4+ Ka4 Be6 Nd4 c3 Bb6 c2 Nb2 Bh4 Bf6 Be1 B8e7 Rc8 Bg5 Bd5 Rf3 Bc4 Nf1 Ba5 Bcf4 c1Q Nb5 Qc3 Rf2 Qf3 Bh6 Qa8 Bfg5 Qb8 f8N+ Kg8 Ng6 Kh7 Rf4 Bg8 Nh2 Qf1 Nh8 Qf3 Nf1 Na6 Bgf6 Rc6 Bh4 Nc7 B4g5 Nd2 Rd1 a1N Nd4 Nc2 Nb5 Qf6 Nd4 Nb1 Nb5 Bb4 Rf5 Qe6 Rf6 Qef5 Rf8 Ba5+
B3q2b/b2brp2/4Pr2/1n2PB2/2k2N2/b1B3NR/3Kb1Br/R1NN2q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 fxe5 Bg7 Na3 Bh6 Nb1 Bf8 c4 gxh4 b4 a5 Qb3 a4 Qg3 Nc6 Qc3 Na5 bxa5 dxc3 g4 Ke7 e4 Ke6 b6 h5 a6 d5 b7 d4 b8N d3 g5 a3 c5 c2 c6 a2 g6 h3 c7 h2 g7 d2+ Ke2 d1B+ Ke3 h4 a7 h3 Bd2 c1B Na3 Nh6 g8N Be2 Nb5 Bca3 Nc3 Qe8 Nd1 Bd7 Bc3 Bfc5+ Kd2 Nf5 c8B Nd6 Ne7 Rh6 Nd5 Rf6 Bg2 Nb5 Nc6 Rb8 a8B Rb7 Na5 Ba7 Nb3 Rc7 Rb1 a1B Nc1 B1b2 Ra1 Rb7 Nf3 Rc7 Nh4 Rb7 Rf1 h1Q Nf5 h2 Ng3 Qg1 Rf3 h1R Rd3 Rh2 Nf4+ Ke7 e6 Rc7 Ba6 Rb7 Re3 Kd6 Rf3 Kc5 Re3 Nc7 Bd3 Nb5 Bb1 Kc4 Rd3 Bf8 e5 Bba3 Re3 Bg7 Bf5 Bh8 Nf1 Bc6 Rh3 Re7 Ng3 Bd7
4n1KN/2bk4/nr2R1nn/RP1B1n2/1R3BP1/2rr2n1/2B2q1N/2R1rb1B w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 Qd2 exf4 axb5 Qc7 b6 Qd8 b5 Bb7 Qc3 Bc8 Qb4 axb4 Kf2 d5 Kf3 h5 e4 f5 c4 h4 b7 b3 g3 d3 e5 b2 e6 d4 g6 h3 g7 h2 e7 d2 c5 d1R c6 d3 c7 d2 Ra5 Re1 Ne2 d1R Nbc3 b1N Ra1 Qd4 Na2 Ra6 Bg2 Rb6 Bd2 Na3 Rg1 h1N Nb4 Nf2 Nd3 Kd7 e8R Ne4 Re6 Nh6 g8B Na6 b8R Bd6 Bh1 Nf7 Rb1 Rh3 Rb3 Nf6 Ra8 Ne8 Nf2 Nc4 Ng4 Be5 Be3 Rd3 Rb4 Bd6 Nh2 Nce5+ Kg2 Ng6 g4 f3+ Kf2 Rg3 Nf4 Bb7 Rf1 Bd5 Ra7 Bc4 c8B+ Kd8 Bb7 Bc7 Bd5 Kd7 Bh7 Rc3 Rg1 Bf1 Ra8 Nc5 Ra5 Na6 Ng2 f4 Nh4 Ne7 Ng6 Qf6 Nh8 Ng6 Rg2 Qh4 Kg1 Rh3 Rc2 Rd3 Rc1 Rc3 Bg2 f2+ Kh1 f3 Bf4 Ne7 Bf5 Ng6 Bc2 Bc4+ Bf1 Re4 Bfd3 f1N Be2 f2 Bf3 Re1 Kg2 Be2 Bfe4 Rhd3 Bf3 Nd2 Bfe4 f1N Bf3 Qf2+ Kh3 Ne3 Bh1 Nf8 Bg3 Bf1+ Kh4 Ng6+ Kh5 Nf5 Bf4 N7d6 Kg5 N2e4+ Kh5 Neg3+ Kg5 Nfg7 Kh6 N7f5+ Kh7 Nf7 Kg8 N7h6+
nk2B2R/2r2N1r/bbPBr3/1r2q3/P1NpN3/5Kr1/r3r1B1/3RN1Bn w - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 h5 exf5 c5 b4 axb4 fxg5 cxd4 g6 Rh7 g5 Rh8 Qg4 hxg4 Ke2 d5 c4 Kd7 h4 Kc7 g7 e5 c5 b5 c6 g3 h5 d3+ Ke3 d2 h6 d1R g6 b3 h7 b4 a3 e4 f6 b2 f7 g2 Nh3 g1R Ng5 b3 Rh4 d4+ Kf2 e3+ Kf3 e2 Rh5 e1R Bd3 Rg3+ Kf4 Qe8 Bf1 Ba6 Bg2 Nf6 g8B Bc5 f8B Re6 g7 Rde1 Nd2 b1R Ngf3 b2 Nc4 R1e2 Bf7 Nbd7 g8N Ng4 Nf6 Kb8 Be3 Nb6 Bg1 Nf2 Ne4 Nh1 Ne1 Ra7 a4 Rc7 Bg6 Na8 Bd6 Bb6 Rh4 Qe7 Be8 Rd1 Rh3 Rdd2 Rd1 b1R Rh4 Ra2 Rh2 Rgg6 Kf3 Rb5 Rh5 Rg7 Rh2 Rhg8 h8N Rh7 Nf7 Qg5 Rh5 Qe5 Rh3 Rhg7 Rh8 Rh7 Ra1 Rg5 Rd1 Rg3+
n1R1B3/Nb2nb2/1RRK4/Br3q2/3Bq3/2pP3P/2qr2kN/B1Rr2nn w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 Qa4 h5 Ra3 f5 Ra1 f4 Qa3 f2+ Kd1 Bd6 Qf3 Be5 Qe4 f3 Qg4 Bf4 gxf4 hxg4 Kc2 Kd7 Kc3 Kd6 Kb4 Kd5 h3 Ke4 Kc5 a5 b4 g5 e3 a4 b6 g3 b5 g2 b7 g4 b6 a3 f5 c3 f6 g3 f7 a2 f8R c2 Ne2 g1N Nd4 g2 Rh2 Ne2 Na3 g1N Bb2 Ne7 Rf6 Qe8 Nab5 Ra5 Rc6 Ng3 Rc1 Nh1 Ba1 Rf8 Bc4 f1B Bf7 f2 Nf3 Bc4 Bh5 f1Q d3+ Kf5 e4+ Kf4 e5 Kg3 Rf2 Bf7 e6 Rg8 Bd4 a1R Nh2 R5a2 Rf6 Kg2 Na7 Qf5+ Kb4 Nd7 b8B Rh8 b7 Nb6 Bg6 Na8 Rb6 c6 Bbe5 Rh4 Kc5 Rh5 b8B Bb7 Kd6 c5 Bc7 c4 Rc6 Rb1 Ba5 Rg5 Ba1 c3 Rb6 Qa4 Bd4 Rb5 Bh5 Rg4 Rh6 Rf4 Rf6 Rf1 Bg6 Rd1 Bh5 Nd5 e7 Qc4 e8R Ne7 Rc8 Qa4 Rb1 c1Q Re6 Qcc2 Rc1 Bg8 Be8 Bf7 Re5 Qb4+ Rec5 Qc4 R5c6 Rab2 Bf6 Qce4 Bg7 Qb3 Bf6 Rbd2 Bd4 Qc2
1B6/1r1p2q1/R2B1b1P/RB3qn1/B1bNk3/K1n4R/1Pb5/1R1qbNrq w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 h5 exf5 gxf4 g5 Nc6 Qe2 Nb8 Qg4 hxg4 Kd2 Kf7 c4 a5 Kc2 e5 Kb3 d3 h4 f3 b6 g3 h5 e4 c5 d2 b7 d1B+ Ka3 a4 h6 f2 g6+ Kf6 g7 Ke5 f6 e3 f7 g2 Nh3 g1Q Bd3 f1Q Be2 Qa5 Bg4 e2 Bf4+ Ke4 Rh2 e1B Bd6 Nc6 b8B Nce7 c6 Qaf5 c7 Bc2 Nf4 Nd5 Bd1 Ngf6 g8B Nc3 Ne2 Ba6 c8R Qg7 Rh3 Nh7 Nd4 Qh1 Rd8 Be7 f8R Ra7 Bc4 Rb7 Bb5 Ng5 Rf6 Rg8 Rg6 Bf6 Nd2+ Kd5 Nf1 Ke4 Kb4 a3 Rb1 a2 Ka3 Bd3 Bda4 Bc2 Rc8 a1Q+ Kb4 Qa2 Rc5 Qae6 Ka3 Qed5 Be2 Bc4 Ra5 Ba2 Beb5 Bc4 Ne6 Qd1 Nd4 Bd8 Bb4 Be7 Rga6 Bf6 B4d6 Nf7 Nc6 Qh8 Rh5 Rg1 Rh3 Qg7 Nd4 Ng5
N2n4/4NR1r/NBppP2B/bBq2R1n/N2k2bb/B2r1rP1/q3K2n/8 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 hxg5 b5 axb5 Bc5 d4 Bf8 c4 Bd6 c5 Be7 d5 Bf8 d6 cxd6 c6 Qe7 c7 Qf6 Qc2 Qd8 Qc6 dxc6 b4 Kd7 e4 Ke6 g6 Ke5 g7 f5 g3 a5 b6 h5 b5 h4 b7 h3 b6 f3 Bc4 h2 Ba6 f2+ Kd2 f1N+ Ke1 f4 Nh3 f3 Nf4 a4 Bb5 a3 Nd3+ Kd4 e5 a2 Nb4 f2+ Ke2 Nd7 b8B Nc5 b7 Ra3 Na6 Rd3 Ba7 Be7 b8B Rh7 Bh6 Nf6 g8N Nh5 Nc3 Bh4 Na4 Qg5 Bb6 Bd7 Re1 a1B c8N Bc3 B8a7 Ba5 Nge7 Be6 Rg1 h1Q Rg2 Bf5 e6 Nh2 Rf1 Bh3 Rgg1 Qhd5 Rh1 Ke4 Rhg1 Nb7 Bc5 Qc1 Ba3 Nd8 Ncb6 Kd4 Na8+ Qcc5 Bb6 Bf5 Ra1 f1R Rh1 Rf4 Raf1 Rff3 Rf2 Rc3 Rhf1 Rfd3 Rf3 Bh3 Rf7 Qa2+ Ke1 Bg4 R1f5 Rf3 Kd1 Qa1+ Kd2 Rcd3+ Ke2 Qa2+
kr6/2nRpK1b/6N1/2P1N1BB/q2B1bBP/4Nnpr/1q1NbnRq/8 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 h5 exf5 gxf4 g5 Nc6 Qe2 Nb8 Qg4 hxg4 Kd2 a5 Kd3 d5 c4 Kd7 b4 Kc7 h4 Kb7 f6 g3 c5 a4 f7 f3 g6 a3 g7 f2 b6 a2 b5 Qe8 Nh3 Nf6 g8B Nbd7 Nf4 Bh6 Ng2 Bf4 Be2 f1Q f8N Qf2 Ne3 Qh2 Be6 Ra4 Rd1 Ka8 Ng6 Ne5+ Kd2 d3 Kc3 d2 B6g4 Ra5 Kd4 Bf5 Bh5 Qd7 Beg4 Rb8 Bb2 Ne8 b7+ Ka7 Rg1 d1N Rg2 Nc7 Nd2 Nf2 Rd1 a1Q Bc3 Ra2 Bb2 Re8 b8N Ka8 Nc6 Rb8 Bc3 Qb2 b6 Nf7 Nce5 Ng5 Nf8 Bh7 b7+ Ka7 Nfg6 Qa4+ N3c4 Rg8 b8B+ Ka8 Ba7 Rd8 Bb6 Ra1 Ba5 Rb8 Bb4 Nfe4 Ne3 Nf3+ Kd3 d4 Kc4 d3 Bd4 Ne8 Kd5 Nf2 Ke6 Nc7+ Kf7 Ra2 Ne4 d2 Ba3 Qb7 Bc1 Qb2 Rh1 d1B Nd2 Be2 Rd1 Ra1 Ndc4 Rb3 Nf1 Rb8 Bc3 Qg1 Rd7 Bg5 Bd4 Qh1 Bf4 Qh3 Nfe3 Rh1 Nd2 Bh6 Bg5 Rh2 Bf6 Bf4 Rg1 Qg2 Bg5 Qh1 Rg2 Rh3 Nd5 Qg1 Ne3 Qh2
bbn1R2r/R2BRB2/1P1q4/1BN4K/1nn5/1B1p3n/4Ppk1/qbR1r1N1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 a4 c5 axb5 h6 d4 cxd4 Bf4 Ba3 Qd3 Be7 Qf5 gxf4 g5 Bd6 g6 Bf8 Qg5 hxg5 Kf2 Ke7 Kf3 Ke6 Kg4 d5 b4 a5 c4 f5+ Kf3 g4+ Kg2 a4 h4 a3 c5 a2 g7 f3+ Kg3 d3 h5 f2 h6 d2 b6 d1B b5 d4 b7 d3 b6 Ne7 Kh4 g3 c6 g2 c7 f4 g8B+ Kf5 e6 f3 h7 Kf4 Nc3 Nbc6 b8R Bb7 c8B Bc2 Rc1 a1Q Bd7 Nb4 Ne4 Bb1 Bf7 Nc8+ Kh5 Bd6 Nc5 Kg3 e7 Bd5 Rb7 Bb8 Ba4 Qd6 e8B Ra5 Ra7 Ba8 Bab3 Ra6 Nh3 g1N Bb5 Ra3 Bg2 f1N Bd7 f2 Bgc6 Ra5 Bb5 Ne3 Rh2 Nc4 Rh1 Nf3 Ng1 Kg2 Rh4 Ra2 Re4 Ng5 Re5 Nh3 Re7 Rf8 h8R Rd2 Ne4 Rd1 Nc5 Rd8 Rhe8 Rf1 Re5 Re1 R8e7 Rf8 Re8 Rg8 R5e7 Rh8+
rr2b3/P1b5/qNpBPnr1/1Rb3N1/3qNBkp/2R5/1n3B2/K3rBN1 w - - 0 1 illegal: No possible last move
1b2BN2/R1R2Br1/1BR5/2rr1R2/1P1Pqp2/q1rnnr1K/pBk2q2/1N6 w - - 0 1 illegal: No possible last move
3bNb2/B2R2Pb/K5qb/N2n2Pp/2n1B1bR/Rb6/bk1pB1B1/r4R2 w - - 0 1 legal: proof: e4 c5 h4 a5 b4 axb4 d4 g5 hxg5 cxd4 Be3 f5 Rh2 b5 Bc1 d5 Rh4 d3 Rh1 d4 Qe2 Ra7 Qe3 Rd7 Qf3 Rd5 exd5 Nd7 Qe2 Nb8 Qe4 fxe4 Kd2 Kf7 a4 h5 c4 e5 f4 b3 g4 b4 f5 b2 a5 b3 c5 Qd7 c6 Qc7 d6 Nd7 g6+ Kf6 g7 Nb6 a6 Ne7 a7 Ned5 a8B Qf7 c7 Qg6 Nc3 b1B d7 b2 d8R Ba2 Nf3 b1B Rd7 Rh6 Bg2 e3+ Ke1 e2 Kd2 e4 Ne5 Rh7 Nc6 Rh8 Na5 Ke5 f6 e1B+ Kd1 d2 Ke2 e3 f7 Be4 Rh4 Nc4 Nb5 Bf5 Be4 d1B+ Kd3 e2 Be3 Bd2 Nd6 e1B Ne8 Bdb3 Bg1 Bh6 g5 Beb4 Be3 Bfe7 f8R Bd8 Rff7 Bg4 Rff1 Bf8 Bc6 Bb7 c8B Ba8 Ba6 Bb7 Rdf7 Bbc8 Ra7 Bce6 Rd7 Bg8 Rac1 Bh7 Rc3 Ba4 Ra3 B4b3 Ba8 Nb2+ Kd2 d3 Ba7 Nc4+ Kc1 Ncb6 Kb2 d2 Be2 Kd4 Bg2 Kc5 Be4 Kb4 Bc6 Bc4 Kc2 Bcb3+ Kd3 Nc4 Bf5 Nc7 Bg2 Nd5 Bfe4 Ba4 Rc3 B4b3 Kd4 Ka3 Rcf3 Ne7 Kc5 Kb2 Kb5 Nd5 Rc3 Bd6 Ka6 Rf8 Rd1 Rf1 Re3 Rg1 Rf1 Bf8+ Rf6 Ba4 Rg3 Ra1 Ra3 Be6 Rf5 B4b3 Rf1 Bg4+
1K4b1/n1b2N1R/pB3P2/R6P/2p2RrR/1rrN3n/B1r1b1r1/k2Br1B1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 Kf2 h5 Qc2 f5 Ke1 f4 Qf5 Qd7 Qg5 Qf5 gxf5 Bb4 Qg2 Bf8 Qg4 hxg4 Kf2 Kf7 e4 Kf6 h4 Ke5 b4 Kd4 b6 g5 b7 c5 h5 c3 b5 a6 e5 c2 f6 Nc6 b8R Rh6 e6 Be7 b6 Rh7 b7 Na7 Na3 Nh6 Bc4 Bd8 e7 Be6 e8B Rc7 Nh3 Bg8 Ba2 Nf7 Nc4 Rc8 d3 Kc3 Be3 c1R Ne5 Kb2 d4 Rc3 d5 Rc6 Rc8 Rb8 d6 Rc7 d7 g3+ Kg1 g4 Nf2 g2 Kh2 Rc6 Rc7 Ng5 Nf7 g1R Bd4 Nh3 Nd3+ Ka3 Be3 f2 Bd4 f1B Bf2 Rg3 Bg1 Be2 Rf1 Rc8 b8R f3 Rb5 f2 Rcb7 Rc4 Ra5+ Ra4 Rc7 Rf3 Kg2 g3 Rh2 Rb8 Rh1 Rb3 Rh2 Be7 d8B Re3 Rb7 Rf3 Bb6 Bd8 Bd7 Rc8 Bg4 Rc7 Rc1 f1R Rc4 Re1 Rf4 Rc6 Nb2 Rfc3 Nd3 Bf1+ Kf3 g2 Kg3 Be2 Bf3 Rc8 Kg4 Rc7 Kf5 Rc8 Ke5 Rc7 Bd4 g1R Kd6 Rg2 Bg1 Rc2 Nb4 Kb2 Nd3+ Ka1 Bg4 Bf1 Bd1 Be2 Rh1 Rac4 Rh2 R4c3 Rh1 c4 Rh2 Ng5 Rhh4 Re7 Rd7 Nh3 Rb7 Re4 Kd7 Nc6 Kc8 Na7+ Kb8 Rd4 Nh8 Re4 Rh7 Rd4 Nf7 Re4 Rf2 Reg4 Rf4 Bc7+
8/3nN3/2NRr1RR/nkp1p1r1/2q1Nq1P/4RK1b/1b2PB1p/2BN1q1n w - - 0 1 illegal: No possible last move, all moves rejected
1N4r1/BRK2bq1/N1R3nn/2rBbk2/B3q3/pp2R2P/p1n1B1PR/5n2 w - - 0 1 legal: proof: d4 e5 dxe5 g5 a4 h5 f4 gxf4 b4 b5 Ra3 c6 Rh3 h4 Qd4 bxa4 b5 c5 Qb4 cxb4 Rxh4 Bd6 Rh7 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 c4 f6 b6 d6 b7 f3 c5 f2 c6 b3 c7 Be7 h3 Qf8 Rh6 Nd7 b8R Qg7 Rh2 Nf8 Nf3 d5+ Kd4 Ra6 e4 Bd6 Be2 f1Q Na3 Rc6 Be3 Qb1 Rb7 Qc2 Rg6 Nh6 Nb5 Rg8 Rg3 Bd7 c8R f5 Bg1 f4 Nc7+ Kf7 Na6 Ke6 Be3 Ng6 Bf2 Rc3 Rc4 Bb8 Kc5 d4 Kb6 d3 Bg1 d2 Nd4+ Kf7 e6+ Kf6 e7 d1N e8B f3 Bf7 f2 Rcc7 f1N Nc6 Be8 e5+ Kf5 e6 Qe4 e7 Nde3 Bd5 Bf7 e8B Nc2 Rc8 Bd6 Ncb8 Be5 Bc5 Rc4 Kc6 Rc3 Kd7 Rc4 Ba7 Rc5 Rd3 a3 Rcc7 a4 Re3 a2 Kc8 a3 Kd8 Nf8 Ba4 Ba1 Rc6 Ng6+ Kc7 Be5+
1kbK1r1N/p2Rp3/p5R1/1np2PBp/1n3R1B/2B1nn1B/1r2P2R/q6N w - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 Nf6 g4 fxg4 a5 Ng8 a6 bxa6 h4 g5 f4 Bg7 Qb3 Bf6 Qf3 gxf3 Kd1 g4 Ke1 Bg5 hxg5 Be6 Rh3 Bf5 Rh1 Bc8 Kf2 Kd7 Ke3 h5 Kd4 c5+ Ke5 Kc7 d4 g3 b4 g2 g6 f2 f5 Rh6 b5 Bd7 g7 Rc6 b6+ Kc8 b7+ Kc7 d6+ Kb6 d5 Be6 d7 Kc7 d6+ Kb6 Rh2 Qc8 d8B+ Qc7 Bg5 Ba2 Nd2 Bb1 Ke6 Nh6 g8R Be4 Rg6 Ng8 Ndf3 Nh6 Ne5 Bf3 Ra4 Nf7 Nh3 g1N Rf4 Bg2 Bh4 Nf3 Bg5 Bh1 Bg2 f1N Nf2 Ne3 Bh3 Nd7 b8B Kb7 Bh4 Rb6 Bg5 Bg2 Nh1 Rb2 Bh4 Nf6 d7 Nd6 Nf7 Qa5 Nh8 Qc3 Ba5 Nb5 d8R Nfd5 Kd7 Nb4 Ke8 Qa3 Rd7+ Kc8 Be5 Qa1 Bef6 Kb8 Bhg5 Nd2 Bc3 Bb7 Kd8 Nf3 Be1 Bc8 Beh4 Na2 Bae1 Nb4 Bc3 Bb7 Ke8 Kc8 Rdd4 Kc7+ Kf7 Rc8 Rd1 Kb8 Rd7 Rc6 Ke8 Rf6 Kd8 Bc8 Bd4 Rf7 Bc3 Rf8+
N2R1NR1/BnK4b/q4brq/R1R5/2p1rb1P/3BB3/q1P1B2q/nq3q1k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 g5 e4 gxf4 g5 dxe4 Qg4 hxg4 Kf2 Kd7 b4 Ke6 h4 Kf5 d4 a5 b6 c5 b5 e5 b7 a4 g6 g3+ Ke2 Kg4 g7 f5 d5 g2 b6 Kg3 d6 e3 Kd3 e2 Kc4 e1Q Kb5 f3 d7 f2 Bc4 a3 Bf7 e4 Bd5 e3 Bd2 e2 Be4 a2 Bd3 f4 Bf5 f3 Nc3 Qf6 d8R Ra6 Rd5 Bd6 Rd4 Qb1+ Rb4 e1B Bd7 Nc6 b8R Nd8 b7 Nh6 g8B Bf4 Nd5 Nf5 Ne7 Qh6 Nh3 g1Q Bh7 Kg2 Nd5 Qh2 Nc7 Re8 Be3 Bc3 Na8 Bg7 Ng5 Nd4+ Kc4 Rc6 Kd5 Nb3 Bg4 Bf5 Rd1 Ree6 Rd2 Kh1 Rb5 Bc3 Rc8 Re8 b8B Nb7 Ba7 Bd4 Bg8 Re4 Ne6 Bh7 Bf7 Bg7 Rg8 Bge5 Nf8 Rg6 Be8 Bf6 Kc6 f1Q Rf2 Qd3 Rd2 f2 Be2 Qc4 Rd8 f1Q Bf7 Qa4 Bfc4 Qa3 Bcd3 c4 Re5 Qa6+ Kc7 Qbe1 Rb1 a1Q Rb2 Q1a3 Ra2 Qb1 Ra1 Qab2 Ra4 Na1 Ra5 Nd6 Rf5 Q2a2 Rfc5 Nb7+
1rBR4/BB2N3/r1nn1bK1/b4p2/2nbbrN1/P1R2Pn1/2qk2rB/3N3N w - - 0 1 legal: proof: d4 a5 c4 e5 g4 d5 b4 axb4 cxd5 h5 d6 hxg4 d5 Qf6 Qd2 Qd8 Qd4 exd4 Kd2 Kd7 Kd3 b5 Ke4 f5+ Kf4 c5 h4 g5+ Ke5 b3 e4 g3 a3 d3 f3 b4 h5 g4 h6 b2 h7 d2 Kf4 d1R e5 b3 Ne2 c4 Ra2 g2 Rh2 g1B Ng3 c3 Rg2 c2 Bc4 Bg7 Be2 Ne7 Kg5 Qc7 Bd3 Rd2 Ra1 Bb6 Nc3 b1N Ba6 b2 Nh1 g3 Nd1 Ba5 Re2 Rd4 Rd2 Rg8 h8N g2 Nf7 g1B Nh6 Bf6+ Kh5 Rg2 Ng4 Bb7 e6+ Ke8 Kh6 Nc8 e7 Kf7 d7 Rf4 d6 Ke6 e8B Be4 Kg6 Qc3 Rd4 Nc6 Be3 Nd2 Rc1 b1R Rd5 Rbb8 Bb7 Ra6 Ba7 Nc4 Rd2 Qd3 d8B Kd5 Bdb6 Bh4 Bd7 Bf6 Bd4 Qc3 Bf2+ Qd3 Bg3 Bc5 Bh2 Kd4 Rb1 c1N Rb3 Ne2 Rc3 Ng3 Be6 Nb4 d7 Bcb6 d8N Bc5 Nf7 Bcb6 Nfh6 Nc6 Ng8 Bc5 Rb2 Bcb6 Rb5 Qc2 Re5 Bc5 Bd7 Bcb6 Re8 N8d6 Ne7 Bc5 Rd8 Bcb6 Re3 Bc5 Bdc8 Bcb6 Re2 Kd3 Re3+ Kd2 Rc3 Bbd4
2kbBn1r/qr5q/2N3np/P3bN1B/2rNR1pR/B5P1/2N2Kb1/4rn1B w - - 0 1 illegal: No proof kernel
r2B1N1q/3q4/1R1p1bNN/2bk2Kp/r2b1nRr/N2P3b/1R5P/1R1Bq1n1 w - - 0 2 legal: proof: e4 b5 a4 g5 f4 f5 Qg4 fxe4 f5 c6 Qf4 gxf4 axb5 c5 b4 cxb4 Kf2 Kf7 g4 a5 c4 e5 g5 a4 d3 f3 Ke3 b3 b6 f2 c5 b2 c6 a3 c7 a2 b7 Nc6 b8N Nd4 f6 Ke6 f7 Bc5 f8N+ Kd5 g6 d6 g7 Ne2+ Kd2 Nf6 g8R Qd7 Nf3 Ng1 Na3 b1Q Nd4 Nh5 Ke3 Qb2 Rg7 Nf4 Be2 f1R Rb1 a1B Nc6 h5 Bd1 Ra4 Bd2 Qb8 Rb6 Re1+ Kf2 e3+ Kg3 e2 Kh4 e4 Nf5 e3 Rg4 Bad4 Ba5 Rf1 Rb2 e1B+ Kg5 e2 Ne5 Bec3 Nh6 e1Q Neg6 Rf3 Bb6 Rh3 Ba5 Rh4 Rb6 Ba6 c8R Rg8 Rcc6 Bc8 Rb2 Rh8 Bd8 Qa8 Ne6 Rf8 Rcb6 Bf6+ Kf5 B3d4 Be7 Qdb7 Be2 Qd1 Rg3 Ngh3 Rg5 Qd2 Rhb1 Ng1 Bd1 Qe1 Rgg2 Bd7 Rg3 Rb8 Rgg2 Qc8 Rg5 Qh8 Bd8 Qa7 Rg3 Ra8 Rgg2 Bg7 Kg5 Bc8 Nef8 Bh3 Rg3 Qd7 Rg4 Bgf6+
2n1Rb1B/1K1k1NBb/P1pr1b1R/2B3b1/2P2R2/1p1rR2q/b2n1br1/N4B2 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Qd4 g5 Qc3 g4 Qg3 hxg3 Kd2 d5 Ke3 g5 Kd4 b5 e4 g2 a4 c6 h4 b3 f4 g3 c4 b4 a5 g4 a6 b2 h5 b3 e6 Qd7 f5 Rh6 f6 Ne7 Kc5 d4 Kb6 d3 e5 d2 Ra2 d1R Nf3 g1B+ Be3 g2 Nd4 g3 Nf5 Rd3 Na3 b1B Bc5 Bd4 Nc2 g1B Na1 g2 Rf2 Ba2 Rf4 Bgf2 f7+ Kd8 Rh2 g1B Nd6 Bh4 Rh3 Bgf2 Rh2 Rf6 h6 Bg5 h7 Rh6 Rh1 Rh2 h8B Rg2 Rf3 Ng8 Rh7 Nf6 Rf4 Ne4 Rh5 Nd2 Rh6 Qe8 e7+ Kd7 Rh7 Ra7 Rh5 Rc7 Rh6 Qd8 e8R Qf6 Rhh4 Qf5 Rh6 Qh3 Re7+ Kd8 e6 Bdf6 Nb5 Rcd7 Nd6 Bb7 Ka7 Bc8+ Ka8 Kc7 Re8 Rd8 e7 Bf5 Ka7 Kd7 Kb7 B8g7 f8B Bh7 Bd4 Ke6 Nf7 Nd7 Bc5 Nb6 Rh5 B7h6 Bfg7 Nc8 Rhh4 Qh2 Rh3 R8d6 Re3+ Kd7 Rf8 Bg6 e8R Qh3 R8e6 Bh7 Rfe8 Be7 Rg6 Bf8 Rge6 Bge7 Ref6 Bg5 Rh6 Bef6
5R1r/2r2rnk/4q2N/KbB1p2B/1pr1RN2/1bN1B2n/2NpP1P1/b2n1B2 w - - 0 1 illegal: No proof kernel
2b1B3/2q5/1Rp1b1b1/3k1bp1/4rR1B/1Np1nN1K/2PnRBPB/nR2nr2 w - - 1 2 illegal: No proof kernel
1KRb1B2/n1Np1Bn1/N1bNn1Bk/2PP3p/2Bnrpnp/1NR5/8/r1q5 w - - 0 1 legal: proof: b4 e5 f4 exf4 h4 b5 a4 c5 c3 g5 Qb3 gxh4 axb5 Ba6 b6 Bb7 b5 Bc8 Qb4 cxb4 Kf2 f5 Kf3 Kf7 d4 Kg7 e4 h5 g4 a5 e5 b3 c4 a4 b7 b2 b6 a3 d5 a2 c5 Rh7 g5 Rh6 e6 Qc7 g6 Na6 b8N Qb7 e7 Ra7 e8B Be7 Bc4 Nf6 Rh3 Bd8 Ne2 Ng4 Nd4 Nc7 Nb3 Ne6 N1d2 b1N Ne4 Na3 Na6 Nb5 Nc7 Ra6 Rb1 a1N Nd6 Nc2 Bf7 Qc6 b7 Ra1 b8N Na7 Nba6 Bb7 Be3 Rh8 Bd4+ Kh6 g7 Qb5 g8B Bc6 Bh7 Re8 Bhg6 Qa5 Bf6 Qe1 Be7 Qc1 Bf8+ Kg5 Ke2 f3+ Kd3 f4 Ke4 f2 Rc3 f1N Rb2 Nfe3 Rb1 Nf6+ Ke5 Nf5 Rb2 Re7 Ra2 Ncd4 Ra4 Ne8 Rb4 Nf6 Rb8 Re8 Rc8 Ng4+ Ke4 Nfg7 Nb7 Nh6 Ke5 Ne2 Kd6 N2d4 Na8 Ng4 N3a5 Bf6 Nb3 Nd8 Kc7 Re4 Kb8 N8e6 Nd6 Kh6 N8c7 Bd8
4q2Q/3rn1qR/1B1Q1K1Q/PN3nPp/7r/1k2N3/bN1rrN2/1rb3N1 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 f5 exf5 g5 hxg5 b3 c4 Bg7 cxd5 Bxa1 a5 Bg7 Bc4 Bf8 Bb5+ Kf7 Be8+ Kxe8 Ke2 Kf7 Kd3 b5 Ke4 e5 g4 c5 f4 b4 d4 h6 g6+ Kf6 d6 c4 g7 c3 d5 b2 d7 c2 d6 b3 g5+ Kf7 f6 Ke6 f7 Ra6 Nc3 b1R Be3 c1R Nd5 b2 Bb6 Qe8 d8Q Nc6 d7 Ba3 f8Q Ra7 Ne3 Nge7 g8N Rc2 Nf6 Nf5 Nfg4 Nce7 Nf2 Rd2 Qh5 Rh7 Qh8 Ba6 Qh2 Bc4 Qc7 Ba2 Qd6+ Kf7 Qh3 Qg8 Qh4 Re1 Rh3 b1R d8N+ Ke8 Nf7 Ree2 Qh5 Bc1 Rh4 Rd7 Rh1 Nd4 f5 Kf8 f6 Nf5 Kf3 e4+ Kg4 Ke8 Ne5+ Kf8 Qh2 Ke8 N5c4 Kf7 Qb8 Ke6 f7 R2d6 Nb2 Rdd2 Ng2 Kd5 f8N e3 Ne6 Bc4 Nd4 Ba2 Nbd1 Kc4 Nb2+ Kb4 Nb5 Kb3 Kf4 R7d4+ Ke5 Rh4 Kf6 Rg7 Qhd6 h5 Qf8 Nc6 Rh3 Rd7 Rf3 Nce7 Qfh6 Rc2 Nfd3 Red2 Rf4 e2 Nf2 e1Q Rc4 Qe4 Ne3 Re2 Rc8 Rcd2 Rf8 Qa8 Rf7 Qae8 Rh7 Qg7+
1b2k1N1/4r2P/bNn2Q2/1Q3n2/qQNn4/1BRr3N/1NPnrKnr/6r1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 f5 Qb6 Qe2 Qc7 Qd1 Qd8 g4 h6 b4 Qc7 Bf4 Qd8 Ra3 Na6 Rg3 gxf4 g5 Nb8 g6 Rh7 Rg2 Rh8 Rg5 hxg5 h4 Nh6 h5 d5 g7 a5 g8Q e5 b6 Ra7 b7 g4 b5 a4 b6 e4 Qd3 e3 Ne2 f3 Qd2 d3 Nbc3 g3 Nd1 a3 Rh3 g2 Nb2 g1R Qg5 d4 Nf4 Qd7 Qb4 a2 Qh4 Bd6 f7+ Kf8 Qf2 a1N Qe2 Ke7 f8N Qa4 f6+ Ke8 Nd7 Nf5 h6 Nc6 b8N Nb3 Ne5 Re7 Nbd7 Ba6 Rg3 Rg2 b7 Rf2 b8N d2+ Kd1 Rg2 Qeb5 f2 Ke2 d1R Nb6 d3+ Kf3 e2 N8d7 d2 f7+ Kd8 Rh3 Bb8 Nf6 e1N+ Ke2 Rb1 Rc3 d1R Ng8 Rg1 Bg2 f1N Bd5 Nbd4+ Kf2 Rd3 Bb3 Ng2 Nec4 Rbe1 f8Q+ Re8 Nc8 Nd2 Qf6+ R8e7 N8b6 Rh7 Qg7 Ke8 Qg5 Rhg7 Qf6 Rg5 h7 Rh5 Nc8 Rhh3 N8b6 Rh2 Nh3 R1e2+
b1r1Q2r/R2n1R2/3RP1nq/bbP4k/R1BRr1N1/5qbK/Q7/1n2n2Q w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 a4 c5 d4 cxd4 axb5 Nc6 Nc3 Nb8 Bf4 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Qb1 Rh3 Qd1 Rh8 Kf2 a5 Kg2 f5 c4 Kf7 h4 Kg6 e4 d5 b4 d3 c5 d2 e6 g3 b6 d4 b5 d3 b7 a4 e7 f3+ Kh3 a3 e8R f4+ Re6+ Qf6 b6 g2 e5 a2 Rh2 f2 Qc1 d1N Be2 f1R Qb2 d2 Nf3 Re1 Bc4 Nd7 b8Q Nc3 b7 d1Q Rd6 Ne7 e6 Nb1 Ne5+ Kh5 g6 f3 g7 f2 g8R f1B Rg7 Re4 Rf7 Qh6 Ng4 Ng6 Qb3 g1B+ Rg2 Bd3 Rd2 Bf2 Qa4 Be2 R2d4 Be1 Qba7 Bd3 b8R Ba5 Rb4 Bb7 Qc6 Rb8 Ra4 Ba8 Qc8 Bg7 Qe8 Be5 Qa6 Bg3 Qa7 Ngf8 Qa6 Qf3 Qa7 Kg6 h5+ Kg5 Qa6 Rc8 Qa7 Ng6 Qa6 Qg7 h6 Kh5 h7 Qh6 Qa7 Rf8 h8Q Be2 Qf6 Rh8 Qf4 Bd3 Qc1 Be2 Qh1 Bd3 Bb3 Bb5 Bc4 Nc3 Rb1 a1N Rf1 Nc2 Rfa1 Nb1 R1a3 Bd8 Qa5 Ne1 Qd2 Re3 Qa2 Re4 Ra7 Bb6 R3a4 Ba5
RR4Qq/Q1B1P2q/3Q1P2/KbR1br2/3bR3/n6n/1rb1qR2/4krrN w - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 e6 h4 gxh4 d6 Nc6 d7+ Ke7 Qa4 Nb8 Qc2 Ba6 Qd1 Bc8 e4 Qe8 d4 Qd8 d5 Kf6 d6 Kg7 Nd2 f5 e5 Kg6 Ne4 fxe4 Bc4 Kf7 Bd5 exd5 Kd2 Kg6 Kc3 Kf5 Kb4 c5+ Ka4 a5 f4 h5 b4 h3 b6 h4 b5 h2 g3 h3 e6 c4 e7 e3 g4+ Ke4 f5 d4 b7 e2 b6 e1Q g5 d3 g6 c3 g7 d2 Qc2+ Ke3 Bb2 Kf2 Qd1 c2 Kb5 c1R Ra3 a4 Rb3 a3 Rb4 a2 Rd4 a1B Rd5 Ra2 Be5 Rh5 Rc5 Qe2+ Rc4 Na6 b8Q Rb2+ Ka5 Nf6 g8R Ne4 Qb7 Nb4 Rg4 Nc2 Rc6 Na3 Rc5 Bg7 Qa7 Ng5 Re4 Qh8 d8R Ba6 d7 Bb5 Bc7 Be5 f6 Qh7 Qb3 d1B b7 Ke1 b8R Bc2 Qg8 Qh8 Qa6 Kf1 Rdc8 Rbb1 d8Q Bad4 Rb6 Rb2 Qa7 Kf2 Qd7 Rf1 Ra8 Ke1 Rbb8 Rh4 Qc6 Rhf4 Qd6 Rf5 Nf3+ Kd1 Rg1 h1Q Nh2 Ke1 Ng4 h2 Nf2 Qg2 Nh3 h1R Nf2 Qgh2 Rg2 Rhg1 Nh1 Q2h7 Rf2 Nh3
1kq5/2Rp4/3r3q/qb1Nb3/1QQ1n1r1/P1nP1nRR/2Rn2n1/2KBR2Q w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 Ra7 f6 Ra8 b4 b5 cxb5 axb4 g4 h6 f5 Ra3 Bb2 Ra8 Be5 Kf7 Nc3 Ke8 Bf4 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 h4 e5 d3 c5 Kd2 c4 h5 b3 a3 g3 h6 b2 h7 b1N+ Kc1 g2 g6 c3 g7 f3 b6 c2 b7 f2 Qe1 e4 Nh3 g1Q Qe3 Ra4 Kb2 c1Q+ Ka2 Qh2 Nf4 Nc6 b8Q Ba6 Qc5 e3 Be2 Bd6 f7+ Ke7 f8R f1N Qc8 Nf6 g8R Qa5 Rg3 Bb5 Qc3 Rc4 Qb4 Nd4 Qc6 Rg8 h8Q Rg4 Rc8 Ne4 Qc7 Rc6 f6+ Kf7 Nd5 Ke6 f7 Be5 Qh7 Nfd2 f8R N4f3 Rh8 Qc5 Rc1 Qf8 Rc2 Nbc3+ Kb2 Qh1 Rb8 Qc8 Rb7 Ra6 Rag1 Qh4 Bd1 e2 Rf1 e1N Qcc4 Ng2 Re1 Qf6 Qh3 Qg5 Rh4 Qh6 Qh1 Rc6 Kc1 Rb6 Qbb3 Kd6 Rhh3 Ra6 Rc7 Rb6 Rc5 Ra6 Qbb4 Rc6 Nf4 Kc7 Nd5+ Kb7 Ra2 Ka8 Rc2 Rd6 Rc7 Kb8
R3B1n1/q2N1rP1/r2b1n2/k5N1/1br1Q1p1/1PN4b/1N1K2Qq/1bN1Q1n1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 Ra3 h6 Rf3 gxf3 g4 Kd7 g5 Ke8 g6 Qf6 b3 Qb6 Ba3 Qf6 Be7 Qd6 Bh4 Qd8 Bg5 hxg5 h4 Kd7 e4 c5 d4 Kc7 g7 Kb6 d6 a5 e5 f5 h5 g4 e6 a4 e7 f2+ Ke2 f3+ Ke3 f4+ Kd2 a3 e8Q a2 h6 a1B d5 c4 h7 Qe7 d7 Ka5 d8N Nd7 b6 Ra6 d6 Be5 b7 Ndf6 b8N Bf5 d7 Bd6 Nc3 Bb1 Qe1 Qf7 Bg2 f1Q Q8e4 f2 Nge2 f3 Ne6 Qg1 d8N f1R N6f4 f2 Nd3 Qh2 Nb2 Qa7 Nd7 Bb4 Nf7 Bfe7 Qc1 Bed6 Qcc2 Rc1 Ng5 f1B Bf3 Bh3 Bg2 Rf1 Nc1 Rf4 Qe1 Re4 Qd3 Re7 Qde4 Rf7 Rf1 Nh6 Rf4 Rc8 h8Q Nhg8 Qhh7 Rc5 Q4e2 Rc7 Bc6 Rc8 Qe4 Rc7 Kd1 Rc8 Q2g2 Rc7 Nd5 c3 Ke2 c2 Nc3 Rc8 Kd2 Rc7 Bb5 Rc8 Rf5 Rc4 Rc5 Bf8 Rc8 Bfd6 Ncd3 c1N Ra8 Ne2 Nc1 Ng1 Ne5 Bc7 Be8 Bb8 Nd7 B8d6
4QKQ1/pB4n1/BnB2kN1/2Q5/bbP1rpq1/3n2Bb/3B2bP/Rrr5 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 g5 axb5 e5 fxe5 Nc6 Ra3 Nb8 g4 Nh6 Nc3 Ng8 Nd5 h6 Nf4 gxf4 g5 h5 Rg3 Qc7 Rg2 Qd8 Rg4 hxg4 Kf2 Ke7 e4 d5 e6 f5 b6 d3 e5 g3+ Kf3 g2 b7 d4 b5 d2 b6 d3 g6 Nh6 g7 Nc6 b8B Na5 g8B Bd7 b7 Nc4 Ne2 g1R c3 Ba4 Qc2 d1B Bd2 Qc8 Bc7 Nb6 b8Q Rh7 Bf7 Bd7 Be8 Ba4 Bc6 Qd7 Qc8 Rb8 Bb7 Rhg7 Qa2 R7g4 Qb3 Qd4 Qc4 Bd7 Qb5 Ba4 Qd5 Bg7 Qg8 Bf8 Qb5 Rc8 Bb8 Rc5 Qc4 Rb5 Bc7 Rb1 Qc5+ Ke8 e7 Rh4 Bg2 Rgc1 c4 Be6 Ba6 Qe4+ Kf2 f3 Kg3 f2 Nf4 f1B Ng6 Qd4 Bd5 Bg2 Bdb7 Re4 Bd6 Kd7 e8B+ Kd8 Bec6 f4+ Kh4 Qg1 Kg5 Nf5 Kf6 Ng7 Be1 d2 Bg3 Bc8 Kf7 d1N e6 Nb2 Be5 Nd3 Bc3 Qd1 Bd2 Qg4 e7+ Kc7 Qf2 Kd6 e8Q Be7 Nh4 Ke5 Ng6+ Kf5 Qe3 Bb4 Qc5+ Ne5+ Kf8 Kf6 Rf1 Bf5 Rf3 Be6 Ra3 Nd3 Ra2 Qe2 Ra3 Beh3 Ra1 Qg4
1nRQQ3/3r3B/R2bK3/bkq2b1q/8/P2nNn1P/R2p1QQp/2nQr3 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 g5 dxc5 a5 b4 axb4 h3 g4 Bf4 h6 Na3 h5 Bh2 Ra7 Nc4 Ra8 Ne5 g3 Ng4 gxh2 Nh6 Ra4 g4 Ra5 g5 Ra8 Ng4 hxg4 Ke2 e5 Kd3 b5 Ke4 d5+ Ke3 Kd7 c4 Kc6 f4 d4+ Ke4 d3 f6 g3 a3 g2 f7 b3 g6 b4 g7 b2 f5 b1N f6 b3 Nf3 g1N Nh4 b2 Be2 Qd6 Nf5 Ra7 Ra2 Nh6 g8Q Ng4 Ne3 Nf3 Rg1 Rd7 Kf5 Nf2 Qg2 e4 Re1 Qd4 Ke6 Bd6 f8Q Nbd2 f7 b1Q Qd8 Nb3 f8Q Nc1 Rg1 Qb5 Qf4 Kb7 c6+ Ka6 c7 Qh5 c5 Kb5 c6 Qdc5 Qf5 Bb7 c8Q Re8+ Kf6 Ba8 c7 Bd5 Qf4 Be6 Bf1 Ree7 Qe8 Bf5 Qcd8 Re5 c8R Re7 Qh1 Re5 Rg6 Re7 Qg2 Re5 Nc2 e3 Qfg3 e2 Ne3 e1B Qh4 Nh1 Qhf2 Ba5 Be2 Ng5 Bf3 d2 Be4 Nf3 Rh6 Be6 Bh7 Bf5 Ng4 Re1 Ne3 Bg6 Ke6 Be4 Qfg1 Nf2 Rg6 Nfd3 Q1f2 Bac7 Rg4 Bg6 Ra4 Be4 Ra7 Ba5 Ra6 Bf5+
3b1K2/1N2Q1Qn/1r5P/Rq4nQ/1b2bB2/b2nQPpr/kqR2R1p/2Q5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 f5 cxd5 fxe4 a4 g6 axb5 Ba6 h5 Bc8 g4 Bb7 g5 Bh6 Be2 Bg7 h6 Bf8 Bh5 Bc8 Na3 gxh5 g6 Kd7 g7 Nf6 Nc4 Ke8 Ne5 Ng8 Ng6 hxg6 Ke2 Kf7 Ke3 a5 Kd4 e5+ Kc4 c5 b4 g5 d4 e3 d6 Ke6 b6 h4 d7 e4 b5 g4 b7 a4 b6 e2 Ra3 e1N Rh2 h3 Bg5 e3 Bf4 e2 Be5 Nc6 b8Q Qg5 d8Q Bb7 Bc7 Ne5+ Kb5 c4 Qe7+ Kd5 Qa7 c3 Qc1 c2 Nf3 Nf6 g8Q+ Nf7 Nh4 Nd3 Nf5 e1B Qg7 Bb4 Nd6 g3 Qe2 Be7 Qh5 Rhb8 f3 Bd8 Rf2 h2 Ra2 a3 Ra1 Bc8 Nb7 a2 Bf4 Bf5 Qaa3 Ra4 Qe3 Be4 Qac1 Ke6+ Kc4 Qh4 Kb5 Ng5 Kc4 Qh3 Kb5 Qf1 d5+ Kf5 d6 Ke6 d7 Kd5 Rb1 a1Q Rb2 Rc8 Ra2 Qb2 Ra1 Rc6 Ra3 Bc7 d8Q+ Rd6 Qde7 Bd8 Na5 Rc6 b7 Re6 b8R Qe2 Qd1 c1B Rc8 Qf1 Nb7 Rc6 Qee2 Kd4 Ra2 Kc3 Qe3 Qfe2 Qg1 Kc2 Ra8 Kb1 Ra5 Rb6+ Kc4 Qa3 Rc2 Qb2 Qe1 Ka2 Qc3 Nc5+ Kd4 Qb5 Ke5 Ba3 Qe1 Bd2 Qc1 Rd4 Qe3 Bb4 Ra8 Bc6 Kf5 Nd3+ Kg6 Rd5 Ra7 Rf5 Ra5 Be4 Qh7 Rc5+ Kg7 Rd5 Kf8 Rf5 Bd6 Rf4 Be5 Rh4 Qg7 Rh3 Bf4 Nfh7+
b3k1rb/QN2p1n1/7R/n1QnPnKP/R5p1/r2n2r1/1R2Q1R1/1BR4b w - - 0 1 legal: proof: e4 c5 g4 b5 a4 f5 axb5 f4 d4 cxd4 Be3 fxe3 f4 h6 f5 Qb6 f6 Qc6 Nd2 Qd5 Ndf3 Qf5 Ng5 hxg5 gxf5 g4 Ke2 g5 h4 a5 c4 d5 b4 a4 f7+ Kd8 e5 g3 Kf3 g2 Kg4 e2 h5 e1N c5 a3 c6 a2 b6 d3 b7 d4 b5 d2 b6 d3 Qe2 d1N Nh3 d2 Nf2 Bg7 Ne4 Na6 b8Q Nc7 f8R+ Ne8 b7 Nd3 Rf6 Ra3 Rh6 Nc3 Nd6 d1B Qa7 Nd5 b8R g1R+ Bg2 Bf6 Rb2 Ng7 Nb7+ Ke8 c7 Ba4 Rh2 Bc6 Rc1 a1N Rh4 B8d7 Rh2 Nb3 c8Q+ Kf7 Qc7 Ke8 Qca5 Be6 Q5c5 Na5 Rh4 Rh1 Bf3 Rh3 Be4 Re3 Rh2 Rf3 Rg2 Bed7 Nd8 Ba8 Nb7 Bc6 Qab6 Ne6 Qa7 Bg7 f6 Rg3+ Kf5 g4 f7+ Kd7 Rf6 Nh6+ Kg6 Re8 f8R Bh8 Rf4 Ng7 R8f6 Rb8 Kg5 Rg8 Bg6 Nhf5 Ra4 Nfe3 Be4 Ke8 Rd6 Nef5 Rh6 Nf2 Bb1 Nd3 Rf2 Nde3 Rh2 Bh1 Rg2 Nd5
rr3n1q/Q1N3k1/1q2B1p1/brN3PR/6Kr/2r3Q1/Pp1QNr2/Nb3N2 w - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 h5 d5 cxd5 Nd7 h6 g6 Rh3 Ndf6 Rh4 Nh5 Rh1 Ng7 hxg7 Ra7 Rh4 Ra5 Rh1 Ra8 e4 f6 d4 Bg4 d6 Ra6 d5 Be7 Bb2 Ra8 Bd4 Bf8 Na3 Be6 Rc1 Bc8 Rc2 Qd7 Re2 exd4 e5 Qe7 e6 Qd8 Re5 fxe5 Ke2 b5 Kf3 c5 g4 h5 e7 Kf7 e8N e4+ Kg3 h4+ Kf4 h3 g5 h2 f3 e3 d7 d3 d6 d2 Qa4 d1R Nh3 e2 Nf2 e1R Qa7 b3 Nc7 b2 Ng4 b1R Bh3 b4 Ne3 c4 Kg4 c3 f4 b3 f5 c2 f6 c1R Nf1 Rc3 Nc2 Re2 Na1 b2 Qb6 Ba6 Qa7 Qb8 d8Q Rf2 d7 Qb6 Qdb8 Rd5 d8Q Rb5 Qd3 Bb4 Qd2 Ne7 g8N Nd5 Ne7 Nf4 Nc6 Ba5 Nd4 Ne6 Ne2 Nf8 Qe1 Kg8 f7+ Kg7 Qd2 Re1 Nc1 Re8 Ne2 Ne6 f8N Rd8 Nd7 Nf8 Rg1 h1Q Nc5 Bb7 Rg2 Be4 Rh2 Rd4 Bg2 Rd8 Rh5 Bb1 Bd5 Qh2 Be6 Rc8 Qbb7 Rcb8 Qg2 Qe5 Rh1 Qh2 Qg3 Qh7 Rh5 Qg8 Rh4 Rh7 Rh6 Qh8 Rh5 Rc1 Rh1 Rhh2 Bb3 Rc3 Be6 Rhg2 Rh6 Rh2 Rh5 Rh4+
3b1N1K/4n1pp/p7/1Q1Bk2q/QBQR4/B4n2/bPPQr1b1/3Qrqb1 w - - 0 1 illegal: No proof kernel
8/nrQ1Q3/kr4KB/2q1pQBP/1ppqB1Q1/1P3R1q/3N2r1/3Qn1rb w - - 0 1 legal: proof: c4 b5 f4 g5 a4 d5 cxd5 f5 g4 Bg7 e4 Bd4 a5 Bb6 axb6 h6 Nc3 fxe4 f5 Kf8 Nce2 Kf7 Nf4 Ke8 Ra3 gxf4 g5 h5 Rg3 Be6 Rg2 Bc8 Rg4 hxg4 Ke2 Kd7 d4 c5 h4 e5 b3 a5 b7 Kc7 g6 Kb6 d6 b4 h5 e3 Kd3 c4+ Ke4 g3 d7 e2 d5 e1R+ Be2 g2 g7 a4 d6 a3 f6 a2 Kf5 a1Q f7 f3 f8Q f2 Bf4 f1Q Qd5 Rh7 Bg4 Nh6+ Kg6 Ka6 g8Q Qda5 d8B Qd4 d7 Qac5 Qf5 Nf7 Rh3 Nc6 b8Q Ng5 Bf3 Re2 Be4 Na7 Nf3 g1R Nd2 Nf3+ Bdg5 Reg2 d8Q Bb7 Qe7 Ne1 Qbc7 Rb8 Rf3 Ba8 Qge6+ Rb6 Qg4 Bc6 Qef5 Qfd3 Rf1 Qh3 Rf3 Rh8 Bh6 Rhb8 Bfg5 R8b7 Qdd7 Qb2 Qd3 Qc3 Qc2 Q3d4 Qd1 Nc8 Rf4 Re2 Bc2 Na7 Rf2 Rb5 Bb1 Bh1 Rf3 Reg2 Be4 R5b6+
N1RK1qR1/2Qnp2p/3RQ1n1/2n4P/2QQ1bq1/B1b3kP/2r3bp/2b2Q2 w - - 0 1 illegal: No proof kernel
1r2NBQr/2p1Rpr1/Qr3P2/q1PppN1N/N6N/1k2n1b1/6n1/1r4QK w - - 1 2 legal: proof: a4 b5 axb5 g5 h4 a5 b3 gxh4 b6 e6 Na3 a4 Rh2 Bb7 Nb1 a3 Rh3 Bc6 Rh1 Ba4 bxa4 Ra5 Nh3 Ra6 Ng1 Ra8 e4 Qc8 d4 Bg7 e5 Ke7 d5 Qd8 Bc4 Ke8 d6 Bf8 Bd5 exd5 e6 Bh6 e7 Bf8 Ra2 Na6 Rb2 Nb8 Rb3 Bg7 Re3 Bf8 Re6 dxe6 Bh6 Kd7 Bg5 Nc6 Bc1 Nb8 Kf1 Kc6 e8N Kc5 c4 Kb4 f4 h5 g4 h3 c5 a2 a5 a1R f5 h4 a6 h2 Kg2 Nc6 b7 Be7 b8Q+ Kc4 g5 Rh7 f6 Qd7 a7 Ne5 g6 Ra3 g7 Ra6 Bh6 Ng6 Nc3 Qa4 d7 Qa5 d8N Bd6 Nf3 N8e7 g8N Rb6 Qg1 Bg3 Na4 Nf5 Ne7 Kb3 Bf8 Rg7 Qb7 Rc8 a8Q Rb8 Qba6 e5 Ne6 Qb4 Nf4 Qa5 Nh5 h3+ Kf1 Nf4 Nh4 Nd6 Nef5 Ng2 Qe2 Nc4 Qg4 Rh7 Qg8 Rg7 Qa6 Nb2 Qf2 Nd1 Rg1 h1R Qe1 Rh2 Rh1 Nf4 Kg1 Ne3 Qb1+ Rb2 Rh2 Nfg2 Kh1 Nf4 Qg1 Rb1 Ra2 h2 Ra3+ Kc2 Rb3 Nfg2 Rb4 Rd6 Rb7 Rdb6 Ra7 Kb3 Ra8 R8b7 Rd8 Rb8 Rd7 Rc6 Ng6 Nd1 Re7 Ne1 Nhf4 Rd6 Ng2 Rdb6 N2f4 Nd3 Kg2 h1R Ne6 Rh5 Ngh4 Rh8 Kh1 Ne3 Nf4 Ne1 Nh5 N1g2
Q1b4q/7P/rbB1B3/2B2P1k/3p1b1q/NQq1B1B1/4NrNp/1K3r2 w - - 0 1 legal: proof: g4 h5 b4 e5 e4 f5 d4 c5 dxc5 g5 a4 h4 Bd3 Qa5 Kd2 Rh6 Nf3 Qd8 Ra3 Rh7 Rc3 Nh6 Rc4 Rh8 Rd4 Nc6 Re1 exd4 e5 b5 axb5 Ne7 Re4 Ng6 Re1 Nf4 Re4 fxe4 h3 Nh5 gxh5 g4 Ba3 g3 Bc1 Ng4 hxg4 Qb6 Qe1 Qc7 Qd1 Qd8 c4 Kf7 Kc2 d5 c6 a5 e6+ Kg7 c7 g2 e7 g1Q e8B e3 h6+ Kf6 g5+ Ke7 g6 Kf6 b6 h3 g7 h2 g8Q e2 c5 e1R h7 a4 b7 a3 b8B a2 c6 a1B b5 Ra7 b6 Bb7 c8Q Qh1 c7 Qe7 Nh4 Ba6 f4 Qe5 b7 Bd6 Na3 Qhe4 Kb1 Rg1 Be3 Qf3 Bf1 d3 Bh3 d2 Be6 Bd4 Bc6 Bb6 Ng2 d4 Qf1 Qf2 Qce8 Qh4 c8N Bdc7 Qg3 Rf8 Ne7 Rf7 Nf5 d1Q+ Kb2 Qf3 Kb1 Ra8 Ba7 Bd6 b8B Bc8 Qh3 Kg6 Ng3 Qh8 Ne2 Kh5 Qd8 Rf6 f5 Bf4 Bd6 Rg6 Bab8 Ra6 Bc5 Rg5 Qd7 Rg4 Qb7 Rg7 Qa8 Rg6 Bc1 Qc3 Be3 Rg3 Bc7 Rf3 Be5 Rf2 Qf3+ Kh6 Qd5 Kh5 Qb3 Bg5 Bg3 Bh6 Qa2 Bf4 Qb3 Rgxf1+
2RRb2K/3b2PR/2rN4/Qr1RQ3/r2P1BR1/2r1r1b1/3knpR1/4q1n1 w - - 0 1 legal: proof: f4 a5 b4 d5 h4 b5 a4 e5 axb5 exf4 c4 g5 cxd5 g4 b6 a4 e3 g3 b7 Qg5 b5 Qd8 Nc3 Qg5 Ne4 Qd8 Nf2 gxf2+ Ke2 Qg5 b6 Qd8 Kf3 Qg5 Ba6 Qd8 Ke2 f1N Ke1 Ng3 Be2 Ne4 Ba6 Ng5 hxg5 Kd7 Bb5+ Ke7 Be8 Kxe8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 Kc3 g4 h5 d6 f5 g6 c5 g5 f3 g7 f4 e4 f2 d7 f1R g6 f3 Ke6 c4 Kf7 h4 e5 h3 e6 f2 e7 h2 e8R a3 Bh6 a2 Re4 Ra5 Rg4 Nc6 b8R Nf6 g8R Ne5+ Ke6 Qe7+ Kf5 Nf3+ Kf4 Re1 d8Q Bd7 b7 Rb5 Qe2 Ne4 Rc8 Ng3 Qe5 Kd2 b8R c3 Qa5 Re3 Nh3 Ng1 Ng5 Qb4 g7 c2 Nf7 c1R Kg5 Rcc3 Kg6 Bd6 Rgd8 N3e2 Bf4 Rh5 Re1 a1R Rb6 Bb8 Rd6 Ra4 Rd5 Rf5 Kh7 Rf6 Rf1 Rfc6 Kh8 Qb1 Nd6 Qe1 Qb6 Nh3 Rhg1 h1B R1g2 Nhg1 Qa5 Be8 Rh2 Bg2 Rh7 Bh3 Rg2 Bhd7 Rg4 Nh3 Rfg1 Bc7 R1g2 Nhg1 Rb8 Bb6 Rdc8 Bd8 Ra8 Bh4 Rd8 Bg3 Rab8 Bh4 Rbc8 Bg3
2nrR2K/8/3N2RR/Pbp2q1Q/1q1RrR2/1q1bB3/2krR1P1/Q3rq2 w - - 0 1 legal: proof: d4 a5 e4 d5 exd5 f5 b4 axb4 d6 g6 c3 Bg7 d5 Bd4 cxd4 Be6 Be2 Bd7 Bf1 Bc8 f4 g5 Bd3 Kd7 Be4 fxe4 f5 Qe8 Nc3 Qd8 Nce2 Ke8 h3 Nd7 Nf4 gxf4 h4 Nc5 Bd2 Ne6 Bc1 Ng5 hxg5 Be6 Ba3 Bd7 Bc1 Bc8 Kf2 Kd7 a4 h5 a5 b5 g6 e5 g7 c5 f6 e3+ Kf3 e2 Ke4 e1Q+ Kf5 f3 Kg6 e4 f7 e3 f8Q h4 Qa4 h3 Rh2 f2 Rb1 f1Q Bb2 e2 Bc1 b3 Rb2 Qb4 Qa1 e1R Ne2 Ba6 Qf3 Qc8 Be3 Rh4 Nc3 Re4 Kh7 Ne7 Re2 b2 g8R b1Q Kh8 Q1b3 Qh5 Qcf8 Rh1 Nc8 Rh2 Q8f5 Rg6 Rd1 Rh1 Rd2 Rh2 Ke8 d7+ Kf7 d8R Ke7 Rh1 h2 Rf8 Kd7 d6 Kc6 Rg1 h1R d7+ Re6 Ne4 Kd5 d8R+ Kc4 d5 Kd3 d6 Kc2 d7 Rb8 Nf6 Re4 Ne8 Qh3 Nd6 Qd1 Rgg8 Qf7 Qh4 Na7 Nc4 Qa4 Qh7 b4 Rg4 b3 Bd4 b2 Rde8 Qhb3 d8R Bb5 Be3 Qab4 Rd4 Rd8 Rg6 Nc8 Nd6 Qd7 Rf4 Qf5 Rgf1 Qe1 R1f3 Qf2 Rfg3 Re1 Rh3 Qf1 Rhh4 b1B Qh6 Kd1 Qg5 Kc1 Rhh6 Kd1 Qh5 Kc1 Qa4 B1d3 Qa1+ Kc2
1N3r2/7r/P3pk2/1b1p1rR1/1nQ2KRB/n1Rb1b2/PR1R2r1/R4rQ1 w - - 0 1 legal: proof: f4 a5 d4 d5 b4 c6 bxa5 Qb6 f5 Qb2 f6 c5 e4 Qb6 e5 Qd6 exd6 cxd4 g4 e6 Bg2 g6 Nd2 Be7 Be4 Kd8 fxe7+ Kd7 Bf5 gxf5 Ne4 h6 g5 h5 Nf2 Ke8 Ng4 hxg4 Qd2 Kd7 Qd3 Kc6 Qd1 Kd7 Ke2 b5 e8R b4 h4 d3+ Ke3 g3 c4 g2 g6 b3 h5 f4+ Kf3 f5 g7 d2 c5 b2 h6 b1B a6 Nc6 h7 Nh6 g8R Nf7 Qa4 d1B+ Ne2 g1R Rh5 Bd3 Qc4 Nb4 Rg4 Rg2 Rhg5 Bb7 Rb8 Bc6 Rb6 Bb5 c6+ Kd8 d7 Ke7 d8R Kf6 c7 Nd6 c8Q Ra7 Q8c6 Rf8 h8R Rh7 Q4c5 Nc4 Qg1 Na3 Rc8 Rgh2 Qc4 R2h5 Kg2 f3+ Kg3 f2 Nd4 f1R Nc6 Rf2 Nb8 Bf3 Kf4 Re2 Be3 Rhh2 Rb7 Rhg2 Bf2 Re5 Bh4 Rb2 Rhg8 Rbe2 Qc7 Bc6 Kg3 Bfe4 Rf4 Nbc2 Rb2 Bcb5 Rf2 f4+ Kg4 f3 Kf4 Nb4 R5g7+ Rg5 Rg2 f2 Qcc1 Bf3 Qcf1 Bc2 Rc3 Re5 Qc4 f1R Rf2 Bd3 Rg6+ Kf7 Rfd2 Rg3 Rg4 Rg2 R8g5 Kf6 Rad1 Rg3 Rdc1 Rg2 Ra1 Rf5+
q3rQ1R/P2PNNQ1/Nkp4n/2n1q1q1/3q2q1/1NR2K2/q3p3/Nr1R4 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e4 e6 d4 Ra7 e5 Bd6 exd6 Ra6 f3 Ra8 g4 h5 Bf4 g5 Qe2 gxf4 g5 e5 Kd1 e4 Bh3 e3 Bg4 hxg4 Kc1 Bf5 Qd1 e2 Kd2 Be4 fxe4 Qe7 Qb3 Qd7 Qd1 Qd8 h4 Kd7 a4 b5 h5 f5 h6 f3 Ke3 b3 h7 f2 a5 f1Q g6 c6 g7 b2 a6 g3 e5 b4 a7 b3 e6+ Kc8 e7 Kb7 e8N g2 d7 Na6 d6 Rb8 d5 Kb6 Ra3 Nb4 Nd2 b1Q Ngf3 b2 Ne1 Qc7 d8Q Na6 d7 Nc5 d6 Qa2 Nb3 b1Q Qd4 Qd1 Nc2 Qg1+ Kf3 f4 Nca1 Nh6 g8N Qdd2 Qg7 Qgd4 Qdf6 g1Q d8N Qb7 d7 Qa8 Qd6 Qe5 Ne7 Qgg5 Qdf6 Qdd4 Nc7 Re8 h8R Rb7 Nf7 Rbb8 Rd1 Rb7 Nd2 Rbb8 Re3 Rb7 Kf2 f3 Na6 Qdg4 Rc3 Rbb8 Ne4 Rb7 Qf4 Rbb8 Ke3 f2 Nd6 f1Q Rcc1 Qed5 Rc3 Ka5 Nd2 Rb1 Ndb3+ Kb6 Rc2 Qfh1 Rc3 Qdd2+ Kf2 Qdd5 Qff8 Qde5 Nf7 Qhe4 Nd4 Qge6 Ndb3 Q4d4+ Kf3 Qeg4#
4B1rB/1pN2nPb/1Q1BK3/5q1Q/Bb2BqPB/6R1/1pbrp3/2r1k3 w - - 0 1 legal: proof: d4 a5 c4 c5 h4 g5 hxg5 d5 cxd5 c4 b3 Na6 b4 axb4 a4 e5 e4 Nc5 dxc5 Be7 Ra2 Bf8 Rd2 f6 Rd4 exd4 e5 f5 Nc3 Ra6 Ne4 fxe4 Rh6 Ra7 Rh1 Ra8 Kd2 Kd7 f4 h5 f5 d3 Ke3 b3 Kf4 d2 g6 c3 f6 h4 Kf5 c2 a5 h3 f7 e3 a6 h2 d6 Kc6+ d7 Kd5 c6 Kd4 c7 Kc3 e6 Bh6 f8B Qe7 d8B Rh7 a7 Qh4 Nh3 Qh5+ Ng5 Qe2 Rg1 h1Q Bd6 Bd7 c8B Qeh5 Bd3 Q1h4 Be4 Qf2+ Qf3 d1B Bb2+ Kd2 Bh8 c1R g7 b2 g4 e2 Rg3 Bc2 B8e7 Be8 Bd7 Bg6+ Ke5 Rb8 a8Q Kd1 Qa5 Bf5 Nf7 Bd2 Ba4 Nh6 Qb3 Rg8 Qbb6 Bb4 Nd8 Qf4+ Kd5 Bg6+ Bg5 Kd2 e7 Nf7 e8B Kd1 Ne6 Bf5 Bb8 Rh6 Bh4 Bh7+ Be5 Rf6 Nc7 Ke1 Qab5 Rf5 Ke6 Rg5 Bd6 Rd5 Q5a5 Rd2 Qf5 Qhg5 Qg6 Qc5 Qh5 Qcf5+
r5rB/bqK3N1/1QNBBnQ1/2r2b1q/1Pn1P3/3n1B2/n2B3b/1N1n1k2 w - - 0 1 legal: proof: f4 h5 a4 d5 c4 g5 cxd5 gxf4 g4 b5 axb5 e5 b4 Be6 h4 Bc8 g5 e4 Rh3 Kd7 Rf3 Ke8 Raa3 Na6 Rg3 Nb8 Raf3 exf3 Rg4 hxg4 Kf2 Kd7 d4 Kd6 e4 f5 h5 c5 g6 a5 g7 a4 b6 a3 h6 g3+ Ke1 g2 Kf2 a2 h7 a1Q b7 c4 Qe1 c3 Qe3 c2 Nh3 g1B+ Ke1 f2+ Kd2 f3 Kd3 f4 Kc4 Qe8 Qa3 Bf5 Be2 f1N Qc3 f2 Be3 c1N Nd2 f3 Bd1 Nc6 Kb5 Nf6 Kb6 Qh5 g8B Ne5 Nb1 Bh2 Ng5 Nd2 Be6 Rg8 h8B f1N b8N f2 Bf3 Qa2 Nc6 Ned3 Qa3 Bg7 Qa6 Nc4+ Kb7 Bf8 Bd2 Nfe3 Bd7 f1R Ne6 Nb6 Ne5 Nfg4 Ng7 Qc4 Bc8 Na2 Bd7 Rc1 Bc8 Ke7 d6+ Kf6 d5 Kg5 d7 Kf4 d8Q Kg3 d6 Kf2 d7 Nd1 Qc7 Kf1 d8B Bc5 Be7 Bd4 Qd6 Qb5 Qg6 Nf6 Bd6 Rc6 Be6 Nc4+ Qb6 Qa5 Qb5 Ba7 Qb6 Rc5 Nc6 Qa6+ Kc7 Qb7+
Qb2b1k1/Pr6/qn1b2q1/1nN5/NR3P2/2R1K1NN/1Q1r4/2NnnrnR w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Bb2 g4 Ba3 Bg7 Bc1 Bf8 Be2 h5 Bf3 Ra5 Ke2 Ra8 Bb2 g3 Bg4 Bh6 f3 Ra7 Bd4 Bf8 Bf2 gxf2 Bh3 Nh6 g4 Ra8 g5 Ng8 Bg4 hxg4 h4 Kf7 d4 f1R a4 e5 a5 c5 h5 b5 h6 g3 h7 b3 f6 e4 a6 b4 d6 c4 d5 c3 d7 c2 d6 c1B a7 e3 Qc2 b2 Nd2 b1Q Ra3 g2 Rc3 b3 Qb2 Qa5 d8R Bd7 Nh3 Be8 d7 Bd6 g6+ Kf8 f7 Nh6 Ne4 Ng4 Ng3 Nf2 f4 Qa6+ Kf3 e2 Rdc8 Qc2 d8N Nd7 Nb7 Rb8 Nc5 Rb7 Rb8 Nb6 Na4 Kg7 f8N g1N+ Kg2 Be3 Nd7 Bd4 Ndc5 B4e5 Nd3 Kf8 g7+ Kf7 Nc1 Qg6 g8N e1N+ Kh2 Kg7 Nf6 Rg8 h8Q+ Kf8 Qd2 b2 Nfe4 b1N Nec5 Na3 Qa2 Nb5 Qb2 Nef3+ Kg2 Kf7 Qh7+ Rg7 Qh4 Kg8 Qd8 Rbd7 Rb7 Bb8 Qc8 Rd2 Qd8 Bbd6 Qa8 Bb8 Re7 Bed6 Re4 Rb7 Rb4 Ne5 Re4 Ned3 Rb4 Ne2 Kf3 Ng1+ Ke3 Ne1 Rbc4 Bbc7 Rd4 Bb8 Rb4 Nd1+
1B3kbr/NPNQ2N1/B4brb/b2pQ3/5B2/nK1r1qP1/2n2N2/1b4Nn w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 b4 Qa5 f5 Qd8 Ne2 h6 Rg1 h5 g3 h4 Rg2 h3 Ra3 hxg2 h4 Nh6 Rf3 Ng8 Rf4 gxf4 Kd2 g1B c4 e5 Kc2 d5 h5 a5 h6 a4 b6 a3 b7 a2 b5 a1N+ Kb2 e4 c5 e3 h7 f3 b6 d3 c6 f2 c7 d2 Nd4 e2 Bh3 e1B Nc3 f1B Qg4 d1R Ne4 Nc2 Nf3 Be6 c8N Na3 Kb3 Bd4 Ng1 Bd3 Na7 Nc6 b8B Nb4 b7 Bec3 Bcf4 Bb1 Nf2 Rd3 Bf1 Bh6 f7+ Kf8 Be2 Bf6 Qg7+ Ke7 f8N+ Ke8 Bf1 Nbc2 Qg4 Bf7 Ne6 Qc8 Nc7+ Kf8 Be2 Qe8 Qh3 Qe4 Bf1 Qf3 Be2 Bfd4 f6 Be6 f7 Nf6 Qf5 Ne4 Qh3 Rg8 h8Q Bdg7 Qf5 Bgf6 Qhh7 Rg6 Qe5 Rd1 Ba6 Rd3 Nd1 Nf2 Qg7+ Ke7 Qh7 Nh1 f8N+ Bhg7 Qh3 Bh6 Nf2 Kf7 Qg4 Kg7 Qh3 Bg8 Nfe6+ Kf7 Ng7 Kf8 Qhe6 Bf7 Nc6 Kg8 Ba7 Re8 Q6f5 Be6 Bb8 Kf7 Qd6 Rh8 Qd7+ Kf8 Qe5 Bg8 Na7 Ba5+
b2rk1KN/3qq1Q1/N2qp1R1/2QrQN2/1P3n1b/Q6P/b1nb1R1b/7Q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Bb7 b3 Bc8 Bh3 Bb7 Bb2 Bc8 f5 h6 Be5 h5 Bf4 gxf4 g5 Nh6 Bg4 hxg4 Ra4 Ng8 Ra3 Rh6 Ra1 Rh8 Ke2 a5 d4 c5 g6 f3+ Ke3 a4 Kf4 a3 Ke5 e6 d6 e3 b6 e2 d7+ Ke7 b7 e1Q+ Ne2 f2 b4 f1B d5 c4 g7 a2 f6+ Kf7 d6 c3 h3 g3 Na3 c2 Rg1 c1B Nb5 g2 Nc7 Qd2 Ng3 Be7 Qf3 Ra6 Qa3 Bc4 Rb1 a1Q+ Rb2 Qf8 d8Q Ba2 d7 Rd6 Na6 Qb1 Qb6 Qh7 d8Q Rd7 Nf5 Nc6+ Ke4 Rd3 b8Q Nd4 Ke5 Bb7 Qd5 Ba8 Qbc5 Bd8 Qbc7+ Ne7 g8N Qg5 Rf2 Nc2 Kd6 Bd2 Ngh6+ Ke8 Nf7 Ng6+ Ne7 Rg8 Nh8 Nf4 Qb8 Qgg7 Ke5 Qh4 Nf5 Qd7 Qbd6 Be7 f7+ Kd8 Qe4 Qh7 Qed5 Bh4 Q6c6 Bg3 Kf6 Qfd6 Qe5 Rd4 Qce4 Rd5 Qe1 Re8 f8Q Bh2 Qf7 Qh4+ Kg7 Qhe7 Kh7 Bg3 Qfg7 Bh4 Rgf1 g1B Q1a1 Bh2 Rg1 Qb7 Rg6 Kd7 Q1c1 Rd8 Qh1 Ke8 Kg8 Qbd7
NR6/1P1q3Q/1b2k3/QrRn3N/4b3/Q1r1q1nP/n1N1pb1n/KnQ3Q1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Bb7 b3 Bc8 Bh3 Bb7 Bb2 Bc8 f5 h6 Be5 h5 Bf4 gxf4 g5 Nh6 Bg4 hxg4 Ra4 Ng8 Ra3 Rh6 Ra1 Rh8 d4 Kd7 Kd2 a5 Kc2 e5 Kb2 c5 b4 g3 g6 c4 d6 a4 b6 a3+ Ka2 c3 b5 f3 f6 e3 d5 g2 b7 c2 g7 c1Q f7 f2 b6 f1N h3 e2 Qc2 e1B Qc3 e4 Ne2 g1N Ng3 e3 Nh5 Nf6 g8Q e2 Qh7 Na6 b8Q Qe3 b7 Nf3 Qa7 Ng3 Qc1 Bf2 Re1 Bg7 f8Q Nh2 Rd1 Qc7 Rd3 Qc6 Rc3 Qb5 Rc5 Qa4 Nd2 Nb4+ Kb1 Na2 Nb3 Qc6 Nd4 Qc7 Qb6 Ra5 Nc2 Qd8 Qbb2 Rb5 Qg1 Ng8 Qf4 Ne7 Qfb4 Rf8 Qbc1 Bd4 Qb3 Rf3 Qbb2 Ke8 d7+ Kf8 d6 Nd5 Qb4 Qde7 d8N Bf5 d7 Be4 Qb3 Qg7 Qbb2 Ke7 Ne6 Kd6 d8Q+ Qd7 Qa5 Ke5 Rc3 Bb6 Nc7 Kd6 Na8 Ke6 Rc4 Rf8 Qb3 Rc8 Rb4 Rc3 Rc4 Nab4 Rc5 a2+ Kb2 Qd4 Rb1 a1N Qba3 Nb3 Ra1 Nd2 Ra2 Qd3 Ka1 Nb1 Rc8 Qc6 Rb8 Qe3 Rb2 Na2 Rb4 Qec5 Rc4 Qe3 Rc5 Qd7
Q6r/p4n2/bb2RR2/4P1kN/QN1N1nqb/1NbqP3/nK1b1r2/3NQ3 w - - 0 1 illegal: No possible last move
1q3kbn/2NQ2b1/4r1Q1/2r2KN1/1rnQB1pQ/P5Qn/4q1Pr/1Q4Rb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 Bd7 Ne2 Be6 Ng1 Bc8 h5 Be6 a3 Nh6 Rh4 Bc8 Nc3 Ra5 Nf3 Ra7 Qc2 Na6 Bd3 Ng4 Ke2 Kf7 Bb2 Qd7 Rah1 Qd8 Ke1 Nh6 Bf1 Nb8 Ng1 Ke8 Bc1 Ra5 Qd1 Ra8 Nb1 Ng8 Bb2 gxh4 Bf6 h6 Bg5 hxg5 Ke2 c5 Kd3 b5 Ke4 e5 f4 h3 d4 c4 h6 h2 f6 g4 d6 b3 h7 c3 d5 b2 f5 c2 Qd3 c1N Nd2 b1Q Nb3 b4 Nd4 b3 Be2 b2 Bf3 Qe7 Nb5 Ne2 Nh3 Nc6 Ng5 Be6 Rg1 Bg7 f7+ Kf8 d7 h1B d6 Rc8 Nc7 Nf4 d8Q+ Qe8 d7 Nge7 Qc2 Neg6 Qf6 Qd1 d8Q b1R Qd4 Rb4 Qb1 Na5 Qd8 Nc4 Q8d7 Rg8 h8Q Nh3 Qh4 Nh8 Nd5 Rc5 Nc7 Qb8 Qg3 Bh6 Qh4 Rg7 Qg3 Rh7 Qh4 Kg7 f6+ Kg6 f8Q Bg8 f7 Nf4 Qdb2 Bg7 Qhf2 Rh2 Qfe8 Nh3 Qbd4 Qd2 Qh4 Qa2 Q7d5 Kf6 Qec6+ Ke7 Qg6 Qd2 Qdc6 Qa2 Qa4 Qf2 Qab3 Qa2 Kf5 e4+ Qd5 e3 Qe5+ Kd7 f8Q e2 Qff7+ Kd8 Bd5 e1R Qd4 Re6 Qbe3 Qe2 Qeg3 Re7 Qfe6 Re8 Qc6 Ke7 Qb5 Kf8 Qd7 Be5 Ba8 Re6 Be4 Bg7+
1n1r3n/2pqNq2/2b2b1N/2rN3Q/P2pN1N1/2qQKRP1/k1b4n/5R1Q w - - 0 1 illegal: No possible last move, all moves rejected
r5N1/1P1Nn1R1/2Rn4/Kp5N/P4Qp1/N1NQ2br/q2Q1rbq/2q2n1k w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 hxg4 a4 b4 Bb5+ Kf7 b3 a6 Ba3 bxa3 b4 Nd7 Be2 Ke8 b5 Nb8 b6 Ra7 Bd3 Ra8 Bb5+ axb5 h4 g3 d4 Kd7 Kd2 Kd6 Kc3 c5 f4 g5 f6 e5 f7 e4 b7 e3 f5 g2 f6 g4 h5 e2 h6 e1R h7 c4 Kb4 c3 Ne2 g1N Qd2 a2 Na3 c2 Rc1 a1Q Rh3 Bg7 f8N Be6 f7 Be5 Rc3 Qg5 Rc7 Na6+ Ka5 Qa2 Ng6 Bh2 f8N Qh6 Rg7 Ne7 Ngf4 Nf3 Qe3 Bg3 Qf2 Kc7 d6+ Kc6 d7 Qh2 d8Q Nd2 Qf1 Bd7 d5+ Kd6 Qf2 Ke5 d6 Bc6 d7 Ke4 Qc7 Nf1 d8Q Bd5 Qd4+ Kf3 Qd2 Be4 Q8d3+ Kf2 Nd7 Bg2 Nd4+ Kg1 Nde2+ Kh1 Qcc4 Bf2 Qce4 Rhf8 Nh5 Bh4 Qed4 Rf2 Q4f4 Nc5+ Kb6 Nf5 h8N Ne4 Nf7 Ne7 Nh6 Nd6 Ng8 Bd5 Rb1 Bg2 Rb2 c1Q Rc2 Ra7 Rc7 Ra8 Nc3 Re3 Rc4 Rh3 Rc6 Rb8 Ka6 Bg3 Ka5 Ra8+
b4rB1/3r1n2/2bQN1B1/1B1QPB1n/K1p1n2b/b1q5/3p1BkP/2B1Rb2 w - - 0 1 legal: proof: d4 e5 f4 a5 fxe5 h5 b4 axb4 g4 c5 gxh5 Qf6 a3 Qb6 d5 Qd8 c4 d6 a4 Qa5 Nd2 Qb6 Nb3 Qa5 Nd4 Qd8 Ra2 Ra5 Rc2 cxd4 c5 Ra7 c6 Ra8 Rc5 dxc5 Kd2 Ke7 Kc2 g5 Kb3 f5 e4 b5 e6 Kf6 c7 Ke5 e7 d3 e8B d2 d6 Kf4 a5 g4 d7 c4+ Kc2 b3+ Kc3 b2 a6 b1N+ Kb2 b4 a7 g3 h6 b3 h7 g2 e5 Nc3 Bh5 Nf6 Qe1 Ba3+ Ka1 Nce4 Be8 b2+ Ka2 Rf8 h8Q Nc6 Nf3 g1B Nd4 Bb7 c8B Bf2 Ne6+ Kf3 Bd3 f4 Qh6 Qa5 d8B Qc3 Bb6 Nd8 Bb5 Bh4 Bf2 Nh5 Qe3+ Kg2 Qd4 f3 Qd5 Bc6 Re1 Rb8 a8B Nf7 Bd7 Rb7 Bc2 Ned6 Bg6 Rc7 Bb7 Ne4 Bbc8 Ra7 Be8 Ba8 Bh7 Rd7 Bg8 Nh8 Bg6 Nf7 Bc5 f2 Be3 f1B Bf2 Rfd8 Qf8 Re8 Qfd6 Rf8 Nd4 Re7 Bg4 Rd7 B4f5 Qe3 Ne6 b1B+ Ka1 Bc2 Ka2 Ba4 Ba6 B4c6 Bb5 Bb4 Kb2 Bc3+ Ka3 Bb4+ Ka4 Ba3 Q5c5 Qg3 Qcd5 Qc3
3Q1nN1/1N1br1K1/2b1b3/1q2b1NQ/1qp1Pp2/2rq1Q2/NR1q1PR1/1N2k3 w - - 0 1 illegal: No possible last move
8/bB2P2r/2Q2Rp1/n2B1rBp/2p3N1/bn4rb/2n2PBK/1kBq2QB w - - 0 1 legal: proof: b4 d5 a4 a5 bxa5 g5 c4 dxc4 h4 e5 hxg5 Kd7 d4 Bd6 d5 Bc5 Ra2 Ke8 Rd2 Bf8 g4 Nf6 g6 Ke7 g7 Qd6 g8B Qb4 g5 Qc5 g6 Na6 g7 Qd6 Rd4 exd4 Nd2 Ke8 Ndf3 Qd8 Nh4 Nb8 Ng6 fxg6 e4 Ke7 e5 c5 a6 b5 e6 Kd6 a7 Ke5 a5 Ke4 a6 h5 d6 c3 d7 b4 Bh6 c4 Bd2 c2 Bc3 c1B Bf7 d3 g8B b3 Rh3 b2 Bd2 b1N Nf3 Na3 Ne5 Rh7 Rf3 Bc5 Bg2 Nc6 Kf1 Na5 Kg1 Nc2 Kh2 B1a3 Bc1 d2 Qg1 d1R Ng4 Rd5 Be8 Rb8 a8B Rb3 Bb7 Ba7 Rf4+ Kd3 Bh1 Bb8 a7 Rf5 a8Q Ne4 Qa6 Kc3 Qc6 Nd2 Bef7 Ba7 Bg2 Qf8 d8B Qd6 Bg5 Kd3 e7 Rc3 Bb2 Ndb3 Bfd5 Kd2 Bde4 Rg3 Bc1+ Kc3 Bh1 Qd1 Bgd5 Bd7 Beg2 Bc8 Bd2+ Kb2 Bc1+ Kb1 Rf3 Rf8 Rf6 Bd7 Nh6 Bh3 Ng4 Rff7 Re6 Rf4 Rf6 Rf5
Qr1B3k/r1p5/1bB1P2q/n2BN2B/2n2Pb1/1p4r1/3npBQ1/1r1R1BK1 w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 g5 h4 e5 hxg5 Qd6 b4 Qd8 d6 axb4 e4 f6 a4 Bg4 d5 Bc8 Ra2 Bh3 Rd2 Bc8 Rd4 exd4 e5 f5 Nc3 Nf6 Ne4 fxe4 Ke2 Ng8 Kd2 Nh6 Ke1 Ng8 f4 Kf7 Kf2 Kg7 g4 h5 a5 b5 d7 e3+ Kg2 h4 g6 e2 g5 b3 d6 h3+ Kf2 b2 a6 b1R a7 b4 Be3 h2 Nf3 Qf6 d8Q d3 d7 b3 Qe8 d2 d8B Bd6 Qc1 Qe6 Qcc6 d1N+ Kg2 Nb2 Bf2 Rh3 Qb7 Kh8 g7+ Kh7 Qa4 Nf6 g8B+ Kh8 g6 Nc6 Bf7 Rb8 a8B Na5 Qa1 Bc5 g7+ Kh7 g8B+ Kh8 Qa4 Bb6 Bh5 Nbc4 Rg1 Qd6 Bd5 h1R Qa3 Bg4 e6 Ne4 Ne5 Qf8 Qa2 Ned2 Qc6 Rf3 Qaa4 Rh4 Rh1 Rb7 Kg1 Ra7 Qb7 Qh6 Qbc6 Nd6 Qe4 Rfh3 Qg2 Rg3 Qb7 Rhh3 Qc8 N6c4 Bac6 Bf5 Qa8 Rg8 Bg5 Rb8 Bd8 Rd3 Rh3 Rc3 Rd3 Bg4 Rd4 Rg3 Rd3 Ne4 Rd1 Ned2
2qB1Q2/4b2Q/pQp2Q1K/n1PNn1r1/2rQb1Np/1B6/1P6/2krr1Nq w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 e5 h4 Bh6 h5 Bf8 d4 f5 dxe5 fxe4 g4 h6 Rh4 Qe7 Ra3 Qd8 Rg3 gxh4 g5 Ba3 g6 Bf8 Rg5 hxg5 Kd2 Ke7 Ke3 Ke6 f4 Kf5 c4 d5 c5 g4 h6 g3 b6 g2 h7 Nf6 g7 Be7 g8Q Nfd7 e6 Nc6 b7 Na5 b8Q c6 Qd4 Ne5 Bc4 a6 Qb7 Rb8 Qb6 Qc7 Qd8 Rg8 h8Q Rg5 Bb3 Bd7 Qg7 Qc8 Nc3 Be8 Qg8 Bg6 Qh7 Kg4 f5 Kg3 Qa7 Rb4 f6 Rc4 f7 Bf5 f8Q Bg6 Ke2 e3 Qab6 Be4 Qf6 Kg4 Qdf8 Kg3 Qd3 d4 Nd5 Bd8 e7 Kg4 e8N Be7 Kd1 e2+ Kd2 e1R Qc3 d3 Qd4 Rd1+ Ke3 d2 Ng7 Rf1 Nf5 d1R Nh6+ Kg3 Ng4 Rfe1+ Ne2+ Kh3 Kf4 g1Q Be3 Qh1 Ng1+ Kg2 Bd2 Nb7 Ba5 Kf1 Qb4 Nf3 Qb5 Ne5 Bd8 Na5 Qb6 Bd3 Nh3 Ke2 Ng1+ Kd2 Nge3 Rg3 Ng4 Kc1 Kg5 Be4 Kh6 Rg2 Nh2 Rg8 Ng4 Rg5
Nr1NnrNR/3p2nq/1p3PNr/qNkPQ2Q/q4pQb/7R/3K4/4r3 w - - 0 1 legal: proof: f4 b5 e3 g6 b3 Bb7 f5 Bc8 f6 Bh6 Bb2 Bg7 Bd3 Na6 Bd4 Bf8 Bb6 Nb8 Bf5 gxf5 e4 axb6 h3 c5 b4 cxb4 e5 Bb7 e6 Bf3 Kf1 Bg4 hxg4 Qc7 exf7+ Kd8 Ke1 Kc8 Ke2 Kb7 Kf1 Qd8 Ke1 Kc6 c4 e5 d4 h5 a4 e4 c5 h4 a5 e3 g5 h3 g4 h2 g6 e2 a6 b3 g5 f4 g7 b4 g6 b2 d5+ Kb5 c6 b3 a7 Bb4+ Nc3+ Kc5 f8N b1Q c7 b2 Nf3 Na6 c8Q+ Nc7 Ne5 Rb8 a8N Ne7 g8N Qa2 g7 b1Q Nfg6 Nf5 Nf7 Qa5 Kd2 e1R Qh5 Qe7 Nd8 Qb3 Ra3 Qba4 Qa6 Ne8 Qae2 Rh6 Qe5 Rh8 Nh6 Rf8 g8Q Nfg7 Qge6 Qf7 Qeg4 Qg8 Rb3 Qh8 Ng8 Qh7 Rg1 h1R Rg2 Kc4 Rh2 Bc5 Ra3 Bf2 Rh4 Kb4 Nb5 Bg3 Rh2 Bh4 Rah3 Kc5+ Rc3+ Kb4 Qf3 Qh6 Qhg5 Bg3 Qfg4 Qh8 Rh7 Rh6 Q5h5 Bf2 Rh3 Bh4 N8e7 Qg8 Rh8 Qh7 Ng8 Kc5+
1N2N3/1N1p4/nkNK4/3nb3/p3P1np/rb1Pp1nR/R3qR2/3QQb1N w - - 0 1 legal: proof: c4 b5 h4 a5 a4 g5 axb5 gxh4 b4 a4 b6 Ba6 b5 Bc8 b7 Ra5 b6 Rb5 cxb5 f6 Bb2 f5 e4 f4 Bd4 Nf6 Bc5 Ng8 Be3 fxe3 f4 e6 f5 Bd6 f6 Ne7 Be2 Ng8 Bg4 Bf8 Bf5 exf5 Ke2 c5 Kf3 h5 Kf4 c4 Ke5 h3 g4 h4 d3 f4 g5 c3 g6 c2 g7 c1N Ra2 h2 Na3 f3 Nh3 f2 Kd5 f1B Nc4 Nh6 g8N Na6 b8N Ne2 b7 Qb6 f7+ Kd8 Na5 Kc7 Nf6 Ng4 Nf2 Bd6 f8R Be5 Nbc6 Rh6 b8N Bb7 Qe1 Rh8 Rf7 Rc8 Rf8 Ba8 Nb7 Qa5 Ne8+ Kb6 Rf3 Qd2 Rh3 Qd1 Rg1 h1N Rg2 Nhg3 Nh1 Rc7 Rf2 Qd2 Nca5 Rc3 Nac6 Ra3 Qd1 Bg7 Kd6 Nc3 Nbd8 Bh8 Qe1 Nh6 Na7 Nc5 Na6 Ka5 b6 Qe2 b7 Ng4 b8Q Bd5 Qbb1 Bb3 Nb8 Kb6 Qbd1 Na6 Nac6 Nd5 Nb7 Be5+
2b1Nn2/NpQr1qR1/1qR5/4Kppp/5N2/p1N1Q1Pr/3RP3/nN2k2r w - - 0 1 illegal: No proof kernel
7Q/1qb2k2/2N1np2/Q3R1Q1/1rpqNP2/1rP3Kn/1N4bR/QbQnqn2 w - - 0 1 legal: proof: d4 g5 a4 e5 Qd3 exd4 Qd1 b5 axb5 g4 Ra4 g3 Ra3 Ke7 Ra1 Ke8 f3 h5 Be3 Qh4 Kd2 Rh7 Bf2 gxf2 g4 Qd8 g5 Rh6 Bh3 Rh8 Bg4 hxg4 b4 d5 h4 c5 e4 a5 Ke2 c4 e5 g3 e6 a4 f4 f6 Kf3 a3 h5 d3 h6 d2 b6 a2 b7 g2 h7 d4 c3 d3 e7 Ra3 g6 Nc6 b8N Bf5 b5 Rb3 g7 Qd4 b6 Nh6 g8Q Nf7 b7 Ng5+ Kg3 Nh3 Rh2 Nd8 Qc1 d1B Nf3 d2 Ne5 Bf3 Nd3 d1N Nd2 Ne6 Nb2 Bb1 Qg5 Kf7 Nc6 Rg8 h8Q g1Q+ Rg2 Qe1 b8Q Bfe4 Rh2 Bg2 Qb6 Qee4 Qa5 Rg7 Nb8 Qb7 Nc6 Rh7 Ne4 Rh5 Qh4 Rhb5 Qg5 R5b4 Qgf5 Bg7 Qha8 Bf8 e8Q+ Kg7 Qeh5 Bd6 Qhh8+ Kf7 Qg5 Bc7 Q8a7 Bc2 Rb1 a1Q Q7a6 Qa4 Qa7 Qab5 Qa1 Qbe5 Q7a5 Bd3 Na4 Bc2 Rb2 Bb1 Re2 Qd2 Nb2 Qe1 Rd2 Qc5 Rd5 Qd4 Re5 f1N+
n7/2BBKpq1/2rQ1pQQ/3pBP2/Bpp1n1b1/2P1R1B1/1br2q2/k2n1R2 w - - 0 1 illegal: No proof kernel
b1N3rK/4B2P/Q1r2Br1/Q6b/n1Nr2B1/1Q4B1/r1P1N2n/kn1r1n2 w - - 0 1 legal: proof: e4 b5 a4 e5 axb5 d5 d4 c5 f4 cxd4 Ra5 d3 Ra4 d4 Ra1 Qd5 exd5 e4 b4 g5 g4 h6 h4 Bd6 Ra3 Be5 fxe5 Kd8 Ra6 Kd7 Rf6 Ke8 Rf4 gxf4 g5 h5 Rh3 Bd7 Rg3 Bc8 Rg4 hxg4 Kd2 Ke7 h5 f5 d6+ Ke6 g6 Kd5 g7 Kc4 b6 a5 h6 a4 b5 g3 e6 a3 h7 a2 e7 a1R e8N g2 d7 e3+ Ke1 e2 Kd2 e1R d8B f3 b7 f4 b6 f2 Be7 f3 Nf6 R8a7 Bb4 R1a2 Nd5 Ne7 g8Q Na6 b8B Bb7 Qg6 Rc8 Be2 Nc5 Qe6 Ba8 b7 Rc6 Qd7 Na4 Bg3 Raa6 Bb2 f1N+ Kc1 f2 b8Q Rg6 Bg4 Re4 Qdd6 Nh2 Kd2 Rc6 Ne2 g1R Qa7 Rg2 Qa5 Rg1 Qf1 Rg7 Qh3 f1N+ Ke1 d2+ Kf2 d3 Bf6 d1B Qe6 Nf5 Bbe7 Nd4 Qc8 Nb5 Qca6 Rh1 Kg2 d2 Kf2 Ree6 Kg2 Red6 Kf2 Rg1 Nb6+ Kc5 Nc8 Kc4 Nc1 Bf3 Ne2 d1R Na3+ Kd5 Qd8 Nbc3 Nc4 Nb1 Qdb6 Rd8 Qh5+ Ke4 Qb3 R8d4 Qha5 Rg6 Bd7 Bh5 Bg4 Rh1 Kg2 Rg1+ Kh3 Rg8 Kh4 Rg7 Ne5 Rg2 Ng6 Rg1 Kg5 Rg2 Kh6 Rg1 Nc3+ Ke3 Ne5 Kd2 Nc4+ Kc1 Nb2 Na3 Ne2+ Kb1 Nc4+ Ka1 Bb4 Nb1 Bbd6 Rd7 Bde7 Rdd6 Kg7 Re6 Bfh4 Rg6+ Kh8 Nbd2 Bf5 Rgg4 Bf2 Nb1 Bhf6 Rg7 Be1 R1g4 Bg3 R4g6 Bg4 Rg8+
4Q3/4Q1Nk/RR2n3/2q2n2/1pKRbp1n/PPQrQ3/pb4N1/Nn4n1 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 Qf6 Nf3 Qd6 Ng1 Qd8 d3 h5 gxh5 a5 e3 Bd7 Bd2 Bc8 Bb4 axb4 a3 c5 Bh3 c4 Bd7+ Ke7 Ba4 c3 d4 b5 Bb3 Ke8 Ba2 b3 Qc1 bxa2 Qd1 Ra4 Ne2 Rc4 Ng1 Rc5 dxc5 Be7 Qf3 Bd6 Qd1 Bf8 Ke2 g5 Kd3 f5 h4 Kf7 e4 Kg7 d6 c2 e5 b4 h6+ Kg6 c6 c1N+ Kc4 g4 h7 f3 c7 f4 e6 g3 e7 g2 e8N f2 h5+ Kh6 d7 f1N Ng7 Be7 Qd4 Bh4 Qe3 Bf6 Nd2 Bb7 c8Q Qb6 d8Q Be7 Nb3 Nc6 Nf3 g1N Nh4 Nce2 Rd1 Nh2 Na1 Bf6 b3 Nhf3 Rd4 Nc3 Qde7 Nb1 Qce8 Nd8 Ng2 Ne6 Rh4 Be4 Rh2 Kg5 h6 Nh4 Rh1 Ne2 Rhd1 Ng1 Rd6 Qa5 Ra6 Qb6 Rd4 Qa7 Qd6 Ne7 Qc5+ Nef5 Qce7 Rf8 h8R Rg8 h7 Kh6 Rb6 Rf8 Rg8 Rf7 h8Q+ Kg6 Rdd6 Bb2 Rd4 Qa5 Qb5 Qa7 Ra8 Rf8 Qe5 Rd8 Qhe8+ Kh7 Qc3 Qa5 Raa6 Rd5 Rd2 Rd3 Q5c5 Rh3 Q5e3 Rg3 Rd4 Rf3 Qee1 Rd3 Qe3 Qc5+
1qkq1BK1/3N1N2/2n3BN/q2P1rnq/4n2b/1Qn3r1/b5P1/1QQ1B1nB w - - 0 1 illegal: Other
2b5/1Bq2B1K/1n5Q/b1q1rN2/kq3P1Q/4Nn2/b1NQPq2/1rBB1b1r w - - 0 1 legal: proof: b4 b5 g4 c5 a4 g5 axb5 f5 d4 cxd4 h4 Bg7 Rh2 Bf8 Rg2 e6 hxg5 e5 g6 e4 g5 Ke7 Rg4 fxg4 Ra3 Ke8 Rd3 exd3 Kd2 a5 c4 h5 f4 d5 b6 Kd7 g7 Kc6 g6 g3 c5 Kb5 c6 a4 b7 h4 c7 g2 Qc2 a3 Qc3 h3 Qa1 a2 Ba3 h2 Bc1 h1B Nf3 g1Q Qc3 a1Q Ne1 Nc6 b8N Qa5 Na3+ Ka4 b5 Qf2 b6 Qb4 b7 Ra5 Nac2 Nf6 g8B Bg2 g7 Rh1 Ne3 Nd7 Bf7 Nb6 g8B Ne5 N1c2 Bc5 Nc6 Nf3+ Kd1 d2 b8Q Bf8 Ne7 Qdd6 Bh7 Qdc5 N7f5 Be7 Qa8 Bd8 Qc6+ Rb5 Qh6 Ra5 Na3 Bh3 Kc2 d1B+ Kd3 Bb3 Bg2 Ba2 Nac2 Rb5 Ba3 Rb1 Bh1 Bf1 Bc1 Nh4 Kd2 d3 Bg2 d4 Bb7 Qf8 Bhg6 Re5 Bh7 Qfc5 Bhg6 Bce6 c8Q Bc7 Qd8 Bc8 Kd1 Nf3 Qdh4 d2 Bb3+ Kb5 Bgf7 Ka5 Na1 Bd8 Kc2 d1R Ba4 Re1 Kd3 Qc7 Bd1 Qc5 Nac2 Ka4 Ba8 Qca5 Bd2 Nc4 Ne7 Bg2 Bb7 Rh1 Bc1 Bf1 Qe1 Qab5 Qc3 Ba5 Qe1 Rf5 Ke4 d3 Qc3 d2 Qd4 Rf6 Qd5 Re6+ Kf5 Re4+ Kg6 Re5 Kh7 Nb6 N7f5 Qc6 Qdd8 Qc7 Ncd4+ Bb3 Bc2 Qbc5 Qdd6 d1Q Qdd8 Qd2 Bd1 Qde1 Ndc2 Qeb4 Qd2 Ba2
b4QN1/4N1nr/1k6/2Np1P1q/rrBQ2n1/1n3Pr1/B3BbKQ/b1Br4 w - - 0 1 legal: proof: a4 b5 axb5 g5 d4 c5 f3 cxd4 e4 f5 exf5 g4 Bc4 g3 Be2 Nf6 Bf1 Ng8 b4 h6 Kd2 h5 Ra6 Qc7 Re6 Qb6 Re2 Qd8 Rf2 gxf2 h4 Qb6 g4 Qb7 g5 Qb6 Rh2 Qc7 Rg2 Qd8 Rg4 hxg4 Ke2 a5 c4 e5 c5 e4 h5 e3 b6 a4 h6 a3 c6 g3 c7 g2 b7 a2 b5 a1B b6 Nf6 h7 Na6 b8N Nh5 g6 Nc5 b7 Qg5 g7 Nb3 g8B Bc5 Na6 Ng7 b8Q Qh5 Qb6 Bb7 Bc4 d5 Nh3 Kd7 Qh6 g1R Nf4 Rg4 Ng6 Kc6 c8B Kb6 Nd2 Rg3 Bd7 Rh3 Ba4 Ra7 Bab5 Ba8 Ne4 Rb8 h8Q Rbb7 Bg2 f1N Qf8 Nh2 Nf6 Ng4 Kf1 d3 Ne7 d2 Qh7 Bcd4 Nc5 Ra4 Nfg8 Rc7 Kg1 Rca7 Bgf1 e2+ Kg2 e1R Bfe2 Bf2 Qh8 Rb7 Qc2 d1R Qd3 Reh1 Qd4 Kc7 Ba6 Rbb4 Bab5 Kb6 Ba6 Nd2 Ba2 Nb3 Bec4 Rhe1 Bab5 Re6 Be2 Rh6 Ba6 Rh7 Bac4 Ne6 Qhe5 Ng7 Qh2 Rg3+
N1qQqr1r/b4PRN/1R1b2Q1/4N2n/3n4/knKb1rP1/3p3Q/1rR1Q3 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 g5 e4 b5 axb5 h5 f5 h4 e5 f6 Bf4 h3 exf6 gxf4 g3 Qb6 Bg2 hxg2 Nc3 Qc7 Nb1 Qd8 Kd2 a5 h4 e5 b4 d5 c4 Kd7 b6 Kd6 f7 a4 b5 Kc5 b7 Kb4 f6 f3 h5 a3 h6 e4 c5 d3 c6 a2 h7 d4 c7 f2 b6 f1R Nf3 g1B Na3 Bd6 f8N Bf5 c8Q Nc6 f7 Nf6 b8Q Nh5 Ne5 Rf3 Qa6 Qc8 Rc1 a1N b7 Bf2 Qe1 e3+ Kd1+ d2 Nb5 Bb1 Nc7 Nb3 Qd3 Bg1 Qg6 Ka3 Rh4 Bd3 Rg4 Bb5 Kc2 d1R Rg5 d3+ Kc3 e2 Rg4 Ba7 Rg5 Qe6 Qd8 Ncd4 b8R Qc8 Rb7 Rb8 Rb6 Bc4 Na8 d2+ Qd3 Qe6 Rg7 Qc8 Rc2 Rb1 Rc1 Rf4 Qg6 Rf6 Qh1 e1Q Qg1 Rf3+ Qe3 Rg8 h8Q Qe2 Nh7 Bd3+ Qc7 Rd8 Qg1 Rf8 Qe1 Qe8 Qd8 Qf1 Nc6 Qh3 Ne5 Qc8+ Qc7 Qe7 Qh1 Nf6 Ng5 Qh3 Qc8 Rg8 Qhh7 Rh8 Qe1 Qg4 Qh2 Nh5 Qd7 Rbf8 Nh7 Qe8 Qd8 Qc8+
R4nQ1/2N1k2N/bq1p2n1/1P1nbrN1/N1r4n/2b5/PK3QQ1/R1nb2R1 w - - 0 1 illegal: No possible last move, all moves rejected
2QNkb2/q1P1r2b/r2B1P2/4N1n1/p2n1N2/1B4KN/Q3QrB1/rbqb4 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 h4 h6 b4 Bg7 g4 Bf8 f5 Bb7 Rh2 Ba6 Rf2 Bc8 Rf4 gxf4 g5 h5 Ra3 Qb6 Rg3 Qd8 Rg4 hxg4 Kf2 e5 c4 a5 c5 d5 g6 f3 g7 d3 c6 d4 b6 e4 c7 a4 h5 d2 b5 d3 h6 e3+ Kg3 f2 b7 e2 b6 e1R h7 Nc6 b8N Nd4 b7 Qe7 Na3 Ra6 Nh3 Nh6 g8B Qc5 Bg2 f1Q Bb3 Qa7 Nc6 Nf7 b8Q Re7 Qe2 d1B Bf4 d2 Nd8 Ng5 Bd6 Bc2 Nc4 d1B Ne5 Bb1 Qb4 Bb7 Qbd2 B7e4 Qa2 Rg8 h8N Qf4+ Kh4 Qc1 Nhg6 g3 Ngf4 Bec2 Bgd5 g2 Kg3 g1R+ Bg2 Rh1 Nc4 Kd7 f7 Bd3 f6 Bh7 Ba3 Rf1 Bb4 Rf2 Bd6 Bg7 f8Q Bh6 Qf7 Bf8 Qfe6+ Ke8 Qc8 Rg7 Qed2 Re1 Ne5 Re7 Qd3 Rc2 Qe2 Rf1 Qa1 Ra2 Qab2 Ra1 Qa2 Rf2
Qq1bKN2/3QQ1nb/2pN1NqR/4R2r/r7/2P1pbn1/Pk1nR3/R1r5 w - - 0 1 illegal: No possible last move
1qN2q1B/NB1KnQ2/n1P1pr2/k1q4b/3Q1bpN/r6P/1Qr5/3Q1qB1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 b4 h6 g4 Na6 f5 Nb8 h3 Ba6 Ra3 Bb7 Rf3 Bc8 Rf4 gxf4 g5 h5 Rh2 Na6 Rg2 Nb8 Rg4 hxg4 Kd2 a5 Kd3 d5 c4 Kd7 c5 Kc7 b6+ Kc6 b5+ Kb7 f7 a4 f6 f3 g6 a3 g7 a2 Bg2 a1Q Be3 e6 Nc3 f2 Nf3 f1R Bg1 Ra4 Nh4 Bd6 f8Q Ra3 f7 Bf4 Qd6 Qb2 f8Q Bd7 Qf7 Ne7 g8N Qf8 Qe5 Be8 Qeg7 Kc8 b7+ Kc7 b6+ Kc6 Be4 Na6 b8Q Rh6 b7 Rf2 Qbe5 Rf6 b8B Rc2 Bd6 Qb8 Bc7 Raa2 Nb5 Kb7 Ba5 Ra3+ Bc3 Kc6 Na7+ Kb7 Nc8 Kc6 Qh8 Kb5 Na7+ Ka4 Qfh7 Bh5 Qf7 Qb4 Bf3 Ka5 Qee2 Rc1 Qb2 Rc2 Nh6 Qb8 N6f5 Qf8 Nd6 Qb8 Qb3 Qf8 Bb2 Qbb8 Ndc8 Rg6 Qa1 Bd2 Ke2 d3+ Kf2 d4 Bb7 Rh6 c6 Rg6 Qf1 Bf4+ Qe2 d2 Qa2 d3 Bg7 d1Q Qb2 d2 Be5 Be3+ Kg3 Qf1 Qhf6 d1Q Qe1+ Qd2 Qd1 Qdd6 Qf4 Qg7 Qfd4 Bf2+ Kf4 Qf8 Ke4 Qc5 Bh8 Qa8 Kf4 Rf6+ Ke4 Nd5 Ke5 Be3 Qc4 Ne7+ Qcd5 Qcb5 Kd6 Qb8+ Kd7 Qc5 Q5d4 Bf4
1n4Q1/2bN4/1P1N1Rb1/pPp1n1rq/K1rQN1qR/3Rr2Q/1q4r1/2k3N1 w - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 g5 a4 b5 axb5 e4 b3 e3 Qc2 exf2+ Kd1 Ba3 Bh3 Be7 Ba3 Bb4 Kc1 Bf8 Qd1 h6 Bd6 h5 Bf4 gxf4 g5 Na6 Bf5 Nb8 Bg4 hxg4 Kc2 Ke7 d4 Kd6 h4 f1Q e4 c5 g6 f5 h5 a5 b4 f3 Kb3 f2 g7 f4 b6 f3 h6 g3 b5 g2 h7 Qd7 Rh6+ Nf6 g8Q Qg4 Nc3 Bf5 Rh3 Nfd7 Rh4 Ne5 Ka4 Bg6 Qd2 Qe2 Rf1 Be7 Qf4 Qd2 Qh2 Qb2 Qh3 Kd7 d6 Bd8 d5 Bc7 Rd1 f1Q Rd3 f2 Rh6 Nc4 e5 Qfe2 Ne4 f1R Rh4 Rf5 Rf3 Rg5 Rf6 Bd8 e6+ Kc8 e7 Kd7 e8N Bc7 Qd3 Ne5 Qd4 Qh5 Qd1 Qeg4 Qd4 Kd8 d7 Ke7 d8R Ra7 Ne2 g1R N8d6 Rg3 Ng1 Rg2 Rf3 Rb7 Rd3 Ra7 Rf8 Rb7 Rf6 Ra7 Qc8 Rf8 h8N Rf7 Rff3 Rf4 Nhf7 Ra8 Nf6 Ra7 Nd7 Re4 Rf6 Rb7 Qb4 Rc4 Ne4 Ra7 Rc6 Ra8 d6+ Ke6 Qh8 Kf5 Qg8 Rcc2 Qd4 Kf4 Qe3+ Kf5 Qh3 Kf4 Ndf6 Ra7 d7 Rc1 Nfd6 Rc3 Qb3 Rc4+ Qb4 Rb7 d8Q Ra7 Qg8 Rb7 Nd7 Ra7 Rd4 Ra8 Nf3 Ke3 Rd3+ Ke2 Rc3 Kd1 Rd3+ Kc1 Ng1 Qf3 Nb7 Qfg4 Rf6 Nbc6 Nbd6 Re8 Ra3 Nb8 Rb3 Rc3 Qd4 Re3 Rd3 Rf8 Re6 Rff2 Rf6 Rc2 Nd2 Rc3 N2e4 Rc4+
Qnr5/N3pkq1/2Pb3K/1q3p2/rq2Q1Q1/1PBb1n1N/Q7/N1BBr2r w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 g6 exf5 Kf7 d4 cxd4 f6 Ke6 f7 Kd6 h4 Na6 g4 Bb7 f5 Nb8 f6 Bc8 Ra3 Ke6 Rf3 Kd6 Rf5 gxf5 g5 h5 Rh3 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 Ke6 Kg3 a5 Kf4 d5 c4 d3 b6 d2 c5 g3 g6 d4 Kg5 g2 h5 a4 b7 a3 h6 a2 h7 a1Q g7 d3 Nh3 g1Q+ Qg4 d1R Na3 d2 Nc2 Qa6 Be2 Qdb6 Na1 Nh6 g8Q Bg7 f8Q+ Nf7+ Kh5 Re1 Bd1 Qbb5 b3 Qg3 Qe4+ Qe5 Qd8 Qa3 Qa5 Qab4 Qa2 Ra4 Kg6 Bh6 Qg7 Re8 h8B Ng5 f7 Nf3 f8Q Bf4 Kh7 Bd7 Qg4 Rc8 Bg7 Bg3 Kh6 Rh1 Qd8 Kf7 Qh8 Qb2 Bc3 Bd6 Qd8 Be6 Qa5 Bc4 Qa8 Nc6 b8N Bd3 Nd7 Nb8 Ne5+ Kf8 Nc6 Kf7 Na7 Re1 Bc2 d1R c6 Rh1 Qe3 Rdf1 Bd1 Re1 Qee4 Qg2 Qh4 Qg8 Qhg4 Qg7+
1BrQQBbb/r1Qr1N2/2n5/Pr6/N4K2/2PB3N/1r2p1Np/1nrk1q2 w - - 0 1 legal: proof: d4 f5 e4 g5 exf5 a5 h4 c5 dxc5 Nc6 b4 axb4 a3 Nb8 h5 Bh6 Qf3 Bg7 Qd1 Bf8 g4 h6 a4 Bg7 Rh4 Bf8 Ra3 Rh7 Rg3 gxh4 g5 Rh8 g6 Rh7 Rg2 Rh8 Rg5 hxg5 Kd2 e5 Ke3 Ke7 f4 Kf6 c6 b5 h6 d5 g7 h3 c7 b3 a5 b4 h7 e4 c3 h2 Ba6 d4+ Ke2 g4 Qd2 e3 Qc2 b2 Bb7 g3 Kf3 b3 Ke4 d3 Nd2 b1R Qa2 g2 Bd5 b2 Qa3 e2 Bc4 Be6 c8N Nc6 Nb6 Ra7 Nh3 g1R Nf1 d2 Qc5 d1R Na4 Rdd7 Ne3 Rf1 Bd2 Rfc1 Ng2 Qb6 Qd6 Qf2 Qc7 Qf1 Bd3 Bd6 Be3 Be5 Bb6 Rc2 Bf2 Rbc1 Bg3 b1R Ke3 Rb5 Ke4 Nh6 g8Q Ng4 Qe8 Nf2+ Ke3 Rg8 h8N Rcb2 Nf7 Rf8 Kf3 Ne4+ Kg4 Nd2 Qed8+ Kg7 Kg5 Nb1 f6+ Kg8 f5 Kh7 Qb6 Bd4 Bb8 Bc4 Qdc7 Rc8 Qd8 Bb3 Qbc7 Bd5 Ne5 Bg8 f7 Kg7 f8Q+ Kh7 Nf7 Bh8 Qfe8 Kg7 Bc4 Kh7 Kg4 Kg7 f6+ Kg6 Kh4 Kf5 Kg3 Qe1+ Kf3 Qh1 Ke3 Qf1 Bd3+ Kg4 Ne5+ Kg3 f7 Rd1 f8B Re1 Ke4 Rc1 Ng5 Kf2 Nef7 Rb6 Kf4 R6b3 Ne3 Rb5 Nh3+ Ke1+ Ke4 Kd2 Ng2 Kd1 Ke3 Qe1 Kf4 Qf1+
1B4Nk/1pqr1Q2/2NN3p/2QB3K/3N3b/qbQ1p2P/n3r1P1/4bbBn w - - 0 1 legal: proof: c4 d5 cxd5 f5 e4 a5 exf5 Nd7 b4 axb4 a4 Nb8 f4 g5 f6 Bd7 f5 Bg7 Nh3 Bh6 Be2 Bc8 Rf1 Bf8 Ra3 bxa3 Rf4 gxf4 Kf2 Kf7 Kf3 c5 Kg4 e5 d4 f3 d6 h6 d5 c4 d7 c3 d6 f2 a5 f1B a6 e4 a7 c2 Qe1 a2 Kh5 a1B Bf3 Qe8 d8B Qe5 d7 Bb5 Nf2 Qd6 h3 Be5 Bf4 c1Q Ng4 Be7 Qc3 Qca3 Bb6 Ba6 Nd2 Nc6 Bg1 Nb4 Nc4 Na2 d8N+ Kf8 f7 Kg7 f8N Be6 Bg3 Rh7 f6+ Kh8 f7 Bh4 Nc6 Re8 a8Q Ne7 Nf6 Nf5 Qa7 Bd4 Qb6 Bf2 Qc5 Be1 Ng8+ Rg7 Bf4 Qd7 Bb8 Qc7 Nd6 Bb3 Ne6 Bf1 Ned4 Re6 f8Q Rd7 Qf7 Ng3+ Kg4 Nh1 Kh5 Rf6 Qg5 e3 Qgc5 Rf4 Be4 Rf2 Bd5 Re2
B1b3kr/R3qn1p/3p3p/B1R3PP/7Q/4Q1r1/B1r1K1Rr/2bqbQR1 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 Nc3 Nc6 Nd5 Ne5 Ne3 Nc6 Nf5 Nb8 Nh6 Ba6 Ra2 Bb7 Ra1 Bc8 e4 gxh6 e5 d6 e6 Nd7 Nf3 f5 exd7+ Kf7 Nd2 Qc7 Ne4 fxe4 Bd2 Qb6 Bc1 Qd8 h4 a5 f4 e5 b4 a4 c4 a3 g4 a2 f5 e3 c5 e4 b6 e2 c6 d3 c7 Qe7 d8Q Ra7 f6 Qe8 b7 Qc6 b8Q Be6 c8B Qc2 b5 Rb7 h5 Ne7 b6 Nc6 Rg1 Bg7 Bd2 Rc7 b7 Ne5 Ba5 d2+ Kf2 e1B+ Ke2 e3 Qa7 Rc3 Bg2 Qe4 b8R+ Bd7 Rc1 a1R Ra8 Raa3 Qc5 Rc4 Ra7 Rc2 Ba6 Qb7 Bc4+ Be6 Bb3 Qe7 Ba2 Rb3 Qd4 Bc8 Q8b6 Kg8 g5 Nf7 Ba8 Rbc3 Qh4 Ra3 Kf3 e2+ Qe3 Bg3 Qf1 e1R Rg2 Re2 Rb1 Bf2 Rb5 Rb3 Rc5 Be1 Rg1 Rh2 Rg2 Ra3 Ke2 Kf8 Qe6 Rg3 Qe3 Nd8 f7 Bb2 B8d5 Bc1 Ba8 Kg7 f8R Nf7 Re8 Qc7 Re4 Qe7 Rg4 Kg8 Rf2 Rgh3 Rg1 Rg3 Rfg2 d1Q+
1RQ5/1prR1b1K/1bRp3Q/q2nk2p/2r1NR1N/1Pp3Qp/1Np1P3/7b w - - 0 1 illegal: No proof kernel
3q1Q2/p2B1p1N/Pr1nBr2/4q2Q/2r1rPQ1/3N1KBN/1pn3rb/3B1k1b w - - 0 1 legal: proof: e4 d5 b4 dxe4 f4 g5 a4 c5 bxc5 g4 Ra3 Nd7 Ra2 Nb8 h4 h5 Ra3 Qd7 Rf3 Qd4 g3 Qd8 Rh2 Qa5 Rg2 gxf3 g4 Qc7 g5 Qd8 Rg4 hxg4 Kf2 Kd7 d4 Kc6 c4 b5 a5 e5 g6 b4 a6 g3+ Ke3 f2 h5 b3 g7 b2 h6 g2 h7 Nf6 g8N Bb7 Ke2 e3 Na3 e4 Nc2 Ne8 Ne1 Nd6 Nh3 g1R Bd2 Rg2 Nf6 Rhg8 h8Q R8g6 Nh7 Rf6 Ba5 Be7 Nd3 Bf8 Qe1 Be7 Kd1 e2+ Kd2 Bf8 Qd1 e1R Be2 f1R Ke3 Rfg1 Bb4 Rgg6 Kf2 e3+ Kf3 R1g2 Qg7 Rh6 Qg4 Be7 Bf1 Ree2 Be1 Rc2 Qh5 e2 Bg3 e1Q Be2 Qea5 Qg1 Qe1 Bd1 Qe5 Bf2 Re2 Bg3 Re4 d5+ Kc7 Nc1 Nc6 Nd3 Nb4 c6 Nc2 c5 Rhg6 Qg4 Rb8 Qh2 Rc4 Qh1 Re6 Qh2 Bh4 Qh1 Rgf6 Qh2 Kc8 c7 Kd7 c8B+ Kc7 c6 Kb6 c7 Kb5 Qh1 Bc6 Bd7 Rb6 c8B Re8 Be1 Bg3 Be6 Bh2 Bcd7 Rd4 Bg3 Kc4 Qf1 Kc3 Qe2 Rc4 Qh5 Qg5 Qg4 Qg7 Qe5+ Kd2 Qeh5 Qg5 Qh6 Qe5 Qhh5 Ne4 d6 Bd5 Ndf2 Ke1 Nd3+ Kf1 Bb5 Bb7 d7 Nd6+ Bc6 Qb8 d8Q Re7 Qf8 Qd8 Bc8 Qb5 Bf5 Ree4 Bcd7 Qe5 Bfe6 Rg1 Qgg6 Re2+ Kg4 Bh1 Qgf5 Rgg2 Kf3 Re1 Qfg4 Ree4
b3kr1B/Q1ppB3/1Kb2b2/B4n1p/1n3pQ1/R2rQR2/pnRP3P/3B2q1 w - - 0 1 illegal: Other
2n5/rN1N1qrR/1rRPQn2/bN1K1b2/2R4P/2r3b1/b2kbR2/1Rr1R3 w - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 g5 a4 b5 axb5 e4 b3 e3 Qc2 exf2+ Kd1 Ba3 Bh3 Be7 Ba3 Bb4 Kc1 Bf8 Qd1 h6 Bd6 h5 Bf4 gxf4 g5 Na6 Bf5 Nb8 Bg4 hxg4 Kc2 Ke7 Kd3 Kd6 Kd4 f1R h4 a5 e4 c5+ Kc4 Ke5 b6 f5 g6 a4 b4 f3 d4+ Kf4 b7 Ke3 d6 f2 e5 g3 d5 g2 e6 a3 g7 f4 b5 a2 b6 f3 e7 Qd7 e8R+ Ne7 g8R Ra7 Rg3 Rh6 Qc2 Rc1 Rh2 Rf6 Rg6 f1B+ Ne2 g1R Nd2 f2 Nb3 Qe6 d7 Qf7 d8N Bf5 Rb1 Nd7 b8R a1B b7 Bc3 Rc8 Rb6 b8R Nf6 Rb7 Ba5 Rbc7 Bh6 Nb7 Bf4 Rh6 Bg2 Ned4 Bg3 Rc6 Bh1 Rh7 f1B+ Ne2 Bhe4 Rf2 Be6 R8c7 Nc8 Ree7 B4f5 Re8 Bg2 Ned4 Bf3 Nb5 B3g4 N3d4 Bd1 Nf3 Rg2 Ne5 Be2+ Kb3 Rgg1 Qc4 Kd2 d6 Rg2 Nd7 Rc3+ Ka4 Bd5 Qe4 Ba2 Qe6 c4 Re7 Rc2 Ka3 c3 Rc4 Rb2 R7c6 c2 Ka4 c1R Ka3 Rba6 Re8 Rbc2 Ka4 Bd8+ Kb4 Rc3 Kc5 Ba5 Kd4 Rb6 Re7 Ng4 Kd5 Nf6+ Kc5 Bf4 Qe4 Rg7 Re5 Bg3 Qd5+ Kc2 Qe6 Kd3 Re4 Bf3 Re1 Bd1 Rbb2 Be2 Rb1 Kd2 Kd4 Ng4 Kd5 Nf6+
4B3/k1q1Nq2/b1pbKB1N/6Q1/b1p1B1P1/p4r1n/N3nP2/Bn2Br1B w - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 hxg5 e5 c4 dxc4 axb5 Ba6 Qa4 Bb7 Qd1 Bc8 e4 f6 g4 Kd7 b4 Ke7 d5 Ke8 Ra3 Qd6 Rd3 Qd8 Rd4 exd4 e5 f5 Rh3 Ne7 Re3 Ng8 Re4 fxe4 Ke2 Kd7 b6 a5 b7 h5 g6 a4 b5 d3+ Ke3 h4 Kd4 a3 e6+ Kd6 e7 d2 e8B e3 g7 e2 b6 e1Q Bd3 h3 Ne2 h2 Be4 h1B Ng3 Nh6 g8B Nf7 Nc3 Ng5 Na2 Nh3 Qc2 d1N Bd2 Rh7 Qc1 Nc3 Bgf7 Qe2 Be1 Qf3 Qg5 Nb1 Bfg6 Qf5 Bc6 Bf3 Bge8 Bd1 Bh1 Qff6+ Ke4 Kc5 Nf5 Rh4 d6 Ba4 d7 Qf7 Ke5 Rh6 Ne7 Rf6 Bcd5 Rf3 Be4 Kb5 Nf5 Ka6 Nh6 Bd6+ Kd4 Qg7+ Kd5 Nc6 b8B Nd4 b7 Ne2 Ke6 Qh7 Ba7 Rb8 Bd4 Qg7 Ba1 Ka7 Ng8 Qh7 Ne7 c6 Bf6 Qc7 Ba1 Ra8 b8B+ Ka6 Ba7 Rb8 B7d4 Kb7 Bh8 Ka7 Bhf6 Ba6 d8N Rb2 Nf7 Rd2 Nc3 Rd1 Nh6 Qg7 Na2 Qf8 Ba5 Rf1 Be1 Qf7+
2r1k3/1r2rR2/2N1Bp2/R4pb1/2nPNqNN/1p1rR3/bPK1nN2/n4N2 w - - 0 1 illegal: No possible last move
RqB1nBK1/2B4n/2B5/N2B2rq/p2krb2/Prp5/1qP4q/1bBNN2n w - - 0 1 legal: proof: g4 f5 d4 fxg4 Bg5 b5 Bc1 e5 dxe5 b4 a3 h5 Qd4 b3 Ra2 bxa2 b4 g3 Qg4 hxg4 Kd2 Ke7 Kc3 Ke6 Kc4 a1Q f4 a5 h4 g5 e4 d5+ Kb5 c5 h5 d4 Kc4 a4 b5 d3 b6 g2 b7 d2 h6 d1Q h7 g3 Rh3 g4 Nf3 g1Q Ne1 g2 Nc3 Nd7 b8N g3 Nc6 Qh2 Na5 g1R Bg2 Qh5 Nd1 Bh6 Bf3 g2 f5+ Ke7 Kd5 c4 e6 Kf6 e7 c3 e8B Bf4 Rh4 Nf8+ Bd7 Rb8 Rh3 Rb3 e5+ Kg7 e6 Kf6 e7 Qb2 e8B Qb6 Rg3 Qb8 Rh3 Ba6 Bc8 Bc4+ Kd4 Bf7 Bd5 Be6 Kc4 Ke5 Bc6 Nf6 Rh4 Ne8 f6 Rg8 h8B Nh7 f7+ Rg7 f8B Rh1 Bd2 g1N Bc1 Ne2 Rg4 Ng3 Rg6 Bh3 Rd6 Be6 Rd8 Rg1 Kc5 Nh1 Kc4 Kf5 Kc5 R7g4 Be5 R1g3 Bc7 Re3 Kc4 Rg5 Kd4 Re5 Kc5 Nef6 Kd6 Ne8+ Ke7 Re4 Bb6 Ke5 Bc7+ Kd4 Nf2 Q5h4 Nd1 Bg4+ Kf7 Be2 Rd6 Qh5+ Rg6 Bc4 Kg8 Rb6 Rg7 Ba2 Rg6 Rge5 Rd6 Rb3 Rd8 Bb1 Bf5 Qb5 Ra8 Qb8 Bc8 Rg5+
5r2/P1KQ1Bbp/3n2p1/RQ1nn2b/N3BB2/kBQq3p/2P1nn2/7Q w - - 0 1 legal: proof: b4 c5 h4 a5 f4 g5 d4 e5 fxe5 Be7 dxc5 Nc6 h5 Bd6 a4 axb4 Ra3 Nb8 Rah3 Be7 Rh4 Bf8 g4 gxh4 g5 b5 g6 Na6 g7 Be7 h6 Nc7 Nc3 Ra5 Nd5 Bf8 Nf4 Na6 Ng6 fxg6 Be3 Nb8 Bc1 Nf6 g8B Ra6 Bd5 Re6 Bc4 Re7 Bg8 Rg7 hxg7 Ba6 Kf2 Bb7 Ke1 Bc8 Kd2 Ke7 Kd3 d5 Kd4 h3 e4 b3 e6 b4 Ke5 d4 a5 b2 c6 b1N a6 d3 c7 b3 a7 b2 Bf4 d2 Bd3 Na3 Ne2 b1N Bf7 Nb5 g8B Bd7 c8Q N1a3 Nc3 Nd4 Na4 Bg7 Qc3 Ne2 Rg1 Bc6 Rg5 Nb5 Qh1 d1N Rf5 Qd7 Rg5 Nd6 Rh5 Kd8 e7+ Kc7 e8Q Nf2 Bb3 Qd8 Bgf7 Nd5+ Ke6 Kb7 e5 Rf8 Be4 Ka6 Qd7 Kb5 Qd3+ Kb4 Qc3+ Ka3 Rg5 Nb5 Rf5 Nbd4+ Kd6 Ba8 e6 Nbc6 e7 Ne5 e8Q Nb5+ Kc5 Nd6 Rh5 Nc7 Kb6 Bd5 Rf5 Be6 Rg5 Bg4 Qb5 Bh5 Qed7 Qa8 Rf5 Qd5 Rg5 Nce8 Rf5 Nf6 Kc7 Qd3 Qb6 Nf3 Ra5 Ne5 Qbb5 Nd5+
4BQ2/1Nq1P3/3rn1QN/QR1b1K1Q/r4b2/2bbr1NN/q5qP/n3kn2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b4 h6 Bb2 Qe7 Ra3 Qd8 Bf6 Rh7 Rf3 gxf3 g4 Be7 g5 Rh8 g6 Bf8 Bg5 hxg5 Kf2 Kd7 d4 Kd6 e4 a5 b6 f5 b7 c5 g7 c4 b5 g4 b6 a4 Na3 g3+ Ke1 c3 Qd3 f2+ Ke2 f3+ Ke3 g2 Kf4 c2 Qb3 c1B+ Qe3 Nc6 b8Q+ Qc7 b7 Rh6 Kg5 f4 Nc2 a3 Qd3 a2 Be2 f1Q Nh3 a1Q Nb4 f2 Bf3 Ra4 Nc2 Nd8 Ne3 Ne7 g8N Nec6 Bh5 f3 Be8 Ne6+ Kf5 g1R Qc2 Qe2 Nf1 Bf4 Ng3 f1B Qd3 Rg6 Nh6 f2 Qa8 Bg2 b8Q f1N Qa5 Nb4 Qbb5 Bg7 Qc2 Qa2 e5+ Ke7 Qb1 Ba6 Qe4 Nc2 d6+ Kd8 d7 Ke7 d8N Na1 Qeb1 Bd5 Nb7 Qg2 Qe2 Bb5 Qbe4 Bd3 Qh5 Ng5 e6 Bge5 Nc5 Kd6 e7 Ne6 Bb5 Nd2 Be8 Re1 Rf1 Re2 Rb1 Re3 Rb2 Nf1 Rb5 Ba8 d5 Rf6+ Kg4 Bc3 Qeg6 Bc6 Ng5 Ke5 d6 Kd4 d7 Ba8 d8Q+ Bd5 Nb7 Kc4 Nh3 Kd4 Qc8 Kc4 Rc5+ Kb3 Qd8 Kc2 Rb5 Kd2 Qb8 Ke1 Qc8 Nc5 Qcf5 Rd6 Qf8 B3c4 Kf5 Ne6 Bd7 Be2 Be8 Bd3+
3qNQ1b/bBnR1PQQ/1Q1R4/3r1p2/3p2Rn/6rk/Kr3Prn/4bR2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 Kd2 b5 axb5 Bb7 Ke1 f6 e4 Kf7 e5 Ke6 Nc3 Bc6 Nb1 Kd5 e6 Kd6 Bc4 Bf3 Be2 Bh5 Bf1 Bf7 exf7 Ke5 Be3 Ke6 Bc1 Kd6 h4 g5 h5 Ke6 Bf4 Kd5 Bg3 Ke6 Bh4 gxh4 Bc4+ Ke5 Bf1 Kd6 g4 h6 g5 Qe8 g6 Kc5 Nd2 Qd8 Ndf3 Kd6 Ng5 hxg5 Kd2 Ke6 Kc1 Kf5 Kb1 d5 c4 a5 b4 e5 c5 g4 h6 e4 c6 a4 h7 e3 c7 d3 c8R a3 b6 g3 g7 d2 b5 a2+ Kb2 e2 b7 Kg4 b6 h3 Bg2 h2 Rc7 f5 Kb3 Na6 b8R Nf6 b7 Bc5 Rbc8 Rg8 b8Q Ba7 Nf3 e1B Rd7 Nc7 Rg1 h1R h8Q Rh2 Qb6 Rb8 Qh7 Rb7 Qb1 d1R Ng5 Rd4 Be4 g2 Ne6 Rh3+ Qd3 Rg3 Qc3 Rdd3 Rd1 a1B Rf1 g1N Ka2 Nf3 Qcc5 Rb8 Qf8 Nh4 Rd2 Kh3 Bh1 Nb5 Nc7 Ng4 Ne8 Nh2 Rc4 Nc7 Rg4 Rg2 Rd1 Rdg3 Rd2 Rh8 g8Q Bf6 Re2 d4 Re6 Rb7 Qg5 Rg8 Rc6 Bh8 Rcd6 Rg6 Qgh6 Re6 Q6g7 Re5 Qc5 Rb4 Qa5 Rd5 Qb6 Rg1 Bf3 R1g2 Be4 Re5 Bc6 Rd5 Bb7 Rb2+
nqQb4/1q1Q2Qb/BB1Bp3/1P1Nb1b1/6R1/qb3np1/1rQ3PB/4K2k w - - 0 1 legal: proof: c4 a5 h4 d5 a4 dxc4 Rh3 b5 axb5 g5 Rh2 g4 Rh1 Ra6 Na3 Rg6 Nb1 Rg5 hxg5 Ba6 Rh5 Bb7 Rh1 Bc8 b4 e5 d4 Nh6 e4 Qf6 d5 Qd8 Ra3 Ng8 Rd3 Bc5 Rd2 Bf8 Rd4 exd4 e5 Kd7 e6+ Ke8 e7 Be6 Nd2 Bc8 Ne4 Kd7 Nc5+ Kd6 Ne6 fxe6 Qc2 Kd7 Qb3 Bh6 Qd1 Bf8 e8Q+ Kd6 f4 c5 b6 h5 g6 c3 b7 h4 f5 Ke5 d6 d3 d7 c2 g7 d2+ Kf2 Kf4 f6 a4 f7 h3 Ba6 h2 Bb2 c1Q Bc3 c4 Nf3 a3 Nd4 a2 Qa4 a1B Qb3 d1B Qe7 Nc6 b8B+ Ne5 Ke1 Kg3 Bb7 Qa3 Qb1 Nf6 g8Q Nd5 Ba7 Nb6 Qe8 Nf3+ Kf1 Bb3 Qf5 Na8 Qgg6 Be7 Ba6 Bb7 f8B Be4 Nb5 Qb8 Qg7 Bd8 Bb6 Rh3 Bcd4 c3 Nc7 c2 b5 c1B Nd5 Bcg5 Bg1 Be5 Bd6 Bb1 Qe4 Bd3+ Qe2 Bh7 Qc2 Qb7 Bbc7 Qb8 Bgb6 Rh4 Ke2 Qb7 Rd1 h1Q Rd4 Kh2 Rc4 Qha1 Kf2 Kh1 Qeh8 Bde7 Qc8 Bd8 Ke2 Qg1 Ra4 Qh2 Rc4 Bdf6 d8Q Qg3 Qdd7 Bd8 Bg1 Qf4 Bcb6 g3 Bh2 Qf8 Rb4 Re4+ Kf1 Re2 Rg4 Qf4 Q2c4 Rb2 Qc2 Qfb4 Ke2 Qc5 Kd1 Qcc7 Ke2 Qcb8 Kd1 Nd2 Ke1 Nf3+
N6b/n2kN2b/1rpbbrBq/P1pQ1R2/8/q5Qr/1rP3NQ/QN5K w - - 0 1 legal: proof: b4 f5 e4 a5 exf5 d6 a4 h6 f4 Kd7 g4 Ra6 f6 Nc6 f7 Rb6 f5 Ra6 f6 Nd4 Ba3 Nf5 gxf5 Ra7 Bb2 axb4 Bd4 Ra8 Bc5 dxc5 Ra3 Rh7 Rg3 Rh8 Rg5 hxg5 Kf2 Kc6 Kg2 e5 h4 b5 d4 b3 h5 b2 a5 e4 h6 g4 h7 g5 Bc4 b4 Ba2 b3 Nc3 b1R Rh5 g3 Qf1 g4 Rh6 e3 Rh2 b2 Rh5 e2 Nh3 e1B Nf4 Ne7 Kh1 Rb8 d5+ Kd6 Qe2 Nc6 Qh2 Na7 Rg5 Be7 f8Q c6 Qg8 Qf8 f7 Rb7 f6 Bf5 Rh5 Qg7 f8Q Rb6 f7 Qg6 Bc4 Bf2+ Bf1 Bd4 Qfg7 Be5 f8N Kc7 Qf6 g2+ Kg1 Qg7 d6+ Kc8 d7+ Kc7 Kf2 g1R Bd3 Rgf1+ Kg2 g3 N8e6+ Kd6 Nc7+ Be6 Qg1 Rf3 Kh1 g2+ Kh2 Qg5 Na8 Qg6 Qgg7 Rf8 h8N Qh6 Ng6 Rg3 Qe1 Rh3+ Kg1 Rf7 Qg5 B7f6 Ne7 Rf8 Qg8 Bh8 Qf1 Rf6 d8Q+ Bd7 Qc8 Bf5 Qb8+ Kd7 Qc4 Bh7 Bg6 Bc7 Qe2 Be5 Qg8 Bd6 Qg3 Rb7 Qd5 Rb6 Kf2 g1Q+ Kf3 Rb7 Rf5 Rb6 Qh2 Qe3+ Kg2 Qc1 Kh1 Qe3 Ne4 Qa3 Qfg1 Ra1 Nd2 Ra2 Qa1 b1B Qdd3 Rab2 Ng2 Ba2 Nb1 Bf7 Qd5 Be6
4Q1Q1/3R2p1/B5QN/2Kn1n2/4P2Q/nnkrp1pr/1n2Pr1q/Rb3RR1 w - - 0 1 illegal: No extended proof kernel
1Q1nn1NN/2B4b/Q1p1N3/1pbp1bQb/5KP1/2P1NQ1n/6b1/2Rq1rk1 w - - 0 1 legal: proof: e4 b5 d4 e5 dxe5 Ke7 f4 a5 b4 axb4 e6 Ra3 Kd2 Kd6 e5+ Kc6 e7 Re3 e6 Re5 fxe5 g5 a4 h5 g3 h4 Ke1 h3 Bg2+ hxg2 Ra3 Rh7 Rf3 Rh8 Rf4 gxf4 Ke2 Kc5 Kf3 f5 e8Q b3 h4 b2 h5 d6 e7 Nf6 a5 Nc6 Nd2 Kd4 a6 b1B Qg6 Ne8 a7 Be6 Nh3 g1N+ Kf2 f3 a8Q f4 h6 Bc8 h7 Bf5 c3+ Kd3 Ng5 Nh3+ Kf1 Ke3 e6 f2 Kg2 Qd7 Qa6 f1B+ Kh2 Kf2 g4 f3 Nc4 Bg2 Bf4 Nd8 Ne3 c6 Qf6 Rg8 h8N Bg6 Qd3 Bh5 Rc1 Rg6 Qe5 Rf6 Qdd5 Bh7 Qf5 Ke2 Kg3 f2 Be5 f1B Qdf3+ Kd2 Qg6 Nf2 Qh6 Bf5 Kf4 B1d3 Qg7 Rf7 Qh6 Bh7+ Qf6 Bdf5 Qg7 Nc7 e8N Kd3 Nf6 Ne8 e7 Kd2 Qd5+ Ke2 Ng8 Rf6 Ne6 Rf7 Nd1 Kf1 Qg5 Kg1 Qe4 d5 Bb8 Qa7 Bc7 Qd4 Ne3+ Qd1 Qd3 Nf6 e8Q Bc5 Qf8 Ne8 Qe4 Rf6 Qf3 Bc2+ Nf5 Ne4 Qgg7 Nf7 Qg5 N8d6 Qb8 Nd8 Qe2 Ne8 Ke5 Bb1 Ne3 Rf1 Qf3 Nf2 Kf4 Bbc2 Qba7 Bcf5 Qb8 Nh3+
rk1b4/1n2R2q/PB6/1B2rR2/6Pp/1rbB2RQ/Bq3BnK/bn1R4 w - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 a5 fxe5 Bh3 a4 Bc8 b4 axb4 g4 g5 Na3 bxa3 Nh3 Ra5 Nf4 gxf4 g5 Ra8 h3 Bg4 hxg4 Qc8 Rb1 Qd7 Ra1 Qd8 Kf2 Kd7 Kg1 Kc8 d4 c5 e4 b5 d6 f5 g6 h5 e6 h4 d5 f3 a5 b4 a6 a2 e5 f2+ Kh2 f4 g7 f3 e7 b3 e8B c4 e6 c3 e7 c2 Bb2 c1B Beb5 Nc6 e8B Be7 d7+ Kb8 d6 Qb6 d8B Bd2 d7 Nh6 g8R Bc3 Bg6 Na5 Ba3 b2 Bg2 f1R Bgd3 b1N Qb3 f2 Rg7 Re8 Bc5 Nb7 Rg1 Nf5 Bd5 Ne3 Rg3 Ng2 Rh7 Qf6 Bdb6 Bd8 Re7 Qh6 Bf7 Qh7 Bd5 Re1 Bg8 f1Q Bf2 Qe2 Bf7 Na3 Rd1 Nb1 Qa3 a1B Ba2 Qb2 Qb3 Bc7 Qa3 Rc8 d8R Re5 Rf8 Bd8 Rf5 Rc4 Qc5 Rb4 Qe3 Rb3 Qf3 Ne3 Qh1 Ng2 Qf1 Nf4 Qh3 Ng2
2n1Rb2/1R1r4/1n2NR1q/4pP1K/5RQ1/1q1N1rP1/4q1r1/NR2Nqnk w - - 0 1 legal: proof: f4 a5 b4 b5 e4 g5 c4 f5 a4 g4 axb5 Na6 b6 Nb8 b5 d5 Ba3 Bd7 Bb4 axb4 Be2 Be6 cxd5 fxe4 Bf3 gxf3 h3 Bg4 hxg4 Qc8 Qc1 Qd7 Qd1 Qd8 Kf2 Kf7 Kg3 Kg6 Kh4 e5+ g5 Kf5 d4 h5 g3 c5 d6 c4 b7 f2 b6 f1R d5 e3 d7 Ke4 f5 c3 d6 b3 Ra7 e2 Ra2 e1Q Ra1 c2 Ra6 c1N Nf3 b2 Na3 b1Q Nc2 Ne2 Na1 Ne7 g6 Qb3 g7 Qc7 d8N Rh7 g8R Nc8 d7 Ng1 Ne6 Qe2 d8N Nd7 Ne1 Rf3 b8R Rg7 b7 Ndb6 Nc6 Rd7 Kg5 h4 Nb4 h3 Kh5 h2 Rg4+ Ke3 Rh4 Kf2 Rf4 Ra7 Ra8 Rd2 b8R Qg7 Rb7 Kf1 Rbb8 Rad7 Nbd3 Ra2 Rb7 Rd2 Nec2+ Kg2 Rab8 Nh3 Rf1 h1Q Nce1+ Kh2 Rba8 Ng1 Rab8 Nd6 Re8 Ndc8 Qc1 Qhg2 Qc4 Kh1 Qe4 Re3+ Qf3 Rc2 Qg4 Rf3 Rf2 Qef1 Re2 Ra2 Rb2 Qge2 Rb1 Qe4 Ra4 Rg2 Rc4 Qee2 Rcc7 Rd5 Rf7 Rd7 Rf6 Qh6+
5BbK/pq6/2Bbn3/P1P1q3/R2p1R1R/rR3qq1/2B1p3/k1B1Nn1R w - - 0 1 legal: proof: d4 f5 b4 c5 bxc5 e5 dxe5 Qb6 Nc3 Qf6 Nb1 Qd8 e4 fxe4 a4 b5 a5 Nc6 Qd4 Nb8 Qa4 bxa4 f4 h6 g4 Na6 g5 Qf6 f5 Qd8 Nd2 h5 Nc4 Rh6 Ne3 Rf6 Ng4 hxg4 gxf6 Rb8 Nh3 Rb3 Ng1 Rh3 Kd2 Rh4 Ke1 Rh8 Kd2 Kf7 Ke3 d5 Kd4 g5 h4 e3 c4 e2 h5 a3 h6 a2 c6 g3 c7 g4 h7 g2 c5 g3 Be3 Be6 c8B Ne7 Bd2 Qc7 Bc1 Qb7 Nf3 Nc7 Ne1 Rg8 h8R g1Q+ Be3 g2 R8h4 Qh2 Bc1 Qh3 Bd7 Rg5 Ba4 Qf3 Bc2 Rg3 Rb1 a1Q+ Rb2 Ke8 f7+ Kd7 f6 Kc6 Bh6 Qa2 Rb3 g1Q+ Be3 Qh2 Bg2 Qa3 Bc1 Rh3 Rb4 Qfg3 Ra4 Kb5 Bf3 Bd7 Bfe4 Qaf3 e6 Be8 Bf4 Bc6 Ke5 Nf5 e7 d4 e8R Ne3 Rb8 Ne6 Bd5 Be7 f8R Nf1 f7 Bd6+ Kf6 Bd7 Rfe8 Bc6 f8B Bd7 Re7 Bc6 Bde4 Bd5 Rg7 Ba2 Rgg4 Bb3 Kg6 Bc4 Bc1 Bb3 Ra3 Kc4 Ra4+ Kc3 Bc6 Qe5 Kh6 Qhg3 Rf4 Bd5 Bg7 Ba2 Kh7 Bd5 Kh8 Ba2 Bd2+ Kb2 Bc1+ Ka1 Rb4 Bd5 Rc4 Qe7 Rb3 Qb7 Rcb4 Nf8 Rc4 Bg8 Rcb4 Ne6 Rc4 Qed5 Bf8 Qe5+ Rf6 Qfg4 Rb5 Qg2 Ra4+ Ra3 Rb6 Q2g3 Rb3 Qee4 Rf7 Qg4f3 Rff4 Qe5+
bRq1R3/r5n1/2rNNP2/R2K1R1q/1R1NQ3/1Pb2n2/2bn1bkr/2N2q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Bb7 b3 Bc8 Bh3 Bb7 Bb2 Bc8 f5 h6 Be5 h5 Bf4 gxf4 g5 Nh6 Bg4 hxg4 Ra4 Ng8 Ra3 Rh6 Ra1 Rh8 Ke2 Kd7 h4 Kd6 d4 e5 f6 c5 h5 a5 h6 c4 g6 c3 h7 f3+ Ke3 c2 g7 c1R b6 f2 b7 f1B Rh2 g3 Rha2 a4 Qe1 g2 Qd2 a3 Qc2 Ne7 g8R Bd3 Qf2 Ra7 Rc2 a2 Rg3 Na6 b8R Nc5 Qe1 Bb7 Rd2 Qc8 Nh3 g1N Rc2 Ba8 Na3 Nf3 Rc4 Bc2 Rcb4 Bh6+ Rg5 Nf5+ Kf2 Ng7 Rf5 Bg5 Nf4 Bh4+ Ke3 Bg3 Nd3 Bf2+ Ke2 e3 Nc4+ Kc7 d6+ Kc6 d7 Kd5 d8N Ne4 Nc6 Ned2 Qh1 Ke4 d5 Ne6 d6 Ng7 Rb1 a1Q d7 Qa5 d8N Qb5 Nd4 Qe8 Ndb2 Qf7 Ra1 Qh5 Rg5 Kf4 Nd6 e4 Rf5+ Kg3 Qe1 Kg2 Nd3 Bb1 Ra3 Rc6 N8e6 Bc2 Raa5 Bb1 Kd1 Bc2+ Kc1 e2 Kb2 e3 Nc1 Kg3 Qh1 e1B Qh4+ Kg2 Qe4 e2 Ka3 Nc4+ Ka4 Bc3 Kb5 Re8 h8R e1Q Rg8 Rd8 Re8 Qf1 Re7 Rh8 Re8 Rh7 Nc7 Rb6+ Kc5 Rc6+ Kd5 Nd2 Nce6 Qg6 Rc4 Rh2 Rcb4 Qh5
1rRR4/3R3K/R2b2r1/1qrrQ3/2b2PNP/1Nn3k1/r1b1r1N1/nNR3n1 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f5 axb5 fxe4 Nf3 g4 Ng1 g3 f3 h5 b3 Qd7 Bb2 Na6 Ke2 Nb8 Bd4 Bh6 Bf2 gxf2 g4 Qd6 g5 Bf8 Bh3 Qd8 Bg4 hxg4 Ke3 Kf7 Kf4 Kg6 d4 Kh5 h4 f1B g6 c5 b6 e5+ Kg3 a5 b4 c4 f4 e3 g7 a4 b5 a3 d6 c3 d7 e2 d5 e1R b7 e4 d6 a2 b6 c2 Rh3 c1R Rh2 e3 Ne2 Qg5 d8R Nd7 b8N Ne5 d7 Rc5 b7 Nf3 Qd5 Rd1 Ng1 e2 Rh1 e1R Na6 Re2 b8R Ne7 Qe5 Nd5 g8N Bd6 Nh6 Nc3 Rb7 Re8 Rc7 Bb7 Rdc8 Be4 d8R Bc2 Rf7 Rdd5 Rfd7 Ne1 Nf3 Rb8 Na3 Rg8 Nb1 Rg6 Rg1 Bd3 Rh1 Nc2 Ne1 Bc4 Rg1 Bg2 Rh1 Be4 Ng2 Bed3 Rc1 Be4 Kh2 g3+ Kh3 Bed3 Ng4 Bf5 Ne3 g2 Kg3 g1N Ng2 Rc6 Nc5 Rc7 Nb3 Rcc5 Na3 Be4 Rab1 a1R Rb2 Rg7 Nb1 Rg6 Ra2 Bf5 Raa7 Ra2 Ra6 Na1 Qe7 Rg7 Qf6 Qg6 Qe5 Nh3 Kf3 Bb5 Rdc7 Qe8 N4e3 Bc4 Rf7 Qb5 Rfd7 Kg6 Kg3 Bc2 Kg4 Ng1 Ra4 Rd3 Ra6 Kh6+ Kf5 Rdd5+ Kf6 Rg6+ Kf7 Re6 Kg8 Rg6+ Qg7+ Kh5 Kh7 Be4 Qe5+ Bf5 Nf1 Kg4 Nh2+ Kg3 Ng4 Bc2
1N5n/q2RQ3/1P3r1Q/N1pn1Kb1/R2N1NNr/2b3N1/3rrP1r/3n1bk1 w - - 0 1 legal: proof: h4 f5 e4 fxe4 c4 g5 a4 d5 cxd5 b5 axb5 Qd7 h5 Qd6 b3 Qd8 g4 Bd7 Bh3 Kf7 Bb2 Nf6 Be5 Ng8 Bg3 Nf6 Bh4 gxh4 g5 Ke8 g6 Bc8 g7 Ng8 Bf5 Nf6 Bg6+ hxg6 Rh3 Ng8 Rh2 Bd7 Rh1 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 a5 b6 e5+ Ke3 Kf5 b7 h3 d6 g5 h6 h2 d5 a4 b4 g4 d7 g3 b5 g2 d6 a3 h7 a2 b6 Nf6 g8N Qc7 d8N Bh6+ Ke2 Kg4 d7 e3 Kd3+ e2 Nf7 e4+ Kc3 e3 Kd3 Nd5 Ke4 Nc6 d8N Nce7 b8N Bg5 Ne6 Ba6 Nd6 Qa7 Nc6 Rd8 Qd2 e1R Na3 e2 Qa5 Ng6 Rd1 a1B Nab5 Bc3 Nbd4 Rf8 Nc4 Rf6 Rd2 Rd1 Nb8 e1R+ Nge2 Kh3 Nh6 g1N Ng4 Kg2 Nf4+ Kf1 Rd3 Rd2 Qa4 Bb5 Na5 Ba6 Qe8 Bc4 Re3 Ba6 Qe7 Bc4 Nfe6 Kg2 Ng3 Ne2 Rf1 h1R Rd3 Rh4 Rh1 Bb5 Rh3 Kg1 Nf4 Rg8 Rh2 Nh8 Ke5 Rgg6 Ke4 Rgh6 Rh3 Ng6 h8Q R6h5 Qh6 Nh8 Nh1 Bc4 Rhe3 Rh2 Ng3 R5h4 Ke5 Ba1 Ra3 Nec3 Ra4 Nd1 Ke4 Be2 Rd3 Bc3 Ke5 Rg6 Ke4 Bf1+ Kf5 Ree2 Ndc6 Nb4 Rd7 Nd5 Nd4 Rf6+
2rNnqB1/1Bq1N1BB/1r1RP2q/bbPp4/1q5r/7q/2N3K1/1B1kNn2 w - - 0 1 legal: proof: b4 a5 g4 axb4 d4 c5 dxc5 h5 a4 g5 f4 e5 Qd4 Qe7 Ra3 Qd8 Rg3 Bd6 fxe5 Be7 Qf4 gxf4 g5 Bf8 Rg4 hxg4 Kf2 Ke7 h4 Ke6 e4 f5 c4 d5 a5 b5 c6 b3 a6 g3+ Kf3 b4 a7 g2 g6 b2 h5 b3 c7 Nh6 g7 Bd7 g8N Na6 c8B Nc7 Nd2 b1R Kf2 b2 Ne2 f3 Ne7 f4 c5 Nf5 h6 Ng3 h7 Bh6 Ba6 Rc8 a8B Bb5 B8b7 Ne8 Rh4 Bg5 Rh6+ Bf6 Kg1 f2+ Kh2 Qd7 Nf3 Qc7 Ne1 g1Q+ Kh3 f3 Nd4+ Kd7 Ndc2 Ke6 Be2 Nf1 Bd3 Qg7 Bd2 Qg6 Bc3 Bg5 Bd4 Bd2 Bc3 Qf6 Bd4 Ba5 Bc3 Rg8 h8N Rg4 Nf7 Qg6 Rh4 Qh6 Bd4 Bc6 Bac4 Bb5 Ba2 Rd1 Bc3 b1Q Ba1 Qb4 Bb1 Ne3 Kh2 f1Q Bc3 f2 Nd8+ Kd7 Rh5 Rh4+ Kg3 Rd2 Rf5 Qh1 Rf6 f1Q Rg6 Qff8 Bb2 Qc6 e6+ Kc7 e5 Rf2 Ba1 Rf6 Bf5 Nf1+ Kf2 Qh3 Kg1 Kb8 Bb2 Ka7 Be4 Qha3 Kg2 Qc7 Ba1 Rf3 Rf6 Rb3 Bh7 Rb2 Ng8 Qac3 e7 Rb3 Rd6 Qh3+ Kg1 Rb2 e6 Rb3 Bg7 Rb2 Bc6 Ka6 Ba8+ Bc6 Bb7+ Kb5 Rd7 Kc4 Rd6 Q3e3+ Kg2 Kb3 Ba6 Bb5 Bb7 Nf6 e8B Qh3+ Kg1 Kc3 Bf7 Kd2 Ne7 Ne8 Bfg8 Kd1 Nd4 Bd3 Ng2 Qc4 Nc2 Rb6 Nge1 Be2 Ng6 Qb4 Ne7 Qhc3 Kg2 Bb5 Rd7 Qd3 Rd6 Qh3+
1NK4n/NqP1qB2/1r2np2/k1N1Prn1/1r1nB2Q/6B1/Bbb5/2bN1N2 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 g5 axb5 e5 fxe5 Nc6 Ra3 Nb8 h4 Nc6 g4 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Rh2 Rh6 Rg2 Rh8 Rg4 hxg4 Kd2 d5 Kd3 Kd7 c4 Kc7 e4 Kb6 h5 a5 g6 f6 g7 g3 h6 g2 h7 f3 e6 f2 e7 a4 e8B a3 e5 a2 Nc3 a1B Qh5 Bd7 Bf7 Nh6 g8B Nc6 Nd1 Rb8 Nf3 g1N Bg2 f1R Nd2 Ne2 Be4 Rf5 Qh4 Bb2 Nf1 Qe7 Bf4 Nd8 Bg3 Ne6 c5+ Kc7 c6 Kb6 Bg6 Nf7 c7 Bh6 Bh5 Bhc1 Bg6 Kb7 b6 Ka6 b7 Ba4 b5+ Ka5 b6 Bb5+ Kc2 d3+ Kb3 d4 Bh5 Be8 Kc4 d2 Kd5 Ba4 Bg6 Bb3+ Kc6 d3 Bh5 Bc2 Bg6 Rf8 b8N N2d4+ Kb7 Rd8 Bh5 Rd6 Kc8 Rc6 b7 Rb6 Na6 Rb4 Nf2 d1N b8N d2 Nc5 Nc3 Bg6 d1Q Bh5 Qe2 Nd1 Qb5 Bg6 Nce2 Bh5 Nfg5 Bf7 Nf8 Ba2 Nde6 Bf7 Rg8 h8N N2d4 Ng6 Qb6 Nf4 Qc6 Nd5 Ng6+ Be8 Qb6 N5c3 Nh8 Nb5 Qc6 Na7 Rb6 Bh2 Rg6 Bf7 Rh6 Qh3 Rh4 Bg3 Nb5 Bh1 Rb4 Be4 Nbd4 Qh4 Qb7+
RRB3qn/P1rq2qn/1b2Rrk1/5rBR/b1BN1q2/2p5/2PnB3/4R1K1 w - - 0 1 legal: proof: e4 a5 d4 g5 b4 axb4 f4 f5 exf5 e5 dxe5 Bh6 f6 Bf8 g4 Na6 f5 Nb8 Nc3 h6 Nce2 h5 Nf4 gxf4 g5 Ra3 Qf3 Ra8 Qg4 hxg4 Kf2 Kf7 a4 b5 h4 c5 h5 d5 a5 g3+ Kg2 c4 h6 c3 a6 f3+ Kh3 f2 Kg2 b3 a7 b4 h7 d4 Be3 b2 Bf4 b1R Rh5 b3 Bc1 b2 Bd2 d3 Rh2 Nd7 Ra6 Nh6 Rh5 Bc5 Nf3 Qg8 Be2 Bb6 Nd4 Rf1 Ra1 Ba6 Re1 b1N Be3 d2 e6+ Kf8 g6 d1Q f7 Kg7 f8R Rc8 e7 Nf6 e8B Bb5 Bg5 Ba4 B8b5 Nf7 Bd7 Rc7 Ra8 Qd3 Re8 Nd2 Re6 Qb5 Bc8 Qd7 Kh3 g2 Kg3 Qgd8 Kh2 Rf8 h8R Nh7 Re7 Re8 Re6 Re7 Re8 Nh8 Rf8 Rf7 Rfe8 Rf8 f6+ Kg8 g7 Kf7 g8B+ Kg6 f7+ Qf6 Re3 Qg7 Rd8 Rg1 Re5 f1Q Re6+ Qff6 Rde8 Rf1 Rd8 Rf5 Kg1 Re8 f8R Re7 Re4 Re6 Rfe8 Rd6 Bgc4 Qff8 R4e7 Rdf6 Re6 Qgg8 B8a6 Qfg7 Ra8 Q8f8 Reb8 Qff7 Kh2 Qgg8 Bc8 g1Q+ Kh3 Qf1+ Kh2 Qf4+ Kg1 Qfg7
KRr3B1/5Rp1/2N1p3/RBRnr1PB/1B3q1P/2b1n2q/1k5b/2rqB1b1 w - - 0 1 legal: proof: e4 b5 g4 h5 a4 f5 axb5 fxe4 b6 c6 g5 c5 Qg4 hxg4 c4 Bb7 b4 Qc8 b5 Qc6 Na3 Qc7 Nc2 Na6 Nb4 cxb4 d3 Bd5 c5 Bc4 dxc4 Nb8 Ra6 Qc8 Ra1 Qd8 Kd2 Kf7 Ke3 Ke6 Kd4 d5 h4 a5 f4 g3 b7 a4 c6 e3 Kc5 d4 f5+ Ke5 c7 a3 Kb6 d3 f6 Kd4 c5 Kc3 c6 b3 f7 e2 Rh2 e1B Rd2 a2 Ba3 b2 Nf3 b1R Ne5 Qd7 c8B g2 c7 Nf6 Nc6 Qh3 Be6 Rc1 c8B Na6 b8B g1B+ Kb7 Nd5 b6 Nab4 Bg3 Nc2 Bb4+ Kb2 Bg4 Bh2 Bh5 Ra5 Be6 Rb5 Re2 d2 Ka8 d1Q b7 Bc3 Re5 Nce3 b8R Qd4 Bd3 Qf4 Be1 Rc5 Bb5 Rg8 Bf5 e6 Bh7 Bd6 f8R Bg1 Rf7 Rc8 Ne7 Qe4 Ref5 Bdh2 Bg8 Qf4 Nc6 Nf6 Ra7 Re5 Ra5 Nfd5 Rf7 Rc2 Rd1 a1Q Rd4 Qb1 Rc4 Qd1 Rc5 Rc1
R1r1br1N/1Pn3pN/3k4/qRb1r1b1/7P/r5RR/1N3p1n/1KR2nNQ w - - 0 1 legal: proof: g4 e5 f4 d5 a4 h5 c4 hxg4 cxd5 b5 axb5 Bd7 b3 Be6 f5 Bc8 e4 Nd7 b6 Bc5 Bb5 Ba6 Ba3 Be7 Bd6 Bf8 Bc6 Bd3 Bb7 Ba6 Bc8 Nb8 Be6 Qg5 Bc5 Kd8 Be3 Bc8 Bf4 exf4 e5 Qf6 Bd7 Ke7 e6 Kd6 Be8 Qd8 e7 Rh4 Bd7 Rh8 Be6 fxe6 Ra2 Kd7 Ra6 Rh4 Ra1 Rh8 e8N a5 h4 c5 d4 f3 Kd2 e5 Kc2 f2 b7 g3 f6 a4 b4 g2 f7 a3 b5 e4 b6 a2 d6 e3 d5 e2 Nf3 g1N Nc3 e1R Na4 c4 Rh3 c3 Nb2 Ne2 Ng1 Nf6 Rc1 Na6 b8R a1R b7 Be7 f8R Ra3 Kb1 Ng4 Rff3 Rf8 Rfg3 Qa5 Nf6+ Kd8 d7 Kc7 d8N Nh2 Qa4 Bc5 Nh7 Kd6 Qe4 Bd7 Qh1 Nc7 Rc8 Be8 Nf7+ Ke7 Rd8 Rc8 d6+ Ke6 d7 Ke7 Rf3 Ng3 Nh8 Ngf1 Re3+ Kd6 Reg3 Bf7 Re8 Bg6+ Re4 Be8 Ra4 Re5 d8R+ Ke7 Rdd4 Ke6 Rdb4 Kd6 Rb5 Rb3 Ka2 c2 Re1 c1B Kb1 Bg5 Rc1 Qc3 Raa5 Ra3 Ra8 Qa5
2q1Q1nk/1n1rb2P/1pQ3K1/1r3R2/RpRR4/3B1R2/Pr1r1B1r/qR5b w - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 Be6 f5 Bd7 Nc3 Bc8 Nce2 h6 Nf4 gxf4 Nf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 Ke2 Kf7 Kd3 e5 Ke4 c5 h4 g3 d4 c4 d6 g2 g6+ Ke8 g7 Kf7 d5 g1Q h5 c3 d7 c2 h6 f3 d6 f2 Be3 c1R Qf3 b6 Rb1 Rc2 Bd3 f1R Rh4 Rb2 Bf2 Ra7 h7 Nc6 Rf4 Bb7 Rg4 Qb8 d8R Qc8 d7 Be7 Re8 Ba8 d8R Na5+ Rd5 Nb7 Rd4 Rd1 Red8 Rc1 R8d5 Rcc2 Ra5 Rd2 Ra4 Ra5 Rc4 Rb5 Qg2 Nh6 g8R Qd1 R8g5 Rd8 Rf4 Kf8 f7 Ng8 Rgg4 Rd6 Rf3 Rd7 Rgf4 Qf1 Qg6 Qd1 Qc6 Kg7 f8Q+ Kh8 f6 Qc1 Kf5 e4+ Kg6 e3 f7 e2 Rh4 e1R Qe8 Rh1 f8R Rh2 Rhd4 Qc3 Rh1 Qc1 R8f5 Qa1 Rb1 Na5 Qe4 Bd5 Qe6 Nb7 Qc6 Be4 Rf4 Bg2 Rf3 Bh1
2RR2bR/R6p/b2bQR1K/k1Nq2PQ/1N3b1b/3p1n2/2R1r2P/n1q2q2 w - - 0 1 legal: proof: d4 a5 e4 d5 a4 b5 axb5 c5 Be2 cxd4 Bg4 d3 Bf3 d4 Be2 Ra7 Bf1 Rd7 f4 f6 f5 Rd6 Bf4 Rd5 exd5 Kd7 Be2 Ke8 Be5 fxe5 f6 g6 Bg4 Kf7 Be6+ Ke8 Bf5 gxf5 Kd2 Kd7 b4 Kc7 c4 Kb6 g4 a4 g5 a3 f7 e4 d6 e5 d7 f4 Qe2 e3+ Kd1 a2 Qh5 d2 Ke2 e4 Nc3 Nh6 Nh3 Ng4 Rhc1 Ne5 Rc2 Nbc6 Nf2 Bd6 f8R Nf3 Nd3 Ba6 Rf6 Na5 Nc5 Qa8 d8R Qd5 Rc8 Re8 Rd8 Re7 Rc8 Nb3 Rd8 Kc7 b6+ Kc6 b7 Kb6 b5 Ka5 b8Q d1B+ Kf1 d3 Kg2 e2 Kh3 e1B Kg4 e3 b6 e2 b7 Re4 Qc8 Bd2 b8R e1B Qe6 Re2 Rh8 Bh4 Rbd8 Qa8 Nd5 Bc1 Nb4 Qd5 Rb1 a1Q Rbb2 Qa3 Ra2 Na1 Na4 Bf8 c5 Bd6 c6 Be3 c7 Qc1 c8R Bd2 R2c6 Bb3 Nc5+ Kb5 Rc2 Nd4 Qe5 f3 R8c7 f2 Qhe8 f1Q Kh5 Qe6 Kh6 Ka5 Ra7 Bf4 Qh5 Nf3 Rcc8 Qf5 Qee8 Bg8 Qe6 Qd5
B5r1/N2KN3/q1R2PR1/n1pN1RNr/3rbRq1/2b1p1R1/2Prkr2/6r1 w - - 0 1 legal: proof: f4 d5 e4 dxe4 g4 f5 a4 b5 Qf3 e3 Qe4 fxe4 axb5 Qd4 Bg2 Qd6 Bf1 Qd8 f5 h6 g5 Qd3 b3 Qd5 Bb2 Nd7 Be5 Qd4 Bf4 Ndf6 gxf6 Qd8 Bg5 hxg5 Ke2 Kf7 d4 e5 h4 c5 b6 a5 b7 g4 b8N g5 d5 g3 h5 g2 d6 a4 b4 g4 b5 g3 h6 a3 d7 a2 h7 Bb7 b6 Bg7 Rh5 Qc8 d8R Ra4 Rd1 Ne7 Nh3 g1R Nc3 g2 Nd5 Nc6 Rd3 Na5 Nc6 Rd4 Na7 Qg8 Rad1 a1Q R1d2 Bc6 b7 Rh1 b8R g1R Ra3 Qc8 Rb6 Rg8 h8R Qa6+ Rad3 Qa4 R8h6 Bb7 Rg6 Bh8 Ke1 e2 Kf2 e1R Rc6 e3+ Kf3 e2 Bg2 e4+ Kf4 Ref1+ Ke5 e1R Kd6 Rf2 Rdg3 e3 Kd7 Ree2 Rd3 Rd2 Ng5+ Kf8 f7 Rh3 Re6 Kg7 f8N Ba8 Rf6 Rh2 Rhh6 Rh5 Ng6 Q4c4 Rb3 Qe2 Rf8 Qg4 Ne7 Bb7 Rhe6 Ba8 Re4 Bb7 Rf4 Ba8 Ne6+ Kh6 Rbb6 Bg7 Nd8+ Kg5 Ne6+ Kh4 Rf6 Bh8 Rg6 Be5 f6 Bb7 Rf5 Ba8 Ng5 Bb7 Rf3 Ba8 Rf4 Kg3 Rb4 Bb7 Be4 Ba8 Rf3+ Kg2 Rc4 Kf1 Rg3 Ke2 Bg2 Rdf4 Re4 Bc3 Rb4 Rfd4 Bh1 R4d3 Rf4 Rd4 Rd6 Nc4 Nb6 Bd5 Bg2 Bf7 Ba8 Bd5 Rc6 Be4+ Nbd5 Na5
2NR4/nRK1N2r/bqp3P1/2q1BqN1/4Nbnp/1kbR2b1/2q1N2P/4R3 w - - 0 1 legal: proof: f4 b5 e4 f5 d4 a5 a4 d5 axb5 g6 c4 Nc6 c5 Nb8 Bc4 dxc4 d5 Ra6 Qf3 fxe4 f5 Rd6 cxd6 Na6 f6 Nb8 Qf5 gxf5 Ke2 Kf7 Ke3 h5 Kf4 e5+ Kg3 a4 b4 c3 d7 a3 b6 e3 d6 Ke6 f7 Kd5 b5 Kc4 b7 e4 Kf4 c2 Ke5 e2 g4 e1Q g5 a2 b6 e3 g6 f4 Ne2 h4 Nbc3 f3 Bb2 c1Q Ne4 f2 Rb1 Qed2 Re1 Bh6 f8N f1Q Ne6 a1B N6g5 Qdc2 Ke6 Qff8 Be5 Nc6 b8N Na7 b7 Bc3 Nc6 Nf6 b8N Ba6 Ne7 c6 Rb7 Qb6 d8R Rh7 d7 Kb3 Kd6 Qf7 Nc8 Ng4 Ne7 Qb5 Kc7 Qf5 Rg8 Qa3 d8R Qc5 Rd3 Qbb4 Rgd8 Qbb5 Nf3 Bf4 Nd7 Qbb4 Nb6 Qbb5 Neg1 e2 Nfg5 Qbb4 Nc8 Qbb5 Ra1 e1B Ne2 Beg3 Re1 Qbb6+
2BKbk2/8/1PbbBbr1/2N1QN2/p1p1nq1p/b5Nn/1BB1N1Pr/3N4 w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 e5 d4 g5 h4 Be6 hxg5 Bh3 b4 Bc8 c4 dxc4 d5 Bb7 Rh4 Bc8 Ra2 f6 Rd2 f5 Rd4 exd4 e5 Ba6 Rg4 Bc8 Re4 fxe4 Kd2 a5 f4 c5 e6 h5 e7 h4 b6 d3 Kc3 e3 d6 e2 d7+ Kf7 e8B+ Ke7 b5 a4 b7 d2 g6 e1B f5 Rh6 f6+ Ke6 f7 Ke7 b6 Ra6 g7 Nf6 g8B Qc7 d8N Bd7 Ne6 Ng4 Nf4 Bg3 Nh5 Bc6 Ne2 Qf4 Bb2 Ra8 Qe1 d1B Bd7 Rg6 Bc8 Nd7 b8N Nf2 Na6 Nh3 Bh7 Bf2 Nhg3 Nf6 Bg8 Bg7 f8N Bg1 Bh7 Bh2 Ne6 Ke8 N6d4 Kf8 Be6 Rd8 Ndf5 Bc2 Bc8 Rd1 Bg8 Be8 Bge6 Be4 Ng1 Qe3+ Bd3 Qf4 Bc2 B4c6 Qe5 Rc1 N1e2 Rh1 Nd2 Bh8 Ndf1 Bg7 N1e3 Bh8 Kd2 c3+ Kd3 Ne4 Nd1 c4+ Kd4 Bf6 Nc5 Bb5 Bb3 c2 Kd5 c1B Bc2 Bbd7 Bc3 Ba3 Bb2 Nd2 Kd6 Ne4+ Kc7 Bc6 Nf1 Bg1 N1g3 Rh2 Bd5 Bd4 Bf7 Be7 Bfe6 Bd6+ Kd8 Bc3 Qd5 Bh8 Qe5 Bf6+
k2nK1R1/2Rbb1B1/b1p2B2/2P1qn1B/1qp1RqR1/1P1bQrp1/4B3/6R1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 f3 c5 Nh6 Na3 Ng8 Nc4 dxc4 Bh3 h5 Bf1 f5 Nh3 a5 Nf2 f4 Ra4 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Bd7 Ng4 hxg4 Bg2 Be6 Bf1 Bc8 Kf2 Kd7 h4 g5 e4 a4 d4 a3 b6 Kc6 h5 Kb7 f6 a2 h6 c6 d5 Be7 b3 Rh7 f7 Ka8 f8R Na6 b7+ Ka7 b8R Nf6 e5 Rg7 d6 Qa5 e6 Ne8 d7 Nd6 d8R Nf5 h7 Nc7 h8B Rf7 Qd2 Qb4 Bcb2 Ba6 Re1 a1Q Bbg7 Qe5 Be2 Rf6 Rg8 g3+ Kf1 g4 Rbc8 g2+ Kf2 Kb7 Rd4 Ka7 Re4 Kb7 Reg1 g3+ Ke1 Ka7 Rh4 f2+ Kd1 f1B Kc2 f3 Qe3 f2 Rhg4 Rf8 Bf6 Qf4 Bhg7 Qe5 Rb8 Qf4 Rb7+ Ka8 Kb2 Ne8 Kc2 Ned6 Rc7 Nb7 Kb2 Nd8 Kc2 Qa3 Kc3 Qa1+ Kb4 Qae5 Ka5 Rf7 Kb6 Rf8 Bd1 Bd3 Bf3 f1B Be2 Bd6 e7 Rf7 e8B Be7 Rh1 Rf8 Bg6 g1Q Bh5 Qgf2 Rg1 Bh3 Rd7 Qe1 Rb7 Nd6 Kc7 Qb4 Kd7 Nf5 Rc7 Nd4 Bg5 Qff6 Bh4 Rf7 Ke8 Qh6 Rg5 Rf3 Rg6 Qhf4 Bhf6 Bhc8 Rg5 Nf5 Rg4 Bd7+
1qn3nB/3pr3/1nPQr1N1/p2BN1k1/B1rP2p1/N4bB1/n3N3/1Nr1K3 w - - 0 1 legal: proof: f4 c5 a4 e5 b4 exf4 b5 b6 g3 Qc7 Ra3 Qd8 Rb3 Bb7 a5 Bc8 Rb4 cxb4 axb6 Bc5 Ba3 Be7 Bc1 Bf8 h4 f5 Rh2 h5 Rf2 f3 Rg2 Bd6 Kf2 Be5 Ke3 f2 Kd3 f4 Rh2 f3 Rg2 Bf4 gxf4 Qg5 Rg3 Qd8 Rg4 hxg4 c4 Ke7 e4 Kf6 f5 g5 h5 a5 h6 b3 b7 g3 e5+ Kf7 e6+ Kf6 b6 g2 h7 b2 c5 g4 e7 Nc6 b8N Ra7 e8B Ra6 b7 Rb6 Bf7 Nce7 Bd5 Qc7 Ne2 g1N Nc6 Kg5 b8N Nh3 f6 Bb7 f7 Nc8 Nb4 Re6 N8c6 Qb8 f8N Nf4+ Kc2 Ba8 Ne5 Re7 Bg2 f1R Nfg6 f2 d3 Bc6 Kd2 Re1 Nc2 f1R Nca3 Rh1 Bb3 Nd5 Ba4 Ndb6 Bd5 Rhf1 d4 Rf6 Qb3 Rfe6 Qb5 Bb7 Qc6 Rg1 Qd6 Rf1 Bdb3 Bf3 Bd5 Rg1 Ke3 Rd1 Bd2 Rc1 Be1 Rc4 Bg3 Rc1 Kf2 Rc4 Nd2 b1N c6 Nc3 Ndb1 Na2 Ke1 Nh6 Kd1 Rhe8 h8B Ng8 Kd2 Rf8 Ke1 Rf4 Nc2 Re4 Nca3 Re3 Bg7 Rec3 Bh8 Rc1+
8/2q2BPb/4bp2/q1nq2RK/B1RP2r1/1QRrn2k/Q2B2Rq/2B3q1 w - - 0 1 legal: proof: e4 a5 f4 g5 d4 b5 e5 Ra7 b4 axb4 Nc3 Ra6 d5 Re6 dxe6 d6 Ne4 d5 Nd6+ exd6 g4 d4 c3 d5 Ne2 d3 Nd4 d2+ Kf2 Bg7 Nc2 h5 Ne3 d4 fxg5 d3 g6 Bf8 g5 Bd6 Ng4 Bc5+ Ne3 Bd4 cxd4 Qd7 Ng4 hxg4 Kg1 Qe7 Kf2 Qd8 Kg3 Ke7 a4 c5 h4 f6 g7 b3 h5 b4 Kh4 c4 h6 g3 h7 c3 g6 b2 a5 b1B a6 c2 a7 g2 a8B g1Q Be2 b3 Ra4 b2 Bc6 Nh6 g8R Nf5+ Kh5 Nd7 Rh2 Ne3 Rg2 Qa5 Rc4 Nc5 Ba4 Bd7 Rc8 Rg8 h8B Rg7 Bg4 Qh2+ Bh3 Rg8 Qe2 d1R Bg7 d2 Bh6 Rf1 Qd3 Rf3 Qb3 d1Q Bd2 c1Q g7 Bh7 Rc6 b1Q Qa2 Qdg1 Rc7 Ke8 e7 Kf7 e8R Rh8 Rd8 Qb7 e6+ Ke7 Rdc8 Kd6 e7 Be6 e8Q Qd5+ Rg5 Rf4 Qf7 Rg4 Rb7 Qcc3 Rb2 Qc7 Rc2 Q3a5 R2c3 Re8 Rb8 Rc8 Rb2 Rb8 Bc1 Rb3 Rg2 Ra3 Rcc2 Rd3 R2c3 Qde5 Bd2 Kd5 Qg8 Ke4 Qb8 Qd5 Qbb3 Qhe5 Bc1 Kf4 Bd2 Rg3 Bf5 Rg4 Bg6 Qed6 Bf7 Q6e5 Rh2 Kg3 Rg2+ Kh3 Bc1 Qeh2 Re5 Nc2 Bhd2 Ne3 Rf5 Qc8 Rg5 Qcc7
3N1n1Q/4r1N1/p2q1KP1/8/r2NN3/2Pn3n/nQRR4/nQb1nQqk w - - 0 1 legal: proof: d4 h5 f4 g5 g4 d6 a4 a6 a5 Nc6 f5 Na7 e4 b5 axb6 c5 b7 cxd4 bxc8Q f6 e5 Rb8 Bd2 Rb6 Qa8 Rc6 Bf4 Rc3 Be2 Rc6 exf6 gxf4 g5 Qc8 Bf3 Qd8 Bg4 hxg4 Ke2 Kf7 Kd3 e5 Ke4 d5+ Kd3 g3 h4 f3 b4 g2 b5 f2 c3 f1Q+ Qe2 e4+ Kc2 e3 Kd3 Re6 h5 Ba3 h6 Qd6 h7 Nc6 b6 Nge7 b7 Bc1 b8Q Ng6 Qc8 Re7 Ra2 Nf8 Nf3 g1N Qab7 Nh3 Rb2 Qg1 Qf1 e2 Nbd2 Rg8 Ne4 e1N+ Ke2 Nb4 h8Q Rg6 Qcb8 Na2 Rc2 Rg7 Rh2 d3+ Kd1 d4 Rhd2 Rh7 Qb1 Rh4 Q8b2 Rg4 Rg2 d2 Ke2 d1N g6+ Ke8 f7+ Kd7 f6 Kc6 Rh2 Ndf2 Rd2 d3+ Ke3 Kd5 Nd4 Nc2+ Kf3 Na1 Rc2 d2 Ke3 Nh7 f8N d1N+ Kf3 Rh4 f7 Ne3 Nfe6 Nf8 Ng7 Nd3 Rhg2 Ke5 Rgd2 Ng2 Kg3 Nh7 f8N Nge1+ Qg2 Rf4 Nfe6 Nf8 Nd8 Rf6 Kh4 Kf4 Kh5 Rfe6 Nf2 Re4 Qf1 Kg3 Kh6 Kh2 Kh5 Re3 Ne4+ Kh1 Kh4 Rb7 Kh5 Rb4 Kh6 Ra4 Kh5 Ng2 Kg4 Nge1+ Kf5 Qh2 Kf6 Re2 Nd6 Re7 Ne4 Qd6+
1nR1r3/1Q2N3/1bb4K/3n4/2N2kP1/1Qn1pnrQ/2PNQN1n/1Rnn4 w - - 0 1 legal: proof: d4 a5 b4 c5 a4 cxd4 e4 f5 exf5 b6 b5 Ba6 Ba3 Bc8 Bb4 axb4 a5 Qc7 axb6 Qd8 g4 g6 h4 Ba6 f4 Bh6 f6 Qc7 f5 Qc5 f7+ Kd8 f6 Bc8 Bd3 Qg5 hxg5 Bf8 Bf5 gxf5 Ke2 d5 Kf3 Kd7 Kf4 Kd6 g6 e5+ Kg5 h5 b7 d3 g7 f4 b6 d4 Ra5 f3 Ra6 h4 Qf1 e4 Ra7 Ke5 Rh3 d2 Qg2 d1N Qf1 d3 Ra1 f2 Qe2 f1N Rg3 h3 Rg2 d2 Ra5+ Bc5 f8Q e3 f7 h2 Nh3 h1N Rg1 b3 Nf2 Ne7 g8N b2 Qh6 Bd7 f8N Nd5 Qh3 Bc6 Ne7 N1c3 Kg6 d1N Nd2 b1N Nd7+ Kf4 Ne5 Nh2 Nec4 Bd4 Rc5 Ng3 Rh1 Re8 Kh6 Ra1 Rg1 Bd7 Rc8 Bc6 Qd3 Nge2 Rf1 Nc1 Qe2 Ne4 Rg1 Ng5 Rh1 Ngf3 Rf1 Na6 b8Q+ Ndc7 b7 Bb6 Qa8 Nbc3 b8Q Rb1 Qbb7 Nb8 Qa4 N7d5 Qb3 Nb2 Qh4 Ncd3 Rh1 Rg1 Qh3 Rg3 Rc1 Nbd1 Rb1 Nc1
KB1Q4/np4Qq/8/rPk1r3/q3RRQB/4P3/2rQpR1p/1qb1Rb2 w - - 0 1 legal: proof: c4 g5 b4 d5 cxd5 a6 h4 Qd6 e3 Qd8 hxg5 a5 Bc4 a4 Bb3 axb3 a4 Bf5 a5 Bc8 d6 e5 a6 f6 a7 Nh6 Nf3 Ng8 Nd4 Nc6 Nc3 f5 Nce2 Nb8 axb8Q f4 d3 f3 Kd2 fxe2 Ne6 Kf7 d4 Ke8 d5 Bh6 Nd4 exd4 Rg1 Bg7 Rh1 Bf8 Kd3 Kd7 Kc4 c5 Kb5 h5 f4 d3 g4 c4 g6 b2 g5 b1Q f5 d2 f6 h4 g7 c3 f7 h3 g6 c2 Rh2 Rh6 Rf2 h2 Ba3 Nf6 g8Q c1Q g7 Qe7 Kb6 Qbb2 b5 Rh7 Qh8 Qb4 g8R Ne8 Rg4 Qf4 Qg7 Qa4 Re4 Ra5 Qc2 d1R Qd2 Rh8 Bb2 Qh4 Be5 Qh7 Bg3 Be7 f8R Qb1 R8f4 Rc1 Qa7 Rc2 Qg4+ Kd8 d7 Ba3 Qa6 Nd6 Ka7 Kc7 Ka8 Rf8 Qa7 Rf5 d8B+ Kd7 Bdh4 Bc1 Qa6 Kc7 Qa7 Re5 Qg7+ Nf7 d6+ Kd7 Qa6 Ke6 d7+ Nd6 d8Q Bd7 Qb4 Kd5 Qd2+ Kc5 Qg4 Nc8 Qg7 Na7 Qag6 Bh3 Qg4 Qba2 Rb1 Bf1 Ra1 Bb2 Re1 Qb1 Rf6 Rf5 Bb8 Re5 R6f4 Bc1
1q2n2k/2PB2rn/1NPKQ1Bb/1rB1rQ1r/1b1Q4/n2bQ1rN/8/2B4b w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 e5 dxc5 g5 b4 Rh7 f4 gxf4 h4 Rh6 g5 Rh8 Ra3 e4 Rf3 exf3 Rh3 Qa5 Rg3 Qd8 Rg4 hxg4 Kd2 f5 Kc3 Kf7 Kd4 Kg7 Ke5 a5 c4 d5 e4 d4 b6 a4 b7 f2 h5 a3 g6 f3 b5 f4 c6 a2 c5 a1B c7 g3 b6 g2 Nc3 d3 Ba3 d2 Nh3 g1R Qc2 d1R Bb4 Rg3 Be2 f1R Qb3 f2 Bg4 f3 Bd7 Rb1 c6 Rfg1 Ba3 f1B Bc1 f2 Qb5 Rh7 h6+ Kh8 Qb3 Re7+ Kd6 Bg2 e5 f1N e6 Ra5 h7 Rh5 Nd5 Nd2 Qe3 Re8+ e7 Bh1 Kc5 Nf6 Kd6 Na6 b8Q Nf3 b7 Rb5 Nb6 Bc3 Qa8 Nb4 b8B Nc2 Ba7 Bh6 Qb8 Ba6 Qc8 Rf8 e8Q Ng5 Q8e6 Re8 Qf5 Ree5 Qe6 Kg7 Qf5 Qh8 Qe8 Na3 Qee6 Qg8 h8Q+ Kf8 Na4 Nh7 Bc5 Bb4 Nb6 R1g2 Qg4 Rg1 Qef5 R1g2 g7+ Kf7 Qgd4 Qb8 Qc8 Rg1 g8B+ Kg7 Qe8 Kh8 Qee6 Rg7 Bf7 R1g3 Qef3 Ra5 Bg6 Bd3 Q3e4 Rb5 Qee3 Ne8+
r2B1r1R/BB1b4/2Q1q1r1/R1p1kq2/2n3Q1/Prr5/1B1PKbn1/1q3R1R w - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 Be6 f5 Bd7 Nc3 Bc8 Nce2 h6 Nf4 gxf4 Nf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 h4 Kd7 g6 Kd6 f7 b5 g7 e5 h5 e4 a3 e3 h6 b3 f6 e2 h7 b4 Rb1 f3 Bg2 g3 Rh5 b2 Re5 b3 Rh5 Nc6 Rg5 Qe7 Bh1 g2 Qc2 g1R+ Kf2 e1R Bg2 Na5 Qc3 Bd7 Bh1 Nc4 Qd3 Re3 Qg6 Nh6 g8Q Nf5 Qh6 Bg7 f8B Rc3 f7+ Ke5 Qc6 Qe6 d6 Bf6 Ra1 b1R Bb2 Rg4 Rh5 Rg6 Be7 Bg5 f8R Nfe3 Rf7 Ng2 Qc8 Rhg8 h8R Rf8 Bf6+ Kf4 Bd4+ Bf6 Rfh7 Bg5 Ba7 Ke5 Bc1 b2 Kf1 f2 Ke2 Rf5 Qg8 Bh4 Qg7+ Rf6 Qg4 Rg6 Rg5 Nge3 Be4 Ng2 Rgh5 Bg3 Rh1 Rff8 R7h5+ Kf6 Ra5 Bh4 Qb6 c5 Qc6 Ke5 Rf1 Be8 d7 Bg3 d8B Bd7 Re1 f1Q+ Kd1 Qff6 Ke2 Bf2 Rf1 Rg5 Qa4 Rg6 Bb7 Qff5 Qc6 Rb3 Ra2 Ra1 Rfh1 b1Q Bb2+ Rc3 Rf1 Qc1 Rfh1 Rb1 Ra1 Qg1 Bc1 Rb4 Bb2 Qgb1 Rf1 Rb3 Rfh1 Qbc2 Raf1 Qb1
Bq3B1r/2b3KQ/n1rN2nP/1P1rk2n/1p2Nbq1/1QnB3Q/1B6/1Q3b2 w - - 0 1 legal: proof: g4 a5 a4 d5 e4 h5 b4 hxg4 c4 f5 cxd5 b6 exf5 Bb7 h4 Bc8 Rh3 Rh7 Rb3 Rh6 b5 Rh8 Rb4 axb4 a5 Be6 a6 Bc8 Ra5 bxa5 Ke2 Kd7 Kd3 Kd6 Kd4 e5+ Ke4 g5 f4 c5 d4 a4 a7 g3 f6 g2 h5 g4 f7 g3 f5 c4 f6 c3 h6 a3 Qd3 c2 Nf3 g1Q Nh4 a2 Qc3 a1R Bb2 c1B Nd2 g2 Qh3 Ne7 Bd3 Bg7 f8Q Na6 Qf7 Ng6 Qb7 Qb6 Qf7 Qb8 Qb7 Bg4 f7 Be2 Kf5 e4 Kg5 Bf8 Kf6 Be7+ Kg7 e3 f8B Bf1 Qbc8 e2 Qc3 e1N Nf5+ Kd7 d6 Ke6 d7 Bd8 Qa3 Bc7 Ne4 B1f4 d8Q Rc1 Nfd6+ Kd5 Qdd7 Rc6 Bc2 Nd3 Qa4 Nde5 Bd3 Ng4 Qa1 Nf6 Qb1 Qb7 Qe7 Rd8 a8B Qc8 Qed7 Qh2 Qf7+ Qe6 Qg8 g1N Qh7 Qc8 Bb7 Qg4 Ba8 Ke6 d5+ Kd7 Nf7 Ne2 d6 Ke6 d7 Nc3 Nfd6 Ke5 Qd1 Re8 d8Q Qhg3 Qd7 Rd8 Qf7 Qh2 Qfb3 Qhg3 Nb7 Rd5 Nbd6 Nh5+ Kf7 Qg1 Qc1 Qb6 Qb1 Ng3 Kg7 Qa7 Bc2 Qb8 Bd3 Nh5+
3q3Q/k1Pr3N/N2n2rN/N3Q1K1/3q1PbB/q1r2B2/2pbn1rB/1n3B2 w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 gxh4 b6 f5 exf5 Bg7 Qg4 Bh6 Qd1 Bf8 b4 d6 c4 Nh6 g4 Ng8 b5 Be6 Ra4 Bc8 Rb4 cxb4 c5 d5 Rh3 Nc6 Rc3 Nb8 Rc4 dxc4 Ke2 Kd7 Kf3 a5 Kf4 h5 d4 e5+ Ke3 c3 f4 c2 d5 h3 f6 e4 g5 a4 f7 b3 b7 Kc7 c6 Kb6 c7 a3 d6 h4 g6 b2 d7 h2 g7 h1R Nd2 b1N Bh3 a2 Nc4+ Ka7 Na5 a1Q Ne2 Rh6 Nd4 Rf6 Bg2 h3 Qh5 h2 Bf1 Nc6 b8N Nh6 g8B Rg1 Nf5 h1Q Na6 Bb4 f8N Rg2 Nh7 Nd4 Bd5 Nf7 Nh6 Nd6 Qe5 Ne2 Bb2 Rb8 Bd4+ Rb6 Ba8 Bc3 Bc5 Qa3 Bb7 Qh4 Bc6 Qh8 d8B Bg4 Bd5 Rf7 Bd4 Rd7 Be7 Qh5 Bh4 Qd8 Ba8 Qf7 Bc6 Qc4 Bb7 Qcc5 Bd5 Rc6 b6+ Ka8 b7+ Ka7 Qf6 Qb6 Qg7 Rc5 Bc6 Rf5 Qe5 Rf6 Bd5 Nc1 Bc5 Bd2+ Kd4 e3 Bf3 e2 Kd5 e1R Bg1 Qf2 Bh2 Re3 Kd4 Rc3+ Kd5 Kb6 b8Q+ Nb7+ Ke4 Ne2 Qc8 Ka7 Bg1 Qde7 Qh8 Qd8 Bh2 Nd6+ Kd5 Rf5 Ke6 Qd4 Be7 Rg5+ Kf6 Rf5+ Kg6 Rf7 Bh4 Rf6+ Kg5 Rg6+
bRq4N/b1b1Q1Q1/N1N3rq/nKQn2P1/2Qb2P1/R1rq2p1/5kq1/6N1 w - - 0 1 legal: proof: c4 b5 f4 g5 a4 d5 axb5 h5 d4 e6 Be3 h4 Bf2 Nd7 fxg5 Nb8 g4 Nh6 Bg2 Ng8 Bg3 dxc4 d5 hxg3 d6 Rh4 Be4 Rh8 Bd5 exd5 Kd2 Kd7 Kc3 Ke6 Kb4 Ke5 h4 Kf4 e4 Ke3 b3 f5 e5 a5+ Ka4 c5 b6 d4 b4 f4 e6 c3 d7 c4 e7 f3 e8N f2 h5 f1Q b7 d3 b5 c2 b6 c1B h6 d2 h7 c3 Rh6 c2 Rh4 Ne7 Rh5 Qg2 Rh2 Nbc6 b8N Nd5 b7 Bd6 Nc7 Qf8 d8Q Kf2 Nc3 Rg8 h8Q Qh6 Ra2 Rg6 Nca6 Bc7 Kb5 a4 Nce2 a3 Qe7 Na5 Nc6 Rb8 Ra1 a2 Nf4 Be6 Qhf6 Rc8 b8Q Bf5 Qa8 Be4 Qfg7 Bb2 Rh1 c1Q Qb3 d1Q Qc4 Qd3 Qa7+ Bd4 Qac5 Be3 Rb1 a1B Rb3 Bad4 Ra3 Re6 Ng6 Rf6 Nh8 Rg6 Qcd6 Ba7 Qc5 Bd4 Rh3 Nb4 Nd8 Ba8 Nc6 Nd5 Ne5 Rf8 Nhf7 Qb3+ Q5b4 Bd6 Qc3 Qh8 Qd3 Qc7 Nc6 Qd7 Rh4 Bc7 Qc4 Qe3 Qbc5 Rb8+ Ka4 Rb3 Rh3 Rc3 Kb5 Qd3 Rh4 Re6 Rh3 Qd6 Rh5 Qe8 Rh8 Qed7 Rb8 Qc8 Nh8 Rh6 Qb4 Q6g6 Qbd6 Qh5 Qb4 Rg6 Qbc5 Qh6
kqNbb1RR/4r1N1/pq2r2b/r1Pbn1Q1/1N3KN1/3P4/1R3n1R/1Q4r1 w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 f5 exf5 gxh4 b4 Bg7 c4 Bh6 b6 Bf8 b5 d6 Ba3 d5 Bb4 cxb4 c5 Na6 Bd3 Nb8 Bc4 dxc4 Ke2 Kd7 Ke3 e5 g4 h5 f4 h3 b7 Kc7 g5 e4 d3 h4 g6 c3 f6 h2 f5 b3 g7 b2 f7 h3 f6 c2 Qd2 c1B Kf4 e3 Ra6 e2 Nc3 b1Q Re6 e1R Na2 Rh7 Re8 Be7 f8N Nh6 g8R Ng4 f7 Bd7 Nf3 Nc6 b8R Re6 Ng6 Nf2 f8N Ne5 b6+ Kc6 b7 Qdb6 Qe3 Bd8 Ne7+ Kc7 Nc8 Rhe7 Nb4 Bc6 Rf1 h1B Nh2 Bhd5 Ng4 h2 Re1 h1R Re2 Rg1 Rb2 Rd7 Re7 Ba4 Rh7 Rde7 Rh2 Bd7 Ng6 Be8 Nh4 Qc2 Nf5 Qb3 Ng7 Bd2 Kf5 Bc1 Qg3 Bh6 Qf4 a6 Qg5 Ra1 Nc2 Ra5 Kf4 Ra7 Ra8 Kc6 b8Q Rad7 Qd6+ Kb7 Nb4 Rc7 Rh8 Rc6 Qd7+ Rc7 Qa4 Rcc6 Rg8 Rg6 Qa2 Rce6 Ra7+ Kb8 Rd7 Ka8 Qb1 Rc6 Rd6 Qb8 Rf6 Rce6 Rf5 Qb6 Rff8 Qb8 Rh8 Qb6 Rfg8 Qb8 Nc6 Q3b6 Nb4 Nd1 Nf2 Rgf6+ Kg3 Rf8 Ng4 Rf1 Qc2 Rg1+ Kf4 Nf2 Qd1 Ba2 Qb1 Bd5
6nb/4pbr1/2rQ3P/B1N1qqN1/p1Pn1k2/2Q1n3/1r1KB3/1B1b1NNB w - - 0 1 legal: proof: e4 b5 d4 f5 f4 fxe4 a4 c5 dxc5 g5 axb5 Kf7 f5 Ke8 h4 h6 g4 Na6 b4 Nb8 Ra3 Rh7 Rf3 Rh8 Rf4 gxf4 g5 h5 Rh2 Rh6 Rg2 Rh8 Rg4 hxg4 c4 Kf7 b6 d5 h5 a5 b7 g3 c6 a4 b5 f3 g6+ Kf6 g7 Ke5 h6 g2 c7 d4 b6 f2+ Kd2 d3 f6 Qd7 f7 Qh3 Qb3 Be6 c8B Kf4 Be2 Ra6 Qc3 Nc6 b8N Nd4 b7 Qf5 Nd7 Rc6 Nc5 Rh7 Ba3 Bd5 Bb4 f1N+ Kc1 e3 Ba5 d2+ Kd1 Nf6 g8B Bg7 f8N Bf7 Be6 Rh8 Bh7 Ng8 Bd5 Bf6 b8Q+ Be5 Nf3 g1R Qd6 Rg2 Bg6 Rh7 Ng1 Rg7 Nh7 Qf6 Ng5 Rh7 Bef3 Re2 Bd3 Qf5 Qe6 Bh8 Bg4 Rg7 Bh1 Nf3 Kc2 d1B+ Kc1 Rh2 Nd2 e2 Bb1 e1Q Qd6+ Qee5 Bh5 Ne3 Nf1 Nd4 B5f3 Rb2 Be2 Bc2 Kd2 Bd1+
1k6/3P1n1Q/2RR1b2/r1bBn1pP/n4Qb1/B1R3pr/2qr4/Kr1R1B1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 b4 Ke7 b6 Ke8 b5 Bb7 Bg2 Ba6 Bf1 Bc8 c4 Qf6 Na3 Qe7 Nf3 Qd8 Nd4 d6 Nc6 d5 Nb4 cxb4 c5 Ne7 Nc4 dxc4 Ra6 Ng8 Ra3 Qf6 Ra1 Qd8 h4 Kd7 d4 g5 Kd2 a5 Kc2 f5 Kb1 g3 e4 f4 b7 Kc7 h5 b3 b6+ Kd7 d5 f3 d6 f2 Ba3 b2 Qc2 Nc6 b8R c3 b7 Qc7 e6+ Kd8 e5 a4 Qe4 Nh6 Qh7 Ra5 e7+ Kd7 e8R+ Nf7 Re6 c2+ Ka2 Be7 Rc1 b1N Ka1 Nc3 Rf6 Kd8 e6 Nce5 c6 Rf8 Rd1 c1B Rh4 Be3 Rc4 Bc5 Ra8 Re8 b8Q Rf8 Rf3 Bf6 Ra6 Re8 Qb4 Bd7 e7+ Kc8 Rb6 Rd8 e8B Bg4 Rcd4 Rd7 Rd5 Rd8 Qf4 Rd7 Ra6 Kb8 R5d3 Rd8 Bd7 Qc8 Be6 Qc7 Bd5 Rd7 Bg2 f1R Bh1 Rf2 R3d2 Rh2 Re3 Rh3 Rd4 Re7 d7 Re6 R4d2 Rd6 Red3 Qb7 Re3 Qb3 Rf3 Qc2 Rb6+ Ka8 c7+ Ka7 Rc6 Kb7 c8B+ Kb8 Bb2 a3 Ba6 Na4 Rc3 a2 Be2 Be7 Bf1 Bf6 Bdg2 Rd3 Bd5 Rd4 Ba3 Rd3 Rc1 Rd4 Rdd1 Rd2 Rd6 Qd3 R3c2 Be3 Rcc6 Bc5 Rc2 Nb6 Kb2 a1R Bhe4 Rc1 Bh1 Rb1+ Ka2 Rb2+ Ka1 Na4 Rc4 Qc2 Rc3 Rb1+
3RR3/3r3k/n3Bb2/Qpb2R2/2P1bPpB/B2bB3/r1q4Q/1bn1K1qR w - - 0 1 legal: proof: d4 a5 e4 g5 b4 f5 exf5 c5 dxc5 axb4 Bd2 g4 Bg5 Ra4 Bc1 Ra8 f4 h5 Nf3 Bh6 Nc3 Bf8 Ne4 Bg7 Nf2 gxf3 g4 Bh6 g5 Bf8 Ng4 hxg4 a4 Kf7 c4 Kg7 h4 e5 g6 b5 a5 d5 h5 b3 a6 d4 a7 b2 c6 b1B c7 f2+ Kd2 d3 Bg2 f1B Qe2 e4 Ke1 e3 Bd5 Rh7 Be6 Ne7 Ra6 Nd5 Qh2 e2 Be3 Bb7 c8R Qb6 Re8 Nc3 f6+ Kh6 f7 Bc5 g7 Be4 g8Q Na2 f8B+ Rg7 Be7 Nc1 Bh4 Rd7 Qf8+ Kh7 h6 Qc6 Rb6 Na6 Rbb8 Qd5 Rbd8 Qd4 Qf6 Qb2 Qc3 Qc2 Qa5 d2+ Kf2 Kg6 h7 d1Q h8B Kh7 Bb2 Qd4 Ba3 e1B+ Kg1 Bd2 Kf2 Bfd3 Rf8 Qa1 Rf5 Bc3+ Kg3 Qb3 Kf2 Bf6 Ke1 Qc2 Re8 Rad8 a8R Ra7 Qc7+ Rd7 Rad8 Nb4 Bb2 Ra2 Ba3 Na6 Qa5 Qg2 Qc7 Qab2 Qb6 Qbc2 Qa5 Qg1+
q3b3/1NB3rB/2Bp4/2Q2b1n/q1Qbb1p1/r1B2P1N/2N1P1kN/2K3qn w - - 0 1 legal: proof: b4 b5 g4 c5 a4 e5 axb5 h5 gxh5 f5 d4 cxd4 h4 e4 Ra3 Nf6 Rd3 exd3 Rh3 Ng8 Rg3 Be7 Rg5 Bf8 Rg4 fxg4 Kd2 Ke7 c4 Kd6 b6 Ke5 h6 Kf4 b5 g5 c5 a5 b7 d6 c6 a4 h7 a3 b6 a2 c7 a1Q h5 g3 h6 g4 Qc2 g2 Bb2 Nd7 b8B Bg7 b7 Ndf6 Qc5 Ne7 Nf3 g1Q Bc3 Bf5 c8B Nh5 Nh2 Rg8 h8N Ra3 h7 Qg3 Kd1 d2 Bc7 Qf8 Bd7 Qa8 b8Q Be4 Bc8 Nf5 Nf7 Qg1 h8N Nfg3 Bf5 Nh1 Nd8 Bf6 Qb3 Rg7 Qg8 Qa2 Nhf7 Qc4 Ng5 Qca4+ Qb3 Qg3 Bh7 Bf5 Ne4 Qg2 Kc2 d1B+ Kd2 d3 Qg8 Bc2 Kc1 Bd4 Ng5 Be4 Qgc4 d2+ Kb2 d1B Kc1 Bf5 Nb7 Qg1 Bg2 Bce4 Bf3 Qg3 Bg2 Bdc2 Bf3 Bg6 Bg2 Be8 Bf3 Bf5 Bc6 Bce4 f3 Qf2 Nh3+ Kg3 Kb2 Kg2 Kc1 Ra2 Na3 Ra1+ Kd2 Ra2+ Nc2 Ra3 Kc1 Qg1+
1r2R1n1/Pb1bQQ1Q/1Q6/rBB5/p1Kqb1nR/B1pBbr2/3k1P2/1q6 w - - 0 1 legal: proof: b4 a5 h4 d5 e4 g5 a4 gxh4 c4 f5 exf5 b6 cxd5 Ba6 Nc3 Bc8 Na2 Nh6 b5 Ng8 Nb4 Bg7 Nf3 Bf8 Ne5 axb4 a5 Ra7 a6 Ra8 Nc6 Qd7 Na5 bxa5 Bb2 Qd6 Bc1 Qd8 Ke2 Kf7 Kd3 Kf6 g4 Ke5 b6 c5 b7 h5 f6 a4 d6 c4+ Ke3 c3 Kd3 b3 g5 b2 g6 b1Q+ Qc2 h3 d7 h4 g7 h2 f7 h3 Ba3 Nc6 Kc4 Kf4 b8B+ e5 d4 Bc5 d5 Kf3 d6 e4 Ba7 e3 Bd3 e2 Re1 Be3 B7c5 h1B f8Q+ Qf6 d8Q h2 Qde8 Bd7 Qfe7 Rh5 a7 Rb8 Q8f7 Ne5+ Kd5 Ng4+ Kc4 Bg2 Rh1 e1R Ra2 N8h6 g8B Rg1 Bgh7 Ng8 Rb2 Re5 Rb4 Rd1 Re1 h1B Bf1 Rdd5 Bhd3 Rf5 Re2 Kf4 Re1 Be4 Re2 Kf3 Re1 Bc6 d7 Qg7 d8Q Bd7 Qb6 Rf6 Bd6 Ra5 Bc5 Bb7 Be4+ Kf4 Bc6 N4h6 Bb5 Bc1 Qef8 Kf3 Re8 Be3 Kd3 Qh8 Rh4 Ng4 Kc4 Rf5 Bh3 Rf4+ Qe4+ Ke2 Bf1+ Kd2 Bd3 Rf6 Qf5 Bhe4 Q5h7 Rf3 Q8e7 Qd4+
Q6b/2n3qp/2R5/1qbNRpNr/2NR1Q2/b4RrP/3KqP1p/2N2nk1 w - - 0 1 illegal: No possible last move
4k3/2n1n1p1/2q4n/2p1p3/NQ1RK1nR/3rb1PQ/QP1rNr1b/1NQN4 w - - 0 1 legal: proof: c4 h5 a4 d5 g3 dxc4 Bg2 b5 axb5 h4 Qc2 h3 Qa4 Rh6 Qd1 Rh8 d4 hxg2 e4 f6 d5 Nc6 d6 Be6 Bf4 Nb8 Be5 Bd5 exd5 fxe5 Kd2 a5 Ra4 e4 Ke3 e5 h4 c3 f4 c2 f5 c1N d7+ Ke7 b6 Qe8 d8N Nd3 b7 Nc6 b8Q Nf4 Nb7 Ne6 Nh3 g1B+ Nf2 Rh6 d6+ Kd7 h5 Rf6 Qa7 Rd8 Rc4 a4 h6 a3 h7 a2 h8N a1N Ng6 Nh6 Rh4 Bh2 Qa2 Rf7 f6 Nc2+ Ke2 e3 Kd3 e2 Qc1 e1R Nd1 Re2 Nf4 Ne3 Nc5+ Kc8 Na4 Kd7 Re4 Rc2 Ne2 Rd2+ Kc3 Be7 Rc4 Rf8 f7 Bg5 Rcf4 Ne7 Rb4 Rc2+ Kd3 Rd2+ Ke4 c6 Rc4 Nc7 Rb4 Rb8 Rc4 Rb3 Rd4 Kd8 d7 Rc3 Qe6 Rcd3 Qh3 Neg4 Qf1 Nc8 Qg2 Be3 Qh3 Rh8 f8Q Rg8 Qd6 c5 Qd5 Rf8 Qa2 Ke7 Nec3 Rff2 Ne2 Nb5 d8Q+ Kf8 Na3 Ne7 Qb6 Nc7 Nb1 Qb5 Qa5 Ke8 Qb4 Qc6+
1R6/nr2pK2/1Qp1P1R1/1NPNQ3/N1r1q1b1/1N2Q2p/2q3b1/bkq3Qb w - - 1 2 legal: proof: d4 g5 f4 gxf4 a4 b5 axb5 c6 d5 Na6 d6 Nc7 dxc7 Bg7 Ra5 Bh6 Ra1 Bf8 g4 h6 g5 Rh7 g6 Bb7 Bd2 Bc8 Bc3 Rh8 Bf6 Rh7 Bh4 Rh8 Bg5 hxg5 h4 g4 Bh3 gxh3 Kf2 a5 Kf3 d5 b4 Kd7 Kg4 Ke6 Kg5 Ke5 e4 f5 c4 d4 b6 a4 b7 a3 b8Q d3 c5 Kd4 e5 f3 b5 d2 b6 Kd3 h5 a2 h6 f2 h7 f1B b7 f4 g7 f3 Kg6 f2 Kf7 Ra7 Na3 Qd4 Ne2 Bg2 Qg1 d1Q Rb1 f1B Nb5 Kc2 Nc1 a1Q Nb3 Nf6 g8N Nd7 Nf6 Qe4 Nd5 Bg7 Rh2 Rd8 h8Q Nb6 Qh6 Bg4 e6 Nc8 Qhe3 Rd7 Rh1 Ra4 Qa7 Bb2 b8Q Rc4 Qab6 Na7 c8N Rb7 Qe5 Qa2 Rh2 Ba1 Rh1 Bfe2 Rh2 Bh1 Rg2 Qc1 Rg3 Bgf3 Rg6 Bfg2 Ncd6 Bh5 Nbc3 Bhf3 Ndb5 Bg4 Na4 Qd2 Rf1 Qc1 Rf5 Kb1 Rh5 Rb4 Rh8 Rc4 Rb8 Qac2
1QKbNB2/2B2N1p/q2nkb1N/1p2P1rP/3Q1br1/N2B3p/q2B4/2r2b2 w - - 0 1 legal: proof: f4 e5 fxe5 g5 b4 a5 a4 axb4 h4 Bh6 h5 Nf6 Ra3 Bf8 Rah3 Ng8 c4 d5 g4 b5 c5 Nd7 Rh4 Nb6 cxb6 gxh4 Rh3 Kd7 Rc3 Ke8 Rc4 dxc4 Kf2 Ke7 Kf3 f5 Kf4 c5 d4 b3 e4 c3 g5 b2 a5 c2 b7 c4 b8B c3 d5 Nf6 e6 Ne8 Ke5 f4 a6 f3 a7 f2 g6 Nd6 g7 Qb6 Nh3 Qa6 Na3 b1Q Bd2 c1B Bd3 f1R Bc7 c2 Ng5 Rg8 Nf7 Qa2 Qg4 Rb8 a8Q Nb7 Qa7 Ra8 Qb8 h3 Qg1 Bb2+ Qd4 Rg1 Kf5 c1B Ke5 Rg4 d6+ Ke8 e7 Kd7 e8N Be7 Kf5 Bc3 Ke5 Bf6+ Kf5 Ba5 e5 Bb6 Bc3 Bf4 Bd2 Rh8 g8N Rg5+ Ke4 Ke6 Ngh6 Rhg8 d7 Ra7 Bd6 Bbd8 Bf8 Rg4 Nb1 R8g5 Na3 Bc7 d8B Bd7 Bde7 Bd8 Bd6 Bc8 Bc7 Bd7 Qa1 Bc6+ Kd4 Bg2 Qd1 Nd6 Kc5 Bf1 Qa1 Rb7 Qc3 Rb6 Qd4 Rc6+ Kb4 Qc8 Ka5 Rc1 Kb6 Nb7 Ka7 Nd6 Qa8 Qa6+ Kb8 Nb7 Kc8 Qb3 Qaa7 Qa2 Qb8 Nd6#
Q1rk4/1b6/1R5q/1R1nb1p1/2pR1rP1/R2b1R1b/1QP1bq2/BK1rR2R w - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 f5 d4 h5 g3 e5 Bg2 h4 Nc3 h3 Nge2 c4 Bg5 Na6 Bc1 Nc5 dxc5 hxg2 Nd4 exd4 e5 Be7 Ne4 fxe4 Rf1 Bd6 Rh1 Bf8 Kd2 g1Q a4 d5 h4 g5 f4 b5 c6 d3 f5 d4 c7 b4 h5 b3 h6 b2 f6 b1B a6 Ne7 h7 Nd5 a5 Bd6 a7 Rf8 h8R Ba2 e6 Bb7 c8R Be5 a6 Bb3 e7 Ba4 Rb8 Bd7 Ra5 Bh3 Bb2 e3+ Kc1 e2 g4 e1R Kb1 d2 Rb5 d3 Ba1 Re2 Qc1 d1B Qb2 d2 f7+ Kd7 e8R Qf6 Rh6 Qgf2 Rbd8+ Kc7 Re6 Rc8 a8Q Qg7 a7 Qg6 Rh7 Qh6 Rde8 Kd7 Reb6 Kc7 Ree6 Kd8 Rg7 Re3 Rgg6 Be2 Rgf6 d1B Rf4 Bd3 Rd4 Re4 Re7 Re8 f8R B1e2 Rf3 Rf4 Ree6 Bg7 Ree4 Be5 Ree3 Bef1 Re1 Bfe2 Qb8 Re6 a8R Rd6 Ra3 Bf5 Rbb3 Nb4 Re4 Rd2 Qa8 Nd5 Rd4 Bfd3 R3b5 Rd1+
1q1r2k1/Q1QPr3/5P1b/Q1NR4/1bQ2n2/N2nN3/K3q1n1/1nQ1b1N1 w - - 0 1 legal: proof: c4 a5 b4 f5 e4 b5 exf5 d5 cxd5 Kd7 a4 Qe8 axb5 Na6 b6 Qd8 b5 Ke8 Ra4 Nb8 Rc4 Nd7 Rb4 Nb8 g4 h5 f4 a4 g5 a3 f6 Nd7 f5 Nb8 Rg4 hxg4 g6 Be6 Bh3 Kd7 Bb2 Rxh3 Be5 Bf7 Bf4 Rh5 Bh6 Rxh6 gxf7 Rh8 h4 g5 d4 c5 Kd2 e5 Kc1 c4 d6 c3 h5 g3 d5 g2 h6 a2 b7 a1B h7 g4 b6 e4 Qb3 c2 Qa2 g3 Qb3 e3 Rh5 e2 Na3 e1N Qc4 Nc6 b8Q Bc3 b7 Nb4 Qa7 Ne7 b8Q+ Qc7 Qbb6 Rd8 Qba5 Ng6 Rg5 Bd2+ Kb2 Nbd3+ Ka2 c1B Rh5 Rg8 h8N Ngf4 Ng6 Rg7 Nh4 Be7 f8N+ Ke8 d7+ Kf7 Rg5 Kg8 Ne6 Beb4 d6 Qb8 Rh5 Re7 Nc5+ Kf8 f7 Kg7 Nh3 g1N Ng2 Nge2 Ne3 Neg2 Ng1 Be1 Rg5+ Kh8 f8Q+ Kh7 f6 Nc3+ Kb3 Bcd2 Rd5 Nb1 Qh6+ Kg8 Ka2 Nh4 Q5c7 g2 Nh3 g1Q Qca5 Qh2 Ng1 Rf8 d8Q Qe2 d7 Nhg2 Qdc7 Rd8 Qh5 Qf1 Qd1 Qe2 Qdc1 Bh4 Qb3 Bg5 Qbc3 Bh6 Qc4 Be1+
B1q1r1Nn/p1NQ1qb1/7p/Qp2rQ1b/1Pq4q/3KNQNP/4N3/1k5n w - - 1 2 legal: proof: d4 b5 b4 c5 e4 f5 a4 c4 a5 c3 Ra2 e5 Rb2 cxb2 dxe5 Qb6 e6 Qd8 Nd2 b1N e5 Na3 Nb1 Nc4 Qd2 Ke7 Qd1 Nb6 axb6 Ke8 f4 g6 g4 Bc5 Nf3 Kf8 Kd2 Ke7 Ne1 Ke8 Bd3 Bf8 Rg1 Ba6 Rg2 Bc8 Re2 g5 Re4 fxe4 f5 Ba6 Ke2 Bb7 Bf4 gxf4 Kd2 Bc8 c4 Ke7 c5 d5 c6 f3 b7 e3+ Kc2 f2 g5 f1Q c7 e2 g6 d4 h3 h6 g7 Na6 b8Q Nc5 Bc4 Ne4 Kd3 Ng3 Nc2 Nh1 Nc3 e1Q+ Ne2 Qh4 Bd5 Qe8 Bc6 Qf7 Ne3 Bd7 c8Q Be8 Qb6 Qff4 Kd2 d3 Qa5 Qc4 Qb1 Rb8 Ba8 Rb6 Qd1 Rc6 Qf1 Rc5 Qf3 Rd5 Nf1 Rc5 Nfg3 Rd5 Ke3 d2 Qc6 d1Q Qb7+ Bd7 Qc6 Qdc2 f6+ Ke8 Qf5 Ne7 g8N Ng6 e7 Bg7 Qce6 Qc8 Qf3 Q2c7 Qef5 Rc5 Kd3 Bc6 Q3g4 Bf3 Qd4 Bh5 Qdg4 Qfe6 f7+ Kd7 f8Q Q7b7 e8N Kc6 Q8f7 Kd5 Nd6 Qbc6 Qf8 Qee8 Qd7 Qf7 e6 Ke5 e7 Qcd5+ Ke3 Qc4 e8N Rd5 Ndf5 Rc5 Ngf6 Rg8 Qf3 Nh8 Nc7 Rd5 Qc5 Rd8 Qf8 Re8 Ng8 Rc5 Kd2 Rd5+ Ke1 Rc5 Ne3 Rd5 Ng1 Kd4 Qc5+ Kc3 Ne2+ Kb2 Kf1 Rd3 Qcf5 Rd5 Ke1 Rde5 Kd2 Qc1+ Kd3 Kb1 Qde6 Qc5 Qd7 Qcc4+
1BB2N2/7p/K1Nr3N/b1N3rN/b6q/N1b2bn1/1pPN1N1P/1rk3q1 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 d4 Qf6 dxe5 Qh4 b6 Qd8 b5 a5 Qd2 a4 Qb4 cxb4 Ra3 Ne7 Rd3 Ng8 Rb3 axb3 e4 f5 f4 Bb7 g4 Ke7 e6 Nf6 e5 Bg2 g5 Ra4 gxf6+ Ke8 Nf3 Ra8 Kd1 Nc6 Ne1 Ne7 Bd3 Ng8 Rf1 Bc6 Rf2 Bg2 Re2 Bb7 Re4 fxe4 f5 Bc8 Kd2 d5 f7+ Ke7 b7 g5 b8N b2 b6 d4 b7 g4 Nd7 g3 b8N g2 Nf6 g1Q Ba6 d3 Na3 b1R Nf3 b3 Kc3 b2 Kb4 d2 Kb5 d1B Ng4 e3 Nf2 e2 Nd2 Bg7 f8N e1B Nfd7 Bh5 Nc5 Bf3 Bb7 Ra6 f6+ Kf8 f7 Ke7 f8N Rd6 Ba6 Nf6 Bb7 Bd7+ Nc6+ Ke8 e7 Kf7 e8N Nh5 Ba6 Rg8 Bc8 Ng3 Ka6 Qh4 Nf6 Bh8 N6g4 Rg5 e6+ Kg7 Ndc4 Ba5 Nh6 Kf6 e7 Be8 Nd2 Bd7 Nf7 Kf5 e8N Kf4 Ng7 Ke3 Nh5 Bhc3 Nh6 Ke2 Nde4 Be8 Bf4 Bd7 Nd2 Be8 Nh3 Kd1 Nf2+ Kc1 Be5 Bf7 Bf4 Bb3 Be5 Ba4 Bf4 Rf6 Bb8 Rd6
1bK1R3/4r1pB/2B4P/R3NPnk/3n1n2/2R1qP1q/3b2p1/b1NbQ1N1 w - - 0 1 legal: proof: g4 e5 d4 b5 a4 d5 axb5 h5 Qd3 h4 Qg3 hxg3 c4 exd4 cxd5 Ba6 Bg2 Bb7 Bf1 Bc8 e4 a5 e5 f6 e6 Rh5 Bf4 Rf5 Be5 fxe5 gxf5 Ra6 Bc4 Rd6 Be2 Rd7 Bf1 Rf7 Nh3 Rf6 Ng1 Rh6 Nh3 Rh5 Ng1 Rh8 Kd2 c5 Kd3 c4+ Ke4 d3 b4 c3 b6 d2 e7 Kf7 b5 d1N d6 g2 Kd5 c2 b7 c1B b6 a4 d7 a3 Kd6 e4 Nd2 a2 Bd3 e3 Nb3 Nc6 b8N e2 b7 Nd4 Nc6 e1Q b8R Bd2 Nc1 Nh6 Ne5+ Kf6 Rb3 Kg5 Rc3 Nb2 h3 Qa5 d8Q Qa3+ Kc7 Kh5 Qe8+ Nf7 Be4 Rg8 h4 Bd7 Bc6 Nd3 f3 Qg3 Rh3 Nf4 Rh1 Qh3 Rh2 Kh6 h5 Ng5 Rh1 Be6 Kd8 Bb3 Kc8 Bd1 Rh2 Qg4 Rh4 Qh3 Rg4 Nd5 Re4 Nf4 Re1 Nf7 Re4 Kg5 h6 Kh5 Qd8 Qa7 e8B Bd6 Qa5 Bb8 Qb4 Kh4 Ree3 Ng5 Qe7 Rf8 Re4 Rf6 Bg6 Re6 Bh7 Kh5 Qb4 Re7 Re2 Nc2 Qe4 Qc5 Qe3 Qa3 Qf2 Qb3 Qe1 Nd4 Rd3 Ng6 Nf7 Rb7 Re8 Re7 Ne5 Nf4 Re3 Qf7 Ra3 Qb3 Ra5 Qa3 Rb1 Qe3 Rb3 a1B Rba3 Ng6 Rc3 Nf4
B2qn2N/n2q4/1n4p1/1BB3Nq/P4Rbb/n3R2p/PNk2p1P/4Q1K1 w - - 0 1 legal: proof: d4 a5 e4 d5 c4 dxe4 f4 a4 b3 b6 c5 bxc5 bxa4 cxd4 Qe2 d3 Qf3 Nh6 Qd1 Ng8 g3 h5 Ba3 e5 Be7 f5 Ba3 e3 Bb2 e4 Bc1 Ra5 g4 Re5 fxe5 f4 Ba3 Rh6 Bb2 Rf6 Bc1 Rf5 gxf5 Qf6 Na3 Qe7 Nb1 Qd8 e6 Ke7 f6+ Kd6 e7 Kc5 e8B Kc4 f7 c5 Qf3 e2 Kf2 e1N Qh3 f3 Nc3 h4 Nd1 g6 Bd7 Nc6 Be3 Nc2 Nc3 Na3 Bh6 e3+ Ke1 e2 Kf2 e1N Bg5 Na7 Bc6 Ng2 Rd1 Nf6 Be3 Ne8 Qg3 Nf4 Nh3 Bg4 Ba8 Nd5 Ng5 h3 Kg1 Nb6 Qe1 Be7 f8N Bf6 Nf7 Bh4 Ne6 Qd7 Bg2 d2 Neg5 Kd3 Nh8 c4 Bf1+ Kc2 Bc5 Qd8 Rb1 d1Q Rb4 Q1d7 Nd1 c3 Bb5 Kc1 Ba6 c2 Rf4 Kb1 Bb5 c1Q Nb2 Kc2 Kf1 Qcd2 Rg1 Qe3 Rg2+ Qed2 Re2 Qh7 Ree4 Q2d7 Kg1 Qh5 Re3 f2+
4r1N1/4ppNp/qN2P2Q/1q1B1B2/3PPB1b/1qkbK3/b6r/R5Rq w - - 0 1 legal: proof: f4 b5 e4 d5 c4 dxc4 a4 g5 h4 gxh4 b4 a5 bxa5 Nd7 a6 Ne5 fxe5 Nf6 a5 Nd7 a7 Nb8 axb8Q b4 a6 Ra7 Qa8 Rxa8 Ke2 Kd7 d4 Kc6 g4 Kb5 a7 c5 e6 h3 g5 h2 g6 b3 g7 Kb4 g8N b2 Kf3 c3 Kf2 c4 Ra2 c2 Bg2 c3 Kf3 Qb6 Qd3 Bg7 Bh3 Bf6 Ke3 Ba6 Ra3 Qb5 Qf1 Bh4 Nd2 b1B Bf5 Ba2 Nh3 Re8 Rg1 h1Q a8B Rc8 Nh6 Rhe8 Nc4 Rb8 Bd2 c1Q Ng8 Qb1 Qc1 Qb3 Nb6 Rbc8 Nf4 Rc5 Bg6 Rh5 Bd5 Rh6 Bf5 Rh5 Be1 Rh6 Bg3 c2+ Kf2 Kc3 Nh5 Kd3 Qg5 c1Q Ng7 Qc8 Qf6 Kc3 Ke3 Qa4 Be5 Bd3 Bf4 Qb5 Qg5 Rh5 Qh6 Qca6 Ra4 Rg5 Ra5 Rg2 Ra3 Rh2 Ra5 Bab1 Ra1 Ba2
B3Bn2/R1b1q2k/N1N1Pbq1/3b4/4bbP1/1Rb3q1/r1P2B1r/K2n2QR w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 hxg5 b5 f4 bxa4 e3 e5 fxe5 dxe3 b4 h5 g4 a5 g6 f5 g7 Kf7 e6+ Kg6 b5 d5 b6 d4 b7 a3 Be2 d3 Nc3 d2+ Kf1 a4 Ne4 h4 Nf6 h3 Ba6 h2 Ke2 a2 Bb5 f4 Rb1 a1B Nh5 f3+ Kf1 a3 Rb2 a2 Bc6 e2+ Kf2 e1B+ Ke3 f2 Bf3 f1Q Be4+ Qf5 Rb5 Kh7 Rd5 Bc3 Kd3 a1B Nh3 Bg3 Rd7 Nf6 Ng1 Bf4 Ng3 Ra2 Qe1 B8d6 N1e2 Bc7 Qg1 Qg6 Nd4 Nd5 Nc6 d1Q+ Kc4 Qe8 Kb3 Qd3 Be3 Qe7 Bf2 Ne3 Bd5 Bab2 Ne4 Nd1 Nc5 Qg3 Na6 Bf6+ Bf3 Bbc3 g8B+ Kh6 Bf7 Kh7 Rd5 Nd7 b8R Nf8 Be8 Bb7 Rd7 Ba8 Rb4 Rb2+ Ka3 B7e5 Ra7 Bc7 Nd4 Bd5 Nc6 Rb3+ Ka2 Rb2+ Ka1 Be4 Qf1 Bd5 Rb3 Be4 Rg1 h1B Qe1 Kg8 Qe3 Rh2 Re1 Bg2 Rh1 Kh7 Qe1 Bd3 Bd5 Bde4 Qg1 Bgf3 Ncb8 Bg2 Ba8 Bd5 Nc6 Bgf3 Qf1 Bfe4 Qg1 Ra2+
k4n1b/1nBrB2b/2P2P2/q1bPR3/nNb3r1/8/n1R5/R1NbrKNQ w - - 0 1 legal: proof: b4 b5 e4 c5 h4 g5 c4 f5 exf5 gxh4 a4 d5 axb5 cxb4 c5 Nf6 Be2 Ng8 Bc4 dxc4 f4 Kd7 g4 Kc7 d4 Kb7 b6 e5 d5 a5 g5 h5 g6 e4 f6 a4 f7 a3 f5 a2 g7 b3 Ne2 c3 Nd2 h3 Ba3 b2 Rb1 a1B Qc2 h4 Nd4 h2 Qb3 h3 Nb5 c2 Nf1 c1N Nc7 e3 Ne8 e2 Ne3 Ra4 c6+ Ka8 Ng4 Ba6 Ne3 Rg4 Ng2 Bc5 f8N Ne7 g8R Bc4 Nh4 Nd7 Ne6 Nc8 Qd1 Nd6 Nf4 Nf8 Rg5 Na2 Nf3 Rh7 Nd3 Rd7 Ng1 Nb7 Rc1 b1N Rc2 Nbc3 Nc1 Na4 Rh5 Bg7 f6 Bh8 Re5 Qc7 Nd6 Qd8 Nb5 Qc7 Nd4 Qd8 Kf2 e1R Bb4 Re2+ Kf1 Qc7 Ndf3 Qd8 Ne1 Qc7 Ned3 Qd8 Nf3 Qc7 Rg1 h1B Qe1 h2 Qh4 Bd4 Be7 Bc5 Nb4 Qd8 Rg3 Qc7 Ng1 Be4 Ra3 h1B Qh3 Bhf3 Qh1 Nc3 Ra1 Bh7 Qh2 Na2 Qh1 Nd6 Rh5 Qa7 Re5 Qa5 b7+ Ka7 b8B+ Ka8 Bc7 Nb7 Bcd8 Rf2+ Ke1 Bd1 Bc7 Re2+ Kf1 Re1+
B1nR3b/6n1/rk2n1bB/rq3q1N/1q1r2RP/3P4/2KNQrPN/1n2B3 w - - 0 1 legal: proof: c4 e5 a4 g5 b4 b5 axb5 d5 f4 gxf4 Ra3 dxc4 Rh3 h5 Qb3 e4 Qf3 exf3 Rxh5 Bd6 Rh7 Bf8 Kd1 Kd7 e4 c5 h4 Kc7 d3 a5 e5 a4 e6 c3 e7 f5 e8N+ Kb6 Bd2 c4 Be1 a3 Kc1 f2 Kc2 a2 Nc7 a1R Re7 f3 Re8 f4 Ne6 Ne7 Ng5 Qd4 N1h3 R8a6 Kc1 c2 Ne4 Bg7 Rd8 Nd7 Nc5 Nf5 Nb3 R1a5 Kd2 c1N Rh2 c3+ Kd1 c2+ Kd2 Ne2 Rh1 c1N Kc2 Nc3 Be2 f1R N1d2 f2 Bf3 Nb1 Ba8 f3 Nf4 Ne2 Nh5 Nf4 Rh3 Ne6 Rg3 Re8 Rg6 Bh8 Rg4 Qe5 Nd4 Nfg7 Nf5 Re7 Nfg3 Bb7 Kc1 Be4 Kc2 Rh1 Ngf1 Bg6 Nh2 f1Q Bg3 f2 Bf4 Kc7 Bh6 Qfe1 b6+ Kd6 b5 Kc5 b7 f1Q b8Q Qff5 b6 Rf1 b7 Nb6 Ndf3 Nc8 Nd2 Rf2 Qa7+ Kb5 b8B Rd7 Qe3 Rd4 Qe2 Kb6 Bd6 Qb5 Bg3 Qf4 Nb3 Qeb4 Nd2 Rf1 Bf2 Qff5 Be1 Rf2
Q2R4/1Pbq2n1/2r5/1B2Nr1B/2n5/PK3RRq/N2bP1Bk/1b1qq1bn w - - 0 1 legal: proof: f4 d5 h4 e5 c4 exf4 cxd5 g5 hxg5 b6 b4 Bd7 Ba3 Bc8 Qc1 a5 Qc5 bxc5 b5 Bg4 Bb4 axb4 Kd1 Be6 Ke1 Bc8 Kd1 Ke7 Kc2 Kd6 g4 Ke5 g6 f5 a3 h5 d6 b3+ Kb2 c4 g7 c5 b6 h4 b7 c3+ Kc1 h3 d7 b2+ Kc2 f3 d4+ Kf4 d5 Kg3 d6 f2 g5 h2 g6 c4 Bh3 f1Q Nf3 f4 Ra2 Qe1 Nbd2 Ra5 Bg2 Ne7 g8B Nbc6 g7 Ne5 Bd5 Rh6 g8B Nf5 Bge6 Ng7 Ng5 f3 Nb1 f2 Rg1 h1N Nd2 f1Q Bdf3 Kh2 Beh3 Qe7 d8R Bf5+ Nde4 Qd7 Bh5 Qf3 B3g4 Qh3 B4f3 Be7 Re8 Bd8 Re6 Bc7 Nf7 Rc5 Rg6 Rc6 Rg3 Rf6 Rf1 Bg6 Ra1 Rf5 Rd1 Bh7 Kb1 c2+ Ka2 c1B Nc3 Be3 Bd5 Bd4 Rff3 Bg1 Be4 Bg6 Bc2 Bh7 Ba4 Bg6 Bb5 Bh7 Nd5 c3 Nb4 c2 Kb3 c1B Na2 Nc4 Ne5 Bg6 Rdd3 Bd2 Rd4 Qe8 d7 b1Q+ Ka4 Qe7 d8Q Qbc1 Kb3 Qd7 Qg8 Rff6 Qb8 Bb1 Qa8 Rf5 Rdd3 Qe6 Rd8 Qc8 Rg6 Qd7 Rgg3 Qcd1#
3B1r2/Q2b2Bn/7n/P2K1b1r/2NnbqNn/PN4RR/Pnk2B2/bn6 w - - 0 1 illegal: Other
4Nn2/1q1Nrr1q/5PR1/KRRQ1Pnn/n6q/BP2n2n/1N1b3k/2rB4 w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 gxh4 d4 cxd4 f5 b5 axb5 Bb7 f6 Bd5 Be3 Be6 Bc1 Bf5 gxf5 Bg7 Qd3 Bh6 Qd1 Bf8 Kd2 e5 c4 a5 b3 h5 b6 d5 c5 Kd7 c6+ Kd6 c7 a4 c8R e3+ Kd3 e4+ Kc2 Ke5 b7 Kf4 Nc3 Kg3 Kb2 d3 Ka2 d2 Be2 d4 Bb5 d3 Nb1 e2 Rc2 e1Q Nh3 e3 Rc6 e2 Rc8 a3 Rh2 Qe7 Rc2 Rh7 Rc3 Bh6 Rc8 Ra7 Rc5 Qh1 Re5 e1Q Re4 Rf7 Ba6 Nd7 b8N Nf8 Nc6 Qb7 Ng5 h3 Rc4 h4 Qe2 d1N Rf2 d2 Rb4 h2 Bd3 h3 Nb8 Ne3 Nd7 d1N Qf1 Nb2 Ne6 Na4 Nc7 Bg5 Nc3 Nh6 Nd1 Re7 Bb1 Nf7 Qa6 Bh6 Qd3 Ng5 Rb6 Qb4 Bc2 Qh4 Bb2 Rf7 Qd5 Re7 Kb1 a2+ Kc1 Rf7 Kd2 Re7 Rb1 a1R Ba3 Rf7 Rb2 Rc1 Rg2+ Kf4 Rd6 Ngh7 Rg1 Qb8 Re1 Kg3 Qa5 Nd5+ Kd3 Qhb4 Rb6 Bd2 Ra2 Rb7 Ne8 Ne3 Nc5 Rbe7 Nd7 Qbb7 Qd5 Qg4 Rb5 Qg6 Rf1 Qe4+ Ke2 Qh4 Kd3 h1N Re1 h2 Rg1+ Kh3 Rg2 Qg8 Rg6 Ng3 Rb2 h1N Rb1 Nh5 Nb2 Kh2 Bd1 Rc7 Rc1 Ng5 Rc4 Qh7 Rc6 Ng4 Kc4 Rc8 Rc7 Nhf2 Rc6 Nfh3 Rc7 Bc1 Kb4 Ne3+ Rc4 Rc7 Ka5 Rc8 Rc3 Rc4 Rc2+ Bd2+ Rc3 Rb4 Rcc5 Rc4+ Rb4 Rc3 Rbb5 Rc1+
1N5k/RKRbq2P/2n2q1P/q1N3q1/q1BP2nQ/R1N1B2q/4r3/1b1n1b2 w - - 0 1 illegal: No proof kernel
5k1B/4Rr1B/1rPK2Qb/2q2qP1/n2N1Rb1/2Pqq3/1N2bb1B/1N3qb1 w - - 0 1 legal: proof: e4 c5 a4 g5 h4 gxh4 b4 b5 axb5 cxb4 e5 Nc6 e6 Na5 c3 Nc4 d3 fxe6 dxc4 e5 Qe2 e4 Qf3 Qb6 Qd1 Qd8 Ke2 e5 Ke3 h5 g4 d5 f4 a5 b6 b3 c5 h3 c6 b2 b7 h4 b8B a4 g5 a3 f5 a2 f6 h2 Bd2 d4+ Ke2 h3 Ba7 d3+ Ke3 Bh6 Qc1 Rh7 Ne2 Rb8 Ng1 Ne7 Nf3 Nd5+ Kf2 e3+ Kg3 e2 Bc5 e1B+ Bf2 e4 Na3 b1Q Be2 e3 Rf1 h1Q Nc2 h2 Nb4 Nb6 Kf4 Na4 Ke5 Bg4 Qc2 Qg1 f7+ Ke7 f8N h1Q Bd1 e2 Bd4 Rf7 Bf4 d2 Bh2 Rb6 Ne6 Bh4 Qd3 e1B Bc2 d1B Nd2 Qf3 Qe4 Ke8 Nd3 Qc1 Rb1 a1Q Nb2 Qa3 Rf2 Qf1 Qf5 Qc8 Qf6 Qca6 Bh7 Qad3 Qg6 Qb4 Ra1 Qa5+ Kd6 Qff5 Rf4 Bdf3 Nc5 Kf8 Ncb3 Beg3 Rb1 Qce1 Rd1 Qe8 Nb1 Qab5 Bg1 Bh2 Re1 Bf2 Re5 Be2 Re6 Qg3 Bh8 Qgd3+ Nd4 Qbc4 Rf6 Qee3 Re6 Qcb5 Re7 Be1 Bf2 Bg1 Bg3 Bef2 Bh2 Qbc5+
Kr1R3N/6P1/3r2qP/5P2/R1R1BrN1/3nbB1b/r1r2qq1/NQq2k1q w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 gxf4 d4 cxd4 Nc3 f5 Qf3 Na6 Qd1 f3 Nb1 f4 g4 h6 g5 Rh7 g6 Nc7 Be3 Ne6 Bf2 Ng7 Bh4 Rh8 Bg5 Nf5 exf5 hxg5 Kd2 e5 Kd3 Ke7 Kc4 Kd6 b4 a5 h4 e4 h5 Ke5 b6 d5+ Kb5 d3 Kc6 Kd4 c4 Ke3 h6 Kf2 g7 d2 b5 a4 b7 g4 b8R g3 c5 g2 b6 a3 b7 e3 Rh4 a2 Qa4 d1R Bb5 e2 Nc3 e1Q Bf1 d4 Bd3 Qg5 Qa3 Rc1 Bc4 d3 Rh3 d2 Bb5 d1R Rh4 Nf6 Na4 Nd7 Bd3 Rc2 Ne2 g1Q Qb4 Q5g2 Be4 Kf1 Qb1 f2 Kc7 f3 c6 Ra5 Nf4 Bc5 Ng6 Be3 Nc5 Rd6 Nb3 Qc1 Ra8 Ra6 b8N Ne5 Nd7 Bb7 Nf6 Nd3 Ng4 Rb8 Nh8 Ra4 Ne5 Qg6 Ng4 Rad4 Ra4 Qh1 Kb6 Qg2 Ka7 Ba6 c7 Qh1 Ba8 Rf4+ Rd4 Bc4 c8B Qg2 Bcb7 Qh1 Be4 Bd5 Qb2 Bc4 Rb1 a1R+ Qa2 Bb5 Rb2 Ba6 Qb1 Ra2 Na1 Kg2 Rb6 f1Q Nf6 Ne1 Rh2+ Kg1 Bec6 Rdd8 Rhd2 f2 Bf3 Qe2 Ra4 f1Q Ng4 Qef2 Rd6 Qfh3 Bab7 Bf1 Bbe4 Nd3 Rc6 Rd4 Rc4 Qhg3 Rb7 Bh3 Rd7 Kf1 Rd6 Qgg2 Rd8 Rbb2 Ka8 Rd6 Rc7 Rb7 Rc4 Rb8+
N2rn1n1/R3Bk2/2N5/1N1nqb2/1nRK1n2/n2PPQn1/BP4rr/3Br3 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Ra4 Be7 Ra5 g4 Ra1 Bg5 hxg5 fxg3 b6 a5 d3 c5 Kd2 f5 Kc3 h5 g6 h4 b7 a4 g7 a3 Bf4 a2 Bg5 f4 Nd2 g2 Nb3 h3 Qd2 g3 Nf3 g1N Rd1 a1N Bh4 g2 Bg3 h2 Rb1 Qd6 Nfd4 f3 Qc1 f2 Qe1 Na6 b8N Qe5 Bh4 Bf5 Na5 Nh3 Qc1 g1R Bd8 Nc2 Bg5 Rg2 Bf4 Kf7 Bg3 Na3 Qd2 Nc7 Nbc6 Ne8 Rc1 Rd8 Qe3 Nf4 Qf3 Rh4 Rg1 h1N e3 Rhh2 Bh4 Ng3 Be2 f1R Be7 Nd5+ Kd2 Re1 Nb5 Nb1+ Kc2 c3 Nc4 Na3+ Kb3 c2 Bd1 Nb6 Ra1 Nd5 Nb6 c1N+ Ka4 c4 Na8 Ndc7 Kb4 Nd5+ Kc5 c3 Ra2 c2 Rf1 Nc4 Ra7 Na2 Rf2 c1N Rc2 Na3 Rc4 Qb8 Kd4 Nce2+ Kc5 Nef4 Kd4 Nh6 Bb3 Nab4 g8B+ Kg7 Bf7 Ng8 Bh5 Qc7 Ba2 Qa5 Qf2 Qc7 Bd1 Kf7 Qf3 Qe5+
qNk1Nb2/6rP/2NQr3/1b1P2qq/1Kqb1n1B/2BqP2B/1R2b2R/5q2 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 g4 h5 Qb3 h4 Qc2 Nd7 Qd1 Ndf6 h3 Nh5 gxh5 g4 Ra4 gxh3 Ra6 Bd7 Ra1 Bc8 b4 Kd7 d4 f5 Kd2 c5 Kc3 a5 h6 f3 h7 a4 b6 f2 b7 a3 b8B a2 b5 h2 b6 f4 b7 f3 Bg5 h3 Bd2 Nf6 Bbf4 Nd5+ Kc2 c3 Kb3 c4+ Kc2 Ra6 Bg2 f1B Bfe3 f2 Bf4 Re6 Bfe3 Nf4 Qc1 Rg8 Nf3 Rg7 Rg1 h1Q Qa3 h2 b8N+ Kc7 Bh3 Ba6 Qd6+ Kc8 Rg3 Bb5 Ne5 Qa8 Na3 h1Q Rb1 a1Q Rg2 Qa2+ Rb2 Qg5 d5 Qf5+ Kd1 Qd3 Nec6 c2+ Kc1 Qh2 Bc3 Qh1 Rh2 Qf3 Bed2 Qh5 e3 Be2 Bb4 f1Q+ Be1 Qg2 Ba5 Qgg5 Bg3 Qdg6 Kd2 c1B+ Kc3 Qd3+ Kb4 c3 Nc4 c2 Bh4 Bd2+ Kc5 c1Q Bc3 Qf1 Kb4 Be1 N4e5 Bg3 Ned7 Be1 Nf6 Bd2 Rb3 Bc1 Ne8 Bb2 Bd2 Bf6 Bc3 Bd4 Rb2 Qac4#
5NR1/1Rnn1n2/2bNQ1BP/2b1b2p/6r1/1qq1Pn1B/1P2Bk1K/r1Nn4 w - - 0 1 illegal: No possible last move
r2RB3/kbPqqq1N/p4R2/RB2n1PN/2q4P/n4rNq/1Q6/4b1Kb w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 e5 f5 h5 Bf4 b5 axb5 exf4 f6 f3 Qd3 f2+ Kd1 gxf6 Qh3 f5 Qxh5 f4 Qg6 Bc5 Qh7 Bf8 b4 d5 h4 Kd7 c4 Kc7 e4 Kb6 Ke2 f5 g4 d3+ Kf3 a6 Kg2 d4 e5 d2 e6 d1Q e7 f3+ Kh2 d3 e8B d2 g5 f4 Qg7 Nf6 Nh3 Nc6 Nc3 Na7 Ne2 Nd7 Qb2 Ne5 c5+ Kb7 b6 Nb5 Ra4 Na3 b5 Kb8 b7 Ka7 c6 Bb4 b8N Qe7 c7 Rf8 Nd7 Qb3 Bf7 d1Q Ra5 Be1 Be8 Rf6 Nf8 Qbf7 Nh7 Qa4 Bg2 f1Q Ng3 f2 Bgc6 f3 Nf4 Q1c4 Nfh5 f1Q Bcd7 f2 b6+ Kb7 Rg1 Qd1 Bb5 Qfd3 Nf5 f1B Rg4 Qdc3 Kg1 Bg2 Rf4 Qh3 Nfg3 Bh1 Rf1 Rd6 Rf3 Rd3 Rf6 Rf3 Rh6 Rb8 Rf6 Ka8 b7+ Ka7 Rc6 Ra8 b8R Qdd5 Rf6 Bb7 Rd8 Qdd7
nN3rrk/2nr4/2b1qP2/r4BNp/bNP2B2/1P1Q2qR/3K1R2/n1B3q1 w - - 0 1 legal: proof: f4 b5 e4 f5 h4 fxe4 d4 c5 a4 cxd4 axb5 g6 h5 gxh5 f5 Bh6 g3 Bf4 gxf4 h4 c4 Kf7 b6 Kg7 b3 h5 b7 e5 Rh3 a5 Rh1 d5 Nh3 d3 Nd2 a4 Qg4+ Qg5 Nb1 a3 Qg3 e3 Qf2 e2 Nd2 e4 Nb1 d4 Bd2 a2 Bc1 Nd7 b8B Ne7 Ba7 Qg1 Kd2 Nd5 Ng5 h3 Qe1 h2 Qd1 N7b6 Nc3 Rg8 f6+ Kh8 f7 Bd7 f8N Nc7 f5 Ba4 Nfh7 Raf8 f6 Nba8 Rb1 a1N Bb2 e1Q+ Kc1 e3 Bh3 e2 Bf5 Qef2 Bb8 e1Q Nd5 Qfg3 Nb4 Qe6 Qf1 d2+ Kd1 Qa6 Bc1 Qc6 Ke2 d1R Rb2 Re1+ Kd2 d3 Qf3 Re5 Qe4 Ra5 Rc2 Rf7 Nf8 Qe6 Nd7 Rff8 Qe3 Na6 Bf4 N6c7 Kc3 d2 Qd3 d1R Rf2 Rd2 Nb8 Rd1 Qf3 Rd7 Qd3 Qg4 Kd2 Q1g3 Re1 h1B Re3 Bhc6 Ref3 Qg1 Rh3 Q4g3
bB3K2/5B2/2B2P2/1nq3pN/k1nn2br/1NR3P1/bqQr1P1b/1r2R2R w - - 0 1 legal: proof: c4 c5 h4 g5 h5 Na6 b3 Nc7 Rh4 Nb5 Rh2 Na3 Rh3 Nxc4 Rh4 Na3 Bb2 c4 Bd4 c3 Be3 c2 Rh1 c1N b4 d5 Bd4 f5 e4 a5 exf5 axb4 Rh4 Ne2 Rf4 Nb5 a4 Na3 Rg4 Nf4 Rh4 Ng6 hxg6 Qa5 Rh1 Qb6 Ra2 Qc7 Rc2 Qd8 Rc4 dxc4 Ke2 Kd7 Ke3 Kc6 Ke4 b5 Ke5 h5 a5 c3 d3 h4 a6 b3 g7 b4 f6 Kb5 a7 b2 Qc2 h3 Qd1 b3 Qc1 h2 Qf4 c2 Be3 c1Q d4+ Ka4 Qh4 Qb6 d5+ Bg4 d6 Rd8 a8B Nh6 g8R Nb5 d7 Nf5 Nh3 Qbc5+ Ke6 Nfd4+ Kf7 e5 Nd2 b1B Qh7 b2 Bc4 e4 Nb3 Ba2 Bf4 b1N Bc6 e3 Bb8 e2 Nf4 e1R Qc2 Na3 Nh5 Bd6 Re8 Qb2 Re3 Rf1 Rc3 Rb1 Kg7 Bc7 Bf7 Nc4 Re1 Rde8 d8R h1B Rd7 Bh2 g3 Re2 Re7 Bd5 Rh1 Rd2 Ree1 Rh6 Bd7 Ba8 Bc6 Qa7 Kf8 Qb6 Ng7 Rh4 Nh5 Qc5+
1R1brBN1/3k1p1N/Q3nB1b/2b2q1b/1N2P3/1P1r3n/1RKbn1P1/R6n w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 d5 h4 gxh4 cxd5 exf4 e3 f3 Be2 fxe2 Kf2 Qe7 Qe1 Qd6 Qd1 Qd8 Ke1 h5 d4 a5 Kd2 e1B+ Kc2 c5 b3 c4 d6 c3 e4 h3 d5 h2 b6 a4 b7 a3 Qf3 h4 Qd3 a2 Na3 h3 Qf1 Na6 b8R Bd2 Rb5 Nc5 Nb1 Qd7 Qf2 Nh6 Rb4 Ng4 Qf6 Qf5 Ba3 Kd7 Nf3 Nf2 Ng5 Ne6 Nh7 Ra7 Rg1 h1N Rb8 h2 Bc5 Ra4 Na3 Rd4 Rgb1 Ng3 Rb2 h1N Qh6 Rd3 Qg6 Kd8 d7 Nh3 Bb4 Bfh6 Bf8 Ne2 Qf6+ Kc7 d8B+ Kd7 d6 Bde3 Qg6 Bc5 Bf6 Bd2 Kd1 Rg8 Nc2 Rh8 Nb4 Ba6 Bh6 Re8 Kc2 Bb5 Bf8 Bc4 Nc6 Bh6 Ne7 Ba6 Rc1 a1B Ng8 Bd2 Ra2 Bb2 Rca1 Bba3 Qh6 Bab4 Rb2 Ba5 Qe3 Bb5 Qd4 Bd8 Qa4 Bh6 Qa6 Re3 Kd1 c2+ Kd2 c1B+ Kc2 Rf3 Bh4 Neg1 Qa3 Bdb6 Kd1 Bcd2 Qa6 Kc6 d7 Be2+ Kc2 Rd3 d8N+ Kd7 Nc6 Bh5 Nb4 Bd8 Bf6 Ne2
rb4RK/k2N1r2/4Bq1B/P1P1N3/n1rR1PQ1/1p4br/1b4Bn/1N1n1b2 w - - 0 1 legal: proof: d4 f5 b4 c5 e3 cxd4 Bd3 a5 Bf1 axb4 f3 f4 exf4 e5 g4 e4 fxe4 h5 Ba3 hxg4 Bb2 Ra4 Bc1 Ra8 Kf2 g5 Kg3 b5 h4 d5 c4 Kd7 a4 Kc6 c5 Kb7 a5 d3 h5 d4 e5 b3 h6 b4 e6 b2 h7 d2 e7 b3 e8B d3 Bb5 Bd6 Qe2 d1N Qh2 d2 Bbd3 Qf6 Nh3 Nh6 Bde2 Ka7 Na3 b1R Qg2 Ba6 Rg1 Nd7 Bb2 Rc1 Bc4 Bb8 Nf2 Nb6 Nd3 Na4 Be6 Rc4 Ne5 Rf8 h8N Rf7 Nhg6 Bb5 Kh2 g3+ Kh3 Ng4 Nd7 Nh2 Nb1 Ba6 Qe2 g2 Nge5 Bb5 Qh5 g4+ Kg3 Ba6 Qg5 Bb5 Kh4 g3 Kh5 Ba6 Qg4 Bb5 Rh1 g1B Bg2 Bd4 Re1 Ba6 Re4 Bf2 Rd4 Bb5 Bc6 g2 Bb7 g1B Bg2 Bg3 Bc3 Qd8 Kh6 Qb6 Qg7 Qd8 Kh7 Qf6 Kh8 B1f2 Rd3 Bd4 Bb2 Bc3 Rd4 Rb4 Ra2 Bf1 Ba1 Rc4 Rc2 Qf5 Qg4 Bb2 Rc3 Ne3 Rc2 d1R Rf2 Rd3 Rf3 Bh4 Rg3 Qf6+ Qg7 Rdc3 Nd3 Qf5 Rd6 Bc1 Qg6 Rc2 Bg7 Bb2 Rd4 R2c3 N3e5 Nd1 Bh6 Re3 Rg4 Rh3 Qh5 Bf2 Rg8 Bg3 Qg4 Qf6+
3R2B1/b1R1q3/4r1pk/r1nN4/P2nnRbB/q1nP3P/1Nq5/KN1q3Q w - - 0 1 legal: proof: e4 a5 b4 axb4 Bd3 d5 Ba6 d4 Bf1 d3 cxd3 Bf5 Qc2 Bh3 Qd1 Bc8 Qb3 c5 g4 c4 g5 f5 exf5 c3 g6 cxd2+ Ke2 hxg6 Qc2 g5 Qd1 g4 f4 Kf7 a4 e5 f6 Kg6 h3 b5 f5+ Kh6 f7 g6 f6 e4 Qb3 e3 Kd1 e2+ Kc2 e1Q Kb2 g3 Rh2 g2 Qc4 b3 Qc5 b4 Qa7 Nd7 Qb7 Nc5 Nf3 g1N Rf2 Qee7 Bg2 Ne2 Ne5 Bg4 Bd5 Nd4 Nc4 Ra5 Rf4 d1Q Ra2 Bg7 f8R Qdd6 f7 Nf6 Ka1 Nfe4 Rd8 Re8 f8N Bh8 Rc2 b2+ Ka2 Bg7 Bg8 Be5 Ne6 b3+ Ka3 Bf6 Nc7 Bh4 Nd5 Bf2 Bd2 Be3 Be1 Bg1 Nbc3 b1Q Bh4 b2 Qa8 Qbc1 Ka2 b1N Ka1 Qcd2 Rc1 Q2c2 Nb2 Bf2 Nb5 Nbc3 Na3 Qf8 Nb1 Re6 Ne3 Qde7 Qd5 Ng5 Qh1 Nge4 Nd5 Bg3 Rf7 Bb8 Rf4 Ba7 Rf7 Qde2 Rcf1 Qed1 R1f4 Qb7 Rg7 Qbb3 Rb7 Qe7 Rc7 Qa3#
1B1n4/1Nq3RP/3pbN2/nQr1qBq1/2PP1R1B/N4b2/k3nb2/b1bK4 w - - 0 1 legal: proof: b4 b5 f4 e5 e4 exf4 a4 h5 g4 hxg4 e5 a5 e6 d6 Nc3 Ra7 Nb1 Ke7 axb5 c5 Ra3 cxb4 Ra1 Rd7 exd7 Ke6 Nf3 Kf6 Ng1 Ke7 h4 Ke6 d4 Kd5 h5 g5 c3 f5 b6 a4 h6 f3 b7 g3 h7 a3 Ne2 Kc4 Ra2 f4 Bb2 g2 Rh6 g1N Qc1 Kb3 c4 g4 Re6 f2+ Kd1 g3 Bh3 f1B Nbc3 f3 Rf6 g2 Rf5 f2 Qa1 Qg5 d8N Ne7 Bg4 Bh6 Nd5 Nbc6 b8B Na5 Qb1 Nec6 Bh5 Be6 Nec3 Ne2 Nb5 g1B Bf3 Bg2 Nb7 Nd8 Ra1 a2 Bg4 Bf3 Rf4 f1Q+ Kd2 Bf2 Bf5 Qe1+ Kd3 Rf8 Na3 Rf7 Rh4 Rc7 Nf6 Rc5 Rf4 Rd5 Qc1 Rc5 Rb1 a1B Bc3+ Ka2 Kc2 Bd7 Qe3 Be6 Qe5 b3+ Kd3 b2 Kc2 Qeg1 Be1 Qh2 Kd1 Qhh5 Rc1 b1Q Qd5 Qb4 Qc6 Qb6 Qb5 Qc7 Rc3 Bg1 Bh4 Bf2 Rd3 Bc6 Rg3 Bf3 Bd3 Qe5 Rg7 Qhg5 Bf5 Qg6 Rg4 Bc1 Rf4 Qg5
b1r2Nb1/1Rn2nrQ/2K1b2B/b3brnp/N1kNP3/4P3/P1b4B/1R4B1 w - - 0 1 legal: proof: c4 a5 b4 axb4 h4 d5 cxd5 g5 d6 gxh4 Rh3 e6 Rh2 Bg7 Rh1 Bf8 e4 Kd7 d4 Qf6 d5 Qd8 Bc4 Qg5 Bb3 Qe3+ fxe3 Kd8 d7 Ke7 Bc4 Kd6 Bb3 Kc5 d6 Kc6 Bd5+ exd5 Ke2 Kb5 Kf3 f5 d8B c5 g4 h5 d7 d4 g5 b3 g6 b2 g7 f4 Be7 d3 d8B h3 Bd2 c4 Qe2 c3 Bf6 h2 Bg5 c2 Nh3 c1B Nc3+ Kc4 Bb6 b1R Ng1 Na6 Qf2 Rh7 Nd1 Be6 Qg3 Bb2 Ba7 b5 Bh4 b4 Qg5 b3 Bc1 d2 Qd8 Nc7 Qe7 Rc8 Bb6 Be5 Ba3 b2 Nc3 d1B+ Nge2 Bb3 Na4 Nh6 g8N Nf7 Nf6 Rf1+ Bf2 b1B Nd4 Rg7 Nh7 B1c2 Rb1 Bd5 Qd7 Bb4 Nf8 Ba8 Ba7 Be1 Bb8 Ba5 Rg1 h1N Rg4 Re1 Bg1 Nf2 Qf5 Re2 Qh7 Nh3 Be7 Re1 Bg5 Rf1+ Ke2 Rf3 Bh6 Rf1 Rg6 Nhg5 Rb6 Rf3 Rb7 Rf1 Nc3 f3+ Kd2 f2 Ke2 Nd5 Bd6 Nc7 Na4 Bf6 Bg3 Be5 B3h2 Rd1 Nf3 Rd5 Nd4 f1B+ Kf2 Bf6 Kg3 Bh3 Kf4 Be6 Qg8 Ne5 Qh7 Bg8 Kf5 Nef7+ Kf4 Be5+ Kf5 Bd6+ Kf6 Bf4 Ke7 Rf5 Kd7 Be5 Kc6 Kd3 Nf3 Be6 Nd4 Kc4
2NbQ2K/r1rB1b1R/1NP1pqB1/3rP3/1BP5/3rrqR1/N4k2/3nb1b1 w - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 g5 a4 h6 g4 Na6 c4 gxf4 Qd5 Nc7 Qg5 b4 b3 Nb5 axb5 h5 Qf5 Qb6 g5 Qa5 Qg4 hxg4 Na3 Qd8 Nb1 Rh3 Na3 Rxb3 Nb1 Rh3 Ba3 Rh5 Bc1 Rh8 Kd2 d5 Kd3 Kd7 Kd4 Ke6 h4 Kf5 b6 a5 b7 a4 b8Q g3 e4+ Kg4 Ke5 f5 g6 a3 h5 a2 h6 f3 c6 b3 h7 b2 g7 d4 Be3 d3 Bc1 g2 Ne2 g1B Rh3 f2 Nd2 b1R Qd6 f4 Nb3 f3 Nbd4 d2 Rh5 d1R Ba3 Rb3 Ne6 Nf6 g8B Re3 Rc1 a1B+ Rc3 Nd5 Qd7 Ra7 Nc1 Kg3 Nc7 Rdd3 Qe8 Be6 Bh3 f1R Bb4 f2 Na8 Bf7 Bd7 e6 Nb6 Be7 Na2 Rfd1 Rh4 f1Q Rh1 Bg6 Bf7 Kf2 Rh6 Rg8 h8N Rg7 Rh7 Bh5 Ng6 Qh3 Nc1 Qf3 Na2 Bg5 Ne7 Bb2 Bg8 Bf7 Nec8 Bc1 Rb3 Bd2 Ra3 Be1 Rc3 Bg6 Bf7 Bh5 Rb3 Nc3 Bg6 R1d2 Ra3 Nd1 Rb3 Re7 Rc3 Bf4+ Kf6 Bc7+ Bf5 Bg6 e5 Bf7 Kg7 Rd5 Bg6 R2d3 Qg8 Qf8+ Kh8 Bd8 Rb3 Be8 Rc3 Rg7 Rb3 Q8f6 Qf8 Bf7 Qe8 Kf1 Rb2 Rc7 Rg2 Ra7 Rg4 Kf2 Rg3 Bg8 Qe7 Q6f4 Bde8 Qf5 Qf8 Rgc7 Bd7 Bf7 Qe8 Qf6+
B2N4/K1r1P2N/2B1q2R/2qb1r1b/Q1NP2R1/4P1b1/2rqp3/1b1n1kqR w - - 0 1 illegal: No possible last move
1r3BrR/1PQ4p/2P1r1P1/2bR1K1n/n1q4R/2B1NnN1/3n4/1Nkn1nr1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 g3 Ba3 Bg2 Qg5 Bf3 gxf3 g4 Bd6 Ra6 Bb7 Ra1 Qd8 h3 Be4 g5 Bf5 Ra5 Bg4 hxg4 Bc5 Ra1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 c4 Kb4 e3 f5+ Ke5 d5 e4 a5 c5 d3 g6 d2 b6 f2 c6 f1R g7 f3 g5 f2 g6 a4 b7 f4 b3 a3 Ra2 f3 Nh3 d4 Ra1 a2 Ng1 d3 Bb2 Bc5 Ne2 Nd7+ Kf5 Rb8 e5 Qh4 e6 Re1 e7 f1N e8R f2 Ng3 Qc4 Rh4 Ngf6 g8N Re6 Nh6 Nh5 Ng4 Ne5 Ne3 Nf3 Qe2 d1N Bc3+ Kb5 b4 Ka4 b5 Kb3 b6 d2 Qd3 Nb2 Qd6 d1N Qc7 Na4 Rd8 N1d2 Rd5 Rbg8 b8B f1N Ba7 Rb8 b7 Rhg8 Bb6 Ndb2 Bba5 Nd1 Bcb4 Kb2 Bc3+ Kc1 Bab4 Bb6 Bf8 Bc5 Bb4 Ra8 Qf7 Kb2 Rhd4 Nf2 Qc7 Nc3 Be7 Rgd8 Qa5 N1h2 Na3 Rh8 Qc7 Rhc8 Rc1 a1R Rg1 Re1 Rd8 Na4 Rh1 Rg1 Bc3+ Kc1 R4d5 Nhf1 Rh8 Rd8 Nb1 Rab8 Rh4 Rg8 Bf8 Nd1
5k2/P1qn3n/rBNpR3/KB1rrrQ1/n1P1r3/1R1Bq3/N2R2Pr/7r w - - 0 1 illegal: No possible last move
1q2nqN1/b1bk1Bq1/rP1PNR2/3R4/pKr1Q1n1/2B2r2/P5p1/1R1N3n w - - 0 1 legal: proof: f4 f5 g4 b5 c4 bxc4 e4 d6 e5 dxe5 Be2 exf4 Bf1 f3 h3 g5 Bd3 Be6 Be2 Bf7 Bf1 Bh5 gxf5 g4 Ne2 g3 Ng1 Bg4 hxg4 Qc8 Qa4+ Qd7 Qd1 Qd8 b4 c5 d4 a5 Kd2 e5 Kc3 h5 f6 h4 g5 h3 g6 h2 f7+ Kd7 b5 f2 d5 e4 g7 g2 Qf3 e3 Qh5 a4 Be2 f1Q Nf3 Ra6 Ne1 Bd6 f8R Nc6 Qg6 Nf6 g8N Qb8 Qe4 Ne8 Nd3 Rh3 Bd1 e2 Rf5 e1B+ Nd2 Ne5 Bg4 Bf2 Nb1 Bc7 d6 Rf3 Bh5 Ng4 Rf6 Be3 Rg1 h1N Nf4 Qf2 Bf7 Qf1 Kc2 c3 Bd2 c4 Ne6 Ba7 b6 Qf2 Rd1 Qg3 Kc1 c2 Kb2 c3+ Ka3 c1Q+ Kb4 c2 Bc3 Qcf4 Rd5 c1R Bd4 Rc6 Nc3 Qh6 Nd1 Qf8 Bc3 Qe5 Rb1 Rc5 Rg6 Qeg7 Rf6 Rc4+
2rQ1q2/R1r1nk1p/P1NB2R1/b2qq2P/bP6/BnNK1N2/2B1p3/rb6 w - - 0 1 legal: proof: Nf3 b5 Ng1 b4 c3 a5 cxb4 a4 b3 axb3 d4 d5 e4 dxe4 g4 f5 gxf5 c5 Ba6 cxd4 Be2 Na6 Bf1 Nb8 Kd2 g5 h4 e5 f4 g4 a4 g3 h5 b2 f6 e3+ Kd3 g2 f5 e2 a5 e1Q a6 e4+ Kc4 d3 Qc2 e3 Qd1 d2 Nc3 b1B Nf3 g1R Ba3 Bc5 Bd3 Ne7 Bc2 Nd7 Kd3 Ra7 f7+ Kf8 Rh3 Rc7 Rg3 Bb6 Rg6 e2 Ra2 Qg3 Rb2 Qe5 Rb3 Nd5 Rg7 Ke7 f8B+ Kf6 Bc5 Qf8 Bd6 Ne7 Rg6+ Kf7 f6 Ba5 Rg7+ Ke6 f7 Rh1 Qg1 Bb7 Qb6 Bc6 Qb8 Ba4 Qd8 Qe8 f8N+ Kf6 Rg4 Kf7 Ne6 Qf8 Rg6 Rd1 Ned4 Nc5+ Kc4 Rg1 Nc6 d1Q Rb2 Nb3 Ra2 Qc1 Kd3 Qcg5 Ra1 Ba2 Rd1 Bb1 Kc4 Qgf5 Rd5 Qfe6 Kd3 Rg8 Rb5 Rf1 Rb7 Q6d5+ Nfd4 Rh1 Ra7 Qh6 Rg3 Ba2 Rg6 Ra1 Qc8 Bb1 Qd7 Rgc8 Qd8 Qde6 Nf3 Qhg7 Nd1 Qf8 Nc3 Q6d5+
2K2Q2/P2nppRB/q2b1n2/2bR1rB1/2bnBn2/1rP3N1/2R1n1PN/6k1 w - - 0 1 legal: proof: d4 g5 f4 a5 fxg5 c5 h4 cxd4 b4 axb4 h5 Qb6 e3 Qg6 hxg6 dxe3 Ke2 d5 Kd3 Kd7 Kd4 Ke6 Kc5 Ke5 Kb6 Kf4 Kc7 Kg3 a4 Kf2 c3 h5 a5 b5 a6 d4 a7 e2 g7 e1B g6 h4 Ra6 h3 Qa4 b3 Rb6 b4 Nf3 h2 Ba3 b2 Qa5 d3 Rg1 h1N Re6 d2 Re3 d1N Bc4 b3 Ba6 Rh5 Kd8 Nf6 g8B Rf5 g7 Be6 Rd3 Ng3 Bh7 Ne3 g8R Nbd7+ Kc7 Ned5+ Kb7 Rb8+ Kc6 Bh6 Rg6 Be3 Nh2 Bc5 Nd2 b1Q Ndf1 b2 Bb7 Ne2 Rg7 Qa2 Qd8 b1N Bc1 Na3 Bg5 Nc2 Qf8 Qc4 Ba8 Rb3 Rd4 Bd2 Ng3 Bf4 Rc1 Bfd6 Bb7 Ndf4 Rd2 Ne1 Rcc2 Kg1 Rd3 Nf3 Ba8 Ra3 Kb7 Rb3+ Kc8 Qa6+ Bb7 Bc4 Rdd2 Qa3 Be4 Qa1 Rd5 Nfd4 Ng4 Qa2 Nh2 Qa6+
b4Q2/n2N1rNK/nB2N1b1/B3rP2/pb2PR1p/q1n2PBn/8/1R1r3k w - - 0 1 legal: proof: g4 e5 h4 b5 a4 f5 axb5 c5 gxf5 g5 d4 exd4 Bh3 gxh4 Bg2 c4 Be4 Ne7 Bd3 cxd3 Ra4 Ng8 Ra3 Be7 Ra1 Bf8 Kd2 Ke7 e4 Kf6 b4 Ke5 c4 Kf4 b6 a5 b7 d5 c5 h5 b5 h3 c6 h2 b6 a4 c7 h4 Nc3 Ne7 Qe1 Ra7 Rb1 Na6 b8B Nc6 b7 Bb4 Ne2+ Kf3 Ng3 Kg2 Rf1 h1N Nh5 Qd6 Ng7 Re8 Bb2 Bd7 c8N Re5 Bc7 Qc5 b8B Rb7 Ne7 Na7 Ng6 Bc6 Ba5 Rf7 Nf8 Ba8 Nd7 Qe7 Bbc7 Qd6 Bcb6 Qc5 Kd1 d2 Ke2 d1N Nb5 Nc3+ Kd3 Qf8 Nc7 Qd6 Kd2 d3 Ke3 d2 Kf4 d1B Kg5 d4 Nce6 d3 Kg6 d2 Kh7 Bh5 Bc1 d1R Bf4 Qd3 Bg3 Qf3 Qd2 Qe3 Qd6 Qc1 f3 Nf2 Qf8 Nh3 Rf2+ Kh1 Rg2 Ne2 Bh2 Qe3 Rg4 Qa3 Bg3 Nc3 Rf4 Bg6+
K4k2/N5q1/b1P1p2R/2pP1PnB/1RN1b2B/6q1/rnq1B1Qq/2Nrq3 w - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 d4 gxh4 d5 a5 Be3 axb4 Bf4 Bg7 Bc1 Bf8 c3 c5 Bb2 Qc7 Ke2 Bg7 Bc1 Bd4 Ke1 Qc6 dxc6 d5 Qb3 Bf6 Qd1 d4 Ne2 d3 Ng1 Bd4 cxd4 Bf5 Nf3 Bg4 Ng1 Bc8 Kd2 b5 Ke3 h5 f4 h3 a4 b3 g4 b4 g5 e6 a5 b2 f5 h4 a6 d2 a7 h2 d5 b3 g6 h3 g7 Ba6 Na3 b1B Qe1 d1Q Nc4 b2 Ne2 Nd7 Qf2 Qb3+ Nc3 Ne5 Qg2 Nd3 Be2 Nh6 g8B Kf8 Ra4 Nf7 Rb4 Ng5 Bf7 Bc2 Bfh5 b1Q Bd2 Nb2 Kf4 e3 Ke5 Be4 Kd6 Q1c2 Na2 Qbc3 Kc7 Qg7+ Kb6 Rh6 Nc1 Rg6 Bd1 e2 Be1 Rh6 Bg3 e1Q Bh4 Qg3 Bde2 Rh8 Rd1 h1Q Rg1 Rc8 a8N h2 Nc7 Ra8 Nb5 Rh6 Rd1 Qhe1 Na7 h1Q Rd3 Qhh2 Rf3 Rh8 Rf4 Nh7 Rg4 Rg8 Rg6 Ng5 Rh6 Bc8 Nb5 Ra2 Na7 Ba6 Nc8 Qg6 Ka7 Rg7+ Ka8 Rb7 Na7 Qg7 Ra4 Rb3 Rb4 Rd3 Be8 Rd2 B8h5 Rd1
2kqbn1N/2BN4/8/pB2r1rq/3R1n2/N2PPB1P/pr1Q1Kqb/4R1r1 w - - 0 1 legal: proof: b4 b5 c4 d5 g4 h5 a4 bxa4 cxd5 hxg4 f4 c5 bxc5 e5 Bh3 exf4 Bg2 Qc7 Bf1 Qd8 h3 Kd7 e3 a5 d3 g5 d6 f5 Ba3 g3 Bb4 g4 Ne2 a3 Qc1 f3 Qc2 a2 Qb2 g2 Nd4 g1R Qg2 f4 Kf2 g3+ Ke1 f2+ Ke2 Nf6 Nf3 Rh5 Na3 Re5 Rc1 Nd5 Rc4 Ra6 Bc3 Rb6 Rd4 Bg7 Qh2 g2 Ba1 Bb7 c6+ Kc8 c7 Bc6 Bc3 Be8 d7+ Kb7 c8B+ Kc7 Bd2 Rb2 Ba6 Bf8 Bb5 Bd6 Ng5 Kb7 Nf7 Kc7 Nh8 f3+ Kd1 Kb7 Be1 Nf4 Be2 f1Q Nb1 f2 Bf3+ Kc7 Na3 Qc8 d8N Nd7 Nc6 Qd8 Nb8 Nf8 Nd7 Kc8 Qg3 Bc7 Qg8 Bb8 Qb3 Bc7 Qb4 Bd6 Qd2 Qe2+ Kc1 Rb1+ Kc2 f1Q Bg3 Rb2+ Kc3 Qff2 Bh2 Qfh4 Bg3 Qh5 Bh2 Rgb1 Re1 g1R Bg3 Qg2 Bh2 Rb3+ Kc2 R1b2+ Kd1 Rc3 Bg3 Rcc5 Bh2 Bb8 Bg3 N4e6 Bf4 Rg5 Bd6 Rce5 Bc7 Qgg4 Ke2 Qe4 Kf2 Nf4 Bd1 Qc6 Rf1 Qh1 Bf3 Qg2+ Ke1 Ref5 Bb6 Be5 Bc7 Nd5 Nb8 Bh2 Nd7 Qgg4 Ke2 Re5 Kf2 Nf4 Re1 Qg2+
1n3r1R/pN5r/rqpr1q1B/1kbB1Q2/b1n1PR2/P2q2N1/R4P2/2N1K3 w - - 0 1 legal: proof: b4 c5 bxc5 Qb6 c6 Qd8 c7 Nc6 Ba3 Nb8 Bb2 Na6 Bc1 Nb8 c4 Na6 g4 Nb8 c5 Na6 c6 dxc6 Qb3 Nb8 Qc2 Qd6 Qd1 Qd8 e4 e5 d4 exd4 Qc2 h5 gxh5 f5 Qd2 f4 Qe3 fxe3 h4 Kd7 h6 g5 h5 b5 h7 d3 h6 b4 Nf3 g4 Be2 b3 Nbd2 g3 Bf1 g2 Nb1 g1R Na3 d2+ Kd1 b2 Rh3 b1Q Rg3 Nf6 Nd4 Qb6 Rg7+ Kd6 Nc4+ Kc5 Nf5 Na6 Ng3 Ne8 Na5 Qf6 Rg4 Be6 c8Q Nd6 Nb7+ Kb4 Ke2 Bb3 Qf5 d1R Rh4 Rd5 Rg4 Ra5 a3+ Kc4 Bd2 Ba4 Ra2 Re8 Bc1 Nb8 Bd2 Ra6 Rh4 Rg8 h8N Rd8 h7 Rh1 Ng6 Rh3 Ne5+ Kb5 h8R Rd7 Rf4 Rhh7 Rh4 Be7 Rg4 Rf8 Nd3+ Qe5 Ke1 e2 Bh6 Rdd8 Kd2 Rd7 Qe6 Qf6 Nc1 Rdd8 Bh3 Rd7 Rf4 Nc4+ Ke1 Rdd8 Qd7 Bd6 Be6 Bc5 Qd5 Rd6 Qf5 Qg5 Bd5 Qf6 Nb3 Nb2 Kd2 e1Q+ Kc2 Qf1 Kd2 Qb1 Nc1 Qd3+ Ke1 Nc4
2k5/3rB1r1/2n1p3/RPKq1R2/1Bp2nQP/1bP5/b3N1N1/1nNBnnn1 w - - 0 1 legal: proof: f4 b5 a4 g5 e4 d6 e5 dxe5 axb5 exf4 h4 f3 g3 gxh4 Qe2 h5 Qd1 h3 Ra5 h2 Ra6 Bg4 Ra1 Bc8 Ne2 h4 Ra5 h3 Ng1 Bh6 Ra3 Bg5 Ra1 Bh4 gxh4 Rh5 Be2 Rh6 Bf1 Rh8 Kf2 Kd7 Ke3 c5 b4 a5 d4 f5 c3 a4 d5 f4+ Kd3 a3 Kc4 a2 b6 f2 b7 f3 d6 Ra7 b5 Rh7 Qc2 Nf6 Qb2 Nh5 Bd2 Rg7 Be2 f1N Qa3 f2 Bh6 Nf4 Nd2 Nc6 b8B e6 Nb3 Bb7 Qa4 Kc8 Nf3 Qg5 Rg1 h1B Nc1 h2 Ne1 Bf3 Rg2 h1N Bd1 Nhg3 Bc7 Nge2 Ba5 Be4 Bb4 Bb1 Rg1 Qe5 Rg5 Ng1 Ng2 Ba8 Rh5 Rad7 Bg5 Qf5 Be7 Qg5 Kb3 Nd2+ Ka3 Qd5 Re5 f1N Rf5 Ra7 d7+ Kc7 d8N Kc8 Ne2 Rd7 Nf7 Bc2 Ne5 Bb3 Nd3 Bb7 Rb1 a1N Ndc1 Ba2 Rb2 Bb3 Ra2 Nc2+ Kb2 Ne1 Ka3 c4 Qa7 Ba6 Qd4 Bb7 Qe4 Ba8 Ra1 Ba2 Qf3 Bb7 Qg4 Nb1+ Ka4 Nd8 Ka5 Nc6+ Kb6 Qe4 Nb3 Nd4 Bc2 Qf3 Nbc1 Be4 Rf7 Nc6 Bb3 Bc2 Rf5 Qd5 Ba4 Nbd2 Bb3 Bab1 Ra5 Ba2 Ba4 Nb1 Bb3 Be4 Bd1 Bd3 Bd8 Bc2 Bde7 Qd2 Kc5 Bcb3 Bd6 Qd3 Be7 Qd5+
KNB3rq/r1pr4/2RRPPr1/N2b1r2/2nQpR2/4BqP1/3N4/n3kn2 w - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 b5 axb5 g5 Ra2 gxh4 Ra5 Qd5 Ra1 Qd8 e4 e5 d4 f5 Bd3 Bg7 Be2 fxe4 Bf1 e3 Qb3 e4 Qd1 Be5 dxe5 Bg4 Nd2 Bh3 Nb1 Bc8 Ke2 Ke7 b4 Ke6 f4 Kf5 b6 Kg4 f5 Kg3 e6 h5 b5 a5 f6 c3 b7 a4 b6 c2 Ra3 h3 Qd5 h4 Qd3 h2 Qb5 h3 Bb2 c1R Nf3 Rh7 Ng5 Nd7 b8N Ne7 b7 Rc5 Rd3 a3 Qa4 a2 Qb4 a1N Qc3 Qh8 Bc1 Nb6 Na3 Nf5 Nf3 Rd7 Qd4 Nc4 Nd2 Re5 Rg1 h1Q Rc3 h2 Rd3 Nb6 Nac4 Rc5 Na5 Nc4 Qb2 Ra7 Rd6 Ra8 Qd4 Rd5 Kd1 Kf2 g3 Qf3+ Be2 h1R Rf1+ Kg2 Ke1 Rh6 Bd3 e2 Rc6 Qh5 Rf4 Qf3 Rd6 Nfe3 Rc6 Na3 Ba6 Rg6 Rd6 Nf1 Rc6 Rf5 Rd6 Qfh5 Rc6 Kh3 Kf2 e1R Rd6 Re3 Rc6 Rb3 Rd6 Nh2 Rc6 Rb4 Ke3 Kg2 Rd6 Nb5 Nbc6 Rfg5 b8R Rb3+ Qc3 Qg8 Nf3 Kf1 Rb6 Rf5 Bb7 Na3 Kd4 Qd8 Be3 Qdh8 Nd2+ Ke1 Qc5 Nc4 Qb4 Ne5 Kc5 Nf1 Qd4 Qf3 Ba6 Bb7 Kd5 Qh3 Kc5 Rf8 Nb8 Bd5 Bc8 Rfg8 Ra6 Nc4 Rab6 Ra3 Kb5 Ra4 Ka6 Qh8 Ka7 Rb4 Rbc6 Rb7+ Ka8 Ra7+
1K4N1/pN1N2B1/1n3R1p/1B2nn2/Q1PP2B1/bnrq4/nqP3k1/5rrR w - - 0 1 legal: proof: f4 d5 h4 b5 a4 bxa4 d3 c5 h5 e5 h6 exf4 Kd2 d4 Ke1 c4 dxc4 d3 Ra3 d2+ Kf2 Bf5 Ra1 Bd3 exd3 gxh6 Kf3 h5 Ke2 h4 Kf3 Kd7 Ke4 Ke6 g4 a3 b4 a2 d4 f3 b5 f2 g5 h3 g6 h2 g7 Nc6 b6 Nge7 g8B Ne5 b7 Nd5 b8N Qb6 Nh3 Qb2 Rg1 h1N Nd7 Nb6 Be2 f1Q Nf2 Rc8 Qe1 d1N Qa5 Ba3 Bh6 Rd8 Nd2 Nc3+ Ke3 Kf5 Ng4 f6 Bd5 Ng3 Nb3 Rdg8 Qa4 Rg7 Rc1 a1N Nbc5 Nb3 Rh1 Na2 Nb7 Rg5 Bg7 h6 Bc6 Rf8 Bef3 Qh3 Kf2 Kf4 Rcf1 f5 Bb5 Rf7 Bd1 Ke4 Be2 f4 Bd1 f3 Ngf6+ Kf4 Ng8 Kg4 Ke3 Kh4 Re1 f2 Re2 f1R Rf2 Rf6 Bh5 Rfg6 Rf6 Nf5+ Ke4 Rgg1 Bf3 R6g3 Bg4 Na8 Kd5 Rc3 Ke6 Kg3 Kd5 Nb6+ Ke6 Nd6 Ke7 Kg2 Kd8 Qe3 Kc7 Nf5 Kb8 Qd3
3q2R1/b4NNr/1R1P4/K1nPn2b/4qBpn/1N2qQP1/2k2B1p/q3bB2 w - - 0 1 illegal: No possible last move
2RR2Kb/2qqP3/Nk3p1n/3pn3/2Q1r3/4NrqP/PB1BB2n/2r1R2q w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 g4 b5 d4 c5 Kd2 cxd4 Ke1 h5 gxh5 Ba6 Qc2 axb4 Qd1 b3 Be3 b4 Bc1 Bb5 cxb5 Qa5 Bd2 Qc7 Bc1 Qd8 Kd2 g5 Kd3 g4 Ke4 f3 Kd5 d3 e4 f6 h3 b2 b6 g3 b7 b3 e5 f2 e6 d2 e7 g2 h6 Qc7 h7 Bg7 Qc2 d1Q+ Qd3 Ra3 Rh2 Nh6 Nd2 b1Q Be2 f1N Nc4 b2 Nf3 g1Q Bd2 Qgg3 Ne3 Ng4 Ne1 Nc6 b8B Nce5 N1c2 d6 Qe4 Kd7 Qc4 Rc8 Ba7 Bh8 Nb4 Ra8 Rh1 Nfh2 Bd4 R8a4 Re1 Kc8 Ke6 Kb7 B4c3 Kb6 Na6 Qe4 Rb1 Qh1 Rc1 b1R Bb2 Rb4 Rc2 Rc1 Rc3 Qa4 Rc2 d5 Rc3 Nd7 Kf7 Nde5+ Kg8 Qad7 Rc2 Bg7 h8R Rba4 Rh7 Bh8 Rf7 Rb4 Rf8 Rc3 Rd8 Rcb3 Nf5 Rf3 Ne3 Ra4 Qd3 Re4 Rc4 Qb7 Rcc8 Qbc7 Qc4 Nh6+
5b2/1PP1b2q/1r2q3/KRr1Np2/1BrP1k2/pBR4R/Qqb1b2N/3N1n2 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 c4 e5 h4 exf4 Kf2 gxh4 Ke1 d5 axb5 Nd7 Nf3 dxc4 Ng1 c3 Ra5 c4 Ra1 Nc5 bxc5 Be6 Ra3 Bf5 Ra1 Bc8 e4 Kd7 d4 Ke6 g4 h5 c6 a5 b6 c2 Kd2 c3+ Kd3 f3 Kc4 h3 Kb5 a4 c7 f2 e5 h2 g5 Kf5 b7 h4 e6 h3 e7 a3 e8R Ra6 g6 Ne7 g7 Qd6 g8N Rh5 Qe1 Qe6 Kb4 Nd5+ Kb5 Rb6+ Ka4 Ne3 Bb2 c1Q Qd2 c2 Nf6 Kf4 Nc3 Rc5 Bc4 f1B Ng4 Be2 Bb3 f5 Ne5 Bd7+ Nb5 Be7 Bc3 Qb2 Ka5 c1B Bb4 Rc4 Nc3 Ba4 Qc2 Nf1 Ngf3 Be3 Rc1 Bd2 Rg1 h1R Rh8 h2 Rh3 Be1 Qb1 B1h4 Nd1 Bf8 Rg2 Bhe7 Rc3 Rg1 Qa2 h1Q Rh6 Qh5 Nh2 Qhf7 Rgg6 Qh7 Rhh3 Rg3 Rgh6 Rd3 Rf6 Rd2 Rg6 Rc2 Rgh6 Qef7 Rc6 Qe6 Rc5 Rc1 Rb5 Rc5 Bc4 Bc2 Bb3 Be4 Rcg3 R1c4 Rc3 Bc2
4b2R/1Rb1r1p1/bN5P/q3P2n/1bB1p2k/1BBKPnbq/2Q2b2/N2N4 w - - 0 1 illegal: No possible last move, all moves rejected
2b2Rn1/3NqP2/1q3Pb1/1PrnN2N/2p5/QBk2B1p/2Bnnb1b/1K2R3 w - - 0 1 legal: proof: c4 d5 e4 dxc4 f4 f5 exf5 g5 a4 b5 f6 bxa4 b3 Bd7 f5 Be6 Bb2 Bc8 h4 a5 g4 Bh6 h5 Bg7 Be5 Bf8 Bf4 gxf4 g5 Nh6 Ra3 Rg8 Ra1 Rg6 hxg6 Ng8 Ke2 Bb7 Kf2 Bc8 Ke1 Qd7 Nc3 Bb7 Qg4 Nc6 Kf2 Nh6 Rh4 Kd8 Nb5 Bg7 Rh2 Rc8 Nd6 Nb8 Ne4 Qd3 Rh1 Kd7 Qd1 Rh8 Bh3 Ke8 Bf1 Bc8 Nc3 Bf8 Nb1 Ng8 Ke1 Qd8 d4 Kd7 Kd2 Kd6 Kc2 Kd5 f7 h5 f6 e5 b4 c5 g7 a3 b5 c3 g6 c4 Qg4 a4 Qg3 a2 Qe3 e4 Qe1 e3 Rh3 f3 Nd2 f2 Rh4 a3 Qc1 e2 Ndf3 e1Q Bg2 f1B Ne2 Qb6 Ng3 Nc6 Rb1 Be2 Ne5+ Bf3 Rg4 a1B Nd7 h4 Nh5 a2 Qa3 Qe7 Re1 h3 Rge4 Be2 Bf3 Nb4+ Kc1 c2 Re3+ Kd6 d5 Be5 Re4 a1N Rg4 Nh6 g8B Bd3 g7 Bh2 Bh7 Bg6 g8B Nb3+ Kb2 c1N Rgg1 Bb1 Bc2 Nd2 Bb3 Bg6 Bh7 Ne2 Rg4 Ng8 Rd4 Bb1 Bhc2 Bh6 Ka1 Be3 Rg4 Bf2 Re4 Qed8 Re8 Qe7 Rf8 Rh6 Bd1 Bg6 Bdc2 Nf1 Kb1 Rh7 Nb8 Kc5 d6 Kd4 d7 Kc3 d8N Nd5 Nd7 Rg7 Nc6 Rh7 Ng3 Rh4 Nh5 Nd2+ Ka1 Re4 Ka2 Re6 Nce5 Rc6 Ka1 Rc5 Ka2 Ne4 Kb1 Nd2+
2R5/k3qpN1/2RNbb1B/Nn1P2B1/1RKqn3/1P2P2b/2b1pq2/1Q2q2r w - - 0 1 legal: proof: e4 b5 d4 d5 h4 dxe4 a4 g5 axb5 gxh4 Be2 c5 Bd3 c4 Kf1 cxd3 Qd2 e5 Qf4 a5 Ra2 e3 Qf6 e4 Ra1 Ra7 Qf4 Re7 Qf3 Re6 Qd1 Re7 Nf3 e2+ Kg1 e1Q+ Kh2 e3 Ng1 e2 Bd2 Re4 Bc1 Re3 fxe3 Qd7 Ra4 Qe7 Ra1 Qd8 g4 Kd7 Kg2 Kc7 Kf3 Kb7 Ke4 h5 c4 h3 d5 h2 Kd4 a4 c5 a3 b3 d2 b6 a2 g5 h4 g6 h3 g7 Qd7 c6+ Ka6 c7 Qf5 b7 Be6 c8N Qc2 Nf3 Qc7 Ng5 Be7 Ba3 Qf2 Nd6 Nc6+ Kc4 Bf6 b8B Qe7 Rg1 h1Q Rg4 h2 Re4 Bd7 Ne6 Qhe1 Qc1 d1B Nd2 h1B Qb1 Bg2 Rf4 Nh6 g8R Bh3 Rc8 Ng8 Ng7 Bde6 Bc7 Bc2 Bd8 Ka7 Bb2 Bh4 Bf6 Rh5 Bg5 Nd4 Bh6 Nf6 Rc6 Ne4 Rc8 Qe8 Bdg5 Qe7 Kb4 Nc5 Qc1 Bb1 Bf6 Bhg4 Qb2 Bd3 Rc1 a1Q Qb1 Nb5 Rd4 Ne4 R1c6 Bc2 Rdc4 Qd1 Rd4 Qdg1 Nc4 Bg5 Na5 Rh1 Rdc4 Bh3 Rd4 Bf4 Rdc4 Be5 Bfg5 Bf6 Rd4 Ng3 Kc5 Qge1 Rb4 Ne4+ Kc4 Qd4+
2Q3nB/1Pb1R1p1/b2BNb1R/1N1NPK2/2BnrP2/5q1p/1b5k/nn2q3 w - - 0 1 illegal: No proof kernel
B4NQ1/R4p1K/P1p1r3/4qRqb/1q1RrP1n/3rq1rB/1N2q1P1/k2B4 w - - 0 1 legal: proof: d4 e5 b4 exd4 c3 b5 Qa4 a5 Kd2 axb4 Qd1 b3 Nh3 b2 Ng1 b4 Ke1 b3 Qd2 Bd6 Qd1 Bb4 cxb4 g5 f3 g4 Be3 g3 Kd2 Nc6 Bf2 Ne5 h3 Ng4 hxg4 gxf2 g5 Ra7 Rh3 Ra5 Rh1 Ra8 Kd3 Ke7 Ke4 Kd6 Kf5 Kd5 a4 Kc4 e4+ d3 f4 h5 g6 d5+ Ke5 h4 a5 h3 g7 d4 b5 h2 b6 Ne7 Kf6 Ra6 g8B Ng6+ Kg7 Qg5 e5 Rh3 b7 Nh4+ Kh7 Re6 b8R Rg3 Na3+ Kc3 Nh3 b1R Rb4 Kb2 Qg4 d2 Be2 f1Q Bd1 d3 Rd4 Qe2 Re1 h1Q Nc4+ Kc3 a6 b2 Ra5 Qg1 Rc5 Ra1 Rb5 b1Q Nb2 Qge3 Ra5 Rf6 e6 Ra4 e7 Re6 e8B Bb7 Rf5 Bf3 Bd7 c6 Bc8 Qe5 Bb7 Q2e3 Ba8 Rb4 Rd7 Re4 Ra7 Qgf6 Qg7 Bh5 Ng5 Qe7 Qf8 Qb4 Qe8 Qc2 Qf8 Kb3 Qc8 Ka2 Qb8 Ka1 Rh1 Re7 Ne6 Qcc5 Nf8 Re6 Rh3 Rf3 Rg3 Qe7 Rg6 Qg5 Rh6 Rg3 Rg6 Re8 Rd6 Re7 Rd4 Re6 Bg4 d1Q Bh3 d2 Nd7 Qdf3 Rf6 d1R Kh8 Qbd6 Bh7 Qa5 Qg8 Qae5 Nf8 Qb4 B7f5 Qff2 Bfg4 Qc1 Kh7 Rdd3 Bd1 Qce3 Rf5 Qfe2
3n1N2/3p2NQ/1P2qrrr/2r2P2/n3BRR1/1p4n1/nkqK2P1/3BBNq1 w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 g5 e5 gxh4 a5 Bh6 e6 fxe6 Bd3 e5 Bf1 e4 b3 b4 Be3 Bb7 Nf3 Bc6 Ng1 Bf4 Nh3 Ba4 Bd2 Bc7 Bc1 Bb6 axb6 a5 Ng1 Bc6 Bg5 a4 Bf4 a3 Bc1 Ba4 bxa4 Qc7 Bb5 Qc8 Bf1 Qd8 f4 Kf7 c4 Ke6 c5 Kd5 c6 h5 c7 e5 c8N e3 a5 a2 a6 h3 f5 d3 a7 Kc4 Be2 e4 Bf3 b3 Be2 h2 Na3+ Kc3 Bg4 d2+ Ke2 h4 Qf1 d1N Ke1 e2 Rb1 a1R Bh3 Nc6 Nc2 Nge7 Qf4 Rf8 Nb4 Nd5 Qd6 Qc7 Ba3 Nd8 Nd3 Nb2 Nc5 Nb4 Nf3 Na4 Bg4 h3 Ne7 Na2 Qh6 Rf6 Ne6 Qc4 Rf1 h1N Ng7 h2 Rd1 Ng3 Bb4+ Kb2 Kd2 h1R Nh2 Rc1 Rf4 Qe6 Qh3 Rc5 Nf1 Qc4 Qh8 Rhh6 Qh7 Rb8 a8B Qc2+ Ke3 Rbc8 Ng6 R8c6 Rd4 e1Q+ Be2 Rce6 Nf8 Rfg6 Bd5 Ref6 Bb7 Qa1 Be1 Qad1 Rc4 Qd5 Bd1 Qe6 Kd4 e3 Be4 e2 Ke3 Qc1+ Bd2 e1Q+ Kd3 Qf2 Be1 Qg1 Rg4 Qb1+ Kd2 Ra5 Ba8 Rc5 Rcf4 Qbe4 Bd5 Qc4 Be4 Qc2+
nQr3Rn/4NN2/3qBP2/K1b1Ppp1/1r2R2b/1b5P/2rBp1k1/N2B3q w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f6 axb5 f5 b4 e6 f4 Ke7 Qe2 Kf7 e5 Ke7 Qe4 Ke8 Ra3 fxe4 f5 Ne7 f6 Ng8 Rf3 Qa5 Rf2 Qd8 Rf5 exf5 Kd2 Kf7 c4 Ke6 c5 Kd5 c6 a5 h3 g5 b6 a4 h6 e3+ Kc2 Ke4 b5 d5 h7 d3+ Kc3 d2 b7 d1Q c7 d4+ Kc4 e2 b6 d3 Kb5 a3 Rh2 a2 Na3 a1B Nc2 d2 Nf3 Bc3 Bg2 Ra4 Na1 Na6 b8R Qh1 b7 d1R Bd2 Be6 c8B Bb3 Be6 Qd6 Rd8 Rb1 b8Q Rb4+ Ka5 Ne7 Re8 Rg8 h8N Nc7 Nf7 Ng6 Rd8 Rf1 Nh4+ Rf3 Re8 Nh8 Ng6 Na8 Ne7 Bd4 Rc8 Bf2 Re8 Bh4 Rc8 Qe1 Bh1 Qb1 Rg2 Rc3 Re8 Kf3 Rg4+ Kf2 Bc6 Rc2 Re4 Qh1 Bb5 Kg2 Bd3 Rc8 Bc2 Rcc4 Bd1 Rc2 Nc8 Qd7 Rd8 Bc5 Ne7 Qd4 Rd7 Rc8 Rd8 Qd3 Rg8 Qd6
R2bn2K/1N2n3/2Q1P1p1/B1p1PB2/1Rqpqb1r/4q3/1P1Nrn1k/1R3B2 w - - 0 1 legal: proof: c4 c5 a4 e5 f4 h5 g4 hxg4 d4 Nc6 d5 Nb4 Kd2 Nc2 fxe5 b5 Na3 Bb7 Nb1 Bc6 dxc6 bxa4 Kd3 Na3 Ke3 Nxc4+ Kd3 Na3 Kd2 Nc2 Kc3 Ke7 e4 Ke6 h4 f5 h5 a5 h6 d5 h7 g6 c7 f4 Bd3 d4+ Kc4 f3 Ra2 f2 Qf3 f1Q Qd1 a3 Nc3 a4 Rh4 g3 Rh6 g2 Qe1 Ne3+ Kb5 Nc4 Kc6 Nd6 Bc2 Be7 Qd1 Qc4 Qf3 Ne8 Rh1 Qc8 Bb1 Bd8 Nb5 Ra7 Nd6 Qa8+ Nb7 Ne7+ Kb6 Nf6 Ra1 a2 Bd3 a3 Bf1 Ne8 Rb1 a1Q Rh3 a2 Bd2 Ra3 Ba5 Re3 Rg3 Re2 Rh3 Rf8 h8R Rf4 Rg3 Rh4 Qf6+ Kd7 Nf3 g1B Nd2 Bh2 Rb3 Bg3 Qf3 Ke6 Rb4 Bf4 Qh1 Qc3 Kb5 Qa3 Kc4 Qe3 Rc1 Qb1 Rg8 a1N c8B+ Kf7 Rh8 Nb3 Bf5 Qa2 e6+ Kf6 Rb1 Kg5 e5 Qa4 Qc6 Nc1 Rg8 Nd3 Rf8 Nc8 Kd5 Nf2 Rg8 Ng7 Rh8 Ne7+ Kd6 Qc2 Rg8 Qce4 Re8 Qa6 Rf8 Qc4 Rg8 Bb6 Ra8 Bd8 Kd7 Nh5 Ke8 Nf6+ Kf8 Ne8 Ra1 Rh1 Rd1 Kh4 Rb1 Kg3 Kf7 Kh2 Kf8 Nd6 Kg7 Ne8+ Kh8 Rg1 Re1 Rg4 Rb1 Rh4#
2Rb3r/1k2p2q/1B1P1R2/1B3r1P/p4pnq/PR3b2/1Q1NN1n1/Kq4nB w - - 0 1 legal: proof: c4 b5 d4 c6 d5 Bb7 d6 Qc7 e3 Qc8 b3 b4 c5 Ba6 Bc4 Qd8 Bd5 Bc4 bxc4 cxd5 f4 h5 e4 g5 e5 g4 e6 dxe6 Nd2 b3 Qf3 b2 Qb3 b1Q Qd1 Qf5 g3 Qg5 fxg5 h4 Qe2 hxg3 Qf3 Bh6 Qd1 Bf8 h4 Kd7 a3 Kc8 g6 a5 h5 f5 c6 e5 c5 e4 g7 f4 c7 e3 Nb3 e2 Kd2 e1Q+ Kc2 g2 Kb1 g3 Nh3 g1N Qd3 g2 Qe3 d4 Qe5 d3 Qe2 a4 Nd2 Nh6 g8B Nf5 Ka2 Nc6 Bc4 Nh4 Bb5 Bg7 Rb1 Bd4 Rb3 Kb7 c8R Qg8 Rf8 Qg7 Rf6 Ra5 Qe5 Be3 Ka1 Qh7 Qb2 Ne5 Rh2 Ng4 c6+ Ka8 c7 Bb6 c8B Bd8 Bb7+ Kb8 Nb1 d2 Bf3 d1B Be3 Be2 Bb6 Qg3 Be4 Bf3 Nd2 Qf2 Bbc6 Rg5 Bb5 Rf5 Rh1 Ne2 Re1 g1Q Rc1 Ng2 Bd5 Qh1 Ng1 Qfh4 Rc2 Nc1 Rc6 Kb7 Ne2 Qd1 Be4 Qc2 Nd4 Ne2 Rc8+ Qc6 Bd5 Ng1 Ne2 N2e3 Qe5 Be4 Bg8 Qc2 Qb2 Bc6 Bd5 Qd3 Bh1 Bf3 Ka2 Ng2 Ka1 Qb1+
rB2RN2/2pK1pQp/1kb1B3/5Pn1/bP1N3N/1P1nq2b/2r1R2R/1q5n w - - 0 1 legal: proof: d4 e5 c4 exd4 h4 b5 cxb5 g5 a3 Bb4+ axb4 gxh4 Kd2 d5 Kd3 Kd7 f4 a5 e4 h3 g4 a4 e5 a3 e6+ Kd6 e7 h2 e8R a2 g5 Kd7 g6 Ra7 g7 Kd6 b6 Kc6 b7 Nd7 b8N+ Kb6 Qa4 Qg5 Na3 Ngf6 g8Q Ne4 Qg7 Qg3+ Be3 Ng5 Rd1 a1Q Nf3 Qb1+ Nc2 Bb7 f5 Nc5+ Kd2 d3 Kc3 d4+ Kc4 d2 Nh4 d3 Re1 d1B Nd4 d2 Re2 Bg2 Nd7+ Kb7 Kb5 Nd3 Bg1 Qe3 Nf8 Bb3 Bf2 d1B Bg1 Bbd5 Qc2 Ra2 Qc6+ Ka7 b3 Rc2 Bf2 Be6 Bg1 Bd7 Bf2 Bh3 Bg2 Rg8 Bd5 Bg2 Be6 Bh3 Rhe1 h1N Rd2 Bf3 Ree2 Bd5 Bg1 Bc8 Rh2 Bdg2 Re2 Bb7 Qf3 Bd5 Qe4 Bc4+ Kc6 Ka6 Kd7 Bb5+ Nc6 Ba4 Qf3 Qf4 Ba7 Qe3 Bb8 Kb6 Nfg6 Rc4 Rc8 Qbg1 Ba7+ Ka6 Qd5 Re8 Nf8 Rc2 Qc5 Qb1 Ra8 Rb8 Qd5 Rb6 Re8 Rb8 Qc5 Ra8 Bb8 Kb7 Qc4 Kb6 Qcc3 Kb5 Nd4+ Kb6+ Qc6+ Bgxc6+
2k5/K4BR1/Nqb1n3/2B3PP/1qpbp1Nq/1rN3Bp/1n1nP3/Q2R3b w - - 0 1 legal: proof: c4 a5 f4 d5 a4 dxc4 Nc3 b5 axb5 e5 Ne4 Ra6 Nc3 e4 Nb1 Re6 h4 g5 Qb3 g4 Qh3 Re5 fxe5 Bf5 Qa3 Be6 Qh3 Bc8 b4 h6 Ra3 h5 Rf3 Na6 Rf4 gxh3 g4 Nb8 g5 Bd7 Rg4 hxg4 Nf3 Bf5 Ng1 Bc8 Kf2 Kd7 Ke3 c5 d4 f5 h5 a4 d5 f4+ Kd2 g3 Kc3 f3 d6 f2 b6 g2 b7 a3 b5 a2 b6 a1N Be3 Nh6 Nf3 g1Q Bg2 f1B Nh2 Nc6 b8B Nf7 b7 Qf2 Ng4 Qb6 Bf3 Bg2 Rd1 Nb3 e6+ Kd8 d7 Nd6 Bd4 Qh4 Bg1 Ncd4 Bc7+ Ke7 d8R Bh1 b8N Bb7 Na6 Bg7 Rg8 Nd2 Be3 Bf6 Rg7+ Ke8 e7 Kd7 Bg1 Ne6+ Bd4 Rd8 e8Q+ Kc8 Qa4 Bc6 Qa1 Rd7 Bb8 Rb7 Bc7 Ne8 Bg3 Nd6 Nh2 Be5 Bg4 Bf6 Bf5 Rb8 Ng4 Qb4+ Kc2 c3 Bg6 N6c4 Bf7 Nb2 Be3 c4 Bc5 Nf3 Kc1 c2 Nc3 Nfd4 Kd2 Nf3+ Ke3 Nd2 Bh2 c1Q Bg3 Nf8 Be7 Qb1 Bc5 Be7 Kd4 Ne6+ Ke5 Bf6+ Kd6 Ba4 Kd5 Rb5 Kc6 Bd4 Be7 Qa5 Bc5 Rb3+ Nb5 Qb4 Kb6 Qa5+ Ka7 Qb4 Nc3 Bc6 Nc7 Qa2+ Na6 Qaa5 Na2 Qab5 Nc3 Qb6+
NB2BR2/7N/Q3P1nP/b2kb3/2pq1rP1/1R4Bn/N1pq2qp/Kb4b1 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 f5 b5 f6 bxa4 h3 g4 Qb3 exf6 Qc2 f5 Qd1 f4 Ra2 h5 Ra1 a5 g3 h4 hxg4 h3 Nf3 Rh4 gxh4 Ra6 Ng1 Rh6 Bg2 Rh5 Bf1 Rh8 d4 Kd7 Bg2 f5 Kd2 Ke6 Kc3 c5 e4 f3 b4 a3 b5 a2 Kb2 h2 b6 a4 h5 f4 e5 f2 h6 f1Q b7 f3 Bf4 a3+ Kc1 f2 Bd2 Qe1 Be4 f1Q Bb4 Nd7 b8B Ne7 Bc3 Qg2 Bc6 Nf6 Nh3 Nfd5 Be8 Nf4 Rf1 Neg6 Bb2 Be7 Nc3 Rf8 Rb1 a1B Rf2 Qe2 Qa4 a2 Qa6+ Qb6 Ba3 Bd8 Rb3 Bb7 Bb4 Be4 Rf3 Bb1 d5+ Ke7 d6+ Ke6 d7 Bc7 Ne4 Bd4 d8N+ Kd5 Ne6 a1B Nhg5 Nh3 Be1 Bg1 Nh7 Bc3 Rf5 Ba5 Bg3 Qa7 Rf2 Qd3 Kb2 Qd2+ Ka1 Rf6 Rf5 c3 Nf2 c4 Nd3 Bc2 Nc1 Bb1 Na2 Qad4 Rf2 Bd6 Nc7+ Ke4 e6 Be5 Na8 Kd5 Rf4 Rf5 Re4 Rf2 Rf4 Rf1 Rf6 Rf4 Rf8 c2+
1bq4B/2P4P/K3NrnR/1rqq1q2/RPBr4/pp3R2/4bp2/3NkBQ1 w - - 0 1 legal: proof: f4 e5 g4 exf4 d4 h5 gxh5 c5 Bd2 cxd4 Be3 Ba3 Bc1 Bf8 a3 b5 Kd2 b4 Ke1 b3 Bd2 Na6 Be3 Ke7 Bc1 Ke8 Nc3 Qc7 Nb1 Nb4 axb4 Qc3+ Qd2 Qxb2 Qd3 Nh6 Qd1 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 h4 f5 c4 d5 h6 a5 h5 g5 e3 g4 h7 f3 h6 f2 c5 a4 c6 f4 Rh5 d3 Qe1 f3 Nh3 g3 Qc3 g2 Nf4 g1Q Qd2 a3 Rh1 d4 Be2 f1Q Rh2 Ra6 Ne6 Qc2 Bb2 Ne7 Qd1 d2 Bc4 d3 Qc1 Rg8 h8R d1Q h7 d2 Rh6 Ng6 Bd4 Bd6 Nc3+ Kf5 e4+ Kg4 e5 Kg3 Rb1 Bb8 c7 Qf5 Ra1 Q1h3 Ra2 Qe3 Ra1 Qdh1 Nd1 Rf8 Bc3 Rb6+ Ka5 Rb7 Ka6 Rf6 Rd8 Kg2 Rd5 Qf2 Ra5 Qc5 Ra4 Bd7 Ra2 Rb5 Rc2 f2 Ba1 Qe1 Rc3 Qee4 Rf3 Qed5 Ne3+ Kh2 Rg3 Rf8 Ng7 Qb1 e6 d1R e7 Bg4 Bf6 Be2 Rf3 Kg1 Be5 Qhd7 Ne6 Qf5 Bh8 Bf1 Qa1 Rd4 Qe1 Rf6 Nd1 Rb7 e8B Qd8 Beb5 Qc8 Bd3 Kg2 Bbc4 Kg1 Bb1 Kg2 Rc3 Bd3 Qg1+ Kf3 Bc2 Ke2 Bb1 Kd2 Bc2 Bf1 Rf3 Ke1 Bb1 Qh3 Bf5 Qh5 Bh3 Qhf5 Qg5 Bd3 Bf1 Be2 Qg1 Rb5#
4bQ2/k3p1B1/N3b1r1/3nP1PB/1n2p1R1/2N2P1K/2NpR2B/1nn1rrn1 w - - 0 1 legal: proof: b4 c5 h4 g5 d4 a5 e4 axb4 e5 cxd4 Qe2 f5 Qe4 g4 f3 Bh6 g3 Bg5 hxg5 fxe4 Bc4 Qb6 Be2 Qf6 Bf1 Qf4 gxf4 Ra6 Nc3 Ra7 Nb1 Ra8 Kf2 Kd8 Kg2 Kc7 c4 Kb6 a4 h5 f5 d5 f6 d3 c5+ Ka7 f7 b5 f8B g3 c6 d4 c7 b3 a5 h4 a6 b4 Bh6 d2 Rh3 d1B Ra4 b2 Nd2 b1N Ba3 b3 Bd6 d3 Ra2 b2 Ne2 Nf6 Nb3 Nd2 Bg7 b1N Na1 Rg8 Nc2 Nc6 Nc3 Be6 c8Q Nb3 Qf8 Nb4 Rh2 Nfd5 Bc5+ Nb6 Rh1 Nc1 Bg1 Rc8 Bh2 N6d5 Rg1 d2 Ra1 Ra8 Bb5 Rb8 Be8 h3+ Kf1 Rb6 Bh5 Rh8 Rg2 Rh6 Re2 Rg6 Nd4 Bb3 Nc2 Ba4 Kg1 Be8 Kh1 Kb8 a7+ Kb7 a8N g2+ Kg1 Ra6 Nc7 Ka7 Kf2 Ra4 Kg3 Ra5 Na6 Rc5 Bg1 h2 Kh4 h1R+ Bh2 B6f7 Kh3 Re1 Ra5 Bg8 Rb5 Rc8 Rb6 Rc7 Rf6 Be6+ Kg3 Rc5 Rf4 Ra5 Rg4 Rf1 Na2 Ra3 Kh3 Re3 Rf2 Re2 Nc3 Ree1 Re2 g1N+
7B/3pN1K1/P1n2p2/r3p1PR/b1pB1BNn/3PrqQ1/N1nk1b2/2R4b w - - 0 1 legal: proof: e4 g5 f4 a5 fxg5 f6 b4 axb4 c3 bxc3 e5 Nc6 e6 Nb8 g4 h5 g6 c6 g5 Qb6 Bd3 Kd8 Be2 Qb5 Bg4 hxg4 Nh3 Qd3 Ng1 Qh3 Qe2 Qh7 Qd1 Qf7 exf7 Ra7 Kf2 Ra5 Ke1 Ra8 Ke2 Kc7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 h4 Kd3 a4 e5 a5 b5 h5 c2 h6 b4 g7 b3 Kg6 g3 h7 g2 Nc3 b2 Ne4 b1B Nf3 g1Q Ba3 c1N Bb4 c5 Rh3 c4 Rh5 Bc2 Qe1 Qh1 Qg3 Ba4 Nc3 Na2 Rc1 Bc5 f8B Nh6 g8N Bf2 Ne7 Nf5 Nh2+ Qf3 Ng4 Nh4+ Kg7 Nc6 Ba3 Nab4 Na2 Ke2 d3 Nc2 Bb4 Ra7 Bd2 Bb7 Bf4 Ra6 Nd5 Ba8 Bc5 Bb7 Bd4 Ba8 Nge3 Kd2 Ne7 Rb6 a6 Rb5 Ra1 Ra5 Rh1 Rb8 h8B Rb1 Rg1 Re1 Ng4+ Re3 Rc1 Nb8 Ng6 Bd5 Ne7 Nc6 Kf8 Qd1 Kg7 Bh1 Rh7 Qe2 Rh5 Qf3
1B5B/1P1BRqN1/kp2Rqnp/1Np2b2/6P1/bPpK2q1/4r2Q/1N2b2r w - - 0 1 illegal: No possible last move
rqbqN1r1/1b6/n1KnRrk1/2bnP3/1B1PR1n1/Q3R1qB/4N2P/B6n w - - 0 1 illegal: No possible last move
4B3/Qb2B3/1R2nPR1/bbBq1nq1/6kr/1Nr2NP1/b1brq1nP/K6R w - - 0 1 illegal: No proof kernel
1RBb1NQ1/1nP1PP1N/BRbn4/3rq1B1/1b4N1/1knb1qq1/8/r4brK w - - 0 1 illegal: No proof kernel
7K/4q3/n1N1r1nQ/3rPrr1/1bPR4/1bB1Rb2/1R1PBBr1/knN2b1b w - - 0 1 illegal: No proof kernel
r1nK1R1b/B4qN1/2Pkr3/5r2/BP2rnN1/nN1PQ2b/b3nrR1/2R1n3 w - - 0 1 illegal: No proof kernel
R2q3N/1N1bPb2/KPr2kn1/1r3r1n/3br1P1/nr3BN1/2Q1BR1B/5n1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 f5 Kc4 a5 e4 h5 b4 d5+ Kc5 a4 c4 h3 g4 h4 b6 f3 Kb5 f2 b7 f4 c5 a3 c6 d3 e5 d2 e6 f3 c7 h2 Qb3 d1R Bg5+ Nf6 Qe3 h3 Qe5 d4 Qf4 d3 Qe4 a2 Bd2 Nbd7 b8N Rc1 Qb7 Bg7 Na6 Nf8 Na3 Bd7+ Qc6 Rh5+ Nc5 Rb8+ Ka5 Ng6 Bg2 f1N b5 f2 Bf4 d2 Ka6 d1B c8B Bb3 Nb7 Rcc5 Qe4 Rc6+ b6 Rb5 Nc4 Nh5 Bd6+ Kf6 Ne2 Bh8 Rg1 h1R Qc2 h2 Ne5 Bd5 Ng3 Rb3 Rd1 a1N Bf3 Rb5 Rg2 Rg1 Qc3 Nc2 Ra1 Na3 Qc2 h1N Nf7 Bg7 Nh8 Bc4 Nf5 Ba2 Rh2 Rg3 e7 Bf7 Be2 Rgb3 Ng3 Rc4 Bf4 Re4 Bd6 Ne3 Bf3 f1R Rf2 Rc1 Bc7 Nf1 Bf4 Bc6 Be6 Bd7 Bc4 Rc8 Bce2 Rcc5 Nf5 Rc6 Bh2 Rd1 Ng3 Rdd5 Rd1 Rf5 Rd4 Rce6 Rc4 Rd6 Rc8 Rc6 Rb8 Ke6 Rc8 Bd4 Ra8 Kf6
1r1n3b/R1Qb4/4r2R/1r2PN2/NB2Knqq/NrP4k/b1BP3r/4R1rn w - - 0 1 illegal: No proof kernel
q1qQ2bN/q2nrB2/RP1R1b2/1N1rbk1n/1KrP3P/R1B5/3q2q1/3B3q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Ke6 h4 a5 b6 g5 b5 c5 b7 f5 d3 g3 Kd2 g4 Kc3 f3 e5 f4 Rh2 f2 Bg2 f1Q Bh1 g2 Bb2 g3 Qh5 f3 Qh7 f2 Qe4 a4 Nf3 g1B Bc1 a3 Bg5 a2 Qg6+ Nf6 Rh3 g2 Qe8+ Be7 Bc1 Bh2 Bh6 g1Q Ne1 Ra7 Qg6 Qfg2 Bc1 f1Q Qe8 Nh5 Na3 Nd7 b8R Kf5 Rb6 Bf6 Bb2 Rh7 Rc6 Ra5 Nf3 Re7 Ng5 Bb7 Nf7 Qc8 Ra6 Bd5 Rd1 a1Q Nh8 Bg8 Qd8 Qff3 b6 Qfa8 Nb5 Bg3 d4 Qa7 e6 Bge5 Rhd3 Qga8 Bb7 Qg2 Bf3 Qa2 R1d2 Qb1 Re2 Qbh1 Kc2 c3 Kb3 c2 Bc3 c4+ Kb4 c1Q Rc2 Bf4 Bd1 B4e5 Rg3 Qe3 Ra2 Qed2 Ra3 Qhh3 Rg6 Qhh1 Nc7 Rd5 Nb5 Rh7 e7 Rg7 e8B Rf7 Ka4 Re7 Ba5 c3 Bf7 c2 Bc3 c1R Kb4 Bg5 Re6 Bgf6 Rd6 Qe3 Ba1 Rc7 Bb2 Qed2+ Bc3 Rc4+
n2N1Q1n/b1b2n1P/2r2RP1/4P1b1/1Nk5/1q2q3/nBBbK1b1/n1B1RrN1 w - - 0 1 illegal: No proof kernel
1N6/kbP1N3/Nnn2B2/q2P3P/Bn2qr2/1K1B1rr1/rR1R3n/br1Q2n1 w - - 0 1 illegal: No proof kernel
R1Rb1KrN/3r1P1B/5PR1/n3Br2/1N4rb/1P2q2B/qr1k1n1n/bQ3b2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Ke2 Kf7 Kf3 Kf6 Kf4 a5 g4 d5 c4 h5 b3 e5+ Kf3 d3 c5 a3 c6 a2 c7 e4+ Kf4 h3 f3 d2 Qe1 d1N Be2 e3 Ba3 h4 Ba6 a4 Bb4 h2 Qf1 d4 Be1 d3 Ke4 Kg5 Ke5 h3 f6 d2 f7 e2 Na3 Rh5 Nb1 a3 Qf2 Qe7+ Kd5 Kf4+ g5 Nh6 Nc3 Ra7 Ne4 Nc6 Nf6 Qe3 Bc4 Na5 Qf1 Be7 Ba6 Bd8 Kd6 Nf2 g6 d1R+ Bd3 Rd2 g7 Rf5 g8B Ba6 c8R Rb2 Bh7 Nhg4 Bc3 e1B Bb5 Rb7 Bd7 Rb4 Qd3 Bb5 Qb1 Bf1 Be6 Rc4 Kd7 Rd4+ Ke8 Rd7 Kf8 Qd4 Bg6 Ke3 f4 Qa7 Be5 Kd2 Ne2 Qe3 Rg1 h1R Bh5 Nh2 Rg6 Rg1 Nd5 Rg4 Nb4 Nd1 Nc3 Beh4 Ncd5 Nf2 Ne7 Nf3 Rh6 h2 Ng6 h1R Nh8 Rhg1 Bg6 Nh2 Bh7 Rg7 Rg6 Rg4 Qe4 Rh5 f5 Rhg5 f6 Rf5 Re1 a1Q Qb1 a2 Rec1 Re4 Ra8 Rg4 Qe4 Qb1 Rcc8 a1B Qh1 Qa2 Qe4 Bh3 Qb1 Bg2 Bd5 Bf1 Bg2 Bb6 Bh3 Bc7 Rg5 Bd8 Rg6 Rg8+
1B1Qb1n1/1K1nP1b1/Bn2nq2/4qr2/P5BP/4bRNb/2k1NRnR/1r3q2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 a4 Kc4 h4 g5 c3 f5+ Ke5 b5 e4+ d3 h6 d5 h7 d4 Ba3 g4 Rh3 f3 Qc2 f2 Rg3 b3 Bh3 f1Q Bb2 f4 Re3 f3 Bg2 f2 Ba3 b4 Bh3 b2 Qd2 Kb3 c4 g3 c5 g2 c6 Qe8+ Kd5 Nd7 c7 Qe5+ Kc6 Bg7 Qc1 Rb8 Nc3 b1N Re2 d2 Nd5 d1N Nf3 g1B Bg4 d3 Nb6 d2 Qc5 Ne3 Qd6 d1N Nh2 Nbc3 Raa2 Nc2 Nd5 Nde3 Nf4 Ncd5 Rd2 Qfa1 Nf1 Ng2 Ne2 N5b6 Nfg3 f1Q Bc1 Qef6 e5 Be3 e6 Qae5 e7 Rb7 Ng1 Kc3 Rf2 b3 Ba3 b2 N1e2+ Kb3 Bc5 b1B Bd4 Nc4 Ba7 Rb5 Rf3 Ncb6 Bb8 Rb4 Rf2 Rf4 Rf3 Rf5 Rf2 Ba6 c8B Bb5+ Kc7 Nd4 Ba6 Ne6+ Kb7 B1d3 Qc7 Bc2 Qd8 Bcd3 Ra3+ Kc2 Rf3 Ndf8 Rb3 Be8 Rb1 Nfd7 Re1 Qf2 Rh1 Qf1 Rh3 Rh5 Rh1 Bf5 Rh2 Rg5 Bh5 Bh3 Bg4 Rf5 Rf2 Nh6 Rf3 Rf8 h8R Ng8 Rh6 Rf4 Rh5 Rb4 Rhf5 Rb1 Rf2 Qh6 R5f4 Rf5 R4f3 Qhf6
3r2r1/k1rPb2r/B2RR2b/b2N2RK/N3n1B1/qQ2qb2/1n1P1P1B/b1q5 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 a4 c5 h4 Kc7 a5 e5 a6 Kb6 d6 g5 h5 e3 a7 b3 h6 c4 d7 c3 h7 g3 Kf3 e2 Kg4 e1Q Rh2 g2 Ra2 c2 Nf3 g1B Nd4 b2 Rh3 e4 Re3 Be7 Rh3 e3 Rh2 e2 Ra4 Nf6+ Kf3 g4+ Kg3 Na6 Kh4 g3 Nf5 g2 Nd4 Ne4+ Kh5 Qf8 Rc4 Rg8 h8R Nac5 Rh4 Na4 Nc3 b1R Nb3 Nb2 Rh1 Bh2 Rg1 Bf4 Nc5 Bh6 Rh1 g1B Rd4 Bh2 Ne6 Bc7 Nc5 Rb8 a8B Ka7 Na2 b5 Rh7 b4 Bg2 b3 Rh4 Bb7 Bf1 Ba5 Nc3 Rd8 Nd5 Ra1 Rh3 Ra4 Re3 Rc4 Na4 Rc7 Bh3 Qg1 Rg3 e1Q Rg5 Qe3 Bg4 Qff3 Rf7 Qfg3 Rf8 Qd6 Qf3 Qa3 Re8 Nd3 Qh1 b2 Nf6 b1R Kh4 Ng3 Nb6 Bc5 Qd5 Bhf8 Qb3 Bf3 Re6 Bce7 Rdd6 Ne4 Bb2 c1B Be5 Bb2 Bb7 Ba1 Nfd5 Nb2 Na4 Qd1 Ba6 Qc2 Rg6 Rg1 Rge6 Qc1 Kh5 Bg7 Kg6 Rh1 Bf4 Rhh8 Bh2 Bh6+ Kh5 Rh7
qBq2rN1/2Pn1Bb1/1bRQr1q1/7r/n1N3r1/2q1R1B1/1N1r1P1P/k2K3b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 c4 Kf7 b4 Kf6 b6 Ke5 b7 d5 b5 g5 b6 a5 c5 g3 c6 g4 c7 e3 Bb2 g2 Qa4 g3 Qb5 a4 Qa5 e2 Bc3 a3 Qa6 a2 Ba5 d3 Bc3+ d4 Nd2 Rh5 Nb1 Bg7 Qc4 Na6 b8B Nf6 b7 Nd7 Qb5+ Nac5 Kd2 e1B+ Kc1 d2+ Kc2 d1Q+ Kb2 Qd3 Ne2 g1Q Kc1 g2 Bd2 Qc3+ Kd1 d3 Bg5 d2 Qb3 Na4 Ng3 Kd4 Ne4 e5 Nc5 e4 Bh4 e3 Ke2 d1R Qa3 Rd3 Bg3 Rd2+ Kf3 e2+ Nd3 Kc4 Qd6 Kb3 Na3 Qg8 Rc1 a1Q Nc4 Ka2 Ba7 Qd8 b8N Bb7+ Nc6 Qc8 Rc2+ Kb1 Bb8 Qaa3 Ke3 Ka1 Ne7 Qh8 Ba7 Rf8 Ng8 Bf3 Bb8 Qa2 Na5 Qd5 Nc4 Qa8 Rb2 Bb7 Rb6 Be4 Ne7 Qg8 Rc6 Qe6 Ng8 Qe8 Nb2 Qc8 Nc4 Ne5 Nb2 Qb3 Bh4 Rc2 Rc3 Nd7 Rc6 Qc4 Ne5 Ba5 Qd5 Rd2 Qd6 e1R+ Be2 Rb1 Bd3 Qcc1 Nec4 Bf3 Bg6 Bb6+ Rc5 Qc2 Bf7 Qgc1 Rf1 g1R Re1 Rg4 Bg3 Qg6 Re2 Bh1 Re1 Rd3+ Ke2 Qc3 Rc6 Rdd4 Rd1 Rdd5 Rd3 Rde5+ Re3 Rd1 Qe6 Rdd4 Qd6 Rd2+ Ke1 Re2+ Kd1 Re6 Rc5 Rc2 Rc6 Rd2+
R1r4b/2P2r2/K1R1Nq2/1B2kP1B/4q2N/nrNn3P/3b3b/1nrbB1Qr w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 d5+ Kb5 g5 f4 e5 c4 g3 a4 g4 h3 d3 a5 d4 c5 g2 c6 d2 c7 d3 a6 g3 a7 e4 Be2 b3 Ba3 b2 Qa4 d1Q Bf1 e3 Nc3 b1R+ Qb4 e2 Kb6 e1B Nce2 d2 Nf3 g1R Nc1 g2 Ba6 Qa4 Nb3 d1R Nfd2 Nc6 Nf3 Na5 Ra2 Bd2 Nc5 Rh7 Ra1 Ne7 Qb5 Qe4 Bc1 Rb3 Ne1 Nec6 Nf3 Bg7 Nh4 Nb4 Na4 Nd3 Nc3 Bh8 Ba3 Rg7 Bb4 Rc1 Qc5 Rf7 Bb5 Qde7 Rh2 Rh1 Qg1 Rb8 a8B Nc4+ Ka7 Na3 Ba5 b6 Bb4 Be6 Ka6 Rc8 Bac6 Bd5 Be8 Bc6 Bc4 Ba4 Bcb5 Rf8 Bh5 Rf7 Bc5 Qd6 Bf2 Qd8 Be1 Qdd4 Qe3 g1B Re2 Bh2 Qg1 Qde5 Rg2 Qd6 Rg8 Qdd4 Rd8 Qde5 Rd6+ Qe6 Rc6 Qd6 Bc4 b5 Ra2 b4 Bb5 Rb2 Ra1 Bd1 Ra2 b3 Ra1 Ke7 f6+ Ke6 f5+ Ke5 Ra2 Rbb1 Ra1 b2 Ra2 Rg7 f7 Qf6 f8N Rf7 Ne6 Rc2 Bg6 Rbc1 Bh5 b1N Ka7 Rb2 Kb7 Nc2 Ra8 Nca3 Ka6 Rb3
1R1B1Q1n/1n1kbB2/1q1P3r/2nK2bN/1N4r1/1n6/1rPPN1bq/2qRq1R1 w - - 0 1 illegal: No proof kernel
qBq1n2R/b1NR3P/7n/r1bnrP2/b1Nr4/1B3krP/2b1q1N1/2RQK3 w - - 0 1 illegal: No possible last move, all moves rejected
k1bq4/Nb3PK1/3N3n/b1rBq1r1/qP3Q2/q1Rnr1bR/P4Rn1/4N1B1 w - - 0 1 illegal: No possible last move
2nnr2R/B1PNq3/Q2r3b/6bq/1P2Br1k/Bq2Nn1q/1R2N1P1/nb4K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 e4 Kf6 c4 Kg5 b4 f5 e5 h5 b6 a5 c5 d5 e6 a4 e7 d3 e8N h3 b7 a3 c6 h2 c7 d4 Nc3 h4 Ng7 h3 Rb1 a2 Qf3 a1B Be3 d2 Bb5 d1R Qd5 d3 Ne8 d2 Ba4 Kh4 Nce2 f3 Bb3 f4 Bc5 Bf5 Ng3 Ne7 Nf6 Nbc6 b8B Bh6 Ngh5 Nc8 Nd7 Re8 Qd3 Qe7 Bb6 Nd8 Qd5 Bf6 Ne5 Bfg5 Rb2 Bb1 Ne2 Ra3 Rf1 h1Q Qc5 h2 Bc2 Rc3 Ng4 Rc4 Re1 Rd4 Ng1 Rc4 Kf1 f2 Qe5 Rd4 Ke2 f1N Kf2 f3 Qe2 Rf4 Be4 Ne3 Bd4 Nc2 Nhf6 Na1 Kf1 f2 Qa6 Nb7 Nd7 Nd8 Ke2 f1N Bba7 Rc1 Ne3 Rc6 Rc1 Rd6 Bh8 Rf7 Bf6 d1Q+ Kf2 Qb3 Ne2 Nd2 Rc5 Rff8 Rb5 Rf7 Rb8 Nf3 Bc3 Qhd1 Bd2 h1Q Bc1 Qh3 Ra8 Ne1+ Kg1 Rf5 Rd2 Rf4 Ba3 Qbf7 Rb2 Qh5 Rb8 Qb3 Rb6 Rd2 Rg6 Rd1 Rg8 Rd6 Rh8 Nf3+
1R1N4/rP1BPbB1/1NP3q1/1b4rk/nN2B1b1/1q1q1nr1/1Q1bRr2/2K1n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 Kg6 c4 a5 b6 h5 g5 d3 c5 h3 b5 h4 c6 f3 b7 f2 e5 a4 b6 d4 e6 f4 e7 h2 Qc2 a3 Qc3 f3 Qb4 h3 Qa5 a2 Qa3 Nd7 b8N Ngf6 b7 Nb6 Qb2 Bg4 Qc2 Ra7 Qb2 Nh7 Be2 f1R Nd7 f2 Qb5 Bg7 Qc5 Kh5 g6+ Ng5 Nc3 Qe8 Qb5 Rg8 Qa6 Na4 Rb1 a1N Nb6 Nc2 Qa5 Ne1 Qb4 Ngf3+ Kd1 d2 Bd3 Bf6 g7 Qg6 Be4 Be5 Ke2 d3+ Ke3 d1R Qb2 d2 Ncd5 Bc3 Ne2 Rg1 Nb4 f1B Nd4 Rg3 Rg1 h1Q Ne6 h2 Nd8 Bb5 Ra1 Qg2 Ra2 h1B Rf1 Rf8 g8B Qh3 Be6 Rf5 Bd7 Rg5 Rf2 Qf1 Ra1 Qc4 Re2 Qb3 Qb1 Bg2 Bb2 Rc1 Ra3 d1Q Ba1 Rc2 Qb2 Nc5 Ra6 Na4 Ra5 Bd3 Rf5 Bb5 Rf8 Qdd5 Nf7 B2h3 Rb8 Be6 Nd8 Bhg4 Rg2 Bf7 Rd2 Nd3 Ke2 Qdf5 Kd1 Nde1 Re2 Rd2+ Kc1 Qfd5 Re3 Rf2 Re2 Qd3 Qa2 Bh8 Be5 Bf6 Qb2 Bg7 Bc7 Bd4 Be5 Bc3 Bg7 Bd2+
r3N3/1r2K1nP/RQN2nbq/3N1B2/1nrnPP1k/2rRR2b/1Br2b2/4r3 w - - 0 1 illegal: No proof kernel
Q2b3q/BB4R1/2n3NR/2q1bB1b/1kP3bb/2qb1r2/3P1P1q/1Nr1n1KN w - - 0 1 illegal: No proof kernel
b2Q1qb1/B3r3/qRR1rBkr/Kn3r1N/P3N3/4Pb1r/3NPn1r/2bB4 w - - 0 1 legal: proof: d4 a5 b4 axb4 Qd3 c5 Qd1 cxd4 g4 e5 g5 e4 g6 e3 fxe3 hxg6 Kd2 g5 Ke1 g4 Kd2 g5 a4 f5 c4 Kf7 h4 d5 h5 b5 h6 f4 c5 b3 c6 d3 Kc3 d4+ Kb2 d2 c7 f3 h7 f2 Nh3 d3 Kc3 b4+ Kc4 g3 Kb5 b2 Ra3 g2 Qe1 d1R Nf4 g1R Rh2 d2 Ra1 b3 Kb6 g4 Ng6 g3 Nf4 g2 Rh5 Ba3 Ng6 Bb7 Rh1 Na6 Rh4 Nf6 Nc3 b1R Rb4 b2 Ka5 Ng4 Re4 Ra7 Nf4 Rh1 Nb5 g1Q Nd5 Qf8 c8N Kg6 Nd4 Ba8 Nf3 Rh2 Rb4 Re7 Bh3 f1R Nd6 Nc7 Rb6 Nf2 Nf6 Nb5 Be6 Qg5 Bb3 Qgh6 Ra2 Ra1 Rc6 b1B Rb2 Be4 Nh5 Rh3 Rb1 Rfh1 Bc2 R1h2 Bb2 Rc1 Qf1 d1B Nd2 Re6 Bb3 Bf3 N6e4 Rc2 Bd4 Bc1 Ba7 Rc4 Rb6 Rc7 Rc6 Re7 Qh1 Bc2 Qd1 Bd3 Bc2 Bc4 Rb2 Nd4 Rbb6 Nb5 Qh1 Rb1 Bd1 Rb3 Qf1 Rd3 Qh1 Rd5 Qg1+ Rg5 Qg3 Bd5 Qc7 Rf5 Qd6 Qc8 Qd7 Qhf8 Qd8 Qa6+ Kb4 Rg8 h8B Ba2 Bf6 Rh8 Rd6 Rh6 Rdc6 Rd6 Bb2 Bg8 Bf6 Qb7 Ka5 Rde6 Rd6 Qc8 Rdc6 Qa6+
2brb3/1k4nr/1B3Pb1/4rqRP/b5bN/4B1PQ/q2bn1r1/1BRR1K1N w - - 0 1 illegal: No proof kernel
1nnQ4/k2BPqRb/5n2/1B5P/1q1R2Nb/1bPr1Nnb/1R3rnB/1n1K4 w - - 0 1 illegal: No possible last move
n4nbB/1Pn4R/3b1R1r/k1q2n1P/6N1/nq1B1Nr1/PQ3nRK/q2B3q w - - 0 1 illegal: No proof kernel
3b1K1k/2q1Q3/1RbBRn1b/1qN5/q4PNq/1PP2B2/1bBrR1r1/3n1r1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg7 g4 e5 b6 h5 g5 d5 b7 a5 g6 a4 c3 d3 Ke3 d4+ Kd2 h3 Qe2 h4 Qh2 a3 Nf3 e3+ Kd1 d2 Kc2 d1R Kb3 e2 Kc4 e1B Ng5 d3 Qe2 d2 Rh2 e4 Qe3 a2 Re2 h2 Rf2 h1Q Nf7 h3 Qa7 e3 Rg2 h2 Rg5 e2 Rf5 Na6 b8R Qb7 Qf2 h1Q Qe3 Nf6 Qe8 Nb4 Nh6 Nbd5 Re5 Bh4 Ng4 Bg5 Re6 e1R Be2 Be7 Bf3 Rf1 b3 Qb5+ Kd4 Qc7 Ba3 Ne3 Rbb6 Bb7 Qd7 Kg8 g7 Bc6 Bc5 Kh7 g8B+ Kg7 Bf7 Bd8 Bg6+ Kg8 Bd3 Rh6 Qd6 Kh8 Ke5 Qh2 Bde4 Qg3 Bd3 Rhh1 Bf5 Qh4 Bh7 Qc8 Qc7 Ra4 Kd6 Qa8 Bd3 Re4 Bc2 Qaa4 Na3 Re5 Nc4 Re4 Rc1 a1B Nce5 Bb2 Nd3 Rd4+ Bd5 Rf2 Rb1 Rdg1 Re1 d1Q Re2 Rgf1 Qb7 Rg2 Ba3 Bc7+ Ke7 Bd8+ Kf8 Qd2 Qc7 Nd1 Bf3 Rd6 Qe7 Rd7 Ndf2 Qd6 Nd3 Qc7 Bb4 Rd4 Bd6 Rd5 Nc5 Rd4 Be5 Rd2 Bd6 Bh6+
2q4b/1b3NRR/kqbqb3/Bn4P1/K6P/1Pn1NBnr/n1r4N/1Q2R1q1 w - - 0 1 illegal: No proof kernel
bN4B1/1Q1PrrR1/2bq2q1/K1RN1R1n/5r1q/bnP1b3/1Br1P3/q4k1N w - - 0 1 illegal: No proof kernel
3qkbB1/nP2r3/1B2nRq1/1Nb4R/2bPN2q/1n1K1b2/nq1Q1rPR/2N5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 a5 Kd2 c5 e4 h5 b4 f5 b6 a4 b7 f3 e5 f2 e6 f4 e7 f3 b5 h3 b6 h4 Ba3 h2 Nc3 h3 Qc1 Nc6 b8R Bb7 Ne4 c3+ Kc2 c4 Qd2 Nh6 Qe1 Rh7 Rd1 Na7 Rd3 Nf5 Qb1 Bd5 b7 Ng7 Nc5 Ne6 Bb2 a3 Qd1 a2 Nb3 a1N+ Kc1 c2 Kd2 c1N Qe1 c3+ Ke3 c2 Be2 f1Q Bc3 f2 Qd2 Na2 Ba5 c1B Bc7 Ba3 Nc1 Nb3 Rc3 Bc5 Nf3 Qg1 Kd3 f1B Bb6 Qf2 Rc8 Qg3 Rc6 Qg6+ Ke3 Rf7 Ng5 Rf2 Bc4 Be2 Ne4 Bf3 Kd3 Rc8 Rd6 Rc7 Rc6 Ng5 Rf6 Ne6 Rf1 h1Q Rf5 h2 Rh5 Kf7 e8N Re7 Nc7 Qg1 Nb5 h1Q Rh2 Ke8 Rh5 Na1 Ra3 Qh4 Ra6 Nb3 Rd1 Qgh2 Rh1 Qg1 Rh2 Qf1+ Ne2 Qa1 Nc1 Bc6 Bd5 Qb2 Bc4 Nc7 Bg8 Ne6 Bc7 Bd5 Rc6 Ng7 Rf6 Ne6 Bb6 Bc4+
1B1Qrn2/1b4k1/r3R3/qr1q4/N1Pb1qP1/5RqP/1Rpn2q1/3bNBBK w - - 0 1 illegal: No proof kernel
1r2N3/B2K1b1r/2R1bPB1/B1P5/N2bnrp1/2b2kqR/q2bnP2/Rq3Q2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 h4 e5 c4 b3 a4 b4 c5 g3 h5 d3 a5 d2 a6 g2 h6 e4 a7 e3 h7 b2 Rh2 g4 Rh3 Kg5 Ba6 Kf4 Qa4 d1B Bc4 b3 Qa2 Bg7 Kd6 Qc7+ Kd5 Bc3 Qa4 Nc6 Qa6 Nd4 Nf3 g1B Nh2 Rb8 a8R Ne2 Nf1 Bh2 Rh5 Kf3 Bd2 Bhe5 Rh4 Bed4 Bb5 Qg3 Rh3 d6 Kc6 d5 Be1 Nf6 Bd3 Ne4 Qb5 Be6 R8a6 Bd2 Nc3 b1Q Na4 b2 Bc2 Bf7 Kd7 Qa2 Rc6 b1Q Bd3 Rhf8 h8B Bb3 Be5 Rh8 f6 Rh7 Bc2 Ba5 Bc7 Nc1 Bd1+ e2 Nc3 Nd6 Qb6 Be5 Qb4 d4 Na4 d3 Qc4 d2 Bc2 d1R Ne3 Rd4 Nd5 Rf4 Bg6 Bd4 Bb6 Ne4 Ba7 Bb4 Bd2 e1B Qf1 Ne2 Nc7 Ba5 Bb4 Bd2 Ne8 Bbd5 Ba3 Bac3 Bb4 Bc4 Ba5 Bce6+
nRNNR1B1/n1Nq4/2n1P1rR/3bn1PK/3B2qn/3r2Pp/kb4q1/2b2Q2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 Kc6 e4 Kb5 d4 c5 a3 f5 g3 h5 e5 h4 d5 b3 a4+ Kb4 d6 b5 a5 h3 e6 c3 d7 c2 a6 c4 a7 c3 Rh2 b2 Bg2 Kb3 Ra4 b4 Ra6 Rh6 Ra1 Bg7 Ra5 Na6 Be3 Ne7 Ra4 Rg6 Bc1 Bb7+ Ke2 f3+ Kf2 f4 Bh1 Nc7 Bd2 Bd5 Ra2 Nc6 Na3 b1N Qf1 c1B Qe2 c2 Nb5 Bgb2 Qe5 Na3 Nd6 Nab5 Be3 Qc8 d8N Qd7 Qg7 Rb8 a8R Nba7 Qf8 Rc8 N8b7 Rd8 Rb8 Na8 Ra6 Nc8 Bd4 N8a7 Rb6 Ka2 Ne2 b3 Qf6 Ka1 Nc8 Ka2 Kf1 f2 Be4 Be3 Qf5 c1N Qf7 Nd3 Nc3+ Ka1 Ke2 f1N Kf3 Nd2+ Kg4 f3 Rf2 Nde5+ Kh4 Bf4 Nb5 Ka2 Rf1 f2 Nc7 Ndf3+ Kh5 Nh4 Bc2 Bfc1 Qf6 Rgg8 Bh7 Rg7 Bg8 Rg6 Rd1 f1Q Rb4 Qg2 Qf1 Bc3 Rd3 b2 Rf3 b1Q Rf8 Qf5 Re8 B3b2 Rc4 Qg7 Rb4 Rd6 Nd8 Qf4 Rb3 Qd7 Rf3 Qe4 Rf6 Bb3 Be3 Rd3 Bb6 Bd5 Bd4 Rg7 Rh6 Rg6 Rb6 Qf5 Rb8 Qg4#
BnNr3q/1qNR1K2/n1R1p2k/2bPB1rn/n3P3/nBr3b1/1RP2b2/5Q2 w - - 0 1 illegal: No proof kernel
5kB1/R1n4Q/1P2P1bN/qNR2K1p/n2r3N/2BP2b1/3Bn2n/qbn1r1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 a5 g4 h5 e4 c5 b4 a4 e5 c3 b6 c4 b5 a3 b7 h3 g5 h2 g6 a2 g7 c2 Bd3 c3 Qe2 Nd7 b8B Nb6 Na3 Bd6 Qg2 Na4 Bc4 Qa5 b6 Ne7 g8N Nd5 Qg5 Kf8 Qh4 Nc7 Rb1 a1Q Bb2 c1N Nf6 c2 Ba7 Ne2 Ng4 c1N Bc3 Bd7 Nb5 Be8 Bd5 Rd8 Bb8 Bg6 Nh6 Rh7 Rb3 Re7 Bg8 Rdd7 Ra3 Re6 Kf2 f3 Ke3 f2 Qe4 f1Q Nf3 Qg2 Rf1 h1B Nh4 Qg1+ Rf2 Rd8 Qb7 Bd5 d3 Ba2 Kf3 f4 Qa7 Rf6 e6 Bb1 Rh2 Rf5 Ke4 f3 Rg2 f2 Rg5 f1N Qb7 Nd5 Qh7 Bg3 Bf4 Nh2 Bfd2 Nc7 Ra2 Rf1+ Rf5+ Bf7 Rc5 Re1 Kf5 Rd4 Rb2 Rg4 Rb4 Be8 Rd4 Re4 Rd7 Rd4 Rg7 Na6 Rb7 Nc7 Ra7 Bg6+
KBq1n3/1R2r2p/RP6/bNn2P1R/3BQ1b1/qknNrNrP/2q5/2qq4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 f4 c5 Bd3 cxd4 Be2 g4 Bf3 gxf3 Kf2 Kf7 g4 Ke6 c4 a5 b4 d5 c5 d3 Ke3 d4+ Kf2 Kd5 b6 Kc4 c6 e5 g5 d2 b7 a4 g6 a3 g7 e3+ Kg3 a2 h3 d3 c7 f2 Kf3 f1Q+ Ke4 e2 b5 e1Q+ Qe2 d1Q b6 Qc2 Na3+ Kb3 Qe3 Na6 b8B Ra7 Nf3 Bb4 Nb5 Ba5 Rg1 Qed1 Rg5 Bg4 c8R Re7 Rc7 Qc8 Kd5 e4 f5 Nc5 Kc6 Nf6 g8N Ne8 Nf6 Rg8 Nd5 Rgg7 Qe2 d2 Rh5 e3 Nf4 Rg5 Qe1 e2 Nd3 Re3 Qh4 e1R Bb2 Re7 Bd4 R1e3 Qe1 Qdc1 Qh4 d1N Qe1 Nc3 Qe2 Qd8 Rb7 Qfd1 Qg2 Re1 Qe2 Qa3 Qe4 Re3 Rc1 a1Q Rb1+ Q1b2 Ra1 Qbc1 Ra2 Qab2 Ra4 Bb4 Ra8 Qa3 Ra6 Ba5 Rba7 Nd7 Kb7 Nc5+ Ka8 Qc8 Rb7 Rg6 Nh2 Rg3 Nf3 Rge6 Qc6 Re1 Qe4 Re3
6qr/Q3b1P1/RR1B1p2/nPN3n1/1q2r1Rb/2k2q1q/q3b1NP/Nr1BK3 w - - 0 1 illegal: No possible last move
7b/2BKPq2/b1R1n2b/2Nn1rqr/1QP3kP/1N1BBb1p/5qn1/2b1RR2 w - - 0 1 illegal: No proof kernel
1kN1rq1q/2p3nP/b1b1RbbB/K3bQ2/6Nr/4qn1r/4BPPB/RN6 w - - 0 1 illegal: No proof kernel
bqrnb1Bn/PRR3n1/R1PKP1p1/Q1q5/1N6/r5kr/bb3N2/bB4B1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 Ke7 Kg3 Ke6 Kf4 b5 c4 d5 e4 f5 h4 d3 a4 d2 c5 g6 a5 d4 h5 g3 h6 g2 a6 b3 h7 d3 a7 b2 Ra3 b4 Ra1 b3 Rh4 Qd4 Ra3 Nh6 Ra4 Nc6 Rh3 Bg7 Ra3 Nd8 Ra5 Bd7 Be2 Rc8 Bf3 Be8 Ne2 g1B Qf1 d1B Nd2 b1Q Qe1 b2 Nc3 Nhf7 Na2 Be2 Bg2 Bf3 Nb4 Qd6 Rg3 Bd4 Ra6 Qc2 Rh3 b1B Rh1 Bb2 Rg1 Rg8 h8R Ba2 Rh7 Nh8 Rgh1 Bf6 Rb7 Rg7 Rh2 Rh7 Bf1 Rh3 Rc7 Rg3 Rhh7 Rh3 Rb7 Ba1 Rhc7 Bh1 Bb2 Bg2 Bd4 Bb2 Nb1 d2 Bd3 d1R Nc3 Ra1 Bg1 Bg7 Nd1 Qf2+ Kg5 f4 Bb1 f3 Kf4 Qc2 Qc3 f2 Qd2 f1N Nf2 Ne3 Qc3 Bf1 c6 Nf5 Qa3 Bf6 Qa5 Ng7 Rf7 Qb8 Rfc7 Be7 Rb5 Qc5 Rbb7 Kf7 e6+ Kf6 Nc2 Bf8 e7 Ke6 e5 Kd5 Rab6 Ba6 e6 Kd6 Rb3 Kd5 Nb4+ Kd4 Rb6 Bb7 Ra3 Ba8 Rb7 Bd7 e8B Be7 Qa4 Bf6 Bf7 Be8 Bg8 Be5+ Kg4 Bf6 Qa5 Be5 Ra4 Ke3 Kg5 Kf3 Ra3+ Kg2 Ra4 Bf6+ Kf4 Bc4 Ke4 Raa3 Kf4 Ba1 Ke4 Bfb2 Kf4 Rac3 Ke4 Bd5+ Ke5 Kg3 Ra3 Qd4+ Kd6 Ba2+ Qd5 Qc4 Ra6 Ra3 Qa5 Qc5+
1b3R1n/N2P2p1/n1n1q1nn/B4R2/kr1Nr1b1/2r5/4PPRK/1Bnn1QB1 w - - 0 1 illegal: No proof kernel
1N6/2b4r/BnKR4/2PP1r1p/1RN3N1/Qq1rnbPk/b2n1B2/3qRbq1 w - - 0 1 illegal: No proof kernel
2Qb3b/N1nBN1nR/b5PP/r3r1q1/3R1q2/2K2p1R/1NrrP2n/1kB1q3 w - - 0 1 illegal: No possible last move
3B3k/1Nrb1r2/1Rb1pq2/K1nrBPb1/BQNb3P/q5n1/2P1qn2/3R1R2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 b4 a5 h4 g5 f4 Kg7 f5 d5 b6 e3+ Kd3 a4 b7 a3 b5 g3 b6 g4 Nc3 e6 Nb1 a2 Bd2 e2 Nf3 e1Q Bc3 g2 Ba5 g1R Bh3 g3 Qc1 g2 Ne5 Bd7 Qa3 Na6 b8R Nf6 b7 Be7 Qb4 Ne4 Nf7 Ra7 Qb3 Rh7 Ng5 Kh8 Bd2 Rf7 Be3 Ng3 Ne4 Bg5 Nec3 Qf1+ Kd2 d3 Ne4 d4 Na3 Nc5 Rd1 a1Q Nc4 Qa3 Ned6 Qf3 Qb6 Re1 Qb5 g1B Qb4 Qg4 Bf4 Re5 Bg2 Rd5 Be3 Bf2 Rhf1 Qf8 Rd8 Bg1 b8B Rc7 Nb7 Qh5 Ba7 Bf2 Bb6 Bg1 Ra8 Qd8 Ra6 Qf6 Bf4 Qg4 Nb2 Qf3 Ba5 Qh5 Rb6 Qe2+ Kc1 d2+ Kb1 d3 Be5 Nh5 Nc4 Bd4 Be4 Ng3 Bf3 Rd6 Bc6 Rd5 Ba4 Rf8 Rg1 Rf7 Rdf1 d1N Rh1 Qc3 Ka2 Nf2 Rd1 d2 Rhf1 Nb3 Ka3 Nc5+ Qb3 Qa1+ Kb4 Qb2 Rb5 Qa2 Bb6 Qa3+ Ka5 Qh5 Qb4 Qe2 Ra1 d1B Rc1 Rc6 Bd8 Rc7 Rb6 Qd2 Rc6 Bf3 Rcd1 Qe2 Ra6 Rd6 Rb6 Bfc6 Rd2 Rd5 Rd3 Qg7 Rdd1 Qf6
r3r3/1Nnpr1qn/R1P1R1KB/B2R3B/4n3/1P3Q2/1kPN4/qbqbr1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 dxc5 e6 Nc3 exf5 Nb1 f4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 g5 e3 f5+ Kd4 a3 c6 f3 h5 a4 h6 f4 Ke4 f2 h7 a2 Qd2 g3 Rh2 g2 Rh1 g4 Nc3 a3 Qe2 f3 Rb1 a1R Rh3 a2 Na4 g3 Rh1 Nf6+ Kf4 Kd5 Kg5 Ba6 e4+ Kd4 e5 Bc5 e6 Qf8 e7 Qg7+ Kf5 Bc4 e8R Na6 Nh3 g1R Nb6 g2 Re5 Nc7 Nc8 Re8 Ng5 Bb6 Rh6 Rh1 Nd6 g1Q Bh3 f1B Bf4 f2 Qf3 Bfe2 Bg4 f1N Bh5 Nd2 Nb7 Bc5 Rd1 Rc1 Re3 a1Q Ne4 Ba2 Ra3 Bb1 b3 Qe1 Ra6 Rh3 Qg2 Re3 Qf3 Ba7 Rg6 Qg1 Bh6 Bb6 Ng3 Kc3 Nf1 Qh1 Kg5 Kb2 Kf5 R3e7 h8B Nde4 Rd4 Qf7 Nd2 Nh7+ Rf6 Qd1 Rd5 Bg1 B8g7 Qg8 Bh8 Qg3 Re6+ Qe5+ Kg6 Qc3 Nf1 Qd2 Bd4 Re1 Bb6 Qc1 Ba5 Bd1 Nd2 Qg7+
1Q4R1/1rBb1r2/N2q4/K4Pr1/1P1r1R1N/5Rr1/nnkpbBrP/2n2Bb1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 b4 Kf6 f4 Kf5 c4 e5 b6 a5 c5 g5 c6 d5 b7 a4 c7 e3+ Kd3 a3 Be2 e4+ Kc2 d3+ Kb3 d4 Qf1 d2 Bd1 a2 Be2 d1B+ Kc4 d3 Kb5 g3 Qe1 g2 Bd2 g4 Na3 g3 Nh3 g1R Nb1 g2 Qf2 Ra7 Bf1 e2 Qb6 e1N Na3 e3 Nc2 Ke4 f5 e2 Qc5 Qd6 Qb6 Nd7 b8B Ne7 Rb1 a1R Na3 Rh4 Nc2 Nc5 Rc1 Rb7 Be3 d2 Bf2 Kd3 Bd4 Raa7 Bg7 Na4 Ne3 Rd4 Bh6 Nb2 Ng5 Nd5 Nf3 Bd7+ Rc6 Be7 c8R Bh4 Bf8 Bf2 Nh4 Ra3 Re8 Rb3 Bc7 Nc3+ Ka5 Na2 Nd5 Rc3 Re4 Kc2 Rc5 Ned3 Rf4 e1R Rc4 Ree4 Rf3 Be2 Bh6 Ndc1 Be3 Re8 Qa7 Rf8 Qb8 Rf4 Re4 Rf7 Re8 Rd3 Rg8 Rfd4 Rf4 Be1 Bf2 Rg3 Bd8 Rg5 Nc7 Rg3 Na6 Rg5 Be3 Bf2 Bc7 Bc4 Be2 Bcb5 Bg4 Be2 Bh3 Re1 Rf1 g1R Bg2 Rd1 Bh3 R1g3 Bg2 Bg1 R1f2 Rf1 R2f3 Rf2 Bf1 Rfg2 Bf2 Rfg7 Qe8 Re7 Qb8 Rf7
n5rn/5k1B/N2n1B1n/PbNnr2K/PnR5/1P1Rp1bR/1b3q2/1Q3Nr1 w - - 0 1 illegal: Other
1rn4R/6BQ/1pnBRn2/PP3r2/1bnn2kN/RKP4q/n3bbB1/2r2N2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 d4 c5 b5 cxd4 Qd2 Nh6 Qc3 Ng8 Qb4 axb4 Kd1 Kf7 f4 Kf6 a4 d5 g4 e5 a5 h5 Nf3 h3 Be2 h4 Rg1 b3 Ra3 h2 Bd3 h1N Rg3 b6 Be3 e4 Nbd2 h3 Ng1 h2 Nh3 b2 Bf2 b1N Nf3 e3 Ra1 e2+ Kc1 e1B Kb2 Nd2 Rg1 Nc6 Rb1 Nc4+ Kb3 Qd7 Bf1 d3 Bg2 d4 Rd1 d2 Ra1 d1R Nd2 d3 Ng5 Rh5 Ra3 Bb4 Ngf3 Ng3 Nh4 h1N Bc5 Nge7 Nf1 d2 Bd6 Nf2 Rh1 Ne2 g5+ Kf7 g6+ Kf6 g7 Ng4 g8Q Rc1 Rh3 d1N Qh7 Bf2 Re3 Ndc3 Re5 Na2 c3 Bb7 Re4 Rb8 Re5 Nc8 Re3 Qg7 Re6+ Kf7 f6 Rf5 Qh6 Qh7 Qh5+ Kg8 f7+ Kg7 f8R Nf6 Rh8 Ba8 Qf7+ Kh6 Qg7+ Kh5 Qb7 Rc5 f5 Kg4 Qd7 Qh6 Qh7 Qe3 Bf8 Qh3 Bg7 Ng8 f6 Rf5 f7 Nf6 f8B Ned4+ Ka4 N6a7 Bd6 Bf3 Bh6 Nac6 Bg7 Nc2 Kb3 Bd1 Ng6 Be2 Nh4 N2d4+
6Rr/3NbPK1/1Bbb2Q1/4P3/1nnN1qR1/1rk1bBp1/3rPB2/2bb1nR1 w - - 0 1 illegal: No proof kernel
5b2/1b2P1Rn/1RpNnbB1/1rR2PP1/k2Nr3/1qn3B1/1b2QK2/nb3B1n w - - 0 1 illegal: No possible last move, all moves rejected
n5b1/1BPRnN1Q/p2r1nPB/R1n1bn2/2kb1rN1/4R2q/P7/N1bb1K2 w - - 0 1 illegal: No possible last move
2q2bKQ/1b3Rr1/n1BrPNn1/1R3Pb1/k3N2r/1p1b1r2/3P1N1n/B3Br2 w - - 0 1 illegal: No proof kernel
2r2bn1/1Rr1q1N1/n3p2n/1BNP1b1B/b1KB2n1/1RrQP1r1/1R3rPk/8 w - - 0 1 illegal: No possible last move, all moves rejected
1N3RbR/2K1bn2/3P1p1P/Br1B2q1/1r6/2nN1r1b/Q1rk2P1/n3NRrb w - - 0 1 illegal: No proof kernel
QbqN1qK1/1bn2Bnp/1rr1BRRP/1P2q3/N5rr/3P1r2/4R3/2r1Bk2 w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 c4 a5 f4 e5+ Kh5 g5 h4 e3 c5 e2 d3 e1R c6 g3 f5 g2 c7 e4 f6 g4 f7 a4 Ra2 a3 Qf3 b3 Qd1 b2 Nc3 b1R Qb3 g3 Qa4+ Rb4 Rd2 Ke3 Nf3 g1Q Na2 g2 Qa5 Nh6 Nh2 Na6 Nf3 Rb8 Nh2 Rb6 Bb2 Bd6 f8R Qf2 Rg1 Nf5 Bc3 Bb7 c8B Bb8 Be2 Rf1 Be6 Qe8+ Kg5 Ng7 h5 Qf3 h6 Kf2 Rf5 e3 Kf6 Rh4 Ng4+ Ke1 Bb4 Qfc6 Nc3 a2 Qa4 a1R Ne5 Rc1 Bh5 e2 Nf7 Qd6 Qa5 Qec6 Rc2 Rc8 Nd8 Qcd7 Rd2 Rcc6 Na4 Qc8 Kf7 Nc7 Kg8 Qe7 Bhf7 Qc5 Rh1 g1R Qa8 Rf3 Rf6 Kf1 Rh2 e1Q Rdg2 Qe2 Rgg6 Qee5 Be1 Rgg4 Re2 Qf8+
b1qn1b2/4PP1B/3bbKN1/1kBrPnp1/R1N1R3/2Q1nrr1/r1R2B2/7b w - - 0 1 illegal: No proof kernel
N2q2B1/1PnnBK2/1r1RNr1P/8/1N2r1pn/1R3bRn/Q5P1/1rkbn2b w - - 0 1 illegal: No proof kernel
1k1Bq1nr/1pq2B2/RN3R2/1Q1K4/NP5b/1b4bP/qq4RP/nr1qBq2 w - - 0 1 illegal: No possible last move
kNnNB1b1/1p2Q1q1/3P4/KrqPrqP1/n1qr2R1/6B1/2qqRR2/4bN2 w - - 0 1 illegal: No possible last move, all moves rejected
2R3n1/P1qBPn2/k1Nq2rr/1p2q1B1/1PBN2Rq/1Qbbqbq1/3R4/3K4 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 Rh3 exf4 Qb3 a4 Rh1 axb3 g4 Kd7 e4 c5 d4 Kc7 a4 Kb6 e5 f5 g5 h5 g6 h3 g7 f3 e6 c4 e7 f2+ Kd1 c3 d6 f4 d5 b2 d7 f3 d6 h4 Rh2 c2+ Kd2 Rh6 Bb5 f1B Be2 f2 Bb5 Ra6 Ra2 Qc7 d8R Bg4 d7 Bf3 Rg2 h2 Rg5 h1Q Rg6+ Nc6 Ra1 h3 Ra2 h2 Nc3 b1Q Rc8 Qb2 d8Q Qg2 Nce2 h1Q Qd5 Qbe5 Nd4 Qh4 Rg4 Nd8 Nge2 Qgg3 Bd7 Nf7 a5+ Ka7 Qc4 b5 Qb3 Rag6 Nc6+ Ka6 Ned4 Bd3 Rb2 f1Q Ra2 Nf6 g8B Bg7 Rb2 Qfh3 Ra2 Qcd6 Rb2 Nd8 Bc4 Ng8 Ra2 Nf7 Rb2 Kb7 a6+ Kb6 a7 Ka6 Kc3 Bh8 Bg5 c1Q+ Rc2 Qce3 Rd2 Qhh2 Kb2 Qc7 Kc1 Qed6 Nc2 Bc3 N2d4 Bde2 Kc2 Qge5 Kc1 Q2g3 Kc2 Bd3+ Kc1 Bg2 Kd1 Bf3+
q1B1N1rq/q4b1R/NQ1b2n1/B4P2/1qP4R/1RpKr3/b2PN1n1/b3k1b1 w - - 0 1 illegal: No proof kernel
b2NRB2/b2r2BN/2bbK3/QqP2n1q/4Pk2/nN3B1P/q2bp3/1Rr4q w - - 0 1 illegal: No proof kernel
2NbR2B/3q1rKR/3PP1BN/2qqbr2/np4bP/1kb1NBQ1/5qq1/6n1 w - - 0 1 illegal: No possible last move, all moves rejected
3r1N2/6bP/Rb2p3/1q2Pb2/BkP2BrK/1q6/1b2rr1n/QRNnbB1N w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 f5 g5 c5 dxc5 f4 g6 hxg6 Qd6 g5 Qd3 g4 Qg3 fxg3 h4 d5 e4 Kd7 f4 Kc6 c4 b5 a4 g5 h5 b3 a5 g2 Kf2 d4 Kg3 b4 f5 d3 f6 b2 e5 b3 a6 d2 h6 d1Q a7 Bf5 f7 e6 h7 Nh6 Ra3 Qa5 Ra4 Bg7 f8Q Na6 Nd2 b1R Rb4 b2 Ne4 Nc7 Qc8 Rd8 Nh3 g1B Rb3 Bf2+ Kh2 g3+ Kg2 g4 Rd3 Be1 Neg5 Qb5 Bf4 Qdb3 Ne4 Rf8 Qb8 Nd5 Ng1 Nc3 Nf2 Nd1 Ne2 Rg8 Qf8 Rd8 a8N Ra1 Rd5 b1R Nc1 Rb2 Nb6 Re2 Nd7 Raa2 Qe7 Rab2 Nf8 Rbd2 Qa7 Rb2 Kg1 g2 Kh2 g1B+ Kg2 g3 Qa1 Ng4 Kh3 g2+ Kh4 Nh2 Rd6+ Kc7 c6 Kb6 c7+ Kc5 c8B Kb4 Ra6 Rbd2 Kg5 Ra2 Bd7 Rab2 Ng4 Bd4 Nf2 g1B Kh4 Rbc2 Bc6 Bb2 Bfg2 Qc5 Ba4 Qb5 Bf1 Bec3 Ne4 Bb6 Ng3 Be1 Rg1 Rf2 Nh1 Rce2 Rg3 Bh8 Rd3 Rg5 Rd5 Bg7 Rd2 Bc3 Rb2 Rgg2 Rb1 Bb2 Be3 Rg3 Bf4 Rg4+
1b2K1N1/1k3NRp/q4Qnn/1PBn2R1/P2rqnBb/5B2/1Nq4P/q1q4r w - - 0 1 legal: proof: e4 d5 b4 dxe4 f4 g5 Nf3 a5 Ng1 axb4 c4 gxf4 Be2 b5 Qc2 b3 Qd1 b4 Bd3 Ba6 Bf1 Bb5 cxb5 Qd4 Na3 Qd6 Nb1 Qd8 Kf2 Kd7 d4 Kc8 g4 e5 a3 f5 d5 c5 d6 f3 Ke3 c4 g5 f2 g6 f4+ Kd2 c3+ Ke2 e3 Kf3 b2 Ke4 c2 Kd5 e2 Ke6 e1B Kf7 e4 g7 f3 d7+ Kb7 Qe2 e3 Bg2 f1Q Qd1 e2 Bh6 c1Q Qc2 b3 Qd2 Bd6 Qd3 Qf6+ Ke8 Bh4 Qg6 e1N Be3 Nd3 Nc3 b1Q Bc5 b2 Nh3 Qbc2 Ne4 b1Q Nf4 f2 Rg1 Nh6+ g8B Qfe2 Bh1 f1N Bf3 Ne3 Rg5 Nd5 Bg4 Nc6+ d8N+ Kb8 Qg7 Nce7 Nf7 Ng6 Ra2 Qba1 a4 Ra7 Qf8 Rc7 Qe7 Qe6 Nf6 Kb7 Ra3 Q2e4 Rb3 Nf2 Rg3 Nh3 Nd3 Nhf4 Nb2 Rd7 Rg1 Bb8 Bf3 Qa6 R1g4 Ne5 Rg7 Rc7 R4g5 Neg6 Ne5 Rd7 Qf8 Nb4 Be6 Re7+ Kd8 Qec6 Beg4 Rg8 Nf7 Re1 Qe8 Q6e4 Kd7 Rf8 Qe7 Rh1 Ng8 Re8 Qf6 Re6 Qe7 Rd6+ Ke8+ Rd7 Qe5 Rd4 Qe6 Nbd5 Qe5 Ne6 Qf6 Nef4+
q1NBbb2/q1q2nPp/Bq4N1/kP6/nrqP3K/bR3B2/1RQ3b1/2N2r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 Kc7 g4 Kb6 g5 a5 e5 h3 g6 h2 g7 c3 e6 c4 e7 c2 e8B a4 Bd3 f3 Kg3 f4+ Kf2 c3 Be2 a3 Bd3 a2 Beg6 Na6 Ba3 c1Q Bc4 c2 Nc3 Nc5 Bh5 Ra4 Bd3 Bd7 Nge2 Nh6 Rb1 a1Q Ne4 Be8 Rb3 Nf7 Nd6 Qf6 Rg1 h1Q Rg2 Qd8 Rh2 Qc7 Rg2 Qcb1 Bg4 c1B Qc2 Bb2 Nc1 Rg8 Bdf5 Qaa2 Bc8 Qaa1 Ba6 Rh8 Rh2 Qg2+ Ke1 f2+ Ke2 Qd5 Bf3 f1B+ Kf2 Qa8 Rg2 Bc4 Rh2 Bd5 Kg2 Qaa2 Kh3 Bb7 Kh4 Bbc6 Bh5 f3 Rd2 f2 Bf3 f1Q Rg2 Qc4 Rd2 Ka7 b6+ Kb8 b7 Ka7 b8N Kb6 Re2 Bd5 Nc6 Qaa1 Bg4 Bg2 Bf3 Qaa7 Ne7 Qaa2 Qc3 Qg6 b5 Rb4 Rd2 Ka5 Qc2 Na4 Ndc8 Qgb6 Re2 Qd5 Ng6 Qda8 Rc3 Qac4 Rf2 Rb3 Be7 Ba3 Bd8 Rb4 Rb3 Bc5 Re2 Rf8 Bg4 Nd6 Bh5 Rf1 Bf3 Nf7 Qc3 Qd7 Reb2 Qdc7 Qc2 Bf8
1Q1n2K1/1NqNRP1p/N2B4/Pkq1bb2/3R1Pq1/1B2b1qn/5qRb/3rr3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kc6 Ke4 e5 f4 b5 d4 h3 g4 b3 a4 b2 a5 h2 g5 c3 f6 b4 f7 c2 g6 b3 g7 Bf5+ Ke3 e4 Nf3 Nf6 g8N Bd6 Qe1 Ng4+ Ke2 e3 d5+ Kb5 Nh6 c5 Ne5 c4 Kf3 e2 Nd2 b1Q Ra2 b2 Qh4 e1B Bd3 Bg3 Ne4 Re8 Nd7 Nf2 Nec5 Nh3 Re1 Nc6 Re7 Be5 d6 Qc7 Na6 Nd8 Qf6 Rb8 Qh8 h1Q+ Ke3 Qhc6 Be4 c3 Bd5 Rc8 Bb3 Bh2 Bd2 c1B Qg8 Bd3 Nf5 Q6b6+ Kf3 c2 Kg4 Qd4 Kh5 Qf2 Bb4 Be3 Kh6 Qbe1 Qf8 b1Q Qh8 c1Q Rd2 Qff1 Rg2 Qff2 Ba3 B5d4 Qe5+ Q1c5 Kg7 Qbc2 Bc1 Qc6 Nf8 Q5d5 d7 Qh4 Rf2 Nb7 d8R Qg4+ Kh8 Bd2 Rg2 Qeg3 Rc7 Qd6 Rdd7 Nd8 Ba3 Qa2 Ra7 Rc1 Bc5 Qe7 Bb4 Rd1 Nd6+ Kc6 Ba3 Bf5 Rab7 B2c3 Rb4 Qb5 Nb7 Qaf2 Ra4 Qd6 Bc5 Re6 Re7 Qb6 Nd7 Kb5 Nf6 Qdc6 Qb8 Ree1 Bd6 Be3 Rc4 Be5 Rd4 Ng5 Kg8 Qbc5 Nd7 Qc8 Re8 Q8c7 Re7 Nh3+
b2q1bkN/nq1bP1N1/R7/bRqn4/1Br1r2q/2pQNP2/q1P1B3/3K1B2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 h4 gxh4 axb5 e5 Qd3 exd4 e5 Bc5 Qe2 Bf8 Qe4 fxe4 b4 Kf7 g4 a5 b6 d5 g5 h5 b5 c5 b7 h3 b6 a4 Kd2 c4 Ra3 h4 Ke1 h2 Rd3 h3 Ba3 e3 Ke2 Nf6 e6+ Kg8 e7 Nc6 b8Q Bd7 b7 Rh4 g6 Re4 g7 Na7 Bd6 a3 Nc3 a2 Ke1 a1Q+ Ke2 Qa2 Bb4 Qc7 Qc8 Qc5 Qd8 Rc8 b8N Rc6 Ke1 e2 Na6 Rc8 Rg3 d3 Nd1 d4 Rg5 Nd5 Ne3 Rc7 Kd2 e1B+ Kd1 d2 Nf3 Rc8 Rhg1 h1B Nh4 h2 Nc7 Bg2 Rh5 h1Q Ng6 Qh4 Ne8 Bh1 Nh8 Rc7 Rg6 Rc6 Ke2 Rc7 Ra6 Rc6 Bg2 d1Q+ Kf1 Qdb1 Ke2 Qbb2 Bf1 d3+ Kd1 d2 Rg5 Qe5 Rf5 Qb8 Be2 Qb7 Rg5 Kh7 g8B+ Kh6 Qb6 Nc7 Rg7 Qf5 Ba3 Ree6 Ng2 Qa8 Bf3 Qd8 Qd4 Qfh5 Rg5 Re5 Bf7 Kh7 Ne3 Ree6 Bg6+ Kg8 Ng7 Rc5 Bg4 Ba8 Bd3 Ree5 f3 Re4 Ke2 Rc6 Bh3 d1Q+ Kf1 Qc1 Ke2 Qcb1 Bf1 Qb7 Rb5 Ba5 Kd1 c3 Bde2 Rc4 Bb4 Qc5 Qd3 Nd5
5b1R/3rP1Q1/3Bqbrr/2N1rPnb/2P1NR1r/3K2N1/bRp5/2k1qB1n w - - 0 1 illegal: No proof kernel
1BR2b2/1BP3rp/bb3RBK/2nq1P1b/6b1/2q2k2/1NP1N1r1/1rR2rQn w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 axb4 h5 c5 dxc5 g6 Ne2 gxh5 Ng1 h4 Kd2 Kf7 Ke3 Kg6 Kf4 d5 g4 b5 a4 e5+ Ke3 Kg5 a5 h3 a6 b3 a7 d4+ Ke2+ e3 Kf3 b2 c6 b4 c7 h2 Ke4 d3 f3 b3 Ra4 d2 Rc4 e2 Rc3 e1B Bg2 Ba6 Rc6 Nd7 Rd6 Ne7 Rc6 Nc5+ Ke3 e4 Bh3 Qd5 Rf6 Rg8 Na3 b1R Ne2 b2 Nc4 Rg7 f4+ Kh4 Rg1 h1B g5 Bf3 g6 Bh5 Bf5 Ra1 Rf1 b1R Nb2 Bg3 Qe1 d1B Rg1 Rb8 a8B Rd8 Qf1 Be1 Bc6 Ba5 Bb7 Bb6 Bd2 Rb8 Bc3 Bg4 Bd4 Rd8 Qe1+ Kh3 Rf1 Kg2 Rh1 Rd7 Rf1 Rg8 g7 Bh5 Bg6 Nf5+ Kd2 Ng3 Ke3 Nh1 f5 Bg4 Kf4 e3 Kg5 Rf7 Kh6 Bh5 Ng1 Bdg4 Ne2 Rd7 Rg1+ Kf3 Qg3+ Ke4 Qh2 Kf3 Rc1 Rf7 Qg1 Re7 Nf4 e2 Be3 e1Q Ne2 Qc3 Bf2 Ba5 Bd4 Na4 Ba7 Bb6 Bb8 Nc5 Kg5 Rh8 g8R Rd7 Rg7 Rg8 Re7 Rg7 Re8 Rde7 Rc8 Re5 Nf4 Re2 Kh6 Rg2 Ne2 Ra4 Re1 Rd4 Rc1 Rd1 Rd6 Re1 Rf6 Rf1
RK3N1Q/1PPbbn2/3qqbrr/4RP2/1q1R3B/Nnq2qp1/4b1BN/4k3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 Kh4 b6 e5 f5 a5 h3 Kg3 b5 g5 h4 d5 b7 a4 c5 e3 Kd3 Kf2 h5 g3 c6 e4+ Kc2 d3+ Kc3 a3 Kd4 a2 Ke5 d4 c7 e2 b6 e1Q h6 d2 h7 e3 Be2 d3 Rh4 g2 Nc3 g4 Rh3 g3 Bf1 e2 Nd5 Na6 b8R Nh6 b7 Bd7 Nf3 g1Q Nh2 Be7 Bg2 Nc5 Nb6 Nb3 Rh4 Ra6 Nc4 Rg6 Ra8 Nf7+ Kd5 Qg8 Na3 Qgf1 Rd4 Qf8 Qc2 d1B Qb2 Qc3 Bg5 d2 Bh4 e1Q Rc1 a1B Rc2 Qce3 Rc5 Be2 Rca5 d1Q Qc3 Rhg8 h8N Rh6 Ng6 Rg7 Qb2 Q3c3 Rb5 Qc8 Nf8 Rgg6 Rba5 Qed2 Rb5 Ke1 Rc5 Be6+ Kc6 Qff3+ Kb6 Bd7+ Ka7 Qb4 Rcd5 Qdc3 Re5 Qe8 Rg4 Qdd6 Rd4 Bd8 Kb8 Qee6 Qc2 Be7 Qe4 Rf6 Qg4 Bb2 Qg7 Rfg6 Qg8 Bc1 Qg7 Bcg5 Qh8 Bgf6
6q1/kPp1nrQr/nrP2Nn1/3RBK2/2rN4/3rbNR1/b1qR3P/n4B2 w - - 0 1 legal: proof: f4 b5 e4 h5 g4 hxg4 a4 d6 e5 dxe5 axb5 exf4 Ke2 f3+ Kf2 Qd4+ Ke1 Qd8 c4 Kd7 Kf2 f5 Kg3 a5 Kf4 g5+ Ke5 a4 b4 f4 d4 a3 b6 Kc6 b5+ Kb7 d5 g3 c5 a2 d6 g4 d7 f2 Qe2 f3 Bh3 f1R Qe1 g2 Bh6 f2 Qa5 g3 Be6 Na6 Bg7 Rc1 Bf7 f1R Qa4 Rb8 Qa3 Rc4 Qb4 Rh7 Bh8 Bh6 Qc3 Be3 Ne2 g1Q Bf6 g2 Qd3 Qf2 Qg6 g1N Nd4 Nf3+ Kf5 e5 Qg7 e4 Nd2 Ne5+ N2f3 Qc2 Rg1 Ng6 Rd1 a1N c6+ Ka8 b7+ Ka7 Be5 N8e7+ Kg4 Qf8 Rd2 Qg8 Rg3 Rd1 Be6 Rf1 d8R Rd1 Bf5 Be6 Rd5 Nc8 Rf2 Rd3 Rd2 Bf2 Kg5 e3 Bh3 e2 Bf1 e1R Kf6 Rb1 Kg5 Ra8 b8N Be3+ Kf6 Bf7 Nd7 Rb8 Kf5 Rb6 Bh3 Rf1 Nf6 Rf2 Bf1 Rcc3 Rd6 Ba2 Rd5 Rc4 Ng4 Nb4 Kf6 Ra6 b6+ Kb8 b7 Rb6 Rg1 Qh8 Rg3 Ka7 Ke6 Qd8 Ng5 Rf7 Ngf3 Qg8 Nf6 Na6 Kf5 Nce7+
3N2Rr/B1kqn1b1/2r5/N4rp1/q2PR1PN/R2bnqn1/3P1Brn/1K1Q4 w - - 0 1 legal: proof: b4 a5 f4 axb4 c3 d5 g3 h5 f5 d4 cxd4 h4 f6 h3 Bg2 hxg2 Kf2 exf6 Ke1 f5 Ba3 f4 Bb2 Qd6 Bc1 Qd8 h4 Kd7 e4 f5 a4 b5 h5 c5 g4 g5 h6 b3 e5 c4 h7 c3 e6+ Kc7 a5 c2 e7 b2 e8R b4 a6 b3 a7 f3 Nc3 b1Q Ra3 f4 Nge2 g1R+ Kf2 b2 Rh6 Nd7 Rhe6 Qa2 Nb1 Ndf6 Re4 Qd7 Ng3 Rg2+ Ke1 Nd5 Nf5 Ne3 Nh4 f2+ Ke2 f1N+ Kd3 f3 Rd8 Rb8 a8N+ Kc6 Kc3 f2 Nc7 Ba6 Ne6 Nh2 Rc8+ Kd6 Nd8 Rb5 Rb8 Ne7 Ra8 Rg8 h8B f1N Bf6 Kc7 Be5+ Qd6 Rb8 Bg7 Bg3 Rf5 Bf2 Bd3 Rba8 Qad5 Rb8 Q5c6+ Kb3 Re8 Ka2 Qdd7 Raa8 Qf6 Nb7 Ng3 Na3 b1R Nc4 Rc5 Ba3 Rb6 Ra5 Rd5 Bc5 Qf3 Ra3 Rc6 Ba7 Rh8 Rg8 Re5 Nd8 Rf5 Na5 c1Q Ra4 Qc5 Ra3 Qb4 Ka1 Qa4 Ka2 Rc2+ Kb1 Rc6+
4R1Qb/b3rN2/N2nq2r/kq3p2/1r6/q1NqBP1P/2RPBn2/Br2K2b w - - 0 1 legal: proof: e4 b5 b4 h5 a4 d5 g3 dxe4 g4 hxg4 axb5 c5 Bc4 cxb4 Be2 Nf6 Bf1 Ng8 c4 Kd7 c5 Kc7 h3 e5 c6 Kb6 c7 f5 Ba3 g5 Ra2 a5 Nc3 e3 Nf3 b3 Bb4 g3 Be7 g4 Bc4 a4 Bc5+ Ka5 b6 g2 b7 g1B Ne4 b2 Qc2 b1R+ Ke2 a3 Bd4 g3 Be6 g2 Ne1 Bg7 Ng5 e4 Rb2 a2 Qc4 a1Q Bc5 Qa3 Be7 Nf6 Ra2 Na6 b8B Nb4 Ngf3 Ne8 Ng5 Bb7 c8N Nd3 Na7 Rh6 Nb5 Nd6 Nc2 Bh8 Ba7 Rb8 Nf7 Qe8 Nc3 Qb5 Qd5 Rb4 Bc5 Re8 Bf6 Re7 Qb3 Ba8 Bc4 Bd5 Nd4 Ba8 Ne6 Bc6 Kd1 e2+ Kc2 e1R Be3 Rf1 Nc5 Rb1 Na6 Bb7 Na4 Ba8 Ba1 Bb7 Nc3 Bd5 Bg5 e3 Rb2 e2 Be3 e1Q Qa2 Nc5 Be2 Nce4 Qc4 Qf1 Qc8 Ba8 Qg8 Bb7 Bd1 Qfc4 Be2 Qe6 Ra2 Bh2 Rc1 g1Q Re1 Qf1 Rb2 Bg1 Ra2 Ng5 Rb2 Bh1 f3 Nge4 Ra2 R1b2+ Kd1 R2b3 Rc2 Bf2 Bc4 Qd3 Re2 Bg1 Ke1 Nf2 Bg5 Qde4 Re3 Rb2 Be2 Qed3 Bf4 Nd1 Re5 Ba7 Be3 R2b3 Rc5 Rb2 Rc8 Nf2 Re8 Rb1+
QB1rn2b/3R3q/q7/2r1P2K/4RN1R/Nn1P1P2/1pn1r1b1/rbkBNb2 w - - 0 1 illegal: No proof kernel
bq5r/1B3Qbk/br1N4/n1P3RP/1q2K3/BN1rNR1r/2p2Pbn/2B3q1 w - - 0 1 illegal: No proof kernel
4N1qB/b1qn1q1Q/2b1R2p/2k5/B2N3P/PR1P1b2/R1Nq1rr1/n3n1Kn w - - 0 1 illegal: No possible last move, all moves rejected
qB3k2/4R1b1/n2qnP1p/N7/1B3NqP/3nKb1B/QrP2rb1/3R1Nbn w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 a5 d4 g5 f4 e5 h4 e3 d5 e4 b6 a4 f5 h6 b7 a3 d6 g3 Ra2 b3 Qd2 g2 Qb4 b2 Qc4 g4 Bd2 g3 Bb4 Ne7 Qc5 Nd5 Ra1 a2 Rh3 Na6 b8B Ndc7 Qd5 Bg7 Qe5+ Kf8 Qd4 Ne6 Be1 Bb7 Ba7 Rb8 Nf3 g1Q d7 g2 Kd1 e2+ Kd2 e3+ Kd3 Rg8 Nh2 Bf3 Ba5 e1N+ Kc3 e2 Kd2 Rb7 f6 Nd3 Bb8 e1N Qc4 Nf2 Ke3 Ned3 Nc3 Qc7 d8N Qd6 Rc1 b1B Ne2 a1Q Nc6 Ba2 Rd1 Rb2 Bb4 Bb3 Nf4 Nh1+ Kd2 Ba4 Na5 Bac6 Qa2 Qd4 Rg3 g1B Bh3 Bg2 Nf1 Bcf3 Rg5 Qe4 Rc5 Qf5 Rc7 Qg4 Qa4 Qa2 Re7 Qad5 Qa2 Qa8 Ng3 Bh8 Nf1 Rg6 Rb1 Bg7 Ra1 Rg5 Rd1 Rf5 Nh5 Re5 Nf4 Re2+ Kc3 Rd2 Kc4 Rf2 Kc3 Be2 Kd2 Bef3+ Ke3 Qd7 Qa3 Qdd5 Qa2 Qd6
1N1nkN1K/4nb1B/3rPb2/nrQ2Rr1/qP1B1bRP/2NRrp1b/8/5q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 a5 c4 g3 h4 g2 c5 f3 b6 f4 b7 g4 e5 f2 c6 a4 c7 f3 Nh3 g1B Ba3 g3 Nf4 g2 Bc1 a3 Be2 f1Q Be3 a2 Qd2 Bh6 Qc2 Qd7 Ng6 Qa4 Nd2 Ne7 Ne4 Nbc6 b8R Nd8 Nc5 Bf4 Nf8 Rh5 Rd1 a1N Na6 Bh3 c8N Nb3 Na7 Na5 Rb5 Rb8 Rc5 Rb5 Nb8 Rh7 Rd2 Rg7 Qc4 Bgh2 Rg1 Bg5 Bf2 Bhf4 Rd1 Bf6 Rd2 Rb6 Nb5 Rb7 Nc3 Rb5 Rh1 g1R e6 R1g5 Rh2 Re5 Rg2 Re4 Rg4 Re5 Rd1 Re3+ Kd2 d3 Bg1 d4 Rf5 Rd5 Qc5 Rde5 Kc1 d2+ Kb2 Rd5 Bd3 Rde5 Bc2 d3 Bf2 R3e4 Bd4 Re3 Ra1 d1R Ra3 d2 Bb1 Rd5 Rb3 Rd6 Kc2 Re2 Kd3 Rc1 Bc2 d1B Bb1 Rd2+ Ke4 Rd3 Rb2 Bb3 Rd2 Bc4 Rd1 Bb5 Bc2 Ra1 Rd2 Ra3 Rd1 Rd2 Bb1 Rc2 Rd3 Re2+ Re3 B6g5 Nd5 Bc6 Qb6 Rf7 Rf6 Ba8 Qc7 Rc3 Qa7 Rc7 Qc5 Rb7 Nc3 Rb5+ Nc6 Nc8 Kf5 Rfd7 Kg6 Rg7+ Kh5 Bb7 Nb8 Ne7 Bf5 Be4 Rd3 Re3 Rf7 Rg8 Bh7 Bf5 Rg7 Bf6 R7g5 Bg6+ Kh6 B4e5 Rf5 Bf7 Bg6 Bf4+ Kh7 Rg7+ Kh8 Qa2 Bh7 Qa3 Nd1 Qa4 Nc3 Rg5+
4Q2b/nb6/BqBPK1p1/B2Nn1n1/1N4r1/1Rq1r1bP/Pn3k1N/Rr1b4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 e4 b5 h3 c5 Be3 f5 Qb3 g3+ Kf3 g2 Bc1 g6 Nc3 c4 Na4 c3 Rh2 c2 Ba3 c1N Nc5 Nf6 Nd7 Nc6 Ne5 Nh7 Be2 Nd3 Bf1 Nb2 Qd1 Ng5+ Kf2 f3 Ke3 f4+ Kf2 Qc7 Qe2 Bg7 Rh1 Ra4 Rd1 Na7 Rd2 Bb7 Qd3 Qc3 Qe2 Re8 Ng4 Bh8 Rd3 Re7 Qe1 Re6 Ne2 Re5 Kg1 f2+ Kh2 f3 Kg3 g1B Nf4 Bh2+ Kh4 Re7 Be2 f1B e5+ Kd7 d6 Kc6 d7 f2 e6 b3 Rg1 b4 d5+ Kc5 d8N Kc4 Rdg3+ Kd4 Ba6 Be2 d6 f1N Nd5 Nd2 Nc6+ Ke4 Rf1 Ndc4 Rd3 Re8 e7 Bf4 Nh2 Ne5 Qf2 Bh5 Ra1 Bd1 Rf3 Nbd3 Qb6 b2 Qb5 b3 Bb4 b1R Ba5 b2 Ncb4 Rc1 Bb6 b1Q Ba5 Qbb3 Rg3 Nb2 Qd7 Rb1 Qc6 Rg8 e8B Rg7 Qc8 Re7 Bc6 Re6 Qe8 Kd4 Nd3 Qb6 N3b4 Ng4 Be2 Re3 Ba6 Ne5 Rg2 Nbc4 Rb2 Ke4 Rb3 Nb2 Ng4 Kf3 Nh2+ Kg2 Nd3 Rae4 N3b4 Kf2 Qg8 Ne6 Qa8 Nc5 Qe8 Bg3+ Kg5 Ne6+ Kh6 Ng7 Kg5 Rg4+ Kf6 Ne6+ Ke7 Qd2 Nf4 Ng5 Nfd5 Nh7 Ke6 Qdd4 Qd7 Qc3 Qe8 Ng5+
4k1b1/2rr2r1/q1Pq1RNP/B1b2pr1/1q2B1b1/Q4Bn1/2RqP1KN/1R1n4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 g5 a4 b5 c4 d5 h4 b3 a5 g4 a6 b2 a7 f3 h6 b4 h5 d3 h7 g3+ Ke3 d2 c5 d4+ Kf4 f2 Kf3 g2 h6 b3 c6 d3 Kg3 Na6 Nf3 g1R+ Bg2 f1Q Ne1 Nb4 Ra2 Ne7 Rh5 Nbd5 Ra6 Rg8+ Rg5 Ne3 h8R Bg4 Rc5 Rg7 Ra1 Rc8 a8B Rc7 Nf3 Qd6+ Ne5 N7f5+ Kh2 f6 Rc2 Ng3 Ng6 f5 Bb7 Qf3 Qf1 d1Q Nd2 b1Q Ba6 b2 Qe1 Qf1 Nf3 d2 Bd3 Qa2 Be4 b1B Bb2 Qa6 Bc3 Ba2 Rb1 Bg8 Ba5 Be7 Qf2 Qfe1 Qf1 Bf8 Bh1 Qc1 Qh3 d1R Rh7 Qcd2 Bg2 Rgd7 Rf7 Re7 Rf6 Rg7 Bh1 Q2b4 Bg2 Rd4 Bh1 Qed2 Bg2 Nd1 Bh1 Re1 Kg2 Rf1 Nh2 Rf3 Bd5 Re3 Bf3 Ree7 Qh5 Red7 Qg5 Rc4 Qe3+ Re4 Qa3 Ree7 Nh8 Rg5 Ng6 Rg7 Be4 Qb3 Kg1 Qbb4 Bhf3 Qe6 Kg2 Bc5 Qd3 Qd5 Qa3 Qd6
1bb3R1/1B1Q3P/1B2bR2/1nq3qk/1nPBr1N1/NpP4q/b1rn2K1/q1R5 w - - 0 1 legal: proof: g4 c5 e4 h5 b4 hxg4 e5 a5 d3 axb4 e6 c4 dxc4 fxe6 Bh6 e5 Bc1 e4 a4 Kf7 f4 Kg6 Kf2 d5 h4 e5 f5+ Kh5 c3 b5 a5 g5 f6 b3 a6 e3+ Kg3 d4 a7 b4 f7 e2 Bd2 e1Q+ Kg2 d3 Ra6 e4 Ra3 b2 Nf3 g3 Qb3 g4 Ra1 e3 Ng5 e2 Nh3 Bd6 f8B Nh6 Rh2 Nf7 Ng5 Nc6 Ra6 Bb8 Ra3 Nd6 Ne4 Qg5 Qd1 b3 Be7 Nb5 Qc1 Nb4 Kg1 g2 Bc5 Qg3 Qd1 e1N Bde3 d2 Ra1 Re8 Bb6 Qh3 Nf2 Re4 Na3 b1B Bed4 Ba2 Rc1 Qc5 Be2 Be6 Bf3 Bc8 Qe2 d1B Qd2 Be2 Nd1 Bd3 Ne3 Be6 Kf2 Bdb1 Rh1 Qg5 Rf1 g1Q+ Ke2 Qgh1 Kf2 Bc8 Bg2 Nf3 Qd3 Nd2 Bf3 Re6 Bb7 Qhd5 Kg1 g3 Rf6 g2 Ng4 Qc5 Qf5 Re3 Qd5 Be6 Qd7 Bbf5 Kf2 Re4 Kg1 Bf4 Kf2 Re8 a8R Re7 Rg8 Bb8 Qc7 Bc8 Qd7 R7e5 Kg1 Be6 Kf2 Qf3+ Kg1 Qff5 Kh2 g1Q+ Kh3 Qd1 Kg2 Re2+ Bf2 R5e3 Rc2 Qa1 Rc1 Qd3 Bd5 Ne4 Ba8 Rc2 Bb7 Nd2 Bg1 Re4 Bd4 Qg7 Rf3 Kg6 h5+ Kg5 h6 Kh5 h7 Qgg5 Rf6 Qh3+
3BN1n1/2NrR1Kp/b1b1r1n1/1P4q1/2P1rnRQ/2P2nb1/1B2b1R1/2qB1k2 w - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 a5 f5 a6 fxe4 d3 c4 dxc4 bxa6 Nc3 a5 Nb1 a4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 b4 d5 f4 a5 g3 e5+ Ke3 d4+ Ke2 Kg4 b5 e3 Kd3+ e2 Ke4 a3 c3 h3 f5 a2 f6 h2 f7 d3 Qa4 e1N Bd2 Ba6 Qb3 a4 Be2+ Nf3 Bd1 a3 Qc2 Bd6 f8B Nd7 Ne2 Kh3 Kf5 Kg2 g4 e4 g5 e3 g6 Qg5+ Ke6 Nde5 g7 Ra7 Nd4 e2 Re1 h1B Bc1 d2 Bb2 Ng6 Qe4 Rd7 Be7 Bg3 Kf7 Kf2 Rg1 e1N Rg2+ Kf1 Ne6 Nd3 Nc7 Ndf4 Qd4 Nd3 Qh4 Ndf4 Ba4 d1B Nd2+ Ke1 Ne4 Kf1 Rc1 a1R Nf6 a2 Nfe8 Rb1 Rcc2 a1Q Rce2 Qa3 Re4 Be2 Bd1 Rc1 Re6 Rc2 Re5 Qa1 Re3 Qc1 Re6 Rcd2 Re3 R7d6 Bd8 R2d4 Re7 Rd7 Ba3 Re4 Bb2 Nf6 g8R Re6 Rf8 Ng8 Kg7 Nfe5 Rh2 Bc6 Rg2 Nf3 Rf5 Nf6 Rc5 Rf8 Re5 Ng8 Re4 Rf5 Rd4 Rfe5 Re4 Nh3 Rf4 Re4 Rg4 Nhf4
Br1qQ2b/qb4Pk/Rn3r2/4b1Pr/PR2NN2/4Bq2/qN1p2K1/n2b1B2 w - - 0 1 illegal: No possible last move
qn2R3/1b1B1NPn/1r5P/2qqb2k/1rpb1Qn1/N1b1B2P/2R1KN2/1R2q3 w - - 0 1 illegal: Other
1N2rb1K/R1nr1RPN/1p3B1b/n4rq1/P4rRB/k1PB1bQ1/7q/3b3n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 d5 Kd3 Kd7 a4 Kd6 g4 Kc5 f4 e5 f6 h5 f5 e4+ Ke2 d3+ Ke3 b3 Kf4 Kb4 Kg5 b6 Kg6 d4 g5 e3 f7 h3 f6 b2 Ne2 d2 Ra2 h2 Nbc3 b1R Rg1 h1Q Nb5 h4 Ng3 e2 Bb2 e1B Ne4 d3 Nd4 h3 Qg4 d1B Qg3 d2 Bd3 h2 Rg2 Bh6 f8R Nc6 f7 Bcg4 Nf6 Bgf3 Nh7 Nf6 Rg8 Rc1 Rg7 Ra5 f8B+ Rc5 Re7 Na5 Ra7 Nd5 Be7 Nc7 Kf6 Re8 g6 Ra1 g7 Qg1 Kf7 h1N Bh4 Qh2 Kg6 Rf5 Nc6+ Kc5 Nb8 Kb4 Bd4 Qe7 Rb2+ Ka3 Bdf6 Qe3 Kf7 Qg5 c3 Bf2 Rb4 Bc5 Rf4 Bf8 Kg8 Rb1 Kh8 Rb4 Rg4 Rbf4 Rg1 Bde2 Re1 d1R Rf1 Rd2 Re1 Bd1 Re7 Na6 Rf7 Nc7 Bc2 Rd6 Bd3 Rd7
4n3/1NBnkP2/2B2r1b/1N2bq1q/1N1P2b1/rRp1r2R/R1Qb2nP/2K2n2 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 f4 a5 b4 e5 d3 c5 Kd2 g5 f5 e3+ Kc2 e2 b6 e1N+ Kb2 e4 b5 a4 f6 g3 b7 e3 b6 g2 f7+ Ke7 Ra2 e2 Ra1 g4 Bd2 c3+ Kc1 a3 Nf3 g1Q Qc2 c4 Ng5 g3 Nh3 g2 Qa2 c2 Bb4+ Qc5 Nf2 g1R Nd1 Qd5 Ba5 Nf6 Nbc3 Nbd7 b8N Qf5 b7 Rg3 Qb2 a2 Bg2 Bh6+ Ne3 Ne8 Bc6 Ng2 Rg1 e1B Bc7 Ra3 Na6 Qh5 b8R Qcf5 Rb6 Rg6 Nb4 Rf6 Rb5 Rg8 Rb8 Rg3 Nb5 Rf3 Rf1 Rh3 Rf2 Rf3 Rb1 a1B Ra8 Rg3 Rf3 Rh3 Qa2 Be5 d4 Rg3 Rb3 Rh3 Kb2 c1N Qb1 Ne2 Qc2 Ng3 Kc1 c3 Ra5 Nf4 Nc4 Nf1 Ncd6 Rg3 Nb7 Ng2+ Rf4 Re3 Rh4 Nc5 Ra4 Be6 Rh3 Nd7 Qb2 Qff3 Qc2 Bg4 Ra6 Qff5 Rb1 Rb3 Ra2 Ra3 Rb3 Bd2+
r1BK2nR/N4Pr1/R1PR1bkb/1P1N4/n3q2p/3n2Bq/b3n2b/B2q3Q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 h5 g4 a5 b4 e5 c4 d5 c5 e3+ Kd3 h3 b6 a4 f5 h2 f6 a3 g5 h4 c6 e2 b7 e1N+ Kd2 d3 Ke3 e4 Kf4 d2 Ke5 d4 b5 a2 Na3 e3 Bh3 e2 Bd7 d3 Nc4 Bh6 Kd6 Na6 b8B Qe8 Nh3 Qe4 Bb2 Kg6 f7 Rh7 Nb6 Nc5 Kc7 Rg7 Kd8 Na4 Rg1 h1Q Bg3 Qhg2 Qc1 d1N Nf4+ Kh7 Rf1 d2 Nfd5 Nd3 Rf6 e1B Rd6 Qh3 Bg4 Bd7+ Nc8 Ndc3 Qb1 Bf2 Qh1 d1Q Be6 Ne2 g6+ Kh8 Bf5 Ba7 Bf6 Bb8 Na7 Bc8 Rb1 Bd7 Ba1 Be6 Rb3 Qc1 Ra3 Qd1 Nc3 Bc4 Nd5 Bb3 Bc8 Bc4 Bb2 a1B Bf6 Ba2 Bfe5 Nb6 Ra6 Na4 Bc3 Bb2 Bce5 Bbc1 Ba1 Bb2 Qg2 Bd4 Qh1 Bf6+ Ne7 Qee6 Bf4 Rh7 Rd4 Qe4 Rd5 Bbe5 Rd6 Kg7 Bh2 Bd4 Bf4 Bg1 Bfe5 Bh2 Bg3 Bc3 Nd5 Ne7 Be1 Bf6 Bf2 Be3 Bg3 Kh6 g7 Kg6 g8R+ Rg7 Re8 Bh6 Rh8 Ng8+
5nN1/3P3b/1qr1Pr2/6Bn/2nb1r1K/1pN1PRR1/bn1kB1NQ/Bb1q4 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Ke7 Kg3 Ke6 h4 Kf5 d4 Ke4 a4 f5 e3 b5 d5 c5 a5 g5 h5 f4+ Kg2 b3 a6 b2 a7 f3+ Kg3 f2 d6 b4 h6 c3 h7 c2 Be2 f1B Nf3 c4 Ra5 c3 Ra2 Qb6 Bb5 Bd3 Rh4 Be6 Ng1 Nf6 Ra3 Nbd7 Nf3 Bg7 Ra1 Nh5+ Kh2 Ba2 e6 b3 Qe1 Raf8 a8N Bd4 Ne5 Rf6 Nf7 Rf8 Na3 b1B Bb2 c1N h8B c2 Rh3 g3+ Kg2 g4 Qh1 Rf5 Nh6 R8f6 Qh2 Nf8 d7 Rc5 Nc7 Rcf5 Kg1 g2 Bg7 Qb8 Rf3 Qb6 Kf2 g1N Ng8 g3+ Ke1 g2 Kf2 Nce2 Bc4 c1R Bh6 Nc3 Nc2 Na4 Ne1 Rc3 Bb5 Rc6 Bg5 Bdc2 Bc3 Nb2 Be2 Bd3 Nd5 Bdc2 Bf4 Bd3 Rg3 Nf3 Bg5 Ne5+ Rf3 Bbc2 Rd1 Bcb1 Rd2 Nec4 Rd1 Ng7 Kg3 g1Q+ Ng2 Nh5+ Kh4 Qh1 Rdf1 Qg1 R1f2 Qd1 Rg3 Bdc2 Bg4 Kd3 Rff3 Na4 Ba1 Nab2 Nc3 Kd2 Ne2 Ra5 Nc3 Bh7 Rf5 Re5 Be2 Rd5 Rf2 Rdf5 Rff3 Rf4+
n5q1/q1kP1r1b/QpN4b/1qNK4/1BqP2r1/1N1n1P1R/3n1Rr1/RB3r2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 e5 g4 c5 d4 h5 a4 b6 g5 h3 f3 b3 a5 c4 d6 b2 a6 c3 g6 h4 g7 h2 a7 c2 Bd2 c1Q Qc2 h3 Bc4 Na6 Nc3 b1Q Ra5 Qb5 Qb3 Nc7 Ra4 Rh4 Rb4 Nf6 g8N Rg4 Qb1 Bh6+ Ke2 e3 Kd3 e2 Nd1 e1R Qc2 e4+ Kc3 e3 Ne7 e2 Nb2 Rf1 Ba2 e1N Na4 Nd3 Rb2 Qg8 Ne2 Rfg1 Nc6 R1g2 Bb1 Rb8 a8R Rb7 Rf1 h1R Rf2 h2 Ra6 Qf1 Nc1 Na8 Nb3 Rhg1 Qd1 h1Q Qe2 Qhh5 Ra2 Qhf7 Ra7 Rc7 Ra1 Ba6 Rb7 Kc8 Nac5 Ne4+ Kc2 Qe7 Bb4 Nd2 Kc3 Qeg7 Ra7 Rf7 Re7 Q7h7 Re5 Bb7 Rh5 Qhg7 Rh3 Q7h7 Nd8 Be4 Nc6 Qhg7 Ra2 Bh7 Ra1 Q7h8 d7+ Kc7 Qe6 Qe5 Qc4 Qa4 Qb5 Qa7 Qa6 Qfe2 Nb7 Rf1 N7c5 Ne4+ Kc4 Qeg5 Qa2 Qc1+ Kd5 Nd2 Qa6 Qc2 Nc1 Qa4 N1b3 Qb5 Qa4 Qd1 Qa3 Qc2 Qa6 Qcc4#
5kr1/2QPb2b/PR5K/3qqr1P/N1n2pbq/1r1R1B2/1Bqb1Nn1/3N2B1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 a4 c5 e4 g5 d4 b5 h4 f3 Kg3 c4 d6 c3 a5 f2 e5 c2 h5 b3 e6 b2 a6 b4 e7 b3 d5 Nh6 Bg2 f1R Nh3 Rg8 Ra5 Nc6 Qd2 Ne5 Ra2 Rb8 Ra4 Nc4 Na3 b1Q Rh2 b2 Qf4 Rb3+ Bf3 Qc7 Be3 c1B Rb4 Qc2 Rd2 b1B Rd3 Bd2 d7+ Kf7 e8N Be7 d8B Kf8 Bc5 Qe5 d6 Be6 d7 Qd5 Kg2 g3 Ng7 Ng4 Nf2 Nge3+ Kh3 g2 Qc7 g1Q Rb6 Ng2 Nb5 g4+ Kg3 Qh1 Nc3 Nb2 Na4 Nc4 Nd1 Rf2 Ne8 Qe1 Nf6 Qee4 Kh2 g3+ Kh3 Qee5 Ne4 f4+ Bg4 Re2 Bg1 Re3 Nef2 Rb5 Rd4 Reb3 Rd3 Nge3 Qa7 g2 Bc7 Rc5 Bd6 Rcb5 Ba3 Rc5 Bb2 Bf5 Bh2 g1Q Qc7 Qe1 Bg1 Bh7 Bf3 Ng2 Rg6 Rc6 Kg4 Rf6 Rg7 Bf5+ Kg5 Rf7+ Kh6 Bg4 Rg6 Rf5 Bh2 Qh1 Bg1 Qh4 Rb6 Qcc3 Re3 Rfg5 Qb7 Bh7 Rd3 Qc2 Qc7 Rf5
2r1Q1N1/2PRqpB1/2nBbRNn/6Kn/bn2rrP1/1P2b1bq/2R5/1B2k3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 e4 Kb4 c4 a5 c5 h5+ Kf5 d5+ Ke5 a4 g4 a3 b6 f3 Kf4 f2 c6 h3 c7 a2 b7 h4 e5 h2 e6 h3 e7 d3 e8R d2 Re2 d4 Re5 d3 Re8 Nc6 b8B Bd6+ Re5 Nh6 Qf3 d1N Qe2 d2 Qd3 Ra4 Qe3 Nc3 Bd3 f1R+ Nf3 d1B Nd2 Rf2 Rb1 a1B Ne4 Na2 Rf1 h1N Nf6 h2 Ba7 Ng3 Kg5 h1Q Re7 Qh3 Bd4 Nh5 Nh4 Bg3 Ng6 Bf5 Qe6 Rf8 Qd7 Be6 Bf4 Kb3 Bc3 Re4 Ng8 Nab4 Bd6 Qe8 Qd8 Rf3 Rd7 Qe7+ Bf6 Rf2 Rc1 Re8 Rc5 Rf3 Bc4+ Kc2 Ba2+ Kd2 Bb1 Ba4 b3 Bd4 Rf2+ Ke1 Rcc2 Rd3 Rf4 Rf3 Rf5 Rff4 Qb8 Qf8 Bg7 Be3 Rf6 Qe7 Qd8 Qf8 Qe7 Rc8 Qe8 Qe7
3k2rQ/1prnbn2/1N2n1q1/Bb3q2/K3N1PR/1P2N2B/1R1R3P/2nq1rr1 w - - 0 1 illegal: No proof kernel
Nr2bk2/rBb1qpn1/8/1N1qr1N1/3PQ2B/2R2R1P/rK3P1r/r2Bq1b1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 e3 d5 Bb2 d3 Bc1 d4 Bh3 d2+ Kf1 d3 Kg2 Qd7 Qf1 Nc6 Qd1 Nd4 exd4 Kd8 Kg3 Ke8 Bf1 Qc7+ Kg2 Qd8 a4 g5 c4 b5 a5 e5 c5 g3 Kf3 g2 Ke3 b3 a6 b4 a7 e4 c6 g4 c7 g3 Nc3 b2 Nd5 b1R Ra2 b3 Nc3 b2 Nb5 Nf6 Nf3 g1Q Bg2 Bd7 c8N Qe1+ Qe2 d1Q Nd2 Qb3 Nf1 d2+ Nc3 d1R Nd2 Qe7 Nf3 Rd2 Nb6 Nh5 Ra3 Ng7 Ng5 Ra1 Bf3 Qd5 Nb5 b1R Rc3 g2 h3 Rda2 Rg1 Rb8 a8B Bc6 Rh1 g1B Bb7 Rba8 Rh2 R8a7 Rg2 Rh5 Rg3 Rbb2 Ne6 Re5 Na8 Rbb1 Ng5 Rb3 Kf4 e3 Bg4 Rbb2 Rf3 Rbb1 Qd3 e2 Qe4 Rb4 Ke3 Bd7 Kd3 Bc6 Na3 Rb3 Bbc8 Rb8 Bb7 Bh2 Rg3 Qed7 Ne6 Bd6 Nc4 Bc7 Bg5 Qf1 Na3 Qe7 Bh4 e1R+ Be2 Bd7 Ng5 Kf8 Nb5 Be8 Rf3 Qh1 Bd1 Rg1 Rc5 Rg2 Kc3 Qf1 Rc6 Bg1 Rc4 Rh2 Rc6 R2a6 Kb2 Qe1 Rcc3 R6a2#
1N2KQ2/1Rr1Prqp/1qn4P/4b2B/1n2rr2/5qRP/1NqNB2k/1r2B1q1 w - - 0 1 legal: proof: f4 a5 d4 e5 b4 exf4 Nd2 axb4 Nb1 b6 d5 Ba6 d6 Bd3 h3 Bf5 h4 Bh3 gxh3 cxd6 Nd2 d5 Nb1 d4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 a4 f5+ Kd3 Ke5 Kc4 d5+ Kb5 d3 c4 b3 e4 d2 c5 b2 h5 g4 a5 g3 a6 f3 a7 Kf4 h6 f2 c6 d4 e5 d3 c7 g2 c8B Kg3 e6 f4 e7 f3 Ra5 Nc6 Bg4 Nf6 Nc3 b1Q+ Bb2 Qc2 Na2 Bg7 Bh5 Nd5 Bf7 Ndb4 Ba1 Be5 Qe1 d1Q Bh5 d2 Bc3 Qa1 Ra3 d1Q Be2 Rb8 Qd2 f1R a8N f2 Nf3 g1Q Nc1 Rf8 Qd6 Re1 Nc7 f1R Qf6 Rb7 Nd2 Rf4 Na6 Rf7 Nb8 Rc7 Nd3 Qab2 Ra7 Qh8 Rh2 Qg7 Rb7 Qbb3 Rf2 Qbb1 Rf3+ Kh2 Rg3 Qbb2 Bf1 Ree4 Qf5 Qbb3 Nb2 Qf3 Be2 Nd5+ Ka6 b5 Qc8 b4 Kb5 Na5 Qf8 Nc6 Bd4 Qbe3 Bb6 Qeb3 Bf2 Qbe3 Be1 b3 Qg8 Ndb4 Qf8 Qec5+ Ka4 Qa7+ Kb5 Qaf2 Nbc4 Nd4+ Kb6 Rd7 Kc5 b2 Kb6 b1R Nb2 Rd5 Bc4 Rd6+ Kc7 Rc6+ Kd8 Rc7 Be2 Ndc6+ Ke8 Qb6
Kb4nn/p4R2/1b2bPN1/4R3/nBq1QnR1/1q1N1BP1/Pr1b1n2/1k4bB w - - 0 1 legal: proof: d4 e5 g4 exd4 c4 f5 c5 fxg4 c6 g3 Nf3 g2 Ng1 bxc6 Na3 c5 Nb1 c4 Nf3 g1B Bd2 g5 Bc1 g4 Qd2 g3 Qd3 g2 Qd1 Na6 Na3 Rb8 Nb1 Rb6 Qd2 Rg6 Qd1 Rg3 hxg3 Bh6 Qd2 Bg7 Qd1 Bf8 Kd2 Kf7 e4 Kg6 b4 d5 b5 h5 b6 c5 e5 Kf5 e6 Ke4 b7 d3 Kc3 d2 b8R h4 e7 d4+ Kb2 d3 Kc3 h3 e8B h2 Bb5 Be6 Nd4 Qd5 f4 Nb4 f5 Bd6 f6 Nc6 Na3 Nd8 Ndc2 Nf7 Rc8 Bb8 Qh5 d1Q Bd7 d2 Re8 Qg4 Ne1 d1N+ Kc2 c3 Rb1 c4 Nd3 Bb6 Be2 g1B Qh4 Qb5 Bd2 Nb2 Bc6+ Kd4 Bd5 Na4 Rb4 Rh6 Bd1 Nh8 B1f3 Rh7 Rf8 Rb7 Rf7 Qf4 Rb1 Qe4 Re1 Qg4 Re5 Qb3+ Kc1 c2 Bb4 Qe4 Kd2 Qf4+ Ke2 c3 Nc4 c1B Bc6 c2 Qh7 Bf2 Re1 h1N Rg5 Rc7 Rg4 Bd2 Nce5 Rb7 Ng6 Bg1 Bce4 Nf2 Bh1 Qh6 Kf3 c1N Re3 Ne2 Bd5+ Nf4 Re5 Nd1 Bc6 Kc4 Ke4 Nf2+ Kf3 Qf8 Ne7 Rc7 Qf5 Nd1 Ng6 Qc5 Ke4 Qb5 Bc5 Kc3 Bb4+ Kc2 Bb7 Rc5 Bd5 Nf2+ Kd4 N4h3 Bdf3 Kb1 Qe4 Bf5 Ngf4 Qa6 Ng6 Rc4+ Kd5 Rc2+ Qc4 Bc8 Kc6 Rb2 Qd5 Bf5 Qe4 Qac4+ Kb7 Nf4 Ka8 Be6
2Bbr2r/1NbbNk2/1P2RB2/3n3b/1P2KqqN/1R1R1pQ1/1b3Pb1/q6q w - - 0 1 illegal: No possible last move, all moves rejected
3B1k2/1n2n1R1/4p3/1rb5/q1BnP3/QP1nKN1N/R1qP3R/nB1q1rqn w - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 Bh3 bxa4 Bf1 f5 h3 fxg4 Ra3 g3 Ra1 g2 Ra2 g5 Ra1 g4 Qc2 g3 Qd1 Bg4 hxg4 Bh6 Nc3 Bg7 Nb1 Bf8 f4 a5 e4 c5 Ke2 h5 g5 e6 f5 h4 f6 h3 b3 c3 g6 c4 g7 c2 Na3 h2 Kf3 c3 Bd3 Qd4 Ke2 Nc6 Bb5 Rh5 Bc4 Bc5 Bb5 Ne7 g8B Kf8 f7 Nd8 Bb2 c1N+ Kf3 c2 Bf1 Nd3 Ra2 c1Q Ke2 Nb7 Nc2 a3 Ne1 a4 Nh3 g1Q Nf3 Qc2 Qa1 g2 Qc1 Qdc4 Bf6 Rb8 Bh7 Rf5 Bg6 Qa6 Bh5 Qa8 Rb2 a2 Bh4 a1N Ra2 a3 Qb2 Nc8 Bd8 Ne7 Qc1 Qa4 Bg4 Kg7 f8R Rf6 Rg8+ Kf7 Rg7+ Kf8 Rb2 a2 Bh5 Qcc4 Be8 Nc2 Bb5 a1N Ra2 Qc3 Bc4 Qb2 Nf2 Nd4+ Ke3 Qc2 Qa3 Rf5 Be2 Qgd1 Nh3 Rf7 Rf1 g1Q+ Rf2 Qgf1 Rfg2 h1N Rh2 Qg2 Nh4 Rf1 Nf3 Ndf2 Bed3 Qg1 Bc7 Nd8 Ba5 Rb5 Bc7 Nb7 Bd8 Qb2 Bb1 Qbc2 Rhg2 Nd3+ Rf2 Qg4 Rh2 Qg1+
QnBqK1N1/PRR1BB1r/qP6/r1p1P3/Nbp1r1nn/1k6/R4qb1/3b4 w - - 0 1 illegal: No proof kernel
rR2R1bb/1N2p2N/B4n2/bK2nPr1/1P1r1r1q/1pk1P1Q1/3n3R/2Br1B2 w - - 0 1 illegal: No proof kernel
1b6/Bq1Br2r/1Br2nqp/1k1n3P/5q2/3NPRr1/pNrP2K1/RbRQ4 w - - 0 1 illegal: No possible last move, all moves rejected
1K2r1R1/1n6/2R1q1p1/bk2n2n/n2Q2Rr/p1P1B1q1/P2NP1Bb/N2r1nB1 w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 c5 f3 cxb4 g5 b6 g6 Bb7 Kf2 Be4 fxe4 hxg6 Ke1 g5 Ba3 g4 Bb2 Ke7 Bc1 Ke8 Kd2 f5 Kd3 a5 Kc4 d5+ Kb5 Kd7 h4 a4 c3 a3 h5 f4 h6 d3 h7 d2 e5 g6 Rh4 d4 Bg2 g3 Rh5 d3 Bb7 g2 Bd5 b3 Rh3 b2 Qe1 d1N Qd2 f3 Rh5 f2 Bf3 f1N Qc2 d2 Rf5 Qf6 Qe4 Na6 Qc2 Bb4 Qb3 Nc5 Rf4 Nb7 Qc4 Ba5 Re4 Qe6 Rg4 Re8 Ka6 b5+ Ka7 b4 Qd4+ Kc7 Bc6 b3 Nf3 g1B Ne1 Nf6 Nc2 Nh5 Bh1 Nf2 Bg2 d1N Be3 Bh2 Nd2 Nd3 Rc1 b1Q Na1 N1b2 Rd1 Na4 Bg1 Qd7 e6 b2 e7 Qe6 Be3 Ne5 Bg1 Rhg8 h8B Qd3 Bf6 b1R Bg5 Qg3 B5e3 Rb4 Rb1 Rd8 e8R Rd5 Rd1 Kc6 Kb8 Rh8 Rd8 Re8 Rb1 Rc4 Rb5 Rb4 Rc5+ Kb6 Rc6+ Kb5 Qa7 Rf4 Qd4 Re4 Rg5 Rh4 Rg4 Rc5 Rdc8 Rc4 Rd8 Rb4 Rdc8 Rb1 Rd8 Rd1 Rdc8 Re7 Rg8 Re8+
3Bq2Q/RBR1nN2/r1b1qP1p/1p1q2rk/RP2rK1n/q1q5/P4bN1/7N w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 cxd5 g5 Ba6 gxh4 Bf1 a4 Qb3 axb3 Ke2 Kf7 Ke3 Kg6 g4 e5 d4 c5 f4 b5 d6 h3 d7 h2 g5 h6 d5 b2 d6 c4 f5+ Kh5 g6 c3 g7 c2 f6 Nc6 Bh3 Ra6 Ne2 Nd4 Nd2 b1R Bf1 Qe8 d8N Bd7 Nf3 Ne7 g8Q Bc6 Ne1 Nf3 d7 Nh4 Rg1 h1Q Nf7 Qg2 Qh7 Rg8 d8R Rg5 Ra8 Qh1 Bd2 c1Q Qh8 Qa3+ Bc3 Rd1 Rc1 Rd4 Bh3 Qg2 Bc8 Rc4 Bb7 Qh1 Kd2 e3+ Kd3 Rf4 Ng2 e4+ Kd4 Rfg4 Be1 Rf4 Bg3 Rfg4 Bc7 Rf4 Nc3 e2 Bd8 e3+ Ne4 e1Q Rc3 e2 Ke3 Qa1 Nf2 Q1b2 Rc1 Qc2 Rd3 Qcc3 Ra7 Qd1 Nh1 Re4+ Kf2 Qdb3 Rd7 Qe6 Rc7 Qcb3 Rc3 Qbd5 Re3 Rge5 Kg3 e1Q+ Nf2 Qec3 Nh1 Nc8 Rd3 Bc5 Re3 Ne7 Rf3 Re1 Kf4 Bf2 Rg3 R1e2 Rg7 Rg5 Rh7 Rb6 Ra4 Ra6 Ne5 Qab2 Rd7 Qdd3 Bc8 Qdd5 Ra7 Nef5 Bb7 Qba3 Rc7 Ne7 Nf7 Re4#
1b5N/1kr2r2/n2Pn2N/4B2B/P2R1qPn/1p2q3/pRbn1Q2/2KR1Brn w - - 0 1 illegal: No proof kernel
2rrR1Rb/3b4/K1P3B1/1Q1p1N2/np2n2q/qrn1B3/1P1R1B1P/k2n1N1n w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 a4 c5 d4 cxd4 a5 Qxa5+ Qd2 Qa3 Qd1 Qa2 Ke2 Kf7 Kd3 g5 f4 a5 c4 e5 c5 b5 f6 Ke6 c6 Kd5 f5 b4 f7 e4+ Kd2 a4 f6 g3 Ne2 Kc4 Bh3 d5 Bf1 a3 Bg2 e3+ Kc2 g4 Rf1 Bg7 f8B Na6 f7 Nc5 Rh1 Nf6 Be7 Bd7 f8R Rc8 Qf1 d3+ Kd1 Kb3 Qg1 d2 Be4 g2 Qf1 g1N Nf4 g3 Qe2 g2 Qf1 Ne2 Rg1 Ng3 Qb5 Nh1 Ne6 Rg8 Ke2 Bh8 Ng7 Na4 Kd3 e2 Bc5 e1Q Kd4 Qh4 Re1 g1N Ba7 Qh5 Bg6 Qh4+ Re4 Kc2 Nf5 Qb3 Rd8 a2 Bc5 d1N Nd2 Ndf2 Rb1 a1R Nf1 Ra3 Bg5 Qa2 Rd1 Rb3 Rd2+ Kb1 Bf4 Qa3 Bg3 Nd1 Bf2 Ka2 Ba7 Nb6 Kc5 Ka1 Re7 Ne2 Rg7 Re8 Rg8 Na8 Bb6 Nec3 Ba7 Re3 Rdf8 Ree8 Bb6 Red8 Re8 Nc7 Ba7 Na6+ Kb6 Nfe4 Kb7 Nac5+ Kb6 N5a4+ Ka6 Rc7 Bae3 Rcc8
r2B2n1/3BrbqP/1b2Np1r/2P2R2/1r2NKb1/Q1Nk1BPR/pq6/r1n5 w - - 0 1 illegal: No proof kernel
1B2r1qq/3BrNp1/b1r2BnN/r1p5/1nb1RR2/nR4PK/2P3QP/3k3r w - - 0 1 legal: proof: e4 h5 b4 d5 b5 dxe4 b6 axb6 Bb2 b5 Bc1 b4 g3 e6 Ba3 h4 Bb2 Bd6 Bc1 hxg3 Nh3 g2 Ng1 Bg3 fxg3 Qd5 Qe2 Qd3 Qd1 Qd8 Kf2 Kd7 d4 Kd6 a4 Kd5 a5 b5 a6 c5 a7 f5 Ra3 e3+ Kf3 f4 Kg4 Ke4 d5 e2 d6 e1Q d7 f3 Ra2 f2 Ra1 e5 Ra2 b3 Qd6 b4 Be3 b2 Bf4 b3 Qd1 Nc6 Ra5 Nb4 Ra2 Ne7 Qd6 Re8 Kh3 Ba6 Qe6 Ng6 Ne2 Kf3 Ra4 g1R Nbc3 b1R Qc6+ e4 Bb8 b2 Nb5 Re7 Qb7 Qg8 d8B Rd1 Nd6 b1N Qc6 Na3 Nf7 Rd6 Nd4+ Ke3 Bb5 Kd2 Qb7 e3 Nf5 f1B+ Qg2+ e2 N5h6 Kd1 Bd7 Re8 Bf6 Rc6 Ra5 Qd2 Rb5 e1R Rb7 Bfc4 Rb6 Nd5 Rb3 Rgf1 Rg1 R1e7 Rh1 Rfe1 Rf1 Nb4 Rf4 Rh1 Bbe5 Rab8 a8R Rb5 Bb8 Ra5 Ra7 Qd3 Rb7 Qd5 Re3 Qh8 Ree4 Nd3 Rb3 Nb4 Ng5 Qdg8 Nf7 Bb7 Rf5 Bc8 Rff4 B8a6
4Bbrk/1Q1n1qp1/1R1p3q/3B3r/1nP3P1/nN1PnRnN/1N1K3q/4R1b1 w - - 0 1 legal: proof: b4 c5 a4 cxb4 f4 e5 Nc3 exf4 Nb5 b3 Na3 b5 Nb1 b4 Bb2 Ba6 Bf6 Bb5 axb5 h5 g4 h4 Bd4 Qc7 Bf2 Qd8 Bg3 hxg3 c4 a5 e4 f5 h4 Kf7 e5 b2 h5 a4 h6 f3 d3 g2 b6 d6 h7 b3 b7 f4 Qd2 f2+ Ke2 f3+ Kd1 a3 Qe2 a2 Qe1 Qe8 Rh2 Nf6 Qe4 Na6 b8N Nb4 Rh6 Nd7 Nc3 b1Q+ Kd2 b2 Nh3 g1B Bg2 f1Q Nd1 f2 Qb7 Qe6 Na6 Qc2+ Ke3 b1N Bd5 Rb8 Nc5 Na3 Nb3 Rd8 Rc1 a1N Nb2 Rg8 h8R Qce2+ Kf4 N1c2 Re1 Ne3 Rh5 Kg6 Rf5 Ra8 Ke4 Ra5 Rf3 Qf6 e6 Qc2 Bc6 Rh5 e7 Qf7 e8B Qfe2 Qb6 f1N Qb7 Qh2 Bd5 Ng3+ Kd4 Qce2 Kc3 Qeg2 Rf2 Qgh1 Kd2 Rf5 Rh5 Re5 Rf5 Kh7 Rf3 Kh8 Rfe2 Rf5 Rb1 Ng2 Ree1 Ne3+ Nf2 Qh6 Nh3 Rh5 Ra1 Nac2 Ra6 Na3 Rb6 Qh2+
rn1B3r/2N2Npn/RPQ2B2/q1b1q2p/b7/R3PNPb/1b1q1B1K/3k2b1 w - - 0 1 illegal: No possible last move, all moves rejected
1kbr4/1B2RP1r/5pp1/1B1Rb1Bn/2NnPqrP/1bK3N1/2q1Qr2/4r1N1 w - - 0 1 illegal: No proof kernel
K2n1q1b/1R1rPq1b/NR1r4/N2N1b2/k2r1P2/n1B2B1p/1PpBQr2/7r w - - 0 1 illegal: No proof kernel
Kn2B1nk/1qqBPr2/n4rR1/2r1NQ2/3p1rN1/1N1P1rb1/R1pRP3/1b6 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 Ba3 bxc4 b5 e5 Bb4 axb4 fxe5 Ra7 Na3 Ra4 Nb1 Ra8 Kf2 f5 Kf3 Kf7 a4 Kg7 g4 c5 a5 d5 b6 h5 g5 f4 g6 d4 Ke4 b3 b7 f3 e6 h3 a6 c3 a7 c2 Na3 c1N Ke5 b2 Ke4 b1R Nc2 c4 Ne3 f2 Qa4 h2 Qd1 c3 Bh3 f1R Nf3 h4 Ra2 Qc7 Kd5 Rb6 Ng4 Rh7 Qc2 Nb3 Qf5 Bd6 e7 Kh8 Nfe5 Rf3 Rd1 h1R d3 c2 Rd2 Nc5 Nc4 Rhb1 Na5 Nca6 Nb3 Rh1 Ra3 Bg3 Ra2 Nd7 b8N Rf7 Nc6 Rhf1 Nce5 Rbf6 Rb2 Rb8 a8B Rb4 Bb7 Ndb8 Ra2 Rc4 Bc6 Rf4 Bd7 R1f3 Bg2 h3 Be8 h2 Bh3 Nh6 g7+ Kg8 Qg6 h1Q Qg5 Kh7 g8R Qb1 Rg7+ Kh8 Qf5 Ng8 Rg6 Qa7 Bg2 Be6+ Kd6 Rc5 Bd7 Rf1 Bgc6 R1f3 Be8 Qb2 Ba4 Qb7 Bad7 Qc3 Na5 Qe4 Ra1 Rb5 Ra3 Nc5 Kc7 Ba2 Ra4 Bb1 Nb3 Qa5+ Kc8 Nca6 Ra2 Rd5 Kb7 Rc5+ Bc6 Qd5 Ka8 Qd7 Ba4 Qb6 Bb5 Qdc7 Bbd7 Qbb7#
2nBQqr1/2R1P2N/nq2bbr1/R5R1/P2k2q1/1KnB2Pq/3Np1pB/2q5 w - - 0 1 illegal: No possible last move
1QR2N1R/4p1b1/B2Rrb2/Knp2B2/1bN2qP1/2nrP3/P1r1qk2/2B1r1r1 w - - 0 1 illegal: No proof kernel
2bK2bn/1rrP2r1/k1qRp2b/pr1Nq1n1/6P1/3r1R1N/1PNRQB2/5B2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 a5 Kf4 h5 Ke5 c5 f4 Kc7 g4 Kb7 d4 e3 b6 e2 d5 e1R+ Be3 c3 f5 h3 d6 h2 f6 c4 d7 h4 Ke6 c2 f7 c1Q Bg2+ Nc6 Qc2 h3 Qc3 Rd1 Bf2 Ka6 b7 Bh6 f8R Ra7 Bc5 Rd3 Ba3 Qc7 Qd4 c3 Rf4 c2 Qd5 Ne5 Qa2 Nf3 Bc5 Rh7 Bf1 Rg7 Bf2 Qb8 Nc3 Ng5+ Kf5 Qd6 Nd5 Qe1 Qa3 c1R Rf3 Rc7 Rd1 Qc6 Rd2 Qe3 Qc3 Qec5 Qf6 e6+ Ke5 Ne7 Qf8 Ng6+ Kf6 Nh8 b8N+ Kb5 Qd6 Rab7 Na6 Qe3 Nab4 Qe4 Nc2 Ka6 Ne2 Qe3 Rg1 h1B Qe5 h2 Nef4 Bg2 Qe4 h1R Nh3 Qe1 Qe2 Rh2 Rf4 Be4 Rf3 Bh7 Rg2 Bg8 Rg1 Bf7 Ke7 Bg8+ Kd8 Rh1 Qd1 Qe5 Qe2 Rb5 Rgg3 Rdb3 Rfd3 Rcb7 Rd4 Rd3 Rf3 Rg1 Nf6 Rg3 Rd6 Rc7 Nd5 Rdb3 Rf5 Rgd3 Rf8 Rbb7 Rf3 R3b5
1R4B1/n1p2Q2/1RPP1b1p/NBq2rq1/1kB5/2n2bNK/2rNP3/1b1bn2b w - - 0 1 legal: proof: f4 a5 h4 e5 b4 exf4 c4 g5 hxg5 d6 c5 Nd7 c6 Nb8 Bb2 axb4 Bd4 Qf6 Ba7 Qd8 Bc5 dxc5 Kf2 Ke7 d4 Kd6 a4 b5 g4 f5 Kg2 c4 d5 Kc5 g6 b3 d6 f3+ Kh3 f4 g7 b4 a5 f2 a6 b2 a7 h6 Nd2 b1N Qa4 c3 Rh2 b3 Bg2 f1B Ra3 c2 Ndf3 c1Q Qe4 b2 Qe5+ Kb4 Qh5 Nc3 Ng5 b1B Nh7 f3 Nf6 f2 Nf3 Na6 Qf7 Be7 Rh1 Bcf5 Nd2 Nc5 Nh5 Bfc2 g5 Nd3 g6 Bd1 Ng3 Ne1 Ra6 Bf6 Rg1 Ne7 g8B Rh7 g7 Nc8 Rh1 Rb8 a8N Na7 Nb6 Rh8 Bh7 Rf8 Nbc4 Rb5 g8B Rc5 Bd3 Qe7 Qh7 Qg7 Na5 Qg5 Bb5 Qa3 Kh2 Rf7 Bh3 Bg2 Rb6 f1B Be6 Bf3 Bec4 B1g2 Rf1 Bh1 Kh3 Be5 Rf2 Rf5 Qf7 Bf6 Rf1 Bd5 Rf3 Bde4 Re3 Bef3 Re8 Qc1 Nde4 Qce3 Reb8 Qd4 Bd5 Rc4 Nd2 Qc5 Be6 Na2 Bd5 Rc2 Bdc4 Nc3
2nn1q2/1Np1PB2/1R2P2B/RQr1r3/nP6/1R1p3b/Nb3KB1/nn1k2bq w - - 0 1 illegal: No proof kernel
3q1R2/pN2B2P/rnB2nK1/Nbn1Pn1P/N2p1B1q/Q2q1R2/1bn5/1k4r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 exf4 a4 bxa4 Nc3 c5 Nb1 cxd4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 Kc4 b4 g5 e4+ d3 h4 d5+ Ke5 f5 h6 g4 h5 g3 b5 g2 c3 d4 b6 a3 b7 a2 Rh4 f3 Qc2 f2 Qb2 f4 Qa3 f3 Ne2 g1Q Qe7 Kb3 c4 Kc2 c5 d2 c6 d1Q c7 Nd7+ Kf5 Ngf6 b8B Qh1 e5 Nb6+ Kg6 Ba6 c8N Bb5 Bh3 f1N Bd6 f2 Rf4 Ng3 Nbc3 f1N Bd7 Nge4 Na4 Qd3 Bc6 Qh4 Rf3 Nfg3 Bf4 Nf5 Nc1 Nc5 Nb3 Rb8 Rh1 a1N h7 Bh6 Rh2+ Kb1 Rhf2 Nc2 Na5 Re8 Qf8 Re6 Be7 Rb7 Nd6 Rd7 Bg3 Bc1 Ndb7 Bb2 Bf4 Nc8 Be4 Ra6 Bc6 Nb6 Qf7 Qc7 Qb3 Qd8 Qa3 Rc7 Bf8 Rf7 Bd6 Rf8 Be7 Rg8+ Kf7 Ba1 Bh2 Nfe4 Rf4 Bb2 R2f3 Nfe3 Rf6 Rg1 Bf4 Re1 Kg6 Nf5 Rf7 Nf6 Rf8 Rg1+
1r1nNR1Q/5BR1/q3bNr1/r1r1b1k1/1Prn2P1/4RrP1/rp1p4/1K1BB3 w - - 0 1 illegal: No proof kernel
1NR3B1/n1r2KBq/3R1BN1/Ppb1bP2/rq3P1r/pk3b1Q/n1q2q1N/8 w - - 0 1 illegal: No proof kernel
k1N2n2/2K5/2N5/p2Bb1n1/1qBrpb2/2P2nPR/Pqq2B1r/2q1QRrN w - - 0 1 illegal: No possible last move, all moves rejected
1nr2N1r/2b1r1Rq/2Rn1Pqn/k5p1/p3B3/1PPNR3/BqrQ2b1/2B4K w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 a4 bxa4 g4 hxg4 Bh3 f5 Bf1 fxe4 f4 d5 Kf2 Kd7 Kg2 Kc6 h4 a5 c3 e5 h5 d4 f5 g3 h6 d3 f6 Kb5 b3 e3 h7 a3 c6 a2 c7 e4 Ba3 a4 Be2 Nh6 Bb4 Bd6 Bc5 Bb7 c8B Qe7 Nf3 Bc7 Ng5 Ka5 Rh3 d2 Bf3 e2 Bf5 e1R Be3 Re2+ Kh1 g6 Bf4 e3 Na3 Rf2 Qc1 d1N B3e4 e2 Qd2 Nb2 Nc2 Nc4 Ne6 Nd6 Rg1 a1Q Nb4 e1R Nd3 Qb2 Be3 Rc8 h8R Qh7 Nf8 Rfe2 Rg8 Rc1 Rg7 Rc2 Re1 g5 Qd1 Qg6 Bc1 Re3 Qd2 Qh7 Bg2 Re7 Re6 Bd5 Bge4 g2+ Kh2 Qg6 Re3 g1Q+ Kh3 Qg4+ Kh2 Q4h5+ Kg2 Nb7 Rc6 Nd6 Kg1 Qh7 Kg2 Qe8 Kh1 Qeg6 Bg2 Rd8 Nd7 Rh8 Nf2 Na6 Nf8 Rc8 Bf3 Nb8 Bg2 Qa2 Bd3 Rb2 Bb1 Be4 Nd3 Rc2 Bf3 Qb2 Ba2 Bf5 Bd5 Bh3 Be4 Bg2+
3n1rr1/Kb1N3B/5p2/1bBPb1rR/p5B1/N1R1r1nP/N2kP1q1/1Q2q2n w - - 0 1 illegal: No proof kernel
2rrNR2/3q3n/NQ2P3/1Bn3rP/1BpRq3/1qb1bbKb/2kpN1P1/6B1 w - - 0 1 illegal: No proof kernel
N1KR1B1k/7n/1q2PbBP/2b2R1q/8/1R1b1qp1/1pnPQ1nr/B3bNr1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 g5 e4 f5 a4 Kf7 h4 Kg7 h5 c5 a5 b5 e5 f3 Kg3 c4 d6 c3 a6 b3 e6 f4+ Kf2 c2 a7 b2 d7 g3+ Ke1 g4 Ne2 b4 Ra5 b3 Ra6 g2 Kf2 g1B+ Ke1 g3 Na3 b1Q Nc3 f2+ Ke2 f3+ Ke3 Qa5 Ke4 Nc6 d8B Nb4 Nc4 Bc5 Ke5 Nf6 Nb6 Nh7 Bd3 f1Q Be7 f2 Bb2 c1B Ncd5 Nc2 Qe2 Bd7 Rh3 Bb5 Bg6 Bd3 Ne3 Qg2 Bc3 f1N Ba1 Qf3 Bf8+ Kg8 Rh4 Bf2 Rf4 Be1 Rf5 Qb5 Ra4 Bb2+ Rd4 Rc8 a8R Bc3 Ra2 b2 Ra5 Qd1 Na8 Qb6 Ra3 Rc7 Rb3 Rf7 Ng4 Nfe3 Nh2 Ng2 Nf1 Rf6 Rg5 Rf4 Rf5 Rh4 Qe3 Rh1 Qe2 Ba5 Rd8 Rg1 Qe4 Bc3+ Kd5 Qa5 Kc6 Qb6+ Kd7 Bf6 Qe2 Ng5 Nc7 Rh7+ Kc8 Kh8 Na8 Rh6 Bf7 Nh7 Be8 Rg6 Bf7 Rg4 h6 Rh4 Bh5 Rh2 Bg6 Qh5 Qe5 Qdg4 Qe2 Qf3
1Bq1nk2/5N2/2RRpr1K/pRq1P3/NQ2Nb1b/B3qbP1/1P1n4/brn5 w - - 0 1 illegal: No possible last move
2q2Knr/1k1r3N/2rP1npR/1b2N1bP/p3r3/3QqPN1/BB6/n3b1RB w - - 0 1 illegal: No proof kernel
2k1Br1R/bb1qRNN1/R1pBp1q1/nPK5/5BQb/n1PP4/q5r1/3br3 w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 h5 Kd4 a5 g4 f5 b4 f4 g5 e6 b6 f2 b7 a4 d3 a3 g6 h3 g7 h4 b5 f3 Bf4 a2 Qe1 h2 Bg5 h3 Qe4 Be7 Bh4 Nc6+ Kc4 Na5+ Kd4 c6 b8B Bb7 Ne2 Nf6 g8R Ng4 Ng1 Ne3 Ba7 Nec4 Rg5 Na3 Nc3 Rf8 Bg3 Kc8+ Bd6 Qd7 Rg7 Bh4 Be2 f1Q Qg6 f2 Bh5 Qe2 Re7 f1Q Nd5 Qf7 Qg4 Qg6 Bab8 Rf2 Nf6 Rg2 Kc5 Qd2 Rc1 a1B Nf3 Be5 c3 Qa2 Ne8 Bf4 Ng7 Bfg3 Rhf1 h1R Ra1 h2 Ne5 Rhg1 Rf6 h1B Nf7 Re1 Rf4 Rf2 Re4 Bf3 Bf4 Rg2 Bbd6 Bd1 Re2 Rgg1 Rh2 Rg2 Nh6 Qf6 Be8 Qg6 Nf7 Bf2+ Kb4 Ba7 Rh1 Bb8 Kc5 Bf6 Rh5 Bh4 Rh8 Nb1 Nf5 Qc4+ Kb6 Nb3 Ne3 Raa2 Nf5 Nc5 N7h6 Nb3 Bc1 Raf2 Ra6 Na3 Ng7 Rf8 Bcf4 Na5 Nf7 Qa2 Kc5 Ba7+
2K1b2k/3R1nrp/bPR4B/1rPBnb1q/P2Brq2/qN2N1b1/7p/1Q2N3 w - - 0 1 illegal: No possible last move
kr2B1R1/1n1BKNP1/1pq3N1/2rR4/n4Q2/1qP1q1rR/1P1b2pb/Bqb5 w - - 0 1 illegal: Other
1r4bN/Nk3qPP/q1p2Rrn/R6B/1BN1b2B/Q1p1K3/1nP1n3/2b3nr w - - 0 1 illegal: No possible last move, all moves rejected
2qNBb1n/2Q3p1/2rp2b1/1r1B1N1P/rbR1P1nq/6Pb/K3R2R/1B1n2k1 w - - 0 1 illegal: No extended proof kernel
1R5q/3n1Pbk/q4nr1/1bB2p2/P1b2BQ1/R2R1r1P/1KNr1pN1/2q1qB2 w - - 0 1 illegal: No proof kernel
Bn2n1Nn/3r1Pr1/K1Q3b1/2pqR3/2kBr3/1Rpbqr2/3bPP2/BN4R1 w - - 0 1 illegal: No possible last move
3Rb1bB/1Nbn1P2/p3r3/r4P1p/PK1N3r/R1Qr1Nkq/q2B4/3Bqn2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 b5 d3 bxc4 Be3 cxd3 Bh6 Nc6 Bc1 Nb8 Kd2 Kf7 Kc3 Kf6 a4 Ke5 b4 d5 g4 c5 f6 c4 b5 d2 g5 Kf4 g6 e5 f7 h3 f3 d4+ Kb2 e4 b6 c3+ Kb3 h2 b7 c2 Nc3 e3 Rb1 d3 Ra1 e2 Nb1 e1Q Nc3 Bd6 Qe2 Be6+ Nd5+ Kg3 f4 d1R Qe5 d2 Nf3 Nh6 Be2 Nd7 b8B Ng4 Ra3 Bc7 Qc3 Qg8 Kb4 Ne3 Nf6 Nf1 Ne8 a6 Bb2 c1R Nd6 h6 Ba7 Re8 Be3 Bc4 Nb7 Re6 Bd4 Rh7 Bh8 Rc2 Bc1 Bd5 Qe5 Rc5 Qc3 Ra5 Rg1+ Kh3 Rg5 h1Q Re5 Bc6 Rd5 Kg3 Rd4 Qh3 Rd5 Nf6 Rd3 Be8 Rd8 Nd7 g7 Qf8+ Nc5 Qd6 g8N Qd5 Ne7 Qa2 Bb5 h5 Be2 Rg7 Nc6 Rg4 Ncd4 Rh4 Bb2 Rb1 Nb7 d1B Nb3 Ra1 Nbd4 Bc2 Bc1 Bh7 f5 Bg8 Bd2 Rc1 Bd1 Rc2 Qb2 Rc3 Qc1 Rce3 Qc3 Rd3
nK3qb1/5P1p/P3R1R1/4R2B/N1pr1b1r/P1Q2n1k/2rBNn2/q3bn1N w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 dxc4 Na3 g5 Nb1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 c5 d4 b5 g4 h3 g5 b4 a6 h2 f3 b3 a3 c3 g6 c2 g7 b2 Nd2 b1N Bd3 e3 Qf1 e2 Ra2 e1B Be4 Nh6 g8R Nd7 Qd3 Nb6 Ne2 Ng4 Qc3 Nf2 Nf1 Nd2 Nfg3 Nf1 Bd2 c1Q Bg6 Qa1 Bh5 Bh6+ Rg5 c4 Rg1 Rb8 Nh1 Na8 Rb2 Kf6 Rb6+ Be6 Rg3 Qf8 Rg4 Bg7 Re5 Bh6+ Rgg5 Rg8 d5 Rd8 d6 Rg7 Rc6 Bg8 Rb6 e6 Rc6 Rb7 d7 Rb2 Rb6 Rc2 Rd6 Re8 d8N Re7 Nb7 Rd7 Nc5 Rd8 Nhg3 h1R Na4 Rh3 Nh1 Rh4+ Bg4 Nd3+ Ke4 Nf2+ Kd4 Rd7 Kc5 Rd8 Rg7 Bf4 Kc6 Rd7 Bh5 Rd8 Re4+ Kf5 Kb7 e5 Re6 Rd4 Re3 e4 Rgg6 Bg5 f4 Bh6 Re8 Bg5 Kb8 Bh6 Reg3 e3 Re6 Bg5 Bf7 Bh6 Rgg6 Bg5 Re5+ Kg4 f5 Kh3 f6 Bf4 Rg1 Qe7 Bh5 Qg7 Rg6 Qf8 Neg3 e2 f7 Qh6 Re7 Qf8+ Ka7 Ne4 Qe3 Bf2 Qc3 e1N Ne2+ Nf3 R7e6 Be1 Kb7 Nf2 Ka7 Qe7+ Kb8 Qf8+
knRrnN1B/bRr2pqn/P3B3/1Q1Nq3/1Pnq2bb/1P5B/3p2N1/2K5 w - - 0 1 illegal: No possible last move, all moves rejected
2b5/qB2PqBq/PQp1r3/r3B1b1/1nk1PKN1/p2N2R1/1RN1b3/2n2n1b w - - 0 1 illegal: No proof kernel
nr2q3/1nN1P2r/pqb1P3/B2P1b1n/4qQbB/N1RNp2B/RK2k2b/8 w - - 0 1 illegal: No proof kernel
7N/r2bp1Qb/k1r2n2/2P1Bp1q/bq2rr2/RB6/N1KPnP1R/1B2R2n w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 cxb6 Bc4 b5 Bf1 b4 a3 b5 Ne2 b3 Ng3 b4 Ke2 b2 Ke1 b3 Ne2 Bg7 Ng1 Be5 Qg4 Bc3 Qd1 Bb4 axb4 Qa5 Ke2 Qc7 Ke1 Qd8 g4 Kd7 c4 Kc6 b5+ Kb7 g5 h5 b6 a5 g6 e3 c5 h3 g7 a4 Nf3 h4 Rg1 h2 Rg3 h1B Ra3 h3 Be2 h2 Nc3 b1Q Bb5 b2 Nd5 Nf6 g8B Ra6 Ra1 a3 Qc2 a2 Kd1 Bd7 Be2 Rh4 Qc4 Rf4 Bd3 Qe8 Qd4 Nc6 Ne5 Ra7 Bc2 Ka6 b7 Be4 b8R h1N Rh3 Bh7 Rh2 Rc7 Qc3 Nd4 Rb3 Rc6 Ng6 Ne2 Bf5 Qe4 Nh8 b1B Bb2 Qb4 Qe5 Bd3 Nc3 Bb5 Kc2 Ba4 Re1 a1R Qd4 Qf8 Be4 Qh6 Na2 Qh5 Bc3 Ng4 Qe5 f5 Qg7 Nf6 Bf7 Neg3 Be5 e2 Rd1 e1R Rb1 Re3 Re1 Ne2 Bg8 Bb5 Ra3+ Ba4+ Bb3 Rc1+ Kb2 Rcc3 Bc2 Ree4 Bb1 Rd3 Kc2 Rdd6 Ba1 Rc7 Bb2 Rdc6 Be5 Ra7
3NBqB1/3P2Np/3rpr1P/bP2K1nR/q4nn1/R2bb3/4k3/Q1r2NRr w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f6 f4 f5 b3 fxe4 Bb2 g5 f5 Nc6 Be5 Nb8 Bf4 gxf4 Ke2 Kd7 h4 Kd6 d4 Kd5 g4 c5 f6 a5 b4 c3 f7 Kc4 b6 e3 Kf3+ e2 Ke4 c2 g5 c1N b7 a4 g6 f3 d5 e6 h5 f2 h6 a3 d6 a2 g7 Nd7 b8R Ra6 Rh5 Ne5 d7 Rd6 Rh4 Ncd3 Rh3 e1B Qa4 Nf3 Rh5 Ba6 Ne2 Nf4 Ra8 Ng5+ Ke5 Kd3 Nd2 Nf6 g8B c4 Nd4+ Ke3 Rc1 a1Q Bd3 f1R Bg6 c3 Nf5+ Ke2 Ng7 Bd3 b5 Rh1 Nf1 c2+ Qd4 Qaa5 Qa1 Qa4 Ra6 Be7 f8N Ba5 Be8 Qa8 Rb1 c1R Ng6 Bed8 Ra7 Bdb6 Ne7 Be3 Nc6 Qb8 Nd8 Qc8 Bgf7 Rf8 Bg8 Nfe4 Rc7 Rf6 Rc3 Nf2 Ra3 Rcc6 Rd1 Rc1 Nh2 Qb8 Rg1 Qa8 Nb7 Qd8 Nf1 Qe7 Nd8 Qf7 Qd4 Qf8 Qa1 Ng4+
6R1/B2Pp3/nQpr3N/b1P1K2N/1rqR1n1N/rB6/nP1qB3/1k1q2nb w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 h5 g4 a5 b6 f5 g5 a4 b7 h3 g6 a3 g7 a2 c3 f2 Bb5 f1R+ Nf3 h2 Bd7 Kc4 d5 h4 d6 h3 Bd2 Kd3 c4 Rh4+ Ke5 f4 c5 Ra3 Qc1 Rd1 Bb4 Na6 b8N Bb7 Bd2 Nf6 g8B Nd5 Ng5 f3 Be1 f2 Rg1 h1Q Nf7 f1Q Qf4 Kc2 Bb4 h2 Qd4 Bh6 Bb5 Bd2 Nh6 Qhf3 Rg3 h1N Nd7 Nf2 Ba5 Nh3 Qb4 Ng1 Nf6 Rc4 Rg4 Nf4 Nh5 Qb3 Rg5 Bh1 Bb6 c6 Ba7 Qa5 d7 Be1 Nf6 Rd6 Nd2 Rcd4 Rb1 a1N Rd1 Qf7 Rg2 Nb3 Nh5 Nc1 Nf3+ Kb1 Be2 Rc4 Rd4 Na2 Rg6 Bd2 Qb3 Qd1 Nh4 Qc3 Rg4 Qcc2 Rg5 Ba5 Qb6 Rb4 Rg3 Qfb3 Be6 Qdd2 Rg8 Qcd1 Bf7 Qbc2 Bb3 Qc4
4nn2/2Np2q1/1q2rN1P/3Pq1R1/nR2Q1RB/2PBb1r1/p1r2k1b/1KB1q3 w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 c5 Ba3 cxb4 Bc1 h5 a4 hxg4 Nc3 b5 Bb2 b3 Nb1 b4 Ba3 Ba6 Bc1 Bb5 axb5 Rh7 Ra5 Rh3 Ra1 Rh8 e4 Ke7 h4 Kd6 d4 g5 Kd2 a5 h5 f5 b6 g3 d5 Kc5 e5 Kd4 e6 a4 e7 g2 e8R f3 h6 f2 b7 b2 Bb5 f1Q Re1 f4 Be2 b3 Ra3 g4 Nh3 g1B Ra1 g3 Bh5 f3 Ng5 f2 Ne4 a3 Nd6 g2 Re6 Qg5+ Re3 Qg7 Nf7 Nc6 b8B Nd8 Ng5 Bc5 Rhh3 Ne6 Rh1 Nf8 Nh3 Ra6 Bf4 Bh2 Qe1 g1R Ng5 Rg3 Nc3 b1Q Rg1 b2 Re5 Re6 Nce4 Nf6 Bg6 Ne8 Nf6 Qg2 Bd3 f1Q+ Qe2 Qe4 Rf5 Rg8 Bd6 Qf2 Be7 Qe5 Ra2 Qa1 Kd1 b1N Rb2 Nc3+ Kd2 Rf3 Rg4+ Rf4 Bd8 Na4 Rb7 Qb2 Kd1 Qb6 Qe4+ Kc3 Be7 Be3 Bd8 Qg3 Rb8 Rf2 Rb7 Re7 Ne6 Qh4 Nc7 Re6 Nh5 Qhe7 Nf6 Rg2 Rfg5 Qeb4 Qh7 Qbe4 Qg6 Kd4 c3+ Kc5 Rf5 Qa6 Rg3 Qh4 Be4 Qh7 Rb4 Qb6 Ng4 Q7e7 Qh7 Rgg6 Rh5 Q7g7 Bg5 Rf2 Nf6 Re2 Rg2 Qhg3 Bh4 Rg5 Bd2 Qe1+ Kc2 Rg4 Rg5 Rf2 Rb5+ Kc4 Rg1 Rgg2 Qf5 Rf3 Rb2 Rgf2 R1g4 Rg3 Qf3 Qe2 Kb1 Qe1+ Bc1 Rfg2 Qf4 Rc2 Bg2+ Kd3 Rb4 Ke2 Qe4 Kf2 Bf1 Bd4 Ba6 Be3 Bd3 a2+
2N4B/K1p5/NRBN3k/1PnbQ2B/5b1r/q3p3/n1PR2P1/nqbrrb2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 h4 gxh4 axb5 e5 Qd3 exd4 e5 Bc5 Qe2 Bf8 Qe4 fxe4 Kd2 Kf7 f4 Kg7 b4 h5 e6 a5 e7 d5 e8B h3 b6 a4 b7 h4 b5 d3 Ke3 h2 Kd4 a3 f5 e3 f6+ Kh6 f7 d2 Bb2 d1N Ne2 h3 Nec3 a2 Bc1 Na6 b8Q Ne7 Rg1 h1Q Ne4 h2 Ng5 Nc6+ Kd3 d4 Kc4 d3 Ne4 d2 Nbc3 Ba3 f8N Be6+ Nd5 Nc5 Nd7 Nc3 Nd6 d1B Nb6 Qe7 Bb2 Nd4 Nbc8 Ndb3 Bc6 Qf8 Bd3 Be2 Rgd1 Bf1 Rd2 Ra7 Rad1 a1B Be2 Na2 Qa8 Rh7 Bh8 Be5 Ra1 Bc1 Qb8 Bd7 Nb4 Bf4 Kd5 Qg1 Qa8 h1R Na6 Rh4 Qb8 Bh3 Bh5 Rd7 Qb6 Bf5 Qa5 Bg4 Qb4 Bf3+ Qe4 Rd8 Rb1 Na1 Rb3 Qf6 Rbd3 Qb2 Rd4 Qa3 Ra4 B3e2 Qe5 Qh1 Nb4 Bd3 Ra6 Bh7 Rb6 Bg8+ Bf7 Ra4 Na6 Rb4 Ba8 Rb1 Kc6 Nd3 Kb7 Nc5+ Ka7 Rd7 Bg6 Bd5 Be8 Bb2 Ne4+ Be6 Qf5 Bc4 Rd1 Rd3 Ned6 Bed5 Bb7 Rd4 Bh5 Qe1 Be5 Bf1 Bc6 Qeb4 Rd3 Re1 Bh8 Bc1 Qe5 Qb1 Rb3 Rdd1 Rd3 Rg4 Rd2 Rh4
1n2KQ2/1pN4N/q3r2b/1RB1q1pP/6R1/P1nN3n/kP2bB1r/1b1r1bR1 w - - 0 1 illegal: No possible last move, all moves rejected
r3r2R/1pq1nq2/1k4bN/3QbpN1/5B1q/3PqP2/N1B1P2B/Kn1Rb2n w - - 0 1 legal: proof: b4 a5 Bb2 axb4 Bc1 d5 Nh3 d4 Ng1 d3 cxd3 Bg4 Na3 Bf5 Nb1 Bc8 g4 h5 Nc3 hxg4 Nb1 e5 Qb3 e4 Kd1 e3 Kc2 exd2 Kb2 Bf5 Qd1 Bd7 Kc2 Bc8 Kb2 Kd7 a4 Kc6 h4 g5 a5 b3 h5 g3 f3 g2 a6 g4 h6 g3 h7 Nh6 a7 Ng4 Rh6+ Bd6 Qe1 d1Q Rh2 Qh4 Ra2 Be5+ Qc3+ Kb6 Bf4 c5 Ra1 c4 Nh3 g1Q Ng5 Nf2 Bh3 g2 Bd7 Re8 h8B Nh1 Ba4 Bf5 Bg7 f6 Nf7 Bg6 Nh6 f5 Bf6 Qc5 Qd4 g1Q Nc3 Qe3 Na2 Nc6 Bg7 Qdg1 Rd1 c3+ Ka1 Ne7 Qd5 Qc7 Rh3 Qgg4 Bh2 Qgc4 Bh8 Bg3 Be5 c2 Bf4 c1B Nb4 Bd2 Na2 Rad8 a8N+ Ka7 Nb6 Bde1 Nd7 Ra8 Ne5 Kb6 Nef7 b2+ Kb1 Bc3 Bc2 Bge1 Ng5 Be5 Ng4 Qg3 Rh8 Qh4 Nh6 Qb3 Qe4 Qf7 Qd5 Bb4 Nc3 Ba5 Ka2 b1N Ka1 Bd6 Na2 Bd2 Nh7 Be1 Ng5 Be5+
bq2R3/1p1qrN2/1P4p1/kBPq2bn/b5RQ/1r2B1R1/2P1Nn2/1BKb3n w - - 0 1 illegal: Other
Rn1N2K1/1pBb1Rnp/Nq3nb1/Q1bP4/3rP1P1/1k3rn1/6B1/1BqR3r w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kh5 c5 g4 f5 a4 f3 d4 c3 e3 c2 a5 c4 g6 f4 g7 f2 a6 c3 a7 f3 Na3 b3 Qe1 b2 Nh3 b1B Ng5 Bc5 Ne6 Qb6 Bg2 f1N Nd8 Nf6+ Kh6 Ng3 Rf1 Rf8 Nb5 Kc4 Nc7 f2 Na6 Kb3 g8B+ Rf7 Bd2 c1R d5 c2 Ba5 Rf8 Kg7 Bd7 Be6 Rf7+ Kh8 Ngh5 Bf5 Ng7 Bd3 Rd1 Bf5 c1Q Bfe4 Qb4 Bc7 Qb6 Qa5 Rd4 Rd1 f1N Bd3 Nfh5 Kg8 Nfg3 Ra2 Rf1 Rf2 Rh1 Rf7 Bc2 Bb5 Bcf5 e4 Bg6 Bd3 Nf6+ Kh8 Nc6 Bb1 Rc8 a8R Nb8 Bd6 Rc6 Bf4 Re6 Bc7 Re5 Re1 Rf5 Rd1 Nfh5 Kg8 Rf4 Ne6 Rf3 Nd8 Nf6+
1k2b1n1/Npb3PR/2RrprB1/2Q1KNq1/q2P2P1/2qr2n1/3Bnq1B/6N1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 Ke2 Kd7 Ke3 h5 Kf4 c5 g4 Kc7 a4 b3 a5 e3 d3 b2 a6 e2 g6 e1Q a7 h4 f3 e6 g7 h3 Be2 c3 Ke4 c2 f4 c4 f5 c3 f6 h2 f7 Bd7 Ke5 Qf2 Ra2 Rh6 Nd2 b1Q Qf1 Qa1 Qg2 Be8 Ra6 Qa4 Nc4 Rf6 Bd2 c1Q Ne3 c2 Qd5 Qca1+ Qd4 c1R Nf5 Qc3 Rd6 Be7 f8B Rd1 Ra6 Bc5 Bd6+ Kc8 Bf3 Bb6 Be4 Bc7 Rb6 Rf7 Rc6 Qg5 Bd5 Rd7 Bb3 Rf7 Bc2 Rf6 Bb1 Na6 Bc2 Nc5 Bb1 Rb8 a8N Nb3 Bc2 Nc1 Nb6+ Kd8 Bb1 Ne2 Nc8 Ra8 Bc2 Ra6 Na7 Rb6 Nb5 Kc8 Na7+ Kb8 Bb1 Qcb3 Qc5 Qc3+ d4 Qgh4 Nh6 Ra6 Bg6 Qg5+ Nf5 Rb6 Nh3 Ra6 Rf1 h1N Ng1 Qg2 Rf3 Qf2 Rh3 Nhg3 Rh7 Rb6 Bc1 Rd3 Bd2 Nh1 Ke4 Ra6 Bh2 Rb6 Rd6 Nhg3+ Ke5 Bd8 Rc6 Ra6 Rc7 Rd6 Rc6 Bc7
N1qK1Bb1/pr3P2/b2b1N1n/4N1q1/r1pR1nRn/P2rQ3/2P1Rb2/3k3B w - - 0 1 legal: proof: b3 c5 b4 d6 bxc5 dxc5 e4 f5 h4 fxe4 Qe2 g5 Qd1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Kd4 f4 e5+ Kh5 b5 g4 h3 a3 e3 f5 h2 g5 b4 f6 e4 d3 b3 g6 e2 Kg5 e1N g7 h5 Bb2+ Ke3 d4 h4 d5 h3 d6 Nf3+ Kg6 Ba6 Kf7 Nd7 Nc3 Nde5+ Ke6 Nd3 d7 Nh4 Qh5 Kd2 Qf3 e3 Kf7 e2 Qf2 Nf4 Nd5 Bd6 Nc7 Qc8 d8R c4 Ke8 Nh6+ g8N Rh7 Be5 b2 Re1 b1R Bg2 Rb4 Bd5 Rab8 Na8 Ra4 f7 Rb7 Bf3 Rg7 Bc6 Rg3 Bg7 Rd3 Nf6 Bf8 Qd4 Bd6 Rf1 e1B Rf2+ Kc1 Nf3 Kd1 Rg1 h1B Ne5 h2 Rg4 Be4 Qe3 h1Q Re2 Qg2 Bf8 Bh7 Bf3 Qg3 Be4 Bg8 Bh1 Qf5 Rd7 Bf2 Kd8 Qh3 Re7 Qg5 Rd7 Bb8 Rd4 Bd6 Rg3 Qhf5 Rg4 Qc8+
8/pq1qP3/1RbNnp1q/1Q1rNNr1/BB4R1/3PPB2/1b1b1nnK/1n2k3 w - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 dxc4 h5 e5 fxe5 g6 Na3 gxh5 Nb1 h4 Kf2 Ke7 b4 Ke6 g4 Kd5 Kg2 Ke4 e6 h5 e7 c5 b5 c3 b6 c4 b7 a3 g5 c2 g6 c3 g7 a2 Nh3 f6 Ba3 c1B d3+ Ke3 Nd2 c2 Rg1 Bb2 Rc1 a1N Kh2 Nc6 b8N Bd7 Rg4 Nd4 Rg6 Nh6 g8B Bc6 Bh7 Ng4+ Kg1 Ne6 Ne4 Qd7 Rb1 c1Q Qa4 Nb3 Rh6 Nd2 Kg2 Rg8 Rg6 Bh6 Ng1 h3+ Kg3 h2 Nf3 h1Q Nd6 Rd8 Bb4 Bg5 Ra1 Nb1 Nh4 Qe4 Kh3 Kf2 Qb5 Ne3 Nhf5 h4 Bg8 Ng2 Kh2 h3 Ra6 Bd2 Rg4 Ke1 Rb6 Qd5 Bf7 Rg8 Bh5 Rg5 Be8 Qb7 Nd7 Rd8 Ne5 Rd7 Kg3 h2 e3 h1N+ Kh2 Nf2 Be2 Qd4 Ne4 Rd5 Bd1 Qcc5 Bh5 Qd6 Ba4 Qdd7 Ned6 Qc5 Rf4 Qc2 Bf3 Qc4 Rg4 Qe4 Ng7 Qg6 Ngf5 Qh6+
K1b1b1B1/1PN1B3/bb3P2/4kbnp/2r1q2Q/1Bnn2RP/2r1NpN1/R1b5 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 Be3 bxa4 Bc1 e5 g4 f5 Ra2 Qf6 Ra3 exf4 Ra1 f3 Nh3 f4 Ng1 Qf5 gxf5 Bd6 Be3 Ba3 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 h5 Kd5 a5 e4 g5 b4 a3 c4 a2 b5 g4 b6 d3 h3 g3 b7 d2 c5 g2 c6 a4 c7 f2 Qf3 d1B Qg4 f3 Ba6 f1B Bf4 f2 Nc3 a3 Bh6 Bc5 Nb5 Bc2 Qf3 Bb6 Nc3 Ne7+ Kd6 Nd5 Be3 Nc6 Nce2 Ne5 Rb1 a1B Bf4 a2 Rb3 Nd3 Qg4 Bb2 Bc4 a1Q Nf3 g1N Nh4 Nc3 Ng2 Qa4 Bg8 Nf3 Qh4+ Ng5 Be3 Ba3+ Bc5 Bc1 Rg1 Qc4 Rb1 Ra4 Ra1 Ra2 Ba3 Bb1 Bb4 Rc2 e5+ Kg7 e6 Kf6 e7 Qe4 Ba3 Rh7 e8B Re7 Bef7 Re5 Bb3 Rc5 Ng3 Rc4 Bc5 Kg7 f6+ Kg6 Ne2 Kf5 Bb4 Qd4+ Ke7 d5 Kd8 Qe4 Be7 d4 Bd6 Bd7 Be7 Be8 Kc8 Ke5 Kb8 Bg6 c8N Be8 Ng3 Be2 Na7 Bg4 Ra6 Bc8 Ne2 Nc5 Ngf4 d3 Ng2 d2 Ka8 d1B Nb5 Nd3 Ra2 Nb4 Ra1 Nd3 Ned4 Bdg4 Nc7 Bgd7 Ne2 Bb5 Ne3 Ba6 Rg3 Rc6 Ng2 Rc5 Ne1 Rc4 Ng2 Nf4 Ba3 Qd5 Bh7 Ra2 Ba4 Bbf5 Be7 Nd3 Bg8 Qe4 Bb3 Rc2
R1br3r/1n1rNPRN/BQ1q3P/2b3p1/Pr1n1rr1/4N3/2q2pRK/1kB5 w - - 0 1 illegal: No proof kernel
q2q3N/1k1Np1PR/4P3/B1p5/qNR1qqRn/1BK2b2/PbnQr2r/4q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g5 Qc2 d6 Qf5 gxf4 g5 d5 Qg4 hxg4 cxd5 Ra6 Kd1 Ra5 Ke1 Ra8 h4 Kd7 d4 c5 Kd2 Kc7 e4 b5 e5 f5 g6 f3 h5 f2 h6 b3 h7 f4 d6+ Kb7 e6 b4 d7 g3 d5 f3 d6 g2 Nh3 g1Q Bg2 f1Q Nc3 b2 Nf2 b1Q Rh2 b3 Rh3 b2 Nd5 Qe4 Rh2 b1Q Nc3 Qh1 Ng4 f2 Nd5 Ra4 Ne5 Qbb5 Kc3 Bg7 Bd2 Na6 Nb4 Qe1 Rc1 f1Q Rc2 Bf6 g7 Qf4 Bf1 Qhg2 Bc4 Nh6 Bb3 Nf5 Rh4 Ra3 Rg4 Nh4 Rc1 Qa4 Rc2 Qc7 d8Q Qcd7 Qa5 Qd8 Rc1 Bd7 Rc2 Bb5 d7 Be2 Rc1 Bf3 Rc2 Qa8 d8R Qge2 Rd4 Q2d1 Nd7 Be5 Kb2 Bf6 Rc4 Be5 Kc3 Bf6 Nc6 Nb4 Qd8 Nc2 Nb4 Rf8 h8N Be5 Kb2 Rf6 Bc3 Rh6 Rd5 Bf6 Rh5 Qdd6 Nf8 Qc7 Qd2 Qcd8 Nd7 Nf5 Rhg5 Rh2 Rh5 Nh4 Rh7 Qac6 Ba4 Bd4 Na6 Bf2 Ba5 Re3 Nb4 Re2 Bb3 Qa4 Kc3 Qec6 Kd3 Bd4 Ng6 Bb2 Nh8 Bc1 Kc3 Qce4 Nd3 Ba3 Nb4 Bb2+
1bb4b/3PN1rB/3pNr2/1PBr2P1/K1R1n3/1rq1n1k1/4Q1Bp/b1R3Rr w - - 0 1 illegal: No proof kernel
2r1BQN1/1rrP3P/5Rn1/3q1b1n/1ppNR3/2kP1nBK/1n5N/2n1br1R w - - 0 1 illegal: No possible last move, all moves rejected
1rB1R2n/1P1bN2Q/2RB1RqP/6NN/1r1bPbk1/b3p3/n1r1p2b/3K3r w - - 0 1 illegal: No possible last move
2b1b1r1/1P1p1Qn1/k3p3/3rN1n1/2q1Rb2/Kr1PRPB1/bN3rN1/3r1BR1 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 c4 h5 g4 a5 c5 e6 g5 b3 b6 b2 c6 h3 c7 e3 d3 h2 g6 e2 Kd2 e1R Kc2 h4 Kb3 a4+ Ka2 h3 g7 a3 Be2 Bd6 Bf4 Ne7 g8N Na6 Be5 Rh5 Qa4 Rd1 Qb3 Nc5 Qd5 Nf5 Qc4 Ne4 Nd2 b1B+ Kb3 a2 Qb4 Ng5 Qg4 Ng7 Bg3 Bf4 Ngf3 Rf1 Rg1 h1B Kb4 h2 Ne1 Be4 f3 h1R Ne7 Rf2 Ng2 Bg6 Qf5 Rb8 Re1 Rg1 Nc6 Qe7+ Kb3 Qc5 Ne5 Qc4+ Ka3 Ke7 Qf7+ Kd6 Bf1 Kc5 Re3 Kb5 Ne1 Ka6 Ng2 Bc2 Rae1 Bb1 Re4 Rb7 R1e3 a1R+ Kb2 Ba2 Ka3 Qc6 Ndc4 Rd1 Nb2 Rb8 Qg8 Be8 Qf7 Bb7 c8R Qc4 Rc5 Bc8 Rb5 Rh8 Rb3 Rg8 Rc3 Rh1 Rc1 Rh5 Be2 Rd2 Rg1 Rd1 Bf1 Nh7 Ng6 Rd5 Ne5 Ng5 Nc6 Rb7 Ne5 Rc7 b7 Rcc5 Qh5 Rb5 Qf7 Rb3+
1b1n1b2/3R1br1/KqQn1r1B/B2pPN2/1NB5/p4PbP/nr3kr1/N1R5 w - - 0 1 illegal: No proof kernel
1nb3Br/4r1p1/1Nr1npN1/2nb4/PN1Rb2P/2kq1P1Q/3rn1RR/1K4B1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 e3 d5 Qf3 e6 Nh3 d3 Qd1 d4 Ng1 Be7 Bh3 d2+ Kf1 d3 Kg2 Qd6 Ne2 Bf6 Ng1 Bd4 exd4 Qc6+ Kg3 Qa6 Bf1 Qd6+ Kg2 Qd8 a4 Kd7 c4 Kc6 h4 b5 d5+ Kc5 d6 Kd4 d7 b3 c5 b4 c6 e5 c7 e4 f3 e3 Nc3 g3 Ba3 f6 Qe2 d1B Ne4 b2 Rb1 b3 Bf8 d2 Rh3 Ra7 Rh2 Ne7 Nd6 Ng6 Nf5+ Kc3 Bc5 Nf8 Nh3 Ne6 Nf4 Bc2 Rd1 b1R Nd4 b2 Nc6 Bb3 Nb4 Bd5 Ng6 Rc1 Qb5 b1B Bc4 e2 Bg1 e1N+ Kf1 g2+ Ke2 Rc2 Qc6 Ba6 c8N Nd3 Nb6 Ndc5 Qc8 Rb7 Re1 d1R+ Ke3 Rc7 Re2 Rc6 Bb3 Re1 Bc4 Qg8 d8R Qh7 Qd7 Bc8 Ba2 Nf8 Qh3 Nfe6 Bc4 Be4 Rd4 Ba2 Ba6 Bad5 Bc4 Rb1 Red2 Rf1 Ke2 Rf2+ Kd1 Re2 Be3 g1N Bb3 Rb2 Kc1 Rc2+ Kb1 Re1+ Rd1 Ne2 Bg1 Qh6 Rc1 Qe3 Bc4 Qd3 Rd1 Nc1 Rdd2 Re3 Rdg2 Ne2 Ba2 N6f4 Na6 Bf7 Bf2 Bef5 Bc4 Re7 Nb4 Be4 Be6 Bg8 Bg1 Bf7 Bd7 Bfd5 Be8 Nfe6 Bf7 Qb5 Bg8 Qc4 Ka1 Qd3 Kb1 Rd2+
1Rq5/r1Npb3/B4rbn/r1B2k1n/1P1Pn2Q/4rPnp/N1KN3b/B6R w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 Qf3 fxe4 a4 c5 axb5 c4 Qb3 cxb3 Kd1 Kf7 g4 Kg6 d4 h5 c4 a5 b6 e5 c5 a4 f3 h3 c6 a3 c7 e3 g5 b2 b7 e4 Nd2 b1N Bb5 a2 Be2 h4 Nc4 h2 Kc2 h3 Bb2 Nd2 Ba3 Ra7 Re1 a1R Rf1 Be7 Ne5+ Kf5 g6 Rh6 g7 Nc6 b8B Ba6 c8Q Nf6 g8N Nh5 Qb7 Qc8 Nc4 Rf6 Bd6 Ne5 Re1 Ng4 Bc5 Nh6 Bb2 Ra5 Ba1 Bb5 Bf1 e2 Rc1 e1R Ne2 e3 Nc3 e2 Na2 Ne4 Nd2 Ba6 Qb8 Bc4 Qg3 Bf7 Qf2 Bg6 Qh4 Rfa6 Nf6 Re6 Ne8 Rf6 Rg1 h1N Nc7 N1g3 Rb1 Rd1 Rh1 e1B Rc1 Bf2 Be2 Re1 Ba6 Re3 Rce1 Bg1 Rc1 Bh2 Rcg1 Bf7 Rg2 Ne2 Rg8 Bg6 Rd8 N2g3 Rf8 Qb7 Rb8 Qc8
N2n2RQ/kbp1b1b1/3bB2N/7B/P1nr2q1/Prr5/2r2PRp/1KBN1n2 w - - 0 1 legal: proof: h4 d5 e4 f5 c4 fxe4 h5 dxc4 h6 a5 b3 a4 bxa4 gxh6 Qc2 h5 Qd1 h4 g4 Kd7 d4 Kc6 Kd2 Kb6 Kc2 h5 a3 e5 d5 h3 g5 h4 g6 c3 g7 h2 d6 h3 d7 e3 Qd2 e2 Qf4 e1B Qg3 e4 Qg5 e3 Bc4 e2 Bd3 Bd6 Bd2 Nh6 g8B Nc6 Be6 Nf5 Bg8 Ne3+ Kc1 c2 Qg6 Nf1 Bd5 Qg8 d8N Ka7 Bg2 b5 Bde4 b4 Qe6 b3 Bf5 Qg4 Qe5 Bb7 Ba5 Beb4 Nd2 e1B Nf7 Rad8 Nc4 Bec3 Ne2 Be7 Bc8 Bbd6 Rg1 h1R Nh6 h2 Nb6 Rd7 Bb4 Nd8 Na8 Bd4 Qh5 Bg7 Nc3 Re8 Kb2 c1N Kb1 b2 Bf3 Nd3 Rg2 Rf8 Be2 Rf3 Nd1 Rg1 Bd2 Re3 Kc2 b1R Bc1 Rb3 Qh4 Nb2 Kb1 Rec3 Bf3 Qd4 Bh5 Qg4 Qf6 Be5 Qf8 Rd4 Qh8 B5d6 Bf5 Ne3 Be6 Re1 Ka2 Re2 Rb1 Rec2 Ka1 Nd3 Rb2 Nf1 Kb1 Rb6 Rb5 Nb2 Rg5 Rbb3 Rg6 Bge5 Rg8 B5f6 Nf7 Bg7 Nh6 Nc4+
Q1b1b2B/3Nr3/2pr4/q1Prr3/bpRRP3/3PRBnB/K1b2qN1/1nk5 w - - 0 1 legal: proof: e4 d5 Ke2 dxe4 h4 g5 b4 gxh4 b5 e3 Kf3 e2 b6 axb6 Ke4 b5 Ke3 b4 d3 e1R+ Kd2 e5 Ba3 e4 Kc1 e3 Kb2 e2 Nd2 Bc5 Nb1 Be3 fxe3 Qd6 Kb3 Bh3 Bc1 Qd8 Kb2 Bc8 c4 Kd7 a4 Kc6 g4 Kc5 a5 b5 a6 h5 a7 f5 g5 f4 g6 f3 g7 b3 Bh3 Kb4 c5 f2 Rh2 f1Q Nd2 Rh6 Bd7 h3 Rb1 h4 Bf5 Nd7 Be6 Ne5 Qc2 Ne7 g8B Nf5 Bef7 Rd6 Bg6 Ng3 Be4 Nc4+ Ka1 b2+ Ka2 Na3 Bg6 Qf2 Qa4+ Kc3 Be6 b4 Qa6 Kc2 Ne4 Rd5 Ra1 Nb1 Bh5 Rb8 a8R Rb6 Bd2 Rbd6 Bc3 Kc1 Rh1 h2 Nf3 h3 Nh4 c6 Rg1 h1B Nf6 h2 Nd7 Bf3 Ng2 h1B Bh8 Bg4 Qa3 Qa5 Ra7 Bf5 Bf3 Bg6 Bh3 Be8 Ra8 Ba6 Rd8 Bb5 Nh4 Bg2 Qa4 Bf1 Qa3 Ba4 Rg2 Ne4 Rg4 Ng3 Rd4 Rd1 Ra8 e1R Ng2 Rd2 Rb8 Rc2 Rd8 Rc4 Rg4 Re4 Rf4 Re7 Rg4 Be2 Rd4 Rh1 e4 Bed1 Rc4+ Bdc2 Be6 Rhh5 Beg4 Rhe5 Bh3 Bb5 Qa4 Ba6 Qa3 Bc8 Qa4 Qb5 Qa8 Rh6 Nh4 Kd2 Bhg4 Ba4 Bh5 Rd4 Nb6 Qa5 Ng2 Na3 Re1 Nb1 Re3 Rf6 Rd5 Rd6 Bfg4 Na3 Bh3 b1B+ Ka1 Bbc2 Ka2 Nb1 Nd7 Kc1 Be2 Rde6 Bf3 Rh5 Re5 Rdd6 Rd5 Rg5 Rdd4 Rgd5 Qa6 Ree5 Qa7 Na3 Qa8 Nb1
1b2B3/3NQbK1/P1bBnn2/prBN2pP/1nq5/3R1P2/3brn2/2R2Nkq w - - 0 1 illegal: No proof kernel
KR1b1q2/1q1k1pRN/Bq3P1N/PP1rp3/8/Rb6/bQ2b1Bq/1B1nnr2 w - - 0 1 legal: proof: e4 a5 c4 d5 h4 b5 b4 bxc4 b5 dxe4 Ba3 g5 Bb4 axb4 hxg5 Qd6 Rh5 Qd5 Rh1 Qd8 Ke2 h5 Ke3 c5 f4 e5 g4 b3 d4 h4 a4 h3 a5 h2 f5 b2 g6 c3 d5 c2 g7 c1Q+ Qd2 c4 d6 c3 g5 c2 f6 Kd7 g6 Na6 Na3 b1B Nc4 Ba2 Nf3 Qb2 Bg2 c1Q Rd1 h1B Ng5 Ne7 g8B Nb4 g7 Nd3 Rg1 Ne1 Bh7 Bb3 g8B Nf5+ Ke2 e3 Ra3 Qd4 Qb2 Q4b6 Bg6 Rh3 B8h7 Be7 Bh5 Qb1 Bhf3 Qf8 Bb7 Qe4 Ba6 Qeb7 Bg6 Bd8 Nh7 Nh4 Bb1 Nf5 Ra2 Rf3 Ra3 Nc2 Kd3 e2+ Ne3 Rf1 Kc3 Ne1 Ng4 Ne3 Kb4 Nd1 Nh6 Ra7 Bge4 Bf3 Rg7 Qf2 Bd5 Qh2 Kc5 Bg4 Bh1 Bge6 Bf3 Ba2 Bg2 Beb3 Bd3 Ke8 Bc2 Bg4 Bb1 Kd7 Qd4 Qe4 Qb2 Rc7+ Kb6 Rc5+ Ka7 Rd5 Kb7 Qe3 Kb8 Qb6+ Ka8 Nc2 Rg8 e1Q Rg5 Qe4 Rg7 Ke6 d7 Be2 Bb7 Ne1 Ba6 Be7+ d8R Qf3 Re8 Kd7 Rb8 Bd8 Qc1 Qc3 Qc2 Qcc7 Qb2 Qcb7+
1NB1R1nq/2pN2B1/1q2qQNb/2Kp1R2/2Pr4/n2P1Pr1/4q1kb/3n1R1n w - - 0 1 legal: proof: e4 a5 b4 f5 h4 fxe4 a4 b5 Qg4 g5 Rh3 gxh4 Qd1 Ba6 Rh2 axb4 Rh1 b3 Qe2 b4 Qd1 Bb5 axb5 Bg7 Ra7 Bh6 Ra1 Bf8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 g4 Kf4 c4 e5+ Kd5 h5 d3+ e3 b6 h3 g5 h2 f3 Kg3 g6 h4 b7 b2 g7 h3 Qe2 e4 Na3 b1Q Bb2 b3 Qc2 e2 Bg2 e1B Qc1 e3 Ra2 e2 Qd1 Rh4 Ra1 Qe8 Ra2 Na6 b8N Nc5 Bc1 b2 Bf1 Ne4 Nc2 Nf2 Nd4 d6 Qd2 Nd1 Qc3 Qe6+ Kc6 Bd2 Nb3 e1Q Nc5 Bf4 Ra5 Q1e2 Ncd7 Bh6 Be3 Rd4 Rf5 d5+ Kb5 Ra1 Bf4+ Kf2 Be5 Bd6 Bf6 Bg3 Kc5 Ra8 Na6 Rf8 Nab8 Bgf4 Be5 Rf6 Bg2 Rg6 Bf1 Rg3 Bg2 Qf1 Ne2 Qe1 Rg1 h1Q Bf6 h2 Bh3 Be5 Nf4 Qe2 Ng6 Bef4 Bg4 Be5 Rf1+ Kg2 Nb6 Qbc2 N6d7 b1N Qb2 Na3 Qb6 Qb2 Qc6 Ne7 g8R Qb1 Rd8 Ng8 Re8 Qbb2 Qb6 Qg1 Qd6 h1N Bg7 Qh2 Qf8 Qb7 Qf6 Qa7+ Kb4 Qab6+ Ka4 Bc1 Ndf8 Qe7 Rg5 Qh8 Bc8 Qee6 Nfd7 Rgg4 Rh5 Bh6 Rf5 Qbc6+ Kb3 Bh2 Kb4 Qa6 Kc5 Rg3 Re1 Qb7 Rf1 Qbb6+
1K5B/3B1q1n/1q2r1qp/Pr2N1kp/8/4n2P/rPB1Rqbn/RNQ3Rq w - - 0 1 illegal: No possible last move, all moves rejected
4n2B/bB6/bQbp4/1Nq1Brp1/3PKbkr/3PP1qN/bRq5/1R3R1r w - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 g5 axb4 d3 Nc6 c3 Nd4 g6 hxg6 cxd4 g5 Be3 g4 Bd2 Qg5 Bc1 Qd8 Kf2 Ke7 a4 Ke6 h4 Kf5 a5 c5 a6 b5 h5 g5 a7 f3 Ke3 b3 h6 c4 h7 c3 Rh3 b2 Nd2 b1B Ra3 f2 Ra4 c2 Nb3 g3 Ra5 g2 Rh1 Ba6 Na1 Qe7+ Kf3 Ba2 Qd2 Nf6 Qd1 Qc5 Bb2 c1B Nb3 b4 Rh4 Ne8 Rh1 Bf4 Nc1 b3 Bc3 b2 e3 b1Q Bb4 Qc2 Nh3 g1Q Be2 f1B Rb5 B8d6 Ba5 Bb8 Rb1 d6 Be1 Rf8 h8B f6 Bg3 Qh2 Nf2 Bh3 Rf1 Rf7 Qd2 Rh7 Bd1 Rh4 Ne2 Qg1 Nc3 Qh2 Nb5 Qg1 Bh2 Qg2+ Ke2 Qg3 Ne4 Kg4 Nf2+ Kh5 Rb2 Bd7 Nh3 f5 Rb1 Kg4 Rb2 Q2c4 Bb3 Qc2 Bd5 Bc7 Bb7 Bb6 Rbb1 Rc8 a8R Ba7 Rb8 Rc6 Na3 Rb6 Rbe1 Rb1 Nb5 Ra1 Rb1 Q5c4 Rf2 Qc5 Rb2 Rh1 Rf1 Be5 Rbb1 f4 Rb2 Qa4 Qa5 f3+ Kd2 f2 Qb6 Bf4 Ke2 Qc3 Rc8 Qcb4 Rcc1 Qc5 Rcb1 Be5 Rfd1 f1R Re1 Rf5 Rf1 Qg1 Bg3 Bf4 Bh2 Kh5 Kf3 Qg3+ Ke4 Kg4 Qc7 Qd1 Qb6 Qdc2 Rfd1 Qe1 Bg1 Bg3 Bf2 Bh2 Bg3 Qg1 Bge5 Bf4 Rdc1 Qg3 Rf1 Bc6+
2q4r/2RpPr2/1P3nq1/pn2K2k/q5qq/3Pn1RN/B1Rr4/b2BBN1Q w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b6 b5 Ba6 a5 bxa5 b6 Bb5 cxb5 a4 Kf2 h5 Kf3 f5 g4 Kf7 e4 Kg6 e5 c5 e6 a3 g5 c4 d3 c3 e7 c2 b7 h3 b6 h4 Be3 c1Q Ra2 h2 Bc5 h3 Rc2 a2 Rf2 a1Q Ba3 Qc4 Re2 Nf6 Qd2 Na6 b8R Qdc8 Nc3 Bg7 Bc5 Kh5 g6 Qaa4 Bd4 Nc7 Rg2 Nb5 Rg3 a5 Bf2 Rg8 Ke2 f3+ Ke3 Qg4 Be1 f2 Be2 f1R Bd1 Rf2 Nce2 Rf8 Qb2 Rf7 Qa1 Rg2 Rb7 f4+ Kd2 f3 Ke3 f2 Rc7 Bh8 g7 Qg6 g8B f1N+ Kf3 Ne3 Qc1 Bg7 Qc6 Bh8 Qe4 Rb8 Kf4 Bg7 Ke5 Qg4 Nd4 Rd2 Ndf3 Qg6 Ne2 Bh8 Ng5 Bg7 Rhg1 h1Q R1g2 h2 Nh3 Qg1 Qc6 h1Q Qb7 Rf8 Ba2 Rf7 Rf2 Qhh2 Qh1 Qgg2 Nc3+ Qf3 Nd5 Qfg4 Rg2 Qb7 Re2 Rh8 Rf2 Qc8 Re2 Nf5 Ne3 Qf2 Nf1 Ne3 Rf3 Qfh4 Rg2 Rb2 Rgg3 Rh2 Rf2 Rg2 Rb2 Rd2 Rbc2 Ng2 Ra7 Ng8+ Kd5 Ba1 Rac7 Nf6+ Kc5 Nc3 Kd6 Ne3 Ke5 Nb5+
5b1b/2Q5/N3rpb1/2pN1n2/2B1R1q1/Bbq1BPbP/K1R2P1r/2b1R1bk w - - 0 1 legal: proof: g4 d5 b4 h5 c4 dxc4 b5 hxg4 b6 Nd7 Nf3 Ne5 Ng1 Nf3+ exf3 axb6 Ke2 b5 Ke1 b4 a4 e5 d4 Ke7 Kd2 Kf6 Kc2 b5 Kb2 c5 a5 g5 a6 g3 d5 g4 a7 g2 d6 e4 d7 g3 Qa4 e3 Bd3 Kg5 Ne2 Kh4 Na3 Kh3 Kb1 g1B Qd1 Kg2 Kb2 c3+ Kb1 b3 Qc2 b4 Ra2 b2 Nb5 Qa5 d8B Bd7 Nd6 Ba4 Nb5 Ne7 Ra1 Nf5 Bh4 Re8 a8R Re6 Qd1 c2+ Ka2 b1B+ Kb2 b3 Be7 Qc3+ Ka3 Rhh6 Bb2 c1B Bc4 Rh7 Qd7 Rh3 Ned4 e2 Re8 e1B Qc7 Bed2 Bd8 f6 Ne2 Bdh6 Ra2 Bhg7 Be7 Bh8 Bd6 Ne7 Be5 Bg6 Bf4 Nf5 Be3 Bd2 Bc1 b2+ Bb3 b1Q Rc2 Rh4 Bb2 Qd1 Ka2 Bc1 Ba3 Qdd4 Bc4 Qg4 Re7 Rh7 Re8 Rg7 h3 Bh2 Re1 Rg8 Ng1 Kh1 Re7 g2 Ne2+ g1B Nf4 Bg3 Nd5 Rd6 Re5 Re6 Re4 Be8 Rf1 Qg6 Bg5 Bgf4 Qf7 Qh5 Bh6 Rg2 Nbc7 Qg4 Na6 Rh2 Qc7 Bg3 Rfe1 Bg6 Be3 Bb3+
B3k3/4b1PP/1rNRp2r/1r1B4/2p3Nb/n2bP1QK/rb3B1R/1r2N1qb w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 h5 b5 hxg4 b6 axb6 Na3 b5 Nb1 b4 f3 g5 Qa4+ Nd7 Qc2 g3 Qd1 Ndf6 f4 g4 Nf3 Ne4 Ng1 Ng5 fxg5 Rh4 Nf3 Rh5 Ng1 Rh8 h4 c5 d4 f5 a4 b5 e3 g2 Kf2 e6 Kg3 b3 d5 b4 a5 b2 g6 b3 a6 f4+ Kh2 g3+ Kh3 f3 a7 c3 g7 f2 h5 c4 h6 c2 d6 Qg5 Qd3 Bb7 Nd2 b1R Qd4 b2 Ra5 Nf6 Ra4 Nd5 Ra5 Nc7 Rh2 Be7 Ne4 Nb5 Qe5 Na3 Bd2 c1B Nf3 g1R Ne1 g2 Ra6 Rh7 Be2 f1B Bf3 Bd3 Nf2 Rf1 Qg3 g1B Ng4 Bf2 Bd5 Qg6 Qf4 Bfh4 Qg3 Rf5 Bc3 Rh5 Rc6 Rh8 h7 Rh6 Bb4 Rb8 a8B Ra1 Qf2 b1R Qg3 Ra2 Ba5 Bb2 d7+ Kf7 d8N+ Ke8 Bc3 Rf8 Rd6 Rf5 Nc6 Qg5 Bh1 Rb5 Bd5 Qg6 Nc2 Rb6 Be1 Rb5 N6d4 Bc6 Bf2 R8b6 Ne1 Qe4 Ndc2 Qh1 Nb4 Qf1+ Bg2 Bf3 Nc6 Qg1 Bh1 Bd1 Be4 Bf3 Bd5 Bh1
B1BkN1rR/N1p4p/1q6/3P2n1/n1bN3R/1QP3Pb/bK1n2bb/n1B3n1 w - - 0 1 legal: proof: e4 b5 b4 a5 f4 axb4 e5 g5 e6 gxf4 g3 Ra3 g4 Rg3 hxg3 dxe6 Ne2 e5 Ng1 e4 a4 e5 d4 f5 Kd2 b3 Kc3 f3 a5 b4+ Kb2 f4 c3 f2 d5 e3 g5 f3 g6 e2 a6 e1N a7 e4 a8B e3 g7 e2 Ra7 Nf6 g8N Nbd7 Ra2 Nc5 Bg5 Bh3 Rh2 Nc2 Ra7 e1N Qd3 Na1 Na3 Qb8 Qd4 Kd8 Bc4 f1B Rh1 f2 Bc1 Nf3 Qd3 Qb6 Ra5 Bfg2 Nc2 f1B Rh2 Nfe4 Ra4 Neg5 Nf6 Rg8 Ne2 Ng1 Na3 Bg7 Ne8 Bd4 Qc2 Be3 Kb1 b2 Nd4 Bf2 Bb5 Bc4 Qb3 Be3 Ka2 b1N Kb2 Nd2 Ba6 Bf2 Bc8 Be3 Qa2 b3 Nab5 Bf2 Na7 Be3 Ka3 b2 Qb3 b1B Kb2 Ba2 Rh1 Ne2 Rf1 Bg1 Rf8 Bh2 Rb4 Ng1 Ra4 Rg6 Rh8 Rg8 Nc2 Bd3 Rh4 Bc4 Nd4 Na4+
RRN1QN2/B2b1Pq1/1N1rp2p/1B2P1rK/2bb1b1b/1n2B2P/6r1/3kb2q w - - 1 2 legal: proof: c4 a5 g4 d5 b4 dxc4 a4 b5 Ra2 f5 Bh3 fxg4 Ra1 Nc6 Bf1 Na7 Ra3 axb4 Ra1 b3 Qc2 b4 Qd1 Nb5 axb5 Ra7 Bh3 Ra3 Bf1 Ra8 f4 Kd7 Kf2 Kd6 Kg3 Kd5 Kh4 Ke4 d4 c5 b6 g5+ Kh5 b2 d5 g3 d6 g2 h3 b3 f5 h6 b7 c3 b8N c2 f6 e6 d7 c4 f7 g4 e3 c3 Ra3 g3 Nf3 g1B Ra7 g2 Bc4 Ne7 Ba6 Nc6 Rh2 Qf6 d8B Bb4 Rc7 Bd7 Bb5 Ra6 Ne5 Nd4 Be7 Rd6 Rb7 Rg8 Ra7 Rg5+ Kh4 Qg7 Bd2 c1B Ng6 c2 Na3 b1B Nc4 Kd3 e4 b2 e5 Ba2 Nb6+ Bc4 Nf8 b1Q Ra8 Nb3 Nc6 Bd4 Na7 g1R Nac8 R1g2 Be3+ Bbd2 Qh1 Ke2 Bd8 Bb4 Bc7 Bca3 Bb8 c1B Ba7 Bcd2 Qc1 Qa1 Qc2 Qh1 Qe4 Kd1 Qc6 R2g3 Rf2 Rg2 Re2 Bdc1 Rb2 Bbc3 Bf2 Bf4 Be3 Rg6 Kh5 Be1 Qc7 Bh4 Qd8 Bb4 Qe8 Bbe1 Rc2 Bd3 Rc7 Bc4 Rb7 R6g4 Rbb8 Rg5#
1q2k1n1/1B6/R1n2P1n/1r1p2K1/1Bpq3b/2PnBNRP/N2q3Q/1n1N1b1n w - - 0 1 illegal: No possible last move
3B4/1B3brR/p1QrP1n1/N3Bbrp/2PN1r1b/P1K5/1r3q1r/2RNkq2 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 b5 h5 bxc4 h6 gxh6 Rh3 h5 Rh1 h4 d3 c5 Nd2 c3 Kf2 c4 Ndf3 c2 Nd2 c3 Nb1 Nc6 Ke1 Ne5 Nf3 Ba3 Ng1 Nc4 dxc4 Bf8 b4 Ke7 g4 Ke6 e4 Ke5 g5 f5 g6 d5 a3 a6 g7 f3 b5 f2+ Ke2 d4 Kd3 f4 b6 h3 b7 h2 Qe2 f3 Bb2 Kf4 e5 Kg3 b8B c1R Qc2 Qf6 Bg2 f1Q+ Qe2 c2 Bd6 f2 Bh3 Ne7 g8N Rb8 Bg4 Bf5+ Kd2 d3 Qe1 Ng6 Bd4 Rb2 Qe4 Be7 Kc3 d2 Qa8 d1R Bb6 h5 Qc6 Rh7 Bd8 Rg7 Nf3 Qf8 Ra2 Bh4 Ne7 Rd5 Bb8 Rcd1 Nd4 Qf7 Bf3 c1R+ Nc2 Ra5 e6+ Rd6 Ra1 Rd1 Bbc7 Rd2 Nd4 Re2 Bg2 Qf6 Rg1 h1B Qb5 Qf8 Bb7+ Bg2 Nec6 Qf7 Rh1 Bge4 Qb6 Rab5 Na5 Bc6 Ra2 Be8 Qc6 Qf8 Ra1 Bf7 Rh2 Bg4 Bb8 Rg5 Rh1 Bf5 Rg1+ Qg2 Rd1 f1R Rd3+ Kf2 Rd1 Rd5 Be5 Rd6 Rd3 Ke1 Rg3 Qf2 Rg4 Bd3 Rf4 Be8 Rf7 Bf5 Rc7 Re4 Re7 Rh1 Rd7 Rf4 Re7 Rg8 Rh7 Rh2 Qd7 Qf1 Qc6 Rg7 Qg2 Rfg4 Qc6 Rbc2+ Kb3 Be4 Kb4 Q8f2 Kb3 Rf4 Nc3+ Rc1 Rb1 Bf5 Nd1 Rc2 Rc1 Rb2+ Kc3 Bf7
2nq4/PB1R1p2/N1N1rP2/nB2qp1r/q3kb1B/2P1N2q/1nnq4/1RQ2K2 w - - 0 1 illegal: No proof kernel
q3qBq1/bQnpb3/3P4/1qBbP1kb/rp1N4/1NP2r2/R6N/2KB1Rb1 w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 c5 Ba3 cxb4 Bc1 h5 a3 hxg4 Bh3 b5 Bg2 b3 Bf1 Na6 a4 b4 Nc3 Nc7 Nb1 Nb5 axb5 Rh5 Ra3 Rh6 Ra1 Rh8 e4 Ke7 d4 Kf6 Kd2 a5 h4 g5 b6 a4 d5 a3 c3 a2 h5 f3 d6 g3 h6 g2 h7 g4 b7 g3 b8B f2 e5+ Kg5 Bc7 f5 Bc4 f1Q Ne2 g1B Qe1 f4 Bf7 f3 Be8 b2 Bb8 g2 Ng3 f2 Qd1 Bb7 Ne2 Ra4 Bh5 Ne7 Ba7 Bd5 Bc5 Qe8 Nd4 Qb5 Qf3 f1Q Rh2 Rg8 h8N Qfc4 Ng6 Bf2 Qe4 g1B Nh4 Rg6 Qh1 Rf6 Bd1 Rf3 Kc2+ Be3 Nd2 b1B+ Kb2 Bh7 N2b3 Bg6 Bd2 Bgf7 Kc1 Bh5 Rb1 a1Q Rf2 Be4 Rf1 Qa2 Rb2 Qg8 Rc2 Nd5 Rb2 Ra6 Rc2 Qaa4 Ra2 Nc7 Qg2+ Kh6 Qh1 Be7 Qg2 Bd5 Qh1 Rf6 Nhf3 Kg6 Nh2 Rf3 Ne6 Bef2 Bh6 Ra5 Bf8 Ra7 Nd8 Kg5 Nc6 Qaa6 Ncd4 Qac8 Kd2 Ra4 Kc1 Qa8 Re1 Rh3 Qe4 Rf3 Rf1 Be6 Qc6 Bd5 Qb7 Qe2 Nc2 Ra6 Bb6 Ra4 Bd4 Qb5 Ba7 Bb6 Ncd4 Ba5 Bc5 Bb6 Kc2 Ba7 Kb2 Qab8 Kc1 Qa8
N6q/3PR1Q1/2N1rn2/Pq3p1k/q2qrR2/2Rr1PKN/1BB2p2/3rqnb1 w - - 0 1 illegal: No proof kernel
3KR3/6N1/2bN2R1/1qqb2q1/n2kpp1q/q2B1PQ1/1b1PP1b1/RrN1Bn2 w - - 1 2 illegal: No possible last move, all moves rejected
R2Qqr2/4q3/qp1p2K1/1P6/rr1P1Bk1/RnBnPr2/4rRN1/3bq1NN w - - 0 2 illegal: No extended proof kernel
1qBN2qb/p2qb1BQ/5q2/2p1Rb1R/R4P2/Pk1rqrP1/3n1B2/1NbK4 w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 c5 fxg4 c6 g3 Nc3 g2 Nb1 bxc6 Qb3 c5 Qd1 c4 Nh3 g1B Bg2 g5 Ke2 g4 Bf1 g3 Nf4 g2 Ke1 Nc6 Ne2 Nd4 Qb3 Nf5 Qd1 Ng3 hxg3 Qd7 Rh4 Qd4 Rh1 Qd8 b4 Kf7 d4 Ke6 a3 Kd5 f3 c5 b5 e5 b6 h5 b7 c3 b8R Kc4 d5 h4 d6 c2 d7 h3 Rh2 e3 Qd6 e4 Nf4+ e2 Rb3 Nf6 Rd3 Be7 Ra2 Rf8 Ne6 Bd4 Qb6 g1Q Nc7 Qe3 Rh1 h2 Bd2 c1B Rg1 h1Q Qb7 Qh7 Rh1 Qg8 Rh5 Qf4 Ne6 Qb8 Bc3 Qe8 d8B Qd7 Bb6 Kb3 Bh3 Be5 Rd4 Rf7 Ra4 Rf8 Kf2 e1Q+ Kg2 e3 Re2 Rf7 Nd8 Ne4 Bg4 Bh8 Bg7 Qb4 Kf1 Nd2+ Ke1 Q4f4 Kd1 Qf6 Qe4 Rf8 Qh7 Rf7 Ba5 Rf8 Reh2 Rf7 Re5 e2+ Ke1 Rf8 Rhh5 Rf7 Bc3 Rf8 Bd4 Rf7 Kf2 Rf8 Ke3 e1Q+ Kd3 Qg1 Ke2 Qe3+ Kd1 Qdd5 Bh3 Bf5 Bf1 Qd7 Ba6 Qbb5 Bb7 Rc8 Ba6 Qb8 Bb7 Rc6 Ba6 Rd6 Bc8 Qc3 Bf2 Rd3 Nc6 Rd8 f4 Rf3 Rae4 Qe3 Rc4 Qdc7 Ra4 Rd3 Nd8 Qd7
r3B1K1/2p1r3/kB3b2/p1Pq1Pr1/5q2/R1QqR1P1/R2Bn2r/1NNnq2n w - - 0 1 illegal: No possible last move
R2Rrn2/3qq1B1/2Kn2Q1/q1p5/Np2NPbk/RB2b1qn/1PN2bP1/6n1 w - - 0 1 legal: proof: e4 d5 h4 a5 c4 dxc4 a4 b5 e5 g5 e6 gxh4 Qc2 b4 Qd1 fxe6 Qb3 e5 Qc2 e4 Qd1 Ra6 Na3 Rb6 Nb1 Rb5 axb5 Bb7 Rh3 Ba6 Rh1 Bc8 Ke2 Kf7 Ke3 Kf6 d4 Kg5 d5 c5 f3 e5 b6 h5 d6 h3 d7 h4 b7 h2 Nc3 a4 Bd2 h3 Qb3 a3 Qc2 a2 Nd1 c3 Ba6 Qe7 d8N Bg4 Qd3 c2 Nf7+ Kh4 Bb5 c1N Qd4 Bh6+ Ng5 Nf6 Ba6 Nbd7 b8R Re8 Bc8 Nf8 Rb5 Ne2 Rb8 Qd7 Rb1 a1Q Qd6 Qa5 Bc3 Qe7 Ra1 Qd7 Kd2 e3+ Kd3 Ne4 Kc4 Qe7 Qe6 Nd6+ Kd5 e4 Qg6 Qa4 Qg8 Qad7 Raa8 Qa7 Ba6 Qad7 f4 Bg7 Rc8 Bd4 Qe6 Nc1 Qe5 e2 Rcb8 e1Q Rd8 e3 Qg7 e2 Bc4 Qf2 Ba2 e1B Ne4 Ne2 Qg6 Be3 Bg7 Qg3 Ndc3 B1f2 Bc4 Nd4 Nge2 Nf3 Rd1 h1Q Rd3 h2 Nd4 Qa1 Nc2 Qa5 Na4 Ng1 Rc3 h1N Ba2 Be1 Ra3 Nf2 Bc4 Nfh3 Bb3 Qde6+ Kc6 B1f2 Nf6 Qf5 Ne4 Qfd7+
2b1R2B/K3N1pb/BRbN1Qr1/1r3n2/1Pbn2Pb/4B3/kn2NPp1/3r1r2 w - - 0 1 illegal: No proof kernel
1BN4n/R1b2R2/q1nq2B1/3N1b1K/qrPpRBPQ/2P1r2b/4pp1r/5k2 w - - 0 1 illegal: No proof kernel
BK1R1R2/b2qQB1k/B6N/r2n2rp/p3bPpP/R1P5/3b2q1/nn2N1q1 w - - 0 1 legal: proof: d4 b5 a4 bxa4 g4 f5 Bg5 fxg4 Bf4 c5 dxc5 e6 Be3 e5 Bd4 exd4 Kd2 Kf7 Kd3 Kg6 Kc4 d5+ Kb5 h5 b4 a5 h4 g3 e4 g2 f4 a3 e5 a4 c6 d3 e6 d4 c7 d2 Kb6 a2 e7 d3 e8B+ Kh7 b5 g5 Bf7 g4 Na3 Qd5 Be2 Bb4 Nf3 g1B+ Nd4 Na6 Bf3 Nc5 Qe1 d1Q Qe7 d2 Nf5 Nf6 Nh6 Bf5 c8B Rg8 Kc7 Rg5 b6 Be4 b7 Nb3 b8R Ra5 Ba6 Ba7 Rf8 Qg1 Rh3 Qg2 Rd1 a1N Kc8 Qe6+ Kc7 Nd5+ Kb7 Bg1 Kb8 Qd7 Rg3 Qe2 Bh1 Qg2 Rd3 Be3 c3 Bbc5 Nc2 Bb6 Rg1 d1Q Ne1 Nd2 Rf1 Bbd4 Rf2 Nb1 Ra2 Bd2 Ra3 Qf5 Nc2 Qdg1 Ne1 Bf2 Rd4 Nc7 Rd6 Nd5 Rdd8 Qd7 Qd6 Ba7+ Ka8 Bf5 Bb7 Qf3 Qe7 Nf6 Bg2 Qg3 Ba6 Qh3 Bc6 Be4 Bcb7 Qhg2 Bc6 Bb6 Kb8 Nd5 Ba8 Ba7#
nNqQN3/3Rr3/r2RB3/1kq1p2p/Rnn3P1/prPKb3/7P/1B1b1Bb1 w - - 0 1 illegal: No proof kernel
7B/RK4qq/rn1n1b2/3PP2p/rQR1BP2/b1p3Rb/1BpNk3/1Nn3r1 w - - 0 1 illegal: No proof kernel
4n1RN/qq3Bn1/2Pq4/4n1K1/RNPpp1rN/1r3Q1b/RpP4b/Bk3b2 w - - 0 1 illegal: Other
4rRnK/1qN5/1nP2B2/b2B1p2/5RPb/nq2N3/p2pPqb1/Bk1r2RQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 h5 g4 d5 c5 f5 b3 a5 g6 f3 g7 d3 Rh3 a3 Bf4 d2 Qc1 d1Q Bg2 h4 Ra2 f2 Qb2 f1N Ra1 a2 Bh2 a4 Qc1 a3 Nd2 d4 Nb1 d3 Nd2 Ne3 Nc4 d2 Bd5 Bb7 Rf3 h3 Rf4 Qb6 Nf3 Nc2 Ng5 Kc3 b4 Be7 Ne6 Bh4 b5 Qf1 Qb1 Qf2 Nc7 Ra5 Bg3 h2 Ne3 h1Q Qd1 Qhf3 Qh1 Kb2 Rg1 a1B Bh2 Qa6 b6 Nd7+ Ke6 a2 Kf7 Na3 Bg3 Ba8 b7 Rb5 b8B Nb6 Ba7 Qb7 Kf8 Bf6 Bh4 Bc3 Bb8 Ba5 Bg5 Rb3 Bf6+ Rc3 Ne8 Qh3 Bbe5 Qhg3 Nc7 Qh3 Nd1+ Kb1 Ne3+ Rc1 Kf7 Rd1 Kg6 Nh6 g8R Bb2 Rb8 Re8 Kg7 Ng8 Rd8 Qhf3 Kh8 Bbc3 Bd4 Bcb4 Ba1 Bc3 Bg7 Bf6 Rb8 Bh4 Bgf6 Re5 Rf8 Re8 Ng2 Qb3 Ne3 Qa7 Bf3 Be4 c6 Qb7 Bg2 Bc2 Bd5 Be4 Ng2 Bf3 Ne3 Bg2
1k1r4/1bb2P1N/1NR1Q1rn/P1K1p3/BqpR1n2/B3R3/3P1qpn/1q3bB1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 b5 Kd4 e5+ Ke3 g5 f4 c5 a4 Kc7 h4 g3 a5 b3 h5 b4 f5 g4 h6 c4 h7 b2 f6 b3 f7 g2 Rh2 g3 Qg4 Bb7 Bd3 Nc6 d6+ Kb8 d7 Nd4 Ra3 Ne6 Nh3 g1N Bc2 g2 Ng5 Qe7 d8B Qb4 Rh6 Nf3 Nc3 b1Q Bb6 b2 Ba4 Bd6 Nd5 Nf4 Qe6 Nh2 Bd4 Ra7 Nb6 Bc7 Bc5 Ra8 Rd3 Ra7 Rd4 Ra6 Rh3 Nh6 Rf3 Rf8 h8R Rd8 Nh7 Qa2 Rg8 b1B Rg6 Bd3 Ba3 Qa1 Qd7 Bf1 Rc6 Qc1 Qe6 Qcb1 Be7 Be2 Bh4 Bf1 Bf2 Re8 Bg1 Rd8 Kf2 e3+ Kg3 e2 Re3 N2g4 Kf3 e1Q Red3 Qbc1 Re3 Nh2+ Ke4 Qf2 Qd7 Ne6 Kd5 Qcb1 Qd6 Q4b3 Qd7 Nf4+ Kc5 Rh8 Rf6 Q3a2 Nc8 Qab3 Rg6 Rd6 Nb6 Rg8 Qh3 Rdd8 Rc6 Rg6 Qe6 Qb4+
1N2rR2/k2B1PqP/b2nq3/3p1q2/p4p1Q/NKBR1B1n/4Pb1r/3nN2b w - - 0 1 illegal: No possible last move, all moves rejected
1rRK1N1b/1R2p2b/2P2P2/qpqnBrpP/5rR1/4n1Bk/BN1Qn3/4b3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 d5+ Kb5 g5 f4 d3 c4 d2 h4 b3 a4 g3 c5 b2 a5 d4 a6 b6 a7 g2 h5 d3 Nf3 g1B Ne5 Bf2 Rh4 Nc6 Nc3 Rb8 a8R Be1 Rb1 Bg7 Ng6 Be6 Ka6 Nd4 c6 Ne2 Nf8 Rh6 Kb5 Bh8 Rg4 Qd5+ Ka6 Qc5 Na4 Bb3 Bg2 Bc2 Bd5 Rh7 Ba2 Rf7 Ra1 b1Q Nb2 b5 Ra7 Kg7 Rb7 Nf6 Ka5 Nd5 f6+ Kh6 Nd7 Rff8 f7 Kh7 f5 Kg7 Ne5 Kf6 Ng6 Ng3 Qe2 d1N+ Qd2 Ne2 Ka6 N1e3 Ka5 Rfc8 f8B Rd8 Bh6 Rf8 Ka6 Rf7 Nf8 Ke5 Bg7+ Rf6 Rg1 Kf4 Rg4+ Kf3 Ka5 Rf7 Be5 Kf2 Re4 Kg2 Rg4+ Kh3 Bg3 Rf6 Ka6 Re6 f6 Re5 Rc7 Rf5 Rc8 Ra8+ Kb7 Ra4 Bb3 Raf4 Ra7 Qa1 Ba2 Bb1 Kb8 Bc2 Rb7 Bb1 Qc2 d2 Qd3 d1R Qd2 Nb4 Kc7 Nbd5+ Kd8 Bd3 Nc4 Qc3 Bb2 Ra1 Bb1 Ra8 Ba2 Rb8 Ba1 Q3a3 Be5 Qa5+ Kd7 Rf2 Nb2 R5f4 Ke8 Bh7 Kd7 Rf5 Ke8 R2f4 Kd7 Qa8 Kd8 Qa5+
k1bBN2n/3pR3/6R1/3Nb1RP/rn4q1/3b1rQK/1Pq1pNPp/q3r2B w - - 0 1 illegal: Other
R6R/2pp1qP1/2b1p1N1/RQPn1bBK/1rNkB2r/bq6/Pn3q2/1r5B w - - 0 1 legal: proof: d4 a5 b4 axb4 d5 e6 dxe6 Ra4 Qd2 Ra6 Qd1 Ra8 h4 g5 e4 gxh4 e7 Nf6 e5 Ng8 e6 fxe6 Bd2 Kf7 Be3 Nh6 Bc1 Ng8 Ke2 Kf6 Kf3 Ke5 Kg4 b5 e8B h5+ Kf3 h3 c4 h4 Kg4 h2 f3 b3 g3 h3 Bg2 b4 Qf1 b2 f4+ Kd4 f5 b3 f6 Qe7 f7 Bb7 Bf4 Be4 Na3 b1R Bg5 b2 Qe2 Bh7 Kh5 Ra4 g4 Rb4 Bc6 Na6 Nf3+ Kc3 Rd1 h1Q Ne5 h2 Ng6 Nc5 Rd5 Nd3 Ra5 Qf1 Bh1 Qf2 Qf1 Kd4 c5 Bh6 f8R Qef7 Nc4 Ne7 Qe2 Nd5 Rg8 Rd1 Rc1 b1Q Rc3 Re1 Rca3 Qb3 Ra8 Nb2 R3a5 Rb1 Rf8 Rg8 Qf1 Rg7 Rh8 Rg8 Nb6 Bg7 Qb5 Be5 Nc4 Bf4 Be4 h1B Bf3 Bc1 Be4 Bg2 Bf3 Bh3 Bh1 Bg2 Bh4 Rf8 g5 Q7f5 Nge5 Ne7 Nd3 Bc6 Bf7 Nd5 Nf4 Na4 Bg6 Qf6 Bf5 Ba3 g6 Nb2 g7 Qe7 Bd3 Rf6 Bde4 Qf7+ Ng6 Rf4 Bg5 Qe7 Nh4 Bf5 Ng6 Qf7 Nd6 Rg4 Nc4 Rh4+
2br3N/1Pp1b1Pk/3P2rq/3p1BR1/1Q1bn1n1/qBp3K1/1nN2BR1/4Rq2 w - - 0 1 illegal: No proof kernel
4B1nr/NN1nR1rb/k1P5/4bb2/1pN2qrb/P2RPQ1p/R2B2bp/1K6 w - - 0 1 illegal: No proof kernel
1qr3rN/1N1r3P/1K1b4/1nBb1NRn/1r3bP1/p1RPp2Q/1p4Br/4kB2 w - - 0 1 illegal: No proof kernel
2r5/1k1b1BnP/1n1R1b1B/B3RQ2/Np2np2/1N2Pn1R/r2p2KP/3qb2n w - - 0 1 illegal: No proof kernel
B1N3rq/1n1r1Pp1/PN3QP1/Kb1R2N1/p1r2R1n/3n1r2/2kpbBr1/3R4 w - - 0 1 illegal: No proof kernel
bnN5/1P4Np/2n2P2/npq3r1/5kbQ/1nBPp2R/Rr1B2Bb/RKn5 w - - 0 1 illegal: No proof kernel
N1r1n2B/qPN2Qp1/pB2P2r/P6n/2n3KR/2bnp2r/3bk1BR/Rn6 w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 h5 c5 hxg4 c6 bxc6 Na3 c5 Nb1 c4 f3 e5 Qb3 e3 Kd1 e2+ Kc2 e4 Qa4+ Bd7 Qb3 e3 Qa4 Bc6 Qb3 Be4+ fxe4 Qd6 Kc3 Rh3 Qd1 Qd8 Kc2 Rh8 b4 Ke7 d4 Kd6 h4 e1N+ Kc3 f5 a4 c5 d5 Ke5 a5 Kf4 e5 g3 d6 a6 b5 g2 d7 Nd3 h5 Nf6 e6 Ne8 h6 Qe7 d8R Ne5 b6 Qa7 b7 Nbd7 h7 Rc8 Qa4 Ndf6 Qd1 Nh5 Ne2+ Kf3 Na3 g1R Bd2 f4 Qc2 Rg3 Rd4 Rh3 Qg6 Bd6 Kc2 c3 Kd1 c4 Qf7 Bb4 Nb5 c2+ Ke1 c1B Nec3 Bb2 Na4 c3 Nc7 c2 Bc3 c1N Rh2 Nc4 Nb6 Nd3+ Kd1 Bc1 Nba8 Bd2 Bg2+ Kf2 Bb2 f3 Rh4 Bbc3 Ba3 Qb6 Bc5 Qa7 Bh1+ Kf1 Bb6 f2 Be4 Kg1 Bg2 f1N Qd7 Kf2 Qe7 Rf8 h8B Rf6 Qd7 Rh6 Qe7 Be1 Qd7 Nfd2 Qf7+ Kg1 Ke2 Nb1 Qf4 Bed2 Qf7 Ng3+ Kf3 Nh5+ Kg4 Nf2+ Kg5 Nd3 Kf5 Kf2 Kg4+ Ke2
1rnKB1q1/BP4b1/1pR2PnN/3p1PN1/p4Rr1/1B3R1b/1k2r1Qr/2n3b1 w - - 0 1 illegal: No proof kernel
1N1Q3N/bp2bpk1/b1RnPqr1/1Pb2nr1/RnB5/1P4p1/6K1/B3rRB1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 g4 h5 f5 hxg4 b3 Qb6 a3 Qb4+ axb4 e6 Ra4 exf5 Ra1 f4 Kf2 a5 e4 d5 h4 g5 c4 d3 c5 d4 h5 f3 h6 a4 c6 g3+ Ke1 f2+ Kd2 a3 c7 g2 e5 g4 e6 a2 h7 g3 Rh2 Na6 Rh5 Bd7 Rh1 Ne7 Qe2 Rg8 h8B Nf5 Ba3 Bb5 Qf3 Bc5 Nc3 Kf8 Qd5 Nd6 Nf3 g1B Ne4 Rg6 Ne5 Re8 Kd1 d2 c8R Rd8 Bc4 f1Q+ Kc2 d1N Kd2 d3 Rc6 Ba7 Nc5 Qf6 Ke1 Ne3 Ncd7+ Kg8 Rh4 Nef5 Kf1 d2 Kg2 d1R Nb8 Bgc5 Qd2 Rh1 Rf1 a1B Qd5 Rg5 Ng6 Bc3 Bc1 Bb2 Re4 Ba3 Be3 Kh7 Bg7 Rg8 Nh8 Rg6 Bg1 Rg5 Bf8 R8g6 Be7 Kg7 Qd1 Ne8 Qd8 Ned6 Rh4 Nc7 Rhf4 Ba6 b5 Nd5 Rh4 Ne8 Bd6 Nb4 Be5 Be7 Ba1 Ned6 Be3 Na2 Rg4 B3c5 Bg1 Nb4 Be2 Nc2 Ra4 Nb4 Bc4 Rh4 Qa5 Re4 Qd8 Re1
2k1bNB1/p4br1/nRb1KN2/1R3pr1/1pn1R2N/2rP2nb/1P3q1P/2B1Q3 w - - 0 1 illegal: No proof kernel
4qq2/2KNq2k/2p2PNP/1N2b3/r1Rb3n/4pqn1/3QPBpR/1rq2BB1 w - - 0 1 illegal: No possible last move, all moves rejected
1b5b/r6B/n2N3r/kbB3qR/1pqPQP1N/1qBqpK2/P2p3N/R5n1 w - - 0 1 illegal: No proof kernel
4Qbbq/rB2BnNk/1r4rr/2q2P2/4p3/q2pB2P/Kp1R2NP/R2R3n w - - 0 1 illegal: No possible last move, all moves rejected
1R1n2b1/3k4/1r2n1B1/1q1qpqBP/4p2P/1N1N2b1/R1BKnPQp/2rNq3 w - - 0 1 illegal: No proof kernel
r2n1R1R/2bb3B/3Q3b/n2P1K1p/1qNppB1q/P1N1B3/3nPb1N/k6r w - - 0 1 illegal: No proof kernel
2q3K1/r1BR1n2/2kbR1Np/b3RB2/pp3N1r/P2N2P1/1Qb1Pq2/1n1q1q2 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 Kf2 Kd7 Kf3 f5 d4 a5 d5 b5 d6 h3 g3 c3 a3 a4 Qc2 h2 Qb2 c2 Nd2 Ne7 Rb1 Nbc6 Nb3 Ra7 Bh3 Nd5 Bg4 Nc3 Nh3 Be7 Be3 c1B Bd4 Qg8 Be5 Bd2 Nc1 Nd8 Nd3 Kc6 d7 Nf7 d8R Bd6 Rd7 Qf8 Rbc1 Nb1 Rc4 Ba5 Re4 b4 Rf1 Be7 Bc7 Bd6 Re5 Bb7 Rc1 Qc8 Rc4 Ba6 Rce4 Bc4 Re6 Bb3 R4e5 Bc2 Bb8 Kb5 c6+ Kb6 c7 h1Q+ Kf2 f3 Ke3 f2 Kd4 f1Q Nhf4 Qh2 Kd5 Qhf2 Bh3 Qd1 Bg4 Qa6 c8N+ Kb5 Ne7 Qc8 Neg6 Kb6 Ng2 f4 Bf5 f3 N2f4 Kb5 Re8 Kb6 Ke6 Kc6 Bc7 h6 Kf6 Rf8 R8e6 Rg8 Nh8 Rg4 Nhg6 Rh4 Kg7 Qfg1 Re4 f2 R4e5 f1Q Kh7 Qgf2 Kg7 Qb7 Kg8 Qc8+
1knKRrBN/4q1R1/2b1b2p/2Np2R1/1Pp3P1/N1B1bP1Q/r6n/1r3qr1 w - - 0 1 illegal: No proof kernel
BbkN1K2/5B2/1q2rP1p/1nP1rP2/pQ1B1qr1/R3pq1n/8/N1N1R1rb w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Ke2 a5 Kf3 d5 Kf4 Kd7 Kg5 e5+ f6 h6+ Kg6 h3 Kf7 a3 g4 a2 b4 d3 c4 d4 f4 a4 b5 e4 b6 h2 f5 d2 c5 d3 b7 e3 g5 Ne7 g6 Qb6 g7 Nd5 g8B Nf4 Nh3 Bd6 Qg4 d1Q Ng5 d2 Nc3 Nh3 Ba6 Qf3 Bb5+ Nc6 Ne6 d1R Bb2 Rg1 Nd8 Bb8 Qb4 Rg4 Ne2 Qf4 Bd4 Ra6 Rhe1 h1Q Kf8 Qhf3 Nc1 Kc7 Bd3 Na7 Be4 Nb5 Bd5 Rh7 Bgf7 Be6 Be4 Bc4 Bc6 Bf1 Bcd5 Bg2 Bc6 Bh1 Bcd5 Ba7 b8N Kc8 Nbc6 Bb8 Na5 Rhg7 Ba8 Rh7 Rb1 a1R Rb3 Rhg7 Ra3 Rb1 Ba2 Re7 Bf7 Re5 Nab3 Ra1 Na2 Rc1 Na1 Rd1 Re2 Rdg1 Re1 Qa7 Nc1 Rae6 Be4 Qc7 Ba8 Qb6
1r5N/1Q2RKnn/1q3p1P/1b1p2B1/B5R1/1p1nbRb1/1NPPB3/bqkr4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 Ke7 e4 Kd6 h4 Kc5 e5 g5 e6 d5 e7 a5 e8B a4 h5 f3 Ke3 g3 h6 g2 b6 f2 b7 a3 Ne2 g1B Rh3 b3 Ng3 Kb4 Kd4 g4 Ke5 a2 Qf3 Bd6+ Kd4 Na6 b8R+ Qb6+ Kd3 Nc5+ Kd4 Bd7 Na3 Nf6 Rb7 Nh7 Bb2 Bb5 Nf5 g3 Be2 g2 Ne7 Bg3 Ng6 f1N+ Qe3 Rg8 Nh8 Rb8 Nc4 Rg5 Rd1 a1B Re7 B1f2 Rh4 g1Q Rg4 Rh5 Re1 Rh1 Bc3+ Ka4 Nb2+ Ka3 Bb4+ Ka2 Rd1 Nd3+ Bc5 Nf4 Ke5 f6+ Kf5 Nd3 Kg6 Rh2 Bd4 Rh1 Kf7 Ka3 Qf4 Ne3 Qc7 Nf5 Be3 Ng7 Bg5 Be3 Rf1 Ka2 Rf2 Kb1 Qb7 Qc1 Rf3 Rd1 Na4 Qb2 Bc6 Qa2 Nb2 Kc1 Be8 Qb1 Bd7 Bc4 Ba4 Bb5
rn4N1/1B5Q/2PrnbPq/2qRbKp1/RP1rpB2/4p1Rr/4NB2/1b3k2 w - - 0 1 illegal: No proof kernel
2q1r1Bb/5N2/R1p2k2/R1br1p1q/B1n1P3/2RNb1Bp/4rP1P/K1Q1n2r w - - 0 1 illegal: No proof kernel
1qN2R2/bbn5/r1p4b/R3P3/QB1k1rP1/1Bn1p1R1/3P1rp1/2KqrNN1 w - - 0 1 illegal: No possible last move, all moves rejected
1r2R3/1nB4R/1p1R4/QpPqr1P1/2q1N2p/KB3N2/bqB2bqP/1rk2n2 w - - 0 1 legal: proof: f4 g5 fxg5 c5 b4 a6 d4 cxd4 b5 axb5 e3 dxe3 c4 f5 g4 Kf7 a4 Kg6 a5 e5 a6 h5 a7 d5 Qd2 h4 Kd1 b6 Kc2 f4 Kb2 e4 Ra4 d4 Na3 f3 Ra6 e2 Ra4 e1Q Nb1 e3 Bg2 f2 Bf3 f1Q Qg2 e2 Ra6 d3 Ra2 d2 Bb7 d1R Be3 Nc6 Qf3 Nge7 Qf2 Rb8 a8B Qg2 Kb3 Qef1 Bf4 e1Q Ka3 Qee2 Nc3 Na5 Bc7 Qdd5 Qe1 Be6 Nf3 Rh5 Ne4 Rb1 c5 Bh6 Bc6 Nb7 Qa5 Nf5 Bd7 Bf7 Be6 Ne3 Rg1 Qff2 Rd2 Nf1 Rd4 Qec4 Bf5+ Kg7 g6 Be3 Rd1 Kh6 g7 Qfc2 g8R Bf2 Re8 Q2e2 Be6 Re5 g5+ Kh5 Re7 Bg8 Rh7+ Kg6 Bf7+ Kf5 Rh1 Kf4 Bg6 Nd2 Rhe1 Ke3 Bf5 Nf1 Rd4 Qe6 Rd6 Qed5 Be6 Nd8 Bc6 Nb7 Be8 Kd3 Bg6 Kc2 Bef7 Qdd1 Be6 Kc1 Bgf5 Qc3+ Bb3 Qec4 Ng3 Bf7 Bc2 Be6 Re3 Qdd5 Ne4 Qe2 Ned2 Re4 Rd8 Qf5 Rd6 Qh8 Ba4 Ba2 Bab3 Qc4 Re2 Ree8 Ree6 Qfd5 Ne4 Qg7 Rf6 Qh8 Rf8 Qa1 Rg8 Re5 Re8 Qb2#
Q3Br2/B3rN2/rpR1nK2/pP1N1r2/3P4/k1q4P/pb2Rq2/n1bNb2B w - - 0 1 illegal: No possible last move, all moves rejected
N1q5/n1Bnq1B1/PP1r2qR/b1P1p3/p1k5/r2qr1RN/3p1NQ1/1b1B2K1 w - - 0 1 illegal: No proof kernel
4n2r/K4Q2/pnq5/bqBRPB2/2B1qp1p/N1kP4/R2N2PN/4rnqb w - - 0 1 illegal: No proof kernel
Nn3qBk/1n2rR1P/b2p1pQ1/1r1K4/1N3P2/n1r3Pp/1N1R3B/1r1q1bR1 w - - 0 1 illegal: No proof kernel
6qq/4NnkP/P1pp1nB1/2bN4/KR1r4/qr2PBRQ/1r2p1bR/2Bq4 w - - 0 1 illegal: No possible last move, all moves rejected
6Bn/6p1/1rPb3N/p1R1P2k/q2N2bq/Nnp1r3/B1qBQRP1/2q1Kn2 w - - 0 1 illegal: No proof kernel
2RQ4/1r2bP2/R1N4q/1q1NP1np/2b1R3/2PB1p2/2qnpkNn/Br1n3K w - - 0 1 illegal: No proof kernel
5nnK/2NBPn2/5RB1/2Q1BP1q/Rp1n2k1/pNrR4/Ppbr4/1q3q1b w - - 0 1 legal: proof: d4 e5 b4 exd4 g4 c5 Bb2 cxb4 Bc1 f5 h4 g5 Kd2 Be7 Ke1 fxg4 Bg2 g3 Bh3 g4 Bf1 Bg5 hxg5 Qa5 Bf4 Qc7 Bc1 Qd8 Kd2 Kf7 Kd3 Kg6 Ke4 h5 Ke5 d5 e4 a5 c4 b5 f4 h4 c5 Kh5 g6 d3 c6 a4 c7 d2 g7 b3 Bc4 b4 Nf3 b2 Qg1 d1N Rh2 g2 Nd4 h3 Na3 g3 Qe3 g1N Nab5 g2 Bf1 a3 Nd6 Bf5 c8R Qh4 Bd3 Ne2 N6b5 g1Q Nb3 d4 Nc7 Qf1 Rf2 h2 Bc2 d3 Qc5 h1B Rb1 Nf6 g8B d2 Be6 Ng8 Bd7 Nd4 Rf3 Qh2 Rd3 Ne3 Ra1 d1Q Bd2 Qhh3 Bc3 Kg4 Rf8 Ne7 Kf6 Ng8+ Kg7 Qb1 e5 Qh5 e6 Ra6 e7 Rc6 Rd8 Rhh6 Rf8 Rhd6 Rf6 Rd5 Re6 Bh7 Kh8 Nef5 Rh6 Rdd6 Re6 Nfh6 Rf6+ Ne6 Be5 Bf5 Rd5 Nf8 Be4 Qc2 Rad1 Qb1 Qf2 Rc4 Ra5 Rd2 Ra4 Nc6 Qc5 Nd4 Bc2 Rc3 Be4 Be6 Bh7 Bf5 Bg6 Be6 f5 Bed5 Re1 Bde4 Re3 Bc2 Rd3 Nf7+
1RbN3r/R1r1P1n1/Qpr2brb/Npq1P1p1/3k2P1/B2N4/2B1Rn2/q6K w - - 0 1 legal: proof: f4 h5 g4 e5 fxe5 c5 b4 a6 d4 cxd4 b5 axb5 Qd3 h4 Qg3 hxg3 e4 Ke7 c4 Ke6 h4 f5 a4 d5 h5 g5 a5 d3 h6 d4 c5 d2+ Ke2 d1R Kf3 b6 Kg2 f4 c6 d3 a6 d2 c7 f3+ Kh3 f2 Kg2 Ra7 h7 Qd4 Ne2 Nh6 Na3 Qc5 Rh3 Nd7 Nc4 Nf5 Na5 Bh6 Ba3 Ng7 Rh2 Rc1 Kh1 d1R Rg2 Rb7 a7 Rd6 a8R Nf6 Rb8 Nd5 Rh2 Rc4 Nc1 Nc3 Bd3 Nd1 Bc2 Rc6 Rg2 Rd4 Nd3 f1Q+ Rg1 Qf6 Re1 Rdd6 Re2 g2+ Kh2 g1B+ Kh1 Bd7 c8Q Rbc7 Qa6 Bc8 Ra2 Bd4 Ra1 Ke7 e6 Qfe5 Ra2 Kf6 e7 Ke6 Ra1 Bc3 Ra2 Qed4 Ra1 Qa4 Ra2 Bf6 e5 Kd5 Ra1 Kd4 Ra2 Rg8 h8N Rdd8 Nf7 Rh8 Bc1 Rdg8 Nd8 Qaa3 Bb2+ Qac3 Ba3 Qa1 Ba4 Nf5 Bb3 Rg6 Bc2 Ng7 Nb3+ Kc4 Bb2 Bf5 Qb7 Rd7 Ra7 Rdc7 Qa6 Bc8 Na5+ Kd5 Bc1 Kd4 Ba3 Nf2+
4b1n1/1k1NPp2/8/3nB2p/PqrNq1RQ/Bb1Pb2K/bq2pr2/N4R1B w - - 0 1 illegal: No proof kernel
4k2K/1Brp2n1/1r1b2pP/1nBBP3/q5Pp/2R2rNb/1R3bN1/2QNrq2 w - - 0 1 illegal: No proof kernel
1n5b/2P2QN1/1Rb2N2/2k3pq/1qP3R1/Np1rr2q/1B1pRKP1/1qn1B1n1 w - - 0 1 illegal: No proof kernel
1rr1qkq1/2PQrq2/P1Np1Bp1/1p4b1/1NnPbR1R/BKN5/B1r5/6n1 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 c5 b4 cxb4 g5 a4 g6 hxg6 Qg4 g5 Qg3 g4 Qb3 axb3 Kd1 b5 h4 e5 a4 e4 c4 g3 f4 g2 d4 d6 c5 g6 c6 e3 f6 b2 Kc2 e2 c7 e1R h5 Nc6 f7+ Ke7 f5 Nh6 a5 Bg7 f8N Ne5 a6 Rb8 Ne6 Qg8 Nf4 Kf8 f6 Nf3 f7 Bf5+ Nd3 Re7 Nc3 b1R Rh4 Bf6 Ba3 Rc1+ Kb3 Ng4 h6 Nge5 h7 Be4 Ra2 Nc4 Rf2 Bg5 Be2 Nfe5 Rff4 Rc2 Nf3 g1Q Bf1 Qf2 Be2 Ng4 Nfe5 Nh2 Nc6 Nf3 Bf1 Qe2 Bh3 Ng1 Be6 Qg4 Bd5 Qd7 Be6 Qe8 Bd5 Qg7 Be6 Rg8 h8B Qh7 Bf6 Rh8 Na2 Qg8 Nc3 Ne3 Nf2 Qc8 Be5 Qh7 Rh6 Re8 Na5 Ke7 Nd3 Qg8 Rhh4 Rh7 Bf6+ Kf8 Nc6 Rd8 Bb2 Rg7 Ka2 b3+ Ka3 Re8 Bc1 b2 Bd5 Rh7 Be7+ Kg7 Ndb4 Rd8 Be6 Rf8 Bd8 Qd7 Be7 Rfc8 Bd8 Qge8 Ba2 b1Q Bb2 Qf1 Kb3 Qfh3 Be7 Nc4 Ba3 Qhe6 Bd8 Qg8 Be7 Qde8 f8Q+ Kh8 Qf5 Kg7 Bf6+ Kf8 Qg4 Re7 Qf5 Qd5 Qd7 Qdf7
nr4b1/N1P1KPbQ/1B2qRN1/2nB3b/pB1N2Rr/2p4k/1rP2p1b/7q w - - 0 1 illegal: No proof kernel
q2b1qrb/QPr4k/p7/3N1nPN/3R2b1/Np4P1/3BBKpq/1q2nRR1 w - - 0 1 illegal: No proof kernel
1Bq2bBR/P2krqp1/Rq6/N2r3p/1PbN1nb1/RpN3n1/2Q1P3/3bK3 w - - 0 1 illegal: No proof kernel
Rq1R3n/p4p2/br3nQ1/2N1rr2/r1b3B1/1Rqn4/P2KPBpP/k4NB1 w - - 0 1 legal: proof: f4 e5 c4 h5 d4 exd4 g4 hxg4 c5 Bd6 c6 Be5 fxe5 bxc6 Qd2 c5 Qd1 c4 b4 Ke7 e6 Kd6 b5 Kc5 e7 Kb4 e8R d5 b6 c5 b7 g5 Nh3 g3 Nf4 g2 Nh3 g1R Re5 g4 Bf4 c3 Ng5 d3 Qc2 c4 Nh7 d4 Rg5 d2+ Kd1 g3 Qe4 Ne7 Qf3 Nd7 b8B Ng6 Qg4 Ba6 Be3 Nf6 Rf5 Re8 Qh4 Re5 Qh5 Nh8 Kc2 d1B+ Kc1 d3 Rf4 c2 Bb6 d2+ Kb2 c1N Re4 Bb3 Nf8 d1Q Bh3 g2 Nd2 Rf1 Qg6 Rff5 Nf1 Q1d4+ Kb1 Kc3 Ne6 Qf8 Bg4 Nd3 Nc5 Qfd8 Bd6 Rb8 Bf8 Q8d6 Bh6 Rb7 Be3 Qc7 Bf2 Qb8 Ba5+ Rb4 Bb6 Ra4 Rg1 Kb4 Re3 c3 Rh3 Bbc4 Kc2 Ka3 Rb1 Bd5 Kd1 c2+ Kd2 Bdc4 Rd1 Kb2 Re3 Rd5 Re8 c1R Rd8 Rb1 Rc1 Bab5 Rc3 Ba6 Rb3+ Ka1 Rc8 Qd6 Ra8 Qf8 Ne3 Qc8 Rd1 Rde5 Nf1 Qb8 Nd7 Qf4+ Bbe3 Qd4 Nc5 Bc8 Bg1 B8a6 Bef2 Qe4 Rb6 Nc1 Ke1 Qd5 Rd4 Nd3+ Kd2 Qe4 Rd8 Qd5 Rb3 Qd4 Rc3 Rb6 Rb3 Qc3+
2r2B2/2R3rN/1q1pr3/pbP2KQp/k5b1/3P2bP/r3NBR1/n1R1bn1B w - - 0 1 legal: proof: f4 c5 a4 e5 b4 exf4 g3 b5 axb5 fxg3 Bb2 cxb4 Ba3 Nc6 Bc1 Nb8 e4 g5 Ke2 f5 Kf3 h5 c4 g2 c5 f4 b6 b3 b7 g4+ Kf2 g3+ Kf3 b2 e5 Nf6 e6 Bd6 e7 Na6 b8B Qb6 h3 Ng4 Ke4 f3 Ra2 f2 Qb3 Bb7+ Qd5 Nh2 Ra5 Nb4 Ne2 g1B Na3 b1R Nb5 g2 Ra4 Nc2 Ra2 Bg3 Bc7 d6 Nbc3 Kd7 e8R Na1 Bd8 a5 Kf5 Rh6 Re3 Rc8 Bh4 Re6 Ne4 Rb2 Ng5 Ba8 Qe5 Kc6 Nh7 Kb5 Be7 Bb7 Bf8 Bf3 Qf4 Rc2 Qg5 Kb4 Rb2+ Ka4 Reb3 Qa7 Rb7 Qb6 Rb3 Rb2 Rc7 Ra2 Rb2 Rce8 Nd4 Rc8 Bc4 f1B Bd5 Bc4 d3 B1f2 Be3 g1R Ne2 Be1 Bf2 Nf1 Rc2 Ba6 Rh2 Bb5 Rc1 Bf4 Bb7 Rg4 Rg2 Bg3 Qd2 Rg8 Qg5 Rg7 Rh2 Bd5 Ba8 Bdc4 Be4 Bd5 Bh1 Bf3 Rg2 Bg4+
2qQB3/6Pn/rPbKP2r/2B2n2/1bp1pbkN/1RR2p2/b2nR1N1/nN6 w - - 0 1 illegal: No possible last move
kr3N1b/P4bb1/2RpPq1r/3R4/KN1BQ1n1/pB2P1R1/b1pn2nn/N7 w - - 0 1 illegal: No proof kernel
kb3Q2/1N1n4/1r2R2R/qqP2PpB/2p1nnPK/B3R3/3q1r1p/B1Nq1q2 w - - 0 1 illegal: No possible last move, all moves rejected
2bBk1B1/2RN1n2/2N2P2/b2Kn3/1n2N1p1/r2b2PQ/1qppR2P/1qB1n1n1 w - - 0 1 illegal: No proof kernel
rb2q1Nn/3p1BP1/3rN1Nr/1r5R/3PpK2/3BR2Q/qp1rP1qB/3b3k w - - 1 2 legal: proof: g4 f5 h4 g5 b4 a5 c3 axb4 Nf3 bxc3 Ng1 Na6 Qb3 Nc5 Qa4 Ne4 Qc2 fxg4 Qd1 g3 Bh3 g4 Bf1 Ng5 hxg5 Ra4 Rh4 Ra6 Rh1 Ra8 f4 Kf7 a4 Ke6 d4 Kf5 g6 e5 a5 c5 g7 b5 a6 h5 a7 g2 Kf2 h4 Ke3 e4 Bd2 c2 Bb4 c1Q+ Bd2 b4 Qc2 h3 Ra5 g3 Rh2 Kg4 f5 b3 f6 c4 f7 c3 Ra4 b2 Nf3 g1Q+ Rf2 h2 Ra1 h1R Na3 g2 Ra2 Kg3 Qd3 c2 Ne5 Kh2 Ng6 Nh6 Ne7 Bb7 Kf4 Qa1 Nb5 c1R Ng8 Bc6 Rf3 Rd1 Nc7 Ba4 Re3 Qe8 Ne6 Qb1 Bb4 Rd2 Bd6 Bd1 Ra5 Qa2 Rb5 Be7 f8N Nf7 Ng6 Rh6 Rh5+ Bh4 Bb8 Nh8 Be5 Rb8 a8B Rb5 Bb7 Qf2+ Rf3 g1R Bh3 Qg2 Re3 Bd8 Qb3 Bc7 Ba6 Bb8 Bc7 Rb4 Bd3 Rb5 Nd8 Re1 Be6+ Kg1 Bf7 Rh2 Nh4 Rd6 Ne6 Kh1 Ng6 Bc2 Bd8 Ra1 Bh4 Bd1 Bg3 Qb1 Qc3 Ra8 Qa3 Rh3 Bh2 Qa2 Qc5 Rg3 Qf5 Rg5 Qg4 Rbb6 Qg3 Rgb5 Qh3 Rb7 Ng5 Rc6+ Ne5 Rh6 Ne6 Rc7 Ng6 Rc6+ Re5 Rd6 Rg5 Qa7 Rh5 Qa2
q1NK2Q1/1r1Bp1n1/q2pN2R/B2PB1qb/NP1qb1rb/R1p1P3/q3k3/8 w - - 0 2 legal: proof: g4 f5 b4 fxg4 h3 gxh3 Bg2 a5 Bf1 axb4 c3 b5 Qa4 b3 Qb4 b2 Qa3 b4 Qa4 Nc6 Qc2 b3 Qd1 Nb4 cxb4 Ra7 Nf3 Ra3 Ng1 Ra8 d4 Kf7 Kd2 Ke6 Ke3 Kf5 a4 Kg4 Ke4 c5 Ke5 g5 f4 h5 f5 h4 a5 c4 f6 c3 f7 h2 a6 h3 a7 Rh4 Be3 Bh6 f8B Rb8 a8N Rb7 Bg7 Nf6 Ra2 Ne8 Na3 b1Q Qc1 b2 Qd2 Qg6 Bg2 b1Q Nf3 Qa6 Nb5 d6+ Kd5 Qdb6 Be5 Ng7 Na7 Bd7 Qe1 Be8 Qg1 Bh5 Nc8 Qa1 Ra3 Qa2+ Rb3 Qba7 Nab6 Qa8 Kc6 Q8a7 Bf6 Kg3 Ra3 g4 Bf2+ Kf4 Ng5 g3 Bf3 g2 Bg4 Qa8 Be6 Rg4 Bd7 Q8a7 Ne6+ Ke4 e3 Kf3 Bg3 Ke2 Bge5 Bg5 d5 Bh4 Bd4 Qb8 Bfe5 Qba8 Qb1 g1Q Qh7 Qg3 Qg8 Qf4 Bc5 Qg5 Bcd4 Q6c4+ Bc5 Qd4 Na4 Qa6+ Bb6 Qa8 Rc1 h1B Ba5 h2 Rb1 Be4 Rh1 Rb6+ Kc7 Rb7+ Kd8 Qa6 Rf1 h1Q Rf6 Qhb1 Rg6 Qa8 Rf6 Qbd3 Rh6 Qda6
RR4B1/2B1n2r/rrp2rPB/1pn3q1/q1Q2N2/5p2/2PPNb1k/2NnK2r w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 Ke2 a5 Ke1 axb4 f3 hxg4 Ba3 g3 Bc1 g2 Na3 g5 Nb1 g4 Ba6 g3 Bf1 Bg4 fxg4 Rh6 Bd3 Rh4 Bf1 Rh8 a4 Kd7 h4 Kd6 a5 Ke5 a6 Kf4 a7 b5 g5 f5 g6 e5 h5 e3 h6 e4 h7 e2 Na3 b3 Rb1 b2 Nf3 g1R Nc4 g2 Nd4 Kg3 Ra1 b1N Na5 f4 Ba3 f3 Nab3 Nd7 Nc1 Qg5 Bd6+ Qf4 Rh6 Rh1 Ra3 c6 Bc7 Rb8 a8N g1Q Nb6 Nc3 Nd5 Rb6 Ra8 Bc5 Rh5 Qg2 Re5 Qg1 Ree8 Kh2 Reb8 Qg5 Kf2 e1R Be5 Ne7 Qe2 Rd1 Nd3 Ra1 Bh3 Raa6 Bc7 Rf8 Qf1 Rh8 Be6 e3+ Ke1 e2 Nc1 Nd1 Bg8 Nb2 Kf2 e1R Qd3 Re6 Qf1 Rf6 Ke1 Qd6 Nf4 Nd1 Nf5 Qd5 Ng3 Bg1 Qd3 Qc5 Qc4 Qa3 Nge2 Nc5 Be6 Rg8 h8B Rg7 Bg8 Rh7 Bg7 Qa4 Bh6 Bf2#
2R5/rN2qbP1/1qRprp1q/B2rB2k/1b4p1/2BQ2Pn/N1Rr1P2/b5K1 w - - 1 2 illegal: No extended proof kernel
1BN5/1p3nRn/k1P1p2N/2rRnn2/2rqp3/1B2PNPn/KQn4q/1b1R4 w - - 0 1 illegal: No possible last move
b1R3b1/3NB2p/2r2PNP/q1B1r2k/p1pbK3/2brBNQb/PR6/r1n5 w - - 1 2 legal: proof: d4 f5 c4 e6 g4 b6 e4 Nc6 f4 Na5 c5 bxc5 e5 Nb3 Bd3 c4 Be4 fxe4 d5 exd5 f5 Nd4 f6 Nf5 gxf5 d4 Ke2 Kf7 h4 a5 b4 g5 b5 c5 b6 d5 b7 d3+ Ke3 d4+ Kd2 e3+ Ke1 e2 Kd2 e1R b8B g4 h5 g3 h6 g2 Qb3 a4 Qd1 Qa5+ Nc3 Bg7 Nf3 g1B Bc7 Ne7 Qe2 Ng6 Bd8 Re8 Rh5 Nf4 Qd1 Ne2 Bb2 Nc1 Rh2 Re6 Bb6 Rc6 Ba3 Be6 Rb1 Rd8 Qb3 Re3 Rb2 Bd5 Kd1 d2 Ne2 c3 Kc2 Bf2 Nf4 d1B+ Kb1 d3 Ng6 Bg1 Rhc2 d2 Bb4 Bc4 Ba7 Rdd3 e6+ Kg8 e7 Kf7 e8N Re5 Ba3 Bd4 Qb8 Be2 Bb4 d1B Bb6 Rd5 Qg3 Bf1 Ba3 Bh3 Ba7 Nb3 Rc1 Be2 Kc2 Bef1 Bb6 Bfg2 Ba7 Re3 Bb4 Ree5 Ba3 Rd8 Bb6 Be6 Kd3 c2 Bb4 Bh8 Bd2 Rdd6 Be3 Rd7 Bd8 Bg7 Be7 Rdd5 Rf1 c1R Rff2 Ra1 Rfc2 Rd8 Rc1 Red5 Rc3 Nc1+ Ke4 R8d6 Nc7 Bh1 Na6 Rd8 Nb8 Re5+ Kf4 Rdd6 Nd7 Rdd5 Rcb3 c4 Rb8 Bc3 Rc8 B1g2 Ne1 Be4 Nf3 Rd3 B7c5 Rb6 Be7 Ba8 B7c5 Rc6 Be7 Rec5 Ke4 Rcd5 B7c5 Re5+ Kf4 Be1 Ne7 Bf8 Ba3 Rec5 Ke4 Qa7 Ng6 Bc3 Nf4 Rcd5 Bd6 Qb6 Ba3 Bd6 Bac5 Qd8 Rcb8 Bde5 Rc8 Bed4 Bb6 Ke8 f7+ Ke7 f8B+ Kf7 Ba7 Qa5 f6 Rb5 Be7 Rg5 Ne2 Kg6 Bac5 Bg8 Nf4+ Kf7 Ne6 Kg6 Nef8+ Kh5 Ng6 Re5+
B2B2R1/1bp1P1pN/3bBp1R/4q2P/b4bK1/r1Prb2R/N2Qq1k1/6bn w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 Ke2 a5 Ke1 axb4 f4 hxg4 Kf2 e5 Qf3 e3+ Ke1 e4 Qe2 Nd7 Qd1 Ne5 fxe5 Be6 Bd3 Bf5 Bf1 Bc8 Ke2 Ke7 a4 Ke6 h4 Kd5 d4 b5 h5 b3 c3 b4 a5 g3 a6 f6 a7 g2 e6 b2 Ra3 b3 Rh3 Qd6 Ra6 Ne7 Rh4 Bb7 Rh2 Nf5 Qd2 Qe5 Rh4 Bd6 Nh3 g1B Na3 b1Q Nc2 b2 Ng5 Qa2 Bh3 b1B Ba3 Rhd8 Nh7 Qb2 Bg4 Qa2 Rh3 Ng3+ Kd1 Nh1 Ke2 Qb2 Bf5 Ba2 Ra4 Bb3 Nb4+ Kc4 Na2+ Kd5 Bc5 Qc2 Rb4 Ba4 Rb1 Rd7 Rf1 Rdd8 Rf2 Rd7 Rg2 Rdd8 Rg6 Rd7 Kf1 e2+ Kg2 e1B Rh6 e3 Kf3 e2 Kg4 Bef2 Ba3 e1B Bb4 Rh8 a8B Be3 Bc5 Bg3 Bb4 Bf8 Be7 Bgf4 Bd8 Qce4 Kh4 Bd6 Kg4 Kc4 d5 Re8 Qb2 Kd3 Qc1 Ke2 Qb2+ Kf1 Qd2 Ba3 d6 Rg8 Qd1+ Kg2 Qd5 Rf7 d7 Bd6 Qd4 Qc2 Qd3 Qf2 Qd2 Rgf8 Be7 Rc8 d8R Rb8 Rg8 Qe2+ Rf3 Rc8 Bd8 Rd7 e7 Bbc6 Bb7 Ra8 Be6 Ra7 Ba8 Bb7 Qd1 Bb4 Qd2 Rd3 Bc8 Bd6 Be6 Bb3 Kh4 Ra3 Kg4 Qf2 Rh3 Ba4 Qc1 Qe1 Qd2+ Qe2+
2r1n3/pPPNK3/5b1n/P6R/bkb2p2/N4N1b/1p2b1br/2QRRnBB w - - 0 1 illegal: No proof kernel
Brb1qNR1/1pPN1Q2/5B2/1pn1qNK1/qP3r1P/B3r1b1/pq6/Rrk5 w - - 0 1 illegal: No proof kernel
2q2r1K/Br1n4/1nN2P1Q/1n3p1B/1p2R3/rbN1Pq2/2r2Pp1/kn2BRN1 w - - 0 1 illegal: No proof kernel
2B1rB2/1p5P/NK1n2b1/pn1NN3/kPpqQnR1/q2R2n1/P1rR4/3r3r w - - 1 2 legal: proof: f4 e5 c4 exf4 h4 d5 h5 dxc4 h6 gxh6 Nf3 h5 Ng1 h4 g3 h5 Qc2 h3 Qg6 h4 Qd3 h2 Qc2 h3 Qb3 Be7 Qd1 Bh4 gxh4 Qd4 Qa4+ Qd7 Qd1 Qd8 Kf2 Kd7 b4 Kc6 e4 Kb5 d4 f5 h5 a5 h6 c5 e5 f3 Ke3 f4+ Ke4 f2 h7 f3 e6 Ne7 d5 Na6 d6 Ng6 Kd5 Nc7+ Ke4 Re8 d7 Nf4 Qd4 Ka4 e7 c3 Ke3 c4 Qe4 c2 Kd4 Nb5+ Kc5 Rb8 Bb2 c1R Bg7 Rc2 Bf8 Ra8 Be2 f1Q Bd3 f2 Nf3 Ra6 Ne5 Rd6 Rg1 h1N Rg4 h2 Be2 Qh3 Nc3+ Ka3 Rb1 f1N Rd1 Ne3 Rd3 Nf5 Nd5+ Ka4 Rd2 Qa3 Bf1 Nhg3 Bh3 Rf6 Rd3 Nfd6 Rd2 Nc7 Kb6 h1R Bg7 Rh8 e8N Ncb5+ Nec7 Re8 Bf8 Rd1 Rd3 Rh6 Rd2 Qh4 d8R Bf5 Na6 Rh5 Rg8 Bg6 Bc8 Qf6 Rd3 Rhh1 Rd2 Bf5 Rg4 Bg6 Nd7 Qa1 Ne5 Ndf5 Nf6 Q1b2 R8d3 Nfd6 Nd5 Qd4+
R7/1p1p4/2pBN1b1/b2rbR1r/3qN2n/QK1Pq2P/1P3bBN/1kq1qR2 w - - 1 2 illegal: Other
n1r1b1r1/2P3Rb/RN1NpBn1/2n3p1/1r5Q/1nPrP2K/Nbp3B1/1B1k4 w - - 0 1 illegal: No proof kernel
rr1Kn1k1/bQpN1br1/B1N3Pp/1p2B2r/5B1N/Rn1b2bP/R1P2n2/8 w - - 1 2 illegal: No possible last move
1KnQ3b/2R5/3P1b2/4Bb2/5pPn/2ppBP2/rpBNknrr/RN2qR2 w - - 0 1 illegal: No proof kernel
2b1q1BB/Nr4p1/5KnR/pbRQ1N2/1rP1Pn2/1p5r/1R1PpBk1/1n2b3 w - - 0 1 illegal: Other
8/1rbp2PP/R1nBrNp1/KRQ5/N1b1b2p/B4kPq/2nr1pR1/1B2n3 w - - 0 1 illegal: No possible last move
1Nbq2B1/q2Q3R/1r2RP2/Pnp1K2P/1k1Br1Rp/2b1np2/1B1pN3/r6n w - - 0 1 illegal: No proof kernel
8/3qbb1Q/1nrB1p1b/1p1PB3/Pp1q1p2/6R1/B1PR2Kn/nNkr1R1N w - - 0 1 illegal: No proof kernel
k2qN1n1/1nB2b1P/1r2p2p/NqR2r1Q/1rnR2Pb/1p1p1PKB/8/4NB2 w - - 0 1 illegal: No proof kernel
1nn2bN1/4p1Bk/4K1br/p1P4R/3R2pr/PN2qb1r/2Pp3N/2BqR2Q w - - 0 1 illegal: No proof kernel
kr6/2R1pQ1p/nPPppK2/1N2n3/b2Brb2/1N5B/1q2Pbn1/1RNq2B1 w - - 0 1 illegal: Other
5qb1/bRKP2q1/3np2P/B2RNkp1/2rp4/N1n1P3/r1p1nqBB/1Q5R w - - 0 1 illegal: No proof kernel
1bK1B1rB/2p3Rq/5nBn/2N1PP1N/4q1p1/P3rq2/pR1Q2pk/n5Nb w - - 0 1 illegal: No proof kernel
8/1Pr1bB1n/1k2NN1K/2pqp2p/2nQn2B/4pr1b/1P1PrN2/RB4Rq w - - 0 1 illegal: No proof kernel forced: bxDB
q5k1/pB2q1P1/1Bb1pnr1/1RR1b3/N1P1Pb2/1N2N1n1/K3pp2/r1RnQ3 w - - 0 1 illegal: No proof kernel
k3b1r1/1n3RN1/1n2pp2/PpP1p2B/1b2bPrq/R4b2/NbB1K2N/1R2Q3 w - - 0 1 illegal: No proof kernel
1K1rq2N/1NR3q1/3BB2n/2qP1pb1/Q3BP2/p1bnPp2/1p1q3N/1R2r2k w - - 0 1 illegal: No possible last move, all moves rejected
Q4bbN/nB2K3/2pNpp1R/RbP3n1/q1p2q2/3RPB2/2P2kb1/Br1r4 w - - 0 1 illegal: No proof kernel
2bR2nr/r3k1Np/RQ3q1P/BP3K1p/p2N1P2/1n3N1B/1p1b3q/3B2rr w - - 0 1 illegal: No possible last move
1B3q2/1rNnp1R1/rN2B1bn/1PB1P1p1/1r6/p3N2q/p1r1k1PK/2b2R1Q w - - 0 1 legal: proof: c4 b5 a4 bxa4 f4 d5 cxd5 g5 Qc2 gxf4 Qf5 h6 Qg5 hxg5 Kf2 Kd7 e4 Kd6 b4 Ke5 h4 Kd4 b5 f5 d6 c5 d3 a5 d7 f3 Kg3 c4 h5 f2 h6 c3 h7 a3 Nh3 a4 Nf4 c2 Nd5 f4+ Kh2 a2 Nb6 a3 Nc3 f3 Bf4 c1R Nd1 Ra6 Ne3 Nh6 Rb1 Qc7 d8N Bg7 Ne6+ Kc3 d4 Kd2 d5 Qc3 d6 Rc2 Be2 f1Q d7 f2 d8B Nd7 Bc4 Rf8 Bb3 Ke2 h8Q Bb7 Bdc7 Rb8 Bcd6 Bc8 Bb4 Rb7 Nc7 Be5 Bg3 Bf4 Bc5 Qd3 Be6 Qb3 Nd1 Bc1 Qa1 Qf3 Ne3 Qf8 Bgd6 Qd1 Qh8 f1R e5 Rf4 Rf1 Rd4 Rf7 Rb4 Rg7 Qd3 Ra1 Bb2 Rf1 Bc1 Ncd5 Qdf5 Bb8 Qh3+ Kg1 Nf6 Nc7 Bd7 Qh7 Be8 Qh8 Nd7 Qh7 Nf5 Qh6 Bg6 Qh4 Qf3 Qh1 Nh6 Kh2 Qh3+
2b2b2/3P2B1/1qN1kb1n/K4r1q/2Rr2RN/1PQp3P/bpN2npp/RB6 w - - 0 1 illegal: No possible last move
n3BQ2/1RrP2b1/q4pN1/r3pN2/Bp2kqP1/pP3bqN/1nqR2B1/K7 w - - 0 1 illegal: No proof kernel
3N2N1/1PNB1R1q/rQ2p3/ppr5/r1rk1B1q/1P2RbR1/4bP1p/5nnK w - - 0 1 legal: proof: e4 b5 d4 c5 h4 g5 a4 gxh4 a5 f5 Ke2 fxe4 Bg5 Bg7 Bc1 cxd4 Ke1 Be5 Ra2 Bc7 Ra1 Bb6 axb6 Ba6 Bg5 Bb7 Bc1 Bc8 g4 Kf7 c4 Kf6 b3 Ke5 b7 a5 c5 h5 g5 d5 g6 d3 g7 d2+ Ke2 h3 c6 h2 c7 h4 Qe1 d1R Ra4 e3 Kf3 e2 Kg2 d4 Bd2 d3 Rg4 h3+ Kf3 Nh6 g8N Ra6 Rg5+ Kd4 Kg3 Nf5+ Kf3 Rh5 Bb4 d2 Rg3 Ne3 Nc3 Rc5 Nd5 Ra1 Bg2 d1R Bd2 Nf1 Bf4 Nc6 Qb4+ Rc4 Qd6 e1Q Qg6 Bd7 c8R Rdc1 Nc7 Raa4 Qh6 R1c2 Qe6 Qb1 Ne2+ Kc5 Rg1 h1B Nd4 h2 Rg7 Rc1 Rf7 Qh7 Qe3 Bf5 Ra8 Bd3 Nde6+ Kb4 Rb8 Kc3 Qb6 Qd4 Nd8 e6 Rc8 Qf6 Ne7 Qfh4 Ng8 Ng3 Re1 Nf1 Re3 Rc5 Ra8 Kd4 Rb8 Rcc4 Ra8 Qf6 Rb8 Nd2+ Kg3 Ne5 Bc6 Nef3 Bd7 Ng1 Rc8 Bf3 Ra8 Bfe2 Kg2 Nf1 Kh1 Qfh4 Nc6+ Kc3 Nge7 Bd1 Rg8 Bg4 Nd8 Kd4 Rg5 Bde2 Ng8 Bh5 Rgg3 Bhf3+
2b1Bb2/Bp3n1R/2B1qnQ1/3p2rN/2KPP1Pr/5Np1/3p1k2/1NRqrr2 w - - 0 1 illegal: No possible last move
4k1b1/pB2b1pN/N5r1/1rq2K1R/1Qb1R1N1/Pp1nPB2/bB1pn2P/4q3 w - - 0 1 legal: proof: f4 e5 b4 c5 d4 exd4 g4 h6 g5 hxg5 bxc5 gxf4 Be3 f3 Bf4 Qb6 Bc1 Qd8 Kf2 f5 Kg3 d5 Kf4 b5 c4 f2 c6 d3 e3 d2 a3 d4 c5 d3 c7 b4 c6 Na6 Nc3 Nf6 Na2 Qe7 Qe1 d1B Bg2 f1B Bb2 Be6 c8N Bg8 c7 Rh6 Nf3 Bdb3 Rb1 Ne4 Ng5 Rg6 Rg1 Nc3 Nb6 Nc5 c8B Rb8 Nd5 Rb5 Bf3 d2 Qh4 Be2 Nh7 Bec4 Rg4 Qg5+ Ke5 Be7 Bb7 Ne2 Re4 Qh5 Rg1 f4+ Rg5 Nd3+ Kf5 Ra6 Nc3 Rg6 Na4 Ba2 Nc5 b3 Na6 Nc3 Be2 f3 Qg4 f2 Bf3 f1Q Qh4 Qh6 Rh5 Qe1 Qf4 Ne2 Qd6 Ndf4 Qc5 Nd3 Ndf6+ Kd8 Ng4 Ke8 Rg5 Qh3 Rh5 Qhg3 Bd5 Qd6 Qb4 Ne5 Ba8 Qc5 Bb7 Nd3+
n5r1/Q3Rqk1/3pbnq1/r3qB2/R1KPNBpP/2P1Np2/2Np4/2n2R1r w - - 0 1 illegal: No proof kernel
1KBrRB2/2B4n/2qq3r/r3b1Rp/3pQp1R/rN1n1P1p/2k1PP1N/5r2 w - - 0 1 illegal: No proof kernel
b3KN2/p3pp1P/BkN2r2/4qr1R/5p2/1nB1RP2/2rnrP1r/qQ4BR w - - 0 1 illegal: Other
qb1bkN2/4Pp1Q/2r1B3/1R1N1P1b/1b4qp/n2p4/BB1NnpP1/2Rb3K w - - 0 1 illegal: No proof kernel
R1B1nK2/1Q3nr1/2P3NP/q2pBnrn/1B1q3p/pN1P3n/N2pbR2/4k3 w - - 0 1 illegal: No proof kernel
1N1B1b2/q1b2B2/BR2p1N1/1Pp1RnQ1/3bPp1n/3p1N2/1k2Pn1K/qb5r w - - 0 1 illegal: No proof kernel
q1B1b3/Rpr3Rr/p1QpNnrk/1P1nB3/4q3/3n1PPn/KB1R1p2/7N w - - 0 1 illegal: No proof kernel
2rRrNrn/3Nk1p1/7R/1B1qB3/pbpBbKPP/q2q2R1/pPQ3q1/8 w - - 0 1 illegal: No proof kernel
1qBkqNb1/4prPK/1pn1B1BQ/2p5/1q4n1/1Pb1P3/1R1p3N/1qRn1N2 w - - 0 2 illegal: No possible last move
3KN1N1/1Q1n4/b1rrr2p/2B4p/rNp1P2P/1rRB1Pn1/2qrp3/1kBR4 w - - 0 1 illegal: No proof kernel
3B1k2/Q2nRN2/n3RPr1/2n2npB/1bnn2P1/1R1ppB1p/2bPN1r1/5K2 w - - 0 2 legal: proof: e4 a5 b4 axb4 h4 g5 e5 c6 c3 bxc3 e6 fxe6 h5 e5 Ke2 e4 Ke1 Qa5 Nh3 Qf5 Ng1 Qg6 hxg6 Bg7 Ne2 Bh6 Ng1 Bf8 g4 h5 a4 b5 f4 e5 a5 d5 f5 d4 g7 c2 a6 c5 f6 c4 a7 h4 Bb2 c1N Ra5 c3 Qa4 e3 Qc4 e4 Qd3 b4 Re5+ Ne7 g8B c2 Rd5 e2 Rh2 b3 Nh3 Bf5 Rh1 Na2 Rg1 c1N Ba3 b2 Bg2 Nb4 Nc3 b1N Nb5 Nd7 Re5 Na6 Re6 Nb3 Nf4 Nbc5 Qe3 h3 Rf1 Rh6 Bf3 Rg6 Kf2 e1N Ne2 Rd8 a8R Nc2 Rb8 Rc8 Bb4 Nba3 Ba5 Nc4 Bd8 Rc6 Rb1 Rc8 Qa3 e3+ Kf1 Bd3 Rb7 Rb8 Reb6 Nf5 Rb3 Be7 Bf7+ Kf8 Re6 Be4 Rd3 Rc8 Ra7 Rb8 Nd6 Rb1+ Qc1 Ra1 Rb3 Na4 Rb1 Rg7 Rb5 Ndb8 Bh5 Nab4 Ree5 Rg6 Ra6 Nd7 Kg1 Bd3 Qf1 Re1 Nf7 Bc5 Nc3 Re2 Qa1 Rf2 Ne2 Rg2+ Kf1 Be7 Qe1 Bd6 Qg3 Bc5 Rc6 Na6 Rb3 Bb4 Re7 N4c5 Qc7 N2a3 Nd6 Bc2 Qa7 d3 Nf7 Nb5 Rce6 Nbd4
n1KB1k2/2Qb1pR1/1bBPb1Rb/3N2p1/4brP1/1N2Bp1P/5pbR/n1r5 w - - 0 1 illegal: No possible last move, all moves rejected
Q1BR1q2/p4qPr/p3r3/1Bq1pn1K/P1R1p2N/2rn2Rp/1N3kP1/b1B5 w - - 0 1 illegal: No possible last move
N1rrr3/2K2p1p/q3Np2/3pN3/1pQ1BbP1/1B3PRR/1P3rnr/k3nR2 w - - 1 2 legal: proof: d4 c5 h4 cxd4 a4 g5 Rh2 gxh4 Bd2 b5 Rh1 b4 Bg5 Ba6 Bf6 Bb5 axb5 exf6 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 e4 a5 f3 d3 b6 a4 Kb5 Kd4 c4 h3 b7 h2 e5 a3 c5 d2 c6 a2 c7 Nh6 Kb6 Nc6 b8R Nf5 e6 Ne5 e7 Ne3 e8B Qc8 Ne2+ Kd3 Na3 Bh6 Qc1 d1R Nc4 Bf4 g3 d5 Ba4 Rd2 Bb3 Ng2 Nd4+ Re2 Rb1 a1R Ne6 R1a5 Ra1 Rd8 Rb1 Ne1 Bh3 Ng2 Bg4 Ra1 Bf5+ Re4 Rf1 h1R Bg6 Rh2 Rh1 Qd7 c8N Qa4 Kc7 Qa5+ N8b6 Qa6 Rc8 Rb8 g4 Rf8 Na8 Rd8 Bh5 Re2 Rg1 Rf2 Bg6+ Ke2 Rf1 Nd3+ Ne5 Nde1 Qc4+ Kd2 Rc1 Re8 Rc2+ Kd1 Be4 Rc1 Re2+ Rc2 Rg1 Kc1 Rh1 Kb1 Rd2 Rh6 Rh3 Ka1 Rg3 Rh2 Rh3 Rc1 Rd1 Nd3 Rf1 Nde1 Rg1 Rcc2 Rf1 Rce2 Rg3 Rh8 Rg8 Rd8 Rg6 Rhe8 Rh6 Rc2 Qc6 Rc5 Rhh3 Rb5 Qc2 Rbb8 Qc4 Rbc8#
r3rR1N/r3Q3/2pr2n1/1pPppB2/2rBb3/2Nk2pq/1P4RP/1R2K1Bn w - - 1 2 legal: proof: e4 h5 d4 e5 g4 hxg4 a3 exd4 e5 f6 a4 fxe5 a5 b5 Qe2 Bc5 Qd1 Bb6 axb6 Qe7 Be3 Qf6 Bc1 Qd8 f4 Kf7 c4 Ke6 c5 Kf5 b7 Ke4 f5 g5 f6 a5 f7 d3 f8R d2+ Kf2 a4 Nh3 c6 Ng1 a3 Bg2+ Kd3 Re8 g3+ Kf1 a2 Qg4 Na6 b8B Nb4 Bf3 Ne7 Nh3 Ng6 Qe6 g4 Nc3 Qh4 Rb1 a1R Rg1 R1a7 Ng5 Qh3+ Rg2 d5 Qf6 Bf5 Qe7 Be4 Bc7 Rf8 Bd8 Rf6 Rf8 Rd6 Ba5 Re8 Nf7 Rea8 Kg1 Re8 Rf2 g2 Nh8 Rea8 Re2 d1R+ Kf2 g1R Be3 Rc1 Bh1 Rc2 Bd4 Rg2+ Ke1 g3 Bg1 Rf2 Bg2 Rff6 Bf3 Rfe6 Rg2 Rc1+ Bd1 Rc2 Bg4 Rc1+ Nd1 Rc3 Bf5 Rc4 Qh4 Ree7 Nc3 Ree8 Qe7 Na2 Ne2 Nc3 Bb4 Nd1 Bc3 Nf2 Bd4 Nh1 Nc3 Qg4 Ne2 Qh5 Nc3 Qh3
5kbq/p5n1/2N1p1nr/R1Pp4/Bp1PR1RN/P3Q1p1/4nB1B/bK1b1b2 w - - 0 2 legal: proof: e4 f5 b4 fxe4 g4 c5 h4 cxb4 f4 b5 f5 Na6 h5 Rb8 h6 Rb6 g5 Rf6 gxf6 Qc7 Bg2 Qf4 Bh3 Qxh6 Bf1 Qh2 c4 h5 c5 d5 a3 g5 d3 e6 Nc3 b3 Be2 g4 Kd2 h4 Bb2 b4 Kc1 e3 Qe1 h3 Nb5 Nc7 Nf3 Rh6 Nbd4 Ne7 Nh4 Bg7 f7+ Kf8 Nc6 Ba6 Bd1 e2 Rg1 Ne8 Kb1 Ng6 Bd4 b2 Bf2 Bf6 Rg3 Ng7 Ba4 Bc3 Qd2 e1N d4 Nd3 Qe3 Ndf4 Ra2 Bf1 Rg2 Ne2 Rg1 Nh5 Ra1 Kg7 f8R Qb8 Re8 h2 f6+ Kf7 Re7+ Kf8 f7 h1B Rb7 Bf3 Rb5 Qe5 Ra5 Qh8 Kc2 Ng7 Re1 Ng3 Rg2 Bd1+ Kb1 Ne2 Nb8 Ke7 f8B+ Kf7 Bd6 Kg8 Bh2 g3 Nc6 Kf8 Qc1 Ng1 Re4 Ne2 Qe3 Be1 Ka2 b1B+ Ka1 Bbc2 Rg4 Bc3+ Ka2 Ba1 Rg1 Bg2 Re1 Bd3 Nf3 Bf1 Nh4 Ba6 Kb1 Bb5 Ne7 Be8 Nc6 Bf7 Qf4 Ng1 Re4 Ne2 Qe3 Bg8
4n2N/1k3nrB/3p2K1/p1B1pR2/2pRPN2/1P1PpRbb/3QpBr1/2n2r2 w - - 1 2 illegal: No possible last move, all moves rejected
1n1BR3/qQN5/ppp2B1p/2b4p/1PpRK3/P3r1Pb/2b4n/NBR1b2k w - - 1 2 legal: proof: h4 d5 c4 dxc4 h5 g6 Rh4 gxh5 Rh3 Nd7 Rh1 Nb8 d4 Qd5 e4 Qd6 d5 Qd8 Be3 Bf5 Qc2 Nc6 Qe2 Qd7 Qc2 Rd8 Bg5 Nb8 Bc1 Qc8 Qd1 Rd6 Qd3 Qd8 Qb3 Bc8 Qd1 Rb6 d6 Rb5 Bh6 Re5 Bc1 Rd5 f4 Bd7 f5 Bxf5 exd5 Bc8 Ke2 Kd7 Ke3 e5 b4 f5 g3 h6 a3 b6 Rh3 c6 Qa4 e4 Nf3 f4+ Kd4 e3 Rh4 e2 Ng1 e1B Bd3 f3 Ke4 f2 Qa6 f1B Bg5 Bh3 Nd2 Qc7 Qb7 a6 Bb1 Be7 Ngf3 Nf6+ Kf4 Rf8 Nb3 Ng4+ Ke4 Nh2 Nfd4 Rf3 Nb5 Rd3 Bf6 Bf8 Qa8 Qa7 Nc7 Bg4 Qb7 Bd1 Ke5 Be7 Rd4 Bc2 Kf4 Kd8 Ke4 Bh3 Bh8 Bf8 d7 Ke7 d8B+ Kf7 d6 Kg6 d7 Be7 Rd6+ Kg5 Rd4 Kg4 Bf6 Bf8 Ra2 Bc5 Na1 Bf1 Rb2 Kh3 Rb3 Kg2 Rc3 Bd1 Rc1 Kh1 Bde7 Bb3 d8R Bc2 Re8 Bh3 Bd8 Re3+
2nr1rbb/2B5/NR2QrR1/5rp1/B1q1p1nB/2nqPPr1/KNb3P1/4kN2 w - - 0 1 illegal: No possible last move
1q1k1NrQ/4p3/qNbp1r2/Rqq1B3/2BPb1nK/R2Nb3/P1B1P2n/4qn2 w - - 0 1 illegal: No proof kernel
2Rrqb2/1r1p2BP/1rBP1QNK/4B3/2n1q3/3np1nk/bR1RP3/b1qNr3 w - - 0 1 illegal: No proof kernel
B6r/2n1n3/Pp6/bPq1bprk/NB2bP1n/nNqR1q1N/2BQ1r2/1K2R3 w - - 0 1 illegal: No proof kernel
2b3N1/5bp1/R1Rn1PNK/q1r2NP1/2Bq2Bp/bn1r3P/Qb1q1k1B/1n4r1 w - - 0 1 illegal: Other
1B4K1/1n6/p1NBq2N/q2bn2R/P1rp1k2/r1P1bn1Q/3P1rB1/q1Rq1R1b w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 c5 g5 cxb4 g6 hxg6 Bh3 g5 Bf1 g4 Kf2 Ke7 h4 Kf6 e4 Ke5 h5 g5 a3 f5 h6 b5 c3 d5 h7 g3+ Kf3 d4 Qb3 g4+ Ke2 f3+ Kd3 f4 Qa4 b3 Rh4 f2 Qa5 f3 Bh3 f1B+ Ne2 f2 Qa6 b2 Qb6 g2 Rh6 g1N Bg2 b4 Kc4 g3 Qa6 b3 Rh3 Nd7 Rh1 Nf3 Qg6 Nh6 Qg4 Nc5 Qh3 Nf7 Rg1 Rg8 h8B+ Bg7 Rh1 Bb7 Rg1 Rf8 a4 a6 Na3 b1Q Rh1 b2 Nc2 Qa5 Nb4 Rac8 Rh2 Qc2 Rh1 b1Q Ba3 Qbb2 Rc1 Qa1 Rh2 Qd1 Nc6+ Kd6 Bb4 Bh6 Bf6 Be3 e5+ Kc7 e6 Kd6 e7 Ba8 Bh1 g2 e8R g1Q Bg2 Rc7 Re7 Rb8 Ba3 Rb3 Re8 Rc8 Rf8 Bb7 Bb4 Ra3 Rh1 Qh2 Bh4 Qf4 Bg3 Qe5 Rh8 Rc7 Rh5 Ba8 Bh4 Qf5 Bg3+ Ke6 Rg1 Nb7 Bbd6 Rc8 Bb8 Kf6 Bgd6 Kg6 Bh1+ Bg2 Rf1 Kf6 Ng3 Qe6+ Rd5 Rc7 Nf5 Kg5 Nh6+ Qf5 Rg1 f1R Rb5 Rf2 Rf1 Rc8 Re5 Kf4 Rc5+ N7e5+ Kd5 Qe4+ Ke6 Qd5+ Kf6 Qe6+ Kg7 Rc7+ Be7 Nf7 Re5 Rc8 Bed6 Rc7 Kg8 Rc8+ Nd8 Rc4 Nc6 Nc5 Nb4 Bd5 Nc6 Nb7 Rh5+ N3e5 Rg1 Bgf3 Bg2 Bfe4 Bf1 Bh1 Bg2 Qb6 Bf8 Qc7 Rf1 Nf3 Re5 Qb6 Bfd6 Qa5 Rh5+ N7e5+
1nB1rq1B/R2p3P/Qb1Pb2n/1NbN1r2/n1B2b2/rK2p1b1/R3Pkb1/4N3 w - - 0 1 illegal: No possible last move
2kB2n1/1R3NBp/n3Kr1n/p2Q1N2/rbqP1r1P/P2r1br1/4R3/1bn2BR1 w - - 0 1 illegal: No possible last move, all moves rejected
b1b3nK/p2bbN2/1qR1P3/2r3pB/P1b3q1/br2R3/k1rRN1PB/1Nn3Q1 w - - 0 1 illegal: No proof kernel
4b1Nb/kp1p1Q2/1n1P4/r1q1N1Br/1P2n3/RrB2R2/P1qNr1bb/K2b3B w - - 0 1 illegal: Other
qn1q3K/n5RB/1rBr1N1b/3RBbpr/1pn3Pk/bP2PQ2/1n5r/2R1N3 w - - 0 1 illegal: No proof kernel
2N5/3kp1nq/3Bn2b/1K1R2PN/N1B1n1bp/1nQ3rr/1R2Pb1P/1b2b1bB w - - 0 1 illegal: No proof kernel
2nkn1Rq/1q3nNp/q4prR/1n1n1P1P/4KBB1/QBrP2pN/1N6/3bb3 w - - 0 1 illegal: No proof kernel
R3n3/P4B2/bq1bN2r/1RpN1N1n/r2npBnQ/bqK1p3/2PnP2B/1k6 w - - 0 1 illegal: No possible last move, all moves rejected
1q1N1nN1/1pB1pr2/1K1BnR1P/1Pq1P3/1b5n/q2B2Q1/nnr1bpR1/k1N5 w - - 0 1 illegal: No proof kernel
r4Rq1/rQP1p3/3qn1q1/BpN2Bp1/q5P1/n3PRrB/7b/1NkbqK1N w - - 0 1 illegal: No proof kernel
1n3b2/N2b3K/1n4Bp/bR1QpnR1/br1Pp2q/1rk1P1Bb/6qP/NB5R w - - 0 1 illegal: No proof kernel
1b4q1/3R1p1r/kbp2P1Q/q3b2R/3RpP1b/7B/nNP1n1NB/K3Bbrn w - - 0 1 illegal: Other
1qrRb2B/2Q1pR1n/b4q2/pBpb4/KnNrP3/2P1R1P1/1N1b4/k2rb2N w - - 0 1 illegal: No proof kernel
b1R3q1/bQ1pbN2/1r1RB3/1p2B3/qbn1br2/2PP1R1N/1Pkp2Kn/4B2n w - - 0 1 illegal: No proof kernel
Bn1Rn3/6BN/pN1n4/P3r1qQ/b1P2bq1/1Rp2Rr1/B1Pqbpk1/K3b3 w - - 0 1 illegal: Other
k3bRNn/3n1B1b/r1p2QrB/7p/1PP2qpq/K1N3P1/R2Rn1nb/6Nr w - - 0 1 illegal: No proof kernel
2knq1r1/q1pN4/1R1B2n1/b1PqBQ2/r2PB1R1/1p5K/bP5p/Nq1nNr2 w - - 0 1 illegal: No proof kernel
5n1K/bR2p1q1/3rQB1R/p1q4b/1nr3pN/kP2PNP1/3n3r/bB1Rr1B1 w - - 0 1 illegal: No proof kernel
1q2R2R/bBrb3N/rB1p3R/4pP2/nnqn2r1/1b1PP3/2p1knQ1/4NNK1 w - - 0 1 illegal: No proof kernel
2R3nB/3p1bBB/K3p2b/1p6/k2PRR2/r3Pq2/nPbr2r1/2NQrNnq w - - 0 3 illegal: No proof kernel
2Q2br1/kPB1q2p/2K1p3/1bnp1n2/1qN1RB2/1n1rPR2/1RrPN3/qq1B4 w - - 0 1 illegal: No proof kernel
1b1nr3/2p2q1K/3b1Np1/1Bk1P2R/4bp1n/3R1P2/NrPB1b1n/rQ1q1N1B w - - 0 1 illegal: No proof kernel
5r1n/Rr1b2B1/2p1rPRn/B1PB1pb1/1p4q1/1R1K3Q/k3nPn1/NNrn4 w - - 0 1 illegal: Other
2qN4/K2b1q2/p2N1pr1/qPQ2pqn/Pb3k2/1RRqnPr1/1B6/B2qNB2 w - - 0 1 illegal: No proof kernel
4qb1r/p2p1brk/2K4b/b2rp1RB/P1P3rN/N1n5/1Q1P1Rn1/3bBN1R w - - 0 1 illegal: Other
5b2/3b3B/1N2pp2/2BbPp1r/n2Q1PKB/R1nbN3/n2rk1Pq/Nr1n2R1 w - - 0 1 illegal: No possible last move, all moves rejected
2b2N2/1B2rQ2/n1pqbR2/pR2bK2/Pr6/2P3bn/pnBB1Pr1/1nN3kN w - - 0 1 illegal: No possible last move, all moves rejected
1nr1Nn2/r2p1n1b/5p2/p2b3K/qP3BQ1/1r1B1RBn/P3bPk1/b1R3NN w - - 0 1 illegal: No proof kernel
1bn5/1q3p2/3nNPkb/1P3r2/QNB3pK/2pRBqrR/1rRN2Pb/3br3 w - - 0 1 illegal: No proof kernel
6qr/QN2bp2/2rq1RB1/2r1R1p1/1N2BPP1/1RqnrKB1/b2P1pn1/3q1k2 w - - 0 1 illegal: No proof kernel
bRR1n3/bnP5/NR3NBB/5b1p/n3pp1K/2qQPP2/1qp5/Nrr3qk w - - 0 1 illegal: No proof kernel
1kb2Nq1/2pp1rp1/2PPpBqN/2q3b1/bB2nR2/RKR1n3/rQ3PBr/8 w - - 0 1 illegal: No proof kernel
1N2K2B/pn5N/RNn2r2/pk1q4/1pp1PR2/PPRb1Q2/1r6/q1b1qBrn w - - 0 1 illegal: No proof kernel
4q1bB/3B1pnN/3b2n1/q3p1R1/bR2PPrp/1NK1k1P1/1Rnpq3/rQ3B2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 Kd2 h5 a4 d5 c4 Kd7 f4 Kc6 c5 e5 a5 b5 g3 h3 e3 d3 a6 h4 a7 d4 Qe1 Kd5 c6 Ke4 c7 h2 Ra2 b3 Ba3 b4 Nh3 b2 Be2 b3 Qg1 Nd7 Bb4 Ngf6 Ra1 Nh5 Ba3 Qe8 Qf1 Ng7 Rg1 h1Q Bd6 Rg8 Ba3 Bd6 Ra2 Nf8 Bb4 Bd7 c8B Ba4 Bd7 Ng6 Ba5 Qg2 Bd8 Qf3 Bf6 Qh1 Na3 b1B Nc4 b2 Na5 Bbc2 Nb3 b1N+ Ke1 Qh2 Rb2 Na3 Kd2 Bb1 Qc1 Nc2 Re1 Qg1 Bf1 Kf3 Ng5+ Kf2 Kd1 d2 Nh7 Qg2 Be6 Qd5 Bd7 Kf3 Re2 Qa5 Rg2 Rb8 a8R Ke4 Ra6 Ra8 Rb6 Nh5 Bh8 Ng7 Ke2 d1Q+ Kf2 Ba2 Qb1 d3 Rg1 d2 Ra6 Qh5 Rc6 Qf5 Ke2 Qh3 Kd1 Qg2 Ra6 Kf3 e4 Ke3 Nd4 Be6 Nb3 Bf5 Rh1 Bb4 Rf6 Bd6 Re6 Ne7 Rg6 Qf2 Rg5 Ng6 Rg1 Qa7 Nc1 Nd4+ Qc2 Bb3 Rg4 Ne7 Ra2 Rb8 Bfb5 Nh5 Ng5 Qa5 Ra4 Rc8 Rb4 Ba4 Nb3 Bh7 Qa2 Rg6 Bd3 Bg8 Nh7 Ng7 Bc4 Nb5 Kc2 Nd4+ Kb2 Rg5 Rb1 Ng6 Bf1 Rc1 Qa1 Nc2 Kc3 Qe2 Rb2 Rh5 Qa2 Ra1 Qb1 Bb5 Rg5 Ba4 Rf5 Rg5 Bg2 Qaa6 Bf1 Rg4 Rg5 Qa5
1nN2bnQ/1Rq5/1Pbprpq1/5B2/1r1b1RNq/5pN1/k2P1Pp1/1rB1K1B1 w - - 0 1 illegal: No proof kernel
1N1r1n1N/R1rB2B1/1bp1b1rQ/b3qppB/3N2P1/4P2p/k1P2R1n/1qK4n w - - 0 1 illegal: No proof kernel
6NN/2P1q3/2n1p1p1/p2Rb3/rn2Q3/P1KBp2q/2RBBrPk/1bn1bR1r w - - 0 1 illegal: No proof kernel
1b2r1B1/1K1bQRnN/Np1n4/1n1p2q1/1P1PppRr/3P1RB1/1Bkn1b1r/8 w - - 0 1 illegal: Other
3nBr1R/1rpppn2/R1q2kbb/1P2Nbn1/1NP1p3/r1BP4/3bBR1Q/K7 w - - 0 1 legal: proof: e4 f5 a4 fxe4 h4 b5 h5 bxa4 h6 gxh6 Ba6 h5 Bf1 h4 g4 Kf7 f4 h5 b4 a5 c4 h3 g5 a3 f5 h4 d3 a2 Kd2 h2 Kc2 h3 Kb2 a4 f6 a3+ Kc2 Nh6 b5 Nc6 Bb2 Rb8 Qf3 Rb7 g6+ Ke6 g7 Nf7 g8B Bh6 Bh7 Rf8 Nc3 Qe8 Kb3 Ncd8 Re1 a1R Rd1 a2 Nge2 Rb1 Nc1 a1B Be2 Ke5 Rhf1 h1N Ka2 h2 Qh3 Nf2 Nb3 h1B Nd4 Bf3 Bg6 Bg4 Nd5 Bf5 Bc3 Rb3 Nc6+ Ke6 Qh4 Nh3 Ne5 Nhg5 Qh2 Bb2 Kb1 Bc1+ Ka1 Bd2 Bgh5 Nd6 Nb4 Qg6 f7 Kf6 Rf3 Rb8 Bd4 Bb7 Bc3 Bd5 Rf2 Rb7 Rg1 Rh8 f8R+ Bf7 Rg8 Be8 Rh1 N6f7 Rg7 Rf8 Rg8 Nd6 Rh8 N6f7 Rg1 Kg7 Rb1 Qc6 Rb2 Kf6 Ra2 Nd6 Ra6 Bg6 Nc2 Bh7 Be8 Bg6 Nb4 N6f7 Bh5 Nd6 Bg4 N6f7 Be2 Ra3+
1n2K2N/1Bqb1r2/b3pb2/B1kN4/r1b2Ppn/N2pP1B1/1p1R1bPq/3R1Q2 w - - 0 1 illegal: No proof kernel
1N4n1/1pB3p1/r1P2R2/q4rP1/RPnKnnpp/qb1R1Nn1/4Q3/2kBb2B w - - 0 1 illegal: No proof kernel
2nK3r/NrRR1Bpp/2q2kb1/2bpn2P/n7/1QB1q3/p2RnPP1/2n1N1N1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 b5 e5 bxa4 e6 fxe6 Ne2 e5 Ng1 e4 Ke2 Kf7 h4 a5 b4 d5 c4 e5 b5 e3 Kd3 a3 b6 e4+ Kc2 a4 c5 e2 c6 e1Q c7 e3 Kd3 e2 b7 a2 h5 a3 Rh4 Na6 b8N Qe8 Be3 Ne7 Rh1 Qc6 Qb3 Kf6 Nd2 Ra7 Ndf3 Rb7 Bd2 Bh3 Ba5 Nc8 Bc3 Qc1 Rb1 a1N Ne1 a2 Rb2 Be6 Rd2 Bf7 Rh4 Bg6+ Re4 Na7 c8R Qa3 Qc2 Nb3 Rc7 Nc8 Qd1 Kf5 Ree7 Nac5+ Kc2 Qa7 Red7 d3+ Kb2 Qab6 Ka3 Nc1 Qb3 Na4+ Qb4 Qcb5 Nc6 Qe3 Na7 Ke6 Bd4 Qc6 Bc3 Nc5 Qb5 Kf5 Kb4 Na4+ Ka5 Ke6 Rb2 d2 Qb3 d1N Rd2 Kf5 Nc2 e1N Bb5 Nf3 Ne1 Ne5 Bd3+ Kf6 Bf5 Ne2 Be6 Ndb2 Bf7 Nd3 Qd1 Rb2 Qb3 Qcc5+ Ka6 Ndc1 Kb7 Qd6 Rc4 Qa6+ Kc7 Qc6+ Kd8 Rb1 Qc2 Rb7 Qb3 Qcb6+ Rcc7 Qe6 Bd4 Qc6 Bc3 Bc5+
2r5/k1B3QN/p1p3r1/2Prn1pq/BN1q1pn1/b1n2b2/Pr1B1PR1/1R2K1N1 w - - 0 3 legal: proof: e4 d5 c4 dxe4 g4 h5 c5 hxg4 Qa4+ b5 Qc4 bxc4 d4 Kd7 h4 Kc6 b4 Kb7 b5 f5 d5 e5 h5 e3 h6 a6 d6 e4 d7 f4 h7 c3 b6 c6 Bd3 c2 Na3 g3 Be2 g2 Rb1 Nf6 Rh4 Ng4 Bd1 e2 Be3 c1N Nf3 g1R+ Kd2 e1Q+ Kc2 Ne2 Nh2 Nc3 Bd2 e3 Rh6 e2 Rd6 g5 Nf3 Rg8 h8Q Rg6 Rd3 Bg7 Qf8 Qf6 d8B Qd4 Bc7 Nd7 Qe7 Rh1 Ng1 Nde5 Rg3 Bd7 Kc1 Rc8 Rg2 Bf5 Nc2 Be4 Qd7 Bf3 Nb4 Qf1 Qf7 e1R Qf6 Ka8 b7+ Ka7 b8N Qe2 Nd7 Rhh8 Qf7 Rhd8 Nf8 Rd5 Nh7 Bh8 Qg7 Rf1 Kb2 Re1 Bb3 Qd1 Ba4 Re2 Nh3 Qh1 Ng1 Qh6 Kc1 Qh5 Be1 Rb2 Bd2 Ne2+ Kd1 Nc3+ Ke1 Rc2 Rg3 Nc4 Rh3 Nd1 Qf6 Qd3 Qf7 Bb2 Bb5 Ba3 Rh2 Qd4 Ba4 Nce5 Qg7 Nc3 Rg2 Rb2
5n1B/Krqk1n1r/3p1R2/RP2b1N1/bnp2p2/3r1P2/pqPR2Nn/3QNB2 w - - 0 1 illegal: No possible last move, all moves rejected
Nb5B/k2r2B1/r2Rp3/r4qpp/2R1q1qP/pNn2P2/bQ1NB1Pn/4Kq2 w - - 0 1 illegal: No possible last move, all moves rejected
Q1b2N2/Bb2N2r/1PN2p2/1pq1B1rk/n3p1Rn/p1nRPB2/1P5K/1nq3b1 w - - 0 1 illegal: Other
rNq1B1b1/R1p3QP/pb4nN/2pq2B1/PbqrRR2/2P4p/k7/1qK3nB w - - 0 1 illegal: No proof kernel
3nb1qN/np1r4/2B2qbb/2p1R1pP/2RR1nk1/rpN1KNP1/2P1QB2/7b w - - 0 1 illegal: No proof kernel
5K1b/Rrrpnpr1/2pP2Q1/q2BP2n/NB2Bq2/Nb4N1/1pb2P1R/1b1k4 w - - 0 1 illegal: No proof kernel
rN1N3b/p1pr2n1/BB1kq3/1n6/b2pn1P1/PpBK4/1N1P1q1R/1R2bb1Q w - - 0 1 illegal: No proof kernel
n3r2q/2Nr2p1/P1rp3b/N1Rbp3/4nB1p/k1B3RQ/2B1n1PP/r2q1K1R w - - 0 1 illegal: No possible last move, all moves rejected
k3nnN1/N1bp3n/bp1p3p/bP2r2P/2rq4/1P1RB2K/4bQn1/N2R1BB1 w - - 0 1 illegal: Other
RbnkB3/2pP1pp1/N1P3K1/2NpBP2/bNr1nBR1/2p2rn1/1r6/1Q1q1b2 w - - 0 1 illegal: Other
5qR1/2p1p2B/K2b2pP/1bkpB1N1/3NP1Q1/2p1q1b1/nBNr2P1/r2nnR2 w - - 0 1 illegal: No proof kernel
1kN2n2/r2p1R1q/6p1/B2K1Np1/Rp3pB1/1qP1bNPB/3Pq1r1/3nQr1b w - - 0 1 illegal: No proof kernel
2qk1b1N/1pp1b1B1/r5p1/4r2b/p1RbNbPp/1PQ3NR/2PB1K2/Rn4n1 w - - 2 3 illegal: No possible last move, all moves rejected
6RQ/p1k3b1/Pb4bn/1K1pn2N/pNBPp1qn/5rB1/pR2P1r1/B1b1N3 w - - 0 3 illegal: No proof kernel
1n6/n2r1p2/3r1P1q/1B1p1pn1/1pQ1R3/N1bnp2k/b1KPR1RP/B1B2N1r w - - 0 1 illegal: No proof kernel
2BRb3/Q7/1rp3p1/1qb2Nn1/4K1N1/1RPpbn1p/1bRP2pP/nrB2N1k w - - 2 3 legal: proof: f4 e5 a4 exf4 g3 fxg3 Nc3 b5 Nb1 bxa4 e4 Ke7 Ke2 Kf6 Kd3 Ke5 b4 Kf4 e5 a5 b5 h5 b6 d5 b7 f5 e6 a3 e7 d4 e8R c6 Bh3 g2 Re6 a4 Rf6 a2 Rd6 h4 Ne2+ Kf3 Bb2 a3 Qc1 f4 Rd1 Nd7 b8N Ra6 Rh6 Qa5 Re1 Ngf6 Qd1 Rb6 Rh7 Ne4 Rh6 Ng5 Rh7 Bc5 Be6 h3 Nbc3 Qb5+ Bc4 g6 Rc1 a1B Rg7 a2 Nd5 Kf2 Ne7 f3 Nf5 Rh7 Ba3 Bb2 Rg8 a1B Neg3 Rh5 Nf1 Kg1 Ree8 f2 Re3 Kh1 Rd8 Rh8 Qh5 Rg8 Qh7 Ne5+ Ke2 Rf8 Qa7 Bd7 Rb3 Nef3 Kd3 Be8 Nd7 Rf7 Ne5 Rfb7 N1e3+ f1N N5g4 Nf7 Ke4 d3 Be6 N7g5+ Kf4 Bbd4 c3 Bb2 Rc2 Rb8 Nd5 Ne3 Bc8 Nc4 Nde3 Na5 Rb4 Nb3 Nf1 Ba1 Bc1 Bb2 Bd7 Bf2 Bc8 Na1 Rb3 Bfe3+ Kg3 Qc4 Qa2 Bba3 Rb1 Rb4 Rbb2 R8b6 Rb1 Bed4 Kf4 Qb5 Qf7 Rb3 Qa7 Rb4 Rbb2 Rb3 Ra2 Rb1 Rab2 Bg1 Rb4 Bb2 Rb3 Nh7 Ke4 Bgf2 Qd7 Bfe3 Qa7 Nhg5#
k2Kb1b1/3pnN1N/4Rpp1/3r2r1/qpb1BB2/b1rR1PP1/R1P2p2/nQ4B1 w - - 0 1 illegal: No proof kernel
2n2b2/1bN3r1/KpR3B1/nB2p1P1/3qppN1/p1NQ1P2/Pr1BR3/r3r1kq w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 cxb6 Bc4 b5 Bf1 b4 c3 Kd7 Ke2 Kd6 g4 Ke5 g5 Kf4 f3 Kg3 d4 h5 d5 e5 c4 a5 c5 f5 d6 b6 c6 f4 d7 a4 c7 b3 Qd3 h3 Qc3 h4 Qd2 a3 Qd4 h2 Kd2 h3 Kc3 b2 Kc4 Ne7 Kb5 Nbc6 Bd2 Bb7 c8B Na5 Bc4 Kg2 Qd3 Ra6 Bf7 Rh6 Bg6 Ba8 Bb7 Rh5 Bd5 Ra7 Bc6 Rb7 Ka6 Nc8 Bb5 Rh8 Ne2 Rh6 Nd4 Kf2 Rc1 h1R Ne6 h2 Bb4 Rf1 Rc6 h1Q Be1+ Kg2 Nc3 Rh2 Rc1 b1R Rc2+ Kg1 Rb2 Qe7 d8N Qc5 Nf7 Qd4 Nh6 Rg7 Ng4 Ra1 Nc7 Rg2 Re2 Rgf2 Re3 Rb2 Bd2 Rfe1 Re2 Bb7#
Nr5R/2pKqP1Q/6rB/n1P1p1pB/2p3P1/3k2Bb/Nrq2p2/1rbn1NR1 w - - 0 1 illegal: No proof kernel
3bn1k1/1p1p2P1/b2qp1b1/5Rr1/pPprb1Rn/1N5N/BNP2RQB/2q1K3 w - - 0 1 illegal: Other
1bR2K1k/4nr1B/R1BpN1p1/2bP2Qp/p3bq2/1pp1NP1r/P3n3/2R1B2r w - - 0 1 illegal: No possible last move, all moves rejected
R1bk1bq1/4bKNp/r4nRp/NpB4B/3p4/pP2n3/PprP3n/NR4Q1 w - - 0 3 legal: proof: h4 c5 e4 f5 b3 fxe4 h5 c4 h6 gxh6 Ba3 c3 Bb2 cxb2 Ke2 a5 Ke3 e5 g4 b5 f4 d5 c4 a4 f5 Bb7 f6 Nd7 f7+ Ke7 g5 Ba6 c5 Ngf6 g6 Bb7 g7 Qc7 g8N+ Kd8 c6 Bb4 f8B Bd6 Be2 Nb6 Nf3 Qg7 Nd4 Bc8 Bh5 Ra6 Na3 Bb4 Nac2 a3 Nf5 d4+ Kf2 e3+ Kf3 e4+ Kf4 e2 Ke5 e1N Rg1 e3 Rb1 e2 Na1 Bc5 Rg6 Nbd5 Nge7 Ne3 Qc1 Rg8 Qd1 Qh8 c7+ Ke8 Nc6 Nf3+ Kf4 e1B Na5 Bf2 Qg1 Nh2 Ke5 Bh4 Ng7+ Kd7 Be7 Bb4 Bc5 Rd8 Ba7 Bf8 Bb6 Ke7 Ba7 Rdd6 Bc5 Kd7 Be2 Rdc6 Bh5 Bb7 c8R Rc7 Ba7 Rc2 Ra8 Bc8 Bc5 Kd8 Bd6 Nd7+ Ke6 Bhe7 Kf7 Nf6 Bc5 Qg8#
2RB4/2q1R1r1/b3ppQ1/k2p2bN/BpPK1N1b/NP2P1pr/5pr1/3n2Rn w - - 0 1 illegal: No proof kernel
5q2/1r1B1PQ1/5Kb1/3qRqRQ/PN3BqP/1q3bN1/r4p2/2qk1B2 w - - 0 1 legal: proof: c4 h5 b4 d5 cxd5 a5 Qc2 axb4 Qa4+ Bd7 Qd1 Bc8 d4 c5 g4 hxg4 Qd2 cxd4 Qe3 e6 Qb3 Bd6 Qd1 Bc7 e4 f5 d6 e5 dxc7 Nf6 Bb2 Nc6 Ba3 Ne7 Bc1 f4 f3 Nf5 exf5 e4 Kd2 e3+ Ke1 Ne4 fxe4 Qf6 Nd2 Qg5 Nb1 Qd8 Ke2 Kf7 Kd3 Kf6 h4 Ke5 f6 g5 f7 b5 a3 f3 Ra2 Kf4 e5 b3 e6 f2 e7 g3 e8Q b4 Qg8 g4 Rc2 b2 Be2 g2 Bd2 b3 Qg7 g3 Qf1 Bb7 c8B Qd5 Bcg4 Rhb8 Nf3 g1Q Qh3 g2 Qf8 Qc1 Rh2 g1Q Nc3 b1B Ne1 b2 Bd7 Qg4 Bf1 Qdf5+ Kc4 d3 Kd4 Bf3 Rg2 Rb7 Ne4 Ra5 Ng3 Ra4+ Bb4 d2 Qg7 e2 Rc5 Bd3 Qh2 b1Q Re5 d1Q Nc2 e1Q Rg1 Ra5 Bd6 Qb3 Nb4 Qc8 Qg2 Qf8 Qh8 Qed2 Qh5 Q1c1 Bb8 Rc5 a4 Rc2 Bc7 Ra2 Ne4 Qh3 Qg7 Qdd1 Rg5 Qhg4 Bd6 Bc2+ Kc5 Ke3 Kc6 Be2 Ng3+ Kd2 Kc5 Be4+ Kd4 B2f3 Rb5 Qh7 Ke5 Ke1 Bc7 Qdd3 Rc5 Kd1 Kf6 Qb5 Rcf5 Q5d5 Bf4 Bb1 Re5 Qhc2 Bdb5 Qcc8 Be8 Bg6 Beb5 Q8c2 Bd7 Qcf5+
4r3/3n2K1/PBrrb3/3kqPN1/1n1P4/1b2nrQN/2Q2NBb/R5Rq w - - 0 1 legal: proof: e4 f5 exf5 d5 b4 a5 c3 d4 cxd4 axb4 f4 h5 g4 c5 gxh5 e5 d3 exf4 Nh3 c4 Ng1 cxd3 Kd2 Ke7 a4 Kd6 h4 b5 a5 g5 h6 b3 Kc3 b2 h5 g4 h7 f3 a6 f2 h6 g3 Be3 b4+ Kc4 g2 Rh3 d2 Qa4 d1B Qa3 Nc6 Kd3 Qa5 Ke4 Be6 Qa2 Rd8 Rh2 b3 Nd2 b1R Bg5 b2 Rh1 Rc1 Qc4 Rd7 Bd8 b1R Bb6 Nf6+ Kf4 Rg8 h8Q Nb4 h7 Rb3 Qg7 Rf3+ Kg5 Bb3 Nh3 g1Q+ Bg2 f1N Kh6 Ne3 h8N Qf1 Qd3 Rc6 Qc2 Be7 Qg6 Re8 Kg7 Qd5 Qg5 Qe4 Qh4 Kd5 Nf7 Bd6 Qg5 Bh2 Qg3 Qf4 Ne4 Qe5 Nef2 Rdd6 Nfg5 Qg1 Bf1 Qg2 Rg1 Qh1 Bg2 Nd7+
r2qb3/QP3Rq1/1q1PP2Q/q2R4/1k1N3q/1nb2B1R/3B1N2/2q1nbK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Bg4 Ra3 Be6 Ra1 Bc8 b4 gxh4 d4 a5 Ba3 axb4 Qd2 c5 Bc1 c4 Qd1 Ra6 Ba3 Rc6 Bc1 Rc5 dxc5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Ke7 g4 h5 e4 f5 g5 f3 c6 Kd6 c7 Kc5 g6 b3 g7 c3 d6 b2 b6 f4 b7 h3 e5 c2 e6 h2 Qd2 h4 Qd5+ Kb4 Ra3 h3 Rd3 Nh6 g8R Nc6 Qa2 Bg7 Rd5 Ne5 Be2 Nf5 Bf1 Bd7 c8Q Nd4 Bc4 Nb3 Rd3 Be8 Rc3 Nd3+ Kf1 f2 Qd7 Ne1 Bd2 c1Q Rd3+ Bc3 Na3 b1Q Nb5 Qa3 Rg6 Qaa5 Rd5 Rg8 Rg3 Qh7 Rg6 Qg7 Rf6 Rf8 Rf7 Rh8 Ke2 f1B+ Kf2 f3 Nd4 Qab6 Be2 Rf8 Ke3 f2 Qa7 Rg8 Bf3 Rh8 Ne2 Qa5 Ng3 Rg8 Rg1 h1Q Ne4 h2 Rg3 Qg1 Rh3 h1Q Qe7 Qhh2 Qf6 Qhg3 Qh6 Qgh4 Rdf5 Be2 Re5 f1Q+ Nf2 Ba6 Rh5 Qc4 Rd5 Qcc7 Nb5 Qcb6+ Ke2 Q1g5 Kf1 Rh8 Qg6 Qge3 Kg1 Qeh6 Nd4 Bf1 Bc1 Qd2 Qg5 Qc2 Bd2 Qc1 Rf4 Bg6 Qg4 Qdf6 Qh5 Ra8 Qh6 Qfd8 Rff5 Qge7 Rf4 Be8 Rf6 Qf8 Rf7 Qg7+
3R4/b1RN2nP/bQKbN3/4B1rb/1rP1nq2/2Q1B1P1/1p2B1k1/b2r4 w - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 a5 e4 f5 exf5 axb4 Bh6 b5 Be3 g5 axb5 g4 Bc1 g3 Bd2 h5 Bc1 h4 fxg3 h3 Kf2 hxg2 Ke2 Rh3 Ke1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 e5+ Kf3 e4+ Kf4 b3 c4 d3 h4 e3 h5 d2 b6 e2 h6 e1B b7 d4 Ke4 Kg5 h7 d3 f6 Ne7 f7 Nd7 b8B Qc7 Kd4 Ba6 Ne2 Kg4 Rh6 Kf3 Rc6 Rg8 Nbc3 Nc5 Ne4 Qf4 Qc2 d1R Be5 g1B+ Be3 d2 Rc7 Rb8 Qc3 Nf5+ Kd5 Rb4 Kc6 Ng7 Nf6 Ne4 Nd7 Bd6 f8Q Bef2 Qf6 Be1 Nc1 Bef2 Bd3 Kg2 Be2 Be1 Nd3 Bef2 Bb6 Bd4 N3c5 Bge3 Ne6 Bg1 Qc1 Bb2 Ra5 Ba1 Rd5 b2 Qc3 Bd4 Ba5 Ba7 Bb6 Nf5 Qd8 Rg5 Be3 Ng7 Qb8 Re1 Qb6 d1B Bd3 Bh5 Be2 Rb1 Nb8 Bf8 Rd8 Bd6 Nd7 Rd1
1n5k/Bb2K3/1p2nrq1/n2R1qN1/r1r1N1N1/1PP1Q1R1/1PnQ4/4n1B1 w - - 0 1 legal: proof: e4 a5 h4 g5 d4 gxh4 d5 f5 exf5 c6 Bb5 cxd5 Be2 Qb6 Bf1 Qb3 axb3 d4 f4 e5 c3 e4 Kf2 a4 Ke1 a3 Nd2 a2 Bc4 Bd6 Bd3 Be5 Bb1 axb1Q fxe5 Ra4 Qc2 Ra2 Qd1 Ra8 Kf2 Kf7 g4 Kg7 e6 h5 g5 d5 g6 e3+ Kf3 e2 Kf4 e1N Kg5 b6 e7 d3 e8Q h3 Qb5 d4 Ne2 h4 Ng3 h2 Ra2 h3 Rf1 h1Q Qc5 h2 Qc2 Qg2 Ra3 h1R Ne4 d2 Rg1 d1N Qd2 d3 Ra5 R8h6 f6+ Kh8 f7 Ne3 f8B Nc4 Bd6 Nf6 Qce3 R1h4 Rd5 Nh5 Bc7 Ng7 Kf6 Ne6 Ke7 Ra2 Ng5 Ra4 N3e4 Bb7 Bf4 Qf3 Rg3 Na5 Bc7 Qf5 Bf4 Na6 Bb8 Rc4 Ba7 Nb8 Qde2 d2 g7+ Kg8 Qg2 d1N Qgd2 Rg6 Nf3 Kh7 g8N Kh8 Nfg5 Rf6 Nh6 Qg6 Ng4 Qd3 Qf3 Ne3 Qf4 N3c2 Qfe3 Qf1 Nd6 Rh1 Qef2 Rf3 Qdd4+ Rf6 Be3 Nd3 Qd2 Qff5 Nde4 Ra1 Bg1 Raa4 Q4e3 Nde1
qBn3rN/nnQrPn2/2p2BP1/1R1b4/4R3/QN2Kn2/P7/qk3rR1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d6 Ra4 d7+ Ke7 Rh3 Ra7 Rh1 Ra8 d4 c6 e3 b3 d5 Bh6 Bd3 Bg7 Bc2 bxc2 d6+ Ke6 Ke2 Bc3 Kf1 Ba5 Kf2 Bb6 Ke1 Bc7 dxc7 Ke7 Kf2 Ke6 g4 Ke5 g6 Ke4 g5 h5 g7 b5 g6 f5 Qf1 h4 Qe1 Kd3 e4 f3 e5 b4 e6 f4 e7 b3 Qe6 h3 Be3 c1N Qe5 Kc2 Qd4 h2 Qe5 b2 Bd2 Ra7 Qg5 Nd3+ Kf1 f2 Ke2 f1N Qd5 Nc5 Qg2 Nh6 g8R Nf7 Nf3 Nb7 Rg1 h1Q Qg3 Nh2 Ng5 f3+ Ke3 f2 Bc3 f1R Bf6 Nf3 Nd2 b1N Nb3 Na3 Re1 Nb5 Qd6 Qe8 d8B Nd7 Qa3 Nb6 Rf8 Bh3 c8Q Bg2 Bc7 Rg8 Bb8 Qd8 Qd7 Nc8 Qc7 Qh8 Re2+ Kb1 Re8 Qd1 Rd8 Qc1+ Rdd2 Qb2 Rd5 Qa1 Rf5 Ra8 Rd5 Nba7 Rb5 Bh1 Rc2 Rd8 Rc4 Rd7 Rcb4 Ne1 Ra4 Bd5 Rd4 Nf3 Re4 Nfd6 Nf7 Qf8 Nh8 Nf7 Bc3 Ncd6 Bf6 Qc8 Qc5 Na5 Qa3 Qb7 Rg3 Kc2 Qc8 Kb1 Bc7 Rb8 Rg2 Qa8 Rg1 Nab7 Qd8 Ndc8 Bh2 Ncd6 Qb6 Rf8 Qd8 Ndc8 Bb8 Re8 Qc7 Rg8
2N4Q/2RbqQ2/2N1P3/1r2q3/2pP1q1b/N1b5/kBKBRnPr/3rq3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Bg4 Ra3 Be6 Ra1 Bc8 b4 gxh4 e3 a5 Nc3 a4 Nb1 f3 Kf2 Nc6 Be2 Na5 bxa5 fxe2 Ke1 Kd7 d4 Kd6 Kd2 e1Q+ Kd3 c5 a6 h5 e4 f5 a7 f4 b6 a3 b7 h3 b8N f3 Qe2 f2 Qf1 h2 Bg5 a2 Nc3 h4 Nh3 Bd7 Rg1 h1Q Bc1 Qh2 Ng5 h3 Nb1 Nh6 Na3 Qe7 Kc2 Ng4 Nc6 Rb8 a8Q Rb5 Bb2 Qhe5 Rc1 a1B Qc4 f1Q Nf7+ Kc7 d6+ Kb6 Qd5 Qff4 Rf1 h2 Rf2 h1R Re2 R8h3 Qc4 Bh6 Qh8 Nf2 Qe6 R3h2 Qf5 Qd5 e5 Bg5 e6 Qde5 Qfh7 Bh4 Q7g8 Be8 d7 Ka6 d8B Bd7 Nd6 c4 Ba5 Rg1 Nc8 Rf1 Bd2 Rg1 Nb4+ Ka5 Rb1 Ka4 Qf7 Rf1 Bbc1 Bc3 Nc6 Rc5 Rb7 Rb5 Rc7 Rg1 Nb4 Rgh1 Kb1 Kb3 Nc6 Nd1 Bb2 Rg1 Kc1 Ka2 Kc2 Nf2 Re4 Qe2 Re3 Rd1 Re4 Qf1 Re2 Qe1
1Qbr3r/1R5K/5k2/bnPQ1r1B/1P4rr/QN4Rn/bP4Bp/2b1N3 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a3 f5 exf5 b5 Be3 g5 Bc1 b4 axb4 Bh6 Na3 Bg7 Nb1 Bf8 f4 e5 c4 e4 h4 gxh4 Bd2 Qe7 Bc3 Qe5 fxe5 dxc3 Ke2 Ke7 Ke3 a5 Kf4 h5 Kg5 d5 Kg6 d4 g4 a4 g5 d3 c5 a3 e6 a2 Bh3 e3 Qc2 d2 Bf1 d1B Bh3 e2 Rh2 e1R Bg2 h3 Qf2 h4 Qf4 c2 Qf2 c1B Qe3 Nh6 Qf3 Ng4 Qa3 Rf1 Rh1 h2 Nd2 h3 Nb3 Nc6 Nf3 Nf2 Ne1 Nd4 Rg1 h1R f6+ Kd8 f7 Ke7 Bf3 Nb5 Rg3 Be2 Bg2 Bc4 Nd4 Bh6 Nb3 Bf4 Rd1 a1R Rd5 Rd8 Kh7 Bc7 g6 Ba5 g7 Bc1 g8Q Kf6 e7 Rhg1 e8B h2 Rh5 Nh3 Rd5 Rf5 Rd7 Rgf1 Ra7 R1f4 f8Q+ Bf7 Rb7 Rg4 Qa4 Ra3 Qd6+ Bfe6 Qb8 Bd5 Bh5 Bf7 Na1 Ba2 Qd5 Re3 Qa3 Ree4 Nb3 Rh4 Rd7 Reg4 Rg7 Ra6 Rc7 Re6 Ra7 Ree8 Rb7 Rh8#
2N1NqR1/1QPn1pp1/5Qpq/Q2Kn3/2P4p/2q3bk/1BP1R3/2B2rn1 w - - 0 1 illegal: Other
1r1N2Q1/q1P1qR2/3Q2pp/1B5P/R1ppN1P1/2n4q/1bBpb3/QK4k1 w - - 0 1 legal: proof: b4 a5 f4 b5 a3 e5 Nh3 Ra7 Ng1 exf4 a4 c5 axb5 c4 Kf2 Rb7 Ke1 Rc7 e4 Qf6 c3 Qd8 Ke2 Rc5 bxc5 Na6 Ba3 Nb4 cxb4 Bb7 Bb2 Ba6 Bd4 Bc8 Be3 fxe3 Ra4 exd2 Ra2 Qc7 Ra1 Qd8 h4 Ke7 g4 Kf6 b6 Ke5 b7 Kf4 b8Q+ d6 c6 Kg3 h5 f5 e5 d5 e6+ f4 e7 g6 e8B a4 b5 d4 b6 h6 b7 a3 Qd6 a2 b8Q Bd7 c7 Ne7 Nh3 Bf5 Ng5 Nd5 Bb5 Qe7+ Ne6 Bc2 Qc1 Bd3+ Kd1 Kf2 Nd8 f3 Nc3 Be2+ Kc2 Rg8 Rh2+ Kg1 Ne4 f2 Rh3 Nc3 Rf3 Rh8 Bg2+ f1Q Rf7 Qe1 Bf1 Q1h4 Qca3 Qh3 Kb2 Bf3 Bd3+ Bd1 Bb1 Be2 Bc2+ Kg2 Raf1 Rg8 R1f5 Kg1 Rc5 Rh8 Rc6 Rg8 Ra6 Rh8 Ra4 Rg8 Bb1 a1Q+ Kc2 Rh8 Qb2 Qa3 Qa1 Qc5 Kb2 Qa7 Bc2+ Bf1 Nb7 Qf6 Qc5 Bd6 Qc6 Qe7 Qb6 Bb4 Qd6 Rg8 Qf8 Rh8 Qg7 Rb8 Qg8 Bc5 Nd8 Bb4 Qa3 Be2 Qa2 Ba3+ Ka1 Nd5 Kb1 Bb2 Qa1 Nc3+
R2N2n1/1bK5/2B2r1b/3q1br1/r1kn1NPR/1Rn1bQP1/P4qB1/Q1q5 w - - 0 1 legal: proof: f4 d5 h3 g5 d3 e5 Na3 g4 hxg4 d4 Bd2 exf4 Rc1 a5 b4 axb4 c3 b3 cxd4 b2 d5 b1Q Rc2 Qa1 Bc3 Qc1 Ba1 Qxa1 Kd2 Kd7 e4 Kd6 d4 h5 Kd3 b5 g3 c5 Rh3 f5 Nf3 h4 Ne1 b4 Kc4 f3 Kb5 f2 Bd3 f1R Rc1 c4 Qf3 c3 Rb1 c2 Rb3 c1B Ng2 f4 Nc2 Nc6 Rh2 Qg5 Kb6 h3 Ba6 Bd7 Bb7 Be3 Rh1 h2 e5+ Ke7 d6+ Ke6 Kc7 Ra4 Ba8 Rh5 Bb7 Bc8 d7 Bh6 d8Q Qc1 Qf8 Qf5 Qg7 Rg5 Qh8 Qe4 Qf6+ Kd5 e6 Rf2 e7 Bf5 e8B Kc4 d5 Nd4 d6 Qd5 d7 Rf1 d8R Rf2 Rd1 h1B Bec6 Rf1 Ra8 Rf2 Ra3 b3 Nb4 b2 Rb3 b1N Re1 Nc3 Re2 Bd2 Re7 Be3 Rh7 Bf8 Rh4 Bh6 Na6 Rf1 Nc5 Rf2 Ne6 Rf1 Qe4 f3 Nd8 f2 Qh8 Rg1 Qf6 f1Q Nf4 Qf2 Qb1 Rf1 Qa1 Qe6 Bg2 Qd5 Bc6 Bc8 Qf7 Bb7 Bh3 Be4 Bg2 Bf5 Qe7 Rd1 Qe4 Rd2 Qf3 Rb2 Ra3 Rb6 Rb3 Rba6 Bd7 Re6 Bc6 Rf6
b2b4/n3N1B1/4qP1R/qb3nQ1/q1R2BQP/PK1N4/3r2N1/2rnrkr1 w - - 0 1 illegal: No possible last move
2r1b2k/2nBNn2/P1P1NNRb/1R1q4/1n3q2/rQ5K/1b1q1P2/Bb3rQ1 w - - 0 1 legal: proof: e4 e5 b4 c5 d4 cxb4 g4 exd4 e5 a6 Bxa6 f5 e6 fxg4 Bf1 h6 Bxh6 Ra5 Bc1 Ra8 a4 d5 c4 g5 h4 b5 e7 Kf7 e8N g3 a5 b3 h5 g2 c5 b2 c6 b4 h6 d3 h7 d4 Qd2 b3 Nc3 b1N Qa2 d2+ Ke2 d1R Kf3 d3 Kg3 g4 Rh5 d2 Bb2 Na6 Nb5 Nc3 Be2 Nh6 Rc1 Nb4 Ba3 Bd7 Rc2 Rf1 Bc1 d1Q Qa4 b2 Nbc7 b1B Ne6 Ncd5 Qb3 Qd2 Rg5 Nc7 Nf6 Be8 Rg6 Q8d5 Nf3 g1B Rb2 Bh2+ Kg2 g3 a6 Rc8 Kh3 g2 Nfd4 g1Q Nf5 Qgg5 Bg4 Be5 Ne7 Qgf4 Bf5 Rg8 h8Q Bc3 Nc5 Bg7 Bd7 Kf8 Qh7 Nf7 Qh4 Be5 Qhg3 Bh6 Qg1 Bd4 Rc2 Bc3 Bb2 Be5 Ba1 Bb2 Rc3 Rg7 Rcg3 Rg8 R6g5 Rg6 Re5 Kg7 Ne6+ Kh8 Rh5 Rg5 Rg4 Re5 Rg6 Ree1 Re5 Rc1 Rf5 Rc5 Rfg5 Ra5 Re5 Ra3 Rh5 Qde4 Rb5 Qed5
B2rq3/Qr3bk1/QPRr1b1r/3Q3q/1N1n2b1/n1B2RPP/K4N2/2r3r1 w - - 0 1 legal: proof: f4 e5 b4 exf4 a4 h5 e4 d5 g3 g5 Qf3 h4 Qg2 h3 c4 hxg2 cxd5 b5 Ra3 g4 Rf3 gxf3 axb5 Qd6 Kd1 Qe7 Ke1 Qd8 Kd1 c5 Kc2 a5 Kb2 f5 d4 Kf7 h3 a4 d6 f2 e5 f3 e6+ Kg7 d7 c4 d5 f4 d6 a3+ Ka2 c3 b6 c2 e7 Rh6 e8R Na6 b5 Ne7 b7 Nf5 b8Q Nb4+ Kb3 a2 b6 a1R Re5 Qe8 d8Q R1a7 d7 Rb7 Bd2 c1R Re6 Be7 Nc3 Bf6 Rc6 Nc2 Na2 Na3 Nb4 Nd4+ Ka2 Rd1 Bb5 f1R Qa7 f2 Bc3 f3 Ne2 g1R Nc1 Rfe1 Qa6 f1Q Ncd3 f2 Qc7 Re6 Qb8 Rd6 d8Q Bg4 Qba7 Rc1 Bc4 Rc8 Bd5 Qd1 Bg2 f1B Nf2 Bd3 Bf3 Bg6 Rh2 Re6 Qd5 Bf7 Be4 Rd6 Rh1 Rg2 Re1 Qf3 Re3 Rgg1 Rd3 Qd1 Rf3 Rcd8 Qe6 Nb3 Re3 Rbd7 Rc5 Bgh5 Ba8 Rb7 Rc6 Nd4 Qd5 Qg4 Rd3 Qh4 Re3 Bg4 Rf3 Qh5
2B1N2b/P1b5/1b2nR2/qnB1n1B1/PQ3R2/1N2rnQ1/r1P3q1/1bK2kb1 w - - 0 1 legal: proof: d4 a5 g4 c5 e4 cxd4 a4 h5 b3 f5 exf5 hxg4 Qf3 b6 b4 b5 bxa5 b4 Qa3 bxa3 Kd1 Kf7 f4 Kf6 h4 d5 a6 g5 a7 e5 h5 g3 h6 e4 h7 e3 Bb5 d3 Bd7 d4 Nc3 e2+ Kd2 e1N Nce2 a2 Rh2 g2 Bc6 g4 Nh3 g1B Ba3 g3 Bg2 Nh6 Bc1 Nd7 Bb2 Nf3+ Kd1 d2 Rc1 a1B Nc3 Qa5 Rb1 Nde5 Bf1 g2 Ba6 Bd6 Nf2 Rb8 Bc1 Be6 Na2 Nhf7 Rh3 Nd8 Rh4 Rb2 Bc8 Bc7 Rg4 Rg8 h8Q+ Rg7 Qh5 Re7 Qh2 Bg8 Qg3 Ne6 Nc3 Re8 Nd3 Ra2 Nc5 Be3 Rb6 g1B Nb3 Re7 Ke2 d1N Nb5 Re8 Nd6 d3+ Kf1 d2 Ke2 Re7 Ra6 Beb6 Ne8+ Kf7 f6 Nc3+ Kf1 Nb5 Ke2 Bc3 f5 Bb2 Rf4 Bc3 Ba3 Bcd4 Bc5 Bc3 Qf2 d1Q+ Ke3 Qc1+ Ke2 Qe3+ Kd1 Qe2+ Kc1 Qf1+ Qe1 Qg2 Qe3 Rd7 Qe1 Rd3 Be3 Bcd4 Bd2 Re3 Qg3 Kf8 f7 Ke7 f8B+ Kf7 Ng7 Kf6 Bc5 Bc3 Qf2 Kg5 f6 Ba1 f7 Bd4 f8Q Bf7 Rf6 Kg4 Rf4+ Kh3 Ne8 Kh2 Qg3+ Kh1 Qg6 Kh2 Qd3 Kg3 Qg6+ Kf2 Qg3+ Kf1 Qe7 Nd7 Qd6 Bh8 Qd4 Ne5 Qb4 Rd3 Rf6 Bg8 Bg5 Re3 Rf4 Nd8 Nf6 Ra3 Nd4 Ba2 Ne6 Bb1 Ne8 Ra1 Nd4 Ra2 Bf8 Bc5 Raf6 B5b6 Nb3 Ne6 Bd6 Na3 Bc5 Nb5
BqK1b3/P1BQbR2/b1r5/1P3N2/2k1Bb1R/3n3n/1nbrNP2/1q3n1Q w - - 0 1 illegal: No possible last move
qbb1B1n1/knP3Q1/1qn5/1P1N1r1r/rq1q2RK/3BP3/N2R4/2Q1rR2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 Ba3 exf4 axb5 Be7 b6 Bc5 b5 Bf8 Bb4 axb4 Kf2 d5 c4 Kd7 g4 h5 g6 f5 e3 f3 Kg3 b3 g5 f2 c5 d3 g7 f4+ Kh3 b2 b7 Kc7+ Qg4 d4 c6 Kb6 g6 d2 Rh2 d1N Qf5 d3 Nd2 b1Q Qd7 h4 Ra7 f3 Qf5 Bd6 Ra2 Nb2 Qd7 Rh5 Ra4 Nc4 Ne4 d2 Ra1 d1Q Ne2 Rg5 Nc1 Qd4 Bd3 f1R Nc3 f2 N1a2 Re1 Nd5+ Ka7 Qg4 f1R Rd2 Q8b6 c7 Rff5 Qd1 Na5 Qc1 Nbc6 b8R Qbb4 Rb1 Bc5 Ra1 Nge7 g8B Nb7 Bf7 Ng8 g7 Ne5 Be8 Nc6 Kh2 h3 Rb1 Rh5 Kg3 h2 Ra1 h1Q Rb1 Be6 Rd8 Bc8 Rd6 Qhe4 Rg6 Qh1 Rg4 Rhg5 Ra1 Nba5 Bf1 Kb7 Qb1 Nf6 g8Q Rc1 Ndc3 Qa7 Bh5 Nd8 Qe6 Ng8 Bc4 Qa6 Na4 Ba7 Be8 Bb8 Qh6 Qab6 Qg7 Ra6 Qb2 Ka7 Bd3 Qa8 Kh4 Ndc6 N4c3 Nb7 Nd5 Rcf1 Re1 Ra4 Qc1 Rg1 Ree2 Rgf1 Rf2 Re1 Rf1 Rh5+
r1R1Q2N/P2B1P1n/5b1N/n2Q3b/2rb1b2/3bb1nb/P1Nn3k/K2B2R1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 f4 fxe4 g4 a5 bxa5 h6 f5 Qc7 f6 Qe5 Bg5 Qf5 gxf5 hxg5 Kd2 Kf7 Kc1 d5 Kb2 e5 c4 b5 h4 e3 a6 g4 a7 g5 c5 b4 h5 d3 h6 g3 c6 g4 c7 d4 h7 b3 Rh3 d2 Nf3 e4 Bg2 d3 Nd4 e2 Qh1 d1N+ Kc1 e1B Bf1 g2 Rh4 g1B Nf3 e3 Be2 g3 Nh2 g2 Nd2 b2+ Kb1 Nc6 Nb3 d2 Ba6 e2 Nc5 Bg7 Bb7 Nc3+ Kc2 d1B+ Kd3 b1B+ Kc4 Bd2 Nf3 e1N Ne4 Bge3 Nd4 g1B Nf2 Ne2 Nc2 Ng3 Kb3 Na5+ Kb2 Bh5 Rc4 Nf3 Ng4 Bf4 Bc6 Bde3 Ba4 Nd2 Qd5+ Be6 c8B Bgf2 Nd4 Bd3 Bcd7 Rc8 Rcc1 Rc3 Nc2 Bd4 Rg1 B2e3 Bb3 Nh6 Rab1 Ra8 Ka1 Ng8 Rb2 Ne7 Rbb1 Ng6 Rbc1 Nf8 h8N+ Kg8 f7+ Kh7 Ne5 Kh6 f6 Kg5 Ng4+ Kh4 Nh6 Nh7 f8Q Kh3 f7 Kh2 Qe8 Bge5 Nb4 Bf6 Bd1 Bh3 Nc2 Be7 Rb1 Bd8 Rb8 B8f6 Rc8 Rc4+
2b2Q1b/b1N4R/3B4/n1r1PQ1r/1P2b2Q/b1bb1r1P/2b1N1k1/3BK1nR w - - 0 1 legal: proof: f4 e5 d4 exf4 a3 c5 Be3 b5 Bc1 b4 axb4 cxd4 g4 h5 b3 hxg4 Bd2 a5 Bh3 a4 Bf1 a3 Be3 Qa5 Bc1 Qa4 bxa4 Rh6 Qd2 Rh4 Qd1 Rh8 a5 Ke7 e4 Ke6 c4 Ke5 c5 f5 a6 g5 c6 d5 c7 d3 h3 a2 a7 f3 Nc3 d4 Bb2 Kf4 e5 Kg3 Bc1 f4 Bg2 d2+ Kf1 f2 Be4 d3 Bb2 Nf6 Qc2 d1B Qa4 d2 Qa5 Bc2 Nb1 d1B Qb6 Bf3 Qb5 Rh5 Qe2 Nh7 Rh2 Nc6 Rh1 Be6 c8Q Bg7 Qe3 Bh8 Qd7 Rc8 a8Q Rc7 Qde8 Bc8 Qc1 Bg2+ Ke2 f1B+ Kd2 f3 Qa4 f2 Qf8 Bfd3 Nf3 f1R Nh4 Rf6 Bf5 Bge4 Qe7 Kf2 Bc3 g3 Ng6 g2 Qf8 g1B Nf4 g4 Na3 g3 Bg4 g2 Nb5 Ng5 Bd4+ Kg3 Bb6 Bd4 Bc5 g1B Bd6 Bb2 Qe1+ Bf2 Bd1 Bc3+ Kc1 Nf3 Ne2+ Kg2 Qa7 Bfd4 Qh4 Ng1 Qb6 Bb2+ Kd2 Rf4 Ke1 Rff5 Rb1 a1B Qa7 Bc1 Qa4 Bab2 Ra1 Rf3 Ra3 Ba1 Rc3 Na5 Rc5 Rcf7 Rc7 Ba3 Rb7 Rc7 Ra7 Rc3 Rh7 Ba7 Nc7 B1b2 Qd7 Rc5 Qdf5 Bc3+
n3r1Qq/2Rq4/2R2Pn1/BB2kqn1/q1nNP3/PQ1r4/q6q/N1q3RK w - - 0 1 illegal: No possible last move, all moves rejected
r1n5/PP1N4/R2nr2n/2n1B1kB/2P1Bn2/Qn1N1q2/n2q1R2/2Q1n1nK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 d4 c5 a5 cxd4 Rh3 e5 Rh1 exf4 b3 b4 Ra3 Ba6 Bb2 Bc5 Qc1 Bb5 Ra1 Ba4 Qd1 Bb6 axb6 a5 Ba3 Bc6 Bc1 a4 Kd2 a3 Ke1 Ba4 bxa4 Qg5 Qd3 Qe7 Qd1 Qd8 Kf2 Ke7 c4 Kf6 e4 d5 g4 h5 Kg2 b3 b7 b2 a5 f3+ Kh2 h3 a6 a2 a7 d3 Be3 d2 Qc2 d1N Qb3 h4 Bc1 d4 Qd3 f2 Qg3 d3 Nd2 b1N e5+ Kg5 e6 f5 e7 f4 e8B f3 Qc7 Ne3 Qc5+ Nf5 Qf8 Nc6 Qc5 Na3 Bb2 Rh6 Bd4 Nc2 Bh8 Nce7 Qa5 Nc8 Qe5 Re6 Ne2 Ne1 Rg1 Nh6 Qb8 Nfd6 Rc1 a1N Rb1 Nb3 Nf4 Nc5 Be2 f1N+ Kh1 h2 Rb6 f2 Rg2 Ne3 Bc6 f1N Be4 Nd5 Nb3 d2 Nd3 d1N Ra6 Nf4 Be5 Nc3 Rf2 Nd2 Qc7 Qd7 Qa5 Na2 Qa3 Qd8 Nd4 Ndb3 Nc6 Qa5 Nb8 Qd2 Nd7 Nf3 Bd1 Ng1 Qc1 Ng6 Kg2 h1N Kh2 h3 Qa3 Kh4 g5 Nf4 g6 Kg5 g7 Ng3 Qa4 Nf1+ Kh1 h2 Bh5 Ne3 Qa3 Nc2 Qc1 Ne1 g8Q+ Kh4 Qh8 Kg5 Qf8 Nb5 Rf1 Na4 Qfa3 Nac5 Rf3 Nbd6 Rf1 Nfe2 Rf3 Nc2 Kg2 Nf4+ Kg3 h1Q Rf2 Qf3+ Kh2 Qfe3 Kh1 Ne1 Bb2 Qee2 Be5 Qf3+
1Qq1N1bk/1R1Q2n1/6Pn/n1B1K3/p2Nn3/2n4r/3RPBPN/3bbr1r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Rh2 Nh6 Kd2 Nf5 Ke1 Ng3 Rh1 Nxf1 Kf2 f5 Kf3 Kf7 c4 Kg7 b4 d5 g6 h5 c5 a5 b6 a4 b7 h4 c6 h3 b5 d3 c7 h2 b6 d4 Ra2 d2 Ba3 d3 Qc1 d1B Qc5 d2 Qe3 Nc6 b8Q Bb4 b7 Na5 Qf2 Ne3 Rb2 Rh3+ Qg3 Be6 c8N Ng4 Qd6 Nh6 b8B Bg8 Ra2 Kh8 Ne7 Qc8 Nc6 Ra7 Qd5 Rf7 Qd7 Bc3 Ba7 Rf6 Kf2 f3 Ke3 f2 Kf4 f1N Bf2 Ne3 Nf3 Bb4 Rf1 h1R Ke5 f4 Ncd4 Nef5 Nc3 Ng7 Nh2 f3 Ncb5 Bc3 Nd6 Rf8 Bg1 f2 Ne8 Rf4 Re1 f1N Bf2 Rf6 Qf4 Ng3 Bc5 Ne4 Rb2 Rf8 Rb7 Rf7 Qg3 Bb4 Bg1 Rf1 Bf2 Bdb3 Ra1 d1N Ra2 Be1 Rd2 Ndc3 Qf4 Bd1 Qf8 Re3 Qfd6 Rd3 Qb8 Rh3
nrk1rrr1/KR2n3/Q3bp1b/N3B1q1/1q6/2NB1PPq/3RQP2/4Nr2 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 b4 gxh4 Nh3 a5 Ng1 axb4 Bd2 Qa5 Bg5 Qa3 Bc1 Qf3 exf3 Ra4 Qe2 Ra3 Qd1 Ra8 Ke2 Kd8 Kd3 h5 Kc4 d5+ Kc5 e5+ Kb6 e4 c4 e3 c5 d3 g3 e2 c6 e1Q Bb2 h3 Ra2 h2 Na3 f6 Qc1 d2 Nc4 d1R Be5 d4 Rb2 d3 Qc2 d2 Qe4 b3 Qg4 h4 Qh3 Bh6 Bf4 Be6 c7+ Kc8 Bd6 Na6 Bd3 Ne7 Ne2 Re8 Qf1 h3 Na3 Ra1 Rg1 d1Q Be5 h1R Nc2 h2 Nc3 Qc1 Qe2 Qg5 Ra2 Rb8+ Ka7 b2 b6 b1R Rb2 Qed2 Rd1 Rf1 Ne1 h1Q Rb4 Qdf4 Rd2 Qh3 Rbb2 Qb4 b7+ Kd7 Rb3 Rf8 Rbb2 Rbe8 b8N+ Kc8 Nc6 Ra5 Rb3 Rb5 Na5 Rb8 Nd1 Rc1 Rb1 Rc4 Nc3 Rg4 Rb3 Qgf4 Rb1 Rgg8 Rbb2 Qg5 Rb1 Qbf4 Rb7 Qb4 Bf4 Kd7 Bd6 Nc5 Be5 Na4 Nc2 Nb6 Ne1 Na8 Rb5 Ng6 c8Q+ Ke7 Qb7+ Kd8 Qa6 Ne7 Rb7 Kc8
Q3KRNn/6BP/q1rP4/p2b4/rqB1bn2/1PnbRQ1B/3n4/1Nkn4 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 h4 gxh4 g3 h3 Qb3 h2 Qa4 Bb7 Qd1 Bc8 Nh3 h5 Kf2 h4 Ng1 h3 Ke1 Bd6 Kf2 Be7 Ke1 Bh4 gxh4 Rh7 Nc3 Rh5 Nb1 Rh8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 c5 d4 f5 h5 f3 b6 c3 b7 f2 h6 c4 h7 f4 d5 c2 b3 f3 d6 c3 Be3 c1Q Be2 f1B Bb5 c2 Bd3 f2 Nd2 Kc3 Ndf3 Kb2 Qe2 Nc6+ Kd5 Nf6+ Kc5 Qd2 b8Q c1N e5 Be6 Bb5 Bd5 e6 Na2 e7 Nh5 e8B Ne5 Bc4 Nf4 Ng5 Nf7 Bd7 Nc3 Qf3 Bd3 Bd4 f1N Ne4 a6 Ra4 Kc1 Nf6 Qc8+ Kb6 Rf8 Ng8 Nh8 Bg7 a5 Bg4 Qa6+ Kc7 Re8 Kd7 Re4 Qb7 Rc8 Qa8 Rc6 Kd8 Rd4 Ke8 Qe1+ Be6 Nd2 Rb4 B5e4 Rb5 Qh4 Rf5 Qg4 Rf8 Bd5 Bb5 Ra4 Bc4 B5e4 Qe3 Qh4 Nf3+ Qe1 Rg1 h1N Rg3 h2 Bh3 Nf2 Qe2 h1B Qf1 Ndb1 Nd2 Nfd1 Re3 Bd5 Qe2 Bhe4 Qf3 Na3 Bb5 Nc4 Nb1 Nd2 Bc4 Qg1 Re1 Qgb6 Re3 Qb4
rNR5/3B3r/2Qn2P1/rq1P1NPr/1n1B2R1/1rrbbQ2/pN1k4/4r2K w - - 0 1 illegal: No possible last move
q5r1/2n3q1/bR6/nbb2QpB/1Pk2r2/P2R1rN1/KqB1P2b/3NQ1R1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 a5 g4 hxg4 Qb3 b6 Qb4 Qg5 b3 Qd8 Ba3 a4 Qc4 Qe7 Bc5 bxc5 b4 Qd8 Qb3 axb3 Kd1 Ke7 Kc1 f5 Kb2 g5 d4 f4 h4 c4 a3 c5 d6+ Ke6 d7 Kd5 e6 c3+ Kc1 b2+ Kc2 f3 Kb3 c2 e7 c1Q e8B g3 h5 f2 h6 g2 h7 c4+ Ka2 c3 Nh3 g1B Bh5 c2 Nd2 Nc6 Ne4 Na5 Bg2 f1R Ng3+ Kc4 d5 Bh2 d6 Rf3 Nf2 Ne7 Nd1 Rg8 h8Q Ba6 Qh7 Nd5 Qf5 Nc7 Rb1 Qe7 d8R Qg7 d7 Bc5 Rb8 Qf4 d8Q c1Q Qd2 Qe4 Rb6 Raf8 Qe1 Qa8 Rg1 Rf4 Be4 Rf3 Qg4 R8f4 Bc2 Qd2 Qf5 Qdd4 Nc3 Bb5 Rd1 b1B+ Kb2 Ba2 Rd3 Bb3 Kb1 B3a4 Ka1 Ba6 Ka2 B4b5 Nd1 Qb2+
8/QrNb4/K1P2Q1p/b1BB4/RnPr3r/1Q2N1qR/2nb2qP/q1kq4 w - - 0 1 legal: proof: e4 c5 g4 d5 a4 dxe4 b4 f5 bxc5 fxg4 Bc4 b5 axb5 a6 Bf1 axb5 Ke2 Kf7 f4 Ke6 d4 Kf5 c4 g5 c6 e5 d5 e3 Kd3 e2 d6 e1B d7 b4 Qc2 g3 Qg2 b3 Be3 e4+ Kd4 b2 Bd3 g4 Qf3 g2 Qf2 g3 Qc2 Bh6 Kc5 Ba5 Kb5 Ne7 Nh3 g1Q Ng5 g2 Qc3 Nd5 Qc1 Nb4 Ne6 Nc2 Nc3 b1R+ Qb2 Na6 Bc5 Nab4 Qb3 Rb2 Ra3 Qa1 Ra4 g1Q Nd1 Qg2 Rf1 Qdg8 d8Q Q8g3 Qc7 Bd7 Qa7 Rad8 Be2 e3 Bf3 e2 Bd5 e1Q Rf3 Kg4 f5 Bd2 f6 Qee2 Nc3 Qed1 Nc7 Rb1 Re3 Kf4 f7 Rb2 Re4+ Kf3 Re3+ Kf2 Rf3+ Ke1 f8Q Qdb1 Qb7 Qh4 Ra3 Bg4 Bg8 Nd5 Rh3 Qhg3 Ka6 Rd6 Qf6 Bd7 Q3b6 Rb5 Ne2 Kd1 Q7a7 Rb2 Qb5 Rb4 Qa4 Rb7 Qb3 Qc1 Nd4 Qcb1 Bb6 Qc1 Nf5 Nb4+ Kb5 Rd4 Bd5 Re8 Ra4 h6 Qa3 Ree4 Qb3 Bc3 Ne3+ Kd2 Rh4 Qd1 Rh5 Kc1 Rh3 Nd3 Ka6 Rh4 Bc5 Bcb4 Ra3 Bd2 Ra4 Ndb4+
2N2RQb/1Knnb1r1/1P1rQN2/q3p3/2nr3B/Pq1k4/4RPQ1/b3n2B w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 c5 d4 cxd4 g4 hxg4 Bh3 b5 Bg2 Ba6 Bh3 axb4 Bf1 b3 Bb2 b4 Bc1 Bb5 cxb5 Qc7 Bg2 Qa5 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 d3 h4 g3 a3 b2 h5 g4 h6 b3 h7 g2 Kc5 Ke5 f6 Ke4 f7 d5 Bg5 d4 Bf4 d2 Ra2 g3 Bd6 d3 Bc7 Ra7 Kb6 Nf6 Nf3 g1B Rh5 g2 Be2 Na6 Rc5 Nd7+ Kc6 Bh2 Rf5 g1B Bb8 Be5 Qf1 d1R Bc7 d2 Ne1 Bgh2 Nc2 e6 Bb8 Nc7 Nd4 Be7 f8Q Ra6+ Kb7 Rd6 Qh6 Rg8 h8Q Rg7 Rf7 B5f6 Nf5 Bhe5 Qfh3 Bd4 Qg8 e5 Bf3+ Kd3 Nc3 b1Q Nd5 Ba1 Rf8 b2 Qg2 Qc2 Ba7 b1N Be3 Qb3 Rc2 Re1 Bf4 d1N Bg5 Nd2 Bh4 Nc4 Re2 Nde3 b6 Nc2 Qhg6 Rd1 Q6f7 Ne1 Qe6 Bg5 Nf6 Qe8 Nh7 Bgf6 Bc6 Rd4 Nd6 Qf7 Nc8 Qa4 Qed5 Qa5 Qd6 Qfd5 Qde6 Qdb5 Bd5 Qb3 Bc6 Rg5 Bf3 Bh8 Nf6 Rd2 Qf1 Rd6 Bh1 Rg7 Qg2 Kc2 Re3 R2d4 Re2+ Kd3
bbk2N1Q/3r1n1n/pr3P2/4Q3/6B1/2r1q1Pq/B1nnRqP1/K1RR1N2 w - - 0 1 legal: proof: d4 b5 c4 f5 a4 g5 axb5 c5 e4 fxe4 Be3 cxd4 Bd2 g4 Bc3 g3 hxg3 dxc3 b4 e5 f4 d5 f5 Kd7 b6 h5 b7 h4 f6 e3 c5 a6 b5 d4 b6 d3 Be2 d2+ Kf1 c2 Ra2 c1N Nf3 e4 Ne1 h3 Ra5 h2 Ra4 Nh6 Ra2 Nb3 Nd3 Qe7 Qe1 d1R Nf4 Nf7 Bc4 Nd2+ Ke2 Ra7 Rg1 h1Q Ng6 Rc1 c6+ Kd8 Rc2 Nd7 b8R Qh3 b7 Rh4 Rb2 Rc3 Kd1 Rg4 Rc2 e2+ Kc1 e3 Ba2 Rb4 Ra8 Qe8 b8Q Bd6 Nf8 Rb6 Rh1 Bf4 Qe5 Rc7 Qd1 e1N Qdh5 e2 Qh8 Qe7 Ra7 Bb7 Rg1 Nef3 Rd1 Ba8 Rb7 e1Q Ra7 Ne4+ Nd2 Kc8 Rb7 Qf2 Ra7 Re3 Nf1 Ne1 Re2 Nd2 Rb7 Nc2 Ra7 Nb4 Kb2 Rc3 Ka1 Rcb7 c7 Qec5 Rc1 Qce3 Nh7+ Nf8 Rd1 Kd7 c8B+ Kd8 Bg4 Rd7 Rc1 Kc8 Rc7+ Kb8 Rc5+ Kb7 Rd5 Kc8 Qh5 Bb8 Qe5 Nb1 Rdd1 Nd2 Ng5 Rc4 Ne6 Rc3 Qh4 Nh7 Nf8 Bd5 Qh6 Bc6 Qg7 Ba8 Qh8 Nc2+
2q5/bknP2R1/rP2B1r1/n2nb1pN/2Q1N3/1P3qQQ/1K1Br3/1R4qn w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 g5 f4 Bf5 h4 Bg6 f5 e6 h5 exf5 hxg6 fxg4 Ra3 g3 Ra4 Qc8 Ra1 Qd8 e4 Kd7 d4 Kc8 Kd2 h5 Kc2 c5 e5 a5 e6 f5 e7 h4 e8Q a4 g7 c3 b6 g2 Na3 f4 Rh2 f3 Qd3 h3 Ra2 f2 Qde2 c4 Qf3 Rh6 Qe5 Ra6 Qee2 Nf6 Qee4 Bc5 Qed3 Rg6 Be2 f1Q Qh5 Kb7 Nb5 a3 Rh1 h2 Bd2 Nd5 Qg3 Qf3 Nh3 g1Q Nf4 Qc8 Ra1 a2 Rb1 a1R Qhh3 R1a2 Nh5 Bd6 Bf1 Be5 Kc1 c2 Nc3 Nd7 Ne4 N7f6 g8Q Ne8 Qgg4 Bb8 Qgg3 Ba7 Qge6 Nec7 Qeg4 Qgf2 Bd3 Q2e3 Rd1 h1N Q4h4 Qg1 Be2 Qff5 Bg4 Qf3 Bf5 R2a3 Be6 Re3 Rf1 Re2 Be1 Qg4 Rf7 Qf3 Rg7 Re3 Kd2 c1B+ Kc2 c3 Bd2 Re2 Kb3 Nb4 d5 c2+ Bc3 Be3 d6 Nd5 Bd2 c1N+ Kc2 Bf2 d7 Nb3 Q4g4 Na5 b3 Bc5 Kb2 Bd6 Q4f4 Qd3 Qff1 Qf3 Qc1 Bf4 Qc4 Be5+
rrb4Q/Q2b2q1/5R1B/1Rq1N1Pb/K1BP3k/Pbq2p1N/5n1B/q6q w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 f5 b5 e5 b6 exf4 g3 f3 Qb3 axb6 Kd1 b5 Kc2 f2 Kc3 Nc6 Qd1 b4+ Kc2 Nb8 Ba3 g5 Bb2 f4 Bc1 f3 Qe1 Bd6 Qd1 Bf4 gxf4 Nc6 h3 Ne5 h4 g4 Bg2 Nf7 Bf1 Ng5 hxg5 Qd7 Rh2 Qe7 Rh1 Qd8 d4 Kf7 e4 Kg6 a3 b5 e5 c5 e6 h5 e7 g3 Qd2 h4 f5+ Kh5 f6 c3 Kb3 g2 f7 c2 f8B c4+ Ka2 b3+ Kb2 b4 Ne2 g1Q Qf4 h3 Qb8 h2 e8Q+ Kh4 Bc5 Nf6 Qd7 Ng4 Ba7 Qg8 Bh3 f1B Nf4 Qg7 Bb6 Nf2 Bg4 Bh3 Nd2 Qf1 Rb1 c3+ Ka1 b2+ Ka2 Qb5 Kb3 Qc5 Be6 Re8 Re1 h1Q Bc4 Bf5 Qdc7 Bfd7 Re6 Rd8 Rf6 Rh8 Ra1 b1B Nh3 Rg8 Qba7 Rb8 Qc6 Ba2+ Ka4 b3 Rb1 b2 Bd8 Rf8 Be7 Re8 Bf8 Rd8 Nf1 Ra8 Be3 c1Q Nd2 c2 Bf4 Qcg1 Be5 c1Q Bh2 Qc3 Qb5 Bg4 Qd7 Bh5 Qf7 Re8 Qg8 Qgc1 Qh8 Bd7+ Bb5 Reb8 Nc4 Qcg1 Ne5 Bae6 Rc1 b1B Rc2 Bg4 Rb2 Ba2 Rb3 Bc8 Bc4 Qga1 Rb1 Bgd7+ Rb5 Qg8 Bh6 Qf7 Rf5 Qg7 Rf6 Bb3+
1rr2K2/BR1bR3/3qN1Q1/N1BQ1p2/1r1bbPq1/nBq3P1/4b2P/1q5k w - - 0 1 legal: proof: e4 h5 b4 b5 a4 c5 f4 g5 g3 h4 Bc4 h3 Qf3 g4 Bf1 gxf3 axb5 d5 Ra3 Nc6 Re3 c4 d3 Ne5 Re2 Ng4 Rg2 hxg2 Kd1 Ne3+ Kd2 d4 Ke1 Nd5 exd5 cxd3 Kd2 Kd7 c4 Kd6 b6 a5 b5 e5 b7 f5 b8R a4 b6 e4 b7 a3 Nc3 e3+ Kd1 a2 Nh3 g1Q Bb2 a1Q+ Bc1 f2 Na4 d2 Kc2 d1B+ Kd3 e2 Bb2 e1R Bc1 Bh5 Nc5 Re4 Be3 Bg7 Nb3 Nf6 Ng5 Be8 Ne6 Nd7 Na5 Nb6 Be2 Qg5 Bd1 Qg4 Bb3 Qgc1 Re1 f1B+ Re2 Bcd7 Bf2 Bc6 Bg1 Bg6 Be3 Rc8 Bg1 Bge8 c5+ Ke7 Bf2 Nc4 d6+ Kf6 d7 Na3 d8Q+ Kg6 Qb6 Kh5 Qa6 Bd5 c6 Qcb2 c7 Qbb1+ Kd2 d3 Bc5 Rb4 Ke3 d2 Qd6 Be4 Qd5 Rd8 c8Q d1Q Qcc6 Rc8 Re1 Qg5 Qb6 Kg4 Re2 Kh3 Qbc6 Bh5 Qe8 Qh6 Qg6 Qc3+ Qd3 Qh8 Qf7 Re8 Nc7 Beg2+ Qe6 Qf6 Qd5 Rc8 Re1 Qff8 Qf6 Be8 Qg6 Qg4 Re2 Ra6 Re1 Bc4 Re2 Rf6 Kd4 Bcb5+ Ke5 Rb6+ Qf6 Ba6 Re1 R6b5 Ke6 Bf3 Re5 Kg2 Qg6 Kh1 Re2 Bh6 Re3 Qc3 Re4 Bg7 Re3 Qg8+ Ke7 Bd4 Re5 Qe6+ Kf8 Qd6+ Re7 Be4 Ne6 Qbe1 Ra8 Qec1 b8B Qb1 Ra7 Rb6 Rd7 Be2 Ba7 Rbb8 Rb7 Bd7+
r5QR/1PQ4R/7p/n6P/1rn1p2Q/1r1b3b/k1PqB1NN/qb1K2nB w - - 0 1 legal: proof: e4 c5 b4 d5 f4 dxe4 a3 e3 a4 b5 axb5 cxb4 Ke2 e5 Bb2 e4 Bf6 Bd6 Ke1 Be5 fxe5 gxf6 e6 f5 Qf3 f4 Qe2 Qa5 Qd1 Qd8 h4 Ke7 d4 Kd6 g4 f5 e7 a5 e8B e2 g5 b3 d5 Kc5 d6 Kb4 h5 f3 b6 a4 d7 h6 g6 f2+ Kd2 e1N g7 b2 Ra3 f4 Bb5 f1B Qf3 Nc6 Ne2 Nf6 g8Q Na5 Rg1 Nd5 Qfg3 f3 Kd1 f2 Nd2 b1B Qh4 Nf3 Rg7 Ng1 Nf4 Bd3 Ng2 Rh7 Rc3 a3 Nf1 a2 Nh2 a1Q b7 Nb6 Bg6 Nbc4 Bf5 Qg5 Re7 Rf7 Bg4 Rf3 d8Q Rg3 Be2 Bh3 Bf3 Qd5 Qc7 f1R+ Ne1 Qd4 Bh1 Rf5 Ba6 Rb5 Ng2 Ka4 Rh7 Rb4 Rb3 Qd8 Rb2 Ka3 Rb3+ Ka2 Rc3 Bf1+ Rd3 Qg5 Rd8 Rgb3 Rf8 Nd2 Be2 Ndc4 Rh8 Qe3 Rf7 Qf4 Rfh7 Qg5 Bf3 Bd3 Be2 Qd2#
Bb1QR3/qPBR2r1/2K1bP2/1RP4n/3Npr2/1p1Q1Nk1/3n3q/q2rn3 w - - 0 1 legal: proof: b4 c5 d4 cxd4 g4 f5 e4 b5 exf5 h6 Qf3 h5 a4 bxa4 Qb3 axb3 gxh5 Rh6 Ra5 Rh7 Ra1 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 g5+ Kf3 Ke5 h4 a5 c4 a4 h6 a3 h7 d3 c5 g4+ Ke3 g3 f6 a2 b5 d2 b6 d1Q f7 g2 h5 Ra4 h6 Nf6 Nc3 Qc2 Nb5 Qd7 Nd4 Rg8 h8R Qa7 h7 Nh5 f3 Bg7 f8Q Be6 Qd8 Nc6 Bb5 Na5 Bc6 Bf6 Ba8 Rg7 b7 Qb2 Kd3 Nc4 Re8 Nd2 h8Q Kf4 Qh7 Kg3 f4 Be5 f5 Bb8 Ngf3 g1N f6 Rc4 Rh4 Rb4 Rb1 a1Q Ke3 Qba2 Qd3 Qc2 Bb2 Rc4 Rd1 Ra4 Nc6 Rf4 Be5 Qca2 Ncd4 Q2b2 Nh2 Ngf3 Bc7 Ne1 Nhf3 Bf7 Rc1 e5 Rc4 e4 Rb4 Be6 Rb5 Nb1 Rh1 Qg2 Rh2 Qh1 Rd2 Qh2 Rd1 Nd2 Nc6 Qc1 Kd4 Qca3 Ke5 d4 Kd6 Qc1 Qb1 d3 Ncd4 Qb2 Kc6 Qba1 Qc2 Nc4 Qc3 d2 Qd3 Kg2 Rb1 d1R Rb2+ Kh3 Rg2 Nd2 Rg5 Ng2 Rd5 Ne1 Rd7 Kg3
8/PkbN1Rq1/2q2B1P/PB4p1/n2Q1pqB/n1brR1b1/2r3N1/Q1K2n2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 bxa5 h5 Bg5 hxg4 Bh6 Ra6 Bc1 Ra8 f4 b5 e4 d5 f5 d3 f6 d4 Nd2 Bb7 Be2 Bd5 exd5 Ra6 Bf1 Rxf6 Nb1 Rf2 a4 Kd7 c4 Kc8 h4 f5 a6 g5 h5 e5 h6 b4 c5 g3 a5 e4 c6 g2 a7 f4 d6 b3 c7 b2 d7+ Kb7 Ra2 e3 Bd2 e2 Nc3 b1N Be3 Na6 Bd2 Qf6 d8B Ne7 Nd5 Na3 Nb6 Nc5 Na4 Qc6 Nh3 g1B Qa1 Bg7 Rc2 Nd5 Nb6 Ne3 Nd7 Na4 Bf6 Rd8 Bb4 Bh8 Kd2 e1B+ Kc1 Bg7 Be2 Nf1 Rc4 Bh2 Ng1 Bc3 Nf3 Bg3 Ne1 Bh8 Rh3 d2+ Kd1 Rh2 Ng2 Bg7 Rc5 Bf8 Re5 Bd6 Re7 Be5 Bb5 Bd6 Rf7 Be5 Nf8 Rd5 Nd7 Bd6 Ke2 d3+ Kf3 d1Q+ Ke4 Bh4 Re3 d2 Bc5 Qg4 Bcd4 Re5+ Kd3 Bg3 Bc5 Rd5+ Bcd4 Ka8 c8Q+ Bb8 Qg8 Kb7 Qd8 Bc7 Qh8 Qge6 Ke2 Qe7 Kd1 Qe5 Rd3 Qe7 Bf2 Rd4 Re3 Rd3 Qe8 Qf8 Qe4 Qg7 Qd4 Nc4 Kc2 Na3+ Kb3 d1Q+ Ka2 Qg4 Kb3 Nb1 Kc2 Na3+ Kc1 Qce6 Be1 Qc6 Nh4 Rb2 Ng2 Bh2 Bh4 Bg3 Qd5 Ra2 Qd4 Rc2#
1n1Qn2k/2N2B1P/rKP4b/5rnR/p1r1Rnn1/1Np3q1/1P4bB/1R5Q w - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 h5 g4 hxg4 d3 Ba6 Qd2 Bc8 d4 cxd4 Qc3 dxc3 axb5 Rh4 Ke2 Rh6 Ke1 Rh8 Ke2 Kf7 Ke3 e5 h4 g5 f4 Kg7 h5 d5 c5 a5 c6 g3 b6 g4 b7 d4+ Ke4 d3 Bg2 a4 Nd2 Qh4 Kd5 e4 Nb3 e3 Rb1 d2 Ne2 d1N Ned4 e2 Nb5 e1R Nc7 Ra6 h6+ Kh7 f6 Ne3+ Kd4 Rf1 f7 Nf6 f5 Ne8 f6 Rf5 Bd5 g2 Rh3 Qg5 Rh5 g1N Be6 Bg7 f8Q g3 Bf7 Ng4 Bf4 g2 Bh2 Nh3 Qa3 g1N Qa1 Nf4 Kc4 Nd7 b8R Ngh3 Rb4 Nb8 Kd4 Rg8 Rc4 Kh8 h7 Be6 Rb4 Bd5 Kc5 Bh6 Re4 Qh4 Kb5 Qg3 Kc5 Ra8 Kb6 Rg7 Bg8 Ra7 f7 Ng5 f8Q Ra5 Qe7 Rc5 Bf7 Rc4 Qd8 Rg8 Ree1 Bg2 Re4 Rg7 Qa3 Rg8 Qc5 Rf8 Qg1 Ra5 Qh1 Ra7 Bd5 Rf5 Bf7 Ra6+
Q2n2Q1/Q4PrP/1Rr3r1/Rrp5/N2kbn2/P2BN3/Kq3pr1/1B4bn w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 b4 axb4 gxh5 Bf5 Kf2 Bd7 Ke1 Bc8 e4 f6 Qg4 Qe7 f5 Qd8 Qf4 Nh6 Bb2 exf4 e5 Ng8 e6 Nh6 Bd4 Ng8 Be5 fxe5 Kd1 Ke7 Kc2 Kd6 Kb3 Kc5 h4 g5 f6 b5 e7 f3 e8B e4 f7 g4 h6 e3 h5 e2 d6 e1N d7 g3 d3 g2 a3 Kd4 h7 Ne7 h6 Bb7 Nd2 Rg8 h8Q+ Rg7 h7 Be4 Ka2 b3+ Kb2 b4 Rh4 Nbc6 Qg8 Ra6 Nc4 Nf5 Rh5 Ng3 Rb1 Nh1 Ra5 Bc5 Ne3 Qf6 Ka1 b2+ Ka2 Nd8 Ne2+ Ke5 Nc3 g1R Bh3 Ng2 Bf5 Nf4 Na4 Rc6 Bg6 Rg2 d4+ Kd6 d5 Ke5 d6 Kd4 Rc1 b1R+ Rc2 Rd1 Rb2 Rdg1 Bf5 Nde6 d8Q R2g6 d7 R1g2 Qb8 Nd8 Qa7 b3+ Ka1 Bb6 Rb1 b2+ Ka2 Kd3 Nf1 Bg1 Ne3 Nb7 d8Q+ Qd4 Qc8 f2 Bed7 Nd8 Qca8 Qb4 Bde6 Qb6 Bc4+ Kd4 Re1 b1R Bd3 Rb5 Rc1 Rce6 Rc6 Ref6 Re6 c5 Bb1 Qb7 Rb6 Rc6 Bg4 Qc8 Be2 Qg4 Bc4 Qd1 Be2 Qc1 Bed3 Qb2+
Qr2NB2/n1PB2b1/1nPpKNQ1/1br5/RQ1n1q1p/3nP3/R2b4/1n5k w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 f4 exf4 g3 fxg3 dxc5 gxh2 Kf2 Ke7 Kg3 Kf6 Kf4 h5 c4 a5 b4 g5+ Ke4 d6 Kd5 Kf5 b6 Kg4 c6 Kg3 b5 f5 c5 h4 c7 g4 c6 f4 e3 a4 b7 f3 b6 a3 Qc2 a2 Bd2 f2 Qc1 Bg7 Bh3 f1N Ba5 Rh5+ Ke4 Ne7 Bc3 Qf8 Bf6 Nd7 b8Q Ba6 b7 Rc5 Nd2 Nc8 Qb1 Ndb6 Ngf3 Bb5 Ne5 Na7 Kf5 Kf2 Qd3 g3 Ke6 g2 Be7 g1N Qg6 Ne2 Nd7 Qf4 Bf8 Bc3 Rg1 h1N Rg4 Ba5 Qd8 Rb8 Nf6 Bc3 Ne8 Nd4+ Ke7 Ba5 Ne4+ Kf3 Qc8 Bd2 N4f6 Nf2 Rg2 Nd3 Bd7 Bc1 Rb2 Nd2 Rb4 Nb1 Ra4 Bd2 Kf7 Ra8 b8Q Kf2 Qbb7 Rb8 Qa8 Kf1 Qa6 Kf2 Qa5 Kf1 Bg4 Kg2 Qb4 Kh2 Bd7 Na3 Rg1 a1B Rg2+ Kh1 Re2 Nb1 Rf2 Be1 Rfa2 Bd2 Ke7 Nc2 Ke6 Bac3 Ne4 Bg7 N4f6 Nd4+
r3N1b1/5r1k/1Q1QpP2/1n3NK1/1BqbnR1n/4P1Pp/R3Br1B/n5b1 w - - 0 1 legal: proof: c4 g5 b4 f5 h4 gxh4 c5 f4 b5 b6 Ba3 f3 Bb4 bxc5 exf3 a5 f4 axb4 f5 Ra7 Bc4 Ra3 Bf1 Re3+ dxe3 Bb7 Nd2 Ba6 Nb1 Bc8 Kd2 Kf7 a4 Kg7 f4 h5 f6+ Kh7 b6 d5 a5 b3 b7 b2 f7 d4 f5 d3 a6 h3 a7 h2 a8Q h4 f6 h3 Ra6 c4 Ra7 c5 Nf3 c3+ Ke1 c4 Kf2 c2 Kg3 c1B Kh4 c3 Qe1 d2 Ra4 d1N Na3 b1R Qf2 c2 Ra5 Bb2 Rf5 c1N Qa4 Qd4+ Kh5 Nb3 Qa8 Na1 Nb5 Na6 b8B Nc7 Qe2 Nf2 Qb7 Ne4 Nc3 Be6 Nb5 Nh6 Nh4 Qc4 Qd3 Bd4 Rf4 Nf5 Nd6 Nb5 Qb6 Rc1 Rg1 h1R Ne8 Rh2 Be2 Bh6 f8B Bg8 Rh1 e6 Bb4 Bf8 Rd1 Bd6 Rd2 Bc7 Ra2 Bce5 Ng6 Nh4 Ne7 Rc3 Nf5 Ra3 Bg4 Ra7 Be2 Rf7 Bc7 Bc5 Qdd6 Bcd4 Rf1 Bg3 Rf4 Bf2 Bb8 Bg1 Kg4 Nd2 Kg5 Ne4+ Kh5 Nc5 Qf8 Ne4 Rg4 Nd2 Kg5 Re7 Neg7 Bf7 Be5 Rd7 Qfd6 Ra8 Ne8 Bg8 Bf4 Rf7 Bg3 Bf2 Rf4 Ne4+ Kg4 Rh1 Bh2 Rf1 g3 Bg1 Kh5 Rf2 Kg4 Nec3 Kg5 Ne4+
5n2/5Nq1/Bq1Q1Pr1/p1Pb2pb/4P2Q/1bnrN2b/3R1R2/bk1B2BK w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 axb5 f6 g5 Ba6 Bh3 Bb7 Bf1 Bc8 h4 e5 h5 e4 Qd2 fxg5 Qd3 g6 hxg6 exd3 f4 Ke7 Kf2 Kd6 Kg2 Kc5 c4 Kb4 g7 Kb3 e3 Kc2 b4 a5 c5 h5 b6 d5 f5 d2 b5 d1Q b7 d3 b6 d2 Nh3 h4 Be2 d4 Ba6 d3 Ng1 Nf6 g8B Rh6 Rh2 h3+ Kh1 Bg7 Nc3 Nd5 Rf2 Nd7 b8Q h2 b7 Qb6 Qd6 Rg6 b8Q Nf8 Ra3 Bd4 f6 Bh3 Qbc7 Rb8 Qh7 Rd8 Qh4 Qg4 Bh7 Qd7 Nf3 Qg7 Nd1 Nc3 Ra2+ Kb1 Ne5 Rd7 Nf7 Be5 Nb2 d1B Nc4 d2 Bb2 Bb3 e4 d1B Ne3 Bd5 Bg8 B1b3 Ba1 Bg4 Rad2 Bh5 Nh8 Rd8 Be6 Bd4 Bg4 Rd7 Bd1 Be5 Kg2 h1B+ Kg1 Bd4 Nf7 Bg2 Kh2 Bf1 Kh1 Bh3 Bb2 Na4 Bc1 Ba1 Bb2 Rd8 Be5 Nc3 Bh2 Bc6 Bg1 Ba8 Qe6 Rd3 Qd6 Bad5
1q2K3/1q1B3Q/k1NPP1nr/1npB1nPn/3QR1rN/4p2R/1Q6/3bb2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c3 e5 c4 dxc4 fxe5 f6 e4 Bc5 e6 Bf8 e7 Kd7 b3 Ke6 e5 Qd5 Bb2 Qd8 Bc3 Kd5 e6 Kd6 Be5+ fxe5 Kf2 Kc5 Kf3 Kb6 Kg4 a5 Kg5 h5 Kg6 a4 Kf7 h3 e8B h4 g4 a3 d4 c3 d5 e4 g5 h2 b4 a2 Bd7 e3 Nh3 c2 Qd2 c1Q Qb2 Bb7 Nd2 Nh6+ Kg6 Ra4 Nb3 Nf5 Kf7 Qc6 Na5 Rh6 Nf4 h3 Bc4 Bg7 d6 Bc3 Bb3 Be1 Ng6 Qe4 Rb1 a1N Qd4+ c5 Nh4 Nc6 Bd5 Nce7 Nc6 Qb8 Rc1 Ba6 Rc4 Kb7 b6 Nb3 b5 Ng6 Qa1 Qb1 Re4 Rb4 Qh8 Nbd4 Qh7 Rc4 Rg1 h1N Rg3 h2 Rh3 Qc7 Ke8 Nhg3 Kf7 h1N Ke8 Ra4 Nb4+ Kb8 b7 Ka7 Nc6+ Kb6 b8Q+ Qb7 Qa8 Nh5 Qc8 Qb8 Qd8+ Kb7 b6 Be2 Kf7 Ra7 Ke8 Ka6 b7 Nb5 Qc8 Bd1 Qd8 Qa8 b8Q Qb7 Qf6 Qb4 Qc3 Qb2 Qc4 Qh8+ Kf7 Qd8 Qd4 Qdc7 Qbh8 Qcb8 Qb2 Ra8 Qhd4 Q7c7 Rf4 Kb7 Qdc3 Ra4 Rg4 Re4 Qd4 Kb6 Rf4 Qbb7 Ke8 Ka6 Rff3 Rg4 Rf4 Qbb6 Re4 Qbb8+ Nd8 Qbb7 Nc6 Qcb8+
2Nnn3/R1N1P3/r1p2B2/b2P1pK1/bq6/7r/1RQ1q2P/kBqQq1Qq w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Ke7 d4 Kf6 e4 g5 d6 g3+ Kf3 g2 d7 b3 Kg4 b2 d5 Ke5 b6 f5+ Kf3 g4+ Kf2 g3+ Kf3 Nf6 b7 Bb4 Nc3 b1Q Ra3 Ne8 Ra2 Qh4 d8Q Bd7 Nb5 Nc6 b8Q Ra6 Rb2 Ba5 Qg5 Nd8 Nh3 g1Q Nd6 g2 Qc8 Qe1 Bd3 Kd4 e5 Kc3 e6 Ba4 e7 Qd4 Qg3 g1Q Ng5 Rh3 Ne6 Qb4 Be3 Qc1 Bb1 Qed2 Bb6 Qge1 Rg1 Qdc2 Rg2 Qh1 Ra2 Kb3 Bd4 Qhe1 Bf6 c6 Nc7 Qh1 Qe6 Qhe1 Qee2 Qh1 Kf2+ f3 Qg7 Rg3 Nc8 Rh3 Qed2 Rg3 Ke3 f2+ Qf3 f1Q Qg6 Qbc3+ Kf4 Qfe1 Qd1 Re3 Kg5 Qb4 Rb2+ Ka3 Qg7 Qd3 Q2c2 Qde2 Qg6 Qe4 Rb7 Q1b4 Ra7 Qe5 Qe4 Kb2 Qg7 Ka1 Qg8 Qeb5 Rb2 Qe2 Qec2 Qee1 Kh5 Qee4 Qg1 Qeg2 Kh6 Qge2 Kg5 Rh3+
1b1R2n1/PRKQ2P1/2P2bkp/2b3B1/3Qq1r1/pb1qB1Q1/1b2r2N/2n4N w - - 0 1 illegal: No possible last move
8/p5q1/1PNn1Pb1/2PRb2N/k3pBRK/q7/1r1rb1Qb/Qb1nBQ2 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Kf2 e5 b4 d5 c4 Kd7 h4 d3 c5 g3+ Kg2 f3+ Kh3 g2 h5 d2 g6 f2 b6 Kc6 b7 Kb5 g7 f1B h6 d4 h7 e4 Kg3 d3 f6 Nh6 g8Q Ng4 Qg5 Be2 Qe3 Qd7 Rh5 Bd6+ Qf4 Ne3 Rd5 Be5 Bb2 Na6 b8B Rd8 h8Q Nc7 Qg7 Ne8 Kh4 Nd6 Nf3 g1B Bc3 Bh2 Qg2 Qg7 Qdg1 d1Q Nbd2 Bh3 Nf1 d2 Ng3 Bf5 Nh5 Bg6 Q1f1 Qa4 Nd4+ Ka6 Qfg4 d1B Nc6 Kb5 Be1 Qa3 Qgg1 Bb3 Q4g2 Ka4 b5 Ba2 b6 Nd1 Rc1 Bb1 Rc3 Rh8 Rg3 Rg8 Bc7 Rad8 Qd4+ Qb4 Qa1+ Qa3 Rg4 Rh8 Kg5 Rh7 Nf4 Rh3 Nh5 Rb3 Kh4 Rb2 Na5 Ne8 Rd2 Bc3 Bf4 Be5 Nc6 Rd4 Rd3 Nd6 Rd2 Rc4 Rd3 Rcc2 Rd5 Rd2
4Q2q/1q2nR2/B1q1QP1n/b3rqP1/pQ1P4/K1rp4/1N1b3R/1kN1n2B w - - 0 1 illegal: No extended proof kernel
K6n/2Q1bRNk/1P2qP2/Brn2nQ1/4b1B1/R3NPqp/1b3pr1/N6b w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 f5 h5 b5 axb5 f4 f3 g6 Qd3 gxh5 Kd1 h4 Qe3 e6 Qf2 e5 e3 e4 exf4 e3 f5 exf2 Kd2 Kf7 Kd3 Kg7 Ke4 a5 Kd5 h5 c4 a4 g4 d3 b4 h3 c5 h2 b6 d6 c6 d2 b5 d1Q+ Nd2 h4 b7 a3 g5 a2 c7 Nd7 Kc6 d5 b8Q d4 g6 d3 b6 Qe2 f6+ Kh6 g7 Kh7 Nh3 Nc5 Nb3 d2 Nf4 d1N Bd2 Ra5 Nh5 Nh6 Bh3 Rb5 Bg4 Nf7 Ba5 Bf5 c8N Ne3 Nd6 Be7 Qc7 Rg8 Nc4 Nh8 Rhd1 Bb1 Rd7 Nf5 Ne3 h1B Rd4 h3 Rd7 Nd3 Kb7 Qe8 Ka7 Qg6 Kb7 Nc5+ Ka7 Bd8 Ka8 Qc4 Re7 Qe6 Rf7 Bc2 Rf1 Qg5 Na1 Qh4 Rb1 Qg3 Rb3 Bb1 Ra3 Be7+ Qc8 Rd8 Qb8 Rd4 Qc7 Be4+ Qb7 Rd1 Qc6 Rg1 g8Q+ Kh6 Ng7 Rg2 Qc8 Kg6 Qc7 Kh7 Qf4 Bc2 Qg5 Be4 Nac2 a1B Qb7 Bd4 Na1 Bb2 Qc6 Bc2 Qc7 Be4+
2b1kn1N/N2r2n1/1p2B3/8/Q1nRq1b1/P1PP2r1/1pQR3B/1nq1bKN1 w - - 0 1 legal: proof: e4 d5 g4 f5 exf5 h5 gxh5 c5 b4 cxb4 a3 a5 c3 a4 Qb3 axb3 Ra2 d4 Rb2 d3 Rc2 dxc2 f4 e5 h4 g5 h6 e4 h7 b6 f6 b2 h5 b3 f5 g4 h6 e3 Ba6 e2 Rh2 g3 Rh1 g2 Rh2 Bd6 Bc4 Qe7 Be6 Nd7 d3 Ra7 Bd2 Nf8 Bf4 Rd7 Nd2 b1B Nc4 b2 Na5 Ba2 Nc6 c1Q+ Kf2 e1N Na7 Nf3 f7+ Kd8 f6 Nd2 Rh4 Nc4 Bh2 Bg3+ Ke2 Be1 Rd4 Ng6 f8R+ Qe8 f7 N8e7 Re4 Nf5 Rd4 Rg8 h8N Ng7 h7 Bb3 Nf3 g1N+ Kf1 Nh3 Ng1 Ng5 Be5 Nf3 Bf4 Nf5 Bh2 Rg7 Rg8 Bd1 f8Q Be2+ Kg2 Nfd2 Qb4 Nb1 Qa4 Bh5 Kf1 Nf8 Qc2 Rg3 Rgg4 Rh3 Rg2 Rg3 Rd2 Bg4 Re4 Qf7 Ng6 Ncd6 h8Q Ke8 Qd4 Qh7 Nh8 Ng7 Qda4 Nc4 Rd4 Qe4
Rr2Q1K1/2n1rN2/P1Rp3n/2Nkqq2/nnr1p1Q1/bRB5/P3BP2/1b6 w - - 0 1 illegal: No possible last move
1q2q3/RNbk2PP/1qp1RBp1/1R4QP/5nr1/B2n4/1r3q2/Qb1r2NK w - - 0 1 legal: proof: c4 a5 g4 d5 f4 h5 gxh5 e6 b4 axb4 d4 g6 f5 Qg5 f6 Qh6 Bh3 Qg7 fxg7 Kd8 Bg2 dxc4 d5 Kd7 d6 Ke8 Bd5 exd5 Kf1 f5 Kg2 b5 a4 c6 h4 c3 e4 b3 a5 b2 a6 d4 a7 b4 e5 d3 e6 f4 e7 d2 h6 c2 h7 f3+ Kh2 f2 h5 f1Q Ra4 b3 Nc3 b1Q Nf3 b2 Ra2 Nf6 Ne2 Nbd7 Ned4 Ne5 Ra4 Nd5 Ng1 Nd3 Nf5 N5f4 Ra5 Kd7 Qg4 d1R e8R Qf2+ Qg2 Rb8 a8Q Rb4 Re6 Be7 Rc5 Bd8 Qa1 Bc7 Rb5 Re4 Nd4 Ba6 Nb3 Rb8 Na5 Rb6 Nb7 Rd4 Bd2 c1Q Bb4 Qce3 Ba3 Rb4 Rf6 Qe8 Re6 Qe3 Qg4 Qa2 Qg5 b1Q+ Ne2 Qbb3 Rf1 Qab1 Ng1 Qf2+ Kh1 Rc4 Rfe1 Qb4 R1e5 Qbc5 Ra5 Rb2 Rf5 Bb5 Ra7 Qb6 Rc5 Ba4 Rb5 Bc2 Qh4 Qa2 Qg5 Qb3 Qe7+ Kc8 Qg5 Bb1 d7+ Kb8 d8B Kc8 Na5 Kd7 Bf6 Qbb8 Nb7 Ra4 Rc5 Qb6 Rb5 Nd5 Qc1 Rg4 Qg5 N5f4
1nR1nq1Q/BRq1P3/2kBb3/K1rnB2P/4Pp2/1p2N1b1/5N2/1Q3nbr w - - 0 1 illegal: No possible last move
1q1nN3/2PB4/r1N2Pp1/b1KRbnQ1/1P3b1R/QBk5/5q1p/1r1q1R1q w - - 0 1 illegal: No extended proof kernel
2q1k3/1Prnr2N/BR3P2/pr2Rr2/3b1B1N/1P3bRq/1Q5p/2QK1nb1 w - - 0 1 legal: proof: h4 c5 d4 g5 c4 gxh4 e4 f5 a4 b5 axb5 d5 cxd5 cxd4 Ra2 fxe4 Ra6 Qd6 Ra1 Qd8 f4 h5 g4 e5 f5 a5 d6 h3 b3 d3 g5 e3 f6 d2+ Ke2 h2 b6 e4 g6 h4 g7 h3 b7 Bg4+ Nf3 Ne7 g8R Rh5 Ba3 Rf5 Rg1 h1Q Rg7 Nd5 Bb2 Nd7 Ra2 Rc8 Rg3 Rc7 Rg5 Qc8 Qc1 d1R Be5 Rd2+ Ke1 e2 Bf4 Ne3 Nc3 Rdd5 Rd2 Rb5 Nh4 Bf3 Rd4 h2 Rb4 Qg2 Kd2 e1R+ Be2 Rbe5 Rb6 Qh3 Ba6 Nf1+ Kc2 Re2+ Kd1 e3 Ne4 Re7 Rh5 Rb5 Ng5 Rf2+ Ke1 e2 Nh7 Bh6 Re5 Bg5 Bd2 Be3 Qb2 Bc5 Bf4 Ne3 Kd2 Nf1+ Kc2 e1B+ Kc1 Re2 Kd1 Bg1 Qc1 Bef2 Qb2 Nc5 Qc1 Bd4 d7+ Kf7 d8Q Nd7 Qb2 Rec2+ Ke1 R7c5 Qc7 Rd5 Qcc3 Ke8 Qd2 Rc7 Qdc1 Bg2 Kd1 Rdc5 Re4 Rf5 Re5 Bf3+
5n2/kPQpPbq1/3qpN2/NR3P2/1q3r2/b1r1nN1K/2R1rB1B/2Q4r w - - 0 1 legal: proof: e4 h5 a4 b5 axb5 c5 g4 e6 gxh5 Ke7 d4 cxd4 e5 d3 Qf3 Ke8 Qd5 exd5 e6 d4 e7 Ba6 Bh3 Bc8 Be6 fxe6 Ra6 Kf7 Ra4 Nc6 Ra1 Nb8 Kf1 g5 Kg2 a5 c4 g4 h4 d2 f4 d1R b4 g3 c5 d3 c6 d2 h6 a4 b6 a3 c7 a2 h7 Nh6 f5 Nc6 h5 Rf1 b7 d1Q b8Q Kf6 b5 Ke5 b6 Kd4 Rh2 Kc5 Bb2 Ba6 c8N Rf4 b7 Qb6 Bc1 Qd6 Nf3 Qb4 Nc3 Ng4 h6 Bg7 Nd5 Bb2 Na7 Rc8 h8B Be2 h7 Nce5 Rb1 a1R Nc6 Ba3 Bg7 Ng6 h8Q Nf8 Be5 Ne3+ Kh3 g2 Qc7 g1Q Nf6 Qg7 Qh6 Kb5 Bd4 Ka6 Na5 Bd1 Be5 Ka7 Rc2 Ra2 Bd2 Be2 Be1 Ra1 Ng5 Bh5 Nf3 Bf7 Bf2 Ra2 Rbb2 Ra1 Qg5 Re1 Qg1 Re2 Qc1 Rab8 Qd8 Rc3 Qc7 Re4 Bh2 Rf4 Rb3 Rc8 Qd8 R8c5 Qc7 Rd5 Rb1 Rd1 Rb3 Rh1 Rbb2 Qbd4 Rb5 Q4b4
1bR1R2n/1Q2rnr1/2PqPK1N/b1NN2BP/2k3b1/3bprr1/1Q1Bp3/8 w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 dxe4 g4 h5 b6 hxg4 b7 c6 f4 e5 b4 e3 b5 e4 b6 Qe7 Bb5 Qe5 fxe5 cxb5 Ke2 Kd7 h4 Ke6 c4 a5 d4 f5 h5 g5 c5 Kd5 c6 a4 Nc3+ Kc4 d5 f4 d6 g3 d7 g2 d8N g4 Ba3 f3+ Ke1 g3 Nd5 b4 Rh4 f2+ Ke2 f1R Ra2 b3 Bb2 a3 Nf3 g1B Ne7 g2 Rh1 Nh6 Nf7 Nd7 b8B Rg8 b7 Rg3 Bc7 Ra7 b8Q Bh2 Bc1 g1R Nd4 b2 Ne6 b1B Ba5 Rff3 Nd5 Bb4 Qd2 Nf8 Nc5 Re7 Qb7 Ng6 Qb2 Bg4 e6 Be1 Bad2 Nh8 Ra1 Bc2 Rb1 a2 Ra1 Nf5 Nh6 Nd6 Rb1 Ndf7 Ra1 Rgf1 Rg1 Bb1 Rg2 Bc2 Rb1 a1Q Rg1 Qa6 Ra1 Qb5 Ra8 Qb4 Rg2 Rg1 Rc8 Bh3 Rf2 Rg7 Rg2 Bb8 Rg6 Rgg3 Rf6 Ng5 Rff8 Bg4 Rfe8 Ngf7 Bc3 Bf2 B1d2 Qa3 Bf6 Be1 Bg5 Bd3+ Kd1 Nd6 Na4 Bf5 Bc1 Ba5 Bd2 e2+ Ke1 Re3 Kf2 Rh3 Kg2 Ndf7 Kf2 Qd6 Nc5 Rh4 Kg2 Rf4 Kh2 Bg4 Kg2 Bf3+ Kh3 Rf6 Kh4 Bg4 Bf4 Rg3 Bfe3 Rff3 Bf4 Nd8 Bfe3 Rgf7 Kg5 Rh7 Bf4 e3 Kf6 Ndf7 Nd7 Bgf5 Bg5 Rg7 Nc5 Bg4+
8/N2PP2q/1bK1Rp2/3BBPn1/1knNn2R/pb4b1/b4r2/n1QNrQ2 w - - 0 1 legal: proof: h4 c5 c4 d5 a4 b5 axb5 g5 b4 gxh4 d4 e5 bxc5 dxc4 d5 Ke7 Qd3 Ke8 Qd4 exd4 Kd2 Ke7 f4 a5 g4 h5 e4 c3+ Kd3 a4 Kc4 a3 g5 d3 g6 c2 c6 Kd6 f5 d2 g7 d1N b6 f6 Kb5 h3 c7 h2 b7 h4 Bg5 c1B Be3 h3 Nf3 Nc6 b8N Qe7 Ba7 Nb4 Ne1 Nh6 g8Q Bf4 Qg4 Bg3 Bg2 Be6 c8Q Nc2 Qe2 Nb2 Be3 Nf7 Nc3 Ng5 Bd4 Nc4 Nf3 Qh7 Rae1 Na1 Nd1 Ra7 Bb2 Re7 Nc6 Re8 Nfd4 Bh6 Rhg1 h1N Na7 h2 Qf1 Nf2 Rh1 Bf8 Bf3 Be7 Bc3 Bd8 Bb2 Bb6 e5+ Ke7 Kc6 Nfe4 Re2 Bg8 e6 Bf7 Rg1 h1B Rgg2 Rhg8 Rh2 Rg6 Rh4 Rh6 Rg4 Rh2 Rh4 Rf2 d6+ Kf8 d7 Ke7 Kb7 Kd6 Qc7+ Kd5 Qf4 Kc5 Qc1 Kb4 Kc6 Ned2 Bd5 Nde4 Nf3 Re7 Be5 Bg8 Nd4 Bf3 Nb2 Bg4 Re3 Bd1 Re1 Bb3 Nd1 Rg7 e7 Rg6 Re2 Rh6 Rg4 Rh1 Rh4 Be6 Qh3 Re1 Qf1 Bg8 Qb2 Nc5 Qc1 Ne3 Bc7 Bc4 Be4 Ba2 Bd6 Bgc4 Bd5 Bcb3 Bf4 Nc4 Re6 Nce4 Bc7 Qh6 Be5 Qh7
Bqn1b3/Nq1r2qB/1b2p1pP/QNnq4/1Q4qk/NPK2Rn1/3P4/1R6 w - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 d5 Bg2 dxe4 Bh3 c5 Bf1 c4 f4 a5 f5 e6 b3 c3 f6 Kd7 Ba3 Ra7 Bb2 cxb2 Kf2 Kd6 Ke1 Re7 fxe7 Kd7 e8B+ Ke7 c4 Kf6 h4 a4 c5 g3 b6 a3 c6 g6 b7 a2 c7 e3 h5 Kg5 h6 f5 Qc1 e2 Rh3 f4 Nc3 b1Q Qd1 f3 Rh4 g2 Rc4 Qe4 Rd4 Ne7 Bf7 Rh7 Rd3 Kh4 Nb1 Bd7 c8N Na6 b8Q Be8 Na7 Nc8 Qb4 Bc5 Bg8 Bb6 Qa5 Qf4 Na3 Nc5 Rb1 a1Q Qc1 Rg7 Qcc3 Qb8 Qcb4+ Qdd4 Re3 Rd7 Bh7 Qg4 Rd3 Qg7 Kf2 Qc4 Ke3 e1Q+ Ne2 f2 Rc3 g1Q Bg2 Qh1 Ba8 Qd1 Nd4 Qg4 Ndb5 Qhb7 Rd3 Qcd5 Rc3 Q4d4+ Ke2 f1N Rf3 Qdf4 Kd1 Ng3 Kc2 Qe7 Kb2 Qg4 Kc3 Qg7+
KQ1BN1R1/4n2q/1QPq1bn1/B3R2b/4PnP1/8/1ppnq1kN/n5rR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Kf2 exf4 Ke1 c5 bxc5 b4 c4 a5 c6 d5 c5 Ra7 e3 Rb7 Bc4 Rb5 axb5 dxc4 Ke2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 f5+ Ke5 h5 d5 b3 d6 h3 Kd5 Kh4 d7 Kg3 c7 b2 b6 a4 c6 h2 b7 c3 e4 a3 Qa4 a2 Qc2 h4 Qd3+ f3 Qa6 f4 Nh3 f2 Qb6 f1Q Be3 c2 Qa7 f3 Qa3 f2 Qb4 Bg7 Nd2 Bf6 Re1 a1N Rd1 Ne7+ Kd6 Rg8 Nf3 Qe2 Nhg5 f1N Qb6 h3 Ne6 Nd2 Ng7 Qf8 d8B Bg4 c8Q Nd7 Kc7 Ne5 Kb8 N5g6 Ne8 Bh5 Ka8 Qh6 b8R Qh7 Rhg1 h1N Nh2 Nf2 Rh1 Nd3 Rdf1 Qh6 Rf5 Ndf4 Re5 Qh7 Bc5 Qh6 Bb4 Qh7 Nf3 h2 Ba5 Qh6 Qcc7 Rg7 Rc8 Qh7 Qbb8 Kf2 g3 Kg2 Qcb6 Rg8 Re1 h1Q Nh2 Qg1 Rc1 Qc5 Rh1 Qd6 g4 Rf8 Bb4 Bh8 Bc3 Rf5 Ba5 Bf6 Rb5 Rd5 Rc5 Rd3 Re5 Rg3 Bc7 Nfd5 Ng7 Ndf4 Rg8 Kh3 Bd8 Rg1 Ne8 Kg2
1r1Bkr2/K2np1Pq/1q1r2R1/4rqQR/pBB1n1NQ/1N4P1/2rP4/6b1 w - - 0 1 illegal: No possible last move, all moves rejected
4k3/PBb1B3/p4QP1/2rNPq1b/r4q2/r1r1rQB1/n3Np2/1qR1K2R w - - 0 1 illegal: No possible last move
2b1N2Q/1kb4b/3Pb1KR/rN1P3p/2bBpRnb/nqR3P1/5Bb1/Q7 w - - 0 1 illegal: No proof kernel
nnQ4b/1n2R1b1/Rpn2BQ1/5P2/Nqb2PP1/RN5K/2kB2p1/q2q2r1 w - - 0 1 legal: proof: c4 f5 b4 a5 h4 axb4 e4 d5 cxd5 g5 g3 gxh4 Na3 f4 Bh3 f3 Bg2 fxg2 Nb1 Ra3 Qe2 Rf3 Qd1 Rf5 exf5 Bg7 Nc3 Bh6 Nb1 Bf8 a4 Kf7 d4 Kf6 g4 e5 a5 c5 f3 h5 Kf2 e4 d6 b6 a6 h3 Kg3 h4+ Kh2 e3 d5 Ke5 d7 c4 f4+ Ke4 d6 e2 a7 e1N a8R c3 Nd2+ Kd3 R1a6 b3 Ngf3 c2 Rg1 b2 Ra4 b1N Rh1 Bg7 Ng5 Ba6 Ne6 Nc3 Rf1 Qe7 d8B Nd5 d7 Nc7 Nf8 Bc4 Ne6 Qb4 Ng5 Ne7 Nf7 Nec6 R8a5 Na8 Nb3+ Kc3 Ra3 Nd3 Qe2 Nc5 Re1 Nb7 Bd2+ Kb2 Qe8 c1B Nd6 Kc2 Qe6 Bcb2 Bf6 Rh7 d8Q Bh8 Be7 Bbg7 Bf6 Rh5 Qdc8 Rh6 Kg1 h2+ Kf2 h1Q Ra6 h3 Kg3 h2 Nb5 Qg1 Nc3 h1Q Na4 Qd4 Qeg8 Qa1 Re7 Qhd1 Qge8 Rh1 Qg6 Re1 Kh3 Rg1
6qk/R2B1rN1/3q3n/N2PpN1n/B2Rnn1P/1n2KPpQ/2Q3bn/5r2 w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 cxd4 e3 hxg4 Ke2 d3+ Ke1 d2+ Ke2 Rh6 Ra6 Rh4 Ra1 Rh8 b3 d5 Nc3 d4 Ba3 e6 Nb1 Bc5 Bh3 d3+ Kf1 Bd4 exd4 Rh7 Kg2 Rh8 Bd6 f6 Be5 fxe5 Kg3 Rh5 Bf1 Rh6 Kg2 Rh8 h4 Kf7 c4 g5 c5 Kg7 b6 a5 c6 e4 b7 g3 b4 a4 c7 e3 Kf3 g4+ Kf4 a3 b5 e2 b6 e1N Qe2 d1N Qc2 d2 Qc4 a2 Na3 g2 Nh3 g1N Nc2 g3 Ne3 Nef3 Ng5 Nd7 b8N Ra7 b7 Nh2 Nc6 Ndf6 b8Q Nc3 Na5 Nce4 Qc2 d1Q Bb5 Nh6 Ba4 Rf8 Nf5+ Kh8 Ke3 e5 Ne6 Nh3 Neg7 Bb7 c8B Nf4 Bcd7 N6h5 Qbc8 Rf7 Re1 Qg8 Re2 Ra6 Rd2 Raf6 Rd3 Nc3 Rd2 Bg2 Rd3 Ne4 f3 Rb6 Rd2 Rb1 Rd3 Qf1 Rd2 Qa6 d5 Rf1 Rd4 Qb6 Rb1 Qd6 Rb7 a1N Ra7 Rf2 Q8c4 Nb3 Qf1 Bh1 Qg2 Rf1 Qh3 Bg2
QBn5/1KBrPp1r/3n2RP/Pnq5/4Q1N1/r2p4/R1bN2r1/1Rn3nk w - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 e5 fxe5 a5 Bd2 axb4 Be3 Qb6 Bc1 Qd8 h4 Bd6 g3 Be7 h5 Bh4 gxh4 Qf6 Bh3 Qe7 Bf5 Qd8 Bg6 hxg6 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kf3 Kf5 a4 b5 c4 b3 e6 b4 e7 g5 e8R d3 c5 d2 h6 g4+ Ke3 g5 Kd4 Kf4 e4 Kg3 e5 Kg2 h7 g3 h5 b2 e6 b3 h6 g4 c6 Ne7 Kc5 d4 c7 Nbc6 Kb6 Na5 Nh3 Qd6+ Kb5 Nc4 Nc3 b1N Ng1 b2 Qe1 d1R Nd5 Nbd2 Nf6 b1N Nf3 Nb3 Bg5 Nc1 Rg8 Bb7 c8Q Be4 Qa6 Bc2 Bf4 Nc8 e7 Qc7 Qa7 N4d6+ Ka6 Qc5 Nd2 Nc3 Ra2 Ncb5 Rf1 Kh2 Rg6 Kg2 Qe4+ Kh2 Be3 g2 Bf4+ g3 Re1 g1R Ng4+ Kh3 Be5 g2 Rf1 Rg8 h8B Rg7 Bg3 Rh7 Re1 Rh1 Bg7 g1N B7e5 Rh2 Bgf4 Rg2 a5 Rb8 Qab7 d3 Qa7 Rb7 Qa8 Rd7 Bg3 Nb3 Bgf4 Ra1 Rb1 Nc1 Bh2 Nb7 Bb8 N7d6 Rab2 Ra3 Ra2 Nf5 Bhc7 Nfd6 Nf6 Kh2 Ng4+ Kh1 Rg5 Nc4 Kb7 Qf5 Rg8 Qc5 Rg6 N4d6+
1nk1B3/2prbQp1/r2P1r1B/4Q1r1/2NnP3/RNqP3n/rN6/5nRK w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 d5 d4 h5 Qd3 hxg4 Qc3 Bf5 Qc4 Bd3 cxd3 dxc4 Kf2 Kd7 Kg2 a5 b4 f5 h4 g3 e4 c3 b6 a4 b5 c2 h5 a3 d5 a2 d6 Ra5 b7 Nf6 b6 Be7 h6 Ng4 h7 Ra7 Nh3 Ra6 Nd2 Nf2 Nc4 f3+ Kg1 f4 Be2 Rf8 h8Q g2 Qg8 Rf6 Qf7 Qf8 Be3 c1N Bd1 Kd8 Ba4 Nb3 Be8 Nd4 Kh2 g1R Bc1 Nbc6 b8N Rg5 Rg1 Kc8 Nd7 Nb8 Nc5 Qg8 Nb3 Qf8 Rb1 a1R Rb2 Qg8 Ra2 Qf8 Ra3 Ra2 Bb5 Qd8 Be8 Qd7 Be3 Qb5 Bd2 Qa5 Bc1 Qc3 Be3 Nd1+ Kh1 f2 Bc1 f1N Nf2 f3 Bd2 Nde3 Nd1 Ng2 Ndb2 Nf4 Be3 Nh3 b7+ Kd8 Bf4 f2 Bb5 Nbc6 b8Q+ Kd7 Qa7 Kc8 Qc5 Nb8 Be8 Nh2 Qb4 f1R Qa5 Rf2 Qe5 Nf1 Qg8 Rf7 Bc1 R2f6 Qf8 Rh5 Bh6 Rg5 Qg8 Bd8 Qf8 Rd7 Qf7 Be7
4N1nQ/1p1b2B1/1Qn2qp1/R2B1bPP/nnb1K3/7n/NP2k2r/R3b1B1 w - - 0 1 legal: proof: f4 a5 g4 h5 a4 d5 c4 e5 cxd5 exf4 g5 Bd7 Qc2 Ra6 Qf5 Bc6 Qg4 hxg4 Nc3 Rb6 Nb1 Rb5 axb5 Bxb5 Kf2 Kd7 d4 Kd6 e4 f5 h4 c5 Ra4 g6 Bd2 g3+ Kf3 g2 Ne2 g1N+ Kf2 c4 Kg2 f3+ Kf2 f4 Bh3 c3 Bg2 c2 Nc1 Qf6 Na3 Nc6 Na2 c1N Bc3 Nb3 e5+ Kd7 d6 Ke6 d5+ Kf5 d7 Kg4 d8Q Nc5 e6 Nh3+ Ke1 f2+ Kd2 f1B d6 Bfd3 e7 Bf5 Nc4 f3 Ke3 f2 e8Q f1B d7 Bd6 Rg1 Bg3 Qb6 Be1 Nd6+ Bfc4 d8B Rh7 Ra3 a4 Rf1 Kg3 Bd5 Rh8 Qf8 Rh7 Ne8 Rh6 Rb3 a3 Bd4 Ba4 Rb5 Rh5 Ra5 Rh8 Nc3 a2 Bc7+ Kg4 Bh2 a1N Bg1 Bab5 Qg7 Na4 Na2 Rh6 Qh8 Kg3 Rf3+ Kg2 Rg3+ Kf1 Rg2 Rh7 Rh2 Rh5 Rh1 Nc2+ Kf3 N2b4 Be5 Rh7 h5 Re7 Bed4 Re2 Bc3 Rh2 Bcd4 Be6+ Ke4 Ke2 Be5 Nd8 Bc3 Bbd7 Bcd4 Ndc6 Be5 Qf8 Bg7 Qf6 Bd4 Bc3 Ra1 Be1 Bg1 Bf5#
7B/1bq1bRp1/1b2PQNn/2rbN1q1/1RP1n3/2Pq3q/pQ4B1/R1K3k1 w - - 0 1 legal: proof: f4 a5 b4 b5 g4 e5 a4 exf4 c4 h5 Ba3 hxg4 axb5 c5 b6 Rh3 b5 Rc3 Bb4 cxb4 dxc3 Ra7 Qd5 Rc7 Qd3 Rc5 Qc2 Rh5 Qd1 Rh8 Kd2 Ke7 e4 Ke6 h4 Ke5 b7 d5 h5 f5 b6 f3 h6 Kf4 h7 Kg3 e5 Kf2 e6 f4 Qa4 g3 Bh3 d4 Bf1 g2 Rh5 b3 Ra2 b2 Rb5 d3 Rh5 Be7 Rh1 Nd7 b8Q Bb7 Qd1 a4 Ne2 g1B Rh3 a3 Qc8 Ndf6 Ng3 Qc7 Qf8 Nh6 Qa8 Rc8 Ra1 a2 Qb3 Ne4+ Kd1 d2 h8B Bd5 Nf5 Bb7 Bg2 Bd5 Na3 b1B b7 Bd3 b8R Be2+ Kc2 d1Q+ Kb2 Qd3 Nh4 Bb7 Ng6 Qd5 Rh2 Qg5 Nc2 Bf1 Bh3+ Bg2 Kc1 Kf1 Nb4 Bb6 Nc6 f2 Qba3 Kg1 Qb2 Bf3 Nce5 f1Q+ Kc2 Bh1 Bg2 f3 Rh4 f2 Rf4 Bd5 Rf7 Bb7 Qaa3 Bd5 Qd6 Bb7 Qd8 Qb1+ Kb3 f1Q Qf8 Qbd3 Qd8 Qh3 Kc2 Qd7 Qf8 Rc5 Qd8 Qc7 Qd4+ Kh2 Qf2 Bd5 Qf6 Qff5 Kd1 Kg1 Rb7 Nd2 Kc1 Qfd3 Ra7 Bb7 Ra4 Bd5 Rb4 Bb7 Bf1 Bhd5 Bg2 Ne4+
1Q2BrnK/3NqPQ1/8/3rP3/3Rq1Q1/p2B1p2/1rbR2rP/qkNn3q w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 Kd3 Kf7 Ke4 Ke6 c4 d5+ Kd3 Kf5 b4 a5 b6 g4 e3 g5 c5 g3 b7 g4 c6 a4 b5 g2 c7 g3 b6 a3 Ne2 g1R Nd2 g2 Rb1 Qe7 Rb4 Nc6 b8Q Na5 b7 Nc4 Qa7 Rb8 Nc1 Bd7 Be2 f1Q c8B Qe1 Ne4 Q1h4 Qda4 Nb2+ Kc2 d3+ Kc3 d2 Kd4 d1R+ Bd3 Be6 Bd7 Rd2 Bb5 Nd1 Be8 Rd8 b8Q Rb2 Rc4 Bd7 Qab4 Ba4 Rc2 Rd6 Rd2 Bc2 Nf6+ Qe4+ Kc5 d4 Qg7 Qg5 Nd7 Rd5+ Kc6 Qe7 Kc7 Re1 Rf1 g1Q Kc8 Qe5 Kd8 Qh1 Rg1 Re2 Rg4 Rg2 Qc4 Nh6 Qcc8 Rf8 Qc4 Ng8 Qcc8 Rc5 Rh4 Ke6 f5+ Kd5 f6 Qd6 f7 Qde6 Bf1 d3 Be2 Kc4 Rg4 Qd4 e4 Kc3 e5 Qdd5 Rd4 Qe4 Qa6 Rd5 Qa4 Rb6 Bf1 Kb2 Qc4 Kb1 Be2 Qc6 Qa4 Qb7 Qc4 Nh6 Ke7 Rb2 Kf6 Qc7 Qa6 Qa7 Qe6 Qc5 Qeg4 Ng8+ Kg5 Qe7+ Kh5 Qf4 Kg6 Qe3 Kh7 Qe4+ Kh8 Ka1 Bf1 Kb1 Re2 d2 Rf2 Nc3 Be2 d1Q Bd3 Qdf1 Rd2 Nd1 Ba6 Qc4 Bb5 Qa2 Bd3 Qa1
n2k1b2/7Q/Pn1B1N2/2p1bR2/rp2b2P/r1NPN2r/1rRQ4/b1B1Kr2 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 h5 Qb3 f5 Ng1 f3 Qd1 f4 Bg2 Qg5 Bh3 Qf5 gxf5 Na6 Bg4 hxg4 Kf2 Nb8 Kf1 Na6 Ke1 Nb8 a4 b5 e4 g5 h3 c5 e5 b3 d6 b2 f6 g3 d3 f2+ Kf1 g2+ Ke2 f1R f7+ Kd8 a5 f3+ Kd2 b4 d7 f2 e6 g4 Ra2 g3 Qf3 Ne7 Qe3 Nd5 Nf3 g1B Ne5 g2 Nc3 b1R Nc4 Bb7 Rc2 Nb6 h4 Rb2 Qf4 Na6 Ne3 Nc7 Qf5 Rh6 Qh7 Be4 Rh3 Bh2 Rf3 g1B Rf5 Be5 Ke2 Bfd6 f8B Ra7 Kd2 Nca8 Ke2 Rg6 Kd2 Rg3 e7+ Kc7 e8N+ Kd8 Nf6 Rh3 Bh6 Bgh2 Bf4 Bf8 Ke2 Bd4 Bd6 Bde5 Bd2 Ra1 Bc1 Ra3 Kd1 f1R+ Kd2 Rb7 a6 Bd4 Ke2 Bhe5 Kd2 Na4 Ke2 Rb5 Kd2 N4b6 Ke2 Rf2+ Ke1 Rf1+ Kd2 Bd5 Nb1 Rba2 Rb2 Rba5 Ke2 Bh1 Rd2 Ba1 Nc3 Rf2+ Ke1 Be4 Qh5 Rf4 Qe2 Rff3 Rc2 R5a4 Qd2 Rf4 Bb8 Ke7 d8Q+ Kf7 Qc8 Ke7 Qb7+ Kd8 Bd6 Rb2 Qh7 Rf1+
5nQK/1rRn1bb1/RNn2QP1/4Nn2/2pP4/rP2B3/2Bp3k/1brbR3 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 c3 gxh4 Rh3 d5 Rh1 d4 Kf2 Bb4 Ra6 d3 Ra1 Qd4+ cxd4 Bxd2 Kf3 Kd7 Ke4 Ke6 g4 a5 b6 f5+ Kf3 h5 e4 c5 b7 h3 g5 h2 e5 c4 g6 h4 b3 a4 Ra2 a3 Qc2 h3 Be2 Rh7 Qb2 Nd7 b8R Ngf6 Qc3 Nf8 Rb4 Rb7 Ra4 N6d7 Rc2 a2 Qb4 a1N Raa2 Ra3 Rcb2 Nc2 Qc5 Nb4 Rc2 Nc6 Kf2 f3 Kg3 f2 Kh4 f1R Kh5 f4 Kh6 Kf5 Kg7 f3 e6+ Kf4 e7 Kg3 e8Q f2 Nf3 Bh6+ Kh8 Kg2 Be3 d2 Qb4 Rc1 Qd6 f1N Bd3 Ng3 Qf6 Nf5 Re1 h1B Ne5 Kh2 Nc3 Bf3 Na4 Bd1 Be4 Ndb8 Qef7 Be6 Nb6 Nbd7 Qg8 Bf7 Bd3 Kg2 Rcb2 h2 Bc2 h1B Ra1 Kh2 Rba2 Ra5 Ra4 Be4 Rb4 Ra6 Ra5 Bd3 Rc5 Ra3 Ra4 Be4 Ra6 Bg4 Bd1 Bb1 Bc2 Bf3 Ra7 Bd1 Ra6 Ncb8 Rc8 Nc6 Rc7 Bg7+
k1bBQb2/q5r1/K3bP2/1rp1q3/7P/N1bP1rbR/N1BpR2B/Q6q w - - 0 1 illegal: No possible last move
1Qn1q3/r1qR1R1P/1bpB1q2/1BN1QP2/N2qPK2/q1p4N/2k3b1/q5b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 c4 d5 g5 dxc4 g6 hxg6 Bg2 g5 Bf1 g4 f3 e5 Bh3 b5 Bg2 Ra6 Bf1 Rf6 Nh3 f4 Ng1 Rf5 exf5 e4 Qe2 e3 Qd1 Na6 Ne2 Nc5 Ng1 Ne4 fxe4 Bd6 Bg2 Bc5 Bf1 Bf8 Ke2 Kf7 a4 Kf6 d4 g5 h4 c6 h5 b3 h6 b4 a5 b2 h7 c3 d5 Ke5 a6 f3+ Kd3 f2 a7 b3 a8N g3 d6 g4 d7 e2 Ke3 e1Q+ Ne2 g2 Rh3 g1Q Ra3 g3 Rh2 g2 Ra2 Ne7 Ra6 Qc7 Rb6 Ba6 d8Q Nc8 Q1d2 Bc5+ Kf3 Bd3 Rb4 Bb6 Na3 b1Q Nc2 b2 Ncd4 Qa1 Nf4 b1Q Nde6 Qa3 Nh3 Qe3+ Kg4 Qh6 Nc5 Qf6 Qb2 Qba2 Qe7+ Qae6 Bg5 Ba6 Bb5 f1Q Bh6 Qc4 Bf4+ Kd4 Bd6 Qga1 Kf4 g1B Rg2 Qef7 Rg7 Qe8 Rf7 Rg8 Qh2 Rg2 Rb1 Ra2 Rd1+ Qd3 Ba4 Kc4 Qe5 Qd4 Rd3 Kb4 Rd2 Bf1 Bb5 Bg2 Rd3 Qb3 Rd1 Ra7 Qg3 Ba5 Nb6 Qba3 Nba4 Bb6 Qg8 Qee6 Qd8 Qe8 Rd2 Ne7 Qb8 Nc8 Nb7+ Kb3 Rd3 Qfe7 Nbc5+ Kc2 Rd1 Qe7d8 Bf8 Qc4 Rdd7 Qf6 Bd6 Qd4
5r1N/5P1R/nb2Bnp1/2N3B1/1Q1q4/2R4K/1PnPk1pq/Qqqq1q1B w - - 0 1 illegal: No proof kernel forced: bxDB
K1Br1R1q/2bRN3/1q4Rb/2Q1P2q/1P1pPB2/1b4n1/p5kN/qbQ4b w - - 0 1 legal: proof: d4 g5 b4 e5 e4 exd4 a4 a5 f4 Nc6 h4 gxh4 c3 Ne5 fxe5 b5 c4 bxa4 Rh2 Rb8 Rh1 Rb5 cxb5 Bc5 Bc4 Be7 Bf1 Bf8 Kf2 c5 Kf3 d5 g4 h5 b6 f5 b7 Kf7 b8R Kg6 g5 a3 Kf4 a4 Ra8 a2 Qd3 a3 Qd2 h3 Bc4 h4 Qf2 Kh5 g6 d3 g7 h2 Qg3 d4 Bb2 d2 Qh3 d1Q Rb8 Nh6 g8Q Be6 Qd3 h3 Qe2+ Kh4 Bb5 c4 Ra8 c3 Rb8 c2 Ba6 c1B+ Qe3 Qb6 Bc8 Qh5 Nc3 Bb3 Qc4 Bd6 Qc5 Bc7 Nd5 Rd8 Ne7 Bd2 Rd1 a1Q Bc1 a2 Rf1 Nf7 Rb7 Nd6 Rf2 Qh8 Rg2 Qh5 Rg6 Qh8 Kf3 f4 Ke2 f3+ Kd3 f2 Qe1 Bg5 Nf3+ Kg3 Bf4+ Kg2 Qec1 Nf5 Rf1 h1B Nh2 Ng3 Ra7 Bh6 Rb7 Bc2+ Kc4 Bb1 Ra7 Bb8 Rd7 Bc7 Ng4 h2 Kd5 Qa7 Kc6 Qb8 Rd1 f1B Rd3 Qa7 Rf3 Bc4 Rf1 Qa5 Kb7 Qb6+ Ka8 Be6 Be3 Bc4 Rf8 Bb3 Bf4 Kf3 Qb2 Bg2 Rdd6 h1Q Rd7 Qh5 Qbc1 Bh1 Nh2+ Kg2
Bqrrk2N/5p2/1RP1nP1N/rrP2q1p/7r/3n3Q/1QKRnn1N/2B5 w - - 0 1 legal: proof: h4 g5 d4 gxh4 b4 a5 e3 axb4 d5 Bg7 Nh3 Bh6 Ng1 Bf8 e4 b6 Qe2 Bb7 Qd1 Bg7 Ba3 Be5 Bc1 Bd6 e5 Bc6 exd6 cxd6 dxc6 d5 Bg5 d4 Bf4 Qc7 Bc1 Qd8 Kd2 h5 g4 e5 a4 d5 f4 h3 c4 e4 a5 e3+ Kc2 e2 f5 e1N+ Kb3 h2 f6 b5 g5 d3 a6 d4 c5 d2 g6 d3 a7 Ne7 g7 Na6 g8N Ng6 Nc3 Nf4 Qg4 d1N Qg7 d2 Ra4 Nc7 Ra6 Nce6 Nce2 Qb8 Nh6 Nf2 Qg4 d1R Nf3 Rd8 Qh3 Ned3 Kc2 Rg8 Rg1 h1R Rg2 Rc8 Nh2 b3+ Kc3 b2 Kc2 b1R Rb6 Ng6 Nf4 b4 Nd5 Rd8 Ne7 Ngf4 Ng6 Ne2 Nh8 b3+ Kd2 b2 Kc2 Nc3 Be2 Rf8 Bg4 Ne2 Bf5 N6f4 Bc8 Ne6 Ba6 Qe5 Bc8 Qf5 Bb7 Rac8 a8Q Ra1 Bf4 Ra5 Bc1 Rb5 Qa1 b1Q+ Kd2 Ra8 Qb2 Raa5 Ba8 Rg8 Qe5 Qb4+ Kc2 Qbf4 Qb2 Qb8 Rg3 Rg1 Rf3 R1g4 Rg3 Rh4 Rg1 Rgg4 Rd1 Rgd4 Rd2 Rc8 Qb1 Rd5 Qb2 Rdd8
r1k3rb/b4b2/1Pqqq1bN/1RQr3P/P7/R3BK2/4Qp1p/r3B1NB w - - 0 1 illegal: No proof kernel
1Q5r/1br4k/2P1B3/b3NpBb/N3P2b/rP1N1p1r/1q3Q1r/4KRrR w - - 0 1 legal: proof: d4 b5 h4 f5 g4 e5 f4 c5 a4 cxd4 g5 bxa4 Rh2 exf4 Rh1 Nf6 gxf6 g5 Kd2 g4 Ra3 Na6 Ke1 Nc7 Ra2 Ne6 Ra1 Ng5 hxg5 Ba3 Nf3 Bc5 Ng1 Bf8 c4 Kf7 e4 Kg8 b3 d5 g6 a5 c5 h5 c6 h4 g7 h3 f7+ Kh7 g8N a3 Bd3 g3 Rh2 a4 Rha2 g2 Nd2 h2 Rb1 h1R Rab2 a2 Qf3 a1R Qg4 a3 Qg5 a2 Nf1 Rh3 Ne2 g1B Nfg3 Ra3 Nc3 Be7 f8Q Bb7 Bc2 d3 Qe8 d4 Qg4 Bh4 Qe2 Qf6 Nh6 Ra7 Qb8 d2+ Kf1 d1B Nh5 d3 Qf2 d2 Na4 Bg4 Bd3 f3 Nf4 Bh5 Bc4 Rh2 Rc2 Qb2 Nf7 Rh3 Nd3 d1R+ Qe1 Bb6 Rf2 Rd2 Nfe5 Re2 Bg5 Rc2 Rd1 Rac1 Bd5 a1R Be6 Ra3 Rh2 Rb1 Rh1 Rch2 Qe3 Bc8 Re1 Rc7 Qf2 Bb7 Rd1 Rc1 Ke1 Rc2 Qg3 Rcg2 Qf2 Rgg3 Rf1 Rg1 Rb1 Bc8 Kd1 Bb7 Re1 Rg4 Rh1 Qd4 Kd2 Rg1 Rf1 Qb2+ Ke1 Ba5+
1r2r3/k2rQ3/1p2N2P/qR1q1KnB/4nP1b/P3Rb2/R2ppn1N/1B2Q3 w - - 0 1 legal: proof: b4 c5 d4 cxd4 f3 g5 b5 g4 b6 f5 e3 f4 exf4 axb6 Bb2 b5 Bc1 b4 fxg4 h6 g5 Bg7 g4 Qc7 g6 Bf8 g7 Qd8 g5 Ra6 g6 Rd6 Be3 Rd5 Bf2 Ra5 Bh4 Ra8 Bg5 hxg5 Ke2 d5 Kf3 Kd7 Kg4 Kc6+ Kg3 Kb6 h4 e5 c4 b3 h5 g4 c5+ Ka7 a3 b6 c6 b2 c7 d3 h6 d4 Qa4+ Na6 Qe8 d2 Ne2 d1N Qe7 e4 Rh4 d3 Qf7 e3 Ra2 Rb8 Rh3 Qd5 Nd2 b1R Nf3 Nf6 g8B Nf2 g7 Be7 Nh2 Nh7 Nd4 Nc5 Ne6 Rd1 Be2 Ng5 Bh7 Re8 g8R Bb7 c8Q Nce4+ Kh4 g3 Qc3 g2 Bh5 g1Q Qe1 e2 Re3 Bd8 Qe7 Qa5 Rf8 Qh1 Rf5 Rd2 Qc1 Qd1 Rb5 Qb3 Qe1 Qd5 Rh3 Rc2 Re3 d2 Bf5 Rc7 Bh7 Nc5 Bb1 Rd7 Bf3 Ba8 Kh5 Nce4 Kg6 Bb7 Bh5 Nh7 Qg7 Bh4 Qe7 Nhg5 Rg3 Nd6 Qd8 Qb3 Re3 Bf3 Qe7 Nde4 Kf5 Qd5+
7q/2pR4/Bb1BnQnp/b1PPQ2R/b2qP3/3p2r1/N4K1R/2rk1Nr1 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 g5 hxg5 b5 axb5 Qf6 Ra5 Qe7 Ra1 Qd8 c4 d5 c5 Qd7 Qa4 Qe7 Qc4 Qd8 d4 dxc4 b4 Nd7 Ra3 Nb8 Rd3 cxd3 e4 Kd7 g4 Ke6 g6 a5 b6 f5 b5 h6 g7 f3 b7 f4 g5 f2+ Kd2 a4 d5+ Ke5 g6 Kd4 b6 a3 Nh3 f3 Bg2 f1R Nf2 a2 Nc3 a1B Bh3 Ne7 g8Q Bd7 g7 Rg1 Ng4 f2 Rh2 f1Q Na2 Ba4 Qe6 Nd7 g8R Ng6 b8Q Bg7 b7 Ndf8 Ne3 Qff6 Nf1 Qe5 Ke1 Bc3+ Bd2 Ba5 Kf2 Bb6 Qf6 Ne6 Bf4 Rg3 Rf8 Rg8 Rf7 Kc4 Rd7 Kb3 Bg4 Kc2 Rh5 Qc3 Bd6 Qe8 Bf5 Kd1 Qc8 Ra5 b8R Rb5 Qe5 Rb1 Qd8 Rc1 Qdf6 Qc4 Ra8 Bh8 Ra5 Qa8 Rb5 Rg1 Rb2 Qd4+ Kf3 Qf8 Rbh2 Qg7 Bg4 Qh7 Bf5 Bg7 Bh3 Qh8 Qg3 Qa1 Qff4 Bc3 Re7 Ng5+ Kf2 Ne5 Bc8 Bca5 Ba6 Ne6 Rd7 Qc3 Qgh4 R8g3 Qhf6 Ng6 Q4e5 Qd4+
2q1K3/kPb1nR1Q/5B1b/N2q2Rn/pBpqNP2/n2B4/Pp3r2/Q4r2 w - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 g5 Rh2 d5 Rh1 dxc4 b3 gxh4 bxc4 b5 Ba3 b4 Bb2 Bd7 Bc1 Bb5 cxb5 Qd7 Bd3 Qd4 Bf1 Qd8 Ke2 Kd7 Ke3 Kc8 Kf4 Kb7 Kg5 e5+ Kf5 a5 Ke6 h5 Kf7 c5 g4 c4 d4 b3 g5 e3 f3 b2 d5 h3 b6 e4 g6 a4 g7 h2 d6 h4 d7 e2 Bg5 e1B Qc2 h3 Be2 e3 Qd2 Nc6 Bf6 Nce7 Bd3 e2 Qd1 Bg3 Nc3 e1N Ne4 Bc7 Ne2 Qc8 d8B Nc2 Ke8 Na3 Rf1 h1Q Nc1 h2 Nb3 Qg1 Na5+ Ka6 b7 h1Q Bc3 Ka7 Bb4 Qd4 Rg1 Rh7 Rg5 Rh2 Qg1 Rf2 Rf1 Qhh3 Qh1 Qhe6 Qh7 Qed5 Qh1 Nh6 g8Q Nhf5 Qgh7 Bh6 Qg1 Re2 Rf2 Ng3 Qa1 Nh5 Rfg2 Rf2 f4 Kb6 Rf5 Ra6 Rg7 Ka7 Rff7 Rg6 Rg8 Rg1 Rg5 Qcf5 Rf6 Rgf1 Rf7 Ng6 Bf6 Ne7 Qh8 Qg4 Qh7 Qc8+
r6Q/pp2qn1Q/p1Kb4/1BBn2RP/2P5/1q1Pb1RN/kN1r4/3b2rB w - - 0 1 illegal: Other
8/2n3q1/R1NP2pN/1Q1R1p1P/Brp4k/2bb2RP/1rQKBbb1/n3n3 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 f4 b5 a4 e5 c4 dxc4 Ba3 exf4 axb5 Qe7 b6 Qd7 b5 Qd8 Bb4 axb4 e4 Ke7 d4 Kf6 h3 Kg5 b7 f5 b6 c5 d5 c3 d6 b3 e5 c4 e6 g6 e7 b2 e8B c2 Nd2 b1N Ra3 c1B Nb3 f3 Bb5 f2+ Ke2 Nh6 Qe1 Qd7 Ba6 Nd2 Qd1 Nf7 Bb5 Bg7 Nd4 Kh4 Qb3 Ra4 Qc2 Ng5 Nc6 Na6 b8R Bc3 b7 Nc7 Ra8 Nb3 b8Q Nf3 Ra6 Rb4 Ba4 Na1 Qb5 Ne1 Kd1 Rb2 Be2 f1B Rh2 Qg7 Nf3+ Kg3 Rb3 Bb7 Ng5 Kh4 Nf7 Be3 Nh6 Bf2 Rg2 Rb8 Rg3 Ba8 Rd3 Rb6 Rd5 Bg2 Qa5 Rb4 Qb5 Bf6 Kd2 Be4 Rg3 Bd3 Nd8 Bb7 Rd4+ Bbe4 Rd5 Bg2 Nc6 Bc3+
1QKR4/b1p2rN1/B1kb1BP1/1r1b1n1P/2P3r1/5R2/1p1p2Q1/N1n2Brq w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 b4 e5 dxe5 axb4 e4 g5 exf5 gxf4 g5 Bd6 Qf3 Bf8 Qg4 hxg4 Kf2 d5 c4 Kd7 a4 b5 h4 g3+ Kf3 g2 Kg4 f3 f6 f2 Kf5 b3 f7 d4 a5 b4 g6 b2 h5 b3 a6 d3 a7 d2 e6+ Kc6 Rh3 Qe7 Nf3 g1B Nh4 Rh7 Na3 b1R Rf3 Na6 Bb2 Nb4 Nc2 Na2 Bf6 Rb8 a8Q+ Bb7 Ke5 b2 Nf5 Nc1 Ng7 Qb4 e7 Nh6 Ke6 Nf5 Ra7 Qc3 Na1 Qd4 Ra5 Qh4 Rd5 Qh3 Rd7 Qh1 e8B Be7 f8Q Bd6 Bh3 f1R Rd8+ Kb6 Kd7 Bd5 Qh8 Bgc5 Qg8 Rg1 Bf1 Rg4 Qf8 Rb7 Kc8 Bf2 Bd7 Kc5 Bc6 Rb5 Bb7 Bg1 Qb8 Be3 Ba6 Kc6 Qe7 Bb6 Qe2 Ba7 Ne8 Rf7 Ng7 Nb3 Qf2 Rd1 Qg2 Nc1 Be2 Rg1 Bd3 Nh6 Bf1 Nf5
4BR1b/N1n4n/q2k1p1p/1P1p1Pb1/2nrP1K1/n1BR1Q2/5RN1/1qQ3r1 w - - 0 1 legal: proof: h4 e5 d4 exd4 c4 g5 a4 gxh4 c5 b5 cxb6 Ba6 b4 Bb5 axb5 c5 Ra3 cxb4 Ra6 Bd6 Ra1 Bf8 g4 Ke7 e4 a5 Ke2 d5 Kf3 d3 b7 h6 g5 h3 g6 b3 g7 d2 Ba3+ Qd6 Be2 a4 Qe1 d1N Bb4 a3 Nc3 b2 Ra2 b1N Kg4 h2 f4 Na6 b8R Nb2 f5 Nc4 Na4 Nc7 Bc3 Qa6 Nf3 Kd6 Nb6 Be7 Qc1 Bg5 Rd1 h1Q Nh4 Qf1 Rb2 a2 Rd3 a1B Rf8 Nba3 Ng2 Qg1 Bf3 Rc8 Rf2 Nf6+ Kg3 Qe1 g8Q Nh7 Kg4 Ra8 Qg7 Rg8 Qd4 Qd1 Qde3 Qc2 Be2 Qb1 Qf3 Rg6 Nd7 Bb2 Nb8 Ra7 Nc6 Rg8 Bd2 Bh8 Bc3 f6 Bd1 Qc8 Be2 Ra4 Na7 Qa6 Kg3 Qb6 Ne3 Nd2 Qfh1 Rd4 Bh5 Ndc4 Qf3 Qa6 Be8 Bh4+ Kf4 Rg1 Ng2 Bg5+ Kg3 Qb7 Kg4 Qa6
2Q2rb1/p2nb1N1/1p1RB2q/1NB1r3/2P1KbnP/1p2bP2/R1Q4R/1q2k3 w - - 0 1 legal: proof: b4 d5 a4 c5 e4 cxb4 c4 h5 g4 f5 exf5 d4 gxh5 Qa5 Qf3 Qxa4 Qd3 Qa2 Qc3 dxc3 Ke2 Kd7 Kd3 Kc6 h4 Kc5 h6 g5 f6 e5 f7 g4 h7 c2 f3 b3 Nc3 Kb4 Rb1 g3 Ke4 b6 d4 g2 d5 Be7 f8R Nh6 d6 Be6 d7 Ng4 d8Q Bg8 Qd1 Nd7 Rf6 Rf8 Rb2 Qb1 Nge2 g1B Nf4 Be3 Ne6 Re8 Bd2 c1B+ Qc2 Bf4 Be1 Bce3 Bh3 Rf8 Ng7 Re8 Kf5 e4 Ra2 Qc1 Bf2 Qd2 Rh2 Qd6 Rf8 Qh6 Rf6 Rf8 Ne2 Re8 Nd4 Rf8 Qb1 Kc3 Qc1+ Kd3 Nb5 Re8 Ra5 Ke2 Rd6 Bd4 Ra3 e3 Ke4 Rf8 Qb2+ Kd1 Ra6 e2 Ra2 e1Q+ Be3 Qf1 Qc2+ Ke1 Bg1 Nge5 Be6 Bde3 Ra6 Ng4 Ra2 Bc1 Bd4 Bce3 Bc5 Qg2 Qd3 Qb2 Qc2 Qb1 Ra5 Bf7 Ra2 Rhg8 h8Q Re8 Qh7 Rgf8 Qf5 Bg8 Qf7 Rd8 Qe8 Rb8 Qc8 Rf5 Qc6 Rbf8 Qc8 Re5+
bBQ1qN2/1q6/4r1nP/P2np1K1/p1pR4/RbBQbq2/1RPNq3/3k4 w - - 0 1 legal: proof: e4 h5 g4 hxg4 d4 e5 dxe5 d6 e6 Qe7 e5 Qd8 e7 Kd7 e8R Kc6 a4 a5 e6 b5 e7 bxa4 b4 a3 Bc4 a4 Be6 Ra5 bxa5 fxe6 Kd2 Kc5 Ke3 Kc4 Kf4 c5 h4 g5+ Ke4 a2 f4 d5+ Ke5 g3 h5 g4 h6 d4 f5 g2 Kf4 e5+ Kg5 d3 f6 d2 f7 g3 Ne2 g1Q Nec3 g2 Qf3 d1B Qb7 Qf1 Ne2 g1Q+ Ng3 Bf3 Bf4 Nf6 Qc7 Nd5 Nd2+ Kc3 Qb6 Be6 Qa7 Nd7 Qa6 Qgf2 Nh5 Q2e2 Nf6 Qb8 Rb1 a1Q Rh3 Qab2 Nh7 Q2b7 Rd8 Q8a8 e8Q Be7+ Nf6 Nf8 Rb2 Ng6 f8B Qab8 Rd6 Q8a8 Qec6 Qe8 Qc8 Bd8 Be7 Bb6 Nh7 Rf8 Be3 Rf6 Nf8 Bf7 Rd7 Re6 Bd6 Bg2 Bb8 Qff3 Bf2 Bg8 Be1 Ba7 Ra2 Bb6 Ra3+ Kb2 Qd3 Kc1 Rh4 Kd1 Rb4 Ne3 Ba7 Qg3+ Rg4 Qd5 Qca6 Rd6 Qc8 Qdf7 Re7 Ba8 Bb8 Qgf3 Rb7 Ba7 Rb5 Q7b7 Rb2 Bb3 Rc4 Nd5 Nb1+ Kc1 Bb4 Re6 Nd2 Kd1 Bc3 Bb6 Rg4 c4 Rh4 Bg1 Rd4 Be3+
1qN3B1/1QN3Q1/2KPn2r/R3npp1/1b3k1P/2Q3rP/2pqq3/2qRB2r w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 f4 exf4 h4 dxc4 Qc2 Bh3 gxh3 h6 Qg6 h5 Qg4 hxg4 Kf2 Ke7 e4 Kf6 d4 a5 b4 g5 b6 c5 b7 g3+ Kf3 g2 d5 Ke5 b5 a4 b6 a3 Nd2 a2 Ne2 g1Q Nc3 f6 Nb5 c3 Bc4 c2 Nc7 Nd7 b8Q Rh6 b7 Qe1 Qc8 Ne7 b8Q Nf5 Qbb7 Ra3+ Bb3 Ng7 Nc4+ Kd4 e5 f5 e6 Qd2 e7 Ne6 Nb6 Ke5 e8Q c4 Qg6 c3 Rd1 Bb4 d6 Qe8 Bb2 c1Q Qh7 Nd8 Bg8 Ne6 Qca8 Qb8 Nc8 Rb3 Qaa6 Ra3 Qac6 Rb3 Ba3 c2+ Qc3+ Qd4 Kg2 f3+ Kg3 f2 Kf3 f1R+ Ke2 Rg1 Qg7+ Kf4 Bb2 Qf2+ Kd3 Qcd2+ Kc4 Rh1 Kb5 Qfe2+ Kc6 Ra3 Qc5 Rg3 Bc3 Qd4 Be1 Qdd2 Rab1 a1Q Qcc3 Qb2 Ra1 Qbc1 Ra5 Ne5+
Q1BQ3q/3b1K2/3p2Bb/R7/rq1bpp2/1P2k3/PNQ1PN1R/2rnr1b1 w - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 e5 c4 bxc4 f4 c5 b3 cxd4 Qc2 a5 Nd2 e4 Bb2 a4 Qd1 a3 Nb1 axb2 Qd2 Nc6 Qd1 Ne5 fxe5 Ra5 Kf2 Ra4 Ke1 Ra8 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 Kf5 g5 h4 d3 e6 Kd4 e7 d2 e8B c3 h6 g4 h7 c2 h5 c1B h6 g3 Rh2 g2 Nh3 g1B Nf2 d6+ Bd7 Nf6 Bg2 Bg7 Nc3 b1Q Qc2 d1R Bf3 Re1 Bh5 Ng4 Bg6 Ke3 Na4 Bd4 Nb2 Ra4 Rh5 f6 Ke6 f5 Kf7 Rg8 Be6 Bd7 h8Q Qa8 h7 Rc8 Qe8 Rc3 Qe7 Qh8 Qe8 Bd2 Qd8 Qd1 Rg5 Bc1 Qa8 Qd2 Rh5 Rc7 Rh2 Qc3 Rb1 Bd2 Rc1 Qb4 Qd8 f4 Rd1 B2c3 Bef5 Bg7 Rd5 Bcd4 Ra5 Bh6 Be6 Nf6 Qa8 Nd5 Qd8 Nc3 Bh3 Qe5 h8Q Nd1 Qa8 Rc5 Qhd8 Qh8 Be6 Bc6 Bc8 Bd7 Qb1 Rc1 Qc2 Qa3 Ra6 Qc5 Ra5 Qb4
6Qb/q1P1p2r/7N/1R2Qr1q/1Pnp2pB/1K3QN1/2bbP1qk/1BR3b1 w - - 0 1 legal: proof: g4 f5 d4 fxg4 b3 b5 a3 b4 axb4 c5 Bg2 cxd4 Bh3 Ba6 Bf1 Bc8 Bg2 a5 Bb2 h5 Ra4 h4 Ra1 a4 Qd3 a3 Qg3 hxg3 Bc1 Na6 Bh3 Nc5 Bf1 Na4 bxa4 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 d5 f4+ Ke4 c5 g5 a5 g2 h5 d3+ Kb3 d4 f5 a2 h6 g3 h7 d2 f6 Kf4 f7 g4 c6 Bg7 f8Q+ Bf5 a6 Qc7 a7 Nf6 Nc3 Nd7 Rh5 Nb6 Nf3 g1Q Bg2 Nc4 Qg8 Rf8 a8Q Qa7 c7 Bf6 Rb1 a1B Ne4 Bc3 Nfg5 Qf1 Bf3 g2 Ng3 g1B Nf7 Qg2 Nh6 Bg6 Ra1 Be5 Be4 Rf5 Bb1 Bg7 Ra2 Bf6 Rc2 Bg7 Bb2 d1Q Bc1+ Bd2 Rg5 Qdf1 Qb7 Qh2 Rc3 Qfg2 Qba8 Rf7 Rb5 Qh5 Rc2 Rf5 Qf3+ Kg5 Rc3 Kh4 Rc2 Kh3 Rc3 Be1 Bg5 Kh2 Bh4 Bd2 Rc1 Rf7 Qd8 Rhf8 Qd6 Bh8 Qe5 Rf5 Rc3 R8f7 Rc1 Bf6 h8Q Rh7 Qg8 Bh8 Qf6 Rd5 Qg5 Be4 Qgf6 Rf5 Qe5 Bc2+
Q5K1/1bPPPp2/1NqBqn2/1pr4q/1N4rR/2B3bp/RqN5/3k2bQ w - - 0 1 illegal: No possible last move
2R1KQ2/2p5/rp3r2/2Pn1bn1/n2RN1kB/1NQB1rqp/P1Q3Pq/6n1 w - - 0 1 legal: proof: d4 e5 b4 a5 f4 exf4 h4 axb4 e4 g5 hxg5 f5 Nh3 Bd6 Ng1 Be5 dxe5 fxe4 Kd2 Kf7 c4 Ke6 g6 Kf5 c5 h5 g7 d5 e6 b6 e7 f3 Ke3 d4+ Kd2 e3+ Kd3 h4 Kc4 h3 Kb5 e2 e8Q e1Q Bh6 b3 Qe7 d3 Qee2 b2 Bd2 f2 Qa4 Qd6 Qe8 Qh2 Nf3 Nh6 g8Q Nc6 Qa3 Nf7 Ng5 Ra6 Qef8 Nb4 Ne4 Nd5 Bg5 d2 Kc6 d1N Bh4 N1c3 Bd3 f1R Qh7+ Kg4 Nbd2 b1N Nb3 Rf3 Rf1 Nd2 Rd1 Qeg3 Qc1 Na4 Qc3 Ng5 Rf2 Bb7+ Kd7 Bc8+ Ke8 Rf6 Rf5 Ndf3 Re5 Bf5 Re6 Rf7 Rd6 Rf6 Rd8 Ng1 Qg6 Rh7 Rc8 Rhf7 Qh7 Be6 Qf5+ Kh5 Qf2 Kg4 Qfc2 Bf5 Bb5 Be6 Rd4 Rf3 Be2 Rf6 Bd3 Bf5
n1K5/P3Pq1N/2n1P2k/1qQ1R3/1q1b2Bp/p1R3q1/QBbp1Rbr/3N4 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 b5 a4 e5 fxe5 c5 Bg5 cxd4 Bh6 bxa4 Bc1 a3 Rh3 a4 Rh1 Ra5 bxa5 Bc5 Kd2 Be7 Ke1 Bf8 Kd2 h5 Kd3 d5 e4 f5 g4 Kf7 c4 Kg6 a6 h3 e6 h2 a7 a2 e7 f4 c5 a3 e5 f3 c6 f2 g5 Qa5 e6 Bb7 c7 Nf6 c8Q Nfd7 Qc5 Qb4 Qb3 Nb6 Nf3 Na8 Bb2 Nc6 Be2 f1Q Nc3 Bg7 Re1 a1Q Nd1 Qb1+ Qbc2 Qh3 Rhf1 h1Q Rf2 Kh7 g6+ Kh6 Qb5 Qh4 Qc5 Qf1 Ng5 Qg4 Nh7 Qg3+ Rf3 Bf6 g7 Be5 Re3 Qf7 g8R Bf6 Bg4 Qb5+ Kd2 d3 Rf8 d4 Rf3 Bg7 Re5 Bf6 Rc8 Bg7 Rf2 Bf6 Bc3 Q1b4 Qa2 Bg7 Kc1 d2+ Kc2 Na5 Bb2 Bg2 Qcd5 Bf6 Rc3 Nc6 Qc5 Bg7 Ne3 d1B+ Kd2 Bdf3 Nd1 d3 Ke3 Bd5+ Bf3 Bc4 Ke4 Bf6 Kf5 d2 Ke4 Bd3+ Kd5 Bg6 Kd6 Bc2 Kd7 Bg7 Bg4 Bf6 Ree3 Bd4 Re1 h4 Ree2 Rg8 Re5 Rg6 Kc8 Rf6 Rfe2 Rf1 Rf2 Rh1 Rcf3 Rh3 Rc3 Rh2
1Qnk3n/1b1nb2p/3PQp1p/6Rq/1PNr4/B5P1/B3Bn2/nKN3Rn w - - 0 1 legal: proof: c4 d5 f4 dxc4 a3 e5 Ra2 b5 Ra1 b4 axb4 exf4 h4 a5 b3 a4 h5 a3 h6 Ra4 bxa4 gxh6 e4 c5 d4 c3 e5 a2 a5 f3 d5 f6 e6 c2 Kd2 f2 e7 c4 a6 c3+ Kd3 Bb7 a7 Nd7 a8B Qa5 Bb2 c1N+ Kc2 Nd3 Qg4 Nf4 Ne2 Ng6 Nc1 Qb5 Be2 f1N Rh3 Ng3 Ba3 Nh1 g3 Qc5 Nd2 Qb5 Kb3 c2 Kb2 Qc5 Rb1 a1N Rh5 Qb5 Qe6 Qa5 Na2 c1N Rg5 Qb5 Nc4 Nd3+ Kc3 Qa5 Rg1 Ndf2 Kb2 Qc5 Nc1 Qb5 Nb6 Qc5 Kb1 Qb5 Bf1 Qe2 Nc4 Qh5 Be2 Nb8 Qb6 Bc6 Qa6 Kd7 e8Q+ Kc7 Qe3 N8e7 Na5 Nc8 Qe6 Be7 Qb5 Rd8 Bb7 Rd6 Ba8 Nd7 Qb8+ Kd8 Bb7 Ne4 Bba6 Nef2 Bac4 Bb7 Ba2 Nh8 Nc4 Ra6 d6 Ra5 Qf7 Rd5 Qe6 Rd4
1RQQ4/p2rQpr1/1b1r2k1/pr2P2N/q1B1r2n/1n4rR/2PN1P2/6BK w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 e5 b4 g5 b5 b6 a5 bxa5 b6 Ba6 b7 Bd3 Qxd3 e4 Qd1 e3 Bxe3 gxh4 Bg5 Nh6 Bc1 Ng8 g4 d5 e4 h5 e5 h3 g5 h2 g6 d3 g7 d2+ Ke2 h4 Kf3 h3 Ne2 d4 Rg1 h1R Rg5 d3 Rg6 h2 Kg2 Rh7 Rb6 Qh4 Nd4 Na6 Nc6 Rb8 Rb5 Rg1+ Kf3 h1R Rb6 Qa4 Nb4 Ne7 g8Q Nf5 Ra3 Rhg7 Nd5 Rh4 Nf4 Nc5 Nh5 Re4 Qe1 d1R Bf4 d2 Bc4 Ke7 Bh2 Nb3 Qh8 R1g6 Bg1 Kd7 Qe3 Bc5 Qg5 Nh4+ Kg3 Bd4 Kh2 Be3 Qf6 Rg3 Kh1 Bd4 Qf8 Be3 Rb4 Bb6 Q8d6+ Ke8 Qd3 Kf8 Qe7+ Kg8 Qdd8+ Kh7 Rb5 Kg6 Rb4 Rc8 b8Q Rc5 Qbc8 Rd5 Rb5 Rd6 Rb4 Rf1 Rb5 d1R Nd2 Rb1 Rb4 Rfd1 Rb5 Bd4 Rb7 Bb6 Rb8 Rd7 Nf3 R1d6 Nd2 Nc5 Rd3 Rb5 Re3 Nb3 Rc3 Rg5 Rh3 Rg3
2b1K3/Q3rNPQ/2N3pn/rBBbp2p/3P1k2/bn1R2bP/2n5/1R1rR3 w - - 0 1 legal: proof: b4 b5 f4 d5 e4 dxe4 f5 g6 f6 c5 a4 cxb4 axb5 Qd6 Bd3 Qf4 Bf1 Qh6 g4 Qg7 fxg7 f5 Ra4 fxg4 Ra5 Kf7 Ra1 Ke8 Kf2 Kd7 Kg3 Kd6 Kf4 a5 Kg5 Ke5 c4 e3 d4+ Ke4 c5 e5 h3 g3 c6 g2 c7 e2 b6 e1B b7 b3 Qh5 b2 Nf3 a4 Bb5 Ra5 Na3 b1B Nc4 Bg3 Ba3 g1R Bc5 Nh6 Kf6 a3 Ng5+ Kf4 Nf7 Na6 b8Q a2 Qa7 Be4 Rb1 Rd1 Re1 a1N Qh4+ Bg4 c8R Nb3 Rb8 Nb4 Ra8 Bd5 Qh5 Ra2 Na5 Nc2 Nc6 Bc8 Rb8 Ra1 Rb6 Bd6 Ra6 Re8 Ra3 Nc1 Rd3 Nb3 Bb6 Ba3 Bc5 Rd8 Ke7 Rd7+ Ke8 Re7+ Kd8 Bb4 Nb8 Ra5 Nc6 Rb7 Ke8 Ba3 Nb8 Rd7 Nc6 Re7+ Kf8 Ng4 Qh4 Rd7 Ke8 h6 Qe7 h5 Qf8 Rb7 Qg8 Nh6 Qh7 Re7+
k3N3/1nBrQ1p1/r1n1r2P/1Pp5/Pbb4R/3p1N1b/b4R1Q/1n2BKB1 w - - 0 1 legal: proof: d4 e5 c4 exd4 b4 a5 g4 f5 gxf5 axb4 Kd2 b5 Nf3 h5 Ke1 b3 Ng1 b4 Bh3 Qe7 Bg4 hxg4 Na3 Qe5 Nb1 Qb5 cxb5 Rh5 Qd2 Rh4 Qd1 Rh8 e4 Kd8 h4 d5 a4 g3 f4 b2 h5 d3 f6 b3 f5 d2+ Kf1 c6 f7 Kc7 h6 Kb7 e5 d4 e6 d3 f6 Na6 e7 Nc5 e8Q Ra6 Qe7+ Ka8 Qc2 d1B Rh4 Nb7 Na3 b1B Qh2 b2 Nf3 Bb3 Bd2 B1a2 Nc4 b1N Nd6 Bc4 Ne8 B8e6 Be1 g2+ Kg1 Bh3 Kf2 Bab3 Ra2 g1R Re2 Rg2+ Kf1 Ba2 Rf2 Rg6+ Rg2 Bc8 Rf2 Bd7 Qa3 Bd6 f8B Bb4 f7 Re6 Bd6 Ne7 f8B Rg8 Bc7 Rh8 Qc1 c5 Qe3 Nc6 Bfd6 Rf8 Be5 Rf7 Bd4 Rd6 Qe7 Bh3+ Rg2 Re6 Bg1 Bf5 Rf2 Bg4 Qf6 Rd7 Qe7 Bh3+
QNQ5/qnpR1P1n/2R5/qp2B3/n5b1/BPn1p1b1/kNP1Q1K1/1n1q4 w - - 0 1 legal: proof: g4 b5 e4 f5 a4 fxg4 a5 d5 Ra4 dxe4 Ra3 a6 Rc3 Ra7 Ra3 Rb7 Ra2 Rb6 axb6 a5 Ra1 a4 h4 h5 Ra2 g5 Rh3 g3 Ra3 g4 Ra1 a3 Rh1 a2 Na3 Rh7 Nc4 Rg7 Rb1 Rg5 hxg5 a1Q Bd3 Qa2 Ra1 Qb1 Ne5 Qxd3 Nc4 Qd8 Kf1 Kd7 d4 Kc6 f4 e5 b7 e3 g6 e4 d5+ Kc5 g7 Kb4 b3 e2+ Kg2 e1Q f5 e3 f6 h4 f7 Nd7 b8Q Qa2 d6 Nc5 d7 Na4 Nf3 Nf6 g8Q Nh7 Ncd2 Bd6 Rf1 h3+ Kh1 h2 Kg2 h1N Ng1 Nf2 Ne4 Nd3 Qa8 Ndc5 Nf6 Nb7 Qe2 Kc3 Bd2+ Kb2 Rd1 Qa1 Ba5 Ka2 Nf3 Qd4 Qe8 Qa7 Bb4 Bf4 Bd6 Qea5 Nd2 Be5 Nc4 Bf4 Kg1 g2 Nb2 Bg3 Bb4 Bh4 Kh2 g1N Ba3 g3+ Kg2 Nf3 Rd6 Nd2 Rc6 Nb1 Rd1 Qe7 d8B Bg4 Qd7 Qd6 Qdc8 Qdd4 Nd7 Qd3 Kg1 g2 Nb8 Bg3 Bf6 Qdd2 Be5 Qc1 Rf1 Qd1 Re1 Bh4 Kh2 g1N Kg2 Bg3 Rf1 Nf3 Rf2 Nfd2 Rff6 Nbc3 Rfd6 Ndb1 Rd8 Nac5 Rd7 N5a4
3q1bk1/2Rp3b/2bPrbp1/KQ3b1B/5bN1/4PqpN/1Q1P3B/1Rr1Q3 w - - 0 1 legal: proof: e4 f5 g4 h5 b4 hxg4 c3 Nc6 b5 Nd4 cxd4 a6 d5 axb5 Bc4 b4 Bd3 Kf7 Bf1 Ke8 Ke2 fxe4 Qb3 e3 Kd3 e2 Kc2 e1B Bd3 e5 Qa3 e4 Qc3 e3 Qb2 Nh6 Bf1 e2 Qa3 Nf5 Qb3 Ne3+ fxe3 Qh4 Qa3 Qg5 Qb3 Qd8 h4 Kf7 a4 c5 d6+ c4 h5 b5 a5 Rh6 a6 Bb7 a7 Bh4 Ba3 e1B Bb2 Kg8 Na3 Bf6 Be5 Rc8 a8Q Bg3 Rc1 Bc6 Nh3 Bf4 Be2 Rc7 Qba4 b3+ Kc3 b2 Kb4 b1B Ka5 c3 Nc4 b4 Qb5 c2 Rhe1 Rg6 h6 b3 Qab8 b2 h7+ Kf7 h8Q Rh6 Rcd1 c1Q Q8b7 Qc2 Rc1 Qd1 Q7b6 Rg6 Qh4 Bf5 Rh1 b1B Qe1 Kg8 Rc3 B4g5 Bh2 g3 Bh5 Qf3 Ne5 Bf4 Ng4 Rh6 Qb2 Bh7 Rf1 Bbf5 Rg1 B6e7 Qb8 Re6 Q8b5 g6 Rh1 Bce4 Rc4 Rc8+ Rc7 Bf6 Qee2 Bc6 Rb1 Rb8 Qe1 Rb6 Q5e5 Rb4 Qd5 Rc4 Qdb5 Rc1
2R3B1/q1r1bP2/PNq2q2/bq2QbPk/2pK4/5b1r/p2B1p2/1R2QNR1 w - - 0 1 illegal: No proof kernel
K2NQ2B/2rP1R1P/q3q3/3Qqn2/1nB1r3/nq3Np1/kPQ1p1pR/7n w - - 0 1 legal: proof: c4 b5 g4 h5 d4 hxg4 a4 bxa4 e3 d5 Qe2 dxc4 Qd3 Rh3 Qd1 Rh8 d5 e5 Na3 e4 Nb1 Bc5 f3 Bd4 exd4 e3 Bd3 Bf5 Bf1 Be4 fxe4 Qd6 Qb3 Qe7 Qd1 Qd8 Ke2 Kd7 h4 Kd6 h5 a5 h6 c5 h7 g5 Nc3 f5 Bd2 f4 Bh3 f3+ Kf1 g3 Nce2 a3 Qb3 a4 Qb5 g2+ Ke1 a2 Nc3 a3 Bf5 e2 Kf2 g4 Ke3 f2 Rh3 f1N+ Kf4 Nc6 Qa5 Qc7 Rh1 Rc8 Rc1 a1N Be6 a2 Na4 c3 Rh2 c4 Nf3 c2 Bc3 Nge7 Nc5 Ng3 Rf1 Nh1 Qa4 g3 Bf7 Rhf8 Ne6 Nb4 Nd8 Re8 Qb3 Nf5 e5+ Kd7 Ke4 c1Q e6+ Kd6 e7 Qh6 Bg8 Nac2 Rf2 Na3 Qc2 a1Q Rf1 Kd7 d6 Qc5 d5 Rc7 Bg7 c3 Bh8 Qa2 Bf7 Qb3 Bg8 Qb5 Ke5 Qa6 Rf2 Kc8 d7+ Kb8 d6 Ka7 Bf7 Kb6 Bc4 Ka5 Rf1 Ka4 Rf2 Nc6+ Kd5 Qe6+ Kc5 Qa8 Rf1 Nb4+ Kb6 Qad5 Rf2 Qde5 Rf1 Rg8 e8Q Rg4 Rf2 Re4 Rf1 Rc8 Kb7 Rc5 Qd2 c2 Ka8 c1Q Qc2 Rc6 Nb7 Qe3 d8Q Qd3 d7 Rc5 Qg5 Rc7 Nd8 Qdd6 Qgd2 Qa6+ Kb8 Ne7 Ng1 Qg8 Rf2 Qge6 Rf7 Nf5 Qcc1 Qbc3 Qd5 Qd3 Nf3 Qc2 Bd3 Qcc4 Qb1 Kb3 Qd1+ Ka2 Qc2 Qab6+ Ka8 Qb3 Bc4 Qa6+
2N3R1/1kP2rB1/p2QKb2/1b1p1p1b/3BP1Q1/2P1N1pn/2Bnq2r/R4r2 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 f4 exf4 g3 fxg3 dxc5 gxh2 Kd2 h5 Ke3 d5 Kf4 Kd7 Kf5 g5 b4 h4 b6 a6 c3 h3 b7 g4 b5 g3 b6 Nc6 b8Q Na5 b7 Nf6 Na3 Nb3 Nc4 Nd2 Nf3 Nfe4 Ne1 Be7 Nd6 Ra7 Nc2 Nf2 Ne3 Qe8 c6+ Kd8+ Ke5 f5 Qa4 Qh5 Qg4 Bh4 Ba3 Bg5 Bc5 Bf6+ Kf4 Qe8 Bd4 Qe7 Bg2 Qe6 Rhe1 h1R Be4 h2 Bc2 Rf1 Reb1 h1B Rb4 Ke7 Rc4 Bd7 Nc8+ Kd8 Qd6 Rh2 b8B Rc7 Bba7 Qe7 Be5 Rb7 Bad4 Bf3 Rb4 Ra7 Rb8 Qe6 Qg7 Bh5 Qg4 Bh4 Bg7 Bf6 Qa3 Bde8 Ra8 Rf7 c7+ Kd7 Qf8 Kc6 Qd6+ Kb7 Nd1 Bd7 e4 Bb5 Ne3 Qe8 Qh3 Qd7 Qg4 Bd3 Na7 Qc6 Rg8 Bb5 Nc8 Qc4 Qd8 Be7 Ke5 Bf6+ Ke6 Nh3 Qd6 Qe2
K1N1b3/2n3b1/pb2qp1B/RQPkp3/1q1np1P1/R4Q2/1P3B1Q/3r1nN1 w - - 0 1 illegal: No possible last move
6r1/pnp2Q1b/3PRRPq/2n2BBp/QN6/5knb/N1pQ1P1n/3K2n1 w - - 0 1 illegal: No possible last move, all moves rejected
QR1Qr3/1np1Pn1B/KR2p1r1/1R4b1/2nrPpr1/3p2kB/2NP4/Nq6 w - - 0 1 legal: proof: g4 a5 b4 axb4 f4 e6 c3 bxc3 f5 Qe7 f6 Qa3 Bh3 Qe7 fxe7 f5 Bf1 Kf7 Nh3 h6 Ba3 b6 Bd6 Bb7 Bf4 Be4 Bg5 f4 Ng1 Bf5 gxf5 hxg5 h4 Kf6 e4 d5 Ke2 g4 Kd3 g5 a4 b5 a5 b4 a6 b3 h5 d4 Kc4 b2 Kb5 c2 h6 c1Q h7 g3 a7 g4 Rh5 g2 Nf3 g1R Ne1 d3 Nc2 g3 Bh3 g2 Nba3 Nd7 Ka6 Rd8 a8B b1N Bc6 Nh6 Qf1 Rg8 h8R Nf7 Ra2 Re8 Na1 Bh6 N3c2 Na3 Rb2 Qb1 Rb6 Nc4 Qc1 Rg4 Qa3 Rc1 Rg8 g1R Ba4 Ke5 f6+ Bg5 Bc6 Nh6 f7 Kf6 f8Q+ Nf7 Qa5 R1g3 Qd5 Rg2 Bb5 R2g3 Qa8 Nc5+ Ka7 Nb7 Ka6 Bh6 Rd5 Bg5 Bd7 Rgg1 Rdb5 R1g2 Rh8 Kg6 Rg8+ Kh5 Bc6 Kh4 Bd7 Rb8 Qd8 Kg3 Be8 Rgg1 Nd4 Rc3 Ndc2 Rb3 Rf8 Rb4 Rg8 Nh8 Bg6 Nf7 Qd6 Re8 Qdd8 Nb2 Bh7 Rd4 Rf8 Nc4 Rh8 Rg8 Qd5 Rg6 Rb8 Rg8 Qd8 Re8 Bg2 Rh1 Bf1 Rh6 Bh3 Rg6
4k2K/1P1R2rR/2Q3pn/1b1nP2r/2Qn3p/2pBqN2/B2P1p2/1Nn2B1r w - - 0 1 illegal: No proof kernel
1r1BqbBn/2RB2N1/1P1q2k1/4pp2/N5K1/nq3P1p/p1Q1RqP1/1r1Q4 w - - 0 1 legal: proof: b4 c5 a4 d5 e4 b5 axb5 cxb4 Qf3 dxe4 Qg4 Bd7 Qd1 Bc8 c4 g5 h4 gxh4 d3 Be6 c5 Bc4 dxc4 Qd6 Qd3 Qd7 Qd1 Qd8 Ke2 a5 f3 h5 b6 e5 c6 e3 c7 f6 c8Q Kf7 c5 b3 c6 a4 c7 b2 Ra3 h3 Qc2 h2 Q2f5 h4 Rd3 h3 Nc3 b1Q Ba3 Nc6 Rd2 Nb4 Qc2 Qe8 Qd8 Ne7 c8B Qb3 Bd7 Ng6 Ke1 e2 Kf2 Rc8 Kg3 e1Q+ Kg4 Qf2 Nge2 Rc5 Rg1 h1Q Nd4 Rb5 Nf5 Rg8 Ng7 Nh8 Ne4 Kg6 Bc4 Kh6 Rb1 Qd1 Re2 Kg6 Rc1 Qd6 Nc5+ Nd3 Bb4 a3 Na4 a2 Qc3 Nb2 Qc2+ Qdd3 Bce6 Nc4 Be7 Rb4 Qc7 Rb5 Qd1 Qd6 Bd8 Na3 Qc5 Qbe3 Qc4 Rb1 Qcb3 Qed3 Rc7 Qc3 Qb2 Qb3 Qbc2+ Kh6 Bc6 Qf7 Rc8 Be7 Bcd7 Re8 Rc4 Bf8 Bc7 Rb8 Bd8 Qfe7 Rc7 Qe8 Qcd2+ Kh7 Bg8+ Kg6 Q2c2+ f5+
1n6/2NK4/pr5r/1R4rk/PNRbq2B/Qp1p1r2/1PPB1pQ1/4n1qQ w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 e5 d4 exf4 Bd2 Be6 Ke2 cxd4 Bc1 d3+ Kd2 d4 Be2 Bd5 exd5 dxe2 Kd3 e1R Kc4 b5+ Kd3 g5 h4 f5 a4 Kf7 h6 Kg6 d6 a6 h7 f3 d7 f4 Qd2 g4 Ra3 g3 Rb3 f2 Nh3 f1R Na3 f3 Nf2 b4 Kc4 g2 Kd5 g1Q Nb5 Nh6 Nc7 Bc5 Nd3 Nc6 Qg2+ Ng4 Bd2 Qe8 d8B Rb8 B8g5 Rg8 h8Q Rb6 Rh2 Rg7 Qf8 Nge5 Rh3 Qa8 Ke6 Kh5 Rc3 f2 Rc4 b3 Nb4 d3 Be7 Nf3+ Kd7 Be3 Rg3 Bd4 Rg5+ Kh6 h5 Re3 Rgc5 Ne1 Rg5 Rf3 Rb5+ Kh7 h6 Rg5 Bd8 Kg6 h7 Kh5 Qc5 Re5 Bh4 Rg5 Qf8 Qe8+ Kd6 Qe4 Kd7 Qh2 Qe7 Rh1 Qc5 Qg1 Qe7 Rf6 h8Q+ Rh6 Qa8 Rh3 Qh1 Rf3 Qg8 Re5 Qgg2 Ref5 Nbd5 Re5 Qa3 Rg5 Nb4 Nb8+
3N1b2/R2p2np/4B1q1/Rqk1p1Kb/1qp2PP1/2P5/1qBQr2N/2N2Q1r w - - 0 1 legal: proof: d4 b5 e4 g5 a4 e5 axb5 exd4 e5 f6 Nh3 fxe5 Ng1 g4 Bh6 g3 Be3 Bb7 Bc1 Bc8 h4 Ke7 f3 Ke8 Be3 Na6 Kd2 Nc5 Bf2 gxf2 g3 Ne6 g4 Ng5 hxg5 Bg7 Qc1 Bh6 Qd1 Bf8 b4 Ke7 c3 Kd6 g6 a5 g7 c5 b6 c4 f4 d3 Ke3 a4 b7 d2 b8N a3 b5 a2 b6 Kc5 b7 Qe7 Bd3 f1Q Ne2 Nf6 g8B Nh5 Be6 Ng7 Bc2 Ra5 Qe1 d1Q Ke4 Qdd6 Nd2 Qf6 Nc6 Qg6+ Ke3 Ra7 b8Q Bb7 Nd8 Bd5 Nf3 Ra8 Qd2 Qb1 Nh2 Qb5 Nc1 Qdb6 Bef5 Bf7 Be6 Qb4 Qb7 Q6b5 Qf3 Rg8 Qf1 Ra5 Rb1 a1Q Rb2 Ra8 Ra2 Qab2 Ra7 Rb8 Kf3 Rb6 Kg3 Rd6 Qdd1 Rd2 Kh4 Re2 Qd3 Qe4 Qd2 Bh5 Rg1 Rh8 Rg3 Qg6 Rd3 Bd6 Rd4 Rf8 Rd3 Rf6 Rd4 Bf8 Rd3 Qf7 Kg5 Rh6 Rd6 Qe8 Rda6 Qg6+ Kh4 Qf7 Ra5 Bg6+ Kg5 Qe8 Nf3 Rh1 Nh2 Bh5 Qd3 Qf7 Qd2 Qg6+
2B3r1/R1n2K1P/1N1nn1p1/3pk1bP/qq1RPp2/q3BQN1/2p3Rq/4Q3 w - - 0 1 illegal: No proof kernel
B1nQ1r2/1RR1N1N1/2p1p2k/Q1pr1qr1/3P1nqn/2K2n2/P1PBQ1p1/8 w - - 0 1 legal: proof: f4 a5 b4 axb4 e4 f5 g3 fxe4 f5 d6 Qf3 Kf7 Qe3 Ke8 Qc5 dxc5 Kf2 g5 Ke2 g4 Ke1 Bd7 Ba6 Bh6 Bf1 Bf4 gxf4 g3 h3 Bb5 Nf3 Be2 Ng1 Bg4 hxg4 Ra4 Rh3 Ra5 Rh1 Ra8 d4 Kf8 Kd2 Kg7 g5 h5 g6 b5 f6+ Kh6 g7 h4 f5 e3+ Kd3 c6 f7 h3 f8Q h2 f6 b3 f7 b4 Nf3 e6 Qe7 b2 f8Q g2 Qc7 b3 Qa7 Qd5 Ne1 Nf6 Nd2 b1Q Qa5 b2 Kc3 e2 Nd3 e1N Ne5 Rg8 Qfd8 Nf3 Ng6 Nh4 Ne7 Nh5 Ba6 Nd7 Nc4+ Nf4 Ne3 Qf5 Bd2 Qd1 Rb1 Qdg4 Bb7 Nb6 Rhf1 Rc8 Ba8 h1R Rf2 Rf8 g8Q Rc7 Rf3 Rd7 Qf7 Rd5 Qh5+ Kg7 Rf2 Nc8 Rff1 Rh3 Rh1 Rg3 Rh3 Qgg6 Qe2 Rg5 Rhh1 Qg4 N3f5+ Kh7 Ng7 Q6f5 Rh3 Kh6 Kc4 Ng6 Rb3 Nf4 Kc3 Nd3 Rb7 Nf4 Rf1 b1N+ Kb3 Na3 Kc3 Nc4 Rc7 Ne5 Rb1 Nef3 Rb4 Ne1 Rbb7 Nef3
2r2b2/2pK4/P1p4k/1rR1pR2/p2b1b2/7P/r1BqP1pB/1NNQRQ1b w - - 0 1 legal: proof: c4 h5 g4 hxg4 a4 f5 c5 f4 c6 dxc6 Qb3 Na6 Qe3 Nb8 Qg3 fxg3 b4 b5 a5 Nd7 Bb2 a6 Bc1 Nb6 axb6 a5 Nf3 a4 Kd1 Nh6 Ke1 Nf5 Ng1 Ne3 Bh3 Nc4 Bf1 Na5 bxa5 Rh4 Nh3 Rh6 Ng1 Rh8 d4 Kf7 Kd2 Kg6 Kd3 e5 Ke4 g2 f4 b4 d5 b3 d6 g3 b7 b2 b8R Kh7 h3 g5 f5 g4 d7 Be7 a6 Qf8 d8Q Qg7 f6 Qh6 f7 Ra7 f8Q Rb7 Bf4 Rb5 Nf3 g1B Qd1 g2 Nfd2 g3 Nb3 Bd4 Nc1 g1B Bg2 Bge3 Re1 Bg4 Ra3 Bb4 Rc3 Bf3+ Kf5 Bd6 Qf6 Rc8 Ke6 Bf8 Kd7 Qg5 Qf7+ Kh6 Rc5 Bd5 Be4 Bd2 Bf5 Bh1 Bg6 g2 Bc2 B2e3 Bh2 Bf4 Na3 b1R Qf5 Bfe3 Qf1 Ra1 Nb1 Bf4 Ra8 Ra2 Rb8 Ra5 Rb3 Rb5 Rf3 Bg3 Rf7 Qd2 Rf5 Bf4
nbq2B1q/6bQ/rN2R1n1/1P1n1kqN/Q2K4/1r1P2rR/nn1P2b1/4B2B w - - 0 1 legal: proof: f4 b5 g4 e5 a4 bxa4 g5 exf4 g6 d5 Nf3 d4 Ng1 d3 cxd3 hxg6 Ra2 g5 Ra1 g4 Kf2 Ke7 b4 Ke6 e4 g5 h4 a5 e5 f5 h5 c5 h6 g3+ Ke2 g4 h7 c4 Bg2 f3+ Ke3 a3 Ne2 c3 Ra2 f4+ Ke4 c2 Rh2 a4 Ra1 f2 Bf3 f1N Rh1 a2 Ng1 g2 Ne2 g1Q Bg2 f3 Nec3 g3 Bb2 c1N Rh2 f2 Nb5 a3 Qe2 Ra6 Qh5 Nd7 N5c3 Bb7+ Nd5 Nb6 Nc3 Na8 Bf3 g2 Rb1 a1Q Qh4 a2 Ne2 Bd6 Rh1 Ne7 Bd4 Ng6 Ng3 Qc8 Nh5 Ne3 Rh3 f1N b5 Rg8 h8B Nd1 Bg7 Bb8 Bf2 Nfe3 Be1 Nb2 Kd4 Kf5 e6 Bc6 Nb6 Nd5+ Qf2 Bb7 Bf8 Rg7 Qe3 Rc7 e7 Rc3 e8Q Rb3 Qd8 Bc6 Qc7 Bb7 Kc5 Bc6 Qd4 Qe3 Bh6 g1R Bf8 Rg3 Bh1 Qg5 Qb7 Nc4 Qh4 Qh8 Qh7 a1B Qd4 Nb2 Qa4 Na2 Rc1 Nf6 Kd4 Bg2 Rc6 Nd5+ Kc5 Nd1 Kc4 Bg7 Kc5 Nf6 Kd4 Nb2 Re6 Nd5+
1q2rb1N/K6k/1PB1rr2/Q1Nbbn1P/2q3nB/5rNP/1QrR2q1/3n3R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 exf4 a4 bxa4 Nc3 c5 Nb1 cxd4 Kd2 g5 Kd3 Rh6 Kc4 d5+ Kb5 f5 b4 Kf7 c4 Kg7 e4 a5 h3 d3 c5 g4 e5 a3 c6 a2 c7 f3 e6 d2 Kb6 d4 b5 a4 Qc2 d1R Qc6 f2 e7 d3 e8Q a3 Nc3 d2 Qd7+ Ne7 Rh2 g3 Bc4 f1Q Nge2 f4 Qd4+ Kh7 Rg2 f3 Be6 f2 Rb1 a1R Rb3 a2 Qf3 Re1 Qfg4 Nf5 Na4 Nc6 Re3 d1N Qb2 Ne5 Nc5 Bb7 Qa4 Rf6 Qa5 Bd5 Rh2 g2 Rd3 g1R Rh1 Qg2 Ng3 f1Q Bg5 Rc1 Bh4 Rc2 Rd2 Qe8 c8N Ng4 Ne7 Qc4 Ng6 Rgf1 Nh8 Rf3 Rh2 Rc8 Ka7 Ree3 Bf7 Ree6 b6 Qd8 Rh1 a1B Qbc3 Bb2 Be8 Rb8 Qb3 Be5 Qb2 Qd6 Bd7 Rbe8 Bc6 Qb8#
K2n1nqb/nPR2BB1/3k2n1/3br3/2Pr1bQP/RNq2n2/4B3/N1Q1qr2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 d5 h4 g5 c4 a5 e4 f5 b4 f3 b6 f2 e5 f4 b5 g3 e6 g4 b7 g2 b6 g3 Qe2 a4 Qh5 a3 Nc3 f3 Na2 Nc6 b8Q Bh6 b7 Ra5 Qhe5 Nf6 Ne2 g1N Be3 g2 Nf4 Qg8 Rc1 Nd7 Qa8 Nd8 Nh5 Ne2 Qf4 g1N Nf6 Nf8 Bg2 f1R Qh2 f2 Nb4 a2 Bf3 a1B Ne4 Bf4 Nc5 Kd6 e7 Be6 e8B Bb2 Bg4 Nf3 Nc2 Rh5 Qg2 Re5 Qg3 Ra1 Re1 Rd1+ Bd2 Bc3 Na1 Bf7 Kc2 d3+ Kb3 d4 Ka4 Bd5 Kb5 Bb2 Ba5 d2 Kb6 d3 Ka7 Re3 Rh2 Rh1 Bh3 f1Q Rf2 Bfe5 Rh2 Nf4 Bb6 N4g6 Qg4 Bf4 Bf7 Bh8 Ncb3 Qg1 Ree2 Re4 Bd4 Qe3 Bf1 Re1 Qf5 d1N Qg4 d2 Kb8 Qd3 Bg7 Rd4 Re7 Re5 Rc7 Nc3 Qa5 d1Q Ra2 Nb5 Qd2 Q1b1 Ka8 Na7 Be2 Rf1 Ra3 Qe1 Qc1 Qdc3
nN4r1/1n2rB1b/1BP2b1K/B2PQqPR/5n2/3b1n2/2Q1Rr1n/1n3knN w - - 0 1 illegal: No proof kernel
kn2b3/P1K2QNr/1rP3B1/3r1rb1/1N1r3r/1Rr2Rb1/4nP1B/1Qn1Nq2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 e5 Kd3 b5 Ke4 h5 Kd5 b3 a4 h3 g4 h4 c4 b2 f6 d3 g5 h2 g6 b4 g7 b3 c5 h3 a5 d2 a6 e4 Nc3 b1N Bb2 e3 Ra5 e2 Nb5 e1B Qg4 d1R+ Qd4 Rh5+ Kc4 Bd2 Qg4 d5+ Kd4 Bd7 Na3 Nh6 g8Q Nc3 Bb5 Nf5+ Ke5 d4 Q4g5 d3 Ba1 b2 Qh7 b1R Qh4 Ng3+ Qg5 Bd6+ Kd4 Na2 Kd5 Ne2 Qgf5 Nac1 f7+ Ke7 Ba4 Be8 Nf3 Rb6 Rb5 Ra7 Rg1 h1R Rg3 h2 Bc2 Rc7 a7 Qc8 f8N+ Kd8 Rh3 Be3 Rb1 d2 Be5 Qd7 Bg3 Kc8 Ne6 Kb7 Qf7 Ka8 Ng7 Rh7 Qe4 Rhg1 Be5 h1R Rb3 Rg5 Bb1 Qc8 Ne1 Rgh5 Rf3 Qh3 Qd3 Qf1 Nac2 R1h4 Nb4 Rg5 Ke6 Rcc6 Bh2 Bg3+ Ke7 Re5+ Kd8 Bg5+ Qf6 Rc7 Qg6 Rcc6 Qf7 Rc7 Bg6 Rf5 Q6e7 Rd7+ Kc8 Rdd5 c6 Rd3 Qe4 Rc3 Nec2 Re1 Qd3 d1R Qe4 Rd6 Kc7 Red1 Ne1 R1d4 Qb1 R6d5+
Qrbrrb1R/3q1B2/2N3rr/P1N1q1n1/5P2/R1P3k1/K2BQb1N/1rn3r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 f4 Kf6 g4 d5 a4 e5 c3 h5 Kc2 b5 Kb3 e4 a5 e3 Kb2 d3 Na3 d2 Qa4 d1R Rh3 e2 Rd3 e1B Ne2 d4 Ng1 b3 Rb1 h3 Qb4 h2 Bg2 h1R Bd5 h4 Qc5 b4 Qb6+ Nc6 Re3 d3 Nb5 d2 Nf3 h3 Nc7 h2 Re5 Qd6 Qa7 Rg1 Ne6 h1R Qc7 R8h6 Ka1 b2+ Ka2 Rg6 Re4 Ne5 Nc5 Bf2 Nh2 Nh6 Bf7 Nd3 Re8 Qe5 Ra1 b1R Qb8 Rde1 Qb5 d1Q Bd2 Re4 Qc4 Re2 Qe4 Ree1 Qe2 b3+ Ka3 b2 Ka2 Rb8 Rd8 Rc1 Re8 b1R g5+ Kg7 f6+ Kh7 Qe3 Qg4 Rd8 Qd7 Qe2 Rcd1 Re8 Nf5 Rd8 Ng7 Re8 Ne6 Rd8 Rg8 g6+ Kh6 g7 Rg6 Re8 Ng5 Rd8 Rhg1 Re8 Rh8 g8N+ Kh7 Ne7 Kh6 Nc6 Rh7 Qe4 Kh5 Qe2+ Kh4 Rd8 Kg3 Re8 Bd6 Rh8 Be7 Bg8 Rh4 f7 Rhh6 f8Q Bd6 Qd8 Bf8 Bf7 Qed4 Qf1 Re8 Qe2 Qe5 Qb6 Rd8 Qa6 Rde1 Qa8 Qed6 Qd1 Ree8 Qh5 Qe5 Qe2 Rbf1 Rb1 Re1 Rb3 Rb1 Ra3 Nc1+
4nrqQ/B4Rb1/6nP/3N1Pkn/2BPQ1bN/1K4qn/nQrR4/3n1q1n w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 f4 Kf7 h4 Kf6 d4 e5 Kd2 a5 Kc3 c5 b4 g5 h5 e3 b6 e4 b7 e2 b5 e1N b6 e3 h6 a4 Qe2 a3 Qb2 g3 Qc2 g2 Bb2 a2 Qc1 g4 Be2 g3 Bg4 e2 Nd2 Ne7 Rh2 Bg7 Nf1 Qg8 Qb1 Na6 b8Q Nc2 b7 e1Q+ Nd2 Ng6 Nh3 g1N Rh1 g2 Bh5 Qg3+ Nf3 Ne3 Qc7 Bg4 b8Q Nd1+ Kc2 c3 f5 c4 Qca7 Nc7 Ne1 Ne2 Qa4 g1N Qa5 Ne8 Ba3 Nef4 Q8b2 Rc8 Ng2 Rc5 Nh4 Rc6 Nf2 Kg5 Rh2 Ngh3 Nd3 Rc7 Rd2 Rc8 Kc1 c2 Qa8 Rc6 Bc5 Rc7 Re2 Rc8 Kd2 c1N Kc2 c3 Rd2 Nce2 Ba7 Rc4 Kb3 c2 Qe4 c1N+ Ka3 Qf2 Nb4 Ng3 Nd5 Nh1 Qe5 Qh2 Qbe4 Rc2 Rb1 a1Q+ Kb4 Nce2 Kb3 Nec3 Qb8 Na2 Rc1 Ne7 Bf7 Nh5 Be6 Ng6 Qa8 Rc8 Rc7 Qe5 Rf7 Rc2 Nc3 Qg3 Bc4 Qh7 Qc8 Rf8 Qb8 Qg8 Qbe5 Bh8 Qg7 Qc1 Qh7 Bg7 Qh8 Ne3 Nd5 Qf1 Qf3 Nd1 Qd3 Qgf4 Qe4 Qg3+
R2K4/2Bb1r1B/1N1P2R1/2QPQ3/1P1rn1qb/N2bbnB1/bb2q1b1/3n1k2 w - - 0 1 illegal: No proof kernel
2qBB1N1/2PN2nb/5n1P/2r3r1/kb1bqr2/1rQr2r1/2QR1P2/KR1Qr3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 g5 h4 d5 c4 Kd7 Kc2 a5 b4 e5 Kb2 g3 h5 g4 b6 Kc6 b7 a4 c5 a3+ Ka2 d3 h6 Kb5 c6 d4 c7 e3 Qe1 g2 Bd2 g3 Rh5 e2 Rh2 e4 Rh5+ Ka4 b5 e3 b6 Bf5 Rg5 Bb4 Qc1 e1Q Qb2 e2 Nh3 g1R Qc1 g2 Qb2 Nc6 b8Q Bh7 b7 Qc8 Rg7 Nd8 Qc1 Ra5 Rd7 Nf6 Qc3 Rc5 Ng5 Ne6 Ne4 Ng7 Bg5 Rf8 Nbd2 Rf7 Nb3 d2 Rd1 d3 Ka1 a2 Rb1 d1R Rd5 d2 Qa7+ Ra5 Qad4 Rc5 b8Q Rc1 Qc2 d1R Qdc3 Rd3 Qb6 Rcd1 Qd6 Rg3 Bh4 Rdd3 Rd4 Rh1 Bg5 g1R Rd5 Nfh5 Nf6 Rhh3 Ng8 Rf4 Bd8 Nf6 Bg2 Rg5 Be4 R1g3 Bg6 Qh1 Rd4 e1R Be8+ Qc6 Qd7 Rdf3 Rd2 Rd3 Kb2 a1B+ Ka2 Ra5 Qg4 Rab5 Qgd1 Qe4 Nc5+ Ka5 Nd7 Rbc5 Q3b3 Bd4 Qbc3 Kb5 Ka1 Ka5 Q3b2 Rb3 Qbc3 Ka4 Qh5 Rd3 Qhd1 Rhg3
B1R3b1/bn4B1/bQ1P4/2rr3k/1b1b3N/rq1NQ1R1/P3nKnP/2rrR3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 b5 d4 f5 e5 Kf7 d6 Kg6 d7 c5 d5 b3 e6 f3 e7 b2 e8R b4 Re5 g3 Ne2 g2 Re3 g1B Qc2 b3 Ng3 f2+ Ke2 c4 Ne4 c3 Qd2 c2 Rc3 f4 Bh3 f1R Ng5 f3+ Kd3 f2 Ke3 Na6 Bg4 Nh6 Rc7 Rd1 Bf3 f1N+ Ke2 Ng3+ Kd3 Bb4 d6 Nc5+ Kc4 Qg8+ Ne6 Ra3 d8Q Bd4 Qf4 Nb7 Bd5 Kh5 Be4 g5 Bd5 g4 Qdf6 Nhf5 Qe3 Nh4 Qff2 Ng2 Re1 Ne2 Nd2 b1B Kd3 g3 Bb2 c1R+ Rc2 Rh7 Rg1 Rc7 Nc5 Qe6 Bc3 b2 Bc6 Qc4+ Ke4 Qb3 Kf3 Be6 Nd3 Bg8 Be4 Ba7 Bg7 Rc5 Re1 Rd5 Rc8 Rcc5 Qg1 Bc2 Rc1 Bb1 Rc3 Bc2 Qgf2 b1R Qg1 Rbc1 Qgf2 Ngf4 Qg1 g2 Kf2 Bb1 Nf3 Bc2 Nb2 Bd3 Nh4 Ba6 Rd3 Rca5 Qb6 Rab5 Rg3 Rbc5 Nd3 Bc4 Kf3 Ba6 Qd4 g1B Qe3 Rg5 Bc6 Ng2 Bd5 Na5 Ba8 Rgd5 Qe7 Bd4 Qe3 Nb7 Kf2 Bb2 Rf1 Ba1 Re1 Bd4
1b1N2b1/3b1n1P/kr1P1b1N/3nBr1q/qQ1Qb3/5P1R/2n1K3/bq1R2RB w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 a4 Kd7 d4 c5 h4 Kc7 a5 b5 d6+ Kb7 d7 e5 f3 g5 d5 c4 d6 g3 h5 g4 h6 e3 h7 e4 Ra4 e2 Bb2 b3 Bh3 b4 Ba3 g2 Qd3 c3 Qd1 b2 Qc1 g3 Qg5 c2 Rh2 c1B Qg7 b3 Nc3 b1B Bf5 b2 Qg5 Nh6 Qd2 Qe8 d8Q Nc6 Qe7+ Ka6 Nh3 g1B Qdg5 g2 Qd8 Ba7 Na2 Nb4 Be6 Qh5 Qf4 Nf7 Rh1 Be7 Ng5 Bf6 Rg1 Nd5 Bh3 Bd7 Qb8 Rf8 Qb4 Rab8 Qfd2 Rb7 Qdd4 Rb6 Kf2 e1N Ke2 Nc2 Rd1 g1Q Bg2 e3 Bh1 Ne5 Nf7 Bb8 Nh6 Qgg4 Rg1 Nf7 Rd1 Ka7 a6 Bd2 Ra5 Bc3 Rb5 Rg8 Ra5 Rg5 Rc5 Rf5 Ra5 Ka8 a7 Kb7 a8R Qgh4 Rc5 Qf4 Raa5 Qfh4 Rab5 Ka6 Rc8 Qe4 Rg8 Qe8 Rgg1 Qe4 Nc1 Ba2 Nb3 b1B Na5 Ba1 Nc6 Qeh4 Nd8 Q4g4 Kd3 e2 Bb2 e1Q Rc5 Qf1+ Kd2 Qb5 Bc3 Qa4 Ke2 Qgg6 Bb2 Ne1 Rcc1 Be4 Rg3 Nc2 Rh3 Qg3 Rg1 Qf4 Rcd1 Qc1 Qe3 Qb1 Be5 Nc7 Qec3 Bae6 Qbd4 Nd5 Qe1 Nh8 Qec3 Bg8 Qcb4 Nf7
2n4R/1b1k1q2/1n1qNn2/3P1q1q/1B3QP1/1r1nKB2/BnPbN3/R2Q1q1r w - - 0 1 illegal: No proof kernel
N7/5P2/1rBqb2r/qn3Rb1/r4B2/4NQrq/P1r1PKQn/1qk2qRN w - - 0 1 illegal: No proof kernel
4Rrb1/B2K1Pr1/1qNR2nk/P1Q1rR2/r5qP/1B3N1r/2Q2b1b/b1n3b1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 b5 h4 b3 f4 e3 a4 e2 d4 e1B d6 c4 d7 b2 Ke6 b4 d5 b3 d6 g3 Be2 c3 Nd2 b1Q f5+ Kh6 f6 g5 Bh5 b2 Rh2 g2 Rh3 c2 Rf3 g4 Be8 g3 Bg6 Qb6 Rf5 Na6 Rf1 Bg7 Rf3 Bf2 Rfa3 Nb4 Ngf3 g1B Rb3 g2 Be8 Na2 Ra3 Bh2 Ne1 g1B Nef3 Ba6 d8Q Bc4+ Kd7 e5 Qb8 e4 Qa7 e3 Bf7 e2 Ne5 e1R Re3 Ne7 Ndf3 Ng6 Nc6 Rhf8 Re8+ Re3 Bd2 c1R Qc2 Re1 a5 Qd1 Bc3 b1R Bd4 Nc1 Bg8 Ba2 Bb3 Re4 Bc5 Ra4 Bd4 Re5 Qc7 Qb8 Ba7 Qb6 Qc5 Rb2 Qc8 Rbe2 Qc2 R2e3 f7 Bb1 Ra3 Rg8 Ra2 Bh8 Qc5 Rg7 Rc2 Qd4 Rc4 Qd1 Rf4 Qd4 Rf5 Qg4 Qa6 Rc3 Qe2 Be4 Qc2 Bd3 Re6 Rf8 Re8 Be4 Kc8 Rd3 d7 Re3 d8R Rd3 Ne1 Rh3 Rd6 Re7 Ba2 Rgg8 Qd5 Ba1 Nf3 Re5 Bb3 Rg7 Kd7 Bd3 Qdc5 Be4 Be6 Nh8 Rg5 Bh7 Rf5 Bg8 Bb3+ Ng6
q2q4/1qn1nQ1Q/1bQ2R1r/n2qn1r1/1P4P1/3Bn2N/brP5/k1BN1R1K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 e4 Kd6 g4 Kc5 Kg2 Kb4 b3 d5 b6 h5 b7 f5 e5 a5 e6 a4 e7 h3+ Kh2 d3 e8Q a3 Nf3 d2 Qe4+ d4 Qee1 d3 Ng5 h4 Ne6 a2 Bg2 f3 Qee2 f2 Nc7 f1N+ Kg1 f4 Qde1 f3 Nc3 d1Q Ne6 d2 Nb5 h2+ Kf2 h3 Na3 Kc3 b4 Na6 b8Q Bc5+ Nd4 Nc7 Qb6 Ne7 Qe4 Rh6 Qe5 Ra5 Qh5 Ne3 Nf5 Nc4+ Kg3 f2 Qf1 Ne5 Nd6 Be6 Qe1 f1R Rb1 a1N Qf2 Ba2 Qc6 Nb3 Nac4 Bb6 Be4 Rc5 Bh7 Na5 Nf7 Qd5 Rg1 h1Q Ne3 h2 Ng5 Qhe4 Qf8 h1Q Nh3 Qhf3+ Kh2 Qd8 Qd6 Qea8 Qff7 Qfb7 Bd3 Qdf3 Qdd5 d1N Qc6 Qfd5 Qhg6 Rf3 Rf1 Rg3 Qgh7 Rf3 Ng2 Ne3 Kh1 Rg3 Rf6 Rf3 Ra1 Rg3 Bd2+ Kb2 Raf1 Rf3 Bc1+ Ka1 Qhg7 Rf5 Qh8 Rc3 Qhh7 Rb3 Rf3 Nf1 Ne3 Rg5 Nd1 Rb1 Nf2 Ne3 Nd1 Qc4 Rf2 Rb2 Rf1 Qcd5+
n2Q3R/2rqBR2/2k1n1Nr/2Nq1qP1/1bBbbN2/1KbQ4/P4qP1/r4q2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 d5 c4 Kd7 Kc2 b5 f4 e5 f5 h5 f6 e3 f7 e2 c5 e1B Nc3 e4 Nh3 d3+ Kb2 e3 Na4 e2 Qc2 h4 Qc4 d4 Rb1 d2 Qc3 d1Q Ng1 h3 Qb3 h2 Ra1 d3 Qc3 d2 Qd4+ Kc6 Qc3 b3 Nf3 b4 Qd4 Bg7 f8N Rh6 Nc3 Na6 Nh7 Ne7 Qg4 Qd7 Rb1 Nf5 Nf6 Nd4 Ne8 Nc7 Nh4 Bb7 Rg1 h1R Qh3 Ra7 Nd6 Na8 Qf5 Ne6 Ng6 Bd4 Qd3 Qf7 Ra1 Qf4 Ne4 Qf2 Kb1 b2 Nd5 Qb3 Ndf4 Qd5 Kc2 Qd7 Kb3 b1Q+ Bb2 Qc1 Ba3 d1Q+ Qc2 Bd2 Rb1 e1B Bc4 Qd5 Rf1 B2c3 Rb2 Qg4 Qd3 Qgf5 Re2 Qf7 Re3 Qfd7 Rh3 Qd1+ Qc2 Qg4 Qd3 Qgf5 Rh5 Qd2 Rf3 Qf2 Rhh3 Bed2 Rh2 Ra1 Rh1 Kc7 c6 Kb6 c7 Kc6 Nc5 Be1 Na6 Bed2 Ka4 b3 Be7 b2 Kb3 Bb4 Nc5 B2c3 c8Q+ Nac7 Qd8 Na8 Na6 b1Q+ Ka4 Ba5 Nc5 Qbf1 Kb3 Bab4 Rhh3 Bc8 Rh1 Rc7 Rh4 Rh8 Rh7 Bb7 Rf7 Rh2 Rh3 Rh1 Rhh7 Rh6 Rh8 Qde5 Qd1 Kb6 Bb5 Be4 Qd3 Qed5+ Bc4 Kc6
2NrrR2/3r1K1b/5R1B/1rN1P1r1/2P2q1R/1Q2nPk1/Q2bq1B1/1n2bq1q w - - 0 1 illegal: No proof kernel
3B3N/q4b1R/1Pk2r2/2n1bN1n/PPnQqbNK/qb1R3n/B4b2/3rQ3 w - - 0 1 illegal: No proof kernel
3b2Q1/bq1q2nP/r2k1q2/Nq3r2/2bNQn2/2r2qB1/RP1K1P1R/3Bb2N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 c4 e5 h4 Ke7 c5 g5 b6 a5 h5 d5 h6 a4 b7 a3 c6 a2 c7 e3 h7 g3 Rh5 e2 Bh3 g4 Bg5+ Kd6 Bg2 e4 Bh6 d3 Nf3 d4 Qc2 Nd7 b8Q Qf6 Rh3 Ra3 Nh2 Ba6 Bg5 Bc4 Be3 Nc5 Nf1 Nh6 Qb4 Rc3 Nh2 Nf5 Qca4 Ng7 Bf1 g2 Rh5 g1Q Qab5 g3 Bc1 g2 Qb3 Qh1 Q3b4 g1Q Qb8 Qgg5 Q4b7 Nce6 Q8c8 Nf4 Kd2 e1B+ Kd1 e3 Na3 d2 Qe4 Qb5 Nf3 Be7 Be2 Rf8 Rh2 Bd8 Ng1 Qf3 Nc2 Qb7 Qb8 Qh5 Bf3 Qhb5 Ne2 Rf7 Ng3 Rf8 Rb1 a1R Nh1 Ra6 Bh5 Qfe5 Bf3 Rf5 Ra1 Qf6 Ra2 Nd3 Ke2 d1Q+ Kf1 Qd2 Be2 Nf4 c8N+ Kc5 Qa8 d3 Na7 Kd6 Nc6 Bb6 Qc8 Ba7 Na5 Qd1 Qce8 d2 Nd4 Qdb3 Qc8 d1Q Qg8 Q5d7 Bd2 Q3b5 Bc1 Rd3 Bg4 Qf3 Bh5 Bc3 Bd2 Bb4 Ke1 Rc3 Bc1 Bbc5 Bg4 Bcb6 Bd2 Qh3 Bd1 e2 Be3 Qf3 Kd2 Ng6 Bg5 Nf4 Bh4 Bd8 Bg3 e1B+
3Rrr2/B1n2Pq1/b1BN2k1/N1Qq2P1/3rP1B1/7r/1K2Q1bb/rq3nRb w - - 0 1 illegal: No proof kernel
b2q3q/1q1P2b1/KBQ5/NNQ2n2/qrn1R1r1/Pb4PB/1kbQ2n1/5qR1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 b5+ Kb3 Kd4 e5 c5 e6 f5 e7 h5 e8Q c4+ Kb2 c3+ Kb3 f3 d3 c2 a3 h3 g3 h4 d6 f4 d7 f2 Qe6 h2 Qg6 f3 Qh7 h3 Qg6 Nh6 Be2 f1N Qh7 f2 Bf3 Nc6 Bg2 Nf5 Bf4 c1Q Bf3 N1e3 Be2 f1Q Bd6 Ng2 Qg7+ Ne5 Qh6 Qcf4 Qc2 Nc4 Bg4 Rb8 Nc3 Rg8 Re1 Bg7 Bc7 Bb7 Qc6 Ba8 Na4 Qe4 Nc5 Rb6 Nb7 Qef4 Na5 Rb7 Ka2 b3+ Ka1 b2+ Ka2 b1B+ Kb3 b4 Ka4 b3 Ne2+ Ke3 d4 b2 d5 Ba2 d6 b1B Qc1+ Kd3 Bb6 Bb3+ Kb5 B1c2 Rg1 h1Q Ka6 h2 Nd4 Kc3 Re4 Rb8 Qe3+ Kb2 Bh3 Qfh4 Nb5 Qh8 Qec5 Qd1 Rge1 Qf1 Qc8 h1Q Q8c6 Qd2 Ra1 Qb4 Rae1 Qa4 Ra1 Qe8 d8Q Qf8 Qg5 Qd8 d7 Rb7 Qd2 Rb8 Nc7 Rb7 Ba7 Rb4 Nb5 Bf8 Bb6 Rg4 Rd1 Bg7 Ra1 Qf3 Rg1 Qd1 Nc7 Qf1 Nb5 Qa1 Re8 Qf1 Qc7 Ngh4 Re1 Qc6 Re4 Ng2 Qb7 Qcc7 Qbc6 Qb7+
BbN2b2/2P1q3/b1R1NBn1/br2rN1Q/1nq3P1/4R1K1/2qPb3/1k2r1Qq w - - 0 1 illegal: No proof kernel
BrQ5/P1r1RqQ1/4qnb1/q1r1n3/1Pqn1B2/2N3n1/N3n1P1/RRb1K1k1 w - - 0 1 illegal: No proof kernel
4b1b1/1r5K/1k2q3/2rq1nPB/4Qbr1/BP1Pn1qN/1n4R1/nrN1QR1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 a5 Kf5 c5 e4 Kc7+ Ke5 f5 g4 h3 g5 c3 b3 a4 d3 h4 Na3 f3 Ne2 f2 Qd2 c4 Nb1 f4 Ba3 c2 Qd1 c1Q Rg1 h2 Ra2 h1R Qe1 c3 Rg2 h3 Bb2 f3 Ba1 c2 Ng1 a3 Bb2 h2 Rg4 Be6 Ra1 a2 Rg2 Rh7 Be2 f1Q Na3 f2 Bf3 Qe2 Qc3+ Kb6 Rg3 f1N Bg4 Ne7 Kf6 Nf5+ Kg6 Nc6 e5 Rb7 Bf3 Bd6 Rg2 Bf7+ Kh7 Ra4 e6 Rg4 e7 Ne5 e8Q Qce3 Nb1 c1R Qe1 Rc5 Ba3 Nc4 Nc3 Nb2 Nh3 Bf4 Qe4 Qd5 Rc1 a1N Na2 Rg1 Rb1 h1B Nc1 Rh4+ Bh5 Qg3 Rf2 Rg4 Rg2 Kc7 b6+ Kc6 Qc4 Qee6 Qcb4 N1e3 Qe4 Re7 b7 Kb6 b8Q+ Rb7 Qa7+ Kb5 Qd2 Bb8 Na2 Rc8 Qaa5+ Kc6 Qeb4 Qdf3 Re2 Bf4 Qd5+ Kc7 Qbc4+ Kb6 Qcc1 Qfe4 Qe5 Bf3 Rg2 Rc5 Qd4 Q4e5 Qe2 Bd5 Qe4 Bc6 Qf2 Rd1 Qf1 Bb5 Qh1 Q5d5 Qc3 Bbe8 Rc1 Rd2 Rf1 Rd1 Qe1 Rb1 Nc1 Bg8+
q6b/QqKb1k2/5q2/P3Bn2/r1R1rNbB/1bNQ1B2/P2RP1nn/3qr3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 Kf2 d5 h4 b5 c4 f5 h5 g5 h6 b4 c5 d3 h7 d4 c6 g3+ Kf3 g4+ Kg2 d2 c7 d3 Rh5 b3 Qc2 d1B Bb2 d2 Qe4+ Kf7 Rh2 f3+ Kh1 f2 Kg2 f4 Rh1 Ne7 Qe5 Nbc6 Bc3 b2 Nf3 Ng6 Qc5 Nce7 Qa3 Bb3 Rh4 d1Q Qc5 Bd7 c8Q Nf5 Nd4 f3+ Kh1 g2+ Kh2 g1R Qe5 g3+ Kh3 g2 Kg4 Qf6 Qb5 Bg7 Ne6 Nf4 Qc7 Rae8 Be5 Rhg8 Nc3 b1Q Qa7 Bh8+ Ng7 Rh1 Qd3 g1Q+ Bg2 Qb2 Rc1 f1N Rc2 f2 Rd2 Re6 Kf3 Nh2+ Ke4 f1B Bf3 Bh3 Nh5 Ng2 Nf4 Rc8 Rg4 Rc4+ Kd5 Qf2 Rh4 Re1 Rg4 Qd8 Bf6 Ree4 Bh4 Rcd4+ Kc5 Qa8 Kb6 Ra4+ Kc7 Bg7 h8B Qbb1 Rg6 Bg4 Rc6 Bd4 Be5 Qb2 Bd6 Bh8 Rc5 Qd4 Rc4 Qf6 Be5 Qa3 Rc2 Qb4 Rd2 Qbb7+
Rr1qK1bB/1q2b2P/3Q3P/1n1B2nQ/P5bN/rRNR4/4q1n1/2kbrr2 w - - 0 1 illegal: No possible last move, all moves rejected
bR2K3/r1N3bB/1BB1P3/5P2/n1nrP1r1/2q2r2/Q2nn1bR/1rk1rQ1N w - - 0 1 illegal: No proof kernel
5Q2/1QPPB1n1/1r4nN/3n1b1n/2r1b3/PNRB1qb1/KRr1bkb1/3Q1b2 w - - 0 1 illegal: No proof kernel
5rbr/2Nbnrb1/4nP2/N1Kb4/Q1nQr1q1/RP3P2/2B3N1/2k1nbBR w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 f6 h5 b3 a5 c3 e5 g5 d5+ Kb5 a3 g6 d3 g7 a2 c4 a4 c5 d2 c6 d4 c7 d3 Nh3 a3 Bb2 Ne7 g8N Qd4 Be2 Nbc6 Bg4 Bd7 c8Q Bg7 Qc2 d1N Be6 Ne3 Bc3 Nc4 Qc7 Rf8 Be1 Nd8+ Kb4 Rf7 Bg4 Ne6 Nf4 h3 Qb8 h2 Qa7 h4 Qc7 h3 Qc3 d2 Qc5 d1B Nh5 Be2 Qb6 Bf1 Qc1 Kd3 Qc5 e4 Nd2 e3 Bd1 e2 Qb5 Qg4 Qb2 Rf8 Qa4 Rf7 Rg1 h1B Qe5 Bhg2 Rh1 h2 Qd6+ Bd5 Nf4+ Kd4 Ng2 Kd3 Nh6 Rhf8 Nf5 Rh8 Nfe3 Rff8 Rc1 a1R Rb1 a2 Bc2+ Kd4 Rb2 Rd1 Rb1 a1R Rb2 Rf7 Ra2 Rab1 Ra3 Rbc1 Ne4 Rd3 Bd2 e1N Nc5 Rff8 Na6 Ke4 Rg1 h1B Nc7 Kf3 Qf4+ Ke2 Qd4 Rd1 Bc3 Rb1 Bb2 Kd2 Ba1 Kc1 Bc3 Ng5 Kc5 Bg8 Ba5 Rd2 Bb6 Re2 Ba7 Ra1 Bb6 Nd2 Nc4 Re4 Na5 Nc4 Nh4 Bf3 Ng2 Rf7 Rh1 Ne6+ Kb4 Rf4 Ba7 Bd5 f3 Re4 Qc3 Bh7 Bg1 Rhf8 Qd3 Bg8 Qd4 Ra2 Bd1 Rd2 Bc2 Rf2 Nf4 Rh2 Ng2 Nd8 Kc5 Rh3 Qc3 Rh8 Qd4 Ne6+
2qbb2k/1q1nR1qq/2P1PN2/3Q4/rB2BQb1/1K1br1b1/3PbN2/1nRQ4 w - - 0 1 illegal: No proof kernel
q1nB1k2/3qbN1P/2Q2b2/b2Bn1qb/1R3RPN/Q4rPr/b3K3/qb3Q2 w - - 0 1 illegal: No proof kernel
1q1B3r/nQrn4/rNr3RQ/2r5/2R1PPB1/K1N1r1P1/b5nb/2N1rr1k w - - 0 1 illegal: No possible last move
1b2Q3/2q4R/b2n1bq1/rq3BQ1/NP1bKB1n/q1r5/1N2P1PR/2Nr1kr1 w - - 0 1 illegal: No proof kernel forced: bxLB
1bqRb1B1/5K2/qR1P1Nnq/1B1n1n2/r5bQ/1N1Q1Pq1/1Pr5/b3knB1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 g4 e5+ Kh5 c5 g5 a5 d3 h3 g6 e3 g7 e4 b6 h2 b7 c3 Bh3 e2 Bg2 e1N Na3 c4 Bh6 e3 Qf3 a4 Qh3 e2 Bd5 c2 Qf1 c1Q Bg2 c3 Bd5 c2 Nh3 Nd7 b8Q Ng2 Bc4 e1Q Ra2 Ne5 Qb7 Qd6 Qb3 Ne3 Bb5 Ng6 Bd7 Nf6+ Kg5 Nf5+ Nf4 Qa6 g8B Bd6 Qe6 Nd5 Ra1 Bb8 Nc4 a3 Nd2 a2 Bf8 h5 Nb1 h4 Qe7 h3 Bb5 Qee3 Rg1 h1N Nd2 h2 Rg2 Qe5 Nh5 Nhg3 Nf6 h1B Rh2 Be4 f3 Ke3 d4 Qed6 Rf2 Rh2 Nb3 Bd7 Qd8 Be8 Rd2 Ra7 Qh3 Nf1 Qh4 Qg3+ Kh5 Re2 Bc5 Kf2 Qd7 Ke1 Qd6 Nc7 d5 Ra8 Bg1 Ra7 Rb1 a1B Rd4 Bd3 Rc4 Ra8 Rc6 Rf2 Qa3 Bc4 d6 Be6 Rb6 Bc8 Na5 Nd5 Qd3 Qd1 Nb3 c1Q Nh7 Bcd7 Nf6 Qcc8 Rc1 Re2 Rc7 Qc1 Rcb7 Be6 Rd7 Rc2 Rd8 Qab7 Be3 Ra4 Bd4 Qa6 Bg1 Nf5e3 Kh6 Bg4 Kg7 Qd2 Bh7 Nf5+ Kg8 Bd7 Kf7 Qh6 Bg8 Be8+
1k4n1/2rqnbr1/2R1N1rB/5Q1B/3P3b/P1p3Q1/n1QrP1qr/R1q1KN2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 g4 Kd7 d4 c5 g5 Kc7 a3 h5 g6 b5 g7 f5 Qd3 b3 Qe3 b2 Ra2 b4 Qb3 h3 Be3 f3 Kd2 h4 Qd3 f2 Rh2 c4 Bh6 f4 Bg2 f1R Qe4 b3 Qe7+ Qd7 Qe8 f3 Qf7 f2 Bg5 Ra6 Qe8 Rd1+ Ke3 f1R Bh1 Be7 Rf2 h2 Ra1 h3 Bf3 h1Q Ra2 h2 Bh5 Nc6 d6+ Kb8 Ra1 Rd2 Ra2 Rh7 Nf3 Rg1 Qf8 Qg2 Bh6 h1R Ra1 Rh2 Qf5 Bh4 Ng5 Nce7 Ne6 Ra7 Qc2 Rc7 Rf6 Bb7 Rg6 Be4 Rf6 Bg6 Qf5 Bf7 Qc2 Rdd1 Nd2 b1Q Nf1 b2 Rg6 Rd2 Rf6 Qc8 d7 Qc1 d8Q b1N Qe8 Qb2 Qd7 Nc3 Qb5+ Qcb7 Qbf5 Na2 Rg6 c3 Rf6 Qbd5 Rg6 Nf6 g8Q+ Qd8 Qg7 Nfg8 Qge5 Qd7 Qg3 Rg7 Rf6 Rh3 Rg6 Qe4+ Kf2 Rh2+ Ke1 Qg2 Rf6 Qh3 Qgf2 R1g6 Qg3 Qg4 Ng5 Qe4 Rc6 Qg2 Ne6 Qc1+
1q2q3/Nq1n2Qn/Nqr3bR/2N4K/1P3B2/1Q2q2P/1R3pPn/br1Bkr2 w - - 0 1 illegal: No possible last move, all moves rejected
1b2KNk1/b1B2bNr/5qQ1/q6P/3bp1qr/2PB2R1/5bP1/nrQ1RBn1 w - - 0 1 illegal: No proof kernel
3n1N1Q/n3bRB1/BbQ5/NPPR1r2/1kqp1R2/1P1br1K1/1b4b1/1q1rq3 w - - 0 1 illegal: No possible last move
bk2NN1R/3nn3/n2b4/p3qRqQ/3b3N/P2rPqPQ/1b1B3B/r3b1K1 w - - 0 1 legal: proof: d4 h5 f4 g5 c4 gxf4 g3 e5 dxe5 b5 Qd4 bxc4 Qd2 h4 Qd1 h3 Bg2 hxg2 Kf2 d5 h4 Kd7 b4 f5 h5 c5 b5 Kc7 e6 d4 h6 f3 h7 f4 e7 d3 e8Q d2 Qe1 d1Q Nd2 c3 Qe4 c2 Rh6 c4 Rf6 c3 Rb6 Bb7 Qd5 Nf6 Nb1 Qd4+ Be3 c1B Qg5 c2 Nd2 Na6 Nc4 Bb2 Qf1 c1B Qh5 Nd7 Nd6 Qg5 Ne8+ Kb8 Rh6 Qde5 b6 Bd6 Bd2 Bc3 Rf6 B1b2 Rf5 Rf8 h8N Bcb4 Nf6 Rd8 Ng6 Bd5 b7 Ba5 Nf8 Bab4 Nh3 g1B+ Ke1 B4c3 Ne8 Bgd4 Ng1 Be4 Qfh3 f2+ Kf1 Bd5 Be3 Be1 Nf3 Bc6 Kg2 f1N Bd2 Ne3+ Kg1 Be4 Nh4 f3 Rc1 Bc6 Rc3 Nd5+ Re3 Ne7 a3 f2+ Kh2 f1Q Re4 Rc8 Rg4 Qgf6 Rg8 Qf3 Rh8 Bd5 Bf4 Rc1 Bd2 Bdc3 Kg1 Qg5 Rh7 Ra1 Rh8 Nb4 Rh6 a5 Rh8 Ka7 b8B+ Kb7 Qh7 Na6 Ba7 Rd8 Qh5 Bc6 Bf2 Kb8 e3 Bd4 Kf1 Qfg4 Bg1 Ba8 Bh2 Qf3+ Kg1 Rc8 Q5g4 Rc3 Qh5 Rd3
BBr2k2/5bq1/N5P1/1Rp1P1nq/rn3Q2/bN1n2nP/2q4R/QKn3bR w - - 0 1 illegal: No proof kernel
5n1q/qN1q3B/R1PR2r1/3Q3p/1P2Br2/1nb1B2n/Q1P2n1k/b1KbN2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 dxc5 e6 Bh6 exf5 Bc1 f4 Kd2 Ke7 e4 Ke6 b4 Ke5 g4 d5 c6 f5 g5 h5 g6 a5 g7 h3 Ba3 f3 Qe1 Kf4 e5 d4 e6 d3 e7 h2 e8Q f2 Nc3 Kg3 Rc1 f4 Q8e5 Rh6 Qf5 f3 Qe3 Nd7 Qfe4 Rg6 Qa7 Ngf6 g8B Nh7 Nd5 Ng5 Nf4 Nh3 Ne6 Bg7 Qae3 Nf8 Re1 Bc3+ Kd1 d2 Qb6 Qd7 Bc4 f1N Qe2 f2 Bb2 a3 Qb5 a2 Ng7 a1Q+ Bc1 a4 Bh7 a3 Ne6 a2 Qd5 Qa7 Nd8 Bg4 Nb7 Qb2 Bd3 a1B Nf3 Rd8 Qde4 Rd4 Qe6 Rf4 Q2e5 Kg2 Re3 Ng3 Re4 f1N Rd4 Ne4 Qa2 Kg3 Rd6 Nef2+ Ke2 Ne3 Qea5 Nc4 Qd5 Na5 Be4 Nb3 Re1 h1N Rf1 Be6 Ne1 Kh2 Rg1 Qa8 Ke3 d1Q Rf1 Qd4+ Ke2 Qba3 Be3 Q3a7 Rg1 Qe8 Rg5 Qh8 Rg3 Nd3 Kd1 Qd7 Rg5 Nd2 Re5 Ndf2+ Kc1 Bg4 Re8 Bd1 Ra8 Qad4 Ra3 Qa7 Ra6 Nb3+
8/br1n1RBQ/qP4BN/1P5N/2rRn1rQ/3r3p/q2P3r/B1nk1bKb w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kf7 Kf2 Kf6 g4 c5 b4 h5 g5+ Kf5 g6 a5 g7 e5 Bg2 a4 Nc3 a3 Nd5 h3 Nc7 e3+ Kf1 c3 Ra2 c2 Bf3 h2 Bg4+ Ke4 f5 Kd3 f6 c4 f7 h4 Nf3 e2+ Kg2 e1R Na6 c3 Rb2 e4 Nc7 e3 Rg1 h1B+ Kh2 a2 Na6 a1Q Ng5 e2 Be6 Qda5 Ba2 Nf6 g8Q Bh3 Rf1 Ra7 Bb1 Q5a2 Qh7+ Ne4 Kg1 Rb7 Nc7 Nd7 Nce6 Rg8 Ng7 Bc5+ Kh2 Bb6 f8B Ba7 Rf7 Bf1 b6 h3 b5 Qa6 Rb3 Q1a2 Nh5 Rg6 Bb2 Rg8 Ne6 Rg4 Qc1 Rd1 Ba1 e1R Bg7 Re3 Rb4 Ke2 Nd8 Rd3 Rd4 Re1 Qb2 c1R Qb4 c2 Qe7 Kd1 Qh4 Ng3 Kg1 Re2 Nc6 Rf2 Ne7 Rh2 Ng8 Ne4+ Ng3 Q2a3 Nh6 Qb2 Ba2 Qb1 Be6 Qba2 Bf5 Rb1 Bg6 c1N Rc4 Rb4 Rd4 Bfg2 Nh5 Rc4 Qf2 Bf1+ Qg3 Bfg2 Qh4 Bf1+
1kr1q1BK/b1Nr4/1P1P1N2/Qn1p1bR1/1q5B/1q2PQR1/2B3rn/2rr3b w - - 0 1 illegal: No proof kernel
1b2r2n/q2k1BQ1/pbN3Bq/5P1R/q1KbQrb1/P3B3/n1RrP3/3b3N w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 g6 hxg6 Qd3 g5 Qf3 g4 Qg3 fxg3 Kd2 d5 Kd3 b5 h4 g5 c4 a6 f4 g2 c6 b4 a3 b3 c7 b2 c5 g3 c6 g4 h5 Bd6 h6 Qg5 h7 Nh6 Rh2 Nf7 Nf3 g1B Ne1 g2 Rh4 g3 Rh2 Rf8 h8Q Bg4 c8B Qh6 c7 Nc6 Be3 Nb4+ Kd2 d3 Kc3 d2 Bf5 d1Q Nd3 d4+ Kc4 Na2 Nf2 d3 Rh5 d2 Bg6 Kd7 Nh1 Rae8 Nc3 b1R Nb5 Rb2 Rc1 Bf2 Nd4 g1B Qe5 g2 Rc2 Nh8 Qe4 Be5 Nc6 Bg3 Rc3 Bd4 Rc2 B1f2 Bf7 g1Q Bg2 Bh2 Qh7 Bb6 Be4 Bhg3 Qg7 Bd4 Rc1 Bh2 Beg6 Qa4+ Kd3 d1B c8Q+ Kd6 Qb8+ Kd7 Qb4 Rd2+ Kc4 Bb6 Bc5 Bd4 Rc2 Rg8 f5 Bb8 Bd6 Re4 Bf4 Rge8 Be3 Qg3 Rh3 Qc7 Rh5 Qa7 Bf4 Qa5 Be3 Rf4 Qe7+ Kc8 Qee5 Kd7 Qe4 Qa4+
3b1bn1/KB1N1q1P/NQ3P2/2Bpn1r1/7k/2n2n1P/R2rbr2/Nn1Q2qR w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Ke2 Kf7 f4 Kf6 c4 d5 a4 e5 h3 b5 h6 g5 a5 b3 h7 g4 c5 g3 f5 d3+ Ke3 Kg5 a6 b2 c6 d2 f6 g2 a7 b4 c7 b3 Ra6 Bg4 c8Q Qe8 Qe6 Kh4 Bb5 Be2 Na3 b1N Bd3 b2 Qf1 d1R Ra4 Nc6 Qd6 Qf7 Ba6 Rd2 Qd1 Nc3 Bb7 b1N Nc2 Rc8 a8N Rb8 Ba6 Rb2 Na1 Rbc2 Ra2 Rb2 Nc7 Rbc2 Kf2 e3+ Ke1 e4 Bb7 Ne5 Ba3 Ba6 Qe6 e2 Kf2 e1N+ Ke3 Be2 Bc5 N1f3 Qb6 Rb2 Na6 Rbc2 Kf4 e3 Kf5 Bd3+ Kf4 e2 Ke3 e1B Qc1 Ng5 Kd4 Rf2 Qd1 Rcd2 Be7 Be2+ Kc5 Nd7+ Kc6 Ne5+ Kc7 Ngf3 Kb8 Nh6 Bd6 Rg8 Ka7 Rg5 Ba3 Ng8 Bc5 Bb5 Ne2 g1Q Nd4 Be2 Nc6 Rfg2 Ncb8 Bg3 Ba3 Rf2 Nd7 Bf4 Bb4 Be3 Ba3 Bec5 Bb4 Bce7 Bc5 Bd8
R4b2/5K1p/B2qN1Q1/1QbP1P2/Nbbn1rB1/1q1NbrRP/4rn2/k2q4 w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f6 f4 f5 b3 fxe4 Bb2 g5 f5 Nc6 Be5 Nb8 Bf4 gxf4 Kf2 Kd7 g4 Kd6 d4 Kd5 b4 a5 h3 e5 g5 c5 b6 a4 b7 c3 b5 e3+ Kf3 e4+ Kg4 c4 Kh5 a3 g6 e2 b6 e1B g7 a2 Qd2 c2 Qd3 c1B Qc2 c3 Bb5 f3 Ba4 Kc4 d5 f2 Rh2 f1R Rg2 e3 Qd1 e2 Qd2 c2 Nc3 Bf2 Qh6 e1B Qf6 Nc6 b8N Qd6 b7 Nh6 g8B Nd4 Nf3 Bce3 Nd7 c1Q b8Q Qca3 Bd1 Ra4 Ng5 Ba6 Nc5 Ng4 Be6 Qb3 Rg3 Ra3 N3a4 Bb4 Qg6 Rg8 Nb2+ Kc3 Nbd3 Bc4 Qb5 Rg7 Bd7 Re7 Nge6 Bg1 Be8 Rf4 Kg5 Nf2 Bg4 Kc2 Kf6 Kc3 Rb1 a1Q Na4+ Kc2 Rf1 Qd1 Bd7 Kb1 Bc8 Ka1 Ba6 Re8 Kf7 Bed2 Nd8 Re2 Ne6 Bc5 Re1 Bdb4 Nc7 Rb2 Re8 Re2 Rc8 Nh1 Re8 Be3 Ra8 Nf2 Ne6 Qbc2 Nb6 Bc1 Ne1 Raf3 Na4 Qb3 Nd3 Be3
1k5b/1qNQqp2/r4qb1/1Q1P3b/nnP1B2r/3N1P1b/RN1K3R/1B1bn3 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 dxe4 Ba3 g5 axb5 gxh4 b6 Qd5 b5 Qd8 Bb4 cxb4 d4 Kd7 g4 a5 c4 h5 b7 Kc7 d5 e5 g5 e3 g6 h3 g7 h2 Qd3 e2 Ra3 h4 Ra4 e4 Nd2 b3 Qc2 h3 Ngf3 b2 Nh4 b1B Ra3 a4 Qb2 Qf6 Qd4 Nd7 b8N Nc5 Rf3 a3 Nf5 a2 Nd7 a1Q Ne5 Qa7 b6+ Kb8 b7 Rh4 Bg2 Na4 Ra3 Ne7 g8B Nc6 Nf1 Bg7 Nd3 Bh8 Ra2 Nb4 Kd2 e1N Nd6 Bg4 Qa1 Bh5 Bh7 Qa6 Nb5 e3+ Kc1 e2 Nc7 Qac6 Kd2 Ra6 Ne3 Bc2 Bge4 Bd1 Qe5 Qd7 Qe7 Qc8 Rf1 h1B Qd7 Bg2 Rh1 h2 Bhg6 Bh3 Bgf5 Bb3 Nd1 Bc2 N1b2 Bd1 Rg1 h1B Rg2 Bg6 Rh2 B1g2 f3 Bg4 Ne5 B2h3 Bb1 B4h5 Ned3 Nec2 Be4 e1Q+ Kc1 Qg1 Kd2 Qc5 Qb5 Qce7 Qd7 Ka7 Qd8 Ne1 Qd7 Kb6 b8Q+ Qb7 Qbe8 Ka7 Qb5 Bb3 Qec6 Bd1 Qd7 Kb8
n1b1BbR1/1n1rPq2/4r1P1/2Bn3b/k3n2Q/1NP1R1pQ/3q4/Kn2rNB1 w - - 0 1 illegal: No proof kernel
n2KnQ2/2P1n2k/1Q1b2rP/1r1qQ2R/3q2b1/n4NP1/N3B1Rp/b1Bq3n w - - 0 1 illegal: No proof kernel
b1q5/1Rp5/q2N1Br1/1PPnRqbb/2n4b/k1B1QBPN/5r1K/3Q1n1b w - - 0 1 illegal: No possible last move, all moves rejected
1N1b4/Qbp4k/3r1R1P/Pn2B1n1/RN1qr2P/KQq2rbq/1r2B1r1/7N w - - 0 1 illegal: No possible last move
KNr3qk/P3qQ1n/3b2nR/4P3/1Br1p3/bq1q3n/3P1N2/qQ1BRQ1b w - - 0 1 illegal: No proof kernel
nb2Qq1r/P2b1P2/nb1n4/2BkbP2/1Qr1N3/1Qr2q1R/1pRN2b1/1K1B4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 c4 e5 Kc2 b5 h4 g5 a4 d5 f4 d3+ Kb2 b3 f6 Ke6 a5 g3 h5 d4 c5 d2 c6 d3 h6 b4 f7 g4 a6 g2 f5+ Kd5 c7 g3 a7 e4 h7 e3 Be2 Bd7 c8Q Ne7 Qe1 d1Q Bh5 e2 Rh2 d2 Bg6 Na6 Ra2 Bg7+ Qc3 Be5 Bh5 Nc8 Bg6 Nd6 Ka1 Qf8 Rb2 Rc8 Qf2 e1B Qe2 Rc4 Qf2 Qf3 Bh5 d1N Bg6 Ne3 Ne2 g1R Nd2 g2 Qf1 B1g3 Rc2 b2+ Kb1 Rh1 Rh5 g1B Qd1 Rh3 Qe1 B3h2 Ng3 Bf2 Nge4 Rg3 Ka2 b1B+ Kb2 b3 Rh3 Ba2 Bh5 Bb1 Ka1 Bfg1 Ba3 Bf2 Rc1 Bd3 Bb4 Bf1 Bc5 b2+ Kb1 Bg2 Qb4 Rc3 Qb3+ Nec4 Rc2 Rg4 Qb4 Bfd4 Qe3 Nb6 Qd3 Na8 Qe3 Rc4 Qeb3 Rg3 Bg4 Qf4 Bd1 Rc3 Qb8 Qf3 Qe8 Rg8 h8Q Bhf4 Qh4 Rh8 Ba3 Bb6 Bc5 Rg8 Qhd8 Rh8 Qb8 Bc7 Q8b4 Bb8 Bf2 Be3 Bg1 Bb6 Bf2 Bf1 Bc5 Bg2
r1q5/qQ2N1br/R4Bb1/N3r2Q/3rq1bP/1PRpK1n1/Pk2BnB1/n7 w - - 0 1 illegal: No possible last move, all moves rejected
4KQ2/r4rnq/1Rrr2B1/qP1RbbQ1/QqP4N/Pn5n/1B2p3/3N1b1k w - - 0 1 illegal: No proof kernel
n6r/r2B1Nq1/brq2n2/Pk5N/3bRP2/2bPp1B1/2r5/QKqQQ1Rn w - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kd7 g4 c5 a4 h5 a5 b5 d3 e5 Kd2 h3 Kc2 h4 g5 h2 g6 b3+ Kb2 e3 g7 c4 d6 Kc6 d7 e4 Nf3 e2 Bd2 e1B Bc3 e3 Be2 b4 Kc1 b2+ Kc2 h3 Qc1 b3+ Kd1 Ba6 Bb4 c3 Ra4 Qg5 d8Q Nd7 Qf6+ Kb5 Bf1 Ra7 Nbd2 b1R Ne4 b2 Kc2 Bc5 Ng3 Bd4 Qd1 Nb6 Ne5 Na8 Rg1 h1Q Nf7 h2 Nh5 Qc6 Bh3 h1N Bd7 Qg6 Qh4 Nf6 g8Q Qg7 Qd8 Bd2 Qhe1 Ra1 Qe7 b1R Qe6 Ra3 Qa2 Rab3 Qb2 Ra1 Be7 Ra2 Kb1 Rb4 Qbb3 Rc2 Qb2 Ne4 Bh4 Nf6 Ka1 Rc1+ Ka2 c2 Qa1 B2c3 Bf2 Rcb1 Bh4 c1Q Bg3 Rc4 Rb4+ Kc5 Ra4 Rb6 Rb4 Bb2 Ra4 Rc2 Rc4+ Kb5 Ra4 Bdc3 Re4 Qd2 Kb1 Bd4 Qa2 Bbc3 Qa1 Qc1+
1r1R1q2/1B2RN1k/1b3nn1/P4b1r/1K3p2/q2QqPP1/1b1nNr1Q/2Bb1R2 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 c3 bxc3 Qd3 gxh4 Qd6 Nc6 Qd1 Nb8 a4 c5 e4 d5 f3 f5 g3 Kf7 e6+ Kg7 e7 b5 e8R h5 a5 c2 Kd2 f4 Kc3 d4+ Kb3 h3 e5 h2 e6 h4 e7 c4+ Kb4 d3 Bg2 c3 Qf1 d2 Bb2 d1B Qe1 c1B Ra3 h3 Qf1 Rh5 Qf2 Nd7 Qf1 Kh7 Ra1 c2 Ne2 Ngf6 Qe1 Ne5 Nd2 Ng6 Kc3 b4+ Kb3 Bf5 Ra2 Rb8 Rf1 h1R Ne4 h2 Bh3 Qc8 Ka4 b3 Qf2 Qc3 Qd4 Qe3 Qd3 Rg1 Bg4 h1Q Rd8 Rg2 e8Q Bc5 Nd6 Rf2 Nf7 Bb6 Kb4 Qh4 Ba3 b2 Qe5 b1N Qb2 Nd2 Ra1 Be4 Bc8 Bf5 Bb7 Qg5 Qa2 Qh6 Rb1 Bb2 Ra1 B2d4 Bc1 Qg7 Rb1 Qg8 Rb3 Bb2 Rc3 Qg7 Rc7 Qf8+ Re7 Be5 Ba3 c1Q Bb2 Qa1 Bc1 Bb2 Qe6 Be4 Qh3 Bf5 Qh2 Qa3+
2QR2b1/1R2KrBQ/Nq1R4/P2P2q1/rb3Pbn/bk3npr/qN3n2/7B w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 b5 Kd4 g5 Ke5 c5 f4 c4 h4 e3 d4 g3 a4 g4 h5 g2 d6 g3 h6 c3 d7 c2 h7 e2 Kf5 e1R Bc4+ Re6 Qf1 b3 Nf3 g1Q Na3 b4 Bb2 c1B Nh2 Nh6+ Kg5 Nf5 Qh3 Na6 Nc2 Nc5 Ba3 b2 Ra2 b1Q Na1 b3 Rf2 b2 Ba2 Ne4+ Kh5 Nh4 Nb3 Rf6 Nf3 e5 Ne1 Bb4 Rd2 Nf2 Kg5 e4 Nd3 e3 Nbc5+ Ke7 Bd5 Kd6 Rh2 e2 Na6 e1N Bh1 Qa2 d5 b1B Rb2 Qe7 d8R+ Bd7 Rb3 Bc2 Bb2 Nef3+ Kh5 Bb1 Bc3 Bca3 Nb2 Bg6+ Kh6 Qe5 Kg7 Bf7 Qf5 Bg8 a5 Rc8 Qg6 Rc4 Qf7 Qg5+ Kf8 Rf5 Bg7 Rf6 Rc3 Rd4 Rc7 Re4 Rb7 Rd4 Nb8 Kc5 Ke7 Bg4 Rh3 Rc4 Na6+ Kd4+ Rd6 Kc3 Qe8 Kb3 Qc8 Nd3 Rh2 Qb6 Re2 Nf2 Rc2 Bd2 Rc1 Ra4 Rcc7 Bdb4 Rd7 Bf7 Rd8 Rf8 h8Q Bg8 Qh6 R8f7+ Ke8 Rc7 Qh7 Rc1 Bg2 Rh1 Ke7 Rh3 Bh1 Rf7+
1n3N1n/n4k2/Nrq1q2p/2rBr1RP/qR1K2P1/b2QP3/Q2b1bn1/B4Q2 w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 f4 gxf4 c4 b6 b5 Ba6 a5 bxa5 b6 Bb5 cxb5 a4 Kf2 f5 g4 c5 h4 a5 h5 d5 b7 h6 b6 a3 Nc3 f3 Ra2 f4 Qb3 c4 Nb1 c3 Qb2 c2 Qc3 d3 Qa1 a4 Qd4 d2 Qe5+ Qe7 Bb2 d1R Rh3 c1B Ba1 d4 Rb2 a2 Nd2 a3 Qb5+ Kf7 Rb3 d3 Qc4+ Qe6 Rh4 Ra5 Bf6 a1B Nh3 a2 Qc3 Re5 Rb2 Ba3 Rb5 Ne7 Bg2 Rc8 Bh8 Rcc5 Ne4 d2 Qd3 Ng6 Bf6 Nh8 Nhg5+ Kf8 Nh7+ Kf7 Rh1 Bd4+ Qe3 a1N Nf8 Nb3 Rb4 Na5 Rf1 Nac6 Bg7 Rc4 Nc5 Na7 Na6 Rcc5 Bf6 Re1 Bg7 d1Q Bf6 Bdb2 Qd3 Qa4 Bg7 Bd2 Bf6 Nbc6 b8Q Rb1 Qa8 Nb8 Qad5 Bbc3 b7 Ba1 Rd1 Qc6 Qa2 Bd4+ Kf1 f2 Bd5 B4e3 Kg2 f1N Kf3 Bf2 e3 Nh2+ Ke2 Nf3 Rc1 Ne1 Rc2 Re4 Ba1 Re5 Rcc4 Ng2 Kf3 Nd7 b8Q Qa4 Qd8 Nb8 Qf1 Qc6 Ke2 f3+ Kd3 Qa4 Rb5 Rb4 Ra5 Rb6 Rb5 Bh4 Ra5 f2 Rb4 Qc6 Kd4 Qa4 Qc1 f1Q Rb5 Qf5 Qf1 Bf2 Ra5 Qfc2 Qd7+ Kg8 Qdb5 Qc1 Qbd3 Kf7 Nd7 Rcb5 Bf3 Rf5 Nf8 Qc6 Be4 Rbc5 Bf3 Rc1 Re5 Rc5 Bd5 Rf3 Rg5 Rf5 Qh1 Re5 Qc1 Qab5 Qcf1 Qa4
2bq1q2/1nn1N1qn/1Kb2RP1/1b1Q4/3p2r1/NrPPrQR1/N1rBB3/k7 w - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 c5 Bc1 cxb4 a3 gxh4 Ra2 b5 Rb2 b3 Ra2 b2 Ra1 b4 Kf2 b3 Ke1 Bb4 axb4 Qb6 Nf3 Qa5 Ng1 Qd8 Kf2 Ke7 g4 Kf6 e4 Ke5 g5 Kd4 e5 h5 g6 a5 e6 f5 e7 d5 e8Q f3 b5 a4 b6 f4 b7 a3 Rh2 a2 Qf7 h3 Qh7 h4 Nc3 b1Q Bb2 Ra3 Qe2 Nf6 Qh6 Na6 b8N Nh7 Qg5 Nc7 Bc1 b2 Rh1 h2 Qe1 h3 Na4 Re3 Qd1 Rhe8 Nd7 R8e4 Ne2+ Kc4 c3 d4 Rg1 h1B Nac5 h2 Nb8 Bg2 Qe1 h1R Ncd7 Kb3 Ne5 Rh2 Nbc6 Ka3 Ne7 Bh1+ Bg2 Kb3 Kf1 f2 Bf3 Rg2 Nc4 Rg4 Ng3 Re2 Qe5 R4e3 Qd5 Qe4 Rb1 a1N Qd1+ Ka2 Na3+ Nb3 Rg2 Qe5 d3 Rc2 Be2 Qg7 Bd2 Ba6 Rg1 Bb5 Rc1 Be4 Rb1 Bf5 Kg2 f1B+ Kf2 Bc8 Rg2 Re5 Kf3 Re4 Rc1 b1R Rf2 Bh3 Qh1 Re5 Rg1 Ka1 Rgg2 Na5 Rg1 Rh5 Ke4 Nb7 Qf3 Bc6 Nf1 Rb6 Rg3 Rb3 Ne3 Rhg5 Nec4 Bb5 Na5 Bg2 Nac6 Rh5 Nb4 Rh1 Nc4 Re1 Na2 Bh1 Rh2 Bg2 Na3 Bh1 Rh5 Bg2 Rf5 Bh1 Qg2 f3+ Rf4 f2 Qf3 Nf6+ Ke5 Nh7+ Rf6 f1Q Qd7 Na5 Kd6 Qf2 Kc5 Nb7+ Kb6 Bg2 Qe3 Bgc6 Qd5 Qf4 Qef3 Qf5 Bd1 Re3 Be2 Qf4 Re6 Qff7 Rf6 Qff8
1rb2q2/1RQrBn1R/3n2P1/Pp1Qq2N/kbqQ4/6Pn/1q2N1B1/2rb2K1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kf2 f5 a4 d5 c4 Kd7 e4 Kc6 e5 h5 g6 d3 c5 h4 g3 d4 e6 h3 e7 b3 e8Q+ Nd7 a5 Kb5 c6 f3 c7 f4 Ra4 h2 Be2 b2 Qe1 Rb8 Bd1 d2 Q1e6 d3 Be2 d1R Nd2 b1Q Qf6 Rh7 Qe3 Qb2 Rd4 Nh6 Nh3 Qe7 Rd5+ Nc5 Rh5 Qee5 Nc4 d2 Qd6 Ka4 Ng1 b5 Bf1 Rd7 Ne2 Nb7 Bg2 Nf7 Qd5 Bb4 Rh7 Nbd6 Qed4 Rg1 Ne3 d1B Nf5 Re1 Rf1 h1N+ Kg1 Nf2 Ng7 Nh3+ Kh1 f2 Nh5 f3 Bg5 Qa1 Kh2 Qb2 Rh1 f1Q Be7 f2 Rg7 Ba6 c8Q Bb7 Qc7 Bc8 Nc1 Qc4 Ne2 f1Q Rh7 Qff4 Rf1 Qh6 Rf6 Nb7 Rb6 Nbd6 Rb7 Rf1 Nef4 Qf8 Ne2 Rf3 Kh1 Rc3 Kh2 Rc1 Kh1 Nf4 Kg1 Nh3+
4Bb1Q/2nr4/2N2P1N/3pK3/1PkqB1b1/3q1R1r/qQ1P1R1N/r1nbn1n1 w - - 0 1 legal: proof: e4 b5 h4 f5 h5 fxe4 b3 b4 h6 gxh6 Qf3 h5 Qd1 h4 Bb2 c5 a3 c4 axb4 c3 b5 cxb2 Ke2 Kf7 Ke3 Ke6 Kd4 h5 f4 a5 g4 e3 c4 a4 g5 a3 b6 e2 g6 e1N c5 h3 g7 h4 b4 h2 c6 h3 c7 a2 b7 Ra7 Ba6 Nf6 g8N Nd3 Bc4+ Nd5 Qa4 Nc1 Ke4 Na6 Bf1 Nc3+ Kd4 N3e2+ Ke4 d6 Na3 b1Q+ Qc2 Rh4 Nf3 Ng1 Ke3 Kd5 b8Q e5 f5 e4 f6 Bg4 Kf4 e3 c8B e2 Nb5 e1N Nbd4 Nc7 Qb2 Qd3 Bf5 Kc4 Be4 d5 Rb1 a1Q Nc6 Qa2 Ke5 Rh7 Qa8 Rd7 Nh6 Qb8 Be2 Qb6 Bd1 Ra3 Ba4 Qbe3 Qa1 Rc3 Rb3 Qa7 Ra3 Rb3 Qe8 Rb1 Qb2 Ra1 Rb3 Qad4+ Kf4 Qc2 Qf7 Nb5 Qh5 Rh7 Nb8 Nc7 Be8 Rd7 Re3 Qcd3 Qh4 Nb3 Nf5 Nc1 Qh8 Nge2+ Kg5 Bc5 Rf1 h1B Nh6 h2 Nc6 Ng1 Kf4 Bf8 Rf2 Bg2 Ng5 h1R Nf3 Rh4 Nh2 Rh3 Rg3 Bf1 Re3 Bfe2 Ref3 Qc5 Ke5 Bd1 Rf4 Qce3 R4f3 Qed4+
R3K2Q/1rB2nN1/2R2p2/P1b5/1B2qr1P/qbQ5/BP3nNb/q3nbkr w - - 0 1 illegal: No proof kernel
1K2rb2/1B1q2bR/1P2N1rN/1Q4q1/b1BQ4/kbn1r1n1/pn2PP2/q1B3R1 w - - 0 1 illegal: No proof kernel
r3n1b1/bB6/KPq2QR1/Pq2R2Q/qBn2rRr/p7/1Pq2b2/N1nk1N2 w - - 0 1 illegal: No proof kernel
b2r3q/q1BN3b/npPr3R/k3PQ2/3r2B1/K3R1nq/1nR3PQ/b3N2b w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 f5 e4 h5 a4 d5 c4 Kd7 Kc2 Kc6 Kb3 Kb6 g6 h4 c5+ Ka5 g7 h3 c6 h2 Nd2 d3 Qe2 b6 Qe1 f3 Bb2 d4 Ne2 f2 Bc3 f4 Qd1 f3 Rc1 Bb7 Nb1 d2 Nf4 d3 Na3 Rh6 Nh5 Ne7 g8R Nf5 Ng3 Na6 Rg6 Bg7 Rc2 Qh8 Re6 Rd8 Be2 f1Q Nh5 f2 Nf6 Ng3 Nd7 Ba8 Qb1 d1R Bg4 d2 Be5 Qd3+ Ka2 f1Q Bc7 Bd4 e5 Qf7 Re1 h1B Re3 Qe7 Rd6 Rh4 Rh6 Qdh7 Kb3 Ba1 Ka2 Rf1 Kb3 Rf6 Qg1 d1N Qh2 Nb2 Ka2 Rd6 Kb3 Nc5+ Ka2 Ka6 a5 Qf5 Rcc3 Qf3 Nc2 b3+ Ka3 Kb5 a6 Ka5 a7 Na6 Ne1 Qeg7 Be6 Rhd4 Rc2 Qh5 Bg4 Qh3 Rh4 Nd1 Rh6 b2 Rd2 b1B Rc2 Bb7 a8Q Nb2 Qc8 Ba8 Nf8 Qe7 Qf5 Qf7 Bb8 Qa7 Bc7 Ba2 Nd7 Bg8 Rc1 Bh7 Rcc3 Qf8 Rc2 Qh8
q2kq1B1/b2N1BP1/Prrn2Rn/q4rp1/nb5Q/1QP1R1B1/5K2/n4bN1 w - - 0 1 illegal: No proof kernel
1Rbq1rQK/k3rBpb/2P1n1Q1/1b4P1/2QPn2r/2B1qn1N/1R6/1qN2b2 w - - 0 1 illegal: No proof kernel
1nb1q3/2B1bPpr/3Q4/Nk2N1PB/1qR2r2/K1P1Qn1R/4r1rb/B5qn w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 g5 h5 Qg4 hxg4 Kd2 a5 h4 e5 b4 d5 f4 Kd7 h5 a4 b6 Kc6 h6 d3 Kc3 d4+ Kb2 a3+ Kb3 e3 b7 e2 h7 e1R c3 a2 f5 d2 f6 d1Q+ Kb2 e4 f7 e3 Ba6 e2 Bd3 g3 Bg6 g2 Na3 d3 Nc4 d2 Nd6 Nf6 Nf3 g1B Nc4 Be7 Na5+ Kb5 Ne5 Ng4 Rh3 Qe8 Bh5 Nf2 Ka3 Nh1 Bb2 Bh2 Rb1 Ra6 Ba1 Rf6 Rb2 Qb1 Rb3 Rg8 h8Q d1Q Qh6 Rf4 Qd6 Rh8 Qd4 Rh4 Qe3 Rf4 Rb2 Rg1 Rd2 e1R Rd4 Re2 Re4 Rgg2 Rc4 Nd7 b8B Qg1 Bd6 Rh7 Bc7 Nb8 Qe4 Nc6 Bb2 a1N Qe3 Nb3 Ba1 Ka6 Rc5 Nd2 b5+ Ka7 b6+ Ka6 b7 Nf3 b8Q Qg8 Qb3 Nb8 Qb4 Qf8 Rc4 Qe8 Qd6+ Kb5 Bb6 Be6 Bd8 Bc8 Bc7 Qb4+
1N2rr1n/B2P2b1/RP1rn3/p1R5/k6q/B3q1Q1/1bbNQ2P/KB1n1qq1 w - - 0 1 illegal: No possible last move, all moves rejected
K2B2k1/QrPq4/Q1qRnP1r/1npn1Nb1/2R1rNb1/P7/1NbrB3/3q4 w - - 0 1 illegal: No proof kernel
1N2kN2/qQPrbbPR/8/2Q1r1B1/q5Pn/3nKn1p/br3r2/4RBQq w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 d5 a4 f5 c4 b5 g4 h5 e4 h4 c5 b3 a5 h3 a6 b2 e5 b4 g6 d3 e6 d4 c6 b3 e7 f3 c7 f4 g7 f2 a7 f3 Rh2 Na6 Rg2 Nc5 Qc2 Rb8 a8Q Nh6 Qa6 Nf5 Be2 f1Q Rf2 Rh5 Ra2 Be6 Rg2 f2 Qd1 Bf7 Qd6 Nh4 Nf3 Re5 Ra6 Qh1 Nc3 f1R Na2 b1B Nb4 b2 Ng5 Bba2 Nc6 Rf2 Qg1 Rb5 Rb6 Qa8 Nh7 Qa7 Nb8 Rb4 Qd5 Rb3 Rh6 b1N+ Ke1 Rb4 Qb7 Rb2 Bg5 d2+ Kd1 Nd3 Bf1 Na3 Rg3 Nc2 Re3 Nce1 Re2 Rff5 Re4 Nef3 Ke2 d1R+ Bd2 Nc5 Kf2 d3 Re1 Rb6 Bf4 d2 Bg5 Rb2 Rh5 Rd5 Ke2 Nd3 Qc5 Rd7 Ke3 Rc1 Rh6 d1Q Rh5 Qda4 Rh6 Rcc2 Rh5 Bfd5 Rh6 Kf7 e8Q+ Kg8 Rh5 Bdc4 Ke4 Rh2 Qg1 Rhf2 Qe5 Kf7 Qc5 Be7 Nf8 Ke8 Rh7 Bf7+ Ke3 Re5+
KB4r1/r1pQR1N1/2P1nbBb/3P2Q1/Pk1n2Nq/2bqn3/2q4R/2q1rB2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 Kb5 b3 c4 h4 d4 b2 f4 e3 a4 e4 g5 h3 g6 h2 g7 e2 d5 e1B f5 e3 f6 e2 f7 Na6 Nc3 b1Q+ Ka5 Kc5 Qb3 b5 Qa3+ b4 Nf3 g1B Nh4 g2 Nf5 Qh4 Nd1 Qd3 Nf2 Rb8 Bf4 Be7 Qc1 Nf6 f8Q Bc3 g8B Ng4 Qc8 Rb7 Bf7 Bef6 Bg6 Rg8 Qd7 e1Q Bg5 Qed2 Be2 Q2c2 Nd1 Bf2 Ng7 g1N Ne3 Nf3 Qd2 Bg3 Rae1 Bf4 Qc1 Be7 Bf6 Bh6 Bg5 Bef6 Qd2 Kd4 c5 Qc1 c6 Kc5 Bf4 Qcc2 Bg3 Qc1 Bf2 Qcc2 Rhg1 h1Q Rg2 Qg1 Rh2 Qh1 Ng2+ Kc4 Bb6 Nd4 Ba7 Nc5 Bb8 Kb3 Qg5 Qg1 Bd1 Qh1 Re7 Nce6 Ne3 Q1e1 Nc4 Ne3 Ne5 Qef1 Ng4 Kc4 Ka6 b3 Nh5 b2 Ng7 b1R Be2 Qfd1 Bf1 Qdd2 Qc8 Re1 Qe8 Qdc1 Qd7 Rb6+ Ka7 Kb4 Ka8 Rb5 Rg2 Rb7 Rh2 Ra7+
2r1K3/k1bn2b1/6r1/2PN2qb/1QRr1Pn1/P2RBnn1/1pN1BR2/3n1Q1n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 Kd3 d5 f4 Kd7 c4 Kc7 g4 Kb6 a3 e5 g5 h5 c5+ Ka7 g6 h3 f6 b3 f7 b4 g7 e4+ Ke2 e3 Kd3 e2 Qe1 h4 Nc3 b2 Na2 b1N Bg2 b3 Nc3 h2 Qf2 e1B Ne4 h3 Ng3 b2 Nf3 Nf6 g8Q Nd2 Nf5 Nbd7 Nd6 Bg7 f8R Rh6 Ne4 Rg6 Nc3 Ng4 Bf1 Qg5 Be2 Rb8 Qg2 Bh4 Ne1 Nf3 Rf1 h1N Rf2 h2 Be3 Ng3 Nc2 h1N Rc1 Bb7 Qf1 Rc8 Rf6 Bc6 Rd6 Ba4 Nb4 Bd1 Qd8 Qh6 Qe8 Bd8 Nc2 Qg5 Qe4 Ne1+ Kd2 d3 Qb4 d4 Nd5 Ng2 Na1 Nh4 Rc4 Bb3 Nc2 Nf3+ Kd1 Ba2 Na1 d2 Kc2 d1N Kd3 Bb3 Nc2 Ba4 Rc3 Bc6 Kc4 Bb7 Kb5 d3 Rc4 d2 Nb6 Be4 Rdd4 Bd5 Rd3 Bf7 Nd5 Rgc6 Re4 Bh5 Rc4 Rg6 Nf6 Bc7 Kc6 Bd8+ Kd6 Nc3 Ke6 d1R Kf7 Rd2 Nd5 Nd1 Rb3 Rd3 Ke8 Rd4 Rd3 Bc7+
n2KBbR1/6Q1/1QnN2P1/1rNRBPN1/n6P/3b2r1/pn1bqn1k/1n1r4 w - - 0 1 illegal: No proof kernel
bR2N1r1/B1r2Q2/1n1qq1RB/k3P1Q1/b1P1BP2/1n1bbpb1/b7/b2NK3 w - - 0 1 illegal: No proof kernel
2Q1N2q/1Rp3KP/1r2q1B1/k4b1B/qR3Q2/qPRr2nN/q1Pb3q/1q1n4 w - - 0 1 illegal: No possible last move
1N4r1/Pk1N3q/1q3r1B/Q1qq1P1n/KPN1qq2/RbQB2q1/2R2p2/n1b5 w - - 0 1 illegal: No proof kernel
nBbR4/N2Q1bnn/1b2r3/1Pn4P/K3qb2/bQ4r1/B1B2pRP/2n1k1N1 w - - 0 1 illegal: No possible last move
1rQNKb2/r1r2n2/1b3BRP/b6b/3PB1qQ/1rb2N1n/r1p1R2P/1B3k2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 gxh5 dxc4 Nh3 f5 Ng1 fxe4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 Kg6 e5 Kf7 b5 f4 g5 a4 c5 d3 e3 h6 b3 f5 g4 f6 e2 a5 e1B a6 b4 a7 b2 Qc2 b3 Nc3 b1R Qd1 g3 Ra3 g2 Bf4 e4 Nh3 g1B Bc1 b2 Bd2 e3 Ra1 e2 Bg5 Qd7+ Kg6 Qg4 Kf7 Rh7+ Ke8 Nd7 f7 Ne5 Qb3 Ne7 Na2 c3 Nf4 Ke3 Ng2+ Kf2 Bf4 c2 Bc1 c4 Nh4 c3 Qc4 N7g6 Bg5 c1R Bf6 Nf4 Nb4 Nh3 Nf3 c2 Ra6 Bc3 Nc6 e1B Nd8 Bf5 Be2 Bg6 Qb4 Rb8 a8B Bh5 Be4 Ra1 Qc4 Kg2 Re6 Bb6 Rg1+ Kf2 d4 b1R Qc8 Rb3 Bc4 Ra7 Re7 Qf4 Rg6 Rca1 Qg4 R1a2 Qh4+ Qg3 Bcd5 Kf1 Be6 Bg7 f8Q Qg4 B6d5 Nf7 Re5 Kg2 Qc5 Kf1 Qc8 Bf8 Be6 R2a6 B6d5 Bca5 Re7 Bec3 Be6 Ra3 Ba2 Rb3 Bb1 Ne5 Re6 Rhc7 Bf5 Nf7 Re2 Bab4 Bd3 Ra2 Be4 B4a5
5R2/B1KB1r1N/3n1b2/RQNpP1nb/qrbP3r/1nrbP3/4rk2/1N5Q w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 gxh4 b4 a5 c3 axb4 Qa4 bxc3 Qc2 Qg5 Qd1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 d5+ Kd4 f5 a4 b5 e3 c5+ Kd3 h3 a5 b4 a6 f4 a7 h2 g5 Kf5 g6 f3 g7 Kg4 Ne2 f2 Ba3 Kf3 Bb2 c2 Qe1 c1R Ng3 c4+ Kd4 b3 d3 c3 Ra2 c2 Qb4 h4 Qc3 h3 Ba1 b2 Qc6 Bf5 Qb7 Nh6 g8N Nc6+ Kc3 Ne7 Kd4 Rh7 Kc5 Bg7 d4 Qd7 Kb6 Bd3 Nf6 Nc8+ Kc5 Nf7 Nge4 Qa4 Qb4 Ncd6 Kb6 Ng5 Rg1 h1B Rg2 h2 Qb5 Rf8 a8Q Rh4 Kc6 Rf7 Nh7 Bf6 Qh8 Re1 Ra3 c1N Nc5 Nb3 Rg1 Re2 Bh3 f1B Bd7 Bhg2 Kc7 h1R Ra2 Bh3 Rg4 Rhh2 Rf4+ Kg3 Rf5 Bg4 Ra3 Bh5 Rf4 Qb4 Ra5 Qa4 Rf5 Rc2 Rf4 Rhe2 Rf5 Re7 Rf2 Rc3 Rf5 Bg7 Rf8 Bf6 Qg7 Bc4 Qf7 Nd2 Nd3 Re1 Na3 b1R Bb2 Bh8 Qf6 Bfe2 Qf1 Rf7 Qh1 Bf6 Bc1 Rbb3 Nb1 Bf1 Ba3 Rb2 Nc1 Bfd3 Nb3 Kf2 Bc5 Re2 Ba7 Re7 Nc5 Rf7 Rh8 Rb4 Rf8 Nb3
1r5Q/1n3K2/2q1bN1p/1r1QPR2/2bP3P/B2b3B/B1qn3r/Rr1r1rkN w - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g3 f5 Qc2 f3 Kd1 f2 Qb3 f4 Kc2 Bd6 Qa4+ Kf8 Qb3 f3 Qa4 Bf4 gxf4 Bf5+ Kb2 Bd7 Qd1 Ke8 Kc2 Bc8 a4 Ke7 d4 Kf6 e4 c5 f5 b5 a5 g5 h3 c3 Kd3 c2 a6 c4+ Ke3 b3 a7 b2 Bd3 f1R Ne2 f2 Ra4 g4 Kf4 g3 Na3 b1B Rb4 g2 Be3 g1R Nc3 c1Q Nc2 Qb6 Na2 c3 Rb3 b4 Bc4 Qc6 Qf3 Rg5 Ne1 c2 Nd3 Nd7 Nc3 Rb8 a8B Nc5 Bb7 Qd1 Bc1 Be6 Bc8 Nb7 Ba3 c1R Qg2 Qc2 Nd5+ Kg7 Ke5 Kh6 Qf3 Rcd1 Nf6 Rh5 Rc3 Kg5 Ba2 Kh4 Rc5 b3 Rb5 Rg5 Qh5+ Kg3 h4 Kg2 Qf7 h6 Qd7 b2 Qd5 Rg3 Rc5 Rh3 Ra5 Rg1 Bd7 f1B Nf2 Bc4 Rb5 Rge1 Rf1 Qa4 Nh1 Bbd3 Bc8 b1R Rc5 Ba6 Rc1 Rb5 Ra1 Qac2 Bd7 Bf7 Ng4 Rdb1 f6 Red1 Bf8 R5b3 Ba3 Bac4 Bf5 Be6 f7 Rh2 f8Q Nf6 Qfd8 Rh7 Qh8 Rb5 Rf4 Nh5 Rf1 Ng3 Kf6 Rd7 e5+ Ne4+ Kg6 Rf7 Rf4 Bd7+ Be6 Rf5 Nf6 Kg1 Kf7 Nd2 Rf3 Rf4 Bh3 Rf5 Re3 Rff1 Rf3 Bc8 Rf5 Be6+
8/3n2bQ/1kN1P1q1/1Br1BP1r/b1r1qr2/1R1KpQQr/2n1P1R1/1N2br2 w - - 0 1 illegal: No possible last move
2q2bB1/n7/RRN1Pbbp/P1b4Q/2kP2NB/1b3rr1/q4b1K/3n1qQB w - - 0 1 illegal: No proof kernel
8/2qr4/1p3n2/1rR3PB/Nb2R1rQ/B1KPNk2/bQPn1r1q/q1r2Qr1 w - - 0 1 illegal: No possible last move, all moves rejected
r2b4/n1Q1K2P/rB1Q2bb/R7/1RpNP1BP/3Rn2b/N3n3/1bqbkq2 w - - 0 1 illegal: No possible last move
1b1Q2r1/bnrr3P/1P1n3n/1BP5/2p1bNrN/1r2N3/RQ1RK2b/B3q1k1 w - - 0 1 illegal: No proof kernel
1B2k3/K1nb1pr1/2Q1nb1R/2rN4/Qb2Pq2/1Nr2NP1/1r3nP1/Rn1B1n2 w - - 0 1 legal: proof: f4 a5 c4 e5 b4 exf4 c5 axb4 c6 g5 Nf3 g4 Ng1 g3 hxg3 dxc6 Nc3 c5 Nb1 c4 Kf2 h5 a4 b5 e4 c5 d4 c3 a5 f3 Ke3 h4 d5 b3 a6 b4 d6 f2 a7 c4 Kd4 c2 Kc5 c3 Bh6 c1R Be3 h3 Nf3 b2 Be2 f1N Bh6 h2 Bd2 b3 Qc2 Rh5+ Ne5 Nf6 Ra2 Na6+ Kc6 Nh7 Bd3 Nc7 Kb6 Ng5 Ra1 Nge6 Bf4 Bd7 Bb5 Qh4 Nd2 b1N Be2 b2 Qa4 c2 Nef3 Rc5 Bd1 Qf6 Be5 Qf4 Nb3 Be7 Qc6 Bf6 Kb7 Rc8 a8N Rd8 Nb6 Rc3 Rg1 h1N Nd5 Nf2 Ka7 Rb8 Qa4 Rb5 Rh1 Rbc5 Be2 Rd1 Qc6 c1B Rh6 Rd4 Qa4 Bd2 Bd1 Rb4 Qc6 Rb8 Qa4 Na3 Qc6 b1R Qa4 Rb2 Qc6 Nb1 Qa4 Bb5 d7+ Kf8 d8Q+ Be8 Qc8 Rbb5 Qca6 Bd7 Qc6 Ke8 Ne3 Be1 Bd6 Rg5 Nd5 Rbc5 Be5 Rg7 Bd6 R3c4 Be5 Bb4 Bd6 Rc3 Be5 Na8 Bb8 Nac7
N4q2/P3bn2/1PnpP1Br/6k1/1b2r1N1/1QbBbb2/2K1r2q/RQ1RB1b1 w - - 0 1 illegal: No proof kernel
2k3K1/nN6/BBrr1b2/Nn5N/1rQrR1P1/rnn3p1/1P1qRQ1P/1q5b w - - 0 1 illegal: No proof kernel
1qkr2b1/8/r1B2n1R/bN1PP2b/Rb1qbrP1/2p1Q1QK/1N2n1B1/B5r1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 g4 c5 Kg2 b5 a4 f5 d4 h5 e4 c3 e5 c4 g6 c2 a5 b3 g7 b4 a6 f3+ Kg3 f4+ Kh3 b2 a7 h4 Ra5 b3 Na3 b1B Bd2 c1B Ne2 b2 Qe1 f2 Be3 f3 Bh6 Nc6 Be3 Nf6 g8B Bb4 Ng3 Bcd2 Bf4 Bg6 Ra4 b1Q Bd3 f1R Qc1 f2 Nh5 Rg1 Bc2 f1R Be3 Rf4 Nb5 Ba5 Bf2 Bdb4 Be4 Qb6 d5 Nd4 Qe3 Ne2 Bf7 Qd4 Bg2 Rd8 Be1 Qbb2 Bc3 Qb3 Ba1 c3 Qg3 Qb1 Nd6 Kc7 Be8 Be6 Bc6 Bg8 Nb5+ Kc8 Rh2 Rf3 Nf4 Bh5 Nd3 Rf4 Rh1 Qb3 Kh2 h3 Nb2 Rb8 a8Q Rd6 Be4 Rd8 Qa7 Ra8 Qc5 Ra6 Bg2 Qbc4 Na3 Qb5 Qa7 Qb8 Nb5 Qc4 Qae3 Qd4 Qh4 Nc1 Kg3 h2 Kh3 Ne2 Qhg3 Rc1 Rf1 h1B Rf3 Rg1 Rf1 Re4 Rf5 Rf4 Rg5 Rf5 Rg6 Rff1 Rh6 Rf4 Bf1 Bf3 Bg2 Be4
8/1N1q2K1/4BPb1/4rqn1/5bRB/r1PR1pPq/1Q1rR2n/2NQqqkr w - - 0 1 illegal: No proof kernel
R7/1Nrn4/1Rq1pnKN/Q1B5/qn3bBB/1nPq2P1/3P2k1/nQqbr3 w - - 0 1 illegal: No proof kernel
1brNkr2/2n5/Q1p1bR1n/1q5q/Q4Qbq/1qPNKPP1/2B5/b1Rb1B2 w - - 0 1 legal: proof: e4 b5 d4 g5 a4 e5 axb5 f6 h4 gxh4 Bf4 exd4 e5 Nh6 e6 Ng8 Be5 fxe5 Kd2 d5 b4 a5 c3 h5 g3 e4 b6 d3 b7 e3+ Kc1 e2 Kd2 e1Q+ Kc1 c6 b5 d2+ Kc2 h3 Kd3 h2 e7 a4 b6 h4 Qg4 d1Q+ Nd2 d4 Nf3 a3 Ra2 h3 Qh4 Qb3 Qg4 Nh6 Ng5 Na6 b8Q Be6 b7 Qe5 Nde4 Nc7 Qa7 Rc8 b8Q Qeb5+ Kd2 d3 Nc5 Rg8 Ke3 d2 Nf7 d1B Qga4 Bg7 Rc2 a2 Rc1 a1B Nd3 Rf8 Q7a6 Be5 Rg1 Qdd5 Nd8 h1B f3 Bg2 Rh1 Qdc4 Rh2 Qh4 Rh1 Q5d5 Qbb4 h2 Qd4 Bgh3 Qf4 Kd7 e8B+ Ke7 Ne1 Qdb5 Bg6 Bhg4 Bc2 Ke8 Nd3 Bd6 Rg1 h1Q Rg2 Na8 Rd2 Bb8 Rh2 Nc7 Rh3 Qe7 Rh5 Qh7 Rf5 Qh4 Rf7 Qg6 Rf6 Qgh5
2K1R1QN/kq2R1r1/n2qBNr1/1q1Bqbr1/Q4b2/3P1pPn/b4P2/Qb6 w - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 b5 axb5 e5 d3 g5 Kd2 gxh4 Kc3 e4 Bd2 e3 Kc2 exd2 Kc3 Kd7 Kd4 a5 Ke5 c5 e4 Kc7 b4 Kb7 b6 f5 b5 h5 g3 c3 Qe1 d1B Rh3 f4 Rh2 a4 Qe2 h3 Qg4 c2 Qg6 c1R Be2 c4 Nf3 a3 Nbd2 h4 Qg4 a2 Qe6 c3 Qf6 c2 Qg7+ Ne7 Nb3 Rh7 Qg4 Nd5 Nbd2 Rg7 Rh1 h2 Ng5 h3 Bf3 Na6 Nf7 Bf5 Re1 h1B Nh8 h2 Bg2 Kb8 b7 Ka7 Rb1 a1Q+ Rb2 Bh7 Ke6 Bd6 e5 Qb6 Ne4 Rag8 Nf6 Rg6 Kd7 R8g7+ Kc8 Rg5 e6 Bf5 Rb3 Qe5 Re2 Ra1 Rc3 c1Q Rc7 Bc2 Re7 Qa3 Re4 Qa4 Qd1 Ra3 Qa1 Bb1 Bf3 Bg2 Re8 h1Q Re1 Nc3 Bd5 Qh6 Re7 Ne2 Re8 Rd7 e7 Ng1 Be6 Bd5 Re3 f3 Re2 Qbd4 Re1 Kb6 b8Q+ Rb7 Re4 Nh3 Qa8 Bda2 Re3 Rd7 Qe4 Qab4 Qg4 Ka7 b6+ Ka8 b7+ Ka7 Qh4 Qdb6 Qe4 Q4b5 Qa4 Bc5 Re2 Be3 Bd5 Bf4 Re1 Qbd6 Be6 Kb6 b8Q+ Rb7 Qa8 Rd7 Qd5 Ka7 Bg8 Rc3+ Qdc4 Qed5 Nh5 Qdb6 Re5 Qhd6 Re3 Rg6 Nf6 Bg4 Re4 Rc2 Re5 Re2 Re4 Qf5 Qf7 Qfe6 Qg7 Qef5 Bd5 Re3 Re6 Re5 Qg8 Qe4 Rd8 Reg5 e8B Rdg7 Bd7 Qee3 Rde8 Bf5 R6e7 Qee5 B7e6+ Qb7+
7B/bq2krb1/1Q5b/R1rbpPn1/2P2Q2/1B1qRPN1/3n4/NNKr1nr1 w - - 0 1 illegal: No possible last move, all moves rejected
3kq2b/3B4/Qr1n1b1P/Q2b1P1R/qrRN2PB/3QqN2/q1n2K1p/1rr5 w - - 0 1 illegal: No proof kernel
3nr1R1/4n2K/n2rR2P/PbBBb1QQ/2nN2N1/1Q1r1p1P/6q1/r3qkq1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 a4 b5 c4 d5+ Kf3 Ke5 e4 f5 h3 b3 h6 b2 c5 g4+ Kg2 b4 c6 d3 c7 Kd4 e5 b3 e6 f3+ Kg3 f2 Kf4 g3 e7 g2 Kg5 f4 Kg6 f3 e8Q d2 Nc3 b1N Ba3 b2 Nge2+ Kd3 Qc1 g1N Ng3+ Ne2 Nh5 d1R Bd6 d4 Bc5 Nd2 Ng3 b1Q Qe6 Qe8+ Qf7 Nc4 Na2 Na6 Ba3 Bg7 Nh5 Be5 Nc3 Bd7 c8Q Bb5 Nf6 Ne7+ Kg7 Qb2 Qce6 Rd8 a5 Rd6 Rg1 Rd2 Bg2 f1Q Bc5 Nf4 Ne2 Qf2 Re1 Qg1 Qh5 Ke3 Rb1 Kf2 Qd5 Rf8 Kh7 Ne6 Bf1 Rd3 Qcg5 Nd8 Rbd1 Ra3 Rd3 Ra1 Re3 d3 Nd4 d2 Ng4+ Kg3 Bd3 Kg2 Be4 d1R Qdf7 Qa2 Bd5 Rd3 R1e2+ Kf1 Rg2 Bf6 Re6 Be5 Qff4 Qaf2 Qc1+ Qe1 Qc3 Qd7 Qb3 Re8 Rg6 Qf5 Re2 Qf4 Rg8 Qfh2 Re4 Qhg2 Re2 Bg3 Re6 Be5
qn6/K3RNk1/4B1pr/3nrnqb/1P6/1RP2Nn1/2BbQPQ1/1qBq2r1 w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 a4 bxa4 g4 hxg4 Bh3 f5 Bf1 fxe4 Kd2 Kf7 Kc3 e5 Kc4 a5 Kb5 d5 h4 a3 b4 e3 h5 e2 c6 e1N c3 d4 h6 a4 h7 g6 c7 d3 Kb6 e4 Qf3+ Nf6 Rh5 g3 Ra2 e3 Qb7 d2 Bb2 d1Q Bg2 e2 Bf3 g2 Nh3 g1N Rf5 Ra5 Re5 Nc2 Rc5 e1R Re5 Bg4 Ba1 Bh5 Qd5+ Kg7 Rb2 a2 Ng5 a3 Qb7 Ne2 Re4 Ng3 Nd2 Nd4 Rb3 Ndf5 Nf7 Re5 Bb2 a1Q Ka7 a2 c8B Rg1 Be6 Qab1 Bc1 Nd5 Bg4 Qc8 Nf3 a1Q+ Qa6 Qab2 Qe2 Qbd2 Re3 Qc6 Re4 Nh6 Bgf5 Qg5 Re3 Be7 Bc2 Nhf5 Re4 Qg4 Re3 Bg5 Re4 Bd2 Re3 Rg8 Re4 Qg5 h8Q+ Kf8 Qf6 Rh8 Qe7+ Kg7 Re3 Qf4 Qg5 Rh6 Qg4 Qg5 Re4 Nf1 Qg2 N1g3 Rc4 Qd6 Rc7 Qc6 Re7 Qa8+
2kn1B2/1n2rb1b/3B1pq1/1QPQq3/2N2nq1/P2nP3/RR2B3/q1rNb2K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 g5 Kg2 b5 c4 d5 h4 Kd7 a3 g4 e3 g3 h6 b3 h7 d3 h5 b4 h6 d4 Qe2 f6 Qa2 d2 Rh3 d1N Nd2 f3+ Kh1 d3 Nb1 g2+ Kh2 f2 Bd2 b2 Nf3 g1N Rh4 b3 Re4 Qe7 Nc3 b1B Kg2 b2 Nb5 Ne2 Nh4 Na6 Kh1 Nf4 Ba5 d2 Re6 Ra7 Ng6 Nc5 Bh3 Nb7 Bb4 f1Q+ Kh2 Qe8 Bd6 Ne7 Nc3 Nc6 Bg4 Nf2 Nd1 Ncd8 Be2 N2d3 Qb3 Qf3 Ra2 Qg4 Kh1 Qe7 Re4 Qe5 Qb6 Rg8 h8Q Rg7 h7 Re7 Qg7 Ra5 h8B Rc5 Qb3 Bc2 Qb6 b1Q Qf7 Qba1 Qd5 Qgh5+ Nh4 Qg6 Nf3 Rc6 Qbb5 Bb1 Bb4+ Kc7 Bg7 Be6 Rd4 Kc8 Bd6 Bf7 Bh6 Ne1 Rd3 Rc5 Rb3 Ned3 Rbb2 Rc6 Nh2 Bc2 Nf1 Bb1 Nc3 d1Q Bg7 Qa4 Nd2 Qd1+ Bf1 Qdg4 Be2 Re8 Nd1 Be7 Bc7 Bb4 Bd6 Re7 Bf8 Bc2 Nb3 Be1 Na5 Rb6 c5 Bb1 Qbc4 Rb3 Qa4 Rc3 Qb5 Rc1 Nc4 Qge4+ Kh2 Nf2 Nc3 Qe4f5 Nd1 Be4 Qa6 N2d3 Qb6 Qfg5 Qb5 Bh7 Kh1 Qg6
n1n1bQ2/1q2K3/1n1R1prP/2rPQ1Q1/qnr1N3/R3B3/b1k2bP1/1r3B1N w - - 0 1 illegal: No possible last move
R2bN3/q1QQnnb1/1n1P4/1N1bRB1r/k7/1rBb3P/1pP2n1K/q2qQ3 w - - 0 1 illegal: No proof kernel
1rN1RRN1/5QBb/1qqPnP1p/nPn5/2Qbr3/k2b3n/1r4B1/1BKb4 w - - 0 1 illegal: No proof kernel
4N2R/1B4r1/R1PNb1b1/1brB1qQn/r2BP3/n1q2p2/Q4P2/Kr1knn2 w - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 Rh3 c5 Rh1 cxb4 a3 gxh4 Bb2 b5 Nc3 b3 Bc1 b4 Nb1 b2 Qd3 b3 Qd1 Bb4+ axb4 Qc7 Bf4 Qb6 Bc1 Qd8 Kd2 Ke7 e4 Kf6 c4 Kg5 g4 Kf4 b5 h5 g5 f5 g6 d5 b6 a5 c5 h3 c6 h2 g7 d3 Kc3+ d2 b7 h4 Qe1 h3 Qd1 a4 Na3 b1N+ Kb2 d4 Nc2 d3 Nf3 Na6 Ng5 Na3 Ra2 Qa5 Ne3 Nb4 Nf7 Be6 Nd6 Rh7 b8Q Nbc2 Qf8 Nf6 g8B Rg7 Bh7 Ne1 Bg8 Nh5 Qc2 Kf3 Ka1 d1B Nec4 d2 Rg1 h1N Rb2 h2 Qf6 f4 Qb1 Qf5 Rg4 N1g3 Ne8 h1R Bd3 Nf1 Ne3 Be2 Qd4 d1B Ba6 Bb5 Bd2 Ke2 Nc4 f3 Rc2 b2+ Ka2 Bf7 Rc1 Bg6 Qe5 Rh3 Qa1 b1R Be3 Rb3 Qb1 Rb2+ Ka1 Bb3 Ncd6 Be6 Qa2 Rh1 Rc4 Kd1 Rh4 Rg1 Qc5 Rg5 Bd4 Qd5 Rb4 Nhg3 Rc4 Bef7 Bc8 Nb1 Rh8 a3 Ra4 Nh5 Qac4 Qe6 Q5b4 Rc5 Bb7 Qf5 Qbc3 Ra6 Qe3 Ra7 Qg5 Bd5 Ra6 Bdf7 Rb6 Bd5 Be6 Ra4 Bec8 Bdf7 Be6 Bg8 Bd5 Be6 Nf7 a2 Ra6 Na3 Nfd6 Rc2 Rf8 Rc1+ Kb2 a1Q+ Kb3 Qc3+ Ka2 Rb1 Rh8 Rb2+ Ka1 Qd2 Qa2 Qb4 Rb6 Qc3 Ra6 Rb1#
8/nNqr3R/PK5b/Q2P2Bp/3B3N/R1nQq2P/rk4bq/r1Nn1rq1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 g5 b5 g4 e3 a6 Bd3 axb5 Be4 b4 Bf3 gxf3 Kf2 Ke7 d4 Kf6 g4 c5 a4 b5 d6 h5 a5 b3 e4 b2 h3 b4 d7 c4 Rh2 b3 Be3 c3 Qe1 c2 Na3 c1Q Nb1 Ne7 Ne2 Bh6 Qd2 Nbc6 Qd1 Na7 Qc2 Nf5 Qd1 Rh7 Nd2 b1N Rg2 b2 Ra3 Qdc7 d8B+ Ke6 e5 Kd5 g5 Bb7 g6 Nc3 e6 b1R g7 Ra1 g8Q f6 Qh1 Rd7 Qg3 Qc2 e7 Qe4 Nf1 Kc4 e8N Kd3 Be7 Kc2 Nd2 Kb2 Qe1 Ra2 Nd6 Qe6 Kf1 f2 Nc1 Bf3 d5 Qe5 Bc5 Qe3 Rg1 Be4 Qf3 Ra1 Kg2 f1R Bd4 Ra2 Nb7 Ra1 Kh2 Ra2 Qfg3 Bg2 Nf3 Ra1 Nh4 f3 Bd8 f2 Be7 Qd2 Bd8 Ne3 Be7 f5 Bg5 f4 a6 Rc8 Qf3 Nd1 Qd3 Qc2 Qed2 Re8 Qe1 Re5 Qed2 f3 Kg3 Ra2 Kf4 Ree1+ Kf5 Qh2 Qf4 Qe2 Qc7 Qe3 Qa5 Re2 Nb3 Rc2 Kf6 Rc1 Kf5 Rca1 Nc1 Re1 Kf6 f1Q Kf5 f2 Kf6 Be4 Ke6 Qfe2 Rg3 f1Q Rf3 Q2d2 Rf7 Qc2 Rg7 Qfg1 Rh7 Rd8 Ke7 Rf1 Ke6 Re8+ Kd7 Bg2 Be7 Rg8 Bg5 Rg6 Kd8 Rd6+ Kc7 Rd7+ Kb6 Qa4 Re7 Qc4 Rh7 Qcc7+
4qR2/3n2NP/2P1qB1q/kr1qpBNQ/2K1Q1nr/b2R3b/5BbP/3nn3 w - - 0 1 illegal: No possible last move, all moves rejected
Q1nrn2K/b4rpP/2nR1BQ1/2NNB3/Pb4R1/1P1b3q/2B2kbq/1r3r2 w - - 0 1 illegal: No proof kernel
rnnrqNb1/3Q1PP1/k3brqb/6RR/5NQ1/B1Qp1K1n/7P/4nBb1 w - - 0 1 illegal: No proof kernel
8/2rNP1nB/K3Prq1/2bPBRn1/2pb2Rb/QN1bq3/n3q1Qn/1N2k3 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 d4 Kd7 Kd2 Kc6 h4 Kd5 a4 Ke4 e6 c5 h5 f5 a5 g5 a6 b5 h6 c3+ Kc2 g3 Kb3 g4 a7 c4+ Ka2 c2 h7 g2 e3 f4 d5 f3 Bd2 c1B Qe2 g3 Rh5 f2 Rg5 Nf6 Qh5 Nbd7 Rg8 Qe7 Na3 b3+ Kb1 b4 Be2 f1N Bc3 b2 Ka2 b1N Bg4 Kd3 e4 Nc5 e5 Ne8 Qh2 Bg5 Kb2 b3 Qh3 Ne4 Bh5 Nh2 Ne2 g1Q Bg6 Ng7 Qg2 Qe3 Nd4 Bh4 Ra2 Rb8 a8N Rb7 Nb6 Rc7 Nd7 Qe8 Bf5 Bc5 e7 Qh5 Rf8 Rg8 Rf7 Rf8 h8Q Qd1 Bh7 Qde2+ Ndc2 Bd4 Rf5 Ng5 Qg8 Bc5 Bd4 Kd2 Na1 Rf6 e6 Nc3 Qf3 g2 Be5 g1B Qh3 Bd4 Nb1+ Ke1+ Ka3 b2 Kb4 Bb7 Ka5 Bc6 Nb3 Ba4 Ra1 Na2 Ka6 Bc5 Qg2 Bgf2 Qa8 Bg1 N3d2 Bc2 Nb3 Bd3 Qa7 Bd4 Qc5 Bgf2 Qa3 Nc3 N1d2+ b1Q Ra2 Qc2 Rb2 Na2 Nb1 Qcd1 Rd2 Qh5 Rc2 Qg6 Rb2 Bg1 Rbf2 Bc5 R2f4 Qde2 Rd4 Q3d2 Re4 Bgd4 Rg4 Qde3
5KR1/4P3/b2Qpn2/3Bbr2/1Qq2rbq/bR1NPr1P/r6N/Q1q2nkB w - - 0 1 illegal: No proof kernel
n1k1Bn2/1r2P3/P1r4p/2QbK3/nB1R1QP1/1q4b1/qNn3qR/2rrNB2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kf2 d5 Kf3 Kd7 a4 b5 e4 f5 c4 b3 g4 b2 e5 h6 c5 d3 a5 d4 a6 b4 g6 d2 g7 b3 Bh3 d3 Ra4 Bd6 Na3 b1Q Ne2 b2 Nd4 Rh7 Qe1 d1N Be3 d2 Ndb5 Qa5 Qg1 Nf6 g8B Ne8 Nd4 Nc3 Qh2 Bb7+ Bd5 Nc7 Bf1 d1R e6+ Kd8 c6 Nd7 Bg1 Rc8 Bdc4 Na8 Ndc2 Nf8 Ne1 Qb6 Bf2 Qb3 Bb5 Q1a2 Nc4 b1R Bc5 Rbc1 Be2 Kc7 Rb4 Na4+ Kf2 f3 Nb2 f4 Qg3 Kb8 Rh2 Rhc7 e7 Be5 Kg1 f2+ Kg2 f1N Rd4 Ne3+ Kf3 Nc2+ Ke4 f3 Bb4 f2 Qf3 Bg3 Qf4 f1Q Ke5 Rd7 Bed3 Qg2 c7+ Ka7 Bg6 Bd5 Bc4 Re8 c8Q Rb7 Qc6 Kb8 Bf1 Rc8 Qc5 Rc6 Be8 Kc8
3Bkr1b/1b1RP2p/2bqrQ2/NP1R4/2n1P2N/R5nn/3n4/b1KqrQ1B w - - 0 1 illegal: No possible last move, all moves rejected
1qbrR2B/3PNQ2/Q3qr1r/R2Kn3/1qBpPP2/b1k4q/BN2r2n/6n1 w - - 0 1 illegal: No proof kernel
1k3b1n/1q1PQ2b/nBP1K2P/2r4q/QNrp2bn/3r4/nN3NB1/b1R2R2 w - - 0 1 illegal: No proof kernel
1b1rB1kr/2NPBp2/Q1nq4/1K3P1q/2Q2q2/1R4P1/1qNR1n2/1bB1b1br w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 a5 f4 e5 d4 h5 c4 a4 c5 b3 b6 a3 g3 e3 Kd3 e2 Kc4 e1Q d5 h3 c6 e4 c7 b2 b7 e3 d6 h4 Qb3 h2 Qc3 h3 Qf6 e2 Be3 a2 Qd4 Nh6 Nf3 Qd2 Qc5 Bf5 c8Q Ng4 Na3 b1Q Ne1 Be4 Rg1 h1Q f5 h2 Rg2 Bh6 Qd4 Kf8 Nb5 Bf4 Qc6 Qf6 Qa6 Kg8 Qc3 Qbc2 Rb1 a1B Rb3 Qa2 Qb4 Bb1 Nc2 e1B Qba4 Qf2 Bc1 Bd4 Bd3 Qf3 Rd2 Bg1 Be4 Qg6 Bc6 Qb2 Be8 Nc6 b8B Nf2 d7 Bd6 Ba7 Rd8 Bc5 Bb8 Be7 Qd6 Nc7 Qff4+ Kb5 Qhf3 Qb4 h1R Qc4 Qh5
1q1n1r2/1P2NR1n/1bp1P1P1/brrb2n1/1Q3r2/1QBN4/3R1nqk/Q3K2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Ke6 e4 h5 g4 a5 b6 f5 d5+ Ke5 b7 a4 b5 c3 b6 c2 g5 h3 d6 h2 d7 f3 g6 a3 Bg2 h4 Ne2 a2 Qd2 f4 Bf1 h3 Nd4 f2+ Ke2 f3+ Ke3 Nc6 b8Q Bb4 b7 Ra5 Na3 Nf6 Qa7 Rb5 Qe1 Ba5 Qc3 Rf8 Kd2 Kf4 e5 Kg3 Bc4 f1Q Qa8 Qg2+ Ke1 Nh7 Qb4 f2+ Kd2 f1R+ Be2 Bb6 Nc4 R1f4 Rf1 h1N Nb2 h2 Ke1 Nf2 Bd2 h1N Nf5+ Kh2 Bc3 Ng3 Rd1 c1R Ne7 a1B Nd3 Nge4 Bf3 Neg5 Bd5 Qe8 d8Q Be6 Qa7 Rc2 Rd2 Bf7 Bf3 Bd5 e6 Bb2 Qda8 Qb8 Qa2 Nd8 Qab3 c6 Qa1 Ba5 Bg7 Rcc5 Bc3 Qg3 Bh1 Qg2 Bf6 Be5 Bg7 Bec7 Bc3 Nd1 Rff2 Bcb6 Rf1 Rg4 Rf3 Nf2 Rf7 Rf4
1Q3Q2/1Pp1BN2/bn3bB1/2r1R2P/1q2bPR1/rRrk2qq/bK2N3/3rn3 w - - 0 1 illegal: No proof kernel
N2R4/1pB1Pk2/1bb2B2/2K1Pbr1/1P5q/n1nqRbQn/nrN3RQ/5q2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 e5 fxe5 c5 Bg2 cxd4 Bd5 a4 Bb3 axb3 Kf2 g5 h4 d5 e4 f5 c4 g3+ Ke2 g4 Kd3 b2 a4 g2 e6 g3 e7 f4 a5 f3 h5 f2 a6 f1B+ Ne2 g1Q a7 g2 h6 Nc6 h7 Kf7 c5 Bf5 Qc2 Na5 Qc3 Nc4 Nd2 b1N Rh6 Nca3 Qb2 Nf6 Rh2 Nc3 Qc2 Na2 Rh4 Rg8 h8B Rg5 Nc4 Qh2 Qd2 g1N Rg4 Bg2 Nb6 Nh3 c6 Bg7 c7 Qf4 Rg3 Qh4 c8R Qd7 Qb2 Qd6 Kd2 d3 Ke3 d2 Kd4 d1B Rd8 Bf3 Rg4 Ba4 Rg2 Bc6 Bf4 Qd7 Kc5 d4 Qd2 d3 Bc7 Nd5 Re1 Ndc3 Nd4 Be5 Bf6 Rc8 Qb2 d2 a8Q d1Q Re3 Qf1 Nc2 Qdd3 Qb8 Bh2 Na8 Bg1 Bh2 Bf2 Qf4 Bg3 Qg4 Bc7 Bf4 Ba5 Qg3 Rc7 B4e5 Rd7 Bc7 Rd4 e5 Re4 Qc1 Rd4 Qd2 Re4 Re1 Re2 Qdf4 Rf2 Re3 Rd2 Qh2 Re2 Qfg3 Rf2 Na1 Rb2 Nc2 Bb6+
Rn5b/p2bK1QN/R3P3/Brr2N2/P4Bqb/4nn1P/3nr1k1/1qRrQ3 w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 g6 f3 Bg2 fxg2 Bd2 hxg6 Be3 g5 Bc1 g4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 b5 f4 g5 a4 d3 c4 g3 h3 g4 c6 d2 c5 b4 e3 b3 c7 b2 c6 Nf6+ Kd4 d5 Qe1 d1N Nd2 b1Q Ra2 Ne4 Ndf3 Qd7 Rb2 Rh5 Rb6 Be7 Ne2 g1B Ng5 g2 Nh7 g3 Ra6 Bh4 Bd2 Qe6 Ba5 Bd7 c8Q Nd2 Kc5 Ke4 c7 Kf3 f5 d4 e4 Ne3 e5 d3 f6 Qg4 Kd6 Bf2 f7 g1N f8B g2 e6 Rb5 Ng3 Bf6 Bb6 Bh8 Nf5 Bh4 Bh6 Rc5 Ba5 Rb5 Qc1 Kf2 Qb2 Nf3 Qg7 g1R Bf4 Rg2 Rc1 Rh2 Qb7 Kg2 c8R Kf2 Qf8 Nc6 Qb8 Nb3 Qg8 d2 Qc7 d1R+ Nd4 Kf1 Qg7 Re2 Re8 Rc8 Qb7 Nbd2 Nf5 Nh2 Rf8 Rc7 Ra8 Nb8 Qh1+ Kf2 Qe1+ Kg2 Ne7 Nhf3 Nf5 Ng5 Ke7 Rcc5 Kf8 Ngf3 Kf7 Ng5+ Ke7 Ngf3+
N4b2/2nr2qn/1N2R3/8/pB4kP/PQKnBn1R/1n2bbP1/1rb2QnR w - - 0 1 illegal: No proof kernel
1n3B1n/nr1pQr2/2P1R1N1/1Rb5/1n1PQqB1/3nN2K/r3nPRb/3r3k w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 c5 Rh3 cxb4 Rh1 g5 a4 gxh4 Rh2 b5 Ke2 b3 Ke1 b4 Rh3 Ba6 Rh1 Bb5 axb5 Qc7 Ba3 Qc8 Bc1 Qd8 c4 Kf7 g4 Kf6 d3 Ke5 c5 h5 g5 a5 b6 b2 c6 a4 g6 e3 b7 Kf4 g7 e5 Bh3 a3 Kf1 a2 Kg2 b3 Qe1 e4 Qb4 Ne7 g8Q Ng6 Nd2 b1N Qa4 b2 Kh2 e2 Qa7 e1N Ndf3+ e3 Qa6 Qg5 Qa7 Na3 Nd4 b1R Qa5 Nec2 Qd2 Nb4 Nb3 Bc5 Qe6 Rh7 Qd1 Nh8 Qd5 Rf7 Bg4 h3 Nd4 h4 Q1b3 Nb5 Be2 Na7 Bb2 Qh6 Bh5 e2 Ba3 e1N Bg4 Rb2 Rd1 a1B Ngf3 Rb1 Nc2 Be5 d4 Ned3 Rhg1 Bed6 Kh1 h2 Kg2 h1N Kh3 Ng3 Rde1 Ne2 Ne5 Qg5 Rg2 Qf5 Kh2 h3 Ne3 Rb2 Qe6 Ke4 Qe7 Qf4+ Rg3 Bc7 Ng6+ Be5 Qc2 Rb1 Kh1 h2 Kg2 Rb2 Qb1 h1R Qc2 Rg1+ Kh3 Rf1 Rg2 Ra2 Bf5+ Kf3 Qb1 Qg5 Be6 Bh2 Bf5 Qf4 Qc2 N8a6 b8R Rh1 Rb7 Rb8 Rb5 Rb7 Nd5 Nc3 Re6 Nb8 Ne3 Rf1 Qb3 Rd1 Qd5+ Ke2 Bg4+ Ke1 Qe4 Ne2 Nd5 Kf1 Bc1 Qf6 Bh6 Qf4 Bf8 Bg3 Rh2 Kg1 Rg2+ Kh1 Ne3 Bh2
3NK2b/bn5k/6r1/P2N1Qqb/PB1p1b2/2rB1b2/N1bRnP2/Q2b1Rb1 w - - 0 1 illegal: No proof kernel
1nbq1R2/k1p1n1Pn/2P4B/n3q1R1/qb3KP1/2nBNQn1/r2N2b1/4B1Q1 w - - 0 1 legal: proof: e4 b5 b4 a5 g4 axb4 f4 g5 e5 gxf4 e6 Ra3 g5 Rg3 hxg3 dxe6 g4 e5 Rh2 e4 Rh6 Bg7 Rh1 Bf8 Kf2 Kd7 c4 Kc6 a4 Kb6 d4 e5 c5+ Ka7 c6 h5 a5 f5 g6 b3 d5 e3+ Kf3 e2 d6 e1Q d7 b2 a6 e4+ Kg2 f3+ Kh3 b4 g7 b3 Ne2 f4 Ra4 e3 Rh2 h4 Bg2 f2 Bd2 f1N Bf3 Ng3 Bb4 Ne7 Bh1 f3 Ra1 f2 Qd3 f1N Nf4 e2 Qc3 Ne3 Rf2 Nc4 Nd5 Na5 Nd2 b1Q Ne3 b2 Be4 Qa2 Bd3 b1N Rf5 Qa3 Rg5 Qa4 Qf6 Rg8 Qf3 Nc3 Kg2 h3+ Kh2 Kb6 a7 Rh8 Ra3 Qa1 a8Q e1N Kg1 h2+ Kf2 h1B Ra2 Qe8 d8B Bg2 Rb2 Rh2 Rc2 Na2 Rc4 Qe5 Rf4 Nc3 Rf7 Ng6 Bf6 Bc5 Rf8 Qd8 Be7 Qf6 Bd6 Ne7 Bf4 Qe5 Rgf5 Nc2 Bh6 Nd4 Rh5 Ne6 Rg5 Na2 Bc3 Bb4 Qa6+ Kc5 Qc4+ Kb6 Qb3 Ka7 Qb1 Nf4 Qg1 Nfh5 Ne4 Nf6 Be1 Nh7 Nd2 Qeb5 Nd5 Nc3 Ke3 Bf1 Kf4+ Rf2 Ke3 Bg2 Kf4 Qc5 Ne3 Qcb5 Ndf1 Ra2 Nd2 Qe5+
1b4R1/N4qR1/n3P2q/3N1qrP/2Q2Qrk/3Rp1r1/BK1nP2r/n1q2rB1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 h5 f3 hxg4 Be3 e5 Bg5 b6 Nh3 e4 Ng1 Bb7 Bd2 e3 Bc1 Be4 fxe4 Ra7 Nd2 Ra4 Nb1 Ra8 c4 Ke7 h4 Kf6 a4 g5 a5 d5 a6 d3 c5 d4 a7 g3 c6 g2 c7 g4 c8Q b3 Nc3 g3 Nf3 g1R Ra3 b2 Qc4 b1Q Rh2 b5 Qc6+ Bd6 Qc7 b4 Qc6 b3 Qc5 g2 Qc6 b2 Rh1 Ne7 Rh2 Nd5 Qa6 Qc7 Qc4 Nb4 Ra4 N8a6 Qc6 Rag8 a8R Rg4 Qd2 Nc2+ Kd1 Na1 e5+ Kf5 Qe1 d2 e6 f6 Ra2 Qf7 Ra3 Bb8 Nd5 Qe4 Qg3 b1N Qf4+ Kg6 Rc3 Kh5 Qc4 f5 Rd3 Rg5 Qe5 f4 Ba3 Qef5 Bd6 Rh6 Qf6 Rh7 Ne5 f3 Nc6 f2 Na7 Rg3 Qe5 Kg4 Be7 Rh5 Qd6 Rh1 Bf6 g1R Rg2 Rg5 Be5 Rh2 h5 Kh4 Qf8 Q5h7 Qh6 Qhg7 Qf6 Qh6 Qf4+ R3g4 Rg3 Rgg2 Rf3 Rg3 Bg2 Nb3 Kc2 f1Q Rf2 d1R Kb2 Na1 Be4 Qh3 Rg2 Rf1 Rg1 Nd2 Bh7 Bc7 Rg8 Bb8 Nb5 Rgf3 Qc8 Rg6 Qc1 Rh1 Bd6 Ne4 Ra3 d3 Nbc7 d2 Qe5 d1Q Qc4 Qg2 Nb5 Qf2 Na7 Rg2 Qf5 Rg7 Bh2 Rf4 Qe5 Nd2 Bb1 Re4 Qec7 Q2f5 Rd3 R2g6 Rg2 Qe1 Bg1 Rh2 Ba2 Ref4 Rf2 Rgg2 Rf3 R7g6 Rg3 Qd1 Rg5 Rfg4 Qd6 Rg3 Qdf4 Rg7 Rg6 Qe1 Rf6 Rg5 Rfg6 Qd1 R6g7 Qc1+
1b3k1q/q1r2P1q/1N1p1qr1/2bP1B2/1BKn1rR1/1r1Pq3/1R3Q1Q/3RN2b w - - 0 1 legal: proof: e4 g5 b4 a5 h4 gxh4 e5 axb4 e6 Nc6 d3 Nd4 c3 fxe6 cxd4 e5 Bd2 e4 Bh6 Ra4 Bc1 Ra8 Ke2 e5 a4 h5 g4 b5 f4 c5 f5 h3 a5 b3 g5 h4 g6 b2 g7 c4 a6 b4 f6 c3 a7 e3 Nd2 b1Q Ngf3 c2 Rh2 e4 Bb2 c1R Nb3 Qa2 Qc2 Ne7 g8R Nf5 Qc4 Rh6 Ne5 Bb7 Nc6 Rg6 Rh1 h2 Ne7 h3 Qa6 Rc7 Nd2 b3 Ba3 b2 Qa5 b1R Qa6 Rb3 Rg1 h1Q Rg4 h2 Qb6 Rb8 Ke1 e2 a8Q Bd5 Qc5 R8b4 Nc8 Qf3 Qb7 h1Q Rd1 Qh7 Bh3 Kf7 Qca7 Bc5 Nb6 d6 Rg7+ Kf8 f7 Qh1+ Kf2 Qf6 Nf3 Qa1 Qc6 e1B+ Ke2 Bf2 Kd2 Ra4 Bb4 e3+ Kc2 e2 Ne1 Bf3 d5 Nd4+ Kd2 Qh8 Rg2 Qa3 Bf5 Q1h7 Rh2 Bh1 Qb5 Rh6 Rg4 Rg6 Qc4 Ne6 Qf4 Nd4 Bc3 Rc4 Bb4 Bg1 Qf2 Qa6 Ke3 Qb7 Qa2 Qa7 Nf3 e1Q+ Qe2 Qf1 Ne1 Qfh3+ Kd2 Nb5 Qe5 Rf4 Qb2 Nd4 Qa2 Rb1 Kc3 Rb3+ Kc4 Qe3 Qae2 Qg3 Qe5 Qe3 Rhg2 Re4 Qeg3 Rf4 Qh2 Ne2+ Be4 Qeh3 Qd4 Qb7 Na8 Ba7+ Qc5 Bb8 Nb6 Bd4 Bf5 Qa7 Kb5 Be3 Qc2 Bc5 Qd2 Nd4+ Kc4 Rc8 Qe3 Rc7 Rb2 Qg3 Qef2 Qe3
1Rq5/3qkPnQ/1N3q1q/BP2N3/1rp2qr1/nbP1rR1B/1Qr5/n2B1K2 w - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 f5 Ke2 b5 Ke1 bxa4 h4 g5 Bd3 Bh6 Bc4 fxg4 Be2 g3 Ba6 g4 Bf1 Bg5 hxg5 Ba6 Bg2 Bb7 Bf1 Bc8 b4 a5 d4 h5 f4 c5 f5 e5 b5 a3 g6 a4 f6 h4 f7+ Ke7 g7 g2 d5 g3 Bd2 e3 Bc4 e4 Qf3 e2 Qd3 a2 Qb3 h3 Qa3 h2 Nf3 Nc6 Qb2 a3 Rg1 h1Q Bg5+ Nf6 g8B Ra4 Nfd2 Nb4 Bd3 Qh6 Qc3 Qd7 Rh1 g1Q+ Nf1 g2 Qb2 Qd4 Nc3 g1R Bh7 Rg4 Bd2 Ne8 Bf5 Ng7 Ne3 c4 Kf2 e1R Be2 Re8 Rc1 a1N Bd1 Re2+ Kf1 a2 Rh3 Qe5 Rf3 Qef4 d6+ Kd8 Ng2 e3 Ne1 Reg2 Nd3 e2+ Ke1 Re3 Nd5 Bb7 Nb6 Be4 Ne5 Qc8 d7 Ke7 Bc3 Rh2 Bd4 Bd3 c3 Bc2 Be6 Bb3 Rc2 Qhf6 Rd2 Q6h6 Na8 Rhg2 Bb6 Rf2 Ba5 Rh2 Rd5 Nbc2+ Kd2 Na3 Ke1 Rb4 Nb6 Rgg2 Bh3 Rg4 Rc5 Qff6 Rc7 Rf2 Rb7 Qff4 Rb8 Rh2 Kd2 e1Q+ Kc1 Qeh4 d8Q+ Ke6 Qh8 Ke7 Qh7 Qh4f6 Be2 Rhg2 Kd2 Rh2 Ke1 Rhg2 Kf1 Rh2 Bd1 Rc2 Nbd7 Rc1 Kf2 N1c2 Be2 a1Q Nb6 Qa2 Bd1 Na1 Qe2 Qd2 Kf1 Qdd7 Qb2 Rc2
2K2qq1/1n5b/kNQ1pP1q/n1R1N1Qn/1q4b1/1nr1b3/PR2P1Q1/q3B2B w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Bg2 fxg4 Bf1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qb6 Bb2 Qa5 Bc1 Qd8 Kd2 h5 Kd3 d5 c4 Kd7 f4 Kc6 f5 Kb7 g6 g2 g7 b3 c5 b2 c6+ Ka6 c7 g3 Bf4 b4 Rh2 b3 Nf3 g1N Rg2 h4 Nfd2 h3 Nc4 h2 Nca3 h1Q Bc1 Nf6 g8Q Qh6 Nc3 b1B+ Qc2 b2 Qg7 Nf3 Qg6 Nd2 Nab5 Nc6 Qh5 Nb3 Rh2 g2 Qg6 g1Q Rh1 Nh5 f6 Bg4 Na4 e6 Nb6 Bc5 Na7 Qdf8 Bg2 Nd8 Bd2 Rh7 c8Q+ Rb7 Qd7 Rc7 Qg5 Na5 Qe8 Qe1 Bf4 Qb4 Qeg6 Qg8 Nc6 Qgf8 Nc8 Bb6 Ne5 Rc3+ Kd2 d3 Rc1 d4 Bg3 Ba7 Nb6 Qg8 Qa4 Bc2 Bh1 b1N+ Ke1 d2+ Kf2 d1Q Qc6 d3 Ke3 Qhf8 Be1 Nd2 Rab1 Ndb3 Rb2 Bb1 Qge4 Qc2 Qg2 d2+ Kf2 Qcg6 Rcc2 Rc5 Ke3 d1Q Rc3 Qgh6 Rc4 Ng7 Kf4 Be4 Rc3 Qa1 Rc1 Rc3 Rcc2 Rg3 Rc5 Bd3+ Nec4 Bh7 Ke5 Qe8 Kd6 Qef8+ Kd7 Rc3 Ne5 Nh5 Nd3 Bb8 Kc8 Bf4 Ne5 Bc1 Qf1 Be3 Qfg2 Ndb7+
B2kr3/1rp4R/B1qB1bP1/bqb4r/1brNn3/2PqQQP1/b1R1N3/5K2 w - - 0 1 illegal: No proof kernel
3rQQrK/Bb1q2R1/r5Bn/2N1p3/r1qR1Pbk/Pqq1PQ2/8/bbN5 w - - 0 1 illegal: No possible last move
2N3R1/5R2/2N1pBbb/3q3n/1pbKPknr/PN1P2q1/2Q4q/rrnQ1B2 w - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 c4 f6 g5 fxg5 cxd5 gxh4 Qb3 h3 Qc2 Bd7 Qd1 Bc8 f4 Kd7 Kf2 Kd6 Ke3 b5 f5 Ke5 d6 c5 f6 h5 d7 g5 f7 b3 d3 g4 Qe1 g3 Nd2 b4 Ne4 e6 Bd2 g2 Qf2 h4 Ng3 h2 Nh5 c4 Rd1 h3 Ra1 c3 Rb1 b2 Ng3 c2 Qf3 c1N Nf5 Ba6 Nd6 Nf6 Nc8 Rh4 Qg4 Qa5 d8N Nc6 Qf3 Bg7 f8Q Qd5 Qc5 Nh5 Qc2 Bc4 Ra1 b1R Be1 Rd4 Bh4 Bh6+ Bg5 Rf4 Bh4 Kf5 Bf6 Ne5 Nc6 Ra7 Qd1 Ra8 Qf2 Kg4 Nf3 g1Q Nd2 Qg3+ Nf3 Kf5 Rg1 h1B Qg2 h2 Qf2 Qh4 Nd2 Be4 Nb3 h1Q Rg8 Q1h2 Qg2 Qb5 Kd4 Q4g3 e3 Rh4 Qgc2 Ng4 Rf8 Kg6 Rf7 Bf5 e4 Ra6 Be5 Kg5 Bh8 Bg6 Bf6+ Kf4 a3 Rb6 Ne5 Rc6 Ra2 Rc7 Nc6 Ra1 N8e7 Bh7 Bh8+ Ngf6 Bg7 Qgh3 Ne5 Bd5 Qg2 Rc2 Nc8 Rb2 Qge2 Bc4 Nc6 Rbb1 Rd2 Qg5 Qc2 Qgf5 Qed1 Qf3 Rg2 Qa5 Rg5 Qfg3 Bh8 Qf5 Bg7 Ng4 Bf6 Qa5 Rgg7 Bg6 Rg8 Qd5+
r3b2q/1RP3bQ/bQn2B2/3r4/1K1p3P/1N2nk1q/BRp2Pq1/3Rn1rN w - - 0 1 illegal: No proof kernel
1q1n4/p1r1BR2/1kNb2b1/brp2n2/1PP3Qq/1QN1QP1n/3K1qB1/2R2r2 w - - 0 1 legal: proof: g4 d5 h4 b5 e4 dxe4 a4 f6 g5 fxg5 axb5 gxh4 Qf3 h3 Qh5+ Kd7 Qd1 Ke8 d4 Kd7 c4 c5 b6 Kc6 b3 e5 b7 g5 f3 h5 d5+ Kb6 d6 e3 d7 h2 Nd2 e2 Ra2 e4 Rc2 h4 Rc3 h3 Rd3 g4 Bb2 g3 Qc1 g2 Bg7 Bd6 Bd4 Rh7 Be3 Nh6 Rd4 Nf5 Nb1 Nc6 Qb2 Rb8 Kd2 e1R Ne2 g1N Bg2 Rf1 Bg5 e3+ Kd3 Qf8 d8Q+ Rc7 Qe8 Nd8 Rf4 Qg8 Nd4 e2 Kc2 e1B Qe3 Ba5 b4 Be6 Qba3 Bf7 Qab3 Bg6 Be7 Qh8 Kd3 Qh4 Nc3 Qf2 Ne4 Ne2 Rg1 h1Q Kd2 Qh2 Nc3 Qhg3 Nc6 h2 Qd3 h1Q Qe3 Qhh4 Rh1 Rbc8 b8Q+ Rb7 Qa8 Rcc7 Qc8 Ng1+ Ne2 Nh6 Rf7 Nh3 Qg4 Nf5 Rg1 Ka6 Rh1 Rb5 Rg1 Kb6 Rh1 Qg1 Nc3 Q1f2+ Qe2 Rc1 Qb1 Rc8 Qa1 Bb8 Qa2 Qc7 Rd1 Qb7 Re1 Bd6 Qb3 Rc7 Rh1 Qb8 Rd1 Qf1 Qe3 Rb1 Rc1 Qg1 Rc2 Rf1 Rc1 Qgf2+
2b2NrB/1nn1Q3/1N6/bK3r1p/1Q2R1QP/1np1RrP1/Pb3n2/qB4kn w - - 0 1 legal: proof: d4 e5 dxe5 a5 f4 g5 b4 gxf4 c3 axb4 Be3 bxc3 Bd2 Ra6 Bc1 Ra8 e4 Ke7 Ke2 Ke6 Kd3 c5 Kc4 d5+ Kb5 h5 h4 f5 Qa4 c4 Qa3 f3 Qa4 f4 Be2 d4 Rh2 d3 Qa7 f2 Qa4 f1N Rh1 f3 Qa5 c2 Be3 c1B Nc3 d2 Bh6 d1N Qa4 f2 Qa7 Nd7 Qd4 Bb4 Be3 Ba5 Qd2 Qf6 Qd3 Ne7 Nd5 Nc5 Qb3 Rg8 Bd4 Bb2 Nb6 Nd5 Bd3 Ng3 Nf3 f1R Rh3 Nf2 Bb1 Ngh1 Qb4 Rg5 Rg3 Rf5 Rg4 c3 g3 Qg6 Rf4 Qg5 Rg4 Qc1 Rf4 Ke7 e6 Kd6 Ng5 Rb8 Be3 Ke5 e7 Qe1 Nh7 Ra8 Na4 b6 Rf3 Nb7 Nf8 Qd1 Bh6 Qc1 Re3 Rf3 Qd6+ Kd4 e8Q Qe1 e5 Rb8 Kc6 b5 e6 b4 e7 b3 Qeg6 Rf5 Nb6 Ra8 Rf3 Qc1 Rf4+ Ke3 Re4+ Kf3 e8Q Kg2 Bg5 Kg1 Bf6 Ng4 Bd3 Ra6 Qee6 R1f3 Bc2 Ngf2 Kb5 Ba3 Qee7 b2 Nc4 b1N Qg4 Nd2 Qb4 Bb2 Bh8 Rg6 Nb6 Rg8 Bd3 Qf1 Rae1 Nb3 R1e3 Qa1 Bb1 Nc7+
3R3K/rn1r4/1rnb1R2/P2PNQ2/2b1b3/B4np1/1pBNP1bQ/k2bN1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 a4 c5 h4 f5 h5 g5 h6 b5 a5 b3 h7 g3+ Kf3 g4+ Kg2 b2 Rh6+ Nf6 Be3 c4 Nf3 c3 Qa4 b4 Bd2 c2 Ra2 c1R Qa3 Rd1 Be1 Ra7 Ra1 Nc6 Ng1 f3+ Kh1 f2 Kg2 f4 Qf3 b3 Qc3 f3+ Kh1 g2+ Kh2 Be6 Kg3 Nd7 Kf4 g3 Qd2 Qb6 Kg5 Nc5 Kg6 Nb7 Qc2 Rd3 Nd2 b1B Ra4 b2 Rb4 Rb3 Qf5 Bc2 Ra4 Be7 Kg7 Rd8 h8Q Rd7 Rf6 Bd1 Qh2 Qc5 Ra3 Rb6 Rd3 Bf8+ Kh8 Qc1 Nh3 g1N Bg2 f1B Ng5 f2 Be4 Bg2 Ngf3 f1B Bf2 Be7 Ne1 Nf3 Bg1 Bh1 Be3 Bfg2 Bh6 Kc7 Bf8 Bd6 Be7 Bf4 Ba3 Bd6 Nc4 Qe3 Rd2 Qg1 Bc2 Nbd8 Rd3 Kb7 Nd2 Ka6 Qg6 Kb5 Qf5 Be5 d6 Bc4 d5 Nb7 Re3 Bf4 Re8 Be5 Rd8 Bf4 Bb1 Ka4 Be4 Rc7 d7 Bd6 Nf1 Kb3 Nd2+ Ka2 Bc2 Nc5 Rdf8 Rcb7 d8N Ka1 Nf7 Rd7 Ne5 Nb7 Rd8 Nfd4 Rh6 Be4 Re6 Bhg2 Rf6 Nf3
N1Q1QrBK/R2n1rp1/5b2/1n1n3p/3P4/Q1PqN1b1/Rr1P2r1/1kB1rb2 w - - 0 1 illegal: No proof kernel
1b1nK1Q1/1q3PRr/2NpB2k/1R2Q1r1/r2BP2p/r1P1n3/2b2n1b/2N2rQ1 w - - 0 1 illegal: No proof kernel
BNR3bQ/n2P1r1Q/3b2Kp/2P1Br1N/b4b2/n1p5/P2knB2/1b1r1R1q w - - 0 1 illegal: No proof kernel
1N2b2r/bBK1b2q/1n2Pbp1/pk3rq1/Rb1nP3/1N3RQ1/3B1BPQ/1n6 w - - 0 1 legal: proof: f4 d5 c4 dxc4 h4 e5 fxe5 b5 a4 bxa4 h5 Qd7 h6 Qh3 Rh2 Qxh6 Rh1 Qh2 Kf2 Kd7 Kf3 Kc6 Ke4 f5+ Kd4 a5 e4 h5 b4 c3 e6 c2 d3 a3 Qf3 f4 Ke5 a2 d4 h4 Be3 c1B Ne2 g6 d5+ Kb5 d6 c5 d7 h3 d8B c4 Bh4 c3 Bg1 c2 Bc5 Nc6+ Kd5 Be3 Bd6 c1B Qf2 f3 Qg1 f2 Bdg3 Ba7 Bf4 Nge7+ Kd6 Bd7 Nd2 Be8 Nb3 Nd4 Kc7 Qg3 Qh2 Qg5 Bd2 Ba3 Qg3 h2 Rg1 Ka4 b5 h1Q b6 Kb5 b7 Nc8 b8Q+ Nb6 Qh2 Bab4 Qg3 Nf3 Qh2 Bfe7 Ned4+ Ka4 Be2 f1N Nc6 Nd4 Ba6 Rf8 Bhe1 Rf5 Bb7 Kb5 Qg3 Qh7 Bf2 Bf7 Qh8 Be8 Rh1 Rd8 Rh4 Ra8 Rf4 Rb8 Rf3 Rd8 Rd1 a1B Nb8 Bb2 Ra1 B2c3 Bde1 Nd2 Ra4 Nb1 Bd2 Nc6 Qf8 Bcf6 Qh6 Nd4 Qhh2 Bd7 Na6 Rh8 Nb8 Be8
1b1rNK1Q/2nRR1n1/3ppn2/P3P3/2nqPb2/2qB1k2/1Q3n2/1Q1b1rBN w - - 0 1 legal: proof: d4 h5 b4 c5 e4 cxd4 g4 hxg4 b5 Qc7 f4 Qe5 b6 axb6 fxe5 b5 Bg2 b4 Bh3 Ra7 Bf1 Ra8 Ke2 g5 Kd3 b5 a4 f5 h4 Kf7 c4 Kg6 a5 Kh5 c5 f4 c6 d6 c7 b3 Be3 b4 Kc4 d3 Kd5 d2 Bg2 b2 Bb6 f3 Ne2 b3 Bf1 g3 Na3 Kg4 h5 b1Q h6 b2 h7 g2 Be3 g1Q Qe1 d1N Bf4 f2 Bg2 f1N Bh3+ Kf3 Nc3 g4 Qh4 g3 Rh2 g2 Nab5 Na6 Qe1 Qc2 Ne2 b1N Be3 Na3 Rb1 Nc4 Ng3 Bh6 Nh1 Bg4 c8Q Qc3 Nc7 Nf2 Qb7 Rd8 Qb2 Ng3 Ne8 Nf5 Ke6 Nf6 Kf7 e6 Ba7 Rg8 h8Q Bf4 Bd4 Rg5 Kf8 Ng7 Qec1 Qd1 Bb6 g1B Bf1 Qa4 Bd3 Rf5 Rh7 Nc7 Qcc2 Qab4 Rf1 Qd4 Qcb1 Qbc3 Ba7 Ke3 Rc1 Bd1 Rc2 Kf3 Bc5 Ngh5 Re7 Ng7 Ba7 N2g4 Rh2 Nf2 Rh7 Nh3 Bb8 Qb6 Qd2 Rg5 Qb4 Ngh5 Qb1 Bc5 Rd7 Rg1 Qbc1 Rf1 Rhe7 Ng7 Ba7 Bf2 Qa2 Qc5 Qcb2 Qd5 Bc5 Bg1 Bb4 Ba7 Bc5 Bb8 Bg1 Qdd4 Qab1 Nf2
r1qQnb2/bkbnr1QR/2p1P2N/1P1Q4/4KB1P/2pRq3/2bb2BN/7n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 a5 b4 g5 d4 f5 h4 c6 d5 Kc7 b6+ Kb7 b5 f3 Ke3 a4 d6 f2 d7 g3 e5 f4+ Kf3 g2 Qd5 a3 Be2 f1N Bd3 a2 Ne2 g1B Qc5 g4+ Ke4 g3 Na3 g2 Nc3 f3 Rh3 f2 Ncb1 Bh2 Bf4 g1B Nc2 Rh7 Nd4 Re7 Nf5 c3 Nh6 Nf6+ Kd4 Bg3 Be4 Ne8 Qd5 Qc7 d8Q Bf5 e6 Nd7 Bh1 Bc2 Bg2 Qc8 Nd2 B3h2 Rd3 Ng3 Rd1 a1B Nf1 Nh1 Ke4 Bb2 Ra1 Bg3 Nh2 f1Q Rd1 Qf2 Rf1 Rg7 Qf6 Re7 Qg7 Ba3 Rd1 Bd6 Ra1 Bc7 Ra7+ Kb8 b7 Qc5 Ra1 Be1 Rd1 Ka7 Ra1+ Kb6 Ra7 Bd2 b8Q+ Qb7 Qd8 Qc8 Ra1 Kb7 Rf1 Qb6 Rf3 Bd4 Rg3 Bc5 Rg5 Bce3 Rh5 Qc5 Nf5 Bg1 Rh7 Qf2 Nh6 Qg3 Bg5 Ba7 Bf4 Qe3+
Bn2Rr2/2Q1rb2/1Pr5/q2kr2b/2r3BP/q1p1RK1p/4NBQP/4n1Nq w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 f5 b5 g3 bxa4 f6 h4 Kf2 h3 Nf3 exf6 Ke1 f5 Ng1 f4 Kf2 Be7 Ke1 Bh4 gxh4 Qd7 Qb3 Qe7 Qd1 Qd8 Kf2 Ke7 e4 Ke6 b4 f5 d4 a5 b5 c5 e5 g5 Bd3 a3 Qh5 a4 Nf3 g4 Be2 c3 Qg6+ Nf6 Ra2 c2 Qh7 c4 Qa7 g3+ Kg1 g2 Kf2 g1R Bd3 Re8 Qh7 Re7 Rb2 a2 Qg6 a1Q Ng5+ Kd5 e6 f3 Qh7 a3 Qh6 f4 Qh5 a2 Bf5 Nh7 Qg6 Rg4 Re1 Qa5 Be3 c1R b6 Bd7 Rb4 Be8 Rb3 Bf7 Qg8 Raa7 Rc3 Re8 e7 Qb2+ Re2 a1Q Rb3 Rf8 e8B Re7 Bed7 Qba3 Bc6+ Kd6 d5 Re5 Ne6 Ng5 Ba8 Rc2 Nd2 Qh1 Rd3 Re8 Nd4 R8e7 Nf1 Kc5 d6 Rc3 d7 Kd6 Ke1 f2+ Kd2 f3 d8Q+ Kc5 Ng3 f1B Bf2 Rf4 Re1 Be2 Bg4 Rf6 Qg7 Rc6 Qc7 Kd5 Qg8 Bd1 Re4 Rc2+ Ke3 Rc1 Nge2 Rc3 Be1 f2 Ng1 f1R Bf2 Nf3 Kf4 Ne1 Rde3 Bf3 Nde2 Rc1 Bc8 Bh5 Qg2 c3 Kg3 Rd1 Bg4 Rd4 Kf4 Nc2 Kf3 Rc4 Rf4 Bhg6 Rf6 Bh5 Re6 Ne1+ Kg3+ Nf3 Bb7 Rd7 Re8 Bg8 Ba8 Rde7 Be1 Rf2 Re4 Be6 Kf4 Rf1 Bg3 Ne1+ Ke3 Rf8 Bf2 Bef7 Kf4 Nc2 Kf3 Rb4 Re3 Rd4 Rc8 Rc4 Re8 Ne1+
B1Q5/Qb4Bq/1P2RqP1/1bp3k1/PN2Kn1n/rb1N4/r2bbp2/Q2R2n1 w - - 0 1 illegal: No proof kernel
B1N3q1/5bb1/1pQ4P/bP2B1Rb/k1n1p2r/2QR3P/n3qB1K/1q1r1b1N w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 c5 b5 cxd4 Qd2 Nh6 Qc3 Ng8 Qb4 axb4 c4 g5 f4 d5 Kf2 Kd7 Kg3 e5 a4 e3 f5 g4 c5 d3 a5 d2 a6 d1Q f6 e4 c6+ Kd6 f7 Kc5 a7 d4 h3 e2 c7 e1B+ Kh2 b6 Ra6 b3 Ra1 Kb4 Bd3 b2 Be2 d3 Ra3 d2 Ra1 Be6 c8Q Na6 Qc6 Ne7 Nc3 b1B Bb2 Nf5 Ra3 Nd6 Bc4 Bg7 f8B Bf7 Nge2 Bd3 Ng3 Bf1 Rg1 Qe2+ Rg2 d1B Nh1 Qe8 Bd5 Rd8 a8Q Rh6 Be7 Qg8 Bh4 Nc4 Bf2 Rh7 Rb3+ Ka5 Qac8 Nb4 Rg3 Na2 Rd3 Rd6 Ra3+ Kb4 Ra7 Kb3 Re7 Kb4 Re5 Kb3 Rg5 g3+ Kg1 g2 Kh2 Rf6 Ba1 Rf4 h6 Rh4 Q6e8 Bd2 Ba8 Ka3 Nd5+ Ka4 Qec6 Ba5 Ne7 Rh8 Qg4 Rh7 Nc8 Rh8 Kg3 Rh7 Qf3 g1Q+ Qg2 Rh8 Be5 Qb2 Rd5 Bfe2 Bc3 Qh7 Be3 Rd8 Be5 Qg8 Rd2 Qf1 Qf3 Qb1 Kh2 Qe1 Qg3 Bf1 Bf2 Bdh5 Qc3 Qe2 Rd5 Rd6 Rd4 Re6 Rd7 Rd6 Rd8 Rd2 Rd3 Rd1
R1N1n2q/1q1b3P/p2K2Q1/1P2QQR1/2P4k/2B1pr2/1qnn2nb/r2B1Nn1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kg6 c4 Kh5 f4 g5 b4 d5 f5 e5 b6 e3+ Kd3 e4+ Kc2 d3+ Kc3 d4+ Kb3 e2 b5 e1N f6 e3 f7 d2 b7 d3 Nc3 Nf6 Be2 Nc6 b8Q Nd4+ Ka4 Bd7 Bf3 Ng2 Qe1 Ne8 Nh3 Bd6 f8Q Nc2 Ne2 d1Q Rg1 d2 Bb2 Qc1 Qg3 d1Q Bc3 Qd5 Nf2 Qb2 Ne4 Qb7 Qf5 Rf8 Ra2 Bf4 Nd6 Qf6 Ra3 Qh8 Nc8 Bd6 Qge5 Bc7 Qg7 Bh2 Qbe5 Rf7 Nc1 Rf6 Bd1 Rf8 Ne2 g3 Qgf6 Rf7 Q5g6+ Kg4 h5 Kh4 Qfe6 g4 h6 Rf3 h7 Nf4 Rh1 g2 Ng3 g1N Nf1 g3 Qe6f5 g2 Ra2 Rg3 Ra3 Nf3 Rg1 Nd2 Ka5 Qd5 Ka6 Qf7 Kb7 Rf3 Rh1 g1N Ra5 Nge2 Rg1 Qfg7 Rg5 Ng1 Ra6 Ng2 Nb6 Be6+ Kc6 Qb7+ Kc5 Rd8 Nc8 Bd7 Rf6 a6 Rb6 Qe4 Rb8 Qb7 Ra8 Nb1 Qgf7 Be6 Be2 Rd1 Q7g6 Rc1 Bd1 Bd7 Rb8 Nd2 Ra8 Qb8 Kd5 Ra1 Kc5 Qc7+ Kd5 Qb7+ Kc5 Ng7 Kd6 Ne8+
n4b2/3nq1P1/qQ1pBRBP/nNQ1pb1N/1rr1P2k/R7/3r3K/B1n4n w - - 0 1 legal: proof: f4 b5 g4 g5 d4 c5 a4 cxd4 axb5 gxf4 g5 h5 Qd3 Ba6 Qf5 Bc8 Qg4 hxg4 Kf2 f5 Kg2 Kf7 h4 Kg6 b4 Kh5 c4 e5 e3 a5 g6 d3 b6 a4 c5 d6 b5 f3+ Kg3 f2 c6 a3 c7 f4+ Kh2 f3 g7 d2 b7 d1R b6 a2 Nc3 Nf6 Bd3 f1Q Bb1 f2 Bc2 Rd2 Na4 Nd5 Bb2 Qe7 Nc3 Ra4 Nh3 Qa6 Rhf1 Rb4 Nb5 Bd7 c8B Nc7 Bf5 Na8 Bd4 Rh6 Bh7 Rf6 e4 Rf3 Bf5 Rc3 Bh7 Rcc4 Nf4+ Kh6 h5 Kg5 h6 Kh4 Bg6 g3+ Kg2 Bg4 Be6 Nd7 b8Q Bh3+ Kh1 g2+ Kh2 g1N b7 Ne2 Qc8 Bg4 b8Q Bh3 Rad1 a1N Qb6 Nb3 Qcc5 Na5 Ra1 Nc1 Ra3 Bg4 Nh5 Bh3 Rh1 Bg4 Ba1 f1N+ Kg1+ Bh3 Rh2 Ng3 Rf2 Nh1 Kh2 Rd5 Rf7 Bf5 Rf6 Rd2+
1q3Bk1/b2n1bp1/P2nB1r1/3Prn1P/2N2B1n/2NpQR1R/1qn3K1/1Qr5 w - - 0 1 illegal: No possible last move
2B1rRq1/3bNPn1/NK2kbQR/P5P1/p3n3/q1N3rp/1nQ1n1nB/6b1 w - - 0 1 illegal: No proof kernel
K2N3q/bnr1p2B/1B2rP2/6p1/b1b2q2/1PbN1P1R/Q1n1k1B1/R1Qb3n w - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 exf5 h6 Ra3 hxg5 Ra1 g4 Kd2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 g5 c4 g3 h4 g2 c5 a3 c6 a4 f3 d3 h5 a2 c7 d2 h6 a3 h7 Ba6 c8B Bg7 Qb3 d1B Qe3 Qf8 Qe2 Ra7 Nc3 Rc7 Bf4 Bc4+ Kd4 d5 Qc2 Na6 Qb1 Nh6 Bc1 Ba4 b3 Ng4 Bd2 Nc5 Nb5 Nf2 Ne2 g1B Ba5 Nb7 Bg2 Rg8 Rh3 Nh1+ Kc3 Ke5 Kb4 d4 h8Q d3 Nd6 d2 Qc1 d1B Bb6 Bf6 Nf4 Rg6 Nd3+ Kd5 Qh7 Bfd4 Qh4 Re6 Nf7 Qh8 f6 Bge3 Rb1 a1N Nd8 a2 Qf2 Bb2 Bd7 Be5 Be8 B3d4 Bg6 Be3 Ba5 Ba7 Bh7 Bb2 Qe2 Kd4 Bb6+ Nc5 Ka5 Nc2 Rg3 a1Q Rh3 Qa2 Ra1 Qb1 Qcd2 Qc1 Qde1 Qf4 Q1d2 Nb4 Qc1 Bc3 Qa2 Bb2 Qc2 Ke3 Qc3 Ke2 Qc1 Nc2 Nb7 Bd5 Nd8 Nb7+ Ka6 Re4 Bg6 Bf7 Bh7 Bc3 Ba5 Be3 Bb6 Bc4+ Ka7 Re6 Ka8 Bc5 Ba5 Ba7 Bb6 Qe8 Rg3 Qf8 Rh3 Qh8
q6b/1nbPp2N/2b2n1Q/1n1p3N/kB2qPK1/1nQ2P2/r2R1N2/2R1rBn1 w - - 0 1 illegal: No proof kernel
1N1Kr1b1/qqBp1NqQ/7q/2R3q1/1P3b1p/1rQQBk2/R3rPnP/4n3 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 e5 g5 e4 g6 fxg6 e3 g5 Bc4 g4 Bd3 exd3 Kd2 Kf7 b4 Kg6 c4 Kf5 c5 Ke4 c6 g5 c7 a5 b6 h5 b7 g3 Qb3 g4 Ba3 h4 Qc4 a4 Qc2 g2 Qc5 g3 Ra2 Nh6 Qd6 Nc6 b8B Qf6 Ne2 g1Q Bb2 g2 Ra1 a3 Bc1 a2 Nbc3+ Kf3 e4 Ra3 e5 Ba6 c8Q Rb3 e6 Ne5 e7 Bc4 e8Q Nf5 Qed8 Ne3 Bc7 Bh6 Qda6 Rh7 Nd1 Bg8 Nb2 Bf4 Nc4 Re7 Nd6 Qh8 Nf7 Qh6 Rb1 a1Q Rb2 Qa4 Ra2 Qac6 Qf8 Qb7 Qg7 Qa7 Qh7 Qb7 Bb2 Qa1 Qc4 g1Q Bc1 Qgg5 Qc3 Qa7 Qa6 Qb7 Rg1 Qgg7 Rg6 Qg5 Rc6 Ng2+ Kd1 Q7h6 Rc5 Qb2 Be3 d2 Qag6 Nd3 Qf5 Qa3 Kc2 d1R Qfg6 Rh1 Qd6 Nde1+ Kd2 d3 Nd4+ Kg4 Nc6 Kf3 Nb8 Qaa7 Qc4 Rb2+ Kc3 d2 Kd4 Rb3 Qc3 d1Q+ Kc4 Qa1 Qdd3 Qe4+ Kb5 Rf1 Qc1 Qag7 Qa1 Nc2 Qac3 Re1 Qf6 Re2 Qc6 Qa3 Kb6 Nce1 Kb7 Qa4 Kc8 Qa7 Kd8 Qed5 Qf6 Qdb7 Qfc3 Re8+
1N1rq2R/rr1pr1KR/1k2bn2/1n2B2Q/P3BQP1/1Q1P4/Np3b2/rnq5 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 c3 axb4 Rh2 bxc3 Rh3 Ra7 Rh1 Ra8 Ke2 b5 Kf3 c5 Kf4 h5 Kg5 e5+ Kg6 h3 a4 e4 f4 b4 g4 c4 f6 b3 d3 h2 f5 h4 Qc2 e3 Bg2 h3 Na3 e2 Bf1 e1R Be2 Na6 Be3 Bb7 Qb1 c2 Bf2 c1N Bh4 c3 Nc4 c2 Bf2 Na2 Bf1 Nc3 Bh4 Bd5 Ne2 Ra7 Bg2 Nc7 Ne5 Bc5 Bg3 c1R Kg7 b2 Qa2 Bf2 Qb3 N7b5 f7+ Ke7 f6+ Kd6 f8Q+ Kc7 f7 Kb6 Qe8 Be6 Rg1 h1R f8Q h2 Nc6 Bc4 Qf5 Nf6 Nb8 Rc2 Nc1 Re7+ Qf7 Qc8 Rf1 Rg1 Qe4 h1Q Be5 Qh5 Bh1 Rd8 Na2 Qc5 Qf4 Qh8+ Kg6 Qe8 Be4 Qc8 Kh6 Rc1 Qg6 Bf7 Kg7 Rc2 Rae1 Rc1 Re3 Ra1 Rb1 Rc1 Rh3 Rc2 Rf1 Nb1 Rfh1 Rcc7 Rh8 Rcb7 R1h7 Qc1 Qh5 Be6+
2N1b3/1PQ5/R1Q4K/n3P1qN/2qnpbr1/3bRPb1/r3pr1N/k4bBB w - - 0 1 illegal: No possible last move, all moves rejected
2nN4/np3Q2/1r2P2p/4R1n1/Pk2B1b1/NnbPR1BQ/B1K3q1/q3r1qn w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Kd7 g4 Kd6 a4 Kc5 d6 f5 e5 h6 d3 b3 Kd2 f3 d7 f2 g5 f4 g6 f3 g7 h3 Na3 h2 Bg2 f1N+ Kc3 b2 Nc2 b1Q Bh3 f2 Ne3 Ng3 Nf3 f1Q Nd5 Qg2 Bf4 Qf6 d8Q Nc6 Qd7 Na7 Qd2 Qbg1 Nd4 Ne4+ Kc2 Ne7 g8B Bg7 Bg3 Ng5 Nc3 Kb4 Ne6 c5 Re1 c4 Nb5+ c3 Na3 Qff1 Re2 Qa1 Re3 Bf6 Bf7 Re8 Nd8 Bg7 Qc7 Bg4 Ba2 Nec8 Qf7 Re6 Qdf2 Rb6 Qe2 Qge1 Rf1 h1N Rf5 Qeg1 Qd2 Q2f2 Bf1 Qfg2 Be2 Bh8 Bf3 Rc6 Re1 Q2f1 Ne6 Ne7 Qh2 Re8 Nd8 Nec8 Qh3 Qfg2+ Re2 Rf6 Bfd5 Ree6 Bf3 Rb6 e6 Bg7 Rc5 Bh8 Bfd5 Rf1 Be4 Bd4 Re5 Re1 Nb5 Ka5 Kb3 c2 Re3 Bc3 Bf2 c1N+ Kc2 Kb4 Na3 Qf3 Bh4 Nb3 Bg3 Qfg2+
8/pR1NK3/q1rRp2n/Qb1q4/4P1bP/q1BRn1qq/1Nn2P1k/1Q3Br1 w - - 0 1 illegal: No proof kernel
KN1Q2R1/pB5p/1Nb3b1/Rb2q1rk/rQP4B/1B2q3/1n1bbPqP/4n3 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 Kf7 Kd3 Kg6 Kc4 d5+ Kd3 g3 e4 b3 c4 b2 b6 g2 e5 Qe7 b7 Bd7 e6 Na6 b8Q Nb4+ Ke2 d3+ Kf3 d4 Ke4 d2 Qc2 d1B Qb3 d3 Be3 d2 Bd3 Nc2 Kd5+ Kh5 Ra2 g5 Ne2 g1Q Na3 b1B Be4 g4 Bg5 g3 Nb5 g2 Nbd4 Nh6 Nb5 Ng4 Nd6 Rg8 Ne8 Bh6 Qd8 Qe1 Qb4 g1Q Nd6 Rb8 Nd4 Qg2 Nc6 Qe3 Nc8 Ne1 Rg1 Be2 Ra5 d1B Nb6 Ne5 Bh4 Ba4 Bf3+ Rg4 Be4 Qe8 e7 Rg5 Kd6 Bbd3 Kc7 Bb5 Bd5 Qh8 e8B+ Bg6 Be4 Qg7 Bc2 N5d3 Bb3 Qf6 Bf7 Nb2 Bd5 Bde8 Be4 Rb7+ Kc8 Qe5 Nb8 Bec6 Bd5 Rd7 Be4 Rd6 Kc7 Bce8 Kb7 Rd1 Bc6 Ra1 Ka8 Ra4 Bb7 Bec6 Rf1 Nc2 Rd1 Ne1 Rd7 Bf8 Rg7 Bc5 Rg8 Bd4 Ra6 Bc3 Ra5 Bd2
q3qn2/B1nQRBN1/3Nb3/1q5P/2n1p1P1/4rkNp/2P1R2b/Kq2Qr1b w - - 0 1 illegal: No proof kernel
n1r5/1R5q/q1N3nr/B1nNR1np/2kPP3/Kbb1QN2/Q3qp1P/2b2B2 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g3 b5 axb5 fxg3 Ra4 dxc4 Ra6 Qg5 Ra1 Qd8 d4 Kd7 Kd2 Ke6 Kc2 Kd5 b4 f5 Kb2 g5 e3 c5 b6 h5 b7 a5 b5 c3+ Ka2 g4 b6 c4 Qe2 c2 Na3 a4 Qd2 g2 Nb5 a3 Qd1 f4 Nd6 c3 Qe1 f3 Nh3 g1N Ng5 f2 Ngf7 g3 Ne8 g2 Ne5 Nf3 Bd2 g1Q Kb3 c1B Bd3 a2 Be2 c2 Nd3 Qg6 Qg1 Be6 Ne1 Rh6 Rb1 a1Q Qg3 Ng5 Nf3 Qa6 Re1 Qe7 Ba5 Qgh7 Bf1 Nd7 b8N Bf7 b7 Nb6 Nc6 Rc8 b8Q Na8 Qgf4 Qe5 Qb6 Ne7 Qa7 Ng6 Qg3 Bb4 Nf6+ Ke6 Rb2 Bc3 Ka3 Qeb5 Nd5 Qe2 Qh3+ Kd6 Nf4 Bb3 Nd5 B1d2 Qf7 c1N Qa7 Nd3 Rbb1 Bc2 Rb6 Nc5 Rb7 Qb6 Qa6 Ba4 Qc4 Qa6 Qa2 Bb3 e4 Bf4 Rb1 Bc1+ Rb2 Qac4 Re7 Qa6 Re5 B1d2 Na7 Bc2 Rb7 Bd1 Ne1 Bb3 Nb5+ Kc6 Qe3 Nge6 Nf3 Ng5 Nbc7 Qg7 Ne6 Qh7 Rg7 Kb5 Rb7+ Kc4 Nd8 Qd7 Nc6 Qe7 Nf4 Qh7 Nd5 Bc1+
q4r1q/qb1R2NQ/1n2B1N1/2qBp1r1/1pn1bb2/3P1k2/1RP2BnP/1K2Q3 w - - 0 1 illegal: No proof kernel
N3QQ2/3nR1br/b5q1/RPPk1qBP/qKn1pr2/nB4R1/1b1N1p2/6b1 w - - 0 1 illegal: No possible last move
1n4b1/r1q1q1r1/k4qnK/p1QP4/1P6/1n2N1Rp/1BB4P/bBRNbn1Q w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 Bc4 dxe4 Bd3 c5 Bf1 cxb4 Ne2 b3 Ng1 b4 axb4 Be6 Be2 Bd7 Bf1 Bc8 Ke2 Kd7 Ke3 Kc7 Kf4 Kb6 Kg5 e5+ Kh5 g5 f4 a5 c4 b2 d4 e3 f5 g3 d5 e4 f6 g2 f7 e2 c5+ Ka6 c6 g4 c7 e3 Qd2 g3 Nf3 g1N Ra4 g2 Na3 b1N Ne5 Be6 Qb2 Nd2 Nac4 e1Q Nd7 e2 Ra3 Qf6 Ra4 Bg7 f8Q Ra7 Ndb6 Ne7 Ne3 Nb3 Qa1 Rg8 Nbc4 Ng6 Nd1 Nf3 Qc5 g1Q Ra3 Nfd2 Bb2 Qgg3 Nce3 h6 Bh3 Nf1 Bf5 Bh8 Rg1 Rg7 Bc2 Bg8 Rh1 Qgd6 Rg1 Qd7 c8B+ Qb7 B8f5 Qbe7 Be6 Qg3 Bef5 e1B Bb1 Qgc7 Bfc2 Nbd2 Rc3 Nb3 Rg3 Qfd6 Kg4 h5+ Kf5 h4 Kg4 h3 Kh5 Qdd8 Kh6 Nfd2 Be4 Nf1 Rc1 Rf7 Bf5 Bf6 Bfc2 Rg7 Qa4 Bfc3 Qe8 Qf6 Qe4 Qde7 Qh1 Be5 Ba3 Ba1 Bb2 Qef8 Qf3 Qe8 Qh1 Qee7
R1B5/1r1Br3/1n1r1b1P/nbrp1Pnq/QNQ1N2b/1Rq4K/5pP1/2Bk4 w - - 0 1 illegal: No proof kernel
R3nB2/rR1nN1rq/1K4P1/Q4N1B/2P2Ppb/1b1q3k/nQ1Q1bp1/1n3q2 w - - 0 1 illegal: No proof kernel
1bBrq2Q/N1qqn3/1Nrr2pB/P4kqQ/1K3p1Q/1P3P1n/4b3/3R2bR w - - 0 1 legal: proof: b4 a5 Bb2 axb4 Bd4 b5 Bc3 b3 Bb2 b4 Bc1 b2 g4 h5 e4 hxg4 e5 b3 cxb3 d6 Qe2 dxe5 Qd1 e4 a4 Kd7 h4 Ke6 d4 c5 Kd2 f5 Kc3 g3 h5 e3 h6 f4 f3 c4 h7 e2 d5+ Kf5 d6 e1Q+ Qd2 e5 a5 g2 d7 g6 Rh4 e4 Rh2 e3 Ra2 e2 Ra4 Nc6 Ra1 Ne5 Ra2 Qeh4 Rh3 e1Q Be2 Qhg5 Na3 b1R Bb2 Ra6 Rh1 Rd6 Ra1 Ba6 Nb5 Ne7 Na7 Ng4 Kb4 Rc1 Bg7 c3 Bh6 c2 Bc4 Qe6 Ne2 g1B Nc3 Nf2 Nd5 Qe8 d8Q Q6d7 Nb6 Nh3 Qh2 Bg7 Bd5 Be5 Bb7 Be2 Ba6 Rdd1 Rb1 Bb8 Bc8 Rd6 Ra1 Rf1 Re1 c1Q Rd1 Rf8 h8Q Qc7 Rd4 Rc1 Rd1 Nf2 Qh5 Nh3 Qc3 Rh8 Qe1 Rcc6 Qeh4 Qg8 Qf8+ Qf7 Qg7 Rd8 Qh8 Qe8
3rb1NQ/B1nB2q1/2p2b1P/1r2n1Rq/3QN1Rn/1B1q2P1/K1P2bp1/1b5k w - - 0 1 legal: proof: e4 g5 b4 a5 e5 axb4 e6 dxe6 Ba3 e5 Bc1 e4 Ne2 g4 Ng1 h5 Qe2 g3 Qd1 h4 fxg3 h3 Qf3 hxg2 Qg4 Ra4 Qd1 Ra8 d4 Kd7 Kd2 Ke6 a4 Kf5 h4 b5 a5 e5 h5 b3 Kc3 c6 Kb2 e3 h6 e4 d5 e2 a6 Kg4 a7 f5 d6 b4 d7 e3 Ra4 f4 Qd2 e1N Ra6 f3 Qe2 Qe7 d8Q Bg7+ Nc3 Nd3+ Kb1 b2 Ra2 Bf6 Qb6 Ne5 Nd5 Na6 Ra3 Nc7 Rb3 Qg7 Ne7 Bd7 Rh5 Rb8 a8B Be8 Qea6 f2 Bc4 f1Q Qc5 e2 Bb7 e1B Ne2 Bf2 Nc3 Qd3 Rg5+ Kh3 Ne4 Kh2 Qa8 Kh1 Bc8 Rb6 Bd7 Rb5 Ng6 Ne7 Ka2 Rg8 Be3 Nf5 Ne7 Nh4 Qd4 Rh8 Rc3 Rf8 Ng8 b3+ Ka3 b1Q Qd8 b2 Bb3 Rc5 Rc4 Qbd1 Ka2 Rb5 Qd5 Qc1 Nd6 Bg6 Ba7 Bf7 Ne7 Qcd2 Ra4 Qdg6 Rag4 Qdd3 Ne4 Qh5 Qd4 Rh8 Qg8 Bg6 Qh7 Rd8 Ng8 Be8 Qh8 b1B+
2QK4/1B3Bn1/Npb2B2/1b2r1q1/1q1n3N/PPkqn3/p1P2Rqb/1Q1r2R1 w - - 0 1 illegal: No proof kernel
2NN1Q2/BBb2r2/P2q2k1/1Kq3p1/1RBqPr1b/1R3q1n/3P1pbn/2Qn4 w - - 0 1 illegal: No possible last move, all moves rejected
1qQRNnK1/1QB5/p1BqP1b1/2brR3/3r1NP1/2B5/2nPp3/rb1r2kq w - - 0 1 illegal: No proof kernel
1R1N2r1/4n1BN/pKp1b2n/2R3Bk/n1rQr3/q1b1P2P/1NPq2Q1/nb6 w - - 0 1 illegal: No possible last move
N1bb3K/5R1P/P1nqRp1N/rqB3r1/4pP2/Q2bn3/5r1Q/Bk1bN2n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 c5 Bd3 d5 Bc4 dxe4 Bb3 c4 Kf1 cxb3 Ke2 Na6 Ke1 Nb8 f4 Kd7 Ke2 Kd6 Ke3 Kc5 a4 Kc4 h4 b5 d4 e5 h6 g5 h5 b2 h7 b3 a5 b4 h6 g4 d5 g3 d6 g2 d7 Qe7 d8N Qd6 Nd2+ Kc3 Nc4 b1Q Nb6 b2 Qh5 b3 Nf3 g1R Ne1 Ne7 Qh2 Rg5 Ra4 Ra7 Na8 Nbc6 Rg1 Rhg8 h8B Rg2 h7 R8g5 Rb4 Rf2 Rb7 Ra6 Bg7 f6 Nf7 Rb6 a6 Rb5 Ra7 Ra5 Bh6 Qa1 Bg7 b1B Nh6 Qa4 Rd7 Qb5 Bb2+ Kb4 c4 Bc2 c5 Bd1 Bd4 Ka3 Ba1 Ka2 Rh1 b2 Rf1 Na7 c6 b1B c7 Bd3 Rh1 Kb1 Rg1 Ng6 Rf7 Be7 Bf8 Bd8 Be7 Nc6 Rf1 Bcg4 c8Q Nh4 Qb8 Be6 Qb6 Bc8 Qc5 Nf3 Qc3 Ng1 Qa3 Ne2 Rg1 Ng3 Rf1 Qd7 Bc5 Nh1 Rg1 Qd6 Rg3 Rh5 Rg8 Rf5 Re8 Rg5 Re6 Rf1 Kd2 e3+ Kc3 e2 Kd2 Bc4+ Ke3 Rf2 Ke4 Qc7 Qa4 Bd3+ Kd5 Qcb6 Qa3 e4+ Kd6 Bb7 Kd7 Bc8+ Ke8 Qc7 Kf8 Qd7 Rg7 Qd5 Kg8 Qd6 Nc2 e1N Kh8 Ng2 Ne1 Ne3 Rb7 Rg4 Rf7 Rg5
1B1Qr3/1QN2kNp/P1br4/2K1pr1b/q1R1P3/2R5/1P2nqB1/1qn1rR1b w - - 0 1 illegal: No proof kernel
nr6/1b2QBP1/1kNq4/N1n2p2/Q3r1q1/3p2R1/P2BNPRb/qbn1K1b1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 c3 bxc3 Qd3 gxh4 Qd6 Nc6 Qd1 Nb8 e4 c5 g4 f5 g5 d5 g6 Kd7 e6+ Kc6 g7 b5 e5 h5 e7 h3 e8Q+ Nd7 e6 b4 e7 b3 Bg5 c4 Qg6+ Ngf6 e8N d4 Bd2 b2 Qdg4 h2 Qh3 c2 Qhg2+ Kb6 Q6g3 c1B Nh3 d3 Nc7 c3 Kd1 h4 Ke1 c2 Qg5 Bd6 Qe3+ Nc5 Qef3 Nfd7 Na6 Bb7 Qe4 Re8 Qe3 Rb8 Nb4 Re4 Na3 b1B Nf4 h3 Rg1 h1Q Ne2 h2 Qg4 Qf3 Rg2 h1Q Nc6 Bh2 Qh4 Qg4 Nc4+ Kb5 Qd4 Nb6 Qe7 Na8 N4a5 Qd6 Qa4+ Kb6 Rg3 Bg1 Bg2 Bb2 Bf3 c1N Bg2 Re3 Bd5 Be5 Bf7 Re4 Rg2 Beh2 Rg3 Bc2 Rb1+ N1b3 Rc1 Bb1 Rc4 Nc1 Rd4 Qf6 Rd6 Qa1 Rg6 Qhf3 Rg2 Qfg3 Rg5 Qd6 Rg6 Qh5 R6g3 Qg4
5n1B/2N2rPk/b1RK1Q1p/5q2/1br1n1bq/1pqPbn1P/1RRB4/2Q3N1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 g5 b4 gxf4 b6 c6 b7 Qd4 b5 Qd6 b6 Qd8 Bb5 cxb5 Kf2 a5 c4 e5 g4 f5 h3 Kf7 c5 Kg7 c6 h6 c7 b4 g5 e3+ Kf3 e2 g6 e1N+ Ke2 e4 Rh2 b3 Ra4 e3 Ra2 a4 Bb2+ Nf6 Rg2 f3+ Kf1 e2+ Kf2 a3 Kg3 f4+ Kh2 f2 Qc2 f1Q Ba1 f3 Kg3 f2 Kf4 Na6 Ke5 Nf3+ Kf4 e1Q b8Q Bg4 c8R Bb4 b7 Rf8 Qe5 Nc5 b8B Ra4 Nc3 Rf7 Rb2 a2 Nd5 Qe7 Qef5 Nh7 Nc7 Nf8 Qc1 Qh4 Qf6+ Kg8 Ba7 Qb5 Bb6 f1B Ba5 Qd7 Rc2 Ba6 d3 Qc3 Bb2 a1B Rge2 Nd4 Ke5 Qf5+ Kd6 Nf3 Rh2 Qc4 Be5 Bd4 Rb2 Be3 Rhc2 Be1 Bd2 Qc3 Qe6 Rb4 Bh8 Rc4 g7 Kh7 Qe5 Bg3 Rb8 Bgf4 Rb6 Bg5 Rc6 Bd8 Nb5 Ba5 Qf6 Bb4 Nc7 Ne4#
k1q5/Nb3PR1/r1pnb3/2bR1Bn1/r4NB1/PQq3Q1/pbP1q1Qn/2K5 w - - 0 1 illegal: No proof kernel
2N1r3/qN1QP3/2r2R2/1Kq2b1B/p3q3/PBkbP1p1/nRnn4/N1Q1b1n1 w - - 0 1 illegal: No possible last move
2B2qr1/4p1bR/r1n1NR2/2P3QN/2N5/1bQp1rr1/2q1PP1B/1n1K1kbn w - - 0 1 illegal: No possible last move, all moves rejected
3nqrQ1/2B1pb1P/1R1qb2k/QRNNb1nP/P3bp1R/8/5rB1/2Kq1r2 w - - 0 1 illegal: No possible last move, all moves rejected
nb2qrrN/B2P2q1/7N/1B1q1b2/2P1Np1b/k2P1Q1R/1p2r2K/nR1Q2b1 w - - 0 1 illegal: No proof kernel
R4b1R/1k1P2nK/1bb1Q2R/p1qQ2nq/1r6/r2nB1N1/1q1Pp1BP/n3N3 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 h5 a4 bxa4 g4 hxg4 Ba6 f5 Bf1 fxe4 Ke2 Kd7 Ke3 e5 f4 c5 b4 Kc7 b5 g5 f5 g3 d6+ Kb7 d7 c4 b6 a3 f6 c3 f7 g4 Ra2 g2 Nf3 g1Q+ Ke2 e3 Kd3 c2 Ke4 e2 Kf5 e1N Kg6 e4 Bc4 g3 Be6 g2 Ra1 e3 Nd4 e2 Nc3 a2 Bd5+ Nc6 Ne4 Nf3 Bb2 c1Q Qb3 Ng5 Nf3 Qgc5 Rg1 Qe8 Ne1 Nh6 Ng3 Nf5 Bd4 Ng7 Be3 Qb2 Bf3 a6 Qd5 Rh4 Rf1 g1B Bg2 Qee5 Rf6 Rb4 Qe6 Qed5 Kh6 Ne5 Rg6 Ngf3 Kh7 Nd3 Rh6 Qh5 Qd5+ Kb8 b7 Ng5+ Kg8 Ka7 b8R Bb7 Kh8 Bc6 Re8 Be7 f8Q Kb7 Qff5 Bf8 Qfe6 Ra7 Rb1 a1N Ra8 a5 Rc1 Ra4 Rc4 Ra3 Rh4 Ra6 Kg8 Rb6 Rh8 Rb4 Rh3 Qg6 R3h7 Qh5 Rh6 Qcc2 Bf4 Bb6 Be3 Nf3 Kh7 Qcc1 Bh1 Qc5 Bg2 Ng5+
8/qk1pQb1R/3rn2Q/2b2r2/qP1n1q1P/pQ1b4/RBNPB3/b1r2NK1 w - - 0 1 legal: proof: b3 b5 a3 b4 axb4 c5 Ra4 c4 Ra2 Ba6 Ra1 Bc8 f4 cxb3 g4 h5 f5 hxg4 f6 exf6 Ra2 f5 Ra1 f4 Kf2 a5 e4 g5 c4 f5 h4 g3+ Kg2 f3+ Kh3 f4 e5 g2 Kh2 b2 c5 a4 e6 a3 e7 g4 c6 g3+ Kh3 f2 c7 f3 Be2 f1B Bc4 f2 Ba2 Rh6 Qg4 Na6 Qe4 Nc5 Qe2 Bb7 c8Q Bg7 Be6 Bd5 Ra2 Ra5 Qc6 Qa8 Nf3 g1Q+ Kg4 g2 Qd1 Bd3 Kh3 f1Q Bg4 Rd6 Nh2 Qf4 Nc3 b1R Nb5 Ba1 Be2 Nh6 Nd4 Ne6 Nf1 Nf5 Bb2 Rc1 Nc2 Qga7 Rg1 Nfd4 Qb6 B5c4 Qc6 Rf5 Qb6 Kf7 e8Q+ Kf6 Qed8+ Ke5 Qe7 Kd5 Qa6 Qg5 Kh2 Qf4+ Ng3 Bb3 Rf1 Qc6 Kg1 Qa4 Rf3 Bbc4 Nf1 Bb3 Rg3 Bbc4 Rg7 Bb3 Qa5+ Kc6 Rh7 Kb7 Qe5 Nc5 Q5f6 Bf7 Qh6 Nce6 Qe1 Qa8 Qg3 Q8a7 Kh2 g1B+ Kg2 Bb5 Qb3 Bd3 Kh1 Nc6 Kg2 Bc5 Kh1 Ncd4 Kg2 Nc7 Kg1 Nce6
bq1QN3/1B1p3q/nQ1P1qk1/p3r3/2n3rR/qNr1PP2/1BR2Bbb/6K1 w - - 0 1 illegal: No proof kernel
n1r1R1K1/Q1Pb1qB1/2n3rb/1PNn1b1p/4Bq2/3rN1RP/p2Q1r1R/1k6 w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 f4 h5 Kg6 e5 Kf7 a5 c4 g5 d3 a4 c5 a3 c6 g3 f5 b3 c7 g4 h3 b2 f6 a2 Na3 Kc3 d4 b1B d5 e3 d6 g2 d7 g3 Bd2+ Kb2 Bb4 e4 Nc2 e2 Ba5 e1R Ne3 Ne7 Bd3 Qe8+ Ke6 Nbc6 f7 Nd5+ Kf5 Bh6 Kg6 Rf1 d8Q Rf2 Qd7 Nb6 Qd5 Bd7 Qe1 Rc8 Qd1 Na8 Ne2 g1R Qa4 g2 Ng3 Rg8+ Kh7 Rd1 f8R g1N Rh2 Rg6 Rh8 Ne2 Bc3+ Kc1 Bg7 Nf4 Qdd4 Qf7 Qaa7 Nd5 Re8 Qf4 Kg8 Rdd2 Ng2 e3 Ne4 e2 Nc5 e1Q Be4 Rd3 Ne3 Qc3 Qb4 Qcf6 Qe1+ Kb2 Qea5 Bc2 Rg1 Bb1 Rg5 Kc1 Rg3 Qf7+ Kh7 Bc2 Qd2+ Kb1 Kh8 Bd1 Kh7 B1g4 Kh8 Bgf5 Kh7 Qe7 Kg8 Qf7+
3q4/kbP1qP2/2r1n2N/Npnr4/2BQ1pK1/2PQ2Bb/R1q2r1R/1Rr3b1 w - - 0 1 illegal: No proof kernel
2q3b1/k1PP1BB1/n2BQ3/r1pRR1N1/Q6b/3bKr1p/2b1nP1q/rN2n3 w - - 0 1 illegal: No proof kernel
1RKbQ1b1/1rPpb1p1/2k4q/3qR2N/n1P5/N2PQ1Br/1Q1Bn3/2n2nq1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 h5 Bc4 hxg4 Bd3 c5 bxc5 a6 Bb5 axb5 Ke2 e5 Ke3 b4 a4 b5 h4 b3 c4 g3 f4 b2 c6 b4 a5 g2 a6 b3 a7 Ne7 c7 Nbc6 h5 Nf5+ Ke2 e3 Kd3 e4+ Kc3 e2 h6 e1B h7 e3 Qf3 e2 Qd5 Qg5 Rh5 Rb8 a8Q Bb7 Qe6+ Be7 Na3 b1Q Qe3 b2 Nh3 Qe4 Rb1 Ng3 f5 g1Q f6 Nf1 Nf4 Qh6 Re5 Qd5 Nh5 Nd4 f7+ Kf8 Qa7 B1h4 Qb6 e1N Qf6 Bd8 Kb4 Ne2 Qfb6 Bhe7+ Ka4 Ng2 d3 Ngf4 Bd2 Nc1 Qb5 Bc6 Ka5 Nfe2 Ka6 Rb6+ Ka7 Bb7 Kb8 Bc6+ Kc8 Rb7 Ra1 b1N Qb2 Nbc3 Rb1 Na4 Qc3 Ra7 Rb8 Rb7 Qb4 Qdg2 Qb2 Bd5 Nf6 Be6 Nh5 Qd5 Nf4 Bc5 Nh5 Ke7 f8B+ Ke8 Be7 Bg8 Bh4+ Bce7 Bg3 Kf8 Qa7 Kf7 Rg5 Ke6 Re5+ Kd6 Qe3 Be6 Nf4 Kc6 Nh5 Rf8 h8Q Rf3 Qe8 Bg8 Bh2 Rh3 Bf4 Rh4 Bg3 Rh3
3B4/1P1R1Kq1/4rp1Q/n2pb1P1/B4n1r/NPR1N1Qb/1qnR1n1r/4kq2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 c4 Kg3 e4 Kf2 g4 a5 b3 d5 b6 h5 b7 f3 c5 f6+ Kf4 h3 g5 h2 c6 h4 e5 h3 e6 d3 Kf5 a4 Kg6 d2 e7 a3 e8R a2 c7 Bd6 Re1 Nc6 Re4 Na5 Kg7 Ne7 Bb5 Be5 Re3 Ng6 Ba3 Nf4 Rc3 Ra6 Ba4 Rh4 Be7 Qh8+ Kf7 Re6 Na3 Bd7 Rac1 a1N c8Q Nc2 Qb8 Bc8 Rb1 Bd7 Qc1 d1Q Ne2 Qd4 Rb2 Qd2 Re1 h1N Nd4 h2 Nf5 Bc8 Qa1 Qc1 Ra2 Qb2 Ne3 Bd7 Rc1 Ke2 Rc7 f2 Bd8 f1Q Qb1 Bc8 Rd7 Nf2 Qd6 h1R Qa1 Ne1 Rc3 R1h2 Qb1 Kd2 Qg6 Nc2 Qh6 Ke1 Qb4 Ng2 Qg4 Nf4 Qg3 Ra6 Rdc7 Bh3 Rd7 Re6 Ra1+ Kd2 Rd1+ Ke2 Rdd3 Ke1 Rd2 Qg7+
2BbN2b/nP4pP/Rqq1N1p1/br1k3r/QBb4P/3n3K/7Q/1R2qN1r w - - 0 1 illegal: Other
6r1/kpB2rq1/8/N1K1PR1R/nP4Nr/QbnR3B/P1p1Q1bb/2nbq3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 Rh3 exf4 Qb3 a4 Rh1 axb3 Kf2 Kd7 g4 f5 e4 c5 d4 Kc7 d6+ Kb6 d5 h5 d7 b2 g5 f3 Ke3 f2 d6 c4 Kd4 f4 g6 h3 g7 h2 Bg2 f1N Nh3 c3 Na3 b1B Nc4+ Ka7 Ne3 f3 Ba3 h4 Ng1 h3 Kc4 f2 Nf3 Rh4 Bc1 Na6 Ng4 Qg5 d8Q Bc2 d7 Nf6 g8R Bb3+ Kd4 c2 Rg6 Ng3 Nd2 f1R Rh6 Bd6 Nc4 Qg7 Rh5 Nc5 Na5 Na4 Rf5 Nd5+ Qf6 Bb8 d8Q Ndc3 Qe5 Bce6 Bf4 Nge2+ Kd3 Bd7 Rd1 Nc1+ Kd4 Bc7 Qg5 Rg8 Rd3 Be8 Bg3 Bh5 Qe3 Rf3 Qe2 Bb8 Qf6 Rf1 Bc7 Rf3 Rf1 h1Q Re5 h2 Bh3 Rf2 Qff3 Qg1 Qfe3 Rf7 Rf5 Qe1 Qg3 h1B Qge3 Nb2 Kc5 Bg2 Nh6 Bhf3 Ng4 Qf6 Rh5 Qg6 Ref5 Qg7 Bd8 Bg3 e5 Bh2 Bc7 Nc4 Q2d2 Bd1 Qde2 Nb6 Qd4 Nb1 Qb2 Nc3 Qa3 Nba4+
r1b1rnr1/1p5P/1Q2N1BB/1bRRn3/Nk4KQ/q1q3P1/1P1bnp2/r5B1 w - - 0 1 illegal: No proof kernel
r4nRq/1p3P1b/RP2bN1b/1k1B1P1q/1b2KQ2/1qnn4/3r1Qp1/1R1N1B2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 hxg4 d4 c5 b5 cxd4 Ba3 Nc6 Bd6 Nb8 Bb4 axb4 Ke2 d5 Kd3 Kd7 h4 g5 c4 e5 a4 g3 f4 b3 b6 Kc6 f6 b2 a5 g4 h5 g2 a6 g3 f7 e4+ Ke2 e3 Kf3 d3 a7 d2 c5 e2 h6 e1N+ Ke3 d4+ Ke4 d3 h7 Bh6 Ra2 Ne7 Nf3 g1B Ra6 g2 Ng5 Nd7 Qe2 d1Q Qf2 d2 Nc3 Qh5 Nd1 Re8 h8Q Nd3 Qc3 b1B Qc4 Nf8 Nh7 Be6 Nf6 Nd5 Qcd4 Kb5 c6 Qb8 c7 Rd8 c8B Rd7 Qe1 Be3 Qf2 Rd8 Qe5 Bc5 Qed4 Bb4 Qde3 Bh3 Bg4 Rd6 Bf3 Be6 Rg1 Ng6 Rh1 Qh8 Qd4 Nf8 Qde3 Rb8 a8R Bc2 Qd4 Nc3+ Ke3 Qg7 Nb2 d1Q Nd7 Qh8 Nf6 Nd7 B1e2 Rd5 Re1 Re5+ Qe4 Bb1 Bf1 Qb3 Kd4 Bc2 Rb1 Rg8 Nd1 Rc8 Qg6 Re2 Qg4 Ne1 Bd5 Bh7 f5 Nd3 Qgf4 Rd2 Ke3 Rc6 Rg8 Rc8 Kd4 Nf8 Ke3 Ra8 Kd4 Na4 Ke4 Nc3+
2KR4/QpP2p1k/1n6/N1rb1NP1/Pn1qr2B/R4n1q/3Rqbnb/1B3Q2 w - - 0 1 illegal: No proof kernel
nn6/P3K1b1/1pBRP3/1q3Q1p/b2B3P/r3RrqN/Q2Qq1rk/2br3N w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 f5 c3 bxc3 Qd4 fxg4 Qa4 Nh6 Qd1 Ng8 h4 Ke7 e4 Ke6 Ke2 g5 Ke3 c5 a4 h5 f4 d5 a5 c2 a6 g3 Be2 d4+ Kf3 g2 Rh3 g4+ Kg3 b6 Ra3 c4 Ra4 d3 Bb2 c1R Nd2 c3 Nf1 c2 Bf3 d2 Rd4 Qd5 Rd3 Ra1 Bd4 c1B a7 Qb5 Qe1 d1R Qd2 Bd7 Re3 Bg7 f5+ Ke7 Kf4 g3 Kg5 Ra3 e6 Kd6 e7 Nf6 e8Q Rf8 Qa2 Nd5 f6 Nc7+ Kg6 Qe2 f7 Ba4 Qc8 Rg8 Qf5 Rf8 Rh1 Qb5 Nh3 g1Q Qd2 g2 Ng3 Qf2 Rh2 Qff1 Nh1 g1Q+ Bg2 Qfe2 e5+ Ke7 e6 Kd6 Qb1 Qgf2 Bc6 Qf4 Rg2 Qff3 Rg4 Qg3 Be8 Rg8 f8Q+ Kd5 Qf1 Rf8 Qbb2 Rf2 Qbc2 Rg2 Kf7 Kd6 Rf4 Kd5 Rff3 Kd6 Rd3 Kd5 Qa2+ Ke4 Bf2 Ke5 Rfe3+ Kf5 Rd6 Kg4 Ng5 Kf4 Ke7 Kg4 Bd7 Kf4 Bc6 Kg4 Nh7 Kh3 Ng5+ Kh2 Nh3 Nba6 Re5 Rf8 Bd4 Na8 Re3 Nb8 Qf5 Rf6 Qg5 Rf4 Qf5 Rf3
qRN2nBK/Pn6/pQ4bn/N1BR4/P4P1b/q2b3R/3r1p1Q/q1r1k2q w - - 0 1 illegal: No proof kernel
2n2K1N/pBbbp3/rkbRRnP1/5P2/Q1Q1q1BP/6Nn/1B1qr3/3rn3 w - - 0 1 illegal: No proof kernel
1n5n/1Q1Q1r1B/3p1R2/1bq1nb2/3b1k2/nrPPn3/N1R1PKpN/2n2BQ1 w - - 0 1 legal: proof: f4 a5 g4 c5 b4 cxb4 f5 h5 gxh5 b3 Ba3 b2 Bb4 axb4 f6 exf6 Nf3 f5 Ng1 f4 h4 Ke7 a4 Ke6 h6 Kf5 c3 b5 h5 g5 h7 f3 a5 b3 a6 b4 a7 d6 h6 g4 Ra4 g3 Rh5+ Kf4 Bh3 f5 Bf1 Bd7 Qc1 f2+ Kd1 Qc8 Na3 b1N Nc2 b2 Ra2 b3 Rh3 Bb5 Nb4 Bg7 Bg2 f1N Ke1 Nh2 Rh4+ Ng4 Bc6 Bd4 Bd7 Qc5 Rh3 Ne5 Nf3 Na3 Nh2 b1N Rc2 b2 Na2 Ne7 Bc6 Rc8 h8Q Rc7 h7 N7g6 Qc8 Rf7 Bg2 Nh8 Qc7 Nac4 Qc6 Na5 Bf1 Nb3 Qd7 Na3 Rh6 b1B Qb2 Nc1 Rf6 Kg5 Qb3 f4 Qd5 f3 Q5b7 Nhg6 h8Q f2+ Kd1 Bc4 Qhh3 Nh8 Qhg2 Bd3 Qg1 Bb5 Bh3 f1N Ke1 Ne3 Bf1 g2 Kf2 Nbc6 Qe6 Raf8 a8B Nb8 Qee7 Rg8 Qbd7 Rc8 Be4 Rc7 Bh7 Rb7 Rb2 Be4 d3 Bf5 Rc2 Rb6 Qb7 Kf4 Qe8 Ba4 Qe6 Rb3 Qed7 Bb5
N1Qr2N1/1Rr2B2/k2p2Q1/1nBKR1n1/bpR2q1P/1rPPb3/1r3r2/r3n3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 f5 e4 a5 h4 g5 d3 d6 b6 Kd7 c3 Kc6 e5 Kb5 b7 f3 Ke3 g3 Kd4 a4 e6 g2 e7 f4 e8R a3 Re5+ Ka6 Qc2 g4 Rf5 a2 Rb5 g3 Ne2 g1N Rh2 f2 Nd2 g2 Kd5 f3 Nb1 Nh6 Qb3 Rh7 Ke4 Qf6 Rc5 Bd7 Na3 Nf7 Nd4 Nc6 b8Q Qf4+ Kd5 Ng5 Nc4 Bh6 Be3 Na7 Nc6 Nb5 Be2 f1R Ne7 f2 Nb6 Rb1 Ng8 f1R Rc4 Rb2 Bc5 Rf2 Bh5 N1f3 Bf7 g1R Qd8 Rb8 Na8 Rgb1 Rh3 Ne1 Re3 Rg7 Re5 Rc8 Qf6 Rd8 Qg6 Be8 Qd1 Rb3 Qg4 R1b2 Rc1 a1R Qc8+ Ka5 Re7 Rh7 Rb7 Ka6 Be6 Rc7 Bf7 Na3 Rc2 Ba4 Re2 Nb5 Re3 Bg7 Re2 Bd4 Re5 Be3
K1N1Qq2/1r1Qb1rk/pB1R4/PP2N1pb/R1P1b3/3b2r1/2nb4/n2BNb2 w - - 0 1 legal: proof: c4 c5 d3 b5 Nd2 bxc4 Nb1 c3 Be3 c4 Bh6 Ba6 Bc1 Bc8 dxc4 e5 g4 h5 f3 hxg4 f4 exf4 Kf2 f5 h4 Kf7 e4 Kg6 a4 d5 b4 g3+ Kf3 g2 a5 d4 e5 d3 e6 c2 e7 d2 e8N a6 h5+ Kh7 h6 g5 b5 Nd7 Nc3 Nc5 Nc7 Ne7 Ra3 Nd5 Bd3 Nb4 Nb1 Rb8 Ra4 Rg8 Be2 Bb7+ Nd5 Rg7 Na3 Nb3 Bb2 c1B Nc2 Bc5 Ne1 Nc2 Bd4 Be7 Bb6 Nba1 Rh3 Qf8 Rh2 Kh8 h7 Ba8 Rh6 Rb7 Nh3 g1R Nf2 Rg4 Nfd3 Rg2 Ne5 Rg3+ Kf2 f3 Rd6 Bd8 Ne7 f4 Nc8 Be7 Kf1 f2 Bf3 Nb4 Ke2 Nbc2 Kd3 f1B+ Ke4 Be2 Kd5 Bd3 Be2 f3 Kc6 f2 Bh5 f1B Qg4 d1B Qd7 Bd2 Bg4 Rb8+ Kc7 Bh1 Bf3 Ra8 Kb7 Rb8+ Ka7 Rb7+ Ka8 Bg6 Bg4 Bhe4 Bf3 Bde2 Bh5 B2d3 Bd1 Rf7 Bf3 Kg7 Bd1 Kh6 h8Q+ Rh7 Qf6 Rg7 Qf7 Kh7 Qfe8 Bh5
b3bn2/k1q3bp/n3RBrP/b2rP1n1/2p2Q2/3NK2N/QBP1b3/5RbN w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 b4 a6 b6 Qh4 b7 Kf7 b5 Nf6 b6 Ke8 Bg2 Ng8 Bc6 Qd8 Bb5 axb5 Kd2 d5 e4 Kd7 f4 Kc6 h4 g5 e5 b4 f5 g3 f6 g4 f7 b3 h5 b2 h6 d3 Nf3 d4 Ra4 g2 Nc3 g1B Rh3 b1N+ Ke1 d2+ Ke2 g3 Rb4 g2 Ng5 d3+ Kf3 Bg7 f8Q Nf6 Ne2 Nc3 Nf7 Ra6 Rb1 Bd7 Qf1 d1B Rg3 d2 Qg8 Nce4 Bb2 Be8 Ng5 Nfd7 Nh3 Nf8 Qa2 Ng5+ Kf4 Rg8 Qf2 Qd7 Ke3 Ra5 Rg4 Qd8 Ng3 Na6 b8N+ Kb7 Nh1 c5 Nc6 c4 Nb4 Qc7 Nd3 Be2 Rf1 d1B Rf4 Ka8 b7+ Ka7 Rf6 Rd5 Rg6 Bf3 Re6 Bde2 b8B+ Ka8 Kf4 Be4 Qf3 Bb6 Qg3 Ba5 Ke3 Kb7 Qf4 B4f3 Ba7 Be4 Bc5 g1B+ Ndf2 B4f3 Be7 Ka7 Bd8 Bf6 Be7 Rg6 Bd8 Bh8 Bf6 Bg7 Rb6 Rd1 Rb5 Ba8 Rb6 Rd5 Re6 Bh2 Nd3 Bg1+
3n2r1/Q3KQ1q/2r2Bqq/1qP2PpP/1b3R1n/qp1b2Q1/B1k1N3/R2q1N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 b5 h4 e4 f4 b3 a4 d3 c4 b4 h5 g3 a5 b2 a6 g2 a7 e3 Qd2 e2 Nc3 b1Q Ra4 e1Q Qe3 d2 Nce2 d1Q+ Qd2 b3 Nf3 g1Q Rb4 Rh6 Ng5 Qe8 Nd4 Ba6 Nde6 Nc6 Ba3 Nd8 Nf3 Qee3 Bd3 Ne7+ Kd6 Qdc1 Nh2 Qgg6 Nd4 Qh7 Qg2 Ng6+ Kc7 d5 Nf1 Qed2 Bb2 Qb5 Qg3 Nh4 Ne2+ d4 Ba1 Rb8 a8Q Qa3 Qa7 Bc5 Ra4 Bb4 c5 g5+ Kd6 Qdb2 Bc2 d3 Rg1 d2 Rh1 d1Q+ Bd3 Ba5 Rd4 Bb4 Be4 Q1a2 Bb1 Qbc2 Bb2 Qa1 Ba2 Rg6 Bc3 Qab1 Ba1 Qh6 Rg1 Rc8 Bc3 Rc6+ Kd7 Kf7 f6 Rg8 Ba1 Qcg6 Bb2 Kf8 f7 Kg7 Ke7 Qgh7 Bc3 Qbg6 f5 Qb8 Bb2 Bd3 Ba1 Qb5 Rf4+ Bc3 Kd7 Kf6 Bb2 Ke5 Ke7 Kd5 Ba1 Bb4 Bf6 Be4 Rh1 Kc4 Rg1 Nf3 Rh1 Kd3 Rg1 Kc2 Rh1 Qh8 f8Q Bd3 Qf7 Q8h7 Nh2 Qd2 Ra1 Qd1 Nf1 Nh4
1B2k3/Q2nn3/P2R2b1/5rrn/P1n1Q1BK/3nR1bp/PpN2nR1/2qN2q1 w - - 0 1 illegal: Other
1b1Q3r/NQ3R2/P1nK2Q1/1q1P4/nB3n1p/pB1qRr1k/N3P1n1/5nnb w - - 0 1 illegal: No possible last move
4Q3/5bP1/n5R1/Bnk5/1bbRnpq1/2P1nPBp/K1Qr1bBn/1r2NN2 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 d4 Kd7 Kd2 Kd6 g4 f5 g5 a5 d5 e5 b6 h5 g6 h3 g7 h2 b7 h4 c3 e3+ Kc2 e2 Kb3 e1B Ba3 h3 Qh5 a4+ Kb2 e4 Qh7 f4 Ne2 e3 Qe4 Kc5 d6 Be6 d7 Bc4 Qg2 Na6 b8Q Qg5 d8B Nf6 Rg1 h1B Qf3 Ne4 Ba5 Qg4 Qe8 Rb8 Ng3 e2 Qg6 Bd6 Nh5 Rhd8 Ng3 Be7 Rg2 Rd2+ Kc1 Bf8 Bb2 a3 Qd3 a2 Na3 b3 Qc2 Rb5 Rb1 a1N Qe8 Be7 Rg1 Bd6 Bg2 Bf7 Qd1 Nc2 Nf1 Ne3 Nc2 Rb4 Ra1 Bf8 Ba3 b2+ Kb1 Bd6 Qe6 Be7 Ka2 b1N Bc1 Rb3 Qg6 Bc4 Qe8 Na3 Rb1 Nb5 Ba3+ Kd5 Bc5 Bf8 Bcb6 Bb4 Bd8 Kc5 Bh4 Bf7 Bg3 Nf6 Ba8 Bhd5 Rb2 Bde6 Bg2 Bc4 Rb1 Ne4 f3 Bf2 Qc1 e1N Qb2 Nd3 Rd1 Ne5 Ne1 Qd7 Qc2 N5g4 Rb1 Nh2 Rd1 Re2 Rd2 Qg4 Rd4 Rd2 Bh4 Na7 Bh1 Qe6 Rg6 Nb5 Bg3 Qg4 Bg2 Rb1+
r1n2Kb1/1kb2P2/1r2Np2/6Qp/2rbrb2/2QN1q1B/PRr3Pn/B1Q3R1 w - - 0 1 illegal: No proof kernel
k4bn1/q3PR1P/2Kpr1B1/1PBb1rq1/bRQQ1n1b/4b3/2N2pB1/1Nb5 w - - 0 1 illegal: No possible last move, all moves rejected
3kn3/2NprnB1/qQ6/PBbQ2P1/qn1KRrR1/3N1b1p/1nP5/n3N2n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 Kd3 h5 g4 e5 a4 b3 f4 b4 g5 h3 a5 h4 f6 b2 f5 b3 Ke4 d3 Ne2 h2 Ke3 d2 Ra2 h3 Ra3 e4 Nbc3 b1Q Ra4 b2 Nd4 Nc6 Qf3 d1N+ Kf4 e3 Ke4 e2 Qf4 e1N Nce2 Nd3 Nb5 Rh4 Ng1 Nce5 Kd4 Qa1 Qe4 b1N+ Bb2 Rf4 Nf3 Bb7 Ne1 Qc8 f7+ Kd8 f6 Nb4 Nc7 Bd6 f8N Nf7 Ng6 Nd2 Rg1 h1N Bb5 Bc6 Rg4 Qa6 Bc3 Nb2 Ne5 Qa2 N5d3 Nb3+ Ke3 Na1 Qd5 Nfh6 f7 Nf6 f8Q+ Ne8 Bd4 Nf7 Qh6 Rb8 Bg7 Rc8 Qc5 Bf3 Qe6 Ra8 Qb6 Rb8 Qd5 Qb3 Ra3 Qa4 Rc3 Rc8 Rc4 Rb8 Qbc5 Rb6 Re4 Rc6 Qb6 Rc5 Qdc6 Re5 Qd5 Re7 Kd4 Bc5+
Q1Qn4/1B1p3n/K1nPb2R/rp2N1B1/qB4r1/nn1P3P/Rb6/2b1N1bk w - - 0 1 illegal: No possible last move
2br2br/2Q1RnKn/4qb2/1pnb1P2/1Pn2p2/1Q3P2/r5Nk/QN3BRB w - - 0 1 legal: proof: h4 c5 e4 g5 d4 gxh4 b3 cxd4 Bd2 a5 Ne2 f5 Na3 a4 Bc1 f4 Nb1 a3 Bb2 axb2 Ng1 Qc7 Ne2 Qc5 Ng1 Qf5 exf5 Ra5 Be2 Ra3 Bf1 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 g4 d5 a4 h5 c4 h3 c5 Kh4 c6 d3 g5 d4 g6 d2 c7 h2 g7 d3 b4 Nf6 g8Q Nh7 a5 Bg7+ Kd5 e5 a6 e4 a7 e3 Nc3 b1N Ke4 e2 Ra4 e1N Qd8+ Bf6 Ra2 Nd7 Qf8 Ne5 Qc5 Na3 Qd4 Nac4 Qf3 d1Q Qb6 d2 Qa6 N1d3 Nb1 Qe2+ Kd4 Nc5 Qb3 Kg4 Nf3 h4 Ne1 h3 Ng2 d1R+ Rd2 Qe1 Rg1 h1B Qa1 h2 Kd5 Nf7 Rd3 Rc1 Re3 Rc2 Re7 Rb8 a8B Ra2 Bc6 Qe3 Bb7 Kh3 Bc6 Ba6 c8Q Ra8 Qc7 Rad8+ Qd7 Bc8 Ba8 Rdf8 Qc7 Bh4 Bb7 Ne4 Ne1+ Bg2 Rd7 Nc5+ Nf3 Qe2 Re7 Rfg8 Kd4 Rd8+ Bd5 h1B Ne1+ Kh2 Qd6 Bf3 Qc7 Nfd6 Bc6 Bh5 Bb7 Bf7 Bd5 Ne3 Ke5 Bg8 Bdg2 Ng5 Kf6 Nh7+ Kg7 Nf7 Bb7 Nc4 Bbg2 Qe6 Be4 Bg2 Ba8 Bh3 Bh1 Bg4 Ng2 Bf3 Qa5 Bd5 f3 Bg5 Qc7 Bf6+
4n2R/2bB3N/2rPr2N/1k1q1bBN/3Pb1r1/1nQn1R1p/2Pp1r2/1KQ2b2 w - - 0 1 illegal: No proof kernel
5r2/p1n3bb/2PkBnnR/4b1p1/1PQ2rq1/QN1nbNR1/P5r1/2K1Q1B1 w - - 0 1 illegal: No possible last move
1Rq2qR1/3NBQQ1/q2R1K2/1r1pq1n1/n2P1p2/2BP1b2/b1b3P1/b1Nk2r1 w - - 0 1 illegal: No proof kernel
1K3NR1/2BQq1b1/rRb2QPN/Q3n1Pp/6p1/1n2kq1q/Pr3n2/n2B2q1 w - - 0 1 illegal: No proof kernel
2Q1n3/2rrq3/1k4Pp/n1n2P2/3bpBBR/4RnBP/Qb3b1N/bK1q2N1 w - - 0 1 legal: proof: c4 g5 a4 d5 a5 dxc4 a6 bxa6 Na3 a5 Nb1 a4 e4 f5 Ra3 f4 Ra1 g4 f3 Bf5 exf5 gxf3 d4 Kd7 Kd2 Kc6 Kc2 a5 g4 e5 b4 f2 h3 h6 g5 a3 d5+ Kb6 g6 c5 b5 c3 d6 c4 d7 a2 Qg4 f3 Nd2 e4 Rb1 a1B Be2 f1Q Bd1 f2 Ngf3 a4 Qg2 a3 Ng5 a2 Qg3 Bc5 Ngf3 Ra7 Nd4 Qe7 d8B+ Rc7 Qd3 Nf6 N2f3 Nc6 Ne2 Na5 Neg1 Rh7 Qe2 Ne8 Bf4 Bb2 Rh2 a1B Rg2 Bd4 Rg4 Qe1 Bg3 f1N Nh2 Nd2 Rh4 Nf3 Rc1 Qd2+ Kb1 Bf2 Rc2 Qdd7 Rd2 Rf7 Rd3 c2+ Ka2 c1N+ Kb1 c3 Re3 Ncb3 Bf4 Kb7 b6 Nc5 Qc4 Kc6 b7 Rh7 b8Q c2+ Ka2 c1B Qc8 Rg7 Kb1 Bd4 Qa2 Kb6 Bg3 Bcb2 Be2 Qee6 Bg5 Qa4 B5f4 Rgd7 Bd1 Qe7 Be2 Ng5 Bh5 Nf3 Bg4 Qd1#
2q3b1/N1Rr4/NR3p2/3nnp2/2n3q1/1Qqb1PBR/2BnPPq1/QK3kr1 w - - 0 1 illegal: Other
1K1knq2/6b1/p1bbnp2/1PNq2N1/2q2BB1/1R3b1Q/2P2PQR/r1Bq2r1 w - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 e5 Ke3 h5 g4 b3 d4 b2 d5 h3 d6 h4 g5 h2 g6 h3 g7 Nd7 Bd2 Bb7 Qg4 Nc5 Qg2 Nf6 g8Q Bc6 Be1 Ne6 Nd2 b1Q Q2g3 Qa2 Q8g6 Rg8 Qf3 Qc4 Qfg3 Bg7 d7+ Ke7 Bd3 Ne8 Ra3 f6 Ngf3 Qc8 Q6g4 Kd8 Nb3 Qb8 Qg6 Qd6 Ng5 Qf8 Rg1 h1Q Be2 h2 Qh3 Qg2 Nc5 h1B Rb3 Qf3+ Kd2 Qh5 Bg4 Bf3 Rg2 e3+ Kc1 a6 Kb2 e2 Ka3 e4 Bd2 e1B Rh2 e3 Bc1 Bb4+ Ka4 e2 Qe4 Ba3+ Ka5 e1Q+ Kb6 Qd1 Qg6 Rc8 Ka7 Rc7+ Kb8 Rh8 Nge4 Qhd5 Ng5 Rh5 Nh7 Re5 Ng5 Re1 Qe4 Be2 Qeg2 Bf3 Na4 Bd6 Nc5 Rb7+ Ka8 Kc7 d8B+ Kc8 Bb6 Rh1 Ba7 Kd8 Bb6+ Rc7+ Kb8 Rf1 Ba5 Rg1 Bad2 Rb7+ Ka8 Re7+ Nb7+ Kc8 Nh7 Qe1 Ng5 Kc7 Bf4 Nd4 Bb2 Qd2 Bg3 Ree1 Bf4 Ra1 Bc1 Ne6 Ka7 Qd1 Nc5 Q5d4 Rb2 Kd8 Rb3 Be7 Kb8 Qe4 Qh6 Qed5 Qhh3 Bd6+
K2qrn1b/N3BbP1/2p1pNP1/1BPR4/rnNn1Rq1/5Q2/3n2Qr/k2r4 w - - 0 1 illegal: No possible last move, all moves rejected
2b3b1/2R3pq/1K5B/2pB2P1/1nR1P2R/4PN1q/bQNr2n1/1r1kqbqQ w - - 0 1 illegal: No proof kernel
nb3Nr1/1Q3bpq/R1PP1n2/Pr3RNb/2Qrp1k1/1q6/5B1r/Nb3K1B w - - 0 1 illegal: No proof kernel
3Q2K1/rr2qP2/3rkp1b/n1r1N2n/1QqqBp2/4P3/2R1R1P1/1Qq2bBN w - - 0 1 illegal: No proof kernel
1R2rN2/KQ2P3/B1P4r/2QP1r2/1Bnp1bpR/4bq2/rNbbB3/3q1nk1 w - - 0 1 illegal: No proof kernel
bq1b2N1/2RP1KQ1/1P1B4/1rrk1p1R/N4P2/b1bp1q1R/1rn2B2/n4Qr1 w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 g5 d4 e6 h4 gxh4 e3 Qg5 Bd3 Qf6 Be4 dxc4 d5 Qe7 d6 Qd8 Bd5 exd5 Ke2 Kd7 Kf3 Ke6 Kf4 f5 g4 c5 b4 a5 g5 h5 f3 a4 g6 d4 g7 d3 b6 h3 d7 h2 e4 h4 e5 c3 b5 h3 b7 a3 b6 c2 Bd2 c1B Qe1 c4 Qg3 c3 Qg5 c2 Qg6+ Nf6 Kg5 a2 g8R Ra5 f4 Nc6 b8B Nd4 Nc3 Bca3 Rg7 c1R Ne4 Bb7 Be3 Nb3 Bd6 Rb5 Rh7 Be7 Qg7 Ba8 Kg6 Kd5 e6 Qb8 Kf7 Bd8 e7 Ng4 e8Q Rc7 Bd4 Ne3 Rc1 a1B Ne2 B1b2 Qe7 Na1 Qh4 Re8 Qf2 Rc6 Qf1 Re6 Rg1 h1Q Rh5 h2 Rg3 Qf3 Rgh3 h1R B4c5 Rg1 N2c3+ Kc4 Na4+ Kd5 Rc4 Bc3 Bd4 Rc8 Rc6 Reg6 B4c5 R6g2 Nf6+ Kc4 Ng8 Rgb2 Bd4+ Kd5 Rc4 Nec2 Bf2 Qg4 Rc7 Qg2 Ra7 Rcc5 Rc7 Qf3
1rnQ2Nn/1nP2k2/1pB4P/1rRr4/1p1qR2P/2N1Q1Kn/1b3qbB/4r2Q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 f5 a4 d5 e4 g5 h4 g4 c4 b6 a5 d3 e5 d2 a6 d4 h6 d3 e6 f3 e7 g3+ Ke3 f4+ Ke4 g2 c5 f2 Kf3 Qd4 a7 Nc6 Na3 Bh3 Qc2 d1R Be2 f1N Ra2 d2 Qe4 Bg7 Bb2 Na5 c6 Ng3 c7 Nh5 Bb5+ Kf7 Qe3 Nb7 Ne2 Re1 Bc6 d1R Nb1 g1N+ Kf2 f3 Nf4 Rb8 a8Q Bg2 Ng6 Nf4 Kg3 f2 Ra5 f1Q Rc5 Ngh3 Nc3 Rd8 Rh2 Rd5 Qd8 Ra1 Qa8 Ra5 e8Q+ Kf6 Qd7 Rb5 Ne7 Kf7 Qdd8 Ng6 Rh1 Qf5 Rf1 Be5+ Rf4 Bf6 Re4 Qf1 Nf5 N8e7 Ba1 Nc8 Ne7 Rf8 Ng8 Nh8 Bb2 Qf5 Qa1 Re2 Qh1 Re1 Bc1 Qf1 Qd3 Re8 Bf4 Be5 Qe3 Qf2+ Kg4 Rf8 Bh2 Qdd2 Qdg5 Ne7 Nb1 Bb2 Nc3 Qd4 Qg3 Qf1 Q3e3 Rb8 Kg3 Nc8 Qd8 Qf2+
r1k2q1b/2PbPrPn/3BBR2/nN1NQ1n1/n5pq/K1p1R3/2Q1b1b1/7R w - - 0 1 illegal: No proof kernel
Rnq4r/PBq1q3/n3NB1P/2B2pbr/6Q1/1Rr1rP2/b2Q1p1k/3Kq1N1 w - - 0 1 illegal: No possible last move, all moves rejected
kB5R/P3bb1P/2n1p1NN/2n2q1r/1n2P2R/1Npr1bK1/3Qq2B/2n2Qb1 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 g6 h3 Bg2 hxg2 Bb2 fxg6 Ba3 g5 Bc1 g4 h4 Kd7 e4 g5 a4 b5 d4 c5 f4 Kc7 Kf2 Kb7 d6 c4 d7 c3 a5 g3+ Kf3 b3 f5 g4+ Kf4 b4 f6 b2 h5 b3 f7 Nf6 d5 Nc6 d6 Nd5+ Kg5 Ndb4 Na3 b1B Kf4 b2 h6 Ba2 Nf3 g1Q Nc4 b1N Nfd2 g2 Ne3 g3 Nf5 Qh2 a6+ Ka7 Qf3 Qa5 d8Q g1N d7 g2+ Kg4 Ne2 h7 g1B Qf1 Rg8+ Kf3 Rg5 Nh6 Rh5 Kg4 Qf2 Rh4 Bb3 Ra2 Bd1 Ra4 e6 Ra1 Be7 f8N Qb5 Kh3 Qff5+ Kg2 Qc4 Ng6 Rb8 Ra5 Rb5 Ra4 Rd5 Ra5 Kb8 a7+ Ka8 Rb5 Bd6 Qg5 Be7 d8B Bd7 Bc7 Be8 Bh2 Bf7 Rb7 Qa2 Rd7 Rd3 Rd8+ Kb7 Bb8 Ka8 Rh8 Qc2 Nf3 Qb2 Bcf4 Nd2 Bh2 Nc1 Nd4 Bf3+ Kg3 Ndb3 Qe3 Nc5 Nb3 Qc2 Qf4 Qd1 Qd2 Qe2
3bbbn1/Pk1b1P1r/8/1p1P1RrB/1N2q3/1r4RQ/nKQpQ3/2r1q1BN w - - 0 1 illegal: No proof kernel
B2Qr3/pb2n1r1/7B/PqRbN2P/qN3pr1/b1QN3P/n4K1k/R3r2b w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 gxh5 b5 d3 bxc4 Qc2 cxd3 Qb3 Qf6 Qd1 Qd8 a4 Ke7 e4 Kd6 b4 Ke5 h3 g5 a5 f5 b5 d5 b6 c5 b7 d2+ Ke2 f3+ Kf2 Kf4 e5 d4 e6 c4 e7 c3 e8Q g4 Qb3 d3 Qb6 c2 Qee6 Ba3 Qe1 Qg5 Qf6 Na6 b8N Rh7 Qh8 Nb4 Qf6 Rg7 Qg6 Ne7 Qd1 Na2 Bg2 g3+ Kf1 f2 Qf6 Bb7 Nc6 Re8 Bb2 c1R Qe1 d1Q Qf8 d2 Nb4 Qa4 Nf3 d1B Nbd2 Bb3 Ne5 B3d5 Nb3 Rc4 Be4 g2+ Ke2 Kg3 Nc1 g1R Ncd3 f4 Qc3 f1B+ Ke1 Rg2 Rh2 Rg1 Rc2 Bg2+ Ke2 Kh2 Kf2 Bh1 Qh8 Rb8 Qd8 Rg4 Bf3 Re4 Rcc1 Re1 Bg2 Bc4 Bc6 Bba6 Ba8 Bab7 Ng6 Re3 Qb3 Bf7 Qb6 Qgb5 Rc5 Rh8 Qd8 Rgg8 Bg7 Bfd5 Nge5 Re1 Bh6 R8g7 Qc3 Re8
2N1R1n1/p1qbp2P/B3nb2/k2KP1b1/2B3N1/qQ1P4/3nR2Q/q1b1rbB1 w - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 g5 bxa4 g6 hxg6 Ra3 g5 Ra1 g4 f4 g5 Kf2 g3+ Ke1 g4 Qb3 Na6 Qc2 Rh5 Qd1 Rg5 fxg5 Rb8 Bh3 Rb6 Bg2 Rh6 Bf1 Rh8 e4 Kd7 Ke2 Kc6 Ke3 Kb6 h4 c5 b4 f5 h5 c3 b5 f4+ Ke2 c2 g6 f3+ Ke3 a3 h6 c4 g7 a2 Na3 g2 Nh3 g1N Nf2 g3 Ng4 Bd7 Kd4 c3 Kd5 Ka5 b6 f2 b7 g2 b8Q Nf3 Nb5 g1B Qh2 Nc5 e5 Qc7 Nd6 Ne6 Ba6 f1B d3 Nd2 Nc8 Be3 h7 Bg5 Rb1 a1Q Rb8 Bf6 Bb2 c1Q Qb3 c2 Bd4 Qca3 Bg1 c1B Ra8 Nh6 g8B Bg5 Qh5 Bg7 Rh2 B7f6 Bf7 Rf8 Re2 Ng8 Qh2 Ba4 Be8 Rf7 Beb5 Rg7 Bc4 Bd7 Nd6 Rg6 Re8 Rh6 Nc8 Rh3 Rf2 Re3 Rg2 Re1 Rf2 Qb6 Re2 Qc7
3k1Bq1/3r4/1n1Q1Rr1/pr1BpP1Q/1nrPK1nR/1b4Bq/P5q1/2rN3N w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 h4 g5 Qb3 Bh6 Qf3 fxg4 Qd1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bb7 Be2 Ba6 Bf1 Bc8 Ke2 h5 Ke3 a5 f4 c5 d4 e5 b4 h4 f5 g2 g6 c3 b5 g3 b6 c2 g7 c4 b7 h3 Bd2 c1R Qe1 h2 Qe2 c3 Qb5+ Nd7 b8B c2 Nh3 g1R Qb6 g2 Qb5 Nf6 Be1 Rh7 Bc7 Rb8 Qb4 Rb5 Qc5 Nb6 Bd6 Be6 Bg3 Bb3 g8Q+ Kd7 Qg5 Qg8 Qb4 Kd8 Qh5 Rd7 Bf8 Ng4+ Kd2 e3+ Kd3 e2 Nc3 e1R Nd1 Re2 Rb1 Rf2 Qa3 Rf3+ Ke4 Rc3 Nhf2 Rc4 Nb2 Rd1 Bd3 c1N Qd6 Rdf1 Be2 Nd3 Bf3 Rfc1 Nbd1 Nb4 Rb2 Rf1 Rc2 g1Q Rc3 Qg2 Rc2 Rc7 Rc6 Rg1 Qe7+ Kc8 Rf6 R7c4 Qc5+ Kd8 Qd6 Nc2 Kd3 Qh3 Bd5 Nb4+ Ke4 Rg2 Re1 h1Q Re2 Qf1 Nh1 Rg1 Rh2 Ne3 Bf2 Rg6 Bh4 Ng4 Bg3 Qh4 Rh3 Qg5 Rh4 Qh3 Qh7 Qd2 Qh5 Qdg2#
Q6K/1R2Q2p/Pb5p/P1Rb1b2/1bN2Q1B/1qqr2q1/B2nN2P/3bkrr1 w - - 0 1 illegal: No proof kernel
5nn1/qK3RRn/4nN1Q/1nP2r2/b2rnpNq/1Np4n/B1P2P2/1Q4Bk w - - 0 2 legal: proof: e4 a5 d4 g5 h4 gxh4 e5 c5 e6 Bg7 Kd2 dxe6 Rh2 e5 Rh1 e4 Ke1 c4 b4 axb4 Kd2 Be5 Ke2 Bd6 Ke1 Bc5 dxc5 Bd7 Nh3 Bf5 Ng1 Bc8 Ke2 b5 Ke3 f5 g4 Kf7 a4 Kf6 a5 Kg5 a6 e5 a7 h5 Ra4 h3 Ne2 Kh4 g5 c3 g6 b3 g7 b4 Qd6 h2 Qc7 b2 Qb7 b3 Nf4 Nd7 Qc7 Nf8 Nd2 b1N Bc4 b2 Nh3 f4+ Ke2 e3 Kf3 e4+ Kg2 e2 Qb8 e1N+ Kf1 e3 Ke2 Na3 Be6 b1N Nb3 Nb5 Ng5 Bd7 Bg4 Nc7 Bf3 Na3 Qb5 Nce6 Rg1 h1N Bd5 Nf3 Kd3 e2 Ke4 e1N Be3 Qa5 Nf7 Kh3 Nh6 Kh2 Bd4 h4 Bf6 h3 Bh4 Rd8 a8Q Nfg5+ Ke5 Rh7 Kd6 Ng3 Qac6 Nef3 Rg2+ Kh1 Ng4 h2 Qb8 Qb5 Ra7 Nh3 Qbb6 Qa5 Qcb7 Nh6 g8N Rf7 N8f6 Nfg5 Q7c6 Ngh7 Qbb5 Nf1 Bg3 Nd2 Qca6 Be8+ Rd7 Ne4+ Kc6 Ng8 Kb7 Nb1 Qb4 Na3 Rc7 Ba4 Qbb5 Rg7 Rf7 Rg5 Qd6 Rf5 Qf1+ Ng1 Qb1 Nb5 Bc4 Ng6 Qf8 Rd4 Qh6 Ngf8 Nd2 Rd6 Ba2 Rd4 Nb3 Rd3 Ne5 Rd4 Bh4 Qb4 Rg5 Qa5 Neg4 Kg2 Rg6 h1Q Bg3 Qh4 Bh2 Nh3 Bg1 Kh1 Rgg7 Qa7+
2R3q1/p1QNn1kb/P1q3q1/4rqNq/QB3rBR/1P2r3/q1n1BpP1/3K4 w - - 0 1 legal: proof: f4 d5 c4 b5 e4 dxe4 h4 bxc4 Be2 g5 Bf1 gxf4 Rh2 Bh6 Rh1 Bg5 hxg5 Bf5 Na3 Be6 Nb1 Bc8 a4 Kf8 d4 c5 b3 f5 g6 e5 d5 h5 a5 f3 a6 f4 d6 f2+ Ke2 f3+ Kd2 c3+ Kc2 e3 d7 c4 Ra4 e2 Qd6+ Kg7 Be3 e1Q Bd3 f1Q Ra5 e4 Ra2 h4 Bf4 h3 Be3 h2 Qa3 Ne7 Qc5 Qef2+ Be2 Nbc6 Qb5 Re8 Bc5 e3 Qb4 Qg3 Bd3 e2 Be3 e1R Bg5 Re3 Ra5 f2 Na3 Qe2+ Kc1 c2 Qa4 Nb4 Nf3 Rf8 Rd5 Rf4 Rc5 Qg8 d8Q Bf5 Qc7 Re8 Bh4 Be4 Ng5 Qh3 Bg3 Qf5 Rc6 Qh5 Be2 Bd3 Bg4 Re5 Bh4 Be4 Kd2 c1Q+ Ke2 c3 Nc4 c2 Nb6 Qb2 Nd7 c1Q+ Rc2 Qe3+ Kd1 Qg3 Rc6 Qa2 Rc5 Kh6 g7 Nc2 Rc4 Qhg6 Rc3 Q8e6 g8B Qc6 Bc4 Kg7 Bce2 Bd3 Re1 h1Q Rc5 Qhh3 Rh1 Qgf3 Bg3 Qhh5 Rh4 Qfd5 Rc4 Re3 Rc3 Qg8 Bh2 Rb4 Bd6 Rf4 Rc5 Nc8 Rc3 R8e5 Bb4 Ne7 Qb7 Qce6 Rc8 Qc6 Qc7 Qff6 Nb8 Qg6e8 Rh3 Bh7 Rh4 Qf5 Nd7 Qeg6
4k2q/K1R1n2N/5r1p/PrQ3N1/1R1qB2P/nN3qBq/1P3p1q/1rb2qQ1 w - - 0 1 illegal: No proof kernel
4r3/b2prbrR/Q2Nq3/Q2r2Nq/1nqP3k/1BP4p/3NBRKP/2r1r3 w - - 1 2 illegal: No possible last move, all moves rejected
r7/B1P2Qn1/2R1RKnp/1n1Q2r1/2pPR3/rqPrN1nr/kN3b2/1q3B2 w - - 0 1 illegal: No proof kernel
1RB3Nb/2Q1R2r/b2K1q1p/3b4/Pn4BP/rrp1PNQ1/k6B/3bb1qr w - - 0 1 illegal: No proof kernel
brQq3r/Br1nN3/1R1qk3/1P1q3P/RpnpB3/2qB1KN1/1P3r2/Qq6 w - - 0 1 illegal: No extended proof kernel
1Nr1Qn1r/q1pQ2bq/p1PPq1b1/7q/5B2/PkqBR1b1/b1N5/B2KR3 w - - 1 2 legal: proof: f4 e5 b4 exf4 c4 h5 g4 hxg4 Qc2 Na6 Qd1 Nc5 bxc5 d5 Qc2 dxc4 Qb3 Ke7 Qd1 Ke8 h4 Ke7 d4 Ke6 e4 b5 c6 f5 h5 g5 e5 Kd5 e6 c3 e7 f3 e8Q a6 a3 g3 h6 b4 h7 g2 Qe3 f2+ Ke2 Kc4 d5 c2 d6 f4 Nc3 f3+ Kd2+ Kb3 Qee2 g4 Rh6 g3 Qe7 Nf6 Rh5 Nd7 Na4 Bg7 Nb2 Nf8 Nc4 Qe8 Qde1 Bf5 Nh3 g1B Qd1 g2 Qf6 Rc8 Bd3 f1Q Qd8 f2 Ng5 Bg6 Ne4 Qe6 Qe8 Bh2 Re5 g1Q Qg4 Bg3 Ne3 Qh3 Nf6 f1Q Nd7 Qff5 Nb8 Qhh5 Ke2 Qff7 Bd2 c1Q Nc2 Qg8 Bf4 Qa7 Re3 Qb2 Kd1 Qc3 Bf5 Ka4 Rb1 b3 Bd3 b2 Rc1 Kb3 Ra1 Qgf7 Rc1 Rg8 h8B Qh7 Qh3 b1B Qg4 Ba2 Qf5 Qd5 Qfd7 Qfe6 Ra1 Bh6 Bhe5 Rh8 Bd4 Bg7 Rc1 Qcc5 Ba1 Qcd4 Ke2 Qc3 Re1 Qdh1 Kd1 Q1h5+
B1r2R1q/3Np3/1QQq1q2/8/P2NK3/q1RrB1k1/pPRnPq1r/b2b2r1 w - - 0 1 illegal: Other
r7/2qr2PB/2qpRn1k/QN1P1R2/1q3P1q/p2Kn1B1/R3rN2/n2Q1bn1 w - - 0 1 legal: proof: b4 g5 e4 f5 h4 gxh4 a3 fxe4 a4 Bg7 a5 Bc3 a6 bxa6 b5 Bb4 c3 a5 cxb4 a4 Ke2 Kf7 d4 Kg6 f4 a5 g4 e5 g5 c5 b6 h5 b5 a3 b7 c4 b6 h3 Ke3 c3 Qe2 d6 Qg2 c2 Bb5 a4 Kd2 h2 Ra2 h4 Ke3 h3 Bd7 Nh6 Qe2 Ng4+ Kd2 e3+ Kd3 e4+ Kc4 Qc7+ Bc6 Rd8 Kc3 Nd7 b8Q Ba6 b7 Ndf6 Qf3 e2 Qa7 e1R b8R e3 Bd2 c1N Qd1 e2 Rb5 Rd7 Rf5 Ne3 Qc5 Kh7 g6+ Kh6 g7 Bc4 Qa5 Ba6 Rb2 a2 Na3 a1N Ra2 Bc4 Nb5 a3 Nf3 Bd3 Ne5 Bc4 Rf1 h1Q Nd3 h2 Nf2 Qd5 Rg1 h1Q Rg2 Qf3 Be4 Qh4 Bd3 Qfc6 d5 Rf1 Rgg5 e1Q Re5 Rh1 Re6 Rh2 Bh7 Bf1+ Kd4 Ne2+ Kd3 Rg2 Bc3 Rh2 Bd4 Qb4 Rf5 Bh3 Bc3 Ng1 Be1 Rg2 Ne4 Rh2 Bg3 Re2 Nf2 Bf1
5NR1/2P1N3/BKQq1pQ1/r1Pb2rb/qq1k1P1p/2n3br/5q2/B1RN3b w - - 0 1 illegal: No proof kernel
k7/2R1bP2/1B1Rnq1N/Pp1pqq1r/3nn1B1/r2K2NN/3PQ3/2r1rnQ1 w - - 0 1 legal: proof: e4 a5 c4 f5 b4 fxe4 h4 g5 c5 gxh4 c6 axb4 Bd3 b6 Bf1 Bb7 cxb7 Ra5 Nc3 Ra3 Nb1 Ra8 Ke2 c5 a4 e5 f4 d5 g4 Kd7 g5 Kc6 g6 h5 f5 b3 g7 b2 f6 c4 f7 b5 Nc3 b1Q Nf3 h3 Nh4 e3 Ng6 h2 Bh3 e4 Bg2 h4 Bh3 Nd7 b8Q Nc5 Re1 h1Q Be6 h3 Ra2 h2 Bf5 Ne6 Qd6+ Kb7 Qa3 Nf6 g8N Rh5 Ne5 Be7 Nh6 Qa1 Nb1 c3 Neg4 c2 Qd3 Qe5 Bb2 c1R Bd4 Qdd6 Nf2 Qf3+ Kf1 h1N Rc2 Qa6 Bg4 Qff5 Ke2 Ra7 Rc5 Ka8 Nh3 Qb6 Rf1 Ra5 Rc7 Ng3+ Ke1 e2 Nc3 Qc6 Bb6 Ra6 Rf4 Nf1 Qg3 Qcd6 Qg1 Qd8 Kf2 e1R Ne2 e3+ Kf3 Qh8 Ng3 e2 Kf2 Ne4+ Kf3 Nh2+ Ke3 Qhf6 Kd3 Nf1 Ba5 Rac6 Bb6 R6c4 a5 Ra4 Qb3 Red1 Qc4 e1N+ Ke2 Nc2 Kd3 Ncd4 Rf3 Qh4 Rf2 Re1 Rf3 Qh7 Rf6 Qhf5 Rg6 Nf8 Rd6 Nfe6 Qc2 Ra2 Qd1 Qhf6 Qe2 Ra3+
KR3r1R/1N5b/P1p4Q/nR3bQ1/BP3r2/2r4b/1BPnpbnN/n1nk4 w - - 0 1 illegal: No proof kernel
1Qb4K/4R2p/bbB1p1P1/1bPQbnR1/k3n2B/N1b4r/r2rP3/BN4r1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Bg2 Qa5 Bh3 fxg4 Bf1 g3 Nh3 g4 Ng1 Qg5 hxg5 Ra5 Rh3 Ra3 Rh1 Ra8 Kd2 b5 Kd3 d5 c4 Kd7 f4 Kc6 a4 e6 g6 g2 f5 g3 f6 b3 a5 b4 a6 b2 f7 b3 a7 Bb4 f8B Nh6 Na3 b1R Nh3 g1B Bd6 g2 Bh2 b2 Nf2 Nf5 Qd2 Rd8 Nc2 Na6 Qf4 Bc3 Na3 Nc5+ Kc2 Ne4 Bg3 Bh2 Kd3 g1B Bh4 Bg3 Qd2 Be5 Nd1 Kc5 Qg5 Kb4 Bg2 Ka4 Bd2 Be3 Rg1 Rc1 Ra2 b1B+ Rc2 Ba2 Rb2 Rb1 Rb7 Rb3 Re7 Bf2 Bc1 Rd6 Bb2 Rd7 Ba1 Rd8 Kc2 d3+ Kc1 d2+ Kc2 Rd7 Kd3 Bb6 c5 d4 Kc4 d3 Qf4 Bg7 Qb8 Bge5 Bf3 Rd6 Rg5 Bb1 Ne3 d1B Nec2 Ba2 Nb1 d2 Nca3 Bc2 Bg2 d1R Bf3 Neg3 Bh1 Be4 Bg2 Beb7 Bd5 Rg1 Kd3 Nh5 Ke4 Ba6 Bc6+ Bb5 Kf3 Nhg3 Kg4 Ne4+ Kh5 Ne3 Kh6 Rd2 Rh5 Nf6 Kg7 Nf5+ Kh8 Ne4+ Rg7 Rb4 Rg5 Bc4 Qc7 Rbb2 Qd8 Ra2 Qd5 Rb8 a8Q+ Kb3 Qb7 Ka4 Qc7 Rb7 Qb8 Rd7 Ba8 Rd3 Bc6 Rh3 Ba8 Bba6 Bb7 Bcb5 Bc6 Nf6 Re7 Rd6 Qg2 Rdd2 Qd5 Ne4+
1r2b1n1/4kq1B/Q1qr1n2/3pp1P1/2Q3BQ/1nNrKb2/p1R1PR1P/2b1N3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 g5 d4 gxf4 Be3 cxd4 Bf2 h4 Bg3 hxg3 Kd2 f5 c4 e5 b4 d5 b6 a5 g5 a4 b7 a3 c5 f3 c6 g2 b5 d3 b6 f4 c7 a2 Qb3 f2 Qa3 f3 Qa6 Ke7 Qa7 Qd7 Nh3 g1Q Qa6 Rh6 Ke3 d2 Nc3 d1R Rb1 Qc6 Rb2 Rd2 Nf4 Bd7 c8B Be8 Bg4 Nd7 b8Q Rd6 b7 Ndf6 Bfh3 Qf1 Qc8 Rb8 Ng2 Qc1 Nb5 f1B Nc3 f2 Ne1 Bg2 Rc2 Bf3 Rf1 Qd7 Qcc6 Qe6 Qcc4 Qf7 Rb2 Qc2 Bf5 Qa4 Bhg4 Qc6 Bh7 Bg2 Rc2 Bf3 Rh1 f1N+ Kf2 Ng3 Rf1 Nge4+ Ke3 Nc5 Rf2 Nb3 Be6 Rc8 b8Q Rcd8 Qbb5 Rb8 Bg4 Re6 Bh3 Kd8 Qh4 Ba3 Bg4 Bc1 Rf1 Rd6 Qc4 Ke7 Rf2 Rd3+
3R3n/2b2bqB/3K1NqP/1P5p/3pQR1Q/Nkb1R1BP/2pr1n2/5nrq w - - 0 1 illegal: No proof kernel
4b3/3B1bbQ/2B3pq/2p1P1n1/Qn2QpRN/P2q1rn1/k1N2P1K/3r1rR1 w - - 0 1 legal: proof: d4 a5 c4 h5 g4 hxg4 b4 d5 bxa5 dxc4 d5 e6 Be3 e5 Bd4 exd4 h4 Ke7 e4 Kd6 a3 Kc5 a6 b5 e5 f5 d6 g6 a7 d3 h5 d2+ Ke2 c3 h6 Kc4 d7 c5 h7 c2 Nh3 Kb3 Qe1 c1Q Bg2 d1R Kf1 g3 Kg1 b4 Qf1 Nf6 Ng5 Bg7 Bf3 g2 Be2 Na6 Bg4 Ne4 Rh4 Ng3 Nf3 Qh6 Kh2 g1N Qg2 Nh3 Nc3 Ng5 Ne2 f4 Rb1+ Ka2 Ned4 b3 Nc2 Rb8 a8B b2 Bc6 Nb4 Bh3 Ba6 Rg4 Bb5 Nh4 Rf1 Rc1 b1B Qe4 Rf8 h8Q Rf6 Qe8 Rd6 Qh8 Rdd1 Qh7 Rb7 Ne1 B1d3 Nc2 Bdc4 Rb1 Bf7 Rc1 Qc8 d8Q Qd7 Qa5 Qd3 Qa4 Rd7 Rb1 Rd4 Rc1 Rc4 Rb1 Rc3 Qh8 Qd8 Qh7 Rd4 Ba8 Bbe8 Bc6 Re1 Rd1 Rf3 Rb1 Nh5 Rg2 Rg1 Rf1 Rd1 Rg3 Qd2 Bhd7 Qd3 Rg4 Ng3 Re1 Ra1 Re3 Rgc1 Re1 Rcb1 Rh1 Rf1 Rg1 Rad1
k4n2/q1rQ4/B1NQ1p2/1Pq2QK1/bPpR1B1r/1bn2b2/2P2p2/R3nN1r w - - 0 1 illegal: No possible last move, all moves rejected
1QB1R3/N3r3/n1K1pNp1/P3Pqn1/np2B2r/bk1N4/1q1rRQP1/4q2b w - - 0 1 illegal: No extended proof kernel
2qQ4/4r2N/1brp1qQq/2bnQ1nn/Kr1RP2k/B4R1N/3PpPBp/8 w - - 0 1 illegal: No proof kernel
Q3KQ2/q4N2/2Bpr2N/B4BP1/5qRr/3bbPRn/p1r1Pnp1/1kq2n2 w - - 0 1 illegal: No proof kernel
B2r3b/nQ1R3B/1Pb1q2p/2PB4/p2NqQrP/rq3p1k/5nNb/4K1R1 w - - 0 1 illegal: No possible last move, all moves rejected
1NnNQ2R/2b1P3/rB2b1Q1/1pr1BP2/2qR1q2/1q3p1K/1Pn2rpn/4k1B1 w - - 0 1 illegal: No proof kernel
1qb2N1q/2r1pk1K/1Rn4B/Q2p1n1N/1PB1bQ1Q/6rp/RPP1r3/4b2n w - - 0 1 legal: proof: h4 c5 e4 g5 d4 cxd4 a3 gxh4 e5 b5 e6 b4 axb4 fxe6 Nf3 e5 Ng1 e4 Kd2 a5 g4 h5 f4 d5 g5 a4 f5 d3 Ke3 d2 Kf4 e3 f6 e2 g6 e1R Kg5 a3 g7 a2 Kg6 h3 Ne2 h4 Nbc3 h2 Nf4 h3 Nce2 Ra7 Nh5 Rc7 Nd4 Nc6 Ne6 Re2 Qe1 d1B Rg1 h1N Qh4 Nh6 g8Q Nf5 Bh6 Rh7 Qh8 Qd6 Qf4 Rf7 Qh7 Bg7 Nf8 Qe5 Qh8 Qd4 Kh7 Qb6 Rc1 a1Q Rg6 Qa8 Ra1 Qbb7 Ra2 Qbb8 Nd7+ Rf8 Qh4 Rg8 Nf8 Kf7 Qf4 Re1 Bc4 Bf3 Qh4 Be4 Qf4 Ke8 Qh4 Re2 f7+ Kd8 Re6 Bc3 Qd4 Rg4 Qa7 Be1 Qa5 Rg3 Rg6 Ne5 Rb6 Nc6 Ne6+ Kd7 f8Q Kd6 Qf7 Kd7 Qff6 Ke8 Qe5 Kf7 Qef4 Qba7 Nf8 Q8b8 Rb5 Qd4 Rb6 Qh8+
q2K1N2/Qr1P1P2/r2b3B/4bR2/qq3Q2/p3Bp1P/npB1nRN1/n2b2k1 w - - 0 1 illegal: No proof kernel
6Bk/3p1Q2/p4q2/p7/NPb1Pn1P/r2bb1K1/R2nRNrn/2Bq1rNQ w - - 0 1 illegal: No possible last move
3r3N/2P2nK1/1rbbRbn1/1pP1Rpn1/Q5N1/1B2q2p/1PB2q2/2kq2QN w - - 0 1 illegal: No proof kernel
Qnb2k2/1BP4P/5pK1/pq3N1Q/N6p/PRnr4/1qb1rbN1/q1Rn3B w - - 0 1 illegal: No proof kernel
Qrb1K2k/b1p4p/2n5/1PP3q1/B2PrRr1/1p1Q1N1R/2n2q1N/qQnB4 w - - 0 1 illegal: No proof kernel
r2nQ2R/b1pbPR2/P2kq1b1/2p2B2/BQ2qpKr/1P5N/5q1B/2N3nn w - - 0 1 illegal: No proof kernel
3bq3/rKpp2N1/Q1Q1q1pB/1R4N1/1rPP2Q1/n2b1PB1/6q1/n1R1b1nk w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 g4 gxh4 g5 Bg7 g6 Ba6 Bc4 Bf8 g7 Bb7 Be6 Ba6 Bf5 Bc8 Bg6+ hxg6 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 Kf4 d4+ e3 b4 a5 c3 e5 b6 h3 b7 e4 f3 Kg3 b5 Kg2 b6 a4 Ne2 a3 Qa4 h2 Ng3 e2 Nf5 e1B Qa6 e3 Nd2 e2 Rb1 a2 Ne4 a1N Rb5 Ne7+ Kc5 Nbc6 b8B Nb4 g8Q Qe8 b7 Nbc2 Ng5 Na3 Ba7 Rh5 Rf1 h1Q b8Q Qg1 Qa2 Kh1 Qbb6 Nd5+ Qd6 Bg7 Qdc6 Bf6 Ng7 Nf4 Qae6 Nh3 Qg4 Bd8 c4 Bb7 Bf4 Rh8 Bg3 Rf8 Qce6 Be4 Qec6 Bd3 Bb6 Rg8 Ba5 Rf8 Bd2 Rf6 Rf2 Qg2 Rf1+ Ng1 Kb4 Rf8 Ka5 Rh8 Qa7 Rf8 Ka6 Rf5 Kb7 Rd5 Rb6 Rb5 Qa6 Rb4 Bdf4 Bd2 Rd1 e1Q Rc1 Q1e6 Rb5 Bc3 Nh7 Bd2 Bh6 Be1 Ng5 Ra7+
kn3N2/P1n3q1/2qp4/BqR5/1pbnr2N/3K1QNb/1bB1PP1p/RQr5 w - - 0 1 illegal: No possible last move, all moves rejected
2R1K1RN/1n3n2/p1NQ2q1/3b1Q1b/1r3Bpb/1bPb1rr1/PP3Qp1/k5B1 w - - 0 1 legal: proof: f4 h5 d4 b5 g4 hxg4 d5 e5 fxe5 b4 c3 b3 Bg2 c6 Bf3 cxd5 Be4 d4 Bc2 bxc2 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 g5 e4 d5+ e6 g3 e5 g2 h5 a6 h6 d3 h7 d2 Rh6 d4 Rf6 d3 Qf3 d1B Be3 c1R Bf2 d2 Qg3 Be7 Rh6 Qd6 Nf3 Bb3 Nh4 d1B Bg1 Bh5 Ng6 Bb7 Qf2 Rf1 Nd2+ Kd3 Nc4 Bd5 Na5 Nd7 Nc6 Nc5 Rc1 Bd8 e7 Nb7 e8Q Rb8 e6 f6 Qf8 g4 Re1 Be7 Re2 Bd8 e7 Qe6+ Kf4 f5 e8Q Bh4 Qc8 Qf7 Ke5 f4 Qd6 f3 Qce6 Qe8 Re4 Qf7 Rc4 Qe8 Qa7 Kc2 Qf2+ Kb1 Rc5 Qf7 Qf5+ Ka1 Rc4 Ne7 Rc5 Nc8 Rc4 Rf8 Nh8 Qg6 Rc5 Rd1 Rc4 Rd3 Rc5 Qg5 Rg6 Rf7 Rg8 Qg6 Qe2 f2 Qd2 f1B Qdf2 Rf3 Rc4 Bd3 Rc5 Qg5 Rc4 B5e4 Ke6 Rf8 Kd7 Qg6 Rc5 Rg3 Rc4 Rf7+ Ke8 Bd5 Nd4 Nb6+ Rc8 Nc4 Nc6 Rf6+ Nf7 Ne5 h8B Nc5 Bg7 Rb4 Bh6 Nb7 Bf4 Rh3 Ke7 Rg3 Nh8 Nf7 Ke8 Re6+ Qe7 Ree3 Qee6 Ref3 Qee5 Kb1 Qd6 Ka1
1Q1N4/3bP1pP/2R3N1/BKP1p2r/1R2r1Qr/1Nnp1r2/1qr1n3/1b2k1bB w - - 0 1 illegal: No proof kernel
1Nk5/1pr3pB/R4bnn/r1q5/nK2B2r/1P1bB1R1/1Q1rPPp1/r2N2Q1 w - - 0 1 illegal: No proof kernel
7k/p3rBnN/1qRb3K/5Nnb/nBNrp1r1/2QPRPQ1/rp5P/3r4 w - - 0 1 illegal: No proof kernel
4b3/p1qnk1r1/4P2p/B1pP2N1/2n5/Q1P2nQ1/N2RKnBr/R1b1rnR1 w - - 0 1 legal: proof: h4 d5 f4 b5 a4 g5 axb5 gxh4 c3 e5 Qc2 exf4 Qa4 d4 Qb3 d3 Qc2 dxc2 b4 c5 e4 f5 d4 f3 g4 h3 e5 f2+ Ke2 h2 b6 f4 e6 Qc7 g5 Bd6 d5 Nc6 g6 Kf8 b7 Ke7 b8R Ne5 b5 Nc4 b6 Bd7 b7 Be8 g7 Nf6 g8Q Nd7 Ba3 c1R Nd2 Rd1 Bg2 f1N Ne4 Nfd2 Bb4 Nf3 Qg3 Rg8 Ng5 Rg7 Ba5 h6 Rc8 Rb8 Ra2 Be5 Rd2 Bd4 Rd8 Be3 Rc8 Bh5 Rg8 Be8 Rd4 Bc1 Rd2 Rc8 b8Q Rd8 Qb7 Rb8 Qb1 Rb2 Qa2 Rc2 Qa3 Ra2 N1h3 Rc2 Rg1 h1N Nf2 Rb2 Nd3 Nf2 Re1 Rb4 Bh1 Ne4 Rh8 Nfe5 Rf8 f3+ Kf1 Rb2 Rf2 Be3 Rf6 Rc1 Nb4 Bf4 Re2 f2 Na2 Bd2 Rf4 Ra1 Rh4 Nf3 Rh2 Rab1 Rg2 Bf4 Rg1 Rd2 Kg2 f1N Rc1 Rbb2 Ra1 Rd1 Rc2 Nef6 Kf2 Ne4+ Ke2 Bd2 Kd3 Bc1+ Rd2 Re1 Rd1 Rh2 Rd2 Rd1 Bg2 Nf2+ Ke2 Re1+
1nR1BBK1/Q1n1qN2/r6p/NP2Q1Pb/p1r2R1P/kr1Bb3/1p3r2/3nb3 w - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Kf2 Kd7 h4 Kd6 c4 Kc5 g4 f5 d3 a5 g5 e5 Nd2 e3+ Kf3 a4 Qc2 e2 Bb2 e1R Rc1 b3 d4+ Kb4 c5 h6 d5 Nf6 c6 Bc5 d6 Nd5 d7 Be3 c7 Qe7 d8Q Ra6 Qd7 Rg8 Bd4 b2 Nb3 Ka3 Na5 Rd1 Qf2 Rd3 Qe1 Rb3 Bd3 Rgg6 Rh2 Rgc6 Rf2 Rc4 Rcc2 Bb7 c8B Ba8 Bb7 Nc7 Bc6 Bb7 Bb6 Bc8 Qd4 Be6 Be8 Bf7 Ne2 Bg6 Ng3 Bf7 Ne4 Bh5+ Kg2 f3+ Kh3 f4 Nd6 e4 Nf7 Qb4 Rf1 f2 Bc5 f3 Bf8 Qd6 Qa7 Qe7 Rg1 f1R Rg4 f2 Rf4 Rh1+ Kg3 Rh2 Qc3 Rg2+ Kh3 f1N Qe5 Rf2 Rc3 Bg6 Kg4 Bh5+ Kf5 Bb6 Qh8 e3 Qe5 e2 Rc1 e1B Rc3 Bd1 Kg6 Bh5+ Kh7 Ne3 Kg8 Nd1 Rc1 Be3 Rc3 Rd4 Rc5 Rc4 Rc6 Ne6 Rc8 Nc7
1R1b4/rn5b/kN2QPPQ/rNbn3P/4brp1/5q1p/2np2BB/1K2N2R w - - 0 1 illegal: No proof kernel
3QB3/3b4/2p1Nbqr/n3BB1P/b2R3P/n2p1nNP/kr3KpQ/r1n3R1 w - - 0 1 illegal: Other
r3R1K1/b1b3B1/PPpp2Qn/r2pnn1q/7N/3b1r1Q/k1PN4/rR1B3R w - - 0 1 illegal: No proof kernel
3Br1nk/1B3n1P/4rn2/3R1R1N/q1N1QbP1/1Prpp1Qp/4bR2/b2bK3 w - - 0 1 illegal: No proof kernel
RQB4r/N3knP1/nrQ4B/1p5N/1bqp1Pp1/1n1R3b/1b2NPKb/5r2 w - - 0 1 illegal: No possible last move
n1NQ4/4qPR1/pP3r2/r1p5/N2Kn1Rb/bbnP1Rr1/1BBQ2p1/2b3k1 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kf7 Ke3 Kg6 f4 Kh5 b4 Kh4 d3 e5 f5 g5 b6 c6 f6 g3 f7 g2 h3 Kg3 h4 g4 b5 c3 b7 c2 h5 Nd7 b8Q Nb6 h6 Qe7 h7 Nf6 Nh3 g1N Qd6 Rg8 h8R Be6 Rh2 Bb3 Nc3 Ne2 Nb1 Nc3 Bd2 c1B Be2 Rg7 Rh1 Kg2 Qd8 g3 Rg1+ Kh2 Ra4 g2 Rf1 Rg4 Qc2 Rg3+ Rf3 Kh1 Ng5+ Kg1 Rh3 a6 Ne6 Rb8 Bd1 Na8 Nf4 Rb7 Rh6 Rd7 b6 Rd5 Rh3 Ra5 Rh7 Qe6 Qb8 Bfa3 Rg7 Qe7 Qd8 Ncd5+ Ke2 e3 Bc3 e4 Bb2 Nc3+ Ke1 e2 Ng6 Kh1 Kf2 e1R Qd2 Rf1+ Ke3 Kg1 Kd4 e3 Bc2 e2 Rc4 e1B Ra4 Qe6 Ne7 Nfe4 Nc8 Qe7 Rc4 Rgg5 Ra4 Bh4 Rc4 Rg3 Rb4 Nd1 Nc3 Rf2 Na4 Ndc3 Rb5 Rf1 Rbg5 Rf2 Rg4 Rf1 Re3 Rf6 Rf3 c5+
1r6/bbn2pPq/2Q2p1r/2R1Pr1k/BN4n1/1b1KN2n/Pp5N/QR2Bb2 w - - 0 1 legal: proof: f4 d5 b4 g5 c4 a5 cxd5 axb4 h4 gxh4 f5 Kd7 f6 exf6 Na3 Ke7 Nb1 Ke8 d4 c5 Kd2 h5 g4 b5 e4 b3 d6 c4 d5 b4 g5 h3 e5 b2 g6 h4 Kc2 h2 Bh6 h3 Bg7 b3+ Kc3 Bb7 Ne2 Na6 Nd2 b1B Nc1 b2 Nd3 Rb8 Qc2 Nc7 Nf4 Nh6 Ng2 Ng4 Nf3 Rh6 d7+ Ke7 d6+ Ke6 Qd1 Bc2 Rc1 Kf5 Ne3+ Kf4 Rg1 h1N Nh2 Kg5 Be2 Qc8 d8N Bb3 d7 Bc5 Bf8 Kh5 g7 Nf2 Nc6 Ba7 d8Q Qf5 Q8d7 Qh7 Nb4 Bg2 Kd2 Bb7 Bf1 c3+ Ke2 Bg2 Qc6 c2 Rb1 c1R Bd6 Ne4 Kd3 Rc2 Rc1 Rf2 Rc5 Rf5 Qa1 Ng5 Be2 Bh1 Rb1 Bg2 Nf3 h2 Bd1 h1B Nh2 Nh3 Be7 Be6 Ba4 Bb3 Bd8 Na8 Ba5 Nc7 Qb6 Bb7 Qc6 Bhd5 Na6 Bf3 Be1 Bg2 Nb4 Bf1+
1n2NK1b/2P5/qn2P1bb/rQ1R3B/3p1B1N/2P1Br2/1rpQ2p1/kn4Rr w - - 0 1 illegal: No proof kernel
3Q1nb1/1BpQn3/r1Pb2R1/qp1n4/P1P3Rb/2N2n1r/3kp1B1/KB2Nr2 w - - 0 1 illegal: No proof kernel
4N1bb/2p2rp1/rQKQqR1n/3BP3/1b3pR1/r1Q1bP1N/3nP2k/2n4B w - - 0 1 illegal: Other
R4Q1q/ppb4n/P2PNnk1/2B4N/2P2rB1/r3prbQ/n2R1N1K/2r1b3 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 c5 Ke1 cxb4 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 f4 Kf7 a4 e5 d4 h5 c4 h4 d5 e3 g5 e2 d6 b3 a5 h3 f5 h2 a6 e4 f6 b2 Ra5 Nd7 Nh3 g1R Nc3 b1N Qd3 g2 Kf2 Kg6 Kg3 e1B+ Nf2 Rh4 f7 Ngf6 Ne2 Rf4 Ra2 Nh7 Rd2 Nc3 Nd4 Ndf6 Be2 Na2 Ba3 Be7 Bc5 Qh8 Bg4 Rf8 Ne6 Rf1 Qa3 g1B Qf3 Rg8 f8Q Bd8 Kg2 Bc7 Qh3 Rf3 Nd1 Bd4 Nf2 Ra3 Rg1 e3 Kg3 h1R Rg2 Rhg1 Kh2 Ne8 Rg3 Bf6 Rf3 Bfd8 Rf7 Rg7 Rd7 Be7 Rd8 Rf7 Ra8 Rf4 Qfh6+ Kf7 g6+ Kf6 g7+ Kf7 g8N Nef6 Nd3 R1f3 Qf8+ Kg6 Nf2 Ne8 Ng7 Bh4 Nf6 Rf1 Nfh5 Nef6 Rd4 Bc3 Ne6 Rc1 Rd5 Be1 Rd2 Bg3+
1B1B2q1/1BR5/Pb1q1nk1/K3Q1P1/ppbPNQ2/2R4p/b4b1n/rr2N2b w - - 0 1 illegal: No proof kernel
b1B3rb/4k1bP/pnB1rb1R/6nb/RK2N2p/2p4P/2P1QQ1q/q3NB2 w - - 0 1 illegal: No proof kernel
1rr1b2Q/K1b2n2/B3r3/2nqq1b1/PRp2BN1/BRppPP2/1NQ5/1b4k1 w - - 0 1 illegal: No proof kernel
1r2n2b/1NR2Bnk/1BN1K1Nq/5P2/nP3Ppr/Q2q2np/4Qpb1/R4q2 w - - 0 1 illegal: No proof kernel
1q1bk3/3r1n2/2r2B1Q/2Q1P3/p3B1bK/pPb1R2R/1rrP1N1p/1q3RnN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 h5 e4 c5 g4 f5 d6 a5 b3 h3 e5 f3 Kg3 c4 g5 f2 g6 c3 g7 a3 Bd3 f1Q Qg4 a4 Qe4 c2 Rh2 Rh7 Bb5+ Nc6 Bd3 Nd4 Re2 h4+ Kh2 f4 Qe3 f3 Be4 f2 Re1 Bg4 Qh6 Be7 Re3 Qb8 Nc3 Bd8 Bb2 c1B Nd1 Ra6 Bc3 Bb2 Ba5 Rc6 Ne2 Bc3 Ng3 Ne2 Nh1 Ng1 Rc1 Qe1 Bb4 f1R Ndf2 Qd1 Ra1 Qb1 d7+ Kf7 Bf8 Rc1 Be7 Rc2 Bf6 Rb2 Qg5 Nh6 g8R Rg7 Rh8 Rc2 Rh7 Kf8 Qg6 Nf7 Qh6 Qb2 Rf1 Qb1 Ng3 Rb2 Kh1 h2 Kg2 Rc2 Ngh1 h3+ Kg3 Rb2 Kh4 Rc2 Ng3 h1R Qh5 Rh2 Ngh1 Rg2 Qh6 h2 Nd1 Re2 Ndf2 Rb2 Bd3 Re1 Be4 Ng5 Rh8+ Kf7 Rh7 Rc1 Rh8 Rcc2 Rh7 Bb6 d8Q Bba5 Qd5+ Ke8 Qc5 Bd8 Rh3 Ra7 Rd7 Rac7 Rdd3 Rd7 Rde3 Nf7
2B1n3/QRb3N1/2R4q/1P2Bp2/1pnNr1qp/1n1K1Rqk/1P3r1P/1Q3n1b w - - 0 1 legal: proof: e4 b5 f4 g5 a4 gxf4 axb5 d5 Qh5 dxe4 Qc5 c6 Qa3 c5 Qb4 cxb4 Ke2 Kd7 d4 Ke6 g4 a5 c4 h5 c5 e3 c6 h4 g5 Kf5 g6 Kg4 d5 e5 c7 f3+ Kd3 f2 d6 a4 d7 e2 g7 e1Q Ra3 e4+ Kd4 e3 Nd2 e2 Kc4 Bb7 c8Q Qf6 d8R+ Nd7 Rb3 a3 Ngf3 a2 Qb8 a1N Re3 Bd6 Kd3 Nb6 Nd4 Nb3 Rf3 Qh6 Ne6 Nf6 Qa7 Qd1 Rd7 e1Q Be2 Bg3 g8Q+ Kh3 Qg6 f1N Ng7 Nc4 Rc7 Bc6 Rb7 Rhf8 Qh7 Ne8 Qg6 Nfe3 Rhf1 Bd5 Rf6 Qf2 Rc6 Bc7 Bf3 Qg3 Bg4+ Kg2 Rf4 Nf1+ Rf3 Rd8 Bd7 f5 Bc8 Kh3 Qe6 Rf6 Qe1 Re6 Re3 Nba5 Kd4 Qdf3 Nb3 Qd1+ Bd2 Qdf3 Bc3 Rdd6 Qb1 Qfg4+ Kd3 Bf3+ Kc2 Re4 Be5 Bh1 Rf3 Rd3 Nd4 Nb3 Re3 Rd1 Rf3 Rde1 Kd3 R1e2 Qd1 Rc2 Qb1 Rf2
q3BBn1/R6N/3RKqp1/1P1R3p/q4pr1/r1bQPP2/b3bk1b/2Q2Nn1 w - - 0 1 illegal: No proof kernel
3n4/1r6/1qRNp1BP/r6P/1n2n1qp/PK1RB3/N3QQpr/kBbb2n1 w - - 0 1 illegal: No possible last move, all moves rejected
3K1k2/4q1n1/Pp1BQN2/RrR1pBq1/p2Pb2q/3N4/2P2R1n/r2nbQ1q w - - 0 1 illegal: No possible last move, all moves rejected
NqBb3Q/2q4P/4b2k/r1NQ1nrn/1qR1bPBp/1R2bpp1/6P1/5N1K w - - 0 1 illegal: No proof kernel
2QR1K2/k1N2q1p/r3Q1br/pn6/b1Rnr2n/pN6/PnqP1P2/5NBB w - - 0 1 illegal: No proof kernel
2N4k/QnrbK1np/nP1RQ3/N1pq4/1P1bPn2/q1Q3R1/4pB1r/1r3B2 w - - 0 1 illegal: No proof kernel
K3Q3/3n1Np1/Nb1pRpQ1/1B1P1NB1/4nr1P/br1Rb3/Pn3bk1/q5q1 w - - 0 1 illegal: No proof kernel
bb5K/1Q3P1R/q1r2P2/1Np2Pp1/1p2q1B1/r1B1knnB/3bb3/N2n1QR1 w - - 0 1 illegal: Other
r3b3/5Pbn/BP1BNN1k/R1Qq4/pbR1p3/1q4bn/1RrPp2n/1Q1K4 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kf7 g4 Kg7 b4 a5 f5 e5 g5 c5 b6 h5 b7 e3 g6 a4 b5 e4 b6 c3 f6+ Kh6 g7 c2 f7 c4 Nh3 c3 Rg1 Qd5 Ba3 c1B Rh1 c2 Ng1 h3 Ke2 h2 Bb4 h4 Nc3 h3 Nb1 Ba3 Be7 c1B Bf6 Bcb2 Qe1 Nc6 b8R Bd7 Be5 Nf6 g8Q Bg7 Qf8 Nd4+ Kd1 Nf3 Nc3 Be8 Rb1 Bb4 Ba6 Nh7 Nge2 Rg8 Rf1 h1Q Qc5 h2 Bd6 Qg1 Rf2 h1N Nf4 Nh2 Ne6 Qgg5 Rf5 Qb3+ Ke2 Nf2 Nd5 Bbe5 Nf6 Nh3 Rb2 Rh8 Rc8 Bg3 Qb1 Rg8 Qcc2 Rf8 Ra5 Qgd5 Rc4 Rc8 Rd4 Rc3 Rc4 Rh8 Qcc1 Rc2 Kd1 Bc6 Qa2 Ra8 Qcb1 Be8 Qa3 Qa2 Qc3 Qa3 Qd4 Qb3 Qc5 e2+
R2NQ1Bn/BKb2P2/1pp2pQ1/Pn6/4n3/krPb2qR/2Rr3q/5qnN w - - 0 1 illegal: No proof kernel
1nqB2b1/2N2Pp1/PpQ2Q2/1nK3bR/r1bp2B1/1RrbQ3/1r1P1N2/2k4q w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 c5 g3 cxb4 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Kd5 b5 f4 b3 a4 b4 c4 e4 h4 g3 c5 e3 a5 b2 c6 b3 c7 g2 h5 e2 a6 e1Q h6 Ne7+ Kc5 d5 h7 d4 Rh3 Be6 c8Q Bg8 Na3 b1B Qf3 b2 Qe3 Bd3 Rh5 b1B Nh3 g1R Nf2 Bba2 Bh3 Bac4 Rb1 Qd1 Qc7 Qc8 Nb5 Qe1 Bg4 Nd5+ Nd6 Qf1 Ba3 Nc3 Qc6 Nb5 Rb3 Be7 Bb4 Qh3 Ba5 Ra1 Bc7 Qh1 Bd8 Qd7 Qb6 Ra4 Qc6 Bgd5 Qb6 Qc8+ Qc6 Rf8 h8Q Rf7 Qe8 Rf8 Qd7 Bg8 Qb7 Rf7 Ba5 Bd8 Qb6 Rb7 Ne8+ Kf7 f6 Kg6 f7+ Bf6 Nd6 Bg5 f5+ Kf6 Nfe4+ Ke5 f8Q Rc7 f6 Rb7 Qe1 Kf4 Ne8 Rc7 Be6 Kf3 f7 Rb7 Qd6 Rc7 Qg1 Ke2 Qe3+ Kd1 Nf2+ Kc1 Bg4 Bf5 Qb7 Bce6 Rb4 Bd3 Qde5 Na3 Qf6 Nd7+ Kd6+ Bc2 Qg2 Rb8 Qb5 Rc3 Bd8 Bd3 Nc7 Bec4 Qgc6 Rb7 Qa5 Nb8 Kc5 Rb6 Rb2 Rbb3 Qab6 Nb5 Ra2 Rb1 Ra3 Rb2 Rb3 axb6+
1r1n1QbQ/2n1Qpq1/q7/1NP1pr2/2N3B1/B3rq1p/KPk1Pr1R/3b2R1 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 a4 cxd4 g5 Bh6 g6 Bg5 hxg5 bxa4 Kd2 e5 c4 Ke7 Kc2 Ke6 c5 Kd5 g7 Kc4 g6 h5 Rh3 d5 Be3 a5 Bd2 a3 Bb4 d3+ Kc1 a2 Qe1 Kb3 Nf3 a4 Rh1 a3 Nc3 h4 Nb5 h3 Nh2 d4 Rb1 a1Q Nd6 d2+ Kd1 a2 Rg1 f3 Nf5 f2 Ng4 Ne7 g8Q Nd5 g7 Nc6 Nh2 Qg5 Ne7 Nd8 Rh1 Rh5 Ba3 Nc7 Ng4 Rb8 Qh8 Bf5 g8Q Bh7 Nf5 Qg7 Bg2 f1Q Nd6 Rf5 Ne3 Qf3 Qf8 Bg8 Rc1 Qb1 Rh2 a1R Nec4 Qa2 Nb5 Rb1 Bb4 Qa6 Qeh4 Ra1 Rb1 Ra3 Bh1 Ka4 Kc2 d1B+ Kc1 Kb3 Qhe7 d3 Ra1 d2+ Kb1 Ra5 Ba3 Ra4 Nb6 Re4 Nc4 Re3 Bb4 Qfg3 Bf3 Qf2 Bg4 Qf1 Ra4 Qf3 Ka1 Kc2 Ka2 Rg5 Ra5 Rf5 Ba3 Re4 Qe6 Qc3 Ka1 Ref4 Qf6 Rf2 Na7 Qf3 Rb5 Qa8 Rb3 Qh1 Rg3 Qf3 Q6e7 Kc1 Qeh4 Bb3 Qf6 d1R Nb5 Rd3 Q6e7 Bd1 Ka2 Kc2 Rg1 Re3
BQN2Rq1/1B1RP1Q1/K7/2p1b1rN/bp6/qnPP2n1/1p1rkqB1/n6n w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 b4 axb4 e4 d6 Bb2 exf4 e5 Nf6 e6 Ng8 Be5 dxe5 Ke2 Ke7 g4 Kd6 Kd3 Kd5 a4 h5 g6 c5 g5 b5 a5 f5 e7 h4 g7 f3 g6 h3 a6 f4 a7 f2 c3 f3 Qa4 e4+ Ke3 h2 Qa5 b3 Na3 b2 Ra2 b4 Be2 f1Q Qa6 f2 Nb1 Rh5 Nh3 Rg5 Qb6 Nh6 Na3 Bd7 Nb5 Nc6 Nd6 Qa1 Ba6 f1Q Nc8 Na5 Qb8 Nb3 Bb7+ Kc4 Nf4 Ba4 g8B+ Qd5 Bf7 Bg7 Nh5 Be5 g7 Qg2 Rf1 h1N Bg6 Qg8 Rf8 Qgg1+ Ke2 e3 Bge4 Nf5 Bg2 Nfg3+ Kf3 Qh7 g8Q+ Kd3 Qg7 e2 Ra3 Qg8 Ra2 Be8 Ra6 Qa3 Rd6+ Qd4 Rd5 Ba4 Rd6 Kc2 Rd7 Qh4 Ke3 Kd1 Kd3 e1N+ Ke3 Nc2+ Kd3 Ncd4 Qc7 Rb8 a8B Nc2 Qd8 Nca1 Qb6 Qh8 Qd8 Qh2 Kc4 Ke2 Qc7 Qg1 d3 Qf2 Bbe4 Rb6 Beb7 Re6 Qb8 Qg8 Rd5 Be8 Rd7 Rf6+ Kb5 Rf4 Kb6 Rfg4 Rc7 Ba4 Ka6 Rh4 Rd7 Rh2 Bge4 Rg2 Bec6 Rg1 Bd5 Rd1 Bg2 Rd2
b2B2k1/RbN1prq1/3Q2Bq/PnN4N/rrR2P2/1q1KPQ1n/p3p3/q7 w - - 0 1 illegal: No proof kernel
1N1Q4/k1rqp1Bn/P4n2/P2Rpbnr/B2b2p1/n1K3B1/P4qRN/Q2q4 w - - 0 1 illegal: Other
1N1r2r1/K3pp2/rQ4RP/q1B3pk/1Q2Pb2/1n1N3b/1P3Rb1/B1q1b1nQ w - - 0 1 illegal: Other
5nq1/B1rP4/BQp5/KnRb3r/bR1qP1NQ/2P1qp2/5pq1/Q3bkN1 w - - 0 1 legal: proof: h4 d5 f4 b5 a4 g5 axb5 gxh4 c3 e5 Qc2 exf4 Qa4 d4 Qb3 d3 Qc2 dxc2 b4 Kd7 d4 Kd6 Kd2 Kd5 g4 Kc4 d5 a5 d6 f5 g5 h5 g6 f3 g7 f4 b6 h3 b7 a4 b5 a3 b6 h2 Bb2 h4 Bc1 f2 Ra2 h3 Rb2 a2 Nf3 a1Q Nd4 Qa4 Nf5 Rh5 Nh6 Nd7 b8Q Ne7 g8Q+ Nd5 b7 Ra7 Rg1 h1B Qg5 h2 Ng4 Bh6 Qa8 Nf8 b8Q Bd7 Qb6 Bg2 Qh4 h1Q Rb5 Qa2 Rb3 Ba4 d7 c6 Ba3 Nc7 Bc5 Bd5 Rg3 Qf3 e4+ Qd3+ Kc1 Nb5 Be3 Rc7 Rg2 Qe2 Nd2+ Kd3 Rb4 Qf6 Nf3 Qd4 Ng1 Qac4 Kb2 f3 Bc1 Bd2 Qaa6 Nd6 Ka3 Be1 Be3 c1Q+ Rb2 Qd1 Rb4 Qg7 Bc5 Kd2 Bd4 Qe3 Qa8 Qc5 Ba6 Qc4 Nf6 Bb3 Qb5 Be6 Bc8 Nf5 Rg5 Nd6 Qaa4 Qf1 Ba6 Qg8 Ba7 Qg2 Rc5 Bed5 Qb6 Bc2 Ng4 Bcb3 Rbc4 Nb5+ Kb4 Kd3 Qa2 Ba4 Qa1 Qdd2 Ka5 Qd4 Qh1 Q2e3 Qh4 Kd2 Rb4 Kd3 Nh3 Ke2 Ng1+ Kf1
B1nrR3/qr1P2k1/1P3pp1/1pRn3q/3n3N/6BN/PQ1KbBQ1/1q2b1n1 w - - 0 1 illegal: No possible last move
1kb2N2/2nP4/pPp1Q3/q5B1/1nP1b1K1/1brn1R2/3q1rNp/bQ1R1BB1 w - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 d4 e5 g4 f5 b4 h5 b6 f4 g5 h3 d5 c6 c3 h4 b7 Kc7 b5 e4 g6 e3+ Ke1 f2+ Ke2 h2 Kf3 h3 g7 e2 Ba3 e1N+ Ke4 f3 Kf4 Nf6 g8Q Bg7 Be7 Ne8 Na3 Na6 d6+ Kb8 d7 Nd3+ Kg4 Nab4 Qe6 a6 Nc4 Qa5 Ne5 Nc7 Ne2 Rg8 Rg1 h1B Ra3 h2 Nf4 Rh8 Qc1 Rh3 Ng2 Bf6 Ng6 Bh8 Be2 f1Q Bg5 f2 Nf8 Qd1 Qb1 Qd2 Rd1 f1B c4 Ba1 Ne1 Bfg2 Bf1 Be4 Rc3 Bh7 Rb3 B1e4 Ng2 Nb2 Ra3 Rc3 Rb3 N2d3 Ra3 Ka7 b8B+ Kb7 Ba7 Bhg6 Bg1 Kb8 b6 Bh5+ Kg3 Bhf3 Rc1 Bd1 Kh4 Bc2 Kg4 Bb3 Rd1 Nf4 Ra2 Qc1 Rb2 Bb7 Bh4 Nfd3 Rf2 Qd2 Re2 Bc8 Re3 Kb7 Nh7 Rb8 Qg8 Ka8 Qe6 Bb7 Rg3 Rf8 Bg5 Rf2 Nf8 Kb8 Rf3 Bc8
1b2b2R/r1qp4/QnP5/5K1n/3B1q1P/N1pr1R2/Rp1kPqN1/1Br3qQ w - - 0 1 illegal: No proof kernel
1bNB4/2QpKR2/1Pq1Qbp1/R2r2Pn/r1n3n1/1NP1b3/k2p2Q1/n2B3q w - - 0 1 illegal: No extended proof kernel
4Q1q1/nNbp2B1/pQ2b3/1pN3q1/Pr1P1R2/n3KPk1/RN2b1b1/3r1Bn1 w - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 g5 b4 gxh4 Qd3 c5 bxc5 exd3 Kd2 Kf7 c4 Kg6 g4 Kg5 a4 Kf4 f3 e5 c6 h5 c7 a6 g5 h3 g6 h4 c5 h2 g7 h3 c6 e4 Be2 e3+ Kc3 d2 Kd3 d1B Ra2 Nf6 g8N Ng4 Rd2 Bd6 Bf1 e2 Rc2+ Kg3 Nh6 e1N+ Ke4 Be2 Bd2 Qg8 Na3 Nf2+ Ke3 b5 Bb4 Bb7 c8Q Bc7 Nf7 Rh4 Ra2 Nc2+ Kd2 Rh6 Nc4 Na3 Qe8 Re6 Be7 Re3 Bf6 Rb3 Nb2 Rb4 Be5+ Kh4 Ke3 Ba5 c7 Bd5 c8Q Be6 Nd3 Nc6 Rd2 Na7 Qc7 Rc8 Nd6 Bb6 Qb8 Rc1 Nc5 Rd1 Ra2 Bc7 Qb6 B2c4 Ne2 Bd3 Nc1 Be2 Rg1 h1B N1b3 h2 Ncb7 Nh3 Rg6 Qg7 Rg5 Ng1 Nc4 Qf6 Rg6 Bg2 N3c5 h1Q Nb2 Kh3 Rg4 Qg5+ Rf4 Kg3 Bh8 Qh7 Bg7 Qg8
4RQrb/2Qp2pP/1r6/2r1nb2/bR1B3B/1PpQr1Pn/1q3N1q/2K1k1N1 w - - 0 1 illegal: Other
2Rn1k1b/2P1n1r1/3R2b1/Q2ppqN1/p1r1nPP1/3Q3q/1KBn4/BbR4N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 a4 Kc2 e3 c5 h3 b6 h2 b7 d3+ Kb2 h4 c6 d2 b5 e2 b6 e1N Bb5 h3 Qb3 d1N+ Ka2 Qf6 Bd3 Nc3+ Kb2 Bg7 Qc4 Ra7 Nf3 Ne7 Ng5 Bf5 Nd2 Nf3 Bc2 Bg6 Nf1 Ne4 Qd3 Nfd2 Ng3 Qf5 Rb1 Rg8 c7 Bh8 Rf1 Rg7 Nh1 Nbc6 b8Q+ Nd8 b7 Ra5 Qa7 Rc5 b8R Kf8 Qa5 Rc6 Rc8 Rc4 Ng3 h1Q Re1 Qf1 Nh1 h2 Rd1 Nf3 Be3 Qh3 Bd4 Nfd2 Rdc1 Bh5 Ka1 Be8 Rb6 Bf7 Kb2 Bg6 Nf2 h1B Rd6 Bg2 Nh1 Bf3 Ka2 Bd1 Ba1 Bf3 Kb2 Bd1 Bb1 Bb3 Bc2 Ba2 Qf3 Bb1 Qf1 Rc5 Qd3 Rc4
2n1k2B/2Prq3/p5P1/2Q3bn/2p2Rnb/r2NP1R1/1QK2pN1/qbn1B2B w - - 0 1 illegal: No proof kernel
R2r2r1/NRPN2n1/p4P1K/1RQ1B1P1/2q5/pq1B2b1/1Qp1nn2/1bn2kb1 w - - 0 1 illegal: No proof kernel
2Q1qR1b/2pB2k1/N6b/1b2r2P/1B4Np/P1QbNP1R/3npr1K/n1q1n3 w - - 0 1 illegal: No proof kernel
8/k1p2b2/B1bnRr2/2q1P1B1/4bPK1/Qp1nbQ1R/p1P2qr1/B1Nr3N w - - 0 1 illegal: No proof kernel
Kn1b1Q2/1Bprp1qr/2N2pq1/N3bBQq/3PP1B1/1Rn1qb1R/P7/5k2 w - - 0 1 illegal: Other
1qbQ1rkb/nP4N1/Br3Q1p/N2rp2P/B1R2pq1/3qr3/nR4P1/N4K2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 f4 c5 f5 cxd4 Bf4 gxf4 c4 Kf7 h4 d5 b4 a5 c5 e5 c6 h6 h5 d3 b6 e3 b7 e2 b5 a4 b6 d2+ Kf2 e1R f6 d4 c7 d3 Nf3 a3 Nd4 a2 Nf5 Nc6 b8N Bg7 b7 Ra6 Na3 Nb4 Rb1 a1R Nc6 Na2 Rb2 Re3 Nc2 Rb6 Na5 Ne7 Be2 Qf8 Kf1 Kg8 Rg1 Rb1 Na1 Nc6 Rh1 Na7 f7+ Kh7 Rh3 Rg8 Rf3 Bh8 Ng7 Qd8 Rg3 Rf8 Rg6 Rb5 Rc6 Rd5 Rc4 Qd6 Rbc2 Rb6 Rb2 Bg4 c8B Qb8 Bd7 Bf5 Qe1 d1Q Ba4 d2 Bd3 Qg4 Qh4 Nc6 Qf6 Na7 Be2 Bc8 Qd8 Re8 f8Q d1Q+ Kf2 Qc2 Qff6 Rf8 Kf1 Qc3 Re4 Qd2 Ba6 Kg8 Rc4 Qd3+
R3Q3/1P1NP3/pbnNPQb1/4br1p/K1n4R/Qq2p2q/1rnk2b1/6BB w - - 0 1 illegal: No proof kernel
7b/bP2p2b/kNnPrb1B/1N2nP2/pK3RR1/n2q4/N1qQp3/1Q4rB w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 d4 c5 Kd2 Kc7 Kc3 Kb7 b4 a5 f4 h5 g5 h3 b6 h2 d5 h4 g6 h3 g7 e3 b5 a4 Bd2 e2 Bg2 Nf6 g8N Rh6 Qe1 Bg7 Be3 Bf5 Qf2 Nfd7+ Nf6 Bh8 Bc1 Bh7 f5 Ne5 Nf3 Nbc6 Re1 h1N Bg5 h2 Nh4 Ng3 Bc1 h1Q Nd7 Nf1 Qe3 Re6 Qd2 Ne3 Rf1 Nc2 Rf4 Qd1 Bh1 Na3 Nf3 Qc7 d6 Rg8 Nd4 Rg1 Ra2 Qc8 Rb2 Qc7 Rb4 Bf6 Kb2 c3+ Ka2 c2 Nc3 c4 Rg4 Ka8 b7+ Ka7 b6+ Ka6 b8Q Qc8 Ndb5 Qc7 Qd4 Qd3 Bh6 c1B Qf4 Be3 Qg5 Bf2 Qd2 Bh8 Kb2 Bh4 Na2 B4f6 Rf4 Qd5 Kc3 Qc8 b7 Qc7 Qg8 Qd3+ Kb2 Qc8 Nb6 Qc7 Qg2 Qc8 Qf1 c3+ Ka1 c2 Qb1 c1B Rg4 Qc7 Rbf4 Na7 Qe1 Bd2 Kb2 Be3 Qd2 Nac6 Nd5 Qe4 Kc3 Ba7 Nb6 Nd8+ Nc4 Qd3+ Kb4 Qc8 Nb6 Qc1 Rh4 Qcc2 Rhg4 Ndc6+
r1n2nQ1/1Pp5/N5Nq/kbP1b2p/BqB5/3p1RR1/1Rq1Pr1K/Q2bq3 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 e5 axb5 exd4 h4 gxh4 g5 f6 g6 Ba6 Bf4 Bc8 Bg5 fxg5 b4 a5 c4 d5 f4 Kd7 Kf2 g4 Kg2 h3+ Kh2 a4 f5 d3 c5 d2 g7 d4 f6 a3 f7 a2 b6 Kc6 b7 Kb5 Nf3 g3+ Kg1 d3 Bg2 Bd6 f8Q Qh4 Qe1 d1B Ne5 Nd7 Ng6 Ne7 g8B Be5 b8R+ Ka6 Qd8 Nf8 Nc3 Bd7 b5+ Ka5 b6 Nc8 Bc6 g2 Ba4 Bb5 Nd5+ Qb4 b7 h5 Rb1 a1Q Rb2 Qc1 Qc3 Qh6 Qg5 Bf6 Kh2 Be5+ Qg3 Rh7 Rg1 Rf7 Qa3 Rf1 Qa1 Qbd2 Nb4 Qc2 Qf4 Qb3 Bc4 Qc2 Kg3 h2 Na6 Bd4 Qf7 h1Q Qg8 Be5+ Nf4 Re1 Rf1 Qg1 Rf3 Rf1 Kh3 Qd4 Ng6 g1Q Rg3 Qdc3 Rf3 Qe1 Rg3 Qd4 Kh2 Nb6 Rd8 Nc8 Rd6 Qdc3 Rf6 Qb4 Rf3 Rf2+
R1b1q3/rp1Pn2Q/B1q3r1/k4Pp1/1R1NbnKB/r1bPp3/2N1R2r/7Q w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 a4 e5 h4 c5 f4 Kc7 d6+ Kb6 f5 b3 h5 c4 h6 g3 d7 g2 h7 c3 Rh5 c2 Qe1 b2 Qh4 Nf6 Na3 b1B Ke3 Nc6 Qh1 Qe8 Be2 Bb4 Kf2 Ne7 Kg3 Nfd5 Nf3 g1R+ Kh4 g6 Ra2 Ba5 Bb2 c1Q Rg5 Qc6 Rg4 Rg3 Bc4 Rg8 h8Q Rg2 Kg5 Rh2 Qh7 Bd3 Rf4 Ra6 Kg4 g5 Bc3 Rg7 Bb4 Rg6 Bd6 Bc3 Bb8 e3 Rc2 e2 a5+ Kc5 Re4 Rb6 a6 Kb4 a7 e1R a8R Ra6 Re2 e4 Bg3 e3 Rb2+ Ka4 Bh4 Nf4 Nc2 Be4 d3 Ra1 Rb4+ Ka5 Nfd4 Ra7 Ba6 Ra3
1R1bBB2/Pb1Q1N2/r1p1rPnR/q1P1qp1N/1rkbN1bQ/6p1/3n4/K7 w - - 0 1 illegal: No possible last move
1B1b3b/p1n2nr1/kn4p1/3N1P1Q/4R1r1/b2RP1Bb/q1p1Bq1P/1Q2NK2 w - - 0 1 illegal: No possible last move
4N1q1/pq1r1B2/1bK1PQR1/bBNn2qp/R1r2PQ1/1b6/1Pk2nbp/B7 w - - 0 1 illegal: Other
r4Bq1/p5N1/1qn1pk2/2PQR2Q/1qnKprQN/3R4/4P2P/rbqb3B w - - 0 1 illegal: No proof kernel
bK1B2N1/p3Q2P/p1n1BP1r/2qr2N1/1n1bP1r1/4R3/qQ1R2p1/Q2b1bk1 w - - 0 1 illegal: No proof kernel
B7/p5pK/Pqb2rp1/1Q1Q4/1Q2n2R/PBqrP1r1/r2nkNnb/1N3R2 w - - 0 1 illegal: No proof kernel
1qb4B/4pQB1/Rb2p1n1/1kNP3P/bpR1r3/b4K1P/2b1Q2N/bB4rn w - - 0 1 illegal: No proof kernel
4b1b1/p3q2N/p1P2B1R/2r4Q/R2Kbpn1/P2PN1bN/k1b1rnb1/3QB3 w - - 0 1 illegal: No proof kernel
3NB3/1r1b3p/2PrQ3/2kP1RP1/p3K2q/1b1rpRn1/2b1QN1r/bn1RB3 w - - 0 1 illegal: No possible last move
1b1n4/Q1N2RpP/r5q1/3Bkr2/n1P5/1BR1n2p/1pKRb1NP/2Q1rr1n w - - 0 1 illegal: No proof kernel
2r2b1Q/2bp1Q1P/n3r1p1/1n1P1BNq/n3pkP1/B2R4/nNR2bR1/K2b4 w - - 0 1 legal: proof: e4 b5 b4 h5 a4 f5 g4 fxe4 Qf3 h4 Qg3 hxg3 axb5 c5 Bc4 cxb4 Bd3 Nc6 Bf1 Nb8 Kd1 Kf7 f4 Ke6 d4 a5 c4 g6 Kc2 a4 Kb2 g2 h4 a3+ Ka2 e3 h5 e2 h6 e1B b6 Nf6 c5 Nd5 b7 Nc3+ Kb3 a2 Kb2 b3 c6 Ra6 c7 Bg3 h7 Nb5 Nf3 g1B Nbd2 B1f2 d5+ Kf6 f5 e5 Rh4 Re6 Bd3 Na6 b8Q Qe8 Rb1 a1N Rh3 Nc2 Ng5 Ncb4 Ka1 Na2 Ba3 Qf7 Rg1 b2+ Kb1 Bb7 c8R Bc6 Nc4 Qg7 Bc2 Qh6 Rg2 Qh5 Be4 Bf4 Rd3 Bh2 Kc2 b1N Kb2 Rg8 Ka1 N1c3 Nb2 Na4 Qa8 Bg7 Rc7 Rc8 Qb8 Bf8 Qa8 Kg7 f6+ Kh6 Bf5 e4 f7 Bf4 Rb7 Bc7 Qb8 Nbc3 Rb3 Nb5 Rbc3 Kg7 Rc2 Kf6 Qa8 Ke5 Qb8 Kf4 Qa8 Bb4 f8Q Bbc5 Qf7 Bf8 Rdd2 Nd4 Rd1 Bb5 Rdd2 Be2 Rd3 Bd1 Qb8 Rce8 Qd8 Nb5 Qdf6 Ra8 Qh8 Rc8
2bB4/r2pbPkP/r3q1b1/1Rr5/N1BR2nQ/KQ1pp3/1b1nP1B1/5Nr1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 g5 cxd4 Qd3 f5 Qe4 h6 Qxf5 hxg5 Qh7 g4 Kd2 Kf7 h4 b5 c4 e5 Kc2 g3 Kb2 e4 a4 b3 f4 b4 f5 g2 f6 Na6 h5 Nc5 h6 Be7 a5 Ra6 Ra4 Qb6 Nf3 g1R Nc3 Qe6 Bg5 e3 Nd2 Ne4 c5 Kf8 f7 Ngf6 c6 Ng4 Bf4 g5 Bg2 Ra1 Nf1 Nd2 c7 Ra3 Kc1 b2+ Kc2 b1B+ Kb2 b3 Rh5 Ra7 a6 Bg6 Bd6 d3 Rd4 Ra5 Na4 Rc5 Ka3 b2 Bg3 b1R Bh4 Rb6 Bd5 Rg8 Bc4 Rbc6 Qh8 Rd6 h7 Rb6 Qf6 Rd6 Qf2 Kg7 Qe1 Nf6 Qd1 g4 Qb3 g3 Rhd5 g2 Bg5 Rcc6 Rb5 g1B Bh4 Rc5 Bg5 Ra8 a7 Bh2 Bh4 Be5 Bg5 Bb7 c8Q Ng4 Qd8 Bc8 Bh4 Ra6 Bg5 Rb8 a8B Rb7 Bh4 Rba7 Bg2 Bf8 Qg5 Bfd6 Qh5 Be7 Bg5 B5f6 Qh4 Be5 Bf4 B5f6 Bc7 Be5 Bd8 B5f6 Rd5 Bb2+ Kb4 Kh8 Be4 Nh6 Qg4 Bf5 Qh4 Rg1 Rd4 Ng4 Bh1 Kg7 Bg2 Bc3+ Ka3 Bg6 Nh2 Ba1 Nf1 Bb2+
RB1n4/PRn3nb/1pQq3k/2rR3b/p1r1n3/1Pp2B2/1Q3bNP/Nb1K4 w - - 0 1 illegal: No proof kernel
1n3bq1/p1B3r1/N3P2r/R1P2KpB/1rr3P1/1Q2qR1r/2N1Qp1n/2kN3q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 c5 f5 cxd4 f6 Ba6 h5 Bd3 Be3 Bg6 hxg6 exf6 Bd2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 c4 f5+ Kf3 Ke5 e4 d5 b4 h4 g3 h3 b5 a3 b6 h2 b7 a2 g7 d3 c5 Kd4 e5 d2 e6 Nf6 g8N Rh3 Bc4 Ng4 Qe2 d1R Ba3 Rc1 Ba6 Rc4 Qe5+ Kd3 Qb2 d4 Ne2 Qc8 Rf1 h1R Qb5 Kc2 Ne7 d3 Bc1 d2 Nbc3 d1R Nc6 Rd7 Nd1 Rg7 Bd2 Rh6 Ba5 R1h3 Bc7 Kd2 Ned4 Nh2+ Kf2 f3 Nc2 f4 N6b4 Nc6 b8Q Qe8 Q8b6 Rb8 g4 Qf7 Bc8 Qg8 Na6 Rb7 Qb3 Nb8 Q6b5 Rb6 Bd7 Rb7 Rc1 a1Q Be8 Qe5 Ra1 Qc3 Ra4 Kc1 Ra5 Qd3 Bh5 Qd2+ Kg1 f2+ Kh1 Qe3 Kg2 Rd4 Qe2 Rbb4 Rh1 Rh4 Rg1 f3+ Kg3 f1Q Rg2 Qh1 Rf2 Rdc4 Rf1 Qd2 Kf2 Qe1+ Ke3 Rh3 Kd3 Rb6 Rf2 Rc3+ Ke4 Rb4+ Kf5 Rcc4 Rg2 f2 Rg3 Qd2 Rf3 Qe3
1N3k2/4pprn/1pK1Pqr1/3Q1qN1/qP6/P3b2B/qRQBb2q/r1RN4 w - - 0 2 legal: proof: d4 g5 g4 a5 f4 gxf4 h4 c5 b4 cxd4 g5 a4 h5 Nc6 Qd3 Ne5 Qb3 Ng6 hxg6 axb3 Kf2 h5 Kf3 d5 c4 b2 e4 h4 e5 h3 c5 d3 e6 b6 g7 h2 g6 d4 Ke4 f3 c6 f2 c7 d2 a3 d1R Ke5 d3 Bh6 d2 Nc3 b1Q Ra2 Ba6 c8Q Be2 Qc5 Rh7 Nh3 Nf6 g8N Qdd3 Ng5 Rg7 Bh3 f1Q Rb2 Qa2 Qd5 Ra1 Nd1 Nh7 Rg1 Qb5 Ke4 h1Q+ Kd4 Qf5 Rf1 Qd7 Nf6+ Kd8 Re1 Qh2 Rg1 Qdd6 Nd7 Ke8 Nb8 Qf6+ Ke4 Qc5 Re1 Rg8 g7 Qa5 Nc3 d1Q Rf1 Qda4 Rc1 Qc5 Nd1 Qcf2 Nf3 Ra5 Bd2 Rc5 Ng5 Rc3 Qb3 Rg3 Kd5 Rg4 Nf3 Rg6 Ng5 Qa5+ Kc6 Q2f5 Qd5 Qa4+ Kb7 Rh8 g8Q Rg7 Rc6 Rg6 Qg7 Rg8 Qh6 Bg7 Rc1 Kf8 Qh4 Bh6 Qhc4 R8g7 Qc2 Qa5 Kc6 Qa7 Ne4 Be3 Ng5 Qa4+
6K1/Qpqr2Q1/1Pqq1R2/1N2bNb1/3Rb2N/bpBPr2k/1Pp1B3/b4n2 w - - 1 2 illegal: No proof kernel
1K2Bn2/3P2P1/kB1Q1p1B/nbb1Np2/4pn2/3qNr2/1q1bP1b1/R1b3QR w - - 0 1 legal: proof: c4 a5 h4 d5 f4 dxc4 g4 g6 f5 gxf5 g5 Ra6 a4 b5 h5 Rg6 hxg6 bxa4 Kf2 Kd7 Kf3 Kc6 Kf4 Kb6 Ke5 h5 d4 c5 b4 a3 b5 f6+ Kf4 e5+ Kf3 e4+ Kf4 a2 d5 a4 d6 c3 g7 c4 g6 a3 Bg2 h4 Bh3 c2 Bb2 c1B+ Nd2 c3 Nf3 c2 Bg4 h3 Bh5 h2 Ne5 Ba6 Ke3 Nd7 Kd4 Ne7 g8Q Nd5 Nf1 Bd2 Ne3 Nf4 Bc1 Be7 g7 Nf8 Be8 Rh3 Qd5 Rf3 Qg1 Ka5 b6+ Bb5 Kc5 Ka6 b7 Qd7 Bb2 c1B b8B Qd8 Bd4 Qd7 Rb1 a1Q Qe6 Qb2 Ra1 a2 Bc7 Qd8 Bb6 Bd3 Kc6 Bc4 Rb1 a1N Bc3 Nb3 Ra1+ Qa3 Bb2 Qb8 d7 Bc5 Qd6 Bd3 Bc7 Qb4 Bb6 Na5+ Kc7 Bb5 Bd4 Qbb2 Kb8 Qac3 Nc2 Qd3 Be3 Nh5 Bh6 Nf4 Qg2 Rf1 Ne3 Rf3 Rd1 h1B Qg3 Bg2 Rh1 Bh3 Qg1 Bg2
4rQRB/p2PbQP1/r1n3NR/P5kr/2Bn2N1/1r2p3/B1p1q1K1/qr2n3 w - - 0 1 illegal: No possible last move, all moves rejected
Bq1n3k/3p1rRq/rrQ1qPP1/1N4b1/bNrP1B1R/p5Q1/3p4/1B4rK w - - 0 1 illegal: No proof kernel
Nb1R3B/Q4b1P/b1rp4/2b2pR1/1PQ2q1r/1bqPp2k/8/1KN1nqQB w - - 0 1 illegal: No proof kernel
Q2bRB2/3P1p1r/p2p1r2/3R1Nr1/4BB1b/P2q1q1k/bK1nP3/N1r3Qr w - - 0 1 illegal: No proof kernel
qQrb1R2/1q1Pp1p1/3r1p2/BB3P2/1n2Q2N/4N1Kr/2r2NP1/k1qbR2r w - - 0 2 illegal: Other
b2N4/PB2ppk1/1NrPp1q1/R1B5/2BRb3/n2r1qrK/3rrP2/2b1QQ2 w - - 0 1 illegal: No possible last move, all moves rejected
qBK5/6p1/rn2QRN1/5B2/P2N1p1B/2qn1P1r/nr1Rnp1P/k2bQq2 w - - 0 1 illegal: No proof kernel
N2RB1Q1/1k1p2q1/1p3Rp1/r4r2/2q2BPq/2nRPN1Q/P1K2n1b/2n2rn1 w - - 0 1 illegal: No extended proof kernel
5q2/3R1pQ1/2B4q/Rb4K1/Nr2pQPp/1r1NB1P1/q2nPr1n/1Qq2n1k w - - 0 1 legal: proof: d4 g5 b4 a5 f4 axb4 Be3 gxf4 Bc1 Bh6 d5 Bg5 d6 cxd6 g3 d5 g4 Bh4+ Kd2 Bg3 hxg3 d4 Ke1 Ra6 Rh3 Ra5 Rh1 Ra8 Kd2 b5 c4 d5 a4 Kd7 c5 Kc6 a5 h5 a6 e5 a7 b3 Bh3 b2 Ra3 b4 Qe1 b3 Kd3 f3 Qb4 f2 Bd2 f1N Bg5 Ba6+ Qc4 Nd7 Be3 Bb5 Bd2 Rb8 Bh6 Ngf6 Rh2 Qf8 Nf3 Ne4 Rf2 Ned2 Nc3 b1R Bf4 b2 Rb3 h4 Nd1 Rh5 Rc3 Rf5 Rc1 Rb7 Kc2 d3+ Kc3 Rf6 a8Q Qh6 Qb8 d4+ Kb4 Qf8 Be3 Rf4 Qc2 Kd5 Ne1 Ke4 Bg2+ Rf3 Bh1 Qh6 c6 Rb6 Rg2 Rf2 c7 Nf3 c8Q Nc5 Qh8 Ra6 Qbf8 N3h2 Qf6 Rf4 Qd2 Ra3 Qc2 Nb3 Bd2 Ne3 Qc4 Rf1 Q8g7 Rf4 Bc3 d2 Rg1+ Rf3 Qce6 d3 Bd4 Ra4+ Kc3 Ra3 Ng2 Rf5 Re1 Nef1 Qd6 Rf3 Nf4 Ra4 Qb4 Ra3 Ne3 d1Q Nc4 Ra4 Rc2 Qc1 Rd1 Ra3 Ba7 Ra4 Nb6+ Ke3 Qfd6 Kf2 Rd2 Kg1 Qdd4+ Rf2 Bc6 Na1 Qdd6 e4 Kd4 Ra3 Ke5 Nb3 Kf5 Kh1 Rd1 d2 Qdf6 Bd3 Rc5 Ra4 Ra5 Bb5 Qfd6 Ra3 Na4 Qc5+ Qde5 Qf8 Rc1 d1Q Be3 Qd2 Rd1 Qc1 Rd7 Nbd2 Qc7 Rc3 Qb3 Rc4 Qc2 Rb4 Qce5 Ndf3 Nd3 N3d2+ Qf4 Ra1 Ra8 b1Q Ra5 Ra3 Qcb2 Qa2 Qb1 Qhh8 Kf6 Rab3 Kg5 Qh6+
b2q1Qb1/2R1RBKn/8/rpqQr1Qr/3qP1Pp/1Pb5/4pN2/B2bk2N w - - 0 1 illegal: No proof kernel
1KNn2nr/Pb3r1p/4p1kn/rN4r1/1QB1Prq1/4Q1B1/4Pr1p/2R1R1R1 w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 g5 b5 gxh4 b6 Bh6 Qd3 Be3 fxe3 axb6 Qd2 b5 Qd1 b4 Kd2 b5 Kd3 f5 c4 Kf7 a4 d5 g4 b3 e4 b2 a5 h3 c5 h2 c6 b4 a6 b3 g5 f4 c7 f3 Qc2 f2 Na3 b1R Qc5 b2 Nb5 Nc6 Nh3 Qd7 Qb4 Kg6 Bf4 Nd8 Bg3 Bb7 c8Q Qg4 Qcc5 Rc1 Bg2 b1R Re1 f1R a7 Rf2 Bf3 Rc8 Qcc3 Rc5 Qd2 R1c2 Qe3 Ra2 Rc1 Ra5 Nf4+ Kf7 Ng6 e6 Ne7 Rc7 Nc8 Kg6 Re1 Rf7 Rc1 Rb2 Rab1 Rc2 Re1 Rc5 Rbc1 Kg7 g6 Kf6 g7 Kg6 Rg1 Rf4 Rgd1 Rc7 Re1 Rcf7 Kc2 d3+ Kc3 d4+ Kc4 d2 Kc5 d1R Kb6 R7f6 Kc7 d3 Kb8 d2 Rc5 Rda1 Rc7 d1N Rc1 Qh4 Bg4 Rf7 Bf3 R1a3 Bg4 Rd3 Bf3 Rd5 Bh5+ Kh6 Bg6 Rg5 Bh5 Qg4 Bg6 Re7 Be8 Ref7 Bc6 Kg6 Bd5 Nh6 Bb3 Nc3 Bc4 Nd5 g8R+ Rg7 Rf8 Ne7 Rf5 Neg8 Rd5 Kh5 Rdd1 Kg6 Rg1 Rc7 Rde1 Rcf7
R5N1/1Q1rB1K1/1P5n/4p1Pk/3pbb1N/1q1B1NQ1/b1prPR2/r1rr2r1 w - - 0 1 illegal: No proof kernel
N3b1B1/1R3n2/Pn2r2p/1qk1r1RP/1p1Rn2p/1Pr3r1/nN4Q1/QB2n1K1 w - - 0 2 illegal: No proof kernel
5K2/2n3p1/bQRpqpB1/2N1QPb1/rBR1R1P1/3qP3/1b1nbb2/2bNk3 w - - 1 2 legal: proof: g4 b5 d4 h5 c4 a5 a4 h4 Qd3 bxa4 b4 e5 Qg3 hxg3 b5 exd4 c5 Ra6 Be3 c6 Bc1 Rb6 cxb6 c5 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 h4 Ke4 f4 d3 b7 a3 f5 g2 h5 a4 h6 a2 b6 a3 h7 d2 e3 d1B Kb5 c4 Rh4 c3 Bd2 c2 Nf3 c1B Rh6 g1B Nd4 Nf6 Bc4 Be2 Ne6 Kf3 Nc3 Kf2 Nc5 Na6 b8Q Ne4 b7 Be7 Rc6 Bg5 Qe5 f6 b8Q Nc7+ Kb6 d6 Bf7 Qg8 Bg6 Bca6 Nd1+ Kf1 Be1 Bf2 Bb4 Qe6 Qd8 Rg8 h8R Nd2 Qb8 Rc8 Re8 Ke1 Rb1 a1Q Rb3 a2 Rc3 Nb5 Rc4 Qc3 Qc7 Ra8 Qd8 Na3 Kc7 a1B Qb8 Nb5+ Kd8 Ra7 Qb6 Qd3 Re7 Bd4 Ke8 Bdb2 Kf8 Nc7 Qg3 Qed5 Ree4 Qe6 Qh2 Bc8 Qf4 Ra4 Qe5 Ba6
Q3Br2/1R2pr1Q/1R1pKb1p/1r4rn/PPn1P1N1/2nr4/2qB1R2/k1N1n3 w - - 0 1 illegal: No proof kernel
3N1b1B/2Rr1qP1/nbQ3bq/p3N2B/P2p1Q1p/1R1q4/1Pb1n2K/kq1N4 w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h4 a5 Qc2 g5 Nh3 g3 Qd1 g4 Ng1 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Ke7 Qc2 Kf7 Qd1 Ke8 a4 Kf7 e4 Ke6 f4 d5 g6 c5 e5 h5 Na3 g2 Kf2 c3 Kg3 c2 Rh4 d3 Rh1 d2 Ba6 h4+ Kh2 g3+ Kh3 c4 Nf3 g1B Qe1 d1B Qf1 c3 Bd2 c1Q Nc4 c2 Ne3 g2 Bc4 Nf6 Ra3 Ne4 Be2 Na6 Bc3 Ng3 Rb3 Qb1 Bd4 Bf2 Kh2 c1Q Rg1 Bc2 Nd1 Kf5 e6 Ke4 e7 Rh7 f5 Qh6 f6 Bf5 e8Q+ Qe7 Qd7 Qf7 Ne5 Be3 Bc3 Bb6 Bh5 Ne2 Qc6 Rg7 Nd7 Kd3 Qf4 Qc1 Re1 Qe3 Bd4+ Kd2 Ne5 Kc1 Bc3 Kb1 Rg1 Qc7 f7 Ka1 Rf1 Qd3 Rf2 Ba3 f8N Qf7 Ne6 Bf8 Nd8 Rh7 Nd7 Be4 Bh8 d4 Rf3 Rg7 Re3 Bf5 Re7 Rh7 Ne5 Rg7 Rc7 Be4 Ne3 g1Q+ Kh3 Qb1 Kh2 Qfc4 Nd1 Rd7 g7 Bg6 Qd6 Qd5 Qc6 Qf7
6r1/r1PNbr2/1Qp2Pk1/pR4b1/P2r1pB1/1nb2R2/1R3qNq/BK1bQ3 w - - 0 1 illegal: No proof kernel
N1B2b2/1K1p4/Q1n2q1q/r2nBRP1/1bQ5/P1qPp1p1/2bNq3/k1bB2R1 w - - 0 1 illegal: No proof kernel
3rq1k1/p1b1Qnp1/3qQ3/4b3/2Rb3p/P2nP2q/1Q1NbBPK/N3RqB1 w - - 0 2 illegal: No possible last move
nb2bnB1/5PNb/5NP1/KQ1R2Np/1p1pnR2/2QPBr2/r1rr2k1/1n6 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c4 gxh4 Qf3 b5 Qg4 c6 Kd1 b3 Ke1 b4 Qf3 Qb6 Qd1 Qb5 cxb5 Ra4 Nh3 Ra5 Ng1 Ra8 g4 Kf7 f4 Kg6 a4 h5 a5 d5 g5 Kf5 d3 e5 Kd2 b2 a6 c5 a7 h3 b6 h2 b7 c4 Ra2 e3+ Kc2 c3 Kb3 e2 Ka4 Kg4 f5 Kg3 f6 e1N Nd2 b1N Qb3 d4 Rb2 c2 Qe6 e4 Qe8 e3 Qb5 e2 Qa5 Na6 b8Q+ Nc7 Qab5 Nf3 Ka5 e1R Nh3 Rd1 Bg2 Bd6 Rg1 Bf5 Qc8 Bh7 g6 h1B Ng5 Ne5 Bd5+ Kf2 Rg4 Nd7 Ra2 Nf8 Rf4+ Kg1 Bf7 Bc6 Nde4 Kg2 Be3 Rd2 Bc4 c1R Be6 Rb8 a8N Be8 Rc2 Rb7 Rc5 Rcc2 Rd5 Rb6 Nc5 Rb8 Nb6 Na8 Nbd7 Rb7 Bf7 Bb8 Nce6 Rbc7 Ng7 Ra2+ Qa4 Rcc2 Qc3 Ne7 Bg8 Nf5 Ne5 Ng3 Ng4 Rab2 Qb5 Ne4 Be6 Nd7 Bf7 Rf8 Bg8 Rf7 Qc7 Nf8 Qc3 Re7 f7 Ra2+ Qa3 Re5 Nf6 Rf5 Rh4 Rab2 Qc3 Rf3 Rf4 Ra2+
7N/1R1Pp1nn/kBpPrNRN/6q1/p1Kb4/PBQ5/nbr1Q1bp/2r5 w - - 0 1 legal: proof: g4 d5 h4 b5 c4 bxc4 e4 f6 g5 fxg5 exd5 gxh4 Qg4 h3 Qf3 Be6 Qd1 Bc8 Ke2 Kd7 d4 a5 f4 g5 b4 h5 f5 g4 f6 c3 Kd3 c2 d6 Kc6 a3 Kb5 d7 h4 f7 g3 d5 g2 d6 h2 Bg5 c1R Nh3 g1B Be3 a4 Ng5 h3 Nd2 Rh6 Nde4 Bg7 f8N Re6 Bb6 Bb7 Rb1 Bb2 Nf7 Nc6 Ng6 Bgd4 Qe2 Ka6 Nh6 Rc8 Nh8 Nf6 Rg1 h1N Rg6 Nh7 Nf6 h2 Bg2 Qf8 Bd5 Qg8 Ba2 Ng3 Bb3 Rf1 Kc4 Nf5 Rd1 Ba8 Rb1 Ng7 b5+ Kb7 Bc5 Nb4 b6 Ka6 b7 Na2 b8Q Bg2 Qb4 Rc1+ Qc3 c6 Ne4 Rf8 Bb6 Rff1 Nf6 Rc2 Rd1 Be5 Rd5 Bd4 Rb5 Re1 Ba5 Rd1 Rb7 Rdc1 Bb6 Qf7 Rg3 Qh5 Rg6 Qg5
Rr1b1b2/2pp2p1/2p2PR1/B1P2n2/1BRQN1Q1/1krP3n/r3N3/1b3Knq w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 hxg4 Bb5 axb4 Bc6 bxc6 a4 Kf7 c4 e5 f4 b3 h4 e4 a5 g3 a6 b2 h5 g2 f6 Ke6 f7 e3 a7 e2 h6 Ba6 h7 Nh6 Rh4 Nf5 Nc3 b1R Bb2 Rc1 Ne4 Rc3 Ba3 Bb5 Bb4 Na6 Ba5 Nb4 Rg4 Qf6 Ra4 Nd5 Rg6 Rb8 Kf2 e1B+ Ke2 Rg8 a8R Bh4 h8Q Bg5 Qh3 Rh8 Nf3 g1N+ Kf1 Ba6 Qg4 Rh2 Qa1 Bb5 Rb4 Ba4 Qd1 Bc2 d3 Bb1 Qa4 Ra2 Nd4+ Ke7 Ne2 Bh4 Rg5 Qh6 Rg6 Bg5 Qb3 Qh1 Qb2 Nh4 f5 Nf4 Ra4 Nfh3 Qb6 Kd8 Qb4 Kc8 Qc5 Bd8 f6 Kb7 Qe3 Nf5 Qd4 Bd6 f8B Bb4 Bc5 Ba3 Ba7 Bf8 c5 Ka6 B7b6+ Kb5 Rc4 Nh6 Bb4 Nf5 B6a5 Ka4 Qg3 Kb3 Qf4 Kb2 Qg4 Kb3
Q4q1Q/1B6/P1pbKPNb/qBr1R3/3Bpn1P/1k6/5pNp/3brqnR w - - 0 1 illegal: No proof kernel
2Qq1Q2/R1RR1pP1/2B1P1bb/1n1N1r1p/n1KnP1p1/B1p1r3/2qk3b/3N4 w - - 0 1 illegal: No proof kernel
RK3Q2/b3p2r/1PqRQ3/NpQq2p1/pbP3rk/2N4n/1nn1P2B/1r3B2 w - - 0 1 illegal: No possible last move
BN3n2/q1QppP1Q/1b3n2/1k1rP1RR/rpn2q2/1P4rR/2p1NB2/1K3b2 w - - 0 1 illegal: No possible last move, all moves rejected
1n2QqQ1/k1P4N/rqp1BB2/nb2b1Pp/1R1P1n2/4p3/N1p5/1rRbN2K w - - 0 1 illegal: No proof kernel
rKn2q1k/2PP1bpq/p1R5/2QRB1pN/2rNBn2/6rp/Pb1Qn3/6N1 w - - 0 1 legal: proof: g4 d5 b4 c5 bxc5 f6 h4 Qc7 e4 dxe4 g5 fxg5 h5 Qh2 Bc4 Qxh5 Bf1 Qh2 Ke2 Kf7 Ke3 e5 d4 h5 f4 b5 c4 h4 d5 b4 d6 b3 f5 h3 c6 b2 c7 a6 c5 Nc6 f6 Rh4 Nd2 b1Q Bc4+ Be6 c8Q Nd4 c6 Ne2 d7 Ra7 Nf1 Ne7 Bd3 Kg8 f7+ Kh8 Bb2 Rg4 Qc7 Nc8 Ng3 Ba3 f8N Bf7 Nh5 Rf4 Bd4 Bb2 Ne6 Qg2 Qe1 Qf1 Qd2 Rg4 Rh2 Qf5 Rf2 Rg3+ Rf3 Qc2 Rc1 Qc5 Qca5 Qh7 c7 Qf8 Rc6 Bg6 Qc5 Bf7 Kf2 e3+ Kf1 e4 Rf5 Nf4 Be5 e2+ Kf2 e1N Nd4 Neg2 Bc2 Ne2 Bb1 Rb3 Bd3 e3+ Kf3 Ngf4 Ke4 Nc1 Bb1 e2 Bc2 Rg3 Bd3 Ne6 Kd5 e1R Be4 Ne2 Rd6 Qg6 Kc6 Rc1 Rd5 Rc4 Rf6 N6f4 Rfd6 Ra8 Kb7 Ra7+ Kb8 Qh7 Rc6 Ra8+
1bqQrkq1/K1p1pN2/pP5p/3bPQ2/1n1r3P/1nN2B2/2Q2r1b/1R1R3B w - - 0 1 illegal: No possible last move
qr1Qn3/1p4PQ/1P1KB1R1/1bp2p1b/BR3nn1/P1r1B2r/2N1p3/N2k2q1 w - - 0 1 illegal: No proof kernel
2B1KQ1B/1p2nP2/PbkN1Q2/qR3n2/pb5R/QprN2p1/b2q3P/nr6 w - - 0 1 illegal: No proof kernel
2n2N1r/PrR2b1p/3RQ1Np/b1K1q1p1/k2nBPQ1/B4P2/1p2r3/1q2b1Q1 w - - 0 1 illegal: No proof kernel
1k4N1/pp2Bnbp/4q3/6Nb/2n1PK1P/BQ1Pp3/1Q1rR1R1/1n1Br1rq w - - 0 1 illegal: No proof kernel
1k3Kb1/Nq6/2B1R1p1/2prb1Bb/6Qn/nP1NPQp1/4p1Pr/b2n1Q1R w - - 0 1 illegal: No proof kernel
r4b2/4B2n/3p1nP1/4Qqpk/NpB1bQb1/1Pp1PN1K/N5rR/2r2Rr1 w - - 0 1 illegal: No possible last move
1R1qB3/7r/1PB1P2n/3KRR2/N5br/2Npp1n1/p1kpP2Q/2brnQn1 w - - 0 1 illegal: No proof kernel
b3RQ1K/1brNP3/Qb5B/1nPk4/1npNN1p1/bR5P/1pp1rr2/3B2q1 w - - 0 1 illegal: No proof kernel
2n3N1/kb1n1rN1/3B2pp/b1qbpbR1/P3pr2/1Pq1Q3/N2B1QP1/3K2R1 w - - 0 1 illegal: No proof kernel
1Nr4k/r4br1/pqB5/p2Q2B1/5nN1/PrR1p1Pq/Pb2Knp1/R3N2Q w - - 0 1 illegal: No proof kernel
3n3r/BbR1q1pP/1rp1npQ1/Q3P3/p1k5/Rn3P2/4R1NN/1KnBb2q w - - 0 1 legal: proof: d4 b5 c4 e5 g4 exd4 a4 d5 axb5 dxc4 Qd2 h5 Qd1 hxg4 Kd2 Ke7 Kc2 Ke6 b4 Kd5 e4+ Ke5 h4 a5 h5 a4 h6 f6 h7 g3 b6 c6 b7 g2 f3 c3 b5 Ke6 b6 Qd7 e5 Kd5 Qd3 Nh6 Nh3 g1N Qg6 Ne2 Nd2 d3+ Kb1 Qe7 Ra3 Na6 b8Q Bb7 Rh2 Nd4 Qa7 Nf7 Be2 Rb8 Nf1 d2 Bd1 Ne6 Re2 Nac5 Nf4+ Kc4 Qa5 Nb3 Ng2 Nfd8 Nh2 c2+ Ka2 Kd4 Bb2+ Kc4 Bd4 c1N+ Kb1 Qf7 Bg1 Bb4 Bc5 Qe7 Bf2 Bc8 b7 Bc3 Bc2 d1Q Ba7 Qh1 Bd1 Ra8 b8R Be1 Rb7 Rb8 Rd7 Rb6 Rc7 Bb7
6bK/2RN1PPQ/1np1qN2/k1PB1B2/rn3bnp/2B3q1/1Rp1p3/Qrn5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 c5 gxh4 Qe2 Ra7 Qd3 Ra8 Qc4 dxc4 Ke2 Kd7 Ke3 Kc6 Ke4 Kb5 Ke5 h5 f4 b6 g4 b3 d4 h3 a4+ Ka6 g5 b2 g6 h2 f6 b5 d5 c3 f5 h4 f7 c2 a5 Qd7 d6 Nh6 Nd2 b1Q f6 Qb3 Bh3 b4 Ne4 Qg3+ Bf4 b3 Bf5 e6 Nf3 b2 Rhb1 h1N g7 Qe7 d7 Nf2 d8Q Ra7 Qd1 Nd7+ Kd4 e5+ Kd5 Qe8 Bd2 Nhg4 Bc3 Bd6 f8Q Nd3 Qg8 Nc1 Qh7 Qg6 Ke6 Rf8 Nf2 e4 Ne5 e3 Ne4 Nb6+ Nd7 e2 Ra2 Kb5 a6 Bf4 Ra3 Ra8 a7 Bb7 Ra4 Rfb8 Qd4 Qh6 Kf7 Bc6 Rb4+ Ka5 Qd1 Bb7 Qg1 Bc8 Kg8 Qg6 Kh8 Bb7+ Nf8 Bd5 Qf1 Bg8 f7 Qe6 Nf6 Na4 Ra1 b1N N8d7 Rb7 Ra2 Rbb8 Rab2 Nb6 Be5 Nc3 Rd4 Nb3 Qa1+ Na2 Rb4 Nc1 Bc3 Nd5 Rd4+ Rb4 Rd2 Nb6 Rd1 Rb8 a8B Rb7 Rd3 Ra7 Bd5 c6 Bd4 Ra4 Bc3+ Nb4 Re3 Qd6 Re7 Qe6 Ne5 Ra8 Rc7 Rd8 Bc4 Rd1 Ned7 Nd3 Bb3 Rb1 Bd5 Nc1
K3n3/Rqp1q1k1/p1PqQn1r/3b2qB/1p2N3/2P1p2r/RRQ1B2P/N3b3 w - - 0 1 illegal: No proof kernel
4R2b/1P4pP/2n1Q3/P1KN2rq/bB2p1Rp/nN2QBq1/6pr/b1N2kb1 w - - 0 1 illegal: Other
Q2bb1B1/p1q1Q2P/P2p1P1r/3rpBR1/Rp1qrr2/2kNn3/1Nn4N/1K6 w - - 0 1 legal: proof: e4 c5 d4 e5 b4 h5 bxc5 f6 g4 hxg4 Bf4 exd4 e5 Rh3 e6 Rh8 Be5 fxe5 Kd2 Ke7 Kc1 Kf6 f4 b5 h4 g5 a4 d3 c4 g3 a5 g2 c6 g4 e7 b4 e8Q d6 c7 g3 h5 Ba6 c8B Rh7 c5 Nh6 f5 Rh8 c6 Be7 c7 Nc6 Qf3 Nd4 Ra4 Ng4 h6 Nc2 Nh3 g1Q Nd2 g2 Nf4 Bb5 a6 Qd4 Rh5 g1R Kb1 Nge3 Rg5 Rg4 Be2 Rb8 Nf1 d2 Nd3 Re4 Nh2 Qd7 Qh1 Bd8 Bg4 Qh7 Be6 Ra8 c8N Qc7 Bg8 d1R+ Ka2 Rb8 Nb6 Rf1 Qd7 Rff4 Nc4 Bc6 Qg2 Rb5 Kb1 Rd5 Qh7 Be8 Ncb2 Qc6 Qb7 Qc8 Qa8 Qc7 Qh3 Ke7 Qh4 Kd7 Qb8 Kc6 Qa8+ Kb5 f6 Qdb6 Bf5 Qd4 Qh5 Rh7 Qf7 Rh8 Qe7 Rh7 Nd1 Kc4 N1b2+ Kb3 Ra5 Kc3 Ra4 Rg7 h7 Rg6 Bg4 Rh6 B4e6 Ng4 Bf5 Nge3
n1nr3r/pPb2B1p/3bB2R/1p4pQ/bB5N/Q2PqN1q/2P1k3/K2b3R w - - 0 1 illegal: No proof kernel
2R1Qnkn/1b2n1r1/P3pPb1/6b1/3qq1p1/2NqppP1/2RNB1RK/4BQ2 w - - 0 1 illegal: No proof kernel
n2Nq2b/1Q2Np2/p1P2Pp1/5QR1/n1p2B1q/R2Br1Rr/2Pk1r2/3q1n1K w - - 0 2 illegal: No possible last move, all moves rejected
K7/N1B2knQ/8/1Q4q1/P1P1p1rp/1BN1Pnpr/RN1Rq2p/nqr2b2 w - - 0 1 illegal: No proof kernel
N2b2BB/1b5p/1rb1p1N1/p1R1PQQ1/pP1R4/nP2N1K1/q3knb1/b2n4 w - - 0 1 illegal: No proof kernel
nrKn1k2/5qR1/5pr1/P1PqBP2/2BN2pN/5nQR/pN4pb/n3n2Q w - - 0 1 illegal: No proof kernel
1b1NQ3/PN5k/1N1r3n/3qB2R/p1bp4/qB2Qpnb/2PP1pR1/Kb2b3 w - - 0 1 illegal: No proof kernel
q3kn2/2p1rp2/2b2PB1/P1rR1pQ1/R2B2b1/N1qP2b1/NQp4K/qQ1q4 w - - 0 1 illegal: No proof kernel
B2Q4/q3nNk1/1q4pr/Qq3pb1/1p3P1p/N1R1Rn2/rP2KBnP/6Bq w - - 1 3 legal: proof: e4 b5 a4 bxa4 g4 d5 Qe2 dxe4 Qa6 Bf5 Qb6 Kd7 Qb4 c5 g5 cxb4 g6 f6 Ne2 Be6 Ng1 Bf7 gxf7 Kc7 Ra2 Kc6 Ra1 Kd7 c4 Ke6 d4 h5 f4 a5 c5 e3 c6 g6 c7 h4 c8Q+ Nd7 Qc7 a3 Qc3 a2 Ke2 f5 Kf3 Kf6 d5+ e5 d6 a4 Nh3 a3 Bg2 e2 Re1 Ne7 Qd3 e4+ Ke3 Bh6 f8B Ne5 d7 Bg5 Bh6 Nf3 Bf8 Rh6 Qb5 Qb6+ Qc5 Ra5 d8Q Kf7 Bd2 Qb5 Rc1 e1N Rc3 Qb6 Bh1 Ng2+ Ke2 e3 Be1 Kg8 Bf2 Kh7 Kd3 e2 Qe5 Ra7 Qa5 e1Q Bg1 Qc1 Ke2 Ra6 Re3 Qcc5 Bg7 Ra8 Bd4 Qd5 Bc5 Kg7 Rc3 Ra6 Bcf2 Qdb5+ Rc4 Bf6 Ng5 Ra8 Nf7 Bg5 Nd2 Ra7 Re1 a1Q Nb1 a2 Na3 Qc1 Kd3 a1Q Re3 Qcb1+ Ke2 Qe4 Qd3 Ra8 Rc5 Qeb7 Rc3 Q7a7 Qa4 Nfe1 Nc4 Qab7 Qd8 Ra6 Qa3 Q7a7 Qa4 Nf3 Qa3 Nge1 Qa2 Nd2 Ba8 Qb1 Qa1 Qe4 Ra3 Qh1 Rac3 Ndf3 Qa3 Ng2 Qa4 Q5c6 Qb5 Ra1 Qa5 Ra2 Na3 Qcb5+
3N4/q3R3/4p1rQ/nb2QKR1/B1PpQ1p1/B2Pbpq1/1bnk1P2/qb2N3 w - - 1 2 illegal: No possible last move, all moves rejected
2B2b2/Q1pN1qR1/1BPqR1B1/3pp3/1N4r1/3q1p2/QP1P1rr1/1nKrkb2 w - - 1 2 illegal: No possible last move, all moves rejected
2B1kB2/1np2bbN/N1P1p3/1qp2R2/1nPN2b1/3RQqQr/1K2pP2/3bq3 w - - 1 2 illegal: No proof kernel
4Q3/1p2qKbQ/1PNN1pP1/2rB3R/q1rp4/r2k2N1/1p2b1Pq/B2r2Rn w - - 0 1 illegal: No proof kernel
5QrB/3r1B1p/1N4Q1/4nqr1/K1PpR2p/2rpR1qn/B1bP3P/k4n1N w - - 0 2 illegal: No proof kernel
rbrR4/Q1qn2r1/P2R3R/2r1BpQ1/3bp1q1/p1pN1b1K/2P1P1N1/k6B w - - 0 2 illegal: No proof kernel
rb2q1N1/1KN1PRpk/pRp2r2/5P2/qB2p3/1B4bb/1b1QP1NQ/5n1r w - - 0 1 illegal: No proof kernel
3QRn1N/br1N3q/Rq6/3pB1Pn/Pk1np1K1/n2P1N1B/1pp3b1/5Qq1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c4 gxh4 Qa4 b5 Qa3 Ra5 Qf3 b3 Qe2 b4 Qd1 Rb5 cxb5 Ba6 Ne2 Bb7 Ng1 Bc8 Ke2 c5 a4 d5 g4 Kd7 f4 Kd6 b6 e5 b7 h5 f5 b2 d3 h3 g5 h2 f6 h4 f7 c4 Ke3 Kc5 Nf3 b3 Bd2 c3 Qe1 c2 Bc3 h3 Kf2 e3+ Kg3 e2 Ra2 e4 Ba5 Rh7 Qc1 e1N Bb6+ Kb4 Be3 Nd7 b8N Bc5 f8Q Ngf6 Ne5 Qb6 Qd8 Nh5+ Kg4 Nf3 Nf7 Nf8+ Nd7 Nd4 Nd2 b1N Nh8 Na3 Bf4 b2 Ra1 Rg7 Be5 Rh7 Nf3 Rf7 Rg1 h1Q Rb1 h2 Bh3 Re7 Qf1 Rh7 Rg3 Qg1 Rd1 h1Q Rd2 Qd6 Rf2 Ba7 Rh2 Qb6 Rgg2 Qe3 Rf2 Rg7 Nh4 Re7 Rf6 Qf2 Rg6 Qf7 Re6 Qh7 Rf2 Rg7 Rff6 Rf7 Nf3 Qg1+ Kh4 Rg7 Re8 Re7 Nb8 Rb7 Rfe6 Qc5 Ra6 Bg4 Nd7 Qb6 Nh2 Bd1 Nf3 Be2 Qg2 Bf1 Kg4 Qf2 Qg1 Bg2 Qf1 Qg1
1q1B1QRb/1bp1pQ1r/rQ2pN2/2P3b1/k1K2n2/P2N1p2/b5qP/1B3r1R w - - 0 1 illegal: No possible last move
1bqQ4/p1r5/2NB3p/Q3NBnr/pq1PK1P1/1q1nBRrk/P3p3/1q3R2 w - - 0 1 illegal: No proof kernel
rKN2qQ1/1n1pppp1/rn2N2P/2P1RQ2/q7/B1kPR3/1q2Q3/r3rB1b w - - 0 1 illegal: No proof kernel forced: wxDB
1r4nk/3b1Q2/2p1BpR1/r1BN2PB/3R3q/2bp2Qp/n4pPP/n4NbK w - - 0 1 illegal: No proof kernel
3b4/1pN1Nn2/1r1P4/1r5b/kNP1nK1p/1pR3p1/q1p1BQPR/b1Qn1B2 w - - 0 1 illegal: No proof kernel
1q1bQ3/p2BPB2/3k1p1R/4n1pb/1N3r2/Pp4N1/p1Pn1QrQ/r1K3Rn w - - 0 1 illegal: No proof kernel
3rB2B/k4nbn/qp2B2R/P2KPp1N/1pPNpb2/3p1b1Q/1R3r2/q5Q1 w - - 0 1 illegal: No proof kernel
k1K3B1/q1Qpbp1R/rq3P1q/1N1p3b/4r1p1/PN6/1p1n1BPQ/2Q2Rn1 w - - 0 1 legal: proof: d4 g5 c4 e6 b4 g4 h4 Qg5 d5 exd5 hxg5 a6 b5 axb5 Nf3 bxc4 Ng1 c3 f4 Kd8 Kf2 h5 Ke3 b5 Kd4 c5+ Ke5 Kc7 e4 Kb7 f5 c2 a3 c4 g6 c3 g7 b4 Be2 h4 Bd3 h3 Bf1 b3 Qe1 b2 Bd3 h2 Nf3 Nf6 g8Q Be7 Qh7 Ra6 Nfd2 Ka8 Nb3 Re8 Be3 c1Q Bf2 c2 Nc3 Qh6 Nb5 c1Q Bb1 Qc4 Qc1 Qa4 Rf1 h1Q Bc2 Qg7 Qh2 Qh6 Bb1 Qg1 Qc7 Nh5 f6 Ng3 Bc2 Qb4 Rae1 Bb7 Re3 Ne2 Rh3 Qc5 Bd3 Qa7 Rh4 Qhe3 Rh7 Qh1 Qc1 Ng1 Bc2 Bc6 Bd3 Qeb6 Bb1 Bd8+ Kd6 Re7 e5 Re8 Qg3 Qh6 e6 Re7 Qh2 Bb7+ Ke5 Nc6+ Kd6 Re8 e7 Nd4+ Ke5 Bc6 Kd6 Ndf3 Bd3 Nd2 Bb1 Rg8 e8Q Rg5 Qe4 Re5 Qef4 Re4 Qe5 Bc7+ Ke7 Bd8+ Ke8 Be7 Qc7 Bd6+ Kd8 Bc5 Nc3 Bb5 Kc8 Bd3 Nb5 Be7 Qcg3 Rc4+ Qc7 Bd6 Rg7 Bg6 Bf5 Bh5 Bh7 Bb4 Bg8 Be7 Rh7 Re4
3n3r/2p1R3/B1Pp2qP/1pnrR1b1/3p1BQ1/2Qq1PK1/1pRr4/1b2NN1k w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f5 exf5 e6 Nd2 exd5 Nb1 d4 c4 Kf7 h4 Kf6 a4 Ke5 c5 Ke4 f6 b5 h5 b3 a5 g3 c6 b2 f7 g2 a6 Be7 f8R Nh6 a7 Bg5 Nf3 g1R Bf4 Rg2 Rh2 Nf7 h6 Na6 Rg8 Rb8 a8Q Nc5 Qa3 Ra8 Qb4 Ra3 Bc4 Rd3 Be6 Rd2 Re8 Rg3 Ng1 Rc3 Re7 Rcd3 Ne2 Kf3 Na3 Nd6 Nc2 Ndb7 Rh5 Kg2 Bh3+ Kh1 Rc1 Qg8 f3 Qc4 Qc3 Nd8 Ng3+ Kh2 Rh4 d6 Be5 Re3+ Ne2+ Bf4 Kf2 g5 Rh5 g4 Qf1 Bf5 Ne1 Bb1 Rc2 Qd3 Rg5 Rd1 Ng3 Rd2+ Qe2 Re4 Nf1+ Kh1 Rf5 Bh2 Bg3 Re5 Rg5 Rd5 Be5 Rd1 Qe4 Bf4 Rf5 Bg5 Bg3 Bf6 Rfe5 Bh4 Qf5 Bf6 Bf4 Rd2+ Kg3 Nb3 Qg5 Nc5 Kh4 g3 Bc8 g2 Ba6 g1Q Kh3 Rg2 Qf5 Rd2 Qd7 Qgg6 Qg4 Bg5 Kg3 Qc4 Re4 Qe2 R4e5 Qed3
1b4bR/N2q1N1Q/rn3R2/P1k2q2/p1BppbNB/6qp/QPKP3p/5n2 w - - 0 1 illegal: No proof kernel forced: bxDB
r4bK1/1B2q1Rp/1k1pR1n1/p3pn1b/Pp2n1Q1/2N1q3/N1P1Bq1P/QR6 w - - 0 2 legal: proof: d4 e5 e4 exd4 b4 c5 e5 cxb4 e6 f6 Bf4 Qe7 Be5 Qd8 g4 fxe5 g5 b5 f3 a5 f4 Ra7 f5 Rc7 Na3 Rc3 Nb1 Rh3 Qc1 Rh6 Qd1 Rf6 gxf6 Qc7 Nc3 Qb6 Nb1 Qd8 Kd2 Be7 Kd3 b3 Ke4 g5 Kd5 d3 a4 d6 Nd2 b2 Nb1 b4 Ne2 d2 Nc1 g4 Rg1 g3 Na2 g2 Be2 Nc6 Qe1 Qc7 f7+ Kd8 f6 d1N Qc3 Qa7 f8R+ Kc7 f7 Nh6 Re8 Nf2 f8Q Kb6 Qf4 Ne4 Qe1 Rf8 Qfh4 Qd7 Nbc3 b1Q Qhg3 Qc1 Qd1 Bh4 e7 Qe3 Qh3 Qa7 Qd7 Bf6 Ke6 Bg7 Qb1 Rh8 Qb2 Rf8 Rab1 Qb7 Qa1 Rh8 Rgf1 g1Q Rff8 Qgf2 Rg8 Bf8 Rg6 Bg7 Rg8 Qc7 e8B Ne7 Rf6 Ng6 Bf7 Bf8 Rg7 Be7 Be8 Qb7 Bf7 Re8 Bg8 Rd8 Bf7 Bf8 Be8 Ng8 Kf7 N8e7 Qe6 Qc7 Bc6 Bd7 Qh3 Ra8 Bb7 Bg4 Qh4 Nf5+ Kg8 Bf3 Re6 Bh5 Qg4 Qe7
r1BK4/2p1pQb1/1rpbb1Q1/PR3P2/pBPp1rRn/N3n3/1N2k3/1n4B1 w - - 0 1 illegal: No proof kernel
3bN1B1/P2N3p/4Bn2/P1n1Krpp/Q2n3P/p4R2/Qrq2Rp1/B1nk3n w - - 0 1 illegal: Other
k6N/4rPBb/1q2PN1p/2rR3r/4rppN/3Bnp1P/1R2r1np/3Q1KQ1 w - - 0 1 illegal: Other
R7/p1pkbBP1/1nb2QN1/1nrN4/npp3n1/BR2P2n/P1R1p3/2q1KQ2 w - - 0 1 illegal: No proof kernel
1R5r/rn2p3/b3p2p/1nQ2R2/1p1N2kP/n1rBQ3/n1PKPB1p/Q2Nq3 w - - 0 2 illegal: No proof kernel
1Nq1k3/NB3rrp/p1b4P/4n1pP/P1pb1Q2/K5B1/1p1r1RQ1/N3qR1r w - - 0 2 legal: proof: f4 e5 h4 exf4 b4 c5 g4 d6 h5 cxb4 c4 Nd7 c5 Ndf6 h6 Nh5 gxh5 dxc5 Rh4 c4 Rh2 Qd3 Rh1 Qd8 a4 f5 d4 b5 Kd2 g5 Kc2 a6 Kb2 b3 e4 f3 e5 f2 e6 b4 d5 f4 d6 f3 e7 Qd7 Na3 Qd8 Bf4 Qd7 Qd4 Ra7 Ra2 Nf6 Nb5 Bb7 Ne2 Bg7 Bg3 Bc6 Qf4 Qc8 Bg2 f1R Ned4 f2 Nc2 Re1 Rg1 f1R Na1 Rb7 Na7 Ng4+ Qe5 Rf3 Rf1 Rf7 Qf6 Ne5 Qf4 Rg8 Bh1 Bh8 Bf3 Rgg7 Bg2 Kd7 e8N Kd8 d7 Rd1 Nf6 Rd2+ Kc1 b2+ Kb1 Ke7 d8Q+ Ke6 Qd3 Ke7 Nd7 Ke8 Nb8 Rbd7 Qdf3 R7d4 Qf6 Rh4 Q6f4 Rh1 Q3e4 Rd6 Kc2 b3+ Kc3 b1Q Kb4 Rdd7 Raf2 b2 Ka3 Rd2 Qe2 Qe1 Be4 Rg6 Qef3 Bf6 Qg2 Rgg7 Bf3 Bd8 Be4 Bb6 Bd5 Bd4 Bf3 Bd7 Bb7 Bc6
n2B1K2/1pr1R3/2rR1Bk1/p2Qp2r/1b2P1n1/3PpN2/NPNQp3/3qqr2 w - - 0 2 illegal: No proof kernel
RRn1B3/3pNrn1/1Bp1Q1B1/b2pn2N/Pnr1p1P1/q4Q2/3pPK1k/3q4 w - - 0 1 illegal: Other
1BnK4/Q4P1k/1p1B2p1/1qRnnp2/br2PbRN/1n1p1Nq1/2p1B1P1/7Q w - - 0 1 illegal: No proof kernel
5kb1/n1p2p2/2p1PQ1N/1r2bP1K/1R2pRnP/3Nb2b/1B2p1rB/2QB1n2 w - - 0 1 illegal: No proof kernel
4krB1/4Nr2/P2p3p/B1p3p1/1Q1PR2p/1nP1KQ1b/r4Rnn/b3n1NQ w - - 1 2 legal: proof: g4 a5 e4 f6 b4 axb4 h4 d6 e5 Qd7 g5 fxg5 e6 gxh4 exd7+ Kf7 Ke2 e5 d8Q c5 f4 b5 a4 g5 a5 e4 d3 e3 f5 h6 f6 b3 Rh2 b4 Rh3 b2 Bd2 b3 Ra3 Nd7 Qc7 Ne7 Qb7 Ng6 Qc1 Ke8 Rh2 Bg7 Qb4 Nde5 Nc3 b1N Rf2 b2 Ra4 Rf8 Nd5 Ng4 Ne7 Nh2 a6 Rf7 Bg2 Bh3 Bd5 Rb8 Bc3 Nd2 Bc4 b1R Qe1 Rf8 Bg8 Rb2 Qf1 Nb3 f7+ Kd8 Qg2 Rb7 Qh1 Ra2 Bd2 Ba1 Bc3 Re8 f8Q Ra7 Qff3 Rf8 d4 Rc7 Ra3 Ke8 Kd3 e2 Ke3 Nd2 Rb3 Nf4 Rb1 Nb3 Re1 Bd7 Qc4 Ra7 Ba5 Bh3 c3 Rc7 Rb1 e1N Qb4 Rf7 Rc1 Rc8 Rcc2 Kd7 Rce2 Rcf8 Rg2 Ke8 Rg4 Ne6 Re4 Nf4 Rf2 Nfg2+
2n1BK2/4P1p1/NB4Rr/1p1kqn2/5Q1n/1pppP2p/QbbR2P1/q1N4N w - - 0 1 illegal: No proof kernel
7r/4Pp1Q/2q2QbN/pN1k1B2/3p2np/R1r4K/2pRPp1P/1rB1Q1br w - - 0 1 illegal: No proof kernel
2r3QN/1r1p1PN1/nN2pqp1/1p5P/4r3/B2r1pPk/pQ2Rn1b/1R1B2K1 w - - 0 1 illegal: No possible last move
k1K1QN2/2pq3B/rR1Q4/3p1R1n/p1P1pNq1/p5BP/B1pP3p/1bn4r w - - 0 2 illegal: Other
3Q2nr/1q1R2Bq/Bq2prn1/Pr1BK2r/1pR5/2r1bNk1/1P1QP3/3Nb2b w - - 0 1 illegal: No possible last move
1BBrrr2/1p1q2n1/Pk3q2/p2q2qq/b2nR3/1P1B1Nb1/PRK1QN1Q/2n5 w - - 0 1 illegal: Other
2q3k1/3N2B1/1b3RR1/2nP2r1/BNprn2q/1bP1pKrQ/1r2P2b/QR1q1n2 w - - 0 1 illegal: No proof kernel
1Q5n/pQKN2R1/1q1R4/QB1rq2p/b3b1n1/P2rk2P/1qPb1N1B/2nq2r1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 cxb6 Ba3 b5 Bc1 b4 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 g5+ Kg3 h5 f4 b5 f5 e5 a3 b3 h3 b4 f6 e3 f7 Ke4 d5 e2 d6 e1N d7 b2 Ra2 b3 Bc4 Nh6 Ne2 Bb7 Bd2 Nd3 Be6 Nc6 Qc1 Bb4 f8Q Qb6 d8Q Nf7 Qdd6 Rd8 Bf4 Bd2 Qc7 Rd5 Qd1 Nc1 Qc5 Rhd8 Qd7 Nh8 Kg2 g3 Nd4 g4 Nf3 Rd3 Qc7 R8d5 Rg1 Ba8 Qa5 Bb7 Kh1 g2+ Kh2 Ba8 Bg3 Ke3 Qb8 e4 Nc3 b1B Ne5 b2 Nd7 Ne5 Ra1 Ba2 Bg8 b1Q Qf3+ Kd4 Rd1 e3 Ne4 g1R Nf2 e2 Bf7 e1Q Be8 Bb3 Qh1 Rb5 Qhb7 Ba4 Bf4 Qb2 Bg3 Rh1+ Kg2 Rf1 Bh2 Ke3 Kg3 Rbd5 Rb1 Qc3 Rb4 Qb2 Rf4 Qe2 Rf7 Rh1 Rg7 Rg1+ Kh4 g3 Kg5 g2 Kf5 Nc6+ Ke6 Ne5+ Ke7 Qe1 Qc3 Ng4 Qa5 Q6d4 Kd8 Qe2 Rf1 Qd1 Kc7 Qe4 Nh1 Qed4 Rf6 Qe5+ Rd6 Rb5 Q7c8 Be4 Nf2 Rbd5 Qcb7 Re1 Nb6 g1Q Bb5 Rf1 Nh1 Qf2 Nd7 Qff6 Nf2 Rg1 Qc6 Qed4 Qcb6 Qe5 Q6b7 Qb6+
3N4/n1bpBbP1/1B1r3k/b2qKp2/nbrRB2b/1N3bQr/3P1P1R/q2Q4 w - - 0 1 illegal: No proof kernel
4r1Q1/K1RN1NNp/1Bb2q2/1n1n1P2/1R1b1b2/Q3nprn/Bn1bkP1P/2q5 w - - 0 1 illegal: Other
QR1b4/pQ5p/PQrR1r1P/5PnN/qNqn2b1/B3bBb1/8/1q1qk1rK w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 c5 fxg4 c6 bxc6 Ba6 c5 Bf1 c4 d4 Kd7 h4 Kd6 a4 Kd5 b4 g5 f4 c5 Kf2 e5 Kg2 g3 b5 c3 b6 g4 a5 e3 h5 Ke4 b7 c4 a6 e2 d5 e1Q h6 c2 d6 c3 d7 Nc6 b8Q Qh4 d8Q Nd4 Ne2 Nf6 Rg1 Rg8 Ra5 Be7 Ba3 Ke3 Qb7 c1Q Qbd7 c2 Nd2 e4 Qb6 Bd8 Qa4 Qb1 Qbc6 c1R Qdc2 Qd1 Qc7 Rg6 Qb2 Rc6 Qc4 Qa4 Qca2 Kd3 Nb3 e3 Nd2 Ne4 Nb3 Ng5 Qf7 Rgf6 Na1 Qbd1 Nc2 Kd2 Nb4+ Ke1 Qb7 Bd7 Nc1 e2 Rb5 Rac8 Rb6 Rc2 Re6 R8c6 Rd6 Bf5 Rh1 Be6 Kg1 g2 Qd5 Rd2 Rh3 Bc8 Kh2 g1B+ Kh1 g3 Bg2 Bg4 f5 Be3 Bf3 Rdc2 Qa8 Rd2 Qc5 Rc2 Qb6 g2+ Kh2 g1B+ Kh1 Bgf2 Qb3 Bg3 Ncd3+ Kf1 Qb1 e1Q Nf4 Rg2 Qb3 Qb1 Nh5 Qed1 Qf7 Ke1 Rh2 Bh3 Qfc7 Qhe4 Qcb7 Bg4 Rh3 Qd5 Rh2 Qc4 Rh4 Bh3 Re4 Bg4 Re8 Bc7 Rc8 Bd8 Rb8 Rg1#
2N3q1/2p1p1qb/kb1nr3/2P4n/1rq1PBB1/P1q2Rrr/R1Q4N/1KQn3N w - - 0 1 illegal: No proof kernel
3Nq1Q1/2pP4/1n1K2pR/2Bnr1P1/q2bN2n/rrPBk1rQ/b4R2/b3n2N w - - 0 1 illegal: Other
2K1Rn1R/2pqb1Q1/Qqr2q2/R3r3/1Br3Nb/r1P1pnP1/b2kP3/2NB3q w - - 0 1 illegal: No proof kernel
1q1q1rQ1/P2nB3/pp5k/Q1b1qr2/NR3r2/PP1Q1BRN/3nbb2/2K3qr w - - 0 1 illegal: Other
6Q1/2n1ppNb/1qP1b3/rB6/1kq1nBbQ/1B1qPP2/1R1b2n1/KN1n1r1R w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 Kd2 d5 c4 Kd7 Kc2 Kd6 Kb2 Kc5 a4 h5 g4 b5 g5 d3 a5 b3 g6 Kb4 g7 d2 a6 d4 a7 h3 c5 d3 c6 h2 Qc2 h4 Ra6 d1N+ Ka1 h3 Bf4 b2+ Ka2 d2 Qg6 Nf6 g8Q Ne4 Be3 Bh6 Qf6 Qb6 Qh4 Bg4 Bd4 Ne3 Qg7 d1N Qg8 Ng2 Nc3 b1B+ Ka1 Bd2 Na4 Ka3 e3 b4 Ne2 b3 Ra5 Na6 Rb5 Nc7 Nc5 Rh5 Be5 Rf5 Ne6 Bd3 Rg1 h1B Bf4 h2 Nc3 Bc4 Ng7 Be6 Bc4 b2+ Kb1 Rf6 Bb3 Rf5 Rb4 Ra5 Rf1 Rd8 a8B Rdd5 Bb7 Rf5 Ba6 Rf6 Bb5 Rf5 Kc2 Rf6 Kd3 b1Q+ Bc2 Qa2 Rb2 Rf5 Bca4 Qc4+ Kc2 Ne1+ Kb1 Ng5 Qgh8 Be4+ Ka1 h1Q Qb8 Qg2 Rh1 Qgf1 Qg8 Ng2 Bb3 Qfd3 Bg3 Rf3 Bh2 Bh7 Bf4 Ne4 Re1 Rh3 f3 Rh1 Qh8 Rf1 Qg8 Rf2 Rh1 Rf1 Nb1+ Kb4+
qB4r1/npbB1Qrp/PKR1R3/n1n2NkP/3Bb3/3Nb1nr/QP6/br6 w - - 0 1 illegal: No proof kernel
1K1q2qn/3p4/pB1NB3/1p2QQ1r/1P1P3P/1qr1RnbQ/N1rk2b1/4Rbn1 w - - 0 1 illegal: No possible last move, all moves rejected
bb1NQ1R1/2Br1qq1/k1pr1Pn1/p2b1BRp/4N3/1rP1qK2/n2Q3P/3nQ3 w - - 0 1 legal: proof: d4 e5 a4 exd4 g4 b5 g5 bxa4 g6 fxg6 Qd2 g5 Qd1 g4 f4 d5 Kf2 Kd7 b4 Kc6 e4 Kb7 c3 h5 b5 g5 b6 a5 f5 g3+ Ke2 g4 e5 d3+ Ke3 c6 e6 d4+ Kf4 d2 f6 g2 e7 a3 e8Q g3 Qf3 d1N Qfe3 a2 Qg6 d3 Qge8 d2 Qe1 Qc7+ Ke4 Qf7 Nf3 g1Q Ba3 g2 Bb2 Bd6 Qe6 Ne7 Qf5 Rh7 Ne5 Ng6 Kf3 Na6 Qf4 Rb8 Bd3 Nb4 Bf5 Ka6 Ba3 Bb7 Qg5 Qd4 Rg1 Ba8 b7 Rd8 Bc1 Bb8 Qh6 Qdd7 Ba3 Qg7 Nf7 Qe8 Qhe3 Rd6 Nd8 Qef7 Qh6 Rh8 Qf4 Re8 Qh6 Re7 Qf4 Red7 Qh6 Nd5 Bc5 Nb4 Bb6 Ne3 Bc7 d1B+ Kf2 Ba4 Nd2 Bb3 Kf3 Nd1 Ne4 Bd5 Rc1 a1R Qhd2 Ra3 Rc2 Ba7 b8Q Na2 Rb2 Rb3 Qc8+ Rb7 Rb5 Bb8 Rc5 Re7 Qd7 Rb3 Qe8 Red7 Bg4 Bc4 Rg5 Be6 Bf5 Bd5 Rf1 g1Q Rf2 Ne7 Rfg2 Ng6 Qd4 Nf8 Rg6 Qh7 Rg8 Qhg7 Qdd2 Ng6 Rg5 Qe3+
1Q2nK2/1pR1n2B/bPp1b3/P1N4r/q1PbN2n/2B5/2kpQR1r/1n1nrN2 w - - 0 1 illegal: No proof kernel
r2nbkbB/2RR1bR1/N1QKp2p/2Prn2n/1b5P/N1p1Pq1Q/6B1/2r4b w - - 0 1 illegal: No possible last move, all moves rejected
4qB2/R3N2p/1n1b3P/rBp1K2b/1bQR3b/1p1Q1q1b/1PrN1PQn/2k2q2 w - - 0 1 illegal: No possible last move, all moves rejected
2n1bB1k/Qqpr3n/4b1pQ/2P3n1/1RbP3p/2b4P/Kqr1RN2/2Q2BbN w - - 0 1 illegal: No possible last move
bq2r3/2n4N/1kP1Qb1q/1Nn1p2R/p1p1P3/n2Rn1B1/q1PnB3/rQ2B2K w - - 0 1 illegal: Other
B1r1b2b/pQp1q3/1nPq1Rr1/np3Kn1/R1b5/1P4nN/N2B1n1P/Q2B1k2 w - - 0 1 illegal: No proof kernel
2n1b2Q/pk1q1b2/1r1p2pQ/1bRP4/1rQ1PN2/Nn1B2rK/1q1R1bP1/6Bb w - - 0 1 illegal: No proof kernel
nr5n/1B3BP1/2rppN2/1nqPk3/3R1q1R/N1prbr2/4Pr2/K2QBbQ1 w - - 0 1 illegal: No proof kernel
1Bbb3q/ppbr2q1/4r3/1N1KQ1RR/PP1nB1PN/Q1bnkn2/B3bp2/8 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 d5 h5 dxc4 h6 gxh6 Nf3 h5 Ng1 h4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 b4 f5+ Ke5 h5 g4 c5 a4 h3 e4 h4 d4 c3 d5 h2 d6 h3 d7 c4 Qd6 c2 Qd5 c3 Qd1 Rh7 Bc4 Be7 Ne2 Qc7+ Ke6 Bd8 e5 Ne7 Bd5 Nec6 Bc4 Nd4+ Kd5 Nbc6 e6 Ne5 e7 Nef3 Ba3 c1B e8B c2 Qd3 Bb2 Qe3 c1B Ng3 Bc3 Rd1 h1Q Qe4 h2 Ba2 Rh6 Nh5 Re6 Bb2 B1d2 Na3 Be1 Rd2 Bg3 Bg6 Qe5+ Kc4 Qg7 Kd5 Rb8 Re1 Ra8 Re3 Qa1 Bh7 h1N Rh2 Nf2 Nb5 Nd3 Bc1 Qb2 Rh1 Qh2 Qe5 Qh4 Bg6 Bh2 Ng3 Qhh8 Bb2 Bf6 Ba3 Nc6 Qe4 Bcd4 d8Q Nfe1 Qc7 Bb6 Nd6 f3 Nf1 f4 Bh5 Bd7 Bb2 Rd8 Nd2 Bc8 Bg6 Rd7 Be5 f2 Bf5 f1B Nf3+ Kh6 Qc4 Be2 Qb3 Bd4 Qc3 Bd8 Qa3 Bc3 Bh7 Nd4 Re4 Rf7 Nb5 Rd7+ Bd6 Nc5 Re5 Ncd3 Rg1 Bg3 Be4 Bh2 Rf1 Bg3 Nh4 f3 Nf5+ Kg5 Rh1 Kf4 Rh5 f2 Nh4 Ke3 Reg5 Rf7 Be5 Nef3 Qd6 Re8 Qf6 Re6 Bb8 Bgc7 Qe5 Rd7+
1b2B1n1/pr1q3n/bB3k1P/1R2p3/N2qp1Qq/1K1NP2q/P1q2b2/3BQ1rR w - - 0 1 illegal: No proof kernel
BN2qn2/2B1R1P1/4N3/2RQbbpQ/qNb3Pp/2qb1p1P/1k6/n3nrrK w - - 0 1 illegal: Other
B1q3R1/n1p2p1n/nr1RQP1N/3b2b1/3p4/k2PB1B1/2rNPQq1/1q1bK1q1 w - - 0 1 illegal: No proof kernel
2B1KN2/6Pq/1p3b1r/B2qnppn/1r2bP1b/N3B1PR/3Q1R1r/k2r1q1Q w - - 0 1 illegal: Other
n2Q1nbN/1Q1BBK2/2qR3r/3nR3/2N2ppp/1r2qP2/Prn2bbP/Nk6 w - - 0 1 illegal: No proof kernel
1N1b2q1/2p1RN2/b1P1q1pR/3r1BBQ/1Qn2KP1/5pP1/4knNb/3rqr1b w - - 0 1 illegal: Other
1k1b1r2/2rQRNb1/2bBQ1R1/4Pr2/1pB2prp/q1n2N1K/5P1P/1R2q1qn w - - 0 1 illegal: No proof kernel
2NQ3q/3RB1r1/7b/3K1Npk/2pQ1n2/pBPn1R1P/Qb2b1P1/n1qrr1b1 w - - 0 1 illegal: No proof kernel
n2q4/1b1rN3/q1pr1kqN/b1Q2p1n/1B1R2np/P1P5/4n2P/bB1BR1KQ w - - 0 1 legal: proof: e4 d5 b4 dxe4 f4 g5 b5 gxf4 b6 axb6 Kf2 b5 Ke1 b4 Kf2 e5 d4 Ke7 g4 b5 g5 h5 g6 b3 a3 c6 d5 b4 d6+ Kf6 g7 e3+ Kg2 h4 d7 e2 Qd3 e1N+ Kf2 e4 Qg3 e3+ Ke2 f3+ Kd1 f2 Ke2 b2 Qg2 b3 Qe4 Bb7 Bg2 Nh6 Kf1 Ra7 g8B Ng4 Bd2 Na6 Ra2 Nc7 Nh3 Na8 Nc3 b1Q Bf3 b2 Bh7 Bg7 Ng5 Ng2+ Bd1 Nf4 Qc4 Rg8 Qc5 Nh5 Kg2 f1N Kg1 e2 Be1 Nfg3 Nd5+ Ke5 Ba5 e1B Ne7+ Kf6 Bb4 Qc1 Be4 b1Q Rb2 Bc3 Rb3 Ba1 Rd3 Qf4 Bf5 Qc4 Rd4 Qa6 c3 Bf8 Bd3 Rg6 Bc2 Qdb6 d8Q Ne2+ Kf1 Qc7 Qdd5 Qd8 Rg1 Rh6 Qh1 Rg6 Kg2 Rh6 Bh7 Qc2 Re1 Qg6 Nf5 Bd6 Ne7 Bc7 Kf1 Ba5 Kg2 Qgg8 Bb1 Qg6 Kf1 Kg7 Kg2 f5 Nf7 Kf6 Kf1 Bc8 Kg2 Rd7 Kf1 Bb7 Kg2 Rh7 Nh6 Rd6 Kf1 Neg3+ Kg1 Rf7 Nc8 Rfd7 Ne7 Ne2+
2nb1Bk1/n2r3R/1N3pB1/3N1bp1/1r2nbQq/2p2Q1K/R1PbPP1B/r2q4 w - - 0 1 illegal: No possible last move, all moves rejected
2QQ2n1/1pbr1p2/1Q4qB/nPp1N3/5rq1/RNn1R1B1/bKPq1P2/1bn3k1 w - - 2 3 legal: proof: e4 d5 b4 dxe4 h4 g5 Nf3 gxh4 Ng1 a5 Bc4 a4 Bb3 axb3 d4 Kd7 Kd2 Kc6 Kc3 Kd5 g4 c5 a4 e5 b5 h5 a5 h3 g5 h2 a6 b2 a7 h4 g6 h3 g7 e3 Kb3 Ke4 d5 e2 d6 e1N d7 Qf6 d8B Nd3 Be7 Rh4 Bd8 Qg6 Qh5 Nc6 Ra5 Rf4 Qh7 Bd6 Ka3 Bc7 Qh6 Be6 Qh7 Ba2 Ra6 Na5 Ne2 Kf3 Qh6 Kg2 Re1 h1N Bg5 e4 Nd4 h2 Nd2 b1B Nc6 e3 Bh4 e2 Ne5 Ng3 Nb3 Ne4 Bg3 Rd8 a8Q h1Q Qc8 Qhh5 Ra7 Qgg4 Qb6 Nc3 Be3 Nc1 Kb2 Qhg6 Ra6 Ne7 g8Q Rd7 Qgd8 Ng8 Ra7 Ra4 Bh6 Rf4 Rd1 e1Q Rd3 Kf1 Re3 Kg1 Ra8 Qd2 Ra7 Nc6 Ra3 Na5
2Q5/2PpNn2/1p1R1RB1/Q1K1N1q1/rPbP2q1/2b5/n1nBrR1p/bkn1r3 w - - 0 1 illegal: No possible last move, all moves rejected
3kr1r1/1KN2Bp1/P1bqqR2/1N3p2/2n5/QpN1Q1P1/1P1qRBnr/1n1q2b1 w - - 0 1 illegal: No proof kernel
2B2Q2/qN1p2rN/pBRN1nq1/P1nq3P/K5b1/1rrPR2n/pb3Q2/1k5r w - - 0 1 illegal: No proof kernel
4B2k/PQpbp3/2QnP1qr/bqB4N/5NK1/b2np2n/R1PbR2r/R6r w - - 0 1 illegal: No proof kernel
1Q3R1q/1NKp1Q2/2B1p2r/P1r3p1/1bn5/NNB5/b2PrqPb/bnRqk3 w - - 0 1 illegal: No proof kernel
Br3nR1/KQ4Q1/qnpPn3/B3p3/bN1pR3/1bnrPknR/n1P2N2/2b5 w - - 0 1 illegal: No proof kernel
2nBNQB1/3b3P/3bp2R/2r1p2n/1K1nrR2/rnp1qQrN/2P1Pr1k/4Q3 w - - 0 1 illegal: No proof kernel
2n1NK1Q/2n3nP/Qn5N/qpk2p1r/3rnP2/1R2npqQ/bP5B/1B4bR w - - 0 1 illegal: No proof kernel
1RQ5/nR1B2rr/K1nrb2k/p4Ppr/2r2bP1/Q1p4B/P1N5/Bn2q1Nn w - - 0 1 illegal: No proof kernel
4B2k/4np2/R3nrp1/4B2K/Q1bnP1PN/1p3b1r/q1QbRPNb/b2n1Q2 w - - 0 1 illegal: No possible last move, all moves rejected
2K1Bb2/4P1pb/1bNp2r1/Qn3R1r/2N2QR1/q1bN1pP1/k1rP3r/rn4B1 w - - 0 1 illegal: No proof kernel
r1rR4/p4n1B/nRb3N1/1pk3n1/5qBb/Pp2rQBr/nPN1bP2/K5Q1 w - - 0 1 illegal: No proof kernel
rk2q1r1/3BKn1p/1Nb1p2P/2QrP1Pq/n3Q2p/R4R2/b1b4N/2B1br1R w - - 0 1 illegal: No proof kernel
3b2bq/QK1RpN1n/2r3pp/1b3nrP/r1q5/1N1RB1P1/1Q1bP3/B1Br3k w - - 1 3 legal: proof: c4 f5 b4 d5 g3 dxc4 b5 f4 b6 f3 Bg2 fxg2 Nc3 axb6 Nb1 b5 Bb2 b4 Ba3 Nc6 Bc1 Nb8 a4 Kf7 d4 Kf6 Kd2 Kg5 Ke3 Kg4 Ke4 b5 f4 c5 h4 b3 h5 b2 f5 b4 a5 b3 f6 c3 d5 c4 f7 c2 d6 c3 Kd5 Nf6+ Kc5 Rg8 a6 Bd7 a7 Nc6 Rh3 Nd4 Qd3 Bb5 d7 Nf5 Bh6 c1R Bf4 c2 Nd2 b1B Ra3 b2 Nb3 Ba2 Qd4 b1R Nf3 g1B Rh1 h6 Ng5 Nh7 Kd5 Rd1 Qd2 c1Q Be3 Rc8 a8Q Ra1 Qa7 Rc6 Bf4 Qc8 d8B Bb6 Rg1 Ba5 Bb6 Qc3 Bd4 Bd8 Qb2 Qa8 Bc1 Qc4+ Ke5 Qc8 Bde3 Qa8 Nd4 Qc8 Rd3 Bb3 Rf1 Ra4 Rf3 Ba2 Nb3 Qa8 Rd7 Qc8 Ne4 Kh3 Ng5+ Kg2 Bg1 g6 Rfd3 Kh1 Bd4 Rc5+ Ke4 Bg7 f8B Bf6 Nf7 Bg5 Bg7 Bd2 Bh8 Rc6 Ke5 Rf8 Be3 Qc3+ Kd5 Qg7 Qa3 Qg8 Ba1 Qh8 Nd6 Rf6 Qb2 Re6 Nf7 Ree4 Rc7 Rg4 Rd7 Rg5 Nd6 Rcc4 Nc5 Qc7 Qb6 Ba6 Qa7 Qb8 Kc6 Qb4 Qd4 Bb5+ Kb7 Rc2 Qb2 Bg8 Nb3 Rc6 Nf7 Qc4
n2r3b/2NQB1n1/1kprq1P1/2q1pBR1/b5pq/RN4Q1/2PK1bP1/q4Nb1 w - - 0 1 illegal: Other
1n3r2/nn4qP/2Qb1Rp1/1q1N1BPq/BB1b1p2/p1K3Qp/1R5P/kb2r2N w - - 0 1 illegal: Other
nQ1rn1r1/n1Pb1Npk/1QbB2Rp/7P/6pq/2K3PB/3bNqpq/3B1R2 w - - 0 1 illegal: No proof kernel
2Nn1Q1n/KB2q2q/1P4k1/pqQ3p1/1p1pN3/3PRrP1/NB2rr1n/3bb1R1 w - - 0 1 illegal: No proof kernel
1RKr2Nq/1pp3b1/3Q2Np/4Rp2/1r4PP/nqBb1PQ1/q3nn2/bB3kB1 w - - 0 1 illegal: No proof kernel
q1R4q/kBr1bpn1/1N1pq3/1RpPN1Qb/nn3pB1/3b1PR1/2P2r2/1K1Q4 w - - 1 3 legal: proof: h4 g5 b4 gxh4 b5 e5 Bb2 a6 Bd4 axb5 Be3 b4 Bf4 exf4 g4 b5 a4 c5 d4 h5 Kd2 d6 Kc1 Kd7 e4 Kc7 e5 Kb7 e6 b3 a5 b2+ Kd2 h3 a6+ Ka7 e7 h2 e8B h4 g5 h3 g6 b4 g7 b3 d5 Bg4 Ra4 Bh5 Ra3 Nh6 g8Q Nf5 Qg5 Ng7 Nf3 Nc6 Nd4 Nb4 Nf3 Be7 Bfb5 Rc8 Bbd7 Rc7 Bg4 Qa8 Nc3 b1Q Na4 b2 Bc6 Re8 Rf1 h1Q Ne5 h2 Nb6 Qa1 Re1 b1N+ Kc1 Qe4 Rg3 h1B Bb7 Bg2 f3 Bf1 Re3 Bd3 Re1 Qad4 Re3 Nc3 Kb2 Na4+ Kb1 Be2 Rb3 Bd3 Rb2 Qf5 Rb3 Qe6 Rb2 Na2 Rb5 Nb4 Qh4 Rg8 Rh3 Ne8 Ned7 Qd8 Bf5 Rc8 Na8 Rg3 Qg5 Qh8 Bg4 Ng7 Ne5 Rg2 Rg3 Kb8 Nb6 Rf2 a7+ Kc7 a8R Qde8 Raa5 Kb8 Bc6 Qef8 Ra7 Qfg8 Rc7 Qe8 Bb7 Ka7 Rd7 Rc6 Rc7 Qa8 Rc8 Rc7
4Rn1k/4Pb1q/p1rBQ1pR/bp1rN2B/PK3b2/1P6/2Np2n1/1nQr1Bq1 w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 g5 cxd4 g6 hxg6 Bd2 g5 Bc1 g4 Kd2 d5 h4 b5 c4 f5 e4 Kf7 a4 a6 b3 d3 Kc3 d4+ Kb2 d2 c5 d3 Ka3 g6 h5 Kg7 e5 g3 e6 g2 e7 f3 c6 f2 c7 f4 Nf3 g1B Qe2 d1R Nbd2 Nh6 Nh4 f3 Nb1 Ng4 Bh3 f1N Bg2 f2 Bd2 Nge3 Bb4 Nd7 Bd6 Nd2 Kb4 f1Q Na3 Nb1 Nc2 d2 h6+ Kh7 Bf3 Ng2 Qe6 Bb6 Bh5 Qg1 Nf3 Rg8 Rh2 Kh8 h7 Bh6 Ne5 Nf8 Rh3 Bd7 c8B Be8 Rh1 Bf7 Rh4 Na3 Rc1 Bf4 Bb7 Rc8 Bd5 Kg7 Bc4 Rc6 Bf1 Nb1 Rh1 Qb8 Rh2 Nd7 Rh1 Rd8 Rh3 Nf8 Rh4 Kh6 h8Q+ Nh7 Nc4 Qa7 Nd4 Ne3 Bc5 Rd5 Qhc8 Rcd6 Bg4+ Kg7 Qed7 Qg3 Qe6 Bc7 Ne5 Nf8 Bf3 Rb6 Bd6 Qh3 Rc2 Qh2 Rh8 Qh6 Bh5 Ng2 Rh7+ Kg8 Rc6 Qg7 Rh6 Qh7 Rc1 Bd8 Qc3 Bc7 Qb2 Bd8 Rc8 Rc6 Nc2 Kh8 Qc1 Qg1 Rb8 Bb6 Re8 Ba5+
Q1n1n2R/BbppNq1q/p1q3PQ/K2P1r2/B1P2p2/1r1k2b1/1B1N4/n4R1b w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 h5 bxa4 h6 gxh6 Nf3 h5 Ng1 h4 c4 Ke7 e4 Kd6 b4 Ke5 g4 Kd4 e5 f5 e6 h5 d3 a3 Kd2 a6 b5 a2 b6 f3 e7 f2 e8Q h3 b7 h4 g5 h2 g6 h3 Qde1 Nf6 Bg2 f1Q Qg3 Qe7 Bc6 Rh5 Ba4 Qh7 Qg5 Nc6 b8B Ne7 Nc3 Bb7 Bb2 Nc8 Qh6 Bd6 Re1 Qf3 Rf1 a1N Qg8 Bg3 Ba7+ Nb6 Qgf8 Rb8 Qg8 Ne8 Nd5+ Kc5 Kc3 f4 Ne3 Qd5 Nf3 Qdf7 Nd5 Re5 Nd2 Rf5 Rhg1 h1Q Ne7 Qhd5 Rh1 h2 Qh8 Qc6 d4+ Kd6 Kb4 Nc8 Rhg1 h1B d5 Ba8+ Ka5 Rb3 Q8f8 Bb7 Rg2 Rb6 Rh2 Kc5 Bc1 Kd4 Bb2+ Kd3 Qh8 Rb3 Q8f8 Nb6 Rh3 Nf6 Qa8 Nc8 Qg5 Qhg7 Rh8 Ne8 Qh6 Qh7
1r6/Qp3N1N/1q2Bp2/P2rBp1R/2bpb1Rq/rPb1q1QK/1n1P1Q2/1k3n2 w - - 0 1 illegal: No proof kernel
3NR1bQ/3PBN1B/3rR2b/2pb3p/B3p1pP/nnq1P3/2Q5/n2Knkrn w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 h4 Kd7 a4 Kd6 f4 Kd5 d4 Ke4 a5 e5 f5 c5 d5 g5 d6 b5 d7 h5 f6 c3 f7 c2 a6 g3 e3 b3 a7 g2 Kd2 b4 Be2 b2 Ke1 b3 Ra5 g4 Rh3 Qf6 Qd6 Ne7 Qa6 Nf5 Bf1 Bh6 f8Q Ng3 Bd2 c1N Rh1 Nc6 Bc3 Nb4 Nh3 Kf3 Kd1 g1N Bd3 Kg2 Bh7 e4 Ng5 Nf3 Qc4 Ne1 Na3 b1N Nc2 b2 Nf7 Nb3 Ra6 Na3 Rf1 b1B Nd4 Nh1 Re6 Nbc2 Nc6 Ba2 Ncd8 Bb7 Bd4 Qg7 Bf6 Bd5 Be7 Nca1 Qc1 Rb8 a8B Qc3 Bc6 Rb6 Bb5 Rd6 Ba4 Rg8 Qg7 Rf8 Rf3 Kg1 Qh8 Kg2 Rf5 Kg1 Rfe5 Kf1 Ng5 Rf2 Qc2 Rg2 Ngf7 Rg1 Bf6 Bg5 Re8 Bh6 Be7 Nd4 Ng5 Bg8 Re6 Bd5 Ngf7 Ndb3
b4b2/rN6/1kpqN3/pB2rr1r/Rp1b2P1/1PQ2p1r/1BR2P2/nK2Qn1N w - - 0 1 illegal: No proof kernel
2Nr1b2/3p1b2/4b1p1/1bQ1K1qr/2BP2Qp/n1P2pPr/1kNQ1n2/R1b1B2R w - - 0 1 illegal: No proof kernel
R1BQQr2/nN5R/p2pr3/1p2bkqn/2b1R2r/1P1Pp3/P1b1Nr2/3rK2B w - - 2 3 legal: proof: h4 g5 e4 gxh4 e5 c5 e6 c4 b3 c3 Bb2 cxb2 Nc3 fxe6 Nb1 e5 Bd3 e4 Bc4 Qc7 Bf1 Qd8 f4 Kf7 g4 Ke6 c4 b5 d3 h5 g5 d6 g6 h3 g7 h4 c5 h2 c6 h3 c7 a6 Na3 b1B Qc2 e3 Kd1 e2+ Kd2 e1R Bg2 Nc6 Bf1 Rh4 Qc5 Nf6 g8R Nh5 Rg2 Bc2 Qg5 Bg7 Nc4 Be5 Ne2 Na7 Na5 Bb7 Qg8+ Kf5 Qe8 Bd5 Rg8 Bc4 c8B+ e6 Bg2 Qg5 Nb7 Rd1+ Ke3 Rd2 Kf2 Rb8 Rhe1 h1R Qd8 Rg1 Bh1 h2 Rh8 Rg3 Rh7 Re3 Rac1 Kg4 f5 Ra8 f6 Kf5 Bd5 h1R f7 R1h2+ Kf1 Rb8 Bh1 Ra8 Red1 Rg2 Ke1 Rf2 f8Q+ Bf6 Rd7 e5 Qg8 e4 Qge8 Bb1 Rc3 Bc2 Rb1 Be5 Rd1 Ref3 Rc1 e3 Rh7+ Be6 Rc5 Rff4 Rcc7 Re4 Rcd7 Bc4 Rh8 Bd4 Rdh7+ Re6 Rg8 Be5 Rgh8 Bb1 Rc3 Bc2 Rg8 Bd5 Rc4 Rb8 Re4 Bc4 Nc5 Rb7 Rgh8 Rf7 Nb7 Rf8 Qee7 Bf6 Qdc7 Bd1 Bd7 Rf7 Ra8 Bc2 Qe8 Be5 Qcd8 Rf8 Bc8 Rd1#
QKn3nb/BN1pR2p/3R2B1/bb2Q2P/1Q1P1N1P/1r2r3/r1pr2qp/n4k2 w - - 0 1 illegal: Other
bnQ4q/5Kp1/2N2pb1/p2P1r2/P1RrQN2/b1N3kn/B1R2pP1/Bb2n1r1 w - - 0 1 illegal: No proof kernel
Q5BB/5b2/qr4pq/b1P4p/N3ppnP/Q1NnrPkr/1RK3N1/1rr1R3 w - - 0 1 illegal: No proof kernel
2NQ3B/1n4b1/1nb2bB1/pbN2r1R/QpR1q1bK/RPP1q2p/Pp6/1r5k w - - 0 1 illegal: No proof kernel
3RbK2/2Q1Q1p1/3n1pP1/r1rR1q1N/N1kp2q1/br2Bn1B/1r3PPp/1r4R1 w - - 0 1 illegal: Other
1Q2Q2R/b1N2rqb/p1Kp1Q1q/r3R1bk/Pb2N3/3P1Pb1/1pBn3p/4Bn2 w - - 0 1 illegal: No proof kernel
B1B1r2N/q1p1QQB1/1R3K1p/k7/1nn1R3/1p1np1bn/2PqPn1P/N3rb2 w - - 1 3 legal: proof: d4 b5 g4 f5 b4 fxg4 d5 a5 d6 axb4 Qd3 Ra3 Qd1 Rd3 Bg5 Rxd6 Bc1 Rd2 f4 e5 Kf2 d5 Ke3 Kd7 a4 Kc6 f5 Kb6 f6 g5 f7 e4 Ra2 d4+ Kf2 b3 Kg3 d3 Rb2 b4 Nf3 h6 Bg2 Nc6 Ng1 Ne5 Qe1 Nf6 Nh3 Bd6 f8Q Rd1 Rf1 d2 Qf2+ Ka5 Rg1 Nd3+ Qf4 Re1 Nf2 d1N Nh3 N1f2 Nd2 Nd5 Qe7 Re8 Rb1 e3 Bb2 Qd7 Bg7 b2 Be4 Bb7 Bf5 Ba8 Kg2 g3 Kf3 g2 Rf1 Qd8 Bc8 g1Q Qff7 Bg3 Nf4 Bc6 Ng6 Ba8 Ra1 b1N Nh8 Na3 Rb1 Nc4 Rb3 Qd6 Rb2 Qa6 Rb1 Qa7 Nb3+ Kb6 Na1 Ka5 Rb3 Bc6 Rb2 Bd7 Rb3 Bh3 Rb2 Ne4 Rf2 Bf1 Kg4 Qh1 Kf5 g4 Rf3 Nef2 Rf4 Qg2 Re4 b3 Ra2 N5b4 Kf6 Bf4 Ra3 g3 Ra2 Qh1 Ra3 g2 Ra2 Kb6 a5+ Kb5 a6 g1N Ra4 Bg3 Ra5+ Kb6 Rc5 Qg2 Rc6+ Ka5 Rd6 Ngh3 Rb6 Qb7 a7 Qg1 a8B Qa7 Rh4 Qh1 Rd4 Qd5 Re4 Qd4+ Kf5 Qc3 Kg6 Qd2 Kf5 Ncb2 Kf6 Nc4
2Qb4/3q1b1K/1b2N2p/p1q1NPp1/1q1qpQPR/3RP2B/3r4/nkBNr1n1 w - - 0 1 illegal: No proof kernel
bN5b/Pp1q1Qp1/1P1K3k/R1r3bn/r2nr2p/1N4pP/2BQRr2/2q2BB1 w - - 0 1 illegal: Other
2Q1qK2/3b2n1/Br3NQp/pp1b1q2/1P1r1n2/5Ppb/3RNRP1/k1Brb1B1 w - - 0 1 illegal: No proof kernel
5b2/3r1b1Q/B3np1P/3Nprpk/R3P3/pBBRq1n1/P1KQq1n1/q4q1N w - - 0 1 illegal: No proof kernel
4n2B/4pqN1/2pQ3b/1pN1P1P1/1PqrbK1k/2Rp4/r3rnB1/1N1RnQ1r w - - 0 1 illegal: No proof kernel
8/1p1nBk1n/2nnp1RP/2p5/qNPp1bQQ/RNrbP2b/K1N1q1r1/7B w - - 0 1 illegal: No proof kernel
2nK1Q1b/B1R4p/B1pPN2r/q1n4r/b3R2N/p1P2q2/PbRp4/1Q3bnk w - - 0 1 illegal: No proof kernel
q2RBQb1/5n1p/pn1pr1p1/B5P1/1B1nqr2/1QR1PN1P/4k2b/Kb1N2n1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 exf6 Bf4 f5 Bc1 f4 Kd2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 Kc2 f5 Kb2 a6 c5 d3 h3 a3+ Ka2 d2 g5 Ke3 b5 f3 b6 f4 c6 f2 c7 g6 b7 f3 Qc2 Bd6 Qc6 Nh6 Rh2 Nf7 Qc2 Rf8 Bb2 d1B Rh1 Bh2 Nc3 d6 Kb1 a2+ Kc1 Nd7 b8B Nb6 Qb1 Be6 c8Q Bc2 Ba3 Beb3 Qb2 Bb1 Bc7 Ra7 Bg2 f1N Bb4 f2 Nf3 Ng3 Re1 f1Q Qa3 Qe7 Kb2 Qh1 Qd8 Bc4 Qb3 Qe4 Rc1 Kf2 e3 Ne2 Qb8 Ng1 Nd1+ Ke2 Rc3 Re8 Qa8 Re6 Qf8 Bd5 Bd8 Rae7 Rc8 Rf6 Bc7 Rf4 Rd8 Nc8 Bca5 Nb6 Ne5 Re6 Nf3 Bd3 Rb1 a1N Rc1 Nc2 Ka2 Nd4 Ka1 Bb1 Rc3 Qd3 Nd2 Bc4 Bc6 Qde4 Be8 Qhg2 Nf3 Qa8 Nh4 Qge4 Nf3 Nh8 Qg7 Re5 Ne1 Bg8 Qf8 Re6 Nf3 Nf7
Rn6/K1Q3n1/1NBNp3/2r2pp1/2b2rbq/kB1R1P1p/2qRP2P/n3bb1Q w - - 1 3 illegal: No proof kernel
1bNQnR1n/4pp2/1N6/2B1qNbb/K2pPR1Q/3P1Prr/1pBk2b1/3q2q1 w - - 1 3 legal: proof: c4 g5 h4 gxh4 b4 a6 b5 axb5 Nc3 bxc4 Nb1 c3 g4 b5 e4 c5 a4 h5 g5 d5 d3 Kd7 g6 Ke6 f3 Ke5 a5 Kd4 a6 c2 Kd2 c4 a7 c3+ Ke1 h3 g7 b4 Ra4 h4 Bb2 Ke3 Ra1 c1B Ne2 d4 Ng1 h2 Qc2 h3 Kd1 b3 Ra3 Qd5 Be2 Nf6 g8Q Nbd7 Ra6 Ne5 Na3 Bg4 Nb5 Bh5 Ba3 b2 Nd6 Ne8 Nc8 Bh6 Bc5 Bg5 Rf6 Ng6 Rf4 Qe5 Qb1 Rh6 Kc2 Nh8 Kb3 c2 Bd1 Kd2 Ne2 Rh7 Rg1 h1B Ng3 h2 Ka4 Bg2 Nf5 h1Q Qa1 Rb8 a8N Rb6 Qf8 Rg6 Nab6 Qh2 Rh1 Qg1 Qh6 Rgg7 Qa2 Rg6 Qd5 Rg8 Rfh4 Bf4 Qd8 Rg3 Rg4 Qg7 Qf6 Bb8 Qh4 Qe5 Rg8 Kc3 Rh3 Bg5 Rf8 c1Q Bc2 Qcd1 Qg4 Qd6 Rh4 Qe5 Qh3 Kd2 Rf4 Bg6 Qg4 Rhh3 Qh4 Bh5
b1n1N3/3nR3/2pBp2k/3q2pp/rbrNb3/2PQP1R1/1QB2q1P/K1Br3r w - - 2 3 legal: proof: g4 f5 b4 fxg4 b5 d5 b6 d4 c3 d3 Qc2 dxc2 Nf3 axb6 Ng1 b5 Bb2 b4 Ba3 Nd7 Bc1 Nb8 f4 Kf7 a4 Kg6 d4 h5 Kd2 b5 e3 b3 d5 e6 a5 g3 f5+ Kg5 a6 b2 a7 g6 d6 b4 d7 b3 f6 g2 f7 Ne7 Bd3 Kh6 Nf3 g1Q Nd4 g5 Na3 b1B Nab5 b2 Nd6 Bb7 Ne8 Nc8 Ra2 Qg3 Rg1 Ba3 Rg2 Rg8 f8B+ Rg7 Bd6 Qf2+ Be2 c6 Rg3 Rf7 Kd3 Rf5 Bd1 Rf4 Kc4 Qa5 d8Q Nd7 Kb3 Qf5 Qb6 Qe5 Qa6 Qe4 Qd3 Qh1 Bd2 c1R Bc2 Rd1 Bc1 Qhf3 Ne2 Rc4 Nd4 Qd5 Ra1 Rb8 a8Q Rh1 Qa4 Ra8 Qb5 Ra7 Qb4 Ba8 Qb7 Bb4 Ra6 Ba3 Rb6 Raa4 Qb8 Rd1 Rb7 Ne5 Re7 Nd7 Qb7 Rh1 Bd1 Bc2+ Ka2 b1R Qb6 Qg1 Qb2 Qf2 Qd2 Be4 Bc2 Rd1 Qd3 Rh1 Bd2 Rbg1 Bc1 Rd1 Ka1 Bb4+
5Br1/rq4PB/1Kn2QN1/2Rp1BpR/3p2P1/p1bP2N1/k1nbQpq1/1br5 w - - 0 1 illegal: Other
rQ2Q3/B3b2q/p1p1K3/2p1PB2/1pPn1bp1/1Pq1r1Nb/N2kB2R/2Rn2n1 w - - 0 1 illegal: No proof kernel
4n2k/R4pRP/pqb1rb2/P2B4/1Q2r2Q/p2qN1p1/Np1n2P1/1K1RbrB1 w - - 0 1 illegal: No possible last move
1R5r/kb4Qn/qqRqQrNb/1p1r2p1/1p1p2PR/2B3pB/P2P4/2KnN3 w - - 0 1 illegal: No proof kernel
r1n1kq2/3rB1r1/1Qpn4/2pp1K1R/bpNPp1Q1/1Nq5/2PbP3/1bB1B1R1 w - - 2 3 illegal: No proof kernel
1r2Q2n/1qR5/BpRp3k/1PN1n1b1/1K3pbN/Bb1q4/1P1Pp2p/1BQ2r1r w - - 0 1 illegal: Other
2NnQr1n/2p1bRp1/2b2r2/pp1rq3/1P1q3K/kB1PN1P1/p3RBB1/1q3Q2 w - - 0 1 illegal: No proof kernel
1nn5/QpBp3r/2r1QR2/1P2R1r1/PNbBp3/b2Pqpq1/2K1q1p1/2N3kB w - - 0 1 illegal: Other
3n1brk/pb1QBp1p/5n1r/RN3Pq1/1q6/PQ1qp2B/B2N1bPp/1R3K2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 cxb6 Bc4 b5 Bf1 b4 f4 b5 d4 e5 c4 h3 a3 h2 c5 e3 c6 e2 f5 e4 d5 b3 c7 b4 d6 b2 Nf3 b3 Bg5 Nf6 Nc3 b1Q Nd2 b2 Nb5 Bb7 c8B Nc6 Be6 Rb8 Ba2 Qd3 Qb3 Rg8 Rc1 b1Q d7+ Ke7 Kf2 Rc8 Rc5 e3+ Kf3 e1B Be2 Bg3 Bh4 Qb2 Rb1 Bf2 Bd1 Qbc3 Bg5 Qb4 Rd5 Qde4+ Ke2 Qc2 Kf1 Qd3+ Be2 Rg6 Rc5 Rh6 Bh4 Qc7 Rd5 Nd8 Rc5 Qcf4 Rd5 Qdc3 Bg4 Qg5 Rc5 Nd5 Bh3 Kf6 Qc4 Kg7 Qb3 Nf6 Rd5 Nc6 d8Q Kh8 Qd7 Re8 Rd6 Nd8 Ra6 Be7 Ra5 Rg8 Bg3 Qcd4 Bd6 Bf8 Be7 Qd3+
r2bq3/3RR3/p1k1K1B1/2b1p1p1/1B2Pnbn/1Qr4p/PbQ1RPNp/1b4N1 w - - 0 1 illegal: No possible last move
3q4/2nkrpR1/2rp4/n2B4/2NNbprQ/b2P1Pp1/n1BQr1Pp/R1RK4 w - - 1 3 illegal: No proof kernel
r2Q3N/NP2q1b1/1QprppQ1/BR5p/1r5p/k2qn1n1/1rB1PP1K/2Rb4 w - - 0 1 legal: proof: c4 d5 a4 dxc4 h4 g5 a5 gxh4 a6 bxa6 Qc2 a5 Qd1 a4 g4 Kd7 b4 Kd6 d4 a5 b5 h5 b6 f6 b7 c3 g5 a3 d5 Kc5 g6 Kb4 d6 a4 g7 a2 d7 e6 Rh2 a3 Qd3 c2 Be3 c1R+ Qd1 Rc4 Nf3 Na6 Rg2 Qe7 d8Q Nh6 g8Q Nc5 Q1d4 Ne4 Ng5 Nf5 Nf7 Neg3 Qg6 Bg7 Nc3 Bd7 Rc1 a1R Nb5 a2 Qb6 Rb1 Na7+ Ka3 Bd2 a1Q Ba5 Qd4 Rg1 Rb3 Bh3 Ne3 Bf5 Ba4 Bc2 c6 Rg2 Rf8 Nh8 Rb2 Rg1 Qd3 Rg2 Ne4 Rg5 Rcb4 Rb5 Rf7 Bb1 Bd1 Bc2 Ng4 Kf1 Ne3+ Kg1 Ng3 Kh2 Rf8 Qc8 Rd8 Qb8 Rd5 Q8d8 Rd6
1B3q2/bRp1rb2/3rpp1k/Pn2pP2/2pRQ3/1B2P1Q1/pK5N/1nBNn1r1 w - - 0 1 illegal: No proof kernel
3b1rQ1/1rN1bb2/pp3q2/Q1p1p1N1/3R2R1/nPrp1BB1/Ppk2KNP/n7 w - - 0 1 illegal: Other
1nrQQqB1/p5p1/3rn1Pp/5R1P/2bb2K1/1p2RpQB/PkpNN1b1/6q1 w - - 0 3 legal: proof: c4 e5 b4 c5 f4 exf4 Bb2 d6 Bd4 cxb4 c5 Qc7 c6 Qd8 Bc5 dxc5 Kf2 Ke7 Kf3 Kd6 d4 Kd5 h4 Kc4 g4 f5 h5 b5 g5 b3 c7 b4 g6 h6 d5 b2 d6 b3 d7 Nf6 Nd2+ Kc3 e4 b1Q e5 c4 e6 Bc5 e7 Nd5 e8B Kb2 Rh4 c3 Ne4 c2 Bf7 Bd4 Qd2 Qf8 d8Q Ba6 c8Q Nc7 Qf2 Bc4 Bg8 Ne6 Qg3 Qc1 Bh3 Qe1 Kg2 f3+ Kh2 f2 Nd2 f1B Ne2 Qc1 Re4 f4 Re3 Bg2 Qcd7 Qf1 Q7e8 f3 Re1 Qf2 Re5 Qe3 Rf5 Qg5 Qg4 Qe3 Kg3 Qg1 Qf4 Na6 Qfg5 Rc8 Kg4 Nb8 Qf4 Rc6 Qg3 Ra6 Nc3 Rc6 Re3 Rd6 Ne2 Ba6 Qde7 Qh2 Qc6 Qg1 Bf7 Qe8 Qcd7 Rf8 Bg8 Bc4 Qf6 Qf7 Qfh4 Rc8 Qhd8 Qe7 Q7e8 Qf8
1bn2Bk1/2p2b2/2P1rpNB/3NpPqr/1KppQ3/pp1Q1n2/BP3R2/3R3n w - - 2 3 illegal: Other
Qr1b4/pbNNRp2/1r2BKpq/R2p2pn/P1p1k2p/2Q5/1n1PB2P/3Q2n1 w - - 0 3 illegal: No proof kernel
3B3Q/rN5b/1PK5/1b2PN1R/qrb3p1/2bPNB2/krr2R2/2n2rN1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Kd7 e4 Kd6 Ke2 h5 Kd3 a5 Kc4 c5 g6 f5 b6 f4 Kb5 a4 b7 g2 b8N c4 g7 f3 Ne2 g1R Nbc3 f2 Nc6 a3 Na2 h4 Nec3 h3 Nb1 c3 Nd4 h2 Qb3 c2 Nac3 a2 Bh3 f1B+ Nde2 Ne7 g8Q Nf5 Ba3 c1R Nd1 Ra7 Bg2 Rc2 Nbc3 Bg7 Ne3 Ng3 Bf3 Rg2 Ncd1 Bc3 Nf5+ Ke5 d6 Qa5+ Kc6 Ba6 d7 Qa4+ b5 Rh5 Ng1 Ne2 d8N Nc1 Qbf7 Bc4 d3 Rb2 Qff8 Rgc2 Nde3 Rhh7 Bc5 Rhb7 Be7 Rb8 Rb1 a1R Nb7 Rb4 Qg5 Rbb2 Ng7+ Kd4 Qh8 Rb4 Rb2 Rb1 e5 Rf8 Ra2 R1b2 Bd8 Rf5 Qe7 Rf4 Bg2 Rf1 Qef8 Be1 Qe7 Kc3 Bf3 Kb3 Ngf5 Bc3 Qc5 Bg8 Ra1 Bh7 Rb1 Ka2 Qd5+ Qb3 b6 Bc4 Qb5 Qa4 Ne2 Rd1 Rf1 h1B Rf2 Rf1 Ng1 Nb3 Re1 Nc1 Rh2 Bg2 Re2 Bh1 Rh5 Bg2 Bd5 Bf3 Rf2 Be4 Nd4 Bef5 Bf3 Bc8 Nc5 Ba6 Nb7 Rd1 Ndf5 Re1 Be7 Rf1 Bd8 Baxb5+
8/q2qP2N/knRn1Pr1/r2K1BB1/nB1QnN2/B2q2pR/5P1b/7q w - - 0 1 illegal: No possible last move
1R5n/nQ1Pq3/3N3p/1b3NN1/P1q3pp/3R1Bb1/r2NbPKq/k3B3 w - - 0 1 illegal: No possible last move
3b1R2/3R1Bqq/2k1r1Pq/q1Pb2N1/4P1r1/3N1K1B/4Qn1r/2nnqNN1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 Ba3 exf4 axb5 Be7 b6 Bc5 b5 Bf8 Bb4 axb4 Kf2 f5 c4 h5 g4 d5 b7 Kd7 b6 f3 c5 d3 e3 d4 g6 b3 g5 h4 g7 b2 Ne2 d2 Ra7 h3 Ra3 d3 Nc1 f4 Rh2 Nf6 g8B Ra6 Bh7 Kc6 Rh1 h2 Bg2 Be6 Bf1 Bd5 Qb3 d1Q Ra1 d2 Bg8 Be7 Qc4 Nbd7 Bf7 Ne5 Nd3 Ra4 Rg1 h1Q Bh3 Qc2 Qa2 Qc3 Rd1 Qf8 Rf1 Qg7 g6 Qa5 Qc4 Bd8 Qc2 Rh4 e4 Ra2 Qd1 Rg4 Qe2 Qh6 Nc3 b1R Nd1 Qh7 Ne3 Rc2 Ra4 Qg7 Rd4 Rb4 Bg2 Qhh6 Bh3 d1N+ Ke1 Bc4 Rd7 Bd5 b8N+ Kb5 Qf2 Rg1 Bg8 Qgh7 Nb2 Q6g7 b7 Rg5 Nbc4 Nfg4 Nc6 Nh6 b8N Nhg4 Qd2 f2+ Ke2 Nd3 Na6 N1b2 N6e5 Rb3 Rd1 Nc1+ Kf1 Rb4 Kg2 f3+ Kg3 Rb3 Rf1 Nd1 Nf7 Qgh6 Nce5 Ra2 Rg1 f1Q Nb4 Qe1+ Qf2 Qc3 Rf1 Re2 Qg2 f2 Nf3 Qcg7 Ng1 Re5 Ng5 Re6 Qh2 Rbb2 Nd3 Kc6 Re1 f1Q Qg2 Qff7 Rf1 Qgc3 Rf2 Qfg7 Rf8 Qe1+ Kf3 Ra2 Qf1 Rh2 Bf7 Rag2 Qe2 Ngf2 Nf1 Rg4
1Q3b2/qPRPR1Rb/P1Rb4/6q1/N1NBB1n1/2rr1n2/Kqk1n1q1/5q2 w - - 0 1 legal: proof: b4 a5 h4 d5 e4 g5 a4 gxh4 c4 f5 exf5 b6 cxd5 Ra6 Qb3 Ra7 b5 Ra6 Qb4 axb4 a5 Ra7 a6 Ra8 Ra5 bxa5 Kd1 Kf7 Kc2 Kf6 Kb2 Ke5 g4 Ke4 d4 c5 f4 e5 b6 h5 g5 h3 d6 a4 b7 c4 d5 h4 g6 a3+ Ka2 c3 f6 h2 d7 h3 f5 b3+ Ka1 b2+ Ka2 c2 d6 Nh6 g7 Nc6 g8Q Nd4 f7 Nf3 f6 Ng4 Kb3 a2 Ne2 Kd3 Nd2 a1Q Nb1 e4 Bd2 e3 Rg1 h1Q Bg2 h2 Bc3 Rh3 Na3 Qf1 Nc4 c1N+ Ka3 b1Q Bd4 Qdb6 d8R Kc2 Nc3 e2 Na4 e1B Re8 Bg3 Re7 Bf5 d7 Ne2 Qh8 Q1b4+ Ka2 Rc8 Qg8 Qa7 Qh8 Bh6 f8R Bh7 f7 Bd6 Qg8 Rc5 Rc8 Bf8 Rc6 Qc1 Qh8 Qg5 Qg8 Kd3 Rc1 Qf1 Qh8 h1Q Qg8 Bg7 Qb8 Bf8 Rc2 Qhg1 Bh1 Qgg2 Rc1 Bh6 f8R Rg3 Rg8 Bf8 Rgg7 Qc3 Rb1 Kc2 Rbb6 Qcd2 Rc7 Qb4 Rbc6 Qb5 Ncb6 Rc3 Nc4 Nfh2 Qd8 Rgd3 Qb8 Nf3 Qc8 Qh3 Rgf7 Nh4 Be4 Nf3 Rg7 Qhg2 Qb8 Qb2+
qrqN1k1K/r1B2BqP/6bb/1q2rBB1/1n2n1n1/4PQ2/4bP1R/1R4N1 w - - 0 1 illegal: No possible last move, all moves rejected
2R2K1N/bBrRP3/BPnP3q/b1br1b2/1n2B2Q/5r2/n1n2nB1/2N1k3 w - - 0 1 legal: proof: f4 e5 a4 exf4 b4 b5 axb5 g5 h4 gxh4 b6 d6 c4 Ke7 c5 Bf5 b5 Ke8 Ba3 Bc8 bxc7 Nh6 c6 Ng8 Bc5 dxc5 Kf2 Ke7 Kf3 Kd6 Ke4 h5 d4 a5 g4 f5+ Kf3 Kd5 e3 c4 g5 h3 g6 a4 g7 a3 Ne2 h2 Qc2 a2 Bg2 h4 Ng3 h3 Qc1 c3 e4+ Kc4 d5 Kd3 e5 c2 e6 Nf6 g8B Rh5 Ne2 Ne4 Rg1 h1N Nd4 h2 Qa3+ Nc3 Qe7 c1B Qh7 Qh4 Qh8 Ra7 Bh3 Bd2 Na3 Nf2 Rgc1 h1N Nb3 Bc5 e7 Bde3 Rab1 a1B d6 Na2 Bh7 Bc3 Bg2 Ba5 Nc4 Rg5 Rb2 Qh6 Bg6 Be6 c8B Rc7 Bb7 Ba7 b6 Bc5 Qf6 Rh5 Qh4 Bd7 Ra1 Kc3 Ba6 Nd3 Nc1 Ndb4 Ne5 Nf2 Nf7 Be6 Rb3+ Kd2 Nh8 Ke1 Rd3 Rd7 c7 N8c6 c8B Rc7 Bcb7 Bc8 Rc3 Be6 Bh1 Bd7 Kg2 f3+ Kg3 Bc8 Bg2 f4+ Kh2 Rd5 Be4 Bf5 Rc2 Kd1 Rc4 Nfd3 Rc3 f2 Rc4 f3 Kg3 f1R Rc2 Bg6 Kg4 f2 Rc3 Ke1 Rc4 Qg7 Rc3 Bf5+ Kh5 Qh7+ Kg5 Qh5+ Kf6 Qh6+ Kf7 Rh1 Qh5 f1N Qh4+ Nf2 Rc4 Ne3 Rc2 Qe6+ Kf8 Rh3 Qg3 Rc8+ Kg7 Bd4+ Qe5 Qh6+ Kf7 Bb8 Rc3 Nec2 Qf4 Rf3 Bb5 Na7 Ba8 Be3 Rc4 Nc3 Qh4 Rc6 Ra3 Nca2 Rac3 Nd4 Bb7 Rcc5 B5a6 Ndc2 Ke8 Rc8+ Kf7 Bd4 Rc7 Be3 Rd7 Bd4 Rcc7 Nac6 Rd8 Be3 Rcd7 Rc7 Rc8 Ba7 Ke8 Bc5 Kf7 Qe6+ Kf8 Qh6+
5r1B/1B1R4/1qRqQq2/3PN1b1/k1P1KP1R/3r2R1/1b4nr/Nq1nr1n1 w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 Ne2 f5 Ng1 fxe4 c4 dxc4 b3 c3 Ra2 c2 Ra3 Bh6 Ra1 Bf8 Bd3 c5 Bf1 c4 Be2 c3 Bd3 Be6 Bf1 Bc4 bxc4 Qd5 Ba3 Qd4 Bc1 Qd8 Ke2 Kd7 Ke3 h5 f4 e5 d4 a5 g4 a4 d5 a3 g5 a2 g6 h3 b6 h2 g7 h4 b7 h3 Qe2 Ra3 Qh5 Ne7 g8R Nf5+ Kf2 e3+ Kf3 e2 Rg6 e1N+ Ke4 Ng2 Rf6 Be7 Qe8+ Kc7 Rf7 Kb6 Nf3 Ka5 Bb2 c1Q Be2 c2 Ne1 Bg5 Bg4 Qd6 Qf8 Nc6 b8R Ka4 Qg7 Rf8 Rb3 Nfe3 Kf3 e4+ Kf2 Nd1+ Ke2 e3 Kd3 e2 Qf6 Ne5+ Ke4 Nf3 Rd7 Ng1 Rg3 Rd3 Nd2 Qb1 Qe6 c1B Bh8 Qbb6 Ndf3 Bb2 Rb1 a1Q Ne5 Bc1 Rb5 Bb2 Rc5 Qb1 Nc2 e1Q+ Re3 Qh4 Rg3 Qh6 Rc6 Qf6 Bf5 Ne2 Rg1 h1R Na1 h2 Rf1 Rg1 Rff3 h1R Rg4 Qbb4 Rfg3 Qb6 Rh4 Re1 Rdh7 Qa7 Qe8 Qdc5 Bc8 Rh2 Bb7 Qab6 Rd7 Qcd6 Qe6 Ng1+
r2r1R1q/4q1N1/2P4R/r1qn1Q1b/3n1P1k/1PBn4/Rr4qB/R2b1NK1 w - - 0 1 legal: proof: d4 b5 g4 c5 f4 cxd4 a4 h5 axb5 hxg4 Bg2 e6 Bc6 Bd6 Be4 f5 e3 fxe4 f5 Bf4 exf4 Kf7 Nh3 Ke7 Ng1 Ke8 Kf1 Kf7 c4 a5 h4 g5 b6 d5 f6 Kg6 c5 Kh5 f7 e5 f8R e3 b3 e2+ Kg2 e1Q b7 a4 Qc2 e4 Qd2 a3 Bb2 g3 Nf3 a2 Qd3 g4 Na3 e3 Qd2 e2 Nc4 d3 Rh3 d4 Ba3 Nc6 b8B Nf6 Na5 Nd5 Qd1 d2 Bb2 d3 Nc4 Nd4 Qc2 d1R c6 d2 Na3 Rb1 Ba7 d1B Bc3 Rb2 Nb5 Bf5 Nd2 Bg6 Rh2 Bf7 Rc1 a1R Nf1 Ra5 Kg1 g2 Nd6 Rg8 Ra1 Qb8 Rc8 Rd8 Ne8 Qe5 Bc5 Qe7 Bb6 Qd2 Qd3 e1N Qe4 Nd3 Qf5+ Kh6 Rb8 Bh5 Ng7 Qde2 Bc5 Qf8 Bb6 Qee7 Bc5 Qh8 Bb6 Rd7 Rf8 Rdd8 Ba7 Nb5 Bf2 Nd4 Bg3 Bf7 h5 Rba2 Bb4 Qh7 Bbe1 Qg6 Bd2 Qgd6 Bc3 Qc5 Rh4 Re2 Kh2 Rea2 Bf2 g3+ Kh3 g1Q Bfe1 g2 Bg3 Qge3 Kh2 Be8 Rg4 Qf7 Rg5 Qg8 Rg4 Qee7 Rg6+ Kh7 h6 Rf2 Re6+ Bg6 Re2 g1Q+ Kh3 Rg2 Rea2 Rb2 Bh2 Qgg5 Qe6 Be8 Qd7 Kg6 h7 Kh6 h8R+ Kg6 Rh7 Qh8 Qg4 Be2 Kg2 Bd1+ Kg1 Bf7 Rh3 Be8 Rg3 Kh6 Qf5 Bf7 Ne8 Kh5 Rg2 Kh4 Ng7 Qgf6 Rg5 Bfh5 Rg6 Qe2 Rh6 Qfe7 Qh7 Qf3 Qf5 Qg2#
2q5/q2Rbrk1/1qP1r3/3B1RN1/R3P2B/Q1KRrq1b/nn1Pb2N/2b5 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 e5 gxh5 exf4 c4 d6 Qc2 d5 axb5 cxb4 c5 Nh6 Qc3 Ng8 Qc4 dxc4 h4 a5 e4 g5 c6 f5 b6 Kf7 h6 b3 h7 g4 h5 c3 h6 f3 b7 f4 Ba3 b2 Bg2 a4 Ne2 f2+ Kd1 f1Q+ Kc2 g3 Nd4 f3 Bc5 f2 Rh4 a3 Ra2 Nf6 Bh3 g2 Bb4 g1R Bf5 Nd5 Ne6 Nd7 b8R Ra7 Ba5 Ne5 Rf4 Nd3 Rb3 Be7 Ng5+ Kf6 Rf3 Re8 h8R Rg3 h7 Kg7 Be6 Qc7 Rf6 Re3 Rf5 Qh1 Ra1 a2 Na3 f1B Nb5 Be2 Nd4 Qf3 Rb7 Qd7 Bd8 N5b4+ Kb3 c2 Bd5 b1Q+ Kc3 Qe6 Rd7 c1B Rhf8 Qe5 R8f6 Qb8 Rfd6 Qa8 Rb7 Be6 Rbd7 Qc8 h8Q+ Kg6 Qh1 Kg7 Qd1 Rb7 Qc2 Nb2+ Qd3 Rc7 Rf4 Bh3 Rf5 Qf1 Ndf3 Qh1 Nh2 Qf3 Rdf6 Nc2 Re5 Nd1+ Kc4 Qb6 Nh7 Nb4 Bg8 Rf8 Rfd6 Rf6 Rf5 Nb2+ Kb3 Rb7 Rc7 Ra7 Bf7 Bf8 Qc3 Qcb8 Rd3 Qc8 Bd5+ Kg6 Rf7 Re6 Bh4 Kh6 Ng5 Bc5 Rf8 Rf7 Rd8 Be7 Rd7 Kg6 Qc4 Kg7 Kc3 Qa8 Qa6 Qc8 Rb1 a1Q Qa4 Qa2 Ra1 Qa3+ Qb3 Qaa5 Ra4 Qaa7 Qa3 Na2+
1K2rbqr/N3bq2/b1P2B2/n4R2/1PqP4/NRnRR1Qn/1b1q4/3k1B2 w - - 0 1 legal: proof: b4 b5 e4 c5 h4 g5 c4 gxh4 a3 f5 exf5 d5 Qc2 cxb4 c5 b3 Qc4 b4 axb4 dxc4 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 g4 Kd4 g5 h5 f3 a5 d3 b2 g6 c3 f6 e5+ Kg5 h3 g7 h2 f4 e4 f5 e3 Kf4 h4 f7 a4 f6 a3 Nh3 a2 Bd2 c2 Ng1 c1Q Bh3 e2 Nc3 e1B Rb1 a1B Bf1 Nh6 g8Q Nc6 Qg3 Na5 c6 Qc2 Rd1 h3 Nb1 Ng4 Na3 b1N Be3+ Kc3 d4 Bb2 Ne2+ Kb3 Nc3 Nf2 Ke5 Qd2 Bg5 Ba6 Ncb5+ Nc3 Na7 Rc8 Rg1 h1Q Rg2 h2 Ke6 Nh3 Re2 Nf2 Re3 Qf3 Bh4 h1Q Rb1 Qb6 Kd7 Re8 Bg5 Qc5 Kc7 Qc4 Bh4 Be7 f8R Qg1 f7 Nh3 Bf6 Qff2 Rg8 Bf8 Rg5 Qf3 Rf5 Bf2 Rd3 Be3 Re5 Bg5 Ree3 Qfd5 Be5 Bge7 Bf6 Bh6 f8R Qf7 Rg8 Bhf8 Rg5 Qgg2 Rf5 Qg1 Qd6 Qgg8 Qg3 Bc8 N3b5 Kc2 Kb8 Ba1 Rb3 Bb2 Na3+ Kc1 Rf4 Kd1 Rf5 Ba6+
1q2b3/1P1bR1P1/1qB2R1N/3q4/1P1bR1Nk/rRnqQq2/5bB1/3n2bK w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 h4 f6 e4 Ra6 f4 f5 h5 fxe4 f5 c5 Bf4 gxf4 g5 Rg6 hxg6 cxd4 Kf2 h5 Kg2 d5 c4 e5 b4 Ke7 c5 d3 c6 a4 g7 a3 b6 f3+ Kh2 h4 b7 h3 c7 e3 g6 Kf6 Qb3 Kg5 f6 e4 f7 a2 Bg2 f2 Qd1 f1Q Qf3 e2 Qe3+ Kh4 Qc1 e1B Qd2 e3 Qc2 e2 Qb2 d2 Na3 d1B Qc1 d4 Nc4 d3 Ne3 d2 Nd5 Bf2 Qb2 e1Q Rb1 a1B Qb3 Qe3 Ne2 Nf6 g8R Nbd7 g7 Qb6 Ng1 Ne4 Rc1 Bad4 Ne7 Ndf6 Rc4 Bh5 Qe3 Bd7 c8B d1Q Rc3 Qb1 Rb3 Nc3 Bc6 Qbd3 Nf5+ Kg4 Nh6+ Kh4 Bg2 Bfc5 f8R Nfd5 Rf6 Nd1 Re8 N5c3 Re7 Bhe8 Bc6 Qfe2 Bg2 Qf3 Re4+ Bg4 Bd7 Rf8 Bc6 Qb8+ Rd6 Rf4 Rf6 Bgd7 Re7 Qd5 Nf3+ Kh5 Ne1 Kh4 Nc2 Qf3 Rg1 Rf5+ Kh1 h2 Re1 Re5 Qd2 Re3 Qc1 Qd5 Qa3 Rg3 Ne3 Bg1 Neg4 Bdf2 Rfe6 Bcd4 Rf6 Q3e4 Qc1 Qe3 Be4 Nb5 Rb1 Rf3 Kg2 Qe2 Rb2 Ra3 Rb3 Qd3 Bf3 Nbc3 R1e4 Ne2 Qe3 h1Q+ Kf1 Qhh2 Bh1 Qhg3 Bf3 Qgf4 Kg2 Qff5 Kh1 Nec3 Bg2 Qf3
Bq5N/2Q2Pkb/1nqq2rN/R1P5/NKb1Nrqq/2R5/P2q4/q1Bq4 w - - 0 1 legal: proof: d4 a5 e4 c5 f4 cxd4 b4 f5 g3 fxe4 f5 axb4 Bc4 g5 Bb5 Nc6 Bf1 Ne5 h3 Bh6 h4 g4 Qd2 Bg5 hxg5 Ng6 Qd1 Nf4 gxf4 Qa5 Bh3 Qb6 Bf1 Qd8 Kd2 Kf7 c4 h5 f6 e5 f5 d5 c5 b5 Bb2 h4 Qc2 g3 Ne2 g2 Rh2 g1Q Qd3 b3 Na3 b4 Qa6 h3 Qb5 d3 Qa4 d4 Qa5 e3+ Kd1 e4 Nb1 d2 Qa3 Qd6 Bc3 b2 Kc2 b3+ Kd1 Be6 Ng3 Rh6 Rf2 h2 Bb4 h1Q Rf3 Rf8 Qa5 Ne7 Qc7 Rg6 Nc3 b1B Na4 b2 Ba3 Bc4 Rf4 Bbd3 Rc1 b1Q Bb2 Kg8 f7+ Kg7 Rg4 Nd5 f6+ Kh7 Ba3 Qb8 Rc3 Nb6 Bc1 Qc6 Rf4 Qh4 Rf3 Qgh2 Bg2 Q2h3 Rf4 Q3g4+ Bf3 Bf1 Kc2 d1Q+ Kb2 d3 Ka3 d2 Kb4 e2 Bg2 e3 Ne4 e1Q Bf3 Re8 f8N+ Kg8 f7+ Kg7 Rf6 Bfd3 Re6 e2 Re7 Rf6 Ng6 Rf4 Nh8 Rg8 g6 Qeg3 Re8 e1Q Rc8 Qde2 Bg2 d1Q Bh1 Qa7 Ra8 Qb8 Ra5 Q2d2 Bf3 Kh6 g7 Bc2 Ng5 Bh7 Bh1 Qgd3 Ne4 Qdd6 Bg2 Re8 g8N+ Kg7 Nh6 Re6 Ng5 Qf1 Bd5 Rg6 Ne4 Qce8 Ba8 Qec6 Ba3 Qa1 Bc1 Qfd1
NBb1R1q1/pP6/2KRq2R/2Q5/k1Pb1P1N/rnrbqq1n/8/2B1R2q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 Kd3 Kd7 f4 e5 b4 h5 g4 e4+ Kd2 h3 g5 d3 Ke3 h2 Kd4 h4 b6 Kc6 g6 Kb5 g7 e3 c3 h3 f6 e2 f7 e1Q b7 Nh6 g8R Ng4 Qb3 Na6 b8B Bg7+ Be5 Nf2 f8R Nc5 Ne2 d2 Qa3 d1Q+ Nd2 Qb3 Bg2 Qf6 Be4 Qe6 Nf3 Qa2 Rd8 Nb3+ Ke3 Rh5 Nh4 d4+ Kf3 d3 Rd6 d2 Re8 d1B Ke3 Rf5 Bf3 Bc2 Rb1 Qd1 Re1 h1Q Nd4+ Kc4 b5 h2 b6 Nh3 b7 Bd3 Rb2 Qg1+ Rf2 h1Q Nb5 Rg5 Nc7 Rg3 Qa5 Rb8 Na8 Qg8 Qa3 Kb5 Qc5+ Ka4 Rh6 Ba6 Bd6 Bd4+ Ke4 Bc4 Rd2 Be2 Rhe6 Qe3+ Kd5 Bc4+ Kc6 Bd3 Rh2 Qae2 Rh6 Qee6 Rf2 Q2e3 Rff1 Rg2 Rg1 Ra2 Rg7 Ra3 Rd7 Qef7 Be5 Qe6+ Rd6 Bd7+ Kc7 Rd8 c4 Bc8 Kc6 Rd7 Rg6 Rg7 Rf6 Rg2 Rh6 Rc2 Bf6 Rc3 Bd8 Qf2 Bc7 Qfe3 Bb8 Qdxf3+
5r2/2R2Q1B/2qnq2R/1NNb1B2/3rp1b1/bqPP1b1n/1BKnPBk1/8 w - - 0 1 legal: proof: b4 b5 g4 d5 a4 g5 f4 d4 c3 d3 Qc2 dxc2 axb5 c5 fxg5 cxb4 Bg2 h5 Bf1 hxg4 h4 Kd7 b6 Kd6 d3 Ke5 Kd2 Kf4 h5 Kg3 b7 e5 g6 a5 g7 f5 h6 e4 h7 b3 Na3 b2 Bh3 b1B Ra2 f4 Bb2 f3 Bc1 a4 Nc4 f2 Ra1 f1B Nf3 a3 Nd4 a2 Rh2 Nc6 b8Q+ Qc7 Nf3 Nge7 g8B Nd4 Ng5 Ra4 Nb2 Nef5 Bd5 Nb3+ Ke1 Ba3 Qa7 Bg2 Ne6 Rf8 h8B Rd4 Bd2 Bf3 Nc4 Nd6 Nc5 Qc6 Bc1 Nd2 Bb2 Bd7 Bg8 Be6 Qa4 c1Q+ Qd1 Bc8 Bh7 Qc2 Rh1 Q2a4 Qb3 Be6 Qb7 Qb3 Qf7 Bc2 Rb1 a1Q Bf6 Bf5 Bg5 Qaa2 Be3 Qbb6 Rh2 Qab3 Ra1 Bb1 Rh1 Ba2 Bf2+ Kf4 Rb1 g3 Bg4 g2 Rh6 g1N Bh3 Q3b4 Kd1 Qb3+ Kc1 Qa6 Bg4 Nh3 Ra1 Ne8 Nd6 Qac8 Rb1 Qce6 Nb5 Nd6 Ra1 Qb4 Kc2 Bd5 Be3+ Kg3 Bf2+ Kg2 Rb1 Bg6 Bf5 Bgh5 Ra1 Qc4 Rf1 Bhg4 Ra1 Bb4 Ra7 Ba3 Rc7 Qb3+
6n1/N3P1P1/1krb1NB1/p1N1q2b/3q1n2/n2Q1KrB/2nr2RP/1qN1R3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 e5 f5 h5 Bf4 b5 axb5 exf4 f6 f3 Qd3 f2+ Kd1 gxf6 Qh3 f5 Qxh5 f4 Qg6 Bc5 Qh7 Bf8 c4 d5 b4 Kd7 e4 Kc7 Ke2 a5 g4 f3+ Kd1 d3 e5 d2 e6 d4 g5 Qe8 g6 Nd7 g7 f5 c5 f4 c6 Nb6 Be2 f1N Qh3 f2 Ra2 f3 Na3 Rh4 Bd3 Rg4 Ne2 Bd6 Bg6 Ng3 Re1 f1N Nc1 f2 e7 Ra6 Qh7 Nh5 Ke2 d1R Kf3 d3 Rae2 Nc4 b6+ Kb8 b7 Ka7 b8N d2 b5 Nf4 c7 Rc6 Na6 Nfe3 Nc5 f1Q+ Rf2 Kb6 Qh3 Qd3 Rg2 Qb1 Qh7 Be6 c8B Nc2 Qh3 Bf7 Qg3 Ka7 Bcf5 Qb8 b6+ Ka8 b7+ Ka7 Bc8 Kb6 Nb5 N4a3 Na7 Qc7 b8N Be8 Be4 Bh5 Bcf5 Qc8 Qh3 Qe6 Bd3 Qe5 Nbd7+ Kc7 Nf6 Kb6 Re3 Re1 Bc8 Re2 Bg6 d1Q Bcf5 Qdd4 Re4 Rd2 Re1 Rh4+ Kg3 Bg4 Be6 Bd1 Qf5 Bf3 Qd3 Bh5 Bh3 Rg4+ Kf3 Rg3+
1n1Bq3/2P2RBn/QK1b1rN1/5b1r/b2B4/P1P1R1q1/3pNB2/1k2q1nq w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 h5 g4 hxg4 a3 Rh3 Bc4 Rh8 Ba2 b3 Qd2 bxa2 Qd4 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 Kf6 Kd4 e5+ Kd5 g5 f4 b5 h4 g3 c6 g4 c3 e4 c7 b4 h5 b3 h6 e3 h7 b2 Nh3 e2 Kd4 e1Q Qe2 d5 Be3 g2 Nd2 g1Q Nb3 b1B Nc1 g3 Qa6+ Bd6 Ne2 g2 Bf2 Bc2 Rc1 Qh2 Rf1 a1Q Rd1 g1N Rd3 Qe8 Re3 Kg7 f6+ Kg6 f7 Kf5 f8B Qg3 Bh6 Ba4 Bg5 Nf6 Bh4 Rf8 h8B Nh7 Bd8 Rf6 Bg7 Ra7 Bh8 Rb7 Bg7 Rb5 Bh8 Kg4 f5 Ra5 Nhf4 Kg5 Kd3 d4 Kc4 d3 Ng6 d2 Bg7 Qab1 Kd4 Qb7 Bh8 Qh1 Kc4 Rc5+ Kb4 Rc4+ Ka5 Rh4 Kb6 Rh5 Bg7 Kg4 Bh8 Re6 f6 Kf5 f7 Rf6 f8B Bcd7 Rf3+ Ke4 Bfg7 Bf5 Re3+ Kd5 Qa5+ Kc4 Qa8 Kb3 Qa6 Rf8 Bd4 Kb2 Bhf6 Kb1 Bg7 Qf4 Bg3 Rf6 Rff3 Bfd7 Bf2 Qg3 Rf4 Rf8 Rf7 Bf5 Rd7 Rf6 Rde7 Qe4 Rf7 Qh1
bn1q1r2/p2r1B2/bQPn2R1/1NP4P/4qN2/5R1N/2N2r2/nKb2Bbk w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 exf4 Be3 Qc7 Bf2 Qd8 Bg3 fxg3 Kd2 Ke7 Kc1 Kf6 b4 Ke5 h4 Ke4 c4 g5 b6 f5 c6 d5 b5 f4 e3 f3 c5 g2 h5 f2 b7 g3 b6 g4 Bb5 f1B Be2 d4 Bc4 d3 Qd2 Bh6 Qd1 Ne7 Na3 d2+ Kb1 Nf5 Qb3 d1N Nh3 Kf3 e4+ Nde3 e5 g1B e6 Kg2 e7 Nc2 e8B Rh7 Bef7 Nd6 Nb5 Bc1 Ra3 Na1 Qb4 Be2 Rf3 Bf1 Bg8 Rd7 Bgf7 Na6 b8N Bb7 Ng5 Be2 Rh4 Bf1 Nh3 Kh1 Be2 g2 Qa5 g3 Rg4 Bf2 Rg6 g1R Bec4 g2 Bd3 Re7 Nd7 Nb8 Nf8 Rd7 Ne6 Be2 Nef4 Rf1 Qb4 g1Q Bdc4 Qg2 Qb2 Bc8 b7 Bg1 Qb3 Rf2 Qb4 Na6 b8N Bb7 Qa5 Qg4 Qc7 Qe6 Qb6 Qe4+ Bd3 Nb4 Na6 Rc8 Nac7 Ba8 Nce6 Na6 Ned4 Nb8 Nc2 Qh8 Rg2 Rf8 Rg6 Qf6 Bdc4 Qd8 Bd3 Bd1 Bf1 Be2 Nc3 Ba6 Nb5 Rb7 Be2 Re7 Bf1 Rd7
n1RN2r1/8/Nb1nP3/BbpRn2P/q3k1rN/n2b4/BQnb1P2/2K2N2 w - - 0 1 legal: proof: g4 d5 d4 e5 a4 h5 e4 b5 axb5 hxg4 c4 f6 Qc2 f5 cxd5 exd4 e5 Ne7 Qd3 Ng8 Qe4 fxe4 Kd1 Kf7 b4 Kg6 h4 Kf5 e6 c5 d6 g5 b6 a5 b5 d3 b7 d2 b6 g3 d7 e3 h5 e2+ Kc2 e1N+ Kd1 g2 Ra2 g4 Ra1 g3 Rh2 a4 Bb5 a3 Ra2 Ke4 Be2 Ra4 Bf1 Na6 b8Q Nc7 b7 Nh6 Rb2 a2 Ba6 a1N Rh3 Nec2 Rb5 Nf5 Rb2 Nd6 Qa7 Bh6 b8N Qe8 d8N Na3 Rh1 N1c2 Rb6 Bd7 Rh3 Rg8 Rc6 Na8 Rc8 Bb5 Nf3 g1B Nh4 g2 Rd3 Bh2 Qb6 g1N Rd5 Nf3 Qb7 Bd3 Bc4 Ne5 Qb2 Rb4 Na6 Qa4 Ba2 Rd4 Qb7 Bg5 Bb2 Bhf4 Bc3 Bf6 Nf7 Bd8 Qb2 Bb6 Ba5 Bb5 Nd8 Rc4 Ke2 d1B+ Kf1 Ne3+ Ke1 Be2 Kd2 Rb4 Kc1 Bed3 Ng2 Bh6 Nh4 Nec2+ Nd2+ Kf4 Nf1 Ke4+ Kd1 Bd2 Rc7 Kf4 Rc6 Kg5 Rc8 Rg4 Nf7+ Kf4 Nd8 Bb4 Kc1 Ke4 Qb3 Be1 Qb2 Bd2+
1NN2q2/P4q1R/1rN3kr/2bPbbq1/B1R2B2/1P1n1Q2/1p3r2/r2Nr2K w - - 0 1 illegal: No possible last move
3nQ1NR/kb4n1/2B2pq1/P2B4/2nrr2q/r1B1nKRN/rP3P2/B5n1 w - - 0 1 illegal: Other
4B1R1/2q1kqPn/6b1/3rB2N/4rP1n/bp1RPBN1/1p3q1B/r2KQ1b1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 Nh3 gxh4 Ng1 e5 Bb2 e4 Bc1 e3 dxe3 f5 Rh2 f4 Rh1 f3 Kd2 fxe2 a4 e1B+ Kc2 b5 f4 c5 g4 h5 a5 h3 d6 c4 d7+ Ke7 a6 h2 g5 c3 g6 h4 g7 h3 a7 b3+ Kd3 c2 Ke2 b4 Ra3 b2 Rc3 b3 Rc7 Bf2 Qd2 Nf6 Rc6 Nh7 Qe1 Qc7 Bd2 c1R Bc3 Rd1 Be5 Rd5 Rd6 Nc6 Nd2 Nd4+ Kd1 Nf3 Ne2 Nh4 Ng3 Bg1 Bb5 Ba6 Ba4 Bd3 Nh5 Bg6 Bb5 Re8 a8B Rg8 Bb7 Ra8 B7c6 Ra2 d8B+ Kf7 Re6 Ba3 Rd6 Re8 Be2 Re7 Bf3 Re8 Bdf6 Re7 Rd8 Re6 Rg8 Re8 Bc3 Re4 Bfe5 Ke7 Ba5 Bf2 Rf1 h1Q Be8 h2 Rg1 Qg2 Bac3 Rb5 Nf1 h1Q Nfg3 Rc5 Rf1 Bg1 Rf2 Rd5+ Rd2 Qf2 Rd3 Rd6 Qe2 Rd5 Be1 Qh3 Qf1 Qe6 Qe2 Qg2 Bf2 Qf7 Qe1 Bh2 Bg1 Qf1 Rh8 Qf2 Rg8 Qg2 Nh1 Qg3 Bf2 Qg2 Bg3 Bg1 Bh2 Qf2 N1g3 Ra1#
2bq4/2P5/RBkp3P/r3R1Nb/1n1qnpr1/1BN2b1n/3PB3/r1BQ3K w - - 0 1 legal: proof: b4 b5 f4 e5 a3 exf4 a4 g5 axb5 c5 Bb2 cxb4 Ba3 Ba6 Bc1 Bc8 h4 gxh4 g3 h3 Ra5 h2 Ra6 Bh6 Ra1 Bf8 Na3 h5 Nf3 h4 Ng1 h3 Nb1 Bd6 Ra4 Be7 Ra1 Bh4 gxh4 Kf8 Ra4 Ke7 Ra1 Ke8 Kf2 a5 e4 f5 c4 a4 c5 f3 h5 d6 b6 Kd7 e5 a3 e6+ Kc6 h6 a2 b7 b3 e7 b2 Bd3 f4 Qf1 Na6 b8B Nf6 Bh7 Nb4 Bg6 Ra5 Bh5 Rg8 Nc3 b1Q Qd1 Qd3 Bc7 Qd4+ Kf1 f2 Bb6 Rg5 Nf3 Rg2 Ng5 Ne4 Rg1 h1N Be2 h2 e8B+ Bd7 Bf7 Bc8 Rb1 a1R Rb3 Bf5 Ra3 Bg6 Bb3 Bh5 Bg4 Rb5 Ra6 Rba5 Ke2 f1B+ Kf3 Bd3 Re1 Nhf2 Re2 h1B Re3 Kb7 Re2 Nh3 c6+ Kb8 c7+ Kb7 Re1 Kc6 Re3 Nef2 Re5 Bf5 Ke2 Bc8 Kf1 Ne4 Bf3 Rg4 Be2 Bf3 Nh7 Rg7 Ng5 Nhf2 Kg1 Nh3+ Kh2 Rg8 Nf7 Rg1 Ng5 Rg2+ Kh1 Rg4+
1N1KN1n1/1p3P2/rkNRb1n1/2n2b1P/qBr3B1/bp4bP/1R2N1Q1/1b6 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 g4 h5 gxh5 f5 exf5 e5 f4 exf4 Kf2 d5 Kf3 Kd7 Kg4 Kc6 c4 g5 a4 b3 a5 d3 c5 d2 a6 f3 h3 d4 a7 f2 Nc3 d3 Qe2 d1N Nf3 d2 Ba3 Na6 Ne5+ Kc7 c6 Qd7 Rh2 Nc5 Bb4 Nb2 Rd1 Kb6 c7 Nbd3 Nc6 Nf4 Nb8 Ng6 Qf3 Rh6 Qg2 Qa4 Be2 f1B Bf3 Bd3 Ne2 Be6 c8N+ Kc7 Ne7 Bb1 Nec6 Kb6 Na6 Rc8 a8N+ Kb5 N8c7+ Kb6 Nab8 Be7 Rdh1 d1B Ne8 Bdc2 Rd1 Be4 Rd6 Bed3 Kg3 g4 f6 Bdf5 f7 Rc7 Kf2 g3+ Ke3 Bh4 Kd4 Be7 Bg4 Bh4 Qf3 g2 Qg3 g1B+ Rf2 Bc8 Qg2 Bg3 Kd5 B1h2 Nc1 Bg1 Rb2 Be3 Ne2 Bc1 Ra2 Ba3 Rb2 Re7 Rd8 Re5+ Kd6 Bce6 Rd7 Bh4 Rd8 Re4 Rd7 Rc4 Rd8 Kb5 Kc7 Be1 Rd6 Bg3 Kd8 Kb6 Qf3 Nh4 Qh1 Ng6 Qg2 Nh8 Nd7+ Ka6 Rd3 Bd5 Ndb8+ Kb5 Ne7 Ra6 Rd1 Kb6 Nec6 Bde6 Rd6 Ng6
7r/1R2R1nr/qB3p2/1nb1nPQ1/r2RB3/kP2bP2/rN1K1pb1/2R3N1 w - - 0 1 illegal: No possible last move, all moves rejected
2r4b/qPb2RR1/1R3pBr/4b1bp/P2k3n/1n3Q1K/b1q2P1B/1R4NN w - - 0 1 legal: proof: h4 b5 e4 d5 b4 dxe4 h5 a5 c4 axb4 cxb5 Qd5 g3 Qd8 g4 h6 g5 g6 gxh6 gxh5 a4 Kd7 d4 Ke6 b6 Kd5 h7 e5 b7 c5 Nh3 c4 Ke2 b3 Bh6 b2 Bg2 c3 Kf1 c2 Qc1 f6 Qf4 c1B Bf3 Be6 Kg2 Ne7 Rg1 Nbc6 Bd1 e3 Rf1 e2 Ra2 e1B Ng1 e4 Nd2 b1Q Rb2 e3 Ne4 e2 Ng3 Qb6 Nh1 Qa7 Rb6 Bg7 Bc2 Rac8 Bg6 Nf5 Kh3 Ba5 Qf3+ Kc4 d5 e1B d6 Kd4 d7 Qc2 Bf4 Bec3 Bd6 Bg5 d8R Ba2 Rfb1 Nh4 Rf8 Ba1 Bh2 Bb2 Rb3 Bc7 Rf7 Na5 Rb5 Nb3 Rb6 Rhg8 h8R Ba1 Rh6 Bh8 Rhh7 Rg7 Bf5 Rg6 Rhg7 Rh6 Bg6 Kc4 Ne2 Bae5 Ng1 Kd4
3n1q1b/R3r1k1/n1B3B1/p1PR1P1K/6B1/rp1P1qN1/qnb3BN/2q1Q3 w - - 0 1 legal: proof: b4 d5 a4 c5 h4 g5 c4 Qa5 Ba3 Qxa4 Bb2 Qa2 hxg5 f5 bxc5 d4 e4 fxe4 Bc3 dxc3 Ke2 Kf7 g4 e5 f4 b5 g6+ Kg7 c6 h5 g5 e3 Kf3 e2 c5 e1Q c7 h4 Be2 b4 Bf1 h3 Ne2 b3 Rg1 h2 Ng3 h1Q+ Bg2 Bf5 c8B Bc2 Kg4 Qf1 Qe1 e4 Bb7 a6 Bc6 e3 f5 e2 Bh3 Nh6+ Kh5 Qhf3+ Bg4 Rh7 Rg2 Qg1 Rh2 Kg8 g7 Qge3 Rh1 Qe7 Rh3 Kf7 g8B+ Kg7 g6 Qe8 Bgd5 Qf7 Qg1 e1N Rh2 Nd3 Qe1 Nb2 d3 Kg8 Re2 Bg7 Re5 Bh8 Nd2 Kg7 Ndf1 Qf8 Nh2 Ra7 Bf7 Ra8 Rd5 Ra7 Rd1 Re7 Rd2 a5 Re2 Na6 Re3 Re4 Re2 Rf4 Re7 Ra4 Ra7 Ra3 Bfe8+ Kg8 g7 Nf7+ Kg6 Nd8 Kg5 Rh4 Bf7+ Kh7 g8B+ Kg7 Bh7 Rh6 Bhg6 Rh7 Bfe8+ Kg8 Ba8 Re7 Kh5 Kg7 Bb7 Bb1 Bec6 c2 Ba8 c1Q Re5 Qf1 Bg2 Qff4 Rd5 Qf3 Bc6 Bc2
N3Bn1b/qRb5/2B1p3/1n1N1q1R/pNQ2PrP/2b3b1/2PK4/kq2N2r w - - 0 1 legal: proof: g4 f5 e4 fxe4 a4 h5 b4 hxg4 d3 c5 a5 b6 Ba3 Bb7 axb6 Bd5 b5 Bb3 Bb4 Bc4 dxc4 cxb4 f4 Kf7 b7 Ke6 b6 g5 c5 d5 h3 a5 c6 g3 c7 g4 c8B+ Nd7 b8N e3 b7 e2 Bg2 b3 Bf1 b2 Rh2 d4 Qc1 Kd5 Kd2 Kc4 Ke1 g2 Nc6 g3 b8N e6 Ne7 a4 Qd2 d3 Nbc6 Qb6 Bb7 Nh6 Ng6 Qa7 Nge7 Bg7 Bc8 Nf5 Qe3 Nd4 Nb8 Nb5 Ba6 Nf8 Nf3 g1B Qd2 g2 Nec6 B1d4 Bb7 g1B Nb4 Bc3 Bc6 Bb6 N8a6 Bc7 Be8 Rg8 Bg2 Bh8 Ra3 Rd8 Rb3 Rg4 Bh1 Rd7 Bg2 Rh7 Bh1 Bcg7 Nc3 b1Q+ Qc1 Bd4 Kd2 Rh6 Ncd5 e1B+ Kd1 Bec3 Ne1 d2 Ke2 Rhh4 Qb2 Rh7 Qa2 Bf2 Bg2 Bg3 Rh1 Bd8 Nac7 Rh5 Na8 Bc7 Ne7 Rh6 Bgc6 Rh7 Ned5 d1Q+ Kf1 Qdd4 Ke2 Qf6 Rh2 Bb2 Kd2 Qf5 Re2 Kd4 Re5 Bc3+ Ke2 Qf6 Rg5 Qf5 Rh5 Rd7 h4 Kc4 Nf6 Rd1 Nfd5 Kd4 Ned3 Rf1 Ne1 Rh1 Qb2 Nd6 Qa2 Bb2 Nbd3 Ba1 Rb7 Nb5 N3b4 Bb2 Ndb6 Kc3 Qd5 Ba1 Qc4+ Kb2 Ke3 Ka3 Kd2 Bac3+ Ke2 Kb2 N6d5 Bcg7 Kd2 Ka1 Qf1 Bd4 Qc4 Bc3+
2BN3Q/5PNp/2P1nr1b/8/5Rqk/Nrq3bP/pR1NB2K/n1b1q1q1 w - - 0 1 illegal: No possible last move
Q2NR3/1q1P2P1/2NrppB1/4b1kN/n1P1n1n1/2qqrB2/2b2Nq1/5RK1 w - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 b5 axb5 Bh6 e5 Bf8 e6 dxe6 f4 c5 f5 Bb7 f6 Bc8 fxe7 Kd7 b4 Bg7 b6 Bf8 b5 Bg7 Ba3 Bf8 Bb4 cxb4 Kf2 a5 e8B+ Ke7 c4 Kf6 d4 h5 g4 h3 d5 b3 b7 b2 d6 h4 b6 h2 Qd3 h3 Ba4 Kg5 Bb3 f6 Qe2 a4 Qf3 a3 Bd3 a2 Be4 Ra6 Bd5 Nh6 Nc3 b1Q Nge2 Bd7 Ng3 Ba4 Bc2 Nd7 b8N Nc5 Rf1 h1N+ Kg1 Nf2 b7 Nfe4 Nh5 Qb4 Rab1 a1Q Nd1 Qac3 Nf2 Qbb3 Nc6 h2+ Kg2 Rh7 b8N Qb7 Rb4 Qdd7 Nd8 Rg7 Bd3 Bc2 Nbc6 Na4 Rbb1 Rg8 Kh1 Qh7 d7 Bd6 Rb6 Be5 Kg2 Kh4 g5 Ng4 g6 Kg5 g7 Rh8 Rb5 Rb6 Ra5 Qf5 Ra8 Rh7 Nf4 Rh3 Nh5 Qh7 Kh1 Rg3 Qg2 Re3 Rb8 Nec5 Bg6 Ne4 Nd4 Rd6 N4c6 Nec5 Bf3 Ne4 Ng3 Qh3 Nh5 Qb1 Nb7 Qd1 Re8 Qdd3 Nbd8 Re1 Na5 Nd2 Bd1 Re3 Qa8 Qe4+ Bf3 Qb7 Nac6 Ne4 Rg1 Qf1 Bd1 Qe2 Kg2 Qed3 Be2 h1Q+ Kf1 Qdd2 Bf3 Qh4 Kg2 Qdd3 Rf1 Qh3+ Kg1 Qg2+
rbN1r3/4r1Q1/1N3rK1/BNRn4/B4P2/1Prn2Rq/2N1Pkpp/3b3r w - - 0 1 legal: proof: h4 e5 g4 b5 d4 exd4 c4 d5 cxd5 f6 g5 fxg5 a4 gxh4 axb5 h3 Kd2 Kf7 Kd3 Kg6 Ke4 Kh5 f4 Kg4 b3 Kg3 b6 h5 d6 a5 b7 c5 d7 g5 Kf5 d3 Nd2 a4 Qc2 a3 Qc4 h4 Rb1 h2 Qe4 g4 Qb4 c4 Qb6 a2 Qd4 a1R Qe5 c3 Qg7 c2 Qf7 h3 Ba3 c1R Bd6 Qh4 Kg6 Kf2 d8N g3 Bc7 R1a6+ Ne6 Nf6 Nd4 Bd6 Ngf3 Re8 Nb5 Nbd7 b8N Nd5 Ba5 Nc5 Nc4 d2 Rg1 d1R Bg2 h1R Nb6 h2 Ne1 Rc3 Nc2 Nd3 Rc1 Qh3 Nc6 Bb8 Nca7 Be6 Nac8 Bf5+ Kg5 R6a7 Qg7 Rae7 Be4 Nf6 Bc6 Nd5 Ra1 Bg6 Ra4 Ra1 Rc4 Ra4 Rc5 g2 Rc1 Rae4 Rd1 R4e6 Rd2 N3b4 Rd3 Rf6 Rg3 Bh7 Ncd4 Bc2 Bd7 Rf5+ Kg6 Bd1 Nc2 Nd3 Nba7 Rg8 Ba4 Rge8 Nb5 Rf6+
3n1bb1/2q2k2/1K3p2/2RRr1Pr/NRB1QRP1/p1b2b2/4nb1P/1b3N1B w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 g5 e4 b5 Bf4 Ba6 Bg3 h5 f4 h4 fxg5 hxg3 e5 Bb7 axb5 Bd5 e6 Bxe6 Qf3 Bc4 Qd1 Be2 Kd2 a5 c4 d5 b4 e5 b6 f6 b5 e4 b7 g2 c5 d3 Ke3 d2 Kd4 e3 c6 a4 b6 a3 c7 Ne7 Kc5 d4 c8B d3 Be6 Nec6+ Kb5 Qc7 Qe1 d1B Bd5 Rh5 Nc3 Bf3 Nge2 g1B Rc1 d2 Na4 Bc2 Ng3 d1B Bfc4 e2 Nf1 Nd8 Qb4 Nbc6 b8R e1B b7 Bgc5 Qb1 Bf5 Qe4+ Be6 Rc8 Kf7 b8R Bc2 Rd1 Bc3 Rg1 Bd3 Rg2 Bg1 Rf2 Bb1 Rb7 Rb8 Ka6 Nd4 Rb4 Rb5 Bc6 Bg2 Rf4 Ne2 Rd5 Bf2 Ba8 Bf3 Bb7 Qd7 Rcc5 Qc7 Bc6 Kg7 Bb7 Bg8 Ba8 Rb6+ Ka5 Re6+ Kb5 Re5 Ka6 Qe7 Kb6 Kf7 Qd3 Qe8 Rd6+ Bd5 Bb7 Qe7 Bc6 Be6 Bh1 Bd5 Qf5 Re6 Qc2 Bf3 Qe4 Qa7+ Kb5 Qc7 Rdd5 Re5 Ka6 Qd7 Kb6 Qc7+
5n2/3Qqk2/2PRrbbR/PpnN4/R3Bb2/B2NqbK1/pR4P1/qb6 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 d4 cxd4 b4 gxh4 Qf3 a5 Qd1 a4 Bh6 b5 Bc1 Ra5 bxa5 Ba6 Nc3 Bb7 Nb1 Bc8 Bh6 Na6 Be3 Nb4 Bc1 Nxa2 c4 h5 f4 d5 Kf2 e5 f6 a3 c5 h3 c6 e4 f5 e3+ Kg3 h4+ Kf4 d3 Qg4 d4 Nd2 e2 Ne4 e1B Rh2 d2 Bc4 d1B Rh1 d3 Ng3 d2 Nh5 h2 Be2 h3 Qg5 Be7 Ng7+ Kf7 Nf3 Rh6 Ne8 Bc2 Qg3 d1B Qf2 Bc3 Bd3 Bb1 Qa7 Nb4 Qd4 Na6 Ne1 Bf3 Be4 Nc5 Nc7 a2 Nd5 Bd7 Nd3 Be8 Kg3 Bd2 Ba3 Bg5 Rd1 h1Q Rd2 h2 Rb2 Na4 Qa7 Qg1 Qb7 h1Q Qd7 Kf8 f7 Nc5 Ne1 Kg7 f8R Nf6 Rh8 Kf7 Nd3 Nh7 f6 Qd4 N5b4 Rg6 Nd5 Nf8 Rh3 Qe3 Rh6 Bc2 Rc1 Bb1 Rc4 Qhc1 Qf5 Qd7 Ra4 Bd8 Qh3 Qe7 Qd7 Qc3 Rbb4 Qa1 Rb2 Kg8 f7+ Kg7 Qg4 Re6 Qh3 Qb7 Qf5 Bdf6 Qg4 Qe7 Qf5 Nh7 f8R Bg6 Rd8 Kf7 Rd6 Nf8 Qh3 Re5 Qc8 Re6 Qd7 Bf4+
2KR4/2r1BQPN/1Nnrr1pB/1nb1PpNr/8/3N2qq/rR3P2/3kn3 w - - 0 1 legal: proof: c4 b5 b4 d6 a4 Bg4 axb5 Qd7 b6 Qd8 b7 Bc8 b5 e5 d4 exd4 b6 Be6 Bf4 Bh3 Bc1 Bc8 g4 g5 h3 Bd7 h4 Bb5 cxb5 gxh4 g5 Ne7 g6 Bh6 Bh3 Ng8 Bf5 Bf8 g7 Nd7 Be4 Nb8 Bg6 hxg6 Kd2 Kd7 Kd3 Ke6 Kc4 Ke5 e4 a5 Qc2 c5 Nh3 f5 Qa2 d3 Qa3 d5+ Kb3 Kd4 Ka4 c4 e5 c3 Rh2 c2 Nc3 d2 Qa2 Kd3 Nb1 Ke2 Qa3 d1R Qc5 d4 Ra2 d3 Qd5 d2 Ng5 h3 Qf7 Qd3 Rb2 Rh5 Nh7 Nc6 b8B Nd4 b7 Bc5 b6 Nb5 Bd6 Ne7 b8N Qg3 b7 Nc6 Na6 Ra7 b8N Rc7 Rh1 h2 Rg1 h1Q Nb4 Qhh3 Be7 Qhg4 Rh1 Q4h3 Rh2 Ke1 Nd7 Ke2 Nc3+ Ke1 Kb3 a4+ Kc4 a3 Kd5 a2 Ke6 a1R Nb6 Ra6 Ne4 Ra2 Neg5 Ke2 Rb3 Ke1 Nd3+ Ke2 Ba3 Rda1 Rb1 c1N Rb2 Kd1 Bb4 Ra6 Bc3 R1a4 Bd4 Ra2 Be3 Ne2 Bf4 Ng1 Be3 Nf3 Bf4 Rc8 Kd7 Ne1 Rh1 Rca8 Be3 R8a7+ Kc8 Rd7 Nf3 Rd6 Bh6 Ra7 Nfg5 Re6 Rb1+ Kc2 Rf1 d1R Rb4 Rd2 Rb2+ Kd1 Rh1 Qf1 Rh4 Qfh3 Rd4 Rb7 Rd8 Rba7 Nf4 Rdd6 Nd3 Rc7#
nB1N4/2Bq2P1/B2q1n1b/p1b5/1b1Nr1PR/2p1RQ2/1nqP4/1k2Bb1K w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 f4 gxf4 e4 fxe4 c5 Ra6 h3 Rg6 c6 Rg5 h4 dxc6 hxg5 c5 Rh6 c4 Rh4 Kf7 Rh1 Ke8 Kf2 Kd7 Kg2 Ke6 b4 Ke5 g6 Kd4 b6 h5 b5 e5 b7 c5 b6 e3 Ba3 h4 Qf3 h3+ Kh2 e2 Qf2+ Kd3 Qg2 Kc2 Bb2 e1B Bd4 e4 Qg3 c3 Qf2 f3 Qg3 f2 Ba6 f1Q Bg7 e3 Qf4 e2 Qd4 c4 Qe3 Nd7 b8B Qf4+ Qg3 Qd6 b7 Nb6 Be5 Q8d7 Bc7 Bf2 b8B e1N Bd4 Nf6 Bd8 Bh6 g7 Nd3 Be5 Bc5 Bd4 Nb2 Bdc7 Na8 Ne2 Re8 Bf2 Re4 Nf4 Bb7 Kg1 h2+ Kg2 Bc6 Ne6 Bb5 Be1 Kc1 Ra4 c2 Nd8 c3 Na3 Be2 Nb5 Kb1 Qf3 c1B Rd4 Bb4 Rd3 Bf1+ Kf2 Bc5+ Nd4 Bb4 Re3 Bc5 Rg1 h1Q Rg2 Qh5 Kg1 Qhf7 Rh2 Qb3 Kh1 Qc2 Bb5 Nc4 Rh4 B1a3 Ba6 Nb2 Bd3 Bab4 Be2 Qf8 Ba6 Qfd6
2KRrrR1/2b2bPk/1N3r1p/5RPr/p6q/2P2nBB/1q2R3/2N1Qqb1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g6 axb5 Na6 d4 cxd4 g5 fxe4 f4 Nc7 f5 gxf5 g6 f4 Rh2 Ne6 Rh1 Ng5 hxg5 Qa5+ Kf2 Qc7 Ke1 Qd8 Kf2 a5 b4 e5 g7 Kf7 b6 Kg6 b5 d5 c3 f3 Kg3 f2 b7 h6 b8R e3 b6 e2 b7 e1Q Qd3+ e4 Kf4 a4 Ke5 Nf6 Ra2 Ng4+ Kf4 Bc5 Rh5 Be6 Bg2 f1R+ Rf2 Re8 Bh1 Bf7 Bg2 Kh7 Kf5 e3 Rf3 e2 Qd1 d3 Be3 d2 Rh3 d4 Rh2 d3 Bf4 Qh4 Qe1 d1Q Nd2 Ne5 Bh3 Qb6 Bg3 Qb2 Nc4 d2 Nb6 Rf8 Rf4 Nf3 Rd8 Qdb1+ Kf6 d1R b8R Rd6+ Ke7 Rf6+ Kd7 Q1a1 Qd2 e1B Ne2 Rh1 Nc1 Bg1 Re2 Qab1 Rf5 Re8 Bd6 Bg3 Kc8 Q1a1 Qe1 Be5 Bf8 Bc7 Bd6 Qab1 Bg3 Qd3 Rf2 Qf1 Re2 Qg4 Bg2 Rh5 Bh3 Qh4 Kd7 Nh2 Rdc8 Re4 Rg8 Nf3 Rbc8 Re8 Rb8 Rf8 Rbe8 Ra5 Rd8 Re5 Kc8 Ree8
3q3B/Q1rNP3/3qN1NK/r3nR2/2n1rBkP/p1Pq2bp/1n1Rn3/6N1 w - - 0 1 illegal: No proof kernel
1R2K3/r1P1N2r/1q3kn1/pB6/R1Q4q/2RBPn2/P1bN1p2/rn1qqR2 w - - 0 1 legal: proof: c4 c5 b4 e5 f4 exf4 Bb2 g5 Bc1 g4 bxc5 d5 Bb2 dxc4 Ba3 Bh6 Bc1 Bf8 h4 g3 Bb2 Qd6 Bd4 Be7 Bf2 Bg5 hxg5 Kd8 g6 Nd7 Qa4 gxf2+ Kd1 Nb6 g4 Nd7 g5 Nb8 Kc1 Qd3 Qc2 Ke8 Qd1 Qd8 Kb2 Ke7 Ka3 f5 Ka4 a5 Kb5 h5 d4 h4 c6 c3 d5 f3 e3 h3 g7 c2 g6 c1Q d6+ Kf6 d7 h2 Qb3 f4 Nh3 Qb6+ Ka4 Qd1 d8R Rh7 c7 Nc6 Bd3 f1Q Nd2 f2 Rd4 f3 Nf4 Qfe1 Rf1 h1Q Rc1 Qh4 Rc3 Nge7 g8R Ra7 g7 Bf5 Rb8 Ng6 g8B Nce5 Bgc4 Be4 Bb5 Bf5 Rg1 f1R Rdc4 f2 Nd5+ Ke6 Rb4 Nf3 Ne7+ Kf6 Rh1 Rg1 Rg4 Rg2 Rf1 Rg1 Be2 Bc2 Bbd3 Qd4+ Kb5 b6 Kc6 b5 Qb4 Qb6+ Kd7 Rh1 Qa4 b4 Ke8 b3 Qb5 b2 Ra4 b1N Qa6 Qe6 Bb5 Qb6 Bed3 Qd6 Qc6 Rg1 Qc5 Qb6 Qc4 Na3 Nb1 Qc1 Nd2 Qe2 Nb3 Qcd2 Rb1 Rh1 Rb2 Ra1 Rb1 Qf1 Re1 Qd1 Nd2 Qfe2 Rg1 Nb1 Rf1 Qee1
2bq1N2/p5R1/B3Pr1q/bP2Rb1R/1QnrPk2/R2bb3/1pb5/B2N3K w - - 0 1 legal: proof: f4 e5 fxe5 h5 d4 c5 g3 cxd4 g4 hxg4 a4 b5 Na3 b4 Nb1 Na6 Bg5 Nc7 Bd2 Nb5 Bc1 Nc7 b3 Nb5 axb5 Qc7 Be3 Qc3+ Bd2 Qxb3 Bc1 Qb2 Kf2 Ke7 Kg2 Ke6 c4 Kf5 h4 d5 c5 g5 c6 b3 c7 d3 e6 g3 h5 g4 h6 d4 h7 d2 e4+ Kf4 Nc3 f5 Qe1 d3 Ra5 Bb4 Na4 Nh6 Nf3 Qg7 Qf2 Nf7 Nc3 Rd8 h8R Qh6 Ra2 Ne5 Rh7 Nc4 Qd4 Ba5 Qb6 Rd4 Ba3 d1B Rf2 d2 Qc5 Bc2 Qb4 d1B Rg7 Rb8 Kg1 g2 Rh5 Bd3 Bb2 B1c2 Kh2 g1B+ Kh1 g3 Ba1 b2 Nd1 Rb7 Rfh2 Be3 R2h3 Rb8 Ne5 g2+ Kh2 Rb7 Nd7 Rb8 Nf8 Ra8 Rhg3 g1Q+ Kh3 Qf2 R3g5 Qh4+ Kg2 Rb8 Rg3 Qd8 Kh1 Ba6 c8R Bb7 Rcc7 Bc8 R7g5 Rb7 Rc5 Rf7 Re5 Rf6 Rg7 Be2 R3g5 Bg4 Be2 Kg3 Bd3 f4 Rgf5 f3 Rf4 Na3 Bc4 f2 Bd5 f1B Bb7 Nc4 Ba6 Be2 Rf2 Bed3 Rg2+ Kf4 Rg3 Bf5 Rgh3 Bf2 Rhg3 Bf1 Rb3 Bfd3 Ra3 Be3
1nnnN1Rr/1P2k2p/R2rB3/1BR1P3/rrb2b1N/QpP2R2/2n5/rK6 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 Rh2 g5 Rh1 gxh4 c4 Qa5 b4 Qc7 b6 Qd6 b5 Qh6 Ba3 Qf6 Bb4 Qc3 dxc3 cxb4 Kd2 f5 Kc2 a5 g4 d5 e4 a4 e5 d4 b7 d3+ Kc1 a3 b6 h3 c5 a2 g5 h2 c6 b3 c7 d2+ Kb2 f3 g6 f4 g7 f2 Bg2 f1N Bf3 Ke7 Na3 Ra4 Nb1 Ng3 Bh5 f3 Qf1 d1R Be8 f2 Na3 Rd6 Nb5 Nf5 Nf3 Be6 c8B Nfh6 Qc1 f1N Nc7 Bc4 Be6 Ne3 Rf1 h1R Nh4 Nc2 Bb5 Nf7 Rf3 Nd8 Ne8 Rb4 Rf2 Rh2 Rf3 Nh6 g8R Nhf7 Nf6 Bh6 Ne8 Na6 b8R Bf4 Rc8 Nb8 b7 Rhd2 Rb1 a1R Rc5 Raa4 Ra1 Rd7 Rc7 Nd6 Kb1 Nc8 Rc5 R7d6 Ra2 Na1 Ra3 Ra2 Qb2 Nc2 Qc1 Ra8 Ra6 Ra7 Qa3 Ra8 Rac6 Raa4 Ra6 Ra1+
1r1N3B/PP1q2rP/rRBN4/2p3qN/2n5/q1RnqK1k/3p4/1rqN2Q1 w - - 0 1 legal: proof: g4 a5 b4 axb4 f4 e5 g5 exf4 c3 b3 g6 hxg6 Bg2 g5 Bf1 g4 Ba3 b5 Bb2 b4 Bc1 b2 d4 b3 d5 Bb4 cxb4 c5 Nf3 Bb7 Ng1 Bc6 dxc6 Qf6 Na3 Qe7 Nb1 Qd8 Kf2 Ke7 h4 Kf6 e4 d5 a4 g5 c7 f3 c8N g3+ Ke3 g2 e5+ Kf5 e6 Kg4 a5 f5 h5 d4+ Kf2 f4 e7 d3 e8N d2 b5 Nd7 b6 Rh7 a6 Rg7 h6 Ne7 h7 Nf5 Ra4 Ne3 Ned6 Nc4 Rb4 Nde5 Ne8 Qd7 Na3 b1R Ne2 b2 Rh3 Ra1 a7 b1R b7 Rb8 Nc2 Ra6 Ned6 Nd3+ Kg1 f2+ Kh2 f3 Ne7 Rf8 Rb6 Rb8 Rg3+ Kh4 Nf4 g4 Be2 f1Q Ne3 f2 Bf3 Qe1 Nh5 f1Q Bc6 Qf3 Bb2 Qee2 Qh1 Qe1 Bd4 Qc1 Nd1 Qe3 Rf3 Qa3 Qg1 Qg5 Qh1 Nde5 Nc3 Rf7 Ng8 Re7 Nh6 Rf7 Qc1 Re7 Kg1 Rf7 Kf2 g1Q+ Ke2 g3 Qf1 Re7 Nhf7 g2 Nd8 Kg4 Qf2 Qgc1 Nd1 g1Q Rc3 Nd3+ Be5 Rf7 Bh8 Rg7 Qf1 Qd4 Qg1+ Kh3 Kf3 Qde3+
B3rK2/p2p1B1r/BR1b3r/2PN1nP1/1p2P3/k1q1Qq1B/q5n1/1R4Nb w - - 0 1 illegal: No proof kernel
4b2Q/1R4r1/n3N3/b1PP3N/N2rp1k1/q2BBr2/N4ppP/1bnK2bR w - - 0 1 legal: proof: b4 c5 g4 d5 e4 dxe4 f3 h5 gxh5 exf3 a4 b5 axb5 cxb4 d4 Kd7 c4 Ke6 h6 Kf5 h7 e5 b6 a5 b7 g5 d5 g4 Nc3 f2+ Kd2 b3 Qc2+ e4 Ra3 a4 Ra1 g3 Qa2 b2 Ke2 b1B Bb2 g2 Bc1 a3 Bh6 Kg4 Nd1 f5 Bg7 f4 Qd2 a2 Bh6 Nf6 Nb2 f3+ Kd1 Bc5 Qa5 Qd6 Be3 Nh5 Qd8 Nf4 Bd3 Na6 b8N Rg8 h8N Rg7 Nf7 Ne2 Nh3 Nc1 Nf4 Bd7 Ng5 Be8 Nh5 Ba7 Qf6 Qa3 Na4 Bc5 Ne6 f1R+ Kd2 Bb6 Nc6 Ba5+ Nb4 Rf2+ Kd1 Rb8 Nc2 Rb4 c5 Rc4 Nb4 Rd4 Ke1 Bc2 Rb1 a1B Rb3 Bb1 Kd1 Bc3 Na2 Be1 Rb6 Rf1 Rb4 Bf2+ Kd2 Bg1 Qf8 Rf2+ Kd1 Rb2 Qh8 f2 Rb7 Re2 Bh6 Re3 Bg5 Rg3 Be3 Rf3
8/PQ3N2/1bB1nKp1/n2p1nP1/1R1bq1p1/k1PN2r1/3Br2B/b3RbB1 w - - 0 1 legal: proof: e4 a5 b4 axb4 Ba3 c5 Bb2 c4 Bc1 c3 dxc3 Ra3 Nh3 Ra6 Ng1 Ra8 g4 h5 g5 f5 exf5 b3 Qd4 bxc2 Qg4 hxg4 Ke2 e5 Ke3 Ke7 Ke4 Kd6 f4 Kc5 a4 b5 h4 g6 a5 b4 f6 b3 f5 b2 h5 Nh6 f7 Na6 f6 Qe7 Ra4 Bg7 f8Q Nf5 f7 Nc7 h6 Ne6 h7 Ba6 Nf3 Re8 Bg2 Kb5 Nbd2 b1N Ne1 Na3 Ndf3 Nc4 Bd2 c1B Nd3 Bb2 Re1 Ba1 Kd5 e4 Nfe5 Bf6 Qg7 e3 f8B e2 Nf7 Bd4 Be4 Qb4 Bc5 Rhf8 h8B d6 Rd1 e1B Bh1 Bg3 Re1 Bgf2 Qh7 Qb1 Be5 Rh8 Qg7 Rh3 Bh2 Rg3 Ba7 Bb6 Ke4 Bfd4 Rb4+ Kc6 Bg2 Bb5 a6 Na5 Bb8 Qc2 a7 Bc4 Bg1 Qa4 Rbb1 Qb4 Rb2 Kb5 Bf3 Ka4 Qh7 Qb5 Rb4+ Ka3 Bh1 Qa4 Bg2 Nd8+ Kf4 Qc2 Bc6 d5 Bd6 Re2 Bc7 Be3+ Ke5 Ne6 Kf6 Ba6 Nc5 Qe4 Nd3 Rh3 Bch2 Bed4+ Nfe5 Rg3 Qb7 Ree3 Nf2 Bf1 Nd3 Bdc5 Nf7 Re2 Rbb1 Be3 Rb4 Bed4+
3qbB2/R1bbp1Pp/2Bp1R2/6q1/P1Bk1nn1/2N3B1/P2Nb3/1KbQ2r1 w - - 0 1 legal: proof: h4 f5 d4 g5 e4 gxh4 b3 fxe4 Qd2 c5 Qa5 cxd4 Qxa7 b5 Qb7 Ra6 Qa8 Ra4 bxa4 Bg7 Nh3 Bh6 Ng1 Bf8 Kd2 Kf7 f4 Ke6 c4 b4 Kc2 b3+ Kb2 e3 g4 h3 g5 h2 c5 d3 f5+ Ke5 c6 d2 g6 d1B c7 d6 f6 e2 f7 e1B Bb5 Be2 Bc6 Ba5 Bf3 Nc6 Nd2 Nd4 Rb1 Nf6 Bc6 Bd7 c8B Bc7 Ba6 Ng4 Bc4 Bh6 f8B Rg8 Qa7 Ne6 Qd4+ Kf5 Qd3+ Ke5 Qc2 Be8 Qd1 Kd4 Ka1 Bd7 Rb2 Nf4 Kb1 Rg7 Rc2 b2 Rc3 Rf7 g7 Rf5 Rb3 Rg5 Rb7 Rg6 Ra7 Bg5 Kc2 b1B+ Kb2 Be4 Ka1 Bd5 Kb1 Bf7 Bb2+ Kc5 Be5 Bfe8 Nh3 Bh6 Rf1 h1Q Ng1 Qh5 Rf3 Qg5 Rf2 Ne6 Bg3 Kd4 Rf6 Nf4 Nh3 Qe5 Ng5 Qa5 Nge4 Qg5 Rf5 Re6 Nc3 Re3 Be1 Rg3 Rf6 Rg1 Bg3 Nd3 Nde4 Qh5 Bb3 Bc1 Bc4 Qg5 Nd2 Nf4
1rB1RNkb/1qKR1n2/5q2/2P5/N1p1P1nn/b2b1R1R/2pBnP1p/Q7 w - - 0 1 illegal: No proof kernel
B5k1/P2rBR2/1qp4p/3BPbN1/QPKpq3/1Nb1n2B/5b1q/4rRq1 w - - 0 1 legal: proof: f4 g5 h4 gxh4 c4 a5 c5 e5 c6 exf4 d4 a4 Be3 Na6 d5 bxc6 d6 c5 Bd4 c6 Bf2 Nc7 dxc7 c4 Ba7 Bd6 Qxa4 Bc5 Qd1 Bf8 Kd2 f5 Kc3 Kf7 a4 d5 e4 d4+ Kc2 f3 g4 f4 g5 f2 a5 h3 e5 c3 Kd3 h2 b3 c2 a6 c1B Qe2 h6 Qf3 Be3 Bh3 Nf6 g6+ Kg8 g7 Bb4 Qd1 f3 Bc5 Bc3 b4 Ng4 Be7 Rh7 Kc4 Bf5 c8B Qb6 Bb7 Ra7 Ba8 f1Q+ Qd3 f2 Nd2 Qg2 Nb3 f1Q Nf3 Qa2 Ng5 Qg1 Rf1 Bf2 Qd1 Qc2 Qa1 Qe4 Qa3 Qgg2 Rhg1 h1Q Qa4 Qgh2 Rg3 Q1g1 Rf3 Rd7 a7 Rd5 Qa6 Ra5 Rf4 Ra1 Qa4 Rb1 Nf3 Kf7 g8B+ Kg7 Ng5 Re1 Bd5 Kh8 Bc5 Rd7 Be7 Kg7 Nf7 Kg8 Ng5+ Be6 Rf7 Bf5 Qa6 Qd8 Qa2 Qb6 Qa4 Ne3#
3N2R1/BPn3Pb/Q3BKB1/2Rp3B/r2nb2r/k3Pp2/2bb1p2/r2r3N w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 h4 exf4 b4 g5 Ra5 gxh4 Ra4 a5 Ra3 a4 Ra1 Qa5 bxa5 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kb4 g4 h5 c4 a3 c5 f6 c6 d3 a6 d2 c7 h3 g5 h2 a7 h4 b6 h3 g6 a2 g7 f3 Na3 f2 Nc4 Ba6 c8B Nc6 Na5 Rh4 Nb7 Nd4+ Kg6 d6 Nd8 f5 Be6 Ne7+ Kf6 f4 e3 Bc4 Be2 Bb3 Qf1 d1R Bb2 Bc2 Rc1 a1R Bh5 Bh7 Bc3+ Ka3 Ne2 Bc2 Ng3 Nd5+ Kf7 Nc7 Kf6 Bh7 Ba5 Bc2 Qa6 Bh7 Rc5 Bc2 Rf1 h1B Re1 Bc6 Nh1 h2 Re2 Bh7 Rec2 Ba4 Rc1 Bac2 Bg6 Rc8 a8B d5 Bc6 Bd6 b7 Ra8 Bce8 Ra7 Bh5 Bf8 Beg6 Bd6 Rc4 Bb4 Rc5 Bd2 Bb6+ Kb4 Qd3 R7a4 Qa6 Ka3 Ba7 Na8 Ng3 h1B Rc8 Bhe4 Nh1 f3 Rb8 Bcd3 Rc5 Bc2 Nf7 Nb5 Rg8 Nd4 Nd8 Nc7
1qnk1nR1/5p1n/b1RPP2R/K2nqp2/2BR1n1n/b4p1Q/PB2NN2/8 w - - 0 1 illegal: No proof kernel
3kqb1b/Rp2R2P/1r5p/4n2n/1pBpPBrP/K7/B2NQ3/1qN1b2B w - - 0 1 legal: proof: d4 c5 c4 cxd4 f4 e5 fxe5 a6 b4 Nh6 b5 axb5 Qd3 Ng8 Qc2 Ra6 Qd1 Ra8 g4 Nh6 g5 Ng8 Qb3 Nh6 Qb4 Ng8 Qc3 dxc3 Na3 h6 Nb1 d6 Be3 Be6 Bc1 Bf5 Na3 Bd3 Nb1 Bh7 g6 Qf6 gxh7 Qd8 Kd1 f5 Kc2 g5 Kb3 c2 a4 f4 h4 d5 e6 d4 a5 f3 e7 f2 c5 g4 c6 g3 a6 g2 c7 Nd7 c8B Ngf6 a7 Bg7 Bf4 c1B Nd2 Ne5 Be6 Ba3 e3 Bc5 Ne2 g1B Nc1 Rg8 Bfc4 f1Q Ka2 Rc8 a8Q Rc6 Kb3 Qb8 Qa2 Rb6 Qc2 Bh2 Ra7 Bg3 Bf7+ Kd7 e8B+ Kd8 Bc6 Bcf8 Bf3 Qd1 Re1 Bh8 Bh1 Nh5 Ka2 Rg4 Bfd5 Ke7 Ka3 Qe8 Qd3 Qc2 Qe2 Qb1 Ba2 Bf2 Bdc4 Bg3 e4 Bf2 Rg1 Be1 Rg3 Rg8 Rg7+ Kd8+ Re7 Rg7 Bf3 Rg4 Bh1 b4#
1B2r1Q1/bKb1k3/PN1b1nqR/n1p2p1n/1p1Pp3/q1R2N2/1NP1N3/B7 w - - 0 1 legal: proof: e4 a5 b4 axb4 Ne2 d5 Ng1 dxe4 f4 e5 Kf2 b5 Nf3 e3+ Ke1 e4 Ng1 Ra6 Qh5 Re6 Qd1 Re5 fxe5 h5 g4 f6 g5 Bf5 g6 Kd7 Be2 Be6 Bf3 Bf7 Bg4+ hxg4 gxf7 Rh3 Ne2 Rh6 Ng1 Rh8 Ke2 g5 a4 f5 h4 c6 h5 b3 a5 b2 e6+ Ke7 a6 b4 h6 g3 h7 g4 Rh6 g2 Ra3 g3 Rc3 Qe8 Nf3 Nd7 Qg1 Ngf6 d3 Bg7 f8N Qg6 Bd2 Rg8 h8B Nh5 Be1 Ndf6 Nd7 Re8 Nb6 Bf8 Bf2 Nd5 Be5 Ndf6 Bb8 Kd8 Be1 Bd6 Bd2 Ke7 Bc1 Kf8 e7+ Kf7 Qf1 g1Q Qg2 Qh1 Qg1 g2 Bd2 Rg8 e8N Ke7 Be1 Bc7 Nd6 Qh3 Ndc4 Re8 Bg3 Bd6 Be5 Qhg3 Qf1 g1B Qg2 Qh3 Bd4 Qf7 Qg8 Qg6 Nbd2 b1N Nb3 Na3 Nb2 Nc4 Nc1 Nf4+ Kd1 Qhg3 Ne2 N4h5 Kc1 Bf2 Kb1 Bc7 Ka2 Bd6 Kb3 Na5+ Ka4 Qh3 Nc1 e2 Be5 e1B Ne2 Bg3 Bd4 c5 Kb5 Bc7 Be5 Bef2 Bd4 Bgd6 Be5 Bg3 Bd4 Nc4 Kc6 Bh2 Kb7 Na5+ Ka8 Qf1 Ka7 Qa1 Be5 Qa3 Ka8 Nb3 Kb7 Bg3 Bd4 Na5+ Ka8 Nd5 Rc4 Bh2 Nd1 Ndf6 Ba1 Bhe5 d4 Bd8 Ba7 Bb8 Rc3 Bed6 Nb2 Nc4 N6a4 Bb6 Kb7 B8c7 Bb8 Ba7 Nb6 Na5+
N4B2/k1bp1Rp1/4pPn1/1R2Pp1p/1n1P1rN1/1n4rB/2KB2Q1/2n2B1q w - - 0 1 legal: proof: c4 a5 b4 b5 Nc3 Ba6 Nb1 axb4 Bb2 b3 Ba3 b4 Bc1 Bb5 cxb5 Ra6 Bb2 Ra3 Bc1 Ra8 f4 c5 h4 Ra6 g4 Rf6 g5 Rf5 Bb2 Qb6 Bc1 Qf6 h5 Rxf4 h6 Rf2 Rh2 Qxh6 Rh3 f5 Rh1 Qf6 gxf6 Rh2 Nh3 Rg2 Ng1 Rf2 Bg2 Kd8 d4 Kc8 Kd2 h5 a4 c4 a5 e6 b6 b2 b7+ Kc7 a6 Kb6 a7 b3 a8B Ba3 Nc3 b1Q Bh3 b2 Qf1 Rf4 e4 Rh7 e5 Ka6 Nb5 Rh6 Nf3 Rg4 Nh2 Nc6 b8B Rhg6 Bd6 Rf4 Nc7+ Kb6 Bb4 Rg3 Ng4 c3+ Kd1 Qe4 Bd2 Nge7 Bb7 Ng6 Ba6 Qg2 Bd6 Qh2 Qg2 Bc5 Re1 Qh1 Bf1 Bb4 Be7 Bd6 Ra8 Kb7 Rf8 Ka7 Na8 Bc7 Rf7 b1N Be3 Nd2 Bf8 c2+ Kc1 Nc4 Bd2 N4a5 Kb2 c1N Rd1 Na2 Rb1 Nc1 Kc2 Nd8 Rb2 Ndc6 Rb8 Nab3 Rb5 Nb4+
3QR2B/1B3p2/6p1/b3PR2/rPnKpn2/2pr3k/NP2B1np/2bnN1B1 w - - 0 1 illegal: No proof kernel
3r1R1r/2Np2r1/B1KB3r/1ppn1Bp1/2N2P1k/2rR1B1p/qP1n2QP/8 w - - 0 1 illegal: Other
2N2bkN/2P5/4qP2/1Q1pp1r1/1P1R1qRR/1pB4K/1pp1b1Bp/1n1R1b2 w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 h5 fxe4 h6 b3 c3 b2 Qf3 gxh6 Qg4 h5 Qd1 h4 Ke2 c5 Rh2 b5 Ke1 b4 Rh3 b3 Rh1 Nc6 d4 Nb4 cxb4 c4 Be3 Ra5 Bc1 Rc5 dxc5 Qb6 Qg4 Qa5 Qd1 Qd8 g4 Kf7 f4 h5 Kf2 e5 Kg2 d6 a4 c3 a5 c2 c6 e3 c7 e2 f5 e1Q a6 Qd2+ Kh3 Qd3+ Nf3 Qg5 a7 Qa6 a8R Qa4 f6 Qe8 Na3 Ba6 Bd2 Qf4 g5 Bc4 Bc3 Ne7 g6+ Kg8 g7 Be2 Nb5 Nd5 Na7 Qe7 Ng5 Qe6+ Kg2 Rh6 Qd3 Rg6 Rd8 h3+ Kg1 h2+ Kg2 h4 Qb5 Qd4 Nc8 h3+ Kg3 Qc4 Bg2 Qe4 Rhd1 h1B Kh2 Qf3 Nf7 Rg5 Nh8 Qf1 Rd4 Qf2 Rg4 Qd4 Kg3 h2 Rd1 Qf4+ Kh3 Bf1 Bd2 Nc3 Be1 Qe8 Rh4 Nb1 Bc3 Qe6+ Rg4 Kh7 g8R Be2 Rg6 Bf1 Rh6+ Kg8 Rh4 Be2 Bf1 Bhf3 Bg2 Bf1 Rd7 B3e2 Rdh7 d5 R7h5 Rg7 Rf5 Qd4 Rff4 Rg5 Re4 Qf2 Red4 Qf4
2n3N1/3q1PP1/1nrR2r1/KN2k1q1/3nnN1b/1bN1n1Rr/qP2b2B/1B2Q3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 a5 c4 h5 c5 d5 b6 d3 Kc3 h3 g5 d4+ Kb3 h4 Ka4 d2 f5+ Ke5 c6 h2 f6 e3 f7 h3 b7 e2 g6 e1R c7 d3 g7 Qd7+ Ka3 a4 Kb4 a3 Qb3 d1B Bh6 a2 Bg2 d2 Qa3 Be2 Qa7 d1N Be4 Ne3 Bd5 Rc1 Qa4 Rc6 Bc4 Raa6 Qa3 e6+ Kb5 Be7 Nd2 Bh4 Rc1 a1Q Qd3 Qa2 Nb1 Ne7 Qd2 Rh7 Bg5 Rh6 Re1 Ra3 Qa5 Rg6 Bd3 Nc4 Qc3+ Qd4 Qb3 Nd7 b8N Ndb6 Nc3 Kd6 Rf1 e5 Bf6 e4 Re1 e3 Bb1 Beg4 Nce2 Bce6 c8N+ Kd5 Nd6 Nec8 Bg5 Ke5 Qd1 Rd3 Nc3 e2 Rf1 e1N Rf3 Nc2 Nge2 Qe3 Rg1 h1Q Rf6 h2 Qc1 Qhe4 Qe1 h1N Bh6 Qd2 Be3 Qg2 Nf4 Qg3 Rg2 Be2 Bg1 Rf3 Bh2 Qg5 Rg1 Rh3 Rg3 Nf2 Nd7+ Kd4+ Rf5 Ne4 Nf6 Bd5 Ng8 Qd1 Rf6 Ke5 Na4 N4e3+ Ka5 Bdc4 Nb5 Qd7 Rd6 Nd4 Bd3 Qb1 Nac3 Bb3 Bc2 Na4 Bd3 Qa2 Bb1 Nab6+
1K1b4/r1n1Bb2/1Nbb1P2/N3nB2/2QPP3/5qrn/nk2BR1B/2b2nrR w - - 0 1 illegal: No proof kernel
qB1R1b1N/n3b1k1/4b1P1/3N2Pq/Q2qN2R/3bNn2/r1bPn2r/3B1b1K w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 f5 g4 Kf7 Kg2 h5 a4 b5 e4 c5 g6+ Kg7 a5 h4 a6 f3+ Kh2 f4 a7 b3 e5 c3 e6 c4 e7 h3 g5 b2 Ra3 b4 Qa4 f2 Qd7 f3 Qf5 c2 Qa5 b3 Ra2 c3 Qb4 Nf6 Qb6 Ng4+ Kg3 h2 Ra1 Nc6 Qb5 Qd4 Na3 b1Q Nc4 b2 Nh3 Be6 Qa4 Nge5 Ne3 Qa2 Be2 f1B Nf2 b1B Ba3 c1N Bd1 c2 Bd6 Bd3 Ne4 f2 Kg2 Nf3 Bb8 Qa3 Ra2 Ne2 Ra1 c1B e8N+ Kg8 N8d6 Kg7 Nf7 Bbc2 Rb1 Rh5 Nh8 f1B+ Kf2 Rh4 Rb7+ Be7 Rd7 Qaa1 Rd8 Bca3 Rg1 h1Q Rg4 Rh7 Rf4 Qh5 Rh4 Nc3 Kg3 Bf8 Kf2 Bae7 Kg3 Nfe5 Kh2 Nf3+ Kh1 Ne2 Bd6 Rb8 a8N Rb2 Bg3 Na7 Nb6 Qa3 Bb8 Ra2 Nbd5 Rh6 Qd7 Qa6 Qe8 Qc6 Qd7 Qa8 Qa4 Qg4 Rh3 Rh4 Rh2 Qh5 Rh3 Rg4 Rh2 Rg2 Rh4 Rh2+
1q2b1bk/1nN3R1/BPn2B1n/2n1K3/8/Q3P1PB/3BnrqR/Nr1qb2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Ke4 f5+ Ke5 Kf7 c4 Kg7 b4 d5 c5 h3 b6 a4 b7 d3 e3 d2 g3 f3 b5 f2 b6 f4 c6 h4 c7 d4 Qf3 d1N Bb5 f1B Qd5 a3 Qd6 h2 Nc3 d3 Ne4 h3 Nc5 d2 Nf3 a2 Rg1 h1Q Na6 h2 Ke4 Be6 c8B Qg2 Bd3 h1N Bb2+ Nc3+ Ke5 d1Q Qd4 Ne2 Nd2 f3 Rc1 a1N Qc3 f2 Nb1 Rh2 Nd2 Bb4 Rc2 Nh6 Bg6 Nb3 Bd3 Kh8 Bc1 Na5 Qa3 Bg8 Nb3 Be1 Bh3 Qc8 Rc7 Nbc6+ Kd6 Qe8 b8B Ra7 Rg7 Nb7+ Kc7 Qf8 Na1 Qf4+ Kd7 Qf8 Bc7 Qb8 Bd8 Ra8 Nc7 Ra5 Re7 Rb5 Bd2 Rb1 Rf7 Nc3 Ba6 Bb5 Ke6 f1N Kf6 Ne2 Rg7 Ba4 Ba5 Nd2 Bc3 Ncd4 Ke5 Be8 Bf6 N2b3 Bd2 N3c5 Rf1 Qf3 Rg1 Rf2 Rg2 Qc6 Rh2 Qf3 Ba5 Qg2 Bd2 Nc6#
1q2r2q/2nk1NBB/q5qb/b2Nr1RN/1RN3q1/P7/rP1Pb3/2K1Qr1n w - - 0 1 illegal: No proof kernel forced: bxDB
2Kb1b2/k3B3/1rBN4/1n2qB1b/qb2q1P1/1PPn2Rn/2RNB1qQ/2r3b1 w - - 0 1 illegal: No proof kernel
nQr1k1q1/NRb2r2/b7/B2B4/5P1r/1q1P1NNN/qnPb1r1K/1Rr4b w - - 0 1 illegal: No proof kernel
2qb2Q1/b2bB1N1/3RrKNq/1Nn1P1rP/2k2n2/rR3rPN/1qq5/1q1B4 w - - 0 1 illegal: No possible last move
1knb2K1/3Q4/4P1q1/3NbPR1/R2nb1nN/2n2B2/1br1PqNn/1r1N1qB1 w - - 0 1 illegal: No proof kernel
r2B2b1/2B1r3/2PbB3/R3r2P/q3k2K/NNqnBbQ1/3bPR2/qbn2q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Ke6 b4 Kf5 h4 g5 b6 d5 b5 a5 c5 f3 Kg3 f2 h5 d3 c6 d4 b7 d2 b6 a4 Nh3 a3 Ng1 a2 Nf3 d3 Qe1 d1B Nc3 d2 Ng1 Na6 b8B Ne7 b7 Rh7 Na4 Nc5 Nb2 Ng6 Ba7 Bd6+ Kg2 g3 Kh3 g4+ Kg2 Ke4 b8B f5 Rh4 f4 Bc7 f3+ Kh1 Bf5 Bg2 f1Q Na4 Re7 Bcb6 Nb3 Ba5 Ne5 Bf2 Nd3 Nb6 Qh8 Rb1 a1Q Bh3 Qhc3 Be3 f2 Ba3 Nbc1 Rb5 Bb3 Nc4 d1Q Bc7 Ba2 Rd5 Qa4 Ra5 Bh7 Bac5 Bg8 Na3 Bb1 B5b6 Re5 Bd8 g2+ Kh2 Re7+ Bf4 Re5 Nf3 g1R Nd4 Rg3 Bbc7 Re3 Nf3 Re7 Kg3 Re5 Bg2 Re7 Rh2 Re5 Kh4 g3 Bh3 g2 Nd4 g1B Rg2 Bh2 Bh6 Bf4 Rh2 Rg3 Bg4 Bd2 Be6 Rg7 Be3 Re7 Nb3 Qh1 Bb8 f1B Bbc7 Bg2 Qf2 Qd1 Qg3 Bf3 Rf2 Qf1
1R6/1nnq1RR1/1PP1Pq2/q2rb2K/1r2N2B/2QB1b2/R5q1/2rNbbkq w - - 0 1 illegal: No possible last move, all moves rejected
RQ1RB3/nK1P1rq1/rB3nn1/P1N3R1/bb1N1qRb/2P1n2k/3bq3/7n w - - 0 1 illegal: No proof kernel
B4R2/r1nP4/1P1KB1rN/P3R3/B1qqb3/1Q1N1q2/1nb2nb1/b2kB1qr w - - 0 1 illegal: No proof kernel
1n1r4/1n1nr2b/3nBNPb/BP3QNK/P1nn3R/2R5/qN4kN/2b1r2b w - - 0 1 illegal: No proof kernel
1bN1n1bn/b1rP2Pb/2n3kr/1R3N2/n2B1K1R/rN4N1/r3P1B1/5qQb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 h5 Kf3 c5 d4 a5 g4 f5 b4 Kf7 d5 c3 d6 c4 g5 c2 b6 c3 b5 a4 b7 h3 b6 h2 Nh3 h4 Qd4 a3 Qe5 a2 Qe7+ Kg6 Qe4 Ra3 Qe3 Nf6 Qc5 Rh6 Nd2 Ne8 Nf2 h3 Qd5 Qf6 Qe4 Nc6 b8N Be6 d7 Bc5 b7 Ba7 Qc4 Bg8 Bb2 c1N Qc5 c2+ Bc3 Nb3 Qa5 c1N Bb2 Nc5+ Bc3 N1d3 Qb5 Na4 Re1 a1B Ba5 Be5 Bb6 Bd6 Nfe4 Nde5+ Kf2 f3 Kg3 f2+ Kf4 Bc7 Bg2 f1R+ Bf2 Qf8 Rb1 Rc1 Ng3 Nf7+ Qe5 Rcc3 Bd4 Nh8 Rb5 Rc2 Nb3 Rca2 Kf3 f4 Qe3 Be5 Qg1 Bh7 Ke4 f3 Ke3 f2 Ke4 Ne7 Nc6 f1R b8N Rc1 Ke3 Qf1 Ke4 Bb6 Na7 Rc7 Nc8 Ba7 Nc6 Bg8 Bf2 Bd6 Ncd4 Nc6 Kf3 Rb7 Ke4 Bdb8 Ndf5 Rc7 Kf4 Kf7 g6+ Kf6 g7 Kg6 Bf3 Bh7 Bd4 Bg8 Qe3 Bh7 Rg1 h1B Rg2 h2 Qg1 Bg8 Rf2 Bg2 Be4 Bh3 Bg2 h1B Rf3 Qa1 Re3 Bg4 Re4 Qf1+ Ke3 Bf3 Rh4 Bh7 Kf4 Bd5+ Ke3 Bdg8 Ke4 Qb1+ Kf4 Qf1+
8/PB1r1bK1/N3r3/4r1NR/Rn3BrP/1r1n1bRP/n2n3k/2qQb1Rb w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 e5 b5 exf4 b6 h5 g3 h4 gxh4 axb6 Nh3 b5 Ng1 b4 Kf2 Ke7 Kf3 Ke6 Ke4 b5 c4 f5+ Kf3 Ke5 a4 g5 e4 d5 c5 d3 h3 g4+ Kf2 d2 a5 b3 c6 f3 Ke3 f2 c7 f4+ Kd3 g3 a6 f3 a7 Kf4 Kd4 b4 e5 g2 e6 Kg3 Ke5 b2 e7 b3 e8R d4 Rh2 d3 Be2 f1N Re7 f2 Ra4 Rh6 Rg7+ Qg5+ Kd4 Be6 c8R Nc6+ Ke4 Ne5 Rb8 Ne7 Ra3 N7c6 Bf3 Bf7 Nc3 b1N Qe1 d1B Rg8 d2 Ra2 b2 Rc8 Bb4 Ra1 Nd3 Ra5 Re6+ Re5 Rb8 Rcf8 Rbe8 Na2 Be2 Kd5 d1R Be4 Nfd2 Nf3 g1R Rh1 Ba5 Qf1 Ncb4+ Kd4 Nc3 Bb7 Rg2 Rg1 b1R Re4 Rb3 Rh8 Nbd5 Nb4 Na2 Na6 N5b4 Rh5 Qh6 Ng5 Bf3 Rh8 Kh2 Rg8 Rg4 Qe1 f1B Rg3 Nb1 Bf4 B1g2 Qf1 Bh1 Rg7 Rc1 Qd1 Rc7 Rg8 Nc2+ Kd5 Be1 Rg6 Re5+ Kd6 Nd2 Ra4 Rcc5 Kd7 Ncb4 Rg8 R8e6 Rg6 Rf6 Kd8 Red5+ Ke7 Rfc6 Rg7 Rd7+ Kf8 Re5 Ne4 Rb6 Ng5 Qc6 Rg8 Qc1 Kg7 Rc6 Rf8 Rce6 Be3 Bc6 Rg1 Bcg2 Rc8 Nb2 Rc3 Nb1 Bd2 Bc6 Rf3 N2d3 Rfg3 Bcf3 Bf4 Nd2
bRn1k3/Br3Nrq/NqR2Kbb/P2P4/B3rrN1/5NnP/qb4q1/4Q3 w - - 0 1 illegal: No possible last move
1r2b3/KQ1Rr3/3PN2B/N1r4P/1bPq1n1q/n2B1rRn/2B5/qnk3Bq w - - 0 1 illegal: No proof kernel
Rbn1n3/1q4qk/n1PN1P2/NR1RP1q1/B1b1b1K1/3R4/2nq1r1B/4br1Q w - - 0 1 illegal: No possible last move, all moves rejected
br1bNb2/1B1Q2N1/PPq1N3/P1n5/2R1nr1b/1n2K3/RBq1r2k/N5rn w - - 0 1 illegal: Other
5r2/1Rb1N3/1nr2PP1/2BNk3/qB4rr/1KpBrB2/PnQ2q2/1nqbR3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 f4 Kd7 d4 Ke6 Kd2 b5 Kc2 h5 g4 c5 g6 e3 g7 h4 g5 h3 g6 b3+ Kc3 b2 Qh5 e2 Be3 e1R Ne2 b4+ Kc2 h2 Qh7 c3 Bg2 c4 Bc6 Nf6 Na3 b1N Ng1 Nfd7 Qh5 Qa5 Qh4 Nb6 Qh5 Ra6 Qc5 Na4 Bf2 Re3 Qh5 Nd7 Nf3 Nb2 Ne5 Nb6 Re1 h1R Bf3 Rh4 g8B+ Kd6 d5 Bg4 Nc6 e5 f5 e4 Ne7 Ke5 d6 b3+ Kc1 c2 d7 Qa4 d8B Bh6 Nb5 Bf4 Nc3 Bh2 Bf7 Rf8 Ncd5 Bg3 Qh7 Bf4 f6 Bh5 Bg2 Bd1 Bf3 Re2+ Be3 Na8 Qg8 Na3 Rh1 Kd6 Re1 Rc6 Rb1 Rg4 Bd2 e3 Rh1 Rh2 Re1 e2 Bb6 Rhh4 Rg1 e1R Rf1 Re3 Nc7 Bh2 Bda5 Nd3+ Kd2 b2 Kc3 Bf4 Re1 Bg3 Be6 Bf4 Bf5 c1Q+ Kd4 c3+ Qc4 Nc5 Ncd5 Nd3 B5e4 Ke6 Bc5 Bc7 Qb4 Qac2 Qa4 Qf2 Ra1 b1Q Qc2 Qb7 Rb1 Qa7 Rb7 Nb1 Kc4 Nb2+ Kb3 Ke5 Bab4 Nb6 Bd3 Qa4#
5r2/8/rN2P2B/2Rn2BB/1BK1QP2/Pqbnbqq1/bR3p2/kb2bNn1 w - - 0 1 illegal: No possible last move, all moves rejected
qR4R1/b2b2rr/1B2pPr1/P3bn2/1P1n2n1/NB1Q1N1R/nk2q1K1/2R2n2 w - - 0 1 illegal: No proof kernel
5k1N/2n2b1P/1q3Q2/P3rpR1/1bN3r1/2Rb3P/nqrbBBn1/4BKbB w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 exf4 b4 axb4 Qc2 d5 Qd1 dxc4 e4 g5 a4 c5 d4 f5 h3 b5 e5 c3 d5 g4 h6 c4 a5 f3 e6 f2+ Ke2 c2 d6 b3 h7 b2 e7 c3 Qd5 b4 Qd1 g3 Qd5 b3 Ra2 g2 Qb5+ Nc6 Qa6 Nb4 Qd3 Be6 Bg5 c1B Ra4 c2 Be3 Bf7 Qd1 Nf6 Ra3 Qb6 Nd2 b1B Ngf3 g1B Ne5 b2 Ng6 Nfd5 Nc4 Bd2 Rc3 Rg8 Nh8 c1R Rh2 Rg3 Rg2 Rc2 Qe1 Rg7 Rg5 Na2 Bg2 f1N Qh4 Rb8 Bh1 Nc7 Bf2 Ne3 Qd4 Rd8 Qf6 Ng2 Kf1 Rc8 Rh5 Rg4 Rg5 Ne6 Be1 Rc5 Bf2 Nc7 Be1 Re5 Bf2 Kd7 e8B+ Kc8 Bc6 Be7 Bb7+ Kd8 Bf3 Ke8 d7+ Kf8 d8B Bb4 Bd1 Rc1 Be1 Bd3+ Be2 Rc2 Bf2 b1Q+ Be1 Qb2 Be7+ Ke8 Bc5 Rf4+ Bcf2 Kf8 Ne3 Rh4 Nc4 Rg4
2kr4/3bRP2/rnp5/bn3n1r/1q1bN1K1/1B4BP/PNRq4/BQ1n2Bn w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 d4 g5 f4 e5 d6 b5 d5 b3 h3 e3 f5 g3 Kf3 g2 f6 b2 f7 g4+ Kg3 c6 Nc3 b1N Bb2 e2 Na4 e1R Nf3 g1N Nd2 b4 Nc3 e4 Bd3 b3 Nf3 e3 Qe2 Rd1 Bh7 Na3 Nh2 Ra6 Na4 Nb5 Ba3 b2 Bc5 b1N Bc2 N1c3 Nf3 Ne7 Bb3 Rh5 Qb2 e2 Ng5 e1Q+ Kf4 g3 Rc1 g2 Ne4 Qb6 Kg4 Nge2 Qb1 g1B Rc2 Nf5 Nb2 Bd4 Rf1 Qf2 Re1 Neg3 Re3 Kd8 d7 Qd2 Re2 Kc7 d8B+ Kb7 d6 Nd7 Bh4 Nh1 Bf6 Be7 Bh4 Bd8 Bg3 Qa5 Ba7 Nb6 d7 Qb4 Re3 Bc7 d8B Bd7 Bf6 Kc8 Bg7 Nbd5 Bc5 Ba5 Re2 Nb6 Re1 Be5 Bg1 Bd4 Ng5 Qf2 Re7 Rd3 Bf6 Nd1 Ne4 Qfd2 Nc4 Be3 Ba1 Rd6 Nb2 Bd4 Be3 Be6 Bef2 Rd8 Bg1 Bd7
nNB5/1q3pN1/P1R2n2/1K3nNN/BP1k1P1b/1bq1R1r1/rr5b/Q2r3r w - - 0 1 legal: proof: d4 g5 h4 gxh4 c4 a5 b3 e5 dxe5 b5 Qd5 bxc4 Qd4 a4 Bb2 a3 Qd1 axb2 Kd2 Ke7 Kc3 Ke6 a4 c5 e4 d5 g4 h5 b4 h3 a5 h2 g5 d4+ Kd2 c3+ Kd3 h4 Kc4 c2 g6 c1B g7 d3 f3 h3 Kb5 c4 Qb3 d2 Na3 d1R Qa4 b1R Nc2 c3 Ra3 Nf6 g8N Qc7 a6 Be7 Rb3 Bf4 Qa1 Rb2 Be2 Bg3 f4 Nbd7 Nf3 Nb6 Rf1 h1N Ng5+ Kd7 e6+ Kd6 e5+ Kd5 Rf2 h2 Bg4 Qb7 Nd4 c2 Re3 c1Q Nc6 Qc3 Nb8 Kd4 Rc2 Bd8 e7 Be6 e8N Bb3 e6 Rh3 Nd7 Rc8 e7 Rc6 Ng7 Na8+ Nb6 Rc7 e8B Re7 Bc8 Re4 Rf3 Re2 Re3 Ra2 Rc1 Reb2 Bed7 Be1 Bc6 Ng3 Be8 h1R Bed7 Nd5 Nf6 Nf5 Nfh5 Bg3 Bc6 Nf6 Be8 Qg2 Nd7 Bh2 Nb8 Rg3 Rc2 Qe1 Rc6 Qc3 Bed7 Ng4 Ne4 Bh4 Ng5 Nf6 Be6 Bc2 Bb3 Qe4 Ba4 Bb3 Rf3 Qe7 Re3 Qb7+
n1q5/K2p1qNB/RnkP4/8/1BnrPn1P/b2nNN2/3bRrb1/1rNQ4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 f5 h4 a5 c4 g5 d4 a4 c5 b3 b6 a3 b7 a2 c6 f3 Ke3 g3 d5 f2 Kd4 f4 e3 b2 c7 g4 Bd2 f3 Bb5 f1N Bc3 f2 Qe2 g2 Nd2 b1R Qd3 g3 Rh3 Ke7 Kc5 Ra4 Kb6 Kd6 Ngf3 g1B Ne1 g2 Ndf3 Rd4 Rg3 Nd2 Ng5 f1Q Rg4 Nf6 Ngf3 Na6 b8N Bb7 Nc6 Qc8 Rg7 Nc4+ Ka7 Be7 Nd8 Rf8 Ba4 Bf2 Qd2 g1N Nd3 Ne2 Nc1 Nf4 Ne6 Be1 Qd1 Bd2 Rg2 Ba8 Ng7 Kc5 Bc2 Kb5 Nh2 Ba3 d6 N6d5 Nf3 Ndb6 Bh7 Kc6 Ng5 Qf3 Bb4 Qd5 Nf3 Qf7 Qb3 Qd8 c8N Nc7 Qc2 Bb7 Qd1 Nca8 Ng1 Kb5 Re2 Bg2 Ne7 Qc8 Nef5 Kc6 e4 Rb2 Rb1 a1N Nf3 Nc2 Ra1 Rb1 Ne3 Ne1 Ra2 Ned3 Ra1 Bb2 Ra4 Ba3 Ra6 Nh3 Nh5 Qg6 Nh2 Rf2 Ng7 Nhf4 Nf3 Qf7
2r1n2q/1K1BbqQ1/2n1n1N1/N4b1P/2P1BRP1/bq1pB1Bk/8/4rRnr w - - 0 1 illegal: No proof kernel
bR1B1NQn/3r3q/k3r2P/P7/K3pqn1/1NN1br1B/R2bn2P/qNn5 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Kd2 b5 a4 d5 c4 Kd7 Kc2 Kc6 Kb3 Kb7 f4 e5 h6 g5 a5 e3 c5 e2 f5 e1N c6+ Ka6 c7 g4 f6 d3 f7 g3 Bg5 d2 Bg2 d4 Bf4 d3 Bg5 Qd6 Be4 g2 Be3 Nf6 Ra4 Nbd7 Qe2 d1Q+ Qc2 d2 Bd5 Nd3 Bf3 Bb7 c8N Nc1+ Kb2 b3 Na7 b4 Nc3 Ng4 Nab5 Re8 Ra3 Re6 Ra1 Ba8 Nh3 g1B Bd4 Be3 Kb1 b2 Nf4 e4 Bg2 Nde5 Ra4 Ng6 Nfd5 Qf4 Ra2 Qe1 Qd3 d1R Kc2 b1N Bb6 b3+ Kb2 Rh7 Bd8 Nh8 Qc4 Bb4 f8N Rd3 Bh3 Rd7 Rf1 Qh4 Rh1 Qe7 Nd4+ Ka7 Qc8 Qh7 Qb8+ Ka6 Rg1 Na3 Nb1 Bbd2 Ndc3 Nc2 Rd1 Bf2 Rg1 Rf3 Re1 Bfe3 Rf1 Na1 Ka3 b2 Ka4 Nc2 Nb3 Nd4 Re1 Nde2 Rd1 Be1 Rd4 B1d2 Rb4 Qff5 Qg3 Qg5 Rb8 Qf4 Na3 b1Q Qg1 Qa1 Nab1 Nf6 Qg8 Ng4
1b1q2K1/N1b2n1n/Pr2pqP1/Q2B1B2/2R1qRNq/3N1nN1/b1r1P3/1r1k4 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 g5 fxg5 h6 g6 Qa5 g7 Qd8 g4 Qb6 g5 Qc7 g6 Qd8 Bg5 hxg5 Kd2 b5 Kd3 f5 c4 d5 a4 Kd7 h4 Kc6 c5 f4 a5 b3 h5 b4 h6 Kb5 h7 f3 c6 g4 c7 f2 a6 b2 Nh3 g3 Rh2 g2 Ng5 g1B Ra3 b3 Nf7 Kb4 Qc1 Be6 c8B Nc6 Rh5 Rb8 Nd6 Nf6 g8N Rb6 Bb7 Bh2 Nc3 b1R Na4 b2 Rh4 Ne5+ Kc2 Nf7 Nc8 Bb8 Bg2 f1Q Be4 d3+ Kd2 d4 Rf4 Ba2 Qc7 e6 Nh6 Bd6 Bbd5 Re8 h8N Nh7 Nc5 Qh4 Qd8 Bdc7 Bf5 Qfh1 Ra5 Qe4 Na7 Rg8 Qg5 Rc8 Qd8 Qf6 Rb5+ Ka3 Rb4 Qh4 Rc4 Qf6 Rf1 Qeh4 Ne4 Kb3 Ng3 Qe4 Ng4 Qh4 Rfc1 Qf6 Ke1 d2+ Kf2 d3 Rf1 Qh4 Qg5 d1Q Qd2 Qc2 Qa5 Qf4+ Kg2 d2 Rf2 Qf6 Kh3 d1Q Rf1 Qce4 Rf3+ Qc3 Kh4 Kc2 Kh5 Qdd3 Rf2 Kd1 Rf3 Qf6 Rf2 Nfg5 Nf7 Qdd4 Nfe5 Nf7 Rf3 Qd8 Nd3 Q4f6 Ne1 Rc1 Rf2 b1N Nd3 Nd2 Rf3 Rcb1 Rf2 Qf4e5 Rf3 Q5d4 Rf4 Nd6 Kh6 Nf3 Nh5 Qf2 Ng3 Qh4+ Kg7 Nf7 Rd4 Bd6 Rb4 Rc2 Ra4 Bdc7 Rc4 Qdf6+ Kg8 Q2d4 Bc6 Qd6 Bd5 Qdd8#
1nnk2KB/2b3P1/2n4q/r2q1p1P/BQP2R1N/1N2bRrb/2B1r1B1/3rq3 w - - 0 1 illegal: No proof kernel
8/1RP4k/b1Kpq1rb/2Q2NrB/Pq5b/Pr2r1nB/2B2Nn1/BRq2n2 w - - 0 1 illegal: No proof kernel
N1r1NRrb/rRP2KP1/2nb1Q2/B3pqrk/3N3N/4q2B/b2P1nn1/q7 w - - 0 1 illegal: No proof kernel
3N1b2/qPrr2bP/4q1q1/3b1B1k/1n1BB1p1/nK2N1P1/n1R2Rn1/2Q1rB2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kf2 b5 axb5 h5 Ke1 h4 Qd3 h3 Qf3 Rh6 Qf2 Rh8 Qg2 hxg2 Kd1 g5 h4 a5 e4 d5 c4 f5 Kc2 Kf7 b4 Kg6 b6 g4 b7 f3 e5 f2 b5 d3+ Kc3 f4 b6 a4 c5 a3 c6 a2 c7 d2 e6 d1Q e7 f3 Bh6 d4+ Kb4 d3 Bg5 d2 Ne2 g1Q Kc3 Qd6 Nd4 Be6 c8B Na6 b8Q Nb4 b7 Nh6 e8B+ Nf7 Rh3 Kh5 Rh2 Rh7 Be3 Qe1 Bcd7 Bd5 Bdb5 Qg6 Qf4 Rd8 Bbc6 Ne5 Ne6 Nc4 Bed7 d1N+ Kb3 Nc3 Nd2 Na3+ Nc4 Rg7 Rb1 a1B Rb2 Nca2 Bd4 Qee4 Bc8 Rdd7 Nd8 Qee6 Qc1 Rc7 Rc2 Rgd7 Bd3 f1N Rhf2 Ne3 Bf1 Be4 Bd5 Ng2 Ne3 Bc3 Bc5 Bcg7 Bd4 Kh6 h5 Kg5 h6 Kh5 Rfd2 f2 h7 Bf3 Bb5 f1R Rf2 Re1 Bf1 Qb6 Be4 Qa7 Rfd2 Qh1 Re2 Qh4 Red2 Qhf6 Rf2 Qe6+ Kb2 Qef6 Bd5 Re7 Bf5 Qe6 Kb3 Red7 Bdc4 Bc6 Bd5 Nc4 Bf3 Bd5 B3e4 Na3+
3b4/r1rb1KB1/5BB1/rN1Rb3/Pn3r2/nr2pn1R/B2Pk2P/qNQ1r3 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 Kg6 e5 a4 b5 f4 c5 a6 c3 a7 e3 f5 b4 f6 c4 f7 g3 Qf3 c2 Qc6 e2 Qe6 Kd3 Bh3 e1R Qf5+ e4 Qc5 b3 Qc6 e3 Qc5 c3 Ne2 g2 Ng3 g1R Bg4 b2 Bh5 Nc6 Qe5 Rh7 Qe6 Be7 f8B Qd4 Qf7 Nf6 Bf3 Rgf1 Qg8 Na5 Qa2 Nd5 Bg4 Bd7 Rg1 Bd8 Be7 Nb4 Qg8 Rf4 Qd5 Nc4 Qh1 Na3 Nf5 Rh5 Bh3 Ke2 Kf7 g5 Bf6 g4 Nd6 g3 Nb5 g2 Be6 Rd5 Rf1 g1N Rf3 Re5 Rh3 Nf3 Ba2 Ref5 Nc7 Ra5 Qg1 Rb8 a8B Rb7 Qh1 Rba7 Be4 Nb5 Na3 b1R Bg6 Rb3 Nb1 Na3 Bb2 c1B Nb5 c2 Bc3 Bb2 Qg1 c1R Qh1 Re4 Bg7 Qd3 Bcf6 Rcc7 Qg1 Rf4 Qh1 Nd4 Qc6 Qf5 Qc1 Nf3 N1c3+ Kd3 Bf8 Nc6 Nd4 Rb8 Rb1 Ba1 Rb2 Rb4 Rc2 Rb3 Bg7 Nb4 Ndb5 Bb2 Nd5 Be5 Rc5 Ke2 Ndc3+ Kf2 Rd5 Qb1 Bh7 Qa1 Bg6 Kf1 Nb1 Ke2
3Rqnnq/3bn3/1q5q/1P1k1KNB/1B2NpR1/2r2P1q/2Q1P1q1/1N2Nb1r w - - 0 1 illegal: No possible last move
2Q1K1R1/n2r2r1/bR1p1r2/2b1N1k1/N5Pb/RPr1n1PR/2B3b1/n1B1q2r w - - 0 1 legal: proof: f4 b5 d4 c5 a4 cxd4 h3 bxa4 f5 g5 f6 g4 hxg4 exf6 Kf2 f5 Ke1 f4 Kd2 Ke7 Kd3 Kf6 Kc4 h5 Kb5 a5 c4 h4 e4 d3 g3 d2 b3 h3 c5 f3 c6 h2 c7 a3 e5+ Kg5 e6 f5 e7 a2 e8R a4 Re1 a3 Re8 f2 Re7 f4 Ne2 f3 Rh7 Nc6 Rh3 Qe8 Kb6 Ba6 c8R Bc5+ Kc7 Na7 Qe1 Nf6 Rb8 Rh7 Rh6 Rg7 Bb2 d1R Bh3 f1B Bg2 f2 Be4 Bg2 Nec3 f1R Nd2 Rc1 Na4 Rc3 Rb6 Rd8 Bc2 d6+ Qe7 Rf2 Qd7 Qe1 Nc4 Rf4 Rf1 h1R Rh3 Rff3 Ne5 Rf5 Rd1 a1B Bc1+ Rf4 Rd4 a2 Rdb4 Bb2 R4b5 a1N Ra5 Rh8 Rf3 Rhh7 Kd8 Nd5 Ke8 Ne3 Qc8 Rf6 Rf2 Rd7 Rf4 Rhg7 Rf1 Rfg6 Rf8 Rf6 Rg8 Bba3 Rb4 Bb6 Rbb5 Bd8 Rb6 Be7 Nb2 Bb4 Ra3 Bc5 Na4 Rf7 Qb7 Kf6 Nd3 Kg6 Qc7 Bh4 Ne5+ Kg5 Qc8 Rf6
BK5n/RqB3q1/p3n2P/1k1Pqbqn/1qq1QrR1/6b1/1r1PNNR1/5R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 h4 c5 b4 f5 e4 g5 b5 f3 Ke3 c4 Kd4 a3 Ke5 a2 h5 g3 h6 f2 b6 c3 b7 c2 Qh5 f4 Ne2 g4 Bg2 f1N Bb2 c1Q Bf3 g2 Ba3 g1Q Bb2 a6 Nbc3 g3 Qg4+ Kc7 Ba3 Kb6 Bb4 g2 Nd1 Nd7+ Ke6 Bd6 e5 Ng3 Qg7 Qgc5 Bc3 g1Q Ba5+ Kb5 Qh7 Nh5 Bb6 Ne7 b8R Rf8 Rh4 Ng6 Nf2 Qb4 Rg4 Nh8 Rb7 Qg5 Qe4 Rb8 Ra7 Qc6 Rf1 a1Q Bc7 Qh2 Bg2 f3 Bh3 Rf4 Rg2 Qhg3 Bf5 Qg7 Bg6 Qg5 Be8 Qac3 Ra1 Qd8 Ng3 Rf5 Rag1 Qa4 Re1 Qb7 Nh3 f2 Bb6 f1Q Nf2 Qfc4 Rf1 Kb4 Ne2 Qh4 Ba5+ Kc5 Bd8 Qa8 Ba5 Rb2 Bb6+ Kb5 Bd8 Bc5 Ba5 Be3 Kd6 Bf4 Bb6 Bh2 Bd8 Rf4 e6 Bg3 e7 Qf7 Ba5 Q3d4 Bb6 Qab3 Ba5 Qcb4+ Kc7 Q3c4+ Kd8 Qe5 Bb6 Qac6 Bc7 Nf8 Bd7 Qg4 e8R Qgf5 Re6 Qfg7 Rg6 Qg4 Be8 Bf5 Rg5 Ne6+ Kc8 Qh4 Rg4 Qcd7+ Kb7 Qhg5 Kb8 Kc5+ Ka8 Qdb5 Bc6 Q5a4 Bb7 Qc6 Kb8 Kb5 Ba8 Qb7+
3n1R2/knQ3p1/n1q1rb2/N1RPn2n/2N1Bq2/1P4B1/4PB1B/1Kbb2nr w - - 0 1 illegal: No proof kernel
r1Rn3r/k3p1K1/2Rnrq1P/nrNB2P1/P3Nb1N/Nb6/1Q1b4/B3r2b w - - 0 1 illegal: No proof kernel
krb2q2/P1bB2n1/3r2rB/4NPrR/bN1RqP2/2QN4/1r1p4/K1r1Nn2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 g4 h5 a4 e5 f4 d5 c4 Kd7 Kc2 Kc7 Kb2 Kb7 c5 b3 g5 b4 g6 h3 g7 h4 a5 d3 Nf3 h2 Ra2 e4 Nbd2 e3 Be2 d4 Rg1 h1B Kb1 h3 Bb2 h2 Qe1 Rh5 Ng5 Nh6 g8N Nc6 Bc1 b2 Qg3 Rb8 a6+ Ka8 a7 Ng4 Nc4 d2 Nf7 d1R Ne7 d3 Ng8 Rg5 Ne7 Nd4 c6 Ne6 c7 Ng7 Ra3 Bc6 Nd2 h1Q Nd5 Nh2 Ra4 Qe4 Ne5 Nf1 Ndf3 Bd6 Rh1 Qf8 Ne1 d2+ Bd3 e2 Rh5 Rg6 Ka2 b1R Ba3 Rdc1 Bb5 Rc2+ Bb2 Rd1 Qc3 B6d7 N5d3 Bc6 Nc1 b3+ Ka1 B6d7 Nb4 Be5 Nf3 e1R Ba3 Re3 Ne1 Rd3 Bb2 Be8 Bd7 Rdd6 Ba3 Ba6 c8N b2+ Ka2 Bb7 Ne7 Bc8 Ncd3 b1R+ Bb2 Rg5 Ng6 Rdc1 Nd5 Rd1 Rd4 Rdc1 N5b4 Rd1 Be6 Ba4 Bd7 Rdc1 Ne7 Rdg6 Nec6 Bc7 Nce5 Rd6 Qb3 Rcc6 Qc3 Rdg6 Ba1 Rb3 Bb2 Rc2 Ka1 Rcf6 Ba3 Rbb2 Na6 Qd8 Bf8 Rd6 Nab4 Qe8 Be7 Qf8 Bf6 Rg2 Bg5 Rg3 Bh6 Rg1 Be6 R1g5 Bd7 Rc1+
r3k1n1/2q4r/2q1qnPb/1R2pNP1/4qN2/qP3N2/2bb1QR1/KBBN2b1 w - - 0 1 illegal: No possible last move, all moves rejected
BR4bK/3kbrb1/1rqPR2n/1N2B1N1/qb2Pb1r/RQnR1rp1/4P3/8 w - - 0 1 legal: proof: g4 d5 c4 dxc4 b4 a5 g5 axb4 f3 e5 g6 e4 fxe4 hxg6 Ba3 g5 Bc1 g4 Kf2 g5 Kg3 c5 h4 b5 d4 f5 a4 b3 a5 f4+ Kf2 g3+ Kf3 b4 d5 g2 a6 b2 d6 b3 a7 c3 h5 g4+ Kf2 c2 h6 c4 h7 g3+ Kf3 c3 Rh4 Nc6 Ra6 Nce7 Bd2 c1B Ra2 c2 Bb4 Qc7 Na3 b1Q Ba5 b2 Qe1 Kd7 Kg4 f3 Kh5 f2 Rf4 Qa1 Qc3 b1R Nf3 g1B Qb3 Nd5 Kg6 Nc3 Ng5 Nh6 Rf6 Bf4 Re6 c1B Nb5 Qc6 Bh3 f1R Rd2 Qa4 Rd3 Bc5 Bf5 Rb8 a8R Bb4 Bd8 Bcd2 Bf6 Rb6 Be5 Rf3 Bg4 Be7 Kg7 Rbf1 Bh5 R1f2 Bf7 Ba6 Nd4 Bc4 Nb5 Rh2 Rb8 Rf8 h8R Rh4 Bg8 Rf6 Ra8 Bde3 Bf7 Rf5 Rhb8 Bd4 Bg8 Rf7+ Kh8 Bf8 Bg7 Bf6 Ra5 Qa2 Ra3 B6e7 Be5 Qc2 Qa2 Qa4 Qb3 Rf5 Rg6 Rf6 Bd5 Rf7 Re6 Rf5 Qb1 Qc7 Ba8 Qc6 Rf6 Bg8 Re6 Rf7 Qb3 Bg7+
1Nb1QR1b/k5n1/B1P1p1K1/4N3/1nnr2R1/1q1P1P1q/Rr3b2/R1B2bbn w - - 0 1 illegal: No proof kernel
1B1qb2N/1QPR4/1q2k2N/b1p1n3/2N2b2/r1bB4/1Pqr1N1P/1bn1Kq1R w - - 0 1 illegal: No proof kernel
1R2QbN1/pB4q1/R1r2Bq1/N3q3/P1b2Pnb/1r2qbR1/1n1qR2P/K4k2 w - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b3 h5 b4 hxg4 bxc5 d5 Qc2 dxc4 Qa4+ Nd7 Qd1 Nb8 a4 Kd7 d4 Kc6 Kd2 Kd5 Kc2 e5 Kb2 b5 f4 g5 c6 e3 c7 Ke4 d5 g3 d6 g2 d7 e2 Be3 e1B Na3 b4 Bc1 g4 Rb1 c3+ Ka2 c2 Kb2 b3 Bd2 c1Q+ Ka1 b2+ Ka2 g3 Ba6 Rh6 Qh5 Nf6 Qg4 Bb7 c8R Nc6 Rc7 Nb4+ Kb3 Nd3 Ka2 Rb8 Ra1 b1B+ Kb3 Nb2 Nc4 Kd3 Qg6+ e4 Nf3 Ke2 Bc3 g1Q Na5+ Bd3 Ka2 e3 Qe8 g2 Nh4 Kf1 Nf5 e2 Ne7 Bf3 Ng8 Rb3 Bb7 Bc4 Rc6 Bh4 Ra6 e1Q Bd4 Qc7 d8R Qcd2 Rb8 Qg7 Rd1 Rh5 Bc3 Rc5 Rc1 Rc6 Ka1 Kf2 Rd1 Qe6 Rb1 Ke2 Rc1 Qge3 Rhe1+ Kf2 Rb1 g1Q Rbc1 Q1g6 Rg1 Rc5 Rg3 Ng4 Bf6 Q6e5 Re1 Rc6 Re2+ Kf1
2Nb1n2/pr2QqBk/1Nb4q/N1P3qq/3b3R/4P2K/P2B1nRb/1r3N1b w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 g6 f3 Bg2 fxg2 Bd2 hxg6 Be3 g5 Bc1 g4 f4 Kf7 Kf2 Kg6 Kg3 d5 h4 b5 c4 d3 c6 d4 f5+ Kh7 c7 g5 f6 d2 h5 b4 f7 b3 c5 b2 h6 d3 Rh2 Be7 f8B Qd6+ Kf2 g3+ Kf3 g4+ Ke4 Nd7 Kf5 Ngf6 Rh1 Bd8 Nc3 b1B Kg5 Ne4+ Kh5 Nf2 Rh2 Rb8 Bg7 Nf8 Qb3 d1Q Qc2 Bd7 c8N Qf1 Rh4 Bc6 Nd5 Rb7 Nf3 g1Q Bd2 g2 Ndb6 g3 Nh2 Qf4 Qa4 Qh1 Qd1 g1B Qe1 Qfg2 Nf1 Bh2 Bc1 Bc2 Bd2 Qgg1 Rb1 g2 Rb2 Bb3 Rc2 Bbd5 Rb2 Nd1 Rc2 Qf7+ Kg4 Qe3 Rb2 Qg5+ Kh3 g1B Rc2 Bd4 e3 Kg6 h7 Be4 Qg3 Bf3 Qe5 Rg8 Bc1 d2 Qe7 Rh8 Nc4 Rb1 N8b6 Bfd5 Na5 Rg8 Bh6 Rg7 h8N+ Kh7 Rb2 Nc3 Rc2 d1Q Rg2 Qdh5 Bd2 Nd1 Ng6 Qg1 Rg4 Bh1 Rg2 Qgf2 Nb3 Q2f4 Na5 Rg8 Bg7 Qd6 Nf4 Qdh6 Nc8 Rh8 Nd5 Rg8 Bf6 Rg7 Ndb6 Qc4 Qe5 Rb7 Qe7+ Qcf7 Bg7 Nf2+
NBn1B2K/1R3b2/2N4N/1n1qpq2/bPrPnb1k/q2Pb3/2r1Rn1N/5Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c3 g5 e5 gxh4 e6 d4 cxd4 fxe6 Ne2 e5 Ng1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 Kg5 b4 h5 g4 a5 f3 c5 d3 h3 f4+ Kh4 g5 c4 f5 c3 f6 h2 g6 c2 g7 a3 f7 a2 Qd2 a4 Bb2 c1B Ne2 a3 Rg1 h1B Rg3 Nc6 Nf4 Qd5 Be2 Nf6 g8N Be6 Bd1 Na7 Rg7 Rc8 Nh6 Rc4 Ba4 Nc8 Be8 Rg8 Rh7 Rg2 Rg7 Bd7 Ne6 Ba4 Nd8 Rh2 Nc6 Bg2 Ke2 e3 Qd1 Ne4 Qf1 Be7 f8N Bg5 Rh7 Bf4 Ne6 Bh3+ Kf3 e2 Nd2 e1Q Rb1 a1Q Rb7 a2 Nc7 Be6 Na8 Bf7 Ba3 Qc3 Rb2 a1N Ra2 Nc2 Bb2 Kg5 Ba3 h4 Rb2 Kg6 Kg4 h3 Nf3 Qf2 Ra2 Bcd2 Bc1 Na3 Rb2 Bde3 Re2 Nb5 Bd2 Kg7 Kf5 Qa3 Be1 Rg2 Nh2 Qf3 Bh4 Rf2 Re1 Rfc2 Bd8 Kh7 Bc7 Kg7 N2g4 h2 Bb8 h1N Nh2 Nhf2 Re2 Kh7 Ng8 Nd2 Kf6 Qfe4 Nge7 Kh6 Nf5+ Kh5 Nh6 Kh4 Kg7 Qf5 Kh8 Nde4
4r1q1/1n3n2/1bk3PN/1b1q1BP1/b2nQNP1/Bn3R1B/1qr1q2p/1R4KB w - - 0 1 illegal: Other
1N1Rr2k/N7/R3Pq2/rK2B2q/1n1Qp3/1P1PnbbB/bqBb4/1Bnq4 w - - 0 1 illegal: No proof kernel
1B1R2rR/K6q/bnbNP2n/n1k1qPRq/2Bn3N/7q/2Q3pP/R3b2r w - - 0 1 illegal: No proof kernel
r3q2n/rb2n1nP/qR1K3b/6BQ/1PpNNqR1/3k4/q1Nn1Pr1/3B1N2 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc3 Kd5 d4 g5 b4 a5 h4 e5 b6 e3 h5 Ke4 h6 e2 b7 e1Q+ Bd2 g3 d5 g2 d6 a4 h7 a3 d7 g4 Qa4 a2 Qa5 g3 Rh6 Qb6 d8N Ne7 Qa4 Nd7 b8N Nf6 Rg6 Bb7 Qa7 Nh5 Rc6 Bh6 Nf3 g1R Na3 g2 Nh2 Ng7 Ng4 Qa6 Rb1 a1Q+ Rb2 Qa2 Qb6 Ra7 Nd7 Rg8 Ne6 Rga8 Nd4 Qe3+ Kc2 c3 Qb5 c4 Rb6 Qg5 Ne3 Qf4 Kc1 c2 Rb3 Rh1 Rc3 g1N Be2 Nf3+ Nf1 Nh4 Bd1 Rh2 Rg3 Rg2 Rg4 Kd3 Nf6 e4 Qh5 e3 Ne4 e2 Be3 e1Q Bd2 Qb3 Be3 Qba4 Kb2 c1N Nac2 Nhg6 Bd2 Nh8 Be3 Qf8 Bg5 Qae8 Ned2 Nb3 Ne4 Na5 Ka3 Qe2 Kb2 Qf4 Ka3 Qd8 Ka4 Qe8+ Rc6 Qd7 Nce3 Qb2 Nec2 Qd8 Rf6 Qad6 Kb5 Qa6+ Kc5 Qe8 Rb6 Qa2 Bf3 Nec6 Bd1 Nb3+ Kd5 Nd2 Kc5 Qe3 Kd5 Ne7+ Kd6 Qf4+
2N2qkr/Q3Pp2/n1rqR1b1/P1R1N1R1/K1P2n2/B4b1q/2B2b2/1bRr1r2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 d5 c4 b5 Kc2 g5 Kb3 g4 h4 d3 a4 d2 e4 f3 a5 f2 h6 d4 h7 g3 e5 d3 h5 g2 e6 Ra6 h6 Rc6 Qf3 d1Q+ Kb2 b3 Qe4 b4 Qd4 d2 Nc3 Nf6 Qa7 Nh5 Nb5 Bc5 Bd3 Kf8 Nf3 g1Q Bc2 f1R Nd6 Bb7 Nc8 Qe3 Rg1 Na6 Rg5 Nf4 Ne5 Qh3 Rb1 Bf2 Ra1 Rg8 h8R Qd6 Rh7 Rh8 Rhg7 Qdf3 h7 d1R R7g6 Qe4 Rh6 Qg6 e7+ Kg7 Kb1 b2 Ka2 b1B+ Kb2 b3 Rhh5 Qde6 Ka3 b2+ Ka4 Qd6 Rh6 Qd8 Rhh5 Qf8 Rh6 Rg8 h8R Ba8 Rhh5 Bb7 R8h6 Rh8 Bd3 Kg8 Bc2 Qgg7 Re6 Qg6 Bb3 Be4 Bc2 b1B Ba3 Ba8 Nd7 Bd3 Rc5 Qgg3 Ne5 Bg6 Rg5 Qd3 Rf5 Qd6 Rg5 Ba2 Rc1 Bb1 Rg1 Rb6 Rg2 Bf3 Rg5 Rc6
1b3rbN/q1p1B1n1/1bB2NRK/3q1P2/r1k1NRrN/4b3/3Q1PP1/nr4q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 e5+ Kh5 b5 a4 e4 d4 b3 a5 b2 a6 c3 a7 e3 Rh2 h3 Nf3 c2 Rh1 e2 Qe1 b4 Ra3 h2 Rc3 b3 Bd2 c1B Rg1 h1Q+ Nh2 Nd7 Rd3 Kc4 d5 Ngf6+ Kg5 h5 d6 h4 Nf3 h3 Re3 h2 Re5 Ne8+ Kg6 Ng7 Nc3 b1R Bf4 b2 Re7 Nc5 d7 Be3 Re6 Nb3 Bd6 Na1 Qd2 Rc1 Ne4 b1R Bb4 Bfc5 Nh4 Rf8 Kh7 Bb7 Rg6 Bd5 Ba3 Qb8 d8N Rb4 Nf7 Rcb1 Nh8 Bcd4 Rg5 Bg8+ Kh6 Ra4 Bd6 Qd8 Bc5 Qd5 Be7 Rae8 a8N Ba7 Nf6 Bb8 Ne4 Kb3 Nb6 e1B Bd3 Rd8 Rf1 Qg1 Nd7 h1Q Bb5 Bb6 Bc6 Kc4 Rg4 Qh3 Rg5 Qe3 Ndf6 Qed4 Rg6 Rde8 Qg5 Bd2 Re1 Bc1 Re3 Rc8 Rf3 Be3 Rf4 Rcd8 Qh5 Rd6 Qd1 Re6 Ng5 Re4 Qd2 Q4c5 Rf3 Rg4 Rf4+ Qcd4 Nge4 Q4c5 Qd1 Qa5 Qd2 Qa7
1R2K1N1/1PRP4/br1PR2p/k4bnr/4Q2R/1qbnN3/B2brq2/q2q2B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 c5 e4 Kc7 g4 Kb6 b4 h3 d4 f3 b5 a3 d6 h2 d5 f2 g5 h6 g6 c4 d7 f4 Ke6 a4 Kf7 a2 e5 f3 g7 a3 e6 c3 e7 c2 e8R Ra6 Qd4+ Ka5 Bd2+ Bb4 Be3 c1B Qc3 Nf6 Qe1 Nh7 Bh3 f1B Nc3 f2 Re6 Re8 Nd1 Bc3 Nf3 B1d2 Rc1 a1Q Ng5 a2 Ne4 Qb2 Nf6 a1Q Ng8 Qb3 Bd4 Bd3 Qe4 Rb6 Ne3 f1Q+ Bf5 Ba6 d6 Qfd1 Bh3 Qg5 Bf1 Bb1 Bc4 Nc6 Rc2 Qgg1 Bd5 Qba4 Ba2 Nb4 Rc1 Nd3 Bc5 Rc6 b6 Qab3 b7 Rb6 Bd4 Rc8 Rc2 Ng5+ Ke7 Rc5 Ke8 Re5 Bc5 Qf2 Bd4 Bb4 Rc7 Bbc3 Nf6 Bb5 g8R Ba6 Rf8 Bc2 Ng8 Bb1 Ke7 Bc2 Rb8 Bb1 Ke8 Bc2 Rg1 h1R Rg4 Rh5 Rh4 Qfe1 Nd5 Qg3 Bg1 Qf2 Qh1 Re2 Ne3 Nc1 Qc6 Bf5 Qe4 Nd3
2k1N1n1/1pq1PrbR/4N1P1/R3r3/1q2q2b/B3r1Qn/1Pb3Nr/1q1N2BK w - - 0 1 illegal: No possible last move
2k1N2b/P2R4/n2brbB1/r1B5/4p1q1/nR1qnQ1B/1nPP1B1N/1b2Kr2 w - - 0 1 illegal: No possible last move, all moves rejected
2N4r/Pn1n1P1Q/1r2r1BB/bp1r1b1b/3n1q1P/k2BbBR1/5N2/3R2qK w - - 0 1 illegal: No possible last move, all moves rejected
2Rnq3/p5nq/B2PrkBR/2rQb3/4bB2/B4qPN/7P/NKn1b1nb w - - 0 1 illegal: No proof kernel
3R1q2/2K2Nbp/1QN3B1/2r1bPr1/N2Rbrb1/2Pr4/1nbB1Pn1/3bNk2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 a4 e5+ Kb5 d5 g4 b3 a5 h3 g5 b2 g6 h2 g7 d3 a6 d4 a7 d2 Nh3 d3 Ra5 Nc6 Ng1 Nb4 Nh3 Nf6 g8N Nfd5 Ra4 Ne3 Na3 b1B Nf4 Bg7 Ne7 Ng2 Nh3 Rg8 Nf4 Qf8 Kc5 b5 Kb6 Ba6 Nh5 Rc8 a8N Rc5 Rg1 h1B Qe1+ Kf3 Nc6 d1B Na7 d2 Bd3 e4 Qf1 e3 Bb2 e2 Nf4 e1B Bc4 Nd3 Bc1 b4 Bf7 b3 Bg6 Nb2 Ne6 Bae2 Nc6 Bf6 Kc7 Rg7+ Bf7 Rg5 Nd8 Nc4 Rb4 Nge3 Rg4 Bg7 Nb6 b2 Qg1 Bg2 Qh2 Bh1 Qd6 Bg2 Bg6 Bh1 Rf4+ Kg2 Qe6 Kf1 Nb5 Bg4 Qf7 Bdf3 Rb3 d1R Rd3 Bec3 Na3 Bcf6 c3 Bhg2 Rd6 Rd3 Bd2 Bd1 Na4 Bd5 Nc2 Ng2 Ne1 Bbc2 Re4 b1R Rf4 Rb4 Qd7 Ra5 Nf7 Nb2 Qe8 Rbd4 Qb8 Rc5 Qb6 Rb4 Re4 Rbd4 Re8 Rf4 Red8 Be4 Rd4 Be5+
2R1rr2/q2n1q2/pN6/P1Nr4/2P3K1/1P2bnB1/k1B1rrq1/BRnn1BQ1 w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 c5 hxg4 c6 bxc6 Kf2 c5 Ke1 c4 d3 c5 Bg2 c3 Be4 c2 Bc6 c4 Bg2 c3 Bh3 Ba6 Bf1 Bc4 dxc4 Qf6 Bh3 Qe7 Bf1 Qd8 Kf2 Ke7 a4 g5 e4 f5 h4 d5 b3 Kd6 e5+ Kc5 h5 Kb4 a5 g3+ Kf3 a6 e6 g2 h6 d4 e7 d3 e8B d2 h7 g4+ Ke2 f3+ Ke3 f2 Kf4 g3 Kf3 f4 Ra3 Nf6 Ba4 Nc6 Qe1 d1N Bd2 c1R Be3 Qd4 Ra2 Qa7 Rc2 Nd7 Rh4 Bh6 Qe2 Nd4+ Kg4 f3 Qd3 Rhf8 h8B Rae8 Rb2 c2 Nc3 Ka3 Nh3 g1R Bf4 g2 Bg3 Be3 Nf4 Ra1 Bf6 c1N Rb1 Ra2 Ne6 Re2 Nd5 Ka2 Bc6 Rh1 Qc3 g1Q Rh8 Rh5 Qe1 Qg2 Nb6 Rd5 Nc5 Qg1 Bh3 Qg2 Qg1 f1Q Bg7 f2 Rg8 Nc2 Ba1 Nd4 Bb7 Nf3 Bc8 Nb8 Bf5 Nd7 Bc2 Qe1 Bb2 f1R Ba1 Rff2 Rh8 Qh2 Bf1 Qg2 Rh6 Qc3 Rc6 Qf6 Rc8 Qf7
b5q1/n2r2P1/BQq2kN1/2r3b1/pbq2P1q/B1R1R1b1/Pqr1N3/K1B1B3 w - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 c5 fxg4 c6 bxc6 Ba6 c5 Bf1 c4 h3 g5 Rh2 g3 Rh1 Nc6 h4 g4 Bg2 Nd4 Bh3 Ne6 Bf1 Ng5 hxg5 Bh6 Nh3 Bg7 Ng1 Bf8 d4 Kf7 Kd2 e5 Kc2 h5 f4 c5 b4 a5 Kb2 c3+ Kc2 c4 d5 g2 g6+ Kf6 d6 a4 b5 e3 d7 g3 b6 e4 b7 e2 b8B e1B Qf3 h4 Ba3 h3 Qg4 h2 Bc7 e3 Nh3 g1Q Bad6 g2 Bd3 e2 Bb8 Bh6 Bc5 Ra5 Bbd6 Qe3 Be4 g1Q Bd5 Rh7 Qf3 Ne7 Na3 Bg5 Kb1 Bb7 Qf2 Ba8 Bb7 Nc6 Ba6 c2+ Kb2 Rg7 Rc1 c3+ Ka1 Na7 Nc4 Qe6 Qe3 Bg3 Ba3 e1B Qb6 Rc5 Ne5 Qb3 Bb2 Qf1 Ng1 Qfc4 Ne2 Qdg8 d8B+ Re7 B8c7 Rd7 g7 Bd2 Rhg1 h1Q Ng6 Qh4 Rgf1 Bde1 Rf3 Bd2 Re3 Bde1 Rb1 c1Q Ba3 Qcc2 Rc1 Q2e4 Bb2 Qc6 Ba3 c2 Bb2+ Re5 Bda3 Bc3 Bcd6 Rf5 Bdb4 Rc5 Rb1 c1R Ba5 Be5 Be1 Rc2 Rc3 Bd6 Bc1 Rd5 Re3 Bb4 Rb2 Rc5 Rb1 Qbd3 Rb3 Qdd5 Rbc3 Qb3 Ng1 Qdc4 Ne2 Qb2+
1b6/B1N1Kp2/b3NbRn/3r3q/1PQ1BP2/b5Bn/1PbkB3/1nqb1R1n w - - 0 1 legal: proof: e4 b5 a4 bxa4 h4 d5 h5 dxe4 h6 gxh6 Be2 h5 Bf1 h4 d4 a5 f4 Ra7 g4 Rb7 g5 Rb3 cxb3 Kd7 Kf2 Ke6 Ke3 Kf5 d5 c5 d6 h5 d7 e5 g6 c4 g7 a3 Qf3 a2 Rh2 h3 Qg3 h4 Rc2 h2 Re2 h1B Qf3 h3 Rg2 h2 Nh3 a4 Rd2 a3 Rf2 c3 Qg2 c2 Qg3 Bf3 Rd2 h1B Qg2 Nh6 g8B Bd1 Be2 Qh4 d8B Nd7 Qf2 Nc5 Ng1 Bd6 Bf3 Qh5 Bf6 Ba6 Be7 Nd3 Bg2 Bb8 Qe1 Nf2 Qe2 Nh3 Qf2 Kg4 Bh7 Rd8 Nf3 Rd5 Bf1 Bg2 Be2 Bf1 Bb5 Bd3 Qf1 Kg3 Rf2 Kg4 Bd2 c1N Ne1 Ne2 Beb4 B3c2 Rf3 Ng3 Bc5 Nh1 Rf2 Kg3 Nc3 Kg4 Rc1 a1N Rb1 a2 Nd3 Kg3 Ba7 Kg4 Be1 Kg3 Kd2 e3+ Kc1 e4 Nc5 e2 Ne6 e3 Be4 Kg4 Bc4 Kg3 Nb5 Kg4 Nbc7 Kg3 Bb4 e1B Be2 Bc3 Ba5 Bf6 Be1 Rd7 Rf3+ Kg4 Bg3 Rd5 B2d3 e2 Kd2 e1B+ Ke3 Bec3 Be2 Bb4 Rc1 Ba3 b4 Nb3 Rb1 a1Q Rc1 Bcd3 Rc6 Nd2 Rb6 Re5 Kd4 Qc1 Rc6 Nb1 Rb6 Bb3 Rc6 Bdc2 Rb6 Bd5 Kc5 Bdb3+ Kd6 Rc5 Qf2 Bd1 Qd4 Bbc2 Qc4 Bc3 Bb7 Rd5+ Ke7 Kf5 Nd4+ Ke4 Rf1 Ke3 Rg6 Kd2 Nde6 Rd8 Bbf3 Rd5 Be4 Bf6+
k1b1r2q/bn1q3r/4n3/1PP3qN/R1Bpp2P/K1r3Nb/3n2RB/2Q2NN1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 a5 f4 d5 h4 Kd7 b4 Kc7 c4 Kb7 Kc2 g5 Kb2 e5 b6 g3 f5 g2 f6 g4 b5 g3 f7 e3 Bd3 e2 Bf5 e1N Bh3 e4 Ra3 d3 Qa4 d2 Kb3 d1B+ Kb2 Nd7 Qb3 a4 Qc2 Bg4 Re3 a3+ Kb3 a2 Re2 a1Q Qb2 Nh6 Nd2 Rh7 Nf1 Nf5 Bf4 Nd6 Qc1 Nf3 c5 Nd2+ Kb4 Qh8 Be5 Be7 f8N d4 Ne6 Nf8 Nf4 Qd7 Nh5 Bd8 Bf4 Kb8 b7 Ne6 Rf2 Ka7 b8N Bb6 Ka3 Bf5 Bg4 Nb7 Be2 Bg4 Bc4 Bh3 Ne2 g1Q Rg2 Qf2 Be5 Qf5 Ng1 Qg5 Rhh2 Nb3 Ra2 g2 Nhg3 Nd2 Bd6 Qde8 Nd7 Rb8 Bd5 Ka8 Nf6 Ba7 Nfh5 Qc6 Bc4 Qd7 N1e2 g1R Rg2 Rh1 Ng1 Bf5 Kb2 Rh3 Ra4 Bg4 N3e2 Bf5 Bh2 Rc3 Neg3 Bh3 Qa1 Qdd5 Ra6 Bd7 Qc1 Re8 Ra4 Bc8 Ka2 Qd7 Kb2 Nb3 Ka3 Nd2+
1R3N1B/1Kn1Bbqp/1n6/qP6/P2bb1r1/1r1qpPr1/3BB1k1/Q1N1Rn2 w - - 0 1 illegal: No proof kernel
1b3K2/1qp2B1k/1rRNBR2/1q1n2n1/b1nq4/bP2p3/BB3PP1/rr2N1Q1 w - - 0 1 illegal: No proof kernel
1R1B4/2p1RK1n/P1k5/r1nNbRrP/R3B1n1/p2Q2Pq/b3r3/2r2rbN w - - 0 1 illegal: No proof kernel
1B2NNnB/r1p2Rnr/P2r1P2/1p2bQ2/1KbNr3/1P4b1/4n3/2rRqN1k w - - 0 1 illegal: No extended proof kernel
rqR1K3/3NBbr1/3Nr2b/2Q5/Bn1Rrn1p/1P1N1qPq/5pP1/2Nr2k1 w - - 0 1 legal: proof: f4 b5 d4 e5 a4 bxa4 d5 exf4 d6 g5 Qd2 g4 Qd4 g3 hxg3 cxd6 Qd3 d5 Qd1 d4 Kd2 Ke7 Kd3 Kf6 Ke4 h5 Kd5 Kf5 c4 a5 c5 a3 b3 h4 e3 a2 c6 a4 c7 d3 Nf3 d2 Rh2 a3 Bb2 Rh6 Bb5 Ne7+ Kc5 Ke4 Qe1 d1R Qh1 f5 Be5 d5 Bf1 d4 Bb5 d3 Bd4 d2 Bc6+ Nd5+ Kb5 Re1 Bg7 d1R Qg1 Na6 Rh1 Be6 c8N Nb4 Bf6 Bg8 Ne5 f3 Nb6 f4 Nbd7 f2 Be7 f1Q+ Nd3 f3 Qf2 Re6 Nc3+ Kf5 Rb1 a1Q Ne2 Ke4 Rc1 a2 Rc5 Qg7 Nec1 a1R Rc2 R1a4 Kc5 Ra1 Ba4 Qg4 Kb5 Qe8 Rc8 Nf4 Qc2 Bh6 Qc5 Qh3 Rg1 Nc6 Kb6 Qe2 Kc7 Nb4 Rh1 f2 Rf1 Qf3 Rh1 Qeh5 Kd8 Qe5 Ke8 Qb8 Nb2 Rd5 Nbd3 Rg5 Rf1 Re2 Rd1 Rg7 Qc2 Kd5 e4+ Kd4 e5 Re4 Qc7 Ke3 Qc5+ Rd4 Re1+ Kd2 Re4 Rc4 Rd4 Ke3 Na2 Ke2 Nac1+ Kf1 Bc6 Rd6 e6 Kg1 Ba4 Rb6 Bg5 Rb1 e7 Rd6 Kf8 Rdg6 e8N Re6 Nd6 Ra1 Be7 Rb1 Rd5 Rce4 Rd4 Ra1 Ke8 Rb1 Na2 Rd1 Nac1 Bf7+
B1r2K1b/B5rN/N1q2Q2/4Nqqp/3Rq1N1/nPR2P2/4pbrP/k2n1q2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bb2 b4 Bc1 b3 Ne2 b5 Ba3 b2 Nc1 b4 Ne2 b3 Ng1 Ba6 Bd6 Bb7 Na3 b1R Be5 Bd5 Bb2 Bc4 Bc1 b2 Nf3 Ra7 Ng1 Bb3 cxb3 Ra8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 Kd4 d3 Kc3 d4 e5+ Kh5 g5 f3 c5 d5 c4 d6 g3 d7 g4 Bh3 e3 Qd5 g2 Qb5 g3 Qa6 e4 Qa7 e2 Qa4 e1Q Bg5 e3 Bh4 Nf6+ Kg5 h5 Kg6 Rc1 Kf7 b1Q Be6 Kb2 Bg5 c3 Qb4 c2 Qb6 Bg7 Nh3 g1B Bd5 g2 Nf2 Na6 Ng4 Ne4 Qf6+ Nc3 Bh6 e2 Be3 Qf1 Ba7 Qa5 d8N Nb4 Ne6 Rhg8 Nf8 Bf2 Nh7 g1Q Ke7 Rad8 Ba8 Qf5 Kf7 Rd4 Ke7 Nd1 Nc4+ Kc3 a4 Bh8 a5 Rg7+ Kf8 Qgg2 Nd2 Kb2 a6 Qg3 Ra4 Qd6+ Ke8 Qc6+ Kf8 Qfe4 Ra5 Qf5 Rc5 Ka1 Rc3 Rdd7 Nc4 Rc7 Nh6 Rg2 Ne5 Rcg7 Rg1 Nd5 Nhg4 N5e3 Rh1 Nc4 Rg1 Na3 Rh1 Qe1 Rf1 Qd2 Re1 Qdg5 Rh1 Nb2 Rd1 Qfe4 Rd7 Nd1 Rd4 Ne3 Rc5 Qb6 Bd5 Qd3 Bb8 Qdf5 a7 Qb5 a8N Qbd3 Nh6 Qd1 Be4 Qf1 Ba7 Nd1 Nc7 Qb2 Rd2 Qd4 Ba8 Qde4 Rd3 Rb1 Rcd5 c1Q Na6 Qcc4 Nhg4 Rc1 Rd8 Qb5 R8d7 Rc7 R7d4 Qbc6 Rc3 Rc8+
Nb4b1/3qrR2/1Bn1brqp/b2P1N1Q/2Kp1r2/k1P4b/n1P1B3/1R2R2R w - - 0 1 illegal: No proof kernel
n1Nb3q/1Br1Bq1p/Q4b2/3Rp1k1/1R1PP3/1rnNn2P/3N3K/2b1nn1N w - - 0 1 legal: proof: c4 a5 g4 d5 b4 dxc4 a4 b5 Ra2 f5 Bh3 fxg4 Ra1 Bd7 Bf1 axb4 Bh3 b3 Bg2 b4 Bf1 Bb5 axb5 Ra4 Bb2 Ra5 Bc1 Ra8 d4 Kf7 f4 Kg6 Kf2 e5 Kg2 c5 e4 g3 b6 b2 b7 c3 h3 c2 Bd3 b3 Ra4 c4 Rb4 c3 Ra4 Ra7 Bb5 Ne7 Bd3 Nd5 Be3 c1B Rb4 c2 Qe2 Be7 Bf2 Na6 b8N Bf6 f5+ Kg5 Rb5 Nac7 Rb7 Na8 Rh2 Ne3+ Kf3 g2 Rb4 Rc7 Nd2 b1Q Kg3 b2 Nd7 Qa2 Ba6 b1N Bb7 Nc3 Qa6 Qf7 Ne2 g1N Nc5 Nf3 Nd3 Ne1 Rh1 Ba3 Kh2 c1B Ng3 g6 Rb5 Bae7 Rd5 Qb8 Rf1 Bd8 Nh1 Re8 Bg3 Re6 Rf3 Rb6 Rf2 Rb3 Bh4+ Kh5 Rg2 g5 Re2 g4 Bg5 Bh8 Be7 Qc8 f6 g3+ Kg1 g2 Kh2 g1N Rf2 Qg6 f7 Bf6 f8N Qf7 Nd7 Nge2 Nb6 Ng3 Re2 Qb8 Nc8 Kg5 Nb1 Qa7 Rb2 Qc5 Nd2 Qc6 Bf8 Qce8 Be7 Qh8 Rb1 Ra3 Rbb5 Rb3 Rb4 Ngf1+
1r3bb1/2qN2p1/3n2KN/2rqbRPR/2p2bPN/5BB1/q1Pknb2/3N3Q w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 f5 h3 a5 Qf3 axb4 Qb3 Qd5 h4 f4 Qe3 Qg5 hxg5 fxe3 Ke2 Kd7 f4 Kc6 d4 Kb5 a4+ Kc4 a5 c5 a6 h5 f5 b5 d5 e5 f6 h4 f7 b3 a7 b4 d6 b2 d7 b3 d8N h3 Na3+ Kc3 Nc6 b1Q Bg2 c4 Nf3 h2 Nh4 b2 Nf5 Nh6 Na5 Be6 Nb3 Nc6 Bf1 Rc8 a8Q Nd4+ Ke1 e2 Kf2 e1B+ Ke3 Bg3 Ne7 Qa2 Bh3 b1Q Qb7 Ne2 Nc5 Qb6 Nf5 Qc7 Nd7 Rg8 Rf1 h1Q Bg2 Rb8 Bf3 Bf4+ Kf2 Rh8 Bb2+ Kd2 Nb5 Rc8 Nc3 Bd5 Nd1 Rb8 Ne7 Nf5 Ng8 Nd6 Nh6 Be6 Qa8 Bd5 Bd4 Rb5 Ba7 Rc5 Bb8 Be6 Bg2 e3+ Kf3 Nc1 Qb7 e2 Qe4 e1B Qh7 Be7 f8N Ne2 Ng6 Bf2 Nh4 Bg8 Rb1 Bf8 Rc1 Nb7 Ke4 Bd4 Kf5 e4+ Kg6 e3 Ra1 Nd6 Bf3 Bde5 Rb1 Nd4 Rb5 e2 Re1 Qg2 Rh1 e1B Rh3 Ne2 Ra5 Bf2 Rb5 Bb2 Ra5 Rc6 Rf5 Bbe5 Be4 Nf7+ Kh5 Ba3 Nf6 Bed4 Qg6 Qd6 Rc5 B4g3 Nf5 Bh7 Nd7 Bc3 Bc7 Rb8 Rh1 Qe5 Qd6+ Bcd4 Qd5 Bg8 Ra5 Bd6 Kg6 Bf8+ Bd6 Qf3 Rh5 Bh2 Nh4 Rcc8 Ra3 Rc5 Re3 Qg2 Rf3 Qgg3 Rf5 Qd3 Be7 Qc7 Bd6 Bde3 Bf4 Nd6 Bh1 Qd4 Qf3 Qd3 Qh3 Qd5 Bf3 Bhg1 Bh2 Bd4 Qg2 Be5 Qh1 Be3 Bf4 Bf2 Bg3 B3f4
1RQ1RBK1/1b3P1R/1PbRn3/N2br1b1/2p2Nq1/n3rP2/pkqn4/3B1b2 w - - 0 1 illegal: No proof kernel
2KB1nb1/5Ppn/k1p2qr1/3Q4/1RP2P2/1nN3NB/1B2bnr1/n2R1qBq w - - 0 1 illegal: No proof kernel
2n2r2/4NpkP/Pn1B1nq1/3p1B1n/n3BKb1/R1P2N1Q/b1q2r1b/B4R2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 g5 Kf3 b5 e4 d5 h4 b3 a4 b2 h6 g4+ Kf2 g3+ Kf3 g2 h7 d3 a5 b4 e5 d2 h5 b3 a6 Ne7 e6 Nd7 h6 Nb6 Bd3 Qc7 Ne2 g1Q Ra2 Qg6 Qe1 d1N Qa5 Nf2 Rg1 Ng4 Qd2 Nf6 Ra3 Bd7 Qb4 Nec8 Ng3 Bd6 Nf5 Kf8 Nd2 b1B Ne7 b2 Be4 Ba2 Qc3 b1N Rf1 Qc5 Qd3 Nc3 Qe3 Rg8 h8B Nca4 h7 Qc3 Bb2 Qd3 c3 Qc2 Ba1 Rb8 Kf2 f3 Qh6+ Rg7 Ke3 f2 Qh3 Bh2 Kf3 Bb5 Ke3 Be2 Nf3 Ra8 Nd4 Bg4 Nf3 Bg1 Kf4 Rg8 Rc1 f1N Rd1 Ng3 Rf1 Bh2 Bg7+ Ke8 Bf8 Rb8 Nf5 Rh8 Bd6 Rb7 Ne7 Kf8 Nc6+ Kg7 e7 Rb8 e8B Rf8 Bd7 Rb7 Bdf5 Re7 Bd3 Re2 Bde4 Rf2 Ne7 Ngh5+
2r1nRRN/2qqP3/2Q1b1b1/1Pp3k1/P4qN1/1N1rp2q/n1B1K2q/B3b2N w - - 0 1 illegal: No proof kernel
r4n2/2n1PP2/Bk6/p3P3/1r1n1p1b/r1q2R1B/2q1rNRN/rbK1BBQ1 w - - 0 1 illegal: No possible last move, all moves rejected
3q4/3Pr2R/4pb1n/2rN1Bb1/brP2R2/5PN1/1npqr1Q1/r1k1BNNK w - - 0 1 illegal: No proof kernel
3N3K/1nP1bb2/R2p2kr/Rb6/2q1Nb2/NB1rP3/1NnP1p2/1qBQb2r w - - 0 1 illegal: No possible last move, all moves rejected
1qB2N2/qNP2N2/P2Np1K1/1Bn1rp1r/1R1q3b/k3P3/n4r1Q/Rq1bq3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 g5 fxg5 h6 g6 Qa5 g7 Qd8 g4 Qb6 g5 Qc7 g6 Qd8 Bg5 hxg5 Kd2 d5 Kd3 Kd7 c4 Kc6 h4 Kc5 a4 b5 h5 g4 h6 g3 a5 b3 a6 Kb4 h7 b2 c5 g2 c6 Nf6 g8B Ne4 g7 Nd7 c7 Ndc5+ Kc2 Nc3 Kd2 d3 Ke3 d2 Kf4 d4 Kg5 d3 Kh6 Na2 Nh3 g1Q Na3 b1R Qe1 Bg4 Rh2 f5 Be6 Qb8 Bc8 Rb2 Qh4 d1Q Kg6 d2 g8N Qe1 Nf4 d1Q Nf6 Qdd4 Ne8 e6 Rh1 Be7 Qh2 Bh4 Nd6 Kb3 Nb7 b4 Nb5 Rd8 h8N Rd5 N5d6 Re5 Rd1 Ka3 Nhf7 b3 Ra1 Rd2 Rb1 b2 Ra1 b1Q e3 Rf2 Bd3 Qb6 Bb5 Q6a7 Rb1 Qgf1 Rb4 Qb1 Rg1 Qe2 Rc1 Qe1 Rd1 Qbd3 Ra1 Bd1 Nd5 Qb1 Nf6 Qb6 Nh7 Q8a7 Bcd7 Rh8 Nf8 Rh5 Bc8 Qb8 Qg3 Q6a7 Qg2 Qc4 Qh2 Qd4
5B1n/rP1q1b1k/1R1P2nB/N1b4B/b2nN1pn/B2R2QK/P1rq1p1n/8 w - - 0 1 illegal: No possible last move, all moves rejected
3q2Br/p2b4/2pQ2b1/P1n4k/nq1R1Rn1/RNbnR3/n2PN1rP/1K5B w - - 0 1 legal: proof: e4 b5 c4 bxc4 f4 g5 fxg5 d5 Nh3 dxe4 Ng1 h6 g4 Bg7 b3 Qd5 g6 Bd4 g5 Rh7 Bb2 Bg7 Bf6 Bf8 g7 Rh8 g6 Qd8 Bg5 hxg5 a4 f5 a5 e5 b4 g4 b5 c3 b6 e3 b7 c6 Qb3 g3 Kd1 e4 Kc1 f4 Qd1 c2 Bd3 e2 Nf3 e1Q Ng1 f3 Ra3 g2 Bf1 e3 Rd3 f2 Nh3 g1N Rc3 e2 Ng5 Na6 b8R Nh6 g8B Ng4 g7 Bd7 Rc8 Nc5 Bg2 f1B Nf3 Qh4 Nd4 e1N Qf3 Bd3 Nb3 Bg6 Qd3 Ne2+ Kb2 c1N Qd6 Na2 Rf1 Qe7 Re3 Nec3 Rf4 Ned3+ Kc2 Rb8 Bh1 N3a4 Nc3 Qe4 Ne2 Rb7 Ref3 Qb4 Kb1 Be7 Rh3 Bf6 Ra8 Bc3 Re3+ Be6 Rc8 Rf7 Rd4 Rf2 Rc7 Rg2 Rf7 Qe7 Rff4 Bd7 Be6 Qf6 g8R+ Qf8 Rg7 Qf6 Re7+ Kf8 Re8+ Kg7 Bg8 Kh6 Rh3+ Qh4 Ree3 Kh5 Reg3 Bb2 Na1 Ne1+ Rgd3 Kg5 Re3 Kh5 Nc3 Qd8 Ne2 Bf7 Rc3 Ned3 Ra3 Bg6 Nb3 Bc3
3B1q1b/1KNr1n1R/R1n2P1P/1q1B2n1/1B3p2/1P1b1qpN/Q1rn4/1rk3B1 w - - 0 1 illegal: No proof kernel
b1r1B2r/6bb/N2R1pPn/2np2R1/1P1r4/1NB1R1Q1/2qP1n2/R1qk1b1K w - - 0 1 legal: proof: b3 b5 a3 b4 axb4 c5 Ra4 c4 Ra2 Ba6 Ra1 Bc8 f4 cxb3 h4 g5 f5 gxh4 f6 exf6 Ra5 f5 Ra1 f4 Kf2 Ke7 c4 Ke6 e4 Ke5 g4 Kd4 Kg2 h5 e5 d5 c5 a5 c6 h3+ Kh2 f3 c7 h4 g5 f2 e6 b2 e7 f6 e8R a4 Bd3 f1B Bc4 a3 Re6 a2 Qe1 Nh6 Qe2 Na6 Bb3 Bb7 c8R Bg7 Qe5+ Kd3 Ne2 Nc5 Rd6 Qc7 Re8 Rc8 Rg1 Ba8 Kh1 h2 Nbc3 b1B Na4 Qc6 Bc4+ Kc2 Bb2 Kd1 Nc1 Bh7 g6 Qc7 Bc3 Qc6 Rb1 a1Q Bb5 Qa2 Qg3 Qc2 Re5 Qc7 Be8 Qc6 Nb3+ Qc1 Nb6 Qa4 Na5 Qc2 Ra1 Qf5 Qg4+ Kc2 Nd7 Rd8 Nb3 Rc8 Re3 Qe4+ Qg2 Kd1 Nb8 Qeb1 Qh3 Qbc2 Rgg3 Be2 Kg2 h1N Qg4 Nf2 Ref3 h3+ Kg1 Bc4 Na6 h2+ Kg2 h1R Re3+ Be2 Qf4 Rh5 Rg5 Rh4 Qg3 Rd4 Kh2 Bf1 Kg1 Nfg4 Kh1 Nf2+
2n1N3/rb1K1B2/2R1PB1r/3P1RN1/kbbr1nn1/1p2Nqp1/P2N3Q/2r4q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 f5 e4 b5 d4 c5 d6 Kc6 e5 g5 e6 g3+ Kf3 c4 d7 g4+ Ke2 f3+ Ke3 f2 Kf4 g2 Ke5 b3 h5 b4 h6 Kb5 h7 g3 d5 f4 Qd3 f3 Nd2 b2 Nb1 b3 Rh2 Ra7 Nd2 b1R Rh5 Bb4 Nh3 g1N Be2 f1B Nf4 f2 Ng2 Qh4 d8N Ne7 Bb2 Ka4 Nf7 c3 Nd6 c2 Ne8 c1R Qc2 Qh1 Ne3 Bb7 Rf5 Nh3 Bh5 Bc4 Bf7 f1Q Bd4 Nf4 Qb2 Rg8 h8N Rg6 Qc2 Rh6 Bc3 Ba5 Kd6 Nd7 Bf6 Ne5 Qb2 Ng4 Kd7 Nc8 Qc2 Rb2 Rb1 Rd1 Rc1 Rb1 Qb2 Bb4 Rc2 Bca6 Rc6 Bc4 Nf3 Qh4 Bg8 Be1 Nf7 Rbc1 N7g5 Rd4 Bf7 Qhh1 Qh2 Bb4 Nd2 Qff3
1b5q/5q1B/Bn1p2nP/Kq1N1P2/1RN2b1k/1N1P1rr1/bp4QN/2b1n1R1 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 a4 h5 Ba3 hxg4 axb5 fxe4 b6 Bb7 b5 Bc8 Bb4 cxb4 h4 Kf7 c4 Kg6 f4 Kh5 c5 e5 c6 g5 c7 a5 d3 e3 f5 e4 b7 b3 b6 d6 Qd2 b2 Ra4 g3 Nf3 g4 Rb4 e2 Rh3 g2 Qc1 g1B Kd2 e1B+ Kc2 e3 Kb3 g3 Ka4 g2 Kb5 a4 Qc2 a3 Rd4 a2 Rc4 a1Q Na3 e2 Rh1 Nd7 b8N Ne7 b7 Ba7 Rg1 Bd2 Nc6 e1N b8N Nb6 Rb4 Bf4 Ka5 B8h6 Be2 Be6 c8B Ng6 Na6 Qa2 Ncd4 Bb8 Nb3 Ra7 Bd1 Rg7 Nc7 Bc1 Qc6 Bhf4 Ba6 Rhh7 Bc2 Qh8 Nd5 Kg4 h5 Rg8 Ne5+ Kh4 Ng4 Re7 h6 Bf7 Nc3 Re3 Nh2 Rf3 Nd5 Rg7 Nd2 Qc4 Nb3 Bg8 Qb7 Qc7 Nc4 Qf7 Rh1 g1Q Qc6 Qg2 Rg1 Qe2 Qa8 Qe5 Bd1 Rh3 Bh5 Rf3 Qc6 Nf8 Qb7 Rgg3 Bg6 Qee8 Bh7 Ng6 Qa8 Qef8 Nc3 Q8e8 Ne5 Qff6 Nc5 Rf2 Qg2 Ba2 Nc4 Rff3 Nd5 Qff7 Nb3 Qb5+
2R2r1b/3bk2K/BP5B/1bRQP2N/1Pr1q3/nprN1p2/1R4R1/nb1nq3 w - - 0 1 illegal: No proof kernel
qR1nB1r1/2b2QpB/q1Nb1NqP/R2KB1q1/r1p5/rbn1P3/P3k3/6B1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Kd7 Ke3 Kc6 Ke4 Kb5 h4 c5 d4 f5+ Kf4 b3 h5 b2 e6 c3 Ke5 Kc4 d5 b5 h6 f4 d6 f3 e7 f2 e8B g3 d7 g2 Bg6 c2 Rh5 b4 Bd2 c1B Qe1 b3 Nf3 g1Q Rh2 Bd6+ Ke6 Nc6 Bg5 Ra4 Rh1 Nf6 Rh5 Nd5 Nc3 b1Q Be8 b2 Bf6 Rg8 Be5 Bf4 Ne4 Qgg5 Nf6 Qbg6 Nd4 Nc3 Rb1 Ra3 Bh3 f1Q Qf2 Ba6 e3 Qa8 d8B Kd3 Bc7 Bh2 Qf3 Bc4+ Qd5 Kd2 Bf5 Bb3 Bc2 Qfa6 Be4 Ne7 Nc6+ Ke2 Bb8 c4 Bc7 Bg1 Bh2 Bf2 Bg1 Bfg3 Bb8 Bc7 Qf5 Bgd6 Qf4 Qg2 Ra5 Q6g5 Bh7 Ra4 Rd1 b1R Qf5 Rb2 Rb1 Rd2 Qg6 Rd3 Qf7 Qg6 Ba7 Q2g5 Bd4 Bd1 Rb8 Bb3 Nb4 Nc6 Be5 Nb1 Rb7 Rc3 Kd5 Nd8 Nc6 Bc2 Rab5 Rca3 Rb8 Bb3 Ra5 Nc3+
2R1q1r1/k2N1Pr1/2p1N1b1/1B1P1N2/KR1b1N1q/b7/1npP1r2/Qbn1B1q1 w - - 0 1 illegal: No proof kernel
n5b1/1k3pbR/1rq2qN1/2rP1Q2/2Nr4/PP1KnB1n/4pRbB/4RRb1 w - - 0 1 illegal: No proof kernel
3qkb2/2QN1pR1/nN2p3/P1bPnRRr/1Pqr3q/8/1R4Kq/1rBb1B2 w - - 0 1 illegal: No proof kernel
q1R2r2/2R1P1rK/Q3bP2/2P5/qb1BBn2/1N1Rpq2/Rr3p2/N1r1knb1 w - - 0 1 illegal: No proof kernel
2krn1r1/4PQ2/2rpn1N1/qp1PBb1q/2q1R1NB/1n3N2/1Pb1K3/1nRN4 w - - 0 1 legal: proof: d4 e5 h4 b5 f4 exf4 a3 g5 e3 gxh4 Bd3 c5 a4 c4 a5 cxd3 Qh5 Bc5 Qd1 Bb6 axb6 Ba6 Qg4 Bb7 Qd1 Bc8 c4 f5 g4 a5 d5 h5 g5 h3 g6 d6 b7 Kd7 g7 h2 c5 f3 e4 f4 e5 d2+ Kf1 a4 Qc2 d1B Qg2 h4 Qc2 a3 Qe2 h3 Qd3 f2 Qe4 a2 Qe1 Bc2 Nc3 Qa5 Ke2 f1N Nf3 Nd2 Qf1 Na6 b8B Nf6 g8N Nb1 Bc7 Ne8 Bd8 Nac7 Bh4 Ne6 Nh6 Rg8 c6+ Kc7 Rg1 h1R Ng4 h2 Nd1 Bd7 Be3 Rd8 Bd4 Kc8 Rg3 Rg1 c7 h1Q Bc3 Na3 Rc1 a1N Rg2 Nb3 Rh2 Nb1 Qf2 Kb7 c8N Kb8 Ne7 Kc7 Ng6 Kc8 Nd2 Rg3 Bd4 Rc3 Nf3 Rc6 Rh3 Nf8 Rg3 Bdf5 e6 Qh3 e7 Ne6 Be5 Qh1 Nd2 Qh2 Re3 f3+ Ke1 Qh3 Re4 Qh2 Qf1 f2+ Ke2 Qh1 Nf3 Qh3 Qe1 Qh1 Qd2 Qh2 Qg5 Qh3 Qf6 f1Q+ Ke3 Qc4 Qf7 Qca4 Ke2 Qa2 Bf2 Qh5 Be1 Q2a4 Bh4 Qc4+
nb1r2N1/N3pq2/Bn1BR3/2QP4/Pn2Rr1k/1N1rq2p/2PN2bK/3bb3 w - - 0 1 illegal: No proof kernel
B2n1k2/3rp3/qr1q1Npb/2r1q3/n2B1bR1/1P5R/NP2P2q/1RR2bKQ w - - 0 1 illegal: No possible last move
b5R1/1q2p1Kb/1NRPn3/bk1NB3/2p1Pr1R/4n2B/r1P1nbQq/q1R5 w - - 0 1 legal: proof: g4 d5 h4 b5 a4 d4 axb5 f6 g5 fxg5 e4 gxh4 Qe2 h3 Qe3 dxe3 Ke2 Kd7 Kf3 c5 Kg4 g5 Kf5 a5 f4 h5 Kg6 a4 d4 h2 b4 h4 b6 Kc6 f5 a3 f6 h3 f7 e2 b7 e1B Bd2 a2 Bd3 c4 d5+ Kb5 d6 g4 Be3 g3 Nf3 g2 Bf4 g1N Be5 Qb6 Bf1 Bf2 Bf4 Nd7 b8R Nh6 Rb7 Nc5 Bd3 Nf5 Rc7 Ne2 Be5 Qb7 Rc6 Bg7 f8R Rh4 Rg8 Ne3 Rc1 h1Q Kf7 Nd4 Bf1 h2 Bh3 Rf4+ Kg6 Bf6 Kh7 Bg5 Kg7 Qg2 Rh1 Ne2 Rc1 Bf5 Rh1 Bh7 Rc1 Ka4 b5 h1B b6 Qh2 Nc3+ Kb4 Nd5+ Kb5 Nd2 Bf3 Nb1 Bg4 Nbc3+ Ka6 Na4 Kb5 Rh1 Bc8 Rag1 a1Q Rc1 Qb8 b7 Ne6+ Kh8 Qc7 b8Q+ Qb7 Nab6 Ra2 Qa8 Bd7 Qf8 Bgh4 Qg7 Be1 Qg2 Bhf2 Rc7 Bc6 Rcc8 N6d4 Kg7 Ba5 Rc7 Qa6 Rcc8 Ba8 Rc6 Qb7 Bc8 Qg1 Rh4 Qh2 Bh3 Ne6+
4N2q/R3p1bP/6B1/1r1qrp1P/1RbRnqkr/q1nK2BN/1b1PR1Q1/8 w - - 0 1 illegal: No proof kernel
Q1q1n1k1/3P3b/Nq4nn/1pPrr1b1/1B2B1NR/B2p1bR1/B1qbP3/6K1 w - - 0 1 illegal: No proof kernel
7b/3PK1P1/k6r/1R1q2n1/rR3QNP/RpqN1npb/b7/qq2BBRr w - - 0 1 illegal: No proof kernel
1k3r2/b2p3b/1q5B/NN1Pqr1b/P2R1RPp/2q1Q3/2R1b1K1/nn2Br1R w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 b5 a4 b6 cxb6 Bc4 b5 Be6 b4 Bb3 axb3 Kf1 e5 d4 b5 a4 h5 g4 h3 f4 h4 c4 h2 c5 e4 d5 b2 f6 b3 c6 b4 c7 e3 f5 e2+ Kf2 e1Q+ Kf3 Qc3+ Qd3 Qe7 Ra2 Na6 Be3 Rh5 Qb5 Qee5 Qe2 Bc5 Kg2 Ba7 Qf1 Nc5 Bc1 Ba6 Na3 b1Q Qd1 b2 Qc2 b3 Bh6 Be2 f7+ Ke7 f8R Kd6 c8R Nf6 Bc1 Nfe4 f6 Rf5 f7 Nd2 Qe4 Rb8 Rce8 Kc7 Nc4 Rc8 Na5 Kb8 Nf3 Rd8 Rd1 h1R Nd4 Rhf1 Nb5 Rc8 Qe3 Rd8 Rh8 Rc8 Re7 Rf8 Re6 Na6 Rc6 Nb4 Rc4 Nc2 Rd4 Na1 Rh6 Qbd3 Rg6 b1B Rc2 b2 Rf6 Qc5 Re1 Qb6 Rd1 Qc3 Re1 Nc4 Bd2 Na3 Rd1 Nc4 Be1 Na3 Rcd2 Bbd3 Rc2 b1B Rdc1 Rg5 Rff4 Bg6 Rcd1 Bh5 Rdc1 Rf5 Rcd1 Rg8 f8B Rh8 Bh6 Rhf8 Rcc1 Bbd3 Rc2 Nb1 Bd2 Rf3 Rh1 Rf1 Be1 R5f6 Rb4 Bh7 Rbd4 Rf5
2N2Bqq/1RpB1k1N/RP1nr2r/3P2b1/7n/qr1Q1P2/1p2r3/NnN1Kb2 w - - 0 1 illegal: No possible last move, all moves rejected
K4n1b/1Pnrp2R/2RR4/1R2Nq1P/P1b5/1B2Bqk1/3r3p/qNr1bq1Q w - - 0 1 illegal: No proof kernel
B1q1qrRb/bp1Q1bN1/1q1r1n1N/4P1b1/1krR2K1/R2Rp3/1P4P1/B3n3 w - - 0 1 illegal: Other
6n1/1p1R1rRQ/3r2rB/kPRKP3/1bnR2b1/qq2NpB1/q2P3n/2q4N w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 g5 h4 gxh4 e3 d5 cxd5 a5 Bc4 a4 Bb3 axb3 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 a4 Kc7 g4 Kb6 g5 h3 d6 h2 b5 b2 g6 f3 d7 c4 e4 h4 g7 f2 Nc3 b1Q Qf3 f1N Qd3 h3 Nd1 f4 Ne2 f3 Ng3 c3 Ba3 c2 Ne3 c1Q Kd5 Ra6 e5 Rh6 Qh7 Nc6 Ra2 Qe8 Rc2 Qe7 Rc5 Ka5 d8B+ Rb6 Rg1 Rg6 Nh1 Bf5 Rg4 Qa2+ Rcc4 Bd7 Rd4 Bg4 Bd6 Qcc2 Ba3 Qb4 Bh4 Qcb3 Bg3 Q4c3 Bc5 Ra6 Ba7 Bb4 Bc5 Qba3 Bd6 Qcb3 Bf8 Nh6 g8R Rb6 Rg7 Ng8 Nf2 h1R Rd7 h2 Bh6 Rg1 Rg7 h1Q Rd7 Qh3 Nh1 Nh2 Rg7 Ra6 Rd7 Qf1 Rg7 Kb6 Rd7 Qfc1 a5+ Ka7 Rg7 Rb6 a6 Na5 Rd7 Rbe6 Rg7 Kb6 a7 Rc6 a8R Rcd6+ Ke4 Rgf6 Rc5 Nc4 Rd8 Ka5 Rdd7 Rf7 Be1 Bh3 Bh4 Rgg6 Bg3 Rc6 Kd5 Bg4 Nf2 Ra6 Nh1 Rad6+
3q1b1n/1pBb4/2R2qPp/1P3brr/nkq1r3/N1R1q1NN/P2Q4/3NBK2 w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 g5 h4 gxh4 e3 d5 cxd5 a5 Bc4 a4 Bb3 axb3 g4 Kd7 d4 Kd6 g5 f5 e4 c5 b5 h6 Nh3 f3 Ba3 f4 Bc1 f2+ Ke2 c4 Bd2 c3 Kf1 b2 Be1 c2 Nc3 c1Q Qd2 b1B Nd1 Bd7 Rh2 Ra4 e5+ Ke7 e6 Kd6 e7 Na6 Rg2 Bbf5 Rg3 Nc5 Rc3 Rc4 Rb1 Na4 Rb2 Rh7 Rbc2 Rg7 e8N+ Ke7 Nf6 Kd6 Qe3 Ne7 Qd2 Ng6 Nh5 Nh8 Ng3 Rg8 Qd3 Qe3 Qd2 Kc7 d6+ Kb6 d5 Kc5 Rc1 Kb4 R1c2 Re4 Rc1 Bc8 d7 Rg7 d6 Rg8 Ng1 h3 R1c2 h2 Nh3 Qe8 d8N Bcd7 Nf7 Qd8 Ne5 h1R+ Kg2 Rg7 Nc4 Rg6 Na3 Rg7 Ng1 Rh5 Nh3 f1Q+ Kh2 f3 g6 f2 Rc1 Qfe2 Kg2 Rge7 R1c2 Q2f3+ Kf1 Rg4 Rc1 Rgg5 R1c2 Re4 Rc1 Bde6 d7 Qff4 R1c2 Qfc7 Rc1 Qf6 d8B Bd7 Qe2 Qc8 Bc7 Qcd8 Rc6+ Qd2 R1c3 Qf4 Qd2 Qe3 Kg2 f1Q+ Kh2 Qfd3 Kg2 Qd5 Kf1 Qc4+
1kr1Qb2/3r1NPK/4R1B1/1p6/6rB/qn1b1P2/1p1Pb1Rr/1bn1NbRR w - - 0 1 illegal: No proof kernel
1R2N2r/4prPp/4bQq1/2k3P1/6rB/1nnP1R1b/Nb3K1r/1r1BB1bB w - - 0 1 illegal: No possible last move, all moves rejected
1Kqbb2r/1p5B/R6r/3n1PP1/r1kB1NBB/2p1n2r/4P1rq/2rRN2Q w - - 0 1 illegal: No proof kernel
3R4/r2b4/K1BBk2p/P2b1rBP/2P2pb1/n5B1/3nn1Qr/nRNNqr2 w - - 0 1 illegal: No proof kernel
1Nn2R2/Pb6/1qR2brp/1r1Pp2P/R4QBr/1b1k4/b3r2n/BN1KR1n1 w - - 0 1 legal: proof: e4 d5 c4 dxe4 f4 g5 b4 a6 b5 axb5 fxg5 bxc4 Ke2 c3 Kf2 Qd3 Ke1 Qd8 g4 Kd7 h4 Kc6 d4 Kd5 a4 e5 g6 b5 g5 c5 g7 f5 g6 c2 a5 c4 a6 f4 a7 f3 Qe2 b4 Kd2 c3+ Ke1 e3 Ra4 Ke4 d5 Be7 Qb5 f2+ Ke2 Nh6 g8R Ng4 g7 Bb7 Ra3 b3 Rh2 b2 Ra5 Qb6 Ra6 Nc6 Rf8 Rb8 g8R Bf6 Rf7 Ne7 Na3 b1B Qc6 Nc8 Nf3 Ba2 Bb2 c1R Rgf8 c2 Rh1 Nh2 Bh3 Rg1 Ba1 Rg6 Nd4 c1N+ Kd1 f1B Ra4 Kd3 Bg4 Ne2 Rc7 Ng1 Qc1 Bb3+ Rc2 Ba2 Rc6 e2+ Ke1 Bb3 Qf4 Ba2 Kf2 e1R Nb1 h6 h5 Rhg8 Qf3+ Re3 Qf4 Rh3 Ke1 Rh4 Kd1 R8g7 Be6 Rg2 Bg4 Re2 Ne6 Rg6 Nc7 Bg2 Na6 Be4 Rcc4 Bf5 Rc6 Bd7 Re6 Bb5 Rd6 Bbc4 Rc6 Nh3 Rf1 Ng1 Re1 Bcb3+ Kc1 Qf2 Na3 Ba8 Nb1 Rb5 Nb8 Bb7 Rh8 Rc2+ Kd1 Qb6 Rf8 Re2+
1k6/R2BrNB1/r2n1n1K/bp1p2P1/2r3N1/1P1R1n1n/2P2B1B/2Qqqb1r w - - 0 1 legal: proof: e4 g5 d4 f5 exf5 a5 h4 gxh4 d5 a4 b3 a3 d6 cxd6 Qd3 d5 Qc3 d4 Qb2 axb2 Ke2 d5 Kf3 Kd7 Kf4 Kc7 Kg5 b5 g4 e5+ f6 h5 a4 h3 f4 h2 a5 d3 f5 d2 a6 d1Q a7 e4 Nd2 b1R Ra2 e3 Bg2 e2 Ndf3 e1N Ne5 h4 Bf4 h3 Ngf3 Ne7 f7 Qe8 f6 Nf5 Ra5 Bg7 f8B Nd6 Nf7 Nd7 N3e5 Rh4 Ra3 Bh8 Bg7 Nf3+ Kg6 Ra1 g5 Rh7 Rf1 h1R Ng4 h2 Bh3 Qee1 Ra5 Rb8 a8Q Rb7 Ra2 Rh4 Qa3 Kb8 Qc1 Rc7 Ra7 Ra6 Bg3 Rh7 Bf2 Rc4 Bh6 Bg7 Rg1 Bf8 Rg3 Be7 Bg7 Bd8 Bf8 Rg7+ Kh6 Ba5 Be7 Nh4 Rd3 Nf3 Nh8 Rf7 Bf8 Rg7 f7 Nf6 Be7 Bf5 f8B Bc8 Bd8 Re7 Bg7 Be6 Nf7 Bf5 Rc3 Bd3 Bdb6 Bf1 Rd3 Rg1 Bg3 h1N Bh2 Nf2 Bc5 N2e4 Bf2 Rh1 Re3 Ned2 Rd3 Ng1 Nge5 Ndf3 Bd7 Nh3 Ng4 Ra4 Nd8 Rf4 Nf7 Rc4
R5bn/1rbq4/K1p2qN1/1R1BPqp1/1P2r1k1/1b2P3/1Q1B2qn/B1B1N1b1 w - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 fxe5 h6 Qc2 hxg5 Qd1 g4 h4 Kd7 d4 Ke6 Kd2 Kf5 Kc3 a5 b4 g5 h5 g3 h6 a3 h7 c6 Bb2 g2 Rh6 a2 Rh3 a4 Qb3 a3 Rh2 Kg4 Qc2 f5 Rh1 f4 Qe4 Ra7 Qd5 f3 Rh2 f2 Qa5 Qd7 Bc1 Nf6 Nh3 g1B Bg2 f1B Bd5 Rb7 Nf4 Bd6 Rf2 Bc7 Ng6 Re8 h8B Qf5 Qa6 Be6 Nd2 Bg8 Nf3 Nbd7 Ne1 Nf8 Qb6 Qd7 Rf5 Re7 Kc2 c3 Kb3 c2 Ka4 Re6 Bd2 c1Q Ka5 Qc2 Ka6 Qe4 Qc5 Qg2 Qc2 Re8 Qb2 Re7 Rc1 a1Q Rc5 a2 Rb5 Qd1 Rf3 a1Q+ Ra3 Qab1 Qc3 Rf7 Bc4 Qdc1 Nh4 Rb6+ Ka5 Qd6 Bf4 Qd1 Bc1 Ne6 Qd2 Ne4 Ng6 Qd8 Bg7 Qf2 d5 Rf3 d6 Rf4 d7 Nd6 Bf8 Nf7 Bc5 Qg2 Bd4 Qf6 Ba1 Nd4 Qb2 Nf3 e3 Qdd6 Bd5 Bc4 Ra4 Bb3 d8B Qbf5 Be7 Qdd7 Bc5 Q5e6 Bd4 Nh2 Bc3 Nh8 B3d2 Re4 Ra3 Qef5 Ra2 Bb8 Ra3 Rb7 Ra4 Ra7+ Kb6 Rc7 Ra8 Rb7+ Ka6 Bc7
Rr1B2q1/4b3/p3k1NP/B1q2R1b/3bP1nK/1N1R1QRn/P5rp/2n1b1n1 w - - 0 1 illegal: No proof kernel
6b1/3PqRbk/8/1P1nn3/RQ2Nbq1/2pR2NP/qrp1Rr2/2qbBK1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 f5 d4 Kf7 e4 Kg6 d5 a5 e5 c5 d6 f3 b6 f4 b5 c3 b7 f2+ Ke2 g3 e6 c2 e7 a4 e8R f3+ Kd2 a3 h3 g2 Rh2 c4 Re1 a2 Ba3 c3+ Ke3 Nf6 Bc5 Bg4 d7 Qe7+ Kd3 Kh7 Qc1 g5 Qd1 Nd5 Qe2 Bg7 Qd1 Nc6 b8R Rf8 Qe2 Ne5+ Ke4 Ra3 Nd2 Rb3 Qe3 Rb2 Ne2 g1B Bg2 f1B Bh1 f2 Ng3 Bd1 Re2 g4 Qf4 Rf7 Rg2 Bh2 Rf8 Rf5 Re3 Bc4 Rd3 f1Q Rf7 Bb3 Re2 Rf6 Qe3 Rf2 Qd4 Qe1 Qb4 Bc4 Nh5 Bf4 Ng3 Qf1 Kd4 Bb3 Nde4 Qe1 Rb1 a1Q Bb6 Qa2 Ra1 Qb1 Ra4 Qa2 Nf5 g3 Ba7 g2 Nfg3 g1Q Bb6 Qg2 Bd8 Qf8 Bg5 Bc1 Bd2 Qef1 Be1 Qe7 Rf5 Qf3 Rf7 Qg4 Rf8 Bg5 Rf7 Nf4 Ke3 Bc4 Rf8 Bg8 Rf7 Nd5+ Kd4 Rg2 Bd2 Qff4 Be1 Bh6 Bf2 Qfg5 Be1 Nf4 Ke3 Rh2 Rg2 Nd5+ Kf2 Qc1 Kf1 Bf4 Re2 Rf2+
1k4rr/NP4qB/2q2R1K/NPpn4/pR1qP1R1/r1nbB1R1/6Qb/2q3r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Kg4 f5+ Kh5 c5 b4 Kc7 d4 c3 g4 c2 d5 h3 e3 f3 g5 f4 g6 h2 g7 a4 Nc3 f2 Bb2 c1Q Nf3 Na6 d6+ Kb8 d7 Nf6+ Kh6 Nd5 b6 Bd6 g8R Nac7 b7 Nb5 Be2 f1Q Bd3 Qg1 Nd2 f3 Ra3 f2 Qc2 f1R Nc4 Rf3 Na5 Qg2 Rf1 Qg7+ Kh5 h6 Bh7 h1R+ Qh2 Rg1 Qg2 Qdf6 d8R Qd4 Rf2 Rg3 Rf6 Rf3 Rde8 Bh2 Re4 Rg3 Rg4 Rf3 Re8 Rg8 Ree4 Bf5 Ref4 Be4 Rb3 Bd3 Rg3 Rh8 Rfg4 Rg8 Nb1 Nbc3 Na3 Rh8 Nb5 Rg8 Na7 Rh8 Kh4 h5 b5 Rg8 Rb4 Rh8 Bg6 Rg8 Kg5 h4 Kh5 h3 Ba3 Rf2 Bh7 Ra2 Bb2 Ra3 Rgf3 Bf4 Rfg3 h2 e4 h1Q+ Qh3 Qf3 Qg2 Bc7 Ba1 Qff4 Bb2 Qd6 Ba1 Qc6 Bb2 Qc2 Bc1 Rh8 Be3 Qc1 Rgf3 Bh2 Rfg3 Kc7 Nc4 Rag8 Na5 Qgd7 Kh6 Kb8 Bg5 Qdc7 Be3 Qg7+
6b1/Npr3bB/1QPr4/1P2n1kb/1n1KRq2/bp2N1qn/N6P/1BR3Nn w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 b5 exf4 Bd2 Qf6 Bc3 Qd8 Bb4 axb4 Kf2 Ke7 a4 Kf6 c4 d5 e4 g5 a5 g4 a6 f3 e5+ Kg5 e6 f5 h6 f4 h7 g3+ Ke1 b3 Kd2 f2 Kd3 g2 e7 f3 e8B Qd6 a7 Nd7 c5 Ne5+ Kd2 d3 Kc3 d4+ Kb2 d2 c6 d3 Kc3 Bg7 Ra3 Nf6 Qe2 d1B Bh5 d2 Bf7 Nd5+ Kd4 Be6 Nc3 Rad8 Bg6 Bg8 a8N Qb8 Qc4 Rd6 Nb6 Nb4+ Nbd5 Qc7 Be2 f1Q Na2 f2 Bed3 Bh5 Bb1 d1N Qc5 Qe1 Ra5 f1N Ra4 Nf2 Qb6 Nh3 Bge4 Qg3 Bg6 Bf7 Bge4 Re8 h8N Bg8 Ng6 Rc8 Ne7 Qb8 Bh7 Rc7 Nc8 Qf4+ Kc5 Ng3 Ne3 Rf6 Ne2 Rd6 Rc1 g1B Na7 Bf2 Ng1 Nh1 Ra3 Be1 Ra4 Bc3 Nd5 Bb2 Ne3 Nc2 Re4 Nb4 Ne2 Ba3 Ng1 Rg6 Kd4 Qg3 Rc3 Qf8 Rc4 Qff4 Rc1 Rd6+
4Rq1r/2pkqN2/4pq2/Q1PB1nB1/N2rP1r1/qn2qb2/4P2N/1K1R1Nn1 w - - 0 2 legal: proof: g4 f5 b4 fxg4 b5 e6 b6 Bc5 h3 gxh3 Ba3 Be3 dxe3 axb6 Bb2 b5 Bc1 b4 Kd2 g5 f4 d5 a4 b5 c4 h5 Kc2 h2 f5 g4 f6 b3+ Kb2 b4 c5 d4 a5 h4 f7+ Kd7 a6 d3 a7 h3 Ra4 d2 Ra1 g3 Qc2 d1R Bg2 Bb7 Ra5 Qf8 Ra6 Nc6 Bd2 Nd4 Ra3 Nh6 Nf3 Nhf5 Re1 h1Q Ka1 h2 Ra6 b2+ Ka2 Nb3 Qc3 Qg1 Ra5 h1Q Nh2 Rb8 Bd5 Qf3 a8N g2 Bc1 Rg8 Nd2 Rg4 Ndf1 Rdd4 Rd1 Qgf2 Ra3 g1N Kb1 Qe7 Ra5 Rh8 Rb5 Bc6 Rb8 Qfh4 Re8 Qhf6 Qd3 Qh3 Qa6 Qhh6 Qa5 Qhf8 Bc4 Bf3 e4 Q8h6 Bd2 Qe3 f8N+ Kc6 Nh7 Kd7 Ng5 Qff8 Kc2 Qff6 Rc1 Qff8 Nf7 b1Q+ Kd1 Qb2 Bd5 Qa3 Kc2 Na1+ Kb1 b3 Rd1 b2 Ba2 Nb3 Nb6+ Kc6 Na4 Kd7 Bc1 Qeh6 Bg5 Qhf6 Kc2 b1Q+ Kc3 Qa1+ Kc2 Qc3+ Kb1 Na1 Bc4 Nb3 Bd5 Qe3
8/2P3QR/n1nrn1BR/kN1B3n/5Ppn/rp1b1q2/rB1N1KP1/1n2n2B w - - 0 1 illegal: Other
q5N1/1Bb2Q2/3qn3/1pNR1rNb/RPbPb1p1/N7/5PKn/Bb1kn1b1 w - - 0 1 illegal: No proof kernel
8/2nRR3/1qr3b1/2qQP1Np/q1pqP1Bq/B1BN1b1P/K3q2k/1n1B2b1 w - - 0 1 illegal: No proof kernel
6r1/Nn1B2Q1/R1p1pq1q/3k1b2/P1N2qNN/3r4/1BPP1b2/Kb1Rqqq1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 h3 g5 Qe2 g3 Qg4 Nd7 Qd1 Ne5 h4 g4 Bb2 Nf7 Bc1 Ng5 hxg5 Qd3 Nf3 Qd4 Ng1 Qd8 a4 Kf7 f4 Ke6 g6 h5 g7 b5 f5+ Kd5 f6 g2 f7 b3 Qe2 g3 Kd1 c6 Ba3 e3 Kc1 b4 Kb2 h4 Qe1 e2 Nh3 g1Q Nf2 h3 Nd3 h2 Nf2 g2 Nh3 Bf5 Ra2 e6 Nf2 Bc5 f8N Nh6 g8N Nf7 Ka1 Rh3 Ng4 Nd6 Bb2 Nb7 Na3 Bf2 Nc4 Qf6 Ng6 Rd3 Nh4 Rc8 Qd1 e1Q Be2 Qgf1 Ne7+ Ke4 Qb1 Rg8 Nc8 g1Q Na7 Kd5 Bd1 Qe3 Be2 Qf3 Qe1 Qf4 Bd1 Be3 Qg3 Qe1 Ra3 Qgf1 Rg1 h1Q Ra2 Qh2 Rh1 Q4h6 Qc7 Qff4 Qg7 Bf2 Rf1 Qee4 Be2 Qg1 Rd1 Qf1 Nge5 Qeg2 Bh5 Qgg1 Be8 Qe1 Ng4 Qgf1 Bd7 Qg1 Bd4 b2+ Kb1 Qgf1 Ra3 Qg1 Rb3 Qgf1 Ka2 b1B+ Ka1 Qg1 Bb2 Qef1 Rc3 b3 Na3 Qe1 Rc5+ Kd6 Rb5 Qgf1 Rb6 Kd5 Nc4 Rf3 Rb4 Qg1 Rc1 Qef1 Be5 Ba2 Rb6 Rd3 Ra6 Be3 Kb2 Bf2 Ka3 b2+ Bc3 b1Q Re1 Qd1 Kb2 Bb1 Ka1 Qde2 Bb2 Qee3 Rd1 Qee1
q1b2nN1/1NQ2P1R/1qb1B2b/8/b2ppPqk/B3P3/RRq5/nK2rRb1 w - - 0 1 illegal: No possible last move
1B3q2/1B1PN1r1/1Qnp2rP/1q1Pq2k/N3R3/5nbp/NRq3q1/n2n1N1K w - - 0 1 illegal: No proof kernel
R2qr1nN/5B1P/1QnB2rp/1npr3N/P1P1r1qB/1K1n1b2/3k1n2/1B3R2 w - - 0 1 illegal: No proof kernel
3k3K/1P1pqbBN/5q1b/q1R1R2P/2b3Bq/pb3r2/Pn3QN1/2nq1BB1 w - - 0 1 illegal: No proof kernel
3Kn1b1/8/P2P1RN1/1kn2qQb/n1p1NRq1/1q2npb1/1qBr1P1N/4B2N w - - 0 1 legal: proof: c4 b5 e4 a5 d4 g5 h4 gxh4 d5 Ra6 b4 axb4 c5 Rd6 c6 dxc6 e5 c5 exd6 c4 Kd2 Kd7 Ke3 e5 Ke4 c5 Kf5 h5 a4 h3 g4 e4 g5 b3 a5 h4 g6 e3 a6 e2 g7 e1N Qf3 h2 Qe3 h3 Ra3 b2 Nd2 b1N Qc3 b4 Qb3 c3 Ra1 c4 Qa2 b3 Ne2 b2 Qa5 c2 Ke5 f5 Nd4 f4 N2b3 Nf6 g8N Qb6 Nf3 Ne8 Bg2 Nc3 Bd2 b1Q Nh6 c1Q Ra3 Nc2 Be1 Qcb2 Nbd2 Q6b3 Nf5 Ne3 Ne4 Q1c2 Rg1 h1B Nfg3 h2 Bf1 Bg2 Bd3 h1Q Nh2 Bf3 Rg2 Qf1 Nh1 Bh5 Rg6 Qfe2 Rf6 Qg4 Qc5 Qcb1 Bc2 f3 Ra5 Be7 Rb5 Rh7 Rb6 Rg7 Rf4 Bh4 Rc6 Bg3 Qb5 Nc7 Kf6 Rg6+ Kf7 Na4 Qc5 Ne8 Rb6 Kd8 d7 Rd6+ Kf8 Bb7 Qa5 Kc7 Ke7 Ba8 d8N Nd7 Nf7 Ndc5 Nh8 Bb7 Qd2 Bc8 Ng6 Be6 Qa5 Bg8 Qd2 Rd8 Rbf6 Rd6 Qc1 Kb6 Qd2 Kb5 Qc1 Re6+ Kd8 Re5 d6 Rd5 Qd2 Rd3 Qc3 Rd2 Qe5 Q2c1 Qg5 Qcb2 Bd1 Q1d3 Bc2 Qd5 Qh4 Qde6 Qg5 Qef5
k4KN1/n6q/7R/1Bp1P1Br/b2brQr1/qpn4R/1PN2NpP/N2n1b2 w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 cxd5 hxg4 a5 Nc6 a6 Nb4 Bh3 Nxa6 Bg2 Nb4 Bf1 Na2 Kf2 Kd7 e4 g5 d4 a5 e5 b5 d6 Kc6 d5+ Kb7 d7 f5 d6 g3+ Kf3 a4 Nh3 b4 Qe2 g4+ Kg2 b3 Be3 f3+ Kg1 f4 Nc3 f2+ Kg2 a3 Qc4 Rh5 Nd5 Nc3 Rg1 a2 Nb4 Ne7 Nc2 Nc6 Bd2 Qe7 d8N+ Ka7 d7 Qh7 Nf7 Bc5 d8N Bd4 Ne6 Bd7 Nh6 Rf8 Be2 f1N Ng8 Ka8 Nf2 Na7 Qb4 c5 Bb5 Rf7 Re1 a1Q Re3 Qa3 Na1 Rff5 Qc4 Rh4 Rf3 Rfh5 Rd3 Be3 Nd4 Be8 Ndc2 Bd4 Ba6 Ba4 Bb5 Be3 Rd6 Bd4 Rh6 f3+ Kh1 Nd1 Bg5 Nfe3 Re1 Nd5 Re3 N5c3 Rd3 Be3 Qf4 Bd4 Re3 Qd3 Kg1 Qh7 Kf1 g2+ Ke1 g1R+ Kd2 Qc7 Kd3 g3 Kc4 Qh7 Rd3 g2 Re3 Re1 Rd3 Nb1 Kd5 Rg4 Kd6 Nbc3 Ke6 Re4 Re3 Qf5+ Ke7 Qg6 Kf8 Qh7 Nh1 f2 Rh3 f1B Nf2 Re2 Qd2 Re1 Qf4 Re4
n2Q4/1r1r1q1N/1R4P1/1q1pbPK1/2kN2pn/1NB2p2/b2PrqRB/2b4N w - - 0 1 illegal: No proof kernel
1bk5/n7/1RN1NP1n/QnPBB3/2r3B1/2BpRKqr/2P1pp2/q2bbq2 w - - 0 1 illegal: No possible last move, all moves rejected
rN1BqQ2/2nr4/3pR1PK/8/qrkPp1q1/n1b3N1/bn2NpP1/2NR3B w - - 0 1 illegal: Other
K1b1q1nn/R3br1p/7R/2NQ1PP1/1Nr5/p1N3BP/n2pB2b/1qk2q1N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 fxe4 f5 g6 Qf3 g5 Qf4 gxf4 Kf2 Kf7 b4 Kf6 g4 Ke5 c4 d5 b6 a5 b7 f3 g5 d3 Ke3 a4 c5 f2 c6 d4+ Kd2 Kf4 c7 e5 h3 Nc6 b8Q Nce7 b5 Ng6 b6 Ra7 b7 Qe8 Nc3 Be7 Be2 f1Q Bb2 Qb1 Qa8 Qf1 b8N a3 Nc6 Ra4 Rc1 Rc4 Rc2 Qb1 Nb4 Qf1 Qd5 Qb1 Bc1 e3+ Kd1 e4 Rb2 Ba6 c8N d2 Nb6 Bc8 Nba4 Bd6 Bg4 Be7 Ke2 d1N Nc5 d3+ Kf1 Bd8 Kg2 Be7 Rd2 e2 Bf3 e1Q Nge2+ Ke3 Ng3 Nh6 Be2 Rf8 Rg1 Rf7 Nh1 Nh8 Bb2 Qh4 Re1 Ng8 Rc2 Qh6 Rc1 Kd2 Ba1 e3 Kf3 Rg4 Bb2 Qa6 Ba1 Rg3+ Ke4 Rg4+ Ke5 Rc4 Bb2 Qab5 Ba1 Bd8+ Kd6 Be7+ Kc7 Qa6 Na4 Qab5 Be5 Nc3 Bg3 Na2 Nc3 Qa6 Bg4 e2 Kb8 Qd6+ Ka7 Qf4 Ka8 Qf1 Rc2+ Ke3 Rd1 e1B Rcc1 Bf2 Re1+ Kd2 Re6 Bd4 Rh6 Be5 Re1 Bc7 Re3 Bb8 Be2 Kc1 Ree6 d2 Ra6 Bf4 Ra7 Bc7 Bf2 Bh2 Be1 Rg7 Bg3 Rf7
3b1K2/1RNp1n1b/1P3P2/qr4Bp/2kqP1NB/2nR1prq/b2nB1B1/4Q3 w - - 0 1 illegal: No proof kernel
qBB2N1b/2P3b1/1p1B4/2nbBrq1/3qRQpn/1PN2nrP/2K2kp1/7R w - - 0 1 legal: proof: g4 c5 e4 h5 d4 cxd4 b3 hxg4 Bh6 f5 exf5 a5 Qc1 a4 Qb2 a3 Bc1 axb2 Kd2 Kf7 a4 Kf6 c4 Ke5 f4+ Ke4 h3 d5 f6 g5 c5 e5 c6 g3 f5 g2 f7 d3 a5 d4 a6 b6 a7 Ne7 f6 Nd7 Kd1 d2 Ne2 Ke3 Ra4 e4 Kc2 d3+ Kc3 Kf2 Ra3 d1Q Ng1 d2 Bc4 e3 Bf1 e2 Ra4 e1B Ne2 Nf5 Nf4 Bb7 Ba6 Qf3+ Kc2 Rg8 Nc3 b1N Bb2 Nc5 Ne6 Nh4 Re4 Bg7 f8B Qd5 Bd6 Raf8 a8Q Qe5 Ba1 d1Q+ Kb2 Qdd5 f7 Nd2 Bb8 Qdd4 c7 Bd5 Kc2 Qef6 Bb7 Qd8 Qa6 Qf5 Qa8 Ndf3 Qa4 Bd2 Bc8 Bf4 Qd7 Bfe5 Qd6 Bh8 Bb2 Beg7 Qf4 Qe8 Ba1 Qea4 Bb2 Qa8 Ba1 g4 Bb2 Qg5 Ba1 Rd8 f8B Rd7 Be7 Rf8 Bd6 Rf5 Nf8 Re7 Ree1 Re3 Bb2 Rd3 Re4 Qd8 Ba3 Qg5 Be5 Na6 Be7 Nc5 B7d6 Re3 Qh2 Ng1 Qf4+ Rf3 Qc1 Rg3 Qf4+ Ngf3
Bn2r1n1/qPBkpPbp/2R5/5N1R/NQq1br1P/6Rp/2K1n1b1/3r3R w - - 0 1 illegal: No possible last move
1bk3r1/1p3B1p/Np1r2qK/B1P2b2/1q3nQ1/1N1Rn3/2NPrq1P/R4Nn1 w - - 0 1 illegal: No possible last move, all moves rejected
3N2N1/p2Q2p1/1bpKP1RB/2r5/kN1rb2q/Nn6/2PqBPnq/1Rn2b2 w - - 0 1 illegal: No possible last move
N1B1k1b1/2rbb3/1R1Brn2/1PR5/1rqn1K1P/1N2B2Q/pbP1pbp1/5B2 w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 a4 bxa4 g4 hxg4 Bh3 f5 Bf1 fxe4 Kd2 a5 Ke3 e5 f4 g5 h4 d5 b4 d4+ Kd2 e3+ Kd3 g3 Ke4 g4 f5 d3 f6 g2 b5 a3 c6 g3 c7 a2 Na3 a4 Qf3 e2 Nb1 e1R+ Qe3 d2 Be2 d1B Qf4 a3 Be3 Nc6 Bc1 Qd5+ Ke3 e4 Nc3 Be7 Na4 Be6 c8B Rh7 Nf3 Qc4 Rh3 Nd4 Qg4 g1B+ Kf4 g2 Be3 Bf2 Nb6 Ra4 Bf1 Rb4 Nd2 Bf3 Rg3 Bd7 Nb3 Re2 Rd1 a1B Na8 a2 Qh3 Bb2 Rg5 Bh5 Rc5 Bf7 Bc1 e3 Rd3 Bd5 f7+ Kd8 f8B Ke8 Rc3 Nf6 Rc6 Bg8 Rb6 Rh5 Bd2 Rc5 Bc1 Rc7 Bd2 Qf7 Rc5 Qc4 Bc1 Re1 Bd2 e2 Bc1 Rd1 Be3 Rd3 Bc1 Re3 Bd2 Bd8 Bd6 Re6 Be3 Be7
N6R/b3bnrb/1P1N3r/Kp4br/n7/2P1BpQ1/qp2R1PN/2NB2bk w - - 0 1 illegal: No proof kernel
1K1k3n/2RNr3/1p1R1bnN/PbQ1BB2/2np1nr1/1n2P3/P2bp3/N2N3q w - - 0 1 illegal: No proof kernel
BR4B1/3nQ3/1p1RpN1B/3rr1Pn/2nbb3/nbP1NP1B/K2kq1np/8 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 g4 Ke6 a4 Ke5 a5 Kf4 g6 d5 c3 h5 Kc2+ e3 Kb2 d3 g5 h4 g7 b6 a6 e6 a7 h3 f3 h2 Qe1 d2 Ra6 d1B Bc4 b3 Ka1 b2+ Ka2 d4 Bb3 d3 Qf2 d2 Bc2 e2 Na3 e1N Qf1 Ke3 Qc4 b1N Be4 Nd7 Bf5 Ngf6 g8B Ng2 Qc7 Bc5 Ne2 Bb7 Ng3 Bd4 Bh3 Be4 Nh5 Qb8 Qc5 Qe5 Nc2+ Ke2 Qe7 Na3 Ne3 Bb3+ Ka1 Rc8 a8B Rc5 Rd1 Rh7 Bb2 Rf7 Ra7 Rd5 Rb7 Rf8 Rb8 Rc8 Ng7 Nh5 Ne8 Rcc5 Nf6 Ra5 Rf1 d1N Rg1 Nc4+ Ba3 Ndb2 Rd1 Rab5 Bb4 Na3 Rd3 Bd1 Ka2 Nbc4 Qf7 Bc2 Bf8 Rbc5 Bh6 Bb3+ Ka1 Qg3 Rd1 Qf2 Qe7 Re5 Rd3 Rcd5 Rd1 Bbc2 Ka2 Qf1 Rb1 Kd2 Rb5 Bd1 Rc5 Ba4 Rc6 Qe2 Rd6 Bb3+
1B1K4/1rr2Q2/3np3/1bP1pRn1/1pqb1BkP/nbP5/B3rR2/b1N1NB2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 hxg4 e5 f6 Ba6 fxe5 Bb5 Ra4 Bf1 Ra8 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kd3 Kf5 h4 b5 f4 d4 a4 g3 a5 b3 a6 b4 Kc4 d3 Kb5 b2 a7 d2 Nc3 b1N Ba3 g2 Qe2 d1B Qd2 Nd7 Kc6 Nh6 Bb2 Rh7 Qd5 Ba6 Na2 Nb6 Ba3 Bb5+ Kb7 Nc4 Nc1 Rc8 a8B Nf7 Nf3 g1B Rh2 Ng5 Ra2 Bd4 Ne1 Kg4 f5 Rc6 Qf7 Qd5 f6 Nd6+ Kb8 Rc7 Rf2 Qc4 Bd5 Ba1 c3 Bb3 Bb2 Na3 Rf5 e6 Qe8 g6 f7 Bh6 f8B Rhd7 Qf7 Rb7+ Ka8 Rdc7 Be7 Nh7 Bd8 Be3 Be7 g5 Bf8 Ra7+ Kb8 Bd4 Be7 Kg3 Bd8 g4 Be7 Ng5 Bf8 Nde4 Bd6 Rcb7+ Kc8 Rc7+ Kd8 Rab7 Bd3 Kh3 Be2 g3 Bd3 g2 Bf1 Nc2 Ba3 Kg4 Bb2 g1R Ba3 Re7 Bb8 Rg2 Rb2 Rec7 Ra2 Ne3 Raf2 Nc2 Bb2 Nd6 Ba3 Qe2 Bb2 Na3 Bc4 B3a4 Ba2 Qe4 Nb3 Qd3 Bc1 Qc4 Bf4 Rh2 Nc1 Bb3 Rf3 Rc2 Rf2 Re2
n6R/b4B1r/p3K1B1/1kP3p1/2q2B1n/1N1Qn1Pr/PB1r1pnR/4b1Nb w - - 0 1 legal: proof: c4 d5 f4 e5 b4 c5 bxc5 dxc4 g3 exf4 Qc2 h5 Qd3 h4 Qf3 h3 Qg2 hxg2 Kf2 Kd7 Kf3 Kc6 Ke4 b5 Ke5 f5 e4 g5 d4 f3 h4 c3 h5 b4 h6 f4 h7 a6 Bb2 f2 Rh6+ Nf6 Rh3 b3 Nd2 c2 Rh5 c1B Ba3 f3 Nh3 g1N Nb1 b2 Bc4 f1N Nf4 f2 Bb4 Ra7 Rh6 Ne3 Rh2 Nbd7+ Ke6 Bd2 e5 Nfd5 Ne2 Be1 Nd2 b1R Nb3 Ng2 Bd2 Rb2 Bf4 Nf3 Ng1 Nde3 Rd1 Rd2 d5+ Kc7 d6+ Kc6 Ra1 Nb6+ d7 Bd6 Bd3 Bc7 Bg6 Bb7 Rb1 Qa8 d8Q Nfh4 Qd3 Qd8 Rc1 Qd4 Rc4 Bb8 Rb4 Rd8 h8B Na8 Bg7 Qc3 Rd4 Rh8 Rd8 Rh6 Rh8 Qd4 Ke7 Rh5 e6 Qc4 Bb2 Kb5 Kf6 Be4 e7 Rc7 Ke5 Ba7 e8B+ Bc6 Kd6 Rch7 Bgf7 Nf3 Bg6 Rh3 Bef7 Nfh4 Bfe5 Nf4 Ke7 Bh1 Bd6 Nfg2 Bf4 Nd5+ Ke6 Nde3+
RrN2q2/1p1P1b1k/3bR1N1/1n3b1r/4Q3/pP1KpRr1/1PBBb1n1/1R1n4 w - - 0 1 illegal: No possible last move, all moves rejected
1B4n1/5q1K/4k2p/1R2NrP1/nR1b2b1/P1bPQRpp/bN4Rq/3Brb2 w - - 0 1 illegal: No proof kernel
1r3Q2/1qb3q1/PnP2N1K/1R1pN1P1/2rbBp2/1bR2p2/kb2n3/2BNN2b w - - 0 1 illegal: No proof kernel
2N2bb1/2K3qP/1pn1q2p/R3Rbbk/n1b4N/NBP4r/NPQ1p2r/1B6 w - - 0 1 illegal: No proof kernel
1q3qB1/rR1b1P2/1K2Qpn1/1n3P1P/N1p2r1b/n3p3/3R1R1R/Nk1n1Bn1 w - - 0 1 illegal: No proof kernel
4R3/3N1kb1/2RB2bB/qP1brq1p/4Ppp1/2Q2B2/n3P3/nNrn1BKn w - - 0 1 illegal: No proof kernel
8/b2nNB2/2Kp2bP/2R5/b2BPqB1/pP1Q1q1r/1qn1Npk1/1R1B1r1q w - - 0 1 illegal: No possible last move
1N4nk/q1r3Nr/P2B2q1/B4p2/3p2PQ/N1bP1pR1/Kb2b1nq/1R2bN2 w - - 0 1 legal: proof: c4 e5 b4 b5 f4 exf4 h4 g5 hxg5 a6 e3 Nf6 Bd3 Ng8 Bc2 Ra7 Ba4 bxc4 b5 Ra8 b6 Qe7 Bc6 Qd8 Bb5 axb5 g4 d5 a4 c5 b7 h5 g6 h4 a5 c3 g7 b4 e4 b3 e5 h3 e6 d4 e7 b2 Qb3 h2 Kd1 c4 Kc2 f3 Qa2 Ra7 Qa4+ Qd7 Ne2 Nc6 b8B Ne5 Bd6 Nd3 Ra2 Ba6 Qb4 Rc7 Qc5 Rh7 Ng1 Nf4 Qg5 Ng2 Qh4 f5 Ne2 Kf7 Re1 h1Q e8N Qh2 Ng3 Qe7 Na3 b1Q+ Kd1 Qa1 Kc2 Qf6 Nf1 Qg6 Bb2 Be7 Rb1 Bf6 Kc1 c2 Bc3 Be5 Rb2 Bg3 Bcb4 Be1 Bc3 Nf6 g8N Qa2 Ne7 Ng8 Nc6 Bb5 Nf6 Kg7 Ne8+ Kh8 Ng7 Ba6 Nb5 Qa3 Nb8 Qc5 Bb4 Qa7 Na3 Bb5 Ra2 Ba6 Kb2 c1B+ Ka1 c3 Rab2 c2 Ka2 Be2 d3 Be3 a6 c1B Ba5 B3d2 Rc2 Bc3 Rd2 B1b2 Rc2 Ne3 Rd2 Bd1 Rg2 Be2 Rg3 Ng2
N4n2/B2Nrbp1/2P3r1/2R2RNr/qk3b2/2p1BpP1/r3qPKQ/1n1Nq3 w - - 0 1 illegal: No possible last move, all moves rejected
R1B5/bq3PpB/nB1qPr1k/R1p3NN/4b3/6rn/2bQ1p1P/Kb4Bn w - - 0 1 illegal: No proof kernel
1b2Q1qr/1B1np1pP/P2qqb1B/P5BR/K2kr3/5nR1/3N1p2/2q2bBN w - - 0 1 illegal: No proof kernel forced: wxDB
r5nR/B3pPnp/q1R1r1RN/1bQ1N3/2p5/1r1BP2b/1K1n1qPk/2n1R3 w - - 0 1 illegal: No proof kernel
1bbn3n/k2p2R1/P1RKp2B/4NN1P/1rp2q2/1PrB1R2/2R2qr1/2Qn1r2 w - - 0 1 illegal: No possible last move
4BR1K/2PR1N2/1p3Pbr/3npN1b/P1n2p2/2BB2Bk/Q3qb2/rn3q1n w - - 0 1 illegal: No proof kernel
1R2n1Bk/b1p1Br1p/1p6/n1r1KP2/4PP1N/2Q2B1b/Rr1N3q/1Br1n2q w - - 0 1 illegal: No proof kernel
5k2/qP1Rnp1p/3rnR1R/2q1qPqQ/N1Bb1b2/2r5/2p1P2N/BK3bR1 w - - 0 1 illegal: No possible last move, all moves rejected
k3B1rR/1p3R2/2nQq1q1/2r3RP/6Rp/5pPN/qN2bPqn/KbB4r w - - 0 1 illegal: No proof kernel
r2k1n1b/5qp1/4n1NN/4RPPR/2R5/r1BKPpnr/1n1bBrp1/2QR4 w - - 0 1 illegal: Other
5R1r/q2p1p2/N2R1rP1/1bq3kP/4RNn1/6pR/B1q2BPQ/K2nnnn1 w - - 0 1 illegal: No proof kernel
6r1/PrBKnrb1/krprB3/2B1q1pN/1q5Q/p4qPR/1N1R1P2/6Bn w - - 0 1 illegal: No possible last move, all moves rejected
2R1Bq1q/1B2R3/2p3n1/1n1N1PNp/rB1rp1Q1/b2P1K1n/qq2P1B1/1kq5 w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Qd4 Qb3 Qd5 Qd1 Qd8 a4 Kf7 f4 Ke6 a5 Kd5 f5 Kd4 d3 b5 a6 e5 g5 h5 a7 b3 g6 b4 g7 c6 Bg5 c3 Ra4 c2 Kd2 c1Q+ Ke1 b2 Rh2 Ne7 g8B Ng6 Ba2 Na6 Nd2 Kc3 Ra3+ b3 Nc4 b1Q Nh3 g1Q Nb6 Kb2 Be7 g2 Ng5 Nc7 Bb4 Nb5 Nd5 Qgc5 Rh3 g1N Rg3 Nh3 Bg2 Qe8 Ra5 Rd8 a8B Ka1 Ra6 b2 Ra7 Qce7 Bc4+ Qa2 Bb7 b1Q Ra8 Qh7 Rc8 Qbb2 Rg4 Kb1 Rg3 Nhf4 Kf2 Nh3+ Kf3 Bd6 Qh1 Qf8 Qg1 Rg8 Qd4 Qh8 Qg4 Bc5 Nf6 Rd4 Bf7 Rg7 Be8 Rh7 Nd5 Rf7 Ba6 Ra7 Bb7 Ra4 Qh4 Qcd2 Nf7 Bb6 Ba5 Ngf4 Rg7 Qdc1 Qg4 Bc5 Ng5 Ba3 Bb4 Ng6 Re7 e4+
2qR3b/2B2p2/N1pr1r2/2P1bqR1/K1N1p1Nk/1P4b1/3r1PQ1/1NBbb2n w - - 0 2 legal: proof: g4 b5 e4 d5 a4 bxa4 h4 Nd7 g5 Ndf6 h5 Nh6 gxh6 Ng8 Bh3 dxe4 Bf5 Rb8 Bg6 hxg6 Rh4 Ra8 Rh3 Nf6 Rh1 Ng8 c4 e5 d4 Ke7 Kd2 Kf6 Kc2 a5 b3 c6 c5 g5 h7 e3 d5 g4 d6 Kg5 d7 g3 h6 e4 Nh3+ Kh4 Bd2 g5 Bb4 a3 Qe1 g4 Kc3 a4 Rh2 g2 Qg1 e2 Kc2 e1B Ra2 g3 Ba5 Nf6 Qf1 g1R Rg2 Nh5 Ng5 Bd6 Ne6 Qg5 d8N Qf5 Ra1 a2 Nc7 a3 Nb7 Rd8 h8N Bf4 h7 Rd2+ Kc3 Be6 Kb4 Rad8 Qa6 R8d6 Qf1 Bc4 Ka4 Be2 Na6 Bd1 Bc7 Rh1 Rg1 g2 Na5 Ng3 Nc4 Rh2 Na5 Nh1 Nc4 Bg3 Ng6+ Kg4 h8B Rh6 Nh4 Rhf6 Ng6 Kg5 Nge5 Kh4 Ng4 Qc8 Nc3 Qf5 Rc1 a1B Nb1 a2 Rc3 Qc8 Rd3 Bae5 Bg7 a1B Bh6 Rb2 Bc1 Rd2 Qe2 Bac3 Qf3 Bcd4 Rf1 g1Q Qg2 Qh2 Rg1 Bb2 Rd5 Qh3 Rd4 Rde6 Rd8 Red6 Nh6 Qhe6 Ng4 Qf5 Nh2 Rg6 Nca3 Bgf4 Qf1 Bg7 Rg5 Bbe5 Ng4 Bh8 Nc4 Rgf6 Qg2 Bg3
r6b/1BB2qQB/KP3r1b/2qn3k/3N1q1p/1N1p2pr/2b1P1PR/1R2B1q1 w - - 0 1 illegal: No proof kernel forced: bxLB
1n2qBK1/6nb/1PB1Rp2/7R/N1BB2rb/qp5Q/1PkbbPp1/n4N1q w - - 1 2 legal: proof: e4 a5 d4 h5 g4 hxg4 a4 b5 d5 b4 d6 cxd6 e5 dxe5 Nc3 e4 Nb1 e3 Bb5 Ra7 Ba6 Rb7 Bf1 Rb5 axb5 Bb7 Qf3 Ba6 Qd1 Bc8 Ke2 g5 Kd3 d5 Kd4 Kd7 Ke5 e2 c4 e1B h4 a4 h5 d4 b6 Kc6 h6 Kc5 h7 d3 Nf3 b3 Rh6 g3 Bh3 g4 Rd6 a3 Bg5 a2 Bh4 g2 Na3 g1Q Rd4 d2 Rb1 a1N Bg5 g3 Bf1 g2 Nh2 Bf5 Rd6 Nh6 Qf3 d1B Re6 Qh1 Nb5 Be2 Qh3 Rg8 h8B Bd2 Nc3 Qe8 Na4+ Kb4 c5 Bh7 c6 Kc4 c7 Nf5 c8B Ng7 Be3 Kd3 Bd7 Kc2 Bd4 f6+ Kd5 Bg5 Bc6 Bh4 Rd6 e5 Re6 e4 Rd1 Ba6 Bc4 e3 Nf1 e2 Rb1 e1Q Rd1 Nf5 Bg7 Bb4 Bf8 Ng7 Rd3 Qc3 Rg3 Qe1 Rg5 Bd2 Rge5 Qb1 Rh5 Qa2 Kd6 Qc8 Ke7 Qa3+ Kf7 Bb5 B4d5 Be2 Bc4 Nf5 B6d5 Rg4 Bb7 Ng7 Bc6 Bf5 Kg8 Qe8 Ba8 Bfd3 Bc6 Bh7+
6Nn/KR2pN2/1PbPBr1N/1nq2Q2/p2pNn2/1r3R2/P1qr4/3k1qBr w - - 0 1 illegal: No proof kernel
2q5/1bpRr2r/1p1nkqRP/rPn1Br1n/1R4RN/5Bp1/2P2n2/2Q2N1K w - - 0 2 legal: proof: f4 a5 g4 h5 b4 hxg4 e4 d5 b5 e5 Qe2 Bd6 Qe3 dxe4 Qc5 e3 Qa3 e4 Qb4 Be5 fxe5 axb4 d4 Ke7 h4 f5 a4 g5 e6 e2 Kf2 e1Q+ Kg2 g3 h5 b3 d5 f4 h6 f3+ Kh3 b2 a5 b6 a6 e3 a7 g2 Kh2 g4 Ra6 f2 Nf3 g1N Nbd2 b1N Bb2 e2 Be5 Na3 Nh4 Nc4 Bg2 f1R Ra4 Bb7 Rb4 Nd6 Bf3 Nh3 Rg1 Nf6 Kh1 Rf2 Nf1 Qc8 Rg2 Qc3 Rg1 e1R Rg3 Ke8 e7 Kd7 e8R Rh7 Rg8 Nh5 Rg6 Na6 Rg2 Nc5 Rg3 Rb8 a8Q Qb2 Qa6 Ra8 Qa1 Ra5 Qc1 Qd4 Rg2 Qf4 Rg3 Qf6 Rg2 Nc4 d6 Ke6 d7 Nd6 d8R g3 Rd7 Ree2 Rh2 Re3 Bc6 Rf4 Bf3 Rf5 Rd2 Re2 Rdd4 Nf2+ Kg1 Qb8 Rdg4 Qc8 Ba1 Re4 Bd4 Kd5 Bb2 Re5 Bd4 Ree7 Kg2 Ke6 Be5 Rf4 Kg1 Rf5 Kg2 Nfe4 Kh1 Nf2+
Bk1b1N2/4n2p/2np3Q/2rB1PBB/pKb1rp1R/3P3P/R2Nn3/1b2q1r1 w - - 0 1 legal: proof: e4 b5 a4 g5 f4 f5 Qg4 fxe4 f5 c6 Qf4 gxf4 axb5 c5 b4 cxb4 c4 a5 g4 e5 g5 a4 d3 d6 Kd2 Kd7 b6 b3 Kc3 e3 g6 b2 b7 Kc7 g7 e2 c5 e1N c6 e4 Ne2 e3 Kb4 Qe8 Nd2 b1B Ra2 Ne7 g8B Ra5 Bd5 Ng6 Bb2 Ne7 Bf6 Rg8 Nd4 e2 Bg5 Nf3 Bg2 Ng1 Bgf3 e1R Bh5 Rc5 Ne6+ Kb6 c7 Ka7 h3 Ne2 Rg1 Bh6 Nf8 Be6 c8B Bg7 Bd7 Bf6 Rg4 Bf7 Rh4 Nbc6+ Ka3 Kb8 B7e6 Ne5 Kb4 Rg6 Bh1 Rg1 Bed5 Rg7 Bdf3 Bc4 Bd5 Rg6 Bh6 R6g3 Bg5 Re3 Bhg2 Re4 Bgf3 Ka7 b8Q+ Ka6 Rb2 Qg6 Qc8+ Ka7 Bb7 Re3 Qe6 Kb8 Ra2 Nc8 Bfe4 Bd8 Bh6 Qg3 Bg5 Qe1 Qh6 Ne7 Bed5 Re4 Ba8 N5c6+
3RN3/nK1N4/6B1/2pqBqPr/p2pPnR1/bQ2n3/2PBbkrp/2B2b2 w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 g5 d4 gxf4 h4 exd4 h5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 e4 Kg3 b4 h5 b6 a5 b5 f5 b7 d3 b6 f3 Be3 f2 Ra4 h4 Nc3 h3 Qb1 d2 Qb2 d1N Qb1 f4 Bc4 f1Q Bd2 f3 Qb3 f2 Nf3 Nc6 b8B Ba3 b7 Na7 Ne5 c5 Rg1 Rh5 Nb5+ Ne3+ Kd6 Nf6 Kc7 d5 Nd7 d4 Nd6 Qh1 Bf7 h2 Rb4 a4 Bg6 Qc4 Ne8 f1B Rb5 Kf2 g4 Qd5 g5 Qf3 Rg4 Qff5 Kb6 Be2 Bf4 Bf1 b8B Ba6 Ra5 Bae2 Bbe5 Rb8+ Kc7 Rb4 Bc1 Rc4 Rb5 Rc3 Rb8 Rd3 Rd8 Rd2 Qb5 Qde6 Qb3 Nfd5+ Kb7 Qef7 Bb8 Q7e6 Bfe5 Nf4 Bbc7 Qef7 Ba5 Qd5+ Kc7 Bd1 Qb2 Kf3 Qb3 Rg2 Bad2 Bde2 Kb8 Kf2 Kc7 Qde6 Kb7 Qd5+
K1B1B2b/N1n5/1qp4p/nb2q2r/Q2B1pP1/2n1RpN1/2Pk3P/RBrb4 w - - 0 1 legal: proof: d4 e5 dxe5 a5 f4 g5 b4 gxf4 a3 axb4 Bd2 bxa3 Be3 Nf6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd4 Kf5 e3 b5 e6 f3 e7 a2 Kc5 Ke4 g4 f5 Nh3 d4 Na3 d3 Be2 b4 Nb5 b3 Qf1 d2 Bc4 d1B Nf4 b2 Nh5 b1N Bb2 f4 Na7 Nf6 Bd4 Bg7 e8B Ba6 Bd7 Nc3 Bc8 Nc6 Qe2 Na5 Re1 c6 Qd2 Ne2 Qb4 Nc3 Qa4 Ne8 B4e6 Nc7 Kb6 Bb5 Bb3 Nc4+ Kb7 Be5 Rb1 a1Q Ba2 Qb2 Ra1 Qd6 Bb1 Na5+ Kb6 Bg7 Re2 Qe5 Ng3+ Kd5 Re1 Qb4 e4+ Kc4 Bf5 Rad8 Bc8 Rd5 Re3 h6 Ra2 Rhd8 Ra3 Bh8 Ra1 Qg5 e5 R8d6 e6 Qe5 e7 Rd8 Re1 Rc5 Bg1 Rd3 e8B Re3 Rf1 Re1 Bd4 Qf5 Be3 Ba6+ Nb5 Ne4 Ka7 Be2 Bd2 Rc1 Nc3 Bd1 Re1 Qe6 Re3 Rh5 Nb5 Qe5 Qa3 Qb3 Bc3 Qb4 Kb8 Qbc5 Na7 Bb5 Bb4 Kd4 Qa4 Qb6+ Bb7 Bd3 Bc5+ Kc3 Bd4+ Kd2 Ba2 Na6+ Ka8 Nc3 Bb1 Bb5 Bc8 Nc7#
2RnB1rQ/2r1qNNp/4p2n/1b2pP1b/2NPRqrb/NK1k4/p6P/B7 w - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a4 d6 e5 dxe5 axb5 c5 Be2 cxb4 Bc4 Qc7 Bf1 Qd8 d4 g5 Kd2 Kd7 f4 Kd6 c4 a5 Kc2 b3+ Kc3 g3 c5+ Kd5 b6 Ke4 b7 b2 c6 g2 c7 a4 Kc4 e6 Nf3 g1Q Qb3 g4 Nh4 a3 Nf5 a2 Ng7 g3 Na3 b1B Bb2 Bd7 c8N g2 Nb6 Nc6 b8N Nh6 f5 Qe3 Qa4 Qf4 Kb3 g1R Bb5 Rg4 Rc1 Be7 Qa6 Rf8 Qc8 Be8 Rc5 Bd3 Re1+ Be2 Ba1 Bh5 Ba4 Bh4 Rc4 Nb4 Nc6 Rf7 Qb8 Qf6 Qh8 Rg8 Nd8 Nc6 Rc5 Ra7 Nf7 Nd8 Be8 Qe7 Rc8 Rd7 Nd5 Rc7 Ne3 Ba6 Nec4+ Kd3 Re4 Bb5
1B1B2bq/4p1bk/2r4q/2RPP1B1/RN1pbrP1/3nNBQ1/pp3K2/1n4n1 w - - 0 1 illegal: No proof kernel
k4r1R/2B1pBpP/B1rpQ3/7p/5R1P/b1n2nK1/1q2qPN1/1bBqNb2 w - - 0 1 illegal: No proof kernel forced: wxDB
1kq2rR1/1P1Rpr2/b1B3K1/pR2p1P1/n2pQ3/B1r2nb1/P1qN2Rq/1N6 w - - 0 1 legal: proof: e4 g5 h4 b5 hxg5 f6 c4 bxc4 d3 cxd3 e5 fxe5 Kd2 d5 Ke3 Kd7 f4 a5 b4 h5 g4 c5 g6 Kc7 f5 c4 g7 c3 b5 d2 f6 h4 f7 d4+ Ke4 h3 Bb2 h2 Bh3 c2 Ba3 c1R Qe1 d1Q Qh4 Ba6 Kf5 Qc2+ Kg5 Nh6 g8R Rh7 Nf3 Nf5 Rg1 h1Q Kg6 Bh6 f8R Qhh2 Bg2 Nd7 b6+ Kb8 b7 Rf7 Nfd2 Nc5 Bc6 Bf4 g5 Qc8 Rd8 Na4 Rd7 Bg3 Qe4 Nh4+ Kh5 Rd1 Rg2 Nf3+ Kg6 Rc1 Nc3 Re1 Rb1 Re3 Rb5 Rd3 Ncb1 Re3 Rf2 Rc3 Rg2 Qf8 Rb2 Ka7 Bb5 Rd8 Bc6 Kb8 Rb5 Qe8 Rd6 Qd7 Rdd5 Qc8 Rd7 Rdf8
bqB5/Np6/1BBk1q1p/5p1N/b4R1P/2rPn1qK/P1p1rBnn/4QR2 w - - 0 1 illegal: Other
nkBn4/1p1Q1b1q/2rp2bq/1q2BK1N/2R1pRPR/2P1P1N1/2p5/2R1r1r1 w - - 0 1 illegal: No possible last move
N3B3/Pnp2b2/b3pN1p/2RNB1P1/3pb2b/3q1r1r/2Pb1nR1/1QK1k1N1 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 e6 d5 Qe7 d6 f6 dxe7 fxe5 Qg4 e4 Qd1 Kf7 Kd2 Kf6 e8N+ Kg5 a4 Kf4 g4 d5 f3 Kg3 g5 Kf2 a5 b5 a6 d4 a7 h3 f4 b3 f5 b2 f6 b4 f7 h2 Ra5 b3 Ra6 e3+ Kd3 e2 Kd2 e1B+ Kd3 Nh6 Ra3 Nc6 Bg2 Bfb4 f8N Bbd2 Ra6 Nd8 Qh5 Bd7 Bb7 Ng4 Ng7 Be8 Nc3 b1B Rc6 b2 Nd7 Ba2 Rc5 b1Q Bc6 Qb3 Nb6 Bf7 Ne8 Nb7 Nf6 Raf8 Na8 Kf1 Ba3 Bh4 Be8 Ke1 Bb4 Qa3 Qh6 Bb3 Ncd5 Qa6+ Rc4 Ba4 Bd6 Bb5 Be5 Qa3+ Ke4 Ba6 Rc5 Ne3 Qh5 Nd1 Qg4 Qb3 Qf3 Qb5 Qb3 Qc4 Qb1 Qb5 Nh3+ Qf1 Rg1 h1B+ Rg2 Qc4 Qb5 Qb3 Ng1 Qg3 Ne3 Qh3 Kd3 Nf2+ Kc4 Qf3 Kb3 Qe2 Kb2 Qd3 Rg3 Be4 Rg2 Rhg8 Qb3 Rg6 Qb5 Rh6 Ned5 Rh5 Qb4 h6 Qb3 Bg3 Qb5 Rh3 Kb1 Bh4 Qb2 Bb4 Kc1 Bc3 Qa1 Bd2+ Kb1 Qf3 Nd7 Bfg6 Qa2 Rf5 N7f6 Bf7 Qb3 Qd3 Kb2 Bc3+ Kc1 Rff3 Qb1 Bd2+
1nrbr3/2N4p/1BB1PQbp/RPR2b1N/3np1PR/2K2q2/pR6/1r2k1b1 w - - 0 1 illegal: No proof kernel
n4K2/B1P1pPn1/2B1bNN1/7B/R2rnp2/1p2BQb1/1P3bpR/qrb2k2 w - - 0 1 illegal: No proof kernel
kbnKB1R1/q1Ppb1r1/1n1B1n2/4Q2p/3P4/bNrN1Pbp/4p1R1/2BB4 w - - 0 1 illegal: No proof kernel
qR4B1/1qk5/3b3n/Kp3r2/pNNR1bpP/3qnr2/P1pP1qN1/4NQB1 w - - 0 1 illegal: No possible last move, all moves rejected
BR6/RN2ppP1/q1R5/q3P1q1/3kpQp1/P1q2rB1/1Kn1bb1r/1RNn4 w - - 0 1 illegal: No possible last move
1KBrbbB1/2p2qR1/r1p1BpNn/1R1P2q1/3q1rb1/1Q1pN3/3PPB2/2k5 w - - 0 1 illegal: No proof kernel
1N1r4/pr3nq1/6qp/RR2P2k/4P3/Br2p1nb/KpB3NP/Q1NN2qn w - - 0 1 illegal: No proof kernel
3k1b1R/n1p3NP/1N2n2r/1RPbB2p/p3P1b1/B1nn1Qq1/p6K/BB2n3 w - - 0 1 illegal: No possible last move, all moves rejected
1r1bb2N/2B1rpk1/B5N1/1p1r3P/4qPN1/RPp1r1r1/K2N1Q1p/bn1R4 w - - 1 2 illegal: No proof kernel
2q1kn2/5n1p/rB1P1r1R/b2Pnp2/4KBpN/5B1P/2p2N1q/1B1Q1Rrn w - - 0 1 illegal: No possible last move, all moves rejected
1R3n1n/1K2k1qb/N3r2r/n5Rp/2Pp1B2/2PBn1p1/1rNpr1P1/1RQ3R1 w - - 0 1 illegal: No proof kernel
2q1Q1K1/6P1/p3p3/1p1P1nB1/bq2b1nB/P2pR1Nk/Nr2p2r/3BB1Rq w - - 0 1 illegal: No proof kernel
3R1r1q/3r1QpP/4p2N/2Bb3n/n1Kp3B/p1bNP1pn/N1P2qk1/5RN1 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 Kd2 Kf7 Kd3 Ke6 f4 Kd5 h4 a5 b4 d6 f5 g3 f6 a4 b6 e6 b7 a3 f7 Be7 f8B Rh6 h5 Qb6 b5 Na6 b8N Ra7 Nc6 Rh8 h6 Nf6 h7 Bb7 Ne5 Nh5 Ng4 Bf6 Qf1 Rg8 Be7 Rf8 Bg5 Ba8 Be3 Rd7 Nh6 Qa7 b6 Nc5+ Kd2 Ke4 b7 d5 b8N d3 Nc6 Bb7 Ne5 Na4 B3c5 Qa8 e3 Qe8 Ke1 d2+ Ke2 d1N Nd3 Bc3 Qf7 Nf2 Bh4 d4 Ra2 Bc6 Rb2 Qa8 Rb8 Bd5 Rd8 Nh3 Nf3 Bb2 Rf1 g1Q Kd2 Qh1 Ng1 Qf3 Bf6 Ba1 Bh4 Qf2+ Ne2 N3f4 Nc3+ Kf3 Na2 Kg2 Qf6 Qf3 Ng1 Nh3 Qf7 Qf4 Ne5 Qf2+ Kd3 Be4+ Kc4 Bc3 Nd3 Bd5+ Kb5 Rg8 Rf8 Qd8 Re8 Qe7 Rb8 Re8 Rd8 Qf8 Nab4 Qh8 Na2 Bb7 Kc4 Rf8 Nac1 Ba8 Na2 Bd5+
4BRb1/2r1N3/1r1N2p1/3r3R/1P1nP2R/2QRb1Pp/p3rp1p/2KBn1qk w - - 0 1 illegal: No proof kernel
2NQR1br/1kN1K1n1/Np2nr2/p3N1P1/qp3n2/pP2pR2/P2B3n/B5b1 w - - 0 1 illegal: Other
1B2r2R/1b1Brp2/2N2P2/B1nKpnRP/p2Q1B2/b1P1p1p1/2N3k1/1q3n1n w - - 0 1 legal: proof: e4 b5 b4 h5 a4 d5 g3 dxe4 g4 hxg4 axb5 c5 Bc4 cxb4 Be2 Nf6 Bf1 Ng8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 a5 f4 e5+ Kc4 a4 d4 g3 c3 g2 h5 g4 b6 g3 d5 b3 f5 b2 f6 Nh6 b7 Ra7 Bf4 e3 Na3 b1N Qd4 Nf5 Nc2 Na6 Ne2 g1N Rh4 Nh3 Rg4 Nc5 Rg5 Nf2 Bh3 Nh1 b8B+ Rc7 Ra2 Bb7 Rb2 Be7 Rb5 Re8 Ra5 Qd7 Ra8 Qc6 Bg4 Qb6 Bh3 Ng7 Bd7 Nf5 Qd3 Qb2 Ned4 Qa1 Nc6 Nd2+ Kb4 Nf1 Kc4 Qb1 Qd4 Ng7 Bh3 Nf5 Bg4 Kd7 d6 Ke6 d7 Bd6 d8B Rce7 Ba5 Qa2+ Kb5 Qb1+ Qb4 Kd5 Kb6 Nd4 Bd7 Nf5 Kb5 Nb3 Qc5+ Ke4 Kc4 Kf3 Qd4 Ba3 Kd5 Nc5 Bbc7 Qb2 Rc8 Kg2 Bb8 Qb1 Rd8 Re6 Rc8 R8e7 Rf8 Re8 Rh8 R6e7
b2R4/KnpQN1b1/1P4p1/p2BRR1B/3rnN2/k1P1qP2/2ppr1R1/6nn w - - 0 1 illegal: No proof kernel
r6K/pP6/Qrk2N2/6b1/1RP1npBn/p2N1PBN/Np1Rb2p/n2r2b1 w - - 0 1 illegal: No possible last move
kB6/1Np2P2/1n4N1/p6p/nrNPp3/rQ3B1R/ppPnbN1q/bR4K1 w - - 0 1 illegal: No proof kernel
3r1qR1/P6p/n2R1pP1/N3B2Q/prp5/kp1RN2B/Pqp3n1/b1RKn3 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 d5 b4 dxc4 h5 a5 b5 b6 h6 Ba6 bxa6 gxh6 Kf2 h5 Ke1 h4 g4 Kd7 e4 Kd6 d4 c5 a7 b5 g5 a4 d5 b4 g6 h3 Qf3 h2 Qb3 f3 Kd1 f2 Bh3 f1N Bg2 Ne3+ Ke1 Ne7 Nh3 N7f5 Nf2 Na6 Bh3 Nd4 Nd1 Rb8 Nd2 Bg7 Bb2 Nf3+ Ke2 Be5 Rc1 f6 Qc3 Qb6 Nb3 Ng2 Na5 Rhe8 Qd3 Rh8 Bd4 c3 Ne3 Rhf8 Rhd1 Nfe1 Qb5 Rfe8 Nc2 Rb7 Rd3 c4 Rb1 Bf4 Kd1 Bc1 Ne3 Bb2 Rc1 Ba1 e5+ Kc7 e6 Kd6 e7 h1Q Bg4 Qh6 Bh3 Rc8 e8R b3 Rg8 Qf8 Ng4 Re8 Rh8 Qc5 Rg8 Qa3 Ne3 Qb2 Bc5+ Ke5 d6 Rb6 d7 Rc8 Bd4+ Kd6 Qf5 Re8 Be5+ Kc5 d8R Kb4 Nb7 Ka3 R8d6 Rb4 Qh5 Rd8 Na5 c2+
3R3b/b1B2bBp/prp2N1B/N2nn1pP/1B3Pp1/1p1r1k2/1PR4K/1n2Q3 w - - 0 2 illegal: No proof kernel
3rR3/1q1pbkBP/QrBn1Nqp/1N3qb1/5b1r/2b4B/1KbP3P/1R1n3B w - - 0 1 illegal: Other
R6B/1Q1N2Pk/Kn2r3/bnpRbqB1/2P1b2B/p4n1n/Pn1Nr2n/1r3B2 w - - 0 1 illegal: No proof kernel
bQ1r1nb1/2n1r3/1BbBN3/nB1k1r1K/R3NP2/Rp2npb1/1P1b1P2/2B1q3 w - - 0 1 illegal: Other
2b1BR2/nN2p1rK/p2Pq3/4Pn2/PNR1N2n/1n3kB1/1n1b1nN1/1Q1rq2b w - - 0 1 illegal: No proof kernel
3b1q2/r2B3p/2N1NB2/pbqR1nRK/P2nQb2/knb4P/P1bN2b1/2r4N w - - 0 1 illegal: Other
B3q3/1n1r1Rbq/q1n1K1NB/1nR2pp1/1b2kP1q/5bP1/2N2PR1/Q1nr2R1 w - - 0 1 illegal: Other
B1QN4/1Nr4k/6n1/q1B1rPKn/bRp3pb/B1b1n1Pq/1qPb1B2/6qR w - - 0 1 illegal: No possible last move
3kb3/1p1nbb1p/1PPB1NRr/K3R1NP/7n/2nr1B2/1r1B1Qp1/B2b1b1q w - - 0 1 illegal: No proof kernel
1r1rQ3/2n2Rp1/1n3BP1/3pKBBR/2kPP1N1/1b1rbN1b/1q1B3p/b1q1b3 w - - 0 1 illegal: No proof kernel
7k/1pnpPB2/q5RB/3r4/2RP2Kr/3b1Bb1/pP1nqbQq/1bBb1NN1 w - - 0 1 illegal: Other
q1NBn2k/2r2bn1/pbPr2Q1/2N2pp1/P2R1P2/2b1Nq1b/R2nB2N/1q1K4 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 cxb6 Bh3 b5 Bf1 b4 h4 b5 f4 g5 a4 e5 d4 a6 c4 e3 h5 e2 c5 e4 c6 g3 h6 g2 d5 b3 h7 b2 d6 b4 Qd2 b3 Qc3 Nd7 Nh3 g1Q Qe5+ Ne7 Kd2 e1N Qc3 e3+ Ke2 Nf3 Qd2 Qg3 Qc2 Nf6 Qe4 Ra7 Rh2 Nd2 Nc3 b1B Kd1 b2 Nd5 Ba2 Nf2 b1Q Be2 Rc7 Qg6 Bh3 Ng4 Qf3 Rg2 Nf5 Nh2 Bc4 Ra2 Ng7 Rg1 Be7 d7+ Kf8 Rf1 Qe8 d8N Bc5 Nb7 Bb6 Nc5 Qa8 Rg1 Rg8 h8N Nfe8 Rh1 f5 Nf7 Rh8 Nd6 Kg8 Nc8 Rh6 Rg1 Kh8 Re1 Qb5 Bb2 Qb4 Bf6 Qb5 Nde7 Bf7 Nd5 Qb4 Bd8 Qb5 Kc2 Qb4 Rd1 Qb5 Bc4 e2 Ne3 e1B Be2 Qb4 Rc1 Qb1+ Kd1 Bf2 Nd5 Bd4 Ne3 Qb2 Rc4 Bc3 Qe6 Rg6 Rd4 Rf6 Qe4 Rd6 Qe6 Qb4 Qg6 Qb1#
Q1b4b/7p/1pnr1Rb1/R6r/q1BPp2P/2BNP1k1/2rBq2n/1qqB2NK w - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 f4 Kd7 Kf2 Ke6 Kg2 Kf5 d4 e5 a4 c5 h4 g5 a5 b3 a6 b2 a7 c3 e3 b6 Nd2 b1B Ra5 g3 Rh3 g4 Rh1 c2 Ba6 c4 Nb3 c3 Bc4 Nf6 Na1 Qd7 Qd2 Bg7 Bg8 Qa4 Bb2 c1Q Nc2 Nc6 Bc4 Rd8 Be2 Bh8 Ba1 Rd6 Nb4 c2 Bc3 Qe1 Rb5 c1R Nd3 Rc2 Bd1 Ke4 Rh3 Qe2+ Kh1 Kf5 Ra5 g2+ Kh2 Ke4 Rf3 Kf5 Rf2 Ke4 f5 g3+ Kh3 Ng4 f6 Nh2+ Rf5 Rb8 a8B Rb7 f7 Re7 f8B Re8 Nf3 g1Q Be7 Qh1 Ng1 g2 Bf8 Ree6 Rf6 Rd5 Bfb4 Red6+ Re6 Kf5 Bb7 Ke4 Ba6 Rc5 Bc4 Rcd5 Nf3 g1Q Qc1 Qge1 Ng1 Q1d2 Qa3 Qc1 Bd2 Kf5 Bbc3 Qe4 Nf2 Q4d3 Kg2 Rb5 Kh1 Rc5 Ne4 Kg4 Nf2+ Kg3 Rg6+ Bg4 Rg8 Ra2 Rb5 Qac2 Re8 Bc8 Qa6 Qa4 Re6 Qdc2 Rf6 Q2b2 Qb7 Bg6 Qa6 e4 Ra5 Qbb1 Nd3 Rc2 Qa8 Rh5
4N1nB/3KR3/4qqBq/1pR1Pr2/rQ1B1n2/1np1bbn1/1PPpkb2/NB6 w - - 0 1 illegal: No proof kernel
1Q2K2B/1nb3pp/6P1/rPNB2n1/p1qkBB1r/1b1q2bP/1q2R3/2R1Nq1r w - - 0 1 illegal: Other
5R2/b3p1Qp/R1Rq2br/nnp2r2/k2qPnNP/2P3RK/1Bq1q2B/1Nb5 w - - 1 3 legal: proof: g4 f5 b4 fxg4 b5 d5 b6 d4 c3 d3 Bg2 axb6 Bd5 b5 Bb3 b4 Bc2 dxc2 Kf1 Kd7 Kg2 Kc6 h4 Kb5 d4 g5 e4 b3 f4 g3 f5 g4 f6 b2 a3 Bh6 d5 Bf5 f7 Be3 f8R Bg6 d6 Ka4 d7 b5 Rf3 b4 Rf8 b3 Qe1 Nc6 Rf2 Na5 Rf7 Nf6 Nd2 b1Q Qf1 b2 Rf8 Ra6 Rh3 Nd5 Qf7 Ba7 Ngf3 c5 Nh2 Nc7 Ra2 Nb5 Qg7 Rc6 Ra1 Qa2 Nb1 Qb8 d8B Qd6 Rf6 Rf8 Bc7 Rb6 Re6 Rf5 Bb8 Qd4 Rc6 Qd6 Nd2 b1Q Bb2 Qe1 Nb1 c1B Bc7 Kb3 a4 Qe2+ Kg1 g2 Rg3 Nb7 a5 Ka4 a6 Na5 Nf3 Qc2 Kh2 Qe2 Ne5 g1N+ Rg2 Nh3 Kg3 Bb8 a7 Nf4 a8R Ba7 Rf8 Qc2 Kh2 g3+ Kg1 Nh5 Ng4 Nf4 Kh1 Ra6 Rg1 g2+ Kh2 Nd3+ Kh3 Qe2 Rf1 g1Q Rf3 Qgd4 Rg3 Q6d5 Bf4 Qd6 Rg2 Rb6 Bh2 Qc2 Rg3 Qe2 Ba3 Qac2 Bb2+ Kb3 Rg2 Q6d5 Be5 Bf7 Bb8 Nc4 Ra6 Na5 Rf6 Ka4 Bh2 Be8 R6f7 Rh6 Rff6 Bg6 Rfc6 Qd6 Rg3 Nf4#
1B2k3/1r1R2b1/2P2nqp/K2Bbb2/q3pnRR/3nNp2/2QRP2P/rN4nr w - - 0 1 illegal: No possible last move, all moves rejected
b2Brb1n/2p1N2b/4rQ1P/2R1Nq1B/2b1N2N/pbR1np2/P1nK1P1n/k7 w - - 0 1 illegal: No proof kernel
6Bk/1b2B3/Q1Nn2p1/3RRB1p/rB1b2rb/1nK4P/p1b1P1PN/2qqn1n1 w - - 0 1 illegal: No proof kernel forced: bxLB
1b3n2/k2p1NbK/1Rq5/rpB5/2bQBq2/qP1P1b1P/NRp3rn/3Rq1R1 w - - 0 1 illegal: No proof kernel
R2B2N1/1n4N1/p1r5/2N1n2Q/b1pKpr2/qq1b2Rn/PPPNBnbk/2b5 w - - 0 1 illegal: No proof kernel
4N2n/bNp1nb2/Bprp2P1/1qP1R3/pB1QN2N/1r3bK1/Rq1P1r2/n5k1 w - - 0 1 illegal: No proof kernel
1r1B1K2/3n1p1b/npN3pp/1Pb1qk2/qNR1r1bP/2NQ1q2/R4P1N/n1B5 w - - 2 3 illegal: No possible last move
3R1nRN/N2P4/p1B2n2/BpnKb3/pB1pQ3/3P1rr1/P1rrr1bq/1k2B3 w - - 0 1 illegal: Other
2BN2kr/1N1b4/1r3Bp1/2nbpPqp/Q4p2/2nbPrNP/N2K1R2/b1b4R w - - 0 1 illegal: No proof kernel
1K4QB/p4n2/n2R4/brp2BN1/2r2n2/PPrbpNpr/r1k1B1Pq/B6R w - - 0 1 illegal: No possible last move
1nB5/Kb1rq3/1b2B2b/1p2B1B1/RQpnkpPr/2PN2R1/3p1P1N/1r1n2b1 w - - 0 1 illegal: No proof kernel
1B1nb1q1/pkrPQ3/1B2pp2/3N1rR1/npB1Bb2/1PNK1PnR/8/q2nn3 w - - 0 1 illegal: No proof kernel
3r1q2/bp1Rb1Qn/n1qp1B2/1N4p1/BP1rbbP1/2R3r1/1p1P2KB/kB1N4 w - - 0 3 illegal: No proof kernel
1b3R1Q/1nk2rp1/3nbB1R/1p1b2N1/Bq3pNp/1PqBP1P1/r1n1n2K/B7 w - - 0 1 illegal: No proof kernel
rNnb4/p1BN2RB/1q4p1/2p2P2/3qQR1p/3N4/P1PKNr1k/r1rb1n1q w - - 0 1 illegal: No proof kernel
B3B1n1/1b1Pr2p/2K1n1p1/7R/3rp2B/1NRNkqPp/1br1BbrP/2b2Q2 w - - 0 1 illegal: No proof kernel
Rr1rNB2/1P2Qprp/2b1pb1P/pk1n3R/8/3n1B1R/nnKRP3/rq3N2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 gxf6 Bf4 f5 Bc1 f4 Kd2 a5 h4 d5 b4 Kd7 g4 Kc6 c4 e6 c5 a3 h5 f3 g5 a2 g6 f2 g7 d3 h6 d4 Ba3 Kb5 c6 Bb7 c7 Nc6 c8R Nf6 g8R Nd5 Nh3 Be7 Rg5 Bf6 Rh5 Rb8 Ng5 Ne5 R1h3 Bc6 Bg2 f1R Ne4 Rg1 Bf3 Rg7 Kc1 d2+ Kc2 Nd3 Nd6+ Ka4 Ne8 Kb5 Qg1 d1N Qg5 Nc3 Nd2 Qd6 Rg1 a1R Rd1 Qg3 Nf1 Na2 Rd2 Qe1 Rd8 Rb7 Ra8 Rb8 Qh4 Kc4 b5 N3f4 b6 Be7 b7 d3+ Kb2 Kb5 Rc2 d2 Nf6 Rhd8 Ne8 d1N+ Kb3 Bg5 Bf8 Nb2 Rd2 Nfd3 Kc2 Be7 Qd4 Bf6 Qc5+ Ka4 Qa3+ Kb5 Qe7 Qb1+
1N1nr2r/1Np4B/2Pp2r1/N3p1P1/q1pP1p1Q/Kn1k4/1Bb1R2N/4qRbq w - - 0 1 illegal: No proof kernel
8/1prN1r1P/K1N1pr1B/3NP2p/nQ1q2k1/pn1p2b1/Bn1PR1b1/N2R3n w - - 0 1 illegal: Other
2r5/bk1BQpp1/2N1pR2/3pBr2/BKnPP1b1/1nn2P1B/p1b3N1/2b2q1R w - - 2 3 illegal: No proof kernel
2N2n2/n1qb1p1B/2b1kP2/1nB1PpKQ/r1pB1bN1/2R2p1p/1RP4B/r5b1 w - - 0 1 illegal: No proof kernel
1r1RR1Q1/1k1rP1K1/p2pb2B/1n1q3p/P4nbp/1p1P1b2/1N1N1n2/B1b2BB1 w - - 0 1 illegal: No proof kernel
1b2b3/q1Pk1BpR/p2r1prn/1R1p1PN1/2r4B/K1n1QqR1/3P2p1/1N1rR3 w - - 0 1 illegal: No proof kernel
2q1B3/1Nn2R2/N2pr2b/1qNQ3p/1rp1pnp1/1p1P1b1P/3kPB2/RK1N1b2 w - - 0 3 legal: proof: c4 b5 g4 a5 b4 axb4 g5 Ra3 c5 Rc3 g6 Rc2 c6 fxg6 Nh3 g5 Ng1 g4 Nf3 Nxc6 Ng1 Nb8 a4 Kf7 f4 Kg6 a5 Kf5 a6 Ke4 a7 g5 a8N h5 f5 e5 f6 c5 f7 b3 Nc7 g3 Ra4+ b4 Ra1 b2 Na8 b3 Nf3 d6 Rg1 g2 Nc7 Rh6 Nd4 Na6 Nc6 Re6 Na5 Ne7 Nb7 Bh6 f8N Nd5 Nd7 Rc4 Nc3+ Kd4 Rh1 b1B h3 g1Q Rh2 g4 Rf2 Rb4 Rf7 c4 Ndc5 Be4 d3 Nf4 Kd2 Bd7 Bg2 Bf3 Ba3 Ba4 Kc1 Ke3 Kb1 Bac6 Bb2 Qh2 Qh1 Kd2 Nd1 Qc8 Bd4 Qg3 Bf2 Qh4 Qh2 Qg5 Qg3 Bcd5 Qh4 Qf5 Qg5 Bc6 Bh1 Bg2 Qg8 Bf1 Be4 Qg5 Bf5 Bf3 Bg6 Nb8 N7a6 e4 Rh7 Qd5 Be8 Qdc6 Rf7 Qb5 Nc7 Na6 Qg5 Rg6 Qd5 Rf6 N7e6 Nc7 Na6 Rg6 Nec5 Re6
1q2q2r/b1b1QB2/3Bn1n1/8/nn4R1/1PPR1R1P/n1N1Q3/n2QK2k w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b3 a5 Na3 a4 Nc4 a3 Nb2 Ra6 bxa6 Bb7 axb7 axb2 f4 Kf7 f6 Kg6 h3 Kf5 f7 Ke4 f5 b1N f6 d5 Rh2 e5 Nf3 g5 Be3 g3 Ra6 g4 Ke2 g2 Ra3 g1N+ Ke1 d3 Rf2 d4 Ra5 g3 Be2 g2 Ra3 Nc3 Bd2 Nc6 b8R Na2 c3 Nge7 Rf1 Qe8 Be3 d2+ Kf2 d3 Qb1 d1N+ Ke1 Nb2 Kd2 Ncb4 Ra5 Na4 Qa1 Ng6 Qb2 Bd6 f8Q Bc7 Ne1 Nf3+ Kd1 g1B f7 d2 Qe7 Nd4 f8Q Bf2 Rd5 Ne6 Bf4 Ba7 Rb6 Qb8 Bc4 Qe8 Ke2 d1Q+ Kf2 Qg4 Nc2 Qg3+ Ke2 Qh2+ Ke1 Qg3+ Rf2 Qh2 Rg2 Kf3 Rg4 e4 Rd3+ e3 Bd6+ Qf4 Qh6 Qff8 Rb7 Qb8 Qh5 Qfe8 Rh4+ Kg2 Qd1 e2 Rg4+ Kh1 Rb5 Nef8 Bf7 Ne6 Rf5 Rh4 Kd2+ e1N Ke2 Rh8 Kf1 Ng2 Rff3 Ne3+ Ke1 Ne5 Nd4 Ng6 Qbe2 Nec2+ Kf1 Na1 Ke1 Rh4 Nc2 Rh8
4BBN1/R2Qr2K/p4rn1/q1B5/4Q1r1/2r1PbkP/4P3/1n1bRRbr w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 bxa4 b4 c5 g4 h5 b5 a3 Qa4 hxg4 Qb3 e5 Nc3 e4 Qd1 e3 fxe3 Kd7 Ne4 Ke8 Nxc5 Qg5 Ne6 Qf6 Nd8 Qxd8 Kf2 Ke7 Kg3 Kf6 Kf4 g5+ Ke4 g3 d4 g2 h3 a2 b6 g4 d6 Kg5 d7 Kh4 Kf5 a6 b7 g3 d5 Qa5 Bd2 Bd6 Qe1 Ra7 Bc3 Nc6 b8B Nd4+ Ke4 f5+ Kd3 f4 Ke4 f3 d8Q+ Ne7 Bb4 f2 Qd7 Nb3 Qb1 Rh6 Bc5 Ng6 Kf5 Nd2 Qe4+ Bf4 d6 Nb1 Bc7 Bb7 Kf6 Bd5 Kg7 Bb3 Bb8 Bd1 Nf3+ Kh5 Kg8 g1R Ng5 Kh4 Bg2 f1B Nh7 Rc7 Bf3 g2 Nf6 Kg3 Bh5 Rh7 Bba7 Re7 Ba3 Rc3 B7c5 Nh8 Bf7 Ng6 Kh7 Be5 Ng8 Bf4 Rh2 Rh1 Bab4 g1R Rf2 Bg2 Rf1 Bf3 Ba3 Nd2 Rc1 a1R Bab4 Bb3 Rce1 Bd1 Ba3 Nb1 Bab4 Re5 Be8 Re6 Ba3 Re7+ Bf7 Kh4 Qd8 Bb3 d7 Rg4 Rf2 Nd2 Rc1 Bh2 Bd6 Bg2 Bac5 Bg1 Rf3 Rb1 Rff1 Bf3 Rce1 Bd1 Qc7 Rb7 d8R Re6 Bf8 Re7 Ra8 Rb6 Ra7 Rf6 Qcc6 Nb1 Qd7 Ree6 Be8 Kg3 Qf5 Re5 Qe4 Re7+
3rbb1K/r2P1q2/rP4n1/1b1Qb1q1/8/NQn1RBp1/4RP2/Q1RB2k1 w - - 0 1 illegal: No possible last move
1QrRq3/Rn1b4/2N2RB1/nB2BQ2/2K4n/qp4nr/P1P1P3/qr2k3 w - - 0 1 illegal: No possible last move
3k1NB1/3p3B/1r1q2r1/nP4r1/1PN1N2Q/P6K/1npqbQ1R/2Q1q2b w - - 0 1 legal: proof: h4 b5 c4 c5 d4 f5 e4 g5 exf5 gxh4 a3 b4 Bf4 b3 Be5 Bh6 Bc7 Be3 Bb6 axb6 Ra2 b5 cxb5 bxa2 b3 a1Q b4 c4 Bd3 Bf4 Be2 Bd6 Bf1 Bc5 dxc5 Ba6 Qc1 Bb7 Qd1 Bc8 g4 h5 f4 e5 Kf2 h3 Kg3 h2 f6 e4 c6 e3 g5 c3 g6 e2 c7 e1Q+ Kg2 c2 f5 Qd4 g7 h4 Qd2 h3+ Kf3 Ne7 Qc1 Na6 g8B Rb8 Nc3 Nc5 Bfc4 Rb6 Bd3 Nc6 f7+ Ke7 Be4 Na4 Kg4 Qf8 Nf3 Na5 Ne5 Bb7 c8Q Qdd2 Qc4 Kd8 f6 Rh5 Bd3 Qc5 Bdh7 Qcd6 Qf4 Rf5 Nc4 Nb2 Qg5 Be4 Qh4 Bd3 Ne4 Re5 f8N Rd5 Ng6 Rf5 f7+ Rf6 Rg1 h1R Rg2 h2 Kh3 Rg1 Rf2 h1B Rh2 Be2 f8Q+ Kc7 Qf7 Rg5 Nf8 Rfg6 Qff2 Kd8
Q4B1q/N3K3/4pBbP/2rQP3/kp2qP1r/nbn5/4NN2/bB4Rb w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 c5 d4 d5 cxd5 h5 dxc5 Rh7 Qc2 Rh8 Qh7 f5 a4 h4 Ra3 h3 g4 fxg4 Rf3 gxf3 Bxh3 Qb6 Bf1 Qd8 Kf2 Kd7 Kg3 b5 Kg4 g5 Kf5 g4 h4 g3 e4 f2 h5 g2 d6 Kc6+ d7 e6+ Ke5 b3 a5 b2 a6 b4 a7 Ne7 Kf6 Nd5+ Kf7 Na6 Nd2 b1B Qf5 Bb7 Bb2 Nac7 Bf6 Rc8 a8Q Nb5 Bd3 f1B Ne2 Na3 Rg1 Bg7 Be7 Bb2 Bf8 Nc3 e5 Qh4 d8B Ba1 Bf6 Qe1 Be4+ Kb5 c6 Ba2 c7 Bb3 Bb1 Rh6 Qb8 Ka4 Qd3 Be4 Ke7 Bg6 Qd5 Rh8 Rh1 g1Q Ne4 Qh2 Rg1 Bg2 Nf2 Bh1 Qbb7 Qd2 Qb8 Qd3 Qbb7 Qe4 Qb8 Rd8 c8N Rd6 Na7 Rc6 Qa8 Rc5 Bh6 Rb8 Bf8 Rd8 Qc4 Rd3 Qcd5 Rh3 B8g7 Rh4 Bf8 Qg3 h6 Qgd3 Rg5 Qb5 Rg1 Qb8 B8g7 Qg8 Bf8 Qh8
1qr2b1B/4Q2q/Q3RqpR/1N3n1Q/Pn2p1n1/N1P4N/2P2K1k/q6q w - - 0 1 legal: proof: e4 f5 b4 a5 Nc3 axb4 Nb1 c5 Bb2 c4 Bc1 c3 dxc3 Ra7 Nh3 Ra6 Ng1 Ra8 a3 fxe4 Bc4 Ra4 Ba2 Ra8 f4 b3 f5 bxa2 g3 Ra5 g4 Ra8 h4 b5 h5 e5 h6 g6 Nh3 Bb7 Ng1 Bd5 f6 Be6 Ke2 Bf5 gxf5 Ra6 Ke1 Re6 Qf3 Re7 Qd1 Rg7 hxg7 Qb6 Qf3 Qc7 Qd1 Qd8 a4 Kf7 Rh2 h5 Ba3 d5 Qf3 h4 Ne2 d4 Nc1 h3 Nd2 b4 Qd1 b3 Kf1 e3 Ke2 d3+ Ke1 e2 Kf2 b2 Bd6 b1Q Nc4 d2 Na3 Ne7 Nb3 Nbc6 Nd4 Qbb8 Ndb5 Nb4 g8N e1N Qh5 Nf3 Re1 d1Q Bc5 a1Q Bd4 Qdd6 Re3 Qh1 Nh6+ Ke8 f7+ Kd7 f6 Ke6 Ng4 Nf5 Rg2 h2 Re1 Be7 f8Q Qdb6 Qg7 Rc8 f7 Bf8 Qf6+ Kd5 Qe7 Qf6 Qa7 Ke6 Rg3 Kd5 Rh3 Ke6 Qa6+ Kd5 Rc1 Ke4 Re1+ Kf4 Re2 Ne1 Ree3 Ng2 Re1 Nge3 Re2 Bc5 f8Q Bd6 Qe8 Bf8 Qe7 Qhb7 Nh6 h1Q Nf7 Q7a7 Ng5 Qd7 Qhh7 Qdc7 Rh6 Kg4 Nh3 e4 Rd2 Qca7 Be5 Qab7 Rd6 Qd7 Re6 Qdb7 Ke2 Q7c7 Bd4 Kg3 Qh8 Kh2 Kf2 Qca7 Qhh7 Qf7 Bh8 Qf6 Qd8 Qag7 Qd1 Qg8 Qe7 Qh7 Qh5 Ng4+
5b2/1bBR1p1r/1P1QR3/QBb2Kr1/7k/1qnRPb2/3pBPbp/5N2 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 bxc5 e5 h4 gxh4 c4 Bb7 d4 Be4 Na3 Bb1 Nc2 exd4 b6 Na6 Nb4 Nc7 Na2 Nb5 cxb5 Bg6 Nc3 Bf5 Nb1 Bxb1 Kd2 Ke7 g4 Kf6 e3 Kg5 c6 a5 b7 h5 b8Q d5 b6 d3 c7 h3 c8R h2 Qb7 d4 Qd5+ Kh4 g5 a4 g6 a3 g7 a2 Rb8 Nf6 g8B Ra5 Ba3 Rh7 Rb7 Qc7 Qc5 Nd5 Ne2 Nc3 Ng3 Qd7 Qf5 Qb5 Bd6 Qb3 Rd7 Bc2 Rg1 h1B Bc7 Bg2 Be2 Rc5 Rb1 a1B Nf1 Bb2 Qe5 Ba3 Qe1 Rb5 Qd6 Rg5 Rd1 Bb7 Rg3 Bc5 Rf3 Bb1 Rf6 Bc2 Re6 Bg2 Ra1 Bd1 Ra3 Bb7 Bg4 Bdf3 Qa1 Bg2 Be2 Qc4 Rb3 Qd5 Qa5 Qc4 Kc1 d2+ Kc2 d1B+ Kd2 d3 Ra3 Rhg7 Bh7 Qb3 Be4 Rh7 Bc6 Qb4 Bb5 Qa4 Bg4 Bdf3 Rb3 Bfc6 Be2 Bcf3 Kc1 d2+ Kc2 Qb4 Ra3 Qb3+ Kd3 Kg4 Ree7 h4 Re6 Bb4 Kd4 h3 Kd3 h2 Kd4 Rg6 Ke5 Kh4 Kf5 Rg4 Ra4 Ba3 Rd4 Bc5 Rd3 Rg5+
nkr1B3/1r2p2n/PpQ1Q3/2N3p1/RRb2n1P/r1P1QB2/1RKq4/5n2 w - - 0 1 legal: proof: d4 f5 a4 c5 dxc5 a5 e4 Nf6 g3 Ng8 b4 axb4 Ba3 bxa3 exf5 Ra6 Ra2 Ra7 Ra1 Ra8 f4 g6 f6 Bh6 Nd2 Bg5 f5 Bf4 Ne4 h6 Ng5 hxg5 gxf4 g4 Kd2 d5 h4 Kd7 c6+ Kc7 f7 b6 f8Q g3 f6 a2 f5 g2 c3 d4 f7 g5 a5 d3 a6 Rh7 f6 Qd5 Qe8 Rh5 f8Q Nd7 f7 Kb8 Qe1 Ngf6 Qe3 Ra7 Nf3 g1N Rh2 Rh8 Qg8 Ne2 f8R Nc5 Ne5 Ne6 Bg2 Nh7 Rf4 Nc7 Bf3 Na8 Rb4 Nf4 Kc1 Qd6 Rhb2 d2+ Kc2 Rb7 Nd3 Qd8 Qgf7 Be6 Nc5 Bc4 Qfe6 Rg8 Q3e4 d1N c7+ Ka7 c8B Kb8 Q8c6 Ne3+ Kc1 Re8 Bd7 Nf1 Kc2 Rh8 Qe3 Rf8 Rab1 a1R Ra2 Rg8 Raa4 Ra3 R1b2 Rh8 Be8 Qd6 Beh5 Rc8 Be8 Qd2+
5R1R/PQp1KRp1/3b1B2/rBrQ1b2/4q1q1/P3P3/2B1bp2/N1b1kb2 w - - 0 1 legal: proof: d4 a5 f4 d5 b4 e5 bxa5 exf4 c4 dxc4 d5 b6 d6 Nc6 d7+ Ke7 Kd2 Bb7 Ke1 Ba6 g4 f5 Bh3 f3 Nd2 f4 Bf1 Nh6 Ne4 Nf5 gxf5 h5 Nf2 Na7 Ng4 Nc8 dxc8B hxg4 Qd2 Kf7 Qd1 Ke8 Kf2 Ke7 h4 Kf6 a3 Ke5 h5 Ke4 h6 b5 f6 b4 f7 c3 h7 c2 e3 b3 Bb5 b2 Ne2 b1B Nd4 Qe7 Bb2 c1B Nc2 Qe6 Rh3 Bd6 Bf6 Be5 f8R Qc4 Qh1 Kd3 Bf5+ Kd2 Ra2 Qe4 Na1+ Bc2 Rf7 Rhd8 h8Q Rd5 Qc8 Rc5 Qb7 Ra7 Rh8 g3+ Kf1 g2+ Kf2 Ra8 Rb2 Ra7 Rb1 Bd3 Qd5 Bc8 a6 Ra8 Bg6 Bf5 Qb7 Be2 a7 Re8 Rhf8 Re6 Qh5 Ra6 Rb4 Ra5 Rd4+ Qd3 Rdd8 Qd5 Rc8 Qe4 Rh8 Kd1 Rcf8 Kd2 Kg1 f2+ Kh2 f1B Bh7 Bg6 Kh3 Bf5+ Kh4 f3+ Kg5 f2 Qf3 Qd3 Qfd5 Ke1 Bg6 Qe4 Bh7 Bfg4 Bf5 g1Q Kg6 Qf3 Bc2 Qgg2 Rd7 Qe4+ Kf7 Bf5 Ke8 Qeg4 Rdf7 Q2e4 Ke7 Bd6+
3bb1KN/5p1R/1RpQ2pP/2r4P/6BP/N2qr1R1/2bpbk2/n1N4Q w - - 0 1 legal: proof: c4 d5 d4 a5 b4 axb4 g4 h5 gxh5 Qd7 f3 Qg4 fxg4 Nd7 Bg5 Ndf6 h6 Nh5 gxh5 dxc4 d5 e6 Be3 e5 Bd4 exd4 Kd2 Ke7 a4 Kf6 e4 Kg5 h4+ Kf4 e5 Kg3 e6 b5 e7 b3 e8N c6 a5 d3 Kc3 b2 Kd4 d2 Ke5 c3 d6 c2 a6 c1Q d7 b4 d8Q b3 a7 Be7 Nf6 Bd7 Be2 Qc4 Rh3+ Kf2 Na3 b1B Nh7 b2 Bg4 Bd3 Rg3 b1B Nf8 Be8 Ne2 Bbc2 Qh1 Nf6 Nc1 Nd5 Ng6 Be2 Qd6 Nb4 Rb1 Qd3 Rb3 Rb8 a8R Bd8 Rb2 Rg8 Nh8 g6 Rb1 Bc7 Kf6 Rb5 Rb3 Rf8 Kg7 Rc5 Rb2 Bd8 Rc8 Nd5 Rb6 Nb4 Ra8 Bd7 Kh7 Re8 Rab8 Re3 Kg7 Be7 Rg8 Bd8 Kh7 Be8 Rg7 Bb1 Kg8 Nc2 Rh7 Na1 Qd4 Bc2 Qb4 Rg5 Qd6 Rc5
2Qn1B1R/2pP1q1Q/1pRBN3/n4p2/p2P3P/b2rp3/kp6/4bKBR w - - 0 1 illegal: No proof kernel
B3B3/4Q3/1R2P2q/1KNb1r1b/qQRr1b1r/2Rn1P1q/1P1nB3/q2qk3 w - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 e5 a4 c5 axb5 cxd4 e4 d3 Be3 d2+ Ke2 f6 Bd4 exd4 e5 f5 Nc3 Qe7 Ne4 fxe4 Rc1 Qf6 Ra1 Qd8 g4 Kf7 c4 Ke6 c5 Kd5 g6 Kc4 e6 d5 g5 h5 g7 a5 b6 d3+ Ke3 a4 b7 d4+ Kf4 a3 Ke5 e3 c6 e2 g6 e1R+ Ne2 a2 c7 h4 Ke4 h3 Rb1 a1Q Rh2 Nd7 b8R Qh4+ Kf5 Ngf6 g8Q Bd6 g7 Ne5 Qh7 Ra5 g8B Bb7 c8B Qh6 Qf7 Bd5 Nf4 Re4 Rg2 h2 Rg3 h1Q Qg4 d1Q Be2 Q1h3 Bb7 Qda4 Qe7 Kb3 Re1 Kc2 Ba8 d2 Rb6 d1B Bf7 Kd2 Rc3 d3 Be8 Rd4 Rc4 Ne4 f3 Bc2 Rg1 Rc5 Rg2 Ke1 Rf2 d2 Rc3 d1Q Nd3+ Kd2 Rc4 Ra5 Nc5 Ke1 Rc3 Nd3 Rh2 Qg3 Rh4 Nd2 Qf4 Bc7 Qfd6 Qh3+ Rg4 Nc1+ Ke5 Bg6 Re4 Bh5 Rf4 Rb4 Rfc4 Nd3+ Kd4 Rh7 Qdd7 Bf4 Qb5 Ra7 Qa5 Rb5 Qb4 Rba5 Qd6 Raf7 Qe7 Rf5 Rb5 Ra7 Rb6 Rd7 Qb5 Rg7 Ne4 Rg4 Qb3 Rh4 Qbb4 Ne5 Kc5 Bb7 Rc6 Rd4 Rb6 Qab3 Kb5 Nd3+ Nc5 Bd5 Rc6 Qbc2 Rb6 Qca4+
Q1qnr1B1/2k4N/2b4N/1bP1b2K/b1QQb2b/1r1R1RrP/6P1/2bnR3 w - - 0 1 legal: proof: e4 f5 f4 b5 a4 h5 axb5 c5 d4 cxd4 Qxh5+ g6 Qh7 fxe4 f5 g5 Bf4 gxf4 Ke2 d5 b4 Kd7 c4 a5 h3 e3 Kf3 d3 Kg4 d4 f6 f3 c5 f2 b6 e2 b7 e1B b5 a4 f7 e5 b6 a3 Qh5 a2 Nd2 e4 Ndf3 d2 Qh7 d1B Qh5 d3 Rc1 a1B Qh6 d2 Qe3 Bh6 f8R Bc2 Ng5 d1B+ Qe2 e3 Ne6 Be4 Rc3 Ra3 Rf6 Ne7 Rf3 Re8 Qd3+ Nd5 Qc4 e2 Qd4 Ba4 Ng5 Nc6 b8Q Rb3 Rcd3 Bb7 Kh5 Qc8 Nf7 Bc1 Qa8 Nd8 Nh6 Bbc6 b7 Kc7 Qa6 Rg8 Qac4 Rg3 b8Q+ Kd7 Qa8 Kc7 Rfe3 Nc3 Nf3 Nd1 Ng5 Bac3 Rf3 Ba1 Qe3 Be5 Nh7 Bb4 Rd5 e1R Rd3 Bbd2 Qed4 Bg5 Rg1 Re3 Be2 Bh4 Re1 f1B Rf8 Bb2 Bg4 Bc1 Be6 Rg8 Rf5 Re8 Bg8 Rg3 Rc3 Bfd3 Rf3 Bc2 Rcd3 Bcb5 Rde3 Bec6 Rc3 Bf5 Rcd3 Bfe4
r6N/n2k3P/q5BQ/2n4r/3nqB1P/Rr3bKb/B2QRRPr/q5b1 w - - 0 1 legal: proof: f4 g5 fxg5 a5 b4 axb4 d4 c5 d5 h6 gxh6 c4 Nd2 e6 Ndf3 exd5 Ne5 d4 Nd3 cxd3 Kf2 f5 c4 b5 e4 d5 h4 d2 a4 d3 c5 d4 a5 b3 a6 b2 c6 b1Q c7 b4 e5 f4 a7 b3 e6 b2 e7 f3 Rh3 Nc6 Kg3 f2 Rh1 Nf6 Qe2 d1R Kf4 d2 Qe1 d3 Rh3 Kd7 e8R Ne4 Rf3 Bc5 Rf8 Qe8 Ne2 Nd4 Ra3 Qa1 Re3 b1R Kg4 Rb6 Nf4 Rb3 Ng6 Bb6 Kh3 Nc5 Kg3 Qe4 Qe2 Rh7 Nh8 Re1 Rf4 d1B Qd2 Bf3 Be2 f1Q Rf6 Re7 h7 Re5 Bd1 Rh5 Bc2 Rd1 Re2 Re1 Qh6 d2 Bd3 d1N Bf4 Nc3 Bc2 Rb8 a8Q Ncb5 Qa5 Na7 Qd2 Ra8 Bb1 Rc1 Ba2 Rd1 Re6 Rc1 Rf2 Qa6 Re5 Rh1 Re8 Bb7 Re5 Rh2 c8B+ Kc7 Be6 Bc8 Bf7 Bh3 Bg6 Kd7 Re6 Qc6 Re3 Qe4 Ree2 Na4 Qc1 Ne6 Rf1 Bg1 Rff2 Nac5 Qd2+ Nd4
k1rn4/1n1P4/nQ2qN1r/1n2B2Q/2R5/bb1nPnPr/K1BN2B1/1Q3b2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 dxc4 Ra3 exf4 Rb3 Qf6 axb5 Ne7 b6 Ng8 b5 Qd8 Rb4 axb4 d4 Kd7 Kd2 c5 Kc2 f5 Kb2 h5 g3 f3 g6 f2 e3 f4 d5 b3 g7 h4 d6 f3 b7 h3 b6 Kc6 Qe1 h2 Qe2 Na6 b8Q c3+ Ka1 c4 b7 c2 Bd2 c1N Na3 b2+ Kb1 c3 Be1 Bd7 Bg2 f1N Qa7 Nb3 b8Q c2+ Ka2 b1N Bd2 c1N+ Kb2 Nd3+ Ka2 Rh3 Ba5 Nfd2 Qe1 Nh6 g8B Nf7 Ne2 Qe8 Qb4 Qe6 Nc4 Nbc5 Nc3 Rc8 Nd5 f2 Qd1 f1B Nf6+ Nf3 Bh7 Nd8 Bc7 Na3 Qbb1 Ncb7 Rg1 h1R Qd4 Nf4 Bc2 Nd3 Qe2 Nb5 Bb8 Qg4 Nd2 R1h2 Qdb2 Qe6+ Qb3 Kb6 Rh1 Bc6 d7 Ba3 Be5 Ka7 Qed1 Rh6 Qe2 R2h5 Rh4 Ka8 Rc4 Rh3 Qb4 N5d6 Qed1 Ba4 Qb6 Nb5 Qe2 Nfd4 Qg4 Nf3 Qh5 Bb3+
3b3R/2Qb2bR/1K1P3N/2b4N/3bkbQr/nR4Qn/1P1P3q/B1q2b1r w - - 0 1 illegal: Other
1b3B1N/3PBQP1/q3bRB1/r2r1n1r/qN1kP3/q1n2q1Q/2rK4/5Qr1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 d4 Kd7 g4 Kd6 e4 f5 b7 c5 b6 h5 g5 f3 g6 f2+ Kd2 b3 g7 c4 Qe2 c3+ Ke3 c2 Bb2 c1R Ba1 h3 Na3 h4 Qd3 f4+ Ke2 f3+ Ke3 h2 Nh3 b2 Qb1 Qe8 Bd3 f1Q Ng5 f2 Be2 h3 Nc2 Qa4 Bh5 Ra5 Kd2 Nf6 Nb4 Qa6 Rf1 h1R Bg6 h2 Qa2 b1Q Bc3 Nc6 b8Q+ Ke7 b7 Qbb3 Qa1 Be6 Qa7 Rh5 Nf7 Qba3 Nh8 Rg1 d6+ Kd7 d5 h1R Qe3 Ne7 b8Q Nf5 Qh3 Rgg5 Bd4 Rhg1 Bc5 Be7 Qa8 Bd8 Qa2 Bc7 Qf8 Bb8 Qc4 Ng8 Qf7+ Nge7 Rd1 f1Q Qcd3 Qf3 Rf1 Kd8 d7 Kc7 d6+ Kb7 Rf2 Nd5 Qdf1 Nc3 d8B+ Bc7 d7 Bb8 Nd3 Kc6 Bde7 Kb5 Bf8 Kc4 Bce7 Kd4 Nb4 Nh6 Rg2 Rgd5 Rg4 Nf5 Rf4 Ng3 Rf6 Nf5 Qb5 Bg3 Qe2 Bb8 Qef1 Rc2+
Qq3RK1/4b2N/1P1PnB1P/Q5n1/2N1r1n1/2br2Nr/1b3krn/q2RR3 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 h5 Kf2 f5 Ke1 f3 Bg2 f4 Bh3 Bf5 gxf5 Qd5 Bg4 hxg4 Kf2 Qd6 Ke1 Qd8 Kf2 Kf7 d4 Kf6 e4 Kg5 b4 Kh4 b6 c5 h3 a5 d5 g5 b7 c3 f6 c2 d6 c4 e5 c3 b5 g3+ Ke1 f2+ Ke2 f1R Kd3 g2 Kd4 Kg3 Kd5 g4 Ke6 a4 Kf7 f3 e6 f2 e7 a3 e8Q a2 h4 Nh6+ Ke6 Na6 b8R Re1+ Qe2 f1N b6 Nc5+ Ke5 Ne6 h5 Be7 f7 Nh2 f8N Ra3 Rb7 Qb8 Qe4 Kf2 Bg5 c1B Ne2 g1N Qb4 c2 Nh7 g3 Qa5 g2 Nd2 Nh3 Nc4 g1R Bf6 Bd2 Rd1 a1Q+ Kd5 c1B Ng3 N6g4 h6 Ree3 Qd8 Rg2 Rhe1 Bc3 Ra7 Rb3 Ra8 B1b2 Qe8 Nhg5 Qc6 Qb7 Rf8 Qb8 Qca8 Rd3+ Kc6 Rg8 Kd7 Qb7+ Ke8 Rb4 Na3 Re4 Nc4 Rg6 Bg7+ Rf6 Bh8 Rff3 Bf6 Nh3 Kf7 Nhg5+ Kg8 Qb8 Nf1 Rh3 Ng3 Rde3 Nh5 Ref3 Ng3 Rd3
RrRK2kq/8/1PP3B1/1r1q4/nnQ4Q/b1rbPn1B/2qq3N/1n2BQ2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 Nc3 exf4 Nd5 Bc5 axb5 Nh6 b6 Ng8 b5 Bf8 Nb4 axb4 Kf2 h5 Kf3 d5 g4 f5 c4 Kf7 c5 d3 c6 d2 e3 b3 b7 b2 b6 b1N Bg2 d4 Ra4 h4 Ra7 h3 Ba3 h2 Bf1 d3 Ra4 Ne7 g6+ Kg8 g7 Qd5+ Re4 Ra5 g5 Nd7 b8Q Rb5 Bh3 Ba6 Bg2 Nc5 Qd8 Na4 Qf1 d1R Bb4 d2 Ba5 Rc1 Bh3 Rc3 Bb4 Qe5 Ba5 Nd5 Qf6 Qb8 Re8 Nb4 Rc8 Qd6 Qh6 Qd8 Qh4 d1Q+ Qe2 Qc1 Qf1 Qdd2 Ra8 Qcc2 Rc8 Kf7 g8B+ Kg7 Ba2 Be7 Ra8 Rb8 Bf7 Bd6 Bh5 Kg8 g6 Bf8 g7 Be7 Ne2 Bf8 Rg1 h1Q+ Rg2 Qh2 Rg6 Bc5 Ng3 Be7 Re6 Qd5+ Re4 Qhd2 Bg6 Bc5 Qf2 Be7 Nf1 Bf8 Nh2 Be7 Kg2 f3+ Kg3 f4+ Kg4 Bc5 Qf1 f2 Re7 f3 Rc7 Bd6 Rc8+ Bf8 Qd3 f1Q Qc4 Qh1 Qf1 f2 Kf4 Qd8 Kg4 Bc5 Kf4 Qf3+ Ke5 Qh5+ Ke6 Qh8 Qfc4 f1N Qd3 Qf8 Kd7 Bd6 Qf5 Qd5 Qff4 Nfd2 Qf1 Nf3 Qd3 Na2 Qf1 Ba3+ Kc7 Rcb3 Bd2 Nb4 Be1 Rc3 Be8 Qda2 Kd8 Qc5 Bg6 Qcd5+ Bd7 Qcd2 Bf5 Ra5 Bg6 Bd3 Qh1 Qac2 Qf1 Qdh5 Bh3 Rb5 Be8 Kh7 g8Q+ Kh6 Qd5 Kg7 Qdc4 Kf8 Bg6 Q5e5 Qc5+ Kg8 Qcc4+ Qd5+
B1n3q1/2k2P1R/1nbN2P1/5b1K/b4br1/B1nRbq1B/1P4R1/b1Qb1Q2 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 h4 f6 e4 Ra6 f4 Rb6 d5 cxd5 f5 Ra6 Nc3 Rc6 Nce2 d4 Nf4 gxf4 g5 Re6 e5 fxe5 h5 Rg6 hxg6 e4 Ke2 e5 c4 d5 c5 Kd7 f6 h5 b6 a4 g7 e3 Kf3 d3 f7 e4+ Kg2 f3+ Kg3 d4 Kh4 d2 b7 d3 c6+ Kc7 Ne2 a3 Rb1 a2 Bh3 a1B Ng3 f2 Qa4 f1B Qa6 d1B Bg2 e2 Qa4 e1B Qa6 d2 Rh3 e3 Qa7 e2 Qf2 Bf5 Bf3 Bd6 Bg4 Bf4 Ne4 Ne7 g8R Nc8 Bf3 Nd7 Nd6 Ndb6 Rg3 B1h3 Qf1 Bf2 Be4 Bg1 Rd3 Bge3 Rg6 Qg8 b8Q+ Kd8 Qa8 Kc7 Qa5 Bd7 Qc5 Bhf5 Rg7 Be8 g6 Bed7 Rh7 e1Q+ Qf2 Qe2 Qf1 Qf3 Qc4 Ba4 Qc3 d1N Bd2 Bde6 Qc1 Beb3 Bb4 Nc3 Ba3 Bd1 Qd2 Bdc2 Re1 Bd1 Re2 Qg7 Bd5 Re8 Qc1 Qg8 Rh2 Re4 Rg2 Bh2+ Rg4 Rf4 Kg5 h4 Rg2 Rg4+ Kh5 h3 Be4 Bhf4 Bd5 Kd8 c7+ Kd7 Ba8 h2 Rh8 h1B Rh7 Na7 c8B+ Kc7 Bd7 Nac8 Qc2 Be6 Nf5 Qg3 Rh2 Bhc6 Qc1 Qf3 Rg2 Rg5+ Kh6 Bed5 Nd6 Be4 Bh3 Rg4+ Kh5 Bf5
3r1qR1/1n1Nb1bb/4Pb2/5Nk1/PPQ2R1r/R4rN1/2p3nn/1BK1bQ2 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 Bh3 hxg4 Bg2 Nd7 Bf1 Nb8 a4 b5 b3 b4 Ba3 bxa3 Nc3 Rh3 Nb5 Rh5 Nxa7 Rh8 d4 Ke7 Kd2 Kf6 e4 g5 h4 c5 d6 g3 b4 g4 d7 a2 h5 c4 e5+ Kg5 h6 f5 h7 g2 d5 c3+ Kc2 g3 d6 f3 Qd3 f4 Rc1 a1B Rh4 f2 Re1 f3 Rh3 Ne7 Qa6 Bg7 Qa5 Nbc6 Ne2 g1B Qb5 g2 Qc4 Qf8 d8Q Bf5+ Kc1 Na5 d7 Nb7 e6 c2 Nc6 Bae5 Ng3 Bef6 Nd4 Nd5 Re4 Ne3 Rf4 Bh2 Qe7 g1B d8N Ng2 N8c6 Rd8 Qf7 Bd3 Be2 f1N Ndf5 Bf2 Nb8 Be1 Nd7 f2 Bf3 Bg1 Bc6 Nh2 Bd5 Qe7 Qf8 f1R Qf7 Bc5 Qf8 Rg8 h8R Rf3 Qf7 Rge8 Rg8 Bd6 Qc6 Be4 Ba2 Qf8 Bb1 Bde7 Qb5 Rc8 Qd3 Rc4 Qf1 Ra8 Qe8 Rd4 Qc8 Rb8 Qcc4 Rd8 Nd6 Bh7 Ndf5 Re4 Nh5 Rf2 Ra3 Rf3 Nhg3 Rb3 Rf3 Rh4 Rf4 Rf3
2qbrQNK/2kn4/n1rp2rB/4NRr1/b3PQ1P/1P6/1Q1nb3/N1R4r w - - 0 1 legal: proof: g4 f5 a4 c5 f4 b5 axb5 h5 d4 cxd4 Bh3 e5 gxf5 exf4 Bg4 hxg4 Kf2 a5 h4 g5 c4 g3+ Kf3 a4 Ke4 d6 b6 Kd7 f6 d3 Kf5 g4 Kg6 g2 e4 g3 c5 d2 f7 a3 b7 f3 b3 f2 c6+ Kc7 Bb2 f1N Nf3 g1R Qc1 d1B Bg7 a2 Qb2 g2 Ne5 Na6 Na3 Bd7 Nc2 Nf6 Bh6 Qc8 Rc1 Be7 Kg7 a1R f8Q Bd8 b8N Ra5 Na1 Be2 Rh3 Ra7 Rf3 Nd2 Rf5 Rh1 Qf7 Re8 Qf8 g1R+ Kh8 Kb6 c7 Ba4 Nbc6 Rg6 Ne7 Nd7 Ng8 Rc5 Qf6 Rc6 Qf7 Nac5 Qf6 Ra5 Qg5 Na6 Qf4 Qa8 c8Q Qb7 Qa8 Kc7 Qa7 Rb5 Qc5 Qb8 Qd5 Qc8 Qf7 Rd5 Qg7 Rd3 Qf7 Rdg3 Qf8 R3g5
1qn5/B1N1bNpb/3Q1nb1/kP5r/2r2nRP/1Rn1n2Q/2Q2KP1/1r5R w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 h6 e3 h5 Qg4 hxg4 Be2 Nf6 Bd1 Ng8 Bf3 gxf3 d4 Kd7 b4 c5 h4 Kc7 d6+ Kb6 d7 a5 e4 f5 e5 a4 e6 a3 d5 a2 d6 f2+ Kf1 c4 e7 c3 e8Q c2 Qe2 Nf6 Rh3 Rh5 Bb2 c1N Rc3 Ra4 Rc4 Nd3 Nd2 Nc6 Rac1 a1R Nb3 Ne7 Nf3 Rb1 Nc5 Qc7 d8R Qb8 d7 Bb7 Ne5 Be4 Rd4 Nc8 Qc2 Be7 Ke2 f1N Nf7 Ne3 Na6 Ned5 Nc7 f3+ Kf1 N3f4 Kf2 Ng6 Rh1 f4 Rd3 Bf5 Rb3 Nc3 Re8 Be4 d8Q Bd3 Bc1 Bf5 Qd7 Be4 Qh3 Bd3 Ke1 f2+ Kd2 f1B Ke1 f3 Kf2 Nf4 Be3+ Rc5 Rd8 Bh7 Rd4 Bfd3 Rc4 Bdg6 Re4 Kb7 b6 Rh5 b5 Rc4 Rd4 Ne6 Rg4 Nf4 Kg3 f2 Bd4 f1N+ Kf2 Nd6 Bc5 Ne3 Bd4 Kc8 b7+ Kd7 Ba7 Nc8 Ne8 Qc7 b8Q Qb6 Qe5 Qb8 Ned6 Kc7 Ne8+ Kb7 Nc7 Qa8 Bb8 Kb6 Ba7+ Ka5 Qd6 Qb8
7q/1b1knrpq/1Pr2q1P/P4N2/2q2nBQ/1bqNQ3/2nK1RR1/1Q4N1 w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 exf5 h5 c3 hxg4 Bb2 b3 Ba3 Nc6 Bc1 Nb8 d3 b5 Bb2 e6 Qf3 b4 Bc1 b2 Qd1 b3 Be3 Bb4 cxb4 d6 Bc5 dxc5 h4 e5 a4 g3 f4 g2 a5 c4 b5 c5 b6 c3 h5 e4 h6 c2 d4 c1Q d5 e3 d6 e2 f6 c4 f7+ Kd7 f8Q c3 f5 c2 f6 Bb7 f7 Qcg5 Na3 c1Q Nb1 Qgf6 Rh2 Ra7 Nd2 b1B Ra2 b2 Ne4 Bc2 Ng3 b1Q Nf5 Nc6 Rb2 Nb4 Qe7+ Kc6 f8N Bb3 d7 Qc4 Qe5 Ne7 Ng6 Nc2+ Kd2 e1N Ra2 Nd3 Be2 Nf4 Bg4 Qb2 Qb1 Qbc3+ Kc1 Rf8 Qe3 Rf7 Rb2 Qf8 d8Q Qh8 Ra2 Ra8 Qdd4 Rc8 Ne5+ Kb5 Nd3 Kc6 Qde4+ Kd7 Rb2 Rc6 Q4d4+ Qd6 Qf6 Qde6 Qh4 Qg6 Kd1 Qcf6 Kd2 Qgh7 Nf3 g1Q Rg2 Qh2 Ng1 Qh3 Ra2 Na1 Ke1 Qf3 Raf2 Nc2+ Kd2 Qcc3+ Kc1 Qd5 Kd1 Qdd4 Kc1 Qcc4 Kd2 Qdc3+
2b2K2/4P3/3RRp1r/3bQ3/nQ1Q3N/1P1PbnN1/Bb1r1q2/n2kbRq1 w - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 h4 g5 b3 gxh4 Ba3 Qd7 Bc5 Qd8 Be3 d4 f4 exf4 c3 fxe3 cxd4 Bh3 d5 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 g5 c5 b6 h5 d3 e2 b7 e1B g6 c4 g7 f6+ Kd4 a4 d6 a3 Kd5 c3 d7 c2 Ke6 c1B Kf7 h3 e5 a2 e6 h4 e7 h2 Bg2 h3 Bf3 Rh6 Bg4 Na6 b8Q+ Qb6 d8Q Bb2 Ne2 Nc5 Qe5 Na4 Ng3 Qf2 Rf1 h1Q Nd2 h2 Nf3 Qhg1 Nh4 h1B Qdd4+ Ka3 Ke8 Bd5 Qd2 Ra7 Rb1 a1N Bd1 Rc7 Qa5 Rc2 Qab4+ Ka2 Rc1 Rd2 Rc6 Kb1 Bc2+ Kc1 Bb1+ Kd1 Ba2 Rh7 Rb6 Nh6 g8R Nf5 Re6 Bh6 Rg4 Be3 Kf8 Rh6 Rf4 Nd6 Re4 Nf7 Rd6 Ng5 Qf5 Bc6 Ree6 Bd5 Qfe5 Nf3
1RK1Q3/3P4/3PN3/3bqp2/BRn1qrb1/1nP1R2B/r1Q1B2b/1bb2rk1 w - - 0 1 legal: proof: f4 d5 g4 h5 b4 c5 e4 cxb4 exd5 a5 g5 a4 Bb2 a3 Nc3 axb2 Ne4 g6 Nf2 Rh7 f5 Rh6 fxg6 Rh8 Ng4 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 b1Q h4 b5 a4 g3 a5 b3 h5 b4 d3 g2 d6 b2 h6 b3 a6 Qc7 h7 Nf6 g7 Nd5 g8B Bg4 g6 f5 Ke6 Kd4 g7 Ke3 c3 Kf2 a7 Na6 d4 Nb6 d5 Nc4 Ne2 g1B d7 Bh2 Bh3 Nc5+ Kf7 e5 d6 e4 Qc2 e3 Nf4+ e2 Re1 Qa5 Ne6 Be7 Ra3 Bg5 Ra4 Bc1 Ke7 Qb5 Rb4 Qa5 Qd2 Qe4 Qc2 b1B Bf7 b2 g8Q Qb5 Qe8 Nb3 Bh5 Rg8 h8R Qbe5 Qf8 Rg5 Qe8 Ba2 Rg8 b1B Rh8 Rb8 a8B Rb7 Kd8 Ra7 Bc6 Rg7 Bf1 Kg1 Kc8 Ra3 Ba4 Rg5 Rd1 e1R Bh3 Rf1 Re1 Rg7 Re3 Rh7 Bg6 Rh4 Bh5 Bd1 Be2 Rhf4 Bd3 Bf3 Be2 Bg4 Qd2 Bd3 Qb2 Bab1 Qc2 Ra2 Bd1 Bde2 Rg8 Bf3 Be2 Bg2 Qh5 Qa8+ Kc7 Bd2 Rgb8 Bc1 Kc8 Qad5 Qg6 Qdd4 Qh5 Bd5 Qe8 Qde4
r1n4q/3Nr3/PNbBN3/rQ3bP1/7K/np1q1b2/2Q1QP2/1RnB1r1k w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 fxe4 Be2 axb4 Bf1 d5 cxd5 g4 a4 Bh6 Rh3 gxh3 g4 Bg7 g5 Bf6 g6 Bg5 hxg5 Ra6 Na3 Rb6 Be2 Na6 Nf3 Kf8 Qb3 Nb8 Bb2 Ra6 Kf1 Rd6 Rd1 Nf6 Bc1 Ne8 Nb1 Re6 Re1 Rb6 Qd1 Nf6 Bb5 Ng8 Ke2 Na6 Rh1 Nb8 Ng1 Ra6 Ke1 Ra8 Bf1 Ke8 d4 Kd7 a5 Kd6 g7 h5 Nf3 b5 Nh4 c5 Ng2 e5 Ne3 h2 Nc2 h4 Nd2 c4 Ne3 c3 Qf3 h3 Nd1 c2 Rg1 h1B Ne3 h2 Ba3 c1N Qf8+ Ne7 g8N Bf3 Nc2 h1B Nb1 e3 Qf5 e4 Nd2 e2 Nf6 Nbc6 Nd7 Ne5 a6 Nc4 Bh3 Rh7 Bg4 Qh8 Rf1 Rf7 Qh7 Rf5 Qh5 Kc7 d6+ Kc6 Qe8 Kd5 Qg6 Ne5 Nc4 b3 Bb4 b2 Ncb6+ Kc6 Kd2 b1Q Ke3 Bhg2 Bc5 b4 Qe6 b3 Qc4 e1R+ Qe2 Rf6 Ba3 Re6 Kf4 e3 Kg3 Nc4 Rh1 Re5 d5+ Kb5 Bh5 Rf1 Kh4 Rf5 Na1 Qd3 Nc2 Re5 Bc5 Na3 Nd4+ Ka5 Qc2 e2 Ne6 Kb5 Bb4 e1R Qe2 Be4 Qc2 Bb7 Bc5 Bh7 Bd1 Bf3 Be2 Bg4 Ndf8 Na2 d7 Bhf5+ Nh7 Rg1 d8Q Nc8 d6 Kc6 d7 Qd2 Nf8 Bh5 Qe7 Qd3 Bd6+ Rc5 Nc4 Kd5 d8Q Bc6 Qb6 Ra5 Qb5+ Kd4 Bf3 Re5 Bg4 Ke4 Nd7 Ra1 Ncb6 Re6 Bh3 Kf3 Bg4+ Kg2 Nhf8 Re2 Qe3 Rg1 Qed2 Re7 Ne6 Ra1 Rh3 Kg1 Re3 Rf1 Re1 Kg2 Rb1 Nc1 Bd1 Kh1 Qe2 Bhf3+
5Bn1/Nq4Q1/P3rQ2/B3p1Rr/1qP1qb2/1br1R1K1/n1B1P3/1Rbrk3 w - - 0 1 illegal: No possible last move
1Q1Bbbq1/1nQ3Pk/2n4q/2Q1Pr1b/3rr3/p1K1PB2/4NR2/4nRBr w - - 0 1 legal: proof: c4 c5 a4 e5 f4 g5 fxe5 b5 h4 gxh4 d4 cxd4 Nc3 dxc3 axb5 Qb6 Qd6 Qa5 Qd1 Qd8 g4 f5 b4 Kf7 c5 Kg7 g5 a5 g6 h5 b6 d5 b5 a4 b7 d4 b6 h3 c6 a3 e3 f4 c7 f3 Qd3 h4 Be2 f2+ Kd1 f1R+ Kc2 h2 Nh3 Ra4 Qe4 d3+ Kb3 d2 Nf4 d1B+ Qc2 h3 Bb2 Nd7 b8B Rh4 b7 Nc5+ Ka2 Re4 Bf3 Ne7 Ne2 Bd7 c8Q Be8 Bc7 Nc6 b8Q Nb7 Kb3 Rd4 Rg1 h1R Rg2 h2 Rf2 Rhe4 Bc1 Kg8 g7 Kh7 Qd7 Qc8 Bd2 Qd8 Qd5 Qc8 Rc1 Qe6 Be1 Qg8 Ng1 Be2 Bd8 Bd1 Ra1 Be2 Qc1 c2 Kc3 Bd1 Qc5 Be2 Qb1 c1N Qbb6 Nd3 Q6c7 Bd1 Rg2 Rf2 Ne2 Rff1 Bf2 Ne1 Bg1 Rf2 Bh5 Rf5 Rf2 Bb3 Rf1 Bbf7 Bf3 Bg6 Ra2 Bh5 Bf2 Rg1 Rc2 h1Q Rb2 Qh2 Rc2 Rh1 Bg1 Qh3 Ng3 Bg4 Rcf2 Qh6 Ne2 Bgh5
n4Q1N/5P1R/2br1Pq1/3B4/qBQ1PrR1/1qK2k2/Rrp2n1n/1r3B1b w - - 0 1 illegal: No possible last move, all moves rejected
2RKb2r/1rRp4/1PPN3q/QN5q/2n2n2/qrP3Q1/RQ1B4/q2kb1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 exf4 Nf3 g3 Ng1 f3 Bg2 fxg2 Kd2 Ke7 Ke3 Kf6 Ke4 a5 Kd5 Kf5 h4 Kg4 b4 f5 h5 g5 h6 f4 e4+ f3 b6 a4 h7 a3 e5 a2 b7 Ra7 b5 Qf6 b6 Nc6 b8Q Qh6 e6 Ba6 e7 Rb7 e8Q Bc4+ Ke4 Nf6+ Ke3 Na5 Kd4 Bf7 Ke5 Nh5 c6 Bb4 Qd2 f2 Qg8 f1Q Qg7 Qf3 Nh3 g1Q Na3 g2 Nb5 Qgd1 Rh2 Qa3 Nf2+ Kf3 Ne4 g1B Ned6 g4 Qe1 g3 Bd2 g2 Qeg3+ Ke2 Qa7 Rg8 h8R Nc4+ Kf5 Rd8 Qa5 Nf4 Qb2 Ra8 Rc8 Be8 Bc1 Be1 Bd2 Rab8 c3 Ra8 Qg6 Rab8 Kf6 Ra8 Ke7 Rab8 Rb1 a1R Rc1 Rb1 Kd8 Ra8 Qg3 Rab8 Qbb4 Rb3 Rc2 Qda1 Ra2 Kd1 Rh4 Qb1 Rg4 Qf5 Rg8 Qfh5 Rh8 Bh2 Rg8 g1Q Rf8 Qgc5 Rg8 Bg1 Rh8 Qb2 Qba3 Qa1 Qb2 Qa3 Rg8 Ra8 Rf8 Raa7 Rc7 Ra8+ Ke7 Bf7 Rfc8 Be8 Kd8 Qe2 Rb8 Qeh5 Ke7 Bg6 Rg8 Rf8 Rh8 Rf5 Rb8 Rf8 Rbc8 Be8 Kd8 Rh8
r2n1q1k/P2bq2N/1q3R2/b2Q1rQ1/3nRP2/5K2/rPnpQ1N1/BN1r4 w - - 0 1 illegal: Other
Qn1rNq1N/P2bp3/k1nNR1b1/Bq6/3n2bP/Q1P2Rqr/n4K2/R7 w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 c5 b4 cxd4 f4 axb4 e4 g6 Bd3 Bg7 e5 Bf6 exf6 h6 Be2 h5 Bg4 hxg4 a4 b5 h3 d5 f7+ Kd7 f8Q Kc7 f6 Kb6 f7 g5 f5 b3 a5+ Ka6 f6 b2 Rh2 b4 Qg7 b3 f8N g3 f7 d3 Bf4 d4 Nc3 b1Q Nf3 d2+ Kf1 g4 Qe1 d1B Qee5 g2+ Ke1 g1N Qc5 b2 Qb4 g3 Re2 d3 Nd7 g2 f8R d2+ Kf2 Nc6 Re6 Ne2 Nf6 Bd7 Ne5 Nd4 Nf7 Bg4 Ne8 Nf6 Bc7 Rc8 Nb5 d1N+ Kg3 Rh7 Nh8 Nc3 Kf2 Na2 c3 Qd3 Qf7 b1B Nbd6 Qb5 Qg8 Bg6 Qa3 Ra8 Ng7 Qe8 Rf7 Qf8 Nge8 Rd8 Bb6 Nd5 Rf3 Ndb4 Bc7 Nb8 h4 Nb4c6 Bb6 Rh5 Bc7 Re5 Bb6 Re3 Bc7 Ka7 a6 Rd3 Ba5 Re3 Bb4 Kb6 a7 Rd3 Rff6 Rh3 Ba5+ Ka6 Rf3 B6h5 Qg5 Bg6 Qd5 Ncb4 Qa8 Nb4c6 Ke1 g1Q+ Rf1 Qh2 Rf3 Qhf4 Kf2 Qg3+
1b1r2bQ/qB4b1/2n1B1K1/rb1n1NQP/2Pp3P/5Nnk/5b1n/3Q2BR w - - 0 1 legal: proof: f4 c5 b4 h5 c4 e5 g4 exf4 a4 Ke7 Ra3 Ke8 gxh5 b5 d4 cxd4 Rc3 dxc3 axb5 Rh7 Be3 Rh6 Bc1 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 d5 e4 f5+ Kf3 a5 h4 g5 b6 a4 b7 a3 b5 g4+ Kf2 c2 b6 f3 Kg3 f2 Kf4 a2 e5 a1B Nd2 g3 Bd3 f1B Ne4 g2 Qe1 Ra5 Ba3 c1N Qg3 Qe7 Qh3 Bg7 Nf6 Nc6 Kg5 Bd7 b8Q Ne2 b7 Ng3 Be4 Bd3 Qh2 f4 Kg6 f3 Bc5 f2 Ng4 f1N Qd8 Nf6 Nf3 g1B b8Q Bf2 Qg1 Nh2 Nh6 Bb2 Qd1 d4 Bd6 Nd5 Nf5 Bc1 Bc7 Qc5 Qg5 Bf4 Bd6 Rc8 Qa8 Qa7 Qb8 Rc7 Qh8 Rc8 Bb8 Rd8 Bd6 Nb8 Bc7 Bb5 Bd6 Nb4 Bb7 N8c6 Bc7 Be4 Bd6 Bd5 Bc7 Kd7 Bd6 Bg8 e6+ Ke8 e7 Kd7 e8B+ Ke6 Bb8 Nd5 Bc7 Bd2 Be5 Bb4 Bf4 Bd6 Bd2 Bb8 Be3 Be1 Bg1 Bf2 Ne1 Ke5 Bd7 Ke4 Be6 Ke5 Qe7 Kf4 Nf3 Kg4 Qg5+ Kh3
q7/R2nK1R1/Q1n1P2P/Q2Nn1P1/B3rn1r/bQr2Np1/1r2b3/5Nrk w - - 0 1 legal: proof: c4 e5 f4 exf4 g4 h5 b3 d5 cxd5 g5 a4 h4 Qc2 b6 Qd3 b5 Qg3 hxg3 axb5 f3 Ba3 Nd7 Bd6 Nb8 Bf4 gxf4 d4 Kd7 Kd2 Kd6 Kd3 f5 Kc4 c5 e4 a5 h4 a4 g5 f2 h5 a3 b4 a2 b6 f3 b5 f4 b7 Nd7 b8N Ne5+ Kb3 c4+ Kb4 c3 b6 c2 b7 c1N Rh2 Ra4+ Kb5 Bg4 Nd2 Ne2 Na6 Nf6 Nc7 Qa8 b8Q Nfd7 Bh3 Ra3 Nf1 Rc3 Qa7 Rh7 Qa4 Re7 Qb3 Re8 h6 Re6 Rd1 a1N Rb1 Nc2 Rb2 Ke7 d6+ Kf7 d5 Kg6 Ra2 Kh5 Ra7 Kh4 Rh1 Nb4 Rb7 Nc5 d7 Bd6 d8Q Ncd7 Qf6 Be7 Ne3 f1R d6 f2 Ncd5 Rb1 Nf1 f3 Rc7 Nf4 Rh2 Nf8 d7 Rb2 d8Q Nfd7 Rb7 Bc5 Qa5 Re8 Qfa6 Bf8 Nd2 f1R Ra7 Bc5 Re2 f2 Re3 Rfb1 Nf1 Be2+ Rd3 Bd6 Bg2 Rbc1 Nf3+ Kg4 Bh1 Rc4 Rd4 Kh3 Rd1 R1c3 Re1 Ned3 e5 Re4 Rd1 Rf8 e6 N3e5+ Rd3 Rd8 N3d2 Rdc8 Nf3 R8c4 Rd4 Nc2 Rd2 Ba3 Rd1 Nb4 Ra1 Nc5 Rg7 Rcd4+ Kb6 Rdc4 Kc7 Ncd7+ Kd6 Rcd4 N1d2 f1R Ke7 Rg1 Nf1 Rdc4 Nh4 Rcd4 Bf3 Rdc4 Bh5 Rcd4 Nf3 Kg2 Bf7 Kh1 Be8 Nh3 Ra2 Rh4 Ra1 Rde4 Ra2 Nf4 Ra1 Nf8 Ba4 Nfd7 Rc1 Rd3 Rc7 Rc3 Ra7 Nbc6#
1bQn3N/1r1qQ1Pq/1R2qQ1K/2r1qPP1/8/1p2Bq1R/1b6/kNR1n1q1 w - - 0 1 legal: proof: f4 a5 e4 f5 c4 d5 b4 axb4 cxd5 g6 Be2 fxe4 Bf3 g5 h3 g4 g3 gxf3 g4 Nc6 g5 Bg4 hxg4 Nb8 Kf2 Kd7 Kg3 Kd6 Kh4 Kc5 Kh5 Kc4 a4 c5 d4 e5 f5 b5 a5 e3 d6 e4 d5 f2 d7 f1Q d6 b3 g6 b2 a6 b4 a7 e2 g5 e1Q g7 e3 Qa4 e2 Qb5+ Kb3 Bd2 c4 Ra6 c3 Bf4 c2 Ra2 c1B Na3 b1Q Qc6 Nh6 Qg2 Ng4 Qb7 Ne3 Qe4 Ng2 Rh3+ Qd3 Qf3 Bb2 Kh6 Nc6 Qh5 Qff3 Nb5 Rb8 a8R Rb7 R2a4 Qeg3 Na3 Ka2 Qe8 e1Q R4a6 b3 Bc1 Qge5 R8a7 Ka1 Qe7 Qdd5 Rg3 Qg8 Rh3 Qc8 d8Q Qd7 Qc8 Nd8 Bd2 Q1e3 Ne2 Ne1 Rb6 Qee6+ Qf6 Q3e5 Ra4 Be7 Rg4 Bf8 Nf4 Be7 Kh5 h6 Kg6 h5 Be3 h4 Nb1 Bf8 Rg1 Be7 Rhg3 h3 Rf1 h2 Rh3 h1Q Rg1 Qdc6 d7 Bd6 Rf1 Rh4 Rg1 Rg4 Kh6 Bb8 Ng6 Rc4 Nh8 Rc5 Rf1 Nd3 Rd1 Qg1 Rc1 Qcd5 Bd4 Ne1 Be3 Nc6 d8Q Qdd7 Qe8 Nd8 Qe7 Qh7+
N2R3q/n3Pr2/N2R1Pk1/pK1bP2n/8/2BnQ1Nn/r1n2qn1/Qb5R w - - 0 1 legal: proof: f4 b5 d4 c5 a4 cxd4 g3 e5 fxe5 bxa4 Na3 h5 Qd3 f5 Qd2 f4 Qd1 f3 Bh3 Be7 Bg4 Bg5 Nb1 Bf4 gxf4 hxg4 Kd2 Kf7 Kd3 d5 c4 g5 h4 g3 e4 g4 b4 g2 e6+ Kg6 c5 g3 e5 f2 c6 f1B+ Ne2 g1N e7 g2 c7 a3 b5 a2 b6 Nh3 b7 g1Q Bd2 Bg2 Bc1 Qf2 Be3 Nf6 Nd2 Nh5 Nc4 Rf8 Ng3 Rf7 Bd2 Qh8 Bc3 Nc6 b8N a6 Qe1 Na7 Rd1 a1N Nb6 Nc2 Qe3 Bg4 c8R Be2+ Kd2 d3 Rd8 d4 f5+ Kh7 f6 Kg6 Kc1 d2+ Kb2 d3 Kb3 Bd5+ Ka4 Bef3 Rd6 Ba2 Ka5 Bfd5 Rd8 Bb1 Ka4 a5 Na6 Rb8 Na8 Rb2 Rd6 Nc6 Rd8 Ra2+ Kb5 Rf8 Rdf1 d1N Rd6 Nb2 Rd1 d2 Rd8 Rf7 Rd6 N5f4 h5+ Kh6 Rd8 Nd3 Rd6 Kh7 h6 Kg6 h7 Nh5 Rd8 Qg8 h8Q Na7+ Kb6 Qh7 Qe8 Qh8 Qa4 Nce1 Qa3 Ng2 Qb2 Qf8 Qa1 Qh8 Rdf1 d1N Rfg1 N1b2 Rd1 Nb4 Rd2 Nc2 Rd3 Bb7 R3d6 Bd5 Kc5 Nd3+ Kb6 Nc8+ Kb5 Na7+
1b1r4/kB1NBrQ1/P7/r1n2p1b/b1nB1N2/6PR/2Q1KP2/1q1nQr1n w - - 0 1 legal: proof: c4 e5 d4 g5 b4 a6 b5 axb5 dxe5 bxc4 Bf4 c3 Be3 Bc5 Bc1 Bf8 h4 Bd6 a4 Qf6 h5 Bc5 Ra2 Qd8 Rb2 Bf8 Rb4 h6 Qd3 Nf6 Rbh4 gxh4 Qh7 Ng8 Bxh6 Nf6 Bc1 Ng8 e4 d5 e6 c5 a5 b5 h6 c2 e5 d4 e7 Kd7 e8Q+ Kc7 g3 Kb7 e6 h3 e7 h2 Qd3 c4 h7 c3 Qf5 b4 Bh6 c1R+ Ke2 d3+ Kf3 d2 Bc4 d1N Qa4 c2 e8Q b3 Qd3 b2 Ba2 Qb6 Bd2 Nd7 Ne2 Ne5+ Kg2 Ka7 Kf1 Bd7 Qg4 Nc4 Qgg6 Bd6 Nf4 Nf6 Qe1 Bb8 Qg7 Ne4 Ke2 Ba4 Bb4 Nc5 Na3 Rd8 h8B Rb1 Bb3 c1R Qc2 Ra1 a6 b1B Qg5 Rd7 Bd4 f6 Qg7 Rf7 Qb2 Be4 Qc2 Bg6 Ba2 f5 Bb1 Nd3 Be7 Nc5 Ba2 Qb1 Bb3 Nd6 Bd5 Nc4 Bb7 Ra2 Rg1 Ra1 Rg2 h1N Rh2 Bc7 Rh3 Rd8 Nh5 Bb8 Nf4 Nd6 Nc4 Ra2 Nd2 Nc4 Nb3 Bd7 Na5 Ndb2 Nc6+ Kb6 Rh6 Ra5 Qed2 Rf1 Rh3 Nd1 Ne5 Ka7 Qe1 Ba4 Nd7 Bh5+
3Q2n1/1qbK3q/1N5n/P5r1/NP2BnNQ/k1r2Bpb/5PBn/4R1rr w - - 0 1 legal: proof: c4 e5 h4 g5 d4 a5 dxe5 b5 g4 a4 b3 a3 Nd2 f6 Bb2 axb2 cxb5 gxh4 a4 f5 g5 Nf6 Rc1 Ng8 Rc4 Bd6 Rf4 Bf8 Rg4 fxg4 e4 Na6 Ke2 Ke7 Ke3 b1N Kf4 d5 e6 h5 b6 Kd6 Kf5 Kc5 e5 Kb4 b7 c5 b8N c4 Nc6+ Ka3 Be2 c3 Nd4 c2 Qe1 c1R b4 h3 Kg6 h4 Nc6 d4 Kf5 d3 Qf1 Qb6 Bf3 Qb7 Ne2 Rd1 Be4 h2 a5 Rh5 Nc3 Bd6 Qh3 g3 Na4 Nc7 Rg1 h1Q Nc4+ Ka2 Qg4 d2 Ncb6 h3 Rf1 h2 Bf3 Qg1 Qh4 h1R Bg2 Ka3 Bf3 Bd7 Bg2 Be8 e7 Nd5 Bf3 Bf7 e8Q Rc8 e6 Nf4 Ne5 Rc3 e7 Bc7 Qd8 Rdc1 Bg2 d1N e8B Nd2 Bec6 Nf3 Bd5 Nh2 Bdf3 Ne7+ Kf6 Ne3 g6 N3f5 g7 Rg5 g8B Be6 Bh7 Nh6 Bg6 Bh3 Ng4 Rb1 Rc1 Qd1 Bc2 Qd7 Bce4 Neg6 Rf1 Qh7 Rg1 Ne7 Rd1 Nh5+ Ke6 Nf4+ Kd7 Ra1 Rd5 Rae1 Rd1 Reg1 Re1 Neg8+
nR3Qr1/2KBNPQ1/3n4/3Bbq2/b4b1P/3P2qr/3b1kpn/nRBQ4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Bd7 f5 Bc8 Nc3 h6 Nce2 h5 Nf4 gxf4 g5 Ba6 Qe2 Bc8 Qg4 hxg4 Kf2 Kf7 b4 a5 g6+ Kf6 d6 Kg5 f6 Kh4 d3 e5 d7 c5 h3 f3 Ke3 Kg3 f7 f2 g7 c4 b6 c3 b5 a4 b7 c2 b6 a3 Rh2 a2 Ba3 c1B+ Ke2 e3 Nf3 e4 Rb1 a1N Bg2 f1N Ne5 Bd6 Nc6 Nf6 g8B Be5 Ne7 Ne8 Bh7 Nd6 Bf5 Rh6 Rh1 Nh2 Rf1 Qc7 d8Q Bd7 Qg8 Qc5 Qg7 Ba4 Bd7 Bd2 Bc1 Bf4 Ng8 Qf5 Ne7 Bc3 Rd1 Bce5 Rd2 Rh7 Rdb2 Rh6 Bc8 Nd7 b8Q Rh8 b7 Nb6 Bd7 Rh6 Qa7 Rg8 b8Q Rh5 Qbf8 Rh4 Ke1 e2 Qc7 Rh6 Qc2 Rh7 Qd1 Rh5 Be3 Rh6 Kd2 e1B+ Ke2 Bb4 Bd2 e3 Bc1 Bbc3 Bd5 Bd2 Bc4 Kg2 Rb4 g3 R4b3 Nf1 Bd5+ Kg1 Kf3 g2 Rb4 e2 R4b2 e1Q Rb3 Qfe4+ Kg4 Kf2 h4 Rf6 Rc3 Qh7 Rc8 Qhe4 Rb8 Nh2+ Kh5 Rf5+ Kg6 Q1e3 Rd8 Q3f3 Rb8 Qg3+ Qg4 Bh6 Bb5 Qge3 Qd1 Bg5 Be8 Qg4 Bec6 Rf3 Be8 Rh3 Bec6 Ne8 Bd7 Qh5+ Kf5 Bgf4+ Ke6 Qg3 Nc6 Qf5+ Ke7 Nf1 Kd8 Nd6 Kc7 Nh2 Ne7 Na8+
2n2Q2/Q1Prq3/2PQ1q2/np1N1B1K/2k3r1/BrbRq3/3B3P/qr4bR w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 dxc5 e5 Qd6 exf4 Qd1 f3 Kd2 h5 Na3 b6 Ke1 f4 Nc4 Bb7 Ne5 Ba6 Bb2 Bd3 Bc1 Bf5 gxf5 Ne7 Ng4 hxg4 Bh3 Ng8 Bg2 Ra4 Bf1 Ra8 Kf2 Kf7 a4 g5 c4 d5 e4 g3+ Ke1 g4 f6 Ke6 e5 d4 c6 g2 Kf2 g3+ Ke1 b3 f7 b2 c7 b1R a5 b5 c5 Kd5 e6 f2+ Ke2 f3+ Kd2 d3 Ke3 d2 Kf4 Nc6 Kg4 Qe7 a6 Na5 c6 Rh3 a7 Bg7 f8B Bc3 Bd3 f1Q Bg6 f2 Ra3 Kc4 Ne2 g1B Nf4 g2 Bf5 Qe1 Bh6 f1Q Nd5 Rd8 a8Q Rd7 Qa7 Qe3 Bf8 Rg3+ Kh5 Rb3 Bh6 Rg4 Bb2 Qff4 Bg5 Qfd6 Bf4 Qf6 e7 Qde5 e8Q Ne7 Qf8 Nc8 Qd6 Qee7 Qf3 d1R Qf1+ Qd3 Bd2 Rb1 Qff4+ Qdd4 Qh6 Qde3 Qg7 Bf2 Qf8 g1Q Bbc1 Qd1 Bb2 Bg1 Bbc1 Rb4 Bb2 Qa4 Rb3 Qa1 Ba3 Be5 Rd3 Bc3 Qh8 R4b2 Qf8 Rb3
nrbB1N2/1P3BK1/2k1q1bQ/2P2Qn1/1R5B/nPp1r1Q1/2q5/b1Rb1n2 w - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 g5 h4 gxh4 d4 cxd4 Nc3 dxc3 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 Ke2 h5 Ke3 e5 Ke4 d5+ Kf3 Kd7 g4 a5 g5 e4+ Kf4 a4 Ke5 a3 f4 e3 b6 h3 b7 h2 b3 d4 f6 h4 f7 h3 f5 a2 f6 d3 g6 e2 g7 e1Q+ Ne2 d2 Kf5 Na6 Kg6 Ba3 f8Q Nc7 f7 Rb8 c5 Kc6 Rb1 a1N Nf4 Bb2 Nh5 Nc2 Nf4 Na8 Ne6 Nf6 g8Q Na3 Qc2 d1B Qf5 Ne4 Kg7 Ba1 Bg5 Qd3 Rc1 Qc2 Bh4 Ng5 Bc4 Qe3 Rf1 h1N Rf4 h2 Rg4 Ng3 Bd5+ Kd7 Rb4 h1B Kf6 Bdf3 Qe4 Nf5 Bg3 Rh3 Bh4 Bd1 Qh6 Ng3 f8B Nf1 Be7 Nf7 Bd8 Bg2 Qgg4 Ng5 Kg7 Bh1 Qd3 Be4 Qf4 Rf3 Qg3 Bg6 Qf5 Qe1 Bc4 Kc6 Nf8 Qe7+ Bf7 Re3 Qh5 Qd6 Qh6 Qe6
q1N3nq/R3n1Q1/8/n1PNR1PQ/Qr5n/p1rq3k/7P/rB1N1Kbn w - - 0 1 legal: proof: e4 c5 f4 b5 a4 g5 axb5 gxf4 d4 cxd4 Qf3 d3 Qe2 Na6 Qd1 Nb8 g4 h5 Ra3 d5 Ra1 h4 Be3 d4 Bf2 Bb7 Bg3 Bd5 exd5 hxg3 c4 Kd7 b4 e5 g5 a5 b6 f5 d6 Ke6 d7 e4 b7 a4 b5 f3 b6 e3 Qd2 a3 Qb2 d2+ Kd1 g2 Nc3 e2+ Kc2 e1N+ Kd1 f4 Rc1 Kf5 Nb5 Kg4 Qb3 f2 Ke2 d1R Nf3 g1Q Qb2 Rh3 Rc3 Ra1 Na7 Bc5 Nd2 Nf3 Nc8 Nh4 Ne4 Nc6 b8N Na5 b7 Qg2 Na6 Rb8 Nc7 Qf6 d8Q Qh8 Rc1 Rc3 Nd5 Kh3 Qe8 Ba7 Qa4 d3+ Kd1 d2 Bd3 f1N Bb1 Ng3 Re1 f3 Re2 Rd3 Nec3 f2 Re5 Nh1 Ke2 d1N Rc2 Ne3 Nd1 Bd4 c5 Rc3 Rd2 Nef5 Rd3+ Qg3 Kf1 Nfe7 Qe2 Be3 Qh5 Qg4 Rd4 Qe6 Rb4 Qa6+ Rb5 Qa8 Rb6 Rb3 Ra6 Rb4 Ra7 Bd4 Nd6 Rf8 b8Q Rf3 Qf8 Rc3 Qg7 Be3 Nc8 Bd4 Ke2 f1Q+ Kd2 Qf5 Ke1 Bg1 Ke2 Qfh7 Kf1 Qd3+
b1qQ1Rnr/q1q2Q2/2k5/pr3BPN/2P2bN1/q3b1B1/N5KP/2r1Q2q w - - 0 1 illegal: No possible last move
R1nqq2K/R1b5/q3kP2/2Rq1r1B/Q3NpPP/1q4Q1/1b3rQ1/3bBr2 w - - 0 1 illegal: No possible last move, all moves rejected
2Q1q1bN/1q1q1B1P/Qp1P1B2/5PK1/Nn2rb1Q/3R2nb/3nk3/n2nN3 w - - 0 1 legal: proof: f4 d5 e4 dxe4 c4 a5 b4 axb4 g4 f5 gxf5 h5 a4 Qd7 f6 Qd8 f5 Ra6 Ra3 Rd6 Rg3 Rd7 Rg4 Rd5 cxd5 hxg4 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 h4 Kd4 f7 g5+ Kg3 e5 d6 c5 d7 b3 a5 c4 a6 e3 a7 c3 a8N c2 h5 e2 h6 Kd3 h7 e4 Nh3 b2 Na3 b1B Bg2 e1Q+ Kh2 e3 Qf3 b6 Qf1+ e2 Nb5 g3+ Kg1 g4 Bb2 c1N Ng5 Ba2 Bd4 Bb7 Na7 Ne7 Bh3 g2 Kh2 g1N Bf6 Bg2 Nb5 Na6 Nac7 Nb4 Na3 Nb3 Nd5 Bg7 f8Q Na1 Nc3 Ned5 Nc2 Ne3 Na4 Bg8 Qc5 Nd1 Nf7 Qa8 Qc6 Qb7 Qc8 Qf2 d8Q+ Qd4 Kg3 Nf3 Qe7 Qdd7 Kf4 g3 Bg4 Bh3 Bh5 g2 Rh2 g1N Qed8 Nd4 Kg5 Ndb3 Rg2 Bf8 Rh2 Bd6 Bg6 Be5 Ne1+ Ke4 d4 Ke3 d5 Nd2 Nd3 e1Q d6 Qe2 Ne1 Qeb5 Rg2 Ne2 Rf2 Ng3 Rf3+ Ke4 Bh5 Qe8 Bg6 Q5d7 Qa6 Kd4 Rd3+ Ke4 Rd4+ Ke3 Rd3+ Ke2 Nh6 Bd5 Nf7 Rf8 Nh8 Bg8 Qe7 Rf7 Qed8 Re7 Bf7 Bc3 Qdc7 Re4 Qcc4 Be5 Qd4 Re3 Qf4 Re4 Qh4 Bf4+
1bN5/1rQqp1nb/n1P1n3/n2Q4/1BN2qBK/2Pb1R1P/3QB2k/2n1q3 w - - 0 1 legal: proof: f4 a5 b4 b5 d4 h5 e4 f5 a4 fxe4 g4 Ra6 f5 Rg6 Ra3 c6 Rg3 Rg5 f6 c5 dxc5 Rf5 gxf5 axb4 Rg4 hxg4 Kf2 Kf7 Kg3 d5 c3 g5 a5 b3 c6 d4 a6 b4 h3 e3 a7 e2 a8B e1Q+ Kh2 d3 Bd2 g3+ Kg2 b2 Kf3 b3 Kg4 g2 Be3 d2 Bd3 Qd6 Na3 b1B Bb5 b2 Bf1 Na6 Bb6 Bg7 Ba5 Bd3 Nb1 Nh6+ Kh5 g4 Be2 g3 Kg5 Qf4+ Kh5 Rd8 Na3 b1N Nf3 g1N Bb7 g2 Ba8 Rd7 Nc4 Rb7 Bb4 Na3 Qc2 d1Q Nb6 Nc4 Nd2 Nf3 Rf1 Na5 Ndc4 g1N Qd2 Ng5 Rf3 Bd7 Nc8 Ne6 Rf1 Bh8 Bg4 Ne2 Rf3 Qf1 Kh4 Nc1 Re3 Qfe1+ Rg3 Kf8 f7 Kg7 f6+ Kg6 f8Q Bg7 f7 Be5 Qd8 Bb8 Qc7 Kf6 N4d6 Ke5 f8Q Bh7 Qfd8 Nf5+ Kh5 Nfg7+ Kh4 Be8 Nc4+ Ke4 Qa2 Qd7 Qd2 Rb5 Bb7 Beg6 N4d6+ Ke5 Qg8 Bd3 Nc4+ Ke4 Qgd8 Nac5 Ba6 Rb7 Bb5 Na6 Ne5 Bb1 Be2 Bd3 Nc4 Qe8 Qdd6 Qd7 Ne5 Qe3 Qd5+ Kf4 Q2a2 Qf3 Qb2 Ke3 Qc2 Kf2 Nc4 Qf4 Rf3+ Kg2+ Rf2+ Kg1 Qd2 Qf1 Rf3 Kh2 Qb5 Qd1 Qd5 Qe1+
q1N5/P2kq2q/2r2Qq1/QbPN1R1p/2KbP2n/3n4/2R2q1R/B1N3nb w - - 0 1 legal: proof: h4 b5 f4 c5 d4 cxd4 g4 e5 fxe5 g6 Bh3 Bc5 b4 a5 h5 axb4 g5 Ra6 Bf5 gxf5 Kf2 Rf6 Ke1 Rg6 hxg6 Bf8 Kd2 h5 Kd3 d5 a4 f4 c4 f5 e6 f3 a5 f4 g7 b3 g6 b4 a6 f2 c5 f1N a7 f3 e7 b2 e3 f2 Na3 b1Q+ Nc2 b3 Ra3 b2 Ra1 Nd7 Nf3 Rh6 Qd2 Ne5+ Ke2 d3+ Kd1 d4 Qb4 d2 Ke2 Nh2 Nh4 Bb7 Nf5 Kd7 e8R Qa8 Qa5 Ne7 g8Q Nd3 g7 Ng6 Ra2 Nf3 Ng3 Ngh4 Qh8 Rc6 g8N Bg7 Ne7 Be5 Rh2 d1B+ Kf1 Bg7 Rf8 Ng1 Nb4 Ba4 Rf5 Qc2 Nc8 b1Q Nd5 Qb6 Ne2 Qd8 Ndc3 Qe7 Qh6 Nb4 Rf3 d3 Qa6 d2 Bb2 Rf6 Qa5 Qh7 Ba1 Rd6 Rf7 Bh1 e4 Bd4 Nc1 Rc6 Qg5 Qg6 Rc2 Qh7 Rf8 Qg6 Nd5 Qgh7 Qe3 d1Q+ Qe1 Qg4 Qc3 Qgg6 Rf3 Be3 Qf6 Bd4 Rf4 Ngf3 Ke2 Ng1+ Kd2 f1Q Rff2 Nd3 Rf5 Be3+ Kc3 Bd4+ Kc4 Qe2 Qg5 Qf2 Qf6 Bb5+
3q4/RQ3nNn/5kbQ/Pb3b1P/N1n1n2r/N1P1b2R/nKBb3p/4Q3 w - - 0 1 illegal: No proof kernel
n1bQ1Q2/qq1q1R2/1B3qq1/1P1Rqb2/2R1p2b/3PQ1P1/1KN2Nkr/2n5 w - - 0 1 illegal: No possible last move, all moves rejected
5N1k/n3KQqq/1r1q1p2/2Q1nRP1/1N1Q1Rr1/2B2qP1/Pb5q/4q1Nn w - - 0 1 legal: proof: c4 e5 b4 a5 f4 axb4 e3 exf4 h3 d5 cxd5 g5 Be2 g4 Bf3 gxf3 Qb3 Ra7 Qd1 Bg4 hxg4 Ra8 Kf2 c5 d4 h5 d6 b5 g5 b3 g3 c4 e4 f6 e5 Kf7 e6+ Kg7 e7 c3 e8Q b4 d5 c2 d7 b2 d6 h4 Qee2 b3 Nd2 b1Q Ba3 c1Q Bb4 b2 Nb3 h3 Qa6 h2 Na5 Qbc2+ Ne2 b1Q Qe1 Rh4 Nc6 Rg4 Qg1 Ne7 Qa3 Kh8 Bc3 Nc8 Nb4 Na7 Qb3 Nbc6 Qf7 Qbb2 Rb1 Qh7 Ra1 Qc7 d8N Qd1 d7 Qdd6 Rf1 Ne5 Ne6 Rb8 d8Q Rb6 Qc8 Qcd7 Qc5 Be7 Nf8 Qg7 Qg2 Qf5 Qg1 Qfh7 Rd1 Qbc2 Rd5 Qb2 Qa1 Qbc2 Rf1 h1N+ Kg1 f2+ Kg2 Qb2 Ng1 Qd2 Qd1 Qe2 Qdd4 Qb2 Qh5 f3+ Kh3 Qc2 Re1 Qd2 Re4 Qe1 Rf4 f1Q+ Kh2 Qfe2+ Kh3 Ng6 Rdf5 f2 Kg2 Ne5 Qf7 Qhg6 Kh2 Qf3 Kh3 f1Q+ Kh2 Qa6 Kh3 Q6h7+ Qh5 Qfe3 Nd3 Rb7 Qa5 Rb6 Kg2 Nf3 Qf7 Qb8 Qad5 Ba3 Nb4 Qd6 Q5c5 Ne5 Qd2 Nec6 Qdd4 Q3d2+ Kf3 Bb2 Qe7 Qec1 Ke4 Ne5 Qec7 Qaf1 Qf7 Qc7 Kd5 Qdh2 Qf2 Qce1 Qfd4 Rb5 Ke6 Rb6+ Qcd6 Qc6 Ke7 Qff3 Q6c5 Qd6+
2Q2n2/1Kbq4/2r3R1/q1n2Rb1/1PkPB2Q/1p2R1Q1/1PNnb1n1/2b2B1n w - - 0 1 legal: proof: f4 b5 c4 e5 a3 exf4 Qc2 d5 cxd5 a5 Qg6 b4 Qc2 b3 Qd1 Ra6 Kf2 Rb6 Ke1 Rb4 axb4 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 d3 f3 Bf4 f2+ Kd2 h6 Nc3 gxf4 Ne4 h5 g5 Kd7 Nf6+ Ke7 Ng4 hxg4 Ra3 Kd7 Ra1 Ke8 Kc3 Ke7 Kc4 Kd6 Kb5 c5 e4 f5 h4 c4 h5 f3 h6 g3 h7 g2 g6 a4 d4 a3 g7 c3 Qc1 c2 Qh6+ Nf6 g8B c1B Rh4 f4 Ne2 g1B Qg7 a2 Rg4 Be7 Qh6 Qd7+ Kb6 Ba6 Qf8 Bh2 Rb1 a1Q Nc3 Be2 Rg6 Na6 Nd1 Nc5 Qg7 Qa8 Be6 Rc8 h8Q Nh7 Ne3 Nf8 Qh4 Bg5 Nc2 Rc7 Ra1 Bg3 Ra5 Rc8 Bg2 f1N Bh1 f2 Bh3+ Nfe6 B3g2 Ne3 Bf1 f3 Qg8 Ng2 e5+ Ke7 Rb5 Nf8 e6 Qa1 Ra5 Bc7+ Ka7 Kd6 e7+ Bf6 e8R Qa3 Rg3 Bfg5 Re3 Bc4 Be2 f1N Bd3 Nd2 Bf1 f2 Qg7 Nf4 Be4 Ng2 Rg4 Be2 Qg8 Ke7 d6+ Kf6 Qg3 Qa2 Qh7 Ke6 Qhh4 Qaa4 Rf4 Qa3 Ra6 Qa5 Rff3 Bb8+ Ka8 Rc6 Rf5 Bc7 Ka7 Qe8 d7 Qc8 d8Q Qd7 Rf4 Kd6 Qc8 Ke6 Bd3+ Kd5 Be4+ Kc4 Rf5 Ne1 Bfg2 f1N Bh3 Ng2 Ka8 Nh2 Ka7 Ng4 Ka8 Ne1 Bf1 Nf2 Ka7 Ng2 Ka8 Na4 Kb7 Nh1 Rb6 Rc5 Rh6 Rc6 Rg6 Nc5+
3r2r1/RbqR2RQ/n3K1rr/BP1P1Pqq/4Q2Q/n6B/1p3N2/4q1kq w - - 0 1 illegal: No possible last move
2nR4/6pn/Q2bNB1b/2Bnn3/1RQ2P2/1b1RPB2/Pq1b1K2/1kn2r1q w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qc2 f3 Kd1 f2 Qb3 Kd7 Kc2 Ra6 Kb2 Ra3 Qd1 Ra8 Kc2 Ke8 Nf3 b5 Ng1 h5 Nc3 f5 Ne4 f4 Ba3 f3 Nf6+ Ke7 Ng4 hxg4 Bb2 Ke8 Bc1 Ra6 Kb2 Rf6 Kc2 Rf4 gxf4 Rh4 Nh3 Rh5 Ng1 Rh8 Kd3 Kf7 Ke3 Kf6 h4 Kf5 d4 c5 h5 g3 d6 g2 d5 c4 h6 b3 h7 c3 d7 b2 d6 b1Q Ba3 c2 Rh3 c1B+ Qd2 b4 Rg3 b3 Rg6 b2 Rg3 Qb6+ Bc5 Ne7 d8Q Nbc6 d7 Ne5 Nh3 g1B Bg2 Qh6 Ng5 Qh1 Kd4 f1N+ e3 f2 Ba7 Nh2 Rg4 f1N Rg3 Nhf3+ Kc5 Bf2 Rg4 Bh4 Qe2 Ng3 Qf1 Bd2 Bb6 Ne2 Qc7 Nc1 d8B Be6 Qa6 Bb3 Ne6 Ke4 Rg6 Nc8+ Kb5 Kd3 Bc5 Kc2 Bf6 Ng5 Bf3 Be7 Rh6 Rd8 h8R Nh7 Rh5 Rd3 Rd8 Bg5 Qcc6 Rd6 Qe4+ Rd3 Qc4+ Rc3 Kb4 Bh6 Rg5 Bd6 Rg1 Ne2 Rd1 Qc1 Kb5 b1N Kb4 Qb2 Kb5 Bc1 Rd3 Bd2 Kb4 Nc1 Kb5 Ng6 Kc6 Ne5+ Kd5 Na3 Kd4 Nb5+ Ke4 Nc7 Rb1 Nd5 Bg2 Ng6 Kf3 Ne5+ Kf2 Ne2 Rg1 Nc1 Bf3 Kb1 Rg2 Ne2 Rg1+ Rc1 Rf1 Rd1 Re1 Nc1 Re2 Ba5 Rc2 Bd2 Rcc3 Bc2 Rb3 Rg1 Rb8 Bb3 Rb4 Rf1+
B1N3rR/R1P1Rn2/4b2r/1P1p1q1k/bK1r1r2/1P6/1Q2r2b/Q1N2bQq w - - 0 1 illegal: No possible last move, all moves rejected
qQ1qN2q/P1N4K/R2B1pN1/1rP2P2/q1Q1r1q1/rQ1R4/2bb1q2/k5r1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 d5 b5 d3 b6 d4 Ne2 Na6 Bh6 Nc7 Ng1 axb6 Be3 b5 Bc1 b4 g4 h5 g5 f6 g6 Kd7 Be2 Nd5 exd5 Nh6 Bf3 Nf7 Bg4+ hxg4 gxf7 Rh5 Qd2 Rh7 Qd1 Rh8 Kd2 Kd6 a4 Kc5 c4 g5 h4 b5 f4 e5 h5 b3 d6 Kb4 a5 e4 a6 b2 h6 e3+ Ke1 d2+ Ke2 d3+ Kf1 g3 Kg2 g4 c5 e2 h7 e1Q d7 Bh6 f8Q Qee8 Qg7 Qf8 Qe1 Kb3 Nf3 d1Q Qe2 b4 Ne5 d2 Nc3 b1Q Ne4 Qa2 Nd6 Qdc2 Rg1 d1Q Ng6 Bg5 Be3 Kb2 Qg8 b3 Ne8 Qd4 Bf2 Qda4 Rgd1 Bb7+ Qf3 Be4 f5 Bd2 Qc4 Rg8 h8Q Ra7 Kh1 g2+ Kh2 g3+ Kh3 g1R Kh4 g2 Kh5 Rg7 Qe3 Re7 Bg3 Bd3 Bd6 Re4 Rf1 Qd1+ Rf3 Bc2 Qed3 Qe1 Qdd5 Q2a3 Rd3 Qf2 Ra2+ Kb1 Qb7 b2 Qbb3 Qc6 Qhg8 Qaa4 Qh8 Qca8 Qhg8 Rb7 a7 Rb5 Qh8 Qb4 Ra5 Qa4 Ra6 Ka1 Qhg8 b1R Qh8 Qde7 d8N Rb2 Ne6 Qed8 N6c7 Ra2 Ne7 Ra3 Kg6 Rh1 Qh2 g1Q+ Kh7 Qg4 Ng6 Rg1 Qg2 Rd4 Qb7 Re4 Qb8 Qh8+
1b1R1qQr/k1N5/b3N2p/Pn1Pr1qB/4Q2P/2npKQ1q/6bn/3N1R2 w - - 0 1 legal: proof: c4 g5 f4 Nc6 b4 Nb8 b5 Bh6 c5 Bf8 b6 axb6 Bb2 bxc5 Ba3 Nc6 Bc1 Nb8 fxg5 d5 e4 Ra5 exd5 Ra4 d6 Ra8 d4 Bf5 d5 Be6 Be3 Bc8 Bd4 cxd4 Ke2 Kd7 a4 f5 g4 c5 h4 b5 a5 e5 g6 d3+ Kf3 f4 g5 h6 g7 b4 g6 e4+ Kf2 c4 Qa4+ Nc6 Qd1 f3 Qe1 c3 Qd1 e3+ Ke1 c2 Qc1 b3 Qd2 c1Q+ Qd1 b2 Ra3 e2 Kf2 Nf6 g8Q Ba6 g7 Kc8 d7+ Kb8 Rc3 Qg5 Na3 b1N Qe6 Na7 g8Q Bd6 Nb5 Qf8 Nc7 Nb5 d8N Ka7 Nh3 Be5 Rc6 N1c3 Rd6 Bf4 Qe4 Ng4+ Ke1 Bh2 Nde6 Re8 Nf2 Bg3 Bh3 Nh2 Bg4 Be5 Bh5 Bf4 Nd4 Re5 Rd8 Bg3 Rf1 Bf4 Qe3 Bg3 Kd2 e1Q+ Kc1 Qe2 Qa4 Bf4 Nd1 f2 Qb4 Qeg4 Kd2 Qh3 Nde6+ Qc5 Qe4 Bg3 Rg1 f1B Q3f4 Bg2 Rf1 Qf8 Qf3 Re3 Q4e4 Bd6 Qef4 Re5 Qe4 Qgg7 Qff3 Qgf6 Ke3 Qg6 Ne8 Bb8 N8c7 Qg5+
3Kbr1b/1q1Ppn1N/3npQ2/1Q6/NRP4Q/1n2P2q/b4B1N/1kr2rB1 w - - 0 1 legal: proof: g4 h5 gxh5 b5 a4 c5 axb5 Qc7 c3 Bb7 b6 Qd8 Qb3 Bc8 Qe6 fxe6 b4 d5 b5 d4 Ra4 d3 Bg2 Bb7 Rb4 cxb4 Bd5 Ba6 Bb3 Bc8 Bc2 dxc2 d4 Kf7 Kd2 Kf6 Kd3 Kf5 Kc4 Ke4 Kc5 a5 f4 g5 h4 b3 f5 g4 b7 a4 c4 a3 d5 a2 h6 a1R f6 b2 f7 g3 h5 g2 b6 R1a2 h7 Bd7 d6 R8a4 h6 Nf6 Nf3 g1Q+ Be3 c1N Bf2 Qd1 e3 Kd3 Nh2 Kc2 Nc3 Nc6 b8B b1B b7 Be8 d7 Qc8 Kb6 Bg7 f8N Ne4 Bg1 Nd8 Bg3 Qd2 b8Q Ra1 B3f2 Nf7 Qb7 Ra7 Na4 Ba2 Qd5 Ned6 Qb5 Rg8 h8Q Nb3 h7 Bf6 Qg7 Rf1 h8Q Kb1 Nh7 Rf8 Qg3 Qc2 Qh4 Qf5 Qg7 Bb2 Qgf6 Qb8+ Kc6 Qa8+ Kb6 Ra6+ Kc7 Qh3 Qhh6 Qe4 Qfh4 Bh8 Q6f6 Ne5 Kd8 Qb7 Qd5 Ra5 Qc6 Rd5 Qb5 Rdd1 Qf7 Kc2 Qg8 Nd4 Qg7 Rfe1 Qgf6 Rb1 Nf3 Kc1 Bh2 Rd1 Re1 Ra1 Re2 Rf1 Rb2 Rb1 Rb4 Nb3 Bhg1 Kc2 Nb2 Rbc1 Na4 Kb1 Nh2 Nef7+
QRQ2Nr1/qP4PK/8/1P1pq3/r2k4/b1npb3/bR1N2Rq/Q1n2B1n w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Ke2 a5 Kf3 e5 Ke4 Ke7 b4 Kf6 c4 f3 h4 d3 g7 g4 h5 g3 h6 f2 b6 g2 b5 a4 h7 a3 c5 a2 c6 Qc7 b7 Na6 Qa4 Nc5+ Ke3 e4 Qa6 Ke5 f6 Ne7 f7 Nd5+ Kd2 Nc3 Ke3 Rg8 h8Q Nb3 Nd2 Nc1 Rh2 Ba3 Rb1 a1Q Nh3 g1B f8R d6 Rb3 Be6 Rb2 Ba2 Rb8 d5 Ng5 Qd6 c7 Qh6 Rg2 Qh2 Qc6 Ra4 Qc4 Kf6 Kd4 e3 c8Q e2 Ne6 e1Q Nf8 Qe6 Qb4 Qf5 Ke3 Ke5 Qa5 Qg5+ Kf3 Kd4 Qa8 Qf6+ Kg4 Qa6 Kg5 Qa7 Rb3 Qb2 Kg6 Qe5 Qh1 Qc2 Be2 f1N Rb2 Be3 Kh7 Ng3 Qe1 Nh1 Bf1 N1e2 Qa1 Nc1 Nc4 Qe2 Nd2 Qf2 Nd7 Qfg3 Nf8 Qh2+
rn2qKQr/P5NQ/q3N3/B1Pk1p2/N1qr1R1p/nPQ5/Bb6/3b1b2 w - - 0 1 legal: proof: f4 a5 h4 e5 d4 exf4 d5 g5 hxg5 c6 Nd2 cxd5 Nb1 d4 b3 a4 Nd2 a3 Rb1 Ra7 Rh6 Ra5 Rh1 Ra8 g4 b5 Rh6 b4 Rb6 Na6 Rb7 Nb8 Rb2 axb2 a4 Bh6 Rxb4 Bg7 Rb7 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 b1R Kf5 h5 c4 f6 Kg6 d3 Kf7 f5 e4 f3 e5+ Kc5 e6 d5 a5 d4 e7 h4 e8N f2 g6 Ra7 g5 Rh6 g7 Bd7 a6 Nf6 g8Q Qa5 g6 Ng4 g7 Ne3 Ne2 Bb5 Qc2 Rh8 Nc3 Ra8 a7 Qa6 Nf3 d2 Ng5 d1B Bd2 d3 Na4+ Kd4 c5 Kd5 Be2 f1Q Ne6 Nc4 Qh7 Na3 g8Q Bg7 Ba5 d2 Bd3 Bb2 Qc3 Qe1 Bc2 Bf1 N8g7 Qe4 Rb5 Qc4 Kf8 Rc1 Bb1 Rc2 Qh3 Rc3 Qe3 Rd3 Ba2 Rd4 Rb6 Bg4 Qe1 d1Q Qc3 Qe1 Rb7 Bd1 Rd7+ Kc6 Rd5 Qe4 Re5 Qe3 Re4 Kd5 Rf4 Qee2 Qd3 Qh5 Qc3 Qe8+
2BbQQn1/PnP1prq1/2q5/1N1Prn1R/2b1N1B1/2pnknQ1/6K1/3B4 w - - 0 1 legal: proof: b4 a5 h4 axb4 e4 f5 exf5 g5 hxg5 c6 a4 c5 c4 d6 Ba3 b3 Bb4 Bg7 Ra2 Bh6 Rc2 cxb4 c5 Bg7 c6 Bf8 Rc5 dxc5 g4 Kf7 f4 h5 Kf2 b5 d4 c4 d5 b2 a5 h4 a6 b3 f6 Kg6 f7 h3 a7 b4 Kf3 c3 Nd2 b1N Ne2 h2 Nc4 b2 Bh3 b3 Bf1 Rh5 Rg1 h1N Qc1 Na3 Qe3 b1Q Ng3 b2 Be2 Bg7 f8Q Be5 Ne4 Nf2 Bd1 Na6 Ncd6 Nd3 Kg2 Qd7 Nb5 Bc7 Rh1 Nc2 Qg3 Bd8 Rh3 Qe6 Qe8+ Qf7 Rh1 Nac5 Rh4 Nd4 f5+ Kh7 g6+ Kh6 f6 Qg7 f7 Nb7 f8Q Nf5 Rh2 Qa2 Rh1 Qa4 Rh4 b1N c7 Rb8 Rh1 Nd2 Rh3 Nf3 Rh2 Rh4 g5+ Kh5 Rh3 Qc4 Rh2 Qc6 Rh1 Na5 Rh3 Ba6 Rh2 Nb7 Rh3 Qgf6 g7+ Qf7 g6 Qff6 Qf2 Kg4 Rh2 Kf4 Qg3+ Ke3 Rh1 Ngh6 g8B Rh5 Be6 Ng8 Bc8 Rh7 Rh5 Rf7 g7 Qg5 Nd4 Bc4 Nb5 Ngh6 g8B Qg7 Bh7 Ng8 Qg4 Na5 Qg3 Rb6 Bg6 Nb7 Bh7 Qcf6 Bg6 Re6 Bh7 Re5 Bg6 Nd4 Bgf5 Qc6 Bg4 Nf5
2B3K1/5Q1Q/nbNr1r2/1Nnr3P/1p1p2bB/5kP1/P1RnN3/qqQ2n2 w - - 0 1 legal: proof: d4 a5 e4 f5 b4 axb4 g3 c5 Nd2 cxd4 exf5 h5 Rb1 h4 Rb3 g5 Re3 h3 Re2 Rh5 f4 Rh6 fxg5 Rh8 Rg2 hxg2 Ke2 Kf7 Kf3 d5 Kf4 b5 Ke5 b3 h4 b2 c4 b1N c5 d3 h5 b4 f6 Ra5 c6 Rh6 c7 Bg4 c8N Na6 Ndf3 d2 Qb3 d1R Rh3 Nd2 Bc4 Nf1 Ne2 g1N Nfd4 Nf3+ Kf4 e6 Qc2 N3d2 Ke5 Bc5 Ne7 Bb6 Nb5 Qe8 Kd6 e5 Rh2 e4 Nc6 e3 Bb3 Qe4 g6+ Ke8 g7 Kf7 Qc3 Qb1 Bc2 d4 Bf5 Qa1 Bc8 Qb1 Ng1 e2 Qa1 e1Q Ne2 Nc5 Qb2 Ne7 Ke5 Nd5 Qa3 Nde4 Bg5 Nc7 Qc1 N7a6 Bh4 Qc3 Kd5 Qca1 Rg2 Ned2 Kd6 Kg8 Ke7 Kh7 f7 Rd6 Kf8 Kh6 Kg8 Re1 f8Q Rf6 Nec3 Ree6 Ne2 Rd6 Qf7 Ra3 Kf8 Raf3 g8Q R3f5 Rf2 Re5 Rf3 Ref5 Rc3 Rfd5 Rc2 Rf3 Be7 Rff6 Qh7+ Kg5 Kg8 Be6 Bd8 Kg4 Be7 Kf3 Bd8 Bg4 Be7 Rff5 Bh4 Rff6
3Krb2/b7/Qn2QPN1/1Bp1R1n1/Nkq2q1P/R3p3/qrr1P3/qR4Q1 w - - 0 1 legal: proof: c4 a5 g4 f5 b3 fxg4 a4 b5 axb5 d5 Bb2 dxc4 Ba3 Nh6 Bc1 Ng8 b6 h5 Bg2 a4 Kf1 a3 Bb2 Bd7 Ke1 Bb5 Be5 Ba4 bxa4 h4 Bg3 hxg3 Bh3 Ra7 Bf1 Ra8 h4 Kd7 d4 Kc6 Kd2 e5 Kc3 g5 f4 e4 a5 Kb5 f5 a2 b7 g2 d5 g3 Kd4 c3 Ke5 g4 Ke6 c2 d6 c1Q a6 Nh6 a7 Kb4 d7 Qc4+ Qd5 Nf7 f6 Rh7 Nh3 g1R Bg2 Rc1 Na3 Rc2 Nb5 c6 Rhf1 Qa5 d8R Nd7 b8Q Nb6 Re8 Qa6 Bf3 g2 Nf4 g1Q Ng6 g3 Nc3 g2 Qh2 Qe3 Na4 Rb8 a8Q Qf4 Qg1 Qa5 Qa6 Rb7 Rad1 a1Q Rd3 Rg7 Ra3 Qaa2 Qh2 g1B Rd1 Bgc5 Qg1 e3 Be4 Bd4 Bd3 Qa1 Nb2 Qa4 Rb1 Qca2 Bb5 Q4b3 Ne5 Qc4 Re7 Ng5+ Kd6 Qf1 Ng6 Qf4+ Qe5 Rb8 Kc7 Rb7+ Kd8 Rh7 Rd7 Re7 Na4+ Qcb3 Qc7 Na8 Qh2 Ba7 Qcb6 c5 Qe6 Rb6 Bd3 Rb7 Qad6 Ka5 Qg1 Rb6 Ba6 Qbc4 Qc6 Rb7 Rd5 Rbb2 Bb5 Kb4 Qa6 Nb6 Re5 Re8+
n6q/3Qq3/1Q2PR1N/rb1p3K/Qn3qP1/2b1Bb2/1N1N1Pkp/qr2R3 w - - 0 1 legal: proof: h4 f5 a4 e5 d4 exd4 e3 Ke7 h5 b5 axb5 Kd6 h6 c5 Qf3 c4 Bd3 cxd3 Qxf5 gxh6 Qf3 h5 Qf7 h4 g4 Ke5 b4 Ke4 c4 h5 c5 a5 b6 d5 b7 a4 b5 h3 c6 h2 b6 d2+ Ke2 d1B+ Kd2 h4 c7 a3 Ne2 a2 Qe7+ Kf3 e4 h3 e5 d3 e6 Nc6 b8Q Bd7 c8N Nf6 b7 Bg7 Qf4+ Kg2 Ke3 d2 b8Q Ne8 Qa4 Bc3 Kf4 Nc7 Kg5 Nb4 Ng3 Bb5 Nf5 Ra5 Nh6 Bf3 Nb6 d1Q Kh5 Qd4 Nd2 Na8 Qd7 Qf4 Nbc4 Qe7 Qb6 Rb8 Nb2 Rb7 Re1 h1Q Re5 h2 Rf5 Qg1 Rb1 a1Q Rf6 Qf1 Nb3 Qd3 Be3 Qdh7 Nd2 Qh8 Rh1 Rc7 Rf1 Rc4 Re1 Rd4 Nb3 Rd1 Nd2 Rb1
NB1N1b2/2n1b3/Qqr1p1Qn/P1pBrb2/4R1qP/2P1Q1b1/2N3kn/1K6 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 e4 Ke7 e6 Ra3 Qg4 Kd6 e7 Ra8 Qd1+ Kc6 g4 h5 a4 Kc5 Ra3 bxa3 gxh5 Kc6 Kd2 Kd6 e5+ Kd5 e6 fxe6 Bc4+ Ke5 Bf1 Kf6 Ke1 Kf7 Kd2 d5 e8Q+ Kf6 h4 Kf5 f4 Ke4 f5 g5 f6 b5 h6 c5 a5 a2 f7 a1B h7 g4 Qe7 d4 Ba3 b4 Kc1 b3 Qf6 g3 Ba6 g2 Qe7 d3 Qa7 Bb7 Ne2 Kf3 Qd2 g1B Bc4 Be4 Qe3+ Kg2 Nec3 Nh6 Bb2 Bf2 Bd5 Bg3 Nb5 Na6 Be5 Nc7 N1a3 d2+ Kb1 b2 Qa6 Rc8 Re1 d1N Bd6 Qg5 Be5 Be7 f8Q Qg4 Qf6 Nf2 Qg6 Rhf8 h8N Rf5 Bd6 Re5 Nf7 Bf8 Nd8 Be7 Bc4 Bf5 Re2 Na8 Bb3 Rc6 Bb8 Nc7 Bd5+ Qe4 Re1 Nfg4 Qf7 Nh2 Qg6 Ne8 Nc7 Bf8 Na8 Nc7 Qd4 Qf3 Re4 Qe2 Ka2 Qg4 Qe3 Be7 Kb3 Bf8 Kc3 b1Q+ Kd3 Qb6 c3 Bb2 Kc2 Be7 Kb1 Bc1+ Qb5 Bf8 Nc2 Bd2 Qe1 Bg5 Qe3 Qa6 Qb7 Bge7 Qc8 Qa7 Qa6 Qb6+
1K2Q3/1q1NQ1r1/B2P4/R1rR3R/1p2np2/2qPqPnr/BBrk4/4b2b w - - 0 1 legal: proof: e4 c5 a4 g5 b4 b5 h4 gxh4 Ke2 d5 exd5 c4 Ke1 a5 Nc3 axb4 Nce2 Bf5 Nd4 Bc8 Nb3 cxb3 axb5 Qc7 Be2 Qb6 Bf1 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 f5 c4 h5 g4 b2 g5 b1R g6 h3 g7 h2 d3 f4 d6 h4 b6 h3 b7 Nh6 g8B Qb6 Qf3 Nd7+ Ke6 Kd4 b8R Kc3 c5 Rh7 c6 Bg7 c7 Qe3+ Qe4 Rb2 Ra5 Nf6+ Ke5 Nf5 Ra7 Bb7 Bd5 Ng3 Ra4 Rc2 Bb2+ Kd2 c8Q Ra5 Bg2 Rac5 Ra5 Bh8 Ke6 Rg7 Qe5 Nfe4 Kd7 Ba8 Qg5 e5+ Qe7 Bb7 Qe8 Ba8 Ne2 Bb7 Nc1 Ba8 Rg1 h1Q Rbb5 h2 Ba2 Bd5 Bf3 Qg2 Rf1 h1R Re1 Rh6 Rh1 Rh3 Rh2 Bb7 Nb3+ Ke1 Bg4 Nc3 Q7f7 Rc7+ Kd8 e4 Qeg8 Rg6 Nc1 Rhh6 Bb1 Qc5 Ba2 e3 Bf3 e2 Qgf8 Qe3 Q8e7 Kd1 Bfd5 e1Q Qfe8 Bf6 Bg8 Rg7 Nb3 Qd5 Be6 Qdc5 Bh3 Bh1 f3 Nce4 Bc8 Bc3 Ba6 Qb6 Rh4 Rc4+ Kd7 Qc6+ Kd8 Ke2 Rd5 Rhh7 Nc5 Qa1 Bc1 Be1 Nd7 Qc3 Bb2 Kd2 Rh3 Rg4 Rh6 Rhg7 Rh7 Rh4 Rhh5 Rh3 Nc5 Qb5 Kc8 Qa4 Kb8 Qc6 Nd7 Rc5 Rh8 Ng5 Rh7 N5e4 Rhh5 Qb7+
q2NB1BR/4n1Nr/k1P2PQq/2pbK1Q1/4q1Q1/2Pr1q1n/4p3/1bbN4 w - - 0 1 legal: proof: f4 b5 b4 f5 e4 g5 a4 c5 axb5 Na6 d4 Qb6 g4 Nb8 d5 Qc6 dxc6 fxe4 f5 h6 Bf4 Na6 Ra3 Nb8 Rg3 gxf4 g5 Nf6 g6 Ng8 Rg5 hxg5 Kd2 Kd8 Kc3 Kc7 h4 Kb6 f6 e5 h5 d5 h6 a5 g7 e3 h7 a4 Qc1 a3 Nh3 e4 Rh2 a2 Bg2 a1Q+ Qb2 f3 Rh1 g4 Rf1 d4+ Kc4 f2 Kd5 g3 c3 e2 Ng5 e1Q Qe2 d3 Bf3 e3 Ne6 g2 Na3 g1Q Bh5 d2 Nc2 d1B Ke5 Qh1 Qg4 Bf3 Be8 Qh6 Rh1 Ne7 g8B f1Q Ng7 Na6 Rh5 e2 Ne3 Qh4 Nd1 Nc7 Qg5 Ka7 b6+ Ka6 b7 Bf5 b8Q Ne6 Qc7 Qg4 Qd7 Bb1 Rh4 Bd5 b5+ Kb6 Rh1 Qff3 Qg6 Ka5 b6 Ng5 b7 Nh3 b8Q Ka6 Qb3 Qb4 Qdg4 Rd8 Qbc2 Qaa4 Q6g5 Qb7 Rh2 Qa8 Qce4 Bc4 Qeg6 Rd3 Rh1 Bd5 Bgf7 Rg8 h8N Qc4 Be6 Qb4 Nf7 Rh8 Nd8 Rh7 Bg8 Qbe4+ Kd6 Qh5 Nge6 Bh6 Ng7 Qb4 Ke5 Qh4 Q5f5 Bc1 Qfg5 Qh6 Nge6 Nf2 Q5h4 Rg7 Bef7 Qh7 Qhg5 Qh5 Rh4 Nh3 Be8 Qh8 Rh7 Rf7 Rh4 Qg7 Rh7 Qh6 Rh8 Rh7 Ng7 Qbe4+
2q5/2bQ1p2/1bR1K2B/PPp3Q1/1nr1B1r1/rk1nN2P/b1R3R1/Qb2q3 w - - 0 1 illegal: Other
1RrnnN2/qp4bb/3q2Pb/2q2p1Q/B7/2k1P1P1/B1b2QK1/R2BR2r w - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 f5 b4 c5 dxc5 axb4 Rh3 f4 Rh5 Nh6 Rh1 Ng8 e3 f3 Kd2 Bg7 Nc3 Na6 Bb2 Nh6 Nce2 fxe2 f4 Nb8 f5 Ng8 f6 Bh6 f7+ Kf8 Bf6 exf6 Kc1 Ke7 Kd2 Bf8 Ke1 Ke6 Kf2 e1B+ Kf3 d5 a4 h5 c4 h4 a5 h3 a6 b3 a7 h2 g3 b2 c6 b1Q c5 d4 c7 Kd5 c6 d3 Ra3 Kc4 Kg2 Qd6 Nh3 Qa2+ Be2 Bc3 Re1 Bf5 c8B Bh6 f8Q Bh7 c7 Nc6 g6 Nd8 Bd7 Rc8 a8R Ba1 R3a7 Kc3 Nf4 d2 Rb8 Qc2 Ba4 h1Q+ Kf2 Qh4 Ne6 Qhd4 Kg2 Qc1 Ra6 Qa7 Qf7 Qca3 Nf8 Q3c5 Bc4 Bb2 Qh5 d1B Be2 Bc2 Bd1 Ba1 Qa2 f5 Ra5 Bd3 Qf2 Nf6 Ra6 Ne8 Ra5 Ne6 Ra6 Bc2 Ra5 Rd8 c8B Bb2 Bcd7 Rc8 Bb3 Nd8 Ra1 Kd3 Bc6 Bbg7 Bca4 Kc3 Ne6 Rf8 Ba2 Rf7 Nf8 Re7 Bc6 Re4 Bd7 Rh4 Ba4 Rh1
3q1rbR/QpNP3Q/qBPR2p1/3r2qn/bK2n3/2N4N/Pq1b1Q2/k7 w - - 0 1 legal: proof: e4 d5 b4 a5 g4 axb4 c4 c5 Qe2 f5 exf5 h6 Qe4 h5 gxh5 b3 Qd4 Ra4 Qc3 Ra7 Qb4 cxb4 c5 Ra8 Bc4 dxc4 h4 Kd7 d4 Kc6 Kd2 Kd5 f4 e5 f6 g6 f7 b2 f5 c3+ Kc2 Kc4 d5 e4 f6 e3 d6 e2 c6 e1Q h6 Qe2+ Bd2 Be6 d7 Ra5 h5 Na6 h7 Nc5 h6 Ne4 Nh3 Rd5 Rd1 Bc5 f8Q Be3 f7 Ngf6 Rh1 Rg8 h8Q Nh5 h7 Qf1 Be1 Bd2 Bf2 Qe2 Qf6 Qf1 Qd6 Rf8 h8Q Qe2 Qb8 Qd3+ Kd1 b3 Qh7 Kb4 Qa7 Qa6 Bg1 Kc4 Ke2 c2 Bb6 c1Q Nc3 b1B Qf2 Bc2 Rb1 Qg1 Rd1 b2 Rh2 b1Q Rh1 Rg8 f8N Ba4 Rh2 Bf7 Ne6 Rf8 Nc7 Qb2 Rh1 Qgg5 Rh2 Rb5 Rhh1 Kb4 Kd3 Ka3 Kd4 Bg8 Kd3 Qa5 Rh2 Rd5+ Kc4 Qc2 Rhh1 Kb2 Rh2 Qa6+ Kb4 Bf4 Rd3 Bd2 Rd4 Ka1 Rd3 Rc5 Rd6 Rd5 Qh6 Neg3 Ng1 Nf6 Rh4 Qc1 Nh3 Nfe4 Qg7 Qc2 Rh8 Nh5 Qh7 Qb2#
2n5/Pk2q1Pb/3q4/nr2N3/RBRN2Q1/K1Qp1P1q/N1r3qp/4bnQ1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 exf5 g5 h4 Nf6 hxg5 Ng8 a3 Nf6 Bc4 Ng8 Ba2 b3 Ke2 bxa2 Kf1 Ra7 Ke1 Ra8 Kd2 e5 g4 b5 c4 h5 Kc2 d5 Kb2 Kd7 c5 Kc6 f3 b4 f6 e4 a4 h4 f7 d3 a5 d4 a6 b3 g6 e3 g5 h3 g7 h2 a7 e2 g6 e1Q Nh3 d2 Ng5 d3 Qe2 d1N+ Ka3 b2 Be3 Qd6 Bd4 Bf5 Qe6 Ne3 Bc3 Kb7 Bb4 Rh5 Nc3 Ne7 g8Q b1Q Qf6 Bg7 f8N Nbc6 Nfe6 Rc8 Nd4 Na5 Nf7 Qc2 Ne5 Nf1 Qg5 Qe3 Qg4 Qg2 Rc1 a1Q+ Na2 Rc7 Rc4 Nc8 Rg1 Qg5 Rh1 Qge7 c6+ Ka6 Rg1 Bf6 Qg7 Bh4 Rh1 Be1 Qg8 Rb7 c7 Rb5 Qg7 Qh3 Qg1 Rg5 Qf6 Rg3 g7 Rg2 Qh4 Bh7 Qf4 Rc2 Qfg4 Nb6 c8Q+ Nb7 Qce6 Nc8 Qh6 Kb6 Qd2 Na5 Qc3 Kb7 Qe3 Ng3 Rf1 Qd1 Qg1 Qd2 Rf2 Nf1 Re2 Qed7 Re4 Qdg2 Rc5 Ka6 Nf5 Nb7 Ba5 Nd8 Ra4 Kb7 Nd4 Nc6 Bb4 Na5 Rc4 Q7e7
2n1r3/r1P1b1q1/ppQN2Rb/5P1K/r1n5/Qn1NP1nk/4Nr2/3R1RB1 w - - 0 1 legal: proof: b4 e5 g4 c5 d4 h5 gxh5 exd4 a4 cxb4 e3 f5 a5 f4 a6 b6 Kd2 f3 Be2 Bb7 axb7 fxe2 c4 Ke7 h4 Kf6 f4 Kf5 h6 Kg4 h7 d5 h5 g5 c5 b3 c6 b2 c7 d3 f5 d4 h6 a6 Nc3 b1N+ Ke1 d2+ Kf2 d3 Ra4+ Qd4 Qe1 d1R Qf1 d2 Ra1 Nd7 b8Q Ne5 Nd5 Nc4 Bb2 Qg7 Qe8 Ne7 Nf4 Nc8 Qc6 Ra7 Be5 e1B+ Ke2 Bf2 Nd3 Bh4 Bh2 Rg8 Qf2 Rf1 h8N d1R h7 Nbd2 Nf7 Nb3 h8R Be7 Qe1 Re8 Qb4 Rf4 Rh5 Rdf1 Rd1 Bf8 Qa3 R1f2+ Ke1 Be7 Ne2 Kh3 Nd6 g4 Rh6 g3 Rf1 g2 Rg6 Bhg5 Bg1 Bh6 Nd4 Rd2 Ne2 Rd4 Kf2 Ra2 Nb2 Rd2 Kf3 Rc2 Qb4 Ra4 Qa3 Rd2 Nd3 Ra2 Nd4 Rf2+ Ke4 Ra2 Bf2 Kh2 Kf3 g1N+ Kg4 Ne2 Kh5 Kh3 Bg1 Nc3 Rf6 Ne4 Rg6 Rf2 Ne2 Ng3+
Nk6/1p1nK3/3q1P1p/BBP2Q2/2rQQ3/r1B2P1n/1b2rn1n/rb4RR w - - 0 1 legal: proof: h4 c5 c4 a5 e4 d5 b3 g5 Qg4 f5 exf5 gxh4 Na3 a4 bxa4 Nd7 Nc2 Nb8 Nb4 cxb4 c5 Bd7 Qe4 Bc8 Qc4 dxc4 Ke2 Kd7 Ke3 Kc7 Ke4 e5 g4 c3 d4 b3 f6 b2 g5 b1R d5 h3 d6+ Kc6 f3 c2 a5 h6 a4 h2 a6 Be6 a7 Bd5+ Kf5 e4 d7 Kc7 g6 e3 g7 e2 a5 e1N a6 Nd3 Nh3 Bd6 Ng5 Ba2 Bb2 c1R Bc3 Nf2 Bb5 Nh3 Rg1 Rb3 Ke6 Ne7 g8Q h1N Qg6 Re8 Qf5 N1f2 Rh1 Rc2 Rag1 Ng6+ Kf7 Ree2 Qe4 Qh8 d8B+ Kc8 Ke6 Be5 Bda5 Bb1 Kf7 Rc1 Ne6 Nd7 Nc7 Ra3 Ke6 Bd4 Kd6 Nge5 Ke7 Qg8 Qf5 Neg4+ Qe4 Rb8 a8Q Qd5 Qa7 Ra1 Na8 Nh2 Qb6 Qc6 a7 Qd5 Qbe6 Qd6+ Ke8 Ra3 Q6f5 Ra1 Nc7 Rcc2 a8Q Ra3 Qa7 Ra8 Qb6 Ra6 Na8 Kb8 Qc6 Be5 Qd4 Ra1 Qce4 Rc1 Bd2 Rc4 Bac3 R6a4 Ba5 R4a3 Bdc3 Bf4 Kd8 Bc1 Ke8 Bb2 Kd8 Qc6 Ke7 Qd6+
1n1nk1qQ/5N1n/1BbQ2n1/Q1p3pq/1rP1PR1n/6BN/1b4BP/bK6 w - - 0 1 legal: proof: e4 a5 b4 h5 g4 hxg4 a4 b5 axb5 d5 b6 dxe4 b5 Rh3 Bd3 Rh5 Bf1 Rh8 f3 e5 Kf2 e3+ Kg2 e2 Ra3 e4 Rb3 e3 Rb4 axb4 Kg3 Ra3 Kg2 Rd3 Kg3 Rd4 Kg2 Re4 fxe4 Be6 Nf3 Bf5 Ng1 Bc8 d4 Rh7 c4 Qg5 d5 e1N+ Kg3 f5 d6 c5 b7 b3 Nd2 e2 Kf2 f4 Ba3 f3 Bg2 b2 Bh3 b1N Bf1 Qh5 Ke3 g5 Qa4 f2 Qc2 Nc6 b8B g3 b6 g2 b7 Nf3 Kd3 e1N+ Ke3 Nfd4 Qc1 Bd7 Ndf3 Nd3 Ne5 Ne6 Nh3 g1B Qb2 Nd2 Qb4 Nf3 Bg2 Nh4 Kd2 f1Q Kc2 Qff7 Kb1 Bd4 Rf1 Nf6 Qa4 Qg7 Bb4 Ba1 Ba5 Qg8 Bd8 Re7 Qa5 Ndf4 Nf7 Nh7 Bbc7 Bh6 b8Q Nfg6 Qb2 Nb8 Qh8 Bc6 d7+ Kf8 Bg3 Bhg7 Bdc7 Bgb2 d8Q+ Be8 Qd7 Nd8 Qd1 Bc6 Rf4 Ke8 Qd6 Rd7 Qd1 Rd3 Bb6 Rb3 Qd6 Rb4
4Q2R/2q2br1/1KR5/1P3N1n/B1pPQ2N/q1Rrr3/1kp1q1P1/bq3qQ1 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 h4 g3 b3 Ke7 Ba3+ Ke8 Bc5 Nd7 Bf2 Ndf6 Rh2 Ne4 Rh1 Ng5 hxg5 Ba6 Qc1 gxf2+ Kd1 Bg7 Qc2 Bc8 Kc1 Bh6 Qd1 Bf8 Kc2 Kd7 Kc3 Kd6 Kb4 Kd5+ Ka5 Kd4 e4 h5 b4 c5+ b6 f5 e5 c3 e6 c4 g6 c2 e7 h4 e8R f3 d3 h3 g7 h2 Nc3 f4 Re6 Rh3 Rb1 Qc7 Re5 Nf6 g8Q Nh5 Re1 Be6 Qd2 Bf7 Re6 Bg7 Qc1 Rd8 Be2 f1R Ne4 f2 Ng3 Kc3 Qe8 f3 Nf5 Bd4 Kb5 a5 b7 a4 b8Q a3 Qa8 a2 Qe4 a1Q Rc6 Qa3 Rb2 Re1 Qa1 f1Q Rb3+ Kd2 Rc3 f2 Bf3 Re3 Bg4 Rhg3 Bh3 Rg7 Nf3+ Ke2 N3h4 Kd2 Qb1 Qe2 Qg1 f1Q Bg4 Kc1 Bh3 Qc8 Bg4 Bf6 Kb6 Kb2 Ne7 Bd4+ Rc5 Bg6 Bd7 Qfa1 Rb3+ Ka2 Qe1 Q1b2 Ba4 Qb1 b5 Nf6 Nf3 Ba1 Rc3 Kb2 Rc6 Bf7 Nf5 Rd6 Rf1 h1Q Rg1 Qh4 Rh1 Qhf2 Rh8 Nh5 Qg1 Qff1 N3h4 Rf3 Qd5 Re6 d4 Rd3 Qf3 Ree3 Qfe4 Qc7+
2r2n1n/Qr2b3/2N1Qqqp/4Pn1K/1P5Q/1RN2n2/1B1rnP1p/2B3kB w - - 0 1 legal: proof: a4 f5 b4 g5 d4 b6 g4 Ba6 h4 Bb5 a5 Ba4 c4 Bb5 cxb5 gxh4 g5 e5 dxe5 bxa5 Ra3 Na6 Rg3 Nb8 Rg4 fxg4 e4 Kf7 Ke2 Kg6 b6 Kh5 g6 d5 g7 c5 b7 g3 Kf3 d4 e6 g2 e5 c4 e7 a4 Qd2 a5 Qd3 h6 Qd1 c3 Qe1 a3 Rh2 a4 Bf4 h3 e8Q+ Kh4 Rh1 c2 Nc3 c1N Qc6 a2 Bh2 a1N Qe3 a3 Qa6 d3 Nb5 a2 Qc5 d2 Qc3 d1R Qd3 Nc2 Na3 a1Q Bf4 h2 Nc4 Ne2 Qa7 Rh7 Qdd4 Qb1 Na5 Ne7 g8Q Nd7 b8B Ne3 Nc6 Rd2 Qe6 Ng6 Bd6 Nf5 Bc5 Be7 Qdc4 Qa1 Bd4 Ndf8 Bb2 Nh8 Qcd4 Qa6 Be3+ Nf4 Ne2 Kh3 Nc3 Rc8 Bc4 Rf7 Bd5 Ne2 Ra1 Rh7 Ra3 Rg7 Rb3 g1N+ Ke4 Kg2 Bg5 Rd3 Bgc1 Nf3 Qc4 Kg1 Qcd4 Neg3+ Kf4 Rd2 Be4 Rf7 Kg4 Ne2 Kh5 Qd6 Qed5 Qf6 Qe6 Bd6 Bd5 Rb7 Qh4 Be7 Be4 Ng5 Bg2 Nf3 Bh1 Qd3 Qf7 Qdd6 Qe8 Qde6 Qd7 Qg8 Qe6 Qgg6#
R1b4r/q2qNbPb/P2N2bp/K1kqp1R1/4Q3/1Q1B2n1/7P/2brR2N w - - 0 1 legal: proof: e4 a5 f4 d6 c3 d5 b4 axb4 exd5 bxc3 f5 Ra3 Qf3 Ra4 Qd1 Ra8 Ke2 e5 Ba3 Nd7 Be7 Nc5 Ke1 Ne6 Bf6 gxf6 fxe6 f5 Qf3 f4 Qg4 Ra3 Qd1 Ra8 d4 Ke7 a4 Kd6 g4 c5 a5 f5 e7 b5 e8R c4 g5 b4 g6 f3 a6 f2+ Ke2 h6 g7 c2 Kd2 c1Q+ Ke2 b3 Nc3 f4 Qc2 b2 Qb3 b1B Nh3 Bg6 Rg1 Nf6 Rg5 Nh5 Rb1 Qa3 Kd2 f3 Bd3 f1B Nf2 Qaa5 Nh1 f2 Re1 Qd7 Kc2 Ng3 Ne4+ Kc7 d6+ Kc6 Rd8 Qd5 Kc3 Be7 Kb4 c3 Rg8 c2 Ka4 Qa7 d7 c1Q d8Q Ba3 Nd6 Qd2 Qa5 Bfh3 Qab4 f1B Re8 Bhf5 Rf8 Qdf7 Ka5 Bc1 Re8 Qfd7 d5+ Kc7 Rg8 Be6 Rd8 Bef7 Re8 Qg2 Qe4 Rb8 Rd8 Rb4 Rg8 Rd4 Re8 Bb7 Rb8 Bc8 Ra8 Be2 Nf5 Bg4 Ne7 B4f5 d6+ Kd8 Bc4 Rd1 Bd3 Bh7 Qb8 B5g6 Qb3 Qdb7 d7 Kc7 d8N Kd6 Qf5 Qd7 Qe4 Bfg8 Nf7+ Kc5 Nd6 B8f7 Qea4 Qgc6 Qe4 Qd5
bq3n2/1QpbQN2/1BP1PrrN/8/1b1rpP1b/1k3B1Q/RBb4q/7K w - - 0 1 legal: proof: e4 b5 d4 e5 h4 g5 a4 gxh4 axb5 d5 Qh5 dxe4 Qd1 e3 b4 f5 Qe2 e4 Qg4 f4 Qd1 Nc6 Ra5 Ne5 dxe5 Qf6 Ra3 e2 Kd2 Qg5 Re3 fxe3+ Kc3 Qd8 g4 Kf7 f4 Ke6 b6 e1R g5 h5 b7 a5 b8B a4 g6 e2 b5 h3 g7 a3 b6 h2 b7 h4 Bg2 a2 Ba3 a1Q+ Bb2 h3 Qd3 Nf6 Kd2 Bb4+ Ke3 Ra6 Kf2 Rf8 c4 Rd1 c5 Nh7 Nd2 Qa2 Nf1 Rf6 Nf3 Nf8 Ne3 e1B+ Kf1 Rd2 Ng4 Bh4 Ba7 Rb6 b8Q Bb7 Qa8 Qb8 Nh6 Ra6 Qc3 Kd5 Bb6 Rd4 Ng5 Bc6 Qa3 Kc4 g8Q+ Bd5 Rg1 h1B Qf7 h2 Bf3 Rg6 Rg3 Bg2+ Kf2 h1B Kg1 Rf6 Qb7 Bh3 Qe7 Bd7 Ngf7 Bg2 Rh3 Bf1 Kh1 Bd3 Rh2 Bc2 Qe3 Bc3 Qd3+ Kb3 Qf1 Bb4 Qh3 Ra5 e6 Rg6 Qa6 Ba8 c6 Rf5 Qb7 Rff6 Rf2 Qa3 Rf1 Qa6 Ra1 Qe2 Ra2 Qh2+
Nq1qr3/PP1Bk3/3pn2r/4nb2/2KR2P1/3N1p1Q/1r2RRnQ/1Qn3n1 w - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 h5 b5 cxb5 g6 Nh3 gxh5 Ng1 h4 d4 c5 b4 c4 b6 Ne7 b5 Ng8 Bd2 Bd6 Bb4 Bc5 dxc5 axb4 Kd2 h5 e4 f5 g4 c3+ Kd3 b3 a4 d6 a5 f3 a6 c2 b7 c1N+ Kc4 f4 b6 h3 a7 b2 e5 h2 c6 h4 e6 h3 e7 f2 c7 f3 Na3 b1Q Qd2 Nf6 Nb5 Ne4 Ra4 Nc6 b8Q Rh6 Ne2 Bf5 c8Q Ng5 Nf4 Ne6 Nd3 Kf7 Rg1 h1N e8R h2 Rg2 Ng3 Nc7 h1R Qbb7 Rb8 Na8+ Kf6 Qh7 Nge2 Qcb7 Ng1 Be2 f1N Rf2 R6h2 Qh3 Rc8 Qf4 Rg2 Qfh2 Ne3+ Kc3 Rb8 Rd4 Ne5 Bd1 Qb5 Ba4 Qb1 Bd7 Kf7 Rf1 Rb2 Rf2 Ng2 Qe4 Qa2 b7 Qa4 Rh8 Ke7 Qe1 Qb5 Qd1 Qbb6 Qc2 Qg8 Qb1 Re8 Rh6 Qd8 Rf6 Bh7 Rff4 Bf5 Rfe4 Qb8 Ree2 Qg5 Rc2 Kf7 Rcd2 Qgd8 Rde2 Ke7 Q2g3 Ra2 Qh5 Ng6 Kc4 Rb2 Qh8 Rh5 Qhe5 Rhh8 Qh3 Rh6 Qeh2 Ne5+
1q3k1B/KP3q2/n1b3br/RQ1PqR1R/2q4N/r5P1/rb2pQ1p/2Q2B2 w - - 0 1 legal: proof: a4 d5 f4 b5 axb5 f5 c4 dxc4 e4 Nd7 g3 Ne5 h3 Ng4 hxg4 g6 Nc3 fxe4 f5 g5 Nd5 Bh6 Nf4 gxf4 Rh5 Bg7 Rh1 Bf8 Ke2 a5 b4 h5 d4 e5 d5 c5 g5 a4 g6 a3 f6 e3 b6 h4 b5 e4 b7 a2 b8R c3 g7 c2 b6 h3 b7 c4 Bb2 c1Q Qc2 c3 Rb1 a1R Rh2 Bd7 Qd3 c2 Qb3 R1a2 Qa4 Bc6 Qa3 Ne7 g8Q Rh6 Qh7 Bg7 f7+ Kf8 Qc5 R8a3 Rh1 h2 Nf3 Bd4 Ba1 Bb2 Qb5 Qc8 Ra8 Qd8 Ra5 Qb8 Bg2 Qg1 Rf1 c1Q Nh4 Qc3 Re1 Qce5 Bf1 f3+ Kd1 e2+ Kc2 e3 Qhd3 f2 Qdc4 Ra4 Kb3 R4a3+ Kb4 Qg2 Kc5 Qge4 Qc1 Qc4+ Kb6 Qe6 Rd1 e1Q Rd4 Qec3 Rg4 Qce5 Rg5 e2 Rh5 Q6f5 Bh3 f1B Rg1 Bg2 Rf1 Qg6 Rff5 Be4 Bf1 Qh7 Rf4 Bg6 Rff5 Nc8+ Ka6 Nd6 Kb6 Ne8 Ka6 Ke7 Kb6 Nc7 f8Q+ Kd7 Qfc5 Ke8 Q5e3 Na6 Qf2 Qc8 Ka7 Qf7 Qce1 Kf8 Qb1 Bc1 Bc3 Bb2 Qc1 Qd6 Bf6 Qe5 Bh8 Qcb8+
1B5k/1B6/R1RK3n/r3P2B/r3p1Q1/Pnp4q/2PrQ1n1/rb1rN1rQ w - - 0 1 legal: proof: e4 a5 d4 g5 f4 e5 b4 axb4 dxe5 f5 Qe2 fxe4 Qg4 Kf7 Qd1 Ke8 h4 Be7 g4 Ra3 f5 Ra5 Nc3 Bf6 Nd5 Ra7 Nf4 gxf4 g5 Ra5 g6 Bg5 hxg5 Ra8 Ke2 Kf8 a3 Kg7 Qd4 d5 Qb6 h5 Rh3 c5 Rf3 c4 Qa6 b5 Qd6 h4 Rd3 b3 Qc7+ Qd7 Qb7 b4 Qa6 h3 Kf2 c3 Be3 d4 Qb7 b2 Be2 b1R Qa6 h2 Bh5 h1R Nf3 b3 Ne1 Rd1 Rb1 Nh6 f6+ Kg8 g7 b2 Qb5 f3 f7+ Kh7 Kg3 f2 Kf4 f1N f8Q Qh3 Qf5+ Kg8 Qg4 Rd2 Qc4+ Kh7 g8B+ Kg7 g6 Ra4 Qd1 Nc6 Bd5 Be6 Qa6 Kg8 g7 Rg1 Qf3 Kh7 Qh1 Ra8 Rd1 b1R Bf2 Nd8 Bb7 Nc6 Rg3 d3 Rg6 Ra1 Ba7 Ra5 Bb8 Ba2 Qc4 Nd4 Rc6 R8a7 Rb1 Ne3 Rbb6 Bb1 Ra6 Ng2+ Kg5 Rd5 Kf6 Ra5 Ke7 Ra4 Kd6 Ra8 Rab6 R8a5 Qb5 Re2 Qc4 d2 Ra6 d1R Qd3 Red2 Qc4 Ng4 g8Q+ Kh6 Qf8+ Kh7 Qf5+ Kh8 Qe2 Nh6 Qfg4 Nb3+
1qN2N2/2r1r3/K5r1/3pQ3/N1q1PQ2/kPRnpn1r/2Rb1PB1/r4rR1 w - - 0 1 illegal: No possible last move
k3qb2/r4QR1/P1b5/1p1P1bBn/QPKN3q/3R2pQ/5NbR/4bb1r w - - 0 1 legal: proof: f4 a5 g4 d5 c4 e5 cxd5 exf4 g5 a4 g6 hxg6 Kf2 g5 Ke1 g4 b4 c5 d4 c4 Bg2 Ra5 Be4 Na6 Bc2 Nc5 dxc5 Ra8 Bb3 axb3 Kd2 Kd7 Kc3 Kc7 h4 Kb8 a4 f5 e4 g5 c6 b2 h5 f3 a5 g3 h6 b6 a6 g4 h7 f2 e5 f1B e6 g2 e7 g3 e8R f4 Ra4 f3 Be3 f2 Bh6 Nf6 Qc2 Bb7 Rh2 Ra7 c7+ Ka8 Bg5 Bc6 Na3 b1B Nb5 Nh5 Re7 Qe8 Nh3 g1Q Nd4 Bg2 Rg7 f1B Ra3 Qh1 Qa4 Bbd3 Nf2 Bf5 Kb2 c3+ Kb3 c2 Kc3 Rg8 h8Q c1B Qh7 Rh8 Qg8 Rh6 Qf7 Bd2+ Kb3 Qb8 c8Q Be1 Qcd7 Qe8 Qde6 Bgh3 Qed7 Qhe4 Qde6 Qh4 Qed7 Bfg2 Kc4 Bf1+ Rd3 Bhg2 Qde6 Bg4 Qa3 Qh3 Bd2 Nf4 Rh1 Rh7 Qh6 Bf5 Qa4 Qg4 Qh2 Rh3 Bc1 Qh4 Be3 Nh5 Bg5 Bge4 Qg2 Rh2 Qh3 Bf3 Rg1 Rh1 Rg2 B3e4 Rh2 Bf3 Qd1 B3g2 Qa4 b5+
nq2bbb1/Kpkn3P/Q1Nr4/2B1P2p/b1Q4R/5BbQ/4RbPq/4B3 w - - 0 1 illegal: No proof kernel
1nN4k/pnP2Pnn/1p2Pb2/1r1b1N2/2QB4/2QBKbb1/4B2q/3RQ1b1 w - - 0 1 legal: proof: b4 e5 g4 h5 d4 hxg4 a4 c5 e4 f5 a5 Nc6 a6 Rb8 Ra3 b6 Rg3 Rb7 axb7 Rh6 Re3 Rh8 bxc5 exd4 e5 Be7 Re2 Bf8 Re4 fxe4 Kd2 Kf7 b8Q d5 c4 g5 h4 Kg7 f4 g3 h5 e3+ Ke2 d3+ Kf3 d2 f5 g4+ Ke2 d4 e6 g2 Qh2 g3 Ba3 Qc7 Nf3 g1B Qe1 d1N Qh4 g2 Nbd2 Bh2 Ne4 Nb8 c6 Nf6 c5 Bb7 Nd6 Be7 Bb2 Bg3 Nc8 Nh7 h6+ Kg8 Qe4 Bf6 Nh4 d3+ Kf3 e2 Bd4 Qe5 c7 d2 c6 Ne3 Qc2 d1B Qc4 Bg5 f6 Nf5 Rg1 Ng7 Nf5 B5h4 Rh1 Qd6 Ke3 Ba8 Qeb4 e1N Be2 Nd3 Qe1 Nc5 Rg1 Nb7 f7+ Kf8 Bd3 Bf3 Be2 Bf6 Rh1 Ng5 h7 Rg8 h8Q Nh7 Nce7 Bd5 c8B Bf3 c7 Qf4+ Kd3 Qh4 Ke3 Qh2 Rf1 Nh5 Qc5 Bfh4 Nd6 Na5 Qeb4 Qh3 Be5 Qh2 Bca6 Bab7 Qf6 Rg5 Nec8 Bbc6 Qff4 Nb7 Bad3 Rf5 Qg4 Bf6 Rd1 Rg5 Qba5 Kg7 Qe1 Kh8 Qcc3 Ng7 Qgc4 Bce4 Bd4 Rb5 Nf5 Bc6 Nh6 Bcd5 Nf5 g1B+
1Q3N2/n5P1/br2nb1r/3B4/ppB1r3/1bR1Pk2/1Nb1NnnP/B3KQ2 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 b6 e5 Qd2 exd4 Qd3 Rh7 Qd1 Rh8 f4 g5 b4 g3 b5 g4 Ra4 Qe7 Rb4 Qg5 fxg5 cxb4 c4 Ke7 g6 Kf6 c5 Kf5 b7 Ke4 g7 d5 c6 f5 b6 a5 c7 d3 Qd2 d4 Ba3 a4 Qc3 f4 Bb2 f3 Qb3 d2+ Kd1 f2 Qc4 g2 Ba1 g3 Nf3 g1R Qa2 g2 Bb2 Nd7 b8Q Ne7 b7 Rh6 Qf7 Nc6 Qh5 Na7 Ne1 Nc5 Bc1 Be7 Bb2 Ne6 Qc5 Bf6 Ba1 Kf4 Qb5 Ke3 Kc2 d1B+ Kc1 d3 Nc3 Kf4 Kd2 Bb3 e3+ Kg4 Nc2 Kf3 Ne2 Bd7 Kd1 d2 c8B Be8 Qd3 Bg6 Bd7 Bh7 Bb5 Be4 Bc4 Bg6 Bd5+ Be4 Qd6 Re8 b8N Re7 Qb6 Rb7 Qc7 Rb6 Nd7 Bc4 Nc1 Bb3 Nf8 Kg4 Ke2 d1N Kd2 Kf3 Na3 Bg5 Qa6 Bf6 Bb5 f1B Qb8 Nf2 Nc4 Bd3 Nb2 Be2 Na2 Rc1 Rg1 Rc4 Rc1 g1N Rc3 Ngh3 Ke1 Nhf4 Nc1 Bd3 Bd7 Rd4 Bc8 Bdc2 Qf1 Bd3 Bd7 Ba6 Ne2 Rc4 Be8 Rd4 Bc4 Bec2 Bc6+ Re4 B6d5 Ng2+
1qk2nQ1/2Nrb3/1Pnp1br1/n4P2/bBp1NN2/R2QpB2/4P1r1/2K2B2 w - - 0 1 legal: proof: g4 f5 a4 b5 axb5 g6 h4 g5 hxg5 fxg4 d4 c6 d5 cxd5 c4 Ba6 b4 Qc8 c5 Qd8 Ra3 Bb7 Rc3 Bc8 Rc4 dxc4 Kd2 h5 f4 a5 g6 e5 c6 a4 f5 g3 b6 d6 b5 g2 b7 h4 g7 a3 c7 Kd7 b6 a2 Qa4+ Nc6 b8Q a1N Bb2 h3 Qb5 h2 Qa4 e4 Kc1 Rh7 Bc3 Ne7 g8N Nb3+ Kd1 Ng6 Bb4 Be7 Nd2 Nf8 Nh3 g1B Nf4 Bd4 Qa3 e3 Ne4 Nba5 Kc1 Bdf6 Qd3 Qe8 Rg1 h1R Rg7 Ba6 c8B+ Kd8 Rf7 R1h2 Bb7+ Kd7 Rg7 Bb5 Rg1 Ba4 Rh1 Bd8 Ne7 Rg2 Ned5 Bde7 Nc7 Ra7 Ba8 Rhg7 Rh7 R7g6 Rg7 Qc8 Rf7 Ne6 Rh7 Qb7 Qg8 Nf8 Rg7 Kc8 Rf7 Bd8 Re7 Qb8 Re5 Nb7 Ra5 Bde7 Ra6 Bd1 Ra4 Nba5 Ra3 Ba4 Nd2 Nd4 Bf3 Ndc6 Ne4 Rb7 Ne8 Rd7 Nc7 R2g4 Ng2 Rg3 Nf4 Rg2
1n3N1r/1B2KRr1/1r2Q3/1qpQp2b/P2Nq3/2QPR1pN/P7/n2k1qb1 w - - 0 1 legal: proof: f4 f5 c4 a5 g4 d5 cxd5 a4 e4 fxe4 b3 h6 bxa4 Nf6 f5 Ng8 g5 g6 Bb2 gxf5 g6 f4 Bf6 Ra6 Bh4 Ra8 Bg5 hxg5 Kf2 Kd7 h4 Kd6 d3 Ke5 h5 Kd4 h6 e5 g7 b5 h7 g4 d6 f3 Kg3 Ke3 d7 b4 Rh2 f2 Rh4 b3 Rh2 b2 Rh1 Ra7 Nh3 Nh6 g8Q Qe8 Kh4 g3 Kg5 Bc5 Kf6 Nf5 d8Q Qb5 Qc2 Nd4 Qc3 Nc2 Nd2 b1R Nf3 Bg4 Bg2 Ke2 Rf1 e3 Qdd5 Bh5 Qge6 Rb4 Rac1 Na1 Rcd1 Bd4 Ke7 Rb7 Rc1 Ba7 Rb1 Rb6 Bh1 Rg4 Rb4 c6 Rf4 Rg5 Rf7 Rg7 Rg1 f1Q Nd4+ Kd1 Be4 Rf8 h8N e2 Ng6 Rh8 Nf8 e1Q Bh1 Qe4 Rg2 Ra6 Re2 Bb6 Nf3 Bf2 Re3 c5 Nd4 Rb6 Qdc4 Qf4 Bb7 Qe4 Qcd5 Bg1
4kq2/q2r4/3pp2P/BB2KRQ1/rNb2r1R/2Bq4/2P1Ppn1/n3RQb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 b4 Na3 b3 Nc4 d6 Ne5 dxe5 axb3 exf4 b4 e6 b5 Ba3 Kf2 Bb4 Ke1 Bf8 Kf2 a5 Kf3 f5 d4 g5 b4 a4 h4 a3 d5 a2 b6 Bd7 b5 Bd6 h6 Ne7 b7 Ra4 b6 Rd4 h7 Ng6 h5 Rf8 h8B Bc5 h6 Nc6 b8R Na5 d6 Nb3 b7 Bb5 Nh3 Bc4 Nf2 Rf7 Bg2 Rd7 Rb1 a1R Bd2 Ra4 Qf1 Na1 Ba5 Bb6 Nd3 g4+ Kf2 f3 Kg3 f2 Rh4 Nf4 Nb4 Bc5 Bc6 Ng2 Re1 Rf4 Bb5 Bb6 Bc3 Bd4 Qg1 f1Q Rc8 Be3 b8Q Ba7 Qbb6 Qf3+ Kh2 Qd3 Qf1 g3+ Kh3 Qe4 Qd4 Qd3 Qg7 Bd4 Qg5 Bg1 Rb8 Qc8 Rb6 Qd8 Rc6 Qe7 Rc5 Qf8 Rd5 Rd4 Re5 f4 Kg4 Re4 Rf5 f3+ Kh5 Rf4 Kg6 Qg8+ Kf6 Qf8+ Ke5 Ne3 Bb6 g2 Rf7 Bh2 Ba5 g1Q Rf5 Ng2 Nd5 Qa7 Nb4 f2 Qg4 Kd8 Qg5+ Re7 d7 Bg1 Qg4 Rg7 Qg5+ Qe7 Qg6 Qe8 Rfh5 Ke7 d8Q+ Kf8 Qd5 Rd7 Qd6+ Qe7 Qg7+ Ke8 Rf5 Qf8 Qg5 cxd6#
1qb1nB1b/2k1Pr2/1N1N2K1/Rp2q1pp/3BBb2/r1P2Nr1/n5P1/2Q3Q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 Rh4 g5 Rh3 Qb6 Rh1 Qg6 hxg6 Ra3 Kd2 Ra6 Ke1 Ra8 a4 f5 e4 Ra6 e5 Bg7 Ra2 Ra8 Rb2 Bf8 Rb3 Ra7 Re3 Ra5 Re4 Ra8 Nc3 fxe4 Nd5 Na6 Nxe7 Nb8 Ke2 Kd8 f4 h5 f5 d5 a5 d3+ Ke3 b3 f6 d4+ Kd2 b2 f7 b1Q c3 Nc6 e6 Kc7 g7 Nb4 a6 Nf6 g8Q Bg7 f8B Rh7 a7 Na2 Qf7 Ne8 Qf2 Bh8 Nf3 Rf7 Nf5 b5 e7 e3+ Ke1 d2+ Ke2 Qc2 Nd6 Qe4 Qg1 Qe5 Kd3 e2 Ba3 e1B Bc5 Bh4 Qc1 Bg3 Rh4 Bf4 Rg4 Qf6 Ke4 d3 Bd4 d1R Be2 d2 Bd3 Rf1 Rh4 d1Q Bb1 Rb8 Rg4 Rb6 Bd3 Ra6 a8N+ Kc6 Nb6 Ra3 Rh4 Qa4 Bb1 Qa8 Rh1 Qg7 Bd3 Qb8 Bc2 Rf6 Bd3 Re6+ Kf5 Kc7 Be4 Rf2 Ne5 Rf3 Rh4 Rg3 Nf3 Bb7 Rh1 Rh6 Rh4 Rh7 Rg4 Qe5+ Kg6 Ba6 Be3 Ng7 Bc6 Ne8 Bc5 Be3 Ra4 Bc8 Be4 Rf7 Ra5 Bd2 Bd4 Bf4
1q2QBB1/3qP2n/3kp2N/1P2r2b/bR4B1/1r1r1nQ1/pP1N2Kp/1b1Q4 w - - 0 1 legal: proof: d4 b5 h4 c5 f4 g5 a4 gxh4 f5 e6 f6 Bd6 axb5 Be7 fxe7 d5 e4 dxe4 d5 Kd7 Ra4 Nh6 Rc4 Ng8 Rd4 cxd4 Kf2 a5 g4 h5 c4 f5 d6 h3 g5 e3+ Kg3 a4 g6 a3 c5 f4+ Kh2 d3 g7 a2 Qc2 d2 Be2 d1B Nf3 h4 Bc4 e2 Qa4 e1R Qa5 Bb7 Rf1 Nc6 Rf2 Ne5 Qd2 Nf6 g8B Be4 Be2 Ba4 Bh7 Qb8 Qc3 Rd8 Nbd2 Bb1 Nd4 f3 Bg8 Nh7 Nf5 Ra6 Rf1 f2 Nh6 Nf3+ Kh1 h2 Kg2 Rc6 Qg7 Ra6 Qg3 Ra8 Bd1 Re5 Re1 Ra6 Re4 Rc6 Rb4 f1B+ Kh1 Bfd3 Kg2 Bg6 Be2 Rcc8 Bd1 Bh5 c6+ Ke8 c7 h1Q+ Kf2 Qe1+ Kg2 Qe4 Be2 Qeb7 Bd1 Rd7 Be2 Rcd8 c8Q Rc7 Bd1 Rc3 Qc6+ Qd7 Qc8 Nh2 Bg4 Rb3 Qc2 Nf3 Qd1 Qc6 Kh3 Kd7 Kg2 Kc8 d7+ Kc7 Qh2 Kd6 Qg3 Rf8 d8Q+ Qd7 Qe8 Rf4 Nf1+ Rd4 Bg5 Rdd3 Nd2 Bf7 Bf6 Bh5 Bg7 h3+ Kf1 h2 Bf8 Qbd8 Kg2 Qb8
K2k4/1pnrb3/2b2r1q/rP1pR2P/P1Qn4/2B2pQB/N1N1b3/2Q1Nq2 w - - 0 1 legal: proof: f4 h5 d4 e5 c4 exf4 g4 c6 d5 cxd5 gxh5 Qf6 Bg2 Qg5 Bf1 Qd8 b4 a5 c5 d6 cxd6 Qg5 Bd2 Qf6 Bc1 Qd8 a4 Nd7 b5 Nb8 Ra2 Qe7 Rb2 Qd8 Rb4 axb4 Kf2 g5 e4 f5 h4 g4 d7+ Ke7 h6 f3 Ke3 f4+ Kd4 b3 Kc5 b2 h5 g3 e5 g2 h7 f2 e6 Bg7 Nf3 g1Q Na3 b1R Bb2 Ra1 Nc2 Ra5 Qc1 Nh6 Bh3 Qf1 Bc3 Qf8 Kb6 Bf6 d8N Na6 Ka7 Bd7 Nfe1 Nf5 Ka8 Qh6 Rg1 f3 Rg5 Nd4 Re5 Rf8 h8Q Bc6 Qg8 Bh4 Qgg5+ Rf6 Qg3 Ke8 e7 Ra2 Nb4 Re2 Ne6 Re4 Na2 Rg4 Nc5 Rg7 Ncd3 Bg5 Ndb4 Rgf7 Bg2 Kd7 e8Q+ Kc7 Qb2 Rd7 Nbc2 Bh4 Qeg6 Kd8 Q6g4 Rf4 Qg6 Be7 Qd3 Rf6 Qb1 Qg1 Qbd1 f1B Qc1 Be2 Qc4 Qf1 Bh3 Nc7+
r2b4/p2rP1q1/2Kq2Nk/6pb/N2B1Bn1/1nn1PP1B/4p1rQ/Q3Q2R w - - 0 1 legal: proof: a4 b5 axb5 d5 d4 h5 Kd2 f5 g4 hxg4 c4 dxc4 b4 e5 Kc2 f4 Ra2 f3 dxe5 Qd6 e3 Qf6 Kc3 Qd6 Re2 fxe2 Kc2 Qd8 Kc3 Kf7 h4 Kg6 f3 c5 h5+ Kh6 b6 g5 b5 g3 e6 g2 b7 Nc6 b8Q Ne5 b6 Be7 b7 Nf6 Qbd6 Rh7 b8B Neg4 Qh2 Qd6 Qe1 Bd8 Bb2 Rd7 Nh3 g1R e7 Rg2 Nf4 Ne4+ Kc2 c3 Kb3 c4+ Ka4 c2 Kb5 c1Q Ng6 Qc7 Nc3 Qd6 Na4 Qa1 Bd4 c3 Bc7 c2 Bb8 Qda3 Kc6 c1N Bc7 Nb3 Bf4 Rf2 Bh3 Rg2 Bc5 Qg7 Bd4 Kh7 h6 Nc3 Bde5 Ba6 Bf6 Bc4 Bd4 Bf7 Ne5 Bh5 Ng6 Kg8 h7+ Kf7 h8Q Qb4 Ne5+ Kf6 Qh7 Qb8 Qhb1 Qb4 Qa1 Kf5 Nf7 Kg6 Nh8+ Kh6 Ng6 Qd6+
1RN1r3/1PQp3R/p2qk3/1nRbnn2/QN6/nr2p3/n1PPKB2/b2Q4 w - - 0 1 legal: proof: b4 f5 g4 g5 a4 c5 bxc5 b5 e4 fxe4 axb5 h6 f4 gxf4 g5 h5 Be2 Qb6 Bf3 Qd8 Bg4 hxg4 h4 Kf7 g6+ Ke6 c6 g3 g7 g2 c7 f3 h5 a6 b6 f2+ Ke2 f1N h6 e3 h7 Bb7 c8R Nc6 Ra3 Rb8 Rc3 Nb4 Rh2 Qc7 Ba3 Nh6 Qe1 Bd5 Qd1 Nf5 Nf3 Na2 Ne1 Qd6 R3c5 Rg8 h8Q g1N+ Kd3 e2 b7 N1e3 Qh4 Nc4 Nc3 Nf3 Nb5 N3d4 Na7 Nb5 Rh1 Ra8 Rb8 Rh8 Bb2 Nca3 Nc8 Rh6 Qa4 Rh3+ Nf3 e1N+ Ke2 Nd3 Ne1 Ne5 Bd4 Rb3 g8Q+ Nf7 Rh3 Bg7 Bf2 Ba1 Qg3 Ne5 Nd3 Kf7 Na7 Kf6 Nb4 Ke6 Rd8 Rc8 Rh7 Ra8 Rf8 Re8 Nc8 Ng6 Qf3 Rd8 Rc7 Ke5 Nb6 e6 Rfh8 Kf6 Qd3 e5 Qc4 e4 Rg8 e3 Qf4 Qf8 Rc5 Ke6 Qc7 Qd6 Rf8 Ne5 Rfh8 Re8 Rf8 Re7 Rb8 Re8 Nc8 Rh8 Rh4 Rf8 Rh7 Re8
3B2r1/Qn1k3r/3b1Q2/1p1N2qn/PRb2RP1/pp1K2Qb/3BnP2/b2B4 w - - 0 1 illegal: No possible last move
B4bR1/Kq2P1nP/n6B/Q1Q1pn2/pr1p1QN1/2q3qR/Prk5/2r3R1 w - - 0 1 legal: proof: d4 b5 c4 c5 g4 h5 b4 hxg4 bxc5 e5 Ba3 exd4 Bb2 Ke7 Bc1 Ke8 e4 b4 e5 f6 e6 Bd6 Nd2 Bf8 Ndf3 Ba6 Ne5 Bb5 cxb5 fxe5 b6 d3 Kd2 Ke7 Ke3 Kf6 f4 Kf5 h4 d5 b7 a5 c6 g5 c7 b3 c8Q d2 h5 d4+ Kd3 a4 Kc4 Be7 Kb5 Ke4 h6 b2 h7 b1Q+ Bb2 g3 f5 g4 f6 g2 f7 g3 f8Q Na6 b8R Qc7 Qce8 Nf6 Qc8 Nh5 Qf2 Ng7 Nh3 g1Q Bg2+ Kd3 Qde1 d1N Qa5 Qc3 Kb6 Ne3 Qcc5 Nef5 Rc8 Rb8+ Ka7 Rb3 Ba8 g2 Bc1 Re8 Qf1+ Kc2 Bh6 Qh2 Rb8 g1R Nf2 Qg3 Ng4 Qb2 Qf4 Rb1 Rb7 Rb8 Rh3 Bd6 Re7 R8b5 Re8 Rg1 Rg8 Bf8 Rd1 Rb8 Rd3 Rc1 e7 R3b6 Re3 Qb3 Rd3 Qd5 Rf3 Rb2 Rf1 R8b4 Rg1 Qb7+
1B5q/2qr4/3QQnp1/1K1RPNQ1/3p1BPq/rb1b1rPB/2k4p/R6r w - - 0 1 legal: proof: d4 e5 f4 d6 g4 a6 b4 Nc6 c4 Na5 b5 axb5 e4 Be7 f5 Bh4+ Kd2 Bg3 hxg3 Nb3+ Ke1 Nc5 Nd2 Ne6 Ndf3 d5 fxe6 dxc4 d5 b4 Nd4 exd4 e5 Ra3 Rh3 Ra4 Rh1 Ra8 Kd2 Ke7 a4 b5 a5 h5 a6 c5 a7 f5 Ra4 c3+ Kd3 f4 Nh3 c2 Qf3 b3 Ng1 b4 Kc4 h4 Qc3 g6 Rh3 b2 Rh1 b1Q Kb5 h3 Nf3 c4 Kc5 h2 Ng1 b3 Qb2 f3 Bg2 f2 Qa3 f1R Nf3 c3 Ng1 b2 Bf3 Nf6 Bf4 c1Q Ra5 c2 Bg2 Rh7 Bh3 Rf3 Qe3 Qa1 Kb5 b1B Qd2 Ba2 Qe3 Bb7 d6+ Kf8 d7 Ke7 Qd2 Be4 Qe3 Qc7 Qd2 Bb3 d8B+ Kf8 e7+ Kf7 Qb4 Ke6 e8Q+ Kd5 Qbf8 Qe7 Bc7 Qc3 Bd6 Qc8 Bb8 Qec7 Qh6 Rd7 Qg5 Qe3 Qd8 c1R Qe7 Qh8 Qb4 Bf5 Qd6+ Ke4 Qe6 Kd3 Qd6 Rff1 Nf3 Be4 Nh4 Kc2 Nf5 Rf3 Rg1 Ra1 Rb1 Ra3 Ra1 Qc1 Kb4 Qh4 Rd5 Qd8 Kb5 Qdh8 Bc7 Rc8 Bb8 Rcc3 a8Q Rf1 Qa5 Rcf3 Qab6 Rh1 Qd8 Qe3 Qc6+ Qc3 Qe6 Qc8 Qdb6 Qc7 Qbd6 Bd3+
K1bB3Q/3n2Q1/p1pRPPqq/q3rR2/B1qr2n1/P3k3/1p3RQ1/1n5N w - - 0 1 legal: proof: c4 c5 b4 Qa5 bxc5 Qd8 c6 Na6 c7 Nb8 f4 e5 g3 exf4 c5 Qf6 c6 dxc6 Bg2 Qd4 Bf1 Qd8 Nf3 f5 Nc3 h5 Ne4 Bd6 Ng1 f3 Nf2 f4 Ng4 hxg4 Qa4 f2+ Kd1 f3 Kc2 Bf4 gxf4 Rh3 Kb2 Qe7 Qd1 Qd8 Kc2 Rh8 Kb3 Kf7 Kc4 Ke6 Kc5 Kf5 d4 Ke4 h4 b5 h5 g5 d5 a6 Kb6 g3 d6 b4 h6 b3 d7 b2 a3 g2 f5 g4 h7 g3 Qd2 Qf8 d8R Qf7 Nh3 g1Q Rh2 g2 Rd6 Qa2 e3 Qb3+ Bb5 Qd5 Ba4 f1Q f6 Nh6 Nf2+ Kf5 Rb1 Ng4 Nh1 Rd8 h8Q Ke4 Qg7 f2 Qc2+ Qfd3 Bd2 f1N Ba5 Nd2 Rf1 Nb1 Rf5 Qc1 Qe2 g1Q Rhf2 Qcd2 Qf1 Q3c4 Qg2+ Kd3 e4 Qh6 e5 Ke3 e6 Qe5 Rdd2 Rd5 Rd1 Qec3 Rdd2 Re5 Rd6 Bb7 c8Q Nd7+ Kc7 Qd2 Qe8 Rd8 Qeh8 Bc8 Bb6+ Nc5 Kb8 Qa5 Ka8 Rd7 Rdd2 Rd4 Bd8 Nd7 Rd1 Qg6 Rdd2 Qh2 Rd1 Qhh6 Rdd2 Rde4 Rd6 Rd4
n3rBq1/qp6/1Qb1P3/bP6/1P3KnB/Q1n1p1pN/6kN/RbQ1n2N w - - 0 1 legal: proof: g4 h5 b4 hxg4 c4 d5 cxd5 a5 a3 Ra6 b5 Rc6 Ra2 Rc4 Ra1 Rb4 axb4 e5 d4 f6 e4 Rh5 d6 Rh7 d5 Rh8 Ra3 Be6 Rd3 Bc8 Rd4 exd4 e5 f5 Bd3 Rh4 Bc2 Rh8 Be4 fxe4 Kd2 Kd7 h4 c5 f4 g5 f5 d3 Ke3 c4 f6 g3 h5 g2 h6 g4 h7 c3 f7 c2 Nh3 g1N Nf2 d2 Qf3 d1B Bb2 c1N Rh2 g3 Qe2 a4 Rh1 a3 Rh5 a2 Rh6 a1Q Qd3 Nf6 Nd2 Bc2 Nf1 Nge2 Nh2 Bb1 Nh1 Be7 f8B Na6 Qa3 Nc3 Kf4 e3 Rh4 Rg8 h8N Ng4 Nf7 Nc7 Ng5 Na8 Nh3 Qe8 Rh6 Bd8 Rf6 Ba5 e6+ Kd8 d7 Kc7 Kf3 Nd3 d6+ Kb6 Rh6 Ne1+ Kf4 Rh8 Rf6 Qf7 Rf5 Qg8 Rc5 Qa2 Rc7 Qa1 d8Q Bd7 Qc8 Bc6 d7 Qa2 d8Q Qa1 Qd1 Qa2 Rf7 Qa1 Rf5 Qa2 Qe8 Kc7 Qc1 Qa1 Bg7 Kd6 Qd8+ Bd7 Qb6+ Bc6 Rf7 Kd5 Bf8 Qa2 Qa6 Kd4 Qb6+ Kd3 Rc7 Ke2 Rd7 Qa1 Rd1 Qa2 Nf3 Kf1 Nh2+ Kg2 Ba1 Na4 Bf6 Nc3 Bh4 Qg7 Bc5 Re8 Bf8 Qg8 Qcb2+ Bc2 Rb1 Qa1 Qc1 Qa2 Ra1 Bb1 N3f2 Qd5 Nh3 Qc5 Qc7 Qb6 Qd8 Qa6 Qb6 Qa7
1r1nQ3/1pQ1NqRn/BpNbP3/2Q5/2Pq2bB/1b3K1k/bN1P1p2/7n w - - 0 1 legal: proof: h4 c5 b4 d5 e4 g5 exd5 gxh4 b5 Nh6 a3 Ng8 b6 axb6 f4 e5 a4 e4 Ra2 Kd7 Rb2 Ke8 Rb4 cxb4 Na3 Ra5 Nb1 Rc5 Qh5 Rc6 Qf3 Re6 Qd1 Re5 fxe5 Bc5 Rh2 Bd6 Rh1 Bf8 Ke2 Ke7 g4 h5 d6+ Ke6 d7 f5 c3 h3 g5 f4 g6 Kf5 g7 Kg4 a5 h2 a6 h4 a7 f3+ Kf2 h3 a8Q e3+ Ke1 e2 Kf2 b3 Na3 b2 Qc2 b1B Nc4 Nf6 g8N Nc6 Ne7 Ba2 Ba3 Nh7 Nb2 Rg8 Ke3 e1Q+ Ne2 f2 Rg1+ Kh4 Rg6 h1B Rg7 h2 Bd6 Qd1 Nd4 Qh5 Ba6 Qf7 c4 Bf3 Qf5 h1N Qb8 Be2 Qc7 Bd1 Ke4 Bdb3 Kf3 Qde8 d8Q Qd7 Qe8 Nd8 Bb4 Qd6 Ndc6 Qd4 Nd5 Bd6 Nde7 Qe6 Qg5+ Kh3 Qe3 Qg6 Bc3 Bf5 e6 Rh8 Qe5 Qf7 Qc5 Qh4 Bf6 Qd4 Bh4 Rf8 Na7 Nc6 Qed7 Rb8 Qe8 Nd8 Nac6 Bg4#
2B2BKn/PpN3Q1/4Rp1N/1q4PQ/2rn4/Qbr2Prp/5n2/q2k1rB1 w - - 0 1 legal: proof: b4 a5 e4 axb4 c3 bxc3 f3 g5 a3 d5 exd5 g4 Be2 g3 Bc4 Ra5 Bf1 Ra8 a4 Bh3 Ra2 Qc8 Rb2 Qd8 Rb4 Bc8 Re4 Be6 Re2 Bd7 Rf2 gxf2+ Ke2 Bc8 g4 Qd7 h4 Nf6 g5 Bh6 g6 Bg5 hxg5 Ng8 Ba3 Qd6 Bc1 Qd8 Kd3 Kd7 Ke4 Kd6 d4 h5 a5 e5 a6 c5 a7 c2 g7 c4 Qd3 c3 Qe2 f6 Bh3 f1R Be3 c1Q Qb2 c2 Ne2 h4 Ng3 Nc6 Bg1 Nh6 g8Q Be6 Qg7 Qb6 Nc3 Rac8 Qa3+ Qc5 Rh2 Nf7 Re2 Qa1 Re1 c1R Nb5+ Kd7 d6 Rc3 d5 Nd4 Nc7 Qb5 Bg4 h3 Re2 Rh4 Nf5 Rc4 Nh6 Rc3 Qg6 Nh8 Qh5 Rc4 Ke3 e4 Kf4 e3 Re1 Kd8 d7 e2 Ke4 Qc5 Kf4 Ke7 d8B+ Kd6 Ke4 Qb4 Kf4 Kc5 d6 Rc3 d7 Kc4 Be7 Kd3 d8Q Kd2 Bf8 Qb5 Qd7 Bb3 Qg7 Kc2 Ne6 R8c6 Nc7 R6c4 Ke4 Qb4 Kd5 Qb5+ Kd6 Kd2 Bf5 Rg4 Ke7 Rg3 Bc8 Kc2 Rb1 e1N Rb2+ Kc1 Re2+ Kd1 Re6 Qe5 Ke8 Nd3 Ke7 Nf2 Ke8 Ng6 Kf7 Qb5 Kg8 Nh8
1rBNb3/B5N1/1n1b2n1/P1K1Q1Nr/4Bn2/Pk1p3p/1b1PrpQ1/1n3R2 w - - 0 1 legal: proof: c4 a5 f4 b5 b4 bxc4 bxa5 g5 f5 g4 f6 exf6 Bb2 f5 Bc1 f4 h4 Qg5 hxg5 Bd6 a3 Bf8 g6 Bh6 Rh3 Na6 Rf3 gxf3 g4 Bg7 g5 Nb8 Bg2 Bb2 Qb3 Bf6 Bb2 Ra7 Nc3 Kf8 Kf2 Nc6 Nh3 Ne5 Rh1 Bg7 Qd1 Nc6 Nb1 Ra6 Ke1 Nb8 Bc1 Ke8 Bf1 Bf8 Ng1 Ra8 Kf2 Ke7 e4 Ke6 g7 f5 g6 h5 e5 Kd5 e6 c5 e7 c3 e8Q h4 Bh3 Kc4 Rh2 d5 Ne2 d4 Qd8 c2 Qe1 d3 Qd4+ Kb3 Qe3 c4 Qg1 c3 Qe7 Rh5 Bg2 h3 Qe5 Nd7 Rh1 Ne7 g8N Nb6 g7 Bd7 Qb8 Be8 Rh2 Ng6 Qe5 Bd6 Bb2 c1B Nh6 c2 Qh1 Bc7 Ng3 Rb8 Bd4 Bb2 Nc3 c1N Nf7 Na2 Nce4 Nc3 g8B Nb1 Neg5 Nd7 Ba7 Nb6 Ke1 f2+ Kd1 f1N Be4 f3 Ke1 f4 Kf2 Nh8 Nf5 Ng3 Qg2 Ng6 Rh1 Ne2 Rf1 Bd6 Ng7 Bc7 Ke1 f2+ Kd1 f3 Nd8+ Nd5 Be6 Nef4 B6f5 Nb6 Bc8 Bd4 Kc1 Bc3 Rd1 f1R Re1 Rf2 Rf1 Kc4 Ndf7 Re2 Nd8 Bb4 Kb2 f2 Ka2 Bc3 Qe7 Kd4 Kb3 Bb2 Kb4 Bf7 Kb5 Be8+ Ka6 Kc4 Qe5 Ra8 Kb7 Kb3 Ka6 Nd7 Kb5 Rb8+ Kc6 Nb6+ Kc5 Bd6+
1b3rR1/6K1/1B1pQ3/1BqbnPnb/4N1nQ/p1P1p2R/Qn4bP/2Bk4 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 gxf4 d4 cxd4 Nc3 f5 Nb1 f3 Ra3 f4 Ra6 Nf6 Ra1 Ng8 g4 a5 Nc3 h6 g5 h5 Nd5 Ra6 Ne3 Rf6 Ng4 Rf5 exf5 hxg4 Kd2 Kf7 Kd3 e5 Ke4 a4 b4 a3 b6 g3 b7 f2 g6+ Kf6 c3 Kg5 b5 d3 b6 d2 g7 f3 Bh3 f1B Qe2 f2 Kd5 Kf4 Nf3 g2 Nd4 g1N Nb5 e4 Qc4 Kf3 Ke5 d1N Qa4 Ke2 Nd6 e3 Ne4 Nf6 g8Q Bg2 Qe6 f1B Qab3 Bf3 Qa2+ Nb2 Bg4 Nh3 Rg1 Bh6 Rg3 Ng5 Rh3 Rf8 Bh5 Bg7 Be8 Qe7 Rb1 B1g2 Ra1 Na6 b8B Nb4 b7 Bh5 Bc7 Kd1 b8Q Bb7 Bb6 Bd5 Qd8 Qc5 Qde7 Bh8 Qh7 Bg6 Qh4 Bh5 Kf4 d6 Bb5 Nc6 Rb1 Ng4 Ra1 Bd4 Rb1 Nf3 Ra1 Nfe5 Kg5 Nd8 Rb1 Nf2 Kh6 Ndf7+ Kg7 Nfg4 Ra1 Ng5 Rb1 Na4 Rb4 Nb2 Rc4 Qb4 Rc8 Qc4 Ba5 Ba7 Bb6 Qc5 Re8 Bb8 Rd8 Rf6 Rg8 Rf8
Q2nbB2/1rp2p2/b4Pk1/K7/QrN2rp1/bRPR2Q1/rRP4q/1N5b w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 exd4 g4 h5 Ra3 hxg4 Ra1 a6 b6 Nc6 Bg2 Nb4 Bc6 Na2 Bb5 Nc3 bxc3 axb5 Kd2 g5 f4 d5 e4 g3 h4 d3 e5 d4 b7 g4 b8R b4 f5 g2 e6 b3 h5 b2 h6 Bd7 h7 Ba3 Rc8 Ne7 Qe1 Nc6 Rh4 Kf8 e7+ Kg7 f6+ Kg6 Rh3 Be8 Rg3 Qd6 Rb8 Nd8 Nf3 g1R Rb3 Rf1 Ra2 Rf8 Rh3 Qh2+ Qf2 Ra4 h8Q Rb4 Qg2 Rg8 Qh4 Rh8 Qhf2 Rh5 Qfg3 Ra5 Ne5+ Kf5 Qe1 Rf4 Nc4 Kg6 Qg3 Rb7 Ke1 d2+ Ke2 d1B+ Kd3 Rb4 Qa8 Bf3 Bd2 Bh1 Bc1 Re4 Bh6 Rf4 Bf8 Ra6 Nbd2 b1R Rab2 Ra1 Nb1 Rab6 Qa4 Rb7 Qa8 Ra2 Qa4 Bb5 e8Q Ba6 Qec6 Bb5 Qca6 Be8 Qa8 Rf3+ Ke4 d3 Kd4 d2 Kc5 d1B Rh5 Rf4 Rd5 Be2 Rd3 Nc6 Nb6 Rbd4+ Kb5 Nd8+ Ka5 Rb4 Nc4 Bef3 Qb5 Bfc6 Qa4 Bb5 Bh6 Ba6 Bg7 Qf2 Bf8 Qh2
1NR2B2/p4kq1/Pq5Q/1bqnp3/3Qb3/q1PPN1N1/2pq3r/QK2b2R w - - 0 1 illegal: No possible last move, all moves rejected
1rq1R1B1/2P2pN1/1bb2pRp/2r1qr2/6bP/2P1b3/QB3K1k/R2B1Q1r w - - 0 1 legal: proof: f4 a5 b4 axb4 g4 h6 g5 Na6 g6 Nc5 f5 Ne4 f6 exf6 c3 c5 Na3 Ng5 Nc2 Nh7 gxh7 Ne7 Ne3 Nd5 c4 Nc3 Nd5 b3 Nb4 cxb4 dxc3 Ra7 Bh3 Ra5 Bf1 Ra8 a4 Ke7 h4 Ke6 e4 Ke5 c5 g5 a5 b5 a6 d5 c6 g4 a7 g3 c7 g2 Qg4 d4 Bd2 d3 Be3 d2+ Kf2 d1Q Qh3 b2 Bb6 Kf4 e5 b1R e6 b3 e7 b4 e8Q b2 Qe7 b3 Nf3 g1B+ Kg2 Bg4 Qa3 Bd6 Bd3 Qe1 Qa2 Qe5 Bc5 Rf1 Ng5 b1R Ba3 Qc8 Bb2 Bb6 Rg1 Rb8 a8B Rg8 h8R Rg6 Nf3 Rg5 Nd4 Rf3 Bh7 Rff1 Ba3 b2 Nf5 Rbc1 Bc6 b1B Bf3 Be4 Re8 Bc6 Ng7 Rb1 Bg8 Rb5 Qc2 Rc5 Qa2 Rf5 Bb2 Rd1 Kf2 Rc1 Qf1 Re1 Rh1 Rc1 Kg1 Kg3 Rh2 Rb1 Rg2+ Kh3 Kf2 Re1 Qe2 Rh1 Rg3+ Kh2 Qf1 Qe4 Rg1 Bf4 Bd1 Qe5 Rg3 Bgf3 Rg5 Bg4 Rg6 Be3+
1b1B4/4PQrk/1p1qb3/1p2N1Q1/2NrPb1p/1rRP2Q1/1K2npn1/B3N3 w - - 0 1 legal: proof: f4 d5 b4 g5 c4 e5 fxe5 a6 cxd5 Nf6 h4 Ng8 b5 axb5 h5 Qd7 Nf3 Qe7 Ng1 Qd8 g4 Nh6 a4 Nc6 Bg2 Ra5 Rh4 gxh4 g5 Ra7 g6 Nb8 g7 Ra5 Be4 Ng8 Bg6 hxg6 Ra3 Ra8 Rh3 Rh6 Rh1 Rh8 e4 f5 d6 Kf7 a5 c5 a6 g5 a7 c4 d3 g4 Kd2 f4 Kc3 f3 h6 Kg6 d7 g3 h7 b6 e6 g2 Qc2 f2 Bh6 Nc6 Qd2 Nf6 Nf3 g1R Na3 Ng4 Kb2 Nd4 Ne1 Bd6 e7 Ne3 Bf4 Bb8 Be5 Rf8 h8N+ Kh7 Ng6 Ng2 Qg5 Ne2 Bc3 Qc7 d8B Be6 Ne5 Qd6 Qg3 Re8 g8Q+ Kh6 Q8g5+ Kh7 Bd4 c3+ Kc2 Rg8 Nac4 Rg6 Kb3 c2 Ba1 c1B Kc2 Bf4 Kb1 Rg7 Kb2 Rf1 Rg1 Bc7 Rh1 Rc8 a8Q Bb8 Qb7 Rc5 Qc6 Rd5 Qe8 Rd4 Qf7 Rg1 N1f3 Rc1 Re1 Rc3 Rc1 Ra3 Ne1 Qd5 Rc2 Qd6 Rc3 Rb3+
1n4QQ/1BB3R1/1pPb1NnP/2b2r2/2R2BK1/1qp1p2p/Rr2n2P/1k1q4 w - - 0 1 legal: proof: c4 a5 g4 f5 e4 c5 exf5 h5 b4 axb4 d4 cxd4 Bg2 h4 Na3 b6 Nb1 Bb7 Nc3 bxc3 Bf1 Bd5 Bf4 Bf7 Bc1 Bh5 gxh5 Ra5 Qe2 Ra6 Qd1 Ra8 Ke2 Kf7 Kf3 Kf6 a4 Ke5 f6 d5 a5 g5 c5 g4+ Kg2 Ke4 f4 e5 a6 g3 Kh3 d3 f5 d4 f7 g2 f6 d2 h6 d3 c6 Qd5 a7 Ne7 Ne2 g1B Nf4 Ng6 Kg4 h3 Nh5 Bd6 f8Q Qb3 f7 Bgc5 Nf6+ Kd4 Ra5 e4 Ra2 Kc4 Qc8 Rf8 Rg1 Kb4 Qe2 d1Q Bf4 e3 Qf3 d2 Ba6 Qa4 Bb7 Kb3 Qe8 Qb4 Ra4 Kc2 Rg3 Qb3 Rc4 Kb1 Qc8 Re8 f8B Re5 Qe6 Rf5 Qg8 Qe2 Be7 d1N Bd8 Nb2 Bc7 Nd3 Qh8 Qec2 Qd5 Nc1 Qdg8 Ne2 Rg2 Qd1 Rg3 Nd7 Rg2 Rf8 a8R Nb8 Rg1 Rd5 Ra2 Rd2 Kf3 Rc2 Rg5 Rb2 Kg4 Nh4 Rg7 Ng6 Ne8 Rf5 Nf6 Qa3 Bg5 Qb4 Bf4 Qbb3
Br5K/N3QP2/4qP1b/kbP2N1Q/nn4Rr/1ppQ4/q1p2p1R/6qR w - - 0 1 illegal: No proof kernel
r3br2/n2Q1N2/K4R2/q2p1b2/1Q1N1Pp1/B2bk1B1/P1npp1PN/1b3Q2 w - - 0 1 illegal: No possible last move
4R3/1bNp2Pb/1Q3K1n/p1rr1pN1/1P3Bq1/7P/1qB1QpBQ/k1bq4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 g5 e5 gxf4 b4 h5 g4 Na6 g5 Nc7 Ra3 Nd5 Rg3 Ndf6 Rg4 hxg4 exf6 Rh3 Ke2 Rh4 Ke1 Rh8 Ke2 Kf7 Kd3 Ke6 c4 Ke5 c5 g3 b6 f3 g6 f2 c6 g2 f7 Bb7 c7 Bh6 Bb2 Bc1 f8Q Nh6 Nh3 g1Q c8B Qg4 g7 a5 Ba3 Rb8 Bg2 e6 Qg8 Qf6 Qh7 Rf8 Kc4 d3+ Be4 d2 Re1 Rd8 Qe2 d1B Nc3 Bb3+ Kc5 Bc4 Nd5 Re8 Nc7 Bcd5 Kb5 Kd4 Ng5 Kc3 Kc5 e5 Bc2 e4 h3 e3 Qg6 Qfd4+ Kd6 Re5 Qf6 Be6+ Ke7 Rc5 Qe5 Bg8 Qh2 Qd2 Kf6 Rd5 Qa6 Bh7 Qe2 Ba8 Ba6 Rc8 b7 Qd1 b8Q Bb7 Qa7 Qd2 Qb6 Qd1 Ne8 Rcc5 Nc7 Qd2 Bad3 Qd1 Be4 Qd2 Qf1 e2 Bg2 Qd1 Bd3 Kb3 Bc2+ Ka2 Bb2 Qd2 Be5 Qd1 Bd6 Ka1 Bf4 Qd2 Rd1 e1Q Qe2 Qc3+ Rd4 Qa3 Re4 Qd1 Re8 Qb2+
3QBr1k/4pP2/2Q1R1pb/6p1/1P2Pnp1/K2R4/bnb1Q1n1/Nb1qR1N1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a3 b5 g5 b4 axb4 Qc7 g6 Qd8 b3 fxg6 Ra6 h6 Ra4 a5 Ra2 a4 Ra1 a3 Bg5 Ra4 bxa4 hxg5 Kd2 Kf7 Kc1 d5 f4 g4 e4 g5 c4 d3 h4 a2 Kb2 d2 a5 g6 a6 Kg7 a7 d4 a8R d3 h5 Bd7 f5 Bc6 c5 Nd7 Ra6 Nb6 Ka3 Na4 Qe2 d1B Nd2 Nf6 Rh3 Nb2 Nb3 d2 Rd3 Bc2 Re1 d1B Na1 Bd5 c6 Bb1 c7 Bdc2 c8Q Kh7 h6 Nh5 f6 Nf4 f7 Rg8 Ra7 Kh8 h7 Bh6 Ra6 Rf8 Re6 Qd6 Nb3 a1N Qc6 Bd1 Nd4 Bda2 Nc2 Nb3 Na1 Nc5 Qf2 Qd8 Be2 Ba4 Bd1 Qd4 Qe2 Ng2 Bb3 Qd6 Bc4 Bac2 Bb5 Nd7 Ba4 Nf6 Bb5 Nh5 Ba4 Kg7 Bb5 Nhf4 Ba4 Rg8 h8Q+ Kf8 Qc4 Qb8 Rf3 Qd6 Rg3 Qd2 Rd3 Qd1 Qhd4 Rh8 Qd8+ Kg7 Be8 Rf8 Qc6 Kh8
8/K3b3/1R1BQN2/rP3QNR/p3rPQp/p2b1N2/P2p1b2/2knbb1n w - - 0 1 illegal: No possible last move
k4K2/1n3nnB/8/bp2Q1qn/P3p1Qq/2RNqQp1/1P2Pp1R/1B2R1r1 w - - 0 2 illegal: No proof kernel
b2b2Q1/Q4Qb1/B3BP1p/3q1p1P/rk2PBp1/r1q4N/2R4p/NK1b2q1 w - - 0 1 illegal: No proof kernel
k3KQ1q/Nprp1rB1/Q2qRb1p/P1P5/1q4r1/N1R1p2b/3NPq2/6Q1 w - - 0 1 illegal: Other
2b1r1r1/2nRP2p/3Q3p/1Q2Pr2/1p1pBk1P/R1B1p2b/NR6/1q1B1b1K w - - 0 1 illegal: No proof kernel
Q7/8/1pQ2PpK/BR1qnrP1/3pR1qP/1r1N1b2/k1p1qQpq/5B1B w - - 0 1 legal: proof: e4 f5 b4 a5 g4 axb4 Nc3 h6 g5 fxe4 Nd5 h5 Ne3 Ra4 Ng4 hxg4 Bg2 Ra6 Bf1 Ra8 c4 e6 d4 b6 c5 Na6 c6 Nc5 Bc4 Nb7 cxb7 c5 Bd3 c4 Bf1 Bc5 dxc5 Qe7 Bg2 Qf6 Bf1 Qd8 Ke2 Ke7 Ke3 d5 Kf4 e3 b8Q d4 a4 e2 h4 e1Q a5 g6 f3 c3 c6 c2 a6 g3 c7 Kd6 a7 Kc5 Bd2 b3 Ra3 b2 Qb7 b1Q Ne2 Kc4 Ra5 Kb3 Qb8 e5+ Ke4 Nh6 f4 Ng4 f5 Qf2 Nf4 Rf8 Qe1 Qd1 Rb5+ Ka2 Ba5 Qh2 Qf2 Ba6 c8Q Bb7+ Qc6 Rf7 Bg2 Qg8 Kd5 e4 Ke6 e3 Re1 e2 Nd3 Ne5 Bf1 Rf6+ Ke7 Qd5 Qh8 Rc8 a8B Rc7+ Qd7 Rc3 Qc6 Rb3 Qg8 Re6+ Kf8 Rf6+ Kg7 Rf7+ Kh6 Rf6 Qc7 Bc6 Bb7 Rf7 Qa8 Rf8 Bg2 Rf7 Bh1 g2 Ba6 Bb7 Qc6 Rf6 Rg1 e1Q Rf1 Qee2 Re1 Qg4 Re4 Qde2 Qce8 Rc6 f6 Rc5 Qc6 Rcc3 Nc5 Rf3 Nd3 Rf5 Qc7 Qd2 Nb4+ Kb2 Re1 Qhf4 Rc5 Qd8 Bf1 Qh2 Rb5 Bf3 Nd3+ Ka2 Qcc6 Qd5 Re4 Qe2
3Q3N/1p1B2pk/4p1rq/1q5q/p1N1N1P1/Pb1Q1K1n/rPp3Rq/Q2B4 w - - 0 3 legal: proof: g4 h5 c4 d5 d3 dxc4 Be3 h4 Na3 Kd7 Kd2 Rh5 Qb1 Nf6 Bh3 Rd5 Nf3 Rd4 Qc2 Na6 Rag1 Nb8 Bf1 Ng8 Qd1 Ke8 Ke1 Rd5 Rg3 Rh5 Ng1 Rh8 f4 hxg3 d4 c3 f5 e6 f6 Rh3 Bd2 Be7 fxe7 Na6 e3 cxd2+ Ke2 Nb4 e4 Nd5 exd5 Kd7 Nc4 Rh6 Na3 Rh8 e8B+ Ke7 h4 Kf6 h5 a5 h6 Kg6 h7 c5 d6 c4 d7 c3 d5 c2 d6 g2 Nb1 Qh4 d8N Nh6 d7 Qh5 Nh3 g1Q Ng5 Qgh2+ Bg2 Ra6 Qe1 d1Q+ Ke3 Qc1+ Kf3 Qd2 Nc6 Qc1 d8Q Bd7 Na3 Qd2 Nb8 Ba4 Qa1 Bb3 Bd7 f5 Rg1 f4 Ne4 Nf7 Nc6 Qc1 Nc4 Ng5+ Kf2 f3 N6e5+ Kh6 Ng6 Rf8 Nh8 Rf6 Qc7 Ra8 Qd6 Rg6 Qd5 Qcf4 Qd3 Qf6 Ke3 f2 Bf3 f1Q Rg2 Nh3 Bd1 Q1f5 Ke2 Qb5 Ke3 Rf8 Ke2 a4 a3 Qfh4 Ke3 Rf1 Bf3 Rb1 Bd1 Q4g5+ Kf3 Qgh4 Qa2 Ra1 Qb1 Ra2 Qa1 Rg5 Nf7+ Kg6 h8Q Qh6 Qe8 Kh7 Qd8 Rg6 Nh8 Q4h5
3B4/1q1n1b2/p1Pq2k1/Kpr1qp1q/3BQ2P/1R4pN/PQ2Rp2/2rR1B2 w - - 0 1 legal: proof: c4 e5 f4 c5 g4 f5 d4 Kf7 b4 cxb4 c5 Ke8 c6 Bc5 dxc5 Na6 g5 Nc7 Na3 Nd5 Nc2 exf4 Ne3 h5 Ng4 Ndf6 gxf6 hxg4 Kd2 Kf7 e4 d5 h4 g5 c7 g3 e5 f3 e6+ Kg6 f7 g2 f8B d4 e7 g4 e8R d3 Qa4 f2 Re5 b3 Kc3 a6 Kb4 b2 Qa3 b1Q+ Bb2 g3 Bg7 d2 Rh2 d1Q Nh3 g1Q Bf6 Q8d6 Bd8 Qh5 Ka5 Be6 c8Q Bf7 Bd4 Nf6 Qc6 Nd7 Re2 Rc8 Qe4 b5 Qc1 Qg2 Rh1 Qb2 Rb1 Re8 Rg1 Re5 Qd2 Qa1 Rb3 Qh1 Qb2 Rd5 Be3 Rd1 Bd4 Rc1 Bg2 Rc6 Rd1 Rc7 Bf1 Qg2 Qe3 Qb7 Qe4 Rc8 Qa3 Qc3+ Qb4 Qe3 Qc3 Qef4 Qb2 Qfe5 Bg5 Re8 Be7 Qeh8 Bd8 Re5 c6 Rec5 Ng5 Qhf6 Nh3 Qfe5
B2K3b/1Pb1NQ1R/1pR3Q1/2rRP2p/1N1p1prP/1b3n2/5Q1p/k2b3r w - - 0 1 legal: proof: c4 e5 a4 e4 d4 Qh4 h3 Qf4 f3 exf3 a5 Qf5 Bf4 Na6 Bh2 Qc5 dxc5 Rb8 b4 g5 b5 g4 b6 g3 Kd2 gxh2 g3 f2 Bg2 Nb4 a6 Nc6 Bf3 Nd8 Bd5 cxb6 Bc6 b5 Bf3 b6 Ba8 Nb7 axb7 a5 Ke3 Ke7 Kf4 Kf6 e4 f1R+ Nf3 b4 c6 b3 c5 a4 g4 a3 c7 b2 c6 a2 Qd2 Rg1 Qf2 Nh6 Ne1 Nf5 Nd3 Nd4 Nb4 Nf3 Nc3 b1B g5+ Ke6 g6 f5 g7 Bc2 Ncd5 Bd1 Ne7 Rg4+ Ke3 Ke5 g8Q h6 Qf7 f4+ Kd3 d6 Kc4 Be6+ Kb5 Beb3 c8Q Rh7 Qd7 Rc8 c7 Bg7 Kc6 Bh8 Qc2 Kd4 Qdf5 Be5 Qf2+ Kc3 Kd7 Rhh8 Q5g6 Rh7 Qh4 Kb2 Rc1 Rhh8 Rc6 Ka1 Qe1 h5 h4 d5 Qf2 Rhg8 Re1 Bh8 Re3 Rg1 Rd3 Rh1 Rd2 Kb1 Rd4 a1B Rd2 Baf6 e5+ Ka1 Rd3 Rb8 c8R d4 Rdc3 Bg5 Rd8 Rc8 R3c5 Bgf6 Rd5 Rg7 Re8 Rc7+ Kd8 Rg8 Rcd6 Rc5 Rc6 Rg7 Qd3 Rg4 Qdg6 Bhg7 Rh8 Bf8 Rh7 Bh8 Nf5 Bd6 Ne7 Bc7+
1n1bqN1q/1N1q2RQ/3qQ3/2Qrb3/k1K2pb1/1r2PP2/B1RR3P/r1n4q w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 Bd2 e3 Bg2 exd2+ Kf1 c6 Bh3 cxd5 Kg2 d4 Kg3 Ba6 Bf1 Bc8 Kg2 Rh5 Na3 Rh6 Nb1 Rh8 b4 g5 c4 f5 c5 d5 c6 a5 f3 g3 b6 a4 b5 f4 c7 Kd7 b7 a3 b6 Kc6 e3 a2 Ne2 Kb5 Qe1 d1Q Nc1+ d3 Be2 d4 Kf1 g4 Rg1 g2+ Kf2 Ka4 Qf1 d2 Na3 d3 Nb5 Qe8 Nb3 Ne7 N3d4 Nf5 Rc1 a1B Nd6 Be7 Rc3 Bd8 Rc2 Ng3 Ne6 Be5 Nf8 Qa1 Qc1 d1R Qb1 d2 Bc4 Ne2 Ba2 Be6 c8Q Nc1 Qc5 Qd4 Nc4 Qdd7 Na5 Rh5 Bd5 Re1 Ba2 d1Q Rd2 Qd6 Qh7 Qdd7 Rc2 Q1d6 Rd2 Rd1 Rc2 Rd3 Rd2 Na6 b8Q Rb3 Qbc8 Nb8 b7 g3+ Ke1 Ra7 Kd1 Bg4 Kc2 Qg7 Qe6 Qgd7 Rf1 g1Q Rff2 g2 Rfe2 Nc6 b8R Qh1 Rb7 g1Q Rc7 Qe1 Nb7 Qh4 Rf2 Qf6 Rg2 Qh8 Rge2 Qc8 Rg7 Nb8 Rf2 Qcd7 Rfe2 Ba1 Rg2 Rd5 Rgf2 Rb2+ Kc3 Rb3+ Kc4 Be5 Rg2 Ra6 Rc2 Rab6 Rgd2 Rb1 Qh5 R6b3 Qh7 Ra1
q1q2r1n/1nPp1n2/2BBR2b/1P1b2k1/4R2n/2qP3r/N3B1bn/Q2Q1R1K w - - 0 1 illegal: No possible last move, all moves rejected
q4R1K/1q2rr2/1r1bQB1p/RNkB3P/Qb2P1bq/2n2n1P/1R1Q3r/3n4 w - - 0 1 illegal: No proof kernel
1rq1b1N1/1RPb1BK1/1n2pQ1B/q1Q1P3/1nN4N/1bqn4/5rPB/1kb1r3 w - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 e4 g5 h4 gxh4 e5 b5 axb5 Qc7 Ra3 Qb6 Re3 Qd8 Re4 fxe4 Ke2 Kf7 f4 Kg6 c4 Kf5 b6 h5 b5 a5 c5 d5 b7 e3 Kf3 e6 c6 e2 c7 e1R b6 a4 Be3 d3 Qe2 d4 Nc3 h3 Nd1 h2 Qa2 d2 Qa1 h4 Nb2 d1B+ Be2 d3 Qa3 h3 Qc5 a3 Na4 d2 Qc4 a2 Qb4 a1Q Qc5 Bb3 Nb2 d1B Nc4 Nd7 b8B Ne7 b7 Nd5 Ba7 Bh6 b8N Rf8 Nc6 Qc3 Kg3 Ke4 Kg4 Nb4 Kh5 Rf7 Kg6 Rb8 f5 Nb6 f6 Bd7 Bh5 Kd3 Nf3 Kc2 Nh4 Kb1 Ne7 Qc8 Ng8 Bba4 Rf1 h1Q Rg1 Rf8 f7 h2 Bc1 Bf4 Kg7 Bdb3 Rf1 Be8 Rf2 Bad7 Rb2+ Ka1 Be3 Qf1 Bg1 h1N Bh2 Nf2 Bg6 Nfd3 Bh5 Bda4 Bg6 Bed7 Bh5 Bc1 Bg6 Rd8 f8Q Be8 Bf7 Bad7 Qfe7 Qf3 Qf6 Qa8 Ra2+ Kb1 Ra6 Na4 Rb6 Qd5 Rb7 Nb6 Qd6 Qa5 Qc6 N6d5 Be3 Nb6 Qc5 Bb5 Kg6 Nf4+ Kh7 Rd2 Kh6 Bbd7 Kg7 Nfd3 Bh6 Rf2
5N1R/n1bKnqnq/br1q1r2/1p2Q1b1/kPQ1PP1b/8/N2r1N2/Q1B3R1 w - - 0 1 illegal: No possible last move, all moves rejected
1R4Rb/1N2Q2P/2n3r1/1KpQ4/bPrr2k1/2PRn1q1/N3b2q/nB1Nq1n1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 f4 b5 a4 g5 axb5 h6 b3 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd4 g6 Qd8 Bg5 hxg5 Ke2 Kd7 d4 Ke6 h4 Kf5 h5 c5 g7 e5 c3 a5 d5 e3 Kd3 g4 Kc4 e4 b6 a4 h6 e2 b4 e1Q h7 e3 b7 g3 d6 e2 d7 a3 Qd3+ Kg4 Qd5 f5 Kb5 a2 Qg2 f3 Qh2 f2 Na3 g2 Nc2 f4 Nd4 f3 Qe5 Nf6 g8Q+ Bg7 Qge8 Nc6 b8R Qc7 d8N Ra6 Rh6 Bd7 Kc4 Nd5 Nb3 Ne3+ Kb5 Rg8 Ne6 Bh8 Qe7 Rg6 Qd5 Qh2 Rd1 a1N Nh3 g1N Rd3 Ra7 Bg2 f1R Nd8 Qeg3 Nc1 e1Q Na2 f2 Be4 Be8 Rh5 Rd7 Nb7 Rd8 Qb3 Rd4 Qd5 Nf3 Rf5 Rg1 Rf8 f1B Rg8 Be2 Qed8 Rf1 Qe7 Ng1 Nf2+ Kf4 Nd1 Kg4 Qb3 Rf4 Qd5 Rc4 Rd2 Bd7 Bb1 Rfd4 Rd3 Bf5 Rd2 Bc2 Rd3 Ba4+
1R1n4/NK4nb/4B1Rb/1PQ1B1p1/5bPk/2q1Q3/1rb1PRrb/bq2nQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 dxc4 Nc3 exf4 Ne4 h4 Ng3 hxg3 b4 Ke7 d4 Kf6 Kd2 Kg5 Kc3 a5 h3 c5 d5 f5 b6 g2 b7 a4 d6 a3 b5 a2 d7 Nf6 Qd2 Nh5 Qd4 Nc6 b8Q Qc7 d8R Kh4 Rd6 g5 Qb7 f3 Rh2 f4 Bb2 f2 Qf6 f3 Qb8 Ng7 Qf7 Nd8 Rdd1 Bf5 Qc8 Bh7 Rd6 Ra7 Rc1 a1B Rg6 Ra2 Rd1 Qc6 Rdd6 Qc7 Rb6 Qc6 Rb8 Qf6+ Kd2 c3+ Ke3 c4 Ke4 c2 Kd5 c1N Qc5 Nd3 Be5 c3 Qfa7 c2 Qe3 c1B Qac5 Nde6 Kc6 Ne1 Kb7 Rb2 Qed4 Bf4 Qe3 Kg3 h4 Nd8+ Kc8 Qb6 h5 Qa5 h6 Qc3 Kc7 Bg8 h7 Bb3 Nh3 g1B Bg2 f1B Nf2 Bc2 Bh1 Bh3 Nd3 Kh4 Rf2 Bgh2 Nb4 Bf1 Nc6 Bg2 Rf1 f2 Na7 Ba8 Bd5 Bc6 Be6 B6e4 Rg1 f1Q Rg2 Nf3 Rf2 Qb1 Kc8 Ne1 Kc7 Nf5 Kc8 Bh6 Kc7 Rf8 h8Q Ng7 Qg8 Bed3 Qf7 Rh8 Rf6 Bh7 Rg6 Bfg3 Qff3 Rf8 Qg2 Rf3 Qg1 Bf4 Qf1 Rg3 Kb6 Rg2 Kc7 Nc6 Kb7 Nd8+
2K1r3/rn1P4/q2Qp1RB/b1N1PQ1n/1n2n2B/b2Pb1r1/1Qb1B3/5bkN w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 cxd5 h5 a4 hxg4 Nc3 f5 Ra3 f4 Nb1 Qd6 Rc3 Qd8 Rg3 fxg3 h4 Kd7 e4 Kd6 Ke2 Ke5 Ke3 b5 d6 g5 f3 c5 d7 b3 a5 e6 a6 b4 a7 g2 h5 g3 h6 g4 h7 b2 Ne2 g1B+ Kd3 c4+ Kc2 c3 Kb3 c2 Kc4 b3 Kb5 g2 Rh3 g3 Na3 b1N Nc3 Kf4 e5 b2 Be2 Bb6 Rh6 g1B Nc4 g2 Na5 Kg3 f4 Kf2 f5 Nc6 f6 Nb4 f7 Nf6 Nb3 Nh5 Nc5 Ba5 Rg6 Ba6+ Ka4 Rg8 h8B Qc8 Bf6 Bd6 Bg5 Re8 Bf6 Bd3 f8Q Qa6 Qf7 Be4 d3 Nd2 Bd8+ Bf3 Qf5 Ne4 Bh6 b1B Qd2 c1N Qb2 Nb3 Be7 Bc2 Nd1+ Ke1 Bd8 Be3 Nf2 g1R Nh1 Rg3 Be7 Bg2 Bh4 Rad8 a8Q Bf1 Qa7 Ra8 Qb6 Ra7 Qb8 Qc8 Kb5 Bf8 Na4 Nbc5 Qd6 Nb7 Nc5 Bh3 Bf3 Kf1 Be2+ Kg1 Qc7 Na6 Kc6 Qa8 Qcb6 Nb4+ Kc7 Bf1 Bf6 Ra6 Bd8 Qa7 Kc8 Be7 Qd6 Qb6 Rf6 Ra7 Rg6 Qa6 Qdd4 Rg4 Na4 Nc6 Qd5 Ba3 Nc5 Rg3 Qd6 Rf8 Qa2 Nb4 Qb2 Rf7 Bf6 Re7 Bh4 Re8+
3qRrbR/knr1r3/3PQ2B/1p2rB1b/1P3b2/2NR2Qn/K1PB4/1b1n1b2 w - - 0 1 illegal: No possible last move, all moves rejected
3k2n1/2R3b1/b1PnRqBQ/nNb1Qr1p/r7/7P/PrQR1B2/1n1r2nK w - - 0 1 legal: proof: e4 a5 d4 f5 f4 c5 b4 axb4 Nc3 cxd4 Nce2 g5 exf5 Ra3 f6 Ra6 f5 Ra8 Nf4 gxf4 Kf2 d5 g4 e5 Kg2 h5 c4 b5 g5 b3 g6 b2 c5 b1R g7 d3 h3 d4 Qc2 e4 Be3 d2 Nf3 d1N Qf2 d3 Ng5 f3+ Kg1 b4 Qh2 f2+ Kg2 d2 Ba6 f1N Qc7 b3 Bf2 e3 Ne4 e2 Rh2 e1B Bd3 b2 Nc3 Ba6 Nb5 Nde3+ Kh1 d1R Qe5+ Be7 Rg2 Bc3 f7+ Kd7 f8Q Nc6 f6 Na5 f7 Nf5 Rh2 Nd6 c6+ Kc8 Bg6 Nd2+ Bg1 Nf3 Rd2 Rh7 Qe8 Bd4 f8Q Bc5 Qe4 Bf6 Qc2 Rh8 Qee4 Be5 Qff4 Qf6 Qh6 Kd8 Qe1 Bc3 Bf2 Ng1 Qe5 Rbc1 Qe6 b1N Qe5 Rf1 Qee3 Rcd1 Qe5 Na3 Rb1 Ba1 Rb3 Nb1 Re3 Rb8 Bh4 Rf4 Bf2 Ra4 Re4 Ne7 Ree2 Rf8 g8R Rb7 Rg7 Ng8 Rc7 Bc3 Na3 Rb2 Nb5 Re8 Qd5 Re5 Re4 Rf5 Re6 Qf8 Qde4 Bg7 Qe5 Qf6
1bQ1b3/2n3Rr/1N2b2n/k1Pqb1pQ/1rP2r2/n1QN2P1/1N6/KR1rB2b w - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 e5 b4 exf4 b5 h4 b6 h3 g3 axb6 Nd2 b5 Nb1 b4 Bg2 hxg2 Kd2 d5 h4 Kd7 a4 Kc6 e4 b5 h5 f5 c3 g5 Kc2 f3 Kb2 f4 e5 d4 e6 d3 e7 f2 e8N f1B h6 d2 a5 b3 a6 f3 a7 f2 h7 b4 Na3 Na6 Qc2 d1R Qg6+ Bd6 Nf3 g1B Ra2 Nh6 Qe6 Bb5 Rh4 f1B Qe3 Bb8 Nc4 Be6 Ne1 Qd5 Ned6 Bg2 Rh1 Nc7 Nc8 Kb7 Nd3 Be8 Qe2 Bd4 N8b6 Be5 Bd2 Bf3 Rg1 Bh1 Qh5 Rf8 h8Q Rf4 Re1 Kc6 Ra1 Kb5 Rb1 Ka6 Ka1 b2+ Ka2 Kb5 Rf1 Ka6 Be1 Kb5 Rc1 b1N Ka1 b3 Ncb2 Na3 Rb1 Ka5 Qg7 Rg4 Rf7 Rf4 c4+ Bc3 Rc1 Na6 Qh8 Bb4 N2a4 b2+ Ka2 b1R Rd7 Rb3 Rb1 Bd2 Nab2 Rb4 Ka1 Be3 Qc3 Bd4 Re7 Bde5 Rd7 Bbd6 Re7 Rc8 a8Q Rc7 Rh7 Ra7 Qc8 Bb8 Rg7 Rb7 Rg6 Rh7 Rg7 Nc7
3B2qb/2rnr1r1/3P1RQ1/pNnN1b2/2rRP3/Pb3N1b/k3b2K/2R1Qq2 w - - 0 1 legal: proof: c4 d5 f4 c5 h4 g5 b4 gxh4 e3 e5 bxc5 exf4 c6 Bh3 c5 Bc8 Bc4 dxc4 Kf1 Ke7 g4 Ke6 Kg2 Kd5 d4 h5 a3 b5 c7 f5 c6 a5 g5 c3 g6 Kc4 d5 c2 g7 Kb3 d6 h3+ Kh2 f3 Bd2 h4 Be1 b4 Qd4 c1R Qe5 f4 Ne2 f2 Qe7 f1B Qg5 f3 Nf4 f2 Qf5 Ra7 Qg6 Rh7 Qg5 Nd7 Qc5 Ngf6 g8R Re7 Rg2 Be2 Rg8 f1Q Nd5 Rc4 Rgg1 Bg7 Rg5 Qg8 Rg4 Bh8 Rd4 Ne4 Nd2+ Kb2 Rc1 b3 Qb5 Nec5 Qb4 Ka2 Nf3 b2 e4 b1B Bf2 Bc2 Qe1 Bcd1 Rg1 Bb3 Rg6 Rg7 Bg1 Re7 Kh1 h2 Rf6 Ba6 c8N Rc7 Na7 Bc8 Rd3 Nb6 Rd4 Bf5 Nb5 Nbd7 Qg3 Qd1 Kg2 h1R Qg6 h3+ Kg3 h2 Bf2 Rc8 c7 Qf1 Be3 Rg7 Bg5 Re8 c8Q Ree7 Qb8 Rg1+ Kf4 h1B Qc7 Bg2 Kg3 Bgh3+ Kh2 Na4 Qc5 Rg4 Qb4 Nac5 Qe1 Rh4 Re6 Rhh7 Bh4 Ref7 Bd8 Re7 Rf6 Nb6 Ne5 Rc7 Nf3 Nbd7 Qeg3 Re7 Qe1 Rhg7
1rB2bk1/2qNP1Bn/2b4r/6bR/1Q1bp1Pr/2K1P2q/R4n2/Q1nB2Qr w - - 0 1 illegal: No proof kernel
N1N5/5N1r/nP1n2Qb/Q2pKn2/2Q1b3/1RqP1k1q/qr1Pq3/RBn4b w - - 0 1 illegal: No proof kernel
RBN3bn/Q2qP1Kp/1b3Rr1/3R1b2/B4bqn/1Qq2n1P/6P1/1B3rkn w - - 0 1 illegal: No possible last move, all moves rejected
BK2bBR1/5Rp1/1nn2bp1/Nq5q/1P1rPQPr/1R2b3/k3rnQ1/B1q5 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Na3 exf4 Nc4 Ba6 Ne5 Bc8 Ng6 hxg6 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 d5 b4 f5 e4+ d3 g4 a5 c3 a4 h5 f3 b6 f2 b7 f4 h6 a3 h7 d4 Qe2 Kb3 c4 d2 c5 d1N c6 f3 c7 d3 Rh4 d2 Rh3 a2 Bb2 Bd7 c8Q Ne7 Kd6 Qa5 Qc1 Qh5 Kc7 Nbc6 b8B Be8 Ba7 Rd8 Bc5 Nc8 Rb1 Nb6 Ba1+ Nb2 Bd6 d1R Qf4 Re1 Qc2+ Ka3 Ba6 f1Q Ne2 Nd1 Bb7 Nf2 Nd4 Re2 Nb3 Qc1 Ba8 Be7 Kb7 Bg5 Bf8 Rd4 Na5 Bf6 Rh1 Bg5 Rf1 Bf6 Bc3 a1B Bb2+ Ka2 Bc3+ Qb2 Qcd2 Qc2 Rb3 Bb2 Kc7 Bc1 Ba1 Qb2 Qg3 Qc2 Qdf4 Be3 Qg2 Qc1 Rd1 Rc4 Rd7 Rd4 Re7 Nd1 Kb7 f2 Rf7 f1Q Kc7 Rg8 h8R Nf2 Rh6 Rh8 Rh7 Qb5 Rh5 Qcc5 Rd5 Rh4 Rd8 Qh5 Rc8 Na7 Kb8 Qc1 Bd6 Bd7 Rg8 Be8 Bf8 Nc6+
qBn2r2/3N1kb1/K1p3R1/RpR1Q1q1/P3b3/2P1PBq1/nr3r2/1b2BQ1n w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 Nd2 f6 Ne4 fxg5 Ng3 hxg3 Bf4 g4 Bg5 Nf6 Bc1 Ng8 Kd2 b5 Kd3 d5 a4 g5 f4 c6 h4 g2 e6 g3 h5 g4 f5 b3 e7 b2 f6 b1B h6 d4 h7 Bg7 e3 Na6 Ne2 g1R Nf4 g2 Rh6 g3 Bd2 Kf7 e8R Ne7 Nd5 Rf8 h8Q Nb4+ Ke4 d3 Kd4 Ra7 Kc5 Na2 Be1 d2 Be2 Bf5 Nb6 Qa8 Bf3 Be4 Nd7 Nc8 Rg6 Rb7 Qe2 d1N Qf1 Na7 c3 Rc7 Kb6 Nf2 Ka6 Nh1 Re5 Rcc8 Rc5 Rce8 Qh2 Re5 Qh5 Rf5 Qg5 Rf4 Qe5 Rf5 Bg4 Rf2 Bf3 Bbd3 Rd1 Bb1 Rd6 Rb2 Re6 Rf2 Re8 Rb2 Qe2 Rf1 Rb8 Rf2 Qf1 g1Q Rc8 g2 Rc7 Kg8 f7+ Kh8 Rb7 Qh2 Rb8 g1Q Re8 Qg5 Re7 Rb8 f8B Kg8 Rf7 Qhh4 Bd6 Rf8 Bb8 Qhg3 Re7 Rbd2 Re8 Rb2 Rc8 Kf7 Rc7 Nc8+ Ra7 Rh8 Ka5 Rf8 Ra6 Na7 Kb6 Q5g4 Ra5 Qg5 Ka6 Nc8+
1b3b2/1n3kPb/2KrrPp1/B2n2PR/8/QnB1q1nB/1rN2np1/Q1NN4 w - - 0 1 illegal: No possible last move, all moves rejected
8/2R1NNqk/rqb3R1/3n1RqN/qbq1QP2/2r1Bp1b/P3QP1p/2K3n1 w - - 0 1 illegal: No possible last move, all moves rejected
R1rkbn1N/bb3q1P/1bQp1N2/1nn1Qr2/NP1PR3/6K1/RpB1q3/3b4 w - - 0 1 legal: proof: f4 b5 g4 h5 b3 hxg4 f5 b4 f6 exf6 Nf3 f5 Ng1 f4 Bb2 c5 a3 c4 axb4 c3 b5 cxb2 Kf2 a5 h4 f5 c4 g5 e4 f3 c5 a4 d3 g3+ Ke1 f4 c6 g2 Kf2 a3 e5 a2 h5 g4 h6 g3+ Ke1 f2+ Ke2 f3+ Ke3 Qc7 Kf4 Kd8 b4 Bb7 b6 Ne7 h7 Ng6+ Kg4 Na6 e6 Bc5 Rh2 d6 Qe1 Rc8 Ne2 g1N Rh4 g2 Nf4 Rf8 Qe5 Qf7 Nc3 Ne2 Na4 Nd4 Kg3 g1B Bg2 f1B c7+ Ke7 Bh1 f2 Be4 Nb5 Rg4 Ke8 e7 Be2 Rh4 Kd7 e8N f1B Rg4 Bh3 Rh4 Be6 Nf6+ Ke7 Rg4 Bd1 Bf5 Bce3 Be4 Nc5 Rh4 Bc6 b7 Be8 b8R Bd4 Ra8 Bge3 Rc1 a1Q Rc3 Qb1 Ra3 Qc2 Ra2 Qe2 Bf5 Nd7 Rg4 Ba7 Be4 Beb6 d4 Nc5 Bc2 Rg8 Rh4 Nf8+ Rg4 Rb8 c8Q Rg5 Qa6 Rf5 Ng6+ Kd8 Nh8 Bd5 Re4 Rc8 Qb7 Ba5 Qa6 Bb7 Qc6 B5b6
k1nb4/1n3Q2/brpq2P1/p5Q1/1NP2qNK/2QnBR1P/n1R5/R2q2nr w - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 Kd7 b4 f5 d4 e5 c4 a5 d5 g3+ Kg2 f3+ Kf1 f4 d6 f2 Kg2 c6 g6 e3 b6 e4 b7 e2 b5 e1N+ Kf1 e3 b6 g2+ Ke2 Ra6 Nd2 Nd3 Kf3 f1Q+ Kg4 f3 Nb3 f2 Qd2 e2 Nf3 g1N Nbd4 e1N Qc3 Nc2 Be3 Ncb4 Nc2 Na2 Nb4 Ne7 Kg5 Bh6+ Kh4 Qd1 Rc1 f1Q Rc2 Qc7 Ne5+ Kd8 d7 Qf4+ Ng4 Qcd6 Qf6 Ra7 Qd4 Na6 b8Q Nac5 b7 Ra6 Qa7 Kc7 Qc3 Rb6 b8R+ Bb7 Rf8 Nc8 Qa6 Kb8 d8Q Rh7 Qg5 Rh8 Qb5 Ka8 Qd5 Ba6 Qf7 Nb7 Qg5 Ne2 Re1 Ng1 Rf1 Qd2 Ra1 Qd1 Qh7 Bg7 Rf5 Bf6 h3 Re8 Qf7 Bd8 Bd2 Re2 Be3 Rh2 Rf6 Rh1 Rf5 Qe4 Rf3 Qef4
2k1nBr1/qpnn2N1/p6b/3N3K/Pb5n/QQP1NR1Q/rP3nbR/6q1 w - - 1 2 legal: proof: f4 c5 g4 h5 e4 f5 d4 cxd4 Be2 g5 exf5 gxf4 g5 Na6 Bf3 Nb8 Bg4 hxg4 Kf2 e5 h4 d5 a3 Kd7 g6 e4 g7 g3+ Kg2 d3 Kh3 f3 Kg4 f2 h5 f1Q h6 e3 f6 d2 f7 g2 h7 e2 Rh6 e1B Kh5 d4 Rc6 d3 Rf6 Qb6 Ne2 g1N Nec3 Nf3 Nd5 Qfg1 Qe2 d1N Qe3 d2 Nbc3 Nh4 Rf3 Nf2 Nd1 Kd8 Qc3 Nd7 N1e3 d1N Bd2 Bb4 f8N Qd4 Qb3 Nc3 Bc1 Nb5 c3 Bd2 Ne6+ Ke8 Qa4 Nc7 Qa5 a6 Qa4 Qa7 Qb3 Rb8 a4 Ra8 Qa3 Ngf6+ Kh6 Rf8 g8Q Rb8 Ng7+ Kd8 h8Q Nfe8 Kh5 Ra8 Ng2 Bh6 Nge3 Rf4 Qe6 Rd4 Qhg8 Rd1 Qh3 Re1 Bd2 Rd1 Rc1 Rb8 Rc2 Ra1 Bc1 Ra2 Re2 Nc5 Qf7 Bf5 Rd2 Nd7 Qe6 Be4 Re2 Nd1 Rh2 Kc8 Qb6 Nf2 Bd2 Be7 Qbb3 Bb4 Be1 Nh1 Bg3 Nf2 Bd6 Ra8 Bf8 Rb8 Rf4 Bg2 Rf3 Kd8 Bc5 Nd6 Nb6 Ke7 Qg3 Rg8 Nbd5+ Kd8 Qh3 Nde8 Bf8 Kc8
3rb2N/3PQQ1R/K1b1pq2/2bN1B2/1R5R/1Pn1P2p/4kNbr/nb1q2q1 w - - 0 1 illegal: No proof kernel
nq2Qq1N/q4b2/Q1q2Kpk/1N1pbPr1/R7/2nrB1BB/P2P4/q1N4n w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 c5 b4 cxb4 g5 a4 Na3 h6 Rb1 hxg5 Rb2 g4 Rb3 axb3 Ke2 Kf7 Kd3 d5 Kd4 b5 Ke5 g3 f4 b2 c4 b1Q h4 g2 c5 b3 c6 g6 f6 b4 h5 b2 h6 b3 f5 Qc2 c7 b1Q h7 b2 Bd3 Qc6 Qg4 Nh6 Qg3 Nd7+ Kf4 e5+ Kg5 e4 Nh3 g1Q Ba6 e3 Bf1 e2 Nc4 e1Q Na3 Nb6 Nb5 Be6 c8Q Bd6 Nf2 Ra3 Bh3 Rd3 Qa6 Ng4 Qe3 Na8 Qe4 Qg8 Qe3 Kf8 f7 Kg7 Rh2 Qa1 Rg2 b1N Ba3 Qd1 Bc5 Qf8 Qe4 Qc1 Be3 Nc3 Qea4 Qa3 Rg3 Qb8 f8B+ Kf7 Be7 Kg7 Bd8 Qac5 Bc7 Bf7 Rf3 Qca7 Rf4 Qh2 Qe4 Qf8 Qe8 Qg3 Ra4 Qh2 Ne4 Nf2 Nc5 Nh1 Nb3 Qe5 Qd7 Qee8 Nc1 Qeb8 Qe8 Bb4 Bg3 Bc5 Bef2 Bd6 Kh4 Kh6 Bg1 Rg8 h8N Rg7 Bb6 Rh7 Kg4 Kg7 Bg1 Rh5 Be3 Rg5+ Kh4 Kh7 Bgf4 Rg1 Be5 Re1 Kg5 Rg1+ Kf6 Rg5 B5f4 Kh6 Bg3 Be5#
1bR2K1b/1qQbr1PB/Rn1Qq3/qpp3qn/q5Pk/1R4Nr/1PQ5/3N4 w - - 0 1 illegal: No proof kernel
1rn3Q1/B3p1Pq/R2bRr1B/2Qn1k1q/2b1nn1p/4P1R1/4bnP1/K2BN3 w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 g5 hxg5 a5 e3 axb4 Kd2 f5 Nc3 f4 Nce2 f3 Rh2 fxe2 Rh5 Nh6 Rh1 Ng8 c4 Kf7 Kc2 Kg6 Kb2 e1N a4 h5 f4 d5 c5 b5 c6 d3 a5 d2 c7 d4 a6 d3 a7 h4 Qh5+ Kf5 Ka2 d1B Bb2 b3+ Kb1 d2 Nh3 b4 Ba6 Rh6 Be2 Nc6 Bf6 b2 Ra3 Qe8 Nf2 Be6 c8Q Bg7 Rh2 Nd3 Ra6 Rb8 a8R Na7 Bd4 Be5 Rh3 Nf6 Rg3 Bd6 Qc4 Nc8 Ba7 Ne4 g6+ Ng5 Ka2 b1N Ka1 Nc3 Qc5+ Nd5 Qg4+ Kf6 f5 b3 Rb6 N3f4 Nd3 Ne4 Ne1 Ke5 Bf3 Be2 f6 d1N f7 Ndf2 f8B Qf7 Qg5+ Qf5 Qg4 Qh5 Ra6 Bf1 Bd1 Be2 Rb6 b2+ Kb1 Rh7 Bh6 Rf7 g7 Rf5 Qg6 Bf7 Qh7 Rf6 Qg8 Kf5 Rc6 Bc7 Re6 Bd6 Ka2 b1Q+ Ka3 Qd3+ Ka2 Be8 Ka1 Bb5 Bb6 Bc4 Ra6 Qb3 Ba7 Qb5 Bg5 Qh7 Bh6 Qe8 Qh8 Qf7 Qg8 Qh5
2Rn1R2/2P2r1Q/pr6/2NK1p1R/1PB1QbQ1/5brn/P1r1q1qN/2n2r1k w - - 0 1 legal: proof: f4 h5 g4 e5 gxh5 exf4 d4 c5 c4 b6 Bd2 Qe7 Bb4 cxd4 c5 Qf6 c6 Qd8 Bc5 bxc5 Kf2 Ke7 Kf3 Kd6 Ke4 g5 h4 f5+ Kd3 Kd5 b4 f3 h6 a6 h5 f2 e3 g4 h7 g3 h6 g2 c7 c4+ Ke2 Ke4 Qd2 d5 Qc3 d3+ Kd2 d4 Nh3 Kf3 e4 g1R e5 Bd6 e6 Nf6 e7 Qg8 e8Q Ng4 Qe7 Rg3 Na3 Bb7 Qe8 Nc6 Qg6 Rb8 Nb1 Nd8 Qc2 Bc6 Qg5 Rb6 Nc3 Bb7 Be2+ Kg2 Ng1 f1R Nf3 Nf2 Rh5 Nh3 Qg4 Kh1 Nh2 Bf3 Rd1 Qg7 Re1 Rf8 h8Q Rf7 h7 Qg6 Na4 c3+ Kd1 d2 Nc5 Qg7 Qce4 Bf4 Kc2 d1R Kb3 c2 Kc4 c1N Kd5 Rd2 Bc4 d3 Qg8 Rc2 h8R d2 Qh7 Qg5 Rf8 d1Q+ Bd3 Qe2 Qh4 Nb7 Bc4 Rg4 Rd1 Nd6 Ke6 Rg2 Rd2 Qg3 Qg4 Nb7+ Rd6 Qgf2 Kd5 Rg3 Rdd8 Qg2 Rc8 Nd8
R2r1k2/pQP4b/qq3N1p/r1nQP1q1/3K1n1b/2qB4/P3R2R/2bqBB2 w - - 0 1 legal: proof: e4 c5 d4 e5 b4 f5 h4 g5 Nc3 gxh4 bxc5 exd4 e5 Qb6 Ne4 fxe4 Rh2 Qc7 Rh1 Qd8 Kd2 b5 f4 d5 g4 e3+ Kd3 b4 c4 h3 c6 h6 g5 h2 c5 e2 c7 e1B f5 b3 f6 b2 g6 b1Q+ Qc2 Na6 g7 Rb8 c6 Qb6 Qa4 Ba3 Qa5 Ne7 g8B Bf5+ Ke2 d3+ Kf3 d2 c8Q d1Q+ Ne2 d4 f7+ Kf8 c7 d3 Be3 d2 Bf2 Nc5 Ke3 Bc1 Ng3 Bh7 Nh5 Ng6 Nf6 Qc2 Qb7 d1Q+ Qd2 Qc8 Kd4 Nf4 Rb1 Qcg4 Rb2 Qg5 Qd3 Qcb3 Re2 Q3b5 Bh4 Qdb3 Qde4 Q5a6 Qed5 Rd8 Rg1 h1Q Rgg2 Qhh3 Rh2 Qd1+ Rd2 Be4 Bh7 Rg8 Bf5 Rg6 Bf2 Bc2 B5d3 Qhf3 Re2 Qh3 Be3 Bh4 Bd2 Bb1 Bb5 Bf5 Bd3 Qf3 Be1 Qh3 Ng8 Re6 Nf6 Bh7 Ne8 Qhg3 Nf6 Ra8 Ne4 Ke7 f8R Qbb3 Rb8 Rb6 Nc3 Rb5 Ne4 Ra5 Nf6 Qbb6 Rh8 Rd8 Rg8 Rd7 Rc8 Rd8 Ra8 Qc2 Be4 Kf8 Bg6 Qgb3 Be4 Qd1+ Bd3 Qc3+
2KQ2Q1/B2b1N1p/2P2n1P/4B3/Rr2n1R1/3Rrqb1/2qP1p2/1Br1brnk w - - 0 1 legal: proof: e4 b5 b4 c5 f4 d5 a4 dxe4 Nc3 g5 Na2 gxf4 axb5 Ba6 b6 Bb7 b5 Bc8 Nb4 cxb4 Ke2 Kd7 c4 Kd6 g4 Ke5 h4 f5 g5 a5 h5 e3 Kf3 b3 g6 a4 g7 e2 b7 e1N+ Kf2 Ke4 c5 e5 b6 b2 h6 b1Q c6 a3 Bg2+ f3 Kg3 f4+ Kh2 a2 Qb3 Nf6 g8R Na6 b8Q Nc5 b7 Qdd3 Ba3 Bd7 Bc1 Be8 Kh3 Qbc2 Rg7 Bd6 Bf1 f2+ Kh4 f3 Kg5 Ra4 Qc8 Rb4 b8B Qdc3 Be2 f1R Ba7 f2 Rh3 Qf3 Bb2 Rf8 Rg3 Rf7 Rg6 Re7 Nh3 Re6 Qd8 Bc7 Rc1 a1R Qa2 Re7 Qg8 Rb1 Rd1 Rc1 Bc4 Bd6 Ba2 Re6 Bb1 Bb8 Kh4 Bd6 Ng5+ Kf4 Rg1 e4 Rg3 e3 Nf7 e2 R6g5 Re3 Be5+ Ke4 Rg7 Bb8 Kg5 Bc7 Ba1 Be5 Rh3 Bg3 Be5 Qh1 Rg6 Kf3 Rg7 Nce4+ Kf5 Kg2 Ke6 Nf3 Rg4 e1B Ke7 Neg5 Kd6 Ng1 Kc7 Nge4 Kc8 Qh2 Rf4 Kh1 Rg4 Bf4 Rhg3 Qh3 Rf3 Re2 Ra3 Qf3 Rd3 Bg3 Ba2 Ra1 Bb1 Re3 Rc1 Qb3 Rc4 Qc2 Ba2 Rc1 Bb1 Rb7 Ra4 Rb8+ Kc7 Rb4 Kc8 Bd7+
R4rk1/KR2b2q/B1Q1pQrP/2n1Pb1b/2Q1Pr2/2qp4/1b2n3/3N1nNR w - - 0 1 illegal: No proof kernel
1rN1qn2/2bRK3/1Qr1Q2R/Q1P1q1n1/1n1p1bb1/BR1P2k1/2bP1qp1/6N1 w - - 0 1 illegal: No proof kernel
1R1N3k/b1Nr1r1N/PQp5/2P5/B2r1rPK/B1p3qB/q2nQq2/1bb4n w - - 0 1 illegal: No possible last move, all moves rejected
N3b1B1/k1N3K1/2bbqnP1/7p/2p1Rq1Q/1qPP3r/3br1R1/2rQ1nRQ w - - 0 1 legal: proof: e4 g5 h4 gxh4 b3 f5 Bb2 fxe4 Bd4 d5 a4 b5 Be3 d4 axb5 dxe3 Ke2 Kd7 f4 a5 g4 e5 d3 c5 b6 Kc6 b7 Kb6 c3 h3 f5 a4 f6 h2 b4 c4 g5 a3 b5 a2 g6 Bd6 f7 Qc7 f8Q Nd7 b8R+ Ka7 Bg2 Nb6 Qh6 Nf6 Qh3 Bd7 Qh4 Be8 Na3 Nbd5 Nf3 h6 Re1 h1B Rb1 a1Q Nd4 Qa2+ Rb2 Rh7 Rg1 Qb3 Ne6 Qf7 Nc7 Qf8 Ke1 e2 Kf2 e1R Kg3 e3 Bh3 e2 Be6 Bf3 Bg8 Ne3 Rb6 Rc8 Na8 Bfc6 Qh1 e4+ Kh4 Re7 Rb8 h5 Kg5 Nf1 Kf5 e3 b6+ Ka6 b7 Ka7 Rc2 Re4 Ra2 Rh4 Rd2 Rh3 Nb5+ Ka6 Nbc7+ Ka7 Kg5 Qf7 Kh6 Qe6 Qb1 Rc1 Kg7 e1Q Rdg2 e2 Qc2 Rd8 Qd1 Qg3 Rc8 e1B Rb8 Bed7 Rc8 Rf8 Re8 Qf4 Re7 Bd2 Re8 Qd5 Re4 Rb8 Ne6 Re8 b8Q+ Ka6 Qd8 Ka7 Nec7 Qdf5 Rd4 Re2 Re4 Be8 Qe7 Qe6 Qd8 Nh7 Qh4 Nf6
bN1q1K2/R1qNBP2/4qr2/P3Q1b1/4QN2/1p2q1p1/QP1r1kn1/R1n1r2n w - - 0 1 illegal: No possible last move, all moves rejected
2N1n2k/Br1Rn3/4bN2/p1PN2q1/PqrQ4/4P3/1Rnq2Rp/Knr1b2Q w - - 0 1 legal: proof: h4 e5 d4 exd4 b4 c5 bxc5 g5 e3 gxh4 Nc3 f5 Be2 f4 Kd2 f3 Nb1 fxe2 f4 Kf7 c4 Kg7 Kc2 e1Q Kb2 b5 a4 h5 g4 a5 c6 d5 g5 h3 f5 h2 c7 d3 g6 d2 Ne2 h4 Nbc3 h3 Qc2 d1Q Nf4 d4 Bd2 d3 Rc1 b4 Na2 b3 Bc3+ Nf6 Qd2 Be6 c8N Ra7 Nb4 Rb7 Qe2 d2 Qh5 Nc6 Nfd5 Ne7 Rb1 Qc2+ Ka1 d1N Rb2 Qcd2 Qf3 Rh4 Bd4 Kh8 Ba7 Ne8 f6 Nc3+ Qd1 Nb1 f7 Na3 c5 Rc4 Nf6 Bg7 Nbd5 Qb4 Qc1 Qed2 Rd1 h1R Qc3 h2 f8Q+ Ng8 Qd6 Ne7 Qc6 Rg1 Qd4 Re1 Ng8 Be5 Ngf6 Bg3 Nf4 Rf1 Qh1 Be1 N4d5 Qd6 Qf3 Qf4 Qh1 Qg5 Ng4+ Kg8 g7 Kh7 g8R Rg1 Rg7+ Kh8 Ngf6 Rf1 Rc2 b2+ Ka2 b1N Rb2 Rf5 Ka1 Rf4 Rg6 Rc1 Rg7 Bf2 Rg1 Be1 Rg2 Rg4 Qc3 Rc4 Qd4 Ng8 Rc7 Ne7 Rd7 Nc2+
n5br/4b3/b1QNqN2/R2r1pKn/PP1p4/2R2P1R/N1bB1r1n/Q3qk2 w - - 0 1 legal: proof: c4 b5 h4 bxc4 e3 g5 d4 a5 b4 a4 Be2 e5 dxe5 gxh4 Bd3 Be7 Bc2 Bf8 Bb3 axb3 Ke2 Ke7 Kf3 Ke6 Kf4 f5 a4 c5 g4 h5 e4 d5 g5 d4 g6 c3 g7 c4 Nd2 h3 Rb1 h2 Ngf3 b2 Re1 h1N Nf1 c2 Re3 h4 Re2 h3 Ne1 c3 Ng2 h2 Ng3 Nh6 g8R Nd7 Rd2 Ba6 Qg1 Qf6 Rg6 Be7 Ne2 Ng3 Ne3 h1B Nc4 Rad8 Rd3 Nb6 Nd6 Ng4 Bd2 Nh2 Nc1 Na8 Na2 c1Q Qe1 c2 Rc3 Bg2 f3 Bgf1 Rh6 Bfc4 Rh3 Qd1 Qf1 Qe1 Rc1 Bd5 Rc5 b1B Ra5 Bdc4 Ne8 Qg6 Nf6 Rd5 Qg1 Qe8 Kg5 Nh5 Qh1 Kf7 e6+ Kg7 Rd1 c1R e5 Rc2 Rc1 Rb2 Rc3 Rc2 Bc1 Rf2 Bd2 Bc2 Qf1 Bd8 e7 Kf7 Rg3 Ke6 Rh3 Qd7 e8N Be7 Qh1 Rb5 Qg1 Bc5 Kg6 Qb1 Ne4 Kd5 e6 B4b3 Re3 Kc4 e7 Qd5 N4f6 Qe4 Re2 Kd3 Kg5 Bg8 Qd1 Qb3 Qa1 Qe5 Re4 Qb1 Re2 Qe1 Re4 Qd6 Re6 Qd7 Rc6 Ke2 Rc8 Bd6 Rc4 Kf1 Rc3 Bc7 Nd6 Bd8 e8Q Qe6 Qd7 Rd5 Qc6 Be7
1nK3q1/B1p1N2R/7P/b1PN1bq1/prR1n1R1/3n3Q/k1P3rq/2QNq2b w - - 0 1 illegal: No possible last move
r1n2B2/1pk4r/2Bbb2P/1P3P1Q/qp2qRK1/Q1rnq2q/1NBN2Q1/5b2 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 exf5 h5 d4 cxd4 g4 hxg4 b5 Nf6 Ra2 Ng8 Rb2 Nc6 Rb3 Nb8 Rb4 axb4 Ke2 e5 f4 d5 h4 Kd7 c4 g5 f6 e4 c5 e3 f7 d3+ Ke1 e2 Kf2 e1Q+ Kg2 g3 Kf3 d4 a5 g2 a6 d2 h5 d3 f5 Nc6 a7 Kc7 Kg4 Be6 Nc3 Nge7 Nf3 Rh7 Rh4 Nc8 Na4 Bd6 Nb2 Qh8 f8Q g1R+ Bg2 Rh1 Qg8 Rh3 Qe2 d1Q Nd2 Qb3 Be4 Qa4 Qg2 Qh1 Qg6 Qe5 h6 Qd5 Qh5 Qh2 Nf3 d2 Bc2 d1B Be3 Be2 Bg1 Bf1 Nd2 Rd3 Bd4 Rh3 Bg7 Rc3 Bf8 Qd3 Rh3 Qe3 Rf3 Qe4+ Rf4 Nd4 c6 Nf3 Qg1 Ne1 Qh1 Nd3 Qg2 Rb8 a8Q Qh1 Kg3 g4 Qa7 Ra8 Qa6 Qb3 Qa2 Qa4 Qa3 Qg1 Kh4 g3 Kh3 Qh1+ Kg4 Kd8 c7+ Kd7 Qgh3 g2 Qh2 g1Q+ Qg2 Nb6 c8B+ Kc7 Bd7 Nc8 Be8 Qge3 Bc6 Qhh3+
nbN1R3/1p1n2RK/1R2n1PN/1P5b/rqQ4q/rQNP1kb1/B3bp2/q7 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 b5 exf4 Ba3 Be7 Bc5 Bf8 Bb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd3 Ke5 a4 h5 g4 c5 e4 h3 a5 h4 d6 c4+ Ke2 c3 Kd3 f3 d7 Kf4 a6 f2 e5 b3 a7 b2 e6 c2 g5 c1B e7 h2 e8N h3 g6 Rh4 Qe1 Ne7 Nf3 Nd5 Nd4 Nb6 Nf3 Bd6 Nc3 b1Q+ Kd4 Qb4+ Bc4 f1B d3 Be2 Rf1 h1N Ra6 h2 Ne5+ Nf2 Qd1 h1Q Ng4 Kf3 Qb3 Bg3 Nd6 f4 Ke5 Qg1 Re1 Ne4 Nh6 Nc5 Kf5 Qh8 Kg5 Bb2 d8Q Bg4 Qg8 N8d7 Rc1 Bh5 Nc8 Qhd4 Rc2 Qa1 Qd5+ Qe4 Qd4 Bc1 Bf7 Be3 Qdc4 Bd4 Rc1 Be5 Be6 Bb8 Re1 Nd5 Rb6 Nc7 Bg8 Ne5 Kf6 Ned7+ Kg7 Qe7+ Bf7 N5e6+ Kh7 Rg4 Rh1 Qh4 Bg8 Kg2 Bf7 f3 Rh3 f2 Bg8 Bd6 Rf3 Bg3 Rf7 Rf4 Rg7 Kf3 Qc6+ Qe4 Qc2 Nd4 Ba2 Nde6 Qc5 Qa4 Ne7 Rb4 Qc4 Rb3 Qb1 Ra3 Qbb3 Qb4 Kg8 Ne8 Kh7 Bbe5 Nc8 N8c7 Nd6 Rb8 a8R Rg8 Re8 Bef4 Ree7 Rga8 Re8 R8a4 Nc8 Na8 Rd6 Be5 Rb6 Bb8
1qq2BQ1/1rNn2q1/1pb4b/R1r2K2/1P1Pq2N/b6Q/Qpkn1P2/Rn3N2 w - - 0 1 illegal: No possible last move
k1bq1b2/4Q3/np1r1p2/P4N2/2qQK2r/1PR2QR1/nq1Pn1b1/1N1Bb2N w - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 a3 b3 exf6 Nc3 f5 Bb2 axb2 Nb1 f4 Kf2 Kd7 Kf3 h5 g4 c5 a4 Kc7 e4 c4 e5 c3 g5 c2 a5 c1B e6 h3 e7 b6 e8N+ Kb7 g6 f6 g7 h2 d6 h4 d7 h3 Ne2 Rh4 Nc7 Ne7 g8Q Na6 Qf7 Nc6 Qe1 Ncb4 Qg3 Na2 Rg1 h1B+ Rg2 h2 Ke4 f3+ Kd5 f2 Qf3 Rb8 Rg4 Bg2 Nb5 h1N Nd6+ Ka8 Qe7 Ng3 Nf5 Rb7 Rc4 Rc7 Rc3 Rc6 Nf4 Ne2 Nh5 Re6 Nhg3 Rc6 Nh1 Re6 Qg7 Bd6 Qg4 Bg3 Qf4 Rd6+ Ke4 Bh3 Bg2 f1Q Q4g4 Be1 Qgf4 Qc7 d8Q Qb8 Qe7 Qc7 Qe3 Qd8 Bf3 Bg2 Qd4 Rh8 Na3 Rh6 Qfe3 b1Q+ Qed3 Qb2 Nb1 Ng1 Q3e3 Qc4 Qf4 Rh4 Qg4 Bf1 Bd1 Ne2 Rg3 Qbc3 Qf4 Ba3 Qg4 Qb2 Qf4 Rh2 Qf2 Bg2+ Qf3 Nac1 Ra2 Bc5 Ra4 Na2 Rb4 Rh8 Rb5 Bb4 Rc5 Rh4+ Rg4 Qb5 Qe8 Rc6 Rc3 Qc4 Qf7 Bf8 Qe7 Rh8 Rg6 Rd6 Rg3 Rh4+
br1QQ3/k1qBQ3/np1p4/b1R1K3/1n2nP2/1P4n1/1BP1rb1R/B1Nr1q2 w - - 0 1 illegal: No possible last move
2R3b1/5p2/KrR5/p1q4q/rP1Rq2N/1Pq2Pbr/1Nnb1nQ1/k1B3NQ w - - 0 1 legal: proof: g4 c5 d4 cxd4 a3 d3 g5 b5 g6 b4 axb4 hxg6 e3 g5 Be2 g4 Bf3 e6 Bd5 exd5 Ra5 d4 Ra6 Rh7 Ra1 Rh8 Kd2 Ke7 c4 Ke6 h4 Ke5 h5 d5 h6 g5 h7 g3 b3 g2 e4 g4 c5 g3 c6 Qe8 c7 Nf6 Ra2 Bh6+ Ke1 d2+ Ke2 d3+ Kf3 Kd4 e5 Ne4 e6 Nc6 e7 Bf5 Na3 Kc3 c8N d4 Nh3 g1B Qf1 d1R Be3 d2 Ke2 d3+ Kf3 g2 Ra1 Kb2 Rc1 Bh2 Qg1 Bg3 Nd6 a5 Rh2 Rb8 Nac4+ Ka2 Rh1 Rb6 Nb2 Bg6 Rc3 Ra1 Nf5 Qc8 Bf4 d1Q+ Ke3 d2 Kd3 Qb1+ Kc4 d1Q e8R Bg5 Qf1 g1Q Bc1 Qbc2 Rh2 Bd2 Qg2 Qc7 Rc8 Nd4+ Kd5 Qe7 R3c6 Qc3 f3 Nc2 Rf6 Qe2 Rfc6 Qh1 Ng1 Nf2 Rh4 Qg5 Rhc4 Qe4+ Kc5 Kb1 Ra8 Ra4 Rac8 Rg8 h8Q Ka1 Qh6 Bh7 Qhh2 Rh8 Qh6 Ra6 Kb5 Bg8 Rd4 Qh3 Qh4 Qhg4 Qhh2 Rh3 Qhh1 Qge7 Nh4 Qh5+ Nf5 Ra8 Kb6 Rb8+ Ka6 Qec5 Nh4 Rb6+
1b5q/1PPpQ3/2n1Q3/r1q3Q1/r1RbB1K1/B2P1rR1/1pR1n1bb/2N1nk2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 Na3 exf4 axb5 Rh5 b6 Rh7 Nb5 Rh8 Nd4 c6 b5 c5 Nc6 Bb7 Nb4 cxb4 Bh3 Ba6 Bf1 Bc8 Kf2 Ke7 h4 Ke6 e4 Ke5 c4 Kd4 h5 f5 d3 a5 e5 g5 b7 f3 Kg3 f4+ Kf2 b3 e6 b2 h6 a4 b6 g3+ Ke1 a3 c5 a2 e7 f2+ Ke2 g2 Kf3 g4+ Ke2 f3+ Kd2 g3 e8Q Nf6 h7 Ne4+ Kc2 Nc6 b8R Ra4 Bf4 Bb7 Qd2 Bd6 Qe7 Nc3 Rh3 Ne2 Rc1 a1N+ Kd1 Nc2 Rc8 Ne1 Rc2 Bb8 Bd6 Rf8 Qc1 Rf5 Qcg5 Qh8 Qe6 Re5 Qge7 Ke3 Rc7 Ned4 Ne2 g1B Bg2 f1Q Nc1 f2 Be4 Bh2 Rc4 Qg1 Rc2 Qd8 h8Q f1R Qhg7 Ne2 Qgg5+ Kf2 Rc8 g2 Rg3 Qh8 Rc7 Nd8 c6 Rea5 Ba3 Ba8 Ra7 Bb7 c7 Bd5 b7 Nc6 Qb4 Qh1 Ra6 g1B Qbe7 Qf3 Rb6 Qe3 Rb4 Qb6 Rbc4 Qc5 Bf5 Bf3 Be4 Bg2 Re3 Be5 Rg3 Bh2 Kd2 Kg1 Kd1 Rf5 Kd2 Kf1 Kd1 Ned4 Kd2 Rf7 Ke3 Bf6 Kf4 Ne2+ Kg4 Bd4 Qee5 Rf5 Q5e6 Rf3
rR2Rqn1/4n3/1pQPnr2/3BQ1Nk/bB2q1p1/P2rB3/1P1b4/2bKR1r1 w - - 0 1 illegal: No proof kernel
krr2Qn1/2p2N1n/2n2pKb/2rQ4/2b4P/1QrN1Pr1/2P1B2R/qB2Nr2 w - - 0 2 legal: proof: e4 d5 b4 dxe4 a4 b5 axb5 g5 f3 g4 Ra3 g3 Rc3 Qd4 Re3 Qd8 Re2 h6 Rf2 gxf2+ Ke2 Nf6 g4 Nc6 g5 Bg4 g6 Ng8 Bb2 Bc8 Bf6 Nb8 Bg5 hxg5 Ke3 Kd7 d4 a5 h4 e5 b6 Kc6 b7 a4 g7 f6 Nc3 a3 Na2 g4 Bc4 f1R Rh3 g3 Qc1 g2 Qd1 Be6 Bd3 Bc4 Nc1 a2 Nge2 a1R Nf4 g1N Rh2 Nh3 Be2 Ng5 Ng2 R1a5 Ne1 Nh7 Ncd3 Rc5 b5+ Kb6 d5 Ka7 d6 Nc6 d7 Rc8 Qd2 Rg1 Qd1 Rg3 Qd2 Qe8 d8N Qd7 Nf7 Rb8 Qd1 Qd4+ Kd2 Qa1 Ke3 Nge7 g8B Bh6+ Ng5 Rc8 Bf7 Rhf8 Be6 Ng8 b6+ Ka6 b8Q Rfe8 b7 Kb6 Kf2 e3+ Kf1 e4 Nf7 Ka6 Qa8+ Kb6 Qa2 Rb8 Qb3+ Ka7 Bd5 Rh3 Kg2 Rec8 Bf1 e2 Kf2 Bg7 Ke3 Rg3 Kf4 e3 Kf5 Bh6 Ng2 e1R Be2 Rf1 Nge1 Ra8 b8Q+ Ka6 Q8b4 Ka7 Qdd2 Rab8 Q4a3+ Ra5 Qf8 Ka8 Bd1 e2 Qg5 Rh3 Kg6 Rc5 Be6 Nb4 Qd5+ Nc6 Ng2 e1R Be2 Rd1 Nge1 Rg3+ Qg5 Qa7 Qb6 Ra1 Bd5 Bb5 Ba2 Bc4 Bb1 Ra3 Qb2 Rc3 Qb3 Rh3 Qh5 Qa1 Qd5 Rg3+
7N/2Rb2n1/rpbp4/QQqPnP2/1N2n2n/2N3nB/1bBr1bP1/BK4k1 w - - 0 1 legal: proof: e4 a5 a4 f5 exf5 c5 b4 axb4 h4 g5 Nh3 gxh4 Ra3 c4 Rb3 cxb3 Ng1 Ra7 Nh3 Ra5 Ng1 Ra8 f4 Kf7 d4 Kf6 Kd2 e5 c4 h5 c5 h3 a5 h2 a6 e4 c6 b2 Kc2 b3+ Kd2 h4 a7 e3+ Kc3 e2 c7 e1B+ Qd2 h3 Bb5 b6 Na3 b1N+ Kb2 Qe7 Bf1 Nc6 Nc4 Nc3 Ne3 Nh6 Bb5 Bg7 Be2 Bf2 Nd1 Ne4 Ka1 b2+ Kb1 Ne5 Ne3 Rd8 Qb4 Qc5 Bd3 Bb7 c8B Bc6 Nc2 Bh8 Ka2 b1B+ Ka1 Ba2 Ne2 Be6 Kb1 Bg7 Rf1 h1N Qb5 h2 Nb4 Nhg3 Nc3 h1N Bc2 Nh5 Bb2 N1g3 Ba1 Bh8 Re1 Ng7 Rc1 d6 d5 Bed7 Ba6 Rac8 a8Q Re8 Qa7 Ra8 Bc8 Re7 Qb7 Ra6 Qa7 Re8 Bb7 Ra8 Bc8 Ra2 Qaa5 Ra6 Bd3 Rd2 Bc2 Kf7 f6 Kg6 f7 Kh5 f8N Kg4 Ng6 Nhf5 Qc4 Nh4 Qf1 N7f5 Qfb5 Bf6 Nh8 Ng7 Nd1 N3h5 Nc3 Kg3 Ng6 Kh2 Nh8 Be8 Bh3 Nhg3 f5 Bed7 Rf1 Bd4 Rf4 Kg1 Rg4 Bf2 Rg6 N7h5 Rg8 Ng7 Rc8 Nf7 Rc7 B6d4 Na4 Bb2 Nc3 Ne5
6R1/2bQ2K1/qp3Ppb/2Nrn2B/1Pk1N3/r1P1b1Qn/bRn5/Nn1Qn3 w - - 0 1 legal: proof: g4 c5 e4 h5 d4 cxd4 b3 hxg4 Bh6 f5 exf5 a5 Bg5 a4 Bc1 a3 Bb2 axb2 Ke2 Kf7 Kd3 d5 h4 e5 a4 g6 f4 e4+ Ke2 d3+ Ke3 b6 Kd4 e3 Ke5 d2 f6 d4 c3 d3 f5 g3 b4 e2 a5 e1B a6 g2 h5 Bh6 a7 Ne7 Nf3 g1B Be2 Be6 Nd4 Nd5 Nc2 Nf4 Ra5 Qc8 Na1 Be3 Rh2 Nh3 Rc5 Qa6 Rc8 Ba2 Rg8 Bg7 h6 Nc6+ Ke4 Ne5 h7 Bh4 Bh5 Bg3 Re2 Rd8 a8Q Rd5 Qb8 Bgh6 Rh2 Nf3 Qf4 Ne1 Qfg4 Bc7 Qg3 Bc4 Rd8 Rf8 h8Q Ba2 Ra8 Rb8 Qd8 Rb7 Qdd6 Ra7 Rg8 Ra8 Na3 b1N Nb5 Rd4+ Ke5 Ra7 Qa4 d1N Rb2 Ndf2 Qd1 Ra8 Na3 Ra7 Nc4 Ra8 Nd2 Ra7 Ne4 d2 Qe2 d1N Qd3 Bd2 Qc2 Ne3 Qc1 N3c2 Qd1 Bd8 Qc6 Bde3 Qd7+ Be7 Qb5 Bef8 Qbd3 Ke8 f7+ Ke7 Qgg4 Qc4 Qg1 Ra3 Q3d2 Qa6 Qg3 Kd7 Kf6 Kc6 Qd3 Bd6 f8N Kd5 Nd7 Bc7 Ndc5 Ng4+ Kf7 Ne5+ Kf6 Bhf4 Kg7 Bg5 Q3d2 Kc4 f6 Rd8 Qd6 Rd7+ Qe7 Rd5 Qd7 Bh6+
3b2QB/P1R1qb2/1nQ2R2/4p2p/nkb1bR1Q/4r2r/K1bP2bP/2N2qN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 g5 fxg5 c5 Be2 d5 Bc4 dxe4 Bb3 c4 Ke2 cxb3 Kf2 Na6 Ke1 Nb8 g4 Kd7 c4 Kd6 a4 Kc5 a5 f5 g6 b5 g7 e5 a6 b2 a7 b3 g5 b4 g6 e3 Na3 b1B Nh3 b2 Qh5 b3 Kd1 e2+ Ke1 f4 Ra2 f3 Nb5 Be7 Ra3 Nf6 g8R Na6 g7 Bg6 Nc3 b1B Rf8 b2 g8Q Be6 Ng1 Kb4 c5 Rb8 c6 Nd7 c7 Nac5 c8Q Bc4 Rf6 Bbc2 Qh4 b1B Qc6 Na4 Ra1 Ndb6 Ba3+ Kb3 Rf4 Bgf7 Na2 Bf6 Bf8 Qe7 Nc1+ Kb4 Ra2 Be4 Ra3 Bbc2 Rc3 h6 Bg7 Rh7 Kf2 Rb7 Ke3 f2 Bh8 f1B Nf3 Bh3 Rf1 Bg2 Ng1 e1Q+ Nge2 Qd1 Ng1 Qe6 R1f3 Bd8 Rf6 Qf1 R3f4 h5 Rd3 Rg7 Rd7 Qe7 Rc7 Qd3+ Kf2 Rg3 Ke1 Bb1 Kd1 Rh3 Nb3 Bc2+ Kc1 Nc3 Kb2 Qf1 Nc1 Nca4+ Ka1 Ka3 Re6 Na8 Qhg4 Rbb3 Ref6 Kb4 Qh4 N8b6 Ka2 Rbe3+
Q3K1Rr/1pNbR2Q/q6n/P1n2P1n/1P1B3k/1b1n4/1nr2bpN/1b4NR w - - 0 1 legal: proof: e4 a5 b4 h5 d4 f5 exf5 c5 g4 hxg4 Be2 cxd4 Bc4 a4 Bb3 axb3 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 f4 g3 a4 e4 c4 g4 h4 d3 c5 b2 a5 e3 c6 d2 h5 e2 h6 e1N h7 g2 c7 g3 Qg4 d1N Ra3 Na6 Qh5 Nc5 Rf3 Ned3 Nh3 g1N Be3 g2 Nd2 b1B Nf1 Ne2 Nh2 N1b2 Ng1 Ng3 Qh3 Bg7 Kd6 Nh5 Rf1 Nh6 Re1 Qe8 Re2 Qg6 Bd4+ Kf7+ f6 Ra6+ Kd5 Rc6 f5 d6 Re3 Bd7 c8N Bf8 Nb6 Be7 Na8 Bd8 Bc3 Bb6 Nc7 Ba7 Kd4 d5 Re7+ Kf8 f7 Kg7 Qh4 Qd6 Qh3 Kf6 f8R+ Kg5 Rg8+ Qg6 Qf3 Kh4 Qf4+ Ng4 Qh6 Qd6 Qf8 Nh6 Qa8 Qg6 Ke3 d4+ Kf3 Ne6 Ke4 Rc4 Kd5 Nec5 Re3 Qa6 Re7 Ndf4+ Ke5 d3 Bd4 Bb6 Kd6 d2 Re6 d1B Ke7 Rc2 Re1 Bc8 Ke8 Nfd3 Re6 Bf3 Re1 Bd5 Re7 Bb3 Rf8 Rg8 h8Q Bce6 Qh7 Rh8 Rg8 Bd7+ Kf8 Nca4 Be5 Bf2 Bd4 Bde6 Ke8 Nac5 Rf7 Bc8 Re7 Bd7+
nQqQ4/RB4R1/1PpP3R/1bnpNK2/1N3Q2/1r4bn/1nP1bb2/2nr3k w - - 0 1 illegal: No proof kernel
2RR2r1/3B2Bb/q3p1r1/1nrbPB2/Q1Q1qPP1/2bR2p1/2n1N1bK/1k4r1 w - - 0 1 illegal: No possible last move, all moves rejected
3K1n1n/1BQ3bP/QB1QN1B1/4qr2/1p1qn1r1/1P1p1Rq1/4P1b1/2R2nkq w - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 e5 d4 exf4 b3 cxd4 Nd2 a5 Nc4 a4 Nb2 a3 Qd2 axb2 Qd3 Ba3 Qd1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 b1N a4 b5 c4 f5+ Kd3 Ke5 h4 g5 a5 d5 a6 f3 h6 g4 h7 b4 h5 f2 h6 f4 a7 f3 c5 g3 c6 g2 c7 Qd6 Nh3 g1Q Qd2 Bb7 c8B Qg3 Bd7 Ne7 Nf4 Rg8 h8Q+ Bg7 h7 Nc3 Qb2 Ne4 Bfh3 f1N Bc8 f2+ Be3 Nd7 Re1 Nf8 Rc1 Neg6 Qd2 Rb8 a8Q Bc6 Qb2 Rb5 Bb7 Qe7 Bg2 Kf5 Qc3 Kg4 Rh3 Qe5 Qa6 Rc5 Ne6 Rb5 Kc2 d3+ Kb2 d2 Kc2 d4 Kd3 d1Q+ Kc4 d3 Bb6 Qd2 Qd4 Qde3 Qd6 Qe3f4 Rh5 Rd5 Rf5 Ra5 Bf3+ Kh3 Bh5 Kh2 Rf7 Qfg4 Rf3 Kg1 Qc7 Qa1 Qd6 Rf5 Qc7 Bd5+ Kb5 Qge5 Qd6 Qgg3 Qc7 Qad4 Qd6 Bf6 Qg7 Nh8 Qgc7 Rg4 Bg6 Bg7 Qcd8 Bc4+ Kc6 Bd5+ Kc7 Nd2 Rf4 Bg2 Rf3 Ne4 Qc8 Kh1 Kd8 Kg1 Rc6 Nh2 Rc5 f1Q Qc7 Qfa1 Rc6 Nf1 Rc3 Qc1 Rc2 Qh6 Rc1 Qh1
2R2Q2/pBr1n2k/P1R1QQ1p/B1n5/1rn5/KP1rbb2/1n2q1RP/2qN1r2 w - - 1 2 legal: proof: e4 b5 d4 f5 c4 bxc4 f4 g5 Nc3 e6 Nce2 e5 dxe5 fxe4 f5 Nf6 Nf4 gxf4 Qc2 Ng8 Qa4 Qg5 Qd1 Qd8 Kd2 Kf7 Kc2 Kg7 a4 d5 g4 c5 a5 d4 e6 e3 e7 h6 e8Q f3 b3 c3 a6 e2 g5 e1N+ Kb1 c4 Ka2 f2 g6 d3 Nf3 c2 Bg5 c1R Bf4 d2 Be2 f1R Ne5 c3 Nd3 c2 Nb2 Nf3 Bd6 Nd7 Bb4 Qe7 Ka3 Rb8 Ra2 Nfe5 Bf3 Nc5 Ba5 Rb4 Bb7 Qe6 Qh5 d1N Qg5 Ne7 f6+ Kg8 g7 Kh7 g8R Qc4 f7 Bg4 Bb6 Qe2 Ba5 Bf3 Qf6 Bg7 Rg1 Bf8 R8g2 Rg8 Qc8 Rg3 Qce6 Bg7 f8Q Rh3 Na4 Nb2 Nc3 Bh8 Nd1 Rg3 Qg5 Bf6 Qf4 Bg5 Q4f6 Be3 Rh1 Rgg4 Rhg1 Rgd4 Rg6 Rd3 R1g2 Rb1 Ra1 c1Q Rg8 Qcd2 R8g6 Rc1 Rb1 Rcc4 Rc1 Rcc3 Rc2 Qc1 Rg8 Ncd7 R8g6 Rc7 Rc6 Nc5 R6g4 Rcd7 Rd4 Rc7 Rd8 Rcd7 Ra8 Rc7 Rc8 Nec4+
2k5/RrB1b2r/NPQn1p2/2Q1p1P1/2Nqn3/Kb2P2q/1qR1N3/1qn1n1R1 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 d4 cxd4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kd2 d5 h4 Kd7 b4 a5 c4 e5 Kc2 f6 Kb2 d3 b6 d4 h5 d2 b5 d3 e3 a4 c5 a3+ Kb3 a2 h6 f3 b7 g3 b6 f2 h7 f1Q Qe1 d1Q+ Kb2 g2 Rh6 d2 Rh3 Nc6 b8Q Nh6 Na3 Nf5 Ne2 g1N Nb5 Nd6 Rh1 Nf3 Rg1 Ra7 Qa8 Rb7 Nc7 Qh3 Ka3 Na5 Na6 Be7 Bb2 Qc2 Qc1 d1N Bd4 Qc7 c6+ Kd8 Bb2 Qb1 Qc5 Nb3 Bc3 Ne1 Bb4 Ra7 Qb7 Be6 Qa8+ Qc8 c7+ Kd7 Qe4 Nc1 Qec2 Qd8 c8R Nc3 Qe4 Bb3 Qec6+ Ke6 Rc7 Ne4 Rc8 Qd7 Rc7 Rb8 h8N Rab7 Nf7 Rh8 Nh6 Rh7 Nf5 Qd3 Rc8 Qc3 Rc7 Rb8 Ra7 Rb7 Rb1 Qd8 Rb2 a1Q+ Ra2 Qb1 Rc2 Ned3 Nh4 Qd7 Nf3 Ne1 Nd2 Qd8 Q6d5+ Kd7 Nc4 Qc7 Qcc6+ Kc8 Bc5 Nf5 Bd6 Qd4 Qcc5 Qc6 Bc7 Nfd6 Qa5 Qcc5+ Qb4 Qc3 Qc6 Q5d4 Qbc5 Qcb2+
3qb3/3P1pn1/1NRB2n1/p3q3/Q4PQQ/P2rrbRn/1Kn1r1N1/3kr1N1 w - - 0 2 legal: proof: e4 d5 c4 dxe4 f4 g5 c5 g4 c6 bxc6 Be2 c5 Bf1 c4 h4 Qd4 Be2 Qe5 Bf3 gxf3 g4 Qc5 g5 Bh6 g6 Bg5 hxg5 Qd4 Ne2 Qd6 Ng1 Qd8 d4 Kd7 Kd2 Ke6 Kc2 Kd5 b4 h5 g7 a5 g6 e5 a3 c5 b5 c3 b6 Kc4 b7 e3 d5 e4 d6 f2 Qf3 f1Q Qf2 e2 Qf3 e1R Rh4 e3 Ne2 Bd7 Rg4 h4 Ng1 e2 Qf2 h3 Rg5 h2 Bd2 h1B Qf3 Nc6 b8N Rh3 Rh5 Be8 Rg5 Ne5 Nc6 Nh6 g8Q Nf5 g7 Ng6 Qg4 Re3 Qf8 Bf3 g8Q Ng7 Nd4 Rd1 Nf5 Qe1 Bc1 Rdd3 Qe7 Ra6 d7 Rae6 Nh4 Kd4 Bb2 c4 Nd2 R6e4 Bc1 Re5 Kb1 c2+ Ka2 c3 Bb2 c1R Nc4 Ke4 Qee6 c2 Nb6 Qc3 Ng2 Re1 Qb3 c1N+ Kb1 Re6 Qh8 Qe5 Bd4 Re7 Bc5 Re6 Be7 Kd4 Qd5+ Kc3 Bd6 Kd2 Qb5 Kd1 Qhh4 Re4 Qf2 Qc5 Nh3 Rh1 Kb2 e1N Qfh4 R6e5 Qe6 Qc3+ Kb1 Ne2 Rg3 Ng1 Qeg4 Re2 Qb4 R5e3 Qa4+ Rc2 Ra2 Qc5 Rb2 Qe5 Rb3 Rcd2 Rc3+ Nc2 Rc6 Rde2 Ng5 Be4 Nf3 Nh3 Ka2 Rf1 Ng1 Bf3 Kb1 Rfe1 Ka2 Rd4 Kb2 Rdd3+
1BBrnr1N/1pQR1P2/7K/3qp3/2q3b1/1Pk1q1Q1/qn2nN1P/Q1Bn2b1 w - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 d5 cxd5 h5 b3 hxg4 Nc3 a5 Rb1 a4 Rb2 a3 Be2 axb2 a4 Rh7 Bf1 Rh8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 b1Q a5 e5+ Kg6 c5 a6 c4 f5 g3 f6 e3+ d3 e2 a7 e1N f7 g2 d6 Qa2 d7 Nc6 Qd2 Nb4 Qd1 Nd5 Be2 Ne3 Nd5 c3 Ne7 c2 Nh3 g1N Bg4 Ne2 Nf2 Kc3 d4 Nf6 d5 Nd3 d6 Nb2 Qg1 Ne8 Qg3 Rg8 Kh7 g5 Rd1 Qda5 d8B Qd5 Bh3 Bg4 Bc7 Rd8 Ng6 Be7 a8Q Rf8 d7 Bc5 Bb8 Ba7 Rd2 Bd4 Nd3 Ned1 Nh8 Bg1 Qa7 Be6 Kh6 g4 Qe1 g3 Nf2 g2 Bg4 Rc8 d8Q Bf5 Qd6 Rd8 Bh3 Bg4 Qa8 Bh5 Bc8 Bg4 Qc7+ Nc4 Ba3 c1Q Qa6 Qcc2 Bc1 Qce4 Qg6 Qed4 Qb1 Q4c5 Qa1+ Ncb2 Nh1 Qdc4 Qf2 Q5b5 Rd7 Qd5 Qf4 Bc5 Qg5 g1Q Nf2 Qg3 Qf4 Qgd3 Qg3 Ba7 Nh1 Bg1 Nf2 Qe3+
4BBRr/pnPPQ3/rn1N1rqp/8/1K3Q1B/r4n2/P1q5/k1b1RbnQ w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 h5 e3 h6 gxh6 Nc3 h5 Ne4 fxe4 Bd3 h4 Ba6 Nh6 Bf1 Ng8 g4 Kd7 f4 Ke6 c4 b5 d4 h3 c6 b4 g5 e2 Kd2 e1N c5 Kd5 g6 e5 f5 e3+ Ke2 Kc4 c7 Kc3 g7 e4 f6 h6 f7 b3 d5 h2 c6 b2 d6 b1Q d7 Ne7 g8Q Na6 Nh3 Nf3 Qg2 Qe8 Qg8 Ng1+ Ke1 e2 Nf4 Nc5 Qg5 Nd5 Qe7 Nb6 Nh5 Qc2 Nf6 Ba6 c8Q Nb7 Bg5 Kb2 c7 Bg7 f8B Qg6 Bh4 Bc4 Kf2 e1N+ Ke3 Nef3 Ne8 Bc3 Bh3 Bf1 Nd6 Bb4 Qce8 Ba3 Be6 Rc8 Bf7 Ra8 Kf4 e3 Q8d8 e2 Ke3 Rc8 Be8 Rb8 Qe4 Ra8 Qg5 e1R+ Qe2 Rd1 Qgf4 Rd5 Rd1 Ra5 Re1 Ra6 Qe7 Rb8 Qd1 Rd8 Re2 Rc8 Rg2 Rd8 Qd5 Ka1 Rg3 Nd2 Kd4 Bc1 Bg7 Rf8 Rg5 Rf6 Bf8 Nh3 Rhg1 h1R Qg2 Rh2 Qh1 Rf2 Re5 Rf3 Re1 Rfa3 Rg2 Ng1 Rg5 Qh7 Rg8 Qhg6 Qhe4 Nbc4 Qh1 Ndf3+ Kd5 Nba5 Kc5 Nb7+ Kb5 Nb6+ Kb4 Rd3 Rg7 Be2 Bf7 Qf5 Rg6 Re3 Bg7 Rh8 Bf8 Bf1 Be8 Rea3 Rg8 Qg6
1N1B3N/nbnpPq2/3N1b2/3n3Q/1RP2QKr/1q2bp1R/1Rrp1P2/3rk3 w - - 0 1 illegal: No possible last move
2BBq1nK/1P1Q1rB1/7Q/5r2/Nppn2p1/nP1Q1bN1/kPb2b1q/4R1q1 w - - 0 1 illegal: Other
1Nr3Q1/nB1p1R2/3qp2P/2Qb1p2/Rn1Pq3/1P2Nr2/rb2k3/N1b1nRK1 w - - 0 1 illegal: No proof kernel
3q1b2/3N3n/1pp1KnP1/1rQBPRp1/b3bq1R/1P1Q1n2/1B5Q/1r2k1rB w - - 0 1 illegal: No proof kernel
4n3/pp6/bPr1B1pK/3P1NRq/2Qnb2N/4nr2/P1qQQ2R/1kr2N1q w - - 1 2 legal: proof: f4 f5 c4 e5 g3 exf4 Qb3 d5 Kd1 dxc4 Kc2 f3 Kc3 f2 Qd1 Be7 Kc2 Bf8 b3 h6 Bb2 f4 Kc1 f3 Bf6 Bd6 Bg5 Bf4 gxf4 hxg5 d4 Kf7 Kd2 Kg6 Ke3 Kf5 h4 c5 d5 g4 b4 c3 h5 c2 b5 c1Q+ Nd2 g6 b6 g3 h6 c4 h7 c3 Rh2 Qg5 Bh3+ Qg4 Qe1 Qd1 Nf1 g2 Qd2 Nf6 Rb1 Rg8 h8N c2 Nf7 c1R Ra1 Ne8 Nd6+ Kf6 f5 Ke5 f6 Bf5 f7 Be4 f8Q Qc2 Rb1 Nc6 Nf5 Rc8 Qc5 Nd4 Qc4 Rf8 Rb2 Qg3 Bg4 Rc6 Rh5 Qh4 Rg5 Qh1 Bh3 Kf6 Kf4 Rf7 Kg4 Ke5 Rh5 Rff6 Kg5 Rf8 Kh6 Rff6 N1e3 f1N Rg5 f2 Nf3+ Kf4 N3h4 g1Q Ne7 Qg3 Be6 Qg4 N7f5 Rf8 Ng3 Rf7 Nef5+ Ne3 Nf1 Ke5 Rb3 Nd1 Rh3 Ne3 N1g3 f1B Rh2 Bfg2 Nf1 Bd3 Qa4 Ba6 Qc4 Ke4 Ng7 Rf3 Ngf5 Nd1 e3 Ke5 e4 Ne3 Bc8 Kf4 e5 Ke4 e6 Rg3 e7 Rh3 Qc5 Rf3 Qf2 Kd3 Be6 Rc8 Qb4 Rc6 Qa4 Kc3 Qc4+ Kb2 Qfe2 Kb1 Qd2 Rf2 Qdd3 Be4 Qd2 Ng7 e8Q Rf3 Qc8 Ne8 Qce2 Rd6 Qc5 Rc6 Qcc4 Qh5+
q1bQb1N1/4rNbk/1r3npp/7B/P4bp1/3K1RP1/bnQ1P3/QR1N2r1 w - - 0 1 illegal: No proof kernel
1r3N2/n5bP/b1Rp1N2/2pqRKBQ/p1k1n1Pn/b3R3/P1N2b1r/2b3Q1 w - - 0 1 illegal: No proof kernel
2bk4/N1rppR1R/4qP2/bn1BNQNr/2P1P3/rn1p3r/Q3K3/1r2bR2 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Bg5 f5 Bh4 f4 Bg3 fxg3 Bh3 Qc7 Bf1 Qd8 f4 g5 h4 a5 c4 a4 e4 a3 b4 a2 f5 g2 b6 g3 b5 g4 b7 Ra7 f6 Na6 b8N Rc7 h5 Nh6 b6 Nc5 b7 Nf5 h6 Nd6 h7 Bh6 Qb3 Bd2+ Kd1 Ba5 Nc3 Nb5 Nf3 g1R Ng5 g2 Ke2 g3 Rb1 a1R Qa2 Nb3 Nc6 Na7 b8R Nb5 Rh5 Rh1 Ne5 g1R Bh3 g2 Be6 Rh3 Rf1 Rgh1 Rh6 g1B Bd5 Bf2 Rh4 Rb1 Rh5 Rf8 h8Q Be1 Rh7 Rh5 Qg8 R1h3 Qe6 Rg8 Qf5 Rg7 Ngf7 Rgg3 Ng5 Rb7 Rh6 Qb6 Rh7 Rc7 Ra8 Kd8 Rb8 Na3 Nb5 Qe6 Na7 Nb5 Rf7 Na1 Rh7 Ra3 Rf7 Nd6 Rb3 Nb5 Rg3 Nb3 Rg4 Rh7 Rh4 Rh8 Rh6 Rh5 Rhh7 Rh3 Rhg7 R8h5 Rh7 d3+
1Bk3N1/r2n2q1/R3K1n1/p3nN2/1pb2Qpr/1N1n1P2/P3Pb1Q/2R1n1bQ w - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 g6 f3 Bg2 fxg2 Bd2 hxg6 Be3 g5 Bc1 g4 Kd2 d5 Kd3 Kd7 h4 b5 c4 a5 h5 g5 h6 g3 h7 g4 Nd2 b4 Nb3 Qc7 Nd2 Ra7 Ngf3 g1N Nh4 g2 Rh3 Nf3 Qh1 g1B Nf5 Ne7 Nb3 Ng6 Bf4 Ba6 c6+ Kc8 Rh6 Nd7 Rc1 Bb5 Bh2 Qb7 Bb8 Bc5 Qh2 Qc7 Qf4 Qe5 c7 Qg7 Qh2 Ne7 Ra6 Ng6 Kc2 Nfe5 f3 Bb6 c5 d3+ Kd2 d4 Qh1 Rg8 h8Q Rd8 Q8h4 Rh8 Q4h2 Rh4 Qf4 Kb7 c8N Bf2 Kd1 d2 Kc2 d1N Nce7 Nb2 Ng8 Nbd3 c6+ Kc8 c7 Ne1+ Kb2 d3 Qhh2 d2 Qh1 Kb7 c8Q+ Ka8 Qf8 Kb7 Qfh2 Bbc5 Qf6 Kc8 Qg5 Bg1 Qgf4 d1N+ Kb1 Ng2 Kc2 Bcf2 Kd2+ Nc4+ Kd3 Ne1+ Ke4 Nb2 Kd5 Nbd3 Nc5 Nce5 Ke6 Bd4 Nb3+ Bc5 Rb1 Bcf2 Rc1+ Bc4+
2nN1r1r/Q4N2/1pK1BkNP/1R3p1n/r1n1pbrr/2P1qR2/bP2Q3/5Q2 w - - 0 1 illegal: No proof kernel
2Bnkr2/qQ1N2Q1/r2RbrP1/2Rn3R/P1N3p1/1p2p1N1/n3Pb1b/r6K w - - 0 1 legal: proof: f4 a5 g4 g5 b4 axb4 c4 d5 cxd5 h6 Bb2 Ra7 Bf6 gxf4 g5 Ra4 g6 Ra8 Bg5 hxg5 Kf2 b5 Kg2 e5 d4 f5 a4 c5 h4 b3 d6 g4 d5 f3+ Kh2 b2 h5 e4 h6 b4 h7 f2 Qb3 f4 Qa3 b3 Nf3 c4 Nfd2 c3 Bg2 f1R Nc4 f3 Qb4 c2 Qb6 c1B Nc3 b1N Qb7 f2 Bf3 e3 Ne4 Ra6 Ng3 Be6 Ra2 Be7 Rc2 Nc3 Kg2 Bg5 Rh5 Qe7 Kh2 Bf4 d7+ Kd8 Be4 Bd2 Bf5 Ra1 Rc1 Qc5 Kh1 Be1 Rc2 Ke7 d8N+ Ke8 d6 Ne7 Nf7 Ned5 Nfe5 Na2 Nd7 Rf8 h8Q Nc6 Qg7 f1R+ Kg2 Rh1 Nde5 Ndb4 d7+ Kd8 Nb2 Rf1 Nh1 Bh2 Ng3 Qa7 Rc5 Bg8 Nbc4 Nd5 Be6 R1f6 Kh1 Bf7 Bf5 Ke7 d8R+ Nc7 Be6 Bf2+ Rd1 Ke8 Bc8 Be6 Nd7 Nd8 Rh8 Be1 Rd6 Nd5 Rh5 Bf2+
K1Bn2b1/2nRRQ1p/n5n1/Pkbr1r2/2q4p/b1B1Q1P1/Qp2N2P/3r1B2 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 e5 Nc3 exf4 Ne4 g6 Ng3 g5 Nf5 Ra6 Nh4 gxh4 Nh3 Ra4 Ng1 Ra8 Kf2 Kd7 Kf3 b5 Ke4 c5 d4 f5+ Ke5 c4 e4 f3 a4 c3 g3 f2 a5 c2 d6 Kc6 d7 b3 Qf3 f4 Qg4 b2 Qg7 b1N Nh3 b4 Be2 f1R Bd2 c1B Bc3 b3 Ng1 f3 Qf7 Rd1 Bf1 f2 Ne2 Nh6 d5+ Kb5 d6 Qc7 d8Q Na3 Qg5 Na6 Qe3 Qc4 d7 Bc5 d8Q Be6 Qdd2 Rad8 Qa2 Rhf8 Rb1 R8d7 Rb2 Rdd8 Rd2 Bb2 Rd7 Bc1 Qe7 Bg8 Qf7 Bb2 Re7 R8d5+ Ke6 Bc1 e5 Bb2 Kf6 Bc1 e6 Bb2 Rd7 Bc1 e7 Bb2 Bg2 f1N Ke6 Nd2 e8B Nf3 Re1 Ne5 Bh3 Ng6 Bf1 Nf5 Ng1 Nd6 Ne2 Nh8 Ke7 Ng6+ Kd8 Nb7+ Kc8 Bc1 Qa1 Nd8 Qa2 Nc7 Kb8 Na6+ Ka8 Bb2 Qff4 Rff5 Qff3 Nc2 Bf7 Ncb4 Be6 Ba3 Qff4 b2 Qff3 Rh5 Qf7 Rdf5 Ra7 Rfd5 Bc8 Rhf5 Rd7 Nc7+ Kb8 Ra1 Qee7 Ka4 Nf4 Nce6 Ka8 Kb5 Re5 Rad1 Ne2 Na6 Qg5 Nef4 Ree7 Nfe6 Qe3 Nec7+
q1R1Q3/1N3rb1/1PNB4/rn1n1K1Q/1nPrp3/1b3NR1/2ppP3/b1k2rQ1 w - - 0 1 illegal: No proof kernel
2Q2n2/3Nb3/1p1n4/Pn1Q1qq1/1n1Q1Pbp/k4p1r/2rKRPn1/N1N2B1R w - - 0 1 illegal: No proof kernel
1q1nQ3/r1Q1bR2/b2P1p1q/4p2q/2B1PP2/N2K1p2/R1R1qrk1/1B1nBq2 w - - 1 2 illegal: No possible last move
5k1N/2qp1Nnn/rp2Q1Q1/1qpN1P1n/b3R1n1/QPPn2R1/2Kb3B/2r5 w - - 0 2 legal: proof: g4 e5 d4 h5 dxe5 hxg4 b3 f5 Nf3 a5 Ng1 g3 Qd4 a4 Qc3 a3 Bh3 g2 Bg4 fxg4 Qb2 axb2 Kd2 g5 a4 c5 e4 g3 h4 g4 f4 b6 f5 Nf6 c3 Bb7 a5 Qc7 e6 Ra6 e7 Nh7 e5 Bc6 h5 Bh6+ Kc2 Ba4 Nh3 g1N Nf4 g2 Nd5 g3 Rh3 Bd2 h6 Nf3 Na3 g1N Nc4 g2 Rg3 Nfg5 Ra3 Kf7 e6+ Kg8 Ra2 Ne2 Nd6 g1N Nf7 Nh3 Ra3 Nef4 e8Q+ Nf8 e7 Nc6 Ra2 Nh5 h7+ Kg7 Ra3 Ne6 Ra2 Rg8 h8N N3f4 Ra1 Nd3 Rb1 Be1 Bf4 Bd2 Re1 Nce5 Re4 Ng4 Bd6 Nh7 Bf4 Ra8 a6 Ra7 Qb8 Ra8 e8Q Ra7 Qe7 Re8 Qg5+ Kf8 Qg6 Neg7 Qb7 Raa8 a7 Re6 Qc6 Ree8 Kd1 Re5 Qce6 b1Q+ Ke2 Qb2 Kd1 Qa1+ Kc2 Qf1 Rd4 Re1 Re4 Nc1 Be5 Qb5 Bf4 Nd3 Be5 Re8 a8Q Rc8 Qa5 Ra8 Qb4 Ra6 Qa3 Qbc6 Bd4 Rd1 Bg1 Qb5 Bh2 Rc1+
n1QKbnq1/4b3/2Pp3B/1p1nRp2/2Nr4/rP1P2n1/2Q1NN1R/k3qnR1 w - - 1 2 illegal: No possible last move, all moves rejected
1b1kB2q/r1N1b3/QPr5/p1R1n1N1/K2pqq1p/6rP/1N1P3n/1Rq2QQ1 w - - 0 2 legal: proof: c4 e5 b4 b5 a4 bxa4 b5 e4 b6 e3 Bb2 Ba6 Bf6 Bb5 cxb5 gxf6 Qc2 exf2+ Kd1 f5 Kc1 f4 Qb3 Nf6 Qd1 Ng8 Kb2 f5 g4 h5 e4 c5 Ka3 d5 g5 a5 b7 f3 b6 f4 h3 h4 g6 c4+ Kb2 a3+ Ka2 c3 Kb3 a2 g7 c2 e5 c1Q e6 Ra7 e7 Rh6 Bg2 f1R Na3 f2 Nb5 f3 Qc2 Nf6 g8Q Nbd7 b8Q Ng4 Qb7 Nh2 Qa6 Rc6 Na3 Ne5 Rb1 a1B Qcc4 Re1 Qd3 f1Q Ka4 f2 Nf3 Qe2 Nc4 f1Q Ng5 Qe4 Qf3 Kd7 e8N Re3 Nc7 Be7 Qff8 Bd4 Nb2 Rg3 Bf3 Qe8 Bh5 Qff4 Rd1 Qa8 Be8+ Kd8 Rf1 Qb8 Rf3 Qc8 Rc3 Bdc5+ Rc4 d4 Qgg7 Bcd6 Rc5 Qcg4 Qff7 Qh5 Qfc4 Qh8 Qf1 Rd3 Nh7 Rc3 Qgg1 Rd3 Ng5 Rg3 Na8 Bb8 Nc7 Re6 Qe3 Rh6 Qeg1 Rc6
2B1qr2/1q1b1p2/kN3Pn1/1n2Pb2/pB2pq2/R3PQ1K/Bb1Q3R/r3q1Q1 w - - 0 2 illegal: No possible last move, all moves rejected
4qq2/1qB1RN2/3p1p2/2P1nRN1/K4pq1/1r1NPP2/2knQrb1/Q1b2rR1 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 Bd3 b5 axb5 e6 Bf5 exf5 Kd2 Ke7 g4 Ke6 c4 Ke5 Kc2 Ke4 Kb3 a5 b6 h5 g5 h3 b7 a4+ Ka2 f4 b4 a3 Kb3 h4 b5 d3 b6 a2 g6 h2 g7 d2 Qf1 d1Q+ Kb2 h3 Qe2 Qe8 Nf3 Nf6 g8N Nc6 b8Q Ra3 b7 Ne5 Rg1 h1Q Bd2 h2 Nh6 d6 c5 Bg7 Bc3 Bh3 Ba5 Bg2 Qa7 Rh7 b8R Rc3 Qe1 Kd3 Bc7 Ne4 Na3 Nd2 Ng5 Qg4 Nc2 Qf8 Rd1 a1R Rb7 Rb1+ Ka2 Rcb3 Nb4+ Kc3 Nd3 Kc2 Qe2 Bh8 Rge1 Qf1 Qa8 h1Q f3 Qhh5 Qa4 Qg6 Qa8 Q6e6 Qa4 Qee8 Qa5 Qh1 Rg1 Qhh5 Qa6 Qg6 Qa4 Qe4 Qd4 Q4c6 Ra7 Qb7 Qa1 Rb4 Ka3 Bg7 Nf5 Rh2 Nh6 Rb5 Ka4 Bh8 Rh1 Bf6 Rdg1 Rf1 Ra8 Bh8 Rd8 Rb3+ Rd7 Nc6 Re7 Bb2 Rd7 f6 Nhf7 Bc1 Re7 Rh8 Rh5 Rg8 Ne6 Rh8 Rf5 Rh2 Neg5 Ne5+ Ka5 Bh1 Ne4 Rhf2 Neg5 Qec8 Ka4 Bg2 Qd4 Qcb8 Qa1 Qbe8+
3Q1NrR/k6B/r2b3p/2RK1Pr1/1br1p1nR/1B2Pp1q/1Q5P/qqn1B3 w - - 1 2 illegal: No proof kernel
bn1Q2Q1/q1nr1P1n/1q2pbQ1/B4p2/Nb1Rp1PN/R3P2K/5r1R/1k5n w - - 0 1 illegal: No proof kernel
7R/k4bbQ/q1nRr1Qr/R1qp4/3P3K/Bp1bP2p/1P2NNq1/bn4N1 w - - 0 2 illegal: No possible last move
8/2p1Bb1n/1rPbq1qP/3R1nr1/1Q2QP2/1K4rp/B1br1pBk/Q1RN4 w - - 0 1 illegal: No proof kernel
1Q1qR1K1/1NQb4/1q1b1rpP/np6/1P4N1/P3p2k/B2B1b1N/qB1r1q1n w - - 0 1 legal: proof: d4 f5 e4 h5 exf5 a5 b4 c5 g4 cxd4 a3 hxg4 Ra2 a4 Rb2 Rh4 Rb3 axb3 Be3 Rh6 Bc1 Rh8 Kd2 Kf7 Kd3 Kf6 Kc4 b5+ Kd5 e5 h4 g6 f4 g3 c4 e4 c5 g2 h5 e3 c6 b2 c7 d3 Nf3 g1B Nbd2 b1Q Qc2 d6 Nc4 d2 Nh2 d1Q+ Bd3 Qe1 Bd2 Ra6 Ne5 Bd7 c8B Qf1 Qc7 Qa1 Bb1 Nc6 h6 Na5 Neg4+ Kf7 f6 Bf2 f5 Ne7+ Ke4 d5+ Kf4 d4 Ke5 Qe2 Rc1 Qf1 Rc6 Rb6 Re6 Rc6 Bb7 Qb8 Bc8 Qb6 Bb7 Rc1 Bd5 Rd1 Bda2 d3+ Qc3 Ke8 f7+ Kd8 f6 Nf5 Kd5 Bd6 f8N Ng3 f7 Nh1 Re4 Rh7 Ne6+ Ke7 Qc1 Rh8 Qc7 Rf8 Nc5+ Be5 Rd4 Beg3 Nb7 Bd6 Ne5 Kf6 Re4 Kf5 Neg4 Kg5 Re7 Kh4 Re8 Rh8 f8Q Kh3 Qf4 Rf8 Qe5 Bc6+ Ke6 Rf4 Nf6 Bd7+ Kf7 Rf5 Kg7 Rf3 Nfg4 Rf6 Bc1 d2 Kg8 Re1 Qb8 d1Q Qf4 Qdd3 Bd2 Rd1 Qc4 Qdd4 Qc6 Qd8 Qcc7 Qb6
B3q2R/2r1BP1b/R2Pb1nk/1pbQ4/1Pq1Nn2/1R1QpQ2/1p6/Kb3rq1 w - - 0 1 illegal: No possible last move, all moves rejected
1b3Q2/p1q2Nnr/PN2r1bp/KNRQ4/B1rR1P2/q2p4/P3n1Rq/3r3k w - - 0 1 illegal: No proof kernel
Nnqr4/2P1N2r/p1P1r1b1/P4pQ1/NK1pBqQB/4Q3/3nR1q1/2k2qb1 w - - 0 1 legal: proof: b4 e5 a4 c5 bxc5 g5 d4 exd4 g4 h6 f4 gxf4 g5 h5 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 Ke7 c4 Ke6 h4 Ke5 e4 b5 g6 d5 c6 b4 c5 a6 c7 g3 h5 d3 c6 Kd4 g7 f3 a5 g2 e5 b3 e6 b2 e7 f2 e8Q Bf5 h6 Bc5 h7 Nf6 g8Q Qc8 Na3 b1R Nc4 Bg6 Rh2 Rb4 Be2 f1Q Bf3 Rb5 Be4 Qf4+ Ne3 Rb1 Qg4 Ra1 Ba3 Re1 Qee6 Bb6 Be7 Ba7 Qg7 Rd8 h8N Re2+ Kc1 d2+ Kb2 d1Q+ Ka3 Kc3 Nc4 Qdf1 Nb6 Kd2 Kb4 Kc1 Qh6 Re3 Qhg5 Rh3 Qee5 Rh7 Qd4 Rd6 Qd3 Re6 Qe3+ Kb2 Ne2 g1Q Nc3+ Qgg2 Qeh3 Kc1 Nca4 Nh5 Qhg3 f5 Bd8 Nf6 Be7 Qh3 Re2 Qhg2 Qb3 Ne8 Qbh3 Nd6 Bf6 Nc4 Qe3+ Nd2 Bd8 Be8 Ng6 Bf7 Bf6 Be8 Ne7 Bf7 Nc4 Bd4 Ncb6 Bg6 Qeh3 Bg1 Qe3 Ra7 Na8 d4 Qh6 Qf8 Bg5 Qc8 Bh4 Rb7+ Ka3 Rb5 Qhg5 Rd5 Kb4 Rd8
r3n3/b2pKQ1b/6rB/1n1RR1Rp/5NQ1/1rP2N1P/1P2p2b/rNk1qq2 w - - 0 1 legal: proof: e4 b5 d4 f5 f4 c5 a4 cxd4 axb5 g6 Be2 Bb7 Bg4 fxe4 f5 Ba6 f6 Bc8 Bf5 gxf5 Kf2 Kf7 Kg3 Ke6 Kf4 Kd5 Kg5 Kc4 g4 h5 b6 e5 h3 a5 c3 f4 b7 f3 Ne2 d3 Qc2 a4 Qd2 Kb3 Rd1 e3 Na3 f2 Rb1 f1Q Ra1 e4 Ra2 Bd6 Nc4 a3 Qe1 Kc2 Ne5 d2 Nc4 Na6 b8Q Bh2 Qf2 Bb7 Nf4 Qe8 f7 e2 f8N e1B N8g6 e3 Nh4 Nf6 Nf3 Be4 Qb4 Bh7 Ra1 a2 Rb1 Bg8 Kf5 a1R g5 Rb8 g6 Nc7 g7 Bh7+ Kg5 Qe7 g8R Nb5 Re8 Qe4 Re5 Ra6 Ra1 Ne8 Ra4 e2 Ra5 Qa8 Qa4+ Kb1 Qb4 Rg6+ Kf5 Rb7 Qa4 Qd8 Qb4 Qh4 Na3+ Ka2 Qc4+ Ka1 Qg1 Bf2 Qf7 Ba7 Qg4 Qhe1 Nb1+ Na3 Rad5 Rb3 Rc5 Nb5 Rcd5 Qh4 Re1 d1R Be3 Rc1 Red1 Qhe1 Rc5 Nec7 Rdd5 Ra8 Bd2 Rg5+ Kf6 Rg6+ Ke7 Ne8 Ng2 Rd1 Bh6 Ka2 Nbd2 Ra1 Nb1 Rb4 Rg5 Kb3 Rge5 Kc2 Nf4 Rb3 Rg5 Kc1 Rde5 Qd2 Rcd5 Qde1
1rr2q1B/1nQK3N/R1bbQNk1/p2p4/1PbP3p/3b2q1/n3B1QP/2B4n w - - 0 2 illegal: No possible last move, all moves rejected
1Kb4Q/nbrB1bpq/4rb2/pP4PQ/p2N1Q2/Pn2R3/1k3N2/Nr1qB3 w - - 0 2 legal: proof: f4 b5 g4 h5 b4 e5 c4 exf4 g5 d5 cxd5 Bg4 Na3 Bc8 Qa4 bxa4 Rb1 Rh7 Rb3 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 Kd7 d4 Kd6 h4 a5 e4 f5 b5 c5 h5 c4 h6 c3 h7 c2 Rh5 f3 Kg3 f2 Kf4 g3 Rh3 g2 Re3 Be7 Nh3 g1R Bd2 c1Q Nc2 Nc6 a3 Nf6 Be1 Na7 Na1 Re8 h8Q Qb1 Be2 f1B Bg4 Bb7 Nf2 Rc8 Bh3 Rc7 e5+ Kd7 e6+ Kd6 Qh4 Ne4 Qh5 Bf6 e7 Nc5 Qf3 Rh8 e8Q Nb3 Qeh5 Rh6 Bg4 Bc4 Qe4 Kd7 d6 Bf7 d5 Qh8 Qd4 Qh7 Bh3 Qd1 Qc4 Kc8 d7+ Kb8 d8Q+ Bc8 d6 Kb7 d7 Kb6 Qd3 Kc5 Qd2 Kc4 Qh8 Rh1 d8N Rf1 Ne6 Rg6 Kg3 f4+ Kh4 f3 Kg3 Rg1+ Kf4 Rh1 Nd4 Bb7 Nd3 f2 Bd7 f1B Nf2 Bfg2 Kf5 Bc8 Kf4 Bgb7 Kf5 Be8 Ke6 Bf7+ Kd6 Rh6 Re2 Rg1 Qf4 Rf1 Rd2 Kc3 Rd3+ Kb2 Rh3 Rc1 Re3 Rb1 Kc7 Rg6 Ng4 Rf2 Kb8 Rc2 Nf2 Rc7 Qfg4 Bd8 Qf5 Re6 Qf4 Bf6
q4rRn/3pq1pP/1k1n2P1/1q1pRqB1/3Kb1NQ/Q2P1rb1/2R1N3/2rN4 w - - 1 2 legal: proof: f4 h5 a4 e5 g4 exf4 g5 b5 axb5 c6 c3 Bd6 Bg2 Bc5 Bd5 cxd5 Qc2 Bd6 Qf5 Bf8 Qg4 hxg4 Kf2 a5 h4 f5 b4 a4 e4 f3 Ke3 a3 h5 g3 e5 f4+ Kd4 f2 g6 f1Q e6 f3 b6 f2 c4 g2 b7 a2 b5 Ra7 c5 Qc7 h6 Kd8 b6 Qd6 c6 Ra3 h7 Nh6 Rh5 Qb5 Ne2 f1Q Nbc3 g1R Nd1 Na6 b8Q Nf7 b7 Nc7 Qa8 Qe7 b8Q Rf3 Qa3 Ne8 Qg3 Ned6 Qh4 Kc7 Re5 Kb6 c7 Ba6 c8R Qh3 Rc3 Qf5 Rc2 Re1 Rb1 a1Q+ Rbb2 Rg8 Rc8 Qa2 Rbc2 Nh8 Re8 Qa5 Ra8 Bd3 Rac8 Be4 d3 Qb1 Bg5 Qbb5 Rd8 Qa8 Rdc8 Qef7 e7 Rh1 e8N Qe7 Nf2 Rc1 Nf6 Qee6 Re8 Be7 Nd1 Rf8 Ng4 Bf6 Rec8 Qe7 Bh6 Bg5 Re8 Bf4 Bg5 Bg3 Rd8 Rf6 Rg8 Rf8
1QNb3K/2b3q1/1bBr3P/B2p2RN/b1pB1p2/r1QqN1P1/1qP2n2/1n5k w - - 0 1 legal: proof: b4 e5 f4 g5 d4 gxf4 g3 exd4 a4 b5 axb5 h5 Ra3 h4 Rf3 h3 Rf2 Nh6 Rg2 hxg2 Bd2 Ng8 Be3 Na6 Bc1 Nb8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 Kf5 Kd5 h4 a5 b6 c4 b5 a4 b7 a3 e3 d3 h5 a2 h6 a1B b6 f3 Bd2 f2 Qe1 Na6 b8Q Nc5 b7 Na4 Rh5 Qf6+ Kg4+ Ke4 Rg5 d5+ Kh5 Be7 Bc3 d2 Be5 d1Q+ Be2 f1Q Bg4 Bd7 Bd4 Qdd3 Nh3 g1B Qc3 Qg7 Nf4 f5 Bh3 Kf3 e4 Rh7 e5 Bd8 e6 Qc1 e7 Qb2 e8N Bf2 Nd6 Nf6+ Kh4 Bg1 Nh5 f4 Nc8 Ne4 Bf5 Kg2 Nd2 Bc7 Nf1 Nf2 Ne3+ Kh1 Bg6 Rh8 Be8 Bb5 Bc6 Rd8 Qa7 Rd6 b8B Bd8 Qb6 Ra7 Bc7 Ra8 Qb8 Ra7 Qd2 Nc3 Ba5 Nb1 Qc3 Ra8 Bc7 Ra3 Ba5 Ne4 Kg4 Ba4 Kf5 Qa7 Nf6 Bc7 Kg6 Nf2+ Kg7 Bd8+ Kf8 Qg7+ Ke8 Qc7 Be5 Qc1 Kf8 Nh3 Kg8 Rd7 Nd1 Bb6 Nh5 Nf2 Qd2 Qb7 Bg7 Be5 Kh8 Qb2 Qc3 Qa7 Ne3 Qb7 Qa7 Bb8 Qa8 Rd6 Bd4 Qd7 Qb7 Bb8c7 Qb8 Qg7+
BQ6/n2b1NRR/4P3/rb3P1p/2p1qBQp/b1k1n3/1bP1Br1r/1KqQ4 w - - 0 1 legal: proof: e4 b5 d4 g5 a4 e5 h4 gxh4 axb5 exd4 e5 f6 Nd2 f5 Ne4 fxe4 Kd2 Ke7 g4 Ke6 f4 Kd5 b4 c5 b6 a5 b7 h5 e6 a4 b5 d3 b6 Kc4 g5 d5 g6 e3+ Ke1 e2 Kd2 a3 g7 d4 Bb2 e1Q+ Kc1 a2 Rh2 Nh6 g8B Ng4 Bg2 Ne3 Bf7 Ra5 Ne2 Nc6 b8Q Bd7 b7 Na7 Ng1 Rh7 Rb1 a1B Bg6 Rf7 Nh3 Rf6 Ba3 Kc3 Ng5 c4 Rb2 d2+ Kb1 d3 Nf7 Bb5 Ra2 Bb2 Bd6 Qd7 Bc7 Bfa3 Qg8 Qc6 b8Q Qe4 Bf3 Qf2 Rg2 Qe2 Qc1 d1B Bg4 Qe1 Be2 d2 Bf5 Qf2 Rg7 Qfg2 Rh7 Qh2 Qg4 Bd7 Bf1 Bf3 Be2 d1R Ra1 Rh1 Qd1 Qg2 Bd6 Rh2 Be5+ Qd4 Be4 Qh1 Bd6 Qd2 Ba8 Bfc6 Bc7 Qe4 f5 Rg6 Bf4 Bb5 Qf3 Rgg2 Qg4 Rf2 Ra2 Bb4 Ra4 B4a3 Rb4 Ba4 Rb7 Bab5 Ne5 Bc8 Rbg7 Bcd7 Nf7 Qc1+
5r2/p1b1P1Bn/1nN4b/PKPQ1Q2/1pq1Rqrq/1b1R1Q2/p3R1B1/1kq5 w - - 0 1 illegal: No proof kernel
r2k4/P4QbR/1R4RQ/rP2q1p1/p3r1N1/1nB1b3/Pp1bn1q1/1Q1N1K1b w - - 0 1 illegal: Other
1r2Qqn1/2N1PB1p/2P1np2/1Qb2k2/3bp3/BN1bnP2/q1Q2r1R/1K1N2n1 w - - 0 1 illegal: No possible last move
4k2N/2qpP1B1/r1Pq3p/Q3rnK1/p2Pq3/3b2n1/QbB3BR/2n1RnR1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Na3 exf4 axb5 Ba6 b6 Bb7 Nb5 Bc8 Nc3 c6 b5 c5 Nd5 Bb7 Nb4 cxb4 Ba3 Ba6 Bc1 Bc8 Kf2 a5 Kf3 f5 g4 a4 d4 h3 c4 b3 e4 h2 b7 b2 c5 b1Q c6 Be7 b6 Bf6 g5 Ra5 g6 Qb4 e5 Be7 e6 Nh6 g7 Qc7 g8B Na6 b8R Qbd6 b7 Re5 Qc2 Nc5 Bg2 Nd3 Qa2 Bg5 Bd2 Nc1 Ne2 Be7 Re1 h1Q Be3 Bg5 e7 Qh4 Bb3 Qh1 Kf2 f3 Kg3 f2 Kf3 f1N Bc2 Ng3 Nf4 Rg8 Ng6 f4 Nh8 Nhf5 Kg4 f3 Rg1 f2 Rb1 f1N Bd2 Nb3 Re1 Nc1 Be3 Bh6+ Bg5 Rf8 Bf6 Bd2 Bg7 Bc3 Kg5 Bb2 Ra8 Rg8 b8Q Rf8 Qbb3 Rg8 Ra5 Ba6 Qc3 Bd3 Bh3 Qe4 Bg2 Rb5 Qc5 Rb6 Qc3 Ra6 Rd5 Rf8 Qa5 Rf6 Rb5 Re6 Rc5 Re5 Rd5 Qc5 Rd6 Qb4 Rh6 Qbd6 Rh2 h6+
2B2r1R/PpNbKn1Q/2Q3p1/3p1b1R/1B1rqP2/2rr1k1q/3P4/1B2bnR1 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 c5 b4 cxb4 g5 b3 Nc3 h6 Nd5 hxg5 Nb4 axb4 Bg2 g4 Bh3 Qb6 Bf1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Kd5 Kf4 a4 e5 h4 g3 c4 e4 f3 b2 a5 b1Q h5 g6 f6 e3 c5 e2 f7 e1R c6 b3 c7 b2 h6 g2 a6 Re3 h7 Nh6 a7 Rc3 Be2 Bc5 f8Q+ Nf5 Bf1 Nc6 Qe2 Ne5 Qf6 Bf2 Qc6 Ng3 Kd6 Qe4 Rh5 b1B Ba3 Qh4 Bb4 Rf8 h8R Qh3 Ke7 Be1 Qeb5 d5 Bd3 Bd7 c8B Nf1 Qa4 Kg3 f4 Rc4 Qb3 Rd4 Nf3 g1R Ng5 Nf7+ Ne6 Kf3 Qbc3 Rg3 Bc2+ Rd3 Qg7 Rd4 Qg8 Kf2 Qh7 Rgd3 Kf6 Kf3 Nc7 Ba2 Rd1 Bc4 Bb1 Bf5 Be6 Rac8 Ke7 Bb5 Qc4 Bd7 Qc6 Bf2 Rc1 Ne3 Rh1 Be1 Rg1 Nf1 Qc3 Nd8 Na8 Bb5 Qc5 Rc6 Nc7 Nf7 Qb6 Rcc3 Qd6 Ne5 Bc8 Bbd7 Qc6 Nf7+
4nr2/3R2n1/2p1bk2/3ppq2/bqbB2Q1/2P2P1B/RnBQ1NP1/b3Q1Kr w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 f6 d5 Kf7 d6 Ke6 Nd2 Kd5 Nc4+ Kc6 dxe7 Kc5 e6 Kc6 Ne5+ fxe5 e8Q h5 a4 b5 e7 b3 a5 b2 a6 b1B f3 h3 Kf2 b4 c3 h4 a7 h2 Nh3 b3 Bd3 Kd6 Ng1 Ke6 Nh3 d5 Qg6+ Nf6 e8B c6 Ba6 b2 Ra2 Bc2 Qdd3 b1B Qh6 Qa5 Qhh7 Qb4 Qc4 Nbd7 Ra5 Nb6 Rg1 h1Q Qf4 Ba2 Qb7 Na4 Qh2 Bc4 Qg3 Nb2 Be3 Ba4 Ra1 Qb1 Ra2 Qf5 Bg6 Ne8 Qg4 Kf6 Kg1 Be6 Nf2 h3 Bd4 Bh6 Qh7 Bc1 Qh6 Rb8 a8Q Rf8 Nd1 Rh8 Qd2 h2+ Kf2 h1N+ Kg1 Rh7 Nf2 Ng3 Bc8 Nh5 Ra7 Nhg7 Rd7 Rh2 Qb7 Nd3 Bh7 Bb2 Qa8 Ba1 Qb7 Qc5 Qb1 Qb4 Qbe1 Nb2 Bg6 Qh5 Bc2 Qf5 Rd6 Nc7 Bd7 Rf8 Bc8 Nce8 Rd8 Bd3 Rd7 Bc4 Ra7 Bf7 Qh5 Qh7 Bh3 Qf5 Rd7 Be6 Qg4 Rh1+
1r6/rp2q1BP/1R1nB1P1/2npQ1r1/1PbQ4/p3Q3/4N1q1/BkbKnn1R w - - 0 1 illegal: No proof kernel
1qk3rB/1N1q1r1R/1nb3p1/3pQ3/2BPR1r1/2QbP1qq/pK3BP1/2Q2n2 w - - 0 2 legal: proof: f4 b5 h4 e5 a4 exf4 b4 g6 h5 Bg7 h6 c6 hxg7 bxa4 Nc3 c5 b5 Qb6 Na2 Qd8 Nb4 cxb4 c4 f5 d4 a5 Kd2 d5 Kc2 Kd7 e3 h5 b6 b3+ Kb2 a3+ Kb1 f3 c5 h4 b7 f2 Nh3 f4 Bc4 f1R Rh2 b2 Qe1 a4 Qg3 f3 Ra2 f2 Ba6 Ne7 g8Q Nf5 Qg5 Ng3 Ng1 h3 Ne2 Rh4 Nc3 Rg4 c6+ Kc7 Qe6 Nd7 Ne4 Nb6 Nd6 Qd7 Qge5 Kd8 b8B Bb7 Kc2 b1Q+ Kc3 Qb5 Bd2 Qb1 Rc2 a2 Bc4 a3 Be1 a1Q+ Rb2 a2 Q6f6+ Qe7 c7+ Kd7 Qf8 Bc6 Nb7 Qh7 Qa3 Kc8 Rh1 h2 Qa5 Qd7 Kb3 Qe4 Qc3 Qf4 Rc2 Qd1 Kb2 Qdf3 Rc1 Rg1 Ra1 f1B Bf2 Bd3 Rf1 Qf8 Qc1 Qfd6 Be1 Qff8 Rf4 Rf1 Re4 Rf7 Bf2 Qg8 Re1 h1Q Qc3 Qh5 Rh1 Qhf5 Rh7 Nf1 Bg1 Rf4 Qa5 Ba4 Bf2 Qh3 Bb3 Rg4 Qe6 Qdg3 Re5 Qg7 Re4 Q7e5 Qe1 Qef4 Qc1 Bab5 Qec6 Ba4 Q6c3 Bc6 Bc4 Qdd6 Na5 Kd7 Nb7 Qfe5 c8Q+ Ke7 Qf5 Qd7 Bc7 Rg8 Bd8+ Ke8 Be7 Qb8 Bf6+ Qe6 Bh8 Kd7 Qf4 Kc8 Qe5 Qd7
nk2B1NR/r4NQ1/1br1pB2/1P2K2b/pQ6/PpnQ3n/1qb1Pq2/3Bn3 w - - 0 2 illegal: No proof kernel
3Qqb1K/1rp1PR1r/1B1Q2P1/2q5/2N3pk/bqN4p/bRP3qR/1N1n3n w - - 0 1 legal: proof: g4 b5 d4 g5 h4 e5 a4 exd4 axb5 gxh4 g5 f6 Bh3 f5 Bg4 fxg4 Kd2 Kf7 Kd3 Kg6 Ke4 Kh5 Kf5 d5+ Ke5 a5 e4 a4 b4 a3 f4 d3 f5 a2 f6 d2 g6 d4 f7 h3 b6 d3 b5 h2 b7 Nc6+ Kf4 Nge7 b8N Be6 b6 Na7 Ke5 Nb5 Kf6 Qe8 e5 Nc3 b7 Kh4 Na3 h5 Qf1 d1Q Bd2 Qb1 Qd1 Qb3 Rb1 a1B Nd7 Ra7 b8R Rb7 Nb6 Rg8 Ne2 Bb2 Nbc4 Nf5 Be3 d2 Bb6 Rg7 Ra1 Bc1 Nb1 Ng3 Raa8 Bd5 e6 Bca3 e7 Be6 Rf1 h1Q Rf2 Qh3 Rh2 Nh1 Ra5 Bd5 Rc5 Be6 Rf5 Bd5 Qf1 d1Q Qf4 Qd3 Qd6 Nd1 Nec3 Qe3 Rf3 Qc5 Rff2 Rg8 Rf1 Bh6 f8Q Rg7 Rd2 Qg2 Rf4 Qec6 Qd8 Qe8 Rdf2 Kg3 Rd2 h4 Re2 h3 Rd2 Qe4 Rh2 Qg2 Ra8 Rg8 Na2 Bb4 Nca3 Qba4 Nac3 Kh4 Rf3 Bb3 Nc4 Bf8 Ra7 Qab5 Ra2 Ba3 Rb2 Ba2 Rf2 Qb3 Rf5 Qea4 Kf7 Rh8 Rf2 Rh7+ Kg8 Qe8 Rf7 Rg7+ Kh8 Rh7+
NQRq1kr1/1Q1r3P/1b3b2/n4rpp/Kr3b1P/Bp1n3P/1NQBb3/1B6 w - - 0 1 illegal: Other
1n2R2Q/1Q3p1p/5P2/1PbRnN1N/2NPnbp1/2rbQq2/3r4/k1bn1KB1 w - - 0 1 illegal: No possible last move
2QbBb2/b1q1PBN1/3Rpnb1/1Pp1P3/pk2nnQr/5nK1/1NQ5/r1B5 w - - 0 1 illegal: No proof kernel
NR1RnQ2/1p2nK2/2Q2npB/4R1P1/1P6/q1Pnp2Q/4kN2/1b1brbbr w - - 1 2 legal: proof: e4 a5 g4 h5 d4 a4 g5 c5 b4 cxd4 Bc4 f5 Bb3 axb3 Qg4 hxg4 exf5 Rh7 Bb2 Rh4 Bc1 Rh8 Ke2 Kf7 Kd3 d5 f4 e5 a4 b2 h4 g3 f6 Kg6 f5+ Kh5 a5 Kg4 f7 g6 h5 g2 a6 Bc5 f8Q Qa5 f6 Nc6 f7 Nf6 h6 Ne8 a7 Ne7 h7 Qa3+ Nc3 b1B Nh3 Kf3 Bb2 g1N Nf2 Ne2 Rd1 Bh3 Re1 Rc8 a8Q Ng3 Qa4 Ne4 Qc6 N4f6 Qh6 Rd8 f8Q Bf1+ Re2 Rd6 Ra2 Re6 Qh4 Qa4 Nb5 Qa3+ Bc3 Ba7 Nc7 Bb6 Na8 e4+ Kd2 d3 Qh3+ Kf4 Bd4 Re5 Bc5 d4 c3 Ba7 Qhc8 Kf3 Q8e6 Rg8 h8R Rg7 Re1 Rh7 Rd1 Rh1 Qec8 Qa6 Ra5 Bb6 Bd6 Re6 Re5 Qa5 Kc1 d2+ Kb2 d3 Kb3 Ke2 Kc4 Qa3 Bc5 Rd6 Qh3 Re6 Rc1 d1N Kd4 Nb2 Rd1 d2 Rg8 Nh5 Rh8 Nf5+ Kd5 Nd3 Be7 Be3 Bf6 Bc5 Bg7 Be3 Bh6 Bb6 Ng4 Bg1 Nf2 Re7 Rc1 d1B Rg8 Rc7 Ke6 Ne7 Kf7 Nhf6 Rh8 e3 Rg8 Rd7 Rh8 Bbc2 Ra1 Bb1 Rg8 Qc1 Raa5 Qa3 Rad5 Rd6 Rd4 Rd5 Rh8 Ra5 Rd8 Rd5 Qg8 Ng7 Qcc8 Nf4 Re8 Bdc2 Qcd7 Rd1 Qc6 Re1 Rb8 Nd3 Qd8 Bd1 Qdd6 Ned5 Rhd8 Nge8 Qf8 Ne7
Q1qN2kq/2p5/1N2qq2/n3Rp2/2P4r/2rr2N1/P1RbpP1B/KQ2bb1R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 d5 g5 Nd7 g6 Ndf6 exf6 hxg6 Bg2 g5 Bf3 g4 Be4 dxe4 d4 Kf7 Kd2 e5 h4 g5 d5 b5 c3 b3 d6 e3+ Kd3 b4 d7 b2 Kc2 b3+ Kd3 e4+ Kd4 e2 h5 e1B h6 e3 h7 g3 Rh6 g4 Rh3 g2 Rh1 g3 Na3 b1Q Qc2 b2 Qd1 Ne7 Rh2 Qe4+ Kc5 b1Q Nc4 Qbb7 Rh1 Bh6 Nb6 Ra3 Ne2 Qe6 Kd4 g1R c4 g2 Bb2 Rc3 Ng3 e2 Rc1 Bhd2 Rc2 Qbc6 Qc1 Bb7 Qb1 Qc8 d8N+ Kf8 f7 Qe8 Kc5 Nc6 Kb5 Ba8 Ka4 Na5+ Kb4 Kg7 f8R Rf1 Ba3 g1Q Bc1 Q8g6 Re8 Qh2 Ba3 Qef6 Re5 Bg2 Ka4 Qgf7 Bd6 Q7e6 Kb4 Rg1 Ka4 Bf1 Kb4 Nb3 Ka3 Na5+ Kb2 Qhh6 Ka1 Rg2 Qb5 Rh2 Qb1 Rh4 Nc6 Rd8 h8Q+ Kg6 Qf8 Kh7 Qe8 Rd7 Nd8 Qhg7 Qf8 Qh8 Qe8 Rf7 Qc6 Rd7 Qa8 Kg8 Rc5 Qhh6 Ne4 Rf7 Bh2 Qhh8 Ng3 Rd7 Re5 Rdd3
RrQ1b1Nb/n5Q1/3npbB1/3rP2p/1b2PK1P/R3Nn2/4pr1N/1k1b2Q1 w - - 0 1 illegal: No proof kernel
4Q2r/1RBp1b2/3PrbpQ/1n1K1n1N/5P1N/bQ1Bb1br/2p3P1/n1k2N2 w - - 0 1 legal: proof: b4 a5 e4 f5 h4 fxe4 a4 c6 c4 g6 h5 b5 h6 bxc4 b5 Qb6 Ra2 Qa7 Rb2 Qd4 Rb4 Qg7 hxg7 axb4 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 f4 h5 a5 e5+ Ke3 h4 d4 c3 b6 c5 a6 h3 b7 c2 d5 h2 a7 b3 Bb2 c1B+ Qd2 c4 Ba3 b2 Bd3 c3 Bb4 c2 Bc5 Nh6 g8N Na6 b8Q Bb7 Qe8 Nc7 Ne2 Nb5 Re1 h1R Rf1 Rh3+ Rf3 Bd6 Bd4 Ba3 d6 Bd5 Nbc3 b1N Rg3 Bf7 Qf8 Re8 a8Q Re6 Bb6 Bcb2 Qd1 Nd2 Qf1 Nb3 Nf6 Na1 Ncd5 Bc3 Ng1 Bd2+ Ke2 Be3 Nf3 Bd4 Qc1 Nc7 Bb5 e3 Kd3 e2 Kc4 e1B Qad8 e4 Qb1 e3 Qde8 e2 Nh5 Ke4 Nh4 Bf6 Ne3 Nf5 Nf1 Bd2 Rb3 e1B Qh6 Bg3 Rb4 Be3 Qb3 Nd5 Ba5 Nc3 Bc7 Bg1 Nd2+ Ke3 Nf1+ Ke2 Ba6 Kd1 Rb7 Be3 Bb5 Kc1 Ba6 Nb5 Kd5 Nbd4 Bd3 Nb5
1nB1K1nk/1Q1p1nN1/4Q3/8/r1PnRQr1/1rpnNNb1/1bPP1B1p/7b w - - 0 1 legal: proof: h4 g5 e4 gxh4 e5 a5 e6 a4 b3 a3 Qe2 fxe6 Qg4 e5 Qd1 e4 Nc3 c5 Rb1 c4 Rb2 axb2 Nb1 c3 a3 Qc7 a4 Qc4 bxc4 Ra6 Rh2 Ra7 Rh1 Ra8 Ke2 Kf7 Ke3 Kg7 Kd4 e5+ Kd5 h5 f4 b5 g4 h3 g5 h2 g6 b4 a5 h4 a6 h3 f5 e3 a7 e4 Qg4 e2 Bg2 e1N Na3 b1N Nf3 e3 Qf4 e2 Nb5 b3 Ba3 b2 Nd6 Rh4 f6+ Kh8 f7 Rg4 Nf5 Nd3 Ne3 e1B Bc5 Bg3 Re1 h1N Re2 Be7 f8N h2 Ne6 Ne5 Ng7 Na3 Re1 b1R Bb6 Bg5 Kd6 Be7+ Kc7 Bd6+ Kd8 Nb5 Ke8 Nf2 Bc5 Rb4 Bd4 Nfd3 Bb6 Nbc6 Bc5 Rb8 a8Q Ra4 Qb7 Nf7 Qb6 Ra5 Nd1 Ncd4 Ng5 Ne7 N7e6 Nf3 Bf2 Nf3e5 Bb7 Ba3 Qc7 N5c6 g7+ Kg8 Re5 Ra4 Ne3 Nbd4 Ba6 Rb5 Qb6 Bb7 Qc7 Ba8 Bc8 Nb8 Qb6 Bc6 Qb7 Bh1 Nf3 Bb2 Re4 Ng5 Qa7 Rb3 Qb7 Kh7 g8Q+ Kh6 Qgf7 Ng8 Ng7 Kh7 Q7f5+ Kh8 Qe6 Nf7
1kBr2n1/p1rr1r2/r4p1n/5N1q/1pQ2P1q/PQ2bBPR/4rN2/K1B4Q w - - 0 1 legal: proof: e4 d5 b4 dxe4 f4 g5 a3 c5 h3 cxb4 Ra2 g4 Rb2 Nh6 Rb3 Ng8 Rf3 gxf3 Rh2 Qd4 Rh1 Bg4 hxg4 Qd8 c4 Kd7 d4 Kc7 Kd2 e5 Kc2 b5 Kb2 h5 g5 b3 c5 e3 g3 e2 d5 e1R c6 e4 g6 e3 g7 f2 Nc3 h4 Bg2 f1R Ka1 e2 Nf3 h3 Nd2 h2 Bb2 b4 Nde4 Qh4 Nd2 f6 Qb1 Nh6 g8Q Bc5 Be4 Be3 Qd1 Rh7 Bg2 Rf7 Nce4 Rf2 Qb1 Rd1 Bc1 e1R Bf3 Rfe2 Nf1 Qh5 Nf2 b2+ Ka2 Rd4 Qe4 Rd3 Qc4 Rdd2 Qh7 b1R+ Qhc2 Kc8 c7 Nc6 d6 Ne7 Qb2 Rd5 d7+ Kb7 c8B+ Kb8 d8Q Neg8 Qa5 Rdd7 Qad5 Rd1 Qdc6 R1d6 Qbc2 Rb3 Ka1 Rc3 Q2b3 Rcc2 Q6e4 Ra6 Qed5 Rcd2 Qdc6 Rc7 Q6e4 Rdd7 Qec6 Bb6 Ne3 Bc5 Nf5 Be3 Rd1 h1Q Q6d5 Q1h4 Rh1 Q4g5 Rh3 Qgg4 Qdd1 Qgh4 Qh1 Rd4 Bcb7 Rdd7 Bbc6 Kc8 Bce4 Rc5 Bb7+ Kc7 Qb2 Rad8 Qbb3 Kb8 Bc8 Rcc7
1q3b1K/6Nn/1Qp1n1qB/2P1R2p/k2br3/prQ1PR2/1Qp2RP1/r2bN3 w - - 0 1 legal: proof: c4 e5 a4 b5 f4 bxa4 h4 exf4 e3 g5 hxg5 d6 c5 d5 Bc4 dxc4 Ke2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 a5 d4 h5 b4 f5 g6 a3 g7 c3 d5 f3 d6 f2 d7 f1Q Qc2 f4 Ra2 c6 Nd2 f3 Ne2 f2 Ng3 a4 Bb2 Qg5+ Nf5 Qd3 d8Q f1R Rh3 Rf4 Nf3 Qg3 Ne1 Nf6 g8R Na6 Rg5 Nc7 Ng7 Bg4 Qc1 Qh2 Rf3 Nh7 Qa1 Ne6 Qb6+ Kc4 b5 Kb3 Qc1 Qg6 Ba1 Rg8 Raf2 a2 Qd2 c2 Qd4 a3 Qc3+ Ka4 Bb2 a1B Rf5 Rb8 Rg5 Qd3 Rf5 Nhg5 Kf6 Re4 Re5 Nh7+ Kf7 Be7 Kg6 Rgd8 Kf7 Bf8 Kg8 Qg3 Kh8 Qf4 Qb7 Qd6 b6 Qf6 Qc7 Qg6 b7 Rd7 Qb6 Rdd8 Rff5 Bd1 R5f3 Qc7 Re2 Rd3 Ref2 Rbd8 b8Q Qb7 Qd2 Rb3 Bc3 Rd3 Bd4 Rb1 Qc3 Rc1 Qbb2 Qa7 Q8b6 Qb8 Ref5 Rb1 Be5 Rc1 Bf4 Rb1 Bh6 Rc1 Qd2 Rb3 Re5 Rb1 Qbc1 Bd4 Qb2 Rc1 Qdc3 Ra1
2Kr2r1/1p1P4/kPN1pPr1/3RN2Q/3p4/2p1nbb1/qn4qQ/1BQnN2R w - - 0 1 illegal: No possible last move, all moves rejected
5q2/2Rb3N/1Pr1qnP1/1K2krn1/1R1N2pQ/bpQ1pR2/1P4p1/2QrBn2 w - - 0 1 illegal: No proof kernel
7Q/1pP1QqPp/B1KBp1R1/1BN3nP/1qpkn3/Q1n1b2r/R2r4/b6b w - - 0 1 illegal: Other
Q1Qr1qQ1/5n2/rPb1p2p/P3Kp1B/5N1k/n4P2/BBq1pb2/3bN1Rr w - - 0 1 legal: proof: b4 b5 c4 a5 e4 d5 h4 g6 a4 bxc4 b5 g5 hxg5 dxe4 Ra3 Qd4 Rb3 Qd8 Rb4 axb4 Ke2 f5 Ke3 Kf7 Kf4 Kg6 g4 c5 d4 b3 a5 b2 b6 e3 f3 e2 d5 c3 d6 c2 d7 c4 Rh3 c3 Rh2 Na6 Nh3 Nc7 Rh1 Bb7 Qd5 Bc6 Na3 b1B Ke5 Nh6 Rg1 Nb5 Bb2 c1Q Nc2 Ra6 Ne1 c2 Qc4 Qc8 d8Q Na3 Qe4 Qa8 Qc8 Qd2 Qd5 c1R Qdd8 Qc2 Nf4+ Kg7 g6 Nf7+ Ke6+ Kh6 g7 Kg5 g8Q+ Kh4 g5 h6 g6 Bg7 Bh3 Bd4 g7 Bf2 Bg4 Ba2+ Qd5 Bb3 Bh5 Rd1 Qh7 Rd8 g8B Rb1 Qg7 Qc5 Qg6 Bd1 Qe4 Qc2 Qh7 Nh8 Ke5 Ra1 Ba2 e6 Qg8 Nf7+ Kf6 Qb8 Qd5 Qd6 Qe4 Qf8 Qd5 Bb5 Qda8 Bc6 Rg5 Qc1 Ned3 Bda4 Rg6 Qd2 Rg7 Rg1 Ne1 Bd1 Rg5 Rh1 Rg1 Nd6+ Ke5 Qd3 Qh7 Qc2 Qg8 Nf7+
1Q1q1N2/1PQR2rn/rp2RbpK/2QR3N/1Pn3pb/q3Pn2/1p4k1/Bb6 w - - 0 1 illegal: No proof kernel
RB4QN/2Q1qQBb/1prp4/pp2rP2/1b2KB1R/qP1P4/2n4b/5nqk w - - 1 2 illegal: No possible last move, all moves rejected
1N1N3k/3P1Qp1/P4q2/2ppR3/p3KRP1/3QbN1q/1n1rrRnB/1br3n1 w - - 0 1 illegal: No possible last move, all moves rejected
1r4rb/1bbpp1RN/B1qR1n2/1q3rpP/4P2K/p2RP1QQ/n3k1B1/B7 w - - 0 1 illegal: No possible last move, all moves rejected
b3R2n/Rp2R2N/1rkp2nq/2pN3P/1Q1BpqP1/3P3Q/r1r1bb2/1N3K2 w - - 0 1 illegal: Other
2kq3Q/p1r1Pr2/1BR1NbpQ/6n1/2p1N3/PQ2q2n/2Kr2Pp/1RR1b1n1 w - - 0 2 illegal: No extended proof kernel
rBR1n1Q1/N7/1P1Qnp2/2P3r1/1r1Bp1Bk/1p3p2/1Pb3Qq/KbN1b1r1 w - - 0 1 illegal: No proof kernel
Qr3n1K/1pbp2p1/1b1bN2R/p1nn4/rQ1b2PN/Pq2P3/2k4B/Q2R1R2 w - - 0 2 illegal: No proof kernel forced: wxLB
3Q4/kPr1p3/2bn1R1p/qp2Q3/1NPrP3/3R1Bbn/Q1n2N1p/1NK1n2b w - - 0 1 illegal: No proof kernel
5Nr1/1n1Pb2R/1pp2r1p/3K1b1n/6QP/b1NQ4/1PqBp3/N1BQnn1k w - - 1 2 illegal: No possible last move, all moves rejected
1b4NR/2n1b1np/RqR1B1p1/2P1Npk1/2bKn1p1/P1Q1bQ2/r4Q1P/4r3 w - - 0 1 illegal: No proof kernel
2nb2BN/pP2BrQ1/2r3Q1/P5pn/5k1q/3n1P1p/p1K3bq/QNn3NR w - - 0 1 illegal: No proof kernel
4q3/1N1rB1KR/N1kpqp1n/2n1Q1N1/R1P1r2b/PR3P1p/3p3Q/3n1n1b w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 g5 hxg5 e5 b5 e4 b6 axb6 e3 b5 Be2 b4 Bd3 exd3 Kd2 h5 c4 b5 g4 d6 g6 Kd7 g7 h4 g5 b3 g6 b2 f3 b4 e4 b3 e5 Ba6 e6+ Kc7 e7 Bb5 e8N+ Kc6 Qe1 Ra7 Nc7 Qe8 Nh3 Nd7 Na6 Nc5 Ng5 Be7 Nc3 b1Q Nce4 Nh6 g8R b2 g7 Rd7 a3 Qa2 Rb1 Ba4 Rh2 Bd1 Rf8 Be2 g8Q Bf1 Qh7 Bg2 Qg3 Rg8 Qe5 Bh1 Rh3 Bf6 Qh8 Qe6 Ra8 Re8 Qh2 Qb3 Qg7 Bd8 Qge5 Qb8 Ra7 Nb7 Nec5 Qc8 Kd1 d2 Ke2 d3+ Ke3 d1N+ Kf4 Bf6 Bd2 Ree7 Ba5 Qf8 Bd8 Qe8 Rc1 b1N Rc3 Nd2 Rb3 Nf1 Ra8 Nf5 Kg4 d2 Kh5 Nd4 Kh6 Nf5+ Kh7 Nh6 Qef4 Bd4 Qe5 Bf2 Kg7 Be1 Nc7 Bf2 Ra4 Bg3 N7a6 Bf2 Rg3 h3 Rg2 Bh4 Re2 Rc7 Re1 Red7 Be7 f6 Ree3 Na5 Rb7 Nb3 Ra7 Rb7 Rd3 Rb5 Nb7 Rd5 Re3 Nc5 Rb3 Rd4 Ra8 Qh5 Rh8 Re4 Rh7 Qe8
N1kb4/P4pNp/1BK2P2/r3Qn2/N1n2Qpn/2pQ1r2/1qPn2B1/Rn4q1 w - - 0 1 illegal: No proof kernel
Q4B2/1np5/p2p1pRK/bnQN1R1n/qPPNkr2/8/2NPr1n1/2n1q2Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 g5 e5 g6 Ke7 Bh3 Bb7 Bg4 hxg4 Ra2 Bd5 Ra3 f6 Ra1 Bf7 gxf7 exf4 Kf2 Kd6 e4 Ke5 h4 g5 c4 a3 b3 a2 h5 a6 h6 g3+ Kf3 g4+ Ke2 g2 h7 g3 Kf3 Ne7 Kg4 f3 Kh5 f2 Rh3 f1N Rh2 Qe8 Qe1 Nec6 Rh3 Ne3 Qf2 Nd8 Ne2 g1Q Na3 g2 Nc2 Nbc6 Ned4 Qe1 Rf3 g1N Ba3 Bb4 Kh6 Ba5 f8N Ng2 Nfe6 Ne2 Bf8 d6 b4 Nb7 Nf4 Ng3 Nd5 Nh5 Qg1 Rg8 h8Q Na7 Rg3 Qa4 Rg6 Nb5 Rd1 Qf2 Rf1 a1N Qh1 Qg3 Qg7 Qh4 Qd7 Qg3 Qc6 Re8 Qc5 Qe1 Rg7 Qf2 Ne7+ Kf4 e5 Nb3 e6 Nc1 Rg5 Nd8 Rg7 Qf3 Rg3 Rg4 Rf2 Rh4 Rf1 Qf2 Rg6 Ke4 Nd5 Qe1 e7 Nb7 Rf5 Rf4 Nc6 Rc8 e8Q+ Kd3 N6d4 Ra8 Bg7 Rb8 Qf8 Re8 Qh8 Re6 Qa8 Re2 Bf8 Ke4
1b3bQ1/P2K4/kp4p1/qr1B1n1N/QPq1p1Pn/Q3qR2/Rp4b1/RqN5 w - - 0 1 legal: proof: h4 c5 e4 a5 d4 cxd4 b3 f5 h5 fxe4 Nc3 a4 Ba3 Ra6 Bb2 a3 Nb1 axb2 h6 g6 Rh3 Rf6 Rh4 Rf7 Rh1 Rg7 hxg7 Qc7 Bc4 Qb6 Bf1 Qd8 Ke2 d5 a4 Kd7 g4 Kc6 f4 Kb6 c4 h5 b4 e5 c5+ Ka6 c6 h4 f5 e3 Kd3 h3 c7 h2 a5 e2 f6 e1B f7 Ne7 g8Q Nbc6 Ra4 Bg3 Nh3 Rh5 Nf2 Nf5 Nh3 Nh4 Bg2 Ne7 Ra3 Nef5 Ra2 b6 Re1 h1Q Qa4 Qg5 Nf4 Qg1 Nc3 Bb7 c8Q Qf2 Rea1 Qe3+ Kc2 d3+ Kb3 d4 Kc4 d2 Nce2 d1Q Nc1 d3 Bd5 d2 Qc7 Ka7 Kb5 Qdb3 a6 d1Q Qc3 Qdc2 Qd3 Qb1 Qc3 Q3c2 Qca3 Qc8 Bb3 Bg2 Bd5 Rh7 Nh5 e4 Nb3 Qcc2 Nc1 Qcb3 Kc6 Qc4+ Kd7 Bb8 Qc2 Qf6 Qca4 Qe5 Be6 Qa5 Bd5 Be7 f8R Bc5+ Ng7 Rh5 Rf6 Rg5 Nh5 Bf8 Rf7 Ng7 Rf3 Rf5 Ba8 Rb5 Bd5 Ngf5 Bf7 Ka8 a7 Kb7 Bd5+ Ka6
1rR5/p2p1P1p/R1pnq3/BkbQ3P/1N1BnQQ1/4p2R/P1br4/2Kn3r w - - 1 2 legal: proof: e4 b5 d4 f5 c4 bxc4 f4 g5 e5 e6 d5 Bg7 Bd3 Bh6 Be4 Bf8 Nc3 Qf6 Nce2 Qd8 dxe6 fxe4 f5 Qe7 Nf4 gxf4 Nf3 Qf6 Ng1 Qd8 Kd2 f3 b4 c6 g4 f2 h4 f1R f6 Be7 g5 Ba6 g6 Rf3 b5 Bb7 b6 Bd6 h5 Nh6 e7 Bc5 g7 Rf2+ Ne2 Ba6 b7 Nf5 Rh3 Rg8 Bb2 c3+ Kc1 e3 Nf4 c2 Bd4 Rd2 Qg4 Nd6 Rb1 Bd3 Rb6 Na6 Nd5 Rb8 Nb4 Kf7 e8R Qe7 Qf4 Ke6 f7 Bg6 Rc8 Qe8 Nd3 Kd5 e6 Kc4 e7 Bf5 Rb2 Bg6 Nb4 Kb5 Rb3 Nc7 Rc3 Ne6 Ra3 Ng5 Ra4 Nge4 Ra6 Qd8 e8Q Qf6 Qee5 Qe6 Qd5 Bf5 Kb2 c1N+ Kb1 Ra8 b8B Nd3 Bc7 Ndf2 Bb6 Nd1 Kc1 Rb8 Bc7 Ng3 Ba5 Bc2 Rh1 Nge4 Rh3 Rf8 g8Q Re8 Qg7 Rg8 Qgg3 Rg5 Qgf3 Rg1 Q3g4 Rh1
6Q1/2N1p3/4qN1Q/1Pp2bpB/1brnP1r1/2k2qRP/Kpnp2Rn/1QR5 w - - 0 1 illegal: No proof kernel
1q1nBN2/p2nP1Np/3QbR2/NQ2r3/2K1QqP1/3rp3/PR1pkp1n/2b5 w - - 0 1 illegal: No proof kernel
bQ2Rn2/1P1n3n/1NN1R1Q1/n1Q5/Rr1Bpb1q/p1p1p3/P3P1p1/kr1K4 w - - 0 2 legal: proof: d4 f5 g4 h5 c4 b6 c5 bxc5 gxh5 cxd4 Bg2 d3 Be4 fxe4 f4 Kf7 b4 Kf6 h4 g5 b5 d5 f5 Ke5 h6 Kd4 h7 e5 f6 c5 b6 a5 f7 g4 h5 g3 h6 e3 Na3 Kc3 Rh3 d4 Nc2 g2 Rh4 a4 Ba3 e4 Rf4 c4 Be7 Kb2 Bc5 a3 Rc1 c3 Rg4 Ne7 Rg3 Ng6 Nf3 Bb7 Qd2 Qh4 Kd1 Bd6 f8Q Ra4 Ne5 Ba8 b7 Nd7 Nc6 Rb4 Qe7 Rd8 h8R Bf4 h7 Ngf8 Qe1 d2 Rg6 Re8 Qd6 Re5 Qg3 Rf5 Ba7 Rfb5 Qc5 Rb6 Re6 R6b5 Ne1 Rb6 Rc2+ Ka1 Nf3 R6b5 Rb2 Rb6 Kc2 d1N Nfe5 Nf2 Nc4 Nh3 Kd1 d3 Qg6 d2 Rb3 R6b5 Nb6 Ng5 Rg8 Ra5 h8Q Ngh7 Qhe5 Rab5 Qb8 Ng5 Kc2 d1N Kc1 Ngh7 Rh8 Rd4 Rb4 Nb2 Ra4 Rdb4 Rg8 Nc4 Kd1 Na5 Rh8 Ng5 Rg8 Nfh7 Rd8 Nhf8 Rde8 Ngh7 Qch5 Bc7 Nd5 Rb2 Bd4 R5b4 Nb6 Bf4 Qc5 Rb1+
1r3Q1r/k1B1bNp1/n5RQ/p3RNbr/3p2Pp/q1n2K2/1QP1pRrP/8 w - - 0 2 legal: proof: d4 c5 e4 cxd4 a4 d5 a5 d3 a6 bxa6 Bf4 a5 Bc1 a4 Be2 f5 Bf3 d4 Bf4 Be6 Bc1 Bd5 exd5 Kf7 Be4 fxe4 Bf4 Ke8 Bg5 Qb6 Bc1 Qd8 b4 Kd7 f4 Kc8 Kf2 Kb7 g4 e5 b5 h5 f5 d2 b6 a3 d6 a6 d7 h4 f6 e3+ Kf3 a2 Na3 Ne7 Nc4 Nd5 Nh3 Be7 Ng5 Nc3 Rf1 Rh5 f7 a5 f8R Na6 Rf2 Qb8 d8Q Qd6 Rf6 Qa3 Qh1 d1R Nf7 Rg1 Rg6 Rg2 Qg1 Rc8 Ncd6+ Kb8 b7 Ka7 Rb1 a1R Rb5 Rb1 Nf5 Rb4 Qe1 Ra8 Qd2 e4+ Kf4 e2 Qe8 e3 Kf3 e1B Rc5 e2 Qh6 Bf6 Bf4 Be7 Bc7 Bd2 Re5 Bdg5 Qb5 Rh8 Qe8 Rb6 Qf8 Nc5 b8Q+ Ka6 Qbe8 Ka7 Qb5 Rb8 Qb2 Na6
2Bq1R2/1p1NK1b1/pnkrR1pp/Q6P/qQp1N3/1bP1P1QN/6rr/2r5 w - - 0 1 illegal: No proof kernel
N1q2n1K/2R5/p2pk1b1/P6Q/RnpRP2p/b1p1r1Bq/2PpBB1Q/5n2 w - - 0 1 legal: proof: g4 f5 d4 fxg4 d5 b5 d6 exd6 Nd2 d5 Nc4 bxc4 Bd2 d4 Bh6 Ke7 Bc1 Ke8 h4 g5 Be3 g3 Nf3 a6 Ng1 g4 Bh6 Ra7 Bc1 Rb7 Rb1 Rb5 Ra1 Rg5 hxg5 Bh6 Kd2 Bg7 Ke1 Bf8 Kd2 Kf7 b4 c5 e4 h5 f4 c3+ Kd3 g2 a4 h4 f5 g3 b5 Ne7 g6+ Kf6 b6 Rh6 g7 Kf7 g8Q+ Kf6 b7 Nec6 a5 Qe8 Ra4 Rh8 Qh5 Qf7 Nh3 g1N Be2 g2 Ng5 Qe8 Ne6 Nf3 Qg3 g1Q Be3 Rg8 Qh2 Qg2 Nc7 Qh3 Na8 Nd2 Rd1 Nf1 Kc4 d3 Kd5 c4 Bf2 Ba3 Rd2 Ke7 f6+ Kf8 f7 Ke7 f8R Nb4+ Ke5 Rg3 Rf4 Re3 Rg4 Qg8 Kf5 Qd8 Kg6 Qe8+ Kh7 d6 Bg3 Qc6 Kh8 Bf5 Rg7+ Ke6 Rd1 Nd7 b8B Bg6 Ba7 Nf8 Rh7 Qc8 Rc7 Rf3 Baf2 Re3 Rb1 Na2 Rb5 d2 Rd5 Nb4 Rd3 Kf6 Rd4 Ke6
N3N1bQ/5kpp/pKp1n3/bPnBB3/4q2P/pn1p1rQ1/1B1Pq3/2R4N w - - 0 1 legal: proof: b4 f5 f4 b5 a4 bxa4 c4 e6 g4 Na6 b5 Rb8 Ra3 Rb6 c5 Nb8 cxb6 fxg4 f5 e5 Rf3 Qg5 Rf2 Qd8 Rf4 exf4 Kf2 d5 h4 d4 e4 f3 e5 c6 e6 a3 e7 a6 f6 d3 Ke3 g3 b7 g2 Bb2 f2 Ne2 g1N Ng3 Nd7 Kd4 Nh3 b8B Nf4 Qe1 Nh6 Bg2 f1Q Bd5 Qe2 Nc3 Nc5 Be5 Be6 Na4 Bg8 Nb6 Nf5+ Kc4 Qb8 Na8 Nfe6 Kb4 Nfd4 Ka5 Qc8 Kb6 Kf7 e8N Ndb3 Qf2 Be7 Rc1 Qe4 Nh1 Bd8+ Ka7 Ba5 Qg3 Kf8 f7 Qd8 Nac7 Qf6 Na8 Qf1 Qf4 Qfe2 Qg3 Ke7 f8Q+ Kd8 Qff4 Ke7 Qfg5+ Kf8 Qd8 Kf7 Qg4 Kf8 Bc7 Bf7 Nd6+ Be8 Qg3 Rg8 Qc8 Ke7 Qb8 Rf8 Qc8 Rf6 Qb8 Bh5 Qh8 Rf3 Ne8 Bf7 Bf4 Bg8 Bfe5 Bb4 Kb6 Kf7 Qe1 Bc3 Qg3 Ba5+
4K3/npq1Qp2/pB1NRR1p/r3p3/p2qP1P1/2QBb2n/k4r1P/Br4R1 w - - 0 1 illegal: No proof kernel
5rNR/2R3Nb/3q1bQb/k1n3n1/pp4n1/4pQR1/PP2PnBN/K1r1r2n w - - 0 1 illegal: No possible last move, all moves rejected
rrQ3Q1/K1N1k1p1/np1n1RPB/n2Bp1N1/4P1b1/2b3Q1/NP2n2r/1b1nq3 w - - 0 1 illegal: No possible last move
3nBr2/1nr5/R1nN1Qq1/2p3N1/2P1rpRp/1k3P1N/bbRq3P/1Q1b1Kb1 w - - 0 1 legal: proof: e4 g5 b4 d5 b5 dxe4 f3 g4 Bb2 g3 Bd4 a6 Bf2 axb5 Ke2 gxf2 Qc1 b4 Qe1 Qd4 Qd1 Qd8 g4 Kd7 a4 Ke6 d4 Kd5 c3 Kc4 d5 f5 a5 h5 d6 c5 g5 b5 a6 e5 d7 b3 a7 b2 g6 f4 g7 b4 Ra6 e3 Ra4 h4 Ra2 b3 Ra3 e4 Nh3 Ne7 g8N Nbc6 Nh6 Rh7 Ra1 Ba6 Ng5 Bg7 Bh3 f1N Ng8 Nd2 Ke1 e2 Kf2 e1B+ Kg2 e3 Qc1 e2 Nf6 Ne4 Ra2 Bf2 Qg1 e1R Ng4 Nd6 Qf1+ Re2 Rg1 Nb7 Qc1 Re5 Kf1 Re4 Rg2 Bg1 Nf2 Qa5 Rg4 Rf8 a8R Ncd8 Qd1 Bb5 Ra6 Ba4 Qe1 Nec6 Nd2+ Kb5 c4+ Kb4 Qc1 b1B Rc2 b2 Qe1 Ba2 Qb1 Rd4 Nde4 Kb3 Nd6 Qd2 Ne6 Re4 Ng5 Nf7 d8Q Bc3 Qe1 b1Q Qf6 Bb2 Qd1 Nfd8 Qe1 Qa1 Qb1 Rd7 Rg3 Rc7 Bd7 Re2 Nfh3 Re4 Qe1 Qad1 Be8 Qb1 Rg4 Rd4 Rc1 Qg6 Rc2 Re4 Qb1 Kb4 Rc1 Bd1 Rc2 Kb3
4q3/2Q4p/2n1NR2/bp1r1rnQ/pB2Qr1K/bP1qn1RB/P5bP/1k2B2b w - - 0 1 legal: proof: e4 f5 f4 c5 d4 cxd4 Nc3 fxe4 f5 g6 Nd5 g5 Nf4 gxf4 Kf2 Kf7 g4 Kf6 c4 Ke5 c5 a5 g5 d5 f6 b5 b3 f3 Kg3 e3 g6 Ke4 f7 e5 g7 d3 c6 e2 c7 d2 Rb1 Kd3 Bh3 e4 Bg2 e1Q+ Kf4 f2 Kg3 f1B+ Kf4 a4 Bf3 d4 Bh5 e3 Bf3 e2 Ba3 Nh6 g8Q Bb7 c8Q Nc6 Bc1 Ba3 f8B Nf7 Kg4 Ng5 Bd5 Bg2 Qge6 Rb8 Bc5 Rf8 Nf3 Rf5 Rg1 Qd7 Qc7 Rbf8 Bb4 Qf1 Qg3 e1B Kh4 Qe8 Qde2+ Kc2 Q6e4+ d3 Be6 Bh1 Bb2 Ba8 B2c3 Rf4+ Bg4 R8f5 Rb2+ Kc1 Nd4 d1N Ne6 Ne3 Q2f3 Bg2 Rf2 d2 Qe2 d1R Rf3 Bf2 Be1 Bh1 Rg2 Bg1 Rff2 Rdd5 Q2f3 Qd3 Qe2 Rf3 Bh3 Kb1 Qc7 R3f4+ Qg4 Nc2 Rf3 Bb6 Rgg3 Ba5 Rf1 Ne3 Rf2 Rf3 Qh5 R3f4+ Bg4 Ne5 Qd7 Rf6 Qf3 Rc4 Qdf7 Rd6 Qf5 Bag2 Qc7 Rd5 Rf4 Nc6 Bh3 Re4 Qfg6 Ree5 Qe4 Rf8 Rfg4 Rf1 Rf4 Rf3 Rf7 Ref5 Rf6 R3f4+
Q2b1r2/2q1q1k1/b1p2Rp1/2P1R3/2B1r1nK/1NN2ppR/Q2Q1PP1/1n2qbn1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 b5 h6 Bb2 a6 Be5 axb5 Bf4 b4 Bg5 hxg5 d4 b5 a4 f5 c4 Kf7 h4 e5 h5 g6 h6 f4 a5 f3 d5 e3 h7 b3 c5 e2 a6 b2 a7 e4 d6 g4 d7 b4 Ra6 b3 Rf6+ Kg7 Rh4 g3 Rh5 Be7 Qc1 Nh6 Qc3 Ng4 Qd2 Ba6 Nh3 Nc6 Rd5 Nd4 Ng1 c6 Nc3 b1B Re5 Re8 h8R b2 Rh3 Qc7 d8Q Bbd3 Qd5 b1N Q5a2 Rab8 a8Q Bd8 Qd5 Rf8 Q2a2 Rb4 Qd6 Na3 Kd2 Bdb5 Qdd5 Rc4 Qd6 e3+ Kd3 e1Q Ke4 e2 Kf4 Nb1 Kg5 Ne6+ Kh4 Nf4 Qdd2 Re4 Rh1 Nh3 Rh2 Qd1 Rh1 e1Q Nge2 Qe7 Nd4 Ng1 Rh3 Qc7 Bc4 Qde2 Nb3 Qe3 Be6 Bf1 Bf7 Qf4 Bc4 Qe7 Rg5 Qb8 Re5 Qbc7
2q1Nr2/r2pk3/bb4Q1/Qnn1pp2/5PNR/3bNb2/B1pPPnR1/2K2r1Q w - - 0 1 legal: proof: c4 b5 h4 bxc4 b4 a5 b5 g5 Ba3 gxh4 Bb4 axb4 g4 h5 f4 c5 a4 e5 g5 f5 a5 h3 a6 h2 g6 h4 g7 b3 a7 h3 b6 b2 b7 c3 Ra6 c2 Rb6 c1R Rh6 c4 Ra6 c3 Rh6 Nf6 g8N Bc5 Na3 b1B Rg6 Nd5 Rg2 Bb6 Nf6+ Ke7 Nc2 Rf8 Ne8 Na6 b8Q Nc5 Nf3 Nc7 Ne3 Nb5 Qb7 Bc2 Qc6 Ba6 Qg6 Rb1 Qc1 Bd3 Kd1 Ra1 Qb1 c2+ Kc1 Qc7 Nc4 Qc8 Ne3 Rb8 a8Q Rb7 Rg5 Ra7 Bg2 Ra2 Rg4 Ra1 Rg1 h1N Nh2 Nf2 Bd5 Nd1 R1g2 Rb7 Rh4 Ra7 Nhg4 h2 Ba2 h1B Rf2 Bhe4 Rg2 Nf2 Kb2 Bf3 Qh1 Rf1 Qd5 Nd1+ Kc1 Ne4 Qc4 Nc5 Qa4 Ba8 Qb4 Bf3 Qa5 Nf2+
5b2/1nQN4/r1r2RQ1/3p1Rpp/1n2k1bQ/qb4PP/B1bPq2p/1q1RB2K w - - 0 1 illegal: No proof kernel
QB3qR1/4Nppp/3Q1B2/1np2Pqn/4bbPP/2r1r3/BR2bb1k/Kn1Q4 w - - 0 1 legal: proof: c4 d5 d4 dxc4 b4 a5 Nc3 axb4 d5 e6 Nb5 e5 Nd4 exd4 Kd2 Kd7 Kc2 Kd6 Kb1 Ke5 g4 b5 h4 c3 a4 d3 e4 c2+ Kb2 d2 f3 Kf4 e5 Kg3 a5 b3 e6 b4 d6 Nf6 f4 Bb7 e7 Nh5 e8Q Qg5 f5 Nc6 d7 Rc8 d8B Bc5 a6 Na7 Qe6 Be4 Rh2 Nb5 a7 Re8 a8Q Bf2 Ra5 c6 Ka1 b2+ Ka2 b1B+ Ka1 b3 Bf6 Bd3 Bg2 Be2 Nh3 Re7 Qd5 Re3 Nf4 Rc7 Bcb2 c1B Ng6 Be4 Ne7 Rc8 Bbd4 Rc7 Ba7 b2+ Ka2 b1N Ka1 Rc8 Bb8+ Rc7 Qh1 d1Q Qd6+ Qf4 Ra6 Qc2 Bf3 Qc5 Qhd1 Rc8 Rg2+ Kh3 Ra7 Qg5 Rd7 Rc7 Rd8 Bd2 Rg8 Rc8 Rg3+ Kh2 Bh1 B4d3 Bd5 Be4 Qf4 Qd6 Ba2 Qd8 Qc7 Qf8 Qb6 c5 Qc7 Re8 Qd6 Rc3 Rd3+ Bf4 Rd2 B4f3 Rb2 Bc6 Nd5 Ree3 Ne7 Be4
5rB1/nR1RKNn1/1p3n1n/3b3r/2P3pb/Pr2nq1N/1RNk1P2/3B2B1 w - - 0 1 legal: proof: g4 f5 d4 a5 b4 axb4 g5 c5 e4 cxd4 exf5 h5 Qg4 g6 fxg6 hxg4 Kd2 e5 Kd3 Ke7 Ke4 Kd6 Kf5 Kc5 c4 e4 h4 d5+ Ke5 b3 g7 Kb4 g6 b2 h5 e3 h6 b6 h7 e2 Nh3 e1N Be2 d3 Ng5 d4 Bf1 d2 Rh4 d1N Ne6 d3 Nc3 b1R Ne4 d2 Nd4 Nh6 g8R Be7 g7 Bb7 Ke6 Nd3 Be2 Nc3 Ng5 d1N Bf4 Qf8 Bh2 Nc6 Bg1 Ne4 a3+ Kc3 Ra2 Ne3 Nc2 Kd2 Nh3 Qf3 Rb2 Na7 Rb8 Nf6 g8B Bc6 Rb7 Rf8 Bd1 Nf4+ Ke5 N4h5 Ke6 Bd8 Kd6 Ng7 Rh5 Bc7+ Ke7 Bg3 Ra5 Bh4 Rd5+ Kc3 Rdd7 Bd5 Ra2 Rb3 Rb2 Rb8 Be6 Rhf8 h8N Kd2 Bg8 Rbc8 Nf7 Rc5 Nd6 Be4 Nf7+ Rd5 Rdc7 Rh5 Rd7+ Bd5
Nb2k3/2B2rBB/1q5n/N2P1rP1/2K4r/2b3pb/RRq1rnP1/1Rq2N1b w - - 0 1 illegal: No proof kernel
K4n2/B1nP2p1/R2NbB2/n2B2Nr/kn1bpRN1/r3P1qR/2P2q1q/r7 w - - 0 1 illegal: No proof kernel
1R4Nn/pn4rK/rpkN3N/P3Bp2/4bPnb/RrB3R1/2b2q1P/B5r1 w - - 0 2 legal: proof: e4 g5 b4 c5 Ke2 cxb4 Ke1 d5 exd5 g4 f4 h6 Qf3 h5 g3 Qd7 Bh3 gxf3 g4 Qc7 g5 Qd8 Bg4 hxg4 Kf2 Kd7 Kg3 e5 d4 f5 a4 b3 c4 e4 a5 e3 g6 f2 g7 f1B d6 b2 c5 e2 d5 e1R Ra3 Qg5 Nf3 Bd3 Rg1 Nf6 g8N Na6 Nc3 b1R Nb5 Bc2 Bd2 Rh6 Bc3 Rb3 Be5 Be7 c6+ Ke8 c7 Kd7 Ba1 Nc5 Bc3 Qh5 Ng5 Rc1 Rg2 Rg1 Nf7 Rg6 Nfh6 Qh3+ Kf2 Qh4+ Rg3 Rb8 Ke3 Rg7 Kd4 Bd8 Ke5 Be7 Rf3 g3 Ba1 g2 Rg3 Rf1 Bc3 g1N Ba1 Nh3 Bc3 Ng5 Ba1 Ke8 d7+ Kf8 d8B Ke8 d6 Kd7 Bc3 Kc6 d7 Rg1 Nd6 Rb6 Ba1 Ra6 Bc3 b6 Ba1 Bb7 Bc3 Ba8 Ba1 Rb7 c8R+ Rc7 Rb8 Nb7 Bc3 Rc8 Bc7 Nf7+ Ke6 Re8 d8B Ng4 Ba1 Bg5+ Be7 Rd8 Bef6 Nh8 Bfc3 Bf6 Ne8 Rd5 B7e5 Rb5 Nd6 Rb3 Re8 Qh3 Rf8 Bh4 Rb8 Rg5 Ke7 Qf1 Ke8 Qf2 Kf8 Ng6+ Kg7 Nh8+ Kh7 Nc5 Nhf7 Kc7 Re8 Bae4 Rd8 Kc6 Nfh6 Nb7 Rb8 Rg7+
2NBk3/nR1N4/2PR3q/p2R1Nr1/P1pB1nr1/1b1p1P1B/5b2/1b2nKrr w - - 0 1 illegal: No possible last move, all moves rejected
5q1q/7r/N2BP1rN/pBpn2r1/2bbnpR1/1B2P2q/P3N1R1/RKr1k3 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 Qc2 e6 Qf5 e5 dxe5 gxf4 g5 Rh6 Qh3 Rh8 Qg4 hxg4 Kd1 Ke7 Kc2 Ke6 h4 Kf5 b4 Ke4 b5 d5 e6 c5 g6 a5 h5 f5 h6 f3 b6 g3 b7 c3 g7 f2 h7 g2 e3 d4 Ba3 f4 Rh4 d3+ Kc1 d2+ Kc2 Na6 b8N Nb4+ Kb3 c2 Kb2 d1Q Ne2 Kd3 Na6 g1R Rh2 c1R Nbc3 Kd2 Rg2 Ke1 Nd4 Qh5 Nf5 Nf6 g8B Bg7 Ne2 Nbd5 Nh6 Qf8 Bf7 Rg8 h8R Ra7 Be8 Rf7 Ba4 Ne4+ Nd4 Bb7 Bfb5 f1Q Bb3 Qh4 Rg4 Qfh3 Rh7 Be5 Rhg7 Qhd8 R7g5 Rh7 Rg2 Rg6 R5g4 Nec3 Ne2 Bd4 Bb4 Qh8 Ba3 Qdf8 Bb4 Nc7 Ba3 Bd5 Bb4 Bc4 Ba3 Rb1+ Kc2 Ne4 Bb2 Bg7 Be5 Nd5 Bd6 Bd4 Rh2 Rg3 Rg2 Rd1 Rh4 R3g5 Rhg4 Ng3 Nc1 Ne4 Kb1 Rd2 Ne2 Rc2 Rh4 Rc3 Rhg4 Rc1+
N3b1K1/kp2pB1b/N4r1p/3qB1nP/5P1r/1N2R2P/1p2R2n/bqR1q2B w - - 0 1 illegal: No proof kernel
N3q1qN/K2b3r/rr1Pn2R/8/5PkN/3N1bPq/3b2R1/NqB3Qn w - - 0 1 legal: proof: c4 d5 cxd5 f5 f4 h5 a4 b5 axb5 h4 e3 h3 g3 g5 Bg2 hxg2 Kf2 gxf4 Ke2 f3+ Ke1 f4 exf4 Rh6 Nc3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 c5 h4 e5 b4 a5 d4 e4 h5 f2 h6 f1B b6 c4 h7 c3 b5 c2 d6 Ke6 d5+ Kf5 Kd4 e3 Kc5 a4 b7 e2 b6 e1Q Rh3 a3 Qe2 a2 Na3 Nf6 Qa6 Bd7 Nf3 g1R Rh6 Kg4 Nh4 Nc6 b8N Be2 b7 Nd4 Nc6 Bf3 b8N Qee8 Nb4 Bg7 Rb1 a1Q Rb2 Qb1 Nd3 Re1 Ra2 Re6 Rb2 Qc8+ Kb6 Qc4 Kb7 Ne4 Kb6 Nf2 Kb7 Rf8 h8N Rf7 Kb6 Nh1 Kb7 Bb5+ d7 Ref6 Ra2 Ne6 Kb6 Bf8 d8Q Rh7 Nd7 Bb4 Kb7 Qcb3 Qdb6 Bd2 Qg1 Qc4 Qab6 Ra4 Qa6 Qcc8+ Ka7 Qg8 Nf7 Qce8 Nb6 Bd7 Na8 Rg6 Nh8 Rf6 Bb2 c1Q Nc2 Qf1 Na1 Qh3 Bc1 Rg6 Rb2 Ra2 Rc2 Nc7 Rb2 Rb6 d6 Ne6 Rc2 Bb4 Rh2 Bd2 Rg2 Raxa6#
k1B2B2/1q2N3/5rbn/PRB2Q2/B2bn2n/1n2rP1B/R1n1P2r/6nK w - - 0 1 legal: proof: d4 c5 h4 a5 c4 g5 b4 gxh4 Qd3 axb4 Qb3 d5 Qf3 Kd7 Qxf7 Kc6 Nc3 e6 dxc5 d4 Nd5 exd5 cxd5+ Kb5 a4+ Ka6 g4 Ka7 d6 h5 f3 d3 Kf2 h3 g5 h2 Kg2 h4 d7 b5 a5 b3 g6 b4 g7 d2 c6 d1N c7 b2 Bd2 b1R Qf5 b3 Qh5 b2 Qg6 Nf2 Qc2 Nc6 Ra2 Nh6 g8B Nb4 Bf7 Nh3 Bb3 Qe7 d8B Bg7 Bf7 Bd4 Qf5 Nc2 Qf6 Bf5 c8B Bg6 Be8 Qb7 Qf5 Ra1 Bc1 b1N Qg5 Nd2 Bcd7 Nb3 Bf6 Kb8 Bb2 Ra6 Ba3 Ka8 Bfe7 Rf6 Bf8 Rd1 Bfc5 Rd3 Bc8 Re3 Ba4 Nf4+ Kf2 Ng2 Nh3 Rh7 Nf4 h3 Qg4 Nh4 Qf5 Rh8 Kg3 Rh7 Rg1 h1N+ Kh2 Ng3 Nd5 Ne4 Kh1 h2 Ne7 Ng2 Bcb4 Nba1 Nc6 Ng8 Bf8 Rh5 Bab4 Nh6 Bbc5 Rh4 Ne7 Rh3 Rb2 Nh4 Rb5 Nb3 Qe6 N4f5 Kg2 h1N Qe5 Nhf2 Rh1 Rh5 Kg1 Nh4 Qf5 Rg5+ Kh2 Rg3 Bg2 Nh3 Ra1 Rg4 Ra2 Ng1 Bh3 Rg2+ Kh1 Rh2+
2r2R2/1n2P2P/B3B1Nn/1r1K3R/4BqBp/bnkpQ2P/2n2q1B/2r5 w - - 0 1 legal: proof: b4 a5 g4 axb4 a4 d5 d4 c5 Be3 h5 Na3 bxa3 Bc1 e6 Qd2 Ke7 Qc3 cxd4 Qxc8 e5 f4 h4 fxe5 Qd6 Ra2 Qh6 Ra1 Qh5 gxh5 Ra5 Kd1 Ra7 Ke1 Ra8 Kf2 g5 Kf3 b5 e4 f5 c4 b4 a5 b3 c5 a2 h3 g4+ Kf4 g3 h6 d3 h7 d2 c6 d1N e6 Kd6 c7 Kc5 Ke5 Kb4 a6 g2 a7 d4 e7 f4 e8B f3 Ba6 d3 Bh5 b2 Ne2 g1Q Qe8 b1R c8B f2 Be6 f1Q Bhg4 Nd7+ Kd5 Nc5 e5 Rb8 a8B Nb7 Bf4 Qgf2 Bh2 Rc1 Nf4 Kc3 Ng6 Nh6 Rb1 a1N Rb5 Qf4 Rg1 Qe2 Rf1 Ba3 Rf3 Nb3 Rf2 Qg3 Rf8 Qef2 Qe7 Rg8 Qg5 Rc8 Qe3 Rg7 Bef5 Rg8 e6 Qgf4 e7 Rb8 Be6 Rh8 Kc6 Rg8 Rh5 Rh8 Qg3 Ne3 Qg1 Nc2 Kd5 Rg8 Qg3 Rc8 Qe3 Rg7 Nh8 Rf7 Ng6 Rf5+ Ne5 Rf6 Ng6 Qd6+ Ke4 Rf5 Bb5 N7a5 Ba6 Rb5 Bc6 Nb7 Bcd5 Qb4+ Ke5 N3c5 Bh1 Qa4 Kd5 Qaf4 Be4 Nb3+
3b1RB1/1Bq1B2q/rbrRPn2/2kB4/B2n3N/2b2Q2/b2P1P2/Knq2r2 w - - 0 1 legal: proof: g4 e5 b4 a5 h4 axb4 g5 d5 Na3 e4 Nc4 g6 Ne5 f5 Ng4 d4 h5 d3 cxd3 gxh5 dxe4 fxg4 e5 h4 e6 Qd7 Bh3 Qe7 Bf1 Qd8 a4 Ke7 e4 Kd6 a5 c5 g6 b5 a6 h5 e7 g3 e8B h3 a7 c4 e5+ Kc5 g7 b3 Ra5 h2 Ra6 b2 Ra2 b1Q Qg4 h4 Kd1 g2 Qf4 b4 Qg5 b3 Qh6 b2 Ra4 h3 Qg6 c3 Qh6 c2+ Ke1 Nc6 Rd4 Be7 Rd7 Nd4 Nf3 Nf6 g8B Qc7 Rd6 Be6 Bg6 Bd8 Qh5 Ba2 Nh4 Rh6 Be8 Rg6 Rg1 h1R Bfc4 h2 Ba4 Qa1 Qf3 b1N Bb2 c1B Kd1 Rc8 Bc3 Bb2 a8B Rh6 Re1 Rf1 Bcd5 g1B Bab7 h1Q Ba5 Bc3 Kc1 Nc6 Kc2 Bh2 Re4 Ra8 Rf4 Ra6 Rf5 Nd7 Rf8 Nf6 Re8 Bf4 Rf8 Be3 Bb4+ Kb6 Ba3 Rg6 Ng2 Qhh7 Nh4 Bed4 Re6 Be3 Be7 Bed4 Rd6 Kc5 Ng2 Be3 Nh4 Nd4+ Kd3 Qb2 Bbc6 Kb4 Bb7 Rg5+ Be4 Nb3 e6 Bb6 Qh1 Rc5 Qf3 Qa3 Kc2 Rc6 Qf5 Qh6 Bd5 Kc5 Qf3 Qc1+ Kd3 Qe1 Kc2 Qh7+ Ng6 Bca5 Kb2 Nd4 Ka1 Qc1 Nh4 Bc3+
2N1N2n/1K1N2BP/1B3nb1/3n2rn/k2q3b/n1n5/P1r3PR/q2NnQ1N w - - 0 1 illegal: No proof kernel
2q1kbNR/q2r1RR1/1Q2KqP1/BP6/3b1bb1/4P2R/rn3qRr/3N1n2 w - - 0 1 illegal: No possible last move
N6Q/Pk1K1n1R/3r1b1N/4N2b/n3b2P/N2Nnrqb/B1n3Pq/B2q4 w - - 0 1 legal: proof: c4 e5 a4 g5 b4 a5 f4 gxf4 Ra2 axb4 Qc2 d5 cxd5 h5 Qh7 e4 Ra3 h4 Rf3 exf3 Qxh4 Bd7 Qh7 Bc8 Kf2 Kd7 h4 c5 e4 Kc7 d4 b5 a5 c4 d6+ Kb7 d5 b3 e5 b4 e6 c3 d7 f5 d6 b2 e7 c2 e8N b3 Ng7 Qg5 Bb5 Be7 Qg6 Nh6 Ne8 Bf6 Ba4 Ra6 Be3 c1Q Qg7 Qc7 Qh7 Nc6 Bc1 Rf8 Qh8 Nd4 Nh3 Nc2 Rd1 Nf7 Na3 b1N Bb2 Nc3 Ba1 b2 Bb3 b1B Ba2 Na4 Rd4 Qb8 Nc7 Rc6 Na8 Qg3+ Kf1 f2 Ke2 f1N Nf2 f3+ Kd3 f4 Ke4 Ra6 Kf5 Nfe3+ Ke6 Qh2 Nd3 f2 Rd5 f1Q Rh5 f3 Rh6 f2 Rh7 Bc3 Ke7 Qd1 Ke6 f1B Ke7 Ka7 d8N Be2 d7 Qbg3 Nc6+ Kb7 Nce5 Bh5 d8N+ Kb8 Nf4 Bh3 Nfd3 Re6+ Kd7 Bd4 a6 Ka7 Ng4 Bf6 Nh6 Kb8 Nc7 Ka7 Nc6+ Kb6 a7 Kb7 Nb4 Nd4 Ne5 Be4 Nbd3 Ndc2 Na8 Rc8 Qf8 Rc5 Nc6 Rf5 Ne5 Rf3 Qh8 Rd6+
n1nRRN2/1N6/5PQ1/3rP1Kb/1N1b3b/r1b3Br/Pkp4b/1NNnq3 w - - 0 1 illegal: No possible last move
QrNn3B/4R2q/2PBR1r1/3BBP2/r7/r2P1b1q/2np1q1b/1KB3kn w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 f5 exf5 gxh4 d3 c4 Ke2 c3 Qd2 cxd2 c4 d5 c5 Kf7 Na3 Ke8 Nc4 dxc4 Kd1 Kd7 Kc2 a5 f4 h5 g4 e5 b4 h3 c6+ Kd6 g5 Kd5 b6 Kd4 g6 Ke3 f6 Kf2 b7 e4 b5 c3 g7 h4 f7 h2 b6 e3 Be2 h3 Rb1 a4 Ra1 a3 Bd1 a2 Bg4 e2 Bh5 e1Q Ba3 Bg4 f5 Nh6 g8Q Na6 b8B Qd7 b7 Bd6 f8B Nf7 Be7 Nd8 Ne2 Bf3 Bf6 Qh7 Ng3 Be5 Rc1 a1R Bbd6 Qg1 Bb2 Ra4 b8B Nb4+ Kb1 Nc2 Bf7 Kg2 Rf1 Qf2 Re1 Bf4 Rhf1 h1Q Re6 h2 Bc1 Ra3 Rfe1 R8a4 R1e5 Kg1 Ne4+ Qhg2 Re7 h1N Bd5 Bh2 R5e6 Qg4 Qe8 Qgh3 Qf8 Rg8 Bh8 Rg7 Be5 Rg6 Nd6 Ne3 Bc7 Nf7 Qa8 Nd8 Nc8 c2+ Kb2 Ng2 Bcd6 Ne1 Ba2 Rb3+ Ka1 Rb8 Bca3 c1R+ Bb1 Rc5 Ba2 Rc3 Bd5 Nc2+ Ka2 Nb7 Kb1 Rb3+ Bab2 Rba3 Bc1 Nd8+
1N1k1n1K/1n5P/q1RP2p1/1bR1b3/1rrrBqP1/7B/qQ1rR3/1Rn4R w - - 0 1 legal: proof: c4 a5 a4 b5 axb5 e5 f4 exf4 b6 d5 cxd5 Ba6 Kf2 Bb7 Ke1 Bc8 g4 h5 b4 h4 b5 Be6 Nc3 Bd7 Ne4 Bc8 Ng3 hxg3 Ba3 Nh6 Bc5 Ng8 Bb4 axb4 h4 f5 d4 c5 Kd2 b3 Kd3 b2 e4 b1R e5 f3 d6 f4 Ke4 c4 b7 f2 e6 c3 Kf5 c2 Kg6 c1R h5 f3 e7 g2 h6 Kd7 d5 Qa5 e8B+ Kd8 b6 Nf6 d7 Qa2 Qd2 Bd6 Ne2 g1N Bh3 f1Q Qb2 f2 Nd4 Nc6 b8R Qfa6 b7 f1Q h7 Rg8 Kf7 Ne2 Rh2 Na5 Nc6+ Kc7 d8R Bd7 Rh1 Qf4 Re1 Be5 Rbc8+ Kd6 b8R Nb7 Rc7 Rc4 Rdc8 Nc1 Re2 Rh8 Qa3+ Rbb4 Qb2 Rd4 Rb1 Ra7 Ra8 Rbc4 Nb8 Bb5 Rc5 Rd2 Bd7 Rd8 Bf5 Nd7 R8c7 Nf8 Kg8 Rd7 R7c6+ Ke7 Kh8 Kd8 Be4 Rb4 d6 Rc7 Rb6 Rc6 Rc2 Rcc4 Rc6 Qb6 Rc3 Raa4 Ra7 Rcd4 R3c5 Rbc4 Ra6 Rab4 Ra3 Qa6 Rg3 Rcc2 Rg1 Rcc4 Rh1 g6+
4NbNK/qB2n2n/NQ4P1/1pr2B1b/P7/2NPn2n/N4krn/1R1r2r1 w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 d5 cxd5 g5 fxe5 h6 a4 Be7 Ra3 Nc6 Rf3 Nb8 Rf4 Bf8 Bb2 Ra7 Bd4 Ra8 Bf2 Qd6 Bh4 gxf4 g5 Qe7 g6 Qd8 Bg5 hxg5 Kf2 Ke7 Kf3 c5 Ke4 b5 h4 f5+ Kf3 c4 e4 b3 d6+ Ke6 d3 c3 h5 b2 d7 c2 h6 c1R h7 Qb6 Qc2 Qa7 Qc7 Nf6 Bg2 Nc6 Ne2 Rg1 Nbc3 b1R Qb6 Rbd1 Nc1 Rb8 N1a2 g4+ Ke2 f3+ Ke3 g3 Kf4 f2 Kg5 f1N d8N+ Ke7 e6 Kd6 e7 Ke5 e8N f4 Nb7 f3 Nc5 Kd4 e5 Ke3 e6 f2 e7 Bg4 Bh3 Bh5 Bf5 g2 Na6+ Kf3 Nc1 Ne3 N1a2 Rge1 Rf1 Rc8 Rg1 f1N Rh1 Rg8 h8N g1N Nf7 Kf2 Nh6 Rh8 Ng8 Nh2 Be4 Rh7 Bf5 Rg7 Kh6 Nh3 Rg1 Nh7 Rh1 Re2 Rg1 Rdd2 Rb1 Rd1 Nef6 Rg1 e8B Ne7 Bc6 Rc2 Bd5 Rc5 Ne8 Rcc1 Bb7 Rcd1 Bfc8 Rcg5 Bf5 R5g2 Nef6 Nc8 Ne8 Rc7+ Ng7 Bb4 Ne8 Ne7 Kg7 Bd6 Kh8 Rc5 Qa5 Nc6 Qc7 Bf8 Qb6 Ne7
2qN2bn/1r2PBKr/6R1/1p3PBk/1rNPQ2r/r1N3r1/N2N3q/4n2q w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 f5 g3 a5 Qc2 axb4 Kd1 f3 Qb3 f2 Kc2 Qd6 Kd3 Qc5 Qd1 Qd6 Kc2 Qd8 a4 h5 Ra3 f4 Rd3 f3 Rd4 Bd6 Rg4 Bf4 gxf4 hxg4 Kd3 Kf7 Kd4 Kg6 Ke5 c5 e4 b5 h4 c4 d4 c3 f5+ Kh5 a5 g5 a6 b3 d6 g3 a7 b2 d7 g4 Be3 g2 Nd2 b1R Nb3 c2 Bd2 c1R Bg5 g3 Qc2 Rh6 Ne2 g1R Nc3 g2 Nd2 Na6 Na2 Nc5 Bc4 f1Q Rh3 f2 Rg3 Rb8 a8N Rb4 Nb6 Ra1 Nd5 Ne7 Ndc3 Rb7 Be6 Qg8 d8N Ng6+ Kf6 Nd3 e5 Ne1 Bf7 Be6 Qe4 Qe2 Rg4 f1R Rg3 Bd5 e6 Rf4 e7 Qe8 Kg7 Be6 Nc6 Qc8 Ne5 Qf3 Rg4 Qh3 Nec4 Qh1 Be8 Bg8 Bf7 Rgf1 Rg3 g1Q Rg4 R1f3 Rg3 Qf1 Rg1 Rg3 Rg2 Kg4 h5 Nh8 Rg1 Qh2 Rg2 Re6 h6 Qfh1 h7 Rh6 Rg1 Ng6 h8N Kh5 Be6 Rh4 Nf7 Nh8 Nd8 Re3 Bf4 Rd3 Rg6 Re3 Bg5 Rg3 Nc1 Ra2 Bf7 Ra3 N1a2 Rh7+
b1bQ1B1q/N1b2B1r/1Nn2bB1/RBP3p1/1bK3P1/b2PB3/4b3/r1b2k2 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 h5 bxa4 Bc4 g5 Ba6 Qd6 Bf1 Qg6 hxg6 Bg4 Rh3 Be6 Rh1 Bc8 f4 e5 b4 c5 b5 e3 Ra3 e4 Rb3 Nd7 Rb4 Ne5 fxe5 cxb4 Ke2 Ke7 c4 Ke6 g4 h5 g7 a5 b6 f5 d3 b3 b7 a3 b8B b2 Rh3 a2 Qd2 a1B Rf3 f4 Bg2 h4 Qc3 a4 Qd4 h3 Ba7 h2 Nd2 b1Q Bb8 h1B Qb2 a3 Bc7 a2 Qc2 Qb2 Bd6 Rh7 Bb8 Ne7 Rf2 Nc6 Ngf3 Ba3 Bd6 Qb8 c5 Kd5 e6 Be5 g8B a1B Bf8 Bc7 Bf7 Bf6 Ne5 Kd4 e7 f3+ Kd1 Ra6 Ndc4 e2+ Kd2 Qb2 Rf1 f2 e8B Ra7 Rd1 f1B Nb6 Qa1 Qa2 e1B+ Kc2 e3 Kb3 e2 Be4 Bd2 Beg6 Ke3 Kc4 Kf2 Qb3 Bdb4 Be3+ Kg2 Qa4 e1B Qa5 Bed2 Rb1 Qb2 Ra1 Be2 Ra2 Kf1 Bd7 Nd4 Bb5 Ba8 Nc6 Bc1 Ra1 Ra6 Na7 Nc6 Nd5 Bf4 Qd8 Bc7 Nb6 Be7 Ra2 Qh8 Rc2 Bf6 Rc3 Bab2 Rb3 Ra2 Ra3 Ra1 Ra5 B2a3
1bqnQ2N/7q/R2qN3/1b1nPrpB/2R1K1n1/1PP2RRr/R2p4/1b5k w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 f5 Bd2 h6 gxf5 Qb6 Ba5 Qf6 Bd8 Qb6 Bf6 Qd8 Bg5 hxg5 Kf2 Ke7 Kf3 Kd6 e4 Ke5 h4 a5 b6 d5 f6 a4 b7 d3 c3 d2 h5 d4 f7 a3 b3 g4+ Ke2 g5 Kd3 a2 h6 g3 h7 g2 Rh6 f3 Qc2 Kf4 e5 Kg3 Ke4 d1Q Nd2 f2 Ba6 f1B Ngf3 g1N Bb5 Kg2 Nh2 Nh3 Be8 Bd6 f8R Kh1 Re6 Bb5 Nc4 Nh6 Nf3 Ng4 Bh5 Nc6 b8R Nf4 Rh6 Bd7 Rc8 Bb8 Nd6 Nd5 Nf7 Ra6 Rc7 Qc8 Qb1 Nd8 Rc4 Ra7 Ra6 Rc7 Qc2 Rc6 Qb1 Rf6 Qd3 Rf5 Qe2 Rg8 h8R Be6 Rh6 Rh8 Rf6 Rh6 Nh8 Bg8 R6f7 Bh7 Rfa7 Bg6 Rc1 a1Q Qa2 Qc6 Qa4 Qc8 Rc2 Qa3 Rg2 Qe7 Rg3 Qh7 Ra8 Qa1 R8a7 Qa3 Rff6 Bbe8 Qd7 Qd6 Qf7 Bb5 Qe8 Qhb7 Ra2 Bh7 R7a6 Qbc7 Bg6 Rh3 Bh5 Qa7 Nh4 Bg6 Ng2 Qh7 Nf4 Qdc6 Ra7 Qd6 Rf8 Rf6+ Kf3 Bb1 R7a6 d3 Rf7 Rg6 Ke4 Rh6+ Rf5 Rf6 Ne6 Rf7 Ng6 Rf8 Rff3 Rf5 Nh8 d2+
2n1R1N1/R5PP/B1P3q1/nq1qb2b/2p2r2/QN1pk1K1/1Rb2R2/rn5R w - - 0 1 illegal: No proof kernel
bb2N1qr/R2PR2R/2R5/1RN4n/2P1qb1K/r1k1BQ2/p3pq1P/2n1n3 w - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 f5 exf5 c5 Be2 Nc6 Bf1 Nb8 b4 cxb4 c3 d5 Bc4 d4 Bb3 d3 Bc2 dxc2 d4 Kd7 f4 Kd6 Kf2 Kd5 Kg3 Kc4 b6 e5 f6 g5 f5 a5 b7 b3 f7 e4 f6 a4 d5 e3 d6 e2 d7 b2 Ra2 a3 Qd6 Na6 b8R Bb7 Qe5 Nc5 Nf3 Bh6 f8R Nd3 f7 Nf6 Nd4 Ne1 Be3 c1N Nf5 Bf3 Rb5 Nh5+ Kf2 Ra6 Qf6 Ba8 Re8 Qc8 Ree5 Qg8 f8R Kd3 Nd2 b1Q c4 Kc3 Rc8 Qe4 Nb3 Ra5 Rf1 g3+ Kg1 g2 Kf2 g4 Nc5 Bf4 Nd6 Ra7 Ne8 Ra5 Rc6 Ra6 Rab2 a2 R2b4 Ra3 Ra4 Nf3 Ra7 g1B+ Kg2 g3 Kh3 Ne1 Kh4 g2 Rf3 Bf2+ Rg3 g1Q Re7+ Kc2 Qf5 Kc3 Qg4 Qf1 Qf3 Bg1 Rgg7 Bf2+ Kg4 Qg1+ Kh3 B2g3 Rgf7 Bb8 Rh7 Bgf4 Kh4 Qf2+
R4B1K/2R3PB/bnNQ4/r1bP1n2/2p2Bpn/3BB3/k1q1nr1P/5r1n w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 h5 Nc3 b5 axb5 Be7 Qa4 Ba3 Nd1 Bf8 Ne3 f3 Qf4 gxf4 g5 Bc5 Ng4 hxg4 Ra5 Bd6 Ra1 Bf8 Kf2 Ke7 b4 Kd6 d4 a5 e4 c5 b6 f5 b5 c4 b7 a4 b6 a3 g6 a2 g7 Ne7 Ne2 Ng6 Be3 Nd7 Rb1 a1N b8B+ Qc7 b7 Nb6 Rb5 Ra5 Rc5 Nb3 Ba7 Nc1 b8B Nh4 e5+ Ke7 e6 Kd6 e7 Ba6 e8B Rh6 Bf7 Rf6 Bg6 Rf7 Nc3 Ne2 Na2 Be7 Bh7 Rf6 Ke1 f2+ Kd2 f3 Nb4 f4 Nc6 Rf5 Bg2 Rf8 Ra1 f1R Bd3 f2 Bge4 f3 Bh7 Kd7 d6 Qc8 d5 Qe8 Bf4 Qg6 Ke3 Qf5 Bb1 Qc2 Bd3 Bf6 Ke4 Bd4 Bc7 Rf7 Bd8 Be3 Be7 Rf5 Rb5 Bc5 Bf8 Ba3 Be7 Rg1 Nd8 f1N Ba2 f2 Bd2 Qc1 Bb8 Rf3 Bc2 Bc8 Bab1 Ra8 Rc5 Ne3 Bf8 f1N Ke5 Rf2 Bf5+ Ke8 Kf6 Nfg3 Bd3 Qc2 Kg5 Rc1 Kh6 Rcf1 Kh7 Nh1 Kh8 Bb7 Bh7 Kd7 Rc8 Nef5 Be3 Bb4 Ra5 Ra7 Rac5 Ra5 Bc7 Ba3 Ra8 Ba6 Bb8 Bb4 Rc8 Ke8 Nc6+ Kf7 d7 Kf6 Ne7 Ba3 Bbf4 Bc5 Bh6 Ke5 d8Q Nfg3 Rc7 Ngf5 Bc1 Kd4 Bhf4 Kc3 Bce3 Kb3 Nc6 Kb2 Qd6 Ka2
1nqB1rBQ/B4pKp/3B2NP/n3P3/RbP1r3/3br1b1/2r1n1R1/1kB5 w - - 0 1 legal: proof: f4 d5 a4 e5 b4 exf4 a5 c5 e3 g5 Ra3 b6 Rd3 Bd6 Be2 Bf8 Bf3 g4 Rxd5 gxf3 Rd7 Bb7 Nc3 Ba6 Nd5 Bb7 axb6 Ba6 b5 Bc8 Nb4 cxb4 Kf2 a5 g4 b3 c4 a4 d4 b2 h4 b1N e4 a3 h5 a2 b7 a1B d5 Nc3 d6 Ra3 b6 Ne7 g5 Nec6 g6 Na5 h6 Ne2 g7 Re3 Nh3 Be5 Rg1 Rg8 Rc7 Bf5 d7+ Ke7 Qd4 Kf6 Rg2 Qc8 d8B+ Ke6 Qa1 Bb4 Rc5 Rf8 g8B Bc7 Qh8 Kd6 Re5 Bg6 Re6+ Kc5 Rf6 Kd4 e5 Kc3 Rd6 Kc2 Rd2+ Kb1 Ra2 Bd3 Ra4 Na6 b8B Be1+ Kf1 f2 b7 Bd6 Ba7 Bdb4 b8B Re4 Bd6 Nb8 Rg4 Re3 Kg2 f1R Kh2 f3 Rg2 f2 Nf4 Rg1 Ng6 f1R Nh4 Qc5 Ng6 Bg3+ Kh3 Rf2 Kg4 Qc8+ Kh5 Rf4 Kg5 Rfe4 Kf6 Rd1 Kg7 Rd2 Ra2 Rb2 Ra4 Rc2
1qrQ4/k4n1n/n1pR1R2/2PP1r1B/4b3/rp1Rb2r/4PNR1/1NqR1K2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 e5 f4 exf4 Bb2 axb4 a4 d5 axb5 d4 Bc3 dxc3 d4 Kd7 h4 f5 c5 g5 h6 g4 h7 g3 d5 g2 h5 c6 h6 Kc7 b6+ Kb7 Ra6 b3 Qc2 f3 Rh5 f4 Rf5 Nf6 Qd1 c2 Nh3 c1Q Ra1 g1N Nf2 Na6 Bg2 Nh3 Kf1 Ng5 Qe1 Nf7 Bh1 Kb8 b7 Ka7 b8R Qc7 Rg5 Bf5 Rd8 Be4 Rg2 Qb8 Rd6 Rg8 h8R Nh7 Rf6 Be7 Rd6 Rc8 Rhg8 Bf6 R8g3 Bd4 Rgg6 Be3 Rgf6 Qb2 Qa5 Qc1+ Nd1 f2 Qd8 Qb2 Rg7 Qc2 Bf3 Qc1 Bh5 Bc2 Kg2 f1R Nf2 Rh1 Rg3 Rh3 Rg5 Bd1 Kf1 f3 Rg2 Bc2+ Nd1 Nhg5 h7 f2 h8R Nh7 Rhg8 Be4 R8g3 Bg5 Rd3 Be3 Rg5 Rf3 Kg2 f1R Nf2 Rh1 Rg7 Rhh3 Rgg6 Qd2 Kf1 Rf5 Rg2 Qb2 Ra4 Qc3 Rad4 Qb2 Rd1 Qc1 Rd3 Kb7 Re1 Nc7 Bf3 Ra3 Bh5 Ka7 Red1 Na6
k2Bbb2/NN2q2N/r1pP4/2KnP3/3bq1NR/2bNpRr1/1qP2Q2/1n6 w - - 0 1 illegal: No possible last move
N1Nb3n/brP3pp/3BB1Q1/N3N2q/3q4/N4PP1/nrnk1b1K/1R2b3 w - - 0 1 legal: proof: e4 b5 d4 c5 a4 cxd4 axb5 d3 Bd2 Qc7 Bc1 Qxh2 b4 f5 Ba3 d5 Bc1 d4 Ra6 Bd7 Re6 Bc6 Re5 Bd5 exd5 Nc6 Re6 Nb8 Re4 fxe4 c4 Kd7 c5 e5 g3 a5 c6+ Kd6 f3 e3 b6 a4 c7 e4 b7 Ke5 b5 a3 d6 e2 d7 a2 d8N a1B b6 Nh6 Qc2 Bc5 Qc4 Nc6 b8N Nf7 b7 Qh5 Kf2 e1B+ Kg2 e3 Rh4 e2 Kh2 d2 Qa6 d1N Ba3 d3 Bh3 d2 Rb4 Nd4 Qg6 Nc3 Ndc6+ Kd5 Rb2 Kc4 Na7 d1Q Nbc6 Rhb8 Nc8 Ba7 Bd6 Na2 Na3+ Kc3 Rb1 Bf2 Ne5 e1B Ne2+ Kd2 Nc3 Nc2 Na4 Nh8 Nab6 Bc3 Ng4 Bf6 Ne5 Qg5 Be6 Bd8 Rb5 Qa1 Rb1 Qd4 Na4 Bc5 Nab6 Ra5 Na8 Rb5 Nc6 Bb6 Na5 Ba7 Nab6 Ra8 b8N Rb2 N8d7 Rb8 Na8 R8b7 Ne5 Qh5+
1bR2NRN/3qBb2/Pkr2n2/1n1pPr2/3K4/N2bN1b1/2PQ1bp1/b6N w - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 dxe4 g4 h5 d3 hxg4 d4 c6 f4 e5 d5 e3 d6 e4 Bc4 Qf6 Bd5 Qe5 fxe5 cxd5 Ke2 Kd8 a4 b5 h4 f5 d7 Kc7 d8N g5 h5 g3 h6 f4 h7 f3+ Ke1 g2 a6 b4 a5 g4 a7 f2+ Ke2 f1B+ Ke1 g3 a6 e2 Kd2 e1B+ Ke3 b3 Nc6 b2 Kd4 e3 Rh3 e2 Ra2 Nf6 Rh4 Nbd7 Qd3 Bf2+ Qe3 e1B Nb4 Bd6 Ra5 Rf8 h8N Nc5 Na2 Kb6 Nh3 g1B Rg4 g2 Nac3 Bb8 Nd1 Bd3 Na3 b1Q Rg8 Na4 Rc5 Be6 Rc8 Nc3 Bd2 Bg3 Nhf2 Qb5 Nh1 Qd7 Qf2 Bf7 Bg5 Bd2 Ne3 Bc1 Qe1 Bb2 Qd2 Ba1 Bh4 B1f2 Bg5 Ng4 Be7 Nf6 Re8 Bd6 Rd8 Rc8 a8N+ Kc6 Re8 Bb8 Nc7 Kb6 Ne6 Rc7 Rc8 Rc6 Rg4 Rg8 Nf8 Rg5 Qc1 Rh5 Qd2 Rf5 Rg8 Nb5+
4Q2n/b2B2NR/pNb2K1P/5bq1/2bpPrR1/4qkP1/b3nNN1/3N3n w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 Bd2 e3 Bg2 exd2+ Kf1 c6 Bh3 cxd5 Kg2 d4 Kg3 Ba6 Bf1 Bc8 Kg2 Rh5 Na3 Rh6 Nb1 Rh8 Nf3 Nc6 Kg3 Nb8 Kf4 g3 Ke4 g2 Kd3 Qh4 Ng1 Qe7 Nf3 Qd8 Ke4 g1N Kf4 g5+ Kg3 g4 Kg2 g3 Nh4 a6 Nf3 Nh3 Ng5 Ra7 Kf3 g2 Ke4 Rc7 Nf3 Rb7 Kd3 Ng1 Ke4 Rh3 Kf4 Rg3 fxg3 Rc7 Ng5 Rc5 Kg4 Nh3 Kf3 Ng1+ Kf2 Rd5 Nf3 Rh5 Qe1 Rh3 Qd1 Rh8 c4 Ke7 h4 Ke6 b4 Kf5 c5 Ke4 c6 f5 b6 d5 c7 f4 h5 d3 b5 Be7 b7 Nh6 b6 Bf5 c8N Rf8 Ne1 Nc6 b8N f3 b7 Nb4 Nb6 Qe8 Ra4 Nf7 Nc6 Nh8 b8N Bc5+ Nd4 Qe5 e3 Ne2 Nbc6 Rf6 Qc1 d1B Ne6 d2 Ng7 Bb3 Qc3 Qe8 Ne5 d1B Ng4 Ba2 Rh2 Bd4 Qc6 Bdb3 Qa8 Bc4 Rh3 Qe5 Qe8 Bb5 Rh4 Bc6 Rh1 Bh7 Rh4 Rf4 Rh3 Bf5 Rh2 Nc1 Bb5 Ne2 Rh4 Ba8 Bd7 Bc6 Na3 Bc5 Nac4 Bd4 Nb2 Bc5 N6c4 Bb6 Nd1 Ba7 Nb6 d4 h6 Bfe6 Ra3 Qf5 Rc3 Qh5 Ne5 Bf5 Rg4 Ba4 Rc7 Bc6 Na8 Nc1 Nb6 Nbd3+ Kg1 Nf2 N5d3+ Bfe6 Rb7 Nh1 Rc7 Qg6 Kh2 g1Q+ Kh3 f2 Kh4 f1B Ng2 Kf3 e4 Bf5 Rb7 Qe3 N3f2 Bfc4 Rc7 Qf7 Kg5 Qh5+ Kf6 Ne2 Be6 Bcb3 Re7 Bc4 Bd7 Qh2 Ne6 Qh3 Rh7 Qh5 Ng7 Qg5+
2n4k/r1PrR2p/1n2nr2/P2pn1R1/1R1q1b2/PNN2B1q/KR2R2Q/1n6 w - - 0 1 legal: proof: d4 a5 f4 g5 b4 c5 bxa5 cxd4 f5 g4 f6 exf6 Bh6 f5 Bc1 f4 Be3 b6 Kd2 g3 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Bc5 Qe1 Ba3 Qd1 Bf8 Kc1 f5 Kb2 Kf7 e4 Kg7 c4 f3 a3 d3 c5 d2 e5 f4 c6 b5 g6 b4 g5 b3 e6 Ra7 e7 Na6 e8R Nc5 c7 Ne7 Nh3 Ne6 Qc2 d1R Ra2 Nc8 Rg1 Bd6 Rg4 Rf8 Rh4 Rf6 Be2 f1N Nd2 f2 Ng1 f3 Rb4 Ne3 Re7+ Kg8 g7 f1Q Rc4 f2 Rb4 Bg3 Bf3 Qh3 Ne2 f1N Nc3 d6 Rc4 Nd5 Rb4 Nef4 Re2 Nh2 Re7 Ng4 Re2 Kf7 g8R Ne5 Re8 Kg7 g6 Ndb6 Re7+ Kg8 g7 Ne6 Nc4 Rd5 Nd2 Bf4 Kb1 b2 Nb3 Bc1 Qd2 Rd3 Qf4 Be3 Qh2 Bf4 Ra1 Qd7 Ka2 Rd5 Rg1 b1N Rg5 Qa4 Rb5 Qd4 Rb4 Rc5 Rgg2 d5 Rb2 Rc6 Rge2 Rd6 Re8+ Kf7 g8R Rd8 Rg5 Rd7 Re7+ Kf8 Rh5 Kg8 Rg5+ Kh8
1qR3q1/2BB2rB/r4q1Q/B7/2rN1PNK/p1q3p1/nP3Pbn/2n1kB2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 g4 b5 axb5 Bh6 e3 gxh4 Ra6 Bf4 exf4 f5 g5 Kf8 Ra3 Kf7 Rg3 Ke8 Rg4 fxg4 c4 Kf7 b6 Kg6 c5 Kf5 b7 Ke4 c6 e5 c7 h5 g6 d5 g7 a5 Bd2 a4 Qc1 h3 Bb4 g3 Bd2 h2 Qc5 a3 Ke2 h4 Nh3 d3+ Ke1 Kf3 Qa7 d4 Bc1 d2+ Kd1 e4 Rg1 h1R Bc4 e3 Bf7 e2+ Kc2 d1N Kd3 e1Q Qb6 Qf6 Bg6 Nd7 b8B Rh7 Bd2 Nc3 Qb5 Na2 Rf1 Bb7 c8B Ra6 Bd6 Nh6 g8B Ng4 Qg5 Nh2 Qh6 Rg7 Bc7 Bc6 Bda5 Nc5+ Kc2 Ke2 Bc4+ Nd3 Ng5 h3 Bh7 Be4 Ne6 Bg2 Bd7 Qb4 Rg1 Qb8 Rc1 Rd1 Nd2 Ke1 Ng5 Qg8 Nf7 Qb8 Ne5 Qg8 Rb1 Ndc1 Ng4 Qb8 Ra1 Qg8 Bf1 d3+ Kb1 Qc3 Nb3 Rd2 Nd4 Rc2 Be8 d2 Bd7 Qc5 Qh4 Rc4 Qh6 Nc3+ Kc2 Na2+ Bc3 Qa7 Rb1 Qab8 Ra1 Rca4 B3a5 Rc4+ Kb1 Rc2 Bd8 Ba8 Nb3 Nd3 Ne5 Rc8 Nd4 Be4 Bdb6 Bg2 Bb4 Ng4 B4a5 h2 Bd8 h1Q Bdb6 Qh4 Bd8 Bc6 Kc2+ Ndc1 Rb1 Qf6 Ra1 Nb4+ Kc3 d1Q Rb1 Nb3 Rc1 Nd2 Rc2 Na2+ Kd3 Nh2 Ke3 Bg2 Bdb6 Rc7 Rc3 Rb7 Rc8 Qc1 Bc7 Rb4 Qh4 Nhf3 Qh6 Nb3+ Ke4 Qcc4 Ke3 Nbc1 Ke4 Qd6 Kf5 Qc3 Ng4 Rc4 Nh2 Ng5 Kg4 Nf3+ Kh5 Qde6 Ng4 Nh2 Kh4 Qf6+
1KR1B3/1r1bq1k1/1R6/3P2nb/PPNnpR1B/4bn2/R3bqp1/R2q3Q w - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 exf5 h5 c3 hxg4 Bb2 b3 Ba3 Nc6 Bc1 Nb8 Ne2 b5 Bh3 d5 Na3 b4 Ng1 b2 Nc4 dxc4 Bf1 b3 Bh3 Ra4 Bf1 Rb4 cxb4 Qd4 Rb1 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 b1B Kf4 c5 Ke5 g5 h4 g3 f4 c3 a4 c4 d4 g2 f6 c2 d5 c3 h5 b2 h6 g4 f5 g3 h7 Bh6 Be3 c1Q Bf4 c2 Ra2 Bd7 Bd3 Qd2 Qc1 Qf2 Nf3 g1N Bg5 g2 Bh4 Be3 Bb5 Nh6 Nd2 e6 Kd6 e5 Qd1 c1Q Nc4 Qe7+ Kc7 Nc6 Kb7 Rd8 h8R Nf3 Qe1 Ra8 Rb8 Bd3 Kc7 b1B Rb6 Kg8 f7+ Kg7 f8R Be2 Rc8 Rb8 Qg1 Qd1 f6+ Kh7 f7 Ncd4 f8R Kg7 Rf4 Nf7 Qh2 Bg6 Re1 e4 Qh1 Bh5 Rg1 Qc2 Rga1 N7g5 Bc6 Qd1 Bb5 Ra8 Bc6 Ra7+ Kb8 Be6 Be8 Bd7 Nb2 Rc7 Nc4 Rb7+
1Br1Rrq1/3r2n1/4n1qR/1q1P1k1p/Nr3N2/3p1n1P/3bQPK1/2N1N1N1 w - - 0 1 legal: proof: d4 b5 g4 c5 b4 cxd4 a4 f5 axb5 fxg4 b6 a6 b7 Qc7 Ra5 Qb6 Ra1 Qd8 e4 d5 b5 Be6 Bc4 d3 b6 d4 Bb5+ axb5 Na3 Bf7 Nb1 Bd5 exd5 Ra6 Qf3 Ra7 Qd1 Ra8 Kf1 Kf7 c4 Kg6 c5 e5 h3 h5 c6 d2 c7 e4 c8N g3 Nf3 b4 Nd6 g2+ Kg1 b3 Ne8 e3 Qf1 d1Q Ra7 d3 Ng5 e2 Ra2 e1R Ra6 b2 Nc7 Re7 Nc3 b1R Bb2 Qa4 Ne2 Qb5 Nc1 Nh6 Qe2 Nd7 b8N Nf5 Nc6 Rc8 b7 Nc5 b8N Ne6 Be5 Rb4 Nd4 Rd7 Ndf3 Be7 Bh2 Qg8 Ne1 Kf6 Ngf3 g5 Rc6 g4 Nba6 Ng7 Nc5 Kf5 Na4 Bg5 Bd6 Be3 Kh2 g1N Kg2 g3 Rb6 Ng5 Ne6 Bd2 Nf4 N5e6 Bb8 Rf8 Ne5 Nf3 Rf1 Nfg5 N5f3 Rc8 Ng1 Nf3 Ra6 Rh6 Nc2 Rf6 Re1 Rff8 Qf1 Ned4 Re8 Nde6 Ne1 Nfd4 Kh1 g2+ Kh2 Nf3+ Kg3 Neg5 Rh6 N5e6 Qe2 Nh4 Ngf3 g1Q+ Neg2 Qf1 Nge1 Qh1 Ng1 Qf3+ Kh2 Qg4 Kh1 Qg6 Kh2 Nf3+ Kh1 Kg5 Kg2 Kf5+
2nK4/nP1B2NP/3b1Nb1/1QN5/4n2n/p2PN1qp/3b1N2/knnRB2r w - - 0 1 illegal: No proof kernel
3qbQ2/B1Rq3p/1Bb2B1b/Br1N1Kb1/2Pr1pP1/2R1b3/5P1n/1k1b2B1 w - - 0 1 legal: proof: h4 b5 b4 g5 a4 gxh4 axb5 c6 b6 Nf6 e3 Ng8 b7 Bg7 b5 Bf6 b6 Bg7 Bb5 Bf8 c4 cxb5 e4 d5 Nc3 d4 Ra2 dxc3 Ra5 Bd7 Ra1 Bc8 d4 Bf5 d5 Nc6 d6 Bc8 Ra4 Nb4 Ra1 Nd5 exd5 Bh3 Bd2 Be6 Bc1 Bc8 Ke2 Kd7 Kd3 f5 b8B e5 b7 a5 g3 b4 Ra4 c2 Bb2 c1B Ne2 e4+ Kd4 b3 Ke5 h3 Nf4 h2 Bc7 e3 b8B e2 Qd3 e1Q+ Ne2 f4 Qe4 Qd2 Ra2 a4 Ra3 Bh6 Qd3 Ra5 Rf1 h1B Qd4 Rb5 Ba5 Nf6 Ra2 a3 Rd1 Ng4+ Kf5 Nh2 g4 Bb7 Bbc3 b2 Qf6 b1B+ Rc2 a2 Qf8 a1B Bf6 Bf3 Ba7 Bc6 Nc3 Qd4 Bh4 Be3 Bg3 Qg7 Rd4 Bd1 Re4 Qge7 Re6 Bg5 Rf6 Rg8 Rf7 Rg6 B5b6 Re6 Ba5 Re4 Rg7 Rd4 Rf7 Kc8 d7+ Kb7 Rg7 Ka6 Rf7 Rb7 d6 Rb5+ Nd5 Bb2 B5b6 Ba3 Bc5 Ka5 Bcb6+ Ka4 Ba5 Nf1 Bh2 Kb3 Bg1 Nh2 Rg7 Bb2 B5b6 Ka2 Ba5 Qb8 d8B Qec7 Bf6 Qbd8 d7 Qb7 Ke6 Qbc7 Rc1 Bg6 Rc3 Be8 Kf5 Kb1 Rf7 Ba3 B5b6 Be7 Rg7 Bh6 Rf7 Qa8 d8B Qd6 Bdc7 Qb7 Ba5 Qd8 Bcb6 Qbc7 Bg7 Beg5 Bf6 Qcd6 Rc7 Q6d7+
6n1/1PPbnb1B/1P1NBb1b/1p1rp3/b6B/3R3b/k1BqBK2/4QR1q w - - 0 1 illegal: No proof kernel
1B1n4/1PPb1r1p/5B1P/qR3N2/2bR1Rr1/pp1r2RK/3b1Q2/k2r2nR w - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 f5 e6 c6 a4 c5 axb5 cxb4 e4 g6 f4 Qa5 e5 Qd8 Bd3 Nh6 Nc3 Ng8 Be4 fxe4 f5 g5 Nce2 Qc7 Nf4 gxf4 Ba3 Qa5 Bc1 Qd8 Kf1 Ke7 h4 a5 g4 d5 Kg2 e3 c4 d4 c5 e2 h5 e1R b6 b3 h6 f3+ Kh3 f2 g5 f1R g6 d3 b7 a4 g7 a3 c6 d2 Ne2 Ra4 Ng3 Bd7 Qf3 d1B Qf2 Be2 Bf4 Qa5 Rd1 Nf6 g8R Bc4 Rd4 Ne4 Rg4 Rd1 f6+ Ke8 f7+ Ke7 Rg5 Nc3 Rg4 Ne2 Nf5+ Kd8 e7+ Kc7 e8R Kb6 e6 Kb5 e7 Kb4 Be5 Kc3 Rgf4 Kb2 Bf6 Ka1 c7 Bg7 Rg8 Nc6 e8R Nd8 f8B Rd3+ Re3 Rfd1 Bc5 Rb4 Re8 Rf8 Ba7 Rf7 Re5 Bh8 Bb8 Ng1+ Kg2 Ra4 Rg3 Bg7 Rb5 Bf8 Re3 Bb4 Ref3 Bd2 Rg3 Rb4 Re5 Rb6 Rb5 Re6 Kh2 Re8 Kg2 Rg8 Kh2 Rg4 Kg2 Nf3 Kh3 Ng1+
2r2bR1/3R1Pp1/p1Bnb1q1/3QqPk1/1RrR4/r1R1P3/bKpr4/3NB3 w - - 0 1 legal: proof: b4 e5 a4 b5 c4 bxa4 d4 exd4 g4 h5 c5 f6 b5 Nc6 Nc3 Na5 Ne4 Nc4 Ng5 Nb6 cxb6 Qe7 N5f3 Qd8 Ne5 f5 gxf5 Rh7 Ng4 hxg4 Ra3 Rh4 Ra1 Rh8 Kd2 Ke7 Kc2 Kf6 h4 c5 f4 d5 b7 a3 b8R g3 e3 d3+ Kb1 a6 h5 c4 b6 d4 b7 d2 h6 g2 h7 a2+ Kb2 d3 Qb3 d1R Rh4 d2 Nh3 g1Q Bg2 Qe7 Nf2 Be6 Rd8 Rc8 b8R Nh6 Bc6 Qg6 Rb4 Nf7 Rd7 Nd6 Rb1 Rg8 h8R a1R Qd3 Rc7 Qd5 Ra3 Rb3 Qee8 Rc3 Qb8+ Kc2 Qb5 Rb4 Qc5 Kb1 Qd4 Kc2 Qe5 Bb2 Rc8 Ba1 Rc1+ Kb2 d1B Rg4 Bb3 Nd1 Be7 Rgh4 Rgd8 Rg8 Ba2 Rh2 Bf8 Rd2 Ra8 Rd4 Rb1+ Kc2 Rac8 Bb2 Ra1 Bc1 Rb1 Bd2 Rbb3 Be1 Ra4 Rcd3 c3 Kc1 c2 Rc3 Rba3 Kb2 Re8 Rb8 Rc4 Rb4 Re7 Rdb7 Kf7 f6 Rd7 Rc7 Qgg5 Rcb7 Kg6 f7 Kf5 Rc7 Qg6 Ra7 Kf6 f5 Kg5 Rab7 Rdd8 Rd7 Qef6 Rg4+ Kh6 Qc5 Ne8 Re7 Rd2 Rd4 Kg5 Red7 Qe5 Qd5 Nd6
1nN2krN/1P4R1/bPQ1K3/p2N4/rp3r2/2Pnbq1p/BB5p/NN2q3 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 e5 d4 exd4 h4 g5 Ra3 gxh4 Rb3 Nh6 axb5 Ng8 b6 Nc6 b5 Nb8 Rb4 cxb4 Ke2 a5 Kd3 h5 Ke4 d5+ Ke5 h3 f4 h4 g4 d3 c3 d2 f6 d4 g5 d3 f7+ Ke7 g6 h2 g7 h3 b7 Rh7 f5 Nf6 g8N+ Kd7 b6 Bh6 f8N+ Ke8 Ne2 Na6 Nd7 Ng4+ Ke6 Rf7 f6 Rf8 Nf4 Ne5 Bb2 Nb8 Nd5 Be3 Qa4 d1Q Rg1 d2 Qc6 Nd3 Nge7 Qe1 Rg7 d1R Bg2 Qc7 Be4 Qcg3 f7+ Kd8 Bh7 Qf3 Bg6 Rg8 f8N Rc1 Be4 Ke8 Nfg6 Rf8 Nh8 Rf4 Bh7 Rc2 Bg8 Rf2 Ba1 Ra2 Bb2 Ra4 Kd6 Bg1 Nc5+ Bd7 Nc8 Kf8 Nb3 Be3 Na1 Be6 Nde7 Bg4 Ba2 Bh5 Nd5 Be8 Qc7 Bb5 Qc6 Ba6 Ke6 Nd7 Nce7 Rd8 Nc8 Nb8 Rg2 Rd7 Rg5 Rg7 Rg2 Rg8 Rg1 Qd2 Rg7 Qe1
1b2N1b1/1B2P1p1/rPN1k3/3r1p1N/2Q2pPb/qp3N1r/1R1N1R2/q3nK2 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 d5 c4 e5 cxd5 b5 f4 exf4 Bb2 h4 Bd4 Nd7 Bf2 Ndf6 Bg3 hxg3 Nh3 Ne4 Ng1 Nd6 Nh3 axb4 Ng1 b3 Bh3 b4 Bf1 Nb5 axb5 Bb7 Ra2 Ba6 Ra1 Bc8 e4 Ke7 d4 f6 h4 g2 e5 b2 h5 b3 d6+ Kd7 d5 Nh6 b6 Be7 e6+ Ke8 d7+ Kf8 d6 Nf7 h6 Ra6 h7 Ne5 Nd2 b1R Ngf3 g1B Qc1 Bh2 Bg2 Nd3+ Kf1 Ne1 Qc4 Rd1 Rb1 Qe8 d8N Qa4 d7 Qa3 Nc6 Bb7 Ncd4 Bd5 Ne2 Bd8 Rg1 Ke7 Rb2 Bg3 Rh1 c5 Rh5 f5 Rh2 Bh4 Ng3 Bc7 d8N Bb8 Nh5 Kd6 e7 Bg8 Nc6 Kd7 Ne4 Rd5 Ned2 Kd6 Bh1 Ke6 Rf2 Qa1 Qb5 c4 Bg2 c3 Qc4 c2 Bh1 Bf7 Bg2 Rc8 h8N Bg8 Nf7 c1Q Nd6 Qa3 Bh1 Qca1 Bg2 Rf8 Ne8 Rf6 Bh1 Rh6 Ng3 Ra4 Ng1 Ra6 Na7 Bg5 Be4 Rh2 Nh5 Rh3 Ngf3 Bh4 Nc8 Kd7 Na7 Rc5 Bb7 Rd5 Nc6 Ke6
Rr4b1/4R3/1B4P1/1k4r1/RnbQ1Pr1/1R3Pp1/qKp1pR1p/bN2bN2 w - - 0 1 illegal: No possible last move
8/B4p2/kPB1n1pP/r6q/2qQ1rq1/Kp1p1NR1/NP1Nn3/b4NNq w - - 0 1 legal: proof: f4 b5 h4 e5 d4 exf4 g4 c5 a3 cxd4 h5 b4 h6 b3 Ra2 Bb4+ axb4 Bb7 Ra6 Be4 Rf6 Bg6 Rb6 Bh5 Rg6 hxg6 gxh5 Qe7 Rh2 Qf6 Rh1 Qd8 Kd2 a5 c4 d5 e4 Kd7 e5 Kc8 b5 Kb7 h7 a4 e6 a3 c5 a2 e7 a1B e8N f3 Nc3 d3 Nf6 f2 Bg2 f1Q Ng4 Qc7 Ne3 Nf6 Rh3 Nc6 Na2 d4 Rg3 Nd5 h6 Ra5 b6 Re8 h8N Nd8 c6+ Ka6 Be4 g5 Ng6 g4 Nh4 g6 Nhf3 Nc3 Bd5 Qd7 c7 Re4 c8N Ne2 Bc6 Ne6 Nd6 Rf4 Ndc4 Qc7 Nc3 Qg2 Na2 Qh1 Nf1 Qc8 Ke1 Qh5 Bd2 Qc7 Bb4 Qh1 Bd6 Qc8 Bb8 d2+ Kf2 Qh5 Ba7 d3 Ke3 Qc7 Qe1 d1Q Qc3 Qc1+ Ncd2 Qb7 Qd4 Qc4 Kf2 Qd7 Ke1 Qdd5 Kd1 Qh1 Ke1 Qdh5 Ne4 Q1h2 Kd2 Nc5 Nh3 Ne6 Rg2 g3 Rg1 Qcb5 Rg2 Ng1 Kc3 Qh1 Ned2 Qbd5 Kb4 Ne2 Ba4 Qc4+ Ka3 Rd5 Rg1 g2 Bc6 Qf5 Nf2 Qhh5 Nh3 Qfg4 Rh1 g1Q Rh2 Rdf5 Rg2 Re5 Rg3 Qh1 Nhg1 Ra5+
1n6/P2KQq2/1ppNp1N1/2N3q1/1P1n1R2/2Rr3k/B1Pp3n/1nN1bN1r w - - 0 1 legal: proof: e4 e5 d4 Nc6 dxe5 Nb8 e6 Ke7 Na3 Kf6 e7 Ke5 Nb1 Ke6 Bd3 Kd6 e5+ Kd5 Bf1+ Kc6 e8Q g5 h4 gxh4 e6 a5 e7 a4 Qg4 Kd6 Qe6+ fxe6 Qf7 Ke5 Qh5+ Kf6 Qd1 Kf7 f4 Ke8 b3 d6 f5 Kd7 f6 a3 f7 Kc6 Bb2 axb2 Qe2 Bd7 Qd1 Be8 fxe8N Bh6 Qh5 Bg7 Qd1 Bf8 Kd2 Kd5 Kc3+ Ke4 Kc4 Kf5 Kb5 h5 a4 h3 g3 h4 a5 d5 a6 d4 a7 d3 Nf6 h2 e8N h3 Nd2 b1N Nfe4 b6 Nc5 Qg5 Ra3 Nf6 Ne2 Kg4 Nd6 Na6 Kc6 Rd8 b4 Bg7 Rg1 h1N Rc3 h2 Qe1 Rh4 Nc1 Bh6 Rg2 Kh3 g4 Ng3 Qd1 Ne2 Rf2+ Kg3 Bg2 h1Q Bd5 Kh3 Rf4 Qf3 Nf1 Qf2 Ba2 Nd4+ Kb7 Rd7 Kc8 c6 Qe1 Qf3 Qe4 d2 Qh7 Bf8 Qg7 Be7 Qf8 Qe5 g5 Ng4 g6 Qg5 g7 Nh2 g8N Rh6 N5d3 Qfh5 Qd8 Qf7 Qe8 Bf6 Ne7 Be5 Ng6 Rh4 Rf5 Bg3 Rf4 Be1 Nc5+ Ndf3 Nde4 Rd3 Qe7 Nd4 Nd6 Rg4 Nd7 Rg1 Nc5 Rh1 Kd7 Nb8+
r7/1n2N1Qn/NN1pq1KR/1rb2n2/P2Pk3/3rPr1q/1N2B2R/r4qNb w - - 0 1 legal: proof: f4 a5 g4 c5 b4 cxb4 f5 h5 gxh5 b3 Ba3 b2 Bb4 axb4 f6 exf6 Nf3 f5 Ng1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 g5 a4 b5 h4 g4 c4 b3 d4 f3 c5 f2 h6 g3 h5 g2 e3 b4 h7 Qb6 h6 Nc6 Ne2 g1N Nbc3 b1R Ra3 b2 Ng3 b3 Qc1 Ne2 Qd2 Ra1 Qe1 b1R Rh2 b2 Ra2 Nd8 c6 Bc5 c7 Nb7 Nb5 Rd1 Qa5 b1R Qa7 d6 Rh3 Be6 c8N Rd3 Nc7 Qb3 Nb6 Kg5 Na6 f5+ Kf3 f4 Ke4 f3 Rc2 Ng1 Ne2 Ne7 Rh4 Rhc8 h8N Rf8 h7 Nh3 Rh6 Nf5 Ng1 Bg8 Ng6 Qe6+ Ne5 Rb5 Be2 f1Q h8N f2 Ng6 Kf6 Ra2 Ng5+ Kf4 Qh3 Nec4 Nh7 Rc2 Bf7 Nb2 Be8 Rd2 Bc6 Rc2 Bh1 Rd2 Qf1 Kg4 Qg2+ Kh5 f1Q Rc2 Nh4 Rd2 Kf5 Ne7+ Ke4 Rc2 Qgh3 Rd2 Qa2 Rc2 Nf5+ Kg6 Qd5 Nec8 Nd8 Qg7 Nb7 Bg4 Ng3 Rh2 Rf5 Bd1 Rf3 Ne7 Nf5 Be2 Qe6+
Rrq2r2/2KP1bb1/1p6/3RB1b1/qrRb2R1/1NQ1P1q1/nP1b4/1RN2kn1 w - - 0 1 illegal: No proof kernel
3b1r2/1bBBqk2/4pNbr/2nPB1Q1/n1R4r/B3P3/1R1Pr1Br/1Kr4r w - - 0 1 illegal: No possible last move, all moves rejected
1q1R3B/kBBn4/1nB2NR1/1r3rb1/5P1Q/2rB1pbb/rP2nP2/1Kq2q2 w - - 0 1 illegal: No possible last move, all moves rejected
1r1R2Q1/p2q1nK1/1bBnRb2/3bbkb1/7P/PRRn1P2/N2q4/r2RBn2 w - - 0 1 illegal: No possible last move, all moves rejected
1n3r2/kB1qb1B1/n1Br2rB/3b2rN/P2p4/QK1Pqbbq/2P5/1B1R1R2 w - - 0 1 legal: proof: f4 a5 b4 axb4 g4 c5 g5 e5 fxe5 b3 Nc3 h6 Nd5 hxg5 Nb4 cxb4 Bh3 g4 Bg2 Bd6 Bf1 Bf8 a4 g5 h4 f5 e4 b5 e6 d5 d3 g3 Kd2 g2 e5 d4 e7 Kd7 e8B+ Kc7 e6 Kb7 h5 f4 h6 g4 h7 b2 e7 b1Q Bg6 f3 e8B f2 Bc6+ Ka7 Ra2 b3 Rh2 b2 Rh3 b4 Bf5 g3 Bcd7 b3 Bg4 Na6 Qe2 Ne7 Nf3 g1B Nh4 g2 Qe5 Rg8 h8B Rg6 Bd1 Nc6 Qb5 Bb7 Rf3 Ncb8 Bf5 Be4 Be6 Qd7 Bg7 Be7 Nf5 Bh2 Qb4 g1Q Ra1 Bg3 Bg2 f1B Qa3 Be2 Rf1 B2f3 Be2 Qf2 Kd1 Qa2 Bch6 b1R+ Kd2 Re1 Rd1 b2 Bf7 Qa1 Ba2 b1R Bh1 Rb5 Bb1 Qa2 Kc1 Qae6 Bg2 Rd5 Kb2 Qe3 Kb3 Rg5 Bf6 Rg6 Ng7 Qh3 Nh5 Rd6 Bfg7 Rg5 Rf2 Rg1 Rff1 Nc6 Bh1 Rf8 Bg2 Ncb8 Bh1 Bg2 Bg4 Rgg6 Be6 Bgf3 Bd5 Bgh4 Bb7 R1g5 Bc6 Bg3 Bg2 Qh2 Bh3 Qh1 Be6 Qh3 Bed5 Qdf5 Bb7 Qd7 Bdc6 Bd5+
2Bbq1bn/2P2nrQ/1n5N/1n2RKbp/6NB/2BB2B1/rbP3kP/n5n1 w - - 0 1 legal: proof: b4 c5 d4 f5 dxc5 b5 a4 bxa4 e4 g6 f4 fxe4 f5 g5 Ra3 Bg7 Rf3 Bf8 Rf4 gxf4 Ke2 Kf7 g4 Kf6 b5 Ke5 g5 h5 b6 d5 b7 a5 g6 d4 f6 f3+ Kd2 Kf4 f7 e5 c6 d3 g7 a3 c7 f2 Nf3 a2 Ba3 a1N Bc1 a4 Nh4 a3 Rg1 e3+ Kc3 e4 Rg6 a2 Rd6 d2 Kd4 e2 Bg2 f1N Bh1 e1B Nf5 e3 Kd3 e2 Bc6 Ng3 Bb5 Kf3 Be8 Rh7 Nh6 Ne7 g8B Nd7 b8B Ng6 Na3 Nb6 Ba4 Kg2 Nc4 Ne4 Bd7 Nh8 Re6 Qe8 Ne5 Rg7 Bh7 Ng5 Ba7 Be7 f8B Bd8 Neg4 Ngf7 Ke4 Beh4 Re5 e1N Bb4 Nf3 Kf5 Ng1 Bc3 Bhg5 Be6 Bb7 Bc8 Bd5 Qe1 d1N Bf4 Bb3 Bg3 Bd5 Qe3 Bc4 Qd3 Bb3 Bd4 Nc3 Bg6 Nb5 Bc3 Bc4 Bh7 Nb3 Qd7 a1B Qe7 Bb2 Bg6 Nd5 Baf2 Nb6 Bh4 Na1 Bfg3 Ra5 Qf6 Nd7 Ke4 Nb6 Qf5 Ra2 Bh7 Bge7 Bg6 Ng5+ Kf4 Bg8 Qd7 Rh7 Bd3 Bf6 Qf5 Rg7 Qh7 Ngf7 Kf5 Bg5
K4nk1/1r4Pb/Rp1N4/2p2N2/PP1b3q/Q1N1b3/nnq1n1Rn/N1N3Br w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 cxd5 g5 Ba6 gxh4 Bc4 a4 Bb3 axb3 Ke2 Kf7 Ke3 e5 g4 h5 a4 c5 f4 b2 d4 h3 d6 h2 g5 h4 d7 h3 d5 Ra7 d6 Bh6 f5 Nf6 Qd3 Kg8 Nc3 b1N Nge2 b6 Ra2 Qf8 d8N Rb7 Ne6 Nbd7 Ng7 Qf7 Rg1 Nf8 d7 h1Q d8N Qg6 Nf7 h2 Nd6 Be6 Rg3 Bb3 Rd2 Bc2 Rg2 Qe1 Bb2 Qh4 Nc1 h1N Rdf2 Ng3 Rf1 N6h7 f6 Ne2 Rf4 Qf5 g6 Ng5 Rfg4 Nf3+ Rf4 Qfh3 Ngf5 Qh2 g7 Bg5 Nd5 Rh7 Qa3 Nbc3 Ba1 Na2 Bd4 Q2h3 Nc3 Nh2+ Kd2 Qf3 Bg1 Qf1 Ke3 Qd1 Nd4 Bb1 Ndb3 Qc2 Na1 Rh5 Rg3 Bh6 f7+ Kh7 Kf2 e3+ Kg2 e4 Rf5 Ne6 f8N+ Kg8 Ng6 Nf8 Rf7 Bf4 Rd7 Be5 Rd8 Bd4 Ra8 Rf5 Qb2 Rd7 Rg4 Ng3+ N3e2 Qd3 Nc3 e2 Bf2 e1B Ra5 e3 Qa3 e2 Ra6 Bd2 Be3 Rf1 Ne7+ Kh7 Rg5 Rh1 Bg1 B2e3 Rg6 Qd1 Rg4 Bg6 Nef5 Kg8 Rg5 Bh7 Rg6 Nhf1 Kf3 Qc2 Rg5 Bf2 Rg4 e1N+ Kf4 Nd3+ Kf3 Ne2 Ke4 Qd2 Kd5 Qc2 Kc6 Nh2 Rg6 Bfe3 Rg2 Rd8 Kb7 Nb2 Ka7 Rd7+ Ka8 Rb7
1NK1kq2/1p2rN2/q5n1/P1RpN2q/nP1q4/qr2Nn1P/1b2bB2/RQN5 w - - 0 1 legal: proof: e4 a5 b4 h5 d4 f5 exf5 c5 g4 hxg4 Be2 cxd4 Bc4 a4 Bb3 axb3 Ke2 g5 Kd3 e5 Ke4 g3 Kd5 g4 f4 g2 a4 g3 c4 d3 c5 d2 h3 e4 f6 b2 f5 e3 c6 e2 c7 e1Q Qb3 d1Q+ Nd2 b1Q Ne2 Ne7+ Kd6 Qa2 Qb1 g1N a5 g2 Bb2 Na6 Bd4 Qa3 Nc4 Rh7 Ne3 Nf3 Nc1 g1Q Rh2 Qg6 Rc2 Bg7 Rc5 Qh5 f7+ Kf8 Nd5 Ng6 Bf2 Qde2 Ne3 Q1f1 Be1 Bb2 Bf2 Kg7 f8N Kf7 f6 Ke8 Bg1 Re7 Bf2 Nf4 Ng6 Qg1 Rd5 Nc5 Ne5 Na4 Rb5 Ng6 f7+ Kf8 Rc5 Qa6+ Nc6 Kg7 f8N Kf7 Qa2+ Ke8 Qb1 Qaf1 Ne5 Qa6+ Kd5 d6 Nd7 Qgf1 Nb8 Bg4 c8N Qg1 Nb6 Qgf1 Nbc4 Qg1 Nd7 Rc8 Nb8 Qf1 Nf5 Rcc7 Nf7 Re3 Nce5 Rb3 Ke6 d5+ Nbc6 Qdh4 Kd6 Re7 Ne3 Re6+ Kc7 Re7+ Nd7 Qf6 Nce5 Qfc4 Kc8 Qd4 Nd8 Qf8 Ndf7 Ne1 Kc7 Be2 Kc8 Nf3 Nb8 Qdh4 N3c4 Qe4 Ne3 Qd4
1n1B4/2bR1rPb/4rp2/P1q4R/QrR1bPr1/1Rn1k1K1/3Np3/qN2R2q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 d5 Rh3 dxe4 Be2 b3 Rh1 c6 Bb5 cxb5 Ke2 b4 Kf1 Bd7 Ke1 Bc8 d4 Kd7 f4 Ke6 Kf2 Kd5 g4 e5 a4 h5 c3 b5 a5 e3+ Kg2 Ke4 g6 b2 g5 h4 c4 f6 g7 h3+ Kh2 e2 c5 e1R d5 b3 g6 b4 c6 Qc7 d6 Ne7 g8R Bf5 g7 Nd5 d7 Rh4 d8R Nc3 Bd2 Bh7 Rh8 Bd6 Be3 Ra7 Na3 b1B Rde8 b2 Bd2 b3 Kg3 h2 Be3 Qc8 Bd4 Rf7 Rd8 Bc7 Bb6 Re2 Rd4+ Ke3 Nf3 e4 Re1 h1Q Nd2 Bd3 Ra2 b1Q Rb2 Qa1 Nab1 Qf8 Rd5+ Qc5 Rhd8 Bc2 Rh5 Bd3 Rd7 Bc2 Ra2 b2 Ra3 Bd3 Qa4 Bc2 Rb3 Bd3 Na3 b1R Rb5 Rb4 Nab1 Be5 Bd8 Bc7 Re7 Kd4 Rb7 e3 Rb6 Bde4 Rb5 Bb6 c7 Kd3 c8R Bc7 Nf3 Reb2 Nfd2 e2 Rb6 Ke3 Rb7 Rb6 Rd7 Re6 Rb3 Bb6 Ra3 Rb4 Rc6 Bc7 Rb3 Qf8 Rc4 Qe7 Rh6 Qc5 Rh5 Rg4+
QK3b2/3PP3/N1q1knb1/1rRp4/3Rpn2/1r1R2Nb/b1BPR1q1/nRr5 w - - 0 1 illegal: No possible last move, all moves rejected
7n/1N1np1Pb/QB1q2rk/1p2q1N1/b3B1n1/N4K1P/1P1bN3/Nrr1bR2 w - - 0 1 illegal: No proof kernel
B2N4/n1qp1n1p/r4QK1/n2r2BP/k1n1r1rB/n2Pb3/B4PBb/4RR2 w - - 1 2 illegal: Other
kn4BB/p1K3b1/4r2N/B6R/QB1bbnP1/Pr1n2n1/b1P1n1p1/1R3qB1 w - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 e4 d5 exd5 g5 Nc3 gxf4 Ne4 h4 Ng3 hxg3 Ke2 Kd7 Kf3 Kc7 Ke4 e5 d4 f5+ Kd3 b5 h4 Kb7 a3 g2 d6 b3 d5 f3 h5 b2 h6 b1N d7 f2 d6 f4 Ke4 b4 Kd5 e4 h7 b3 Be2 f1N Nh3 b2 Ra2 e3 Ke6 f3 Kd5 f2 Rh2 Ne7+ Ke6 Nc3 Nf4 b1B Qd4 Ng6 Qe5 Ne4 Qd4 Nfg3 Nh5 f1N Nf6 Bg7 Rh5 Nf2 Bd2 Qf8 Ra1 Ba2+ Bc4 e2 Ng8 e1B Nh6 Nd3 Bb4 Bc3 Rb1 Ne2 Qf4 Rg8 h8B Bcd4 Kd5 Qf6 d8B Re8 d7 Nfg3 Bda5 Re6 d8B Qf7 Qe4 Qf1 Bg5 Bd7 Be3 Bb5 Bb3 Bd7 Bg1 Bc6+ Kc4 Bd5+ Kb5 Ngf4 Bc4 Ra6 Qe8 Be4 Bg8 Re6 Qg6 Na6 Qe8 Rc8 Qc6+ Kb8 Qc4 Ka8 Qb3 Rc3 Qa4 Re8 Rd5 Rb3 Kc6 Nb8+ Kc7 Re6 Rb5 Nb2 Rh5 Nbd3
3BQ1q1/rr6/k1bq2NR/1b3P1n/1r1pb3/K1PPpBB1/1r1B1n2/3BbR2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Nc3 g5 Na2 gxh4 axb5 Na6 b6 Nb8 b5 Bg7 Nb4 cxb4 Ba3 Bh6 Bc1 Bf8 g4 a5 f4 d5 d3 Kd7 Kd2 e5 g5 h5 g6 b3 Kc3 h3 Kb2 h4 b7 Kc7 f5 Kb6 g7 e3 Bd2 d4 Be2 a4 Rh2 e4 Rc1 a3+ Kb1 a2+ Kb2 a1R Qf1 Na6 b8B Ra2+ Kb1 b2 Bd6 Rh7 Bg4 e2 Qf4 e1Q Rd1 e3 Qf2 Bd7 B2b4 Nc5 Ne2 Ne4 Be5 R8a7 Qf3 Qg1 Rf1 Nf2 Nf4 Nf6 g8B Nh5 Bd2 Bb4 Bb3 Bc3 Rh1 h2 Qe4 h3 Bf3 Qgg8 Bf6 Qdf8 Bg5 Qd6 Ng6 Bc6 Bh4 Rhb7 Qe8 Ka5 b6 Ka6 Bd8 Bb5 Bc7 Ra4 Bd8 Rb4 Ka2 b1R Ka3 Rb2 Ba4 Rd7 b7 Re7 b8B Reb7 Rhg1 h1B Rg4 h2 Rh4 Bg2 Rh3 h1B Bb3 Ng3 Rh6 Nh5 Ba4 Qb6 Bg3 Qd6 Bc1 Be1 c3 Qb8 Bad1 Qd6 Bg4 Bgc6 Bd2 Bhd5 Bgf3 Be4
2B1rn2/2n1N1p1/1P2bq2/1Bn1R1nr/3p4/1QBP1r2/BNB2P2/q1krb2K w - - 0 1 illegal: No proof kernel
1nrk4/2rbrq1r/Pp3n2/2p4n/1PPQb3/B1KBq2R/2R1BB2/B2n2N1 w - - 1 2 legal: proof: e4 d5 b4 dxe4 g4 a5 g5 a4 g6 fxg6 Na3 g5 Qe2 g4 Qf3 Nd7 Qd1 Nb8 h4 g5 Nc4 g3 Na5 g4 Nb3 axb3 Bc4 Bh6 Bf1 Bg5 hxg5 Kf8 Bg2 Kf7 Bf1 Ke8 f4 e5 c4 c5 a4 h5 d4 b6 Kd2 h4 f5 g2 a5 b2 a6 b1B d5 e3+ Kc3 e2 d6 e1R g6 h3 f6 h2 g7 e4 Bb2 g3 Nh3 g1Q Qe2 e3 Nf2 g2 Qg4 e2 Qd4 Qd7 f7+ Kd8 f8B Qf7 d7 Be4 Ra2 Rh7 Nh3 Nf6 g8B Qe3+ Qd3 g1R Bg7 Ra7 Ba3 Rc7 Rc2 Rg5 Bh8 Re5 Ng1 Re7 Bg7 Rd1 Bh8 e1N Be2 Rd2 Kb2 Rd1 Qd4 Nd3+ Kc3 Nb2+ Bd3 Qf8 Be6 Qf7 Bg4 Rd2 Bf3 Rg2 Be2 Rg8 Nh3 Ne8 Be5 Nf6 Bg3 Rgh8 Bf2 Rf8 Rb1 h1N Ng1 Ng3 Re1 Re5 Rd1 Ngh5 Rdd2 Ke7 d8B+ Ke8 Be7 Bd7 Bd6 Re7 Be5 Rg8 Rd1 Bf3 Qe4 Ng7 Kb3 Rf8 Nh3 Ngh5 Rh1 Nd1 Ba1 Nb2 Qd4 Be4 Kc3 Re5 Bg1 Ke7 Rh2 Rfc8 Bf2 Kd8 Ng1 Re7 Rh3 Nd1+
1Kr1B1k1/2B1R1P1/1pNb3b/Pnp3BB/1QP1pq2/N2nB3/r1q1n3/6rb w - - 0 1 illegal: No possible last move, all moves rejected
bN1r3R/p1r1n3/bB3p2/qqpPbn2/2B2r1B/1Q1P3R/PK4k1/2Bq2B1 w - - 0 1 illegal: No proof kernel
1Q1rB1BR/nR5p/rB5P/2P4B/1rp1q2B/k1P3K1/npbNr3/r1nb4 w - - 1 2 legal: proof: e4 a5 d4 g5 f4 c5 e5 Bg7 Nc3 c4 b4 axb4 e6 fxe6 f5 e5 Nd5 e4 Nf4 gxf4 Be3 Be5 Bd2 Bd6 Bc1 Bc5 dxc5 Ra6 Kd2 Ra5 Ke1 Ra8 Kf2 d5 h4 Kd7 a4 Kc6 g4 b5 a5 e5 h5 e3+ Kg2 e2 c3 e1R a6 b3 h6 b4 g5 Kb5 a7 b2 f6 b1R f7 d4 f8B b3 g6 e4 g7 e3 Qe2 d3 Rh4 f3+ Kh2 d2 Qg2 d1B Qf2 e2 Bg5 Na6 Bg2 Bf5 Bh1 Qe7 Rg4 Nb4 Qg3 f2 Bf3 f1R Bh4 Na2 Qb8+ Ka4 Kg3 Qe4 Bfe7 Ka3 Bd8 Ne7 g8B Nc8 Bb6 Rf2 Rg7 Bg6 Be6 Rd8 Bg8 Ref1 Re7 e1N Rb7 Re2 Bh5 Nd3 Nf3 Nc1 Nd2 Rf6 Qe5 Rb8 a8B b2 Qf4 Na7 Qc7 Rbc8 Qb8 Bf5 Rg7 Rc7 Bc6 Rb7 Bce8 Rfd6 Bc7 Rb4 Bb6 Bc2 Rb7 Bg4 Bc7 Ra6 Ba5 Nd3 Bb6 Rh1 Rf1 Bf3 Rf2 Ra1 Rf1 Bg4 Rf8 Ndc1 Be6 Rh2 Rh8 Bgd1 Bg8 Re2
4BQ1B/1P1p3p/2pBk1PK/5nnn/1rPq4/2rN3B/n3bR1B/1nN2rb1 w - - 0 1 legal: proof: b4 e5 a4 b5 axb5 g5 h4 gxh4 e4 f6 d4 exd4 e5 f5 Ra3 Ne7 Re3 Ng8 Re4 fxe4 Ke2 Kf7 g4 a5 f4 c6 g5 e3 Kf3 a4 Kg4 a3 Kh5 d3 c3 e2 f5 e1N f6 d2 b6 a2 b5 a1R g6+ Ke6 f7 h3 b7 h2 b6 Ne7 Na3 Nf3 Bb2 Na6 b8B Nb4 Nc2 Nf5 Ne2 Qf6 Ne1 Na2 Bh3 Bc5 f8B Ra3 Rf1 h1N Nd3 Ng5 Nec1 Ba6 Bfd6 Bg1 Qf3 d1N Rf2 Rd8 Bbc7 Rb8 Qf4 Rb1 b7 Rf8 Ba1 Rb4 Qf3 Nb2 Qf4 Nc4 Bb2 Nd2 Ba1 Kd5 e6 Qd4 e7 Ke6 e8B Nb1 Qf3 Rf7 Bh2 Bc4 Bcd6 Rf8 Ne5 Bd3 c4 Be2 Ned3 Rc3 Bf1 Ne7 Kh6 Ng3 Bg2 Nh5 Qf4 Rg8 Qf8 Rg7 Bb2 Rf7 Bh3+ Qg4 Rf5 Rcb3 Bd4 Rc3 Bh8 Qd4 Rf4+ Rf5 Rg4 Rf1 Rf4+ Bg4 Rf5 Be2 Rf2+ Nf5+
N2QqB1R/N2r4/3r3n/Pn2R1p1/2p4R/2PkrPb1/b1R2nbp/3K2nR w - - 0 1 legal: proof: g4 a5 h4 e5 b4 axb4 d4 Qg5 dxe5 Qd8 h5 Nc6 g5 Nb8 Bh3 g6 Bf5 gxh5 g6 h4 g7 Nc6 Bd3 Nb8 Bg6 fxg6 a4 Kf7 e4 Ke6 c3 h5 f3 b5 a5 d5 Qc2 c5 Qd3 h3 Qe3 b3 Bd2 b2 Ne2 d4 Rh2 d3 Ng1 h4 Rh1 b4 Qe2 g5 Ra4 b3 Rd4 h2 Qe3 h3 Na3 b1N Ra4 b2 Nc4 Rh6 Rb4 Na3 Qd4 b1B Bf4 d2+ Kd1 Qe8 Ne2 Bd6 Nb6 Nb5 Rb2 Ba2 Rc2 Nc6 Qd3 Ra7 Na8 Re7 Qd4 Bb8 Qd8 Ncd4 Be3 Rh7 Bf2 Nh6 g8R Rd7 Rh8 Rhe7 Rh7 Ndf5 Bd4 Ng3 Bg1 c4 Bc5 Rd6 Rh8 Red7 Ba3 Rd3 Bf8 Re3 Rf1 h1N Nd4+ Kf7 e6+ Kg6 e5 h2 e7 Ne2 e6 Ng1 Rh7 Bg3 Nc6 Kf5 Na7 Kf4 Rh8 Re4 Rh7 Ke3 Re1+ Kd3 Rf1 Qg6 e8R Re3 e7 Rd6 Re1 Bh3 Rf1 Bg2 Re1 Ng8 Rh4 Qe6 Bg7 Nh6 Rh8 Qf7 e8R Rd7 Ree4 Qe8 Re5 Ne2 Nb6 Re4 Na8 Ke3 Rc1 Nf2+ Kc2 d1R Bf8 R1d6 Rh1 Ng1 Rd1 Rf7 Rd2 Rh7 Kc1 Rhd7 Re2+ Kd3 Rc2 Nfh3 Kd1 Re2 Rc1 Re3 Rc2 Nf2+
6B1/pqk1B1np/1bp4N/N2q2n1/P1BQ2r1/Rn2Pb2/1K3Pnn/B3r2B w - - 0 1 legal: proof: a4 e5 c4 g5 b4 b5 h4 gxh4 e3 bxc4 Ra2 f5 d4 f4 dxe5 f3 Re2 fxe2 Kd2 Be7 Qb3 Bd6 Qd1 Bf8 Kc3 e1N g4 d5 b5 Kd7 b6 h3 b7 d4+ Kb2 c3+ Ka1 d3 g5 h2 g6 c2 g7 d2 Bg2 Na6 b8B Nh6 g8B Ng4 Qe2 d1N Bb2 c1N Bb3 Nc5 Qc4 Ne6 Na3 Rg8 Ne2 Nc3 Nd4 Bb7 Nf5 Ng7 Nh6 Bc5 e6+ Kd6 e7 Bb6 e8B Bf3 Bf7 Ne4 Bc3 Ng5 Kb2 Qe7 Rf1 h1Q Qd4+ Kc6 Bbc4 Nb3 Bb4 Nh2 Bc5 Qe4 Be7 Qd5 Rg1 Rd8 Bg8 Kb7 Rf1 c6 Bg3 Rac8 Bh4 Kc7 Bf6 Qg1 Bh1 Ng2 Ra1 Qe1 Be7 Qb4 Bg3+ Rd6 Be5 Rb8 Ba6 Rf8 Nc4 Rf4 Na5 Rg4 Bc4 Qbb5 Ra3 Qa6 Qf4 Qb7 Qf6 Qf7 Bc3 Rd1 Qd4 Rf1 Ka2 Rc1 Ba1 Re1 Kb2 Qd5
1r1n4/p1qkB3/2N1bp1r/1n1N1Pb1/P4bPB/rb2p1K1/Rq3B2/3B1QB1 w - - 0 2 legal: proof: e4 d5 exd5 g5 c4 b5 h3 bxc4 h4 gxh4 b4 e5 f4 c5 Kf2 h5 g4 f6 d4 c3 a4 c2 f5 h3 b5 h4 b6 c4 b7 c3 d6 h2 d5 h3 Qf3 e4 Bd2 c1B Bg2 c2 Ra2 Rh6 Ne2 Qc7 Rf1 h1R Be1 h2 Nd4 Bg5 Nc6 c1Q Nc3 Qb2+ Kg3 Be6 Bf2 Na6 b8B Ne7 Qf4 Kd7 Bf3 e3 Bd1 Qd2 Qc4 Qd4 Bg1 Qdb6 Rf4 Qb2 Bf2 Re1 Qf1 h1B Bg1 Be4 Bf2 Bc2 Bg1 Kc8 Bf2 Bb3 d7+ Kb7 d8B Kc8 d6 Kd7 Nd5 Re2 Nd4 Nc6 Be7 Nd8 Nc6 Rd2 Bg1 Rd3 Bf2 Qb6 Bc7 Rb8 Bg1 Qc5 Ba5 Qc4 Be1 Nc7 Bef2 Nb5 Nd4 Qc7 Nc6 Ke8 d7+ Kf7 Bb4 Bd6 Bbe1 Be5 Be2 Nb7 d8B Ke8 Be7 Nd8 Bd1 Kd7 Ba5 Bc2 Bae1 Ra3 Kf3 Bb3 Bh4 Qd4 Bef2 Qb2 Kg3 Bexf4+
nNqN2b1/1r1N3k/4BbRn/2Kb2p1/2pn1r1p/P1P2bq1/3Q1N1P/3B3N w - - 1 2 legal: proof: g4 a5 d4 e5 dxe5 f6 b4 axb4 a3 Ra6 g5 Be7 g6 Bf8 Ra2 Ra5 Rb2 Ra8 f4 Nc6 f5 Ke7 Bg5 Nb8 Rb3 Ra5 Rf3 fxg5 f6+ Ke6 f7 Ke7 Rf5 Ra8 Rf6 gxf6 Kd2 b5 Ke3 h5 Kd4 c5+ Kd5 h4 e4 f5 c3 b3 g7 b4 e6 Kf6 e5+ Kg6 e7 c4 e8N f4 e6 b2 e7 f3 Qd4 f2 Qe5 b3 Kc5 d5 Nd6 d4 e8B d3 Qd4 d2 Qe3 d1B Bc6 Rh7 Bd5 Be7 Qg3 Bb7 Nd2 b1N Nh3 b2 Qe5 Bf6 Qe3 Nh6 g8N Bf3 Be2 f1Q Bd1 Qg2 Nf2 Qg3 Nf1 Nd2 Be6 Bbd5 Nb7 b1B f8N+ Kg7 Ne7 Qc8+ Nc6 Na6+ Kb5 Bd3 Nd7 Nb3 Ncb8 Nd4+ Kb6 Nc7 Qd2 Ra7 Nd8 Rb7+ Kc5 Kg6 Rg1 Rf7 Rg2 Kh7 Rg1 Qf4 Ng3 Rf8 Ngh1 Qg3 Rf1 Na8+ Ndc6 Bg6 Re1 Bf7 Rf1 Nc7 Nd8 Bg8 Re1 Bh8 Re5 Rf4 Rf5 Bg7 Rf6 Bh8 Rg6 Bg7 Ba4 Bf6 Bd1 Na8+
N5B1/3r1q1p/p1rp3P/Pn1N3R/k3Bnn1/nb2PN2/2Nq1Qr1/3Kb2N w - - 1 2 legal: proof: d4 c5 b4 f5 bxc5 e5 a4 exd4 e3 f4 Ra2 f3 Rb2 Kf7 Qd3 Ke7 Qd1 Ke8 Kd2 g5 Rb3 Nh6 Rd3 Qb6 Ke1 Qd8 Rd2 Ng8 Re2 fxe2 Kd2 Be7 Nc3 Bd6 Nb1 Bf8 f4 Qc7 f5 Bd6 Bb2 Be5 Bc3 Qd8 Ba5 Bg7 Bc7 Bf8 Bf4 gxf4 c4 e1N g4 b5 h4 b4 f6 d3 c6 a6 c7 b3 h5 b2 c5 f3 f7+ Ke7 g5 f2 h6 Nf6 g6 Ng2 a5 Nc6 g7 Nf4 g8B Na7 c6 Kd6 Nc3 Kc5 Qf3 Kb4 Bg2 f1Q Ne4 Nb5 Nf2 Ng4 Rh5 Ka4 Nh1 Be7 f8N Bh4 Qe2 Be1+ Kd1 b1N Be4 d2 Ne6 N1a3 Qf2 Rb8 Nd4 Rb6 Ngf3 Qc4 Bd3 Qf7 Be4 Bb7 c8N Ba8 c7 Bd5 Bg6 Rc6 Nc2 Bb3 Be4 Qff8 Bgd5 Rg8 Ne7 Qf7 c8N Ng6 Ke2 d1R Be6 Rdd6 Nd5 Nf4+ Kd1 Nf6 B4f5 Rg2 Be4 Ng4 Ne7 Nd3 Nc7 Nf4+ Ned5 Qh8 Qf1 Qc3 Qf2 Qb4 Na8 Qc3 Kc1 Qd2+ Kb2 Qf8 Bg8 Qf7 Qf1 Rc7 Qe2 Rdc6 Qf2 Qd4+ Kc1 d6 Rh2 Qc3 Rh5 Rd7 Kd1 Qd2+
4bqn1/B1RPRpP1/R2Kr3/1knpR3/8/2pPQ1q1/1N1r4/NRbn1n1b w - - 0 1 illegal: No possible last move, all moves rejected
4NnnB/3B1pBp/1n1q4/1b2nn1P/1QpPBrr1/K3BP1R/q7/k2N3n w - - 0 1 illegal: No proof kernel
N4qqr/BrN1pb2/2kp3r/1pPN4/2R1P3/qn1q2N1/BP2Kn2/1N3Qr1 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 cxd4 g5 g6 a5 f6 Nc3 fxg5 Nb1 g4 Na3 h5 Bg2 h4 Bf1 Bg7 Nb1 Be5 Ra3 Bc7 Rg3 Bb6 axb6 hxg3 c4 a5 f4 a4 h4 d6 e4 Kd7 b7 g5 h5 g2 f5 d3 c5 a3 h6 g3 f6 a2 f7 a1Q f8N+ Kc6 h7 d2+ Ke2 g4 Qe1 Nf6 Qd1 Qa3 Ne6 Qf8 Nc7 Ra7 Na8 Be6 Qe1 d1R Bd2 Bf7 Ba5 Rd5 Bd8 Rh5 Bb6 Rh6 Rh2 Ra6 Ba7 Rb6 Nf3 g1R Nh4 g2 Nf5 g3 Qd1 Rg8 h8N Ng4 Ng6 Nf2 Nf4 Rgh8 Qd3 Nd7 Qd1 Ne5 Nd5 Nc4 Qe1 Na5 b8N+ Kb7 Qd1 Nb3 Na6 Kc6 N6c7 Rb7 Qe1 Rh1 Qd1 g1Q Qd3 g2 Ng3 Ng4 Qd1 Qd4 Qc1 g1Q Bh3 Ne3 Qf1 Nd1 Be6 Qc3 Rf2 Qd4 Rf3 Nf2 Rc3 Qg2 Rc1 Rg1 Rc4 Qd3+ Ke1 Rh4 Nf4 Qc8 Nh1 Qdg3 Rc1 Na5 Ba2 Qgd3 Rc4 Nb3 Nfd5 Qgg8 Ng3 Qce8 Ndc3 Qef8 N3d5 Qd4 Ke2 R4h6 Ra4 Qc3 Rc4 Qd3+
2RBRN2/qb2Nkp1/2P3r1/NQ2b1pn/1p2q2b/2N2Pr1/1N1p1qP1/4n1K1 w - - 0 1 illegal: No possible last move, all moves rejected
2n2b1R/1Bp1RK1p/3b1n1P/Pkp1p1P1/3R4/Rr3N2/1q1rR2Q/b1r2bN1 w - - 0 1 illegal: No proof kernel
1R2q2n/1pp1Pk1N/3P2N1/2NpKn2/1P3n2/Rq4b1/2bNpQ2/rr1n1NB1 w - - 0 1 illegal: No proof kernel
3QNNb1/2P3bp/k1bpbp2/6rb/n1q1NP2/p2N1B1P/q2N1BK1/1n2R3 w - - 0 1 legal: proof: b4 a5 a4 b5 d4 c5 d5 cxb4 d6 b3 Ra2 b4 Bh6 Ra7 Bc1 exd6 Ra3 d5 Ra1 d4 f4 g5 c3 g4 Ra2 Na6 Rd2 Nb8 Rd3 Rb7 Rf3 Rb5 axb5 gxf3 Kf2 f6 g4 b2 e4 b3 b6 d3 g5 d2 g6 a4 g7 a3 c4 Ne7 g8N Qc7 b7 Kd8 e5 Nd5 c5 Nc3 h3 Bg7 c6 Na6 b8N Nc5 e6 N5a4 Ne7 Rg8 Kg3 f2 Bg2 f1B Nd5 Bc4 Ne2 Bb7 e7+ Kc8 Nb4 Be6 e8N d6 Qc2 d1B Nd7 Ba8 Nd2 b1B Bf3 b2 Nf8 Bba2 Nd3 b1Q Re1 Bad5 Qb2 Qa2 Kg2 Nb1 Ng3 Qf7 c7 Bac6 Qe5 Kb7 Ne4 Ka6 Bb2 Qc4 Bd4 Qa2 Bf2 Bc4 Bh5 Bdg4 Qb2 B4d5 Qb8 Bc4 Bg6 Bh5 Qd8 Bed5 Bf5 Bh8+ Bg3 Rg5 Bg4 Bg7 Bf3 Bb3 Nef2 Bdc4 Nfe4 Qd5 Nb2 Qc5 Nd3 Bg8 Nb2 Bbe6 Nd3 Rd5 Bh4 Qcc4 Bf2 Rg5+
1KRn1n2/b1P1pNr1/N2QP2p/1p6/3pr3/2N2R2/2rqpNrP/nB2Nk2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 g4 b6 f4 f6 e5 Kf7 e6+ Ke8 f5 Ba6 Bf4 Bb7 Be5 fxe5 b4 Be4 f6 Bf5 gxf5 a5 Bg2 axb4 Bh3 Ra6 Bf1 Ra8 Ke2 d5 Kf3 g5 a4 h6 c4 b3 c5 b2 a5 g4+ Kg3 d3 c6 d2 a6 b5 a7 e4 Kf4 g3 Ke5 e3 c7 g2 Nf3 g1R Nc3 b1N Be2 Rh7 Ne4 Bg7 Nf2 Kf8 Ne1 Na3 Bd3 e2 Bb1 Rg2 Rf1 Nc2 Ra3 Na1 Rf3 Bh8 Rg1 Rhg7 f7 Nf6 Kd4 Qe8 Kc5 Nh7 Kb6 Qd8 Kb7 Nc6 Rf1 Qd6 Rg1 Rd8 a8N Rd7 Nb6 Nd8+ Kb8 Qf4 Qc1 d1R Qc6 Rd2 Na4 Rc2 Nc3 Qd2 Rf1 Rd6 Qd7 Ra6 Qd6 Ra4 Rg1 Re4 Rf1 Rg8 Rg1 Kg7 f8N Kf6 Ng6 Kg5 f6 Rg7 f7 Kh5 f8N Kg5 Ne5 Kh4 Nfd7 Nf8 Rf1 Qd1 Nh1 Qd2 Nf7 Kg4 Nc5 Kh4 Rf6 Kh3 R1f2 R7g3 R6f5 Bd4 Na6 Rg7 R5f4 Bb6 Rf6 d4 Rg6 Rh7 Rg8 Rhg7 Rf3+ R2g3 Nd3 Kg2 Nhf2 Kf1 Ne1 Rg2 Ka8 Nh7 Re8 Nf8 Kb8 Nb7 Rc8 Nd8 Nh8 Bc5 Nf7 Ba7+
1k2n2K/b1N4r/2Rp1pp1/N1rn1rP1/Np1b1pBN/2Q3rb/1P3P2/R4N2 w - - 1 3 legal: proof: d4 b5 g4 h5 a4 c5 Bg5 cxd4 Nd2 e5 Bh6 h4 Bf4 exf4 Nb1 b4 Qd3 Qa5 Qg3 Qb5 axb5 hxg3 Kd2 Kd8 Kd3 Kc7 Ke4 a5 Kf5 g2 c4 a4 e4 d3 h4 d2 h5 d1R h6 a3 e5 a2 e6 d6 c5 Re1 b6+ Kb7 h7 Ra5 Nf3 g1B Be2 Rc1 Nh4 Ra3 Nd2 Nd7 c6+ Kb8 e7 Bh2 e8N Rg3 b7 Ngf6 Nc7 Ne8 Nf1 g6+ Kg5 Be7+ Kh6 Rc5 Rg1 Rf8 h8Q Nb6 Kh7 Bd8 Qc3 Nd5 Rc1 a1R Bd1 Ka7 b8N Raa5 Bf3 Rg8 Bd1 Rg7+ Kh8 Bf6 Na8 Rab5 c7 Bd4 Nc6+ Kb7 Rc2 Bf5 c8N Rh7+ Kg8 Be3 Na5+ Kb8 Ncb6 Rc4 Qa3 Rg2 Nd2 Ndc7 Na4 Ba7 Nhf3 Bg3 Be2 Be6 Ra1 Bh4 Nf1 Bf6 g5 Bfd4 Nh4 Bh3 Bg4 Rf5 Qe3 Nd5 Nc7 f6 Qe1 Rf7 Kh8 Rc6 Rc4 Rg3 Qc3 Rh7+ Kg8 Rb6 Rc5 Rb5 Rc6 Rf7 Kh8 Rc5 Na8 Rd7 Nc7 Rh7+
n1QBN2B/kB3b1p/4n1P1/pB1K4/Prpb1nBP/4pb1p/3R2r1/2n4R w - - 0 1 illegal: No possible last move
1k3b1b/npRpR3/R5NR/Q2Pnp1r/2nK4/nP3P1b/Rr1Bq3/r2Nq3 w - - 0 1 illegal: Other
2R2r2/1pKpQ3/4qRB1/1P1R1p2/b1p2Nr1/2Pq1Pk1/n4bq1/R1n1RqBr w - - 0 1 illegal: Other
R2NK3/n1rN1R1P/QN2P1N1/3n1n2/1qP3n1/3R3b/1qB1k3/r3qq1r w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 d4 cxd4 f4 exf4 a6 b4 a7 Bc5 a5 Bb6 axb6 Nf6 b7 Ng8 Be3 Qa5 Bf2 Qc7 Bh4 Qa5 Bd8 Qxd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 Kd6 f5 e4+ f3 c4 g5 h4 b3 e5 b2 h6 d3 h7 d2 h5 f4 h6 Qb6+ Kd5 Nc6 Kd6 Nf6 b8R Nd5 Qa4 d1R Nh3 f2 Rh2 Kf3 Qc2 g4 Rg2 g3 Bd3 f1Q Ra5 Qb4+ Rc5 Rg8 h8N Rg7 Re2 g2 h7 g1Q Nc3 b1Q Qa4 Q1b2 Bc2 Qgf2 Qa2 Q2e1 Rf2+ Ke3 Ng6 f3 Rd2 f2 Na4 Ra1 Rd1 Ke2 Ng5 Rf7 Rb7 Rb8 a8N Na7 Rc7 Rb7 Qa3 Rf5 Ne6 Rh5 N4b6 Rh1 Rc6 Rc7 Rd3 Nc3 Ke7 d5+ Kf8 d4 Qa6 Nd5 Nd8 Bd7 Rd6 Bh3 Ra3 d3 e6 d2 Ke8 d1N Nd7 N1e3 Nab6 Ng4 Ra2 Ne7 Rd3 Nd5 Rb5 Qg1 Rc5 f1N Rca5 Ng3 Rc5 Ne7 Rf5 Nd5 Rf7 Qgf1 Qb5 Nc8 Ra8 Nf5 Qa6 Na7
N5r1/bn2r1k1/pP3RNR/1q2NPq1/1QRrq1P1/4B1qK/2p1b3/6N1 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 d4 a6 b6 Nc6 Bd3 Na7 bxa7 exd3 Kf1 Kf7 b4 h5 f4 e5 b5 c5 d6 e4 d7 d2 g3 c4 Kg2 e3 d5 h3+ Kh2 c3 d6 e2 Ra2 e1Q Qa4 d1R Ba3 h4 Bc1 c2 Nd2 Kg7 Qa5 Rh7 Ra3 Nh6 Ra4 Qg5 d8R Nf5 d7 Nd6 Qb4 Nb7 Ndf3 Bc5 Be3 Rd4 Rf8 Qb1 d8N Bg4 Ne5 Be2 g4 Rb8 a8N Ba7 b6 Qb3 Qd6 Qb5 Ndf7 Re8 f5 Rh8 Bd2 Rg8 Nh8 Re7 Rf6 Rc7 Ngf3 Re7 Kg1 h2+ Kg2 h3+ Kg3 Qb2 Rc4 Qb3 Be3 Qb5 Rf1 h1Q Qb4 h2 Kh3 Qg1 Nhg6 Qf2 Ng1 Qe1 Rf2 h1Q+ Rh2 Qc3 Kg3 Qe4 Rh6 Qe1+ Kh3 Qg3+
2QN4/1N2qqp1/1n2pk2/qP1B1Pr1/nR5q/3P4/KN4nn/2R1rRR1 w - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 b5 a3 f5 Bd3 e6 Bf1 fxe4 Nc3 a5 Nb1 Bc5 a4 Bb6 axb5 a4 Ra2 Ba5 Ra3 Na6 Ra1 Nb8 bxa5 h6 f4 e3 g4 Kf7 f5 Na6 Bb2 Qf8 Bf6 Nb8 Bg5 hxg5 Bh3 Bb7 Bf1 Be4 f6 Bf5 gxf5 Qd8 Ke2 Kf8 Ke1 Ke8 h4 Kf7 d3 c5 a6 a3 a7 a2 h5 c3 h6 g4 h7 e2 Qc1 c4 Nh3 c2 Kd2 e1N Kc3 g3 Kb2 c3+ Ka3 g2 Be2 g1N Bf1 Ng2 Nd2 Na6 Nb3 Nc5 Na5 Na4 Nb7 Nf3 Nf2 Ne7 Nd1 Nd5 Rg1 Nh2 Nb2 Ndb6 Be2 Qe8 Bf3 Qe7+ Kb3 Rac8 a8R Rc7 Rb1 a1Q Bd5 Rc4 Rc8 Rg4 Rc4 Rg5 Rb4 Rc8 Rf1 Rc4 Rg1 Re4 Rf1 Re1 h8N+ Kg8 f7+ Kf8 Qd1 c1Q Qc2 Qf4 Rg1 Qh4 Rd1 Qc1 Ka2 Qd2 Qc1 c2 Rf1 Qc7 Rg1 Ke7 f8R Qdc3 Rc8 Kf6 Nf7 Qe7 Nfd8 Qf7 Rc7 Qd2 Rcc4 Qc3 Rf4 Qc5 Rff1 Qce7 Qe3 c1Q Qc5 Qd2 Qc8 Qc3 Rc1 Qcc7 Nd6 Qa7 N6b7 Qa5
Q2Rq3/3b1Rr1/2B1b3/r2rnnPk/PP3RNr/r1K1NNR1/1n6/1qb5 w - - 0 1 legal: proof: c4 g5 h4 gxh4 e4 f5 exf5 d5 cxd5 a5 b3 b5 Be2 a4 Bf1 a3 Bb2 axb2 a4 Bg7 Qc2 Bh6 Qc5 Bf8 Qa3 b4 Bd3 bxa3 Ba6 Qd6 Bf1 Qd8 f4 Kf7 g4 h5 d4 e5 Kd2 c5 g5 c4 d6 h3 d5 h2 d7 a2 f6 Kg6 f7 e4 d6 c3+ Kc2 h4 f5+ Kh5 f6 e3 Ne2 h3 Ng1 e2 Bg2 e1R Be4 Nh6 Bd5 Rd1 Na3 Rh7 Bb7 Rd5 Nc4 Nc6 Re1 a1R Nf3 Ra3 Ne3 Raa5 Rhg1 h1B Rg3 h2 Rf1 Ne5 Bc6 Qe8 d8N Nf5 d7 Rg7 b4 Bd6 f8R Bc5 Nd1 Be3 Nf7 Bc1 d8R Be6 Nh6 Bg2 f7 h1R Ne3 Rh4 Nhg4 Bh3 Rg8 Bd7 f8Q Be6 Qc5 Bd7 Rf8 Be6 Rf7 Bd7 Qd4 b1Q+ Kd1 c2+ Ke1 Bb2+ Kd2 c1N Rf2 Ncd3 Qa7 Be6 Qa8 Bc1+ Kd1 Qa1 Kc2 Nb2 Rf1 Ra2 Kc3 Qb1 Rd1 Ra1 Rd4 Bd7 Rf4 Ra2 Nd2 Ra3+ Nb3 Ra2 Nd4 Nh6 Nf2 Bhe6 Nfg4 Nf5 Nf3 Ra3#
7q/Nb1r3B/1B2bPRN/Q2nbb2/1B1r1r1n/P1N4b/B3P3/1K1b1n1k w - - 0 1 legal: proof: g4 a5 c4 d5 cxd5 e5 b4 axb4 h4 g6 d4 g5 dxe5 f6 a3 gxh4 g5 f5 Ra2 Qd7 Rd2 Qe7 Rd4 Qd8 Rg4 fxg4 Kd2 Kf7 Kc2 Kg6 f4 Kf5 d6 b5 g6 c5 d7 h5 e6 g3 e7 Kg4 e8B h3 g7 b3+ Kb2 b4 f5 h4 f6 c4 Qd3 g2 Qc3 h2 Qe1 h3 Bg6 c3+ Ka1 c2 Qd2 Kg3 Kb2 Ra7 Bf5 Na6 Qd1 Nc7 Qd2 Bd6 Qd1 Rh4 Nd2 Nd5 Bh7 Rf4 Be4 Ne3 Nb1 Ne7 g8N Be5+ Nc3 N7d5 Bd2 c1R Nf3 g1N Nd4 Nf3 Ncb5 Nh4 Nc7 Rc4 Ka1 b2+ Ka2 b1B+ Ka1 b3 Ba5 Bc2 Qd2 Bd1 Nb5 b2+ Kb1 Rb4 Bfg2 Nf1 Rg1 h1B Bg6 Kh2 Nc6 Rbd4 Nh6 Qh8 d8B Be6 Bdb6 Rd7 B2e4 Bf3 Nc3 Bfg4 Bb4 Bgf5 Rg2+ Kh1 Bh7 h2 Na7 Bh3 Beg6 Qg8 Bf7 Qh8 Ka2 b1B+ Ka1 Bbf5 Rg6 Bfg4 Kb1 Kg2 Qc2 h1B Qa4 Kh2 Qa5 Bgf5+ Ka1 Nde3 Kb2 Bb7 Kc1 Kh1 Kb2 Bfg4 Ka1 Bef5 Ba2 Nd5 Kb2 Be6 Kb1 Bgf5+
1N4nn/PnP2N1K/QbR2rBn/1b3q2/1n3nP1/5R2/1N4kb/1q1R2qN w - - 0 1 legal: proof: d4 a5 e4 c5 b4 axb4 e5 f6 exf6 cxd4 Nf3 g6 Ng1 g5 f4 b5 h4 Bh6 f5 Bf8 Bf4 gxf4 g4 Nh6 Ne2 Rg8 Ng1 Rg5 hxg5 Ng8 Bh3 Bg7 Bg2 Bf8 Bf1 Qa5 Ne2 Na6 Bg2 Kf7 Rh5 Bh6 Rh3 Bb7 Bh1 Rd8 Bf3 Bc8 Na3 Nb8 Bb7 Re8 Bf3 Qd8 Bg2 Bg7 Rh4 Nh6 Nb1 Rh8 Rh1 Ke8 Bf1 Ng8 Ng1 Bf8 Ke2 Kf7 Kd3 h5 Ke4 d5+ Ke5 h4 c4 h3 a4 b3 c5 d3 a5 d4 c6 f3 c7 d2 a6 b2 a7 h2 Bd3 f2 Be2 f1Q Bd3 b4 Be2 d3 Ra6 b3 Ra1 Nc6+ Ke4 e5 Bf3 Bd7 Qe1 d1N Nd2 b1N Qf2 b2 Qb6 Nf2+ Kd5 e4 Bd1 e3 Qb3 e2 Ndf3 e1B Qc3 d2 Qb4 Ne4 Ra2 Qc8 Qb8 Na5 Ke5 Rh6 Bc2 d1N Qb4 Na3 Bb1 Ndc3 Qb6 Nd6 Nd2 Ne7 Nh3 Nab7 Nf2 Bb5 Qa6 Ncd5 Nc4 Nc2 Ra3 Rg6 Rc3 Ncb4 Bd3 b1Q Nb2 Rh6 Rg1 h1N g6+ Kg8 f7+ Kg7 Bc2 Ng3 Nh1 Bf2 Be4 Qg2 Rd1 Qg1 Rc4 Bb6 f6+ Kh8 Rc6 Ngf5 g7+ Kh7 g8N Kg6 Bd3 Kg5 Be4 Bg7 f8N Kh4 Nd7 Kh3 Nb8 Bh8 Bd3 Nf7+ Ke4 Rg6 Nh6 Kg2 Bc2 Ng8 Bd3 Nfd8 f7 Be5 f8R Nf7 Bc2 Nh8 Rf7 Nfe3 Rf3 Nf5 Nf7 Bh2 Bd3 Nf4 Ke5 Rg7 Be4 Nfh6 Bh7 Ne7 Kf6 Rg5 Be4 Rf5+ Kg7 Rf6 Bg6 Qcf5 Kh7 Neg8
Rn1Bnn2/PqN2Rbb/NK1QP3/1b4q1/1n4bR/2b5/RPN2nk1/6r1 w - - 0 1 illegal: No proof kernel
n3n3/1b3NbK/1P1Q2RN/r1bn4/PR1Pn3/bbRr1bN1/3B3N/1k4n1 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 a5 b4 axb4 h4 gxh4 Na3 d5 Rb1 b5 Be2 b3 Ra1 b4 Nb1 Qd7 Bd3 Qb5 cxb5 Kd7 Bf1 Ke8 Bc4 dxc4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Ke4 d4 h5 Kg6 e5 a4 c5 g4 c3 f4 h3 b6 h2 f6 c2 f5 b2 f7 b3 g5 h4 f6 h3 Be3 c1B Bd2 Kd3 Qe1 Kc2 Qh4 c4 Be1 c3 Qh6 e4 Qh4 e3 Ne2 Bb7 Qf4 Ra5 Qf3 Bc5 f8R Na6 f7 Nf6 Bd2 Ne8 Re1 h1B Qh5 h2 Qh4 Bhd5 Qg4 h1B Qd7 Rh3 Qg4 Nac7 Ra3 Bhf3 Qf4 Na8 Ng3 e2 Rg8 Bc4 Rf1 e1N f8N Bcd5 Ne6 Bc4 Be3 Bcd5 Nd2 b1N Qf8 b2 Nd8 Ba2 Rg1 Bb3 Ndf1 Nd2 Nf7 b1N Nh2 Ne4 Qd6 Kb2 Rg2+ c2 Bd2 Nbc3 Rg7 Kb1 Rg1 Bh5+ Kh7 Nf3 g6 Nd5 Rg2 Ng1 Rg8 Ba6 g7 Bb7 Rf2 Bb2 Rf3 c1B Rc3 Rb5 Rc4 Ra5 Rb4 Be2+ Nh5 Rd3 Ng3 Ba2 Rc3 Bb3 Rh8 Bed1 g8N Ba3 Ngh6 Be2 Rg8 Bf3 Be1 Bg5 Bd2 Bf6 Rg6 Bg7
rB3KR1/5Rpk/1Q2qqNr/2P1bn2/P4b1P/n1B1b2b/8/R1Bb1q1R w - - 0 1 legal: proof: e4 d5 b4 a5 g4 axb4 c4 c5 Qe2 h5 gxh5 f5 exf5 Qc7 Na3 Qa5 Qd1 Qd8 Nc2 b3 Nb4 cxb4 c5 Ra6 Be2 Ra8 Bc4 dxc4 Ke2 Kf7 Ke3 b5 Ke4 e5 d4 b2 a4 b1Q+ Qc2 b3 f4 b2 h4 b4 f6 b3 h6 Kg6 f7 c3 h7 Na6 d5 Ne7 d6 Bh3 d7 Qa2 Rh2 b1Q Qd3 b2 Rh1 c2 Nf3 Qe6 Qb5 Nf5 Qb6 Bd6 f8R Nb4 Rf7 Qdf6 d8B Kh6 Bc7 Kg6 Bb8 Bc7 Bd2 Qf1 Be3 b1B Bc1 Rd8 h8R Rd6 Rg8 Kh7 Nd4 Ba2 Nc6 Bb3 Ne7 Rc6 Ng6 Bd6 Be3 c1B Bd2 Bd1 Bc3 Nd4 f5 Nbc2 Bb2 Bf4 Bc3 Qd8 f6 Nf5 Qa6 Na3 Qb6 Qee7 Kd5 e4 Rb1 e3 Ra1 Qec7 Ke6 e2 Rd7 e1B f7 Bed2 f8B Qe8+ Be7 Qcd8 Ra7 Qed7+ Kf7 Bde3 Rc7 Q7c8 Bg5 Bde5 Bh6 Qg5 Re7 Qe6+ Kf8 Qgf6+ Rf7 Bg3 Bf4 Bh2 Bg3 B5f4 Bge1 Be5 Bed2 Bhf4 Bc1 Qa2 Nh8 Qg5 Qd8 Rh6 Qb6 Qe6 Ng6 Qgf6
1RrnR1R1/nRn1K1Qb/q1k3BB/BN6/bp6/3b1rP1/PP2q2q/1b6 w - - 0 1 legal: proof: e4 c5 f4 f5 d4 cxd4 g3 g6 Nc3 Bg7 Nd5 Be5 g4 fxe4 f5 Bg3+ hxg3 g5 Nf4 gxf4 Bc4 a6 Bxa6 Kf7 Bf1 Ke8 Kd2 h5 c4 b5 g5 e5 c5 d5 f6 Kd7 g6 f3 g7 b4 f7 e3+ Kd3 e2 f8B e1N+ Kd2 h4 Rh2 e4 Be2 h3 Bb5+ Nc6 Qc2 f2 Rg2 f1B Bc4 d3 Ke3 d2 Kf4 d1B Kf5 h2 Kg6 h1Q Kf7 d4 Qe2 d3 Bg5 d2 Bb5 e3 Qc4 e2 Bh6 Nd3 Bf4 e1Q B4d6 Ra3 Rh2 Bc2 Rh7 d1B Nf3 Nf6 g8R Qe2 Bc7 Ne8 Bh6 Nf4 Nd4 Qhh2 Qc3 Bb1 Bd3 Ne6 Nb5 Ba4 Qg7 Na7 Ba5 Kc6 Bg6 Qb6 Ke7 N8c7 Qc3 Bd3 Qg7 Qa6 Re1 Bd7 Rb8 Bb1 Rg8 Rf3 Rb8 Kd5 c6 Rd8 Bc2 Rc8 Bg6 Qc2 Re3 Bd3 Re4 Nd8 Re1 Ne8 c7 B7f5 Re4 Qce2 Re6 Nf7 Re4 Kc6 Re3 Rd8 c8R+ Nc7 Re5 Rh8 Re8 Rf8 Rh8 Nd8 Rg8 Bfe4 Rb7 Nf7 Reb8 Rc8 Rf5 Nd8 Rff8 Qd2 Re8 Qdg2 Bh5 Bh7 Bg6 Qe2+
2b3Nq/B1brbN2/2p1N1rr/5P2/RBQ2b2/4Pnn1/3q1N1P/qk3KB1 w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 hxg4 d6 Rh4 Nh3 Rh7 Ng1 Rh8 d4 Be6 b4 Bc8 d5 f5 e3 f4 Kd2 f3 Be2 fxe2 Ra3 Nc6 Rd3 Nb8 Rd4 exd4 Ke1 Kd7 f4 a5 f5 g5 b6 g3 b5 g4 b7 c6 b6 g2 Qc2 a4 Qc5 a3 Qc3 a2 Qa5 a1Q Nh3 g1R+ Kf2 e1B+ Ke2 g3 Bb2 g2 Ng5 Be7 Qb4 Nf6 Nh7 Nh5 Nc3 Ra7 Nd1 Bg3 Bc3 Bf4 Qc4 d3+ Kf2 d2 Bb4 Qe8 Ke2 Ng3+ Kf2 Na6 b8B Nc7 b7 Nb5 Bc7 Qh5 b8B Nd4 Bd8 Rb7 Ba7 Nf3 Bc7 Re1 Bcb8 g1B+ Kg2 Rf1 Nf2 d1Q Bc7 Qd2 Bca5 Ke8 d7+ Kf7 Nf6 Rh6 d8N+ Kg7 d6 Rd7 Bc7 Qe8 Nf7 Qh8 Ng8 Rc1 Qb5 Rc4 Qa6 Re4 Qd3 Ree6 Qc4 Reg6 Bcb8 Rc7 d7 Rb7 d8N Rd7 Qe2 Bc7 Ne4 Bf2 Qc4 Bf4 Re1 Ne2+ Kf1 B2g3 Nf2 Bc7 Ng5 Bgf4 Ndf7 Ng3+ Kg2 Qa3 Ra1 Qac1 Ra3 Qa1 Ra4 Rh4 Ngh6 Kf6 Ne6 Rh3 Nfg5 Ke5 Ng8 Bcd6 Bc7 Rhh6 Bca5 Qdb2 Be1 Bc7 Bab4 Qd2 Qe2 Kd5 Nf7 Ng5 Qg4 Kc4 Qe2+ Kb3 Qc4+ Kb2 Kg1 Ne2+ Kf1 Nf3 Nd3+ Kb1 Bf2 Bf8 Bg1 Be7 Nf2 Ng3+
8/2b4N/1bb4n/1nPPR1bR/N1k1r3/P1N3Kp/1QBqr3/2rRb1bN w - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 f5 g4 fxg4 Ne2 d5 Ng1 dxe4 h4 g5 Qf3 g3 Qd1 g4 Ba3 Qd5 Bb4 Qg5 hxg5 cxb4 d4 Kf7 c4 Ke6 f4 b5 g6 h5 a3 b3 a6 b2 a7 g2 Kf2 e3+ Kg3 e2 g7 e1B+ Kh2 b4 Nf3 g1B+ Kg2 h4 Ne5 b3 Ra2 g3 Qe2 h3+ Kf3 g2 Kg4 Bd2 Qe1 Bb7 Qh4 Na6 Ng6 Nh6+ Kg3 Bc6 g8R Re8 a8N Nc7 Ne5 Nb5 Nc3 b1R Bd3 b2 Nb6 Rc1 Rg5 b1Q Rh5 Qb4 f5+ Kd6 d5 Kc5 f6 Bg5 Ng4 e5 f7 e4 Bb1 e3 Bc2 e2 Nf2 Re4 Nba4+ Kd4 Qg4 e1B Qe2 Bfe7 f8N Bd8 Nh7 Rf8 Ra1 Bb6 c5 Rf7 Qf3 Kc4 Qf6 Qa5 Nb1 Qd2 Qb2 Rb7 Nbc3 Bh2+ Kf3 Bhf4 Rh2 g1B Nh1 Bfc7 Re2 Rh4 Re5 Re4 Rb1 Rb8 Ra1 Re8 Rb1 Re2 Ra1 Rf2+ Kg3 Ref8 Bg6 R8f4 Rb1 Re4 Ra1 Rc2 Rd1 Rc1 Bf5 Rh4 Bb1 Re4 Bc2 Rfe2+
Q2BBn1n/3B2Rn/2K1qP2/b1n5/r4r1k/3np2n/BP2q1P1/1qR1R1N1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h3 Bb7 f5 Bd5 Nc3 Bf7 Nd5 Bh5 Nf4 Bg4 hxg4 gxf4 Kd2 Kf7 c4 Kf6 c5 Kg5 b6 a5 b7 d5 c6 h5 c7 e5 c8B f3 f6 h4 Be2 e3+ Kd3 a4 Qb3 e4+ Kc2 a3 Rh2 h3 Qd3 f2 Kb3 f1N Rb1 a2 Rh1 h2 Qb5 d3 Qc6 a1N+ Kc3 d2 Kd4 d1Q+ Ke5 d4 Qb5 d3 Qe8 d2 Qf7 Ng3 Qg6+ Kh4 g5 Qe8+ Kd5 Bb4 Bf5 Ba5 Nh3 Nh6 Qg8 Qe6+ Kc5 Nb3+ Kb5 Nc5 g6 Nf7 g7 Nbd7 b8R Nf8 Rf1 h1N Beg4 e2 Re1 e3 Ng1 Nf2 Bh5 Nge4 Rb7 Nh3 Ra7 Qc2 Rd7 d1N Bd2 Ndf2 Rbc1 Qb1 Ra7 Rh7 Qh8 Neg5 g8B Nfd3 Bb4 Qea2 Bd7 Qe6 Bc3 Rg7 Be5 Rg6 Bc7 Ngh7 Bd8 Rg4 Rb7 Rf4 Rc7 Nfe5 Bhe8 Neg6 Bgf7 Ra6 Qg8 Nh8 Ra7 Qd6 Ba2 Qe7 Qd5 Qf7 Qa8 Qe6 Red1 e1Q Rc7 Qe2 Re1 Bb4 Ra7 Ra4 Rb7 Qf7 Kc6 Bc3 Bf5 Qg8 Rg7 Ba5 Bfd7 Qe6+
B1bN3K/3rPB2/1b3R1b/k1b1P3/B1P1R3/Bbrp2R1/Q6b/qqq2n2 w - - 0 1 illegal: No proof kernel
1B1RQ2b/r1r1n3/1rBbRqP1/prR2N2/2bP1K2/b3PR2/B5k1/q6r w - - 0 1 illegal: No possible last move
q3N3/2r1Pr2/1R2r1n1/1B2B3/2q2P1n/QP3bp1/BN1Nr1n1/nK2kr1B w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nh3 cxd4 Ng1 e5 h4 g5 Be3 d3 Ra5 g3 Bc1 g4 Ra4 Be7 Rd4 Bg5 hxg5 exd4 Kd2 Ke7 c4 Ke6 e4 Ke5 g6 Kf4 c5 a5 g7 d5 b6 h5 b3 g2 e5 h4 f3 Kg3 e6 Kf2 e7 g3 c6 h3 c7 h2 b7 a4 f4 a3 Be2 a2 Nc3 a1N Nf3 g1R Ne5 Re1 Nf3 Nc6 b8N Rh7 Ng1 Nh6 g8B Bg4 c8B Ra6 Bf3 Ne5 Bb2 Rf7 Kc1 d2+ Kb1 d3 Nce2 d4 Bfb7 Qc7 Bd5 Ng6 Bf3 Qc4 Bf5 Re6 Nc3 R1e2 Qc1 d1N Na6 d2 Na4 d3 Be5 Ke1 Qa3 Ne3 Nb2 Ng2 Nc7 Bh5 B5e4 Nf5 Ne8 Nfh4 Bc6 Bg4 Bh7 Bh5 Bb5 d1R+ Ka2 Rdd2 Kb1 Rc2 Be4 d2 Nf3+ Kf2 Rc1 d1R Nd2 h1Q Bd5 Rf1 Bf3 Ne1 Ba8 Qb7 Rd1 Qa7 Bh1 Bf3 Rc1 Qa8 Rd1 Qb4 Rc1 Rc8 Rc6 Rc7 Rb6 Neg2+ Ka2 Nh8 Bb1 Qbe4 Na4 Qd3 Kb2 Qdd5 Ba2 Ke1 Kb1 Qc4 Nb2 N8g6
4q3/NNpBb1n1/1P6/1n1k3b/B5Br/nK4Pr/QPp1Rnq1/2B2n1N w - - 0 1 legal: proof: f4 d5 h4 b5 c4 dxc4 a4 a5 axb5 e5 h5 g5 Ra3 a4 Rf3 a3 fxg5 a2 Rf4 exf4 Na3 a1Q h6 Qb1 Rh2 Nxh6 Rh1 Ng8 e4 Kd7 d4 Ke6 Kd2 h5 Kc3 f5 g6 h4 g3 h3 g7 h2 b6 f3 e5 f2 Nh3 f4 Qg4+ Kd5 e6 f3 e7 Qc2+ Kb4 c3 Bh6 Nf6 Be2 f1N Nb5 f2 Na7 Nh5 Bc1 Ne3 Re1 f1N Nf2 Nc4 Nh1 Na3 g8B+ Be6 Qg6 Bf7 Bg4 Qe8 Re2 Ng7 Bh7 Qe4 Kb3 Qg2 Qb1 c2 Bhf5 Rh3 Bd7 Bh5 Qa1 Nc6 Qa2 Ne5 Ba4 Nec4 Bad7 Nd6 Ba4 Qb8 e8B Ndb5 Bed7 Qe8 Nc6 Kd6 d5 Be7 Na7 Kc5 d6 Kd5 Bc8 Rh4 d7 Rb8 d8N Ra8 Nf2 h1N Nb7 Rb8 Nd3 Nf2 Bcd7 Ne4 Nf2 Ra8 Nh1 Nf2 Bdf5 Rd8 Bc8 Rd6 Bcd7 Rh3 Bgf5 Rc6 Bg4 Rc4 Bgf5 Rch4 Bfe6+ Kd4 Bg4 Kd5
2B2BnK/bp2q3/NnRRr1kb/P2P4/bqBRPb1p/B2Qb3/8/7r w - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 cxd5 f6 d6 fxg5 Bh3 g4 Bg2 Qf6 Bf1 Qd8 h4 g5 d4 g3 d5 g4 Nc3 Be6 Nb5 Bc8 Nd4 Qg5 hxg5 exd4 Kd2 Kf7 Kd3 c5 Ke4 h5 Ke5 h4 f4 g2 a4 d3 d7 c4 d8R b3 f5 g3 f6 b2 Nh3 b1Q Rd6 g1B Nf4 d2 Nd3 c3 Nc5 g2 a5 Rh6 e3 c2 Ra4 Bd7 Ba3 c1B Na6 Qb6 Qb3 d1Q e4 Qd8 Qc2 Ba7 Rd4 g1B Bb5 Be8 Qd3 Qa4 Rh2 Qc4 Rc2 Nd7+ Kf5 Nb6 Ke5 Kg6 f7+ Kh7 Kf5 Bg7 f8B Qb4 Rc8 Rf6+ Ke5 Bf2 Bc4 Rf7+ Ke6 Ba4 Rcc6 Bh6 Ke5 Rf3 Ke6 Bf4 Kf7 Ne7 Kf6 Rh3 Kf7 Rh1 g6+ Kh8 g7+ Kh7 Kf6 B2e3 Kf7 Qd7 Kf6 Re8 g8B+ Kh8 Bf7 Kh7 Be6 Qd8 Bd7 Ng8+ Kf7 Re6 Bc8 Bhg5 Be7 Kh6 Bf8+ Kh5 Kg7 Bh6+ Kh7 Qe7+ Kh8 Kg6
1q3q2/Bn1qN1n1/2BP2Qn/2b1r3/1N1r1Pp1/2kP1n2/Bp2K1N1/b3NR2 w - - 0 1 legal: proof: f4 d5 g4 a5 a4 h5 c4 hxg4 b4 axb4 cxd5 Bf5 Ra3 Be4 Re3 Bf3 exf3 f5 Re4 fxe4 h4 Kd7 h5 Kd6 h6 Kc5 a5 Kd4 d6 c5 a6 b5 d3 e5 a7 g5 f5 g3 h7 e3 f4 b3 f6 g4 f7 c4 Nd2 c3 Rh5 b4 Rh3 g2 Rh6 e4 Re6 b2 Be2 b1Q Re8 b3 Ba3 c2 Re6 c1N Nh3 g1B Nf2 Na6 Bf3 e2 Bc5+ Kc3 Rh6 Qe7 Rh1 Bg7 f8N Nh6 Ng6 Rhe8 h8N Qf8 Ne5 Nc7 Nhg6 Ne6 Nc6 Bd4 Bg2 Ng7 Nb4 Re5 Nf3 Rc8 Bb6 Rc4 a8B Bc5 Bd5 Rd4 Ne7 Qb2 Nh3 Be3 Rf1 Bd2+ Kf2 e1N Nh4 Nf3 Ng1 e3+ Kg3 e2 Ba7 Qb1 Qe1 Qb2 Bh1 Qb1 Ng2 Qb2 Qf2 e1Q Bc4 Qe4 Qe3 Qef5 Kf2 Qd7 Qe4 Be1+ Ke3 Bh4 Bd5 Bf6 Bf7 Qb1 Kf2 Ne2 Bc4 Ng3 Qg6 Ne4+ Ke3 Neg5+ Kf2 Ngf7 Be6 Nd8 Bd5 Nh2 Nf3 Nb7 Nfe1 Nf3 Qe4 Bh4+ Ke2 Bf2 Bc4 Be3 Qg6 Bc1+ Ne3 Bb2 Bf7 Ba1 Bg2 Nh2 Bc6 Nf3 Bg8 b2 Ba2 Qd1+ Kf2 Qb3 Ke2 Rg5 N3g2 Qbg8 Nec2 Qb8 Nce1 Qgf8 Qf5 Rh5 Qg6 Re5+
N1n1K1Bk/4b2P/P2q1N1p/1Rr5/2RqbRb1/N2p3n/PR6/b2nQ1r1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 bxa5 Ra6 Bf4 Ra7 Bc1 Ra8 h4 h5 g4 hxg4 h5 Ra6 h6 Ra7 h7 Ra8 Bh6 gxh6 Ke2 Kf7 Kd3 Kg7 Ke4 e5 Kd5 b5 c4 b4 f4 g3 a6 e4 c5 b3 c6 e3 c7 e2 Qc1 e1B Qd1 d3 Rh2 d2 Na3 b2 Rb1 g2 Nf3 g1Q Ng5 Be7 Bc4 Nc6 Ne4 Nd4 Nf6 Ne2 Qc1 d6 Kc6 d1N Rh4 Be6 c8N d5 Nb6 d4 Rh2 Ra7 Na8 Bc3 Qd2 Qf2 Qe1 Ng1 Rc1 b1B Rg2+ Qg3 Rb2 Be4+ Bd5 Bd2 Rc4 d3 Rb5 Qg4 Nd7 Qg3 Rc3 Qf2 Rc4 Bg5 Kd6 Rc7 f6+ Kg6 f7 Kg7 f8R Qd4 f5 Bc3 Rf6 Nh3 Rf8 Ba1 f6+ Kg6 f7 Kg7 Rb2 Ne7 Re8 B6f5 f8R Rg8 Rf6 Be6 Rf4 Kh8 Ref8 Bh4 R8f5 Rg1 Rg5 Bg4 Re5 Qc3 Bg8 Rc8 Ref5 Qd4+ Ke6 Rc7 Kf7 Nc8 Rfb5 Be7 Nf6 Q8d6 Ke8 Rc5
3k1N2/Pqpn1P2/2nNn1K1/3r2Pp/Nb3B2/1B1b1b2/1Q2r3/2RqbB1N w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 f5 hxg5 axb4 c4 fxe4 Ra3 bxa3 cxd5 Qd7 Rh4 Qd6 Rh1 Qd8 Ke2 e5 Ke3 b5 g4 h5 f4 a2 d4 a1Q g6 b4 a5 b3 d6 b2 g5 Nd7 f5 Rh6 d5 Nb6 a6 Rh7 a7 Rh8 f6 Ne7 g7 Nc6 g8B Bb7 Ne2 Qc8 d7+ Kd8 Qd4 Bb4 Nbc3 b1B Na4 Bd3 Qb2 Rh6 Bd2 Qd1 Ng3 Rh8 Be6 Re8 f7 Rb8 Rg1 Ba8 Nh1 Qb7 Be1 Re7 Bg3 Rc8 Bf4 Re8 Kf2 e3+ Kg3 e2 Kf3 e1N+ Ke3 Bc4 Ke4 Nc2 Kf5 e4 Kf6 e3 Kg6 Ke7 d8N e2 Nc3 e1B Na4 Nd7 d6+ Kf8 Bd5 Re2 Be6 Ba6 Ba2 N2d4 Bb3 Ndb8 d7 Ke7 Ne6 Rd8 Nf8 Ne6 Rg3 Bc4 Rc3 Bb5 Rc1 Bd3+ Kh6 Re8 d8N Nd7 Rc3 Re5 Rc2 Rd5 Rc1 Qb8 Nb7 Qc8 Nd6 Qb7 Qh8 Kd8 Qc3 Nec5 Qb2 Re2 Kg7 Ne6+ Kh6 Ra5 Ne4 Ne7 Bd2 Qb8 Nd6 Bf3 Be3 Qb7 Bf4 Rf5 Kh7 Nc6 Kg6 Rd5+
1R4nN/3n1r1k/pn2N1RP/bPb1r3/4N1n1/2Kpbq1Q/2b1RPN1/7B w - - 0 1 illegal: No possible last move
5Rb1/RN4P1/2Qr1N1B/1PNb3n/2q1qpq1/pb1NkP2/4b1r1/3bK2R w - - 0 1 legal: proof: d4 c5 a4 cxd4 e3 b5 Ke2 bxa4 Ke1 d3 Kd2 d5 Nh3 d4 Ng1 g6 Ke1 d2+ Ke2 Bg7 Kd3 Be5 Kc4 d3 Kb4 Bd4 exd4 Ba6 Kc3 Bc8 h4 Qa5+ Kc4 Bb7 g4 Qg5 h5 Nh6 Be2 Qe3 g5 Ng4 h6 Nf6 Bh5 gxh5 g6 Bc8 g7 Nfd7 Kd5 Qg3 Ke4 Qh2 Kf3 Qe5 Kg2 Na6 Kf1 Qd5 Qe1 Nac5 Qd1 Ne6 g8N Ng7 hxg7 Nf6 Ne2 Qd6 Ng1 Qd8 b4 Kd7 c4 Ke6 b5 Kf5 c5 Ke4 d5 a5 d6 e5 d7 a3 c6 h4 c7 h5 Ra2 a4 Nh6 h3 Ra1 h4 Qb3 d1B Nf3 h2 Qc2 a2 Rg1 h1B Rg6 h3 Rg2 a3 Nd4 h2 Qb3 d2 Qa4 Qg8 d8R Ra6 Rg1 Bhf3 Rf8 h1B Bb2 Nh5 Bc1 f5 Ne2+ Qc4 Ng4 Rd6 Qa6 Be6 c8N Bg8 Nf6+ Kd3 Qb6 e4 Rg6 e3 Nbc3 Bb3 Qc6 d1B Ke1 Bhg2 Rb1 a1Q Na4 Qad4 Rg4 Bfd5 f3 Bf1 Ra1 Qe4 Nf4+ Kd4 Rg6 e2 Nd3 Qg4 Bh6 f4 Nac5 Ke3 Rc1 Qf5 Rg1 Qg4 Rh1 Rh7 Bg5 Rh6 Rc2 Rg6 Bh6 Qh3 Rc3 Rg2 Rc1 Qg4 Rc2 Rd7 Nd6 Rd8 Ndb7 Rd6 Rc1 Rg1 Qd7 Bdf7 Nd8 Qd4 Rc4 Bd5 Qb7 Rg2 Ra4 Qc4 Ra7 Kd4 Kd2 Qa4 Qc6 e1Q+ Kc1 Qe4 Ndb7 Bfe2 Kd2 Qc4 Ke1 Ke3
5kB1/Nnrn2Rb/3Nq3/5P1K/b2N1Pq1/2PnbR1Q/p1p3Rb/1qN5 w - - 0 1 illegal: No extended proof kernel
4BRr1/br2BRP1/3pp2n/1P5b/1Pbb2R1/r1Bq3k/N3QK1B/b5r1 w - - 0 1 illegal: No possible last move, all moves rejected
8/1NQrPP1r/1RR2q2/K3NP2/q1q2Npn/q2R2q1/p2Rbq2/B5bk w - - 0 1 illegal: No possible last move, all moves rejected
rB2R1r1/p1P4R/P4Nrp/2Q4n/qn1P1k2/3B2Rb/3r2r1/1Kr1RBq1 w - - 0 1 legal: proof: c4 d5 g4 c5 f4 e5 h4 exf4 g5 Be7 b4 dxc4 bxc5 Bf8 Nc3 Be7 Ne4 f3 Nf6+ gxf6 g6 f5 Rb1 f4 Ra1 Bg5 hxg5 Qd3 Bg2 Qd4 Bf1 Qd8 a4 Kd7 e4 Ke6 d4 b5 Kd2 f5 Kc2 h6 e5 c3 a5 f2 g7 f3 a6 f4 g6 Kf5 c6 b4 e6 b3+ Kb1 b2 e7 c2+ Ka2 b1R e8B Qa5+ Ba3 c1R Nh3 Nf6 g8R Qa4 g7 Nh5 Rg1 Rb6 Rg3 Ke4 Rf8 Rg8 Rf7 Ke3 Ng5 Bh3 Bd3 f1R Ne4 Rg1 Nf6 Rg2+ Qc2 Rd1 Rc1 Rdd2 Bd7 Rb1 Rh1 Rc1 Be6 Rcg1 Bec4 Rc1 Kb2 Rcg1 Bd6 Rc1 Rg5 f2 Rg3+ f3 Rd1 f1R Re1+ Kf2 Rd7 Rh1 Bf1 Rhg1 Bce2 Ke3 Bc7 Rc8 g8R Rd8 Rh8 Rg8 Be5 Rg6 Re8 Rg8 Rh7 Rg6 Rg4 f2 Bd3+ Kf3 Bh2 Rg8 Rg3+ Kf4 Be4 Nd7 Bed3 Nb6 Rd8 Nd5 Rde8 Rdd1 Qc5 Nb4 Bf5 Rc4 Be4 Rd2+ Kb1 Rc3 Bc4 f1Q Bed3 Rh1 Bb5 Qg1 Bf1 Re3 Bbd3 Re6 Rgg7+ Kf3 Bb8 Rd6 c7 Kf4 Rg3 Rb6 Ng4 Rbg6 Nf6 Rhh2 Rc1 Qe3 Bfe2 Rh1 Rd1 Re1 Bf1 Qg1 Rc1 Ree2 Rd1 Rc2 Rc1 Red2 Rce1 Rc1+
1k2Bn1B/3nq3/2P5/KPQ3qr/3P2pN/3Bn3/1qpN2bq/1B2rRNn w - - 0 1 legal: proof: g4 c5 f4 h5 b4 hxg4 bxc5 e5 a3 exf4 Bg2 b5 Bh3 b4 Bf1 b3 c4 d5 c6 Be7 c5 Bf6 Ra2 Bc3 Rc2 Ba5 Rc4 Bb4 axb4 dxc4 d4 f5 Kd2 g5 Kc3 a5 h4 a4 e4 g3 e5 g4 h5 a3 c7 Kd7 b5 b2 Kb4 g2 h6 a2 h7 a1Q Bd3 f3 Rh6 c3 Be4 f2 Rh4 f1N Qe1 f4 Qf2 f3 Rh5 c2 Bh6 Qe7 Qh4 f2 Qh1 Nf6 Nd2 Bb7 c8B+ Kc7 e6 Ng3 Bd3 f1N Bg7 Nbd7 Rf5 Qc1 Qh5 Ne3 Rf1 Ra1 Qf5 Rb1 Ka5 Kb8 Qh5 Be4 c6 Nf8 Qc5 N6d7 Bf6 Nh1 Bg7 Qg5 e7 Qe1 e8B Rd1 Bf6 b1Q Bg7 Qb2 Bf6 Nb6 Be6 Nbd7 Ba2 Qe2 Bb1 Re1 Ngf3 g1Q Bg7 Qgf2 Ng1 Qh2 Bf6 Rg8 h8N Bg2 Ng6 Rh8 Nh4 Rh5 Bh8 Qd6 Rf2 Qde7 Rf3 Qf2 Rf6 Qg3 Rf1 Qh2
2QB1bn1/2R5/1bK4B/3Nrp1R/1P3PBr/1R2br2/P2p1b1b/1r2n1kB w - - 0 1 legal: proof: c4 b5 g4 bxc4 b4 a5 Na3 h5 Nb5 hxg4 Nd4 a4 Nb3 Rh4 Nc5 Rh5 Nb3 Rh8 d4 axb3 e3 c5 Be2 d5 Bf1 c3 Ne2 c4 Ng1 Qb6 e4 Qc5 dxc5 d4 Nf3 Be6 Ng1 Bd5 exd5 Ra3 Qe2 Ra4 Qd1 Ra8 Ke2 Kd7 h4 e5 f4 f5 d6 Kc6 h5 Kd5 d7 Ke4 d8R g5 h6 c2 c6 b2 c7 b1R c8B d3+ Kf2 g3+ Kg2 g4 h7 c3 Rh2 Nd7 Rh1 Nc5 Bb2 Ke3 Rh5 c1B Rh1 e4 Rh5 c2 Bb7 Ra3 Bg7 Bb2 Bf6 c1B Rc8 Bd4 Ne2 Rc3 Kg1 g2 Rc7 Bd2 Bd8 Bc1 Kh2 Kf2 Qc2 g1B+ Kh1 g3 Bh3 e3 Bg4 Rcb3 Nc3+ e2 Nd5 Bce3 Qc1 e1R Ba8 R1b2 Rb1 d2 Qc4 Rd3 Qa6 Ra3 Qc8 Nd3 Bc6 Bb6 Bb7 Rc2 Rb3 Rb1 Bc6 Rc5 Bb7 Ke1 Kg2 Bh2 Kf3 Kf1 Ba8 g2 Bc6 Bf2 Bb7 Bfg3 Ke3 Ne1 Kd4 g1B+ Ke5 B3f2 Ke6 Raa5 Kd7 Rc3 Ba8 Rf3 Kc6 Bfe3 Bb7 Bgf2 Ba8 Kg1 Bb7 Nf6 Ba8 Rg8 h8B Rg6 Bb7 Rh6 Bg7 Rh7 Bh6 Ng8 Nc3 Re5 Nd5 Re8 Ba6 Re5 Bd3 Rh3 Be4 Rh4 Bh1 Rg7 Bh3 Rg3 Bg4 Rf3
2bQK1r1/N1N1Rn1R/P5n1/Bp1rpq2/3rbbPP/4k3/1N3p2/nRN5 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 g5 g3 gxf4 Na3 h5 Nb1 h4 Bg2 h3 Kf1 hxg2+ Kf2 Rh4 Ke1 Rh8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kg5 Ke4 Kg6 e5 Kf7 c5 d4 b5 a4 b3 g4 f3 f6 b2 d6 f2 d7 c4 a5 c3 a6 c2 d5 Be7 d6 Rh4 Ne2 g1R Nd2+ Kd3 Rb1 Nc6 Nc4+ Ke4 h3 Rh8 Bd2 c1N Ba5 Nb3 Nc1 Na1 Rh2 Qb6 Ke8 Nd8 f7 Bg5 f8R Nf7 d8N Bf4 d7 Qg6 Ne6 Qf5 d8N Ne7 Nc7 Rg8 Nc6 Ng6 Qd8 Rd1 Na7 Rd4 Rh1 Rb8 Rh2 Rb6 Rh1 Rbd6 Rh2 R6d5 Rh1 Nfh8 Rh2 Rg7 Rf7 Kf3 Re7 Nf7 Nb6 Ke3 Na4 Nc2 Ra1 b1B Nb2 Ne1 Rh1 Be4 Rb1 Nc2 h4 Na1 Rd1 Nf8 Rd2 Rg8 Rc2 Qe6 Rc6 Qf5 Rh6 Bh1 Rh5 Be4 Rh7 Ng6#
1n1B3k/1p1K2nB/r1r5/Nb5P/P1b1r1N1/p4RP1/B2Qqp1r/N2r2B1 w - - 0 1 illegal: No possible last move
2n1b3/3Npp2/B1RNpK2/1nP3R1/Q1q1r1b1/4P1kr/NP1R1n2/2Nr2r1 w - - 0 1 illegal: Other
4Q1NR/2Pn3r/2nr1RB1/3P2rN/bN2p3/1qp1p2P/K1R2b1k/3nR2n w - - 0 1 illegal: No possible last move, all moves rejected
1K3B2/1qP4k/2N3nN/BpPpqBQb/n2pq3/1Pb5/4r2b/2B2nNR w - - 0 1 legal: proof: h4 g5 e4 gxh4 b3 f5 exf5 a5 Qe2 a4 Qe5 a3 d4 c5 d5 b5 Qd4 Ra4 Be3 Ra8 Qb2 axb2 a4 Nh6 Na3 Ng8 Rd1 Ra6 Rd4 Rc6 dxc6 cxd4 Ke2 Kf7 Kf3 Kg7 Kf4 b1Q Ke5 h5 f4 d5 g4 h3 c4 h2 f6+ Kh7 f5 h4 c7 h3 g5 Qe1 f7 Na6 a5 Nc5 f6 Bg4 Nc2 Na4 Nb4 Qc8 Nc6 Bh5 a6 e6 a7 Ne7 Kd6 e5 a8Q e4 Bc1 Qa6 Qd8 e3 Kd7 Ng6 Bd3 e2 Bf5 Bd6 f8B Bf4 Bh6 Re8 c5 Qg3 f7 e1B f8B Re2 Qf6 Bc3 Qd8 Qe3 Qf6 Qe5 Bd2 Qb6 Kc8 Qa6+ Kb8 Bb2 Ba5 Bc3 Nf3 Bg3 Rb1 h1Q Ng1 h2 Qd8 Kg8 Rd1 Qhe4 Rb1 Nh4 g6 h1N g7 Bh2 Bc1 Ng6 Qg5 Kh7 g8N Ng3 Nh6 Nf1 Rb2 Re3 Rf2 Re2 Rf4 Bg3 Rh4 Bf4 Rh1 Bg3 Nf7 Bh2 Nh6 Qb7+
q1QRK3/bB1Bn1qk/q3Rq1p/q4N2/p2pRB2/b3PRr1/1n3P1P/8 w - - 0 1 legal: proof: b4 a5 g4 f5 c4 fxg4 a4 b5 d3 e5 Nd2 Bb7 Nb3 bxa4 b5 c5 Nd4 exd4 b6 Ba6 Nh3 Bb5 cxb5 c4 Ng1 c3 Be3 Ra7 Bh6 Rc7 Bc1 Rc4 dxc4 Be7 Bd2 Bc5 Bc1 Bf8 c5 g5 c6 a3 c7 d3 c8B Kf7 b7 Kg6 b6 d5 e3 a4 Ne2 h6 Ng3 c2 Kd2 a2 Kc3 d2 Kd4 Nc6+ Kc3 Ne5 Kd4 Nd3 b8R Kh7 b7 Qa5 Ba3 c1B Bc5 Ba3 Qc2 d1Q Bg2 Qf3 Rab1 a1Q+ Rb2 Qa6 Bd6 Qe1 Qc5 Qea5 Rg1 Qf5 Rb6 Nb2 Be6 Qa8 Be5 Qf6 Re8 Q8a6 Nf5 g3 b8R g4 Bh1 g2 Rbd8 g3 Qc8 Bfd6 Rc6 Bb8 Rcd6 Ba7+ Rb6 Qe7 Bf4 Qh4 Ke5 d4+ Bd5 Qg5 Ke6 Qg6+ Kd7 Qf6 Re5 Ne7 Rbe6 Rg8 Bc6 Rg7 Ke8 Rg5 Ra1 g1Q Bd7 Qg2 Rg1 Qa8 Bb7 g2 Re4 Rg7 Rc1 g1Q Rd1 Qg3 Rg1 Qgg5 Rg3 Rg6 Rf3 Qg7 Bbc6 Q5f6 Bb7 Rg3
QnB1nk2/1q2N1nr/1P1N1r2/p2p4/1K2b1P1/R3pq2/2PB2q1/Bn1B1N2 w - - 0 1 legal: proof: e4 c5 a4 g5 b4 f5 g4 Bg7 f4 Be5 Ra3 Bd6 Re3 Bc7 d4 b5 axb5 cxd4 Rf3 fxe4 f5 Bg3+ hxg3 Kf7 Rf2 Ke8 Rf4 gxf4 Kd2 d5 f6 e5 f7+ Kf8 b6 h5 b7 d3 Kc3 f3 b5 h4 g5 d2 g6 a6 g4 f2 b6 e3 Ne2 e4 Bg2 f1N Rg1 h3 Na3 h2 Nb5 h1N Kb4 Qe7+ Nd6 Nf6 Ng3 e2 Bf3 e1Q Qe2 d1Q+ Bd2 Bf5 Qb5 e3 Qc6 Be4 Qe8+ Kg7 f8N Rh7 Be2 Kg8 g7 Qf2 Qc8 Qf3 Ng6+ Ne8 Qc6 Qe1 Bd1 Qef2 Qc8 Q2g2 Qc6 Nh2 Nf1 Ng3 Qc8 Nh5 Qc6 Nd7 b8B Qef7 Bc7 Nb8 Qb7 Ra7 Qa8 Rh6 Bd8 Qb7 Bf6 Rh7 Ba1 Rh6 Nh4 Rg6 Nhf5 Rf6 Nb5 Kf7 g8B+ Kf8 Nbd6 Nhg7 Rh1 Nd7 Be6 Nb8 N1g3 Nf1 Bc8 Qd7 Ne7 Qb7 Bc1 Nd2 Nf1 Nb1 Bd2 Qc6 Rh5 Rc7 Rf5 Qb7 Rf4 Bd3 Rd4 Be4 Rd3 Ne6 Ng8 Rh7 Ne7 N6g7 Ra3 a5+
2n1N1R1/4pqn1/B2Qb1K1/3P1R1P/1nP1qBpB/4b1R1/Rpkq4/3rq3 w - - 0 1 legal: proof: e4 c5 g4 a5 d4 cxd4 b4 h5 gxh5 axb4 Bd3 b5 Bh6 f5 Nc3 d5 Bf1 d3 Bg5 d4 Bc1 Ra7 Ba3 Rd7 Bc1 Rd5 exd5 Bd7 Ne4 fxe4 Rb1 Bh3 Ra1 Bc8 Kd2 Kd7 f4 Kd6 a4 Kc5 c4 g5 h4 b3 f5 Kb4 f6 b2 a5 b1Q f7 Nc6 a6 Nh6 a7 Nf5 a8R Na7 h6 Be6 h7 Ng7 Qf3 Kb3 Qf4 b4 Ra2 Nc8 Nh3 g4 Nf2 Qe8 Rh3 Qd8 Rg3 e3+ Ke1 d2+ Ke2 d1N h5 Nb2 Ne4 Kc2 Nd6 b3 Ne8 Rg8 h8B d3+ Ke1 e2 Kf2 d2 Ke3 d1Q Ke4 Qd2 Qd6 e1Q+ Be2 Nf5 Bf6 Bh6 f8R Be3 Bh4 Ng7 Rf5 Rf8 Bd1+ Kc3+ Bc2 Nd3 Rb8 b2 Ba4 Nb4+ Ke5 Kd3 Bb5 Kc2 Ba6 Rf6 Rg5 Rf1 Rf5 Qee2 Ke4 Rd1 Ke5 Qde1 Ra8 Ba7+ Be3 Q2d2 Kf4 Bd4 Kg5 Bc5 Bf4 Be3 Nc7 Qf8 Ne8 Kc3 Kh6 Qe4 Kg6 Kc2 Rb8 Nb6 Ra8 Qh8 Nc7 Qg8 Rf8 Nc8 Ne8 Qf7+ Kh7 Qf6 Rg8 Qf8 Kg6 Qf7+
1q1nBk2/2n4B/1Q2Pb1R/3rn3/Ppp2nn1/pP2B3/2RNnq2/2R1B2K w - - 0 1 illegal: No proof kernel
5KNR/Rbq1Qb1p/n2R4/2N3BP/6k1/RPpn1N2/nP1b3p/2b1n2b w - - 0 1 legal: proof: f4 e5 e4 exf4 h4 g5 Bc4 b6 Be6 b5 Bh3 g4 Ke2 gxh3 Kf2 Ke7 Ke1 Ke8 d4 a5 c4 bxc4 Ke2 Ra7 Kd2 Rb7 Ke1 Rb3 axb3 Qg5 Nc3 Qf6 Nb1 Qd8 Kd2 c5 Qf1 c3+ Ke1 c4 Qe2 Nf6 Qd1 Rg8 Qf3 Rg5 Qd1 Rc5 dxc5 Ng8 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kh5 d5 g4 a4 e5 f3 g5 d4 c6 a3 g6 f2 c7 f1B g7 c2 Qd2 h2 Qf2 d3 Qe2 c3 Nh3 d2 Qg4 d1N Ng1 a2 Qh3 Ne7 Kh6 Bb7 c8N Nec6 h5 Nb4 Ne7 N8a6 Qh4 f4 Nd2 f3 Ng8 Kf5 e6 f2 e7 Qc7 e8R Bfg2 Re7 f1B Ne4 Nf2 Nf3 Bc4 Nc5 Nfd3 Rd1 Bh1 Bg5 c1B Rd7 Bd6 Qe1 Bf7 Qe7 Bdf4 Rd6 Ne1 R1d4 Nbd3 Ra4 Bfd2 Ra3 Bc4 Nf6 Bf7 g8R Nb8 Rc8 Na6 Ng8 Kg4 Kg7 Nf2 Kf8 Nfd3 Rb1 a1N Rcd8 Nac2 Rba1 Ncb4 Rc8 Nb8 Ra7 N8a6 Ra3 Na2 Kg7 Nf4 Nh6+ Kh3 Rh8 Nfd3 Ng8 Kg3 Kf8 Kg4
1KNb2bq/5pP1/br1PpNP1/4pR1R/2k4b/R2n1NQ1/2Bpq3/3N1n2 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 d6 h4 Bg7 e4 Kd7 f4 gxf4 d5 Ke8 g5 Bf8 Be3 Ra7 e5 dxe5 Bd4 Ra6 h5 Rg6 hxg6 c5 Rh6 cxd4 Rh4 Nd7 Rh1 Nb8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 c4 h5 b6 a4 b3 h4 d6 f3 g7 f2 b7 d3 Nc3 d2 Qh5 h3 Qh4 h2 Qg3 a3 Bd3 f1Q Nd1 a2 Nf3 Nd7 b8N Nh6 Bc2 Nf5 Rb1 Kb4 Kd5 a1B Kc6 e6 c5 Bc3 Ra1 Qg2 Ra3 Ne3 Rf1 h1B Rf2 Qe8 Kc7 Be7 c6 Nc5 Nd7 Ba6 Nf6 Nd3 Rf1 Bd8+ Kb8 Bd4 c7 Qe2 c8N Kc5 b4+ Kc4 Rf2 Nf1 b5 Rh4 b6 Qh8 b7 B4b6 Nd4 Be4 Nf3 Bh7 g6 Rh3 Ng5 Ba5 Rf5 Bg8 Nf3 Bac7+ Ka7 Be7 b8R Bcd8 Rbb3 Rh4 Kb8 Rf4 Ng4 Bh4 Nf6 Rd4 Rh5 Rd5 Rb1 Rc5 Rbb3 Rc6 Rb4+ Kc5 Rf4 Kb5 Rff5 Rb6+ Ka8 Kc4 Ka7 Rc6 Kb8 Rb6+
qN2R1Q1/2pPr3/pPRP3N/3p3N/2Bq1NRK/qp3q2/1br3b1/k3n3 w - - 0 1 illegal: No proof kernel
5R2/1b1npq1k/5p1B/1qb5/2BB1Kb1/1pPqpR1P/R2nPq1N/R4Q2 w - - 0 1 legal: proof: b4 a5 a4 b5 g4 c5 g5 cxb4 g6 b3 Nh3 b4 Rg1 Ra7 Rh1 Rb7 Ng1 hxg6 Nf3 g5 Ng1 g4 f4 g5 Nh3 d5 Ng1 g3 Nc3 g4 Ne4 Rb5 axb5 dxe4 Nh3 Rh5 Ng1 Rg5 fxg5 Qc7 Ra3 Qb6 Ra1 Qd8 d4 a4 Kd2 g2 Ke3 b2 h3 b1B b6 a3 c3 b3 b7 a2 d5 g3 g6 Bg4 d6 Nd7 b8R Ngf6 Rb6 Bg7 Rb8 Kf8 Kf4 Kg8 Nf3 g1Q Ra8 g2 Ra5 Qc5 Nh2 g1Q Bg2 Qb5 Qf1 Qf2+ Bf3 Bh8 g7 Kh7 g8R Bg7 Be3 Qf8 Bd4 e3 Ra7 Qd8 Rf8 Be4 Rg1 Bb7 Rg3 Ne4 Ra4 Nb6 d7 Nd2 Ra8 Qe8 d8B Nd7 Bc7 Bf6 Bce5 Bh8 Bg7 Qd3 Rc1 a1Q Bh6 Qaa6 Ra1 Qab5 R8a2 Be5+ Kg5 Bc7+ Bd5 Bd6 Rf3 Bc5 Bc4 f6+ Kf4 Qf7
1N2Q3/4R1Pp/1k1bB3/4nbr1/qpR2ppb/N1bR3P/1bK2P1p/1N4N1 w - - 1 2 illegal: No proof kernel
2KBq3/k2np1P1/2p1pp2/3BR3/2R3pn/2Br2rB/n1P2qPQ/1R1N3q w - - 0 2 legal: proof: h4 g5 e4 a5 b4 axb4 f3 b5 e5 b3 e6 b4 Ke2 Nc6 Ke1 Na5 Bd3 Bh6 Bf5 Nc4 Bh3 Nb2 h5 dxe6 f4 Bb7 f5 Be4 f6 Bg7 fxg7 Bg6 hxg6 c6 Na3 Rxa3 Ke2 Kd7 Ke3 Kc7 d4 Kb7 d5 h5 Kd4 f6 Kc5 h4 d6 Nc4 d7 b2 Bd2 b1Q Bc3 b3 Qh5 b2 Ne2 Qf1 Re1 Qb8 d8B Ra7 a4 b1N a5 Ra8 a6+ Ka7 Qh7 Nh6 g8B Qc8 g7 Nf5 Bf7 Ne5 Bh5 Rb8 Bf3 Rb3 Bd5 Qd7 Qh5 Qe8 Rg1 Rh6 Rh1 Rg6 Qh6 Kb8 a7+ Kb7 a8R Qf2+ Bd4 Rg3 Ra4 Nc3 Rc4 Na2 Nc3 Rd3 Nd1 Kb8 Kb6 Nd7+ Ka6 Ka8 Bc3 Kb8 Bg4 h3 Re5 h2 Bh3 Nh4 Rhe1 h1Q Rf1 Nc5+ Kb6 Ka8 Kc7 Ka7 Kc8 Nd7 Ne3 g4 Qf4 Rg5 Rb1 Rf5 Qh2 Rf3 Nd1 Rg3
1r4rq/1p1rp2N/1n2P1PN/1rRR4/R1NQ3p/KPN4p/B5pn/q4k2 w - - 1 2 legal: proof: g4 c5 d4 cxd4 h4 f6 h5 g6 g5 gxh5 Bf4 h4 Bd2 Qc7 Bc1 Qd8 Kd2 Bh6 a3 Bg7 g6 Bh6+ Ke1 Bg5 Bf4 Bh6 Kd2 Bg5 Be3 Bf4 Kc1 Bd6 Bf4 Bb4 Bg5 fxg5 axb4 a5 Kd2 d5 Ke1 Bd7 Ra4 Bb5 Ra1 Ba6 b5 Ra7 bxa6 Ra8 Kd2 Kd7 Kc1 Kc6 c4 Kc5 e4 h5 f4 h3 a7 a4 e5 a3 e6 h4 f5 a2 f6 d3 f7 Kd4 f8N Ke3 c5 Kf2 c6 g4 c7 d4 c8R g3 Nf3 g2 Ne5 Nd7 Nc3 Rb8 a8N Nb6 Rc5 Nh6 Nf7 Ng4 Nh7 Rg8 Nh6 Nh2 b3 d2+ Kb2 d3 Ka3 Qf8 Qg4 d1R Qd4+ Ke1 Rd5 d2 Bd3+ Qf1 Rc1 Qg1 Be4 Kf1 Bb1 a1Q+ Ba2 Re1 Rc2 d1R Rc1 Re5 Rc2 Nd7 Nb6 Rd3 Nc4 Nb6 Ra5 Rb5 Ra4 Rgd8 Re2 Rg8 Re5 Qe1 Rc5 Qe5 Rd5 Qh8 Ne3+ Kf2 Rc5 Qb1 Rd1 Qa1 Rd2+ Ke1 Nc4 Kf1 Qf6+ Rf3 Rdd5 Rf5 Qd4 Rff8 Ne2 Rfd8 Nc3 Rd7
Kr2R2B/p6P/pk3N2/1n3P2/B2b1pnq/ppR1RP2/1p3q2/3BBqQ1 w - - 0 1 illegal: Other
n3bk1N/P1r5/1R1P1bn1/3rp3/1nq5/RN1RKBbq/bNN1Pqb1/7Q w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 d4 g5 Kd2 c5 h4 e5 f4 b5 a4 b3 f5 b4 f6 c4 a5 c3+ Kd3 g2 a6 c2 h5 c1N+ Ke4 g3 d6 b2 h6 g4 h7 b3 a7 Bg7 d7+ Kf8 f7 Ne7 d5 Bf6 Ra6 Qc7 d8N Bd7 Nd2 b1B+ Qc2 b2 Ngf3 g1Q Nh4 g2 Nhf3 g3 Rb6 Qh2 Nh4 g1Q Rb5 g2 Nc4 Na6 Nb7 Rc8 Nc5 Be8 Rb6 Na2 Nf3 Qf2 Ne1 g1B Nb3 Ng6 Bg2 N2b4 Bf3 Ba2 Qd1 b1B+ Nc2 Qh3 Nb2 Bh2 d6 Bg3 Rg1 Rg8 h8N Rg7 Qe1 Qcc5 Qc1 Nc7 Rd1 Na8 Rd3 Rc7 Qh1 Qc4+ Nbd4 Rc5 Ra3 Qe1 Ke3 Rd5 Nb3 Rh7 Ncd4 Be4 Nc2 Kg7 f8R Qef1 Bg4 Bg2 Bf3 Qe1 Rf7+ Kg8 Rc7 Kf8 Rcc6 Rc7 Rc5 Qcg4 Rc3 Qc4 Rd3 Qf2+
N1nnB3/R3Np2/5q2/2rnn2k/1R2K2b/2n2PRb/2P4P/qqrN1QrN w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 Bd2 e3 Bg2 exd2+ Kf1 c6 Bh3 cxd5 Kg2 d4 Kg3 Ba6 Bf1 Bc8 Kg2 Rh5 Na3 Rh6 Nb1 Rh8 e4 a5 b4 d5 b6 g5 b5 d3 b7 a4 e5 d4 b6 a3 e6 a2 e7 g3 Kf3 g4+ Kf4 g2 Nh3 g1R Na3 g3 Qc1 d1N Nb1 g2 Ke5 d2 Ba6 d3 Bc4 Nc3 Na3 d1Q Nf4 d2 Ba6 Nd5 Nb1 Nc6+ Ke4 Bh3 b8R Rh5 b7 Qe1+ Be2 d1N Nd3 Bg7 Nc3 Bf6 Qf4 Bh4 Qf3 Kd7 e8N Qf6 Nc7 Ke7 Qf5 Ra7 Na8 Nd8 Qf4 Qf1 Bg4 Kf8 Bd7 Kg7 Be8 Kg6 Qc1 Nge7 f3 Nc8 Nf2 Nb2 Ncd1 Nd3 Qb1 Ne5 Qb5 Ra5 Qe2 Rc5 Qe1 Qb5 Qe2 Rf1 Rg1 Rg5 Nh1 Kh5 Qc4 Rf2 Qf1 Rg8 Rb1 a1Q Rb4 Rd2 Ra4 Rd3 Ra5 Rb3 Ra3 Rb1 Ra4 Rc1 Rb4 Ncb6 Rc8 Rg7 Rc7 Nc8 b8N Qbb6 Nc6 Qb7 Ra4 Qbb1 Rb4 Rg3 Ne7 Rg5 Ra7 Rg3 Qb5 Rg7 Re1 g1N Qf1 Rg6 Re2 Rg5 Rg2 Ne2 Rf2 Rg1 Rg2 Bf2 Rg8 Bh4 Rg3 Nec3+
2n1qR2/2N5/Bp1kPK1B/r2n2rb/1r1q4/b1q1Q2b/PP3B1N/3Bn1bN w - - 0 1 illegal: No possible last move
1bNBq2B/nnR4K/b5rp/1N4BP/bbPN2b1/rB6/PQr4k/nb6 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 f4 g5 f6 Ra3 f5 Rf3 Nd2 Ra3 Rb1 Ra6 Rb3 Ra3 Rf3 Ra8 Rf4 gxf4 Ke2 Kf7 Kd3 b5 Ke4 d5+ Ke5 b3 h4 d3 g4 h6 c4 b4 h5 b2 g5 b1N Ne2 f3 Rh4 b3 Ng3 b2 Bg2 f2 Nb3 f1R Rh3 d4 Qg4 d2 Qd1 d3 Qg4 d1B Bc6 d2 Na5 Na3 Qf3 b1B Ba4 Na6 Qf4 Nc5 Nb3 Ba6 Nd4 Nb7 Nge2 Rf2 Rf3 Qe8 Bb3 Nc2 Nc3 Na1 Qh2 e6 Rd3 Bb4 Ncb5 Ne7 Qg2 Nc8 g6+ Kf8 f7 Ke7 g7 Bg4 Bb2 d1B f8B+ Kf7 g8N Na7 f6 Rc2 Ke4 e5 Ne7 Rg8 Nc8 Rg6 Be7 Bd6 Bd8 Bb8 Nf3 Ke6 f7 Rg7 Rd7 Rg6 Re7+ Kf6 Nfd4 Kg5 f8B Kh4 Qd2 Kh3 Rc7 Kg3 Qc1 Kh3 Bfe7 Kh2 Ke3 e4 Kf4 e3 Bg5 e2 Bc3 e1B Qb2 Bge2 Kf5 Bf3 Ne6 Bc6 Bh8 Bb4 Ned4 Be2 Nbd6 Ba4 N6b5 Rg8 Kf6 Rg7 Kf5 Bg4+ Kf6 Rf7+ Kg6 Rf6+ Kg7 Rg6+ Kh7 Nc6 Nc3 B6b5 Re7 Ra5 Bg7 Ba6 Rf7 B4b5 Rc7 Ra3 Bh8 Ba4 Ncb5 Na7
1Q5b/1b3R2/P1BR1BKP/nbBn4/1RN3pq/5rn1/3bk1Pr/1b1nB1n1 w - - 0 1 illegal: No proof kernel
1rr2NN1/rRP1R2n/1N1k2p1/1r3PbN/1r3nPb/Bqn5/Q1b5/Rb5K w - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 g3 fxe4 Ne2 b5 axb5 h5 Ng1 h4 Bg2 h3 Qe2 hxg2 Qg4 Na6 Qd1 Nb8 c4 a5 h4 d5 b4 Kd7 f4 e5 Kf2 g6 b6 d3 b5 d2 g4 a4 h5 a3 b7 a2 c5 e3+ Kg3 e2 Kh2 e1R h6 e4 c6+ Kd6 c7 d4 h7 d3 b6 e3 Nc3 e2 Na4 Nc6 b8N Be7 b7 Bf5 Qb3 d1B Ba3+ Nb4 Nc3 d2 Nc6 Bb1 b8R Bdc2 f5 d1N Qb2 Nf6 Qb3 Qg8 Nd5 Nc3 Nh3 g1R Rb7 Rb8 Nhf4 Rc1 Qc4 e1B Ne5 Bh4 Nb6 Bd8 Qa6 Qb3 Ned7 Rcd1 Qa4 Rd5 Nh5 Rb5 Nf8 Rd1 Qa6 Rd4 Re1 Rg8 h8N Nh7 Re5 Bdg5 Re7 Rc4 Kh1 Rc8 Bb2 Nbd5 Ba3+ Rcb4 Qa8 Nf4 Nf7+ Kc6 Nh6 Kd6 Qa7 Rb8 Nfd7 Rgc8 Nf8 Bd3 Ng8 Bbc2 Rf1 a1R Qa5 Ra2 Ra1 Bb1 Bb2 Raa4 Ba3 Bdc2 Qa6 Rc5 Qe2 Rcb5 Qh2 Ra7 Qd2+ Bd3 Qa2 Bdc2
r3k2r/6b1/1KRbPR2/n2NRb2/n1B1p3/q1PQB2r/3bP1n1/B1b1B1r1 w - - 0 1 illegal: No proof kernel
2k1nn1R/2pN3R/1b1rP1B1/NK2P1r1/3N2rR/nnP5/b2Qr1n1/1b2q1R1 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Bf4 g5 Bg3 hxg3 Qd5 g4 Qd3 Qh4 Qd1 Qd8 Kd2 g5 Kd3 b5 h4 d5 e4 Kd7 a4 b3 f4 b4 a5 b2 a6 g2 c3 d4 Kc4 b3 h5 g3 h6 d3 h7 g4 f5 d2 f6 Qe8 f7 Bc5 f8R Bb6 a7 Nf6 Nf3 g1N Qe2 d1N Ra6 g2 Rh4 g3 Rh1 Ne3+ Kb4 Bb7 Rh6 Bd5 Rg6 Kc8 Rg7 Nbd7 Qd1 Ne2 Nbd2 g1R Qc1 b1N Rfg8 b2 Nd4 g2 Ra4 Ba2 Nc4 Na3 Na5 b1B Qd2 Nc1 Bd3 Nf8 Rf7 Rb8 a8N Nb3 Rgg7 Rg8 h8R Re1 Rg5 g1R Rfh7 Rg4 e6 Qd7 e5 Re2 Bg6 Ne8 Re7 Ng2 Reh7 Rf4 Rg3 Qc6 Rg4 Qe4 Rgh4 Rf5 Rh1 Rg5 Rg1 Nc2+ Kb5 Qh4 Nf5 Qe1 Rah4 Rb7 Nd4 Rg4 Be4 R8g5 Bd3 Ra7 Bg6 Ra6 R7h5 Bc5 R5h7 Rd6 Nb6+ Kd8 Nd7 Bb6 R4h6 Kc8 Rh4 Na3+
1B4nR/P1bb1KrB/NNN5/3rpP1r/1QBnP2N/qr6/rqk1b2b/8 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Ra3 f4 Re3 fxe3 Ke2 Kf7 Kf3 Kf6 Kf4 c5 d4 b5 g4 h5 a5 h3 d6 c4 d5 h2 f3 c3 a6 e2 d7 e1R d6 h4 Bh3 c2 Be3 c1B Nd2 b3 Ba7 b2 Bb6 b1Q Qe2 b4 Bc5 b3 Qf2 b2 Ba7 Qa5 d8N Nc6 d7 Rh7 Qc5 Rg7 Nb7 Nd4 d8N Rd1 Nc6 Bd7 Bf1 h3 Qb4 Qa3 Nc5 e6 Bb8 Bd6+ Ne5 Bc7 g5+ Ke7 g6 Kd6 Nc6 e5+ Kg5 Qc2 f4 b1R f5 Rb3 Nd8 Qcb2 Nf3 Ra7 Nh4 Ra8 Rg1 h1B Bc4 h2 Nc6 Bf3 Rg2 h1R Rh2 Be2 Rh3 Rh7 g7 Rh5+ Kg6 Rhg1+ Kf7 Rgg5 Nf1 Bf4 Ne3 Bh2 Nd5 Ra7 Nb6 Rg2 Qe1 Rb7 a7 Rd2 Na8 R7b5 Na6 Rd5 Nb6 Rc2 Nab4 Kc5 Qb1 Qc3 Qe1 Ra2 Qb1 Qcb2 Qe1 Ne7 g8B Rg6 Bh7 Ng8 Qc3 Rg7+ Kf8 Rgg5 Na6+ Kd6 Kf7 Rh6 Bg6 Rg4 Ng2 Rg5 Nab4 Kc5 Qd2 Rh4 Qe1 Rhg4 Rh8 Rh5 Nh4 Rg1 Bh7 Rg7+ Kf8 Nb5 Ne7 Kd4 Na6 Ke3 Qb4 Nd4 Nc6 Qc1 Qc5 Kd2 Qd6 Kc2 Qb4 Rg6 Kf7 Qcb2 Qe7 Rg1 Qb4 Rg7+
8/2P3Rb/2Q2KN1/1qbbqPrq/RqnNp3/4P1Rq/Rn3k2/b4BNr w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Bg5 f5 Bh4 f4 Bg3 fxg3 Bh3 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 f4 g5 b4 d5 c4 a5 c5 g2 b6 g3 e3 a4 h3 g4 b7 a3 b5 d3 b6 d2 c6 d4 c7 a2 Ne2 g1Q Qc1 d1Q Nbc3 g2 Nb1 g3 Qc3 d3 Nd2 Na6 b8N Nc5 b7 Qd7 Qb2 Qh2 Qb3 g1Q Qb5 g2 Nc1 Kg3 h4 Nf6 h5 Nfe4 h6 Qhh3 h7 Ra5 Qa4 Kf2 Qc4 Na4+ Qc5 Nb2 Nc6 Nd6 b8R Ndc4+ Ke4 e5 Rh2 Qdh5 Nd4 Bb7+ Qc6 Bc5 N2f3 d2 Nh4 d1B Ng6 Qde6 Rg8 Bc2+ Bd3 Ba8 Nce2 Qe1 Ng1 Qb4 Rg7 Qe8 Kd5 Qeb8 Bf1 Q8b5 Nf5 Be4+ Ke6 Bd5+ Kf6 e4 Nd4 Bg8 Rc1 a1B Rc3 Bb7 Ra3 Ba8 Ra4 Bb7 Qb6 Bbd5 Qc6 Ke1 Nge2 g1Q Rf2 Qgg3 Ng1 Bge6 Rf3 Bf5 Ra2 Qgh2 Rg3 Kf2 Ra4 Rc8 h8R Rd8 Ne7 Bh7 Ng6 Re8 Rf8 Re5 Ra8 Rg5 Ra2 Ra3 f5 Rd3 Ngf3 Rd1 R8a4 Re1 Bd3 Rh1 Bf1 Nb6 Ng1 Nc4 Rg4 Qf4 Rg3 Qe5+
qBq2Q2/1q2nNpR/nrkB2PN/bn5r/1Pr1P3/1K3b1q/1NB5/1n5B w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 e5 d4 cxd4 f4 exf4 g5 Qa5 Ra3 Qb6 Rg3 Qd8 Rg4 hxg4 Kd2 a5 h4 d5 e4 Kd7 c4 f5 Kc2 a4 g6 f3 c5 g3 h5 g2 b6 d3+ Kc3 d4+ Kb2 a3+ Kb3 f2 h6 f4 h7 d2 b7 f3 Rh5 d3 Rh2 a2 Rh5 a1Q Rh4 Be7 Qc2 d1Q Nd2 Ra6 Nb1 d2 Bd3 f1N Kc4 f2 Na3 Kc6 Nh3 g1R Kb3 Bg4 Nc4 Rb6 Nb2 Bf3 Ng5 Qa8 Nf7 Qc8 Nh6 Na6 b8B Bd8 Rh2 Qe2 Rh1 d1N Bcf4 Qab7 Bfd6 Ne7 Qd2 Rg2 Bc2 Nc3 Qf4 Nb5 Qf8 Qe1 Rh5 Qa1 Rh3 Rg5 Rh1 Rg8 h8N Rh5 Rh2 Qb1 N8f7 Nd2+ Ka4 f1Q Rh1 Nc4 Kb3 Nca3 Rh2 Qa1 Rh1 Nb1 Rh3 Kd7 c6+ Ke6 c7 Kd7 Rh2 Qh3 Rh1 Kc6 Rh2 Qcd7 c8B Qdc7 Be6 Qcc8 Bc4 Rh8 Bf1 Rc5 Bg2 Rc4 Bh1 Rh7 Ng8 Rh5 Ngh6 Nac7 Rg2 Qaa8 Rg4 Na6 Rh4 Rg5 Ng4 Bc7 Rh7 Rh5 Ngh6 Nd4+ Ka2 Rbb5 Qh8 Ba5 Qg8 Rb6 Qf8 Nb5 Kb3 Qaa7 Nd1 Qba8 Nb2 Q7b7
2bR2q1/1bp1P3/2kn1N1B/1q2q1Q1/r4b1r/BRB4n/2PR2nP/bn2KB2 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Bg2 exd4 Nd2 f5 Ne4 f4 Ng3 fxg3 Bh3 Nf6 Bf1 Ng8 b4 a5 f4 d5 e4 Kd7 f5 g5 f6 g2 e5 a4 f7 a3 b6 a2 b7 d3 e6+ Kc6 e7 d2+ Ke2 d4 Nf3 g1N+ Kf2 d3 Rb1 a1B Bg2 g3+ Kf1 g4 Bh3 g2+ Kf2 g3+ Ke3 Ra4 Ba3 Bh6+ Ng5 Qd5 f8B Qb5 Be6 Nh3 Bc4 g1Q+ Kf3 g2 Ne4 Qgc5 Re1 g1Q Qc1 d1B+ Re2 d2 Rb3 Na6 b8B Bf4 Bh6 Nf6 Ba7 Ne8 Nf6 Qe5 Bd4 Qg8 Bc3 Nd6 Bd3 Nc5 Bc4 Ng1+ Kf2 Nce4+ Kf1 Bb7 Rf2 Bf3 Rg2 d1N Ke1 Nh3 Bf1 Ba6 Qe3 Bb7 Rd2 Bg4 Qg3 Ne3 Qg2 Bgc8 Qg5 Qa6 b5+ Kb6 Rg2 Nd2 Rf2 Nb1 Rd2 Ka7 b6+ Ka8 Bg7 Rh4 Bf8 Qab5 Bh6 Bc6 b7+ Ka7 b8R B6b7 Rd4 Kb6 Rd2 Kc6 Ra8 Bf5 Rf8 Bfc8 Rd8 Ng2+
5q1k/2q1p1Nr/pn2BQ2/P6R/nrqR2rn/R1P1KN1b/1b1bRP2/3N4 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 Ke2 Kf7 a4 b5 h4 g5 d4 Kg7 d5 e3 d6 a6 h5 b4 c6 g2 d7 b3 a5 g3 c7 b2 Qc1 g4 Kd3 e2 Nh3 e1B Qd2 g1R Ng5 g2 Nf3 g3 Ra2 Nh6 Ra4 Rh7 Rah4 Kh8 Rg4 Nf5 h6 Bg7 Qc3 Nh4 Qf6 Qf8 d8N Nd7 Ke3 Nb6 Bc4 Rb8 Rd4 Bh3 Nc3 b1N Nd1 Nc3 c8R Nca4 Be6 Rb7 Rc3 Rb8 Qg6 Bf6 Ra3 Be5 Rd7 Bb2 c3 Na8 Rd6 Bd2+ Kd4 Rf7 h7 Rb4+ Kd3 N8b6 Qh5 Kg7 h8R Rff4 Bd7 Rf7 Rh7+ Kg8 Qf5 Rg7 Rhh6 Rh7 Rh5 Kh8 Qc5 Re1 Qc7 g1Q Qc5 g2 Qg5 Qh2 Ne6 g1Q Rd4 Re4 Ng7 Rg4 Be6 Qc7 Qf6 Qg2 Re1 Qf1+ Re2 Be1 Ke3 Qg2 Red2 Qf1 Rc2 Qfc4 Re2 Bd2+
1rb2Nn1/3q1P1q/1Pr2p2/1R1RBQ2/Kq6/1r1N2p1/1b1R1Pn1/2Nn1bNk w - - 0 1 illegal: No proof kernel
n7/1p1k1b2/4qBNb/P3KNb1/2P1b1pN/2n1n1Pq/R1B1r3/rb1BQ2N w - - 0 1 legal: proof: b4 e5 d4 c5 a4 cxd4 f4 a5 fxe5 axb4 Ra2 h5 Ra3 h4 Rf3 h3 g3 Qe7 Rf2 Qd8 Rg2 hxg2 Kf2 f5 Kf3 d5 Kf4 g5+ Kf3 f4 h4 b3 e4 d3 c4 d2 h5 b2 e6 d4 e5 d3 Ke4 f3 e7 f2 h6 g4 h7 Be6 Be2 f1Q Qe1 d1B Rh6 d2 Nh3 g1B Nf2 Bf7 Nh1 Nd7 Rh2 Qb6 a5 Be3 Bd3 Qh3 Bc2 Bf3+ Kf5 d1N Nd2 b1B Bb2 Bg2 Nf3 Ngf6 Nh4 Bfh6 Bc3 Rf8 h8N Nd5 N8g6 Beg5 Bb2 N5c3 Ba1 Nb8 Bb2 Kd7 e8N Bc6 Nd6 Na6 Rf2 Rae8 e6+ Kc7 e7 Kd7 Rd2 Nc7 Ke5 Na8 Ndf5+ Bcd5 Rg2 Ne3 Bd1 Bde4 Ba1 Rc8 Ra2 Rc6 Bc2 Rd6 Bb2 Rd2 Ba1 Re2 e8B+ Kc8 Bc6 Rd8 Be8 Rd1 Bea4 Rc1 Bab3 Kd7 Bd1 Bbd3 Bb2 Ra1 Bbc2 Qa6 Ba3 Qb6 Be7 Qc6 Bf6 Qb6 Bb3 Bb1 Bbc2 Qe6+
r1n5/B2PqR1N/3Bbp2/2K1p3/1BQ1Pb1q/4nNrN/2NbbP2/2k1qb2 w - - 1 2 legal: proof: b4 d5 c4 c5 a4 g5 h4 gxh4 b5 b6 e3 Be6 a5 Bc8 Ra4 Bb7 Rb4 Bc8 axb6 cxb4 c5 Nc6 Be2 Nb8 Bc4 dxc4 Ke2 Kd7 g4 Ke6 d4 Kd5 c6 Ke4 c7 a5 d5 h5 b7 e5 d6 f6 b6 b3 g5 a4 g6 c3 g7 h3 Bd2 c2 Qc1 h2 Qb2 c1B Ba5 h4 Qc3 b2 Na3 b1B Qb2 h3 Qa2 Nc6 b8B Be6 c8N Nge7 g8N Bh6 b7 Nb4 d7 Nc2 Bbc7 Bf4 b8B Bd2 Nb6 Nc8 Ne7 Rg8 Ng6 Qe7 Nf8 Rg3 Qb3 Ba2 Nf3 Bg4 Qc3 Bae6 Nd5 Bh5 Rg1 h1B Bb4 h2 Ba7 Bg2 Nh7 h1Q Bcd6 Qh4 Qb3 Ne1 Nc2 a3 Rh1 a2 Rh2 a1Q Qc4+ Kf5 Rh1 Bh3 Rh2 Ng2 Kd3 Qe1 e4+ Kg4 Rh1 Ne3 Rh2 Bg5 Nf4 Bg2 Nh3 Bf4 Nfg1 Bf1+ Ne2 Kf3 Rg2 Rg8 Rg7 Bhg4 Rf7 Bh5 Qc5 Rg3 Qb5 Nd5 Kc4 Ne3+ Kc5 Bhg4 Qc4 Bh5 Nc1 Bhg4 Nd3 Ke2 Qc3 Kd1 Qc4 Qe2 Nde1 Kc1 Nf3 Qe1 Nfg5 Bd1 Nf3 Bde2
1N1r1Q2/1n3K2/1P1n1Np1/2NnpbP1/r1r4b/kqRRPn2/4q2n/N2RB3 w - - 1 2 legal: proof: f4 c5 a4 b5 d4 cxd4 axb5 g5 e3 gxf4 Bd3 Qc7 Bf5 Qd8 Bg6 hxg6 Kd2 d5 Kd3 Kd7 c4 Kd6 g4 Kc5 h4 Kb4 b3 a5 h5 f5 c5 e5 h6 f3 h7 a4 b6 f4 b7 f2 c6 f1N c7 f3 Ra2 f2 Nc3 a3 Bd2 Nh6 Rh3 Nf7 Qf3 Nc6 b8N Be7 Rg3 Na5 Nge2 Qg8 Nc1 Nb7 Rg1 Bh4 Rc2 a2 g5 a1R Na4+ Ka3 Nc5 Ra4 b4 Bh3 N1b3 Rc1 Rc4 Nh2 Na1 f1N c8N Rc2 Qf4 Nf3 b5 N1h2 Nd6 Be6 Qf6 Bf5+ Nde4 Rc1 b6 Rc2 Rb1 Rc1 Be1 Rc3+ Ke2 d3+ Kd1 d2 Ke2 Rc1 Kd3 d1N Qe7 d4 Qd6 Bd7 Nf6 Rc3+ Ke4 d3 Kd5 d2 Qe7 Bf5 Qe8 Be4+ Ke6 Bf5+ Ke7 Rc2 Qc8 Nc3 Rc1 d1Q Qd8 Qd3 Rd1 Qe2 Qe8 Qg7 Qc8 Rf8 h8R Qg8 Qd8 Nfd6 Qe8 Nde4 Qf7 Rc8 Qg7 Qd5 Rd8 Rc1 Rd7 Rd8 Qf8 Qdd3 Rdd4 Nd5+ Kf7 Qb3 R4d3 Bg4 Rc2 Bf5 Rb2 Rc3 Rc2 Rcc4 Rcc3 Ned6+
nQR1qB2/bp6/n2Pp3/rP1B2P1/3q3R/kr2nBB1/bnK1n3/R2Nq3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 fxe4 Na3 d5 hxg5 dxc4 b5 Qd7 Nc2 Qd8 Nb4 axb4 a4 Kd7 f4 Kd6 d4 h5 Kd2 c5 g4 h4 d5 c3+ Kc2 c4 g6 Kc5 g5 e3 g7 b3+ Kb1 Kb4 f5 b2 a5 c2+ Ka2 b1N Kb2 e2 a6 e1Q a7 c3+ Ka2 h3 f6 h2 f7 Nd2 Bc4 Nf6 g8B Ne8 Qh5 Na6 Bh7 Nec7 Bb2 Qe8 Qg4 Nf1 Bf5 c1N+ Kb1 Rh3 Bd7 Nd3+ Bc1 Nb2 Bc6 Ne3 Qg3 Be6 Ne2 Bg7 f8B Bd4 Ba2 Ka3 Qf4 Bg8 d6 Bc4 Bf3 e6 Qf6 Qf2 Qh8 Qh4 Bd2 c2+ Kc1 Bc5 Nc3 Qd4 Nd1 Bd5 Be1 Bb6 Rf1 h1Q Bg3 Bc4 Rf2 Qe1 Rh2 Bd5 Bb1+ Ba2 Rh1 Rc8 a8R Ba7 Qg8 Rd8 Rc8 Na8 Bd5 Rh7 Qh8 Rc7 Rh4 Rc3 Qg7 Rb3 Qc7 Rd7 Qb8 Rc7 Bg2 Rc4 Bf3 Ra4 Bd5 Ra5 Bf3 Qg1 Bd5 Qf4 Kd2 c1N Bbe4 Ne2 Bh1 Ng4+ Kc2 Qe1 Bhg2 Qd4 Bgf3 Ne3+
nB2n1Bb/pP4N1/6bR/2B1nq2/PRRb4/k3K2b/1r2Pp1r/Bq2Q2b w - - 0 1 legal: proof: f4 b5 g4 h5 d4 e5 g5 b4 Na3 b3 Nc4 exd4 Ne3 g6 Ng4 hxg4 f5 gxf5 cxb3 f4 b4 Ne7 b5 Ng8 Kd2 Ke7 b4 Kd6 a4 c5 h4 f5 g6 f3 g7 f2 b6 d3 b7 c4 h5 c3+ Ke3 c2 h6 f4+ Kd2 f3 b5 Kc5 b6 Kb4 h7 d5 Rh5 d4 Nh3 g3 Rc5 g2 Ng1 Na6 b8B Qg5+ Bf4 Rb8 Ra5 Nc7 Qe1 Bh3 Bb2 c1B+ Kd1+ d2 Kc2 d3+ Kb1 Nf6 g8R Na8 Bh2 Qf5 Bd4 Bg7 Ra6 Bb2 Rc8 Ne8 Bc5+ Kb3 Bc7 d1B Ra2 Bbf6 Kc1 Bc2 Kd2 Bc3+ Ke3 d2 B7d6 Rb7 Bb8 d1Q Ra3+ Kb2 Rb3+ Ka2 Rc6 Qb1 Rb4 Ka3 Rc8 Qf7 Rc7 Bg6 Rc6 Qff5 Rc8 Rd7 b7 Rd2 Re6 Rb2 Rec6 Bg4 Nh3 g1N Ng5 Bh3 Bg2 f1B Ne6 f2 Bd5 Bfg2 Rd6 Bge5 Ng7 Bh1 Bg8 Nf3 Rdc6 Bf7 Rh6 Bg6 Bd4 Bf6 Rcc4 Ne5 Bd5 Rf8 Bg8 Rf7 h8B Re7 Nh5 Rh7 Bg7 Rh8 Bf8 Rh7 Bfc5 Bh8 Ng7 Rd2 Be7 Bb2 Ne6 Bf1 Ng7 Ba1 Rh4 Ra2 Rf4 Rh2 Rh4 Bh3 Rh6 Bc3 Qf1 Be1 Ba1 Rb2 Bc5 Bc3 Qe1 Bd4+
3b2k1/p2rrq1r/Qnb1BB2/rP2N3/1B2nb2/P2qPN1p/2r4R/1N1N3K w - - 0 1 legal: proof: h4 b5 d4 e5 dxe5 g5 g4 gxh4 b4 f6 a3 Bh6 g5 Bg7 g6 Bf8 c4 bxc4 b5 c3 g7 c2 Nd2 Ke7 Rh3 Kf7 Rh1 Ke8 Nb3 c5 Rh3 h5 Rh1 d5 Bh6 h3 Na5 h4 Bf4 h2 Nc4 h3 Nd2 c4 Nb1 c3 e3 Ne7 Qh5+ Ng6 Nd2 Bc5 Rd1 Be7 Nb1 Bf8 Qf3 Ne7 Rd2 Ng8 Qe2 Kd7 Qd1 Ke8 Ke2 f5 Bg3 f4 Kd3 f3 Re2 fxe2 f4 Kf7 f5 e1B Ke2 c1R Kf3 d4 f6 c2 Qd2 d3 Qa5 d2 Qa6 d1R Bf4 Be7 Bg5 Bg3 Bc4+ Qd5+ Ke2 Bd7 Nf3 Bf4 Kf2 Bc6 Ba2 Nd7 e6+ Ke8 Bc4 Bd8 e7 Kf7 e8N Nb6 Nc7 Rh7 Bb3 Qc4 Nd5 Qd3 Bc4 Rc8 Ba2 Rc7 Ndc3+ Qc4 Bb3 Rdd7 Nd1 Re7 Ba2 Rcd7 Bh4 Nh6 g8N Nf5 Bb3 Nd6 Nh6+ Kf8 f7 Qd3 Ng4 Ne4+ Ke1 Kg7 Nge5 Kf8 Be6 Kg7 Rf1 h1Q f8B+ Kh8 Rg1 Qg2 Rh1 Qg6 Bg5 Qf7 Rh2 Kg8 Bh4 Re8 Bb4 Ree7 Nbd2 Rb1 Bf6 Rb2 Nb1 c1R Bf5 Re2+ Kf1 Rc4 Kg1 Rec2 Kh1 Rcd4 Be6 Rdc4 Ba5 Ra4 Bb4 Ra5
1rnnKbR1/RQ1p4/R2BNrR1/nqPP4/B2n2b1/1nP4n/kp6/B1n5 w - - 0 1 legal: proof: f4 a5 g4 c5 b4 e5 bxc5 exf4 Nc3 h5 Nd5 hxg4 Nb4 axb4 Kf2 Ke7 h4 Ke6 a4 Kd5 d4 Kc4 d5 b5 a5 g5 a6 f5 h5 b3 c3 g3+ Kf3 b2 h6 b1N h7 b4 a7 b3 Nh3 g2 Qd2 g1N+ Kg2 g4 e4+ Ne2 e5 f3+ Kf2 g3+ Ke3 f4+ Ke4 f2 Kf5 f3 Kg6 g2 Kf7 g1N e6 Qb6 e7 Qb5 e8R Ne7 Ra3 Nbc6 Ra6 Rb8 a8R Nd8+ Kf6 Na3 Rh2 Nc2 Qh6 Nd4 Ra1 Ba6 Bb2 Nc8 Nf4 Nh3 Ra7 Rg8 h8B Rg6+ Ke5 Rf6 Rg2 Bg7 Ra3 Bf8 Ba1 b2 Ra4+ Kb3 Ne6 Nc1 Rg6 Rb7 Bd3 f1N Ra2 f2 Bc2+ Kc4 Bg7 Nd2 Ba4 f1N Qf4 Ne3 Qh2 Be7 Rg8 Rb8 Bf8 N2b3 Qc2 Nef5 Ra3 Na5 Qd1 Ndb3 Qg4+ Kd3 Qb4 Kc2 Ra2 Kb1 Ra3 Qc6 Qb7 Be2 Ra2 Bg4 Ra6 Nfd4 Ra7 Rf3 Ra6 Bg5 Bd6 Qb5 Ra3 Bf4+ Kf6 Rf2 Kg7 Rf1 Kf8 Bh6+ Ke8 Bf8 Ra8 Rf6 Ra7 Nd2 Bd1 N2b3 Ra2 Nac6 R2a6 Nca5 Bc2+ Ka2 Bd1 Nd2 Ba4 N2b3
b2br2r/3nPpN1/q2rQNB1/n2Kpq1P/6bB/r3P3/kBnB3R/4N3 w - - 0 1 illegal: No proof kernel
nN2R1b1/5kp1/1B1P1b2/r5nr/qNrnpNP1/2b1qBB1/1P3B2/1Kb1Q3 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ra2 h5 Ra3 h4 Rg3 hxg3 f4 a5 d4 e5 Kd2 c5 Kc2 e3 h4 g2 f5 e4 h5 a4 d5 c3 h6 a3 h7 c4 f6 e2 d6 e1B b6 a2 b7 a1Q Be2 Be7 Nh3 g1N Bf3 Na6 b8B Kf7 Ba7 Ne2 Nf4 Be6 Bf2 Nh6 Na3 Qb6 Bce3 Nc7 Bc5 Bd2 Qe1 Ra5 Bcd4 Qa7 Bb6 Na8 Rh5 Qa2 Re5 Qb3+ Kb1 Nd4 Nc2 Qa4 Nb4 Bd5 Na2 Bd8 Re8 c2+ Ka1 c1B Kb1 c3 Nb4 Nhf5 Bg3 Ne6 Bgf2 Ng5 Bg3 Rf8 Bbf2 Qe3 h8N+ Kg8 Nhg6 Nd4 Ne7+ Kf7 Nec6 Rh8 Nb8 Rh5 Nfd3 Kg6 f7 Bf6 f8B Kf7 Nf4 Ba2+ Ka1 c2 Be7 Bc3 Bd8 B1d2 Qb1 c1R Bb6 Rc2 Qe1 Bc1 Re6 Kf8 Re5 Bg8+ Kb1 Kf7 Re6 B3d2 Re5 Rc4 Re8 Bc3
b1q5/bNnRpp2/2b3k1/2n1b1B1/2P1P3/q1BB1P2/NrN2qr1/KQ1N1n2 w - - 1 2 legal: proof: b4 g5 a4 c5 h4 gxh4 Ra3 b6 d4 b5 axb5 cxd4 c4 Qb6 Rf3 Qd8 Rc3 dxc3 g4 a5 e3 h5 b6 d5 g5 h3 g6 d4 g7 a4 b7 d3 b5 h2 b6 h4 Nf3 d2+ Ke2 a3 Ng1 a2 Nh3 a1B Ng1 h3 Na3 c2 Bb2 c1Q Qc2 d1N Qb1 Nd7 Kd3 Rb8 Ne2 Ngf6 g8N Bg7 Nc2 Kf8 Bc3 Nd5 Nh6 Qa3 Nf5 Nc7 Nc1 Rg8 Na2 Be5 Kd2 Bb2 Bd3 Rg2 Rg1 h1Q Rf1 Ra8 b8B h2 b7 Nc5 Ba7 Bd4 b8N Qg1 Nc6 h1B Na5 Bd7 Nb7 Bc6 Re1 Qc8 Bb8 Nd5 Bf4 Nc7 Bg5 Ra4 Re2 Rb4 Re1 Ba1 Rf1 Rb2 Kc1 Kg8 Re1 Kh7 Re2 Rg3 Rd2 Bhd5 f3 Kg6 e4 Ne3+ Rd1 Nf1 Nfe3 Qf2 Rd2 Rg2 Nd1 Be5 Be2 Be6 Rd7 Bed5 Bd3 Bd4 Na5 Ba8 Nb7 Bc6 Be1 Rb5+ Qb2 Nb3+ Kb1 Ba7 Qc1 B1d4 Bc3 Nc5+ Ka1 Be5 Qb1 Rb2
NnN1n1R1/1Pr1bN1N/2q1RQ2/KP1kpqrn/1B5q/1b1pr3/4PR2/6r1 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 Kd2 Kf7 h4 Ke6 b4 g5 f4 a5 c4 d5 h5 a4 h6 a3 b6 a2 b5 g3 h7 d3 Kc3 d2 Kb4 d4 c5 g4 f5+ Kd5 b7 e5 f6 d3 f7 Qh4 Ba3 Be6 Nh3 g1N Qe1 d1Q Nd2 g2 Qf1 g3+ Qf4 Qc1 Nc4 Nf6 Rh2 Ne8 Ng5 Nh3 Qf6 g1R Rf2 Be7 f8R g2 Rg8 Qf1 Rc1 a1Q Rc3 Nf4 Nb6+ Kd4 Rc1 Bb3 Rc2 Ra6 Na8 Rc6 Ka5 Rc7 c6 Qac1 Bb4 Kd5 Ra2 Nh5 Ra4 Rd7 c7 Qc6 c8N Rc7 Ra1 Rh1 Ra2 g1R Rc2 Rh3 Rc4 Qd7 Rc6 Re3 Re6 Qc1 Rg6 Rf8 h8N Qcc6 Nh7 Rg8 Rg3 Rg5 Nf7 Rf5 Rg6 Rfg5 Rg8 Bc5 Re7 Qf5 Re6 Be7
1bqq2Rn/R1npq3/prR1b2P/1r2N1P1/2B2Q2/4Rb1k/P2N2N1/Kb1n4 w - - 0 1 legal: proof: f4 c5 g4 h5 b4 e5 bxc5 g5 d4 exd4 Be3 gxf4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kc1 Ke6 Kb2 f5 e4 b5 h4 g2 c4 d3 c6 f3 e5 f2 c5 f4 g5 Kf5 h5 f3 e6 Kg4 e7 b4 e8N b3 h6 d2 c7 Na6 c6 Rb8 Nh3 g1Q Be2 f1Q Bd3 Bb7 c8R Qe1 c7 Qee7 Bf1 Qgc5 Qc1 f2 Bg2 f1B Nf4 Bc4 Nd6 Be6 Nf7 Bf3 Re1 Rb6 Ra8 Rb5 c8R Nc7 Re3 a6 Ra7 Qc4 Na3 d1N+ Kb1 b2 Ne5+ Kg3 Bf1 Rb6 Ng2 Kh3 Qd2 Qc6 Qf2 Qb7 Rb8 Qbc8 Nac4 Rb5 Nd2 Bg7 Ng6 Be5 Bc4 Bh2 Ne5 Bg3 Kc2 b1B+ Kc1 Qc5 Rba8 Ne7 Rb8 Ng6 Rba8 Bc6 Qf4 Qce7 Rb8 Bf3 Rba8 Bbf5 Rb1 Rb6 Rb5 Re8 Rc5 Nh8 Rc6 Bg6 Rb8 Rf8 Rba8 Rf5 Rb8 Nb2 Kb1 Nd1+ Ka1 Bh7 Ng6 Rfb5 Ne5 Bb1 Nf7 Qb7 Nb3 Na8 Qd4 Qdc7 Rg8 Qcd8 Nd2 Bb8 Ne5 Qbc8 Qf4 Nc7
b2nR3/3BQr1K/1Rn1B1P1/p5b1/3bnp2/R2b2r1/P2bn1PB/1N1k2qR w - - 0 1 legal: proof: f4 b5 h4 d5 c4 bxc4 f5 g5 hxg5 d4 Nc3 dxc3 f6 exf6 Rh5 f5 Rh1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 d4 Kb4 g6 a5 e3 c5 b3 f5+ Ke5 h5 e4 f3 d5 c2 d6 Kc3 b4 h4 b5 f2 b6 h3 d7 h2 b7 Ne7 Kf6 Rh3 e5 Bg7+ Kf7 Rg3 e6 Nec6 e7 Qb6 Kg8 Bd4 e8B Ra7 Be2 f1B Be3 c1B d8R Bd2 Rd6 Nd8 Re6 Nbc6 b8R Rf7 Re4 Bb7 Bf2 Ba8 Bh5 Bd3 Qe2 Kc2 Rd1 c3 Bg4 c4 Bd7 Qb1 Nf3 Qb6 Rhe1 h1N Bg1 Nf2 Re8 Ne4 Bh2 Qb1 Rf1 Qb6 Rf2 Qb1 Rh1 Qg1 Qe3 Kd1 Rb6 c2 Qg5 c1N Qe7 Bg5 Nd2+ Ne2 Nb1 f4 Rf3 c3 Bge6 c2 Re3 c1B Rf3 Bg7 Kh7 Bd2 Re3 Ba6 Rc3 Bd3 Ra3 Bd4+
1B1rkb2/1nqb2pN/p1P2BR1/2N1B2r/4Q3/1KB3P1/Prr3b1/b2n2Nr w - - 1 2 illegal: No possible last move, all moves rejected
2bR1bnk/1B2Q2p/r1B1q3/3nP3/2rPB1K1/2R1nRBp/5N1P/b2b1rr1 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 e5 Nc3 exf4 Ne4 g6 Ng3 g5 Nf5 Ra6 Nh4 gxh4 Nh3 Ra4 Ng1 Ra8 Kf2 c5 Kf3 b5 a4 f5 e4 Kf7 d4 Kg7 g4 b3 e5 c4 a5 c3 g5 c2 a6 b4 d6 b2 d7 b1R g6 b3 a7 b2 Be3 c1B Ra5 h3 Rd5 Qf6 d8R Nc6 Bb5 Nce7 Qa4 Qe6 Rc5 Nd5 Qa2 Bd2 Rc1 Bc3 Bf2 Ra1 Bh4 b1B Ne2 Bc2 Bg3 Bd1 Bc6 Rb1 Qc2 Ba1 Qc5 Rb4 Rf1 Rc4 Kf2 f3 Rc3 f4 Nc1 Ndf6 Nd3 Nd5 Ke1 f2+ Kd2 f3 Qe7+ Kh6 g7 Kg6 Rh1 f1R Nf2 Rb8 a8B Rb6 Kd3 Ra6 Ke4 Kh6 Bab7 Kg6 Ng4 f2 Rf3 Rg1 Rc3 f1N Nf2 Rg2 Rf3 Nfe3 Re1 Nf5 Ree3 Rg1 Rc3 Ngh6 g8B Rf1 Bf7+ Kg7 Bg6+ Kg8 Qg5 Kg7 Qh4 Rg8 Qg5 Kh8 Qe7 Nde3 Kf4 Nd5+ Kg5 Rg7 Kh5 Ng8 Kg4 Ra2 Kg5 Ra6 Kh5 Nfh6 Be4 Nf5 Bh4 Rg2 Bg3 Rgg1 Kg4 Nfe3+
k1nQ2nB/r5b1/3R1n2/3rbpK1/1P1N1P1r/5Br1/Np2B1P1/nN3Bqb w - - 0 1 illegal: No proof kernel
3b1n2/1b2PR1p/1r1q1p2/1NR1NP1k/2KQrr2/3bBbRP/4N2N/3n1nr1 w - - 0 2 legal: proof: f4 e5 a4 b5 d4 exd4 e3 g5 Be2 g4 Bf3 gxf3 axb5 c5 b4 cxb4 Kd2 d5 Kd3 a5 g4 b3 c4 f2 b6 f1B+ Ne2 b2 e4 a4 c5 f6 b7 Kf7 e5 Kg6 e6 a3 h3 a2 c6 Ra4 c7 Qd6 g5 Nd7 b8R Ne7 f5+ Kh5 g6 Bb7 Na3 b1R c8N Rb6 Rb1 a1R g7 Rab4 g8N Rc4 Kd2 d3 Rg1 d4 Rb5 Nd5 Nh6 Be7 Rc5 Ne3 Ng4 Nf8 Rg3 Bd8 Nh2 Rg8 e7 Rg4 Ra8 Re4 Na7 Rab1 N7b5 Rcb4 Ke1 d2+ Kf2 d3 Nc4 Ra4 Ne5 Rac4 Qa4 d1B Qa1 d2 Qd4 Bg2 Rb8 Bc2 Rbc8 d1N+ Ke1 Bd3 Kd2 Rcb4 Ra8 Nb2 Kc3 Nf1 Be3 Bf3 Rac8 Bc7 Rd8 Ra4 Re8 Bd8 Kb3 Rba1 Kc3 Nd1+ Kb3 Ne6 Rf8 Rf4 Rf7 Nf8 Qd5 Rae4 Qd4 Ra2 Nc3 Rf2 Ne2 Rg2 Kb4 Rg1 Kb3 Bb1 Kc4 Bd3+
4NN1n/R3K3/2rr2Q1/bR1b2q1/3p2P1/RPqqn2p/1N1n2RP/1k2Bq1n w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 f5 b5 axb5 e4 e3 g6 Bc4 gxf5 Be2 f4 Bf3 exf3 Kf2 Ke7 c4 Kf6 g4 Ke5 e4 h5 b3 f5 c5 d5 b6 a5 c6 d3 b7 Kd4 c7 d2 e5 Kd3 e6 d4 e7 a4 e8N h4 Qe2+ Kc2 Qf1 d1N+ Ke1 a3 Be3 f2+ Ke2 h3 Kf3 a2 Nc3 Nh6 Bc1 Nf7 Qg2 Na6 b8R Be6 c8R Nc5 Rc6 Rh6 Nd6 Nh8 Nge2 f1Q+ Qf2 Nd3 Ba3 Ra6 Rcb6 Qg5 Na4 Ne3 Ne8 Bb4 R8b7 Ba5 Rb5 Rc6 Ra7 Qb1 Qe1 Nf2 Rg1 Nh1 Bb4 Bg8 Qh4 Rhd6 Rg2 Qd1 Nb2 Qd3 Qh7 Bc4 Re1 a1Q Qg6 Qc1 Rd1 Kb1 Be1 Be6 Rd2 Qcc3 Rc2 Qb4 Rc4 Qbc3 Ra4 Bf7 Ra3 Bc4 Ng3 Bd5+ Ne4 Ng3 Kf2 f3 Nc5 f4 Ne6 Ngf1 Nf8 Nd2 Kg1 f2+ Kh1 f1N Kg1 Ng3 Kf2 Nde4+ Kf3 Nh1 Rc5 Qa6 Rb5 Qc5 Ke2 f3+ Kd3 f2 Ke2 Qd8 Kf3 Qc3 Kf4 f1Q+ Ke5 Qg5+ Qf5 Qd2 Rb6 Qad3 Rb5 Qg8 Qf6 Q2c3 Qe6 Nef2 Kf6 Ne4+ Ke7 Nd2 Qf7 Qgg6 Qg7 Qh5 Qg6 Qg5+
B2NrRrN/1bn2p1n/1p2N1P1/KP3br1/3n2BQ/4b2q/3PpNk1/B2q4 w - - 0 1 illegal: No possible last move, all moves rejected
2N1krN1/QP1q4/p5bp/1Nq2r2/4qbRR/1rP1p1NP/B3n1b1/3R1K1n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 f4 c5 f5 cxd4 Bf4 gxf4 b4 d5 g4 e5 h3 f3 c3 f2+ Ke2 h6 f6 a6 b6 d3+ Ke3 d2 Ke2 d4 g5 d3+ Ke3 Ne7 g6 Bf5 g7 Qc7 g8N Nbc6 b7 Rb8 b5 Bg6 b6 Nd4 Qb3 d1Q Ne2 d2 Ng3 Ne2 Ra4 Qc5+ Rd4 Bg7 Na3 Bf8 Bg2 f1R Nb5 Rf5 Qb1 Qa4 Qg1 d1B Bf3 Bg7 Kf2 e3+ Kf1 Bf8 Rg4 e4 Qf2 Qad4 Rg1 Qd7 Bh1 Rg5 Bf3 Nf5 Rh1 Bd6 f7+ Kd8 f8N Bf4 Qg1 Ke8 Qf2 Ng1 Bg2 Bf3 Rh4 Ne2 Rg4 Bh7 Ng6 Rh5 N6e7 Bg6 Nc8 Rg5 Nge7 Rf8 Rh4 Nc1 Ng8 e2+ Kg1 e1Q+ Bf1 Qee3 Bc4 Rh5 Ba2 Ne2+ Kf1 Qed3 Qd4 e3 Qg7 Qe4 Rg1 Ra8 b8R Rg5 Rb7 Rb8 Rc7 Rb7 Rc6 Rb8 Rd6 Rh5 Rd1 Rg5 Nh5 Rb7 Rgg4 Nfg3+ Ke1 Nh1 Ng3 Rgf5 Kf1 Rc7 Qd4 Rc6 b7 Rb6 Na3 Rb3 Nb5 Qb4 Qb6 Qc5 Qa7 Bg2+
4n1bb/3N2Pr/N1KB2kr/3p2Np/6rb/1q3pRQ/qPRPR3/3Nnn2 w - - 0 1 illegal: No proof kernel forced: bxDB
nR3nR1/rb3n1P/1p2pq1b/nBK1P3/N5PB/2n2Q2/2Bpr1Bk/bR6 w - - 0 1 illegal: No possible last move, all moves rejected
1B2nQ2/6pN/1p1pbN1P/N1B1b1PR/3qbkP1/1r4rB/1n5K/3brB1b w - - 0 1 illegal: No proof kernel
B1R3rR/p5q1/PrN2R2/3K3n/Np3bP1/1pP1Q3/nNb1b3/rN1nk2r w - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 d4 e5 dxe5 g5 Be3 gxf4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kd3 Ke6 Kd4 f5 a4 d5 e4 b5 h4 g2 c3 f3 a5 f4 h5 f2 h6 f3 a6 b3 h7 Qd7 Qe2 Nf6 Qa2 Bd6 Qb2 Nh5 Qe2 Qg7 Qe3 Rg8 Ne2 g1R Bg2 f1B h8R f2 Ra4 Bc7 Rc4 Nc6+ Kc5 Nb4 Nd4+ Kd7 Nc6 Ke6 Rh3 d4 Rf3 d3 Rf5 d2 Rf6+ Kd7 Kd4 d1N e6+ Kd6 e7+ Be6 Bf3 Rh1 Bg2 Rab8 e8N+ Kd7 e5 Be2 Nd6 f1R Rc5 Na2 Nc4 b4 Nb2 Bf5 e6+ Kd6 Na4 Rb6 Bf3 Bc2 e7+ Kd7 e8N Bf4 Nd6 Re1 Nf7 Reg1 Nfe5+ Kc7 Rf8 Kd6 Rc8 Ke6 Bd5+ Kf6 Nd3 Kg5+ Ke4 Kh4 Rf8 Rh2 Rf6 Rhh1 Kd4 Rf1 Ndb2 Re1 Bf3 Kg3 Kd5 Reg1 Nd4 Rf1 Rc8 Rfg1 Nc6 Re1 Qc1 Kf2 Be4 Reg1 Qe3+ Ke1 Nb8 Nc1 Na3 Kf1 Kc5 Nf2 Ba8 Na2 Kd5 Ke1 Qc5 Kd2 Nc6 Ra1 Nb1+ Ke1 Qe3 Nd1
4n1RR/2Rn1K2/1p2NN1p/N3br2/kPBqP1P1/5r2/3n1p2/rbRbb1Q1 w - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 a3 b3 exf6 Nc3 f5 Bb2 axb2 Nb1 f4 Kf2 Kd7 Kf3 c5 Kg4 f5+ Kh5 h3 a4 h2 d4 h6 Kg6 b6 e4 c4 b4 c3 a5 f3 a6 c2 d6 Kc6 d7 c1B g3 f4 a7 f2 Nd2 b1B Nh3 f3 Ng5 Nf6 Nc4 Kb5 d5 Ne8 d6 Bg7 Kf7 Be5 Nh7 Bd2 Nf6 Be1 g4 Ba6 Be2 f1N Qc1 f2 Na5+ Bd3 Qd1 Nd2 Rc1 Rg8 Rg1 h1R Rc7 Rg5 Qb1 Rf5 Bf1 Qc8 d8N Rh3 d7 Rhf3 Ne6 Ka4 d8R Nd7 Qc1 Bb1 Bc4 Qb7 Rb8 Qd5 Rf1 Ng7 Rh8 Qd4 Rg1 Ne8 Rf1 Rb8 a8R Rb7 Rd8 Ra7 Rh1 Ng7 Rdg8 Ne8 Qc3 Ra8 Qd3 Bb5 Qf1 Ra7 Qg1 Ra6 Ba2 Be2 Bc4 Bd1 Rh3 R3f4 Rc3 Rf3 Rc1 Ka3 Nb7 Ra8 Ba6 Kb3 Bd3 Ra3 Bc4+ Ka4 Na5 Ra1
2R2qKN/2n1B1Br/B4r2/1N1Q1b1p/1pBqq1qk/pP2nPb1/PN6/6q1 w - - 0 2 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 Qb3 gxh4 Qa4+ Qd7 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 a5 d4+ e3 g4 c5 b3 h5 d6 b5 d7 a4 Ke6 b4 Kf7 e5 f3 h3 d5 e4 d6 a3 Rh2 c4 Qd4 c3 Qe5+ Kh4 g5 c2 g6 e2 g7 e1Q Ne2 e3 Rg2 h2 Qd5 h1Q Nf4 e2 Nd3 Qd1 Bh6 e1Q Nc3 c1Q Nb5 Qg1 Nb2 Nf6 g8B Qg5 Bg7 Ng4 Rc1 Qdd4 Re2 Ra6 Re8 Be7 Rf8 Ne3 Bc4 Q5g3 Bh7 Rc6 Bhd3 Rh7 Kg8 Na6 Be2 Nc7 Rc2 Qe8 d8B Bf5 d7 Rf6 Rc3 Bd6 Be7 Qa8 d8N Qgg4 Nf7 Bg3 Nh8 Qd8 Bcd3 Ne8 Rc8 Nc7 Bc4 Qb1 Nc3 Qbd3 Ba6 Qdb1 Nb5 Qbe4 Bc4 Qxf8+
4bbqr/1QpRb3/P1B2p2/3R2Bn/2P1pb1K/kNr1R3/q1B1bPn1/R7 w - - 1 2 legal: proof: e4 d5 b4 dxe4 a4 g5 h4 a5 hxg5 axb4 Na3 bxa3 d4 Kd7 c4 Kc6 g4 b5 a5 h5 d5+ Kc5 g6 Kb4 d6 e5 g5 a2 d7 h4 g7 h3 g6 e3 Bd3 e2 Be3 e4 Bb1 h2 Qc2 Nf6 g8B Nh5 g7 f6 Qc1 Nc6 Bh7 Ne5 g8R Nd3+ Kd2 Ne1 Bg6 Ra7 Qd1 Ka3 Bc2 b4 Rg7 b3 Nf3 b2 Bg5 b1Q Ke3 Be7 Nd2 Qg8 d8R Bd7 Rf7 Be8 Rd5 Bf8 Rf1 h1B Nb3 Bf3 Rfd7 Rb7 a6 Be7 Nc5 Rb3+ Qd3 Rc3 Nb3 Ng7 Kf4 Nh5+ Kf5 Bf8 Rh1 Qb2 Rh3 Be7 Rb1 a1B Qd4 Bf8 Qa7 Qa2 Qb7 Bb2 Ra1 Bc1 Rg3 Bf4 Bf7 Ng2 Rh3 e1B Bg6 Be2 Re3 Bd2 Bf7 Ne1 Be6 Nf3 Kg4 Ne1+ Kh4 Be7 Rdd3 Bfd6 Bd5 Bf8 Rd4 Bde7 Bc6 Bc1 R4d5 Bd2 Red3 Bf4 Re3 Ng2+
nB6/1q1NrkBp/B1q2Bn1/3P4/bR1p1pQ1/K2bq1R1/4RPqP/5rq1 w - - 0 2 illegal: No proof kernel
1kNQK2b/2N2n2/r3bqR1/P3qnPn/1N1B4/3NB2p/pr2q1pP/3Bq3 w - - 0 1 illegal: No proof kernel
1B1n1B2/1Bq1p1K1/2Q1p1b1/1PR1Ppb1/3NrP1B/q3r1NN/k2rq2q/2n5 w - - 0 2 legal: proof: b4 c5 g4 h5 a4 b5 axb5 hxg4 Ra6 cxb4 Re6 dxe6 h4 Kd7 f4 Kd6 Kf2 Kd5 Kg3 Kc4 d4 a5 c3 f5 h5 g5 d5 a4 d6 a3 h6 b3 h7 b2 d7 a2 Qd6 Kb3 e4 a1Q e5 Na6 c4 Nc5 Be2 Nd3 c5 Bh6 c6 Ka2 c7 Ra3 Nd2 b1R Bf3 Rb4 Bb7 Re4 Ndf3 Qb2 Rh3 Qe2 Be3 Nc1 Qc6 Rc3 Bf2 Rce3 Ba8 Bb7 c8N Qc7 Nd6 Bc8 d8B Bd7 Rh1 Be8 Nh3 Bf7 Bb7 Bg6 Kg2 g3 Nd4 g4 Rh2 Qc8 Bc7 Bg5 Bb8 Nh6 Rh1 Rf8 h8B Nf7 Bg7 Rd8 Bf8 Qc7 Rd1 Rd7 Rd3 Nd8 Rc3 Qe1 Rc5 Qe2 Nc4 Rd5 Nd2 Rd6 Nf1 Rd7 Kh1 g2+ Kh2 Rd5 Bh4 Rd7 Nf2 g3+ Kh3 g1Q Nb3 g2+ Ng3 Bh6 Nd4 Rd5 Bf6 Rd6 Kh4 Qh2+ Nh3 g1Q Bg5 Qge1 Bf6 Q1d2 Bg5 Qb4 Bf6 Bg7 Kg5 Bh8 Kh6 Qa3 Bg5 Bf6 Bh4 Bg5+ Kg7 Rd7 Nc2 Rdd3 Nd4 Rd2
2r3Nk/3N1rb1/r2pP2q/B3n2p/q3p2n/1bR2P1N/1B2P1Br/2b1N1QK w - - 0 1 illegal: No possible last move
k2nnNBr/1q4NN/Kp4q1/1p6/p2rPB1q/1P1r1bBP/3Q3b/5RBr w - - 0 1 illegal: No proof kernel
B1N2Nnk/K3Q2N/3Br1P1/p1p3rp/P1N1n1bq/1q1nb3/2Pq4/3B2qR w - - 0 2 legal: proof: f4 c5 h4 g5 b4 gxh4 a4 e5 b5 exf4 Ra3 Bg7 Rg3 Bh6 Rg6 Bf8 Rc6 dxc6 bxc6 Qb6 Na3 Qa5 Nb1 Qd8 Kf2 a5 d4 h5 e4 b5 g4 f5 g5 Kf7 d5 Kg7 e5 f3 Ke3 b4 d6 f4+ Ke4 f2 Kd5 b3 d7 h3 c7 h2 e6 b2 e7 f3 e8B Ra6 Nd2 b1Q Qe1 Nc6 Be2 f1Q Nh3 f2 Nc4 Qb3 Bf4 Ne5 Bd1 Nd3 Bd6 Qg1 g6 f1N Qe2 Ng3 Ng5 Ne4 Nh7 Qh4 d8N Bg4 c8N Qge1 Bg3 Re6 Bd6 Qd2 Kc6 Be7 Kc7 Bg5 Bc6 Be3 Ba8 Re5 Kc6 Rg5 Qe1 Ngf6 Qe2 Re8 Ne6+ Kh8 Nef8 Re6 Kc7 Ng8 Kc6 Qa2 Kb7 Qb1+ Ka7 Qb3 Rf1 h1Q Qe1 Qhg2 Rh1 Qg1 Qe2 Bf2 Qe3 Nef6 Qe4 Be3 Qb7 Ne4 Qd7 Qf1 Qe7 Qg1
2r2N2/1p1NR2P/2b1K3/3np1Rr/NP2RrBk/p1Q3br/P1qn4/N4q1n w - - 0 2 legal: proof: e4 g5 g4 d5 c4 f5 b3 h6 cxd5 fxe4 f4 Bd7 Bb2 Bc8 Bf6 gxf4 g5 Rh7 g6 Rh8 Bg5 hxg5 Ke2 c5 h4 a5 d4 a4 g7 Kf7 b4 Kg6 d6 Kh5 d5 g4 d7 f3+ Ke3 a3 Kf4 f2 Kf5 e3 d6 e2 Qe1 g3 Qc3 e1Q Ne2 g2 Qb3 g1R Rh2 c4 Bh3 f1R+ Ke5 c3 Nd2 c2 Qc3 c1N Ke6 Qc7 Nb3 Rh1 Rg2 Nf6 g8N Ne4 Rg1 Nc6 Nf6+ Kh6 h5 Nd2 Rg2 Rf4 Rg5 Nd3 Bg4 Qf1 Re1 Nf2 Na1 Rh2 Qf3 Rb8 Nc3 Rh3 Re4 Nh1 Na4 Bg7 Qc3 Ra8 Nh7 Be5 Nf6 Ra5 Kf7 Rb5 d8R Bd7 Re8 e6 Re7 Rc8 Qc5 Ra5 Qc3 Be8+ Kf8 Rd5 d7 Rb5 d8N Bd7 Re8 Ne7 Kf7 Nd5 Re7 Bc6 Rf5 Bd6 Nd7 Nf6 Rd5 Be5 Rc5 Kg5 h6 Kh4 h7 Bd6 Rg5 Rbf5 Rg8 Rh5 Rg5 Nd5+ Nf6 e5 Ne6 Bc5 Nf8 Bf2 Ke6 Bg3 N6d7 Qa5 Qe3 Qc5 Qb3 Qcc1 Qc3 Qc2
2b2qBB/1p6/k2P2p1/p1BbK1R1/4RnNQ/Pbrn2R1/1PB3r1/1b4bb w - - 1 2 legal: proof: f4 c5 g4 d5 e4 c4 g5 d4 d3 cxd3 f5 Qd5 exd5 Bd7 Na3 Bc8 Nc4 g6 Ne5 gxf5 g6 f4 g7 Nh6 Ng6 hxg6 Qg4 Ng8 Qe2 Nf6 Qd1 Ng8 Kf2 Kd8 Kf3 Kc7 Ke4 Kb6 h4 a5 c4 f5+ Ke5 d2 h5 d3 c5+ Ka6 h6 f3 a3 f2 c6 f4 h7 f3 c7 Nc6+ Kf4 e5+ Ke4 Bc5 d6 Nb4 Rh2 Ne7 g8R Ned5 Re8 Nf4 Qe2 d1B Ra2 Bb3 Bg2 f1B Ra1 f2 Qe3 d2 Rh1 d1B Qh3 Bfc4 Nf3 f1B Nh2 Nbd3 Ng4 Bdc2 Qh4 Bg1 Be3 Bb1 Bc5 Bg8 Bf3 Bg2 Rh3 Bh1 Rg3 Bgc4 Re7 Rf8 h8B Rf5 Rg2 Rg5 Bd1 Bf7 Bc2 Bg8 Kf3 e4+ Kg3 e3 Re4 e2 Kf3 Bd7 c8B Bgd5 Kg3 Bf5 Be6 Rc8 Bg8 e1Q+ Kf3 Qf1+ Kg3 B1a2 Rae1 Bb1 R1e3 Nf2 Rd3 Rc7 Kf3 Bc8 Ke3 Rc6 Kd4 Rc7 Rdg3 Rc6 Bb6 Rc3 Ba7 Qb5 Bc5 Qe8 Rf3 Qf8 Rgg3 N4d3 Rf5 Nf4 Ke5 Rh5 Qf6 Rh2 Qh4 Rg2 Rg5 N2d3+
1nR1Q3/N4p1n/1RP1pk2/Br1b1bb1/4P1qB/p6B/3P4/KBRbnr1n w - - 0 1 illegal: No proof kernel
R5q1/p2nkp1Q/P1P1BR2/4rqR1/2B1nB2/nR1Nb1p1/nr3P1K/1n3q2 w - - 0 1 legal: proof: g4 c5 h4 e5 b4 cxb4 d4 exd4 h5 Qe7 h6 Qd8 Kd2 b6 Ba3 Bb7 Bb2 Be4 Ke1 Bg6 Bc1 Bh5 gxh5 Nc6 Na3 Qe7 Nc4 Nb8 Ne5 Qd8 Ng6 hxg6 e4 d5 a4 b3 c4 b2 e5 b1N c5 d3 a5 b5 c6 g5 e6 d4 h7 g4 h6 g5 a6 g3 Rh4 g2 Bb2 b4 Rh5 g4 Qa4 d2+ Ke2 d1N Rf5 b3 Rg5 Bc5 Bc1 b2 Qc2 Nf6 Nf3 g1Q Ne1 Na3 Bf4 b1N Nd3 Ke7 Ra2 Qg2 Rb2 Qgd5 Rb3 Re8 h8R Qf5 h7 Ne4 Rhg8 Bb6 h8R Nd7 R8g6 Rb8 Rf6 Ndc3+ Ke1 Na2 Be2 Nf8 Kf1 Nd7 Kg1 Rb7 Kh2 Qa8 Ne1 d3 Bf1 d2 Bc4 d1Q Nd3 Be3 Rhg8 Qf1 Rh8 Kd8 e7+ Kc8 Rhg8 Rb5 Rf8 Re5 Rh8 Kc7 Rf8 Rb8 e8B Kd8 Rfg8 Ke7 Rf8 Ndc5 Bd7 Rb4 Bde6 Nd7 Rh8 Qf8 Rhg8 Qg7 Ra8 Qg8 Qe2 Rb8 Qf3 Rb4 Qh3 Rb8 Qh7 Rbb5 Rc3 Rb2 Rb3 g3+
4RB2/1bN1Qbqq/2r2b2/kPp2rn1/4rrpN/2N3Pb/B1Pp1K2/NB6 w - - 0 1 legal: proof: e4 b5 a4 bxa4 d4 e5 f4 exd4 e5 Nc6 e6 Qf6 Be3 Qg5 Bc1 Qd8 b4 h5 Ra3 Ne5 fxe5 h4 Rd3 h3 g3 Rb8 Rd2 Ra8 Rg2 hxg2 h4 f5 e7 d5 b5 Kd7 e8N g5 h5 c5 h6 a5 h7 a3 Bc4 a2 Nc7 a1Q Qg4 d3 Ne6 f4 Kf2 d4 Qf5 d2 Rh4 d1B Rh2 f3 Qg4 a4 Be3 a3 Nf4+ Kc7 e6 Kb6 e7 d3 e8B a2 Bd7 d2 Bf5 Bb7 Nh5 Qe7 Nh3 g1R Bfe6 Ra4 Qh4 Nh6 Rg2 Nf7 Qe4 Qg7 Qe5 a1R N5f4 Re1 Nc3 Ka5 Nfe2 g4 Ba2 Ng5 Bg8 Rf4 Nd4 Be2 Bb1 Bc4 Qe6 Qd7 Qe7 Bf7 Rg1 Rf5 Nf4 Ra4 Nfd5 Rb4 Bf4 Re4 Bd6 Rc4 Nc7 Ra4 Qe6 Be7 Re1 Bf6 Bf8 Rb4 Qe7 Ref4 Kf1 f2 Re4 Nf3 Nb3+ Kb6 Re5 Rbe4 Na1 Ka5 Kg2 f1B+ Kf2 Bh3 Re6 Be8 Re5 Bh5 Bga2 Bf7 Re6 Rg8 h8N Qh7 Ng6 Rg7 Nh4 Rg6 Qd8 Qe7 Bh6 Qf8 Re8 Qfg7 Qd7 Be7 Qd8 Rc6 Qd6 Bf6 Qe7 Qgg8 Bf8 Qhg7 Qe6 Q8h7 Qe7 Ng5+
r5r1/p1p1rN1R/2q1qk1b/n1qr1B2/PRQqRN1p/2P2Nn1/7P/3R2K1 w - - 1 3 illegal: No possible last move, all moves rejected
1N2n1rN/2rQbB2/4pqpN/k4nP1/2b1P3/3R1B1p/1K1Pr2p/1bB1N2n w - - 1 2 legal: proof: c4 a5 h4 d5 b4 axb4 cxd5 g6 a4 g5 Ra3 gxh4 Rg3 Kd7 Rg7 Ke8 Rg6 fxg6 f4 Kd7 e4 c5 g4 Kc7 g5 Kb6 f5 h5 d6 e6 f6 h3 d7 b3 f7 b2 Qe2 h2 Kd1 c4 Kc2 h4 Nc3 b1R Nf3 h3 Rg1 Ka5 Nd1 b5 Rg3 b4 Nf2 c3 Bg2 Ra7 Ng4 Nc6 Nh6 Be7 f8N Rc7 Qd3 Nf6 Ne1 Ne8 Bf3 Ba6 Qd4 Bc4 Qd5+ Ka6 a5 Rg8 Qd6 Kb5 a6 Ka5 a7 Rb3 a8B Nd4+ Kd1 Ra3 Bc6 b3 Bb5 b2 Qd5 Qb8 d8N b1B Ndf7 Qd8 Nh8 Rb3 Nd7 Ra3 Bb2 c2+ Kc1 Re3 Nb8 Re2 Qb7 Bb3 Ba3 Bc4 Kb2 c1N Qd5 Qc8 Qd7 Nd3+ Kc3 Qa6 Bc1 Nf2 Kb2 Qb6 Bg2 Nh1 Rd3 Qd6 Bf3 Qf4 Qd8 Ng7 Be8 Qf6 Bf7 Ne8 Qd7 Nf5+
1N2B1Bq/5Qrp/PBr2n1K/b1p2p2/1R1rbn1P/P2r3N/2Nkr2p/2N5 w - - 0 1 legal: proof: b4 d5 f4 g5 c4 dxc4 h4 a5 bxa5 e5 a3 exf4 Ra2 g4 Rc2 Qg5 Rc3 Qd8 Rch3 gxh3 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5+ Kh5 Ke4 d4 f5 g4 b5 g5 c3 a6 f3 d5 c2 d6 f2 g6 h2 d7 b4 g7 b3 Nh3 b2 Be3 c1R Qb3 Bb4 Bb6 Ra7 Qf7 Ne7 g8N Rc6 Nh6 Ba5 Ng4 Ng6 Kh6 Re8 Ne3 Bb7 Nc2 Ree6 e3 Qh8 d8N Nd7 Bc4 f1R Nc3+ Kf3 e4 b1R e5 Rfd1 Bb3 Nf6 Ne2 Rd4 Nc1 Nf4 Ba2 Red6 e6 Rb2 e7 Rd3 e8B R6d4 Re1 Ba8 Re4 Bb7 Ne3 Re2 Nc2 Ba8 Re5 Rb7 Rb5 Ke4 Rb4 Ra7 Ne1 Ke3 Nc2+ Kd2 Bb3 Rcc3 Be6 Be4 Nc6 Rb7 Nb8 Rc6 Ng1 Rcd6 Nh3 c5 Qg7 Rc6 Bg8 Rbc7 Qg6 Rg7 Qh5 Rdd7 Qf7 R7d4
6NB/1rN1p1n1/pPRrp3/b4b1K/2NP2RQ/1qN3p1/3r2PR/k1nn1r2 w - - 0 1 illegal: No proof kernel
2B1b2R/1nbr2Pb/1PRp4/npB1rp1B/3N1P1R/Q6n/B1pq3k/4Kn2 w - - 0 1 illegal: No possible last move
1BQBrrR1/B1P2R2/1K2p1nr/3prqb1/3P1nB1/1pN4P/4Rpn1/k6b w - - 0 1 illegal: No proof kernel
1b1k3n/1pn4p/b1Q1pPb1/1p2r3/nBB1rR1R/1NR1B2R/qPP4b/7K w - - 0 1 illegal: No proof kernel
3kb3/5nNp/1bn1p2R/4r1r1/1P3QN1/n1PrqBp1/RN1pP3/nK3N1R w - - 0 1 legal: proof: g4 b5 h4 g5 a4 c5 axb5 f6 d4 gxh4 g5 cxd4 g6 Bh6 Bf4 Bf8 Bg5 fxg5 Kd2 a5 Kc1 d5 f4 d3 b4 d4 g7 g4 c3 e6 b6 h3 b7 h2 f5 d2+ Kb2 d3 f6 g3 Qc1 d1N+ Ka2 d2 Bg2 a4 Na3 Nh6 g8N Bd7 Bf3 Ra5 Kb1 Re5 Ra2 Nb2 Nc4 a3 Qf1 Bc5 Ne7 Bb6 Nf5 Nc6 b8N Nf7 Qf2 Qe7 Ng7+ Kd8 Qf1 Be8 Nd7 Rg5 Nde5 Qc5 Ng4 Rg8 Qf2 Rd5 Qe3 Rd3 Qf4 Qd4 Nh5 Rg5 Ng7 Nh8 f7 Qe3 f8R Nf7 Nh3 Re5 Nhf2 Rg5 Nd1 Re5 Rg1 h1R Rf1 Rh6 Rh1 Rhh5 Rg8 Rhg5 Rf8 Qe4 Nce3 Nc4 Nf1 Qe3 Nb2 Nh8 Rf6 Nf7 Ra1 a2+ Kc2 Bc5 Rfh6 Bd4 Rd1 a1N+ Kb1 Bc5 Rc1 Bb6 Rc2 Red5 Na4 Rb5 Ra2 Rbe5 Nb2 Na3+
k1b4r/3r2pR/3pp1BP/NbQr2P1/Npnb4/2R1N2q/1R1P2R1/2r2nK1 w - - 1 2 legal: proof: e4 a5 g4 f5 exf5 h5 b4 axb4 Bb5 c5 Bf1 h4 Ba3 b3 Bb4 cxb4 Qf3 Ra4 Qc3 Ra8 Qg3 hxg3 f4 b5 a4 b2 c4 e6 h4 g2 Kf2 b3 a5 b4 a6 Ke7 h5 Kd6 f6 Kc7 f7 Qf6 c5 Qg5 f5 Qe7 c6 Rh7 g5 Qd8 f6 Nh6 a7 Kb6 c7 Kb7 Na3 b1R Nc4 b2 Ra2 Rh8 Ne3 Rc1 Ne2 b1B Kg1 Nf5 Nd4 Ng3 Nb3 Bd3 Rb2 Bc5 f8R Nc6 f7 Ne5 h6 Rb8 a8N Nc4 Nb6 Bd4 Na4 Ka8 Rh2 Rb5 Na5 Rd5 Rg8 Qf6 f8Q Qf3 Qc5 d6 Rd8 Rc3 Be2 Qf5 Bh5 Nf1 Bg6 Qh3 Rf8 Nb6 Rg8 Bb5 Rd8 Nc4 Re8 Rf8 Rd8 Rf7 Rh8 Re7 Rh7 Rd7 Kf2 g1R Rg2 Ra3 Bf5 Rh1 Bg6 Rh2 Kg1 Ra1 Rg4 Rf2 Rg2 Rf8 Ra2 Bb7 Rb2 Rb8 c8R Rc1 Rc6 Bc8 Qb6 Na3 Rc3 Nc4 Qc5 Bca6 Re2 Rh8 Rg2 Bc8
5nQR/B1pq4/1pKp3b/r1PP1b2/pr2N1N1/1nPBBk1B/2q5/2N1n2n w - - 0 2 illegal: No proof kernel
q1RBk3/4p2r/1n2Q1K1/NR1qP1p1/NNn1Nnb1/3PR1p1/p2P2n1/4br2 w - - 0 1 legal: proof: a4 b5 Ra2 bxa4 Ra1 d5 Nc3 d4 Nb1 d3 cxd3 Bd7 Na3 Bh3 Nb1 Bc8 g4 f5 g5 f4 g6 f3 Bg2 fxg2 Nc3 hxg6 Nb1 g5 Ra2 g4 Ra3 Rh7 Ra1 Rh8 f4 a5 Kf2 c5 Ke3 g5 Ke4 c4 b4 c3 h4 a3 b5 a4 f5 c2 h5 g3 h6 a2 f6 a3 f7+ Kd7 Kf5 Ra5 e4 Bg7 f8N+ Ke8+ Ne6 Ra6 b6 Qd6 b7 Nf6 h7 Qc5+ Kg6 Kd7 Nf3 g1N Bb2 c1N Bc3 Nc6 b8N+ Ke8 Nfd4 Qd5 Ba5 Nd7 Bd8 Nge2 Nb3 Na5 Nc6 Nc4 Nc3 Ndb6 Nb4 Bd4 e5 Bf2 Na4 Be1 Rb1 a1Q Nec5 Bg4 Na5 a2 Ne4 Nf4+ Kh6 Ra8 Qb3 Ng2 Kg6 Ne2 Rg1 Rf8 h8R Qb2 Rf1 Qa3 Rf3 Rc8 Re3 Rc6+ Kg7 Rh6 Rg8 Rh7+ Kg6 Qb2 Rh8 Qbd4 Rb2 Qa8 Rg8 Nd6 Qe6 Qdd5 Nc2 Ndc4 Rb5 Qb8 Nb4 Qba8 Rh8 Bf3 Qf6 Bg4 Bc7 Kd7 Rg8 Rff7 Rc8 Rf8 Bd8 Ke8 Qd6 Rf1 Qe6 Nef4+
r1q1R3/P1N1pq2/1P4N1/2n2p1B/1pBb3B/kBr1PK2/3Q1qp1/1bqN3n w - - 0 1 illegal: No proof kernel
BK3rN1/1Qp1bkN1/B1p2NR1/q3p1q1/1P2n2q/4p2q/2P1P3/1rNBnb2 w - - 1 2 illegal: Other
r2q1R2/b1Rr1p1r/1BN1q2k/2Q2P2/1Bp1p1B1/1qPp1bP1/nR2R1K1/4q3 w - - 0 1 illegal: No possible last move
qQ1R1nN1/3b1R1N/2p3q1/rb1p2n1/1B1K1N2/1p1p1Pbn/2PP1k2/nN5R w - - 0 1 legal: proof: g4 f5 b4 fxg4 b5 e6 Bg2 a6 Bc6 axb5 Bd5 b4 h4 exd5 Ba3 b5 Rh3 g5 Rh2 g3 Bc1 g4 Rh1 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Ke7 Na3 Kf7 Nb1 Ke8 a4 Kf7 e4 Ke6 Ke2 Ke5 Kd3 Kf4 g6 h5 g7 d4 e5 g2 e6 h4 a5 g3 a6 b3 a7 b4 a8R h3 e7 b2 e8N h2 Nd6 Nh6 g8N Nf5 R1a6 Rh5 Nc3 b1N Na4 Nc3 Nf3 g1N Qf1 g2 Nf7 Nh3 Nfh6 g1Q Nb6 Ne4 Qe1 Neg5 Nh4 Bd6 Ng2+ Kf3 R6a7 Bg3 Kc4 d3 Nf6 Nd4 Qe5 Nb3 Kd5 Na1 Nf4 b3 Kd4 d6 Qe8 Nd7 Nhg8 Nf8 Nh7 Bd7 Ba3 c6 Nbd5 Qg2 Rc1 h1B Bb4 Qa5 Rc8 Qa2 Rac7 Qa8 Nc3 Qg1 Nb1 Bg2 Ne6 Ke2 Ra7 Bd5 Rd8 Bc4 Nf4+ Kf3 Rc7 Qg2 Rh1 Bb5 Ne6 Ke2 f3 Kf2 Nf4 Bh4 Ne7 Qg4 Ng8 Bg3 Ra7 Qe6 Rb7 Qg6 Rc7 Nf7 Rb7 Rc5 Qe5 d5 Qb8 Nfg5 Ra7 Bc4 Rc7 Ra5 Rb7 Bb5 Rc7 Be6 Rf7 Bd7
2Bn1b2/2r2p2/RKP1pN1k/2qBPQr1/1n1rNqp1/6BN/1p3P2/r3B2n w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b6 g4 Ba6 h5 Bb7 b4 a5 h6 axb4 Ra3 Be4 Rg3 Bg6 Rg2 Bh5 gxh5 Nf6 Rg5 Ng8 Rg6 hxg6 Kd2 d5 Kd3 e6 c4 g5 e4 b3 h7 b2 a5 g4 e5 g5 a6 g3 c5 g4 h6 g2 a7 b5 Rh2 b4 Na3 b1R Bb2 b3 Rh3 Qe7 Qc2 Nc6 Be2 Rc8 a8B Rc7 Nb5 Nf6 Bc3 b2 Be1 Nd8 Nc3 Rg8 h8N Ra1 h7 Rg5 Ne4 Qd6 c6 Qc5 Bb7 Nh5 Rf3 Ng3 Ng6 Nh1 Nh3 g1Q h8B Qg3 Ngf4 Ke7 Nh5 Qf4 Re3 Ke8 Bc8 Ke7 Kd2 d3 Bf3 d4 Bg7 Ke8 Bh6 Ke7 Qb1 Ke8 Nhf6+ Ke7 Kd1 d2 Ke2 d1N Ra3 Ne3 Ra6 Nd5 Bg2 Nb4 Qc2 Rg8 Bg5 Rg7 Bh4 Rg5 Bg3 d3+ Kf1 d2 Ke2 Na2 Kd3 d1R+ Bd2 Qd6+ Kc4 Nb4 Be1 Rd4+ Kb5 Qd5+ Kb6 Qc4 Bf1 Qc3 Bc4 Qce3 Ba2 Qc3 Ka5 Qc5+ Ka4 Rdd1 Nd6 Bh6 Qf5 Kf8 Nde4 Kg7 Bh4 Rd4 Bg3 Qc2+ Kb5 Qcc1 Kb6 Qc4 Nd7 Qc2 Qf6+ Kh7 Bd5 Bf8 Qf5+ Kh6 Ndf6 Qc5+
3B3k/P2Kn1p1/2r1r2n/1Bq2N2/qp3Qb1/1NB1B2p/1PrrR1Pp/2N1n3 w - - 0 1 illegal: No proof kernel
3Bn3/r1bBP1Nr/6kp/BR2rRb1/R2Kp1pn/4p1Pr/7P/QB2rb2 w - - 0 1 legal: proof: e4 b5 b4 c5 f4 e5 a4 bxa4 b5 d5 Nc3 Qf6 Na2 dxe4 Bc4 e3 Nb4 e4 Bf1 Qe5 fxe5 cxb4 Ke2 a5 c4 g5 d4 f5 b6 Kf7 d5 g4 e6+ Kg6 e7 f4 g3 f3+ Ke1 a3 d6 a4 c5 a2 d7 f2+ Ke2 a3 d8R b3 b7 b2 c6 b1R c7 Bh6 Nf3 Nc6 b8B Ne5 Rf8 Ra7 Rf5 Rb5 Bd2 Bg5 Ba5 Nf6 Nd4 Ba6 c8B Nf3 Bbc7 Nh4 Bd7 Ne8 Ne6 h6 Qc1 Rh7 Ng7 Re5+ Kd1 Bc4 Bd3 f1R+ Kc2 Re1 Rb1 a1B Rb5 a2 Bd8 Bb2 Qd1 a1R Rg1 Ba3 Kc3 Bd6 Bb1 Bf1 Kd4 Bc7 Rg2 Ra2 Qa4 Rc2 Qa1 Rcc5 Ra2 Bf4 Rf7 Rh5 Ra4 Rce5 Rf5 Bg5 Rf7 Ng2 Rf4 Rh3 Rf5 Nh4
1R3Kr1/r3B1p1/p1bQN2p/rB1p3B/1r4b1/1nqPP3/3bN2P/b1N1B2k w - - 0 1 illegal: No possible last move, all moves rejected
3B1Kn1/qnRN1bP1/3b4/2n1P1N1/2QbRn1k/2nP4/bR1b4/Qq3R2 w - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 e5 f4 exf4 g3 b5 axb5 a6 b6 Bg4 b5 Qd7 b7 Bf5 b6 Qd8 Bg2 Bc8 Bc6+ Ke7 h3 h5 g4 f5 Bd5 g5 Bf7 f3 Be8 f4 Bb5 axb5 Kf1 Rh7 Kf2 Rf7 Ke1 Rf5 gxf5 g4 h4 Ke8 Qb3 Ra3 Qc2 Re3 Qd1 Re7 Kf2 Rg7 Ke1 Rg5 hxg5 Qe7 Rh4 Qd6 Rh1 Qd8 Kf2 Ke7 e4 c5 g6 Kf6 d3 Kg5 f6 g3+ Kf1 f2 Kg2 f1N Kf3 b4 e5 b3 Ke4 c3 g7 b2 f7 h4 Qe2 c2 Ra7 h3 Ra5 c4 Qe3 g2 Na3 b1N Qd2 c3 Bb2 c1B Nb5 h2 Nd6 c2 Kd5 Ne7+ Kc5 Qd7 Ra8 Ne3 Ra4 f3 Re4 f2 Qb4 f1Q Bc3 N3d5 Ne8 Nf4 Nf6 Nbc6 b8Q Bd2 b7 c1N Qa7 Nd8 b8R Kh4 Qa1 Qa7+ Kd6 Be6 Qc4 Nb3 Ba5 Nc5 Nh3 g1B Nd7 Bd4 Rb2 Nc3 Ng5 Qb1 Rc1 h1B Bc7 Ndc6 Bd8 Na5 Rcc2 Bd5 Rb7 Bf3 Rc7 Bd1 Ra2 Bb3 Rb2 Ba2 Nb8 Na6 Kd7 Nb7 Ke8 Nac5 Nd7 Ng6 Rb3 Be6 Rb2 Bd6 f8R Ne7 Rf5 Bd5 Kf8 Bf7 Re1 Nfd5 Rff1 Nf4 Re4 Ng8+
1qr2Bb1/1QP1bq2/1r6/3Bb3/Q2K1nk1/1PNQR3/nb2P1pQ/N6n w - - 0 1 legal: proof: f4 b5 g4 c5 d4 cxd4 f5 h5 gxh5 b4 f6 b3 axb3 exf6 Bh3 f5 Bf1 f4 c4 a5 Ra4 Qe7 Ra3 a4 Nd2 Qb4 Ra1 a3 Ra2 Qa4 bxa4 Ra6 b3 Ra8 Rc2 a2 Rc3 dxc3 Kf2 Ke7 h4 Ke6 h6 Kf5 h7 a1B c5 d5 h5 g5 c6 d4 a5 f3 a6 c2 c7 d3 Ke3 f2 h6 g4 a7 g3 Rh3 Bf6 Qe1 Kg4 Rh2 Be6 Rh1 B6e7 Ke4 f5+ Ke5 f4 Ba3 c1B Bb4 f3 Nb1 d2 Rh5 d1N Rh1 Bb2+ Qc3 Na6 Rh3 Rb8 a8Q Nf6 Qb7 Nh5 Bg2 f1Q Kd4 f2 Nf3 Nf4 Ne1 Bg8 Bd5 g2 Nc2 Qe1 Bd6 f1Q Re3 Nb4 Na1 Na2 Bc5 Nf2 Ba3 Bc1 Qd3 Nh1 Nc3 Bb2 Bb4 Bd6 Bc5 Bfe7 Bb4 Be6 Bc5 Rhe8 h8Q Rec8 Qe8 Bg8 h7 Qg3 h8Q Qh3 Qbc6 Rb6 Qb7 Qh7 Qa4 Qf7 Qh2 Qf3 Bc4 Qc6 Bb4 Qce8 Bd5 Qc6 Qb8 Qa8 Qb7 Qb8 Qe4 Bh4 Ba5 Bda3 Bb4 Bd8 Bf8 Bde7 Qc2 Bad6 Qd3 Be5+
3k1rrR/rQR5/2p1r1r1/Q4q1r/PB1Nbq2/2K2Pn1/3Q2P1/2Bb1Q2 w - - 0 1 legal: proof: d4 a5 e4 d5 exd5 f5 b4 axb4 c4 g6 c5 Bh6 Bd3 Bf4 Be4 Bd6 cxd6 Ra3 Ke2 Ra6 Ke1 Ra8 h3 fxe4 f3 g5 Kd2 g4 Nc3 g3 h4 Na6 Qe2 Nc5 Nd1 Ne6 Nf2 gxf2 Qd1 Ng5 hxg5 Bd7 Ke2 Bh3 Kd2 Bc8 a4 f1B g6 e5 g7 b5 Ra3 h5 Rc3 c6 Rc2 b3 Rc5 b4 Nh3 b2 Rc2 b1R Qe2 h4 Qe3 b3 Bb2 Bf5 Nf2 h3 Qc3 h2 Qa5 e3+ Kc3 e2 Ng4 e1R Ne3 e4 Bc1 b2 Re2 Qc7 d7+ Kd8 Nc2 e3 Qa7 Ne7 Qb7 Re8 g8Q Rf8 Qg3 Bh7 Qf2 Qf4 Rd2 Ba6 Qf1 e2 Rd3 Nf5 Rd1 Ke7 d8B+ Ke8 d6 Ra7 d5 Ng3 Be7 Be4 Nd4 Bad3 Bd2 Bc2 Bc1 Rg8 Bf8 Kd8 d7 Bb3 Rd3 Bd1 Bb4 Rf8 Rg1 h1R Rd2 Rh2 Rh1 Rh6 Rh3 Rg6 Rh8 Ra1 Rd3 b1Q Re3 Bf5 Re7 Be4 Nf5 Bd3 Bca3 Rfg8 Nh4 B1c2 Reh7 Bb3 Qh1 Bbc2 Qa6 Kc7 Nf5 Rd1 Bb2 e1R B2a3 Ra2 Bc1 Re5 Qf1 Bb3 Re7 Rde1 Reh7 Rae2 Rf7 Bd1 Rfh7 Rc8 d8Q+ Kb8 Qe7 Rcg8 Qa5 Kc8 d6 Rd5 Qf7 Ree8 Qg7 Ref8 d7+ Kb7 d8Q+ Re7 Nh6 Rh5 Nf5 B3c2 Qdd5 Kc8 Qd2 Ree6 Nd4 Bd3 Bba3 Qb5 Bb4 Qbf5 Qe7 Ra8 Qea7 Be4 Rc7+ Kd8 Qb7 Ra7
n7/7b/q1q1qKBn/Br1R1P2/rPPB4/1p1NbQB1/3kp3/2Rn3Q w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 Nd2 a4 Nb3 axb3 a4 Nc6 axb5 Nb8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 f4 e5 c4 d5+ Kf3 d3 Kg4 d2 h4 d4 h6 e4 h5 d3 b6 e3 b7 Qd6 h7 Bh6 Ra5 Qc6 Nh3 Na6 b8B Nc7 Qe1 d1N Rd5 d2 Bd3 Ra4 Nf2 Na8 Bc7 e2 Ba5 Bb7 Bb1 Qa6 Nd3 Bc6 Qh4 Be8 Qh3 Bg6 Kf3 g4+ Ke4 Bg5 h6 g3 Qg4 g2 Bc2 Ke7 Ke5 g1Q f6+ Kf7 Bb2 Qgb6 Bd4 Qc6 Re1 Be4 Qe6+ Kg6 f7+ Kh5 f8Q Kh4 Nc5 Kg3 Nd3 Kf3 Bf2 Bf5 Bg3 Ke3 Rg1 Nf2 Rb1 d1Q Rc1 Kd2 Qff7 Qg1 Qh5 Qh1 Qf3 Nd1 Bb1 Nf6 Bc2 Rc8 h8Q Rb8 h7 Ng8 Bb1 Nh6 Bc2 Be7 Bb1 Bc5 Kf6 Rb5 Bc2 Nb6 Qa8 Be3 h8B Qg2 Qb7 Na8 Qh7 Nf7 Qh1 Nh6 Kg5 Nc3 Qf2 Qh2 Nc5+ Bd3 Bd4 Bg6 Kf6 Bh7 Bg6 Qg2 f5 Nd1 Nd3 Qe4 Qff3 Qexe6+
1kbK4/6Q1/r2R4/1q1B1R2/bp1P3q/ppP1r2n/N2P1R2/Q1rRB1b1 w - - 0 1 legal: proof: e4 f5 exf5 g5 a4 d5 h4 gxh4 c3 d4 Na3 Be6 Nc2 c5 Nb4 Nd7 a5 Ndf6 a6 Ne4 cxd4 Nc3 bxc3 cxb4 Bd3 Bc4 Be2 Bxa6 Bd3 Bc4 Bf1 Ba2 Ke2 Kd7 Ke3 Kc8 Ke4 e5 g4 a5 f4 b5 g5 h5 f6 h3 Kf5 e4 f7 b3 Ke6 h2 f5 h4 f6 h3 g6 a4 g7 e3 Nf3 e2 Ne1 Ra6+ Kf5 Qb6 Bg2 Bd6 Ke6 Kb8 Kd7 Ne7 Nc2 e1Q Ba3 Ng6 Bd5 Re8 g8Q Nf4 f8R Qh4 f7 Bb1 Rg1 h1R Rg6 h2 Qg7 Nh3 Nb4 Bc2 Na2 Re1 Qb1 Rc1 Rf6 Bf4 Be7 Be3 Rd6 Bg1 Qb2 h1B Rb1 a3 Qa1 b4 Bf6 Qh8 Bh4 Bd1 Be1 Qh4 Rg8 Bdf3 f8R Bg4+ Rf5 Qa5 Rf8 Qb5+ Bc6 Bd5 Rf7 Re7+ Kd8 Re3+ R7f6 Bf7 Bd5 Be8 Rf2 Bc8 Rf5 Rc2 Rd1 Rc1 Rf2 Qd3 Rf5 Ba4 Rf2 Qb5 Rf5 Re6 Rf2 Re7 R6f5 Re3+
QK1R3B/1b4r1/p1r1pp1q/P3qN2/2R4b/2P2R1Q/4RPpN/1kq1n3 w - - 0 1 legal: proof: d4 c5 g4 h5 gxh5 d5 e4 dxe4 dxc5 b5 Bc4 bxc4 b3 Nc6 c3 Nd4 Qxd4 cxb3 Qd5 Qd6 Qd1 Qd8 Ke2 g5 Ke3 b2 a4 e6 h4 Ke7 a5 Kf6 h6 Ke5 h5 f6 c6 g4 c7 a6 h7 g3 h6 g2 Nf3+ Kf5 Nd4+ Ke5 Nf5 Ra7 Ra2 Bb7 c8R Bd6 Qd3 Qf8 Rc4 Ne7 Rh3 Ng6 Rf3 Nf4 Nd2 b1Q Nf1 Bc7 Bd2 Qc1 Nh2 Qg7 Qd8 Nd3 Qa8 Rc8 h8Q Ne1 h7 Kd5 Rc2 Bg3 Ra2 Bh4 Rb2 Qd1 Bc1 Qf8 Re2 Rc6 Ba3 Qg7 Bf8 Qg6 Bg7 Qc2 Qhb8 Qh6+ Qf4 Qb2 h8R Qa3 Rg8 Qd6 Bh8 Qe5 Ra4 Kc5 Rd8 Kb5 Qg5 Kc5 Rc4+ Kb5 Rc5+ Ka4 Rc4+ Kb3 Qf4 Qc7 Kd4 e3 Qg4 Qg3 Rd2 e2 Qh3 Qgg5 Ra2 Qc1 Rd2 Qb2 Rc2 Ka2 Rd2 Kb1 Rc2 Rd6+ Kc5 Qbc1 Ra2 Rd7 Kb6 Rd6+ Kc7 Rc6+ Kb8 Bc8 Nf1 Rg7 Nh2 Bb7 Rd6 Nc2 Rd8 e1Q Rg4 Qe2 Rc4 Ne1 Rc2 Qe4 Re2 Qe5+
rRnB1N1Q/2r1PPb1/n7/B2N1P2/1n2nbK1/n1n3q1/3BrQB1/n2k4 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 e5 c4 b5 d4 exd4 Ra3 f5 gxf5 Ba6 Rb3 axb4 Rd3 b3 Rg3 b4 Rg4 Bb5 cxb5 hxg4 e4 Kf7 Ke2 Kf6 h4 Ke5 f6 d5 b6 c5 h5 g5 f7 c4 f3 c3 b7 b2 a5 c2 h6 d3+ Kf2 Kd4 Kg3 d2 a6 Ke3 h7 d4 f4 d3 f5 b3 a7 Qc7+ e5 Bg7 Bh3 Ne7 Bf1 Re8 h8B Na6 b8B Nc8 Na3 b1N Bb2 c1N Rh2 Nc3 Rh4 Nd5 Rh1 Ndb4 Ba1 b2 Ne2 b1N Rh5 Nb3 Qc2 d1N Bb2 d2 Nc3 Na1 Bg2 Nf2 Nab5 d1N Nd4 Na3 Ne6 Qd6 Bc7 Ne4+ Kh2 g3+ Kh3 Qd3 Ba5 g4+ Kh4 Re7 Nf8 Rc7 e6 Qd6 Qf2+ Kd3 Qe3+ Kc2 Nd5 Ndc3 Bc1 Kd1 Bd2 Qf4 Qf2 Qe5 Bh3 g2 e7 g1R Bg2 g3 Kg4 Rh1 Rh6 Rf1 Rb6 Re1 Rb8 Re2 Bb6 Bh6 Bf6 Bg7 Ba5 Qd6 Bd4 Qe5 Bh3 g2 Bdb6 g1B Bg2 Rc6 Bc7 Bh2 Bd8 Bf4 Rb5 Rb8 a8Q Rc7 Rb6 Rbb7 Rb5 Ra7 Rb8 Qd6 Qc6 Qe5 Qh6 Ra8 Qh8 Qd6 Nb6 Qd3 Nd5 Qg3+
Q5QN/2r1nnrP/7k/1nP3q1/K1BP4/Rnb5/nNN2qb1/1Bb2N1n w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 g4 h5 gxh5 e5 Bb2 exf4 c4 d4 Bc3 dxc3 Ra2 Qd5 Rb2 Bg4 axb5 Qd3 b6 Qd8 b5 Bc8 Rb4 cxb4 h4 g5 e4 a5 d4 f5 b7 Kf7 c5 Kg7 e5 b3 e6 a4 e7 c2 Kd2 c1N Kc3 f3 Kb4 g4 e8B f2 b6 b2 Ne2 f4 Bf7 a3 Qd3 f3 Qc4 a2 Nbc3 b1N Bh3 a1B Bd5 f1N Qa2 f2 Qc2 g3 Qa2 g2 Rh2 g1Q Na4 Nd7 b8N Na3 b7 Ra7 Nc6 Nd2 b8Q f1N Qa8 Bb7 Ng3 Nb5 Bf5 Rh7 Rh3 Ne5 Bb1 Qf2 Be6 Qdf6 Bd5 Q6f5 h6+ Kg6 h5+ Kg5 Ne2 Ng3 Qb3 Nh1 Ng3 Be7 Nf1 Rg7 Qa2 Bd6 Ra3 Ne7 Bg8 Bc7 Qf7 Ndb3 Qfe8 Ng4 Bc4 Ne5 Qg8 Bb2 h7 Bb8 h8N Nf7 h6 Bf4 h7 Kh6 Ne5 Qg5 Nd3 Bg2 Ne1 Rc7 Nc2 Ba1 Nb2 Be3 Nd3 Bc3+ Ka4 Na2 Nb2 Bc1
1r2NbqQ/N3q2n/1kPQ4/4b3/RrnN3n/PrN1rqnB/2P5/1R2K3 w - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 dxc5 e5 g3 exf4 g4 f3 Kd2 f5 Qe1 h6 Bb2 b6 Qd1 f4 Bf6 Ba6 Ke1 Bd3 Bg5 Bf5 gxf5 hxg5 h4 d5 e4 Kd7 f6 Kc6 h5 g4 h6 g5 e5 d4 a3 f2+ Ke2 b5 e6 g3 e7 b3 e8N b4 h7 g2 f7 g4 Ra2 f3+ Kd2 b2 Rh5 d3 Nc3 b1R Rh6+ Nf6 Qe1 b3 Nd5 b2 Qe2 g3 Ndc7 Nd7 Nb5 Nb6 Rg6 Nc4+ Kc3 d2 Rg7 d1N+ Kb4 Nde3 Kc3 Nf5 Ned6 Nh4 Ne4 Rb8 Rg4 Qe7 Na7+ Kc7 c6 Kb6 Qd3 Re1 Qd2 b1R Kd3 Rb4 Ne2 g1B N2c3 g2 Nd6 Bh2 Rb2 g1Q Rb1 Be5 Bh3 f1N Ne8 f2 Rd4 Rg8 h8Q Nh7 Qh6 Re2 Qd6 Ng3 Rf4 f1Q Rd4 Bfg7 f8N Qgg2 Ne6 Bf8 Rf4 Rg4 Nd4 Rb3 Qe6 Qd5 Qd6 Qg8 Re4 Na5 Rf4 Re3+ Kd2 Qf3 Re4 Rd3+ Ke1 Re3+ Nde2 Rf4 Ra4 Rfb4 Rc1 Rd3 Nd4 Nc4 Rb1 Re3+
q7/1n2R3/qk4qr/1Br1QN2/1n2bn1K/3Q2Pn/P1NQnnP1/B1n4Q w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 e6 Kf2 exf5 Ke1 f4 Na3 Bd6 Bb2 Be5 Rc1 Bd6 Rc4 f3 Bc1 Bg3+ hxg3 Nf6 Rd4 Ng8 Rf4 gxf4 Kf2 Kd7 e4 f5 d4 b5 d6 Kc6 d7 h5 e5 h4 e6 b3 d5+ Kb6 d6 c5 e7 b2 e8Q b1Q Bb2 h3 Qe7 b4 Qee1 h2 Qde2 c4 Qe6 c3 Q1e2 c2 Q6c4 c1N Qc3 b3 Nb5 Nc6 Nc7 Ra5 Nh3 Nf6 Qee3+ Rc5 Qce1 Bb7 Ba1 b2 Na6 Na5 Qe6 Be4 Ng5 Qa8 Qe5 Nb7 Bb5 Rh6 Ne6 Nh5 Rf1 h1N+ Kg1 f2+ Kh2 f3 Kh3 f4 Rg1 f1N Qe3 f2 Qg7 f3 Qh8 Nd2 Rd1 f1N Qe5 f2 Ng7 Nf3 Qe1 Ng1+ Kh4 Ne3 Nb4 f1Q Nc2 Nd5 Nf5 Nb4 Rd4 Nh3 d8Q+ Ka7 d7 N1f2 Qg5 Kb6 Qgd2 Qd3 Qg1 Qda3 Qh1 Q3a6 Nce3 Qd3 Nc2 b1N Rc4 Nc3 d8Q+ Rc7 Rd4 N3e2 Rd7 Qd6 Re7 Qg6 Q8d4+ Rc5 Q4d3 N5f4+
1b2q1n1/B2qQrn1/kq2PN2/3P4/q2nR2B/Q2q2n1/nP3N1K/B4Br1 w - - 0 1 illegal: Other
1qq2QKN/1qQ2P1R/2b1N3/3Nb1nP/1n1b4/1r1P3N/1q2nb1k/n1B2R2 w - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 exf5 b5 a4 bxc4 g4 hxg4 f6 d5 f5 Ra6 Bd3 Rb6 Be4 Rb5 axb5 dxe4 Kf2 Kd7 Kg3 Kd6 Kf4 g5+ Ke3 Ke5 h4 c5 b4 a4 b6 a3 b7 g3 b5 g2 f7 c3 f6 c4 h5 a2 d3 g4 b6 c2 Nc3 g3 Bd2 c1Q Rb1 a1N Na2 c3 Rb3 c2 Ne2 g1N Qf1 g2 Nec3 Qb2 Nd5 c1Q Qf2 Ne2 Qf1 g1B+ Qf2 Bd7 Nf4 Nh6 Rh2 Bc6 Nb4 Bg7 f8N Na6 b8N Nf7 b7 Ng5 Nbd5 Nb4 Na6 Qb8 Nc5 Kf5 Rh4 e5 Rh1 Kg4 Nh3 Bh2 Qf5+ Kg3 Rf1 Qc4 Bc1 Bg1+ Nf2 Kh2 Ng6 Qb5 Qd7 Qc8 b8Q Qbb7 Qdc7 Rd8 Nc3 Rd5 Ne6 Rb5 Nd5 Bh8 Rc3 Bg7 Rc2 Rb6 Kd2 e3+ Kd1 Qd8 Qd7 Nf4 f7 e4 Ke1 Na6 Nc5 Rb3 Qdc7 Nh3 Nh8 Nb4 Qa8 Qdb8 Re2 Q8a7 Qf8 Qab8 Rc2 Qf6 Rd2 Qfd8 Ne6 e2 Ra2 Qdc8 Kd2 e1B+ Ke3 Bf6 Qe5 Bg7 Kd4 e3 Ke4 e2 Kf5 Bc3 Qc7 Bge5 Rb2 Bcd4 Rd2 Ng2 Kg6 Ngf4+ Kh7 e1Q Kg8 Qe3 Re2 Qd2 Re3 Qa2 Rg3 Ne2 Rg7 Ng5 Nh3 Qb2 Rh7 Bgf2
1r1Q1N2/k2PQ2P/2q1b2K/1bq2R1b/8/1n4p1/1PN1rrBB/2q1QQnn w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 Qa4 h5 Kd1 f5 Ra3 f2 Kc2 f4 Re3+ Be7 Re4 f3 Rg4 Bd6 Qb3 Bf4 gxf4 hxg4 Kc3 Nf6 Qd1 Ng8 Kc2 Kd7 Nc3 Ke7 Nb1 Ke8 h4 Kd7 e4 a5 d4 g5 Kd2 c5 Ke3 Kc7 h5 Kb6 d5 c3 f5 g3 d6 c2 f6 g2 e5 c4 e6 a4 h6 c3 f7 a3 f8Q a2 h7 a1R e7 g4 Kf4 g3 Kg5 Qc7 e8Q Qc5+ Kg6 Na6 Bc4 f1B Rh3 f2 Ne2 g1N Bd5 Nh6 Be3 c1Q Na3 c2 Qe1 Ka7 Nf4 Be6 d7 Ng4 Rh5 Rb8 Rf5 Be2 Bg2 f1B Qee7 Nf2 Kh6 Nh1 Ng6 Bh5 Qfd8 Re8 Nf8 Qd1 Bf2 c1Q+ Be3 Bfc4 Nc2 Qf3 Qf1 Qc6 b6+ Ka8 b7+ Ka7 Qa5 Bb5 Qb4 Ra4 Qbe1 Rf4 Bd4 Nh3 Bg1 Rf2+ Qg5 Re7 Bh2 Ng1 Qge3 Q5b6 Qg5 Nc5 Qge3 Nb3 Qg5 Qbc5 Qge3 Rc8 b8Q+ Ka6 Qc7 Rb8 Qd8 Ka7 Qg5 Rd2 Qh4 Rf7 Qhe7 Re2+ Rg5 Rf4 Rf5 Rff2+
B2rrn2/7P/1q1kB3/1r5p/K3B1b1/NNP1Br1P/nQR2nr1/bq4Q1 w - - 0 1 legal: proof: b4 a5 g4 axb4 d4 c5 a4 cxd4 f4 h5 g5 e5 fxe5 Rh6 Ra3 Rh8 Rf3 Bd6 Rf6 Bf8 Rh6 gxh6 gxh6 Qa5 Bh3 Qb6 Bf1 Qd8 Kd2 Ke7 e4 b5 a5 f5 h7 d5 e6 b3 a6 f4 a7 b4 h3 b2 e5 b3 Nc3 b1R Bb5 f3 Nce2 d3 Kc3 b2 Kb3 f2 Kb4 f1R Ka4 d4 Bg5+ Nf6 Bc4 d2 Nc3 d3 Rh2 Rf3 Nb5 Qb6 Be3 Ne4 Ne2 Bg7 Nc1 Rd8 Nb3 Nd7 Qg1 d1N Na3 d2 Rg2 Rb8 a8B Nef2 Bd3 Re8 Bde4 Nf8 Rh2 Rc1 Rg2 b1Q Rh2 Kd8 e7+ Kc7 e6 Ba1 Rg2 Kd6 c3 Nd3 Rh2 N1f2 Rg2 d1R Rh2 Rd8 e8Q Re1 e7 Bg4 Qb5 Rc2 e8B Nb4 Bf7 Na2 Be6 Rd2 Nc1 Ree2 Qb2 Rd5 Nb3 Rb5 Bab7 Re8 Bbd5 Rbd8 Ba8 Nd3 Nc2 Rg2 Na3 Rgg3 Rd2 Rg2 Rc2 Nf2
b3RNr1/3nQb1P/1b2P2q/pR1Bn3/4RK2/2k1B2P/b1bR1Qq1/5rq1 w - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 g4 b5 axb5 h5 d4 cxd4 Nc3 dxc3 gxh5 Qf6 Ra4 Qg5 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 e4 Ke5 b4 g5 h6 a5 h3 d5 c5 f5 b6 d4 c6 d3 c7 Kd4 e5 g4+ Kg2 f3+ Kg3 d2 b5 f4+ Kh2 c2 h7 f2 b7 g3+ Kg2 Be6 Kf3 g2 c8R Ne7 b6 Ba2 Rc7 Nd7 b8Q Rg8 b7 Ng6 Qa7+ Bc5 b8R Kc3 Rb5 Qg5 Qe1 Raf8 Bc4 f1B Rc8 Bb6 Bd5+ Bfc4 Qf2 d1B+ Ke4 f3 Re8 Bcb3 Be3 c1Q Rh2 Qh6 Rb1 Qd2 e6 Nge5 Ra1 Be2 Re1 Bbd1 Qf1 f2 Nf3 g1Q Nh4 Bh5 Ng6 Rf6 Qg2 f1B Nf8 Bf7 Qf2 Rf3 Re2 Qb2 Rd2 Bg2 Rd4 Bh1 Rg2 Qe2 Rd2 Qef1 Rg4 Qfg2 Rh4 Nb8 Qe7 Nbd7 Qe2 Rf1+ Qf3 Qhg7 Kf4 Bc2 Qf2 Q2g6 Bc4 Ba8 Bd5 Q6g2 Rh5 Nc6 Re5 Q7g6 Re4 Nce5 Red4 Qg7 Re4 Qh6+
rr2rn2/k3P1qQ/pbb1BP2/1nqB4/Q1q5/1P3N2/1rQK1QR1/6rR w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 d6 e5 e4 f6 d4 Bb7 d5 Ba6 Nc3 Bc8 Be3 f5 Bd4 exd4 e5 Qd7 Ne4 fxe4 Qg4 Qe7 Qd1 Qd8 f4 Kd7 g4 c5 f5 h5 g5 c4 g6 e3 b6 h3 b3 h4 f6 h2 b7 a6 g7 c3 Qf3 e2 Ra5 d3 Qh5 h3 Qh6 c2 Ra1 c1Q+ Kf2 e1R Qg6 d2 Ra4 d1Q Rc4 Qa5 Rc3 Qg4 Rg3 Nc6 b8Q Qcc4 Nf3 Bb7 Qc2 Na7 Rg2 Ne7 g8B Bc6 Qb6 Kc8 e6 Nb5 Bf7 Rb1 Ke3 Ng6 e7 Rb2 Qd4 Kb8 d7 Bh6+ Qf4+ Qc7 d8Q+ Ka7 d6 Re8 d7 Nf8 Be6 Qg7 Kd2 Qd6+ Bd3 Qdc5 Qa5 Reb8 d8Q Bg5 Rd1 h1R Qa4 h2 Be4 Rg1 Qd3 h1R B4d5 Rh8 Qh7 Re8 Qe3 Bf4 Re1 Bc7 Qf2 Reb8 Re5 Bb6 Rh5 Ng6 Rh3 Rhe8 Rh1 Nf8
n2q1RQ1/n2br1B1/5K2/3P1N2/3PQ1Rp/3r2Rq/BqbRP3/2kr1nr1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 d4 g5 f4 exf4 h4 gxh4 Nd2 b6 Ne4 Qd7 a3 Bb4+ axb4 Qe7 b5 Qd8 Nc5 bxc5 Kd2 Ke7 Kc3 Kf6 b4 Kg5 g4 f5 b6 a5 b7 h5 b5 a4 b6 a3 Rh2 h3 Qc2 c4 Rg2 c5 Qe4 h4 Qb1 h2 Qd3 h1B Bb2 f3 Rh2 Kf4 g5 a2 g6 f2 g7 Ne7 g8R Na6 b8Q+ Nc7 b7 Bd7 Qc2 Ke3 Bg2 f1Q Qc8 f4 b8R f3 Re8 f2 Ba3 Rh7 Be4 Nc6 Nf3 Qh3 Ne5 f1N Ng6 Na7 Rg2 Re7 Rd1 a1R Rd2 Rd1 Rb3 Rb8 Bf5 Na8 Rg4 Be4 Rf8 Rb6 Qb1 Bc2 Bb4 Rf6 Bd3 Rf3 Be4 Bb5 Qe6 Bd7 Qg8 Ref7 Ne7 Rh7 Kb2+ c3+ Ka3 c4 Nf5+ Kf2 Bc5 Ke1 Kb4 Re7 Bd6 Rg3 Kc5 Rd3 Ra3 Bca4 Bf4 c2 Kd6 c1R Be5 c3 Bg7 c2 Rc3 Rf7 Ke5 Re7+ Kf6 Bb3 Qa2 Rb1 Qb2 c1Q Qc2 Ra1 Qb1 Bc2 Ra3 Qb2 Rb3 Rg3 Ra3 Rg1 Rag3 Ra3 Bd3 Rc3 Bc4 Rd3 Ba2 Rb3 Bh6 Be4 Bg7 Ra3 Qd3 Rb3 Qf3 Bc2 Qe4 Rc3 Rdd3 Ra3 Rb3 Kd2 Rbd3+ Kc1 Rd2 Rd3
1R6/QQ2R2n/4r2p/1b1rq1PK/R2nkPNq/r3n3/n1qb1P2/3BNR2 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 a4 b5 e3 f5 d5 f4 exf4 c6 Bd2 cxd5 axb5 d4 b6 Na6 b5 Nb8 Bb4 axb4 Ke2 Kf7 Kf3 Ke6 Kg4 Kd5 c4+ Ke4 b7 e5 b6 d5+ Kh5 h3 g4 h2 g5 h6 c5 d3 c6 d2 c7 d4 Nh3 b3 Be2 d3 Ra3 b2 Qc2 d1Q Qc1 d2 Rf3 Qc2 Bb5 d1N Bf1 Qd4 Rc3 Bb4 Na3 b1N Qd2 Bd7 c8Q Nc6 b8R Nf6+ Kg6 Nh7 b7 Rd8 Be2 Ne3 Nc4 Ra3 Rf1 h1Q Bd1 Qf3 Ra8 Qg3 b8R Ba5 Rd3 Nc3 Ng1 Na2 Kh5 Qa1 Qe1 Bd2 Ra4 Nd4 Nf3 Bb5 Qb7+ Rd5 Qe2 Qab2 Ne1 Nb3 Rc3 Bd7 Nf3 Kf5 Qc8 e4 Na5 Nc4 Qb7 e3 Rd3 Bb5 Nc6 Qd4 Rc3 Qde4 Qd3 e2 Qd4 e1R Qda7 Nd4 Re3 Qe7 Re6 Re4 Ne1 Ne3 Ne5 Qg7 Rd6 Qf6 Ng4 Re6 Rdd8 Qe5 Rd7 Ke4 Re7 Qh4+
1b1N4/Q1B5/PKnB1q1q/R1r1n2B/B1nPq2N/2P3bp/5k2/bQr1n3 w - - 0 1 legal: proof: b4 a5 h4 axb4 a4 c5 d3 f5 h5 d5 Rh4 Bd7 Re4 fxe4 h6 Bb5 d4 Bd3 dxc5 d4 Ra2 gxh6 Ra3 h5 Rb3 Bc4 Rh3 d3 Kd2 h4 Ke3 d2 Rh1 Bd3 exd3 Qc7 Ke2 Qd8 f4 Kd7 Ke3 Ke6 g4 Kd5 g5 b5 c6 e5 c7 h5 c8B h3 d4 b3 f5 b4 g6 h2 f6 b2 g7 h4 a5 b3 a6 Nd7 f7 Ne7 g8Q Nc6 Qg6 Qf6 Qh7 Bd6 f8B Bb8 Na3 b1N Nf3 b2 Nc4 Na3 Rg1 h1Q Bb4 b1Q Qg6 Rh5 Na5 Nc4+ Kf2 e3+ Ke2 e4 Bf8 Nde5 Qe1 d1N Bd6 Ndb2 Qh7 Nbd3 Rg5 h3 Bd7 Qb6 Qd1 Ne1 Nb7 Ra7 Nd8 Rc7 Bca3 Rc8 Qb1 Qh6 Kd1 e2+ Kc1 e3 Nh4 Qe4 Bc7 N6a5 Be8 Qbf6 Ba4 Nc6 Bad6 Qh1 Rg3 N4a5 Kb2 Ng6 Kc3 Ke4 Bb4 Nf3 Rg5 e1B+ Kb2 e2 Ka3 Ke3 Bb6 Bc3 Ba7 e1B Be2 Ba1 Bb6 Nce7 Bd6 Bg3 Kb4 Ne1 Kb5 Qe4 Rc5 Rg5 Bh5 Kf2 Rd5 Rc3 Qf7 Nec6 Qa7 Nc4 Bbc7 Nd2 Kb6 Nc4+ Kb7 Re5 Rb5 Rc5 Ra5 Rd3 c3 Rd1 Qb4 Nge5 Qb1 Ne3 Kb6 Rc1 Be2 Qff5 Bed1 Qff6 Bh5 N3c4+
1b1r4/1Q4PN/1nQ1b3/n1R5/rP1B1kb1/q2r2RK/3P1p2/qRBn1R1n w - - 0 1 illegal: No possible last move, all moves rejected
K1b3r1/Nn3p2/1QB1br1n/1q2P1Pk/qQ1nBR1P/6n1/q2Q3R/Q3b3 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 a4 c5 d4 cxd4 axb5 Nc6 Nc3 Nb8 Bf4 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Qb1 Rh3 Qd1 Rh8 Kf2 d5 e4 a5 h4 g3+ Kf3 g2 c4 a4 b4 d3 e6 a3 b6 d4 e7 d2 e5 d3 Ke4 a2 b7 f3 c5 f2 b5 Nd7 Kd5 Rh6 b8Q Qa5 c6 Rf6 c7 Nh6 Nf3 g1N Qb6 Nc5 Nd4 Nf3 Bg2 f1N Rh2 Ng3 Nc6 Nd4 Be4 Nb7 Na7 Rb8 Qc1 d1B Qd2 Bdg4 Rf1 a1Q Rf4 Kd7 e8B+ Ke7 Qe1 d2 Bc6 d1Q Qe3 Qda4 Qd2 Bcf5 c8Q Q5b4 Be8 Q1a2+ Qc4 Qbb1 Bc6 Bc8 Qba5 Bgd7 b6 Ke8 Qac3 Bb4 Qa1 Kf8 Qb3 Kg7 Qc4 Nc5 b7 Be6+ Kd6 Ra8 b8Q Nb7+ Kc7 Bc3 Qc5 Qbb5 Qb6 Bb4 Bg2 Kg6 Bh1 Bcd7 Bhe4+ Kh5 Qf8 Bc3 Qd6 Rg8 Qb4 Bc8 Kb8 Qe2 Ka8 Qeb5 Qg2 Be1 Qf2 Ndf5 Qfd2 Nd4
6Q1/2bPn3/1kNP1R2/1rrbr1r1/2q1PqB1/B3BRp1/1n3Q2/1KB2q1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nc4 f3 Ne3 Rh5 Ng2 fxg2 Ra6 Rh3 Ra1 Rh8 h4 Kd7 d4 a5 Kd2 c5 Kc2 Kc7 e4 f5 b4 g5 d6+ Kb6 d7 a4 h5 a3 h6 f4 h7 g4 d5 c4 Qd3 f3 Bh6 c3 Rh2 a2 Bf4 f2 Re1 a1Q Rb1 Qa6 Re1 Bb7 Nf3 g1N Bh3 f1Q Ne5 g2 Qd2 Bd6 Kb1 Qf8 Nc6 Bc7 d6 Ne7 Qa2 g3 Bg4 Rg8 h8B Nh3 Bc1 g1R Rf2 Qf4 Re3 Rg5 Ref3 Qa4 Qg8 Na6 Bd4+ Nc5 Be3 Ra5 Qf8 Ba8 Qf5 Kb7 b6 Nd3 b5 Nb2 Bc5 Qac4 Ba3 Qd1 Rf1 Nf2 Qc5 Nh1 Qe3 Qf8 Rf6 Rg2 R1f3 Qdf1 Qg1 Rd2 Qf2 Rdd5 Nd4 Kb8 b7 Ka7 b8B+ Kb6 Nc6+ Rc5 Qe1 Rce5 Qf2+ Kb7 b6 Rab5 Ba7 c2+ Ka1 Ka6 b7 Qff7 b8Q Bb7 Nd4 Bd5 Nc6 Qf8 Be3 Qf7 Rh6 Qf4 Qg8 Kb7 Rf6 Ka6 Nd4 Kb6 Nc6+ Qc5 Qg2 Rb3 Qf2 Qd4 Ka2 Qc5 Bcd2 c1R Be1 Rc4 B1d2 Rb5 Bc1 Qd4 Ka1 Rcc5 Kb1 Qdc4
n1k2qR1/2P1q2P/2r2q2/1b6/1Q1bBnKr/1nQ4P/rQpN3R/2Q1Nn2 w - - 0 1 legal: proof: f4 b5 g4 c5 a4 e5 axb5 h5 gxh5 exf4 c4 d6 b4 Kd7 Bb2 Ke7 Bd4 cxb4 c5 Kd7 c6+ Ke8 Bc5 dxc5 Kf2 a5 Kf3 g5 d4 f5 e4 g4+ Kf2 b3 h3 f3 Kg3 c4 d5 c3 b6 a4 h6 a3 b7 c2 e5 f4+ Kf2 g3+ Ke1 g2 Kf2 a2 d6 b2 e6 Ne7 c7 Bg7 Bb5+ Nd7 b8Q Ng6 e7 Bd4+ Ke1 f2+ Ke2 f1Q+ Kd2 f3 Rh2 f2 Qc1 Ba6 Bd3 Nf4 Nf3 g1Q Be4 Qg5 Ne1 Qf6 Qb4 Bb5 Qc3 Nb6 d7+ Kf7 Qb4 Ke6 e8Q+ Qde7 d8Q Ra5 Qb8 Na8 Qg6 Kd7 Qg3 Ra4 Qb6 Kc8 Qgc3 Qff8 Qf6 Ra6 Qg7 Rc6 h7 Qff6 Na3 b1R Nc4 Rg8 Qh8 Rb2 Rb1 a1N Qg7 Be5 Ke3 Nb3 Kf3 Ra2 Nd2 Bd4 Q3b2 Rd8 Qg3 Rd5 Kg4 Rh5 Qf3 Qh1 Qfc3 f1N Bg6 Qd5 Be4 Qdf7 Ra1 Ra7 Ra6 Qff8 Rb6 Ra2 Ra6 Bd3 Ra5 Bc4 Rg5 Bb5 Rg8 Rh4+
R5b1/2PK1pn1/rrP1n1q1/1n1b2Rr/7B/1q3B1Q/3NP1B1/1Qr2qkB w - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 f4 g5 h4 gxf4 g4 e5 g5 Be7 g6 Bg5 Nd2 e4 Ndf3 exf3 hxg5 Qe7 Bg2 Qf6 Bf1 Qd8 Kf2 Ke7 c4 Ke6 a4 Ke5 c6 Ke4 c7 b5 g7 h5 a5 d5 g6 b3 c5 h4 a6 b4 a7 d4 c6 d3 Ra3 b2 Ra6 b1N Bb2 h3 Rh2 b3 Rh1 h2 Ra3 d2 Bf6 b2 Ra1 Ne7 g8B Bf5 g7 Nc3 Bh4 b1R Nh3 Rb6 Bg5 Nb5 Bh7 Qd3 g8B Na6 Bh4 Nc5 Qb1 d1Q Rg1 h1B Bg2 Qb3 Ng5+ Kd4 Ra2 Ne6 Ne4 Qdc2 Bg6 Rh5 Nd2 Be4 B8h7 Nf5 Ra6 Nfg7 Bf5 Bd5 Bg4 Qg6 Ra1 Qh6 Be4 Qg6 Kf1 f2 Bg4f3 Ke3 Ra2 Rab8 a8Q Ra6 Ra1 Rbb6 Qh8 Bc4 Bd5 Bd3 Ra5 Qg4 Qc8 Bh7 Bde4 Qg6 Qd7 Ned4 Qh3 Bg8 Bg4+ Nf3 Ra4 Rb8 Bd5 Rab6 Ra8 R8b7 Be4 Kd4 Bd5 Ng5 Bge4 Ra7 Rg3 Raa6 Rg2 N5e6 Rg1 Rh7 Bh5 Bf3 Rg5 Ke3 Bg3 Bg4 Kg2 f1R Bh4+ f3+ Kg3 f2 Bh1 Rc1 Bdg2 Bf3 Bg4 Bd5 B4f3 f1Q Kg4 Rh5 Kg3 Qh6 Kg4 Ne8 Kf5 N8g7+ Ke5 Qh7 Kf6 Qhd3 Ke7 Qg6 Rg3 Kf2 Kd7 Kg1 Rg4 Qb2 Rg5 Qb3
3Q1bbr/R1bBb1r1/K7/5pnP/n4R1Q/kPN2rP1/1r3R2/1qB2R1r w - - 0 1 legal: proof: f4 b5 c4 g5 a4 gxf4 axb5 e5 g3 d5 cxd5 h5 Bh3 h4 Bf1 h3 Qc2 Rh4 Qe4 Rh8 Qg2 hxg2 Na3 e4 Nc4 Rh7 Ne5 Rh8 Nef3 exf3 h4 Kd7 e4 Kd6 d4 f5 Kd2 c5 Kc3 a5 Kc4 a4 h5 a3 b6 f2 Kb5 c4 b3 a2 b7 c3 Bb2 c2 Re1 a1R Nh3 c1B Be2 g1B Rf1 f3 Nf4 Nf6 Rh4 Na6 b8R Ra2 Rb7 Nc5 Ra7 Nh7 Bd3 Qg5 Ne2 Be6 Nc3 Na4 Ka6 Bg8 Bb5 Bf4 Bc1 Rb2 Bd7 Rb8 Rh2 Rb7 Rg2 Qf6 Rh2 Ng5 e5+ Ke7+ e6 Bc7 Rh4 Kd6 e7 Qe6 e8Q Qe4 Rf4 Qb1 Qe4 Be7 Re1 f1R Rd1 Rff2 Rf1 Rfe2 Rf2 Re3 Rf1 f2 Qh1 Rf3 Qh2 Bf8 Qh4 Ke7 d6+ Kf7 Re1 f1R d5 Bc5 Re2 Kf6 Rf2 Ke5 Be6 Rh1 d7 Kd6 d8Q+ Ke5 d6 Bb4 d7 Kd6 Qe8 Kc5 d8R Be7 Rd1 Bf8 Bd7 Ba3 Ne4+ Kb4 Qd8 Bcd6 Bc8 Rg7 Rdf1 Bc7 Nf6+ Kc3 Bd7 Bae7 Ne4+ Kb4 Nc3+ Ka3
b4B2/4PQbK/2k1b2n/r1r5/1nb3r1/R1N2qr1/pP1N2P1/QR3rQQ w - - 0 1 legal: proof: c4 c5 h4 b5 a4 g5 axb5 gxh4 f4 e5 e3 exf4 Rh2 d5 cxd5 c4 Be2 c3 Na3 c2 Bc4 Bd7 Ba2 Bc8 Bb1 cxb1R Rh3 Be7 Rh1 Bf8 Ke2 Kd7 Kd3 h5 Ke4 f5+ Ke5 a5 d4 a4 d6 h3 e4 h2 b6 h4 d5 h3 b7 f3 Nc2 f4 Kf5 f2 Kg6 f1B e5 a3 Be3 a2 Ne2 f3 Na3 f2 Nc4 Rc1 Bh6 Na6 b8Q Bb7 Qa7 Nb4 Qad4 Ra5 e6+ Ke8 e7 Kd7 Qg7 Qa8 Qf7 Rh7 Bg7 Rh4 Bh6 Re4 Kh7 Rg4 Bg7 Nh6 Qd4 Kc8 d7+ Kc7 Qc5+ Bc6 d8Q+ Kb7 d6 Rc3 Rg1 h1R d7 h2 Rc1 Rcg3 Rc3 Bd5 Ra3 Be6 Nc3 Bd3+ Ne4 f1B Qe3 Bb1 Qc1 Bc2 Qa1 Be2 Rb1 Rc1 Bc3 h1R Bg7 Ka6 Qc7 Kb5 d8Q Bb3 Qcf4 Bf3 Qd4 Qd5 Qf4f6 Rhf1 Ncd2 Rc5 Qg1 Bc4 Qh4 Qd3 Qhh1 Qb3 Nf2 Ba8 Nd1 Qf3 Nc3+ Kc6 Be5 Bg7 Bd4 Bh8 Bg7 Nf5 Bf8 Nh6 Rb3 Bf6 Ra3 Bg7
4N1B1/P3b3/3B3k/1rN4b/3Npr1r/PN2Q2P/rn3nbq/bbKRQ3 w - - 0 1 legal: proof: f4 a5 b4 d5 bxa5 f5 e4 g5 c4 fxe4 cxd5 Bd7 g4 Bc8 a3 gxf4 g5 h5 Ra2 Kf7 Rc2 Nc6 Rc3 Ke8 Rg3 Nb8 Rg4 hxg4 d4 Kf7 Kd2 Kg6 d6 c5 d7 b5 a6 e5 d5 b4 a7 b3 d6 e3+ Kc3 f3 Kb2 c4 h3 e2 Qd5 e1R Nc3 e4 Rh2 g3 Rf2 g2 Rc2 f2 Qc6 Nf6 Nd5 c3+ Kb1 b2 Bd3 f1B Bc4 Qc7 d8N Re2 d7 Na6 Nb7 Rh4 d8N Qh2 Ne6 Be7 Nf3 g1B Qb6 Nb4 Na5 Ng4 Rd2 Rb8 Nfd4 Bg2 Rd1 Nf2 Bf4 Nbd3 Nab3 Ba6 Qa5 Rb5 Nec5 Kh7 Bd6 c2+ Ka2 c1R g6+ Kh6 g7 Rec2 g8Q b1B+ Ka1 Re2 Nc7 Nb2 Qe1 Rc3 Ne8 Rf3 Bf7 Rff4 Qg3 Bc8 Qf3 Bg4 Bg8 Bh5 Qfc3 Nh1 Qf3 Be3 Qfg3 Nf2 Qf3 Bd2 Qd3 Bc3 Qe3 Bd3 Ka2 Rc2 Kb1 Rd2+ Kc1 Bb1 Na5 Nc4 Qg3 Ra2 Nab3 Ba1 Qge3 Nb2
Q2nN3/3nb1B1/Kp2bbkP/1Q2r3/nRrb1P2/1n1R1QqN/2P3r1/6Q1 w - - 0 1 legal: proof: g4 c5 e4 h5 b4 a5 d4 cxd4 f4 f5 exf5 axb4 Bh3 g6 fxg6 Ra3 g5 Ra8 Bg4 hxg4 Kd2 d5 Kd3 e5 h4 b6 a4 b3 g7 Kf7 a5 b2 a6 g3 h5 e4+ Kd2 g2 a7 d3 Kc3 e3 h6 d4+ Kc4 e2 Kb5 e1B Be3 d2 Ra6 d3 Qg4 d1N Qf5+ Nf6 Qe4 d2 Na3 b1N Nc4 Nb2 Rh2 d1R Bc5 Nfd7 Bf2 Rd4 Rh3 Rg8 Rd3 Be7 Qf3 Bc3 Ra4 Kg6 Rb4 Nd2 Nh3 g1B Nd6 Nb3 Ne8 Rc4 Bd4 Nc6 Be5 Rb8 a8Q Na4 Bf6 Rb7 Ka6 Bgd4 Be5 Qc7 Bf6 Nd8 Be5 Kf5 g6 Qc6 Bf6 Qe4 Be5 Qe1 Bf6 Qg3 Be5 Rf8 g8Q Rf7 g7 Kg6 Qh8 Rf5 Qg8 Bb2 Qgd5 Rg5 Qb5 Rbc7+ Qab7 R7c5 Bf6 Rce5 g8Q+ Kf5 Bg7 Kg6 Qf1 Nf8 Qa1 Be6 Qg1 Nd7 Q7d5 Qf2 Qf8 Rg2 Qf3 Qg3 Qg8 Re3 Qh8 Bdf6 Qg8 Bbd4 Qf8 Re5 Qg8 Bf5 Qgd5 Bg4 Qa8 Be6
N3b3/b2q3r/N2qb3/nRqP1q2/Bp1R2Q1/1Pbn1QNP/3K2Nk/4r3 w - - 0 1 legal: proof: g4 c5 d4 h5 e4 hxg4 c4 d5 b3 f5 exf5 cxd4 cxd5 a5 Qd3 a4 Qd1 a3 Bb2 axb2 a4 Kd7 f4 Kd6 a5 e5 f6 b5 f5 g5 a6 d3 h3 b4 a7 d2+ Ke2 e4 f7 Ke5 f6 Kf4 Ra2 Kg3 Ra3 e3 Rh2 Be6 Ra4 Bg7 f8Q Rh7 f7 Qd6 Nf3 Nc6 Qc1 d1B+ Kd3 e2 Qc2 e1Q Qc4 Ne5+ Kd4 Ne7 Qg8 Re8 Qe2 N7c6+ Ke3 Nd3 f8N Na5 a8N Bc3 Nbd2 b1Q Nh4 Qc2 Rf2 Ree7 Ng2 Kh2 Rf6 g3 Ne4 g4 Nd7 Re8 Rf4 Ree7 Nh4+ g2 Ndc5 g3 Na6 Qb1 Qg4 Bc2 Nf2 g1B Rd4 g2 Ra1 Qed1 Qef3 Qdc1+ Ke2 Qcf4 Ne4 Qd7 Ra4 Qfd6 Ng3 Bf2 Ra2 g1Q Ng2 Re8 Rc4 Ba7 Rd4 Nb2 Ra1 Bg6 Ra4 Qf5 Ra2 Nac4 Ra5 Nd3 Rb5 Na5 Kd1 Bb2 Kd2 Ree7 Rc4 Qgc5 Rd4 Be8 Rb8 Ne1 Bb5 Nd3 Ba4 Ba1 Rb5 Bc3+ Ke2 B6f7+ Kd1 Re5 Kc2 Be6 Kd1 Re1+ Kc2 Ba1+ Kd2 Bc3+
3B1Q2/R1p3BN/2P4Q/q3Q1NP/3Qb1Kr/qP6/bb2nb1q/3rbb1k w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 e5 Qh5 e3 Bc4 e4 Bf1 Nd7 Qd1 Ne5 fxe5 g5 g4 Bb7 Bh3 Bc8 Ra6 h6 Rf6 h5 Rf4 gxf4 g5 Bf5 Bg4 hxg4 Qe2 Bd7 Qd1 Bc8 Ke2 Kd7 h4 Ke6 d4 Kf5 c4 a5 b6 a4 b7 f3+ Kf1 Kf4 b8B Kg3 g6 f5 e6 a3 c5 a2 c6 a1B e7 e2+ Ke1 Kg2 e8Q f2+ Kd2 f1B Ke3 e1Q+ Kf4 e3 d5 g3 d6 e2 d7 Ne7 g7 Nd5+ Ke5 f4 Kf5 f3 g8Q f2 Nc3 Qe7 Nh3 Nf4 Qh7 Qa3 Ne4 Bc5 Kg4 Qea5 Nhg5 e1B Qd4 Bd3 Nf6 f1B Qee5 Be4 Qh6 Ne2 Nfh7 Ba6 d8Q Bc4 Q8d6 Ba2 b3 Bb2 Ba7 Rad8 Qdf8 Rd7 Rg1+ Kh2 Rg2+ Kh1 Rf2 g2 h5 g1Q+ Rg2 Qh2 Be3 Re7 Bf2 Rf7 Bh4 Rf3 Rf2 Rh3 Bb6 Qa7 Ba5 Rg8 Bc3 Q7a5 Rg2 Ng1 Rd2 Ne2 Rd1 Rg6 Ra1 Rf6 Ne6 Rff3 Bd8 Rd3 Neg5 Bb6 Bb4 Ba7 Bbe7 Bc5 Bf6 Rd1 Bg7 Bb6 Rc1 Ba7 Rc4 Bb6 Rb4 Ba7 Rb7 Bc5 Ra7 Bb6 Qdd5 Bbf2 Qdd4 Rh4#
3R2NB/1rb1K3/4B1Q1/bn1P1QP1/k1qb3p/q3r2b/1R1Q1P2/qqQb4 w - - 0 1 legal: proof: c4 d5 g4 dxc4 e4 g5 a4 b5 h4 f5 Nc3 Bd7 axb5 fxe4 h5 Bc8 Nd5 Nd7 Nf4 Ne5 Nfh3 Ng6 hxg6 Qd6 Nf3 Qd8 Nh4 gxh4 Ng1 h3 g5 Qd7 Qc2 Qd4 Qd1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 e5+ Kf5 h5 d4 a5 b4 c3 b6 c4 g7 Kc6+ Kg6 Kb5 Kf7 c2 d5 h2 b7 h4 b8Q+ Qb6 Ra4 e3 Qc7 e2 Qd8 e1B Qg4 e4 Qe2 e3 Qd2 e2 Ra3 a4 Qd1 c3 Qe7 Rh7 Qd2 Nh6+ Ke8 Nf7 g8Q Bg7 Qe5 Nd6+ Ke7 Bh3 Bb2 c1Q Rb3 c2 Nf3 a3 Nd4+ Ka4 b5 a2 Nf5 a1Q Nh6 Qa3 Qge6 Qca1 Q5f5 c1Q Ng8 Qc4 Qeg6 Rc8 Rg1 h1B Bf6 Be4 Rb2 Bf3 Be5 Qb8 b6 Rc5 b7 Nb5 Qc1 Ba5 Bg2 Bfg4 Re1 Bc7 Qd2 Bh5 Reb1 e1B Rc1 Qa7 b8Q Qb1 Qbc8 Bd1 Bf3 Qaa1 Bg4 Rc6 Bd4 Rb6 Rc3 Rb7 Re3 Rh8 Re6 Bge5 Rd6 Qa8 Bc3 Bd4 Rd8 Qa5 Qe4 Qa6 Be6 Rh6 Qgf5 Rf6 Qg6 Rf3 Qef4 Re3 Qff5 Ba7 Bh8 Bd4 Qc1 Bea5 Qb8 Bde5 Qa7 Bec3 Qd4 Qa7 Qdd3 Bd4 Qdd2 Qac5+ Ke8 Qca3 Kd7 Nd6 Ke7 Nb5+
1r2Q1q1/kq2Pq2/P2b4/5Pb1/2bqQR2/K1Qbn1p1/6NQ/N2RrbB1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 h5 Qb3 f5 Ng1 f3 Qc2 f4 Bh3 Nc6 Qb3 Nd4 Qd1 Nf5 gxf5 Ra5 Bg4 hxg4 Qc2 Ra3 Qd1 Ra8 d4 Kd7 Kd2 g5 Kc2 c5 Kb2 Kc7 h4 Kb8 a4 b5 e4 g3 h5 f2 a5 f1B h6 f3 h7 f2 a6 b3 e5 c4 e6 g2 d6 c3+ Ka3 b4+ Ka4 g4 d5 c2 d7 b2 d6 g3 Ne2 g1Q Qd5 b3 Qc4 Nf6 Ka3 Ka7 Nf4 Ng4 Nd2 b1Q Qc3 b2 Nb3 Ne3 Rh4 Bd3 Ng2 f1B Rf4 Rb8 Bd2 Qe7 d8Q c1B Qe8 Qf7 Qec6 Be7 Qe4 Re8 h8Q Qc2 Qh2 b1Q+ Qb2 Bg5 d7 Qc4 d8Q Bb7 Be1 Bd5 Bf2 Bd2 Qc3 Qc8 Qce5 B5c4 Qc3 Qcb7 Qe7 Qd1 Qd8 Qg4 Rd1 Re7 Na1 Bc1+ Ka4 Ba3 Qc8 Bd6 Qe8 Qh1 Bg1 Qg8 Qh6 Qhh5 Qh7 Qhf7 Qh2 Rc7 e7 Rc6 Nb3 Rb6 Na1 Rb1 Rd2 Re1 Rd1 Bc7 Ka3 Qh4 Rf2 Qhh8 Rf3 Qd4 Rf4 Bd6+
6K1/Qr3n2/3qb3/R2RN3/P1Q1r1P1/n1pnQ3/2n1NqPq/rk1q1Q1B w - - 0 1 illegal: Other
3n1r2/PNQnp1Rq/4r1Q1/1rBkB3/5q2/2Kq1n2/rQP1PQb1/5q1N w - - 0 1 legal: proof: b4 a5 f4 axb4 a4 c5 d4 Qb6 dxc5 Qc6 g4 Qb6 g5 Qd8 g6 Ra5 Ra2 Ra8 Bh3 h5 Bg4 hxg4 Ra3 Rh5 Re3 Rh4 Re6 Rh8 Rf6 gxf6 Qd5 Bh6 Qd1 Bg5 fxg5 Ra6 Kd2 Ra5 Ke1 Ra8 Kd2 b5 h4 d5 c6 b3 h5 b2 g7 d4 h6 d3 c7 Kd7 a5 Kc6 a6 b4 g6 f5 h7 g3 Na3 b1Q Qf1 b3 Qf2 g2 Nb5 f4 Rh5 f5 Rh1 b2 Rh4 f3 Qd4 f2 Rg4 f4 Qe3 f3 Rg5 Bh3 Rf5 Nf6 Nd6 Rf8 h8B f1R c8Q+ Qc7 g8Q f2 g7 Nfd7 Re5 Qa2 Rh5 b1R Ba3 Qf7 Nb7 Rb5 Rh7 Kd5 Bc5 Nc6 Qg3 Qe5 Qc7 Nd8 Qf4 Qh5 Qf6 Ra1 Qb2 f1Q Kc3 d2 a7 Rc8 Qh2 Rc6 Qc7 Bg4 Nh3 g1N Nf2 d1Q Nh1 Re6 Qg3 Q7f2 Qc7 Bf3 Qf7 Bg2 g8Q Ra2 Qgg6 Qfh4 Qf2 Nf3 Rf7 Qh7 Be5 Qf4 Rg7 Qd3+
1rbn4/5r1r/1Q4rR/K3PNr1/Nb1Q2Np/R1b2nP1/1Pk1N1B1/5nb1 w - - 0 1 illegal: No possible last move, all moves rejected
2Q5/1B3kN1/2P2B2/r1r1R3/1r1nn1rb/4Q1B1/bpPbPn1B/1Nn2K1r w - - 0 1 illegal: No possible last move
q3R1n1/2N1qp2/n1q1N1k1/1q1QPqbb/3NPP1Q/bN3n2/R1K5/3B2b1 w - - 0 1 legal: proof: c4 b5 b4 h5 g4 hxg4 Nf3 a5 Ba3 axb4 Bc1 b3 Nc3 b4 Ng1 Ra5 Nb1 Rb5 cxb5 g5 e4 Rh5 d4 Rh6 Bf4 Re6 Bd6 Re5 dxe5 exd6 Kd2 c5 a4 g3 h4 g2 f3 c4 h5 c3+ Kd3 d5 a5 b2 a6 b3 a7 g4 a8N d4 b6 d5 b7 c2 h6 c1B h7 g3 h8N Ba3 Ra2 Qe7 Ra1 Kf8 Rh7 Na6 b8Q Bg5 Qb4 Bg4 f4 Bh5 Nh3 g1N Qbd2 g2 Q1e1 Nf3 Qec1 g1B Rh6 Kg7 Re6 Kh7 Ra2 Kg7 Ke2 d3+ Kd1 d4 Be2 Kh7 Qe1 d2 Nc7 Kg7 Qh4 Kh7 Nc3 b1Q Nf2 b2 N3b5 Qa1 Nd3 b1Q Nc5 Qc3 Nb3 Qc6 Ng6 Qd3 Nd6 Qdb5 Nf5 Qa8 Kc2 d1Q+ Kb1 d3 Nd4 Qe1 Qd1 Qc3 Nf8+ Kg7 Qd2 Qcc6 Qa5 d2 Bd1 Qec5 Re8 Qe7 Nfe6+ Kg6 Be2 Qcb6 Kc2 d1Q+ Kc3 Qf1 Kc2 Qh3 Bd1 Qf5 Qd2 Qbb7 Qa5 Q5c6+ Qc5 Qcb5 Qd5 Q7c6+
r1Bb3K/3pbk2/1N1Pn2q/1Q3N2/r1rR1qn1/1q1R1R2/2PnPQp1/3R4 w - - 0 1 legal: proof: f4 c5 a4 e5 b4 exf4 g4 b5 axb5 cxb4 Bh3 f3 Bg2 Ne7 Bf1 Ng8 Na3 f5 Bb2 f4 Bc3 h6 Nb1 Bb7 Bf6 Be4 Bg5 Bf5 gxf5 hxg5 Kf2 a5 h4 g4 d4 g5 f6 b3 f7+ Ke7 h5 a4 h6 a3 d5 b2 b6 a2 h7 Nh6 b7 Qb6+ Qd4 Na6 b8Q Nc5 Rh3 Ne6 Na3 b1Q Bg2 Q1b3 Rd1 a1R Nc4 R1a4 Rg3 Qa6 Qb5 Rc8 Nb6 Rcc4 Qdc5+ Kf6 Bh1 Be7 f8R+ Kg7 Rf6 Ra8 h8R Bd8 Rh3 Be7 Rc8 Bd8 Rc6 Kg8 Rd6 g3+ Kf1 g4 Qf2 g2+ Ke1 g3 Kd2 Qa2 Kd3 Ng4 Rf7 Nd4 Ke4 Ne6+ Kf5 Qb3 Kg6 Be7 Qe1 f2 Nf3 g1B Nh4 f1Q Nf5 f3 Qf2 Bd8 Rd4 Qc1 Bg2 Qf4 Rh1 Bh2 Rhd1 Be7 Rh7 Kf8 Rh3 Ke8 Kh7 Kf7 R1d3 Bd8 Kh8 Bg1 Qe1 f2 Be4 f1N Qf2 g2 Rhf3 Be7+ Nc8 Bh2 Rd1 Qfe3 R4d2 Qa5 Rd3 Bd8 Nb6 Qad2 Rc6 Bg3 Rc5 Qg5 d6 Qdf4 Rcd5 Nd2 R5d4 Bh4 Bb7 Qg6 Ba6 Bhe7 Bc8 Qgh6+
1K2n1Bb/5prB/2r4Q/P3Nbr1/1PP3r1/3prQ1N/1n3n1k/q2N2RN w - - 0 1 legal: proof: d4 e5 f4 a5 fxe5 c5 g4 h5 gxh5 cxd4 b3 a4 Na3 Rh7 Rb1 Rh6 Rb2 Rh8 Nb1 a3 Nd2 axb2 a4 Be7 Nb1 Bf8 Bg5 b6 Be7 b5 Ba3 b4 Bg2 bxa3 b4 Bc5 Bf1 Bf8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 h4 d3 e4 g6 c4 d2 h6 a2 a5 a1R h5 d4 h7 Bc5 h6 Nc6 Nh3 Nf6 Bd3 Ra3 Rg1 Rg8 h8Q Ra6 h7 Rg7 Nc3 b1R Qf3 Ne8 Nd1 Qd5 Bc2 Re3 Qf8 Be7 h8N Bf6 Bd3 Qb5 Bc2 Qa4 Bd3 Rh7 Qh6 Qa1 Bc2 Rg7 Bd3 Ke7 e6 Kd6 e7 Ne5 Bc2 Ng4 e5+ Ke6 Bd3 Nf2 Bc2 Nd6 e8B Rc6 Be4 d3 Bd7+ Ke7 e6 Ne8 Bf5 Kd6 e7 Rb2 Be4 g5+ Kf5 g4 Ng6 g3 Ne5 g2 Kf4 Qa2 Bdf5 Qa1 Bh7 Bf5 Bg8 Rg5 Qf8 Bh8 Qh6+ Nf6 e8N+ Ke6 Nc3 d1N Ng7+ Kd6 Nh5 Rb1 Na2 Nb2 Ng3 Rd1 Nh1 Rd2 Qh7 Ne8 Nc3 Rg7 Nd1 Rde2 Re1 g1R Qh4 R1g5 Rg1 Ng4 Qh5 Rg2 Qh7 Nf2 Qh6+ Kc7 Ng6 Kd7 Ke5 R2g4 Kd5 Rf6 Kc5 Ke6 Kb6 Kd6 Ka7 Re6 Nh4 Ke5 Kb7 Rc6 Kb8 Bd7 Beh7 Bf5 Qe2 Rge4 Qeh5 Reg4 Ng6+ Ke4 Re1 Kf3 Ne5+ Kg2 Rf1 Rf4 Rg1+ Kh2 Qf3 Rfg4
7n/N1Rb2n1/B1q1P1r1/3rnN2/1kp1rKRQ/3R2pb/RP1P2rQ/6b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 cxd5 Na6 Ra2 Nc5 Ra1 Nb3 Nb1 Nxc1 Kf2 Ke7 h4 Kd6 e4 Kc5 h5 a5 e5 f5 h6 g5 d6 g3+ Kf3 g4+ Kg2 a4 e6 a3 d7 a2 h7 Kb4 b6 c5 b7 c4 b8Q+ Qb6 d8R Bc5 Rh3 f3+ Kh1 f4 Na3 g2+ Kh2 f2 Qe5 f3 Kg3 Nh6 Rd5 Rd8 h8R Qc6 Qe4 Nd3 Rh1 Ne5 Qde1 Bd7 Rh2 Nhf7 Rg8 Nh8 Kf4 g3 Ne2 g1R Rh7 Rg2 Nd4 Rac8 Bd3 f1B Nab5 f2 Rg4 Rg8 Be2 Rg6 Na7 Rd8 Nf5 Bb6 Rd3 Bc5 Rc1 a1R Bf3 Bd4 Q1e2 Ra5 Ra1 Rd5 Rf7 Rdg8 Nc8 R8g7 Ra7 Rh7 Ra6 Rh4 Ra2 Qa4 Nfd6 Rg1 Kf5 Bb5 Rg5 Bh3+ Qg4 f1N Be4 Rc5 Bb7 Rd5 Qh2 Rg2 Ba6 Bg1 Rc7 Bd7 Na7 Ne3+ Ke4 Nf5 Qf4 Ng7 Nf5 Rf2 Ke3 Qc6 Qg4 Rd6 Qh5 Rhd4 Rg4 R6d5 Qh7 Nef7 Qh6 Rg2+ Kf3 Re4 Qh4 Re3+ Kf4 Ne5 Ra1 Re1 Ra2 Re4+
Q4QQ1/1Pk1K2r/nnPpbr2/Qr1Rp1N1/n4R2/n4b2/1P4bN/4q2B w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 g4 Nh6 h4 Na6 f4 Nb8 f5 Na6 Bf4 gxf4 g5 Ng8 g6 Nb8 Kd2 Bh6 Ke1 Bg5 hxg5 Ba6 Nh3 Bb7 Ng1 Bc8 Ke2 a5 c4 e5 c5 h5 g7 f3+ Kd2 d6 g6 Kd7 b6 f2 b7 d3 Kc3 e3 Kc4 e2 Kd5 e1R c6+ Kc7 f6 a4 f7 a3 f8Q d2 Qe2 d1N Qff3 h4 Qg4 h3 Qec4 h2 Bh3 f1B Qf3 a2 Qc5 Ra5 Qf8 Bg2+ Nf3 Qh4 Rf1 h1B Nc3 Rh7 Ne4 Na6 Nh2 Rb5 Rf4 Rf1 Rc1 Rf3 Ng5 a1N Bf5 Qe1 Be4 Rf2 Rc4 Bch3 Rd4 Nc2 Qa8 Bf3 Qf8 Bh3g2 Ke6 Ne7 g8Q Nc3 g7 Nc8 Rd5 Nb6 Ke7 Na3 Qa8 Bh3 Qgf8 Nca4 Qb4 Be6 Qa5 Bf7 g8Q Bfg2 Rg4 Rf6 Rf4 Bf3 Bd3 Bhg2 Bf1 Bh3 Bg2 Bhe6 Bh1 Bg2 Qfg7 Bh5 Qgf8 Bhf3 Qg8 Rh3 Q7f8 Rh7+
2B2rk1/2n2b1r/1q1rQ1P1/1Rr3p1/RRP2b1q/1nnQNP2/3p2BK/4R3 w - - 0 1 illegal: No possible last move
1RR5/3KR3/PbQn2N1/P4q1R/B3pnr1/1b3pP1/bQqqk3/1q1rB3 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 gxh4 bxa5 Qd6 Nh3 Qd7 Ng1 Qd8 f4 e6 f5 exf5 e4 Qg5 e5 Qf6 Nc3 Qd8 Ne4 fxe4 Kf2 Ke7 Ke3 b5 Kd4 h5 Kc5 f5 d4 f4 a4 f3 d6+ Ke6 d5+ Kf5 a6 h3 a5 h4 e6 b4 e7 h2 e8Q b3 Rb1 b2 Qb5 h3 Qdd3 Ne7 d7 Nbc6 d6 Na7 Qa3 Nd5 Be3 Nf4 Re1 b1B Ne2 Rg8 Rd1 Rg4 Qb6 Nb5 Kc6 Ba2 Rg1 h1Q Bc1 h2 Be3 Qg5 d8R Bce6 d7 Beb3 Qb4 Nd6 Re8 Rd8 Re7 Bg7 Qb7 Bd4 Rc1 Bb6 Bf2 Qf6 Rc3 Qd4 Be1 Qd2 Rf7+ Ke5 g3 Qg2 Qc4 Qh3 Rh1 Qh5 Qa4 Qf5 Qa3 Qc2 Qb2 Qd2 Nd4 Qc2 Ne6 Qd2 Nf8 Kd4 Rc5+ Ke3 Bb5 Qc2 Rc4 Ke2 Ba4 Qd2 Ng6 Qc2 Rf1 h1Q Re7 Qg1 Qa8 Qe3 Rc3 Qed2 Rh1 Rh8 d8R Qb1 Bf2 Rh7 Rg1 Rh1 Rg2 Rd1 Rb8 Qf7 Kd7 c5 Qd5 c4 Rh2 Qf8 Rc1 c3 Rh5 c2 Be1 Qa1 Rb1 c1Q Qa8 Qc3 Rc1 Qb1 Qb7 Qcd3 Rcc8 Q3c2 Qc6 Qf5+
1QrN1rrb/nr5P/3QB1K1/2qPP3/Q3n3/2B2R1q/1pp1RQb1/5n1k w - - 0 1 legal: proof: f4 e5 g4 a5 c4 f5 b4 axb4 Nc3 d5 cxd5 h6 Ne4 exf4 Ng5 hxg5 gxf5 g4 Kf2 Kf7 a4 Kf6 e4 Ke5 h4 g5 f6 b5 a5 c5 d6 f3 Ke3 g3 d7 c4 h5 f2 d3 c3 h6 g4 f7 c2 h7 g2 a6 g3 a7 b3 Qe1 b4 Qd1 b2 Nh3 g1R Bd2 b1R Ra2 b3 Rh2 g2 Nf4 Bb7 Ra3 Bg7 f8Q Qh4 d8Q Nf6 Ne6 Nc6 Qd7 Rc8 a8Q Qg4 Nd8 Na7 Qa4 Qh3+ Qf3 Rg8 Be2 Rgf1 Qb8+ Rc7 Ba5 g1Q Qfb4 b2 Qd2 Ra1 Rc3 Ra3 Qd1 Rb3 d4+ Kd6 Kf4 Bd5 Bc4 Rb7 Qa8 Rc8 Qfe2 Bc6 Rf3 Bd5 Bc3 Bc6 Ke3 Qg5+ Kd3 Qc5 Be6 Bd5 Ke3 Bc6 Kf4 Bd5 Bg4 Bc6 e5+ Kd5 Kf5 Ne4 Qdd3 Re1 Qab5 f1N Qb8 Rd1 Qe1 Rd2 Kg6 Rf2 Re3 Rf4 Rf3 Rff8 Qdd2 Nf2 Qed1 Ke4 Qa4 Bd5 Be6 Bc6 Re3+ Kf4 Re2+ Kf3 Q1e1 Ne4 Rhf2+ Kg3 Qed1 Ng5 Q1e1 Bg2 Rf3+ Kh2 Qf2 Ne4 d5 Kh1 Qf4 Rb4 Qf6 Rb5 Qe7 Rb7 Qed6 Bh8+
2b2q1r/4b1PB/4PQ1Q/4bK2/p1kNN1bQ/p1BRq2r/5n1P/Q3n2r w - - 0 1 legal: proof: c4 e5 a4 g5 b4 b5 f4 gxf4 Ra2 bxa4 Qc2 d5 cxd5 h5 Qh7 h4 Ra3 e4 Rf3 exf3 Qxh4 Nf6 Qh7 Ng8 Kf2 Kd7 g4 Kd6 e4 c5 d4 f5 g5 a5 b5 a3 b6 c4 g6 c3 b7 a4 g7 c2 Ba6 Be7 Be2 Qe8 Qh6+ Nf6 Nd2 Nd7 Bb2 c1B Bc3 Bb2 Bd3 Ne5 Ne2 Ra6 Bb1 Ba1 Rd1 Nd3+ Kg1 f2+ Kg2 f1R Kh3 Rc6 b8Q+ Rc7 Qb3 f3 Qa2 f2 Qb2 Ne1 e5+ Kd7 d6 Ke6 d7 Kd5 Kg3 Ng4 Kf4 Rh1 Ne4 f1B d8Q+ Kc4 d5 Bh3 d6 Nf2 d7 Bg4 Rd3 Rb7 Nd4 Rb3 Qa2 Qf8 e6 Bb2 Ke5 f4 Qa1 f3 Qg5 Nd1 Qg6 f2 Qh6 f1Q Bc2 Q1f3 Bb1 Bb4 Qdh4 Qe3 d8Q Nf2 Qdf6 Be7 Bc2 Bh5 Kf5 Bg4+ Kg6 Rb5 Bb1 Rf5 Bc2 Rf3 Bb1 Rh3 Bc2 Be2 Kf5 Bg4+ Ke5 Bc5 Bb4 Be7 Rb3 Qf3 Ng5 Bc3 Bh7 Bf5 Ne4 Bb2 Rd3 Bc1 Nb5 Bg4 Ba5 Be3 Bc3 B3c5 Nd4 Qe3 Qf7 Bed6+ Kf6 Bf4 Kg6 Be7 Qff6 Be2 Kf5 Be5 Q6h5 Bd1 Qh6 Bg4+
B6q/5rPp/5B1b/2Kp1n1P/1B1b1Nrr/2QR3R/Qq2nB1P/qr3k2 w - - 0 1 legal: proof: c4 d5 a4 b5 g4 bxa4 d4 g5 f4 e6 fxg5 Bd7 Nc3 dxc4 d5 Bc6 d6 Bf3 Nd5 exd5 Qd3 Be4 Qc2 Bg6 Qd1 Bh5 gxh5 Bh6 Qb3 Bg7 Qd1 Bf8 Kd2 Kd7 Kc3 Ke6 Kd4 Kf5 b4 Kg4 b5 f5 d7 a5 b6 c5+ Ke5 f4 e4+ f3 b7 a3 g6 a2 Bg2 c3 Rb1 a1B Rb6 c2+ Bb2 c1R Re6 a4 Qe2 c4 Kd4 a3 e5 c3 Nh3 c2 Nf4 a2 Bf1 Rb1 Bc3 Bh6 Kc5 Ne7 Bb4 Nbc6 b8B Rg8 Ba7 c1Q+ Qc2 f2 Bb5 Kf3 Rd1 f1R Qc3+ Kf2 Rd3 Qe8 d8B Nf5 Bf6 Ncd4 Bc6 Ne2 Re7 Rb8 e6 Qb2 Ba8 Rg7 Rf7 Qh8 e7 Rg1 e8Q Rg4 Rc7 Rf7 g7 Kf1 Qa4 Re8 Qac2 Re4 Re7 Rd4 Ree3 Rh4 Rh3 Re4 Ng6 Reg4 Nf4 Qb3 Q3d2 Be5 Qdc3 a1Q Qa2 Qc2 Kc6 Qc1 Bf2 Qcb2 Kc5 Bd4+
6nQ/2bkN1p1/2R2r1Q/3nq3/4r2b/2nRPQP1/1qKP1p1B/2n1rB1Q w - - 0 1 legal: proof: c4 a5 f4 d5 f5 dxc4 f6 a4 b3 b5 a3 b4 axb4 a3 b5 exf6 Bb2 f5 Bc1 f4 b6 h5 Nc3 h4 Ne4 Bd7 Ng3 Ba4 bxa4 Qd6 Nf5 Qd8 g3 h3 Nh4 Rh7 Ng2 hxg2 Ra2 Rh4 Ra1 Rh8 h4 f5 h5 c5 b7 c3 h6 a2 a5 c2 a6 c4 a7 c3 h7 f3 Bb2 c1Q Rb1 a1B Rh3 f4 Ba3 c2 Bd6 Qf6 Rb6 Nd7 Rb4 Be5 Rb3 Qb2 Rd3 c1N Rh6 Nb6 b8Q+ Kd7 Bc5+ Nd5 Qb6 Bc7 Nh3 Be7 Bg1 Rf8 a8Q Qfe5 e3 Bh4 Bh2 g1N Rc6 Rf6 Qe2 f2+ Kd1 f3 Nf4 Qa2 Ng6 Qab2 Qe1 Nge2 Qba6 Nf4 Ne7 Nfe2 Bg2 f1R Q8b7 Qb5 Kc2 f2 Qd1 Nc3 Qf3 Re1 Bf1 Nh6 Qba8 Re8 h8Q Ng8 Q8b7 Ref8 Qba8 Rf4 Qh1 R8f5 Qf8 Re4 Qf6 Qb4 Qb7 Qbd4 Qfh6 Rf6 Qa8 Qb6 Qf8 Qb4 Qf7 Qbd4 Qfh5 Qb4 Q5f3 Qb2+
8/bn1KPP2/1BBb2P1/1qp2Rq1/4qrB1/1Qr2pQ1/1q2R1B1/1k2Nnb1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 fxg4 bxa5 d5 c4 dxc4 f5 e6 Nc3 e5 h3 g5 Nb1 g3 Qa4+ Bd7 Rh2 g4 Rh1 g2 Qd1 Bc6 Nc3 Bf3 Nd5 g3 Nf4 Bg4 hxg4 exf4 e4 Ke7 Ke2 Kf6 Kf3 Ke5 a4 Kd4 f6 h5 f7 b5 a6 h4 a5 b4 g5 b3 Kg4 h3 Kf5 b2 Ke6 b1Q a7 h2 e5 c3 a6 c2 g6 Nf6 Be2 Qb5 Ra2 Nc6 Bg4 Kd3 Nf3 Nh5 Rf1 Qg5 Kd7 g1B e6 Rc8 a8B h1Q a7 Na5+ Bc6 g2 a8B Bd6 e7 Ba7 Rb2 g1B Ne1+ Kd4 d3 Kc3 d4 Qe4 d5 Ng3 Be3 c1Q Re2 Nb7 Bb6 Qcb2 Qb1 Kb3 Qd1+ Ka2 Qb3+ Kb1 Rf3 Be5 d6 Rh4 Ke6 Rh1 d7 Bh2 d8Q Rf1 Be8 Bg1 Ree3 Qec4+ Qd5 Na5 Qc3 Bd6 Re2 Rf2 Qe5 Nf1 Qc3 Qd3 Qdb3 Qdc4+ Bd5 Nb7 Bd7 Rh8 Qe3 c5 Bc6 Rh3 Kd7 Qd4 Rg3 Qdc4 Bg2 Qcd5 Qec3 Qe4 Rd3 Rhf3 Rd5 Rg3 Rf5 Rff3 Qe5 Rc3 Bh5 f3 Qf4 Rg4 Qg3 Rf4 Bg4 Qe5 Qa3 Qd5 Qb3 Qe4
Br3r2/Bn2p1b1/P1r1Nnq1/1Qr1q3/3bRpN1/2P2P1Q/1N3KN1/n1k5 w - - 0 1 illegal: No possible last move
2b1bq2/pB1Pnk2/2n1pP1q/Q2qQ1Br/2B2N2/4K3/1Rbr3P/N4B1b w - - 0 1 illegal: No proof kernel
2Qq2r1/2QpkrB1/r1b3R1/P2nP1KQ/6B1/4RbpP/b2n2N1/3bQr2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 fxe5 a6 g3 axb5 Ba3 b4 Bb2 Ra7 Bc1 Ra8 Na3 h5 Qd2 f4 Nc4 f3 Qd1 Be7 Ne3 Bg5 Ng4 Bf4 gxf4 hxg4 Kd2 g5 e4 b5 c4 b3 a4 d3 Ke3 b2 c5 b1R c6 f2 c7 d2 h3 g3 e6 g4 e5 b4 e7 b3 f5 g2 Kf4 b2 f6 g3 Qe1 d1B Be2 f1B Nf3 g1R Kg5 Bg2 Nh4 Bcb7 c8Q Bgc6 Ng2 Na6 Bg4 Nb4 Qc7 Nd5 a5 Ra6 Ra3 Kf7 Re3 Rf1 Rg1 Rf4 Rf1 Ra1 Rf2 b1B Rb2 Ba2 Rb6 Nh6 Ba3 Nf5 Bc1 Ke6 f7 Rb1 f8Q Rg8+ Kh5 Rf1 Bd2 Rb2 Bc1 Rbf2 e8Q+ Qe7 Qec8 Qd8 Qh6+ Ke7 Qg6 Nd6 Kg5 Rf7 Bd2 Rgf8 Qh5 Nc4 Bc1 Nd2 Ba3+ Nb4 Bc1 Bcf3 Rg6 Rg8 Ba3 Ba8 Bc1 Nd5 Ba3+ Ke8+ Be7 Bc6 Bf6 Ne7 Bg7 Nd5+ Rf6 Ke7 Rd6 Nb1 Rg6 Nd2
2Q1Qqk1/2PRn3/2NP1QP1/2b1R3/1Nn4Q/1pbn1Knp/rB5b/rb6 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 a5 b4 axb4 c4 gxh4 Nc3 d5 Nb5 Kd7 Nxc7 Nh6 c5 Ng8 Bc4 dxc4 Ke2 b5 g4 e5 f4 Ke7 d4 Kf7 a4 h5 a5 b3 d5 h3 c6 c3 g5 e4 f6 e3 a6 b4 a7 b2 f5 b1N Qe1 h4 Qg3 h2 Ra2 c2 Na6 b3 c7 h3 Nb4 Na6 Nf3 Ne7 g6+ Kg8 Rd1 h1N Qh4 Nd2 Ra5 Nc5 Bb2 c1B Ne5 Nc4 Kf3 e2 Nec6 e1B Rb5 Bc3 f7+ Kg7 Rd3 Ng3 Rd4 Rh5 f6+ Kh8 Rd1 Bf5 Ra5 Bb1 Rd4 Rb8 a8Q Bf4 Rd2 Rb6 Qc8 Nd3 Rd1 Ra6 Rc5 Ng8 Rd2 Be7 f8Q Ra1 f7 Bfe5 Ra5 Bc5 Qe8 Qd6 Rd1 Qf8 Rd2 Ne7 Rb5 Qg8 f8Q Bf4 Qff5 Qf8 Qff6+ Kg8 d6 Re5 Rf2 Re2 Rf1 Bg1 Re5 Bh2 Re1 Be3 Rf1 Bc5 Re1 Nef5 Re7 Rc2 Rd7 Ne7 Re5 Rd2 Bc1 Rda2 Ba3 Na5 Bb2 Nc4
4r3/2B1qQ2/2n2pKP/p1Q1rB1r/P1Q1R1bk/NnP2Rnr/5q2/Q3r3 w - - 0 1 legal: proof: Nf3 c5 Nc3 d5 Ng1 c4 Nb1 c3 bxc3 d4 f4 e5 g3 exf4 Bg2 d3 Bf1 dxc2 h4 Qg5 h5 Qe7 Na3 Qd8 Nc4 Be7 Ne5 Bh4 Ng6 hxg6 gxh4 g5 Kf2 Ke7 Kf3 Kf6 Ke4 a5 d4 b5 a4 g4 d5 g5 h6 g3 h7 g2 d6 b4 h5 b3 d7 g4 Nf3 g1Q Nd2 Kg5 Rh3 b2 Nb1 g3 Na3 g2 Rf3 Kh4 Kf5 b1R e4 f6 e5 Qe7 e6 Nc6 d8Q Rb5+ Q8d5 Nh6+ Kg6 Qf2 Bd3 Nf5 Qc5 Ng3 Bf5 g1R h6 Re8 h8Q Re1 Be3 c1N Qg8 Nb3 Ra2 Rh1 Qa1 Rh3 Re2 Ra6 Qf7 Rab6 Qc4 Re5 Bc1 Rbb5 Re4 Rbc5 Be3 Rcd5 Bb6 Rb5 Bg4 Rh5 Bc7 Rbe5 Qc5 Ba6 Bf5 Be2 Rfe3 Bg4 Rd3 Qd6 e7 f3 Qg8 Qb2 Qf7 f2 Qfc4 f1R Rde3 Re1 Rf3 Rh8 e8Q Qf2 Qf8 Qe7 Qff7 Re8
Kn4Q1/5P2/q1p3P1/1Rn1p1bN/b1n1rbq1/n1P1R1B1/QB2nB2/5kB1 w - - 0 1 legal: proof: e4 b5 f4 g5 a4 f5 axb5 fxe4 f5 d5 Nc3 d4 Be2 d3 Kf2 dxe2 h4 a5 g4 Bh6 h5 Ra6 Nd5 Bg7 Nf4 gxf4 g5 Rg6 hxg6 Bf8 d4 Kd7 b4 Kd6 c3 Kd5 b6 Kc4 g7 e1B+ Ke2 e5 g6 h5 b7 a4 d5 e3 Kf3 h4 Ke4 a3 f6 f3 b5 a2 d6 e2 b6 f2 d7 f1N f7 h3 Rh2 Qh4+ Bf4 Bd2 d8B e1N Qb1 Ne3 Bg5 Be7 Ne2 N1c2 Ng3 Qg4 Nh5 Na3 Re2 h2 Qb2 h1N Rb1 a1Q Qa2+ Kc5 Rb3 Nec4 Re3 Bd7 Bh4 Rh6 Bf2 Ba4 Bg1 Bg5 Rb4 Na6 b8B Ne7 g8Q Nc6 b7 Bc1 Rb6 Rh7 Ba7 Ncb8 Rc6+ Kb5 Kd5 Nc5 Bf2 Ng3 Rb6+ Ka5 Rb2 Ne2 Rb5+ Ka6 B4g3 Rh6 Nf6 Rh4 Nh5 Bd2 Re4 Bdf4 Re3 Na5 Bg1 c6+ Kd6 N5c4+ Kc7 Rh1 B1f2 Rd1 Bb6 Rd4 Bg1 Re4 B1f2 Nbd7 b8B Qf1 B8a7 Nb8 Ba5 Qa1 Bb4 Qf1 Rb7 Qa1 Bb6 Kb5 Bg1 Nc2 Ba3 Qf1 Bb2 N2a3 B1f2 Nd2 Ng7 Nc1 Bg1 N5b3 Bc5+ Kc4 Re1 Kd3 Bcf2 Nc5 Kb6 Qfe2 Ka7 Qf1 Rd1 Ke2 Nh5 Kf3 Rb3 Kg2 Re1 Qb5 Re3 Ndc4 Rb4 Kf1 Ka8 Ne2 Rb3 Qb6 Rb5 Qa6+
5k2/q7/nP1p1r2/KQqR4/n1pQP1Rn/1n2BNN1/N2Pbr2/r4qN1 w - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 h4 exf4 b6 gxh4 Ra5 a6 Ra3 Qf6 Ra1 Qd8 c4 Qf6 b7 Qd8 e3 Bc5 b4 Bb6 c5 a5 cxb6 a4 Bc4 Na6 Be6 Nb8 Bb3 axb3 g4 c5 e4 h5 b5 f5 g5 h3 g6 d6 g7 h4 Nc3 b2 Ra7 b1N Qf3 c4 Qf1 f3 Nce2 h2 Kd1 f4 Kc2 f2 Nh3 f3 Ba3 Qg5 Ra5 Bg4 Qd1 f1R Neg1 f2 Nf3 Nc3 Rg1 h1Q Qa1 Na4 Bc5 Ne7 g8N Rh6 Be3 Nf5 Nf6+ Kf8 Nh5 Rf6 Ng3 Na6 b8N Qh2 Rg2 Qg1 Qd4 Ra1 b7 f1Q Nc6 Qgf2 Ne1 Be2 Ng1 h3 Nef3 h2 Nb4 h1N Na2 Nh4 b6 Qg7 Rd5 Rc8 b8Q Qa7 Qb7 Rc7 Qc6 Rcf7 Nh5 Ng3 Qb5 Nh1 Rg4 Ng3 Nh2 Qf5 Nhf3 Qc8 Ng5 Qc5 N5f3 Nh1 Ng3 Nf2 Qbb2 Nd3 Qb4 Nc3 Qb5 Nc1 Kb2 Qc8 Ka3 Na4 Nh2 Rf2 Nhf3 Rf4 Qdb2 Rf6 Qd4 N6c5 Kb4 Na6+ Ka5 Qcc7 Qb3 Qc5+ Qb5 Nb3+
N4Bn1/rQ1q3p/4PPk1/1rp3qb/nP2R2r/3q1n2/R2NqKQ1/N2N4 w - - 0 1 illegal: No possible last move
1r2B1Qn/3N1P1R/r2bk3/pN1r3Q/2bPPR2/1p5b/Rq2qr2/K4Rq1 w - - 0 1 illegal: No proof kernel
1R4Rq/1Bqrqp1b/3PPq1n/k2r1N2/4RR2/2n1rK2/2n2pPN/2QQ4 w - - 0 1 legal: proof: c4 d5 h4 dxc4 b3 e5 Bb2 e4 Bf6 e3 a4 b5 axb5 Bd6 Na3 Bf4 Nb1 Bg5 hxg5 gxf6 Qc1 exf2+ Kd1 f5 Qc2 f4 Kc1 Kd7 Qd1 Ke8 d4 Kd7 Kd2 c5 e4 Kc7 Ke2 Kb6 g6 a5 g7 h5 b4 h4 e5 h3 d5 c3 d6 h2 Ra2 c4 Qd2 f3+ Ke3 c2 Qe1 c1Q+ Qd2 c3 Rc2 a4 Bd3 f1R Na3 f2 Nf3 Bf5 e6 Qe7 Rb2 c2 Be4 Rh5 Bb7 Nh6 g8R Bh7 Ra2 Rd1 Re1 h1Q Nh2 Re5+ Kf3 Ra7 Re4 Na6 Rf4 Rde1 Qd1 Rd5 Rb2 Qa1 Ra2 c1N Re2 Qh8 Nc2 a3 Ne3 a2 Nf5 a1Q Ree4 Na2 Qc1 Qaf6 Qd1 Ra8 Qc1 Rd8 Qd1 Nc3 Qc1 Ka7 b6+ Kb8 b5 Nb4 Bc6 Qf1 b7 Ka7 b8R Rd7 b6+ Ka6 b7 Ka5 Rbe8 Qb5 Qd1 Na6 b8Q Qc4 Qbb1 Nb4 Rb8 Nc2 Bb7 Qc7 Qbc1 Re3+
4b1b1/1Q1b1n1Q/3bPrbB/3q1rN1/P2p1RKR/2k2r2/b1PRp3/4R2B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 h5 d5 exd5 g6 d6 gxh5 Rh3 h4 Rh2 Bg7 Rh1 Bf8 f4 e5 d4 e4 d5 Ra6 Na3 Nc6 Nb5 Ne5 fxe5 Ra8 Nd4 cxd4 Kf2 Kd7 a4 h5 g4 f5 g5 b5 g6 e3+ Kf3 h3 g7 h4 Rb1 b3 Ne2 h2 Ng3 b2 Qd2 b4 Ra1 b1B Qg2 h3 Be2 b3 Rf1 h1B Rd1 h2 Ba6 e2 Rf1 f4 Kg4 f3 Re1 f2 Nf5 f1R Bb2 Rh3 Rd1 Ba2 Bb7 Ra5 Ng3 Rf6 Ne4 Rhf3 Bc1 b2 Ng5 b1B Rd2 Bc4 Ba8 Bba2 Bb7 Bd3 Rb1 Bg6 Ba8 Ne7 g8Q Nc6 Qh7+ Be7 Ra1 Qg8 Rb1 Nd8 Ra1 Nf7 Rb1 Kd8+ d7 Kc7 Ra1 Kb6 d6 Kc5 e6 Kb4 d8R Raf5 d7 Kc3 Re8 Bd6 d8R Bd7 Rf8 Qg7 Rh8 Qf8 Rb8 Qd8 Rb5 Qa5 Re5 Be8 Re4 Qd5 Rf4 Bd7 Qg7 Be8 Rh4 Bh7 Rb1 Bg8 Qh3 Bg2 Qh7 h1B Qg3 Rd3 Qe3 Be4 Qf3 Re3 Qg2 Bd3 Qe4 Rf3 Ra1 Qe5 Qb7 Qd5 Qb6 Qc6 Re4 Rd5 Nh3 Rf1 Rd1 Bc5 Bh6 Bd6 Rf4 Bg6 Ng5 Rdf5 Rd2 Qc5 Rb1 Bhc6 Re1 Bcd7 Bh1 Rf3 Qb7 Qd5
nK2n1n1/2NN1n2/1n1b1P1k/2Q2b1p/qPrN3n/2Q1p1B1/1P2R3/2qN3B w - - 0 1 legal: proof: g4 a5 e4 b5 f4 g5 d4 f6 h4 c6 f5 b4 a3 Ra6 d5 cxd5 axb4 Ra7 Ra3 Ra8 Rf3 d4 Rf4 gxf4 g5 Ra6 e5 fxe5 h5 Rg6 hxg6 e4 Kd2 e5 c4 d5 c5 h5 f6 a4 g7 Kf7 c6 Kg6 c7 a3 Nh3 f3 Rg1 a2 Be2 a1Q Bc4 f2 Bd3 f1N+ Ke2 Ne3 Rg4 Ng2 Bf4 Qd7 Bc2 d3+ Kd2 d4 Qh1 Qda4 Nf2 Nd7 Bg3 Nb6 Qc1 Bf5 c8N Na8 Nb6 Nh4 Nd1 Bd6 Nbc3 Rh7 Nb5 e3+ Ke1 e4 Nc7 e2 Kf2 e1N Nd7 d2 Bb3 d3 Ke3 Q1a3 Kd4 e3 Kd5 Qa1 Qc3 Qc1 Rf4 Rh8 Rf2 Nef3 Re2 Ne5 Qc5 Kh7 g6+ Kh6 Bc4 Rh7 Bb5 Nf7 Kc6 Rh8 Kb7 Rh7 Kb8 Rh8 Nc3 d1N Bc6 d2 Bh1 Nf2 Nd1 Ne4 Qc3 Bf8 Qc5 Ned6 Qc3 Ne8 Qc5 Ne7 g8Q Rh7 Qh8 Ng8 g7 Bd6 Qc3 Ne7 Qf8 Ng8 Nf2 d1N Qe7 Rh8 Qee5 Bh7 Qcc5 Nc3 Nd1 Nd5 Qed4 Nge7 Qdc3 Ndb6 g8N+ Kg6 Nh6 Ng8 Be5 Kg5 Bg3+ Bf5 Ng4 Kg6 Nge5+ Kh6 Nc6 Rh7 Nd4 Rg7 Rg2 Rg4 Re2 Rf4 Nc2 Rc4 Nd4 Bb1 Bf3 Be4 Bh1 Bf5
2b5/nB3K1k/1qP1bRrB/4QBbQ/2P1P2p/1N6/3B1p1b/1rqr1r1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 b6 exf4 d4 Nc6 c4 Rb8 b5 Ra8 Na3 Nb4 Nc2 Na6 Nb4 cxb4 Be3 Rb8 Bc1 Nc5 dxc5 Ra8 Kd2 d5 Kd3 a5 Kd4 h5 Ke5 f5 e4 Kf7 g4 Kg6 c6 h3 g5 h2 b7 h4 b8Q d4 b6 d3 b7 d2 Bd3 a4 Rb1 f3 Ne2 f4 Rb2 b3 Rf1 h1Q Rb1 b2 Qa7 a3 b8B f2 Qc7 f3 Qe1 d1R Qc3 a2 Nd4 a1B Q3a5 Ne7 Nb3 Rh6 Bd2 Kh7 Be2 Rg6 Ba7 Bd7 Bae3 Nc8 Kd5 Bg7 Qe5 Bf6 Rc1 b1R Qb5 Be8+ Ke6 Bd7+ Kf7 Qb6 Qbd5 Na7 Qb5 Qh2 Rh1 f1B Rc3 f2 Bg4 Rc8 Bf5 Ra8 Bf4 Bh3 Rf3 Qg1 Qbd5 Bc8 Qb5 Ba6 Bc8 Bd4 Bb7 Bd7 Bfe3 Be7 Rf6 Bd6 Bf4 Be3 Qbc5 Rd8 Qa5 Rf1 Qac5 Rgg8 g6+ Kh8 Qc3 Bg4 g7+ Kh7 Bc1 Re1 Bh6 Bh2 Qh5 Bg5 Ba8 Bac8 Qe5 Rd6 Bb7 Bgd7 Bf4 Rec1 Be3 Qd1 Bf4 Qc2 Be3 Rf1 Bf4 Rdd1 Bd2 Qc1 Ke7 Rf8 g8B+ Kh8 Be6 Rg8 Bf5 Rg6 Kf8 Kh7 Kf7 Be6+
N2QK1nQ/1PbB3Q/4NP2/r3n1n1/5PQR/b2pkb1q/b4Rp1/1qn5 w - - 0 1 legal: proof: d4 a5 g4 b5 a4 c5 axb5 cxd4 Bg5 h6 f4 h5 Bf6 hxg4 Be5 Ra6 e3 Rf6 e4 Rf5 exf5 f6 Ra2 fxe5 Ra4 Bb7 Ra1 Bc8 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kd3 g5 b4 e4+ Kd2 e5 c4 a4 h4 a3 b6 d3 Kc3 g3 b5 g4 c5 g2 Kb4 a2 h5 d2 b7 e3 h6 g3 b6 d4 Kb5 e2 c6 e1Q c7 e4 h7 e3 Be2 d3 Na3 Qd7+ Kc4 Nc6 Nh3 g1B Kb5 g2 Bg4 e2 Nc4 Ba3 b8Q Bgc5 b7 Bb6 Qb1 d1B Ng5 Qg1 Qb3 e1N Rh4 Nf3 Ne6 Ng5 Rb1 a1N Rb2 Qf1 Rf2 Bf3 Qb1 Ba5 Nb6 Nb3 Na8 Nc1 Qb3 Qh1 Qd1 Qh3 Qh1 Qd4 Qh2 Qa1 Qh1 Bd7 c8Q Bc7 Qh2 Be8 Qd7 Ne5 Qd8+ Ne7 Qg3 Bf7 Qh2 Rg8 h8Q+ Rg7 Nd4 Ba2 Ne6 Kf7 f6 Kg6 Qh1 Ng8 Qd1 Rh7 Qe2 Rh5 Qd1 Qg3 Bh3 Qg4 Qe2 Kf5 Qdh7+ Ng6 Qd1 Ke4 Kc6 Ke3+ Kd7 Qb1 Ke8 Qg3 Bf5 Qh3 Bg4 Ne5 Bf5 Be4 Qg4 Bf3 Nf8 Ngf7 Bd7 Rf5 Ne6 Ng5 Rh6 Nc4 Rh5 Ra5 Rh4 Ne5
NR2q1r1/1b3p1Q/3q1Pq1/Q5bP/NpR5/2rN1N2/2q1b1P1/Bkq1r1K1 w - - 0 1 illegal: No proof kernel
k7/N2P4/R2rK2Q/rp5n/1BN1b3/n1p2bP1/qnPp1b1B/2N1NQ1r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c6 d4 c5 a4 Nc6 d5 Rb8 Bb5 Ra8 Rh4 Nb8 Rd4 cxd4 Bc6 dxc6 Ra3 Ra5 Rh3 Ra7 Rh1 Ra8 Ke2 Kd7 Kd3 Kc7 Kc4 b5+ Kc5 Kb7 f4 e5+ d6 h5 a5 e4 g6 h4 f6 e3 f7 e2 f5 e1R f6 d3 g7 h3 Bf4 d2 Nf3 b3 Bh2 b2 g3 Rh6 Nc3 b1N Ne2 Bg4 Nc1 Na3 a6+ Ka7 Qe2 Qa5 Qf1 Nd7+ Kd4 c5+ Kd5 Be7 f8B c4 f7 Nc5 d7 c3 Rg1 Rd1 Ne1 Na4 Rh1 Bd8 Bb4 Bb6 f8Q Nb2 Q8f6 Be2 Ke6 Bf2 Rg1 Kb8 a7+ Kb7 Qg6 Nf6 g8N Bf3 Ne7 Nh5 Nc6 Qa4 Ncd3 Ra1 Nc1 Rah8 a8N Qb3+ Ke7 Qa2 Nb6 R8h7+ Qg7 Rd6 Nc4 Rh8 Qg6 Ra8 Qh6 Ra5 Na7 Ka8 Rg2 Bc5 Re2 Bf2 Re6 Be4 Bg1 h2 Rf6 h1B Bh2 Bhf3 Kf7 Rd3 Ke6 Rd6+ Ke5 Bd1 Qh1 Bb6 Nf3 Qb3 Ne2 Bf2 Rg6 Rd3 Ra6 Qa2 Ke6 Kb7 Nc1 Rd4 Nb3 Ka8 Qg2 Be2 Qg1 Rf1 Ne1 B2f3 Nc1 Rd3 Qg2 Rh1 Qf1 Rd6+
1r3Q2/bP4pp/1PKRb1rB/B1B4n/kB2PbN1/2r1nq2/5n1p/1Q2N3 w - - 0 1 illegal: No proof kernel
1bN4R/2q1P2n/r2rB2b/2p3pK/1BQ5/p1q1BP1P/NkqB2r1/n2Q4 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 e3 f3 Bd3 f2+ Ke2 dxc4 b4 f1R Ra2 f5 Rb2 h5 Be4 f4 Bd3 Bb7 Ra2 Bc6 Ra6 Bd5 Rg6 Be4 Rg4 hxg4 Qe1 f3+ Kd1 f2 Ke2 Qg5 Qd1 Bf3+ gxf3 Qd8 b6 Kf7 e4 Ke6 b5 Ke5 b7 Kd4 b6 c5 e5 a5 e6 g5 e7 c3 Nh3 c2 Bc4 a4 Nc3 g3 Be6 g2 Nf4 g1Q Nfd5 a3 Na2 Nc6 b8Q Qg3 b7 Na5 Nb6 Nf6 Nc8 Nb3 d3 Qg4 Bd2 c1B Qa7 Qf5 b8B Qc7 Qa6 Rh6 Qc4+ Ke5 Bb4 Bf4 Bd2 Nh7 d4+ Kf6 d5 Ke5 d6 Rg1 d7 Qc2 d8B Rg2 Kf1 Ra6 Ke2 Na1 Kf1 Qd6 B8a5 Qc7 Bab4 Rf6 Ke2 Bh6 Kf1 Rf8 Ke2 Rd8 Kf1 Rdd6 Ke2 Rg4 Kf1 Bg3 Kg2 Bf4+ Kh3 Rg2 Be3 f1Q Bed2 Bg3 Kg4 Qfd3 Kh5 Qdc3 h3 Bh2 Re1+ Kf6 Re4 Bg3 Rf4+ Ke5 Rf8 Bf4 Qb3 Kd4 Rh8 Rd5 Qa4 Kc4 Qb5+ Kb3 Qc4+ Kb2 Be3 Rdd6 Bd2 Qa7 Bc7 Bg3 Bca5 Qc7 Be3 Qg7 Bbd2 Qgc3 Bb4 Qb6 Qb5 Rc6 Re8 Bb8 Qc4 Qc7 Rh8 Rd6
N5K1/PBn4b/Q1pP1N2/b4Qrq/1N1p4/B1rPkp2/R2q1Nnn/3b4 w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 e5 f4 exf4 Ra3 h5 gxh5 bxa3 Nh3 d4 Ng1 Qd5 cxd5 Kd7 Nf3 Ke7 Ng1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 b5 h4 g5 h6 b4 h7 c6 a5 g4 h5 g3 a6 b3 h6 b2 a7 a2 Qa4 a1Q Na3 b1B+ Nc2 f3 Nh3 f2 Rh2 g2 Qa6 Qa5 Ba3+ Qb4 Kf4 g1Q e4 Bg4 Kg5 Ke5 d6 f5 Kg6 f4 Kf7 Ne7 Bc4 f1N Nf2 Qb2 Nb4 Nf5 Be2 Rg8 h8N Rg5 h7 Nh4 Rg2 Nh2 Bf1 Rh5 Kg8 Qh1 Bb5 Bd1 Ng6+ Kf6 e5+ Kf5 h8Q f3 Qh6 Rg5 Qh5 Be7 e6 Bd8 e7 Ba5 e8N Bbc2 Ng4 Ke4 Nc7 Rc5 N6e5 Rc3 Rf2 Ng2 Nf6+ Kf4 Qh7 Bg6 d3 Qd2 Qh3 Ke3 Qf5 Nf1 Bc4 Qh5 Be6 Nh2 Bc8 Qe1 Ra2 Qd2 Qb5 Na6 Neg4+ Ke2 Nf2 Ke3 Qb7 Rb8 Na8 Nc7 Qa6 Rb5 Bb7 Re5 Qh3 Rg5 Qf5 Bh7+
qB2Q3/2K2b2/2PBbB1k/rbpR3b/p1P2R1Q/1PnnN3/p3B1r1/1r6 w - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 e5 d5 exf4 Qd4 Qb6 Qd1 Qc6 dxc6 Ke7 Bg2 Kd8 Bf1 Ke8 Na3 f5 Bg2 h5 Kd2 f3 Nc4 f4 Bf1 f2 Ne5 f3 Ng4 hxg4 Nh3 Bd6 Ng1 Bf4+ gxf4 Rh3 Ra3 Rh6 Ra1 Rh8 Ke3 Kf7 Ke4 Kg6 Kd5 a5 Kd6 g3 h4 a3 e4 a4 e5 a2 e6 g2 c3 Ra5 e7 Kh6 e8Q g5 h5 g4 b3 g3 Qd3 Nf6 Qc2 Ne4+ Kc7 d5 Rh2 d4 Be2 f1B Rh4 d3 f5+ d2 f6 f2 f7 Rg8 Nh3 g1Q Nf4 g2 Nd5 Be6 Ne3 d1B Rf4 Nd7 f8B+ Rg7 Qd3 Ne5+ Be7 Rg6 Qdd8 Nd3 Bd6 Qh2 Qde7 g1R Qh4 R6g2 Rb1 Qg3 Rb2 Qg8 Rd2 Ne5 Rd5 Nd3 Qf7 Qa8 Qe8 Rg8 Bb2 Bfh3 Bc1 f1B Bd2 R8g4 Be1 R4g2 Bg3 Bf7 Bh2 Kh7 h6 Bhe6 Bg3 Kg6 h7 Kg7 h8B+ Kg6 Bh5+ Kh6 Bf6 Bf3 Bh2 B1e2 Bg3 Rb1 Bh2 Ne5 Bg3 Bb5 c4 Nc3 Bh2 Be4 Be2+ Bh5 Kb6 Nd3 Bb8 B4f5 Kc7 Bh7 Rf2 Bf7 Bd6 Bf5 Rf4 B5e6
4nr2/R1q2r2/Pk3NpP/b5nb/3pQ1pB/1K2rPQ1/BBn3R1/2B3n1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 Nd2 a5 Ne4 axb4 Ng5 f6 f3 Qc7 e3 Qf4 exf4 Kd8 Nf7+ Ke8 Ne5 f5 gxf5 Ra6 Ng4 hxg4 Bb5 Ra7 Bf1 Ra8 Kd2 Kd8 h4 Kc7 a4 d5 c4 b5 Kc2 d3+ Kb2 d2 h5 d4 c5 b3 h6 b4 a5 Na6 c6 Nc5 a6 Rh7 f6 Ne4 f7 Ng5 f5 Nf6 Bd3 Ne8 f6 Kb6 Qe1 d1R Bb1 Rd3 c7 Re3 Qg3 e5 Rh2 e4 Bd2 Bf5 c8Q Bg6 Qf5 Bh5 Rg2 g6 Ba2 Bd6 f8B Rf7 Ne2 Bc7 Bc1 Rd8 Kb1 b2 Kc2 b1N Be7 Nc3 Nf4 Ne2 Rb1 b3+ Kb2 Ng1 Nd5+ Kb5 Ka3 Ba5 Rbb2 Kc6 Rbc2+ Kb5 Rc7 Ra8 Ra7 b2+ Nc3+ Kb6 Kb3 b1Q+ Bb2 Rh7 f7 Qc1 f8B Rf7 Bea3 Ng7 Bfd6 Raf8 Be7 Ne8 Qff4 Rd3 Bf6 e3 Qe4 e2 Bfe7 e1N Bf6 Nh7 Bh4 Qf4 Bc1 Nc2 Bab2 Qd6 Ka4 Re3 Nd5+ Kc6 Nf6+ Kb6 Bd5 Qc7 Ba2 Re2 Kb3 Ng5 Nh7 Re1 Nf6 Re3+
QR1q2K1/2Q4p/1Npbpk1N/n3n3/1Nb3P1/q1Rr3N/4P1Pn/3nB2r w - - 0 1 legal: proof: f4 d5 a4 b5 axb5 g5 c4 dxc4 f5 Nf6 h3 Ng4 Na3 Nh2 Nb1 g4 hxg4 Bxf5 Qb3 Bc8 Qc2 Nxf1 Qd1 Nh2 Kf2 a5 Ke3 f5 Kf4 Kf7 Kg5 f4 b4 c3 d4 c6 d5 a4 d6 f3 b6 c2 d7 f2 b5 f1N b7 a3 b6 a2 Qd6 Qe8 d8N+ Kg7 Nd2 e6 Nh3 Ra7 Rb1 a1N Nf7 Ra3 Nc4 Rg8 Bd2 c1Q Nh6 Nb3 Qc7+ Nd7 b8Q Ra1 b7 Bd6 Qa8 Na5 b8N Ba6 Nb6 Ne3 Be1 Bc4 Na6 Qa3 Nb4 Nd1 Rb3 Qf8 Rc3 Qd8+ Kh5 Re8 Rf1 Re7 Rf8 Ne5 Rh8 Rd7 Re8 Qe7 Rb8 Kf6 Nf7 Qd8 Kh6 Ke7 Kg7 Bc5 Qc8 Rd3 Nh6 Bd6 Qcb7+ Qc7 Kg8 Kf6 Re8 Qd8 Qc7 Nb2 Bg3 Rh1 Be1 Qd7 Rd8 Nd1 Rb8 Qd8+
2k1N1R1/3p1r1q/3R1Rnp/P7/2B1Kn1P/q3P3/bnRB2pn/1b1rQQ2 w - - 0 1 legal: proof: b4 e5 c4 f5 e3 f4 b5 f3 b6 axb6 d4 b5 dxe5 bxc4 Be2 c3 Bb5 Qh4 Bf1 Qd8 Na3 Bc5 Nb5 Kf7 Nd4 Qh4 Nde2 fxe2 g3 Ra7 f4 Qd8 Kf2 Be7 f5 Bg5 Qb3+ Ke8 Qd1 Bf4 gxf4 Ra8 Kf3 e1N+ Ke4 g5 a4 b5 h4 c5 f6 h6 f5 c4 e6 c2 e7 c3 Qg4 b4 Ba3 c1Q Bb2 c2 Nh3 b3 Ba3 b2 Bd3 b1B Rg1 Nc6 Ba6 Ng2 Nf4 Nd4 Qf3 g4 Bc4 g3 Nh5 Ba6 Qe2 Nf4 Ra2 g2 Bb4 Qa3 Bd2 c1N+ Rc2 Nf3 Rd1 Ncd3 Qe1 Nb2 a5 Rh7 Ba2 Bc4 Ng7+ Kf7 e8R Nh2 Bb3 Ne7 Rg8 Ra6 Ne8 Neg6 Ba2 Be6 Bc4 Rd6 Rg7+ Kf8 f7 Ke7 f8R+ Bf7 Rgg8 Qc8 f6+ Kd8 Bf1 Bfa2 f7 Qcc3 Bc4 Qg7 Bc1 Rc6 Rd6 Kc8 Bd2 Rb6 Rh8 Rb8 Rfg8 Rb5 f8Q Rd5 Qf5 Qf7 Rf8 Qg8 Rff6 Rd3 Qb5 Rf7 Qf5 Qh7 Rg8 Ne2 Qff1 Nef4 Bc3 Rd1 Bb4 Rc1 Bd2 Rd1
8/2P2B2/knp1Qqb1/prQ1BrpR/5P2/1r1Br1bb/P3N2K/3r1BR1 w - - 0 1 legal: proof: c4 e5 g4 f5 c5 fxg4 c6 Qe7 b4 Qg5 b5 Qd8 b6 dxc6 bxc7 Ke7 Qa4 Kf7 Qd1 Ke8 h4 g5 d4 Qd5 h5 Qd8 d5 Nd7 Nc3 Nh6 Nb5 Ng8 Nd4 exd4 Rh3 Ne5 Rh1 Ng6 hxg6 Bg7 Rh4 Bh6 Rh1 Bf8 e4 Kd7 f3 b5 Kf2 h5 Kg2 a5 e5 g3 g7 d3 d6 d2 Ne2 b4 Qa4 d1R Nf4 h4 Nh3 b3 Bf4 b2 Qa3 b1B Kg1 g2 Qe3 Ne7 g8B Bg6 Bb3 Rb8 Bd5 Rb3 Bg8 Nd5 Bh7 Nb6 Kh2 g1R Qc5 Rg3 Ng1 h3 Ne2 Qf6 Rc1 Be7 Ra1 Rf8 e6+ Ke8 Be5 Rd5 Qc4 Rdb5 Qc5 Rf7 Rd1 Bf8 e7 Kd7 Rg1 Bg7 Rd4 Rf8 Rh4 Rf7 Kh1 h2 Rh5 Rh3 Kg2 h1R e8B+ Ke6 Qb4 Kd5 d7 Bh8 Qf8 Kc4 d8Q Be6 Qd7 Rg3+ Kf2 Bh3 f4 Rge3 Qfe7 Bg7 Qf5 Bf8 Qed7 Bb4 Qde6+ Kc5 Bg2 Rf8 Bf7 Be1+ Kf1 Bg3 Qc2+ Nc4 Qc3 Kb6 Qd4+ Ka6 Qc5 Bg4 Bh3 Nb6 Kg2 Bc2 Bd3 Bb1 Bc4 Bg6 Bd3 B4f5 Rc1 Rd1 Ra1 Rd2 Rg1 Rd1 Kh1 Bg4 Bg2 Bh3 Bf1 Rd8 Ba1 Rd5 Be5 Be1 Kh2 Bh4 Bd4 Rf5 Be5 Bg3+
2r3R1/4R3/2qRB3/2Qn2Rn/2P1p2p/1PnQP1nK/p1n1bN2/Bbk1q3 w - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 f4 e5 g5 e4 Nc3 Bd6 Nd5 Be5 fxe5 b5 a4 bxa4 Ne7 g6 Nf5 gxf5 h5 f4 Bd2 Ra6 Bc1 Rg6 hxg6 Qb6 Qd2 Qc7 Qd1 Qd8 Kf2 Ke7 Kg2 Ke6 c4 Kf5 e6 h5 b3 d5 e7 h4 e8Q a3 g7 f3+ Kh2 a4 g6 d3 Bg5 f2 Qc1 d4 Nh3 a2 Be7 d2 Bg5 d1Q Qd2 a3 Bf6 d3 Qb2 d2 Qc2 Qc7+ Kg2 Na6 Bd4 Nf6 g8R Nb4 g7 Nbd5 Qb1 Qe1 Qf8 d1N Bb2 Nh5 Qd3 N1c3 Qe8 Qc6 Rd1 a1N Qd8 a2 Re8 Nc2 Ng5 Kf4 g8R Bg4 Re5 f5 Rg1 Bf3+ Kh2 Bg4 Bg2 f1B Bh3 Bf3 Qe7 Bg4 Rg7 Rc8 Rg8 Bf3 Ba1 Bg4 Qd4 Bf3 Qdc5 Bg4 Rd4 Ke3 Qed6 f4 Re7 f3 Qd8 f2 Qd7 Bf3 Be6 Bg4 Nh3 Bf3 R1g5 Bg4 Nf4 Bf3 Nd3 Kd2 e3 B3e2 Nb2+ Bd3 Nd1 Be2 Kh3 f1N Nf2 Nfg3 Qd8 Ndb4 Rd6 Nbd5 Qf8 Kc1 Qf6 Ncb4 Qfd4 Bb1 Qd3 Nc2
6b1/Bb1n2b1/1PQQ2nB/p2P1r1q/2KRn1p1/1N3p1b/3B1P2/q2BN1k1 w - - 0 1 legal: proof: d4 b5 c4 d5 a4 h5 axb5 c5 g4 hxg4 Ra6 cxd4 Ra2 d3 Ra1 d4 b4 a5 Ra4 e5 Bh3 d2+ Kf1 Ra7 Ra2 Rd7 Kg2 Rd6 Ra3 Rd5 cxd5 e4 Rd3 exd3 Kg3 Qf6 Bf1 Qe7 Kg2 Qd8 h4 Ke7 e4 Kf6 b6 Ke5 h5 Kf4 e5 f5 h6 g5 b5 g3 b7 Nd7 b8B Ne7 b6 Qe8 h7 Qh5 Nf3 Bb7 Nh4 Bg7 Rh3 Ng6 Ba7 Rf8 h8B g4 Kg1 g2 e6 Ke4 e7 f4 Rg3 Rf5 Qb3 d1N Qb4 d2 Be2 Nc3 Qd6 d1B Nf3 d3 Ne1 Bc2 Bd1 d2 Rh3 Bd3 Rf3 Bf1 e8Q+ Kd4 Qee6 Ne4 Rd3+ Kc4 Be2 d1B Bd2 Bc2 Bd1 f3 Rd4+ Kb3 Bh6 Kb2 Nd2 Kc1 Qe8 Bf8 Be5 Bg7 Bef4 Bb1 Ba4 Bbd3 Nb3+ Kd1 Bd2 Ke2 Qee6 Bc8 Qf6 Bda6 Qc6 Bab7 Qfd6 Nde5 Na1 Be6 Bc2 Nd7 Nb3 Nh4 Kh2 Bg8 Kg1 Nef6 Kh2 Ng6+ Kg3 g1Q+ Ng2 Qgh1 Ne1 Bh3 Bd1+ Kf1 Ng2 Ngf8 Ne1 Re5 Kf4 Rf5+ Ke3 Kg1 Kd3 Ng6 Kc4 Ne4 Qb5 Qh2 Qbc6 Qe5 Rd3 Qb2 Rd4 Qa1
2n5/r2rPp1R/Nqr5/QnrP1R1p/BQR2K1P/2p4q/2qr3R/2Bk4 w - - 0 1 legal: proof: d4 d5 f4 a5 b4 axb4 c4 dxc4 Nc3 e6 d5 e5 Nb5 Be7 Nd4 exd4 Be3 Bd6 Bc1 Bf8 g4 Ne7 e4 Qd7 e5 Qd8 e6 Ng8 Rb1 Bd6 Ra1 Be5 fxe5 Qe7 Ke2 Qd6 Ke1 Qd8 g5 h6 e7 Kd7 Bh3+ Ke8 Rb1 Bf5 Bf1 Kd7 Ra1 Bh7 g6 Ra5 gxh7 Ra8 Kf2 c5 Kg3 g5 e8R b5 a4 g4 h4 c3 a5 d3 a6 b3 e6+ Kd6 a7 Ke5 Qe2+ Kd4 Qd2 c4 Qe2 c2 Qe4+ Kc3 Qe1+ d2 Qe2 d1R Rb1 h5 Qh2 b4 Bf4 c1R Bd2+ Kc2 Qg2 b2 Be1+ Rd2 Qe2 b3 Rh2 Qc8 Qe3 Ne7 Qc5 Nbc6 Nh3 Nd4 Nf4 Kd1 Nd3 Nb5 Kf4 g3 Qb4 g2 Nc5 g1Q Na6 Qb6 Rf8 Qd7 Rc8 Rd8 Rc5 Nc8 e7 Qh3 h8R Rd6 Rh7 Rc6 Ra1 b1Q Ra4 c3 Rc4 b2 Bg3 Rb8 a8Q Qc2 Bf2 b1R Be3 Rb7 Be2+ Ke1 Bd1 Rd7 Ra2 Rb2 Rf2 Ra1 Qa7 Qd3 Ba4 Qc2 Qa8 Kd1 Qa7 Re2 Bc1 Ree6 Rh2 Rc5 Qc7 Rec6 Qd8 Qb7 Qda5 Qb6 Rf2 Qb3 Rh2 Rg2 Re2 Qc2 Re5 Rd2 Rf5 Qb7 Qc7 Nca7 Bb3 Rb1 Nb8 Ra1 Qd8 Raa6 Qda5 Nc8 Ba4 Ra7 Na6 Qb6
1r2Rr2/1bpR1P2/1prBQ3/6R1/1rprnQ2/Rrq3q1/1P1PN3/1k3KN1 w - - 0 1 illegal: No proof kernel forced: bxDB
2bn3q/2Nk3K/2qn1B1Q/1p1pp3/q1nP1P2/1N2b2q/RP2b1N1/N2BQ3 w - - 0 2 legal: proof: e4 b5 g4 a5 f4 h5 a4 bxa4 Ra3 g5 Rb3 f5 Rb5 fxe4 Rb6 Ra6 Rb5 Rf6 Rb6 cxb6 h3 Rf5 gxf5 g4 h4 b5 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Qb6 Bd3 Qc7 Bf1 Qd8 Ke2 d5 c4 e6 f6 a3 g6 g3 g7 e3 Kf3 g2 c5 e2 c6 e1Q f7+ Ke7 c7 a4 Ne2 g1Q Nd4 h4 Nb3 h3 Be2 a2 Na1 Qh2 Kg4 a3 Kh5 Nc6 Kg6 Nh6 g8Q Nf5 Kh7 Nd6 Qg7 Kd7 Qh6 e5 d4 Qc3 Bd2 Qe8 Bh5 Nd8 Be1 Qc6 Nd2 Be7 Rg1 Bh4 Ndb3 Bf2 Be2 Be3 Bh4 Qg3 Qe1 h2 Bf6 h1B Bd1 Qh3 Rg7 Bf3 Rg3 Bb7 c8N Be2 Ne7 Bc8 Nf5 Qf8 Nh4 Qe8 Nc2 a1N Ng2 a2 f8N+ Kc7 Nd2 Nb3 Ne6+ Kd7 Nc7 Na5 Nb3 a1Q Rf3 Qa4 Nca1 Bg1 Rd3 Be3 Rc3 Qb7 Rc6 Nac4 Ra6 Qc6 Ra8 Qb4 Ra3 Qa4 Ra2 Qh8+
r2n3k/b2QR3/2P1N1p1/QQ1R2B1/2Pnp3/p1P1n3/Qp1r3b/KNb1q3 w - - 0 1 illegal: No possible last move, all moves rejected
1k1bN2R/2qp1nQ1/3N1rp1/b3pp1Q/2B2K1P/P3P1N1/4R1rn/3nq1N1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 a5 f4 axb4 g5 e6 e3 Ke7 f5 Kd6 f6 Qe7 fxe7 Kc6 Kf2 f6 Bd3 b6 Ke2 Ba6 Ke1 Bb5 Bf1 Bd3 Kf2 Bg6 Ke1 Be8 g6 Bf7 gxf7 h6 Ba3 b3 Bd6 Ra5 Bf4 Ra8 Bg5 hxg5 Kd2 Kb7 e8N g6 c4 g4 h4 b2 c5 d3 Nc3 b1Q Bh3 g3 Bg2+ Nc6 Nc7 b5 Qc1 b4 Bh3 b3 Qb2 f5 Qc2 g2 Qb2 Ne5 c6+ Kb8 Bg4 Qc2+ Ke1 d2+ Kf2 d1N+ Kg3 Nf3 Ne8 Nh6 Rh2 Bb4 f8Q Nf7 Qh6 Rf8 Ne4 Ba5 Qbg7 b2 Qh5 b1Q Kf4 Qb4 Rc1 Qe1 Ng3 Ra6 Rb1+ Rb6 a3 Rb2 Rc1 Qc5 Rc2 Bd8 Re2 Qc1 Rh1 Nh2 Bf3 Qc5 Bd5 Ra2 Bc4 Qa7 Nh3 Qb6 Rf1 g1B Rff2 Qc5 Rc2 Qb6 Rfe2 Bf2 Ng1 Qc7+ Nd6 Ne5 Ne8 Rf6 Rb2+ Qb4 Rbc2 Be1 Rc1 Qb1 Rcc2 Ba5 Rb2+ Ka7 Rb8 Qb4 Rc8 Qe1 Rb8 Qc8 c7 Nf7 Rb6 Qb7 c8N+ Kb8 Rc6 Qc7+ Ncd6 Qc3 Re1 Rg2 Re2 Qe1 Rb6+ Ka7 Rb8 Be7 Rd8 Qc8 Nc7 Kb8 Rh8 Bd8 Nce8 Qc6 Rc2 Qc7 Re2 e5#
4q3/P1Q2n2/Kn2k2N/R1P2r2/R3N1r1/PNb1pbN1/p1p2Bpq/1qQ5 w - - 0 1 illegal: No proof kernel
2KN1NR1/pQrn2q1/3bq3/2k1p1Rb/2P2pB1/n3b1NP/1r1p3P/1Q3N2 w - - 0 1 illegal: No possible last move, all moves rejected
4rNB1/2p1N3/1b2Rbpp/Q2n3P/RpnQP2k/r1N5/1P4n1/N1n2K1q w - - 0 1 legal: proof: d4 a5 c4 e5 g4 exd4 a4 b5 cxb5 f5 b6 fxg4 Bd2 Ba6 Bb4 Bb5 axb5 axb4 h4 Ke7 e4 Kf6 f4 d5 f5 h6 b7 g6 b6 g3 h5 Kg5 f6 g2 f7 d3 Qa4 d4 Qe8 d2+ Kf2 d3 Na3 Nf6 Ne2 Nc6 b8Q Nd5 b7 Nd4 Qa4 Bg7 f8N Bf6 Qa5 Nb3 Nc2 Nc1 Nc3 g1B+ Kg2 d1N Qba7 d2 b8N Qd6 Bc4 Qh2+ Kf1 Bb6 Nc6 Kh4 Ne7 Rg8 Rg1 Qh1 Ra4 Re8 Na1 N1e3+ Kf2 Ng2+ Kf1 d1N Bb3 Bf2 Qd4 Be3 Qe5 Bb6 Qd4 Ndf4 Bf7 Nd5 Be6 Rh8 Bg8 N1e3+ Kf2 Ngf4 Rg5 Nc4 Re5 Ng2 Re6 Rh7 Nc6 Rd7 Ne7 Ndf4 Qe3 Rd3 Qec5 Nd5 Qd4 Qh2 Kf1 Rh3 Ne2 Ra3 Nc3 Qh1+
2qK1N2/np1N4/p1Q1b2p/P1r1BB2/3rp2R/1P1bn1nQ/P1k5/n2N2N1 w - - 0 1 illegal: No possible last move, all moves rejected
4q1n1/1NN2Q2/NKrn1R2/p1pPN3/2PPB1n1/1p3q2/3B2pk/Q1b1q2r w - - 0 1 illegal: No possible last move
4Kqb1/3p3B/1Q5q/p2qBPN1/B1bPQ3/rPk2prB/p2q3N/2n1R3 w - - 0 1 legal: proof: a4 c5 h4 g5 e3 gxh4 a5 c4 b3 c3 a6 bxa6 Ra4 a5 Ra2 a4 Rb2 cxb2 Ne2 f5 Ng1 e5 Qe2 f4 Qd1 f3 Ba6 Bh6 Bf1 Bf4 exf4 Qa5 Nc3 Qc7 Nb1 Qd8 Ne2 e4 Rh3 e3 Rh1 Na6 Ng1 e2 Rh3 Nb4 Rh2 Nd5 Rh1 Ne3 fxe3 Kf8 Kf2 Ke8 g4 Kf7 c4 Ke6 c5 Kd5 e4+ Kd4 g5 a5 g6 h5 c6 h3 Kg3 h4+ Kg4 e1Q Kf5 h2 c7 h3 e5 a3 g7 a2 Kg6 Nf6 Kf7 Re8 g8B Ra6 e6 Ne4 e7 Nc5 Bh7 Rg6 f5 Nd3 Bg2 Bb7 c8B Rg3 Qc2 Reg8 e8Q Bd5+ Qe6 R8g4 Ba6 Qh8 Bb5 Qe2 Na3 b1B Nc4 Re4 Ba3 Nc1 Ne3 Qf2 d3 Qd2 Bd6 Rh4 Ng4 Qf8+ Kg6 Bc4 Ba4 Bd5 Qc6 Bc2 Qb5 Kc3 Qe4 Bg8 Qb6 Bd1 Bf4 Be2 Bb8 Qc5 Kg7 Qd5 Kf8 Bf1 Ke8 Be2 Ne3 Rf4 Nf1 Rfg4 Qee6 Rb4 d4 Bc4 Bb5 Ra4 Qe4 Ra3 Be5 Qd6 Ba4 Qd5 Ne2+ Kb2 Nf4 Kc3 Rg1 h1Q Ne6 h2 Bh3 Qhg2 Ng5 h1Q Nh2 Qge2 Ne6 Qh6 Ng5 Qd2 Re1 Qg1 Bb8 Qge3 Bc7 Qf4 Bb8 Qfd6 Bc7 Q6c5 Be5 Qcf8#
4b1k1/NR3p2/Pb1bQQb1/N4K2/5Brp/1q3Np1/2PpN2P/1q1b1r1B w - - 0 1 legal: proof: d4 c5 b4 d5 e4 dxe4 a4 a5 d5 axb4 Ra3 Nh6 Rd3 Ng8 g4 h5 f4 e5 Qf3 e3 Ke2 h4 Rd1 e4 Rd4 cxd4 Ke1 Nd7 Qd1 Ne5 fxe5 Nf6 Qd3 Qb6 Qd1 Nh5 gxh5 Qd8 Ke2 b5 a5 g5 h6 g4 e6 g3 h7 d3+ Ke1 e2 Kd2 e1B+ Ke3 b3 Kf4 b2 e7 b4 d6 b3 Ne2 d2 Nd4 e3 Bg2 e2 Bb7 Bf2 Ba6 e1Q Nc3 b1B Rf1 b2 Qg4 Qb6 Nf3 Bd7 Bb7 Qb3 Qe6 Ba2 Kf5 b1B Bb2 Rg8 h8Q Rg4 Ne2 Bb6 Be5 Rb8 a6 Bb5 Ned4 Be2 Ba8 Bd1 Ne2 Qb2 Rf2 Bc7 Nf4 Be2 Rf1 Bb3 Ng5 Ba4 Nfh3 Rd4 Ng1 Bh5 Qhf6 Ba2 Bh1 Bc4 N5f3 Rg4 Bf4 Qea1 Re1 Be2 Rb1 Qba2 Rb3 Rb4 Rb2 Re4 Rb1 Bd1 Rb7 Re1 Ne2 Q1b1 Qee5 Kd7 e8N Rf1 Qe3 Be7 Qee6+ Kd8 d7 Bb6 Nd6 Qd5+ Qee5 Qdb3 Nc4 Bb5 Qfe6 Bd6 Na5 Bc6 Qb2 Ba4 Qg6 Ke7 d8N+ Kf8 Ndc6 Bb5 Qe6 Kg8 Na7 Be8 Qbf6 Bg6+
Bbb2k2/R2n1rp1/ppN1bPRK/1Q1N2QQ/p1p2P2/1P1qQ3/3n4/2q5 w - - 0 1 illegal: Other
n3NRbr/4P2N/Pp2b2n/1p3p2/R3pPp1/2N1Bk2/1Q1b1N1Q/2rn2K1 w - - 0 1 legal: proof: c4 h5 g4 e6 gxh5 Ba3 b3 Bf8 c5 b6 b4 a6 b5 axb5 c6 Qh4 Nh3 Qe7 Ng1 Qd8 d4 Qg5 Bd2 Qg3 Bc1 Qa3 Bb2 Qa6 Bc1 Qb7 cxb7 Be7 Nc3 Ba3 Nb1 Bf8 d5 exd5 e3 Be7 e4 Bf8 e5 Ke7 Bd3 Ke8 Be4 dxe4 Kf1 Ke7 f4 Ke6 h4 Kf5 a4 g5 h6 d5 a5 c5 e6 d4 h5 c4 h7 c3 h6 c2 e7 d3 Qe2 d2 Nh3 d1B Kg1 Bg7 Be3 c1N Qb2 Kg4 Ra4 f5 Nc3 Nd3 Nf2+ Kf3 Rh4 Na6 b8N g4 Nd7 Ra7 Nf6 Nc7 a6 Na8 Ne8 Bb3 Rh5 Rd7 Rg5 Be5 Rg6 Bd4 Rf6 Rc7 Rf8 Bce6 Nfd1 Nf6 Qh2 Nb2 Nf2 Rg8 h8N Nd1 Nf7 Rh8 h7 Ng8 Ra1 Nh6 Ra4 Rg8 h8Q Ba2 Qh7 Rh8 Qg7 Bc5 Qd4 Bb4 Qd2 Rc4 Qb2 Ba5 Nfd6 Bg8 Nf6 Rc7 Nde8 Bae6 Nh7 Rc8 Nd5 Bd2 Nc3 Rc5 Nd5 Rc2 Nc3 Rc1
3brq2/r6r/1rKP2p1/2N2BPk/Q1n1B1bP/NR2B3/qbnr4/1B1q2Q1 w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 e5 f4 exf4 g5 Qd6 Ra3 Qe7 Rg3 Qd8 Rg4 hxg4 Kf2 b5 d4 f5 e4 Kf7 h4 Kg6 a5 c5 a6 b3 a7 f3 Ke3 g3 d6 g2 e5 b4 e6 f2 d5 f4+ Ke4 f3 e7 b2 d7 b3 d6 c4 Kd5 c3 Qd3+ Kh5 e8B+ g6 Qb5 c2 Ne2 g1Q Rh2 Nh6 Qa5 Be7 Qa4 Ng4 Qc4 Rh7 Rh3 Na6 Bd2 c1B Bf4 Ne5 Nbc3 b1R Bd2 b2 Qb4 Nc4 Qa4 Nb4+ Kc5 Qa5+ Nb5 Nc2 d8Q Ra1 Qb6 b1R Kc6 Bd8 Ned4 Bb2 Nb3 Bg4 Bd3 f1Q Na3 f2 Nc5 Qd1 Re3 f1R Bd7 Rf2 B7f5 Qgf1 Bc1 Rb8 a8B Rd2 Bde4 Qa7 Rb3 Qf7 Bb7 Qf8 Bbc8 Qg2 Bce6 Ra8 B6d5 Raa7 Bd3 Rae7 Bd5e4 Re8 Qba7 Re2 Bf4 Rd2 Be3 Bc1 Nb7 Nb6 Bd4 Nc4 Rb5 Qgf1 Q4a5 Ne1 Nc2 Qf2 Q7b6 Ra4 Na3 Ra2 Qaa6 Rbb2 Bb1 Qfd2 Rb4 Ra5 Qab5 Ra7 Qa4 Q2c2 Bg1 Qb3 Bf2 Rd2 Qe3 Rab2 Nc5 Nc2 Qe1 Qa2 Qg1 Rb3 Be3 Bb2 Rb8 Rb5 Rb6 Rba5 Rb4 Rb5 Rb3 Rb6+
3rrb2/3kq1nB/Rrn2P2/1N4Rb/P3p2n/n5n1/2Q1PKBq/qQ1BB3 w - - 0 1 legal: proof: g4 a5 d4 g5 h4 c5 b4 axb4 Nd2 cxd4 Ndf3 f6 hxg5 Ra3 g6 Ra8 g5 f5 Nh2 Bg7 Ng4 fxg4 Qd3 Bh6 Qd1 Bf8 a4 h5 c4 e5 f4 b5 g7 d5 g6 d3 c5 g3 f5 e4 c6 b3 f6 h4 c7 b2 Bh6 b1R Ra2 d4 Rc2 b4 Nf3 h3 Rc4 b3 Qc1 h2 Nd2 b2 Bg2 Bg4 c8Q Nc6 Bh3 g2 Nf3 g1Q+ Bf1 d2+ Kd1 Nge7 g8B Bh5 g7 Nf5 Rb4 Nh4 Qc7 Qe7 Bh7 Rd8 g8B Qg2 Qb8 Kd7 Rg1 h1N Bb3 Qh2 Bg2 Ng3 Rb6 Re8 Ra6 Rg8 Kc2 d1N Kd2 d3 Ke1 Ne3 Kf2 d2 Nd4 d1Q Nb5 Nef5 Bd2 Ng7 Qc4 Qc1 Be1 Qc3 Bd1 Qca3 Rb6 Qa1 Qc5 Rc1 Ra6 b1N Qc2 Na3 Qe5 Rh8 Qeb2 Rb1 Qa2 Rb4 Qab1 Rd8 Nd4 Rbb8 Nb5 Rb6 Ke3 Nh1 Bf1 Rg8 Rg5 Ng3 Qd2+ Qd6 Qdb2 Be7 Bg2 Rge8 Q2c2 Bf8 Kf2 Qe7
4rn2/4N2q/3q2nb/1r1q1nRK/R1P1b2Q/p2QQN1P/P1Q1B3/2br2qk w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 Ke2 Kd7 d4 Ke6 c4 Kf5 f4 g5 d5 e5 d6 a5 c6 b5 d7 g2 h3 a4 c7 b4 Qc1 b3 Qc2 g3 Qb2 e3 Kf3 e4+ Ke2 a3 Nc3 g4 Nd1 Rh5 Qb1 b2 Nf2 Nh6 Nd1 Bb7 Nf3 g1R c8Q g2 Qc2 b1Q Rh2 g3 Ke1 e2 Kd2 e1B+ Ke2 Bd2 Ne5 Bc1 Nd3 e3 Nc3 Be4 Ne1 Rh1 Qd3 g1Q Nd5 g2 Qc5 Qg5 d8Q Nd7 Qde7 Re8 Nf3 Qb8 Qb6 Qd6 Rb1 Qgg6 Qc2 Qh7 Rb4 Bg7 Qbd8 Nf8 Qh4 Rg5 Ra4 Rh5 Ke1 e2 Qb6 Rg5 Qe3 Rh5 Qed3 Qd4 Qe3 g1N Kf2 e1Q+ Kg2 Ne2 Ne7+ Ke6 Qcd3 Rb5 Qc2 Q6d5 f5+ Kd6 f6 Nf5 f7 Bh6 Qcd3 Qb4 Kf2 Nf4 Be2 Rd1 Rg2 N4g6 Rg5 Ke6 Qc2 Qbd6 Qd3 Nd7 f8Q Q4c5 Qh8 Ndf8 Qb2 Qcd4 Ng1 Ke5 Qbc2 Qa1 Rg2 Nd4 Kg3 Nf5+ Kg4 Qad4 Kh5 Q4b6 Qe1 Qbc5 Qed4+ Kf4 Nf3 Qcb6 Qf6 Qg1 Rg5 Qf1 Qf2 Qh1 Rg1 Qg2 Qfe3+ Kg3 Re1 Qf2 Qh4+ Kg2 Rf1 Qe1 Rf2+ Kh1 Rg2 Qf2 Rg5 Qg1
2r5/4nNKP/3nqN2/1nNp2r1/1RQN3n/qB1PQP2/3bq1bk/2R1b1r1 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 a4 h5 Ba3 hxg4 axb5 fxe4 b6 Bb7 b5 Bc8 Bb4 cxb4 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Kf5 Kh4 Kg6 d5 c4 a5 h3 e5 d3 g3 c5 e3 b7 e2 c6 e1Q b6 a4 c7 b3 Qe2 e4 Qe3 g2 Qe2 e3 Qd2 a3 Qd1 b2 Qc1 e2 Nc3 b1N Qb2 a2 Na4 Qe7 Qb3 Nh6 Nc5 Nc6 b8N Na3 b7 Rg8 Qc3 Qe6+ Kh7 g5 Rc1 a1Q Qc4+ g4 Nbd7 Rg5 b8Q Nf7 Qa7 Bh6 Nf6 Nd6 Kh8 Bd7+ c8N Nab5 Rb1 Qa6 Rb4 Qa3 Qb6 Ne7 f3 Kg3 h4 Qd1 h5 e1B Nb7 Qde2 Qe3 Rb8 Nc5 Ra8 Nh3 g1N Nf4 Nh3 Rg1+ Kh2 Kh7 Bf8 h6 g3 Kh8 g2 h7 Qe5 Nfe6 Bh6 Nd4 Nf4 Na4 Bh3 Nc5 Qeb2 Be2 Qe6 Rf1 g1R Bd1 Ng2 Ba4 Nh4 Bb3 Bc3 Rc1 Qe2 Nfe4 Bg2 Nf6 Ne8 Nd6 Be1 Nf7 Rc8 Nb7 Re5 Nc5 Ned6+ Ng8 Bf4 Kg7 Rh5 Nf6 Rf5 Qe4 Bfd2 Qe3 Rg5+
1r2nr1B/KQ3N2/bn2r2b/1R1r3p/4B1Q1/6QP/1P1PRbb1/kbqr2Q1 w - - 0 1 illegal: No proof kernel forced: bxDB
n1k1q3/2b1nr2/bBN1p1rR/1P1n2Nb/3nP2b/1Q2RP1r/4R3/2K1R1nQ w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 Kd2 d5 e4 Kd7 b4 g5 c4 a5 h4 g3 b6 e6 b5 g4 c5 d3 h5 a4 h6 a3 h7 a2 b7 d4 Qb3 Ra7 Qc2 Qe8 Ne2 g1N Ba3 g2 Kc1 d2+ Kd1 g3 Bc1 Bd6 Qb2 Na6 b8R Nf3 Ra8 g1N Rh5 g2 Qb3 Nc7 Rh6 Ne7 c6+ Kd8 Kc2 d1N Be3 d3+ Kc1 Nd4 Nd2 Nc3 Nf3 N3d5 Ng5 Bh2 Rb1 a1B Rb2 Rb7 Ra3 Na8 c7+ Kd7 Rc2 Bc3 Rca2 Be1 Rb2 Ra7 Rb1 Bb7 c8R Ba6 Rc2 Bc7 Rd2 Kc8 Rdb2 Rf8 h8Q Rf3 Qh7 Rh3 Rd2 Nc2 Nd4 Rb7 Nc6 Nd4 Re2 d2+ Kb2 d1B Kc1 Ndf3 Bb6 Nd4 Rc2 Bh5 f3 Bh4 Re2 Bb8 Re3 Rd7 Ra2 Bc7 Rd2 Ng8 Rde2 Rf7 Kd2 Nge7 Rbe1 Rf8 Qh8 Rf7 Kc1 Rh1 Qg8 Bh2 Nh7 Nh3 Ra2 g1R Rae2 Bc7 Qg2 Rh2 Qh1 Rg6 Ng5 Ng1 Qb1 Rh3 Qb2 Bhg3 Qb3 Bh4
3NB1B1/b2Q2bq/R4Bpn/2B1r2N/P4Q2/n1k1b1qb/2P3P1/1r1bKb1n w - - 0 1 illegal: No proof kernel
R2b4/2PQp2b/1K4rB/Rb1Q1bP1/B6b/bqn1Q2r/2n1P2r/QN2kq2 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 d4 cxd4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 Kf2 a5 b4 d5 h4 Kd7 c4 Kd6 c5+ Ke5 c6 Ke4 h5 f5 b6 f3 b7 g3+ Ke1 f2+ Kd2 d3 Kc3 f4 b5 f3 b6 d2 h6 Ke3 h7 a4 Kb4 g2 Kc5 a3 Ra2 d4 Rc2 d3 Rh6 a2 Bb2 a1B Qe1 d1B Rh2 d2 Rc3+ Qd3 Rc1 Ra3 Rc2 Bg7 Rh5 Qb3 Rh4 Bc3 Rg4 Bf5 Rc4 Nf6 Rf4 Ba5 Ra4 Nd5 Bg7 Bb2 Bh6 Nc3 Rc1 Rg8 h8Q Rg6 Qe8 Bdc2 Qd7 d1B Ra1 Bcd3 Ra2 B1c2 Qa1 Kd2 Qd5 Nb1 Qd7 Ke1 Qd5 Bb5 Qd7 Bd2 Ra5 Bf4 Ra8 Bc7 Qd5 Bd8 c7 Nc6 b8Q Bc1 b7 Nc3 Qa7 Nb4 b8Q Bb1 Qbb6 Nc2 Qbd6 Bb2 Qd7 Bc1 Nh3 g1B Bg2 f1R+ Nf2 Bh2 Qb6 Bg3 Ne4 f2 Nd2 Bh4 Qbe6 Rh1 Qe3 f1Q Bh3 Raa6 Ra5 Rh2 Bg2 Raf6 Bh1 Rf7 Be4 Rh7 Bf3 Rg8 Kb6 Ba3 Be4 Nb4 Bc2 Rg6+ Q7d6 Rh8 Bd1 B1d3 Nb1 Nc2 Q6c6 Bdc4 Qd7 Bg8 Qce6 Bh7 Qed6 Rgg8 Qd5 Rg6+ Q7d6 Qb4 Bf8 Bf2 Qf7 Bg8 Ra4 Nd4 R4a5 R8h3 Qd5 Bh4 Bh6 Bh7 Ba4 Nc2 Q6c6 Qb3 Qce6 Rg7 Qed7 Rg6+
1bq4R/2P5/2RrB1Rp/BPnQ1n1P/kn2nb2/1b6/n2R1bQ1/3Nrq1K w - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 g6 Nc3 fxe4 f5 g5 Nce2 Nf6 Nf4 gxf4 Bc4 Ng8 Bd3 Bb7 Bf1 Bc8 Kf2 d5 c4 Kd7 b4 e5 h4 a5 g4 a4 Kg2 h6 f6 f3+ Kh2 e3 b6 Kc6 c5 e4 f7 f2 g5 a3 h5 a2 g6 d3 g7 Kb5 b7 e2 c6 e1N Nh3 d4 Bd2 e3 Ng1 e2 Bh3 f1Q Be3 d2 Qc1 d1N Qd2 d3 Be6 Nc3 Bf4 Nd7 b8R+ Ka4 b5 Ra6 Rc1 a1B Ba2 Nc5 Qb2 d2 Bc7 d1N Be5 Nc2 Qb1 e1B Be6 N3e4 Ne2 Bd4 Rb6 Ne7 g8Q Ndc3 Bc7 Bd2 Qg2 Nb4 Qd3 Nca2 Rc3 Bf2 Qd5 Nf5 Rc4 Be7 f8R Beg5 Rg1 Bgf4+ Kh1 B2g3 Rb8 Bde3 Ba5 Rg8 Rf7 Re8 Rd7 Bb7 Ra8 Qc8 Rc2 Bb8 c7 Bgf4 Rd2 Rd6 Nc3+ Ka3 Nd1 Ka4 Rh7 Bc6 Rh8 Bf2 Qe5 Bd5 Ra6 Bb3 Qd5 Qe2 Re1 Bg1 Rc6 Qf1 Re3 Rg8 Rh3 Rg3 Rh4 Re3 Rg4 Re1 Rg6 Bf2+
3Q2b1/3P3q/KP1q4/rRb1Nbn1/2Q1q1BB/k1p1q1b1/2P2n1Q/Nr2Q1q1 w - - 0 1 illegal: No possible last move, all moves rejected
Nr1N3Q/Pp3qbb/1PRr2BQ/2P2q1n/2n1Nbk1/3R4/K1bb1q2/5N1q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 hxg4 d4 c5 b5 cxd4 Ba3 Nc6 Bd6 Nb8 Bb4 axb4 Kd2 Kf7 Kc1 Kf6 Kb2 Kg5 a4 e5 c4 d5 c5 d3 h3 g3 a5 b3 b6 e4 f3 e3 f6 g2 f7 e2 a6 e1B a7 d4 Qe2 d2 Qc4 d1B Qc3 d3 Be2 d2 Qc1 Nf6 Ra3 Rh6 Bd3 Nc6 Ne2 g1B Bg6 Rb8 Nec3 Qd7 h4+ Kf4 h5 Na5 Rh3 Bh2 Ne4 Nc4+ Ka1 b2+ Ka2 Qd5 Rd3 Bc2 Rg3 Bf5 Rg4+ Ke5 f4+ Ke6 Rh4 d1Q Nbd2 Qg4 Nf1 Bd2 Rhh3 Qe2 Rhe3 Qf2 Rg3 Rh8 h6 Nh5 h7 Rd8 Rg4 Rd6 Rg2 Rg8 h8Q Bg3 Bh7 g5 Bg6 g4 Rh2 Bg7 f8N+ Ke7 Rg2 Qf7 Ne6 Rb8 Nc7 Bh2 Na8 Ke6 Rg1 g3 Rh1 g2 Rg1 Bh3 f5+ Ke5 f6 Kf4 Rh1 Bf5 Rg1 Kg4 Rh1 Qe6 f7 g1Q f8N Qf7 Ne6 Bhf4 Rhh3 Qh1 Nd8 Nf6 Rh7 Nh5 Rh6 Qd5 Bf7 Bh7 Rf6 Qe6 Bg6 Qf7 Re6 Rd7 Rc6 Rd5 Rh3 Rd6 Rd3 Be1 Rb3 Bfe5 Rc8 Bd3 Qh6 Bd2 Rc6 Bef4 Neg3 Ne3 Ka3 b1Q Rc3 Be4 Rb3 Qd3 Ka2 Nc4 Rc3 Qdd5 Rf3 Bd3 Ne4 Bc2 Rd3 Qdf5
2br1q2/b2p2r1/b2k4/q1NP4/PnQR1q1Q/NNR2P2/b1BKbnq1/4N3 w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 b5 a4 b6 a3 Bb2 axb2 Nh3 cxb6 Ng1 b5 Be2 b4 Ba6 Qc7 Bf1 Qd8 c4 b5 d4 e5 g4 Ke7 a4 h5 d5 h3 f6+ Kd6 g5 h2 f3 h4 g6 b3 f7 b4 g7 h3 Ra2 e4 Ra3 e3 Bg2 e2 Kd2 e1Q+ Kd3 Rh7 Qd2 Nf6 g8N Nc6 Qg5 Rg7 Bf1 Ng4 Ne2 Nf2+ Ke3 Be7 Nf6 Qf8 Qh4 Rb8 Rg1 h1Q Rg4 h2 Nh5 Qg2 Nf4 h1Q Nd3 Qhh2 Rd4 Qc3 Nc1 Qf4+ Ke2 Bd8 Ne1 Bb6 Qh8 Ba7 Qh4 Qh1 Bh3 Qg2 Bf5 Ra8 Bc2 Rb8 Ra2 Ra8 Na3 b1B Ra1 b2 Nb3 Ba2 Rad1 b1B R1d3 Bb7 Re3 Rd8 Red3 Bc8 Re3 Qh8 f8N Qg8 Ne6 Qgf8 Nd2 b3 Nc5 b2 Ndb3 Qa5 Rc3 Qfg4 Kd2 Nb4 Bd1 Bg6 Bc2 b1B Nb7+ Kc7 c5 Bd3 c6 Ba6 N7c5 Kd6 c7 Qe4 Bd1 Bbd3 Bc2 Bcb7 c8Q Be2 Ncd3 Qe5 Qc4 Bc8 Ndc5 Qef4+
Rr3r2/2Qr1np1/K2RB1Pb/q1qnbqB1/r2R1Pk1/3NQ3/3RP3/2q2b2 w - - 0 1 illegal: No possible last move, all moves rejected
2b2Q1b/6n1/rN3N1B/Q3P2r/bBq1PKB1/Rr1q2pb/3qqnP1/2B1k3 w - - 0 1 illegal: No proof kernel
1q6/3n2B1/BP2Q1bK/R2N1Q2/2Brbn2/Prr1qpRq/5P2/k1br1Bq1 w - - 0 1 legal: proof: d4 a5 h4 b5 c4 g5 b4 gxh4 Nc3 e6 Nd5 bxc4 b5 e5 Nb4 axb4 dxe5 Ra5 Qd4 Ra6 Qd1 Ra8 Kd2 Ke7 Ke3 Ke6 Kf4 h5 g4 d5 e4 c5 g5 f5 b6 b3 g6 d4 a3 b2 g7 b1R Nf3 h3 Rg1 h4 Rh1 h2 Be3 d3 Qe2 d2 Bh3 d1R Bf1 c3 Qd3 c4 Ra2 h3 Ra1 c2 Ra2 c1Q Qd2 c3 Ra1 c2 Bd3 Ne7 Kg5 f4 Re1 h1Q Qa5 h2 Ba6 Nd7 Ng1 Rh3 Ne2 Rb3 Bd4 Rhc3 Kh6 Qe3 Rc1 Qc7 Rg1 Nd5 Rg3 Qb8 Rb1 c1Q Rb2 Ke7 e6 Kd6 e7 Qhf3 e8Q h1B e5+ Kc6 Rg5 Qh3+ Rh5 Bf3 e6 Be4 e7 f3+ Nf4 Bg6 Rb1 Bb7 Qf7 Ra7 e8B Be7 g8B Bg5+ Kg7 Ba8 Qf5 Rc7 Bef7 Rc4 Qe1 Kd6 Be5+ Kc5 Qe2 Rcd4 Be6 N5f6 Bec4 Be4 Nd5 Bf4 Rg5 Nh5+ Kh6 Rc8 Bg7 Rc7 Qe1 Rc6 Bf1 Rc7 Bb7 Rc8 Bg2 Kc4 Rb2 Kd3 Ba6+ Rcc4 Rb1 Kc2 Bf1 Rcc3 Ra1 Kb2 Be6 Rcd3 Bf7 Rbc3 Rb1+ Ka2 Rb5 Ka1 Ra5 Rb3 Qe2 Rdc3 Qc4 Qb1 Qc8 Qe1 Qe8 Bc1 Qee6 Qe3 Bg8 Qg2 Bf7 Nf4 Rg3 Qg1 Bfb5 Qbd3 Bc4 Qdf1 Be8 Nf6 Beb5 Qfg2 Bf1 Nd7 Bbc4 Qh3+
2KBq1bR/2P2q1r/2rn3B/bR3QQP/p2rBb1b/P3r3/1q1N4/n3k1B1 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Nc3 f6 Nce2 fxg5 Ng3 hxg3 Qf3 g4 Qe2 Kd7 Qd1 Ke8 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 Kh4 c4 b5 d4 g5 f4 a5 a3 b4 c6 e3 h3 e2 d5 e1R+ Qe2 b3 c5 g2 f5 Kg3 f6 b2 h4 b1Q f7 a4 h5 Ra6 c7 Bh6 f8B Nf6 c6 Rh7 d6 Qe8 d7 Ne4 Ke6 Qb2 Rh2 Nd6 Nf3 g1B Bg7 Bf2 Qe4 Re3 Kd5 e5 d8B Nd7 Ra2 Nc5 Bgf6 Nb3 Qg6 e4 Bg2 Na1 Bfe7 Be6+ Kc5 Bg8 c8Q Be1 c7 Kf2 Qcf5 g3 Qg4 Ba5 Ne5 Ke1 Q4f5 g4 Nc4 Bf4 Nd2 Qf7 Bh1 g2 Qgg5 g1Q Rf2 g3 Bf6 g2 Bd4 Qh2 Rf3 Qb8 Rb2 g1R Rb5 Rg4 Rg3 Qc8 Bg2 Qce6 Bh1 Qee8 Bf3 Rb3 Bg1 e3 Be4 e2 Rd3 Qg2 Rd5 Re3 Re5 Kd1 Re6 e1B Rh6 Rg7 Rh8 Bh4 Bb2 Rh7 Bg7 Ke1 Bf8 Nc8 Bh6 Re6 Kd5 Nd6 Kc5 Bb4+ Kb6 Ba5+ Ka7 Qe2 Kb8 Qh2 Nb1 Qb2 Nd2 Bfg3 Bh1 Rd4 Bc6 Bf4 Be4 Nc4 Kb7 Rc6 Kc8 Nd6+
1qr3qb/1B1n3Q/1N2bN1r/KR1r2Rp/R6n/1b2q1PP/P2b2k1/Q5rR w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 g4 Bb2 g3 Bd4 d5 cxd5 e6 Bf2 exf5 Qb3 gxf2+ Kd1 f4 Kc1 Ra7 Qd1 Ra8 Kc2 Kd7 Kb3 Kd6 e4 Ke5 d3 h5 g3 c5 d6 b5 h3 f5 d7 f3 Rh2 c4+ Kb2 c3+ Kb3 c2 Bg2 f1R Nc3 c1B Na4 f4 Nb2 f2 Qc2 f3 Nd1 Rh6 Qb1 Bg7 Ne2 Bd2 Ne3 Rd1 Nf4 f1R Nfd5 f2 Rh1 Ne7 Nb6 Rg1 Ned5 f1Q Nf6 Qf4 Bf3 Qh8 d8Q Nd7 Qg8 Nf5 Qh7 Nh4 Qc1 Rb8 Rb1 Qe3 Bg2 Kd4 e5 Qg8+ e6 Bh8 Bd5 Ra8 e7 Rb8 e8R Ra8 Kb2 b3 Re5 b4 Rg5 Rb8 Bb7 Ra8 Rg6 Ke5 d4+ Kf5 Nfd5 Ke4 Rg5+ Kf3 Nf6+ Kf2 d5 Kg2 Qc3 Nc5 Qc7 Be6 Qh7 Rc8 Qe5 Nd7 Qc3 Be1 d6+ Rd5 Qd4 Nf8 d7 Bd2 d8R Nd7 Re1 Rc1 Ra8 Rc8 Kb1 b2 Ra4 Ne5 Qc3 Nd7 Kc2 b1B+ Kb3 Bd3 Qa1 Bc2+ Kb2 b3 Rb1 Bd1 Ka3 b2+ Qd3 Rc3+ Kb4 Bc2 Qh7 Bb3 Rf1 b1Q Rff5 Nc5 Ka5 Qb2 Rb4 Nd7+ Rb5 Qb1 Rf4 Rc8+ Rb4 Bc1 Ra4 Qb2 Qhb1 Qbe5 Qg6 Qb8 Qh7 Bd2+
2Kq2n1/4r3/3b1q1N/pB1r4/N2b4/Pbb2PNn/P4N2/rkBRqrQQ w - - 0 1 illegal: No proof kernel
1nN2KRN/B1N2b2/1N1rpk2/Pb2R3/2brr2P/1bb1Q2Q/4P2n/3rq2b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g5 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Qd7 Ba3 Qd6 Bc1 Qd8 Kf2 f5 a4 Kf7 h4 c5 d4 b5 d6 c4 d5 f3 Ke3 e6 Kd4 f4 Ke5 f2 d7 f1B d6 g3 a5 b3 Nf3 g2 Nd4 Ra6 Nc6 g1R Ra3 b4 Qc2 b2 Qc3 b3 Qd3 f3 Qd1 c3 Qe1 c2 Qf2 Nf6 Nd4 Rg4 Qe1 f2 Qd2 Bg2 Nc3 f1B Rg1 b1B Ndb5 b2 Nd5 Bg7 Nbc7 Bh1 Re3 Ba2 Qd4 Qe7 d8Q b1B d7 Qb4 Qg8+ Kg6 d8N Bd7 Nf7 Bb5 Qb6 Qe1 Kd6 Bh3 Ke7 Bb3 Qa7 Kf5 g6 B3g2 Qd8 Rh7 Nh8 Rf4 Ba3 c1R Bc5 Ng4 Kf7 Ba1+ g7 Rd1 Kf8 Bc3 g8N Rd7 Qb6 Nh2 Re5+ Kg4+ Qf6 Bg6 Nge7 Bf7 Nc8 Rb4 Qf1 Rf4 Re3 Kf5 Re4 Bf3 Rg8 Bfg2 Re3 Be4 Qa7 Bed3 Qh3+ Rg4 Re4 Bdc4 Be3 Rc6 Qd4 Ra6 Qd2 Rc6 Ba7 Ra6 Qde3 Rc6 Ndb6 R7d4 Na6 Rcd6 Nc7 Kf6 Re5 Rge4
K2n3k/2Nb2N1/nQP2bn1/1p2B2r/4R2N/1Prb2nq/2QP3b/rB2r2N w - - 0 1 illegal: No proof kernel
b1q1Q1B1/R1p1n3/1nPBPb1B/q1r1pB1q/P2n4/k6r/rb6/1QR3KN w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f6 d6 Kf7 e5 Ke6 Nd2 Kd5 Nc4+ Kc6 dxe7 Ra5 e6 Ra8 Ne5+ fxe5 e8B Kc5 h4 g5 f4 d5 Kf2 b5 c4 g3+ Kg2 b3 a3 b2 f5 b1R f6 g4 f7 b4 h5 b3 h6 d4 h7 b2 Nh3 d3 Qf3 d2 Ra2 d1Q Qf4 Bg7 f8B+ Ne7 Nf2 Bb7+ Qe4 Qc8 Rh5 Bf6 Kg1 g2 Rh6 Nd7 Qf5 Nb6 Bg5 Rc1 Nh1 b1Q Qf3 Qb4 Bf7 Qa5 Qd3 Ra7 Rh3 Ba8 Bg8 Rc2 Ra1 Ra2 a4 Kb4 c5 Qf3 Qb1+ Ka3 c6 Rb7 Kh2 g1N+ Bd2 Rb8 Bd3 Ne2 Bf5 Nd4 Kg1 g3 Bdh6 Qh5 Rh2 Rb7 Rb2 g2 Rb5 Nc4 Rb2 Rb5 Rb4 Rc5 Rb7 Nb6 Ra7 Ned5 Bd6 Ne7 Qc2 Qd8 Rc1 Qc8 Kf2 g1B+ Kf1 Be3 Qb1 Bd2 Kg1 Bc3 Bf7 Rf8 h8Q Bb2 Qg8 Re8 Qg6 Rh8 Bg8 Rh7 Qe8 Qf7 Bg7 Rh3 Bh6 Qh5
1nNbqN2/1K3Q2/r1p1R1bP/5n2/k3nq1N/1RqP3p/2P1r3/2BNr1bQ w - - 0 1 illegal: No proof kernel
r2Q1K2/1B2B1p1/2Q1Br2/b2Pp1Rb/1n1B1n1n/r1q3N1/1P4P1/1Nqkb1q1 w - - 0 1 illegal: No proof kernel
r1R3bN/r4P1b/2n1prp1/bQ2R3/4b1PN/P3n3/N1n1N1bk/QK2B2q w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g3 f5 exf5 a5 Na3 axb4 Bh3 h4 Bg2 h3 Nb1 hxg2 Kd2 Kf7 c4 Kf6 Kc2 Ke5 h4 d5 h5 b5 c5 d3+ Kb2 b3 a3 b4 f3 d4 f6 d2 h6 d3 g4 Kf4 f7 Kg3 f4 Rh7 f5 Bb7 f6 Na6 c6 Qd5 Nh3 g1R c7 Rf1 Qc2 d1B c8Q d2 Rg1+ Kh2 Qd3 Qh1 Qg6 Bg2 Qd3 e6 Qc6 Bdf3 Qcc3 Be4 Nf4 Ne7 Qb5 Nc6 Ne2 Rf5 Ra2 d1N+ Ka1 Bc5 f8N Bb6 Rc2 Ne3 Ng6 Ba5 Nh4 b2+ Ka2 Rf3 Re1 Rf2 Qd4 Rf3 Nbc3 b1B+ Ka1 b3 Na2 Nab4 Bd2 Rf2 Rc5 Bbd3 Re5 Nbc2+ Kb1 Rf5 Qa1 b2 Rc1 Rf2 Be1 Rf3 Nb4 Rf4 Ka2 b1B+ Kb2 Rhh8 f7 Rf6 h7 Ra7 Na2 Rha8 h8N Bh7 Rd1 Bde4 Rd8 Bg8 Rc8 Beh7 Kc1 g6 Kb2 N2b4 Kc1 Bbe4 Kb2 Nbc2 Kc1 Bb4 Kb1 Ba5
Q4nnB/q1PB2Rr/3nbq2/n2B4/1P1n2pr/K1N4p/1Bk3NP/1bb1Q3 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a3 f5 Ra2 fxg4 a4 e5 Ra3 e4 Rd3 exd3 axb5 Bc5 Nc3 Bd6 Nb1 Bf8 Kd2 Kf7 c4 Kf6 e4 Ke5 f3 h5 c5 d5 c6 g5 c7 a5 b6 g3 b7 h4 Bh3 g4 Ba3 a4 Kc1 g2 Kb2 d2 Qb3 d1B Qc3 Nd7 b8B Qf6 Qd3 Bh6 Qc2 d3 f4+ Kd4 f5 d2 e5 Rh7 e6 Nf8 e7 Be6 Qc1 Kd3+ Nc3 d4 e8B Bc2 Bh5 d1N+ Ka1 Nf2 Kb2 Ne4 Qe1 Nd6 Be8 Bb1 Nf3 g1Q Bg2 h3 Ba7 Rd8 Bd7 Bc1+ Ka1 Qf2 Nh4 Kc2 Rf1 d3 Bd5 d2 Bb2 d1N Ng2 a3 Bd4 a2 Be5 Ne3 Bd4 Qh6 f6 Nef5 f7 Qf6 Be5 Qa7 Rf4 Qg5 Bh8 Nd4 Rf6 Re8 Rg6 Qf6 Rg7 Rh4 Bc4 Re7 Bd5 Nh7 f8Q Rf7 Qe7 Nf8 Qd8 Re7 Qa8 Rf7 Rg6 Rfh7 Rg7 Bf4 Ba3 Kd3 Kb2 a1N Rf7 Nab3 Re7 Na5 Rg7 Bc2 Ka2 Bc1 Bb2 Bb1+ Ka3 Kc2
4B2b/4n3/2QN1npP/1n1rbqPq/1kNQpn2/2rR4/R1q1P2Q/Q2K2n1 w - - 0 2 legal: proof: f4 c5 g4 a5 b4 axb4 d3 h5 f5 b6 Nc3 h4 Bf4 Bb7 Bg3 hxg3 Nb1 e5 d4 cxd4 Qc1 Bd5 Qd1 Be6 fxe6 Bc5 Bg2 Bd6 Bf1 Bf8 c4 Ke7 h4 Kd6 a4 Kc5 g5 d5 a5 f5 h5 f4 h6 b3 e7 e4 e8Q b5 a6 b4 a7 d3 Qe6 b2 Qd2 g2 Rh4 d4 Qc8+ Nc6 Qe6 f3 Ra3 f2+ Kd1 b3 Qf6 Nce7 Qe1 d2 Qf4 Qe8 Qb8 Nf6 Qe5+ Kb4 c5 Rc8 a8Q Qh5 c6 g6 c7 Bg7 Rh2 Rhd8 Qf5 Rd5 Qf3 Bh8 Nh3 g1B Rh1 Bh2 Qe3 Be5 Nc3 b1N Qg3 b2 Ra2 Na3 Qc6 Nb5 Qh2 b1N Bg2 f1Q Ng1 Qf4 Bh3 Qf5 Kc2 d1N Nf3 Nf2 Nd2 Nd3 Nc4 Nf4 Kd1 d3 Bg4 Rf8 c8Q Nd2 Q8d7 Rc8 Qa7 Nf3 Qd4 d2 Rg1 Nfg8 Rg3 Ng1 Rd3 Nf6 Qf1 Na3 Nb5 Rc7 Nbd6 Nb5 Kc2 Rc8 Qfa1 d1Q+ Kb2 Qf1 Kc2 Qb1+ Kd2 Qb2+ Kd1 Ra8 Bh3 Ra3 Bg4 Rc3 Bh3 Qc8 Bd7 Qf8 Be8 Qf7 Qh3 Qe6 Qg2 Qf5 Qh2 Qc2+
2q5/2NN1p1r/1Q1Br3/1PrKn2q/4p1rr/2k1P2n/P2NRQbN/q1b2R2 w - - 0 1 illegal: No proof kernel
B2nB2R/2k5/2Pn3p/1Q4B1/qrbrB2P/N2Q1Kbq/2p2Pq1/qR3q1n w - - 0 1 illegal: No proof kernel
RB1b3r/6KN/2b3p1/7R/2n2PpP/n1B1nrB1/Bb2QQP1/n3nqqk w - - 0 1 legal: proof: d4 b5 e4 f5 a4 fxe4 axb5 c5 Nd2 cxd4 Ndf3 h6 Ne5 h5 Ng4 hxg4 Kd2 Kf7 f4 Ke6 b4 Kf5 h4 d5 c4 a5 c5 e3+ Kd3 e2 b6 e1N+ Ke2 a4 c6 d3+ Ke3 d2 Kd4 a3 b7 a2 c7 Nf6 b5 Ne4 b6 Bd7 c8Q Nd6 Nf3 Nc6+ Kc3 d4+ Kb2 d3 Kc3 Nb4 Kd4 Nbc2+ Kd5 Nc4 b8B Ra3 b7 Qb6 Ba7 Qg1 Qe2 d1Q b8B d2 Ne5 Rf3 Qc5 N2a3 Qcf2 Bc6+ Kd4 g6 Bc7 Bg7 Bcb8 e6 Rb1 a1N Bb2 Bf6 Bc5 Bd8 Nd7 Qc1 Rh3 d1N Bc3 Nde3 Rb5 Qb1 Nf6 Qc1 B5b4+ e5+ Kc5 e4 Kd4+ Nd5 Nh7 e3 Kc5 Ke4 Rg3 Nd2 Kd6 Ndc4+ Ke6 Qb1 Kf7 Qd3 Qd1 e2 Kg7 Nde3 Rh5 Ne1c2 Rh6 e1B Qde2 Bd2 Rh5 Bc1 Be1 Bb2+ Bbc3 Qd1 Qd2 Qc1 Qfe2 Qb1 Rh3 Qc1 Bg3 Ne1 Qf2 Qb1 Be2 Qd3 Bd1 Qe2 Bb3 Qef1 Qde2 Nb1 Rb5 Qh1 Qg1 Rf2 Qd2 N3c2 Bh2 Bb7 Rh5 Bc6 Rd3 Rf3 Rdd5 Nba3 Bg3 Qh2 Qb6 Qhh1 Qd1 Qh2 Rc5 Ke3 Ba2 Qhh1 Bh2 Kf2 Bg3+ Kg1 Qe2 Qh2 Ra5+ Kh1 Ra8 Qhg1 Qbf2 N2e3
1r1R4/3K1pqN/2q4r/1p2NPP1/nnqr2QQ/N1k1B3/3N1P1b/2qRqb2 w - - 0 1 illegal: No possible last move
1Q1N2kr/Rn2b3/2P2p2/B1b5/b2qbP1p/1P1r4/r1B2bnQ/QK2q1RQ w - - 0 1 legal: proof: e4 b5 h4 d5 h5 dxe4 b3 b4 h6 gxh6 Nf3 h5 Ng1 h4 Nc3 c5 Na4 c4 Nb2 c3 a3 cxb2 axb4 Qc7 b5 Qd8 f4 b1B g4 h5 c4 a5 d4 e5 Kd2 f6 c5 Kf7 d5 e3+ Kc3 h3 Kb2 h4 g5 h2 b6 a4 b7 e4 d6 e2 d7 e1B Bd3 e3 Nf3 e2 Ra2 a3+ Ka1 Be7 Bb2 Na6 b8Q Nh6 g6+ Kg8 g7 Ng4 Bd4 Ne3 Rg1 h1R Bc2 Rh3 Bc3 Ng2 Ne5 Bf2 Nf7 e1Q Ba5 Rd3 c6 Nc5 Qa7 Ba6 Qe2 Qb6 Nd8 Bb5 Qb8 Nb7 Qe4 Ne3 Qh1 Ng2 Qe5 Ba4 Qb2 Kh7 Qh2 Qd4 g8Q+ Kh6 Qgg3 Kh7 Qh1 Ra6 Qgh2 Kg8 Bd1 Rc3 Qc1 Be4 Bc2 Rd3+ Kb1 Ra8 Nf7 Ra7 d8Q+ Bf8 Qd6 Be7 Ra1 Ra8 Qd1 Ra6 Nd8 a2+ Kc1 Ra7 Qb8 Bb5 Bd2 Qd7 Rb1 a1B Bb4 Be5 Ra1 Bed4 Ra2 Bde3+ Kb2 Ra4 Qa1 B3c5 Bc3 Qd4 Ra3 Rc4 Ra7 Rb4 Ka2 Rc4 Ba5 Rcc3 Bd1 Rc2+ Kb1 Re2 Qc8 Ra2 Qb8 Qe2 Bc2 Ba4 Rf1 Qee3 Rg1 Qe1+
Qn6/rp1B2P1/k1nq4/1nb3PQ/1P4p1/r2Q2QR/1nnNb2B/1Rr2qK1 w - - 0 1 illegal: No possible last move
rKQ3rR/Q2N2pb/3r2PQ/Q1r5/nR2r1nB/Pr3p2/4Pb2/k1N1q2r w - - 0 1 illegal: No possible last move
n2rR1Nq/RB2P1K1/4Pp2/Q1p4Q/1qPNrb1q/2r1R1nb/b2r3k/1R6 w - - 0 1 illegal: No possible last move
4n3/K1kbNqnb/Rp1p1BQ1/1Pr2n2/2BQP1b1/r3N2P/5Bq1/br5B w - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 g4 e5 f4 exf4 b5 h5 gxh5 Qg5 Ra3 Qf6 Rb3 Qd8 Rb4 axb4 Kf2 f5 c4 g5 c5 d3 c6 d6 h6 g4 c7 Kd7 a5 d2 a6 b6 h3 f3 Ke3 f4+ Kd4 b3 h7 b2 a7 f2 e3 f3 Qc2 d1B Kd5 g3 Qb3 g2 Na3 b1R Bb2 Qf6 Qc4 Bg7 Qd4 Nh6 Nc4 Na6 Ne2 g1Q Nf4 Qg2 Ng6 Nf5 Ne7 Qfg6 Bd3 f1N Bc1 Rd8 h8B N1g3 Be2 Be5 Bf6 Ng7 Bd2 N3f5 Be1 Rh8 Bf2 Bc2 Rd1 Rh5 Rd2 Bd1 Ra2 Rg5 Na3 Qe8 Nc2 Qf8 Bc4 Rh5 Qe4 Ba1 Ra3 Qf7+ Qe6+ Ke8 Kc6 Bd7+ Kb7 Rg5 c8B Nc7 Ra6 Kd8 Qe5 Nce8 Qd4 Be6 Bd7 Rh5 Bc6 Bd7 Be1 f2 Be4 f1B Bf2 Qg4 Bh1 Qg2+ e4 Bg4 Ne3 Rg5 Ra2 Bfe2 Ka6 Kc7 Ra5 Bh5 Ra2 Bg6 Ra4 Rc8 a8Q Rg3 Ka7 Bg4 Ra6 Bh7 Qc6+ Kd8 Qb7 Rc5 Qbd5 Kc7 Qe6 Qf8 Qf7 Rf3 Qg6 Qf7 Nc2 Rfb3 Ne3 Ra3
1nb1NQn1/2BNr1Q1/N4Kn1/1qqqRpP1/1P5r/b2R1P2/2q1p3/3rk1N1 w - - 0 1 legal: proof: b4 d5 e4 dxe4 h4 g5 a3 gxh4 c3 b5 Bc4 c6 a4 c5 Bb3 c4 axb5 cxb3 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kc4 d4 e5+ Kh5 f5 g4 a5 g5 b2 d5 h3 f3 e3 b6 e2 b7 e1N d6 e4 d7 e3 Ne2 h2 Ng1 a4 Bd2 Kd3 c4 e2 c5 a3 c6 a2 c7 Ra7 Qa4 Ng2 Nc3 b1Q Qb3 Nh6 Qa4 Nh4 Qb3 Qc2 Rf1 a1Q Rd1 Qa5 Qf7 Qb5 Na4 Ng6 Nb6 Bg7 Bf4+ Kc3 Bg3 Be5 Ra1 Kd2 Qg7 Bb2 Ra5 Ba3 Be5 Qf8 d8Q+ Ke1 Nd7 Qfc5 Qdf6 Rd8 Qff8 Qd5 Nf6 Qdc5 Ne8 Rd1 Bf4 Ra6 Be5 Re6 Bf4 Re7 Bd6 Bd7 c8N Be6 Nb6 Bc8 Nh3+ Kd2 Re1 h1Q Nd7 Qh2 Rg1 Qhe5 Bc7 Qed5 Rg4 Ke1 Ng1 Bb2 Re4 Ba3 Rd4 Qcb6 Bd6 Qdc6 Bc7 Q5a6 Qgf6 Nh8 Re4 Ng8 Ne5 Nd7 Rc5 Qab5 Rcc4 Qcd5 b8N Q6c5 Na6 Nb8 Kh4 h5 Nd7 Nh6 Kg3 h4+ Kf4 h3 Rcd4 h2 Q6g7 h1R Re6 Qdb7 Rd5 Qa8 Ke5 Ng6+ Kf6 Rh4 Rd3 Qad5 Re5 Ng8+
1RN1Q1q1/2k1r3/1p1R1nQ1/1Pp1Q1rb/5brr/q1P2Pn1/3Q2N1/b1q3KB w - - 0 2 legal: proof: e4 a5 b4 g5 h4 gxh4 b5 f5 Ba3 e6 Bb4 axb4 d4 e5 dxe5 fxe4 g4 c5 a4 d5 f3 Kd7 Kf2 h5 g5 d4 e6+ Kc7 e7 d3 e8Q d2 g6 h3 a5 b3 g7 h2 a6 e3+ Kg2 h4 Qc1 d1Q Nc3 b2 Qf7+ Ne7 g8Q b1Q Qb3 b6 Qgf7 e2 Qh7 e1B Qd2 Bg4 Be2 Qb2 Bf1 Qdc1 Qg6 Qe8 Ra5 Qa3 Qd1 Bg7 Nge2 Qg8 Ne4 Nd7 Qb2 Re8 Nf4 Bd2 Nd6 h3+ Kf2 Rh5 Bg2 Rg5 a7 Kd8 a8Q+ Kc7 Re1 h1R Re6 h2 Qe2 Bgc3 Qe5 Nf5 Rf6 Re6 Qae8 Rg1 Ra8 h1R Rb8 Rh4 Bh1 Bh5 Qb4 R1g4 Ng2 Bf4 Nc8+ Rd6 Qbd4 Ba1 c3 Ng3 Re6 Nf6 Qd2 Nf1 Kg1 Ng3+ Qee1 Rd7 Rd6 Qcb2 Q1e3 Re7 Qe5 Qc1+
N1rb2q1/n1N1kb2/pp3qnq/1Q3P1r/PP1R4/3r4/1rKQb2N/BN1R4 w - - 0 2 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 Bd3 gxh4 Bc2 d5 cxd5 c4 Bb3 cxb3 f4 h5 d4 e5 Kd2 h3 g4 b6 a4 h4 g5 e3+ Kc3 e2 d6 e1Q+ Kd3 e4+ Kc4 a6 d7+ Ke7 d5 e3 Kd3 b2 g6 e2 g7 h2 f5 h3 Qb3 Qc3+ Ke4 Rh5 Qc4 Nc6 Nf3 Qf6 Kd3 e1R Kc2 Na7 Qb5 Re3 Rd1 h1Q Rd4 Rd3 Nh2 Bb7 Bd2 Rc8+ Bc3 Qe8 d8N Qef7 Na3 b1R Ne6 Rb3 Nc7 Bc6 Rc1 Be8 Nb1 Q7e6 Rg1 Bf7 Rd1 Qg1 Na8 Qee3 Qc4 Qeh6 Ba1 Qg3 Nf3 h2 d6+ Ke8 d7+ Ke7 d8N h1B Nh2 Bf3 Qc3 Be2 Ne6 Ke8 Rd2 Qd8 Kc1 Be7 Kc2 Qdd6 Rd1 Bd8 Nec7+ Kd7 Nd5 Ne7 Ndc7 Qgg6 Qe1 Qgh7 Qd2 Ng6 Rg1 Ke7 Rd1 Bd5 g8Q Qf6 Kc1 Bc4 Qd5 Qg8 Qb5 Bf7 Kc2 Rb2+
k1n4n/rb5p/1Q3RQ1/1r3N1q/1bP3qP/n1rNPbQ1/B1p3K1/B1r1Q3 w - - 0 1 illegal: No possible last move, all moves rejected
r1N1k1q1/3pqRrR/bn4PQ/1pbR2qb/3P1P2/4n3/r1rR1N2/B2Q1K2 w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b7 Bh6 b5 Bg7 b6 Bf8 Bb5 cxb5 g4 a5 c4 h5 d4 e5 f4 a4 g5 e3 g6 e4 c5 e2 c6 a3 c7 h3 Nf3 a2 Be3 h2 Nbd2 h4 Ng5 h3 Nh7 Bc5 Rf1 h1Q Nb1 h2 Bc1 Nc6 b8Q Ba6 c8R Na5 b7 Qg2 Nc3 h1B Rf2 Nh6 Ng5 Nf5 Nf7 Rg8 Bb2 Nc4 Rb1 Qg4 Ba1 Nb6 Rc1 Bf3 Nd6+ Ke7 Rc7 Rg7 Nc8+ Ke8 Rh2 Qh5 Rc2 Ne3 Rd2 Qhg5 Rh7 Bh5 Rc6 Qde7 Rd6 Qe6 Rd5 Qg8 Kf2 e1R Qd6 Rg1 b8R Rg2+ Ke1 Nf5 Qf6 e3 Ne4 e2 Nf2 Ne3 Qf5 Rh2 Qh3 Rg2 Bc3 a1R Qh4 Ra2 Ba1 Nbc4 Rb6 Rh2 Rf6 Nb6 Rf7 Bf3 Qh6 Bh5 Rb2 Rg2 Kd2 e1Q+ Kd3 Qb4 Rd2 Ng4 Ke2 Qa3 Qe1 Qe3+ Kf1 Qee7 Qd1 Rc2 Nh3 Re2 Nf2 Ra2 Rd3 Rec2 Rd2 Ne3+
Q3BK1n/qRPb1Np1/r1p4Q/1Q2Rb1N/QP1k2q1/2b3P1/nnq1n3/2r5 w - - 0 1 illegal: No proof kernel
1q6/1p1R1nKq/3P1pQ1/bPB1Qb1Q/2r5/4rq1N/3rBPb1/1Qn1Nr1k w - - 0 2 illegal: No possible last move
2R5/n2bQq1p/3B4/3KPNnR/B4B2/2b1b3/rPrpr2P/r1q1QnkB w - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nh3 cxd4 Nd2 e5 Nb3 d3 Nd4 exd4 Ng1 Bd6 Bh6 Be7 Bc1 Bf8 Kd2 Ke7 e4 Kf6 f4 d5 c4 g5 e5+ Kf5 c5 Ke4 f5 a5 c6 g3 b6 g4 f6 g2 c7 a4 f7 g3 b7 a3 Rb1 a2 Qb3 a1R Qd1 Qe7 Ne2 Kf3 Rg1 Kf2 Qb3 Nf6 Qd1 R8a2 Qc2 Ne4+ Kd1 d2 Rh1 g1Q Qc6 g2 Kc2 d1N Kd3 Ne3 Qb6 Nc6 b8B Bd7 c8B Na7 Qa5 Ng5 Bb7 Qf6 Qd2 Bb4 f8Q Qf7 Qe7 Rc8 Bd6 Bc3 Qd1 Rc4 Ng3 Rc7 Be2 Nf1 Nf5 Rc4 Bf4 Rc6 Kc2 d3+ Kb3 d2 Rc1 d4+ Bc4 d3 Qe1+ Kf3 Be6 d1R Rc2 Qe3 Rg1 Qc1 Ba8 d2 Bc4 Qh5 Bb5 Qg6 Ba4 Qf6 Rh1 g1B Bb7 Bc5 Kc4 Be3+ Kd5 Rc8 Rg1 Qf7+ Qe6 Rc7 Rg4 Rc4 Rh4 Kg2 Rh5 Kg1 Ba8 Qe8 Qe7 Rc6 Qh4 Re1 Bb7 Re2 Qe1 Bb4 Rc5 Bc3 Rc4 Ra6 Rc8 Rc6 Ba8 Qf7+ Qe6 Qg6 Qe7 Ba5 Bb7 Rc2 Bbc6 Bc3 Kc4 Bf2 Bh1 Be3 Kd5 Qf7+
r3brn1/1bN2RbQ/PQ1B1bpQ/2R2p2/3q1Pb1/4Qn2/2P1q3/k1b2KN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 c5 Bd3 d5 Bc4 dxe4 Bb3 c4 Kf1 cxb3 Ke2 Na6 Ke1 Nb8 h4 Kd7 a4 Kd6 f4 Kd5 d4 Kc4 h6 e5 h5 b5 d5 b2 h7 g6 a5 b3 d6 e3 h6 e2 d7 b4 a6 e4 Na3+ Kc3 Be3 b1B Bc1 b2 Nh3 b3 Rg1 Ba2 Qd5 b1Q Rh1 b2 Qd6 Be6 Qd5 Bg4 Ra2 f5 Nc4 Nc6 Nd6 Nd4 Kf2 e1B+ Kg1 e3 Qf3 Bh4 Ra5 Bb7 Kf1 Bf6 Ne8 B8g7 Nc7 Qa1 Rh2 b1B Ng1 Qe7 d8Q Ba2 Rc5+ Bc4+ Qe2 Nf3 Rh3 Qa4 Ba3 Qe6 Bb4+ Kb2 Qd6 Bb5 Qb6 Be8 Rh5 Ne7 Qe1 Rg8 h8Q Rf8 h7 Ng8 Rh2 Qe4 Rd2 Qe5 Rd7 Qe7 Qg3 Ka1 Ba3 Qee4 Rf7 Qad4 Qf2 Bh6 Qg7 Qee5 h8Q e2+ Kg2 e1B Qe3 Bd2 Qhh7 Bc1 Kf1 Bhg5 Qgh6 Bg7 Rc3 Qee4 Bd6 B5f6 Rc5 Qed3+ Ne2 Qd2 Ng1 Qe2+
rRqQR1B1/1p2rr2/p5q1/P5B1/1B1bk2B/nQ3rPb/4rn1P/1K3N1r w - - 0 1 legal: proof: f4 d5 e4 g5 exd5 gxf4 b4 c5 g3 cxb4 Na3 h5 Nc4 h4 Ne3 h3 Ng2 hxg2 c4 Kd7 d4 Kd6 Kd2 f5 Kc2 e5 a4 b3+ Kb2 f3 a5 a6 Qd2 e4 Ne2 g1R Ra3 f4 Qc3 e3 Kb1 f2 Bd2 b2 Nc1 e2 Qb3 e1R Ra2 Qc7 Bb4+ Qc5 Bh3 f1R Be6 Nf6 Bg8 Rf3 Ra3 Rg2 Rf1 Re7 Re1 Rf7 Re8 Bh3 Ra2 Nc6 Rb8 Re2 Ra4 Ke7 d6+ Ke6 d5+ Ke5 d7 Bg7 d8B Nd4 d6 Nc2 d7 Qc8 c5 Rh7 c6 Ng4 c7 Nf2 Bh4 Ke4 d8B Bd4 Bdg5 Re7 Ra2 Rhf7 Ra1 Qe8 c8Q Na3+ Ka2 Qc6 Qd8 Qc8 Rb1 Rfe3 Ra1 f3 Rb1 Nd3 Ra1 f2 Rb1 f1R Ra1 Nc2 Kb1 Nf2 Ra3 Rc3 Qa4 Ke5 Ka2 Rcf3 Nb3 Re8 Nd2 Rh1 Nf1 Kf5 Rc3 Na3 Rc7 R8e6 Re7 Ke5 Re8 Ree7 Qc2 R3f5 Kb3 b1Q+ Qb2 Qe4 Ka2 Rf3 Ka1 Qg6 Qc3 Nc2+ Kb1 Ke4 Qb3 Na3+
bk3r2/2N3K1/p3Q3/1r1r1P2/prbb2Q1/PPn2N2/2bN3b/1qRnN1RB w - - 0 1 legal: proof: h4 f5 e4 fxe4 c4 d5 cxd5 g5 b3 gxh4 Ba3 b6 Bb4 Bh3 Bc3 Bc8 Ba5 bxa5 Ke2 Kd7 Ke3 e5 g4 c5 d4 Kc7 f4 h5 a3 c4 f5 a4 g5 a6 g6 c3 g7 h3 Ne2 h4 Rh2 c2 Ng1 c1B+ Qd2 Bc5 Bb5 Nf6 g8Q Ng4+ Ke2 e3 Kf3 e2 Ke4 e1R+ Ne2 Nf2+ Ke3 e4 Kf4 e3 Ke5 Nc6+ Kf4 Rd1 Qe1 Rb8 Qeg1 Ne7 Ke5 Be6 Rh1 h2 Kf6 h3 Nf4 e2 Bc6 e1R Kg7 Re4 Qg4 Rb5 d6+ Kb8 d5 Reb4 Ng2 Bf4 Rg1 h1B d7 h2 d6 Bc4 Ne1 Be4 Bd5 Bed3 Bh1 Nd5 Qf7 Qe8 d8N Qe4 d7 Rf8 Ne6 Nc3 d8N Rd2 Qfg6 Nfd1 Nd4 Bg3 N8e6 Bb6 Bf3 h1B Nc7 Bh2 Qd6 Qf4 Qe5 Bc2 Qe6 Rd3 Bb7 Qc1 Nd2 Qb2 Rc1 Qb1 Bc8 Ba8 Bb7 Ba7 Bh1 Bc5 N4f3 Rd5 Nf1 Bf2 N1d2 Bd4+
Q3RQ1n/1q2n1N1/3Kp1B1/P5Q1/N2pbb2/1bB5/1r1PP1r1/r1Qbrkr1 w - - 0 2 legal: proof: b4 h5 f4 g5 a4 a5 g4 axb4 c3 bxc3 Ra3 Nh6 Rb3 Na6 Rb4 Nb8 fxg5 Rh7 g6 Rh8 g5 Ng8 Rg4 hxg4 Kf2 b5 Ke3 c5 Ke4 f5+ Ke5 d5 h4 Kd7 g7 b4 g6 f4 h5 d4 a5 f3 h6 f2 h7 c2 Qe1 c4 Na3 g3 Nb5 b3 Nh3 c3 Kd5 g2 Qd1 g1R Nc7 b2 Bg2 f1B Ng5 b1B Qe1 Nc6 Ne8 Nh6 g8Q Qb6 g7 Rb8 Qd1 Nf7 Nc7 Qb7 Bf3 Bg2 Ba3 c1R Rh4 c2 Qf1 Re1 Na8 c1R Nc7 Bc2 Nce6 Bd1 Be4 Ra1 Kc5 Bf3 Bf5 Be4 Bb2 Rg2 Kc4 Kd6 Bg6 Ke5 Nc5 Rg1 Na4 Be6+ Kc5 Beb3 Rh3 Rg2 Qh1 Kf4 Bc3 Rgg1 Rh2 Kg3 Ne6 Rg2 Rh5 Kf2 Rd5 Rgg1 Rd8 Kf1 Re8 Nb4 Nf4 Nd5 Nh5 e6+ Re7 Nd6 Re8 Be7 Qf7+ Bf6 g8Q Ne7 Qgf8 Rg8 Q7g7 Nf7 h8Q Bg5 Qf6+ Bf4 Qg5 Be3 Ng7 Bf5 Qc6 Be4 Nf5 Rg7 Qhg8 Nh8 Kd6 Rh7 Qc5 Rh2 Qa3 Rhg2 Qc1 Rc8 Bb2 Rc2 Bc3 Rca2 Ng7+ Bf2 Qff5 Rb2 Qc5 Be3 Qc6 Qc8 Qa8 Qb7 Qf8+ Bf4+
3n3B/1n1p3Q/5nnK/q1R3R1/2R1Q2r/rpbPr2P/1R1Nb1rP/N2k2r1 w - - 0 1 legal: proof: f4 e5 b4 exf4 b5 c5 b6 h5 Kf2 h4 Ke1 h3 gxh3 c4 Bg2 axb6 Bf3 b5 Bc6 b4 Ba4 Bc5 Bb3 cxb3 Na3 Bd6 Nb1 Bf8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 a4 g5 a5 b5 a6 b2 c5 b3 a7 b4 c6 f3 c7 f5+ Kg3 f2 e3 Kd3 e4 f1R e5 f4+ Kg4 f3 e6 f2 e7 Re1 e8Q f1R Nc3 b1N Ra6 b2 Nb5 b3 Qf3+ Kc2 Ne2 Nc6 Nec3 Re3 Kf5 g4 Kg6 g3 Ra4 g2 Qf2 g1R+ Qg3 Nf6 Ne4 Rf2 Nd4+ Kd1 Nc2 Na3 Na1 b1N Rc4 Nc3 Bb2 Ba6 c8R Qa5 Qe5 Nd8 R8c5 Rh4 d3 Nab5 Qf5 Rg2 Nd2 Bb7 Qgg4+ Ne2 Qh5 Bc6 Qh7 Nd6 Rg5 N6b7 Qe4 Bg7 Rc5 Rc8 a8R Rb8 Ra6 Ra8 Bc3 Bd5 Rac6 Be6 Rc4 Bg4 R6c5 Bh8 Bb2 Bh5+ Kh6 Nf4 Be5 Ng6 Bd4 Qb4 Bc3 Ra3 Bb2 Rge1 Rf1 Qa5 Rff5 Reg1 Rf2 Ne8 Re2 Bc3 Rf2 Bb4 Bh8 Nf6 Nf3 Be1 Rb2 Bc3 Nd2 Be2+
3QrK1R/2r1R1r1/1pq4P/1PkpQ1n1/1b2Q3/3PN2B/n1bQrB1b/4n2b w - - 1 2 illegal: No possible last move
6bN/K1Pb3n/1N1p1p1b/3P3P/1R2QBnr/rb1q4/k1nQ2N1/1Nn3Rq w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 hxg4 Kf2 exf4 Ke1 c6 b4 Qb6 Bg2 Qc7 b6 Ne7 b5 Qe5 b7 Qf6 b6 Ng8 Bd5 Qg5 Bc4 Qd8 Bb5 cxb5 Kf2 Ke7 h4 Ke6 c4 a5 d4 g5 e4 f6 e5 f3 Ke3 a4 c5 Kd5 c6 Kc4 c7 b4 e6 f2 e7 f1B e8Q b3 Bd2 g3 Bc3 b2 Ba5 a3 Rh3 g4 Nf3 g2 Be1 g1Q+ Ke4 g3 Ba5 g2 Qe7 a2 Qd2 Kb3 Kd5 Nh6 Kc5 Qh1 Ne1+ Bd3 Bb4 g1N Ng2 Ne2 Ba3 Bg7 Qe4 Nc1 Rg3 Ra7 Rg4 Bc2 Kb5 Bf8 Bd6 Ra3 Rf4 Ng4 d5 Qe7 Be5 Bh6 Bd6 Qh7 h5 Re8 Kc5 Re6 Be5 d6+ Kb5 Nd7 b8N Nf8 b7 Re8 Kb6 Bd7 Nc6 Qg6 b8N Nh7 Nd8 Re7 Qee1 Qd3 Qe4 Re6 Nf7 Re7 Nc3 b1B Nh8 Bd1 Kb7 Bbc2 Nb1 Re8 Nc6 Rea8 Ne7 R8a4 Nc8 Rd4 Qde1 Kb2 Nb6 Bb3 Na8 Bdc2 Qd2 Qf3 Qed3 Ne2 Nh4 Nf8 Kb8 Nh2 Nc3 Qe3 Rg1 a1N Qh7 Nc1 Nb1 Ka2 Ng2 Qe2 Rf5 Rh4 Nb6 Ng4 Rf4 Qf1 Rb4 Qb5 Qc3 Bd3 Qe7 Nc2 Bf4 Bh7 Qe4 Qd3 Qd2 Bg8 Kb7 Nh7 Kb8 Bda4 Ka7 Bd7+
Qbk1NQ2/3Np2n/1p5B/1PP4r/2bKBqn1/1P1NN1Rb/2n3r1/1b4qn w - - 0 1 illegal: No proof kernel
2nBK3/r4P2/4n2k/qp4pN/bP1rP2q/1Nr5/NR2Bb1Q/1q1qrQN1 w - - 0 1 illegal: No proof kernel
1b1B1Nr1/1k5K/1P6/nQ2nnP1/2b1npp1/3QrRN1/N1rR1P1q/2q2Nr1 w - - 0 1 illegal: No proof kernel
1Q4N1/1NQP4/KQp5/2Rpr1B1/Rb4Pn/1rn3b1/bk1Pr1q1/b4Qqr w - - 0 1 illegal: No proof kernel
rr2nb2/p1R1bq2/1B1p1Q1N/B3P1nb/2nK4/P2B1q2/N1b1Q1Pk/2B4n w - - 0 1 legal: proof: c4 e5 e4 g5 d4 b5 b4 bxc4 h4 Be7 hxg5 Bf8 Nd2 exd4 e5 f5 Rb1 Nf6 Rb3 Ng8 Re3 Nh6 Re2 Ng8 Re4 fxe4 Ke2 Kf7 f4 Ke6 b5 Kf5 b6 Kg4 b7 Kg3 a3 h5 f5 c5 g6 c3 g7 e3 Kd3 e2 f6 e1N+ Ke4 h4 f7 d3 Be2 c4 Bg4 h3 Qa4 h2 Kd4 d6 Kd5 c2 Bf5 c3 Bg6 Nf3 Nb3 d2 Nd4 d1B Qc4 Qd7 Bd3 Nc6 b8B Na5 Bc7 Ng5 Bb6 Bh5 Qb5 Be7 f8B Nc4 Bd2 c1B Nge2+ Kf2 Rg1 c2 Bda5 h1N Nc3 Kg3 Na2 Kh2 Nf5 Nf6+ Kd4 Ne8 g8Q Qc6 Qf7 Qf3 Nh6 Bf5 Qg7 Bd2 Qf6 c1Q Qb2 Qcf1 Qc2 Bc1 Qe2 Be4 Qg6 Qf7 Qf6 Qf3 Bg7 Bd2 Rc1 Bf8 Nf5 Be1 Bh6 Bh4 Rc3 Nh7 Bc1 Ng5 Bb1 Bc2 Nh6 Bb3 Bd3 Bc2 Qg7 Nh7 Qg6 Bhe7 Qg7 Ng5 Qf6 Ne3 Rc6 Nc4 Rc7 Bg7 Qg6 Nf6 Qd1 Rhb8 Qe2 Ne8 Qf6 Bgf8
Q2q2B1/r6N/nBr1n1Bn/Nrp1rQ2/k1P4p/BRP2r1P/5K2/1nn2b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 a4 g6 Ra2 Bg7 c4 Bc3 dxc3 fxe4 f5 g5 Rf2 Kf7 Rf3 Ke8 Rf4 gxf4 g4 c5 g5 b5 a5 h5 g6 d5 a6 Kd7 f6 Kc6 g7 e5 a7 h4 f7 d4 f8B d3 Qc2 e3 Qa2 e2 Qa1 d2+ Kf2 d1N+ Ke1 b3 Be3 e4 Bh3 f3 Nd2 b2 Qb1 b4 Bf5 b3 Bd7+ Kb6 Nh3 Ka5 Be6 Nf2 Ng5 Ka4 Bg4 Nh6 g8B Na6 Bg7 Nh3 B4e6 Nf4 Qd1 b1R Bh3 Ne6 Qc1 b2 Kf2 e1N Bf5 Rh7 Be5 Rc7 Bg3 Rc6 Nb3 Bd7 Bg6 Nd3+ Kg1 Bc8 Qf1 Nc1 Na5 f2+ Kg2 Bd7 Nh7 Bc8 Qd3 f1R Bc7 Rf3 Bb6 Bd7 Bg5 e3 Qf5 e2 h3 e1R Rg1 Re5 Bd2 Bc8 Rd1 Bb7 Bg5 Rb8 a8Q Ra1 Rd2 b1N Rb2 Rd6 Rb3 Bc6 Ba7 Rb5 Bb6 Be4 Be3 Bd3 Bg5 Rc6 Kg1 Na2 Bc1 Bf1 Ba3 Nc1 Qb7 Ra2 Qa8 Rd2 Rb2 Rd7 Rb3 Rg3+ Kf2 Ra7 Qh5 Rd3 Qf5 Rf3+
1b6/b2K1pr1/6n1/5Qqn/nPN1qp1k/2BR1P1P/B1b1R1Bp/Brr4Q w - - 0 1 illegal: No proof kernel
3BK3/q1pb1N2/4p1n1/1r2PQnB/P2r3b/r1p1knq1/P2RB1B1/4NQ1b w - - 0 1 illegal: No proof kernel
2KB2nR/5n2/P1qPR2b/B4n2/4Q2B/2qpp2b/BrpP1q1r/Q2r1kN1 w - - 0 1 illegal: No possible last move, all moves rejected
2Nr1b1b/2qQ1p1n/1PN1p3/1B1R1Q2/3N1NKp/n3B1q1/1k1b1PrP/2n1q3 w - - 0 2 illegal: No possible last move
2B2KbR/P2qn3/1b4R1/pnp3pB/r4b1r/2BNQ1Pk/q1Pq4/3B1nQ1 w - - 0 2 illegal: No proof kernel
n2r2Q1/pR1B1Nnr/1P1q1p2/r4Qb1/bk2NPn1/1q2RK2/4p2P/1N2N2q w - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 h5 Ba3 hxg4 axb5 dxe4 b6 Qd5 b5 Qd8 Bb4 cxb4 Ke2 Kd7 c4 Kd6 d4 e5 f4 g5 d5 Kc5 d6 g3 d7 g4 b7 g2 b6 b3 Nf3 g1R Ne1 b2 Qd4+ Kb4 Ra5 g3 Qd3 e3 c5 g2 c6 e4 c7 f6 Ra6 Ne7 Ra2 Rh7 Qd5 Bh6 Qd3 Nf5 Qc2 Bg5 Ra1 Na6 b8Q Ng7 Nd2 b1Q Ra5 Qb3 Nb1 Qe7 d8N Qd6 Nf3 Bd7 c8N Nc7 Nf7 Be8 Rd5 Ba4 Qb7 Rb8 Ne1 Na8 Re5 Qa3 Qd5 Qb3 Ne7 Re8 Nf5 Rf8 Re7 Rd8 Kd1 e2+ Kd2 Rh6 Ng3 Rh7 Rb7 e3+ Kc1 Rdh8 Qcf5 Rb8 Ne4 Rd8 Nf3 e1N Bb5 Rf1 Bd7 Nc2+ Ne1 g1Q Kd1 Rf3 Ke2 Rfh3 Qg4 R3h5 Kf3 e2+ Qd3 Qgc5 Rg1 Ne3 Rg3 Qcd4 Qe6 Ng4 Qe8 Qg1 Qf8 Bh4 Qg8 Ra5 Rh3 Bg5 Rg3 Qc2 Qd5 Qd4 Qf5 Qb3+ Kg2 Qdd1 Re3 Qc1 Kf3 Qcd1 Ng2 Qg1 Ne1 Qh1+
4n2K/nN2r2b/kBpN1q2/2Q1QP2/p1PR1b2/4Qp1b/3Q2rP/2n1Rq1q w - - 0 1 illegal: No proof kernel
3k1nr1/1R6/p1Pn2R1/1bB4q/PQ3b1R/2nQ1pr1/KbqNpPB1/3Rr3 w - - 1 2 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 h4 gxh4 Na3 dxe4 Rh3 b4 Rh1 bxa3 d4 f5 Kd2 h5 Kc3 e5 Kb3 a6 g4 e3 c4 a2 g5 e2 g6 e1R g7 h3 d5 h2 c6 e4 c5 e3 d6 f4 c7 e2 Qd2 h4 Qe3+ Ne7 g8Q h3 Qeg3 Nd5 Be3 Bd7 c8R Nc3 Ka3 Bb5 c6 Nd7 Qb3 Bh6 Qb1 Nf8 Qg4 Rg8 Qh4 Rg3 Rb8 Qc8 Rb7 Qf5 Qd1 Qc2 Bc5 Bg5 d7+ Kd8 Rb1 a1B Qd3 Rb8 Rd1 Bb2+ Kb4 Ra8 Nf3 Rc8 Rg1 h1Q Bg2 h2 Nd2 f3 Qhe4 Bf4 Qed4 Ne4 Q4c3 Nd6 Qcd4 Ba1 Ka3 Bb2+ Ka2 Rb8 Rf1 Qg1 Q4c4 h1N Qb4 Qh2 Rg1 Qh5 Qdc3 Rh3 Qd3 Ng3 Rh1 Nge4 Rh2 Rg3 Rh4 Ke7 d8R+ Nd7 Rh8 Rbg8 Rh7+ Kd8 Rg7 Nf8 Rg6 Nc3+
2n4q/P1r1Q2R/r1rb1Np1/4K1Q1/pP3p1q/1bR3P1/2nNN1nN/qB5k w - - 0 1 illegal: No proof kernel
5B1n/qrP4B/1B3p1R/1n1brQ2/Pb3R2/1q1r1PQ1/3pb1p1/NkBn3K w - - 0 1 illegal: No possible last move, all moves rejected
2r1Qb1q/p1k2N2/P3P1B1/1b1rpNb1/1N5p/RKn4P/N4bQ1/rB3bn1 w - - 0 2 legal: proof: b4 f5 d4 c5 bxc5 d6 g4 fxg4 e4 Nh6 a4 Qc7 e5 Qd8 d5 Ng8 Bb2 Nc6 e6 Nb8 Be5 dxe5 d6 Qb6 d7+ Kd8 Ra3 Qc7 Rd3 Qb6 Rd6 exd6 Nd2 Ke7 Nb1 Qd8 Kd2 g5 Kc3 b5 f4 h5 a5 d5 h3 h4 f5 d4+ Kb4 d3 c4 d2 c6 Kd6 a6 g3 c7 g2 f6 g4 f7 g3 Na3 Nf6 Kb3 b4 Qf3 d1B+ Nc2 Ne4 Qe2 Nc3 c5+ Kc6 Qg4 Be2 Qg7 Bb7 c8B Kc7 c6 Bb5 Ne2 g1B Nc1 g2 Na2 Bf2 Bd3 g1B Bg6 Bh2 Rb1 Bf4 Ra1 Bg5 Qg8 Qf6 d8N Rh7 Bd7 Qh8 Be8 Bf1 Bd3 Bc8 Qg6 Bd7 Qe4 Rg7 Qg2 Rg8 Kb2 b3 Ncb4 Rg7 Bb1 Rh7 Ka3 b2 Kb3 Kd6 c7 Bdb5 c8N+ Kc7 Bc2 Nc6 Ne7 Rc8 Bb1 Rg7 Nf5 Nd4+ Ka3 Nde2 Kb3 B8c5 f8Q Ng1 Bh5 Rd7 Nf7 Rd5 Qe8 Bf8 Bg6 Kb6 Nc1 Kc7 Ra3 Rd1 Nca2 Rd5 Bd3 b1R+ Kc2 Rd1 Kb3 Ra1 Be4 Qg8 Bb1 Qh8
K1nr1N1b/R1npr1Bp/b1p2b2/1Q2Pk2/3P2br/1N1N3P/4N1bR/Q5q1 w - - 0 2 legal: proof: f4 b5 c4 g5 cxb5 gxf4 a4 e5 a5 e4 e3 Na6 Be2 Nb4 Bf3 exf3 a6 Nc2+ Kf2 Bxa6 Kf1 Bc8 Kf2 Ke7 g4 Kf6 b4 a5 e4 a4 b6 a3 g5+ Ke5 g6 f5 b5 c6 h3 a2 g7 Ne3 b7 Ne7 g8N Ra4 b8N N3d5 b6 Nc7 b7 Bg7 Ne2 Bf6 Na6 Qe8 b8Q Qg6 Nb4 Ba6 d3 Nc8 Ne7 Rd8 Nd2 Bh8 Qf1 Kf6 Qb5 Qg1+ Ke1 Kg5 Nb3 f2+ Kd2 f3 Ke3 Kf6 Kd4 f4 Qe1 f1B+ Kc4 f2 Kc5 f3 Bb2+ Ke6 Ng6 Bg2 Rh2 f1B+ Bd4 f2 Bg7 Bf3 Qc1 B1g2 Nf8+ Ke7 Qb2 Bg4 Qc3 f1R+ Qd4 Nd6 Kb6 Rf7 Ka7 Nc8+ Kb8 Ne6 Qb2 Kd6 Ka8 Re7 Rb1 a1B Qa2 Bd4 Ra1 Bf6 Qb1 Ree8 e5+ Ke7 Ra2 Kf7 Qa1 Re7 Nd5 Rf4 d4 Re4 Nb4 Nc7+ Kb8 Rf4 Nd3 Re4 Ng6 Ke6 Nf8+ Kf5 Ra3 Bb7 Ra8 Ba6 Ra7 Bh5 Qba4 Rh4 Qb5 Ne8 Ka8 Bhf3 Rc7 Bg4 Ra7 Nc7+
3Nbrrb/B3r2p/2BN1pQ1/rnR1p3/4P2B/1b2Pq2/nnK1BP1k/2Q5 w - - 1 2 legal: proof: b4 b5 h4 g5 a4 gxh4 Ra3 c6 Rf3 Qb6 e4 Qe3+ dxe3 bxa4 Rf5 Nh6 Rd5 Ng8 b5 c5 Rd4 Bb7 Rc4 Bc8 Rb4 cxb4 Kd2 a5 g4 d5 c4 e5 c5 Ke7 g5 a3 c6 a2 b6 a1R b7 h3 c7 b3 g6 Kf6 g7 Kg5 Qf3 Kh4 Ba6 h2 Ba3 a4 Kc3 f6 Kd2 d4 Bc1 d3 Kd1 d2 Bb5 a3 Qf5 a2 Qe6 b2 Nc3 b1B Be2 Nc6 b8B Nge7 g8Q Nf5 Qe7 Bd7 c8B Nd6 Ba7 Nb5 Nh3 Nb4 Nf4 Be8 Bd7 Bg7 Ne6 Kh3 Ba3 Rc8 Rf1 h1Q Bc6 Kh2 Qc7 Qf3 Nd8 Ra8 Qgf7 Rg8 Qg6 Bh8 Re1 Rb8 Rg1 Rb7 Qc8 Re7 Re1 Nd4 Nb5 Rf8 Nd6 Nb5 Qe6 Rg8 Qc4 Bd3+ Qc1 Bc4 Rg1 Rb1 Rf1 a1R Re1 Na2 Kc2 d1N B3c5 Nb2 Rd1 Qh3 Rd5 Qh5 Ba3 Qh3 Rc5 Qf3 Kd2 Reg7 N6f7 Nd6 Rd5 Nb4 Bc5 Na4 Ba7 Bd7 Ne6 Rb3 Ra5 Nb2 Rb5 Nc2 Ra5 Rbb8 B3c5 Rbe8 Ned8 Bb3 Bb4 Ra3 Rd5 Nb5 Bf8 Ra5 Rc5 Nb4 Nd6 Rf7 Bh6 Rfe7 Bg5 Ref8 Bh4 Be8 Qf1 Be6 Qc1 Na2 Kc2 Bb3+
3BQb2/2p4B/r1rN1Rbb/2p5/B1Pb1pK1/Q2r2nn/qBR2P1P/2n2k2 w - - 1 2 legal: proof: b4 Na6 g4 Nb8 e4 h5 Nc3 d5 Na4 dxe4 gxh5 Qd3 b5 Qd8 b6 axb6 Nc5 bxc5 Ke2 Kd7 d4 Ke6 c4 Kf5 a4 Kg4 d5 g5 h6 e5 d6 f5 h7 b5 a5 e3 a6 e4 a7 b4 d7 b3 Bb2 Nc6 Qd2 Nge7 Qe1 Ne5 Bc3 b2 Nh3 b1R Bb2 Nd3 Ra2 Rd1 Bg2 Nc1+ Kf1 e2+ Kg1 e3 Bc6 Rd3 Qc3 e1B Kg2 e2 Qa3 Bc3 Be4 e1B Rf1 Bed2 Ra1 Bd4 Qa5 Kh4 Bf3 g4 Ng5 g3 Nf7 Bdh6 Bd1 f4 Qa3 Nf5 Nd6 Rg8 h8Q Rg6 Qg8 Qe7 Qh8 Qe2 d8B+ Rf6 Ba4 Qd2 Bc3 Qa2 Bb2 Bd7 Rd1 Be8 Rd2 Bg6 Rc2 Kg4 Rb1 Re6 Qe5 Rf6 Qe3 Kh4 Kf3 Kh3 Ra1 g2 Rb1 Ng3 Ra1 Rb8 a8B Rb6 Be4 Ra6 Rb1 Be8 Bh7 Bg6 Nb7 Rfc6 Nd6 Be5 Ba1 Bd4 Rb6 Nf5 Bb2 g1N+ Ke4+ Kg2 Qe1 Nh3 Qe3 Kf1 Kf3 Bhg7 Kg4 Ng3 Qe8 Bh6 Nc8 Rd6 Rc6 Rd5 Re6 Rdd6 Rf6 Rdb6 Nd6 Rc6
2Q4R/1K1B1Q2/1rn1nNpB/1kb1bN2/3r4/p1PbpB2/P2Pb1q1/2rB1n2 w - - 0 1 legal: proof: f4 c5 g4 d5 b4 g6 bxc5 Nc6 e4 dxe4 g5 Nb8 f5 Bd7 Na3 gxf5 g6 f4 g7 Bf5 Rb1 Bg4 Rb6 Bc8 Rg6 hxg6 Kf2 Kd7 h4 Kc6 c3 e5 h5 b5 h6 f5 h7 a5 Ne2 e3+ Kf3 a4 Rh3 b4 Qc2 e4+ Kg2 b3 Qd1 f3+ Kg3 b2 Kf4 b1R Ke5 f2 Ng3 f4 Rh2 f3 Ba6 f1B Nb5 e2 Nf5 e1B Nc7 e3 Qb3 f2 Qf7 Be2 Nd5 f1N Bb7+ Kb5 c6 Nh6 g8B Qg5 c7 Qg2 Ba3 Rc1 Nf6 Ra6 Bf3 Nc6+ Kd5 Bg3 Be7 Bd7 c8B a3 Bc5 Be8 Bd7 Be5 Bb4 Bc5 Rh3 Ba7 Bf8 Bc5 Rh1 Ng4 Bg7 Nf2 Bh6 Ne4 Rh5 Ng5 Rh1 Ba7 Rh3 Bed4 Kd6 Bac5+ Kc7 Be5+ Kb7 Bd3 Qf8 Be2 Bb3 Ne6 Bd1 Bf7 Qe7 Rd8 h8Q Bg8 Qf7 Bd3 Bc8 Rd4 Bd7 Ng5 Qfg7 Bgc4 Qc8 Be4 Qf7 Be2 Bf8 B4d3 Rh8 Ne6 Bh6 Rb6+
1Bb2r1q/KQnnP3/1Ppr4/br3kbp/B1pB1n2/3n1NQ1/2P3R1/3N3B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 Ra4 e5 Rc4 exf4 b4 dxc4 Kf2 Ke7 g4 Ke6 e4 f5 d4 h5 b6 h3 g5 f3 Ke3 h2 e5 f2 b7 Bh6 b5 Nf6 Qf3 Na6 b8B Nd7 Bb2 Rf8 Bg2 f1R Qg3 Rd1 Nc3 f4+ Ke4 f3 g6 f2 g7 f1N b6 Bg5 Nf3 Qf6 Rg1 Ne3 Bh1 Nd5 Rg2 Nf4 Ba1 Rb1 Nd1 Rb5 Bc3 Qh6 Ba1 Qh8 g8B+ Ke7 e6 Kf6 d5+ Kg6 Ke3 Kf5 e7 Rf6 Kd4 Rd6+ Ne5 Nb4 Bf7 a5 Be8 a4 Bb2 a3 Bc3 Qh6 Nf3 a2 Bb2 a1B Bc3 Rf6 d6 Qh8 Bb2 Nbd5 Bc3 Ne5 d7 Rd6 d8Q Bb2 Bc6 Bc1 Be8 Bd2 Bb2 Ba5 Qd7+ Re6 Qc6 Rd6 Qb7 Rc5 Bb5 c6 Ba4 Rb5 Ba1 Rb2 Kc5 Nc7 Rd2 Rb4 Bd4 Rb1 Bg2 h1N Re2 Nf2 Bh1 Rd8 Rd2 Nd7+ Kd6 N2d3 Rg2 Rb5 Be3 Nce6 Bd4 Ng7 Kc7 Rf8 Qh2 Rf6 Qh4 Rd6 Qg3 Ne8+ Kd8 Ng6 Ba7 Ngf4 Be5 Nef6+ Kc7 Rb8 Qa8 Bb7 Bd4 Rf8 Bb8 Bc8 Qa6 N7c5 Qa7 Bd7 Qa6 Nce6+ Kb7 Nc7 Ka7 Bc8 Qb7 Nd7
3Q2nb/nk2pP1N/2b1Q2p/pN2RPr1/r3r1b1/1BK2nqQ/P1R1b3/6Q1 w - - 0 1 legal: proof: e4 c5 c4 g5 b4 f5 exf5 d6 h4 gxh4 Bb2 Kf7 Bd4 cxb4 c5 Ke8 c6 Qb6 Be3 Qd8 Bc5 dxc5 d4 b5 Kd2 h3 f4 h6 g4 h2 c7 Kd7 g5 Kc6 g6 c4 f6 b3 f7 b4 g7 b2 d5+ Kb7 d6 c3+ Kc2 b3+ Kd3 c2 d7 c1R Bh3 Rc4 Na3 b1B+ Qc2 b2 Nf3 Re4 Nb5 Nc6 Rc1 h1B Be6 a6 Bb3 Na7 Kc3 Qe8 d8Q Bg4 Qh2 Bd3 f5 b1N+ Kb2 Nd2 Ng5 Nf3 Qh3 Be2 Nh7 Qc6 Rc5 Qd6 Kc3 Qg3 Rg1 a5 Rg2 Rb8 Re5 Ra4 Qe8 Rd8 Rf2 Rdd4 Qd8 Re4 Rh2 Nf6 g8Q Bg7 Qd7 Bg2 Qe6 Bh1 Qd8 Rg8 Qd1 Bh8 Qg1 Rg5 Rg2 Ng8 Rf2 Nc6 c8Q+ Kb6 Qd8+ Kb7 Rg2 Na7 Nd4 Bb5 Rc2 Bc6 Nb5 Bg2 Qd3 Bf1 Qd8 Be2
K3n1qR/5Bkp/1b1Q1qrR/4PqpP/np1q4/P5q1/2NrR1bR/3QN3 w - - 0 1 legal: proof: d4 a5 c4 e5 g4 d5 b4 axb4 Be3 f5 cxd5 fxg4 d6 Nf6 d5 Ng8 Bd4 exd4 Kd2 Kf7 Kd3 b5 Ke4 g5 h4 c5 f4 b3 e3 d3 a3 b4 h5 b2 f5 c4 d7 d2 d6 g3 Kd5 g2 e4 c3 e5 c2 f6 c1Q Rh2 Ra6 Nc3 b1Q Ra2 Qf5 Nf3 g1Q Nb5 Qg3 Bc4 Bb7+ Kc5+ Bd5 Ne1 Qcc2 Rb2 Qcb3 Nd4 Qe7 d8Q Nd7+ Kb5 Nb6 d7 Na4 Ndc2 Re6 Qb6 Bg2 Ka6 Qd8 Ka7 Bc5 Ra2 Kf8 f7 Nf6 Rb2 Kg7 f8R Ne8 Rf6 Rc6 Rd6 Qdf6 d8R Rg8 Re6 Rd6 Ra2 Rd5 Ka8 Rd4+ Qc6 Bb6 Red6 Rd3 Bf7 Rd5 Re6 Qc4 Qd6 Rd4+ Qf3 d1Q Rc8 Rd2 Qfd5 Qd8 Rh6 Qdf6 Rb8 Qa1 Qf3 Qad4 Rd8 Bh3 Qd1 Bg2+ Qc6 Rf2 Bd5 Nd6 Na1 Kh8 Rf8 Ne8 Qd6 Qcb3 Rd2 Qa2 Nac2 Qac4 Re2 Qcb3 Re3 Rd2 Re2 Qa2 Rf7 Rg6 Rf8+ Kg7 Rh8 Bf1 Be4 Qaf7 Bd5 Qg8 Bf7 Bg2+
q1q5/3k3q/PR4p1/1K1B1pRn/1r1QBP1p/2r1n1nP/1QN1bB2/1b4Bq w - - 0 2 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 Be3 f5 Bc1 e5 Bg2 Be7 Bf1 Bf6 gxf6 d3 Nc3 Ra6 Nb5 Ra8 Nd4 exd4 Kd2 h5 c4 d5 e4 b5 a4 b3 f4 b4 c5 g6 e5 h4 c6 b2 a5 b1B e6 b3 e7 b2 c7 Ba6 c8Q Nc6 Qb8 Qc8 h3 Kd7 f7 Nf6 f8B Nh5 Ke1 d2+ Kf2 d3 Ke3 Nd4 Bg2 Ne2 Be4 Neg3 Kd4 Bc4 Kc3 d4+ Kb4 Bb5 Qa4 d1N a6 d2 Ne2 d3 Rg1 Ne3 Nd4 d1Q Nc2 d2 Bd5 Qf3 e8B+ Kd8 Bc5 d1Q Bd4 Be2 Bec6 Ra7 Bd2 Rc7 Be1 Ke7 Bb7 Rc4+ Kb5 Kd7 Bf2 Qc1 Rg2 Qh1 Ra3 Re8 Rb3 Re4 Bb6 Rc3+ Qc4 Rd4 Qd3 Rdc4 Qd4 Qe4 Bc5 Qe7 Qbe5 Qh7 Qf6 Ne4 Rg5 Neg3 Be4+ Kc7 Bbd5 Kd7 Bd3 Qe4 Bb6 Qee8 B3e4 Qa8 Bc5 Qec8 Qde5 Nd1 Ka5 Rf3 Be1 Ba2 Rb6 b1Q Qb2 Rfc3 Kb5 Qa1 Be3 Qc1 Qd4 Bb1 Bg1 Ne3 Bef2 Qe1 Bh2 Qh1 Bhg1 Rb4+
k3b1n1/b1K1pqpQ/5nP1/q2p1Qr1/bq1B4/q3RBP1/P1B2N2/4Br1R w - - 0 1 illegal: No proof kernel forced: wxDB
Rn5q/5p1q/npnPkPr1/1Br2R2/1bnp2b1/1Q5P/Q1NQN1QK/1r6 w - - 0 1 legal: proof: d4 a5 c4 e5 g4 d5 b4 axb4 Bb2 h5 cxd5 hxg4 d6 Bf5 d5 Bc8 Bd4 exd4 f4 Kd7 Kf2 g5 Kg2 c5 e4 c4 a4 g3 f5 b3 f6 b2 a5 c3 a6 c2 h3 c1N e5 b6 a7 g4 Qf3 Rh5 Ra2 Nb3 Qe3 Nc5 Qd2 Nca6 Ne2 Ne7 Na3 b1R Nc2 Nec6 Kg1 g2 Kh2 g1N e6+ Ke8 e7 Kd7 Ra3 Rg5 Rf3 Rg6 Rf5 Qe8 Nc3 Qd8 Bb5 Qe8 Ne2 Nf3+ Kg3 Ne5 Kh2 Nc4 Rg1 Bg7 Rg3 Qh8 Ra3 Bf8 Ra2 Ke8 Ra4 Be6 Ra3 Kd7 Ra5 Kc8 d7+ Kc7 e8Q Bb4 Ra4 Kd6 d8Q+ Bd7 Qee3 g3+ Kg2 Qh7 Qg8 Be6 Qb3 Kd7 Rh5 Bg4 d6 Ke6 Rf5 Qh8 Ng1 Qh7 Kh1 g2+ Kh2 Nd7 Ra5 Rc8 a8Q Ndb8 Ne2 Na7 Qaf3 Rc5 Qf2 Nac6 Ra3 Nc7 Ra8 Nca6 Kg3 g1Q+ Qg2 Qd1 Kh2 Qc1 Qd8 Qe1 Qc7 Qeh4 Qa7 Nc7 Qaa2 Nca6 Qbg3 Qh8 Qgb3 Q4h7
N5bn/rP2b2Q/q2kp1Q1/3NqB2/p2n3P/1N2pRrr/1R2P1r1/2N1K2b w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 g4 h5 Bf4 hxg4 Bc7 f6 Be5 fxe5 f4 d5 c4 Kd7 b4 g5 h3 a5 f5 a4 b6 d3 c5 g3 b5 g4 c6+ Kd6 f6 g2 c7 d4 b7 e4 b6 e3 f7 g3 Qc1 Qe8 Qc2 Nh6 Nc3 Ra7 Nf3 g1R Nd2 g2 Na2 Nc6 b8N Bb7 Nc1 Ba8 Ndb3 d2+ Kd1 Qc8 Qh7 Qa6 Nd7 e6 c8Q Be7 f8N Nf7 Rb1 Bb7 Qg6 Rh5 Nh7 Nh8 Nhf6 Rh7 Nd5 Ba8 Kc2 d3+ Kc3 d1R Rb2 d2 Qb7 Nd4 h4 Rg7 Rh2 Re1 Rh1 d1B Rh3 Bc2 Rg3 Rh1 Rf3 g1Q Bh3 Qh2 Bf5 Rd1 Nc7 Qe5 Nf6 Rdf1 Qe4 Bb7 Na8 Rh3 Nd5 Rg1 Qh7 Bc6 b7 R1g3 Qg4 Be4 Qgg6 Be8 Rf2 Bh1 Rf3 Nb5+ Kc2 Nd4+ Kd1 Bf7 Ke1 Bg8 Qf6 R7g5 Qfh6 Rg2 Q6g6 R5g3
1KNQ1bq1/2r1qnBR/k4Npp/Bp1bqP2/1P5r/2nB4/nQ3P2/n4B2 w - - 0 1 illegal: No proof kernel
6r1/P3RP2/1nrb1Nb1/pnq1Q1N1/P5Qp/3B1Nr1/kB3p1n/Nqr4K w - - 0 1 illegal: No proof kernel
r1n4N/1b1p1q2/p2KRpPb/n1R2r1R/k2B1PP1/3Q2N1/2r3q1/2b1QrR1 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 hxg5 e5 a5 e4 a6 bxa6 e3 a5 Be2 a4 Bd3 exd3 Kd2 h5 b4 a3 g4 a2 f4 a6 c4 h4 e4 h3 g6 h2 b5 f6 e5 Qb6 e6 Bd6 c5 Ke7 c6 Rh5 c7 Bb7 c8R Rf5 Rc5 Nc6 Nf3 Na5 Qe1 Qc6 b6 Qd5 Rg1 h1Q Nc3 Qg2+ Ne2 Qc4 Rb1 a1B Rbb5 Bb2 Ng5 Ba3 Bb2 Qb3 Kc1 d2+ Kb1 d3 Nf7 Qbd5 Bd4 Bc1 Nh8 d1R Ng3 d2 Kc2 Kd8 Kc3 Bf8 Kb4 Bh6 Rc6 Ke7 Rcc5 Kd6 e7 Qf7 e8R Ne7 Nh1 Re5 Ng3 Nc8 Re7 Re2 Rh5 Re5 Rc5 Rf5 Re2 Bb2 Re3 Rc1 Re4 d1R Ree5 Bc6 b7 Rc2 Re3 Kc7 Re6 Kb6 b8Q+ Nb7 Rh4 Bc1 Qd6 Na5 Rh3 Rcd2 Rh5 Rc2 Qe4 Rf1 Qe1 Bf8 Qd5 Bg7 Qb3 Bh6 Qd3 Kb7 Rc3 Bd5 Kc5 Ka7 Rc4 Bb7+ Be5 Ne7 Kd6 Kb6 Bc3 Kb5 Rc5+ Ka4 Bd4 Nc8+
3n2k1/rQb2bpn/3p2R1/r2Q1r2/B1QPNKbN/1R1q1Pr1/P3p2q/2Q5 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 c5 b4 cxb4 g5 a4 g6 a3 Bb2 axb2 Be2 hxg6 Bd3 g5 Bf1 g4 Ke2 Kf7 Ke3 e5 d4 b5 h4 b3 c4 b4 f6 e4 c5 g3 c6 g2 c7 Bd6 f3 Rh5 Qe1 Rha5 h5 R8a7 h6 Nc6 Ne2 g1R Nbc3 b1B h7 b2 h8Q b3 Rh6 Rg3 Qc1 Kf8 f7 Qh4 Qh7 Nf6 Qf5 Nh7 Nf4 Nd8 Bb5 Qh2 Ba4 Bc2 Rf6 b1Q Ng2 b2 Rg6 Bb3 Nh4 Qbc2 Qb5 b1R Qb7 Rb2 Rb1 Bc4 Rg4 Rbb5 Rb3 Re5 Rg6 Qd3+ Kf4 e3 Ne4 e2 Qb4 Be6 Qb5 Bg4 Qbc4 Bb7 c8Q Bd5 Q8c6 Bc7 Qb7 d6 Rg5 Ke7 f8Q+ Ke6 Qf5+ Ke7 Qcc6 Bf7 Q6c4 Kf8 Rg6 Kg8 Qfe6 Rg5 Qed5 Rf5+
2QBrq2/BKp1n2k/1n6/bBPPbp1B/N1q2n1p/2Rr3P/QnR5/2r5 w - - 1 2 legal: proof: c4 g5 d4 d5 b4 a5 e4 axb4 f4 gxf4 c5 Qd6 Na3 Nd7 Nc4 dxc4 d5 Ra7 Kf2 Nb8 Ke1 Qd8 d6 Be6 Qb3 Ra6 Qd1 Bd5 exd5 Ra8 Ke2 f5 Kf3 Kf7 g4 Kg7 a4 e5 g5 b5 d7 h5 h3 c3 a5 b3 a6 b2 a7 b1N g6 h4 Ra6 e4+ Kg2 f3+ Kf2 b4 Ke3 c2 Kd4 b3 Ba3 c1N Bb5 f2 Qd2 f1Q Bb4 e3 Ra2 b2 Ne2 Nd3 Ba5 Bd6 Nc3 e2 Kc4 e1B Na4 Nc3 Bb6 b1R Rc2 Qf8 d8B Nd1 Rg1 Ne7 Rg3 Kg8 g7 Nd7 Qg2 Rb8 a8Q Kh7 Ba7 Be5 Re3 Rb7 Qc8 Ba5 Qe2 Nf4 Rec3 Rc1 g8B+ Kh6 Bf7 Kh7 Bh5 Nb2+ Kb3 Rb8 Qc4 Rb6 Ka3 Rg6 Qa2 Rg3 Kb3 Rd3 Ka3 Bb6 Kb4 Qe2 Ba6 Ba5+ Kb5 Neg6 Kc6 Ne7+ Kb7 Nb6 Bc4 Qe4 Bb5 Qc4 Rh2 Qf6 Rd2 Re8 Rdc2 Qf8
B1q2r1b/1PpN2rp/3n3R/1QPn1b1K/1Np1Nr2/1N2k2r/2Pn4/1qQ2R2 w - - 1 2 illegal: No proof kernel
B1K1nn2/2r1Q3/3P2Q1/b1n1B3/1p1p1q2/Nn1N1q1k/1PpqPB1r/2BR1b2 w - - 0 1 illegal: No proof kernel
Rnn5/2RQQ1rp/RbpqNb2/2P1BK1R/pr4PP/3bq3/bN2k3/1r6 w - - 0 2 legal: proof: e4 d5 f4 dxe4 a4 g5 Be2 gxf4 Bf3 b5 axb5 exf3 Kf2 Kd7 c4 Kd6 b4 Ke5 h4 Ke4 d4 a5 g4 e5 c5 f5 d5 a4 b6 c6 d6 Ra7 b5 Bg7 b7 Bf6 b6 Ne7 Ne2 Be6 d7 Nc8 Bd2 Kd3 Nd4 e4 Re1 Ba2 Nc3 Qe8 d8Q e3+ Kg1 e2 Kh2 f2 Ne6+ Qd7 Qe7 f1Q Rb1 f3 Kg3 f2 Kf4 Qg1 Rb5 f1B Ra5 Rg8 Ra6 Rg7 Be3+ Kc4 Bd4 Qd6+ Be5 Qgd4+ Kf3 f4 Qd2 Qg1 Ke4 f3 Kf5 Qe3 Nd1 f2 Nb2+ Kb5 Rb1 e1B Rd1 Ra8 Qd5 Ba5 Rd4 Bd3+ Re4 Nd7 b8R Ra7 b7 Bb6 Ra8 f1R+ Nf4 Rb1 b8R Rc7 Rb7 Nb8 Ne6 Rd7 Rc7 Rd8 Nd4+ Kb4 Qde6 Kc3 Q6d7 Kd2 Ne6 Ke2 Qee8 Qf8 Qde7 Rd4 Q8d7 Bb5 Rf4 Rb4 Rd4 Qd8 Rd5 Qf8 Qf7 Qd6 Qfe7 Bbc4 Bh2 Qc1 Ke4 Qf1 Rh5 Qh3 Be5 Qe3+ Kf5 Bd3+
qq3Q2/Q1r2r2/bb4Np/Q1pnrb2/6bB/PBPQ3P/1R2p2K/k1n4N w - - 0 2 legal: proof: e4 d5 f4 dxe4 b4 e5 Nh3 a5 Ng1 axb4 fxe5 g5 a3 Bg4 Ra2 Qc8 Rb2 Bd7 Rb3 Qd8 Rf3 Bc8 Rf4 gxf4 Kf2 Kd7 d4 Kc6 g4 Kd5 Kg2 f5 e6 b5 c3 e3 e7 b3 e8Q b4 h3 b2 g5 h6 g6 b3 g7 f3+ Kh2 f2 Qeh5 Nd7 Qdg4 Ra7 Qg3 Ngf6 Bg2+ Kc4 g8Q+ Nd5 Qgf7 f1R Qf2 f4 Qhf3 Ne5 Q2e2+ Nd3 Qd7 Bc5 Qef2 Bb6 Ne2 c5 Ng3 Rc7 Qg7 Bg4 Nd2+ Kb5 Nc4 Ka4 Rg1 b1Q Nh1 b2 Ne5 Kb3 Ng6 Ka2 Bd2 Qg8 Be1 Qa8 Qd1 Nc1 Qd3 f3 Qh7 Nf4 d5 Ka1 d6 Re8 d7 Re5 d8Q Nd5 Qg7 Rb7 Qgf8 Rc7 Qfh4 f2 Qhe7 Qc2 Bf3 b1B Bd1 Qb2 Rg2 Qb4 Bb3 Qb5 Qd4 Bbf5 Qb4 Qe8 Qdd6 Qeb8 Qa5 Rg1 Qdd7 f1B Rb2 Ba6 Bh4 e2 Qdb5 Rf1 Qd3 Be4 Qd7 Rf7 Qde7 Bef5 Qd7 Rc8 Qa7 Rcc7
K3Brk1/r1b2n1p/2qrP3/QqRpnp1r/Q2n1B2/NR4P1/1Q2QP2/7b w - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Nh3 cxd4 Nc3 d3 Ng1 e6 Nd5 exd5 Rh2 d4 Rh3 Na6 Rh1 Nb8 Kd2 a5 e4 d5 b4 f5 c4 Kf7 e5 a4 b6 h3 e6+ Kg7 b5 a3 c5 h2 g3 a2 c6 Ba6 b7 Qd7 c7 Bd6 c8Q Bc7 b6 Qc6 Rb1 a1N Ne2 Nc2 Rb3 Nd7 b8Q Nh6 b7 Ne5 Qd8 Nhf7 Nc3 Rf8 Nb1 Kg8 Qa7 Bb5 Rg1 h1R b8Q Rh5 Qa4 Ra6 Qe2 Bc4 Qb6 Qb5 Qba5 Rd6 Qb8 Qc6 Na3 Ba6 Kd1 d2 Qbb4 Bc4 Qc3 Bd3 Qb2 Be4 Rh1 Qb5 Rh4 Nb4 Rh1 Bf3 Rh4 Nbc6 Kc2 d1R Bf4 d3+ Kc3 d2 Rh1 Ncd8 Kd4 Rb1 Rh4 Bh1 Rg4+ Ng5 Rh4 Ndf7 Rg4 Qd7 Kc5 d1Q Rh4 Qd3 Rg4 Nc6 Rh4 Qc2+ Kb5 Qc5+ Ka6 Nd4+ Kb7 Ne5 Rg4 Bb8+ Ka8 Qcb5 Bg2 Qc8 Bf3 Qcd7 Rh4 Ngf7 Bg4 Rh6 Bh5 Bc7+ Ka7 Qdc6 Rg4+ Ng5 Be8 Rh5 Rh4 Qcb6+ Ka8 Ngf7 Rh2 Q6c5 Rg2 Qcc4 Rg1 Qcc5 Rc1 Qcb6 Rc5 Q6c6+ Ka7 Qb4 Re3 Be4 Qa2 Bh1 Qa1 Rb3 Qab2 Qc4 Rf3 Rb7+ Ka8 Q4b5 Rb3 Ra7+
1q2N2K/3nBBP1/br2pp2/5p2/1RqQ1n1b/NPr1P3/2bN1qQ1/2k1b2N w - - 0 1 legal: proof: f4 b5 g4 c5 a4 g6 d4 cxd4 axb5 h5 g5 Ba6 f5 gxf5 Ra3 Bb7 Rg3 Bc8 Rg4 hxg4 Kf2 d5 Kg3 Kd7 Kf4 Kd6 c4 Kc5 Ke5 Kb4 h4 a5 b6 g3 e3 a4 c5 d3 g6 d4 b7 a3 b3 d2 h5 g2 c6 a2 h6 a1B h7 Nf6 c7 Ra6 Qe2 d1B Rh4 Nd5 Nd2 Kc3 Nh3 Kc2 Nf2 g1Q Ba3 Rb6 Nh1 Nf4 Qg2 Qf2 Bc4 Bc3 Bd6 Rg8 h8Q Kc1 Qf6 Bc2 g7 Na6 b8N Nc5 Nc6 d3+ Nd4 Ba6 c8N Bb4 Nb5 Nd7+ Kd4 Qc7 Na3 Qb8 Bc5 Rh8 Nd6 Ba5 Qe5 f6 Bf7 e6 Ne8 Bd6 Bb4 Bc7 Be7 Bd6 Nc7 Rc8 Ne8 Rc3 Qc5 Nd5 Rg4 Bg3 Qc4 Nf8 Kc5 Bh4 Rd4 Nf4 Re4 Rb7 Kc6 Bb4 Qc5 Ba5 Rb4 Nd7 Qc4 Qa8 Kd6 Rb6+ Kc7 Qc6+ Kd8 Qd5 Qd4 Qc4 Bd6 Qc6 Ke7 Qc4 Nf3 d2 Bc5 d1Q Nd2 Nb8 Kf8 Nd7+ Kg8 Qdf3 Be7 Qa8 Kh7 Qb8 Kh8 Qd3 Rb5 Rc5 Nf3 Be1 Rb4 Rc3 Nd2 Qc4
r2qRn2/5pbn/Q1Np4/2B5/rN2p3/1rPq1P1q/b4QP1/kr2RRKR w - - 0 1 illegal: No extended proof kernel
3K2Nn/2b1p3/N3br2/1n1P1pN1/1Q2n1qn/PbBkP2r/2Rqp1B1/1N1Q4 w - - 0 1 illegal: No proof kernel
2rq1Kb1/r2B4/pQ1R3Q/n1nP4/RqR3pq/2p2Bbr/PR4Pk/4N2r w - - 1 2 illegal: No possible last move, all moves rejected
4B1bn/2p3kr/p4pnN/K2RnPbn/1PP1q3/4Qn2/1NQ2R2/1Q1nQ2r w - - 0 2 legal: proof: h4 b5 a4 d5 axb5 g5 e4 dxe4 d3 gxh4 Ke2 e3 Bd2 exd2 f4 h5 g4 e5 g5 h3 b6 h4 b7 a6 g6 h2 d4 h3 Kd3 e4+ Kc3 f6 g7 Kf7 d5 e3 d6 e2 Kb4 e1N f5 Qd7 Ra2 Qc6 Ka5 Qe4 d7 Nf3 d8Q Ne7 Qe1 d1N Qd4 Rh7 Nc3 Be6 Bb5 Ng6 Na4 Nh8 c4 Nd7 b8Q Nde5 Qde3 Neg6 Be8+ Kg8 b3 Ba3 Rf2 Bc1 Nb2 Bd2+ Qc3 Bg5 Qbb4 Rd8 Qc2 Rd3 Qe3 Rc3 Qb1 Rc1 Qbe1 Bd5 b4 Bf7 Ne2 Bd5 Rg1 h1N Ng3 h2 Nf1 Ng3 Rgg2 h1N Nh2 Nh5 Ng4 Be6 Rd2 Nhf2 Rd5 Nd3 Rf2 Nde5 Qc2 Rh6 Qb1 Kh7 Qc2 Bg8 Qb1 Ng3 Qc2 Rh4 Nh6 Nh5 Qb1 Nf8 Ka4 Bf4 Q1e2 Bf7 Rd3 Ng3 Rd7 Nc3+ Ka5 Rch1 Rd5 Nd1 Ng4 Kg8 Qec2 Rh7 Rf1 Nh5 Rf2 Be6 Bb5 Kf7 g8Q+ Ke7 Qg6 Bg8 Be8 Bh6 Qed3 Bd2 Nh6 Bf4 Qg2 Bg5 Qe3 Nfg6 Qf1 Kf8 Qfe1 Kg7
R1n3Q1/1r2P1Q1/2Q1rQ2/2r1B2N/q2ppp2/1r2brN1/1k1P1Prn/R2b1K2 w - - 0 2 illegal: No proof kernel
q3n1k1/3BrNp1/n3N1Pb/1PP1N3/p2QQ1nr/8/b1N1pbR1/n1BK2b1 w - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 e4 fxe4 g4 h5 g5 b5 axb5 Rh7 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 f4 Kf7 c4 e5 h4 a5 b6 d5 b5 g3 b7 g2 h5 a4 f5 e3 c5 e4 f6 d3 h6 e2 h7 d2+ Kf2 e1B+ Ke2 d4 Qb3+ Be6 Ba3 d1N Rh5 Na6 b8Q Be7 Qh2 Ra7 Rh4 Nf2 Qb2 Qa8 Qe5 Ba2 Nf3 g1B Bh3 Ng4 Kd1 d3 Qbd4 d2 Bc1 Bef2 g6+ Kf8 f7 Bg5 Qe6 Re7 Na3 Bh6 Ne5 N8f6 Nc2 Ne8 Qec4 Ngf6 Bd7 Ng4 Ke2 d1N Rh2 Nde3 Rg2 Nf5 Kd1 e3 Qe4 Nd4 Qc3 Nb3 Qcd4 Na1 Bc6 Rb7 Bd7 Ke7 f8N Rc7 Ne6 Rb7 Ng5 Kf8 Bc6 Rf7 Bd7 Re7 Ngf3 Bf4 Ng5 Rg8 Nh3 Bg5 h8N Bf4 Nhf7 Rh8 Nb4 Kg8 Nhg5 Rh4 Ne6 Bh6 Nc2 e2+
5N2/n3BR2/2KpQ2b/1Pn1pBpb/1b1BQn2/rP6/rB2N1Pq/nb3k2 w - - 0 1 illegal: No proof kernel
1Q5R/PBn5/1Qbbp3/4qr1K/QrN1krpP/R1r5/N1p1P3/3bbQn1 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 d4 Kd7 f4 Kd6 h4 g5 a4 c5 a5 b5 f5 e6 a6 g2 Kf2 c4 Kg3 c3 a7 b3 f6 b4 f7 b2 Ra2 b3 Ra3 Qf6 Rh3 Nh6 Ra1 Bd7 Ra3 Bc6 Nf3 g1B Ra2 Nf5+ Kg2 g3 Qc2 Bf2 Ra6 Qe5 Nfd2 Be1 Kf3 g2 Kg4 g1R+ Bg2 Rf1 Ra3 Na6 Rd3 Nc7 Rf3 Be7 f8Q Rc8 Rd3 Rg8 Kh5 Rf4 Qf6 Rgf8 Nc4+ Kd7 d6 Rf7 d5 Nd4 Nbd2 b1B Ne4 b2 Qa4 Bc2 Qf5 b1R Rf3 Kd8 d7 Bd1 Rd3 c2 Nc3 Bf8 Na2 Ke7 Rd2 Rf6 d8Q+ Kf7 d6 Rb4 d7 Bd6 Qh8 Nf3 d8Q Ng1 Qh3 R6f5 Rd4 Nd5 Qb6 Nc7 Qe8+ Kf6 Qg8 Bb5 Bb7 Bc6 Qf1 Qa5 Nb2 Ke5 Rd2 Ke4 Nc4 Qe5 Qh8 Bf8 Rd7 Bd6 Rh7 Rf3 Qf8 Rc3 Qg8 Rcf8 Rh8 R8f7 Qb8 Rf4 Nb2 R7f5 Nc4 g4+
1Bnrb1B1/bP1nqp2/1bQ1P2k/2Qp1B2/2R1n3/br1R4/1p2NPKn/4B3 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 a4 exd4 Nc3 h5 Nd5 hxg4 axb5 Qc7 b6 Qd8 b5 Rh7 Nb4 cxb4 Bg2 Rh5 Bf1 Rh8 c4 g5 e4 d5 h4 a5 h5 a4 b7 a3 c5 a2 b6 d3 e5 b3 h6 d2+ Ke2 g3 Kf3 g4+ Kg2 Qe7 e6 Bd7 c6 Ra3 Qf3 d1N c7 Nc3 c8B Ne4 Rb1 a1B h7 Bd4 Rh4 b2 Qf4 Rb3 Qf3 Bc6 Bd3 Nd7 b8B Ba4 b7 Bb6 Ne2 Bc6 Kg1 g2 Bd2 Ba7 Kh2 g1B+ Kg2 g3 Rd1 Bh2 Qe3 Bb5 Qc5 Ba4 Kf3 g2 Be1 g1N+ Kg2 Bc7 Bb1 Bc6 Rd3 Bcb6 Rf4 Nf3 Rh4 Nd6 Rc4 Ngf6 Bc2 Nh2 Bb1 Bg7 Bc2 Rf8 h8Q Nfe4 Bb1 Bh6 Qc3 Rh8 Qc2 Kf8 Qc1 Kg7 Qc2 Nf8 Bd7 Nc8 Qc1 Ba4 Bb5 Nd7 Qc6 Rd8 Qe3 Bf4 Qec5 Bd6 Ba6 Rc3 Bc2 Kh6 Bb1 Bc2 Bb5 Bd1 Ba4 Ra3 Bac2 Rb3 Qa3 Ndf6 Re3 Nc5 Qb5 Rc3 Bh7 Ba4 Bg8 Rb3 Bf5 Nce4 Rd3 Bb4 Qd7 Bb5 Qd6 Be8 Qc6 Nd7 Qa5 B4c5 Qab5 Bb4 Qbc5 Ba3
2NRQ2Q/3pr3/1Pb1R2n/kp1Pb1K1/1b4R1/1PR1b1Nr/bb1bp2B/q7 w - - 0 1 illegal: No possible last move, all moves rejected
2Qnr3/1pQqb2B/1P3bPB/kb4pR/1q1qR3/4Kp2/N1rr1Pq1/Q4Q2 w - - 0 1 illegal: No proof kernel
R2N2K1/r1qrQ3/3Q1b1n/p1b4p/rQb5/P4q1P/1RPrpBQ1/kB5q w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 Ne2 cxb4 Ng1 e3 Nc3 e6 Nb1 e5 Na3 e4 Nb5 Nd7 Nd4 Ne5 fxe5 g6 Nde2 g5 Nf4 gxf4 Ke2 Kd7 d4 Ke6 g4 Kd5 g5 Kc4 a3 Kc3 d5 b5 h3 a5 d6 f5 d7 h5 g6 b3 e6 b2 e7 b1R e8Q f3+ Ke1 f4 g7 f2+ Ke2 b4 Bg2 f1R Qe7 b3 Qed6 b2 Ra2 Ra7 Ra1 Qc7 d8Q Be6 Q8e7 Nh6 g8Q Nf7 Ra2 Rh7 Nf3 Ra1 Qg4 b1Q Nd4 Rg1 Qf1 f3+ Kd1 f2 Ke2 Bg7 Rb2 Bf6 Nc6 Rg7 Nd8 Bc4+ Kd1 Rh7 Bf3 Rg3 Qg2 Rg7 Qh4 R3g4 Re1 f1Q Be2 Qh1 Bd3 Qa2 Ke2 Qb3 Rf1 Qbb7 Rf5 Rh7 Rfb5 Qd5 Rb8 Rhg7 Ra8 Rb1 Rb7 Rb5 Bd2+ Kb2 Be1 Ka1 Bf2 Rb4 Rbb8 Ra4 Rb2 R4g5 Qhf4 Qdb7 Qb4 Rd5 Qfe5 Rd7 Q5d6 Rg5 Qd2 Rd5 Q2b4 Bb5 Bc4 Rd3 Bb3 Bc4 Ba2 Qd5 Bg1 Qdc6 Bb1 Rd2+ Ke1 e2 Kf2 e1B+ Ke3 Qd5 Kf4 e3 Bf2 Qdc6 Kf5 e2 Kg6 Qf3 Bb6 Bg3 Kh7 Bf2 Kg8 Bc5 Qdh2 Bd6 Bf2 Bc5 Qhd6 Nh6+
1bb5/5qkp/QnN1r2N/1B1n2p1/4Q1qR/4q1NP/P1Rp2Pb/1N1Kb2n w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a5 Qd3 axb4 Qd1 d3 Nd2 b5 Bb2 d5 Bf6 d4 Be5 f6 Nb1 fxe5 Qg4 Ra7 Qf3 Rd7 Qd1 Rd5 exd5 Be6 Be2 Bg4 Bf1 Bc8 c4 Kf7 f4 g5 d6 d2+ Ke2 d3+ Kf3 b3 f5 e4+ Kf2 e5 h3 b4 c5 b2 c6 e3+ Kf3 e2 f6 e1B d7 e4+ Ke3 b3 c7 Bd6 Ne2 Bh2 Qc1 d1N+ Kd4 e3 Qc2 d2 Kd3 Ne7 Qc4+ Nd5 Qa6 Qf8 Ng3 Nf2+ Ke2 Qe7 Rg1 Nh1 Kd1 Re8 d8N+ Kg6 f7+ Kg7 f8N Qf7 Nd7 Re6 Nf6 Nd7 Bb5 N7b6 Ng4 Bf2 Nc6 Be1 Ne4 Beg3 Rf1 Bf4 Nh6 Bd6 Nbc3 Bdf4 Rc1 b1Q Rf3 b2 Ng3 Qbf5 Rc2 Qg4 Qa4 Be5 Qe4 b1Q+ Rc1 Qd3 Rc2 Bb7 c8Q Bb8 Nb1 Qb3 Qc7 Bc8 Qa7 Qf5 Rf4 Qa3 Rh4 Qg4+ Qf3 Qae7 Qa6 Qc5 Rc4 e2+ Kc2 e1B Qe4 Qgf4 Kd1 Qce3 Rc2 Qg4+
1QR5/rrR3R1/pbB1bR2/3Qbp2/2b4p/P1B3PP/n4rN1/1bk1K1nr w - - 0 1 legal: proof: e4 b5 d4 g5 c4 bxc4 f4 gxf4 d5 e6 Nc3 Qe7 Nb5 e5 Nd4 exd4 e5 Qe6 dxe6 Ba6 Qg4 Bb7 Qd1 Bc8 b4 Ke7 b5 c5 g3 f5 b6 h5 h3 d5 a3 d3 b7 c3 Kf2 a6 Qd2 c2 Qe1 f3 Bf4 c1B Ne2 d2 Rh2 d1R Nc3 h4 Bh6 c4 Qe4 d4 Rb1 d3 Be2 d2 Qf4 Nc6 b8R Nd4 Rh1 Rf1+ Ke3 f2 R1b4 Bg7 Na2 c3 Rb3 d1B+ Kd3 c2 Bh5 Ra7 Qe4 Be3 R3b6 c1R Nc3 Rh7 Ne2 Nf3 Qd5 Ng1 Nf4 Nf6 Bf3 Ne4 Ng2 Nc3 R8b7+ Bd7 Rc6 Bb6 Bd2 Na2 Bc3 Bc2+ Kd2 Bb1 Rh2 Rh8 Rbc7 Rb8 Rc8 Bf6 Rg8 Rbb7 Rg7+ Ke8 e7 Be6 Rg6 Kf7 e8R Bg7 Rcc8 Bh8 Rf8+ Ke7 Rff6 Rc2+ Kd3 Re1 Rgg8 f1B+ Be2 Rd7 Rh1 Rec1 Ba5 Bf7 Rfc6 Nf3 Qd4 Bc7 e6 Bhe5 Rg7 Rb2+ Ke3 Rd2 Bd3 Rf2 Be4 Bfd3 Re1 Rd1 Re2 Rh1 Rec2 Ng1 Bd5 Be2 Kd2 Bd8 Ke1 Rdc7 R6c4 Kd6 e7 Bf1 Rb4 Bd3 Rc5 Bc4 Rb7 Rd7 Bc3 Bg8 Rg6+ Be6 Rf6 Ba5 e8Q Rf7 Ra8 Bb6 Qh8 Rg7 Rg8 Rd7 Rg7 Re7 Rb8 Reb7 Qd3 Rf3 Rcc7 Rf2 Bc6+ Kc5 Be4+ Kb5 Qd2 Ka4 Bc6+ Kb3 Qd5 Kc2 Qc8 Kc1 Qf8 Be3 Qb4 Rb6 Rbc8 Rb8 Qb7 Bb6 Qa8 Rbb7 Qb8 Bg8 Rg4 Bf7 Rg7 Be6
6KB/1p1bQ2n/B1nQ1N2/1Npq4/1PnQ2b1/3p1Qp1/2kP1P1R/rb2r2r w - - 1 2 illegal: No proof kernel
1nbkq1N1/2p1R3/4r1rP/b1BP1N2/R1QQ1pq1/2p2pq1/4RPR1/K2r3n w - - 0 1 legal: proof: c4 b5 a4 h5 axb5 d5 g4 dxc4 Bg2 hxg4 Be4 e6 Bf5 exf5 e4 g5 b4 a5 h4 c3 d4 f6 e5 f4 e6 f5 d5 g3 e7 g2 h5 a4 h6 g4 b6 a3 b5 a2 b7 g3 b6 f3 Be3 f4 Bc5 Nc6 b8R Ra7 b7 Be6 Qd4 Bg4 Kd1 Bc8 Kc1 Nf6 Nd2 Rg8 Rh2 Ne4 Ne2 g1Q+ Kc2 g2 Ng3 Ra3 Nf5 Ng3 Ne4 Nh1 Ra8 Nb8 Ra4 Rg6 Re1 a1R Re2 Kd7 e8R Rd1 Re6 Qe8 Re7+ Kd8 Nf6 Rb3 Ng8 Rbb6 Qc4 Rbf6 Kb3 Re6 Ka2 Qe1 Qd4 g1Q Rg2 Qh2 Qc4 Qeg1 Qd4 Qg3 Qc4 Nd7 b8Q Qg4 Qbb4 Nb8 Qd4 Qh2 Qbc4 Qhh3 Rh7 Bd6 Re7 Qhg3 Ba7 Bb4 Bc5 Rd2+ Kb1 Ba5 Ka1 Rd1+
6Rq/1n2Q3/2pB1pPq/1bP3bp/1R5K/QP4N1/pQ1Q2r1/1nr1Nnkb w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 exf4 h4 gxh4 c5 d6 e3 d5 Bc4 dxc4 Kf2 Ke7 g4 Ke6 d4 Kd5 g5 Ke4 b6 h5 d5 a5 b7 a4 b3 a3 d6 f6 d7 c3 Qg4 c2 Rh2 h3 Ra2 Ne7 Rg2 h2 Nf3 h1B Ne1 Bh6 Qe2 f3 Kg3 f2 Kh4 Nbc6 b8Q f1N Qa7 Ba6 g6 Re8 Rg4+ Bf4 Bb2 c1Q Be5 Bb5 Bd6 Nd5 Qb2 Na5 Qa6 Qc8 d8Q c6 Qa7 Nb7 Nc3+ Kf5 Ne2 Ke4 Ra1 Nc3 Qaa5 Nb1 Ng3+ Kd5 Qa6 a2 Qaa3 Ra4 Qa5 Bh6 Rb4 Re5 Qd8 Rg5 Qa5 Qh8 e4+ Ke6 e5 Kd5 e6 Qd2 Nf5 Rg2 e7 Bf4 e8Q Bg5+ Kh3 Qf4 Qe7 Qe3+ Ng3 Qf4 Re4 Rc4 Qad8 Rc3 Rb4 Rc4 Qc2 Kd4 Qcb2+ Nc3 Rd1+ Qd2 Qg7 Ke3 Qge7+ Kf2 Qdd7 Nb1 Qdd8 Bf4 Kh4 Rc1 Bc7 Qe2 Qd3 Kg1 Qde3+ Qf2 Rd8 Bh6 Qed2 Be3 Rg8 Qf4+ Kh3 Qfh6 Kh4 Bf4 Bd6 Bg5+
3b2bk/K1BB2qB/3nbppr/1P3Q1q/Rrq1p1QP/6Nn/2R1P2p/6B1 w - - 0 1 illegal: No proof kernel
Q1q1bB2/2pn1nq1/7p/q1PN3B/Kb1r2p1/Q1B2R2/1pPP1brN/6kB w - - 0 1 illegal: No proof kernel
1B4N1/1r1kN2p/R4qpK/b1p1P1pP/5n1N/N1QqQ1rn/3b1bP1/1r1R4 w - - 1 2 legal: proof: b4 e5 d4 exd4 c4 b5 a4 bxa4 b5 Be7 e3 Bg5 Bd3 Ba6 Bg6 fxg6 b6 Bb5 cxb5 Be7 Qf3 Bd6 Qd1 Bf8 Ke2 a5 Kf3 d5 Kg4 c5 f4 d3 h4 a3 b7 a4 e4 d2 e5 a2 b6 a3 f5 d4 f6 d3 Kg5 Ra7 h5 Kd7 Nf3 Ne7 f7 Rg8 Rf1 Nbc6 b8Q Nb4 b7 Ned5+ Kg4 Nf4 Qe1 d1Q Bd2 Nh3 Qe3 Nd5 Ba5 d2 Bc7 Qf6 Rg1 Qb3 Nh4 Ndf4 Rd1 Qd3 Qa8 Be7 Bb8 Bd8 f8N+ Kc6 Ne6 Kd7 Nd4 Bc7 Nc6 Ba5 Rg1 d1R Ne7 Rc1 Rd1 Bd2 Nc3 Rb1 Nb5 Ra4 Qa7 Rab4 Qa5 R1b3 Rac1 a1B Rb1 a2 Na3 Bac3 Ra1 Rb6 Qb4 Bd4 Qc4 Rb1 Qc3 Rf8 Ng8 R6b3 Qe4 Bf2 Qe3 Rf7 Bd6 Ke8 b8N Rfb7 Nc6 Kd7 Bb8 Rc1 Rb1 a1B Nce7 Bb2 Ra1 Rb1 Nb5 Bbc1 Ra6 Bde1 Na3 Bcd2 Qa1 Ba5 Qc3 Bd2 Qe2 Qc4 Qc1 Rf3 Qe3 g5 Qcc3 Qh6 Kf5 g6+ Kf6 Qe2 Kf7 Rg3 Nf6+ Kd8 Kg8 Qd3 Kh8 Qf8+ Nfg8 Qff5 Kg7 Kd7 Kh6 Qf6
N3bb2/B2bb3/nQ1Qrb2/1p1P2QK/3p1q2/pR1PQp2/2Rr1P1n/k1B5 w - - 1 2 illegal: No possible last move
r1bQ1rqn/pQ1N2p1/6p1/1NR1p3/KP1Nr2B/3P2P1/nR4N1/r1br2k1 w - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Be2 fxe4 Bh5+ Kd7 Bg6 hxg6 Kf1 Ke8 Ke2 Rh3 Ke1 Rh8 b4 Kf7 h4 Kf6 f4 Kf5 b6 c5 b7 e5 g3 e3 h5 Ke4 f5 e2 d3+ Kd4 Kd2 e1R Kc2 c3 Kb3 c2 f6 c4+ Ka4 c3 h6 Re3 h7 Nc6 b8N Be7 f7 Nf6 f8N Re4 Ra2 Nd5 Qf3 Bg5 Nfd7 Qg8 Na3 Nd8 Nh3 Nf7 Rb2 Bh6 Bd2 c1R Bg5 c2 Bh4 Rd1 Nf4 c1R Ng2 Ra1 Re1 Bf4 Ree2 Be3 Rec2 Bc1 Rc5 Nc3+ Kb3 Ree1 Qb7 Na2 Ka4 Re4 Nf4 Ke3 Ng2+ Kf3 Nb5 Bf4 Nc6 Bc1 Rb1 Kf2 Ncd4 Kg1 Rb3 Qe8 Rb2 Rf8 h8Q Qd8 Qg8 Nh8 Qgd5 Qe8 Qd6 Qe6 Qe7 Qf7 Qd8 Qg8
k5q1/1n1b1pQ1/n1B1P3/4rpR1/1b3Ppr/RP1rB1p1/N2R1r1R/n4KQ1 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 g4 h5 Nc3 hxg4 Ne4 e6 Ng3 Qc7 Nf5 exf5 Bf4 Qb6 Bc1 Qd8 c4 g5 h4 a5 e4 d5 f4 Kd7 b3 Kc7 h5 Kb7 c5 g3 h6 a4 e5 d3 h7 a3 b6 d4 e6 d2+ Ke2 g4 Rh2 Ne7 Bg2+ Nec6 Kf1 a2 Ne2 d3 Nc3 Ra5 Bd5 Ka8 b7+ Ka7 Bg2 Na6 b8R Bd7 Bf3 Qg5 Rd8 Qg8 Qe1 d1R Be3 d2 Be4 Nd4 c6 Re5 c7 Bb4 c8R Rb1 Qc1 Rb2 Bc6 Rc2 Qe1 d1R Rb8 Rdd2 Qf2 Rd3 Qg1 Bc5 Rbc8 Nb5 Rb8 Nd6 Rbc8 Qg5 Rg8 Qd8 Rg5 Qg8 Rd1 a1N Rdd2 Nb7 Na2 Be8 Rc7 Ka8 Rd7 Be7 Rd4 Bd7 Ra4 Bb4 Ra3 Qb8 Rd1 Rg2 Rd2 Rf2+ Ke1 Rg8 h8Q Qd8 Qg7 Rh8 Nc3 Qg8 Na2 Re2+ Kf1 Rh4 Qh7 Rg2 Qg7 Rf2+
1Rnb1k1r/r1BQNp2/1p1b1N2/Q5p1/QQ3r1P/3p1P2/3PRb2/1r1n1Kq1 w - - 1 2 legal: proof: g4 c5 e4 a5 b4 d5 g5 a4 g6 cxb4 Nc3 d4 Be2 Be6 Nb1 Bd5 exd5 hxg6 Bf1 g5 Bc4 g4 Bb3 axb3 c4 e5 h4 g5 a4 b6 c5 g3 a5 e4 d6 g2 d7+ Ke7 f3 e3 c6 b2 c7 b3 c8Q e2 a6 d3 a7 Na6 Qc4 Nc5 Rh2 Ne4 Nh3 g1B Nf4 Nc3 Nh5 Bc5 Qb4 Bd6 Nf6 Bg7 Kf2 e1B+ Kf1 Kf8 Re2 Bf2 Qc2 Nd1 Nc3 b1R Ba3 b2 Qca4 Qb8 Ncd5 Ne7 Qaa5 Qe8 d8Q Nc8 Qd7 Qe3 Ne7 Rc1 Ra2 b1R Bb2 Rc6 Be5 Rc4 Ra3 Rf4 Rc3 Rb8 a8Q Rb7 Qaa4 Qd4 Q8a5 Ra7 Rc7 Qe3 Rb7 Qc5 Nfg8 Bf6 Rb8 Bc7 Bd6 Be5 Nf6 Bd8 Bc7 Bd6 Qe6 Qf5 Qed7 Qg4 Qa6 Qg3 Q6a5 Qg1#
1n4BN/3Bk1b1/R1pN1prb/Q1P4K/2P2n1P/1Br1b1Qp/4p1r1/B2q3b w - - 0 1 illegal: No proof kernel
4bk2/N6n/1nrbRNrn/3Qb2p/q3PBR1/3Q2QP/Pnp1pKp1/4Q3 w - - 0 1 illegal: No proof kernel
B1N1Q2B/1bb4K/1r1p3b/PqNnpp1R/4B1B1/4QP1r/4Ppnk/2n2b2 w - - 0 2 legal: proof: g4 a5 b4 axb4 d4 c5 dxc5 h5 a3 hxg4 Nd2 Nf6 Bb2 Nh7 Qb1 Nf6 Qa2 Ng8 c4 Nh6 f3 Rg8 a4 Na6 Qb3 Rh8 Rc1 Ng8 Rc3 Nf6 Rd3 Ng8 Rd5 Nb8 Rh5 Ra5 Rh3 Ra6 Rg3 Ra8 Rg2 g3 Rf2 gxf2+ Kd1 Ra5 Ne4 Ra6 Nd2 Ra8 Kc2 g5 Kd3 b5 Ke4 g4 Kf5 g3 h4 g2 c6 Ra6 a5 Qb6 h5 Nh6+ Kg5 Bb7 c5 Ng4 h6 Ne3 c7 Nc6 c8B Nd4 h7 Bh6+ Kh5 f6 Nh3 g1B Kg6 Bh2 c6 Ng2 Qa2 b3 c7 b4 Ng1 Qb5 Qa4 Rb6 Ba3 b2 Ne4 b1N Bb2 b3 Nh3 Nc3 Nf4 Nd5 Qa3 e6 Bc3 b2 Nd6+ Ke7 Nd3 Nb3 Nc5 Nc1 Be5 Bg3 Rh5 b1B+ Qd3 Ba8 Ba6 Bb7 c8B Ba2 Qe3 Bgf4 Bd4 Bh2 Nc4 Bc7 Bc3 d6 Bd7 Ne1 Bh3 Ng2 Bf5 Bb1 Be4 Bc2 Be5 Ba4 Bf4 e5 Bg4 Qb2 Bg5 Bd7 Bb5 Bdc8 Bc6 Qb5 Be6 Ba6 Ba8 Bab7 Bg8 Bh3 Be6 Qb4 Bg4 Qb5 Bf4 f5 Bg3 Rf8 h8Q Rf6+ Kh7 Rg6 Qe8+ Kf6 Rh4 Rg5 Bf4 Rh5 Nd2 Ne1 Qg8 Bf1 Qe8 Rc6 Nc4 Ng2 Rh2 Ra6 Nb6 Rh4 Nc8 Rb6 Bg3 Rh5 Qd4 Kg5 Bh4+ Kf4 Bf6 Kg3 Bh8 Nh4 Rh1 Kg2 Rh2+ Kg1 Qe3 Ng2 Rh3 Rh4 Rg3 Rh2 Rh3 Rh1 Rh4 Rh3 Rh5 Kh2
1r2kq1Q/R2R4/n1N2r1b/2Pp2r1/B3pK2/2QbPNp1/1p1PQ2Q/1nn2r2 w - - 1 2 illegal: No possible last move, all moves rejected
1nQ1K2k/qp1pb3/6B1/QQ6/r1n1rp1b/nP3nPp/NqQR3P/2BR4 w - - 0 2 illegal: No proof kernel forced: wxLB
BN1nqq1r/1p1P1Np1/b1QRN3/1P4pb/1n2pKP1/Q1b5/1r4b1/RNk5 w - - 0 2 illegal: No possible last move, all moves rejected
2kqb1Rb/1pp1q1q1/2P2pNr/3q2QR/n4K2/Q2BQnP1/PN4p1/1rQ5 w - - 0 1 illegal: No extended proof kernel
7k/qQR5/1pP2bB1/1pp1q2n/RPPQ2p1/n1BQ1Qrr/1n2b3/1n3NK1 w - - 1 2 illegal: No possible last move
1K1n1bb1/bP2r1k1/4pNNp/Q4q2/NRR1Pr1p/6B1/P1QN2p1/bq4n1 w - - 0 1 illegal: No proof kernel
r1qQ4/2pp3k/3BN1n1/1nP4K/RpN3rP/1PQ1b3/1pn1Q1b1/R1nqQ3 w - - 0 2 legal: proof: g4 e5 d4 h5 dxe5 hxg4 b3 f5 Nf3 a5 Ng1 g3 Qd4 a4 Qc3 a3 Bh3 g2 Bg4 fxg4 Qb2 axb2 h4 Kf7 a4 Kg6 e4 b5 Ke2 g3 Kf3 b4 Kg4 Bd6 f4 Rh7 c4 Qf6 f5+ Kf7 a5 g5 c5 Kg7 a6 Qe6 a7 Qe8 e6 Bb7 e7 Qc8 e8Q Ne7 e5 Ng6 e6 Bf4 e7 Nc6 Nf3 g1N Na3 g2 Nc4 Ne2 Nd4 g1N Ra4 Nc3 f6+ Kh6 f7 Nge2 f8Q+ Rg7 Qf5 Kh7 Qc2 Nb5 Kh5 g4 Ne6 g3 Qc3 g2 Re1 Bh6 Bf4 g1Q Rea1 Ncd4 Bd6 Be3 Qd8 Qd1 e8Q Nc2 Qe1 Rb8 a8Q Bg2 Qf3 Nc1 Qfe2 Rg8 Qf6 Ra8 Qed8 Nh8 Qe5 Rg4 Q5c3 Ng6
2R3Kb/1Qpp1p2/6q1/b1P2RRq/Qb1PnP2/B2R3p/1n1rb3/rkNN4 w - - 2 3 legal: proof: h4 b5 a4 e5 axb5 g5 d4 e4 g3 gxh4 Bh3 hxg3 Be6 Nh6 Bc4 Ng8 Bd3 exd3 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 h5 b4 a5 c4 h4 f3 a4 b6 g2 b5 a3 b7 d2 b6 a2 Qa4 d1Q Ba3 Bb4 c5 Nc6 b8R Qf6 b7 Ne5 Nc3 Qg6 Rh3 Nd3 e4+ Kf4 e5 Ke3 e6 Kd2 e7 Nb2 e8Q Nf6+ Ke5 Ne4 Nge2 g1B Nc1 Bh2+ Rg3 Qe2 Nd1 h3 Qe6 Rg8 Qeb3 Ra7 Rb1 a1B Ra8 Ra5 b8R Ba6 Rc8 Rg7 Qd5 Bd3 Qb7 Bc4 Nb3+ Kc2 Ra6 Bb5 Rf6 Ra7 Rf5 Ba6 Kd5 Rg8 Rg1 Be5 f4 Bh8 Rgg5 Rg7 Ke5 Qeh5 Nf2 Bd3 Rd1 Be2 Nc1+ Kb1 Rd2 Nd1 Rd3 Bc3 Rf3 Be1 Rd3 Nb2 Nd1 Ra6 Rf8 Ba5 Rc8 Beb4 Qb3 Qgh7 Rg2 Bb6 Rg6 Bf3 Rg1 Be1 Bb4 Ra1 Qa4 Ba5 Ba3 Beb4 Rg6 Nd2 Kf6 Ne4+ Ke7 Rg8 Rg1 Rg2 Kf8 Rd2 Rgg5 Q7h6+ Kg8 Be2 Rgg3 Qc6 Rgg5 Qcg6+
1R1n4/2q3p1/1n5p/BBnpq2r/1pP2NQP/Q1b1kbPq/1K1n2BB/3R4 w - - 0 1 illegal: No possible last move, all moves rejected
4B2R/pbrr2B1/P3p1p1/1pr1r1Q1/6Q1/1PnP2bQ/n2b3Q/1K1nk1NN w - - 0 1 legal: proof: c4 h5 e4 f5 g4 hxg4 f4 d5 e5 Nh6 a4 dxc4 Ra3 Ng8 Re3 Qd5 Re4 fxe4 f5 Qa5 Ke2 Qa6 Ke1 Qf6 exf6 Rh6 Ne2 Rh7 Ng1 Rh8 h4 Kd7 h5 Kd6 d3 Ke5 Kd2 Kf4 Kc2+ Kg3 f7 Kf2 f6 c5 h6 b5 b3 g6 a5 e3 h7 e2 a6 e1B Kb2 c3+ Ka1 g3 Bh6 e6 Qg4 c2 Qc4 c1R Qg4 c4 Qh3 c3 Qh2+ g2 Qe5 c2 Rh4 Nc6 Ka2 Bb7 Qh2 Bd6 f8Q Bd2 f7 Ke1 Nc3 Nf6 Qe7 Rad8 f8Q Ng4 Nd1 Nf2 Qf5 Bg3 Qeg5 Rd7 Qfg4 Nb4+ Kb2 Rhd8 h8Q Na2 Bg7 Rf8 Be2 Rf5 Bf3 Re5 Bc6 Nc3 Qhh5 Na2 Qgh3 Nc3 Qh5g4 Rc5 Ne2 g1R Rh8 Rf1 Ng1 Re5 Ne3 Rc7 Be8 Nfd1+ Ka3 Rff7 Nf5 Bgf4 Ng3 Rfd7 Nh1 Bg3 Qa4 Rb1 Qd4 c1N Qdg4 N1a2 Q4h5 Ne3 Qh5g4 Rc1 Kb2 Rc2+ Ka1 Rcc5 Q4f4 Ned1 Qfg4 Nd5 Kb1 Rcc7 Qgh6 R2c5 Qhg5 N5c3+
bB1q2k1/2npp1N1/Q3pp2/1B1Pr1N1/B1P2n1n/1BP2K2/b2R1bp1/2Q4r w - - 0 1 illegal: No proof kernel
2N5/1k2qBQp/2b2nN1/1p2p1p1/2rR2Q1/bRrPQ2r/P2nP2p/2K2n1Q w - - 0 1 illegal: No possible last move
1B5q/2bbn2b/R3pbp1/pr5B/B4k1p/Qp2NP1P/rPRnQ3/2K3B1 w - - 1 2 legal: proof: e4 b5 d4 d5 g4 dxe4 a4 c5 d5 f5 Na3 b4 Nb5 fxg4 Nd4 cxd4 Bc4 Qd7 Bf1 Qb5 axb5 Kd7 Bh3 Kd8 Bf1 Ke8 Kd2 Kd7 c4 Kd6 f3 Ke5 d6 h5 b6 h4 h3 b3 c5 g3 b7 e3+ Ke1 e6 d7 d3 d8B e2 Kd2 g2 c6 Bd7 c7 Na6 b8Q Nc5 c8B+ Bd6 Bc7 Kf4 Ra6 Ne7 Rh2 Rh5 Qb5 Rg5 Bb8 Bc7 Qa5 Rf5 Qc2 e1B+ Kd1+ d2 Bb5 Re5 Qa3 Ne4 Ba4 Rb5 Qd3 Bf2 Qe2 Bd4 Bb7 Bf6 Bc6 Bc8 Be8 Bd7 Qf1 Kg5 Ne2 g1Q Nc3 Kf4 Bh5 Qd4 Ke2 Qe5 Nd1 Qd4 Ne3 d1B+ Ke1 Bc2 Qe2 Nd2 Rf2 Bh7 Kd1 g6 Rg2 Nc4+ Bd2 Qe5 Kc1 Qd4 Be1 Nd2 Bf2 Qe5 Bg4 Qh5 Bg1 Qh6 Bh5 Qg7 Qc5 Qh8 Qa3 Rc5+ Qc4+ Bd4 Rb6 a6 Qb4 Rd5 Bc6 Nf1 Rc2 Nd2 Qe2 Ra5 Qc5 Bf6 Bb5 Ra2 Qa3 Ra7 Ba4 a5 Rbc6 Rb7 Ra6 Rb5
8/2PN2qb/B2n2p1/RrQ1Bp2/1Bp2ppb/nrQP4/3B1Pnk/KnN5 w - - 0 1 illegal: No proof kernel
2n1b2q/P1pP1R2/p2bp1Kr/BRP5/4B1pk/1rrQ3p/1QN5/r1nR3R w - - 0 1 illegal: No proof kernel
n1k1b1bR/1nN2np1/3p4/3p1pK1/2p1Q1PP/1N2N2b/3Pqb2/Q1RB1Nr1 w - - 0 1 illegal: No proof kernel
1B2R1qN/2p3q1/nRPQ1pp1/1p5Q/4pq1b/1PP1q1n1/4Rr1K/k2N1bR1 w - - 0 1 illegal: No proof kernel
2k1BNr1/1Npp2pQ/5p1R/pP5b/Q2P1KPp/1r6/1Q4nn/bQ1b1Bq1 w - - 0 2 illegal: No proof kernel
5nrk/4p2p/3nP1R1/2qpP1p1/4pn1r/pB2KN2/R2P2Qb/R1NqRQ2 w - - 0 1 illegal: No proof kernel
1Q2nbRr/1p1R1R1K/pp3p2/1PnRB3/Pb3qb1/5P1N/5p1n/b3QrNk w - - 0 1 illegal: No possible last move
Q3BBb1/pR6/1n1p1Bp1/1B3qpp/qr1Pn1Pb/1k2Kn2/4Q2P/1N1rN2n w - - 0 1 illegal: No proof kernel
3k2N1/PBN1p1n1/5r2/1bKn1b2/P1br4/nP1N3N/1pN2Rbr/1R1B4 w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 b5 d6 Qg4 Nh6 Ba3 Ng8 Bc5 dxc5 Qb4 axb4 Nf3 c4 Nc3 Bh6 Nb1 Be3 Ng1 Ba7 b6 b3 bxa7 b2 Nh3 b5 Bd3 b4 Na3 b1B Be2 b3 Ng1 b2 Bf1 Qd3 Nh3 Qg3 Ng1 Qb3 cxb3 Kd7 Nc2 Kd8 Na3 Ke8 Ke2 h5 Ke3 c5 d4 c3 g4 h3 f4 c2 f6 c1N f7+ Kd7 f8N+ Ke8 d5 h2 g5 c4 Kd4 c3 d6 c2 g6 h4 f5 h3 f6 Ne2+ Kc5 c1R+ Nc2 Rd1 a4 Ba6 g7 Bb5 d7+ Kd8 f7 Nc6 Ng6 Nc3 f8N Na5 Nf4 Nf6 g8B Nc4 Be2 Nh5 Bd5 Rd4 Nh7 Ng7 Bb7 Nd5 Nd3 Na3 Nf6 Rf8 Ng8 Rf6 Bd1 Bc4 Nf3 Rb8 Rg1 h1B Ng5 h2 Nh3 Bg2 Rf1 h1B Rf2 Bf1 Bc6 Bhg2 Bb7 Kc7 d8N Bb5 Ndf4 Bfc4 Nde6+ Kd7 Nc7 Kd8 Nd3 Rc8 Ncb4 Bc2 Rb1 Ra8 Nc1 Bf5 Ncd3 Rc8 Nc2 Rb8 Bc8 Rbb6 Ba6 Rh6 Bb7 Rbf6 Ng1 Rh1 Nh3 Rh2
N3Nr1R/3NN3/1bnbrq1B/1P6/2K3Pn/1P1bqp2/b3Rn1B/N4kr1 w - - 0 1 legal: proof: f4 b5 c4 g5 a4 gxf4 axb5 e5 g3 d5 cxd5 h5 Bh3 f3 Bg2 h4 Qa4 h3 Qd4 hxg2 Qf4 exf4 e4 Kd7 h4 Kd6 d4 a5 Kd2 c5 Kd3 f5 h5 c4+ Kc3 f2 g4 f1B h6 a4 h7 a3 Ne2 g1Q Be3 f3 Ng3 f4 Ra2 f2 Nd2 f3 Nh5 Be6 Bh6 Qf6 Nb3 Ra6 Na1 Nc6 Rh3 Nge7 e5+ Kd7 d6 Nf5 d5 Bd3 Rh1 f1R Rh4 Rg8 h8N Qe3 Ng6 Rg1 Ne7 Rb6 Rh1 Nh4 Rh2 Nd8 Kb4 c3 Rh1 c2 b3 c1N Rb2 a2 Re2 Bef5 Rhh2 Bb1 Kc4 Nc6 Rh3 Nd3 e6+ Ke8 Rh1 Nf2 d7+ Kd8 Rh2 Kc7 d8N Kd6 Rh1 Ke5 d6 Ke4 d7 Qg5 Nf6+ Kf4 Nf7 Kg3 d8B Kg2 Nd6 Kf1 Nd7 Qf6 Ndc8 Bh7 Bc7 Bhd3+ Kd5 Rh8 Bh2 Ra6 Ncb6 Rg8 Nec8 Bd6 e7 Rf8 Na8 Rb6 e8N Ra6 Nc2 a1B Ne7 Bd4 Na1 Rb6 Bg7 Ba2 Bh6 Bc2 Kc4 Ra6 Bg3 Bb6 Bh2 Bd3+ Kd5 Ra4 Bg7 Bd4 Bg3 Nf5 Rh8 Nh4 Bh2 Bb6 Bh6 Re4 Ng6 Bc2 Ne7 Re6 Kc4 Bd3+
R1K1N3/7b/P1p5/bPB2qNp/N3n1q1/1Pr1BR2/2rNq1rn/1rkN4 w - - 0 1 illegal: No possible last move, all moves rejected
1R1K4/2pPRBb1/RPn2p1k/1qNb4/2q2r1N/qRP1R2n/1b1r2q1/6B1 w - - 0 1 legal: proof: b4 b5 e4 a5 f4 h5 a4 Bb7 g4 Bc8 gxh5 d6 e5 dxe5 Qg4 exf4 axb5 f3 b6 Qd7 b5 Qd8 Qb4 axb4 b7 e5 Kf2 g5 Kg3 e4 d4 b3 h4 b2 h6 f6 d5 Kf7 d6 Kg6 d7 f2 Kg4 e3 c3 e2 h7 e1B b6 Qe7 Nf3 Ra4+ Bc4 f1Q Be3 Bg7 Nbd2 b1Q Ne4 Qb5 Rh2 Qd3 Rb2 Bd2 Rb3 Bc1 Bd4 Bb2 Be3 Bf8 h5+ Kg7 h6+ Kg6 Kg3 g4 Kf4 g3 Bc5 Kh5 Kf5 g2 Raa3 Rb4 Ra6 g1Q Bd5 Qgf1 Bg1 Qec5 Ke6 Ne7 Kf7 Ng6 Ke8 Nf4 Kd8 Rg8 h8R Rg2 h7 Nh3 Rg8 Rd2 Nh4 Kh6 Rg3 Qg2 Re3 Rc4 Be6 Qa3 Nc5 Rf4 Bg8 Qdc4 h8R+ Kg5 Rh7 Bh6 Rf7 Bg7 Rfe7 Kh6 Bd5 Nc6+ Ke8 Na7 b8R Bb7 Bf7 Bd5 Kd8 Nc6+
4r1r1/RR4p1/1rN2Bk1/2B3q1/N1PB1pB1/2Pn3r/K3P1rb/1r1rB1n1 w - - 0 1 illegal: No proof kernel
1nr3r1/P3PBR1/1r1BK1q1/1nN2B2/1b3N1p/4Rp2/BPqqBk2/3rn3 w - - 0 1 illegal: No proof kernel
2r4n/r5nb/PRR1R3/p1qr1R2/2N3R1/3P1rB1/2p1P1Bp/KN2r1kq w - - 0 1 illegal: No proof kernel
3B3q/6pB/1PK1R1R1/1Ppb4/1B1p1qnN/NB1kb1r1/1Pr1p3/qn3B2 w - - 0 1 illegal: No proof kernel
1KR1R3/1r3q2/3np1p1/2R1BR1B/1n2bbn1/3k2Pn/P2NNP1n/3Rrb1r w - - 0 1 legal: proof: e4 d5 b4 f5 c4 fxe4 cxd5 h5 b5 h4 b6 h3 g3 axb6 Qe2 b5 Qf3 b4 Qg2 hxg2 Ke2 Kd7 Ke3 Kd6 Kd4 b5 h4 c5+ Ke3 Ke5 h5 c4 h6 g6 d6 b3 h7 c3 d3 e6 d7 b2 Na3 b1B Nh3 g1N Bb2 b4 Be2 b3 Ng5 Na6 Nb5 Qe8 d8R Nh6 Rh2 Nb4 Nh3 Bd6 Bh5 Ra7 Nf4 Rb7 Ne2 Qf7 Re8 Nh3 Nbd4 c2 Nf3+ Kd5 d4 Kc4 d5 c1R Bf6 b2 Be5 Re1 Rf8 Bc2 Rd1 b1N Rh1 Bb8 d6 Nc3 d7 Nb5 d8R Nd6 Rde8 Bd7 Rd5 Bb5 Rf1 Qg8 Rf5 Qf7 Rh1 Ng4+ Kd2 Rg8 h8R Rg7 Rhg8 Rh7 Rc8+ Bc7 Rge8 Bd3 Nc1 Bf1 Ne2 Bc6 Rg1 Nd3 Kc2 Nb4+ Kb2 e3 Ka3 Bb8 Rc5+ Kd3 Nd2 Be4 Ka4 Rh8 Ka5 Rh6 Nd4 e2 Rh1 Rc1 Rg1 e1N Ne2 Nf3 Rh1 Re1 Rg1 Rd7 Kb6 Bc7+ Ka7 Nfh2 Rc6 Bb8+ Ka8 Rb7 Rc5 Bc7 Rh1 Bd8 Rg1 Bg5 Rh1 Bf4 Rg1 Ra7+ Kb8 Rc7 Rh1 Rb7+ Ka8 Bfg2 Nc4 Ng5 Na5 Rb1 Nb3 Nhf3 Nd2 Ra1 Rhc1 Bf1 Re1 Nf6 Bg4 Rh1 Rec1 Nh3 Bh5 Ng4 Re1 Nfh2 Rec1 Re7+ Kb8 Ra7 R1c4 Re1 Rc1 Re7 Rd1 Rb7+
1nb5/k2Npn2/NnPq2nb/B4N2/3qB2p/N3N1RK/Pr5P/n1R1q2r w - - 0 1 legal: proof: e4 a5 d4 f5 f4 c5 b4 cxd4 Qf3 axb4 exf5 g5 f6 Nc6 f5 Nb8 Qf4 gxf4 Kf2 h5 g4 b5 Kg2 d5 c4 Kd7 f7 Kc7 g5 Kb7 c5 f3+ Kg3 b3 g6 d3 f6 f2 g7 b2 c6+ Ka7 Bg5 d2 Bf4 d1N Bd3 f1N+ Kh4 d4 Bc7 b4 Bf5 d3 Ne2 b3 Bg3 d2 Nbc3 b1N Be5 b2 Nf4 Nde3 Be4 d1Q Nh3 Nc2 Nf4 Nba3 Nfd5 b1Q Bc7 Nfe3 Rg1 Ng4 Ba5 Nc4 Ne3 Q8d6 Rg3 N8h6 g8N Q1d4 Kh3 Qe1 Nb1 h4 Na3 Nb6 Rc1 Bg7 f8N Ne5+ Ne6 Ng6 f7 Na1 f8N Nf7 Nh6 Rg8 Nhf5 Bh6 Nd7 Na4 Rg2 Nge5 Bb1 Na6 Nac2 Rb8 Rg5 Rb2 Na3 Nb8 Nec5 Nb6 Na6 Rg7 Rg2 Rg4 Bc2 Ng6 Be4 Rf4 Rg5 Rf1 Rg3 Rh1
1qR1bbqr/1N3P2/1R1Rn1p1/3PrbK1/p1q2B2/Pnk5/n7/RB2nNR1 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 fxg6 Qf3 g5 Qg2 g4 Qg3 hxg3 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 b5 h4 e5+ Ke3 a5 f4 b4 c6 b3 h5 g2 a3 a4 c7 g3 f5 b2 h6 Nc6 c3 Ra5 h7 Nh6 f6 Nb4 f7 Bd7 c8R Nf5+ Kd2 e3+ Ke2 e4 Rb8 Kc4 Nf3 g1Q Rb6 g2 Ne1 Qb8 Nd3 Be8 Nc5 Na2 Nb7 Re5 d5 g6 Rd6 Ng7 Bd2 Kb3 c4 Ne6 c5 Qh2 c6 g1Q+ Bg2 Qc1 c7 Qa8 c8R Qc4+ Kd1 Qf4 Rg1 e2+ Ke1 Qh2 Kf2 e1N Bf4 Nd3+ Ke3 Ndc1 Nd2+ Kc3 Nf1 b1B Bh3 Qb8 Bf5 Nb3 Rb6 Qh4 Rcc6 Qhd8 Rd6 Rg8 h8R Bd3 Kf2 e3+ Kg3 e2 Kg4 e1N Be4 Qdc8 Bf5 Be2+ Kh4 Bg4 Bb1 Bf5 Rh7 Nc7 Kg5 Rh8 Rg7 Qa7 Rg8 Qab8 Rdc6 Qd8+ Rf6 Qdc8 Rfd6 Ne6+ Kf6 Bg7+ Ke7 Bc6 Rgd8 Bh6 Kf6 Bb5 R8d7 Qg8 Rd8 Bf8 Rc8 Nd8 Kg5 Bbd7 Re6 Be8 Red6 Ne6+
4n1bn/1R4r1/1q1bP1pP/3Rp3/2nB3R/1rN1R1b1/4rrPR/NB1b1k1K w - - 0 1 illegal: No proof kernel
1b4KR/2N1n2p/pPR1q1bq/r1BR1n2/Pn1R3p/1N5P/1b1q2r1/1k1BR3 w - - 0 2 illegal: No possible last move
1bb3q1/r1N1kB1r/pP2P3/R5pp/P1Nn1r2/3nB1b1/2q1BBB1/n1R1K3 w - - 0 1 legal: proof: g4 b5 d4 g5 c4 bxc4 h4 e5 dxe5 f6 Qd2 gxh4 g5 Ba3 g6 Bf8 Qg5 fxg5 f4 c5 e4 d5 b4 h5 a4 d4 g7 c3 e6 c2 b5 d3 e7 h3 e5 a6 b6 c4 f5 c3 f6 h2 Kf2 d2 Bg2 d1Q Ne2 Ra7 Nf4 Nc6 Rg1 h1R Nd5 Na5 Na3 Nh6 g8B Nf5 Rb1 Rh4 Nc4 Rh7 Rb5 Nb3 Ra5 Na1 Be3 c1N f7+ Kd7 Rf1 c2 Nc7 Nd4 e8B+ Ke7 e6 Rg4 Bec6 Rf4+ Bcf3 Qe8 Re1 Nd3+ Kf1 Qd2 Rc1 Bg7 Bf2 Be5 Be2 Qd8 Re1 c1B f8B+ Kf6 Bf7 Qc2 Bc5 Qg8 Rd1 Bd6 Re1 Ke7 Rd1 Bd2 Rb1 Be1 Rc1 Nf3 Bce3 Nd4 Na8 Bb8 Nc7 Rg4 Bg1 Bg3 Bgf2 Nc5 Ke1 Rh4 Bh1 Rf4 Bg2 Nd3+
b3kn1n/2bqn3/2BPpK1q/1P3p2/pR3P1B/1r2r1B1/1B3NR1/1B1nNb2 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 h5 Qf3 hxg4 Qb3 dxe4 axb5 Rh4 b6 Rh3 b5 Rh8 Qb4 cxb4 Ke2 g5 Ke3 f5 h4 a5 f4 g3 d4 a4 c4 g4 d5 g2 Kd4 g3 Ke5 b3 b7 e3 c5 e2 h5 e1Q+ Be2 b2 h6 Qd7 Nh3 g1N c6 g2 h7 Qh4 c7 Qh6 Nf2 Nh3 Rg1 Ng5 Nd2 b1B Bb2 Bd3 Nf3 e6 Rab1 Ne7 Bd1 Bf1 Bc2 Ra6 Ne1 Rc6 Be4 Rc3 d6 Rb3 Bc2 Rg8 h8B Nf7+ Kd4 Re3 Bf6 Rgg3 Bh4 Nh8 Be4 Rb3 Ke5 Rge3 Bg3 Neg6+ Kf6 Nc6 b8B Bb7 c8B Ba8 Bc7 Nce7 Rh1 g1N Bd8 Ne2 Rg1 Nc3 Rg2 Nd1 Bcb7 Qh2 Bd3 Bh6 Bc6 Nf8 Rc1 Qh1 Bb1 Qh2 Rc4 Bg7+ Kg5 Bd4 Rb4 Bb6 Kf6 Bc7 Kg7 Nd5+ Be7 Nf7 Bg5 Ne7 Kf6 Qh7 B5h4 Nh8 Bb7 Qh5 Bc6 Qh6#
1R3B2/2q2r1r/4NRRb/8/1q2kpp1/NpR1brPR/nPPnB3/1K1nn3 w - - 1 2 legal: proof: f4 c5 d4 cxd4 a4 h5 f5 b5 g3 b4 f6 h4 Nh3 Ba6 Qd3 Bb5 Ng1 h3 axb5 exf6 Qb3 f5 Qd5 f4 Qg2 hxg2 Kd2 Ke7 h4 Kd6 e4 Ke5 b6 a5 h5 f5 h6 d5 b7 g5 h7 d3 Be2 g4 Na3 b3 Kc3 f3 Rb1 d4+ Kd2 a4 Nb5 f4 Bd1 f2 Nc3 f1R Rh3 a3 Nb5 a2 Nc7 a1Q Bf3 Qa3 Be2 Nc6 b8R Nf6 Ne6 Ra7 Ra1 Bh6 Rc8 Qaf8 Ra6 Nb4 Rc3 Rf3 Kd1 Qd7 Bd2 Qc7 Kc1 Na2+ Kb1 Qb4 Rac6 Rf8 h8R Rf7 Rg8 Rb7 Be3 d2 Rg6 d3 Bc5 d1N Bf8 d2 Rb6 Ne3 Ra6 d1N Rac6 Qca5 Rb6 Rbe7 Rb8 Kd6 e5+ Kd5 Rb6 Ke4 Rbc6 Rf1 Nf3 g1B Nfd4 Rf3 Nb5 Ng2 Na3 Be3 R6c5 Qc7 Ng5+ Kd4 e6 Ne4 Rf5 Rh7 Rff6 Ref7 e7 Qcd6 e8R Qc7 Rc8 Ne1 Rb8 Kd5 Ne6 Nd2+ Ka1 Nc4 Kb1 Ke5 Rg8 Ke4 Rgg6 Nd2+
1N2B1bb/2Kp1bk1/1RpPP3/2Pn3R/pB1b2n1/2B3q1/6rB/n2B1bNb w - - 0 1 legal: proof: b4 e5 f4 exf4 e4 g5 h4 gxh4 a4 Nc6 b5 Bh6 Qe2 Bf8 Qc4 Nb4 Qc6 Rb8 Qa6 bxa6 a5 Rb6 axb6 Nc6 Ra2 Nb8 Ra5 Bh6 Ra1 Bf8 Kf2 f5 Kf3 Kf7 d4 h5 c4 h3 g4 h4 b7 c6 d5 a5 g5 h2 g6+ Kg7 b6 h3 e5 a4 d6 a5 c5 a3 Nc3 a4 Bc4 a2 Rb1 a1B Nd5 Nh6 Nc7 Bd4 Bb3 Na6 b8B Nb4 b7 Nc2 Na6 Na1 Bc7 Qh4 b8B Rg8 Bd1 Ng4 Ba5 Qg3+ Ke2 f3+ Kd3 f2+ Kc4 f1B+ Kb4 f4 Bbc7 f3 Bf4 f2 Nb8 Bca6 Rb3 Kh8 g7+ Kh7 Bd8 Bac4 Bf6 Bf7 Rb2 Bb5 Rb1 f1N e6 Nfe3 B6e5 Bf1 Rb2 Be7 Rb1 Bf6 Rb2 Rh8 g8B+ Kg7 Bh7 Rg8 Bg6 Nf5 Bd2 Nfe3 Bc3 Nd5+ Ka3 Kf8 Rb6 Bh8 Bh5 Rg5 Bb4 Bg8 Bf4 Kg7 Be8 Bd3 Bcd2 Bg6+ Bbc3 B6f7 Be1 Ndf6 Kb4 Nd5+ Ka5 Rg6 Ka6 Rg5 Kb7 Rg6 Bb4 Rg5 Nf3 Rg6 Bec3 Rg5 Rf1 h1B Ng1 h2 Re1 Bf3 Re5 h1B Kc8 Rg6 Rh5 Bfg2 Kb7 Bf1 Kc8 Qd3 Bh2 Qg3 Kd8 Rf6 Kc8 Rf2 Kb7 Rg2 Kc8 Ne7+ Kc7 Nd5+
1RRK2k1/8/2p1brPr/1BR1bR2/r1Nq2pR/qPBp1npn/1NP5/2n5 w - - 0 1 illegal: No proof kernel
2B1N3/1pBB1q1r/R2rp1p1/P2r1R1n/p4nb1/5b1N/1P1KPr2/Bk2r2B w - - 1 2 illegal: Other
B3K1kn/p2p2P1/pp1RR2P/r2b3q/1P4pn/r1Bq3B/2N1N2b/B1B1r3 w - - 0 1 illegal: No proof kernel
2R2qnK/B2n1Npq/1n2BP1r/pp6/2R1R1Nr/1Pp1R2n/k3pRP1/5b2 w - - 0 1 illegal: No possible last move, all moves rejected
rRn1rk2/R1n1pq1p/B3Bp1r/pb2bP1P/3pn3/6BK/P5B1/1Br1N2N w - - 0 1 illegal: Other
N1bbb1R1/1p1nnk2/1rN3R1/2Pr1q2/P1n1NBq1/K3B2P/2B4N/2q5 w - - 0 1 legal: proof: f4 a5 e4 c5 a4 e5 fxe5 h5 g4 f5 d4 cxd4 gxh5 Na6 Qf3 Nb8 b4 axb4 Qa3 bxa3 exf5 Qe7 Be3 Qf6 Bc1 Qd8 Kd2 g5 c4 d5 Kc2 g4 Kb3 g3 f6 g2 e6 a2 h3 d3 h6 d2 f7+ Ke7 h7 d1N c5 d4 Bd3 Bh6 f8N Qd5+ Ka3 Ra6 Bf4 Nd7 Nf3 g1Q Nc3 Qg4 Nh2 Qdf5 Rg1 Bg5 Ne4 Rb6 Bc2 d3 Ng6+ Ke8 e7 d2 Rc1 Nb2 Ne5 d1B Nc6 Kf7 e8N Ne7 Nc7 Rd8 h8B Be2 Na8 Bb5 Bd4 a1Q+ Kb3 Qb1 Ka3 Bf6 Rcd1 Qc1 Bde3 Qf3 Be5 Nb8 Rg2 Nd5 Ne7 Be8 Rf1 Rdd6 Rff2 Nd7 Nc6 Bd8 Bf4 Ne7 Rg8 Rd5 Rfg2 Qfd1 R2g5 Qdg4 R5g6 Nc4+
K5rn/PN6/2R4B/n2Pk1n1/1RBN1r1p/q1n2r2/1P5r/2N1BbNb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Nh3 a5 Ng1 a4 Qb3 a3 Qc2 a2 Na3 Qd7 Nh3 Qd6 Ng1 Qd8 Qd3 Bc5 Qf5 Ba7 b6 Bb7 bxa7 Bc8 Qb1 axb1R Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 h5 d4 f3 e3 h3 g5 h2 g6 f2 g7 c4 Nc2 c3 Ne1 c2 Nd3 Qa5 Ra4 Nc6 Rb4 Nge7 g8N Ba6 Nh6 Rag8 Bd2 c1N Be1 Na2 Nc1 Qa3 Bc4 f1N Nf5+ Kd7 d6 Na5 d5 Ng3+ Ke5 Ne4 Nd4 Ng5 e4 f5 Rb3 f4 Rb4 Kd8 d7 f3 Kd6 f2 e5 f1R e6 Rf4 Kc5 Ng6 Kb6 Ke7 d8B+ Kd6 e7 h4 e8N+ Ke5 Nd6 Nc3 Nb7 Rh6 Kc7 Nh8 Kb8 Rhf6 Ka8 Ra1 Ba2 Bf1 Bc4 Rg7 Be7 Rg8+ Bf8 Rf3 Nd8 R6f4 Bh6 Rg7 Nb7 Rb1 Nge2 Ra1 Rg1 h1B Rg2 Rg6 Ng1 Rg7 Rc2 Rb1 Nce2 Rd1 Nc1 Rd2 Ba2 Rh2 Bb3 Na4 Rc6 Nc3 Bc4 Rg8+
2nb1N2/1qp3BK/B2R1p2/N1R1PnP1/B2p4/B3P1k1/3q1n2/nR1b3q w - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 dxc4 axb5 g5 d5 gxh4 Qd2 Kd7 Qd4 Ke8 b3 exd4 b4 a5 e3 a4 f3 Ra5 bxa5 h5 Ra3 Rh6 Ra2 Re6 Ra1 Re4 fxe4 Qe7 Be2 Qg5 Bf1 Qd8 Kd2 Ke7 g4 Kd6 b6 Ke5 d6 a3 a6 h3 d7 c3+ Kd3 h2 g5 h4 b7 a2 a7 c2 a8B h3 Ba3 c1Q Ne2 Qc5 Nf4 Qe8 d8B Be7 Ne6 Qa5 Nd2 Nd7 b8R Nb6 Rb1 a1N Nb3 Nh6 Bc6 Nf5 Ba4 Qc6 Nf8 Qb7 Be2 Bf6 Rhc1 h1N Rc2 Qb4 Na5 h2 Ra8 Be6 Ra6 Nc8 Rd6 Bb3 Rcc1 Bd1 Be7 Qc6 Rc5+ Qd5 Ne6 Qe1 Bf8 Bd8 Bg7+ f6 Nf8 Qb4 Bf1 Qb7 Kd2 Nf2 Ba6 Bc2 Ke2 h1Q Kd2 Qc1+ Ke2 Qd2+ Kf3 Nh1 Kg4 Nf2+ Kh5 Bd1+ Kg6 Be7 Nh7 Bd8 Rd7 Ke6 e5 Qh1 Rdd5 Nh4+ Kh6 Kf5 Rd6 Kg4 Nf8 Kg3 Kh7 Nf5+
1B1N1k1B/3q2r1/BRqn3q/1r3P1N/r1PbRnnK/P2Nq3/4N3/2q3b1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 exf5 a5 f6 axb4 g3 Nh6 g4 Ng8 f4 h5 g5 b6 Qg4 hxg4 f5 Qc7 Bh3 Kd8 Bf1 Bb7 Be2 Bd5 Bf1 Bf7 g6 Kc8 gxf7 Kb7 Ba6+ Kc6 Bf1 Qd8 Kf2 Kd6 Kg3 g5 h4 e5 c4 d3 h5 b5 h6 e4 a3 d2 h7 d1Q Ra2 b3 Nf3 b2 Nfd2 b4 Rh6 e3 Ra1 b3 Rh2 e2 Rh6 e1N Rh4 Ne7 Nc3 b1R Rh5 b2 Nb3 Nd3 Na5 Qf3+ Kh2 g3+ Kh3 g4+ Kh4 g2 Na4 g1B Rg5 g3 Be2 g2 Rh5 Rg8 h8N Rg7 Bd1 Nc8 Rh6 Nf4 Nc6 Qb6 Nb4 Qfc6 Nc3 Ra4 Bf3 Bd4 Rg6 g1Q Nd3 Qe3 Ne2 Be7 f8N Qa6 Ne5 Bd8 Bg2 B8b6 f7+ Ke7 Nd3 d5 Nh7 Nd7 Nf6 Ne5 Nh5 Nd6 f8B+ Ke8 Be7 Ng4 Bf6 Kf8 Nf7 Nb5 Bd2 Qcb7 Bb4+ Qee7 Ndc1 Bg1 Nd3 d4 Nf2 d3 Bc6 d2 Bd6 d1Q Nc1 Rg8 Bb8 Qdd7 Nfd3 Bbd4 Nd8 Qee8 Bh8 Rg7 Ra2 Qe2 Re6 Qe5 Re7 Qe3 Re4 Qbc7 Bd5 Qh6 Bb7 Nd6 Ne2 Qcc6 Bc8 Rd1 Ba6 b1Q Rc2 Qa1 Rb2 Rb1 Rb7 Rb5 Rb6 Qac1
2Rb1BKN/2r2n2/rn1N3P/n3b1PN/3RB3/1P1Bnn2/1n1B4/n1rk1q2 w - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 axb5 gxf4 e4 c5 g5 Be6 Qg4 hxg4 Kd1 cxd4 Ke1 d3 Bd2 d4 Bc1 Bd5 exd5 Rh4 Nf3 Rh7 Ng1 Rh8 Kd2 Kd7 h4 Kd6 c4 Kc5 b3 Kb4 b6 e5 b7 a5 c5 f5 d6 g3 h5 e4 c6 g2 d7 f3 c7 e3+ Kd1 a4 c8B d2 Kc2 d1R Ra3 e2 Kb2 e1N Rh4 f4 Rg4 f2 Nh3 g1B Ra2 a3+ Ka1 d3 Be2 f1N Rd2 a2 Kb2 a1N Nc3 Nc6 b8N Na5 Rh4 Bh2 Nb5 Be7 Bb7 Nf3 Be4 Nh6 Nd6 Ne3 Rc2 d2 Rc8 Ra6 B2d3 Nf7 h6 Qf8 d8B Rh7 Nd7 Nd5 Ne5 Nb6 Ng6 Rh1 Nh8 d1N+ Ka2 Bf6 Be7 Nb2 Be3 Rc1 Rg4 Qg7 Bf8 Bd8 Bd2+ Qc3 Nf2 Bg3 Nh1 Bh2 Ng3 Rg7 Be3 Qc4 Nh5 Kc3 Ka3 Bg3 Bc5 Kd2 Be3+ Kd1 Bd2 Qb5 Rh4 Qf5 Kb4 Qh3 Rg4 Qf1 Rh4 Ng1 Rg4 f3 Kb5 f2 Rh4 Rb1 Kc5 Be5 Rf4 Nf3 Rg4 N6c4 Kd5 Rc1 Ke6 Rh7 Bb7 Nb6 Rd4 Qg2 Bd5 f1N B5e4 Ne3 Bg7 Bc7 Ke7 Qg1 Kf8 Bd8 Kg8 Qf1 Bf8 N6a4 Rb8 Nb6 Nb5 Nd6 Ra8 Re7 Rc8 Nf7 Nd6 Rec7
1nq1B2N/1bBq1b1P/3bPK2/n2q1b2/6r1/R1N2N1r/3RP3/1nq1R1Nk w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Qd3 f5 Qe4 g3 Qg4 fxg4 Kd2 Kf7 Kd3 Kg6 Ke4 Kh5 Kf5 Kh4 b4 d5+ Kg6 a5 c4 a4 h3 g2 c5 Kg3 c6 a3 h4 a2 c7 d3 b6 d2 b7 d1B b5 d4 h5 d3 h6 d2 b6 Qd7 Nf3 g1Q Rh4 Ra4 Nc3 Qh1 Nd4 Bb3 Ncb5 d1B Nc2 Nf6 Bg2 Nd5 Nc3 Bd6 Ne1 Bdc2+ Be4 Kf2 Rh3 Kg1 Bf4 g3 Nf3+ Kg2 Rb1 a1N Re1 Ba2 Kg5 Nb3 Bg6 Bf5 Be8 Na5 Ng1 g6 Be3 Rh4 Bf4 Rg8 h7 Bc4 Nd1 Nc3 Kf6 Bf7 e6 Nb1 Nc3 g5 Be5 g4 Bf4 Na6 b8R Bb7 Rd8 Nb8 c8N Rh5 Ne7 Qc8 Ng6 Rh6 Rh5 Rg7 Rg5 Rh3 Nh8 Kh2 Rc1 Qd5 Re1 Kh1 Rg6 g2 Rh6 Bf8 Bc7 g3 Rh4 Ba3 Ra4 Bd6 Ra3 Rg4 Rd7 Ba8 Rd8 Qd7 b7 Qc8 Nf3+ g1Q Rd7 Qf1 Ng1 g2 Rd8 Qf4 Rd7 Qc1 Rd8 Nbc6 b8N Bb7 Nd7 Nb8 Ne5 Qcd2 Ngf3+ g1Q Rd7 Qf1 Ng1 Qff4 Nef3 Qc1 Rd8 Qa4 Nh2 Bc5 Rd6 Qad7 Nhf3 Q5c6 Rdd1 Bd6 Rd2 Qd5
3qn2N/nk2q2n/4rP2/R1r2N2/1bNq1q1P/RB2qP2/1n2R1RB/q6K w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 Qg4 b5 axb5 hxg4 e5 Bb7 f4 Bf3 e6 fxe6 gxf3 e5 Be3 e4 Bd2 Qc8 Bc1 Qd8 Kf2 g5 Kg2 e5 b4 d5 c4 Kd7 h4 Kc7 c5 a5 b6+ Kb7 f5 g3 b5 g4 Ra3 e3 Bc4 e2 Be3 e1Q Ra2 d3 Nh3 d4 Rb2 e4 Na3 d2 Be6 d1N Bc1 e3 Nc2 d3 Bb3 a4 Nf2 d2 Rb1 a3 Ne4 a2 Na3 a1Q Rh2 e2 Ng5 Ra6 Nf7 Nc6 Nc4 Na7 Rb2 Rh5 Nh8 Nf6 Rc2 Nh7 f6 Nc3 Ra2 d1N Ra5 Qf2+ Kh1 Nd5 Bf4 Nc7 Rg2 Qfd4 Ra3 Ne8 c6+ Kc8 c7 Bb4 Ra5 Kb7 c8N Rc5 Ne7 Qc1 Nf5 e1Q+ Rg1 Qee5 Rg2 Qee7 Bb8 Qcf4 Ra3 Nb2 Be5 Kc8 b7+ Kd7 b8R Re6 b6 Kc6 b7 Qde3 Rf2 Qed4 Ra8 g2+ Kg1 Qde3 b8R Qed4 Rc8+ Kb7 Bb8 Qfe3 Kh2 Qh6 Re2 g3+ Kh3 g1Q Rg2 Nb5 R8a5 Qge3 Re2 g2 Bh2 g1Q Rc6 Qe1 Kg2 Q1c3 Kh1 Qhf4 Rca6 Na7 Rd6 Qde5 Rdd2 Q5d4 Rc2 Nd1 Rg2 Qa1 Rce2 Nb2+
1bB1rN1B/Rbrr1rP1/7P/5r2/n1q1Rr2/NKB2N1P/r4r2/2k1N2q w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 d4 g5 d5 e5 Qd4 exd4 c5 Nc6 f3 Ne5 c6 dxc6 gxh5 c5 f4 g4 Kd2 Nf3+ Kd1 Ng5 fxg5 c4 Kd2 Bd7 Ke1 Bc8 Kd1 Kd7 Kc2 Kd6 a4 Kc5 e4 b5 h6 f5 e5 c3 g6 d3+ Kb3 Kd4 h3 c5 d6 c2 a5 c4+ Kb2 c3+ Kb3 f4 a6 d2 d7 Ke3 e6 g3 e7 g2 e8N f3 a7 f2 Be2 f1R Bd3 Rf7 Nf6 Qc7 d8B Bb7 Ra5 Ne7 Ra4 Nc8 Bf5 Nb6 Ra5 Bd6 Nh7 Re8 Na3 Na4 Ne2 g1Q Ka2 b3+ Ka1 b4 Ng5 b2+ Ka2 b1R Bf6 Rb2+ Ka1 b3 Bd7 Qc4 Nd4 Bb8 Ndf3 Qgf1 Rh2 Qh1 Re2+ Kd3 Be5 d1R Bh8 Rf1 g7 Rf5 Ng1 R1f4 Bd2 Rf7 Re4 c1R+ Nb1 Kc2 Bc8 Rd7 N5f3 Rf1 Ne1+ Kd1 Ngf3 c2 Bb4 c1R Bc3 Rbf2 Ra6 Rcc2 Na3 b2+ Kb1 Rdf7 Ra5 Rcd2 Ra6 Rdd7 Ra5 Qc6 Ka2 Kc1 Kb3 b1R+ Bb2+ Kd1 Ra6 Ra1 Bc3 Kc1 Ra5 Raa2 Ra6 Bc7 Ra5 Rb8 a8N R4f5 Nb6 Ra8 Bd4 Bb8 Bc3 Ra7 Ra6 Rc7 Nd7 Rf4 Nf8 Rfd7 Rb6 Ra5 Ra6 Raf5 Ra5 Rff7 Ra7 R4f5 Nh2 R2f4 Nhf3 Rff2 Ng6 Qc5 Nf8 Qc4+
1k5q/rq5B/2r1N1K1/B2PbBB1/7n/2PNR1nP/1rbpR1bq/4qR2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 a4 exf4 axb5 Qc7 Bd2 Qb6 Bc1 Qd8 e4 d6 b4 Bh3 d5 Qe7 e5 Qd8 Qd4 Bc8 e6 cxd4 Ra3 Rh6 Re3 Rh8 Re5 dxe5 Kd2 g5 Kd3 a5 Ke4 f5+ Kd3 a4 b6 e4+ Kc4 d3 Kd4 f3 Ke5 f2 b7 f4 Kf5 e3 h6 d2 h7 e2 b5 e1Q b6 a3 h3 a2 c3 a1R Bg2 f1Q Nf3 g4 Rh2 g3 Bb2 Nh6+ Kg6 R1a7 e7 Kd7 Rh1 Nf5 Ba3 Bg7 Nd4 f3 Bb4 f2 Na3 Be5 Nc4 Nc6 Be4 g2 b8B Ng3 b7 g1Q Nb2 Qh2 Ne6 Nd4 Bf5 Nf3 Ba5 Qb5 Nd3 f1B Bd6 Qb4 b8R Bg2 Rf1 Qb7 Bdb4 Rf8 h8R Ra6 Bc5 Rc6 Be3 Ra7 Bg5 Rf7 Rh4 Qh8 Re4 Rh7 Re2 Rh4 Re3 Rb4 Re2 Rb2 e8B+ Kd6 Bf7 Bd7 Rg8 Be8 Rg7 Kd7 Rh7 Kc8 Rh4 Bd7 Bg8 Kb8 Bh7 Be8+ Kh6 Bf7 Rhe4 Bg6 R4e3 Raa6 Bg4 Be4 Bf5 Ra7 Nb4 Bd3 Kg6 Bc2 Nd3 Nh4+
6Rn/B1rr4/3nb2B/1b1PNRnP/2r1k2q/7p/1nPRB1qK/1B1q2N1 w - - 0 1 illegal: No proof kernel
2N1nRrr/Rb2NB1P/2P1Rrq1/5n1K/1P3bB1/q3b1q1/R1b4p/5k1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 fxe5 Bg7 Na3 Bh6 Nb1 Bf8 g4 h6 Bf4 Qb6 Bg3 Qc7 h5 Qd8 Bh4 Be7 Qc1 gxh4 g5 Bc5 g6 Bf8 Qg5 hxg5 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 c4+ Ke4 b4 Ke3 g7 Kf2 e4 f5+ Kh3 a5 b6 d5 h6 a4 b7 d3 h7 g4+ Kh2 d2 e6 d1Q c5 f4 e7 d4 e8R f3 e5 h3 e6 a3 c6 a2 e7 d3 Na3 d2 Ba6 Qa4 Bd3 d1B Bg6 Kf1 Kg3 f2 Kh4 h2 Bc2 g3 Nb5 g2 Nf3+ g1B Be4 Qa3 Nfd4 Nh6 g8B Qc7 Be6 Nd7 b8R Bb7 Nf5 Nf6 Na7 Bg7 Rf8 Ne8 Nc8 Be5 Bf3 Bf4 Kh5 Rg8 Bd5 Qe5 Bg4 Qg7 Rf6 Qg3 Re6 Rh8 Rc1 a1Q Rc2 Qc1 Ra2 Qca3 Be4 Bc2 Bef3 Nc7 e8B Rg8 Nfe7 Nf5 Bf7 Ne8 Rf6 Ke1 Rh6 f1R Re6+ Bge3 Rg1 Kf2 Rg2+ Ke1 Rd2 Rf2 Rd7 Kf1 Rc7 Rd2 Bh1 Rd6 Re5 Rf6 Re6 Ba6 Ra7 Bb7 Nb6 Rh8 Nbc8 Nc7 Nb6 Rd8 Rc8 Rh8 Rd8 Rb8 Rd5 Rbe8 Rd8 Reg8 Rf8 Ne8 Nbc8 Qg6+
5kq1/1br3N1/1bBN1r2/1bNn1b2/r1qP4/1NPp1R1b/PKR2BRb/8 w - - 0 1 legal: proof: g4 a5 d4 c5 b4 cxd4 e3 h5 gxh5 axb4 Qe2 d3 Qd2 Qc7 Qd1 Qd8 Ne2 f5 Ng1 d5 Qf3 d2+ Ke2 d4 Qe4 d3+ Kf3 Nc6 Kg2 Nd4 exd4 fxe4 f4 d1B Kf2 e5 Ke1 g5 Kd2 b5 h4 e3+ Ke1 g4 c3 b3 f5 e2 Kd2 e1R f6 g3 h6 g2 h7 b2 h5 b4 h6 e4 Nh3 g1B Rh2 b3 Rh1 Ne7 Na3 b1B Bg2 b2 Nc4 Bbc2 Ng5 b1B Rh4 Bb3 Rg4 Bh2 Na5 Bb1c2 Ne6 Bf3 Nc5 Bbe6 Nab3 Nd5 f7+ Ke7 Rb1 Bf5 Rb2 Rf1 Rg5 Rg8 h8N Ra4 h7 Rg7 Rg3 B3g4 Rf3 Bh3 Bh1 Bd1 Rc2 Bb7 Bg2 Rg6 Bh1 Rc6 Bg2 Rc7 Bh1 Bg7 f8N Bge5 Nfe6 Qg8 Ng7 Kf8 Nf7 Bf6 h8R Bd8 Nd6 Rf2+ Ke1 e3 Bd2 e2 Be3 Rf1+ Kd2 e1Q+ Kc1 Qe2 Bf2 Qe6 Kb2 Qc8 Rf4 Bh5 Rh6 Be8 Rg6 Bb5 Rg2 Qce6 Nde4 Qc6 Nd6 Qa6 Rf3 Qc6 Na6 Qc4 Nac5 Rf7 Bg3 Bb6 Bf2 Rc7 Re3 Nf6 Rgg3 Bf3 Bg1 Bb7 Bc6 Bg6 Rgg2 Nd5 Reg3 Rf5 Bf2 Rf6 Rf3 Bgf5
3NBq2/rbP5/qB1Bn1rk/B2n1r1r/p1P5/Rq4nP/3NK1R1/n3R3 w - - 0 1 legal: proof: f4 b5 g4 c5 a4 e5 axb5 exf4 b6 h5 Ra4 hxg4 Ra2 Ba6 Ra1 Bc8 b4 Qf6 c4 Qe7 b5 Qd8 Qb3 Bd6 Qa3 Be5 Qb4 Bc3 dxc3 cxb4 e4 Kf8 b7 g5 h3 Kg7 e5 f5 c5 d5 b6 a5 c6 g3 c4 f3 e6 f2+ Kd1 a4 e7 g2 e8R f4 c7 f3 Nd2 d4 Re4 g4 Ba3 b3 Re8 b2 Be7 b1N Ra3 g3 Bf6+ Kh6 Ne2 g1Q Nc3 d3 Re2 g2 Ra2 Nd7 b8B Nc5 b7 Ra7 Ra3 Ne6 Nb3 d2 Nd5 Ne7 Nf4 Nd5 Be5 Qf8 Bd6 Qh2 Re1 g1R Bd3 f1R Bg6 f2 Be8 Rg6 Rg1 Qh1 Ke2 Qg2 Kd3 d1Q+ Nd2 Qb3+ Ke2 Qg5 Rg2 Qgf6 Nd3 Rh7 Ne5 Rh8 Nc6 Rh7 Ra2 Na3 Nd8 Nc2 Ra3 Rh8 Ne4 Na1 Nd2 Ra8 Ba7 Rh7 b8B Bb7 Bac5 Ra7 Bh2 Ng5 Be5 Qa6 Bb4 Ne6 Bg3 Kg7 Bgd6 Rh5 Ba5 Kh6 Bdb4 Rh1 Be7 f1N Bd6 Rg1 Rf2 R1g5 Rg2 Ra8 Ba7 Rf5 Bf2 Ra7 Bfb6 Ng3+
1b4n1/1R1r1pp1/3qPBRq/1R4RP/n2B4/rN3b2/4P1Bk/1r2qKnN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 c4 Ke7 b4 Ke6 h4 Kf5 e6 d5 h5 a5 b6 d3 b7 a4 c5 d2+ Kf2 Kf4 c6 a3 b5 a2 b6 d4 c7 g3+ Kg2 d3 Bb2 Nd7 b8B Bd6 b7 Nc5 Rh3 Ra3 Bf6 Na4 Qe1 d1R Nd2 Rb1 Nb3 d2 Ba7 d1Q b8R Qc1 Bad4 Qf8 Rb5 Bb7+ Nf3 Qe3 c8R Bb8 Rcc5 Qd6 Rg5 Qd2 Kg1 g2 Ne5 Bf3 Rhg3 Qc1 Kf2 g1N Rg6 Qd2 R3g5 Qc1 Ng4 Qd2 Qd1 Qc1 Ke1 Kg3 Nf2+ Kh2 Bg2 Qe3 Kf1 Qd2 Rgc5 Qh6 Qe1 Rb2 Rac1 a1Q R1c3 Qac1 Nh1 Rb1 Rd5 Ne7 Rc2 Rd8 Rc7 Rd7 Rcb7 Ng8 Rdg5 Qxe1#
B1q5/3qPBr1/rP1qPpR1/5rN1/B1n5/bbp2R2/NN1k1NnK/1n6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 fxe5 Na6 b6 Nb8 c4 d6 b5 Bh3 Ba3 Bc8 Bb4 Qg5 Qc1 cxb4 c5 Qf6 c6 Qd8 Qc5 dxc5 Kf2 Ke7 b7 Ke6 e4 a5 g4 h5 Kg2 c4 d4 h3+ Kg3 f6 c7 b3 g5 h4+ Kg4 h2 Kh3 b2 b6 a4 g6 a3 g7 a2 Nd2 c3 Bb5 Nc6 b8N Ra5 Nc4 Rh7 Rf1 a1R Rf3 b1N Na6 Nh6 Nb4 Nf5 Nb2 Ne3 g8B+ Rf7 Rf5 R1a4 Na2 Ba3 Rf3 Bd7 c8B Qc7 Bh7 Rg7 Bb7 Qc8 Bg6 Ra6 Ba8 R4a5 Ba4 Rc5 Rf5 Na5 Rf3 Bc6 Be8 Bd5 Bh5 Rb5 Bg6 Bb3 d5+ Kd7 d6 Ke6 d7 Nac4 Ne2 Rba5 Rg1 Rb5 Rg5 Ng2 Ng3 h1Q+ Kg4 h3 d8N+ Ke7+ Ne6 Qd1 Nh1 h2 Kg3 Qdd7 Nf2 h1Q Bf7 Qhd1 Rg6 Q1d6 Ng5 Qdc5 e6 Kd6 e7 Ke5 Nc1 Kd4 e5 Qcd6 Na2 Rd5 Kh2 Rda5 Rf4+ Ke3 e6 Re5 Rf5 Kd2 Rf3 Rf5+
5B2/n1q1Bb2/b1PR3b/3PB2r/p2n1P2/1n1kNpnn/3N2R1/NK4rB w - - 0 1 illegal: No proof kernel
5R1n/rB1Pr1br/2NNR1qP/7r/pNp1r3/bnP3K1/4NB2/kb1R4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 f5 e4 fxe4 Qf3 exf3 f5 d5 Bc4 d4 Be2 d3 Bxd3 Qd4 Bf1 Qd8 Kf2 Kd7 h4 Kd6 b4 Kd5 d4 g5 h5 a5 f6 c5 b6 e5 f7 e4 b5 c4 b7 e3+ Kg3 e2 b6 e1R h6 f2 Kg2 g3 Na3 g4 Nb5 a4 Rh5+ Qg5 Rb1 Re7 Ra1 Nc6 b8R Raa7 b7 Bg7 f8N Rh7 Ra3 Na5 Ra1 Nb3 Ba3 Bf5 Bc5 Qg6 Nd6 Re4 Rd1 Ne7 Bd3 f1R Nd7 Rfe1 Rf8 R1e3 b8N Re1 Kh1 g2+ Kh2 R1e3 Ne2 g1B+ Kg2 g3 Na6 Bf2 Rhh1 Be1 Bb6 Bb4 Ne5 Bc5 Rhe1 Ba3 Kh1 g2+ Kh2 g1R Nc6 Rg5 Bc5 Qf7 c3 Ng6 Bc2 Rh5+ Kg2 Nh8 Nab4+ Ke6 d5+ Kf6 Rc8 Qg6+ Kf2 Ree7 Be4 Kg5 Bg2 Bb1 Rf8 R3e6 Bh1 Re4 Kg2 Kg4 Bf2 Kg5 Nf7+ Kg4 d6 Kf5+ Kf3 Bc1 d7 Ba3 Bg2 Rd4 Ng3+ Kf6 Nce5 Ke6 Re3 Rg4 Ne2 Kf5 Be1 Rd4 Kf2 Rdh4 Bb7 Rg4 Nec6 Rgh4 Rg3 Ke4 Rg5 Rf4+ Kg3 Ke3 Nd6 Rfh4 Rc1 Rhe4 Bf2+ Kd2 Re1 Qf7 Re5 Qe6 Nd5 Kc2 Ndb4+ Kb2 Rd1 Qf7 Re6 Ka1 Rc1 Qf5 Rd1 Qg6+
2rbq1q1/6bK/4N3/2PRNrRb/Pb3p1n/RB2nR2/1P1p2B1/4kbN1 w - - 0 1 illegal: No proof kernel
NK1qnR2/p3bp2/1RP3R1/k2Pr3/1NB1n1r1/qbP3n1/2bB1R1N/6b1 w - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 c3 e5 Qc2 c4 Qd3 b5 axb5 exf4 Qc2 d5 b3 d4 bxc4 d3 c5 dxc2 Kf2 Kd7 Kf3 Kc7 Ke4 h5 Ke5 h3 d4 h4 g4 f3 e4 h2 c6 Kb6 d5 f2 g5 h3 g6 Bf5 g7 Bg6 Nf3 Rh4 Bd2 c1B Ra2 Rg4 Rg1 h1Q Nh2 Qd7 Na3 Na6 Bc4 f1B Nc2 Nf6 g8R Nc5 Nb4 Be7 Rf8 Re8 Rb2 Ka5 b6 Bd3 b7 Bc2 b8R Bb3 Rb6 Bf5 Rc2 Ba3 Rg2 Qc1 Rf2 Qa1 Rc1 Qa2 Rg1 Bc1 Rgg2 Qa3 Rg3 Rf4 Rg6 Rg4 Be1 Be3 Bd2 Qb7 Rf1 Bg1 Rf2 Bd8+ Kd6 Re5 Rg7 Bh7 Rg6 Qc8 Rg2 Qf5 Rf2 Be7+ Kc7 Ne8+ Kb8 Qe6 Ba6 Qd7 Bc4 Rh5 e5 Ne4 e6 Re5 Nf3 Bd8 e7 h2 Rh8 h1N Rf8 Nhg3 Nh2 N8f6 e8N Be7 Nc7 Ne8 Rh6 Nc5 Re6 Bhc2 Na8 Nce4 Rg6 Qd8+
1K3r1r/1Rq2R1N/p2B1N1b/1PqR1rrP/1kr3q1/7n/B3Np1P/R2b4 w - - 0 1 illegal: No possible last move
3k2qB/2p2q2/P2N1Rq1/1rN5/q1BB1R1r/bp4Pn/P2Kq1n1/1rN1N3 w - - 0 1 legal: proof: c4 e5 b4 a5 bxa5 g5 f4 d5 h3 dxc4 Qc2 e4 Qc3 gxf4 Qf3 Bg4 hxg4 exf3 d4 f5 e4 b5 a6 h5 e5 h4 d5 h3 g5 h2 e6 c3 e7 f2+ Kd1 b4 d6 f3 g3 b3 g6 c2+ Kd2 f4 g7 Rh4 Bd3 f1R Bb2 f2 Nc3 c1Q+ Ke2 Qb1 Bc2 f3+ Kd2 Nf6 g8N Ne4+ Kd3 Nc6 Nce2 Nd4 Nc1 Nf5 Bd4 Ng5 Kd2 Ne3 Bd3 Ng2 Bc4 Qg6 Bh8 Kd7 e8N Nh3 Ngf6+ Kc8 Rb1 Rb8 Ne4 Rb5 Nc5 Re1 Bd4 f1Q Rb2 f2 Nf3 Qd7 Rb1 Qde6 d7+ Kd8 Nd6 Qeg8 Rg1 h1Q Rb2 Re6 Ne1 Qh2 Rh1 Qfg1 Rc2 f1Q Rc3 Qff6 Rf3 Qff7 Rf4 Qf1 Rg1 Qf3 Rf1 Qfg4 Bh8 Re3 Rf6 Q4e4 R1f4 Rf3 Be6 Qa4 Bc4 Rf1 Nde4 Ke7 d8B+ Ke8 Be7 Rg1 Bd6 Kd8 Be5 Bd6 Bd4 Bf8 Nd7 Ba3 Ndc5 Rh1 Nd6 Rf1 Ned3 Rh1 Ne2 Rb1 Nec1 Qg1 Ne1 Qf1 Be3 Qf3 Bd4 Qe2+
5r2/2B3PN/q1n3pB/Rnq2b2/1npR1q2/P1B1b3/2P2bnk/1KNN3N w - - 0 1 legal: proof: e4 a5 f4 e5 b4 axb4 Qf3 b5 Qa3 d5 exd5 e4 Qf3 Ra6 Qe2 Re6 Qd1 Re5 fxe5 g6 g4 Nd7 g5 Nb8 Bh3 Nc6 Bf5 Nb8 Qg4 gxf5 g6 f4 g7 Qd6 Qf5 Qd8 Qg6 hxg6 Kd1 Kd7 d4 f5 h4 c5 d6 Ke6 d7 e3 a3 c4 h5 f3 h6 e2+ Kd2 e1B+ Kd1 f2 h7 f1Q Be3 b3 Kc1 b2+ Kd1 b4 Ne2 b3 Nc1 f4 d5+ Kf5 d6 Kg4 e6 Kg3 e7 f3 e8N f2 Bh6 Na6 Nc3 b1N Rh5 b2 Nf6 Qa5 d8B Ne7 d7 Qc5 Ba5 Nb4 d8B Bf5 Ng4 Nec6 Bdc7+ Bd6 Rg5 Rf8 h8N Bf4 Nf7 Kg2 Rh5 Be3 Ng5 Kg1 Nh7 Kg2 Rg5 Kh1 Ne5 Kh2 Rh5+ Qh3 Rg5 f1N Ned3+ Qg3 Nf2 Qf4 Nh1 B1f2 Rh5+ Bh3 Rd5 Bf5 Rd4 Nbd2 Ra2 b1Q Rb2 Ne4 Rb3 Nd6 Rb2 Na2 Rb5 Qb3 Bb4 Qa4 Ra5 Qab5 Na4 Qbb6 Nb2 Qa6 Bc3 Nab4 Ncd3 Nd2 Kc1 Nf3+ Kb1 Ne1 Nc1 Nb5 Nd1 Ng2
2R5/1PR1r2P/1b3n2/b2KBr1B/1bn3b1/kB1pNpnN/1N1B2P1/1n4b1 w - - 0 1 illegal: No proof kernel
1B1R1nB1/nk5P/3rPq2/1p2Kp1N/1P5n/2R2b2/N2Rbp1B/rn2bB2 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 d4 c5 g4 h5 gxh5 a4 Qb3 d5 cxd5 cxd4 Bd2 axb3 Be3 Ra4 Bc1 Ra8 Kd2 Kd7 Kd3 Kc7 Ke4 b5 a4 g5 h4 f5+ Ke5 b2 e4 g4 h6 d3 h5 d2 d6+ Kb6 a5+ Kb7 h7 d1B d7 f3 h6 g3 a6+ Ka7 Nc3 b1N Ra3 f2 Na2 g2 Rc3 Bb7 Nh3 g1N Nf4 Be2 Nh5 Nf6 Bf4 Bg7 Bh2 Kb6 a7 Nf3+ Kf4 Bd5 e5 Nc6 Rg1 Rg8 h8B Kb7 h7 Nh4 Rh1 Qe7 d8R Nd7 Rg1 Bdf3 Rg6 Na5 Rd6 Nf8 Rd2 Bf6 Bg7 Nc6 Bh8 Rg6 Bg7 Nd7 Bf8 Qf7 Bd6 Nf8 Bc7 Bh8 Bb8 Rd6 Bc7 Rc8 Bb8 Qf6 a8B+ Kb6 e6 Na7 Bc6 Bg7 Be8 Kb7 Bg6 Rcc6 Bf7 Ra6 Nc1 Ra1 Bg8 Qg6 Na2 Bd4 Rdd3 Be3+ Ke5 Bd2 Rd4 Be1 Rd2 Qf6+
3Rrb2/1bn1kqnR/nPP2Rp1/2P1N3/K1p1BR2/2N3B1/r4Bp1/6qn w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 axb5 e5 c4 exf4 g4 hxg4 Qa4 d5 bxc5 Qa5 c6 Qc7 c5 Qd8 Qc4 dxc4 d4 a5 Kd2 f5 Kc3 f3 h4 g6 e4 f2 h5 a4 Kb4 a3 d5 g3 e5 f4 e6 a2 b6 g2 e7 f3 d6 Bb7 h6 Bc8 h7 Qc7 Bd3 f1N Bf4 f2 Nf3 Ng3 Ne5 f1N Be4 Bb7 Nc3 Na6+ Ka4 Nf5 Bg3 Nf6 Rh6 Rg8 h8B Nd5 Rh7 Ng7 Bf2 Ng3 Rf1 Nh1 Bg3 Qd7 Rf6 Ndc7 Rf4 Nge6 Bf6 Ng7 Bfh4 Qf5 Bf2 Qe6 Bhg3 Qd7 Nd3 Qf5 d7+ Kf7 d8R a1Q+ Na2 Qg1 e8R Ra7 Re6 Qf6 Red6 Ke7 Nc3 Qf7 Rdf6 Nb8+ Kb4 Ra2 Ne5 Rh8 Na4 Nba6+ Ka5 Re2 Nc3 Rg8 Ka4 Rh8 Nb5 Ra2+ Na3 Nf5 Bf3 Bg7 Bd5 Re8 Be4 Rc2 Nb1 Bf8 Nc3 Ng7 Rh2 Rb2 Rh7 Ra2+
r6q/r1K4p/2b2PR1/3NB3/Bb1Rqp1k/1b2nRb1/P1pN3P/1NnR4 w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 e5 c3 bxc3 dxe5 Ra5 Qc2 Ra4 Qd1 Ra8 f4 g5 f5 f6 Qd2 Na6 exf6 Nb8 Qf4 gxf4 e5 Bc5 Ne2 Bd6 Ng1 Bf8 Kf2 Kf7 Kf3 c5 Ke4 b5 Kd5 c4 g4 b4 g5 c2 Be2 b3 Nh3 b2 Rf1 c3 Rg1 Nc6 Rd1 Nb4+ Kd4 d5 Nf2 Nd3 Ne4 Bd7 Ned2 Bc6 Bg4 Bb4 e6+ Kf8 f7 Kg7 f8N Nf6 g6 Kh6 g7 Kg5 g8R+ Kh4 e7 Ra7 e8R Qa8 Bh3 Ng4 f6 Ne3 Re4 Qb8 Rg6 Rg8 Na3 b1Q Bb2 Nc1 Ne6 Qa8 Ke5 d4 Bg2 d3 Nc7 Rf8 Nd5 Rh8 Ndc4 d2 Rd4 Qd8 Rf1 d1B Rf3 Qf8 Nd2 Qg7 Ne7 Rha8 Nd5 Qh8 Bf1 Ne2 Bh3 c1B Bd7 Bb3 Ke6 Qd3 Nab1 c2 Bc3 Bb2 Ke5 Nc1 Ke6 Bb7 Ba4 Qe4+ Kd7 B2a3 Kc7 Bc5 Rd3 Bab4 Be5 Bd4 Nc4 Bdc3 Rd4 Be1 Ncd2 Bg3 Na3 Ne2 Rd1 Nc1 Nab1 Bc6+
K7/3P1R2/kp1BBqb1/3N1p1b/1Pbp2R1/3P1nR1/1q3nb1/1bBr1BN1 w - - 0 1 legal: proof: b4 d5 h4 e5 f4 exf4 a4 g5 a5 b6 a6 Bd6 c3 Nd7 Qb3 Rb8 Qd1 gxh4 c4 Rb7 axb7 a5 c5 a4 cxd6 Nb8 Qb3 axb3 Kf2 Kd7 Kf3 Kc6 e4 h5 g4 b2 g5 d4 g6 h3 g7 h2 e5 h4 Ke4 f3 d7 f2 e6 h3 Ra2 Nh6 g8R Ng4 Rg5 Qf6 Na3 b1B+ Bd3 f1B Rf5 Nf2+ Kf4 Rg8 Bc2 Bc4 Nb5 Rg3 Nc3 Rd3 Nd5 Kb5 Ra6 c5 Bb3 Nc6 b8B Ne5 Bd6 Nf3 Ra3 Bb7 e7 Bc6 Ba4+ Ka6 e8B B6b5 Bd1+ Ba4 Rc3 Bac2 Be2 Bd1 Bf1 Bdc2 Ne2 Bd1 Rg1 h1B Rg8 h2 Ng1 Bg2 Rg4 h1B Rb3 Re3 Rc3 Re1 Rb3 Bde2 Re3 Rd1 d3 Nh4 Reg3 Be4 Bf8 Nf3 Be7 Bg2 Bd6 Qh8 Rf6 Bg6 Rf5 f6 Bf7 Qf8 Be6 Qe7 Rh5 f5 Rh7 Qf6 Rg7 Bb5 Rf7 c4 Bc7 c3 Bd6 c2 Bd2 Qh4 Bc1 Ng5 Ke5 Bc4 Bf8 Qh8+ Kd6 Nf3 Kc6 Qh4 Bd6 Qf6 Ba3 c1Q Kc7 Qf4 Kb8 Qd2 Bc1 Qb2 Ka8 Ng5 Re4 Beh5 Reg4 Nf3
6Rq/1PP1pBRN/1Nr2p2/1qB1b1n1/1n1RNP2/R4pn1/1K1qkn2/2n5 w - - 0 1 legal: proof: d4 a5 e4 d5 a4 b5 Bc4 bxa4 Ba2 c5 Bc4 cxd4 Qf3 Ra7 Bf1 d3 Qd1 d4 f4 g5 Kd2 Rd7 Ke1 Rd5 exd5 g4 Qf3 gxf3 g4 Bd7 h3 Bh6 g5 Bg4 hxg4 Bf8 Kd1 Kd7 c4 Kd6 b4 h5 g6 h4 b5 Kc5 g7 h3 b6 h2 d6 d2 Kc2 d1N g5 d3+ Kd2 Kd4 c5 a3 b7 a4 c6 a2 c7 a3 d7 Na6 g6 Nf2 Bh3 Rh6 Bg4 Nf6 g8R Nh7 g7 Rc6 Be6 Qe8 Nh3 Ng5 Nc3 Nb4 Rg1 h1N Na4 Ng3 d8R+ Qd7 Bc4 Ke4 Kc3 d2 Bb2 Ke3 Nb6 d1Q Rg2 Qf5 Rd4 Qb5 Rg1 Qd2+ Kb3 Nfd3 Nf2 Ke2 Rg2 Qf5 Be6 Qb5 Ne4+ Nf2 Bc1 Qe1 Be3 Qd2 Rc1 a1Q Rc3 a2 Bd5 Qh1 Rcd3 Qdd1+ Kb2 a1N Ra3 Qh8 Rc4 Ne6 Bc5 Nh1 Rd4 Nb3 Rg6 Nc1 Rg5 Qh2 Rh8 Ng3 g8N Bg7 Ngf6 Qh7 Re8 Qh8 Nh7 Be5 Rg7 f6 Reg8 Ng5 Bf7 Qd2+
1Rbn1b2/qpq3Nr/4BPB1/PP4R1/1p2rr2/3p4/B2N1kqp/4RB1K w - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 b5 f5 exf5 g6 Qd2 g5 Qb4 axb4 h4 Ra7 f4 Bh6 g4 Kf8 f6 Na6 f5 Ra8 Bf4 gxf4 g5 Nc7 g6 Ne6 Ne2 Ke8 Ng1 Ng5 hxg5 Bf8 Kf2 e5 Kg2 h5 c4 d5 a4 Kd7 g7 Kd6 f7 Kc5 g6 f3+ Kh2 d3 a5 Kd4 c5 Ke3 c6 h4 c7 d2 Ra3+ Kf2 Ra2 d4 Rb2 e4 Ne2 d1Q Nd2 d3 Nd4 e3 Ne6 Ne7 g8B h3 g7 e2 Bh7 e1R g8B Re4 Bg6 Nc6 Ng7 Rh7 f6 Rf4 Rg1 Qd4 Kh1 h2 Rg4 Qc2 Rg5 Nd8 Rb1 Ra6 Re1 Qa7 Rg3 Re6 Rg5 Be7 f8R Ree4 Re8 Bf8 Bd5 Bg4 c8B Qc7 Bce6 Bh3 Bg8 Bd7 Bge6 Bc8 Be2 Ke3 Bb3 f2 Ba2 f1Q+ Rg1 Qf2 Bf1+ Qe2 Rg5 Kf2 Nh5 Qf3+ Bg2 Nf7 Rd8 Bd7 Rb8 Bc8 Ng7 Qh3 Bf1 Nd8 Bg8 Qg4 Bge6 Qg2+
1qr4R/B3p2N/1bB3K1/3bN1P1/1p1b3R/kpNpR1nP/2b1r1Pq/4N3 w - - 0 1 illegal: No proof kernel
7b/B1PP2q1/2NR1p2/N1nq1n1k/1b4pb/RBRb1p2/Rp4P1/5KNr w - - 0 1 legal: proof: f4 e5 a4 exf4 b4 c5 h4 cxb4 Rh3 g5 Rh2 g4 Rh1 Qg5 hxg5 b3 c4 d5 c5 b5 Na3 a5 Nb1 b4 Qc2 Ra7 Qc3 Rb7 Qc4 Rb5 axb5 dxc4 d4 h5 e4 f3 c6 h4 g6 a4 d5 h3 g7 h2 e5 b2 c7 a3 e6 c3 b6 a2 b7 b3 d6 c2 e7 Nd7 b8N Ba6 Bh6 c1B Be3 Nc5 Nh3 Nh6 g8R Bd3 Na3 b1Q Ng1 Qb2 Nc6 Nf5 Nc4 Qg7 N4a5 Bb2 Be2 Bf6 Kf1 Bh4 Rc1 a1B Rc3 Rh7 Rh8 Rh5 Rh6 Bb2 Rc1 Bd4 Rc3 b2 Ra3 Bc3 Re6 f6 d7+ Kf7 e8R Kg6 Rd6 Bb4 Ra8 Rh6 Bd4 Kh5 Ra7 Qh7 Ra6 Bg7 Rc3 Bh8 Bf2 Be4 Bd1 Qg7 Bb3 Rh7 Nb7 Bc2 Ra3 Be4 Nba5 Bd3+ Ne2 Rh6 Rg1 h1Q Bd4 Ne4 Ba7 Nc5 Ra2 Qh2 Ra3 Qe5 Rh1 Bb1 Ng1 Qd5 Nh3 Kg6 Kg1 Bg5 Kf2 Bc2 Rha1 Bd3 Ng1 Rh1 R1a2 Kh5 Ke1 Bb1 Kf2 Bh4+ Kf1 Bd3+
3RRb2/1k4P1/q1pp4/Rpbq2B1/p1p1n3/1P1rNNB1/P6K/2NnNn2 w - - 0 1 legal: proof: d4 d6 c4 Nh6 g4 Ng8 e4 Kd7 f4 Ke8 d5 f5 e5 Kd7 Bd3 Ke8 Be4 fxe4 c5 dxc5 f5 c4 d6 Kd7 Qd3 Ke8 d7+ Kf7 Qd6 exd6 Be3 Ke7 Bh6 Nf6 Bc1 Ng8 h3 b5 Be3 g5 Bf4 a5 Bc1 Kf7 Kf1 Bb7 Ke1 Bd5 f6 Be6 Nd2 Bf5 gxf5 g4 Nb1 g3 Kd2 Ne7 Kd1 Rg8 Kd2 Rg4 hxg4 Ng8 Ke1 Qe7 Ne2 Nc6 Nbc3 Nh6 Rh5 Bg7 Na4 Rh8 Nac3 Qd8 Ng1 Ng8 Rh1 Nb8 Nb1 Bf8 Kf1 h5 Kg2 a4 b3 e3 g5 e2 Nd2 e1Q Ngf3 Ne7 g6+ Kg8 g7 h4 e6 Qd1 Ne1 c6 Ndf3 Na6 Bg5 Ng6 e7 Kf7 e8N Qd5 Nc7 Qa8 d8B h3+ Kg1 g2 Kh2 Nc5 Bf4 Ne4 Bg3 Qd2 Nd5 Ke8 f7+ Kd7 f6 Kc8 Ne3 Ne5 Rc1 Qa6 Rf1 Be7 f8N Kb7 f7 Qd5 Nd7 Bf8 Bg5 Rh4 Rc2 Rh7 Re2 g1B+ Kh1 h2 Nc5+ Kc8 Rff2 Rh3 Ncd3 Kb7 Kg2 h1N Nc1 Nd2 Rf1 Nd3 Rff2 Nc5 Rf1 Be7 f8R Nf2 Rd8 Bf8 Ra8 Nd1 Rff2 Qb6 Ra5 Qa6 Rf1 Rh4 Rff2 Rd4 Kh1 Nce4 Rh2 Ka7 Rh8 Kb7 Rg8 Bf2 Kh2 Rd3 Rh8 Be7 Rd8 Bf8 N3c2 Bc5 Re3 Nf6 Ree8 Nfe4 Ne3 Nf1+
5q1B/R4R1P/1pPp1p2/2pNRnk1/1r2B1n1/2pK3r/r1B2P1B/2qn1N2 w - - 0 1 illegal: No extended proof kernel
1r2NKn1/2PR2N1/bbBnP1R1/1BpB4/r3q1qr/2P1R3/3Bnb1n/6nk w - - 0 1 illegal: No proof kernel
2b2Nb1/NN1B2B1/5RNp/n3Rn1r/1b1R4/n1n2K1P/P1kP2q1/qnr3r1 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Qc2 f5 Qb3 f4 Qf3 gxf3 Kf2 Kd7 g4 Kd6 e4 Ke5 h3 Kd4 d6 f5 g5 c5 g6 b5 e5 c4 d7 b3 g7 b2 e6 c3 e7 c2 e8R b4 Nc3 b1N Bb2 c1N Re1 b3 Bd3 Bb4 Re5 Nh6 g8N Qg5 d8N Nc6 Re8 Na3 Be2 Na5 Rf8 Qg2+ Ke1 f2+ Kd1 f1B Bf3 Kd3 Bd5 f3 Be6 f4 Rb1 f2 Nf3 Nf5 Nb7 Ne2 Nd4 f3 Ncb5 h6 Ba1 b2 Ne7 Rg8 Rf6 Rg4 Rc1 b1N Bd7 Ra6 Rc4 Nec3+ Kc1 Re6 Ng6 Re5 Ne6 Be2 Re1 f1Q Re4 f2 Nef8 Bd1 Bb2 Bb3 Na7 Bg8 Rc4 Qfh1 Rf4 f1R Ba1 Ncb5 Kd1 Rd5 Re4 Rg1 Re5 Rc4 Rf1 N5c3+ Ke1 Qg4 Kf2 Kc2 Rfe1 Rb5 R1e4 Rbc5 Rd4 Qg5 Rdd5 Rh4 Rd4 Rh5 Nh8 Qg7 Nhg6 Qh2+ Kf3 Qg2+ Kf4 Qe7 Rdd5 Nd1 Re4 Qd6+ Be5 Rc6 Re6 Kc1 Rd3 Qd4 Bg7 Qc3 Rdd4 Qa1 Rf6 Kb2 Re5 Rc1 Ne6 Kc2 Nef8 Qh2+ Ke4 Ndc3+ Kf3 Qg2+
n2RrNb1/1P3B2/2bP3N/3b2p1/1qN1NR1r/Rn1r2K1/n1k1b1P1/2bqB3 w - - 0 1 illegal: No proof kernel
rn2Bnn1/2B2KP1/1bRp3k/rq1qRr2/5b2/4Rb1P/NR1P4/3NrBr1 w - - 0 1 illegal: No possible last move
rN1RB2B/RKp2n1k/4Pb2/2b1Pq2/1nPpN1Br/7q/1B1Rbq2/b1b5 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Qd4 g5 Qc3 g4 Qg3 hxg3 e6 b5 a3 Ba6 Kd2 d5 Ke3 g5 Kd4 b3 e4 b4 f4 g2 h4 g3 f5 g4 f6 b2 h5 b3 c3 Be7 f7+ Kf8 h6 Bf6+ Kc5 Nc6 e5 Nb4 h7 Kg7 f8R Nh6 Rh2 Nf7 Ne2 g1B+ Nd4 g2 Be2 g3 Bg4 Be3 Nd2 g1B Re8 Bd3 c4 b1Q Kb5 g2 Nc6 b2 Nb8 Qa2 a4 b1Q a5 Qab3 Bb2 Bh6 Ra4 Bc5 Ra1 Qf1 Ne4 Qf5 Ra3 Qd6 Rd8 Bc1 Ra4 Bf1 Ra2 Qh3 a6 Ra7 Bc3 g1B Rhd2 Be2 Ka5 Rb7 a7 Bgd4 a8B Ra7+ Kb5 Qd7+ Bc6 Ra8 Ra7 Qd6 Be8 Kh6 Bb2 Kg6 Ba3 Ba1 Ng5 Qc6+ Ka5 d4 Bb2 Qcg2 Ne4 Qgf2 Kb5 Nd5 Kc6 Nb4+ Kb7 Rg8 h8B Kh6 Bh5 Kh7 Bf3 Rg5 Bg4 Rh5 Bc6 Rh6 Be8 Rh4
2rBb1br/1B2P3/1N2Rq1p/pn6/1k1Nn1RR/2q1P2b/P1K1b2b/4Nq1R w - - 0 1 illegal: No possible last move, all moves rejected
n2R3r/2NPKPp1/R5bR/1N3Bb1/2b4b/2N1p2n/1q1brNP1/B2rq1k1 w - - 0 1 illegal: No possible last move, all moves rejected
1k1q1K2/q3r2R/2Bb1B2/1b1P1q2/1rN3n1/pB2R1bp/NnNN1P1P/r3b3 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 f5 a4 fxg4 axb5 d5 Qd3 dxc4 d5 Bf5 Qd1 Bc8 Qd4 exd4 Kd2 Kd7 e4 g5 b4 h5 b6 a5 b5 c5 e5 d3 Ke3 d2 Ke4 d1Q Kf5 a4 Kg6 c3 Kf7 c4 b7 Kc7 e6 h4 e7 g3 e8B g2 Bd7 a3 Bd3 g4 Be4 c2 Bg5 c1B Nf3 g1Q Nfd2 h3 Be7 c3 Nc4 g3 Ne3 c2 Bh4 g2 Bg5 Rh4 Be7 Qd4 Nc4 Na6 b8N Ra7 Be8 Bf4 Bf6 c1B Nbd2 Nc5 Rb1 B8d6 Nc6 Bg3 Bc2 Ba6 Bb3 Nd3 Nb4 Nb2 b6+ Kb8+ b7 Bb5 Bc6 Nh6+ Kg7 Qe3 Na2 Ng4 Kf7 Qd1 Re1 g1R Re2 Qd4 Re3 Qc2 Kg7 Qf5 Kf7 Kc7 b8N Rb7 Kg7 Qa7 Na6+ Kc8+ Re7 Rf1 N6b4 Kb8 Rf7 Re7 Nc2 Qda5 Kf8 Qd8+ Be8 Rh1 Rh7 Rhe1 Ne4 Be3 Ned2 Bd4 Ra1 Bc3 Rc1 Rh1 Re1 Bcb4 Re3 Ra1 Nf3 Be1 Nfd2 Nh6 Na5 Rb4 Nac4 Qda5 Bd7 Ng4 Bc6 Qd8+
N5b1/2n3B1/R1r1Bb1N/BPn2nNp/1n1k2p1/1P1q2P1/1K1qB1br/3R1r2 w - - 0 1 illegal: No proof kernel
1N2B2k/rP1r1R2/2P4q/2b1nBN1/p3bnbB/P2p4/n1R2BR1/1q1q1K1b w - - 0 1 illegal: No possible last move, all moves rejected
2n3rq/Rqq1Np2/1kBb4/4PP1R/1r1rn3/1B3Rp1/2K1b1qP/b1B3NR w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 Qd3 exd3 d6 cxd6 Nd2 d5 Nb1 d4 Kd1 a5 f4 d5 e4 Kd7 c4 Kc7 b4 g5 f5 g3 c5 a4 e5 g4 c6 a3 Bd2 g2 Be2 g3 Bf1 a2 Bh6 d2 Bg5 Ba6 Kc2 d1Q+ Kb2 d3 Nh3 g1Q Bd2 d4 Bc1 d2 Bc4 d3 Nc3 Bd6 Bb3 Qg2 Ng1 Kb6 c7 Qdf3 c8B Nc6 Bb7 Nce7 Bc6 Nc8 Nd5+ Ka7 Bd1 Rh4 Ne7 Nf6 Bb3 d1R+ Kc3 d2+ Kc2 Qh8 b6+ Kb8 b5 Ne4 b7 Kc7 b8R Rf4 Rb1 a1B Rb2 Rg4 Ra2 Rg8 Ra4 Ra7 Ra3 Rb7 Ra8 Kb6 Ra7 Qe3 Bc4 Qc5 Rf3 Qd5 Bb3 Rb8 Bd7 Qb7 Be8 Kc5 b6 Be2 Bc6 Qc7 b7 Kb6 Ra2 Re1 Ra7 d1Q+ Kb1 Qd5 Kc2 Rd1 Be3+ Rd4 Bc1 Ra8 b8R+ Kc5 Rab7 Raa4 Ra7 Rab4 Rba8 Nb6 Re8 Nc8 Rf8 Kb6 Re8 Rg6 Rg8 Rg4 Rg5 Qb5 Rh5 Rg8 Rg5 Qa6 Rh5 Qab7
4BB1r/1b2b2p/p2Bq1R1/1nK1R2R/6PP/1rk1qb2/4PnN1/1nNqR1n1 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra5 e5 Qd3 e4 Qf3 exf3 Ra3 Ne7 Ra1 Ng8 Kf2 Ke7 b4 Kf6 h4 Ke5 g4 f5 c4 d5 b6 a6 c5 d3 b7 Kd4 b5 d2 b6 d1Q c6 Qf6 c7 Qb3 Rh3 Be7 Ra5 Nc6 b8R Bb7 c8R Qe3+ Ke1 f2+ Kd1 f3 Kc2 f4 Nc3 Qfe6 Kb3 Nf6 Bg2 f1B Bh1 f2 Rg3 f3 Nh3 Ne4 Ba3 Bg2 Nf4 f1N Rg8 f2 Rg6 Bf3 Rg1 Nh2 Re1 f1N Re8 Na7 Ng2 Rb8 Ka4 Nf2 Na2 Kc4 Nc1 d4 Rh5 d3 Bd6 Kd4 Kb4 d2 Bc5+ Ke4 Bd6 d1Q Bc5 Nb5 Bd6 Bd5 b7 Nd2 Bc5 Nb1 Bd6 Rc8 b8B Rc3 Ba7 Bb7 Bac5 Bd8 Bf8 Be7 Bd6 Kd4 Rc8 Qa2 Rcc5 Qae6 Rce5 Rb3+ Ka5 Qh6 Kb6 Kc3 Kc5 Bfe4 Nf4 Nf3 Bg2 Ng1 Bf3 Ba8 Ng2 Beb7 Bc6 Qhd2 Bd7 Bf3 Bc6 Bb7 Be8 Qe3+
1nn3b1/1rR3Pq/kb1qB1R1/1n4p1/pP2r1N1/1q6/Bb1B2P1/1BKNN2n w - - 0 1 illegal: No proof kernel
R2N1b2/1bKB2nn/rp4rq/4pBB1/r2NrrP1/RBP2bk1/4P1N1/6r1 w - - 0 1 legal: proof: g4 a5 d4 h5 b4 axb4 d5 h4 d6 cxd6 Qd3 d5 f4 g5 fxg5 d4 Qg3 hxg3 Kd2 e5 Kd3 Ke7 Ke4 f5+ Kd5 b6 h4 g2 a4 b3 c3 b2 a5 d3 a6 d2 g6 Kf6 a7 d1R+ Nd2 b1B h5 Kg5 g7 Kf4 h6 Nc6 h7 Qf6 Nf3 g1R Rh6 Nce7+ Kc4 d5+ Kb5 d4 Nc4+ Kg3 Ng5 d3 Ne6 d2 Bg2 f4 Ra5 f3 Ra3 f2 Ne3 f1R Be4 Nf5 Kc6 Bb7+ Kc7 Rf4 Ng2 Bc2 Rh5 Qh6 Nd4 Nf6 g8B Ng7 Bf5 Bce4 Bb3 Rg8 h8N Nh7 Nf7 Bf3 Nd8 Rde1 Bd7 d1R Bd2 Re4 Bg5 Ra1 Rh2 Ref1 Rh4 Rb8 a8B Ra2 N8c6 Re8 Nd8 Re6 Rh5 Rfa1 Rh4 Rf6 Rh5 Rff4 Bf5 Bc8 Bc6 Ba6 Bcd7 Bb7 Ra8 Ra6 Rh1 Rgc1 Rd1 R1a4 Rd2 Rg1 Ra2 Nh5 Ra1 Rg6 Ra3 Ng7
N1br2n1/2b2Pn1/1bBp4/Bp4BB/4r2N/n1Pn2R1/KP2n1qR/3k2bN w - - 0 1 illegal: No proof kernel
4nq1n/BNNpbpP1/K1BP1P1R/r1B3B1/2br1b1n/1R6/2N1r3/b4kn1 w - - 1 2 legal: proof: b4 b5 h4 g5 a4 gxh4 c3 Nc6 Qb3 Nd4 axb5 Nxe2 b6 c6 b5 c5 Qb4 cxb4 f4 e5 d4 Ke7 Kd2 Kd6 Kd3 Kd5 g4 h5 b7 a5 b8B h3 g5 h4 b6 e4+ Ke3 Kc4 b7 a4 f5 a3 g6 a2 d5 h2 g7 b3 d6 h3 Ba3 b2 Bc7 Rh4 b8B Ba6 Bc5 Nf6 Bb4 Ne8 f6 Be7 Bg2 Nf4 Ne2 Ng6 Ng3 Nh8 Ba7 Rb8 Ba3 Rb5 Bcb6 Re5 Ke2 e3 Bc6 Rd4 Bac5 Re6 Ne4 Re5 Rf1 h1N Rf3 h2 Rg3 Nf2 Na3+ Kb3+ c4 h1N Ba5 b1R Nc2 Nh3 Bd2 Rb2 Rb1 a1B Rg6 Rh5 Rh6 Ng3+ Kf3 e2 Bg5 e1B Ke3 Nf5+ Ke2 Nh4 Ke3 Rd1 Ke2 Bd2 Kd3 Bb5 Kd4 Ka4 Kd5 Ra2 Rb3 Rb2 Kd4 Ng1 Kd5 Ka5 Kd4 Bc1+ Kc3 Ka6 Kb4 Rd4 Bcb6 Rb1 Bd5 Nhf3 Rb2 Nc7 Kc5 Qf8 Kb4 Rd2 c5 Ne8 c6 Rhh2 c7 Nh4 c8N Rd4+ Kc5 Bf4 Bc6 Bd8 Ne7 Bd3 Nd5 Be7 Bd8 Rg2 Rb6+ Ka5 Bc7 Re2 Rb5+ Ka4 Kb6 Bc4 Ka6 Rb4 Ba5 Kb3 B5b6 Kb2 Nc7 Kc1 Nc5 Kd1 Nb7 Rb1 Ne3+ Ke1 Nc2+ Kf1 Bc5 Bd5 Ra5 Rb5 Ra3 Bc4 Rb3 Ra5+
nR3b1R/1nRb1N1B/1P1p1n1r/N7/Rr2p2P/1q1k4/B2PbBb1/r1r4K w - - 0 1 illegal: No proof kernel
N4n2/1nnb2q1/p2bB1B1/k1bn2rR/P2Pq3/1r5K/R1P1p2b/1NB2BN1 w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g5 Qf3 gxf4 g5 Qd5 Qd1 Qd8 Qg4 hxg4 Kf2 Kd7 Kg2 Kc6 a4 f5 h4 b5 d4 e5 g6 b4 g7 b3 h5 b2 h6 g3 h7 e3 Nc3 b1Q Nd5 e2 Rh6+ Qf6 Ra2 e1B Bc4 a6 Bd3 e4 Bd2 e3 Rb2 e2 Rb4 f3+ Kh3 f2 Nf4 f1N Rb7 g2 Be3 Ne7 g8B Bg3 Bf2 Nd5 Rf7 Nd2 Rd7 Nc7 Be3 Qb7 Bdc4 Ne4 Rd8 Bd7 Bcf7 Nd6 Ne6 f4 Rh5 f3 Bc1 f2 Bg6 f1N B8f7 Rg8 h8N Rg7 Bg8 Qg5 Nf7 Ne3 Re8 Qe5 Ng5 Ned5 N5f3 Qe4 Nd2 Qa7 B8f7 Nb7 Nb1 Bfd6 Rc8 Be1 Bg8 Bb4 Rf8 Ba3 Rf3 Bb4 Rb3 Ba3 Rb2 Bb4 Bf5 Rg5 Bg6 Ba3 Ra2 Bb4 Nf3 g1B B8f7 Bgh2 Ng1 Be8 Bg8 Nd7 B8f7 Nf8 Bg8 Nb5 Nc7 Rb8 Be6 Bd7 Na8 Qb6 Nd2 Qd8 Nb1 Qf6 Nb6 Kc7 c6 Qg7 Na8+ Kd8 Bgf5 Bbc5 Bg6 Nbc7 Bg4 Nce6 Bf3 Kc8 Bg2 Kd8 Bf1 Kc8 Nb6+ Kc7 Na8+ Kd8 c7+ Kc8 Rh8 Nbd8 Nd2 Kb7 Rh4 Kc6 Nb1 Rb3+ Be3 Nb7 Rh5 Be8 c8B Nec7 Bcf5 Bd7 Be6 Ne8 Nc7 Kb6 Na8+ Ka5 Nc3 Nec7 Bc1 Rb5 Nb1 Rb3+
nR1b1Rb1/3p4/1K2n1BN/n3b2q/6n1/qp1P1n1P/kP2BNN1/Bn3rB1 w - - 0 1 illegal: Other
2r2q1N/1N1qb1Kn/P4Rb1/BN1Rq1r1/p4pp1/2B2NP1/4bP2/n1Rr3k w - - 1 2 illegal: No proof kernel
1R1rB3/2pn1rb1/RqPb1N1r/nb1B1bBN/1pP4P/p4bK1/1kB5/6R1 w - - 0 1 illegal: No proof kernel
5K1B/1r2p1P1/2p5/NB1b4/bn3bB1/nP1bP1Br/R5pr/RRNbq1k1 w - - 0 1 illegal: No proof kernel
qNNNk1n1/2B1B1p1/1pp3nb/rb3P1b/2P5/3br2b/R2B2P1/R1K2N1r w - - 0 2 illegal: No proof kernel
1Bbqn2R/rpp3Rp/3PBK2/nrn4P/1R1R2BN/2kP2qN/4n2b/2n5 w - - 0 1 illegal: No possible last move
1n2q1b1/1p3pB1/kNrNBbN1/2RR4/nr1p3B/4qP1P/r2P1q1r/3K2N1 w - - 0 2 legal: proof: g4 a5 b4 axb4 c4 bxc3 f3 h5 gxh5 e5 Qb3 e4 Qb6 e3 Kd1 Ra7 Qd4 Ra6 Qh4 Ra8 Qf2 exf2 e4 d5 a4 Kd7 e5 Kc6 e6 Kb6 h6 c5 h7 g5 e7 c2+ Ke2 g4 e8N d4 a5+ Ka6 Bg2 c4 Bb2 c1R Bh3 c3 Nf6 c2 Na3 g3 Nc4 g2 Nd5 Bg7 Be6 Bf6 Nd6 Rb1 Ba3 c1R Nf4 Qe8 Ng6 Rc6 Ra2 Rb2 Kd1 Rb4 Rc2 Ne7 Rc5 Bd7 Rd5 Nc8 Rc5 Nb6 h3 Rg8 h8B Na4 Rd5 Bc8 Bg7 Bd7 Ne2 Ra7 Re1 f1Q Ng1 Qf2 Ree5 Ra8 Rc5 Ra7 Ba2 Bg4 Be6 Bf5 Red5 Ra8 Nf4 Bh7 Ng6 Ka7 a6 Kb6 a7 Ka6 Ne2 g1Q+ Kc2 Qg5 Ng1 Qge3 Kd1 Rbb6 Bb4 Rb5 Ba5 Rb4 Bd8 Be5 Bh4 Bf6 Bh8 Rg7 Nf8 Rg2 Bg7 Bg8 Ng6 Rh2 Ne7 Nd7 Ng6 Rd8 a8N Nb8 Nb6 Rdc8 Rb5 Rc2 Rbc5 Rc6 Re5 Rcb2 Red5 Ra2
2BKb2r/p3p1B1/3pr2b/Rn1Nr3/1q3B1B/n1P4k/3P1PnN/1nR2N1q w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 g5 Qg4 gxh4 axb5 Bb7 b6 Ba6 b5 Bc8 Qf4 fxe4 Qd6 Bb7 Qd4 Bc8 Qb4 cxb4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kg4 b7 h5 g3 h3 b6 e3 c3 h2 Nf3 h4 Bc4 h3 Na3 e2 Nc2 e1N Ra5 b3 Ba3 b2 Ba6 Nc6 b8B b1N b7 Ng2 Bf4 Nf6 b8B Bh6 Rc1 h1Q Bbe5 h2 Ne3+ Kh3 g4 Rb8 g5 Ne8 g6 Nd6 g7 Nb5 g8N Rb6 Bg7 Nb4 Nf6 Re6 Nfd5 Nc2 Nf1 d6+ Kc6 Qg8 Bc5 Nca3 Bce3 Bd7+ Kb7 Be8 Kc8 Qh7 Kd8 Qe4 Bc8 Qb4 Bg3 Qg1 Bg5 h1R B3f4 Qh2 B5f6 Rg1 Bh4 Qh1 Nfe3 Re1 Nf1 Re3 N3h2 Re5
RRB1b1BN/1n1b3P/2q3p1/3B4/nBpKn1b1/2P1R3/1N1kP1pb/2nrr3 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Qd4 g5 Qc3 g4 Qg3 hxg3 Kd2 Ke7 Kd3 Ke6 h4 Kd5 f4 c5 a4 b5 f5 g2 a5 g6 f6 b3 a6 b2 f7 b4 e6 c4+ Ke3 b3 e7 g3 e8B Qf6 a7 Qc6 h5 Bd6 f8R Nf6 h6 Ne4 h7 Na6 Nf3 g1N Ra5+ Nac5 Rh4 Nh3 Rf6 Nhf2 Rh6 Nd3 Ra4 Nb7 Na3 b1N Bh3 g2 Bf5 b2 Bg4 Nbc3 Bd2 b1B Ne1 Nc1 Rf8 Bh2 Nd3 d6 Rh3 Bd7 Ra6 Na4 Nb2 Kc5 Rg3 d5 Nb5 Rg8 Bf7 d4+ Kf4 d3 Ke5 Rh8 Rb8 Rd8 Nd6 Be8 Be1 d2 Bg8 Kb4 Nf7 Rd3 Be6 Kc3 Bc8 Bd7 Nh8 Bg4 Bf2 d1B Bc5 Kd2 c3 Nb6 Ba3 Qe6+ Kf4 Bbc2 Bf7 Ke1 Bd7 Ba4 Rg8 Rf8 Bb4 Rd5 Ke3 Qe8 Bfe6 Rf1 Bf7 Qe6 Rb8 Qf6 Bc8 Be8 Rh3 Bda4 Bg8 Rd1 Ra5 Bad7 a8B Nd8 Ra7 Na4 Bad5 Nb7 Raa8 Qc6 Rf3 Nd3 Kd4 Kd2 Rg3 Rfe1 Re3 Nc1
1KbrB3/RN1P1pp1/3R3R/1k4rN/n3n1p1/1b1p2N1/P2N1P1B/b1n2qr1 w - - 0 1 legal: proof: d4 a5 c4 e5 g4 d5 b4 axb4 cxd5 h5 d6 hxg4 d5 Qf6 Qd2 Qd8 Qd4 exd4 Kd2 Kd7 Kd3 c5 Ke4 b5 Ke5 b3 e4 b4 h4 c4 h5 c3 h6 c2 h7 b2 Bf4 c1R Rh6 b3 Bh2 Nf6 Nd2 b1N Ne2 b2 Ng3 Be7 Be2 Rf8 h8R Na6 Bc4 Nb4 Bb5+ Rc6 Rg8 Nc3 Rd1 b1B Rgh8 Qe8 Rg8 Ra5 Rgh8 Kd8 d7 Kc7 d8N Kb6 d6 Na4 Nb7 Rc1 Rg8 Qd7 Rgh8 Rd8 Re8 Bf8 Re7 Qc7 Rd7 Qc4 Re7 Qf1 Rc7 Ra8 Be8 Be7 Rd7 Bc2 Rc7 Nh7 Rd7 Nd3+ Kd5 Qe1 e5 Bf6 e6 Ng5 e7 Ne4 Rc7 Ka6 Kc6 Qf1 Rd7 Ra7 Kc7 Bb3+ Kb8 Kb6 Nc5 Ra5 Ra7 Rb1 Nb7 Rc5 Bc6 Rb5 e8N Nc1 Bd7 Be5 Nf6 Rd5 Nfh5 d3 Be8 Bc3 d7+ Kb5 Re1 Rg5 Re3 Ba1 Rf3 Ne2 Rff6 Re1 Rd6 Nc1 Nc4 Qh1 Nd2 Rg1 Rde6 Qg2 Rd6 Qf1
1R1B1b1r/1BRNb2N/4q1p1/PK1pnk2/2r1p3/r2pP1n1/BB3P2/4N1rb w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 Qd3 axb4 Qe4 f5 gxf5 h5 Qg4 hxg4 h3 Kf7 Kd2 Kf6 Kd3 e5 Kc4 d6 a4 g6 e3 g3 Nc3 g2 Nf3 g1B Rb1 b3 a5 b5+ Kb4 b2 Na4 Bb7 c4 Qe7 c5 Nh6 c6 Bg7 c7 Qe6 c8B Bh2 Nc5 Nd7 Bc4 d3 Ba2 Bc6 Ba6 Rac8 Re1 Ba8 Re2 Be4 Rc2 d5 Rc4 Bf4 Rc2 Bg5 h4 Rhd8 h5 Rh8 Nd2 Bh1 Nf3 e4 Rc3 Ne5 Nd7+ Kf7 f6 Nf5 Rc2 Ng3 h6 Rhf8 h7 Rh8 Rc6 Bh4 Kc5 b4 Kb6 b3 Kc5 Ke8 f7+ Ke7 f8N Kf7 Kb4 Be7+ Ka4 Rb8 Rc7 Rd8 Rb7 Rc8 Rb8 Bh6 Bb7 Rc2 Ra1 b1R Kb5 Bg7 Ba3 b2 Bc5 Bh6 Bb6 Rg1 Bd8 Rc3 Ne1 Ra3 Rc1 b1R+ Bb3 Rba1 Rc7 Rc1 Ba2 Bg7 Nb6 Kf6 Nbd7+ Kf5 Nf3 Rg8 Ne1 Rc4 h8B Ng4 Nh7 Bgf8 Bc3 Ne5 Bb2 Rh8
1R2n3/K4bRB/1B2bp1P/1P3R2/pb1n2B1/Pp1b2n1/rR2p1r1/1qN1k2N w - - 0 1 illegal: No proof kernel
BKB1q2B/2Rr1pr1/2n1pP2/1bpP1B2/4br1n/4rknp/2PR1NN1/5R2 w - - 1 2 legal: proof: e4 g5 b4 d5 f4 dxe4 h4 a5 g4 axb4 f5 Ra3 Qf3 Rc3 Qf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ra3 Bg2 Ra4 Bf1 Ra8 Ke2 Kd7 d4 Kd6 a4 Kd5 f6 c5 a5 h5 a6 b5 g7 h4 g6 b3 a7 b4 Be3 b2 Nh3 e6 Na3 b1N Rh2 b3 Bd2 b2 Ng5 e3 Kd3 f3 Nh3 e2 Nf2 e1R Bh6 h3 Nc4 Ne7 g8B Bb7 g7 Qe8 Bh7 Rg8 Bf5 Nd2 Rb1 Ne4 Ne3+ Kc6 Kc4 Ng3 Ng2 Re3 B1d3 Ng6 Rf1 b1R Be2 Nh4 Bed3 Rf8 g8R Rd1 Bg7 Rd2 Rh8 Rg8 Bde4+ Kd6 Bc6 Rdd3 Bd7 Be4 Kb5 Kd5 Kb6 Nc6 Kb7 Rd8 Bc8 Rd7+ Ka6 Rc3 a8B Rc4 Kb6 Kd6 d5 Ke5 Rh6 Ra4 Bh8 Rg7 Rg6 Rd4 Rg4 Ra4 Rf4 Rd4 Ra1 Rc4 Ra7 Ra4 Rc7 Rd4 Nd1 f2 Kb7 f1B Rf2 Bb5 Rf1 Bf3 Nf2 Rf4 Rd1 Be4 Rhh1 Ref3 Rhf1 Rd3 Rd2 Kd4 Ne1 Ke3 Ng2+ Kf3 Ra1 Nd8+ Kb8 Re3 Rf1 Nc6+
1q3K2/r3RN1N/k1bR2q1/p3p1B1/r1PrP2p/PNN2n1p/3qRbB1/3b4 w - - 0 1 legal: proof: h4 g5 c4 gxh4 d3 b5 Qd2 bxc4 Nf3 c5 Qd1 c3 Ng1 c2 Bf4 c4 Bd2 Nh6 Bc1 Ng8 e4 f5 Be2 c3 Qd2 f4 Qe3 fxe3 Bf1 Nc6 Na3 Na5 Nb1 Nc4 dxc4 Qb6 Nf3 Qc7 Ng1 Qd8 Ke2 e5 Kf3 d5 b4 Kd7 Kg4 Kc7+ Kh5 Kb7 g4 a5 f4 d4 a3 d3 b5 d2 g5 d1B+ Ne2 h3 b6 h6 Kg6 h5 Kf7 h4 g6 Ra7 f5 Bc5 f6 Ne7 g7 Ka6 g8N Nf5+ b7 Nd4 Nh6 Bd7 b8R Bc6+ Rb7 Qb8 Nd2 Rd8 Bg2 Nf3 Re1 Rd4 Nb3 Bb6 Bd2 c1R Re7 c2 Nc3 e2 Bg5 Rb1 Ra2 c1Q Rd2 Bc5 Kg7 Rb2 f7 Bb6 Rd3 Qd2 f8N Rb1 Nh7 Rb2 Rh1 e1Q Nf7 Qg3 Re1 Qg4 Re2 Qf5 Na1 Rb4 Nb3 Ra4 Nd6 Rd5 Nf7 Bf2 Rd4 Rdd7 Rd6 Rd8 Rh6 Rd4 Rd6 Qb5 Kg8 Qg6+ Kf8 Qb8+
3q1bB1/1N1p4/npr5/1Nn1K3/R2P2b1/1RRn2pp/NPrP1Bp1/2Nkr3 w - - 1 2 illegal: No possible last move
3rR2N/1q1NNb2/P1N1n1rp/q2B1pp1/B7/Kp2B1rP/p3kP1n/1Rr5 w - - 0 1 illegal: No proof kernel
4bRN1/PBn1p3/4P2p/6pK/pB2p2n/p3R1b1/BkNRr1P1/rBq1r3 w - - 0 2 illegal: No proof kernel
7k/n3bBb1/3NK1pp/2b2RqP/NB1Bq1Pn/1p5b/1P3Nqr/R1r1q2B w - - 0 1 illegal: No proof kernel
3n1KQn/B3R1PQ/B1bpP3/1rq1b1R1/B7/3r2nr/1kP3r1/1r2R2Q w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 axb5 e5 f4 e4 b6 e3 b5 a4 Nc3 a3 Na4 Rxa4 Nf3 Ra6 Nd4 cxd4 dxe3 Bd6 e4 Ra8 f5 Bf8 f6 Qxf6 e5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 h5 g4 f5 e4 f4 b7 d6 b6 f3 g6 a2 g5 f2 g7 d3 g6 d2 Rb1 a1R Qe2 d1R Bb2 h4 Qe1 h3 Bd4 h2 Rb5 Nh6 g8Q+ Nf7 Qh7 Nc6 b8R Rd3 b7 Bg7 Ba7 Bd7 Be2 Bf6 g7 f1R Qeh4 Rf5 Re1 h1N Qh2 Qe7 Re8 Rf2 b8Q Ng3 Qh1 Ncd8 Rd5 Bc6 Qb3 Kd7 e6+ Kc7 e5 Rg2 Rc5 Rb1 Qa2 Qd7 e7 Qc8 Ra5 Rab8 Qb3 Re3 Kd4 Rc3 Ba6 Rb5 Qd5 Rd3+ Kc4 Nh6 Qdg8 Nhf7 e6 Rb8 Rg5 Be5 Rf8 R8b5 e8B Qb7 Bd7 Qb6 Re8 Qg1 Re7 Qe3 Bb8+ Kb6 Ba7+ Ka5 Be8 Ka4 Bd7 Ba8 Bc6 Ka3 Be8 Rbd5 Ba4 Kb2 Kb4 Bc6 Kc4 Rc5+ Kb4 Bb5 Ka5 Qf2 Kb6 Bc6 Kc7 Rb5 Kc8 Qc5 Kc7 Bf3+ Kd7 Be4 Ke8 Bb7 Q7h4 Bc6+ Kf8 Rh7 Qe4 Rh3 Qeh7 Nh8
n1R4b/qN4r1/P2N4/3n2QQ/3n1Q1K/1b2P3/r1q1RrPp/rRb2Nk1 w - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 c5 g5 hxg5 d6 cxd6 Ra6 Nc3 Ra7 Nb1 Ra8 d4 f6 d5 f5 e3 f4 Kd2 f3 Be2 fxe2 Bb2 Bg7 Bc3 Bf8 Bd4 exd4 Ke1 Kd7 a4 h5 f4 b5 Kf2 e1N Kg3 c5 f5 h4+ Kg4 d3 g6 b3 a5 c4 g7 h3 f6 h2 f7 c3 Ra2 b2 Nf3 c2 Qc1 b4 Rf1 b3 Na3 b1R Ng5 d2 Rh1 d1Q+ Nf3 b2 Rf1 Rh7 Rg1 Na6 Nb5 Ne7 g8Q Qc7 Qh8 Bg7 f8Q Ra1 Qd2 b1R Qf7 Rb2 Qhf8 Bh8 Qh5 Rg7+ Kh4 Qb8 Na3 Nc7 Nc4 Ra6 Qd3 Qa7 Qdg6 Na8 Nfd2 Bb7 Qgg5 Nf3+ Kg4 Nd4+ Kh4 Bc6 Qff4 Ba4 Re1 Bb3 Nf1 Qe2 Rb1 c1B Qff7 Kc8 d7+ Kb7 d6 Kc6 d8R Nd5 d7 Kc5 Nd6 Qd1 Nb5 Kc4 Nd6+ Kd3 Rc8 Re2 d8N Rd2 Qhg6+ Ke2 N8b7 Ke1 Qff5 Re2 Qe4 Kf2 Q6h5 Kg1 Qef4 Rf2 Re2 Qc2 Rf8 Rc6 Rc8 Rc4 a6 Rca4 Nf7 Ra5 Nfd6 R5a2
n1kr1bn1/4pPn1/N1K1b3/bn3b1B/P1Q1Qr2/BP3N2/3B2q1/Q4Nq1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 g4 a5 e4 b5 exf5 g5 f4 a4 h4 gxh4 d3 b4 Nc3 a3 Be3 Bg7 Rh2 Bh6 b3 Bf8 Rb2 axb2 a4 Bd7 Ra2 Bc8 Ra3 bxa3 Kf2 Bh6 Kf3 Nf6 d6 Kd7 g5 b1B d4 c5 d5 c4 g6 a2 g7 a1B g8Q h3 Qg4 h2 Bc1 h1N Ba3 Ng3 Be2 Qb6 Ne4 c3 Nd2 c2 Nf1 Ng8 f6+ Nf5 Ke4 c1N+ Qc2 Na2 Bf3 Na6 Qg6 Kd8 d7 Bc3 Bg4 Bd2 Nf3 Qg1 Qd3 Kc7 d8N Ba5 Nb7 Be6 Nc5 Rf8 d6+ Kc8 Ke5 Bc2 Qc4 Nc7 Na6 Nc3 Qg7 Nb5 d7+ Kb7 d8Q Na8 Qdd3 Rd8 Qdd4 Be4 Qg6 Bg7 Qa1 h5 Qh7 h4 Qg6 Ng3 f5 h3 Qh7 Bh6 f7 h2 f8B h1Q f6 Nf5 f7 Qhg2 Bg7 Bd3 Bf6 Bf8 Bg5 Ng7 Bd2 Be4 Qf5 Rh3 Bh5 Rh4 Qf4 B4f5 Qe3 Bd7 Kd5 Bde6+ Kc5 Kc8 Kc6 Rg4 Qee4 Rf4
2q5/bb2PN1p/q5N1/n2pB1P1/Br5q/2PB2Q1/b3r2n/1NQQnk1K w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 g5 d4 cxd4 h4 e5 hxg5 e4 b4 f6 Ra3 f5 Rd3 Bd6 Rhh3 Bc5 Rhf3 Bf8 Rf4 exd3 e4 Qf6 e5 Qd8 Re4 fxe4 f4 Ke7 Kf2 Ke6 Kg2 Kd5 g6 Kc4 g7 d5 b6 a5 b7 e3 e6 e2 c3 e1N+ Kh1 a4 b5 a3 b6 a2 f5 a1Q g5 Ra4 f6 Rb4 f7 Bc5 f8Q Nf6 g8B Qa6 Be2 Ng4 Bd2 Nh2 Qf1 Nc6 b8N Na5 b7 Ba7 Bf7 Re8 Nd7 Qc7 b8Q Bb7 Bg6 Qc8 Bf4 Re7 Bg4 Re8 Ne2 d2 Bc7 d3 Be5 Re7 Qc1 d1Q Nf4 Qa4 Bd1 Re8 Qf3 d2 Bf5 Re7 Ng6 Re8 Bdc2 d1B Qd6 Q4b5 Ba4 Bb3 Be4 Ba2 Qfd1 Qbc5 Qb8 Qf2 Bec2 Qh4 e7 Rf8 Nh8 Rf6 Nf7 Rf2 Nf8 Re2 Ng6 Rd2 Bcb3+ Kd3 Bc2+ Ke3 Bd3 Kf2 Bf6 Re2 Qg3+ Kf1 Bd4 Nb3 Be5 Na5
bQ6/1r1P1bB1/KQbn3P/1r5b/2N2Q2/p2rPpNB/Nq3nB1/k3b3 w - - 0 1 illegal: No proof kernel
2R2QQn/2n1B2q/2Pp1Q1R/nq3P2/3Pb2q/bq1kpBRK/2q5/3Br3 w - - 0 1 legal: proof: b4 b5 e4 f5 a4 fxe4 Nc3 g5 axb5 Na6 b6 Nb8 b5 c6 Na2 c5 Nb4 cxb4 g4 a5 h4 Bb7 f4 Qc7 h5 Ba6 f5 Bc8 Ne2 Qd8 Nf4 gxf4 g5 Ra7 Be2 Rc7 Bd3 Rc6 Bf1 Rg6 hxg6 Bb7 Ra3 Ba6 Ra1 Bc8 Kf2 e5 Kg2 Ke7 d4 Kd6 c4 h5 g7 h4 b7 f3+ Kh3 b3 c5+ Kd5 b6 b2 g6 b1Q Kg4 e3 Kh3 Ke4 Ra2 a4 Bb2 a3 Rh2 f2 Kg2 h3+ Kg3 e2 Qe1 Qc2 Ba1 Ne7 g8B Kd3 g7 e4 Bb2 e3 Bc3 Na6 b8R Nc7 b7 Ng6 Rb2 a2 Bh7 a1N g8Q Nb3 Bb4 Na5 Bg2 f1Q Bf3 Qb3 Rg2 h2 Kh3 Qf2 Rb1 Qe8 Rg3 Bd6 Qg1 e1Q Qe6 Qed2 Qf6 Qdc2 Ra8 Rg8 b8Q Nh8 Bg6 Bb7 Bgh5 Be4 c6 Qe5 Bhg4 Qb5 Qbf8 Qe1 Rc8 h1Q+ Qh2 Bc5 Bd1 Rg7 Bgf3 Be7 Qg8 Bf8 Be7 Rg5 Bd8 Ba3 Be7 d6 Rb2 Qcc4 Re2 Qcc2 Reg2 Rg7 Rg6 Qef2 Rh6 Qfe1 Rg1 Rg2 Qff8 Re2 Rg3 Qf2 Kg4 Re1 Qh4 Qfh2 Qhf6 Qhf2 Rg6 Qh7 Rh6 Qcb2 Kh3 Qb2c2 Bh5 Qf4 Bhf3 Qh4+
R4Nn1/K5k1/Q2pQ3/bq1PR1p1/2b2rr1/Qb1N1n1P/p3rnP1/6NR w - - 0 1 legal: proof: a4 e5 b4 c5 e3 e4 Bd3 b5 f4 exf3 axb5 f2+ Kf1 Nh6 bxc5 Ng8 Bg6 hxg6 Bb2 g5 Be5 g6 Bf4 gxf4 Ke2 Rh4 Ra2 Rh5 Ra1 Rh8 Kd3 f1B+ Kd4 a5 c4 f5 c6 Kf7 b6 g5 c5 f3 e4 a4 b7 f4 e5 f2 e6+ Kg7 h3 f3 c7 a3 c6 Bd3 e7 f1R Kc5 f2 Kb6 Ra4 e8R Rg4 Qc1 Bb4 Nc3 d6 Nce2 Qd7 Ka7 Ba5 Nf4 Na6 b8N Nb4 Re5 Bc4 d4 Nd3 d5 Bb3 Ra2 Ba6 Qc3 Qe8 c8Q Bac4 c7 Qb5 Qa6 Re1 c8Q f1N Ra1 Nf2 Nd7 Nd2 Nd3 Nf3 Nf8 Rhh4 Qe6 Re3 Re1 a2 Qb4 Qa4 Qa3 Re2 Rc1 Rf4 Rc2 Rhg4 Rb2 Bd1 Rb8 Qb5 Ra8 Bdb3
1qr2Q2/Q1b2q1b/p4b1N/rBp3qp/2P3P1/PN4Q1/N2nkBK1/1n1r3B w - - 0 1 legal: proof: h4 g5 d4 gxh4 a3 e5 dxe5 b5 Nd2 b4 Nb1 b3 g4 f5 e4 Bd6 e6 Qf6 e5 Bf8 Ra2 bxa2 b4 Qd8 Rh3 Ke7 Re3 Ke8 Re4 fxe4 c4 Ke7 f4 a1B Kf2 h5 b5 c5 f5 d5 b6 e3+ Kg2 h3+ Kh1 e2 b7 e1Q Nd2 d4 Ne4 d3 Ne2 d2 N4g3 h2 Kg2 Qf2+ Kh3 Nc6 b8Q Nf6 Nc3 Nd5 Na2 Nc3 Qe1 d1R Bg2 Na5 Be3 Nb1 Ne4 Nb3 Bh1 N3d2 Bd4 Qe3+ Kg2 Qg5 Bf2 Bg7 Qe3 Bf6 Qg3 Bd7 Qc7 Qb8 Qb6 Rc8 Qc7 Kf8 e7+ Kg7 e8N+ Kh6 e6 Bae5 e7 Ba4 Qb6 Bc7 N8d6 Be8 Qa5 Bg6 e8B Bh7 Ba4 Qg8 Bb5 Qf7 Nec3 Kg5 Nc1 Qg6 N3a2 Qf7 Qh3 Kf4 Nb3 Qg7 Nf7 Qg5 Qg3+ Ke4 Be3 Kd3 Nh6 Ke2 Qb6 a6 Qb7 Ra7 Qa8 Rb7 Bf2 Rb6 Qa7 Rb7 Bd7 Rb5 Be8 Ra5 Bb5 Bh8 f6 Bg7 f7 Bf6 f8Q Bfe5 Kh3 Bf6 Be4 h1Q+ Qh2 Qf3+ Qg3 Qff4 Bh1 Qff5 Kh2 Qe6 Kg2 Qf7
Nk5q/1bq2p1r/2Qb1P1Q/4B1N1/B1n3nQ/P1p1B1nK/2Pp1r1p/1N5n w - - 0 1 legal: proof: d4 g5 h4 a5 b4 axb4 g4 e5 dxe5 h6 a3 Rh7 h5 Rh8 Rh4 Na6 Ra2 Nb8 Rb2 Bd6 Rb3 Bf8 Rg3 gxh4 g5 Be7 g6 Bf8 Rg5 hxg5 f4 d5 Kf2 Kd7 Kg2 c5 e4 Kc7 e6 b5 e5 c4 e7 h3+ Kh2 d4 e8Q c3 e6 g4 h6 g3+ Kh1 b3 f5 g2+ Kh2 b2 g7 d3 h7 b4 e7 b3 f6 Bb7 Nd2 b1Q Qa4 b2 e8Q Ra5 Ndf3 Nd7 Ng5 Nc5 Qec6+ Kb8 Be3 Nh6 g8N Ne4 Qd2 Rf5 Ne7 Ng3 Nd5 Rf2 Qh4 Bd6 Nb6 Qc7 N1f3 g1N+ Bg2 Qa1 Na8 b1N Bd4 N1e2 Be5 Qb2 Qdf4 Qa1 Nd2 Nh1 Qe3 Neg3 Qef4 Rg8 h8B Rg7 Qe3 Rh7 Bg7 Qb2 Bf8 Qb4 Be7 Qba5 Bd8 Qc8 Bb6 Qh8 Bbd4 Qc7 Qef4 Rf3 Be3 Rf1 Bd5 Rf3 Bb3 Rf2+ Kg1 Ng4 Ba4 Rf3 Qh6 h2+ Kg2 Rf1 Kh3 Rf2 Nc4 Nd2 Qfe4 Nb3 Nd2 Na5 Nb1 d2 Qf4 Nf5 Qg3 Nc4 Qgh4 Nfg3
2nb1Bkn/P1rQr1B1/1NRQ4/2rr4/2nr2P1/2P1n2B/b1K2B2/B3r3 w - - 0 1 legal: proof: b4 a5 e4 axb4 Ba3 f5 exf5 c5 Bb2 c4 Bc1 c3 dxc3 Qc7 Ne2 Qb6 Ng1 Qd8 Bg5 b5 Bc1 b3 Qg4 b4 Kd2 b2 Na3 b1N+ Ke1 b3 Nc4 b2 Qd1 Qb6 Nd2 Qb3 cxb3 g5 a4 Ra7 f4 Kd8 f6 Ra6 f5 Nc6 Ndf3 Nb8 Be3 Na3 Rc1 Ke8 Rc2 Ra8 b4 h5 Rd2 Bg7 Rd4 Bf8 Rf4 gxf4 Ne5 Rh7 Ng4 Rh6 Nf2 Rh8 g4 h4 Ne4 Ba6 Ng3 hxg3 Qd2 Bb7 Qd1 Bc8 Kd2 Kf7 h4 b1R h5 d5 a5 e5 a6 g2 a7 f3 b5 f2 b6 d4 h6 d3 b7 e4 h7 Rb5 Bc5 e3+ Kc1 e2 Be7 e1R Rh2 Rd5 Bd8 Nc6 b8Q Be7 Qd6 Be6 Bb6 Ne5 Ne2 g1R Rh6 Nac4 Bh3 f1N Bf2 d2+ Kc2 Bd8 Nf4 Rc8 Rg6 Rdc5 Nd5 Ne7 Nb6 Re8 h8B R8c7 Bg7 Kg8 Qd7 Nc8 f7+ Kh7 f8B Kg8 f6 Nf7 Qd6 Ree7 Qd7 Nh8 f7+ Kh7 Rf6 Rg3 Qd6 Rd3 Qd7 Bd5 Rc6 Rd4 Qd6 Na5 Qd7 Ba2 Qd6 Nc4 Qd7 Re8 Bd6 R8e6 f8B Re7 Bf4 Kg8 Bd6 Rh5 Ba3 Rc5 Bb2 Rdd5 Ba1 Rd4 Qe2 d1R Qe5 Rdd5 Qg3 R1d4 Qgd6 Nfe3+
krb5/2PnQR1B/pP1Q1b2/1pb1r1b1/4K3/n3Q2p/1B3NP1/Q3q2Q w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 dxc5 g4 a4 g3 a5 Nf6 a6 bxa6 hxg3 Bb7 g4 Bc8 g5 Ng8 c4 d5 b4 Bd7 b5 Qc7 c6 Nf6 b6 Qd6 c5 Ng8 Nd2 Bc8 Nc4 dxc4 Ra5 Qd8 Rb5 axb5 Ke2 e5 Kf3 h5 c7 h4 g6 a6 c6 c3 f6 c2 g7 Rh5 f7+ Ke7 Bd3 Kd6 Nh3 Nh6 g8Q Nd7 Qg3 Rb8 Ke4 Qe8 f4 Ng4 f5 Ne3 f6 Nc4 Bb2 c1B Nf2 h3 Rf1 Bg5 Qe3 Na3 Qa1 Bg7 f8Q+ Qe7 f7 B7f6 Kf5 e4 Qh6 Kd5 f8Q Qb4 Qe7 Qe1 Qg3 e3 Bc2 e2 Qge3 Bh4+ Kf4 Re5 Bh7 Bhg5+ Kf3 Qa5 Qhf8 e1B Qfd8 Bb7 c8Q Bb4 Qcc7 Bc5 Qcd6+ Kc4 Qdd1 Bc8 c7 Qe1 Qdb1 Kd5 Qdf8 Kc6 Qd1 Rd5 Ke4 Rf5 Qdd6+ Kb7 Qh2 Ka8 Qh1 Bh4 Qd6 Rg5 Qfe7 Rd5 Nd3 Bfg5 Rf7 Bf6 Nf2 Bhg5 Kf3 Rf5+ Ke4 Re5+
qRQn3k/3r1r2/1b1KNq1P/2p5/B2b1P2/1qQN3b/2P1qN1N/4rNn1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 f4 g4 d4 e5 dxe5 fxe4 Ra3 h6 Rf3 gxf3 g4 Ke7 g5 Na6 g6 Rh7 b4 Ke8 Be3 Rh8 Bf2 Nb8 Bh4 Nc6 Bf6 Nb8 Bg5 hxg5 Kd2 d5 Kc3 a5 Kd4 g4 h4 f2 b6 a4 e6 a3 Ke5 d4 g7 g3 b5 a2 b7 a1Q e7 Kf7 e8N g2 h5 d3+ Nc3 e3 h6 e2 b6 e1R+ Ne2 g1B Qc1 d2 Rh5 d1Q Qd2 Ne7 g8N Bh3 Ngf6 Rh7 Ng4 Kg8 Nh2 Rf7 Ng7 Ra7 Ne6 Kh8 Rg5 Qa3 Ne4 Nd5 Qc3 Qb1 N2g3 Qbb3 Bb5 f1Q Ba4 Qe2 Ngf1 Bfc5 Rg7 Bce3 Nf2 c6 Rg5 Qaa2 Rg7 Qf6+ Kd6 Bd4 Rg2 Ne7 Rg5 Nd7 b8N Ne5 b7 Nf3 Na6 Bb6 Rg6 c5 Nb4 Nc6 b8Q+ Nd8 Nbd3 Rab7 Qc8 Rbe7 Nh1 Bd4 Nhf2 Ng1 Rg8+ Kh7 Bb5 Qa8 Ba4 Ra7 Rg6 Kh8 Rg7 Rf8 Rb7 Rf7 Rb8 Rad7+
qr3r1N/7K/b1P1kn1p/1b2bRq1/5Q1Q/5QnP/nB1Q1P1Q/b1r1R3 w - - 0 1 legal: proof: a4 g5 b4 b5 axb5 d5 Nc3 c5 Ne4 g4 e3 g3 Ke2 f5 Kd3 Qb6 Kc3 Qd6 Bd3 Qd8 Ng5 f4 bxc5 fxe3 h3 e2 Be4 dxe4 N5f3 Qd6 Nh2 gxh2 Kb4 Qd5 Kc3 Qd8 d4 Kd7 g4 e1R c6+ Ke6 g5 a5 g6 h6 c7 e3 Kd3 e2 Ke4 a4 c4 a3 d5+ Kd6 b6 e5 g7 a2 b7 Nd7 Kf5 e4 Kg6 e3 b8Q Nc5 Bb2 Ba6 Qd2 Nf6 g8Q Nce4 Nf3 Bg7 Qf7 Ng3 Ng5 Rc1 Re1 h1B Qf8+ Kd7 d6 Bc6 c5 Bcb5 Nf7 Ke6 d7 Qc8 Rb1 a1B d8Q Rg8 Qb7 Rb8 Qf3 Qb7 c6 Qa8 Qfb4 Rf8 Qh4 Bh8 Q8d4 Bg7 Qdf4 Bh8 Rg1 e1Q Rh1 Bg7 Nh8 e2 Rg1 Qd1 Rh1 e1N c8Q+ Nd7 Qcc7 Be5 Rg1 Nc2 Kh7 Nb4 Rf1 Na2 Re1 Rc4 Rc1 Qb3 Rc2 Qe3 Rc3 Rc5 Rd3 Rc1 Rd5 Bg7 Rf5 Bf6 Qg2 Be5 Qh2 Qc5 Qca5 Qe3 Qac3 Qc5 Qcf3 Qe7+ Nf7 Qg5 Nh8 Nf6+
1B1qqqR1/1bP1QPbn/3nbnQ1/8/p2Pq2R/5rR1/k2rN3/5RKR w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 f5 exf5 c6 b6 Bg7 Ra6 Bh6 Ra1 Bf8 b4 Bg7 c4 Bf6 b5 Bg7 b7 Bh6 b6 Bf8 Na3 d5 Nb5 cxb5 c5 Nh6 Be2 Ng8 Bc4 dxc4 Kf1 Kd7 d4 Kc6 g4 Kd5 f4 a5 g5 e5 f6 h5 f7 e4 g6 h3 f5 c3 c6 Kc4 g7 h2 c7 c2 f6 Kb3 Nh3 b4 Kg2 h4 Rb1+ Ka2 Qe1 a4 Qg1 b3 Bg5 c1Q Kf2 b2 Qg3 e3+ Kg2 e2 Bf4 e1Q Bh6 Qf4 Rc1 b1N Rf1 h1B+ Kg1 Nd7 b8R Nd2 b7 Ne4 Qg6 Nd6 Rc3 Qe2 Rg3 Qee8 Bg5 Qfe4 Nf4 h3 Ne2 Ra5 Ra8 Rf5 b8R Rf3 Rbb1 Rh5 Bd2 Rb5 Ra5 Rb2 Bb4 Rd2 Rh5 Bb7 Rbd1 Bd5 Bc5 Be6 Ba7 Qf5 Rf2 Qf4 Bb8 h2+ Kf1 Qh6 Rh4 Bg2+ Ke1 h1Q+ Rf1 Rb3 Kf2 Bb7 Rde1 Qe4 Kg1 Rf3 Rb1 Ne7 g8R Bg7 f8Q Nd5 f7 N5f6 Qe7 Nh7 Rb5 Ndf6 Rbh5 Bh8 Rh1 Qhf8 R5h4 Bg7
6B1/P3p2r/B1qB1r2/1BB1rNb1/3r2b1/1K2Qnn1/2P1bRPQ/2nk1q2 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 a5 Nc3 f5 Nb5 g5 hxg5 f4 Ra3 c6 b4 cxb5 bxa5 b4 Re3 fxe3 d4 Kd7 f4 Kc6 f5 Kd5 f6 h5 f7 b5 a6 e2 Kd2 Kc4 a5 b3 a7 b4 d5 h4 g6 h3 d6 b2 g7 b1B d7 h2 a6 b3 Nf3 b2 Rg1 h1R Nh2 Nh6 g8B Nc6 Qe1 Nd4 Ng4 Nb3+ Ke3 Rh7 Qg3 Kc3 Qf2 e1R+ Be2 Ba2 Ne5 b1Q Ng6 Rh4 Rf1 Qe8 d8B Bg4 Bb6 Qc6 Ba3 Nc1 Bd6 Bc4 Bbc5 Kb2 Kd4 e3 Bd3 e2 Qe3 Rd8 a8B Nf5+ Ke5 Rh1 a7 Ng3 Kd4 Bh6 f8Q Bg5 Bb7 R1h6 Nh4 Rf6 Rf2 Qa1 Qh6 Qaa6 Bf7 Kb1 Kc3 Rd7 Bc7 Rd4 Nf5 Nb3 Qe4 Kc1 B7d6 Kd1 Bg8 Nc1 Qf3 Rh1 Qe4 e1N Qh2 Nf3 Qe6 Qab5 Ba6 Re1 Qe4 Re2 Qf4 Re5 Qe3 Bd5 Bf1 Qe2 Kb2 Bc4 Ka3 Qe1 Bd3 Qf1 Kb2 Be6 Bdb5 Bc4 Ka3 Be2 Kb2 Nd3+ Kb3 Nc1+
2kq2K1/r1bbnp2/1PbR4/R6R/1Nnrr3/1Q1PnRP1/1bB3r1/2RQ4 w - - 0 1 illegal: No possible last move
N1N2B1n/1r2n3/b3P1p1/N1q5/3NQpPK/P2b2Rr/1N5r/1Qr1qk1n w - - 0 1 illegal: No possible last move
Q1Kr1Bn1/1P1Prp2/8/q3q1qQ/1P1RB1p1/4b1qn/kBN1br2/2B4B w - - 0 1 illegal: No possible last move, all moves rejected
1Rb3K1/kr1P4/PN4n1/1r1pr3/Qr5Q/Bp1P2QB/1rrq1Qq1/4nQ2 w - - 0 1 legal: proof: c4 a5 e4 f5 c5 g5 exf5 d5 b3 Bg7 b4 Be5 f6 Bd6 cxd6 axb4 a4 h6 f4 Nc6 g4 Nb8 f5 Bd7 Nc3 Be6 Nce2 Bc8 Nf4 gxf4 g5 h5 Ra3 Ra6 Rg3 Ra8 Rg4 hxg4 Kf2 Kd7 h4 Kc6 h5 Kb6 h6 c5 g6 e5 d7 g3+ Kf3 b3 Kg4 f3 Kg5 c4 g7 c3 Kg6 b2 Kf7 b1R d3 g2 a5+ Ka7 h7 b5 a6 b4 Qc2 e4 Qa4 c2 Bf4 c1R Qc2 b3 Qa2 f2 Rh6 e3 Bd6 e2 Qa4 e1R Ba3 Qa5 Ne2 g1R Bh3 f1Q Nc3 Ne7 g8Q Rb2 Qg3 Re5 Rh4 Ng6 Rb4 Nc6 Rb8 Rhe8 h8Q Nb4 Qhh4 Rcc2 Kg7 Qe2 f7 Qg2 f8Q Rf1 f6 Rf4 f7 Rg4 Rb5 Rb8 Kg8 Rb7 Rb6 R8e6 Qc5 Rc6 Qcf2 Rc5 f8Q Rb5 Q8f5 Rd2 Qf1 Nc2 Q5f4 Ne1 Q4f2 Rc7 Rb8+ Rd4 Nb1 Rdc2 Nd2 Rcb7 Nc4 Qd2 Nb6 Rdb4
b3k3/4P2p/1QNpqqN1/1p1KPbrQ/BP1Q1RQ1/2r4Q/3q1bn1/7n w - - 0 1 legal: proof: b4 c5 d4 cxd4 f4 g5 h4 e5 hxg5 a5 fxe5 a4 Bb2 a3 Kf2 axb2 Ke1 bxa1Q a3 Qa5 a4 Qd8 e6 f5 Kf2 d3 Kf3 d2 g4 d6 c4 f4 Ke4 f3 c5 f2 c6 b6 g6 Ra5 g7 Rb5 a5 Bb7 g5 Ke7 g6 Rc5 a6 Rh5 a7 Qc7 a8Q Kd8 Qa7 Ne7 g8Q Qg7 Rh4 Nd7 Nc3 Ne5 Nb5 Nf5 Nd4 Ne3 Qf7 Be7 Ngf3 N5g4 Ne5 Ba8 Qb7 Qh6 g7 Qd7 g8Q+ Qe8 Bg2 f1B Qf2 Bf6 c7+ Ke7 Bh1 Bh3 c8Q+ Qd7 Bf3 Ng2 Kd5 b5 e4 Rf5 Qe3 Nf2 Rf4 Nh1 Qg5 Qg7 Qh5 Bh4 Qec3 Re8 Nc6+ Kf8 Qbb8 Qf6 Qb6 Bf2 Qcd4 Rg5 Qb3 Qdf7 Bd1 Bg4 Bc2 d1Q Qbh3 Qd2 Qd7 Re7 Bb3 Qe8 Qc8 Ra7 Bd1 Ra3 Ba4 Rc3 Qd7 Qc8 e7+ Kg7 Qf5 Kg8 Ng6 Kf7 e5 Ke8 Qb1 Qd7 Qd1 Bf5 Qdg4 Qde6#
1NQN4/rBpK1QP1/2b2R1q/p4n2/3P3N/rb1r1N2/Pb2N2p/1k1r3b w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 e5 fxe5 g5 b4 b5 h4 Qd7 Na3 Nc6 h5 Qd8 Rb1 Nce7 Bb2 Ng6 hxg6 Qd7 Bd4 Qd6 Be3 Qd8 Bf4 gxf4 g5 Bh6 Rb3 Bf8 Rd3 c3 Rd4 Bg4 Re4 Bc8 Rc4 bxc4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 d4 h5 g7 f5+ Kf3 Kd5 e3 h4 e6 h3 g6 h2 b5 c2 b6 c1R e7 c3 e8N c2 b7 Ra7 b8N Nh6 g8N Qf6 g7 Be6 Nb5 Ba3 Bg2 Kc4 e4 Bb2 e5 Qh4 Qd2 Rd1 Qf2 Kd3 Nc3 c1R Nd6 Bb3 Nce2 Kc2 e6 Kb1 e7 Rd2 e8Q Rcd1 Ne7 Rd3+ Qe3 Qf6 Nb7 Qg6 Nd8 Rh7 Kf2 f3 Qe6 f4 Q8f7 Nf5 Qc8 Qh6 Ng6 Rh8 Nh4 Re8 Nh3 Ree3 Ng5 Qb6 Re1 Qh6 Kf1 f2 Bb7 Rh3 Kg2 f1B+ Kf2 Bg2 Ngf3 Bh1 Rg1 Ba4 Rg6 Ra3 Rf6 Bb3 Nfg1 Rhd3 Ngf3 Nd6 Ng5 f3 Kg3 f2+ Kf4 f1B Ke5 Bfg2 Ngf3 Ba4 Ke6 Bb3+ Kd7 Nf5 Nfg1 Be4 Ngf3 Bc6+
nQ2q3/2Q4R/1p2Qp2/2Nq1K2/B1pP1P2/Qpq1rRrQ/1P2b3/1n3rk1 w - - 0 2 legal: proof: d4 d5 f4 g5 h4 e5 hxg5 a5 c3 Bh6 g6 e4 g4 Bf8 Nd2 Bd6 Ndf3 exf3 Be3 Bf8 Bf2 Ba3 Bh4 Bc5 Be7 Bxd4 Bb4 axb4 g5 Bg7 Qc2 d4 Qb3 d3 Qd1 Bd4 cxd4 Ra4 Kd2 Ra6 Ke1 Ra8 Kf2 Kd7 Kg3 Ke6 Kg4 Kd5+ Kh5 Ke4 a4 Ke3 a5 Kf2 e4 c5 g7 b3 a6 f6 a7 b6 e5 c4 g6 d2 e6 Na6 Kg4 Ne7 g8Q Nd5 g7 Nac7 Bh3 Nc3 Qf7 Re8 g8Q h6 Qc1 d1Q Ne2 Qe1 Ng3 Rb8 Rh2+ Kg1 a8Q f2 Qa3 Na8 Ne4 Qe7 Nc5 h5+ Kg3 h4+ Kg4 Qd7 Qe3 Qd5 Rd1 Nb1 Rd3 Qc3 Qc7 Bd7 Qf3 f1R Qh8 Qe4 Bg2 Bc6 e7 h3 Qg8 Qee1 Kf5 Bd5 Qh5 Bf3 Qgh8 Rg8 e8Q Rg3 Qee5 Bd1 Bc6 Re8 Ba4 Qe3 Qg8 Be2 Qed5 Qe7 Qdd8 Qf8 Qdb8 Re4 Qe6 Qe8 Rf2 h2 Qh8 h1Q Rh2 Qf3 Qh5 Qd8 Qg4 Qf8 Rh7 Qe8 Qh3 Qg2 Rf3 Re3 Rf2 Qb7 Rf3 Qd5+
q2B2Rn/2R3pP/qq4b1/3r2PQ/1Rnqk3/1Rpr1Nb1/2PnKQ2/2r4R w - - 0 1 legal: proof: a4 b5 axb5 d5 g4 h5 g5 f5 Bh3 f4 Kf1 f3 Bg4 fxe2+ Kg2 hxg4 Nc3 Nh6 Ne4 dxe4 Ra5 Ng8 Ra2 Rh6 Ra1 Rh8 b4 Kd7 h4 Kd6 f4 Kd5 Kf2 e1Q+ Kg2 c5 d4 a5 b6 e5 f5 c4 h5 e3 f6 c3 b7 a4 f7 a3 b5 e4 h6 e2 b6 e3 h7 g3 Kf3 g2 Rh5 a2 Nh3 g1Q Bb2 Qef1+ Nf2 e1R Rh3 e2 Rb1 a1Q Ba3 Ne7 Rb3 Ng6 Be7 Nc6 b8R Ra5 b7 Bf5 Rh1 Qb6 Bd8 Bd6 f8Q Bg3 Rc8 Nce5+ Ke3 Rb5 b8R Qa8 Rc7 Nc4+ Kf3 Rg8 Rb4 Nh8 Qc5+ Ke6+ d5+ Ke5 Rbb7 Bg6 d6+ Ke6 Qcd4 Kf5 d7 Rd5 Qh4 Re8 Qd2 Qd4 Qh5 Rc1 Rb3 Re4 R7b4 Qb6 Qe1 Red4 Qd2 Rd3+ Qe3 Qh3 Ng4 e1N+ Ke2 Nf3 Ne5 Nfd2 Qf2+ Ke4 Nf3 Qaa6 Be7 Qh4 d8R Qg2 Rg8 Qf4 Bf6 Qe5 Bd8 Qed4 Rc6 Qh3 Rc5 Qhc8 Rc7 Qca8
1b2R2n/4pqN1/PQnN1pr1/b1q1N2p/r3PNQP/rn3b2/2k2KN1/4B3 w - - 0 1 legal: proof: c4 f5 b4 a5 e3 axb4 Bd3 d5 cxd5 f4 Be2 f3 a4 fxe2 f4 Nh6 f5 Kd7 f6 Ng8 f7 Kd6 Kf2 Ra7 Ra3 Ra5 Rc3 Kd7 Rc6 Ra8 Rf6 gxf6 g4 Kd6 h4 Kc5 d4+ Kc4 a5 e1B+ Ke2 h5 d6 c5 d7 b5 e4 b3 g5 b2 g6 b4 d5 b3 g7 Nh6 g8Q Nc6 d6 Qb6 d8N Bg4+ Nf3 Qc7 Qg6 Rg8 Na3+ Kc3 d7 b1Q Nc2 b2 Ne6 c4 d8N Qa2 Rg1 b1R Ng7 Rb3 Qd6 Ra3 Nb7 Qb6 Bf4 Qc5 Bd2+ Kb2 Qd8 c3 Ne3 c2 Ng2 c1N+ Kf1 Qad5 Qb6+ Kc2 Nd6 Nb3 Ne5 Bf3 Qg4 Bg3 Be1 Bh2 Ne6 Rg6 Nef4 Bg7 f8N Nf7 N8e6 Bh6 Ng7 Nh8 Ndf5 Qf7 Nd6 Rb8 a6 Bg5 Qc7 Rb4 Qb6 Rd4 Kf2 Bh6 Nfe6 Bd2 Nef4 Ba5 Bc3 Qcd5 Rd1 Rda4 Be1 Qc4 Rd5 Qc3 Rc5 Nb8 Rc7 Nc6 Rc8 Qc5+ Ne3+ Kb1 Re8 Kc1 Nd7 Qfd5 Ndf5 Rg5 Nfe6 Bb8 Nf4 Kb1 Nd6 Rg6 Ne5 Kc1 Qb7 Qf7 Qb6 Ncd4 Neg2 Kc2 Qb4 Nc6+ Qd4 Qcc4 Qb6 Qc5+
4b2N/3p2PQ/N1kN2N1/3pn2r/1Qpq1p1B/bn3r1N/2KP1PR1/4q1bb w - - 0 1 legal: proof: b4 g5 h4 b5 hxg5 a6 c4 e6 a4 Bd6 e3 Bc5 Bd3 Bf8 Be4 bxc4 b5 a5 Bd5 exd5 Ra2 Bg7 Rb2 Bf8 Rb4 axb4 g4 f5 e4 c5 g6 h5 g5 f4 a5 b3 b6 c3 b7 h4 e5 b2 e6 c2 e7 h3 g7 h2 g6 Rh5 a6 Nh6 g8N Nf7 a7 Qb6 g7 Na6 b8N Ne5 Na3 b1Q Bb2 c1B Nc4 Qf6 Bc3 Ba3 Nh3 Qfb6 Rg1 h1B Rg5 Q6b2 Bb4 Qd4 Rg2 Kf7 e8N Ke6 Ncd6 Be7 Ke2 Bh4 Nf7 Bg3 Qb3 Bh2 Ne7 Bg1 Ng6 Qbe4+ Kd1 Qe1+ Kc2 Bb7 Ne7 c4 Ng6 Nc5 Ba5 Bc6 Bd8 Ba4 Na6 Rb8 Nfh8 Rb6 Nec7+ Kd6 Bh4 Kc6 a8Q+ Rb7 Qg8 Rb8 Qh7 Re8 Rh2 Re6 Nf8 Rg6 Ne8 Rg3 Nfg6 Rf3 Bg3 Bb5 Qb2 Nb3 Bh4 Ba4 Rg2 Nc1+ Kb1 Bd1 Qb4 Nb3 Nd6 Rg3 Nf5 Bg4+ Kc2 Rf3 Nd6 Be6 Qb8 Bf7 Qb4 Be8
Nn3n1K/4pq2/1Q2Q2Q/1N5r/P4Nr1/P2BPRr1/rb2b2r/2kr3N w - - 0 1 legal: proof: g4 d5 f4 a5 c4 h5 cxd5 g5 fxg5 a4 b3 Rh7 bxa4 Rh8 a3 hxg4 Kf2 b5 Nf3 b4 Ng1 c6 Ke1 c5 Bb2 b3 Ra2 bxa2 Bc3 Kd7 Ba5 Ke8 Bb4 cxb4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 h4 Kd4 e3+ Kc5 d4+ Kd6 g6 a1R Kg5 f5 h5 g3 g7 b3 Kg6 g2 h6 b2 h7 f4 Nc3 b1R Nh3 f3 Nf2 Bh3 Bd3 Rb4 Qb3 Ra2 Rf1 Ra5 Nh1 Nf6 g8Q g1R+ Kf7 f2 Nb5+ Kd7 d6 Kc6 d5+ Kc5 d7 Rg3 d6 Bg4 Qe6 Be2 Qg6 Rbg4 Qh6 Qc8 d8N Bg7 d7 Qc7 Qa6 Qf4 Ne6+ Kd5 d8N Nfd7+ Qf6 Qc4 Qb6 Nf8 Qg6 Bb2 Nf4+ Ke5+ Kg7 Qd5 Nde6 Qf3 Ra1 f1R Nec7 Rd1 Rc1 Qd5 Rc6 Qb3 Rf6 Qe6 Na8 Qf5 Bc4 Ke4 Bd3+ Kf3 Kh6 Qe6 Rf5 Qf7 Qge6 Rhg8 h8Q Rg2 Rh5 Rh2 Rh3+ Rg3 Nd6 Rd5 Nb5 Rg4 Qg7 Nfd7 Kh7 Nf8+ Kh8 Rc5 Ng6 Re5 Qh6 Rh5+ Qf6+ Kg2 Nf4+ Kf1 Qe5 Ke1 Qef6 Kd2 Qe5 Rgg1 Rf3 R1g3 Qef6 Kc1 Qe5 Rg7 Qee6 R7g4+
2br1n1b/rQpb1kBr/1p6/1B4q1/B3PPP1/B4R2/7b/1N1Q1KQr w - - 0 1 legal: proof: c4 a5 b4 axb4 a4 d5 cxd5 g5 h4 b6 hxg5 Nd7 a5 Nc5 a6 Nb7 axb7 e5 d4 Ra4 d6 Bh6 d5 Bg7 Ra2 Bf8 Rd2 Ra5 Rd4 Ra8 e4 exd4 Na3 f5 Nc2 f4 Ne3 fxe3 b8Q h5 g4 d3 f4 e2 g6 b3 g7 b2 d7+ Kf7 d6 b1B Qa4 h4 Ba3 h3 Nf3 h2 Qb7 Rh7 Nd2 Nf6 Qd4 Ba2 Nb1 Ra7 Qg1 d2+ Kf2 Qe7 d8Q d1R d7 e1B+ Ke2 Be6 g8B+ Kg7 Bf7 Bg3 Bg8 Bf5 Bb3 Qe5 Ba4 Kf7 Bg2 Rd5 Kf1 Bg7 Bf3 Be6 Be2 Qg5 Beb5 Rd4 Qh8 Rd5 d8B Nd7 Bf6 Nf8 Ba1 Bb2 Qhd4 Rd8 Qd1 Bh8 Bg7 Bed7 Qe3 Bh4 Rg1 Bf2 Rg3 Bg1 Rf3 h1R Qed4 Bh2+ Qg1 Bc6 Re3 Be8 Rf3 Bed7
2brQ3/krp1B3/1R3bKN/1bQ3P1/q1P1b1p1/1RQQP2q/1b5R/r7 w - - 0 1 legal: proof: e4 e5 a4 d5 d3 dxe4 Kd2 b5 axb5 e3+ Kc3 e2 Ra3 e1B+ Qd2 e4 Kb3 e3 Ka4 e2 Ra2 Nd7 Qd1 Ndf6 Kb3 Ng4 Ra1 Ne3 fxe3 a5 g4 g6 Bg2 Ne7 Be4 Nc6 Bf5 a4+ Ka2 Na5 b4 Bd2 bxa5 Bdb4 Kb2 Be1 Nd2 gxf5 Ne4 h6 g5 h5 Nf2 Be6 Ng4 hxg4 Nf3 Bd7 Ng1 Bc8 c4 Kd7 Kc2 f4 h4 f5 b6 Kc6 a6 a3 b7 Kb6 b8R+ Bb7 d4 a2 Kd3 f3 a7 f4 h5 f2 h6 f1B h7 f3 d5 f2 Ke4 Bh3 Kf5 f1B d6 Bhg2 d7 Bd6 Qd5 Bc3 Ba3 e1Q Kg6 Bf6 Rb1+ Qb4 Ne2 a1R Ng3 Bd3+ Nf5 Bde4 Rb3 Bde5 Rh2 Bb2 Qd4+ Ka6 Qc5 Bc8 Rb7 Bc6 Nh6 Qa4 R7b5 Qe7 d8Q Rb8 Qd3 Rd8 h8Q Rb7 R5b4 Bb5 a8Q+ Ra7 Qae4 Rb7 Qg7 Qd6 Qe8 Qg3 Qgh8 Qh3 Qg7 Bbd7 Rb6+ Ka7 Qgh8 Bb5 Qg7 Be7 Qgc3 Bf3 Qcc6 Bf6 Be7 Bh1 Qc5 Be4+
k1KQ4/3n1B2/4pq1n/P4P2/1bB1r2r/B1Q2Qpr/n4RpP/rN5B w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 d4 axb4 dxe5 Qd7 Bf4 Qe7 Bc1 Qd8 e4 Kd7 a3 Qg5 e6+ Ke7 e5 Kd8 e7+ Kd7 e6+ Kd6 e8B Qd8 e7 Bh3 Bc6 Bf5 Be8 Bc8 g4 b6 f4 h6 f5 Nc6 f6 Bb7 a4 Ba6 Nd2 Nb8 Ndf3 Bc8 Ng5 Bf5 gxf5 hxg5 Ra3 g4 Re3 Na6 Re2 Nb8 Re6+ fxe6 Kd2 c5 Kd3 Kc7 Ke4 Kb7 Ke5 g5 a5 b5 d6 c4 d7 c3 Kd6 g3 f7 g4 Bh6 b3 Bh3 b2 Qc1 b1R Bf1 b4 Ne2 c2 Nc3 b3 Bc4 b2 Rf1 Ra1 Rf2 b1R Bg5 Rb4 Nb1 Rh7 Bd2 Rba4 Bb4 Rh3 Ba3 Nh6 Qe3 c1N Qc3 Ka7 Qf3 Na2 Qc3 Qc8 d8Q Nd7 Qf3 Qb8+ Kc6 Qb4 Kc7 Qb2 Qc3 Rb8 Qf3 Rb5 Kc8 Re5 Qc3 Re4 Qf3 Ne5 Bc6 Nd7 e8B Bb4 f8Q Qc3 Qh8 Qf6 B6b5 Ka8 Bf7 Qg6 Qhc3 Qf6 Bf1 Qe7 Bg2 Qf6 Bh1 g2 Ba6 g3 Be2 Bf8 Ba6 Rd4 Bc4 Bb4 Qd1 Reh4 Qdf3+ Rde4
3R1K2/q2Q1qr1/1P3nQ1/2Q1P2P/1rR1n1n1/6q1/1b2kn1B/RQnbrN2 w - - 0 1 legal: proof: g4 g5 a4 h5 f4 d5 c4 b5 axb5 gxf4 Bg2 e6 g5 e5 Bf3 Bh3 cxd5 Bc8 Na3 e4 Nc2 exf3 Ne3 Bb4 Ng4 hxg4 Qa4 Ba3 Qd1 Bf8 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 d3 c5 d6 a5 d7 f5 g6 g3+ Ke1 c4 Kd2 g2 g7 f2 h5 f1R b6 a4 e5 c3+ Kc2 f3 b5 a3 Kb3 a2 b7 c2 b6 f2 Rh3 f4 Bd2 c1N+ Kb2 f3 Bg5 Re1 Rh1 f1Q Bf4 f2 Rh4 Na6 b8Q Nf6 g8Q Rh7 Bh2+ Ke3 Kc3 Nc5 Kc4 Rg7 Ne2 g1N d4 Nce4 d5 Ba3 d6 Nh3 Qc7 Bb2 Qc5+ Kf3 Kb5 Ra4 Kc6 Rb4 Qe8 Ba6 Qg6 Qg8 Ng3+ Be2 d8R Qb3 Qdc2 Bd1 d7 Qf7 Qb3+ Qd3 Nf1 Ke2 Rf4 Qg3 Rg4 Bc3 Qb1 Bb2 Kc7 Nc3 Rc4 Nce4 Nd2 f1N Kc6 Nef2 Kd6 Ne3 Nf1 Ng5 Rh8 Qf4 d8Q Qg3 Qd7 Neg4 Rd8 Nge4+ Kc7 Nc3 Kc6 Rg8 Kd6 Qd5+ Ke7 Rg7+ Kf8 Nce4 Qc2+ Kf3 Rb1 a1Q Qdb5 Qa7 Qd7 Qe6 Ra1 Qd5 Qb1 Ke2 Qde8 Qe6 Qd7 Qf7+
4r3/rQbrk2N/2Kr2nQ/1P6/q3B2b/2QNr1NP/2bnp2P/3N1Rn1 w - - 0 1 legal: proof: d4 e5 b4 exd4 e4 b5 e5 h5 e6 f6 Bf4 h4 Be5 h3 gxh3 fxe5 a4 c5 Ra3 c4 Rd3 cxd3 axb5 Qc7 Qg4 Qb6 Qd1 Qd8 Kd2 g5 f4 a5 c4 d5 e7 g4 c5 g3 b6 e4 c6 g2 b7 a4 b5 e3+ Ke1 e2 Kf2 d2 Kf3 a3 f5 a2 c7 a1B f6 d3 Nc3 d4 Ke4 Ra7 Qc2 d1R Qa4 d2 Ke5 d3 Qa2 Bf5 c8N Nd7+ Kd5 Nc5+ Kc6 Ne4 b8Q Qd4 Qa3 Qa4 Nf3 g1N Bg2 Rf1 Qb6 d1R Ne1 d2 Qb7 Rf3 Nd3 Re3 Bf3 Kf7 e8N+ Be7 Ncd6+ Ke6 f7 Bh4 f8Q Ne7+ Kc7 Bb2 Nf6 Ng6 Qh6 Ke7 Nh7 Re8 Qc5 Ba3 Qd4 Bb4 Qh8 Ba5+ Kc6+ Bc7 Bg2 Rb1 Nd1 Rb4 Qc3 Rd4 Nf7 Rd7 Nfg5 Ng3 Ne4 Nf1 N1b2 d1R Ng3 Nd2 Be4 Ngf3 Rf1 Ng1 Qc2 Be6 Qc3 Bb3 Bf5 Bc2 Be4 Rb1 Nd1 Rb4 Bd5 Rd4 Be4 R4d6+
1KqN2Q1/nb4rq/1r1RN1k1/2qQ1n2/N2b2p1/2BnPN2/QP1qP2q/8 w - - 0 1 legal: proof: g4 g5 a4 h5 f4 gxf4 g5 b5 axb5 c5 Ra4 e5 Bh3 e4 Rd4 cxd4 Bg4 e3 dxe3 hxg4 Kf2 f5 c4 Kf7 h4 a5 c5 d5 b6 f3 Kg3 d3 Kf4 d2 Ke5 a4 h5 f2 h6 f1Q c6 d4 h7 d3 c7 a3 b7 f4 Rh4 f3 Rh2 f2 Rh5 a2 Nh3 a1Q Qa4 d1Q Rh4 d2 Rh6 Ne7 Nf4 Rg8 h8Q Qg2 Qb5 Qe8 Kd6 Nbc6 b8N Bb7 c8N f1Q Kc7 Bg7 Nb6 Bd4 Rd6 Qh2 Ne6 Qf5 Qd5 Qe4 Qa2 Ra6 Qe5 Na7 Na4 Rb6 Qed5 Qeh7 Nc6 Nf5 g6+ Kf6+ g7 Kg6 Qa5 Qc2 Q5d5 d1N Nd2 Qc5 Nf3 Nf2 Bd2 Qac1 Ba5 Nd3 Bc3 Nc8 Kb8 Qd2 Qa3 Qd7 Ncd8 Na7 Qab3 Rf8 Qbc4 Rf7 g8Q+ Rg7 Qa2 Qdc8+
2rBknr1/PRb1n1Pq/1qp3n1/1n2P1B1/6r1/1Qnb2QK/N2B1Q2/3B4 w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 d5 cxd5 g5 fxe5 Ra7 a4 Ra8 Ra3 Nc6 Rf3 Nb8 Nc3 h6 Rf4 gxf4 Ne4 h5 g5 Ra7 Nf2 Ra8 Ng4 hxg4 Kf2 b5 Kg2 f5 h4 b3 e4 c6 d4 b4 d6 g3 a5 b2 h5 b1N h6 b3 g6 b2 h7 f3+ Kh3 f2 d5 g2 e6 f4 e5 f3 g7 Ne7 a6 Rg8 h8Q Nc3 a7 b1N Be2 f1Q Qh4 f2 Qb3 Qb6 Bd2 Nb5 Qhg3 N1c3 Bd1 Qd3 Ne2 g1R Nc1 f1N Na2 Ne3 Qf2 Rg4 d7+ Kd8 Rf1 Ba6 Qg3 Qb1 Rf7 N3f5 Qf2 Nh4 Qg3 Kc7 d8B+ Kc8 d6 Qh7 Qf2 Nd7 Qg3 Nd4 Qf2 Bd3 Qg3 Ndb5 Qf2 Ned5 B8g5 Ne7 Qg3 Kd8 Qf2 Nf6 d7 Rc8 Qg3 Neg6 Qf2 Bd6 Qg3 Nf8 e7+ Kc7 e8Q Nfd5 Qe6 Ne7 Qf5 Kd8 Qff3 Kc7 d8B+ Kd7 Qff2 Ke8 Rf4 Bc7 Rd4 Bb8 Rd7 Bd6 Rb7 Bb8 Qff3 Bc7 Qff2 Nhg6+
k3b3/2nbR1K1/4qP2/1R1Pq1pq/q1nb2Q1/4QrR1/2PQ2Br/Q2N3r w - - 0 1 legal: proof: e4 d5 g4 b5 b4 c5 a4 h5 Nc3 f5 exf5 hxg4 Ne4 dxe4 Ba3 Bb7 axb5 Na6 b6 Nb8 b5 Bc8 Bb4 cxb4 Ke2 Kd7 Ke3 g5 Kd4 a5 Ke5 e3 d4 e2 f4 e1Q+ Qe2 g3 h4 g2 h5 a4 b7 Kc7 h6 a3 h7 b3 f6 b2 f7 b1B f5 Bg7+ Ke4 e5 f8R Nc6 Rf6 Kb8 Rh3 Bd7 Kd5 e4 Rf7 e3 Qd2 e2 Rg3 Ne5 Nh3 g1R Nf2 Nc4 Nd1 Rh1 Re7 Ba2 Rb1 Qe8 Bg2 Qh5 Qe3 Be8 Ke6 Nf6 d5 Bb3 Rb2 a2 Qd2 Rf8 h8Q a1Q Rb1 Ba4 Rbb3 Ka7 b6+ Ka6 b8Q Rh2 Rc7 Bad7+ Ke7 Qa4 b7 Rh1 Qc8 Ka7 Rb5 Rb8 Qc1 Qc3 Qe3+ Qd4 Qd2 e1Q+ Qe3 Qg6 Qh2 Qh5 Qg1 Rh8 Qf2 Rh7 Qd2 Bh8+ Kf8 Rh2 Qf3 Qe6 Qa3 Qde5 Qa1 Bc6 Rg7 Bcd7 Re7 Ra8 Qc5+ Kb8 Qce3 Ra6 Rc5 Rb6 Ra5 Rb3 Rb5 Rh6 Qf4 Rf3 Qg4 Ne4 Qe3 Nc5 Qd2 Na6 Qe3 Qc3 Qd2 Be5 f6 Bd4 Kg7 Nc7 Qe3 Qe1 Qd2 Q1e5 Qe3 Ka7 b8Q+ Ka6 Qd8 Ka7 Qd2 Bf7 Qh8 Bfe8 Qh7 Ka8 Qhe4 Rh4 Qee3 Rh1 Qf5 Qg4 Qfe4 R6h2 Qf5 Qh3 Qg4 Qh5
qB3r1k/b1KN2r1/r3Q3/P1rBP2n/Q7/pQ4Pr/1b2bB2/1QR2nb1 w - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 h4 g5 hxg5 dxc4 Rh5 a4 Rh4 Be7 Rh1 Bf8 Nc3 b5 Rb1 Ne7 b4 Ng8 Rb3 axb3 a4 Ra6 a5 Ra8 Na4 bxa4 Kf2 h5 Kf3 c5 Ke4 f5+ Kf4 Kf7 e4 Kg7 d4 a3 g6 c3 e6 b2 Ke5 b1R b5 c4 d5 c2 b6 h4 e7 c3 e8Q h3 g3 h2 b7 f4 d6 f3 d7 f2 Qd6 Nh6 Qd4 Bc5 Qd3 Ra6 Qc4 Rh7 Qb3 Ba7 Qb2 Nf5 Bg5 c1B Bh3 f1R Bg2 c2 Nf3 Ne3 Qe6 Kh8 Qb5 Rb4 Qa4 Rg7 Be7 Rb2 Bc5 Rb5 Rg1 Qf8 d8Q h1R Qd1 Rh3 Qeb3 Bd2 Qdb1 Bg4 Rh1 Rf2 Rc1 Nf1 Kd5 Bg5 Ne5 Be2 Nd7 Be3 e5 Qe8 Bh1 Rf8 Be4 Bg1 Bh1 Nc6 Kd6 Nd4+ Kc7 Qa8 b8B Nf5 Bb7 Rh5 Bf2 Rh3 Rd1 c1B Bd5 Bb2 Rc1 Re7 Q1d3 Ng7 Qdd1 Nh5 g7+ Kh7 g8Q+ Kh6 Rc5 Rg7 Qe6+ Kh7 Qb1+ Kh8 Rc1 Rc5+
1N3bBR/n5rP/2nP1Q2/N1K2n2/1r3Q2/5P1Q/r1rpNk2/Qn1q1bq1 w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 f5 exf5 h5 d4 d6 c4 Nc6 b4 Nb8 g4 hxg4 Be3 Na6 d5 Nb8 Bd4 Qa5 Ra2 Qb6 Rc2 cxd4 c5 Qc7 c6 Qd8 Rc5 dxc5 Kd2 Kf7 Kd3 Kf6 Kc4 Kg5 h4+ Kf4 f6 e5 c7 g5 f3 Kg3 h5 a5 b6 d3 b5 a4 h6 a3 b7 a2 f7 a1N h7 e4 b6 e3 Nh3 e2 Qd2 e1N Be2 Nc6 b8N Nec2 b7 Na3+ Kc3 c4 Na6 Nb3 b8Q Nh6 Rd1 Nb5+ Kb2 c3+ Ka2 c2 Kb2 c1R Qa7 Nf5 Nb8 Ba6 c8Q Rc4 Qe6 Rb4 Na3 Qd6 Qd4 Nba7 Kc3 Qd8 Qa2 Nd2 Nc4 Kg2 Qde5 g3 Nf4+ Kf2 Na5 g2 Q5f6 g1R Qa1 g4 Bf1 g3 Ne2 g2 d6 Qb6 Rb1 Qb5 Rb2 Qa4 Qd7 Qd1 Rc2 Ne3 Qh3 Nf5 Ra2 Rg8 Rb2 Rg7 Rc2 Be7 f8Q Bb5 Q8f7 Bf8 Qc4 Rh1 Qf4 g1Q Ra2 Rh2 Ra4 Rb1 Re4 Ba6 Re8 Rb5 Rc8 Nb1+ Kc4 Rb2+ Kc5 d2 Nc1 Rc2+ Bc4 Rhg2 Ne2 R2g4 Nc3 Bb5 Bg8 Bf1 Re8 Ra2 Ne2 Rb2 Q4g5 Rgb4 Qf4 Rc2+ Bc4 Be7 Rg8 Bf8 Rh8 Rcb2 Bg8 Ra2 Na6 Rc8 Nb8 Nd8+ Kd5 Rcc2 Qe4 Nc3+ Kc5 Ndc6 Qf4 Nb1+
4b3/k1b2P1r/bNrnQp2/1B1q4/Qq1Q1P1R/1Q2q1K1/P2RR3/rb3b2 w - - 0 1 legal: proof: c4 a5 e4 g5 b4 axb4 e5 d5 cxd5 Nd7 e6 f6 Bd3 Ne5 Bf1 Nf7 exf7+ Kd7 f3 g4 Ke2 g3 Bb2 Kd6 Bd4 Kd7 Bf2 gxf2 g4 Ra4 Nc3 Ra6 Ne4 Ra8 Ng5 Ra6 N5h3 Ra8 Nf4 Nh6 Ng6 Ng8 g5 h5 Ne5+ Kd6 Ng4 hxg4 Qc2 Kd7 Qb3 Nh6 Qd1 Ng8 d4 e5 h4 c5 f4 Kc7 h5 Kb6 h6 e4 g6 e3 d6 g3 Kf3 e2 h7 e1Q g7 g2 d7 c4 d5 c3 d6 b3 Qb1 b2 Rh4 c2 Qc1 b1B Rh2 Qb4 Kg4 Ne7 g8R Ka7 Nf3 b5 Ne5 Nf5 Qd1 c1R Qa4+ Ba6 Rh4 Rac8 Nc4 Rc6 Nb6 g1Q+ Kh3 Rd1 Rg2 Be4 Bc4 Re1 Rd1 f1B Rd2 Ra1 Kg4 Qd4 Rge2 Qe3 Bd3 Qa8 d8Q Beg2 d7 Bd6 Qe7 Bc7 d8Q Nd6 Bc4 Bd5 Qe4 Be6+ Qf5 Bd7 Qe6 Be8 Qb3 Qbc5 Qa4 b4 Bb5 b3 Qdd7 b2 Qeb3 b1B Qde6 Rf8 h8Q Qb4 Qh5 Rh8 Qhd5 Rh7 Qd4 Qe5 Kg3 Qd8 Re3 Qe7 Ree2 Qd5 Qh3 Qee4 Qe6 Qe3+
n1R1b1n1/2Q2r2/4QrPR/2PR2pp/2qnPb2/4nQKB/3N1Qn1/kb6 w - - 0 1 illegal: No possible last move, all moves rejected
Rn5N/qn1B3P/2P1Q2R/2Kp1b2/r1p4Q/1br3bQ/1P3k1n/r4bRR w - - 0 1 illegal: No possible last move
Qn4b1/PQ5p/1rb3BP/1PkNbr1Q/5B2/n1B1nqp1/4R3/b2Br1K1 w - - 0 1 legal: proof: c4 e5 g4 a5 d4 b5 dxe5 f5 a3 Ke7 g5 Ke8 b4 axb4 cxb5 Ra7 Bh3 Ra6 Bf1 Ra8 f4 g6 a4 Nh6 Ra3 Ra6 Rg3 Ng8 Rg4 Ra5 Na3 Ra8 Nc2 Bd6 Nd4 fxg4 f5 Be7 f6 Bf8 Nf5 gxf5 Kf2 d5 e4 Kd7 h4 c5 g6 b3 e6+ Kd6 h5 g3+ Kg2 f4 e7 c4 e8B d4 a5 d3 a6 c3 g7 b2 h6 b1B a7 d2 f7 c2 e5+ Kc5 e6 f3+ Kh3 f2 Kg2 Qd3 e7 Nf6 g8Q Be6 Qg5+ Nd5 Bc6 Bg7 f8B Bg8 Ne2 Be5 Bg7 Nb6 e8Q Nc4 Nf4 Na3 Qdh5 d1R Be4 Re1 Be2 f1N Bd1 Qf3+ Kg1 Bba2 Qgg6 Bad5 Rh2 Bc6 Nd5 Ba1 Bd2 c1B Re2 Bcb2 Bf4 Be5 Qgf5 Na6 Qh1 Rb8 Qfh5 Rb6 Bg6 Nb8 Bf6 Bf7 Qd7 Rf8 Qb7 Bg8 Bg7 Rf5 Qa8 Bc7 Bc3 Bd6 Q1h4 Be5 Qe7+ Kc4 Qg7 Kc5 Qgb7 Ne3+
1Qr2RrN/1b1nP2Q/2P3b1/2kp2Q1/2q2pPn/4bBb1/2K1NnN1/4Q1q1 w - - 0 1 illegal: No possible last move
1R1Q3K/r2qN1r1/1P1b1p1P/2k4N/1n3BN1/5bQr/PrpQ2b1/2b3Nn w - - 0 1 legal: proof: f4 h5 g4 a5 gxh5 e5 c4 exf4 b4 Ra6 Bg2 Ra8 Bc6 Ra7 Na3 Ra8 Rb1 bxc6 b5 d5 Rb4 axb4 cxd5 Ra6 Kf2 Ra5 Ke1 Ra8 Kf2 Ke7 Kf3 Kd6 Ke4 g5 h4 b3 d4 g4 h6 c5 b6 c6 h7 g3 h5 b2 Qe1 b1R Nc2 f3 Ne3 f6 Ng4 Bb7 Kf5 c4 Kg6 g2 e4 f2 Qc3 Be7 Kg7 f1B Rh3 c5 e5+ Kd7 d6 Kc6 e6 Rb2 d7 Nh6 Qa3 c3 Bf4 c2 Qg3 c4 d5+ Kc5 d6 c1B Rh1 Qc7 d8Q c3 d7 Bd6 e7 c2 e8N Na6 Rh3 Bf3 Rh4 Rf8 h8N Ra7 Ng6 Nb4 Ne7 Nf5+ Kh7 Rf7+ Kh8 Rg7 h6 Qb7 Rh5 Qd5 Rg5 Qe6 Qa8 Qd5 d8Q Qc6 Rg6 Qb5 Qab8 Qd7 Qe1 Ng3 Qd2 Bb5 Qbc7+ Bbc6 Qcb8 Nh1 Qbc7 Rf7 Ng7 Ra3 Nh5 Rg7 Ne2 g1R Qcb8 Rg3 Ng1 Rh3 Rg5+ Kc4 Ra5 Bg2 Ra8 Ra7 Qbc7 Kb5 Rb8 Bcd5 Qcc3 Bdf3 Qa3 Kc5 Qb3 Be2 Qg3 Bef3
q1Qb4/N2QP2P/Q1KpQn2/3Rrqp1/1k1q3r/6N1/1B1P1N2/1bb2b1b w - - 0 1 legal: proof: b4 e5 a4 b5 axb5 e4 f4 exf3 c4 g6 g4 Qe7 g5 Na6 c5 Bb7 c6 Qf6 b6 Bc8 b5 Nc5 Bh3 Nb7 cxb7 Qe7 Bf5 gxf5 g6 Qd8 g7 Be7 Ra4 Bf8 Rg4 f4 Rg6 hxg6 Kf2 Ke7 b8Q Kd6 e4 Kc5 h4 a5 b7 f5 e5 d6 h5 g5 e6 a4 h6 a3 b6 a2 Qe2 a1Q Qd3 Kb4 Rh5 c5 Rh4 c4 Bb2 c3 Rg4 c2 Nh3 c1B Nc3 Ra5 Qc7 Re5 b8N Bb7 Ne2 Nf6 g8Q Be7 Qd7 Qe8 Qa6 Bd8 e7 Bc6 Kf1 f2 b7 Bh1 Ng3 Qa4 Qge6 Qg8 Qd3 Qa7 Qa6 Qd4 Ne4 Rh7 Ke2 Qe8 Rg3 Qf8 Re3 f1B+ Kf2 f3 Ng3 f4 Nc6+ Kc5 b8Q Bd3 Qba8 Bb1 Na7 Kb4 Q8c8 Qe8 Ke1 f2+ Ke2 f1B+ Kf2 Qc3 Rd3 f3 Rd5 Qf8 Ne4 Qc4 Ke3 Qh8 Nf2 Qc7 Kd4 Qb8 Ng4 f2 Ng3 Bb5 Qac6 f1Q Q6a6 Qf5 Nf2 Bf1 Rc5 Rg7 Rd5 Rg6 h7 Rh6 Qf7 Qg7 Qfe6 Rh4+ Nge4 Ng4 Ng3 Re2+ Re5 Re4+ Kd5 Qgf6 Kc6 Re1+ Rd5 Qd4 Qcc7 Nf6 Qdc8 Re5 Q7d7 Qa8+
qb6/3q2p1/4k1P1/1bPn2p1/QNr1b1R1/1n2B1P1/4QBBb/nK2B1qQ w - - 0 2 legal: proof: b4 a5 f4 b5 d4 e5 a4 exd4 axb5 c5 f5 h6 g3 Ra6 Nc3 Rd6 Ra3 Rg6 Ne4 c4 Rd3 cxd3 Ng5 hxg5 fxg6 Qf6 Bd2 Qe7 Bc1 Qd8 Kd2 Ke7 e4 d5 h4 f5 c4 a4 e5 f4 e6 a3 h5 a2 b6 a1B b5 f3 b7 f2 h6 Nd7 b8B Bb7 b6 Nc5 h7 Nf6 Qh5 Nb3+ Kd1 d2 Kc2 d1Q+ Kb1 d3 c5 d4 Qh4 d2 Ne2 d3 Nd4 Nd5 Bg2 f1B Be5 Qa8 Nc2 Bd4 Nb4 Bg1 Bd4 Bh2 Bf2 Qe1 Qd4 d1N Bce3 d2 Qf4 Bc6 b7 Bfb5 b8B Qg1 Be5 Bb7 Be1 B7c6 B3f2 N1e3 Bd4 Nc2 Bde3 Nca1 Qf3 Bb7 Qe2 Kf6 e7 Ke6 e8Q+ Be7 Qf8 Bd6 Qf4 Bb8 Qfc4 Rf8 h8Q Rf4 Qh4 d1Q+ Qc1 Qd2 Qa3 Rc4 Qa4 Nf6 Qhh5 Qd7 Qh8 Qf1 Qhh5 Nd5 Qhf3 Bg1 Rh4 Bh2 Rg4 Qg1 Bf1 Nc7 Qh1 B7c6 Bg2 Be4+ Qd3 Nd5 Qc2 Bf3 Qe2 Be4+
Q1B1n2q/P4N2/1QqPqpnr/r2nQQ2/3n2p1/6PN/2NK2kr/3b1R2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 g5 Qg4 d5 cxd5 Bh6 Qe2 g4 Qd1 Bg5 hxg5 Kf7 Bd3 Kf8 Bf1 Ke8 f4 Nd7 a4 Nf8 e5 Qd7 e6 Qd8 Bb2 Nh6 Bf6 Ng8 Ra3 Nd7 Re3 Kf8 Re4 fxe4 f5 Ke8 Bg7 Nb8 f6 Qd6 f7+ Kd8 Bf6 exf6 Qb3 Ke7 Qd1 Qd8 f8N Kd6 d4 h5 g6 b5 e7 c5 e8Q c4 g3 h4 a5 c3 a6 c2 g7 c1Q Bd3 e3 Bc4 b3 Ne6 b2 Qf7 e2 Qg6 h3 Nc5 h2 Ba2 b4 Nh3 b3 Qf5 Be6 Nd2 b1Q Qd3 b2 Qb3 Qf5 Qf3 b1N Qe4 Rh6 Nf3 Nc3 Nfg5 Ne7 g8Q Ng6 Rf1 h1R Nb3 Rh2 Na1 Qc8 Qh7 Qh8 Nc2 Bf7 Qg8 Qe6 Qf5 Be8 Bc4 Ba4 Bb5 Bb3 Bd7 Ra7 Bc8 Ba4 Na3 Qc2 Qe8 Qce4 Qb1 Bd1 Kd2 e1N+ Rf2 Nc2 Nf7+ Kc7 Qb3 Qc6 Qa2 Qee6 d6+ Kb6 d5 Kc5 d7 Kd4 d6 Nd5 d8Q Ra8 Kc1 Ke3 Rf1 Nd4+ Nc2+ Ke2 Qb6 Ra7 Rh1 Ra8 Qaa5 Ra7 Qe5+ Kf3 Rf1+ Kg2 Qf8 Rb7 a7 Na6 Qf5 Nac7 Kd2 Ne8 Qg8 Nde7 Qae5 Nd5 Qa6 Rb5 Qb6 Ra5 Qf8 Nec7 Qe8 Qc4 Qec6 Ne8 Qa8 Qc6
b3K2N/bk4pQ/rB2q3/R1bR3b/1qR2R2/1p1Pn1q1/PQ1Q2P1/4r2r w - - 0 1 illegal: No possible last move
N1k1nb2/K1r3N1/1Q2P2r/R1nQ1np1/1Pp2P2/3b1pBN/r2QN3/2q3b1 w - - 0 1 legal: proof: f4 b5 b4 e5 a4 f5 axb5 d5 c4 h5 g4 hxg4 Ra3 e4 cxd5 Bc5 Rf3 Bf8 e3 Qf6 Bd3 exf3 e4 Qd6 e5 Qd8 Be4 fxe4 Kf2 Kd7 Ke3 c5 h4 g5 d4 a5 h5 c4 h6 a4 b6 a3 d6 g3 h7 a2 d5 a1R Kd4 e3 Kc5 e2 b7 e1B Nh3 g2 Qd2 g1N Nc3 Nc6 b8N+ Ke8 Nd7 Qc7 Nb6 Kd8 Ne2 R8a4 Na8 Qg7 Kb6 Nf6 d7 Na5 Ka7 R1a2 Bb2 Bg3 Bd4 Ne8 Bf2 Bh2 e6 Bb7 Bh4 Qb2 Bg3 Rg8 h8N Qc1 Ng6 Rh8 Ne7 Rh6 Nf5 Nb3+ Kb8 Nc5 Ng7 Na6+ Ka7 Ra5 Nc3 Ne2 Rd1 Nd4 Ne2 Bg1 Rf1 Qc2 Rb1 Qc1 Ra1 Rc2 Ra2 Rc5 Ra5 Ra2 Qd3 Rc7 Qd2 Ke7 d6+ Kf6 Ra3 Nc5 Ra5 Nf5 d8Q+ Be7 d7 Be4+ Kb6 Bd3 Qb8 Bf8 d8Q+ Ne7 Qd7 Nf5 Qd5 Ke7 Qbb7 Ra1 Ka7 Ra2 Qc6 Kd8 Qe4 Rc6 Qb6+ Kc8 Qd5 Rc7+
4b3/q2p3q/3r1n1Q/RQ1r4/Rp1bKPp1/RP3rPn/4B1Q1/2q1k1NQ w - - 0 1 illegal: No possible last move
K2q3N/pPB2b2/2q4Q/Pp2N1n1/r1rq1Qq1/1P5N/1k2p3/q2QQbR1 w - - 1 2 legal: proof: e4 d5 f4 dxe4 Qh5 e5 Qd1 e3 c4 b5 c5 e4 Be2 Be7 Bc4 Bf6 Bf1 Bc3 Qf3 Ba5 Qd1 Bb6 cxb6 Bh3 Qb3 Be6 Qd1 Bc8 a4 g5 g4 Nd7 Bh3 Ne5 fxe5 Kf8 Ra3 Ke7 Rc3 Ke8 Rc6 h6 Rf6 h5 Rf4 gxf4 g5 Qd3 Bf5 Qd8 Bg4 hxg4 Ke2 Ke7 h4 Ke6 d4 Kd5 b3 c5 e6 f5 a5 c4 b7 c3 h5 c2 g6 g3 g7 g2 e7 Be6 e8Q Nh6 g8Q Bf7 Qg5 Rc8 Nd2 Rc4 Bb2 c1Q Nh3 g1Q Nf3 Qg4 Rg1 Ra4 Ba3 Qc6 Bd6 Rc4 Bc7 Rh7 Ke1 e2 Kd2 e3+ Kd3 e1Q Ne5 f3 Qf4 f2 Qh8 Qb4 Qe1 e2 Qg7 Ng8 h6 f1B Qg6 Rg7 h7 Nf6 h8N Ne4 Qf6 Ng5 Qh6 Rg6 Ke3 Ke6 d5+ Kf6 Qfg3 f4+ Kd3 f3 d6 f2 d7 Ke6 Qf4 Kd5 Ke3 Qde7 d8Q+ Kc5 Qd3 Qd8 Qdb1 Qa4 Qed1 Kb4 Qe1+ Ka3 Qd3 Kb2 Qdd1 Qdf6 Kd3 Rg8 Ke3 Qa1 Kd3 Rc8 Ke3 Ra4 Kd3 Bc4+ Kd4 Qd8+ Bd6 Bf7+ Kd3 Bg2 Ke3 f1Q Bb8 Qg6 Bd6 Ra3 Kd4 Ra8 Kc5 Ra4 Bb8 Qff3 Bd6 Qfe4 Bb8 Qed3 Bd6 Bf1 Kc6 Qdf6 Kc7 Qd4 Bc5 Rd8 Bb6 Rd5 Kb8 Rc5 Bc7 Rcc4 Ka8 Qe7 Qef2 Qc6 Qfe1 Qed8+
Q3q2Q/rpB2r2/1q3R2/1b4b1/Pp6/1PrPpN1K/kN2N1p1/n2N2Qq w - - 0 1 legal: proof: g4 d5 d4 g5 h4 a5 e4 Nd7 exd5 Nc5 a4 Nd3+ cxd3 Kd7 Ra2 Ke8 Ra3 f6 Bh3 gxh4 g5 f5 Bg4 fxg4 Rb3 Nf6 Rb6 Ng8 Rb4 axb4 Kf1 Kd7 Kg2 Kd6 f4 c5 b3 h5 f5 e5 f6 h3+ Kh2 e4 f7 e3 g6 h4 g7 c4 Nc3 Qb6 Qd2 Ra7 Bb2 Rh7 Nf3 Be7 f8N Bd7 Qe2 Bb5 Qf2 Nh6 g8Q Bg5 Nd7 Rf7 Qa8 Nf5 Nd1 c3 Rf1 c2 Qg1 c1R Nde5 Rc3 Rf2 Ke7 d6+ Ke6 d7 Kd5 d8N g3+ Kh1 h2 Kg2 Rc1 Ne6 Rc3 Kh3 g2 Nc4 h1Q+ Kg4 h3 Nf4+ Kc6 d5+ Kc5 d6 Nd4 d7 Nc2 d8Q Na1 Ne2 h2 Qe1 Qf1 Qh8 Kd5 Kh3 Kc5 Nfe5 Kd5 Rf6 Qf2 Ng3 Kd4 Qh1 Qf3 Qg1 Qfc6 Ne2+ Kd5 Bc1 Qe8 Ncb2 Kc5 Bd2 Kd5 Be1 Kc5 Nf4 Kd4 Bg3 Rcc7 Nf2 Kc3 Ne2+ Kc2 Bf4 Rc3 Nfd1 Kb1 Nf3 Ka2 Bc7 h1Q+
N3n1b1/1n1Np3/4P3/ppN1RQB1/Q1b1p1rQ/2N3b1/P5kP/K2b1nr1 w - - 1 2 legal: proof: e4 d5 f4 c5 b4 Qd6 bxc5 Qe5 fxe5 dxe4 Nc3 g6 Nb1 g5 g4 Nh6 Na3 Ng8 Be2 Nd7 Rb1 Nb8 Rb3 h6 Rf3 h5 Rf4 gxf4 g5 Bf5 Bf3 Bc8 Bg4 hxg4 d4 Kd7 Kd2 Ke6 Kc3 Kf5 Kb2 b5 c4 a5 d5 g3 c6 f3 g6 Kg4 c5 f5 c7 f4 c6 g2 g7 Be6 c8N Rh4 c7 Nc6 d6 Nd8 d7 Nf6 g8N Bg7 Nc2 Ne8 Ka1 Nb7 Ne2 Kh3 d8Q g1N Ncd4 f2 Nf6 f1B Qa4 f3 Nd7 f2 Nc3 Ne2 Bg5 Rg4 Rg1 Bg8 Nb3 Ng3 Nbc5 Bfc4 Ncb6 f1B c8Q Bfe2 e6 Rb8 Na8 Bd1 Rf1 Bh6 Rf5 Nf1 Re5 Kg2 Qc6 Rc8 Qd5 Rc6 Bh4 Bf4 Bg5 Bg3 Qb8 Nc7 Qf8 Ne8 Qh6 Rc8 Qh4 Rc6 Qd3 Rd6 Qe3 Rd2 Qf4 Re2 Qf5 Re1 Rd5 Ne3 Re5 Rg1 Qf6 Nf1 Qf8 Kh1 Qf5 Kg2
4r1nb/Rp2nbpQ/6Pn/1P1K2k1/1P1n4/2Rb4/pnQN1pB1/Q1Q1R3 w - - 0 1 illegal: Other
1N3k2/p2Q1p1r/n1R2n1q/b4Q2/P2bR3/KPB1RPRn/2Q1br2/2nnb3 w - - 0 1 legal: proof: d4 g5 c4 b5 f3 bxc4 Na3 e5 dxe5 g4 Nb1 g3 Nd2 h5 Ne4 Bc5 Kd2 Ne7 Nf2 gxf2 g4 Bd6 g5 Ng8 Bh3 Bf8 Bg4 hxg4 Kc2 f1N e4 c5 h4 d5 a4 d4 g6 g3 b3 d3+ Kb2 g2 h5 d2 h6 c3+ Ka3 c2 e6 c4+ e7 c3 e5 Qb6 g7 Ne3 h7 Ng4 Rh4 Qh6 Bb2 c1B Ne2 g1B Nd4 c2 Nc6 N8f6 g8R Nf2 Rg7 Rg8 h8R Bb7 Re4 Nh3 Rg6 Rg7 Rg3 Ba6 Rb1 Rh7 Ra1 Kd7 e6+ Kd6 e8Q Bd4 e7 Bf1 Re2 Na6 Re4 Rc8 Nb8 Rc4 Qe2 Rc5 Ra2 d1N Q8b5 Bd2 e8Q c1N Ba1 Rg7 Bb2 Rc2 Qf5 Be1 Bc3 Be7 Qd3 Rf2 Rae2 Bd8 Qc2 Ba5 R2e3 Rh7 Qeb5 Be2 Rc8 Be5 Qbd3+ Ke7 Rc6 Kf8 Qdd7 Bd4
3n1b2/K4rpq/n2N2Q1/P5Br/RnN1qNQ1/q1p5/n1PN1kP1/3Qq2b w - - 0 1 illegal: No proof kernel
1B2b3/p2Q1n2/n1BK2kn/P1r3p1/3QbBP1/4pRNP/1bQ1rB2/3n1q1r w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 a4 f5 g4 h5 Na3 h4 Nc4 f4 Ra3 Kd7 Rd3+ Ke8 Rg3 hxg3 Ne3 fxe3 Ke2 Kf7 d4 e5 c4 b5 f4 g5 a5 b4 d5 b3 h3 b2 c6 b1B c5 g2 f5 Rh7 c7 Bd7 c8Q Be8 c6 Bg7 c7 Nh6 d6 Qf6 d7 Na6 d8B Bc2 Qb7 Rc8 Qd4 Bh8 Bd2 Kg7 Qbd5 Qf8 f6+ Kg6 Rh2 Re7 f7 Bg7 Qd7 Bd3+ Ke1 e2 Kf2 e1N Ke3 Nf3 Ne2 g1R Rf2 Rh1 Bg2 Bb1 Ng3 Bc2 Ke2 e3 Bc1 e4 Rf1 Qh8 f8B Ne5 Rf3 Nef7 Bd2 Re5 Bd6 Qf8 Be1 Rc5 Bf2 Rb8 c8Q Rb2 B8c7 Ra2 Qa1 Bb2 Bf4 Bb1 Bb8 Bc2 Qg1 Bd3+ Kd1 e2+ Kd2 e1N Ke3 Bb1 Qcc7 Nd3 Qd1 Bc2 Qe5 Bb1 Qc3 Bc2 Kd4 e3 Qa1 Ba4 Qc1 Bc6 Qb1 Be4 Qc2 Bc1 Qb4 Nb2 Qbc4 Nd1 Qcd5 Nh8 Ke5 Bb2+ Ke6 Qf5+ Kd6 Qf7 Qd4 Qf5 Bf1 Qf7 Bb5 Qc4 Ba4 Qf1 Bc6 N8f7+ Ke6 Ra3 Ke7 Rd3 Ke6 Rd2 Ke7 Re2 Ke6 Ne5 Kd6 Nef7+
6N1/4qbn1/1pP2pQb/5PB1/p1k1rN1Q/R6p/NP2rK1p/1Nq1Qn1b w - - 0 1 illegal: No proof kernel
2kB1B1N/1N1N1b2/2KP4/R2qP2n/r1n3n1/PqnB1N2/4rN1r/3r1b2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 f3 Ra3 f4 Ra8 a3 e5 fxe5 b3 Qc2 Ra6 Qb2 Ra8 Qa2 bxa2 g3 h5 Kf2 f5 Ke1 f4 Nc3 f3 Rb1 Be7 Rb4 Bg5 Rg4 Bf4 gxf4 hxg4 Kf2 Kd7 Ke3 a1R Ke4 b5 h4 c5 d4 g5 e3 b4 d6 b3 Kd5 b2 e4 b1N h5 c4 f5 f2 f6 g3 h6 g2 h7 g4 f7 g3 f8B Nc6 Kc5 Nf6 d5 Nd2 Nce2 c3 Rh3 c2 Nd4 Nh5 Bc4 f1B Bd3 Ra4 Ndf3 Nc4 Bg5 c1R Rh2 Re1 Nh3 g1Q+ Nf2 Ba6 e6+ Kc8 e7 g2 e8N Rad1 Nf6 N6e5 Nd7 Ng4 Kc6 Re2 e5 Qh1 Rh4 g1N Bf6 Qa5 B6e7 Qb4 Bd8 Rg8 h8N Qb3 Rh2 Rg7 Rh3 Rh7 Rh4 Ng3 Rh6 Qg2 Rf6 Rh2 Rf7 Nh5 Rf4 Nb6 Rc4 Qh1 Rc5 Nc4 Rb5 Rb2 Ra5 Ne2 Nc5 Nc3 d7+ Kb8 d6 Re2 Bde7 Bc8 d8N Be6 Ndb7 Bf7 Nd7+ Kc8 Bd8 Qg1 Ne4 Qd4 Nf2 Qd5+
4nBq1/1R3n2/n1r5/1KBR4/1r1P1R1P/BP1B4/B2k1n1p/N1r1r1qq w - - 0 1 legal: proof: c4 e5 d4 b5 a4 d5 axb5 dxc4 f3 e4 d5 Bc5 e3 Bd4 exd4 e3 h4 g5 Qd3 Be6 Qf5 Bd7 Qg4 Bf5 Qh3 Be4 fxe4 g4 Nd2 h6 Ndf3 gxh3 g4 h5 g5 Qd6 Nh2 Qd8 Ng4 hxg4 Ke2 Kd7 d6 Ke6 d7 f5 e5 Kd5 g6 Ke4 b6 a5 b3 c5 e6 c3 e7 f4 e8B f3+ Ke1 a4 b7 c4 g7 g3 Ne2 Kd3 Kd1 f2 Rg1 h2 Rb1 g2 Bf7 Nf6 g8R a3 Rg7 a2 Ba3 a1R Ng3+ e2+ Kc1 c2 Kb2 c1N Nf5 Na6 b8B Qf8 d8B Rh6 Bbd6 Ne8 B8e7 Rb8 Bdc5 Kd2 Ne3 e1N Bd3 f1Q Bfg6 Rb4 Nc2 Qg8 Bf8 Nf3 Rb7 Ng5 Bh7 Qe1 Rf1 g1Q Rf5 Rc6 Rd5 Nf7 Bhf5 Na2 Rc1 Qe4 Rf1 Qeh1 Rf4 Re1 Na1 Nc3 Bb1 Ne4 Ba2 Nf2 Bd3 Rbb6 Bab4+ c3+ Ka3 Rb5 Ka4 Rbb6 Ba3 c2 Ka5 c1R Ka4 Rb4+ Ka5 Rbc4 Kb5 Rb4+
k1r5/BNr4p/5PqP/1K2brn1/n5B1/N1bp4/2PNB1Qn/2q1NN2 w - - 0 1 legal: proof: d4 c5 b4 f5 e4 e5 a4 b5 bxc5 exd4 Ra2 a6 Rb2 a5 Rb4 axb4 axb5 Ra7 Nh3 Ra3 Ng1 Ra8 g4 Ra5 f4 Ra2 h4 Nf6 e5 Na6 Rh3 Ng8 Re3 Ra4 Re4 fxe4 f5 Bb7 Be3 Nb8 Bc1 Ra8 f6 Bd5 Nf3 Be6 Ng1 Bf5 gxf5 Ra5 Nc3 Ra4 Nb1 Ra8 Kd2 d5 c6 g5 h5 g4 b6 e3+ Kd3 b3 c7 Kd7 c8N Kc6 e6 Kb7 h6 b2 f7 g3 e7 g2 e8B e2 Qd2 e1B Be2 Qf6 Bg4 Bd6 f8N Qg6 Nf3 g1N Na7 Nf6 Qg2 Nbd7 Be3 Be5 Ne6 Nh3 Ng7 Ng5 Nh5 Bc3 Ne1 Rf8 Ng3 Rc8 Nb5 Ka8 Nd2 b1Q Na3 Qc1 Ngf1 Rc7 Be2 Ng4 Bf7 Nh2 Be6 Rfc8 b7+ Kb8 Bg1 Nb6 Bd7 Ka7 b8N Na4 Nc6+ Ka8 Na5 Qf7 f6 Qg8 Beg4 Qg6+ Ke2 d3+ Ke3 Bb2 Be2 Bec3 Nb7 d4+ Kf4 Ba1 Ke5 Bab2 Kd6 Ba1 Ne4 d2 Bdg4 d1R Ned2 d3 Kd5 Bab2 Bc5 Be5 Kc4 Bbd4 Kb5 Bc3 Nef3 Re1 Ba7 Rd1 Ne3 Rf1 Ne1 Rf3 Nef1 Rf5
RR2b1bR/3Bk2P/n4n2/1R2pp2/4q3/P1nrbB1B/1P3n1R/qN5K w - - 0 1 illegal: No proof kernel
3q1Nqn/3rPRK1/1N6/rb2R3/RB1RP1R1/P3q3/1p1q2b1/1nkNq1b1 w - - 0 1 illegal: No possible last move
2qnbB2/1B2NQ2/n2nNNpN/Nr2Pbq1/3b3P/6k1/P7/KBr1q2n w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 Na3 e5 fxe5 d5 cxd5 Bg7 Rb1 Bf8 h4 Ne7 g4 Bf5 Rh3 Nd7 Rf3 Nf6 Rf4 gxf4 g5 Bc8 g6 Nd7 g7 Nb8 Rb3 Ng8 Rg3 Nh6 Rg2 Ng8 Rg6 hxg6 d4 Kd7 Kd2 b5 Kc2 f5 Kb1 c5 e4 c4 e6+ Kd6 e7 b3 e8B b4 Be2 f3 Nc2 f4 Nh3 f2 Ba4 f1Q Bd7 b2 Qe1 f3 Bd2 c3 Nf4 f2 Qc1 Na6 Bf5 Qe1 Na1 f1N Beg4 Nh6 g8N Bd7 Ne6 Rc8 Nc5 Be8 Nab3 Qg5 Nf6 Ng3 Na5 Nh1 Ne6 Nf7 Bf3 Nd8 Qd1 Bg7 Bf4+ Ke7 d6+ Kf7 d7 Rh5 d5 Rc4 Nh7 Bd4 Nf6 Ke7 Bc1 Kd6 Qb3 Ke5 d6 Rc7 Nf4 Rc8 Qf7 Rc5 N4d5 Rc4 Ne3 Kf4 Ned5+ Kg3 Ne7 Rc5 Bg2 Rb5 Bf3 Rh8 e5 Rf8 Kc2 b1N Bb7 Nd2 Ba3 Nc4 Kb3 c2 Bd3 c1Q Bb1 Ne6 d8N Rh8 d7 Nd6 Bf5 Qc8 Bb1 Be3 Kb2 b3 Ka1 Rf8 Ndc6 Nd8 Neg8 Ba7 Nh6 Rg8 Kb2 Rg7 Bb4 Rh7 Ne7 Bd4+ Ka3 b2 Kb3 Nc6 d8N Rh8 Ne6 Nd8 B1e4 b1B Ka3 Bg1 Kb2 Rf8 Ka1 Bd4+ Bc3 Nb8 Qg7 Qd1 Nec6 Nc4 Nh7 Rf6 Qf7 Rf1 Nf6 Na6 Bb2 Qe2 Bf5 Rc1 Bc2 Ba7 Ba3 Qe1 Bf8 Nd6 Be4 Rc3 Ne7 Bd4 Bf3 Bf5+ Bd1 Qee3 Bc2 Qe1+ Bb1 Rc1+
5n2/BrqR4/P3PNk1/1R3nN1/4Nq2/P3bRqb/2bpRR2/Kb2rr2 w - - 0 1 legal: proof: f4 e5 g4 h5 b4 c5 d4 a5 bxa5 g5 Qd2 cxd4 Bh3 Nh6 fxe5 Ng8 Qf4 gxf4 g5 Bc5 Be6 Bf8 Bg4 hxg4 Kd1 f5 e4 Kf7 h4 b5 c4 d5 Kc2 b4 Kb2 b3 a6 d3 c5 d2 e6+ Kg6 e7 d1B e8R g3 e5 g2 c6 d4 c7 d3 a3 f3 Nh3 g1Q Rh2 f2 Be3 f1R Ba7 d2 Nc3 f4 Ne4 f3 Rb1 f2 Ka1 Bf5 c8R Nh6 Rc3 Qg3 Rf3 Bc5 e6 Bc2 Rf8 Qdc7 h5+ Kh7 Rf6 Be3 g6+ Kg7 Nhg5 Nd7 Rf8 Bh3 R8f4 Nf5 h6+ Kf8 h7 Kg7 Rg2 Nf8 Rh2 Kh6 g7 Rb8 g8N+ Kg6 Ngf6 Rb7 Rg2 Rg8 h8R Re1 Rh5 f1Q Re2 Qff2 Rh7 b2+ Ka2 Qfh2 Rd7 Rg7 Rff2 Rf7 R4f3 Qgf4 Rc1 b1B+ Ka1 Qg2 Rd1 Qgg3 Rc1 Bd1 Rc5 Bdc2 Rb5 Rh7 Rb2 Bf1 Rf7 Rh1 Rb5 Bh3 Rd7 Rhf1
1K3n1k/1P2bq1p/3r1pR1/RNN2NR1/2b3q1/n2P4/rPR1n3/1QbqR3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f6 axb5 f5 f4 Bb7 e5 Bc6 Bd3 Bh6 Be4 fxe4 d3 Bd7 f5 Bf8 f6 Be6 Bg5 Bc8 f7+ Kd7 Bf6 exf6 Ke2 Ke7 Ke3 c5 Kf4 a5 g4 e3 g5 e2 g6 e1N b6 c4 e6 h3 b7 a4 g7 h2 Qc2 c3 Ke4 a3 Nf3 a2 Ne5 Qe8 Nd7 Nh6 g8R Nf5 Na3 Nd4 Nc5 Nd7 Rg5 Ne2 Qb1 c2 Nb5 c1B Rf1 Nc2 Re1 Na3 d6+ Kd8 Kd5 Be7 Kc6 Nf8+ d7 h1Q+ Kb6 Qe4 Rg6 Ra4 Rg5 Rd4 Ka7 Qg4 Ka8 Rd6 Kb8 Ng6 f8R Rg8 Rf7 Nf8 Rfg7 Qf7 R7g6 Rh8 Qc2 Rg8 Rb1 a1Q Qd1 Qa2 Ra1 Qb3 Qc2 Qba4 Qb1 Qd1 Rf5 Nc4 Ra5 Na3 Rf2 Ng1 Rc2 Ne2 Rh6 Rg5 Rg6 Rgd5 Rg5 Ra6 Rg6 Rdd6 Rh1 Qg7 Rh4 Rd4 Rh2 Nc4 Rh1 Bd6+ Nc7 Ke7 d8R Bd7 Rb5 Ra2 Ra5 Na3 Rg1 Bb5 Re1 Bc4 Rg5 Ng6 Rg8 Qf7 Rg7 Nf8 R7g6 Qg8 Na6 Bc5 Nb5 Ke8 e7 Kf7 e8N Be7 Ng7 Rd6 Nf5 Qg7 Rg1 Kg8 Re1 Kh8 Nc5 Qf7
r4k2/bnb4R/3PBpBP/2qbp3/R2NR3/BPb3R1/2nq3b/R1K2r2 w - - 0 1 illegal: No possible last move
1N3N1R/1q1R1brp/1K1Pqr2/3rP1bP/3N3N/r3N2n/p3R1bb/1B5k w - - 0 1 legal: proof: c4 d5 d4 dxc4 a4 e5 d5 b5 axb5 Bh3 Qd4 Bc8 f4 exd4 e4 g5 e5 Na6 f5 Nc5 Bf4 Ne6 fxe6 gxf4 Kf2 Ke7 h4 a5 g4 c5 b4 f5 g5 a4 b6 a3 b5 d3 g6 a2 g7 f3 Ke3 f4+ Ke4 c3 h5 f2 b7 c2 b8R c1B b6 d2 b7 d1R Rh3 f3 Rg3 c4 Rh3 c3 Rh1 c2 Ba6 f1R Rh2 f2 Rh1 Bg5 Nd2 c1Q Kd4 Qc6 Rh3 Qde8 Rd3 Nf6 Nb3 Ng4 Nf3 Rg8 Nh4 Qc7 Bc4 Ra3 Bb5 Qcd7 Kc5 Bf4 Ra8 Bh2 b8N Qb7 Nd4 Qg6 Ba4 Bd7 Bb3 Be8 Bc2 Bf7 Bb1 Qd7 Ndc6+ Ke8+ e7 Qb7 Bc2 Qf5 Na6+ Kd7 Rc1 Bf4 Bb1 Bh2 Rc2 Qf6 Rdd2 Qg6 d6 Ke6 e8N Be7 Re2 Bg5 Nf6 Rd2 Nd7 Qf6 Nf3 Kf5 Nh4+ Kf4 Re8 Kg3 Nab8 Qe6 Rc8 Qa8 Kb6 Rd5 Nd4 Kh3 R2c7 Kg3 Nhf5+ Kg2 Nh4+ Kh1 Rd8 Rd1 Rf8 f1B Rfc8 Bg2 Rf8 Rh8 g8N Rf1 Nh6 Rf6 N6f5 Nf2 Ne3 Rg8 Re8 Rgg6 Rh8 Rg7 Nf8 Nh3 Rd7 Qb7+
2nq1R2/rp2q3/1bBPPNP1/1qN2Nb1/bk2K3/2np1r2/3p4/2N1RRN1 w - - 0 1 illegal: No proof kernel
8/6QB/1rBRq2p/3Pbr1k/1n1RR2P/Prpp2br/n2K1R1R/1b3B2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Bb4 d6 Bc5 Bb2 Be3 d4 Bg5 d5 Be7 Bd4 Bf8 e4 f5 f4 exd4 e5 Qd7 Ne2 Qd8 Nd2 g5 Ne4 fxe4 f5 Ra7 Nf4 gxf4 Qc1 Ra6 Qd1 Ra8 g4 Kf7 h3 b5 g5 c5 a3 c4 a6 e3 f6 Kg6 f7 e2 e6 f3 a7 b4 e7 f2+ Kd2 e1B+ Ke2 b3 e8R b2 d7 b1R Qb3 Qb6 d8R Kh5 g6 Bg7 f8R Ne7 Qe3 Rb3 Qe5+ Bf5 Rd1 Na6 Rg8 Nc6 Rd7 Nab4 Rgf8 Na2 Rd6 Rb8 a8B Ncb4 Bc6 Qa6 Rh2 Rb6 Qg3 Be5 g7 Bb1 g8B Qc8 Qg7 Qe6 Bg2 f1R Rf2 h6 h4 Rh1 Bh7 Rf8 Bf1 Rf5 Rfg2 B1g3 Kd2 Ra6 Rf2 Rb6 Re1 d3 Re4 Qd7 Rd4 Qc8 Rhg2 Rh3 Rh2 Qe6 Rf8 Rg5 R8f4 Rf5 Rfe4 c3+
4b2N/b1pr1P2/3rpn1k/P3Np1B/n1P1BNQ1/r7/3Kb1nB/BB2r3 w - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 e4 f5 exd5 Ra3 h5 Qd6 g5 Qg6 hxg6 Ra8 a4 Ra5 Ra3 Ra7 Re3 Ra8 Re4 fxe4 f4 Nc6 f5 Ra5 f6 Ra8 f7+ Kd7 Rh3 Nb8 Rf3 Na6 Rf4 Nb8 Rf6 gxf6 c4 b5 d4 h5 g7 e3 g6 e2 d6 Ke6 d7 Kf5 d8N b3 d5 b2 d6 h4 d7 e6 Qd4 b4 Bf4 b3 Be5 Kg5 Nc6 h3 d8B h2 Kd2 h1B Nf3+ Kh6 Nh4 e1N Be2 Nd7 Bg3 Nb6 Qg4 Ng2 Nc3 b1R Nd5 b2 Nf4 Bc5 Bh2 Re1 Ne5 b1R a5 Ra1 Bd1 Ra6 Bf3 Bd7 Bd1 Ne7 g8B Be8 g7 Ra3 Bh7 Ned5 g8B Na4 Be4 Rd6 Bgh7 Ba7 Nhg6 Rf8 Nh8 f5 Bf6 Rd7 Bg6 Rg8 Bdc2 Rf8 Be7 Nf6+ Bd6 Rg8 Bb1 Rf8 Bh5 Rg8 Qh3 Rgg3 Qg4 Rgd3+ Kc2 Rd4 Bc5 R4d6 Bd4 Nh4 Bc3 Bf3 Ba1 Bd1+ Kc1 Be2+ Kc2 Nd5 Kd2 Ng2 Bbc2 Nf6+ Bcd3 Bd4 Bb1 Ba7+
5R1q/PR2ppk1/1KR1p1N1/1p1B2p1/Rb1q1n1p/4Rb1P/1P2r2b/N2N4 w - - 0 1 illegal: No proof kernel
n2b4/2pRr1rq/b1P1N1nN/KRn3r1/2N2N2/2b2pPR/N2rQPp1/6k1 w - - 0 1 legal: proof: e4 h5 a4 b5 axb5 d5 Bc4 dxe4 Bf1 h4 d4 h3 g3 Rh5 Bg2 hxg2 h4 Rh7 h5 Rh8 Bg5 g6 Bh4 g5 Ra4 gxh4 Ra6 Bg7 Ra1 Bf8 Kd2 Kd7 Kc3 Ke6 Kb4 Kf5 c4 a5+ Ka4 e5 b4 h3 c5 e3 h6 e2 h7 Kg4 c6 f5 b6 h2 b7 f4 d5 f3 d6 e1R b5 e4 b6 e3 d7 e2 Ra3 Qh4 d8R Ne7 Qd2 Ng6 Re3 Be7 Qb2 Nd7 b8N Rg8 h8N Rg7 b7 Qh7 Rg8 Bd8 Re5 Nb6+ Kb5 a4 Nd2 a3 Nd7 a2 b8N a1B Na6 Ra7 Ndc5 Na8 Nb4 Ba6+ Ka5 Rd1 Rge8 e1N Nh3 Nd3 Ne6 Nc5 Nc4 Rd2 Nhf4 Re7 Qa2 Bc3 Nf7 Rb7 Rd1 h1R Rh8 Rb8 Rd5 Rh5 Rd7 Rg5 Rb1 Rd1 Qe2 Rd2 Nd3 Kh3 Nh6 Kh2 Ndf4 Be5 Rb2 Kg1 Na2 Rg7 Rd6 Rb3 Rd7 Re3 Rb5 Bd4 Nf8 Ree7 N8e6 Qg8 Ng4 Bf6 Rh3 Qh7 Nh6 Bc3+
2BB2r1/BKB1bprp/R1BP2r1/Q1p1nP2/b3b2B/2P1nN2/1rk1qn2/8 w - - 0 1 illegal: No proof kernel
2N2k2/rb3Nb1/1nQ1Q2r/bQKP1p2/q3bP2/1Bb1PQ2/q2Q3n/1Br5 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 d4 g5 b4 g4 d6 Nh6 d5 Ng8 Ra3 Qh4 Rd3 Qd8 Rd4 exd4 h4 h6 h5 Nf6 Rh3 Ba6 Bg5 Nfd7 f4 Nf6 Rf3 gxf3 g4 Ng8 Be7 Qd7 g5 Bc8 g6 Qd8 Bg5 hxg5 Kd2 c5 Kd3 a5 Kc4 a4 g7 g4 h6 g3 b6 d3 b5 g2 h7 a3 b7 d2 b6 f2 Nf3 g1B Ng5 a2 Na3 a1B Nb5 Bc3 Na7 Nh6 g8B Bfg7 d7+ Kf8 e3 Ng4 Qc2 d1Q Qd2 Nh2 Kb5 c4 Kc5 f6 Nf7 Qa4 Be2 f1B Bd1 Bg2 Bb3 Qe8 d8Q Be4 Qc7 Qa2 Qc6 Bf2 Qe6 Be1 Qc6 Bd7 Nc8 Ra7 Qe6 Ba5 Qc6 c3 Qe6 Nc6 b8Q c2 b7 Ne5 Qc7 Bc6 b8Q Nc4 Qb5 Bb7 Qcc6 c1R Nd8 Bc2 Bf7 Bd3 Bg6 Be4 Nf7 Bc3 Bf5 Nb6 Bg6 Bf3 Bb1 f5 Qb4 Be4 Qbb5 Rg8 h8Q Ba5+ Qc2 Bec3 Qh5 Rh8 Qf3 Rh6 Qd2 Bc2 Qed7 Qe4 Qce6 Qea4 Qdc6 Be4
b4rR1/1NPRQ1r1/R1RR2n1/3Q3q/q7/P1b4K/rr3kPp/1nb1N1b1 w - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 g5 hxg5 f5 exf5 c5 Ba3 b3 Bb4 cxb4 c5 b2 Bc4 dxc4 Kf1 Kd7 f4 Kc6 d4 Kd5 c6 Ke4 g6 Ke3 d5 b5 g7 e5 d6 h5 d7 e4 f6 b3 f7 c3 f5 b4 f6 c2 Qg4 c1B Na3 b1Q Nf3 b2 Nb5 h4 Ng5 h3 Nh7 h2 Ng5 b3 Ne6 Bb7 Nbc7 Qe8 d8R Bc5 f8Q Qh5 f7 Nd7 Qh4 Ne5 Qd6 Nf6 f8R Ng6 g8R Qc2 Nf4 b1R Na6 b2 Qd5 Qa4 Rd7 Ra7 a3 Ba8 Nd3 Bd4 Ra2 Ra1 Ne1 b1R Rc2 Ra2 Nc5 Rbb2 Nb7 Bc5 Re8 Bd4 Re6 Bc3 Qd1 Nd5 Qe7 Bd4 Rc4 Nc3 Rf6 Bb6 Qd5 Nb1 Rd4 Rh7 c7 Rg7 Rd2 Ra5 Rd1 Bd4 Ra6 Rab5 Nd8 Rb8 Nb7 Rf8+ Nf3 Kf4 Ne1 e3 Rd2 Bc3 Rc2 e2+ Kf2 Bf6 Rcc6 Bc3 Nf3 Kg4 Rd1 e1B+ Kf1 Bf2 Ne1 Kf4 Rd3 Bc5 Rd2 B5b4 Kf2 Bc5+ Qd4+ Kf5 Kg3 Bb6 Qc4 Ba7 R2d6 Bg1 Qef7+ Ke5 Qb3 Ke4 Qbd5+ Ke3 Qe7+ Qe5+ Kh3 Kf2 Nc2 Qe2 Ne1 Qh5+
8/1P1prrNN/4N2q/n1PQN3/1qb2r1k/bp5P/2R1R1rN/n1Q3qK w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 c5 d4 cxd4 g4 h5 gxh5 Qc7 Bc4 Qb6 Bf1 Qd8 a4 Qc7 b5 Rh6 b6 Ra6 Ba3 Ra7 Bb4 axb4 a5 Rh8 a6 Ra8 a7 Qd8 Ba6 bxa6 Kf1 Kf7 Kg2 Kf6 c4 Kg5 f4+ Kh4 f6 g5 h6 e5 h3 g4 f7 d3 h7 g3 f5 a5 f6 e4 Ra4 e3 Ra1 e2 Qf1 e1Q Ra3 a4 Qe2 d2 Qe6 d1R Rd3 a3 Nd2 b3 Qe3 a2 Rh2 a1Q Ne2 Nh6 Nd4 Nf5 Ne6 Ba6 Rc3 Nd4 Nf1 Nc2 Qc1 Nc6 Kh1 Ba3 f8N Rd4 f7 Qg5 c5 Rf4 Re2 Re8 a8Q Bc4 Ng7 Na5 Nfe6 Rhf8 h8N Re7 Qd5 Qh6 b7 Qd2 Nh2 Qb1 Qe1 Na1 Rc2 Qb4 Qc1 g2+ Kg1 Rfe8 f8N Ref7 Nh7 Ree7 Ng6+ Kg3 Ne5 Kh4 Rcd2 Qbg6 Nhg4 Qgg5 Kh2 g1R Rc2 Rg3 Kh1 Rg2 Nh2 Qg3 Neg5 Qe3 N5e6 Qg1+
7k/P1Q1qn2/NN2pn2/Qnp2RR1/b1Pr2N1/1NPr2Nb/1K5b/n6b w - - 0 1 legal: proof: e4 f5 exf5 a6 b4 c6 b5 axb5 c3 Qa5 c4 Qc3 dxc3 b4 f4 g5 g4 Kf7 f6 Ke8 f5 h6 Bf4 gxf4 g5 h5 Bh3 Rh6 Bg4 hxg4 Kf1 Rh4 Ke1 Rh8 Kd2 Kf7 Kc1 b5 a4 d5 h4 d4 a5 e6 h5 f3 a6 d3 h6 g3 h7 c5 a7 g2 Ra3 b3 Kb2 b4 Ra5 d2 Ra6 f2 Qf1 d1B Nd2 Bb7 Rh5 Nh6 Qe2 f1B Ra1 Nd7 Qe5 Bd6 Ne2 g1Q Ng3 Rhd8 h8Q Bh1 Rb1 Bb8 Qc7 Bh3 Rc1 Bc2 Rf1 Qg2 Qa5 Qb7 Qh7+ Kf8 g6 Nf7 Rg5 Qc7 Qh6+ Kg8 g7 Qd6 Qh4 Qe7 Qf4 Kh7 g8N Kh8 Nh6 Bd1 Kb1 b2 Ng4 Ba4 Nb3 Bc7 Kc2 b1N Kb2 Na3 Rf2 Bb8 Qfc7 Nc2 Rf1 Na1 Rf2 Nd6 f7 Nf6 f8N Nf7 Rf4 Rd3 Nd7 Rd4 Nb6 Rd3 Qb7 Be5 Qc7 Rad8 Rf2 R8d4 Rf1 Nd7 f6 Bd6 Rff5 Be5 Ne4 Bh2 Ng3 Nd8 f7 Nf6 f8N Nf7 Nd2 b3 Nfd7 Qf8 Kb1 b2 Nb8 Qe7 Ka2 b1N Kb2 Na3 Nb3 Nb5 Na6 Rf4 Nd5 Re4 Nb6 Red4
Q4R2/qRnK1rqp/pP6/1rkn1B2/1b1q1RQ1/1R1q2r1/PR2P1n1/6B1 w - - 0 1 illegal: No possible last move, all moves rejected
2nN2Qb/3q2PP/N1R2p2/2p2n1r/KprknnQ1/6P1/Q1Q1b3/n3R2Q w - - 0 1 legal: proof: c4 a5 f4 g5 d4 e5 b4 axb4 d5 h5 fxg5 h4 g3 h3 Bg2 hxg2 Bb2 d6 c5 Nc6 cxd6 Nb8 Bd4 exd4 Kd2 Kd7 Kc2 c5 Kb3 b5 a4 f6 h4 d3 e4 d2 e5 Na6 a5 Rh5 e6+ Ke8 e7 Kf7 e8Q+ Kg7 g6 Rb8 d7 Rg5 h5 Qc7 d8Q Ne7 d6 Qd7 Nh3 g1N Na3 Ne2 Nc2 Nf4 Qg4 d1N Re1 Ne3 h6+ Kg8 Qc7 N3f5 Qc6 Rh5 Ng5 Bb7 Qd8 Nc8 Qh1 Bf3 Nf7 Be2 h7+ Kg7 Qe8 Rb7 Nd8 Ra7 Kb2 b3 Ka3 b2 Qee4 Nb4 a6 b1N+ Kb3 Ra8 a7 Nc3 Ra6 Rb8 Qeg2 Ne4 a8Q Kh6 Rb6 Bg7 Qa2 Bh8 g7 Ra8 Rc6 Ra4 Ne3 Nc2 Nd5 Rc4 Nc7 b4 Ka4 Na1 Na6 Bd1+ Qgc2 Be2 Qgh4 Kg6 Q4h3 Nh6 Qh4 Kf5 Q4h3+ Ke5 Qg4 Qc7 d7 Nf5 Nb7 Nfe7 d8Q Qd7 Qg8 Kd4 Nd8 Nf5
6RR/1pb4q/2N2pq1/n4p2/P2bQ1R1/Pk1r4/nPbRRK2/1N1rbQ2 w - - 0 1 illegal: No possible last move
2K4r/1r2Rq2/P1N1pn2/Q2qPNQb/2Rr3N/2pqp2q/2N1Pn1k/4N3 w - - 1 2 legal: proof: d4 e5 b4 b5 g4 h5 gxh5 e4 c4 Bd6 Bb2 Be5 Bh3 a6 Be6 fxe6 dxe5 bxc4 b5 a5 Ba3 Rh7 Bd6 Rh8 Bb4 axb4 Kd2 Kf7 Ke3 d5 Kd4 g5 Kc5 g4 a4 g3 f4 c6 h4 e3 f5 g2 h6 c3 h5 c2 b6 b3 b7 d4 a5 b2 h7 d3 h6 d2 f6 Kg6 a6 Kg5 f7 Kf4 f8Q+ Kg3 Qe7 Ra7 Ra4 c1Q+ Rc4 Bd7 Kd6 c5 Nf3 g1Q Qe1+ Qf2 Na3 b1Q Nc2 Nc6 b8N Nb4 Nc6 d1R+ Qd2 Nf6 Nfe1 Nd3 Qa5 Qd2 Rg1+ Kh3 Rg7 Kh2 Rf7 Qg8 Qed8 Qgg3 Re7 Qg4 Qg8 Rb7 Qg5 Rb5 Kc7 Be8 Kc8 Rb7 Re4 Qh3 Rc4 Rf8 h8N Bh5+ Nd8 Re8 Ng6 Rh8 h7 Qff3 Nh4 Nf2 Nf5 Qdd5 Rf7 Rd4 Re7 Rf8 h8N Qb3 Rh7 Qd3 Ng6 Rh8 Re7 Qf4 Ngh4 Qff3 Ra4 c4 Rb4 c3 Rc4 Ng8 Nc6 Qf4 Ng3 Qf7 Ngf5 Nf6+
1NB1r2K/2p2p2/2q2P2/QNq5/Q1PBPbq1/1N2p2N/Nn2q1kn/r2q1b2 w - - 0 1 legal: proof: e4 d5 h4 b5 b4 g5 a4 gxh4 axb5 d4 Ra3 Bg4 Re3 Bc8 g4 dxe3 d4 e5 d5 Be6 Rh3 Bc8 Rf3 Ne7 Rf6 Ng8 Re6+ Kd7 Ra6 Ke8 Rc6 Bh6 Rc4 Bf8 Rd4 exd4 Ke2 Kd7 Kf3 Kd6 Kf4 a5 c4 h5 b6 a4 g5 a3 f3 h3 g6 d3 b5 d2 g7 a2 b7 a1Q b6 h4 Qe1 d1Q Na3 h2 Nh3 h1Q Bb2 Qg1 Bd4 Qa2 Qa5 Nd7 Kf5 Qae2 b8N Ngf6 g8Q Bh6 f4 Ng4 b7 Nb6+ Nd7 Qe7 b8N Na4 Qe8 Nh2 Bg2 Qf8 Kf6 Nb2 f5 Bf4 Nc5 Be6 Bf3 Qg4 Qea4 Qe8 Bg2 Qc6 Nb3 Re8 Bf3 Qde1 Bg2 Qb4 Bf3 Qbc5 Bg2 Qh5 Kg7 Qhf3 f6 Qg4+ Ng5 h3 Bf3 Qg3 Bg4 Bd7 Be6 Qgg4 Kh7 Nf1 Bf5 h2 Nh3 h1Q Be6 Nh2 Bf5 Re7 Kh8 Qhd1 Be6 Be8 Bc8 Bd7 Bc3 Qdd4 Nb5+ Ke5 d6 Re8+ Kh7 Be6 d7 Ra6 d8N Ra7 Bb4 Qdd1 Bc3+ Qcd4 Bb7 Bh6 Qa1 Qd6 Qb6 Qf4 Ng5 Bh3 Bc8 Qfg4 Ndc6+ Kf4 Nb4 Bf1 Nh3+ Kf3 Qba6 Q4e5 Bd4 Qec5 Qb6 Ra3 Qa5 Qdc6 Qa2 Kg2 Qa1 Bf8 Kh8 Ra4 Qb1 Ra1 Qba2 Qge6 Q2a4 Q6g4 Na2 Bh6+ Kh7 Bg5 Kg7 Bf4+ Kh7 Re5 Kh8 Re8+
B2r1Q1B/b3p2Q/1BK1n3/1r1nPqN1/1p1B1p1P/3k1N2/b2p1P1B/2r2b1n w - - 0 1 illegal: No proof kernel
1nb2R2/p5Q1/3rpK2/4PR1Q/kb1Nnp2/P1p1NbN1/1p1bNPN1/r1b5 w - - 0 1 legal: proof: c4 c5 b4 d6 Bb2 cxb4 c5 Bd7 c6 Bf5 Bd4 Be6 Bc5 Bc8 g4 dxc5 Qb3 h5 Bg2 f5 Qd1 f4 Bf1 Qd5 Bh3 Qf5 gxf5 Nd7 Bg4 hxg4 Qb3 Nb8 Qa4 Rh7 Qd1 Rh8 e4 g5 Ke2 b5 Kd3 c4+ Kd4 e6 Ke5 g3 d4 g4 h4 g2 h5 g3 d5 b3 d6 b4 c7 Kd7 f6 Kc6 f7 Kb5 h6 b2 a3 b3 d7 Nf6 d8N Bb4 f8N Bd2 h7 Ka4 Ne2 g1B Ng6 g2 Rh4 Bh2 Rh5 g1B Rf5 Bg3 Nc6 B1h2 Ncd4 Bh4 Ng3 Rd8 h8Q Rd6 Qg7 c3 Nge2 B2g3 Qh1 Bc1 Nd2 b1B Nf1 b2 Ne3 Bg5 Qhh6 B3h4 Qh5 Ba2 Rb1 Bd5 Ra1 Bd2 Rh1 Bh6 Rh2 B4g5 Nh4 Bc6 Qgg6 Bf8 Nhg2 Bgh6 Rh3 Bhg7 Rg3 Bh8 Qgh7 Be7 Rg8 Bc1 Rf8 Bg7 Nb3 Rd1 Nbd4 Bb4 Re8 Bgf8 Qg7 Bfc5 Rf8 Bd2 Qgh8 Ra1 Qg7 Ba6 c8N Bd5 Ne7 Bc8 Nf1 Bdb7 Nd5 Bb6 Nf3 Bbe3 Nfd4 Bc1 Nfg3 Bed2 Nc2 Ne8 Nde3 Nd6 Kf6 Bc6 e5 Bf3 Ncd4 Ne4+ Kf7 Nc6 Nb3 Rb8 Kg6 Rb6 Nbd4 Nb8 Kf7 Rd6 Ke7 Nc5 Kf6 Ne4+
r2Q2nN/P2N4/2b3Q1/K4Pn1/n1qrrP1R/2n2kN1/4N1bR/4br1R w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 gxh5 f5 cxd5 f4 a5 b3 a6 f3 exf3 Bh3 f4 Bxf1 Ba3 Bh3 Bc5 Be6 f5 Bc8 Ba7 Nc6 Bb8 Nxb8 d4 Kd7 Kd2 Kd6 Kc3 c5 h4 b5 f4 e5 h6 g5 h7 c4 Kb4 e4 a7 b2 h5 e3 h6 g4 Na3 b1B Qe2 g3 Qf1 e2 Nc2 e1R Rh5 g2 Nh3 g1N Ra3 c3 Rb3 Bb7 Ne3 c2 Qc4 c1R Rh4 Be4 Rb1 Bg2 Nf1 Re4 Ng3 Qc8 Ka5 b4 Qa6+ Bc6 Qb6 Nf3 Ng1 b3 N1e2 Rc4 Rbh1 b2 Qa6 b1N R4h2 Kd7 d6 Nc3 d5 Rcd4 Qb6 Ng5 Qa6 Ke8 d7+ Ke7 d8N Kd6 Ne6 Nd7 Nc5 Nb6 Nd7 Nba4 Qb6 Qb7 Qa6 Qb3 Rh4 Qc4 Qb6 Nf6 Qa6 Rg8 h8N Rg7 h7 Ng8 Ne5 Kc5 d6 Kd5 d7 Bd6 d8Q Rb7 Nd3 Rb1 Nc5 Rf1 Nd7 Ba3 Qab6 Bc1 R1h2 Bd2 Rh1 Be1 R4h2 Bb5 Qg6 Bc6 Nf7 Nh6 h8R Ng8 R8h4 Re7 Nh5 Ke4 Nhg3+ Kf3 Nh8 Ree4
1k2r1bB/3q1QQ1/b1PP1qRB/6Pn/6R1/1q1rq1R1/rbQ1r3/4Q1K1 w - - 0 1 legal: proof: e4 f5 exf5 b5 a4 c6 axb5 Na6 b6 Nb8 b7 Qc7 Bd3 Qa5 Bf1 Qd8 c4 d5 b4 Qb6 c5 Nh6 b5 Qc7 b6 Qd8 Bb5 cxb5 Na3 Ng8 g4 g5 f4 Qd7 h4 Nh6 h5 Nc6 f6 Qd8 f5 Ne5 Nh3 Ng6 hxg6 Ng8 Nc4 dxc4 Nf4 gxf4 g5 Be6 Rb1 Bd7 Ra1 Bc8 Kf2 Kd7 b8Q e5 d4 h5 f7 a5 d5 f3 d6 c3 f6 e4 g7 h4 b7 e3+ Kf1 b4 Ba3 b3 Rh3 c2 Qc1 a4 Qe1 c1Q Qd1 f2 Qa7 b2 Bb4 b1Q Qa5 e2+ Kg2 f1Q+ Kh2 e1R b8R a3 Qf3 a2 Bc3 Re2+ Qg2 Qe3 Be1 Qbb3 Qd2 Ra3 Rg3 h3 Qc3 Be7 f8B Ba6 f7 Nf6 g8Q Nh5 Bh6 Bf6 Qg7 Re8 f8Q+ Qde7 Qd2 Bb2 Qff7 Qf6 Rb7+ Kc8 c6 Qd7 Bf2 Qa7 Rg1 a1R Bd4 R1a2 Qe1 Qab6 Kh1 h2 Qe4 Qe3 Qc2 Rd3 Rg4 Qb4 R1g3 Qb3 Ra7 Kb8 Rc7 Qc8 Re7 Qd7 Re6 Qff4 Rg6 Qfe5 Qef2 Qf6 Kg2 h1B+ Kg1 Qc1+ Qe1 Bd5 Qe7 Bg8 Qgf7 Qfe6 Bh8 Qf6 Qg7 Qd2 Qef7 Qe3+
5b1B/RB2B2B/1n1p1qPn/6b1/K2bP3/2k2b1r/P1r1n2Q/2Rq1Q1Q w - - 0 1 legal: proof: d4 c5 dxc5 a5 c4 e5 f4 a4 fxe5 a3 Bd2 axb2 Na3 Qg5 Nb1 Qe7 Na3 Qd8 g4 h5 Rc1 Na6 Nc2 Nb8 Na1 bxa1B Rc2 Ra6 Rc3 Ra8 g5 Nc6 Nh3 Be7 Nf2 Nb8 Ng4 Bf8 Qc2 hxg4 Qg6 Ra7 Qxg7 Ra8 Kd1 Ke7 Kc2 Ke6 Kb3 f5 h4 b5 h5 f4 c6 d6 c5 Kd5 h6 Kd4 e6+ Qf6 e7 g3 e8Q f3 h7 b4 c7 g2 c6 g1B Qh5 f2 Qh2 Bb2 Qgh6 Nd7 Rc1 Bb7 c8B Nb6 c7 Bf3 Bb7 Rc8 e4 Ba3 Bh3 f1N Bf5 Ng3 Be1 Ne2 Bh4 Bf2 Qh5 Nh6 Rhg1 Nc4 Ka4 b3 Qf7 b2 Rg3 Rb8 c8Q b1Q Bg6 Bg1 Qch3 Rc8 Q3g2 Be3 Qgh1 Bb2 Rg4 Qa1 Rf4 Qb1 Rf5 Kd3 Ra5 Bbd4 Ra7 Qa1 Qd7 Bd2 Qdh3 Rc5 Q3f1 Nb6+ Kb3 Rc2 Bf5 Rg8 h8B Qb1+ Ka3 Kc3 Bh7 Rg7 g6 Rc7 Re1 Qd1 Bg5 Rc5 Bh4 Rh5 Bg5 Nd5 Ka4 Rh3 Bh4 Qe5 Be7 Bg5 Qf4 Qf6 Qfh2 Qd2 Rb1 Qd1 Rc1 Nb6+
1kb5/pP6/1Q1P2nq/1nb2B1Q/4qBQ1/3qr2n/bB1nR1KP/1RQ5 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 b5 cxd5 g5 axb5 h6 b6 h5 b7 Nc6 b8Q Nd4 Qxa8 Nc6 Nc3 Nb8 Nh3 Bg7 Ne4 Bf8 Nef2 f3 Nf4 gxf4 g5 Ba3 Ng4 hxg4 Qb3 Bc5 Qd1 Bf8 Kf2 Kd7 b4 f5 d4 c5 e4 Kc7 g6 c4 b5 g3+ Kg1 g2 e5 c3 e6 c2 g7 Qe7 Be3 c1Q Bd3 Rh3 Ra3 Na6 Qc6+ Kb8 b6 Nc7 d6 Nb5 Kf2 g1N b7 Qh4+ Kf1 f2 d7 Ne7 d8B Ng6 g8Q Bc5 Kg2 f1N d5 Nd2 e7 Qc2 e8Q Qh6 Bd4 Re3 d6 Nh3 Qb6 Qc4 Qc1 f3+ Kg3 f2+ Kg2 f4 Ra2 Qa4 Bg5 Qb4 Bb2 f3+ Kg3 f1B Bf5 Be2 Bf4 f2+ Kg2 Bc4 Re1 Bf7 Re2 Qd4 Ra1 Ba2 Rb1 Qd3 Qed8 Qc4 Qg5 Qd4 Qd5 Qd3 Qf3 Qe4 Qg4 f1Q+ Kg3 Qd1 Kg2 Qdc2 Qh5 Qed3 Qg3 Qa4 Qgg4 Qae4+
4R2Q/2R5/1KN1bb2/r1qkN3/2rqrbnn/3Q2PQ/1PPR2b1/Qq4n1 w - - 0 1 illegal: No possible last move, all moves rejected
3n2bb/q1q2nb1/nrB1NB1n/4PQ1Q/Bkb3rP/nN2NP2/5B2/4K3 w - - 0 1 legal: proof: g4 b5 b4 e5 a4 f5 axb5 h5 gxh5 c5 h4 e4 d4 cxd4 Rh3 Bd6 Rd3 Be7 Ra6 Bf8 Rg6 Rh7 Rg4 exd3 e4 Rh6 e5 Rh8 Re4 fxe4 c4 g5 b6 d5 b7 Kd7 c5 Kc6 f3 Kb5 c6 a5 h6 a4 c7 e3 h7 a3 Ne2 a2 Bb2 a1N Qb3 g4 Nc1 e2 Qa2 d2+ Kf2 d1B Nb3 g3+ Ke1 d3 Qa3 g2 Kd2 g1B Bh3 e1N Bd7+ Nc6 b8B d4 Bh3 Be6 c8B Ra6 Qa2 Qc7 Bc1 Nac2 Nc5 Nd8 Ba3 Nh6 Nb7 Rg8 h8N Rb6 Ng6 Be2 Na5 Bg7 Nf8 Nhf7 Nc4 Bh8 Ba7 Rg4 Bb7 Bd5 Bc1 Na3 Ne3 Nec2 Ne6 Ka4 b5 Nb4 Bf1 Na6 Ke1 Kb4 Bc6 Bh2 Nd2 Bf4 Qc2 Bh6 Nb3 d2+ Kf2 d1N+ Ke1 Bf8 Qf5 Bec4 Be2 Nf2 Bd1 d3 Bc2 Rb8 b6 Bfg7 b7 Re4 Kf1 Ng4 Ke1 Ngh6 Bd1 Rg4 Bb6 Ra8 b8Q Ra7 Qh5 Rb7 Bd4 Rb6 Qc8 Be4 Bc2 Bh7 Bd1 Bg8 Bc5+ Kc3 Be7 Qa7 Bf6 Kb4 Bb2 Qc7 Bd4 Qa7 Na5 Qc7 Bda4 Qa7 Nb3 d2+ Kf2 d1Q Qd7 Qd3 Ke1 Nd6 Qdf7 Qc2 Qfg6 Nd6f7 Qgf5 Nd6 Ng2 Nd6f7 Bf2 Qd3 Ne3 Qd6 Bab5 Qde7 Ba4 Qec7
k1q1r1q1/1rrnN3/NbrP4/nnb5/BP2KN1B/B2b3Q/5P1n/1B5Q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 h5 Nb8 b4 h6 g4 Kf7 Rh4 Ke8 Ra3 Bg7 Rg3 gxh4 g5 Bf8 g6 Bd7 Rg4 Bc8 Rg5 hxg5 Ke2 Kd7 Ke3 a5 d4 c5 g7 Kc7 b6+ Kb7 d6 e5 d5 c4 h6 c3 h7 h3 d7 c2 Bd2 c1R Bd3 g4 Bc2 a4 Qe2 g3 Bb3 g2 Na3 h2 Qf3 h1R Qf5 Rc7 Qh3 Nc6 Nb1 a3 Qg4 a2 Nf3 a1B Nh2 g1Q Nf1 Ra6 Bc4 Ka8 Qe2 Nf6 g8B Na5 Be6 Qg8 Bc1 Rg1 Qb2 Rg7 Bd3 Bc5+ Qd4 Bb7 d6 Qc8 d8B Nd7 Bb3 Bd5 Bb2 Bc4 Ba3 Bb2 Bdc2 Bd3 Nc3 Ba1 Ng3 Rf7 Nce2 Rb7 Kd2 e3+ Kd1 e4 Ba4 Rg7 Nf4 e2+ Kd2 e1N Ke3 Nf3 Bh4 Nh2 Nf5 Bc3 Bb1 Re7 Nh5 Rg7 Kf4 e3 Qe4 e2 Ne7 e1N Qc6 Nc2 Qh1 Nd4 Ke3 Be2 Ke4 Nb5 Nf4 Bf1 Nf5 Rc7 Ne7 B3d4 b7+ Kb8 Ng2 Rac6 Nf4 Ka7 b8N Ka8 Na6 Bb6 Qg2 Bdc5 Qg3 Qb3 Qc3 Re8 h8Q Qg8 Qh3 Rf7 Qa1 Bd3+ Kd5 Nf8 Bbc2 Bf1 Neg6 Bd3 Qh1 Rb7 Bb1 Ne6 Ke5 Rfc7 Ne7 Nf8 Bg3 Bf1 Ke4 Nd7 Bh4 Bd3+
N1k2q2/B3r1q1/1q1nn1P1/Qn1BnQ2/K1N1b2n/rQ1P1P2/4p2b/N3Q3 w - - 0 1 illegal: No possible last move, all moves rejected
8/2Q2pk1/3rnNrb/1K1Q1Q1b/PN1q3R/b2R1n2/Q1qR1P1P/r3rr2 w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 d6 b4 b5 cxb5 axb4 d4 Bf5 d5 Be6 Bg2 Bc8 Be3 e6 Bc5 dxc5 d6 Bd7 Be4 Bc8 Bd5 exd5 Kd2 g5 Kd3 b3 e4 c4+ Kc3 c5 e5 b2 b6 d4+ Kc2 c3 Kb3 d3 Kc4 d2 e6 g4 b7 c2 e7 c1Q+ Kb5 c4 h6 g3 a3 g2 h7 c3 Qg4 d1R Nd2 b1R+ Nb3 c2 Ra2 Na6 b8Q Nf6 Nf3 g1R Qc7 Rg8 h8R Ne4 Nd4 Ng5 Qf5 Rg6 Nc6 Nc5 Rh4 Rge1 Nb4 Nce6 Nc5 Bh6 Ne4 Nf3 a4 Ra6 Ra3 Ra1 Rd3 Qb2 Rg1 c1B Rd2 Qc2 Rg3 Ba3 Rgh3 Nfg5 Rhd3 Nf3 Qcc5 Rf1 Qcd5 Rde1 Qa2 Nc5 Qfd5 Bg4 Qf5 Bh5 Qfd5 Kd7 e8Q+ Kc8 Qg8 Kd7 Qh7 Ke8 d7+ Kf8 Nf6 Ne6 Qe4 Rd6 Qed5 Qe7 d8Q+ Qe8+ Qd7 Qd8 Qc7 Qd7+ Qcc6 Qa7 Qc3 Qd4 Qc7 Rg8 Qhe4 Rg6 Qef5 Kg7
B1bbn1k1/2P1P1b1/1B1B4/3pqBNn/1nb1q3/r2Pb3/3Q1Q2/1NN1r2K w - - 0 1 illegal: No possible last move
1Qb3qq/p6r/1Q1Q1n1k/2P1nr2/2n3QB/1BK4B/r1P1N1Pb/2q1Nr2 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 axb5 g5 d4 e5 h4 gxh4 Ra6 Ke7 Rd6 Ke8 Rh3 Qe7 Re3 Qd8 dxc5 Kf7 Rd4 exd4 e5 Ke8 Re4 fxe4 Kd2 Kf7 f4 Kg6 e6 d5 b6 h5 b7 d3 f5+ Kh6 b5 d4 f6 e3+ Ke1 h3 e7 h4 e8B d2+ Ke2 d3+ Kf3 h2 Ke4 h1Q b6 h3 f7 e2 Ke5 e1R+ Be2 h2 Ba4 Rh7 Nf3 Nf6 Nc3 Nbd7+ Kd4 Ne5+ Bd7 Rf1 b8Q Bd6 b7 Qg8 Ne1 Rf5 Qc7 Rb8 Qb6 Qf1 Bg4 h1Q Ba4 Bc7 Qe2 Qh5 Bb2 d1N Bh3 d2 Qg4 Ne3 Ne2 d1R+ Kc3 N3c4 Bb3 Ra1 Bc1+ Qf4 Be3 Ra2 Bf2 Qc1 Bh4 Ra8 b8Q Bd6 Q8b7 Rb8 Qd5 Rb7 f8Q+ Rbg7 Qe7 Rf7 Qdb7 Rf8 Qec7 Qe8 Qbb8 Qh8 Ba4 Qf7 Qd8 Qfg8 Bb3 Rf1 Ng3 Ne8 Nd3 R8f5 Qf6+ Ng6 Ne2 Bh2 Qfe5 Nf6 Qed6 Nge5 Ne1 Re7 Nd3 Rb7 Ne1 Rh7
Kr4r1/Q2B4/3r1BR1/qPq2nRn/PpQ3r1/1PQb4/6k1/R2qR1qr w - - 0 1 illegal: No possible last move, all moves rejected
3Rqr1n/PQ4R1/2bqqRr1/P1rkPQNN/pb1N2n1/2bp4/6RK/8 w - - 0 1 illegal: No proof kernel
8/1N2Q3/r1P3P1/N1n1r3/PbB2n1p/1Nb1p1nb/2nN1Q1B/1q1K1Qrk w - - 0 1 legal: proof: d4 f5 e4 g5 exf5 a5 h4 c5 dxc5 Nc6 b4 axb4 a3 Nb8 h5 Bh6 Qf3 Bg7 Qd1 Bf8 g4 h6 a4 Bg7 Rh4 Bf8 Ra3 Rh7 Rg3 gxh4 g5 Rh8 g6 Rh7 Rg2 Rh8 Rg5 hxg5 c4 b5 f4 d5 h6 Kd7 f6 Kc6 h7 e5 f5 b3 f7 e4 f6 g4 Na3 b4 Kd2 g3 Nf3 b2 Qe2 b1N+ Kc2 d4 Qd2 b3+ Kd1 b2 Qe1 d3 Be2 d2 Nh2 g2 Qh1 g1B Nb5 Nd7 Nc3 Na3 Nb5 b1R Nf3 Bd4 Qf1 Ne7 Nd6 Rg8 h8Q Nc2 Nb7 Nd5 Qg7 Bc3 Qh7 Be7 f8Q Ra6 f7 Qb6 Bd3 Nf4 Na5+ Kc7 c6 Kd6 c7 e3 c5+ Kd5 c6 Beb4 Bc4+ Ke4 Qhg7 Rh8 Qf6 Nc5 Q8e7+ Be6 c8N Rh5 f8N Re5 Qf2 Bh3 Ne6 Ra1 Ned4 Qb8 Ndb3 Qb7 Nh2 Qb8 Nf1 Qb5 Qh2 Kf3 Nd6 Qb6 Qh1+ Kf2 Qf3+ Kg1 Qf2+ Kh1 Ndb7 Nfd3 Ke2 d1N Ba3 Rc1 Nfd2 Qb5 Q2f5 N1f2 Bb2 Nfe4 Qf2 Rg1 Ba1 Nde1 Kd1 Ng2+ Qf1 Ng3 Qf2 Nf4 Bb2 Bd4 Ba3 Ba1 Bb2 Nce6 Bd4 Bac3 Ba7 Qb6 Bb8 Nc5 Qe6 Nge2 Nd6 Nd5 Qe7 Ba3 Qff6 Rg5 Nc1 Qb1 Ndb7 Bab4 Bh2 Ng3 Qff8 Re5 Qf2 Qb2 Ncb3 Nf4 Qc7 Qa2 Qe7 Qb1+
RQn1b2r/1Nr4n/4qqNN/nP2p2P/4Q1RR/3R2b1/1kP1p3/b3nK2 w - - 0 1 illegal: No possible last move, all moves rejected
4b2q/1n2K2k/1RQBR3/p2b2r1/br1q1b1p/2Q1n2q/R1P1RPQP/1B6 w - - 0 1 legal: proof: b4 b5 e4 c5 g4 d5 a4 f5 e5 e6 axb5 cxb4 d4 Qd6 Nc3 Qd7 gxf5 Qe7 Ne4 Qd8 Ne2 Bd7 Nf4 dxe4 d5 Bc8 d6 Qg5 Nd5 exd5 Bd3 Qh4 Bf1 Qd8 Kd2 Kf7 Ke3 a5 Kf4 h5 f6 Kg6 b6 e3 e6 b3 Ke5 h4 b7 d4 f7 b2 d7 b1B e7 e2 Kd6 e1Q Bc4 d3 Ba6 d2 Rg1+ Kh7 Rg4 g5 Qf3 d1B Qg3 Qe6+ Kc5 Ba2 Qe5 Nf6 Bf1 Nd5 Bf4 Ne3 Be2 Bd5 Bf1 Bh6 f8Q Nc6 e8R Rb8 Qfd6 Rg8 Bc4 Be2 Bb3 Bb5 Qc3 Ba4 Ra2 Qe4 Qdf6 Qd4+ Kd6 Rg6 Re5 Qh8 d8Q Bd7 Re6 Be8 Rg1 g4 Re1 g3 Re2 g2 Qd7+ Ne7 Qdc6 g1Q Qg5 Qf1 Qg2 Rg4 Be5 Bf4 Bc4 Rg5 Bb3 Ra8 b8R Ra7 Rb6 Rb7 Qh1 Qh3 Qg2 Ng8 Bc4 Nf6 Bb3 Nd7 Ke7 Rb8 Bd6 Rb7 Ra1 Rb8 Ba2 Nc5 Bb1 Nb7 Ra2 Rc8 Qd7 Rc4 Qc6 Rb4
1K4k1/3q2Bp/1qR4P/2n4P/QQ1R1n1n/1rbr3p/2BR1b1P/rRQ1r3 w - - 0 1 illegal: Other
4N1R1/rQPq1R2/N3PprK/1qpb3N/5Nqb/4Rb1P/Q4n2/4bnk1 w - - 0 1 legal: proof: f4 b5 g4 c5 a4 e5 axb5 exf4 b6 h5 gxh5 Bb7 Bh3 Ba6 Bf1 Bc8 b4 Qf6 c4 Qc6 b5 Na6 Ba3 Nh6 Bb4 cxb4 c5 Qd5 c6 Ng8 c7 Nb8 Bg2 Qd6 Bc6 dxc6 Ra4 Qd5 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 d4 Kd5 h6 a5 h3 g5 e3 b3 b7 a4 h7 a3 b6 g4+ Kg2 Ke4 d5 b2 d6 a2 d7 c5 Qf1 g3 Qc1 f3+ Kf1 g2+ Kf2 Nh6 Kg3 f2 Na3 f1Q Qd2 b1B Nb5 Be7 Ne2 Nf5+ Kg4 g1Q+ Kh5 Kf3 e4 Kg2 e5 Be4 e6 Ne3 Nd6 Ra7 Re1 a1B Kh6 Bh4 Qa2 Na6 b8N Bcb7 Ne8 Rg8 h8N Bc3 Ng6 Nb4 Na6 Nd3 Ng3+ Nf2 Nh5 Bbd5 b7 Qb5 b8Q Bf3 Qb7 Nf1 Re3 Qc8 d8R f6 Rd7 Be1 Re7 Qcd7 Rf7 Nd2 Ngf4+ Kf1 Rh2 Qg4 Qa3 Kg1 Qa2 Nd3 Rhe2 Nf1 Rc2 Nf2 Rc4 Qg3 Rce4 Rg5 Re5 Rg4 Rg5 Qg2 Rgg7 Rg5 Rg6 Qg4 Rg8 Rg6+
B2rr2N/1N2rB2/q1pB1k2/2P2b1Q/1B1Pp3/2qNPn2/KQ2nq1n/7q w - - 1 2 legal: proof: a4 d5 e3 b5 axb5 d4 Ke2 g6 Kf3 Bh6 Kg3 dxe3 Kf3 e2 Kg3 Be3 fxe3 Na6 Kf2 Nb8 h4 h6 b4 g5 g4 Qd7 Ra6 Qd3 Rf6 Qd8 Rf4 gxf4 g5 h5 Rh2 Rh7 Rg2 Rh8 Rg4 hxg4 Ke1 f5 c4 Kf7 d4 e5 Kd2 e1Q+ Kc2 a5 Kb3 f3 h5 f2 b6 c6 b7 g3 g6+ Kf6 h6 g2 g7 f4 b5 e4 b6 f3 h7 a4+ Ka3 Qf8+ c5 Nd7 b8B Ne5 b7 Bf5 Nd2 Nh6 g8B Nhg4 Bd6 Rd8 b8Q Nh2 Ba6 f1Q Nh3 g1N Qb2 f2 Qh5 Ne2 Ka2 a3 Bb7 Nef3 Nc4 Qc3 Na5 Qh1 Bf7 f1R Ba8 Rg1 Nb7 Rg7 Nf4 Rhg8 Be6 Re7 h8N Qf7 Nd3 Rge8 Ka1 a2 Bd5 Qg2 Bd2 Qf2 Bb3 Qfc4 Be1 Qa6 Bf7 Qb3 Bb4 Qd1+ Qc1 Qh1 Kb2 a1Q+ Kb3 Qb6 Qb2 Qac1 Ka3 Qc3+ Ka2 Qa6+
nR1q1k2/pKPn4/qQ1rn3/Q3R3/P1rNNr1p/4q3/1P1q1Qb1/4R2R w - - 0 1 legal: proof: d4 b5 e4 f5 exf5 c5 c3 g6 Qa4 c4 Qb3 Bh6 Qd1 Bf4 Be2 Bd6 Bf1 Bc5 dxc5 b4 Qd3 bxc3 Qf3 Qb6 Qd1 Qd8 g4 g5 h4 Kf8 h5 Ke8 Bf4 Nh6 Bg3 Ng8 Bh4 gxh4 g5 Na6 g6 Qc7 g7 Nf6 Bg2 Nb8 Bd5 Ng8 Bf7+ Kd8 Bg6 hxg6 Qd5 Ke8 Qd1 Qd8 Ke2 d5 Kf3 e5 a4 g5 c6 e4+ Ke3 g4 Kd4 c2 Kc5 c1R f4 c3 c7 g3 h6 g2 h7 d4 f6 d3 f5 d2 Rh2 e3 Na3 e2 Nb1 e1Q Qf3 d1Q Rh3 c2 Qe3+ Ne7 Ne2 g1N Rh1 Qd1d2 Nbc3 Qf1 Ne4 Nh3 Nd4 Rf8 g8Q Nf4 h8R Ned5 Qg5 Bb7 Rh5 Nd7+ Kd6 Rc8 Qb3 Qfe2 Qb6 Qb5 Rb1 Ne6 Re1 Rg8 f7+ Kf8 Rh1 Rf1 Rd1 c1Q Re1 Qg2 Qd2 Rg4 Qda5 Qe3 Rg5 Qgd2 Rh5 Kg7 f8R Rff4 Rg8+ Kf7 f6 Rb8 Re5 Ba8 Qba6 N5b6 Rh8 Bd5 Re8 Na8 Q6b6 Bc4 Rh8 Bf1 Re8 Bg2 Rg8 Qbb3 Kc6 Rc8 Kb7 Qb5 Rgg5 Kf8 f7 Qe7 Rh5 Rd8 Rh7 Nf6 Rh6 Rd6 Rhh5 Nd7 Rh8+ Kg7 Rb8 Qd8 f8Q+ Kg6 Qf5+ Kg7 Qh7+ Kf8 Qh5 Rg5 Qe2 Rgg4 Qf2 Qf3 Nc6 Qfe3 Nf6 Rc4 Ne4+ Rf4 Nd4 Qa6+
N1Q2K2/Q1bN4/rb3P2/Q3r1nn/p1Pkp3/3qbpr1/4RP2/2NqR2N w - - 0 1 legal: proof: b4 c5 g4 b5 a4 h5 e4 hxg4 c3 f5 Bd3 f4 Bc2 d5 Ba3 Bf5 exf5 d4 axb5 d3 b6 dxc2 b5 Qd3 Bb4 cxb4 Ra5 Qd6 Ra1 Qd8 Ke2 Kf7 h4 Kf6 d4 c1B Kd3 e5 Kc4 g5 d5 a5 h5 e4 b7 Ke5 h6 g3 f6 b3 h7 g4 b6 b2 d6 g2 Kc5 a4 c4 g3 Nc3 b1R Nge2 g1B Qd2 g2 Na2 f3 Ng3 Ne7 d7 Nbc6 b8N Ra6 b7 Rg8 h8Q Bh2 Re1 g1Q Qa5 Nd4 Re2 Qd1 Nh1 Be3 Nc1 Rg3 Qg7 Nd5+ Qe7+ Re6 Na6 Nf4 b8N Rb6 Nc7 Nh5 Na8 Ra6 Rb1 Qe8 d8Q Qd7 Ra1 Bfh6 Qf7 Re7 Qc8 Ne6+ Kb4+ Q7d5 Nd7+ Kd4 Rb1 Ng5 Qh7 Qg8 Kb5 Qd8 Qg7 Ra7 Kc6 Re5 Kd6 Qd3 Rbb2 Qd1 Re1 Qd3 Rbe2 Qd1 Qh7 Bf8+ Kc6 Bc5 Qe7 Bb6 Kd6 Ra6 Qf7 Rc5 Qe7 Nh3 Ke6 Re5+ Kf7 Qd3 Qe8 Ng5+ Kf8 Qc7 Qf7 Qd6+ Qe7 Qd1 Qb7 Qa3 Qa7 Qc3 Qe8 Qcd3 Qc8 Rg2 Qac7 Re7 Q7b8 Bhc7 Qbb7 Re5 Qa7 Rg3
1R1Nr1Q1/1RPrp1p1/KQ1R3q/n3Qpk1/P1nPq3/2Q3q1/N2b3b/1b6 w - - 0 1 illegal: No proof kernel forced: wxDB
1brRr3/1P3k2/1b2qB2/1Q2p2b/5n1P/B3BQ1p/2p1KQqP/r1R1Bn2 w - - 0 1 illegal: No proof kernel
1rQb3r/K3R2q/1N2r1Q1/p2rp3/PP2R2P/1p4N1/n1r4N/nQb1N1k1 w - - 0 1 legal: proof: f4 b5 g4 e5 f5 h5 gxh5 d5 e4 Be6 fxe6 dxe4 a4 b4 c3 c6 b3 c5 Ba3 bxa3 b4 c4 Bd3 Ne7 Bc2 Ng8 Bb3 cxb3 Ke2 Ke7 Ke3 Kd6 d4 Kd5 h4 a5 h6 f5 h7 g5 e7 g4 e8N g3 Nd6 g2 Nd2 a2 Rh3 f4+ Ke2 f3+ Ke3 f2 Nf5 f1R Rg3 Qc7 Ngf3 g1R Nh2 Rf2 Ndf3 Nf6 Qb1 Be7 Rg7 Rg6 Ng3 Rc2 Ne1 Bd8 Re7 Kc4 d5 Nc6 d6 Rb8 d7 Nd4 Qd1 Qb7 Qh5 Rh6 Qg6 Kd5 Rb1 a1R Rb2 Rd1 c4+ Kd6 c5+ Kd5 c6 Kc4 c7 Qa7 Ne2 Nd5+ Kf2 Rdd2 c8N Nc3 Ke3 Na2 Ng3 Rd1 Nb6+ Kc3 Qh5 Re6 Qh6 Rcc1 Qg6 Nc2+ Ke2 Na1 Ke3 Rd5 Re2 Bc7 d8Q Rc2 Qf8 Bd8 Qf1 Qc7 Nef3 Qa7 Qb1 Qb7 Ne1 Qc7 Kf2 e3+ Kf3 Qb7 Ke4 Qd7 Rf2 e2 Rf4 Kd2 Rg4 Rg8 h8Q Qb7 Qhf6 Rh8 Qf2 Qd7 Qc5 Qa7 Qc8 Qd7 Kf5 Ke3 Rc4 Kf2 Ke4 Kg1 Rd4 Qb7 Kd3 Nc3 Kc4 Qd7 Re4 Qb7 Re8 Qh7 Re7 Rd1 Kc5 Na2+ Kb5 Rd4 Ka6 Rd5 Nd3+ e1B Ka7 Rf8 Qb2 Bd2 Qb1+ Bc1 Ne1 Rh8
4QQ2/1n2P1BP/1b4P1/qb1R1K2/r2pq1pp/q1R3r1/q2B1nR1/kB5B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 fxe5 Bg7 Na3 Bh6 Nb1 Bf8 g4 h6 Nf3 Bb7 h5 Ba6 Nh4 Bc8 Nd2 Nc6 Ndf3 gxh4 g5 Nb8 g6 Be7 Ng5 hxg5 Ra6 Bd6 Ra1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Kd5 b4 Kc4 e4+ Kc3 h6 a5 h7 d5 e6 d3 b6 g4+ Kf4 a4 e7 d2 e8B a3 b5 a2 e5 d4 b7 Na6 b8B Nf6 b6 Nc5 b7 Ra4 e6 Qa5 Qe1 Nfe4 Rh2 Bd7 Be5 Bb5 b8Q Nf2 Bg7 Nb7 Rg2 Bc5 Bd3 Rf8 Bc6 Bb6 e7 Rf7 Qf1 d1Q Qe8 Qe1 Bd2+ Kb2 c4 Qe4+ Kg5 f4 c5 f3 Bb1 Rf4 Bd5 Rf8 c6 Rf6 c7 Rc6 c8R Rc3 Bc2 Re3 Re1 a1Q Rc3 Qa3 Bb1 Ka1 Kf6 Nh1 Rec1 f2 Rc5 Qa2 R1c3 Rg3 Bc6 Qa3 Rd5 Qa2 Qg1 f1Q+ Qf2 Qfe2 Qf3 Q4e3 Kf5 Nf2 Qf4 Qa3 Qfb8 Qc4 Qf8 Qce2 Qbe8 Qe4+ Kf6 Qc2 Rh5 Nd3 Rf2 Rb4 Bh1 Qe4 Rg2 Nf2 Rd5 Ra4 Kg5 Qca2 Kf6 Qe3 Kf5 Qe4+
1kN3Q1/2r3p1/1NQppnPn/bnN1RN2/q4n1R/1Qn4K/3r1P1P/6r1 w - - 0 1 legal: proof: a4 b5 axb5 c5 g4 h6 d4 cxd4 g5 Ba6 g6 Bb7 Bg5 Bc8 e4 hxg5 e5 d6 e6 Qc7 Na3 Qd7 Nb1 Qd8 Ra2 f5 Bg2 Bd7 Be4 fxe4 Ra5 Qc8 Ra1 Kd8 Nh3 Kc7 Ng1 Qd8 Kf1 Kb6 exd7 Kc5 Ke2 Kd5 Ke1 Ke6 Kf1 a5 Kg2 d3 b4 d2 c4 e3 c5 g4 c6 e2 c7 e1N+ Kg3 a4 c8Q a3 b6 a2 b5 Qe8 d8Q+ Nd7 b7 Nh6 b8N Ng2 b6 Nf4 Qc5 Nf6 b7 Qa4 Nc3 Ra5 Qc2 d1N Nb5 Nc3 Nd7 Ra6 Rc1 a1N b8N Nb3 Ne2 Nd4 Na7 Ndb5 Nb6 Rg8 Kh4 g3 Rhe1 g2 Nac8 g1R Qc6 Ra7 N8d7 Rc7 Qd3 Na2 Rc3 Ra7 Qb1 Qc2 Rh3 Nac3 Na8 Ra2 Na7 Qa4 Ng3+ Re2 Nf5 Rh8 Qcc7 Kd5 Qb2 e6 Nc5 Rd2 Qdb8 Be7 Qb3+ Qc4 Qe8 Bd8 Qcf7 Rf8 Nc8 Ba5 Qg8 Rf7 Re2 Rd7 Nab6+ Kc6 Re1 Kc7 Re5 Re7 Qd7+ Kb8 Qc6 Rf1 Kg3 Rc7 Rh5 Qa4 Rh4 N4h5+ Kg2 Rg1+ Kh3 Nf4+
k1nNBQ2/2pQ1pN1/2rBr1P1/r1qK2n1/2p5/r1r1B1Pn/2P5/1NN2b2 w - - 0 1 illegal: No possible last move, all moves rejected
1qB2b1R/P1p1Pknb/1p1Qn2K/2R1Q3/1P1Qrb1p/2n2b2/2Qn1BB1/8 w - - 0 1 legal: proof: c4 a5 g4 f5 c5 e5 Na3 a4 Nc2 d6 cxd6 fxg4 b4 Be6 Nd4 Bc8 Nb3 axb3 d4 g5 h4 g3 d5 g4 Nf3 Nc6 Qd3 Nb8 Nd4 exd4 Qd1 Nh6 Be3 Rg8 Bf4 Rg5 hxg5 Ng8 Bc1 Qf6 Bg2 Nc6 Kf1 Nge7 Ba3 Kf7 Rh5 Bd7 Rb1 Bh6 Rc1 Rh8 Rh2 Bf8 Ke1 Ng8 Bf1 Qd8 Ra1 Bc8 Rh1 Ke8 Bc1 Nb8 Kd2 h5 e4 b6 f4 d3 Ke3 b2 a4 b1N g6 d2 g7 g2 f5 g1B+ Kf4 g3 a5 g2 f6 Bf5 Kg5 Qe7 d7+ Kf7 d8Q Na6 d6 Nc5 d7 Bh2 a6 g1N e5 Ne2 a7 Bc2 Bg2 Qd6 Ra5 Ke6 f7 Nh6 g8B Nf5 Qe8+ Be7+ Kg6 Qc6 d8Q Qa8 Qd4 Qb8 Qb5 Bd3 Qc2 d1B Be3 Nd2 Bf2 Nc3 Bh7 Bg4 f8Q Bf3 Qfd8 Bd6 Kg5 Bf8 Q8d6+ Kf7 Qe8+ Kg7 e6+ Be5 e7 Bde4 Qb5 Kf7 Rh3 Ng7 Bf5 Rh6 Bc8 Re6 Qe2 Bf5 Qee4 Bh2 Qef4 Re4 Qfe5 Nce6+ Kh6 B5g4 Kh7 Bg3 Rc5 Bf4 Rg3 Bh3 Rg6 h4 Rh6 Ke8 Kg6 Bhg4 Rh8 Bh5+ Kh7 Kf7 Qg5 Bg6+ Kh6 Bg3 Qgd5 Bh7 Q5e5 Bf4+
1r3Rb1/npQ5/Q2NN2R/r1N3PK/pp3pr1/4P1q1/P1Q2q2/1Qn1k2b w - - 0 1 legal: proof: d4 e5 dxe5 g5 e4 c5 g4 Bh6 b4 cxb4 Bf4 gxf4 g5 Bf8 e6 h5 Be2 Bc5 Bg4 Be3 fxe3 hxg4 Kf2 Ke7 h4 d5 c4 Kd6 h5 Kc5 h6 a5 h7 f5 e5 a4 e7 f3 Kg3 d4 Kh4 d3 e8Q g3 e6 f2 e7 f1Q Rh3 g2 Rh2 d2 Qe1 d1B Nh3 g1R Qg6 Bf3 e8N Ra5 Nf4 Rg4+ Kh5 Na6 Nd2 Ne7 Qb1 Bh1 Nd6 Be6 Qh6 Rf8 h8Q Nc6 Qhb2 Qb8 Q2c2 Bg8 Rh3 Qf2 N2e4+ Kb6 Rh4 Na7 Ne6 Nc5 Rh3 Nd3 c5+ Ka6 c6 Nc1 c7 Re8 c8Q Rd8 Nf7 Kb5 N4c5 Qbg3 Qc7 Rb8 Qbb3 Ne2 Rf1 Nc1 Qbb1 f4 Rd1 Qe2 Rd8 Qd2 Rf8 Qdf2 Qd1 Kc4 Nd6+ Kc3 Qdb3+ Kd2 Q3c2+ Ke1 Qhg6 Qgg1 Qgd3 Bc6 Qa6 Qfg3 Kg6 Qf1 Rh6 Bh1 Kh5 Qff2
K7/Np3p1p/RQb3Nk/PnP5/r2q4/rQp1bqR1/Q1P1Q1nN/4n3 w - - 0 1 legal: proof: h4 a5 b4 d5 f4 g5 hxg5 c5 e3 e5 Ba3 exf4 Bc4 dxc4 bxc5 Ne7 Bb4 axb4 Qh5 Ng8 Qg4 Qe7 Qd1 Qd8 Ke2 c3 g4 b3 a4 b2 d4 f3+ Kd3 f2 Kc4 f1N Kb5 Qd5 Kb6 Qf5 d5 Bg7 g6 Kf8 e4 Ra5 g5 Bd4 e5 Kg7 d6 Bd7 e6 Ng3 e7 Ra7 e8Q Qd3 Qde2 Nf1 Na3 b1Q+ Nb5 Na6 Q8e6 Bf6 Qb3 Qc1 Nf3 Qcd2 Rg1 Ne3 Nh2 Qd5 Rg3 Ra8 Na7 Bc6 d7 Qf3 d8Q Ng2 Qdd5 Ne7 Qa2 Rae8 Qdb3 Nb4 Kc7 Nc8 Kb8 Rhf8 Ka8 Rg8 a5 Bd4 Rf1 Be3 Rd1 Qd8 Rd6 Re4 Rf6 Nd3 Rd6 Ra4 Rf6 Kf8 g7+ Ke7 g6 Ra3 Rd6 Nde1 Rf6 Re8 g8N+ Kf8 Ne7 Kg7 Re6 Kh6 g7+ Qf6 g8Q Qd4 Ng6 Qf3 Rd6 Re4 Qd8 Rg4 Re6 Nd6 Qf6 Nb5 Rd6 Bd5 Ra6 Bc6 Qfe6 Qd6 Qf6 Rga4 Qd8 Qd7 Qb6 Qd4
6bb/rkB5/1P3pQ1/1nRK2rr/p4qP1/4bPpB/R2pQQ1B/3Q3r w - - 0 1 illegal: No possible last move
2q4r/1Q1Q3B/K1BppR1p/3R2B1/3PP2r/P3Qq2/k1n1pqb1/r2Qq3 w - - 0 1 legal: proof: b4 b5 c3 a5 Qb3 axb4 Qb2 b3 Qa3 b2 Qa4 b4 Qd1 b3 e4 f5 Na3 g6 Bb5 f4 Nb1 Bg7 Bf1 Bd4 Qh5 Bc5 Qd1 Bb4 cxb4 Kf7 Nh3 Kf8 Ng1 Ke8 Na3 g5 Ne2 Kf8 Nc4 Ra3 Ne3 fxe3 f4 Ra7 f5 Ra8 Nf4 Ke8 h4 gxf4 g4 Ra4 g5 Nc6 h5 Ne5 Rh4 Ra3 Rh1 Ng6 hxg6 Ra8 Ke2 b1R Kd3 c5 Kc4 f3 Kb5 c4 d4 f2 g7 e2 a3 c3 g6 c2 f6 d6 f7+ Kd7 f8Q b2 Bg2 f1Q Bf3 Nf6 g8Q Nd5 g7 Qf2 Rh5 Ne3 Qf4 Qf8 Qgf7 h6 g8B Ra5+ Kb6 Rd5 Ka7 Kc6 Bg4 Kb5 Bd7+ Kc4 b5 Kb3 Bc6 Bh3 b6 e6 b7 Bg2 Qd7 Qf6 Qg3 Q6f3 Ka6 Rg5 Bd2 Rg4 Bh7 Rh4 Rd5 Rc1 Rb1 Ka2 b8Q Rh5 Qh1 Rh4 Qbb7 Rg1 Re1 c1Q Rf1 Nc2 Bg5 b1Q Qf4 Qce1 Qc1 Qbb3 Qh3 Qf8 Qhe3 Qc8 Qcd2 Qg3 Rf6 Qgf2 Qd1 Rgh1 Qed2 Qbf3 Qe3 Qb4 Qdd3 Ra1 Qd1 Qbe1
b2rN3/5qR1/2R1Nb1K/n3rp2/k2pR2Q/1qr1PNQ1/2bPnPR1/2q1n3 w - - 0 1 illegal: No proof kernel
1r2Q1n1/p2p4/2NP2Q1/rr2R3/RP2qq2/Nr3Q1b/P2n2Q1/bNk2Knq w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 f4 bxc4 f6 Ba6 f5 Bc8 g4 h6 b3 Bb7 Bb2 Ba6 Be5 Bc8 Bf4 gxf4 g5 h5 Be2 Bh6 Bf3 Bf8 Bg4 hxg4 h4 Kf7 d4 e5 b4 c5 h5 f3 d5 e4 d6 f2+ Kf1 g3 h6 c3 h7 c2 Rh5 c1R Qe1 c4 Na3 g2+ Ke2 f1Q+ Ke3 c3 Qg3 c2 Rh3 Ba6 Nf3 g1N Rh6 Nc6 Kd2 e3+ Kc3 e2 Kd2 e1R Rh3 Ne5 Qg2 Re3 Rh5 Bg7 g6+ Kf8 f7 Rb3 Rb1 Rb8 Rg5 Rb5 Rb2 Re3 Rb3 Qa8 Rd3 Bf6 Rd5 Kg7 f8N Kh6 g7 Qc6 Ne6 Rb3 Nd8 Ra5 Rc5 Qe4 Nc6 Bc4 Rb5 Be6 Rb6 Rb5 Ra6 Re1 Ra4 Ree3 Nfd4 Qff4 Ne2 Nc4+ Ke1 Ba1 f6 Bh3 f7 Rg3 Rf5 Rg5 f8Q Kg6 Re5 Ra5 Qf3 c1Q+ Kf2 Rf5 Qe8+ Kg5 Nc3 Qd1 Ncb1 Qdc1 Re6 Rfb5 Qa8 Qfe5 Qg2+ Kf4 Qg6 Q5f5 Re5 Qh1 Qb7 Qfe4 Qg2 Qd2+ Kf1 Ke3 Qa8 Nh6 Qb7 Rb8 h8Q Ng8 Qh5 Qd4 Qc8 Qd2 Qce8 Kd3 Qf3+ Qde3 Nd2 Kc3 Qg6 Kb2 Ndb1+ Kc1 Qe8 Nf6 g8Q Q3f4 Qgf7 Ng8 Qg6 Nd2+
2bQ4/1Qqp1kn1/2BP3q/5q1p/6pP/3qnB2/PKbB1Q1R/rr2B1bR w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 e5 b4 axb4 d5 c5 Nd2 c4 Nb3 cxb3 Nf3 Ra4 Nd4 exd4 Rb1 Ra5 Ra1 Ra8 Kd2 g5 e4 b5 c4 b2 Kc2 b1B+ Kb2 g4 f4 d3 f6 b3 e5 d2 f5 b4 e6 Ne7 c5 Nbc6 Qf3 d1Q Bb5 Nd4 c6 Rb8 c7 Bc2 Bc6 Qd3 Bd2 Qe3 h3 Qh6 Rh2 Bg7 d6 Nd5 e7 Ne3 Rah1 Kf7 Be1 Ne6 h4 Rf8 Qg2 Bh8 Qf2 Ng7 e8Q+ Kg8 Qe5 Kf7 Qb5 Re8 Qb7 Rf8 Kc1 b2+ Kd2 b3 Kc3 b1Q Bf3 Qd1 Kb2 Qd3 Bc6 Qg5 Bf3 h5 Bc6 Kg8 Bf3 Qh6 f7+ Kh7 f6 Kg6 Bc6 Re8 f8B Kf7 Bf3 Re4 Be7 Rd4 Bf8 Qf5 Be7 Rd1 Bf8 Ra1 Be7 Kg6 f7 Qd3 f8Q Qf5 Kc3 b2 Bg5 b1Q Qg8 Qd1 Kb2 Qdd3 Bf4 Qe7 Qd8 Kf7 Be5 Qee6 B5c3 Qec4 Ba5 Ne6+ Bac3 Bd4 Bc6 Bb6 Bcd2 Ng7 Qa8 Ba6 c8B Qc5 Bf3 Qc7 Qe4 Ba7+ Bb7 Bb6 Bc6 Bc8 Qg1 Nf1 Qg2 Bg1+ Qb4 Rb6 Qf2 Ne3 Qb5 Rb8 Qb7 Rc1 Qb5 Qdd5 Kc3 Ra1 Qa6 Rbb1 Qb7 Rd1 Kb2 Qdd3 Qf1 Rdc1 Qf2 Rcb1#
1q4Q1/1BpB4/rr1QRb2/Q1RnB3/bpP3nr/pP2bKQ1/2P5/rkq5 w - - 0 1 illegal: No proof kernel
K1Q2q2/1p2N2Q/k5r1/qNp2nn1/pR3P1R/QqP1n3/P2q2bb/RQ2r3 w - - 0 1 illegal: No proof kernel
2r2n2/3N3k/PNp1nrp1/B4qbq/2PB2rp/4rbP1/1B5N/KQn3QB w - - 0 1 illegal: No proof kernel
qb1B2q1/kBQb3p/pr2r1b1/6QP/QP1p3n/bN5Q/PN1K1n2/3nN3 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 e4 f5 b4 Kf7 e6+ Ke7 e5 Nf6 Nd2 Ng8 Rb1 Ke8 g4 g6 f4 Nf6 h4 Ng8 Rh3 Qe7 Re3 Qd8 Re4 fxe4 f5 g5 Rb3 Qe7 Rf3 Qd8 Rf4 gxf4 h5 d5 f6 c5 g5 c3 e7 Kd7 e8Q+ Kc7 f7 Kb7 g6 f3 e6 f2+ Ke2 d4 e7 a6 g7 c4 Nb1 c2 Bh3 f1B+ Kd2 c3+ Ke1 e3 Qd2 e2 Qc6+ Ka7 e8N Nd7 Qf4 Nh6 g8Q Bd6 f8Q Bb8 Na3 Nc5 Bd2 c1N Qh4 c2 Bg4 Nf5 Nb1 Ne4 Qgd5 Bd7 Qh3 Nf2 Qa4 Nh4 Qff7 Nd1 Bg5 Nd3+ Kd2 N3f2 Nd6 Re8 Nf3 Re6 Nc4 Qg8 Nb2 Bg2 Ne1 Be4 Qf4 Bg6 Bf3 Rb6 Qdf5 Re6 Bd8 c1B+ Kc2 Rb6 Bb7 Re6 Qc7 Rb6 Ned3 e1Q Nd2 Qh1 Ne1 Qg2 Nb3 Q2d5 Nc4 Ba3 Kd2 Bc8 Nb2 Bd7 Bf6 Qg2 Qg5 Qe4 Qd8 Bc7 Bc8 Re6 Be7 Rb8 Bf6 Qa8 Qe7 Rbb6 Bb7 Bb5 Qg7 Bb8 Qc7 Bc6 Bd8 Bd7
1r2n1b1/1QQ4P/1p1pQ2b/p2B1KQ1/3q3b/3Bn2k/PR1Pr1rq/2B2b1R w - - 0 1 legal: proof: f4 c5 g4 g5 b4 gxf4 bxc5 e5 g5 h6 Nc3 h5 Nd5 e4 Nf3 exf3 Ne3 Nh6 Ng4 hxg4 Bh3 Ng8 Bg2 Ne7 Bf1 Ng8 Kf2 Ke7 e4 Ke6 h4 f5 c4 a5 g6 g3+ Ke1 f2+ Ke2 g2 Kd3 g1B e5 b6 h5 f3 c6 f4 Ke4 Nf6+ Kd4 Kf5 g7 Kg4 g8B Nd5 Ke4 Na6 c5 Rb8 h6 Nac7 h7 Bh6 Be2 f1Q e6 Qg2 e7 Qh2 e8Q Kh3 Ke5 f2 Bd3 f1R Kf5 f3 Qe7 f2 Qde1 Ne8 c7 Ba6 c8Q Bc4 Bf7 Rg8 c6 Rg2 c7 d6 Q1e4 Re1 Rb1 f1B Rb2 Ree2 Qb7 Bf2 c8Q Bh4 Qg5 Qd7+ Be6 Qg7 Qcc7 Qd4 Bg8 Nb4 Qe5 Nc2 Qee7 Bb5 Bb3 Bc4 Qee4 Bf7 Bd5 Bg8 Qe6 Ne3+
R7/B1n1Q2r/1qbpR2B/1n4pQ/k2P4/b1pr1QqK/Q1P2pP1/1B3r1n w - - 1 3 legal: proof: f4 g5 a4 h5 Nf3 b5 Nc3 e5 axb5 exf4 Ne4 Qe7 Nf2 Qd8 Ng4 hxg4 Ra3 gxf3 Ra5 Nh6 Ra1 Ng8 Kf2 c5 d4 f5 e4 a5 b4 a4 h4 a3 e5 a2 b6 c4 h5 Bb7 e6 Nc6 b5 Na7 e7 Nf6 h6 Rh7 Qe2 Nd5 Qe6 Bc6 b7 Nc7 b6 Nab5 b8B Ra3 b7 Rd3 Ba3 c3 Ba7 Qb8 Re1 a1Q Qa2 Qb2 Re6 Qb4 Kg1 f2+ Kh2 f3 Kh3 f4 Be2 Qb2 Ra1 f1R B3c5 f2+ Bf3 Rdd1 Bd5 f3 Bb4 Rd3 Bc4 Qc8 b8Q Qb1 Qb7 Qb8 Qba6 Qb6 Qb7 Qe1 Bd6 Rg1 Be5 f1N Bg7 Ng3 Bd5 Rf1 Bc4 Rh8 h7 Nh1 Bh6 Qf2 Qa5 Qe1 Ba2 Qe3 Bb1 f2+ Kg4 Qe5 Qa2 Qg3+ Kf5 Rg8 h8Q Rg6 Qe5 Rg7 Qed5 Rh7 Qf3 Bg7 Qe3 Be5 Qf3 d6 Qh5+ Kd7 Qf3 Bf4 Qh5 Qh2 Kg4 Bc1 Qa8 Bb2 Qf8 Ba3 Qf3 Kc8 e8Q+ Kb7 Qd7 Ka6 Qe7 Qf4+ Kh3 Ka5 Rf6 Kb4 Re6 Ka4 Bb8 Kb4 Qd5 Bc1 Ra8 Ba3 Ba7 Ka4 Qa2 Qg3+
1nB5/2N2k2/b1pp1b2/2QrP1Bn/1N5N/p1PQ3N/Prn4p/BqK2bb1 w - - 0 1 illegal: No possible last move
2nr3b/b1K5/N2PRR2/4Q1q1/2r1p1R1/2PR1RP1/1b1r2NR/q1b2bk1 w - - 0 1 legal: proof: c4 f5 e4 d5 exf5 dxc4 a4 b5 d3 c6 Bf4 c3 axb5 c2 Kd2 c1B+ Ke1 c5 Bd6 c4 Ba3 c3 f4 h5 g3 g5 f6 c2 f5 h4 Ne2 h3 Bb4 Nd7 Bd2 Nb6 Bg2 hxg2 Ng1 Na4 Bf4 Nc3 bxc3 gxf4 Kf2 Kf7 Kf3 e5 Ke4 a5 h4 f3 d4 a4 h5 a3 d5 a2 h6 f2 b6 f1R h7 Bd6 b7 Ra4+ Qd4 Qd7 b8R Bda3 d6 Qe8 Kd5 e4 Nf3 g1B Qe5 Ba6 Rh6 Qe7 Kc6 Re1 Nbd2 Bcb2 Nh4 c1B Ng2 Bf1 Nb3 Rc4+ Nc5 Rd1 Rg6 Qd8 Rg4 Bd4 Rb1 Qa5 Re8 a1Q Re6 Rd2 Kd7 Bb4 Na6 Bbc5 Kc6 Ne7+ Kb7 Q5a3 Kc7 Rd8 h8R Nc8 Rh2 Qa5+ Kc6 Kf8 f7 Ba7+ Kb7 Ba3 Rb5 Bab2 Rd5 Qc5 Qf6 Be5 Rd3 Qe3 Qg5 Bh8 Qf6 Qg5 Qe5 Ra4 Kc7 Rc4+ Qc5 Kg7 f6+ Kg6 f8R Rd4 Qe5 Rb4 Nh4+ Kh5 f7 Rd4 Rg8 Ra4 f8R Rb4 Rgf4 Ra4 Rff3 Kg4 R8f6 Rd4 Rhf2 Kh3 Ng2 Kh2 Re2 Kg1 Rgg6 Qh6 Rg4 Rb4 Ne1 Qg6 Rh2 Qg5 Ng2 Rc4+
3bB3/1B1PRr2/1k1nNR2/2n1q3/P1n5/p1bPbbn1/B2rB1K1/1b2B1B1 w - - 0 1 illegal: No proof kernel
3R4/p1Pnb2K/n1qnb2Q/3r4/1N5q/PPpbNN1R/q4qN1/k3N2N w - - 0 1 legal: proof: d4 c5 c4 f5 e4 b5 exf5 bxc4 Nc3 Na6 Nb5 c3 Na3 c4 Nb1 Rb8 Bh6 Rb7 Bc1 Rb5 f4 g5 g4 h6 f6 Rc5 dxc5 Bb7 f5 Bc8 Bf4 gxf4 g5 h5 Be2 Nh6 Bf3 Ng8 Bg4 hxg4 Ke2 Kf7 h4 d5 g6+ Ke8 c6 e5 f7+ Ke7 g7 Kd6 c7 Kc5 h5 Kb4 b3 d4 f6 g3 Kf3 g2 Ke4 f3 h6 f2 h7 f1B Nh3 g1Q Nd2 Ka3 Qh5 Kb2 a3 d3 Nf2 c2 Rd1 c1Q Rh3 c3 Nc4+ Ka2 Nh1 Bb7+ Kf5 Qc5 Kg6 d2 Qh4 Bd6 f8N e4 f7 e3 Nd7 e2 f8N e1Q Nde5 Qb1+ Nd3 Qef2 Ne6 Bc8 Nd4 Nf6 g8N Be6 Ne7 Ka1 Nd5 Qc6 Nce3 Rg8+ Kh6 Rg5 Ne1 Qh8 Nb4 Be7 Ndf5 Bb5 N3g2 Be2 Nfe3 Ra5 Rc1 d1N Qg5 Nb2 Rd1 Rb5 Rd8 Nd7 Qh5 Qd4 h8N Qdh4 Nf7 Rd5 Ng5 Bd3 Ngf3 Nc4 Kg7 Qbb2 Qh6 Nd6 Kh8 Qa2 Kg7 Bc4 Kh7 Bd3+
N6R/1b4P1/R1nq1PR1/2r1bpp1/1RR2pk1/qB3RP1/p4K1n/1r4Nn w - - 0 1 illegal: No possible last move, all moves rejected
4q2n/Npb1Q3/R1P1brRp/3Kp3/R1R1P1rN/1pR4n/1p3n1P/3R1qk1 w - - 0 1 legal: proof: f4 c5 b4 cxb4 c4 g5 fxg5 a5 e3 d5 c5 a4 Bd3 a3 Bb2 axb2 Bc4 dxc4 Kf2 Kd7 Kf3 Kc6 Ke4 e5 d4 c3 g4 f6 a4 c2 a5 c1N d5+ Kb5 a6 Kc4 g6 h6 c6 b3 g5 Kc5 g7 Ne2 d6 Be6 d7 Nf4 a7 Na6 g6 Nb4 Ra6 Ne7 g8R Qe8 d8R Nbd3 g7 Neg6 Nf3 Bd6 Nc3 Bc7 Rd4 Nh3 Nb5 Rh7 Re1 Nh8 Nh4 Rd8 a8R Rd6 Na7 f5+ Kf3 f4 Ke4 f3 Qa1 f2 Qa3+ Nb4 Red1 f1Q R4d3 Kc4 Rf8 Kc5 g8R Rg7 Rf4 Rg4 Rg6 Kc4 R3d2 Kc5 Rf2 Kc4 Rf3 Nd3 Rg3 Rd8 Qe7 Rd6 Ra4+ Kc3 Re1 Kd2 Rd1+ Ke2 Rc4 Bc8 Rf3 Rf6 Kd5 Ndf2 Ra4 Bd6 Rfc4 Bc7 e4 Be6+ Kc5 Nh1 Rfc3 Kf2 Ra6 Kg1 Raa4 Bf5 Kd5 Bc8 Nb5 N1f2 R8a6 Bf5 Na7 Be6+
K1Q1B1b1/3b1PNP/4bn2/q5qB/2P4B/2Np1pn1/Nn1r2k1/n2B1N2 w - - 0 1 legal: proof: e4 e5 d4 exd4 f4 a5 b4 c5 a4 f5 h4 h5 g4 b5 axb5 Ra6 e5 Qe7 g5 Rf6 gxf6 Qd8 e6 Bd6 Ra3 Be5 fxe5 c4 Rd3 cxd3 Rh2 Rh6 Rg2 Rh8 Rg4 hxg4 Kf2 g5 e7 Kf7 e8B+ Ke6 h5 Kd5 b6 Ke4 c3 d5 b5 f4 h6 a4 h7 d2 b7 g3+ Kg2 g4 b6 a3 e6 d3 e7 a2 Be2 a1N Bh5 d4 e8B Bd7 Qc2 d1B Nf3 Na6 b8N Nc5 b7 Qa5 Nc6 Na4 b8N Nb2 Nfd2+ Ke3 Nb4 f3+ Kg1 g2 N8a6 Kf4 Kf2 g1N Nf1+ d2 Nc7 Be6 Na2 Bd7 Qd3 Bb3 Qa6 Bbe6 Bd1 Ne2 Qa8 Ng3 Qc8 Na4 Ba3 Nb2 Be7 d3 Be2 d1B c4 B1a4 Nbc3 Bac6 Bd1 Bcd5 N7b5 Nf5 Nd4 g3+ Ke1 g2 Kd2 Ng3 Nf5 g1Q Ng7 Nh6 Bd8 Ng4 Be7 Rf8 Bd8 Bg8 f7 B5e6 Be7 Nf6 Bd8 Kg5 Be7 Qg2+ Ke3 Kh4 Kd4 Kh3 Bd8 Qd2 Be7 Kg2 Bd8 Qa4 Kc5 Qg5+ Kb6 Qaa5+ Kb7 Ba4 Bd7 Re8 Kb8 Re7 Be8 Bad7 Kb7 Bf5 Kb8 Re2 Kb7 Rd2 Be7 Qb6+ Ka8 Qd8 Bc5 Bfe6 Bf2 Nf5 Bh4 Ng3 Bc2 Qb6 Bd1 Qba5+
Nb2Bn1N/k7/5Bp1/q1r1Bb2/3b2P1/n1PPN1qp/1n1K3r/3BN1bR w - - 0 1 legal: proof: b4 c5 a4 b5 f4 d5 h4 e5 h5 d4 h6 d3 c3 exf4 Qc2 g6 Ra2 Qf6 Ra1 Qg7 hxg7 dxc2 Ra2 Ke7 Rb2 Na6 axb5 Kd8 b6 Nb8 b5 Ke8 Rb4 cxb4 g4 Kd8 e4 h5 b7 Kc7 d3 Kb6 e5 f5 e6 a5 e7 a4 e8B a3 Nf3 b3 Bg2 a2 Bf7 a1B Nh4 f3 Be3+ Bc5 Bf4 c1B Na3 f2+ Kd1 b2 Bd2 f1Q+ Be1 b1N Be8 f4 Bh3 f3 Kc2 f2 Bc6 Qg1 Bd5 f1Q Rh2 Nc6 b8B Ra5 Bhg2 Bd4 Bdf3 Bf4 Rh1 Bf5 Bd1 Bb2 Nf3 h4 Be5 Bbc1 Nc4+ Ka7 Ne3 Nf6 g8N Nh7 Nh6 Nf8 Nf7 Qff2+ Bd2 Qg3 Ne1 Q1h2 Bf6 Ne5 Bc6 Nc4 Be8 Bb8 Be5 Rh5 Nh8 Nb2 Bf6 h3 Be5 Ra2 b6+ Ka6 b7 Ka7 Bf6 Qc7 Be5 Qg3 Bf6 Qa5 Be5 Bc7 b8N Rg5 Nd7 Bb8 Nb6 Na3+ Kb3 Rh5 Na8 Rg5 Nc4 Rh5 Bg5 Bce3 Bgf6 Bf2 Ne3 Be4 Bc7 Rc5 Bce5 Bf5 N1g2 Nac4 Kc2 Na3+ Kd2 Ra1 Be2 Rg1 Ne1 Rg2 Bf3 Rh2 Bd1 Bg1+
1B3n1b/1B2p1rB/r1R2p2/3rrR2/1RbPPPn1/1RQ5/1rr5/nK1k2B1 w - - 1 2 legal: proof: c4 b5 a4 d5 axb5 dxc4 b4 a5 b6 Bf5 b5 Qd5 Nc3 Bc8 Na2 Qd6 Nb4 Qd8 f4 axb4 Qc2 g5 Nf3 g4 Qd1 gxf3 h4 Nf6 g4 Ne4 g5 Qd6 h5 Qg6 hxg6 Nf6 Bg2 Ng8 Bh3 Nh6 Bf1 Ng8 d4 Kd7 Kd2 Ke6 Kc2 Kd5 b7 Ke4 b6 c5 g7 h5 e3 c3 g6 f6 Ba3 h4 Kb1 c2+ Ka2 c1R Kb2 f2 Rh3 b3 Be2 f1R Rf3 h3 Rg3 h2 Rf3 h1R Rb1 c4 Bd6 Rhg1 Bc7 Re1 Be5 Nh6 g8R Nd7 b8R Ba6 b7 c3+ Ka1 b2+ Ka2 c2 g7 Ng4 Rc8 Rh5 Bc7 Rd5 b8B Ra7 Ba5 Bc4+ Ka3 Ra6 Qd2 Rg2 Rc6 Rh2 Qc3 Rh7 Ra1 b1R Bd1 Rbb6 Rb1 Rb2 Rh8 Re2 g8B Rg7 Rh5 Re1 Rf5 Ra2+ Kb4 Re2 Bh7 Re1 Rb3 Re2 Rf2 Re1 Re2 Kf3 Rd2+ Re2 Rd3 Kf2 Rb1 Re1 Bf3 Re2 Rb2 Rce1 Rb1 c1N Bh1 Rac2 Ka3 Nb3 Bg2 Na1 Rb4 Red2 Bh1 Ke2 Be4 Re5 Bd5 Kd1 e4 Rg5 Rg3 Bg7 Rh3 Rg2 Rf3 Nf8 Rg3 Rgg1 Rf3 Rc1 Kb2 Rc2+ Kb1 Ree2 Qa3 Nh6 Rd6 Bb3 Bb7 Rb5 Rc4 Bh8 Re5 Rc3 Rdc6 Ra2 Bb4 Rcc2 Bd2 Rba5 Rb4 Rd5 Be3 Bc4 Rh3 R1g4 Bg1 Rf5 Qb2 Rg7 Rhb3 Rfg5 Qc3 Rh5 Rg5 Ng4 Rg6 Rhf5 Rg5 Rfe5 Rf5 Rab2+
3QK3/4R3/p6p/P1N3P1/1rrrRb2/NP1bb1r1/1kNnN1nR/n1n3R1 w - - 0 1 legal: proof: e4 b5 d4 f5 c4 bxc4 h4 e6 e5 Qg5 Bd3 h6 Be4 fxe4 d5 h5 dxe6 Qg3 Bh6 Qg5 hxg5 gxh6 Kd2 Ke7 Kc3 d5 Kb4 c5+ Kb5 d4 a4 c3 f4 c2 g4 c1B a5 a6+ Kb6 e3 Kc7 e2 b3 e1N g6 c4 g5 h4 f5 h3 g7 d3 Ne2 h2 Ra3 d2 Ng1 c3 Ra2 c2 Na3 Nc6 Nf3 Ng2 Re1 h1R Rf1 Nb4 Rg1 Nf6 Nd4 Rb8 Ne2 Rh3 g8R Ne4 f6+ Ke8 e7 Kf7 Kd8 Ke6 e8R+ Kd5 e6 Bc5 f7 Be3 f8N Rg3 e7 Bf5+ Kc7 Rb7+ Kd8 Rc7 Ne6 Rc4 N6d4 Bh7 Qe1 d1R Rg7 Nd2 Qf2 Kc5 Qf8 Bd3 Rf7 Rh7 Rf4 Rf7 Re4 Rf4 Kd7 Bb2 Qh8 c1N Ndc2 Be5 Qf6 Bb8 Qb6+ Kd5 Qd8 Rh4 Rg8 Bbf4 e8N Kc5 Nd6 Kd5 Rge8 Rhg4 Ne1 Nc2 R8e7 Na1 Ke8 Kc5 Nb7+ Kb4 Nc5 Rh4 Nd4 Kc3 Rb2 Nb1 Rf2 Nd2 Nec2 Kb2 Ne2 Bb8 R4e5 Rhd4 Re4 Bbf4 Rh1 Rf1 Rh2 Rd1 Rf1 Rb4 Rfh1 Rdc4 Rg1 Nf1 R4e5 Bf5 Rc7 Rdd4 Rce7 Bd3 Re4 Nd2
3q2R1/2Qnb1pr/1NN2N2/r4k1p/Pp3PR1/2P3r1/1n2b2R/K1rRbN2 w - - 0 1 illegal: No proof kernel
1Rq2B2/1qr4b/1pB1BpR1/p4r2/Pq1Kn1qP/4R2Q/3P1kBb/3n3R w - - 0 1 legal: proof: c4 e5 f4 exf4 b4 d5 cxd5 c5 bxc5 g5 Qc2 g4 Qb3 Na6 Qd1 Nb8 Nf3 h6 Na3 h5 Nc4 Nh6 Ne3 gxf3 g4 Ng8 g5 Rh7 Ng4 hxg4 Bg2 Rh6 Bf1 Rh8 Kf2 Kd7 e4 a5 h4 g3+ Kg1 b6 a4 g2 Kf2 g1Q+ Ke1 f2+ Ke2 f3+ Kd3 f6 g6 Bd6 g7 Qg4 e5 Ne7 g8R Nf5 Ba3 Ne3 Rg1 Rh5 Rg5 Ra7 Rb1 Rc7 Rh1 Na6 Qb3 Nd1 Rg6 Rf5 c6+ Ke7 Bg2 f1Q+ Kc2 f2 e6 Qf8 Qh3 Qb5 Rb3 f1Q Re3 Qff3 Bb4 Qc5+ Kd3 Bh2 Ba3 Kd6 e7 Be6 e8B Qcb4 Bd7 Kc5 d6 Kd5 Be8 Bg8 d7 Bh7 d8R+ Kc5 Rb8 Kd5 Bd7 Qc8 Be8 Re7 c7 Nc5+ Kc2 Ne4 Kd3 Ke5 Bd7 Kf4 Bc6 Qf8 c8B Rc7 Be6 Qc8 Bcd7 Ng5 Be8 Qfb7 Bec6 Ne4 Bf3 Qb2 Bf8 Qa3+ Kd4 Qe7 Qf1 Kg3 Qh3+ Kf2 Bg2 Qb4+
q6r/Q2B2K1/2R2p2/3p4/R2PBPrP/r3nq2/bqpk1B1R/2RB1nq1 w - - 0 2 legal: proof: g4 h5 gxh5 a5 b4 axb4 c3 b5 Qc2 b3 Qd1 b2 Qa4 b4 Qc2 Nf6 Qd1 Ng8 Na3 e5 Nc2 b3 Nd4 Bb4 cxb4 Ra3 Ndf3 Ra8 d4 e4 Ne5 Na6 Nd3 exd3 Bg2 Nb8 Bh3 Na6 Bf1 Nb8 Kd2 Ke7 Ke3 Kd6 Ke4 b1R Kf5 Kd5 f4 Kc4 e4 Kc3 a4 c5 e5 g5 b5 b2 e6 d2 h6 c4 a5 d6 b6 g4 b7 g3 h7 f6 Kg6 g2 e7 Nc6 b8R Qf8 e8B Be6 a6 Nb4 a7 Nc2 Rb6 Ne3 Be2 Nf1 Rc6 Nh6 Bd7 Ng4 Nh3 g1Q Nf2 Nge3+ Ng4 Qb8 Qa4 d1Q Bf3 Qd8 Be4 Qf3 Kg7 Bg8 Ra2 Ra1 h4 b1Q Rah2 Qb2 Qa6 Rc8 a8B Ra3 Qa7 Rc7 Bb7 Qa8 Bc2 Be6 Bd1 Kd3 Bd2 c3 Be1 c2 Bg3 Ba2 Bf2 Rd8 h8R Kd2 Rh5 Rh8 Ra5 Rcc8 Ra4 d5 Ba6 Rce8 Bd3 Re5 Bg6 Rg5 Nh6 Rg2 Ng4 Re8 Be4 Rh8 Rd6 Ng3 Rc6 Qe1 Be2 Qea1 Rf1 Qe1 Bg1 Qef2 Rc1 Qe1 Bf2 Qg1 Bd1 Ngf1 Rca6 Qe2 Re6 Qf3 Rc6 Rxg4+
B1BN3q/p2P2kN/nBp3q1/K2b1b1n/2N3p1/pPP4B/3rqr1N/1Q6 w - - 0 1 legal: proof: e4 b5 h4 g5 a4 bxa4 g4 d5 exd5 e5 f4 e4 Rh3 Bg7 Rf3 Bf6 Raa3 Be5 fxe5 h6 Rf4 gxf4 g5 h5 Rg3 Ba6 Rg2 Bc8 Rg4 hxg4 d4 Kf8 Kd2 f5 Kc3 f3 Kb4 a3 h5 f2 d6 e3 g6 f4 g7+ Kf7 b3 e2 d7 e1Q+ c3 f3 d5 Qf8+ d6 Ba6 d8N+ Ke8 e6 Nf6 g8B Qe7 h6 Kf8 h7 Be2 Bh3 f1B Be3 f2 Bb6 Bg2 Ka5 f1Q Nd2 Qh4 Nc4 Bd3 Nf3 Qe2 Qb1 Qg7 Nh2 Qg6 e7+ Kg7 e8B Nh5 Bd7 Bf5 Bd5 Rf8 h8N Na6 Bc8 Rb8 Bc6 Bd5 Ba8 c6 Nhf7 Rb7 Ng5 Rd7 Nh7 Qhf6 Nb7 Qd8 Qa2 Rff7 Qb1 Qh8 Nd8 Bfe6 Qe1 Rf2 Qf1 Bf5 Qb1 Re7 d7 Re4 Bc5 Rd4 Bb6 Rd2
2Bq1BR1/1Bb2R2/1pB2b2/nPp1k3/1qP1b1bb/1rr1R1R1/2n1P3/2NK1n2 w - - 0 1 legal: proof: d4 f5 b4 e5 dxe5 h5 g4 fxg4 b5 a6 Qd3 a5 Qg3 h4 Nc3 hxg3 Nd5 Rh5 Nb4 axb4 Nf3 Rh4 Ng1 Rh8 c4 Kf7 f4 Ke6 h4 c5 a4 g5 h5 d5 h6 b6 h7 g2 a5 d4 a6 d3 a7 b3 Be3 g3 Rh6+ Nf6 Ra5 d2+ Kd1 b2 Rh5 b1B Rh6 g4 Rh2 Be4 Rh4 Bg7 Rh1 Nh5 Nh3 g1B Ra2 g2 Ra3 g3 Nf2 Bf6 Rh3 Bh2 Nd3 g1Q Nc1 g2 Rg3 Nc6 Rb3 Re8 h8R Na5 Rhg8 Qh1 Bd4 g1B Rbe3 Bf2 Bb2 Kf5 e6 Bd7 e7 Be6 Rh3 B2h4 Rhg3 Rf8 e8B Qf3 Ra3 Qc3 Bc6 Qb4 Rae3 Rf7 Bb7 Rd7 Bc8 Rd3 Bg2 Rb3 Be5 Bd7 Bd6 Ke6 Be7 Rc3 f5+ Ke5 Bf8 Be6 R3g7 Ng3 Rf7 Nf1 Rgg3 Bfg5 f6 Bg4 Rg7 Rb3 f7 Bf6 Rg8 Kd4 Rgf3 Bc7 Rg3 Ke5 Bh1 Rb8 a8B Rc3 Bab7 Ra8 Be7 Ra7 f8R Ra6 Rd3 Rb3 Rf7 Ra8 Kc2 d1N Bf8 Ra3 Bd7 Bg6 Rg1 Nc6 Bd5 Be4 B7e6 R8a4 Rg3 Na5 Na2 Nde3+ Kc1 Qc8 Bdc6 Qd8 Bec8 Nc2 Kd1 Rc3 Nc1 Ra2 Rdd7 Rb2 Rdd3 Bd6 Rdf3 Rbb3 Re3 Bc7+
NKrr1QBb/B2kN3/r2r1qq1/1N3p1n/3n2pP/r3NPB1/1B2n1P1/3b4 w - - 0 1 illegal: No possible last move, all moves rejected
5B2/Bn1p1P1r/1p3p1r/1qNPK3/1pRRB1bb/r7/kb2RP1R/r1B1n3 w - - 0 1 illegal: No possible last move, all moves rejected
b2n1K2/2B3n1/qppB1q1p/4rBk1/1rRpR3/B1P1bp1p/PPR1R3/Q7 w - - 0 1 illegal: No proof kernel
2b2qq1/4rn2/7q/1Rb1n3/QR1nr2P/P2bRPk1/Q1bB4/K1Q1R2R w - - 0 1 legal: proof: c4 g5 e4 f5 exf5 a5 b4 d5 bxa5 g4 cxd5 c6 Bb5 cxb5 Ke2 h5 f3 Qb6 Nh3 Qd6 Nf2 Qd8 Na3 Kf7 Nc2 Ke8 Ne3 g3 Neg4 gxf2 Ne5 Nd7 g4 Nb8 g5 Nd7 Ng4 hxg4 Re1 Nb8 Rf1 Bg7 Rh1 Bf8 Kd3 Kd7 Kc2 Kd6 Kb1 Ke5 h4 Kf4 a3 f1B a6 e5 f6 e4 d4+ e3 g6 g3 f7 g2 d6 g1Q g7 b4 d7 b5 a7 b3 d5 b4 d6 b2 Rh2 Nc6 Rf2 Bd3+ Rc2 Nh6 g8R Nd4 Qe1 Be7 Re8 Rb8 a8Q Rb7 Qd1 Qg6 f8Q+ Kg3 Ka2 b1N Rf2 e2 Rf1 Nd2 Rh1 e1Q Qg8 Qe3 Qaa4 Nc4 Bd2 Bc2 Rc1 b3+ Ka1 Qeg5 Qe6 Nf7 Qd5 Bf8 Re3 Q5h6 Qf1 Qe7 d8R Bd3 d7 b2+ Ka2 b1B+ Ka1 Bbc2 Re8 Nb2 Qa2 Nc4 Qd1 Qd8 R8e5 Bb4 Rf5 Re8 Rb1 Qgg5 Ree1 Re2 Rb5 Qdf8 d8R Bc5 R1b4 Qgg8 Re8 Rc7 Re4 Nce5 Qc1 Re7 Re3 Bc4 Reb3 Re4 Rbe3 B4d3
2N2N2/P2PN1Qb/1r1q4/1N1PnnK1/1b4bQ/r6N/r2Q1B1k/2nbr3 w - - 0 1 legal: proof: c4 a5 b4 f5 bxa5 d5 cxd5 c5 e4 Ra7 exf5 Nh6 a4 Ng8 Ra3 Ra6 Rb3 Ra8 Rb4 cxb4 f4 g5 g4 h6 h4 Qd6 f6 Qb6 f5 Qd8 Be2 Bg7 Rh3 Bf8 Rf3 h5 Rf4 gxf4 g5 Ra7 Bf3 Ra8 Bg4 hxg4 Kf2 Kd7 d4 Kd6 a6 e5 h5 b5 g6 e4 f7 b3 f6 g3+ Ke2 b2 a5 e3 Kf3 e2 h6 e1R g7 b4 a7 g2 a6 b3 h7 Bg4+ Kf2 f3 Kg3 f2 Kh4 f1B Qd2 Nh6 g8Q Nd7 Na3 b1R Qg7 b2 Nh3 g1N Kg5 Rg8 h8Q Ne5 Qh7 Nf5 Qh4 Be7 f8N Bfe2 Ng6 Bd1 Nhf4 Ra1 Nh3 b1B Bb2 Bf8 Ne7 Ra2 f7 Ne2 Bc3 Rb8 a8N Nc1 a7 Rb3 Nb6 Qc7 Nc2 Rba3 Bb2 Rh8 Ba1 Rh6 Nbc8+ Kd7 d6 Ke6 d7 Qd6 Ng8 Kd5 Nge7+ Ke4 d5 Kf3 Bd4 Rf6 Bf2 Kg2 Nd4 Kh2 Qgh7 Qc5 Q7h6 Rb6 Nb5 Qd6 Qg7 Qb8 Nc6 Bb4 f8N Qd6 N6e7 Ne3 Ng8 Bh7 Nge7 Nf5
2n5/1bb4P/2pk3r/B4PQR/QP4p1/KQr2nr1/1nR2R2/q3R1Rr w - - 0 1 legal: proof: c4 a5 b4 f5 e4 b5 exf5 d5 cxd5 a4 Bc4 Bb7 Bb3 axb3 a4 Ba6 axb5 Bc8 f4 g5 g4 h6 f6 Nd7 f5 Nb8 Nh3 Be6 Nc3 Bc8 Nf4 gxf4 Ne4 h5 g5 Be6 Nf2 Bc8 Ng4 hxg4 h4 Kd7 d4 e5 Kd2 f3 Kc3 b2 Kb3 b1N f7 f2 h5 f1R b6 e4 b7 e3 h6 e2 h7 e1R g6 Re8 d6 Rfe1 d5 Na6 b8R Nd2+ Ka3 Be7 f8R Re6 g7 Nf3 Rh5 Bh4 Bg5 Bb7 Rc8 Ne7 g8Q Rh6 Qf7 Bg3 Qa4+ Bc6 Rg8 Nc5 Rg1 Nd3 Be3 Ra6 Bb6 Nb2 Ba5 Be5 Rg6 Rb6 Re6 Bf4 Qc2 Bb7 Ree1 Rc6 Qb3 Rc1 Qf6 Rc3 Qd4 Rhg8 Qd1 Rg5 Qa1 Nc6 Qd1 Ree3 Qc2 Ne7 Qd1 Ke8 d7+ Kf7 Qc2 Qh8 d8Q Kf6 d6 Ke5 d7 Kd6 Qg8 Rgg6 Qg7 Rge6 Qg5 c6 Ra8 Nc8 d8R+ Ke5 Re8 Kd6 Ref1 Red3 Rf2 Re1 Re5 Rf1 Re1 Qd4 Rgg2 Rh1 Rgg1 Ne7 Re8 Nc8 R8e2 Bh2 Qd1 Re3 Qa1 Qd1 Qa2 Qa1 Rc2 Re2 Rff1 Rg2 Rff2 Bg3 Re5 Kd7 Ree1 Qc1 Qa1 Bc7 Ka2 Kd6 Qb1 Nd3 Qa4 Rg3 Qbb3 Nb2 Ka3 Qa1+
4rB1K/3p3q/1Qn4b/QPnP3b/1BbB4/3Rqk2/1P3BbQ/1B1b2rn w - - 0 1 illegal: No proof kernel
1QQ3nB/1q1P1r2/K3QR2/2p3pb/2P1r2k/1RQp3r/1RQr1rP1/2r3n1 w - - 0 1 legal: proof: e4 f5 a4 b5 axb5 g6 h4 Bb7 e5 Bg7 h5 Nc6 h6 Bc8 Bd3 Nb8 Be4 fxe4 hxg7 d5 c4 d4 Nc3 dxc3 Rh6 e6 Rh3 Kf7 Rh1 Ke8 d4 Nh6 d5 Bd7 d6 Bc8 Ne2 Ng8 Nf4 Kf7 Nd5 exd5 Qd3 Ke8 Qd4 Qf6 Qd1 Qd8 Ke2 Kf7 f4 c5 b4 a5 f5 h5 f6 e3 Kd3 e2 b6 e1R b7 d4 b5 h4 b6 c2 Rb1 g5 e6+ Kg6 f7 h3 f8R h2 e7 a4 Rg1 h1R Bb2 c1R Qf3 Nc6 b8Q a3 b7 Bg4 d7 Kh5 e8Q+ Kh4 Qc8 a2 b8Q a1R Qee4 Qc7 Rf6 R1a2 Bc3 R8a4 Rb3 Qb7 Rf1 Rac2 Rf2 Rh3 Ba1 Rca2 Rfb2 Rh7 Qe2 Bh5 Ke4 Ra8 Qc3 d3 Kd5 Ne5+ Kd6 Nf3 Qec2 Nh6 g8Q Ng1 Qe6 Re4 Qcc7 Ng8 Qcc8 Qa7 Kc6 Rf7 Kb5 Qc7 Qa5 Ra6 Qb4 Rd6 Qa5 Rd5 Ka6 Rf5 Rb1 Rff1 Bd4 Rf2 R1b2 Rd1 Be5 Raa1 Bd4 Rac1 Qac3 Rdd2 Rf5 Rh1 Bh8 Rh3 Rf6 Qb7+
2R5/1Qp3kr/1QqRn2p/1RP2q1P/3p2B1/qqn1b2b/1r1PRp2/2K1Q2R w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 Qg5 f5 Qd8 b3 Qe7 Ba3 Qf6 Bc5 Qg5 Be3 Qd8 Bf4 exf4 e4 f6 e5 g6 e6 g5 Nf3 g4 Na3 gxf3 Nc4 Bg7 Ne5 fxe5 Rb1 Bh6 Ra1 Bf8 c4 d5 g4 a5 h4 f2+ Ke2 e4 h5 d4 f6 a4 b6 a3 g5 a2 g6 e3 c5 Bh6 g7 Qd7 b4 Nc6 e7 Kf7 e8R Nge7 g8R Nd8 b7 Rb8 b5 Ne6 b6 Nd5 Qe1 f3+ Kd1 e2+ Kc1 Nc3 Rb1 a1Q Rg6 Be3 Bh3 f1Q Bg4 h6 Re7+ Kf8 f7 Qc6 Rf6 Qa8 Rb5 Rh7 Re8+ Kg7 f8R f2 Rh8 Qh3 Rhf8 Ng5 Rd6 Ne6 Rh8 Bd7 Rc8 Qa2 Rhd8 Qb3 Re8 Ra8 b8Q Ra2 b7 Rb2 Qa8 Qhf3 b8Q Qf5 Qab7 Qa3 Qd1 e1Q Qb6 Qf1 Q8b7 Qc4 Qg1 Qcb3 Qe1 Ng5 Re5 Ne6 Re4 Bf4 Re2 Be3 Rd8 Bc8 Re8 Bd7 Rc8 Qf6 Qa8 Nf4 Bf3 Bh3 Bg4 Ne6 Qab7 Qf5
B4Rb1/p1Q2P2/rRb2qQ1/1r1b4/1P2nRnk/2P4b/1p1R3R/4K1rR w - - 0 1 legal: proof: h4 g5 hxg5 b5 a4 c6 axb5 c5 b3 c4 Ba3 c3 Bb2 cxb2 c4 Bg7 e4 Bc3 dxc3 e5 Ne2 f6 Nd4 exd4 e5 f5 Nd2 Ne7 Ne4 fxe4 Qe2 Ng8 Qh5+ Ke7 Qd1 Ke8 g4 Kf7 f4 Kg6 b4 h5 c5 d5 c6 e3 b6 d3 c7 h4 b7 d4 e6 h3 e7 e2 e8R h2 Bh3 Qf6 Re4 Nc6 b8R Rh6 Rb6 Ne5 Qc2 Rb8 Bg2 Bf5 c8Q d2+ Kf2 e1R Rd1 d3 Qc7 Rg1 Bf3 Bd7 f5+ Kg7 g6 Rb7 Ra1 d1B g5 d2 Rf4 Rb8 Bg2 Bf3 Rd1 Bc6 Bf3 Ng4+ Ke2 Kf8 g7+ Ke7 g6 Bd5 Rd6 Rb5 Rb6 Bf7 Ba8 Bd5 Rdf1 d1B+ Ke1 Be2 Rf2 Bec4 Rd2 Qg5 Qb1 N8f6 g8R Ne4 g7 Qf6 Rh8 Bc6 g8R Bf7 Rf8 Bg8 Rc8 Rg6 Rh3 Kf7 Rf8+ Kg7 Re3 Kh6 Ree2 Kg5 Qc2 Kh4 Rg2 Qe7 f6 Bcd5 f7 Qg5 Rb7 Ra6 Rb6 Qf6 Rge2 Ne5 Rf2 Bh3 Rg2 Ng4 Qd3 Nc5 Qg6 Ne4 Rge2 Rg3 Rf4 Rg2 Rg1 h1B Rgf1 Rg3 Rh2 Rg1 Qf5 Bc6 Rfb8 Nf2 Rf8 Bhd5 Qc2 Rg2 Qg6 Ne4 Rfh1 Rg1+
6n1/1K2Q3/r1bp4/1PRRpb1r/br4Q1/1k2P2n/3bP1q1/Rb1RRN1R w - - 0 1 illegal: No proof kernel
2bb2R1/1p2b2k/P6n/nQRP1P1p/2Rq4/1K2n1R1/1Q1Nq2b/1QrQ4 w - - 0 1 legal: proof: d4 d5 b4 a5 bxa5 f6 c4 Ra6 cxd5 Bh3 e4 Nc6 d6 Qa8 d5 Qd8 e5 Bc8 d7+ Kf7 Bf4 Nb8 Bc1 Rd6 exd6 Kg6 Qd2 Kf7 Qc2 Nc6 Qd1 Nb8 h4 g6 h5 Bh6 Be2 Bg5 Bb2 Be3 Be5 Bh6 Bg4 Bf8 h6 fxe5 Bf3 Nc6 Bh5 Nb8 g4 Nc6 g5 Nb8 Nc3 Bg7 Nce2 Bf8 Nf4 gxh5 g6+ Kf6 g7 Kf7 Ng6 hxg6 Kd2 c5 Kc2 c4 f4 e4 a4 e5 f5 g5 a6 c3 a5 g4 h7 g3 a7 g2 a8Q e3 a6 e2 Rh2 e1Q Rc1 e4 Qe2 e3 Qd2 e2 Qd1 Be7 Rh1 Nh6 g8R Qb6 d8R Nc6 d7 Qd4 Kb3 c2 Nf3 g1B Rh4 Bh2 Rg3 Qed2 Re4 e1N Rdg8 Ng2 d8Q Qe2 Qb6 Ne3 Nd2 Bd8 Qb5 Be7 Qa7 Kf6 Ra1 c1B Qab6 Bca3 Rh4 Bd8 Rc1 Bae7 Rc5 Kf7 Re8 Rg8 h8Q Rg4 Rg8 Rf4 Qh1 Rf1 Qe5 Rc1 Qd1 Qe4 Qb2 Qe5 Rhc4 Qd4 Q6a5 Kf6 Qaa2 Kf7 Rf3 Kf6 Qab1 Kf7 Rf8+ Kg7 Rg3+ Kh7 Rfg8 Na5+
1R6/1rnB1nPn/2bQK2R/P3b3/5bPP/1BN5/1kqN2q1/n1rbR3 w - - 0 1 legal: proof: f4 h5 c4 d5 cxd5 c5 d4 f5 g4 a5 b4 axb4 Be3 g5 Bf2 h4 dxc5 Ra4 fxg5 Ra8 e4 fxe4 Bg3 hxg3 Ke2 Kf7 Ke3 b5 Kf4 e5+ Ke3 g2 a4 b3 h4 b4 a5 b2 c6 b3 g6+ Kf6 g7 Bd7 c7 Bc6 c8B Bd6 Qd3 Ra7 Qc4 Nh6 Na3 b1B Qc1 b2 Rh3 Nf7 Bf5 Rb7 Nb5 Bc2 Bc8 b1Q Qd2 Bd1 Rg3 Qc2 Qe1 Na6 Na3 Nc7 Ne2 g1N Bd7 Qa8 Nb1 Rc8 Nec3 Nh3 Be6 Nhg5 Qd2 Nh7 Kf2 e3+ Kg2 e4 Bb5 Ke5 Rf3 e2 Kg3 e1N Rf6 e3 Rh6 e2 Qd3 Qa2 Nd2 Nc2 Bc4 Qb3 Bd7 Qb1 Qg6 Kd4+ Kf3 Bh2 Bb3 Be5 Qd6 Qa2 Rc1 Na1 Rb1 Qc2 Rc1 Bf6 Kf4 e1B Rb1 Kd3 Kf5 Bg3 Rc1 Bf4 Rb1 Na6 Ke6 B6e5 Rc1 Qa7 Rb1 Qf2 Rc1 Qg2 Rb1 Be2 Re1 Bd1 Na2 Qb2 Qe7 Rb6 Be8 Ba4+ d6 Rc1 Nc3 Rb8 d7 Rb7 Qc5 Bc6 d8R+ Bd4 Rb8 Qc2 Nd5 Bde5 Qd6 Kd4 Bd7 Kd3 Ne7+ Kc3 Nd5+ Kb2 Nc3 Nc7+
NrB1r1n1/P2q1Np1/2P3K1/3pB1R1/1r1QR3/4q2N/bp1P3P/1bkr4 w - - 0 1 legal: proof: e4 h5 a4 f5 exf5 a6 g4 hxg4 b4 e6 a5 Nh6 b5 Ng8 Qf3 Nc6 Qxc6 axb5 Qb6 Bc5 Qa6 Bb6 Qxb6 cxb6 Ke2 Ke7 Kd3 Kf6 Ke4 e5 f4 b4 c4 g3 a6 b5 c5 g2 c6 b3 a7 b2 Bd3 b4 Ra5 b5 Nh3 g1R Na3 b1R Bb2 b3 Nc4 b4 Nd6 Rgd1 Re1 Rb8 Nf7 d6 Bb5 Be6 Ba6 Qd7 Bc8 Bc4 Bc3 b2 Bd4 b3 Re3 Ke7 f6+ Ke6 Rg3 Rh6 Nh8 d5+ Kf3 Kf5 f7 Re6 f8N Re8 Ne6 e4+ Ke3 Rb5 Bc3 Rb8 Kd4 e3 Nc7 e2 Na8 e1Q Ra4 Ra1 Rg2 b1B Rg5+ Kf6 f5 Ke7 f6+ Kd6 f7 b2 f8Q+ Ke6 Rb4 Ra4 Qf4 Bca2 Nf7 Qg3 Rc4 Rab4 Qf2 Qg1 Ke3 Qe1+ Kf4 Qg1 Rd4 Qe1 Qh4 Qe3+ Kg4 Kf6+ Kh5 Ke6 Nh8 Kd6 Nf7+ Kc5 Rf4 Kb5 Be5 Ka4 Rc4 Kb3 Qf2 Qf4 Re4 Kc2 Kg6 Kc1 Qd4 Qe3
N7/1qn3n1/nPn2n1P/rN5R/2B2r2/2qK1R1b/r1B1P1Pk/1bQb1B2 w - - 0 1 illegal: No proof kernel
1q1r4/n3B3/5R2/BrR1N1k1/nbR2qP1/Qn2P2b/P2bbPN1/4n1rK w - - 0 1 illegal: No possible last move, all moves rejected
2nq3K/3b4/B3B3/bq3pP1/r2b1P2/QN1R2qN/Nn1q2PP/1Rqkr3 w - - 0 1 illegal: No possible last move
4b3/2bNrn1B/8/P3RRPQ/kq2q1p1/2Pq1b2/1qnNPN1K/B1r1r3 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 h3 g5 gxf5 g4 h4 Qg5 hxg5 exf4 Kf2 h5 Kg2 b5 a4 d5 c3 Kd7 a5 Kc6 f6 b3 f7 b2 Rh4 b4 Nh3 Kb5 Kh1 f3 Ra2 f2 Bg2 f1B Qb3 d3 Nd2 b1Q Ng1 d4 Rc2 Qb2 Nh3 Bd6 f8N Na6 Nb1 d2 Ng6 d1R Qc4+ Ka4 Rd2 d3 Be4 Nh6 Qd5 b3 Rc2 d2 Na3 Re1 Nb5 d1Q Bg2 Ra7 Qd3 Bc7 Nd6 Nb4 Nc4 Nf7 Be4 Bd7 Rd2 Nc2 Nge5 Be8 Kh2 Bg2 Bh7 Bf3 Nf2 Rb7 Rh3 h4 Rg3 h3 Qg6 Ra7 Rd5 Qd3 Qh5 Rf8 Rg2 Rb7 Kg3 h2 Nd2 h1Q Rg1 Ra7 Rf1 Rh8 Bg6 Rh6 Bh7 Rd6 Nd7 Rb7 Rf5 Re6+ Re5 Re7 Be4 Rb6 Qg6 Qh7 Qh5 Qg6 Kh2 Qc6 Bh7 Qce4 Kg3 Rh6 Qg6 Rh1 Qh5 Qa3 Bb2 Qab4 Ba1 b2 Qh2 b1Q Qh5 Rg1+ Kh2 Q1b2 Nh1 Bg2 Rf5 Bf3 Nf2 Rc1 Bg6 Rgd1 Bh7 Re1
3R2QN/1b2P1P1/B1brr3/1P1r1PNK/p6n/4BrRN/1bq5/2n2nnk w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 e5 d4 exd4 e5 f6 Qc2 f5 Qe4 fxe4 Ke2 Kd7 b4 a5 g4 c5 f4 h5 b6 c4 g5 d3+ Kf2 e3+ Kf3 h3 b5 h4 Kg4 a4 e6+ Kd6 f5 Ke5 g6 Ke4 b7 d2 g7 d1R d6 h2 d7 h3 Na3 e2 Bg5 e1R Bh6 c3 Rb1 c2 Ne2 c1N Kh5 Kf3 Rg1 h1B Rg4 h2 Rg1 Nc6 b8Q Ra6 Qa8 Rd5 Qa7 Qc7 d8N Bb7 Nc4 Nd4 Nf7 Ba3 Bh3 Ne7 Qa8 Bb2 Nf4 Ng6 e7 Rad6 Qg8 Ree6 Bg2+ Kf2 Nce5 Qc2 Rd1 Nde2 Ng5 Nh4 Neg6 Ng1 Nfh3+ Kg3 Be4 Bg2 Ra1 h1N Ra3+ Kh2 Rc3 Rh7 Nh8 Bc6 Rdd3 Bb7 Rc8 Bc6 Rd8 Ng3+ Kg4 Nf1 Kh5 Bb7 Rg3 Kh1 Bf3 Rd2 Bc6 R2d3 Bd7 Rf3 Bc8 Rd5 Nhf7 Bc6 Ba6 Rh8 Qh7 Rf8 Nh8 Rff6 Qg8 Red6 Nh7 Rg6 Be3 Rge6 N7g5 Bb7 Nhf7 Rf2 Bd2 Rd3 Bf4 Bgc6 Be3 Rf3 Nh8 R3d5
Rbqb3k/1Qq5/1P1Np1P1/R2P4/3N1P1r/R4r1n/1B2K1Bq/qqb1r3 w - - 0 1 legal: proof: e4 d5 c4 dxc4 a4 b5 f4 bxa4 Ne2 f5 Ng1 fxe4 h3 g5 Qf3 Bg4 Qd1 Bf3 gxf3 Nd7 h4 g4 Ra2 Nc5 Ra3 Ne6 Ra1 Ng5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 b4 Kf7 d4 Kg7 b5 c5 f5 h5 b6 a5 d5 c3 f4 c2 g6 e3 Ba6 h4 Qe2 c4 Qg2 a3 Bc8 h3 Bb2+ c3 Qf1 c1Q+ Ke2 a4 Qe1 g3 Rh2 g2 Qh4 e6 Bb7 a2 Qh5 a3 Kd3 e2 Bc6 e1R Qg4 Nf6 Bd7 c2 Be5 Bd6 Bc3 Bb8 Qe2 Qc8 Bb5 Rh4 Nf3 g1Q Nd4 Ne4 f6+ Kh8 f7 Ng5 Bb2 Qf2 Rh1 h2 Nd2 Nh3 Ne4 Ra7 Rf1 h1Q Nd6 Qfh2 Rf3 Rc7 Rg3 Qb1 Kd2 Rc3 Bd3 Q1g1 Be4 Qf1 Bg2 Rf3 Qa6 Qfc4 Qb7 Q4c7 Bc1 Qb3 Bb2 Qb5 Rd1 a1Q Rc1 a2 Rd1 Rff1 Ra3 Rf3 f8R+ Kg7 Rf5 Kh8 Ra5 Qf1 Re5 Qb1 Re3 a1B Rea3 Qfc4 Bc3 Qca2 Ra8 Bb2 R3a5 Ba3 Bb2 Qaa1 Rc1 Rh1 Rd1 c1B+ Ke2 Bb4 Rd3 Rhf1 Ne8 Be7 Rda3 Bd8 Nd6 Re1+
1B5r/8/1r1B3q/1bPpN1r1/1RRbQb1P/1r1P1P1k/rRN1r3/3Kq2n w - - 0 1 legal: proof: b4 c5 g4 b5 Bg2 h5 Be4 hxg4 a4 cxb4 axb5 Nc6 f3 Nd4 f4 Nf3+ exf3 f5 Kf2 fxe4 Kf1 Bb7 Ke1 Bc8 c4 Kf7 f5 Kf6 d3 e5 b6 a5 h3 d5 c5 g5 b7 b3 b8R g3 Qd2 b2 Ra4 e3 Rb3 e4 Ke2 g4 Rc3 Kg5 f6 Kh4 f7 g2 Qd1 g3 Rh2 Qg5 Ke1 e2 Qc2 Ra6 Ra1 a4 Qd1 a3 Ra2 Qh6 Rb3 Rb6 Be3 Bd6 f8B Bf4 Nd2 b1R Rab2 a2 Qc1 a1R Be7+ Nf6 Rb4 Ba6 Rb5 Ra2 R5b3 Bb5 Bd6 Ng4 Nc4 Nf2 Rb4 Nh1 Rc2 Rbb2 Ne5 Rb3 Kd2 e1R Ne2 g1R Nd4 g2 Bb8 Ref1 Qe1+ Rf2+ Kd1 Kg3 Bd2 e3 Rcc4 Kh4 Nc2 e2+ Kc1 Kg3 h4 Bc6 Qd1 e1Q Bd6 Re2 Be3 Qf2 Qe1 Bb5 Bd2 Rf1 Kd1 g1B Rg2+ Kh3 Be3 Qg3 Bc1 Bd4 Rf2 Bg5 Bf4 Rg1 Bb8 Qg4 Bh2 Qge6 Bg3 Bf4 Bh2 Rgg8 Rg2 Rf2 Qe4 Re2 Nc6 Bg3 Ne1 Rec2 Qe5 Rcc3 Rb2 Rc2 Qe3 Rf2 Nc2 Rg5 Qf4 Qe3 Qe4 Bc7 Bd6 Rfg2 Be7 Bf4 Ne5 Qf2 Bed6 Qg3 Be7 Re2 Bed6 Qe1+
6R1/n1rQ4/1K2rbP1/2Pr2NB/Bb3bpP/8/b3q1P1/bRNB1qbk w - - 0 1 illegal: No proof kernel
b2b2K1/2BR3r/1PPPNn2/P2NQqBk/b1r4b/1r1bR2q/2pR2r1/8 w - - 0 1 illegal: No proof kernel
R1R1N1b1/2pPP1BR/q1NP4/pB4kn/3r2b1/q4n2/rPq5/bQ3K1b w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 bxa4 h4 exf4 g3 g5 Ra2 Bh6 Ra3 g4 Ra1 Bg5 hxg5 fxg3 d4 Ke7 e4 h5 e5 f5 g6 f4 e6 Kf6 d6 f3 d7 a3 d5 h4 g7 g2 Ne2 g1Q Rh3 a2 Bd2 g3 Nc1 f2+ Ke2 g2 Rc3 h3 Rc5 h2 Rc2 h1B Rc4 Qf8 Qc2 Rh4 Nd3 Qh2 Qd1 g1Q Nc3 Nc6 Ne5 Qa3 Nb5 Qg6 Nd6 Rd4 Bc3 Kg5 Ne8 Nf6 Qb1 Nh5 Rb4 a6 Rb8 Ra7 Ra8 Qh6 Bg2 Qg6 Kf1 Qc2 Bh3 Qg3 Bg4 Qgd3+ Be2 Qg6 Bb5 Qf6 Nd3 Ne5 Nb4 Nf3 Nc6 Qh6 Qe1 Qhg6 Rd1 a1B e7 Bb7 Rd2 Qh6 g8R+ Qhg6 Ke2 f1B+ Kf2 Bh3 d6 Bg4 Kf1 Qca4 Rf8 Qgc2 Rh2 Qa5 Qb1 Qb6 Nb8 Bd5 Rh8 Bg8 Nc6 Rb7 Rc8 a5 Rh4 Qa6 Rh7 Ra4 Bg7 Rb6 Bc4 Rbb4 Bb5 Rd4 Ra8 Bf5 Rf4 Bg4 Rf8 Bf7 Nf6 Bg8 Rfc8 Qab3 Ne8 Ra2 Be5 Qa4 Bg7 Qa3
1Q6/P1n1P1b1/rq3bn1/3b1p1R/1NNrk1KB/3b1p1P/1NB3P1/2bb3R w - - 0 1 illegal: No possible last move, all moves rejected
3N1n2/2k1b3/2q3q1/4q1rP/p1nrRR1r/qqPNP3/Q1PBpRKB/8 w - - 0 1 illegal: No possible last move, all moves rejected
1n5q/2Pp1Ppk/4Bbq1/KR1N1Nq1/3QNrb1/1Br3P1/2RPr3/q6b w - - 0 1 legal: proof: f4 b5 g4 f5 a4 fxg4 f5 e5 axb5 c5 b4 cxb4 Na3 g3 Bb2 g2 Nb1 Na6 Bd4 Nc5 Be3 Ne4 Bf4 Ng3 hxg3 exf4 c4 Kf7 e4 a5 c5 h5 b6 h4 f6 Kg6 b7 b3 b8N a4 e5 a3 e6 h3 e7 b2 e8B+ Kh7 c6 f3 c7 a2 Nc6 h2 Ne2 g1Q Qa4 f2+ Kd1 Ba6 Kc2 Ne7 Nf4 Be2 Kb3 Bg4 Bh3 f1R Kb4 Qe3 Nd5 Rf4+ Nd4 Nc6+ Kb5 Ba3 Bf7 Re8 Rc1 h1B Rc2 Be7 Nf5 Nb8 Qd4 Ra3 Nbc3 Qc8 Rac1 a1Q Ne4 Rc3 Rb1 Qd8 Be6 Qc8 f7 Bf6 Kb4 Re7 Bf1 Qh8 Bc4 Re8 Bb3 Re7 Rbc1 b1Q Rb2 Rf3 Rcc2 Qg5 Ba2 Rf4 Ka5 Qg1 Rb5 Qh2 Nb6 Qhh5 Bb3 Re5 Be6 Qhg6 Nd5 Qc1 Bb3 Qb2 Ned6 Re2 Ne4 Qa1+
1n4N1/PPP3r1/KR1nbb2/b2B4/p2N1n1p/1Bk2n2/b2qPN1R/1n2Q3 w - - 0 1 illegal: No proof kernel
q3b3/NrqnKR1B/4q2k/P5R1/rN1R4/1pppPB1b/Pn5P/r5Q1 w - - 0 1 legal: proof: b4 d5 g4 h5 d4 hxg4 c4 a5 bxa5 e6 Bb2 Bc5 e4 dxc4 d5 Be3 fxe3 e5 Bd4 exd4 Kf2 Kf8 Kg3 c5 Kf4 g5+ Ke5 Kg7 d6 f5 d7 b5 Kd6 f4 e5 c3 e6 b4 e7 b3 e8B f3 Bg6 f2 Nd2 c2 Bgd3 c1Q Bg6 d3 Be8 c4 Ke6 g3 Qh5 g4 Bg2 f1B Qe5+ Nf6 Qc5 Rh4 Rb1 Ne4 Qe5+ Kh6 Bf7 Nf2 Bf3 g2 Nh3 g1R Qg3 Nd1 Bg6 Nb2 Bh7 Ra7 Nf4 Rb7 Ne4 Bh3 Nd6 c3 Nb5 Qc7 Qe1 g3+ Ke7 g2 Nd5 Ra4 Nb4 Rf1 Qd1 g1Q Na7 Qg4 Rg1 Qc2 Rg3 Qg2 Qc1 Rh1 Qg1 Qg6 Rg5 Qgc6 Kf8 Qe6 d8R Bd7 Rf1 Bc6 Rd4 Be8 Bc6 Qgd5 Rf7 Qdd8 Bf3 Nd7+ Kg8 Nf6+ Kf8 Qa8 Qg2 Ra1 Qf1 Qd5 Qg1 Nd7+ Ke7 Qe6#
qkB2q2/1PN5/3npR1Q/rb2nPp1/1PRbp3/q5R1/nP2Nr2/1KB5 w - - 0 1 legal: proof: c4 c5 d4 cxd4 e4 h5 g4 hxg4 e5 b5 e6 Qb6 a3 b4 axb4 Qb5 cxb5 fxe6 Nd2 e5 Nb1 e4 Kd2 Kd8 Kc2 Kc7 h4 a5 f4 g5 h5 d5 h6 a4 h7 e6 f5 d3+ Kd2 a3 Rh2 g3 Qc2+ Bc5 Rh4 g2 Rh2 d4 Qb3 a2 Qa3 Nc6 b6+ Kb8 b7 Bd7 Rh1 Nf6 Qa4 Ne8 Nf3 g1Q Rh6 Nd6 Qd1 Ne5 Rf6 Qg3 Ng1 Ra5 Nc3 Bb5 Nd5 Qh3 Rb1 a1Q Qh5 Qa2 Kd1 d2 Kc2 d1N Ne2 Qha3 Nc7 Nc3 Qh6 Rd8 h8R d3+ Kd2 Bd4 Rhf8 Qa4 Ra1 Q2b3 Ra3 Qa2 Rb3 Q2a3 R8f7 Na2 Kd1 d2 Kc2 d1Q+ Kb1 Qe1 Rg3 Qec3 Rg7 Qc5 Rd7 Ndf7 Rd6 Rd7 Rc6 Qf8 Rc4 Nd6 Bh3 Bf2 Bg4 Bg1 Bh5 Bd4 Be8 Rh7 Bd7 Rh8 Qg6 Rh2 Bc8 Rf2 Qh6 Q4b3 Rc2 Qc4 Rcc3 Qc6 Rc5 Qa6 Rc4 Qa8
Q1q5/prB1R1K1/6P1/NP1k1rN1/1R6/b1ppbq1b/P3PR2/n1nBq3 w - - 0 1 legal: proof: d4 e5 f4 exf4 c4 b6 c5 bxc5 Qb3 cxd4 Qd1 d3 h4 g5 g4 f5 gxf5 g4 Qd2 Bg7 Qd1 Qg5 hxg5 Bf8 Kd2 Kf7 Kc3 c5 b4 d5 f6 Ke6 g6 h5 f7 h4 b5 d2 Qc2 d1Q Qa4 c4 Qa5 d4+ Kb2 h3 Nd2 g3 Rh2 f3 Rh1 c3+ Kb1 g2 Qd8 f2 Ngf3 g1B Ne5 h2 Qe8+ Kd5 Nec4 Qe1 Kc2 Rh5 Kd3 Nc6 Nf3 Bh3 Bg2 f1Q Bf4 Rb8 Rb1 Nh6 Rb4 Be3 Ng5+ Qf3 Bc7 Ng4 Na5 Rb7 Qa8 Be7 Rf1 h1Q f8R Bc5 Re8 Nce5+ Kc2 Qh2 Rf2 Nd3 Re7 Nc1 Bh1 Ne5 Bg2 Nc4 Bh1 Nd2 Bg2 Ncb3 Kd3 Na1 Bh1 Ndb3 Bg2 Be6 Bh3 Qe5 Bg4 Bd6 Bf5 Qh8 Be4+ Kc5 Bd5 Bh3 Bf7 Qc8 Bd5 Qf6 Ke4 Nc1 Bb3 d3 Bd1 Qf7 Re6 Bf8 Ke5 Qf3 Re7 Qb8 Rf4 Qc8 Kf6 Kd5 Kf7 Rh7+ Kg8 Rf7 Rb4 Rf5 Kh8 Bg7+ Kh7 Bgd4 Kh6 Bc5 Kg7 Bd6 Rh4 Ba3 Rc4 Qd2 Rb4 Qe1
K4B2/8/1RP2P2/NPRp2Pn/nB2Qbr1/2Bpbq1n/3r1rkp/1N2n3 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 e4 f5 e5 d6 e6 Bd7 exd7+ Kf7 Bd3 Bh6 Be4 fxe4 Ra3 Bg7 Ra1 Bf8 Ke2 Kf6 b4 Ke5 c4 h5 g4 a5 b6 d5 b7 a4 c5 a3 g5 d3+ Ke3 h3 b5 h2 c6 a2 f3 h4 Qd2 h3 Qe1 Na6 Qd2 Rh4 Qc2 Nc5 Na3 Na4 Qe2 Rg4 Qc2 Nf6 Bd2 Nh5 b8B+ Kf5 Kd4 e3+ f4 e2 Bc3 e1N Rc1 a1R Bd6 Ra2 Qg2 Rd2 Nf3 e6 Rg1 h1N Nc4 h2 Na5 Nf2 Bdb4 Bd6 Rh1 Qc7 d8B Qf7 Be7 Nh3 Bf8 Rf2 Nd2 e5+ Ke3 e4 Kd4 e3 Nb1 e2 Qf3 Rh4 Qe4+ Kg4 f5+ Kg3 f6 Rg4 Rc2 Bf4 Rf1 Be3+ Ke5 Qg6 Kd6 Qf5 Kc7 Qf3 Kb7 Kg2 Ra2 Nc2 Rc1 e1B Ra3 B1d2 Ra1 Re8 Ra2 Re6 Ka8 Ne1 Nb7 Bc5 Qe3 Rg3 Bd4 Nc3 Ra6 Na4 Rb6 Rg4 Na5 Re7 Qf4 Ree2 Qe4 Bf4 Bb2 Bd4 Rc5 Rd2 B2c3 Bde3
4b3/Rn1q1R2/2k2nB1/1rr1p3/P2Qp1K1/1qP2P1p/1BP3BN/3qnnN1 w - - 0 1 illegal: No possible last move
1Brr4/5R2/Kn5p/1RQ5/PPpP1b2/rp2PB1q/2n2N1r/1N1qkn1B w - - 0 1 illegal: No extended proof kernel
kr2B2b/r3q1p1/1p4Q1/1rP1N1rK/6n1/1p3R1n/1B1PP2P/N1R2nqR w - - 0 1 illegal: Other
3bk1N1/4bpP1/1Q4R1/3prP2/qN1R1pPr/N1bK2P1/1q2B3/1B1q1q1n w - - 0 1 illegal: Other
b1bQ1B2/3Pr2R/1NkP1n1p/4p3/2b4q/2rP1KPN/1R1q2pN/q1qB4 w - - 0 1 illegal: No proof kernel
4Rr2/2n3b1/3b1R2/Q2pn2P/1Nb1p2N/1np1n1BP/1BPP3q/1kNK1b2 w - - 0 1 legal: proof: e4 h5 a4 f5 Be2 fxe4 Bg4 b5 axb5 hxg4 b4 a5 h4 axb4 Nf3 Ra3 Ng1 Rh3 gxh3 Ba6 Ra3 Bb7 Ra1 Bc8 Ra2 e3 f4 c5 h5 g5 f5 d5 f6 Kd7 b6 Kc6 b7 Kb5 f7 e5 Ra1 c4 Ra4 e2 Ra7 b3 Nf3 Kb4 Nd4 e4 Ra3 b2 Ra1 c3 Nb5 g3 N5a3 g2 Ra2 g1B Rh2 g4 Ra1 g3 Ra2 g2 Nb5 Bgc5 Nd6 g1N Rg2 Qc7 Ne8 Qh2 Rg5 Nh6 Rg6 Na6 b8B Ng4 Bg3 Bg7 f8N Ne5 Nc7 Bd6 Na3 b1B Rf6 Rg8 Ng6 Rf8 Ra1 Ba2 Nab5 Bg4 Nh4 Bc4 Ra5 Bf3 Ra2 Bg2 Nd4 Bf1 Rb2+ Ka3 Rb8+ Ka2 Re8 Ka1 Nb3+ Ka2 Nb5 Nc7 N5d4 Bg2 Bb2 Ngf3+ Kf2 e1N Nc6 Nd4 Qe2 Ba6 Qb5 Kb1 Nc1 Nb3 Ke2 Bf1+ Kd1 Ng2 Qa5 Bac4 Nb4 Ne3+
1B1B1b1R/bb4q1/n3P1PP/pNpRr3/2NN4/QnpP4/3n1K2/nk3b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 e4 Nh3 a5 Rg1 g5 Rh1 g3 Bg2 g4 Bf3 exf3 Ng1 Rh5 Na3 Rg5 fxg5 Ra6 Nb1 Rh6 Kf1 Rh5 Ke1 Rh8 b4 Kd7 e4 Kd6 h4 Ke5 h5 Kd4 g6 Kd3 e5 f5 b6 f2+ Kf1 c3 b5 f4 b7 Qf6 h6 Ne7 b6 Na6 b8N Qg7 b7 Nc6 Nh3 Nd4 Rg1 Nc2 Nd7 c6 b8B Bb7 Ra3 Na1 Qb3 Rh7 Kg2 f1N Ng5 Rh8 Qb4 Kc2 d3 Nd2 Nf3 Ndb3 Nb6 Rg8 Kf1 g2+ Kf2 Rh8 Rh1 g1N Rh5 Rh7 Nc4 g3+ Ke1 g2 Kf2 Rh8 Ra4 Rh7 Qa3 Rh8 Rb4 Rh7 Ng5 Nf3 Ne6 Nfd2 Rb5 f3 Nd4+ Kd1 Rd5 Rh8 Rf5 g1B+ Kg3 f2 e6 f1B Rd8 Rg8 Rfd5 Rh8 Qa2 Be3 Nba3 Bg1 Nab5 Rh7 Nf3 Ba7 Nfd4 c5 Qa3 Rh8 Kf2 Rg8 Nf3 Kc2 Nfd4+ Kb1 Rc8 Qe5 Rcd8 Rg7 Rc8 Rd7 Re8 Qg7 Rd8 Nf3 Bg5 Rf7 Re8 Rf5 Bf6 Re5 Bd8 Be7 Rf8 Nfd2 Rh8 Bf8
K4Q2/P1P1b3/2p2Rb1/1NPbB2R/2B4b/4qpPk/npbb2N1/2B3qr w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 f5 d5 fxe4 d6 b5 Bd3 c6 Be2 Ra7 Bf1 Rc7 dxc7 Ba6 Be3 Bb7 Bc1 Bc8 f4 g5 f5 Bg7 Qf3 Bf8 Qg4 Na6 Qf4 gxf4 g3 Nc5 h3 Nd3+ Kd2 Ne5 Ke1 Ng4 hxg4 Bg7 Bh3 Bh6 Bf1 Bf8 Kf2 Kf7 c4 Kf6 a4 Kg5 a5 e5 a6 h5 f6 d5 f7 h4 c5 b3 a7 d4 Ra4 e3+ Kf3 d3 Ke4 h3 Nd2 f3 Ra1 e2 Ba3 e1B Bc1 h2 Ba3 b4 Rd1 Ne7 Ra1 Be6 Rd1 Qe8 Bb2 Nd5 Nc4 d2 Ne3 Nc3+ Kd3 Na2 Bc1 e4+ Kd4 Rh6 Ng2 e3 Bc4 e2 Ke5 Bf2 Re1 Be3 Rd1 e1B Ne2 b2 Nc3 b1B Nb5 B1f2 Rde1 d1B Re2 b3 Ree1 Bg7+ Kd6 b2 f8B Bf6 Bg7 Bd5 Re2 Qe5+ Kd7 Be1 Kc8 Be7 Kb8 B1d2 Ka8 Bh7 Ree1 Bdc2 Re2 Qc3 Bh8 Bf4 Re6 Qe3 Bc3 Be5 Rd6 B5f6 Be5 Kg6 g5 Kf5 g6 Kg4 g7 Bhg6 g8Q Rh8 Rd1 h1Q Qf8 Qh2 Rh1 Qhg1 Rh5 Rh6 Rf5 Rh1 Rh5 Bh4 Rf6 Kh3
1Rr2BR1/P1pB4/rq1Pb2p/1N2QBrP/5N2/pq1b4/6P1/q2bbk1K w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 g5 b3 gxf4 Qc2 a5 Kd1 e5 Qd3 b5 Ra2 b4 Ra1 e4 Ke1 Nc6 Qf3 Nd4 Ba3 exf3 Bc1 Nb5 axb5 a4 Nh3 a3 Nf2 Ne7 Nh3 Nd5 Ng1 Nb6 Nh3 Ra7 Ng1 Na4 bxa4 Ra8 Kf2 Ke7 h4 Kd6 d4 Kd5 a5 Ke4 d5 f5 b6 c3 b7 b3 b8Q b2 a6 c2 h5 h6 e3 Be6 Rh4 Qd6 Qa7 Qb6 Ne2 Kd3 Kg1 f2+ Kh1 f3 e4 f4 e5 Bb4 d6 Be1 Rg4 Rhc8 Nbc3 b1Q Rg8 Q1b3 Bb2 c1R Nb5 Rc5 Rb1 Kd2 Qb7 Ra7 Qe4 Rd5 Nc1 Kd1 Bd3 f1B Qd4 f2 Bf5+ Bd3 Ne2+ Kd2 Ba1 f3 Nf4 f1B Qc5 f2 Bd4 Bf7 e6 Bfe2 e7 Bd1 e8B Be6 Bg7 Raa8 Bd7 f1Q+ Kh2 Ra7 Bf8 Raa8 Qc3+ Ke3 Qe5+ Kf2 Nc3 Ra5 a7 Ra6 Nb5 Qg1+ Kh3 Kf1 Rb2 Qgd4 Rb1 Qa1 Kh2 Re8 Kh1 Rac8 Rc1 Re7 Rc4 Rg7 Rc6 Qf2 Rb6 Rg5 Rb8 Qb6
qQR5/NPp4B/3bb1rn/3K1nPN/3p2P1/n1B1pp2/2r1PR2/2B2q1k w - - 0 1 legal: proof: g4 b5 f4 h5 a4 g5 fxg5 h4 axb5 Nc6 c3 Nb8 c4 d6 c5 dxc5 d4 cxd4 Qb3 Qd5 Qa3 Qd8 Qg3 hxg3 Kd2 Kd7 Kd3 Kd6 Ke4 a5 h4 f5+ Kd3 Ke5 Kc4 a4 b4 g2 h5 a3 h6 a2 b6 f4 b7 Nc6 b8Q Bd7 h7 Nh6 b5 Rg8 b6 Rg6 Nh3 g1Q Bg2 Qf1 Be4 f3 b7 e6 Bd3 Bd6 Na3 Ne7 Nb5 Nef5 Nf4 Qh8 Rb1 a1N Na7 Nc2 Nh5 Qg8 Bd2 Qf8 Bc3 Na3+ Kb3 Qe8 Rh2 Qd8 Ra1 Qg8 Rf2 Qc8 Ng7 Kf4 h8B Kg3 Nh5+ Kh3 Bg7 e5 Bf8 e4 Bb1 e3 Bc2 Nb5 Kc4 Na3+ Kd5 Qe8 Nc8 Ra6 Na7 Rc6 Be4 Bh2 Bfb4 Bd6 Bb2 Rc2 B4c3 Qg2 Bc1 Kh2 Ra2 Kh1 Ra1 Qf1 Ra2 Nb1 Ra5 Na3 Ra6 Bh2 Rf6 Bd6 Rf8 Bc8 Rg8 Qa4 Bd3 Bd7 Rc8 Qa6 Nc6 Qa8 Na7 Bb5 Be4 Bd7 Rd8 Ng7 Nb5 Re6 Bh7 Rg6 Na7 Ngf5 Rc8 Be6+
2q2nN1/2n2P1n/2pb3p/Qb4RR/pNP2Pp1/2b2P1K/1Rr5/1B1Bq2k w - - 0 1 illegal: No possible last move, all moves rejected
1N5q/2K2RrB/2qpPnP1/rb2pR2/7n/2pBNp2/pP1Q1nPk/4N3 w - - 0 1 illegal: No proof kernel
1R2QB2/NPKb1R1P/2pqrpr1/P2p1Pp1/3q4/1p1BN2q/3Rp3/2k2n2 w - - 0 1 legal: proof: b4 a5 g4 axb4 g5 b5 c3 b3 g6 b2 Nh3 b4 Na3 b3 Ng1 hxg6 Nb1 g5 Bh3 g4 Bg2 Nf6 Bf1 Ng8 d4 e6 d5 Ba3 d6 Bb4 cxb4 Ra7 Bg2 Ra6 Bf1 Ra8 e4 c6 e5 Ba6 Qd2 Be2 Qc2 Na6 Qd1 Nc7 dxc7 Ra5 Bg5 Rxe5 Be3 Ra5 Bc1 Ra8 Kd2 Ke7 Ke3 Kf6 Ke4 g5 c8R g3 h4 g2 f4 d6 a4 e5 b5 Ke6 h5 Qf6 b6 Bg4 h6 Ne7 a5 Nf5 h7 Re8 b7 Ne3 Nd2 b1Q+ Bd3 Nf1 Ngf3 g1Q Rh2 Qh6 Re2 Qh3 Rb8 Qb2 Qc2 Qgg3 Nd4+ Kf6 Qc5 Bd7 Nc4 Re6 Nb5 Kg6 Ra2 f6 f5+ Kh5 Na7 Kg4 Qe3 Qd2 Ba3 Qc3 Rh8 Rg8 Rad2 Rg6 Rb8 Qa1 Re1 Qgh2 Qe2+ Kg3 Ne3 Qb2 Bb1 d5+ Kd3 Kf4 Bf8 Qa1 Bc2 Qd1 Bb1 e4+ Kd4 Q2g3 Kc5 Qgh2 Kb6 Q2g3 Nc4 e3 Bd3 Qa1 Kc7 Qd4 Rc1 Qgh2 Rc3 Q2g3 Qh5 e2 Ne3 Rh6 Qf7 Rg6 Qe8 Kf3+ Kd8 Kf2 Rc4 Ke1 Rb4 Qa1 Re4 Qd4 Re5 Rd6 Re7 Re6 Rf7 Qd6 Nc4 Qe7+ Kc7 Qa3 Ra2 Kd1 Ne3+ Kc1 Rd2 Qd6+
B3k3/1NbbBb1r/4n3/bRKn2bP/4PRPN/3rb2n/1QR2q1P/4r2q w - - 0 1 illegal: Other
2BB1r2/r2N3b/2K1QRq1/r6P/rP2nn1q/1P2Nqk1/RbPr4/n1n3B1 w - - 0 1 legal: proof: g4 c5 e4 h5 d4 cxd4 a3 hxg4 e5 b5 e6 b4 axb4 fxe6 Bf4 e5 Bc1 e4 Kd2 Kf7 h4 Kg6 f4 Kf5 h5 g5 b3 e5 Na3 a5 Be2 d5 Bd3 g3 Ba6 e3+ Kd3 g4 Qe1 g2 Nc4 g3 Rb1 Kg4 f5 a4 f6 a3 f7 e4+ Ke2 a2 Rb2 a1N Rh2 d3+ Kd1 d2 Ke2 d1R Na5 d4 Rh3 Nf6 Qc3 Nc6 Ra2 Rd2+ Ke1 d3 Nf3 g1N Qb2 e2 Bb7 g2 Kf2 Ne7 Ke3 Bf5 Qa3 Ned5+ Kd4 e1R Ng5 e3 Nc4 e2 Ne6 Ne4 Rh2 Ra4 Qb2 Qh4 Ba8 Nf4 Qa3 Bh7 Bb7 Kg3 Ne3 Bg7+ Kc4 Rf8 Kb5 Bb2 Bc8 Rf1 Nc5 e1R Nd7 Nge2 Kc6 g1Q Rf2 Qg2 Bb7 Rfa8 f8B R8a7 Bc8 Qf3 Bg7 Qfg4 Bf6 Qg6 Ng2 Bc3 Bb2 Nc1 Ne3 Be5 Bd4 Ree2 Bb6 Bb2 Bd8 Nc5 Nc4 Re5 Ne3 Ne4 Bb6 Rea5 Bd4 Ne6 Rf4 Rff2 Bd8 Rf3 Rf8 Rff5 Rf6 Nf4 Rd6 Rf8 Rf6 Rf2 Bc5 d2 Bd4 d1Q B4b6 Be5 Qb2 Qdg4 Qc3 Qgh3 Qc4 Bb2 Qe6 Rd2 Ng4 Qf1 Bg1 Qg2 Ne3 Qf3
1R1nNbB1/1qB3P1/n2b3r/Q3Pb1P/nq4N1/Nb1RPrq1/k7/b1n4K w - - 0 1 illegal: No proof kernel
BnRqB2q/P1n1Bq2/k2P4/2K2NN1/2b3q1/6nr/1Qrb1PRP/1n1b2q1 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 Ke2 Kd7 Ke3 Kc6 d4 Kb5 a4+ Ka6 d5 e5 d6 c5 Nd2 b5 Ba3 g5 Bb2 c3 Qe2 c4 Nh3 c2 Ng1 c1Q Nf3 b4 Ba3 b3 Bc5 b2 Qd3 b1B Ne1 g3 Be2 g2 Bb4 g1Q Qa3 g4 Bf1 g3 Ng2 Bg4 Be2 Rh3 Bd1 c3 Be2+ Bd3 Qb3 c2 Bc3 Bh6+ Nf4 g2+ Bf3 Qb2 Qd5 c1N Ra2 Nf6 Qg8 Ne2 Nc4 Ng3 Qh8 Ne8 Ra3 Qd1 Rg1 Nc7 Bd2 Qb7 Rc3 Qd5 Rc1 Qf7 Qf6 Bh5 Bg4 Bf1 Bd7 Qg4 Be8 Ra7 Qh8 Rb7 Rc3 Rb2 Qg7 Rc2 Qf6 Bg7 Ne6 Bh6+ Ng5 Bd3 Nb2 Bc4 Nd1 Kb7 a6+ Ka7 Rf1 g1Q Qh8 Kb6 a7 Ka6 a8B Qgd7 Nb2 Bd1 a5 Qdf5 Bc1 Q5h7 Qf6 Qh8 Bd2 Qg2 Rg1 Be6 Bb7+ Ka7 Nc4 Bh5 Rb1 Nca6 Rg1 Bf3 Bbc6 Qh1 Rg2 Qd1 Bc1 Bd5 Nd2 Ba2 Ba8 Be6 Rc8 Nc7 Bd7 Bh5 a6 Kb6 a7 Ka6 Nf1 Bc4 Ba3 Ra2 Bb2 Qf3+ Kd2 e3+ Kc3 e2+ Kb4 e1N Nh7 e4 Bdc6 e3 Nd2 e2 Nb3 Bd2+ Kc5 Nc2 Be8 e1Q Nd4 Qg1 Nf5 Na3 Ng5 Nb1 Qg7 Qe4 Bf6 Bd1 Be7 Rc2 Qb2 Qg4
B6b/n2b2N1/bR1QK1nP/B3Pr1r/2B2P2/4Pb1k/q1n2bRN/1n3nn1 w - - 0 1 illegal: No proof kernel
1Rn1Bkrb/B7/2Q1r3/K4nR1/bqqP1q2/nPP2NPq/1N6/2nr1bB1 w - - 0 1 illegal: No proof kernel
q3nk2/P2rRN2/3b1rn1/Rbb1r1BK/2qb2PN/1B2P2q/2qnP2R/3Q4 w - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 h5 d5 h6 dxc4 Nh3 e4 Ng1 e3 fxe3 gxh6 Qc2 h5 Qd1 h4 Kf2 h5 Kf3 b5 g4 c5 a4 f5 d4 c3 a5 c4 a6 f4 d5 c2 a7 b3 d6 b4 Nd2 c3 Ra4 h3 Qe1 b2 Ne4 b1N Ra6 h4 Nd2 h2 Rb6 b3 Bh3 b2 Qf2 Bd7 Nf1 Bb5 Qe1 Nd2+ Kf2 b1Q Ng3 f3 Bf1 h3 Ne4 Qc7 Kg3 f2 Qd1 Nd7 Kf4 Rh7 Kg5 Ne7 Ba3 c1B Qb3 c2 Qd5 Ng6 Qg8 Bb2 Bb4 c1B Rb7 Qbc2 Nf3 Q7c4 Bg2 f1R Qd5 Bd4 Nh4 Nf6 Ba5 Bc5 Bd8 Bb2 Qd3 Bbd4 d7+ Kf7 Nd6+ Kg7 Qb3 Ne8 Bd5 Rf6 Nf7 Bfd6 Ra1 h1Q Ra5 h2 Be6 Qa2 Qd1 Kf8 Rc7 Rg7 Kh5 Qac2 Rb7 Qg2 Bd5 h1Q Be6 Rf2 Bg5 Rf6 d8R Qhh3 Re7 Rb8 Rdd7 Qa8 Rc7 Rb6 Rc6 Rf5 Bd5 Re5 Rcc7 Qb4 Bb3 Qbc4 Rc6 Bb8 Rf6 Bbd6 Rf2 Ra6 Nh8+ Rf7 Rh2 Rf6 Nf7 Rc6 Rf2 Rc7 Rh2 Rd7
5B1q/P2P1bqQ/nBkr2rn/1qP3r1/N3Rb1n/1NP2r2/B1b1R3/4nK2 w - - 0 1 illegal: No proof kernel
1Bq2n2/r1Prb3/2n1K2b/rPBNR3/2P1RbB1/n1rk3P/3Nnb2/3b3Q w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 a4 bxa4 g4 hxg4 Bh3 f5 Bf1 fxe4 Kd2 Kf7 Ke3 Ke6 Kf4 a5 c4 d5 b4 g5+ Kg3 Kf5 f4 e5 b5 d4 c6 d3 c7 d2 Na3 e3 Qc2+ e4 Qa2 d1R Nb1 a3 Bh3 a4 Ne2 Be7 Qb2 a2 Qb4 a3 Re1 Nd7 Qa5 Nf8 Qa4 Ra7 Qc2 Rd7 Nec3 e2 Bf1 Rh3+ Kf2 g3+ Ke3 g2+ Kf2 g1B+ Kg2 g4 Qd1 g3 Qd6 e3 Kf3 Bf2 Rd1 e1B Qb6 e2 Qb7 Bd2 Nd5 e1B Be2 Bfe3 Qc6 B1f2 Re1 Bb7 Bb2 Qc8 Bd4 Bc1 Bd1 Bed2 Re4 g2+ Ke2 Bde3 Kd3 g1N Nd2 Ne2 Bb6 Rg3 h3 Rf3 Rb1 a1R Bc5 Ra5 Ba7 a2 Bb8 Bb4 Re6 Ne7 Re4 Ba8 Qb7 Nc6 Rb2 Be7 Re5+ Kg6 f5+ Kg5 Ke4 Bf4 Rc2 Rc3 f6+ Kg6 f7 Bh6 Nb1 Bcf4 Nd2 Ng1 Bg4 Ne2 Nb6 Kf6 Rf5+ Ke6 Nd5 Kd6 Re5 Kc5 Kf5 Kd4 Re4+ Kd3 Rb2 Rd1 Rb1 a1N Rc1 Rh1 Re1 Nc2 Re5 Na3 Re4 Ng6 f8B Ra7 Ke6 Rf1 Ra1 Rb1 Ra2 Rb4 Ra1 Rba4 Re1 R4a5 Re5 Bf6 Bc5 Be7 Nb6 Nb4 Qh1 Bf3 Re4 Nc6 Nd5 Nf8+ Kf7 Nc1 Re5 Bd1 R1e4 Nh7 Ke6 Ne2 Be3 Rb7 Bd4 Rba7 Bc5 Nf8+
3nq2R/P3bbBq/q4N2/kN1PBBRP/1q3Q2/1K3brr/1n2b1P1/2q4q w - - 0 1 illegal: No proof kernel
2q3qK/3nkBN1/2Rrn2N/1Q3PnN/bPrb1nr1/2R1bP2/1P5p/n1B5 w - - 0 1 illegal: Other
r1B1N1n1/nKqN2rR/1b1q2PR/2b3rp/Q3P1kn/2B5/PnPR4/1n1b4 w - - 0 1 illegal: No proof kernel
nb4b1/1nbr4/4p1nr/k1PbNRN1/1q3N2/1R4B1/3qP1PP/BrQK2b1 w - - 0 1 illegal: No proof kernel forced: bxLB
1B1KNqb1/n2NBq1p/3Br1q1/1q1Q1r2/3n1q1P/P3bRPn/1k2bP2/5R2 w - - 0 1 legal: proof: c4 f5 b4 a5 h4 axb4 e4 fxe4 g3 g5 Bh3 d5 cxd5 g4 Kf1 gxh3 Ke2 Bh6 Ke1 Bf8 d4 Kd7 Ke2 Kd6 Ke3 e5 a3 b5 Qd3 c5 Qc4 h2 Qd3 c4 Ra2 b3 Nc3 b4 Nd1 c3 Qc4 b2 Qd3 b1Q Rb2 c2 Qe2 b3 Qf3 Ne7 Nh3 Ra6 Qh5 Bg4 Bd2 c1Q Qg5 Nec6 Qh5 Na7 Rg1 h1B Nf4 Nbc6 Ne6 Bh6+ Qg5 Be2 Re1 Qf8 Rc2 b2 Nc5 Qa2 Nd7 b1Q Rg1 Qb5 Rf1 Rg8 Rc5 Rg7 Nc3 Rf7 Rc4 Rf5 Rb4 Qcc2 Rb3 Bhf3 Bc1 Bh5 Bd2 Bf7 Be1 Bg8 Bd2 Kc7 d6+ Kb7 d5 Nd4 Bc1 Rb6 Bb2 Ka6 Bc1 Ka5 Bd2 Qb4 Nb5 Ka4 Nc7 Qb5 Ne8 Qcc6 Rd3 Qcc4 Bc3 Kb3 Be1+ Kb2 Bb4 Ne6 Rc3 Nf4 Bc5 Nh3 Bb4 Nc8 Bc5 Rc6 Ba7 Qca4 Bb8 Na7 Qf4 Bc4 Ndf6 Qaa6 d7 Bd3 d6 Qaf7 d8B Bg5 d7 Bc4 Bdc7 Qab6+ Kd2 e3+ Kd1 e4 d8B e2+ Kd2 e1N Nd7 Rg6 Rf3 Nc2 Be7 Qbe6 Bcd6 e3+ Kd1 Rh6 Qe4 Nd4 Qd5 e2+ Ke1 Bf6 Kd2 Bg5+ Bf4 Qef6 Ke3 Qfc6 Ke4 e1Q+ Re3 Qd2 Rf3 Be2 Bfc7 Rff6 Ke5 Qcc2 Bcd6 Rh5 Bb4 Qcg6 Bbc5 Ne6 Kd6 Nd4+ Kc7 Re6 Bb4 Bf4+ Kd8 Rf5 B4d6 Qe3 Qc6 Qee5 Qc5 Be3 Qd5 Qf4
1RK3b1/B3pq1P/rq1P2P1/6b1/1n2B2n/q2n1QrR/4P2q/bN1Nk1qN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 c4 gxf4 axb5 d5 g5 dxc4 Qb3 Qd5 Qh3 Qd8 Qg4 hxg4 Kf2 Kd7 h4 Ke6 b4 Kf5 d4 Ke4 g6 f5 h5 a5 h6 c5 b6 f3 Kg3 f2 d5 a4 b5 a3 b7 a2 d6 c3 b6 c2 Rh3 f4+ Kh4 g3 Kg5 f3 Bg2 f1Q Rh2 c4 Na3 c3 Nb1 Qf2 Rh5 Be6 Rh2 Ra6 Bh3 g2 Be3 Nc6 b8Q c1Q b7 c2 Qa8 Qa3 b8N c1N Ba7 Qdb6 Nd7 Ke3 Bf5 Nb4 Ne5 Ncd3 Be4 Bb3 Nh3 g1Q+ Kf5 Bf7 Nc3 Kd2 Nb1+ Ke1 Ng4 Qfg3 Qd5 f2 Ne3 f1Q+ Nf2 Rh7 Rh4 Q3h2 Nd1 Bg7 Qa8 Bf6 Rh3 Bg5 Qf8 Bb3 Qf6 Rf7 h7 Rf8 Qf7 Ra8 Qd5 Nh6+ Ke6 Nf5 Kd7 Nh4 Nh1 Qf7 Qf5 Rc8 Qf3 Rc7+ Kd8 Rc3+ Kd7 Bc4 Kc8 Rb3 Nbc3 Bd5 Rb1 a1B Rb2 Qff4 Nb1 Bg8 Rc2 Qf6 Rc7 Qg7 Rb7 Qf7 Rb8 Nb2 Qf6 Rg3 Qf3 N2d3
1k2n1Bn/3Pr1bn/3PRN1q/1qnbN2R/3P2Pr/1N3Kp1/3b1Q1B/q2n4 w - - 0 1 illegal: Other
4r1n1/1n1b1P2/r3p2P/4bQB1/P1b1bPRb/k1qN1R2/b3rB2/1bN2B1K w - - 0 1 illegal: No proof kernel
1n1b2k1/1b1q4/2b5/3qBq1r/rNP1P1N1/1R1rK3/BR1pPQP1/q1n2N1n w - - 0 1 illegal: No proof kernel forced: bxLB
1k1n3r/5RP1/4r1bR/2PQn1B1/2Rq1r2/1K2np1q/b1NP1Pr1/1B2N1bq w - - 0 1 illegal: No possible last move
2k1BKR1/1bq1p1N1/2PbPPR1/r4Nq1/n1P2qBn/RrrQ4/q7/5nb1 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 f5 g5 c5 dxc5 f4 g6 hxg6 Bb2 g5 Bf6 g4 Bh4 Qb6 Bg3 fxg3 Qd3 Qc7 Qd1 Qd8 Kd2 d5 Kd3 Kd7 Kd4 g5 Ke5 b5 a4 b3 e4 b4 h4 g2 c4 b2 f4 b3 f5 d4 a5 g3 h5 d3 a6 d2 a7 g4 h6 Bb7 h7 Nh6 f6 Qc7+ Kd4 Na6 c6+ Kc8 Kd5 Nc5 e5 Na4 Ke6 Nf5 Kf7 Bh6 e6 Bf4 Na3 b1Q Nc2 b2 Nf3 g1B Nh4 g2 Nd4 g3 Be2 Bd6 Ra3 Qa2 Bg4 b1R Qf1 d1Q Qd3 Ne3 Nhf5 Qdd2 Rh6 Rb3 Ng7 Nf1 Ndf5 Qf4 Rg6 Rg8 h8R Rc3 Rh7 Rb8 a8B Rh8 Rh2 Rh5 Kf8 Rg5 Nh6 Ra5 Rh4 Bb6 Nhf5 g1Q Rh1 g2 Rh8 Qc5 Rg8 g1N Qd1 Nf3 Qc2 Ba6 Qd3 Nh4 Bb7+ Kd8 Bc8 Bb7 Ng3 Qcg5 Bd7 Bg1 Be8 Kc8 N3f5 Ba8 Qf3 Rbb3 Qd3 Bb7
5RQr/3bbBpP/3BK1N1/qNP3R1/3bNPn1/2bP4/2b2n1r/1nn2n1k w - - 0 1 illegal: No proof kernel
2bbr2b/4bQ1b/RqB2rN1/2R1nKNn/p1PR1nr1/5nk1/2P1P1P1/B7 w - - 0 1 illegal: No proof kernel forced: bxLB
Q3qr1R/n1nR1rPK/3P4/2n1b2N/3rb2P/Pn3b2/pNnNB2k/4Bb2 w - - 0 1 illegal: No proof kernel
2b3kn/2q1r1Pp/R2QN3/R2bn1bb/7q/B1PNPBb1/PbK5/n1R2r2 w - - 0 1 illegal: No proof kernel
NRnn1N2/bnPP2Kp/N5q1/1k1rP2B/8/3rnb2/1rQr2PB/4r1bR w - - 0 1 illegal: No proof kernel
2n3r1/P2Bq1rB/N7/b1Bq2q1/1p1RP2q/1b2Nk2/1b1P1q1P/nQK2Rq1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 e4 Kd7 a4 Ke6 a5 g5 a6 f5 a7 b5 Qb3 c5 Kd1 g3 Qe3 c3 Ne2 c4 Ra6+ Nc6 Kc2 g2 Qg1 b3+ Kd1 b2 Rb6 c2+ Ke1 c3 Qf2 g1Q Qf4 g4 Qf3 g3 Qg4 g2 Qg5 f4 Na3 b1Q Qg7 f3 Qg5 Qd5 Qh5 Rh7 Qe8+ Ne7 Qh5 Rg7 Qh8 Qb4 Ng3 f2+ Ke2 Rb8 Bb2 c1Q Rb7 c2 Nc4 Na5 Nb6 Nb3 Na4 Na1 Bd4 Qe1+ Kd3 c1B Rd7 Bb2 Nf5 Bc3 Ne3 Bb7 Be2 Nc8 Bh5 Qe7 Bg6 b4 Qh5 f1Q+ Qe2 Qgf2 Bh7 Q1g1 Qf1 Qfh4 Rd8 Qef2 Qd1 Bc6 Qb1 Be8 Rd7 Bh5 Rd8 Bd1 Rd7 Bb3 Nc5+ Kf7 Na6 Ra8 Bg8+ Kg6 e6 Kg5 Bh7 Kf4 Rd8 Kf3 Rd6 Qc1 Rf1 g1Q Rd7 Qeg5 e7 Qe1 e8B Be7 Rd6 Bd8 Bb5 Ba5 Bd7 Qe6 Bb6 Qee5 Rd4 Qd5 Bc5 Qe7 Bg6 Qgg5 Bgf5 Nb6 Bg6 Rag8 Bh7 Nc8 Rh1 Qfg2 Rg1 Qef2 Rf1 Ba2 Ng4 Qg1 Ne3 Nb3 Kc2 Na1+ Kd1 Bb3+ Kc1 Bb2+
3b1q2/PN4qk/2q1P1R1/P3bbQ1/1pnNR3/B1Pqr3/3qq1K1/nr3N1B w - - 0 1 illegal: No possible last move, all moves rejected
7q/1n1b4/q3RB2/N2b2KQ/bP1rBNR1/b4Pq1/1kPPR2p/1qn1r2q w - - 0 1 illegal: No proof kernel
8/b1k5/2N1q1BR/1b2qR1P/Pn2R1Pb/1rpqNPB1/r6b/2qn1qQK w - - 0 1 illegal: No proof kernel
5q2/k2B3r/3q2n1/N1nrnbPP/2P1RBr1/1PRp3B/2n3rN/n3b1QK w - - 0 1 illegal: No proof kernel
1b3n1R/6b1/nN2nB2/1RPB3q/3p2qP/1r1b1bP1/N1KP1brQ/k3N1n1 w - - 0 1 illegal: No proof kernel
1RbB2n1/1Rb2b1P/b4PqB/2k1r1rB/Pqq1qK2/6Np/1N3PQ1/1n1q4 w - - 0 1 illegal: No possible last move, all moves rejected
2q1q3/B2R2Pb/1q3P2/bq2r1rR/1pnPQ1Bb/3b1Nn1/qP4B1/3k2KN w - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 g5 c5 gxh4 Qa4 a6 Qxa6 d6 Qa5 dxc5 Qa7 c4 f4 Kd7 Kf2 Kc6 a4 Kd5 d4 h5 g4 c5 a5 b5 f5 e5 g5 h3 g6 h4 f6 h2 a6 e3+ Kg2 Ke4 g7 h3+ Kg3 e2 Kf2 Kd3 Nc3 Kc2 Rb1 e1Q+ Kf3 e4+ Kf4 e3 Kf3 e2 Nd1 c3 Ra1 c4 Qb7 Nc6 a7 Nge7 Bf4 Ne5+ Ke3 Bf5 Ra3 Rh5 Qd7 Qb6 Ra4 Bd3 Bg5 Nf5+ Kf4 Ng3 Ke3 Bb4 Ra2 Ba5 Qf7 b4 Bh6 Rg5 Qd7 Re8 a8B Kc1 Qc7 c2 Bb7 c3 Qd8 Nc4+ Kf3 Re5 Qe8 Kd2 Qe6 c1Q Qe8 c2 Bg2 Qb1 Nf2 c1Q Bc8 Qc3 Ra3 Qa2 Bg4 Qf1 Qc6 e1B Qe4 Qc2 Rc3 Qca4 Ra3 Qe8 Rc3 Ne3 Rc7 Nc4 Rd7 Kc1 Kf4 Qe2 Nf3 Qc2 Rg1 h1Q Rf1 Qg1 Nh1 h2 Rf2 Qf1 Rd2 Na3 Ke3 Qcc8 Rc2+ Kd1 Rc5 Bc2 Rcd5 Qfb5 Rc5 Bd3 Rcd5 Rh5 Bf4 Reg5 Bb8 Nc4+ Kf4 Re5 Ba7 Rhg5 Rc5 Nf1 Rcd5 Bh4 Rc5 Ng3 Rcd5 Nd2 Ke3 Nc4+ Kf2 Nf1+ Ng3 h1B Rc5 Be2 Kg1 Bd3 B2h3 Bg2 Nh1 Ng3 Rcd5 Bgf1 Bg2 Bb1 Qe3 Bh7 Qe4 Re7 Re5 Bd3 Rc5 Rg6 Rg5 Re5 Rh5 Rgg5
5K2/1kbP4/1pn2bP1/3NP3/1PbQqN1N/rBbR3r/n1rrb3/B2R2q1 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 cxd5 Na6 Ra4 Nb4 a6 Nxa6 Ra5 Nb4 Ra1 Na2 Kf2 Kd7 Kf3 a5 Ke4 h5 Ke5 f5 e4 c5 d4 Kc7 b4 h3 g4 b6 g5 h4 d6+ Kb7 g6 a4 d7 f3 Ke6 f4 Kf7 a3 d5 h2 e5 c4 d6 f2 Bh3 f1B Qe1 f3 Bf5 h3 Qd1 f2 Bd3 c3 Bc4 c2 Bb3 Ne7 Qg4 Be2 Bd5+ Nc6 Bh6 f1R+ Qf3 c1B Bc4 Rd1 Bd2 Qg5 Bc3 Rd2 Ke8 Qf4 Bd4 Qe4 Qb3 Be7+ Kf7 Bd8 Nc3 Bc7 Nf3 Re8 Re1 h1Q Nd5 h2 Nh4 Qg1 Rd1 h1R Qb2 Rh3 Bb3 Rf8+ Kg7 Rf2 Kg8 Rc2 Rd3 Bg5 Rad1 Bf6 Kf8 Rg2 Rf3 Bc4 Rfd3 Rgd2 d8N+ Kb8 d7 B8a6 Ne6 Kb7+ Kf7 Ra7 Kf8 Bab5 Rc3 Be2 Nef4 Bbc4 Qa1 Nc1 Qb1 a2 Qb2 a1B Rd3 Na2 Qc3 Ba6 Qc5 Bc4 Bc3 Bb2 Qe3 Ra3 Qd4 Bc1 Ba1 Bb2 Kf7 Bc3 Kg8 Bh5 Kf8 Be2
1nr1B3/1P1bbr2/2QP1b1r/2r1B1N1/2p3R1/2R1rbqN/2nP3P/q2k1NK1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 b4 Kd6 e4 Ke5 b5 Kd4 d6 f5 e5 a5 b6 c5 e6 g5 b7 g3+ Kg2 c4 e7 a3 e8N a2 Qg4 a4 Qh3 g4 Ng7 a3 Nc3 Be7 Nh5 Nf6 Ne4 Qg8 Nf2 Rh6 Rb1 a1B Qh4 a2 Rb2 Bd7 Rb1 Nd5 Qh3 Nb4 Nf6 Nc2 Bd3 f3+ Kf1 f4 Nd1 f2 Kg2 f1R Ne3 Rf3 Nf1 Re3 Ne8 Ra5 Be2 Rc5 Bf3 Kd3 Bd5 Baf6 Bb2 a1Q Nf3 Ke2 Ng5 f3+ Kg1 g2 Be5 Qg6 Rb4 Kd1 Ng7 Rc8 Kf2 g1R Rb3 Rg3 Qh4 Rh3 Ra3 g3+ Kg1 g2 Qe4 R3h5 Nh3 Qg3 Bf7 Rg5 Qc6 Rf5 Bc3 Rc5 Be8 Qh4 Be5 Nb4 Rc3 Bg5 Ne6 Nc2 Ng3 Qf4 Kf2+ g1R Nf1 Bgf6 Rb3 Rg8 Neg5 Rg7 Rg1 Rf7 Rc3 Qg4 Rg3 Qh4 Kg1 f2+ Kh1 Qg4 Rg1 Qh4 Ng3+ f1B Rg2 Qf4 Kg1 Be2 Nf1 Bf3 Rg4 Qg3+
1rR1q2k/p1b2Kn1/q6b/P3NNR1/3qr3/q1qPQ3/B1P1nP1B/1R3nn1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 c5 Ke1 cxb4 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kf7 Ke3 Kg7 Kf4 h5 Ke5 b5 Ke6 b3 a4 e3 a5 e2 d3 e1Q+ Be3 h4 g5 h3 g6 b2 Qh5 b4 Qd5 b3 Qh5 h2 Ra2 Qc3 Ra3 Nh6 Be2 Nc6 Bg4 Nd4+ Ke5 Ne2+ Ke6 Rb8 Nh3 g1N Qh4 g2 Bb6 Qdd4 Nd2 b1N Nf1 b2 Ng3 Nf5 Bh5 Nd2 Qg4 b1Q Qf3 Qba1 Bc7 Nf1 Rb3 Qa3 Bg4 Rh4 Rb7 Kh8 Nf4 Ng7+ Kf7 e5 Rb1 e4 Be6 e3 Nf5 Rg4 Ba2 Rh4 Nd5 Re4 Bf4 Ne6 Bg3 Bh6 Nde7 Ng7 Bf4 Neg3 Rb5 e2 Qe3 e1Q Nc6 N3e2 Bg3 Qb1 Rd5 Qb5 Ne5 Qa6 Bf4 Nh3 Rg1 h1Q Rc5 Qh2 Rh1 g1B Rc8+ Ne8 Bg3 Qg2 Bf4 Bh2 Bg3 Nhg1 g7+ Kh7 g8R Ng7 Bf4 Qg5 Bg3 Qgd8 Bf4 Ne6 Rg6 Ng7 Rg5 Bg3 Rc7 Kh8 Rc8 Bh4 Bh2 Bg3 Nc6 Bd6 Ne5 Qe8+ Kf6 Nd2 Rc7 Nh3 Rb1 Nf1 Rc4 Nhg1 Rc8 Qd8+ Kg6 Bc7+ Kf7 Qe8+
1b2nB2/R3nb2/b2RP2r/1Pk1N2p/1qq1R3/2P1rK2/2n1P2r/rNQb1B2 w - - 0 1 illegal: No possible last move, all moves rejected
q1Nn2BB/2R3K1/P1n2r1q/1kP2rNb/3p1Pq1/b1r4q/2P2n2/RNQ1r3 w - - 0 1 illegal: No possible last move
3q3n/qR2KP2/n4P1r/BB1Qp3/8/rbr2NP1/1R1nNbP1/1Nbr1kb1 w - - 0 1 illegal: Other
3q2n1/r1bQ1PB1/N1P1b1R1/1q1N1KP1/1PB4r/2npb2k/2b3n1/1Br2nR1 w - - 0 1 illegal: No possible last move
Nr1rR3/Q1prKP1P/1N5n/B1b5/2Pq2rP/2N2B2/2q1R3/1nk1bqqn w - - 0 1 illegal: No proof kernel
2q5/nP1Rnr1n/r3B1P1/N1rrQ2p/N3q2b/1R2bb1K/2Bn1P1P/4k1N1 w - - 0 1 illegal: No proof kernel
2Q1n2N/bP3Bb1/3BnP1r/b2B1r1p/n1R1P2N/n1K2bR1/qP3qr1/4k3 w - - 0 1 illegal: No possible last move
5Bn1/2b1Qnn1/1knqrP1R/1b2nNK1/5Nb1/2P1PRP1/Bpnr4/2N2b2 w - - 0 1 illegal: No proof kernel
2R1qqq1/k3q1p1/b2Nq1P1/5rP1/2qK2BB/P1QBnPN1/1R3q1n/1r1n4 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 g4 axb4 g5 e6 e4 Be7 g6 Bg5 hxg5 f5 Rh6 fxe4 Rh2 Ra3 Rh1 Ra8 Kd2 h5 c4 b5 a3 d5 f3 Kd7 c5 Kc6 Qc2 Kb7 c6+ Ka7 c7 e3+ Kd3 e5 Qh2 h4 Qg3 h3 Bb2 e2 Qf2 e1Q Ne2 e4+ Kc2 h2 Qh4 d3+ Kb3 e3 Qh7 d4 Qh6 d2 Bg2 d1N Qh7 d3 Nd4 d2 Qh5 e2 Qh6 Ne7 Qh5 Nf5 Qh4 Ba6 c8B Qe8 Ra2 Nfe3 Bc1 Rf8 Bgh3 Qf2 Nf5 e1Q Rb2 Nc6 Nc3 Rb8 Bf1 Ne5 Ra2 N5g4 Nd4 Rf5 Rg1 h1Q Nce2 Qh3 Ng3 Nh2 Rc2 Qe7 Ka2 b3+ Ka1 b4 Bd3 b2+ Kb1 Qg4 Rg2 Qge4 Qf4 Q4e6 Qc7+ Rb7 Qc3 Qee2 Be4 Q2c4 Bd3 Qg8 Ne6 Qge8 Nc7 Qcg8 Bd7 Qgf8 Ka2 Rb8 Kb3 b1Q+ Bb2 Qc1 Bc8 Qg8+ Be6 Qe8f8 Ne8 Rb7 Nd6 Rb8 Ka4 b3 Ba1 b2 Bc8 Rf6 Bg4 b1Q Ka5 Qba2 Rb2 Bb5 Kb4 Ba6+ Kc5 Qae6 Kd4 Rf5 Rc2 Rb1 Rb2 Qe1 Rb8 Qb2 Rc8 Qb5 Bb2 Qbe8 Bc1 Nf2 Bb2 d1Q Bc1 Qc2 Bd2 Qg1 Be1 Nfd1 Rf2 Qca2 Rb2 Qab3 Nge4 Qbb5 Bh4 Qf2 Ng3 Qbc4+
4q1r1/1r2P2k/1r1N1n2/1BqRRPr1/2n2KpB/1PR1q2q/1n1n1QP1/3N1b2 w - - 0 1 illegal: No proof kernel
nk1N1rqr/2R2B2/2b5/P1qb1R1q/n1n1rP2/3pbP1Q/N2PpK1B/3R4 w - - 0 1 illegal: No possible last move, all moves rejected
b1q2bq1/2n2N2/qQ2K1k1/PR2P3/N2rpBPP/5b2/2R1B1pn/rn3r1N w - - 0 1 illegal: No possible last move
1qQNb3/1b2r1BB/Pbn1Pr2/5nR1/2r1pPNK/N1k5/P3p1qR/1q2n3 w - - 0 1 illegal: No proof kernel
1q3n1K/1P3Nn1/4NQ2/1BR2B1n/3pp1P1/5br1/2BPP1br/R1rbqkq1 w - - 0 1 legal: proof: b4 g5 a4 b5 f4 gxf4 Bb2 Bh6 Bd4 Bg5 Bf2 Bh4 g4 Bg3 hxg3 bxa4 b5 c5 Bd4 Nc6 Bc3 Nb8 Bb4 cxb4 Kf2 a5 Kf3 h5 Ke4 e5 Kf5 Ke7 c4 Kd6 g5 f3 g4 b3 g6 f2 b6 a3 b7 b2 g7 h4 Nc3 b1Q+ Qc2 a2 Qe4 a4 Bh3 f1N Nd1 a3 Nf2 Ne7+ Kf6 Qe1 g8B Ng3 Kg7 f5 Qg2 f4 Bd5 f3 Nd3 f2 Bg8 f1B Rd1 a1Q Nf3 a2 Bf7 Ra3 Ng5 Nef5+ Kg6 Nh5 Nf4 Nfg7 Qg1 Rg3 Qf2 Bg2 Be6 Qd4 Bd5 a1R Bf3 Rc1 Qf1 Qg1 Bc6 Bf3 Bg2 h3 Nd5 h2 Nf7+ Ke6 c5 d6 Be8 Bd7 Qf2 Ba4 c6 Nd7 c7 Qb8 c8B Rh7 Nb6 d5 Na8 d4 Nc7+ Ke7 Ne6 Nf8+ Kg5 Rh6 Bb5 Rh7 Nc5 Bc2 Bf5 Bb3 Ne6 Ba4 Nh6 Kd6 Nf7+ Kd5 Bd7 Kc4 Bb5+ Kb3 Qf1 Rc6 Ra1 Rc1 Ra3+ Kb2 Rc3 Bd1 Rc5 Qgf2 Rg1 h1B Bh3 Bhg2 Rh1 Nd7 Kg6 Qg1 Bc2 Bd5 Qf6 Bdf3 Nh6 Nf8+ Kf7 Ra1 Kg8 Kc1 Bf5+ Bc2 Nf7 Kd1 Be8 Ba4 Bd7 Rc1 Bb5 Qef1 Bc2+ Ke1 Bf5 Kf2 Bc2 Qe1 Bf5 Bf1 Bg2 Bd1 Bc2 Nf4 Bf5 Rh2 Bc2 Nfh5 Bf5 Bc6 Bge4 Bg2 Kh8 Kf1 Bc2 Bcf3 Rd5 e4 Bb3 Kf2 Rd7 Ra1 Re7 Qef1 Nc7 Bc2 B3a4 Ke1 Re5 Qe3 Ne6 Kf2 Rc5 Qb1 Rc1 Bb3 R1c3 Kf1 Rc2 Qe1 Ra2 Bd1 Bc2 Rc1 Ra1 Qg1
4n2n/RnB2b2/2kB2pq/nr4r1/Pp1Qq2R/1Kb2P1N/1P1BrP1n/3N4 w - - 0 1 illegal: No proof kernel
2rRq3/4r1N1/1N1Pb1nk/2Q3q1/2rBn1rP/n1Pp1Rr1/1KPpR1Bb/8 w - - 0 1 illegal: No proof kernel
nq3B2/1N4b1/2rpP3/p1brq2B/Rb1PB1rr/Q1PP4/1NRnk2K/2r5 w - - 0 1 illegal: Other
R2r1r1K/1Q1NqN2/r1P1pn2/3PPk2/2bB1nn1/PqBp3b/r1B5/r4R2 w - - 0 1 illegal: No proof kernel
2B1k2b/1Nb5/PP4Kb/N2RB3/nPQn1BRq/2pr2b1/P4qnp/1b3r2 w - - 0 1 illegal: Other
3nn3/1BN1KP2/PPn4B/2R2r2/Qp1k2qN/2b3bB/np1n1R1P/3bq1r1 w - - 0 1 illegal: No proof kernel
1r1qb1n1/kr1P4/Bp1PPB1N/5r1P/1nR1R1R1/5QNr/p6q/b2n1Kr1 w - - 0 1 illegal: No proof kernel
8/7k/3qn1n1/2NpB1rP/Bp2q3/1KbPrrPb/PQ1bRq1N/2RqR3 w - - 0 1 illegal: No possible last move, all moves rejected
b6n/B4NQq/qR3p2/P1KRn1R1/q2N3P/k3rPP1/pn1b4/r1n3bB w - - 0 1 illegal: No proof kernel
rBBn2qR/4bn2/n1R1P1P1/4qNp1/Rbq1P2N/pk2r1P1/8/2K1Q1qb w - - 0 1 illegal: Other
n2r3q/5rRN/1bp1Pb1R/4P2B/7P/1q2Bnp1/1NP1Bq1q/Kr1Q2bk w - - 0 1 illegal: No possible last move, all moves rejected
2qb2N1/rn2rP2/B1KpP2q/pnP3B1/rb2R1R1/kNRQ3b/4P3/1n3b2 w - - 0 1 illegal: No proof kernel
r2K2Q1/1k2nP1P/2RR2P1/1q1b2rN/1n6/5r1b/1B2ppRP/qqbbN2B w - - 0 1 illegal: Other
2Rr1Bnq/b1q2p2/3N4/bP3PbP/2N3n1/1Ppr2Q1/2n1B1q1/KR3Bnk w - - 0 1 legal: proof: d4 h5 a4 e5 g4 exd4 Nf3 b5 Ng1 Bb7 b3 Bd5 b4 Bb3 cxb3 hxg4 Bh3 bxa4 Bg2 Bc5 Bf1 Bf8 Kd2 Ke7 Kc2 Ke6 Kb2 Ke5 h4 Ke4 f4 c5 e3 a5 b5 g5 f5 d5 h5 c4 Ra3 g3 Ra1 g2 Be2 g4 Ra2 g3 Ka1 a3 Rb2 a4 Ra2 d3 Rd2 d4 Nf3 g1B Qf1 a2 Na3 g2 Nb1 Nd7 Kb2 a1N Nh4 a3+ Ka2 Be7 Qd1 Bg5 Qc2 Ne5 Qc3 Nc2 Qa1 Ng4 Bb2 Qc7 Ng6 Rd8 Ne5 Rd6 Rd1 d2 Rc1 d1Q Bf1 d3 Nd2+ Kd5 Kb1 Qe2 Ne4 d2 Ka2 Rd7 Nd6 d1Q Rb1 Qd4 e4+ Kc5 Rh4 Bf2 Bc1 g1N Qc3 Qf3 Bb2 Qg2 Qg3 Be1 Rh3 Ba5 Rh2 Qc3 Be2 Kd4 Bc1 Bd8 Bh6 Bg5 Bf8 Rd8 Ng6 Rh6 e5 Kd5 e6 Qh8 e7 Kd4 Bf3 Ke3 Ne5 Re6 e8B Re7 Qh3 Kf2 Bec6 Red7 Bd1 Kf1 Rh1 Kf2 Rc1 Kf1 Be2+ Kf2 Kb1 a2+ Kb2 a1B+ Kb1 Qg3 Bg2 Bd4 Bgf1 Qg2 Ka2 Ba7 Rb1 Na3 Ka1 c3 Nec4 Re7 Qh2 Re3 Qe5 Rd3 Rh4 N4f6 Re4 Ng4 Qg7 Kg3 Re8 Kh2 Qe5+ Kh1 Qg3 Rd7 Ra8 Rd8 Rc8 Nc2+
R3bB1K/rb1BP3/3Qr1p1/RnP1n2P/1P1Npq1r/q7/2Nq3k/1b2bB2 w - - 0 1 illegal: No proof kernel
3B1q2/1nbP4/2k1r2R/1n1b1nqN/pPp2QPN/5BKn/5P1B/3qRr1b w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 b4 e5 d4 h5 d5 c5 d6 a5 b6 a4 b7 e3 Qe2 h3 Qd2 c3 Qd4 e2 Ra2 h4 Bb2 c4 Na3 h2 Bh3 e4 Nb5 c2 Ba3 c1Q+ Qd1 Ne7 Bg2 h3 Rb2 Nf5 Bf3 Ra6 Nc7 Qcg5 Rb1 Nc6 b8B Na5 Qd2 Kc6 d7 Bd6 Ba7 Qf8 Be3 Nb7 Ne6 Bc7 Qc3 Rh5 Kd2 e1N Ke2 Nc2 Qd3 Ncd4+ Kf1 Nb5 Bb6 Rh7 Qd4 Re7 Be2 e3 Nf4 Re6 Bb2 Ra5 Bd1 e2+ Ke1 Ra8 Nf3 Rb8 Kd2 e1N Nh4 Nd3 Be2 Ra8 Rbe1 Ra6 Kd1 Rd6 Nh5 Nf4 Bf3+ Rd5 Rhf1 h1Q Qd2 h2 Be5 Nh3 Ke2 Qg1 Qf4 h1B Ba5 Bd6 Bd8 Bc7 Bg2 Rb6 Kf3 Rd1 Bd6 Rb1 Re6 Ra1 Rfe1 Rb1 Rh6 Rc1 Re8 Rf1 Re7 Na5 Re3 Bb7 Re1 Ba8 Qe3 Nb7 Bh2+ Kd5 Qc1 Re6 Qf4 Kc6 Rc1 Kb6 Rb1 Rd1 Qe3+ Nc5+ Qe4 Bd5 Ra1 Kc6 Rc1 Nfd6+ Kg3 Ncb7 Qf4 Qf1 Rb1 Qd3+ Bf3 Rf1 Re1 Qd2 Qe5 Qd1 Qf4 Nf5+
2B3Qb/1RnP2r1/2b4B/q3pPRP/1NK1P3/4p1N1/2b2qn1/rr1k1qqN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 c4 h5 Qa4 hxg4 Qa7 d5 cxd5 f4 Qe3 fxe3 Ke2 Kd7 Kd3 Kd6 h4 Ke5 a4 Kf4 f3 c5 d6 e5 h5 g5 a5 b5 a6 g3 a7 c4+ Ke2 b3 d4 b2 d7 g2 d5 g4 d6 b4 Nd2 b1B Bb2 b3 Bd4 b2 Rh3 c3 Ra2 g3 Ra1 c2 Kd3 c1Q+ Ke2 Bg7 Bc5 Qa5 d8N Ne7 d7 Bb7 Nc6 Rh7 Nb4 Ng6 Bf8 Bc2 Rb1 Bh8 Rh1 Nh4 Rh2 Ba4 Kd3 Qe1 Kc4 Bbc6 Be2 Rg7 Nf1 Na6 Bd3 Rg5 Bh6 Nc7 Rh1 Bc2 Be2 Rg8 a8Q Rg7 Qg8 Qf2 Rd1 b1R Rd5 Rf7 Rb5 Rf8 Rb7 Ra8 Bf8 Rg7 Bd3 Kg5 f4+ Kg4 Nh3 Kf3 f5 g1Q Rh2 g2 Ng3 Qfe1 Nf2 Qgf1 Nfh1 g1Q Rg2 Qff2 Nf1 Ra6 Rg5 Ng2 Nfg3 Qa1 Kc5 Qa5+ Bb5 Ra7 Kc4 Ra8 Ba6 Ra7 Nf1 Ke2 Nfg3+ Kd2 Rb6 Kd1 Bc8 Ra8 Rb8 Qb6 Rb7 Raa1 Rg6 Qa5 Rg5 Re7 Bh6 Rf7 Rg4 Rg7 Rg5 Qef1+
3B1n2/b2P1Rb1/1pPK2b1/n1Np2qr/q4Q2/rB1Rb1Pr/3q3P/1RN1k3 w - - 0 1 illegal: No proof kernel
1Nbq1bb1/3PBqp1/1q1B2B1/1K2QRNP/3p1qrP/3r2n1/2P1r1R1/1n1k4 w - - 0 1 illegal: No proof kernel
r1q2RNQ/2PNqnN1/1r3b2/4q2q/1Kbp1P1r/B5nB/pR3PbP/6k1 w - - 0 1 legal: proof: g4 b5 d4 h5 a4 hxg4 d5 bxa4 d6 f5 e3 f4 exf4 cxd6 Ra2 d5 Ra1 d4 Kd2 Kf7 b4 Kg6 c4 Kh5 c5 Kh4 c6 g5 c7 a5 b5 d5 b6 e5 b7 d3 Kc3 d2 Qc2 d1B Ba6 e4 Ne2 Kh3 Be3 Kg2 Bb5 g3 Bc5 g4 Qd2 e3 Bc4 a3 Bb6 a4 Ba5 a2 Qd4 a3 Qc5 Nc6 b8N Bb3 Qa7 Bg7+ Qd4 Nge7 Re1 Ne5 Qc5 Bb7 Bb4 Bf6 Nd4 e2 Na6 Rh4 Nd2 Nf5 Bb5 Nf7 Nb8 Bc4 Ba5 Qc8 Rad1 a1Q+ Kb4 a2 Rf1 e1Q Nd7 Qe7 Ne6 Qe5 Ng7 d4 Rb1 Bf3 Rb2 Bfd5 Re1 Bf3 Re3 Kg1 Bc6 g2 Ne4 Ng3 Bd5 Qh5 Be6 Bg5 Ree2 Kh1 Ka4 g1Q Ne5 Qe1 Qd6 Qef8 Nf6 Ne4 Nge8 g3 Ng8 g2 Bh3 g1R Qf6 Rgg4 Qg7 Bg2 Qh8 Kg1 Ng7 Ng3 Nd7 Qd6 Re8 Qee5 Rd8 Be7 Rf8 Rg6 Nb8 Qdd8 Nd7 Rd6 Ka3 Bf6 Ka4 Ba6 Bb4 Qde7 Ba3 Bc4+ Kb4 Rb6+
qbr1RQ2/1nP2PRB/1Nk1r3/r1B1qp1N/nB3PPp/2b3K1/3q1n1n/8 w - - 0 1 illegal: No possible last move, all moves rejected
r3nq2/n1pbr1P1/NnP3N1/2B3k1/1QP5/2b2BKB/qRPb3p/1q3q1R w - - 0 1 illegal: Other
qn2r2Q/1pprq1B1/n2kNN1K/P3NP2/2R4P/RP2b1r1/B5b1/3bq2r w - - 0 1 legal: proof: g4 d5 e4 h5 c4 hxg4 cxd5 a5 b3 f5 Na3 fxe4 Qc2 a4 Nb1 a3 Qb2 axb2 Ke2 Kd7 Ke3 g5 d4 e5 h4 g3 a4 g2 f4 g4 a5 g3 d6 Nf6 d5 Bh6 Ba6 Re8 Nd2 b1B Bb2 Bc2 Ngf3 g1R Bd4 g2 Bc4 Na6 Bd3 Bd1 Bb1 Rb8 Rh3 Rh1 Ra3 g1R Ba2 Rg3 Bc3 Ng8 Rh2 Ne7 Rf2 Nc6 Rf1 Be2 Rc1 Bd1 Ba1 Ra8 Rc4 Ncb8 Bd4 Re7 Ba1 Ke8 Bd4 Bh3 d7+ Kf7 d6 Ke6 Ba1 Bg2 Bd4 Qc8 d8Q Rd7 Qh8 Bg5 Nb1 Qd8 Nc3 Qg8 Nd5 Qc8 Kd2 e3+ Kd3 e2 Ke3 e4 Bg7 Bh6 Nf6 e1Q+ Kd4 e3 Ke4 e2 f5+ Kf7 Ke5 Be3 Ke4 Rd8 d7 Ke7 Ke5 Re8 d8N Qb4 Ne6 e1Q Ke4 Rd8 Ke5 Rd7 Ke4 Bg1+ Kf4 Kd6 Ne5 Qg8 Neg4 Qc5 Kg5 Be3+ Rf4 Qe8 Kh6 Qa7 Ne5 Qe7 Nd4 Nc6 Ne6 Re8 Nd3 Qa8 Ne5 Rg5 Rb4 Ncb8 Rc4 Rg3+
Q1nbqB2/pr1Np1rP/B2n2bR/3P4/RP2rq2/1N5K/1B2Pqn1/4r1k1 w - - 0 1 legal: proof: c4 b5 g4 d5 a4 dxc4 axb5 h5 g5 h4 g6 fxg6 Qc2 g5 Qd3 g4 Qg3 hxg3 f4 Kf7 h4 Kg6 d4 Kh5 b4 g5 b6 c5 b7 c3 d5 g2 Kf2 c2 Kg3 c4 f5 c3 f6 Bh6 f7 Nf6 f8Q Bf5 Ra2 Ne4+ Kh2 Nd6 Nd2 Nd7 b8B Bg6 Qe8 g3+ Kh3 Nb6 Ra5 Nbc8 Qc6 Qe8 Ba3 c1Q Nc4 c2 Qa6 Qf4 Qb7 c1R Qb6 Re1 Bc7 Rb8 Qd4 Rb7 Nf3 g1R Qb2 g2 Qc2 Bg7 Nb6 Bd4 Nd7 Bb6 Bb8 Bd8 Ra4 Rg8 Nd4 Rg7 Rh2 Rh1 Qb2 g1Q Nb3 Qgf2 Qc1 Rg1 Bb2 Rg4 Rh1 Q4d4 Bc7 Re4 Qc6 Qdf6 Bb6 Q2f4 B6d4 g4+ Kg2 g3 Kh3 g2 Be5 Kh6 h5 Kg5 h6 Kf5 h7 g1N+ Kg2 Kg4 Rh6 Nh3 Bec3 Rc7 Qa8 Rb7 Bd4 Q4g5 Bdc3 Nf4+ Kh2 Ng2 Bd2 Ne3 Bh3+ Kf4 Bdc3 Ng2 Be6 Ke3 Kh3 Kf2 Bf5 Rd4 Bd3 Kg1 Ba6 Re4 Be5 Qf2 Bf6 Rf7 Bg7 Qgf4 Bf8 Rg7
4B2b/1PR1pbkp/7n/2nbNR2/1Q2b3/1brP1P2/rbNn3P/qNBK4 w - - 0 1 illegal: No proof kernel
r3b1bB/P6N/2R2pp1/BPBQ1Pb1/q3r1r1/r6K/nNPn2R1/1k1rr3 w - - 0 1 illegal: No proof kernel
1kq5/3b4/nb1b2rp/1BRPN1b1/3p1Q1P/1R1brKP1/N1Pb3q/1n4NB w - - 0 1 legal: proof: e4 b5 d4 d5 f4 g5 a4 bxa4 fxg5 dxe4 d5 c6 Be3 c5 Bd4 cxd4 Kf2 Kd7 h4 Kc7 b4 e5 b5 a5 g6 f5 g7 e3+ Kf3 f4 g3 h6 Ra2 a3 Bh3 a4 Ra1 e4+ Kg2 a2 Qg4 a3 Qe2 f3+ Kf1 f2 Kg2 f1B+ Kh2 Na6 b6+ Kb8 b7 Bd6 Nd2 Bd7 Qg2 e2 Nc4 e1B Na5 e3 Bg4 e2 Nh3 Qc8 Qf3 Nf6 g8B Ne4 Nb3 Nc3 Qf4 Nb1 Bf3 Ba5 Nc1 e1B Bh7 Rg8 Ng1 Bed2 Bd3 Bb6 Bb5 Bd3 Kg2 Rg6 Be4 Be3 Kf3 Ra7 Qf8 Bg5 Qf4 Nc3 Rb1 a1Q Rb3 Nb1 Na2 Ra8 Rc3 Ra7 Rc4 Qc3 Rc5 Qd2 Rh2 Ra8 Re2 Ra7 Re3 Qh2 Bf5 Ra8 Bh3 Ra7 Bg2 Ra8 Nc1 a2 Bh1 a1B Na2 B3f5 Rb3 Bd3 Rc6 Bc3 Rc5 Ka7 b8N Bd2 Nc6+ Kb7 Ne5 Kb8 Rc7 Ra7 Rc4 Rc7 Ra4 Rc3 Rc4 Bf6 Rc6 Bg5 Rc5 Bc4+ Ke4 Bgd8 Qf5 Re3+ Kf4 Bd3 Qg5 Re4+ Kf3 Bf6 Qg4 Bfg5 Qf4 Re3+
1q3q2/NK3b2/1B3P1q/1qQ3n1/PR2npRP/1p1q1rB1/kN2RP2/1qb1r3 w - - 0 1 illegal: No proof kernel
1nnB4/4n1b1/n2P1NK1/4R2P/qR1rn1pp/PP2k1rB/4br1R/2N2Qr1 w - - 0 1 illegal: No proof kernel
b2n1k1b/2rQ1PN1/2p1p2b/1b2Prn1/1R2b2B/1N1B4/3n1PP1/1RNK1q1n w - - 0 1 illegal: Other
1B2nR2/1n1N1r1P/rbbR2rQ/P2B2Rn/P4k2/4b1p1/1qp1PN1n/1r4K1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 exf4 Na3 d5 Nb1 dxc4 Kf2 Kd7 a4 Kd6 d4 b5 h4 f5 h5 c5 d5 Ke5 d6 g5 d7 f3 h6 b4 h7 b3 Qd2 b2 Rh3 c3 Qe1 g3+ Ke3 c2 Bd2 c1B Ra2 f4+ Kd3 g4 Rh2 g2 Qf2 c4+ Kc3 Bb7 Be3 Nf6 Rh6 Bc5 Nd2 b1R Kc2 c3 Kd3 c2 Qe1 f2 Ra3 f3 Qd1 Rf8 Nb3 Bb6 Rh2 Na6 Rh6 Rf7 Qd2 Qb8 d8R Bc6 Nh3 g1R Nc5 Ne8 Bg2 f1N Nf2 Ng3 Rhd6 Nh5 Bf4+ Kf5 Nd7 Nc5+ Ke3 Ra6 Be5 Kg5 Rc3 Nb7+ Rc5 Kf5 Nh1 f2 Bd5 f1N+ Kf2 Nh2 Qh6 Nc7 Rf8 Ne8 Bf4 Bd2 Re6 Qe5 Rd6 Qb2 Be5 Rgc1 Kg2 Be3 Nf2 Rd1 Bg3 Rd4 Bf4 g3 Be5 Rg4 Bf4 Bc1 Kg1 Rg5 Re6 Rg8 Bb8 Rg6 Rd6 Nhg7 Rc4 Nh5 Rg4 Bd2+ Kg2 Bc1 Rg5+ Kf4 Kg1 Bce3+
1rBB3K/b2N3P/2ppnrNn/4P3/rQ2bB1b/5b1P/P1n1k3/2Rn2Rq w - - 0 1 illegal: No proof kernel
rnRR4/bb1P1B2/P1Rp2nN/2p1b3/q1Kb4/5nQr/P1NPk2r/nB6 w - - 0 1 illegal: Other
Q2b1bN1/2P1B2N/BK1n3r/r4b2/3b1P1P/3BqR2/n1pRnPp1/k2n1r2 w - - 0 1 illegal: No proof kernel
3kb1Nr/bnpb1n1r/3BRP1r/rp2NR2/3P1b1R/n4PP1/K2Q4/1q5B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 Ne2 g5 Ng1 gxh4 a4 h5 d4 e5 Kd2 h3 Kc2 e4 Kb2 b3 g3 h2 a5 h4 f3 h3 a6 e3 a7 e2 f6 e1N Be3 c3+ Kc1 c2 Kb2 c1B+ Kc3 b2 Kb3 Na6 Qd2 Nc5+ Ka3 Bd7 Qc2 Nh6 Nc3 Qb8 Nge2 Kd8 Nd5 Nf7 Bf4 b6 Be5 Bf4 Qd2 Nc2+ Ka2 Na3 Ne7 Be8 Re1 b1B+ Ka1 Bh7 Ka2 Bf5 Nc1 Bfd7 Bg2 Qb7 Re3 Qe4 Ree1 Nb7 Ng8 Bc5 Bd6 Qg6 Nd3 Qe4 Rhg1 h1R Rgf1 Qh7 Re6 h2 Rf2 Rg1 Rfe2 h1R Rf2 Re1 Rf1 Rh5 Rh1 Qg6 Rh2 R5h7 Rh3 Re5 Bh1 Reh5 Rh2 R5h6 Rh4 Rc8 a8R Qe4 Ra4 b5 Rc4 Ra8 Rc2 Bb6 Rc5 Ra5 Rf5 Ba7 Ne5 Qb1#
N1Bk4/r1r3P1/1Kbr2b1/R2QPR2/N1r1P1n1/1P2Bn1q/ppq1b3/2b1B3 w - - 0 1 illegal: No proof kernel
BN1N2Q1/1bnr1np1/3P1P2/nK2Nk2/1bp3R1/1rP2q2/1P1rn1r1/2qR1B2 w - - 0 1 illegal: No proof kernel
2Q1Nr1B/P3PBR1/1Rp1Kn1k/3pPPqb/5r2/n2n1b2/N1bB1q1b/7n w - - 0 1 illegal: No proof kernel
3bqB2/q4Rnr/2n3b1/qk6/2p1bPP1/2P1qNPK/Q1p1q1BN/RNn5 w - - 0 1 illegal: No proof kernel
1k1qN2q/n2QRqBp/P2b3N/1r3B2/P5pP/1b5n/q1P2R2/2qbqKR1 w - - 0 1 illegal: No proof kernel
1b6/2q1K3/p1bQ2q1/n5NR/NPB2P2/P2rPRn1/npn2nRB/1k3nb1 w - - 0 1 illegal: No proof kernel
2K3b1/rP1nr2B/pp1R2nr/r3r1P1/rb4QN/1P6/r1kPb2R/2N1BN2 w - - 0 1 legal: proof: f4 d5 h4 g5 c4 gxh4 a4 dxc4 a5 e5 a6 exf4 Ra4 b6 Ra2 Qd5 Ra1 Qb7 axb7 Bb4 Rh2 Be7 Rh1 Bf8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Kd5 Kb4 e4 h5 g4 c5 e5 f5 e6 h3 g5 c3 e7 c2 Kd6 Kb3 Kc7 c4 e8N c3 Ra5 h4 Ba6 h2 Qf1 h3 Rd5 f3 Na3 f2 Rd3 f4 Nc4 f3 Rd5 Rh4 Qe2 f1R Rc5 f2 Rc6 Re1 Rh6 f1B Ned6 Ne7 Rh5 Ng6 Qe8 Be6 Na3 Bg8 Qd7 Re7 Nf5 Be2 Rh6 Ra4 Bd3 a6 Nc4 Ra7 Kc8 Re5 Qe6 Nd7 Nh4 Bb4 Qg4 Ra2 Ngf3 Raa5 Ne3 Ra4 Rf1 h1R Rf2 Re1 Nf1 h2 Ng1 h1R Rf6 Rh3 Rd6 Rea5 Bf5 Re3 Bd3 Re7 Bf5 Bb5 Rh5 R1e5 Be4 Be2 Bd3 Ka2 b3 Kb1 Bb2 Ra2 Ba1 Kc1 Bf5 Kd1 Be4 c1R Bd3 c2 Bd4 Rb1 Bf2 Rba1 Be1 R2a4 Be4 R1a2 Bd3 Kc1 Rh8 Kb2 Rh6 c1R+ Bc2 Bd3 Ne2 Bdc4 Bd3 Rc3 Be4 Rh3 Nc1 Be2 Bf5 Nh8 Bh7 Ng6 Ng2 Rh1 Rh2 Kc2 Nh4 Ba3 Rf2 Rh3 Rh2 Bb4 Ng2 Rh5 Nh4 Rh6
b1q3N1/1B1b2bN/2Rr1pnP/b2P4/3r3q/1b1pP3/2RBkPrQ/B1K3r1 w - - 0 1 illegal: No proof kernel
RB1rq3/P1R5/2b1p2p/1q1bbP1k/NqB1P3/QnnqN2B/1PK4n/2b5 w - - 0 1 illegal: No proof kernel
3rQ2n/3b1RpK/1P2npb1/Nn1b1RP1/1k3r2/nB2n3/1P1R1bP1/4BN1n w - - 0 1 illegal: Other
Br1q3B/3bN1B1/2N1P2b/3R1p2/2KQ4/2nPP2n/1Prb1kpp/q2qR2n w - - 0 1 illegal: No proof kernel
2KR1nbk/Rnp2Q2/6pN/nr6/1b1q4/1B1qp1rP/q1P2PPr/1RNB4 w - - 0 1 legal: proof: b4 a5 e4 axb4 e5 f5 Bb2 h5 Bd4 f4 Be3 fxe3 Qg4 d6 Qe4 dxe5 Qh4 e4 Qxh5+ Kd7 Qh7 Ke8 Ke2 Kf7 a4 e5 d4 b5 d5 b3 d6 b4 d7 b2 a5 b3 a6 Bb4 a7 Ne7 Ra3 Ng6 Ra4 Nc6 Nh3 Na5 Nd2 b1R Nf4 b2 Ra1 Nf8 Qh5+ Kg8 Qf3 g6 Nd3 Rh3 Rg1 Rg3 Nc4 Kh8 Nd6 Bb7 Qf7 Bd5 Nf5 Bc4 Qe8 Bg8 Qf7 Rb8 a8B Rb5 h3 Rd1 Bd5 b1Q Bb7 Qa2 Bd5 Qf6 d8R Qb6 Rb1 Qd4 Rb3 Rb1 Nc1 Ra1 Rc3 Rb1 Bb3 Ra1 Ke1 e2 Nh6 Qc4 Kd2 e1N Nd3 Nc6 Ba4 Qd4 Ke2 Rb1 Ra3 Rc1 Bb3 Rd1 Ra6 Na5 Ra7 Ra1 Nf4 Nd3 Rh1 Nc5 Nd3 Ncb7 Rg1 Be7 Kd2 Rc1 Be2 Rb1 Bh5 Bb4+ Ke2 Rb2 Ra1 Rb1 Bg4 Rd1 Nc1 Rh1 Rb1 Rh2 Kf1 e3 Bd1 e4 Ke2 Bc5 Kf1 e2+ Ke1 Qda1 Kd2 e3+ Kd3 e1Q Ke4 Qf1 Kd5 Nh7 Ke6 Bb4 Kd7 Qd4+ Kc8 Nf8 Qe7 Qe2 Qf7 Qed3
K1Q3R1/1pbrPBbq/6P1/2p1Bk2/3q4/N1PRqB2/1n1Pprb1/n1N2n2 w - - 0 1 illegal: No proof kernel
nrR1B3/pr1b1n2/3P1q1P/P3bn2/pNpRQ2q/K1PB4/b5r1/NN1k4 w - - 0 1 legal: proof: e4 d5 f4 b5 a4 g5 fxg5 Qd7 a5 Qd8 Qf3 dxe4 Qb3 Bd7 Qa4 Bc8 g4 bxa4 b3 h6 g6 Kd7 g7 Qe8 g5 Ba6 g6 Qd8 Bb2 Bc8 Bf6 Ke8 Bg5 hxg5 Kd1 Kd7 Kc1 Kd6 Kb2 Kd5 d4 e5 h4 c5 h5 f5 c3 f4 b4 g4 b5 e3 b6 Ke4 d5 f3 d6 e2 h6 Kd3 b7 e4 Ra3 g3 Rh4 g2 Rb3 e3 Ka3 Kc2 Nh3 e1Q Rc4 g1R Be2 f2 Re4 f1B Rd4 Qeh4 Ka2 Nd7 b8Q Rg2 Nf2 Qdf6 Qc7 Ne7 g8B Rh7 g7 Nb6 Ng4 Rb8 Qc6 Na8 Bf7 Nf5 g8N Bd7 Ka3 Bg7 Bd3+ Kd1 Be8 e2 Ne7 e1N Nd5 Nf3 Nb4 Ne5 Qe4 Nf7 Ne3+ Kc1 Ned5 Kd1 Nc2 Be2 Ndb4 Bf3 Qc6 Bd5 Na1 Bh8 Rb2 Ba2 Qe4 c4 Re2 Qe6 Re3 Be5 Rg3 Qef6 Rg8 Ng5 Bg6 Rf7 Rc8 Rg7 Be8 Nf7 Rc6 Rb2 Rc8 Rgg2 Na6 R2b6 Nb4 R6b7
3BB3/p4b2/R1p1P3/1q2n1bk/r1NP1q2/1pr1PR2/PNr2nK1/1qbB2Q1 w - - 0 1 legal: proof: f4 h5 b4 e5 fxe5 c6 g4 hxg4 c4 Qe7 c5 Qf6 b5 Qd8 Qa4 cxb5 c6 b4 c7 Ne7 Qb5 Ng8 Qc6 dxc6 Kf2 b5 d4 f5 h4 Kf7 h5 g5 h6 Kg6 h7 f4 Rh5 b3 Ba3 b2 Nh3 f3 Bg2 g3+ Kf1 b4 Kg1 g4 Rf5 f2+ Kf1 b3 Ng1 Qh4 Rh5 Bh6 Nh3 Nf6 Bf3 Ne4 Bg2 Bg5 Bf3 Nd7 Bd6 Rb8 Ba3 Rb4 Kg2 Ra4 Nd2 b1Q Nc4 f1R Nf2 Rc1 Bb4 Rc2 Nd3 Nf2 Be7 Rg8 h8Q Bc1 Kg1 g2 Ndb2 Qg5 Bd8 Qf4 Rf5 Ba6 c8B Rf8 Na5 Bc4 Qh1 Bf7 e6 Ne5 Bd7 Rh8 Nac4 Rh3 Be8 Rg3 Be4 Rf3 Qh2 Rfc3 Qg3 Kh6 Bf3 Kg6 Kh2 g1B+ Kg2 Kh6 Qh2+ Kg6 Qh1 g3 e3 Bh2 Qg1 Kh6 Kf1 Kg6 Bd1 g2+ Ke1 Bg3 Rh5 Bh4 Rf5 Neg4 Ra5 Bg5 Ra6 Kh5 Nd2 Qf5 Ke2 Qb5+ Kf3 Ra3 Ndc4 Ra4 Qe1 g1Q Qf1 Qh2 Qg1 Qd6 Kg2 Qde5 Bc7 Qf4 Nd6 Nd3+ Be2 Bd2 Ndc4 Qe1 Bd8 Ne5 Rd1 Qh4 Rf1 Qe1 Bf3 Qb1 Bd1 Bc1+ Rf2 Bd2 Rf3 Nf2 Qe1 Bc1 Qf1 Kg6 Qg1 Kh5
1kN2RR1/pB4PQ/B1rn1qK1/PP1N4/2Bqp3/q3rbPb/2p1nb2/7n w - - 0 1 illegal: No proof kernel
3r1N2/BQ3R1K/Bn1r3q/4pPk1/N2P1N1b/1pnR1r2/rr1PpPb1/7b w - - 0 1 illegal: Other
5R2/n6P/b1qb2r1/2Qn1nN1/nRNBK2B/1n1Br1P1/1pP1pP1p/k1r5 w - - 0 1 illegal: No proof kernel
1N1n1q1k/4P1b1/R1r3P1/2R2p1N/r6P/p2pB1br/P2nBr1N/r1bQ3K w - - 0 1 legal: proof: g4 b5 c4 bxc4 d4 e5 g5 exd4 g6 hxg6 f3 g5 Qd2 g4 Qd3 Qe7 Qd1 Qd8 Nd2 g5 Qb3 g3 Qa4 g4 Nb3 g2 Nd2 g3 Qd1 Bb7 Nb1 Bd5 Nh3 Be6 Ng1 Bg4 fxg4 Rh7 Qa4 Rh5 Qd1 Rh8 e4 a5 b4 f5 b5 Kf7 g5 Kg7 g6 c5 e5 d5 e6 a4 e7 a3 b6 c3 b7 c2 h3 c4 Qg4 c3 Bb2 c1R+ Ke2 c2 Kf3 Ra4 Be2 Nc6 b8N Nf6 Nd2 Ne4 Nb1 Rh4 Nc3 Kh8 Bd1 Bg7 Nb1 Qf8 Ne2 g1B Kg2 Nd8 Nf4 Bf2 Nh5 Be1 Kg1 g2 Nd2 Bf2+ Kh2 g1R Rb1 Rf1 Nf3 Bg3+ Kg2 Rf2+ Kg1 d3 Nh2 d2 Bd4 Nc6 Rb6 Nd8 Be3 d4 Ra6 d3 Qe2 Ra1 Qf1 Rc1 Be2 d1R Qe1 Nd2 Qf1 Rff4 Kg2 Rf3 Rg1 Rf2+ Kh1 Ra1 Qe1 Rdb1 Qf1 Rb6 Qb1 Rc6 Rc1 Bc7 Qb3 Rhf4 h4 R4f3 Rb1 c1B Qd1 Rh3 Rb5 Bf4 Rc5 Bg3
2BR4/1p6/2bpnr2/5P1p/Q1nrk1n1/1P1N3P/3RP1bB/BNrqbnK1 w - - 0 1 legal: proof: d4 a5 c4 f5 g4 fxg4 d5 a4 d6 a3 Qb3 Kf7 c5+ Ke8 c6 exd6 cxd7+ Ke7 Qc3 Ra4 b3 Ra8 Qb2 axb2 f4 Ke6 Kf2 Kf5 a4 h5 h3 g5 a5 c5 a6 c4 a7 g3+ Kg2 g4 Ra4 c3 Rc4 c2 Rd4 Be7 Bd2 c1R Ba5 Nc6 Bc7 Qf8 d8B Bd7 Re4 Ne5 Bb8 Nf6 Nc3 b1B Rd4 Be4+ Nf3 Nc4 Ba5 Bdc6 Na4 Rh6 Kg1 g2 Bc3 Qg8 Bc7 Qd5 Ne5 Bd8 Bb8 Ba5 Ba1 Be1 Nc3 Bf3 Re4 Qd1 Nd3 Rg6 Re8 Rh6 Kh2 g1N Rd8 Bg2 Nb1 Ke4 f5 Rg6 Bc7 Rh6 Bb6 Rc8 Bf2 Nf3+ Kg3 Rc7 a8Q Ng5 Kh2 g3+ Kg1 Ng4 Qa4 Rf6 Be3 Re7 Bd2 Re5 Bf4 Rd5 Bfe5 Bf3 Bg2 Rd4 Qa5 Ne6 Qa2 Ke3 Qa4 Bfd5 Be4 g2 Bh2 Nd2 Ne5 Nf1 Bd3 Bf3 Bc4 Ke4 Nd3 Nf8 Nf4 Qd3 Qa7 Nfe3 Be6 Nc4 Bc8 Ne6 Qa4 Qc2 Nd3 Bb4+ Ne1 Nge3 Kf2 g1N Bd7 Bg2 Nd3 Nf3 Rf1 Nfe5 Kg1 N5g4 Rd1 Nf1 Bc8 Be1 Rd2 Qd1
5r2/2b1Q2n/nR1BPpp1/7p/1qn1n2N/bRP1RK2/nPB3P1/1qrN1k2 w - - 0 1 illegal: No proof kernel
rq3qB1/5n1K/r1b4N/1rpP1q2/n1Qp1pPk/3P3b/1q2B2P/B2RN1R1 w - - 0 1 illegal: No proof kernel
q2rr3/4r2q/2N4B/1pR3Pp/2R1r3/2nPKpbn/kPN1bRPQ/B3n3 w - - 0 1 illegal: Other
1q2nN2/r2bbR1B/1B2NP1b/3r4/pbnP4/Bkp2PQ1/2p3PR/1r3q1K w - - 0 1 illegal: No possible last move, all moves rejected
2RQ2BK/5R1q/3prn2/bb3qP1/N1rbkp1P/B4npq/1P1P2bN/1N6 w - - 0 1 illegal: No proof kernel forced: bxDB
B7/2Np1K1r/1q2R1Pb/qP1Q3b/2Np4/pnkbB3/1rPnR1PR/4rb2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 g6 a5 b5 a3 Rh2 f3 Bd2 a4 Nh3 a2 Ke5 f5 Ba5 h4 Ng5 f4 Qe1 f2 Nh3 f3 Qd2 Bh6 Nc3 Rh7 Nb1 Nf6 Ng5 h3 Kf5 Nc6 Ne6 Qb6 Qg5 Bb7 Bd2 Na5 Be3 Nb3 Nc7 Ne4 Nd2+ Kc3 Re1 a1Q Nc4 Ned2 Qh5 Bc6 Kf6 Qa3 Qg5 Qb4 Qd5 Q4a5 Bg5 a3 e4 Re8 Be2 f1B e5 f2 Bf3 Bd3 e6 f1B e7 Ba8+ Re6 Bb7 Rh1 h2 Be3 Ba8 Qf5 Bae4 Qd5 Bf5 Be4 Bg4 Bf3 Bh5 Be4 Rg8 e8R Rgh8 Qc5 Rg8 Ba8 Rgg7 Qd5 Re7 Rg1 h1R Rh8 Rh2 Re8 Rh3 Rh1 Rh4 Rh2 Re4 Bf4 Re1 Be3 Rc1 Rd6 Re4 Rde6 Rb1 Re7 Rh8 Kf7 Rb2 Bf2 Re1 Re2 Rb8 Be3 Rh8 Re6 Rh7+
5B1K/b1Pp1P2/5N2/1rQP2p1/Pb1bB3/2Rrq1nk/n1r2pr1/R1RNq3 w - - 0 1 illegal: No proof kernel
1K1n2n1/1RpN3k/4pr1N/R3r1BB/QpP4P/4qq1b/PPb4B/rq1q4 w - - 0 1 illegal: No proof kernel
4B1rq/2pQ4/1P2pq1q/3B1nP1/Bb2P1bp/1Rqr1P2/1NRN2K1/r1n1k3 w - - 0 1 illegal: No proof kernel
Nn1QR1b1/2p2nP1/1RPpPK1b/6B1/1PB1b2p/1N3qq1/1br1N2k/2r3q1 w - - 0 1 illegal: No possible last move
RB1Br3/1PP2K1r/1b4B1/Qp6/Pqr3qp/1b2pbbk/2N4P/R2n1n1N w - - 0 1 illegal: No proof kernel
6Nn/p1P1r1bk/1rb3Rr/p1PRqr1N/1RP1Q2n/3B3p/2b2B1P/1q3K2 w - - 0 1 illegal: Other
3R1bb1/NPpR4/pp3r1n/B2NqBK1/2b1P1n1/r1nQ2P1/bP6/n2Nk3 w - - 0 1 legal: proof: f4 d5 h4 g5 c4 gxh4 a4 dxc4 a5 e5 a6 exf4 Ra4 b6 Ra2 Qd5 Ra1 Qb7 axb7 Bb4 Rh2 Be7 Rh1 Bf8 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5+ Kh5 Ke4 d4 f5 d5 c3 g3 c2 e3 f3 d6 f2 d7 h3 d8N h2 Ra2 f4 Nf7 f3 Qd7 Na6 Qd8 Nh6 Ra4+ Nb4 Ba6 f1N Kh4 f2 Qd6 Be6 Ne5 Ba2 Ra3 Nd5 Rb3 Nc3 Bd2 c1N Ra3 Nb3 Kg5 Na1 Bb5 Rg8+ Kh5 Rg6 Bd7 Rf6 Nc6 Bg8 Qe5+ Kd3 Nh3 Ke2 Rg1 h1B Qe4 Nh2 Ra6 f1B Nf2 N2g4 Nd1 Ba2 Qf5 Bhd5 Kg5 Bg8 e4 Rd6 Qd5 Rf6 Bf4 Ke1 Bf5 Rf7 Rg2 Bfc4 Qd3 Rf6 Ra3 a6 Rd2 Rd8 Be5 Rd5 Rb3 Ra5 Na7 Ra4 Bd6 Ra3 Bb4 Nf7+ Kf4 h5 Ba5 Nfh6 Kg5 h4 Rb5 h3 Rd5 h2 Rd8 h1Q Rd7 Ne2 Nbc3 Qh3 Nd5 Nc3 Rd8 Qh5+ Kf4 Qh4 Qb1 Kf1 N5e3+ Ke1 R2d7 Nf2+ Ng4 Rg6 Qd3 Qf6 Nge3 Nfg4 Nd5 Qh8 Be6 Qd4 Bf5 Rf6 Kg5 Qe5
K2bqB2/rB2P3/4Q2p/R1q1rpbp/4NP2/R1Pbq3/1N1P2bk/1N1n1b2 w - - 0 1 illegal: No possible last move, all moves rejected
3K1r2/1q1p2Bq/r1bP1npR/2R4p/b2P3b/P2b1b1P/k3NBN1/4rRQ1 w - - 1 2 legal: proof: g4 c5 d4 f5 b4 fxg4 e3 cxb4 Bc4 a5 Bb3 Nc6 d5 Nd4 exd4 a4 Kd2 axb3 Ke2 Ra3 Ke1 Ra8 Kd2 Kf7 Ke3 b5 Kf4 e5+ Kf5 h5 f4 g3 c4 e4 c5 g2 d6 b2 a3 e3 c6 b3 c7 b4 h3 e2 Qc2 e1R Be3 g6+ Ke5 Ra6 f5 Qe7+ Kd5 Nf6+ Kc5 Rh7 Ne2 g1Q Nec3 Qg2 Na2 Bb7 c8R Bf3 Nbc3 b1B Rd8 b2 Ne2 b3 Qc1 Bc2 Rf1 b1B Nf4 b2 Nc3 Ba4 Bf2 Bbe4 Nce2 b1B Rc8 Qh1 Ng2 Bec6 Ra8 Bg7 Rh8 Bd3 Qe3 Bh6 Rc1 Bg5 Rc2 Rg7 Rh6 Bh4 Qg5 Ne8 f6 Ke6 f7 Nf6 f8B Rh7 Qg3 Rf7 Kb4 Kd5 Bg7 Qe8 Qh2 Qg8 Qg1 Qh7 Rc1 Bcb5 Rc8 Bc6 Rc7 Rb6+ Ka5 Kc4 Rc8 Kb3 Rc7 Ka2 Rc8 Bce4 Rc1 Bec6 Rc5 Rb5+ Ka6 Ra5+ Kb6 Ra6+ Kc7 Qh2 Rc3 Qf4 Kc8 Qe4 Kd8 Qd5 Rc1 Qb5 Rc3 Qb7 Rc5 Rf8+
1q2b3/5R2/pqn1q2N/rpPBrQ1R/2qkP1P1/1P1N2pr/1n1Bq3/1R3K2 w - - 0 1 illegal: No proof kernel
b7/q2P2N1/2k4q/B3bp1q/RPn1p1Qp/5bnr/1bKBPP2/2BRbN2 w - - 0 2 illegal: No proof kernel
3n1Rnr/kn1p4/n1pnnr2/2Pq1P2/2R1n2p/Q6N/K1PB1b1P/3B2NB w - - 0 2 legal: proof: e4 f5 b4 fxe4 d3 a5 Na3 axb4 Nb1 b6 f4 g5 f5 Ba6 Qf3 Bb5 Qf4 Bc4 dxc4 gxf4 Kd2 h5 g4 e5 a4 b5 g5 c6 g6 e3+ Kd1 b3 g7 e4 a5 e2+ Kd2 e1N Kc3 e3 Kb2 e2 a6 b4 a7 h4 Nf3 Qa5 Ra4 Kd8 Ra1 Kc7 Rg1 Kb6 Rg5 Qd5 Rg2 Bc5 Rg3 Ng2 Na3 e1N Rg5 Nd3+ Kb1 b2 Ra2 Ne5 Ne1 f3 Rg3 f2 Re3 Na6 Bd2 Rf8 a8Q Nf4 Rh3 Nf7 Nb5 Ne6 Be2 f1N Nd4 Nfd8 Nef3 Ng3 Bd1 Rf6 Ne2 Ne4 Neg1 Nd6 Ng5 N6b7 Rc3 Bd4 Ra4 Bf2 Ka2 b1N N5h3 Na3 Rb3 Nb5 c5+ Kc7 Qa7 Nd6 Qa8 Qg2 Rc3 Qd5+ Rc4 b3+ Ka3 b2 Ka2 Nh6 g8B b1N Bf7 Ng8 Bfh5 Nb5 Bhf3 N5d6 Bh1 Nc3+ Ka1 Ncb5 Ka2 Ne4 Rb4 N5d6 Rb6 Nb8 Qa3 Na6 Rb3 Kb8 Rg3 Ne7 Rg8 Ka7 Rf8 Ng8
bB4Qr/1n1B3R/1qP1Pp1p/2qrrP1P/1NNb4/2p3RK/3N4/2qb1r1k w - - 1 2 illegal: No proof kernel
3b3b/1b3q1P/q1k1NnqQ/n2p4/1P2p3/r1NpPK2/1BPR1Nn1/1q1BR3 w - - 0 1 legal: proof: f4 c5 g4 a5 d4 cxd4 a4 h5 f5 hxg4 Kd2 e5 Nc3 b5 Nb1 Ra6 Ke1 Re6 fxe6 bxa4 Kf2 g5 b4 f5 h4 d5 h5 a3 h6 a2 h7 f4 e7 Kd7 e8N d3 Nf3 g3+ Kg2 a4 Nc3 a3 Ng7 g4 Nh4 f3+ Kg1 g2 Kf2 g1Q+ Ke1 f2+ Kd2 g3 Ke3 g2 Rb1 a1Q Kf3 a2 Ne8 Qc7 Bf4 Bg7 Kg4 Kc6+ Kg3 Qf7 Rh2 Bb7 Kf3 Nf6 Rc1 Qb1 Nc7 a1Q Ne6 Qa6 Nf5 Re8 Qe1 Bh8 Qd2 Nbd7 Rh4 Qa3 Ng5 Nb6 Ne3 Nc4 Ng4 Ra8 Re1 Qa5 Be3 Qb5 Rh5 Ra3 Rh2 Qa6 Ne6 Na5 Bg5 Qh1 Qf4 g1B+ Rg2 Qhh5 Qh2 Ra4 Bc1 Ra3 Bb2 Qg5 Qh6 Qgg6 Rh2 Qf8 Kg3 Qff7 Bh3 f1N+ Kg2 Bb6 e3 Nd2 Kg3 Nf3 Rd2 Bd8 Bf1 Qc4 Be2 Nh4 Bd1 Ng2 Kf3 Qa6 Nf2 e4+
rk5N/3K1p2/n3RQpr/r2Bp3/2q1qN2/1PbnR2P/P1RB1P2/q3nq2 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 axb6 Bh3 b5 Bg2 b4 Bf1 b3 Ne2 b5 Rg1 b4 Nbc3 b2 Rh1 b1N Nb5 b3 Na3 b2 Ng1 Bf5 Qf3 Be6 Qd1 Bb3 cxb3 Ra5 Nh3 Ra7 Ng1 Ra8 Ke2 Kd7 Ke3 Kc8 Kf4 e5+ Kf5 c5 d4 e3 d5 e2 h3 e1Q d6 c4 Nf3 g3 Be2 c3 Qd3 g2 Qe4 g1Q Qc6+ Qc7 Nc2 Nf6 Bd2 Qgf1 Ne3 c2 Nd5 c1R Nf4 Na6 d7+ Kb8 Nh4 Rc5 Nhg6 Nd5 Qf6 Ndb4 Bc4 Nd3 Bd5 Rh6 Nh8 Na3 Rc1 b1Q Rc2 Qa1 d8R+ Qc8+ Kg5 g6 Re8 Qe4 Re6 Ra5 Rg1 Qcc3 Rg3 Qcc4 Re3 Bd6 Qg7 Bc5 Kf6 Bd4 Ke7 Bb2 Kd7 Bc3 Rc1 Nc2 Qf6 Nce1 Rc2 Ra3 Re7 Ra4 Re6 Ra5
2Q1nN2/p1pBbk2/2r3RP/PBbn2b1/P3p2b/1RK2bn1/2PR2r1/2r1N3 w - - 1 2 illegal: No proof kernel
2K4N/Pnp1bP1p/3Rrb1B/pN4b1/1PP1R1B1/1bQ2q2/bn1R3b/1n3k2 w - - 0 1 illegal: No proof kernel
n2k4/3p3P/n2n3p/RbB2nr1/1QpB1B1P/1Nq4n/qr1PP1Nn/1R3K2 w - - 0 2 illegal: No proof kernel
2BB4/b1N1p3/3K3p/4PPp1/R3P2N/QbnbR2n/n1nkP1bN/1r1n1q2 w - - 0 1 illegal: Other
r2n1kb1/R4b2/p1b1b2r/3Nb1PN/2pQ1P2/Pp3PB1/2bNr1B1/n1R4K w - - 0 1 illegal: No proof kernel
qq2R3/B1p1Qp2/k1qP1PK1/7P/p1Pr2n1/1Rq2n2/2BnN1rN/N2b3n w - - 0 2 illegal: Other
K2qQ3/5Ppb/1PRR4/1BN1Bqb1/B1p1r1Pb/brN5/nP3p2/q4qk1 w - - 0 1 illegal: No proof kernel
r2N1k2/q7/bppqqp1b/1P1B1bR1/P1Q2N2/rBq4K/2P1P3/n1N1R1b1 w - - 0 2 illegal: No possible last move, all moves rejected
1b6/pK3b2/1PqP1b2/NqP2k2/QRq1b1p1/B2r1B2/P4pN1/q1rBnR2 w - - 0 1 illegal: No possible last move, all moves rejected
N3r2K/1n4Q1/2kp1Bn1/1n3N2/q1P1PRpR/3r2RB/p2Pp1P1/1bq1b2r w - - 0 1 illegal: No proof kernel
4N3/Q1K1bNP1/1Pp2R1b/4Pr2/p1Br1r1p/PqB3kp/1n1qR2q/1N2n3 w - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 g5 c5 gxh4 c6 bxc6 Ba6 c5 Bf1 c4 f3 e5 Qe2 e3 Kd1 e4 Kc2 Bf5 Qe1 e2 Qd1 e3+ Kc3 Be4 fxe4 Qe7 Kc2 Qd8 b4 Ke7 Kc3 Kd6 Kd4 e1Q g4 f5 a3 h5 b5 a5 d3 c3 g5 a4 g6 c6 g7 e2 b6 h3 Ra2 c2 Nc3 f4 Ra1 h4 Ra2 f3 Bd2 c1B Bh6 f2 Nf3 Na6 Nd2 Ne7 Qb3 Qb8 Nd5 Nb4 Kc4 Ke5 Kc5 Nc2 Nc7 Qd1 Qf7 e1Q Nb1 Qed2 Ne8 Ne1 Rg1 Qf3 Rg6 Nd5+ Rd6 Nc3 Qa7 Be7 Bg5 Ne2 Bf6+ Kf4 d4 Qb3 d5 Rf8 Bc3 Kg3 Rb2 Nf4 Bc4 f1R e5 Qd8 Rc2 Qh2 Rf2 Rf5 Re2 Bg5 Re6 Be7+ d6 Rf2 Rf6 Nfd3+ Kd4 Bh6 d7 Qc7 d8N Nb2 Nf7 Rd8+ Rd6 R2f4+ Kc5 Beg5 Rf6 Rdd4 Bd5 Qc8 Kd6 Qb8+ Kd7 Qd6+ Kc8 Qdb4 Bc4 Qa5 Kc7 Qd5 Rd6 Be7 Rf6 Qdg2 Re4 Qgc2 Re2 Qd2
q1r2qNq/1nP1pbRN/3p1pBK/BrN5/Q4n2/P1P1Pp1k/b7/2R3b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 g6 Qd5 gxf5 Qd1 f4 Kd2 b5 h4 d6 c3 Kd7 h5 Ke6 c6 Kf5 h6 f3 Ke3 b3 c7 g3 h7 Kg4 a3 g2 Ke4 b4 Ra2 b2 Qd3 b3 Qa6 Nd7 Bf4 Ngf6+ Ke3 Nh5 Qa4 Bg7 Nh3 Ra5 Nd2 b1Q Ng5 b2 Nde4 Nc5 Be5 Rb5 Bd4 Rf8 h8N Nb7 Bb6 Qa1 Rg1 b1B Ba5 Be6 Rc2 Bba2 Nc5+ Bd4+ Ke4 f6 Nhf7 Kg3 Nh6 Qa8 Ng8 Bf7 Kf5 Qe1 Rc1 Rc8 Rb1 Bf2 e3 Nf4 Bd3 Kh4 Rc1 Qe2 Rgd1 g1Q Bb1 Qh2 Rg1 Qf1 Bc2 Qfg2 Be4 Kg3 Bb1 Qh8 Nh7 Kh2 Bd3 Qgg7 Rg6 Qf8 Rg7 Ne6 Kg4 Nf4 Bg6 Bg1 Kh4 Ne2 Kh5 Kh3 Kh6 Nf4
KRq1B3/Bp1b1P2/r1PP1p1N/bk4qB/p4Prq/Rpb5/2n2Q2/1n1N4 w - - 0 1 illegal: No proof kernel
n3nN2/1rQBp1R1/NP1Rn2b/1PBpP3/1Ppbn3/K5q1/1p5n/2kr3B w - - 0 1 illegal: Other
5b1R/1pq5/2rP1rp1/2R1Nr1n/1P2KQ2/1P2p1rp/RB1N1Pb1/n1bB2k1 w - - 0 1 illegal: No proof kernel
3Qnb2/r2n3k/B3q3/p1BpbPq1/R2P3B/2p2PpP/1n2N1Nr/R1n3K1 w - - 0 1 illegal: No proof kernel
4Bb2/1qP1P3/pR2r2Q/2p3Nr/pBq3Kp/qbP2B2/1nkP4/2qNn1R1 w - - 0 1 illegal: No proof kernel
1b1QBBnK/p7/1Pbb1N2/1p1r2PB/1Rp1rPN1/6qk/b2qp2P/n5R1 w - - 0 1 illegal: No proof kernel
1q2B3/n1N1RQp1/2PpprNp/n6q/4K1bn/3R1B1P/N1k2PPr/4r2q w - - 0 2 legal: proof: d4 c5 b4 cxd4 e3 a5 Qg4 axb4 Qd1 e6 Qf3 Bd6 Qd1 Bf4 exf4 f6 f5 Na6 Bf4 Nb8 Be5 fxe5 Kd2 Ke7 Kd3 Kf6 a4 b5 c4 d6 a5 b3 c5 b2 a6 e4+ Kc2 Ke5 f6 e3 Kd3 b4 a7 e2 f7 e1R f8N b3 Qf3 Nh6 Qb7 Nf5 Qc7 Bb7 Ra6 Bf3 Nd2 b1N Qb7 b2 Nb3 Nc3 Ra5 Nh4 Nh3 Nb5 Nc1 Bg4 Nf4 Nc6 Na2 Qb8 Nd5 Kf5 Ra3 Na5 Ng6 Rf8 Rb3 Rf6 Nc7 h6 Rc3 b1Q+ Rc2 Qa1 h3 Qc1 Be2 Qg5 Bf3 Qh5 Kd2 d3 Rc3 Ra1 Ke3 d2 Rb1 d1Q Rd3 Qh1 Rbb3 Rb1 Bc6 Rd1 Be8 Rg1 Nd5 Ra1 Qf7 Rc1 Nc7 Re1+ Kd2 Ke4 Rb1 Nd4 Rb7 Ndc6 Kc3 Qd8 Kc2 Rb8 a8B Na7 Nd5 Qc8 Re7 Rbb1 Kd2 Qb8 Nc7+ Kf5 Bf3 Rbc1 Be2 Ke4 c6 Ra1 Re3+ Kd4 Rd3+ Kc4 Ke3 Rab1 Nc3 Kb3 Na2+ Kc2 Ke4 Qh2 Rd5 Rh1 Rd4 Rbe1 Rd3 Qg1 Rg3 Rh2 Rd3 Ra1 Bf3 Qh1 Na8 Rc1 Nc7 Re1+
N5rB/3qNR1B/1Qq1q3/p1P4K/Pq3pn1/4Pq1R/p1p2P2/brnk1N2 w - - 1 2 illegal: No proof kernel
5NNB/nRP5/1q1b4/1Pp3Kp/n1qr1P1p/BpPbR2B/5kbb/3Q2b1 w - - 0 1 illegal: No proof kernel
N2R4/1K3pbb/pnPqB2B/p2q4/1n1P3P/b2RQP2/p1k1Nb2/b2Nr3 w - - 0 1 illegal: No proof kernel
bbq1Q1bK/3prPnq/5k1p/2B3RP/PNR1p2r/1B4pb/1qN3PR/8 w - - 1 2 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 c3 fxe4 Be3 b5 Bg5 b3 Bc1 Na6 c4 b4 Kd2 Nc7 Ke1 Nb5 cxb5 Qb6 Kd2 Qc7 Ke1 Qd8 Kd2 Kf7 a4 g5 f4 e5 h4 g4 b6 e3+ Kd3 e4+ Kc4 g3 Kd5 e2 Ke5 e1Q b7 b2 b8R d3 f5 d2 f6 b3 Ne2 Bb7 Ra2 Qc8 Nbc3 b1Q Rh3 b2 Nd5 Nh6 Nd4 Nf5 Rh2 Ng7 Bc4 Qh1 Nc2 Be7 Qe2 d1B Be3 Bc6 Qf1 Bg4 Bc5 Bh3 Bb3 Ra6 Rb4 Ba8 Rb5 Qc1 Qf2 b1B Ndb4+ Kg6 Ra1 Ba2 Qe2 Qa3 Rc1 Bd8 Qd1 Bc7+ Qd6 Bb8 Qc7 Rd6 Qd8 Rf8 Qe8+ Rf7 Nd4 Qb2 Rc3 Qhc1 Ndc2 Qh6 h5+ Kg5 Ra5 Rd1+ Bd6 Rh1 Rc5 Qb1 R3c4 Qg6 Rd5 h6 Ra5 Qh7 Rb5 Ba7 Bc5 Qb2+ Kd6 Rf8 Ke7 Rg8 Kf7 Bb8 Qe7 Re8 Qd8 Re6 Qe8 Re7+ Kf8 Rf1 Ra5 Rf4 Rb5 Qg6 Kg8 Rh4 Kh8 Kf5 Bf2+ Ke6 Rg5 Qf7 Bc5 Qg6 Kg8 Qh7+ Kf8 Bb1 Ba2 Bc7 Rd4+ Bd5 Bc4 Bb8 Ba2 Qf5 Kg8 Ke5+ Kh8 Ba8 Bf7 Ba2 Bg8 B2d5 Be6 Bdc6 Bc4 Bd5 Bb3 Bg8 f7 Kf6 Rc4 Qh7#
1q2Bk2/1Kn2pb1/1Q2pPq1/B4PP1/B1n1P2N/ppr2n1q/6R1/4RqrN w - - 0 2 illegal: Other
R2b4/1pp1P2N/N2p3K/kr3P1Q/B2q2N1/P1P1p1rb/1B6/bnq1rRb1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 a5 Bg2 axb4 Bf1 h5 d4 hxg4 Ba3 e5 Qf3 e3 Bc1 e4 Qe2 Nc6 Qd1 Ne5 dxe5 Bd6 Na3 Be7 Nb1 Bf8 Ke2 g5 a3 Rh3 f4 b3 e6 Ra5 Ra2 b2 Nd2 b1R Bb2 Be7 Ngf3 Nf6 Nb3 Nd5 Ba1 g3 Ne5 g4 Bb2 g2 Ra1 g1Q Nc5 g3 Na6 Rh5 h4 Rg5 h5 g2 h6 Rg3 h7 Nc3+ Ke1 e2 Kd2 d6 h8N Qb6 Nhg6 g1B Nf8 Qc5 Rh8 e3+ Kd3 Qd7 Bg2 Qa4 Bc6+ Kd8 Bb5 Qab4 Ba4 Rb5 Rg8 Bg5 Nh7+ Ke7 Bc1 e1B Qh5 Bd7 Ra8 Bc8 Qe2 Ke8 Qf3 Bd8 e7 Bh3 f5 Qc6 Qg4 Qf4 Qg5 Bd2 Ng4 Kd7 Qh6 Qc5 Qh5 Kc6 Ngf6 Kb6 Ng4 Na2 Ke2 Ka5 Kd3 Qf1+ Ke4 Qe1 Kf4 Bc3 Kg5 Qd4 Kh6 Bb2 Nf8 Nc3 Nh7 Qf1 Bd2 Rd1 Bc1 Qe1 Rb1 Ba1 Bb2 Qed2 Rc1 Nb1 c3 Rf1 Rd1 Qc1 Re1 Rf2 Rd1 Re2 Rf1 Re1
k3q1B1/p2P1p2/Nnr1Qp2/BP3r1N/r3P2q/n1q2R2/PR3q1p/1K3B1b w - - 0 1 illegal: No proof kernel
3Nn3/Pqnpp3/NB2QpBn/3R2K1/3P2R1/npBb4/3PP1rb/bk4b1 w - - 0 2 legal: proof: g4 b5 f4 h5 b4 hxg4 f5 a5 f6 axb4 Nc3 Ra3 Nb1 Rd3 cxd3 gxf6 d4 f5 Qc2 f4 Qb3 Nh6 Qd1 Ng8 Kf2 c5 h4 g3+ Kf3 c4 Kg4 b3 a4 f3 h5 b2 a5 b4 a6 c3 a7 b3 h6 c2 h7 g2 Ra5 f2 Rh3 Bh6 Ra3 Qb6 Qe1 Kd8 Rh1 Kc7 Ra6 Kc6 Kh5 Kb5 Ra2 Kb4 Ra5 Qb7 Nf3 g1B Na3 b1N Bh3 f1N Qf2 Bf4 Qe3 Nh2 Qe6 Nh6 Ne5 N2g4 Bb2 c1B Nb5 Na6 Nc7 Bfh2 Kg5 Na3 Rd5 Nf6 Bf5 Ne8 Bg6 Rg8 h8B Rg7 Ba1 Bb2 Nc6+ Ka4 Nd8 Rg8 Na8 Nac7 Be5 Bc3 Bb2 Rg7 Bc1 Ba1 Bb2 Qb8 Bd6 Ba6 Bc3 Qb7 Bc5 Bd3 Bb6 Bg3 Rh4 B3h2 Kh5 Rg8 Bh7 Rg2 Bg6 Nb1 Rg4 Ka3 Kg5 Ka2 Rc5 Na3 Rd5 Ncb5 Nc7 Kb1 Na6 Nbc7 Re5 Bc2 Rc5 Bd3 Rd5 f6+
Q4R1q/3n2pp/7p/b2KqB1N/rr3p1B/Nn1RP1P1/3PkpP1/3bb2B w - - 0 1 illegal: Other
B1b3n1/q4p2/b1BN1bp1/1QnR1R1P/1P4p1/Bk2r1Pr/1P1p1p1b/1K5N w - - 0 1 illegal: No proof kernel
2B5/1ppP3Q/q1N1N3/P2bK1pR/P2Bb1pr/p2Rn2n/1P3r2/rk1r3B w - - 0 1 illegal: Other
3r3n/1kNB4/1r4Pb/2qpB3/1Ppp1pR1/Q1Pp4/2RP1r1b/3bqRKN w - - 1 2 illegal: No proof kernel
5k2/b1BQ1pq1/p3BPpK/R1NPn3/q1p2P2/P1Bb3n/q1p3R1/n3Nr2 w - - 1 2 legal: proof: f4 b5 g4 d5 c4 bxc4 Qc2 a6 Qg6 Ra7 Qg5 Rb7 Qg6 h5 Qe4 Rb3 f5 Rf3 exf3 hxg4 f4 dxe4 Ke2 c3 Ke3 c5 d4 e5 b4 g6 h4 c4 b5 c2 f6 g3 a3 g2 h5 Nh6 b6 Bf5 b7 Bc5 Nf3 g1N Nc3 Ba7 Rb1 Nd7 b8B Nc5 Rh2 Nb3 Bh3 Na1 Bb2 Qd7 Bg4 Qa4 Rg2 Rh7 Kf2 e3+ Kg3 e4 Kh4 e2 Kg5 e1Q d5 e3 Bc7 e2 Ne4 Qg3 Bbe5 e1Q Nc5 Qe4 Ne1 Qgb3 Rb2 Qa2 Bc3 Qe7 Rb6 Bd3 Rb5 Qf8 Ra5 Qg8 Bh3 Ng4 h6 Ne5 Bg4 Rg7 h7 Kf8 h8Q Rh7 Bf5 Rh2 Qh3 Rh1 Qg4 Nh3+ Kh6 Rg1 Bc8 Rf1 Qe6 Bb8 Qc6 Ba7 Be6 Qb2 Qb5 Qa2 Qd7 Qg7+
1q2nR2/q1r1R2p/3Bp1PK/1n4P1/1nP1pQBb/k4p2/NN4pP/1bq1N3 w - - 0 1 illegal: No proof kernel
7k/2Nn2Rp/3BNbpr/p5PP/n2rQN1K/1pr2qB1/npPP4/Rn6 w - - 1 2 legal: proof: b4 c5 a4 cxb4 f4 e5 Nc3 exf4 Nb1 b3 Ba3 b6 Bc1 b5 e4 d5 e5 b4 Bd3 Ba6 Be4 Bb5 axb5 dxe4 Kf2 a5 g4 f5 h4 Kf7 b6 f3 Kg3 f2 h5 f1N+ Kh3 f4 g5 f3 b7 f2 Bb2 e3 Bc3 e2 Qe1 b2 Nf3 b3 Kg4 Qd5 Qd1 e1N Ra2 Ra6 Ng1 Ng3 Qf3+ Nf6+ Kh3 Kg8 e6 f1R e7 Nc6 b8B Nd7 e8N Nd3 Qf4 N3c5 Ra1 Be7 Bd6 Na4 Qe4 Nb4 Nf3 Ne2 Kh4 Na2 Bce5 Nec3 Bg3 Bf6 Nd4 Rf3 Nc7 Rd3 Nde6 Rd4 Rh2 Qf5 Re2 Qf3 Nf4 Rc6 Na3 Nb1 Nab5 Bd8 Bc5 Rh6 Bd6 g6 Nce6 Be7 Nbc7 Bf6 Nf8 Kg7 Re3 Rg8 N8e6+ Kh8 Rc3 Rd8 Rc5 Rc8 Rf5 Be7 Rf7 Bd8 Rg7 Bf6 Nb5 Rc5 Nbc7 Rc3
1BRR4/p2P1pKN/kN2rP1r/1p1Qpb2/B1nn2p1/r3nR2/r2P2qP/8 w - - 0 1 illegal: No proof kernel
RRq2k2/rB1B1p2/1q4n1/pN1b4/2pP4/p1rN1rP1/1pP1NP1b/4KQ1r w - - 1 2 illegal: No proof kernel
4bKQ1/1rBn1RP1/2Bp1p2/4P1N1/nq2p2k/P4p1p/1Np2P1R/b1Rq1b2 w - - 0 1 illegal: No proof kernel
2nn2N1/2b1pppk/pp1r3B/2r1BP2/PPN2R2/r1p1Bq2/P6K/R4r1Q w - - 2 3 illegal: Other
1rKn4/pp4pb/2Pp1Pk1/1RBp4/2Bq1R2/1Q2nn1P/p5P1/1NN1bRn1 w - - 0 1 illegal: No possible last move, all moves rejected
6n1/r1n2p1k/nQRqrr1p/2q2NRP/5PBq/P4PBb/2NN4/2K2rbr w - - 0 1 illegal: Other
qk1bn1RQ/r1Rqrpn1/1B6/1P2q1qb/1nPq1PB1/1Np4R/2P1N3/1r5K w - - 0 1 illegal: Other
B2RNK2/pqP1RB2/P1qpqb1q/1kq5/bnr1n1n1/B2P4/PQ3rb1/1N6 w - - 0 1 illegal: Other
qNr2Q2/1rP2r2/n2B1RN1/1k1p1NbR/1P5p/3Pq1n1/K1bq1b1P/1nbB4 w - - 0 1 illegal: No proof kernel
1Nn1k2r/1r1rBpK1/B2Rr1R1/2pQ1P1P/1PP2bn1/R2q3b/1nN4r/2b3n1 w - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 h5 a5 hxg4 a6 bxa6 Ra4 a5 Ra1 a4 Ke2 a5 Ke3 c5 Kf4 g5+ Ke5 e3 f4 e2 d4 e1R+ Be3 a3 c4 a4 b4 g3 h4 g4 d5 a2 h5 g2 d6 g3 Na3 Nf6 Nb5 a3 Qd2 Nbd7+ Kf5 e5 Ne2 g1N Qc3 g2 Kg5 e4 Qb3 Bh6+ Kf5 Ra7 Ned4 Rb7 Qa4 Nb6+ Ke5 Bh3 f5 Nc8 Bg5 e3 Nc2 e2 Nbd4+ Qd7 Bh4 Bc1 Qa8 Qd8 Nc6 Ng4+ Ke4 Rd1 Nb8 e1N Be7 Nd3 Be2 Qd7 Bf3 Nb2 Rh2 Rd2 Kf4 Qd8 Kg5 Rd7 Bb7 Re2+ Kh4 Re6 Ba6 Bf4 Qd5 Rb7 Rd1 a1R Rd3 a2 Ra3 Rd1 Rh1 a1R Rh2 Bg3+ Kg5 Ra2 Rh1 Ne2 Rh2 g1B Rg2 B1h2 Rg1 Be1 Rgg3 Ng1 Rg2 Ne3 Rg4 Bd2 Rg2 Bc1 Rg3 Re4 Kf6 Re6+ Kg7 Qd7 Rg6 Ng4 Bf8 Bhf4 Be7 Qa4 Bf8 Qb3 d7+ Kd8 Bd6 Qd3 Be7+ Kc7 d8R Qg3 Ne3 Na4 Qe4 Rh2 Nd7 Nb2 Nb8 Rd5 Nc2 Qd3 Rd6 Rd4 Rb6 Rdd6 Qd5 Rd7 Bd6+ Kd8 Be7+ Ke8 Rc6 Rhe2 Rd6 Rh2
1b6/1rpR4/1r5K/3rr1nB/qrPkb2r/q1NPn1p1/2BN2PP/2Q1bRB1 w - - 0 1 illegal: No proof kernel
2Bb4/bqP1BNp1/Kb3N1P/Q2BR1r1/bq2p1R1/2b1P1P1/1n1brr1k/2n5 w - - 0 1 illegal: No proof kernel
3nbb2/bp2Q3/RPnq2pn/5BP1/bRn4r/q1P2bBr/2P3k1/NB1K2N1 w - - 0 1 illegal: Other
bN3n1k/1p2nBRq/1Rn1qn1B/q1Kp1PN1/r1Q3rB/1P1P4/P3n3/2b2q2 w - - 0 1 illegal: Other
2nBb1Qr/1nn1pN1K/2R4n/2p1PB2/Pr2pq2/nRbrP3/B1P4k/6bN w - - 1 2 illegal: Other
4N3/b1p4N/R1P1pnpr/Kqn1P1rb/PrR4b/P1B2q1k/B2Q2b1/4bN2 w - - 0 1 illegal: Other
1R3Bnn/5kqp/2B1p3/rn2P1BP/b1N1r2P/QP2Np1q/7R/bb2K1nn w - - 0 1 illegal: Other
1q3R2/k1p4q/r1Pr1Pp1/n4Nn1/B2r1pb1/N1rPQrb1/2n2P2/1B2K1BR w - - 0 1 illegal: Other
k2n3b/1N1p1p2/n1B3Pr/P1qPbPBb/N3b2b/5q2/Q1rBp1K1/rR5R w - - 0 1 illegal: No possible last move, all moves rejected
7r/PP1pqpBR/Br6/2r2NK1/3NbnpN/2b2PPk/4Rrr1/bn2q1Q1 w - - 0 1 illegal: No proof kernel
2B1qq1N/3p3p/1Bnb1rP1/K5qP/B2P1r2/Rb1RP1n1/1k1p2Qq/2Nq3n w - - 0 1 illegal: No proof kernel
r3N1r1/2Pr3K/pb1Bp1P1/5Bn1/bq1QPpn1/P5b1/bRRqB3/k3b1N1 w - - 0 1 illegal: Other
N6B/4RR1b/p3BrqN/r3qn2/Qp1rPk1P/1P2p1bK/Pr4q1/2N2r1n w - - 0 1 illegal: No proof kernel
bNB4B/n2p2R1/2p1q1P1/1pr1r1k1/q1P2b2/2rP1r1B/1Pn2rq1/K1Q1RN2 w - - 1 3 legal: proof: f4 g5 h4 gxh4 a4 e5 a5 exf4 a6 Nxa6 Rh2 Nb4 Rh1 Na2 c4 Ke7 g4 Kf6 e4 a5 d3 b5 Kd2 h5 Kc2 a4 e5+ Kg5 e6 f5 e7 a3 e8B h3 Bd2 h2 Nc3 h4 Kb1 h3 Be1 f3 Qc1+ f4 Na4 f2 Qd1 f3 Bf7 Qe7 Qb3 Bh6 Qb4 Bb7 Nc5 Nc3+ Kc1 a2 Na4 Qe6 Rb1 a1Q Qd6 Re8 Kc2 Ne7 Be2 f1R Nc5 f2 Na6 Nc8 Nb8 Ba8 Bf3 Na7 Bb7 c6 Ne2 Qa4+ Kc1 Rhf8 Rg1 h1Q Ng3 h2 Bc8 Qg2 Qd4 h1R Qe3+ Kf6 Bg8 Bf4 g5+ Kg6 Ra1 Rf5 Qd2 Rc5 Qe3 Qg4 Be6 Nb1 Qd2 Qe2 Bh3 Na3 Rb1 Re3 Qd1 Qg4 Bc3 Qe6 Bh8 Rfe1 Ra1 f1R Rb1 Rff3 Nf1 R1e2 Qe1 Ref2 Ra1 Nc2 Kb1 Ree5 Qc1 Na3+ Ka2 Kh5 Rb1 Rh2 Ka1 Kg6 Qe3 Rc2 Re1 Rc3 Qc1 Kh5 g6 Kg5 Rh1 Qgc2 Bg4 Rg2 Rh7 Rgf2 Rg7 Qe2 Ng3 Qf1 Bh3 Qg2 Nf1 Nc2+
3N1br1/2NkBb2/PQ2p3/2q1Pnqp/2Nr3q/1b1Rp2P/1K1n1nP1/n4R1B w - - 0 1 illegal: Other
Rr2n1bK/3N1k1N/rbP5/1Pq1qB2/p6B/2b3p1/PpBq1bP1/r2RQ2n w - - 0 1 illegal: No proof kernel
3bN3/3R1b2/NKBRppb1/n3n2r/1b2QPr1/P3P1np/4qq1P/1Rq2k1B w - - 1 3 legal: proof: c4 g5 b4 d5 f3 dxc4 Bb2 a5 Bd4 axb4 Bf2 g4 Qc1 g3 Kd1 gxf2 Qc2 Bf5 Kc1 Bd7 Qd1 Bc8 Kc2 Kd7 d4 Kc6 g4 Kb5 a3 h5 d5 c5 d6 h4 g5 b3+ Kc3 h3 e3 b2 d7 f6 f4 Nh6 g6 Ng4 g7 Rh5 g8B Ne5 Qd5 Nbc6 Qe6 Na5 Nd2 b1B Be2 f1N Bg4 Bg6 Ne2 Ng3 Kb2 c3+ Ka2 c4 Rae1 c2 Bh7 c1B Bf3 c3 Nc4 c2 Bd5 Bd2 Qg4 c1Q Ref1 Bb4 Qf3 e6 Be4 Bfe7 Nc3+ Kc5 Nd5 b5 Nd6 Qc2+ Ka1 Qf2 Ne8 Kc4 Ndc7 Kc3 Kb1 Kd2 Kb2 Bb7 Qg2 Ke2 Bc6 Bf7 Rb1 Qc8 d8R Qb8 Bd7 Be4 Rhd1 Beg6 Bc6 Qc8 R8d4 Qa6 Qe4 Ra7 Rd7 Ra8 Ng7 Rg8 Nge8 Rg7 R1d6 Rg8 Kc1 Kf1 Kd1 Be1 Kc1 b4 Kd1 Qb5 Na6 b3 Kc1 b2+ Kd1 Bd2 Kc2+ Bc1+ Kc3 Qbe2 Kd4 Rg7 Ra1 b1Q Kc5 Bb2 Kb6 Qc1 Rb1 Bc3 Qf3 Bb4 Qd5 Bd3 Be4 Rg4 Bh1 Bdg6 Qe4 Bd8+
2BNR2r/b2pp2k/n2P1b1N/3q1Rrp/1q3Q2/1nnb1P2/r1P4P/NrB1K3 w - - 0 1 illegal: No proof kernel
1B1r1n1q/qN1b1r2/1bk3r1/4B1pK/nR5N/1ppqn2R/qPPP2PQ/2R5 w - - 0 3 illegal: No proof kernel forced: bxDB
5rR1/qBb2Pb1/b3p1qr/Np3q1Q/4p1r1/6nr/1PB1PPRN/2Knk1B1 w - - 0 1 illegal: Other
qkn1RB2/N2rr3/pBn4n/4P2p/npR1qQr1/1B6/KPP4P/2b1Nq1b w - - 0 1 illegal: No proof kernel
1n1rQ1N1/3B3b/KRppq3/p1b2nr1/5q2/2qPBP2/P1P3NR/kBqb2n1 w - - 0 3 illegal: Other
q1n1QN1r/pr2b3/P1bB1nBk/2Krp1pN/6P1/1R2P3/n1P1nn1R/4rN2 w - - 1 3 illegal: No proof kernel
1n6/kB1N4/1n1bKr2/3nnR1q/rp2p1bP/B1pb3B/1RP1PP1N/1Q1b1n2 w - - 0 1 illegal: No proof kernel
1r1QnKb1/b1n1nRpp/1rpBNR1P/N2n3q/1P4P1/1B2qnPR/8/3nk3 w - - 0 1 illegal: Other
1QbRn2b/1P2bRBB/2K1n1rp/bp3PNk/bP4qN/4n2P/1R2r2p/n7 w - - 0 1 illegal: Other
3N4/3N1pb1/1NR1qnbr/2P1n1p1/2B3rr/R3r1PK/2kP1P1p/QrB3qr w - - 0 1 illegal: No possible last move, all moves rejected
2b4n/1pQ1R3/kN1r4/2BbP3/b2NP1B1/1Pr1bp1N/1nqpnPr1/4RK1r w - - 0 1 illegal: Other
1Bb2nqk/2Nn1P1r/5np1/p1RN4/R1p2Q1P/P1B1rrb1/1bB2rP1/2K2b2 w - - 0 1 illegal: No proof kernel
RrrR2rB/1k3Bq1/1b1p4/2p1nN1P/b1PPqb2/r4bBQ/N1p2n1P/6K1 w - - 0 1 illegal: Other
1Kb2q1r/RP2r1p1/1PQq4/pn6/1N1NB1Pp/B1b1q1RP/b2n3R/2q1bk2 w - - 0 1 illegal: Other
3k3B/R2p1nrP/n5qb/r1P1Nr1b/1pBPq2p/6NP/1Br1n1Q1/2nR1K2 w - - 0 1 illegal: Other
5b2/2kp1pR1/n1p2n1P/4K2q/bqPrb2Q/RbqPqPBN/N3R3/2B1r3 w - - 2 3 illegal: No proof kernel
3k1r2/qpN2Rp1/4pnBb/qQ3Pb1/1P4P1/q2PB2K/3R1N2/R1b1nrqb w - - 0 1 illegal: No proof kernel
n2BqQ2/p3bp1b/1p1k2qK/8/RPnb1N1P/PnrnRB1N/2P1Br2/7b w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 g5 cxd4 g6 hxg6 Bd2 g5 Bc1 g4 Kf2 Ke7 e4 d5 b4 g5 h3 g3+ Kf3 d3 a3 d2 e5 d4 e6 d3 Kg4 g2 Bb2 f3 Bg7 b6 Ra2 f2 Nf3 g1Q+ Bg2 f1B Qe1 d1N Nbd2 Nh6+ Kh5 g4 Bb2 g3 Ne5 Ne3 Kg5 Nhf5 Ne4 d2 Nd3 d1N Ndf2 Nd4 Rh2 Nb3 Nc3 Bb7 Nd5+ Kd6+ e7 Na6 Nf4 Qe8 Bf6 Rc8 Ra1 Rc3 Rh1 Be4 Bf3 Bg2 Qe2 Nb2 Re1 Nc7 Qa6 Qd8 e8B Na8 Bb5 Qe7 Rh2 Bh1 Qc8 g2 Qe8 Qd7 Bd8 Rh6 Bf1 Nec4 Re3 Bh7 B1e2 Rg6+ Kh5 Be7 Qf8 Rg7 Kh6 Qe8 Bd1 Rg3 h4 Rg5 N2h3 Rd5 Re5 Rd2 Ra5 Nd3 Ra4 Qe3 Bb7 g1B Re2 Qg3 Bf3 Bd4 Re3 Rf2 Bde2 Qg6+
2Q5/prN1rqp1/1q2P1Pp/3pn1qb/1P2N1R1/N3bR1b/PKBnk3/2B2n2 w - - 0 1 illegal: No proof kernel
k1q4B/6P1/1bPprn1p/3b3P/1bR3Rb/n2PQ1pr/B2pNrNR/1b3K2 w - - 0 1 illegal: No possible last move, all moves rejected
Q2r2k1/nP1b4/Rb1p2pn/b7/nqPrN1P1/1p2p2K/3NPR2/1r1bBR1B w - - 0 1 illegal: No proof kernel
nb4N1/1P1NBB1p/kr1pK2n/4B3/3b4/qpPP1n1P/RQp1b3/1R1r1r1b w - - 0 1 illegal: No proof kernel
Rnb3Rb/3rK3/pB1n1pQ1/7B/1rP1NP1P/kN3bpq/2pq2P1/1rb2R2 w - - 0 1 illegal: No proof kernel
2Rr1b2/kb3b1p/2b1p1PP/BPn3r1/1N1qP3/Np1r3p/B1n2Bq1/3KRQ2 w - - 0 1 illegal: No possible last move, all moves rejected
1Bqq1r2/4P3/7r/1QpppRK1/bNNP3B/n1P1r1b1/1p2P1R1/1kbBb2n w - - 0 3 illegal: Other
3nr1nk/4n1p1/b2b1P1B/K2p1pPN/5R1P/q1nNQ2R/p2P4/qN2rB1b w - - 0 1 illegal: No proof kernel
2R1n3/pP3B2/k1n3pr/2BPnBpq/pn1q1b2/bK5Q/P2N2Pr/1bR2N2 w - - 0 1 illegal: No possible last move, all moves rejected
1b3Kr1/npnBN1nk/1B1ppp2/2N1R3/q1b2r1N/R3PPbP/2P4b/4q2Q w - - 0 1 illegal: No possible last move, all moves rejected
r4nq1/b2Rpp2/4P1Qp/1rpNq2q/p1N1P2P/2R1Bb1k/PK3nR1/2B1b3 w - - 0 3 illegal: Other
5R2/1b1bq1p1/1np1Q1PR/4b1n1/4Pp1r/PpP1pNB1/k1NnB3/2Kq1Nr1 w - - 0 1 illegal: No possible last move, all moves rejected
2qN4/KB2r1p1/2pb4/3Pp1PB/QpRB1R2/1p1r2P1/nrb1PN1k/2rr3n w - - 0 1 illegal: Other
2r2R1b/4PN2/2BrN2p/pp4Q1/nn3ppP/KPRnnP2/2r1N1k1/2B1qb2 w - - 0 3 illegal: No proof kernel
BK1qr3/2n3pb/1NpnpQP1/1pn3Rb/1P1rPpR1/1N1k4/6BP/2B1bb2 w - - 0 3 illegal: No proof kernel
2n1rb2/2n1p1p1/ppk1P1b1/2B2NQ1/1PB2qR1/2p4N/1P1Pbr2/Kr2rR1R w - - 0 1 illegal: Other
Q3bn2/B1p2p1k/R1nrr1r1/5q1p/N1P2PpP/1p1KbR2/2P1B2r/RN1b4 w - - 1 3 illegal: Other
NR3n2/1Pp3bp/3Np1p1/3P4/2pb1Q1q/Bb5R/k1b1Pr1P/1rRKnBn1 w - - 0 1 illegal: No possible last move, all moves rejected
2R3r1/pq1Nqpq1/nR2p1n1/1pP2B2/2pQ1P2/2bP1k2/PK4qR/Bb3Nr1 w - - 0 1 illegal: No proof kernel
3r1B1R/1RB1pn2/np1rp1N1/2bbPn2/4pNp1/1PKPp1P1/b5qQ/1kN5 w - - 1 3 illegal: Other
N4Q1B/2p1b1pr/q1p2Bn1/5bPP/Nrk1pq2/2pnKRp1/2B1PRP1/4q3 w - - 0 2 illegal: Other
k1Bqn1r1/1bn2Np1/1p1p2Np/4B3/b1KP3P/p1pPR1RQ/2qb1P2/N1r5 w - - 0 1 illegal: Other
2K4k/R1Q2Pr1/2r3qr/pbpp1pb1/nB2pp2/PPNP4/3NR1B1/2Nnq3 w - - 0 1 illegal: No proof kernel
n2K1R2/kPBr1bp1/1pR2nP1/p4r2/1pn3p1/bPRq1B1N/Pp5q/Q4N2 w - - 1 3 illegal: Other
2r5/b1qpn2b/B2P3K/3pP2p/1rB2p2/1nNp1p1Q/1PNRRPbB/5kb1 w - - 0 1 illegal: No proof kernel
1N2rRB1/P7/1k1Kp1pq/2Rpp1P1/Qn1BP1p1/p2P1N1N/1r1bp2b/5bn1 w - - 2 3 illegal: Other
2Nb1rN1/Q2qprr1/q1R1n1n1/P3qbP1/5B1P/5P2/2K1kb1R/Q5B1 w - - 0 1 legal: proof: e4 f5 exf5 c5 c4 a5 b4 axb4 g4 h5 f3 d5 cxd5 g6 d4 cxd4 Bh3 Rh7 fxg6 Rh6 g5 Rh8 Bg4 hxg4 Kd2 Kd7 a4 Kd6 h4 Ke5 d6 Kf4 a5 b5 g7 b3 d7 b2 Qf1 g3 Qe1 b4 Na3 b1R Nc2 d3 Qe6 b3 Ra2 b2 Qb6 g2 Rh3 Nf6 g8Q Rh7 Qc5 Rg7 Nb4 Na6 Qc2 Nc7 Rg3 Nh5 Qcb3 Ne6 Qh8 Qc7 d8B Qe5 Kd1+ d2 Qc4+ Ke3 Qa6 Nhf4 Rh3 Ng6 Ne2 g1B Nc3 Bf2 Kc2 Bd7 Nb5 Ke2 Nd5 Rf7 Nb6 Bg7 Nd5 Bf6 Bc7 Rg8 Qa7 Rgg7 Nd6 Bb6 Bb8 Bd8 Ra4 Bc8 Rc4 Bd7 Rc6 Bc8 Qd4 Bd7 Nc8 d1Q+ Kc3 Qa4 Be3 Rd1 Bc7 b1Q Bg1 Qb7 Bb8 Qab5 Kc2 Q5a6 Qa7 Rd4 Bd6 Rf4 Bb8 Qd6 Rh1 Bd4 Nf6 Qe5 Ng8 Bf2 Rh2 Rf8 Bd6 R4f7 Bb4 Nef4 Bd2 Bh3 Bc1 Ne6 Bf4 Qd7 Nh6 Rgg8 Qf6 Rgg7 Ng8 Qed5 Qb2 Qe5 Qa1 Bf5+
1q4r1/PR1nrP2/1nr5/2Nqk3/2Q2bPq/1Bb2P2/1bQ2RBK/2n1N2b w - - 0 1 illegal: No possible last move
5nnQ/2B1P1n1/R1q5/Bb2qP1R/3P2q1/1K1NPq1n/Q1n1r3/N1n1r2k w - - 0 1 illegal: No possible last move, all moves rejected
qRn1qR1K/Q7/1N2q3/1P2Pqp1/q4n2/1P2Q1Nb/2bq1P1B/k2B2rr w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 c5 a4 f5 h5 b5 axb5 c4 Qd3 cxd3 h6 fxg4 Bf4 g6 Bc1 Bg7 hxg7 Ke7 Bf4 Kf7 Bc1 Ke8 Kd2 Ke7 e4 Kf6 c4 Ke5 c5 a5 c6 h5 b3 d5 c7 h4 Ra2 g3 Ra3 g2 Nh3 g1Q Ra2 g5 Ra1 a4 Bg2 a3 Nc3 a2 Ne2 Nc6 Rb1 a1Q Nhf4 h3 Rh2 Qe8 Ba3 Nf6 g8Q Na7 Qh7 Nh5 Bb4 Qa4 Bh1 Qg4 Ng1 Qge6 Rg2 h2 Rg4 Bd7 Be7 Nc8 Bf3 h1Q Bd1 Qh3 Rg3 Qhf5 Rc1 Ra7 Nge2 Ra6 Ng2 Nf4 Ne3 Ra8 Qf7 Rh1 Rf3 Ra6 Ng3 Rc6 Ra1 Rc1 Bd8 Qa8 Ra7 Rb1 Rb7 Rc1 Bc2 Rcg1 Rb8 Qa4 Bd1 Qa8 Kc1 d2+ Kb2 d3 Nc4+ Kd4 Nb6 Qa4 Be7 Qa8 Bd6 Qa4 Bc2 d1Q Qh7 Qe1 Bd1 Qea5 Qe7 d2 Qh7 Ne7 c8Q Qa8 Qc1 Nc8 Qf7 Bc6 Qa7 Bd7 Bc2 d1Q Be5+ Kc5 Qe3+ Kb4 Bc7 Qe1 Bd1 d4 Kc2 Ka3 Be5 Nd5 Kd3 Kb2 Bf4 Ka1 Bc7 Qh7 Rf8 Qhf5 Bf4 Qff6 e5 Qd2+ Ke4 Qff7 Nf5 Qfg6 Bh2 d3+ Kf3 Qh7 Ng3 Qhg6 Rf4 Qgf6 Rf5 Nf4+ Kg4 Ng6+ Kh5 Qff7 Rf3 Qff5 Kh6 Nf4+ Kg7 Qc1 Nh5 d2 Rh3 Qb2 Ng3 Qd4 Rh8 Qdd5 Be2 d1B Rf8 Qd2 Kh8 Bc2 Bg4 Bc6 Be2 Bg2 Bd1 Bh3
6k1/N1p3Pr/1b5R/BPb1Kb2/P1b1Pp2/3Qn2q/1R1r1r1n/3BnN1Q w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 a4 b5 Qb3 b4 Qa3 bxa3 Nc3 Bg4 Nb5 Bd7 Nxa7 Bc8 Kf2 f5 Kf3 Kf7 d4 h5 b4 h3 g4 h4 d6 h2 g5 a2 d7 h3 d5 Nc6 e3 Ne5+ Kf2 f3 Kg3 f4+ Kf2 Nf6 d6 Kg8 b5 Nd5 g6 Rh7 Rb1 a1B g7 Bd4 Bc4 Bb6 Ne2 Qh4+ Ng3 Qg4 d8Q Bf5 Qh4 Rd8 d7 Bfc5 Bb3 Nd3+ Kf1 f2 e4 Ne1 Bd2 Qf3 Bd1 Qg4 Bf3 Ne3+ Ke2 f1N Ba5 Qh5 Rb2 Qh6 Rg1 h1B Rg2 Qh5 Rh2 Bg2 Rh1 Nh2 Nf1 Qg4 Kd2 Qh5 Bd1 Bf3 Kc3 Be2 Rb3 Bc4 Rb2 Rf8 d8Q Qf3 Qd2 Rd8 Qe2 Rd2 Qd3 Nhg4 Rg1 h2 Rg2 h1R Rh2 Qg3 Qh3 Qh4 Qg2 Qg3 Rh6 Rh2 Qh3 Rhf2 Qh1 Nh2 Qc2 Be2 Qd3 Neg4 Kc4 Qh3 Kd5 Ne3+ Ke5 N1c2 Qb3+ Bc4 Qd3 Ne1
n3r2B/b1Q4R/1R3n2/KQ1q4/3B2PN/p2qrPPN/P4bpq/5qbk w - - 0 1 legal: proof: b4 d5 e4 dxe4 g3 f5 Bh3 c5 bxc5 f4 Qh5+ g6 Bg2 gxh5 h3 Bg4 hxg4 f3 Rh2 fxg2 Rh4 Nf6 Rh1 Ng8 c4 Kd7 d4 Kc6 Kd2 e5 Kc3 a5 f3 b5 Kb3 a4+ Kb4 a3 Rh2 e3 Bd2 e4 Bc3 h4 Bb2 h5 Nh3 e2 Rh1 e1B+ Nc3 e3 Rg1 e2 Nf4 h3 Ne6 h4 Rc1 h2 Rf1 h1Q Rc2 h3 Ng5 h2 Ba1 Nd7 Rb2 Nb6 Rb1 Rc8 Ka5 b4 Nd5 b3+ Bc3 b2 Ne3 Qd7 Nf5 Na8 Rg1 Bd2 Rgc1 e1B d5+ Kc7 c6 Bc5 Rc2 Qf1 Nh4 Kd6 c7 h1Q Nh3 Bde3 Rd2 Rb8 c8Q Qh2 Qb7 Ba7 Qa6+ Kc5 d6 Rh7 Bh8 Re7 Qb7 Qe6 d7 Rbe8 d8B Nf6 Bc7 Qc6 Be5 Re6 Bc3 Bd4 Re2 Qd5 Re5 Be3 Rh5 R6e7 Rh7 Re5 Bd2 Kd4+ c5 Kd3 Qb4 Ke2 Bc3 R5e7 Bd4 Re5 Rd1 b1Q Rc1 Qd3 Rb1 Re4 Rb3 Qg8 c6 Qd5+ Bc5 R4e6 c7 Bd4 c8Q Be3 Ng5 Kf2 Qc7 Kg1 Nh3+ Kh1 Rb2 Bg1 Rb3 Qd8 Bd4 Bef2 Qc5 Re1 Rb6 Qd5 Qb5 R1e3
1Q4K1/3b1pp1/3N1P1P/B3b3/1RPPb2b/3n2BN/1nQ1b2q/2R1rrbk w - - 0 1 legal: proof: b4 c5 e4 d5 a4 b5 axb5 cxb4 g4 dxe4 Bh3 h5 gxh5 a5 Be6 a4 Bb3 axb3 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 e3 h4 e4 f4 b2 d4 e2 c3 e1B h6 b3 b6 e3 f5 e2 b7 Nd7 b8B+ Qc7+ Kb5 Kd5 h7 Ke4 f6 Nc5 Kc4 Bf2 h5 e1B h6 Na4+ Kb5 Qh2 Kc4 Bd7 Ra2 Ne7 Bg3 Nc6 Be3 Bd6 Bg5 Rhe8 h8Q Nb4 Nh3 Nd3 Na3 b1B Rb2 Bg1 Nb5 Be5 Qc2 Kf3 Bd2 Kg2 Kd5 Ba2 Rb1 Nab2 Nd6 Re6 Qb8 Re7 Bgf4 Bh4 Bg3 Ra3 Rc1 Bb1 c4 Ra1 Qd1 Re6 Ba5 Bc2 Rb1 Re8 Qc1 Bd1 Qc2+ Be2 Rc1 Be3 Rhf1 Bg1 Rb1 Kh1 Rfc1 Be6+ Kc6 Bd7+ Kc7 Re7 Kd8 Na4 Rf1 b2 Rbc1 b1B Rf5 Bf4 Rb5 Nab2 Rb3 Re4 Rb4 Be5 Ke7 Rf4 Kf8 Rf1 Qc3 Nf4 Kg8 Be4 Rc2 Rad1 Rc1 Rde1 Qc2 Nfd3
1B1R2K1/4bP2/1qP1p1N1/1RQ2n1b/rqp1b2N/kb1b4/5P1P/3BnqQ1 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g3 axb4 g4 hxg4 d4 c5 Bb2 b5 Ba3 c4 Bc1 Ra5 c3 Nc6 Be2 Ra7 Bf1 Rc7 Qb3 Ne5 Qa4 Nd3+ Kd2 Rc5 dxc5 Ne1 Qd1 Nc2 Qe2 Rh3 Qe1 Rxc3 Qe2 Rh3 Qd1 Rh8 a4 d5 f6 Kd7 f7 Kc6 a5 g5 a6 b3 Kc3 d4+ Kd2 b2 a7 g3 Ra2 g4 Nf3 b4 a8Q+ Kb5 c6 g2 Bd3 g1Q Be4 g3 Qa7 d3 Qc7 b3 Kc3 d2 Qe1 d1B Qf4 g2 Qfd2 Nh6 Qde3 Qb6 Ne5 Qf1 Ng6 g1Q Bf3 Nf5 Nd2 b1B Rb2 Ka4 Qc5 Qg3 Rg1 Qgb8 Be2 Qd6 Nf3 Ba2 Rb1 b2 Bf4 Bb3 Nfh4 Be6 Rg3 Bd5 Rd3 e6 Rd2 Qe7 Bb8 Be4 Rd8 Qd6 Bg4 Be7 Bh5 Be2 Qc1 B2d3 Bd1 Ne1 Qg5 Bf3 Qg1 Bh5 Qd5 Qa3 Qc5 Ng7 Kd4 Qab4 Ke5 Ka3 Bf3 Nf5 Bd1 Bd6+ Kf6 Re8 Rc1 b1B Rc2 Be4 Rb2 Bbd3 Rb1 Re7 Rb2 Ra7 Rb1 Nh6 Kg7 Nf5+ Kg8 Be7 Ra1+ Kb2 Ra5 Ra8 Rb5 Ra4 Rd5 Ka2 Rd8 Ka3
3q1R2/Pp2R3/2q3PP/BP2N1Nn/B5r1/Q1qb2bK/p1rb2b1/Q1b1k3 w - - 0 1 illegal: No proof kernel
1n1bn3/1N3QQ1/2P1P1q1/2Br1Bnp/PP6/2pb4/NnR3np/K3k1qR w - - 0 1 legal: proof: h4 a5 b4 axb4 f4 e5 h5 exf4 h6 gxh6 c3 h5 Rh3 h4 Rh2 c5 Rh3 b5 Rh1 b3 d4 b4 cxb4 c4 Nd2 Ra5 Nb1 Rc5 dxc5 Qc7 Na3 Qa5 Nb1 Qd8 Kd2 Ke7 Kc3 Kf6 Kb2 Kf5 g4+ Ke4 a4 d5 g5 h5 e3 f5 c6 c3+ Ka3 h3 g6 h2 g7 b2 Ka2 d4 Ba6 d3 Bc4 d2 Bf1 f3 Qc2+ Qd3 Na3 b1N Ne2 d1N Ng1 f4 Nh3 f2 Bb2 Kf3 e4 Nd2 e5 Ne4 e6 Ng5 Nb5 Nf6 g8Q Qg6 Qf5 Ba6 Bc1 Be7 Bd3 f1N Nf2 Bd8 Be3 Nb2 Nd6 Ne8 Bc5 Ne3 Qg7 Ng2 Rac1 Rh7 Bb1 Ke2 Nd3 f3 Nb7 f2 Qff7 f1Q Ka1 Qg1 Rc2+ Kd1 Nc1 Ke1 Na2 Rh8 Rf2 Bc4 Bf5 Bd3 Rc2 Rf8 Qc7 Rf7 Qf4 Rd7 Qc7 Rd4 Qcf7 Rd5
2b1RK2/q1b1p3/BpP1N3/3kbP2/4bP1P/4pq1B/r1N1R3/qr1n2QQ w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a5 Bf4 h5 Bg3 f6 Be5 fxe5 f3 Na6 g3 Nc5 g4 axb4 gxh5 b3 f4 Ne6 Qe2 Nc7 Qd1 Nb5 Nh3 Nd6 Ng1 Nf5 exf5 Ra6 Ne2 Ra7 Ng1 Ra8 Kf2 g5 Kg3 d5 Kg4 Kd7 h4 Kc6 c4 d3 a4 d4 h6 d2 Kh5 e4 Kg6 d3 Kf7 b2 a5 g4 h7 g3 a6 g2 a7 Qc7 c5 Kd5 c6 Nf6 Ra3 Ng4 Ra4 Ne3 Ra1 Bg7 Ne2 g1B Bh3 Be5 Na3 b1B Nc2 Bf2 Qf1 d1Q Rh2 d2 Ned4 Qf3 Qg1 Nd1 Ne6 Bb6 Re2 e3 Ra3 Rd8 h8Q Qb8 Qhg8 Bbc7 Q8g2 b6 Q2h1 Rg8 Ra6 Rg6 Kf8 Qb7 Na3 Be4 Nc2 Rg2 Ra2 Rf2 Ra3 Rf1 Ra1 Nb2 Ra3 d1Q Ra2 Qa1 Ra3 Rb8 a8B Qa7 Bb7 Rb1 Ba6 Nd1 Bb5 Qb7 Ra8 Qba6 Bd3 Rb7 Rb8 Ra7 Bb5 Qb7 Bd3 Ra5 Ba6 Ra2 Ra8 Qa7 Rb8 Bd7 Re8 Bc8
1R2B1Q1/1R3qb1/1p1p3P/1P2Pqqb/n4k1p/2b1N1n1/5Pbb/Q1K3BN w - - 0 1 illegal: No proof kernel
1b2R1R1/1PQ4K/Q2b4/1P3q1P/1kNB2rP/N1rqn1n1/1q2Bqq1/1q1q1b2 w - - 0 1 illegal: Other
2r2b2/r1R1n2P/kN1qb2Q/3b1r2/1n1nPP1K/1B2N3/P1qBnR2/r3Q1n1 w - - 0 1 illegal: No proof kernel
6qR/1r1kN1N1/Qr1n1q2/1R1nr2n/3P4/3rq2P/Bb1qP1P1/bKQ3Bb w - - 0 1 illegal: No proof kernel forced: bxLB
5QK1/QqP1nR2/2rNrR2/5N1b/3n1kP1/b1rr2r1/bP1n1P1n/r3BB2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Kg6 b6 Kg5 c5 a5 g3 h5 c6 d5 c7 e5 b7 h3 Ba6 a4 Qe1 d3 Ke3 d2 Qe2 d1B Qf3 a3 Bc4 h4 Bb5 a2 Rh2 d4+ Kd2 d3 Ke3 d2 Qf7 Rh6 Bc6 Ra3+ Qb3 Ne7 Rh1 h2 Qc3 h3 Qd3 Bh5 g4 d1R Qb3 Re6 Bd5 Rd3+ Ke2+ e3 Kf3 e4+ Kg3 Nbc6 b8Q Nd4 Q3b7 Rac3 Bc6 Qd5 Q7a7 Qb3 Be8 Qb7 Bg6 Rec6 Nd2 Be6 Ne2 Bc4 Rd1 h1R Qba8 h2 Qe8 Bd5 Nc4 Re1 Nd6 h1R Bd2 Rhg1+ Kh3 Rg2 Ng3 Kf4 Ngf5 Rg3+ Kh4 Bg8 Rac1 a1R Bh7 Re2 Be1 Ba2 Qd8 Red2 Bg8 e2 Bc4 e3 Bb5 Rb3 Rc5 Rbc3 Re5 Rdc2 Re6 Rb6 Rf6 Rcc1 Ne4 Re6 Ned6 Rc6 Rd2 R1c3 Rf7 Bg7 Qf8 Be5 Nc4 Bd6 Rc2 Ba3 Ncd6 Rb3 Rc4 Rbc3 Ra4 Rb3 Ra6 Rbc3 Bd2 e1N Bc4 Nec2 Be1 e2 Rb6 Nb3 Ra6 Ke5 Kg5 Ncd4 Rb6 Nd2 Bb5 Bg6 Kh6 Kf4 Kg7 Bh5 Bc4 N2f3 Bd5 Nh2 Bg2 Rdf3 Bf1 Rfe3 Bd2 e1N Kh8 Nef3 Be1 Nd2 Kg7 Ng6 Kg8 Red3 Nc4 Ne7+ Kh7 Rc5 Rc6 Re2 Rcf6 Rc6 Ncd6 Re6 Kg7 Nd5 Kg8 Ne7+
3q3b/1KR3qP/4q2n/3kNrP1/rn5B/P1PbQ1r1/2Bq1q1R/rNq2Q2 w - - 0 1 illegal: No proof kernel
b1R1q3/n2R2q1/1k2rP2/3nP3/1p2BbPr/2rNPQ1N/Q2b4/rq2BK1r w - - 0 1 illegal: No proof kernel
1QbQNkB1/1pB1n1r1/1R3Pb1/qP1qRN2/1qP3b1/r2r4/Pb6/2K1n1b1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 d4 c5 b5 cxd4 Qd2 Nh6 Qc3 Ng8 Qb4 axb4 Kd1 d5 f4 h5 g4 e5 c4 b3 g5 d3 f6 b2 g6 e4 g7 d4 f5 d2 Nc3 b1Q Bg2 h3 Nce2 h4 Bf3 e3 Be4 h2 Bg2 h3 Bd5 Rh7 Be6 Bc5 Nf4 Nd7 Nd5 Qb4 Nc3 e2+ Kc2 d1B+ Kd2 e1B+ Kd3 Ra3 Bf4 Bg4 Kc2 d3+ Kc1 Ne5 Ne4 Qda5 Ne2 Bg1 Nd4 Ne7 Bg8 Nf3 Bc7 Bc3 Rb1 Ne1 f7+ Kd7 f8Q Ba1 Qf6 Ke8 Qd6 Bc3 f6 Ba1 Rb3 Bc3 Nf5 d2+ Kb1 Bb2 Rd3 d1B Qe5 Bh5 Rd6 Bdg4 Rb6 Bg6 Qg3 Bgd4 Rg1 h1Q Qf4 h2 Ned6+ Kd7 Qd2 Qd5 Ne8 h1R Rg3 R1h3 Re3 Rf3 Re5 Bg1 Qh2 Rfd3 Qf4 Bbd4+ Kc1 Bc3 Bf7 Bcd4 g8Q Rg7 Qh8 Ba1 Bg8 Bb2+ Kb1 Qc3 Qd4 Rd2 Nd6 Qe4+ Qd3 Qcb4 Bf7 Qh1 Qd4 Rdd3 Qf8 Qg2 Bg8 Qf3 Ra6 Qg2 Qa7 Qg3 Rb6 Qg2 Qb8 Bc3+ Kc1 Qf3 Qf7 Qe4 Qd5 Qd4 Ne4+ Ke8 Ned6+ Kf8 Ne8 Ba1 Qd7 Qd5 Qd8 Bb2+
2q2q2/Bn3N2/BK1P2n1/2Pp4/rRnbP2r/k2bPb1n/3Qq1RN/3Q1r2 w - - 0 1 illegal: No proof kernel
8/1BN4R/bPK2bb1/2PPNRp1/P1Qr1rqb/r5n1/Q1q1q3/Bnk3n1 w - - 0 1 illegal: No proof kernel
nN3r1q/BBPKQ2n/1qPR1N2/b2Q4/R2b2Pn/1P1p1b1q/qk3r2/7r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 dxc5 e6 Bh6 exf5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 c4 a5 g4 f5+ Kd4 d5 e4 a3 e5 a2 b3 f3 c6 f4 c5 f2 c7 h3 Ne2 a4 Bg2 f1R Qc2 h2 Qd1 f3 Bh3 f2 Bg5 h4 Qc1 a3 Qf4 Nd7 Bf6 Bb7 Nbc3 Nb6 Bg2 h3 Bg5 Nf6 Re1 a1B Rb1 a2 Bf3 Nh7 Rg1 h1Q Ng3 h2 Rc1 Rb8 Re1 Na8 Nh5 Bb2 Bh6 a1Q Re4 Qa2 Qg5 Qg2 Qd2 h1Q Nf6 Qgh3 Be3 Qd6 Bg2 Qb6 Nd7 Be7 Bf3 Rbf8 Nb8 Bd8 Rg2 Q1h2 Qd3 Rh1 Rg1 Rf7 Rd1 f1N Rf4 Ng3 Qc4 Ba3 Ne4 Rhf8 Nf6 Bb4 Bg2 Ba5 Bg1 Nf1 Bf3 Ne3 Re4 Ng2 Be3 Ke7 e6 Nh4 Rf4 Bc6 Ke5 d4 Bg2 Bf3 Bg1 Be2 Bb7 Bf3 c6 Qhb2 Qd5 d3+ Rd4 Qd2 Ra4 Qh6 Re1 Qg7 Ree4 Qh8 Red4 Qg7 Qe4 Be2 Rd6 Qb4 Ba7 Qb6 Qd5 Qg8 Nh5 Rf2 Qc4 Qh8+ Kd5 Bf3+ Qe4 Ke8 e7 Kf7 Ng3 Kg7 e8Q Bf6 Ke6 Be5 Kd7 Bb2 Rd5 Kf6 Qc4 Ba1 Qe3 B1c3 Rd4 Ba1 Ne4+ Ke5 Rd6 B1c3 Qg8 Ba1 Re6+ Kd5 Qe2 B1c3 Nf6+ Kc5 Qe4 Bd4 Rd6 Kb5 Qe7 Kc5 Ra3 Kb4 Ra4+ Kc3 Qd5 Kb2
rqB2NKR/1P1P1r2/qPn4N/3Pkq2/q3n2n/2Rp4/4bBb1/1Qb1rQ2 w - - 0 1 illegal: Other
2nN3r/K1PQb3/1pb4B/n1bb1N2/q1rPbQP1/1P3R2/kB3nrR/4b3 w - - 0 1 illegal: No proof kernel
n1r2R2/3B1q2/1P1B1PRN/1K2q1bb/nP3nb1/2Nr1p2/1P1bQ3/k2b1Qb1 w - - 0 1 illegal: Other
5n2/2krP3/rN3pPr/qrr3P1/R2nR1bQ/2BK4/q1Q1P2b/rn2NB2 w - - 0 1 illegal: Other
1r1b2bQ/P5rP/1Nq2k2/8/QB1P1K1p/1Pb2bnr/N3qR1R/1B2n1bb w - - 0 1 illegal: No proof kernel
3N3r/kn1r4/BR2pK1N/1nPPb2Q/q1P5/q1rPnR2/3Q1B1r/n2r3b w - - 0 1 illegal: Other
kbb1qr2/b2N2Kb/n1P3B1/qP3P2/PQ1nQ1qB/1p6/4qr2/R2RN1q1 w - - 0 1 illegal: No proof kernel
1RKn2Nq/7P/Q2Bq2r/1p2nPn1/1P2b1br/1B4R1/r4kP1/nNr2r1Q w - - 0 1 illegal: No possible last move
n1nbr3/P3BQ1q/3RK2k/1PnN1rq1/8/3b1P1q/1QnRBP1p/n1N4q w - - 0 1 illegal: No proof kernel
1k1Bqnr1/nN1QbQ2/qK1R4/1PB5/pqP2r1r/r6q/P1bP3R/1b2N3 w - - 0 1 illegal: No possible last move
Q1r2b2/qn2P3/P4PBB/1n1pqR1b/nrr4k/1n3Q1N/bNP5/3Rb2K w - - 0 1 illegal: No proof kernel
k1rQ1K2/P2Pbb1R/Qr4q1/B2nBRP1/2Nnp3/1q1N3n/4P1br/n4b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g5 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Qd7 Ba3 Qd6 Bc1 Qd8 Kf2 Kd7 d4 c5 a4 Kc7 h4 f5 a5 b5 d6+ Kb7 d7 e5 d5 b3 d6 g3+ Kf3 g2 h5 b4 h6 b2 h7 c4 Qd4 e4+ Kf2 b3 Qe5 f3 Ke3 f2 Kd4 f1B Kc5 c3 Ra3 f4 Rh4 f3 Rg4 f2 Qf4 c2 Be3 c1N Bd2 Ne7 Qh2 Bg7 Qg3 Qg8 d8Q Nd5 Ra4 Be6 d7 Bf6 Kd6 Qg6 Qd3 Nc6 Nf3 g1N Ne5 Nd4 Na3 b1R Nac4 b2 Rh4 Rc8 a6+ Ka8 a7 Ncb3 Ra5 Bg2 Rc5 f1B Ba5 Na1 Rh6 Rg8 h8B Bf7 Rh7 Nh3 Qa3 Rf8 Nd3 Re8 Bg7 Rh8 Rb5 Rc1 Rc5 b1Q Qa4 Qb2 Qc6+ Qb7 Qa6 Qb3 Rb5 Rb1 Rc5 Nb6 Rf5 Nd5 Bf8 Qb2 Rg7 Nhf4 Be7 Rh2 Rh7 Qa2 Bf8 Nh3 Be7 Bg7+ Bf6 Rb7 Qb5 Qb3 Qa6 Ne3 Ke7 Rb6 Be5 Bf6+ Kf8 Nd5 Rh4 Be6 Rh5 Bf7 Rh7 Be7#
2B4K/3NN1b1/PB3RP1/4r3/n1Rnq1Qr/b1Qbp2n/3Pn1bP/4kr1r w - - 0 1 illegal: No proof kernel
8/Q2rb2Q/r2Rn1p1/nN1P1BpK/Rb3B2/PP2q3/N4Pbn/1b2b1kr w - - 0 1 illegal: No possible last move, all moves rejected
r3n1kb/2Bb1pP1/1RNP2bn/3nQP2/p3Q3/3K1R1n/NPn3rq/6rB w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 Qd2 dxc4 d5 Be7 Qc3 Bf8 Qd4 exd4 Kd2 c5 g4 a5 e4 h5 f4 h3 g5 h2 b6 c3+ Kd3 a4 d6 h4 b7 c2 g6 c4+ Kd2 h3 e5 c3+ Kd3 Bg7 e6 Kf8 Ne2 Bd7 Bd2 c1R Ng1 c2 Be2 Na6 b8Q Nc7 Ke4 d3 Bc3 d2 Bd3 d1N Qb4 Ne3 Nf3 Ned5 Nd4 Qh4 Rf1 h1N Ra3 h2 Rb3 Qg3 Rf2 Rg1 Nc6 c1N f5 Na2 Qd4 Nab4 Rf4 Nc2 Ba5 Rh5 Nc3 Bh8 Na2 Nh6 e7+ Kg8 g7 Rg5 Bf1 Rg6 Rff3 Rg4+ Kd3 Nf2+ Ke2 Nh3 Kd3 Rg5 Bg2 Rg6 Qe4 h1B Re3 Qh2 e8Q+ Kh7 Q8e5 Kg8 Bf3 Ne8 Bc7 R6g3 Rb6 Rg4 Be2 Bf3 Bf1 R4g3 Bg2 Bh5 Bh1 Bg6 Rf3 R3g2
b3Q1Br/2NbP1K1/P4n2/q2nP1Q1/1R1b1B2/r2pnpR1/1N1P1k2/4rb1b w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 gxh4 b4 a5 c3 axb4 Qa4 bxc3 Qc2 Qg5 Qd1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 b5 a4 f5+ Kd4 c5+ Kd3 Kd5 g4 h5 e3 c2 e6 h3 a5 h4 e7 b4 g5 b3 g6 b2 g7 c4+ Kc3 Ke4 Qg4+ f4 Qh5 d5 Ra2 h2 Be2 d4+ Kb4 h3 Kc5 c3 Bd1 Nc6 Qg4 Ne5 Ne2 Nc4 Rg1 h1B Qg5 Kf3 e4 h2 Rg3+ Kf2 Na3 b1B Nb5 Ne3 Bb2 c1R Bb3 c2 Ra4 Re1 Nc1 Nf6 g8Q Bg7 Nc7 Bd7 Kd6 f3 Ke5 Bg2 Rc4 h1B Qe8 Bf1 Rb4 Ba2 Bf7 Bd5 Bg8 Ra7 Ba1 Ba8 Bc3 Bdc6 Ke6 Bd7+ Kf7 Ra6 Nb3 c1N Nc5 d3 Na4 Ra7 Nb2 Na2 Be5 Nc3 Bf4 Ncd5 Kg6 Nh5 Kf7 Bd4 e5 Nhf6 Kg7 Rb7 Ra4 Rb3 a6 Rc3 Rb4 Ra3 Ne6 Qb6 Nc7 Qa5
3nR1Q1/3K2b1/3BnQPP/q3rnn1/3N3p/2r1R2p/B3PPkn/Nq1b3b w - - 0 1 illegal: No proof kernel
rR4nk/2p5/RQ1pbq1B/2qBqPbP/3NP3/1q1Pn2r/7Q/1nK3qN w - - 0 1 illegal: No possible last move
r2nB3/Q2n2qp/pr1q3P/1r2qb2/3br2P/3K3Q/k1PPbBR1/2R1NN2 w - - 0 1 illegal: No proof kernel
RKn3R1/4P3/1r1r3Q/Pbkq1P1N/2Pnn1r1/ppB3qq/Bq3b2/6QN w - - 0 1 illegal: No proof kernel
nk2b3/nbrp3R/3K1B2/P1bN2q1/pN3R2/PPr1BqQP/6Q1/2brn3 w - - 0 1 illegal: Other
4r1qb/3nb3/3RPqPp/3Q1Rb1/PBQ2Nk1/3Pp2b/2B1K1Nn/2rb2b1 w - - 0 1 illegal: No possible last move, all moves rejected
1n1nR3/2N1Pk1p/P3R3/1rn4K/BQ5q/1p2b3/PP1Nn1Br/Q2rrn1b w - - 0 1 illegal: Other
3Q1N2/k3PP2/br2bp2/2r1QP1P/1BNb1p2/b2R4/Rrrnb1Bq/4n2K w - - 0 1 illegal: No proof kernel
4KNBr/1p1nPP1N/n1Pn4/3Q1R2/3n1P2/2Qq2kn/2rb1pr1/BR1r3b w - - 0 1 illegal: No proof kernel
B7/n4rbp/1r1br1QR/PN3Qn1/K1pP1B1P/6n1/kqrnP2q/4N2R w - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 f4 f5 g4 exf4 Bg2 f3 Bh3 f4 Bf1 Bf5 gxf5 Bd6 Nh3 Be7 Ng1 Bf8 d4 Kf7 Kd2 g5 Kc2 b5 a4 c5 h4 g4 f6 Ke6 a5 Kd5 f7 c3 Kb3 c2 Qe1 f2 Qd2 g3 Qd3 f3 Qg6 g2 Ra3 Nc6 Qh6 Ra6 Be3 c1R Bg5 Rb6 Qg7 Rc2 Bd2 Nf6 Qg3 Na7 Rh3 Qd6 Rh1 Ne4 Bc1 Ng5 Nh3 g1B Ra1 Bh2 Ra3 Bg7 Bg2 f1N Be3 Re8 f8Q Re6 Qf2 Ng3 Qg1 Qe5 Bf1 f2 Nd2 Qb8 Ne4 Qe5 Bg2 f1R Qg8 Rf7 Ra2 Qc7 Rb2 Qb8 Ka2 Kc4 Qc8 b3+ Ka3 b4+ Ka4 Qf4 Rb1 b2 Nc3 b3 Nb5 Qb8 Rf1 b1N Rf6 b2 Bf4 Nd2 Rh6 b1Q Nf2 Qb2 Nd3 Qe5 Ba8 Qd6 Na3+ Kc3 Qb1 c4 Ne1 Nh5 Qc5 Qb8 Be5 Rc1 Qg6 Rc2 Bf6 Qg3 Qcf5 Qh3 Qf1 Bd6 Qff5 Ng3 Be5 Qh2 Bf4 Qb1 Rg1 Kb2 Rh1 Ka2 Nb5 Qb2
1R1qrnkq/1R1p1q2/qqPP1nb1/5B2/1n1P1Qp1/2nN1P2/3Q3B/1KbN4 w - - 0 1 illegal: No proof kernel
Q1q3b1/1bp2B1P/1Bb1P3/bp1R2q1/1P2nnq1/3NP2k/3Rq2r/3NnKQ1 w - - 0 1 illegal: No possible last move
1N1nQnq1/4R3/n1B3r1/Qp2K1RP/P1n5/pb2b2k/Pq3P1B/2Nb1q1q w - - 0 1 illegal: No possible last move
1q3bK1/2rQnn1R/7p/4Pnk1/2P3nn/2r5/QBR1PpNP/1r1NnBr1 w - - 0 1 illegal: No proof kernel
3b2QK/5NQb/1rrPBpp1/2B1N3/6b1/PqP3n1/n1r1qRPp/3k1nR1 w - - 0 1 illegal: No proof kernel
6r1/2B1K2n/pP4Pr/Rbk1bBP1/1b1np1QP/Qqr5/qN2Np2/2n1R3 w - - 0 1 illegal: No proof kernel
2B1K2n/r5b1/PR2P1r1/2ppn1Q1/bn3Np1/1PrRq3/kr2QNP1/3B2r1 w - - 0 1 illegal: No proof kernel
bQ4Q1/6qr/q2rP3/1rr1NRn1/3nN3/p3k1PB/Pbp2pPR/2KB3r w - - 0 1 legal: proof: f4 c5 c4 g5 b4 cxb4 f5 d6 c5 g4 c6 g3 hxg3 e6 Bb2 exf5 Bd4 f4 Bc5 dxc5 e4 Ke7 d4 Ke6 Kd2 h5 d5+ Ke5 c7 Kd4 d6 b5 e5 f5 d7 a5 e6 b3 Bd3 a4 Qe1 b2 Nh3 f3 Bf1 f4 Kc2 c4 Kd1 h4 Ng1 c3 Ne2+ Ke3 Kc2 f2 Rh2 h3 Qd1 f3 Nc1 a3 Bc4 f1Q Qd5 b4 Qh5 f2 Bb5 Bg7 Qh4 Ra6 Nd3 Qf8 d8Q Bb7 c8B Nc6 Bc4 Ba8 Ne1 b3+ Kd1 Rh7 Bb7 Nf6 Be2 Ne4 Qb8 Ng5 Qg4 Nd4 Be4 Rd6 Bf5 Bf6 Nd2 Qg7 Bf3 Qa6 Rc1 b1R Ne4 b2 Nd3 Ra1 Ne5 b1R Be2 Rb5 Rb1 c2+ Kc1 Rc5 Bd1 Ngf3 Rh1 h2 Qg6 Ng5 Bh3 Qh6 Qgg8 Qg7 Rg1 h1R Rf1 Rh2 Rh1 Rh5 Bhg4 R2h4 Rh2 Rh7 Bf5 Rf4 Bfg4 Rf5 Bh3 Rb5 Nc6 Rfd5 Ne5 Rdc5 Nf7 Rc8 Bdg4 Rb7 Bh5 Nc6 Be2 Kd4 Kd2 Be5 Rb6 Rh1 Rb5 Bf6 Rf5 Rb5 Bd1 Rc7 Kc1 Ke3 Nh8 Bc3 Ng6 Nd4 Ne5 Rcc5 Rf7 Ba1 Rf5 Bb2#
1r3bR1/2qRQr2/P5Bn/4N1P1/4r3/1PP1pKp1/1bbprQ2/nq3NBk w - - 0 1 illegal: No proof kernel
Q1n5/6rn/P2k3n/2p2BbR/1Bpr1pP1/1NQPRPNq/K4q2/2r1rb2 w - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 g5 b4 a6 b5 axb5 hxg5 bxc4 a4 Kd7 g4 h5 a5 f5 g6 e5 g7 b5 Be2 f4 Bd3 e3 Ba3 e4 Bc1 e2 Rh4 Ba6 Nh3 Kd6 Na3 Nd7 Bc2 Nb6 Bb1 Be7 Ra2 Bg5 Bc2 Rh7 Bb3 Nc8 Bc2 Nh6 g8Q Rg7 Bd3 c6 Bb1 Qb6 Ng1 Rb8 Rh3 h4 Re3 h3 Nc2 h2 Na1 h1Q Qc2 Qh3 Qc3 Rbb7 Qe8 Rbd7 Nb3 Qh2 Qa1 Bb7 a6 Rde7 Nc5 Na7 Qa8 Nc8 Rh3 Re6 Rh4 Qh3 Rh5 Re5 Bc2 Rd5 Nb3 Rd3 Na5 Qbe3 Ba4 Rd4 d3 Qef3 Kd2 e3+ Kc3 Qfg2 Ra3 Qgg3 Rb3 c5 Kb2 b4 Ka2 Bg2 Rb1 Qgh2 Bc6 Bf1 f3 Qf2 Bd2 b3+ Ka3 e1N Ne2 b2 Nb3 Ng2 Bb4 Nh4 Re1 b1R Qc3 Rc1 Bd7 Ng6 Ng3 e2 Bf5 Nf8 Ka2 Nh7 Rd1 e1R+ Rd2 Qfh2 Re2 Qg1 Re3 Qf2+
7n/b1B2p2/2pQrn1K/nNP2Bq1/1n2pP2/1N2R1Q1/rPkP1bq1/4R2r w - - 0 1 illegal: No possible last move
Brrr3n/1Q1P1bNq/2N1p1P1/B3q2R/4nP1K/p2Q3p/1P1bR1q1/2r2k2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kf7 Kf2 Ke6 d4 Kf5 b6 h5 b7 a5 g3 c5 d5 e3+ Kf3 h3 d6 h4 Be2 h2 Bd2 a4 Bc3 a3 Bf6 h3 Nd2 c3 Qa4 c2 Qa7 c1R Qa4 c4 Be5 c3 Nc4 c2 Qb4 Qc7 Bc3 Nd7 b8Q Ndf6 Q4b7 Be6 Ne5 Ne4 Qd8 Bf7 Nc6 e6 Ba5 Ne7 Ba6 Rc8 Ne2 Rd1 Re1 Ng6 Rc1 Rd2 Rcd1 c1R Bc4 Bg7 Bd5 Bc3 Qd7 Rhg8 Qd8 Nh8 g4+ Kg6 g5 Kh5 Ned4 Kh4 Qd7 e2 g6 Rb8 Qd8+ Qe7 Qdd7 Rdc2 Qd8 Bd2 Qdd7 Rgd8 Nf5+ Kh5 Ng7+ Kh4 Na7 Rcc8 Nc6 Rb1 Rc1 Ra1 Rc2 Rc1 Rg1 e1Q Rg5 Nf2 Rf5 Qe5 Rg5 Ne4 Rf5 Bc3 Re2 Bd2 Rg5 Ng3 Kf2 h1Q Rh5+ Kg4 Qb3 Qh4 Qdb7 Qhe4 Qd1 Qc2 d7 Ne4+ Kg1 Kf3 Kh2 Qc5 Qdb3+ Qe3 Qd3 Qe7 Re1 Kf2 Re2+ Kf1 Qc4 Qf3 Qd3 Nf6 Be4 Qh1+ Kg3 Qf3+ Kh4 Qg2 Bd5 Ne4+ Rg5 Qc5 Qb4 Rc4 Ne7 Qec7 Ba8 Rc1 Nc6 Qf5 Qb7 Qce5 Ne8 Qg7 Rh5 Qh7 Ng7 Qe5
1qn4N/BQ1p3R/b3R2n/nqP1Br2/1p3n2/1Pr1N1bK/2pkPP1Q/4r3 w - - 0 1 illegal: No proof kernel
1QK3b1/3p1n2/1NR1qpn1/3P2R1/2BNbP2/r2qBP1Q/2p2Pbb/2qrk3 w - - 0 1 illegal: Other
1qb1nqN1/2p4b/1nP4P/KRb1pBP1/1nQ2r2/prB1kP1Q/N4R2/4n3 w - - 0 1 illegal: No proof kernel
n3n1b1/q1b2q1k/1B1P3p/1RK1n1QB/1N2q2P/1P1Np2P/nnp5/R3r1Q1 w - - 0 1 legal: proof: c4 d5 a4 dxc4 e4 f5 Be2 fxe4 Bd3 a5 Bf1 Ra6 h3 Rh6 g3 Rh4 gxh4 b5 Be2 bxa4 Bd3 Ba6 Bf1 Bc8 Ke2 Kf7 Ke3 Kg6 d4 c5 f4 e5 d5 h6 f5+ Kh7 b3 g5 f6 c3 f7 c2 Ne2 a3 Nbc3 a4 Qd4 a2 Ng3 c4 Rh2 g4 Nce2 a3 Qb2 c3 Ng1 Na6 Qb1 Qf6 Nh1 g3 Bd3 g2 Bb5 Bd6 f8Q Qf7 Nf2 Be6 Qa8 Nf6 Qb2 Ne8 Rb1 a1Q Ba4 a2 Qd8 Nac7 Rh1 Na8 Nd3 Bc7 Ne2 g1N d6 Nf3 Bd2 c1N Rf1 c2 Bc6 Rg8 Rf2 Rg1 Nb4 Re1 Qd4 Qb2 Bd5 a1Q Qg5 Qa7 Ra1 Na2 Bb7 Qba3 Bc8 Bc4 Bg4 Q3a4 Bh5 Be6 Nd5 Qc4 Ba5 Qc6 Bb6 Qc4 Rf1 Qd3+ Kf2 e3+ Kg3 e4 Qc4 Qe7 Kf4 Rb1 Ng1 e2 Nb4 e1N Qd4 Bc8 Ne2 Be6 Qdg1 e3 Nc1 Bg8 Rf2 Qd5 Rd2 Qc6 Rd5 Qf7+ Ke4 Ne5 Kd4 N1d3 Rb5 Nb2 Ncd3 Qe4+ Kc5 Re1
5N2/qRpppkNb/4bbn1/1q1P1Q2/2BnK3/3P1PRq/rPpB4/1r4Q1 w - - 0 1 illegal: No proof kernel
bK4R1/Pq2Q1Pp/1q5p/1q1Pp1Rn/2k3pQ/Bn1r2nN/rB2P2b/5N2 w - - 0 1 illegal: No possible last move, all moves rejected
2q3b1/b4K2/p1RprP1k/pNbP2b1/p1N1PQr1/QB6/P1Rnn3/3b1B2 w - - 0 1 illegal: No proof kernel
6Nq/p1Pn3p/4p2R/4b2K/BrN1b3/n1Pn3Q/QPPr3p/BRq1n1k1 w - - 0 1 illegal: Other
5K2/R3P2Q/1B2n1B1/2qrR1Q1/1pppqnpb/3N1bPN/1nPP4/2n2k1q w - - 1 3 legal: proof: f4 a5 h4 g5 a4 b5 b4 axb4 a5 e5 a6 exf4 a7 g4 Ra3 Nc6 Ra1 Rb8 a8R Rb6 R8a5 Nb8 R5a4 Rg6 R4a3 Rg5 hxg5 bxa3 Kf2 Ke7 e4 Ke6 g6 Ke5 g7 c5 g3 f5 Ra2 d5 Rh6 d4 Rb2 f3 Rh3 h5 Rh2 f4 Bd3 c4 Rb3 a2 Rb4 a1N Qf1 h4 Rg2 h3 Na3 h2 Ra4 h1Q Rh2 Qb6 Ra7 Bb7 Nb1 Qc5 Nh3 Ne7 g8Q Nbc6 Nc3 Ng6 Ne2 Rh5 Qh7 Be7 Ba3 Nb3 Nc1 Nd8 Ke1 f2+ Kd1 f3 Bb4 Rg5 Ba5 Nf4 Bb6 Nde6 Qe1 f1Q Re2 f2 Re3 Kd6 e5+ Kd5 Bg6 Qfg2 Nd3 f1N Re4 Nc1 Qe3 Nd8 e6 Bf6 e7 Nde6 Qf2 Re5 Qg1 Bh4 Qe3 Nh5 Qg5 Nhf4 Re2 Rf5 Rf2 Ke4 Re2+ Kf3 Re4 Rd5 Re2 Na2 Re5 Nb4 Kc1 Ne3+ Kb2 Ke2 Ka3 Kf1 Qgh6 Qf3 Qg5 Na2+ Nb4 Rd8 Rd5 Qc7 Nd3 b4+ Ka4 Nc1 Kb5 Nd1 Rf5 Nb2 Re5 Be4 Qf7 Qc8 Qh7 Nc7+ Kc5 Rd5+ Kc6 Qe3 Ra3 Bf3 Ra8 Qe4 Ra7 Rb5+ Kd6 Qa6 Kd7 Qa5 Kd8 Nce6+ Ke8 Rd5 Kf7 Qc5 Ke8 Ng7+ Kf8 Nge6+
rn1rN3/p1Rpp1p1/K2P2n1/1n3P2/2P1n3/1QNP1k2/Bq1Rbn2/2Q1B1n1 w - - 0 1 illegal: No proof kernel forced: wxDB
2b4B/prrk3r/b3r2N/1RPnbB2/2PQ1Pp1/1R4Pb/q2Np1p1/1K5Q w - - 0 1 illegal: No proof kernel
K1B5/1nBN1Ppk/pb6/3n1nR1/1PP1Pn1p/1pR1Q3/2b1r2p/2QqN1r1 w - - 0 1 illegal: No proof kernel
RnK1r2B/pP1rN3/2BQ2p1/3P1qP1/4NPpn/2p5/p1qn1qQ1/k5bR w - - 0 1 illegal: No possible last move, all moves rejected
1q2NR2/bk1p3B/nr2P3/3pr3/1NbPp1pp/1QRPr1B1/P6Q/r1b4K w - - 0 1 illegal: No proof kernel
7B/4p3/k1pnP2N/2rR1P1n/K1nn1Q1p/1q1p2pP/b1pBP3/R1N2r1Q w - - 0 2 legal: proof: d4 b5 c4 bxc4 b4 a6 b5 g6 b6 Bg7 g4 f5 Bg2 fxg4 Bc6 Bf6 Bb5 Be5 dxe5 axb5 Kd2 h5 Kc3 d5 Kb4 Kd7 f4 Kc6 a4 Kb7 f5 c3 h3 g3 a5 c2 Ka3 g5 Nc3 g4 Qd4 g2 Qc5 g3 Ne4 b4+ Kb3 h4 Qc4 d4 Qc6+ Ka6 Qf6 d3 b7+ Nc6 b8B Be6+ Ka4 b3 Nf2 b2 Qh6 b1N Bd2 Ba2 e6 Ne5 Nf3 g1N Nd4 Qd5 Ng4 Nc4 Nb3 Nd6 Qf4 Nf3 Nc1 Na3 Nh6 Nf6 Ba7 Rhd8 Bd4 Nh5 Bh8 Nac4 Rb1 Ra7 Rb5 Rc8 Rf1 Qb7 Rd5 Nd4 Rd1 Qb8 Rh1 Rb7 Rd1 Rb1 Rg1 Kb7 a6+ Kb6 a7 Ka6 Nb3 Rf1 Nc1 Rd8 Rh1 c6 a8Q+ Qa7 Qb8 Qb7 Rg1 Qb2 Qe4 Rd7 Qh1 Rb7 Qc7 Rb5 Qb8 Rc5 Qc7 Nf7 Qf4 Nfd6 Nb3 Rf3 Ra1 Rf1 Nc1 Qb3+
1n2qNb1/P2B4/bbNKpQp1/r1n1P2q/3q2rR/2PR4/4k1P1/bbB2n1Q w - - 0 1 illegal: No proof kernel
2qrNB2/1np4q/rqnQ2Rb/1N1K2pR/1QP2n1n/3P2PB/b1kP4/5br1 w - - 0 1 illegal: Other
5nnb/bn3PN1/2k2PKQ/2p2r2/q3n1pq/2RB1bPq/2PRQ2q/B4rN1 w - - 0 1 illegal: Other
4N2N/2nQqp2/B1Pqr2k/2r1RK1b/1r1qRPp1/1P4Bn/4q1Pn/bQ5r w - - 0 1 illegal: No proof kernel
2q5/b4b1p/2R1PR1q/2br3B/QBqnp3/N2qn1NP/QKPbPr2/4r1k1 w - - 0 1 illegal: Other
qbB4r/bNkb2P1/p4KR1/2Bbp2n/2nr4/P1rpPRb1/Q4QnP/5N2 w - - 0 1 illegal: No proof kernel
rq3b2/P1Qr1p1k/p3bPq1/P1p1n2q/1Q1RKN2/nP1B4/1N1R3B/bn3q2 w - - 0 1 illegal: Other
1k6/1pn1pNP1/1B1qq2r/rqRB3q/N3Pb2/3pn2b/1P2RPnb/1Q1Q2K1 w - - 0 1 illegal: No proof kernel
3q4/2r1Q3/pb1b1R2/PB1QrpP1/Nb1BbrNK/4n2P/1Rp1bP2/2k3bn w - - 0 1 illegal: No proof kernel
Rbr4k/3rbR2/2rBq3/Q1pr1b1N/2PP3p/Kb1r1p2/n4PP1/1Bn2QN1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 c4 b5 a4 e5 d4 h5 Kd2 c5 Kc2 f5 Kb3 Kf7 a5 Kg7 a6 f4 a7 f3 Rh3 e3 Ra4 e2 Rh1 e1R Ra2 h3 Be2 h2 Ra6 e4 Nh3 h4 Qc2 e3 Qb2 Nh6 Rd6 Bf5 Ra6 Be7 Qc2 Qc8 Bd2 Rd8 Qb2 Rd7 Qa2 Kh8 Ra3 Na6 Nf4 Ng4 Bc3 Ne5 Qb2 Nd3 Qa1 Nc1+ Kb2 b3 Ra4 b4 Rg1 h1R Bf1 e2 Nh3 Qe8 Nf4 Rc8 a8Q Qg8 Nh3 Qe6 Qc6 Rd1 Ra2 e1B Qb5 Bd2 Qa5 Bf4 Nd2 Bb8 Ne4 Rd3 Ng3 Rd5 Bd2 Rd7 Kb1 b2 Nh5 Rd5 Kc2 b1B+ Kb2 b3 Bf4 Nb4 Ka3 Bc2 Bd6 Rc6 Rb2 Nba2 Be2 Rc8 Rd1 Rf1 Ng1 Re1 Bf1 Ree5 Re1 Bd1 Re4 Rc6 Rf4 Re4 Rc2 b2+ Rc3 b1R Be2 Rd2 Bd3 Rb7 Bb1 Rd7 Re3 Bb3 Re1 Bh7 Rf7 Ree5 Re4 Rd3 Ref4 Rg5 Rf8+ Rg8 R4f7 Bf5 Rc8 Ba7 Ra8 Bb8 Qb2 Bg5 Qe2 Rgc8 Qf1 Be7
3B4/1Npn1b2/4RnP1/1QP1np2/nKPr1qB1/1Np2PRQ/1br3r1/rn4k1 w - - 0 1 illegal: Other
nb1B2K1/1b1p4/n2PQP1P/2b3pQ/1qB1n1P1/1r3qRp/1N1rnR2/kbN5 w - - 0 1 illegal: No proof kernel
Nn5Q/B1p2Prb/3p1q2/1pP3Nn/3PBR2/2krqr1q/Pbp1K1Q1/R5b1 w - - 0 1 illegal: No proof kernel
1Qnrk2B/Pn1br1pr/1P2qb2/4p1PR/1p1bPbR1/K2Q2N1/pNb1B3/8 w - - 0 1 illegal: No possible last move, all moves rejected
2n1Qb2/b2Q2qN/1npn1r2/KrP3PB/3pppRn/3P1k2/2R1nPb1/5N1B w - - 0 3 illegal: No proof kernel
1n3qr1/K1p2k2/bPN2b2/2pR1pbr/2Q2Bnp/6Qb/1PP1NP2/Rb1B2r1 w - - 0 1 illegal: Other
bN2B3/b1p5/r3R1pp/b1kNBqP1/3np1P1/K1q4Q/1nPQP1bR/1r5n w - - 0 3 illegal: Other
2K2q1B/p2P3P/N2QQb1b/P2N4/n1prr1p1/1nPB3k/1p3qR1/Rb1q3q w - - 0 1 illegal: No proof kernel
k2q1rnN/3nN1nR/pn1bp1P1/BpQ1b3/PP2Pr2/1b1K4/1p1Q2R1/4qB2 w - - 2 3 illegal: No proof kernel
b1BK1n2/2ppP1p1/qQ2bp2/BN2n1b1/2Q1br1k/2NR1q2/2PRrPPq/8 w - - 1 3 legal: proof: d4 e5 h4 exd4 b4 Qxh4 b5 Qh2 b6 axb6 Nh3 b5 Ng1 b4 Kd2 Ke7 Kd3 Kf6 Kc4 h5 Kd5 b5 e4 h4 a4 d3 a5 d2 e5+ Kg5 a6 h3 e6 b3 a7 b4 Ra2 b2 Qe1 b3 Ra6 Nf6+ Kd4 Nh7 Kd5 Bb7+ Rc6 Be7 Be2 Re8 Nc3 b1B Qf1 b2 Ba6 Ba2+ Qc4 b1B Nb5 Nf8 Ke4 Kh4 Ne2 d1Q Nec3 Bg5 Bd2 f6 Re1 Qd6 Re3 h2 Rd3 h1Q Be1 Qhh2 Kf5+ Bf4 Rc5 Nc6 Rcd5 Qf3 R5d4 Rab8 a8Q Ne5 Qa7 Ba8 Bc8 Qa6 Qb6 Bb3 Rd2 B1a2 R4d3 Ng4 Qcc6 Bd5 Qc4 Bg5+ Qf4 Nh7 Kg6 Nf8+ Kf7 Bdc6 Qc4 Be4 Qbc6 Rb6 Qb7 Rd6 Qb8 Rd4 Qb6 Rd8 Ke7 Ne5 Bb7 Rb8 Bc8 Bb3 Kd8 Ba2 Qa7 Rb6 e7 Rc6 Qcc5 Be6 Qab6 Ra4 Qd5 Rcc4 Qdd4 Rcb4 Qc4 Rb1 Rd4 Rd1 R2d3 Rd2 Rd5 Re2 Rd2 Qa7 R5d3 Qa6 Nb1 Ng4 Qcc5 Re3 Rd1 B4d5 Ba5 Rf4 Qc4 Be4 R1d2 Re2 N1c3 Ne5
4NR2/N3n1pP/rk1nBQPp/p5b1/1bR4r/PPr1r2q/bp6/B4bQK w - - 0 1 illegal: No possible last move, all moves rejected
kB4N1/1bQ1Q1pq/2p2br1/p1nRp1P1/2P4r/b1RnBnP1/P2n4/2b1N2K w - - 0 3 illegal: Other
2N1B1b1/2Bp1n1q/1rpPP3/r1RKb2p/R5Nk/pp1nQ2P/1Pb3r1/5Qn1 w - - 1 3 illegal: No possible last move, all moves rejected
1R3q2/2P1rp2/4qPN1/bQpb2pP/4nRKp/kB2pnPn/1N1Q3B/6br w - - 0 1 illegal: No proof kernel
3Rq3/pb1Br1Q1/2q5/Pr1pPp1P/2NQN2n/4bp2/1nn1pP1K/2k1BRb1 w - - 0 1 illegal: No possible last move, all moves rejected
q1RqNR2/2ppbb1Q/3p2P1/rP2B3/1p2bp1r/1Q1P2n1/rP1N4/1nKBk3 w - - 0 1 illegal: Other
2B1K1k1/1b1r2p1/bpq1P1rP/1Rn1QnN1/p2N1p2/Pn4Qp/RP3b1B/q7 w - - 0 1 illegal: No proof kernel
1RR2n2/Qppbr2p/1Pn1n3/1B4b1/K1QBq3/p1Pb1bPN/3NPp2/2rk4 w - - 0 1 illegal: No proof kernel
b1rQ4/p5pp/NB2R1q1/1np3BN/1qR1np1Q/k5pP/P2K1pPP/b6r w - - 1 3 illegal: Other
4kq2/b5p1/1q2r3/P2Nb2K/P2rq1r1/1q1BR2P/1bRnNP2/2Q1NR2 w - - 0 1 legal: proof: c4 a5 g4 c5 b4 f5 Bg2 b5 Bf1 h6 e4 fxe4 Qb3 Ba6 Qd1 Nc6 bxa5 b4 d4 Bb5 Bg5 hxg5 cxb5 cxd4 Qd2 Ne5 Qd1 Nf7 Nc3 Nd6 Nb1 Nf5 gxf5 Rh5 Kd2 Rh6 Ke1 Rh8 Ke2 d5 a4 e5 b6 d3+ Ke3 d4+ Kd2 e3+ Ke1 d2+ Ke2 e4 b7 g4 b8R g3 f6 g2 h3 b3 Rh2 b2 Rc8 Bc5 Rh1 Ba7 Rh2 Rh4 Rc4 Rg4 Qc2 d1R Nf3 g1B Rh1 Bh2 Nfd2 Be5 Nc3 b1Q Ra2 Qbb6 Bg2 Qe7 Re1 Qf8 Nd5 Rd8 Bf1 Rd6 Nf3 Re6 Qc1 Rd3 Rac2 Rd1 Bg2 d3+ Kf1 d2 R4c3 e2+ Kg1 e3 f7+ Kd8 Rf1 Nf6 Ne1 Ne4 Ra3 Bb2 Kh2 Kd7 Nd3 e1B Bh1 Nc5 Be4 e2 Bg6 Ne4 Bh7 Qg8 f8N+ Ke8 Ng6 Qf8 Ngf4 Be5 Qb2 Rb1 Qc1 d1Q Rb3 B1c3 Ne1 Bb2 Re3 Nd2 Bd3 Ra1 Rc3 Qdb3 Rc2 Rb1 Nf3 e1Q Re2 Qf7 Bf5 Kf8 Qd1 Rh4 Kg3 Nc4 Bg6 Qeb4 Re3 Ke8 Ne1 Qf8 Qd2 Rd1 Qc1 Rd4 Bd3 Qf5 Kf3 Qe4+ Kg3 Rhh6 Kg4 Rhg6+ Kh5 Nd2 Ne2 Rg4
q1KNB2k/5PbB/Q2P3b/Pbb2n1N/4Rb1P/3n4/rBq4b/qN4r1 w - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 Qa4 fxe4 Qd1 d5 cxd5 h5 g4 Rh7 a4 Bf5 g5 Bg4 Ra2 Bc8 Rb2 Rh8 Rb3 Be6 Rg3 Bd7 Rg4 Bc8 Bb2 hxg4 Bc3 Qd6 Bxg7 Qd8 Ke2 Kf7 Ke3 e5 f4 b5 h4 c5 d4 b3 f5 b2 d6 c4 f6 c3 d5 b4 d7 c2 d6 c1B+ Nd2 b1Q Nh3 g3 Qe1 b3 Qe2 b2 Qa6 g2 Qb7 g1B+ Nf2 Bh2 Bb5 Qc2 Be2 b1Q Qc7 Na6 Ng4 Nb4 Bb5 Qa1 Qa5 Nh6 g6+ Kg8 Qc7 Nd3 Qa5 Ba6 Bc6 Bb5 Qa6 Qc8 d8N Nf5+ Ke2 e3 Kf3 e2 Ke4 e1B Kd5 e4 Nb1 e3 Be8 Bf2 Re1 Qb7+ Ke6 Rh6 Bh8 e2 g7 Rh5 f7+ Kh7 Qc6 Bcf4 Qa6 Bc5 g8B+ Kg6 Nf2 B8h6 Ng4 Rg5 Nf6 Rg1 Nh5 Ra7 Bc3 Qa8 Bb2 Bg7 Bh7+ Kh6 Rd1 e1B Rc1 Bed2 Re1 Bgc3 Re4 Bde3 Nf6 Kg7 Nh5+ Kh8 a5 Rb7 Bd7 Bg7 Bc6 Rb6 Kd7 Bh6 Kc7 Bef4 Be8 Bc4 Be5 Rb2 Kd7 Ra2 Bb2 Bb5+ Kc7 Qd5 Kc8 Qa8+
1Br5/1n3qN1/n1R3P1/NPn1q2R/1r2P1n1/q1nk4/P1r2n2/R2NQ1bK w - - 0 1 legal: proof: f4 a5 h4 b5 b4 e5 h5 exf4 e3 d5 Bc4 Bd7 h6 gxh6 c3 h5 bxa5 b4 Bb3 h4 c4 Bb5 cxb5 Bd6 Bc4 dxc4 Ke2 Be7 Ke1 Bf8 Kf1 Kd7 d4 Kd6 g4 Kd5 Kg2 Ke4 a6 f5 g5 c5 g6 h5 a7 b3 d5 c3 d6 f3+ Kh2 c2 d7 f4 Nd2+ Kd3 e4 f2 Qe1 f1R Nb1 h3 Qa5 h4 Nd2 b2 Rb1 f3 Ra1 b1N Qc7 f2 Ndf3 c4 Bb2 c1N Qc8 c3 Qc7 c2 Qa5 Na6 Ng5 Qf6 d8N Rc8 a8R Bc5 N5f3 Ne7 Nf7 Nc3 Rb1 Nf5 Nh6 Nb3 Qb4 c1Q Nd4 Nd6 Ng8 Nb7 Nge2 Qe5+ Ng3 Ba7 Ra1 N3c5 Rb1 Rc7 Ne7 Rhc8 Ba1 Qa3 Nc2 Rg1 Qa4 f1Q Qb4 Qf7 Ne3 Rc1 Nd1 Rc2+ Kg1 Rd7 Ngf5 Rd4 Qa5 Rb4 Nc6 Bb6 Bb2 Ba7 Ra1 h2+ Kf1 h3 Bc1 Rg2 Bf4 Rc2 Ng7 Bb6 Rg1 h1N Rg5 h2 Rh5 Nf2 Kg2 Ng4+ Kh1 Qef6 Bb8 Ba7 Qc7 Qe5 Na5 Bb6 Qe7 Ba7 Qf6 Bb6 Qf2 Ba7 Kg2 h1N Kg1 Bb6 Qe1 Nhf2 Kg2 Nh3+ Kh1 N5a4 Ra7 Bg1 Ra8 N4c5 Ra7 Nd6 Rc7 Ndb7 Rc6 Nhf2+
4N2Q/2rq1q2/R1qP2r1/1n3Bqr/nPBn1B2/3KR3/3P1Pk1/r1Rb3q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 gxh4 e5 Bg7 c3 f6 Na3 fxe5 Nc4 dxc4 Ke2 e4 Ke1 Bd4 cxd4 Bg4 Ne2 Bf5 Ng1 Bc8 Ke2 Kf7 g4 Kg6 b4 Kg5 b6 Kf4 g5 e5 d5 h5 d6 c5 b7 a5 g6 c3 g7 a4 Qc2 e3 Qa2 h3 Qa3 c4 Qb3 h4 Nf3 a3 Rb1 h2 Ne1 a2 Qb2 a1R Qc2 h3 Qa2 c2 Bb2 c1N+ Kd1 e2+ Kc2 c3 Nd3+ Kf3 Qa3 e1Q Qa6 e4 Qa7 e3 Be2+ Kg2 Ne5 Ne7 g8B Qd7 Bh5 e2 Rf1 h1Q Nc4 h2 Bhf7 Rh5 Qa3 Nd3 Qa5 Nc5 Nb6 Nf5 Qa3 Nba6 b8R Na4 Be8 Nd4+ Kd3 c2 Bg6 c1R Qc3 Nc7 Nd5 Ncb5 Nc7 Qf7 Rb7 Bg4 Ra7 Qg1 B6h7 h1Q Ne8 Rb8 Qc8 Rc7 Bf5 Qc1 Ra6 Qc6 Rfc1 e1Q Qd8 Qfd7 Bc4 Qee7 Rc3 Qg7 Rbc1 Bd1 Qf6 Qg5 Qh8 Qe1 Ra3 Qee7 Rac3 Qf7 Rb3 Nf3 Be5 Nfd4 Bf4 Ra8 Nf6 Rg8 Ne8 Qc5 Ke4 Rg7 Re3 Qcc6+ Kd3 Rg6
2b2r1n/1Rq3P1/Bpr1n1Bb/1N6/1Kr1bkq1/3QNP2/P2r2Pn/2B4N w - - 0 1 legal: proof: c4 a5 b4 axb4 h4 g5 hxg5 d5 cxd5 e5 Rh2 Nf6 Rh1 Ng8 e4 Nd7 d4 Nb8 Nd2 exd4 e5 f5 Rb1 Bg7 Rb3 Bh6 Re3 Bf8 Re4 fxe4 d6 Kd7 g6 Ke6 d7 Kf5 e6 h5 e7 c5 e8B e3 Nh3 b3 Nf3 b6 Ke2 b2 Kd3 b1B+ Kc4 e2 Nfg1 e1N Qc2+ d3 Qa4 h4 Nf4 h3 Kc3 h2 Qc2 c4 Qe2 d2 Ngh3 d1Q Ng5 Be4 Bf7 Rh6 Qh5 Nf3 Bd3 Ne7 Qh4 Qc7 d8N Nd7 Nde6 Nc5 Kb4 c3 Ngh3 c2 Nd5 Rb8 Re1 h1R Qg3 Nh2 Ba6 Qg4 Qd3 Ke5 Re2 Rd1 f3 Rd2 Nd4 Ne6 Ne3 Rh4 Re1 Bh6 g7 Ng6 Nb5 Nh8 Nf2 Kf4 Nh1 Ra8 Bg6 Rb8 Bb2 c1R Re2 Rc6 Bc1 Rd1 Rc2 Rd2 Rc4 Rh5 Rd4 Rhc5 Rd7 Rc4+ Kb3 Qe5 Rb7 Qc7 Ka3 Bd7 Kb3 Rf8 Ka3 Bc8 Kb3 Rcc2 Kb4 R2c4+
N3r3/rqP1P2r/3r1PK1/5NRB/R1b2P2/1p1Q2N1/1qbbn3/rkq2R2 w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 e5 b4 axb4 d5 e4 d6 cxd6 Ba3 d5 Bc1 d4 h3 g5 Bf4 Nc6 Bd2 e3 h4 g4 Bh3 exd2+ Kf1 Ne5 Kg2 Qa5 Na3 Nf7 Nb1 Ng5 hxg5 Bh6 Kh2 Qb6 Bf1 Qd8 Kg2 Bf8 Kg3 Ke7 Kh4 Kd6 Kh5 Ke5 f4+ Ke4 c4 d5 a4 b5 f6 b3 e3 d3 g6 b4 c5 g3 g7 b2 c6 g2 a5 b3 c7 d4 a6 Nh6 g8N Nf5 a7 Ng3+ Kg5 h5 Qe2 d1Q Nf3 g1R Qh2 d2 Na3 b1Q Ne1 h4 Ng2 h3 Nc4 d3 Na5 Qdc1 Nh4 d1R Kg6 d2 Be2 Ba6 Nf5 Qd5 Nc4 Bb4 Nb6 Qbb2 Ra5 Bc4 Nge7 Qb7 Bh5 Kd3 e4 Kc2 e5 Ne2+ Ng3 Rhe8 e6 Kb1 Rg5 Bc3 Qf2 h2 Qe3 Rgf1 Rg1 h1R Nef5 Rh3 e7 Ba5 Bg4 Rh7 Qf3 Rad8 a8R Rd6 Qc3 Rde1 Rh1 d1B Bh5 Bc2 Qd3 Bd2 Ra4 Rd1 Na8 Ra6 Qd5 Ra7 Qe4 Be1 Qf3 Rd6 Qd3 Bd2 Rg1 Rf3 Rf1 Re3 Ra3 Re5 Ra4 Rea5 Rb4 Ra2 Ra4 Ra1
q1bnN2q/R2qB2P/3n1bK1/2R1pqN1/b1P3k1/3nP3/RPQbq3/1N6 w - - 0 1 legal: proof: d4 a5 f4 b5 a4 bxa4 f5 e5 d5 Ra6 d6 Rb6 Kd2 cxd6 Ke1 d5 Qd2 d4 Qd3 Qf6 Qd1 Qd8 g4 h5 Be3 g5 Bd2 Re6 Bc1 f6 fxe6 f5 Bg2 f4 Bh3 Rh6 Nf3 Rf6 Ng1 Rf5 gxf5 Qb6 Bg4 hxg4 Be3 Qc7 Bc1 Qd8 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kd3 a3 c4 f3 h4 g3 h5 f2 h6 f1Q h7 a4 e7 a2 e8R g2 Qc2 a3 Qd1 g4 Qb3 g3 Qd1 Be7 Qe1 Nc6 Qd1 Qd7 Rh2 Nd8 Be3 Nh6 Qd2 Nhf7 Rh3 Nd6 Nf3 g1B Bf4 g2 Nh4 Be3 Qc2 g1N Rh2 Bd2 Rh8 Nh3 Bg3 Kg5 f6 Kg4 f7 Bf6 f8N Qf4 e3 Qff5+ Ke2 Nf2 Nf3 Nd3 Bh4 Nc1+ Kf2 d3 Ne6 d4 Re8 Ba5 Re7 d2 Ng7 d1B Ne8 d3 Bg5 d2 Rh6 Nd3+ Kg2 Bc3 Bh4 Ba5 Ng5 Bb4 Qc1 Bb3 Qc2 d1Q Rg6 Bd2 Rgg7 Qa4 Rc7 Qad7 Rc5 Ba4 Kh2 Kh5 Kg3 Qe2 Nc3 Qc6 Ra7 Qcd7 Rh1 a1Q Nb1 a2 Rc1 Ne1 Rd1 Ba5 Rd3 Bd2 Ra3 Nd3 Ne6 Bg7 Be7 Bh8 Ng5 Bf6 Nc3 Qad1 Nb1 a1Q Ra2 Qdf1 Nf3 Qh1 Ng5 Qa8 Qc1 Qac6 Raa5 Qcb7 Bf8 Qg7 Be7 Bad7 Qc2 Qc6 R2a4 Qh8 Ra6 Kg6 Kh4 Qa2 Ra3 Qa8 R3a5 Qa4 Ra7 Q4c6 Ra1 Qcb7 R1a2 Ba4 Qc3 Qbd7 Qc2 Qff1 Rac7 Kf5 Ra7 Qef2+ Kh5 Q2e2+ Kh6 Kg4 Kg6 Qff5+
r5Kn/PBP2Bpr/R1q1P1q1/1k2P2q/2R5/3BRrQ1/1np5/1b2n1bN w - - 0 1 illegal: No possible last move
R3b3/r3QB1p/5PN1/PnPrqNrR/k7/6rp/rqKn1N1P/b4R2 w - - 0 1 legal: proof: d4 a5 e4 f5 exf5 c5 b4 axb4 Bh6 gxh6 dxc5 h5 Ba6 h4 Bd3 Kf7 Bf1 Ke8 Kd2 b5 f4 d5 g4 Kd7 c4 Kc6 a4 e5 g5 d4 f6 e4 g6 e3+ Kc2 b3+ Kb2 h3 f7 b4 a5 e2 f5 e1Q g7 d3 Qd2 Nf6 g8R Ne4 Ra2 Qd6 Na3 Bg7+ Qc3 d2 f8Q d1R Bd3 Nd2 Nb5 Qee5 Nf3 Bd7 Ra4 Be8 Ng5 Na6 Rf1 Ra7 Qe7 Nc7 Ne4 Bf6 Rf8 Rg8 Nf2 Rg3 Bc2 Qd3 Nd6 Nb5 Rh8 Ra1 Bb1 Ra3 Ba2 Rg5 Kc1 b2+ Kd1 Qf3+ Kc2 b1R Qb2 Rd1 Bb3 Ra2 Rf8 Qeg3 Rh8 Bc3 f6 Qe5 Nf5 Bd4 Rh1 Rdg1 Rf8 R1g3 Rf1 Ra1 Ba2 Qa3 Bb3 Ra2 Rh8 Bd7 Ra8 Be8 Qd6+ Kb7 c6+ Ka6 c5 Bc3 Bf7 b3+ Kd1 Bd4 Qe7 Bc3 c7 Bd4 Qa1 b2 Kc2 b1R+ Qb2 Rd1 c8N Nd6 Qe6 Nb3 Nce7 Kb5 Ng6 Bc3 Rh4 Rd5 Rh5 Ka4 Qe7 Nb5 Rh6 Nd2 Rh5 Ra1 Qc1 Ra2+ Kd1 Bb2 Kc2 Ba1+ Qb2 Qaxb2+
q2N1k2/3PN2r/P1nq1B1r/NK6/2r1n1p1/P3q1QR/nb3qPp/RR6 w - - 0 1 legal: proof: f4 b5 c4 a5 b4 e5 bxa5 exf4 e3 d5 Kf2 dxc4 Ke1 b4 a3 c3 Bc4 Ba6 Qf3 Bc8 Ba2 b3 Qd1 bxa2 h4 g5 h5 Bb7 Rh4 Be4 Rh1 Bg6 hxg6 Bd6 Qh5 Bb4 Qd1 Bf8 Ke2 c5 d4 f5 Kd3 h5 Kc4 f3 a6 h4 g7 f4 e4 g4 e5 f2 e6 f1Q+ Qd3 c2 d5 h3 d6 f3 e7 h2 Nd2 f2 Qe2 Ra7 Ndf3 Nc6 Ng5 Rh6 Be3 c1N Bd4 Qe1 N5f3 f1Q Ne5 Qa8 Nf7 Nf6 g8N Bg7 Qd3 Qe3 Ne2 Qff2 Kb5 c4 Nd8 Ne4 Bf6 c3 Nd4 c2 Nb3 Bh8 Rb1 a1Q Na5 Qad4 Ra1 Na2 Rhb1 c1R Qb3 Kd7 e8R Rc4 Ne7 Bg7 Rh8 Rc7 Rh7 Ke8 Qc3 Qdd3 Qe5 Kf8 Qg3 Qd1 Nf5 Rf7 d7 Qd6 Ne7 Bh8 Bh4 Bb2 Bf6 Rg6 Rh5 Rh7 Rh3 Rgh6
3kNb1B/2q2p1n/rPnP2p1/1Nq5/pRP1PBBr/4K2b/5n1r/5Q1N w - - 0 1 legal: proof: g4 c5 c4 d5 a4 h5 gxh5 e5 f4 exf4 Ra3 d4 Rc3 dxc3 b4 b5 axb5 cxb4 Kf2 a5 e4 c2 h4 a4 d4 b3 d5 f3 b6 b2 h6 Ra7 h5 Rb7 h7 Nc6 d6 Na7 h6 Nc6 Bh3 Rb8 Ne2 Nf6 Na3 b1R Nb5 Qc7 Bf4 c1N Ng3 Ra8 Rg1 Bd7 Nh1 Kd8 Rg2 Ra6 Rh2 Rg8 h8N Rb2+ Qe2 Bc8 Ng6 Rh8 Ne7 g6 h7 Be6 Nf5 Nd3+ Ke3 f2 Ng7 f1Q Ne8 Qe1 Kf3 Qg1 Qf1 Qc5 Rd2 Ra2 Rb2 Bc8 Rb1 Rh2 Rb4 Nf2 Be6 Qh5+ Ke3 Qg5 Bd5 Bh3 Be6 Qe5 Bg4 Qc5+ Ke2 Rg8 Kd2 Rg7 h8B Rh7 Ke2 Rh4 Kd2 Nh7 Ke2 Qh5 Ke3 Qc5+
2NB2n1/2rP1q1R/k1n2Bb1/bp5b/q2p1RR1/2PP2P1/1pQr2K1/Bb6 w - - 0 1 illegal: No proof kernel
3Bk3/P1PNP2r/5K2/p1rN4/p7/Qnq3NB/pn1qP1b1/R1brrB2 w - - 0 1 illegal: No proof kernel
NR1R1N2/1r5p/Kb1QPBb1/b2P2PP/4n1k1/N2q4/p1q1q1pb/R1n5 w - - 0 1 illegal: No possible last move, all moves rejected
2b1B3/1RR2R2/BKP5/QpqP2p1/3b1q2/1bBn1Pb1/bP3pk1/1N1n2b1 w - - 0 1 illegal: No possible last move, all moves rejected
3bN3/1p4Bp/2B1rq2/q2Pb1pk/KBP2r2/1P1PQb2/2b1R1b1/N3N2b w - - 0 1 illegal: No proof kernel
r1B1Nb2/npN5/1Pb1PQ1B/5nqP/2BpRr1k/2p3q1/2p1KP2/4r2N w - - 0 1 legal: proof: e4 e5 b4 h5 g4 a5 gxh5 f5 d4 Nf6 a4 Nh7 b5 Nf6 c3 Ng8 Qb3 Qf6 Qb4 axb4 Ra2 bxc3 Re2 Kd8 dxe5 Qe7 e6 Ke8 e5 Qd8 Re4 fxe4 h4 Ke7 b6 g5 a5 d5 h6 c5 a6 g4 h7 c4 h5 c2 a7 e3 Na3 d4 Rh4 g3 Re4 e2 Nb5 g2 Nc7 Qd5 Ne8 Bd7 Bh6 Bc6 Kd2 e1R Ne2 g1Q Ng3 Qd6 Nh1 c3+ Kd3 Qg5 Be2 Kd8 e7+ Kd7 Bf1 Ke6 Be2 Kf5 e6 Ra1 Bf1 Qdg3+ Ke2 Rb1 Nd6+ Kf6 e8B Ne7 Bd7 Nf5 Bc8 Rg8 h8Q+ Rg7 Qg8 Rf7 Qh7 Na6 Qg8 Nc7 Qh7 Nb5 Qh8+ Ng7 Ne8+ Kf5 Re3 Kg4 Re5 Rf4 Re4 Nf5 Qf6 Rb8 a8N Kh4 Nac7 Na7 Nd5 Ra8 Ndc7 Rb4 Ke1 Rb5 Bc4 Rb1+ Ke2 Re1+
Q1Rr2b1/1q1nb1qN/2b1r1pP/2N3p1/3P2pB/P2q4/3Kp1PB/N4B1k w - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 axb4 e4 f5 d4 h6 d6 Nd7 Qg4 Nb6 a3 Nd5 exd5 fxg4 Ra2 Kd7 Re2 Ke8 Re5 Kf7 Rh5 Ke8 Rg5 hxg5 f4 Kf7 h4 Kg6 h5+ Kf5 h6 b5 d7 e5 d6 c5 Nc3 e4 Na2 e3 Rh5 e2 Rh3 c4 Nc3 b3 Kd2 b2 Rf3 b1Q Na2 c3+ Ke3 b4 Rf2 g6 Nf3 c2 Kd2 b3 Nb4 b2 Na6 Qf6 d8Q Be7 d7 Qg7 Nc5 Ra6 Ne1 Bb7 Qa8 Nf6 d8B Bc6 Ba5 Nd7 Rf3 Rd8 Rc3 Qa2 Bc7 b1B Bb2 Qag8 Rc4 Q7h7 Bc3 Ba2 Bd6 Qgg7 Bb4 Kf6 f5 Rb6 Bh2 c1Q+ Kd3 Ra6 Nc2 Qb1 Kd2 Qb3 Na1 Qd3+ Kc1 Bb3 Be1 Rb6 Rc2 Bg8 Bh4 Qf7 Rb2 Qhg7 Rb4 Ra6 Rb8 Qfb3 Rc8 Qb7 Ncb3 Kf7 f6 Ke6 f7 Kf5 f8N Ke4 Nc5+ Ke3 Nh7 Rb6 Be1 Ra6 Bd2+ Kf2 Bdf4 Rb6 Bhg3+ Kg1 Bh4 Kh1 Bh2 Bcd5 Qa6 Re6 Qa8 Qc4+ Kd2 Bc6 Qa4 Qcb5 Qa8 Qd3+
1NK5/RP4NB/1PPB1N2/pnp2qb1/2n2B2/1p1P1Q2/kpp2br1/b6r w - - 0 1 illegal: Other
K2n4/2PnBQ2/p6r/3pprPB/pq1P1q2/P1N1p3/1r2RRR1/kb2B3 w - - 0 1 legal: proof: e4 b5 c4 c5 h4 g5 b4 gxh4 Nc3 f5 Na4 fxe4 Nxc5 Ba6 Na4 bxa4 c5 Bg7 Rb1 Ba1 Rxa1 Bc8 Ke2 Kf7 Ke3 Ke6 Kd4 d5 f4 h5 g4 a6 f5+ Kf6 g5+ Kf7 a3 e3 b5 h3 f6 Ke6 f7 h2 f8B h4 b6 h3 c6 Rh6 Kc5 Ke5 b7 Qc7 Ne2 Nf6 Nc3 Bf5 Qh5 Bb1 Rg1 h1Q Rg2 h2 Be2 Qe1 Ra2 h1R Qf7 Rf1 Bh5 Rf5 d3 Qd6+ Kb6 Kd4 Rae2 Qf4 c7 e5 Be7 Nc6 b8R Nd7+ Kb7 Qeh4 Bd2 Nd8+ Kc8 Ra7 Rb2 Rb7 Be1 Qhg4 Rbd2 Rb2 Ref2 Qd1 Rde2 Qd2 Na2 Qb4 Nc3 Nb6+ Kb8 Nd7+ Ka8 Nf6 Ne4 Nd7 Nd2 Kc3 Ne4+ Kb3 d4 Ka2 Nc3+ Ka1
b1k2B2/2pn1KBp/q1NR1P2/pqb5/n2p3N/p1PP3P/8/1bB1N1bQ w - - 0 3 legal: proof: f4 d5 a4 e5 b4 b5 Ra3 bxa4 Rg3 a5 d3 Ra6 Rg5 Rd6 Rg6 d4 e4 Rd5 exd5 e4 Rc6 e3 Ra6 Kd7 Rg6 Ke8 g4 f5 g5 Nh6 Bg2 Kd7 Kf1 Rg8 Be4 fxe4 Rf6 Bd6 g6 Rf8 f5 Rf7 gxf7 Bf8 Rg6 Be7 Rg2 g5 Rd2 exd2 Kf2 a3 Kg3 e3 f8B e2 b5 g4 Kf4 e1Q c3 g3 d6 g2 b6 Na6 b7 Nf7 b8N+ Ke8 Nf3 g1B Nh4 Qd7 Nc6 Qee6 h3 Bf2 Rg1 Bb7 Rg6 Ba8 Qh1 d1B Nd2 Nc5 Ndf3 Bg1 Ne1 Bc2 Rf6 Ne5 Kg5 Bb1 Kh6 Qc8 Kg7 Qb3 Re6 Kd7 f6 Nc4 Kf7 Qa6 Bg7 Kc8 d7+ Kb7 d8B Nd7 Rd6 Ncb6+ Re6 Bc5 Be7 Qbb5 Rd6 Kc8 Bef8 Na4
Q2Kn1rq/qBr5/3b3b/NbPR1PRq/6pP/1n2N1P1/1R1N1k1q/6nq w - - 0 1 illegal: No extended proof kernel
nN2nkn1/2pK4/PrP1n3/3N2nb/3QB1RP/rr1RR3/bbP3Nb/1q6 w - - 0 1 illegal: No proof kernel
3Qn3/1RpB1k2/KnPB1B2/n1P2NPn/b1q3qP/5rr1/rR2Rr2/6bq w - - 0 1 illegal: No proof kernel
8/kqp2q2/2rr4/1P1BP1R1/P2NpnB1/1K1Q1bq1/1RPnRb1B/1r2nb2 w - - 0 1 illegal: No proof kernel
3n1B2/bqp1nqbn/2BnkPR1/N3np2/2PB1PP1/3R3Q/4Rb2/r3rK2 w - - 0 2 illegal: No possible last move, all moves rejected
KnRbB1RN/pQP2rP1/1p3P2/kP5b/5qBb/1rr1BR2/3nrq2/6r1 w - - 0 1 illegal: No proof kernel
b2R1Q1r/1rb1Rrn1/B7/1r1NpP2/pBK5/RrP2Pb1/n3P1k1/3Bq2q w - - 0 1 illegal: No proof kernel
1q3Q1R/2q1B1PP/r1N2p1k/P3qp2/2B2P1r/1b1bbK2/3N1nr1/N1n1q2B w - - 0 1 illegal: No proof kernel
1n1K2N1/P1b1n1B1/1b1p2rp/N1qP3b/4BBQr/Pr2n3/kN1P4/3Rnq2 w - - 0 1 illegal: Other
n1qQ3B/PBN1rq1q/B3n2p/r4p2/k1P1r1N1/3K2n1/PRb2PNb/7n w - - 0 1 legal: proof: d4 a5 h4 g5 b4 gxh4 bxa5 c5 d5 c4 Na3 e6 Rb1 exd5 Rb3 d4 Rd3 cxd3 Kd2 d5 g4 Kd7 e4 Kc6 e5 b5 c3 h6 e6 b4 g5 b3 e7 h3 e8B+ Nd7 g6 b2 g7 b1Q a6 h2 Qe2 Nf6 g8N Nh5 Qe4 Rh7 Qh4 Nf4 Qg3 Bd6 Nc2 Kb5 c4+ Ka4 Qh3 Ne6 Kd1 d2 Ke2 d1N Qg2 d3+ Kd2 d4 Na3 Ne3 Nf3 Nf5 Ng1 Ng3 Nb5 Nb6 Ne2 f6 Qh3 Re7 Rg1 h1N Nc7+ Bd7 Qg2 Qc8 Bb2 Ra7 Qd5 Na8 Bh3 f5 Bc3 Qbb7 Nf4 Bb5 Bg2 Bc6 Kd1 d2 Kc2 d1R Nf6 Re1 Ng4 Re4 Rb1 d3+ Kd2 Bb5 Bh8 Bd7 Kc3 d2 Rb2 d1Q Bf3 Qg1 Ng2 Qh2 Kd2 Qh5 Kd3 Qf7 Qd4 Nh5 Qb6 Bh2 Qd6 Bc6 Qd8 N5g3 Bd7 Qb5 Be8 Qe5 Bd7 Qeg7 Be8 Qh7 Bd7 Rb7 a7 Rb5 Be8 Ra5 Bd7 Qb7 Bc8 Qb8 Ba6 Qc8 Nd5 Re5 Nc7 Be4+ Kd2 Bb1 Bfb7 Re4 Kc3 Bc2 Kd2 Bb3 Kd3 Bc2+
1N2krn1/2p1P1Pb/Pqn2R2/2Qq4/B2bRb1p/KbNrr2q/2P5/1NR5 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 f6 d5 Kf7 d6 Ke6 Bd2 Kd5 Bf4+ Kc6 dxe7 Ra3 e6 Ra8 Be5 fxe5 Kd2 h5 Kc1 b5 Kb2 d5 e8R h3 g4 b3 a4 h4 f4 d4 f5 d3 e7 Kd7 g5 d2 g6 h2 a5 e4 f6 e3 f7 b4 Ba6 e2 Qc1 e1B Bb5+ Nc6 Bc4 d1R Qh6 Bf2 Nc3 Rd3 Qd2 Bd4 Rb1 Bh6 g7 Bf4 Nf3 Ra6 Rhe1 h1Q Qf2 Qh3 Rf8 Bb7 Ka1 b2+ Ka2 b3+ Ka3 Ra8 Rbc1 b1Q Ba6 b2 Bb5 Rh6 a6 Re6 Nd2 Ree3 Re2 Rb8 Ba4 Rc8 Rh1 Qg1 Re1 b1B Rc1 Qg6 Rhe1 Ba2 Nb1 Bb3 Qg1 Qge6 Qg5 Ra8 Qc5 Qb8 Re2 Qd5 Ree1 Rf3 Re6 Rfe3 Re4 Qa7 Rb8 Bc8 f8N+ Ke8 Rb6 Bf5 Nd7 Rd8 Nb8 Bh7 Rb4 Qb6 Re6 Bf6 Rbe4 Bd4 Rg6 Kf7 Rd6 Rf8 Rf6+ Ke8
K1k2n1B/Rp1N1r2/1bn3PR/Qb2rrN1/R2pq1PP/b1q5/1Pq5/2q4N w - - 0 1 illegal: No proof kernel
4kbNR/1bb2Npn/4KB1N/2Bp2n1/1Pb1Bqr1/4P3/P2PQrr1/3rb3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 f5 a4 Na3 e6 Rb1 exf5 c4 b5 cxb5 f4 Rb3 axb3 Kf2 f5 h4 c5 b6 d5 e3 g3+ Kf3 c4 h5 c3 h6 c2 h7 g2 b7 b2 Nb5 b1R Qe1 Qd6 Nc3 Nd7 b8B Ngf6 Nb5 Ne5+ Kf2 f3 Kg3 f2 Kf4 Nf7+ Kf3 f4 Qe2 Bb7 Rh2 Ra6 Nh3 g1B Bb2 c1B Be5 Bb2 Na7 Rd1 Bg2 f1B Nc6 Bf2 Ne7 Be1 Nf2 Bd4 Ng4 Bb6 Rh5 Bc7 Nh6 Rc6 Rh3 Rc4 Ba7 Re4 Bc5 Rd4 Qf2 Bc4 Qe2 Re4 Neg8 Rd4 Bh1 Ng5+ Kg2 f3+ Kh2 f2 Kg3 Be7 Be4 Bf8 Kf4 f1R+ Qf3 Bg3+ Kf5 Be1 Rh2 Rg1 Qe2 Rg2 Rh3 Nd7 Bf6 Qg3 Bd3 Rg4 Be4 Qh4 Ne7 Rg8 h8N Qg3 N8f7 Rh8 Ba1 Nf6 Neg8 Nfh7 Bf6 Qf4+ Kg6 Rf2 Nf5 Rgg2 Bfd4 Nf6 Rh5 Bfd6 Ba1 Nd7 Bf6 Be7 Rh2 Rh4 Rh1 Rhg4 Rh8 Qf3 N5h6 Nf8+ Kh5 Nfh7 Kg6 Bf4 Kf5 Bf8 Ne7 Qg3 Neg8 Bc7+ Qf3 Nh3 Ke6 Qf4 Qe2 N3g5+
2bNN2K/pR1B2N1/1r1n1Rb1/2r1rq2/1n2Q3/r1P1pPPn/Pb6/R5bk w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 h5 f4 Bb2 g6 Bg7 gxh5 Bd4 h4 Be3 fxe3 Ke2 Kf7 d4 Kf6 c6 Kf5 c7 Kg4 d5 e5 d6 h5 d7 b5 Qc1 b4 Rh2 b3 Qb2 h3 Nc3 h4 Nb1 Nh6 Qc3 b2 Qc6 Bg7 Nd2 b1B Qe6+ Nf5 Qc6 Qf8 d8R Nd6 Qe8 Na6 Rd7 Rh6 Qf7 Nb4 Qc4 Qf5 Rh1 h2 Nb3 h3 Nc5 Rh5 Nb7 Rb8 Nd8 Rb6 Nf3 Bh8 Rg1 h1R Qd4 h2 Ng5 Kf4 Nge6+ Kg4 Kd1 e2+ Kd2 e1R Kc3 Rc1 Qd3 e3 Ng7 e4 Kd4 e2 f3+ Kg3 Rf7 e1B Rf6 e3 Qe4 Bf2 Bb5 Ra6 Rf1 Bg1 Bd7 Ra3 Rd1 Kf2 g3 Kg2 Rd3 Rg5 Rb3 Rg6 Rf7 Re6 Rf6 Re5 Rb2 Bf2 Rb3 Rhf1 Rb2 h1N Rb3 Bg1 Rb2 Ba6 c8N Nf2 Rb3 Kh1 Rb2 Nc4 Nd6 Nh3 Nde8 Bc8 Rb3 Rf2 Rb2 Nd6 Rb3 Rb5 Rb2 Rb6 Rb3 Rh2 Rb2 Qg4 Ke5 Qf4+ Ke6 Qf5+ Ke7 Rd2 Kf8 Rd5 Kg8 Re5 Rb3 Rc5 Rc3 Re5 Rc7 Rd1 Rb7 Rdd5 Qc4 Rda5 Qe4 Rac5 Rf7 Nc4 Qh4 Nd6 Nh5 Re6 Rf8 Be5 Nhg7 Qf4 Rf6 Bb2 c3 Ree5 Kh8 Bg6 Qg4 Qg5 Qe4 Qf5
2bn2N1/2b5/1pKR1Nn1/QPb1P2b/1r2PRp1/1nq3B1/PNkq4/2n1r2R w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 e5 fxe5 c5 Bg2 cxd4 Bd5 a4 Bb3 axb3 Kf2 Ke7 c4 Ke6 h4 Kf5 c5 Ke4 e3 g5 c6 d5 c7 f5 b5 b2 h5 g3+ Ke2 b6 h6 f4 h7 g2 Qe1 f3+ Kf2 Kd3 e4 Ne7 Ne2 g1B+ Kg3 f2 Kf3 f1N Rh2 Ng3 Rh1 Kc2 Bf4 d3 Qa5 d4 Qb4 d2 Qa3 d1Q Qa5 d3 Qe1 d2 Rh4 Bc5 Nc3 b1N Nd5 Ng6 Nf6 Qc1 Nc3 Ne2 Na4 d1B Bg3 Bfd6 Qa5 Nc6 Rf4 Rf8 h8R Nd2+ Kg2 Qd7 Rh1 Nb3 Kf3 Nd8 Nb2 Qd2 Rb1 Qc6 Ra1 Rf7 Rh6 Rd7 Kg4 Ra7 Kf5 Nec1 Rb1 Bh5 Ra1 Ba6 c8N g4 Ne7 Bc8 Neg8 Bc7 Rb1 Nd3 Rd1 Ndc1 Rh7 Rd3+ Rd7 Re3 Rh1 Ne6 Rd6 Re1 Nh7 Nd8+ Kf6 Nf8 Ke7 Ra6 Nhf6 Ra8 Qb4 Ra4 Qa5 Rb4 Rf3 Qcd5 Rf4 Ng6+ Ke8 Bb7 Kd7 Q5d3 Rf3 Ba6 Rf2 Qc3 Rf4 Ne6 Kc6 Bb7+ Kd7 Bc8+ Kc6 Nd8+
1nr2R1q/nN6/p2rqbK1/R2nP3/P1NBp2R/nkP5/3QPN1b/5b1b w - - 0 2 legal: proof: d4 c5 b4 cxb4 g4 e5 dxe5 f5 Bg2 h5 Bf3 hxg4 Be4 fxe4 Kd2 Kf7 Ke3 Ke6 Kf4 g5+ Kg3 b5 a4 d5 f4 a6 h4 d4 c3 Kd5 h5 Kc4 h6 d3 f5 b3 f6 b2 h7 d2 f7 b4 Qe1 d1N Rh5 b3 Rh1 Be7 f8R Bf6 Rh5 Ne7 Nh3 Nec6 Re8 Ne3 Rf8 Na7 Ng1 Nd5 Kf2 g3+ Kg2 g4 Kf1 g2+ Kf2 Qb6+ Kg3 Qe6 Rf7 Rd8 h8N Rd6 Nh3 g1B Qd2 Bh2+ Kg2 g3 Rf8 Bd7 Rh6 Be8 Rh4 Bh5 Nf2 Bf3+ Kf1 Bh1 Nf7 g2+ Ke1 Nd7 Nd8 Rc8 Kd1 Nb8 Na3+ Kc5 Ra2 b1N Nc4 b2 Kc2 g1Q Nb7+ Kc6 Ra3 Qgg8 Rb3 Qh8 Rb5 Na3+ Kd1 b1B Ra5 Nc2 Ba3 Ba2 Bc5 Na3 Bd4 N7b5 Qd3 Na7 Kd2 Nc7 Nc5 Kd5 Ke3 Bb3 Qd2 Ba2 Nb2 Bc4 Nb7+ Bb5 Nbd3 Kc4 Nb2+ Kb3 Nc4 Bd7 Rg4 Qf7 Rf4 Bh3 Rh4 Bg1 Kf4 Bf1 Kf5 Qe6+ Kg6 Bh2 Rf4 Nd5 Rg4 Bhg2 Rh4 Bh1
n4br1/qN3ppn/B4N1b/PR2r3/qr1B3K/4PPb1/QB4Pk/r1b4N w - - 0 2 illegal: No proof kernel
6Kn/2p4p/kqPN1NP1/b6r/bbRrQn2/Pq3P1B/5p1B/nN3B1r w - - 0 1 illegal: No proof kernel
B2R3r/1Pp5/1b2r2n/nq2Q2P/1K1p1N2/P2NR2R/p2Pbqq1/bk1r1N2 w - - 0 1 illegal: No proof kernel
1K3N2/Nn1QR2N/4qB2/P1pP3b/PrP1rk2/Bp1nn3/1pr5/2nB2bq w - - 0 1 illegal: No proof kernel
2n3bB/1R4Qr/2PnBrnq/2Kp3b/1BpP2R1/1pR2P2/1Pb5/nN2q2k w - - 1 2 illegal: No proof kernel
B6R/2Q1rNbn/2pP1r2/nR1q2Rb/1B1prp1P/1n2q3/2kP2P1/4KBn1 w - - 0 1 illegal: No proof kernel
nr6/nr3PRr/PRn4r/q1pR1p2/n1P4N/P3QN2/p3B1b1/K1b1N2k w - - 0 1 illegal: No proof kernel
N5Nn/rRn1R3/2n1p3/2n4p/1rP1P1kp/q1Qbq2N/1R4PP/3K1qBq w - - 0 1 legal: proof: f4 a5 b4 axb4 e3 c5 f5 g6 f6 e6 d4 cxd4 Be2 Be7 Bh5 gxh5 Qg4 Qc7 Nc3 Kd8 Nb1 Qa5 fxe7+ Kc7 Qe2 Kc6 Qd1 Qd8 e8N Kd5 a4 Ke5 c3 Kf5 a5 b5 a6 d5 a7 b3 Kd2 b2 Ke2 b4 e4+ Kg4 Qa4 f5 Qa3 d3+ Kd2 f4 Nd6 d4 Qa4 h4 Nf3 h5 Ne8 b3 Nc7 Qd6 Qb4 Nc6 Ne8 Ba6 Qa3 Nge7 Ng5 f3 Qc5 f2 Qc4 f1Q Qc5 Ng6 Na3 b1Q Nb5 b2 Qc4 Qa3 Ned6 Rhb8 Qc5 Nh8 Nc7 Rb4 Nh3 Qf4+ Ke1 d2+ Kd1 Qe3 Ra2 Bd3 Nf5 Qa1 c4 b1Q Re1 Rg8 a8R Rg7 Qe5 Rf7 Na6 Ra7 Rb2 Qg1 Nc7 Qh1 Rc2 Bf1 Re3 Rba4 Rb3 Qc5 Ne7 Qaa2 Rcb2 Qaa3 Rb7 Rb4 Ng8 Qba1 Kc2 d1N Bg5 d3+ Kd2 Ne3 Bf4 Nd5 Qf6 Be2 Be3 Qaf1 Rc8 Qd4 Na8 Nc7 Bg1 Qb6 Rb3 Qe3+ Kc3 d2+ Kc2 d1N Re8 Nc3 Re7 Na4 Rb2 Nc5 Qd4 Qf8 Qc3 Bd3+ Kd1 Qf1+
2QB3R/k1NR4/1pn2Pn1/q1r4q/KRp1r1P1/1Nb1qr2/1PPp4/1q2N2r w - - 0 1 illegal: No possible last move, all moves rejected
1Rb2R2/prb1QP2/2q3K1/N2P3n/1np1NRBP/2P2prr/1bp5/kn1N4 w - - 0 1 illegal: No proof kernel
1b2n3/1r2PB1P/p1rp4/N1kPRn2/Rqq1qP2/p3bB2/1Qb1Rp1B/7K w - - 0 1 illegal: No proof kernel
1Rb2nk1/1pP1K1p1/P3np2/1P1Pp3/q1Br1qQr/5qbN/Nn2R2R/1N6 w - - 0 1 illegal: No proof kernel
1RKB1krQ/4pP2/rR1r1bbp/3q1p2/1P4Nr/2N1P1NP/2n1Rp2/r3n3 w - - 0 2 illegal: No proof kernel
Q4q1k/2N1R1np/2bp2b1/r1b2p2/1N1Nq1R1/Rp1P3P/1Pn1P1K1/nn1B4 w - - 1 3 illegal: No possible last move, all moves rejected
2R4K/p1p1Rnrp/N3bn2/bbP2N1P/k1P2b1b/p4R2/B4Pb1/1N3q1Q w - - 0 1 legal: proof: c4 f5 a4 b5 e4 fxe4 h4 bxa4 d3 Na6 Bh6 Rb8 c5 Rb4 h5 g6 Bg5 Rc4 Bh4 g5 dxc4 gxh4 Kd2 e5 Kc3 d5 b4 Kd7 g4 Kc6 g5 a3 b5+ Kb7 b6 e3 g6 e4 Kd4 h3 Ke5 e2 g7 e1B Nd2 d4 Qb1 d3 Qd1 e3 Ngf3 h2 Qc2 e2 Bg2 Nf6 g8R Be7 Qb2 Nb8 Rc1 Ka6 b7 Ka5 Qa2 Be6 Rb1 Ka4 Qa1 Qe8 Rf1 h1B Rb3 Qd7 Rd8 Rg8 Rc8 Rg7 Nb1 d2 Nh4 d1B Rf3 Ba5 Re1 Qd3 Nf5 Bc2 Bh3 Bg2 Bg4 Qd1 Bh3 Be4 Bg4 Bc6 Bh3 Na6 b8N Nb4 Na6 Bb5 Bg4 Ne4 Bh3 Bh4 Bg4 Ng5 Kf6 Re7 Bh3 Nf7+ Kg7 Nd5 Bg4 Nf6 Bh3 Nd8+ Kh8 Rg7 Nd6 Bg5 Bf5 Bh4 Bd3 Bd2 Nf5 Bf4 Bc2+ Ka5 Bb3 Qd3 Rd1 e1B Ba2 Qf1 Rd7 Ka4 Re7 Ba5 Qd4 Qh1 Qe4 Qd1 Qe1 Qc1 Qg1 Qf1 Qh1 Nf7+
3qrbn1/N1Pp3p/qN2k3/p2b4/PB1rb2N/2PBpnBK/2p2P1R/2Q5 w - - 0 1 legal: proof: e4 c5 a4 g5 d4 f5 h4 fxe4 Be3 gxh4 Ra3 b5 Rd3 b4 c3 b3 Rd2 Nf6 dxc5 Ng8 Rc2 bxc2 b3 Kf7 b4 Ke8 g4 Kf7 g5 a5 c6 e5 b5 h3 g6+ Ke6 g7 h2 b6 Ba6 b7 Ba3 Bc5 e3 Nf3 e2 Qc1 e4 Nh4 Bc4 Nd2 Ba2 Nc4 Ra6 Nb6 Bd5 Bd6 Bb4 Bg3 Bc5 c7 Nc6 b8B Bf8 Ba7 Nge7 g8N Nd4 Na8 Rd6 Bc5 Bh6 Nb6 Bf8 Nf6 Ng8 Nc8 Ne7 Na7 Ng8 Rg1 h1B Bb4 Bg2 Rh1 Bf3 Rh2 Bg2 Kd2 Nf3+ Ke3 e1Q+ Kf4 e3 Bd3 Qe2 Kg4 Be4 Nd5 Bh1 Nb6 Rd4 Kh3 Bd5 Bg6 Qa6 Nac8 Nd2 Bd3 Bhe4 Na7 Nf3 Ba3 Qf6 Bad6 Qd8 Bb4 Bd6 Bb5 Ne7 Be2 Re8 Bc4 Ng8 Bd3 Bf8
1Q3N2/1B1p3N/p3rKp1/bB4Pb/q2P2Rr/p1n5/Pk1PNp2/2nBbq2 w - - 1 3 illegal: No proof kernel
1R1r3b/pp4Q1/kPr1B3/P4R2/B1nbNp2/2K3p1/P1BprqP1/r1n1R3 w - - 0 3 illegal: Other
rBB1bK2/1R1nnP1P/npN1pr2/2N1P3/2pN1pnq/1P3p2/1Q6/B4kb1 w - - 0 2 illegal: No possible last move
r2B4/1n1pB2K/2kP1Np1/Prr2RPN/3P1Q2/p2B4/pqb1q2p/N5qn w - - 0 1 illegal: No proof kernel
1n1R1Q1B/4p1pr/3p1N2/BPnP2R1/r3Kp2/1p3PBr/p1R1P1q1/4brk1 w - - 0 3 illegal: Other
1bnk2NK/p3r3/Q1Pqq2q/PB3b1p/q1b2Rp1/2Rr2Pn/6RP/3N2Nr w - - 0 1 legal: proof: b4 d5 e4 f5 b5 d4 b6 fxe4 Bb2 cxb6 Ba3 b5 Bd6 b4 Bf4 Kf7 Bh6 Ke8 Be3 dxe3 Ke2 b5 c4 e5 f4 h5 a4 g5 d4 g4 c5 b3 c6 b2 g3 b4 d5 b3 f5 Nh6 f6 Qd6 a5 Nd7 f7+ Kd8 Qd4 Rh7 Qb4 Nb6 Qc5 Ba6+ Qc4 Nc8 Qd3 Bc4 Nd2 b1Q Bg2 b2 Bh3 Qc2 Bf1 b1B Ra3 Qa4 Rc3 Be7 f8N Nf7 Nd7 Ng5 Nf6 Nh3 Ng8 Qh6 d6 Bf8 d7 Bd6 Bg2 Bb8 Bf1 Bc2 Nb1 Re7 Ra3 Qd6 Nc3 Bb1 Nd1 Qh6 Ke1 e2 Rc3 Qd6 Kd2 e1R Rc2 e3+ Kc3 e4 Rg2 Qh6 Kd4 e2 Qf3 Rg7 Qd3 e3 Ke4 Re7+ Kf5 Qh8 Kg6 Qd4 Kh6 Qd6+ Qg6 Bf5 Qf6 Bf7 Kg7 Bd5+ Kh8 Bc4 Nf2 Rc1 Nd1 e1Q Qb2 e2 Qb5 Qf2 Qa6 e1Q Bd3 Qfe3 Be2 Kc7 d8R Q3d2 Bd3 Qee6 Rf8 Qg5 Rf7 Kd8 Rf6 Bd5 Bb5 Bc4 Nf3 Ra1 Re1 Qgf4 Re3 Rc1 Rc3 Ra1 Ne3 Rh1 Nd1 Qg5 Rf7 Qgh6+ Rh7 Qdd2 Rb3 Nd6 Rd3 Bc7 Qb6 Rb8 Ba6 Be4 Ng1 Qdb4 Re3 Nc8 Rd3+ Qbd6 Rf3 Qg5 Rhf7 Bh7 R7f4 Bf5 Qb5 Rb6 Re3 Bb8 Ra3 Be2 Qc4 Rb3 Qb5 Re3 Rc3 Bc4 Qb7 Qgg6 Bb5 Rd3 Qa6 Qh6+
Bbn3Q1/1bp5/1qB5/kNRp1bKR/q3r3/Bpq1rPpR/2PP1rP1/7n w - - 0 1 illegal: No proof kernel
bQq1K2R/2B4r/4p1P1/pp1N4/Prb2pn1/N3P2R/1PR1bq1b/3Nnqk1 w - - 0 1 legal: proof: f4 g5 g4 gxf4 d4 c5 g5 cxd4 Bh3 h5 Bg4 hxg4 Kf2 b5 h4 f5 c4 Kf7 e3 Ke6 g6 Ke5 a3 Ke4 c5 d5 h5 e6 c6 d3 c7 d4 h6 d2 h7 d3 Rh3 f3 Kg3 f2 Qf1 d1Q Bd2 Nh6 Bc1 d2 Nf3 Bd6+ Ne5 Nc6 Qc4+ Nd4 Qb4 f1B Qb3 Nf3 Qc3 Bb7 c8N Bc4 Ne7 Qf1 Nd5 d1B Bd2 Qc8 a4 a5 Be1 Ra7 Na3 Bde2 Rc1 Ba8 Rc2 Rf7 Bf2 Ne1 Kh4 g3 Kg5 g2 Nd3 g1Q+ Bg3 Kf3 Qe5 Kg2 Nf2 Ng4 Nd1 Qgf2 Bf4 Rhf8 h8R Kg1 Bg3 Rh7 Qf4 Bc5 Qb8 Rff7 Bc7 Bd6 Rg8 Rh4 Rd8 Rfh7 Rh8 Nh6 Kf6 Bh2 Rd8 Re4 Re8 f4 Rh8 Nf7 Ke7 Rd4 Bd8 Ne5+ Kf8 Ng4 Ke8 Bcd3 Nb6 Rb4 Nd5 Qc5 Bc7 Bc4 Bd6 Qc7 Be5 Qb7 Bc7 Qc8+
1B1N4/rb1qkpbQ/N4p2/N1p1qPpB/3RPp1p/2n2K2/2Pp1B1P/3r2n1 w - - 0 1 illegal: Other
R2N3Q/Pn5n/B1Pq2P1/N2kq3/2q1qB2/1b2q2b/Q3P1BK/1r2bn2 w - - 0 1 legal: proof: h4 a5 a4 d5 d4 b5 f4 g5 hxg5 e5 Ra3 Ra6 b4 axb4 fxe5 bxa3 Bb2 c5 Bc1 Rd6 exd6 cxd4 Kf2 Kd7 Kg3 Ke6 c4 f5 c5 h5 d7 a2 g6 a1Q a5 d3 c6 d2 g7 f4+ Kh2 f3 g4 d4 g5 b4 a6 d3 g6 f2 a7 b3 Nf3 b2 Kg2 h4 Qa4 d1B Be3 d2 Qb4 h3+ Kg3 h2 Qa3 Qh4+ Kg2 Bb4 d8Q Nd7 Ng1 Qc4 Qaa5 Ngf6 Bf4 Nc5 Qa4 Nh7 Nh3 Bb3 Qa2 d1Q Na3 Qd6 Ng5+ Kd5 Nf7 b1Q g8B Qbe4+ Kg3 Bd7 Bg2 Be1 Qe8 Be6 Nd8 Nb7 Rf1 h1Q Qf8 Qcb4 Nc4 Qh6 Na5 Qc4 Rh1 Qg5+ Kh2 Qac1 Qf6 Qe3 Bf7 Rf8 Qh8 Qge5 Rf1 Kc5 Bg8 Bh3 Be6 Rf5 Bc8 Kd5 Rh1 Nc5 Ba6 Rg5 Bf1 Rg1 Bg2 Nb7 Qa1 Bb4 Qa2 Ra1 Rb1 Be1 Rb2 Ba4 Rb6 Bb3 Rb4 Rb1 Rb5+ Nc5 Rb8 Nb7 Ra8 f1N+
2k1q3/1rP3r1/5nN1/1rN2K2/1NPr3P/2bQ3P/npbBB3/4bQrR w - - 0 1 legal: proof: b4 f5 d4 c5 dxc5 h5 e4 a5 exf5 axb4 a4 b3 g3 h4 gxh4 Rxa4 Ra3 b2 Rc3 Ra1 Ra3 Ra2 Ra8 Rxa8 Kd2 d5 Kd3 Kd7 f4 b5 c4 e5 f6 g5 f5 d4 Ke4 d3 h3 d2 f7 b4 f6 g4 Qf3 d1R Be3 b3 Bh6 g3 Qg2 Qe8 Nc3 b1R Nb5 Na6 Nc7 Nb4 Rh2 Ra5 Nd5 Bg7 f8Q Rd4+ Kf5 e4 f7 e3 Qf3 e2 Qd3 e1B Rh1 g2 Ne2 g1R Nef4 Rb5 Ng6 Rh7 Be2 Na2 Nb4 Nf6 Be3 Bb7 Bd2 Bd5 c6+ Kc8 c7 Bh8 Qd6 Rg7 f8N Rb2 Ne6 Be4+ Kf4 Rb1 Qf3 Rb7 Qf1 Bc2+ Ke5 b2 Qd5 Ra1 Qdf3 Rd1 Qd3 Rd5+ Kf4 Ra5 Nc5 Rab5 Bc3 Rd2 Kf5 Rd1 Qe4 Rdd7 Bd2 Rd4 Qd3 Nd5 Qg2 Rg8 Qf1 Rdg4 Be3 Bhc3 Nca6 Rd4 Bd2 Rg7 Nc5 Nf6
1qB1qB2/1rk1b3/1R1p1P2/rP1P4/n1nb1q2/4Q1KN/1q1P4/QRn3B1 w - - 0 1 legal: proof: b4 b5 c4 g5 e4 f5 exf5 Bb7 h4 gxh4 a4 Bd5 cxd5 bxa4 Nc3 a3 Nb5 Bg7 Nxa7 Bh6 b5 Bf8 Nc6 Na6 Nb8 Nxb8 f4 h5 Kf2 e5 g4 c5 f6 d6 f7+ Kd7 f5 a2 f6 c4 g5 e4 g6 h3 g7 e3+ Kf3 e2 Bb2 e1Q Be2 h2 Qc2 h4 Bc3 h3 Qa4 Be7 f8B Na6 Qb4 Rh7 Rc1 a1B Qb1 Nc5 Rd1 Kc7 Bd3 Na4 Qc1 Nh6 g8Q Nf7 Bg7 Qb8 Be5 c3 Qe8 c2 Qa3 c1N Bf8 Bd4 Bf5 Ra5 Qa1 Rg7 Bg3 Ne5+ Kf4 Qe2 Bc8 Nc4 Bf2 Rh7 Kg3 Qe6 Ne2 Qf5 Rhf1 h1Q Nf4 h2 Bg1 Qhe4 Nh3 h1Q Rf3 Qb1 Ra3 Qb2 Rf1 Qhe4 Ra2 Nd3 Rb1 Nc1 Ra3 Bd8 Qe6 Be7 Rc3 Qe2 Qe3 Qeh5 Ra3 Qe8 Rc3 Qf4+ Kg2 Kd8 Nf2 Ne5 Rc7 Nc4 Rb7 Rf7 Rb6 Rh7 Bh6 Bf8 Nh3 Rb7 Bg7 Be7 Bf8 Qe5 Kf3 Kc7 Kf2 Qe4 Kg3 Qf4+
nn6/3p2N1/BP2b3/Q2K1Q1n/2rN3R/P2nP3/rN2pP1q/1r1Rn2k w - - 0 1 legal: proof: c4 b5 b4 a5 g4 h5 gxh5 f5 Ba3 bxc4 b5 e5 Bb4 axb4 e4 Bc5 exf5 e4 Bh3 e3 Bg2 e2 Bf1 Be3 dxe3 Qe7 Kd2 Qd8 h4 Ke7 b6 Kf6 h6 Ke5 h7 Ke4 h5 c5 f6 g5 h6 b3 Kc3 g4 f7 b2 f8N g3 Qb3 g2 Nf3 g1R Ne5 Ba6 Na3 b1N+ Kb2 c3+ Kc2 c4 Qb5 Qh4 Nfg6 Nf6 Nc6 Kf3 Nf8 Qh2 Qa5 Nh5 Ne6 Rc8 h8Q Ra7 h7 Rcc7 Kc1 c2 Kb2 c1N Ng7 Nc3 Qe8 Nb5 h8Q c3+ Kc2 Ra8 Qe6 Nd3 Kb3 c2 Kc4 c1N Qh7 Ne1 Kd5 Ncd3 Nc4 Rc8 Rd1 Nc7+ Kd4 Bb5 Nb2 Bc4 Bh3 Bd5 Bf5 Kg2 Bg6 Bb3 Ke4 Ra6 Nd4 Na8 Bf5 Rc4 Kd5 Qf4 Rh4 Qh2 Bg6 Kh1 Bf7 Rf1 Qhf5 Nc2 Rd2 Rb1 Rd1+ Nce1 Bg6 Ra7 Bf7 Rac7 a3 Rc2+ Ke4 R7c4 Kd5 Rd2 Na4 Ra2 Nb2 Ng3 Bg6 Nh5 Qee5 Rc8+ Kd6 Bd5 Bf7 Bf3 Bc4 Bd5 Ba6 Bf7 Qe6 Rc7 Kd5 Rc4 Qf5 Bxe6+
n1N2nb1/1nP2Pn1/1R1pq3/2P2pr1/2nN1BQ1/1nQ1q3/B4k1P/1K5Q w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 h5 e4 hxg4 e5 a5 Ba6 f5 Bd3 b5 axb5 Ra7 Bf1 Rb7 d4 c5 b4 Qe7 c4 Qf6 b6 Na6 b5 Be7 d5 Rc7 Ra4 Nb8 Rb4 cxb4 c5 Rc6 dxc6 Bd8 Ke2 Qf8 Ke1 Bf6 exf6 Qe7+ Be2 Qd8 Bd3 Ne7 Bf1 Ng8 Kd2 Kf7 Kc2 Ke6 c7 Ke5 b7 Ke4 b6 g5 Be2 g3 Bd2 g2 Bb5 d6 Ne2 Kf3 Ng3+ Kf2 Qg4 g1N Qh5 f3 Qh3 b3+ Kb2 g4 Bg5 a4 Kc1 b2+ Kc2 a3 Bf1 a2 Bc4 a1N+ Kc3 Qe7 Be6 Nc6 b8Q Ne2+ Kd3 Nc3 b7 Nd5 Nd2 b1N Qh5 Na3 Bf7 Nc4 Rc1 Nd8 Qa8 Be6 b8Q Nb3 Kc2 Nb7 Kb1 Ndb6 Qa1 Na8 Ngf1 g3 Ne3 g2 Nd5 g1Q Qg4 Rh5 Bf4 Rg5 Qc3 Qe1 Nb6 Qe3 Qa7 Qe8 Qaa1 Ne7 Rg1 Ng6 Nc8 Nf8 Rc1 Qe7 Rc2 Bd5 Rb2 Q7e6 Bg8 Ke1 Bf7 f2 Bg8 f1N Nf3+ Kd1 Bf7 Ng3 Bg8 Nh5 Nd4+ Qf3 Bf7 Ng7 Bg8 N3a5 Rb6 Nb3 Qc2+ Ke1 Qe4+ Kf1 Qc3 Qe3 Qh1+ Kf2 Bf7 Q6e5 Be6 Bc6 Bg8 Be8 Bd5 Bf7 Be6 Bg8 f7 Nb2 Bd5 Qe6 Bc4 N3a5 Bb3 Nbc4 Ba2 Nb3
3k2r1/1KNP1r1N/pQ1p4/P4P1P/b2Q4/2pbn2B/1RB1N1r1/bq1n4 w - - 0 1 legal: proof: c4 d5 e4 c5 g4 h5 gxh5 f5 exf5 Nf6 d4 Ng8 b4 dxc4 bxc5 Rh6 Bg5 Rh7 Bc1 Rh8 a4 g5 f4 Qd5 f6 Qd6 d5 Qc7 d6 Nc6 f5 Kf7 d7 Nb8 Bf4 gxf4 Ra2 Qa5+ Rd2 Qd8 Rd6 exd6 Kf2 b5 Kf3 b4 Ke4 b3 Kd5 a6 h4 b2 h6 f3 h7 f2 h5 Qb6 c6 Bb7 a5 Bg7 Qc1 Nh6 Qe3 Rf8 h8Q Ng4 Bd3 f1B Ne2 Nf2 Na3 b1R Bc2 Rb2 Rh2 Nd1 Nb5 Ra2 Nc7 Qb1 Qb6 Rg8 Nc1 Bd3 Ne2 Kf8 f7 Ke7 f8N Kd8 Nh7 Ba1 Qhd4 c3 Nf4 Rb2 Rd2 Rf8 Ne2 Rf6 Bb3 Ra2 Rb2 Rf7 Bc2 Ra4 Qdc5 Rg4 Qd4 Rg2 Qc4 Ke7 Qcd4 Rg5 Ne6 Bb5 N2f4 Ba4 Ne2 Rg6 Kc4 Rg5 c7 Nc6 Kd5 Rag8 c8B Rg1 Nc7 Kd8 Qf4 Ba8 Qfd4 Ne5+ Bb7 Ng4 Bc6 Bb5 Bb7 Bd3 Kc6 Nge3 Qbb4 Re7 Kb6 R1g4 Bg2 Rf7 Bh3 Bc6 Qb3 Bcb5 Kb7 Ba4 Qbb6 Rg2
7K/1B1qnqPp/1r1Q1b1n/5PNp/k1p2qNR/4P1nQ/7P/n4R1N w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 dxc4 Qc2 g6 Qa4 Kd7 Qd1 Ke8 b4 a5 b6 Bh3 b5 Bg4 Qb3 Be6 Qf3 Bc8 Qh5 gxh5 e4 f5 Ba3 f4 Bd6 Bf5 Bb4 axb4 exf5 e5 Ra5 e4 Ra3 e3 Ra1 e2 Nf3 Ra3 Ng1 Re3 fxe3 Qd5 Kf2 Qd8 Kf3 Kd7 Ke4 e1Q Ke5 c5 d4 b3 g4 f3 g5 c3 b7 f2 d5 b2 g6 c2 b6 c1Q d6 Kc6 d7 Qed2 Nf3 Be7 Bg2 Kb5 Nc3+ Kb4 Ne4 f1N Ng3 b1N Ra4+ Kb5 Ng5 Na6 b8Q Nh6 b7 Qb4 Qd6 Qcc4 b8N Nc7 Bb7 Nd5 Nc6 Na3 g7 Rf8 Ke6 Bf6 Ne5 Nc2 Ng4 Na1 Rg1 Qbb3 Nh1 Ng3 Rf1 Qf4 Rc4 Qc7 d8Q Ne7 Qa8 Rd8 Qa2 Ra8 Qg2 Ra6 Qh3 Qa4 Rd4 c4 Re4 Rb6 Rd4 Nhg8 Kf7 Ka5 Re4 Qad7 Kf8 Ka4 Kf7 Nd5+ Kf8 Nh6 Rd4 Nf7 Kg8 Nh6+ Kh8 Ne7 Ngf2 Qe5 Rh4 Qee6 Ng4 Qf7 Qc5 Qe5 Qd6 Qf4
1rr5/1kb2Q1q/1Pnn3b/R3b2n/K7/BBPN3P/4PQ2/b1Nb1qqB w - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 fxe5 h5 g4 hxg4 d4 cxd4 Ra3 f4 Rg3 fxg3 Kd2 g5 h3 a5 b6 d5 e6 a4 b7 a3 c3 d3 e7 Kd7 e8B+ Kc7 b5 d4 Qe1 g2 Qd1 g3 Qa4 a2 Qb4 a1B Qb3 g4 Qa3 Be6 Bd7 Qh4 Qb2 Bh6+ Kd1 d2 Kc2 d1N Qa3 Ne3+ Kd3 Nc6 Kd2 d3 Be8 Nf6 Bf7 Nh5 Nf3 g1Q Qc5 g2 Ne1 g3 Ba3 Bb3 Kc1 Bc2 Bb3 Rhb8 Nd2 Nc4 Qf2 Bd1 Kb1 Rc8 Ka2 Nd6 Qf7+ Qe7 Qf2 Qh7 b8Q+ Kd8 Qba7 Rab8 Qad4 Kc7 b6+ Kb7 Qdf4 Qh2 Qf6 g1B Qf8 Qg2 Qe8 Qf3 Bg2 Bh2 Rf1 Qg4 Bh1 g2 Qef8 g1B Q2f7+ Ka6 Rf5 Bd4 Re5 Qg1 Rf5 Rc7 Ra5+ Kb7 Qf2 Bde5 Q8f7 Qgg6 Bc1 Qg1 Ka3 Qf1 Ka4 B2f4 Ba3 Qg1 Ndf3 d2 Nd4 Bh2 Nd3 Bhg3 Qg6 Rcc8 Qe6 Qf1 Qef5 Bgf4 Qf7+ Rc7 Qe8 Qg1 Qh2 Ne4 Qg6 Bh8 Ra6 Bc2 Ra5 d1Q Qf2 Qdf1 Qf7 Bd1 Bc2 Bd6 Nb3 Bhe5 Qg8 Rcc8 Qgf7+ Bc7 Nbc1 Nd6 Bb3 Beg7 Qe7 Bh8 Qef7 Be5
3n4/1b2N1rP/k6b/b1Krr1qn/3R2P1/2QPPNb1/N2n1B2/1Qb2bB1 w - - 0 1 illegal: No possible last move, all moves rejected
2Q3r1/q1Pnb1n1/1P2R3/B3R1Nk/R2Pq2r/1qKP4/4qq1B/Q1bq1b2 w - - 0 1 legal: proof: h4 d5 a4 g5 e3 b5 axb5 d4 exd4 gxh4 Rh3 c6 Rh2 Bb7 Rh1 Bc8 b4 f5 b6 Nh6 b5 Qd7 b7 Ng8 b6 Qd6 Bb5 cxb5 Nc3 Qd8 Ne4 fxe4 c4 Kf7 g4 Kg6 f4 e5 g5 a5 d3 h5 Kd2 b4 c5 a4 c6 a3 c7 b3 Rb1 h3 Qc2 h2 Ne2 h4 f5+ Kh5 f6 a2 f7 a1B g6 h3 g7 b2 Qc3 e3+ Kc2 e4 Qc4 Nf6 g8Q Nbd7 b8R Be7 f8B Ne8 Bh6 Ng7 Nc3 e2 Qh7 e1Q Rg1 h1Q Bcf4 h2 Qhg8 e3 Nd5 e2 Qa6 Qf2 Kc3 Qe4 Rbe1 h1Q Bh2 Qhf3 Bc1 b1Q+ Bb2 Qd1 Rg6 Qf7 Re6 Bb7 Qa2 Bc6 Rb7 Qb8 Ra7 Bb7 Ra3 Qa7 Qc8 Rb8 Ra4 Ba8 Qa6 Rbg8 Qc8 Rh6 Kc4 Bb7 Bc3 Bb2 Qa1 Bc1 Ba5 Rhh8 Nc3 Ba8 Rh1 e1Q Rg1 Q4e2 Ne4 Rh7 Ng5 Bg2 Rh1 Bf1 Rg1 Qe4 Rg3 Qe1e2 Re3 Kg4 Kc3 Rh4 Re5 Kh5 Re6 Q4g4 R3e5 Qge4 Rg6 Qfd5 Rge6 Q5b3#
1b2N2N/r4P2/PQq3q1/q1bbR3/2Pk1bP1/r2nRR2/2n3q1/3BnKQ1 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 Be3 axb4 Bf2 g5 fxg5 h5 e4 h4 Bg3 hxg3 exf5 Rh7 Bb5 Rh3 Bf1 Rh8 c4 Kf7 h4 b5 a4 d5 f6 Ke6 f7 Ke5 a5 b3 g6 b2 h5 g2 h6 b4 h7 b3 a6 d3 g7 d2+ Ke2 d4 Kf2 d3 Rh3 Ra7 Ne2 g1B+ Kg2 Bc5 Rg3 Bb7+ Rf3 Bd5 Nc1 Nf6 g8R Nc6 Nc3 b1Q Ra5 b2 Ra2 Kd4 Be2 e5 Rg5 e4 Qa4 d1N Qc2 d2 Nd3 e3 Ra1 Bh6 Rg8 Nb4 Ne4 Nf2 Bf1 d1Q Nd2 e2 Qb3 e1B Ra2 Qbc2 Re8 b1Q Ra3 Qa5 Nf4 Nd7 Re5 Nfd3 Be2 Bg3 Ng6 Ne1+ Kf1 Bhf4 Ne4 Qcb2 Nd6 Nbc2 Ne8 Qdd2 Qb6 Qbb5 Rac3 Qc6 Bd1 Bh2 Rf5 Ne5 Rce3 N5d3 Rfe5 Bhg3 Nf6 Re8 h8Q Rd8 Qh1 Rb8 Qc7 Rb3 Qg1 Ra3 Ne8 Qbb6 Nh8 Qg6 Qd8 Qbc6 Qb6 Bh2 Re6 Bb8 Re7 Bhf4 R7e5 Qg2+
3rNn2/1q1rPk1b/2R1bP2/B2q4/1PRq4/Kr6/n1b1NPNr/4Q1Qb w - - 0 1 legal: proof: g4 e5 d4 exd4 a4 f5 h3 c5 a5 g5 a6 bxa6 Bg2 a5 Be4 a4 Bd3 c4 gxf5 cxd3 h4 g4 Kd2 Bh6+ Ke1 Bg5 hxg5 Qe7 Rh5 Qf6 Rh1 Qd8 Kd2 h5 c4 a5 b4 d5 e4 g3 f6 h4 g6 h3 c5 g2 c6 h2 c7 a3 e5 a2 e6 a4 g7 a3 Bb2 Ne7 Kc1 d2+ Kc2 d3+ Kb3 d4 g8N Nd5 e7 Be6 c8Q Nc3+ Qc4 Kf7 Qf3 d1R Qh3 d2 Qg3 d3 Ne2 g1Q Qh3 Qd5 Qg3 Qgg2 Qe5 Nd7 Nf4 Nf8 Qe1 Rd8 Bc1 Qgf3 Ng2 Qb7 Rg1 h1B Rf1 Rh2 Nh6+ Ke8 Nf5 Qfd5 Ng7+ Kf7 Qe5 Re1 Rg1 Re3 Ne8 Rf3 Re1 Rg3 Re2 d1B+ Rc2 d2 Qe1 Bh5 Qg1 d1B Bf4 Bg6 Bc7 Bh7 Ba5 Rd3 Nd2 Rdh3 Rc1 a1R Ne4 a2 Ng3 Rb1+ Ka3 a1Q+ Qa2 Rd7 Ne2 Rd3 Rd2 Bc2 Qe1 Rdh3 Rd4 Rd3 Rc4 Rb2 Qg1 Rd8 Re1 Qd1 Qa1 Rd4 Qc1 Na2 Qd2 Qa1 Rc1 Rb1 Qde1 Rb3+ Ka4 Qe4 Rc6 R4d7 Rc4 Qad4 Rc6 Rb2+ Ka3 Qed5 Rc4 Bd1 R1c3 Bdc2 Rc6 Rb1 R3c4 Rb3+
2n5/r3Q1Pk/2nNP2n/4n2r/1qbP2Bb/N3Prb1/Qr3N2/R3KbR1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 e5 fxe5 d5 Ba3 dxc4 axb5 Ke7 b6 Kd7 b5 Ke8 Bb4 axb4 d4 h5 g4 c5 b7 f5 b6 Kf7 e6+ Kg7 g5 c3 g6 f4 Nh3 f3 Ng1 c2 Bg2 c1N Ra4 b3 Qc2 b2 Qc4 h3 Ra7 f2+ Kf1 h2 Ra1 h4 Qd3 h3 Bd5 c4 Qc2 c3 Qf5 c2 Be4 Bd6 Ra2 Rh5 Qf4 Qf8 Ra7 Nc6 b8Q+ Nge7 b7 Nd3 Ra5 c1B Qh4 Ra7 Qg4 Bg3 Bf3 Nde5 Qh4 Bg5 e3 Bd7 Qe8 Nc8 b8N Qb4 Na3 b1R+ Ke2 f1R Bg4 Rf3 Na6 Rb2+ Kd1 Kh6 g7 Kh7 Nc5 Bd8 Qg5 Bf6 Qf4 Bfh4 Qe7 Be8 Qff6 Bg6 Qff7 Bd3 Nb7 Bc4 Nd6 Bf4 Ne2 Bfg3 Rg1 h1N Nc3 Nf2+ Ke1 h2 Ra4 h1B Qff6 Qc5 Nd1 Bg2 Ra5 Bgf1 Qf5+ Kh6 Qc2 Qb6 Qb3 Kh7 Qa2 Qb3 Bh3 Nfg4+ Nf2 Nh6 Bg4 Qb8 Rb5 Rd2 Rb1 Rb2 Ra1 Qb4+
Q1B3b1/2N4q/qP3B1k/q6n/1qP1q1RP/bPq3N1/Nr2n1QK/1q1n4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 Ra4 a5 Rc4 h5 Rc5 Ra6 Rg5 Rf6 Rg6 Rf5 gxf5 Nc6 Rg2 Nb8 Rg4 hxg4 Kf2 Kf7 e4 d5 h4 g5 e5 Kg7 f6+ Kh6 f7 a4 e6 g3+ Ke1 a3 c3 g4 e7 f2+ Ke2 d3+ Kd2 d4 e8N g2 Rh3 a2 Rh1 a1Q Qf3 g3 Qa8 f3 Kd1+ d2 Qe4 Nf6 Rh3 Ba3 Rh2 Qa5 Qa8 Nc6 Qa7 Be6 Qb7 Nh5 Bd3 f1Q+ Kc2 f2 Ne2 g1Q Nc7 g2 Ng3 Qe2 Bf5 f1Q b6 Rg8 f8Q+ Rg7 b3 Bg8 Bd3 Qe4 Bb2 d1N Kd2 Qh7 Be4 d3 Bf5 Nd4 Qfa8 Ne2 Bc8 Qgc5 Qe4 g1Q Qg2 Rf7 Rh1 Qgd4 Rg1 Qff4+ Ke1 Qa6 c4 Qb4+ Nc3 Qfe4 Qf2 d2+ Kf1 Rf3 Na2 Qdc3 Kg2 Qab1 Qf1 Rf2+ Kh3 Qba5 Qg2 Qcb4 Kh2 Qbd3 Nb5 Qdc3 Ba1 Ne3 Nc7 d1Q Bb2 Qdb1 Ba1 Nd1 Bb2 Qd2 Bf6 Qdc3 Rf1 Rf5 Rf4 Rd5 Rg4 Rd2 Qd5 Rc2 Qa8 Rb2
n1qR1r1r/4r2k/1qPr1PN1/Q6P/2Q4K/1B1n2q1/qPNB1r2/qb4B1 w - - 0 1 legal: proof: d4 b5 g4 c5 f4 cxd4 a4 h5 axb5 hxg4 Ra3 e6 Re3 Bd6 Re4 f5 e3 fxe4 f5 Bf4 exf4 Rh3 Be3 Rh5 Bc1 Rh8 Kf2 Kf8 Kg3 a5 c4 d5 h4 g5 b6 Kg7 b7 e3 f6+ Kh7 f5 a4 h5 a3 c5 a2 c6 a1Q f7 e5 f8Q e2 f6 e1R Nh3 d3 Be2 d4 Bf1 d2 Rh2 d3 Qc2 d1Q Nf4 e4 Na3 d2 Re2 Qa2 Rg2 Re2 Qc4 e3 Qe4+ Bf5 Qd5 Nd7 b8B Bb1 Qe8 Nc5 Nh3 Rf2 Qde5 e2 Rh2 e1R Bb5 Ne7 Qc7 Nd3 Qcd7 Qc8 Qdd8 Nd5 Qe2 Nb6 Qf1 Re7 Ba4 Qdb3 Qd6 d1R Qc7 Qa1 Rh1 Qba2 Ba7 Rb8 Nf4 Na8 Ng6 Rf8 Qg2 Rh8 Qa5 Rdd2 Kh2 g3+ Kg1 Nf4 Qc5 Rf3 Qc3 g4 Bd4 Qa6 Qc4 Rbf8 Bb3 Qc8 Nc2 Rd1+ Qgf1 g2 Kh2 Rd2 Qfd3 Rf1 Kg3 g1Q+ Kh4 g3 Ba7 g2 Qdd5 Qe3 Qd8 g1Q Qa5 Qe5 Be3 Qec7 Bf2 Qb6 Rh3 Qg2 Bg1 Rff2 Rd3 Qf3 Rd8 Rd6 Be3 Nd3 Bd2 Qg3+
1BR1r2Q/5R1P/N1B1P3/n1P2P1p/1nbr1n2/K1b5/1Qn3qk/bQr1n3 w - - 0 1 illegal: No proof kernel
kB1NbN1Q/1p1nBP1K/1n4P1/b5PB/1q4b1/bb4P1/r1RrQ3/1n3r2 w - - 0 1 illegal: Other
2Kbn3/n4kP1/1PbQr3/1pR1BB2/4P3/2bbP3/1N2nB2/1Q1qrqqR w - - 0 1 illegal: No possible last move
1r3Rb1/K3nP2/P1Q3bP/r1N1P3/nnN1n1B1/3qr2N/3Qpbk1/3q3R w - - 0 1 legal: proof: c4 a5 e4 f5 g4 h5 gxh5 d5 d4 f4 b4 axb4 Be3 fxe3 cxd5 e5 Qd2 exd4 Qc2 Ra6 Qd1 Ra8 Ke2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 Kf4 h4 g5 a4 c5 a5 c4 d6 d3 h6 e2 f3 Kg3 h7 d2 e5 b3 d7 g4 h5 c3 h6 c2 f4 c1R f5 b2 f6 Rc3 Nf3 Bc5 Rh2 Nc6 Qc2 d1Q Nfd2 Nb4 Nf3 Bf2 Nbd2 b1B Ng5 Re3 Ngf3 Ne7 Qa4 Bg6 Ng5 Ra6 Kc5 b5 Bh3 Bb7 Rh1 Bd5 Rc1 Bg8 Nc4 Ra8 Rf1 Kh2 Ne6 g3 Bg4 g2 Nf4 g1N Nh3 Rb8 a6 Kg2 Qa2 Nf3 Qd2 Ng5 Rb1 Rb7 Ra1 Rc7+ Kb6 Rc5+ Ka7 Ne4 Rb1 Nbd5 Ra1 b4 Rh1 b3 Rc1 Qa5 d8N b2 Nb7 b1N Rc3 Rb5 Nc5 Qa3 Rd3 Nb4 Rd8 Nbc3 Ra8 Be6 Rf8 Rg8 h8Q Ra5 Qh7 Na4 Qf7 Qc3 Qe8 Qd3 Qc6 Rh8 Rf7 Rd8 Rf8 Bg8 f7 Rb8
3bNq2/P1Q3q1/1B3Qr1/Pq1RP1nn/qnN2p2/1KNr1RP1/6kb/6b1 w - - 0 1 legal: proof: f4 g5 b4 a5 bxa5 d5 c4 dxc4 e3 e5 h3 g4 Be2 exf4 Bf3 gxf3 Qb3 Bc5 Qd1 Bg4 hxg4 Bf8 d4 Ke7 Kd2 Ke6 Kc2 Kd5 a4 Ke4 a6 b5 a5 h5 a7 c5 g5 f5 g6 c3 d5 h4 g7 c4 d6 b4 d7 f2 Qe1 f1Q Ra3 h3 Qe2 h2 Qd2 f3 Nh3 f2 Bb2 Rh6 Nf4 Qg1 Qc1 f1Q Ra4 Bc5 Ba1 Nf6 g8Q Nh5 Ng6 Qf8 d8N Na6 Ne6 Rd8 Nh8 Rd3 Qe1 b3+ Kc1 b2+ Kc2 Rg6 Na3 b1N Rb4 Nd2 Nd4 Nf3 Ndb5 Ng5 Qf2 Bb6 Qf7 Bd8 Bb2 Qa1 Qc7 Qgf1 Rg1 h1Q Qh4+ f4 g3 Kf3 e4 Kf2 e5 Qb7 Qb8 Qbg7 Nf7 Kf3 Rh1 Kg2 Bc1 Qe2+ Bd2 Qef1 Qc7 Qe2 Rd1 Qf1 Rbb1 Nb4+ Kc1 c2 Be3 Qf3 Bd4 Qd5 Nc3 Qb5 Nd6 Rf3 Kd2 c1B+ Ke1 Bb2 Bb6 Rd3 Ne8 Bc1 Rb3 Be3 Ke2 Bg1 Rd2 Bh2 Rd1 Rdd6 Rd5 Rd7 Kd2 Rdd6 Ncb1 c3+ Kc1 c2 Rf3 Rd7 Nc4 Rdd6 Kd2 c1B+ Kd1 Bb2 Kd2 Bd4 Nc3 Qa2+ Kd1 Bdg1 Kc1 Qaa4 Kb2 Qa1+ Kb3 Rd7 Qg4 Rdd6 Qe6 Rd7 Qf6 Rd6 Rc5 Rd3 Rd5 Qaa4+
R1R1rNk1/P1n2qr1/4Qb2/PKP1P3/4N3/b2N1nq1/p4b2/q3QqnB w - - 0 1 illegal: No proof kernel
3b4/nnk2rPn/Q2r1Q1p/rBPK4/b1P1rqBr/4P1N1/1n2Q1R1/2R5 w - - 0 1 legal: proof: f4 a5 g4 e5 fxe5 c5 b4 axb4 d4 h6 dxc5 Ke7 g5 Ke8 h4 Ra7 h5 Qf6 g6 Qd8 Bg5 Ra8 Nc3 Bd6 Nb5 hxg5 h6 Ra3 h7 Be7 Nd4 Ra8 Nf5 Bf8 Nh6 gxh6 Kf2 f5 Ke3 b5 Kd4 d5 c4 Kd7 a4 f4 e3 b3 g7 g4 a5 f3 e6+ Kc7 a6 b4 a7 g3 e7 b2 e8Q b1N Qc2 f2 Qd3 b3 Qf7+ Be7 Qff5 b2 Qg5 g2 Qdg6 Nf6 Qg3+ Qd6 Qh3 Nc3 Qe6 b1R Qh3 Bd7 Ra6 Rb6 Ne2 g1R Rh2 Nce4 Qe8 Ba4 Qg8 Nc6+ Kd3 d4 Qf3 Qf4 Rg2 Nd6 Qf8 Nb7 Ng3 Bd8 Be2 f1R Qf2 Rh1 Bg4 Rh5 Qe2 Rh4 Ra5 Rg8 h8Q Nh7 Qf6 Re8 Rb5 Rf2 Rb1 Re4 Rc1 Ra6 Qg8 Ra5 Qge6 Ra6 Kd2 d3 Kc3 d2 Kd3 Ra5 Kc3 Rb8 a8B Na7 Qa6 d1N+ Kd3 Nb2+ Kc3 Nd6 Bc6 Rb6 Be8 Nb7 Bb5 Qg5 Qg6 Rf7 Qf6 Re5 Kd4 Qf4+ Ne4 Ree6 Kd5 Ree7 Ng3 Re4 Nh5 Rbe6 Ng3 Rd6+
1r1R2Nr/3K3Q/4q2P/k1bNQR2/rq2nRn1/n3b1P1/n1P1p2P/1Br5 w - - 0 1 illegal: No extended proof kernel
3qR3/2k3nK/3bbrPQ/P2RqN2/nP1r2pb/4b2P/6Rr/1BNQr3 w - - 0 1 legal: proof: b4 b5 c3 a5 Qb3 axb4 Qd1 b3 e4 d5 f4 b4 cxb4 dxe4 g4 g5 fxg5 h6 g6 Qd6 g7 Qd8 g5 Nf6 g6 Bd7 Bb2 Ng8 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Ke3 f5 a4 e5 d4 c5 d5 c4 d6 b2 a5 c3 Ra4 f4+ Ke2 e3 Kd3 e4+ Kd4 e2 Ke5 e1B Kf5 g4 Ne2 f3 Qd4 c2 Nf4 c1B Nh5 e3 Ra2 e2 Qe3 f2 Nc3 b1R Ng3 Na6 Qh6 Nf6 g8R Nc5 Rb2 Bcd2 Na2 Be3 Nc1 Na4 Rg1 Kc6+ d7 Ne8 Rg2 Bd6 Rd2 Kc7 Rd5 Ra6 Ke6 Ng7+ Kf7 Rb3 Rf8 Rd3 Nf5 Rd4 Re8 Rh7 Kg8 Rc6 Rg1 Rb6 Bg2 f1R Be4 Bh4 Bb1 e1Q Rg3 Rh1 h3 Rh2 Rg2 Qg3 Qg5 Qe5 Qf4 Rh5 Qh6 Rg5 Ne7 Rf5 Kh7 Rf1 Nf5 Re1 Re6 Bf8 Re8 Rf6 Na2 Bd6 Nc1 Qde7 d8Q+ Kb8 Qd7 Qd8 Qc6 Be6 Qc2 Kb7 Qd1 Kc7
4R1r1/2qBNr2/b1P2Q2/1K1P3P/n7/bn2pq2/2qN1QPr/Bq2r1Bk w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 g5 Bd3 gxf4 Bc4 Qd7 Bf1 Qd8 b4 c5 b6 h5 Qxh5 Nc6 b5 Bh6 Ra4 Nb8 Rb4 Bf8 Qh7 cxb4 Ke2 Kd7 d4 Kd6 c4 e5 h4 a5 d5 f5 b7 e3 Kd3 e4+ Kd4 f3 b6 e2 Be3 e1R Bc1 e3 Bb2 b3 Rh2 f4 Ba1 a4 Qg7 b2 Bd3 f2 Nc3 f1R Bh7 b1Q Bd3 f3 Nd1 f2 Nc3 a3 Nce2 a2 Rh1 Na6 b8B+ Qc7 b7 Nh6 Nf4 Qc2 Ng6 Nc5 Bf5 Na4 Bd7 Rg8 Nf3 Ra6 Bb2 a1Q Ne7 Qab1 Ba1 Ra7 Rh3 Rh1 Nd2 f1Q h5 Qe2 Rh4 Qf3 Re4 Rh2 Qh8 Ng4 Qg7 Nf2 Qg5 Nd3 Qh4 Nab2 Qf2 Nc1 Re5 Qce4+ Kc3 Nb3 Kb4 Na4 Kb5 Qbc2 Ng6 Qb1 Re8 Qec2 Ne7 Qc3 c5+ Ke5 c6 Kf4 Nf5 Ba3 Ne7 Qcc1 Bf6 Qcc2 Ba1 Qd6 Bc7 Qe5 b8Q Bb7 Qg1 Kg3 Qd8 Qef4 Bb8 Qc7 Qf1 Rh4 Qf2+ Kh2 Bd4 Kh1 Ba1 Qc8 Bh2 Qc7 Bg1 Rh2 Rf8 Rg7 Rh8 Ra8 Qf8 Rf7 Qh6 Rg8 Qf6 Rg4 Rc8 Rg8 Re8 Ba6+
5Kr1/1NB3P1/Qn4kr/7R/3b1b1P/n1Pn1Pqb/3n1p1q/1QQbR1B1 w - - 0 1 illegal: No possible last move, all moves rejected
1nnb4/2bP4/2n1R1Q1/1nkp1Q2/P1q1rN2/1P1Br2N/P2Nb3/2qbKB2 w - - 0 1 illegal: No proof kernel
N2B1kb1/2bP1P2/P1Q2bK1/n2q4/p1P3q1/1RNrB3/Qbn1N2n/5nr1 w - - 0 1 illegal: No proof kernel
2K5/3NbPP1/2q1br1Q/6b1/1R2b1P1/1b1p1Qbn/1Pq3Qb/1Bn1kNR1 w - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 a4 g5 h4 c5 hxg5 b6 Bd2 Ra7 Bb4 cxd4 c5 Rc7 c6 Rb7 Bc5 bxc5 Rh3 Nf6 Rh1 Rb5 axb5 Ng8 Ke2 Kf7 g4 Ke6 f4 Kd5 c7 Kc4 f5 h5 f6 d5 f7 e5 b6 d3+ Ke3 h4 g6 a4 b7 a3 g7 h3 Ne2 h2 Nbc3 a2 Rc1 a1Q Qd2 d4+ Kf2 e3+ Kf3 e4+ Kf4 Qb1 Ke5 Na6 b8Q Qd7 Nf4 e2 Qb6 e1B Bg2 e3 Rd1 e2 Bh3 Qc6 Qa5 Ne7 Qc2 d2 Qg6 Nd5 Qe4 Be6 c8Q Bg3 Rde1 d1B Na4 Qc2 Rhg1 h1B Qb8 Bh2 Qbc7 Rh6 Rgf1 Rf6 Rg1 Nab4 Qf5 Be7 Qh5 Be4 Qh6 Na2 Bg2 Nc1 Qa8 d3 Nb6+ Kb3 Nd7 c4 Qcc8 c3 Qcb7+ Nb6 Ref1 e1B Bh1 Beg3 Re1 B4d5 Re4 Bf3 Ra4 Bfe4 Bf3 Bc4 Bd1 Bcd5 Kd4 Bc4 Ne2 Bc7 Ng3 Bcd5 Nf1 Bc4 Qba6 Nd5 Qd2 Nf4 Qg2 Nh3 Qf3 Bb5 Rc4 Ba4 Rb4+ Ka2 Qg2 Kb1 Qf3 Bab3 Q8b7 Na2 Qg2 Kc1 Qf3 Qd2 Bc2 Qd1 Bb1 Qc2 Qg2 Kd1 Qba8 Nc1 Qb6 Qb7 Qd6 Ke1 Kc5 Qc8 Kb5 Qb7+ Qb6 Qc6+ Ka6 Qd2 Ka7 c2 Qa6 Na2 Qb6 c1B Qe3+ Qe2 Qh6 Bg5 Qb7 Nc1 Ka8 Qd5 Qc6 Qf2 Kb7 Qc2 Kc8 Qdc5 Qd5 Qd6 Qf5 Qdc6 Qff3 Bcg3#
2qB3b/r3P1k1/1NK2pb1/7b/4P2P/3b1b1n/Q1RQqPR1/b1b1N1nR w - - 0 1 legal: proof: b4 b5 g4 c5 e4 h5 d3 hxg4 a4 cxb4 axb5 Qc7 Ke2 Qb6 Ke1 Qd8 Bg2 a5 Bf3 e6 Bg2 Ra7 e5 Rc7 Bf3 Rc4 Bd5 Re4+ dxe4 exd5 Kd2 g5 Kd3 d4 Kc4 d5+ Kd3 f6 h4 Kf7 c4 a4 c5 a3 b6 g3 c6 g2 b7 g4 c7 a2 e6+ Kg7 e7 b3 Qe2 g3 Qb2 Nh6 Rh3 Nd7 b8R Ne5+ Kd2 d3 Ke3 d2 Kd4 d1B Kc5 d4 Na3 d3 Nf3 g1Q Kb5 g2 Kc5 d2 Nc4 Nhf7 Na5 Ng5 Qa3 b2 Kb5 b1B Nc4 Bd3 Qa4 Bf5 c8Q Qe1 Ng1 Qe2 Kc5 Bg6 Re3 Nef3 Qcd7 Nh3 Rb2 Qc8+ Kb6 Rh5 Rc2 Ra5 Ba3 Ra8 Bb4 Ra7 Rb1 a1B Ba5 Ne1 Nf3 g1B Qd8 Bh2 Qa2 Bf4 Kb5 Bg5 Bc7 Bh6 Kc6 Bf4 Nb6 Bg5 Nd4 Nf3 Qd6 Nfg1 Nf3 Bf4 Ne1 Qf3 Qc5 Kh8 Rc4 Bg7 Ng2 Ne2 Qg5 Kg8 Rbc1 Bh8 R4c2+ Kg7 Rb1 Qfg4 Rg3 Qh5 Ne1 Qhg4 Nf3 Qh5 Rg1 Qhg4 Rh1 Be3 Rb5 Neg1 Ne1 B1e2 Qf4 d1B Rg5 Bc1 Qd2 Qf3 Rg2 Qe3 Kd6 Bh5 Bd8 Bdf3 Kd5 Qe2 Kd6 Qb8+ Kc6 Qc8+
4B2B/rPPnR3/rkp3nN/2R2n2/2P3Q1/1n1q1P2/1bqB4/nn1rQ2K w - - 0 1 legal: proof: d4 f5 g4 b5 f4 h5 a4 bxa4 d5 hxg4 d6 Bb7 Nd2 Bf3 exf3 c6 Ne4 Qc7 dxc7 fxe4 Kf2 e5 Kg2 d5 h4 Kd7 c4 a5 b4 g5 h5 g3 b5 a3 h6 e3 f5 g4 h7 a4 f6 d4 b6 e4 f7 a2 b7 d3 Qc2 a3 Rh2 e2 Rh5 e1N+ Kh1 e3 Bd2 g2+ Kh2 e2 Rb1 a1N Nh3 g1N Rd1 a2 Bh6 g3+ Kh1 d2 Nf2 g2+ Kh2 Nh3 Qg6 g1R Qg5 Ne7 Qg6 Bg7 f8Q Nb3 Ng4 a1N Re5 Nf5 Rb1 d1Q Be3 Qc2 Qg5 Ra7 Re7+ Kd6 Nh6 Nf4 Bb6 Nd7 Qg4 Ng6 Bg2 Bb2 Ba5 Kc5 Bd2 Kb6 Bh3 Rg8 Qf6 Rga8 h8B Qd3 Qg7 Nec2 Qe5 e1Q Qeg3 Qee4 Qe1 Na3 Rd1 Rg2+ Kh1 Ra6 Rb1 R8a7 Rd1 N1c2 Ra1 Nb1 Ra5 Nca1 Rc5 Rg3 Bf1 Qc2 Bd3 Qd4 Be4 Qdd3 Bd5 Rg2 Bf7 Re2 Be8 Re5 Qf1 Re1 Qfg1 Rc1 Qe1 Rd1
3b1B1b/rb5k/4K1q1/P3N2P/1r3pbP/2q1R2Q/2n2PqB/1qR1B1Qq w - - 0 1 illegal: No possible last move
Q4Nk1/3r4/1rp1qPbn/1n4n1/PP3K2/Qr1P1Q1R/n1NR2q1/q1q1B3 w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 exf5 g5 c3 gxh4 Bd3 b3 Ba6 Nh6 Bf1 Ng8 Ke2 d5 Ke1 b5 Na3 b2 Qg4 b4 Nb1 b3 Qd1 Bg7 Bc4 dxc4 Rh3 Be5 Rh2 Bd6 Rh1 Bb4 cxb4 Ra5 Kf1 Ra3 Ke1 Ra8 Ke2 Kf8 Kf3 e5 a4 h5 g4 e4+ Ke3 h3 f4 h4 d3 c3 f6 c2 f5 c6 g5 h2 f7 h3 g6 Na6 Nc3 b1R Nd5 b2 Ne7 Nc7 Nf3 Qd5 Rf1 h1Q Ra3 h2 Ra2 Rb8 Bd2 c1Q Kf4 e3 Ne5 e2 Kg5 e1N Nc4 Nh6 Na3 Rb6 Qb3 Rh7 Nc2 Qhg2+ Kf4 h1Q Qa3 Qe6 Rf3 Nb5 Rg3 Nf3 Rh3 Qcg1 Be1 Ng5 Ng8 Bd7 Nf6 Be8 Nd7+ Kg7 Nf8 Kh8 Bh4 Qd1 Be1 Qc1+ Ne3 Ra1 f6 b1N Rd2 N1c3 Nc2 Na2 Nd7 Rb1 f8Q+ Ng8 Qd6 Rb3 Qd5 Qhg1 Nf8 Nh6 Qf3 Rd7 g7+ Kg8 Qg3 Bg6 Qf3 Kf7 g8Q+ Ke8 Qh8 Kf7 Nh7 Q1f1 Qa8 Qa1 Nf8 Kg8 Bg3 Qfd1 Be1 Qdc1
4b1r1/2P1k3/rBPbn2r/2N3rP/2R1Q1nK/2b3Pp/RQ1b2n1/B2B3b w - - 0 1 illegal: No proof kernel
q1qBK3/3B2BQ/1P1np1N1/n2Qnq1b/1P2Pr2/6qq/1P1q2k1/1qRR4 w - - 0 1 illegal: No proof kernel
2qn2RQ/1k5n/2p1r1N1/3PnK2/1PP2q1N/QPr5/n1nq2BQ/n2n2B1 w - - 0 1 legal: proof: g4 f5 e4 fxg4 h4 d5 Nc3 dxe4 Rh2 g5 Rh1 g3 Nb1 g4 b3 Bh6 b4 Bg5 hxg5 b5 Bc4 Be6 Bf1 Bb3 axb3 Qd5 Ra5 Qd8 Ra4 bxa4 Ke2 Kd7 Ke3 Kc6 Kf4 e5+ Kf5 a5 d4 h5 c4 e3 f4 e4 d5+ Kb7 g6 a3 g7 a4 Qe1 g2 Qd1 h4 Bb2 a2 Be5 a1Q Bd3 a3 Bd4 h3 Kg6 h2 f5 a2 f6 e2 f7 e1Q f8Q g3 Qf5 e3 Qc1 e2 Qd2 Qc8 Nc3 Qac1 Nf3 a1N Ba7 g1N Nb1 g2 Ng5 Nc6 Qd7 Rh3 Qe6 Nf6 g8Q Nd8 Qb2 c6 Qh8 Nf3 Nh7 g1N Kf5 Qed2 Be4 e1N Nf8 Nh7 Bc5 Ne2 Bg1 Ne5 Bg2 Nec2 Ng6 Nc3 Qa3 Na2 Qd7+ Qc7 Qdg7 Rc3 Qh6 Rc8 Qh3 Qb8 Qh4 Rc7 Qg3 Re7 Qf2 Re6 Qg3 Qe2 Nd2 Qc8 Nf3 Qed2 Nfh4 Qf1+ Bf2 Qfc1 Rg1 h1N Bb6 Nf2 Qh2 Kb8 Rf1 Nd1 Bg1 Kb7 Rf3 Qe1 Rg3 Qce3 Ne7 Qh6 Rg8 Qed2 Neg6 Qhf4+
2k2r2/Qb2b1nR/4pP1N/1q6/2n1P1Rq/Bq3n1Q/P1NPKpr1/b4Q2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 b4 axb4 gxh5 Bf5 Kf2 Bd7 Ke1 Bc8 Bh3 Qg5 Be6 fxe6 f5 Qf6 Qc2 Qg5 Qc4 Qd8 Qf4 exf4 h4 Kd7 e4 b5 d6 c5 h6 g5 h5 g4 h7 f3 h6 f2+ Kd1 g3 Ba3 b3 Bb2 b4 Na3 g2 Nb5 c4 Rh4 c3 Rh5 c2+ Ke2 c1B Rb1 Ne7 Na7 Nbc6 Ba3 b2 Nf3 b3 Ng5 Ne5 Nb5 Rg8 h8Q Bb7 h7 Kc8 Qg7 Nc4 h8Q Rb8 Ra1 b1Q Rh7 b2 Nf7 Qc2 Nd4 b1Q Nh6 Qcb3 Qf7 Bb2 Nc2 Bc3 Qfg7 Qb5 Qf7 Q1b3 Rg1 Ba1 f6 Nf5 Qe7 Ng7 Qf7 Be7 d7+ Kc7 Qh5 Qe8 Qh1 Qg6 Qh3 Qgg5 Qd3 Rbc8 d8Q+ Kb8 Qe8 Qh4 Qed7 Rcf8 Q7d4 Kc8 Qa7 Qd7 Kd1 Qdb5 Qf1 Ne8 Ke2 Rg6 Rh1 Ng7 Rh3 Rg4 Rg3 Rg6 Rg4 g1N+ Kd1 Nf3 Ke2 Rd8 Qe8 Rg5 Qh5 Rg6 Qf5 Rf8 Qh5 Qg3 Qhh3 Qh4 Rf4 Rg1 Rg4 Rg2
4NKQn/r1nrB2P/1qp1b1b1/QR2PB2/P1q2kr1/8/1pP1n2q/2R1B3 w - - 0 1 legal: proof: d4 e5 b4 a5 g4 axb4 f4 f5 e4 h5 Nc3 Bd6 exf5 hxg4 Na4 e4 Nb6 Be5 dxe5 Ra5 Na8 Rxa8 Kd2 Ke7 Ke3 b5 Kd4 g5 Kd5 b3 h4 e3 a4 c6+ Kc5 d5 f6+ Ke6 h5 Kf5 f7 b4 f8B e2 h6 e1Q h7 b2 Qf3 b1R Bb2 b3 Qf2 g3 Bh6 d4 Bg2 g4 Nf3 d3 Nd2 Qf1 Bd4 b2 Bg5 Rd1 Bf6 Nh6 Qe1 Be6 Bf3 g2 Be7 g1Q Rh4 g3 Bf2 g2 Ne4 d2 Nf6 Nf7 Rc1 Qh2 Ne8 g1N Bg2 Rg8 Bh3+ Rg4 Bg3 Ne2 Bf2 Ke4 f5 Qc7 f6 Nh8 f7 Qb7 Kd6 Ra7 f8Q Qb6 Qg8 Na6 Bg3 Nc7 Bf2 Rf4 Bf5+ Kf3 Bg3 Rg4 Rh3 Ke3 Bf2+ Kf4 Rb3 Qfh1 Rb5 Qe4 Qh1 Qc4 Qd5 Rh1 Be1 d1B Qc5 Rf1 Qb4 Rf2 Qa5 Rf3 B7h4 Rd3+ Ke7 Rd7+ Kf8 Ng3 Bf2 Bf3 Bf6 Ne2 Be1 Bfd5 Be7 Bf7 Rd1 Bg6 Rc1 Be6
8/r3P1kq/2P3np/3bbrB1/pP4q1/r4q1Q/1R2B1Pb/KNN1B1Qn w - - 0 1 legal: proof: f4 c5 b4 g5 c4 b5 h4 e5 a4 exf4 axb5 Na6 Ra3 Nb8 d4 cxd4 Rc3 dxc3 hxg5 Qf6 Qd4 Qb6 Qd1 Qd8 e4 d5 b6 a5 b7 f5 g6 c2 Kd2 f3 Kc3 f2 Kb2 a4 g7 Kf7 c5 f4 e5 f3 c6 d4 Bh6 c1B+ Ka2 d3 Be2 f1R Bf4 f2 Bh2 d2 Ka1 Na6 b8B Qd3 Nf3 Ra7 Bc7 Bb2+ Ka2 Ne7 Bd6 Be6+ Qb3 d1Q Rg1 Ng6 Ne1 Bd5 Bf4 Nc5 Bg5 Ne4 e6+ Kg8 Be5 Bd6 e7 Ng3 Bc3 Nh1 Qc4 Qe4 Nd3 Bh2 Be1 Bbe5 Nc1 Qdd3 Qb3 Qg4 Qc4 h6 Qb3 Kf7 Qc4 Rf8 g8Q+ Ke8 Qe6 Rf3 Qc8+ Kf7 Qb3 Rf5 Qb7 Rf3 Qb6 Kg7 Qd4 Qde4 Ka1 Rf5 Qh3 Qc2 Bed2 Re1 Bc3 f1Q Bcd2 Rd1 Be1 Qff3 Rf1 Rd3 Rf2 Rb3 Bf1 Qc5 Rb2 Qa5 Qg1 Ra3+ Na2 Qd8 Bd3 Qh8 Be2 Rc3 Nc1 Qh7 Be3 Rb3 Bg5 Ra3+
7b/1p1qQ1RN/P2nbPP1/1n3r1q/KQ2R1r1/2Bn2pr/kB4P1/1R1b4 w - - 0 1 legal: proof: c4 a5 h4 g5 b4 axb4 Bb2 d5 cxd5 e6 Ba3 g4 Bc1 Qg5 hxg5 Ra3 Rh3 Ra4 Rh1 Ra8 e4 Ke7 d4 Nd7 d6+ Ke8 d5 Nb8 Nc3 Ra7 Be2 Ra8 d7+ Ke7 Bc4 f5 d6+ Kf7 Bd5 exd5 e5 Nh6 Ne4 fxe4 Ba3 Ng8 Bb2 Ke6 Bc1 Kf7 Kd2 Ke6 Kc2 h5 Kb3 c5 d8Q h4 a4 g3 f4 e3 g6 h3 a5 c4+ Ka4 c3 a6 b3 d7 d4 f5+ Kd5 e6 Kc4 e7 c2 e8R d3 Ne2 h2 Qe7 b2 d8B b1Q Qe5 d2 Qf6 Be6 Nd4 e2 Qg1 e1R Qe3 d1B Qg7 Nf6 Ba5 Nc6 Qf4 Re4 Rb8 Ne8 Qg5 Nd6 Nf3 Qb5+ Ka3 Rh3 Re1 h1Q Q7e7 Rg4 Re4+ Nd4 Qh4 Qd7 Rb1 Bg7 Rg8 Bh8 Bb2 c1N Ng5 Nd3 Bac3 Rc8 f6 Rc5 Nh7 Rf5 Rg7 Qh2 Re2 Qh1 Rc2 N4b5+ Ka4 Bf3 Re2 Qh2 Ka5 Kb3 Re4 Ka2 Ka4 Qh1 Bd4 Qc1 Bdc3 Qh6 Qg5 Qh5 Qd2 Nf4 Qd4 Nd3 Qb4 Bd1+
5rn1/n2kpB2/4q1P1/1Rrp1bQ1/PRbB1rN1/7P/1P3K1B/n3Qnn1 w - - 0 1 illegal: No proof kernel
5rn1/2NPP1q1/1q1n4/R3p1Nk/rQp2Bbn/6P1/1PQ1Bn2/2K1nB1b w - - 0 1 legal: proof: h4 d5 d4 e5 dxe5 b5 a4 bxa4 c3 g5 Qd3 gxh4 Qc2 d4 Qd1 d3 e4 Kd7 e6+ Kc6 e5 f6 e7 Bb7 e6 Bh6 Qc2 Be3 Qd1 Bd4 cxd4 Bc8 Ra3 Qd6 Rb3 Qd5 Rb5 Qd8 Re5 fxe5 Kd2 Kd5 e8B Ke4 f4 Kf5 d5 c5 e7 h5 d6 a5 Nc3 a3 Nb5 c4 Qb3 Kg4 f5 a2 f6 a1Q f7 a4 f8Q a3 Nh3 a2 Nc3 Na6 Qf2 Nc5 Qe1 Qb6 Nd1 Ra4 Nf4 h3 Qf2 h2 Qc2 h4 Qc3 h3 Rg1 h1N Ne6 h2 Bd7 Ne4+ Ke1 Kh5 Bf4 Nhg3 Qfc2 h1B Qb4 Nf5 Nc7 d2+ Ke2 Qb1 g3 a1N Nf2 d1N Nh3 Nh4 Ng5 Ndf2 Bc6 Be6 d7 Nd6 Kd2 Bg4 Be2 Qf1 Be4 Qh3 Kc1 Qh2 B4d3 Qh3 Qcd2 Nc2 Bf1 Ne1 Bde2 Qg2 Qd3 Qa8 Qc2 Qf8 Rg2 Nfe4 Rf2 Qf6 Rf3 Nf2 Rd3 Qg7 Rd5 Nf6 Rb5 Rf8 Ra5 Ng8
q1q1rK2/2PpN3/8/1R1PPQ1P/r1p2r1n/n1k5/B1BbR1b1/rQ3rR1 w - - 0 1 illegal: No possible last move, all moves rejected
q1rrb3/K1Q5/PNQ5/1R2r3/4PPB1/1nN3kp/1r1bPp2/1Bn1qn1Q w - - 0 1 illegal: No possible last move
5qR1/p1r1nq2/2r1qP2/BPQq2Bk/1b2N3/bN1P3p/P1K4b/B2n3Q w - - 0 1 legal: proof: c4 d5 b4 g5 h4 gxh4 Na3 b5 cxb5 Bb7 Rb1 Ba6 Rb2 Bc8 d4 Bf5 Rc2 f6 Rc4 Bd3 exd3 dxc4 Be2 f5 Bf3 Nc6 Bd5 Nb8 Be4 fxe4 Kd2 Kf7 f4 Kg6 g4 e5 b6 h5 b7 c5 d5 e3+ Kc3 e2 g5 e1B+ Kb2 c3+ Kb3 c2 d6 h3 b5 c4+ Kb2 c3+ Kb3 h2 d7 h4 Nf3 h3 f5+ Kh5 g6 e4 g7 e3 f6 e2 Be3 c1B Bg5 c2 Bf4 Nc6 b8B Na5+ Ka4 Bfb4 Nd4 Ne7 g8Q Nc4 Kb3 Rh7 Qg7 Bg3 Bbe5 Nb2 Nc4 Qf8 d8B Rc8 Bg5 Rc6 Rg1 h1Q Nd6 Bh2 Ba5 Qg2 Qf1 e1Q Ne4 Nd1 Qg8 Rg7 Qc4 Bca3 Qc5 Qee2 Qe1 c1Q Qf1 Qh1 Rg3 Qhf3 Qh1 Qcf4 Rg2 Q4g4 Rg1 Qd7 Rg3 Qee3 Kc2 Qe6 Rg2 Qef7 Nb3 Qf5 Ba1 Q5d5 Bf4 Rh7 Rg8 Rg7 Bg5 Qe2+ Ned2 Qee6 Ne4 Nf5 Be5 Q7e8 Nd4 Rgc7 Nb3 Qe8f7 Ba1 Ne7
q1N3b1/1K3P1r/P2Br3/3Nr3/b2Pp1nk/1Q1rR1b1/nP1b1Qp1/R6N w - - 0 1 illegal: No possible last move
3B4/1qrb2BK/3P1b2/p3nq2/2QR2bk/NB1P1r2/Pp1NP3/2bQ2qb w - - 0 1 legal: proof: f4 d5 b4 c5 g4 e5 d3 exf4 Nd2 h5 c3 hxg4 Rb1 Nc6 Rb2 Nd4 cxd4 Be7 Rc2 Bf8 Rc4 dxc4 bxc5 Qb6 Kf2 Qf6 Ke1 Qd8 Kf2 Ke7 h4 Kf6 c6 a5 h5 Kg5 d5 b5 h6 f5 d6 c3 c7 f3 Kg3 f2 h7 b4 Rh3 c2 Nb1+ f4+ Kh2 b3 Nd2 g3+ Kg2 b2 Kf3 g2 Ke4 f3 Rh4 Nh6 Qe1 Ra7 Rh2 Ng4 Qd1 Qd7 Rh4 Qf5+ Kd4 Be7 Rh1 Ne5 Nh3+ Kh4 Ke3 g1Q Bg2 g5 Nb1 g4 Na3 Bd7 c8Q Bf6 Qc4 Rf8 h8B Rc7 Bg7 f1B+ Nf2+ Qh2 Rg1 Qh1 Ne4 f2 Nd2 Rf7 Bd5 Bh3 Rg3 f1B Rf3 Rf8 Rf4 Bfg2 Rd4 Be4 Bg8 g3 Bf7 g2 Be6 Qg6 Kf4 g1Q Bd5 Bhg4 Bg8 Bh5 Bf7 Bd5 Be6 Qf7 Kf5+ Bg4+ Kf4 Qh5 Qa4 Qh7 Nf1 Be7+ Bf7 Ra8 Bd2 Be4 Bb3 c1B Qc4 Bb7 Be3 Qc6 Nd2 Qb6 Qdc2 Bh1 Qd1 Kh3 Bf2 Qb7 Bh4 Rf8+ Bhf6 Bd8 Kg5 Rf7 Be7 Rf3 Bef6 Qf5+ Kh6 Qg5+ Kh7 Kh4 Bf8 Be7 B6g7 Bf6 Be7 Qf4 Bd8 Qf5+
3Br1q1/1R6/QpPq1n1r/rq6/b1p1q1P1/2NP2Nq/BbPk4/2N2K1Q w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 c5 b4 g5 b5 Nc6 bxc6 gxh4 Ra3 f5 Rb3 a5 Rb4 f4 Qg4 f3 Qxf3 axb4 Qe2 Bd7 Qd1 Bc8 f4 Kf7 g4 Kf6 a5 h5 d3 e5 a6 e3 f5 Kg5 a7 Kf4 f6 c4 f7 b6 Rh2 b3 Nd2 h3 Nb1 h4 Nc3 b2 Be2 b1Q Qd2 e4 Kf1 Ba3 f8Q+ Nf6 Qd1 Qb5 Na2 Rh6 Bf3 Bb2 Qa3 Qd6 Qa6 Bb7 Re2 h2 Rf2 Re8 a8N h1Q Nc7 h3 Qe1 h2 Nd5+ Kg5 Ndc3 Kf4 Bd2 Rh5 Nc1 Qg2+ Ke2 h1R Qd1 Qg3 Kf1 Rc5 Re2 Rh6 Be1 Qh2 Bh4 Qh3+ Bg2 Qb4 Qe1 Ra5 Qd1 Qb3 Re1 Qb5 Nge2+ Ke5 Ng3 e2+ Kg1 e3 Bd5 Kd4 Be6 Bc8 Rf1 Bb7 Bc8 e1Q Qf3 e2 Qh1 Qd2 Rf5 Ke3 Re5+ Kd4 Re7 Qdg5 Rd7 Ke3 Rf7 Ba8 Rb7 Kd2 Kf2 Qg8 Kg1 Nh7 Bd8 Nf6 Kf2 Qhh5 Kg1 e1Q+ Kg2 Qee5 Kf1 Qh3+ Qg2+ Ke3 Ra7 Qde7 Qb7 Qa6 Qc7 Qh2 Qh1 Bb7 Qd7 Kd2 Qdd5 Qe4 Qb5 Qd6 Qa4 Rae5 Qa2 Ba8 Rd7 Qa5 Ba6 Bb7 Bb5 Ba6 Ba4 Bb5 Rb7 Rc5 Bb3 Qh3+ Kg1 Qb4 Qa6 Ba4 Ba2 Ra5 Kf2 Qb5 Kg1 Qhh5 Kf1 Qh3+
1nbr1r2/4q1qP/2R2nP1/1P4kr/NR1pKpB1/PQ2n1R1/2r5/1Q2rN2 w - - 0 1 illegal: No possible last move
1qnB1n2/3p1P1q/p1P1N2Q/b4NB1/kr2QPn1/1Rq2B1K/Pn6/1n4b1 w - - 0 1 legal: proof: d4 g5 c4 b5 h3 bxc4 h4 gxh4 Na3 c5 Bh6 c3 Bd2 a6 Nb1 c4 Bc1 Ra7 Rh2 Rc7 Rh1 Rc5 dxc5 Qa5 Nd2 Qb6 Nb1 Qd8 f4 f5 b4 Bh6 Nd2 Bb7 Rb1 Bf3 exf3 Bg7 Rb2 Qc7 Nb1 Bf8 Re2 Qb6 Re4 fxe4 Nd2 Qd8 Kf2 e5 g4 h5 Kg2 c2 g5 c3 f5 e3 f6 e2 b5 e1B f4 e4 b6 h3+ Kh2 e3 b7 e2 f7+ Ke7 g6 h4 g7 Nc6 b8B Ne5 c6 Ng6 Bb2 c1N Ba7 Kd6 Bb8+ Kc5 Qc2 Kb5 Nb1 Bc5 Be5 Qb8 Nf3 Nf8 Qf5 c2 Qd3+ Ka4 Qd2 Ne7 g8Q Nb3 Bg2 c1N Qg4 Nc8 Qd5 Ba5 Ng5 e1Q Qh5 Nd3 Ne6 Qc3 Qh6 Nd2 Na3 Nb1 Nc2 Be3 Ba1 Nb2 Ncd4 Rg8 Bf3 Rg3 Rd1 Bg1+ Kh1 h2 Rd3 Rh3 Kg2 h1N Bc7 Nf2 Bd8 Ng4 Qe4 Rh1 Re3 h3+ Kg3 h2 Kh3 Bf2 Bg5 Re1 Bd8 Bg1 Bg5 Rd1 Nf5+ Rd4 Bd8 Rb4 Bg5 Qc1 Rb3 h1Q+ Kg3 Nc4 Baf6 Nb2 Bd8 Qh5 Kg2 Qc3 Kg3 Qg6 Kh3 Qh7
1K3nr1/n1rB2Pn/nQ1rrbPB/Pn3pQ1/R7/4q1pB/3N2P1/2Nk4 w - - 0 1 legal: proof: b4 a5 h4 axb4 a4 g5 d4 e5 f3 exd4 Ra3 c5 Bd2 d3 Ra1 g4 Bc1 b6 Ra3 g3 Rc3 Qg5 hxg5 Bb7 Rc4 Bc6 Rd4 cxd4 Bf4 Bd5 Bd2 Be6 Bc1 Bg4 fxg4 Ra7 Bd2 Ra5 Bc1 Ra8 Kd2 Ke7 e4 Ke6 c4 Ke5 a5 Kf4 e5 h5 g6 f5 g5 d5 g7 h4 e6 b3 c5 h3 g6 b5 c6 h2 c7 b2 c8Q b4 e7 b3 e8B Nf6 Qd8 Nbd7 Qc2 Rg8 Nc3 b1Q Qb2 Rc8 Nf3 Rc7 Ng5 Nh7 Be2 Be7 Nf3 Ndf8 Nh4 Bf6 Qa2 b2 Re1 h1N Nb5 Nf2 Nf3 Ne4+ Kd1+ d2 Na7 Ke3 Rh1 Nc5 Qa3+ Qd3 Bd7 b1R Rh4 Na6 Qc5 Rb6 Nb5 Re6 Nc3 Kf2 Rg4 Qe3 Kc2 d1R Kb3 d3 Ka4 d4 Kb5 d2 Qb6 d3 Re4 Qd4 Na2 Qe3 Ng1 Ke1 Bg4 Rd6 Nf3+ Ke2 Be6 Re1 Bh3 d1N Bd7 d2 Rg4 Nb2 Rh4 d1N Nd2 Nd3 Ra4 Ndb4 Qe7 Nc6 Qd8 Ba1 Qg5 Bf6 Qb7 Qf4 Kb6 Nc3 Qb8 Nb5 Qa7 Rc8 Kb7 Qe3 Qc5 Nca7 Qb6 Rc7+ Ka8 Nb4 Kb8 Kd1 Bb2 Qf3 Nc1 Ree6 Be5 Qe3 Bf4 Be5 Qh4 Ba1 Bh6 Bf6 Qg5 Na6+
q2k4/8/3nQNr1/1nbn2q1/2Pn1P1R/pp1q2N1/rP1NBQqP/5RK1 w - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 h5 g4 hxg4 d4 cxd4 Bh6 b4 Bd2 Ba6 Bc3 Bb5 axb5 dxc3 f4 g5 Kf2 d5 b6 e5 b7 a5 f6 e4 Nh3 a4 Qd2 c2 Kg2 c1Q Be2 g3 Ra2 b3 Ng1 g4 Qc2 d4 Qd1 e3 Bd3 e2 Nc3 e1N+ Kf1 g2+ Kf2 g3+ Ke2 Bc5 Qd2 Nd7 b8N Qa1 Bf5 Nc2 Nd5 d3+ Kf3 Nh6 Nc3 Nd4+ Ke3 Nb6 Bg4 Rg8 Nb1 Rg6 Be2 Nf7 Nd7 Nd6 f7+ Ke7 Qe1 d2 Nf6 d1Q Nd2 N4b5+ Kf3 Nd5 Qf2 Qg8 Ra3 Kd8 Ra2 Qf1 Ra3 Qad1 Ra1 Qe8 f8Q Qb1 Qf7 Ra7 Nh3 g1Q Qe6 g2 Ng5 Qc6 Nge4 Qa8 Ng3 Qf5 Rc1 Qg5 Rc3 Qb1 Qe1 Qc2 Qf1 Qd4 Qe1 g1N+ Kg2 Nf3 Rf1 Qdd3 Qf2 Nfd4 Kg1 Re7 Qf5 Re5 Qe6 a3 Bh5 Re1 Bf3 Ra1 Be2 Qdf5 Re3 Qfd3 Re5 Ra2 Rf5 Qh4 Rh5 Qg5 Rh4 Qf3 Qe5 Qcd3 Qe6 Qg2+
1nr3n1/3rb2N/1P6/PQpk1qN1/2R2Q1P/2q1P3/1qpB4/nRnqKN2 w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 a5 gxh5 axb4 Ba3 b3 Bb2 Ra6 Bc1 Ra8 Ba3 b5 Bc1 d5 Bg2 b4 Bh3 Bd7 Be6 Bb5 cxb5 Ne7 Bf5 Ng8 Bd3 Ne7 Bc4 dxc4 Bb2 Ng8 Ba3 Qd3 Bc1 Qd8 d4 Ke7 a4 Ke6 h4 f5 h6 c5 b6 g5 e3 c3 a5 c2 h7 b2 Qg4 f3 Nc3 b1N Kf2 b3 Nge2 b2 Qg3 f4 Nb5 g4 Nd6 Nd2 Rf1 b1Q Rd1 Ra7 Ra3 Rd7 Rc3 Kd5 Ne4 Qb2 Ng5 Nb3 Rc4 Qf6 Ke1 Na1 Bd2 Be7 Rb1 Qf5 Qf2 g3 Qh2 g2 Ng3 g1N Nf1 Ne2 Qg3 Kd6 d5 Nc1 Qf2 Ke5 d6 Kd5 Qe2 Qfe5 Qd3+ Qed4 Qb3 Qdc3 Qb5 Rc7 d7 Ra7 d8N Rd7 Nh2 f2+ Kf1 Nh6 Nde6 Rc8 h8Q Ng8 Qf6 Rd6 Nf8 Rd7 Kg2 f3+ Kg3 f1Q Nfh7 f2 Qf4 Qe2 Kg2 f1Q+ Kg3 Qfd1 Nf1 Qed3 Kf2 Qf3+ Ke1 Qf5 Qg3 Q3g4 Qf4 Qd1+
5N1Q/2b5/1n2QPRR/4rP2/N2n1pbb/P2n3B/P1p1n2k/rNbK3b w - - 0 1 illegal: No possible last move, all moves rejected
2B1b1qN/3Q1n1b/1RpPqR1p/2b2P1n/knB5/2P3bQ/P4qq1/1K4B1 w - - 0 1 legal: proof: e4 b5 g4 f5 h4 fxe4 f4 d5 b4 a5 f5 axb4 Bc4 h6 Bf1 g6 Nc3 e3 Ne4 dxe4 g5 Ra6 Bh3 Rb6 Bf1 Rf6 gxf6 g5 Ke2 g4 Ke1 Rh7 Ke2 Rg7 Ke1 Rg5 hxg5 Bd7 Ne2 Be6 Ng1 Bc8 d4 Kd7 f7 Kc6 g6 e5 g7 g3 c3 e2 Kd2 e1N Nf3 b3 Nh4 g2 Rh2 g1Q Bg2 b4 d5+ Kb5 Nf3 b2 Rh4 b1Q Bh1 b3 Ba3 e3+ Ke2 e4 Bc5 b2 Nh2 c6 Qc2 Na6 Be7 Nf6 g8B Nf3 Ng4 Bd7 Qd3+ Ka4 Bc5 Nb4 Ne5 Nh5 Ng6 Be8 Rg4 Ne5 Nh8 Qc8 Bd4 Bc5 f8Q Qe6 d6 Nf7 Qg7 Qbc1 Rg5 b1B Rg6 Bc2 Rf6 Qb2 Rb1 Qg6 Ke1 e2 Bg1 Bb3 Qh3 Bc4 Qh7 Qb3 Kd2 e1B+ Kc1 e3 Rb2 e2 Bd5 Qg2 Kb1 Bg3 Qg7 Qe3 Be6 Qef2 Bc8 Bd5 Ka1 e1Q+ Rb1 Qe6 Rb2 Na6 Kb1 Qc4 Rb6 Nb4 Qf8 Qg4 Qe7 Qg7 Qd7 Qf8 Bh7 Qg8 Bg6 Ng7 Bh5 Bb3 Bd1 Nh5 Be2 Qh7 Bb7 Ne5 Qf7 Qd7 Qg7 Bg8 Bc4 Qe6 Qc7 Nf7 Bc8 Qg6 Qd8 Bh7 Qd7 Qg8
r6Q/BP2R1q1/k3pnNP/1pBb1n2/2BPp3/2P4R/bbK2r2/1Q2qn2 w - - 0 1 legal: proof: b4 c5 g4 b5 a4 h5 gxh5 f5 e4 fxe4 a5 cxb4 c3 d5 Na3 d4 Nc2 Qb6 axb6 d3 Ra6 dxc2 Ra3 Rh7 Ra1 Rh8 f4 Kd8 h4 g5 d4 a5 Kd2 a4 b7 Kc7 h6 Kb6 h7 b3 h5 g4 f5 g3 h6 a3 f6 g2 f7 a2 Rh4 b2 Qh5 b1B Qe2 Nf6 Qg4 Be6 Ne2 g1Q Qf3 Ka6 Rh3 Nc6 Bb2 c1N Nf4 Ne2 Ba3 Qg7 Ng6 Bd5 Qd3 e6 Bc5 Ne7 Ba7 Ng3 Be2 Rg8 h8Q Nef5 Kc1 Bb4 f8B Nf1 Bfc5 Rgf8 Qd1 Rf7 Bc4 Rff8 Kb2 Ba3+ Kb3 Bb2 Qe1 Bd3 Rc1 Be2 Kc2 a1Q Rd1 Rf7 Rdd3 Rff8 Rdf3 Rf7 Qd2 Qe1 Qc1 Rff8 Qb1 Bc6 Bd5 Bc4 Rf4 Ba2 Bc4 Nh4 Rf5 Rf7 Rd5 Nf5 Rd7 Bd5 Re7 Ng8 Qd1 Nd6 Be2 Rf2 Qc1 Nf5 Qb1 Rf3 Bd3 Nf6 Bc4 Rf2+
1b1Nn2N/1K5n/2BR3Q/1P1p1kP1/2Q2p1r/2r1Pbnr/qp3P1Q/2B2n2 w - - 0 1 legal: proof: h4 e5 a4 b5 b4 c5 d4 g5 dxe5 gxh4 Nf3 c4 Ng1 a5 Ra3 axb4 Rb3 cxb3 axb5 Ra6 Bh6 Ra4 Bc1 Ra8 Kd2 Ke7 Ke3 Ke6 Kd4 h5 g4 d5 c4 f5 c5 h3 c6 h4 c7 h2 g5 h3 e3 b2 Na3 b1N Qh5 b3 Nc4 b2 Ne2 f4 Nd6 Na6 Qh6+ Nf6 Nf7 Kf5 e6 Nh7 e7 Nd2 e8Q Bd6 Qg8 Bd7 c8Q Qa5 Qc4 Bb8 Qe8 Nc7 Kc5 Qa4 Kb6 Qa2 Kb7 Ra3 Qc8 Rc3 Nd4+ Ke4 Qcf8 Ne8 Nc6+ Kf5 Ncd8 Be6 Be2 Nf1 Qh4 Bd7 Qfh6 Be6 Bh5 Bd7 Rg1 h1N Qg3 Be6 Qh2 Bd7 Rg4 Nhg3 Rh4 Be6 Qh1 h2 Rh3 Rf8 Nh8 Rf6 Qg2 h1R Rh4 Rh3 Qh2 Ke5 Bf7 Bg4 Be6 Be2 Bd7 Bf3 Bc6 Rg6 Qg7+ Kf5 Rh6 Rf6 Rg6 Rf8 Re6 Rf6 Rd6 Rfh6 Qf8+ Kg4 Qf6 R6h4 Qh6 Kf5
2n3n1/4rq1P/1R2QPN1/nQ1K2P1/1Pr5/bpk1rQ2/1Np2p1B/r1B2b2 w - - 0 1 illegal: No proof kernel
1Q5b/6n1/2Rn1kpp/N3r1qP/B3r1p1/1Pqn1PBB/PRb5/3Q2nK w - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 f5 b3 fxg4 Be3 a4 Na3 b5 Rc1 b4 Nb5 a3 c4 bxc3 Nxa3 c2 Nb1 cxb1Q Rc4 Na6 Ra4 Nb8 Ra3 Qa1 h4 Ke7 h5 c5 e6 d5 f3 d4 Kf2 g6 Kg2 h6 Bf2 d3 e4 c4 e5 c3 Bd4 c2 Bb6 c1N Rh3 d2 Be3 Nd3 Ra5 Bg7 Rb5 Ra4 Ba7 Nd7 Rb6 Nf8 Bb8 Qc3 Rc6 Nf6 Rh2 Ne8 Ne2 Re4 Kh1 Nd6 Nd4 Rh7 Bc7 Bh8 Bh3 Rf7 Bb8 Rf5 Rf2 Nc1 Bc7 Ne2 Rg2 Ng1 Bb8 Ke8 e7 Kf7 e6+ Kf6 e8Q Rfe5 e7 Ne6 Qg8 Ng7 e8B Qda5 Bc7 Be6 Bd7 Bc4 Qb8 Bd3 Re2 Bc2 Be8 Re6 Rg2 Qg5 Bd7 Ndf5 Bg3 Nd6 Rc5 Qf5 Ba4 Qg5 Qa1 d1N Nc6 Bb1 Rb2 R6e5 Na5 Bc2 Rc6 Nf2+ Kh2 Re1 Qd1 Nd3 Kh1 R1e4
4b1k1/P1Br4/4KP1q/3r3r/5QpN/p1r1Pqp1/P2b1R1B/B1R2nQn w - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 h5 b4 hxg4 Nf3 e6 Ng1 a4 Qc2 Qd7 Qb3 Qb5 Qd1 Qa5 bxa5 Kd7 Ba3 Kd8 Bc1 Ke8 d4 Ra6 d6 Ra7 d5 Ra8 Kd2 f5 e3 f4 d7+ Kf7 d6 f3 Be2 fxe2 Nc3 Be7 Nd5 exd5 Qf1 Bf8 Qe1 Ne7 Qd1 Ng8 Kc3 e1R Kd4 c5+ Ke5 g5 d8B b5 h4 d4 f4 d3 f5 b4 f6 c4 d7 a3 a6 d2 h5 g3 a7 c3 h6 b3 h7 c2 Rh6 b2 Nf3 b1Q Nd4 Na6 Kd5 Bb4 Ne2 Nc5 Rh1 Nh6 Rh4 Ng4 Ba5 Nb3 d8B Nf2 Rh2 g4 Ng1 Bd7 Ke5 Be8 Nf3 Nh1 Bdc7 Rd8 Bb2 c1R Rf2 Rd7 Nh4 Rc3 Qc1 Re2 Qg1 Qg6 Rc1 d1Q Ba1 Qh6 Kf5 Red2 Ke5 Rg8 h8Q Qf3 Qh7+ Kf8 Qf5 Rg5 Ke6 Rh5 Qe5 R2d5 Qf4 Be7 Bb4 Nd2 Bba5 Nf1 Bb4 Rc2 Be1 Bb4 Rd2 Rc3 Qh2 Rd8 Bf2 Rc2 Bg1 Kg8 Rf2 R8d7 Qg2 Ba5 Bh2 Bd2 Qg1 Rc3
2R1QN2/n1qpB3/Nr1P3k/1q6/3pP3/1QpqP3/2q1N1P1/r1bnqK1B w - - 0 1 illegal: Other
2R2qn1/bpKpbP2/Br1pR1b1/3B2P1/1PPQ1Q2/1bqN1b2/2R5/3r1k2 w - - 0 1 illegal: No proof kernel forced: wxLB
R2n2N1/rpPr1q2/q2Bq1PP/4N1k1/P1n1Q2p/3BNb1Q/Kq2p3/1q6 w - - 0 1 illegal: No possible last move
NQ1NnNRK/2RQ4/2P2PB1/2r4q/4rk1p/1p2rq1P/2pP2b1/1r2b1q1 w - - 0 1 legal: proof: c4 b5 b4 f5 a4 d6 g4 fxg4 axb5 c5 Bb2 cxb4 Ba3 Kf7 Bc1 Ke8 e4 Nc6 c5 Ne5 c6 Nc4 Bb2 Nb6 Bd4 Nd5 Bc5 dxc5 exd5 Qa5 Qf3 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 h5 f3 a5 d6 h4 b6 g3 b7 g2 b8Q c4 d7 a4 Bd3 a3 Ne2 g1Q Ra2 c3 Bb5 b3 Bd3 c2 Bh7 Qe3+ Be4 Rh5 Nf4 Qa5+ Qb5 Nf6 d8N Bh3 Qe2 Bg2 h3 Ne8 Rb2 a2 Na3 a1R Ng6 Rb1 Ra2 e6 Qd1 Bc5 Qdf1 Qe2 Nc4 Bf2 Nb6 Be1 Nf8 g6 Kd4+ Kf4 Rg1 g5 Bg6 e5+ Kd5 e4 Ke6 e3 Kf7 g4 Kg8 Qf2 Qfd3 g3 Qd7 Rc5 Kh8 e2 Ra3 Rb8 Na8 Qe3 Qbb7 Qd3 Qbc8 Rb4 Ra4 Qab5 Ra7 Re4 Rc7 Qd5 Qb8 Qh5+ Bh7 Qd3 Qd6+ Kg5 Qe6 Bf1 Qc4 g2 Qc3 Bg3 Qd4 e1R Qd6 R1e2 Qd7 Be1 f4+ Kf6 f5 Kg5 f6 Qdf3 Rh1 Kf4 Rh2 g1Q Rg2 R2e3 Rg8 Qhg4 Bf5 Bg2 Bg6 Qh5+
N1Q2bBR/2n2bkn/Bp2p3/P2q1Rb1/1p1P3P/1K3n1q/4P2r/3nQQ2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e6 b4 axb4 f5 Ra6 f6 Rd6 Nf3 Rd7 Ng1 Re7 fxe7 Kd7 g4 g5 Bb2 Qe8 Be5 Qd8 Bf4 h6 Nc3 gxf4 Ne4 h5 g5 Na6 Nf2 Nb8 Ng4 hxg4 e8B+ Ke7 a4 f5 d4 c5 Kd2 c4 Kc2 f3 a5 c3 h3 g3 g6 Kf6 d6 b6 d7 f2 g7 g2 Qc1 f4 Qb1 f3 Kb3 c2 Qe1 c1B Bf7 Bg5 Rc1 Rh4 Rc5 Na6 Rd5 Nc7 Rf5+ Ke7 Rh2 Nf6 g8Q Nh7 Qg6 Bb7 Bg8 Be4 Qh5 Bc6 Qg4 Qa8 Qf4 Be4 Rc5 Bg6 Rf5 Bf7 Qfc1 Bfh6 Qa1 Kf8 d8Q+ Kg7 Qc8 Re4 h4 Rg4 Nh3 g1N Nf4 Rg2 Nd5 Qc6 Rh3 Rh2 Bg2 f1N Rg3 f2 Be4 Qb5 Bd3 Ne3 Qad1 Qc5 Ba6 Nf3 Qf1 Qd6 Qde1 Nd1 Rg4 Kh8 Rg1 Bf8 Rg2 Kg7 Rg1 Nb5 Nc7 Qc5 Na8 Nc7 Qh3 f1Q Rg3 Qh1 Qhf1 Qg2 Rg4 Qh3 Rgf4 Bge7 Rh5 Bg5 Rf5 Nf6 Rh8 Nh7 Bb5 Qd6 Ba6 Qd5+
N1R5/nq1Q3p/r1r1B1qq/q2P1b1p/1N2B3/p3Pn2/P5PK/1r1k2NQ w - - 0 1 legal: proof: c4 d5 f4 e5 b4 exf4 b5 c6 bxc6 Na6 c5 Be7 Na3 Nb8 Rb1 Bf8 h4 Qa5 Rb4 Qd8 Rc4 dxc4 Bb2 Bd6 Bf6 Bf8 Bg5 Be7 Bh6 Bg5 hxg5 gxh6 Kf2 Ke7 d4 Ke6 c7 Kf5 c6 Ke4 d5 f5 g6 a5 g7 b5 Rh2 c3 Qe1 a4 Rh1 f3 Kg3 Ke3 Rh4 c2 Rh1 c1Q Kh2 f4 Qa5 h5 Nb1 a3 Qa6 b4 Qb7 b3 Qb4 b2 Nh3 f2 Qa4 f3 Qa5 Nf6 g8N Bf5 c8Q Ra6 c7 Ne4 Nc3 Kd2 Ng1 b1Q Ne7 Ng5 Nb5+ Kd1 Qd7 Nc6 c8B Na7 Nc7 Qb7 Na8 Qd2 Qb4 Qa5 Nc6 Rg8 Qb2 Rg6 Nb4 Rgc6 e3 Qc2 Bb5 f1R Bd3 f2 Be4 Re1 Qbg7 f1Q Qa1+ Qb1 Qd8 Qc4 Be6 Qcc5 Qd7 Qf8 Kg3 Qg7 Rh4 Qh6 Kh2 Kd2 Rf4 Rec1 Rf3 Kd1 Rf2 Qd3 Rc2 Rb1 Rc5 Rd6 Rc7 Rdc6 Rc8 Nf3+ Kg3 Ke1 Ne2 Bg4 Bg6 Rd1 Qc1 Qf5 Qa1 Qf7 Be4 Bf5 Qb1 Kd2 Qa1 Rh1 Qg1 Qff6 Qh2 Rg1 Qh1 Rb1 Ng1 Kc1 Rd8 Kd1 Rc8 Nd2 Kh2 Qfg7 Qd8 Qgg6 Qd7 Nf3+
2K1q1n1/2QP1B1p/5k1P/2rbpr2/1qPR1Bq1/pQq1N1Q1/1b1P4/5Nr1 w - - 0 1 legal: proof: b4 c5 a4 b5 c4 d5 g4 f5 Ra3 fxg4 e4 Na6 exd5 Nc7 Rd3 cxb4 Rc3 bxc3 Qe2 b4 Qd1 Nb5 axb5 Qd7 Qb3 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 g5 Ke4 a5 Ke5 a4 h4 e6 f4 c2 f5 b3 h5 b2 h6 a3 b6 g3 f6 g2 b7 g4 b8Q g3 d6 Ra6 d7 Bb7 Nf3 g1Q Bh3 g2 Nh2 Bf3 Nf1 Ba8 Nc3 b1Q Nd5 Qb4 Nde3 Qe8 Bb2 c1Q Qb3 Kg6 f7 Rc6 Bf5+ Kg5 Bg6 Nf6 Rh4 Bg7 f8Q Rc5+ Kd6 Bd5 Be5 Qc2 Qe7 Rf8 Qed8 Qb2 Qdc8 Ng8 Bg3 Rf5 Bf7 Bc3 Rd4 Kf6 Qc6 Qc1 Kc7 Bb2 Bh2 Qcc3 Bg3 Qf2 Bd6 g1R Bg3 Qe7 Kc8 Qf3 Qd6 Qf4 Qcc7 Qg4 Qf4 e5 Qf3 Qb6 Bf4 Qbb4 Qg3 Qe8+
1R1Q3N/Rb1pr1qQ/P2P1K2/B1q1pP2/rP6/kN2qb2/bn1R2p1/3b4 w - - 0 1 legal: proof: b4 b5 c3 a5 Qb3 axb4 Qb2 b3 Qc2 b4 Qd1 b2 Qa4 g5 Qd1 b3 Nh3 Bg7 Ng1 Bd4 Qc2 Bc5 Qd1 Bb4 cxb4 Ra4 Qc2 Ra6 Qd1 Ra8 f4 gxf4 e4 f5 Ba6 f3 Na3 f4 Nb1 Nc6 Bf1 Nd4 g4 h5 g5 Ba6 Bh3 Bc8 Bg4 Nf5 exf5 hxg4 Kf2 c5 h4 e5 a4 Ke7 d4 Kd6 a5 g3+ Ke1 f2+ Ke2 f1Q+ Kd2 f3 Ke3 f2 Ke4 c4 g6 g2 h5 c3 d5 c2 h6 Qf8 h7 Bb7 g7 Qc4+ Qd4 f1B Bg5 c1Q Nh3 Be2 Rd1 Ne7 g8R Qc5 Rd2 Ng6 Nf4 Bd1 Bd8 Qg7 Bb6 Ra6 Rb8 Re8 h8Q Re7 Qh7 Bf3+ Ke3 Q1c3+ Kf2 Qe3+ Kg3 Ra7 Qe4 Bd1+ Qf3 Ra8 Kg4 Ra7 Nc3 b1B Kg5 b2 Ne2 Be4 Nd4 b1B Nb3 Ba2 Qg4 Bef3 Qgh4 Qg8 Kf6 Ra6 Ne6 Nf4 Nf8 Nd3 Ng6 Nb2 Nh8 Qg3 Ba7 Kc7+ d6+ Kc6 Bb6 Kb5 Qg5 Ka4 Qgg8 Qef4 Qd8 Ka3 Ba7 Ka4 Rc1 Qfe3 Bb6 Bb1 Bc7 Qb5 Rc5 Ba2 Rc6 Qbc5 Rb6 Bbe4 R6b7 Ka3 Ra7 Bb7 Qhg8 Rb6 Qh7 Rb5 a6 Ra5 Bb6 Ra4 Ba5 Qg7+
QnnrQ1q1/r2NBpP1/3p2pn/2RK4/2BP4/2PQ1n2/rr3nP1/1N2k3 w - - 0 2 legal: proof: b4 c5 a4 cxb4 f4 a5 Nf3 e5 Ra3 exf4 Rd3 b3 Ng1 Be7 Rd4 Bf8 Rb4 axb4 h4 b5 h5 b2 h6 g6 Rh3 b3 Rh5 b4 Rh1 Bg7 hxg7 Bb7 Nc3 Bc6 Nb1 Bb5 axb5 Ra3 Rh3 Ra7 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 Kg4 b6 Kg3 b7 Kf2 e3 h5 c3 f3 Bd2 d6 Be2 h4 Kd5 h3 e4 h2 e5 Ra7 e6 Nh6 e7 Qg8 Na3 b1N e8Q b2 Qda4 b3 Nc4 Na3 Qec6 b1R Qb6 b2 Qe8 Ra1 Ne5 b1R Bg5 Nb5 Qa6 Ra2 Nd7 Ke1 Be7 f2 Bc4 f1N Nf3+ Kf2 Bf8 Rbb2 Be7 Nd2 Re1 h1N Re5 Ra8 Rg5 Na7 Rf5 Nc8 Re5 Nb1 Nd2 Ra7 Rh5 Ke1 Rf5 Nc6 b8Q Nf2 Qa8 Nb8 Qb5 Na3 Nb1 Nc2 Qa6 Na1 Qa4 Nb3 Rg5 Nd2 Qc2 Nf3 Qd3 Rbb7 Rh5 Rbb2 Qf8 Nh3 Ke4 Qh7 Rc5 Nf2+ Kd5 Rg8 Qd8 Rf8 Ne5 Qg8 Qd7 Rd8 Qe8 Ng1 Nd7 Nf3
5B1R/Q2q1qp1/2r5/p1PqnQ2/R1qn1NP1/Pr3Pp1/1k2BKR1/2n3n1 w - - 1 2 illegal: No possible last move, all moves rejected
2b4b/QB2k1B1/2p3P1/P1pQrRr1/8/p1qPnn1P/1N1Rp3/1KR3qq w - - 0 1 illegal: No proof kernel
2q2Rb1/2RRnQQ1/p2PrbN1/5p2/P1KP2qp/2P1npkq/1B1b4/N7 w - - 0 1 legal: proof: f4 e5 h4 b5 e4 g5 Bc4 gxh4 d3 c5 c3 a6 Bd5 exf4 e5 Ra7 Bf3 d5 Be4 dxe4 Qd2 Rd7 Qd1 Rd4 cxd4 c4 Bd2 c3 bxc3 Bb7 Bc1 Bc8 Kd2 Ke7 g4 Ke6 a4 f5 g5 h5 g6 b4 g7 b3 Ra2 h3 Bb2 h2 Qg4 h4 Qf3 e3+ Ke2 Nf6 g8R Bg7 Qg4 Nd5 Na3 Bf6 Nf3 Nc6 Qg7 Rh6 Rf8 Nce7 Rb1 h1Q Nc2 Qh3 Na1 Bd7 Rg1 Qc8 Rg5 Be8 Rg1 Bf7 Re1 Kd7 e6+ Kd6 Ne5 Bg8 Ng6 f3+ Kd1 e2+ Kd2 Nc6 e7 Ne3 e8Q Ne7 d5 Qg4 Qef7 Qh3 Nf4 Ke5 d6 Qg4 d4+ Ke4 Ng6 Qh3 Ne5 Kf4 Ng6+ Kg3 Kd3 Qg4 Rb1 e1B Ra3 Bd2 Re1 Nd1 Re5 Ne3 Rc5 Qh3 Rc7 Qg4 Bc1 b2 Rb3 Qh3 Rbb7 Qg4 Rd7 Qh3 Rbc7 b1Q+ Nc2 Qg4 Bb2 Qh1 Na1 Qh2 Qe6 Qhh3 Qef7 Bg5 Nh8 Re6 Ng6 Nc2 Kc4 Ne3+ Kb3 Bf6 Kb4 N3d5+ Kc4 Ne3+
Qr1kq3/1np2P2/3P4/1BBPnp1q/N1N3QP/N1R2pK1/1r4rp/2b1n3 w - - 0 1 illegal: No proof kernel
3b1Q2/1r2p3/Pb6/1K1Pkb2/Pp3p2/P2pq2R/1nBR1B1B/nQ2b1Nb w - - 0 1 illegal: Other
4n2k/PnB1r1rq/Q3Nn1P/pN6/6p1/1PnP1pK1/B1B1Q1Rp/2n3b1 w - - 0 1 illegal: No proof kernel
r2k1BB1/6R1/pp1P1p2/K5rr/2NPN1pb/2P1qB2/2QQP1r1/n2q3b w - - 0 1 illegal: No possible last move
4B3/k3n1KP/1NB1p1P1/2qqPnN1/1ppQ4/5NrQ/p1q1qP1b/Rr6 w - - 0 1 illegal: No proof kernel
5k1q/2P2Brp/QqR1RNP1/2P3Qq/pKb3bn/p3p3/2R1P1qB/3n4 w - - 0 1 legal: proof: g4 f5 h4 fxg4 a4 b5 Rh3 bxa4 Rh1 g3 Rh2 g5 Nh3 a5 Rh1 g4 Ng1 Ra6 Na3 Rg6 Nb1 Rg5 hxg5 Ba6 Ra3 Bb7 Ra1 Bc8 d4 c6 b4 Na6 Nc3 Nb8 b5 c5 Nd5 Ba6 Nb4 cxb4 Be3 Bb7 Bc1 Bc8 c4 Bg7 c5 Be5 c6 Bc7 Qd3 Bb6 Qd1 Bc5 dxc5 Qb6 Bd2 Qc7 Bc1 Qd8 Kd2 d5 f4 e5 c7 a3 g6 g2 f5 d4 f6 b3 b6 e4 f7+ Kf8 b7 e3+ Kd3 b2 Kc4 b1Q Nf3 g1Q Nd2 a4 Nf3 d3 Ne5 d2 Bg2 g3 Ra2 Ne7 Bd5 g2 Rh5 Bg4 Rc2 Qh2 Qg1 d1B Bb2 Nf5 Kb4 Nd7 b8R Nh4 Rb6 Nf6 Rc6 Ne4 Rf5 Rg8 Rff6 Nf2 Rfe6 Rg7 Bc4 Bf5 Ng4 Qe8 Nf6 Bg4 Ba2 Qe5 Bb3 Qh5 Be5 Qa8 Bh2 Qe8 Qh1 g1Q Qd5 Qg2 Qd3 Qb2 Qa6 Qb8+ Qb7 Qa7 Qa6 Qb6+ Kc4 Qa5 Ne4 Nd3 Rf6 Nf2 Rc1 Rg8 Rfd6 Kg7 f8Q+ Kh8 Qf4 Kg7 Qg5 Qb6 Ba2 Kf8 Bb3 Qg7 Nf6 Qh8 Kc3 Bc2 Bf7 Rg7 Re6 Bd3 Rc2 Bb5 Kb4 Nd1 Qa5 Bc4+ Qb5 Qa7 Qa6 Qb6+
2B1RB2/pKp1q1P1/p1P2Q2/1P1n1rN1/1P2r3/Q1q2Qp1/2R3rr/1k2n2b w - - 0 1 legal: proof: f4 g5 g4 gxf4 d4 e5 dxe5 h5 g5 Qe7 Qd5 Qf6 Qf3 Qd8 b4 Bc5 Nc3 Nc6 Na4 Nge7 Qg4 Bd4 Nc5 hxg4 Na6 bxa6 a3 Bc5 b5 Bb4+ axb4 Nb8 Kd2 Ng8 Kd1 Qe7 Ke1 Qd8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kc5 Ke4 h4 d5 c4 f5 h5 f3 g6 f4 e6 g3 e7 d4 e8Q+ Ne7 h6 f2 h7 d3 Rh2 d2 Nf3 d1Q Bh3 f1R Qf8 Q1d2 Ng5+ Ke3 Bg4 Bb7 Bc8 f3 Rb1 Rg8 h8Q f2 Qhf6 Nbc6 Rb2 Rg1 Rc2 f1R Rh8 Nd5 Q8f7 Rg7 Re8+ Ne5 Bb2 Rh7 g7 Rf5 Bd4+ Kf4 e4 Nf3 e5 Rh6 e6 Rg2 e7 Qc3 Be5+ Ke3 Bd6 Kd3 Qh5 Rf4 Qh1 Rh8 Qc1 Re4 Qa3 Ne1 Qf3+ Ne3 Qf6 Rhh2 Qf3 Bd5 Qf6 Bg8 Kc6 Nd5 c5 Be6 Kb7 Bg4 c6 Bf3 Rh8 Qd7 e8Q Qe7 Rc1 Kd2 Qef7 Kd3 Re8 Kd2 Rb1 Kc2 Rb2+ Kc1 Rc2+ Kb1 Be6 Rd8 Bc8 Rd7 Bc5 Rd6 Qh5 Rde6 Bd6 R6e5 Bc5 Rf5 Qg4 Qf7 Bf8 Qe7 Qh5 Rd2 Qg4 Bh1 Qf3 Rdg2
6k1/B1Qb4/Prp1P1q1/1r6/p1B1PpNq/R1r1bPqN/1b1pQ2K/4Q3 w - - 0 1 illegal: No possible last move
b2B4/K1pQ2n1/1b1q1P2/1NRp1p1q/N1pb2b1/1P4qn/R1PNPk2/2Q5 w - - 0 1 illegal: No proof kernel
B4Q2/3p4/pP1prq2/N2BP1bk/n1p1Nn1N/PP3Kp1/R1b1Q3/3n1r2 w - - 0 1 legal: proof: c4 g5 f4 f5 fxg5 b5 cxb5 Nc6 d4 Kf7 e4 Qe8 e5 Qd8 d5 Nb8 d6 exd6 b3 Nc6 Nd2 Ke8 Rb1 Nb8 g4 h6 g6 Qe7 g7 Na6 g5 Qd8 g6 Nb8 Rb2 Be7 Rc2 Bf8 Rc4 Bb7 Re4 fxe4 Ndf3 Ba6 Bg5 hxg5 Nd2 Bc8 Kf2 c5 h4 c4 h5 e3+ Kg2 e2 a3 e1N+ Kf2 g4 h6 g3+ Ke3 Ne7 g8N Nd3 h7 Nf2 g7 Kf7 b6 Kg6 Nf6 Na6 g8B Bh6+ Kf3 Bb7+ Bd5 Nc5 Rh2 a6 Qe2 Bg5 Nfe4 Na4 Nc5 Nd1 Nde4 Re8 h8Q Rc8 Rf2 Rf8+ Qf6+ Kh5 Bg2 Ng6 Bh1 Bc6 Nb7 Nf4 Na5 Re8 Qf8 Qf6 Qf1 Ba8 Ra2 Re6 Qe2 Rce8 Bg2 R8e7 Bh1 Rf7 Nd2 Rh7 Bb7 Nd5+ Ke4+ Kg6 Ngf3 Nf4 Bg2 Rh1 Nh4+ Kh7 Bc6 Rf1 Bh1 Ndc3+ Ke3 Bb7 Bcg2 Be4 Bf3 Bc2 Ba8 Bh6 Bhd5 Bg5 Qg8+ Kh6 Ne4 Rc1 Kf3 Kh5 Qc8 Rg1 Qd8 Nd1 Qf8 Rf1+
N1rnB1k1/pQQ1p1P1/p3b3/NKQ2R1p/r4r1n/1p3P1n/2nBP2P/8 w - - 0 2 illegal: No possible last move
2rB2nR/2PNn3/P5p1/rk1B2P1/1nqQ2qP/1Q2n3/2nNQKbb/r1b5 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 exf5 axb4 d4 cxd4 g4 h5 g5 Qa5 Ra3 Qb6 Rg3 Qd8 Rg4 hxg4 f4 d5 c4 Kd7 h4 Kc6 f6 b5 f7 e5 f5 g6 f6 g3 a5 d3 c5 d4 Qf3+ e4 Ba3 b3 Bc1 d2+ Ke2 d1N Qg2 d3+ Ke1 d2+ Ke2 b4 Nc3 b2 Nd5 b1R Qh2 g2 Nh3 g1B Qf4 b3 Ba3 b2 Bg2 e3 Qd4 Bh2 Nf2 Bb7 Re1 Qc7 Nb6+ Kb5 c6 Na6 Nd7 Ra1 Bd5 b1N Be7 Nb4 Ne4 Nbc3+ Kf3 e2 Bd8 Bg7 f8Q Ne3 f7 d1Q Qe8 Qa4 Rb1 e1N+ Kf2 N1c2 f8Q Bge5 Nd2 Bef4 Qff7 Qc8 Bh1 Ncd5 c7 Nde7 Qb3 Bg2 Re1 Nc4 Re6 N4e3 Rf6 Qa6 Rf7 Qe6 Rh7 Qg4 Rh5 Bh3 Bd5 Bg2 Rh7 Qa2 Qa3 Qc4 Qb3 Nf6 Rh6 Rf8 Rh7 Nfg8 Rh8 Rc8 a6 Rf5 Bf7 Kc6 Be6 Rfa5 Bd5+ Kb5 Qf8 Bd6 Qf3 Bde5 Qe2 Bg7 Qdd3 Bb2 Qd4 Bc1
2n1r3/1R3N1Q/KP4RP/1qpbQ2N/2P3qq/rrnNqP2/qnk4b/7B w - - 0 1 illegal: No possible last move
Q4brb/Rqk2P2/B2p1bb1/6Qr/P1rPq3/P1n1R3/1N1qbK2/3NR1n1 w - - 0 1 legal: proof: h4 c5 e4 a5 b3 g5 e5 gxh4 e6 a4 bxa4 fxe6 Ba3 e5 Bb4 cxb4 Bd3 e4 Bb5 Ra6 Bf1 Ra8 g4 e5 f4 h5 c4 b5 f5 h3 d3 e3 f6 h2 c5 e4 a3 e2 g5 b3 g6 b4 g7 b2 c6 h4 c7 h3 Qb3 Ne7 g8Q Ba6 c8R Nd5 Rc3 Rh5 Qc2 b3 Qg3 Nc6 Qc1 Ne5 Qcg5 Nf3+ Kf2 e1B+ Ke2 e3 Rc7 Bc3 Nd2 b1Q Ra2 b2 Qf2 d6 Rc5 Kd7 f7 Bf6 Qg7 Qa5 Rb5 Kc7 Rb6 Qc2 Qh7 b1B Qh6 Qb5 Rb8 Qb7 Qg5 Rh4 Qfg2 Rc4 Rb2 Bh8 d4 Qc3 Ra2 Bg6 Re8 Qcb4 Rb2 Qa5 Re4 Nc3+ Kd3 e2 Ke3 e1B Ne2 Rd8 Rb6 Bb5 Ra6 Bh4 Ra7 Ra8 Rg1 h1Q Re8 h2 Re5 Rb4 Nc4 Rc8 Nb2 Rc4 Nd1 Rd8 Nf4 Qb4 Be2 Rc8 Rf1 Ng1 Nd3 Qb2 Rf3 Qa2 Rg3 Qd2+ Kf2 Re8 Qd5 Qe4 N3b2 h1R Re6 Bfg7 Re5 Rg8 Re6 Qed3 Re3 Bf8 Qe4 Ba6 Qe8 Qe4 Qa8 Qc1 Bd3 Bb5 Re1 Qd2+ Be2 Ba6 Qh5 B4f6 Qg5 Rh5 Re3 Bb5 Rf1 Bd7 Re1 Bg4 Kf1 Rc6 Ba6 Be2+ Kf2 Rc4
r4NR1/nn1Q4/2p1KP1b/n5Q1/brP4B/1bq1PqPB/3bN2b/1Br4k w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 bxa4 h3 g5 h4 gxh4 b4 f5 Ra3 f4 Rd3 Na6 e3 f3 Rd2 Nb8 Re2 fxe2 Kd2 Bc5 Kc3 Bd6 Kd2 Bf8 Kc3 Ke7 Kd4 Ke6 c4 Kf5 Kd5 Kg4 f4 Kg3 f5 e1B b5 h5 b6 a5 e6 h3 e7 h2 e8B a3 b7 a4 f6 a2 Nh3 a1N Be2 a3 Rf1 h1Q Qb3 Kh2 Bg6 h4 Bf7 a2 Qb2 Ne7+ Ke5 d5 Bf3 d4 Nf2 d3 Qb5 d2 Be8 d1B Nd3 h3 Qa6 Bd2 Rg1 Bb3 Bd7 Nf5 Be8 Nd6 Bfh5 Bd7 Bhg6 Bda4 Qb5 Nc6+ Ke6 Na7 b8Q c6 Nc3 Qa5 Qd8 Nb7 Nf4 Bh6 Nce2 Qc3 Qg5 Rg8 Qd7 Rf8 Bef7 Rfb8 Rd1 Qf1 Bb1 Kh1 Ng6 h2 Re1 Nb5 Ba3 Na7 Rc1 Qd1 Nf8 Qf1 Rc2 Qf3 Rc1+ Bd1 Bg8 Nb3 Bd6 a1B Bg3 N3a5 Bh4 Bb2 Rc2 Ba1 Ra2 Bdb3 Bgh7 Bb2 Bhf5 Ba3 Bh3 Bd6 Nc1 Kg1 Rc2 h1R Ne2+ Kh2 Ra2 Rc1 Ra3 Kh1 Ra2 Bh2 g3 Be1 Rd2 Qb2 Rd4 Qc3 Rg4 Bd2 Qe5 Nd6 Rg8 Rb4 Qg5 Ndb7
2q1Nb2/2p2Q1b/1kPqnPn1/1n2Q3/1r3B2/1r1Bq3/r2bRP1P/3KN1Qb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 a4 f5 exf5 hxg4 Ra3 d6 Re3 d5 Re4 dxe4 d4 Kd7 c4 Kc6 a5 b5 a6 g5 a7 e5 f6 g3 d5+ Kb6 d6 g4 d7 e3 Nf3 b3 Nc3 e4 Ke2 b2 Qe1 b1R Bh3 g2 Rg1 g3 Nd2 b4 Kd1 e2+ Kc2 e3 Bb2 b3+ Kd3 Na6 Nf1 Ne7 Rh1 g1N Qc1 e1B Ne4 g2 Qc3 e2 Bc1 b2 Kc2 Nf3 Ne3 g1Q Qe5 Nc5 Bf5 Rh3 Nd6 Qg3 Ne8 Ne6 Bd3 Bd2 Re1 Bb7 Ng2 Qc8 d8Q Ng6 Qe7 Qf4 Qf7 Qe3 Rf1 e1Q Rh1 Qg1 Ne1 Nfd4+ Kd1 Qgg3 Rg1 Bh1 c5+ Kc6 Rf1 Nb5 Rg1 Kb7 c6+ Kb6 Rf1 Qgf4 Rg1 Qfd4 Rg4 Qd6 Re4 Qec5 Re2 Qe3 Qg7 Rh4 Qe7 Rb4 Qf7 Rb8 a8Q Ra1 Qa2 b1B Qad5 Ra3 Qg2 Rba8 Qg1 Rab3 Qh7 Ra2 Qf7 Ne7 Bc4 Bh7 Bd3 Bc3 Bd2 Ng6 Bc1 Qh3 Bh6 Bd2 Bf4 Qe3
nq6/2PrQ3/p2qbbqP/P2Q1B1r/nb4P1/n1q1Q3/1R1B4/k1N1NKr1 w - - 0 1 legal: proof: b4 d5 e4 dxe4 g4 h5 f4 g5 a4 gxf4 Ra3 c5 bxc5 h4 Rg3 hxg3 d4 Kd7 c4 Kc6 h4 b5 h5 f5 a5 e5 Qa4 e3 Bb2 f3 Qb4 a6 Bh3 e2 Nd2 f4 Bc1 g2 Nb3 f2+ Kd2 e1Q+ Kd3 f1Q+ Ne2 g1R Ba3 e4+ Kc2 f3 Bc1 f2 Qa3 e3 Kd3 b4 Nd2 b3 Qa2 b2 Qb1 Ra7 Nb3 Qd6 Qa2 b1N Nd2 Ne7 Rh2 Be6 Bg2+ Nd5 Be4 Bg7 Bf5 Nd7 Nf3 N7b6 Bd2 Bf6 Rg2 Qc1 Ne1 Rd7 Qb3 Ndc3 d5+ Kc7 c6 Nca4 c5 Na3 Rh2 Na8 Qc3 Qh3 Qe5 Qd1 Nc1 e2+ Qe3 f1Q Rg2 Qff4 h6 Rg8 Rh2 Rg5 Rg2 Rh5 Rh2 Kc8 c7 Kb7 Rf2 Qb6 d6 Kc6 c8Q+ Kd5 c6 Qg5 c7 Qb8 Rg2 Qg6 Qd8 Qf3 Qe7 Qh3 Nf3 e1B Rh2 Qg3 Rf2 Qdb3+ Ke2 Kc4 Rg2 Qc3 Rf2 Rd8 d7 Qd6 Rg2 Rh8 d8Q Rh7 Qee8 Rd7 Qee7 Kb4 Qg8 Nb1 Qgd8 Ka3 Qg8 Kb2 Qgf7 Bg3 Ne1 Na3 Rf2 Ka1 Rh2 Ba2 Qd5 Bge5 Rg2 Bd4 Rf2 Bc5 Rh2 Bb4 Rf2 Rg3 Kf1 Rg2 Re2 Rg1+ Kf2 Nb2 Qh1 Qcc5 Bc3 Rg2+ Kf1 Be6 Rf2 Rg3 Qd5 Qd4 Rc2 Q4e5 Bd2 Na4 Rb2 Qc3 Qd8 Rg2 Qe7 Rg1+
k2Nbqqb/br2p3/1R6/1nr1PQ2/3PPKNn/2B1Qb1q/QR3P2/3r3n w - - 0 1 illegal: Other
kr2N3/P1p5/2br1BKb/1n4P1/1R2q3/b1PrQ2Q/RP2Rqn1/1n2Nr1q w - - 0 1 illegal: No proof kernel
qR1r4/Q3nBK1/1r2Q3/1k1nNnp1/4P1P1/bPR1b1PN/3b2bb/nNn5 w - - 0 1 illegal: No proof kernel
2R2K2/qn2QrP1/1b2q1Nk/4nP2/qQ1P2p1/NN4br/2q3P1/3bBqRq w - - 0 1 illegal: No possible last move, all moves rejected
1rN1b2b/K5b1/2pPPRQ1/3Q1R2/1nP3n1/b3QqB1/1P1b1rnr/Nk5r w - - 0 1 legal: proof: g4 d5 f4 h5 a4 hxg4 f5 b5 axb5 d4 c3 d3 Bg2 e6 Bd5 exf5 Bb3 f4 Bc2 dxc2 Kf2 Kd7 d4 Kd6 h4 Kd5 e4+ Kc4 d5 Kb3 b6 f5 h5 g5 e5 a5 c4 a4 h6 f3 Ke3 f2 Kd4 f1N b7 f4 e6 f3 h7 a3 d6 g3 Kc5 g4 Qe1 f2 Bg5 c1B Qd2 c6 Bf6 g2 Bg5 g3 Bf4 a2 Rh4 Nh6 Rg4 Bd7 Qb4+ Kc2 Qa3 Qf6 Kb6 Bg7 Nh3 g1B Qf3 g2 Nd2 Be8 Qe3 Na6 b8Q Nb4 Bg3 Qf3 Rf4 Ng4 Nb3 Bd2 Rf5 Bh2 Qa7 g1B Nf4 Rd8 Qc5 Nfe3 Qd5 f1R Ng6 Rf2 Ne7 Ng2 Rf1 a1R Nc8 Rc1 Qf7 Kb1 Ka7 Rd1 Na1 Re1 Nb6 Rb8 Qg6 Rc1 Nc8 Rd1 Bh4 Bhe5 Bg3 Re2+ Nb6 Bc5 Rf2 Rf8 h8Q Rh1 Qhh6 Bh8 Qf4 Beg7 Qe3 Rf6 Qh5 Rh6 Qg6 R6h2 Rf6+ Qe4 R2f3 Rf2 R3f5 Qf3 Qa3 Na2 Qe3 Ba3 Nc8 Nb4
2nQ4/Rqb4R/B2P3K/1B6/rrN1PBp1/4n1Pr/Pq1nnQ2/2k2brn w - - 0 1 illegal: No possible last move, all moves rejected
1nr4n/4b1BQ/1n1Nb2P/1b1kn3/1RNq4/K1rB1p2/bNPq1P1P/3Q1b2 w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 Ra2 h5 gxh5 c5 Ra3 c4 Rd3 cxd3 Kd2 Ke7 e4 Ke6 e5 d5 a5 g5 h6 b5 a6 f5 a7 g4 Ne2 b3 Rg1 b4 Nbc3 f4 Bh3 b2 Rg2 b1N+ Ke1 b3 Na4 b2 Ng1 d2+ Ke2 d3+ Kf1 d4 Qe1 d1Q Rg3 d2 Re3 d3 Nc3 Qd4 Nce2 Nc3 Re4 b1B Nf3 Be7 Nfg1 Kd5 e6 g3 Bg2 Na4 Bb2 Ba2 Bf3 Nb6 Nc1 Bb3 Be2 Ba6 Nf3 Bb5 Ne5 Rh7 Na2 Qc1 Bc3 d1B Nc4 d2 Bd3 Bg4 Qd1 Bh3+ Ke2 g2 Ba1 Rg7 Bb2 Rg3 Ba1 Ba3 e7 Be6 e8N Be7 Ned6 g1N+ Kf1 Nf3 Ke2 Ne5 Nc3+ Kc5 Na4+ Kd5 Nab2 Rf3 Qf1 d1B+ Ke1 Re3+ Qe2 f3 Rh4 Qb1 Kd2 Qa2 Kc1 Qa5 Qe1 Be2 Qd1 Qd2+ Kb1 Bf1 Re4 B3a4 Ka2 Bb3+ Ka3 Ng4 Be2 Rc3 Bd3 Ne5 Rh4 Nbc6 Rg4 Rc8 Rh4 Nb8 a8Q+ Kc5 Qa7 Kd5 Rh5 Bd8 Qc7 Ne7 Rh4 N7g6 Qh7 Nh8 Na5 Q4e3 Rb4 Qd4 Nac4 Be7 Qe1 Qc5 Qg7 Neg6 Nd1 Qce3 Qh7 Qe4 Na5 R3c6 Bg7 Rc3 Nb2 Qd4 Qd1 Ne5 Nac4 Ba2+
2BqQ1nr/5Pq1/5rk1/bp4PR/n2Bq3/1P2qrr1/B3PQR1/Kq3bN1 w - - 0 1 illegal: No proof kernel
n4q2/bQnr1P2/4PK2/B5rp/1r4QP/2bb1R1n/N2P2nQ/RN2kb1q w - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e6 c4 dxc4 Bg2 Qe7 Be4 fxg4 f5 Qd6 f6 Qd8 Bf5 exf5 Kf2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Kd4 e4 Kd3 h4 h5 b4 c5 e5 a5 b6 f4 e6 f3 b5 c3 b7 c2 b6 f2 Kg6 f1B f7 a4 Nf3 c4 Ng5 a3 Ra2 g3 Qg4 g2 Ne4 g1N Rb2 a2 Na3 a1B Qd1 c3 Rb1 Nf6 Nb5 Nbd7 b8Q Ba6 b7 Ne8 Na7 Nc7 Nd6 Nh3 Kf5 g5 Ndc8 g4 Nb6 g3 Nbc8 g2 Rg1 Nb6 Rb2 Bc5 Ra2 Qf8 Rh1 g1R Ne7 Rg5+ Kf6 Bc4 Nac6 Ra4 Rh2 Rb4 Nd5 Nba8 Ba3 c1Q Rf2 c2+ Nc3 Ba7 Qg4 Qe1 Bb2 c1N Nb1 Ne2 Bc3 Nef4 Rf3+ Ke2 Ra4 Bb2 Ra1 Ng2 Qc8 Kd1 b8Q Bcd3 Qcb7 Qe4 Rf2+ Ke1 Rf3 Na6 Qh2 N6c7 Nd4 Rhg8 Ne2 Rd5 Nc1 Rgg5 Na2 Rd7 Be5 Bc3 Bd4 Qe3 Be5 Qg1 Bd4 Re5 Bb6 Qh1 Ba5 Rg5+
B1B1rq2/6r1/1KQ3PB/RNn3pn/1b3kP1/nrP2Nqb/4Q2P/r1n4b w - - 0 1 illegal: No proof kernel
4b3/K2B3n/BP3qb1/B1N1r2q/P1Qbp3/3RPq2/Pq3k1r/1b1Rnr1Q w - - 0 1 illegal: Other
R3q3/qn2Q1p1/brk2NP1/7r/4N3/r1nPK2Q/P2B2Pp/bnRbq2N w - - 0 1 illegal: No proof kernel
2R1K3/RQ1b3p/PnQ4b/1BN1qN1P/n7/2qQ2P1/P1qp1n1r/r1k1br2 w - - 0 1 legal: proof: e4 a5 d4 f5 f4 fxe4 b4 g5 bxa5 c5 f5 cxd4 Bf4 gxf4 Ke2 Kf7 c4 Kf6 h4 Ke5 g3 d5 h5 b5 c5 d3+ Kd2 Kd4 a6 e5 c6 f3 f6 b4 f7 e3+ Ke1 e2 Kd2 e1Q+ Kc1 Ke3 Kb2 f2 Kb3 e4 Ka4 d2 Kb5 b3 c7 b2 Kb6 d4 Ne2 d3 Qa4 d1N Rg1 Nc3 Rg2 Nd7+ Kc6 Qe7 Nd4 Rb8 Qa5 Bh6 f8Q Na4 Rh2 Qe5 Qb6 Ngf6 Nd2 b1Q Qa5 Ndb6 Qg7 Be6 c8Q Re8 Qcc7 Qc2+ Qc3 Ng4 Rc1 Re7 Be2 f1R N2b3 Nf2 Nc5 Rd8 Qb3 Kd2 Nf5 e3 Qc8 Ree8 Qgb7 Rd4 Qb1 Rh4 Rg2 Qec3 Kc7 Re7+ Kd8 Rh2 Qcc6 Rd7+ Ke8 Rd6 Bf3 e2 Bd5 Qe5 Bc4 Rd4 Bb5 Rb4 Qa1 Rb1 Qd4 Ra1 Rb1 Qec1 Rg1 Kd1 Qdd6 d2 Qd3 e1B Rb4 Nd7 Rg4 Ndb6 Rg7 Qa3 Rc7 Kc1 Rc8 Nd7 Ra8 Qac3 Ra7 Ndb6 Rh1 Rg2 Rh4 Rh2 Rd4 Qf6 Rd8 Qfe5 Rc8 Bd7+
1Rqqr3/P1qR1K2/B2P1b2/1N2p3/3nNn1k/1n2P1b1/P2rp1br/4QQ1R w - - 0 1 illegal: No extended proof kernel
4NnN1/r3QB2/r3bR2/6p1/p1QP1n2/2PqPRq1/1b1q2P1/Kb1rnNk1 w - - 0 1 illegal: No proof kernel
3RN3/1P3Pr1/r1k1p1N1/1n3bKQ/2PbR3/r1r1n1b1/nq1rPNp1/1Q5B w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Bg5 f5 Bh4 f4 Bg3 fxg3 Bh3 Qc7 Bf1 Qd8 Kd2 a5 b4 d5 c4 Kd7 f4 g5 h4 g2 b6 a4 f5 g3 b5 a3 b7 a2 b6 g4 h5 d3 Ke3 d2 Kf4 d4 f6 d3 h6 Ra6 h7 Nh6 f7 Nc6 b8Q Na7 b7 Kc6 Nf3 g1B Kg5 g2 Nc3 g3 Nb1 Qb6 Qa4+ Nb5 Rh3 d1N Qa7 d2 Qc2 Bf5 Ne1 e6 Nc3 Ng4 Ne4 Ndc3 Rh4 d1R Nd3 Ne3 Ndf2 Bd6 Nf6 Rd2 Rd1 a1R Qb1 R1a3 Re4 Na2 Ne8 Qd4 Qa8 Qb2 Qd8 Rc3 Qa5 Rf8 h8N Rg8+ Ng6 Rg7 Qd8 Be5 Qf6 Bh2 Qd8 g1R Qa5 Bd4 Bg2 Re1 Bh1 g2 Qb4 Raa3 Qf8 Ra6 Qh8 Bg3 Qh5 Rca3 Rc1 Red1 Rc2 Rdd3 Rd2 Rdc3 Rd3 Bde5 Rd5 Bd4 Rd8 Rd2
1B4Q1/1p3n2/1N2rb2/Nn1bP2p/nR1nR1Pk/1Q2K1r1/PPr4b/2nQ3q w - - 0 1 illegal: No proof kernel
1k2q1K1/8/P2bQR1R/1n1r2Qp/rP1q3P/q1pq3B/Nbn1PQ2/2q2bB1 w - - 0 1 legal: proof: d4 a5 g4 b5 c4 bxc4 b4 f5 Nd2 fxg4 Nb3 e5 dxe5 a4 Qd3 axb3 Qc2 Nf6 Qd1 Ng8 Kd2 h5 Kc3 g5 Kd4 d5 a4 Kd7 f4 c5+ Ke3 Kc7 h4 b2 f5 b1Q a5 d4+ Kd2 g3 f6 g4 e6 d3 Kc3 d2 f7 g2 e7 g3 e8Q Nh6 Qda4 d1Q Bd2 Ng4 Bc1 Bd6 f8Q Qa2 Rh2 Na6 Bf4 Ne3 Qeb5 Qe8 Nh3 g1B Nf2 g2 Qb3 Qa3 Ne4 Nc2 Be3 Bh3 Qf2 Rg8 Rh1 Rg5 Rc1 Bgh2 Bd4 g1Q Ra1 Be6 Bh3 Rd5 Be3 Qg4 Rf1 Bhe5+ Bd4 Qf4 Ra2 Na1 Rd2 Nc2 Rd3 Qf5 Rg3 Kc8 Rg6 Nc7 Rh6 Qfg6 Qe3 Qg3 Rff6 Qg4 Qf2 Qf4 Qd7+ Kb8 Qg7 Qf5 Qg5 Qg1 Kd2 c3+ Kd3 Nb5 Kc4 Qh7 Qa2 Bg4 Be3 Bf3 Bd4 Bg2 Qb3 Bf1 Be3 Rd3 Qa2 Bd4 Kd5 c4 Qb3 Na1 Qa2 c2 Nc3 c1Q Qb3 Rd1 Na2 Bb2+ Bd4 c3 a6 Qd3 Qc4 Nc2 Qc6 Ra7 Qc4 Rd7 Qb3 Qh8 Ke6 Rd8 Kf7 Qe8+ Kg7 Qg4 Bc5 Qgd4 Qg8 Qcd2 Q8d5 Ra1 Qe6 Qc1 Bb6 Bc7 Bc5 Rd5 Bb6 Bd6 Bc5 Qc6 Kg8 Qe8+ Rf8 Ne1 Qff5 Q4e4 Bg1 Qa5 Qf3 Qed4 Qf2 Qce3 Nc1 Nc2 Qff6 Ra3 Na2 Qc1 Qff7 Qa4 Qf2 Qb3 Bg4 Ra4 Bh3 Qd3c4 Kh7 Qa3 Rff6 Qcd3+ Kg7 Qe7+ Kg8 Qe8+
5n1N/1P2Rn2/n1Qqp2b/2p1nP2/rNP2bB1/n1k3PK/q1b2QN1/2r1R3 w - - 0 1 legal: proof: e4 g5 h4 gxh4 b3 f5 Bb2 fxe4 Bd4 d5 a4 b5 Be3 d4 axb5 dxe3 d4 Kd7 c4 Ke6 f4 c5 g3 a5 b6 h5 b7 e2 Kf2 e1N b4 a4 b5 e3+ Ke2 a3 b6 a2 Bg2 h3 Kf1 e2+ Kf2 h4 Bf3 h2 Nh3 Na6 b8Q Bh6 b7 Ng2 Bc6 e1B+ Kf1 Qd6 Qb3 Bd2 Nf2 h3 Nc3 Nh4 Qb6 Ng6 Nd3 Nf8 Rb1 a1N Nb4 Nc2 Rc1 Na3 d5+ Kf5 Nd1 Ke4 Ne3 Kd4 Bb5 Bf5 Qc6 Bc2 Re1 Kc3 Ng2 e6 f5 Bhf4 Ba4 Nh6 Qd8 Nf7 Qdc7 Be4 Bd1 Bc2 Bg4 Bh6 Qd8 Bdf4 Qh4 Nc7 Qd8 Ra4 Qh4 Na6 Qg5 Qc7 d6 Rh7 d7 Qd6 d8N Rh8 Rg1 h1Q Kf2 Qh2 Rh1 Qg1+ Kf3 h2 Qg7+ Qgd4 Qe5 Rh7 Qe2 Qd2 Qf2 Rh8 Rhf1 h1N Rd1 Bb1 Rfe1 Qa2 Rd2 Bc2 Rd5 Qb8 Rd7 Qd6 Re7 Rh7 Bh5 Rh8 Kg4 Rh7 Kh3 Rh8 Qe2 Rh7 Bg4 Nf2+ Kh2 Nd3 Kh3 Nde5 Qf2 Ng5+ Kh4 Rh8 Nf7 Rh7 Nh8 Ngf7 Kh3 Qa1 Rh1 Qa2 Kh2 Bg7+ Bh3 Rh4 Rb1 Bgh6 Rd1 Bc1 Rf1 Rd4 Bg4 Rd1 Kh3 Bcf4 Re1 Rc1
R3qN1N/1Pp3r1/1r1R1B2/1b1Kp2b/1b1n3P/3QPkn1/Pnb5/1QRb1q2 w - - 0 1 illegal: No proof kernel
1qRQ1nn1/Q3Rb1Q/1BNnpP2/2r1KP1q/8/1Np1P2P/4b3/1n1k1nbr w - - 0 1 legal: proof: c4 a5 g4 f5 gxf5 d5 b4 dxc4 Bh3 axb4 Bg4 h5 Ba3 hxg4 Bb2 Nh6 Bc1 Ng8 d4 Kf7 Kd2 Kf6 Ke3 Kg5 a4 c5 f6 b5 a5 b3 f3 c3 d5 b4 d6 b2 a6 c2 d7 e6 a7 c4 Ra4 b3 Ra1 c3 Nd2 b1N Kd4 Kf4 Bb2 c1Q Ra2 g5 Nf1 g3 Ba1 b2 Qb3 g4 Qa3 g2 Qa5 g3 Ne3 Bc5+ Kc4 Qd1 Nc2 Ba6+ Qb5 Qc7 d8Q Nd7 Ra4 Nf8 Nd4 Ke3 f4 Kd2 Rb4 Rc8 a8Q Qb8 Nb3+ Kc2 Nf3 g1N Qa7 g2 Ra4 Nh3 Ne5 g1N Nc6 Ng5 Ra5 Bf2 e3 Qh5 Kd4 Ne4 Qf5 Kd1 Qfh7 Be2 Rc5 Nd6 Rc4 Nd2 Rc5 b1B Bb2 Nf1 Ba3 Bg6 f5 Bf7 Ke5 Rc7 Bb4 Rc8 Ba5 Nf3+ Kf4 Bg1 Bb6 N3d2 Ke5 Bf2 Rg1 Nb1 Rg7 Bg1 Qg6 Rh6 Qh7 Rg6 h3 Rg2 Nb4 Rh2 Rc7 Rh1 Re7 Rc4 Nc6 Nbd2 Rc7 Nb1 Rc8 Be8 Rb7 Bf7 Re7 Rc5+
3q4/1p3KRb/1Q2P3/1N1N4/rP3Pnr/3pPRQn/qqQn4/nnB3bk w - - 0 1 illegal: No proof kernel
3k2n1/3Pqq2/qnPp1BQ1/1Q3nQ1/R1q3Nq/rN4b1/bK1P1RPp/2r5 w - - 0 1 illegal: No proof kernel
5k2/2PPRn1K/2Q1r1Q1/r1Pb2NB/r1n1q3/n1B1bqRp/q1p4P/3n1B2 w - - 0 1 illegal: No proof kernel
3Nn2N/k4bQ1/P1RbB3/r1bb4/K2P2p1/1P1nr1P1/1RQ1pnqN/1r3q2 w - - 0 1 illegal: No proof kernel
R2Kqq2/3nP3/N4k2/2Qbr1bQ/2nbr1p1/2B1p1PR/1n3PPQ/r1n3N1 w - - 0 1 illegal: No possible last move, all moves rejected
1K2n1R1/1Br2p1r/2q1kPP1/1b4Qn/NrP3Pp/2q1bRqQ/1n1B2R1/1r6 w - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 c5 b4 cxd4 Bd2 axb4 Bc1 d3 Nc3 e6 Nb5 e5 Nd4 exd4 Kd2 Ke7 c4 b5 e4 h5 f4 d5 g4 b3 a4 b2 e5 b1R g6 h4 a5 b4 a6 b3 f5 b2 e6 Bd7 a7 Qc7 Ra5 Qc6 Qf3 Na6 Bg2 Bh6+ Qf4 Nc7 Ra4 Rh7 Qe3 Nf6 Ra3 Nh5 Ne2 Ne8 Rg1 Rc8 a8R Rc7 f6+ Kd6 e7 Bf4 Be4 Ke6 Nc3 Bh6 Kd1 d2 Kc2 d1N Kb3 d3 Kb4 d2 Ka5 d4 Na4 d3 Qh3 Be3 Rd8 Qc5+ Ka6 Bb5+ Ka5 Qc6 Rg2 Ra1 Bf3 b1R Rc8 Rb4 Rc3 Qd6 Bb7 Nb2 Rb3 d1Q Bd2 Rb1 Rc3 Bc6 Ka6 Qg3 Rb8 Qc1 Rd8 Rb6+ Ka7 Rb4+ Kb8 Bb5 Ra3 Neg7 Rg8 Qc3 Be1 d2 e8Q+ Kd6 Qc8 d1Q Qf5 Qd5 Qg5 Ke6 Bd2 Ne8 Rb3 Qc6 Ra3 Qd4 Rc3 Bf4 Rd3 Qc3 Rf3 Be3
NNb1nrR1/2BP1nP1/nRKrp1PQ/1N1pQ1qq/3P4/8/1r3b1b/k4r2 w - - 0 1 illegal: Other
2bn2Q1/pR2n2Q/1b2r1nP/q4kr1/qP1p3q/3P2B1/PKQ1BN2/1R1r3q w - - 0 2 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g6 Nc3 g5 Nd5 f6 Ne3 f5 exf5 gxf4 g5 Na6 Ng4 hxg4 Bh3 Nb8 Bg2 Rh6 Bf1 Rh8 b4 Kf7 h4 c5 h5 e5 d3 d5 Kd2 c3+ Kc2 e4 h6 c4 f6 Kg6 f7 d4 Rh4 f3 Bg2 f2 Kb1 f1R Qe2 g3 Qe3 c2+ Kb2 c3+ Ka3 Ne7 Ne2 Nbc6 Bh1 g2 Nf4+ Kf5 g6 g1Q g7 Qa5+ Kb3 Rd1 g8Q Nd8 Qeg3 e3 Nh5 e2 Rb1 e1Q Bf4 c1Q Qf2 c2 Bf3 Qh1 Nf6 Qcd2 Qg7 Rg8 Ng4 Rb8 Kb2 Rb6 Bb8 Re6 Bg3 Qde3 Qe2 c1N Qc2 Ne2 Nf2 Nf4 Qh7+ Nfg6 Rg4 Qa4 Be2 Qe5 Re4 Qea5 Re3 Qh4 Re4 Qeh1 Re3 Bg7 f8Q+ Bf6 Re4 Rg7 Qfg8 Be5 Re3 Bc7 Re5+ Kf6 Rc5 Bb6 Rc7 Kg5 Rb7 Kf5 Qhh8 Nf8 Qhh7+ Rgg6 Qhh8 Rg5 Qhh7+ Nfg6
Rr3RbB/r1r1Q1q1/q2n4/p2n1pqQ/P1P3bQ/1P2N3/kbbN3P/7K w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a3 e5 e3 exf4 Bc4 b4 Ba2 b3 Qd2 bxa2 Qd3 Be7 Qd1 Bf8 Kf2 Ke7 Kg2 Ke6 h6 Kd5 h7 Kc4 a4 d5 c3 g5 e4 f5 e5 a5 e6 f3+ Kg3 d3 e7 d4 e8Q d2 Qee2+ d3 Qe7 g4 Qe5 f2 Kg2 f1Q+ Kg3 Nd7 Qc2 d1B Qd2 Kb3 Qde1 d2 Q1e3 Ndf6 Qg5 Nd5 Qe2 Ngf6 Na3 Bg7 Qh4 Ne8 Nc2 Ra7 Rb1 a1R Nf3 Ka2 Qee7 Nd6 Rg1 Be6 Ne3 Qa6 Kg2 g3 Kh1 Bg8 b3 Qd7 Bb2 Bc2 Rbc1 d1B Nd2 Bg4 Rce1 Rd1 c4 Qd8 Be5 Qf8 Ba1 Bb2 Qh5 Qg7 Rg2 Bf7 Rgg1 Rb8 h8Q Bg8 Qhh4 Qg5 Q8h5 Bc1 Bh8 Bb2 Ng2 Rc7 Re6 Re1 Rf6 Re6 Rf8 Re5 Qee8 Ree7 Re1 Red7 Qe7 Ra7 Re6 Rdc7 Ne3 g2+ Kg1 Rbb7 Ra8 Qg7 Rf6 Rb8 Rf8 Bh3 Kf2 g1Q+ Kf3 Q1g5 Kf2 Bg4 Kg1 Ne4 Kh1 Nd6
rqRbbRBQ/4k2p/3rP3/4bQ1P/P1P3n1/q3p2r/2q1R2B/1n1b1NK1 w - - 0 1 illegal: No proof kernel
1BkN2R1/bbq2rQr/1QP1qP1K/4p1rn/5P1n/1p2P2r/3R2R1/4N1nq w - - 0 1 illegal: No possible last move, all moves rejected
k1b1B2N/1b1r2qq/K1p5/P2p2bn/B1N3n1/Q1PPQnb1/r1BRPq2/8 w - - 0 2 illegal: No possible last move
bb1Q1nq1/1R2qpNR/P4kPn/7P/2b1QP1q/1q3pKN/4Q2r/1B2nr2 w - - 0 1 illegal: No possible last move
B4bQ1/1r4NQ/2RnpQ2/PPr4b/bn2rNn1/1p2P1bq/2Pq2R1/2k2K2 w - - 0 1 illegal: No proof kernel
KQ6/pP3pN1/n2nPr2/R4Bn1/r3Nrb1/3Qb2P/1qb2P2/2N1bRqk w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 Bd2 e3 Bg2 exd2+ Kf1 c6 Bh3 cxd5 Kg2 d4 Kg3 Ba6 Bf1 Bc8 Kg2 Rh5 Na3 Rh6 Nb1 Rh8 b4 Ke7 c4 Kd6 e4 Ke5 h3 Kf4 c5 g5 c6 d5 b6 g3 b7 g4 c7 d3 b5 d4 e5 Bb4 b6 Nh6 Qc1 Na6 b8N Nf5 b7 Rh6 Ra2 Rf6 Ra5 Nd6 Qc4 d1R Rc5 d2 Ra5 Qh8 Qa2 d3 Na3 Ra1 Qe6 d1N Qd5 d2 Nc4 Nc3 Nc6 d1B Qd3 Ra4 Nd4 Nce4 Nf5 Be1 Ng7 Ng5 Nd2 Bc2 Ne4 Be6 Be2 Rd8 c8Q Rd7 Qa8 Rc7 Qb8 Rcc4 Bf3 Bf5 e6 Rcb4 Kf1 g2+ Ke2 g3 Bg4 Rd4 Nf3 g1Q Nfd2 g2 Nb3 Qc8 Nc1 Qc3 Qh8 Qb2 Qb8 Qh2 Rf1 g1B Bh5 Qg2 Bg6 Bh2 Bh7 Qg1 Bg6 Nf3 Bh7 Bg4 Bf5 Rdc4 Qc3 Bd1+ Kd3 Ng5 Qb3 Kf3 Qa3 Kg2 Ke3 Be5 Qd3 B5c3 Kf4 Rd4 Ke5 Rdb4+ Kd5 Bd4 Kc6 Bc2 Kd7 Be3 Kd8 Nc4 Kc8 Kh1 Qe5 Nc7 Kb8 Na6+ Ka8 Nd6 Qg3 Ne8 Qb8 Nd6 Nc5 Rf4 Ne4 Bc3 Re1 Bb4 Rf1 Be1
1B2n3/1QPBrb2/6pP/1p6/rr3KP1/b1r2bQ1/1P2R1RB/1knq1bNb w - - 0 2 legal: proof: f4 b5 g4 h5 a4 e5 d4 exf4 a5 c5 Nc3 cxd4 Ne4 h4 Ng3 Qb6 axb6 hxg3 Kd2 Ke7 c4 Ke6 h4 Ke5 e4 f5 b7 a5 h5 d5 h6 d3 c5 Kd4 e5 g6 c6 g2 c7 a4 e6 a3 e7 f3 e8Q f4 Qd8 f2 Rh2 a2 Rh1 f3 Qc2 Na6 b8B Nf6 Rh5 Ne8 Qc6 Rh7 Rg5 Be6 Ba7+ Nc5 Nh3 g1R Qb8 Rg3 Rb1 a1R Kd1 d2 Kc2 d1B+ Kd2 Ra3 Rh5 Rb3 Bb6 Ra4 Ba5 Nd3 Qba8 Ba3 Bg2 Re7 Re5 Bf7 Qab7 Rbb4 Qd6 f1Q Ra1 f2 Bb6+ Kc4 Bh1 Kb3 Ba7 d4 Bc6 Bc2 Rb1 Ka2 Bb8 Bcb3 Re3 Bbd5 Bd7 Bh1 Re6 Qg1 Ke2 Rf3 Bf4 Rg3 Rd1 Nc1+ Kd2 d3 Re2 Rge3 Bh2 Kb1 Qg3 Qf1 Ng1 Rf3 Re6 Re3 Re1 Rf3 Rc6 Rfe3 Rc2 Rf3 Kc3 d2+ Re3 d1B Kd2 Be2 Re5 Rc3 Re4 Rcc4 Ke3 Qd1 Kf4 f1B Rd2 Rc3 Rc2 Bef3 Rg2 B7c4 Ree2 Bf7+
3B1rb1/1rQ4q/1b2pP1P/K1nN4/np2P3/NP1n2B1/nN2R1b1/k2b2bQ w - - 0 2 legal: proof: g4 f5 gxf5 c5 d4 cxd4 Bd2 a5 Bg5 a4 Bc1 a3 b3 h5 Nd2 Nh6 Rb1 Ra5 Bh3 Ng8 Bg4 hxg4 Rb2 axb2 a4 Ra8 c4 Kf7 h4 Kf6 f4 b1B h5 g5 h6 d5 e3 b5 a5 d3 a6 d4 c5 e6 c6 b4 a7 g3 c7 g4 Qc2 g2 Qc5 g3 Qb5 Rh7 Qa5 Nd7 Qb5 Nc5 Qa5 Qd7 Rh2 Bb7 c8Q Ne7 Qb8 Ng6 Bb2 Ne5 Ngf3 g1N Qbc7 g2 Nc4 Ne2 Kd2 g1B Ne1 Bg2 Nc2 Nc3 Qa1 N3a4 N2a3 Be7 Bc1 Rf8 a8N Bd6 Nab6 Qe7 Qd8 Bb8 Nb2 Ba7 Qc7 Rhf7 Ke1 d2+ Ke2 d1B+ Kd2 Bge4 Re2 Bbc2 Qb1 d3 Qa1 Rh7 Qb1 Bg2 Nd5+ Kf7 f6 Kg6 f7 Kf5 Qb6 Ke4 f5 Bh2 Re1 Bh5 Re2 Rg7 Ke1 d2+ Kf2 Bg6 f6 d1N+ Ke1 Ndc3 Kd2 Na2 Qb7 Bh7 Qc8 Re8 f8B Bg8 Qa1 Qb7 Be7 Rf8 Bd8 Qf7 Qb8 Qg6 Qb6 Rb7 Qc7 Qh7 Re1 Kf3 e4 Kf2 Re2+ Kf1 Ke3 Ned3 Rf2+ Ke1 Kd4 Bf3 Kc4 Bg2 Rf5 Ke2 Qb1 Ke1 Bf4+ Ke2 Qg1 Bd1 Bg3 Kd2 Qh1 Kc1 Rf2 Bg1 Re2 Bc2 Nb5 Kb1 Na3+ Ka1 Qb6 Bf1 Kb5 Bg2 Ka5 Bd1 Qc7 Bb6+
k1K2N1R/pq1Qb3/n1Pp3r/1Q1PRP2/2bn3b/3Nb3/Pr2Bq2/bb2Q3 w - - 1 2 legal: proof: e4 b5 h4 g5 b4 gxh4 e5 c5 bxc5 b4 e6 fxe6 Qf3 e5 Qd1 e4 c4 b3 d3 b2 Na3 bxc1B Rb1 Bf4 Rc1 Be5 Rc2 Bb2 Rc3 Ba1 Ke2 h5 Ke3 e5 f4 h3 g4 h2 c6 d6 f5 h4 g5 h3 c5 Be6 c7 Kd7 d4 Kc6 g6 Kb7 g7 Bc4 Qe2 Na6 Qc2 Ne7 g8Q Nc6 Ne2 Rb8 c8Q+ Ka8 Qd7 Be7 Qd5 Rb2 Qa4 Qb6 Nb5 Rh4 Qd1 Rh5 Rg1 h1Q Nc1 Qg2 Rh1 h2 Ra3 Rh8 Ra5 Rh4 Nd3 Rh5 Rg1 Qc2 Rg7 Rh6 Rh7 Qg2 Nf2 h1B Nc7+ Kb8 Ne6 Ka8 Nf8 Qh2 Bd3 Bf3 Qh1 Be2 Bc2 Bed3 Bd1 Bb1 Nd3 Qc2 Rh8 Qg2 Qe1 Qf1 Qd2 Qf4+ Ke2 e3 Rb5 Qh2+ Kf3 e2 Ke4 e1B Ra5 Bf2 Bf3 Bb5 Qc4 Qg2 Kd5 e4 Be2 Be3 Qe1 Qf2 Qa4 Ne5 Qb3 Nf3 Qc4 Qd8 Qb3 Bc4+ Kc6 Qb8 Qe6 Qb4 Kd7 Qb6 c6 Nh2 Re5 Nf3 d5 Nd4 Bd1 Bf4 Qd2 e3 Qb5 e2 Kc8 Be3 Qc3 e1B Qcb4 Qc2 Qd7 B1h4 Qe1 Qf2 Be2 Qb7+
8/1p3nr1/1RRbp3/1P1Q2BQ/P1rPPn2/K3qBnr/1nb2b2/k1b1NQ2 w - - 1 2 illegal: No possible last move
bq5b/1k1b1Q2/rN2P1P1/2n2pQN/pKn1PB1r/1n1q4/P1R5/1Rb1Qn2 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 Bh3 e5 dxe5 gxf4 g5 Bd6 Bf5 Bf8 Bg4 hxg4 Kd2 f5 Kc3 c5 h4 d5 b4 Kd7 e6+ Kc7 b5 a5 b6+ Kb7 g6 a4 e3 f3 h5 f2 h6 f1N h7 d4+ Kc2 c3 Qe2 g3 Qf2 g2 Qf3+ Nc6 Nh3 g1Q Nf4 d3+ Kd1 d2 Kc2 c4 Qg4 Bd7 Bb2 Na5 Bc1 Bg7 Nh5 Nf6 Rh2 Ne4 Qg5 Nc5 Na3 Qg3 Rb1 Ra6 e4 Qdb8 Nb5 Bf6 Na7 Bd4 Nc8 Be5 Kd1 c2+ Ke2 c3 Rg2 Rd8 h8Q Nc4 Qhf6 Rh8 Qf7 Rh6 Rf2 d1B+ Ke1 Be2 Bf4 Qd3 Rh2 c1B Rg2 Kc6 b7 Bh8 Nb6 Bd1 Re2 Bb3 Rh2 c2 Rg2 Qc8 b8Q Rh7 Qe5 Qb8 Qa1 Kb7 Rh2 Bcb2 Rd2 c1N Rc2 Ba3 Nf6 Rh4 Nh5 Nd6 Qc3 Bd5 Qd2 N1b3 Kd1 Qb5 Qe1 Nc4 Ke2 Bab2 Kd1 Bc1 Ke2 Ka7 Kd1 Ba8 Ke2 Nb7 Kd3 Ne5+ Kc3 Qd3+ Kb4 Nc4 Rbb2 N7c5 Rb1 Kb7
N1b5/1b1Q2Q1/q2q3p/RPq3bK/R1Qn1n2/P1rp3P/3P3N/bB3rqk w - - 0 2 legal: proof: b4 b5 Bb2 g5 Qc1 g4 Kd1 g3 Bf6 gxf2 c4 a5 cxb5 axb4 Qc2 exf6 Kc1 f5 Qd1 f4 e4 Ke7 g4 Ke6 h3 Ke5 g5 f5 g6 d5 g7 c5 a3 b3 Qe1 d4 Kd1 h6 Ke2 c4 Kf3 b2 Be2 f1B Qh4 d3 Qf2 c3 Qh2 c2 Bd1 c1B Be2 Nf6 g8Q Be7 Qg4 Rf8 Qgg2 Nh5 Nc3 b1Q Bd1 Bg5 Qgg3 Qc2 Qh4 Qd6 Qg2 Nc6 Ra2 Bb2 Na4 Qcc5 Nb6 Ba1 Rb2 Ra4 Rh2 Rc4 Rb4 Rc3 Bc2 Rf7 Ra4 Nd4+ Kf2 f3 Bb1 f4 Na8 Rf5 Ra5 Rf8 Qgg4 Bg2 Qd7 Bh1 Rg2 Rf6 Rg4 Qa6 Qg7 Qcd6 Ke1 f2+ Kd1 f3 Rf4 Ke6 e5 Kd5 e6 Bg2 Rg4 Nf4 e7 Rf5 e8Q f1Q+ Qee1 f2 Nf3 Qg1 Nh2 f1Q Qd7 Be7 Qg5 Qff2 Qg7 Bg5 Qf1 Qf3+ Ke1 Ke4 Rh4 Qh5 Rg4 Qh1 Kf2 Qg1+ Kg3 Qe8 Qdf7 Qee5 Qc1 Qec5 Qd7 Nc6 Nc7 Rc4 Qd1 Re5 Qb3 Rc3 Rh4 Re8 Kg4 Nh5 Nf1 Rf8 Nh2 Rf1 Nd5 Ng3 Nf4 Ne2 Kh5 Bf3+ Ng4 Bg2 Ne6 Kf3 Nc7 Bh1 Nh2+ Kg2 Rha4 Ncd4 Na8 Nf4+ Kg4 Qf2 Qb4 Kg1 Qc4 Bhb7 Qcf7 Kh1 Qc4 Nfe2 Kh5 Qg2 Qge7 Qg1 Qg7 Nf4#
Qn1N4/1P3r1p/qN1p2r1/2k4b/rR1N2Rn/B1qP2QP/q1P4r/2Kb2q1 w - - 0 2 legal: proof: f4 b5 a4 bxa4 b4 e5 b5 exf4 g3 c6 b6 Qf6 Bg2 Qd8 Bd5 f5 Bc4 f3 Bb5 cxb5 Kf2 Bd6 Ke3 f4+ Kd3 f2 Kd4 f3 Kc3 Bf4 gxf4 Kf8 Ba3+ Kf7 Bc1 Ke8 Kb2 Ke7 e4 Kd6 b7 f1R e5+ Kc5 f5 a5 f6 g5 e6 g4 e7 g3 e8N f2 h3 g2 f7 d6 f8Q a3+ Kb3 b4 d3 a2 Kb2 a4 Qe2 a3+ Kb3 Qa5 Bd2 Ne7 Qe6 Rg8 Qg7 Qa6 Qgh6 Rg6 Bc1 Nf5 Ng7 Nh4 Qe1 Bg4 Nd2 Bh5 Rb1 a1Q Nc4 a2 Ne2 g1Q Nb6 Qf6 Bb2 a1Q Ba3 Qac3+ Ka2 Qf7+ Rb3 Qg8 Kb1 Qd5 Rb2 Qa2+ Kc1 Ra7 Nd4 Bd1 Rb1 Bh5 Bb2 b3 Rh2 Bd1 Rg2 Bh5 Rg4 Ra8 Kd1 Ra7 Bc1 b2 Qe3 Ra8 Qe8 Ra7 Ra1 b1R Nge6+ Kb4 Nd8 Kc5 Ke2 Ra8 Bb2 Rd1 Rb1 Rd2+ Ke3 Qb5 Bc1 Ra4 Rb4 Qbc4 Ba3 Qa6 Qb1 Rfd1 Qf8 f1B+ Qf2 Be2 Qa1 Qb1 Qa2 Rf1 Qg8 Qa2 Qf8 Qh1 Qg3 Rf7 Qe8 Bf3 Qh8 Rh2 Qe8 Bg2 Ke2 Bf1+ Kd1 Qg2 Kc1 Be2 Qe6 Bd1 Qc8+ Nc6 Qb8 Qg1 Qa8 Nb8
5k1N/1nBp1q1n/1Pnr3p/3P4/1QRb1Q2/n3nr2/2Pq3P/KqNQr2R w - - 0 1 illegal: No possible last move
3Q1Rqk/4p3/3nrbb1/Qq4p1/3PPPP1/R3q1Nn/2bq2K1/2nBNb1Q w - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 dxc4 h5 g5 Rh4 f5 Bb2 b5 Rh1 f4 Bd4 Ra6 Be3 Rg6 hxg6 fxe3 a4 c5 g4 h5 d4 e2 f4 b3 Kf2 e1Q+ Kf3 b4 g7 Kf7 a5 b2 a6 c3 a7 b3 a8Q c4 Rh3 c2 Rh2 c1Q Rf2 c3 Bh3 h4 Qc6 c2 Qb7 Nh6 Qc6 Kg8 Ra3 Na6 Bf1 h3 Re2 h2 Qd5+ Nf7 Qe5 h1B+ Bg2 Nd6 Nh3 Bf5 Nc3 b1B Na2 b2 Rd2 Nb4 Qc5 Rh6 Rad3 Re6 Nf2 Bg6 Ra3 Nd3 Nb4 Qe8 Re2 Qcd2 Qa5 c1N Nc2 Qg1 Ne1 Bc2 Re3 b1Q Rc3 Qb4 Rc8 Qbb5 Kg3 Qd8 Kh3 Kh7 Bf3 Kg8 Be2 Bf3 Nh1 Qf2 Ng3 Qg1 Bf1 Be2 Rf3 Qge3 Kg2 Kh7 Ra8 Nf2 g8Q+ Kh6 Rc8 Bg7 Rb8 Qc8 Qgd8 Bf6 Ra8 Kg7 Rb8 Bc4 Be2 Nh3 Ra8 Qec3 Rd3 Qe3 Rb8 Qcd2 Ra3 Kh7 Qdc7 Qh8 Rf8 Qg8 Qd8 Kh8 Nd3 Qdb4 Qh1 Qe1 Bd1 Q1d2+ Nf2 Be2 Nd3 Qe5 Ne1 Qd5 Qaa8 Qb5 Qaa5 Bf1#
3b4/PQ3qq1/P1rRqB1p/pp1r3P/P3n2r/3nkB2/4b2B/K3RQbN w - - 1 2 illegal: Other
6Bn/2qNk3/r3p1BP/b2p1nqK/1Rb2P1p/2bnPrQ1/5Q1P/2qN1N2 w - - 0 2 illegal: No proof kernel
3k1N2/7P/pq1P1b2/2P1n3/Prb2qRr/1N1RrpqR/2pb1BQ1/Q1K1n3 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 e5 Bg2 exf4 bxc5 Qg5 c6 d5 c5 Qe7 Be4 Qd6 Bd3 Qd8 Bc4 dxc4 h4 g5 d4 f5 Kd2 b5 e4 a6 a4 f3 c7 b4 d5 f2 h5 f1Q e5 g3 d6 g4 h6 f4 e6 g2 e7 g3 Qf3 c3+ Kc2 Nd7 Rh4 Ne5 Nh3 g1B Bd2 g2 Qe2 Nd3 Qd1 Nf6 Be3 Bg7 Rg4 Be6 c8R Bc4 Qd2 Nd7 Ra3 Bf6 Qe1 b3+ Kd1 b2 Rg6 N7e5 Nd2 b1R+ Kc2 f3 Rg4 Rb4 Qa1 Ne1+ Kc1 c2 Rd3 Bf2 Nb3 g1Q Rb8 Qg3 Ng5 Bg1 Rb7 Qb6 Nh7 Qff2 Bd4 Qfh2 Bf2 Qhh4 Rb8+ Kd7 Rbg8 Re8 Nf8+ Kc8 R8g5 Bh2 Rh5 Qg5+ Be3 Q5f4 Rh3 Bg1 Bd2 Bd4 Be3 Bc3 h7 Rg8 Rd5 Rg5 Rd1 Rh5 Rd3 Rd8 e8Q Rh4 Qg6 Re8 Nd2 Kd8 Bf2 Nf7 Qg8 Re3 Nb3 Ne5 Qg7 Qh2 Qg8 Qfg3 Rgd4 Qf4 Qg2 Qfg3 Rg4 Qf4 Qg1 Qhg3 Qg2 Bd2+
b2qR1N1/1rB3p1/qQbBK1n1/3r3B/k1pn2P1/2n1q1p1/2PP2PN/r4Q2 w - - 0 3 illegal: No possible last move
3rNQ2/bq2q2N/k2PN3/3QKpnn/P3qnb1/P2p1Rbr/5Pp1/1B4B1 w - - 0 1 legal: proof: c4 e5 g4 d5 d4 h5 a3 hxg4 b3 dxc4 d5 a5 Ra2 a4 bxa4 Ra6 Rd2 Ra8 Rd4 exd4 Kd2 Kd7 e4 g5 h4 c5 e5 Kc7 h5 Kb6 h6 d3 Kc3 g3 e6 g2 h7 g4 e7 g3 e8Q Ne7 Be3 Nd7 Bg5 Ka6 Qc2 b5 Rh3 b4+ Kd2 b3 Ke3 c3 Kf4 c4 Nd2 b2 Qb3 b1Q Ne2 g1N Nf3 c2 Ne5 c1B+ Ke4 c3 Nd4 g2 Bf4 c2 Nc4 Nf6+ Ke5 Be3 Be2 c1Q Rf3 Qe1 Bd1 Bg4 Nd6 Nh3 Bh2 Ng5 Bc2 Nh5 Bg1 f5 Ne6 Qd7 Qa2 Qbb7 Bb1 Rd8 Qf7 Qeb4 Ne8 Ba7 d6 Bh6 Qg7 Nd5 Qf8 Ndf4 Qd5 Qe7 Qc5 Rg8 h8N Rg7 Ng6 Rh7 Qg7 Qc4 Nf8 Rh8 Nh7 Qcb4 Qf8 Qe1+ Kd4 Qee4+ Kc3 Bg7+ Qd4 Be5 Kc4 Qe3 Qd5 Qe4+ Nd4 Nfe6 Nhf6 Nhg7 Kc3 Rh1 Nh7 Bg3 Kc4 Nf4 Kc3 Qe3 Ne6 Ngh5 Kc4 Rh3 Kc3 Qe1+ Kc4 Kb6 Kd4 Qb4+ Ke5 Ka6 Bc2 Qc4 Bb1 Qe4+
b6R/b3QQqq/b2p2qN/1B1KPp2/5BQP/3pR3/k1Pr1Pn1/r1n3r1 w - - 0 1 illegal: No possible last move
R2brR2/1q2Q1q1/rN2P1k1/PK1p1pp1/n3NB1r/2N4n/3P2Pb/nb4Q1 w - - 1 2 legal: proof: c4 g5 f4 e5 b4 exf4 h4 b5 e3 a6 h5 Qf6 Bd3 Qg6 hxg6 Bh6 Be4 Bg7 Bc6 bxc4 b5 Bh6 b6 Bf8 Bb5 axb5 Ke2 c5 a4 d5 g7 h5 a5 f3+ Kf1 f2 Ke2 h4 e4 f1Q+ Ke3 h3 e5 h2 b7 b4 Qe1 c3 Qd1 c2 Ra3 b3 Ne2 b2 Kd3 c4+ Kd4 c3 Rb3 Nf6 g8Q Bf5 Ra3 Nbd7 b8N Ng4 Rg1 h1R Ra4 Ra6 Ra2 R1h4 Ra4 Nc5 Nf4 Nf2 Rc4 Nh3 Qg6 Be7 Qd6 Bd8 Nd7 Na4 Rc8 f6 Rb8 Kf7 Ra8 Re8 Nb6 Be4 Rh1 f5 Ne6 Kg6 Qe7 Qb5 Qf1 Qd7 Nc5 Qa7 e6 Qc7 Na3 b1Q Bb2 c1N Nb5 c2 Qg1 Bd3+ Ne4 Nb3+ Ke3 c1B Nbc3 Na1 Kd4 Bc2 Ba3 Bb2 Bd6 Ba3 Bf4 Bd6 Rh2 Qb7 Rh1 Qd1 Rh2 Bb1 Rh1 Nb2 Rh2 Bb8 Kc5 Na4+ Kb5 Qh5 Rh1 Qh7 Rh2 Qg7 Rh1 Nf2 Rh2 Rg4 Rh8 Nh3 Rf8 Rh4 Be3 Bg3 Bf4 Bh2
q1Nr1kN1/1Kpp4/2n2N1P/B2nq1bR/P1P1P1Q1/r1R3nq/1p6/Qb1r4 w - - 0 1 illegal: No possible last move
1Bb1R3/Q2Q3p/r1P1nP1P/4b1R1/3pN2K/2Ppqrn1/1b2r2r/1BkB3r w - - 0 1 illegal: No possible last move, all moves rejected
R1bq1b2/1k2bnN1/p1RQP2r/PB1p1b1R/2Pp4/3n1n1r/3P4/1K1B2bQ w - - 0 2 legal: proof: g4 f5 b4 fxg4 Bb2 c5 bxc5 h5 Be5 h4 Bg3 hxg3 Nc3 e6 Nb5 e5 Nd4 exd4 e4 g5 f4 b5 a4 d5 h4 Kd7 h5 Kc6 f5 b4 e5 g2 f6 a6 h6 b3 f7 b2 a5 b1B h7 g3 Ne2 g1N Rh5 g2 Ng3 g4 Bb5+ Kb7 c6+ Ka7 c7 Kb7 Nf5 g3 Ng7 Nd7 c4 Be4 Rb1 Bf5 e6 Be7 f8Q Nh6 Qc1 Rb8 Kd1 Ne5 Rb2 Nd3 Kc2 Nf7 Kb1 Nf3 Qh1 g1B Rb3 Ba3 Qd6 g2 Rb2 Bh2 Rb4 Re8 h8R g1B Rb2 Bg3 Ba4+ Bb4 Bd1 Bh4 Rg8 Be7 Rb3 Ka8 Rgh8 Ba3 Rb6 Bb4 Rc6 Rb5 R8h6 Rh8 Rg6 Rh6 Rg4 Bb7 c8B Rb6 Bd7 Bc8 Rg6 Kb7 Rf6 N7e5 Rf8 Nf7 Rc5 Ba3+ Bb5 Bb4 Rg8 Ba3 Rc6 Bf8 Qf4 Bae7 Qd6 N3g5 Qf3 Nf4+ Kc1 Qc7 Qda3 Bd7 Ne8 Bg7 Bba4 Rb3 Qh1 Rh3 Qd6 Nf3 Bb5 Nd3+ Kb1 Qb8 Nf6 Qc7 Ra8 Bgf8 Ne8 Bc8 Ng7 Qd8
R2BQ3/Qr1b2Q1/K2b3P/1p1k1n2/nr4qR/1Pb1b1p1/P2brPp1/6NN w - - 0 1 illegal: No extended proof kernel
2bQ4/r2p1nbr/p1R1pBR1/b1P1qb2/R1P3KN/8/nPB1P3/1b2Qn1k w - - 0 1 legal: proof: f4 b5 g4 g5 d4 c5 a4 bxa4 dxc5 h6 Nc3 gxf4 Ne4 h5 g5 Na6 Nf2 Nb8 Ng4 hxg4 Kf2 f5 h4 Kf7 c4 Kg6 Qc2 Kh5 g6 f3 Kg3 a6 g7 e6 Nh3 f2 Rg1 a3 Qb3 a2 Qb4 f4+ Kh2 f3 Kg3 Nc6 Qb5 Qg5 Rb1 a1N Bf4 Nb4 Bc1 Qe5+ Bf4 Nh6 g8Q Bg7 Qd8 Na2 Qf6 Rh7 Qa4 Ra7 Ng5 Nf7 Qd8 Nc2 Qaa5 Ne3 Bh3 f1B Rd1 f2 Qe1 Bg2 Ra1 Be4 Nf3 f1B Rg2 Bb1 Rg1 Kg6 h5+ Kf5 h6 Ke4 Kh4 g3 Bg5 g2 Bf6 Kf4 Bf5 Qd6 Bc2 Qe5 Rh1 g1B Rh3 Bh2 Rg3 Bh3 Rg6 Bf5 Kh5 Nc3 Nh4 Nf1 Ra5 Na2 Ra4 Rh8 h7 Bg3 Qd1 Be1 Qc1+ Bd2 Qd1 Ba5 Qe1 Re8 h8R Re7 Rf8 Ke3 Qd1 Kf2 Re8 Bd3+ Kg4 Kg1 Qe1 Kh1 Qb6 Bb7 Rc8 Bde4 Rc6 Bc8 Qd8 Bf5+ Kf3 Re8 Rh6 Rh8 Rg6 Bd3 Kg4 Rh7 Kh3 Be4 Kg4 Bf5+
4rB2/1Bp2P2/1N2bN1Q/n1P2bqr/Q1pP4/1pn1Nn1R/nP4b1/K1r1k3 w - - 0 2 legal: proof: h4 g5 e4 gxh4 e5 b5 e6 b4 a3 b3 Ke2 Bg7 Ke1 fxe6 Nh3 e5 Ng1 e4 c4 Bc3 Ra2 Bb4 axb4 Kf8 Ra5 Ke8 Rd5 d6 Rd4 d5 c5 Qd7 Rc4 dxc4 Qf3 Qd4 Qd1 Qd8 d4 Kf7 Kd2 Ke6 Kc3 Kd5 f4 e5 g4 a5 g5 h5 f5 h3 b5 h4 g6 a4 g7 h2 b6 h3 b7 a3 f6 a2 f7 a1N Be2 e3 Qd2 Ke4 Nf3 Nc6 b8Q Nf6 g8N Rh5 Qe1 Na5 Rg1 h1B Qg3 h2 Rg2 Bf5 Qb4 Nc2 Bd1 e2 Qh3 e1N Qa4 Nb4 Bh6 Nfd5+ Kd2 Na2 Nh4 Ndc3 Rg3 Bg2 Bf8 h1B Nf6+ Kf4 Rd3 e4 Bf3 Qe7 Re3 Re8 Rd3 Be6 Nf5 Qd8 Ne3 Qe7 Qf5+ Kg3 Qh7 Kf2 Qh6 Bgh3 Bg2 Bhf5 Bf3 Nb5 Nc3 Bg2 Ncd5 Nbc3 Nb6 Qd8 Nh7 Qg5 Nf6 Nb4 Be2 Nf3+ Kc1 Ke1 Bd1 Nbd5 Bc2 Na2+ Kb1 Ndc3+ Ka1 Bd5 Nf1 e3 Bb1 e2 Ne3 Kf2 Bc2 e1R+ Bb1 Re2 Bc2 Bde6 Bd1 Rc2 Be2 Nd2 Bf3 Ke1 Bb7 Nf3 Nf1 Nd2 Rh3 Nf3 Ne3 Rc1#
bb2RBn1/P1kB4/2br1NQ1/1BK5/b1p1RPq1/bpP4n/pPQ1r3/q7 w - - 1 2 illegal: No possible last move, all moves rejected
1q1Q4/1P3NK1/1Qp1q1r1/q2b4/3BP1rp/bP2nq1P/NnB1QpRn/k7 w - - 0 1 illegal: No possible last move, all moves rejected
1r3Q2/qR1P4/3bPq2/p1k1PrN1/4Q3/Rb3Bqp/1Bpbn2P/1Kb2R1n w - - 0 1 legal: proof: c4 b5 f4 e5 fxe5 g5 a4 d5 Nc3 dxc4 Nd5 bxa4 Nf4 gxf4 e4 Ke7 b4 a5 g4 h5 d4 f5 Kd2 c5 Kc2 f3 e6 Kd6 b5 h4 d5 a3 g5 c3 b6 h3 g6 f4 b7 c4 g7 a2 Qe2 f2 Bd2 f3 Qd1 Qg5 Qc1 Nc6 b8Q+ Kc5 Qg3 Rb8 Bf4 Rh5 Bd2 Nd4+ Kd1 Nf6 g8R Ng4 Rb1 a1B Rb6 Bd6 Qf4 Ne2 Bg2 f1Q+ Kc2 f2 Nf3 Qg1 Rb7 f1Q Qf8 Nf2 Qe1 Qg3 Bc1 Rf5 Kb1 Bb2 Ng5 c2+ Ka2 Bd4 Bf3 Be3 Bb2 c1B Kb1 Bed2 e5 Bd7 Rg7 Ba4 Rb3 c3 Ra3 Bb3 Rb7 Nd4 Qe4 Ne2 Rf7 Qg1g2 Rg1 Nh1 Rb7 Qff2 Rf1 Qh4 Nh7 Qf6 Ng5 Qgg3 Qh4 Be7 d6 Qd4 d7 Bd6 Bg4 Kd5 Qh7 Qa7 Bf3+ Kd4 Qh4+ Kc5 Qe4 c2+
r3bnb1/1QB2rQ1/q4Rpp/1n1pNqP1/NPN5/nb3K1P/3P3k/R4b2 w - - 1 3 legal: proof: f4 e5 b4 exf4 a3 b5 Ra2 a5 Rb2 axb4 Nc3 b3 Nb1 b4 Ra2 b2 Ra1 b3 Ra2 Bc5 Ra1 Bb4 axb4 c5 e3 c4 Na3 b1B Bd3 b2 Be4 Na6 Bc6 Nb8 Ba4 Nc6 Bb3 cxb3 Kf2 Nb8 Ke2 Nh6 Ke1 Ng8 Kf2 Ke7 c4 Kd6 g4 Ke5 e4 d5 g5 f5 c5 h6 c6 f3 c7 Kf4 e5 g6 e6 Nc6 e7 Bc2 e8N b1Q h3 b2 Ra2 Na7 Nd6 Rh7 Ne4 Nf6 Nb5 Be6 c8Q Bb3 Qc4 Rf7 Qc8 Qb6+ Nd4 Nh7 Ra1 Qa6 Nc6 Nf8 Nc5 Nb5 Qb7 Qc2 Qe2 b1N Na4 N1a3 Na5 Qb1 Nc4 Qd3 Ke1 Kg3 Qe5+ f4 Qg7 Qf5 Bb2 f2+ Ke2 f3+ Ke3 f1B Be5+ Kg2 Bc7 f2 Nf3 Be2 Rhc1 f1B Nfe5 Kh2 Rc3 Bg4 Rd3 Bd7 Rd4 Be8 Rf4 Qc2 Kf2 Be6 Kf3 Qf5 Qh8 Rh7 Qf6 Bg8 Qg7 Qc2 Rf6 Qb1 Qh8 Rf7 Qg7 Qf5+
1Q4qN/1Pp2B1b/b1N3b1/Q1r2kPP/1R1nqp2/1n1pbPRn/8/1Kr2Q2 w - - 0 1 illegal: No proof kernel
Nr1n4/kP1nP1bp/b1Qq4/p1NQ1B1P/5r2/bK2p2R/B1q1Pb2/q2N4 w - - 1 2 illegal: No proof kernel
4N2Q/pbn4P/B3B2P/3nQ3/P3R1nr/1K1p1bpq/Qq1P1k1r/b4nN1 w - - 0 2 legal: proof: f4 e5 e4 b5 a4 h5 b4 h4 c4 bxc4 f5 h3 gxh3 f6 h4 Bd6 Ra3 Be7 Rf3 Bf8 Rf4 exf4 h5 Nh6 e5 Nf7 e6 Nh6 Bb2 Ng8 Be5 fxe5 h4 Ke7 f6+ Kd6 f7 Kd5 e7 Ke4 e8B c5 b5 d5 b6 g5 h6 c3 b7 g4 h5 c2 Bd7 c1N Bc6 g3 Rh2 c4 Bg2+ f3 Rh3 c3 Rh1 c2 Rh2 Qd7 Bh3 f2+ Kf1 Na6 b8Q Ne2 Na3 c1Q Nb5 Nf6 Nc7 Nf4 Bb5 Bg7 f8Q d4 Be6 N4d5 Ke2 Bb7 Bg4 f1B+ Ke1 Kf4 Re2 e4 Bc4 Qa3 Qa1 e3 Kd1 Bg2 Kc2 Bh1 Re1 e2 Qa2 Qc1+ Kb3 d3 Qbe8 Rc8 Rd1 e1N Qe2 Nc2 Re1 Nce3 Ne8 Nf1 Bb5 Rc4 h7 Nac7 Qc5 Rf8 h6 Be4 Bh5 Qh3 Bg6 Bg2 Qe6 Rd4 Ne2+ Kf3 Bf5 Rh4 Qd4 Ng4 Ba6 Bh1 Qd6 Kg2 Bd7 Rf2 Be6 Kf3 Qc3 Rh2 Ng1+ Kf2 Re4 Bf3 Qf8 Bf6 Qh8 Bg7 Qcb2 Qa1 Qf6 Qc1 Qf4 Ba1 Qfe5 Qb2+
k2BnrN1/2pQ3r/2P1B2r/P5qQ/2P1p1P1/Qqq1R3/3pb1qR/1K2n1b1 w - - 0 1 illegal: No proof kernel
1B2Bk1n/P1N5/BKp2bqq/2Pp2R1/2nP2p1/q1b1P1n1/q2R1Q2/1r2Qr2 w - - 1 2 legal: proof: d4 h5 g4 hxg4 b4 e5 f3 a5 Nc3 axb4 Na4 b6 Nc5 e4 Nd3 exd3 Bb2 Bb7 Bc1 Be4 fxe4 Rh6 Bb2 Rh4 Bc1 Rh8 Kf2 g5 Ke3 f5 a4 d5 c4 g3 h4 f4+ Kf3 d2 a5 b3 a6 g2 e5 b5 c5 b4 a7 g4+ Kf2 b2 e6 b1Q e3 f3 e7 c6 h5 b3 h6 b2 h7 Qg6 Qc2 b1Q Nh3 d1N+ Kg3 g1B Kf4 f2 Ke5 Nf6 Qd3 Qa2 Qc3 Nb2 Qe1 Nh5 Bd2 Ng3 Qc1 Qda5 Nf4 Q5a3 Ne6 Nd7+ Kd6 Bg7 Kc7 Nf8 Be1 Rb8 Rh5 Bf6 Ba6 f1Q Rg5 Qh3 Qb1 Rg8 h8Q Bf2 Qh4 Rb5 Ba5 Be1 Qd1 Bc3 Qe1 Rg7 Rd1 Rf7 Rd2 Qh1 Qh2 Rb4 Qhe2 Qhh6 Qg2 Qd3 Qgf2 Ng6 Bb6 Nh8 Kb7 Qdg6 Nc7+ Kd7 e8B+ Ke7 Nb5 Kf8+ Bc7 Nd3 Kb6 Rb1 Bb8 Nb2 Qee2 Bg7 Qfe1 Rf1 Q2f2+ Bf6 Nc7 Nc4+
nn1bK2B/P2Q1r2/4p1bp/2rr4/1NP1q3/BBpbq1P1/Q1P1kbR1/3R4 w - - 0 1 illegal: No proof kernel
7B/1Kn1P3/pq3Q1b/2bp1q1R/Q1rr1pk1/nR1r2N1/P1qr1PNP/4Q3 w - - 0 2 legal: proof: c4 e5 d4 exd4 c5 f5 c6 h5 Kd2 bxc6 Ke1 c5 g4 c4 Bh3 f4 Qd3 Bb7 Qd2 Be4 Qd1 Bf5 gxf5 Rh6 Bg4 hxg4 Nc3 Rh5 Nb1 Rh8 Kd2 Kf7 e4 Kf6 b4 Kg5 e5 c5 e6 d5 e7 d3 Kc3 g3 f6 d2 b5 a6 f7 g2 b6 Nf6 b7 Rh3+ Nf3+ Kg4 Qe1 g1R Na3 d1R Rb1 g5 Ra1 Rd4 Qf1 Qb6 Nb1 Bh6 f8Q Ne8 Qh8 Nc6 b8Q Nc7 Qf6 Ne5 Qg8 Rc8 Qe2 Rgd1 Kc2 c3 Bb2 c4 Ne1+ Rf3 Ng2 R1d2+ Kc1 c2 Qe1 Rfd3 Qe8 Nf7 Qb5 Nd6 Qa4 Ndb5 Nc3 Na3 Ne2 Kh3 Rf1 g4 Bc3 g3 Rb1 Kg4 Rb5 Qd6 Kb2 Qb6 Rb3 c1B+ Ka1 Rd1 Bb2 c3 Rg1 c2 Bc3 Be3+ Kb2 Re4 Bd4 R3d2 Be5 Bc5 Kc3 Rb4 Qf7 Rbd4 Bh8 Qe6 Qf6 Qf5 Rb7 c1Q+ Kb3 Bb6 Rb8 R4d3+ Kb4 Bc5+ Ka5 Qc2 Rb3 Rd4 Nh4 g2 Ng3 Bb4+ Kb6 Bc5+ Kb7 R2d3 Rh1 g1Q Ng2 Qf1 Rg1 R1d2 Qb1 Qe2 Re1 Qee6 Re5 Qd6 Qe1 Bb6 Re3 Ne6 Ne2 Rcc4 Rh3 Nc7 Ng3 Bc5 Rh5 Qb6+
br6/3PqKR1/1b1P4/pr1pPbB1/N3b1n1/RB1Pp1Qn/1B3qQ1/1k5n w - - 0 1 illegal: Other
Q4b2/4P1pQ/1k1qr1Pb/1pn1n3/bN1P3B/RPn4p/1r2b2K/q1B2RB1 w - - 1 2 illegal: No proof kernel
QbKn2RB/4r1p1/1Pbr1p1q/rBQ4p/P5qr/N2n3N/3kbP1P/4N3 w - - 0 2 illegal: No proof kernel
q1q4R/2pb2q1/2Qbn1k1/3rR2r/1QP2Pp1/2NNP2r/p3rB1P/2K2Nn1 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Bg2 exd4 Bh6 f5 Be3 f4 Bd2 f3 Bc1 fxg2 Kd2 Kf7 b4 a5 f4 d5 c4 g5 b6 a4 b5 a3 e3 d3 b7 a2 b6 g3 Qf3 d4 Ne2 g1Q Bb2 g2 Qg3 Bd6 Qf3 Rh5 Qg4 Nc6 b8Q Nge7 b7 Ng6 Qa7 Nh4 b8N Kg6 Na6 Bd7 Ng3 Qc8 Nf1 Nf3+ Kc1 Nd8 Qb8 Ne6 Nb4 d2+ Kc2 d1R Bc3 Rd3 Be1 Rd2+ Kc1 d3 Bf2 Re2 Nc3 Rh3 Qb5 Ra5 Rb1 Qa8 Qc6 Qc8 Qg3 d2+ Kc2 g4 Nd3 Rah5 Rb8 d1R+ Nd2 Qb7 Rh8 Qc8 Qh4 Qe1 Qe7 g1Q Kb2 Qg2 Qf8 Be5 Qb4 Bd6 Rg1 Qh1 Rg3 Ng1 Re8 Nd4 Re5 Qd5 Rf3 Qdg8 Rg3 Qg7 Rf3 Qf1 Rg3 Qg2 Rf3 Nc2 Nf1 Rdd2 Kc1 Nd4 Rg3 Qe4 Qcb6 Qea8 Qc6 R3h4 Rh3 Ne6 Nb2 Rd5 Nd3 Rf5 Qbc5 Rh8 Rh7 Rh5 Qb4 Rh3 Rh4 Rf8 Rhh5 Rf5 Rh8 Rfh5
3b2q1/2P3nk/1p1n2n1/1R1R1Pr1/pQ2Q1P1/1Prp2q1/B1N1n2N/3Kb1Nb w - - 0 1 illegal: No proof kernel
2Kn3B/1P3b1P/1Qpq3r/p1Q3B1/6Bb/3n4/PR1rP1Np/R2qrkbr w - - 0 1 illegal: No proof kernel
1q1RQ2K/1k3P2/2p2pQb/1q2BrpP/n4RbQ/r4PnB/2P5/r3bNr1 w - - 1 2 legal: proof: e4 a5 g4 h5 b4 axb4 g5 d5 g6 dxe4 Na3 f6 Nc4 Qd5 Ne5 Qf7 Ng4 hxg4 gxf7+ Kd7 Ke2 Kc6 Ke3 b5 Kf4 e5+ Kg3 e3 a4 e4 Kf4 b3 d4 b2 h4 b1Q d5+ Kb7 d6 b4 d7 g3 Kf5 g2 Kg6 c6 d8Q e2 a5 e1R f3 b3 Q8d4 e3 Q1d3 b2 Ne2 g1R+ Ng3 e2 Bf4 Na6 Be5 Nc5 Bh3 Nh6 Ra4 Bg4 Nf1 Nf5 h5 Ng3 Qf5 Rg8 Kh7 g5 Qfd3 Bh6 Qg6 Rgd8 Rh2 Rd5 a6+ Kc8 a7 Kb7 Rc4 Na4 Qf2 Rc1 Rf4 e1B Qd4 Rc5 Rd2 Rd1 Qc4 Ra5 Rd6 Rd3 Rd8 Ra3 Kh8 Ra1 Bd6 Rf5 Qd4 Qd1 Qf2 b1Q Be5 Qb5 Qh2 Qd6 Qf2 Ne4 Qh4 Ng3 Bc3 Rc8 Be5 Qb8 a8Q+ Kb6 Qa5+ Kb7 Qb4 Rc7 Qf8 Rd7 Qfg8 Rd3 Qe8 Rda3
k3r1N1/1p1b2Qr/q4B2/1rpQ1b2/PRR3nP/qPbQ1P1N/1n2p1b1/K7 w - - 0 1 illegal: No possible last move
5B2/2q1Bb2/2b2p1b/r1QpNb1B/1PRKQP1n/Pk1pn3/3P1R2/2bb3r w - - 1 2 legal: proof: b4 a5 h4 e5 h5 a4 Nc3 g6 Nb5 gxh5 Nd4 exd4 c4 b5 cxb5 h4 Qb3 axb3 g4 Ke7 e4 Kd6 Ke2 c5 Kd3 h5 f4 c4+ Ke2 d3+ Ke3 h3 b6 b2 a3 b1B e5+ Kd5 e6 h4 b7 c3 e7 Kc4 e8Q f6 g5 c2 g6 h2 g7 h3 Qh5 Qc7 Qe2 Na6 b8B Nh6 Qf2 Kb3 Be2 Ba2 Bb2 c1B Bh5 Nf5+ Ke4 d6 Bd4 Nh4 Bc5 Bf5+ Kd4 Rh7 Nf3 Rh6 Rd1 h1B Re1 h2 Ne5 Bc6 Re2 h1B g8Q+ Bhd5 Qg7 Bf3 Qe7 Rh8 Qg2 Bh6 Rf2 Bd1 Qf8 Kc2 Qf3 Bf7 Qe4 Kb3 Qc8 d5 Bd6 Nc5 Be7 Nd7 Ba7 Rh7 Bac5 Nb6 Bf8 Nc4 Bce7 Ra5 Ra2 Ba4 Rc2 Ne3 Rc4 Bb5 Qa6 Bc6 Qb5 Rg7 Qb6 Rg1 Qc5 Rh1
4b1n1/3RN1p1/1bQ2qP1/p1P1Qbbr/N6n/2pn1P1B/1nP1B1r1/1K3N1k w - - 0 2 illegal: No proof kernel
B5K1/2PQ1np1/3Q2bn/b5rk/P2NqRp1/bbP3P1/n2BQ2p/1rRn4 w - - 0 1 illegal: No proof kernel
1k1n2b1/n2pQ2r/1BPP4/5q2/1R2r3/PpPK1BNp/1Rnr1rnR/6bQ w - - 0 1 legal: proof: f4 a5 h4 c5 b4 e5 bxc5 exf4 Nc3 g5 Nd5 gxh4 Nb4 axb4 e4 b5 Ke2 f5 g4 h5 d4 h3 d5 h4 c6 b3 e5 b2 e6 b1N g5 h2 g6 b4 g7 h3 e7 b3 Bd2 f3+ Ke3 f4+ Kd4 f2 Qf3 Na3 Bd3 f1R Bb4 Bb7 Rd1 Nh6 g8Q Nf7 Qh5 f3 Be4 f2 Kd3 Ra4 Bg6 Rh7 Ke2 Qa5 Bc5 Re4+ Kd3 Rfe1 Rd2 f1N Qf3 Ne3 Qf4 Ng2 Qh4 R1e2 Bb6 Ba8 Bf5 Nd8 Bg4 Qc5 Qgg5 Qf2 Qg8 Qf5 Bf3 Rf2 Qgg4 Bh6 Qg7 Be3 Ne2 Bc5 Rb1 h1R Rb2 Re1 Ng3 R1e2 Qgf6 Na6 Qhg5 Nb5 a3 Na7 Qe5 Bb7 d6 Nb4+ Kc3 Ba6 Qd5 Bc4 Rd4 Re6 Rg4 Be3 Qd1 Re5 Qh1 Bg8 Rf4 Re4 Qf6 Nd5+ Kd3 Bd4 c3 Nde3 Rh4 Nc2 Rg4 Rf1 Rh4 Bg1 Qg5 Rff2 Rg4 Kf7 e8R Re7+ Ne4 Rd2+ Kc4 Rf1 Nc5 Nh4 Ba5 Nb7 Rg2 Rde2 Rb8 Rff2 Rh2 Ng2 Bd8 R7e6 Ne4 Ke8 Nd2 R6e4+ Kd3 Na5 Rb5 Nb7 Bb6 Rh5 Bc5 Rh7 Qg7 Kd8 Rb4 Kc8 Qe7 Nd8 Bb6 Kb8 Nf1 Qa5 Ng3 Qc5 Nf1 Qf5 Ng3 Rd2#
2Nb2rk/P1R1B1R1/2pb1p1n/KQ2PQ2/r4p1q/3Q1r1B/1P3P2/r1n1b2b w - - 0 1 illegal: No possible last move, all moves rejected
1kr5/N4PnQ/bB2PPRp/2Br3r/1pbp2b1/r3n3/1PqK1b1N/1Q3B2 w - - 0 1 illegal: No proof kernel
R2Q1rBK/4bBpq/Qp1p3k/qPnP2q1/qnRP4/1q4P1/4r1r1/1QN5 w - - 2 3 legal: proof: d4 a5 b4 e5 f4 exf4 b5 b6 Bd2 Bb7 Bb4 axb4 g3 h5 Nc3 h4 Nd5 h3 Ne3 Be4 Ng2 Bd3 cxd3 hxg2 Kf2 c5 Kf3 f5 e4 Kf7 a4 Kg6 h4 b3 h5+ Kh6 d5 d6 e5 b2 a5 b1Q e6 c4 d4 c3 a6 c2 a7 c1Q e7 Qb3+ Qd3 Qcc3 e8B Nd7 Bf7 Ne7 Ra4 Nc6 Bg8 Nb4 Ne2 g1R Bh3 Nc5 Nc1 Rg2 Ra5 Rb8 a8Q Qg5 Qa6 Be7 Bg4 Qa1 Bf7 Qba4 Qb1 Rhe8 Rd1 Ra8 Rd2 Rf8 Rc2 Rae8 Rc4 Qb2 Qb7 Qba2 Ra8 Qa5 Qa7 Q2a4 Qa6 Rg1 Ke2 f3+ Kf2 f4 Bge6 Qb3 Bg8 Qba4 Bef7 Rg2+ Kf1 f2 Ke2 Nb7 Kf3 f1Q+ Ke4 f3 Na2 f2 Nc1 Qh4+ Kf5 Qd3+ Ke6 Qdb3 Kf5 f1Q+ Ke6 Kg5 h6 Qff3 h7 Qfh5 h8Q Qh7 Bh5 Rf5 Bg6 Re5+ Kf7 Nc5 Bh5 Kh6 Bg6 Rc8 Bh5 Bd8 Kf8 Qf6+ Bhf7 Qg5 Be8 Na2 Be6 Qg4 Kf7 Be7 Qf8 Qhd3 Kg8 Qg5 Kh8 Nb4 Bg8 Ree2 Bef7 Rb8 Qfc8 Qdg6 Qd7 Rf8 Qd8 Qh7+
1bB1k3/4pqp1/N1b5/1q1Qn2P/q1n3Rp/1bP1P2P/bb3K2/1Q2rNNR w - - 0 1 illegal: Other
1Rq1k1r1/1q1p4/p6Q/P4p2/1B1P4/Nb2Pr1r/QK1BRPnR/b4rbr w - - 0 3 illegal: No possible last move
K4BQ1/rp1pb3/1Pr3N1/1brPq2k/b2Q3q/3pn1PN/qQBR2P1/r7 w - - 0 1 illegal: Other
1n3q1n/b4k2/r3nn2/N1P3pp/P2n1p1P/3rRPQ1/1N3nBK/N2Qr1R1 w - - 0 1 legal: proof: d4 e5 b4 c5 b5 cxd4 b6 e4 Nh3 e3 Ng1 axb6 Na3 b5 Nb1 b4 Bd2 f5 g4 b6 Bh3 exd2+ Kf1 f4 Kg2 Ba6 Qf1 Bd3 Qd1 Bf5 gxf5 Ra5 Kf3 Re5 Bf1 Ra5 Kg2 Ra8 h4 g5 e4 h5 a4 d5 c4 b5 e5 b3 f6 d3 e6 b2 e7 b4 f3 b3 Qe1 d1R Qa5 d4 Qa6 d2 Qa7 d3 Ne2 Kf7 e8N+ Ne7 Qb7 Ra6 Rg1 Re1 Qc7 d1N Kh3 d2 Nc1 Ne3 Qc8 d1N Qc5 Ng4 Nd2 b1N Qf2 b2 Nd3 Na3 Qg3 b1N Nb2 Nb5 Bg2 Nd4 Nb3 Ng6 Ra3 Nbc3 Na1 Nce2 Re3 Ne6 c5 N2d4 Re4 Bd6 Re3 Ngf2+ Kh2 Nc3 Nd3 Nd5 Nb2 Kf8 f7 Nf6 Nc4 Bc7 Na5 Bb6 Nd6 Ba7 Ndc4 Rh7 Nb2 Nh8 Re4 Kg7 f8Q+ Kg6 Qh6+ Kf7 Re3 Qf8 Qg7+ Ke8 Qb7 Rd7 Qd5 Kf7 Qb3 Nf5 Qc2 Rd3 Qd1 Nfd4
3r4/k2rQ1n1/r2Nnn1p/1R1b3r/N1r1QpRP/4PPp1/1qBP3K/1r5R w - - 0 1 illegal: No possible last move
2n4r/2Q3K1/NnP1r2p/2p2b1R/qRP1rRrP/1p1Pn1B1/3Q4/n4nNk w - - 0 1 illegal: No extended proof kernel
bn1Q1KB1/pR1b4/bN1b1p2/b2P4/Pqq4b/2Br2p1/P1Q3PN/2Q2nk1 w - - 0 1 illegal: No possible last move, all moves rejected
2bb2kb/3BqrPN/1Kp2Q2/2B5/5QR1/1p1Pp2R/bPP2qQ1/nb3r1b w - - 0 1 illegal: No possible last move
3QNk2/p4p1Q/1q4qq/P1nNn1pr/2RKP2R/2bn1b1n/6PP/2q3BN w - - 0 1 illegal: No proof kernel
r4n2/2rpBk2/P1b1rN2/1p2bKP1/3P4/1PnQN3/p1Q1q1p1/1nBbQ2R w - - 1 2 illegal: No proof kernel
1r1q1b2/k1r3n1/P1BN1R2/1p1bq1B1/bR3Pp1/3pq1PP/4R1p1/K1QQn3 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g3 f5 exf5 a5 Na3 axb4 Nc4 h4 Ne3 h3 Ng2 hxg2 Kd2 e5 f4 d5 a4 Kd7 c4 Kc7 Kc2 Kb6 Kb2 g5 h3 b3 a5+ Ka7 a6 b5 c5 e4 f6 d3 c6 e3 f7 d2 c7 e2 Kb1 e1Q Ne2 d4 Ra3 d3 Rg1 b2 Rc3 g4 Rc4 Ne7 Nd4 Qe5 Be2 Be6 c8Q Bd5 Rb4 Nd7 Bf3 Nf5 Re1 Ng7 Re2 Rh7 Nf5 Rb8 Nd6 Qe3 Qc4 Ne5 Ka2 b1B+ Ka1 Bc2 Ba3 Ba4 Be4 Nf3 Qcc1 Ne1 Bb2 Qe7 Bf6 Qd7 Bg5 Qd8 Qdc2 d1Q Bf3 Be6 Bc6 Bd5 Qd2 Qc2 Qcd1 Qcc5 Q2c1 Be7 f8R Qcd4+ Qc3 Qde5 Rf6 Bf8 Qb2 Nf5 Qc3 Rc7 Qb2 Ng7 Qc3 Qee8 Qcc1 Q8e5+
1br1K2N/2BP2B1/1b2nP2/q1R4Q/n1b5/1rkrP1p1/pN2pQPp/1B1q4 w - - 0 1 illegal: No proof kernel
6QQ/2p2nr1/3p1KPn/N2Pp2b/4B2N/N1Pb1R1n/qp2P2R/k1qr3b w - - 1 3 legal: proof: b4 f5 g4 fxg4 f3 a5 Ba3 axb4 Bb2 g3 Bd4 Ra5 Bf2 Ra8 Qc1 gxf2+ Kd1 Nh6 Na3 Ra7 Qb1 Nc6 Kc1 Ra8 Kb2 Nf7 Qd1 Nh6 Nb1 Nb8 Kc1 Ng8 h3 Nh6 h4 Ng8 Nc3 g5 Nb1 g4 Qe1 Bh6 Qd1 Bg5 hxg5 Kf8 Nc3 Kf7 Nb1 Ke8 Kb2 Kf7 d4 Ke6 a4 Kd5 f4 Kc4 a5 h5 a6 e5 f5 b5 g6 h4 c3 d6 a7 b3 d5 h3 f6 h2 f7 g3 f8Q b4 Nf3 g2 Qf7 g1N Qc2 Nh3 Ng1 Rh7 Qg7 Bg4 Qh8 Rg7 Bg2 f1Q Be4 Nh6 Nf3 Bh5 Nh4 Nc6 Qg8 Qd7 Qd2 Nd8 Qc1 Rb8 a8N Qa4 Qd1 Ndf7 Na3+ Kc5 Kb1 b2 Nb6 Qf4 Rf1 h1B Nbc4 Qg5 Rf3 Qc1+ Ka2 Qa8 Kb3 b1B Na5 Bd3 Qd2 Rb6 Qg5 Qa6 Qf6 Qc4+ Ka4 Qa2 Qfd8 b3 Qf6 Rh7 Qfh8 Rg7 Rb1 b2 Ra1 Ra6 Rb1 Qg5 Rg1 Qc1 Rg2 Ra7 Rh2 Rb7 Nc6 Rb4+ Ka5 Rc4 Ka6 Rd4+ Kb7 Qd2 Kc8 Qc1 Nc4 Kb5 Kd7 Ka4 Ke6 Kb3 Kf6 Kc2 N6a5 Kb1 Na3+ Ka1 Ke7 Bb5 Ke6 Rd1 Kf6 Bd3
1n4nN/1n2b2b/2kpr2B/4PB2/2q1b2R/rppPP1K1/BP1Qp2R/1qQ5 w - - 1 2 illegal: No proof kernel
5B2/2rQKbn1/pP1Bp2R/P1q3np/1kq5/N3NP2/Q2b1p1P/rq3Br1 w - - 0 2 legal: proof: e4 d5 g4 dxe4 c4 f5 gxf5 b5 Qc2 bxc4 Qa4+ Bd7 Qd1 Bc8 a4 e3 b4 Qd5 f3 Bb7 Ke2 Qd8 Ra3 Nf6 Rd3 Ba6 Rd5 Bb7 Re5 Ng8 Re6 Ba6 Rg6 Bb7 Rg2 Bc8 Rf2 exf2 Ke3 Kd7 Ke4 Kd6 d4 c5 f6 h5 b5 g5 b6 g4 d5 g3 f7 g2 Bd3 c3 Kf4 c4 Kg5 Kc5 d6 c2 d7 c3 Na3 Nc6 Be3+ Nd4 Bh7 c1Q Nb5 c2 Qf1 Kb4 Ne2 g1R+ Ng3 Qb1 Bf4 c1Q Bd3 Nf5 Na3 Qc5 Bd6 Ngh6 Qe2 Qc7 d8Q Rh7 Qa2 Be6 Qd7 Bd5 Bf1 Ng7 Bg2 Qc6 Nf5 Qb5 Ne3 Qc4 Qd8 e6 Kf6 Bc6 Bf1 Be8 Bf4 Bd6 f8B Nf7 Qd7 Ng5 Be5 Bc7 Bed6 Bf7 Ke7 a6 a5 Rd8 Kf6 Bb8 Bde7 Bf4 Bd6 Rc8 Ke7 Rc7 Bd3 Rc1 Rg1 Rh6 Bf1 Rg6 Nd1 Bd2 Ne3 Qb2 Rg4 Ra1 Rf4 Qb1 Rf5 Nh3 Rf6 Rg1 Rh6 Ng5
2r1bKB1/2P1Bn1P/2RN2r1/3RQ1pp/P1q4P/6rk/1p3Qrp/bnB4r w - - 0 1 illegal: No proof kernel
b3R2B/1PR1bqQ1/rk1nBp1p/2p5/n2p1K2/1bPP1PBQ/5b2/b3r1N1 w - - 1 3 legal: proof: e4 d5 h4 g5 a4 gxh4 e5 b5 axb5 d4 e6 Bxe6 Na3 Bd7 Nc4 Bc8 Nb6 Bd7 Nc8 Bxc8 Ke2 Kd7 Kf3 e5 g4 a5 b4 c5 c3 Kc7 g5 f6 d3 a4 g6 h3 g7 a3 Qb3 e4+ Kg3 a2 Qd5 e3 Qe6 e2 Kf3 e1B Bh6 h2 Kf4 Ne7 g8Q Ra6 Qh3 Qd7 Qg7 Nf5 b6+ Kc6 b7 Qf7 b5+ Kb6 Rd1 Nd7 b8B a1B Rd2 Bb7 Re2 Nd6 Re8 Ba8 Be2 Be7 Bg4 Bd5 Be6 Bb3 Bc7+ Kb7 Bb8 Nb6 Bc7 Na4 b6 Kc6 Bb8 Kb5 Bc7 Bd5 Bb8 Ba8 b7 Kb6 Qg6 Rf8 Bg7 h6 Bh8 Rg8 Qg7 Rf8 Rc8 Re8 Rc7 Kb5 Nf3 Kb6 Rf1 h1B Ng1 Bd5 f3 Bf2 Re1 Bb3 Re3 Bf8 Bd5 Rd8 Re8 Rd7 Be6 Re7 Bg4 Re1 Be6 Be7 Rd7 Rb1 Kg4 Ne4 Bg3 Nd6 Kf4 Rf1 Rc7 Re1
r1r3kn/6p1/4NbnB/1Pp1Npr1/5P2/2PQ1bRr/2P1p1Rq/1R2nQK1 w - - 0 2 illegal: No possible last move
1rNQ2bN/1np2p2/pq2PP1n/4NPp1/4K1R1/1b4rP/3b1Bq1/2kBQ1b1 w - - 0 1 illegal: No proof kernel
k2b1b2/4p2p/3rQ1PK/PNNqPB2/5P1n/1b2QQnq/1pb1p3/2r1BR2 w - - 0 1 illegal: No possible last move
2rnqn1K/2n3p1/1Q1rp1Pr/QP3N1p/8/Pq1b3k/N1RpP2B/2qB2Q1 w - - 0 1 illegal: No possible last move, all moves rejected
k1KQ2Bn/p3pQ1n/p1NrRrRb/2n1r3/q3P2P/nN1p3R/2PP4/7q w - - 0 1 legal: proof: b4 h5 a4 c5 g4 hxg4 a5 Qc7 a6 bxa6 b5 Qd8 Ba3 Qa5 Bb4 Qd8 f3 cxb4 Qc1 g5 Qd1 g3 Bh3 g4 Ra4 Bb7 Bf1 g2 Ra2 g3 Ra1 Bd5 Nc3 Be6 Nb1 Bg4 fxg4 Bh6 Ra5 Bg7 Ra1 Bf8 e4 d5 Ke2 Kd7 Ke3 Kc7 Kf4 Kb7 Kf5 b3 h4 b2 b6 d4 g5 d3 g6 Nf6 g7 Qd7+ Ke5 Nh7 g8R f5 Rg6 f4 Qc1 f3 Rh3 f2 Re6 Qa4 Nc3 b1N Nce2 Na3 Nf3 g1Q Ned4 g2 Nb3 Qh1 Nfd4 g1N Nc6 Bh6 Be2 f1R Bh5 Rf2 Bf7 Rf6 Bg8 Ne2 Qf1 Nf4 Rb1 Ng6+ Kd5 Rf8 Qf7 Nd7 Rg1 Nc5 Rg4 Nf4+ Ke5 Rad8 Rg7 Rd6 Rgg6 Kc8 b7+ Kc7 Qf5 Rf6 b8Q+ Kd7 Qa8 Kc7 Qd8+ Kb7 Bf7 Re8 Bg8 Ref8 Qa5 Rc8 Qc7+ Ka8 Qd8 Rf8 Qf7 Rb8 Rg4 Ng6+ Kf5 Nh8 Rgg6 Rc8 Nb4 Qb1 Re5 Qe1 Qf6 Rb8 Nc6 Rf7 Rd5 Nb7 Re5 Rd5 Ke6 Qh1 Qg7 Rf3 Qf7 Rc5 Kd7 Rf6 Re6 Re5 Kc7 Nc5 Ncd4 Rf1 Qd5+ Rb7+ Kc8 Rf6 Qd8 Rd7 Nc6 Rd6
R1n2Q2/1pqNQ3/2n2p2/1P6/1NB1PP1p/N1Brqk1K/rq2pPq1/2b3r1 w - - 0 1 illegal: No proof kernel
1bq1N1Q1/4p3/1qB3q1/pnnrq1Bp/kPKpb1QP/3BP2b/4R2P/6R1 w - - 0 1 legal: proof: a4 a5 d4 c5 e3 cxd4 g3 f5 Qf3 f4 Qg4 f3 Kd2 b5 Nc3 bxa4 Nce2 Ra6 Bh3 Rh6 Bf1 Rh4 gxh4 fxe2 Qf5 Qb6 Qd3 Qb3 Ke1 Qb6 Qd1 Qc7 Kd2 Qd8 Kd3 e1Q b4 h5 c4 d5 f4 Kd7 f5 Kc6 c5 Kb5 f6 g5 c6 a3 f7 g4 c7 a2 Bg2 g3 Rb1 a1Q Bd2 Nc6 Rc1 Nf6 Be4 g2 Bf5 Nd7 Qc2 Bg7 f8Q Na7 Qa2 Be5 Ne2 g1Q Qg8 Qg6 Qc4+ Ka4 Rg1 Nb5 Rc2 Qec1 Ng3 Qab2 Bc3 Nc5+ Ke2 Qba1 Bd3 Bh3 c8B Bb8 Nf5 Qdb6 Bd7 Rh6 Nd6 Rh8 Qf7 Rd8 Bc6 Rd7 Ne8 Qab2 Be4 Rd8 Qg8 d3+ Kf3 d2 Ke2 Qba1 Bf6 Qe5 Bd3 d4 Qce6 Rd6 Qg4 Rd5 Bg5 d1B+ Kf2 Qb2 Re2 Qc2 Ke1 Qc4 Kd2 Bc2 Be4 Qd8 Bb7 Na6 Bf5 Qcc7 Bc6 Qb6 Be4 Qc8 Bf5 Bb3 Kd3 Bc2+ Kc4 Nc5 Bh6 Be4 Bg5 Bh1 Bd3 Be4
nNk1bq2/4b1RR/qpnK1p2/8/pPN1PR2/5bPq/2bpQP2/Q4r1B w - - 0 1 illegal: No possible last move, all moves rejected
r3r2n/3RnNb1/2kb2Rr/2pp2pQ/pP4pQ/b1PPB1P1/q7/2N3KR w - - 0 3 legal: proof: e4 f5 a4 fxe4 a5 e5 a6 e3 f3 e2 Kf2 bxa6 Kg3 a5 Kf2 a4 g3 h5 Bh3 e4 Bf5 e3+ Kg2 Bb7 Bg4 Be4 fxe4 hxg4 b4 e1B h4 c5 e5 a5 d3 d5 h5 Kd7 h6 g5 h7 e2 e6+ Kc6 e7 a3 e8Q+ Nd7 Nf3 a2 Be3 Bc3 Kg1 Ne7 Nbd2 Bb2 Nb3 Ba3 Qh5 Ne5 Nc1 N5g6 Qf1 Qd7 Qfh3 Qa7 Qh2 Bg7 Q2h4 Rhe8 h8R e1R+ Kh2 Bf8 Rh7 Nh8 Kg2 Re2+ Kg1 Rh2 Ne5+ Kd6 Nc4+ Kc6 Nd6 Qa6 Rg7 a4 Rg6 Qc4 Rb1 a1B Nf7+ Bf6 c3 Qa2 Rb2 Bg7 Rf2 Bf8 Rg8 Be5 Rg6+ Bd6 Rff6 Rf2 Re6 Rf6 Rg7 Rh6 Rgg6 Nc8 Re7 Bg7 Rd7 Ne7
3bbn2/3qpr2/Q2B2BR/pnP1Q1B1/P1R5/Npp1p1P1/K6P/1rk1bn2 w - - 0 1 illegal: No possible last move, all moves rejected
Nkqn1b2/pp3pp1/P1b1pP2/r3R3/1nQ4Q/3Nrq1r/1K1PP3/2Q1R1B1 w - - 2 3 legal: proof: c4 d5 g4 h5 b4 hxg4 Bh3 c5 Bg2 cxb4 Bxd5 b3 c5 Qd6 Be4 Qd8 Bh7 Nh6 Bg8 Nxg8 f4 Kd7 a4 Kc7 h4 e6 h5 g3 a5 b2 c6 g2 f5 Rh6 f6 Qd4 a6 Qe3 Nh3 Qe5 Na3 b1Q Nf4 Qb4 Nb5+ Kd8 Ba3 Qd5 Nd3 Qbc4 Nc7 Ne7 Bc5 Qf3 Ra5 Bd7 Qc1 Kc8 Kd1 Nd5 Bg1 Nb4 Re5 Rg6 h6 Rg5 h7 Qc3 Re4 Ra5 h8Q Qc5 Qc4 Be8 Kc1 Bd7 Be3 g1R+ Kb2 Rg3 Qh4 Rh3 Re5 Rg3 Nd5 Rh3 c7 N8c6 Qc1 Nd8 Re1 Bc6 Bg1 Qh1 Nc3 Re3 Na4 Qf3 Qcc4 Kd7 c8Q+ Kd6 Qb8+ Kd7 Qd6+ Kc8 Qdd5 Kc7 Qc1 Rc8 Qdc4 Kb8 Nb6 Rc7 Na8 Rd7 Kc3 Rd5 Re4 Rh5 Re5 Rh6 Kb2 Rh8 Qhg4 Rh3 Qh4 Bd5 Qh8 Qc8 Qhh4 Bc6
5qNb/qkPrPrp1/p3Qr1p/pnK1b2n/5QP1/B1NR2pP/1R5N/8 w - - 0 2 illegal: Other
5q2/N2Kp2N/1B5p/Pp2P2r/q1p4n/1Nnbb2R/kP1PbQ1p/2rR3Q w - - 1 2 illegal: No proof kernel forced: bxDB
qrK4k/pp1r3P/4Rnq1/1P2B2b/RRp4p/1PP1b2N/prQ4r/6NQ w - - 0 1 illegal: No possible last move
1rRK1N2/NQ3Bpp/7P/p2QPb1r/2pnp1N1/q3P1b1/1Pnk1B1p/5r2 w - - 1 2 illegal: No proof kernel
4B1B1/2p2p2/1Q1Q1qRb/1PRqr1P1/2b3Np/np1p4/r2PQ1pP/2n1K1k1 w - - 1 2 illegal: No proof kernel
bq1K1Bn1/3Pp1P1/B1ppRbp1/1r1pQ1N1/Q1q5/4PQ2/1RPnp3/2kr4 w - - 0 2 illegal: No proof kernel
5nNr/p2p3R/1P1b2k1/1np1pN2/1bp1rq1K/1pPP4/Q1PQqB2/3B2N1 w - - 0 2 illegal: Other
7K/pp1knp2/1rrq2B1/2P3R1/Qn2b2P/1P2bNpp/Q1p1P1pB/3N2N1 w - - 0 1 illegal: No proof kernel
5R1r/1pq3bK/br1pp1r1/4P2N/4nn2/1P1qQQP1/q2PRrR1/kBn1N3 w - - 0 1 illegal: No proof kernel
1b2rK2/2Q1p1n1/BR3p1r/qP2Pknr/3p1B1R/4QP2/r1nP2NQ/n3q2b w - - 0 1 illegal: No possible last move, all moves rejected
2rn1Bnk/6qp/rB3p1b/NN1nq2P/Q7/b1Rp1Pp1/K2P2P1/B1b2b1Q w - - 3 4 illegal: Other
b1Rr1b2/2pp2pR/1nPPkB1n/N1nrb1nK/4R2P/2b3P1/1QB2p2/6Qq w - - 0 1 legal: proof: f4 h5 a4 b5 f5 bxa4 f6 h4 Nc3 exf6 g3 f5 Nd5 h3 Ne3 f4 Ng2 hxg2 Kf2 Ke7 Kf3 a5 Kg4 a3 e4 f3 c4 f2 b4 a4 d4 a2 d5 a3 b5 Rh5 c5 Bb7 e5 Na6 d6+ Ke6 c6 Nc5 Ne2 g1N b6 Nf3 Bb2 Ng5 Nc1 f6 Bh3 f1N Nb3 Nd2 Qg1 Nc4 Re1 a1B Re4 a2 Na5 Qb8 Bd4 Bc3 Bf1 a1B Bd3 Qa7 Bc2 Rd8 h3 Ba8 b7 Nb6 b8Q Qa6 Rh2 Qf1 Qb7 Kd5 e6 Qe1 e7 f5+ Kf4 Qd1 e8R Nh6 Bf6 Bab2 Qf2 Qh1 Qg1 Be7 Rh8 Bf8 Rh7 Ba1 h4 Bab2 Rhe2 Ba1 Re8 Bab2 R2e4 Be5+ Ke3 f4+ Ke2 f3+ Kf2 Rb8 Rc8 Bec3 Ke3 f2 Kf4 Ba1 Ra4 Ke6 Rc4 Nba4 Qb2 Nb6 Rd4 Ngf7 Rb4 Rd5 Ra4 Ng5 Rb4 Ng8 Kg4 Nh6+ Kh5 Be5 Rg4 Bc3 Re4+ Be5 Qa3 Bc3 Qb2 Be7 Rf8 Rc8 Rf7 Rg8 Rf8 Rh8 Rb8 Rd8 Rc8 Bf8
rB1b2K1/p2r1B2/k2Pr2n/1pQ4b/rpN1rp2/3Rp3/P1RnPP2/B1q1Q3 w - - 0 1 legal: proof: c4 d5 g4 h5 b4 c5 Na3 cxb4 c5 hxg4 Nc4 dxc4 d4 Kd7 Kd2 Kc7 Ke3 g5 Ke4 f5+ Ke5 c3 h4 c2 h5 g3 h6 f4 d5 g2 h7 g4 c6 Kb6 d6 g3 c7 Nd7+ Ke6 Ne5+ Kd5 Nc4 Nh3 g1R Bb2 c1R Qe1 g2 Bc3 Bg4 c8Q Nd2 Ng5 Nh6 Nf3 Qc7 Ne5 Bh5 Ke6 Ka6 Rh3 Rb1 Bd4 Qc1 Qc5 b5 Rf3 Rb3 Nc4 Ra3 Rd3 Ra4 Bf6 Rg8 h8B Bg7 Rb1 Rge8 Rb2 Rh1 Bh4 g1R Rc2 Bf6 Bh3 Rg6 Bf5 Rg7 Bg6 Rg1 Bf7 R1g6 Kd7 e5 Bg5 Reg8 Ke6 e4 Bh4 Bd8+ Bf6 Rg1 Bh4 Rh7 Ba1 e3 Be7 Re8 Kf6 Ba5 Bd8 Re4 Bc7 Rg5 Bb8 Rge5 Bg6 Rd7 Bf7 Re6+ Kg7 Bd8 Kh7 Nf5 Kg8 Nh6+
b1RbqB2/N2r2bp/2p1Q3/r2B2BQ/p1rpP1nP/K3R1r1/P1P2p2/n5k1 w - - 0 1 illegal: No proof kernel
1Qnq1n1N/1K1bP1R1/1r1N1R2/2pr2Qp/5pn1/ppP2P1B/Pnkb1q2/3N4 w - - 0 1 illegal: No proof kernel
1b3nbn/1Q2PNpp/1QnpKNrB/6r1/7p/p3R2B/k1rP1pPP/1N4q1 w - - 0 1 illegal: No proof kernel
2K1k1rQ/1bp1rbnp/p2P2QP/1R2b3/P3B2B/n3p3/2Pp3p/qR1NB2b w - - 0 1 illegal: No proof kernel
4RrN1/3bnP1B/2P3rP/nn1r2q1/2K2B1B/3nNP1R/n6r/1kb1N2r w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 f5 exf5 b5 a4 c5 Qd2 cxd4 axb5 Nf6 b6 Ng8 b5 Rh5 Qc3 Rh8 Qb4 axb4 Ke2 Kf7 Kd3 Kf6 h4 Ke5 c4 g5 b7 d5 f6 g3 h5 g4 b6 b3 f7 g2 c5 g3 f3 b2 Nd2 b1N Nh3 g1R Ra2 g2 Ra5 Nc3 Nb1 Bh6 Ra4 Bd7 Ra7 Nc6 b8N Nb5 b7 Na5 Bb2 Bc1 Rh2 Rh1 c6 g1R Nd2 Rg6 Nb3 e6 Bc3 Qg5 Na1 Ne7 Na6 Raf8 Nf2 Kf4 b8B+ e5 Nc7 e4+ Kc2 e3 Kd3 e2 Rh3 Ke5 Nd1 e1N+ Ke2 Rh7 Ne3 Nd3 Be1 Rhh8 Bh4 Rh2+ Ng2 Rh1 Ne1 Kf4 Kd1 Ke3 Kc2 Rh7 Ne8 Rh2+ Kb1 Kd2 Nac2 Kc3 Be2 Kb3 Ne3 Ka3 Kc2 Ka2 Kd1 Kb1 Nf6 Nc5 Bc7 Rh1 Ng8 d3 Rh2 d4 Bf2 Re6 Ra8 Rhh6 Bf1 d2 Ke2 d1R Re8 Rh7 Bfg3 Rf6 Bcf4 d3+ Kf2 Re6 Bh3 Rhh6 Bf5 Rd6 Bh7 Rhg6 Nf5 Rd2+ Ke3 Rd5 h6 Na4 Rh3 Nac3 Rh4 Na2 Rh3 Rdh2+ Ke4 d2 Bh4 d1N Ne3 Rc5 Kd3 Nb2+ Ke4 Nbc3+ Kd4 Nd3 Bb8 Nb7 Bd6 Rd5+ Kc4 Nb5 Bf4 Na5#
1b1bn1N1/k7/B1K4P/6B1/Pq1nR1rr/b1r1Pb1n/N1R1PB2/4brN1 w - - 0 1 illegal: No possible last move
2n2r2/N2BP3/2P5/bnn1R2B/1N1P1r2/b3n3/Kq1PNkrb/2BrR2n w - - 0 1 legal: proof: g4 c5 b4 d5 e3 a5 g5 axb4 g6 d4 exd4 hxg6 Qe2 g5 Qd1 g4 f3 e5 Ke2 b3 Ke1 e4 Qe2 e3 Qc4 Bf5 Qb4 Be4 fxe4 cxb4 Kd1 Kd7 h4 Kc6 c4 g5 a4 b5 e5 f5 c5 Kd5 e6 Ke4 h5 b2 Kc2 b3+ Kc3 b4+ Kc4 g3 h6 e2 c6 e1B a5 g4 a6 g2 a7 g3 h7 f4 Na3 b1N Be2 f3 Ra2 f2 Bh5 f1N Bd1 b2 Kb3 Ne7 Nc2 Ne3 Ra4 Nc3 Rh6 b1N Ra6 Nb5 Ra3 N1c3 Rh1 Na6 Bg4 Ncd1 Rh2 Nf2 Bh5 Nc5+ Kb2 b3 Ra1 Nh1 Nh3 g1R Bg4 g2 Ra5 Nc8 Nb4 Bg3 Bh5 Bc7 Nf4 Rf1 Rh3 g1B Ne2 Rg8 h8N Rf4 Ng6 Bh2 Ne7 Rg2 Rg3 Rb8 a8B Qd6 Ra1 Ba5 Bb7 Qd5 Rg5 Qc4 Kb1 b2 Ba6 Qc2+ Ka2 Qc3 Bb7 b1R Ba6 Ng4 Re5+ Kf3 Bb7 Kf2 Ba6 Ncd6 Bc8 Ne3 Bd7 Re8 Nc8 Be7 Bb2 Rd1 Na7 Nc8 Bc1 Bd6 e7 Ref8 Nd5 Nb7 Rb1 Ba3 Nb4 Nc5 Bb2 Rc1 Ra1 Rc2 Rd1 Rc1 Re1 Rd1 Bc1 Qb2+
R4r2/4br2/2B3r1/Pb1bRBbq/k3q1qr/4NPnN/P4PrB/3K3R w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 g5 Nd2 gxh4 Nb1 a5 bxa5 f5 Qd2 Nc6 Qd3 Ne5 Qe4 Nf3+ exf3 fxe4 g4 b5 c4 h5 c5 d5 g5 Kd7 g6 Kc6 g7 e5 Bg5 e3 Bd3 b4 Rh3 e2 Bc4 e4 Bd3 b3 Bc1 b2 Bh6 Ra6 Bc1 Be6 Kd2 e1R Nc3 b1Q Na4 Nf6 g8B Qc8 Bc4 d3 Ba3 e3+ Kc3 e2 Kd2 d4 Bb3 Kb5 Rh1 h3 c6 h4 c7 h2 Bd5 h3 Nb2 Nh5 Be4 Be7 Nd1 Ka4 Ba8 Bd5 Bb7 Rg6 Bf7 Qg4 c8R Rh7 Rc3 Be4 Ne3 Bd5 Ng2 Rc1 Rb3 Rc8 Ne1 Rf8 Be6 Rhf7 Rb2 Bd8 Bc5 Be7 Rb6 Qb4+ Kc1 d2+ Kc2 d1R Ng2 e1B Ba8 Bd2 Bf5 Bdg5 Rb8 Rf1 Re1 d3+ Kd1 d2 Bd6 Qbd4 Ne2 Rg1 Nef4 Qe3 Bb7 Qd4 Ra8 Qe5 Ne3 Rg2 Rhf1 h1R Be4 h2 Nc4 Qd4 Bf5 Qe5 Kc2 d1B+ Kc1 Qd4 Re4 Bc2 Ne3 Bd3 Bc6+ Bb5 Re6 Qe4 Kd1 Rhg1 Bb8 h1Q Bd6 Qhh3 Bc7 Rh1 Rg1 Rhh2 Rh1 Ng3 Be5 Qhh5 Bd6 Rh4 Nh3 Nf1 Bh2 Ng3 Re5 Qef4 Bg1 Qc4 Bh2 Qce4
R1q2q1n/P2k4/rK1b1PrN/4bR2/1P2q1qN/3P3r/bq1BB1r1/5R1N w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 exf5 g5 c3 gxh4 Bd3 b3 Ba6 Nh6 Bf1 Ng8 Ke2 d5 Ke1 b5 Na3 b2 Qg4 b4 Qf4 b3 Nb1 Na6 Qc4 Nb4 cxb4 dxc4 Ke2 h5 Ke3 e5 a4 c5 f4 c3 g4 e4 f6 h3 a5 c2 f5 h4 d3 h2 g5 c4 f7+ Kd7 Kd4 h3 f6 c3 a6 e3 g6 e2 g7 e1B Ra2 Ne7 Kc5 Rh6 g8R Rg6 Na3 b1Q Bd2 c1R Ne2 b2 Kb5 c2 Ng1 Bg3 Be2 Be5 Nf3 Rcg1 Kc5 c1Q+ Nc2 R1g2 Re1 h1Q Rf1 h2 Ra5 Qg1+ Nd4 h1R Kb5 Rh3 Nf5 Qe1 Ncd4 Qc2 Nh6 b1Q Ndf5 Qbb2 Ng3 Qcc3 Bf3 Qe4 Be2 Bb7 Nh1 Qcc8 Rh8 Bd5 Rg8 Qe8 Rh8 Qgd4 Rg8 Qdc4+ Kb6 Qg4 Rc5 Qce4 Rh8 Ba2 Ra5 Bc3 Raf5 Be5 Rg8 Rg7 Rh8 Ng6 Rg8 Bfd6 f8N+ Kd8 Rh8 Raa7 Rg8 Nh8 Ng6 Kd7 Nh4 Rg6 Rf8 Rc7 a7 Rc6+ Ka5 Qf7 Re8 Qf8 Kb5 Qc7 Ra8 Qcc8 Ka5 Ra6+ Kb5 Ra4 Kb6 Ra6+
q1n4b/1r2rR2/2B2b2/P2N1kP1/4RN2/2qN1b1b/2q1pPP1/1K2nBbB w - - 0 1 illegal: Other
q2Nq3/bqPb1P2/n2krR2/B5pn/q1KN3P/r1b1B1P1/6nN/1R1R4 w - - 0 1 legal: proof: b4 b5 a4 f5 e4 a5 exf5 h5 d4 c5 g3 cxd4 Bg2 h4 Qd2 h3 axb5 hxg2 b6 Ra6 b5 Ra8 Qb4 axb4 Ke2 g5 Kd3 e5 c4 Ke7 h4 d5 f4 e4+ Ke2 d3+ Ke3 b3 Kd4 d2 f6+ Kd6 f5 d1N b7 e3 f7 e2 b6 e1Q f6 b2 Be3 Na6 b8N Bg7 f8R Bd7 b7 Rh6 Ne2 g1B Nd2 b1Q Nc6 Qb5 Kd3 d4 Nf3 Qea5 Rb1 Qe8 Nh2 Ra7 f7 Nf6 Rg8 Nh5 Nd8 Re6 Rh8 Qc6 b8B+ Qac7 Rh7 Qa8 Rh6 Be5 Rf6 Bf2 Bc1 Ne3 Rd1 Ng2 Be3 Bg1 Kc2 d3+ Kb3 Bc3 Nd4 d2 c5+ Kd5 c6 Kd6 Kc4 Bf2 Rh1 d1Q Rg1 Qc2 Rgd1 Qa4+ Kd3 Nb4+ Kc4 Ra5 Ba7 Qcb7 c7 Bg1 Bb6 Na6+ Rb4 Qc2 Rbb1 Ra3 Ba5 Qce4 Bd2 Qc2 Nb3 Ba7 Nd4 Qce4 Bc1 Qc2 Be3 Qa4+
1qb1B2r/1R2b1k1/n2BP1p1/1b1NN1P1/r1p2b2/P4P2/3rNBR1/1Kr4n w - - 0 1 legal: proof: c4 a5 e4 f5 d4 e5 b4 axb4 h4 d5 h5 g6 h6 Qe7 Qf3 Qg7 hxg7 exd4 cxd5 Ra3 e5 Ra8 Qe4 fxe4 Kd1 Kf7 Kc2 h5 g4 c5 d6 b5 d7 e3 d8B b3+ Kb2 d3 g5 e2 a3 e1B f3 b4 Bf6 h4 Bd8 h3 Ra2 h2 Bh3 d2 Bb6 d1R Be3 Bg3 Bd2 Bf4 Bc7 Nf6 g8N Ra4 e6+ Kg7 Bc1 Ne4 Nf6 Be7 Bf1 Na6 Bd6 Nf2 Be3 Rd5 Kc1 b2+ Kc2 Rd3 Nd2 b1B+ Kc1 b3 Nc4 Rd5 Ne5 Bd3 Re2 Rdd4 Nd5 Bc4 Kb2 Rd2+ Ka1 Bd3 Bd4 b2+ Ka2 Ne4 Rg2 Ng3 Bf2 Be2 Kb3 b1Q+ Kc3 Bd1 Bb5 Be2 Be8 Bd3 Ne2 Qb8 Re1 h1R Rb1 Rf1 Rb6 Nh1 Rb7 Bb5 Kb3 c4+ Kc3 Rd4 Kb2 Rc1 Ka2 Rc2+ Ka1 Rdd2 Kb1 Rc1+
3Nb2n/1B2P3/2p1r1NB/2r2p2/P3PPR1/Nq4bq/1Rn1Bb1p/2k3nK w - - 0 1 legal: proof: b4 b5 c4 bxc4 d4 e5 dxe5 a5 h4 g5 hxg5 c3 Qb3 axb4 a4 Ne7 Qa2 Ng8 Qa3 bxa3 g4 Ke7 e4 Ke6 g6 f5 g5 h5 f3 d5 Kf2 d4 Kg2 h4 g7 d3 g6 a2 Rh2 d2 Na3 d1Q Bd3 c6 Ba6 c2 Bh6 c1N Bb7 h3+ Kh1 Q8d3 Bf4 Rh6 Rf2 h2 Nb5 Bd7 Rb1 a1B Rd2 Bd4 Rdb2 Be8 Bg5 Na6 Rb3 Bf2 R3b2 Ne2 Na3 Ne7 g8N Q1b3 g7 Ng6 Nh3 Bd6 Rg1 Nh8 Ne7 Nb4 Ng6 Nc2 Rg4 Ra5 Bd2 Ng1 g8B+ Kd7 Bc1 Rc5 e6+ Kc7 e7 Kb6 Be6 Ka5 Bc4 Kb4 Nhf4 Kc3 Ne6 Bdg3 Nd8 Qf1 Bg5 Qh3 f4 Kd2 Bd3 Kc1 Be2 Rh7 Bh6 Rf7 Bg7 Rf6 Bh6 Re6
2n1RrB1/4PN1B/1b5B/1n5r/PPb1N3/1Rp3r1/P2pRrqp/K1kb4 w - - 0 1 legal: proof: e4 e5 d4 f5 h4 a5 b3 g5 Qd3 gxh4 c3 exd4 e5 b5 Qe4 b4 cxb4 a4 bxa4 fxe4 Kd1 Kf7 Kc2 Kg6 Kb2 Kf5 f4 d5 e6 c5 g3 h5 Ba6 h3 Be3 h4 Nf3 c4 Rh2 d3 Bg1 e3 g4+ Ke4 g5 e2 g6 e1R f5 d2 g7 Kd3 f6 d1B f7 d4 Rh1 h2 Bf2 h3 Nbd2 Re2 Ng1 Ne7 g8B Rh5 Be1 Nbc6 Bb5 Qd5 Nf3 Rf2 Ng1 Ba6 Rb1 Qg2 Ka1 Kc2 Bh7+ d3 Rb3 c3 Ne4 Na7 Bd2 Nec8 Bh6 d2 Nf3 Kc1 Nfg5 Bc5 f8R Bb6 Bc4 Nb5 Re1 h1R e7 h2 Nf7 Rg1 Rd8 Qf3 Bd5 Rg3 Re8 Qg2 Bc4 Nc7 Be6 Bc4 Re2 Nb5 Bg8 Ra7 Bf5 Rc7 Bg6 Rcc5 B6h7 Rcf5 Nfd6 Rf8 Nf7 Be6 Nh8 Bd5 Nf7 Bc4
rr2N2b/P1R2K1b/1p3BB1/5p2/1P4bn/qPP1p2R/kq1N4/rRq1B3 w - - 0 1 illegal: No proof kernel
B1q4N/3qRb1q/bP1N4/RP6/rKp1n3/2PRBnP1/3bqr2/B2rk2q w - - 0 1 legal: proof: f4 d5 e4 dxe4 a4 h5 f5 b5 axb5 h4 g3 h3 f6 gxf6 Qg4 f5 Qe2 f4 Qg2 hxg2 b4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 c5 h4 f5 b6 e5 b5 a5 h5 a4 h6 e3 h7 Ke4 d5 e2 d6 e1R d7 a3 Rh4 a2 Ne2 Kf3 Rg4 Kf2 Ng1 e4 Bd3 f3 Kb3 e3 c3 f4 Nd2 e2 Be4 Nf6 Rg5 Rd1 Rd5 e1Q Rd4 Bh6 Bg6 Ra4 Ba3 Rf8 h8B Qe4 Nb1 Ke1 Bc1 f2 Na3 f1Q Rb1 a1Q Rd6 f3 Rd3 f2 Ne2 g1Q Nf4 Ba6 Nc4 Qgh1 Nd6 Qc8 d8R Nbd7 Bb2 Ne5 Rd7 Nf3 Re7 Qfe2 Bh5 f1B Ng6 Bg5 Bg7 Qeb7 Bh6 Bd2 Nh8 Qbd7 Be3 Ne4 Bf7 Qhh2 Bd5 Qh7 Ba8 Rf4 Rc1 Bh3 Rc2 Qc1 Ba1 Be6+ Bd5 Bf7 Ra2 Rh4 Ra3 Rh2 Ra2 Rf2 Ra3 Ra5 Ra4 c4+ Kb4 Qh1 Ba8 Qc2 Rd4 Nc5 Ra3 Qch7 Rd3 Ne4 Rb3 Ra2 Ra3 Rh2 Ra4 Rf2 Ra5 Ra4+
1nrR3n/NK2b1qP/N2b4/N3b1BR/3pq1P1/1B1PpRP1/b4n2/br2k3 w - - 0 1 illegal: No proof kernel
NB6/1RPR2NB/b3q3/b3rn2/N1Pp1pBP/2q2P2/Kqkrb2q/1r2n3 w - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 Be3 hxg4 Bc1 c5 dxc5 e5 Qd4 exd4 Kd1 Ke7 a4 Ke6 e4 Ke5 c4 f5 Kc2 b5 Kb2 g5 h4 d5 f3 d3 a5 Kd4 e5 d2 e6 d1B e7 b3 e8N f4 a6 b4 c6 g3 c7 g2 a7 g4 Ra6 g3 Ra2 Nc6 Bd3 Qd7 Bf1 Nh6 Bd2 Ba6 Rh3 Nf5 Bd3 Ne5 Rh1 Be2 Bc1 Rh5 Ng7 Qe6 Rh3 Rd8 a8B Be7 Be4 Nd3+ Ka1 Bf8 Rh1 Ne1 Nc3 b2+ Kb1 Bc5 Na4 Bb6 Bc6 Ba5 Nb6 Kc3 Be3 Rg5 Ra4 Rd7 Ka2 b1R Na8 b3+ Ka3 b2 Ka2 Rh5 Ba7 Kd2 Ra3 Rg5 Rd3+ Kc2 Bb8 Rh5 Nh3 g1Q Nf2 g2 Nd1 Qd4 Nc3 g1Q Na4 Qc3 Bb5 Rd8 Bd7 Qh2 Bc8 Ne7 Bh7 Re5 Rg1 Nf5 Rg6 Rd6 Rf6 d4 Rf7 Rb6 Rd7 Rd1 Re3 Rd2 Rd3 Qb4 Ra3 Qc3 Rb3 b1Q+ Ka3 Qc1+ Ka2 Rd6 Rb7 Rb6 Rf7 Qf6 Be6 Rb1 Rd7 Qg6 Bf7 Qc6 Bh5 Qe6 Bg4 Q1b2+
B3rr1k/P2pP3/1RbPb3/2NB2B1/p1rb4/1rNqR1q1/P1n1q3/nK4R1 w - - 0 2 legal: proof: h4 c5 f4 g5 b4 gxh4 c3 a5 f5 a4 f6 Qa5 bxa5 exf6 Qc2 f5 Qb2 f4 Qb4 cxb4 Kd1 b5 Kc2 h5 d4 f5 g4 Kf7 e4 Kg7 d5 b3+ Kb2 f3 e5 b4 g5 f2 e6 h3 a6 h2 a7 f4 g6 h4 d6 f3 e7 h3 c4 Bb7 c5 Nc6 Bd2 Rh4 Be2 f1R Bd1 f2 Nf3 Na5 c6 Rc4 c7 Kh8 c8R Nh6 Ne5 Bd5 Bc3 Be6 Be1 Nf5 Nc6 Ne3 Rg1 h1Q Na3 h2 Rb1 Nc2 Rd8 Qf3 Nd4 h1B Nab5 Qg3 Nc3 Bc6 Kc1 b2+ Kd2 b3 Rc8 Rb8 Rc7 Re8 Bf3 Bg7 Rb7 Be5 Rb6 Bf6 Rc1 b1Q Bh1 b2 Nb3 Bg7 Nc5 Nb3+ Kd1 Bd4 g7+ Kh7 g8B+ Kh8 Bg2 Nba1 Kd2 Na3 Rd1 Qbg6 Bh1 b1R Bf3 Rb5 Kc1 Rb3 Bd2 N3c2 Bg5 Ra3 Kb1 Qd3 Bd5 Re1 Bh7 f1Q Bhe4 Qfe2 Bg2 Rf1 Re1 Rff8 Bh1 Qef2 Re3 Qfe2 Bhe4 Bb5 Ba8 Bc6 Bd5 Rb3+
3r1B2/n1p1n1bk/2P3Rq/N2b3B/1r4qR/P3R1Nr/b1PK1Ppq/N6r w - - 0 1 illegal: No proof kernel
4B3/k1P5/rpR1qRB1/rr1PR2n/pN2P2r/Pr1q1r2/2KBbn2/2b3N1 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 Qa4 exf4 bxc5 Qc7 c6 d5 c5 Qd8 Qc4 dxc4 Kd1 f5 d4 a5 e4 h5 g4 f3 a3 c3 c7 Kd7 d5 h3 g5 h4 g6 f4 g7 c2+ Kd2 b6 Ra2 a4 Ba6 h2 Bb5+ Nc6 Bc4 f2 Nc3 f1R Kd3 h3 Bb3 f3 Nge2 f2 Ng3 Nb4+ Kd2 Qf6 Nb1 Ra5 Nc3 Nd3 Nb1 Ba6 c8R Qe6 Bc4 Nf6 g8B Nh5 Rb8 Kc7 c6 Bh6+ Kc3 Bb5 Bg5 c1R+ Rc2 Ba6 Rg1 h1R Bf7 h2 Re8 Bb5 Re7+ Kb8 c7+ Ka7 Ne2 Ra8 Bg6 Ba6 Rg2 Rhg1 Bb5 h1R Bc6 Rh4 Bd2 Rce1 Rg5 Rg3 Re5 Rf3 Ng1 Ree3 Rh7 Rd1 Rh8 f1Q Bce8 Nf2+ Kb2 Be2 Nc3 Rc1 Na2 Rb5+ Nb4 Rb3+ Ka2 Qd1 Rc6 Rcc5 Rf8 Qc2+ Ka1 Qd3 Rf6 Ra5 Ka2 Rcb5 Ka1 Kb7 Ka2 R8a6 Ka1 Ka7 Ka2 Rc3 Kb2 Rb3+ Kc1 Qe3 Kc2 Qd4 Bc3 Bc1 Bd2 Qd3+
8/1R1B1b2/P2Nr2q/1K1p1BrP/2b2Rrr/P2P3b/1R1Bqp1n/nNb3k1 w - - 0 1 legal: proof: g4 c5 f4 h5 b4 hxg4 c3 e5 Qa4 a5 bxa5 exf4 Qb4 cxb4 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 f5 h4 b5+ Kb3 g5 d3 f3 c4 Kd4 a6 f2 c5 f4 c6 g3 a3 f3 e5 g2 e6 g4 e7 g3 e8B Qf6 c7 Nc6 Bd2 Na5+ Ka2 b3+ Kb2 b4 Nh3 g1R Rh2 g2 Bg6 Bh6 Be1 Ke3+ Kc1 b2+ Kc2 Nb3 Nd2 b1B+ Kd1 Ba2 Be2 f1Q Rb1 Na1 Bf5 b3 Ng5 b2 Ne6 Bc4 Rc1 b1B Ng7 Bba2 Ne8 d6 Bg6 Bh3 c8R Qg7 Be4 Nf6 Rc7 Ng4 Nb1 Ra7 Rf7 Re7 Bf5 Re6 Rb7 Bg5 Rc2 Qh6 Rcb2 f2 Rh1 Nh2 Beg4 Kf4 Kd2 Kg3+ Kc3 Bc1 Kb4 Qe2 Bc3 Rg6 Ra7 Bf7 h5 d5 Rb3 Rhg8 Bf6 Nf1 Rb2 Bc4 Be7 Rc6 Bd7 Re6 Bf5 Bg4 Ra2 Rg5 Rh4 Rh1 Rb7 g1R Rb2 Kg2 Ka5 Rh3 Bb4 Nh2 Nd6 Kh1 Be1 Rg2 Bd2 Kg1 Bh7 Bf5 Rf4 Rh4 Bg6 Bg4 Bf5 Bh3 Kb6 R2g4 Kc6 Bb3 Kb5 Bc4+
n6B/Pn1Rbq2/1r1RpPPq/3q1p2/1RbkrN2/N2B2B1/K1r2P2/3q3r w - - 0 1 illegal: No possible last move
1Nr1br1R/PRp1B1P1/q3B1P1/2b1Rr1q/rqP5/1B1k4/3N2qp/nKn5 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 e5 b4 axb4 hxg5 exd4 e5 f6 Qg4 f5 Qe4 fxe4 Kd1 Kf7 a4 Ke6 g4 Kd5 f4 h5 f5 b5 f6 e3 c4+ Ke4 Kc2 d5 f7 d3+ Kb2 d2 e6 d1R e7 d4 e8B h4 g6 h3 g5 h2 a5 e2 g7 e1R g6 b3 a6 b4 a7 d3 Ra6 d2 Ra1 Bc5 f8R Nh6 Bf7 Nd7 Be8 Nf7 Nh3 Qg5 Ng1 Nfe5 Nh3 Qg2 Rf2 Rf8 Ra6 Nd3+ Ka1 b2+ Ka2 Rf5 Be2 Rf1 Rg1 Rde1 Ra3 d1Q Ra5 Ba6 Bh6 Bb5 Bf7 Rc8 Be6 Kd4 Nd2 Nc1+ Kb1 Qa4 Bg4 Kd3 Bf3 Bc6 Rb5 Qa6 Bd1 Rff8 Rf6 Rf5 Nf2+ Kd4 Rb7 Rf7 Bg5 Nb3 Nde4 Bf8 Kc2 Ndc5 Bd5 Be8 Rh1 Nd3 Be6 Be7 Bh4 Bc5 Nd2 Ke3 Ng4+ Kd4 Bf2+ Re3 Re1 Ndc1 Bg3 Be7 Re2 Bc5 Nb1 Ke4 Ne5 Na1+ Kd2 b3 Nd7 Kd4 Bh4 Ref3 Nb8 Rf2 Nc3 b1Q Ne4 b2 Ba4 Qa2 Bc2 Q2a4 Bb3 Qb4+ Kd1 Kd3 Bg5 Re7 Rf8 Ref7 Rh8 Rf8 Re1 Re2 Be7 Rc2 Nc3 Rcf2 Re5 Rc2 Ne4 Rc3 Ba2 Ra3 Bb3 Ra2 Rh6 Ra4 Rh8 b1Q Nd2 Qb2 Nf3 Qbf2 Nd2 Na2 Ne4 Qh4 Nd2 Nc3+ Kc1 Na2+ Kb2 Qh5 Kb1 Nc1
2rb1KB1/RN2p3/2R1Pr1B/r2n2P1/2np4/1RqPqB2/1P4n1/nk2nqN1 w - - 0 1 legal: proof: g4 f5 a4 fxg4 a5 c5 d3 c4 a6 c3 Qd2 bxa6 Ra4 a5 Ra1 a4 Bh3 cxd2+ Kf1 Qa5 Kg2 Qf5 Kg3 Qf6 Bf1 Qb6 Kg2 Qd8 h3 Qb6 Ra2 Qc7 Ra1 Qd8 Kg3 g6 Kf4 g3 Ke5 g5 Kd4 g2 Kc4 Nh6 Kc3 Ng8 Rh2 g4 Rh1 g3 Kc4 Bb7 Kb4 Bf3 Kc3 Bg4 hxg4 Qa5+ Kc4 Qb6 Kc3 Qd8 Kc4 d1N Kd5 a5 c4 h5 f4 a3 e4 a2 f5 h4 e5 h3 c5 a4 c6 h2 f6 a3 c7 Nc6 c8B Qc7 Ba6 Bg7 Nc3 Na5 Nce2 Ne3+ Kd4 d5 f7+ Kd7 f8R Kc6 Nc3 Nac4 Rf2 Nf6 e6 Rhc8 Rb1 a1N Ne4 a2 Rf5 Nac2+ Kc3 a1N Be2 Ne1 Kb4 d4 Nd6 Nfd5+ Ka4 Kc5 Bf3 Be5 Nb7+ Kb6 Be4 Qc5 Rh5 Bc7 Bh7 Bd8 Bg8 Ra7 Bd2 Qc7 Rc1 Qc5 Nh3 g1Q Re5 Qf2 Ng1 N3g2 Bh6 Qe3 Rc3 Qc7 Rb3+ Kc6 Na5+ Kc5 Bb7 Nh4 Rf5 g2 Rf2 Raa8 Rc2 Ra6 Nh3 g1Q g5 Qf1 Ng1 Nhg2 Rc1 Nb4 Bf3 Nd5 Nh3 Raa8 Rg1 h1R Rc2 Kd6 Kb5 Rh2 Rh1 Ke5 Ng1 Kf4 Nb7 Ra2 Bf8 Rh6 Rcc3 Rg6 Bh6 Na5 Rc2 Qc3 Rc1 Nc4 Rc2 Bc7 Kc6 Ra5 Kd7 Bd8 Ke8 Qed2 Nc5 Ke3 Nb7 Qde2 Rc1 Kd2 Kf8 Qe4 Rd1+ Kc2 Rd2+ Kb1 Rc2 Qd2 Rcc3 Qee3 Rc2 Nd6 Rc4 Qc3 Ra4 Rb5 Ra7 Ra5 Rh2 Ngf4 Rc2 Nfg2 Rb6 Nc4 Rc6 Qb3 Rc3 Qc2 Ra3 Qc3 Rb3 Rf6+
n2r2RB/1p3pnb/1n1P2N1/1B1k1P2/2N2rrq/B3r3/1P2qNPr/2RKn3 w - - 0 1 illegal: No proof kernel
1R1K3r/r1n4N/Pp3n2/nP1BPq1R/p1Pb1q2/5N1b/4bp2/1r1kN1BB w - - 0 1 illegal: No proof kernel
4nNR1/q1Np1R2/pqnk1P2/Nr2bp2/R3b3/Kr5n/P2PBP2/3B2qr w - - 0 3 legal: proof: e4 g5 h4 f5 g4 c6 e5 Qb6 h5 Qd4 c4 b5 b3 bxc4 Qf3 Qd6 Qh3 Qf6 exf6 h6 Qh4 Bb7 Bb2 Bc8 Bd4 gxh4 g5 Rh7 g6 Rh8 Be3 Rh7 Bf4 Rh8 Bg5 hxg5 Kd1 e5 Kc2 g4 Kb2 c5 h6 a6 h7 g3 g7 h3 b4 g2 b5 e4 b6 c3+ Ka3 h2 b7 c4+ Ka4 c2 Na3 c1Q Rb1 c3 Ra1 e3 Nb5 c2 Kb3 e2 Nf3 e1Q Na7 g1N Nb5 Nc6 b8N Nh3 Ne5 Kd8 Nd6 Kc7 Bb5 Qb2+ Ka4 c1Q Rb1 Nh6 g8B Qc5 Be2 Qg1 Ng6 Qa7 Bb3 Bb7 Bbd1 Qbb6 Ka3 Nf7 Rb4 Bh6 Ra4 Bf4 Nf8 Be5 Rd4 Rg8 h8R Rg7 Rg8 Rg3+ Bb3 Rc3 Ra4 Rc5 Bbd1 Rb5 Nc4 Nd6 Ne3 Ne8 Nd5+ Kd6 Nc7 Qg6 Rg1 h1R Rg7 Qg2 Rf7 Qf1 Rg8 Qg1 Rc4 Nd4 Ra4 Be4 Nc6 Rb8 Na5 Nc6 Bd3 Rb7 B3e2 Rc5 Rb4 Qb5 Rc4 Rd5 Rd4 Qbc5+ Ka4 Rb3 Rc4 Qcb6 Rb4 Rb1 Ka3 Rb5 Ra4 R1b3+
1R1b4/1pr2rR1/p3pqKR/3PBrn1/1NP2NB1/1P4P1/3n1b1n/1Bq2bk1 w - - 0 1 illegal: No proof kernel
8/NnkBq1r1/3n2bB/PB2p3/RPq1Rq1p/K2N2bP/3b2Pp/1qrR4 w - - 0 1 illegal: No proof kernel
1Bq2r1n/P1N2Bb1/1p3P2/2Nr3B/pb1pR2q/KP2r3/Pnk2rRq/2N5 w - - 0 2 illegal: Other
bNB1N3/b4prn/p1q5/5p1N/PRr1P1b1/1Rn1p1P1/2PK3k/2BRr1n1 w - - 0 1 illegal: No possible last move, all moves rejected
2rn1q1b/RBp5/bR6/5NN1/NPpp1q1K/1Pb1Bpr1/P4P2/1k2Br1n w - - 0 1 illegal: No proof kernel
R1BN2bR/Npn3q1/p3n3/1P1p1q1r/Pk3N2/pPr5/3Pb1b1/R1r1KB2 w - - 0 3 illegal: No proof kernel
2BR3b/rq2pp1p/b1kp1N2/n1P2RP1/q2Bbr1N/3P1N1q/2n4P/R6K w - - 0 2 legal: proof: e4 b5 a4 g5 f4 gxf4 axb5 d5 Qg4 dxe4 Qg6 Bd7 Qa6 Bc8 Qd6 cxd6 Kf2 Kd7 b4 a5 c4 a4 g4 e3+ Kg2 f3+ Kh3 e2 d3 e1Q c5 f2 Kg2 a3 b6 a2 b5 Ra4 g5 Rf4 b7 Qe4+ Nf3 Nh6 b6 Ng4 Ba3 Nc6 b8R Ba6 b7 Na5 Rc8 Bg7 Bb2 Qf8 Rd8+ Kc6 Rg1 Ne3+ Kh1 Nc2 Bh3 f1B Nd2 Be2 Raf1 a1Q Bc8 Qaa4 Bd4 Be5 Rf2 Qh6 Ra1 Qh3 Rff1 Rg8 Rf2 Bh8 b8N+ Kd5 Nd7 Kc6 Nf6 Bf1 Kg1 Bg2 Nh4 Qd5 Rff1 Be4 Ndf3 Qdb3 Kh1 Qb7 Rfe1 Bd5 Re5 Be4 Rf5 Re8 Be6 Rf8 Rd7 Rc8 Rd8 Ra8 Bc8 Ra7
1K1rBbq1/2pq1N2/2r2p2/1RPpB1PN/n2Ppq1P/2nB2q1/2Rr3N/7k w - - 0 1 illegal: No possible last move
4NqB1/k7/qR2b1pP/1np1R1Pp/B1q1p2K/pPr1BRb1/1nN1P3/1b6 w - - 0 1 illegal: No proof kernel
1Nbk1qrK/7p/1p1Bp2p/1P2P2P/b1NR2R1/br5B/n3PRp1/2qnN2n w - - 0 1 illegal: Other
4K3/n1bB2p1/2rp1p1q/1N1bB1p1/P2rnP1p/q7/1NkPR1P1/B1rR1nR1 w - - 0 1 illegal: No proof kernel
2BN3n/1n1pk3/pP1R2P1/r1Qb4/3qbPK1/1B1R1rBq/1B4P1/2n5 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c3 dxc3 Ra5 a6 Ra3 e6 Ra2 Bc5 Ra1 Ba7 b6 Nc6 bxa7 Qb6 b3 Qa5 Na3 Nb8 Nc4 Qd8 Nb2 cxb2 Ke2 b1B Kf3 h5 b4 e5 f6 e4+ Kg3 h4+ Kg4 e3 b5 e2 b6 e1N g6 h3 f7+ Ke7 Nf3 h2 Qc2 Nd3 Bb2 Nc6 Ng5 Na5 Ne6 Nb7 Ra3 Nc1 Bc4 Rh5 Rd3 Ra5 Rhd1 h1Q Bb3 Qc7 f3 Qd6 Qc5 Bc2 Nd8 Nh6+ Kg5 Qh3 f8B+ Ke8 Bfg7 Ke7 Bge5 Nf7+ Kf4 Rb8 a8B Nh8 Kg5 Bb1 Bg3 Ba2 Qb5 Qd4 Qc5+ Nd6 Be4 Bb7 f4 Rc8 Bf3 Ba8 Bb7 Rc7 Bg8 Bd5 Bc8 Be4 Bb3 Bad5 Qb5 Rc2 Qb4 Rf2 Qc5 Qh6+ Kg4 Rf3 Rh1 Ke8 Rh5 Nb7 Rf5 Qh1 Rf6 Qh2 Rd6 Ke7 Ne6 Qh6 Nd8 Qh3+
2nN1R1R/1Pb2B2/bRrPb2b/4K1kb/qRq3Nb/P3q2n/2Q2P2/8 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qg4 Qd6 Qb4 Qd8 d4 axb4 Bd3 c5 Bd2 c4 Bc3 b6 Bd2 c3 Be3 Ra7 Bf1 Rc7 Bf4 Rc4 Bd6 Rc6 Bc5 bxc5 Bd3 c4 Bf1 Rc5 dxc5 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 g4 h5 a3 b3 d6 b2 c6 h3 c7 c2 b6 c1Q b7 c3 Nd2 b1B+ Kd5 c2 Ngf3 h4 Nc4 e4 Ra2 e3 Nb2 e2 Nd3 e1B Nfe5 h2 Ng6 h3 Bg2 Qd7 Kd4 Bh6 Nge5 Ne7 Rg1 h1B Nf4 h2 Nh3 Nbc6+ Ke4 Nd4 Rb2 Ba5 Rd1 Ne2 Rb6 Nf4 Ng5 Nh3 Ne6 Qa4+ Rd4 Bg5 Bf3 Bh4 Nd8 Be6 c8Q Kg5 f6 Rf8 Qc4 Nc8 f7 Qf1 Qc6 c1B+ Qc2 Qfc4 Bg2 Rh8 f8R Rh7 Bf3 Rc7 Rh8 Rc6 Bg2 Qf1 Rdb4 Bba2 Kd4 Bac4 Bd5 Bf3 Rf8 h1Q Rh8 Bd7 Bf7 Bde6 Rf8 Ba6 Rh8 Kf4 g5 Bh5 g6 Qf3 g7 Kg5 Ng4 Qc4+ Ke5 Bd2 Bg6 Be3 g8R Bc1 Rf8 Qe3+ Qe4 Bd2 Bf7 Bc1 R6b5 Bc7 Rb6 Bd2 Bg6 Qf3 Nh2 Bc1 Qc2 Qfb3 Nf3+ Kg4 Bf7 Bh6 Nh2+ Kg5 Ng4 Qe3+
7b/1rNB2qK/P1nP2B1/p1p3RP/5nR1/4PrqQ/6bR/kn3R1r w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 d5 cxd5 a5 b4 h5 bxa5 b6 gxh5 Qd6 Bg2 Qd7 Bf1 Qd8 a4 f3 e3 Kd7 a6 Qf6 a5 Nh6 a7 Qg6 a6 Ke7 Nc3 Qf6 Ba3+ Ke8 Kf2 Ng8 Nce2 Qd8 Bb4 fxe2 Ba5 bxa5 Kg3 Ke7 Kf4 Kd6 h4 Kc5 d4+ Kc4 d6 Kc3 d7 Kb2 Kf5 e1Q d5 g5 d6 c5 h6 g4 h5 g3 h7 g2 Qg4 Qg5+ Ke4 f5+ Ke5 f4+ Ke4 f3 d8R f2 Nh3 g1R Bb5 f1N Bd7 Qg3 Nf4 Nc6 Nd5 Rb8 a8B Bg7 Nc7 Nge7 Rg8 Bb7 Qh3 Ng6 Re1 Qe7+ Kf5 Nf4 Rh2+ Nd2 Rf1 Bc3 Rg7 Rh1 Rg4 Qg7 Rg5 Rhe8 h8R Bf6 Rh6 Rf8 Rhg6 Rf7 Rg4 Rbf8 R6g5 Re7 Rf3 Ka1 Rf1+ Nb1 Rhf2 Ne5 Rh2 Bg2 Bd5 Nc6 Bf7 Re4 Bfe8 Rb4 Bg6 Rb7 Rc1 Qe7 Rf1 Bh8+ Bf7 Nd5 Kg6 Qee5 Bfe8 Rf3 Kh7 Nf4 Bg6 Qg7#
1Rbn2Q1/3R2P1/P4k2/1NB4p/1rR2Nb1/qpn1Rn1r/P3rqP1/3K4 w - - 0 1 legal: proof: f4 a5 c4 d5 h4 e5 b4 exf4 bxa5 g5 d4 c5 e3 Bh6 Be2 cxd4 cxd5 g4 Bf3 Bg5 hxg5 gxf3 g6 Ke7 g7 f5 a6 b5 d6+ Kf6 d7 f2+ Kd2 f1Q e4 b4 Ba3 f3 Rh2 f2 Kc2 d3+ Kd2 f4 Bc1 f3 Qc2 b3 Qd1 Qf8 d8R Ne7 Rd4 Nd5 Rh4 Qa3 Ne2 Nc6 Nbc3 Rb8 Nb5 Nc3 Nf4 Nd8 Rd7 h5 Bb2 Re8 Rc1 Qg1 Rh3 f1R Rc2 f2 Re3 Re1 Kc1 f1N e5+ Kf5 e6 Nh2 e7 Kf6 Kd2 Qf2+ Kc1 Rf8 e8R Re2 Qe1 Nf3 Qd1 Qd6 Ba3 Rb6 Bc5 d2+ Kb2 Rb7 Qe1 d1B Kc1 Rb6 Qd2 Rf7 Qd5 Re7 Qg8 Re4 Na7 Rbb4 Nb5 Red4 Rd2 Rd5 Rd4 Rg5 Rc4 Rg3 Rb7 Rh3 R8e7 Bc2 Rb8 B2f5 Rc7 Bg4 Rd7 Qc7 Ng6 Qa5 Nf4 Nb1 Kd1 Qa4 Rdd3 Qa3 Rd7 Nc3+
1Br1K1b1/4R2N/2N3QP/1p1n1npP/br3qn1/2k3PR/1R1nP3/5qR1 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 cxd5 h5 gxh5 e6 a3 bxa3 d4 Qg5 d6 Qe3 d5 Qg5 Bg2 Qd8 Bf3 Be7 d7+ Kf8 d6 Bh4 Bd5 Bg3 fxg3 exd5 Kd2 c5 Ke3 b5 Kf4 g5+ Kf5 Kg7 h4 c4 Be3 d4 Ra2 d3 Qc1 c3 Qc2 d2 Qa4 d1B Qc4 c2 Qf4 c1Q Qf2 Ra7 Bd2 Na6 Ra1 a2 Qd4+ Qf6+ Kg4 Nb4 Qe4 Qf1 Rh3 Kf6 Nc3 Nd5 Bf4 Nge7 Nf3 Nf5 d8R Be6 d7 Rc7 Nd4 Ba4 Nc6 Qe3 Rb1 a1N Rb2 Nb3 Re8 Nd2 Re7 Ra8 h6 Ra5 Bd6 Qef4+ Kh5 Ra6 Nb8 Rac6 d8R Rc4 Nc6 Rb4 Red7 Nfe3 Qd3 Ng4 Ne4+ Kf5 Be5 f6 Rf8 Bg8 Rff7 Ke6 Kg6 f5 h5 Rb7 Bb8 Rc7 Na7 Ke5 Qc2 Kd4 Rfe7 Rbc4 Qb1 Rb4 Nf6 Kc3 Nc6 Qe5 Nh7 f4 Rh1 f3 Rh3 Qf4 Kg7 f2 Qg6 Qe1 Rd6 f1N Rf6 Qb1 Kf8 Nfe3 Ke8 Qbf1 Rff7 Qd4 Rf2 Qf4 Rg2 Nf5 Rg1 Rc8+
R1N1n1k1/r1P1q3/1bbnPP1b/4p2B/1Q6/6q1/pNNBNP1b/5Kr1 w - - 0 1 legal: proof: b4 b5 e4 c5 g4 e5 d4 h5 a4 hxg4 axb5 c4 d5 c3 Bg5 f6 Ra2 f5 Rb2 cxb2 Qc1 bxc1N exf5 Ne2 Bh4 Nd4 Be7 Ne6 dxe6 Qa5 Bd8 Qb6 Be7 Qd8 h4 d5 c4 a5 f6 g5 c5 a4 b6 g3 h5 a3 b7 a2 b5 g4 c6 g2 h6 d4 b6 g3 h7 d3 Ne2 g1B Bh3 g2 Nec3 d2+ Ke2 Nh6 Bg4 Bd7 Rh5 Ra7 Nd1 Rg8 h8N Nf5 Ng6 Bh2 Rh8 g1B Bh5 Na6 b8Q Bf4 b7 Bgh2 Kf1 B8h6 Na3 Nc7 Nc2 Nd6 Nb2 Be3 Bf8 Bb6 Ne7+ Rg6 Nc8 Qe7 Rg8 Ncb5 c7 d1Q+ Ne1 Qf3 Nc2 Qg3 Rh8 Bc6 Rg8 Nf7 Rh8 Qd8 Bb4+ Rg8 Bd2 Kf8 Qa8 Qe8 b8N Nfd6 Qb7 Qd8 Rh7 Qe7 Rh8 Ba5 Qb6 Ne8 Qb7 Nbd6 Qb4 Bd7 Nc6 Bb6 N6d4 Bc6 Rh7 Rg5 Ne2 Kg8 Rf7 Qe3 Rh7 Rg2 Rg7+ Kh8 Rg4 Qg3 Rd4 Kg8 Rd5 Ra3 Ra5 Ra4 Ra8 Ra3 Ne1 Ra7 Nc2 Rg1+
5rB1/1r1n1B1p/p4r1Q/q2r1r1N/1kP1NP1n/RP4N1/bN2q2P/5K2 w - - 0 1 legal: proof: Nf3 b5 Nc3 c5 Nb1 b4 Ng1 b3 axb3 c4 Nf3 c3 bxc3 Ba6 Ng1 Bc8 e4 d5 Ne2 dxe4 Ba3 g6 Bc5 Bg7 Ng1 Be5 Ba3 Bd6 Bc1 Bb4 cxb4 f5 f3 g5 Nh3 g4 Ng1 g3 Bb2 Qa5 Bd4 Qd8 Bf2 gxf2+ Ke2 Na6 Ra5 Nb8 Re5 e3 Re4 fxe4 Qe1 Nc6 Kd1 e2+ Kc1 Nb8 Qd1 Bf5 Nh3 Bg4 Ng1 Bc8 g4 Kd7 d4 Kd6 Kd2 e1R d5 e5 g5 a6 g6 Bf5 b5 Kc5 f4 Re3 d6 Rf3 Ke2 e3 g7 e4 b6 Kb4 b7 Rg3 d7 Ne7 g8B Rg5 Na3 Ra7 Nc4 Qa5 d8N Nd7 b8N Rb7 Nb2 Ng6 Nf7 Nh4 Nd6 Rh5 Bg2 f1R c4 Rg5 Qd5 Rd1 Qc6 Rd5 Kf1 Bg6 Bf7 Rgf5 Ne2 Rf8 Ng3 Rf6 Bf3 Bf5 B3h5 Bg6 Bg8 e2+ Kf2 Rff5 Ra1 e1R Ra3 Re2+ Kf1 e3 Nde4 R5f6 Nc5 Bb1 Nce4 Ba2 Bhf7 Rff5 Qh6 Rg2 Nh5 Rg6 Neg3 e2+ Kg1 Nb6 Nd7 Rgf6 Nc5 Nd7 Nce4 e1Q+ Nf1 Qe2 Nfg3 Qd2 Kf1 Qe2+
bN1rb3/NRb2rqN/P2N2bk/r1K1P3/RB4P1/6b1/1q1PQ1n1/1q2n3 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 h4 g5 hxg5 Qd7 e3 Qd8 a3 Bh6 Bc4 Bf8 Ba2 b3 Qg4 bxa2 Qf3 Bd7 Qd1 Bc8 Ke2 f5 Kd3 Kf7 Kc4 Kg6 g4 b5+ Kd4 c5+ Kd3 h5 e4 f3 d6 f4 d7 f2 a4 f1R a5 f3 Rh2 f2 Qc2 h4 Qb2 b4 Kc4 h3 Na3 b3 Kb5 c4 Qe5 b2 Ne2 b1Q+ Qb2 c3 Kc4 c2 Qc3 Bd6 Qb4 Qc7+ Kd4 Nh6 d8N Bg3 Qe7 Nc6+ Kc4 Nd4+ Qc5 Nf3 Nb7 Rd8 Nd4 Qg7 Qb5 Bf5 Nd6 Ne1 Nc6 Ra7 Rh1 h2 Nb8 Rf7 Rg1 h1B a6 Bf3 Bb2 c1Q+ Bc3 Qcb2 Kc5 Kh7 Qe2 Bg6 Ba5 Nf5 Bb4 Ne3 Nab5 N3g2 Na7 Rf5+ Kb6 Ra5 Kc6 Bf7 g6+ Kh6 Kb6 Qd3 Rb1 a1B e5 Ba8 Rc1 Qdb1 Rc7 Qa3 Rb7 Bc3 Kc6 Qab2 Kb6 Bd4+ Kc6 Bb6 Rh1+ Bh4 Rh3 Bc7 Ra3 Bg3 Ra4 Qh8 g7 Bg6 g8N+ Kh7 Qb5 Qg7 Nf6+ Kh6 Nde8 Rg1 Qc4 f1B Nd6 Bfd3 Qe4 Bb5+ Kc5 Rf1 Nh7 Rf7 Qe2 Be8+
3RK1nk/2B1B2q/b2qr3/Pb2n1R1/2r3rP/rq6/1P1b1bP1/NB4BQ w - - 0 1 illegal: No proof kernel
Rn2N1q1/1BR3b1/1B1B1r2/2P1P2K/3n1Prq/1nB4P/Q1b1pq2/3r1k1b w - - 0 1 legal: proof: e4 e5 a4 c5 g4 h5 gxh5 f5 d4 exd4 e5 b5 axb5 c4 Qd3 cxd3 Nc3 Ba3 Ne4 fxe4 Kd1 Bc5 Ke1 Bf8 c4 Ke7 b4 Ke6 f4 Kf5 Kf2 Kg4 c5 g5 h6 d5 h7 a5 b6 e3+ Kg2 a4 b5 d2 b7 d1R b6 e2 Rb1 d3 Be3 d4 Bc1 a3 Kf2 d2 Rb5 a2 Bb2 a1N Rb3 d3 Rb5 Nh6 Bc3 Nb3 Nf3 Nf5 Rb4 Ra6 Ra4 Bg7 Bg2 Nfd4 Nh4 Rg8 h8Q Be6 Ke3 Bd5 Nf5 Bc6 Nd6 Qf8 h3+ Kg3 Be4 g4 Rg1+ Kh2 Qh7 g3 Ne8 g2 Qh6 Qf7 Qe6 Qg6 Bf3 Qg3 Qc4 Bf8 Ra1 Rg4 Qa4 Bg7 Qa2 Nd7 b8B Bd5 b7 Rf6 Bc7 Nb8 Rf1 g1Q+ Rf2+ Q1g2 Bd8 Kg1 Bb6 Q2h2 Rg2+ Kf1 Qa6 Nd7 b8B Ba8 Bd6 Nb8 Qc4 Bb7 Qd5 Qf2+ Ke4 Qhg3 Ra3 Rb1 Ra6 d1B Ra7 d2 Ra8 Qe1 Ke3 Bc2 Qc4 d1Q Qa4 Qh4 Qa2 Qh7 Be4 Qg8 Bc6 Qh4 Rg3 Qe1 Bd5 Ne6 Kf3 Rd1 Bc6 Rgg6 Rg5 Qhf2+ Kg4 Ned4 Kh5 Qg3 Rf5 Rg4 Be4 Qef2 Bf3 Rfg6 Rf7 Rf6 Rc7 Bd5 Be4 Bb7 Bf5 Bf3 Be4 Bh1 Bb7 Qh4#
r2bk1qq/1Pp1b2B/7n/1KRRR1n1/r7/1R1P3P/1bNqPn2/3Q2rN w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 b3 f5 Bb2 h6 Be5 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 f6 a5 b4 g4 h3 g5 d3 a4 Kd2 a3 Kc3 f2 b6 f3 b5 a2 b7 g3 b6 g4 Qd2 Nd7 b8R Rh4 b7 Ne5 Rc8 Nf7 Qf4 Be7 Qf5 Ng5 Na3 Nh6 Bg2 f1N Rc1 f2 Nf3 Nd2 Nd4 f1Q Be4 g2 Nac2 Qe1 Qf1 g1Q Bh7 g3 Nf5 g2 Ng3 Re4 Rb1 a1B+ Rb2 Qc1 Rb8 Qc8 Qd1 Bd8 Kb4 c3+ Kb5 Rea4 Rb1 Nde4 Rb3 Qd4 Rf1 g1R Rf5 Qd2 Rd5 Bb2 Nh1 Nf2 Re5+ Qe6 Rc5 Qg8 f7+ Ke7 f8R Qdh8 Rf7+ Ke8 Rd7 Ba3 Rdd5 Bb4 Ne1 c2 Rc8 c1B Nc2 Bb2 Rb8 B4c3 Rc8 Bf6 Rb8 Kf7 Rc8 Bde7 Re8 Bd8 Re6 Bfe7 Ree5 Ke8
1R6/BKpbn2r/1n2Nk1q/3rq1r1/Q1P1nN2/1R2b1RP/R1Pn3P/n7 w - - 0 1 legal: proof: f4 h5 b4 a5 f5 axb4 f6 h4 Na3 h3 gxh3 exf6 Nb1 f5 Ba3 f4 Bb2 Bd6 Bc1 Bf8 e3 Ra4 a3 Ra6 Bc4 Ra8 Ba2 b3 d3 bxa2 Qe2 Qe7 Qf3 Qe4 Qd1 Qc4 dxc4 Ra5 Qd5 Ra6 Qd1 Ra8 Ke2 Ke7 Kd3 b5 Ke4 d5+ Ke5 g5 e4 f5 a4 d4 Kd5 b4 e5 g4 a5 f3 a6 f4 e6 d3 a7 b3 Na3 f2 Nb1 f1Q Bb2 d2 Nf3 g3 Qe2 d1N Bc3 g2 Ba5 g1R Be1 b2 Ng5 f3 Bf2 Bd7 Nh7 Rg5+ Qe5 Bh6 Nc3 b1Q Nf8 Qe2 Rg1 Rh7 Rg3 Qc1 Rb1 a1N Rb3 Qf4 Bb6 f2 Be3 Qh5 Ne2 f1N Kc5 Qfh4 Nf4 Nc3 Qd5 Kf6 e7 Qe8 N8e6 Nd2 Bg1 Qeh5 e8R Ne7 Rd8 Qe2 Rh8 Qe5 Rg8 Nbc6 Rgb8 Nce4+ Kb5 Nc8 Ka6 N6e7 Qc6 Nb6 Qa4 Qh5 Kb7 Qg6 Re8 Rd8 a8R Bb5 Rg8 Rd5 Rgb8 Bd7 Ra6 Nbc8 Ba7 Nb6 Ng2 Rg4 Ra5 Be3 Ngf4 Qgg5 Qb5 Qg7 Ra2 Qh6 Qa4 Rg5
r7/1Rqr3r/2P1r1R1/p1n2KBk/bnbP4/PqNPn1Q1/1b6/R2NR3 w - - 0 1 legal: proof: g4 e5 f4 exf4 g5 c5 c3 f3 Bg2 fxg2 g6 d5 b4 d4 bxc5 hxg6 cxd4 g5 Na3 g4 Nb1 g3 h4 b5 e4 a5 Ke2 g5 Kd3 f5 e5 Kf7 h5 g4 h6 Kg6 h7 f4 Ke4 b4 c6 f3 d3 b3 e6 f2 e7 f1N e8R b2 Nd2 b1B Re5 Nd7 Ndf3 Ngf6+ Kf4 Ne3 Qc2 Ba6 Ng5 Nc5 Re8 Bc4 Re7 Nfd5+ Ke5 Nb4 Qd1 Bc2 Bd2 Ba4 N5h3 Kh5 Re6 Qc7+ Kf6 Bh6 Ne2 g1R a3 g2 Qe1 g3 Qf2 Re1 Nc3 g1R Qh2 g2 Qg3 Rhd8 h8R Rd7 Rb8 Re2 Rd6 Rc1 Rb6 g1Q Rb7 Qd1 Re1 Qb3 Nf2 Rc2 Nfd1 Rh2 Bc1 Rcf2+ Ke5 Rf6 Qg1 Bg5 Qg2 Rh6 Qg3 Re2 Bd2 Rhh7 Bc1 Ng2+ Kf5 Re6 Re4 Bd2 Re5 Be1 Bg5 Bd2 Re1 Bc1 Be7 Bb2 Bg5 Ree7 Rf6 Re6 Rg6 Ne3+
2n4r/k4p1q/1r1P2B1/BR2nqP1/3P2PR/b1K2b2/Br3nQ1/Nb1B1b2 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 f4 e5 hxg5 axb4 c4 exf4 Na3 bxa3 cxd5 Qf6 Qb3 Qe7 Qd1 Qd8 e4 Kd7 d4 h5 Kd2 c5 g4 Kc7 a5 b5 a6 Kb6 e5 h4 e6 a2 e7 b4 e8B h3 a7 h2 Nf3 c4 Ba4 b3 Ng1 c3+ Kd3 c2 Be2 f3 Bb5 b2 Be8 b1B Qd2 f2 Bb5 f1B Qe3 Qd7 Qf3 Bb7 Kc3 Ba3 d6 Ne7 Bbd3 Nc8 Qg2 Qf5 Bd1 Nc6 Ne2 Rb8 a8B Ka7 Bd2 Ne5 Nc1 Bf3 Nb3 c1N Bd5 Rb6 B3e4 Ncd3 Be6 Bc2 Rb1 Nf2 Na1 Bcd3 Rb5 Bb1 Nc2 a1R Ba2 Qe6 Bg6 Qf5 Bd5 Ra2 Na1 Rb2 Ba2 Bc4 Rf1 h1Q Be1 Qh6 Rh1 Bf1 Rh4 Rc2+ Kb3 Qg7 Ba5 Rb2+ Kc3 Qh7
7N/1p1n2B1/Pk3b1K/1n3BBP/r3q1r1/nN2r2B/2P3Pb/R1nQ1rr1 w - - 0 1 illegal: No proof kernel
2nK1rnQ/PPB5/2r3r1/b6n/p7/Nq2BPRb/1NB1kPr1/5nBn w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 f5 a4 g5 h4 gxh4 b5 f4 Qb3 f3 exf3 b6 Qb4 axb4 a5 Nc6 a6 Nb8 Ra5 bxa5 Ke2 Kd7 Kd3 Kd6 Kd4 c5+ Ke4 e5 g4 h5 d4 b3 a7 b2 g5 h3 g6 c4 g7 a4 b6 c3 b7 c2 Bd3 h2 Bf4 c1R Nc3 b1N Nh3 h4 Rf1 h1N Bd2 Nc6 Be2 Nce7 Be3 Qb6 Rg1 Qb3 Bd1 Rh6 Bc2 Rg6 Nf4 h3 Nd3 h2 Nb2 Bh3 Rg3 Nc8 Nb5+ Ke7 d6+ Kf6 d7 Bb4 d5 Ba5 Bd1 Rc6 d6 Rb8 Bc2 Ra8 Nc4 Nd2+ Kd5 e4 Na3 Nf1 d8B+ Kf5 d7 Rb8 Rg1 Nhg3 Bc7 h1N d8B Nh5 Bh2 Rg2 Bdc7 Kf6 Bc5 e3 B5b6 e2 Be3 Rg6 Rg3 e1R Bg1 Rd1+ Ke4 Rd5 Nb2 Rdg5 Kd4 Nh6 g8Q Ra8 Qh7 Ng8 Qh8+ Ke6 Bb6 Kd6 Ke4 Rg4+ Kf5 Kd5 Bc7 Rb8 Bh6 Kc5 Ke5 Kb4 Be3 Kc3 Bd4+ Kd2 Be3+ Ke2 Kf5 Nhf6 Ke5 Rcc4 Ke6 Nh5+ Kd7 Rcc6 Kd8 R4g5 Rg4 Ra8 Rb4 Rg2 Rg4 Rb8 Rg3 Ra8 Ke8 Nce7+ Bd8 Rce6 Kd7 Rb8 Bc7 Rf8 Nbc4 Nc8 Nb2 Rf7+ Kd8 Rc6 Nd1 Rf4 Nb2 Rf8#
2bN2bq/3N2n1/Pr3P1b/1rpQ2B1/2Kn1b2/1r1P4/1B1nPR2/NN2k1n1 w - - 0 1 legal: proof: b4 a5 g4 axb4 c4 f5 a4 d5 Bh3 h5 gxh5 e5 Kf1 e4 Bg4 fxg4 Ra2 e3 cxd5 Qg5 d3 Qd8 Rd2 exd2 f4 Kd7 h4 Kd6 a5 Kc5 f5 Kd4 a6 Ke3 d6 g5 d7 c5 f6 b5 h6 g3 h7 b3 h5 g4 h6 b4 Qc2 b2 Qc3 b3 Qa5 Ne7 Qa1 Nbc6 Rh5 Nd4 Na3 b1R Qa2 b2 Rf5 Rb8 Nf3 Rb3 Ne1 Rb6 Rf4 Nef5 Rf2 Ng7 Qd5 Bd6 Kg2 Bf4 Kf1 Rg8 h8N Rf8 h7 g2+ Kg1 Rf7 Ng6 Qh8 d8N Rfb7 Ne5 Rb3 Nd7 R7b6 Qc4 Bh6 Qd5 R6b5 Kh2 g1B+ Kg3 Bh2+ Kg2 B2f4 Kf1 Ra1 Nb1 g3 Kg2 Raa5 Kf1 Rb6 Kg2 Qf8 h8B Rab5 Kf1 Nh5 Bg7 Qh8 Bf8 Ng7 Bd6 Rc3 Be5 Rcb3 Nc3 b1N Bb2 d1B Nc2+ Kd2 Na1 Ke3 Ke1 Nd2 Nb1 g2 Bb8 g1N Bd6 Bfg5 Bg3 Bf4 Bh4 R3b4 Bg5 Bb3 Qf5 Bg8 Kd1 Nc6 Kc2 Nd4+ Kc3 Rb7 Rh2 Rb8 Qd5 R8b6 Rh3+ Kf2 Rh2+ Ke1 Rg2 Nf1 Rf2 Rb3+ Kc4 Nd2+
1rNqnn2/RK1PNPQ1/8/1P1Br2P/4p1q1/1rB1k2b/1q2B2B/q5nr w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 f5 e3 g5 Nf3 gxf4 Ng1 b5 axb5 f3 Kf2 Qd6 Ke1 f2+ Ke2 Qd8 b4 h5 g4 f4 g5 Qd5 Qe1 f3+ Kd1 Nd7 Kc2 Bg7 Qe2 Be5 Qd1 Bf4 exf4 Nb8 f5 Qe5 Ra3 Qc5 Re3 Qd5 Re4 Qd8 Rg4 hxg4 Kc3 Kf7 d4 c5 h4 a5 d5 e5 f6 Kg6 d6 Kf5 h5 Ke4 g6 g3 b6 Rh6 g7 g2 b5 a4 b7 a3 f7 a2 Bg5 Re6 Bh6 Nf6 g8B Ne8 Nh3 Nd7 b8B Nf8 Be2 f1R Na3 f2 Qa1 Rb1 Bd2 f1R Nf4 Rb4 Rh3 Rh1 Nd5 g1N Ne7 Bd7 Qb2 a1Q Re3+ Kf4 Bh7 Bc8 Bb1 e4 Ba2 Bd7 Nc2 Bc8 Nd4 Bd7 Nc8 Re7 Nc6 Bh3 Kc2 c3 Bd5 c4 Bc7 Re6 Be1 Re7 Rd3 Re6 Rd2 Rb3 N6e7 Qa7 Rd1 Ke3 Ra1 Qb6 d7 Qb8 Ba5 Qf4 Bc7 Qg5 Bh2 Qg4 Kc1 c2 Qg7 Re5 Ra7 Ra3 Kb2 Rb3+ Ka2 c1Q Bb4 c3 Ba5 c2 Bc3 Rb2+ Ka3 Rb3+ Ka4 Qb1 Bf3 c1Q Be2 Nc7 Ka5 Ne8+ Ka6 Qbb2 Kb7 Qe1 Qg6 Qea1 Qg7 Rb8+
Nb4kn/1p2K2R/q1PP4/Nnq4b/2r1q1P1/N5qQ/bNP2b2/3B2Bn w - - 0 1 legal: proof: b4 a5 h4 axb4 d4 d5 a4 f5 Ra3 c5 Re3 g5 Re4 gxh4 dxc5 d4 Rf4 Ra6 e4 Rd6 Rg4 Rd5 exd5 Be6 Rf4 Bc8 Re4 fxe4 Ke2 Kf7 f4 e5 c6 h5 a5 h3 g3 h4 f5 e3 Kf3 e4+ Kf4 b3 Ke5 d3 f6 e2 a6 e1B a7 b2 a8N h2 Bg5 h3 Nf3 d2 Nc3 b1B Nb5 e3 Nac7 e2 Ne8 Nh6 Be3 Qb6 Bf2 Kg8 Na3 Ba2 Qc1 Na6 Nd6 Qc5 Bg1 Bg4 Ndc4 Nc7 Nb2 Rh7 Nd4 Bd6+ Ke4 Be5 Nb3 Nf7 Na5 Nh8 Qd1 Rh4 f7+ Kh7 f8N+ Kg8 Nd7 Bf3+ Kf5 Ra4 Be3 Rb4 Rg1 h1Q Nb6 h2 Na8 Qg2 Kg5 h1N Qa1 Bf4+ Kf6 Bh5 Bf2 Qh2 Bh3 Qg2 Bg4 Qe4 Rf1 Rd4 Bg1 Ra4 Bf3 Rd4 g4 Beg3 N5c4 e1Q Na5 Q1e2 Qc1 d1Q Qe3 Qa6 Qd3 Qd2 Bd1 Qdg2 Qe3 Be1 Qh3 Nb5 Rf3 Bb8 d6 Bf2 Rf5 Qef3 Ke7 Rc4 Rf7 Qgg3 Rh7 Qe4+
R4N2/2p2kPn/1r5b/rbR5/bRqp1n2/1BP4q/b1P2PR1/1Q1Kb2N w - - 0 1 legal: proof: e4 f5 a4 fxe4 b4 b5 h4 g5 Ba3 gxh4 axb5 a5 b6 d6 b5 Qd7 Bc5 Qc6 Bb4 Qc3 dxc3 axb4 g4 h5 g5 e5 b7 e3 b6 e2 g6 e4 Qd3 b3 Bh3 d5 Qc4 b2 Be6 d4 Ra7 h3 Qa4+ Nd7 b8R h2 b7 h4 Qb3 h3 Ra3 Ne5 Qa2 Nd3+ Kd2 e1B+ Kd1 e3 Rb3 Bh6 g7 Nf6 Bd7+ Kf7 Bg4 Nf4 Nf3 Bd7 Rg1 h1Q Rg2 h2 Nh4 Bb5 Nd2 b1B Ne4 Ra5 Ng6 Nh7 Ra8 Rb8 Nf8 Ba4 Qa1 Ba2 Rb4 Qf1 Rc4 h1B Rc5 Qc4 Qb1 Bb5 Ng3 Ba4 Rh2 Bhc6 Nh1 Bcb5 Rg2 e2+ Kc1 Re8 b8R Re6 Bf5 Rb6 Bd3 Qd5 Bc4 Qe6 Bb3 Qc4 Rb7 Bd2+ Kb2 e1Q Rbb8 Qe5 Rb7 Be1 Kc1 Qee6 Kd1 Rd6 Rb6 Qh3 Rbb8 Be8 Rbb5 Rb6 Rb4 Beb5
B1kn1R1B/3r2B1/3b2r1/Pp1q2b1/1brp1BQ1/nK1PN1rP/3Pq3/7R w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 a4 hxg4 Bc4 b6 Na3 Ba6 Bf1 Bd3 cxd3 bxa3 f4 c5 f6 g5 a5 d5 h3 Kd7 f7 e5 f5 b5 f6 a2 Qf3 g3 Kd1 g2 Kc2 d4 Qf2 g4 Rh2 g3 Qe3 e4 Kb3 c4+ Kc2 c3 Qf4 e3 Qd6+ Kc8 Qf4 e2 Qe5 e1Q Qh5 Qd5 Qh4 Rh7 Ba3 Qe2 Be7 Nh6 Rc1 a1B Rh1 Nf5 Rd1 Ra6 Re1 Nc6 Bd6 Nd8 Bf4 Bd6 f8B Rd7 Nf3 g1R f7 g2 Qg4 Rb6 Nh2 Ne3+ Kb1 Nc4 Kc2 Rc6 Kb3 c2 Bg7 c1R f8B Bc3 Bh8 Bcb4 Bfg7 Rb6 Qh4 Rc6 Ng4 Ra6 Ne3 Na3+ Kb2 Rc4 Kb3 Be7 Qg3 Rg6 Qg4 Bg5 Rd1 Qf2 Be2 Qe1 Bf3 Qe2 Bg3 Re1 Bd6 g1B Bf4 Bh2 Be4 Rg1 Rf1 Rg3 Rf3 Qf5 Ba8 Qf7 Bd6 Qd5 Rf8 Rg1 Bb8 Bhd6 Bc7 Rg3 Bb8 Bdc5 Bf4 Bd6
nNb3bk/K3Q3/NRqP1bnq/2pR4/PR1Prpn1/2rn2R1/3P3B/8 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 f4 g5 e3 h6 Be2 gxf4 g4 h5 g5 Qd6 Bf3 Qb6 Bg4 Qd4 exd4 hxg4 Kf2 f5 a4 Kf7 h4 Kg7 g6 b5 d6 e5 h5 c5 Qb3 e4 Qc3 g3+ Ke2 e3 Kd3 e2 Rh2 f3 Qc4 g2 Na3 f4 Qe6 f2 Rb1 f1N Bb2 b3 Nc2 b4 Kc4 e1N Kb5 Na6 Kb6 Be7 Bc3 b2 Nf3 g1Q Ne5 b3 Nd7 Qg5 Nb8 Nd3 Ba5 Bf6 Nb4 Nc7 N4a6 Ne3 Re2 Ng4 Re5 Ra7 Rd5 Ne7 Qe2 Rh7 h6+ Kh8 Qe6 Rg7 h7 Qh6 Qf7 Nc6 Qe7 Nce5 Rc1 b1Q Rc4 b2 Rb4 Ne6 Nc6 Rd7 Ncb8 Nc7 Ka7 Na8+ Bc7 Rd8 Bb6 Rdg8 Bd8 Qbh1 Rb6 b1B Rb4 Rf7 Rb6 Kg7 h8R Ba2 Rb4 Re8 Rh7+ Kg8 g7 Ng6 Rb6 Qg5 Rh3 Qh6 Rg3 Kh7 g8R Rg7 Rh5 Qc6 Rd5 Ne1 Rgb3 Nd3 R3b4 Bb3 Qb7 Re4 Be7 Be5 Bh4 Bf6 Bg3 Rge7 Rg7+ Kh8 Bh2 Re3 Qd7 R7e4 Qc7 Nde5 Qf7 Rc3 Qe7 Nd3 Rg5 Bg8 Rd5 Nf8 Rgg5 Nge5 Rg4 Nfg6 Rg3 Ng4
b2N1N2/1bR1r1qR/1n1PP3/1BP1Pnp1/r2N4/rp2q3/k1rQ1KN1/3b4 w - - 0 1 legal: proof: g4 c5 b4 cxb4 f4 e5 fxe5 h5 a3 hxg4 Kf2 b3 Ke1 b2 c4 d5 d3 b5 Ra2 d4 Ra1 b4 Bd2 b3 Bc3 Bb4 axb4 dxc3 h4 Ke7 e4 a5 e6 Kd6 h5 f5 b5 Kc5 b6 Kb4 b7 g5 c5 f4 d4 f3 h6 c2 e5 c1R h7 f2+ Ke2 g3 d5 a4 d6 a3 Ke3 a2 Bb5 f1B Bd7 g2 Bb5 Qc7 Nc3 Ka3 Nf3 b1B Ng1 Rc2 Nd5 Ne7 Qe2 Ra4 Rh3 Re8 h8N Nf5+ Kf2 Qg7 Qd2 Be2 Nf3 Bd1 Rh7 Nd7 b8N Re7 Ne3 Bb7 Nd4 Nb6 Ng6 Kb2 Nf8 Ra3 Bf1 Ba8 Nbc6 g1Q+ Ke1 Ra4 Ng2 Qe3+ Be2 Ka3 Kf1 Rcc4 Ke1 Be4 Nd8 Rc2 Kf1 Beb7 Bb5 Qd3+ Kf2 Qe4 Rc1 a1R Rb1 Ka2 Rc1 Bf3 Rch1 Bd1 R1h6 Kb2 Rg6 R1a3 Rf6 Ka2 Rf7 Re8 Rd7 Re7 Rc7 Qe3+
1NN5/2P1pPP1/N2B2b1/KQpq1N2/1b2r1kn/8/q1r2r1P/q1Rqn2B w - - 0 1 illegal: No proof kernel
Nnb1k1Nn/P1qbp2N/1bN5/P1rP4/2n3B1/1P4rK/1Bp1b3/3RQ2n w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 c3 d5 b3 b4 cxb4 a5 bxa5 f5 Ra2 fxe4 Rc2 Be6 Rc3 Bc8 Rc4 dxc4 d4 h5 g4 c5 f4 h3 Kf2 h2 Kg2 e3 f5 e2 g5 e1N+ Kg3 c3 f6 c4 a6 h4+ Kf2 c2 a5 h3 Kg3 c3 g6 Nh6 a7 Ng2 g7 Ne3 g8N Qc7+ Kh4 Nc4 Nd2 Nf7+ Nh6 Bg7 Qh5 Rg8 Qe5 Nh8 Bb2 c1N Ngf3 c2 Be2 Nd3 Rd1 h1B d5 h2 Qe6 Bg2 Nd4 h1B Nc6 Bh3 Bg4 Nf2 Qe1 Bf3 f7+ Kf8 Bc1 Bd4 Bb2 Rg5 Ng8 Bb6 Qg1 Be2 Qe1 Nd6 Nc4 Nh1 Na3 Nc4 Nb5 Qe5 Nc7 Rg7 Bh5 Rg3 Bf3 Bhd7 Bg4 Kg7 f8N Kf7 Nb5 Ke8 Nh7 Bd8 Nc3 Qc7 Na4 Na6 Nb6 Rb8 Na8 Rb5 Ba1 Rc5 Be5 Nb8 Bb2 Qd6 Qf1 Bb6 Qe1 Rg2 Kh3 Qc7 Ra1 Rg1 Rd1 Rg3+
Bbr2q1k/Pr6/1pR1q2b/2P1P2q/4pP2/2N2R2/n1Kbb3/1R1QRNr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 Bb2 fxe4 Bc1 h5 gxh5 c5 d4 e5 Qd3 c4 Kd1 c3 Bb2 cxb2 Ke1 e3 Qd1 e4 Nc3 Nc6 Nb1 Ne5 dxe5 Qg5 Nf3 Qf6 Ng1 Qd8 h4 Kf7 f4 g5 a4 Kg7 c4 d5 a5 e2 Kd2 e1B+ Kc2 g4 a6 d4 Na3 b1R Nh3 g3 Qc1 b3+ Kd1 d3 Ng1 g2 Ne2 g1B Nc3 b2 Nc2 d2 Ne3 Ne7 Kc2 Nd5 Qd1 Rh7 h6+ Kh8 h5 Bg4 a7 b6 Be2 Rb7 h7 Rc8 Nf1 Bh6 Rh3 Bgf2 Rf3 Qf8 c5 Bh4 Bd3 Be7 Bb5 Bd6 Bd7 Bb8 Bc6 Kg7 h8R Nb4+ Kb3 Rc1 Rb1 Na2 Rh7+ Kg8 Rc7 Kh8 Bd5 Bg7 Rc6 Bh6 Qe2 d1Q+ Qc2 Bg7 h6 Bd2 h7 Qe2 Qd3 Bh6 Qc2 Re1 Qd1 Qh2 Kc2 Qh5 Ng3 Rg1 Nf1 Rg2 Re3 Rg1 Re1 Kg7 h8R Be2 Rg8+ Kh7 Rg4 Kh8 Rg3 Re7 Rd6 Rec7 Ba8 Rf7 Rf3 Rb7 Ra1 Qg8 Rc6 Qf8 Kb3 b1Q+ Ka3 Qc2 Rb1 Qa4+ Kb2 Qc4 Kc2 Qe6
bn1R1q2/3P3N/2Pk1K2/1r3p1R/1R2b3/Pp3B2/3p1NPr/1bnn1QbR w - - 0 1 legal: proof: d4 a5 h4 d5 f4 c5 b4 axb4 e4 g5 hxg5 e5 Be3 exf4 exd5 Ra5 d6 Ra3 d5 Ra8 Bd4 cxd4 Kf2 Kd7 Kf3 b5 Ke4 f5+ Ke5 h5 c4 d3 c5 f3 a3 b3 g6 f2 g7 d2 Be2 f1B Bg4 b2 Qc1 h4 Bf3 h3 Qc2 b4 Qc1 h2 Be4 b3 Nc3 b1B Qd1 Bfd3 Nf3 Ne7 g8R Bb7 Kf6 Ra5 Qf1 Rb5 Nd1 Ba8 Ng5 Bdc2 Bf3 Be4 Nh7 Nec6+ Kg6 Be7 Nf2 Nb4 Rg7 Na2 c6+ Ke8 Rf7 Nc1 Kg7 Bg5 Rb7 Be3 d7+ Ke7 d6+ Ke6 Kg6 Qf8 d8R Bd4 d7 Kd6 Rg1 h1N Rb6 Ng3 Rh1 Nge2 Rh5 Nc3 Rb7 Nd1 Rb6 Ra5 Rb4 Rb5 Kg5 Be5 Kg6 Bh2 Kg5 Bg1 Kg6 Qg8+ Kf6 Qf8+ Kg5 Bbc2 Rh4 Na2 Nf6 Ndc3 Qc4 Bh2 Rh1 Nc1 Qf1 Bb1 Kg6 Rh5 Nh7 Bg1 R4h3 Rh4 Kg5 Nd1 R3h2 Rf4 Rh5 Rh4 Kg6 Rh2 Kg5 Qe8 Kf6 Qf8+
1r5B/1N5R/1P3rb1/6Np/bKP1nRrk/1pq4P/Pp1Q1R2/1qn1r2R w - - 0 1 legal: proof: g4 a5 b4 axb4 c3 c5 d3 c4 dxc4 f5 Bh3 fxg4 Bg2 Nc6 Bf1 Nb8 Bh6 b5 Qd3 b3 Be3 b2 Qd1 e6 Bg2 b4 Bc1 b3 Bd5 Bb4 cxb4 exd5 Kd2 Ke7 Kc3 Kf6 f4 g5 e4 h5 h3 g3 f5 d4+ Kd3 d5 b5 g4 b6 g2 Qf3 g3 Qf4 Na6 Qf3 Rh6 Rh2 Nb4+ Kd2 Kg5 f6 d3 Kc3+ d2 f7 Rf6 f8R Bd7 e5 Nd3 e6 Ba4 e7 Rb8 e8R Kh4 Re5 d1R Be3 Re1 Nd2 Nc1 Qd1 d4+ Kb4 d3 Ne4 d2 Nc5 Qd3 Re7 Qb1 Qc2 d1B Qd2 Bc2 Bd4 Bg6 Rh7 Qc2 Nb7 Qd3 Ne2 g1R Nf4 g2 Ne6 Qg3 Ng5 Qc3+ Kc5 Rfe6 Rf2 Nf6 Rh1 Ne4+ Kd5 Rgf1 Bh8 g1Q Rb1 Rf6 Ra1 Nd6 Kc5 Re4 Rb1 Rfe1 Ra1 Rg4 Rb1 Qc2 Kb4 Ne4 Rf4 Ne2 Rd1 Nc1 Rh2 Qe3 Re2 Qb1 Ref2 Re2 Rdf1 Re1 Rh1 Qc3+
4r3/bn1b1R1p/Kr3pPb/B3N3/krP2BQ1/3p3P/1RP3B1/b1B3qb w - - 0 1 legal: proof: f4 d5 a4 c5 e4 g5 b3 Nc6 Nc3 Ne5 d4 b5 axb5 gxf4 Nce2 dxe4 d5 Nc4 Nd4 cxd4 bxc4 Qd6 Ke2 Qc7 Ke1 Qd8 Kd2 Kd7 g4 e5 g5 a5 b6 e3+ Kd3 e4+ Ke2 f6 h3 f3+ Ke1 d3 g6 e2 Kd2 e1R Kc3 e3 d6 Kc6 d7 e2 b7 a4 b8B a3 Bd2 a2 Bg5 f2 Bc1 Ne7 Kb4 Bh6 Bd6 Kb6 Qd2 Ra4+ Kb3 Re8 Bf4 Nc6 Rh2 Na5+ Kc3 Nb7 Rg2 Ka5 Rb1 a1B+ Rb2 Rb4 Qd1 Ka4 Nf3 Qb6 d8B Bd7 Ne5 Rb5 Rg3 Qc5 Bg2 f1B Ba5 Qg1 Re3 Rb8 Bc6 Bg2 Kd4 Bh1 Bg2 Re8 Kc3 Rf1 Kd4 e1B Qg4 Rb4 Kd5 Bf2 Re2 Be6+ Kc6 Ba7 Re4 Re1 Rd4 Re4 Rd7 Rd4 Rf7 Rd5 Bd8 Bd7+ Kc7 Bd4 Kb8 Rc5 Ka7 Rcb5+ Ka6 Ba7 Ba5 Rb6+
rn1b2N1/NpP1Q1R1/1K1b1p1b/1rB4q/3P2b1/1bpk4/BB1P2P1/3B2r1 w - - 0 1 illegal: No proof kernel
1B3Bb1/K3qr2/2rn1PQ1/3q3p/PkBR1nP1/1qp3pn/3P1B2/n2N2R1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 g4 g5 h4 gxh4 e3 f5 Nc3 f4 Ne4 Bg7 Ng3 Bd4 exd4 fxg3 Ke2 Kd7 Ke3 Kd6 a4 b5 f4 e5 f5 h5 f6 c5 Nh3 b3 Qe1 b2 Be2 b1N Bb2 e4 Ra2 b4 Qf2 c4 Ra3 c3 Nf4 b3 Rh3 Rh7 Ng2 Be6 Bb5 Rf7 Rh2 h3 Rh1 h2 Rg1 h1N Bc4 Nd7 Qf5 Ne7 Qg6 Nc5 Bc1 b2 Rb3 Na3 Rb4 b1Q Bb2 Kc7 d6+ Kc6 d7 Nb7 d5+ Kc5 d6 Rc8 Bc1 Qa5 d8B Nf2 d7 Rc6 Bc7 Nh3 d8B Qb3 Bb8 Bd5 Bdc7 Be6 Bf4 Qd8 Bh6 Qd5 Bf8 Nc2+ Ke2 e3 Ba3 Qg5 Kd3 e2 Ne3 e1Q Nd1 Bd5 Bb5 Na1 Rd4+ Kb6 Bc4 Ka5 Bad6 Qge5 Bdc7+ Kb4 Bb6 Qg5 Rf4 Be6 Bf2 Qc5 Re4 Nd5 Rd4 Qe5 Bh6 Qc7 Bf8 Ndf4+ Ke4 Rd7 Ke3 Bg8 Ke4 Rf7 Ke3 Ne6 Ke4 Q5e7 Kd5 Qd8+ Ke4 Nd6+ Kd5 Rc8 Bc7 Nef4+ Kc6 Nb7 Kb6 Qd5 Bb8 Rc6+ Ka7 Nd6+
2n1q3/1q1N2KQ/2P1bBNR/1p6/n2n2PR/pPp2qn1/k1NPN3/1r3q2 w - - 0 1 illegal: No proof kernel
n7/3rp3/R1Q1K1b1/b3nb1N/1PP4P/2kNp1rp/RpP4R/nB3Rq1 w - - 0 1 illegal: No proof kernel
5k2/P3R3/pP2Rb2/r1pN1p1B/r1R2n2/1Pn1q3/Rrp1PKn1/2bQ1N2 w - - 0 1 illegal: No proof kernel
1b1b1rQ1/1R6/BP6/2Pp2n1/1kB1p2B/pnbP1Bq1/pNb4P/K2q3R w - - 0 1 illegal: No proof kernel
1bK1QqNk/P3N1p1/p1bnbbp1/P1q2R1b/1B3N2/4np2/2PR1P2/6N1 w - - 1 2 illegal: No possible last move
2Nr2N1/1p3nK1/1bRbRQb1/1P2pnP1/p1R1RPP1/1q6/B1p2pk1/q7 w - - 0 1 legal: proof: e4 d5 a4 f5 c4 fxe4 cxd5 g5 f3 g4 a5 g3 a6 Nxa6 Ne2 Nb4 Ng1 Na2 h4 a5 b3 Bh3 Ke2 Bg4 Bb2 Bh3 Bd4 Bc8 Bf2 gxf2 g4 Ra6 Bh3 Rg6 Bf1 Rg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 Ke3 Kd7 Kd4 Kd6 f4 h5 b4 e6 b5 e3 Nf3 h4 Ne5 a4 Bc4 e2 Nc3 e1B Nc6 h3 Ne7 c6 Rc1 Nb4 Ba2 Nh6 Ng8 h2 d3 Bd2 Re1 h1Q Re4 Nf7 Rc2 Bd7 Qa1 Be8 Qb2 Qa1 Rc1 Kd7 d6 Nd5 Rce1 Ne3 Nd5 Qb8 Nde7 Ba5 Nc8 Bd8 Rc1 Qc7 Rc4 c5+ Kc3 Qb8 d4 Nf5 d5 Bb6 Kd3 Qa8 Qg7 e5 Qf6 N5h6 Ke3 Qa5 Kf3 Qb4 Kg3 Be7 Kh4 Qb3 Kh5 Nf5+ Kg6 Bf8 Rc1 c4 Rc3 Ne3 Rc2 Be7 Kg7 c3 Rc4 Qc1 Re2 c2 Rc6 Qa1 Re1 Nf1 Re4 Ng3 Rec4 Nh6 Re4 Bg6 Rec4 Nf7 Re4 Ke8 d7+ Kd8 Re6 Kc7 d8R Bec5 Rdd6 Bb4 Rc6+ Kd7 Rc5 Nf5+ Kf8 Ba3 Rc6 Bb4 d6 Ba3 Rcc4 Bb4 Qd8+ Ke6 Qe7+ Kd5 d7 Bd6 d8R Rh3 Re8 Rd3 Rc3 Bdc7 Qf6 Bd6+ Re7 Rd2 Re2 Kd4 R3c4+ Kd3 Ree4 Rd1 Red4+ Ke2 Re4+ Kf1 Re1+ Kg2 Ree4 Bb8 Ree6 Rd8+ Re8 Ne3 Kg7 Bd6 Re6 Nf5+
1Kr1b1r1/1B2Pk2/r1p1RPR1/b2n4/2Rn3Q/1r4n1/2PN1n1P/brB2R1q w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Bg2 exd4 Nd2 f5 Ne4 f4 Ng3 fxg3 Bh3 Nf6 Bf1 Ng8 Kd2 d5 Kd3 g5 f4 a5 b4 a4 e4 g2 b6 g3 e5 g4 f5 a3 b5 a2 e6 Nc6 f6 Bb4 b7 Ra6 b8R Bd7 b6 Ba5 b7 Rh3 Be2 Nge7 Rb1 a1B Nf3 g1N Ba3 g2 Qd2 g3 Bd1 Ne2 Qe3 g1R Ra8 g2 b8R Ng3 Qh6 Re1 R1b7 g1R Be2 Rb1 Qf4 Rh7 Rb4 Rb3+ Kd2 d3 Ke3 Nd4 Rc4 c6 Qh4 d2+ Kf4 d1R Ke5 Rdb1 Kd6 Kf8 Rb7 Be8+ Rd7 Rg2 Bc1 Qb6 Rf1 Qb4+ Rc5 Qe1 Nd2 Rg7 Rc4 Qd1 Rf4 Qh1 Rf1 Rg8 Bd3 Re2 Rad8 Re3 Rc7 Rb7 Be2 Reb3 Rcd7 Rc7 Ra8 Ng6 e7+ Kf7 Bg4 Nf4 Rdd8 Nde2 Bc8 d4 Bb7 d3 Rd7 Nd5 Rc8 Rg6 Ra8 Nd4 Rdd8 Bd7 Rg8 Rg4 Rad8 Be8 Rg6 Rg5 Kc5 Rg4 Rd6 Rg5 Re6 Rg4 Ne4 d2 Kd6 d1N Nd2 Nf2 Rh6 Rg7 Rg6 Rg8 Bc8 Rca7 Bb7 Nb6 Kc7 Nd5+ Kb8 Nb4 Bc8 Rc7 Bb7 Nd5 Rfe1 Nb6 Rd1 Nd5 Rf1 Rc8+
r1Q5/nbp1nkn1/1P1R1P1b/2nr2bN/2RR1P2/q4q1n/2P4R/KB1n3N w - - 0 1 legal: proof: g4 d5 e4 dxe4 a4 f5 gxf5 b5 b3 bxa4 Bb2 h6 Bf6 Ba6 Bh4 Bc8 Bg5 hxg5 f4 e5 h4 a5 d4 e3 f6 e4 d5 e2 Kd2 e1N Kc3 e3 Kb2 g4 b4 g5 d6 a3+ Ka2 a4 d7+ Kf7 h5 e2 h6 g3 h7 g4 b5 g2 b6 g3 Nh3 g1N Qd2 g2 Nf2 Ngf3 Qc3 g1N Nd3 Bh6 Qe5 Ng5 Qd6 N1h3 Nf2 Nd3 Nd2 e1B Nb3 Ne7 Ng4 Ndf2 Rh2 Nd1 Bc4+ Ne6 Nc1 Bh4 Nf2 Nbc6 Nh1 Na7 Ne2 Bb7 Neg3 B4g5 Nh5 Qc8 Qe5 Rd8 h8R Qb8 Rd2 Qc8 Rd5 Ng7 Qf5 Qb8 Rb1 Qc8 Rb4 Qb8 Kb1 a2+ Kc1 a1N Kb1 a3 Ba2 Nb3 Rc4 Qc8 Rdd4 Nc5 Ka1 Qb8 Bb1 a2 Rc3 Bc6 Rh7 Qb7 Rcc4 Bg2 Qg4 Qf3 Rd6 Qf2 Qf5 Bb7 Qg4 Qf3 Rh8 Rf8 d8R Re8 Rdd4 Rf8 R8d6 Rfd8 Qc8 Rd7 Re6 Rd5 Rd6 Ng1 Re8 Nec6 Re2 Nh3 Rf2 Ne7 Rh2 Ne3 Kb2 a1Q+ Kc1 Qa4 Kb2 Qb4+ Ka2 Nd1 Ka1 Qba3+
QNb1r2b/n4pr1/2P1q2k/K2q1Br1/2R1RR2/4rPBb/Rn2P1P1/2rb4 w - - 0 1 illegal: No proof kernel forced: bxLB
1rb1K3/2q1b2k/3pR3/1P1B1nqN/P1NP1RP1/5n2/RrnQ3n/r3qRq1 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 b5 c4 bxc4 b5 gxh4 Ba3 f5 Bb4 axb4 exf5 Bg7 Qc1 Bh6 Qd1 Bf8 Ke2 Kf7 Kf3 Kg7 Ke4 e5 Kd5 h5 d4 c5 g4 c3 f4 h3 a3 b3 f6+ Kh7 f7 b2 f5 h4 f6 c4 Qd2 e4 Qe2 d6 Qc2 h2 Qf2 c2 Qf4 c1Q Be2 e3 Qf2 c3 Qf3 h3 Nd2 b1R Qg3 c2 Ra2 Be7 f8R Nd7 Kc6 Ne5+ Kd5 Rb2 f7 Qc7 Qf4 Nf3 Re8 Nh6 f8R Nf5 Qg5 Qe1 Bc4 c1Q Ne2 Ra4 Rg1 h1N Rf1 h2 Nf4 e2 Nh5 Nhg3 Bb3 h1Q Nc4 Ra8 Qd2 Qg1 a4 Rb8 Rf6 Rf8 Re6 Rf6 Rf8 Rh6 Rf2 Nf1 Rff6 N1h2 Rf1 Qef2 Rf8 e1N Rff6 Nc2 Rf8 Qd8 Kc6 Qfe1 Rff6 Qg8 Rf8 Qg5 Kc7 Bb7 Kd7 Bc8+ Ke8 Rf6 Re4 Re6 Rf4 Re2 Rf6 Rb1 Re6 Ra1 Qd1 Qcd2 Qc1 Qc3 Qd2 Rf2 Na5 Qc5 Bd5 Qc7 Nc4 Nce3 Qc3 Rb2 Qd2 Nc2
B2Br1b1/q2bB1b1/1b2RP1n/4P1rq/PBNp4/1k1P4/4p1b1/K3NnQr w - - 0 1 illegal: No proof kernel
1n6/1BbP2r1/P1nB1Qrp/1Bn1qn2/rk3p2/N2nRN1K/P4P2/1B4qb w - - 0 1 legal: proof: d4 a5 c4 g5 b4 d5 h4 gxh4 bxa5 e6 Na3 dxc4 d5 e5 Rb1 Na6 Rb2 Nb8 Rd2 Nh6 Rd3 Ng8 Rd4 exd4 g4 Kd7 e4 Kd6 g5 Kc5 g6 f5 d6 b5 g7 f4 e5 h3 e6 b4 e7 h2 e8B b3 d7 c3 Bf7 b2 Bg2 b1Q Kf1 d3 Qd2 h6 Bc4 c2 Bb5 Ne7 g8B Nec6 Nc4 Qg5 Nd6 Rh7 Ne8 Bb7 Qd1 d2 Bd3 Qe5 Ng7 Bd6 B8d5 Kb4 Nf5 Rg7 Bb2 c1N Qf3 d1N B5e4 Nb3 Ne3 Nc5 Bb5 Ra6 Nc4 Ne3+ Ke2 Ra7 Na3 Nf5 Qh3 Qc1 Nf3 Qa1 Re1 h1R Qh2 Rg1 Qh4 Qb1 Bh1 R1g6 Kf1 Qd1 Qg5 Ba8 Kg2 Qc1 Re2 Qg1+ Kh3 Nce7 Ba1 Qd4 Re1 c6 Re3 Nb7 Be2 c5 Ne1 c4 Beg2 c3 Qf6 c2 Be4 c1N Bb5 Nc5 Bb1 N1d3 Bb2 Qd5 Be5 Bc7 Bd6 Qe5 Bg2 Bd5 Bf3 Bf7 Ba8 Bd5 Bb7 Bh1 Nf3 Ra6 Qh4 Nec6 Qf6 Rb6 Ba4 Rb5 a6 Ra5 Bb5 Ra4
n2NNB2/2P2p1r/p6b/1P2RQbK/1N2PNb1/1b2k3/P2qB2n/1rbb2b1 w - - 0 1 legal: proof: c4 c5 b4 e5 f4 h5 fxe5 b6 g4 hxg4 d4 cxd4 c5 b5 Nd2 Qc7 Rb1 Qb6 Rb2 Qc7 Rc2 Qd8 Rc4 bxc4 Kf2 Ke7 Kg3 Ke6 e4 g5 h4 d5 c6 a6 h5 c3 c7 d3 h6 c2 h7 d4 Bh3 Nd7 Nf1 d2 Ne2 d3 Ng1 Nh6 Qf3 d1B Bd2 c1B Nh2 Bb3 Be1 d2 Bf1 d1B Nh3 Rb8 Nf2 Nb6 Nd3 Na8 Be2 Qd4 Qf4 Qb2 Qf1 Qd2 Nf3 Be7 Rh5 Bd8 Kh2 g3+ Kh3 g2 Bh4 g1B Nd4+ Kd7 e6+ Kd6 Qf2 Ng4 e7 Nh2+ Qf5 Be3 Ne6 g4+ Kg3 Kc6 e8N Bh6 Be7 Bd7 Kh4 g3 Rg5 g2 Bf8 g1B Kh5 Bf6 Nd8+ Kb6 Qd5 Bh3 Re5 Bfg5 Qd7 Rb7 Qf5 Rb8 Bc5+ Kb5 Bd6+ Kc4 Bf8 Kd4 b5 Ke3 Nb4 Rb6 Bg4 Rg6 Bf3 Rg7 Be2 Rhg8 h8N Rh7 Bg4 Rg6 Be2 Rc6 Ng6 Rc2 Nh4 Rb2 Ng6 Rb1 Nf4 Bg4+
4Rb1Q/N2k1n2/1P1Nb2n/1PK2p1b/NP2rPq1/q4Nr1/b3rn1p/R1B5 w - - 0 1 illegal: Other
q3rNqk/2BNb1Nn/1N1n2Pr/P2P3b/q1np1p2/3P1K2/5R1R/1bn3Q1 w - - 0 1 illegal: No possible last move
q3br1q/NR3Q1b/r2n3K/1R1p1P2/2pR4/1rbB4/1PPnR1Pr/k1B4n w - - 0 1 illegal: No possible last move
1q1Bk3/B2r3p/2nPb1b1/QR2r1pP/7q/5qn1/qr1BNPP1/3bRB1K w - - 1 2 illegal: No possible last move
3KQb2/bP1B4/1rb3B1/3r2bN/pn1Bq1RP/P1r1PbbB/p6k/5n1N w - - 0 1 illegal: No proof kernel
6q1/2Nbqnp1/q1pr1nPQ/bPqq3N/r1B1PR2/P1N1k3/6R1/1K2N2q w - - 0 1 illegal: No proof kernel
1bn4r/k2pR2q/Nr1P1NRN/3P2r1/1P2pr2/2B1N2P/2K1r1rq/2n3Qb w - - 0 1 illegal: No possible last move, all moves rejected
4K1qn/BPRP1Q2/rbr1R2p/1n1k3n/4rbNr/4R1RP/2bpnP2/7N w - - 0 1 legal: proof: d4 b5 c4 f5 g4 fxg4 a4 d5 axb5 e6 Bg2 dxc4 d5 Bd7 d6 Bc8 Bd5 exd5 Kd2 Kd7 Ke3 Ke6 Kd4 c5+ Kc3 g5 e4 a5 b4 g3 h3 g2 e5 a4 b6 g4 b5 d4+ Kd2 d3 Ke3 c3 Kf4 c2 b7 a3 b6 c4 Be3 c1R Bd4 a2 Qe1 g3 Ke4 c3 Qd2 c2 Rh2 Ne7 Be3 Nbc6 b8R Ra6 b7 Nd4 Nc3 Nb5 Nf3 g1N Rg2 Ne2 Ba7 Nf4 Ne2 Nh5 Nh2 Ng6 Qf4 d2 Ra8 Re1 Rc1 a1B Ng4 Bd4 Rg1 g2 Rb8 Rd1 Ng3 Bh6 Nh1 Bb6 Re1 g1N Re3 Bd7 Rc8 Bg5 Rc7 Ne2 Rb1 c1R Rbb3 Be8 d7 Rc6 Rg3 Re1 Rbe3 Bf7 Qf3 Qg8 Qf5+ Ke7 e6 Kd6 e7 Bf4 e8R Bb3 Qf7 Ba4 Kf5 Bc2+ R3e4 h6 Re6+ Kd5 Qf6 Rea1 Qe7 R1a3 Qf7 Rd3 Ree3 Rd4+ Rd3 Rh7 Rge3 Nh8 Rg3 Ng7+ Kf6 Nh5+ Ke7 Rg7 Rde3 Re4 Ne5 Qh7 Kf8 Rg4 Ke8 Rh4 Ng4 Qg8+
b6R/1r1KQ1Nq/brpn4/rPp1R2q/3RBbp1/7R/2nP1PP1/2n2Nk1 w - - 0 1 illegal: No proof kernel
4qK2/1P1pP3/1p5R/1PkP1R1N/qr2np1N/6b1/rQq1nRB1/Rb3n1b w - - 0 2 legal: proof: f4 e5 b4 exf4 a4 h5 g4 hxg4 a5 b6 a6 Bb7 axb7 c5 b5 Ke7 Ba3 Ke8 Bb4 cxb4 Kf2 Ke7 d4 Kd6 e4 f5 c4 a5 h4 g5 h5 g3+ Kf3 b3 d5 g4+ Ke2 b2 Kd3 f3 Kd4 g2 h6 g3 h7 f2 Ne2 g1N Ra4 g2 Rh3 Qc7 Qd2 Nh6 Re3 Ng4 Rh3 Na6 Nf4 Ne3 Nh5 Nc5 Ra1 a4 Rf3 a3 Rf4 Rg8 h8R a2 Rh6+ Rg6 Qc1 Qc8 Nd2 b1B Nf3 Ra6 Be2 f1B Nh4 Ra4 Qc2 Rb4 Rf2 f4 Qb3 Be7 Bf3 Bfd3 Qb2 Nf1 Bg4 Be2 Bh3 Bf3 e5+ Kc7 e6 Kd6 Bg4 Ne4 Bh3 Rg7 Ng6 Bh4 e7 Bg3 Nh4+ Kc7 Ke5 Ne2 c5 g1Q c6 Bh1 Kf5 Rg6 Bg2 Kd6 c7 Kc5 Bh3 Qg2 Ke5 Qg8 c8R+ Rc6 Ra8 Qg6 Rf8 Rc8 Rf7 Ra8 Rf5 Bc2 Rc1 a1Q Rd1 Qa4 Ra1 Qh2 Bg2 Bb1 Rf6 Qg8 Kf5 Qe6+ Kg6 Qd6 Kg7 Qc6 Rf8 Qg6+ Kh8 Ra6 Rf5 Qa3 Bf3 N2c3 Rg2 Qb3 Re2 Ra2 Rc2 Qe2 Bg2 Qa4 Rd2 Qd3 Re2 Qdc2 Rf2 Qg5 Kh7 Ne2 Kh8 Qf6+ Kg8 Qg6+ Kf8 Qe8+
2b3n1/PK3rpb/5N2/pP1B2P1/P2bQ3/bq2b1Rn/N4kBp/BB2r1r1 w - - 1 2 illegal: Other
1r3R1Q/K2p2Bn/n2PP3/p6b/nNNbRN2/6Pb/rPq1p1N1/1rk4r w - - 0 1 illegal: No proof kernel
2r2b2/rbpN4/p1r1qr2/P4N2/1PPK2n1/P4nQ1/BnbRBp2/k1N4N w - - 1 2 illegal: Other
3q2b1/1P2p1B1/1bN1P1q1/2p1r3/3n1kn1/1PQ1rr1p/1Rr2PBK/1bB1NB2 w - - 0 1 legal: proof: h4 f5 c4 d5 e4 dxc4 a4 g5 e5 b5 axb5 gxh4 Ra3 Bb7 Re3 Bc8 Re4 fxe4 g4 Kf7 d4 Kg6 b3 h5 b6 a5 g5 Kf5 g6 h3 g7 h2 d5 c3 d6 h4 b7 a4 d7 c2 Be3 c1R Ke2 h3 Nc3 a3 Qd3 a2 Bd2 a1Q Qe3 Nh6 g8B Rc2 Na2 Ra5 Nb4 Ng4 Qd4 e3 Kf3 e2 Kg3 e1R Bfc4 Qb1 Bb5 Bh6 Bf1 Nc6 Bc1 Be3 Qc3 Bb6 Bd5 Nd4 Nf3 Rf8 Nc6 Re4 Rg1 h1B Ne1 Bf3 Rh1 Re3 Rg1 Be2+ Bf3 Bd3 Rh1 Qe8 d8B Be6 Rg1 Bg8 e6 Rae5 Rh1 Nf6 Kh2 Kf4 B3g2 Bg6 Nb4 c5 Bc7 Qd8 Nc6 Ba7 Ba5 Bb6 Bb4 Be4 Bba3 Rf7 Bab2 Ng4+ Kg1 Rh5 Qc4 Kg5 Nd3 Nf5 Bd2 Rc1 Bg7 Ngh6 Qc3 Nd4 Kh2 Rf3 Be2 Kg4 Rd1 Re5 Ne1 Kf4 Bef1 Qd3 Qa5 Rc3 Rb1 Qc2 Bc1 Ng4+ Kg1 Beh7 Rb2 Qf5 Kh1 Qf6 Qb4 Bb1 Qc4 Rc2 Qc3 Qg6 Kg1 Nh6 Kh2 Ng4+
nb1R2nq/p5q1/P5PN/1R3K1Q/n2P1PN1/1bNpN2B/3b1p2/2kr1r1b w - - 0 1 illegal: No proof kernel
2Nbq3/br3bPr/n2bpRn1/1KNB3N/4PpRP/1QPp4/8/2N2kqq w - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 axb5 h6 d4 cxd4 Be3 Qb6 Bf2 Qd8 Bh4 gxf4 g5 Qc7 g6 Qd8 Bg5 hxg5 Kd2 a5 Kd3 d5 h4 Kd7 b4 Ke6 e4 Ke5 g7 f5 b6 f3 b7 Kf4 b5 Kg3 b6 Kf2 Ra3 a4 Bh3 f4 Nd2 g4 Ne2 g3 Rc3 g2 Bg4 g1B Rc7 a3 Nb1 a2 Nbc3 a1B Ng3 Be6 Rh3 Qe8 Nh5 Na6 b8N Rh7 b7 Ra7 Nb1 Bf7 Nc3 e6 Nd7 Kg2 b8N f2 Nc5 f1Q+ Ne2 Ne7 Nbd7 Ng6 Nb6 Bd6 Nc8 Qf2 Re7 Rd7 Nc1 Qe1 Rh2+ Kf1 Rg2 Bc3 Bh3 Ba5 c3 Bd8 Qb3 Qf2 Rg3+ Qg2 Bg4 Qh1 Bd1 Bf2 Rg4 Bg1 Kc2 d3+ Kb2 d2 Ka3 d4 Ka4 d3 Kb5 Be3 Bc2 d1Q Bb1 Bg8 Rf7 Bf2 Rf5 Bf7 Rf6 Qg1 Bc2 Qf3 Bb1 Qfh1 Ba2 Bd4 Qb4 Bf2 Bd5 Be3 Qb3 Bd4 Na4 Ba7 Nc5 Rb7+
1n1q3r/krP3P1/N1q3Bq/1b1pB3/2Np3n/2p3Pb/3P2BR/bK3BbQ w - - 0 1 illegal: No proof kernel
8/N1bRKR2/3qpp1r/PnbN3B/p1n4R/1qb2P1P/R2bPkr1/2Q1q3 w - - 0 2 illegal: No possible last move, all moves rejected
r2K1nbq/1bNn2p1/BB2pR2/1P4Pb/4P3/1nb1Q1qB/p2Pn1BN/2k5 w - - 0 1 illegal: No proof kernel
4b3/1Ppn2p1/rrPnqnPP/N1Q1q1K1/B2p2N1/2Np4/1kB2b2/3q1N1R w - - 0 2 legal: proof: b4 e5 a4 b5 axb5 h6 d4 f6 g4 Ba6 e4 Bb7 g5 Bc8 g6 exd4 e5 f5 Bg5 hxg5 Ra3 Qe7 Re3 Qd8 Re4 fxe4 Ke2 Ke7 c4 Ke6 f4 a5 h4 d5 h5 a4 b6 e3 Kf3 e2 Kg4 e1Q h6 a3 b7 a2 b5 a1Q c5 Nd7 b8N Qa2 b6 Ra6 Ne2 d3 Qc1 Qe7 Ng3 Qd1+ Be2 d4 f5+ Kd5 Nc3+ Kc4 f6 Kb3 f7 Ngf6+ Kf5 g4 Nf1 g3 e6 g2 Kg5 g1N Nc6 Qd6 Bf3 Ne2 e7 Ng3 e8B Be7 f8N Nf5 Nh7 Qe5 b7 Rb6 Qa3+ Kc2 Qa7 Qae6 Na5 Kb2 Bc6 Rg8 Ba4 Rf8 c6 Bb4 Bf7 Re8 Nd5 Be1 Nc3 Bf2 Bc2 Nc5 Bg8 Bd7 Bf7 Ra8 Ba4 Ng4 Nf6 Be8 Bc2 Nd7 Bg8 Nge3 Ng4 Nd5 Bf7 N5f6 Ba4 Ra6 Qc5 Rb6 Bg8 Raa6 Bf7 Q6d6 Bfb3 Qde6 Bc2 Nd6+
1bnR1qB1/nk1Knp1N/3P1P2/2Q5/Pp1Bq2r/RP2r3/2BBp1bp/4q3 w - - 0 2 legal: proof: e4 a5 c4 b5 h4 bxc4 Nc3 g5 Nd5 gxh4 Nb4 d5 exd5 axb4 Ke2 Kd7 Kf3 c5 Kf4 Kc7 Ke5 h5 d4 c3 f4 c4 a4 c2 g4 h3 f5 c3 f6 h2 g5 h4 b3 h3 g6 Kb7 g7 Nd7+ Kf5 e5 d6 e4 d5 e3 Ra3 e2 Nf3 Ne7+ Kg4 Nb6+ Kf4 Rh4+ Ke5 Qe8 Bf4 c1N g8B c2 d7 Nd3+ Kd6 c1Q d8B Ne5 Qd4 Qe1 Qc5 N5c6 Bd2 Na7 Bg2 Bd7 Rg1 h1Q Ng5 h2 Nh7 Bh3 Be4 Bg2 Bc2 Bh6 Bc7 Qf8 Rf1 Nbc8+ Kd7 Rb8 Be5 Bf4 Bd4 Ra8 Rg1 Bb8 d6 Bf1 Rg5 Qe4 Rh5 Bg2 Ng5 Nb5 Rh8 Ra5 Nh7 Nba7 Qc3 Rg5 Qc5 Re5 Ng5 Rf5 Bh7 Qg7 Rd8 Rf3 Bg8 Qf8 Nh7 Re3
2B3R1/P1PR1QRb/1N1N2q1/1pbr3p/1P4qn/P1p3rk/4p1rn/3KRb2 w - - 0 1 illegal: Other
1Br3B1/Q1nK2P1/2rp1k1n/p7/3P1Pq1/BNpP2p1/3R1Bqb/1r3nNb w - - 0 1 illegal: No proof kernel
2KNNbr1/P2p4/1BR3pP/2r1P1n1/b2Rp2q/kqR3P1/1b2p2Q/1q1n3R w - - 0 1 illegal: No proof kernel
Kqb3r1/P6q/2p1N1pb/N1R1pr1q/2P1B3/3P2RN/1r1NP1p1/nQ1n3k w - - 0 2 legal: proof: f4 a5 g4 h5 b4 axb4 f5 hxg4 Bb2 e5 fxe6 d6 Be5 dxe5 Kf2 Bd7 Ke3 Ke7 Ke4 Kf6 Kd5 Kf5 a4 Kf4 c4 f5 h4 Kg3 e7 b5 e8N b3 h5 b2 h6 b4 a5 f4 h7 f3 a6 b3 a7 f2 Nh3 c6+ Ke4 Nh6 Rg1+ Kh2 Qe1 g3 Qd1 Nf5 Ra6 Qh4+ Kd3 Bc8 Nd6 Nd7 Nb7 Nc5+ Kc3 Rb8 Kb4 Qh5 Ka5 Rg8 Kb6 Ne3 Bg2 f1R h8N g6 d3 Bh6 Ra5 Rf5 Be4 g2 Rf1 Ra8 Rf2 Rb8 Nd2 b1Q Nf7 Qb2 Qa1 Nd1 Nd8 Kh1 Rf3 Qb1 Rb5 b2 Ne6 Nb3 Qa2 Na1 Rc5 Qc2 Ka6 b1Q Rg3 Qcb3 Qc2 Q1b2 Qb1 Qb4 Ra5 Qe7 Rc5 Bd7 Na5 Qh7 Rd5 Rb4 Rb5 Qb3 Kb7 Bc8+ Ka8 Qb2 Rd5 Rb7 Rc5 Qb6 Rd5 Qbc7 Rc5 Rb2 Nab3 Qd6 Na5 Qb8+
1N1rQ3/2qN3n/pppRP2q/1b2N1Pp/1k1r2N1/1n2bb1B/1P2P2R/n5K1 w - - 0 1 illegal: No proof kernel
1rn4N/1b1PpPq1/r1Q1pp2/r5pb/1nN1P2R/K2RRrP1/3B1R2/6kr w - - 1 2 illegal: No possible last move, all moves rejected
B1q1Q3/4p2K/P2p2Nn/8/PR2P1rB/p2PN1bn/2B2prk/1bbnB2n w - - 1 2 illegal: No proof kernel
4N3/kbr1PBbr/1p1P1nR1/r1R2pP1/5nq1/2K2RR1/1P2Qpp1/4bbN1 w - - 0 1 illegal: No possible last move, all moves rejected
1bkbR1R1/p2n3r/4r1p1/2p1R1Qn/bRPP1NK1/1b5q/p4PP1/1B3q1B w - - 1 2 illegal: Other
2b1BRQ1/n1P4p/1N3q2/1n1NR1r1/p2r1qpN/p3PrbP/3P4/K1k1N1r1 w - - 0 1 illegal: No proof kernel
R1n5/bp1pn3/b6r/P3KnB1/kPbNB3/4Qp1R/2RP1Pb1/bbq2Rr1 w - - 0 1 illegal: Other
n4RK1/BR2q1Qr/4p1pp/1n2r3/b6P/Rr2PpP1/1nn1NP1R/1N2k1br w - - 0 4 legal: proof: c4 d5 b4 dxc4 b5 c3 b6 c2 e3 axb6 Qf3 b5 Bc4 bxc4 Qd1 c3 Ke2 Kd7 Kd3 Kc6+ Ke4 Kb5 Ke5 Kc4 d4 c5 a4 b5 h4 f5 a5 f4 d5 e6 a6 b4 d6 g6 a7 f3 d7 h6 Qe1 Kd3 Ra2 c4 Bb2 c1N Ra4 c2 Rh2 b3 Rb4 c3 Ra4 Qe7 d8R+ Nd7+ Kf4 Rh7 Ra1 Na2 Kg4 c1R Nd2 c2 Re8 Nb4 Kf4 Nb6 Ke5 Nf6 Rh3 Bd7 Ra5 Nfd5 Rc5 Nc7 Rb8 Ba4 Rh2 Nb5 Ba1 b2 Ne2 b1R Rc7 Rb3 Bd4 Rcb1 Qd1 c1N Rcb7 Nc2 Re8 Rd8 a8R Rd7 Ra6 Na8 Ba7 Ra1 Qf1 Rc7 Nb1 Rc5+ Kf4 Bg7 Rf8 Bc3 Qh1 Re5 Qe1 Bd4 Qa5 Bc5 Qc7 Bd6 Qd7 Qe8 Qg7 Qe7 Na3 Kd2 Nb1+ Ke1 Ra5 Rh5+ Ke4 Bf4 Ra6 Nd3 Ra5 Bg5 Ra6 Nb2 Ke5 Qd7 Ra5 Bf4+ Kf6 Re5 Ra6 Qd6 Kf7 Qe7+ Kg8 Bg3 Rh3 Bh2 g3 Bg1 Rh2 Qf6 Rc6 Qe7 Rc3 Rb4 Ra3 Rb3 Nd2 Rd1 Nb1 Kf1 Rh3 Bh2 Nf4 Re1 Ng2 Ke2 Nf4+ Kd1 Ne2 Rh1 Rd8+ Ke1 Rf8 Bg1 Rh2 Qg5 Bc5 Qf6 Ba7 Qe7
n2q3n/1Nrr1B1p/1p2KNn1/pPbr1p2/8/3p1P1P/PNQn1N2/Rb3Bk1 w - - 2 4 legal: proof: d4 g5 b4 e5 f3 exd4 Be3 c5 Bf2 g4 Qc1 g3 Na3 gxf2+ Kd2 c4 Qd1 Qf6 Rb1 Qe7 Rb3 Qd8 Rd3 cxd3 e4 Ke7 c4 Kd6 g4 Ke5 h3 Kf4 c5 Kg3 b5 d5 e5 a5 c6 b6 g5 Nh6 g6 Na6 g7 Bc5 g8N Nc7 e6 Ra7 e7 Na8 e8N Rc7 Nc4 Bf5 Be2 Kg2 Ngf6 f1N+ Kc1 d2+ Kb2 d3 Kb3 d4 Qc2 d1R Nb2 d2 Kc4 Rg8 Nd6 Rg5 Kd5 Rg7 Qc4 Bb1 Qc2 Rd7 c7 Kf2 Ng8 f5 c8B Nf7 Ke6 Nh8 Nf6 Rc7 Bc4 Rgd7 Ne2 Kg2 Nc3 Kf2 Rh2+ Kg1 Be2 d3 Rf2 Re1 Nb7 d1N Nce4 Nd2 Bf1 Ne3 Rh2 Rd5 Nf2 Rc1 Bd7 Nec4 Be8 Ne5 Bf7 Neg6 Be2 Rcd7 Rh1+ Kg2 Re1 Kh2 Bf1 Kg1 Qb3 Rc4 Qc3 Bc2 Ra1 Bb1 Qc1 Bd4 Qc3 Rcc7 Qc2 Bc5
6B1/p2P1pb1/b1pn1PRB/4rp2/1KP2p1n/1pB1bB2/kPr2N1N/3q1Q1r w - - 0 1 illegal: No proof kernel
q7/3r2NP/nbbR3r/1B2R3/2b1b2N/r2nPKP1/1kq1P1n1/NN3B1b w - - 0 1 illegal: No possible last move, all moves rejected
Bb1Rb1nk/3qBr1P/2b1R3/2b4P/5B1q/2nKNB2/rP3NrP/n6q w - - 0 1 illegal: Other
2n1B3/2KPNpNP/n7/6PP/2B1RR2/1nbrBb2/k4n2/1qb1Bnqr w - - 0 1 legal: proof: c4 b5 f4 h5 g4 g5 gxh5 d5 a4 bxa4 fxg5 dxc4 d4 e6 d5 e5 Qd4 exd4 Kf2 Ke7 Kg3 Kd6 Kf4 Kc5 Ke5 Kb4 e4 Kb3 h4 a5 d6 c5 h6 a3 h7 a2 d7 a4 Ne2 c3 Rg1 d3 Bg2 c2 Nec3 a3 Na4 d2 Kd5 d1N Be3 c1B Bf1 c4 Nbc3 Nf2 Rg4 Na6 Kc6 Bb4 Nd5 c3 Rf4 c2 Ne7 Bc3 Rb1 a1Q Nc5+ Ka2 b4 Qb2 b5 Bb7+ Kd6 Bc6 Ne6 Qb6 Ng7 Qa1 Rb3 Qb1 Bc4 Qa7 b6 Bd5 Nef5 Ne7 b7 Qd4 b8B Qd1 Bd2 Qg1 Ba7 Rab8 Bd4 Rb5 Be1 Nc8+ Ke5 Rb6 Ne7 Rd6 Rb2+ Ka1 Rb5 a2 Ra5 Kb2 Ra4 a1N Rb4+ Nb3 h5 Re8 Ra4 Ba8 Rb4 Ka2 Ra4+ Ba3 Rb4 c1N Ra4 Ne2 Rb4 Bd2 Be3 Ng3 Ra4 Nf1 Rb4 Rc6 Kd5 Bb7 e5 Bac1 e6 Rd6+ Ke5 Rd3 Re4 Na7 Rf4 Bd5 Kd6 Bc3 Re4 Nc5 Rf4 Bf3+ Kc7 Ra8 Ba6 Rb8 Rbe4 Nc8 Bc4 Rb5 Nef5 Ra5 e7 Rb5 e8B Na6+ Kc6 Rbd5 Ne7 Rd1 Kb7 R5d3 Rh4 Qg3 B1d2 Nh2 Rf4 Rh1 Be1 Qg1 Kc6 Nf1 Kb7 Nc5+ Kc7 Na6+
5r1k/4nqr1/5P1P/P1p1Nn2/r1Pn1B1n/qn1R1B1n/1N5K/3NRNn1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 b5 d5 b6 e3 Qf3 axb6 Be2 b5 Qe4 dxe4 Bf1 b4 g4 h5 g5 g6 Be2 Bf5 Bf1 Bh6 gxh6 Bc8 h3 g5 Ba6 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd6 Bb2 Qd3 Bc1 Qd8 c4 Kf7 a4 b5 d4 c5 f4 e5 d5 g2 g5 h4 f5 h3 f6 h2 d6 b3 d7 b4 Ra3 b2 Be2 b3 Bd1 e2 Kf2 e1N Kg3 e3 Bd2 e2 Ra1 e4 Be3 Nd3 Nh3 e1N Ra3 g1N Bc1 e3 Bf3 e2 Ra1 Ng2 Bc6 e1R Bd2 Qc7+ Nf4 Nf2 Be4 Nfh3 Nc3 b1N Ra3 b2 Bf3 Ne7 d8N+ Kg8 g6 Nbc6 g7 Nh4 Nf7 Nd4 Nd1 Re2 Bc1 Nd2 Rd3 b1Q Ne5 Qa1 a5 N2b3 Be3 Ra2 Bd2 Kh7 g8N Ra7 Be3 Ra4 Bd2 Nd5 Ne7 Rf8 Nf5 Qf7 Nfe3 Kh8 Nf1 Ne7 Bc1 Qa3 Bd2 Ng5 Bc1 N1h3 Rg1 h1N+ Kh2 Ng3 Nde3 Nge6 Rc3 Qg7 Nfd3 Nec6 Nb2 Nge2 Nd2 Ndf5 Ned1 Ne6d4 Re1 Neg1 Rd3 Qg6 Nf1 Rg7 Bd2 Qf7 Bf4 Nce7
3K2br/2B4n/b1NR1pq1/Bk2P3/1BnB1br1/PrPpR3/2r1q2P/4N3 w - - 0 1 illegal: No proof kernel
n2rq3/k1B1R3/1bp3n1/1rr3rP/4n1P1/PRqb1pR1/RBNP3N/3K4 w - - 0 1 legal: proof: f4 a5 c4 h5 b4 axb4 g3 g5 Bh3 e5 fxe5 d5 cxd5 h4 Bg2 h3 Qb3 hxg2 Qc4 Ra5 Qd4 Ra8 Qf4 gxf4 h4 Kd7 e4 b5 d6 Kc6 h5 Kb7 a3 f5 d7 f3 e6 f4 e7 f2+ Ke2 f1N e8R c6 e5 b3 e6 b2 e7 b4 Nc3 b1Q Nd5 b3 Nf3 g1R Nb4 b2 Rh4 Qd3+ Ke1 b1R Rh1 Ka7 Na6 Rb5 Rb1 Qc3 Nh2 f3 Nc7 Na6 Nd5 Nc7 Bb2 Ba6 Ne3 Bg7 Nc2 Bd4 Rf8 Qe8 d8B Bb6 Kd1 Rb8 Rf4 Rc5 Rg4 Na8 Bc7 Bd3 Ra1 Rd8 Ra2 Rdd5 Rb4 Rg5 g4 Ng3+ Ne1 Ne4 Rb3 Qd8 e8R Ne7 Be5 Qb8 Bc7 Ng6 Re7 Rf1 Rg1 Rd8 Rg2 Qc8 Rg3 Qd7 Rg2 Qe8 Rg1 Rf2 Rg3 Re2 Nf1 Nd6 Nc2 Ree5 Nh2 Ne4 Rg7 Rb5 Re7 Rec5
5b2/3B1Pr1/1R1N1RRr/4pp2/qnNbPbnP/1P1R1b1K/2k3r1/B2r4 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 f4 e6 f5 Rh3 f6 Rh6 Qc2 Rh8 Qf5 exf5 Ra6 Qe7 Rd6 Qd8 Re6+ fxe6 Kf2 Kf7 Kg2 g5 h4 a5 d4 c5 e3 c4 b3 a4 b6 c3 b7 g3 d6 c2 d7 g4 d5 a3 d6 e5 Ne2 Ke6 f7 Kd5 Rh3 Ke4 Ng1 a2 Na3 a1B Ne2 Kd3 Bb2 c1B Nc4 Nf6 Ba3 Rh6 Nc3+ Kc2 Bb2 Qa5 d8R Nc6 b8R Bb7 d7 Qa4 Ne4 Nb4 Rdc8 Ra5 d8R Rd5 Rc6 Rd1 Rdd6 Ba8 Rbb6 Bd2 Bc1 Bd4 Bb2 Bc1 Ba1 Bd2 Kh1 g2+ Kh2 g1R Rf3 g3+ Kh3 Ng4 Rg6 g2 Rcf6 Bd5 Ned6 Bc1 Rg3 Bf3 e4 Bf4 Na5 Rd2 Bb5 Rgd1 Nac4 g1R Bc6 Rdg2 Bd7 Be2 Rd3 Bf3 Re6 Ne3 Rgf6 Rg7 Rg6 Rg2 Ref6 Ng4
2bNr3/rPn1bb2/5NR1/N2B1Pp1/1kn3PN/1B3p1R/b2b2Pn/n3K3 w - - 0 1 legal: proof: f4 b5 a4 c5 axb5 e5 d4 Qg5 h3 Qg4 hxg4 cxd4 e4 f6 f5 Bc5 Bf4 Ba3 Qe2 exf4 e5 Bd6 e6 Bf8 Qe5 fxe5 c3 Ke7 b4 Kd6 b6 g5 b7 h5 e7 a5 b5 Kc5 e8N d5 b6 h4 Na3 f3 Ng7 a4 Bc4 d3 Ne2 d2+ Kf2 d1B Rh2 h3 Nd4 e4 Ba2 e3+ Kf1 e2+ Ke1 Nc6 b8N Ra7 b7 Bb3 Rh1 h2 Nac2 a3 Ne3 Ne5 Ndc6 d4 Nh5 d3 Nc4 Be7 Nd8 Nf6 Rd1 Re8 Na5 Bf7 Nbc6 Nd5 Bb3 Nc4 Ne5 Nc7 Ng6 Kb5 Nh4 d2+ Kf2 e1B+ Kf1 Bg3 Re1 Bgd6 Re6 Bf4 Rg6 Be3 Nf6 d1B Ba2 Bc2 Ke1 Bb1 Bb3 Bf4 Rg1 h1N Rf1 Ng3 Rh1 Ne3 Rh3 Ngf1 Bd5 Nh2 Bb3 Bd7 Bd5 a2 c4+ Kb4 c5 a1N c6 Ne6 c7 Ba2 Bb3 Nc4 c8B Nc7 Rg7 Bc1 Rg6 Bde6 Bd7 Be3 Bc6 Bc8 Bd5 Bd2+
1n1k1r2/B5bN/pRB1R2n/4PB1p/rPb1B3/2b5/PpN3P1/1bnK3q w - - 0 1 legal: proof: h4 e5 b4 g5 hxg5 d5 f4 a6 c3 b6 Qb3 b5 Qc4 dxc4 Na3 Bf5 Rb1 Bc8 Rb3 cxb3 c4 bxc4 fxe5 Bh3 Nc2 Bd7 Na3 Bc8 d4 c5 e4 f5 d5 b2 e6 c3 d6 c2 e7 c4 e5 c3 g6 f4 g7 f3 Nh3 Nh6 g8B Bg7 Bd3 Bf5 Be3 c1N Bd5 c2 Ba7 f2+ Kd2 f1B B5e4 Qb6 Ng5 Qg1 Rh3 Kd7 e8B+ Kd8 B8c6 Qh1 d7 Bg6 Bf5 Be2 Bde4 Bc4 Rd3 Rf8 Rd6 Rf7 Bh3 Rf3 Re6 Re3 Bhf5 Rb3 Nb5 Ra3 Nd4 Ra5 Ne2 Ra4 Nd4 Nd3 Ke2 c1B Nc2 Bd2 Be3 Nf7 Ba7 h5 Nh7 Be1 Kd1 Nh6 Bh3 Nc1 Bg4 Kc7 d8R Bf5 Rd7+ Kc8 Rb7 Kd8 Bed5 Be4 Bf5 Bed3 Bde4 Bc3+ Bg1 Ra7 Rb5 Rf7 Rb6 Rf8 Rb5 Qh4 Ba7 Qh2 Rb6 Qh4 Nd4 Bb1 Nc2 Qh1+
3qN3/pPNrbP1R/b3RbpB/4KnbP/1r4Nr/6pk/4Pn2/4N2B w - - 0 1 illegal: No possible last move, all moves rejected
BB6/1qr1PPpb/r1B1N3/3p4/rNr1R1PB/2nKpk1P/2p2nb1/6R1 w - - 0 1 legal: proof: c4 e5 e4 h5 g4 f5 b4 h4 Qf3 a6 b5 axb5 Qg3 bxc4 d3 hxg3 exf5 e4 d4 c3 Nh3 Bd6 Ng1 Be5 dxe5 Qf6 Bh3 Qh4 Bf1 Qd8 Ke2 Ke7 a4 c5 f4 b5 f6+ Ke6 h3 Kd5 f5 c4 f7 c2 f8B b4 e6 g2 a5 b3 f6 e3 f7 Ke4 a6 b2 a7 c3 Ra5 Qc7 Ra6 Qb7 Rb6 Na6 Rh2 Nb4 Rh1 Nd5 Na3 b1B Bd2 c1R Be1 Rh6 Bd6 Ngf6 Nf3 g1R Bb8 d6 e7 Kf4 Nc2 Ne4 Nb4 Nf2 Nd2 Bh7 Nf3 Bd7 Bg2 Bc6 Nd4 Rc2+ Bd2 Rgc1 Rg1 Re6 Ra6 Re4 Ra5 Ra2 Rb5 Ra6 Be1 Kg3 Ne6 Rc4 Nd8 c2 Ne6 Rca1 Ra5 Rd1 Ra4 Rdd4 Bc7 Rc8 Bb8 Rc7 a8B Nb6 Ra5 Na4 Re5 Rf4 Bh1+ Bg2 Re4 Rf5 Bc3 Rfa5 Bf6 Nc3+ Ke1 Nb5 Ke2 Ra4 Bg5 Nd1 Kd3 Kf3 Bf6 Nbc3 Bh4 Bg6 Na2 Bh7 Bg5 Kf2 Nb4 Bf3 Bf6 Bg8 Re5 Bd5 Be4 Bh7 Bg6 Bg2 Be4 Bg8 Bd5 Bh7+ Re4 Kf3 Bc6 d5 Bh4 Nf2+
K1RN3N/2p1rPN1/rbP2p2/k1B3P1/p2ppP1p/r2brR2/N3n1B1/8 w - - 1 2 legal: proof: d4 b5 a4 bxa4 d5 e6 e4 exd5 e5 Bb7 Nf3 Ba6 Ng1 Bc8 g4 Nc6 Qf3 Nb8 Qe4 dxe4 h4 Qf6 g5 Ke7 g6 Qg5 Bb5 f6 Nh3 Nc6 Ng1 Nd8 Bf1 Nf7 gxf7 Qg4 Nf3 g5 Ng1 Qf5 Bd3 g4 Bf1 Qg5 hxg5 Bh6 Na3 Bg7 Nb1 Bf8 Kd2 Kd8 Kc3 a5 Kd4 d5 f4 h5 b4 g3 c4 a3 c5 h4 e6 a2 b5 g2 e7+ Kd7 e8N Bh6 b6 Kc6 b7 Bd7 Nf3 g1R Nc3 Bf8 Bg2 Ne7 Be3 Ra6 Ng7 Re1 b8N+ Kb7 Bf2 Bb5 Nc6 Bd3 Nfe5 Re3 Rh3 a4 Rf3 Rg8 Rd1 a1R Ng6 Ra3 Nd8+ Ka7 c6 Kb6 Na2 Ka5 Kc5 Rh8 Rb1 Rg8 Rb8 Nf5+ Ne7 Nd4 Rc8 Ne2 Nh5 Bg7 Ng6 Re8 Nh8 Re7 Bg1 Bf8 Ng7 Ra8 Bf2 Ka6 Be1 d4 Bb4 Bb1 Kc4 Bc2 Bc5 Ka5 Kd5 Ra6 Kc4 Re8 Kd5 Be7 Ke6 Bd3 Kd7 Bf8 Rb8 Bd6 Kc8 Re7 Kb7 Kb5 Bb4 Bc5 Rc8 Ba7 Bc5 Ka5 Ka8 Bb6+
n2r1b2/1P1Np1nb/k1n2Pq1/2B1PRP1/1b5K/3q1b2/B2q3b/1RRRr1N1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 h4 gxh4 axb5 c5 e5 cxd4 Qd3 Bh6 Qf3 Bf8 Qe4 fxe4 b4 a5 c4 h5 g4 d5 f4 Kd7 Kf2 Kc7 b6+ Kb7 f5 e3+ Kg2 h3+ Kg3 e2 b5 e1B+ Kf4 h2 Kg5 d3 f6 h4 c5 d2 Ba3 d1Q Bg2 a4 Bf3 h3 Be2 d4 Bc4 d3 Nd2 Bf5 Bb2 a3 Nf1 a2 Rc1 a1B Ne3 d2 Be2 Bh7 Rb1 Qd3 Bc3 Nc6 Bd4 Nh6 Bf1 Bg3 Be2 Rd8 Nc4 Nf5 Rc1 Qe1 Rd1 Bc3 Kh5 Ba5 g5 Bb4 Bf3 Qee3 Bd5 Ng7+ Kg4 Bf4 Kh4 Qg6 Rf1 d1N Be6 Nc3 Bg8 Ka8 b7+ Ka7 b8R Nd5 Nb6 Qed3 Nd7 Nc7 b6+ Ka6 Ba2 Na8 b7 Bfd2 Rf5 Bf4 Ne2 Qd2 Rb1 h1Q Ng1 h2 Bf2 Qhd5 Bd4 Re8 Rd8 h1B Bf2 Q5d3 Bd4 Na5 c6 Bf3 c7 Nc6 c8R Bh2 Be3 Na7 Rcc1 Nc6 Rc8 Rd8 Rd1 Na5 Rcc1 Nc6 Nb6 Rd5 Nd7 Rd4+ Kh3 Re4 Bc5 Re1 Kh4 Ne6 Nb6 Bh6 Bd6 Rd8 Bc5 Bf8 Nd7 Ng7
2n5/4p1r1/BkrP1Nn1/r3P2P/RP4q1/1N1r2b1/NqqB1b2/n1R1NbK1 w - - 0 1 illegal: No possible last move, all moves rejected
2Nbn3/1Pn3bq/q1R2Bn1/r1N1r1pP/5bBp/K1k2b2/3RR1PP/4R1q1 w - - 1 2 illegal: Other
7r/NbnRp3/2B1nq1b/1NbpKR2/Pb4qP/N2PPr2/2Nk2r1/1q1B4 w - - 0 2 legal: proof: c4 a5 b4 axb4 g4 f5 gxf5 c5 Ba3 b3 Bb4 cxb4 Qc1 h6 Qc3 Nf6 Qe3 Ng8 Qg5 hxg5 a4 Kf7 h4 Kf6 f4 d5 Kf2 b5 Kg3 b2 d3 b3 c5 g4 c6 g5 c7 b4 Nd2 b1Q Bh3 b2 Rh2 b3 Ra3 Qa1 Rf2 b1R Ngf3 b2 Rb3 Nc6 Ne1 Qd7 Nc2 Bb7 c8B Nd8 Nc4 Bh6 N4a3 Rf1 Rb4 Qe6 Bd7 b1Q Bc6 Qe4 Bg2 Ne6 Bf3 Rf8 Rb2 Rd1 Rb6 Rd2 Ra6 Qed4 Ra8 Qdb4 Rd8 Qc4 Rd7 Rf7 Kg2 g3 Bh5 Qac3 Kf3 g2 Ke3 g1B Bf3 Kg7 f6+ Kg6 Bg4 Rf8 f7 Nf6 Bf3 Ne8 f5+ Kf6 Bg4 Ke5 f6 N8c7 Bh5 Rc8 f8N Qg4 f7 Bh2 Rf1 Bg3 Rf6 Be1 Rf2 Qgb4 Bf3 Qg4 Ng6+ Kf5 f8N Qf6 Ne5 Re8 Nfg6 Ref8 Nec4 Rf7 Nb5 Rff8 N2a3 Rc2 Nge5 Bb4 Rf1 Ra2 Nc2 Rf7 Kf2 Kf4 N4a3 Qh3 Na7 g4 N3b5 Rb2 Nc4 g3+ Kg1 g2 Kf2 Qhf5 N4a3 g1B+ Kg2 Bgc5 Kh2 Rg7 Rf2 Rg3 Rf1 Qg4 e3+ Kf5 Be2+ Rf3 Bd1 Qh5 Rf2 Kg4 Kg2 Qhf5 Kf1 Kg3 Ke2 Qg4 Rf1 Rf5+ Rf3+ Kh2 Kf2 Qg3+ Ke2 Kg1 Rf4 Qgg7 Kf3 Kf1 Ncd4 Rh2 Ndc2 Rg2 Na1 Ke1 N1c2+ Kd2 Nbd4 Qfg6 Ndb5 Rf7 Rf6 Ng5+ Kf4 Nge6+ Ke5 Qg4 Nbd4 Q7g6 Ndb5 Q6g5+ Rf5 Qg6 Rg5 Rf3 Rf5 Qf6+
q1kB4/b1P2b1B/1b3NR1/P2r1NpK/Nnnq2P1/pR6/1PbN1p2/6br w - - 0 1 illegal: No proof kernel
3r3b/5q1B/b1RnPRN1/k7/2Pr1P1p/bpqpKR1P/4r2B/1nNR3r w - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 a4 exd4 Qd2 f5 axb5 fxg4 b6 Nc6 b5 Nb8 Qb4 cxb4 Kd2 a5 f4 d5 c4 Kd7 e4 h5 e5 g5 b7 Kc7 e6 Kb6 h3 d3 Bg2 b3 Na3 d4 Nc2 h4 Bb2 g3 Be4 g2 Bf5 a4 Ba3 g4 Bc5+ Ka5 b6 a3 Re1 g3 Bg6 a2 Ra1 Qf6 Be8 Na6 b8R Nb4 b7 Nh6 Bd7 Qf7 Ne1 Nf5 Nc2 Nd5 Nf3 g1R Rf1 a1Q Nb4 g2 Ne5 Nd6 Be8 Nc3 Rf3 Rc1 Re1 g1B Rd1 Be7 Bc6 Rd8 Na2 Ra6 Ng6 Nb1+ Ke1 d2+ Ke2 Bf2 Be4 Qc3 Bd3 Rc2 Nc1 Be1 Bf5 d3+ Ke3 Bf6 Ra8 Bh8 b8R Ra7 Rb4 Ba6 Rb6 Rc7 Bd4 Rc5 Rc6 Rd5 Bc5 Rd4 Ra7 Qe8 Rf7 Qd7 Rf6 Qf7 Ne7 Rb2 Bh7 Rc2 Na2 Rb2 Ng6 Rc2 Rc1 d1R Ba7 Rh2 Bc5 Rdd2 Rd1 Rh1 Nc1 Rdh2 Rg3 Qa1 Rf3 Bb4 Ba7 Qc3 Bc5 Ba3 Bb4+ Ka4 Ba5 Qc2 Be1 Qc3 Bg3 Rd2 Bh2 Ka5 Ne7 Rb2 Ng6 Re2+
4n3/p2B1N2/Pb2KBqr/NbkrBpqP/5p2/2P1R1n1/R2BP1b1/2nb4 w - - 0 1 legal: proof: g4 d5 f4 c5 b4 cxb4 c3 h5 gxh5 e5 Nf3 exf4 Qb3 d4 Qc2 d3 Ng1 dxc2 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 g5 a4 b5 h4 g4 a5 g3 d3 g2 h6 b3 h7 b2 a6 b4 h5 b3 Ra2 Bd7 Bd2 c1N Nh3 g1Q+ Be3 Qdg5 Bg2 Bb5 Bc6 Nf6 Na3 b1B Bd7 b2 Rh2 Q1g4 Bd2 Ne4 Rh1 Qg6 Ng5 Bc2 Rh3 b1B Re3 Bd1 Nc4+ Kc7 Ke5 Ng3 d4 Be4 d5 Bg2 Nf7 Bc5 Rf3 Bb6 Na5 Q4g5 Re3 Rd8 Bc8 Rd6 h8B Rd8 Bf6 Nd7+ Ke6 Rh8 Ra1 Rh6 Ra2 Bd4 d6+ Kb6 Ne5 Kc5 Nf7 Nb6 d7 Nc4 d8B Nd6 Bc7 Ne8 Bd7 Rd8 Bc6 Rd5 Bd7 Be5 Bb8 Bd6 Bc7 Be7 Bb8 Bd8 Be5 Bb6
3b2n1/1b3pP1/R1K1p1Pn/2NRP1r1/B2p1q2/1N3kq1/1pPR1r2/q1BR3b w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 f5 cxd4 Qd2 g6 Qf4 Ra5 fxg6 Ra7 g5 Ra8 Qg4 hxg4 Kf2 d5 h4 Kd7 a4 Kd6 e4 Ke5 h5 b5 g7 e6 g6 g3+ Kf3 b3 a5 d3 a6 d2 h6 d1B+ Ne2 b4 a7 g2 h7 g1Q Be3 b2 Bb6 b3 Nc3 b1Q Na4 b2 Be3 d4 Rh2 Nh6 Bc1 Qdg5 Nc5 Nc6 Rh5 Rb8 a8R Be7 R8a6 Bd8 Rh2 Ne7 Rf2 Re8 h8R Rb5 Rh2 Neg8 Rg2 Nf5 Rh5 Nfh6 Rf2 Qa2 Rb1 Qa1 Rfh2 Kf6 Bg2 Qh4 Rd5 Qge1 Bf1 Qf4+ Kg2 Rb3 Bd2 Rg3+ Kh1 Ne7 Nc1 Ng4 N1b3 Bf3+ Rg2 Rg8 Rd1 Rh8+ Kg1 Rh7 e5+ Kg5 Bc1 Qc3 Be2 Ng8 Kf1 Rh2 Bb5 N4h6 Ba4 Kg4 Rgd2 Bh1+ Ke1 Rh5 Ke2 Rg5 Be8 Rh3 Bd7 Qcg3 Ba4 Bf3+ Kd3 Rh2 Kc4 Rf2 Kb5 Bh1 Kc6 Kf3 Rd6 Qf5 Rd7 Qff4 Rd5 Bb7+
rB3b1B/NKqk4/3p1PBB/5p2/2NP4/R1Pb2pp/Rp1rq1pP/4n2b w - - 0 1 illegal: No proof kernel
2k2BBb/3rp3/K1p1n2p/2Bn1P1r/n5RP/N1Pp1r1b/2bPb3/3NBR1q w - - 0 1 illegal: Other
k1BR2N1/2p3Bn/3r1P2/2B1bpnK/p1Pp1P1n/4nr1q/2bPr1N1/Bq5R w - - 0 1 illegal: Other
1Q1b2Q1/2r1P1PR/b1Q5/bb2R3/1b4NK/nb5p/2b1PPR1/2nqB1rk w - - 0 1 legal: proof: d4 b5 b4 g5 a4 e5 axb5 c6 dxe5 Ne7 h4 gxh4 b6 Nf5 b7 Nh6 b5 Ng8 g4 f5 g5 Bb4+ Nc3 Na6 b6 Nb8 Bh3 Bf8 Nb5 cxb5 Bg4 fxg4 c4 Ke7 c5 Ke6 c6 Kf5 e6 d5 g6 h5 g7 a5 c7 b4 Rb1 h3 Qb3 h2 Be3 a4 Bc5 h4 Rb2 a3 Qc4 d4 Bd6 a2 Rb1 a1B Bc5 b3 Qc1 g3 Qd1 Kg4 Qc1 d3 Qc2 d2+ Kf1 d1B Kg2 b2 Nh3 Nc6 b8Q Ne5 b7 Nc4 Ng5 Ra7 Qd2 Ne7 Qd7 Ng6 Nf3 Nf4+ Kf1 Kh3 Qa4 g2+ Ke1 Na3 Qe8 Bb3 Nd4 Nd3+ Kd2 Nc1 Bb6 Bb4+ Ke3 Qd7 Rg1 h1B Kf3 Kh2 Nf5 Qd1 Kg4 h3 e7 Rh6 Qb5 Rg6+ Kh4 Bd7 Qa4 Bb5 Qg8 Ba6 c8R Rg5 b8Q+ Rc7 Re1 g1B Ba5 Bc6 Nh6 Bcb5 Ng4+ Kg2 Rf8 Bh2 Rf6 Bf4 Rh6 Be3 Rh1 Bb6 Rh2+ Kg1 Rg2+ Kh1 Rh7 Rg6 Rg3 Rg5 Re3 Rg6 Re5 Rg5 Nh6 Rg1 Ng4 Rb7 Rf5 Bd8 Rc5 Rc7 Re5 Nd3 Rc1 b1B Rc3 Nc1 Rg3 B1c2 Rg2 Bd6 Bd2 Bc3 Be1 Ba5 Qe4 Bc5 Qc6 Bcb4
1n1n3Q/K1P1p1P1/r2q1P2/2n4B/k1PQn3/r2bRbbN/1R4Rr/r1Q5 w - - 0 1 legal: proof: d4 b5 g4 g5 a4 f5 axb5 c6 f4 c5 e4 fxe4 dxc5 Kf7 f5 Ke8 Bf4 h6 Nd2 gxf4 Ndf3 h5 g5 Bh6 Ne5 Bf8 Ng4 hxg4 Ke2 a5 b4 d5 h4 Kd7 f6 d4 b6 Kc6 c3 Kb5 c6 g3 b7 g2 c7 a4 g6 f3+ Kf2+ d3 Ke3 a3 h5 f2 h6 a2 h7 Bg4 Qf3 Ra3 c4+ Ka4 b5 d2+ Bd3 f1B b6 Bh6+ Qf4 Bf3 g7 Qd6 Nh3 g1R Re1 a1R Rh2 B1e2 Rg2 d1N+ Kd2 Bf1 Re3 Nf2 Qe5 B1e2 Qd4 Bf4 Kc2 Bf1 Be2 Nh6 Bd1 Nf7 Be2 Re8 h8Q Rh1 Qh6 Bg3 Qf4 Nc6 b8Q Rh2 b7 Nfd8 Qc8 Rg8 b8R Rh8 Rbb3 Nb8 Kc3 Rh5 Qh6 Ra5 Qg5 Ra6 Bd1 Nb7 Qh8 Bd3 Be2 R3a2 Rb2 Nd8 Qdd5 Ra3+ Kd4 Qe6 Kc5 Qd7 Qd4 Qe6 Bf1 Qd7 Ree2 e3 Re1 e2 Qc1 Ra7 Kb6 Ne4 Rd1 e1N Be2 Nf7 Rdd2 Ra6+ Kb7 Qd6 Bd1+ Bc2 Rde2 Nd3 Re3 Ndc5+ Kc8 Nb3 Kb7 Bd3 Be2 Rb6+ Ka8 Nd8 Ka7 Nbc5 Bf1 Bd1 Be2 Rc6 Bg4 Bf3 Bh5 Ra6+
3bQR1Q/2q1r3/n1Q1Pr1P/2pb1rp1/1PR5/n1b1R1B1/K1n1P1N1/3kq3 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 d5 a4 g6 axb5 Qe7 c4 dxc4 g5 Qd8 Nc3 Na6 Bh3 Nb8 Bf5 gxf5 g6 h6 Ne4 Bb7 Ng5 hxg5 Nf3 Ba6 Ng1 Bc8 d4 Ke7 Kd2 Ke6 Kc2 Kd5 Kb1 Ke4 b4 a5 h4 c5 d5 f4 h5 f5 h6 a4 d6 f3 d7 a3 g7 a2+ Kb2 c3+ Kb3 f2 b6 f1N b7 f4 e6 c2 Qd2 f3 Qc3 f2 Rh3 Be7 Qe1 Ra7 Rg3 Na6 b8R Nd2+ Kb2 f1R Qf2 Nf6 g8Q Ng4 Nh3 Nb1 Ra8 Qc7 d8Q Bb7 Rb3 Bd5 Qh2 Ne3 Qf2 Na3 Qge8 Rf8 Nf4 Rf6 Ng2 Rf5 Rb1 a1B+ Ka2 Bc3 Qf3+ Kd4 Bd2 c1Q Be1 Nec2 Bg3 Qe1 Rc1 Rf2 Qc8 Bd8 Qh8+ Rf6 Qh5 Rf5 Q5e8 Rb7 Qcd7 Ke4 Qc6 Ra7 Nh4 Ke3 Ng2+ Kd2 Rc8 Ne3 Rc2+ Kd1 Rb8 Bd2 Rc4 Nec2 Re3 Bc3 Qed7 Be7 Rf8 Bd8 Qc8 Qb6 Qe8 Re7 Qcc6 Qc7
2Qr4/3rrP2/1b1B3P/3rnNP1/2QppB1b/2R2Bbk/2KPb3/4qnQ1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 f4 Kf7 f5 Ke8 g4 Na6 Nc3 Nb8 Nce2 h6 Nf4 gxf4 g5 h5 Ra3 Bb7 Rg3 Bc8 Rg4 hxg4 h4 Kf7 c4 a5 f6 Ke6 f7 Kf5 b6 d5 b7 e5 h5 g3 c6 e3 h6 a4 c7 f3 c5 Kg4 c6 e2 Bg2 a3 Bf1 a2 Qc2 a1R Nh3 g2 Rg1 Nf6 Qb3 R1a5 Qd3 Bd6 Qc4+ Ne4 Nf4 Qe8 Qb5 Ng3 Ba3 R8a7 Nh3 Nd7 b8B Ba6 Rh1 g1B c8Q Bb6 c7 d4 Bg2 Nf1 Qb1 Rd5 Nf4 Qe6 Rh5 Rd8 Ng6 Bb5 Nh4 Bc4 Bh1 Kh3 Qa6 Qe8 c8Q Bdc7 Bd6 Qe7 Kf2 e1B+ Kg1 Qe6 Nf5+ Bh4 Qd1 Be2 Qc4 Qf6 Qb1 e4 Bf4 Ne5 Qe1 R5d7 Qb1 Ng3 Kf2 Qd6 Qg1 Nf1+ Bg3 Qa3 Ke1 Bd6 Bc7 Re7 Bb8 Rad7 Bc7 Qe3 Bb8 Bd3+ Kd1 f2 Bf3 Bdc7 Kc1 Qe1+ Kb2 Be2 Bf4 Nh2 Kc2 f1R Bh1 Bd6 Bc7 Rf3 Bb8 Rb3 Bf3 Nf1 Bc7 Rb5 Bb8 Bb4 Bd6 Rd5 Bh1 Nc6 Bde5 Bd6 Bg3 Kg4 Bg2 Bdc7 Bh2 Bf2 Rh3 Bh4 Rc3 Bd6 Bf3+ Kh3 Bhg3 Bdc5 Bc7 Bd6 Bh2 Bf4 Bd6 Ne5 Bg3 Be3 Bh2 Bef2 Bf4 Bfg3
4n1Q1/1r2kb2/n1b2n2/q5n1/2P1PpKR/q4PBN/1RQPpR1b/3Q1q2 w - - 0 1 legal: proof: b4 b5 h4 c5 a4 g5 Bb2 gxh4 Bc1 a5 Nc3 e5 Nd5 e4 Nf4 e3 bxc5 b4 f3 d5 Nd3 d4 Nf2 Ra6 Nfh3 Rb6 Nf2 Rb5 axb5 Nc6 Bb2 Bg7 Qc1 Nb8 Kd1 Bh6 Qb1 Na6 Kc1 Bf8 Ba3 Nb8 Kb2 Qd6 Qd1 Qd8 Kb1 exf2 e3 d3 Be2 dxe2 Bb2 Bd7 Bc1 Bc8 c4 f1Q Kc2 h5 g4 f5 g5 b3+ Kc3 a4 b6 a3 c6 a2 c7 h3 b7 b2 g6 b1B g7 h2 Nh3 h4 Qc2 Rh7 Qd1 Nf6 g8R Be6 c8Q Bf7 Ng1 Be4 Rg2 Bd6 Kd4 Ke7 Rg3 Ne8 Rg2 Na6 b8Q Qa5 Qb1 Bc6 e4 Bg3 Bb2 f4 Qbc1 Rg7 Rb1 a1Q Rf2 Q1a3 Nh3 Rh7 Rg1 h1N Qcc2 Bh2 Rg4 Ng3 Bc3 Rg7 Rb2 Nh5 Qa8 Nhf6 Qb8 Bb5 Ke5 Rh7 Kf5 Bc6+ Be5 Rg7 Ng5 h3 Rh4 Bg1 Qa8 h2 Nh3 h1N Qb8 Bh2 Qa8 Bb5 Bd4 Ba4+ Qd5 Bc6 Ba7 Nh7 Bd4 Ng5 Kg4 Ng3 Ba7 Nh5 Bb6 Bg6 Qg8 Bf7 Rg2 Rg6 Bf2 Rd6 Bg3 Rd7 Rf2 Ra7 Qcb1 Rb7 Qbc2 Nhf6+
qQ3b2/2BrPB1b/qP2p3/QR1PpnK1/1n2b3/1p6/1Pknq3/Q3BN2 w - - 0 1 illegal: No proof kernel
2r4k/qp2NQ2/Pb2p2P/4KR2/R5R1/1P2Ppn1/3QrQ2/1rrb1Bqr w - - 1 2 legal: proof: f4 a5 d4 g5 b3 gxf4 Bb2 a4 c4 d5 cxd5 a3 Qc2 axb2 Qc1 Na6 Qd1 Nb8 g4 c5 Nd2 c4 Ne4 Na6 Ng5 Nc5 dxc5 Nf6 Ne4 Ng8 g5 h6 Nf2 h5 Ng4 hxg4 Kd2 b1R Kc3 f5 Kd4 Kf7 a4 Kg7 h4 g3 a5 g2 a6 e6 e3 c3 h5 c2 c6 c1R c7 f3 g6 f2 d6 f4 d7 f3 Bb5 f1R Qe2 Qe7 d8Q Rfe1 Qf2 Red1+ Ke5 Rd2 Ra4 Nh6 Ne2 g1Q Ng3 Bd7 c8R Nf5 Rcc4 Rc8 Rg4 Rdc2 Bd3 Bb5 Bf1 Qc5+ Qd5 Kg8 g7 Qa7 Qd4 Be2 Qb4 Nh6 Nf5 Bc5 Ne7+ Kh7 Rh2 Bb6 Qd6 Nf5 g8Q+ Kh6 Rh1 Bd1 Qf7 Re2 Qd2 Ng3 Rgf4 Rb8 Rhh4 Rbc8 Rf5 Rh7 Qe8 Kg7 Qf7+ Kh8 Rhe4 Rg7 Rg4 Rg5 h6 Rh5 Bg2 Rh3 Bf1 Rh1
1Bb5/3r1k1P/1prQ4/1q3NQq/pQ2K1p1/1PR1r1NP/P2q4/2q1n1bN w - - 0 2 legal: proof: f4 c5 c4 h5 b3 d5 cxd5 e5 Na3 exf4 Rb1 c4 Rb2 c3 h3 cxb2 g3 Nc6 Bg2 Nce7 Bf3 Ng6 Bg4 Nh4 gxh4 hxg4 Kf2 b1Q d4 f5 e4 a5 h5 g5 e5 b6 d6 a4 d7+ Kf7 d5 g3+ Kf3 g2 h6 Ra7 d6 Ne7 h7 Nd5 Nc2 Ne3 Nd4 Nc2 Nge2 g1Q Qd2 Qd1 Qb4 Qa1 Be3 Qac1 Rg1 Be7 Rg3 Re8 Bg1 Qdd2 Bh2 Qc7 d8Q Qc5 d7 g4+ Kf2 Ne1 Rc3 Bd6 Qg5 f3 d8Q f4 Bg3 Qa5 Nf5 Bc5+ Qdd4 Rd7 e6+ Kf8 e7+ Kf7 Bh2 Qb5 Ng3 Qa5 Kf1 f2 Qd6 Be3 Nh1 Qe5 Qh4 Qh5 Neg3 Nc2+ Kg2 f1R+ Nf2 Rd1 Qg5 Ne1+ Kf1 f3 Nfh1 Rg8 e8N f2 Ng7 Re8 N7f5 Rc7 Ne2 Rc6 Bf4 Bc5 Neg3 Re2 Qd3 Re4 Bb8 Re3 Qd6 Nd3+ Kg2 Ne1+ Kh2 f1Q+ Nf2 Qd4 Nfh1 Qb5 Kg1 Qd5 Kf2 Qdd2+ Ne2 Re6+ Kg3 Re3+ Kf4 Rf3+ Ke4 Bg1 Neg3 Re3+ Kf4 Qh2 Qc7+ Rd7 Qcd6 Rf3+ Ke4 Qhd2 Bc7 Rd3 Bb8 Re3+
Q7/p4Pn1/2Q1B1RK/Pqqr1rN1/1np3r1/3q1b2/1PP2Brk/Q2Bb1q1 w - - 0 1 legal: proof: d4 b5 a4 f5 g4 fxg4 a5 h5 Qd3 e5 Ra4 bxa4 dxe5 Ne7 Nc3 Ng8 Ne4 h4 Ng3 hxg3 Qd5 Bd6 Qd1 Bf8 Kd2 Kf7 Ke3 Ke6 Kf4 g5+ Ke3 Kf5 h4 c5 f4 d5 e6 d4+ Kd2 d3 Ke3 g2 h5 d2 h6 a3 e7 a2 e8Q a1Q h7 g3 Rh2 Kg4 f5 c4 f6 Bb4 f7 Nc6 Nf3 g1Q+ Rf2 g2 Qe5 Kh3 Qd4 g4 Kf4 g3 e4 Bg4 e5 Nh6 e6 Nf5 e7 Ng7 Kg5 Qa4 Qc5 Qd3 e8B Qb5 Qe1 d1R Bd7 Rag8 Be3 Bd2 Kh6 Nb4 Ng5+ Kh2 Rf4 Bf3 Be6 Qf2 Qc8 g1R Rg4 g2 Be2 Bc3 Bb6 Qfc5 Qc6 Rf1 Rg3 g1Q Rg4 Rd2 Bd1 Rg2 Rg3 Rd8 Rg4 Rhe8 h8Q Rd5 Qf8 Re7 Qfa8 Re8 Rg3 Rg8 Rg4 Qd6 Bf2 Qdc5 Be2 Bd2 Qa1 Be1 Bd1 Qd6 Ne4 Qdc5 Rg6 Rg4 Bh4 Rf2 Ng5 Rfg2 Bf2 Re8 Bd7 Ree5 Be6 Rf5
2Q5/n3bn1B/2p2N1p/KqPb4/2pB3P/1R1Qrn1b/P1P1r1Bk/Q3n2b w - - 1 2 illegal: No proof kernel
K3R2b/1PQp3p/1p4k1/1R6/q1Qr3P/2Q1prnr/1b1PP2N/BbqR3r w - - 0 1 legal: proof: c4 b6 b4 Ba6 c5 Bd3 Na3 Bb1 c6 Na6 Qc2 Nc5 Qd1 Nb7 cxb7 a5 Qa4 axb4 Qc2 Ra7 Qd1 Ra8 g4 g6 Bh3 f6 g5 f5 Bg4 fxg4 f4 Ra4 f5 Qc8 f6 Ra8 Nb5 Qb8 Nd4 Qd8 Nf5 gxf5 Kf2 Kf7 Ke3 c5 a4 e5 h4 f4+ Kf2 e4 a5 f3 Ke3 g3 a6 f2 a7 f1R Ra2 g2 Rc2 b3 Rb2 c4 Kd4 e3 Kd5 c3 Nf3 g1R Nh2 Nh6 Qc2 Bg7 Kd6 Rg3 Rg1 Qg8 Kc7 Nf5 Qd3 c2 Qc3 Rf4 Rd1 Kg6 f7 Rh3 f8Q Ng3 Qfc5 Rd4 Qe5 Rf8 a8R Rf3 Re8 Qc4+ Kb8 Rg8 Qc7 Bh8 Ka8 Rgf8 Ra2 b2 Ra5 Rf1 Rc5 R8f3 Rb5 Kg7 g6 Rh1 Rc8 Kf6 g7 Kg6 Re8 Qb3 Qa5 Qa4 g8Q+ Bg7 Qgc4 Bh8 Re1 Ba2 Rf1 b1Q Bb2 c1B Ba1 Bb2 Re1 Qc1 Rd1 Qb4 Qa3 Bb1 Qac3 Qa4+
2br2qr/1nq2PB1/2R1R1PP/3qqq2/k5Nn/1p5Q/P2R1K1R/3rR3 w - - 0 1 legal: proof: d4 d5 c4 c5 e4 f5 Qg4 g6 Qd1 Bh6 Qe2 Bf4 Qd1 Bd6 cxd5 a5 exf5 c4 b3 Bc5 b4 axb4 dxc5 Be6 g4 Qc8 f4 Kd8 f6 Bf5 f7 Kd7 Bh3 Qd8 Nd2 Be6 Nb3 Bf5 Nd4 Be6 f5 h5 f6 Bf5 g5 Be6 Nf5 gxf5 Bg4 hxg4 Be3 Kc7 Bd2 Bc8 Bc1 Kd7 f8R e5 h4 b5 f7 f4 h5 f3 h6 b3 d6 Kc6 d7 c3 Rh2 g3 Rc2 b4 Rb1 Kb5 c6 f2+ Ke2 f1R c7 b2 Re8 b3 Qd2 e4 Re7 g2 Re8 e3 Re7 Na6 Nh3 g1Q Qd4 Rd1 Qd5+ Ka4 Qe6 Nc5 Bd2 Nb7 Nf2 Rb8 Kf3 e2 Qh3 e1Q Ng4 Qe5 Re6 Ne7 g6 Qgc5 Kg2 Qcd5+ Kf2 Qg8 d8R Nf5 Be3 Ra8 Bd4 Nh4 Rbc1 b1Q Rd2 Rg1 Re1 c2 Rdd6 c1Q Rc6 Ra6 Rcc2 Rd6 Bb2 Rd8 Bd4 Bd7 c8R Rh1 R8c6 Bc8 Rb2 Qc3 Rbc2 Qc7 Bg7 Q3e5 R2c3 Rg1 Rg3 Qbd3 Rg2 Q3e4 Rh2 Qb1 Re3 Rd1 Re1 Qbf5+
4RB2/1B1B3Q/BKpqB1qn/3r4/1nP3P1/np3P2/1pn1p1P1/5Nkr w - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 e4 e6 d5 g6 Ra3 g5 Re3 Na6 dxe6 Nb8 e5 Qe7 Re2 Qd8 Re4 fxe4 Nd2 g4 Ndf3 Qe7 Kd2 Qf6 Ng5 Qd8 f3 g3 N5h3 Nf6 Nf2 gxf2 Qe1 Ng8 Qe2 Ne7 Qd1 Ng8 Ne2 d5 Nf4 Bg7 Ng6 Bd7 Ne7 Bf6 Nc8 Bh4 Bd3 Bg3 hxg3 Bb5 Bxb5+ Nd7 Bf1 Nb8 Ke3 b5 Kd4 h5 Kc5 d4 c4 h4 g4 b3 e7 Kf7 e8B+ Ke6 a5 d3 a6 e3 a7 b2 Bh5 b4 Rg1 c6 Qa4 d2 Qa5 d1N Qb5 h3 Ne7 h2 Bd3 h1Q Rf1 b3 Qb7 Nh6 Nf5 Qd6+ Kb6 Nc3 Re1 f1N Qh7 Nb1 Ng3 Na6 Re2 Rad8 a8B Rd7 Bb7 Na3 Re1 Nb4 Bf7+ Ke7 e6 Kf6 e7 Ke5 e8B Kd4 Be6 Qh5 Bdf5 Qg6 Bd2 Rd8 B8d7 e2 Rd1 Ne3 Nf1 Nec2 Be3+ Ke5 Bc5 Kf4 Bdc8 Rd7 Ba6 Rdd8 Bcb7 Rd7 Rd3 Rdd8 Re3 Rd7 Nh2 Kg3 Nf1+ Kf2 Re5+ Qd4 Re4 Rd5 Re3 Qe5 Bf8 Kg1 Bd7 Qg3 Re8 Q3d6 Bfe6 Ng8 Qf7 Rh1 Qh7 Nh6
3RQ3/2bn1B2/1bPrNB2/1rBP1P2/2k1qn1n/b4qP1/2b2r2/1BK1b1B1 w - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 c5 a4 f5 axb5 fxe4 b6 Bg7 Ba6 Bh6 Bf1 Bf8 b4 d6 c4 Bb7 b5 Ba6 Ra4 Bc8 Rb4 cxb4 c5 d5 Na3 Bg4 Nc4 dxc4 Qc2 Be6 Qd1 Bc8 f4 Kd7 d4 Ke6 Kd2 Kd5 c6 a5 g3 h5 b7 e5 b6 h4 g6 c3+ Kc2 h3 g7 e3 Qh5 h2 Qd1 b3+ Kb1 c2+ Kb2 e4 Qe1 a4 Qe2 a3+ Ka1 b2+ Ka2 b1R Bh3 Nf6 Nf3 Bd6 Ne1 Rb5 Bg2 Bc7 Rg1 h1Q Qd2 e2 Qd1 Rf8 Nd3 e1N Qh5+ Bf5 Nc5 Kc4 g8B+ Qd5 Bb2 c1B Kb1 e3+ Be4 e2 Qe8 Nh5 Ne6 Nf3 Rd1 e1B Bf7 Nd7 b8B Nh4 b7 Qf3 Ba7 Rd8 b8B a2+ Kc2 a1B Bc5 Bh7 Bba7 Bg6 Bc3 Ba3 Bb2 Bf5 Kc1 Qe5 Bb1 Bc2 Rd3 Qee4 Rd2 Rh8 f5 Nf4 d5 Rh5 Rh2 Rh6 Bg1 Ra8 Bac5 Rg6 Ng5 Rd6 Ne6 Ra4 Rh3 Rab4 Rh1 Rb3 Rh2 Rd3 Re2 Rd2 Re3 Rf2 Rb3 Bab4 Bf6 Bba5 Ra3 Bab6 Ra8 Bac3 Rc8 Bb4 Rd8 Ba3+
1q1B1r2/5bkq/2PB2bn/1p5R/qn3q2/2P1n1BP/QP4BK/3NBr1q w - - 0 1 illegal: No possible last move
K2Q4/2r2BqB/b1qBP2P/bNp2Br1/rB4P1/2P2Rq1/bk1qn3/5q2 w - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 g5 f4 e5 Bb2 Nc6 Ba3 dxe4 Bc1 e3 Bb5 e4 Bf1 Ne5 fxe5 Qd4 Nc3 Qd7 Nb1 Qd8 a4 Bg4 g3 Bc8 Nc3 h6 Nce2 h5 g4 h4 Ng3 hxg3 Rb1 Ra7 Rb6 Ra6 Rf6 Ra8 Rf4 gxf4 Ke2 Kd7 h4 Ke6 d4 Kd5 e6 Kc4 c3 f5 d5 b5 d6 g2 h5 b4 h6 f3+ Ke1+ e2 Kf2 b3 Ke3 b2 d7 b1B a6 f4+ Kf2 Qe7 d8B Rh7 a5 Qg7 a7 Ba2 a6 Nf6 Qd6 Kb3 Ba3 e1R Bb5 Nh5 Be7 Ng3 Be8 Ne2 Bb4 Kb2 Qd8 c5 Bd6 Be7 Rh2 Rd1 Bf7 Rd5 Rh3 Rg5 Ke1 f2+ Kd2 f1Q Nf3 g1Q Nd4 f3 Nb5 e3+ Kd3 f2 Ke4 Qfg2+ Rf3 Rb8 a8B f1Q a7 Ba6 Bd5 Ra8 Bc4 Qg3 Bd3 Qh1 Bc2 Rc8 a8B Rc7 Bd5 Bf6 Bdb3 Be5 Kd5 Rh8 Qd7 Ra8 Bh7 Bf6+ Bf5 Bd8 Qc8 Rc6 Qb8 Ba5 Qd8 Rc7 Bc4 Nc1 Bb3 e2 Bc4 e1Q Bb3 Rb7 Kc6 Ne2 Bbc2 Qd2 Bh7 Raa7 Bcf5 Bc7 Kd7 Ba5+ Kc8 Rc7+ Kb8 Qhg2 Rd3 Qe4 Rf3 Qc6 Re3 Bb6 Rf3 Bb7 Rd3 Ra4 Rf3 Ba5 Ka7 Ba6+ Kb8 Qb6+ Ka8 Qc6+
1k6/p4K1R/2Br2R1/1Pn1bP2/1qqP2rP/1bq1nN2/rR3QpR/5Rr1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 g4 h6 b3 Ba6 Ba3 Bb7 Bd6 Bc8 Na3 Bg7 Nc2 Bf8 Bf4 gxf4 g5 h5 Ne3 Nh6 Ng4 hxg4 Kf2 Ng8 Ke2 Bd7 Ke1 Bc8 Kf2 Kd7 d4 e5 h4 c5 b4 Kc7 g6 f3 Kg3 c4 g7 f2 Rc1 e3 Qe2 c3 Rb1 e4 Kf4 g3 Ke5 g2 Rh3 c2 Rc1 Nd7+ Ke6 Ngf6 g8R Ng4 b6+ Kb8 b7 Qb6+ d6 Rh6+ Rg6 Bg7 Qf3 e2 Qe3 e1R Rf3 Be5 Ba6 f1Q Ne2 Nc5+ Kf7 Qb5 Rd1 c1Q d7 Qc3 Qf2 e3 Ng1 e2 d8R Ne3 Rh8 Qa4 Rd3 Ra1 Rh7 e1R Bb5 Ra2 Bc6 Rea1 Rd1 Qa5 Rh3 Qfc4+ Bd5 Bd7 Rf1 Ba4 Rh2 Bb3 Nf3 Qb6 Rgg7 Rd6 Rg6 Kc7 b8R Qa5 b5 Qab4 Re8 Rad8 Ree6 Rg8 Bc6 Kb8 Rb1 Nd5 Rb2 Rg1 Re7 Bf4 Re1 Be5 Rf1 Ne3+ Re6 Rd5 Rd6 Rg4 Rg6 Rd6+
2b1BRrn/4r1p1/5p2/2pk2P1/B1N4p/rK1ppn2/2PP1PrB/BB1Q4 w - - 3 6 legal: proof: b4 d5 a4 a5 e3 axb4 Ba3 h6 Ra2 d4 Bc1 e6 Ra3 d3 Rb3 Bc5 Rc3 Bd4 exd4 Ra6 Ne2 Ra7 Ng1 Ra8 h4 Qd5 h5 Qb3 Rc5 Ke7 Rg5 hxg5 Na3 Qa2 Nc4 Ke8 Ne3 Qd5 Nf5 Qd8 h6 Na6 h7 Nf6 Nh4 gxh4 Nf3 Ke7 Ng1 Qg8 hxg8B Nb8 Qf3 Kd7 Qd1 Ke8 g4 Kd7 g5 Kc6 a5 b5 a6 e5 a7 b3 d5+ Kc5 d6 b2 d7 b1R d8B b4 Bh3 e4 Nf3 b3 Bd7 e3 Ne5 b2 Nc4 Nh5 Rh3 Nc6 Be8 Nf4 Rf3 Nd4 Be7+ Kd5 Bd6 Ng6 Bh2 c5 Rf4 Rb8 a8B+ Rb7 Rf3 Ra1 Rf6 b1R Bb2 Ra7 Ba1 Ra2 Rf3 Ke6 Rf5 Rba7 Bac6 Re7 Ba4 Rb4 Qg4 Nf3+ Kd1 Rbb7 Rf6+ Kd5 Kc1 Re4 Qg1 Rbe7 Qd1 Rg4 Rf4 Rg2 Rf6 Ra3 Kb2 Ra2+ Kb3 Re4 Re6 f6 Re7+ Re6 Rf7 Re7 Rf8+ Be6 Bgf7 Rg8 Bae5 Nh8 Bc3 Rg3 Ba1 Rg2 Kc3 Ke4 Ne5 Bc8 Be6 Rb2 Ba2 Ng1 Bb1 Kd5 Nc4 Ra2 Kb3 Nf3 Bg6 Ke6 Bh5 Kd5 Bhe8 Ra3+
1K2br1k/2P3bB/1pp5/2Pp3N/qP2Nrn1/Q2n2R1/b2r1NP1/3NnnN1 w - - 0 1 illegal: No proof kernel
R2n4/3k1qr1/1K2p2p/2q2BP1/2b3bP/Q1B2B1n/1pPrPbB1/2NBn1n1 w - - 0 1 illegal: Other
Kq2RB1n/QBP4R/1q1R1b1Q/5r2/bb2P1B1/2kqp2p/4PP2/5r1n w - - 0 1 legal: proof: h4 c5 a4 g5 hxg5 b5 axb5 e5 d3 e4 dxe4 Bd6 b6 Bf8 b4 f5 b5 f4 Nd2 Qc7 Nc4 Be7 Nh3 Bd6 Ne3 fxe3 Nf4 Qd8 Nd5 Bf8 Nb4 cxb4 c4 Ke7 g4 Ke6 b7 Ke5 g6 h5 c5 d5 g7 a5 g5 h4 b6 h3 g6 b3 c6 a4 c7 a3 Rg1 a2 Bg2 d4 Ba3 d3 Bf3 Kd4 Bg4 Ne7 g8R b2 g7 Nbc6 b8Q b1Q b7 Qb6 Qa7 Ne5 b8Q N5g6 Qc1 d2+ Kd1 Be6 Qc6 Rh5 Kc2 Nf5 Rad1 Bb4 Re8 a1B g8B Bd7 Kb3 Nh8 Ka4 Ng3 Bd5 Nh1 Rg3 Bb2 Rf3 Ba1 Rf7 Rf5 Rg7 Qc8 Rh7 Bbc3 Bf8 Bb4 Bc4 Bac3 Ba6 Bb2 Bb7 B2c3 Rc1 d1Q+ Rc2 Qd3 Rd2 Bc5 Rd1 Kc4 Rd2 Bf6 Rd1 Kc3 Rd2 Qb3+ Ka5 Qbb1 Qd6 Bb4+ Kb6 Ba4 Qf4 Qc4 Rd6 Qcd3 Qh6 Qb3 Qa6 Qb2 Qb5 Ra5 Qa6 Qb3 Ka7 Qbe6 Rdd8 Qb6+ Ka8 Rad5 Qa7 Rd7 Bf3 Rg7 Rd4 Rg1 Bg4 Rf1 Rd6 Qxb8+
4RK2/3rP1P1/BB1P2kP/b1b4b/5Q1b/1qRn2n1/1Q1b3r/r1bBn2R w - - 0 1 legal: proof: c4 b5 f4 g5 a4 e5 axb5 d5 fxe5 dxc4 g4 Qd6 Nc3 Qd8 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Ne7 Nf2 Ng8 Ng4 hxg4 Kf2 f5 e4 Kf7 h4 a5 d4 c5 b4 f3 Ke3 f2 Kf4 g3 d5 g2 e6+ Kg6 Ke5 g1B e7 c3 d6 c2 b6 f4 b5 f3 b7 a4 b6 c4 Bb2 c1B Bd3 f1N Qc2 c3 Qf2 c2 Bc4 a3 Qg3 a2 Rb1 a1B Be2 f2 Bd4 Nf6 Rb2 Ra7 Qf4 Bg4 Rb3 Bd2 Rc3 c1B Bd1 Na6 b8R Nd5 b7 Ndb4 Bb6 Bh5 Ke6 Ng3 e5 f1R Rbc8 Nc2 b8Q Qc7 Re8 Ne1 Qb7 Qb8 Kd7 Kg7 e6 Nb4 g6 Bf2 Bf3 Bc5 Bd1 Bg4 h5 Nbd3 Rc2 Bf6 Rc3 Ra1 Qg2 Bh4 Qh2 Rf2 Qg2 Rh7 h6+ Kh8 Qb7 Rh2 Qg2 Rf7 g7+ Kh7 Qgf2 Bh5 Qe2 Bde3 Qb2 Bed2 Rc8 Rf6 e8B Be7 Bf7 Qb7+ Ke8 Bd8 Kf8 Qd5 Rb8 Qb3 Ra8 Rf5 Rb8 Bc7 Re8 Re5 Bg8+ Kg6 e7 Rg5 Ba7 Ba5 Bb6 Rd5 Be6 Rd4 Beg4 Rc4 Bc8 Rb4 Ba6 Rb5 Bd8 Rb7 Bb6 Rd7
r1r2B2/1qQR1B1r/7K/P1R2bPn/1PR4P/b2b3k/1Qnr1b2/2B1nr2 w - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 b4 bxc4 f4 g5 fxg5 a4 g4 h6 g6 Ra7 Nh3 Bg7 Na3 Ra5 Ng5 Bf8 Nc2 Ra6 Nd4 Ra8 Nb3 axb3 Nf3 h5 g5 Nh6 Ne5 Ng8 Ng4 hxg4 Kf2 Kd7 Kg3 e5 h4 f5 d4 c5 a4 f4+ Kf2 f3 Ke3 e4 Kf4 c3 a5 g3 d6 Ke6 g7 c2 d7 c4 Ra2 c3 Be3 c1R Ra3 g2 Qd3 g1R Rh2 c2 Qc3 f2 Ba6 f1R+ Rf2 b2 Ra2 b1B Qb2 Rh7 Qa1 Bc5 Rb2 Qb6 d8R Qb7 Rd7 Nf6 g8Q+ Rf7 Qa3 Rg2 Qd8 Rg7 Qc7 Nc6 Be2 Bb6 Bh5 Bc5 Bd2 e3 Ra2 e2 Qb2 e1N Be8 Rd1 Bc1 Rd2 Ra3 Ba7 Rc3 Nh5+ Ke4 Rg3 Rc5 Rc3 Rf4 Rc4 Rg4 Bb6 Ke3 Ba7 d5+ Kf5 Bf7 Nd4 Re4 Nf4 d6+ Kg4 Rd8 Kg3 Rd7 Nh5 Rf4 Kh3 Rg4 Qb8 Ke4 Qb7+ Ke5 Nb3 Ke6 Na1 Ke7 Rc3 Kf8 Bb6 Rgc4 Ba7 Rd8 Bf5 d7 Bb6 Rc8 Ba7 d8B Bb6 Rd5 Bf2 Be7 Bd3 Rd7 Bf5 Qb3 Bd3 Ba3 c1B Qb2 Nac2 Bc5 Rh7 Kg8 Bf5 Bf8 Rg7+ Kh8 Nd4 Rc5 Bbd3 Rc4 Ndc2 Rc5 Rg6 Kh7 Rg7+ Kh6 Rc4 Rb5 Re4 Rc5 Re8 Rd4 Rd8 Rdc4 Re8 Rd8 Rc8 Rdd5 Ra8 Rd6 Rec8 Rd7 Bh7 Qf6 Bhf5 Qc3 Bb2 Qd4 Bc3 Bc1 Bb2 Qf6 Ba3 Qb2 Rh7#
7q/3r2QK/2r2P2/NN1kP2b/1Q2n3/3rPN1b/PR2Qr1n/Rrb2b1n w - - 0 1 legal: proof: g4 e5 b4 a5 b5 f5 e3 h5 gxh5 f4 b6 f3 Be2 fxe2 d4 a4 dxe5 a3 Bb2 axb2 Kd2 cxb6 Ke1 b5 Kd2 b4 Kd3 Ke7 Ke4 Ke6 f4 e1R h4 b5 c4 d5+ Kd4 g5 c5 g4 c6 g3 h6 g2 h5 b3 c7 b4 h7 Rf1 h6 Ra3 Qc2 Na6 Qe4 Ne7 Nc3 b1B Qd3 b2 Ne4 b3 Qe2 Nc5 Nc3 Rf2 Qd1 Ne4 Qc1 Bd3 Nce2 b1R Qe1 b2 Rh5 Rd1 Nc1 b1R Nf3 g1N Nb3 Bf1+ Qd2 Rg8 h8Q Rg6 Na5 Rc3 h7 Rc6 Qd3 Rg7 Rh2 Bd7 Nd2 Qc8 Qe2 Nf5+ Kd3 Ba3 Qf8 d4 h8Q Nf3 Qb4 Nfg3 f5+ Kd5 f6 Bc1 Qg8+ Rf7 Qg7 Qh8 c8N Bdh3 Nd6 Rd7 Rg2 Nh2 Nb5 Nc5+ Kc2 Nh1 Nf3 d3+ Kc3 d2 Kc2 Na6+ Kd3 Ke6+ Ke4 Nc5+ Kf4 Kd5 Kg5 Ne4+ Kg6 Re1 Rg1 d1B Rg3 Rb3 Rg2 Rd3 Qed2 Bb2 Ng1 Rf5 Qc2 Bdg4 Rd2 Rf2 Nf3 Rc1 Qd1 Ba3 Qe2 Rb1 Rc2 Bc1 Rb2 Qc8 Kh6 Bh5 Kh7 Qh8+
2Q1nq1b/rQ1q2kP/n2R2N1/2R3Kn/4qQ2/2np1n1P/1R1PP1b1/2r1N3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 c6 axb5 c5 b4 cxb4 f5 Qb6 f6 Qe6 Bg2 Qd5 Bb2 Qb7 Be4 Qc7 Bg6 fxg6 Bd4 Qb6 Be3 Qd8 Bf4 exf4 Kf2 Kf7 Kf3 a5 Kg4 d5+ Kh4 b3 c4 f3 h6 f2 c5 f1Q c6 a4 b6 g5+ Kh5 b2 c7 g4 h7 g5 b7 a3 Qc2 a2 Qf5 g3 Nf3 g2 Ng1 g4 Nc3 b1N Kg5 d4 Nd5 g3 Qd3 Bg7 Ne7 Bh3 c8R Qd7 Kh5 Ra7 Qf3 d3 Rc6 Kf8 f7 Nf6+ Kh4 Rg8 Rc1 Bh8 Qe3 Ne8 Rc8 Nc3 Qc5 Na6 Rb1 a1Q Nf3 g1N b8Q g2 Rb2 Qaa4+ Qcb4 Rg5 Qb7 Kg7 Rc7 Ra5 Ne1 Qac6 Qc5 Ra1 Kg5 Rc1 Qcb4 Qcf3 Qc8 Qb7 Rc5 Qe4 Qbb7 Qf6+ Kh5 Nf3 Rf1 g1N Ng6 Nh4 Rf3 Qfe7 Rf6 Ngf3 Rd6 Bg2 h3 Nf5 Rdd5 Kf6 f8Q+ Qf7 Qh6 Qf8 Rd6+ Kf7 Qf4 Kg7 Kg4 Ng3+ Re6 Nh4 Kg5 Nh5 Rd6 Nf3+
1r1BQ1b1/PRr1nK2/k4bB1/5q2/1pP1PBQ1/1P2Qr2/3q4/1bR1n1nn w - - 0 1 legal: proof: a4 c5 d4 cxd4 g4 e5 f4 h5 fxe5 a5 Nc3 Nh6 Nd5 Ng8 Nb4 axb4 gxh5 b3 c3 Qa5 Nh3 Qd8 Rb1 Ba3 Ra1 Be7 Nf4 Bf8 Nd5 Nh6 Nb4 Ng8 Na2 bxa2 Rb1 a1Q b3 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 b5 Kd3 g5 Ke4 f5+ Kd5 b4 h4 f4 e4 f3 h6 d3 c4 g4 a5 g3 a6 d2 a7 g2 h7 g1N h5 f2 e6 Bg7 h6 Ne7+ Kd6 Nbc6 Bg2 f1R Bb2 Rb8 Ba3 Qf6 Rb2 Rf3 Qa1 d1N Rf2 Ne5 Rh4 Qf5 Rc2 Nd3 Qc3 Bf6 Rc1 Ne1 Bh3 Nf2 Qe3 Nh1 Rh5 Rg8 h8B Rg7 h7 Rf7 Bb2 Rg7 Be5 Rf7 Kc5 d5 Bf4 Qd7 Rh4 Kd8 Bg4 Rg7 Bh5 Rf7 Bg6 d4+ Be5 d3 Rf4 Qb5+ Kd6 d2 Bg7 d1B h8Q+ Qe8 Qh4 Bc2 Qg4 Bb1 Bh6 Bd7 Bg5 Kc8 Bh4 Kb7 Bg5 Ng8 e7 Qd8 e8Q Ka6 Bh4 Ne7 Bg5 Rf2 Rf3 Rg7 Bef4 Rf1 Rh3 Rf3 Rh7 Be6+ Qd7 Bg8 Bh4 Qda5 Qe8 Qa2 Bhg5 Rf7 Rg7 Bh7 Bh4 Qh5 Ke6 Qd2 Bhg5 Nf5 Bh4 Rc7 Rd7 Ne7 Kf7 Qf5 Bhg5 Rcc8 Rb7 Rc5 Bc7 Rc6 Bd8 Rc7 Bf4 Bg8+
4B1QQ/4b2P/3p1bP1/2n1Pnnr/3K4/N1B3rq/p1P3rQ/1bk1b1NN w - - 0 1 legal: proof: g4 b5 a4 bxa4 h4 g5 b4 c5 f4 e5 fxe5 h6 d4 Nc6 dxc5 Nb8 Rh2 Ke7 Rf2 Ke8 Rf4 gxf4 g5 h5 Ra3 Bh6 Rg3 Bf8 Rg4 hxg4 Kd2 Ke7 Kd3 Ke6 e4 a5 h5 f5 b5 d6 g6 a3 b6 g3 c6 a2 h6 a1B b7 f3 c7 f2 Ne2 g2 Qd2 g1B Qf4 a4 Qg4 a3 Qg3 f4 Bb2 f3 Nbc3 Nf6 Nc1 Qd7 Qg2 Nh7 Na4 Be7 Ne2 Ng5 Nec3 Na6 b8N Nc5+ Kd4 Bh2 Qg1 Bg3 Bb5 f1R Nd1 f2 Qh2 Rg1 Nac3 f1N Na6 Be1 Ne2 Ng3 Nf2 Rg2 Bc3 Rb8 Bc6 Rb3 Ng1 Bb2 Nh1 Nf5+ Kc4 Bb7 c8Q Rh7 Qh8 Ba8 Bb4 Rbg3 Bc3 Qc8 Be8 Bd5+ Kb4 Ba2 Kb5 Rf7 h7 Bb1 Kc4 a2 Qg8 Nh6 Qh8 Rf4 Kd4 Rh4 Nb4 Rhh3 Nc6 Rh5 Na7 Nf5+ Kc4 Ba3 Nb5 Bb4 Na3 Ba5 Bc6 Bad8 Ba4 Bf6 Be8 Bde7 Bf7+ Kd7 e6+ Kc6 e5 Kb6 Be8 Qd7 Ba1 Ka5 Bc3+ Ka4 Bf7 Bf8 e7 Qc8 e8Q+ Qd7 Kd5 B8e7 Qeg8 Qc8 Bb2 Qd7 Be8 Kb4 Bc1 Kc3 Bb2+ Kd2 Bc3+ Kc1 Kc4 Nh4 Kd5 Qh3 Kd4 Nf5+
n2B1bk1/Qnnb3p/r3Pqp1/1P4RR/2P1K3/1q1Q3r/1B1Q1q1P/B3n3 w - - 0 1 legal: proof: f4 c5 d4 g5 dxc5 b5 a4 e6 axb5 Be7 g3 Nf6 f5 Ng8 Bg2 Bf8 Bd5 exd5 g4 Ke7 Na3 Qb6 Nh3 Qh6 Nf4 gxf4 g5 Bg7 g6 Qg5 Nc4 Bf8 g7 Ke8 Ne5 Qd8 Ng6 fxg6 Kd2 Kf7 Kd3 a5 c4 f3 b4 a4 e4 d4 b6 d5 e5 a3 f6 a2 c6 f2 c7 f1Q+ Qe2 Na6 b7 Nh6 b8B Nf5 b5 Bd7 c8Q Nd6 Bh6 Qf2 Rhc1 Nc7 Qb7 Ra3+ Rc3 Kg8 Qf1 Na8 Qa7 Nb7 Bc7 Ra6 Rd1 a1N Bc1 Nc2 Bb2 Qe7 Bd8 Qf7 Qe2 Ne1+ Kd2 Ra3 Rg3 d3 Rg5 Ra6 Kc3 d2 Qd3 Qe7 Rh5 Qe6 Rc1 d1Q Rc2 Qb1 Re2 d4+ Kd2 Qh4 Rg2 Qe7 Ba1 Qb3 Rgg5 Qf7 Ke2 Qe7 Qd2 d3+ Ke3 Qf2+ Ke4 Ra3 Qde3 d2 Qd3 d1N Bb2 Ne3 Qd2 Kf7 g8Q+ Ke8 e6 Nd5 Qg7 Ndc7 Qd3 Rg8 Qh6 Ra6 Rg3 Rg7 Qhd2 Rf7 Ba1 Bg7 Rgg5 Kf8 Bb2 Kg8 Ba1 Rf8 f7+ Kh8 Bb2 Qef6 Be7 Rd8 f8B Kg8 Ba1 Bh6 Ba3 Bg7 Bfe7 Bf8 B3b2 Bc8 Qg3 Rd3 Bd8 Bd7 Qd6 Rf3 Q6d3 Rh3
nr1bb1Q1/3q1r1p/2P3nQ/knP4r/N3N3/2qRR3/PPQ1K1p1/1n3N2 w - - 0 1 illegal: No proof kernel
R2r4/q3pbP1/QN3b2/RbK1P2n/2PQ4/1R1Nr3/1Pkr1p2/q1N2q1r w - - 0 1 legal: proof: f4 c5 a4 h5 g4 b5 axb5 Nc6 d4 cxd4 g5 Ne5 g6 Qb6 Bh3 Qd8 Bg4 hxg4 Be3 Ba6 Bf2 Bc8 Bh4 Nf3+ Kf1 Ne1 Bf6 Nf3 Kf2 Ng5 fxg5 gxf6 Kf1 Nh6 Ke1 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 c4 Kd6 e4 Ke5 b6 g3 h5 f5 b7 f4 b8Q+ Qc7 h6 f5 g7 f3 h7 g2 g6 f2 Rh6 f1Q+ Ne2 g1R Ra4 f4 Qb5 f3 Ra1 a4 Ra2 a3 Qe1 f2 Nc3 Nf6 g8R Rh1 Na4 Ba6 Qc1 Bg7 Rh4 Rd8 Rh3 Nh5 Qd1 Bf6 g7 Qa7 Qb7 Bb5 Ra1 a2 Kd2 d3 Kc3 d4+ Kb4 d2 Nb6 d3 Nc1 Kd4 Rf3 Rh3 e5 Rh1 Qa6 Rh3 Qe2 d1B Qd2 Ke4 Qc3 d2 Kc5 Bda4 Rg3 d1R Rd3 Re3 Qd4+ Kf3 Rf8 Rd2 Rb3 Be8 Rg8 Bab5 Rf8 Bf7 Re8 Rf8 h8N Rg8 Ng6 Rh8 Nf4 Rh6 Rb1 a1Q Nfd3 Rh7 Na2 Ke2 Nac1+ Kd1 Rh8 Qa5 Ra1 Kc2 Rf8 Qa2 Rh8 Qb1 Ra5 Qa1 Rg8 Ng3 Rf8 Rh1 Re8 Nh5 Rh8 Rd6 Ra8 Rd8
b1r2rQ1/1p1n1rpP/1P1PnP2/BB1kbN1N/r2NbQ1K/8/3b4/B2n4 w - - 0 1 illegal: Other
q4N2/QrPQ4/bNrr2rn/K2Pp1P1/1pB5/P3B1bb/1B1p3n/3kN3 w - - 0 1 legal: proof: d4 g5 c4 a5 h4 f5 hxg5 c5 e4 d6 exf5 Bh6 b4 axb4 g4 Bd7 a3 Bf8 Rh3 Bc8 Rd3 Ra6 d5 Ra5 Rd4 Ra8 Ra2 Nd7 Rc2 cxd4 c5 Nb8 c6 Be6 Rc3 Bc8 Rc5 dxc5 Kd2 Kf7 f4 b5 g6+ Kf6 c7 h5 g7 d3 Bg2 c4 Qe1 b3 Kc3 h4 Kb4 b2 Qe4 h3 Nc3 b1R+ Bb2 d2 Qe2 h2 Qd1 h1B Bf1 Bg2 Nge2 Ra6 Qa4 Bh3 Nc1 Rh6 N3e2+ c3 Nd3 Rd6 Qa6 Nd7 Ne1 Ne5 Ka5 c2 Nc3 c1R Na4 Rcc6 Nb6 Rg6 Qa7 Nh6 g8Q Ba6 Qh7 Qa8 Bc4 e6 Qd7 Be7 Bc1 Nf3 Bb2+ e5 Bd4 Nh2 Bb2 Kg7 f6+ Kh7 f7 Bh4 f5 Bg3 Bd3 Kg7 f8N+ Kf6 Bc4 Kg5 f6 Kf4 f7 Ke3 g5 Kf2 Nh7 Ke3 f8B Kf2 Be7 Ke3 Nf8 Kf2 Bb3 Ke2 Ba2 Kd1 Bc4 Rdf6 Bc5 Rfd6 Qe8 Rc1 Be3 b4 Nc8 Rb6 Qd7 Rb7 Nb6 Rc2 Bf1 Rcc6 Bb5 Nf1 Bc4 Nh2
1Q2N3/NP1n2P1/n1R2npN/q2p2Pr/K2Pk3/3r1pRR/b2n3q/2qQ4 w - - 1 2 legal: proof: b4 b5 h4 c5 h5 e5 h6 g6 a4 cxb4 axb5 Bg7 hxg7 Qf6 Bb2 Qh4 Bc1 Qd8 e4 Nc6 f4 Ke7 f5 Rb8 Bb2 Rb7 Bc4 Rc7 Be6 Nb8 Bd4 Kf6 Be3 Rc6 Bf4 exf4 e5+ Ke7 Ba2 Rb6 e6 Kf6 e7 Rb7 Be6 fxe6 Rh4 Kf7 Rh5 Na6 Na3 Rb8 Rh1 Ra8 Nb1 Nb8 e8N h5 g4 a5 d4 e5 Kd2 a4 c4 f3 Kc2 h4 g5 h3 c5 b3+ Kc3 b2 Kb4 h2 f6 Ke6 b6 Kd5 c6 e4 c7 e3 f7 a3 f8R e2 b7 e1Q+ Kb3 a2 Qc1 Nf6 Rf7 Rh5 Rf8 Na6 Ne2 Ke4 Na3 b1N Nb5 Nd2+ Ka4 d5 Rb1 a1N Qd1 Nab3 Na7 Bf5 c8Q Qd6 Rg1 h1Q Qb8 Qdh2 Rg3 Qhf1 Rc1 Nbc5+ Kb5 Qfh1 Rh8 Ncd7 Ka4 Qh1g1 Rc6 Qe3 Nf4 Qc3 Nd3 Qc1 Qc7 Rc8 Qb8 Rc7 Ne5 Rc8 Re6 Rc3 Rc6 Rd3 Rh7 Bh3 Nf7 Bf1 Nh6 Be2 Qb3 Bd1 Rh8 Bc2 Rh7 Bb1 Qd1 Ba2 Qd8 Nb1 Nf5 Rh4 Qb8 Qec3 Rh8 Nd2 Rh5 Rg4 Rhh3 Rh4 Nh6 Rh5 Nc8 Qc5 Na7 Qa5+
bNnQ1b2/R1p3pN/4Pp1P/2k5/nr2br1P/K2QRPbn/8/1Rr4N w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 e6 c4 Na6 g4 Qg5 d4 Nb8 Bg2 Qe5 Be4 Qh5 Bg6 hxg6 gxh5 dxc4 d5 e5 Be3 Bd6 Bb6 Bf8 Bd4 exd4 Kd2 Rh6 Kc2 Kd7 e4 Kd6 b4 a5 Kb2 a4 f3 g5 b6 g4 b7 a3+ Ka2 d3 b5 c3 b6 c2 Qc1 g3 Qe3 c1R Ne2 g2 Rg1 d2 Nbc3 d1B Rh1 g1N Ng3 Rf6 h6 Nh3 Re1 Ne7 Nh1 Nd7 b8R Nc5 b7 Bc2 Rb1 Ra5 Ra8 Na4 b8N Bb7 Ra7 Ba8 Qd2 Rb5 Re3 Nc8 e5+ Kc5 e6 Kc4 d6 Bce4 d7 Rb2+ Ka1 a2 d8Q Rb4 Nd5 Rf4 Nf6 Kc5 Nh7 f6 Rb3 Nab6 Kb2 Na4+ Ka3 a1B Qb2 Rf5 Qbd2 Be5 Re3 Bg3 Q2d3 Rf4
7b/1bp2K1b/1kb1PpQ1/1N1n1P2/rpPr3Q/n1Br4/1r1Q2PN/2N4B w - - 0 2 illegal: Other
2N2k2/Pn5b/1p1R3q/rbR3q1/N1N1pKbQ/2r3pb/1P1P2Pb/1Q3n1R w - - 0 1 illegal: No possible last move, all moves rejected
R1Rrb3/KP2Bn2/Pp2p3/Q4B2/b2q4/1P1Bq1pr/1k2nbPr/2R2Q1r w - - 0 1 illegal: No proof kernel
1k1r1qQ1/1rqpP2N/1NQ1rRp1/2P1pq1b/3b2P1/1nq5/nKRP4/3Q3R w - - 0 1 illegal: No possible last move, all moves rejected
qRN4N/1P2p2K/2p1Q3/b3qP1R/r2p4/nRP2k2/pb1Pq1bn/2Q2r1Q w - - 0 1 legal: proof: e4 f5 f4 fxe4 a4 g5 f5 b5 axb5 Kf7 b3 Ke8 g4 Nh6 Bb2 Ng8 Be5 h6 Bf4 gxf4 g5 h5 Bh3 Bh6 Bg4 hxg4 Ra4 Bg7 Ra1 Bf8 Ke2 Kf7 h4 d5 h5 a5 b6 a4 g6+ Kf6 h6 Kg5 h7 g3 b7 Kg4 b4 e3 Kd3+ e2 g7 f3 b5 e1Q b6 a3 Kd4 a2 Rh2 g2 Rh3 Nf6 g8Q+ Bg7 Qc1 f2 Qe6 f1Q Rb3 Nbd7 b8R Qfe2 Nh3 Ne5 Na3 Nc4 Ng5 Ra4 Nf7 Bb7 Nb5 Na3+ Kc5 Kf4 Na7 Ng4 Nc8 Bb2 c3 Nh2 Rb1 Rg8 h8Q Kf3 Qh4 d4 Nh8 g1B Ra1 Bc6 b7 Be3 Qh7 Rg1 Qhh6 Rf1 Qh4 Bd7 Kd5 Bc6+ Ke5 Bd5 Rb1 c6 Qe4+ Kf2 Qh1 Qa5 Ra1 Qa8 Rb1 Be4 Ra1 Bh6 Rb1 Bg7+ Kf4 Be5+ Kg5 Bc7 Kh6 Bg2 Kh7 Ba5 Qc2 Qb5 Rd1 Qee5 Qc1 Qd3 Re1 Qda6 Re4 Qc4 Rh4 Qce2 Rh5 Kf3
BK1b4/p2b2n1/Rq1bQn1p/1kB2RPQ/3B1P1P/p7/P3r1pQ/n3n1r1 w - - 0 1 illegal: No possible last move
6b1/rq1pRn2/N1P1NpQ1/R2Kp3/2p1P1R1/p5P1/Q1q1pPNk/1nbr4 w - - 0 1 illegal: No proof kernel
3bBq2/qp2p1N1/3p4/r1QpN1Q1/1pnKn1B1/1PN2P2/p2PP1nk/1b2B3 w - - 0 1 illegal: No proof kernel
Q2n4/6n1/b1nB2r1/1kN1rPbp/2nPP3/PBBB1K2/1Q3nb1/q4R2 w - - 0 1 legal: proof: d4 f5 c4 d5 g4 a5 a3 a4 gxf5 g5 Nd2 e5 Nb3 e4 Nc5 g4 cxd5 g3 Nd3 exd3 Ra2 Ra7 b3 axb3 hxg3 bxa2 g4 Ra4 g5 Ra8 e4 Kd7 f4 a1N Kf2 b5 g6 h5 d6 Kc6 f6 d2 g7 b4 f7 b3 f5 b2 d7 b1N Rh4 Qg5 d8Q Ba6 Nh3 Qg1+ Kf3 Nb3 Qe7 Nc5 Qe5 Nb7 Be2 Nf6 g8B Bh6 f8B Ne8 Bh7 Rg8 Rf4 Rg6 Qf1 d1B Bd6 Ng7 Bf8 Bg5 Be3 Nd8 Bf2 Nd2+ Ke3 Nc4+ Kf3 Ra7 Qf6+ Kb5 Qg2 c5 Be1 Re7 Nf2 Nbc6 Nd3 Re5 Bd6 Qh1 Bb4 Qe1 Qf8 Qc3 Kf2 Qa1 Bf1 Bg4 Bg8 Bh3 Bc3 Ne3 Kf3 c4 Bb2 c3 Nc5+ Nc4 Bd3 c2 Bc3 c1N Qe8 Nf7 Qa8 Nfd8 Qb2+ Nb4 Bb1 Nd3 Be6 Nf2 Bg8 Na5 Bb3 Nbc6 Bd3+ Nc4 Rg4 Qf1 Rg1 Qa1 Rf1 Bg2+
1rbNkb2/r1P1bNP1/P7/1q2r1n1/K2bP1nN/R1B3nN/7Q/1Qb2b2 w - - 0 1 illegal: No proof kernel
2q2nK1/1n2nrNP/PBQ4b/6P1/8/2Q2QrP/1b2Q1bk/rbRNbr2 w - - 0 1 illegal: No proof kernel
1r1b4/bPq1PQ2/6Q1/qN1bB1P1/2q1NPR1/1n6/nr2qbNb/k4N1K w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 d6 e5 d4 f6 b4 Kd7 e4 Ke8 d5 Qe7 Ra2 Qd7 Rd2 Qd8 Rd4 exd4 e5 f5 Bd3 Qf6 Bc2 Qd8 Be4 fxe4 Kf1 Kd7 g4 h5 Kg2 c5 b6 a5 b7 e3 f3 h3+ Kh2 d3 b5 a4 g5 d2 b6 c4 Qb3 d1Q Qb4 c3 Qc5 c2 Na3 h4 Nb1 e2 Qc3 e1B Qc5 a3 Qf2 a2 Bd2 c1B Bc3 a1B Qf1 Be7 Nd2 Nh6 Bb2 Ra2 Ba3 Qc7 Qc4 Nc6 b8Q Bd4 b7 Bd8 Qd3 Ba7 Qb3 Nb4 Bb2 Bef2 Qc4 Nf5 Ne4 Nd4 Ne2 Bf4+ N2g3 Nb3 Rg1 Qe2 Kh1 h2 Nf1 Qa5 Ba1 Rb2 Rg4 Na2 e6+ Ke8 e7 Kf7 Qb5 Be6 d7 Kg6 d6 Bd5 Qc8 Kf5 Qa6 Ke5 Qc1 B4g3 Qf4+ Kd4 Qf7 Rg8 Qb6+ Kd3 Qa6+ Kc2 Qb6 Kb1 Qc6 Rd2 Be5 Rb2 Qa6 Ka1 Qc6 Bc7 d8N Rf8 Ne6 Rb8 d7 Bd8 f4 Qc4 Ng7 Qc7 Qcg6 Qa5 Kg2 Qcc7 Nf5 h3+ Kf3 Qc4 N5e3 h1Q+ Ng2 h2 Rh4 Bc7 d8N Qg1 Nc6 h1Q Rg4 Qgh2 Nd4 Bd8 Nb5 Qcc7 Ne3 Qhc1 Nf1 Q1c5 Ne1 Qh5 Kg2 Bh2 Kh1 Qc1 Ng2 Q1c4 Rh4 Qd1 Rg4 Qde2
3nr3/1qb5/8/bbbB3k/P1P2r2/n5pP/K1Rn2PN/Qb1rQQRQ w - - 0 1 legal: proof: c4 c5 e4 f5 exf5 d5 b4 cxb4 Nf3 a5 Qe2 d4 Nc3 dxc3 Ng1 h5 Bb2 a4 Qe6 a3 Qh6 axb2 Qxh5+ Kd7 Qh7 Ke8 Kd1 Kf7 Kc2 b1N Kb3 b5 a4 e5 f4 e4 d4 e3 d5 c2 d6 c1B h3 e2 f6 e1B d7 Na3 f5 Nc6 Nf3 Bf4 Rc1 Qb6 d8Q Qb7 Rg1 Bc5 Ra1 Bd7 Rd1 Bc7 Kb2 b3 Rb1 b4 Qh4 g5 Qc8 g4 Be2 Nd8 Nh2 Bb5 Rc1 g3 Rc2 Rh6 Qe4 Rh4 Bf3 Rf4 Qe5 Bd2 Qe1 Rb8 Ka1 b2+ Ka2 b1R Be4 Rd1 Bd5+ Kf8 f7 Kg7 f6+ Kg6 f8Q Kh5 f7 Nf6 Qfe7 Ne4 f8Q Bc3 Qce6 Nd2 Qf1 Ra8 Qff6 Rc8 Qee1 Rb8 Rb2 Rc8 Q7e4 Rb8 Qb1 b3+ Ka1 B3a5 Rc2 Rc8 Qb2 Rb8 Q2c1 b2+ Ka2 Nf7 Qa1 Re8 Qcb1 Nd8 Qe4 Rf3 Qf2 Qb8 Re1 Rf4 Qg1 Qb6 Qh1 Rc1 Rg1 Qb7 Qd3 Rce1 Qf1 Rc1 Rc3 Rce1 Qe4 Rb1 Qee1 Rd1 Rc2 b1B+
1Rn4q/KP6/2bRPR1p/2Pqb3/1kn2NRq/1b2Q3/n1QrP3/2Bn1r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 fxe5 Na6 d4 cxd4 g5 Nb8 h4 Bb4+ Nd2 Bd6 Bh3 Rh6 Nf1 Qe7 Ne3 Bc5 Nf5 Rh8 Nh6 Qf8 Bg4 hxg4 h5 Qe7 Nf5 Ba3 h6 Qd8 h7 Bf8 Nh6 gxh6 Kd2 Ke7 Kd3 a5 Kc4 d5+ Kc5 f5 c4 a4 b4 d3 b6 f4 b5 f3 g6 a3 e6 g3 g7 f2 b7 f1N b6 g2 Qb3 d4 Qa2 d2 Rh5 d1B Rf5 d3 Rh5 d2 Bb2 Na6+ Kb5 Kd6 b8R Ne3 b7 Qh4 Kb6 Ne7 g8Q Bd7 Rg5 Bb3 Rc1 d1N Re5 Bc6 Rc8 Bg7 Ra1 Nb4 Rg5 Be5 Rf8 Rd8 Ka7 Kc5 Rg4 Rd2 Nh3 g1Q Nf4 Qgh1 Rf6 Qd5 Qg5 Rf8 h8R Rf7 Qb1 Na2 Qc2 Kb4 c5 Nc4 Rb8 Rf8 Bc1 Nc8+ Ka6 Nac3 Rb1 a2 Rb2 a1Q+ Ra2 Ne7 Ka7 Qb2 Ra6 Na2 Nh3 Qa1 Qe3 Qc3 Rfg6 Rf1 Rf6 Qcd3 Nf4 Qh7 Ra8 Qh8 Rb8 Bd7 Rd6 Bb5 Rdd8 Bc6 Rd6 Nc8+
2K2RQ1/PQ4rQ/bRnPr1QB/3N4/Pr6/3Pn1pq/1kqb2b1/q5b1 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 c4 a5 bxa5 f3 Bh3 g6 Nc3 g5 Nd5 d6 Nf4 gxf4 g5 d5 Bg4 hxg4 cxd5 Rh6 Qb3 Rh7 Qd1 Rh8 Kf2 Kd7 h4 Kd6 e4 Kc5 a4 Kc4 a6 f5 d6 c5 h5 b5 a7 b4 h6 g3+ Ke1 b3 h7 b2 g6 b1R g7 f2+ Ke2 f1B+ Kf3 Nh6 e5 Ba6 Rh2 Rb4 Re2 Qc7 Re1 Rg8 h8Q Nc6 Ra3 Ng4 Rb3 Bg2+ Ke2 Ne3 Qh7 Re8 Rf1 Re6 Nh3 Be7 Rb1 Bd8 d3+ Kc3 Rf2 c4 Qh1 Kc2 Rf1 c3 Bd2 Qc8 Rb3 Bb6 Rf3 Rge8 g8Q R8e7 Bc1 Rg7 Rf1 Re8 e6 Qc7 e7 f3+ Ke1 f2+ Ke2 Bd4 Nf4 Bc5 Nd5 f4 Ra3 Kb1 Rb3+ Ka1 Rb2 c2 Kd2 f3 Kc3 Qc8 Bd2+ c1B Rb3 Rf8 e8Q Rf6 Qeg6 Re6 Rb2 Rh4 Rb6 Rb4 Q1h4 Ka2 Qe7 Kb1 Qb7 Ka2 Re1 f1Q Rd1 Qh1 Rf1 Qh3 Rf2 Nf5 Rf1 Bg1 Bf4 f2 Bh6 Rb5 Kc4 Rb4+ Kc5 Ne3 Re1 f1Q Re2+ Kb3 Rf2 Ka3 Rf8 Kb2 Rb5 Bd2 Kb6 Rb3 Rb4 Qa1 Rb5 Ne7 Rb4 Qcc1 Rb5 Qd1 Kc7 Rb4 Rb6 Nc6+ Kc8 Qc2
2K4Q/P2Q3Q/RPpR1PBb/1r2n2r/NkP5/1qb1Q3/3rr3/n1n1b2q w - - 0 1 legal: proof: g4 f5 d4 fxg4 h3 e5 dxe5 g5 Bg2 g3 Nf3 b6 Kd2 g4 Ke1 Bb7 Ng1 Bf3 Bf1 g2 Bh6 g3 Bf4 Qh4 Bc1 Qd8 b4 a5 a4 Ke7 b5 Ke8 Ba3 Bg4 hxg4 Ra7 Bb4 Ra8 Nd2 Bh6 Nb3 axb4 a5 Bg7 a6 Bf8 Na5 bxa5 Kd2 Ke7 Kd3 d5 Kd4 h5 Kc5 d4 c4 b3 e4 c6 f4 b2 f5 b1R g5 h4 a7 a4 e6 h3 e5 d3 g6 d2 b6 h2 g7 a3 Qh5 d1R Qg5+ Nf6 g8Q a2 Q5g6 Ng4 Bd3 Bh6 Bf1 Nf2 Bd3 Rd2 Nh3 g1B Ng5 g2 Ne4 Qd7 Bc2 Qd3 Nc3 Rb4 Rd1 a1N Na4 Qb3 Be4 Rh7 Qh8 Re2 Rd6 Rb5+ Kd4 Nd7 Qh5 Re8 f6+ Kd8 Bd3 Rd2 e7+ Kc8 e6 Kb7 Qh3 Ka6 Qe3 Ka5 Qg7 Rc8 e8Q Kb4 e7 Ne5 Qeh8 Rd8 e8Q Re2 Bg6 Nfd3 Qe6 Bf2 Qed7 g1B Ke4 Nc1 Kf5 Be1 Ke6 Bgf2 Rg1 h1Q Qgg8 Rf7 Qgh7 Bc3 Rgd1 Rff8 R1d2 Be1 Ra2 Rc8 Ke7 Rc7 Ra3 Rf7+ Kd8 Rg7 Bf5 Rg5 Bg6 Rb7 Kc8 Rh5 Nb2 Rd2 Ra6 Re2 Na4 Rd2 Qe6 Re7 Qd7 Ng4 Qf3 Ree2 Qe3 Ne5
1bBK4/2R2P2/1prkNn2/p2P1n2/2bQ1b2/1PRq4/Qq5P/Q2Qqr1r w - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 hxg4 e4 f5 exf5 Rh4 b3 Rh8 a4 Na6 Ba3 Nb8 Bc5 Nd7 Bd4 Nb8 Bb6 axb6 a5 Kd7 a6 Rh4 Na3 Rh8 Nc4 Ke8 Na5 bxa5 Ke2 Kd7 Ke3 c5 Ke4 g5 Ke5 b6 d4 c4 f4 g3 f6 c3 f5 c2 d6 c1Q f7 g4 f6 g2 a7 g3 Rb1 Nc6+ Kd5 e5 Be2 e4 Nf3 g1R Ng5 g2 Ba6 e3 Ne6 Qb2 Rc1 e2 Rc3 e1Q Bb7 Bh6 f8Q Bf4 f7 Rh4 Qg7 Nf6+ Kc4 Rh6 Kb5 Ne7 Ka6 Rb8 a8Q Rf1 Qa1 g1B Qg4 Rh4 Qgd1 Bf2 Rg1 B2e3 Rg5 Rh3 Rgc5 Nf5 Kb5 Rh8 Ba6 Be5 Qg2 Re8 Qgc2 Bg5 Qcb1 Bb7 Qba2 Rc8 R5c4 Rc6 Rc5 Kc8 d7+ Kb8 R5c4 Bgf4 Rc5 Ba8 Bc8 Rg8 Ka6 Rgg1 Kb5 Rh1 R5c4 Qg8 d8Q Qgg3 d5 Bb7 Qh8 Qd3 Qh4 Bg3 Qd4 Bgf4 Nf8 Kc7 Ne6+ Kd6 Qe3 Rc7 Qd4 Bc6+ Ka6 Bb7+ Ka7 Ba6+ Kb8 Ra7 Rc7 Bc4 Ba6 Rb7+ Kc8 Ra7 Kd8 Rb7 Re7 Rc7 Bc8 Rc6 Rc7 Qde2 Ng5 Qe3 Rb7 Qd3 Qe4 Kc5 Ne6+ Kb4 Ra7 Bb8 Rc7 Kb5 Ng5 Kc5 Ne6+ Kd6 Qe3 Ba6 Qd4 Bc4
4r2K/1bN1QpBp/P5R1/R2qR3/bP4P1/1rP3b1/knn2b2/r1QR3n w - - 0 1 illegal: No possible last move, all moves rejected
k1BB1Q2/3B2r1/n5RK/3bq3/2qqnr2/1bBpN1Pp/2P1P2P/qQ5q w - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 Nd2 g5 Ne4 Bg7 a3 Be5 fxe5 Ba6 Ng3 Bb7 Nh5 Bc8 Nf4 e6 a4 gxf4 axb5 d3 Ra6 Qa5 Rd6 Qd8 Rd5 exd5 Be3 d4 Bd2 Bb7 Bc1 Bc8 Kd2 d5 b6 Kd7 e6+ Kc6 b5+ Kb7 e7 f5 e8B h5 g3 a5 Bf7 h4 Ba3 f3 Bh5 a4 Bd6 h3 Be5 a3 Qb1 f2 Qd1 a2 Be8 a1Q Bg6 f4 Bf6 f3 Bf7 Ra7 Qc1 Qd6 Bg2 f1B Bd8 f2 Nf3 Be6 Nh4 Nf6 Be8 Na6 Bd7 Qe5 Qb1 Rf8 Nf5 Ka8 Ne3 Bf7 Bf3 Bg2 Rd1 f1Q Bfg4 Qff4 Bc8 Re7 Bgd7 Be6 Rf1 Rg7 Rf2 Qfe4 Rf4 Bg8 Rg4 Q4f4 Rg6 Ne4+ Kd1 Qg4 Ke1 Rf4 b7+ Ka7 b8B+ Ka8 b6 Bf3 Bbc7 d2+ Kf1 d3 Bd6 d4 Bb4 Bb3 Bc3 Qge6 Kg1 Qc4 Kf1 Nd6 Kf2 d1Q b7+ Ka7 Bb5 d2 Bc6 Qh1 B6d7 d1Q Be7 Kb6 b8Q+ Kc5 Qa8 Kb6 Bf6 Bg2+ Qf3 Ka7 Bd8 Rh4 Qf8 Bd5 Ng2 Ne4+ Kf3 d3 Ke3 Qdg1+ Kf3 Rh8 Kg4 Qgd4 Ne3 Rhg8 Kh4 Ka8 Kg4 Rf7 Kh4 Rgg7 Kg4 Qd6 Kh5 Rf4 Kh6 Q6e5
1nkbRn1r/7Q/R1P1P3/1B5K/1PbQ1n1Q/pb4Q1/pqP3Nn/2br4 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 a4 bxa4 d4 c6 Nc3 c5 dxc5 h6 Bf4 gxf4 Ne4 h5 g5 Ne7 Nf2 Ng8 Ng4 hxg4 Kf2 f5 e4 a5 b4 d5 h4 Kd7 h5 g3+ Kf3 g2 h6 d4 g6 a3 h7 a2 g7 a4 Rh2 a3 Qd3 Nf6 g8Q Bh6 Qd1 d3 Qg5 d2 Qe2 d1N Rh4 Ne3 Qg8 Ned5 Nh3 g1B e6+ Kc7 e7 Nfd7 e8Q Nf8 e5 Be6 c6 Qf6 Rh5 Bb6 Qeg6 Kc8 Qd2 Bd8 Re1 Ra7 Bc4 Rd7 Qg3 Bf7 Bb5 Bg5 Kf2 f3 Qd4 Bc1 Nf4 Rd6 Ng2 Nf4 Qh4 Bb3 Kg3 f2 Kf3 f1B Qgg3 Bfc4 Re2 Rg8 h8Q Rd7 Qh7 Rh8 Rg5 Rd5 Rg7 Rd6 Ra7 Qg7 Qe4 Rd1 Ra6 Qf6 e6 Qb2 Rf2 Nh3 Rf1 f4 Kg4 f3 Kh5 f2 Rg1 f1N Qd4 Nh2 Rf1 Bh6 Rf7 Bf4 Re7 Bc1 Re8 Nf4+
1R2q2k/b1P4N/2p2b2/n2r1q1q/1PrB1NqQ/2Pq2PQ/pN3K2/1b3N2 w - - 0 1 legal: proof: b4 e5 d4 g5 f4 gxf4 d5 h5 d6 h4 g3 h3 Bg2 hxg2 a3 c6 Ra2 Na6 a4 b5 axb5 Nc7 Ra3 e4 Rf3 exf3 dxc7 Rh3 Ba3 Rh6 Bc1 Rh8 h4 d5 e4 f5 c3 Kf7 e5 Kg7 h5 a5 e6 a4 e7 d4 e8Q a3 b6 f2+ Ke2 f1Q+ Kd2 d3 b7 f3 Ke3 f4+ Kd2 a2 b8N f2 Qe4 f3 Ke3 d2 Nh3 g1B Qd5 Ra5 Ng5 Ne7 Ne4 Qc4 Qg5+ Ng6 Nd6 Bf5 Nd7 Qg4 Nf6 Be7 Nc4 Rd5 Nb2 Qe8 Qh4 Ne5 Qf1 d1Q Nd2 Bb1 Nh7 Bf6 Qfh3 Rg8 h6+ Kh8 Rh2 f1Q+ Rf2 Qb5 Nf1 Qf5 Bd2 Rg4 Be1 Rc4 Bd2 Bh2 Re2 Qfh5 Kf2 Qg4 Be3 Qd3 Bd4 Bg1+ Ke1 Ng6 Re7 Ne5 Rd7 Qdf5 Rd8 Qfh5 Rb8 f2+ Kd2 Qa6 Ke3 Qac8 Ng5 Qcf5 h7 Kg7 h8N Kg8 Nh2 Kg7 Nh7 f1Q+ Kd2 Q1f3 Ke1 Q3d3 Ng6 Kg8 Nf4 Kh8 Nf1 Be3 Bc5 Bd4 Be7 Ba7 Bc5 Nf3+ Kf2 Nd2 Be3 Nb3 Bd4 Na5
2r3K1/1B1k2PP/2nP2q1/q2Q1p2/3NRP2/Br1rq2p/B1Qn1Bnq/7b w - - 0 1 legal: proof: d4 c5 a4 cxd4 e3 b5 axb5 d3 Kd2 d5 Na3 d4 Nb1 g6 Ke1 d2+ Ke2 Bh6 Kd3 Bg7 Kc4 d3 Kb4 Bd4 exd4 Bb7 Kc3 Bc8 b4 g5 h4 Nf6 h5 Ng8 Ra4 Nf6 Ra6 Ng8 Rf6 Qd6 Rf4 Qd8 Rfh4 gxh4 g4 h6 g5 Qb6 g6 Kd8 Kc4 Ke8 Kd5 Nd7 Ke4 Ba6 Kf3 Qb8 Kg2 Qd8 Nc3 Bc8 Ne4 Nb8 Ng5 hxg5 Kf3 e5 Ke4 a5 f4 h3 c4 g4 g7 a4 h6 a3 c5 a2 c6 a1Q d5 g3 d6 f5+ Kd5 e4 h7 g2 c7 e3 b6 e2 b5 e1Q b7 Qaf6 b6 Kd7 Ba3 Qg6 Qc2 d1N Nf3 g1Q Nd4 d2 Bc4 Qee3 Ba2 Qh2 Re1 Nc6 b8B Bb7 Ba7 Rc8 Re2 Ba8 b7 Rb8 Re1 Rc8 b8Q Nf6+ Kc4 Ne4 Kd5 Re8 Qb5 Rb8 Qbd3 Rb3 Bb6 Bb7 Bbc5 Qa8 Qb5 Qa5 c8B+ Kd8 Qbc4 Ba8 Ba6 Kd7 Bb7 Rc8 Qb5 Nb2 Bb6 d1R Re2 Nd2 Re1 Qeg1 Re4 Nd3 Bbc5 Ne1 Qbc4 Nb4+ Ke5 Ng2 Qd5 Qe3 Bb6 Qgg3 Kf6 Nc6 Kf7 Qg5 Re8 Qg6+ Kg8 Rdb1 Bbc5 Rd3 Ba7 Rbb3 Bb6 Nd8 Re4 Nc6+ Bd8 Nc4 Re5 Qg4 Qe4 Nd2 Ba6 Na7 Re8 Qh5 Bh4 Ne1 Bf2 Qg6 Qh1 Bf3 Bb7 Nc6 Qg2 Be2 Qd5 Bf3 Qd1 Bh1 Qc2 Nd8 Re6 Ng2 Re4 Nc6+
2nn3n/1QRPrb2/6p1/Br3rPQ/2b2Q2/3b1P1N/2PbpnQ1/1B1k3K w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 a4 f5 b5 g6 h5 Qd4 h6 Qg7 hxg7 b6 Nc3 e3 Ne4 fxe4 Rb1 Kf7 a5 Ke8 Rb4 cxb4 axb6 Bf5 Ke2 Bh3 Ke1 Bc8 g4 Kf7 d4 Kf6 g5+ Kf5 d5 Kf4 b7 h5 b6 a5 d6 e5 d7 a4 Rh2 a3 Nf3 h4 Qd5 b3 Bg2 a2 Kf1 a1R Kg1 h3 Nd4 b2 Kh1 b1B Qc4 Nc6 b8Q Nd8 b7 Ba2 Qe2 Rb1 Qd1 Bb4 Nf5 Ra5 Nd4 Bc4 Bd2 Ne7 g8Q Rh7 Bc1 Bd2 Qc7 e2 b8Q e1N Qd5 e3 Qba8 e2 Nb3 Nf3 Qcd6 e1N Qb5 Ba6 Qbb7 Nd3 Qba7 Nc8 Q7b8 Re7 Nd4 Rbb5 Qbb7 Bf7 Qb4 e4 Ne2+ Kg4 Bb2 Nfe5 Bc3 Bc4 Bf1 e3 Ng1+ Kf4 Qg2 Nef7 Qab7 Nh8 Qh5 Rf5 Be2 Rab5 Bf3 e2 Bd5 Ne5 Qa4 Ng4 Bb4 Bd3 Ba2 Bc4 Bb1 Bd3 Qgc6 Bc4 Rg2 h2 Rg3 Bf7 Rc3 Bc4 Kg2 Bd3 Rc5 Bc4 Ba5 h1B+ Kh3 Bd5 Qb4 Ne5 Kh2 Bf7 Qg2 Nd3 f3 Ke3 Nh3 Nf2 Qa4 Bb4 Kg1 Kd2 Rc7 Kd1 Kh2 Bc3 Kg1 Bd3 Qf4 Bd2 Kh2 Rb4 Kg1 Bac4 Kh2 Rbb5 Kg1 Ne4 Kh1 Nf2+
bqk4B/n1B2P1R/2q2P1N/3Kbr1P/p5Qn/3Bq1p1/2bpQ1P1/1rB5 w - - 0 1 illegal: No possible last move, all moves rejected
rQ3q2/pP2P3/p1Qn3k/nB1b2p1/1P1QQRr1/K1p1P3/3n3r/NR2b3 w - - 0 1 illegal: No proof kernel
4N3/pPr2r1P/p4N2/P2nq1pR/1QP5/b1Bk1nN1/1p1N1b2/K2q2qQ w - - 0 1 illegal: No possible last move
1k6/2r2Q2/2pP3r/PBP2P1R/Bq4rp/nb1qpp2/q2bQ2B/KN5B w - - 0 1 legal: proof: b4 a5 h4 axb4 Nc3 g5 Nb1 f5 Rh2 g4 Nc3 Na6 Ne4 fxe4 Rh1 Nc5 a4 d5 f4 d4 e3 Rb8 exd4 Ne6 Ra3 Ra8 Rf3 Ng5 hxg5 gxf3 c4 Kd7 g4 b5 g6 e5 a5 h5 g5 c6 g7 Kc7 g6 e3 f5 e4 d5 b3 d4 b4 c5 b2 d6+ Kb8 d5 b1Q d7 e2 Kd2 e1R Ne2 b3 Kc3 b2 Bg2 Nh6 g8B Ra7 g7 Ng4 Bf4+ Rc7 Bh2 Rg1 d6 Ne5 Qc2 Rh6 Bb3 Qh4 g8B Nc4 d8Q Na3 Qf6 Be6 Ba4 Bb3 Bc4 e3 Bcb5 Bg7 Qd2 Qbe4 Qc2 b1Q Qa2 Qd1 Kb2 Qed3 Nc3 Qb4 Nb1 Q1c2+ Ka1 Bh8 Qab2 Bg7 Qf7 Bc3 Bf1 Rg4 Bg2 Be1 Qa2 Qf2 Qe2 Bd2 Rg1 h4 Bh1 Qe1 Rg2 Qd1 Rg1 Q1c2 Rg3 Rd4 Rg5 Rg4 Rh5 Qa2#
2B4n/1Q1N2P1/p6R/2p2N1b/1PPprk1N/b4P1r/r2rQp1K/rq4N1 w - - 0 1 legal: proof: e4 e5 a4 f5 b4 g5 h4 b6 Bb2 Na6 Bd4 Nc5 Ke2 g4 Ke3 g3 d3 Ne6 Kd2 Ng5 hxg5 Ne7 f3 Ng8 Bf2 gxf2 d4 exd4 e5 b5 axb5 Kf7 Ra3 Ke7 Re3 Ke8 Re4 fxe4 g4 d3 Ke3 Ke7 Kf4 Ke6 Kg3 h5 c4 d5 g6 c5 g5 Kf5 b6 d2 b7 e3 b8Q e2 e6 e1R e7 h4+ Kg2 h3+ Kg3 h2 e8N Re4 Qb7 Bg7 Na3 Nh6 Qe2 d1R Nb5 Nf7 Nf6 Rg8 Nh3 Nh8 Nd4+ Ke5 Kg2 Bg4 Kg3 Qd6 Bg2 Ra1 Bf1 Rgd8 Ng1 Qa6 Bh3 Qa2 Kg2 Qb1 Kg3 Bd7 Kg2 Be8 Bc8 Rd7 Nf5 Rd6 Nd7+ Kf4 Nh4 Bc3 g7 Bd2 g8N Bc1 g6 d4 g7 Rg6+ Kf1 Rg3 Nh6 Rb8 N6f5 a6 Qc6 Rb5 Qb7 Rba5 Ng6+ Kg5 Qd3 R5a2 Ne2 Ba3+ Qd1 Rh3 Kg2 Bf7 Re1 h1R Qc2 Rf1 Rc1 Rd1 Qb2 Rd2 Rh1 Rc2 Ng1 Be8 Rh2 Rg3+ Kh1 Rce2 Rh6 Bf7 Ngh4 Kf4 Qc2 Bh5 Qd1 Rec2 Qe2 Rd2 Kh2 Rh3+
2RRn3/4n1Q1/r1qpnpBP/QNb2P1p/2k4P/2Pnr2R/6R1/K1n2bq1 w - - 0 1 illegal: No proof kernel
3R2N1/pp2PNbn/PPQBn2K/4rp1n/2r5/2n1kP2/5r2/rbNQN2n w - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 h5 g4 f5 g5 e5 Ra3 Qf6 gxf6 e4 Rd3 exd3 Bh3 Na6 Bg4 hxg4 Bb2 Nb8 Ba3 Kd8 Bc1 Ke8 Kd2 Kf7 h4 Kg6 e4 d5 c4 g3 a5 g2 a6 Nc6 e5 Be6 f7 Re8 f3 Nf6 b5 Nh5 c5 Nd8 Ne2 g1N c6 Nh3 b6 Ng5 c7 Nh7 Ke1 d2+ Kf2 d3 Ke3 d4+ Kf2 Ba2 c8N Ne6 Na3 Bb1 Bb2 Kh6 Nc1 g5 Nc2 g4 Rg1 Bg7 f8Q g3+ Kg2 Re7 Kh3 g2 Ne1 Rg8 Rf1 g1R Ba3 Rg2 Qe8 Rf2 Qc6 Rge8 Bb4 Rc7 Ne7 Rcc8 Ng8+ Kg6 Qd5 Rc4 Qc6 Re7 Bd6 Re8 Qc2 d1N Q2a4 Nc3 Qd1 d2 Rh1 Ng3 h5+ Kg5 h6 Kf4 Kh4 d3 Rh2 Nh5 Rh3 Nhf8 h7 Re7 h8N Nh7 Rg3 Ke3+ Rg4 Re8 Rd4 Re7 Nf7 Re8 Qc2 d1N Qb3 d2 Qba4 Ne2 Qb3+ Ndc3 Qd1 Nd8 e6 Neg3 Ngh6 Nh1 Ng8 Nf8 Kg5 Nh7+ Kg6 Re7 Qc2 d1R Rd2 Rc7 e7 Ne6 Qb3 Re4 Qba4 Re5 Rd5 Rd4 Qd1 Ra4 Rd2 Ra1 Rd4 Bf6 Kh6 Rc8 Bb4 Bh8 Rd8 Bf6 Bd6 Bh8 Qe8 Rc4 Qc6 Bg7+
bRn4Q/Kpp4r/P1P1r1q1/R1B2p2/5P1P/Qqn1Q1N1/1p1n2Qb/3k3b w - - 0 1 illegal: Other
kb1Qnb1N/2RqQ2Q/n1p3K1/P3pr2/4r2p/r3N1pr/2PQP1Pn/4B3 w - - 0 3 illegal: No proof kernel forced: bxLB
7b/p1PBNrpp/2pq1QrQ/1Q5P/2rBQK1R/P3ppPb/n2k4/4n3 w - - 1 3 illegal: Other
R2N1b2/1q4B1/R1P3bP/3PKb1R/1k1P3p/1p3rpq/R1n1Bn2/3R4 w - - 0 1 legal: proof: c4 c5 a4 d5 cxd5 b5 e4 f5 exf5 c4 b3 c3 Ra2 b4 Rb2 a6 Ra2 Ra7 Ra1 Rc7 Qf3 Qd7 Qd1 Qb5 axb5 axb5 Qc2 Rc6 Qd1 Rc5 h4 h6 Qg4 Rc4 bxc4 g6 h5 g5 Qh4 gxh4 g4 Nc6 g5 Ba6 g6 Bb7 Na3 Ne5 Nc2 Nc6 Nd4 Nb8 Ndf3 Bc8 Ng5 hxg5 Ke2 Kd7 Ke3 Kd6 Kd4 c2 f4 b3 f6 g4 f7 b4 f5 b2 g7 b1B f6 g3 h6 b3 Ne2 Na6 Bb2 c1Q Nf4 Bg6 Ra2 Nb4 Be2 Bcf5 Ne6 Qf1 Nd8 Qh3 Rd1 e5+ Ke3 e4 Kd4 e3 c5+ Kc7 c6 Kb6 Ke5 Kc5 d3 Nc2 Ba1 Be7 f8R Kb4 f7 Nf6 g8R Ne4 Re8 Rh7 f8R Nf2 Rg7 Bc5 Rga7 Rf7 R7a6 Rf6 Rf7 Bf8 Rfa7 Rf7 Ra8 Rf6 Kf4 Rf7 Bg7 Rf6 d4 Rf7 Bd3 e2 Ke5 e1Q+ Be2 Qc3 Re7 Qc5 Re8 Qa7 Re6 Qb7 Rf6 Be4 Rf5 Bd3 Rg5 Rf3 Rh5 Bdf5
1K6/2R1b1r1/R2p2bP/BpR5/k2qP3/1br2bN1/rR1RPP1r/1n1N4 w - - 0 1 legal: proof: b4 c5 bxc5 h5 g4 hxg4 d3 f5 Bh3 a5 Bg2 g3 Bd5 e6 Qd2 Nc6 Qb4 axb4 Be3 Ne5 Bd2 Ng4 Bc1 N4f6 Nh3 Ne4 dxe4 exd5 Ng1 f4 Bxf4 Ke7 Bc1 Ke8 Kd2 b5 Kd3 g5 Kd4 g2 Ke5 g4 h4 g3 a4 b3 c4 b2 a5 d4 a6 d3 c6 d2 a7 d1B c5 Be7 c7 Bb3 h5 Nf6 c6 Nd5 Ra2 Nc3 Nh3 g1R Bd2 g2 Nf4 Rc1 Rd1 g1R Be1 Rg7 Rd2 Bf7 Ra6 Bg6 h6 Rhg8 Nh5 d6+ Kd4 Bg4 c8R Bf3 c7 Kd7 Ra2 Kc6 Ng3 Nd1 Nc3 b1B Rab2 Kb6 Kd5 Ka5 Kc6 Bc2 Kb7 Bb3 Nd5 Rc6 Ne3 Nc3 Nd1 Nb1 Rb8 Bc2 c8R Bb3 Rc7 Rc3 Rbc8 Ka4 Rc5 Qa5 R8c7 Qb4 Re5 Rad8 Rec5 Qd4 a8R+ Kb4 Ra6 Ra8 Rb6 Ka4 Rbc6 Rgf8 Rb6 Rf5 Rbc6 Ra5 Ra6 Rh5 Kb8 Rh2 Rdc2 Rc4 Bb4 Rc3 Rd2 Bf8 Rb6 Ra6 Ba5 Be7 Rbc6 Ra7 Ra6 Rc1 Rb6 Ka3 Bc3 Ra5 Ra6 Ra4 Ba5 Rc3 Bb6 Ra5 Rdc2 Kb4 Rd2 Ra2 Ba5+ Ka4
1n1nn3/B1N4B/P2q1Np1/2qrP1P1/bKb1NNqR/4N2r/P7/5qbk w - - 0 1 legal: proof: f4 a5 g4 h5 b4 d5 bxa5 e5 c4 exf4 cxd5 Ke7 g5 Qd7 Na3 Ke8 Rb1 Qe7 Rb3 Qd6 Rg3 Qd8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 Kc3 f5 e4 b5 h4 c5 h5 b4+ Kc4 f3 a6 g6 h6 f2 h7 f4 Bg2 f1Q+ Ne2 b3 Bd2 g3 Rh3 b2 Bf3 b1Q Nc2 g2 Ba5 g1Q Rh2 Qbb6 Kc3 c4 Ne3 Nf6 Qc1 Qg4 Ng3 Ne8 Rh4 Bd7 Nh5 Ba4 Nf6 Qe7 Bd1 f3 Bb3 f2 Qc2 Qba7 Kb4 c3 Bb6 Qee6 Qc1 c2 Bc4 Qg7 Ba7 Qed7 Qa3 c1N Qc3 Nb3 Qc1 Rg8 h8N Na5 Qc2 Nb7 Nf7+ Ke7 Qc1 Rh8 Nd6 Nd8 Bb3 Qde6 Qc5 Rh7 Nh5 Qge5 Nf6 Qef4 e5 Rh5 Rh2 Rh3 Nde4+ Kf7 d6 Qd5 d7 Ke6 Nc4 Qd6 d5+ Kf5 Rh1 Qe3 Rh2 Qed3 Ne3+ Kf4 Rh1 Kf3 Bc4 Nf7 d8N Qd4 Ne6 Nd8 Nc7 Be7 Nd1 Kg2 Rh2+ Kg1 Ne3 Rg3 Rh4 Rh3 Nd2 Kh1 Nde4 Qde6 d6 Qed5 d7 Qd6 Ka3 Bf8 Bg8 Be7 Bb6 Ra7 Bh7 Rb7 Ba7 Rb5 Qb4 Rd5 Qc5 Qfe2 Rh6 f1B Rh5 Qef3 Rh4 Bc4 Kb4 Qf1 Nh5 Nf7 d8N Bf8 Nde6 Be7 Nef4 Bd8 Nb5 Bb6 Nc7 Nd8 Nhf6 Ba5+ Ka3 Be1 Nce6 Bf2 Kb4 Bg1 Nc7 Q4xc5+
1b5R/n1P5/4PRR1/1N1nBpRR/b1krP3/B1q1rPn1/1bb5/bb1K4 w - - 0 1 illegal: No possible last move, all moves rejected
1Rb5/n5P1/2K1P2p/pP1RBrrP/N4R2/2RqbB1n/r2n1R2/2b2rk1 w - - 0 1 illegal: No possible last move
n1B2B2/pQP2b1P/6Pr/PR4q1/Rqrp1r2/n1R1b3/1K2nRnR/4k3 w - - 0 1 legal: proof: e4 c5 d4 e5 f4 g5 dxe5 f5 b4 fxe4 bxc5 Qf6 Qd3 Qb6 Qd1 Qd8 g4 Kf7 f5 Ke7 Nc3 Ke8 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Kf7 Nf2 Ke8 Ng4 hxg4 Kd2 Ke7 Kc3 b5 h4 d5 a4 e3 g6 e2 e6 Kf6 h5 Ke5 e7 Ke4 e8R+ Kf3 f6 Kf2 f7 e1Q+ Kb3 d4 c4 g3 c6 f3 h6 b4 c7 g2 a5 g1N c5 Ne2 c6 Ne7 Bh3 Nd5 Bg5 Ndf4 Re6 Nd7 Ra2 Nb6 Ra1 Ng2 Bf4 Qg5 Rd6 Be6+ Kb2 b3 c8R Qb4 Rd5 Be7 f8R Bf7 Rc7 Rc8 Qb1 Na8 Rb5 Bd6 Bd2 Bf4 Ra4 Be3 Rh2 Rh7 Bc1 Ke1 Bf5 f2 Qe4 Re8 Bc8 f1R Qd5 Rh8 Qf3 Re4 h7 Rh4 Qd5 Rh6 Qe4 Rf5 Qb1 Rc5 Qe4 Rc4 Qe7 Be8 Rf2 Rf8 Qd7 Rf4 Qe7 Qbc5 Qg7 Bf7 Bd2+ Kd1 Bb4 Qb6 Bf8 Ke1 Rd7 Qbc5 Rd5 Qb4 Rdc5 Bd5 Qb7 Bf7 Kb1 b2 c7 Kd1 Ka2 b1N Ka1 Ke1 Rc6 Qd6 Kb2 Na3 Rcc5 Rc1 Rc3 Qdc5 Rcb3 Rc4 Rc3 Qb4+
BKnBR1Br/Prr1p3/3q4/1qp5/5bq1/1nPRPBP1/7q/N1qB2kb w - - 0 1 illegal: No possible last move, all moves rejected
BB5b/2ppk3/1nB1b3/Q1nr3p/3PP1r1/q1PB1K2/1nnrP3/1BbR3R w - - 0 1 illegal: No proof kernel
k1n2q1r/r1rR1pp1/1Rbn1N2/K2bpP2/QrR1R3/R1P2P2/N1b3P1/6b1 w - - 0 1 illegal: No proof kernel
6BB/nP4Pb/1NqpqK1B/Pnr2B1r/3k4/1R5P/q7/NbN1qb2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a5 a3 f5 exf5 g6 Kd2 Bg7 Ke1 Be5 a4 b5 axb5 a4 Bh6 Bg3 Bc1 Bc7 f4 h6 g4 g5 f6 Bb6 f5 Ba5 bxa5 Ba6 Qf3 Bc8 Qf4 gxf4 g5 h5 Ra3 Ra6 Rg3 Ra8 Rg4 hxg4 Ke2 Kf7 Kd3 e5 Ke4 d3 c4 d6 c5 g3 b6 g2 c6 f3 c7 f2 h3 a3 b7 a2 Be3 a1Q Nc3 d2 Nb1 d1B Bd4 Na6 Nf3 g1Q Nbd2 Ne7 Ne1 Nc6 Nd3 Qd7 Nb3 Na7 Ndc1 Qa2 Na1 Qde6 Bc4 f1B Bd5 Bd7 c8B Rh5 Bc4 Nc7 g6+ Ke8 f7+ Ke7 f8N Kf6 Rh2 Ncb5 Rb2 Qf2 Bc3 Qc5 Rb3 Qc6+ Bd5 Be8 Bd7 Bf7 Bc8 Bg8 Nd7+ Kg5 f6 Bh7 f7 Bc2+ Nd3 Rb8 f8B Bb1 Nb6 Kf6 Bh6 Ra8 Bd7 Rc8 Bd4 Qe8 Bf5 Qe6 Kf3 Rc7 Kg4 Rc8 Nc1 Rc7 Bc5 e4 Bb4 Ke5 Bc3+ Nd4 Bc4 e3 Bd5 e2 Bb2 Qed7 Bg8 e1Q Bc3 Qe6 Bb2 Rh4+ Kg5 Rc8 Nc4+ Kd5 Nb6+ Kc5 Bc3 Ndb5 Bh8 Rc7 g7 Kd4 Na4 Qcd5 Nb6 Rc5 Na8 Qc6 Nb6 Qed5 Kf6 Rh5 Bc8 Qde4 Bf5 Qe6+
3brQ1B/1q3rP1/B1P1r1BN/1N3P2/qr1b3K/3n1b1P/2kN1n1B/3bq3 w - - 0 1 legal: proof: e4 b5 d4 f5 f4 fxe4 a4 c5 dxc5 g5 axb5 Kf7 f5 Ke8 g4 h6 b4 Rh7 h3 Rh8 Rh2 Nc6 Rf2 Nb8 Rf4 gxf4 g5 h5 Ra3 Na6 Rg3 Nb8 Rg4 hxg4 Kf2 Kf7 c4 d5 c6 a5 c7 e5 c5 f3 Kg3 f2 b6 e3 b5 e4 g6+ Kf6 b7 Ke5 b6 d4 Bb2 e2 Qc2 e1R Qe2 a4 Qc4 a3 Ba1 e3 Be2 Ke4 Qb3 f1R Nf3 a2 Nh2 d3 Be5 a1Q Bb2 d2 Na3 d1B Bd4 Rf4 Qa2 Qe7 Bb2 Rh7 Ba6 e2 Nf3 Rf7 Ng1 Nc6 b8N Nf6 b7 Ne5 Kh4 Nd3 Nc6 Be6 b8B Bd5 c8B Qb7 Be6 Be7 Ne5 g3+ Ng4 g2 c6 Bd8 Nf3 g1B Bc7 Bd4 Nb5 Rc8 Qb3 Qa4 Qa3 Ra8 Qf8 Rc8 Kg3 Rb8 Nh6 Ng4 Bd7 Ngf2 Nd2+ Ke3 Be5 Bf3 Be8 Re4 Bh8 Re6 g7 Rc7 Bg6 Rf7 Ba3 Re8 Bd6 Re6 Nb3 Re8 Nc1 Kd2 Nb3+ Kc2 Be5 Rh1 Nd2 e1Q Qe7 Rg1+ Kh4 Rg2 Bh2 Rg4+ Kh5 Re4+ Kg5 Re6 Kh4 Qd7 Na7 Rb3 Nb5 Qb7 Qf6 Rb4 Qe7 B8b6 Qf8 Bd8+
5b2/1R1r4/1qk1Pp1P/n1q3K1/n1P1P1N1/2N1R3/1qbR3n/BNn1bRr1 w - - 0 1 illegal: No possible last move
4b2K/2knp1P1/3r2R1/2bRB1B1/1PP4q/1Qn1rq2/2B1Pnn1/1qRBb3 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 c5 f4 cxd4 f5 b5 Nd2 g6 a4 Bh6 axb5 a4 Nb3 axb3 Nh3 Bf8 Nf2 Qb6 fxg6 Qc7 g5 Qd8 Ng4 hxg4 Kf2 f5 Kg3 d5 Kf4 Kd7 Ke5 b2 c4 b1Q h4 d3 h5 d4 b6 d2 b7 g3 h6 f4 g7 d3 g6 g2 h7 g1B Rh5 f3 Qa4+ Kc7 Qa6 d1N Rh2 f2 Bg2 f1Q Rh6 d2 Qa4 Ra6 Be4 Nc3 Qb3 d1N Bg5 Ne3 Bc2 Bd7 Bd1 Nf6 g8B Rd6 Be6 Ng2 Bf5 Bc5 Bfc2 Rg8 h8R Bg7 Rh5 Qh1 R8h6 Be8 Kf5 Nbd7 b8B+ Kc6 Qa2 Nfe4 Qb3 Qh4 Bc7 Be5 g7 Nf2 Bb8 Rh8 Rg6 Bg3 Bc7 Qa8 Bb8 Qba2 Rc1 Qb1 Bc7 Re6 Bcf4 Rd6 Be5 Rf8+ Rf6 Rf7 Kg6 Kc7 Kh7 Qf3 Rg6 Rf6 Kg8 Re6 Kh8 Nh1 Qa4 Be1 Qa3 Nf2 Qb3 Qh2 Rh4 Qhg3 Rd4 Qgf4 Rd5 Q4g4 Bef4 Re3 Be5 Qh4+
n6r/P1N2bNn/3PPr1b/kPnn1q1N/bpnB1b2/5K2/B1BB4/5R2 w - - 0 1 legal: proof: b4 a5 h4 d5 f4 g5 hxg5 e5 a4 exf4 c4 b6 cxd5 Ba6 Qb3 Bb7 b5 Ba6 Qb4 axb4 a5 Bb7 a6 Bc8 Ra5 bxa5 Kf2 Kd7 e4 c5 d4 Kc7 g4 Kb6 g6 h5 g7 f5 e5 h4 a7 h3 g5 f3 d6 c4 d7 f4 g6 h2 d5 a4 d6 c3 Bg2 a3 Nh3 a2 Rd1 h1B Bd2 a1N Ng5 c2 Bc1 Nf6 g8N Nb3 g7 Na6 Be3+ Ka5 Ne4 c1B Rf1 Nbc5 Re1 Nh7 Rd1 Qg5 d8B+ Nc7 Bd4 Bg4 Bf6 Qf5 Nh6 Rb8 g8B Na8 Nf7 Bh6 Nbc3 Rf8 Bg5 Bd2 Nd8 Rf6 Ba2 Be3+ Kf1 f2 Ng3 Bh5 Re1 Bd1 Be4 Ba4 Ke2 f1N Ne6 Nd2 Nh5 Nc4 Bc2 Bd5 Neg7 Bf7 e6 Bd2 Kf2 f3 Nd5 Be3+ Kg3 f2 Nc7 Bf4+ Kf3 f1N Ra1 Nfe3 Rf1 Nb3 Bh4 Nd5 Be1 Nc5 Bec3 Bb3 Bd2 Ba4
B2B3K/3nNRrr/Pp4P1/1q1nb3/4BPbP/3Bb1N1/3r1nbk/1Nr5 w - - 0 1 illegal: No possible last move, all moves rejected
2rr4/1B4n1/rP3B1P/nk2N1q1/3B1p2/bK2P1Nb/Pn1q3N/R2r1nB1 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b6 b4 Bc5 Qc2 Be7 Qc5 Bf8 Na3 bxc5 b5 a6 Rb1 a5 Rb4 axb4 Kd1 Kd7 Kc2 f5 h4 g5 d4 f3 e3 f4 h6 g4 h7 b3+ Kc3 c4 h5 c5 b6 g3 h6 f2 d6 Kc6 d7 g2 Kb2 c3+ Kb1 c4 Bd2 b2 Kc2 b1R Ne2 g1Q Be1 Rd1 Nb1 Ra6 d5+ Kb5 d6 Ne7 Bg2 f1N Bf2 Nbc6 Nd2 Nf5 Nf3 Na5 Nh2 Ng7 Bb7 Qgg5 Bg1 Rg8 h8N Be7 Nf7 Rf8 Nc1 Re8 Ne5 Bf8 Kb1 c2+ Kb2 c3+ Ka3 Be7 Ne2 c1N Ng3 c2 Kb2 Nd3+ Ka3 Qc7 d8B Qd7 Bc7 c1R Bd8 Nc6+ Kb3 Nb2 Bc7 Qd8 d7 Ba3 Bd6 Rc2 Bc5 Rcd2 Bd4 Na5+ Kc3 Qde7 d8B Qd6 Be7 Bh3 Bf6 Rc8+ Nc6 Nac4 Kb3 Qdd5 Ne5 Qg2 Bc5 Rdd8 Bd4 Qd2 Nhg4 Rc1 Bf2 Nh2 Re1 Rb1 Bg1 Nf1 Nh2 Ra1 Rc1 Rb1 Rc2 Re1 Rc1 Rd1 Ra1 Na5+
Kr1N4/P3B3/Bb1BbNN1/p3Q2P/P3brb1/4BP2/r1nnr1b1/2nk4 w - - 0 1 illegal: No proof kernel
2N2r2/2q1qPBp/6N1/1Q1nP1bP/2r1N1k1/q1BrB3/2Pn2bp/K4Nb1 w - - 0 1 legal: proof: e4 g5 h4 f5 b4 b5 g4 e5 d4 c5 a4 Qc7 axb5 Bb7 h5 Qc8 Rh4 gxh4 Ra6 Qc7 Rd6 Qd8 Bd3 Ba6 dxc5 Bc8 Rd4 exd4 e5 Ba6 Be4 fxe4 Qe2 Bb7 Qd1 Bc8 Kd2 Ke7 f4 Ke6 g5 Kf5 g6 d5 g7 a5 b6 h3 c6 d3 Kc3 e3 Kb2 d2 c7 d4 b7 a4 b5 a3+ Ka1 e2 b6 e1B Ka2 h2 Qf3 d1R Qe3 d3 Nd2 Kg4 f5 Bh4 f6 Na6 b8B Bg5 b7 Qe7 f7 Nf6 g8N Ne4 Nh3 Nb4+ Ka1 a2 Nf1 d2 Qb6 Ra4 Ba7 Nd5 b8B Rc4 Qb5 Bb7 c8N Qc7 Bd4 Bc5 Nge7 Rf8 Bc3 Bg1 Ng6 Bc6 Kb2 Ba8 Ba7 a1Q+ Kb3 Qaa5 Kb2 Qa3+ Kb1 Re1 Bf2 d1Q Be3 Qae7 Ka2 Qd3 Ka1 Re2 Ba3 Nd2 Bd6 Rg2 Ba3 Rg3 Nf2+ Kf3 Ne4 Kg4 Bf4 Qe3 Bab4 Q3c5 Ba3 Rd3 Be3 Bh4 Bc1 Bf6 Bh6 Bg5 Bg7 Bc6 Ba3 Q5d6 Bc5 Bb7 Be3 Ba8 Qb3 Qa3+ Qa2 Qaa5 Ned6 Nf6 Qa4 Bg2 Ne4 Qab4 Qa5 Nd5 Qb5 Qa3#
1Rn3r1/b6k/2PN1Bbq/RRbN1n1n/2Kp3P/6P1/1n1Rp1NP/1nr5 w - - 0 1 illegal: No possible last move
N1R5/1r2Pq2/1PR2Pr1/2P1bN1N/2N1k1n1/n4b1r/K2bp1Bp/bb2R3 w - - 0 1 legal: proof: e4 e5 a4 c5 h4 g5 hxg5 b5 d4 bxa4 dxc5 f6 Qd4 Be7 Bf4 exd4 e5 Bd6 e6 Bf8 Be5 fxe5 Kd1 Ke7 Kc1 h5 g4 a5 c4 d5 b4 d3 Kb2 h4 f4 e4 f5 d4 c6 Kd6 f6 Ke5 g6 e3 c5 a3+ Ka2 h3 c7 a4 g7 h2 b5 d2 g5 d1B b6 d3 e7 d2 g6 Na6 Bc4 Ke4 Be2 Rh3 Bb5 Bf3 Bf1 d1R Ne2 Qe8 Bg2 Ra7 Nd4 e2 Nb5 Rb7 Re1 Nh6 g8N Ng4 g7 Bf5 c8R Nc7 Nh6 Rd8 Rd1 Qf7+ Rd5 Bg6 g8N Bh7 Nf5 Bh6 Ng7 Bd2 Nh6 Rg8 Nh5 Rg6 Nd4 Nb5 Ne6 Na7 Nc7 Nb5 Nc3+ Ke3 Nd1+ Ke4 Kb1 a2+ Kb2 Nc3 Na8 Nb1 Ne3 Na3 Re1 a1B+ Ka2 Be5 Rc6 Nb1 Nc4 a3 Kb3 a2 Rd8 a1B Ka2 Na3 Re8 Rg5 Rec8 Bf5 Rh8 Rg6 Rhc8 Be6 Nf5 Bd7 R6c7 Ba4 Rc6 Bc2 Rf1 Bd3 Re1 Bb1+
3N2r1/BP3n2/qb2pB2/2PrP2n/P1K5/R2B1rr1/pR6/1R1rnbBk w - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 f4 g5 fxg5 cxd4 Qd3 a4 Qd2 Bg7 Qd1 Bf8 b3 a3 Qd3 Rh6 Qc3 Rh7 Qb2 Rh8 Nc3 axb2 a4 b5 Nb1 b4 Na3 bxa3 Kd2 b1N+ Kd3 f5 e4 Kf7 h4 Ke6 c4 Ke5 g6 d5 b4 a2 g7 e6 b5 f4 h6 f3 h5 f2 b6 Nd7 h7 Ba6 b7 Bc5 h6 Na3 Nh3 Ndf6 Nf4 Nh5 Rg1 Bb6 Bb2 Nc2 Be2 f1R Rb1 Rb8 Bc1 Rf3+ Be3 Qg5 Rb2 Ne1+ Kd2 d3 Kc3 d2 Bd3 d1R Ne2 Rbf8 Nd4 Rg3 Kb4 Rff3 Nc6+ Kd6 Nd8 Ke5 Rh1 d4 Bg1 Kf4 Kb3 Qa5 c5 Ngf6 g8R Ng4 Rg7 Rg8 h8B Bb5 h7 Ne5 Rf7+ Kg4 Bf6 Kf4 Rf8 Nf7 h8B Ba6 Be5+ Kg4 Bb8 Bb5 Bh2 Kh3 e5 Rd2 Ba7 Kg2 Rf1 Ba6 Bg1 Kh1 Bf6 Bb5 Rf2 Ba6 Re2 Bb5 Re3 Rd1 Bb1 Bf1 Bd3 Rd2 Kc4 Rd1 Be2 d3 Rb1 d2 Ra3 Rd3 Rb2 Rd5 Bd3 Ra1 Be7 d1R Bf6 Rab1 Rf2 Rb3 Rb2 Nh6 Rf7 Rf3 Rg7 Nf7 Rgg2 Rfg3 Rb1 Rf3 Rgb2 Rfg3 Be2 Rbf3 Bd3 Qa6+
1n3q1N/Nn4kq/1r6/1RR3Pp/1bq3Nb/4NR1P/BPPp3K/2q1qr2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 d5 Nf3 b5 axb5 d3 Ng1 d4 Bh6 Bg4 Bc1 Be6 f4 f5 Qe2 Bd5 exd5 g5 Qe4 fxe4 f5 Na6 Be3 Nb8 Bf4 gxf4 Kf2 Kf7 g4 a5 Kg2 e5 d6 h5 d7 d2 f6 d1Q b6 e3 g5 e4 h3 e2 b7 e1B Ne2 e3 Ra2 a4 Nbc3 f3+ Kg1 d3 Nb5 f2+ Kh2 d2 Nbd4 a3 Ng3 e2 Ndf5 Qc1 Ne3 Rh6 Ng4 Bb4 Nf5 Qf8 Nfe3 Ne7 d8N+ Kg8 f7+ Kg7 Bg2 f1Q Nc6 Bh4 Na7 e1Q Bd5 Qc4 Rf1 Rb6 Rf3 Nc8 Ra1 a2 Be6 Qe7 f8N Nd6 Ng6 Qf6 Nh8 Qf8 Nc8 Ra5 Na7 Rf5 Bg8 Nd7 b8R Nb7 Rc8 Nb8 Rc5 Rf4 Nd5 Qee4 Nde3 Qh7 Be6 Q1f1 Re1 a1Q Re2 Qae1 Bg8 Qce4 Ba2 Qc4 Ref2 Rf7 Rff5 Qc1 R2f3 Qfe1 Rb5 Rff6 Rfc5 Rf4 Rg3 Rf1 Rf3 Qce4 Ne5 Qd4 N5g4 Qc4
b7/nPP4n/pN1P4/N1K3n1/RQn5/N1rprbR1/P4RR1/k2q1r1q w - - 0 1 legal: proof: g4 g5 f4 d5 fxg5 e6 h4 Qd7 e4 Bh6 h5 Qc6 g6 Bf8 g5 Qd6 h6 Bg7 hxg7 Qd8 d4 b5 c4 c6 c5 b4 Bd2 Qc7 Be2 Qd8 Bc3 bxc3 Bc4 dxe4 d5 Nh6 d6 Ng8 Bd5 cxd5 Kf2 Kd7 Ke3 Kc6 Kd4 Kb5 b4 f5 c6 h5 c7 h4 Qe1 Ka4 b5 e3 b6 e5+ Kc5 a6 Qf1 e2 Na3 e1N Nh3 f4 Rb1 f3 Qe2 c2 Nc4 c1R Nf4 e4 Nh5 f2 Rf1 e3 Nf6 h3 Qd3 h2 Ne8 h1B Kd4 e2 Qe3 Nf3+ Kc5 e1Q Qe5 d4 Qe2 d3 Rb5 Bg4 Nf6 Rh3 Qe4 Nc6 Nd5 Nf6 g8R Na7 g7 Rc3 g6 Qd1 Rb2 Qb8 Rh8 Qg8 Rh4 Qh8 g8N Rf8 g7 Nh7 Nge7 Nfg5 g8R Re3 Nc6 Bgf3 Na5 Rf4 Rg1 f1N Rf2 Nd2 Rg3 Rf8 Nb4 Rf6 Nc2 Rf8 Qd4 Ba8 b7 Bf3 Na3 Rf7 Qf4 Rf6 Kd4 Kb4 Nb6 Nc4 Qe4 Ne5 Nb5 Bh5 Na4 Nf8 Rgf3 Nh3 Rgg2 Ng5 Rfg3 Rf7 Re2 Rf1 Rd2 Bf3 Nb6 Qh7 Rf4 Qh1 Rdf2 Nfh7 Kd5+ Rc4 Na3 Kc3 Nc2 Kb2 Na3+ Ka1 Rh4 Rd4+ Kc5 Rb4 Qc4 Rb3 Qb5 Rc3+ Rc4 Rb3 Ra4 Nc4 Qb4 Rc3
rQ3K2/Pn2R3/2B4R/B1kpbrRP/1n3P1b/1n2bqR1/1p1P4/B2q2n1 w - - 0 1 legal: proof: c4 a5 e4 b5 b4 f5 exf5 g5 Qg4 Ba6 Qf3 axb4 Qd1 b3 Bd3 b4 Bf1 Bb5 cxb5 Ra3 Nc3 Ra4 Nb1 Ra8 f4 g4 Nf3 h6 Na3 h5 Nc4 Qc8 Nce5 gxf3 g4 Qd8 g5 Bg7 Ng4 hxg4 Rb1 Bh6 Ra1 Bf8 Kf2 c5 Kg3 e5 h4 Ke7 a4 Kd6 f6 b2 h5 b1N Kh4 b3 b6 f2 a5 e4 g6 e3 Kg5 e2 b7 e1B g7 g3 Kg6 c4 Kf7 c3 a6 g2 a7 g1B Qc2 Ne7 g8R Nec6 Qg6 c2 Qh7 Na5 Ra3 Na6 b8R Kc5 Be2 f1Q Bd1 Nb4 Rg4 Bg7 Bf3 Be3 Bc6 Bh4 Bb2 c1N Rb6 Qd1 Ba1 b2 Re1 Nb7 Qg8 Nb3 Rg5+ d5 Rba6 Qb6 Qb8 Rf8+ Ke7 Qb5 f7 Nc3 Rb6 Qf1 Re2 Rd8 f8B Bf6+ Kf7+ Rd6 Be7 Qg2 Bd8 Qf3 Kf8 Re6 Rba6 Re5 Ba5 Rf5 Rb6 Bed4 Re7 Be3 Rh7 Ne2 Rh6 Nd6 Rb7 Ng1 Re7 Nb7 Ra4 Nc2 Rae4 Nb4 Reg7 Bed4 Ree7 Bdf2 Rg3 Be3 R7g5 Be5+
6b1/1N3r1k/n1N2r1P/2rQ1N1p/1P1rBp1b/4q2K/BrB2PNP/2q4q w - - 1 2 legal: proof: b4 c5 g4 h5 g5 b5 a3 c4 Ra2 Qb6 Rb2 Qa5 a4 Qd8 Rb3 cxb3 axb5 Bb7 Ba3 Ba6 Bc1 Bc8 c4 d5 c5 Nh6 gxh6 Nd7 Nh3 Nf6 Rg1 Qc7 Rg4 Qb8 Ng1 Ng8 Rh4 Qc7 Rc4 Qd8 d4 dxc4 d5 e6 Bb2 e5 Bd4 exd4 e4 f5 d6 Kf7 b6 Kg6 b7 a5 b8N f4 c6 b2 d7 a4 c7 d3 e5 a3 e6 c3 e7 c2 e8B+ Kh7 Qd2 c1R+ Qd1 g5 Bh3 g4 Kf1 g3 Kg2 a2 Nc3 a1Q Nc6 b1R Qc2 Rb2 Qd1 d2 Qf3 d1R Nge2 Be7 Ncd4 Ra7 Nf5 Nf6 Qd5 Ne4 Bg4 Rf8 Ned4 Rf6 Bf7 Qe8 d8N Be6 c8B Nc5 Bb7 Na6 Kh3 g2 N4c6 Rd4 Bd1 g1Q Bc2 Qh1 Nd1 Qa3+ Ne3 Qa1 Bb3 Rc5 Bc2 Qac1 Ba8 Rc7 Nb7 Bd8 Ng2 Qe7 Be8 Bg8 Bf7 Qe2 Qe5 Rcd7 Ba2 Rdf7 Qd5 Qee3+ Qf3 Qe6 Nba5 Kg6 Ne7+ Kh7 Bc6 Qe5 Nb7 Rg6 Qb3 Qe2 B6e4 Re6 Nc6 Bh4 Qc4 Ref6 Qd5 Qee3+
bb1R2q1/1kp2p1N/4N3/P3b1bR/3q2Q1/R2bRb1n/P1P3NP/rr3K2 w - - 0 1 illegal: No possible last move
1rbq4/3P1rpk/4nnpN/5PR1/4RN1r/4RrPP/1pB2K2/qN2n1R1 w - - 0 1 illegal: No possible last move
7k/1p2B3/B1N1P3/NKBRP3/1PP1nr1r/3Brqp1/2pr1qb1/4bb1N w - - 0 1 illegal: No proof kernel
1bRN1N2/pB3K1p/2pp3n/2P5/3Rp2N/q3P1rP/1kqP1RRb/2q2n2 w - - 3 4 legal: proof: f4 e5 a4 b5 b4 bxa4 b5 Bc5 Ba3 Bxa3 c3 Bf8 Qc2 a3 Qd3 Bb4 Qd6 Bc5 Qf8+ Bxf8 g3 e4 Bh3 Na6 Bg2 Bb7 Bf1 Bd5 Bh3 Be6 Bf1 Bf5 g4 Rb8 Nh3 Rb6 Ng1 Re6 Nh3 Re5 fxe5 Be6 Ng1 f5 Nf3 f4 Ng1 Bf5 gxf5 Bb4 Bh3 Be7 Bf1 Bf8 Kf2 Kf7 f6 Ke6 f7 Kd5 e6 Kc4 h3 Kb3 e3 g5 e7 c6 e8R g4 c4 f3 Kg3 f2 Kf4 a2 Ke5 g3 c5 g2 b6 Nc7 b7 Bh6 b8R+ Nb5 f8N Kb2 Rc8 Nd4 Ba6 f1Q Na3 Nf5 Nf3 g1B Bb7 Ng3 Rh2 Qc1 Nb5 Nf1 Rf2 Bh2+ Kf5 Qc2 Nd6 Qa5 Nh4 Qa3 Nf7 B6f4 Nd8 Nh6+ Kf6 Rg8 Re1 a1Q Ree2 Bc7 Rg2 Bcf4 Ref2 Rg3 Re6 Bc7 Rd6 Qac1 Rd4 d6 Ke7 Bb8 Ke8 Nf5 Kf7 Nh6+
1B1B1Nb1/Kn3p2/3P4/b1p1P1b1/1kq2q2/b1rB3R/R1P1rP1p/B2R2rn w - - 0 1 legal: proof: e4 d5 h4 b5 a4 g5 axb5 gxh4 e5 Be6 Nc3 Bh3 Nb1 Bc8 d4 e6 Qd3 Qd7 Qe4 Qe7 Nc3 dxe4 d5 Qf6 d6 Qd8 Nd5 exd5 Kd2 Kd7 Kc3 h5 Kd4 c5+ Kc3 a5 b4 a4 g4 h3 g5 a3 g6 e3 b6 Kc6 b7 d4+ Kc4 a2 g7 d3 Rb1 a1B Bd2 e2 Rb3 e1B Ra3 h4 Bh6 h2 Bg5 d2 Be2 d1Q Rg3 h3 Re3 Qd4+ Kb3 Nh6 g8R Bb2 Rg3 Bf5 Bg4 Kb5 Bc1 Nc6 b8B Ra1 Bc7 Qg5 Nf3 Bh7 Nh4 Nf5 Bd8 Bh6 Ng6 Ba3 Nf8 Qgf4 Bb2 Bg5 Be2+ Qd3+ Bc3 Rc1 Rf1 h1R Re3 h2 Rh3 Bd2 Rd1 Rg1 Bf1 Qe2 Bb2 Ng3 Ba1 Bf6 Rg4 Nh1 Rgg3 Bg8 Rd3 Ka6 Ka4 Na5 Rdf3 Qec4 Bd3 Bg5 Rfg3 Kb7 Re3 Kc6 Re4 Qa2 b5+ Kd5 b6 Nb7 Kb5 Ba5 Ka6 Qc4+ Ka7 Rh7 Rd2 Rce1 Rd1 Re2 Ree3 Kc6 Reg3 Kb5 Rf3 Be1 Rfg3 Kb4 Rg4 Na5 b7 Rh8 b8B Nb7 Rgg3 Rh4 Be4 Bd2 Rc3 Rhg4 Bd3 R4g3 Rb3+ Ka4 Rb6 Ba5 Rb2 Rf3 Ra2 Kb4 Be4 Rb3 Bd3 Rc3
b1bbn2k/B2BN1p1/6rB/1N3pP1/Kr1PqPP1/1Np1B2b/1rrQ4/6n1 w - - 0 1 illegal: No possible last move, all moves rejected
6q1/B2r1b1p/2n3p1/Qppkq3/1bR1r1RR/2r5/PPK2PRP/bn3B1B w - - 0 1 illegal: Other
R1N1N1NK/3N2pR/pqb3r1/P1p1pr2/1p2Q2n/1R2Pp2/1Pn3P1/k1b1b1b1 w - - 0 1 illegal: No proof kernel
4B3/r2nqPrn/1rQ1K1Qr/4n1N1/1P1NP2b/2q2B2/kN5P/r3N3 w - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 h5 gxh5 b5 b3 b4 a3 a4 axb4 a3 d4 e5 d6 Bf5 Ra2 Bd7 Rb2 Ba4 bxa4 axb2 d5 f5 Nf3 Rh7 Rg1 Nd7 Rg4 Nb8 Ng1 Rh8 Rd4 exd4 e4 f4 Be3 fxe3 Ke2 Kf7 Kd3 c5 Kc4 g5 f4 d3 a5 g4 h6 g3 d7 g2 a6 d2 h7 e2 d6 Ke6 f5+ Ke5 f6 e1N f7 Ra7 Qc1 d1R Be2 Qe7 d8N Nd7 Bf3 Ngf6 Na3 b1R Ne6 Ra1 Nd4 Nd3 Qh6 Bg7 Qg6 Rb8 h8Q Nh7 Qc8 Rb6 Qc6 Bf6 Nge2 g1R Nf4 Rg4 Ng2 Bh4 Ne1 Rg1 Nab5 Rg5 Nc3 Rh5 Na4 Rh6 Nb2 Rd2 Qg4 Rg2 Qh5+ Rg5 Qg4 Rg7 Qg6 Kf4 Kd5 Ke3 Qc8 Kd2 Qc6 Qd8 Ke6 Kc3 Qc8 c4 Qc6 Nb8 d7 Qe7+ Kd5 Ne5 d8N Nbd7 N8e6 Kd2 Ng5 Kc1 Qa4 Kb1 Qac6 Qf8 Ke6 c3 Na4 c2 Nb2 Rab7 a7 c1Q a8B Rba7 Bb7 Qc3 Ba6 Ka2 Bc8 Ndf6 Bd7 Qfc5 Be8 Nfd7 Nc4 Qf8 Nb2 Qe7+
2N4b/1qQ1b3/1B1p2bP/1K2B1P1/1Q2P1nN/2qn1b1P/N2k1b2/2qN4 w - - 0 1 legal: proof: h4 h5 d4 c5 dxc5 e5 b4 a5 a4 g5 b5 b6 Rh3 g4 Rd3 Rh6 Rd4 exd4 Ra2 Rg6 f4 Rg5 Rb2 Ra6 Rb4 axb4 a5 Ra8 axb6 Ra3 fxg5 Rh3 gxh3 g3 Bg2 Nf6 Bf3 Ng8 Bg4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b7 Ke4 c6 f5 h5 d6 e3 b3 b6 f4 h6 f3 c3 b2 c7 g2 Bd2 g3 Qa4 d3 Na3 b1Q Nb5 f2 Nf3 g1B Qb4 f1Q Nh4 Na6 b8B g2 b7 Qdf6 Ba7 Nc5 b8N Qfc1 Nc6 Bf5 c8N Be7 Bb6 Bg6 Be1 d2 Bg3 d1B Be5 Qcb2 Ncd4 Bh2 Ne2 g1B Nc1 Bf2 Na2 Q2c2 Nba7 Qbc1 Kb5+ Kd3 c4 Q2b1 e4 Ke2 Bd8 Qg7 Bb6 Nd3 c5 Nf6 c6 Ng4 c7 Bhg3 Ka6 Bd4 Nb5 Bgf2 Nbc3+ Kd2 Kb5 Bf3 Nd1+ Bc3 Na7 Qb3 c8Q Qh8 Qb7 Qc8 Qc7 Qb7 Nc8 Qba3 Qbc5 Bcd4 Qb4+ Qac3 Bh2 Bg7 Be5 Bh8
b7/4PR1r/2Q2n1p/kr1QnP2/r5p1/PP3bK1/Rb1R1N2/r1NR4 w - - 0 1 legal: proof: c4 b5 Qc2 d5 cxd5 b4 Qd1 b3 d4 e5 axb3 a5 Bh6 a4 Bc1 a3 bxa3 Ra5 Nh3 Ra7 Ng1 Ra8 g4 exd4 h4 f5 h5 Bc5 Bh3 Bf8 Bh6 gxh6 g5 Qd6 Bg4 Qg6 hxg6 fxg4 f4 Kd8 Kf2 c5 e4 Kc7 e5 Kb6 d6 d3 e6 d2 f5 c4 g7 c3 g6 c2 d7 c1R d8R Nd7 e7 Ra4 Qe2 d1R Nd2 Bb7 Ra2 Bf3 Qc4 Ka5 Kg3 Ra1 Ne2 Ne5 Nc1 Nf6 g8R Bg7 Ne4 Rd5 Qc6 Rb5 Rdd2 h5 Rg1 h6 Rgd1 Rh7 Rf8 Bh8 g7 h4+ Kh2 h3 g8Q Bg7 Kg3 h2 Nf2 h1B Rf7 Bh8 Qd6 Ba8 Qc6 Bf3 Qd8+ Rb6 Qd4 Rb5 Qdd5 Ne4+ Kh2 Nd3 Qc2 Bb2 Qcc6 Nf6 Kg3 Ne5
nqB4B/1Rp2kPq/Q4Pq1/2n4P/r1rR4/rpKn3Q/R5RP/5r2 w - - 0 1 legal: proof: g4 d5 c4 dxc4 f3 h5 gxh5 g5 Bh3 f5 Bf1 g4 e4 g3 e5 f4 Ke2 Bg7 Ke1 Bf6 exf6 Qd5 Qc2 Qd3 Qd1 Qd8 b4 a6 Nc3 Bg4 fxg4 a5 b5 Kf8 Nd5 Ke8 Nb4 axb4 a4 b6 a5 Qd5 a6 Kd8 Ne2 Kd7 Nd4 Ke8 Nc6 Qd8 Na5 bxa5 d4 e5 Kd2 b3 a7 e4 d5 c3+ Ke2 c2 Kd2 e3+ Kd3 a4 b6 g2 b7 g1Q g5 f3 d6 f2 d7+ Kf7 Ra2 a3 Qf3 e2 Kc3 e1Q+ Kc4 Na6 b8R Qe4+ Kc3 Nc5 Be2 f1R Qg4 Ne7 Ba6 Nc8 Rb7 Qh7 Qh3 Nb6 Be3 Qdg8 d8R c1N Rd4 N1d3 Bc1 Qg2 Rg1 Qb8 Bd2 Qge4 Rg2 Qeg6 Bf4 Rd8 Bd6 Re8 Bf8 Re4 Bg7 Ref4 Bh8 Rh4 Rac2 a2 Rb2 a1R Rbe2 Qe8 Ra2 Rb8 a8Q Rhf4 Qa7 Na8 Rb5 Rb6 Bc8 Ra6 Rb7 Ra4 Qa6 Rb4 Bg4 Qb8 Bc8 Ra4 Rd6 Rfb4 Rd4 Qgg7 Rad2 R1a3 g6+ Kf8 Rc2 Qgh6 g7+ Kf7 Rb2 Q6g6 Ra2 Rc4+
2k1b1n1/rRb4p/R3P1Bn/p1Rr2Pq/P7/2R2pQp/1P1B2Q1/n4K2 w - - 0 1 legal: proof: d4 c5 dxc5 b5 h4 e5 f4 g5 fxe5 g4 Nh3 gxh3 g4 b4 g5 b3 h5 bxc2 Kd2 cxb1B Ke1 Bg6 hxg6 Bh6 Qa4 Bg7 Qd1 Bf8 e4 f5 e6 d5 a3 f4 e5 f3 c6 d4 c7 d3 e7 Kd7 e8R Bd6 g7 Nc6 Bd2 Nh6 g8Q Ne7 Qe2 a6 Qh2 Ra7 Qg2 Bb7 c8R Bc7 Rb8 Bc6 Rb7 Kc8 e6 a5 a4 Bb5 Rc1 Bd7 Qf8 Neg8 Rc3 Bb5 Re7 Qe8 Qf4 Qh5 Qfg3 Be8 Be2 Bc6 Kf1 Be8 Bc1 d2 Bd3 d1N Bd2 Bc6 Bg6 Ne3+ Ke1 Nc2+ Kf1 Na1 Rd7 Nf6 Rd6 Be8 Ra6 Rf8 Kf2 Rf7 Rhc1 Nfg8 Kf1 Rf5 Rc5 Re5 R1c3 Rd5
2KnB3/2B1nP1q/5Pbq/Q2RRPn1/PRq4b/krR2qr1/4n2Q/5n2 w - - 0 1 illegal: No proof kernel
1n1r1K2/2Q1P2r/1NPb1P2/1r2Bb2/Q1Bn2Pn/N3bB1B/1k3r2/1q1b1n2 w - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 e5 hxg5 a5 b4 axb4 a3 Bh6 Qd6 Bg7 Qd1 Bf8 e4 f6 g4 Qe7 a4 Qd8 Rh3 Qe7 Rd3 Qd8 Rd4 exd4 e5 f5 Ra3 Qc7 Re3 Qd8 Re4 fxe4 Ke2 Kf7 f4 Ke6 c4 d5 c6 h5 c5 b5 c7 b3 c6 d3+ Ke3 h4 Kd4 e3 g6 d2 a5 h3 a6 e2 a7 e1B g7 b4 Ne2 b2 Ng1 h2 Qe2 d1B Qa6 h1N Be3 b3 Bd3 Bd2 Na3 b1N Bc4 b2 Bf2 Ng3 Be3 Nf1 Qa4 Rh7 Ne2 Nh6 Bf2 Bd6 Bg3 Nc3 Qa5 Bd7 c8B b1R Qc7 Rb5 Ba6 Qe8 Bh2 Qg6 Bg3 Qb1 g8B+ Ke7 e6 Kf6 e7 Be6 Nc1 Bf5 Nd3 Bc1 Nb2 Bd2 Bd3 Bc1 Be4 Bd2 Nc2 Bc1 Na4 Be3+ Kd3 d4 Kc4 d3 Na3 d2 Bf3 Ne2 Nb6 Nd4 Bgd5 Be6 f5 Bc8 Bg2 Bd7 Bh3 Bc8 Bh4+ Ke5 f6 Nhf5 Bf3 Bd7 Bf2 Nh4 Be1 Bf5 Bf2 Ba4 Be1 d1R Bc3 Rd2 Ba1 Bd1 Bb2 Nd7 Bc3 Rd8 a8Q Nb8 Bb2 Rb3 Bb5 Rd7 Qa4 Kf4 Kd5 Rf2 Bd3 Rb5+ Kc4 Bd2 Bc3 Ke3 Ba1 Ne2 Be5 Nd4 Bde2 Bc1 Bd3 Kd2 Bde2 Rb2 Kd5 Kc3 Bc4 Be3 Bg3 Rb4 Bh2 Ne2 Bg3 Kb2 Bf4 Bd3 Ke6 Rb5 Bg3 Rh6 Kf7 Nd4 Kg8 Bf5 Kf8 Rh7 Be5 Rd8+
2NQ4/N7/rp2Bn1Q/1P1b2Nq/2Pnrr1q/P1r4P/3kB1Nn/2bb2K1 w - - 0 1 legal: proof: e4 c5 b4 g5 d4 a5 dxc5 f5 exf5 Nf6 a3 Nd5 b5 Nf6 Ra2 Kf7 Rb2 Ng8 f6 Ke8 Rb4 axb4 f4 h6 g4 Ra6 f5 Ra8 Be2 Na6 Nh3 Nb8 Bf4 Qc7 Rg1 gxf4 g5 Qa5 g6 Qd8 Rg5 hxg5 Kf2 d5 c4 Kd7 c6+ Kd6 c7 Ke5 f7 Ke4 f6 e5 g7 b3 Kg1 Ke3 Nc3 e4 Bf1 b2 Nb1 d4 Be2 d3 Qe1 g4 Qa5 d2 Kf1 d1B Qa7+ b6 Qa4 g3 Qa6 f3 Qa5 f2 Qa4 Be6 c8B Nc6 Qa7 Nd4 Qb7 Ra6 Qd5 Rh4 Ng5 Rf4 Nc3 b1R h3 Rc1 Na2 Rc3 Nb4 Kd2 Nc6 e3 Na7 Bb4 Qd7 Bd5 f8Q Bc5 f7 Nf6 g8N Bd6 Bf3 e2+ Kg2 f1N Ne7 e1Q Kg1 g2 Be2 Qe8 Qh6 Qh4 f8N Nh2 Qd8 Qeh5 Be6 Re4 Nec8 Bf4 Bd7 Ke1 Bf5 Bc1 Ng6 Kd2 Be6 Rg3 Kf2 g1R Nf4 Re1 Ng2 Rf4+ Bf3 Re3 Kg1 Ree4 Be2 Rc3
R2KNn1n/Rq1r2r1/P1R1PNbr/qP1P1nk1/Q1Q4b/p3q3/Rn6/8 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Nf3 a4 Ng1 a3 b4 b5 Bb2 axb2 a4 Bc5 a5 Bf5 Bh3 Bc8 Bf5 Be7 Bc2 Bf8 Ba4 bxa4 Kf2 Ke7 Kf3 Kf6 Ke4 g5 h4 c5 d4 g4 d6 f3 Kd5 g3 e4 g2 h6 f2 h7 f1N d7 a3 a6 c4 h5 c3 h6 c2 e5+ Kg5 Qd3 c1N Ne2 g1R Qd1 f5 Ke6 f4 d5 f3 Ng3 f2 Qd4 Nd3 Qc4 Ra7 Nh5 Qa5 Nc3 b1Q Nb5 Ng3 Nd6 f1Q Ne8 Qe2 Ra2 Be7 Nhf6 Nf5 b5 Qe3 Rhh2 Rc7 Rhc2 Nb2 Kf7 Rg2 d8Q Nd7 e6 Nf8 Qd6 Bd7 Qdb4 Bd8 Qa4 Nge7 Rc3 Neg6 Rc2 Qbg1 Rc3 Qeb6 Rc1 Qb7 Rc2 Rg8 h8R Rh2 Rh7 Qe3 Rg7 Be7 h7 Rh6 h8R Bd6 Qd4 Bg3 Rc6 Bf2 Qdc4 Bh4 Nd6 Bc8+ Ke8 Bd7+ Kd8 Be8 Re7 Rg7 Rg8 Bf7 Nde8 Nh8 Rd7 Bg6 Re7 Nh7 Nd6 Qba7 Rf7 Rd7+ Kc8 Q7b6 Rd8 Nf8 Nde8 Rd6 Rfc7 Rdd7 Ra7 Rb7 Rdd6 Rbd7 Ra8 Rde7 Rd7 Qa7 Rb7 Rc7+ Kd8 Q7b6 Rba7 Qb7 Qab3 Nd4 Qbb4 Nf5 Qa4 Rcd7#
3Qn2b/Pb3bBB/N3PB2/Q3N1q1/2Pr1r2/2n2PK1/rpb4p/k1Bn4 w - - 0 1 illegal: No proof kernel
6K1/1Rnrk1q1/6qB/1P1prnRq/qb1QPR2/p7/Pb1P1B2/3Rq1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
Q1n5/r1bQP3/6bq/1p5k/2Qbp1r1/5PP1/nRqRP2B/QK3bbB w - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 b5 axb5 c6 b6 Ba6 b5 Bc8 b7 Qb6 Nc3 Qc7 b6 Qd8 Nb5 Bg7 Ba3 Bh6 Bc1 Bf8 d4 cxb5 g3 f5 Nf3 e5 Bh6 e4 Bf4 Qe7 Bc1 Qe5 dxe5 f4 Ng1 f3 Nh3 Kf7 Nf4 Ke8 Ng2 fxg2 Kd2 Kf7 c4 Kg6 Kc2 g1B e6 d5 f3 a5 c5 h5 c6 h3 c7 h4 Bd2 a4 Ra3 h2 Rb3 h3 Kb1 d4 Rb2 a3 Qc2 a2+ Kc1 a1B Ba5 d3 Qb1 d2+ Kc2 d1Q+ Kc3 Na6 b8Q Nb4 b7 Ra7 Qc2 Rh4 Qa8 Bd6 b8Q Rg4 Bb6 Ne7 Bg2 Kh5 Qb1 Bd7 c8Q Bc7 Qbb7 Be8 Qd7 Bf7 Qbc6 Bg6 Qc4 Nc8 e7 Qd2+ Kb3 Na2 Qbc1 Qh6 Kc2 Qd2+ Kb1 Qd1 Rb4 Bad4 Rb2 Qc2+ Ka1 Bge3 Rd1 h1Q Rd2 h2 Qb1 Qhc1 Bh1 Bg1 Bc5 Qd3 Bb6 Qcc2 Qe1 Qe3 Qc1 Qh6 Qd1 Qb3 Kb1 Qc3 Qda4 Qc2+ Ka1 Bde5 Qcd3 Nb4 Qd8 Bf2 Q8d7 Bh8 Be3 Bc3 Qc4 Bd4 Bg2 h1B Qa6 Be1 Bg1 Bef2 Bh2 Bg1 Qaa2 Qb3 Kb1 Qa4 Bf1 Bg2 Qa1 Bh3 Bg2 Na2 Bh1 Bf1 Qd3 Qb3 Qc4 Qc2+
1bb1QBk1/R1pQb3/rQ1b1rK1/1n1qQ2R/P7/1P1P1p1b/3PBq1n/8 w - - 0 1 legal: proof: g4 e5 f4 exf4 Kf2 a5 Bh3 d5 Bg2 h5 gxh5 d4 Ke1 a4 Bf1 d3 cxd3 a3 Nf3 b5 Ne5 b4 Nc4 Be6 b3 Bc8 Nb2 axb2 a4 Ra7 Na3 bxa3 Kf2 Ra6 Ke1 Ra8 Kf2 b1Q Kf3 f5 e4 Kf7 h4 g5 e5 a2 h6 g4+ Ke2 f3+ Ke3 g3 Kf4 g2 h5 g1B h7 f2 h6 Ra6 Rh2 Nc6 Be2 f1B Ba3 Bd6 Rh5 Nf6 Kg5 Rf8 h8Q f4 h7 f3 Bc5 Qc2 Rc1 a1B Bb4 Qb2 Rc5 Bfh3 Ra5 Ba7 Qg1 Bb8 Qb6 Qd4 Bc5 Qf2 e6+ Ke8 e7 Kf7 Bb4 Ng4 Qe5 Nh2 h8Q Nd4 Bc5 Nb5 Qhg7+ Ke8 Qh7 Rf6 Qhf5 Kf7 Qd7 Kg8 e8Q+ Rf8+ Kg6 Bc3 Be3 Bcb4 Bh6 Be7 Qdc6 Qd5 Qcd7 Ra8 Ra7 Bbd6 Rb7 Ra6 Ra7 Bg5 Q8e6+ Rf7 Bf8 Bh4 Qde8 Bhe7 Q6d7 Rf6+
1N3Rr1/1kprp3/np2qR1b/1K2nb2/N4P2/P2R3b/1QPb1Pr1/QR6 w - - 0 1 legal: proof: e4 a5 b4 axb4 g3 h5 Na3 d5 exd5 g5 Nh3 f5 Ke2 h4 Nb1 f4 Ng1 h3 Bg2 hxg2 gxf4 Ra3 Nh3 Ra8 Bb2 g1R Bd4 Rf1 Ng1 Rh4 Bh8 Rxh8 Kd3 Kd7 Kc4 b3 d4 b2 h4 g4 d6 Kc6 d7 b6 a3 g3 h5 g2 h6 Na6 d5+ Kb7 d6 Nf6 h7 Rg8 h8R Ng4 Qe2 Ne5+ Kb5 Rd1 Nc3 b1B Qe1 Ba2 Nf3 g1B R1h6 Rg2 Rb1 Bh2 Rf6 Be6 Na4 Bh3 Nd4 Bg3 Nc6 Bh6 Nb8 Qg8 d8Q Qe6 d7 Bh4 Rhf8 Rd6 Qe8 Bf5 d8R Rd7 Qh5 B4g5 Qh4 Bg7 Qc3 B5h6 Qa1 Nd3 Qh3 Rd6 Rh8 Qe1 Rg6 Bg4 Qh4 Bcf5 Nd7 Qe6 Qhf6 Bh3 Qfb2 Bc3 Rf6 Ne5 Rhe8 Rc8 Nb8 Bd2 Rg8 Rd4 Rg3 Rd6 Rd3 Rd7 Rg8 Rf8 Rh8 Rf7 Re8 Rfg7 Ref8 Rg8
1n2k3/4nrQn/2p1B1B1/pb3PN1/bb2K2N/3prr2/P2PPQ1N/n6N w - - 0 2 illegal: No possible last move
2QB4/3nrr1P/6pn/bkN1N2K/4rbp1/p4bPP/P4Nr1/b1B3QN w - - 0 2 illegal: No possible last move, all moves rejected
1QR2Kq1/3prb2/6QQ/2b1nnrR/3q1Nk1/1P2P1P1/1ppp2QP/2q1N3 w - - 0 1 legal: proof: d4 a5 g3 e5 b3 exd4 Bh3 h5 Be6 a4 Bb2 h4 c4 b5 cxb5 a3 Bh3 axb2 f4 g5 Bg2 h3 fxg5 hxg2 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 c5 a4 c4 b6 d3 b7 d2 g6 c3 g7 c2 a5 Qh4 a6 Rh5 a7 Ne7+ Kd6 Nbc6 Nf3 g1Q g8Q f6 Ra4 Ne5 Nc3 Rg5 Nd5 Qh7 Rh4 Rb8 a8Q Qd4 Qa6 Ra8 Rh6 Kg4 e3 f5 Qdf1 f4 Rh5 Rb8 Qg2 Nf5+ Kc7 Ba3 Kd8 Bc5 Ke8 Ra8 Qf6 Ra6 Ra1 Re6+ Kd8 Re7 Qh6 Ba7 Ra6 Bc5 b8Q Bb7 Rc6 Ba6 Qgg6 Bc4 Ne1 f3 Nf4 Bf7 Ned3 f2 Rc7 f1Q Rc8 Qb1 Ne1 Bg8 Qe4 Qc1 Qg2 Rf7 Ke8 Re7+ Kf8 Be6 Qf6 Bf7 Qfg6 Qg8+
3rn3/Nr3rpK/1pb1p1bB/2P1P1Pk/1QB5/N1p1qrB1/1B4P1/3Q3b w - - 0 2 illegal: No possible last move, all moves rejected
Nn4bk/8/1Kpr1p2/1PQbbPp1/2b3Nb/1Rr3PQ/P1nNN3/1r1R3q w - - 0 1 legal: proof: d4 b5 c4 bxc4 b4 a5 g3 e5 dxe5 h5 b5 h4 Ba3 h3 Bb4 axb4 Bg2 hxg2 Kd2 d5 Ke3 d4+ Ke4 b3 h4 d3 f4 b2 e6 d2 f5 f6 h5 c3 e3 c2 e7 Kf7 e8N c1B h6 c6 h7 Qd5+ Kf4 Be6 e4 Ne7 Ke3 Ra3+ Qb3 d1B+ Nd2 b1B e5 Bd3 Qc4 Bf3 Qc5 Rc3 Ne2 g1R Rb1 g6 Nd6+ Kg7 Rb2 Bg8 e6 Rd1 Ne4 Bc4+ Kf2 Bg2 Rb3 Bb2 Rg1 Rb1 Rd1 Bh1 Ng5 Qe4 Nh3 Nd5 e7 Nb4 e8N+ Kf7 Nef4 Nc2 Nc7 Bh6 Ne2 Kg7 Na8 Bg2 Nhg1 Bh1 Ngf3 Bg5 Ne5 Qh4 Ng4 Bhd5 Qa3 Qh1 Qb4 Bge6 Qc5 Rd8 h8Q+ Kf7 Nd4 Rd6 Qh3 Kg7 Ne2 Bh4 Qa3 g5 Qb4 Bd3 Qc5 Na1 Ke3 Bg8 Kd4 B3c4 Qb4 Kh7 Kc5 Kh8 Kb6 Nc2 Qa3 Re3 Qb4 Be5 Qc5 Rc3
n2q4/nbb2R2/p1ppr1Q1/k1K2B1R/3Q1P1r/7p/PQP4P/2qn1BnQ w - - 0 3 illegal: No possible last move, all moves rejected
7K/qpn3PR/bP1Qqr1Q/2rB2b1/Q1p3Q1/pn1PB1pp/2P4k/R2q4 w - - 0 1 illegal: No proof kernel
1B4Q1/qNq3rK/bQ2bPN1/3k3N/2n1nPP1/b3P1Q1/pn6/n1n3N1 w - - 0 1 illegal: No possible last move, all moves rejected
k2n2B1/3rBr1P/4B2n/6p1/q1P1qqbK/1b1BRBPP/b5Bp/1Q6 w - - 0 1 illegal: No possible last move, all moves rejected
1R1n2N1/K1p3Np/1P2q1P1/2P5/bbN1p2N/nrNr3P/r1Q1r3/kNq5 w - - 0 2 legal: proof: e4 d5 exd5 b5 f4 a5 a4 f6 b4 Kf7 f5 Bb7 Bb2 Bc8 Be5 Ke8 Bd3 fxe5 f6 g6 Bf5 gxf5 Ra2 Qd6 Rb2 Qd7 axb5 Qd8 b6 Bg7 b5 Bf8 Rb4 axb4 Ke2 Kf7 Kd3 e6 Kc4 b3 g4 e4 d4 b2 b7 f4 d6 e3 g5 f3 d7 f2 h3 f1Q+ Ne2 e5 d5 e4 d6 Ke6 f7 Qe1 Nec3 Nc6 b8N Na7 Nc6 e2 Ne5 Qe7 d8N+ Kf5 Kc5 Bd7 Ne6 Nh6 Nc4 Rd8 b6 Ba4 Rg1 Nb5 Kc6 Na3+ Kb7 Qd7 Qd2 Qc1 Ka7 e1R Qh2 Qe7 d7 Re2 Qg2 Rg8 Ng7+ Kf4 Rd1 Qe6 Rd5 Bd6 f8N Bb4 Qh2+ Kf3 Ng6 Nf7 Re5 Rc8 d8N Ra8+ Kb7 Rf8 Nc6 Rfd8 Nce7 Rd3 Ng8 Ra6 Rd5 Ra8 Rd8 Ra5 Ncd2+ Ke3 Rb8 Kd4 Nc4 Ra8 Nh4 Ra6 Nbd2 b1R g6 Rb3 Ndb1 Ra5 Rc8 Nd8+ Kb8 Rg5 Ka7 Rgg3 Ra8 Rb2 Rb8 Ra2 Nd5 Rb3 Ndc3 Rd3 Nb5+ Kd5 Na5 Ree3 c4+ Kc5 Qc2 Re2 N5c3 Kd4 c5 Rd1 Nc4 Rdd2 Qd1 Kd3 Qf1 Kc2 Qe1 Rd3 Qg1 Red2 Qg2 Rf2 Na5 Kb2 Nc4+ Ka1 Qh2 Rfc2 Qe2 Rcd2 Qd1 Rf2 Qc2 Re2
5R1R/qb2k1Bn/1rp2pP1/1BPBB2p/K1P3bn/4n1rP/2R2R2/3q2r1 w - - 0 2 legal: proof: e4 b5 a4 f5 axb5 e5 c3 Bb4 c4 Bc3 dxc3 Kf8 Qd5 Ke8 Qd4 exd4 f4 Kf8 e5 Qg5 Nh3 Qh5 Ng5 Qe8 Nd2 Na6 Nge4 Qe7 Nf6 Qd8 Nde4 fxe4 f5 Ke7 Nd5+ Ke8 f6 Nb8 f7+ Kf8 Nf6 gxf6 Bd3 Ke7 Be2 Qe8 Bf1 Qd8 Kd2 d5 Kc2 a5 Kb3 h5 f8R d3 g4 c6 e6 d2 h3 d1N g5 a4+ Ka3 d4 b4 d3 c5 e3 g6 d2 b6 e2 b5 e1R b7 Nh6 b6 Ne3 Ra2 d1B Rc2 Bg4 Bb5 Nd7 b8B Rg1 c4 Nhf5 b7 Nh4 Rhh2 Ra5 Kb4 a3 Be5 a2 b8R a1Q Rhf2 Ra3 Bd2 Rd3 Ra8 Qd1 Ka4 Bb7 Bc1 Qb8 Bd2 Neg2 Bh6 Rg3 Bg7 Rh7 Rg8 Nf8 Rh8 Ke8 e7 Ne3 Ra5 Kd7 e8B+ Ke7 Bf7 Qa8 Bd5 Qa7 Bh6 Rf7 Bg7 Nh7 Ra6 Rf8 Ra5 Rb8 Ra6 Bbc8 Ra5 Rb6 Ra6 Qd7 Ra8 Bb7 Raf8 Qc7 Ba1 Qb8 Be5 Qa7+
3KbnBb/Nnrp4/1PN1Q3/B1R2r2/3PP1bR/5b1P/1rqrq1P1/1k6 w - - 0 1 legal: proof: f4 e5 a4 exf4 c3 b5 Ra3 h5 axb5 c5 b4 cxb4 Ra6 g5 Rh6 h4 Qc2 h3 Qf5 f3 Qf4 gxf4 Rxh3 Ke7 Rh7 Ke8 Kf2 Ke7 d4 Kf6 c4 Kf5 h3 Ke4 e3 f5 b6 a5 c5 a4 c6 b3 c7 a3 Rh5 b2 Bd2 a2 Bb4 a1R Rh4 Nf6 Bc3 Na6 Ne2 Kd3 Rh2 Kc2 Ba5 Ne8 Be1 Nc5 Ba5 Ra2 Rh1 Bg7 Nec3 Ne6 Rg1 Nf8 Nb5 Nd6 Rh7 Bb7 c8Q+ Qc7 Nd2 b1B Qd8 Rb2 Bc3 Raa2 Ke1 f2+ Ke2 Rg8 Qe7 Bh8 Ba5 Kc1 Na7 Qc2 Qe4 Rg6 Kf3 Rf6 Bd3+ f1B Kf2 f3 Kg3 f2 Kh4 f4 Kg5 f3 Bc4 Rf5+ Kg4 Rc5 Kf4 Rc7 Qe6 Be4 Kg5 Bg6 Rh1 Be8 Rh2 Be2 e4 f1Q Rh4 f2 Rh1 Bg4 Nf3 Qe1 Bb3 f1R Ne5 Qed1 Nec6 Qde2 Be1 Rf4 Rf1 Rf7 Rf5 Bf3 Rc5 Rf5+ Kh6 Ra6 Ba5 Ba2 Bc4 Kb1 Bd5 Rf6+ Kg5 Bb3 Bb4 Raa2 Ba5 Rf7 Qe7 Rf6 Bg8 Be6 Qf7 Beg4 Qg6 Rf7 Qe6 Rg7+ Kf6 Rg5+ Ke7 Rf5 Qf7 Ra3 Qg6 Rd3 Qe6 Rd2 Kd8 Nb7+
K2B3n/2P2r1R/5P1r/NQr1rr1N/1bn2P2/1B2n1R1/2P1pknP/2n4b w - - 0 1 legal: proof: d4 c5 dxc5 a5 f4 h5 b4 axb4 g4 hxg4 Qd4 f6 Qe5 Qb6 e3 Qe6 e4 Qf5 exf5 fxe5 Kf2 Kf7 Ke3 Kf6 Ke4 d5+ Kd3 b5 a4 g5 c6 b3 a5 g3 a6 d4 Ke4 b2 Kd5 e4 c7 e5 a7 e3 Bh3 g2 Ne2 g1R Ra6+ Nc6 Ng3 e4 Rb6 e2 Nf1 e1N Nbd2 b1R Ra6 b4 Ba3 d3 Ra4 g4 Ng3 e3 Bg2 b3 Ndf1 d2 Ra6 d1N Bb4 b2 Be4 Ne7+ Kd6 Ne5 Bd5 Rh6 Bf7 Ng2 Bc3 Bb7 Bh5 Re8 Ba5 Nc4+ Kc5+ Bc6 a8Q Ng6+ Kd4 Re5 Qb7 Bb4 Nd2 Nh8 Qb8 e2 Bg6 Nde3 Bf7 Ra1 Ra8 b1N Nb3 Nc3 Qb5 Na2 Be6 Rgb1 Rg1 Nc1 Bb6 Bf3 Bc5 Ra5 Re8 Rba1 Re7 R1a3 Rh7 Ba8 Na1 Rc3 Nb3 Be4 Nf1 g3 Bf7 Ra8 Na5 Rf8 Bd5 Rf7 Be6 Nb2 Bb3 Bc6 Bd6 Rcc5 Bf8 Nbc4 Bg7+ Ke7 Bf6+ Kd6 Bd8 Bf3 f6 Ke6 Qa6+ Kf5 Qb7 Kg4 Qb5 Nh4 Rg2 Kh3 Rg1 g2 Ng3 Kg4 Nh5 Be4 Rd1 Kf3 Rd3 g1R Rc3 Kf2 Rd3 Nd1 Rg3 Rf5 Ng7 Bh1 Nh5 Ng2 Ke4 Bd2 Kd4 Nde3 Ke4 Rce5+ Kd4 Nd5 Kc5 Bb4+ Kc6 Nde3 Kb7 Rd1 Kb8 Rdd5 Ka8 Rc5
r3k1B1/2rbN3/R7/3p2PP/N1nB3p/b1bP4/Pn4bP/1rQbRK1b w - - 0 1 legal: proof: c4 e5 g4 h5 b4 g5 b5 e4 d3 e3 Qd2 a6 f3 exd2+ Kf2 axb5 f4 bxc4 fxg5 h4 Nh3 c3 Ng1 Qf6+ Ke3 Qg6 Kf2 Qh5 gxh5 Ra5 Kg2 Ra7 Kf2 Ra8 e4 d1B e5 f5 e6 b5 e7 d5 Bb2 c5 Bc1 b4 Bg2 b3 Bf3 f4 Ba3 c2 Nc3 c1R Ke1 b2 Ne4 b1B Bg4 f3 Kf1 c4 Bc5 c3 Ba3 c2 Ke1 f2+ Kf1 Nc6 Bc5 Bg7 Ng3 Ne5 Ba7 Nc4 N3e2 Bd7 Be6 Bc3 Ng3 Nh6 N1e2 Rh7 Bc5 Nf7 Bd4 Nb2 Nf5 Nd6 Bg8 Ndc4 Rg1 Rg7 Rg4 Rf7 Re4 Rg7 Re6 Rf7 Kg2 f1B+ Kf2 Bg2 Ra6 Bh1 Kf1 Rh7 Neg3 Rg7 Ne4 Rh7 Nc5 Bdf3+ Kf2 Bfg2 Na4 Rg1 Ke2 c1B Kf2 Bc2 Rb1 Bf4 Re1 Bd6 Ke2 Bc8 Kf2 Ba3 Ke2 Kd7 Kf2 Bd1 e8Q+ Kc7 Qe3 Kd7 Ne7 Ke8 Qc1 Be6 Nc6 Rc7 Ne7 Bd7 Re4 B1g4 Ree6 Rd1 Re1 B4f3 Qf4 Ra1 Qc1 Bd1 Kg1 Rb1 Kf2 Be4 Kf1 Beg2+
2k3q1/qn2Q3/1PP4b/4p1r1/1R1Bn2p/1BprP2P/pRKrP1b1/1N4N1 w - - 0 1 legal: proof: c4 c5 g4 f5 a4 fxg4 b4 Qb6 Qb3 cxb4 Qc3 Qe3 dxe3 b5 axb5 bxc3 Kd1 Kd8 f4 d5 f5 a5 f6 h5 c5 g5 h3 e5 b6 a4 f7 d4 Na3 d3 Rb1 h4 Bb2 g3 Kc1 d2+ Kc2 d1R Bg2 g4 Rh2 Na6 Bc1 Rh5 Be4 g2 Bb2 g3 Nc4 a3 Rh1 a2 Rc1 Bh6 Bc6 Rg5 Nd6 Bb7 Ba3 Nf6 Nc4 Kc8 Bd5 Ne4 Rb1 Rd3 Rb2 Rb8 Nf3 g1Q Ncd2 g2 Nb1 Qf2 Bb4 g1Q Bb3 Bd5 c6 Nac5 Ba3 Nb7 Bc5 Qg4 Rd1 Qfg2 Bd4 Qd7 Rh1 Qe7 Ng1 Qa3 Bc4 Qa7 Rb4 Qg4 Bb3 Qe6 f8Q+ Qe8 Qf7 Qg8 Qe8+ Nd8 Rc4 Nd6 Qe7 N8b7 Nd2 Bg2 Rb4 Ne4 Bc5 Rd8 Ngf3 Ra8 Rb1 Kb8 Rb2 Rd7 Nb1 Rd1 Bd5 Kc8 Qh7 Kd8 Ng1 Rc8 Qg7 Rc7 Qe7+ Kc8 Bf7 Rcd7 Bb3 R7d3 Bd4 R1d2+
1qq2Qn1/N2nqNP1/2P5/4qPrn/B4P2/b1Pq2R1/1BRn3n/3rkbK1 w - - 0 1 illegal: Other
kr2qbrn/3q2Pq/4r1Pq/2P1P3/1RPN3Q/1Kn3b1/1bR5/NbBB3b w - - 0 1 illegal: Other
nBq2N2/1Q3Pb1/2NP1b2/q4PPb/2r2kr1/1BqnRr2/R1n2PK1/1r2b3 w - - 0 1 illegal: Other
1r6/2q3n1/2BqRn1b/3qN1bP/2Q2KNn/2P2P1k/pBnPP1b1/2Rr2n1 w - - 0 1 illegal: No possible last move
nrq5/BR3n1r/3P1QqP/2K2b1P/B1PPN2b/2R1rp1b/N5n1/k2r3r w - - 0 1 illegal: Other
4NR2/PPn1PQb1/2rb2p1/Rn1B2N1/2b2K2/P6q/1rb2BrP/1b1b1kn1 w - - 0 1 illegal: Other
N1Q1q1q1/p2b1r1n/3bP3/r1B2bP1/qbPn2N1/3PR3/P4RB1/1kb1q2K w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 Ne2 c5 Ng1 cxb4 f4 gxh4 Bc4 e5 Nf3 e3 Ng1 e4 Ba6 Qd5 Bf1 Qe5 fxe5 Bc5 Bb2 Bd6 Bc1 Bf8 g4 Kd7 c4 Kc6 e6 Kc5 Nf3 f5 Qa4 b5 Qb3 h5 Bh3 e2 Kf2 e1B+ Kg1 f4 Nh2 Kd4 Qg3 b3 Ba3 f3 Bc5+ Kd3 Bf1+ Kc2 Nc3 f2+ Kg2 b4 Rb1 e3 Ne2 b2 Ng1 h3+ Kf3 e2 Bb6 b3 Qe5 h4 Rd1 b1B Bg2 f1Q+ Bf2 b2 Qg3 Nf6 Qd6 Nc6 Qc7 Rh5 Qd7 Bd6 Qb7 Nh7 Qb5 Bd7 Qb8 Nd4+ Ke3 Ra5 Ngf3 Qg1 Qc7 Rf8 Nf1 h2 Ne5 h3 Ke4 Rf7 Be3 Bg3 Qc8 e1B g5 Bf4 Ng4 Qf2 Rg1 h1Q Qd8 h2 Qc8 Qg3 Bf2 Qb3 Be3 Ne2 Kf3 Qa4 Bc5 Nd4+ Ke4 Bf2 Re1 B4e3 Re2 Be1 Rf2 Bef4 Nfe3+ Kc1+ Kd5 Bf5 d3 b1Q Rgf1 Qbb3 Rf3 Qb8 R1f2 Bb4 Rh3 Bg6 Rhf3 Kb1 Rg3 Rf5+ Ke4 Qe1 Rgf3 h1Q Rh3 Nc2 Kf3 Rf7 Nd5 Bf5 Nb6 Bc1 Na8 Qbb5 Rg3 Qh6 Rh3 Qf8 Rg3 Qg8 Rh3 Bf8 Kg3 Nd4 Kh2 Bd6+ Rg3 Qe2 Kh1 Qb8 Re3 Qd2 Qc6 Qbe8 Qc8 Qe1+
2r5/rP4b1/k2p2PK/rRb1N3/Q2P2qn/P1n2bN1/1BP1b3/1n2BqRr w - - 0 1 illegal: No proof kernel
QR4rB/2NPpb2/2NPb1B1/bq1n2PP/4Rb1b/6pb/KP3k2/1r1nq3 w - - 0 1 illegal: No proof kernel
N2q1b1Q/2P2b2/2BpPb2/qnk3b1/2b2PP1/1r1n1R1K/NBRpPb1r/8 w - - 0 1 illegal: No proof kernel
4krn1/1B3rb1/PRp1pq2/B1r5/3Rbnr1/N2Pn1q1/1P1nP2P/1KN1Q3 w - - 0 1 illegal: No proof kernel
rR4Qq/3K1Nq1/2Pr1BpP/1nq4N/2P5/bB1n2P1/Pp2r1q1/1k1n1Rn1 w - - 0 1 illegal: No proof kernel
4k3/r3P3/b2BprRn/1PP1rPn1/pQ3K1b/n2pN1P1/2NRrrB1/7q w - - 0 1 illegal: No proof kernel
2R3K1/3R4/bPp2p1b/B1nr1B1N/3P1qPn/1pb5/1kbN1PP1/2rrn2Q w - - 0 1 illegal: No proof kernel
n3kb1n/1qB4R/P1P1pP1b/2P3p1/NrPn4/1B3NKp/5nbr/rQ3R2 w - - 0 1 illegal: Other
B1n1q2b/2nPrR1p/1B3Nkr/1PP2R2/P2r1P2/2p3pn/2KbQbb1/2N5 w - - 0 1 illegal: No proof kernel
2n4r/KP1nk3/1P3RP1/1qPpBRbB/5q2/2QPppq1/7q/1Nbbr2N w - - 0 1 illegal: No proof kernel
r2b1n1n/Bpr2R1n/p1k1P1Pr/1bPqR1N1/B4Kq1/1PN1p3/Q1P5/1n6 w - - 0 1 illegal: No proof kernel
5rn1/1pB1Ppn1/BPb2R1q/3b1brr/5p1R/2P1bqPQ/K5NP/2k1N3 w - - 0 1 illegal: No proof kernel
KQb2b2/PR1pq2n/1n1P3q/R1q1BP2/1N2r3/r1PqrN1B/P1p3p1/7k w - - 0 1 illegal: No proof kernel
5qRr/1P1KQB1R/3r2bp/Bq1r3P/PP1pnb2/N1b3b1/2N1Pq1p/2k5 w - - 0 1 illegal: No possible last move, all moves rejected
2r4k/2PnB1bP/3Npb1p/Rb2Pp2/n6B/3bQN2/1rn1P1rP/K4Rn1 w - - 1 2 illegal: Other
R1n5/1prq1NPb/1BP3p1/n3RBPk/2p2P1N/3pbq2/1PQ2rnK/6b1 w - - 0 1 illegal: No possible last move
bNRb3k/3Rb3/1ppPn1K1/4pQP1/4Prb1/1P1rP1pN/bBB5/2q3q1 w - - 0 2 illegal: No proof kernel
q2rb1BR/3pN3/1kN5/1P1Pp1q1/Q1bpB1qb/n2bPP2/p2nP1R1/2K5 w - - 0 2 illegal: Other
r3Nn2/p3np2/bp1q2RB/Kn3k2/2pr1P2/2N1P2P/P1P1B1rQ/2q1R2n w - - 2 3 legal: proof: d4 h5 g4 hxg4 b4 e5 b5 exd4 b6 Nc6 Bb2 Ba3 Bxa3 Na5 Bc1 Nc4 Bg5 Nxb6 Bd2 Nc4 Bc1 Na5 Kd2 Ke7 f4 Ke6 h3 g5 e3 c5 Rh2 d5 Be2 g3 Bh5 g2 Na3 g4 Qe2 c4 Qf3 d3 Kc3 d4+ Kb4 d2 Qf1 d1N Qf2 g3 Qd2 d3 Bg6 Nf2 Rh1 Nb3 Qe1 d2 Bb2 d1N Qe2 Bd7 Bh5 Nc3 Bf3 Ne7 Qd1 Nc5 Qd6+ Kf5 Bh5 Bb5 Qd2 Qd6 Re1 Ba6 Ka5 Nd7 Ne2 g1Q Nb5 g2 Nc7 Nb5 Ne8 Nf8 Nc3 Rh6 Rh2 Nh1 Be2 Qf1 Ba3 g1R Rg2 Rf6 Rg8 Rg2 Rg6 Re6 Bc5 Re4 Bd4 Qg1 Bg7 Rd4 Bh6 Qf1 Ra1 Qc1 Rb1 Qb2 Re1 Qc1 Bf1 Rg1 Qh2 Rg2 Be2 b6+
k1bq3N/2P1p2K/2r1r3/p1pNPp1P/r4bR1/2P2P1R/r2p1n1Q/n5BB w - - 0 1 legal: proof: g4 b5 a4 bxa4 d4 h5 d5 hxg4 b3 axb3 Ra3 c5 Ra6 Qc7 Ra1 Qc6 dxc6 Rh3 Bg2 Rh4 Bf1 Rh8 Kd2 Kd8 Kd3 Kc7 Ke4 d5+ Kf4 g5+ Ke5 f5 h4 b2 e4 g3 c3 g4 f3 g2 h5 d4 Bb5 d3 Qe2 g3 Ra2 Rh6 Rh4 Na6 Bc4 Kb8 Nh3 g1R Kf4 g2 Kg5 Nf6 e5 Ng4 Na3 b1R Nc2 Rb4 Ne3 Ra4 Nf4 Nb4 Ng6 Nf2 Rg4 Nc2 Nh8 Re6 Nd5 Na1 Be3 a5 Rc2 Ra6 c7+ Ka8 Bb5 Bg7 Rb2 Bf6+ Kg6 Bg5+ Kh7 Rac6 Rbb4 d2 Rh4 Rf1 Rbg4 g1Q Rh3 Bf4 Bc4 Nd1 Qh2 Nf2 Bd3 Rb1 Bf1 Rb2 Bg2 Rba2 Bh1 Qf1 Bd4 Qd3 Be3 Ne4 Bg1 Nf2 Nf6 Qd7 Nd5 Qd8
2n2Rbr/PQPrr3/1n2Ppbp/4P1pN/2K2pP1/2R1Bp1N/5p2/3Bk1q1 w - - 0 1 illegal: Other
R1B1q3/1PK2qn1/r2R1qP1/P1p1Q2p/pp4N1/Pb2b2p/p1N2Pn1/2B2k2 w - - 0 1 illegal: Other
2q2n1R/Qprqb3/r2Pb2B/3r2RK/2B1Pb1N/2pqn3/PPPnqk2/4N3 w - - 0 1 illegal: No proof kernel
qRb5/Q1p3B1/n1k2bnP/2N2pb1/KPP1n1rP/N2q1P2/3b1bB1/2rRn3 w - - 0 1 illegal: Other
b1KRnb2/1p3Pb1/2kB1p1n/2Np3b/1q2B2n/1PPQ3r/1P1NrP1n/1R5n w - - 0 1 illegal: Other
1n1bb3/p1r1P2K/1pRN1Bb1/3Pr1P1/PPBn1b2/rRQ1Nk2/prn5/3q4 w - - 0 1 illegal: No proof kernel
2nqNK1b/P2Ppp2/1R1p4/4nb2/1BqkbPB1/3Pr3/1pRq2PN/n4rQ1 w - - 0 1 illegal: Other
5b1N/1p6/P2k2qQ/1p1rn3/K2N1rPB/pP1Br1rR/PpR2nP1/br3b2 w - - 0 1 illegal: Other
4nK2/p1P1b3/P1Qr1k1B/nPRnN3/b2R1B2/q1N2rpp/1p3rPP/4b1b1 w - - 0 3 illegal: No proof kernel
2rb4/bn2qq1p/P1q3Q1/Kb2P3/5NpN/R1nP2P1/1Bp2kpP/R1r2B1q w - - 0 1 illegal: No possible last move
1rB2R1n/4qp1P/1BQ1p1p1/1pn5/1NPNR1b1/K3b1P1/1Pnp1P1r/b5qk w - - 2 3 illegal: No proof kernel
2r1B3/3n1B2/P2RP2r/P1k4q/3rPQ2/1rr1qb2/2bpR1NP/KB4b1 w - - 0 1 legal: proof: f4 e5 fxe5 a5 d4 g5 g4 c5 b4 h6 bxa5 Na6 Bf4 Nb8 Qc1 cxd4 Qa3 Nc6 Qd6 Na7 Nc3 Nb5 Ne4 gxf4 Qb8 Nc3 g5 h5 Nf2 Nd1 Ng4 hxg4 Kxd1 Rh6 Ke1 Rh8 Kd1 Ke7 Kc1 b5 Kb1 f5 e4 d5 c4 d3 a4 b4 g6 d2 c5 d1B a6 d4 c6 d3 a5 g3 g7 g2 c7 f3 Ra2 f2 Rc2 f4 Qa7 b3 Ra2 b2 Qe3 f3 Ra4 Qd5 Rd4 Rh6 Qg5+ Nf6 g8B Bg4 e6 Kd6 c8B Kc5 Ne2 g1Q Qh4 Nd7 Bh7 Qh5 Qf6 Bc2+ Ka2 b1R Bg6 Rb3 Bb7 Rc8 Nf4 d2 Bd3 f1R Ng2 f2 Qf3 Rc1 Rd6 f1R Bc6 Qe3 Qf4 Rf3 Bf7 Rg3 Rg1 Bf3 Re1 Bg7 Bcb5 Bd4 Re2 Rc3 Kb2 Rb1+ Ka2 Rbb3 Ka1 Rg5 Bc6 Rd5 Bcb5 Bf6 Bc6 Rd4 Bcb5 Bh4 Bc6 Bf2 Bcb5 Bd1 Bb1 Bg1 Ba4 Bc2 Bb5 Nf6 Bbe8 Nd7
b2Q4/1n1PP2k/N1r5/pKR1p1Rq/pP1Nb1Bn/Rn1P4/1P4q1/q7 w - - 0 1 legal: proof: f4 g5 c4 d5 h4 gxh4 a3 a5 d3 e5 f5 Bb4+ axb4 f6 Be3 Ra6 Bb6 a4 Ba5 b6 cxd5 bxa5 e4 Re6 fxe6 f5 Qf3 fxe4 Qh5+ Kf8 Qd1 Ke8 Kd2 Kf8 Kc3 Kg7 Kc4 c5 g4 h5 e7 e3 d6 e2 d7 e1Q g5 h3 g6 h2 Qc2 h4 Bh3 Nc6 Nc3 Rh6 Rd1 Bb7 Na2 Qe8 Bg4 h3 Qe2 Ba8 Bh5 Nd8 Qg4 Nb7 Kb5 c4 Ra1 c3 Nc1 c2 Nb3 c1N Nc5 Nb3 Ra3 Qa1 Nf3 Kh8 g7+ Kh7 Rf1 h1Q Rc1 h2 Na6 Qg2 Nd4 h1B Rc5 Rc6 Qh4 Qeg6 Bg4+ Nh6 g8R Qh5 Rg5 Nf5 Qf2 Nh4 Qf8 Qc2 Qe8 Be4 Qd8 Qg2
1b3b1n/2R2P1p/1R1Pr1pB/p1brQ2K/4PP2/6bR/1P1B1nk1/2b4N w - - 0 1 illegal: No possible last move, all moves rejected
B4Q1q/2R1Nb1n/1npb1r2/1Pk5/PnPq2P1/2N1N2P/2B2bK1/n1r3r1 w - - 0 1 legal: proof: d4 b5 c3 b4 Bg5 b3 g3 Nc6 Bh3 Nb8 Bf5 h6 Be4 h5 g4 h4 Bf4 Rh5 Bd6 Rh8 Bg3 hxg3 a4 g5 f4 e5 dxe5 a5 fxg5 Rh3 Bc2 bxc2 b4 Ra7 b5 Rh8 Ra2 Ra6 Rb2 Ra8 Rb4 axb4 Kf1 Ke7 e4 c1R c4 d5 g6 f5 e6 Kd6 e7 c6 e8B g2+ Kf2 d4 g7 b3 e5+ Kc5 e6 d3 e7 b2 Na3 b1N Qb3 d2 Qg3 d1Q Ne2 g1B+ Kf3 f4 Bg6 Nc3 e8B Nf6 g8N Na2 Bd7 Bd6 Bgf5 Nh7 Bde6 Nb4 Qe1 Nd7 Nb1 Qd4 Nec3 Bf2 Bc2 Nb6 Nd1 Q8f6 Bef5 Be6 Qf1 Bf7 Nbc3 Rf8 Kg2 Qg7 Bc8 f3+ Kh3 Qge5 Ne7 Bg8 Ned5 Bh4 Qe2 Nf6 Bb1 f2 Bb7 f1N Kg2 Nd2 Qf3 Bf2 N1e3 Nb3 Ba8 Na1 Bc2 Rh4 Qf4 Qh5 Qh6 Rf7 Qf8 Qh8 Ned1 Rh6 Re1 Nh7 Re7 Rh4 N1e3 Rf6 Rc7 Bf7 Ne7 Rh3 Nf1 Re3 h3 Ree1 Ne3 Rg1#
3R3b/2k1prb1/P4nb1/1Qn3rP/6Pn/2P4r/2r1PBqN/1N1qRKN1 w - - 0 1 legal: proof: d4 g5 b4 c5 f3 cxd4 b5 g4 b6 axb6 Ba3 b5 Bc1 b4 g3 h5 Bg2 f5 Bh3 f4 gxf4 h4 Bg2 h3 fxg4 hxg2 h4 d5 a4 Kd7 c3 b5 a5 d3 a6 d4 f5 d2+ Kf2 d3 f6 b3 f7 b2 Na3 b1R Rh3 b4 Nb5 b3 Rg3 b2 Na3 Nf6 Qe1 d1R Bf4 d2 Nf3 g1B+ Kg2 Bg7 Bg5 Kc7 f8N Rbc1 Ra2 b1N Qf2 Qd5 Nh7 Nbd7 Rb2 Rc2 Be3 Nc5 Ng5 Rf1 Rb8 d1Q Nh3 Nd2 Nb1 Bf5 Rd8 Bg6 Qe1 Bh2 Ng1 Rh7 Rh3 Be5 Rh1 Rh5 Qg3 Rg5 Bf2 Rb8 Qf4 Rc8 Qc4 Qc6 Rd6 Rh8 Qb5 Rh7 Rd5 Qa8 Nh2 Nf3 Rd8 Bh8 Be1 Rf7 h5 Nh4+ Kh3 Rf3+ Bg3 Nf5 Kg2 Qe4 Bf2 Rh3+ Ngf3 Qa8 Re1 Nh4+ Kf1 Ng8 Qb4 Beg7 Ng1 Nf6 Qb5 Qg2#
2kr3K/P2r3R/1Pp5/1r3Rb1/3nBbP1/qnQ3nP/1NP1b2n/N1R1r3 w - - 0 1 illegal: No proof kernel
4K2k/b1PNPn2/q4p1B/B3qb2/q3B2P/R1PprR2/5bP1/q1rr3Q w - - 0 1 illegal: No proof kernel
rn1b1nNn/2PN1K2/1PQqBB2/3pP1bb/1P6/n5pP/5k2/b1RBn3 w - - 0 1 legal: proof: f4 a5 b4 c5 e4 h5 a4 e5 d4 exd4 g4 hxg4 e5 b5 axb5 Ra6 f5 Re6 Ra3 c4 Rd3 cxd3 fxe6 Qb6 Qe2 Qc7 Qd1 Qd8 Kd2 Ke7 c4 d5 b6 g5 h3 f5 c5 f4 c6 a4 c7 a3 Qf3 a2 Qe2 a1B Bb2 f3 Qe3 f2 Qe1 g3 Na3 g4 Nf3 g2 Qe3 g1B Bc3 g3 Bb2 Nf6 Nb5 Nh7 Ba3 Qd6 Bg2 f1N+ Ke1 d2+ Ke2 d1N Kd3 Nd2 Bf1 Nc4 Nh2 Nc3 Qc1 Be3 Ng4 Bg5 Nh6 Ne2 Na7 Bd7 Bg2 Be8 Bf3 Bh5 Qc2 Rg8 Bc1 Na3 Qc6 Nf4+ Kd2 d3 Ke3 d2 Bd1 Bg7 Rf1 Re8 Re1 B7f6 Ng8+ Kf8 e7+ Kg7 Rh1 Kg6 Re1 Rd8 e8B+ Kf5 Bf7 Nf8 Rg1 Re8 Rf1 Bd8 Be6+ Kg6 Nf6 Kh6 Nc8 Kg6 Ne7+ Kh6 Bdg4 d1N+ Kf3 Ne3 Neg8+ Kg6 Nd7 Nec2 Bd2 Ne1+ Ke3 Nf3 Rc1 Ne1 Bf3 Bgf6 Bd1 Kg5 Qc3 N4g6 Kd4+ Kh4 Bh6 Bfe7 Bg7 Kg5 Bf6+ Kf4 Bh8 Bg5 Bg7 Qe7 Bf6 Qg7 Kc5 Qh6 Qc4+ Ke3 Kd6 Kf2 Bg7 Bdf6 Qc6 Rc8 Bh8 Bd8 Bf6 Na6 Qb5 Ra8 Qc6 Nb8 Beg4 Nh7 Ke6 Qf8 Bf5 Qd6+ Kf7 Nhf8 Be6 Nh8+
1b1n4/p1N4n/3kN1rP/Pb6/P2PBRnP/n1pQ3q/4Bn2/q1KN3n w - - 0 1 legal: proof: g4 b5 c4 d5 a4 dxc4 a5 h5 gxh5 Na6 b3 Rb8 Bb2 Rb6 Bg2 Rg6 Bf1 Rg3 Bc1 Rc3 Bg2 Rc2 Bh3 Ra2 Bf1 Ra4 bxa4 Bd7 Ba3 Bh3 Bc1 Bc8 d4 e5 Ra3 e4 Bf4 f6 Be5 Bg4 Rd3 exd3 e4 Bf3 Bf4 Bg2 e5 Bb7 e6 Bc8 Be5 fxe5 Kd2 Ke7 f4 c5 h4 g5 h6 b4 f5 b3 f6+ Kd6 e7 c3+ Kc1 c4 e8B e4 f7 g4 Be2 c2 Bd7 e3 Bf3 g3 Ne2 g2 Bb5 g1Q Bg2 d2+ Kb2 c1N Na3 c3+ Kb1 b2 Qe1 d1N Nf4 e2 Qf1 e1N Bd5 Nf6 Bbc6 Nc2 Ng6 Nce3 Nc2 Bd7 Qh3 Nc7 Bf3 Neg4 Ne3 Ndf2 Bfe4 Qc8 Bc2 Ncd3+ Qf1 Nh7 Bd1 Ne6 Be4 Rg8 Be2 Nd8 Ne7 Bb5 N7d5 Rg6 Nd1 Qe6 Kc2 b1N Nc7 Qf5 Rh2 Nh1 Rf2 Bg7 f8N Be5 Rf4 Ndf2 Kc1 Na3 Bc6 Qd3 Nfe6 Qh3 Be4 Kd7 Na6 Bb8 Nac7 Kd6 Qe1 Qgg3 Qd2 Qd3 Qe3 Qc4 Qf3 Qa2 Qd3 Qa1+
5b2/2Q1p3/nPP2r2/r2n2P1/1p1Prb2/1NRK2p1/1B1nP3/1B1kqnRB w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 g4 h5 g5 g6 c4 Ba6 Qc2 cxb4 c5 b3 Qc4 b4 Na3 Bb5 axb5 dxc4 Nc2 Qd5 Ne3 Qd4 f5 Qd7 fxg6 Qd8 Ng4 hxg4 h4 Kd7 d3 Ke6 Kd2 Kf5 g7 Kf4 b6 f5 c6 a5 h5 a4 h6 b2 h7 b1N+ Kc2+ Nd2 Rh6 Ke3 Rh1 g3 Nf3 f4 Nd4 a3 Rh2 c3 Rh3 f3 Rh2 f2 Bb2 a2 Rd1 a1R Bg2 f1N Rh3 R8a5 Bh1 Na6 Rc1 Nf6 g8B Nd5 Nb3 Qa8 d4 Qa7 Kd1 c2+ Ke1 R1a3 Bf7 Rg8 h8Q Rg6 Qf6 Rh6 Qd6 Rf6 Qc7 Qa8 Bg6 Qa7 Ra1 c1B Bb1 Qa8 Kd1 Kf2 Kc2 Ke1 Kd3 Kd1 Rh8 Nc4 Ke4 Bf4 Kd3 Ncd2 Rh2 Qc8 Ra2 Qh3 Rg2 Qh2 Rg1 Qf2 Ra1 Qe1 Ra2 Nc3 Ra1 Re5 Ra2 Raa5 Ra3 Re4 Nc1 Nd5 Rc3 Be5 Nb3 Bf4
2q2rbk/3NP1r1/r3b1P1/1P3P2/2BbQ3/3Pn1p1/pbb2p2/B1RBN2K w - - 0 1 illegal: No proof kernel
2K1Q3/PR2R2P/1p1r1kBP/1r1P2qq/3b4/bPr1n1N1/p2pN3/1R4bb w - - 0 1 illegal: No proof kernel
3B3N/2n1P2P/1pQ1Pk1q/K1p1b1bn/1P1R3q/R3Rb1p/P4qb1/3N1q2 w - - 0 1 illegal: No possible last move, all moves rejected
1QR4b/1r1B2Np/1B4pq/p1B5/1Pn3qP/kPR3qp/P2nP2b/5Kn1 w - - 0 1 illegal: No proof kernel
N3b2q/Prn1b3/2pq2R1/2K1k2n/BP3q1q/2P2n1R/R1q1PP1Q/1rN4r w - - 0 1 illegal: No possible last move, all moves rejected
nR1Qq3/B3qp1r/P2N1b2/5R1b/r2bqPr1/P3P1b1/1R2n1P1/K3nkN1 w - - 0 1 legal: proof: c4 d5 b4 g5 d4 a5 bxa5 e6 h4 gxh4 e3 Ra7 Bd3 Ra6 Be4 dxc4 d5 Ra7 d6 Ra8 Bd5 exd5 Kd2 Kd7 Kc3 Kc6 Kb2 Kc5 f3 b5 a3 h5 d7 b4 Qf1 h3 Qe2 c3+ Ka2 d4 Qd3 c2 Qf5+ Kc4 Bb2 c1B Qg5 Kd3 Qg3 c5 Qe1 c4 Bc3 h4 Qf2 h2 Nd2 b3+ Kb1 h3 Bb4 b2 Nb3 c3 Be7 c2+ Ka2 Rh7 Bd6 Qe8 d8R Nf6 Qe1 Nh5 Qb4 Na6 Bb8 Nf4 Rd7 Nc7 Qc5 Bd6 Qd5 Ne2 Nd2 Bg3 Re7 Bg4 f4 Bh5 Ba7 b1N Rd7 Bb2 Re7 c1B Nf1 Nd2 Rd7 Nf3 Qc5 Ne1 Bb8 Bd2 Qc1 Bdc3 Rd8 Rg7 Nf3 Rg4 Rg1 h1Q Rd7 h2 Rd5 Ra6 N1d2 Na8 Rf1 Qg1 Re5 h1R Ba7 Qf2 Ng1 Qf3 Nc4 Qe4 Nd6 Qe7 Qb1+ Kd2 Nb7 d3 Nd6 Bd4 Rf5 Bf6 Rf3 Bbd4 Qb8 Qe8 Kb1 Kd1 Rf2 d2+ Ka2+ Kc2 Rd5 Kd3 Qc7 Nc1+ Kb1 Bg6 Nc4 Rh7 Qd8 Bh5 Rf5 Q4e7 Ra2 d1Q Nd6 Qf3 Rfc2 Qfe4 Rc8 Rc6 a6 Rc4 Rb2 Ra4 Nf3 Bg5 Ka1 Bgf6 Nd2 Ke2 Rb8 Kf2 Nf3+ Kf1 Ng1 Ne2
2R2r1N/2R2KBP/1r1pn1Pq/3NbR2/r5rn/nq3qP1/PbbP2k1/3Q4 w - - 0 1 illegal: No proof kernel
1r5b/KPPr1nrb/1qr1p2B/3N2Q1/Nr1nP3/2r4P/1P1b4/N1n1kBR1 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Ra4 f5 Ra3 f4 Rg3 fxg3 Bh3 Kf7 Bf1 Ke8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 Kc5 Ke4 c4 a5 f4 g5 h3 d5 e3 a4 f5 a3 b6 a2 b7 a1R f6 d3 f7 d2 Qe1 d1R Qc3 d4 Ne2 Kf3 e4+ Kf2 Kb5 g2 c5 g1N c6 d3 c7 g3 Kb6 d2 Qb3 g4 Qd3 g2 Nd4 g3 Nf3 Rh6+ Qd6 R1a4 Qg6 Qd3 Nc3 Bg7 f8N Ne2 Nd7 g1R Qf6 g2 Qe6 Rb4+ Nb5 Nc6 Rh2 Ncd4 Nc5 Rb8 Ng5 Bh8 Nf7 Ke1 Qg6 Bf5 Qf6 Bh7 Qc6 Rd6 Ng5 e6 Ka6 Nh6 Na4 Nf7 Rh1 Qc4 Qb6 Rc6 Ka7 Qc5 Na3 Qb5 Rh2 Rh1 Qc5 g1B Qd5 Be3 Rg2 Rg1 Rg4 Rg3 Qf5 Rf3 Rg1 Bf4 Qe5 Rfc3 Nc2+ Kf2 Nf3 Qd5 Rg7 Nb3 Nh2 Qb5 Bg2 Rg1 Na1 d1R Bf1 Ke1 Ng4 Rd7 Ne3 Ned4 Nd5 Rg2 Be3 Nc1 Qf5 Bg3 Bh6 Bf4 Rg6 Bd2 Qh5 Re2 Rg1 Rg2 Qe5 Rg7 Qg5 Qb6+
2Qqr2q/2r1bP1P/1q1n1q1R/3R4/Bn1qPNpq/1K6/3RP1Pk/4Nb1r w - - 0 1 illegal: No proof kernel forced: bxLB
1r3b2/1qbN1r2/Nqb1r3/1Bp4P/2BBnPk1/2P1P2R/PQr5/K1nn2n1 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 Nd2 f6 Rb1 fxg5 Rb3 g4 Rg3 hxg3 f4 Ke7 h4 Ke6 h5 Kf5 e6 d5 c3 g5 e7 b5 e8B b3 Rh4 b2 Bg2 b1R Ngf3 b4 Ne5 d4 Nef3 d3 Ne4 b3 Kd2 b2 Ba4 Rh6 Qf1 Nc6 Nf6 Nb4 Qe1 Bd7 Bc6 Ra7 Bb5 Bc6 Bh1 g2 Rh2 g1N Rf2 g3 Kd1 g2 Ne5 d2 Nc4 g4 Ne8 g3 Ne5 Nd3 Kc2 d1N Nd7 Nf6 Bc4 Kg4 Nb8 Ne4 Kb3 Re6 Be3 Nc1+ Kc2 Qc8 Nd7 Qb7 Bd4 Ra1 Rf3 b1R Qf2 Rb5 Nb8 Rab1 Na6 Rd5 Bc5 Rb6 Bb5 Rd2+ Kb1 Rc2 Re3 Qc8 Bd4 Rb8 Ka1 Qb7 Nc5 Nh3 Rf3 g1B Nd7 g2 Bc4 Nhg5 Rh3 Nf3 Qf1 Be3 Qf2 g1Q Qh2 Qf2 Bg2 Ng1 Bf1 Qf3 Qf2 Qb6 Qh2 Bf2 e3 Bh4 Qf2 Bd8 Bfd3 Ba4 Qh2 c5 Nc7 Bc6 Na6 Bc7 Qd2 Ng3 Bb5 Qd5 Bdc4 Ne4 Bf1 Qb3 Bfc4 Qb4 Qh2 Qb7 Qf2 Qa5 Qd2 Qab6 Rh1 Bd8 Be5 Rb2 Rh3 Qc8 Bd4 Rc7 Qc2 Qcb7 Qb1 Rc2 Qb2 Bh6 Nf8 Rf7 Nd7 Bc7 Qb3 Bg7 Qb2 Bf8
B1N1n1Q1/PK1n3R/7P/r1P1P1r1/Nbpbq2N/1qP1p1R1/2kr4/q3n2b w - - 0 1 illegal: No possible last move, all moves rejected
RK1q4/2PN4/1N2rq1P/5p2/Pn1Q1rn1/3B1PNk/n2P2rp/bbb3qR w - - 0 1 illegal: No proof kernel
Brn3q1/2p2Rnk/1p2N3/1PBP4/b1rbPP1n/R7/1B2bP2/2QbK1rb w - - 0 1 illegal: No proof kernel
3n2b1/2PkB2p/q1rbn2P/1RP3n1/p2qB3/Q3Pr1P/BN1NKn2/1n3r2 w - - 0 1 illegal: Other
b1b5/3r4/PBprq1p1/nq2Q1N1/4PK1n/b5PR/P1RPq3/N2kNbb1 w - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 f5 a5 bxa5 h4 f6 h3 g3 exf6 Nc3 f5 Bg2 hxg2 Nb1 f4 Kf2 Ke7 Kf3 Kd6 h4 Kc5 h5 Kd4 e3+ Kd3 a6 b5 h6 f5 h7 b4 Qa4 c3 Rh2 c2 Nh3 g1B Rf2 b3 Nc3 g6 Qa3 b2 Qa4 b1Q Rg2 Qd7 Nd1 Nh6 Rh2 Ra7 Ng5 Nc6 Ne6 Na5 Nd4 Qe6 Nb5 Ba3 Rg2 Rd8 h8N Rd6 Nd4 Qb5 Bb2 c1Q Nb3 Kc2 Nf2 Qcf1 Bd4 Qfc4 Rh2 Qe2+ Kg2 Rb7 Bb6 f3+ Kh3 Ra7 Nd3 f2 Qd4 f1B+ Kh4 f4 e4 f3 Rh3 f2 Nf7 Nf5+ Kg5 Nh4+ Kf4 c6 Qg7 Rad7 Qe5 Bb7 Ng5 Ba8 Rb1 Bg2 Rb2+ Kd1 Rc2 f1B Na1 Bf3 Ne1 Bg4 Nh7 Bf5 Ng5 Rb7 Rh2 Qed5 Qe7 Bc8 Qe5 Qe6 Rh3 Rbd7
1n1RN1Q1/q2P2q1/p3P2b/P1BB1bN1/K1n4P/b1qn4/1p4qP/B3rk1r w - - 0 1 illegal: No proof kernel
2q1R3/B2NPKq1/1Q1r1p2/B2kPn2/1p1q1PrP/3B1r2/1bb1Pn2/2bb1N2 w - - 0 1 illegal: Other
Qbb1qN2/PpP2n2/k3pR1N/P1R2K2/1r2r3/nq6/4P1bP/1brn2BR w - - 0 1 illegal: No possible last move, all moves rejected
8/r1pkb1K1/p2n1rb1/1qQ1pP2/B3P1P1/B1P2q2/NNP1N3/rn2Rn1q w - - 0 2 legal: proof: e4 b5 b4 g5 h4 gxh4 a4 bxa4 Nf3 f5 Rh3 f4 Ng1 d6 Raa3 Qd7 Rae3 Qc6 Rh1 Qc3 dxc3 fxe3 Ke2 e5 Kd3 h5 g4 e2 f4 e1Q b5 a6 b6 h3 b7 h2 Be3 d5 Qe2 h4 Bc1 h3 Nf3 a3 Nd4 a2 Ke3 a1R Bb2 Nh6 Kf3 Nf5 Bc1 Nd6 Nd2 Nd7 b8N Rh6 Qf2 Ra7 Qh4 Rf6 N4b3 d4 Qf2 d3 Qc5 Nb6 Nc6 Nbc4 Nbd4 Kd7 Nb4 Qe2+ Kg3 Be7 Kh4 Na3 Kg5 Nb1 Nc4 d2 Ba3 d1Q Nb2 Qb5 Na2 Qf3 Rg1 h1N f5 h2 Ne2 Ng3 Rh1 Bb7 Rg1 Bc6 Rh1 Rf7+ Kh6 Rf6+ Kg7 Bd5 Bg2 Be6 Re1 h1Q Bf1 Bf7 Nd4 Qc6 Bb5 Nf1 Ne2 Bg6 Ba4 Qb5
rNr1Q1r1/2R1P3/p1pq4/N2P1BNq/K3pb2/4P3/n1PPk3/bnR1q1b1 w - - 0 2 illegal: Other
q3bnN1/q1n1pP1R/1Q2PbP1/6r1/qn3p1b/PN2p1k1/2B1P3/1NrR1K2 w - - 1 2 illegal: No proof kernel
1B1nb1B1/1kp4q/Nb1Pp3/2Pr3Q/1b1NP1K1/2PpBn1n/3P2r1/1q1r3R w - - 1 3 illegal: Other
b2rB3/p1Qpr3/1n1P1PN1/N1P2r2/2R4q/b1RRn1PK/2p1P1n1/n1n3k1 w - - 0 1 illegal: No proof kernel
3K1bR1/1N1bpBpb/NQ3Pq1/R6P/n1n1nN1P/k3p1PP/3n1n2/r5r1 w - - 0 1 illegal: Other
3K2k1/2PBp2b/1B1Rqr2/2Bp4/1n6/p1bn1bP1/P2PPRr1/1NQrnr2 w - - 2 3 legal: proof: c4 c5 b4 g5 f4 gxf4 bxc5 b5 Bb2 bxc4 Ba3 Qa5 Bc1 Qd8 Nc3 h5 Ne4 h4 Ng3 Rh5 Nf5 Rh8 g3 h3 Nh4 Na6 Ng2 hxg2 Qa4 Nb8 Qc2 Nf6 Qd1 Ng8 Kf2 f5 Kf3 Kf7 h4 d5 c6 a5 h5 a4 c7 a3 h6 c3 h7 c2 Qe1 Nf6 Bb2 c1R Rh6 Ng4 Bf6 Nc6 Bc3 Nb4 Bd4 Rd1 Be3 Nf2 Rh4 Qd7 Rc1 Nfd3 Rc3 Qe6 Rc6 Ra6 Bb6 Bg7 Nh3 Bc3 Nf2 Bd7 Rh2 g1N+ Kg2 Nf3 Kh3 Rf8 h8B Kg8 Ne4 Be8 Rg2 Bg6 Rd6 Bh7 Rf2 Rf6 Bg2 Ra8 Qg1 Nfe1 Kh4 f3 Kg5 f4 Bh3 Ra6 Qf1 Rh6 Bhd4 Rh4 Bf5 Rh2 Bdc5 Rg2 Qh1 Qf7 Bd7 Qe6 Rf1 f2 Qg1 Bd4 Nc3 f3 Nb1 Bc3 Qh1 Nc6 Qh4 Ncb4 Qc4 Bb2 Qc1 Bc3 Rh1 f1B Rh2 f2 Kh5 Rg1 Kg5 Bh3 Rg2 f1R Rf2 Bg2 Kh5 Bg6+ Kh6 Bf3 Kg5 Rg2 Kh6 Bf7+ Kg5 Qh6+ Kf5 Bg6+ Ke6 Kh7 Be8 Kg8 Kd7 Bh7 Kd8 Qe6 Bd7 Ra5 Bd4 Rc5 Be3 Rc4 Bec5 Rf4 Qc2 Rf5 Qc1 Rf6
5Qr1/r2r1bP1/pB2rp1p/1q2PNPb/7K/nBB2PN1/P1R2n2/1k1b1n2 w - - 0 2 legal: proof: c4 e5 d4 exd4 b3 b5 f3 bxc4 Nd2 g5 Bb2 g4 Ba3 g3 e4 Qg5 b4 Qa5 Rc1 Qg5 Rc3 Qd8 Re3 Bg7 Re2 Bf8 Rf2 gxf2+ Ke2 Qg5 Nh3 Qh4 Ng1 Qd8 g4 Qf6 h4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qf8 Rh3 Qe7 Rh1 Qd8 e5 Ke7 b5+ Ke6 b6 Kd5 g7 c5 b7 a6 Bg2 f1N Kf2 f6 Bc1 c3 Rh2 d3 Bh3 Kd4 Qc2 d5 Ne4 c4 Nd2 Nh6 Kg2 Ng4 Qb3 c2 Nb1 h6 Bb2+ c3 Nd2 c1R Qa3 Rg8 Qf8 Nf2 Rh1 Qa5 Be6 Nc6 b8B Ra7 Bd7 Nb4 Qe8 Nc2 Bg4 Rd1 Qg6 Na3 Nc4 d2 Rh5 Qb5 Qe8 Kd3 Na5 Kc2 Nb3 d4 Bc7 d3 Be6 Kb1 Ne2 c2 Nbd4 c1R Bb6 Rc6 Bb3 Bg4 Qf8 Re6 Rh2 Bh5 Ba1 Re1 Ng3 d1B Ndf5 d2 Bc3 Re3 Rh4 Rd3 Rc4 Rdd7 Rc7 Bc2 Rc5 d1B Rc8 Ne4 Kh3 Nf2+ Kh4 Bd3 Bca5 Be4 Rc2 Bd5 Be1 Re8 Bea5 Bdf7 Bc3 Re6
7b/1Ppp1b2/1B4bP/bRPb4/4q2P/1qnN1rR1/PKN1Nnp1/Q1r2k2 w - - 0 1 illegal: No proof kernel
1r4nb/1P2n1q1/R2P1nQp/3B3K/1B2P1R1/pr1B2Pk/Npb2nnP/1q6 w - - 0 1 illegal: No proof kernel
2r2Nnq/P1q2bP1/pB6/Nnpk1B2/rb2b2K/pP3Qn1/P6P/1RBb4 w - - 0 1 illegal: Other
n6r/B1P2Ppp/Q3q3/r2N1n1p/3nnR2/b1b1NPPP/4b3/kB2q1KB w - - 0 2 illegal: No proof kernel
1r2K3/1r1q4/5p2/1P2bn1B/2rBqP2/kNBPNbPp/npP3q1/Q2q2R1 w - - 0 1 illegal: No possible last move
2Kn4/pn2P1bk/3Qp3/1n5q/P1PPrr2/BbR2Rq1/b3P2p/2b1RNB1 w - - 1 2 illegal: No proof kernel
q1Q1Nq2/1PB2p2/3p1qbR/3r1P1P/B1N4k/2qPpr2/4n1P1/q1b1KNr1 w - - 0 1 illegal: No proof kernel
4r2n/2k3KN/1NPpnPB1/5qp1/P2PB1Pr/Bq4bQ/2p2n1p/4b1Rb w - - 0 2 illegal: No proof kernel
1Nq3R1/3N2Pp/3r2Pk/4P2P/rp1r3K/1P1n3B/qbpbq1pQ/1NR1n3 w - - 1 2 illegal: No proof kernel
N3nq1N/2n5/2p2p1b/3rn2P/1PPPRP1R/1B1Kp3/NQ1b2qp/3r1r1k w - - 1 2 illegal: No proof kernel
3n3R/pbRB3q/r1P4P/q2bk1NQ/2b2p1B/Pp3P1B/Pr2nbKp/8 w - - 1 2 illegal: No proof kernel
3b4/1bnk2Pr/1B2NppP/qnpn2P1/5b2/2PN2p1/K1RP2q1/1N1qQB2 w - - 0 1 legal: proof: b4 h5 g4 a5 f4 axb4 a4 b5 g5 c6 Ra3 e6 Rg3 Ra7 Rg4 hxg4 e3 Ra8 e4 d5 f5 dxe4 f6 g6 Qe2 Rh7 Qd1 Rg7 fxg7 Ra7 Qf3 Rd7 Qe2 Rd3 Qd1 Rh3 Bg2 Rh4 Bf1 Rh8 h4 e3 h5 e2 h6 c5 a5 e5 c3 e4 a6 f6 a7 b3 a8N b2 Nb6 b4 Qc2 b3 Na4 Na6 Nb6 Bb7 Rh4 Be7 Qd3 Nc7 Rh1 Rh7 Nd5 Kd7 Na3 b1Q Nh3 b2 Qe3 Qa1 Qg1 b1N Nb4 Qa8 Nf4 Bd8 Ne6 Ne7 Nd3 Qa5 Nb5 Q1a4 Ba3 Ned5 Bb4 Na3 Qf2 Qa8 Ba5 Qb4 Bb6 Qba5 Nd6 Nab5 Nc4 Q8a6 Qe3 Qa7 Na3 Qa8 Kf2 e1B+ Ke2 g3 Kd1 Bf2 Qe1 e3 Kc1 e2 Kb2 Be3 Nb1 Bf4 Qc1 Na3 Ka2 e1Q Qd1 Qe2 Qe1 Qd1 Rh4 Bd6 Rb4 Be5 Rb2 Bf4 Rc2 Nab5+ Kb3 Qa4+ Kb2 Qe4 Kb3 Qg2 Kb2 Qa5 Kb3 Na3 Ka2 Nab5+
2K2nRB/P2npr2/R2P1bpr/N1R3PB/1bP1Ppp1/rqb2kp1/8/1Q6 w - - 0 2 illegal: Other
Q2b4/pN1qpp2/2R4R/P1P2P1n/1K5B/N2p3k/2pPbPnb/r2rR1n1 w - - 0 3 legal: proof: g4 h5 b4 hxg4 e4 c5 c3 cxb4 Bc4 b3 Bd3 Qa5 Bc2 Qf5 exf5 bxc2 a4 b5 h4 g5 h5 d5 h6 Kd7 a5 d4 c4 g3 h7 g4 Nc3 b4 Bb2 b3 Nb5 g2 Ra4 g3 Nc7 Bh6 Ra3 Kd6 c5+ Ke5 Ra2 Kf4 Rh2 Nf6 Ba1 b2 Rh3 b1Q Rh5 Qb5 Qe2 Na6 Bc3 Rb8 Rh1 Nh5 Ra1 Nb4 Ne8 Nd5 Nf3 Kg4 Nd6 g1B Nb7 g2 Qe4+ Bf4 Rc1 Qc6 Ke2 Ne3 Kd3 Qd7 Re1 Bh2 Ne5+ Kh3 Nc4 g1N Na3 Ng2 Kc4 Bc7 Kb4 Bd8 Qd5 Rg8 h8R Rg4 Rh6 Re4 Rf1 Re1 Rc6 Ra1 Re1 d3 Bf6 Rd1 Rb6 Ra1 Bh4 Rd1 Nd6 Bb7 Qe4 Bd5 Nb7 Ra1 Rc6 Rd1 Qf4 Bf3 Qe4 Be2 Qd5 Bb6 Qd6 Rg8 Qb8 Bd8 Qa8 Rg4+ Kb3 Rb4+ Kc3 Rb2 Kc4 Ra2 Kb4 Raa1 Rf1 Ng7 Re1 Kg4 Bf6 Bg3 Rh5 Bh2 Rh6 Nh5 Bh4 Kh3
2B3B1/nPpR1QRr/2P3bq/r1n1p2q/1PNpp2b/1K1P4/Pn5p/3kB3 w - - 1 2 illegal: Other
1b1rR3/2p2pkN/4pr1p/P3Pp2/3q1PbQ/1PPBrb2/B5q1/K2RB1n1 w - - 0 3 illegal: No proof kernel
1n6/k4q2/1p2r3/1q1p2N1/Bq1P1NK1/1PpPnP2/pBQ1pq1P/B1R3bb w - - 0 1 illegal: No proof kernel
k3bNb1/1q1Qp3/r1rpP1pp/1K4R1/1p4n1/1P3P1p/1R1R1bPP/2B1q1N1 w - - 2 6 legal: proof: d4 b5 a3 c5 Qd3 cxd4 Qd1 Na6 a4 b4 Nh3 Nc7 Ng1 Nb5 axb5 Qa5 Kd2 Qc7 Ke1 Qd8 e3 f5 Bd3 Bb7 Qg4 Bc8 Be2 Qa5 Qh3 Qd8 Bg4 fxg4 Ke2 gxh3 Kd1 Ba6 Ke1 Bc8 Kd2 a5 Kd3 h6 Kc4 d3 b6 d2 c3 d1B b7 g6 b8R d6 f3 Kd7 e4 Kc7 e5 a4 Ra2 a3 Kb5 Ra6 c4 Nf6 c5 Be6 c6 Bg8 e6 Qc8 Nc3 Bg7 Ne4 Ng4 Nc5 Bd4 Nd7 Bf2 Nf8 Bc2 Rb6 Qb7 b3 Kb8 c7+ Ka8 Rb2 Be4 Rd2 a2 Rb2 a1Q c8Q+ Ka7 Qd7 Bc6+ Kc4 Kb8 Rb5 Ka8 Rg5 Ba4 Ne2 Qb1 Rd1 Bc6 Ng1 Qe4+ Rd4 Qe1 Qc7 Be8 Qd7 Rh7 Rd3 Rf7 Rdd5 Rf5 Rd4 Rb5 Rdd2 Rbb6 Rh5 Qa7 Rg5 Rc6+ Kb5 Qb7+
4B2q/1ppq2b1/N6P/BRQp1p1p/r1P1Nnpk/6p1/PPb2P1N/1r5K w - - 1 3 illegal: No proof kernel
1Rr2qr1/1n1p1N2/1ppP3q/2bq1r2/2b4P/PnP1rN1Q/1P2B1r1/1kB1K1B1 w - - 0 1 illegal: No proof kernel
N4R2/R1q1nb1p/P3p1nB/b2rPp1P/1Q1q1P1K/2Pn4/r1k5/1qnNR2b w - - 0 1 legal: proof: f4 a5 b4 axb4 d4 c5 e3 cxd4 Bb5 g5 Bc6 g4 Bf3 gxf3 Kf2 f5 Kg3 Kf7 a4 Ke6 h4 Kd5 h5 Kc4 a5 d5 c3 b5 e4 d3 e5 d2 Kh3 Kd3 g4 b3 g5 b2 g6 d4 g7 f2 Ra4 f1N Ne2 b4 Na3 b1B Ng1 b3 Rc4 b2 Nc2 Nc6 Qe1 d1Q Qh4 Be6 Ne2 Nh6 g8R Qc7 Bd2 Ng3 Rg7 Bf7 Rg4 e6 Re1 Ne7 Ng1 Ne2 Nf3 Nc1 Be3 Ba2 Rc6 b1Q Rg7 Bd5 Nd2 Bh1 Nc4 Rd8 Bf2 Rd5 N2e3 Qd2 Nd1 Kc2 Bg3 d3 Nb6 Qf2 Rc5 d2 Na8 Qd4 Qf6 Rg8 Bh4 Rh8 Bg5 Rg8 Nf2 d1N a6 Nb2 Nd1 Nbd3 Rc4 Nc8 Qd8 Bb4 Qd6 Ne7 Kh4 Ba5 Qb4 Rgd8 Rg8 Rb8 Rf8 Rb7 Qc5 Rb2 Qb4 Ra2 Rc5 Bg6 Rc4 Nf7 Bh6 Nh8 Rc6 Bf7 Rb6 Nc5 Rb7 N5d3 Ra7 Nhg6+
2b2N2/r2Br1Pp/prb1n3/P2pK1N1/Nk2q2P/1qrR2R1/n2PQ1P1/2b3b1 w - - 0 1 illegal: Other
2B2r2/1P3nN1/1qpppb2/N1n2r1p/1kn1PRP1/2bPR1KP/3Q1r1q/2N4b w - - 0 1 illegal: No possible last move
1K3NrN/b1Rp3q/4prPP/rpb2p2/1rR3b1/1k1BnP2/1P1P1bN1/Q1n5 w - - 0 1 illegal: No proof kernel forced: bxDB
1Nr3q1/K4p2/p1Pb2Bn/1p3qRr/Pk2bP2/prN1Pn2/1PqB1p1N/4Q3 w - - 0 1 illegal: No proof kernel
4R3/3r3p/3p4/1KpPR1rP/1nn1q1Pk/1b1Nb1pb/p1P2BP1/n1Q2BBb w - - 3 4 illegal: Other
3b4/2p1pBpP/K1Pnn3/Rbq1P3/2Brp1PQ/p3N2n/2P5/r1BRnbk1 w - - 0 1 illegal: Other
r4r2/P2p1B2/Q1bbp1pn/np1P1k1B/rB2pq2/1P3P2/2R1P1RN/1Kb4b w - - 0 1 illegal: No proof kernel
6q1/1qRn1Q2/p2p2P1/1q1bRpn1/P2q1rp1/2R1b1PP/Kp1B1P2/1N2Nrk1 w - - 0 1 illegal: Other
bbQ1n3/Pb2n3/Pr2r1P1/4R2B/4b1QP/2K2qqr/q3P1k1/N2nR1B1 w - - 0 1 legal: proof: g4 g5 b4 h5 f4 gxf4 c4 d5 cxd5 a5 bxa5 e6 Nc3 e5 g5 Na6 Ne4 Nb8 Nf2 f3 Ng4 hxg4 Qa4+ Qd7 Qc4 Qd8 Qf4 exf4 d4 Kd7 Kd2 Kd6 a4 b5 g6 c5 h3 f5 a6 g3 a5 c4 a7 g2 a6 b4 Ra2 c3+ Kc2 b3+ Kd3 f2 Bd2 b2 Rh2 b1B+ Rc2 f3 Be1 f4 Kc4 Qa5 Kd3 Qa2 Rh1 Nc6 Bd2 Bb7 Be1 Rb8 Bd2 Nce7 Rh2 Nf6 Be1 Ne8 Rh1 Ba8 Bd2 Rb6 Bc1 Rh5 Bb2 Re5 h4 Re6 Bc1 Bg7 Be3 Be5 Nh3 g1R Bg2 f1Q Ng5 f2 Bf3 Rg3 Bh5 Rh3 Nf3 Qg1 Nd2 f1N Nb3 f3 Bf2 Qg3 Na1 Ne3 Re1 Bb7 Bg1 f2 Bg4 f1B Bh5 Kd7 d6 Bfg2 d5 Bf4 Kd4 Qf3 Rb2 c2 Rb4 c1Q Rb5 Qc7 Ra5 Qb8 Kc3 Be4 Rb5 Kd8 d7 Kc7 Ra5 Kd6 d8Q+ Ke5 Qd7 Bh2 d6+ Kf4 Re5 Kg3 Qa4 Bh1 d7 Kg2 d8Q Bg3 Rc5 Qbf4 Qdd7 Qg5 Qac6 Bb8 Re5 Qgg3 Qcc8 Ba8 Qcc7 Beb7 Qdd6 Qfd5 Bf2 Kh2 Qc8 Bf3 Qb4 Kg2 Bg1 Qe4 Qd8 Qf5 Qg4 Bfe4 Qc7 Qf3 Qc8 Nd1+
6b1/1N2QbbQ/nr1P2P1/3BP3/1R1bP1Rb/1n1Pr2B/q1b1n3/k4K1n w - - 0 1 legal: proof: f4 e5 c4 a5 b4 axb4 g4 d5 cxd5 h6 Bb2 h5 Nc3 Na6 Ne4 Nb8 Nf6+ Ke7 Bd4 g6 Be3 g5 Ne4 Kd7 Nf2 Ke8 fxe5 Ra6 Bf4 gxf4 g5 Ra8 Ng4 hxg4 a4 Ke7 h4 c5 d6+ Ke6 h5 Kd5 e4+ Kd4 h6 f5 a5 b5 d3 Kc3 h7 Kb2 a6 g3 g6 f3 a7 c4 Ra3 b3 Rh2+ g2 Rh6 b4 Ra5 f2+ Ke2 f4 Rc5 f3+ Kd2 c3+ Ke3 c2 Qe1 c1B+ Qd2+ Ka1 Rh5 b2 Rc3 b1B Be2 f1N+ Kf2 b3 Rh4 b2 Rh6 Ne7 Rb3 Be6 Rb4 Bg7 Rh2 Ng3 Nh3 g1B+ Ke1 f2+ Kd1 f1N Ke1 Bg8 Nf4 Bc2 Rc4 b1B Ra4+ Bba2 Ne6 Nec6 Bh5 Bd4 Qg2 Na6 Nc5 Na5 Rb4 Bg5 Nb7 Rb8 a8B Baf7 Rh4 Nh1 Bg4 Nb3 Bh3 Qa5 Rg4 Nfg3 Qd2 Bd8 Qg5 Ne2 Kf1 Qa4 Qe7 Qa2 Na5 Rb6 Bd5 Nc3 Nb7 Ne2 Qc7 Bh4 Qe7 Be6 Qf6 Bgf7 Qe7 Rf8 h8Q Bg8+ Kg2 Rf3 Qh7 Re3 Kf1 Bef7
B4K1b/2bpQPPr/r2R2b1/4nbNQ/5P1r/3n1Rq1/1k2bP1P/q2B4 w - - 0 1 illegal: Other
2r1q1kn/4p1b1/1nr5/1Q2bPPq/1qP3rR/1P1P2N1/n1n3QB/2K1N2B w - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 d4 gxh4 Kd2 cxd4 c3 d3 Ke3 d2 Kd3 Na6 Kc2 Nb8 Na3 d5 Kb1 d4 Qb3 d1N Kc2 d3+ Kb1 d2 Kc2 Nh6 Nb1 Ng8 Ra6 Bd7 Re6 fxe6 Kd3 e5 Ke4 Bf5+ Kf3 Bd3 exd3 e4+ Ke2 Bh6 Nf3 Bg7 Ng1 Bf8 f4 a5 g4 h5 f5 a4 b6 a3 g5 a2 c4 Kf7 b7 a1B Qb5 h3 b3 h4 Qe5 e3 Qc3 h2 Qc2 h3 Nc3 Rh6 Nb1 Nd7 b8Q Nc3+ Kf3 d1N Kf4 e2 Qd6 e1Q Bb2 Qe8 Qa6 Rc6 Na3 Nb6 Bg2 Rac8 Nf3 Ne3 Nb1 Bg7 Qe2 Nc2 Nbd2 Nh6 Nf1 Kg8 Ng3 Nf7 Qb5 Nh8 Bc1 Bb2 Be3 Qd2 Ne1 Ba1 Bf3 Bb2 Qg2 Ba1 Rf1 h1R Be4 Rh2 Rh1 Be5+ Kf3 Bg7 Bg1 Be5 Qf1 Rg2 Bh2 Rg1 Nh5 Rg4 Ng3 Nd1 Qg2 Qb4 Ke2 Nc3+ Kd2 Bg7 Bg1 h2 Kc1 Nb1 Bc5 Bae5 Bd6 Nc3 Rf1 h1Q Rf4 Qhh5 Bf3 Rh4 Re4 Rh1 Rh4 Rg1 Qf2 Na8 Nh1 Bd4 Bh2 Rg4 Ng3 Bde5 Bh1 Nb6 Qg2 Na2+
2B2q2/pP1rqPk1/2B1Q1Pb/n5nP/3Pqq1r/n4RN1/8/1bKQ1rR1 w - - 0 1 illegal: No proof kernel
KBQ1B3/4N1P1/7n/r1p2bPP/2q1nqP1/1R1Q1bnP/1r3knr/1R5r w - - 0 1 illegal: Other
6n1/nN1q1Q1P/k1P4P/B1q5/3N1KpR/1q2bR2/nq3P1P/1Q2nrrn w - - 0 1 illegal: Other
2b1Q2K/QB1rR3/n1q2P2/b2Bpb2/2n1q2P/3PPnq1/1N4pP/2N3rk w - - 0 1 legal: proof: a4 f5 g3 b5 axb5 c5 e3 h5 Qe2 h4 gxh4 f4 Bg2 f3 Kf1 Rh7 Bh3 fxe2+ Kg2 Kf7 Kf3 Rh8 Bf1 Ke8 Kg3 Kf7 Kg2 Ke8 Kf3 d6 c4 Bh3 b4 Rh7 b6 Na6 b5 Rh5 Ke4 Be6 Kd3 Rh6 Kc2 Rh5 Ra4 Nb8 Rb4 Rh8 Bb2 Bf5+ Kc1 Bd7 Bd4 cxb4 c5 Bf5 c6 Bc8 Bc5 dxc5 Kb2 Kf7 f4 Kg6 b7 Kf5 c7 Kg4 f5 e1N b6 g5 f6 e5 Bb5 a5 Ba6 b3 Kc3 c4 Nf3 Kh3 Na3 Kg2 Bb5 b2 Rf1 b1B Rh1 g4 Bd7 a4 Nc2 a3 Ba4 a2 Bc6 g3 Nb4 Rh7 Nd4+ Qd5 Ne2 Rd7 Nc1 Nf3 Nbd3 a1Q+ Nb2 Na6 b8Q Ne7 b7 Bf5 d3 Qe4 Bd5 Nc6 Qa7 Na5 b8Q Bc5 Re1 Bb6 Re2+ Kh1 Rc2 Qa4 Rg2 Qc6 Rc2 Bb7 Qe8 g2 c8B Nb8 Kb4 c3+ Nc4 Ba6 Bb7 Bc7 Rb2 c2 Kc3 Bd8 Rb5 Bb6 Rc5 Bd8 Nb2 Nc4 Rb5 Ba5+ Kb3 Qc7 Rb6 Qc5 Re6 Qf8 Re7 Qg7 Bbc6 Bc8 Bb7 Bb6 Kb4 Ba5+ Kc5 Qg3 Re6 Rh7 Re7 Na6+ Kc6 Ncd2 Kd6 Rg7 Rf7 Nc4+ Ke7 Rb8 Kf8 Rh7 Nb3 c1Q Re7 Qc3 Nc1 Ra8 Re6 Rd7 Re7 Qc2 Kf7 Qa4 Kf8 Qc6 Kf7 Bg4 Kg7 Bf5+ Kh8 Rb8 Ba8 Rb4 Bb7 Ra4 Bg8 Ra1 Bd5 Rb1 Na2 Rd1 Nc1 Rg1
1nnrN3/1P5k/1pnbPnNP/P2n1b2/Rp2r2P/B5qQ/1b2BQ2/7K w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 a5 gxh5 axb4 c5 Ke7 c6 Ke8 a4 d5 Ra3 b6 Rc3 Qg5 Rc4 dxc4 Bb2 Qb5 Ba3 Qa6 Bc1 Qb7 cxb7 Be7 Ba3 Bd6 Bc1 Bf8 Kf2 c5 Kg2 g5 d4 f5 h4 Kf7 e4 Kg7 h6+ Kh7 e5 f3+ Kh2 c3 a5 g4 d5 c2 d6 f2 d7 g3+ Kg2 f4 d8Q c4 Q8d6 c3 Q1d3+ Bf5 Q3d4 Nf6 Ba3 c1B Qe3 c2 Qb3 Bb2 Qbe6 c1N Qc4 Nd3 Rh3 f3+ Kh1 g2+ Kh2 Be7 Qd8 Re8 Qb3 Bd6 Ne2 Re6 Nf4 Re7 Be2 f1N+ Kg1 Ne3 Ng6 f2+ Kh2 Nc4 Qf8 f1N+ Kg1 Nfe3 Nc3 Re8 Nb5 Ned5 Nc7 Re6 Ne8 Re7 Kh2 Re6 Kg3 g1Q+ Kf3 Qe1 Kg2 Qg3+ Kh1 Re7 Ng7 Re8 Qf7 Rd8 e6 Nde5 Qf8 Nec6 Ne8 Rd7 Rh2 Rf7 Qf3 Rg7 Qg2 Rg8 Qh3 Rg7 Nf4 Rg4 Ng6 Re4 Rg2 Bc5 Rg1 Nd6 Ra1 Nc8 Ra2 Nh5 Qf6 Bd6 Qd4 Nhf6 Qf2 Bc3 Bc1 Bd4 Ra4 Ba1 Ba3 Bc3 Bf1 Bb2 Be2 Na6 Nf4 N8e7 Ng2 Rd8 Nf4 Nc8 Ng6 Nab8
k5qR/1q2b3/4QPP1/N1p1B2B/4P1P1/PrNr3r/3rQ1p1/3nKnnb w - - 0 1 legal: proof: g4 a5 c4 d5 b4 axb4 a3 f5 cxd5 e5 d4 exd4 Ra2 g5 Rb2 f4 Rb3 Nd7 h4 Nb8 Rg3 fxg3 hxg5 Kf7 Qa4 Ke7 Qd1 Ke8 f4 Kd7 f5 b5 f6 c5 d6 Kc6 d7 Kb7 e3 h5 Ke2 d3+ Ke1 d2+ Ke2 h4 Rh2 h3 Qe1 d1N Rf2 b3 Rf5 b2 Qa5 h2 Qa4 h1Q Ke1 b4 Bd3 b3 Re5 Nh6 Rf5 Nc6 Qf4 Be7 Kd2 Qg8 d8Q Ne5 Qc4 Nf3+ Ke2 Rh7 Re5 Nf5 Nd2 b1R Qd6 b2 Nb3 Rh3 Qde6 Ra4 Na5+ Ka8 Bd2 Bb7 Bc3 Rc1 Re4 b1R Be5 Rb3 Rd4 Rcc3 Rd8+ Ka7 Bb1 Rd3 Kf1 Rd2 Qe2 Rad4 Ba2 R4d3 Rb8 Qh7 Rh8 Qg8 Bb1 Ka8 Bc2 Nh2+ Ke1 Nf1 Bb1 Nh4 Bc2 Rd4 Bg6 R4d3 Bh5 Qc6 g6 Qb5 Qd7 Bh1 e4 g2 Qe6 Qbb8 Nf3 Qb7 Nd4 Nc3 Nb5 Nf3+ Kf2 Ng1 Ke1 Nd1 Nc3 Qe8 Nc6 Qec8 Na5 Qg8
1n3B1N/PK6/1Pp4r/4knQb/b1P4n/n5P1/p1RQqP2/N1bqRr2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 f5 exf5 e5 dxe5 Bg7 Ne2 Bh6 Ng1 Bf8 a4 Be7 b5 Bf6 b6 Ra7 Qg4 Bg5 Ba6 Ra8 Qb4 axb4 a5 Be7 Bf1 Kf8 a6 Ke8 a7 Bf8 Ba6 bxa6 Kd2 Kf7 Ke3 h5 Kd4 d5 c4 b3 f6 Ke6 f7 h3 Bb2 c6 Bc3 h4 Nf3 b2 Bb4 h2 Ng1 a5 Ne2 a4 Bd2 a3 Ng1 h3 Bf4 a2 Bh6 Qe7 Bg5 Bh6 Na3 b1N Nc2 Na3 f8Q Rh7 Bf6 Bc1 Nf3 Nh6 Re1 h1N Qd8 h2 Nh4 Ng3 Ng6 h1Q Bg7 Ngf5+ Kc3 Rh8 g3 Nh4 Bf8 d4+ Kb3 d3 Ka4 d2 Ka5 d1B Qd2 Rh7 Nh8 N6f5 Rb1 Rh5 Na1 Rh6 Rb2 Ba4 Rc2 Bd7 Qg5 Be8 Qd2 Bh5 Qg5 Nd7 Ka6 Rd8 Kb7 Qf3 Qd2 Qd6 Qg5 Qdd1 Qd2 Nb8 Qg5 Ne7 Qd2 Kf5 e6 Qfe2 Qg5+ Ke4 Qd2 Nef5 e7 Rdd6 e8Q+ Rde6 Qed7 Ke5 Qg5 Rd6 Qdd8 Rd3 Qd7 Rb3 Qd3 Rb1 Qdd2 Bb2 Qb4 Qd5 Rf1 Rd1 Rh1 Bc1 Qa5 Rg1 Qb4 Qdd1 Qbd2 Rg2 Rf1 Rg1 Re1 Rf1
2B4R/nQ1rB3/q2r4/NP1qk3/1K1b1q1P/pn2p3/PPq1R1P1/r1r2Q2 w - - 0 1 legal: proof: e4 b5 f4 g5 c4 gxf4 e5 b4 e6 Ba6 Nc3 bxc3 Qh5 Bb5 Qxh7 dxe6 cxb5 e5 Qf5 e4 Qg6 Bg7 Qh7 Bf8 h4 Kd7 d4 Kd6 d5 f5 Kd1 a5 Kc2 e5 Kb3 c5 Bc4 a4+ Ka3 f3 Qh5 f4 Qe8 c2 Rh3 e3 Rb1 e2 Qh5 e1R Qg6+ Nf6 Bb3 f2 Ne2 f1Q Rf3 e4 Nd4 e3 Rh3 f3 Qg8 c4 Qg7 c3 Nc6 f2 Qg4 Ne4 Ra1 Nd2 Qd4 Rh7 Kb4 a3 Rh1 Bg7 Qe4 Ra6 Na5 Bd4 Qf3 Ke5 d6 Qg8 d7 Qd5 d8Q Rd7 Qc8 Rad6 Qb7 Qd3 Bc4 Nb3 Bd2 c1Q Rf1 c2 Qf8 Qc6 Be6 Qa6 Bg4 Rd1 Re1 f1Q Re2 Qf6 Be1 Qh6 Qf1 Qf4 Bc3 Qcd2 Rc1 Re1 Rd1 c1R Be6 Q2c2 Rdd2 Rf7 Bc8 Qde4 Rd3 Qd5 Bd2 Re7 Rc3 Red7 Rc7 Rd8 Rh7 R8d7 Rh8 Red1 Ka4 Nc6 Bb4 Na7 Bc5 Rf6 Be7 Rfd6 Kb4 Ra1 Rh6 Re1 Rh8 Rec1
4bk1n/2QP1rR1/p1BnQ1P1/1P1n1P1n/NN4q1/2rr4/2K1PrpB/6q1 w - - 0 1 legal: proof: d4 b5 g4 d5 c4 dxc4 a4 e5 axb5 f5 Qd3 fxg4 Qd2 Qf6 Qd1 Qd8 h4 g5 b4 g3 d5 g4 Ra3 Be7 Rd3 Bf6 Rd4 Bg5 hxg5 exd4 Kd2 c5 f4 h5 f5 c3+ Kc2 h4 d6 h3 b6 d3+ Kb3 d2 b7 h2 g6 g2 b5 a6 Qe1 d1R Qd2 c2 Na3 g3 Qd5 c4+ Kb2 c3+ Kb3 Qg5 Qc4 Qg4 Qe6+ Ne7 Qd7+ Kf8 Nf3 g1Q Qc7 Bd7 Qc5 Nbc6 b8Q+ Nc8 Bb2 c1N+ Kc2 Nd3 Qbb6 Ncb4+ Kb3 c2 Ne5 c1R Qd5 Ra7 Nac4 Be8 Bg2 Rf7 d7 Nd6 Qe6 Nd5 Nc6 Ne5 Nb4 Rd3+ Bc3 Rh3 Qc7 Rf1 Nb6 Rf2 Bf3 g2 Na4 Rf6 Kc2 Nef7 Be4 Nh8 Be5 Rf7 Bg3 Nf6 Bc6 Nd5 Bf4 Qe1 Rf1 h1N Bh2 Ng3 Rh1 Nh5 Be5 Rhg3 Bf4 Ng7 Rh7 Nh5 Rg7 Qg1 Be5 Ra3 Bf4 Rgd3 Bh2 Rac3+
2brQ1b1/1q1P4/nRp2K2/p3Pn2/4p2P/rPqNP2R/1Q1N4/2q1B1kb w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 h5 Ra3 hxg4 Ra1 b5 axb5 c3 Bg2 c2 Bh3 Nc6 Bf1 Nb8 Bg2 Qd4 Bd5 Qd3 Na3 Qd4 Ba2 Qd8 Bb1 cxb1B f4 e5 Qb3 e4 Qc2 Bd6 Qd1 Be5 fxe5 Bf5 Nf3 Bd7 Ng1 Bc8 Kf2 Kd7 Kg3 Ke6 Kf4 Kd5 h4 Kd4 b6 f5 b7 g5+ Kg3 f4+ Kh2 f3 Kg3 c6 d3 f2 Rh2 f1B Rh1 Qb6 Qb3 Ne7 Rh2 Rd8 Rh3 Ba2 Rb1 Bg2 Bd2 Bh1 Be1 Ke3 Nf3 Qc5 Nd2 Qc3 d4 a6 Qb5 Bg8 d5 Ra7 d6 Ra8 Qb3 Ra7 Qf7 Ra8 d7 Ra7 Nf3 Nf5+ Kh2 Ra8 Bg3 Ra7 Ne1 Ra8 Qe8 Ra7 Bf4+ Kf2 Bd2 Ra8 Nc4 Kf1 Rd3 g3+ Kh3 g2 Kg4 g1Q+ Kh5 g4 Kg6 g3 Kf6 g2 Rh3 Qf2 e3 g1Q Nd3+ Kg2 Qf8 Ra7 Qe8 Qgc1 Be1 Qfc2 Nd2 Kg1 Ra1 Q3b3 Ra3 Qbc3 Rb3 Q2b1 Rb5 a5 Rb4 Na6 b8Q Rb7 Rb3 Rb4 Qb6 Ra4 Rb5 Qb4 b3 Ra3 Qd4 Qbc2 Qb2 Qcc3 Rb7 Qb6 Rb8 Qc7 Rb6 Qb7
4b2n/1Ppr3k/Bn6/3Pq2p/PN1q4/5PpQ/KN3BPb/r1Qr1Rr1 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 Be2 Qd6 Bf1 Qxh2 b3 a3 Qc2 Ra7 Qc3 Ra8 Qb2 axb2 a4 b5 Ra2 b4 Ra3 bxa3 b4 Bb7 Kd1 Ba6 Ke1 Bc8 Kd1 Kf7 Kc2 e5 Kb3 g5 d4 Kg7 b5 h5 f6+ Kh7 d6 a2 f3 a1Q b6 g4 b7 e4 d7 e3 d8Q e2 f7 e1R Bd2 Nh6 Qg5 Bd6 f8Q Nd7 Be3 Nf7 Nd2 Qe5 Bf2 Nb6 Nc4 b1R+ Nb2 Bd7 Qc8 Rd8 Nh3 Be8 Ba6 Rd7 Qc1 Nh8 Nf4 Rg1 Nd5 Rb8 Nb4 Ra8 Be2 Ra5 Ba6 Rb5 Qg5 Rbd1 d5 Qd4 Qc1 Bh2 Qc4 g3 Qc1 Rf7 Qh3 Rd7 Nc4 Qac3+ Ka2 Qce3 Nb2 Qee4 Nc2 Rb3 Nb4 Qee5 N2d3 Rb1 Nb2 Rge1 Rg1 Rf1 Rh1 Rg1 Be3 Rgf1 Rg1 Rf2 Re1 Rf1 Bf2 Rg1 Rf1 Ra1+
5Qb1/1Pn1B2k/b1B1P3/2p2P1r/prQP2N1/RP4R1/K1qb1bp1/b2r4 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 Kf2 h5 Na3 f5 Nc2 f4 Ke1 Nc6 Ne3 Nd4 Ra5 Be7 Ra1 Nf5 gxf5 Bf8 Ng4 hxg4 e4 Kf7 h4 a5 h5 g5 b3 Kg7 h6+ Kh7 e5 c5 b6 a4 d3 g3 Kd2 g4 Kc2 c3 Kb1 g2 Qc2 f2 Ra3 f3 Qb2 g3 Qd2 c2+ Ka1 Nf6 Qf4 Ne8 Qd2 Nc7 Qg5 Bg7 Qh4 Rb8 Bg5 c1B Ka2 Ba6 Be7 Bd2 Nh3 g1B Bg2 f1R Qc4 f2 Bc6 Rd1 Rh2 f1B Nf2 g2 Ng4 Bf6 Rh3 Bf2 Re3 Be2 e6 Ba1 Rg3 Rb7 Nh2 Bh5 Ng4 Bf7 d4 Qd5 Be8 Qe4 Bc6 Rg8 Bf8 Rg5 Be7 Kh8 h7 Bg8 Qc2 Rb8 Qc4 Rh5 Qe2 Rd8 Qc4 Rd6 b7 Kg7 Be8 Rb6 Bc6 Rb4 Nh2+ Kh6 h8Q+ Bh7 Qb8 Bg8 Ng4+ Kh7 Qf8 Qc2+
4RNK1/1rnq2r1/Qq1pp2p/q2PkP2/n7/1P1P3P/q1QR2q1/1n1B1B2 w - - 1 2 illegal: No possible last move, all moves rejected
r2NkbB1/P3P1pn/1n4KP/p1Q1R1Pp/R1P3n1/3pB3/2bn3b/1q4Q1 w - - 0 1 illegal: No proof kernel
1R1Q1q2/qbN1p1rr/PP5P/rb1R3n/5nPk/N2b2b1/Q3P2b/B2r1K2 w - - 0 1 illegal: No proof kernel
BqnK4/1r2p1r1/2p1n2P/4b1q1/1N2PPnR/2P2QN1/bk1b1rP1/3B1q1Q w - - 1 2 illegal: No proof kernel
bk1r2rb/R3Q1P1/1nqP3B/1bbp1Bb1/8/n1p2NP1/2PqPr1K/5QR1 w - - 0 1 illegal: No possible last move
b1rB3n/3P1k1p/3r2p1/Rbbqb1PP/3N3R/1N3P2/1K1b1nP1/1qr3QQ w - - 0 2 illegal: Other
Kq5q/P2Rp1b1/1P1P3b/2k2bqr/R3QPqN/nqBQP3/2n1B1p1/4r3 w - - 0 1 illegal: No possible last move, all moves rejected
4b1B1/k1P3rP/1nqqpn2/3p2bR/2PPPb2/b1K5/1Q1BqNr1/1nN3Q1 w - - 0 2 illegal: No possible last move, all moves rejected
1bnR4/kr1Pp3/1p6/2RrP1n1/b1PP1N1b/qP6/bQQ2B2/1KN1nr1q w - - 1 2 illegal: Other
2Br3b/3P3p/1Pq3nQ/1QPq1r2/R1n3kP/1pb5/bN1B2P1/1bK1N1nn w - - 0 1 legal: proof: e4 b5 b4 c5 f4 d5 a4 g5 Ra3 gxf4 Rb3 dxe4 axb5 Bb7 b6 Ba6 b5 Bc8 Rb4 cxb4 d4 Kd7 Kd2 Ke6 c4 Kf5 h4 a5 d5 e5 d6 f3 c5 e3+ Kc2 f2 b7 a4 b6 e4 Qe1 a3 Qe2 a2 Qd3 a1Q Nf3 e2 Bd2 e1N+ Kc1 Ne7 Qb3 e3 Rh3 e2 Rg3 Bg7 Rg4 Qa4 Be3 Rf8 Na3 Ng6 Bd4 Bh8 Nd2 Nd7 b8Q Nde5 Ndb1 Nc4 Qb2 Be6 Qb3 Qc6 Qa4 Nf3 Nc2 e1B Be3 Ng1 Qa6 Bec3 Be2 f1N Qbb7 Ng3 Qe7 Nh1 Qe8 Qdd7 Qa7 Rd8 Nd2 Qd5 Bf3 Q7c6 Ne1 f6 Rd4 Bf7 Be4+ Kg4 d7 f5 Qa5 f4 Qb5 Bg8 Qe6+ Rf5 Qf6 f3 Bd3+ Nf4 Qh6 f2 Re4 f1B Rd4 Nb2 Nc4 Be2 Be4 Bd3 Bd2 Bb1 Bd3 Nd1 Be4 Ng6 Nb2 Ne3 Rc4 Qdd6 Rd4 Bga2 Rc4 b3 Ra4 Nc4 Bd5 Qa8 Bb7 Qd5 Bc8 Qac6
rk2q3/1B3n1K/3pPn1b/2P1Bb1P/2nn1P2/3PrqrQ/Q3pR2/1r1R3N w - - 0 1 illegal: No possible last move
3b4/1pp1bnbQ/4rBP1/P1n1q2R/1PrQ1nP1/kp3n2/1RP1NnB1/7K w - - 0 2 legal: proof: e4 d5 b4 dxe4 f4 g5 Nh3 gxf4 Ng1 a5 Bb2 a4 Ba3 Ra5 Bc1 Ra8 g4 Bd7 Na3 Ra6 Nb5 Nf6 Nd4 Bc6 Nb3 axb3 h3 Bd7 g5 Bg4 hxg4 Ng8 Nh3 Ra7 Ng1 Ra8 Kf2 Kd7 Kg2 Kc6 a4 f5 d4 h5 g6 e5 a5 e3 Bc4 e2 Ba6 e1B Rh4 e4 Qf3 Bg7 Ba3 Qe7 Be2 Nh6 Qd3 f3+ Kh2 e3 Kh1 f2 Rh2 f1N Bb2 f4 Bd1 h4 Qe2 h3 Rf2 f3 Rc1 h2 Rg2 f2 Nf3 Nd7 Qd2 Kb5 d5 Ka4 d6 e2 Qc3 Rhf8 Ba3 Ne3 Rg1 f1N Qe5 Ra6 Bb2 Nd2 Bd4 Nc5 d7 Nd5 d8Q Nf7 Qc8 Nf4 Qa8 Re6 Rb1 Bh4 Rb2 e1B Rf1 Bg5 Ng1 Beh4 Bf3 Ka3 Bg2 Nf3 Ne2 Qd6 Qc8 Bd8 Qd7 Bhe7 Qe3 Re8 Bf6 Re4 Qd3 Rc4 Qd4 Qe5 Rg1 Bd6 Rd1 Re6 Rd3 B6e7 Re3 Nd2 Rh3 Nf3 Rh5 N7g5 Qb5 Bef8 Qg1 Bh6 Qd7 Bd6 Qf7 B6e7 Qh7 Bg7 Qd4 Nf7 Bf1 Nfd3 Kg2 h1N Rh2 N3g5 Rh5 Nf4+ Kh2 Nf2 Bg2 Nd1 Kg1 Nf3+ Kh1 Nf2+
2n4b/1PQr2pr/3P1QB1/7n/RNqRP2b/1bK2b1p/p3PBPn/2k2r2 w - - 0 1 illegal: Other
K1qQ3b/3pR2N/1Q1PPB2/5r2/1n2b3/1PqP1pk1/Pr1qpb1n/1qN4B w - - 0 1 illegal: No possible last move
k3q3/4q1PP/2R4r/1rppQNrp/1qP3P1/2nK2bn/b2N2P1/Q2q2RB w - - 0 1 illegal: Other
qn1k4/3b1p1P/BqRq1n2/rp5n/1N1P1PB1/1pb5/1P1PRr1Q/2qQ2K1 w - - 1 2 illegal: No proof kernel forced: bxDB
2k1bq2/2B1P3/3qr1R1/2PPp1rP/prBN3Q/PbnK4/p4Q2/1nR1b1b1 w - - 0 1 illegal: No proof kernel
q6R/r1B1p2b/1nb1NP1P/b1r2b1n/p1Q5/1P2Q1Pp/PkBnK3/5Rq1 w - - 0 1 illegal: No proof kernel
1R3nb1/1R1r2P1/bPr1rB2/2prbQ1q/P1Bpp3/3N2P1/2nkPQ2/2b2K2 w - - 0 1 illegal: No proof kernel
2n5/P1Q1q1k1/PbnpP1p1/RR1N2n1/Kbb2NB1/1P4P1/1rp1nQb1/3r4 w - - 0 1 illegal: Other
7Q/2p1R2K/p1r1P3/brPk1pQ1/N1b2b1P/rPb1rP1b/1B3q1n/1R3B2 w - - 0 1 legal: proof: d4 e5 a4 exd4 g4 b5 g5 bxa4 Bd2 f5 Bc1 Na6 Nd2 h5 Nc4 Nb4 Ne3 Nd5 Ng4 Ndf6 gxf6 hxg4 Kd2 Kf7 Kd3 Ke6 e4 d5 c4 g5 h4 g3 b3 g4 f7 a3 e5 a2 Rb1 a1B Be3 g2 Nh3 g1R Bc1 g3 Rh2 g2 Ba3 Rh6 Bb2 Nf6 Qd2 Bd6 f8Q Ng4 Qg7 Ba6 Bc1 Bc3 Rh1 Nh2 Be2 Re1 Qg4 g1B Bf1 Re3+ Kc2 d3+ Kd1 d4 Qb2 d2 Qg5 Qe7 Kc2 d1R Qa1 Rb8 Bb2 Rb5 c5 Ba5 f3 Kd5 Bc3 d3+ Kb2 d2 Nf2 Rde1 Ne4 d1B Bd4 Be2 Nc3+ Kc6 Kc2 Bc4 Na4 Kd5 Bb2 Bf2 Rg1 Rd1 Rg2 Bfe1 Re2 Bec3 Re1 Re6 Re2 Rd2+ Kc1 Rc2+ Kd1 Rd2+ Ke1 Qd7 Kf2 Qe8 Kg3 Qg6 Ba3 Ra2 Bb2 Ra3 Kf4 Qg7 Qf6 Qe7 Kg5 Qg7+ Kh5 Qg1 Kh6 Qf2 Kg7 Be7 Qh6 Rc6 Kh7 Bg5 Ree1 Bf4 Qg5 Bc8 Re2 a6 e6 Bd7 Rd2+ Ke5 Rd3 Be8 Rd8 Bh5 Rd7 Bg4 Re7 Kd5 Bc1 Be1 Qh8 Bh3 Bb2 Bec3
3bK1rQ/1Bq2R1p/b2q1R1P/qpPnp2n/6q1/BQn3k1/2NPP1P1/n7 w - - 0 1 illegal: No proof kernel forced: bxLB
5RrQ/P2PK3/3b1Npp/p1PBPb1r/1q2nRPk/1Q2q3/1b3p1n/3rB3 w - - 0 1 illegal: No proof kernel
3Q1N1R/K1B4Q/2bbP3/1R1br2p/pp2p3/qP2q2q/nnP1PP2/k1nB4 w - - 0 1 illegal: Other
2R5/3P1p2/3q1Qp1/pr1p1qPP/bb3PNn/P1qqN2k/Kq4R1/2Q1B2r w - - 0 3 illegal: No possible last move, all moves rejected
1bN2b2/1ppnRp2/2kbQ3/K1Pb1Pr1/3Q1P2/nP5q/q1N1Pp1b/2B3R1 w - - 1 3 illegal: No proof kernel
3r2b1/1bQ2Pqr/n5p1/RP2PqRB/5pP1/1pbQrN2/1p2NPk1/2rK4 w - - 0 1 illegal: Other
n3NQr1/1r4p1/3p2B1/PqN3P1/3RPK1r/1pp1Pnr1/2bP2k1/RQ2q2n w - - 0 1 illegal: No proof kernel
2b3q1/1P1Qnp1p/P3br1n/1RB1pp2/P6P/n2KPQR1/krp3r1/N5N1 w - - 1 2 illegal: Other
8/rQ1nB1K1/p3pP1P/Pb1p3b/rr1R2p1/k4Nn1/1p2PP2/n1q1QN1B w - - 0 2 illegal: No proof kernel
2Q5/K3BB1R/p2r1Pqp/P1rn2k1/P4pq1/pp2NP1b/1r5P/1nQ2bN1 w - - 1 3 illegal: Other
3B4/2p1pp1r/pr1N3k/PRPP1K1P/Q4qn1/1nbPq3/1Rrb2p1/1NQ5 w - - 1 2 illegal: No proof kernel
6r1/1Pnpn1b1/np2p2q/2P5/R1PrQ3/1PN1Pn2/p5Np/k1KbRBQ1 w - - 1 2 illegal: Other
b3Q1RK/3N4/nr1p2BP/k4qp1/1npP2P1/qnPNB1b1/P3br2/q1Q2b2 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 b5 h4 Na3 a6 Rb1 axb5 Rb3 b4 Rg3 hxg3 e4 b5 Ke2 c5 Kf3 g5 h4 f5 d4 b3 e5 g2 c3 b4 e6 b2 e7 b1Q h5 b3 h6 c4 Be2 b2 Nb5 Na6 Qd3 Qa5 Nh3 g1Q Qc2 Bb7+ Qe4 Qa3 Bd2 Rb8 Be1 Nf6 Bd1 Nd5 Bh4 Ndb4 Rh2 Ba8 Nf2 Rb6 Ke2 f3+ Ke3 d6 Rh3 Kd7 Nc7 Bg7 Qc2 Kc6 Ne8 Kb5 Qc1 Be5 Bc2 Ka5 Nf6 Bg3 e8Q Rf8 Nd7 Qd1 Nd3 f2 Rh2 f1B Rf2 Be2 Rf4 Qa1 Re4 b1N Re7 Qe1 Rg7 Qd1 Rg8 Nd2 Bb1 Nb3 Bc2 Bh2 Bf2 Bg3 Bb1 Qf1 Bg1 Nc6 Bc2 f4+ Ke4 f3 Be3 f2 Kd5 Rf4 Ke6 Ncb4 Ke7 Re4+ Kf7 Rf4+ Kg7 Rf6 Kh8 Rf3 Qd2 Qfb1 Qc1 f1B N3c5 Rf4 Bg6 Qf5 Nd3 Rf2
RQ6/1nn2BpP/3p1Q2/pPr1r2N/Pr2rqp1/6P1/bR1P2Kb/2nNk1r1 w - - 0 1 legal: proof: f4 e5 c4 exf4 b3 b5 Ba3 bxc4 Be7 h6 Bg5 hxg5 Kf2 Ke7 a4 Ke6 h4 Ke5 e4 Kd4 e5 c5 h5 a5 e6 f5 e7 g4 e8Q c3 b4 c4 h6 c2 b5 c1N h7 c3 Qe6 c2 Qf7 f3 Qe8 f4 Ne2+ Kd3 Qe1 Nc6 Na3 Nf6 Qd1 Bd6 Kg1 f2+ Kh2 f3+ Qe5 Qc7 Qe1 Nd8 Qg3 Nd5 Rg1 Re8 Kh1 Re4 Qe5 Nb7 Qg5 Bh2 g3 Qf4 Rb1 d6 Nc4 Be6 Qf6 Nc7 Rb2 Re8 Ne3 Ba2 Nd1 R8e5 Bg2 f1R Qf2 Na8 Qa7 f2 Qb8 Nc7 Bf3 Rb4 Bd5 Re1 Kg2 f1R Bf7 Ree4 Nd4 Re5 Ne6 R1e4 Rh1 Rfe1 Rf1 Ke2 Rf3 Rf1 Rc3 Rh1 Rc6 Ke1 Ra6 Nb3 Ra8 c1R Nf8 Rcc5 Ng6 Qh6 Nf4 Nc1 Nh5 Qf4 Rb3 Rf1 Rb2 Rg1+
2Nn2kB/1N1R2p1/p1n1pP1p/1R2Pr1b/bQK1n1qn/b4P2/P3n1P1/Q3r3 w - - 0 1 illegal: Other
5R1r/qq6/rN3P2/B2qr1N1/4N3/bqqBPPn1/r2PR2P/1Knk3n w - - 0 1 illegal: No proof kernel
3n1r2/1P1n3N/1P1kPRqn/B1N3qn/2b3RP/4Kr1p/1r2P1B1/3brN2 w - - 0 1 illegal: No proof kernel
b2q4/2P1KB2/rPrP4/1r1p2R1/n2bbN2/Pp2NP2/pkNBbn1R/8 w - - 0 1 illegal: No proof kernel
r7/n1P2PP1/1r1R2N1/nrn2Bq1/r1p4q/n1P1b1B1/n3KRP1/kN1bB3 w - - 0 1 illegal: Other
Nn5r/1P1r1p2/RPP4k/5P2/RP4rB/b1B2nrb/1Kb2qBb/2N2qn1 w - - 0 1 illegal: Other
r2bK1nr/1n1P4/1p1B1k2/NnrR4/rq6/pb2PP2/1P1PB3/1n1rNB1R w - - 0 1 illegal: No proof kernel forced: bxDB
2B1Nq2/4Pbq1/3K4/prn2q1n/PbPp4/1rbPBkN1/bRBPq3/R7 w - - 1 2 illegal: Other
R4NKn/r1n1Ppp1/Pr1r2P1/4P1bb/1k3Pp1/R5B1/b2nNBq1/2R1r3 w - - 0 2 legal: proof: d4 a5 g4 b5 c4 h5 b4 Ra6 g5 Ra8 Bh3 e6 Bg4 hxg4 Qa4 bxc4 b5 e5 Qb4 axb4 dxe5 Bc5 Nf3 Be7 Ng1 Bf8 Kd2 Ke7 Ke3 d5 Kd4 b3 h4 c3 a4 b2 e4 c2 e6 Kd6 f4 Na6 b6 Rh6 b7 Be7 a5 Ra7 Nd2 b1B Bb2 c1N Ra3 Ba2 e5+ Kc6 h5 Kb5 Ndf3 Kb4 Nh4 c5+ Ke3 c4 Kd4 c3 Ng6 Qf8 Ne2 Nc7 a6 c2 Rg1 Bd7 Rh1 Qa8 Bc3+ Kb5 Be1 Nb3+ Kd3 c1R Bg3 d4 Ke4 d3 Rg1 Rh8 h6 d2 h7 Kb4 Re1 Rc6 Rh1 Rb6 Rc1 Ne8 Kd5 d1R+ Nd4 Rf1 Ne2 Bb5 Rc7 Bd3 Rc1 Rb5+ Kc6 Nc7 Kd7 Bf6 Kd6 Ne7 Kd7 Rb8 h8R Re1 Rg8 Nd2 Rc8 Ncd5 Ke8 Nc7+ Kf8 Rd5 Re8 Rd6 Rd8 Nf5 e7 Nh4 Kg8 Be4 Nf8 Bg6 Rc8 Bh5 Re8 Ng6 Rc8 Nh8 g6 Bg5 Rd8 Re6 Re8 Rd8 b8B Rb7 Ba7 Rd5 Baf2 Ra7 Nh7 Rb6 Nf8 Rdd6 Rb8 Qb7 Ra8 Qg2
5bR1/nKRr3P/1R6/pBrnnp2/8/3br1P1/PB1PpP2/1b1rNkNq w - - 1 2 legal: proof: e4 h5 b4 d5 g3 dxe4 Qg4 c5 bxc5 h4 Qf3 h3 Qg2 hxg2 h4 g5 h5 Qd6 Na3 Qd7 Rh4 gxh4 Nh3 Qg4 Ba6 Qf3 Bb2 Qf6 Ke2 Qg7 Rh1 Rh6 Ng1 Qf6 Bc1 Qd4 Ke1 Rh8 Bf1 Qd8 Ke2 Kd7 Ke3 Kc6 c4 b5 h6 e5 h7 f5 Rh3 a5 Nb1 b4 Ne2 g1N Na3 b3 Nf4 b2 Be2 b1B Bd1 Ba6 Bc2 Ne7 Bb2 Ra7 Ba1 Qd5 Rh2 h3 Rg2 h2 Bd3 h1R Nc2 Nf3 Rh2 Rd1 Nh3 Rd7 Ng1 Bb5 Ke2 e3 Ne1 e4 Bb2 Ne5 Rh3 Rg8 Rh4 Rg6 Rh6 Rgd6 Rg6 Rc7 Rg8 Rdd7 Rg6+ Kb7 c6+ Kb6 Re6 Kc5 Rd6 Rc8 c7 Nbc6 Re6 Na7 Rb6 Kb4 c5 Qc6 Bc4 Nd5 Bd3 Qh6 c6 Kc5 Bc4 Ba6 Bb5 Qh1 Bc1 Kd4 Ba3 Re8 c8R Rc1 c7 Rc5 Ra8 Ree7 c8R Re8 Bc4 Bb5 Rc7 Re6 Kd1 e2+ Kc1 e3 Kb2 Ba6 Kb3 Ke4 Ka4 Ree7 Nc2 e1R Bb2 e2 Bb5 Rd1 Ne1 Re6 Bc6 Bad3 Bb5 Rh6 Rac8 Rh4 Ra8 Rf4 Re8 Rf3 Ra8 Re3 Re8 Bg7 Rg8 Bf8 Ba6 Rc3 Bc4 Nc8 Kb5 Na7+ Ka6 Rcc1 Bb5 Rc4 Nc2 Rc5 Nh3 Kf3 Ng1+ Kg2 Ne1+ Kf1 Kb7 Bg7 Rd6 Bh6 Rb6 Bf8
3nr1b1/B1b1N1P1/1n1r1p1K/1kp1B1R1/6Nn/1P1Ppn2/1qPN1P1p/q5R1 w - - 1 2 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 h5 Nc6 Qg4 Nb8 Qh4 gxh4 g4 Nc6 g5 Bh3 g6 Bg2 g7 Bh3 Be2 Bf5 Bg4 Bc8 Bf5 Nb8 Bg6 hxg6 Ke2 Kd7 Ke3 a5 Kf4 c5 Kg5 e5+ Kg4 g5 h6 e3 Kh5 e4 b6 Kc6 d3 g4 b7 f6 b3 a4 h7 h3 Rh2 e2 Rh1 e1N Ra2 h2 Bg5 g3 Nd2 g2 Bf4 a3 Bc7 e3 Ne4 Nf3 Ra1 a2 Rf1 a1Q Nh3 g1N Rd1 Nh4 Rc1 Qdd4 Nf4 Bd6 Nd5 Qdb2 Ne7+ Kb5 Nd2 Ngf3 Rcg1 Ra6 Rg5 Nh6 Rhg1 Re8 h8N Be6 Nhg6 Bg8 Ne5 Nf7 Ng4 Nd8 Kh6 Nd7 b8B Nb6 Ba7 Bg3 Be5 Bf4 Bd4 Bc7 Bc3 Ra4 Be5 Rd4 Ne4 Rd5 Nd2 Rd6
1qr1r3/2P3pK/1R1bk1r1/2n3n1/1B1p1n2/PP2PpNb/pp1NBPR1/5R2 w - - 0 1 illegal: No proof kernel
k1N2Bb1/P1bP1bKp/NB1q2P1/6R1/q1B2nr1/5pP1/2p1pp1P/3R2nr w - - 0 1 illegal: No proof kernel
1b2r1k1/1R1R2b1/b1bn1b1Q/Q5PR/b1PB1P2/2Pn3P/K5b1/Nnq5 w - - 0 1 legal: proof: a4 b5 axb5 f5 f4 a5 d3 c5 e3 e5 Bd2 exf4 Na3 c4 dxc4 f3 Ra2 f4 Nb1 Ra7 Bc1 f2+ Kd2 f3 Ra1 Rb7 Nc3 g5 Be2 f1B Kd3 g4 Nb1 f2 Kd2 Rb6 Nh3 Rf6 Ng1 Rf4 exf4 Ba6 Bd3 Bb7 Be2 Bc8 Bf3 h6 Nc3 h5 Ne4 Ke7 Nf6 gxf3 g4 Kf7 g5 Ke7 Ng4 hxg4 Ke3 Kf7 Kd2 Ke8 Kc3 Kf7 Kb3 d5 h3 d4 b6 a4+ Ka2 g3 b4 a3 b5 g2 b7 d3 b6 d2 Kb1 a2+ Kb2 Nf6 Qe1 d1B Qe7+ Kg8 Qe4 Ne8 Qe7 Nc6 b8Q Ba6 b7 Ne5 Qc8 Nd6 b8R Bg7 Rb1 a1B+ Ka2 Nd3 Qe1 Baf6 Ne2 g1B Qc6 Bg2 R1b7 f1B Qa5 f2 c3 Ba4 Nd4 Qf8 Qcb6 Bgc6 Nb3 Bfg2 Na1 f1N Be3 Nd2 Bd4 Nb1 Ra8 Bf2 Rd1 Qe8 Raa7 Qe1 Rd2 Qc1 Rd1 Bh6 Rh7 Bf8 Rab7 B8g7 Rh5 Be3 Qf5 Bf2 Qg6 Be3 Qh6 Bg1 Qa5 Be3 Be5 Ba7 Bd4 Bb8 Re1 Bcb5 Ree7 Bbc6 Red7 Kf8 Rb3 Rg8 Rd8+ Kf7 Rb6 Rf8 Rd7+ Kg8 Rbb7 Re8
R2qBN2/3P2r1/b2p1qP1/P5Q1/2Q3P1/PKNpn1r1/7k/bN3bqq w - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 d6 b4 Nd7 d5 Bg7 c4 Bf8 bxa5 c6 c5 cxd5 c6 d4 e4 e5 cxd7+ Ke7 a3 f6 Be3 d3 Bd4 Qb6 Ra2 Qc7 Re2 exd4 e5 Qb6 e6 Qd8 Re5 fxe5 Kd2 b5 g4 h5 f4 h4 f5 b4 g6 Kf6 e7 Kg5 e8N Kf4 f6 Kg3 f7 h3 Bg2 h2 Be4 b3 Nh3 b2 Ng7 Ne7 Bb7 e4 Qf1 e3+ Kd1 d2 Kc2 d1B+ Kd3 e2 Kc4 e1Q Bd5 d3 Qf5 Qf1 Nf4 Be2 Qe5 Nf5 Kc3 Ba6 Nge6 Ne3 Kb3 Bg7 f8Q Rh3 Qg5 Qf3 Bc4 Bf1 Nd5 Qff6 Qf7 Kg2 Ndc3 Rg3 Nf8 Kh3 Rg1 h1Q Rg2 Rc8 Rc2 Bh8 Rc1 Kh2 Qg8 Bg7 Bf7 Ra8 Be8 Rc8 Qc4 Qg1 Nd2 b1Q+ Ka4 Qb7 Ndb1 Qbh1 Kb3 Qe6 Nd1 Ba1 Ndc3 Qef6 Re1 Rc5 Rc1 Re5 Re1 Re7 Re2+ Ng2 Re5 Rg7 Rc5 Rf7 Rc8 Ne3 Ra8 Rg7
3b4/RBKn1p2/1QbQ1B2/1b3PPk/2r3b1/1Pp2pPP/4B3/3qbqN1 w - - 0 1 illegal: No proof kernel
k1n5/2P1QQ1R/KbPP2nr/1p2P3/6b1/2nqR2P/2Bn1r2/1Rnqq2N w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 b4 a5 c5 Rh7 Na3 Rh8 Nc4 Qe7 b5 dxc4 Ba3 c6 bxc6 Qd8 Bb4 axb4 e4 b5 Ke2 g5 d4 f5 a4 g4 d5 b3 c7 Kd7 a5 b2 e5 b1N a6 f3+ Ke3 g3 Kd4 f2 a7 c3 h6 c2 h3 c1N h7 g2 Ra6 f4 Qe1 f3 Qe4 Nc3 Ra1 Ne7 Qe1 Ng6 Ne2 g1Q Ng3 Bh6 Be2 f1N+ Qf2 Nd2 Ra3 Qe1 Bd1 Bg5 Qf1 f2 Bc2 Bh6 Qc4 f1Q Qa2 Rf8 h8R Rf2 Qb3 Bg5 Rh7+ Be7 Rg1 Qd1 Nh1 Nc6+ Ke3 Rb8 a8Q Na7 Kd4 Rb6 Qb8 Rbf6 Qb6 Qfe1 Qe6+ Ke8 Qd6 Bg4 Qc4 Nc8 Qe6 Nce4 Re3 Nc3 Qf7+ Kd7 Qb4 Nd6 Rf1 Kc8 Rg1 Kb7 c6+ Ka7 Kc5 Ka8 Kb6 Nc8+ Ka6 Bc5 Rf1 Bb6 Qbe7 Qd7 d6 Qf5 Rg1 Qd3 Rg2 Be6 Rg4 Bd7 Rb4 Bg4 Rb1 Nf8 Ra1 Rh6 Rb1 Ng6
n3n1q1/4n3/P2Rn1P1/1kn2QrR/2Rb2Qn/3PPbBK/2pP1n2/N3r3 w - - 0 1 legal: proof: f4 d5 b4 e5 fxe5 a5 g4 axb4 Ba3 d4 Bh3 d3 cxd3 g6 Bc1 Ra3 Nc3 Ra8 Ne4 h6 g5 h5 Bf5 gxf5 Nf2 Qd5 Ng4 hxg4 Nh3 Qd6 Ng1 Qd8 Kf2 Kd7 Kg3 Kc6 a4 b5 h4 b3 g6 f4+ Kh2 f5 a5 f3 h5 f4 a6 b4 h6 b2 h7 b1N e6 f2 e7 f1N+ Kg2 g3 e8R b3 Ra3 b2 Qb3 Nd7 Qa2 f3+ Kh3 f2 Rh2 g2 Qf7 Ndf6+ Re6+ Kb5 Nf3 g1N+ Kg2 c5 Rc6 c4 Rh6 c3 Ng5 c2 Rd6 Nh2 Rh3 f1N Nf3 Ne8 Qa2 Ng3 Rf6 Ne4 Qa1 Ng5 Re6 Nc3 Qa2 b1N Rc6 Ng4 Rf6 Ne7 Nh2 Ncd5 Bb2 Bb7 Nf3 Nbc3 Ra4 Nf2 Rc4 Nb6 Rh5 Nce4 Be5 Nc5 Rd6 Bg7 Bg3 Nge6 e3 Rb8 Qa1 Na8 Qf1 Bd4 Qd1 Rf8 h8Q Rf5 Qe5 Rg5 Qf5 Qc8 Kh2 Qd8 Ne1 Be4 Qdg4 Nf3+ Kg2 Nh4+ Kh2 Bd5 Nf3 Nh1 Kh3 Rb7 Ng1 Bf3 Ne2 Rb6 Nc1 Nf2+ Kh2 N8g7 Nb3 Qg8 Na1 Ne8 Qe5 Ka5 Qef5 Rb1 Qe5 Kb5 Qef5 Ne4 Kh3 Rc1 Rd7 Re1 Rd6 Nf2+
2r1QB2/1r1Prp2/B1rn1P1K/N3q1n1/1BP2Q1p/1qb1P3/2kP3R/r1n5 w - - 0 1 illegal: No proof kernel
4q2n/Qn2b2b/Rr1pR2Q/PpP1B3/3n1q1N/KQ2P1kq/1PP5/5n1n w - - 0 1 illegal: No proof kernel
Q2q1B1r/p1q5/Pn1PK1QN/1Np1b3/b1P4q/2qQ1RPn/2p2r1P/6k1 w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 g5 f6 Qd7 f3 Qh3 f4 Qc3 bxc3 d4 Kf2 dxc3 Ke2 Bh6 Ke1 Bf8 a4 Bh6 f5 Kd7 Ra3 Nc6 Rb3 Kd8 Rb5 Ke8 Rd5 Nb8 Rd4 Bf8 g3 h5 Rd3 h4 Rd4 h3 Rf4 gxf4 Bg2 hxg2 Ke2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 b5 f7 f3 f6 b4 d3 f2 a5 f1Q a6 c2 Bd2 b3 Bg5 b2 Ne2 g1Q Nd4 Nd7+ Ke6 Nb6+ Ke5 Bg7 f8Q Nh6 Nb5 Nf7+ Ke4 Bd7 Bc1 Qh3 Qf3 Qh4+ Qf4 Qd1 Nd6 e5 Qg8 Ba4 Kf5 e4 Qd2 Kd4 Ke6 c5 Na3 b1Q Rf1 e3 Rf3 e2 Qh7 Qb4 Qg6 e1Q+ Qe2 Qb2 Bh6 Qa5 Qf1 Raf8 Nf5+ Kc3 d4+ Qd3 d5 Ng5+ Kd6 Kd2 f7 Qbc3 Nb5 Be5+ Ke7 Qdd4 Qd3+ Ke1 d6 Nh3+ Ke6 Qd8 Bg7 Q4h4 Nh6 Qc7 Re3+ Kf2 Rf3+ Kg2 Qe2+ Kg1 Qed3 Rd8 f8Q Rd7 Qa8 Rf7 Bf8 Qcd8 Re3 Rf2 Rf3 Nc8 Bg7 Qac7 Bf8 Nb6
RK4n1/3P1b1k/6pb/npN1PQ2/1q2BN1r/N1p2r2/PP1P1p1p/5Q1b w - - 0 1 illegal: No proof kernel forced: bxDB
1N1K1bq1/2b5/nN2p1r1/1BpP2Q1/1RPP1qQ1/4Pnp1/1Pn2N1k/3r2nb w - - 0 1 illegal: Other
q3q2k/3pbn2/BP2PNK1/Q1pPBq2/2P1p3/B2R3r/Pb3rp1/2nb2Q1 w - - 0 1 illegal: No proof kernel
kn5b/B3ppP1/4bR2/1pRq3p/3KPn2/PP2Prn1/1QQ1r2r/3N1q1Q w - - 0 1 illegal: No proof kernel
2BQ4/3rp1n1/2n5/Bp2rp2/1Pp1PKNk/Q3P1R1/qpQPbP2/2bb1b2 w - - 0 3 illegal: Other
2k4r/2p1PK2/1qB2Bb1/3PrqPn/P1r2R2/2R1P3/1R2b3/nNnq1B2 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 axb4 a4 e5 f4 Bc5 fxe5 Bd6 Qb3 Bf8 Qa3 bxa3 h4 Qd7 g4 Ra6 g5 Qd8 Nc3 Re6 Ne4 Ra6 Nf6+ gxf6 Nf3 f5 Ng1 Bh6 g6 Bg5 hxg5 f4 Bg2 Ra5 Bf1 Ra8 Kf2 Kd7 Kf3 f5 d4 h5 e3 b5 g7 h4 d6 h3 Be2 h2 Nh3 a2 Bd1 b4 Rg1 h1R Bb2 b3 Rg3 Nf6 g8B Nc6 Rc1 a1N Rg4 Ra5 Nf2 R1h4 Nd3 Nh5 Ne1 Nb4 Bd5 Nd3 Rc3 Nc1 Nc2 Qf6 Bc4 Ba6 e6+ Kc8 e7 Re5 Na3 Qe6 Bf1 Be2+ Kf2 f3 Nb1 f4 d7+ Kb8 d5 Qb6 d8R+ Kb7 Rd6 Kc8 Rg2 Rg4 Rf6 Rh4 Bc2 Rg4 Bd3 Rh4 Ba3 b2 Bb5 Rg4 Bc6 Rh4 Nd2 b1B Bb2 Bh7 Nb1 Rg4 Ke1 f2+ Kd2 f3 Rf4 Re4 Rd3 Rh4 Bf6 Re5 Rc3 Rg4 Rc5 Rh4 Kc3 Rg4 Kd4 Rh4 Rh2 Rg4 Bg2 f1Q Bh3 f2 Rg2 Qa6 Rc3 Qh1 Rh2 f1Q Bg2 Qf3 Bf1 Rh4 Rf2 Qhh3 Rh2 Qf5 Rg2 Bd1 Rd2 Be2 Rb2 Qb6+ Rc5 Qf2 Rg4 Qc2 Re4 Rf5 Rg4 Qd2+ Ke4 Qd1 Rc3 Rf3+ Ke5 Rf5+ Ke6 Re5+ Kf7 Qf5 Rg1 Rf4 Rg4 Rc4 Rf4 Bg6#
r2q2n1/RRP1kPPB/8/4rb1N/B1nB4/5KPp/1P4rb/2brnnR1 w - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 g5 hxg5 f5 d4 exd4 e5 c4 Qd3 cxd3 Nd2 Kf7 Ne4 fxe4 Ra4 Ke7 Ra1 Ke8 c4 h5 f4 d5 Kf2 a5 b6 e3+ Kf3 h4 e6 d2 b7 d1R g6 d3 g7 d4 e7 e2 f5 e1B f6 d2 c5 a4 c6 h3 c7 a3 Ke4 d3 Kf4 a2 Ne2 Nc6 b8R Bg3+ Ke3 Re1 Rb6 d1N+ Ke4 d2 Kf3 Bf5 Rb7 Na5 Rg1 Ne3 Rb4 d1R Nf4 Bh2 Nh5 Nac4 Bd3 Nf1 Rb7 Re5 Be3 Rh6 Bd4 Rg6 Rc1 a1N f7+ Kd7 e8B+ Ke7 Ba4 Nc2 Ra1 Bf4 Be8 Bc1 Raa7 Ne1+ Kf2 Ke6 Ba4 Bd6 Bb1 Ke7 Bd3 Re4 Bb1 Bh2 g3 Rge6 Bbc2 R6e5 Bd3 Nc2 Kf3 Re2 Be4 Rg2 Bd3 Be6 Bg6 Bf5 Bh7 Ne1#
Rnn4b/1KP1RP1B/5BN1/1B1Pp3/1q1bbP1r/1r1pP1n1/3k4/2Rr1r2 w - - 0 1 legal: proof: c4 a5 g4 f5 gxf5 c5 d4 g5 h4 d6 hxg5 Nd7 b4 axb4 d5 Nb8 Qd4 Be6 Nc3 Bd7 Ne4 cxd4 c5 Be6 c6 Bc8 Nc5 dxc5 Kd2 Kf7 Kd3 h5 Kc4 b5+ Kd3 e5 Ke4 h4 a4 b3 f4 d3 f6 Kg6 c7 h3 f7 h2 a5 c4 a6 b2 a7 b1R Ra2 b4 Rd2 c3 Ra2 c2 Bh3 b3 Rb2 Bg7 Nf3 Rh4 Bd7 Bh8 Bb5 Qe7 e3 Kh5 g6 Kg4 Re1 h1N g7 Qc5 Rd1 Ne7 g8B Qd6 Ra2 b2 Bh7 Qc5 Bd2 c1B Be1 Be6 Ra6 Nc8 Bg3 Ra1 Rd6 b1R Rd7 Bb2 Rc1 Bd4 Re7 Rb3 Be1 Qb4 Bf2 Rh3 Nh4 Rf3 Bg3 Rf1 Ng6 Rab1 Bh4 Bd7 Rc3 Rbd1 Bf6 Kg3 Rc1 Kf2 Bg5 Bg4 Bf6 Bf3+ Kf5 Ke2 Ke6 Kd2 Rd7 Ng3 Re7 Na6 Kd7 Be4 Kc6 Rb8 a8R Rb6+ Kd7 Rc6 Kd8 Rc2 Kd7 Ra2 Kc6 Nb8+ Kb7 Ra1 Ra5 Rh1 Ra7 Rh4 Ra8 Rf1 Rc4 Rae1 Rc1 Rd1
4RK1r/P3n1P1/4q3/1p1Npn2/n1kN2Nn/2n1brB1/PPqB2P1/6bB w - - 0 1 illegal: Other
3n3r/3PP2k/1nPQNp2/2Br4/P2Bbb2/b1p1b3/qN3PqB/1q1NK3 w - - 0 1 illegal: No proof kernel
2Qnrr2/qr2p3/1k1p3r/3PP1N1/B3P2b/3bp2B/N1P1P3/1q1B1NKq w - - 0 3 illegal: Other
1bNB4/1Pb1pqqp/B1r1BQp1/1q2P2P/7N/2n3PP/K2b4/1nkb3N w - - 2 3 legal: proof: a4 c5 Ra2 b5 Ra3 bxa4 Ra1 a5 g3 Qc7 g4 Qg3 fxg3 Ra6 Kf2 Rh6 Ke1 Rh5 gxh5 Bb7 Ra2 Ba6 Ra1 Bc8 b4 d6 c4 Be6 b5 Bd7 h3 Bc8 Ra3 Nc6 Rb3 Nb8 Rb4 cxb4 c5 d5 Rh2 Kd8 Rf2 Kd7 Rf4 Ke8 Rc4 dxc4 e4 Kd7 d4 Ke6 Kd2 f5 Kc2 c3 c6 a3 Kb3 c2 b6 f4 b7 f3 d5+ Ke5 d6 a2 c7 a1Q d7 g6 d8N f2 Nd2 Kd4 Qe1 Bg4 c8B Nd7 Qd1 Ke3 Ngf3 a4+ Kc4 a3 Kb3 a2 Bc4 f1Q Ne5 Bg7 Be2 Ngf6 Nef7 Nd5 Bb5 N7f6 Bcd7 Nc3 Ba6 Nfd5 Nd6 Nb1 Bb2 c1B Nc8 Qf7 Bf6 Ndc3+ Ne6 Qb2+ Kc4 a1B Be5 b3 Bc7 Be5 Nf3 Bd2 Bd8 Bb8 Qf1 Rg8 Nh4 Bd1 Kb4 Rf8 Nc5 Rh8 Ba5 Rd8 Bf5 Rd6 Be6 Rc6 Bd8 Bc7 Qf6 Bb8 Nd7 Bc7 Ne5 Bb8 Nc4+ Kd3 Ne5+ Kc2 Ng4 Kc1 Bb6 Qg7 Ba5 Qa2 Nf2 b2 Bd8 Qd5 Bg4 Qdf7 Be6 Na3 Nh1 b1Q+ Bb3 Qd3 Bbc4 Nab1 Be6 Be2 Kb3 Bb2 Nf5 Ba3 e5 Bad6 Nh4 Bdc7 Qf5 Kd1 Kb2 Qb5+ Ka1 Kc1 Qf6 Nd5 Ka2 Bf3 Ka1 Bd1 Ka2 Ndc3+
K1r4N/1pP1NPpp/P2r4/4kn2/1p2b3/nP1B2P1/B1N2p1b/1rb2RB1 w - - 1 2 illegal: No possible last move, all moves rejected
1R2b2B/4p2b/2r4p/NR6/Np1P1k1P/N2KrqRn/2PPP1b1/1rb3nb w - - 0 1 illegal: Other
q1N5/n2bqbqn/pn4Q1/rp1p1N2/Pk1P3K/rPR4P/1P1N3n/R2R4 w - - 0 3 illegal: Other
1R1qQ2R/3q3P/rP1p4/NbNP4/p2N1pb1/P3PR1n/Kb2n1pk/2q2r2 w - - 0 1 legal: proof: g4 e5 f4 g5 fxe5 b5 c4 bxc4 b3 Bc5 Ba3 Bb4 Bh3 Bf8 Bc5 h6 Be3 h5 Bf4 gxf4 g5 Bg7 Bf5 Bf8 Bg4 hxg4 d4 Ke7 Kd2 Ke6 Kc2 Kf5 Kb2 a5 h4 c5 d5 a4 h5 c3+ Ka3 c2 e6 c4+ b4 c3 e7 d6 e8R g3 e3 g2 g6 f3 b5 Kg4 h6 Kg3 h7 c1Q+ Kb4 f5 a3 c2 g7 f2 Nf3 f1B Kc3 Nc6 Nd4 Ra6 Nd2 Nf6 g8N Bg7 Qh5 Ng4 Nf6 Nf2 N2b3 Rf8 Nd7 Nh3 Ndc5 Be5 b6 Bb5 Rf1 Kh2 Na5 Qb1 Ra2 c1Q+ Rc2 Bh8 Rf3 Rf6 Nde6 Nd4 Qf7 Bg7 Rh8 Bcd7 Qe8 Qa1+ Kb4 Ne2 Rc4 Qe5 Nd4 Qee7 Rc2 f4 Rc3 Rh6 Rc4 Bg4 Rc3 Neg1 Rc2 Qed7 Kc3 Qd2+ Kb2 Ne2 Ka2 Qc1 Ncb3 Bf6 Rc8 Rh5 Nc5 Rh6 Ndb3 Bb2 Nd4 Kg1 Qe6 Ng5 Nab3 Rh1 Qe8 Kh2 Na5 Rf1 Rb8 Nh3
1k1B1n2/2n1n2p/2nR1r1P/Ppp2BPK/1Pb5/b2pnrR1/B1PR2q1/Q7 w - - 0 3 legal: proof: d4 e5 dxe5 g5 f4 gxf4 b3 a5 b4 a4 a3 Qg5 Nf3 Qe7 Nbd2 Qd8 Nb3 axb3 Nd2 Ke7 Nb1 Ke8 Nc3 Be7 Na2 bxa2 Bd2 Bd6 Bc1 Bf8 Kf2 d5 Kf3 Kd7 Kg4 b5 h4 f5+ Kh5 c5 g4 Kc7 e4 f3 e6 d4 a4 f2 a5 d3 e7 f4 e8B f3 e5 Bg7 g5 Nc6 e6 Qd5 e7 Bb2 Bg2 f1N Rg1 f2 Bh3 Ne3 Qd2 f1N Bg6 Ra6 e8R Ba3 Rg4 Qg2 Rg3 Nd5 Bf7 Be6 Bf5 Nge7 Qc3 Nfe3 Bb2 Rf8 Rd1 a1N Rd8 Nb3 Rd2 Nbd4 Rd6 Kb8 Ba1 Nc7 Qb2 Bc8 Ba2 Nde6 Qc1 Rf7 Bf6 Nf8 Qf1 Be6 Qa1 Ng8 Bd8 Nge7 Bg6 Rf3 Bf5 Nc4 Kg4 Rb6 h5 Ne3+ Kh4 Bg8 h6 Bc4 Kh5 Na7 Rd4 Rf6 Rd6 Nac6
Bn1k4/B1bp4/1pRPp3/3qPr2/pR3rbp/P2R2BP/1K1rP3/1Nn4r w - - 4 6 legal: proof: f4 f5 g4 fxg4 a3 b5 c3 b4 Qa4 e6 Qb3 Qf6 Qd1 Qe5 fxe5 Kd8 Qc2 Ke7 Qd1 Ke8 d3 b3 Nd2 Bb4 Nc4 Bb7 Qd2 Bc8 Nb6 Nc6 Qc2 Be7 Qb1 Kd8 Qa2 bxa2 b4 Ke8 b5 Bc5 Na4 Bb4 b6 Bf8 b7 Nb8 Nb6 cxb6 Kd2 h5 Kc2 g5 c4 a5 d4 g3 d5 a4 h3 g2 c5 h4 c6 g4 c7 g3 Bh6 Ne7 Bd2 Rh5 Rc1 a1Q Bh6 Nec6 Nf3 g1R Ng5 g2 Ne4 Bd6 Re1 Rf5 Nd2 Na5 Nb1 Nb3 Bf4 Nc1 Rd1 Qd4 Rd3 Ke7 Bg3 Qe4 Rh2 Rh1 Kb2 g1R Bg2 Rd1 Bf3 Rf4 Rf2 Rf7 Rd2 Nc6 b8B Bb7 Ba7 Raf8 c8R Nb8 Rc3 Bc7 d6+ Kd8 Rdd3 Qc4 Bg2 Bf3 Rf1 Bg4 Ba8 Qd5 Rf4 Rf6 Rfc4 Rf4 Rb4 R8f5 Rc6 Rd2+
rR3r2/1R1P1Q2/1Pq5/3p1PBK/3bB1Rr/1P2P3/k4n1r/nq1rQ3 w - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 h5 axb5 e6 g4 Bd6 gxh5 Be7 d6 Bf8 d7+ Ke7 dxc8Q Qd3 Nc3 Qd8 d4 Ke8 d5 f5 e3 f4 d6 f3 Nge2 fxe2 Nd5 exd5 Kd2 Rh6 Rg1 Rh7 Rh1 Rh8 f4 e1Q+ Kd3 g5 h4 a5 d7+ Ke7 b3 Kd6 b6 Kc5 f5 Kb4 h6 c5 h5 g4 h7 c4+ Kd4 a4 Ke5 a3 Kf4 c3 h6 a2 Qb7 c2 Rb1 a1R Qc8 g3 Kg4 g2 Rg1 Qc7 Rb2 Ka3 Ba6 Bg7 Rh1 g1R+ Kh5 Rg2 Bd3 Qc6 Qe8 Bd4 Be4 Na6 Rh4 Rh2 Qf7 Rf8 Rb1+ Ka2 Ba3 c1R Be7 Rh3 Bg5 Nb4 Qe2+ Rc2 Rc1 Rb2 Rc4 Qb1 Qe1 Rbh2 Rc5 Nc2 Ra5+ Kb2 Ra7 Ra8 Rb7 Nf6+ Kg6 Ka3 Rg4 Rhf8 h8Q Kb2 h7 Ka2 Rh4 Ng4+ Kh5 Nf2 Qhf6 Qb2 h8R Rd1 Q6e7 Na1 Q7b4 Rf3 Qc4 Qb1 Rg8 Nh3 Rg4 Rg3 Qcb4 Rf3 Qh4 Nf2 Qe1 Rfh3 Qe6 Rf6 Rgb8 Rf8 Qf7 Rxh4+
4n1n1/7n/PQP2P2/pbq1kq2/3n3Q/bR1RpR1r/N4NPP/3K3b w - - 0 1 illegal: Other
1b1B1KN1/1b3N1Q/4p1Pn/1q1n1p2/2P4P/1p1N1P1q/1NR1Pp2/1kb1b3 w - - 0 1 legal: proof: b4 a5 a4 c5 d3 c4 Ra2 c3 Rb2 cxb2 Nc3 b1N b5 Nd2 Ba3 Nb3 Bb2 Nf6 Bc1 Ng8 f3 h5 d4 g5 Nb1 g4 Bg5 g3 Be3 Nc5 Bh6 Nca6 bxa6 b5 Bf4 b4 Bc1 Rh6 Nc3 Rg6 Bg5 Rg7 Bc1 Rg5 h4 e6 Be3 f6 Nb1 b3 c4 Rb5 axb5 a4 b6 a3 Nc3 a2 Qc1 Ra7 Bh6 Rc7 Qd1 Rc5 Bc1 Rg5 d5 Ke7 d6+ Kf7 Kd2 Re5 Ba3 Rc5 Bc1 Rc7 dxc7 Bb7 c8Q Bd6 Qc5 Bd5 Qf2 gxf2 g4 Bf8 g5 Bb7 Bh3 Bc8 Bg4 hxg4 Ke3 a1B Kf4 d5 a7 f5 Ke5 d4 a8N d3 b7 g3 Ba3 d2 Bc5 g2 Be7 Bb2 Nh3 g1B Nf4 Bc1 Nb6 Bh2 Nb5 Na6 b8N Qe8 Kd6 Nc7 N8d7 Nh6 Nf6 Nd5 Na4 Bb7 Ng8 Bg3 Qg1 d1Q Nb2 Qf1 g6+ Kg7 Qh2 Qh3 Rf1 Qb8+ Kd7 Qe5 Bd8 Bb4 Ke8 Be1 Nfd3 Qb8 Nd6 Be5 Ne7 Kf6 Kf8 Bef4 Qg3 Be5 Qg4 Bg3 Qh5 Bh2 Nb4 Ke5 Nf7+ Kd4 N4d3 Kc3 Ng8 Kc2 Rh1 Kb1 Rg1 Ng4 Qh7 Nh6 Rf1 Qc7 Rg1 Qb6 Rh1 Bb8 Rg1 Ba5 Rd1 Be1 Rd2 Qc6 Rc2 Qb5
3n1QN1/qnrP1PN1/1P3nN1/n1Nn4/bq1B1bPK/k2r2q1/2P5/3R1q2 w - - 0 1 legal: proof: h4 f5 a4 d5 b4 g5 e4 gxh4 exf5 c5 a5 b6 Bd3 Nf6 Be4 dxe4 Ra4 Ng8 axb6 Bd7 b5 Bc8 Rb4 cxb4 d4 Kd7 g4 Kd6 f4 h5 Kf2 e5 f6 a5 f7 a4 d5 Kc5 b7 b3 b6 Kb4 d6 e3+ Kf3 h3 Kg3 e4 f5 h4+ Kf4 b2 f6 e2 Kg5 e1Q Ne2 a3 Rg1 h2 Ng3 h1Q Nf5 e3 Qd5 h3 Nd2 b1N Rf1 e2 Qe5 a2 Ne7 a1N Rf2 h2 Nc4 Qd7 Rf5 Qe4 Rf1 h1Q Nb2 Nc3 Qb5+ Ka3 Rf5 Qb4 Qd3 Qhf1 Rb5 Rh3 Qf3 Nb3 Ng6 Qg3 Rd5 e1N Be3 Nc6 b8N Nba5 Na4 Nd8 Rd1 Nd3 Bd4 Ra7 Nc6 Rc7 Nc5 Nd5 Nce7 Bb7 Qf2 Bc6 Qf5 Bg7 f8N Ba4 Nfe6 Bf8 f7 Ngf6 Ng8 Be7 Ng7 Bf8 Nb3 Nc5 Qd3 Ncb7 Nc5+ Bb3 Qa6 Qda4 d7 Bd6 Qa8 Bf4+ Kf5 Nac6 Qb8 Qa7 Qc8 Nca5 Qa8 Bd6+ Kg5 Ba4 Qb8 Qgf2 Qa8 Rd3 Qb8 Qe3+ Kh4 Bf4 Qc8 Ndc6 Qe8 Ncd8 Qf8 Qg3#
1N2k1q1/1r2b2P/P3p2P/RpN1Pr2/1nPrq2R/2Qb3n/KQ5N/2b1r3 w - - 0 1 legal: proof: d4 c5 dxc5 h5 b4 a5 g4 axb4 gxh5 Qa5 Kd2 Qb6 Ke1 Qd8 e4 f5 a4 Nc6 e5 Nb8 Ba3 bxa3 Bg2 Ra6 Bd5 Ra8 Be4 fxe4 Kd2 g5 Kc3 b5 Kb3 d5 f4 a2 c4 d4 h4 e3 h6 d3 h7 d2 f5 e2 a5 e1Q a6 g4 f6 g3 c6 g2 h5 Bf5 c7 e6 c8Q Nh6 Ne2 g1R Qc2 d1R Nd4 Ra7 Qc7 Rb7 Nf3 Qe4 Nh2 Nf7 h6 Nc6 Nc3 Rd4 Qa5 Nb4 Qb2 Re1 Na4 Ng5 Nc5 Nh3 Qaa3 Be7 f7+ Kf8 Qa5 Rg8 Qaa3 Rg5 Qc3 Bg6 Qab2 Rf5 Ka3 Bh5 Kb3 Be2 Ka3 Bd3 Kb3 Bg5 Ka3 Ke7 f8N Ke8 Nfd7 Be7 Nb8 Qc8 Rg1 Qd8 Rg4 Qc8 Rc1 a1B Rh4 Nc2+ Ka2 Qd8 Qbb4 Bb2 Ra1 Bc1 Qbb2 Nb4+ Kb3 Kf7 Ra5 Qg8 Ka3 Ke8 Kb3 Nc2 Ka2 Nb4+
qK2Q3/P1r1n1N1/kb1b3p/1nq1B1N1/P3BpP1/2bp1rB1/4PPQ1/4q3 w - - 0 1 legal: proof: c4 d5 d4 dxc4 a4 e5 b4 a5 bxa5 Nc6 d5 Bh3 Ra2 Bc8 Rd2 Nb8 Rd4 exd4 h3 Bg4 hxg4 g5 Rh4 gxh4 g5 h3 g4 h2 Kd2 Kd7 d6 Kc8 a6 h1Q a7 b5 g6 Kb7 g7 c5 d7 f5 Ba3 c3+ Kd3 f4 Bh3 c2 Nf3 c1B Ke4 d3 Ke5 c4 Qd2 b4 Qa2 b3 Qd2 b2 Qa5 c3 Ne1 c2 Nd2 b1Q Ndf3 Na6 Nd4 Qc7+ Bd6 Be3 d8B c1B Nef3 Bcd2 Nf5 Rc8 Bh4 Bb6 Bg3 Ne7 g8Q Qbe1 Bg2 Qc5+ Qd5+ Rc6 Ng5 Nc7 Be4 Nb5 Ng7 Bc3+ Ke6 h6 Kd7 Qf3 Qb4 Ka6 Be5 Rh7 Qf7 Re6 Qe8 Qfh1 Bg6 Qa8 Qe4 Qh1 Qg2 Qe1 Bf6 Re3 Be5 Rf3 Be4 Nd5 Bb8 Bd6 Bc7 Qac6+ Kc8 Ne7+ Kb8 Ng6 Nh3 Bf8 Nf5 Re7 Be5 Rc7 Ng7 Bd6 Ng5 Ne7 Bf6 Q6d5 Be5 Qa8+
4Qn2/1K1pR1b1/Pp3p1R/1Q1P1n1P/n1r2Pq1/3k1N1P/N1qNq2n/2r5 w - - 0 2 legal: proof: d4 h5 c4 b6 b4 Nh6 h4 Bb7 b5 Ng8 Bf4 Bd5 Bg5 Be6 d5 Bh3 gxh3 Rh7 Bg2 Rh6 Bf3 Rh8 Bg4 hxg4 Bf6 e6 Bd4 e5 c5 exd4 cxb6 Ke7 b7 Ke8 b6 axb6 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 f4 Kc4 a4 c5 e3 g5 a5 g3 h5 g2 a6 g4 Qd2 f6 Nc3 g3 Nge2 g1N Ra2 d3 Rc2 g2 Ng3 Bg7 Nf1 Nf3 Rg1 Nh2 Qe2 Qe8+ Kf5 Nc6 b8N Ne5 e4 Ng6 e5 Nf8 Nc6 Rc8 e6 Qe7 Nd4 Nh6+ Ke4 Nf5 Nf3 Qe8 e7 Rg8 Rc1 Rc6 Qb2 d2 Re1 d1N Na2 Rc7 Qb1 Nb2 Re2 Na4 Qb2 Qg6 e8Q Qg3 Re1 Qg4 Qe2+ Kb3 Qb5+ Kc2 N1d2 c4 Rgf1 g1Q Re3 Qf2 Rg1 Qgh4 Rg6 c3 Rh6 Rc4+ Nd4+ Kd1 Qb2 c2 Qb1+ c1Q Qb2 Bh8 Qb5 Rg1 Re2 Ne7 Re3 Ng8 Kf5 Bg7 N4f3 Kc2 Re2 Kd3 Re6 Re1 Re2 Ne6 Kg6 Qc2 Kf7 Ne7 Re5 Nf5 Re4 Ne3 Ke7 Rc1 Kd6 Qe2 Re5 Nf8 Re7 Nc5 Kc7 Na4+ Kb8 Qg4 Kb7 Nf5
Q1nkB2n/q1pp1qKP/2nb1PpB/3p3R/n1N1b1P1/3P4/5BPb/B7 w - - 0 1 illegal: No proof kernel
rnKb1kNr/3R1r2/1b1N1b2/Q1r3n1/P2P2Qp/1p1R3P/1P4bP/5Rnq w - - 0 1 illegal: No proof kernel
rrr1n2r/kp5P/1N1PpQn1/q4p1P/1P5N/1N2P2R/1KN3rB/2b3nb w - - 0 1 illegal: No proof kernel
Kb2B1Q1/2np1rP1/p1k2n2/3bpqRn/1q2P2P/P2r1rn1/6P1/BQ2B1R1 w - - 0 1 illegal: No proof kernel
k7/2qNb3/B1nbq3/pPq3B1/Q2p1p1K/P2Pr2n/nN2PPQ1/1rn1B3 w - - 1 3 legal: proof: h4 f5 b4 h5 Na3 b5 g4 e5 c4 bxc4 d3 f4 Kd2 e4 Kc2 e3 Rh2 Bb7 Rg2 Be4 Rg3 Bf5 gxf5 Rh6 Rg4 hxg4 Rb1 Rh8 Rb2 Qe7 Kb1 Qd8 Rd2 exd2 Kb2 Qc8 Kc2 Qd8 f6 a5 h5 c5 h6 d5 b5 Kd7 f7 Kc8 h7 Kb7 Bh3 g5 Bf1 c3 Bb2 g3 Bh3 g4 Qc1 d1Q+ Kb1 g2 Nc2 d4 Ne1 g3 Ba3 c4 Nc2 Na6 Nf3 g1Q Ne3 g2 Ne5 Qc7 Bb4 Re8 Bc8+ Ka8 Nd7 c2+ Kb2 c3+ Kb3 Qh1 Qa3 g1N Qa4 Qh5 Nc4 Re3 Nb2 Ne7 a3 Nc6 Kc4 c1B Be7 Nab4 Ba6 c2 Bh4 Qg4 Bg5 Na2 Kd5 Bc5 f8B Bd2 Bd6 Qc1 Bde7 Bdb4 Bd6 Rh3 Ke4 Rh1 Bde7 Re8 h8Q Qh3 Qh6 Qg4 Qh2 Nh3 Qg2 Qf5+ Kf3 Qg6 Bef6 Re3+ Kg4 Re1 Bd8 Qe6+ Kh5 Bf8 Bde7 Rg1 Bc5 Be7 Kh4 Rh1 Ba7 Bbd6 Bb6 Qe1 Bc5 Qc3 Bb4 Qc5 Bd2 Rb1 Be1 c1N
4b1k1/2B1p3/1Q1brn2/rN5q/pbK4p/P1qPPQNP/1bn1P1Bp/2N5 w - - 0 3 legal: proof: c4 b5 b4 bxc4 Na3 d5 Rb1 d4 Rb2 Nh6 Rc2 Ng8 Rc3 dxc3 Nc2 Qd4 Na3 Qe3 fxe3 Be6 Bb2 Bh3 Bc1 Bc8 h3 g5 Rh2 g4 Nb5 g3 Na3 gxh2 g3 Nf6 g4 Ng8 g5 c5 d3 f5 b5 Kf7 b6 a5 b7 h5 Bg2 h4 Nb1 f4 a3 c2 Kd2 a4 Kc3 f3 Bb2 c1B Qb3 f2 Qb5 f1Q Qa6 Bd2+ Kc2 c3 Qc6 c4 Bc1 Bh6 Bf3 Bd7 Bg2 Be8 Bb2 Na6 b8Q Nf6 g6+ Kg8 g7 Bf4 Nf3 Bd6 Qbb6 Rh6 Nd4 Qf3 Nb5 Qh5 Qf3 Be1 Nd2 Nb4+ Kc1 c2 Be5 Ra7 Kb2 c1B+ Kc3 Ra5 Kd4 c3 Kc4 c2 Nb3 Bb2 Nc1 Nc6 Bg3 Beb4 Bf4 Nd4 Bg3 Kf7 g8N Rg6 Nh6+ Kf8 Nf5 Kg8 Na2 Rh6 Be5 Rg6 Ng3 c1Q+ Nbc3 Nc2 Nb5 Nh7 Bf4 Re6 Be5 Qe1 Nc1 Nf6 Bf4 Bdc5 Bb8 Bd6 Bc7 Qc3+
1bNn2q1/p1NP2P1/nR1KNQ2/2Qp2pb/krP1p2p/7r/P2qPR2/3r4 w - - 0 1 illegal: No proof kernel
5Kb1/p1Np4/nQ2P1pr/Pp1PP3/1Rn4Q/1NN4p/bPRn4/2rn1q1k w - - 1 3 illegal: No proof kernel
K2bbk1r/1n3P1q/R1BbR3/NPN5/4P2P/1P2b1q1/2rr2N1/2nN2qq w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 g4 hxg4 d4 f6 d6 f5 e4 f4 Be3 fxe3 d5 Nh6 Qd3 Ng8 Qd4 exd4 Ke2 g5 Kd3 a5 Kc4 c5 f4 e2 h4 e1Q f5 d3 f6 d2 b3 d1Q Na3 a4 Bg2 g3 Nh3 g4 Ra2 Bd7 Rf1 Nh6 Rh1 Nf7 Rh2 Qc7 Nf2 Nc6 Rd2 Nfe5+ Kc3 c4 Bf1 g2 Nc2 g1B Bh3 g3 Ne3 a3 Ng2 Nd8 Kb4 c3 Rd3 Qa1 Nd1 a2 Rf3 Bc6 Bd7+ Kf7 Rf2 c2+ Kc5 c1B Rh1 Rc8 Be8+ Kg8 Bd7 Bg5 f7+ Kg7 Rh2 Bfe7 Rh1 Kf8 Be8 Qd7 Kb6 Nb7 Ka7 Qf5 d7 Nd3 d8N Nc1 d6 Qh7 d7 Bd6 Rh2 Rc7 Ka8 Qac3 Rf3 B1e3 Rf6 Qh1 Re6 a1R+ Kb8 Bd5 Nc6 Ra2 d8N Rd2 Na5 Bc6 Ka8 Bd7 Ndc6 Bf6 Ne5 Bd8 Nd3 Rc4 Nc5 Qd3 Nf4 Rcc2 Rf2 Qc3 Ng2 Qcg7 Rff6 Qg4 Nf4 g2 Rh6 g1Q Ng2 Qg3 Rhf6 Be5 Ra6 Bd6 Re6 Bc8 Bc6 Bd7 Rg6 Be8 Rh6 Qg1h2 Re6 Q2g1
6R1/2Np1P1b/PR1P1r2/1p5k/1r1P1nr1/Pr2QRq1/r2N3K/1r1nn1R1 w - - 0 1 illegal: No possible last move
8/2P5/pnR2Pb1/1B1qK1pQ/P2Rbr1b/RbB1k1P1/1P2q2r/r1rR4 w - - 1 2 legal: proof: d4 c5 h4 g5 c4 Nc6 h5 Ne5 dxc5 b5 Qd3 bxc4 Qd1 Ng6 hxg6 e6 e4 e5 Nf3 f6 Nd4 exd4 e5 f5 Nc3 Ke7 Ne4 fxe4 Bd2 Ke8 Bf4 Qf6 Bc1 Qd8 Ke2 Ke7 f4 Ke6 a4 Kd5 f5 h5 e6 d3+ Ke3 h4 e7 c3 e8R h3 c6 d2 c7 a6 g7 c2 Qh5 d1Q Qh6 h2 Qh3 Bb4 Qh6 Ne7 g8R Be1 Ref8 Bh4 Bd2 c1R Rg1 h1B Ra2 Bb7 Bb4 Nc8 Bc3 Nb6 Bg7 Qf3+ Kd2 e3+ Kd3 e2+ Kd2 Ke4 Rf7 e1R Qf6 d5 Rd7 d4 Qf7 d3 Ra3 Ra1 Kc3 d2+ Rd3 d1B Qh5 Qe2 Rd4+ Ke3 Re8+ Be4 Re6 Rb8 Rc6 Qd5 Be5 Bb3 f6 Bg6 g3 Bhe4 Rh1 Rhe8 Rg1 Qd1 Bd3 Qe2 Bb5 Reb1 Rgd1 Rbd8 Bd6 Re5 Bb4 Rf5 Ba5 Rf4 Kb4 Qf7 Kc5 Rc1+ Bc3 Re8 Kd6 Qg8 Rb4 Rd8+ Ke5 Rd2 Rd4 Rdc2 Kd6 Qd5+ Ke7 Qg2 Ba5 Qg8 Kd6 Qf1 Ke5 Rh2 Bb4 Qe2 Bc3 Qd5+
KQ4r1/1N3p2/P2B1PPN/p3P2q/2k1n3/P2b1b1q/1rB1p1q1/b3qBB1 w - - 0 2 legal: proof: e4 a5 c4 g5 h4 d5 hxg5 b5 b4 bxc4 b5 Qd7 e5 Na6 bxa6 Qd8 d4 e6 g4 Nf6 a3 Ra7 Ra2 Ng8 Re2 Ra8 Re4 Ke7 Rh3 Ke8 Rd3 dxe4 d5 Nh6 d6 Ng8 Rd5 exd5 Ke2 Kd7 Ke3 Kc6 Kd4 Kb5 f4 h5 f5 c5+ Kc3 h4 g6 e3 g5 d4+ Kc2 h3 g7 h2 d7 h1Q Bd2 d3+ Kc3 Qg2 Qe1 Nf6 g8B Rh2 Bc1 d2 Nh3 d1B Nf2 Bf3 Nd2 Rb8 Nb3 Ne4+ Kb2 e2 f6 Rh8 Bh7 Rg8 Be3 c3+ Ka2 c2 Ng4 c1Q Nh6 c4 Nc5 c3 Kb3 c2 Bg1 Bd6 Nb7 Bc5 Qd1 Ba7 Qd6 Bd4 Bg6 Qb6 d8B Ba1 Bc7 Bf5 Qf8 Qd2 Bd6 c1Q Qd8 Qde1 Qc8 Ra8 Qb8 Qc8 Bh7 Qbf2 Bg6 Qh4 Bh7 Kc6 Ka4 Kd5 Kb5 Qh5 Kb6 Kc4 Bg6 Nc3 Bh7 Bd3 Be4 Qch3 g6 Bb1 Bc2 Ne4 Qa7 Rac8 Qb8 Rc5 Ka7 Rb5 Ka8 Rb2 Bd1 Bd3 Ba4 Rb5 Bc2 Rb2
K3Nkb1/bn5R/b2R1B2/3p1P1P/pR1nr1Rp/P1Nr1n2/2P1pP1n/8 w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 b4 cxb4 h3 Qc7 h4 Qc5 dxc5 Bg7 Qd5 Bh6 Qd1 Bf8 g4 Nc6 h5 Bg7 Qd4 Be5 Bc4 Kf8 Bf7 Bg7 Bg6 Nb8 Qf4 Bh6 Qh2 Bg7 Qh4 gxh4 g5 Bh6 Bf7 Bg7 g6 Bh6 Bb3 Ke8 Bf7+ Kd8 Be8 Bf8 g7 Nc6 Bf7 Nb8 Bg6 hxg6 Ba3 Ke8 Bb2 Rh6 Bc1 Rh8 Kd2 e5 Ke3 b5 Ke4 a5 Kd5 a4 c6 e4 a3 g5 c7 b3 Rh3 e3 Nf3 g4 Bd2 g3 Ne1 b2 Bc1 e2 Nf3 b4 Ng1 b3 Nc3 b1B Bf4 g2 Bh6 b2 Ra2 Ba6 Rh2 Bc5 Rh3 Ba7 Rf3 Nc6 c8R+ Nd8 Nh3 g1N Rd3 Nf3 Ng5 Nh2 Rc7 Nb7 Nge4 Rd8 Bg5 d6 Ra1 Ba2+ Kc6 b1N Bf6 Nd2 Rb1 Ndf3 Rb4 Rh6 Rd7 Ne7+ Kc7 Kf7 g8R Rh8 Rg6 Rhe8 Rg4 Kf8 Rdd4 Nc6 Rh7 Re5 Rd3 Ncd4 Rd1 Rd7+ Kc8 Bb6 Kb8 Ba7+ Ka8 Bd5 Ng5 Bg8 Ne6+ Ke8 Ng7+ Kf8 Ne8 Re3 Rdg1 d5 Rgb1 Rd3 Rb6 Re7 R1b4 Ree3 Rd6 Re4
B1n2nBR/1BR1P2p/3Pb2r/2bq1N1K/4n3/2pp1nPP/1r1P1B1n/2rk4 w - - 0 1 illegal: No proof kernel
nN2n3/3P2r1/1p1N1NP1/Rnpb1p1Q/2P2Pp1/pK1nqrP1/N4kn1/R7 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 g5 a5 b5 Rh3 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Ba6 Ke2 Bb7 Ke1 Bc8 b4 Kd7 Bb2 Na6 Bd4 Rb8 Bb6 Ke8 Bc4 Nc5 Bb3 Na6 Ba4 bxa4 b5 Ra8 Bd4 Be6 b6 Bc8 b7 Nb8 Bb6 axb6 d4 Kd7 Kd2 Kd6 Kc3 Kd5 f4 f5 a6 h5 g6 c5 a7 e5 g3 h4 Qe1 e3 Rh2 Ke4 d5 h3 d6 e2 d7 Ke3 Rf2 e4 Rh2 Qe7 Ra2 Rh7 Rf2 h2 Na3 h1N Rg2 Nf2 Qa1 e1N Qb1 Nf6 Ra1 Nf3 Qd1 Ne8 Nb1 Na6 b8N Rg7 Nd2 Bb7 Ne2 Nd4 Nc1 Nac7 Qh1 Nd3 Qh5 Bd5 Na2 Qe5 Rgg1 Kf2 Nc4 e3 Nd6 e2 Rgb1 e1N Rb5 Ng2 Ra5 Be4 Kc4 Ndb5 c3 a3 Kb3 Bd5+ c4 Qe7 Nc6 Rd8 a8N Qe3 Nb8 Nf6 Ra6 Re8 Ra5 Re4 Qh3 Nfe8 Qh5 Na6 Nc7 Ree7 Ne6 Nac7 Ng5 Na8 Nh7 Qd4 Rc1 Re3 Nf6 Rf3 Ra1 Qe3
3r2RB/B3p3/p1P1Pnpb/5b2/q1PpBpp1/1K1P1r2/Pn1p1B2/1k4NN w - - 0 3 illegal: No proof kernel
4n3/K4RP1/Rq3rP1/P2P2R1/2R2P1Q/r2qp3/1Rrbn1rN/5qbk w - - 0 1 legal: proof: d4 a5 c4 e5 e4 d5 b4 f5 bxa5 Ne7 Bb2 Ra7 cxd5 Ng8 d6 Ra6 d5 Ra8 Bd4 exd4 f4 g6 e5 Ra6 Nd2 Ra8 Ne4 Be6 Be2 fxe4 Bf3 g5 h3 g4 g3 gxf3 g4 Ne7 g5 Bg4 hxg4 Ng8 Kd2 Kf7 a4 Kg6 e6 h5 e7 c5 e8R b5 a6 f2 d7 f1Q a7 c4 Qb1 h4 Qe1 h3 Ra2 h2 Rb2 d3 Ke3 d2 Kd4 d1R+ Rd2 c3 Re5 b4 Rf5 c2 Rd3 c1B Qe3 b3 Nf3 b2 Ne1 b1Q Rg1 h1R Qe2 R8h6 Kc4 Bc5 Nf3 Nc6 Rc3 Nd4 Rf7 Bd2 Nh2 Qdb6 d8R Rc1 Rb8 Rc2 a5 Nf6 Qd3 Ne2 Qh3 Ne8 Qh4 Qbd1 Rg2 Bg1 Rbb7 Rd8 a8R e3 Ra6 Rd6 Rb8 Rf6 Rbb7 Rh8 Rg3 Rg8 Rg2 Qd4+ Kb5 Qd3+ Rc4 Qb1+ Kc5 Rg7 Nf3 Rh2 Rb2 Rc3 Rg3 Rg2 Nh2 Ra3 Re6 Rh7 Kb6 Rh8 Ka7 Rf8 Ra6 Rc6 Rf5 Rff6 Re4 Rc2 Rc4 Kf7 g6+ Ke7 g7 Kf7 g5 Kg6 Rb8 Qb4 Re5 Qd6 Re6 Kf5 g6 Qc5+ Reb6 Qcd4 Rb7 Ke4 Rc5 Qb4 Rg5 Qbb5 Rf7 Qc6 Ng4 Kf3 Rb2 Qe6 Rc4 Qb6+ Ka8 Rg3 Nh2+ Kg2 Qh7 Kh1 Qh4 Qbb3 Ka7 Rg2 Rf5 Qb4 Rg5 Qb6+
3KQ1bQ/P1QPn3/nP2p1Pb/4PB2/Qqq2r2/3Nbn2/3q2b1/r4k1N w - - 0 1 legal: proof: f4 h5 c4 g5 fxg5 d5 cxd5 Be6 g6 Bc8 a4 a5 b4 Bh6 g4 Kf8 g5 Ke8 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 h4 b6 Ba3 Ba6 b5 Bb7 Bb4 axb4 a5 Bc8 a6 Rh5 Rh3 Rh8 Ra3 b3 Ra5 bxa5 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 g7 f5 b6 g3 h5 b2 d6 a4 d5 g2 g6 a3 d7 f4 Ke6 f3 d6 a2 h6 a1B h7 f2 Nf3 g1N Nd4 Nf3 Nc3 b1Q Ne4 Qb4 Nc6 Bd4 Na7 Be3 Bh3 f1B Bg4 Bg2 Qa4 Bb7 Kf7 Bd5+ Be6 Kd4 Nf2 c4 Nh1 c3 Nc6+ Ke4 Ne5 c2 Nd3 c1Q a7 Na6 Qa2 Qcc4 Qa3 Kd4 Qa4 Kc3 Ndf2 Kd2 Nd3 Qdc8 d8Q Qd7 Qc7 Rd8 Nc5 Ke1 Nd3+ Kf1 Nf4 Nf6 g8Q Bh6 Qe8 Ng8 Nd3 Rc8 Qcc6 Qd8 Qcd7 Rc5 Qc7 Ra5 d7 Qa8 Qc2 Ra1 Qa4 Qd2 Qed8 Qac6 Ke8 Q6c5 Bf5 Q5b4 Qa8 Bf7+ Kd8 e6 Qac8 Be8 Q8b8 Ne7 Qa8 Rf8 h8Q Rf6 Qab8 Bf7 Qa8 Bd4 e4 Bde3 Qe8 Bg8 e5 Bf2 Qe4 Bfe3 Qh4 Bg7 Qh8 Bgh6 Bh3 Rf4 Bg4 Ke2 Bf5 Kf1
r2qN1b1/nNQb3P/1p1K4/1PQn3N/pP1b3P/3rpk2/5N1P/q3qR2 w - - 0 1 illegal: Other
1nKQ4/3B1P1k/3nb3/B1P2r1P/P5p1/1Qpq1pbn/1RP1n1r1/2Qn2Q1 w - - 0 1 illegal: No proof kernel
q1N1n1Q1/1r4bP/rB2nbN1/1bq2P1k/2P1nP1P/1P2K3/2q2RB1/6qq w - - 0 1 legal: proof: d4 f5 e4 h5 exf5 c5 g4 cxd4 gxh5 b5 a3 b4 Ra2 bxa3 b3 Na6 Rb2 axb2 Qe2 Nb8 Qg4 Ba6 Qd1 Bc8 Ke2 Kf7 h4 d5 f3 g5 h6 a5 h7 e5 Bh3 g4 Qd3 g3 Qa6 a4 Qc4 g2 Be3 e4 Qb4 a3 Qa5 a2 Qa3 a1B Qa6 d3+ Kf2 d4 Qb7+ Bd7 Qc7 d2 Nc3 b1Q Qa5 d1Q Qa7 d3 Na2 d2 Bf4 e3+ Kg3 e2 Kf2 Qbc1 Bd6 Bf6 Be7 Na6 Ba3 Nc7 Bb4 Ne6 Be7 B8g7 Nb4 Bb5 Qb8 Ra6 Ke3 e1Q+ Ne2 Qd5 Rf1 g1Q+ Rf2 Qa8 Qg3 Qh1 Bd8 Qeg1 Nc6 Qa3 Ne7 Qc5+ Nd4 Qb1 Ng6 d1N+ Kd2 Qa2 Bg2 Nc3 Ke3 Ne4 Qg4 Nh6 Ba5 Rb8 Bb6 Ng8 c4 Qc2 f4 Rb7 Bf3 Bh8 Bg2 Kg7 Qg3 Kh6 Qg4 Bhg7 Qg3 Qc7 Nc6 Kh5 Nce7 Qc5+ Kf3 Bc3 Nc8 Ngf6 Qg4+ Kh6 Qg3 Ne8 Qg4 Bcf6 Qg3 Qc7 Ke3 Kh5 Nh8 Bf8 Qg8 B8g7 Ng6 Qc5+
3nQKbq/n1bN4/P2P1r1k/r2P3b/4b1Rp/1r1PP2q/1n5P/3BR2B w - - 0 1 illegal: Other
2R1nB2/1QqP1PbR/qrbb4/Pqb2n2/B2p1K2/3P4/rP2k2P/rb2N3 w - - 0 1 illegal: No possible last move, all moves rejected
4B1N1/3b4/2b1B1qp/k1NrrPpP/P2P1b2/2n3Pr/1nP2KQb/Rq5b w - - 1 2 legal: proof: e4 a5 b4 f5 bxa5 fxe4 a4 d5 d3 c5 Be3 d4 Ra3 dxe3 Rb3 Nf6 Rb2 Ng8 Rb4 cxb4 f4 Kd7 h4 Kc6 a6 Kb6 a7 g5 f5 e5 d4 b3 Rh3 e2 Qc1 b2 Rb3+ Ka5 Rb4 b5 Qf4 Qb6 Qe3 Nd7 Qf4 Qg6 Qd2 Nc5 Nc3 b1B Nd5 Ba2 Qf4 Ne7 Rb2 b4 Qe3 b3 Nh3 Bd7 Nb4 Nd3+ Kd2 e1B+ Ke2 Bd2 Rb1 b2 Ng1 Rd8 a8B Bd5 Qf3 e3 Na6 e4 Nh3 B5c6 Nb4 Nd5 Rd1 b1B Re1 Bd6 Na6 Bh2 g3 Ba2 Rc1 Nb2 Bg2 Nc3+ Kf1 e2+ Kf2 e1R Nf4 Re3 Ra1 Bad5 Nh5 Re1 Bh1 Bf4 Qg2 Re3 Nc5 Re2+ Kf1 e3 Nf6 Bf3 Ng8 Bfe4 Qf3 Re1+ Kg2 e2 Kf2 Bed5 Qd3 Be4 Bf3 Bed5 Bh5 Bh1 Qd2 h6 Ne7 Rhe8 Ng8 Re5 Bb7 Rc1 Ba6 Rb1 Bc4 Rg1 Be6 Rc1 Qd3 Rg1 Qe4 Rg2+ Kf3 e1Q Qd5 Qb1 Qe4 Rg1+ Kf2 Bc8 Qg2 Rdd5 Be2 Re1 h5 B8d7 Bb5 R1e4 Be2 Bc1 Bc4 Rh4 Bf7 Rh3 Be8 Bf4 Ba2 Rd6 Be6 Rdd5
6Nn/2bn3p/2rRp3/1qrn1Pnb/1PPrB1K1/1PB2P2/4PQNk/4nq2 w - - 0 1 illegal: Other
2nR2B1/3Nn3/5p2/1P1bP1rq/8/B1bb1P1P/3PPpkq/b1QnKNrr w - - 0 1 illegal: Other
2n1qb2/2nbn2r/pP2p2K/1r1B1P2/2R2N1k/3PPrr1/3P2RP/NqQ1b3 w - - 0 1 legal: proof: g4 d5 a4 h5 b3 hxg4 a5 f5 a6 f4 Ba3 d4 Bc5 d3 cxd3 bxa6 Bd4 a5 Bf6 a4 Bh4 Nd7 Bg3 fxg3 Qc1 Nb8 Qc2 Rh6 Qd1 Rh8 f4 Kf7 b4 Kg6 f5+ Kg5 e3 c5 Ke2 c4 b5 a3 b6 e6 Nh3+ Kh4 Ng5 g2 Nh7 g1R Ra2 g5 Rc2 g3 Kf3 a2 Rc3 a1N Be2 g4+ Kf4 g2 Rc2 g3 Nc3 Ne7 Qf1 Nb3 Qb1 Nc5 Bf3 Nb7 Qf1 Bd7 Bh5 Na6 Qe1 Nd6 Nb1 c3 Bg6 Ndc8 Rb2 c2 Rb4 c1Q Qd1 Qe8 Nf6 Nc7 Na3 Qb1 Qc1 a6 Bf7 Ra7 Nh5 Re1 Nc2 g1R Rc4 g2 Na1 Rg8 Rc3 Rg3 Rc4 Re2 Bg6 Rd1 Rf1 g1B Rf2 Ree1 Rg2 Bf2 Bf7 Rf1 Bg6 Qd8 Be8 Be1+ Ke4 Rff3 Nf4 Rb7 Bh5 Qe8 Ke5 Rf2 Bf3 Ra7 Bd5 Rff3 Qa3 Rc1 Kf6 Rc3 Qc1 Rb3 Ra4 Rb5 Rc4 Ng6 Rc5 Bd6 Kg7 Bf8+ Kh7 Nge7 Rc4 Ng6 Ba8 Nd5 Rc3 Bc6+ Kg8 Rd7 Rc2 Nc7 Rc4 Re7 Bb7 Bd7 Ba8 Rf7 Bd5 Nge7+ Kh8 Rf6 Kh7 Rfg6 Bb7 R6g5 Bd5 Rg7+ Kh6 Rh7+
1q2RnNK/P2k2bP/q1p3p1/1bqNB1q1/5B1n/b2P2P1/1QPrP3/3b2r1 w - - 0 2 illegal: No proof kernel
2r1nrqk/4qPp1/Rp3BP1/1p1P4/P1P1Qb2/3B1rPb/N4bq1/2K2Rn1 w - - 0 1 illegal: No proof kernel
2R5/ppPRPk1q/1BP1b1q1/1P4b1/1n1p4/Q3nr2/2PnK1P1/1rrbN2N w - - 0 1 illegal: Other
NNn1R2b/pr1P1P1p/P1b3r1/3P1b1b/nqbpB1P1/r2P1Q2/4K2B/1k6 w - - 1 2 illegal: Other
bN5r/B5kP/n4n2/Pp1r2PR/1P1p2rq/bqP4B/bpQ1rRP1/5K2 w - - 0 1 illegal: No proof kernel
6nR/Kpb2pqr/n3PP1p/3N2nP/R3Bb2/4pP1P/B3Pq2/kb3Q1b w - - 2 3 illegal: Other
q1b2qNK/Nq5n/2Pk1b2/B6r/Ppp1r1QP/2P2p1B/qP2pP2/3b3R w - - 0 3 illegal: No proof kernel
1B2k1Bb/P4p2/2R4p/2r1pqnn/PN2P3/1b2N2n/2bpnPPP/1K3Qq1 w - - 1 3 illegal: No proof kernel
1R4K1/3B2pb/3q2pb/R5p1/pqP3P1/k1p1N1Q1/PnP1P1Pn/r1q1Nn2 w - - 2 3 illegal: Other
2NKnq2/2p4P/p1RP1B1P/P3p2n/3p2b1/1pbrR3/bNPP1Qp1/2k2n2 w - - 0 3 illegal: Other
1n6/3n1N1b/1bqQRr2/pP1q1qp1/K2P1pPR/B4Pbb/P1Pn3r/N6k w - - 0 1 illegal: No proof kernel
8/q1pqr1Pb/n5kp/PnPb2PR/1n1N3b/B1rb2p1/QRN1q1PP/1K6 w - - 0 1 illegal: Other
3QnN1b/pp1p1r2/P3p2K/PP1P4/bBb1Ppb1/pk3PN1/r5B1/2q2nR1 w - - 1 10 illegal: Other
nqN5/1b2P2p/4Pb2/b2NBbqP/PpK1P1b1/R6q/2k1BRPb/4n3 w - - 0 1 illegal: No proof kernel
r1R2RK1/bqr2r2/R2pn3/P2qkP2/1Q2Pr1n/1P4Np/nP3B1P/3n4 w - - 0 1 illegal: No proof kernel
2B2Qrb/2pp3k/P1n3N1/2b2n1n/1PP1n2p/pPR5/K1P1nR1P/1q1R4 w - - 0 2 illegal: Other
1nN5/rqqpQ1P1/rq4Nr/3kB1Pn/pPN2bP1/P1KP4/R1b2bn1/8 w - - 0 1 illegal: Other
2Nr2R1/2bp4/2p1q3/1n1Bnq2/b1b3PN/rrPpPP2/2PP3k/KQN1q3 w - - 0 1 illegal: No possible last move
8/pb1b2N1/B1knP2R/r6Q/N6n/1r2PppP/PP1q1bPn/K1N2r1q w - - 0 1 illegal: No proof kernel
b1Nb3B/1kqr2pp/2pp1R2/nPP2K1P/2bbn1Q1/RP2P1P1/n7/2R4r w - - 0 3 illegal: Other
1Qr2kn1/5N2/b1qp2pN/2P3Pn/1PQbRPPP/2qr1B2/K4b1n/3q4 w - - 0 1 illegal: No proof kernel
2N2Kb1/1P2BR1n/2rQ1rP1/2RpPP2/P1rrP1k1/b3p3/qb2q3/n1Q5 w - - 0 1 legal: proof: d4 b5 h4 g5 c4 gxh4 cxb5 e5 dxe5 a6 b6 Bg7 b7 Bf8 b4 f5 b5 Ne7 b6 Ng8 Nc3 f4 e4 Bd6 Nd5 Bf8 Ne3 fxe3 Bb5 axb5 Ke2 Kf7 Kf3 Kg6 Kg4 h5+ Kf4 c5 a4 b4 g4 h3 f3 c4 g5 b3 Qd5 c3 Bd2 h2 Nh3 c2 Rac1 h4 Rcg1 Kh5 Kf5 c1B f4 b2 g6 b1Q Qc5 Qa2 Qc7 Bfa3 Re1 Bcb2 Qc2 Na6 b8Q Nb4 b7 Ra6 Ng5 h3 Qd3 Rc6 Reg1 Nf6 Qa6 Nc2 Nh7 Na1 Qf1 Rf8 Ng5 Nh7+ Nf7 Ng5 Qc7 d5+ Qd7 Qb6 Qc1 Qb5 Rf1 Qe2 Bb4 Kh4 Rhg1 h1R Be7 h2 Rg2 Rc4 Kf6 Rc6+ Qd6 Be6 Rff2 Rd1 Kg7 h1R Rh2+ Kg3 f5 Kg4 Rh7 Rd4 Rfh2 Qa6 Rc2 Qe2 Rc5 Rh2 Nd8 Rf6 Nf7 Rh1 Kf8 Rc4 Rg7 Rd1 Qc7 Bd7 Qb8 Rdd4 Rh7 Rfe6 Nd6 Be8 Qd8 Bf7 Nc8 Bg8 Qd6 Rf6+ Rf7 Nh7+
5BKn/4P2Q/2bN1bp1/1R1p1r2/bbqPq3/1P1N1PP1/k1P1rn2/3bbQ2 w - - 0 1 illegal: No proof kernel
q4q2/1BpNn1q1/b1KQr1pb/8/3RPqnk/p3P2P/P3QPP1/R2r1r2 w - - 0 1 illegal: No proof kernel
1n3Q2/Qpn2NP1/4p2P/2q2Ppp/R1prPbPk/K2P2r1/b2n3q/6BB w - - 0 1 illegal: Other
2R5/1qPPB1bR/2B3kP/PrP1nr2/2nRqn1P/2q1b3/1b3K2/bb3Q2 w - - 0 1 legal: proof: g4 f5 b4 h5 gxh5 d5 c4 a5 e4 fxe4 b5 c6 Na3 Ra7 Nc2 Ra6 Nb4 axb4 Nf3 Ra8 Ne5 Nh6 bxc6 Ng8 c5 Bf5 Nc4 dxc4 Qa4 Be6 Qd1 Bc8 a4 Kf7 h4 e5 f4 b5 d4 g5 f5 c3 h6 b3 c7 e3 a5 b2 f6 b1N d5 e4 d6 b4 Rh3 c2 Bd2 c1B Qc2 e2 Rha3 g4 R3a2 g3 Qa4 g2 Bc3 g1B Qd1 b3 Ra4 b2 Bb4 Bf5 d7 Kg6 f7 Nf6 R1a3 Nd5 Rc3 Bg7 f8R Na3 Rf3 b1Q Qd4 Nf4 Qd1 Qe8 Rb3 Nc4 Qd5 Nc6 Bg2 Bge3 Qd2 N6e5 Ra1 Bb2+ Qd1 Rb8 Ra2 Rb5 Rf7 Rf8 Bd2 Qa8 Rd3 Qb7 Rd4 Qc2 Re7 Qc3 Ra1 Be6 Re8 Rf5 Rc8 Bg8 Qb1 Bh7 Qd3 Bg1 Qf3 Be3 Qf1 Bg1 Re8 Rg5 Rc1 Kf6 Rd3 Ng6 Rd5 Bf8 Bf3 Ne6 Re5 Rh5 Rg5 Nge5 Rc8 Bd4 Rg8 Bg7 Rd1 Bf5 Qh3 Kg6 Bg4 Rg5 Qe3 Rh5 Kf2 e1Q+ Kg2 Rg5 Qf3 Rh5 Bg5 Nf4+ Kh2 Bf2 Rh8 Ba1 Qd3 e3 Be7 e2 Rh7 Bd4 Qf3 Bb1 Qf1 Bf2 Bf3 Rf5 Bc6 Bb2 Qh3 Ba1 Rd5 Bd4 Qd3 Qh1+ Kg3 Be3 Qd1 Qe4 Rd4 e1B+ Kh2 Bc1 Kg1 Bed2 Kf2 Bcb2 Qf1 Be3+
b4B2/3P2P1/3p1rBK/bP4P1/Pnr2q1B/1Pbrnk2/R3q2r/2RQ1b2 w - - 0 1 illegal: No proof kernel
b3b3/2B1PB1r/RRp4R/1n1r1n2/1nP3q1/b3PPp1/1PPN4/3kbK1q w - - 0 1 illegal: Other
kr6/p1B1KPrB/5rP1/NR2b2N/PP2bbq1/pPn2Bp1/1P3n1q/8 w - - 0 1 illegal: Other
8/p2b1P1K/k2P3p/1qnbP1bN/1q1n1R2/P1pNPR1r/PQ1r4/R4b2 w - - 0 1 illegal: Other
4K3/1BPR2b1/1B1NPpq1/rb5p/2n2P2/2bPPnBP/1Nk2r2/r1r1b1r1 w - - 0 1 illegal: Other
8/B2rP1rP/r4qp1/2nnNq1P/PKp1k2p/1BP1q3/N1N1b2P/Q1b1r3 w - - 0 1 illegal: Other
1n2B3/2rpK1P1/q2Pq3/p1B1RR2/2p1q3/2np3r/Pb2kPPP/3r1NRb w - - 0 1 illegal: Other
6q1/3Q1Q2/2r1qqNn/2RpP2r/1N2q1q1/P1PP1pb1/pP2P1K1/2kn3R w - - 0 1 illegal: No possible last move
q5KQ/n2Pr2n/p5Nb/1B3P2/r1n1b1QP/r4p2/P1Pk1PQN/q2b4 w - - 1 2 legal: proof: e4 f5 b4 d5 Na3 c5 bxc5 f4 Rb1 d4 Rb3 Qd5 Re3 dxe3 h4 g5 Rh3 Qf5 exf5 g4 g3 gxh3 g4 Bg7 Bg2 Bh6 Bf1 Bf8 g5 h6 g6 Bd7 Bb2 Be6 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Kd3 Kc6 Ke4 e5 d4 b5 g7 e2 Nf3 e1Q+ Qe2 h2 Nb1 h1B Nc3 g4 Bh3 b4 Qe3 g3 Nb1 Kb5 Kd5 e4 c6 b3 c7 Kb4 Qe2 g2 Qa6 g1Q Qd3 b2 Qe3 Bb7+ Ke6 Qg2 Kf7 Nf6 g8Q Nc6 c8Q Nh7 d5 Bh6 Na3 b1N d6 Nd2 d7 Nc4 Qge8 Qa1 Qc1 Kc3 Qf8 e3 Ng1 e2 Qd1 e1R Qg4 Kd2 Qfg7 Qe4 Qcf8 Bf3 Bf1 Bd1 Qg2 Re3 Q7g4 Qf3 Qfg7 Rhe8 Qh8 R8e4 Bd3 a6 Bf1 Rae8 Be2 R8e7+ Kg8 Na7 Bd3 Na5 Bb5 Ra4 Nc4+ Ke1 Qd4 Be4 Ne5 Nc4 Ng6 Rea3 Qh8 Kd2 Qg7 Qh3 Qh8 Qh1 Nf3+ Ke2 Nh2+ Kd2 Qf1 Qg2 Qg1 f3 Qh1 Qg3 Qg2 Qb8+ Nf8 Qb7 Ng6 Qa8+
k1r1r2b/4BB2/nn1P2P1/2Q3P1/KBq1pN2/2PPPn2/5B1p/4n1qr w - - 0 1 illegal: No proof kernel
2rnB3/1P5b/R1p1p1bP/Pp2P1Pk/1Pp1rRN1/5n1K/2P2b2/1Qqq2n1 w - - 1 3 illegal: Other
1NkNb1K1/2P2PBB/4p3/Pp2Pr1b/1PR1P1Pp/2rrq1n1/1n4p1/7b w - - 0 1 legal: proof: b4 f5 g4 fxg4 e3 a5 h3 g3 Qg4 a4 Qe6 Nf6 Qc4 Ng8 Qb3 axb3 a4 g5 Ba6 c5 Bf1 g4 hxg4 c4 Ra2 Bh6 e4 c3 Rb2 Be3 dxe3 cxb2 Kd2 b5 Kc3 d5 Kd4 Kd7 Ke5 h5 f4 h4 c4 d4 a5 e6 c5 d3 f5 d2 f6 d1R f7 Rd3 Be2 Qb6 Bd2 Ne7 Kf6 Rh5 Kg7 Nf5+ Kg8 Na6 Nc3 b1B e5 b2 c6+ Kd8 Bf1 Bd7 Na4 Rc8 Nc5 Be8 Nd7 Nc5 Ne2 Na4 Nd4 Ba2 Rh2 b1B Nb8 Nb2 Rf2 Bd5 Rf4 Bh1 Be2 Rc3 Bd3 g2 Re4 Ng3 c7+ Ke7 Rf4 Rd8 Bh7 Rf5 Nbc6+ Kd7 Nb8+ Kc8 Ndc6 Rf6 Rc4 Bg6 e4 Rdd3 Bh6 Qe3 Bg7 Bh5 Nd8 Rf5
1bN1knnr/r6P/2P1bp2/2RPR3/nQbr2P1/q4P2/1P1n1P1P/3K3r w - - 0 1 illegal: Other
rQ2n1q1/1bnB1r2/2R1Q1R1/1QNB1pp1/5B2/1NN4k/7r/1Bbn2KB w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 g4 a5 bxa5 h5 a4 hxg4 axb5 c6 bxc6 Qd7 Kf2 Qd6 Ke1 Qd8 Kf2 Ke7 e4 Kf6 d4 Kg5 h4+ Kh5 e5 g5 d6 f5 a6 f3 c7 Bb7 c8B Qa5 d5 Qc7 d7 Nf6 d8N Qe7 e6 Nbd7 a7 Ba6 d6 Nc5 d7 Bb5 Ra6 Bc6 Qd5 Nb7 Bf4 Na5 Ne2 g3+ Kg1 Kg4 h5 g2 h6 Nb3 h7 Nh5 Bb7 Qc5+ Nd4 Nf6 e7 Qd6 e8B Qb8 N8e6 Nc5 d8Q Bd6 Rh6 Rf8 h8Q Rf7 Bd7 Ne8 Qdf6 Bf8 Rb6 Na6 Rg6 Ba3 Nc5 Bc1 Bd3 Nac7 Ndb3 Qd8 Qg8 Kh3 Nc3 Qc8 Bb1 Qb8 Kf2 g1R Qfe6 Rh1 Qf8 Rh2+ Kg1 Qd8 Qd3 Bd5 Qb5 Be4 Bd5 f2+ Kf1 Qc8 Rc6 Bg2+ Ke2 f1N Kf2 Ne3 Kg1 Rb8 a8B Nd1 Bb7 Ra8 Qfd6 Na6 Qb8 Nac7 Ra6 Bf1 Bh1 Bg2 Bd5 Qd8 Bc4 Bb7 Bcd5 Nf6 Rb6 Qg8 Rc6 Nfe8
6n1/N4N1k/B1B1pQN1/R1N1qQbq/1nR5/1b1qBqpQ/2N2bK1/8 w - - 0 1 legal: proof: c4 a5 e4 b5 a4 d5 cxd5 f5 b4 fxe4 g4 h5 axb5 hxg4 b6 g5 b5 Ra7 bxa7 a4 Qb3 Rh6 Qd1 Ra6 bxa6 Qd6 Qe2 Qd7 Qd1 Qd8 a8B Kf7 f4 Kg6 Kf2 c5 d4 c4 h4 e6 d6 g3+ Kg2 c3 d5 e3 f5+ Kg7 f6+ Kg6 d7 c2 h5+ Kh7 a7 a3 d6 a2 f7 g4 h6 e2 Nd2 e1Q Qf3 Qb6 d8N Qe4 d7 Bb4 f8Q Bc3 Nc6 Qc5 d8N Ba5 Qf5+ Kh8 h7 Ba6 Rh4 Bb6 Nb3 Bd3 Ne2 Na6 Ned4 Nb4 Be3 c1B Nc2 Bc4 Nf7+ Kg7 h8N Qd3 Q3f4 Qb5 Nc5 Bb3 Ng6 Qa5 Rb1 a1Q Q4g5 Qf6 Ra1 Qe5 Bb7 Qa3 a8Q Qa5 Na7 Bd2 Kg1 g2 Bc6 Qa3 Kf2 g3+ Kf3 g1Q Rc4 Qa5 Qgf6+ Kh7 Ra2 Qb5 Ra5 Qh2 Qf8 Qh5+ Kg2 Qa4 Qh3 Qa3 Bf4 Be3 Be2 Bf2 Be3 Bd8 Qff5 Bg5 Qe7 Qc1 Qef6 Qcd2 Rd4 Q3c3 Ba6 Qe2 Rg4 Qcd3 Rc4 Qf3+
1QQ2B2/3q1N2/3RB3/3b1p1p/3r1k1b/Bbn1R1p1/QKR4r/NB3rB1 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 b5 f4 e6 a4 Ba6 axb5 Bc8 f5 exf5 h4 axb4 g4 f6 g5 Na6 Nh3 Nc5 Ng1 Ne4 gxf6 g5 Ra2 g4 Ra1 Ng5 hxg5 Bc5 Qa4 Bd6 Qd1 Bf8 d4 Kf7 Kd2 Kg6 Kc2 c5 e4 h5 e5 c4 f7 g3 b6 b3+ Kb2 Rh6 e6 Ba6 d6 Be7 f8B Nf6 b7 Nd7 b8Q Qe8 d5 Nb6 d7 Qc8 d8R Bc5 e7 Bf2 e8Q+ Kh7 g6+ Kg8 g7 Kh7 d6 Qb7 d7 Nd5 Nd2 Be3 Nh3 Nc3 Ra2 Rd6 Bd3 Kh6 Qc2 Bg5 Re1 Bh4 Ng5 Rd4 Re3 Qa7 Be4 Bb7 Nf7+ Kg6 g8B Bd5 Qb1 Qb7 Qa1 Kf6 Bb1 Ra4 Nh8 Kg5 Be6 Ra7 Qc8 Kf4 Nf7 Ra5 Qe7 Qa7 Qb4 Rc5 Qbb8+ Qc7 Ka3 b2 Nb3 Qd6 Re8 Qc7 d8B Qd6 Bb6 Rc7+ Bc5 Qd7 Qbb7 Rc6 Rd8 Rd6 Ba7 Rd2 Qbb8 Rh2 Be4 b1B Rc2 Ba2 Kb2 Re2 Qb1 Rh2 Na1 Bb3 Qa2 Bb7 Ne5 Rd4 Bb6 Bd5 Nf7+ Qc7 Rd6 Qd7 Rd2 Ne2 Bb1 c3+ Ka3 c2 Kb2 Nc3 Bc5 Qb7 Rg2 Qd7 Ba3 Ne2 Bd2 c1R Be1 Qa4 Bf2 Rf1 Bg1 Nc3 Rc2 Qd7
1q3knQ/2rp1N1n/1bN2BB1/4Q1R1/1N5B/p1q4p/2NKN3/Rn1R2q1 w - - 0 1 illegal: No possible last move
1BQ1Bq2/3b1B2/N6q/R2N2r1/R2q2nk/Q1n1Nq1r/qK2B3/Q1B1r2b w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Ke7 Kd2 f5 Kc3 h5 b4 a5 e4 c5 b6 h4 b5 h3 b7 h2 g6 Kf6 d6 a4 b6 g2 g7 f4 e5+ Kg5 d5 g3 d7 c4 e6 a3 e7 a2 e8B Rh3 d6 Ne7 g8B Ra5 Be2 Kh4 Qe1 f3 Qf1 f2 B2h5 Nd5+ Kb2 Nc3 Na3 Rg5 Bgf7 Nc6 b8N Ne5 b7 Ng4 Ne2 g1R Na6 g2 b8B Qc7 d8Q Bd7 Qd1 f1Q Nc2 Qf3 Nf4 Re1 Qe7 g1Q Ne3 Qgf1 Nfd5 Qc8 Rg1 h1B Qa4 Qc7 Qf6 Qd8 Qa3 Qe7 Rg2 Qf8 Rd2 Qd3 Qe5 Qh7 Rd4 Qhh6 Re4 Bc6 d7 Bb5 d8Q Bd7 Rb1 a1Q+ Kc2 Ne2 Rb5 Qd4 Qc8 c3 Kb3 c2 Ra5 Nc3 Kb2 Qdc5 Rea4 Qc4 Bhg6 Qd4 Bd3 Qdf4 Be2 Qd4 Bd2 c1Q+ Kb3 Qd1+ Kb2 Qc4 Bc1 Qdd3 Qd4 Qde4 Qa7 Qed4 Qa1 Qde4 Qac5 Qed4 Qca3 Qa2+
6R1/1r4bk/nBnn2n1/b3n2q/Q2N3B/qbN1B1r1/3NK3/QR1RN2N w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 Kf7 h4 Kg7 b4 c5 b6 a5 b7 e5 h5 a4 h6+ Kh7 d6 e4 b5 e3 d5 c4 d7 c3 f6 g3 b6 a3 f7 g2 d6 a2 Nh3 g1N Nd2 c2 Nf2 f3 Rb1 Nc6 b8R a1N b7 Qb6 d8B e2 d7 Qd4 Bb6 Bg7 d8B Nge7 f8N+ Kg8 g6 Ra7 Ne6 Qd5 Nf4 Nb3 Ng2 Qh5 Ra8 Be6 b8N Rb7 h7+ Kf8 Bbc7 Rg8 h8Q Nc5 Bg3 Ba2 Bh4 Bb3 Bc7 Na6 Bb6 Bh6 Qa1 Bg7 Bb2 c1Q B2d4 Qa3 Be3 Nh3 Rg1 Nf5 Nh1 Nf4 Kf2 Nd6 Ne1 Bf7 Qa4 Bb3 Ng2 e1B+ Kf1 Be5 g7+ Kf7 Rd1 Kg6 Rb1 f2 Rd1 Na5 Nc6 Kh7 Nd4 Ng6 Rf8 Nc6 Rc8 Rd8 g8N Bg7 Ne7 Re8 Nd5 Rg8 N2f3 Bd2 Nge1 Ba5 Ke2 f1N Nc3 Nh2 Ra8 Ng4 Nd2 Rf8 Rb1 Rf3 Rg8 Rg3 Nd3 Nf8 Rgd1 Ng6 Ne1 N4e5+
N2QR3/r2Br3/RQ1Nq1kN/n2R1q2/1b2r1b1/4nn2/1BBq4/1nKN1N2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 Kd2 h5 f4 e5 g4 c5 g5 h3 d6 b3 d7 c4 d5 e4 d6 b2 g6+ Kg7 b6 h2 f6+ Kh6 g7 h4 f7 h3 f5 Qe7 d8N Be6 f6 Na6 b7 Ra7 b8Q Bd7 Nb7 Qd8 Ne2 Nb4 Nbc3 Kg6 Ra6 Bg4 d7 Qb6 d8N Rh7 Ng3 Qe6 Nd6 Nc6 Bd3 Nh6 g8B Nf5 Nf1 Ne3 Bc2 Na5 Qb6 Qf5 Rg1 h1Q Rg2 Be7 f8R h2 f7 Rg7 Re8 b1N+ Ke1 Qg1 Rd2 h1R Bb2 Rh4 Rd5 Qh1 Qd2 Qh3 Nd1 c3 Qdd4 Qe6 Qd2 Qf3 Qdd4 Qff5 f8N+ Kh5 Nd7 Kg6 N8f7 Bf8 Nh6 Re7 Bd3 c2 Qd8 c1Q Nb6 Qc2 Na8 Bg7 Bf7+ Kh7 Rc6 Bh5 Qc5 Nec4 Nf2 e3 Rf8 e2 Nd1 Ne3 Ra6 Re4 Qcb6 Bg4 Be8 Be5 Bd7 Kg6 Re8 Bd4 B3b5 Bc5 Ba4 Bb4+ Rd2 Qcc4 Bb3 Qcd5 Bc2 Nc3 Rd3 Qd4 Kd2 e1N Kc1 Nf3 Rd2 Nb1 Rd3 Qc3 Rd5 Qd2+
1KbbqkqR/1bNB3Q/B7/1n1Rqb1q/3R2Q1/3N4/r2rN2R/4nRQ1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Qd6 Ba3 Bg7 axb5 Bf8 b6 Qd7 b5 Qd8 Bb4 axb4 Ke2 h5 Kf3 c5 Ke4 e5 f4 h3 d4 c4 g4 h2 f6 b3 f7+ Ke7 b7 h4 f5 b2 f6+ Kd7 b6 h3 g5 c3 d6 c2 Kd5 c1Q g6 e4 g7 e3 Nf3 e2 Nc3 b1Q Ne1 Qe3 Nd3 e1Q Ne2 Be7 f8N+ Ke8 d7+ Kf7 Ne6 Qc7 d8R Nc6 b8R Qbb4 b7 Nh6 g8B+ Kg6 f7 Nf5 f8Q Qcg3 Nc7 Ne5 Be6 Ra2 Bd7 Nf3 Kc6 Nd6 d5 Qbh4 Qf5+ Kg7 Qg4+ Bg5 Ra8 Nb5 b8Q Qee5 d6 Qh5 Qa7 Re8 Qb1 Kf8 Qg1 Qg2 Ra4 Bf6 Rd4 Bh4 Qe4 Qg8 Qh7 Rd2 Qg4 Bf6 Ra2 Be7 Rg1 h1B Kb6 h2 Rb2 Nc3 Ka7 Nb5+ Kb8 Bg2 Qc1 h1B Rd5 Bh3 Qc5 B1g2 Rh1 Qa1 Qg1 Ne1 Rb1 Qa4 Rh2 Bf6 Rd4 Qh8 Bc6 Nc3 d7 Be4 Qgf5 Ba6 Ka8 Nf3 Nc5 Bg2 Qg4 Bf5 Rc1 Qg7 Rc8 Kf7 d8R Re6 Kb8 Rd6 Rc4 Ra2 Nf4 Rdd2 Rcd4 Bg5 Bfb5 Be7 Rf1 Ne1 R8d7 Bd5 Re8 Bc8 Ne2 Bf3 R7d6 Bd8 Ba6 Bh1 Bcb5 Bhb7 Rh8 Ke7 Nd3 Kf7 Qh6 Qg8 Qh7+ Kf8 Be8 Qd7 R6d5 Qdf7 Bc6 Qfe8 Bd7 Nb5
2B1q1N1/rq3b2/B5Bq/1nKQN3/1Rq3Q1/N1q2B1r/2Qq4/qR2Bk1b w - - 0 1 illegal: No possible last move, all moves rejected
1Q2n1Br/2RBn1k1/1N2R2r/1n5r/1rb1K2n/Q2Nb2N/N3n3/1R3BrN w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 h4 g3 b3 Nf6 h5 Bb4 Ba3 Be7 Bc5 Kd7 Bd4 Qg8 Bf2 Qg6 hxg6 Bb7 Qc2 gxf2+ Kd1 Ke8 g4 Ba6 g5 Ng8 Kc1 Bc8 Qd1 Bf8 Kc2 a5 Kd3 f5 e4 h5 g7 Kf7 b4 c5 b6 h4 b5 a4 e5 a3 e6+ Kg6 d6 a2 d7 f3 d8N h3 b7 h2 b6 f4 e7 c4+ Ke4 c3 e8B+ Kh7 d4 c2 d5 c1N d6 Be6 d7 Bc5 Qd3 Ne7 g8N Ra6 g6+ Kg7 Nc6 Bc4 d8R Ne2 Bd7 Be3 Nb4 Ra4 Rf8 Na6 b8Q Nc7 b7 Ne8 Rf6 Nd4 Rb6 Nb5 Nh3 Rh5 Rg1 h1R Nc3 Rh6 Rc1 a1R Nf6 R1a2 Be2 f1N Ng4 f2 Re6 Nh2 Bf1 f3 Qdd6 R2a3 Nd3 Rb4 Na2 Ra8 Qa6 Rh5 Qa3 Rh6 Bg2 f1R Ngf2 Re1 Bf1 Rh5 Rb1 Ra6 Rg4 Rg1 Nh1 f2 Rg5 Nf3 Rc5 Nh4 Rc7 Rh8 Qc8 Rc6 b8N Rc5 Qb7 Rch5 Qba7 R5h6 Qa8 Rg5 Q8a7 Rgh5 Qb6 Kg8 g7 Kf7 g8B+ Kg7 Na6 Rc1 Nac5 Rd1 Na4 Re1 Bg2 Rg1 Qb8 f1N Nb6 Bf2 Kf4 Ng3 Bf1 Ne2+ Ke4 Be3
B2B2b1/R2b4/RK1N1Qqr/3Q2R1/R1N4k/b3nQr1/Rb2Nrq1/4q2r w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Ke7 d4 h5 Kd2 f5 Kc3 c5 Kc4 a5 e4 f4 g6 Kf6 e5+ Kg5 g7 a4 e6 h4 b6 g2 Kb5 a3 e7 a2 e8N h3 d6 g3 b7 c4 b8R h2 d5 c3 d7 c2 d6 Qc7 d8Q+ Be7 d7 Ra4 Qf3 Nh6 g8R+ Kh4 Nd2 Qd6 Rg5 Nf5 Ne2 g1Q Rb6 g2 Nc4 Qg6 Ned6 Rh6 Ra6 Ne3 Kb6 Ra5 Bd2 c1Q b5 Qe1 Qg8 Ra4 d8Q Bd7 Qgd5 Rb4 Qh8 Rb2 Ba5 Qgf2 Qc3 g1R Qf6 Rg3 Bg2 Bf8 Rg1 h1R Rf1 Qg1 Rf2 Be7 Rb1 Rd2 Rb4 a1B Ra4 Ra2 Kb7 Bb2 Bd8 Qh2 b6 Qhg1 Kc7 Qgf1 b7 Qg1 Nc8 Bea3 b8R Qgf1 N8d6 Qg1 Qa8 Qgf1 Qfd5 f3 Rb7 Qg1 Rba7 Qh2 Rf1 f2 Kb6 Qh3 Rg1 f1B Be4 Qh2 Rg2 Qg1 Rh2+ Bfh3 Rf2 Bhe6 Bg2 Qh2 Qdf3 Qhg1 Qad5 Bg8 Nc1 Qgf1 Qc6 Ba1 Q3f5 Qh5 Bd5 Bc3 Qf3 Qg1 Qc5 Qh2 Ba8 Qg6 Qcd5 Qg2 Re2 Rd2 Rf2 Rd4 Rc2 Rd2 Ra2 Rf2 Ne2 Bcb2
QNb1nqnK/4BqN1/r7/p2rQ1RR/B2n2b1/RQNk4/8/1n1N1Nn1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Ke7 Kd2 Kd6 Ke3 h5 Kf4 c5 e4 a5 b4 f5 e5+ Ke7 g6 h4 Kg5 f4 e6 Kd6+ e7 c4 g7 g2 Kg6 g3 e8N+ Ke7 d6+ Ke6 d7 Kd5 b6 Ke4 b7 f3 d5 f2 d6 h3 b5 h2 b6 c3 Nd2+ Ke3 Nc7 c2 Bb5 f1N Nh3 g1N Nd5+ Kd4 Ba4 g2 Ra3 Nf6 g8R Ne4 Kg7 Nf3 Nc3 g1N Nf2 Nc6 b8Q Ra6 b7 Rh5 Bb2 c1Q Qb3 Rg5+ Kh8 Rd5 Nfd1 Qf8 d8N Ne7 d7 Nd6 Ne6+ Kd3 d8Q Nd4 Ng7 Ne8 Qe5 Qb1 b8N Qa2 Nc6 Bg4 Qa8 Bc8 Nb8 Bg4 Nde4 Nd2 Ng3 Nb1 Bc1 Qaf2 Bg5 Q2f7 Nf1 Ngf3 Rg1 h1B Bf6 Bg2 Rh1 Ng1 Rh5 B2h3 Bh4 Bc8 Bg5 Bhg4 Bh4 Nef5 Bg5 Nh6 Be7 Qf3 Nf5 Qf7 Rgg5 Ng8 Ng7 Q3f6 Rg6 Qf8 Rgg5 Q6f7
1QB2R2/rQN5/1nB4r/N5rN/1r1k4/Q2p1nRK/B5qb/1QQq1bq1 w - - 0 1 illegal: No possible last move, all moves rejected
1qb1Q1QR/p2rRQ2/1R1B1Rb1/k2nNKn1/3b2n1/B1N1R3/3n2rB/4b3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Ke2 Kd7 Kd3 e5 Ke4 c5 d4 Kc7 b4 Kb6 h4 f3 g6 g3 f6 f2 d6 f1B d7 g2 g7 c4 f7 c3 d5 c2 h5 Bd6 f8R Bc5 d6 Nh6 g8Q Na6 Ba3 c1N Nc3 Qg5 d8R Nc7 d7 Be7 Rb1 Nb3 Rde8 Bf6 d8Q Bg7 Rf6+ Be6 Re7 Qg3 Qf3 Ng4 h6 Be2 Qde8 Rd8 h7 Rd7 Rh3 Nd5 Qf4 Qh2 Nf3 g1N Rg3 Nh3 Rb2 Kb7 b6 Ka6 b5+ Ka5 b7 Bd1 b8B Ng5+ Kd3 Nd2 b6 e4+ Kd4 e3 b7 e2 Ne5 e1B Rb6 Bf3 Bbd6 Bd1 b8B Bf5 Re3 Be2 Qe6 Rg8 h8R Qh7 Ng6 Rd8 Bdc5 Qh2 Rf7 Nh3 Qg5 Nh6 Re7 Bfg4 Q6f7 Bc8 Qg3 Bh5 Ke5 Rd7 Ke6 Nc4 Rf5 Bd4 Rf6 Nd2 Qg2 Qc7 Qg5 Qb7 Bh2 Qb8 Ne5 Rg7 Bd6 Rg6 Qf4 Rg2 Qg5 Ng4 Qgg8 Ng5+ Kf5 Bg6+
B1k2q2/nN1q2n1/1rBq1B2/1q2R1qR/1r2Rp1Q/b1N5/1RQ2NK1/2nR4 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 h5 e4 c5 e5 f5 e6+ Kc7 e7 a5 e8R f4 g5 c4 g6 a4 g7 h4 d6+ Kd7 b6 c3 b7 c2 d5 a3 b5 h3 b6 h2 Nc3 a2 Nh3 g1N Re5 g2 Kf2 Qe8 Bb5+ Nc6 b8R Ne2 b7 Nh6 g8B Ra6 Bb2 c1Q Qc2 Qd2 Rad1 a1Q Kf3 g1Q Nf2 Qf7 Rbe8 Qg5 b8R Qa4 Bh7 Rb6 Be4 Nf5 Ba1 Qgh5+ Kg2 Ng7 R8e6 Qb4 Rb7+ Kd8 d7 Na7 Bc6 Qd6 Rb8+ Kc7 d8N Nc1 Nb7 Be7 Bf3 Qf8 Re4 Qd7 R6e5 Ba3 Bb2 Rh6 Ba1 Rb4 d6+ Kb6 Bb2 Qd5 Ba1 Qb5 Bb2 Qde7 d7 Qd6 d8Q+ Ka6 Qd7 Qg5+ Qg4 Kb6 Qg3 Kc7 Ba1 Qgf5 Qh4 Qfd7 Rh5 Re6 Re8 Rh6 R8e5 Kc8 Rd2 Re6 Rhd1 Q6c7 Bd5 Rb6 Bc6 Qcd8 Qa4 Qdd6 Rb2 Q8d7 Qc2 Qa4 Re3 Kc7 Rb3 Qa6 Kh1 Qdc8 Be8 Ne6 Ne2+ Qc6 Red5 Qcc5 Bf6 Qc6 Nd8 Qd3 Rde5 Qb5 Nc3 Ng7 Rb2 Qcd6 Ba8 Qf5 R3e4 Kc8 Bec6 Qfd7 Nd3 Qde8 Nb7 Qed7 Kg2 h1Q+ Kf2 Qe1+ Kf3 Qf1+ Nf2 Qfd3+ Kg2 Qg3+ Kh1 Qgg4 Kh2 Qgf5 Kg2 Qg5+
1Nr1Q1NR/r1Q2NK1/1R3n2/RB3qn1/Rq1q3q/1B1R3r/p2Qn1k1/3b4 w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 b3 f5 Ba3 h6 Bb2 f4 Bf6 f3 Bg5 Bd6 Kc1 Bf4 gxf4 hxg5 Kc2 Kf7 Kd3 Kg6 Ke4 Kh5 Ke5 Kg4 h4 Kg3 d4 a5 e4 c5 h5 g6 b6 g4 d6 g5 d7 a4 b4 a3 b5 c4 d5 c3 h6 c2 b7 c1N d6 Ra6 f5 Nb3 f6 Nd2 b6 Ra4 f7 Nf6 f8Q Ra6 h7 Ra5+ Bb5 f1Q Qe8 f2 Nc3 Nh5 Nd5 Qe1 Rh4 f1Q Ne7 Ra7 Nh3 Kg2 Ng8 g3 Bc4 g4 Bb3 Qf8 Ng5 Qef2 Nf7 Nf4 Qc1 Qf3 Qc7 Ne2 Ke6 Qg5 e5 Ne4 Rh5 Qh4 Rg5 Na6 b8R Nb4 b7 Nd5 Rh5 Qd3 Kf5 Qd4 Kg6 Ndf6 d8Q Ng5 d7 Qfb4 e6 Qd5 e7 Qf5+ Kg7 a2 Ra8 Qbc5 b8N Qb4 Rb1 Ba6 Re1 Bd3 Rd1 Bc2 Rd6 Bd1 Rd3 Kf2 Rh6 g2 Rd5 g1R Ra5 g3 Rg6 Nfe4 Rb6 g2 Ra4 Rb7 R8a5 Nf6 Qc1 Kg3 Qd2 Rh1 Qc7+ Kh3 d8R g1Q Rd3+ Kg2 Qec8 Ra7 e8B Qgd4 Bb5 Rh2 Qe8 Rh3 Ngh6 Qfe5 Qee7 Rd8 h8R Qf5 Ng8 Rc8 Qe6 Qfg4 Qe8 Qf5
2KR4/q2N4/1q4Qn/3Qn1nB/kn1rNb2/q2B1r1p/1Q1Q2Q1/2q1N1RR w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b3 g3 Bb2 Qg5 Bd4 Qd8 Bf2 Ba3 h3 Bg4 hxg4 Qf6 g5 Ne7 Qc1 gxf2+ Kd1 Bc5 g4 Ng8 Qc2 Qe7 Kc1 Qd8 Qd1 Bf8 Kb2 Kd7 Kc3 h5 Kd4 a5 Ke5 f5 e4 c5 d4 a4 d6 f3 b4 a3 b6 Kc6 Ke6 c4 d5+ Kb5 e5 f4 d7 h4 g6 a2 d6 h3 b7 Nc6 b8N Ra4 g7 Rh4 g5 Qb6 d8Q Nce7 Kd7 Nc6 e6 Ra3 g6 Nh6 g8Q Ne5+ Kc8 Rd3 g7 c3 d7 c2 e7 c1N e8B Bd6 Be2 f1Q Bh5 f2 Nd2 f3 Ne4 Qe1 Qe6 f1N g8Q f2 Nf3 Nd2 Qeg6 Qg1 Ne1 Ndf3 Qd2 Ka4 b5 f1Q Qg2 Qa7 b6 Ng5 b7 Rf3 Qg6 Qgb6 Bd3 Bc7 Rb1 a1Q Qdg8 Na2 d8R Nb4 Nd7 Bd6 b8Q Qa3 Qd5 Qfg1 Qc7 Qge3 Qcc3 Bc7 Qcb2 Bb8 Nd6 Rd4 Ne4 Bc7 Nc2 Bb8 Rbg1 Bc7 Ne1 Bd6 Qdc3 Qc1 Qbd2 Bc7 Qcb2 Nc4 Qg3 Bf4 Qgg2 Ne5+
1n5R/3n3R/1rn1K1bR/1N1QNn1r/N1N5/rB2qq1p/1N1Q1Q2/k3rB2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 h4 Qd7 b3 Qh3 Bb2 Kd8 Bd4 Be7 Bf2 Bg5 hxg5 Ba6 g6 Bb7 Qc1 gxf2+ Kd1 Ke7 g4 Ke8 g5 Qc8 Kc2 Ba6 Qd1 Qd8 Kc1 Bc8 Kb2 Kd7 Kc3 Kd6 Kc4 Ke5 e4 h5 d4+ Kd6 b6 c5 g7 a5 b7 f5 e5+ Ke7 e6 Kd6 g6 h4 b4 a4 e7 a3 e8N+ Ke7 d6+ Ke6 b5 a2 d5+ Ke5 b6 f3 d7 f4 d6 Ra7 Nh3 Ra3 Nc7 Nf6 g8Q Qf8 d8N Bf5 g7 Rh5 d7 Bg6 Nde6 Qe8 d8Q Nfd7 Qf8 Ra6 Bd3 f1R g8B f2 Nd2 f3 Nhf4 Re1 Nb5 f1N Rh2 Ng3 Bf1 f2 Qc1 Nc6 b8R Nf5 b7 Rb6 Rc8 Qe7 b8N Qe8 Rb1 a1R Rb3 Ra3 Rbh3 Nfd4 Qd1 Qf7 Qf3 Qf5 Qh1 Qe4 Bf7 Qf3 Nd3+ Kf5 Nb2 Ke5 Nb3 Ke4 Na5 Ke3 Qg2 Kd2 Qgg5+ Kc2 Qd5 Kb1 Q8g5 Ne7 Nbc6 Ka1 Ne5 Nec6 Qd2 Ncb8 Rc7 Ndc6 Bg8 Nf6 Rh7 Nfd7 Nec7 Rae3 Nc3 Rd3 Nca4 Ra3 Bd3 f1N Nb5 Ng3 Bf1 Qe3 Qff2 Qf3 Qe4 Nf5 Kd5 c4 Ke6 c3 Qed5 c2 Nac4 c1Q Rh8 Qcc3 Ne3 Nf8+ Kf6 Rg5 Q5d4 Rg1 Bb3 Rg5 N3c4 Nfd7+ Ke6 Qce3 Qd5 Rg1 Rg3 Rg2 Rg5 Rg4 Rgh5 Rg5 R5h7 Ra6 Rg2 Rb6 Rg4 h3 Rgh4 Qef4 R4h5 Q4e3 R5h6 Rh5
2r3q1/q3kBp1/QnQb3N/1QRBbb2/Q1q1b3/4R2Q/1Krq1N2/B2R4 w - - 0 1 illegal: No possible last move, all moves rejected
Brb3Bq/1pb3K1/qbBB1N2/8/3Q2Nb/1RR3bB/3Nkq2/QR1n2q1 w - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 a5 b4 axb4 g4 c5 dxc5 Ra5 f5 Ra8 g5 Nc6 h3 Ra6 h4 Ne5 Qh5+ Nf7 Qd1 Rf6 gxf6 g5 Bd3 g4 Bf1 Ng5 hxg5 Qa5 Nf3 Qb6 Ng1 Qd8 Kf2 Kf7 Ke3 d5 Kf4 e5+ Ke3 h5 a4 g3 c4 h4 c6 g2 c7 h3 a5 b3 c5 b2 a6 h2 a7 Bd6 a8B Ne7 c6 Qf8 Nd2 b1Q Nh3 g1B+ Nf2 Qa2 Bh3 Qa6 Ba3 Rg8 Rb1 Rh8 Rb5 d4+ Ke2 d3+ Ke3 Rg8 Qa1 Rh8 Rb3 Rg8 Nf1 d2 Bg2 d1Q Nd2 Qh5 g6+ Ke8 g7 Kf7 Qb2 Be6 c8B Bc7 Qa1 Rh8 Nf3 Rg8 Bd6 Nd5+ Kd2 Rh8 Ng4 Bgb6 Rhb1 Ne3 Kc3 h1Q Nd2 Qg1 Bh3 Rg8 Bd7 Nd1+ Kb4 Bb8 c7 e3 c8R e2 Rcc3 e1B Bb5 Bc8 Kc4 e4 Kd5 e3 Ke5 e2 Bd7 Rh8 Bc6 Kg8 f7+ Kh7 Kf6 Bg3 Nf1 e1B Nd2 Qe8 f8Q Qee2 Qe7 B8c7 Qe4 Qef2 Qd4 Rd8 Ne3 Kh6 g8B Qg4 Kf7 Kg5 f6 Qh5+ Kg7 Rf8 f7 Re8 f8N Bh4 Qda4 Rd8 Bb4 Kf4+ Ng4 Bg3 Nh7 Rf8 Ne4 Re8 Nhf6 Rf8 Ne3 Kf3 Neg4+ Ke2 Bd6 Bh4 Ng5 Qc5 Bh7 Beg3 Qf4 Bd7 Bg8 Qcf2 Nge4 Rb8 Nd2 Bc8 Qd4 Qh8+
5R2/bnQ4R/k1Kn1b1p/p3n1N1/N2N1rr1/5BN1/R1Q1q1q1/q2QN1B1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kc8 Kd2 Kb7 Ke3 f5 g5 a5 g6 c5 d6 c4 d7 c3 g7 c2 b6 f4+ Ke4 f3 Kd5 f2 e4 Bd6 e5 Ra6 b5 Bc7 e6 Ra7 e7 Bf4 e8Q Bd6 Ra2 Bf8 Be3 c1B Be2 f1N Bf3 Nh2 Qe4 Ra8 Nc3 Qe7 d8Q Ba3 Na4 Na6 Qec2 Nh6 g8N N2g4 Nf6 Rc8 Nh5 Ne5 Qdc7+ Ka8 b7+ Ka7 Rh3 Nc5 b8R+ Nb7 b6+ Ka6 Bf2 Bc5 Rh2 Nd7 Kc6 Bg7 d5 Rhg8 d6 Rcf8 Rd8 Rf6 Rf8 Rf4 Rh4 Nf5 Rh3 Nf6 d7 Qe2 d8N Nd7 Nf7 Bf6 Rh1 Rgg4 Ng5 Nbd6 b7 Ba7 Kd5 Ne5 b8N+ Kb5 Be3 Nb7 Nc6 Nfd6 Nd4+ Ka6 Be4 Nec4 N1f3 g1Q Ne1 g2 Bf3 Ne5 Ng3 Qgf1 Rh2 g1Q Rh5 Qgg2 Bg1 Qff2 Rh6 Qfe3 Rh4 Qc1 Rh6 Nec4 Kc6 Qa1 Rg6 h6 Rg7 Nc8 Rd7 N8d6 Rh7 Ne5+
3b3k/N1Q1Npbp/b1NrB3/nQ2r3/2Q2RN1/Bn1N4/1q1R2rK/3R2q1 w - - 0 1 illegal: No possible last move
1QB1n2K/1RBN2nb/1NRr2R1/2n1Q3/RR5p/b1Qnr3/p3krq1/2B5 w - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 c4 f5 exf5 g5 cxd5 gxh4 a4 cxb4 axb5 Qd6 Ke2 Qb6 Ke1 Qd8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 h5 g4 a5 f4+ Kh6 d4 e6 g5+ Kh7 d6 h3 b6 a4 f6 Kg6 b7 b3 d5 b2 f5+ Kf7 g6+ Ke8 g7 Kf7 d7 h2 d6 h4 Nf3 a3 Qd2 Qe7 d8B Na6 b8R Nc5 d7 Rh6 Nc3 b1R Na4 Rb2 Qc3 Rf2 Ba6 a2 Bc7 Qe8 d8R Qc6 Nb6 Rg6 Rg1 h1N Rd6 Ng3 Rb7 Nh5 Rg4 Bd7 Rc4 Re8 Rb1 Rh6 Rbb4 Be7 Nh2 Qg2 Nf3 Ba4 Rc6 Bc2 Ra4 Bf8 Rcb4 Bb1 Kd4 e5+ Kd5 e4 Kd4 Ne7 Ke5 e3 g8R e2 Rgg4 Ng7 Rg6 Kg8 f7+ Kh7 Kf6 e1N Ne5 Ned3 Ned7 Nc8 Qe5 Nd6 Qc3 Re3 Qe5 Nb5 Qc3 Bd6 f8Q Bc2 Qf7 Bf8 Qfc4 Nd6 Qd5 Nde8+ Kf7 Be7 f6 Bf8 Qde5 Be7 Rgg4 Rg6 Rg3 Kh6 Kg8 Bf8 f7 Rd6 Kh8 Be7 Qe4 Kh5 f8Q Bf6 Bb2 Nc1 Qd2 Be5 Qef4 Bh7 Ra7 N1d3 Bc1 Bb2 Rg6 Nf6 Qc3 Ba3 Qb8 Nfe8 Qe4 Rd2 Bc8 Rf2 Rf6 Kg5 Rb7 Kh5 Qe7 Kg5 Rg6+ Kf5 Nc4 Kf4 Qee5+ Kf3 Ncb6 Ke2
rNQBRR2/bN2nb2/5r1q/B2pNNQ1/2NbkpK1/n6R/2r5/5Qb1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 g4 h5 gxh5 d3 c3 Qa5 Bg2 Qb6 Bd5 Qc7 Bb3 Qd8 Bc2 dxc2 Kf2 Ke7 Kf3 Ke6 b4 Kf5 e4+ Ke6 h4 a5 h6 f5 b6 g5 h7 d5 h5 f4 b5 a4 c4 a3 c5 a2 b7 Qf6 c6 Ra4 h6 Ra5 c7 Ra4 b6 Ra6 Ne2 Qd8 Nd2 Nf6 Qf1 Qe8 Ng3 Be7 Rh3 Ng8 Nc4 Qf8 Nf5 Ra4 Bd2 Na6 b8B c1R b7 Kd7 e6+ Kc6 e5 Bb4 e7 Kc5 e8N Be6 Ned6 Bf7 e6 Ba3 e7 Nb4 Be1 Nc2 Rb1 Ra8 Ba5 a1B Rb6 Be6 e8R Ne7 Ba7 Rg8 h8N Rg6 b8N Bg8 h7 g4+ Ke2 g3 Kf3 g2 Nhf7 g1B h8Q B1b2 Qh4 Qh6 Qg5 Bb4 Nfe5 Na3 Kg4 Rc2 Rg3 Bd2 Rh3 Bde3 c8Q+ Nc6 Ne7 Kd4 Nb7 Ke4 Nf5 Ne7 Rf6 Be6 Rff8 Bf7 Bd4 Rf6 Bdb6 Ba1 Bc7 Ba7 Bd8 Ba1d4
RB1b4/1N1rQ3/4npnB/Q1r1p1B1/3Q1NR1/Bk2n3/1nrb3K/1B3q1R w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 Nd7 axb5 Nb8 d4 Nc6 d6 Bg7 e5 Bf6 d5 Nb8 Kd2 Kf8 f4 Bd7 e6 Bd4 f5 Bf2 f6 Nxf6 exd7 Ng8 Ke2 e5 Kf3 c5 b4 h5 g4 a5 Kg2 f6 g5 Kf7 b6 a4 b5 a3 b7 c4 b6 a2 Bd3 c3 Rh3 c2 Rg3 h3+ Kh1 h4 Rg4 h2 Nd2 Nc6 Nb3 Nge7 Na5 Rh7 Nh3 Rc8 b8Q Qh8 d8Q Nd4 d7 Rc7 Kg2 h1R d6 Ke6 b7 Kd5 g6 Ne6 g7 Ng6 g8R Bb6 Qa8 Rc5 Bg5 c1B Nf4+ Kd4 Bf5+ Kc3 Qa7 Kb4 Qd4+ Ka3 Qe8 h3+ Kg3 h2 d8B Rd5 d7 Bd2 Rg1 a1N Bb1 Nc2 Qa8 Bc7 Be7+ Rc5 Bf8 Rf7 Re1 Qh4+ Kg2 Qf2+ Kh3 Rg1 Bfh6 h1N Qf8 Qf3+ Kh2 Nf2 Qa6 Nd3 d8B Nb2 Rh8 Rd7 Be7 Ne3 Qf7 Bb6 Ra8 Bd8 b8B Qd1 Nb7+ Kb3 Qh7 Rcc7 Ba3 Rc5 Qe7 Qc1 Qa5 Qc4 Re2 Rc1 Re1 Rc2 Rh1 Qf1
2B1K1k1/1b1B1R1b/1RpB2nr/Q2b1r1R/N2R2NN/2p4b/RnQ3q1/7r w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 h4 g5 hxg5 a5 b3 a4 b4 Bc5 Rh6 Bb6 Rh1 Ba5 bxa5 Qd4 Rh5 Qd7 Rh1 Qd8 Kf2 Kf8 Kf3 h5 Ke4 f5+ Ke5 h4 e4 f3 g4 c6 d4 h3 b6 f2 a6 h2 b7 f4 a7 a3 d5 a2 g6 f3 g7+ Kf7 d6 Qb6 d7 Rh7 Kd6 Nh6 d8R Bd7 g8N Qe3 e5 Qe2 e6+ Kg7 Ke7 Qe5 g5 Rh8 g6 Qb5 Qc2 Qg5+ Nf6 Bc8 Bf4 Ng8+ Ke8 Rh6 e7 Na6 b8R Nc5 Bd6 Bb7 Ng4 Na4 Bh3 f1B Nc3 f2 Nf3 Nb2 Na4 c3 Nh4 Bd3 Raf1 Kh8 g7+ Kh7 Rd7 a1R Rd1 Bf5 Rd4 f1B Rc7 Qd2 Rd7 Qg2 Rc7 Bc8 Rb6 Bfa6 Rd7 Bab7 Rc7 Rb8 a8Q Bd3 Qa6 Ra8 Qb5 Ra5 Qb4 Rf5 Qa5 Ra3 Ra1 h1B Ra2 Be6 Kd8 Be4 e8B Ne7 Bd7 Kg8 Ke8 Ng6 Bc8 Rb3 Rf7 Rbb5 Ne5 Rfh5 Bg4 B6d5 Bgd7 Be6 Ng4 Rbd5 Nf2 Bh3 Ng4 Rdf5 Rf6 Kh7 g8R Bd5 Rg7+ Kh8 Rh7+ Kg8 Rff7 Ne5 Rhg7+ Kh8 Rd1 Qg3 Bf8 Rhg5 Bb4 Rf1 Rg6 Bhe4 Qb3 Rh1 Rd4 Qg2 Bd6 Bf5 Rgf6 Bh7 Qc2 Kg8 Rff4 Ng6 Rfe4 Rf5 Re5 Rf3 Rh5 Rf5
1NB4R/kn2p1q1/4N1B1/r2Bb1N1/R1Nnb3/2n1QN2/2Q1p1rn/4rQK1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 fxg5 h6 g4 Nd7 g6 Nc5 g7 Na6 g5 Nb8 g6 Bf5 b3 Be6 Bb2 Bh3 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 d4 c5 h4 Kc7 d6+ Kb6 h5 a5 d7 g4 h6 a4 b4 a3 h7 c4 d5 a2 d6 c3 Bh3 c2 Nf3 c1R Qc2 Ka7 b6+ Ka6 b5+ Kb7 Nbd2 Re1 Nc4 Nf6 g8B Na6 g7 Nd5 Bf7 Nc5 g8B Nc3 Bg6 Ra5 Bd5+ Kb8 b7 e3+ Kg2 Ka7 b8N g3 Rh2 Qe8 d8N e2 d7 Bb7 Ne6 Bg7 d8Q Qg8 Qf8 Be5 Qh6 Qg7 Qe3 Rg8 h8N Rf8 Nf7 Ba8 N7g5 Bc6 Rb1 a1N Rb4 Nb3 Ra4 Nd4 Bhf5 Nb7 Rh8 Rf6 b6+ Ka8 Kh3 g2 Bg4 g1N+ Kg2 Nc5 b7+ Ka7 Nf4 Rf8 Bc8 Rf5 Nfe6 Rf6 Nh4 Ngf3 Kf2 Nh2+ Kg2 Nf1 Kg1 Rf2 Nhf3 Bd7 Nc7 Bf5 Nce6 Be4 Nc6+ Ka6 b8Q+ Nb7 Qc7 Qh7 Qd6 Qg7 Nb8+ Ka7 Qd8 Ra1 Qf8 Nh2+ Qec1 Rb1 Qf1 Ra1 Qf4 Re1 Qe3 Rg2+
2B1Rqr1/3p1qbK/qQ1q3p/1b4k1/QnR2R2/n2N1Q2/1r2NR2/1R1B1B2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 b5 exf5 Na6 Ba3 Bh6 axb5 Bf8 b6 Nb8 b5 Ba6 Bc5 Bc8 Bb4 axb4 Ke2 Kf7 Kf3 e5 Ke4 h6 f4 b3 c4 b2 g4 d3 f6 Kg6 f5+ Kf7 c5 d2 c6 Ra5 b7 Qc7 b6 Ra7 g6+ Ke8 g5 Ba3 g7 Kf7 g6+ Ke8 f7+ Ke7 f8R Qd8 c7 Ra8 f6+ Ke6 f7 Kf6 Rh2 Nc6 b8R Ra5 b7 Nge7 g8B Rb5 g7 Kg5 Ne2 Na5 Qa4 d1Q Rf2 Nec6 Nbc3 Nc4 Nd5 Nb4 Ndf4 b1Q+ Nd3 Qbb3 Rc1 Bb2 Rc3 Na3 Rc4 Qe7 Bh7 Qf6 g8R+ Qg7 Bg6 Ba1 Re8 Qf8 Rg7 Rg8 Bh5+ Kh4 Kf5+ e4+ Kg6 Bb2 Ne1 Qdd6+ Kh7 Rb6 Rg1 Bg7 Nd3 Rb5 Rh1+ Kg5 Rh4 e3 Rhf4 Qa6 Bf3 Qfd6 f8Q Qa2 Nd4 e2 Bh5 e1Q Bd1 Qee5 Ne2 Qef6 Qf7 Qf8 Qd5+ Qe5 Qf3 Qed6 Ra8 Qd2 b8Q Qa2 Qb6 Bb7 c8B Bc6 Rb8 Qb3 Qc7 Rb7 Qb6 Bb5 Rc1 Qbf7 Rb1 Ra7 Rb7 Ra8 Rc7 Ra7 Rcc4 Rc7 Rce4 Rc2 Rc4 Rb2
b1Rb4/BrR3Bn/2RBr3/1p2Q1Q1/2p1q2q/5BBK/r2r2N1/1k2rNN1 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ne5 h5 Ng6 hxg6 Ra8 Kf2 Kd7 Kg2 Kd6 a4 Ke5 d4+ Ke4 d6 e5 d7 c5 g7 b5 g6 h5 d5 b3 d6 c4 f6 b2 a5 h4 f7 f3+ Kh3 f2 a6 Rb8 a7 Rb7 a8N Rh6 Nd2+ Ke3 Qe2+ Kd4 Nb6 Kc3 Bg2 Kc2 Nd5 f1Q Ra6 b1R Rc6 e4 Nf4 e3 Bb2 Qc1 Bf3 Be7 f8B Qe8 Ng2 Nf6 g8R Nh7 g7 Ra1 Nf1+ Kb1 Qe1 Re6 d8B e2 d7 Ra2 Bb6 Qg6 d8B Qe4 Bdc7 Bd8 Bfd6 Bd7 Qg3 e1R Qe5 Qcf4 Ba7 Rd1 Rf8 Rd2 g8Q Be8 Qgg5 Bg6 Bcb6 Be8 Rc7 Bc6 Bf2 Bd5 Bg3 Bc6 Kh2 h3 Rf6 Rb6 Rc8 Ba8 Rf7 Rb7 Rfc7 Rf6 Qef5 Rg6 Bg7 Re6 Qe5 Rf2 Nd2+ Kc1 Bb4 Rg6 Ne2+ Kc2 Nf1 Kb1 Ne3+ Rf1 Ba3 Rc1 Rd1 Re6 Rd6 Rd1 Rdc6 Rdd2 Bd6 Qf6 Bf4 Qf8 Kg3 h2 Kh3 h1R+ Bh2 Rc1 Ng1 Re1 Bg3 Qff4 Nf1 Qh4+
1r1R1B1q/rN1n1r2/1pbQBp2/3Q2R1/4b1BB/7K/2B1Nr1Q/1Rr1qk2 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 g5 Ra6 Qb3 Ra4 Qd1 Ra8 h4 f6 g6 Kd7 Bg2 Nc6 Nc3 Ne5 Bf1 Nf7 gxf7 g5 Nb1 g4 Kf2 Bh6 Ke1 Bg5 hxg5 Ra5 Nc3 Ra3 Nb1 Ra8 Kf2 Kd6 Kg2 Ke5 f8B Kd4 a4 c5 e4 h5 g6 c4 e5 b6 d6 g3 a5 b3 a6 b2 d7 h4 e6 f3+ Kh3 c3 g7 g2 a7 f2 e7 c2 e8B Rh5 Na3 b1Q Bd3 f1B Qe2 Nh6 g8B Rf5 Nc4 Ng4 Be6 Rf2 Bh5 Rb8 a8Q Ne5 Nd6 Bb7 Bhg4 Bc6 Nb7 Qc8 d8Q+ Nd7 Be4 Qb4 d3 Qe1 Bg5 c1R Ra5 Ra1 Re5 Ra7 Qe7 Kc3 d4 Qd8 Qa2 Bd3 d5 Kd4 Be4f5 Be4 d6 Kd3 Ne2 g1R Rb5 Rgf1 Rb1 Qe8 Rg1 Qh5 Bg6 Qh8 Rg2 Qa5 Qb2 Rc1 Qe5 Qd2 Qh2 Qe3+ Rg3 Kd2 Bh7 Ke1 Bhf5 Kf1 Qd8 Nc5 d7 Qd2 Qc7 Qe1 d8R Nd7 Qd6 Rc5 Bb3 Re5 Bc2 Re7 Be6 Rf7 Bh5 Ra4 Qa5 Ra3 Qad5 Ra7 Kg4 h3 Bh4 Bh1 Rf3 Bg2 Rf5 Bh1 Rg5 Be4 Qhf4 h2 Kh3 h1R+ Qh2 Rg1 Re5 Rg4 Rg5 Rgf4 Bhg4 Rf5 Qb3 Rc5 Qbd5 Rc4 Bd1 Rc1 Bb3 Qg8 Bc2 Qh8
K3R1B1/N1Nr1qb1/p1Q2RB1/N4pN1/1QN5/q3Qr2/r4r1b/1b2nk1B w - - 0 1 legal: proof: c4 g5 f4 d5 cxd5 e5 b3 exf4 a4 b5 axb5 g4 Ra2 g3 Ra3 Nc6 Ra1 Nb8 h4 Qg5 h5 Qh4 Bb2 Ba6 Bd4 Nd7 Be3 Ne5 Bf2 Ng6 hxg6 Ke7 Qc1 gxf2+ Kd1 Bg7 g4 Bf8 Kc2 Kd7 Qd1 Qd8 g5 Ke8 Kc1 Bc8 Kb2 Ke7 Kc3 Kd6 Kb4 Ke5+ Ka5 Ke4 d4 Ke3 b4 f5 g7 c5+ b6 h5 d6 c4 d7 h4 d5 a6 g6 c3 d6 c2 b5 c1B Qb3+ Ke4 Nd2+ Kd4 e4 f3 e5 h3 e6 h2 e7 Ra7 e8N Rh5 Nc4 Bb7 Nh3 Qc7 d8Q Bd5 d7 Be7 Qc8 Nh6 g8B Qf4 d8N Bb2 g7 Qg4 b7 Bf7 Kb6 Qg6+ Qc6 Ng4 b8Q Bd6 Bh7 Ne5 g8B Nd3 Nb7 Ne1 Bg2 f1R Nba5 f2 Ng5 Rd7 Nc7 Qf6 Qb4 Kd3 Ka7 Ke2 b6 Bc3 Rg1 h1Q b7 Qh3 Bg6 Bh2 Qe8+ Qe6 b8N Bg7 Ra4 Qa3 Bh1 Rh3 Ka8 Rf3 Rg2 Rg1 Rg4 f1R Rd4 R3f2 Rd6 Rgg2 Qe7 Rf3 Qe8 Qe7 Rf6 Qe6 Qee7 R1f2 Qec5 Kf1 Qe3 Qc3 Ra2 Qa3 Re2 Qe8 Qed2 Qf8 Re8 Be6 Qe3 Qf7 Qcb5 Bd5+ Nbc6 Be4 Qd5 Bb1 Na7 Ra2 Qc6 Rgf2
3bNBkb/1r2Q2N/2p2Q2/RR6/Nb2K3/1p1nBNr1/1b2Brn1/nQN5 w - - 0 1 legal: proof: f4 a5 e4 g5 c4 f5 g4 fxe4 b4 d5 cxd5 Qd6 f5 Qf4 f6 Bf5 gxf5 axb4 h3 g4 Bb2 g3 Bc1 Qg4 hxg4 Ra5 Nc3 Ra6 Nb1 Ra8 Ke2 Kf7 Ke3 b5 a4 h5 d4 e5 a5 g2 a6 h4 g5 h3 a7 h2 d6 b3 d7 b4 d8B c6 d5 b2 d6 Be7 d7 Rh3+ Nf3 g1B+ Ke2 e3 Kd3 e2 Ke4 e1B Be3 Rg3 Ra5 Na6 Nbd2 b1R Nb3 Nh6 g6+ Kg8 g7 Bc3 Be2 Bb2 Nc1 Ng4 Rb5 Rb8 a8N b3 Nb6 Nb4 Na4 Rb7 Bdb6 Nc2 Bbc5 Bd8 Bf8 Na1 f7+ Kh7 g8N Bf2 Ba7 Bfd4 f6 Ne3 Rg1 h1N Rf1 Be7 d8Q Ng2 Qc7 Bd8 Qe7 Bdc3 Be3 Bb4 Qc2 Kh8 Rd1 B4c3 Rdd5 Nf2+ Kf5 Nd3 Ke4 Kh7 Ra5 Kh8 Rdb5 Bd4 Bg7+ Kh7 f8Q Bdc3 f7 Bd4 Na2 Rf1 Qb1 Rf2 Nc1 Bdc3 Qf6 Bd4 Q8e7 Bdc3 Kf5 e4 Bf8 Bd4 Qg6+ Kh8 Nf6 Be5 Ne8 Bec3 Ba7 e3 Ke4 Bg7 Qgg5 Kh7 Qgf6 Bh8 Bd1 e2 Be3 e1B Be2 Rg5 Bg7 Bec3 f8N+ Kg8 Nh7 Bb4 Bf8 Rg3
1QB4b/B1n1R1BN/1p4nQ/R1nKnB2/r1r5/N3Bk2/p3n3/2Qnb2N w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 cxd5 Nd7 a6 Nb8 b3 b6 Ra3 Qd7 Ra4 Bb7 axb7 a5 Ra1 a4 Nf3 a3 Ng1 Qa4 bxa4 Kd8 Bb2 Ke7 Bc1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 h5 d4 h3 g5 h4 a5 f3 g6 f2 g7 h2 a6 c4 a7 c3 Nh3 c2 Be3 Ne7 g8B c1B Bh7 Nd7 Bf5 Bb2 Qc1 Ne5 Bc8 N7g6 b8B+ Ke7 d6+ Kf6 d7 a2 d5 Bb4 d6 Be1 Kd5 Kf5 Na3 Kg4 d8B+ f5 d7 f4 Bf6 f3 d8Q+ Kg3 Bg2 f1N Qf8 f2 Bg7 Nd2 Be4 f1N Nf2 h3 Bef5 Rh4 Rb1 Ba1 Rb5 Nb3 Ra5 Nc5 Qh8 Rc4 Qh6 Nd2 Rf1 Nde4 Nh1+ Kg2 Rf4 Nd6 Rd4 Ne8 Re4 Ned7 Re7 Nde5 Bf2 Bd4 e4 Kf3 Be3 Nc7+ Kd6 Ng4 e5 Ba1 e6 N4e5 Rd7 Bac3 e7 Bb2 e8N Bd4 Ng3 h1N Nf6 h2 Nh7 Nf2 Nh1 Nd1 Re7 Ng4 Nf2 h1N Kc6 Ng3 Nh1 N4e5+ Kd6 Nb5+ Kd5 Ne2 Bc7 Rb8 a8Q Bb2 Qb7 Ra8 Bb8 Ra6 Ba7 Bbc3 Qb8 Nc7+ Kd6 Bb2 Rb5 Raa4 Ra5 Ng4 Bf8 Bh8 Bg7 N7e6 Kc6 N4e5+ Kd5 Nc7+
1b2BB2/3q4/2RRQNQ1/b2b4/1r4Bb/b2QKN1q/B1Np1p2/B1k2nq1 w - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 hxg4 d4 cxd4 Ke2 d5 Ke1 d3 f3 a5 Be3 e5 Bd2 d4 Bc1 Nc6 f4 Nb4 Ne2 Nd5 exd5 e4 Ng1 Ra6 Kf2 Re6 Ke1 Re5 fxe5 Qg5 Qf3 Qe7 Qd1 Qd8 Kf2 Ke7 h4 f5 c4 g5 b4 f4 e6 Kd6 c5+ Ke5 e7 d2 e8B a4 h5 a3 d6 a2 d7 e3+ Ke2 Ke4 c6 g3 b6 g2 b5 g4 h6 g3 b7 Nf6 b8N Nd5 h7 Bb7 b6 Qh4 d8Q Ba3 c7 Qh3 Nf3 g1B c8B g2 Qe1 Bf2 Bg4 g1Q Nd7 Bh4 Qg3 Ba8 b7 Rg8 b8Q Rh8 Kd1 e2+ Kc2 Ke3 Nf6 e1B Qbd6 Rg8 h8B Rg5 Bc4 d3+ Kb3 Re5 Qe6 Re4 Bb2 Ke2 Bg7 Kd1 Bf8 Ne3 Kc3 Bd5 Qdd7 Rd4 Qh7 Nf1 Qg6 Bb7 Bd5 Rb4 Bc4 Bd5 Rh2 Qh1 Kd4 Kc2 Bc3 Kc1 Rf2 d1Q Rd2 Qa4 Rc2+ Kd1 Bb2 Qd7 Bc3 d2 Kd3 Qg1 Bb3 Bc1 Na3 Bf2 Rb1 a1B Ba2 Ba7 Bb2 Bb6 Rc6 Ba5 Be5 Bd4 Nc2 Ba7 Ba1 Bb8 Rb3 Ba3 Rbc3 Qhh2 Rd6 Kc1 Rcc6 Qhh1 Qf2 Qh3 Qd4 Bb3 Ke4 Bc4 Qd3 Bb3+ Nfd4 f3 Kf4 f2 Ke4 Ng3+ Ke3 Bd5 Nf3 Nf1+
Nrk4N/1R5q/1K2p3/2p1qRnB/3Q1qN1/2q1q1r1/bRR4R/B1qB2Q1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 f3 g5 f4 Bh6 gxf5 g4 c3 Bg5 hxg5 Nc6 c4 bxc4 Qe2 Nd4 Qd1 Nb5 axb5 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 Kd7 Ke3 a5 Kd4 h5 Kc5 c3 d4 a4 b4 c2 d5 e6 b6 a3 g6 h4 d6 e3 f6 c6 b7 g3 b8R g2 b5 a2 f5 h3 f7 h2 f8R e2 g7 e1Q b6 Qf6 b7 Rh4 Be2 Rf4 Nd2 Qf1 Nh3 g1Q+ Nf2 Qh6 f6 Rh4 f7 Qg4 Nc4 Ra6 Bb2 Qhg6 Rc1 Qh6 Ba1 Ra8 Kb6 Qf3 Ng4 Q1h3 Qg1 c5 Bd1 Nf6 g8B Ne4 Bh7 Qff4 Bg6 Qc3 Bh5 Nf6 Na3 Qfe3 Nb5 Ne4 Nc7 Ra3 Na8 Ng5 Rb1 c1Q Rb2 Qhf6 Rc2 Qff3 Rg8 Qff4 f8N+ Kd8 d7 Rh3 Rg6 Rg3 Rf6 Ra4 Ng6 Rb4+ Kc6 Rb5 Rf5 Qce5 Nh8 Rb4 Bb2 a1Q Bd4 Qa5 Ba1 Rb1 Rb2 Qac3 Kb6 Ke7 d8R Bd7 Rdf8 Bc6 Rfd8 Bf3 Rd2 Bd5 Rc2 Kd7 Rc8 Qef3 b8Q Qf3e3 Rg8 Ba2 Rg7+ Nf7 Qd6+ Kc8 Qd4 Ng5 Rb7 Qff2 Qf1 Qff4 Rg1 h1Q Rgg2 Qh3 Qg1 Qh1 Rh2 Qhe4 Rff7 Qh7 Rf5 Qef3 Rb3 Qc3e3 Rg7 Rb2 Ka6 Qc3 Rb6 Rb4 Ra7 Rc4 Rbb2 Rb4 Raf7 Rb8 Rfb7 Q3e4 Kb6 Qee3
RQ3r2/p7/nQr1qQ1K/1QrnBp1B/3n2N1/2q2q2/k1N1nR2/1N1B1Q2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 h3 f5 Ra2 Bb7 Ra5 Bf3 Nc3 Be7 Ra4 Bg4 Nb1 Bf6 gxf6 g5 Ra5 Bh5 Ra1 g4 Ra4 g3 Ra1 Bg4 hxg4 Qc8 Nh3 Qc7 Ng1 Qd8 Kd2 Kf7 b4 Ke6 c4 h5 e4 d5 f7 h4 f8Q g2 b6 d3 e5 h3 b7 f3 Ke3 d2 Kf4 h2 c5 d4 c6 Kd5 c7 d3 c8Q f2 b5 Rh6 e6 Qd7 Kg5 Nc6 b8Q Kc4 e7 Qd8 b6 Rh7 b7 Qb6 e8B Qc7 Qd8 Nd4 Qff6 Ne7 Bb2 Nd5 Ne2 g1N Ra2 Nb4 Bh5 Na6 Bg2 f1R Bf3 Re7 Kh6 Re5 g5 Rc5 g6 Qd7 g7 Qe6 Qe1 Kb3 g8N d1N Qda5 Rf2 Qf1 d2 Ba1 Nc3 Qb6+ Ncb5 Qe5 d1Q b8Q Qc2 Bfg4 Qc3 Rd2 Nc2 Nd4+ Ka2 Bd1 Nbc7 Qee2 Rc6 Qeb5 Nd5 Bb2 Rg2 Rf2 Ne2 Rg1 h1Q Ba1 Ne1 Nc2 Nf3 Bb2 Rg7 Rg3 Rgc7 Rh3 Qc5 Be5 Nfd4 Rg3 Qf3 Rg7 Ng3 Rf7 Nge2 Rf8 Qc4 Qd8 Rd7 Kg6 Rcd6 Nh6 Qcc3 Ng4 Rc7 Kh6 Rc5 Qdc7 Rc8 Qcb7 R8c6 Ra8 Rd8 Qb8 Rf8
1k1N2bR/5Bqb/Q2n1bQq/Q2b2R1/Kp4p1/2RN2Qq/3Q2B1/r1q1B3 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 h3 g5 Qb3 b5 Qd1 f4 Bg2 Nc6 Bf1 Nd4 h4 Nf5 gxf5 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bg7 Qa4 Bh6 Qd1 Bf8 e4 Kd7 a4 c5 d4 Kc7 Kd2 h5 Kc2 c4 a5 f2 e5 h4 a6 c3 Kb3 f3 f6 c2 g6 h3 e6 h2 d6+ Kb8 d7 Be7 d5 Qb6 d8R Qd4 d6 Qf4 g7 Rh3 a7+ Kb7 a8Q+ Kb6 d7 Kc7 f7 Rh7 f8Q Qf6 Qd2 Qd4 Nc3 Rh8 Nge2 Qe5 Nd4 Nh6 g8B Nf7 Na2 Qh5 Nc6 Nd6 Qff4 Qh6 Qa6 Bf6 Bg2 f1Q e7 f2 e8Q Bb7 Bc4 Qg7 Qg3 Ba8 Bb2 c1Q Bf7 Rh7 Rg1 h1Q Bc3 Qhh6 Qe6 Qd3 Rh8 f1B Nd8 Kb8 Qe4 Qde3 Qg6 Qh3 Rb1 Qeh6 Rh1 Bd3 Re1 Bc6 Re5 Bf5 Rc5 Bd5+ Rc4 Bfe6 Ra1 Qch1 Nc1 Qg1 Nd3 Qc1 Be8 Bg8 Bf7 Qf4 Rb1 Rh4 Ra1 Qfh6 Ra5 Rh5 Qb2 Rf5 Be1 Rf1 Qd2 Qc3+ Ka2 b3+ Ka3 b4+ Ka4 Qc1 Rc3 b2 Rac5 Bb7 Rg5 b1B Nf2 Bf5 Nd3 Bf3 Nb7 Bd5 d8Q+ Bc8 Qda5 Bf5 Nd8 Bfe4 Qh5 Beh7 Qg6 Qb2 Bf2 Rb1 Be1 Qc1 Rb3 Ra1+ Ra3 Rb1 Rc3 Ra1+
2QQ1qBQ/1r1K1N2/rq4qR/2pB3q/1br2p1Q/3N3Q/4k2n/Nr1R2B1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 Qa4 f5 Qc2 g5 Qd1 f4 h3 Bf5 gxf5 Nc6 h4 g4 Bg2 Nd4 Bh3 Ne6 Bf1 Ng5 hxg5 Qd4 Rh4 Qd6 Rh1 Qd8 Kf2 Ke7 b4 Kd6 d4 Kd5 e4+ Kd6 b6 h5 b5 a5 d5 Ke5 d6 c5 f6 a4 b7 a3 b8Q c3 b6 c2 f7 h4 b7 a2 g6 h3 d7+ Bd6 f8Q h2 g7 Qg5 d8Q Rh7 Qe1 Kd4 e5 Ra3 e6 Ra7 e7 Ra4 e8N Qh6 Bg2 Kd3 Nh3 Qe6 Na3 Nf6 g8B Ra6 Be3 c1R Qbc8 Rc4 b8Q Rb7 Nc2 Qf7 Rb1 a1Q Qh6 Qa5 Na1 Qf8 Bd4 Be5 Nd6 Qb5 Nf7 Qb6 Qh4 Bc7 Qe4+ Kd2 Qeh7 Be5 Qh8 Kd3 Qcd7 Bc7 Qbc8 g3+ Ke1 Ng4 Bg1+ Bd6 Kd1 f2 Bd5 g2 Rc1 Be5 Rb1 Kc3 Ke2 f1R Nf2 Bd4 Kf3 Kd2 Ke4 Bc3+ Kf5 Ke2 Nd3 Bb4 Rd1 Re1 Be3 g1Q Bf2 Ne3+ Ke5 Qgg6 Qdh3 Nf1 Rg1 Qh7 Rg6 h1Q Bg1 Nh2 Rc6 Qg2 Ke6 Qh5 Rd6 Rb8 Kd7 Qg3 Rh6 Qgg6 Nde5 Rf1 Rd4 Rfc1 Rd1 Rb1 Nd3 Rb7+
1B3N2/4rbq1/B3Q2N/1N1p2pR/rkN2Qn1/1bpn2qN/6KQ/Br2R3 w - - 0 1 legal: proof: e4 e5 b4 h5 g4 hxg4 a4 f5 exf5 b5 axb5 Nh6 d4 exd4 b6 Bc5 c3 Be7 b5 Bb4 cxb4 Ng8 f4 Ke7 Kf2 Kd6 h4 g5 f6 a5 f7 c5 f8Q+ Ne7 h5 g3+ Kg2 d3 h6 c4 f5 d2 b7 a4 h7 a3 f6 c3 b6 a2 f7 Rg8 h8N Ra6 b5 Kc5 Qg4 d1B Bb2 d5 Rh5 Bc2 Nd2 Qd6 Nc4 Nbc6 b8Q Ne5 b7 N7c6 b6 Nd3 Qe6 Bb3 Re1 a1R Nh3 Rb1 Ba1 Ra4 Qfh6 Qf4 f8N Qd4 Qf4 Qg7 b8N Nce5 b7 Ng4 Nf7 Kb4 Qh8 Bd7 Nh6 Be8 Be2 Bf7 Na6+ Kb5 Nc7+ Kb4 Qh7 Rh8 b8B Rg8 Nd7 Re8 Nb5 Re7 Nf8 Ra8 Kf3 g2 Qh8 g1Q Qh7 Qe3+ Kg2 Ra4 Qh8 Qg8 Qhe5 Qg6 Qh2 Qh7 Qef4 Qg3+ Kh1 Nde5 Nd2+ Nc4 Nd4 Nb6 Ba6 Qg7 Nc4 Nd7 Nb5 Nc5 Rh4 Nd3 Rh5 Qe3 Kg2 Qg3+
N3bNb1/3R1BK1/1Rpq1p2/4k1rQ/3RN3/2Rbn3/1qRpq1Q1/3n2BB w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Qg5 b6 Qe7 b7 Qd8 d4 a5 b5 a4 b6 c6 d5 Ra5 d6 Rb5 cxb5 Qf6 Be3 Be7 Bd2 Bd8 Bc1 Bc7 dxc7 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 d6 g5 f6 g6 h3 g7 h4 Rh2 a3 Be3 a2 Bg2 f3 Nc3 f2 Rc1 f1B Bh1 a1Q Nf3 Nd7 b8R Qb2 b7 Nh6 g8Q+ Nf7 b6 Rh5 Ne5 Qe7 Bg1 Qe8 Qg2 Rf5 Ng6 Nde5 e3 Qd8 Qh5 Bd7 c8N Nh6 Ra8 Qf8 b8R Nd3 b7 Ng4 Nb6 Be8 Ra7 Qe7 Rd8 d5+ Kd4 Qd6 b8R Be2 e4 Ndf2 e5 Nd1 Rad7 Nge3 Na8 Bd3 Rb4 Qe2 Ne4 Qb2+ Rc3 Qe2 Qgg5 Qb2 Rg2 h2 Rb6 h3 Qg3 Qb8 Rc2 Qd6 Bf3 h1Q Qg2 Qc7 Kc5 h2 Kd4 Qb8 Kc5 Qd6+ Kd4 Rg5 Nf8+ Kf5 e6 Kf4 e7 Rf5 Qf2 Qg2 Qd2 Qe2 Bh1 Bf7 e8B Bg8 Bf3 h1B Bg6 Bg2 Bf7 Bh3 Bh1 Bg4 Qh7 Bh5 Qh8 Bg6 Qh5 Qg4 Qg2 Qe2 Be6 Be8 Bf7 Qe5+ Kc5 Qd4+ Kd6 Qc5+ Ke6 d4 Nh7 Qd5+ Ke7 Ke5 Kf8 Qd6+ Kg7 Bc4 Qh4 d3 Nf8 d2 Qhg5 Bd3 Qh5 Qda3 Rd4 Qd6 Rd7 Rg5+
k1qR1r2/6bB/1pp2Q2/N3R1qq/2QBN3/bNpBR1n1/3n2R1/2bK1R2 w - - 0 1 legal: proof: c4 f5 e4 d5 exf5 dxc4 b4 a5 f4 axb4 g4 Nd7 f6 Nb8 f7+ Kd7 f5 g5 h3 Kc6 f6 Bf5 Qb3 Kd7 gxf5 g4 Qd1 g3 Bd3 Ra3 Bf1 Rd3 Qc2 Rd4 Qd1 Rg4 hxg4 Kc6 Qa4+ Kd6 Qd1 Kd7 d4 Kc8 a4 e5 d5 h5 a5 e4 a6 b3 a7 g2 a8R b2 d6 c3 g5 e3 g6 e2 g7 c6 d7+ Kc7 Nh3 g1B Ng5 h4 Nd2 b1Q R8a5 h3 Rh2 b6 Nge4 Kb7 Nb3 Rh6 Rg2 h2 Qd5 h1Q Qc4 Rh4 Re5 Qd3 Be3 Qd5 Bd4 Nh6 g8B Bg7 f8Q Na6 f7 Qc8 d8N+ Ka8 f6 Nf5 Nb7 Rh8 Bh7 Qh5 N7a5 Ng3 Qd8 Qg5 f8R Nc5 Rfe8 Rf8 f7 Be3 Qf6 Bc1 Rd8 Ba3 Rd1 Qh5 Rd3 Qg5 Rf3 Qh5 Re3 Qg5 Kf2 e1B+ Kf3 Bd2 Bd3 Bdc1 Kf2 Nb7 Ke1 Nd6 Kd1 Qb5 Qce6 Nc4 Qg4 Rh8 f8R Nd2 Qge6 Qc5 Qc4 Qd5 Qh6 Qb5 Rf1 Rf8 Qf6 Qd5 Ref5 Qf7 Re5 Qfh5+
3Q2N1/1Qn1R1p1/1p2nRr1/1Rq4b/kB3n2/3B1Bn1/p3Q1b1/1QKb1Q1N w - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 d5 cxd5 hxg4 a5 b6 a6 Nd7 Ra2 Rb8 Ra4 Rb7 axb7 a5 Ra1 Nb8 Nc3 a4 Nb1 Bb4 b3 Ba5 b4 Qd6 bxa5 Qd8 h4 Kd7 e4 c5 d4 f5 Kd2 g3 a6 c4 a7 f3 a8B f4 e5 g2 h5 f2 d6 Kc6 e6 Kb5 h6 f3 d5 a3 h7 a2 d7 Qh4 d8Q Qh5 e7 Bg4 e8R Bd7 d6 Ne7 Bd3 f1B Ne2 g1N Ba3 f2 Kc1 Nd5 Nbc3+ Ka5 Qe7 Nf4 Ng3 Ne6 Nce4 c3 Nf6 c2 Rb1 Bh3 Bb4+ Ka4 Ng8 Na6 b8Q f1B Qb7 Bfg2 Qf1 Bg4 Rh2 Bdc6 d7 Qc5 d8Q Bcf3 Rh6 Bd1 Rf6 Bh5 Nh1 Nh3 Rb2 Nac7 Rb3 Nd4 Qee2 Nf4 Re7 Nde6 Ba3 Qe5 Rb5 Qg5 Bb4 Qc5 Nh6 Rf8 h8Q Re8 Ng8 Rf8 Rf5 Rf6 Qh7 Rh6 Rf6 Rg6 Qbc8 Kb3 Bf3 Ka4 Kb2 c1N Qb7 Rg4 Bc4 Rg3 Qb1 Rg5 Bd3 Rg6 Qe3 Nce2 Qd2 Ng3 Qde2 Qd6 Kc1 Qc5+
bB2NqNQ/4q3/kp1BBQ2/p2q1n2/1p1R4/RK1nNN2/3b2Nb/6qQ w - - 0 1 legal: proof: e4 f5 exf5 g5 b4 c5 h4 gxh4 a4 cxb4 a5 b6 a6 Nc6 Na3 Rb8 Nb1 Rb7 axb7 Nb8 Bb2 a6 Bc1 a5 d4 h5 c4 Bh6 c5 Bg7 d5 Rh6 Na3 Rd6 Nb1 Rc6 dxc6 Bf8 Kd2 e5 Kc2 d5 f4 e4 g4 d4 c7 Kd7 f6 Kc6 f7 e3 f5 h3 f6 h4 g5 d3+ Kb3 Kb5 c6 h2 g6 h3 g7 e2 Nd2 e1B Nc4 d2 Nf3 Ka6 Ne3+ Ka7 Bc4 Bf2 Be6 Qd6 Ra3 Ne7 g8N Bh6 f8N Bg1 f7 Nf5 Ng6 Qf8 Ngh4 Nd7 b8B+ Ka6 Nhg2 Bb7 c8Q Ne5 c7 Nd3 Qe8 Be4 c8N Ba8 Nd6 Qe7 f8Q Bg5 Qc2 d1Q Qf6 Qf1 Qb1 Bf4 Qh5 Bh6 Ne8 Qf2 Nd5 Bd2 Bb2 Qfc5 B2e5 Qf8 Qb2 Qce7 Qfh8 Bf2 Re1 h1Q Re4 h2 Bed6 Qg1 Nde3 h1Q Qbf6 Bg3 Q5h7 Qh5 Rd4 Qhf7 Qh1 Bh2 Nfe1 Qb7 Nf3 Qf7e7 Qf7 Qc6 Qff6 Qd5+
1Q1r3Q/1Q3npn/Nr1R1p2/1N3q1n/1BK2N2/2Nnp1bN/1p1k2B1/2R1R3 w - - 0 1 legal: proof: f4 b5 e4 d5 exd5 h5 g4 Kd7 d6 Ke6 d4 Kf6 f5 a5 b4 axb4 d5 Ra6 c4 Nc6 gxh5 Bd7 c5 Nb8 c6 Ra3 cxd7 Rf3 Be2 Rxf5 Bf1 Rf2 h4 Ke5 a4 Ke4 a5 c5 a6 e5 h6 b3 h7 b2 a7 c4 h5 c3 a8N c2 h6 b4 Qf3+ Kd4 Nc7 e4 Na6 b3 Bd2 c1N Nh3 e3 Bg2 Kd3 Bb4 Qa5 d8Q Kc2 d7 Nc6 d6 Ne5 Qb7 Nf6 Qdb8 Nh5 d8N Rf6 d7 Rb6 Nc3 b1N Nc6 f6 d8R b2 Na7 Na2 Ke2 Bd6 Re1 Nd2 Rad1 Re8 h8N Ndf3 h7 Ng5 Ng6 Nef7 h8Q Bg3 Ngf4 Qf5 Nab5 Nh7 R8d6 Rd8 Ne4 Kb3 Kd3 Nc1+ Kd4 Kc2 Nec3 Nd3 Rc1+ Kd2 Kc4 Qc8+ Kd5 Qd7 Kc4 Qf5
5n2/pQN2bQ1/bR1bpQNq/pR2n1Q1/3R1B2/1p6/2Bb3B/krQ1K3 w - - 0 1 legal: proof: e4 h5 b4 f5 exf5 h4 d4 h3 a4 b6 d5 Nf6 a5 Ng8 gxh3 Na6 h4 Rb8 h5 bxa5 c4 Rb6 b5 Rc6 b6 cxb6 dxc6 b5 c5 b4 f4 Kf7 h4 Kf6 h6 d5 h7 g5 c7 g4 c6 e6 h5 g3 h6 b3 Nh3 d4 Nc3 g2 Bd3 g1B Bc2 d3 Ra4 Nb4 Qh5 Bg7 Nb5 Qe8 Qg5+ Kf7 f6 Bc5 f5 Qd7 Bf4 Na2 Rd4 Ba6 c8Q Nc1 c7 Bd6 Qb7 Ne7 c8Q Ng6 Nc7 Nf8 Rf1 Rg8 h8Q Qe8 h7 Bh6 Rf3 Qc6 Rf1 Qh1 Bh2 Rg6 Nf4 Rg8 Ng6 d2+ Kf2 d1B Ke1 Bh5 Bf4 Qh2 Rf3 Na2 Rc3 Qh3 Rc5 Nb4 Rb5 Nc6 Bh2 Ne5 Rb6 Nfd7 Rb5 Rg7 Qhd8 Nf8 h8B Kg8 f7+ Kh7 Qd2 Be3 f6 Kh6 Qc1 Kg5 Qf3 Rg8 Qcb7 Qh4+ Qf2 Qf4 Bg7 Rh8 Bh6+ Kg4 Rd3 Kf5 Qg3 Qh4 Bf4 Qg5 Qgg2 Qh6 Rb6 Nh7 Qg8 Nf8 Qg7 Rg8 Qb8 Rh8 Qg5+ Ke4 Rd1+ Bd3 Qb7+ Kd4 Rb5 Kc3 Rb6 Ba6 Rd4 Nh7 f8R Rg8 Ra8 Nf8 f7 Rh8 Qd2+ Kb2 Rb8 Ka1 Rb5 Nh7 f8Q Rg8 Nh4 Bf7 Ng6 Rh8 Qfe7 Rc8 Qef6 Nf8 Ne8 Rc4 Nc7 Ra4 Rb6 Ra2 Rb5 Rb2 Qc1+ Rb1 Qh1 Nh7 R8b6 Nf8 Qb7 Bd2+
1B2K3/1q4k1/3pQ2p/1RNB2BQ/Qb2R1N1/1RnBp3/qqq1p1b1/2B3n1 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Ng8 f6 Ba6 Ra4 Bb7 Ra1 Bc8 h3 g5 Bd3 a5 Be2 Ra6 Bf1 Re6 Ne2 Re5 Ng1 Rf5 gxf5 g4 h4 h6 Ra3 Rh7 Ra2 Rg7 Ra1 Rg5 hxg5 Ba6 Ra2 Bb7 Ra1 Bc8 Kf2 Kf7 Kg3 e5 Kh4 e3 Kh5 a4 b4 d3 c4 d6 c5 g3 g6+ Ke8 b6 a3 f7+ Ke7 f6+ Ke6 c6 a2 g7 e2 Kg6 g2 b5 e4 c7 Bd7 c8Q Ke5 b7 Qb6 Rh5+ Ke6 Nc3 Qc6 b6 Be7 f8Q Qb5 f7 Bf6 Nh3 Qb1 Rb5 Qb2 Na4 Bc3 Nf2 g1Q+ Ng4 Nc6 b8B Nd4 b7 Nf6 g8B Qg2 Rb3 Nd5 Qfe8+ Ne7+ Kg7 Bb4 Kf8 Nf3 Nc5+ Kf5 Qc6 Kg6 Qa4 Bc6 Qc8 Bd5 Ke8 Kg7 Qe6 Ng1 Rb1 a1Q f8B+ Kh8 Bf7 Qaa2 Bg7+ Kh7 Bf6 Qh1 Bfg5 Kg7 Qe1 Qg2 Qh4 Qf3 Qh5 e3 Bg2 d2 Bg6 d1Q Bd3 Qdc2 Bh1 Be1 Rb4 Bc3 Re4 Bb4 Bg2 Qd4 Rb3 Qdb2 Bh1 Qg2 Bc7 Qf3 b8R Bb7 Bg2 Nd5 Bh1 Ba8 Rb5 Nc3 Bb8 Qg2 Rf4 Qb7 Bd5 Qa7 B5c4 Bg2 Re4 Qc7 Bd5 Qb7
1bnNr1Rb/2R2R2/1N4pB/pk4K1/5QbQ/1q1p1Q2/QQBp1p1p/5B2 w - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 f5 a4 b5 d4 cxd4 Qd3 bxa4 Bf4 a5 Be3 f4 Qd1 Ra7 Bc1 Rb7 h4 Nc6 h5 Nce7 h6 g6 Nd2 Nf5 gxf5 Rb6 Nb1 Re6 Nc3 Re7 Nb1 Rg7 hxg7 Qg5 Bg2 Qe7 Bf1 Qd8 Kd2 d5 b4 Kd7 c4 Kc6 e4 h5 b5+ Kb6 f6 f3 c5+ Ka7 f7 a3 b6+ Kb7 e6 Kc6 e7 d3 Ke3 h4 Kf4 d4 e8B+ Bd7 b7 a2 b8Q f2 e5 h3 e6 Nh6 g8Q Qc8 e7 Qa6 Nf3 Qc8 Nc3 Qa6 Kg5 Qb7 Nd5 Qb5 Nb6 Qa6 Ne5+ Kb5 c6 Bg7 f8Q Bc8 c7+ Bd7 c8Q Nf5 Qd8 Rh6 Qf3 Qa8 Nc6 Nd6 Q8f4 Rh8 Bd2 Nc4 Rc1 a1B Qb7 Nd6 Qa2 Rg8 Bf7 Qb8 e8R Bh8 Bb3 Bb2 Bc2 Nc8 Qdf6 Bg4 Nd8 Ba3 Re7 Re8 Rf7 Bd6 Qbe4 Bf5 Qh4 Bg4 Qef4 Re2 Be3 d2 Qg7 d3 Qgb2+ Ka6 Bd4 Re4 Bg7 Re8 Bh6 Bde5 Bb1 Qb7 Rcc7 Qd5 Bc2 Qb3 Bg2 Kb5 Rc1 h2 Bf1 Bd6 Re1 Rg8 Re8 Bde5 Rc4 Bb8 Rcc7 Rg7 Rg8 Rh7 Rff8 Re7 Rf7 Re8
2r2nn1/nR2R1K1/N7/2N2n1Q/BBr2RRQ/bn1B3N/qR6/k3rqqb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 h3 b6 h2 b7 c4 g6 f3 d6 h4 d7 f2 g7 c3 d5 h3 d6 f4 Nd2 a4 Qh5 a3 Ra2 f3 Rb2 a2 Bd3 Ka3 b4 a1N b5 f1Q b6 f2 Nb3 c2 Bd2 c1N Nc5 Ra4 Ba5 Qc7 d8Q Ncb3 Qdh4 Qf7 d7 Rc4 d8R Nc2 Re8 Ncd4 Re7 Nb5 Be1 Na7 Ba5 Nf6 g8R Nbd7+ Kf5 Qd1 b8N Bb7 e5 f1Q+ Kg5 Qd5 Kg6 Bc6 Rgg7 Ng8 b7 Qb1 e6 Qd4 Q4g5 Qa2 Nba6 Qe3 b8R Ba8 Ne2 Qeg1 Nf4 Bg2 Rb7 Bc6 Ref7 Be7 Rh7 Nf8+ Kg7 Bd6 e7 Be4 Re2 Bf3 Re4 Kb2 e8B Ka1 Ba4 Bg2 Qgh4 Be7 Nce6 Ba3 Bb4 Qc1 Re2 Ne7 Rb8 Nfg6 Rd2 Qgd1 Rh6 Rhc8 Bc5 Nf8 Rb2 Ng8 Rg1 h1N Re7 h2 Rf6 Ng3 Nh3 h1R Rf4 Qe1 Rbb7 Nf5+ Kh8 Bf3 Rgg4 Rf1 Bd6 Bh1 Bb4 Qce3 Nec5 Qg1 Qg3 Qe2 Qf2 Re1 Qfh4 Nd7 Kh7 Qef1 Kg6 Nf8+ Kf7 Nfh6+ Kg7 Nf5+
1KnR2Q1/r2R3R/kB6/1nRB2BN/N4rqr/1rR1bNq1/2b4r/2b3Qn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 Kc7 e4 Kb7 d4 a5 g4 h3 g5 h2 b6 a4 d6 h4 d7 c4 b5 f3 g6 c3 d5 c2 d6 a3 g7 a2 Bg5 c1B Bg2 h3 Nc3 f2 Na4 f1R Nf3 Qc7 d8B Qc4 d7 Ne7 Kd6 f4 g8Q Nbc6 e5 Rh4 e6 Ra7 Rb1 a1Q Rb3 Be3 Rc3 Nd4 Qc1 Rf2 Qg1 Rb2 Bc7 Bh6 d8R Qe1 Rd7 Rb3 Bd8+ Kb8 b7 Qg3 Bb6 Qe2 Bf1 Qeg2 Bc4 Qg4 Bd5 Q2g3 Ne5 f3 Rc5 Nec6 e7 f2 e8N f1R Nf6 Rf4 Nh5 Ne7 Nf3 Bc1 Qg2 Be3 Rhc1 h1R Qg1 h2 R1c3 Ra5 Bd8 Ka7 Kc7 Bc1 b6+ Ka6 b8R Be3 Rb7 Nb5+ Kb8 Bc1 Rd6 Bf5 Rdd7 Nc8 Rh7 Bc2 Rbd7 Bg7 b7 Bd4 Bb6 Bde3 Qf2 Rg1 Qe1 Rg2 Qg1 h1N Ka8 Rgh2 b8R Ne7 Rbd8 Nc8 Nb2 Raa4 Kb8 Rae4 Na4 Re7 Rd6 Rc7 R6d7 Ra7
2QK1kB1/RbQ4Q/N4b1r/R5nn/3rq3/1QN2q2/qRrB1rbQ/nB6 w - - 0 1 illegal: No possible last move
bQnQ3r/2NB2qn/N2q1r2/2KnQrB1/8/1B1R1b1k/1Q2n1Rb/q2QR3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 Ke6 b6 h3 e5 h2 d7 c4 g5 a4 b7 f3 Ke3 a3 b5 c3 b6 f4+ Ke4 c2 g6 f2 g7 f3 Bg5 c1N Qe2 a2 Qb2 h4 Nd2 h3 Bg2 f1N Ne2 f2 Nc3 Qe7 d8Q Ne2 Re1 a1Q Nd5 Nd7 b8Q Ne3 b7 f1R Nb3 Rf6 Rd1 Ra5 Rhe1 h1Q Rd3 h2 Nc5+ Kf7 e6+ Kg6 Qd6 Kh5 b8Q Kg4 Qe5 Qg1 Nc7 h1B d5 Nb6 d6 Ned5 d7 Bb7 N5a6 Qf7 e7 Nc8 e8B Qe6 Bf7 Bd6 Be8 Ba8 Bf7 Nge7 g8R Ng6 Bf3+ Kh3 Rg7 Qg2 Be8 Nec3+ Kd4 Nf8 Bd1+ Qg3 Rg6 Bf3 Bb3 Nh7 Rg7 Bc5+ Kc4 Bg1 Rg8 Bh2 Rg6 Ra4+ Kc5 Ne2 Bc1 Ncb6 Rd4 Bh1 Qe7 Bf3 d8Q Nb4 Q7d6 Nc8 Bd7 Qg2 Rdd1 Qg5 Qd3 Nd5 Be3 Qh6 Rg2 Qg7 Bg5 Raf4 Qdb1 R4f5 Rd3 Rff8 Q1c2 R8f6 Qd1 Qd6+
b2n1R2/B1b1B3/bN2B2N/1K2n2q/2BR1q2/QBk1NR1Q/4r3/br1r1n1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 f5 g4 c6 e4 h3 b6 c5+ Kb5 a5 b4 a4 g5 h2 b7 a3 e5+ Ke7 g6 a2 e6 Kd6 e7 c4 e8B c3 g7 f3 Be3 h4 Ne2 c2 Nd2 c1R Nc3 f2 Bf7 h3 Qb3 f4 Bc4 f1B Be6 f3 Na4 f2 Nb6 Qh4 Qa3 Bd3 Rd1 h1N Nf1 Nf6 g8B Nc6 b8R h2 Rb1 a1B Rb3 Rb1 Bg5 Bg7 Ne3 Bb7 Rf8 Ng4 Be7+ Kc7 Rd2 f1Q Rc3 Rd8 d6+ Kb8 d7 Kc7 d5 Qf4 Rb3 Ba8 d6+ Kb7 Rd1 Nge5 Rc3 Re8 d8Q Ng3 d7 h1Q Rb3 Be2 Rd4 Qh5 Rbd3 Nf1 Bgf7 Na5 Qc8+ Ka7 d8N Rd1 Ka4 Nb7 b5 Rh6 Bg8 Rb1 Nf7 Nd8 Bb3 Rf6 Bec4 Rd6 Nh6 Bf6 Bce6 Bh4 Bec4 Bg3 Qh3 Rd5 Rc3 Rd7 Bge6 Rd6 Re4 Rdd1 Rd4 Kb7 Nd7 Kc7 b6+ Kc6 b7 Bh2 b8B Bg3 Bg5 Bh2 Nb6 Re7 Qb2 Kc5 Ba7 Re8 Rd2 Bd3 Be7+ Kd4 Qa3 Bg3 Kb5 Bh2 Rcc2 Bg3 Ra2 Kc3 Rab2 Be2 Rd4 Bd3 Rf2 Be2 Rf3 Bh2 Kc5 Bg3 Bcd5 Ba6 Bdc4 Nef7+ Bed5 Nd6 Bh4 N6f7 Nef5+ Qe3 Bg5 Re4 Be6 Bc7 Bf6 Ne5 Be7 B6b7 Kb5 Bc8 Bd3 Qf4 Bdc4+ Re3 Bd3 Re2 Ne3 Bcb7 Bdc4 Ba6+
QNNRBrqB/1b1q2q1/4NQ1N/nk1b4/2r2R1r/1qB3b1/1K1R1N2/2n3n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 b4 a5 e4 c5 g4 f3 g5 h3 b6 c4 d6 Kc6 e5 f2 g6 a4 b7 a3 g7 h4 d5+ Kb5 d7 a2 e6 f4 d6 h2 e7 f3 e8Q h3 Qd4 Nh6 g8N Nf7 Kb2 Ra4 Nh6 Nc6 b8N Na5 Qf6 Ng5 Nd2 Bb7 Ne4 Qb6 Bg2 f1Q Bd2 f2 Bc3 Qd3 Rf1 Nf3 d8N+ Qc6 d7 Bd6 Qef8 Bg3 Ne6 Qd1 d8R Qcd7 Qg8 Q1d5 Rd1 f1Q Rd2 Qd1 Qe8 Rf8 Nd6+ Kb6 Nc8+ Kb5 Bf1 Qg5 Bd3 Qg8 Bg6 Bd5 Ne2 Ng1 N2f4 Qf3 Nd3 Qe3 Nf2 a1Q+ Kc2 Qb6 Bf7 Qb7 Bh5 Qd1+ Kb2 Qdg4 Bf7 Q4g7 Bh5 Nf3 Re1 h1B Re4 h2 Rf4 Bg2 Bg6 h1R Bf7 Rh4 Bg6 Ra1 Bf7 Rc1 Bg6 Ka4 b5 Ng1 b6 Kb5 Bh5 Qa6 b7 Qb6 Na6 Bh1 b8B Bb7 Bbe5 Bhd5 Qeg6 Qe3 Qe4 Qd3 Be8 Qe3 Bb4 Qd3 Nb8 c3+ Ka3 c2+ Kb2 Re1 Bbc3 c1N Qe3 Re2 Qa7 Re4 Qa8 Rc4 Qe7 Qgg6 Bh8 Q6g7 Qf6 Qf3 Ng5 Qd1 Ne6 Qb3+
nB1Q4/1qQBN1B1/3Rbr1N/1bN3n1/3q2Kn/2brbR1B/k1bb2B1/2R5 w - - 0 1 illegal: No possible last move
K4rQ1/n3N1nR/1R1B1R1N/1n4k1/Q1N5/BNb5/nN2br1r/rn1bqB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 c5 d4 a5 b4 c4 b6 f3 b5 f2 d6 h3 Kd5 h4 e4 c3 b7 c2 b6 h2 d7 h3 Ne2 a4 Na3 Qe8 d8N Bb4 Nc6 Na6 b8R Bc3 Nc4 a3 b7 a2 Ba3 c1N e5+ Kg5 e6 f5 e7 f4 Nb2 f3 Qa4 Nc7+ Kc5 Bd7 Kb6 Nb5 d5 Be6 d6 Bb3 d7 Bd1 Rb1 a1R d8N Na2 Nc1 Rh7 Na5 Rf7 Nac4 Rf4 Nb3 Rf8 Bg2 f1B Nc6 Bfe2 Bf1 f2 Rd8 Ra7 b8B Rd7 Rc8 Rd2 Kb7 Rc2 Bbd6 Rd2 Rg1 h1N Ka8 Ng3 Rh1 h2 Rb8 Nh5 Rd8 Kg6 g5 Ng7 Rc8 Kf5 g6 Kg5 Rd8 Nh6 Rb8 Nf7 Rc1 Nd8 Rb6 Qd7 e8N Qe6 Ne7 Nc6 Rb1 Nca7 Rc6 Nh5 g7 Qe4 g8Q+ Ng7 Kb7 Qe3 Nf6 Rc2 Ra6 Qd2 Rc6 Qe1 Ng4 Rd2 Nh6 Rc2 Bg2 f1N Bh3 Nd2 Bf1 Bh5 Rb6 Bde2 Rd1 Nb1 Rd3 Bd1 Rf3 Rf2 Rf6 Bhg4 Rg1 h1R Rg2 Nc8 Rh2 Bge2 Rh4 Rhh2 Ka8 Rfg2 Nhf5 Rf2 Rh7 Nd4 Nh6 Nb5 Be5 Nca7+ Bb8 Rf7 Bbd6 Rf8+
2q1q3/1Q4N1/1NBqNb2/2nR3R/1b3K2/Rrnq3Q/3k1bbr/Bq3QQQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 d4 h5 b4 a5 g4 f5 e4 c5 b6 c4 g5 c3 b7 h3 b5 c2 b6 a4 g6 h2 g7 h4 Ra3 h3 Rc3 a3 Qd3 a2 Ra3 a1B Ne2 Na6 Bb2 c1B Nd2 Qe8 Bg2 Nf6 g8Q Nc5 b8R Ra5 b7 Rb5 Rba8 Bd7 Rd8 Rb3 Ng3 Rh6 Nh5 Rh7 Ng7 Be7 Rda8 Bc6 R8a5 Bf8 Rd1 h1Q Bc3 h2 Qf1 Qg1 Qh8 h1Q b8Q+ Ke7 e5 Qgh2 e6 Nfe4 d6+ Kf6 d7 Kg5 Nc4 Be3 d8N Bf2 e7 Qh6 d5 Q1h3+ Ke2 Qd6 Qb7 Rh5 Bd4 Nc3+ Kd2 f3 Nde6+ Kg4 Nb6 f4 Qh7 Bb2 Qh1 Kg3 Qd3 Qf5 Qdf1 Rh2 Be5 Qb1 Bf6 Qc8 e8Q Qg6 Qed7 Qge8 Re1 Ba1 Re5 Bb2 Rh5 Be7 R3a4 Ba3 Bd4 Bb4 Ra3 Bf6 Be5 Bg1 Rb5 f2 Bd4 f3 Ke3 Qdc7 d6 Kg4 Qe1 f1Q+ Qf2 Qc4 Qf7 Be4 d7 Qd6 d8Q Qf1 Qdd7 Qb1 Kd2 Bd5 Qe1 f2 Ke3 f1Q+ Qf2 Bc4 Bc6 Bd5 Rba5 Bg2 Rd5 Qfd1 Be5 Kh3 Kf4 Qdd3 Qe1 Bf2 Qg6 Bf1 Qgg1 Bg2 Qef1 N3e4 Kf5 Kh4 Bb2 Kg3 Ba1 Kf3 Rb5 Ke3 Kg4 Na6 Rh5 Kd2 Rbd5 Nac5 Kf5 Qdf8 Kf4 Nc3 Nd4 B2h4 Qh3 Bf2 Nde6 Qd6+
B5Nb/B2Q4/nK1Qb3/2RBr3/2q3k1/q1BRB1bq/2qR2nq/2QbN2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 Ke6 b6 h3 e5 h2 d7 c4 g5 a4 b7 f3 Ke3 a3 d5+ Ke7 Kd4 c3 Kc5 h4 b5 c2 b6 f4 d6+ Ke6 g6 Kf5 e6 h3 g7 f2 e7 a2 e8Q f3 Be3 c1Q+ Nc3 Nh6 g8B Kg4 Bd5 Qc2 Qc1 Qe7 d8Q Nf5 Bg2 f1Q Qed7 f2 Nf3 Na6+ Kc6 Bg7 b8B Be5 b7 Bg3 Ne1 Qc4+ Kb6 f1B Ba7 Be2 b8B Bd1 Ne4 Rh6 Rf1 h1Q Rf2 h2 Rd2 Qhf1 Rb1 h1Q Rb5 a1B Rc5 Bh8 Rd3 Qh2 Nf6+ Kh4 Bge4 Qfh3 Ng8 Kg4 Qf8 Re6 Bc7 Nh4 Bd8 Qf7 Bf6 Qe7 Bc3 Ng2 Qfd8 Bb7 Q8c7 Re8 Qcd8 Bc8 Ba8 Rf8 Bed5 Rf1 Qb5 Qe8 Rd2 Q4e4 Bc4 Re7 d7 Re5 Qf6 Rg1 d8R Rh1 R8d3 Bd7 Qe7 Be6 Bcd5 Qc4 Qd6 Qd7 Qbc6 Qe8 Qc8 Qea4 Qcd7 Qa3
2bq3k/1r5b/r4KBQ/B1bR2nB/q1N1bnB1/3R1qQ1/b1q1QNB1/4R3 w - - 0 1 illegal: No possible last move
R3bNQ1/b3n1N1/2q1n1Q1/q1QRNB2/1r1bNN1B/r3rr2/2r2b2/R2K1k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 a5 g6 h5 b6 f3 g7 a4 b7 f2+ Ke2 f4 b5 a3 b6 f3+ Kd2 a2 Be2 f1R Bd3 h3 Ba3 h4 Rh2 f2 Qe1 Bd7 Nf3 Na6 b8R Ne7 g8Q Nc7 b7 Be8 Rg2 h2 Qc1 h1R Rg5 h3 Nc3 h2 Qg6+ Ne6 Ne5 Re1 Rc8 f1R b8N Rhg1 Nbd7 h1Q Bb4 Ra6 Ra8 Re3 Bb1 Bh6 Nf8 Rg4 Ba5 c4 Rf5 Qb8 Bd8 Rff3 Qg1 Rh7 Kd1 Qb5 Rg5 Qa5 Rh5 Ng8 Bh4 Rc7 Bd3 Rc5 Rg5 Ne7 Bc2 Kc7 d6+ Kb6 d5 Rc6 d7 Kc5 d8N Kd4 d6 Ra7 Nb1 c3 d7 Rc4 Rf5 Rb4 Nd2 Rg2 Rh5 Bf4 Rg5 Bg3 Rf5 Bf2 Bb1 Rd3 Rh5 Ke3 Rf5 Nd4 Nde6 Ra6 Nf4 Ne6 d8Q c2+ Kc1 Ra3 Qc7 Rd6 Qc5+ Rdd4 Ned7 Rh2 e5 Qg2 Ne4 Qh1 Nd5+ Ke2 Rg5 Rfe3 Qg8 Rdd3 Nf4+ Kf3 Qg6 Rdb3 Kd2 c1B+ Kd1 Bb2 Rf5 Bd4 Bd3 Rc3 Rg5 Rc2 Rh5 Rh3 Qg8 Ng7 e6 Qg2 Rd5 Qg6 Qd6 Ba7 Qc5 Qf6 Qg6 Rg3 Nh3 Kg2 Ne5 Rf3 Nf4+ Kg1 Rb1 a1B Rc1 Bad4 Ra1 Nef5 e7 Qc6 Qb5 Ne6 Qc5 Bd7 e8N Ne7 Ng7 Be8 Nc3 Re3 Bf5 Kf1 Ne4 Rgf3
R3Q1NQ/b1q2nBb/1kB5/4rRQ1/3r1B2/2nr1q1Q/rb3QN1/4KbRn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 g4 c5 e4 Kc7 b4 h5 g5 f5 e5 a5 e6 c4 g6 f3 e7 a4 e8R c3 d6+ Kb6 d7 f4 d5 h3 g7 c2 d6 a3 Nc3 a2 Qe2 h2 Nh3 h4 Ne4 Ra3 Bg2 Qc7 d8Q Nc6 d7 Bc5 Qf2 Rh5 Rf8 Re5 Qg5 Nge7 g8Q Nd5 d8B Bf5 Qe6 Nc3 Bf6 Bh7 Rg1 h1Q Bg7 Ra4 Qeg4 Nd8 Rf5 Nf7 Be3 c1B Nf6 Bb2 Ng8 Ra8 Q4h5 Rd8 Qhg4 Rd3 Q4h5 Kb7 b6 Kc6 b7 Ba7 b8Q Rd4 Rd1 a1R Qe8+ Kb6 b5 Ra2 Rb1 Kb7 b6 Ka6 b7 Kb6 Bf1 Qg2 Ra1 Qg3 Bg2 Qg4 Qg3 f2+ Kf1 Qf3 b8Q+ Qfb7 Bc1 Rd3 Bc6 Rd4 Kg2 f1B+ Kf2 f3 Nf4 h3 Ng2 h2 Qhh3 Rd3 Qbd8 Rd4 Be3 h1N+ Ke1 Qa8 Qf2 Qb7 Qe2 Qa8 Bf4 Rd3 Rd1 Rd4 Rd3 f2+ Kd2 Ng3 Qed7 Na4 Be4 Nh1 Ne7 Bb8 Qh8 Qd5 Qee3 Be2 Qde8 f1R Ng8 Rf3 Ke1 Bf1 Ra3 Nc3 Ra8 Ba7 Qf2 Rd3 Rc8 Ne2 Bf3 Qe4 Ra8 Qe3 Bd5 Qf3 Bc6 Nc3+
qn1N1K2/2B2q2/1N5n/3Qb3/RQ2Q2q/2q2r2/bRb1Nrn1/kBb1Q1QR w - - 0 1 illegal: No possible last move, all moves rejected
2r1Kn1Q/kNrnRn2/Bb6/2N3Q1/rR4b1/n1bqBQ2/1Qq3N1/1Q1bR3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8N h3 g5 c2 d5 a3 g6 a2 g7 Ne7 g8Q Ra4 d6 Nec6 Ng7 Qc7 d8Q Nd7 Qg5 Nd8 Be3 c1R Qgb3 Qc2 Nc3 Ka8 Rb1 a1B Ne4 Bc3 b7+ Kb8 Nc5 Ka7 b8R Be7 Nh5 Nf8 d7 Bef6 Rb6 Bfd4 Re6 Rh7 Nb7 Bb6 Ne2 Re7 Rg1 h1N Qd4 h2 Neg3 Nf2 Ne4 Ng4 Nec5 Nf6 Qd3 Rg7 Qb2 Rg8 Qe2 h1B+ Qeg2 Rg7 Re7 Rf7 Be2 Rg7 Re1 Rh7 Kf2 f3 Kg3 f4+ Kh4 f2 Qf3 f1N Bd3 Nd2 Be2 Nde6 d8Q Nc4 Qd4 N6d7 Qh8 Na3 Kg4 Qd2 Kf5 Nd8 Bc4 Qc2+ Bd3 Ne5+ Kf6 Bg4 Bc4 Rh6+ Kg7 Rc6 Kg8 Ned7 Bd3 Nde6 Kf7 Nd8+ Ke8 Bg2 Bc4 Bf1 Bd3 Be2 Bc4 Bd1 Be2 Bba5 Bf1 Rc8 b6+ Ka8 Ba6 Rc7 Qe2 f3 Nf4 f2 Qf3 f1Q Ng2 Kb8 Qa1 Qfd3 Rb4 Ka8 Qb1 Kb8 Nd6 Rc8 b7 Bb6 Qf2 Kc7 b8Q+ Kc6 Qa8+ Kc7 Qc6+ Kb8 Qcf3 Ka7 Ndb7 Qce2 Rh1 Ba1 Ne4 R1c7 Nec5 Bc3 Re1 Qb2 Qfc2 Qa2 Qcc1 Qac2 Qcb2 Nf7+
Q1bb3k/4KRb1/1QR1Q3/BB1N1r2/B2qnbn1/4qq2/rR1N4/RR3nq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 Kf3 f5 g4 Kf7 d4 Kg7 b4 a5 e4 c5 e5 a4 d6 c4 d7 h3 b6 a3 b5 h4 g5 c3 g6 h2 e6 h3 b7 c2 e7 a2 e8B Qf6 d8R Bd7 b6 Na6 b8Q Bc8 b7 Nc5 d5 Qd4 d6 Nf6 d7 Rh5 Qe2 Kh8 Bd2 c1B Ba5 Bd6 Qe6 Nce4 Ne2 Ng4 Nd2 Bc7 Nc3 Rg5 Rb1 a1B Nd5 Bab2 Rg1 Ra7 Qa8 h1Q+ Bg2 h2 b8R Bc3 R8b2 Rh5 Rd1 Qe1 Bf1 Rg5 Bb5 Qee3+ Kg2 f3+ Kh3 f2+ Kh4 f1Q g7+ Kh7 g8R f4 Re1 f3 Rf8 f2 Rf7+ Kh8 Ba4 Rf5 Ra1 Ba6 Rc8 Qg1 d8Q f1N Qdd6 Bb7 Qb6 Ra6 Nb3 B1d2 Reb1 Bc1 Nd2 Ra7 Rd8 Bc8 Rd6 Ra6 Beb5 Ra7 Nf3 B1d2 Rc6 h1Q+ Nh2 Qhg2 Nf3 Bc1 Nd2 Qgf3 Qd7 Qc5 Qe6 Bg7 Qf6 Qcd4 Qe6 Rf4 Kh5 Rf5+ Kg6 Qed3 Nb3 B1f4 Nd2 Ra6 Rf6 Qb3 Kf7 Qbe3 Ke7 Ra7 Bb4 Ra5 Rf7 Ra6 Bc2 Ra4 Ba5 Ra2 Bca4 Bd8+
4QRbq/1nrRK2k/2r2B2/bQ1b1qq1/1r3n2/RQ1BqNN1/R6b/3R1N2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 Kf7 e4 Kg6 g4 c5 b4 c4 d4 c3 g5 h3 d6 a4 b6 h2 d7 f3 Ke6 a3 d5 f2 b7 f4 d6 a2 e5 c2 b5 h4 b6 f3 Bb5 f1R Na3 f2 Nb1 h3 Nf3 Kh7 Bb2 c1Q Qb3 Qe3 Nbd2 Rb1 Rd1 h1B Nf1 Ne7 Bd3+ Ng6 Kf7 h2 e6 Ra6 e7 Bg2 e8Q h1Q Bf6 Nc6 b8Q Na5 b7 Rc6 Qb5 Rb4 Rd2 Qdb6 d8R Qbc5 d7 Bd6 Rad1 a1B Ra2 Bh2 Qg3 Bh3 b8R Nb7 Rba8 Bg2 R8a3 Bc3 Qb8 Qf5 Qg3 Nf4 g6+ Kh6 g7 Kh7 g8N Be1 N1d2 f1Q Nh6 Qfg1 Nf1 Rg8 Qh3 Rg7+ Kf8 Rb3 Qg3 Ba5 Qh3 Rb4 Qg3 Qg6 Nf5 Qgf2 Qh3+ Qh4 N5g3 Qf5 N3d2 Bd5 Nf3 Qfe4 Qhe6 Qg5 Q6f7 Qef5 Qfe6 Rg6 Ke7 Rg7+ Qf7 Rc3 Rf8 Rc6 d8R Bd7 Qe4 B7e6 Qec4 Qg2 Qb3 Qh3 Ke8 Qhh6 Qh5 Rgc7 Rd7+ Qg7 Qf7 Qg5 Qe7 Bg8 Qe5 Bgf7+ Ke7 Qh8 Qe4 Bfe6 Qe5 Rc8 Qb8 R8c7 Qe8 Bg8+
r1QQ3K/1n2q3/rR1Q1nr1/B2BRr1k/1R2N3/1qB1b3/B2N4/bb1bqB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 d4 Kg6 e4 a4 b4 f3 b6 a3 g5 c4 b5 c3 b7 a2 b6 f4 d6 f2 d7 c2 d5 h3 d6 h2 Nh3 h4 Bb2 c1B Bc3 f3 Nd2 Nf6 Rb1 a1R Rb4 Qc7 d8Q Qc4 d7 Na6 b8Q Nc5 b7 Kh5 g6 R1a6 g7 Rg8 Ng5 h3 Qd6 Be7 b8R Qb3 R8b6 Nb7 Qc2 Bb2 Kf5 Ba1 e5 Bf8 Rg1 h1Q e6 h2 e7 Qg2 Nge4 h1B e8B+ Qg6+ Ke5 Qgf7 Rg6 Qe7+ Kf5 Bg2 Bf7 Bh1 Bd5 Bg2 Bd3 f1R Rg4 f2 Rg5+ Kh6 Be2 Bf3 Bb5 Bd1 Bd3 Rh8 g8B Rh7 Bge6 Rg7 Ke5 Rg6 Rf5 Rfg1 Bf1 R1g5 Qc1 Kh5 Qc2 Bh6 Qc1 Qb2 Ba2 Qh7 Bed5 Qb3 Ke6 Qg7 Re5 Rf5 Qc2 Be3 Qc1 Qh6 Kf7 Qg5 Qc2 Qh4 Kf8 Rh6 Kg7 Rg6+ Kh8 Qg5 Bh3 f1Q Qc1 Qh1 Bf1 Qgh4 Q8e7 Qe1 d8B Qhh4 Bc7 Bd7+ Qd8 Be6 R6b5 Bg8 Ba5 Bh7 Rb6 Ng4 Bb2 Qe7 Qcc8 Nf6 Bc3 Bg8 Bc6 Bc4 Bd5 Bd3 Bc6 B3c2 Bd5 Bb1
k2K2qb/n3BQ2/r1N3bb/2qBrqRN/2R1q2n/1Q4b1/1N2r2Q/3R2NN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 d4 a4 e4 c4 b4 f6 g4 f3 b6 h3 g5 f2 d6 Kc6+ d7 Kb7 Ke6 a3 g6 a2 e5 h4 g7 f5 d5 h2 d6 f4 b5 h3 Ba3 c3 Bc4 f1R Qd5+ Nc6 Nd2 c2 Rd1 a1B Ne4 c1B Nf2 Nf6 g8N Kb8 b7 Nh7 Nf6 f3 Nh5 Ka7 b8N Be7 Na6 Bh6 Nc5 Re1 Ncd3 Bh4 Nb2 Re2 b6+ Kb7 Qd3 Ra6 Bd5 Ka8 Qb3 Re8+ Kf7 Qg5 d8R Nf8 d7 Bg3 e6 Ng6 e7 Nh4 Rd4 Qe3 Rc4 Qc5 b7+ Kb8 Nbd3 Bh8 Nb2 Ka7 b8N Ka8 Bb4 Bb7 Ba3 Na7 Nc6+ Bc8 Bb4 Rg8 e8Q Rg5 Qe7 Rf5+ Ke8 Rfe5 Nfd1 f2 Ba3 f1Q Nf2 Qd4 Qe6 Qe3 Be7 Qc5 Qf7 Qb1 Nf3 Qe4 Rd1 h1Q Ng1 Qhg2 Nh1 h2 Rdd4 Qf5 Rg4 Qb5 Rg5 Qge4 Rc1 Qb8 Rd1 Bb7 Rc8 Qc4 d8Q Qc5 Rc7 Bc8 Qd6 Be6+ Rc8 Bd7+ Kd8 Be8 Nf2 h1Q Qc7 Qhe4 Nh1 Re6 Qf4 Re5 Qf2 Ng6 Qh2 Nh4 Qg7 Bg6 Qf8 Qcb4 Qf7 Qc5 Ke8 Qcb4 Nd8+ Qb7 Rc6 Qbb4 Rc4+ Nc6 Be6 Q4b6 Kd7 Na7 Nc6 Qf6 Bd5 Qg8 Qa4 Qc5 Qb3 Qff5+ Kc7 Qh7 Kd8 Qg8+
N5qB/3rqB2/1Q1bB1NQ/2B1nB2/bq6/2n1rQ2/qrnk1N1R/3rRK2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 Kd6 g4 Ke5 d6 Kd4 e5 a5 b6 c5 d7 f5 d3 h5 e6 f3 g5 a4 b5 c4 e7 a3 e8B h3 g6 a2 b7 c3 g7 f2+ Ke2 c2 b6 h2 Ba3 c1Q Bf7 f4 Bb2+ Qc3 Qb3 h4 Ba3 h3 Nd2 Rh7 Ne4 Nf6 g8B Qb4 Re1 Nc6 b8B a1N b7 Qde7 d8Q+ Nd5 Qd6 Ne5 Qh6 Nc2 Be6 Ra5 Bgf7 Rb5 Bc7 Rg7 b8N Bd7 Na6 Be8 Bg2 f1R Nf2 Rb8 Bd6 Ba4 Be4 Rb6 Nc7 f3+ Kd1 Rh7 Bb2+ Nc3+ Kd2 Rg7 Na8 Rb7 B4f5 Rb5 Ra1 Re1 Rd1 Re3 Re1 Qa3 Ba1 Qa2 Ba3 Qb4 B1b2 Bd6 Ne2+ Kc5 Nf4 Kd4 Ng6 Rb8 Rhg1 h1Q Rg2 Qg1 Rh2 Qg5 Ba1 Qe7 B1b2 Rgg8 Ba1 Rgd8 B1b2 Rd7 Ba1 Kc5 d4+ Kb5 d5 Rb6 Nh1 f2 B1b2 f1Q Nf2 Qc4 Ba1 Bb8 d6 Qc8 B1b2 Qg8 Ba1 Kc5 B1b2 Kd4 Ba1 Rd8 d7 Bd6 B1b2 Rb7 Ba1 Rdb8 d8Q Rd7 B1b2 Na1 Qd1 Nc2 Qf3 Rbb7 Rg2 h2 Qb6+ Qc5 Ba1 h1R Rh2 Rf1 Qa7 Rb2 Qb6 Nd5 Bb4 Kc4 Kd1 Qa5 Bc5 Kc3 Qg4 Qb4 Qf3 Rd3+ Ke2 Rh1 Ng4 Re3+ Kf2 Kd2 Kg2 Rb3 Bad4 Rb2 Nf2 Nc4 Bf6 Ne5 Bh8 Nc3 Rh5 Rh4 Kf1 Rd4 Rh2 Rd3 Nd1+ Kc1 Nf2+ Rd1 Rh3 Kd2 Rh1 Ra1 Rh2 Rd1
1nkq3b/n1Nb1Rr1/R1qRn1r1/2R3qQ/N3q1B1/nR1B4/Kr3BQ1/2N5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 g4 c5 e4 f3 d6 a4+ Ka2 a3 b4 c4 e5 f4 d5 f2 g5 f3 b6 h3 b5 h4 b7 c3 g6 h2 b6 h3 g7 c2 Bd3 f1N Be3 c1R Bf2 Ne3 Nc3 Rb1 Na4 Ra6 Ne2 Ne7 g8Q Bg7 Rf1 h1Q Nc1 h2 Qe2 Bf6 Qg2 Nc2 Qd1 Nec6 e6+ Ke8 e7 Kd7 Qe2 N2d4 Qe5 Na7 Qh5 Nbc6 b8R Ne6 b7 Rg8 Ra8 Bh8 b8R Rg7 Rb3 Qg1 Rab8 h1Q R8b5 Nb8 Rc5 Qh4 Bc2 Qe4 Bd3 Qa5 e8B+ Kd8 Qgg4 Bd7 Qg2 Qb6 Bg6 Qc6 Bf5 Kc8 Bh3 Qh4 Bg4 Qd8 Re1 Qh1 Re5 Qe1 Rf5 Qe4 Rf7 Qg5 Bd4 f2 Be3 f1Q Bf2 Be8 d7+ Kc7 d8R+ Bd7 Re8 Qd1 Ree7 Kc8 d6 Qde1 Rf6 Qa5 Ref7 Qd8 Rh6 Ra5 Rc4 Rf5 Rc5 Rf6 Rg6 Be8 Rh6 Rfg6 d7+ Kc7 Rb2 Rf6 Nc3 Nf8 Rb3 Qde7 d8N Bd7 Ne6+ Kc8 Nc7 Qd8 Rg6 Rf5 Rd6 Rf6 Rb2 Ne6 Kb3 a2 Ka3 Rfg6 Rb6 Rb5 Rb1 a1N Ra6 Nc2+ Ka2 Na3 Na4 Rb4 Rb3 Rb6 Rbc3 Rb1 Rb3 Rb2+
R1nR2Rr/2Rb1b2/5Q2/1b1q1N2/5nr1/1qbk1BqR/1r2NBBN/2rK1Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 a5 g6 h5 b6 f3 g7 a4 b7 f2+ Ke2 f4 b5 a3 b6 f3+ Kd2 a2 Be2 f1Q Ba3 h3 Bd3 h4 Nc3 f2 Qe2 h2 Bb1 h3 Bd3 Qb1 Qf1 Qh4 Nf3 Bd7 Be2 Nf6 g8N Ra4 Nh6 Qb3 Rc1 Nc6 b8R a1R b7 Rb1 Ra8 Bg7 b8R Na7 Rg8 Nh5 Rc2 Rb2 Kd1 Nc8 e5+ Kc7 d6+ Kc6 e6 c4 e7 Nf4 e8B Qg3 d5+ Kb6 Nb1 Kb5 Bc5 Bc3 Bg6 Rb4 Be4 Ra4 Nf5 Rb4 Rg1 h1B Nh2 Bf3 Bb6 Bh5 Rh1 Bf7 Bg2 Ra4 Bef3 Rb4 Qe1 f1B Bf2 Bd3 Ng4 h2 Qf1 Bde6 d7 Ra4 d8Q Bd7 Rg1 h1Q d6 Qh5 Qf6 Kb4 Nfe3 Qd5 Rh1 Kc5 Rh3 Rb4 Qe6 Kd4 Nh2 Ra4 Qh1 Bf1 Qf6+ Kd3 Qg1 Ba5 Nf5 c3 Ke1 Be2 Qf1 Rd4 Rc1 c2+ Nc3 Re4 Ra1 Bb4 R1a7 Ba5 Rb7 Rb4 Rc7 c1R+ Nd1 Rcc2 Nc3 Bde8 d7 Ra4 d8R Bd7 Qh1 Bf1 Kd1 Rc4 Nb5 Bc3 Nbd4 Nh5 Ne6 Rg4 Ned4 Nf4 Rb7 Kc4 Rba7 Kc5 Qg1 Bfb5 Qe1 Kc4 Rc7+ Kd3 Ne2 Bc4 Qh1 Bcb5 Qf1 Rc1+
Bb5B/q1bK4/2q1r3/1Q1bqN2/nn1R3N/3Rb1Bn/B1kBN3/2r1q1RQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 h3 b6 h2 b7 c4 g6 f3 d6 h4 d7 f2 Ke6 c3 d5 c2 e5 h3 d6 f4 g7 f3 Bb5 f1Q Ra3 f2 Be2 a4 Bd3 Nc6 b8Q+ Qb6 Be4 Qe1 Qc7 f1Q Nd2 Kc3 Qb7 Qa7 Ndf3 Qfe2 Qb5 Nb4 Nh4 Ne7 g8B Bb7 d8B Nc8 d7 Bd6 Bf6 Bb8 d8R Nb6 Rd4 Rh6 Bd2+ Kb2 Ke7 c1B e6 Bd5+ Kd8 Qh5 e7 Qe5 Bh8 Re6 Bf3 Kb1 Ne2 Kb2 Rf1 h1Q e8N h2 Rg1 Qg2 Be4 h1N Nd6 Nf2 Ndf5 Nh3 Bf7 Qf3 Bg8 Qc3 Bh1 Qc6 Bf3 Na2 b4 Kb1 Rad3 a3 Bf7 Na4 Bg8 Qf2 Qf1 Qe1 Qg2 Kc2 Qh1 N2c3 Be4 a2 Bg2 a1B Bf7 Qca6 Be4 Bc7+ Kd7 Rc8 Bg2 Na2 Bf3 Bc4 Ba8 Q6b6 Qa6 Qbc5 b5 Bd5 b6 Nb4 b7 Bab2 b8B Qc3 Bf4 Be3 Qb5 Bbc1 Bh6 Bf4 Bg5 Bh2 Bd2 Qcc5 Bc3 Be3 Bd2 Bd8+ Bb7 Qg7 Qc6 Rd6+ Ke8 Kb1 Qa6 Bg2 Bc4 Re6+ Ne7 Bd5 Kd7 Qcb6 Bb3 Rc1 Ba2+ Kc2 Qb5 Qf6 Nef5 Qba6 Bg3 Ba5 Bf2 Bb8 Bg3 Bac7 Bc6 Qe5 Ba8 Qc6+
1Q2NK1R/QN2BB2/Bq1R3b/2N1kr2/7Q/4bn1B/2nB1qp1/qb2rr1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 g5 Kd5 a5 b4 d6 c4 d3 e4 f3 h4 a4 e5+ Kf5 h6 g4 h7 d2 h5 g3 c5 f2 e6 a3 h6 f6 b6 a2 c6 g2 b5 Ra6 e7 Nd7 e8B Bg7 b7 Nb8 c7 Nc6 b8Q Ra5 Ne2 Ne5 Qe1 d1Q+ Bd2 Nf3 Bf7 Qc1 Nbc3 Ne7+ Kc4 d5+ Kc5 d4 Nf4 d3 Qa7 Qc2 Nd5 Nc6 Rd1 Re8 h8N a1B h7 Nb4 Rh6 Qb1 Ne4 Ke5 Rh3 f5 Ndf6 Re7 Ne8 f4 Rh6 Bg4 c8B Bf5 Rd6 Bg6 Bh3 Nc2 Kc6 Bd4 b6 Bf5 b7 Qa1 b8Q Be3 Nc5 Bh6 Be2 f1R Qh4 Re6 Re1 Qb6+ Kd7 Nfd4 Rb1 f3 Rb4 f2 Ra4 Rf6+ Ke7 Nf3 Rg4 Re1 Rg8 Bhf4 Kf8 f1Q Bc1 d2 Ba6 d1N Bd2 Bg5 Bc1 Ng1 Na4 Be6 Bd2 Qf4 Ng6+ Ke4 h8B Nf2 Ne5 Bh6+ Bg7 Ba2 Nc4 Bb1 Rh8 Rc5 Na5 Nh1 Nb7 Rh5 Ke7 Ke5 Nac5 Qg3 Bf8 Rff1 Nc7 Rg5 Ke8 Rgf5 Be7 Bhg5 Kf8 Qf2 Ne8 Nf3 Bc1 Bgf4 Bd2 Bh6+
2k1n1b1/1q3b1Q/n3R1rQ/1NqQ2Rr/1b1p1n1Q/2BB1BN1/1K2Q3/qN3r2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 b4 d5 c4 Kd7 Kc2 h5 f4 e5 g4 a4 b6 h3 f6 a3 b5 a2 c5 e4 c6+ Kd6 g5 h2 b7 Kc7 f7 h4 b6+ Kd6 f5 e3 c7 Kd7 g6 d3+ Kb2 d2 f6 d4 g7 h3 Ne2 Qe7 Rg1 h1Q Rg5 h2 Ng3 Rh7 Qe2 d1R Bd2 Qg1 Bc3 Na6 b8Q h1B b7 Qc5 Qa7 Be4 b8Q Bg6 Qb3 Rh5 Qd5+ Bd6 f8Q Qg2 f7 Nf6 g8Q Ne8 Qh8 Qf3 Bg2 Rf1 Qfh6 Bb7 f8N+ Kc8 Bh1 Bf7 Ne6 Bc6 Q8f6 Bb5 Qf4 Bc4 Qh4 Qe4 Bf3 Qh7 Qd2 e2 Qd3 e1N Qe2 Ng2 Qab7+ Kd7 Qa7 Nf4 Qab7 Nf6 Qa7 Rg8 c8B+ Ke8 Qab7 Rg6 Nc7+ Kd8 Nb5 Ne8 Bf5 Bg8 Qa7 Qb7 B5e4 Kc8 Bd3 Qb8 Qah7 Qb7 Na3 Bb3 Re1 Bf8 Nb1 Be7 Qd6 Bbf7 Qd5 Bd6 Qc2 Bf8 Re6 Be7 Qe2 a1Q+ Kb3 Bd8 Kc2 Ba5 Kb3 Bb4 Kc2 Qa5 Kb2 Qa1+
n3r1n1/R4Q1R/b6p/2B1Bbq1/q2bQK1N/NB5B/1n6/NQrrB1kq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 e4 Kd4 b4 a5 b6 f5 b7 c5 e5 h3 d6 c4 b5 c3 d7 h2 e6 c2 e7 a4 e8Q a3 b6 a2 g5 Bb4 g6 Bf8 g7 Ne7 g8B Bh6 Qf7 Na6 b8B Bg7 b7 Nc7 Ba3 c1N Qe2 Nd3 Bh3 Nb2 Qe5+ Kd3 Bc5 Ra5 Qe1 Bd4 Na3 Na8 Be5 Ra7 b8N Rc7 Nc6 Ba6 Na5 h6 Nb3 Rc6 Rc1 Qa5 d8Q a1Q Qb8 Qa4 Rc4 Qc1 Na1 Rd6 Rb4 Rd5 Rb7 Rd7 Kg2 f3+ Kg3 f2 Nf3 f1B Nh4 f4+ Kg4 f3 Kf4 f2 Ra7 Rb7 Rg1 h1Q Rg7 Rc7 Rh7 Be2 Qb7 Bg4 Qg1 Ke2 Qb4 Qc4 Qb1 Bf5 Qb7 Qcb5 d3 Bc3+ d4 Qba5 Qb4 Rd7 d5 Bd4 d6 f1R+ Kg3 Rc7 d7 Rd1 Kf4 Kf2 d8B Kg1 Qb7 Rc8 Q7e4 Q5b5 Ba5 Rc6 Bcb6 Rcc1 Be1 Qd5 Bc5 Qd8 Qc4 Qda5 Bf7 Re8 Qcd5 Q5b5 Qd7 Qba5 Bb3 Ng8 Qdd5 Qd8 Qf7 Qg5#
Nq2K3/2QR4/q1qQ3Q/1Q3nq1/B2rn1br/1RR1q2N/1B3pk1/B2Q1nb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 c5 b4 c4 g5 a4 b6 a3 g6 a2 b7 h3 g7 f6 b5 c3 b6 h4 Nd2 f3 Bb2 c2 Rb1 c1Q Nc4+ Ke7 d6+ Ke6 d7 a1Q d5+ Kf7 Kf5 f2 e4 h2 d6 h3 e5 Nc6 b8B Rh4 b7 Qe3 Nb6 Qa6 Bb5 f1N Ba4 Qc7 Ba7 Qb8 Ba1 Be7 Rb3 Bd8 Nc4 Bc7 B7d4 Bb6 Bdb2 Ba7 Nb6 Rd4 Ne2 Rh4 Rg1 h1Q Rg3 h2 Nf4 Qhg1 Nh3 h1Q Rc3 Nd8 Rb3 Ne6 d8Q Ng5+ d7 Qc6 Qc7 Ne4 e6+ Ke7 Kg6 f5 Rc3 Nh6 g8Q f4 Qh8 Nf5 Qh6 f3 d8R+ Bd7 Nc4 Bc5 Nb6 Ra7 Na8 Bd4 Qb6 Kd6 Kf7 Ke5 e7 Qg5 Qb4 Q1e3 e8Q+ Kd5 Qef8 Ke5 Qb5+ Bc5 Ng1 Kf4 Rh3 Bc8 Rd7 Bd4 Ke8 Kg4 Rh1 Kg3 Nh3 Kg2 Qff6 f2 Rb3 Be5 Qfd6 Bh2 Qc7 Bg1 Qcd6 Qbc7 b8Q Q7b6 Qbc7 Qb8 Rc3 Rb7 Qbd3 Rb4 Qb5 Rd4 Rb3 Bh2 Rc3 N1g3 Re1 Nf1 Re2 Bg1 Rec2 Qcb6 Rb3 Qc6 Rcc3 Ne7 Qa7 Qc4 Rd8 Bg4 Qac5 Nf5 Qcc7 Qba7 Rd7 Qcc6 Qe7 Q7b7 Qed6 Qb8+
3r1BB1/2KBRr2/1r3R2/nr1n1bbb/k1rRq3/1q3N1Q/3Qp3/2NN1RR1 w - - 0 1 illegal: No possible last move
1rnkN2Q/4Nnb1/1q1bB1nR/5KN1/3B1r1N/n1N5/p3b1Q1/1nBRQ2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 c5 b4 c4 e4 f3 g4 a4 d4 f4 g5 f2 b6 h3 g6 c3 g7 h2 b7 c2 b5 a3 d6 a2 b6 h4 d5 f3 Nh3 Bg4 Nc3 Nh6 g8N Ra4 Ng1 h3 Bc4 f1N Qe1 f2 Nf3 Nd2 Nh4 f1N Ne7 Nb1 Kf4 Rb4 e5 Bg7 e6 Nc6 b8Q Na3 b7 Be2 Qa8 Nf7 b8B Nd2 Ba7 Nce5 Kf5 Ng6 Bd4 Ndb1 Bb3 Qb8 d7+ Kd8 Qc6 Qb6 Qa8+ Kc7 Bc4 Rb8 d8N Nfe5 Nf7 Ra4 Bf4 c1B Ng5 Kd8 d6 Nf7 d7 Be3 Qg2 Bf2 Nh7 Bg3 Bc1 Bd6 Ng5 Rb4 Rg1 h1N Rf1 Nf2 Rh1 Kc7 Bb3 Ne4 d8Q+ Kb7 Qh8 Kc7 Nc6 h2 e7 Ra4 e8N+ Kd7 Ne7 Kd8 Rf1 h1Q Be6 Nc5 Rf3 Nd7 Rg3 Qb4 Rh3 Nb6 Nhf3 Qb2 Rh6 Nc8 Nh4 Qb6 Bf4 Nd2 Rd1 Ndb1 Bc1 Rb4 Bf6 Rg4 Bd4 Rf4+
RR6/bbK1q2q/N1n4N/4NQ1Q/Q1BkrBBn/3bbp2/5r2/1BB2r1b w - - 0 1 illegal: No possible last move, all moves rejected
Q7/Rb1bq3/3bBN1n/1N1q1r2/R3p2r/Bk1B1B1r/4Qnb1/1KB1bQR1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 h5 c4 e5 Kc2 d5 f4 a5 b4 h3 b6 a4 c5 h2 c6 e4 b7 h4 g5 h3 f6 Ke6 b5 a3 f5+ Ke5 c7 a2 f7 Qe7 f6 Na6 b8Q Nc5 g6 Rh4 b6 Nh6 b7 Nd3 g7 Nf2 g8B Ra5 Na3 d3+ Kb2 Kd4 Ne2+ Kc5 Nb5 Kc4 Rg1 h1B Qa8 d4 b8R d2 Rb7 h2 Ng3+ d3 Qe2 d1B Nh5 Ba4 Ra7 Bb7 c8B Bg2 Bg4 h1R Bf3 Kb4 Bg4 d2 Bf3 Bg7 f8B d1Q Be6 R1h3 Qe8 Qd5 Qa8 Qed6 Be7 Bf8 f7 Q6c5 Nf6 Qcd6 Nc3 Bd7 Nb5 Ka4 Kc2 Q6e5 Bb4 Bd6 f8Q Qg5 Kb2 Qg7 Ba3 Qe7 Rb1 a1B+ Kc2 Bc3 Ra1 Rh1 Kb1 R1h3 Qfd8 Qe5 Bab2+ Ba3 Qd2 Be8 Nc7 Qg5 Q8d3 Kb4 B1e2 Rc5 Nb5 Bd7 Qe1 Re5 Qf1 Be1 Qe3 Rd5 Bd3 Kb3 Qee2 Bd6 R1a4 Qe5 Ba3 Qd4 Rc4 Rf5 Rca4+ Qd5
1nRQqkr1/2B2BN1/1N2rQB1/1r1Q1b2/p1Nrqq1B/1R1n3K/3r4/2b1B3 w - - 0 1 illegal: No possible last move
2Rr2BR/7N/1n4k1/1qBqB2p/Q1r3q1/1q1n1r2/3N1QBN/bb2qQBK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 e4 a5 g4 f5 Kg2 Kf7 d4 h6 b4 c4 b6 a4 e5 c3 e6+ Kg6 g5 c2 b7 a3 b5 a2 d6 Nf6 e7 Ra6 e8N Be7 d5 Nfd7 b6 Bf6 Be3 c1Q Nf3 Qb2+ Nbd2 Qb3 Bc5 Ne5 d7 Nd3 d6 Ra4 Nh2 Rc4 Rc1 Ba1 Nf6 Qg8 d8B Nd7 b8Q f3+ Kg1 f4 b7 h3 Nh7 Nb6 d7 Qe6 Bg2 Qg4 Qa8 Rg8 Bde7 Rd8 b8B Ba6 Be5 f2+ Kf1 Bb7 Qa4 Be4 Be3 Bf5 B7c5 Be4 Rg1 h5 Qe1 Ra8 d8Q Rb8 Qd4 Rd8 Nhf3 h2 Qd1 h1Q Nh2 Bb2 Rc3 a1Q Qe1 Kf5 g6 Qc1 g7 Kg6 g8B Ba1 Qd1 Qcb1 Qe1 Qb5 Qc1 Q1b3 Bf3 Nb4 Be6 Bb1 Bcd6 Kh6 Ba8 Nd3 Bf8+ Qg7 Bf7 Qb7 Rc2 Rb4 Rc8 Q7c6 Bd5 Qcc4 Rg5 Qcc6 Kg2 f3+ Kh1 f1Q+ Bg1 f2 Bc5 Rc4 Rg4 Qgd7 Rg8 Qg4 Rh8 Kg6 Qd1 Qcd7 Bg8 Qfe2 Bg2 f1R Qe3 Rf3 Qf2 Qd5 Qdf1 Qe1
B1bRqQ1R/1N4K1/6p1/6NQ/nrBR1n1B/r2Bq1b1/n2kNb2/nn4B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 f5 h4 d5 e4 a5 h6 f3 b6 d3 b7 d2 h7 g6 c5 f4 c6 a4 h5 f2 c7 f3 h6 a3 Nh3 a2 Bd3 f1Q Ng5 d4 Rh4 f2 Qh5 d1N Nc3 Qg1 Be3 f1N Ne2 Na6 b8B Bh3 c8B Ne7 Kf6 Qg3 e5 Nd2 e6 Nc5 Bb7 Ndb3 Bg1 Nc3 Rd1 Qe3 Bg3 Ra3 Ba8 a1B Rf4 Qd7 Bh4 Na2 Kf7 Rg8 h8N Na4 h7 Nd5+ e7 Bf5 Bc4 d3 Rd4 Nf4 Kf6 d2 e8B Bc5 Nhf7 Qb5 h8R Bc8 Nd8 Ba7 Bef7 Qbe8 Nb7 Rg7 Bfe6 Re7 Bd7 Re4 Kg7 Bc5 Bf5 Bb6 Rb1 d1N Rc1 Ndc3 Rcd1 Nb1 Rd8 Re5 R1d4 Rb5 Bfd3 Qh3 Re4 Bf2 Red4 Qhe3 Nc1 Nbc5 b3 Kc3 b4 Kd2 Ne2 Rb6 b5 Bc3 Qh7 Nb3 Qh5 Rf6 b6 Na1 Nc5 Ba5 b7 Bc7 b8Q Rb6 Nb7 Rb4 Ne6 Ng2 Ng5 Bcg3 Qd6 Nf4 Qf6 Qc6 Qf8 Qce8
B1RRQ1n1/2BK2nq/p2B2QN/3nBNb1/2r2Q1n/7B/b1Rr2q1/2n1k1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 b4 c5 g4 f5 g5 f3 b6 f2 g6 f4 d6 a6 g7 h3 b7 h2 d7 f3 Ke6 h4 b5 h3 e4+ Kb4 e5 c4 b6 c3 d5 c2 d6 Qg5 Qd3 Rh7 Qg6 Nc6 b8Q Qh4 b7 Rh8 Ne2 Qh7 Nd2 Nce7 Bb2 c1N Ra2 Nd5 Ng3 Be7 Nde4 Bg5 Nf5 Kb3 Nh6 Kc2 Ng3+ Kd2 Ba1+ Ke1 Ngf5 Ra7 Bg2+ f1Q Rc2 f2 Qc7 Qg1 b8B f1R Be4 Bb7 d8B Qg2 Kd7 Rg1 e6 Ba8 e7 Rb7 e8R Rb4 Be5 Rc4 Be7 Bb7 Rd8 Bc6+ Ke6 Ba4 d7 Bb3 B7d6 Ba2 Bf3 Ngf6 Rc8 Rd8 Be4 Ng8 Bf3 Rf8 d8Q Re8+ Kd7 Re6 Bf4 Re2 Bfe5 Rd2 Bg4 Rf1 Rg1 h1N Qde8 h2 Bh3 Ng3 Rd8 h1N Rc8 Nge7 g8B Nh5 Rd8 N1g3 Rh1 Nc3 Bd5 Ng7 Ba8 Ng8 Rh2 Nd5 Rc3 Re4 Qc4 Rh4 Qf4 Rg1 Rcc8 Rg4 Bbc7 Rh4 Qf3 Rc4 Qf4 Qf3 Ne7 N3f5 Rf2 Nh4 Nef5 Rd3 Rb2 Qg2 Rc2 Rd2
qqnnRR2/2RB1qR1/3Q4/k3bBn1/b5NB/4br2/Q1Rp3r/2KNnN2 w - - 0 1 illegal: No possible last move, all moves rejected
4K3/N2r1Q1Q/Q4q2/B1b4R/1b1rNRnq/k1Bb1b1B/1np1r2q/1R1RR3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 Ke6 h2 Kf7 f4 e5 a4 d6 a3 e6 c2 e7 h3 e8Q f3 b7 a2 Bd2+ Kb3 Ne2 Qc7 Nec3 Ra7 Nb5 Nf6 g8Q Na6 b8R Rh4 Bc3 Bb7 Qd3 Nb4 Qgh7 Rd4 Nd2+ Ka4 Bg2 f1Q Re1 a1B Ne4 f2 Qe6 Ng4 Ke8 Qc4 d8B Bc6+ d7 Bc5 Qe2 Nd3 b4 Nb2 Ba5 Ba8 d8R Rad7 Na7 Ka3 b5 Qb4 Ng5 Bf3 b6 Qa4 b7 Qc4 Rg1 h1Q Ne4 h2 Bh3 Qhg2 Qd5 h1R Qdf7 Rh2 Rh1 Qgg1 Ra8 Rg2 Rac8 Qh2 b8R Qa4 Qa6 Qb4 Qah6 Qa6 Rc6 f1B Rf6 Bd3 Rf4 Re2 Rb5 Qc6 Rb1 Qg6 Rhe1 Qg5 Qa6 Qh4 Rbb8 Qb6 Rb7 Qbf6 Rbd1 Rc7 Rd5 Rd7 Rh5 Na4 Bd2 Bc3 Rbb1 B3b4 Bc3 Nb2
1N2Q3/nNr4R/3nQR1b/B4Qq1/QK3Q1q/n2br2p/3k3B/1nbNr2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 Kd2 f5 Kc3 h5 g4 a5 d6 c5 e5 h3 e6 h4 d7 a4 d5 a3 e7 a2 e8Q h2 b6 c4 b5 Ra7 d6 Bh6 b7 Ne7 b6 Nbc6 b8B Ba6 b7 Nc8 Bd2 Rh7 Be1 f3 Bg2 Kf4 g5 f2 g6 f1R g7 Qg5 g8Q Re7 d8Q Ke3 d7 f4 Qa5 f3 d8N f2 Qda4 Nd6 Nf3 Ke2 Bd2 Re1 Ne5 f1N Nd7 Re4 Qge6 Re3+ Kb2 c3+ Ka3 c2+ Nc3+ Kd3 Nd1 c1B+ Kb3 Bb5 Rb1 Ba6 Qaf5+ Ke2+ Bc3 Bd3 Ba5 a1N+ Kc3 Nc2 Rb6 Nd2 Bc7 Ne7 b8Q Nec8 Nb7 Na3 Kb4 Ndb1 Bd5 Kd2 Ra6 Ndb5 Bf4 Ncd6 Qc7 Nc8 Nb8 Nbd6 Bg3 Ne4 Qcf4 Ned6 Rg1 h1Q Bh2 h3 Bf3 Qh4 Rg7 Qg1 Bh1 Qg2 Rh7 Qgg5 Nd8 Rg7 Nb7 Na7 Q6g8 Ndb5 Rf6 Rc7 Qge6 Nd6
Q2qKB2/nRN3r1/nr5R/1RBRb2r/2bN3N/1r2kpQ1/n3B1q1/1R1q4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 h5 d4+ Kb4 g4 a5 g5 c5 b6 c4 b7 f3 d6 a4 d5 Kc5 b4+ Kb6 b5 Kc5 b6 h3 d7 f4 Ke6 c3 Kf7 a3 g6 a2 e5 h4 g7 c2 e6 h2 e7 h3 e8N f2 d6 Be7 Nc3 Ra3 Nc7 Bf6 Qg4 Kd4 Be2 f1R Qg3 Be5 Rb1 Ne7 g8Q Na6 b8R a1Q b7 Rb3 Ba3 c1N Nf3+ Ke3 N3b5 Na2 Nh4+ f3 Nd4 Rh5 Bc5 Nc6 Qf8 Na7 Qe8 Qg5 d8R Rg1 d7 Rh6 Qf8 Rhb6 Ke8 Rg2 Ra8 Qb2 b8R Qd2 Rb7 Qd1 Rab8 Qf6 Rf1 h1Q Qh8 Qh2 Rh1 Rg1 Qf8 Qg2 Qfg8 h2 Qd5 R6b4 Rb5 Qg5 Qa8 Bb7 Bf8 Bd5 R8b7 Bc4 Rd5 Qg8 Rdb8 Rb6 d8B Rc6 Rbb5 Rb6 Be7 Qg5 Bc5 Qd8+ Kf7 Qf2 Rb7 Rg2 Rf1 h1R Rg1 Rh3 Rh1 Qff1 Qe1 Rg5 Qg3 Qg2 Rh2 Qd6 Ke8 Rg7 Ng6 Rhh7 Rh6 Qf6 Nh4 Rh8 Rg6 Rh5 Rh6 Qd8+
q1Q1RB2/bqb4Q/6Nr/B1NR1nbK/1nNnNr2/1Qp5/2bqB1k1/3N4 w - - 0 1 illegal: No possible last move
2R1q1nR/3KB1BN/3N2R1/5nbq/2QQB3/2p4b/1RN2Rr1/qrr1nqk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kc4 g4 c5 e4+ Kb4 b6 f5 d6 a5 b7 a4 d5 f3 g5 f2 g6 a3 g7 a2 d7 h3 Ke6 f4 d6 f3 e5 h4 Qd4+ c4 Rh2 Ra5 Bh6 Rc5 Na3 Nc6 b8R+ Rb5 Bd3 f1R Be4 f2 Nf3 Nce7 Ng5 Nf5 Nh7 Rc1 Nc2+ Kb3 Rb1 a1N Rb6 f1Q Rf2 h2 Ra6 h1Q Rc6 Nge7 g8Q c3 Bg7 h3 Qf7 h2 Rb6 Ka2 b4 Qe8 Rc6 Rb7 b5 Rg8 b6 Qf3 Rb3 h1Q Rb4 Rb8 b7 Qfh5 Rbb6 Qhg1 Ra6+ Kb1 Ra2 Rd1 Rb2+ Kc1 Ra6 Nb3 Rc6 Nd2 Rcb6 Nf3 Ra6 Ra8 b8R Ne1 Rc6 Ra1 Ra8 Bb7 d8R Rb1 d7 Bc8 Raa6 Ng3 Kd6 Ngf5+ Kc7 Qgh1 Qfc4 Qhg1 e6 Qgh1 Bh8 Rg2 Bg7 Ng8 e7 Qhg1 Rc5 Qgh1 Rg6 Qhg1 Be5 Bh6 Bg7 Bg5 Rcc6 Qf7 e8N Qgh1 Nd6 Qe8 Rf4 Qhg1 Qe5 Kd2 Qed4+ Qd3 Rf1 Ke2 Rc5 Rdc1 Rf3 Ba6 Ra8 Bb7 d8B Bc8 Be7 Be6 Rc8 Qgh1 Rh3 Kf1 Ra5 Qde2 Raa8 Qg1 Rd3 Qgh1 Rd2 Qd3 Rf2+ Kg1 Rab8 Qf1 Ra8 Nfh6 Rab8 Bh3 Ra8 Nf5 Rab8 Qa4 Ra8 Qa1 Kd7 Qh2 Rab8 Qe5 Ra8 Ngh6 Rh8 Ng8 Rc8 Qe6+ Kd8 Qf7 Kd7 Qe8+
2kq1n2/4BR1N/2B1R1rq/2KN2R1/p2r2QR/1r1nbbQq/3Qn3/2B1r2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 f3 Ke3 c4 e5 a4 b6 h3 e6+ Ke8 e7 Kd7 e8R h2 b7 h4 d5 c3 Kd4 f2 b5 f4 g5 c2 g6 h3 b6 f3 g7 Ra6 Bb5+ Nc6+ Kc5 f1R b8R f2 b7 Ne7 g8R Bh6 Nc3 Re1 Nf3 f1Q Ng5 Ng6 Nh7 Nf8 Re6 Be3+ Qd4 Qff6 Rg5 Qh6 Ra8 Rg8 b8Q Bb7 Ra7 Rg6 Rb1 Rb6 Rb4 Bd2 Qg4 Be3+ Rd4 Rd1 Ba6 Rb3 Bb5 Bf4 Rb4 Rd4 Rc4 Be3 Rb4 Qc8 Rc4 Kd8 d7 Nb4+ Bc6 Ba8 Qbg3 Qb8 Bb2 c1N Rb7 Ne2 Bc1 Nc2 Rc7 Ne1 Rb4 Ng2 Rc4 Ngf4 Ra7 Bb7 Rb4 Kc7 d8B+ Kc8 d6 Qc7 Be7 Qd8 Nd5 Ba8 Rd1 h1Q Rf1 Qg2 Rh1 h2 Rc4 Qgh3 d7+ Kb8 Rd1 h1R Re1 Qc8 d8Q Rg1 Qa5 Qd8 Qd2 Kc8 Rf1 Rg2 Rh1 Rg1 Bd6 Re1 Rf7 Bb7 Be7 Ba8 Rb4 Nd3+ Kb5 Qh2 Q4f4 Rg7 Nc7 Bg1 Be8 Bf3 Nd5 Q2h3 Bc6 Rg6 Qe4 Be3 Qeh4 Nf2 Kc5 Rdd3+ Rd4 Bf4 Rde4 Rd4 Qh5 Be3 Rh4 Rg7 Qhg4 Rg8 Rg1 Rg6 Rh1 Nd3+
4knr1/RN2BR2/7n/1rb1NR1b/pb1NB3/1B4R1/2Q1Q1n1/q2rRKqb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 c5 e4 f5 d4 h5 g4 a5 d6 h3 d5 c4 d7+ Kf7 g5 h4 d6 h2 e5 h3 b6 f3 g6+ Ke6 g7 Kf7 b7 f4 e6+ Kg6 b5 c3 b6 c2 e7 Kf7 e8Q+ Kf6 Na3 Nh6 Qee2 Kf7 Nb5 Qf6 d8R Nd7 b8R Rg8 Rb7 Rb8 Bg2 f2+ Kf1 a4 Be4 Be7 Ra3 Qa1 Nd4 Nf8 d7 Bb4 Ra7 Ke7 Bd2 c1B Rg3 Bca3 b7 Bc5 Be3 Bab4 Ngf3 Kf7 Rhg1 h1Q Ne5+ Ke7 Bc1 h2 Qdc2 Qb2 Qed1 Qa1 Ba3 Qg2+ Ke2 h1B Re1 Qg1 Qdd2 Rh8 g8B f1N Bb3 Rg8 Qdd3 Ne3 Re8+ Kd6 d8N Ng2 Re7 Bg4+ Qf3 Bh5 Rf7 Rg5 Rf5 Ke7 Qg4 Rc8 b8R+ Ke8 Rbb7 Rb8 Rd7 Rb5 Rdf7 Rg8 Nb7 f3+ Kd3 f2 Ke2 f1R Qf3 Qh2 Qg4 Rf4 Qf3 Rfg4 Kf1 R4g6 Qfe2 Rd6 Bc1 Rd7 Bg5 Rd5 Be7 Rd6 Ndf3 Rd1 Nd4 Qg1+
BqN5/5BQq/2Q4R/5p2/b1R4q/rBBN3b/2n2nrN/bk1nKbBQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 d4 Kd6 g4 f5 e4 c5 b6 a5 g5 h5 g6 f3 g7 h3 b5 h2 b7 c4 b6 h4 Nh3 a4 Nd2 c3 Bg2 c2 Nf4 h3 Nd3 a3 Bb2 c1Q Nf1 a2 Bc3 Nc6 b8N Nb4 b7 Nf6 g8B Qg5 Rc1 a1N Nd7 Ra3 Nb6 Bd7 b8B+ Qc7 Rc2 Na2 Ba7 Qb8 Rc1 Ng4 e5+ Ke7 e6 Kd6 e7 Ba4 e8B Bg7 Bef7 Nf2 Rc2 Qh4 Qc1 Rh6 Qg5 Rg6 Nc8+ Kd7 d6 Kc6 d5+ Kb5 d7 Kc4 d8Q Kb3 Qd7 Qh7 Ba5 Nc3 Qc6 Ncd1 Rc4 Ka2 d6 Kb1 d7 Bh8 d8Q Nc2+ Kd2 Bg7 Qdd5 Ba1 Bc3 Qh4 Qh6 Rg4 Qg7 Rg3 Rg1 h1B Nh2 Rg6 Re1 Rg4 Re6 Rg6 Bf1 Bg2 Be2 Rg5 Rh6 Bf1 Bad4 Rg2 Be3 Nh1 Bg1 f2 Ng4 h2 Bf3 Ng3 Qe4 h1Q Qe1 Q1h3 Nh2 Nh1 Be4 Be2 Bf3 f1B Be4 Nf2 Bed5 Bg4 Qe4 Nce3 Ke1 Rg3 Qh1 Rg2 Rg6 Qh7 Rh6 Qh4 Qd7 Bfe2 Ba8 Bf1 Qc6 Bh3 Rg4 Qg5 Bb3 Qd8 Bgf7 Qh4 Rc4 Nc2+
4q2Q/r2rR1N1/3q1B1B/NpR5/1b3n2/3bKRq1/3NBrRn/2Q1nRnk w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 d4 Kf6 a4 h5 f4 e5 g4 c5 a5 b5 d6 h3 a6 h2 d5 h4 a7 c4 d7 c3 d6 b3 Ba3 h3 Qc2 b2 Qc1 e4 Nd2 b1Q Ke3 c2 Nc4 Qb3+ Bd3 Na6 Na5 Nh6 Nf3 Rh7 Nd2 Nc5 Rf1 Qe8 d8R h1Q d7 h2 Bb2+ Qc3 Ra4 Ne6 Rc4 Bb4 Rc5 Qg2 Rf3 Qe5 Be2 h1R Bc3 Rh2 g5+ Kg7 g6 Kf6 g7 Qg3 g8R Rf2 Rg5 Bb7 Rb8 Bc8 d8N Rd7 Rb6 Bb7 Rg8 Bd5 Rg4 Bc4 Rb7 Bd3 Rg5 Qh3 Rg2 Qg3 Qd1 c1N Ba1 Nb3 Qc1 Nbd4 Bb2 Qd6 Bc3 Ng5 Ne6 Nh3 Ng7 Ng1 Bb2 Rdd8 Re7 Rd7 Ree5 Ne6 Ba1 Rc8 a8Q Rcc7 Bb2 Ra7 Bd4 Kf7 f6 Kg6 f5+ Kg5 f7 Kg4 f8R Kh3 f6 Nf4 f7 Rdb7 Red5 Rd7 Bf6 Ng4+ Kd4 Nh2 Ke3 Qee7 Re8 Qee6 Re7 Qee5 Qg8 Qh5 f8B Qe8 Kd4 e3 Qh8+ Bh7 Bd1 e2 Ke3 e1N Be2 Qb6 Rf5 Qd6 Nh5 Bg6 Bh6 Bh7 Ng7 Bg6 Rfe5 Bd3 Rf5 Rf1 Rf2 Nd5+ Kd4 Ba3 Rfe3 Bb4 R5f4 Ng4 Rg2 Rf3 Rf2 Nh2 Rf1 Kg2 R3e5 Rf2 Rg5 Kh1 Rf3 Qh3 Rg2 Nf4+ Ke3 Qg3
4K1rR/R3B2N/4rp1b/1RQ3R1/q1b3bN/1q1k1Br1/1Qq2b2/nR1n1NQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 a5 d4 h5 e4+ Kb4 b6 c5 g5 a4 d6 f3 b7 h3 d7 a3 d5 a2 d6 h4 g6 h2 g7 h3 Bg5 f2 Be2 f1B Nf3 c4 Nh4 c3 Nd2 Nf6 g8R Ra6 Bf3 Qc7 d8Q c2 Qe7 Bb5 Re1 h1Q b3 Kc3 b4 Qc4 d7 c1B d8R h2 Qc5 Bh6 Rf1 Nc6+ Kd6 Be6 b8Q Nd4+ Ke7 Ng4 e5 Qg2 Qe1 Bbd7 b5 h1R b6 Nc2 b7 Rh3 Bf6 Rc6 Rg5 Nge3 Rdg8 Bd5 e6+ Kd3 Kd8 Qe2 e7 Bg4 e8N Re6 Be7 Rg3 Nf6 Qf2 Qe5 Qb3 b8R Bc4 Nh7 f6 Ke8 Bb2 Rg1 Bd4 Rb5 Qh2 Qf2 Qg2 Rgc1 Nd1 Qg1 Qe2 Nf1 Bf2 Rcb1 Qd2 Rb2 Qc1 Rab1 a1Q Ra2 Qcb2 Ra8 Qaa4 Ra7 Na1 Rf8 Q2c2 Qb2 Rg8 Rc1 Rg7 Rh8 Rg6 Rb1 Rg8+
5r2/2rqb2b/RQ1pqR2/2N1R2B/q1Q1R2n/1B1nK3/2q2R2/kb1Qr1BN w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 b4 Ke5 c4 a5 b6 h5 f6 h3 g5 d6 g6 d3 f4+ Kd4 f7 e5 b7 h2 g7 a4 f5 h4 c5 a3 f6 a2 c6 e4 b5 h3 b6 Ne7 g8B Nf5 c7 Be7 f8R Na6 b8Q Nc5 f7 Nh4 b7 Qd7 Nc3 Ra7 Be2 Kc4 Bh5 e3+ Ke1 e2 Kd2 e1R Nge2 Kb4 Ke3 d2 Na4 Nd3 Nc5 Kc4 Rf1 h1B Rf5 h2 Re5 Be4 Re8 h1Q f8R+ Kb4 Bb3 Bh7 Rf2 Qd5 Ref8 Qc4 R8f6 Qce6 Bb2 Rd8 Bd4 Ka3 Re4 Rf8 Re5 Rh1 Ng3 Rf1 Nh1 Re1+ Qe2 d1Q Re4 Rg1 Qg4 Qc2 Qd1 Ra4 Re5 Rc4 Re4 Rc3 Qa7+ Kb2 b8R Bb7 c8Q Bd5 Re5 Bde4 Rb4 Beg6 Qb6 Re1+ Qe2 Bf5 Qca6 Bfg6 Qc4 Be4 Ra4 Beg6 Ra6 Be4 Rd1 a1Q Rd2 Qaa4 R2f4 Beg6 Rfe4 Rb1 Qd1 Ka1 Ke2 Bf5 Bg1 Bfg6 Ke3 Rc1 Qcb5 Bf5 Rf2 Rb1 Nb7 Rc7 Nc5 Rc1 Qc4 Rb1 Qf3 Re1+ Kd4 Qca2 Ra8 Nb2 Ra6 Rf1 Rg4 Bb1 Qd1 Nd3 Rge4 Qc2 Ke3 Re1+
1q2nQN1/4N1K1/R2pRB2/3bqB1Q/2B2b2/rr2r1N1/1k1B3b/n2n1BQn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 c4 e5 b4 h5 f4 d3 g4 d6 g5+ Kg7 b6 a4 b7 d2 g6 Kf6 b5 h3 g7 h4 b6 a3 c5 h2 c6 a2 c7 h3 Ne2 Ra3 Ng3 Nh6 g8B Ng4 Nc3 Ne3 Bgc4 Be6 c8B Nc2 Qh5 d1N Bd2 Na6 b8N Bh6 b7 Nc7 Nc6 Re8 b8Q Bg5 Rg1 h1R Qb1 h2 Ne7 Bg8 Bd7 Qb8 Rg2 Rg1 Re2 h1N Qb6 Rg2 Qg1 Rh2 Bde6 Rh3 Re1 Na8 Kd5 e4 Re2 e3 Nce4+ Kg7 Nf6 Nc7+ Ke4 Bf7 Re1 e2 Nfg8 Bh6 Rc1 a1Q f6+ Kh7 Bc8 Bd5+ Kf5 Qd4 f7 Kg7 Rb1 Na1 Rb6 Bg5 Ra6 Qe5+ Kg4 Rb3 f5 Ra3 Ng6 Bf4 f8B+ Kf7 f6 Re7 Bf5 Rb3 Be4 Ke6 f7 Re8 N6e7 Ra3 Ngf5 Rhb3 Bg7 Bh2 Kg5 Bf4+ Kg6 Bh2 Bfg2 Bf4 Rf1 e1B f8Q Beg3 Bf6 Bh2 Ng3 Qd4 Bg5 Ke5 Kg7 Qe3 Rf2 Kd4 Bf5 Qe1 Bf6+ Qe5 Bc1 Kc3 Bd2+ Kb2 Re2 Qc3 Bf1 Qd4 Nc8 Ree3 Nce7 Qe5 Qh7 Rec3 Re4 Re3 Qh5 Qc3 Re6 Qd4 Ra4 Qe5 Ra6 Ne8+
2k2q1N/3b1qNr/1p3RRn/r1bQn3/1R5q/1B1N1r2/Q1bBr1N1/3N2QK w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 f4 e5 Kf2 c5 a4 h5 g4 e4 Kg2 b6 g5 c4 a5 c3 f6 b3 d6 c2 a6 b2 a7 e3 d5 e2 g6 e1Q f5 Qee7 f7 Qee8 g7 Qe6 f6 Na6 Nh3 Nb8 Rg1 Nh6 g8Q Na6 Nf2 h3+ Kh1 h4 Ra4 h2 Bd2 c1Q Bc4 Rh7 Bb3 Qee7 Rg6 Qee8 Nc3 b1R Nd3 Qc2 Qg1 Qde7 Rb4 Rb2 Nd1 Kd8 d7 Nb8 Be1 Qe6 Bd2 Bc5 f8N Nc6 f7 Kc7 d8N Bd7 d6+ Kc8 Qe1 Qf5 Nde6 Ne5 Nef4 Qc4 N8e6 Qf8 Ng7 Rc2 Qg1 Rc3 Kg2 h1B+ Kh2 Bd5 Ng2 h3 Kh1 h2 N1f2 Qd8 f8R Qh4 Rff6 Qf8 Nd1 Be4 Qd5 Qe6 Qf2 Qef7 Qg1 Rb8 a8Q Bef5 N3f2 Rf3 Qa2 Bc2 Nd3 Ra8 Rg5 Bh3 Rgg6 Ra5 d7+ Kb8 d8N Bd7 Qc4 Kc8 Qd5 Re3 Nge1 Rf3 Kg2 Q7e8 Nf7 Qee7 Nh8 Qef7 Qgd4 h1R Qe3 Rhf1 Qg1 Qd4 Kh2 R1f2+ Ng2 Re2 Kh1 Qh4+
1nNnbkBK/3nqr1p/2Q5/1Bq2NR1/R3Nr2/2B5/Rb1bq3/Q3nR1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 f5 d4 c5 e4 a4 b4 a3 g4 c4 d6 a2 g5 c3 g6 h3 d7+ Ke7 g7 h2 d5 c2 b6 Ra5 b7 Rb5 d6+ Kf7 e5 Qf6 d8N+ Ke8 e6 Bd7 e7 Re5 b5 Qh6 b6 Nf6 g8B Qg5 Nd2 Re4 Nf7 Bg7 Bb2 c1B Ne2 Bh6 Rb1 a1N Bc3 Nb3 Nd4 Na5 Bb5 Bb2 Qg1 Qh4 Rf1 Nac6 Qg7 Nd8 Qg1 Na6 b8R Qg5 Ra8 Nb8 b7 Qg7 Kf2 f3 Ra4 Rf4 Ke3 f2 Ne4 Bc6 Ra2 Nfd7 Ra4 Qe5 Ra2 Qc5 Ra4 Na6 b8R Bg5 Ra8 Nab8 Ra2 Bh6 R8a4 Bg5 Rd1 f1N+ Kd3 Nd2 Rf1 Nf3 Ke3 Rg4+ Kd3 f4 Nf5 Nd2 Qd4 f3 Qe5 f2 Qf6 Qa3 Kd4 Rf4 Qe5 Nc4 Qg7 Ne3 Qf6 Ng2 Qg7 Nc5 Ke5 Ne1 Qf6 Bh6 Qg7 Qb4 Kf6 Qa3 Qg1 Bg5+ Kg7 Ncd7 Qg4 Qc5 Qd1 Rf3 Qa1 Bd2 Ne5 Rf4 Nc4 Be3 Nb6 Bd2 Rfg1 f1Q Nc8 Qff2 Rg5 Qe2 Rg4 Nf8 Rh4 Be3 Rg4 Nf3 Bgc4 Nf7 Rf1 Bd7 Rgg1 Ne1 Nh6 Qf5 Bd5 h1Q Bdc4 Qh4 Rh1 Qc5 Be6 Ng6 Bec4 Rf8 Bb3 Nd8 Bg8 Ne5 Kh8 Bd2 Ng5 Bc6 Ne4 Kd7 e8R Nb7 Re7+ Kd8 Rg7 Ke8 Nf5 Qe7 Rg5 Rf7 d7+ Kf8 d8Q+ Be8 Qc7 Nd8 Qc6 Ned7
5nKn/B4pr1/1q1Qb2b/q4Q2/n7/1kNBr1n1/R1NBQ2Q/3NqRbQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 e4 a5 g4 c5 g5 c4 d6 h3 d7 a4 g6 c3 d5 h4 d6 f3 b6 c2 b7 f2 g7 a3 Bd3 f1N Ra2 h2 Bd2+ Kb3 Ne2 h3 Nbc3 Ne3 Rf1 Ne7 Kf6 h1N g8Q h2 e5 Na6 b8Q+ Qb6 d8N Ng6 e6 Nf4 e7 Nc7 e8Q Nce6 d7 Ng3 Qg5 h1Q Nc6 Bh6 d8Q Rh7 Nb4 Ng6 Qf5 Nc4 Qdd6 Nef8 Qa1 c1Q Nc2 Be6 Nd1 Qd5 Nec3 Nh8 Ke7 Qa5 Kf6 Bd7 Qe2 Be6 Qbc7 Re8 Qb1 Nh1 Qdh2 Ng3 Qd6 Qc6 Qa1 Nb6 Qb1 Na4 Qa1 Be3 Qb1 Bg1 Qa1 Rh4 Kg7 Qcb6 Kg8 Rh7 Nf2 Bc8 Bg5 Qbb4 Rd1 Qbb6 Nd5 Qd4 Qb1 Re4 Ra1 a2 Bd2 Re3 Re1 Be6 Rd1 Nc3 Re1 Ka4 b4 Qd1 b5 Qc5 Qc1 Kb3 b6 Na4 b7 Qcc7 b8B Qcb6 Nh3 Bf2 Ba7 Qbc5 Nc3 Qcb6 Qef3 Qe2 Qd1 Qf1 Qfh1 Bg1 Qde2 Qf2 Rf1 Qe1 Ne4 Qac5 Nhf2 Qca5 Rc1 a1B Nd1 Bd4 Ra1 Bg7 Ra2 Bh6 Nec3 Rg7+
4r3/1Q2bk1B/N1N2rnr/B1Br1N1r/Q2q4/R2Q1r2/b2pN3/K1n2NbR w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 b4 d5 c4 h5 Kc2 e5 Kb2 a4 g4 d3 f4 h3 b6 h4 b7 d4 c5 d2 c6 d3 c7 h2 g5 h3 f6 e4 f5 e3 f7+ Ke7 g6 e2 g7 e1B b5 Ra6 b6 Nd7 b8N Ne5 b7 Rf6 Ra3 Be6 c8Q Bf2 Ne2 Bg1 Na6 Ba2 b8N Qd4+ Qc3 Rhh6 Ka1 Rh5 Qb3 d1R Nd2 Rh8 Bg2 Rf1 Qcb2 Rf3 Nf1 Rh5 Be3 d2 Qd1 Nd3 Nc6+ Kd6 Bg5 Be7 f8Q Nc1 Qf7 Kd7 Qfb3 Ke8 Qd3 Kf7 Bf4 Rg5 Bc7 Rh5 Ba5 Rg5 Rc3 a3 Qb6 Bc5 Qb7+ Ne7 g8N Rh5 Bc7 Ng6 Qa4 Rh8 Nge7 Re8 Nd5 Be7 Nde3 Be6 Ba5 a2 Qc8 Rf2 Be4 Rf3 Kb2 a1R Qb7 Ra3 Kb1 Ba2+ Ka1 Rd6 f6 Rd5 Nf5 Rb3 Bc7 Rb6 Bd8 Ke6 f7 Kf6 f8B Kf7 Ncb4 Rf6 Ba5 Be3 Rg1 h1R Nc6 Rh2 Rh1 Bg1 Nab4 Rhf2 Na6 h2 Bh6 Rh3 Be3 Rff3 Bf2 Rh5 Be3 Qe5 Bc5 Qd4 N5g3 Nh4 Bh7 Ng6 Nf5 Rg5 Qdc4 Bf2 Rg1 h1R Qd3 Rh6 Rh1 Rgh5 Nf4 Qe3 Ra3 Bg1 Ne2 Qd4+
2B1N3/2Rr4/1q1Q4/RKn2QNp/4rrB1/QnB1bBk1/b2b1R2/1r1r1B1r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 h5 e4 f5 b4 a5 g6 d3 b6 d5+ Kb5 d2 c4 d4 g7 d3 g5 f3 c5 Kf4 c6 a4 c7 f2 g6 a3 b7 a2 e5 Ne7 g8Q Ra7 e6 Ra8 g7 Nd7 b8Q Nc6 e7 Qe8 Qdb3 Rh7 Qgd5 Nc5 g8B Ra4 Be6 Qf7 e8B Bh6 Rh2 Kg3 Nf3 d1R Nbd2 f4 Qa3 Na5 Bc6 Nab3 Nc4 d2 Ng5 f3 Bb2 Rb1 Bc3 d1R Bg4 Be6 c8B+ Qc7 Nd6 Rd7 Qf5 Qa7 Qb6 Bd5 Ne8 Bg8 Bd3 f1R Rf2 Rh1 Bf1 Bf7 Rh2 f2 Bcf3 Re1 Qbe6 Re4 Qd6+ Rf4 Kc6 Bg8 b5 Re4 b6 Rd1 Rc1 a1B b7 Bb2 Rc2 Bc1 b8R Be3 Kb5 Rb1 Ra8 Be6 Bd3 f1R Rhf2 Rfd1 Bf1 Na1+ Qb2 Ba2 Qb4 Nab3 Qa3 Qc7 Ra5 Qa7 Bb4 Bg7 Rc1 Bc3 Rcc2 Bcd2 Rc4 Na6 Rc7 Nac5 Bc3 Qb6+
BNR1R1nR/1QNK3r/1rn2BBr/1n3n1R/2bb4/2bp4/k2q2R1/2rN3Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 a5 b4 d3 c4 e6 g4 a4 f4 a3 f6 h3 f5 d2 g5 a2 b6 h4 c5 h2 b7 d4 g6+ Ke8 b5 Kd7 c6+ Kc7 g7 Kb6 c7 Kc5 f7 Kb4 f6 d3 b6 h3 Nf3 Rh6 Nc3 Ra6 Ng5 Bc5 f8R Bg1 Qf3 Kb3 f7 d1N Bb2 Be3 Rg1 h1R Re8 h2 f8R Qf6+ Kd6 e5+ Ne6 e4 Rg3 Bd4 Rg2 Nc6 b8Q e3 b7 e2 Qa8 e1N b8N Ne3 Nd1 N1c2 Qb7+ Rb6 Qe4 Bd7 c8R Qg5 Qh4 Rh7 Nc7 Be6 Qh3 Bd5 Kd7 Na3 Be2 Bf7 Bh5 Bc4 Bg6 Nb5 Rf5 Qf4 Rh5 Nf5 Rc1 a1B Rcc2 Nge7 g8B Qd2 Bd5 Ka2 Rh8 Rf1 Rce8 h1R Qf3 Rh4 Qh3 Rh6 Qh1 Ng8 Rc1 Bg1 Bf6 Bgd4 Bf3 Bac3 Qc8 Nce7 Ba8 Rh2 Qb7 Rh7 Rhg5 R2h6 Rh5 Nc6+ Kc8 Bd5 Ne3 Bb2 Ne6 Nce7+ Kd7 Rg1 Rc2 Rc1 Rcc8 Bc4 Nc7 Bbc3 Nd1 Nc6+
r1n1BQ2/2nRr2p/1k1K3Q/3BQNn1/q3r1b1/3brBb1/b1RR1B2/4NB2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 Kf3 d5 b4 Kd7 g4 Kc7 c4 f5 e4 a4 c5 d3 b6+ Kb7 e5 a3 g6 d4 e6 d2 g5 d3 b5 a2 e7 Ra5 e8B Bd6 g7 Ra3 g6 Qd7 Rh2 Na6 Nc3 Nf6 g8B Rb3 g7 Ne4 Nce2 Nc7 Nd4 Rc3 Qb3 d1R Be3 d2 Qe6 Re1 Qh6 d1N Rd2 Rc4 Be6 Ndc3 Rad1 a1R g8B Ra3 Bf2 Qc6 Bd5 Ng5+ Kg2 Bd7 Ngf3 Re7 Ne1 Rca4 Bf3 Be5 Nb3 Re4 Nd4 Be6 Bgf7 Ba2 Bd5 Rf8 Bef7 Rfa8 Be8 Nb1 Kh2 Rae3 Kg2 Na3 Kh2 Kb8 b7 Ka7 b8R Qa6 c6 Qa4 Rc8 Kb6 Kg2 Ka5 b6 Nab5 b7 Na7 b8Q Bd6 Qb2 Be5 Qa1 Kb6 Rd8 Bd6 Rc2 Be5 Rd7 Bd6 Bfh5 Be5 Rdd2 f3+ Kh1 f4 Kh2 Bd6 Nf5 Be5 Bh4 Bd6 Qe5 f2 Kg2 f3+ Kg3 Nce6 Qf4 Be5 c7 Bd6 c8Q Nc7 Bg2 f1B Qe5 f2+ Bhf3 Ba6 Bf1 Be2 Qd8 Re6 Qdf6 Re7 Qff8 Bd1 Bh3 f1B Bg2 Bfc4 Bh3 Re2 Bf1 R4e3 Kf4 Bd3+ Nd4 Re4+ Kf5 R2e3 Bf2 Ka6 Kf6 Ka5 Nf5 Kb6 Qc3 Bg3 Qe5 Rg7 Bh1 Bg4 Bf3 Rg6+ Ke7 Rf6 Qhg7 Rf7+ Kd6 Re7 Qh6 Nc8#
3nBk1q/QRQqr1N1/1b1r2r1/5q2/R4Nn1/B1N1N2b/K1N1p1qr/Q5R1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 a5 Kd2 h5 Kc2 c5 Kb3 e5 g4 c4+ Ka2 c3 f4 c2 b4 h3 b6 e3 b7 h4 d6 e2 g5 e1R b5 e4 g6 a4 b6 a3 f5 h2 d5 e3 f6 h3 g7 Ra5 d7+ Kf7 d6 Rh7 Bb5 e2 Nf3 Qe7 d8Q Nd7 b8R Ra6 b7 Ne5 d7 Nh6 g8N Rd6 Qc7 Neg4 Rg1 h1R Nd4 h2 Nc3 Rf1 Bb2 c1Q Nc2 Qg5 Bc1 Qd8 Ne7 Qf5 Ned5 Rg7 Nde3 Rg6 Qd4 Rf4 Qe5 Re4 Bc6 Qe7 d8N+ Kg8 Ne6 Qd7 Bb5 Nf7 Ng7 Nd8 Ba4 Be7 f7+ Kf8 Qea5 Bf6 Qa7 Bd4 Qa8 Ke7 f8N Bb6 Nfe6 Re5 Nf4 Kf8 Kb3 a2 Ba3 Re7 Kb2 Qde6 Be8 Qd7 Rad1 Qf6 Rd4 Qff5 Ra4 a1Q+ Kb3 Qf1 Ka2 Qh3 Qa5 Qhh5 Ra8 Qh8 b8Q Bb7 Qba7 Bg2 Rb8 Bh3 Rg2 Rb1 Rb7 h1Q Rg1 Qg2 Qe5 Rf1 Qd4 Rf2 Qd1 Qge4 Qc1 Rh2 Qa1 Qg2
q1N1Q3/2RrR1bn/2BRb3/1RK5/1q2B1qk/3r1Rp1/1BQqb2b/4NnQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 h4 a5 d4 c5 b4 g5 e5+ Kf5 d6 f6 b6 c4 d7 a4 b5 c3 e6 a3 e7 c2 e8B f3 Ke3 g3 d5 Kg4 Kd4 g2 h5 a2 h6 f5 b7 f4 b6 Qc7 d8R Ra3 h7 Nh6 d6 Qd7 Bd3 Bg7+ Kc5 Nf5 Bb2 c1Q+ Nc3 Qd2 Na4 Ne3 Be4 Nf1 Rh3 Rd3 Qc2 f2 Nf3 g1B Ne1 Bh2 Rf3 Kh4 Rc1 Qg4 B8c6 a1Q Re8 Be6 Re7 Rd8 d7 Qb1 Rg3 f3 h8Q+ Bh6 Qg8 Bg7 Nc3 Qa2 Nb5 Qa8 Nd6 Qf5+ Bed5 g4 Nc8 Qf8 Be4 Qff4 Rg2 g3 Qe8 Qg4 Rg1 Ne3 Rg2 f1B Re2 Nf5 Re3 f2 Rf3 Ne3 Bcd5 Nc6 b8R Nd4 b7 Be2 Bc6 f1Q Qg6 Rf8 d8R Rf7 Rd6 Qf2 Qf5 Nf1 Qf4 Qg1 Qe3 Qg2 Qg1 Qa4 Rc7 Rd7 Rb1 Qh1 Ra8 Qb3 b8Q Qb7 Ra3 Qa8 Rf7 Nf3 Re7 Ng5 Rb3 Qg2 Rb5 Qdf4 Ra1 Nh7 Ra3 Rd1 Rf3 Rd3 Na7 Qd2 Qe8 Q2h3 Nc8 Qgf4 Bg6 Qhg4 Bf5 Qfa4 Bfe4 Qab4+
r1RNKn2/nNB1b1R1/r1R1Q3/R4bR1/1p6/q2qQ2Q/rk2b2N/r4Bb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 b5 a4 c5 f4 e5+ f6 h5 Kg6 e4 Kf7 h3 d6 b3 a5 e3 a6 e2 f5 e1B d7 b2 a7 b4 g5 c4 g6 h2 g7 h4 Qg4+ Kd5 d4 h3 Ra6 c3 Rc6 c2 Na3 b1Q Nc4 Qb2 Bf4 c1R Na5 Rh6 Nb7 Rc5 Bc7 Rh7 Nf3 Bd2 Rg1 h1R Nh2 Be3 Qg3 Ke4 d5 Kd4 d6 Kc3 Qh4 Be7 Rg5 Bg1 Qg3+ Kc2 Qe3 Rh6 Qe6 Bf8 Qe3 Ne7 g8R Qa1 R8g7 Ng6 Qe6 Be7 Qe3 Qh8 d8R Nf8 d7 Qa3 Ke8 Qh7 f7 Kb2 f6 Qhd3 Qe6 Ra5 Qe3 Ne6 f8Q Ra6 Qf7 Nf8 Qfe6 Rh7 Rc3 Nc6 f7 Rh4 Rcc5 Rc4 Ra5 Rc1 Rac5 Ra1 Rc4 Ra2 Rc1 Rb8 a8R Na7 Rc6 Nb5 Nf3 h2 Ra7 Ra8 Qh3 Rb6 Ra5 Na7 Qee6 Ra6 Qe3 Bf2 Qhe6 Rg1 Qh3 h1B Nh2 Bf3 Qhe6 Ng6 f8Q Be2 Qh8 Nf8 Qhh3 Rh1 Bg2 Rb1 Bf1 Bg1 Nc5 Bb7 Rc8 Re1 d8N Rea1 Rd6 Bg2 Rc6 Be4 Ncb7 Bf5
k1rN1b2/2B5/4b1Q1/p1n1rQN1/1r1BR1N1/2qQn2r/Qqn2RB1/n1Q2K2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 b4 f5 g4 a5 e5 c5 g5 Kc7 b6+ Kb7 d6 c4 d7 h3 g6 c3 b5 h4 d5 f3 g7 h2 d6 c2 e6 f4 e7 h3 e8Q Na6 Nd2 Ne7 g8Q Nc5 Qeg6 Rh5 Ra4 Rd5 Bg2 f2+ Kf1 Qc7 d8Q Nc6 d7 Re5 Bb2 c1Q Ngf3 Nb4 Nc4 Nc2 Bd4 Qb2 Ne3 Na1 Qa2 Kb8 Rg1 h1R b7 h2 Ng5 Qc6 Rc4 Qf3 Ng4 Qfc3 Qdf6 Ka7 d8Q Be6 Qff5 Rc8 Qc1 Kb8 Ne4 Ka7 b8N Ka8 b6 Nc2 Ke2 f1N Nc6 Nd2 Rf1 Ndb3 Rf2 Nba1 Qd7 Rd1 Nd8 h1R Qb5 Rh3 b7+ Ka7 b8B+ Ka8 Qd7 Rd2+ Kf1 f3 Ra4 Re2 Ng5 R2e4 Bc7 Rf4 Be3 Rb4 Bd4 Ne1 Re2 Nec2 Re4 f2 Ra3 Qd2 Rf3 Qdc3 Qb5 Rh2 Qd3 Rh3 Ke2 f1N Rf4 Nd2 Rf2 Nc4 Kf1 N4e3+
1Q2b1bR/R3qr1B/qp2N3/4q1BN/R3bN1q/3R2K1/1knn2Br/b1R1Q3 w - - 0 1 illegal: No possible last move
1nB5/bq1qb1NQ/1QR3RK/7N/RB1Q2n1/1Rp5/3R1prq/n1krN2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 Ke5 e4 Kd4 g4 h5 e5 c5 b6 f5 d6 a5 b5 h3 b7 h2 g5 c4 b6 a4 g6 a3 d7 h4 e6 c3 e7 h3 e8N a2 g7 Bd6 Ba3 Na6 b8Q Nf6 g8Q Ng4 b7 Bc5 Bb4 Ba7 Ne2+ Kd3 Qh7 Rg8 Rg1 h1Q+ Bg2 h2 Ng3 Qe7 d8R+ Qd7 Nh5 Rg5 Qc7 Nb8 Na3 Rg7 Nc2 Rg8 Rb1 a1B Rb3 Bb2 Qb6 Bc1 Neg7 Ba3 Ba5 Be7 Bb4 Qd6 Rf8 Qd7 Rf6 Rd8 Rc6 Rg8 Rf1 Qg1 Ra3 h1Q Ra4 Qgh2 Re1 Rd8 Ree6 Rg8 Qdg1 Rd8 Qgc5 Qb1 Bh3 Qb2 Ne3 Qb3 Ng2 Kc2 d4 Kc1 d5 Rg8 Ke2 f3+ Kd3 f2 d6 f1N Ne1 f4 Ke4 f3 Kf5 f2 Kg6 Qd5 Qd4 Nfe3 Rf6 Nc2 Re6 Na6 b8R Na1 Rf6 Qb7 d7 Qb5 d8R Be6 Rc7 Bd5 Rcc6 Bh1 Rd5 Qd7 Rb7 Rad8 Rfe6 Ne3 Kh6 Nb8 Rg6 Qa6 Rbc7 Qb7 Rb5 Qe8 Bc8 Rd6 Rd7 Rd5 Qh4 Rd1 Rd2 Qed7 Qhd4 Rf8 Qh8 Rf4 Qh7 Rg4 Bd6 Rg3 Rb3 Rg2 Bb4 Ng4+
R1RKQ1nb/3N3N/2r1N1n1/2q1rQ2/b1n1p1N1/1q1q1p1B/kBNr3Q/3R4 w - - 0 1 illegal: No proof kernel
r2b1nBN/1q1Q2K1/3Bq3/5R1Q/1Bpn1Rbp/b2n3R/4qB2/1rk2NBQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 h5 g4 f5 d4 c5 d6 a5 d5 f3 d7 f4 g5 h3 b6 h2 b5 a4 e4+ Kb4 g6 f2 d6 h4 b7 a3 g7 f3 b6 a2 Nh3 Ra3 Bc4 f1N Ng5 f2 Nd2 Kc3 Nf7 Ne7 Kf6 Rh7 g8R Qe8 d8B Ra6 d7 Ng3 e5 Ra3 e6 Ngf5 Rg5 f1Q Nh8 Ra8 Ba3 Ng6 e7 Qf2 Bg8 Nc6 b8B c4 b7 Nce5 Ba7 Qf4 b8B Qf1 Bdb6 Nd3 d8Q Qe2 Qb1 Qd7 e8Q Rg7 Rf1 h1Q Rf4 Qhb7 Qe1 Bc5 Bd6 Nf8 Qh5 Kc2 Rd1 Bb4 Bd4 Ba5 Bab4 a1B Qc7 Qde8 Qf1 Be6 Qd7 Bb2 Qg2 Bc7 Rh1 Ba3 Rh3 Ba5 Qh1 Bb6 Qh7 Bc7 Rh5 Rg1 Bac5 Rc1 Nf1 Rb1 Bg1 Kc1 Bcf2 Nd4 Kg7 Bg4 Rhf5 Bd8 Qh5 Q8e6
Q4Bkb/brq3B1/bB2n1Rn/B1Q1p3/4p3/2qBQN2/3RK2q/1R1n2rN w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 a5 d4 c5 b4 e5 g5 h5 g6+ Kg7 f5 a4 b6 c4 d6 a3 d5 h3 d7 h4 b7 a2 d6 c3 b5 c2 b6 h2 Qd4 h3 Nd2 Ra6 f6+ Kh6 g7 Kh7 f7 Qe8 d8B Ra3 d7 Nc6 b8Q Qe7 b7 Nh6 g8R Bg7 f8B Rg3 Ba5 Nd8 Qc7 Ne6 b8Q Ba6 Ne2 Rg1 Rb1 a1Q d8B Qc3 Qcc5 Qc7 Ng3 Bf6 Ba3 c1B Rg6 Rg8 B3b4 Rg7 Qe3 Kg8 Qa8 Bb2 Kf2 Bc1 Nf3 Bd2 Qd3 Be3+ Ke2 Bf2 Qcd5 Ba7 Qc5 Kh7 Bb6 Rd7 Bde7 Bh8 Bf6 Rg7 Rd1 Kg8 B4a5 Qc8 Re1 Rg2+ Ke3 Qb8 Rg1 h1N Rd1 h2 Rd2 Nf2 Be2 h1Q Rb1 Qh2 Nh1 Rg1 Bf1 Qb4 Qdd4 Qd8 Bd3 Qc3 Ke2 Nd1+ Nf2 Kh7 Qe3 Rb7 B6g7 Qb8 Qc7 Kg8 Qcc5 Qh5 Nh1 Qc7 Rb3 Qh3 Rb1 Qh2+
bb1RB2r/3B4/qNQR1nQN/1nnppR2/q2N2B1/8/1r3q2/k1KbBB2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 c4+ Kd6 c5+ Kd5 g6 a5 f5 e5 g5 h4 f6 d6 f7 d3 g7 Kd4 g6 d5 b6 a4 b7 h3 b5 a3 b6 a2 c6 h2 c7 Bf5 c8B Qh4 Nf3+ Kc4 Ng5 Ne7 g8B Nd7 b8Q Rh5 b7 Rh6 g7 Nf6 Qd6 Rh8 b8R Nc6 Nc3 Na7 Qc2 Nb5 Bd7 e3+ Kd1 Qf4 Rd8 Qf2 Bd2 e2+ Kc1 e1N Qc6+ Kd4 Rg1 h1Q Na4 Rb8 Nb6 Bd6 f8N Qhh4 Bge6 Rb7 g8B Bb8 Rb1 a1Q Nf7 Qa6 Rg5 Bg6 Nh6 Be8 Ba5 Qg4 Bgf7 d2+ Kb2 d1B Kc1 Qgh4 Qg6 Qe4 Rb3 Qg4 Rf5 Nd3+ Kb1 Nc5 Kc1 Qgh4 Rb4+ Kc3 Rg4+ Kb3 Be1 Ka2 Rgf4 Ng8 Rf6 Ka1 Bg4 Ne4 Rd6 Nc5 Rf5 Nf6 Bge2 Qha4 Ne6 Na7 Nd4 Nb5 Bde6 Bd7 Be8 Bc8 Bg4 Bd7 Qc7 Bc6 Bc8 Qg2 Bcd7 Qf2 Nc4 Rb6 Qc8 Ba8 Qc6 Rb7 Nb6 Nc7 Nc4 Rb2 Nb6 Nb5
rb5B/1kb3qN/2qB2B1/q1pQ1n2/2BN2Q1/QbN2R1p/3RBn2/2Kr1r2 w - - 0 1 illegal: No possible last move, all moves rejected
4bNnk/1K2r3/N2pB2q/b1b2R2/1R3qr1/B1rRQp1B/1n2Q1q1/Q3QQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 Kd3 Kf7 Kc4 g5 Kd5 Kg7 e4 a5 b4 d6 h4 f3 c4 f4 e5 g4 e6 g3 c5 g2 e7 f2 e8Q d3 h6+ Kh7 b6 d2 h5 a4 b7 a3 b5 a2 c6 f3 b6 Qh4 c7 Qe7 Ne2 g1R Nd4 Na6 Kc6 Qf6 b8R Be7 b7 Rg4 Qe1 d1Q Nd2 Qe5 Bh3 f1Q N2b3 Be6 c8B Rg3 Nc5 Qc4 Ba3 Qde2 Rd1 a1B Rd3 Bf7 Ne6 Nf6 Nf8+ Kg8 Bcf5 Q5e3 Be6 Qcf4 h7+ Kg7 Rg1 Bd8 Rg2 Rg6 Rg5 Ra7 Rf5 Qg2 Qe2 Ba5 Qf1 Nc7 Na6 Ng8 Qe7 Rg3 Qh4 Rg4 Qhe1 Be8+ Nd7 Qfg3 Rg5+ Bg6 Rd4 Ne8 Rgd5 Nef6 Rf4 Ne4 Rff8 Bf7 h6+ Kg6 Rd4 Ngf6 Rd1 Rg8 h8Q Nc3 h7 Qh6 Rd5 Na4 Rd1 Nd5 Qhc3 Nf6 h8Q Qgf4 Qce3 Bd4 Rd3 Rg7 Qe1e2 Ng8 Qee1 Be8 Rf5 Rh7 Qe1e2 Bdb6 Qha1 Re7 Qae1 Bf7 Nf8+ Kg7 Rc8 Ra8 b8Q Kh8 Qa1+ Bd4 Qb4 Nb2 Qbe1 Bdb6 Rb8 Be8+ Bd7 Bd4 Rb4 Rc8+ Kb7 Rc1 Rc5 Rc3 Rf5 Bc7 Bc8 Bc5 Be6 Ba5+
n1B1b1k1/1pN3B1/q2rq2Q/2Nrqn2/2KnQ1Nb/1Q2R1b1/p3B3/1NR3N1 w - - 0 1 illegal: No proof kernel
bn3Q2/1p1n2bQ/rn1N2RB/3b1qqQ/3p1q2/1RR1B3/kr1QQ1BN/3K4 w - - 0 1 illegal: Other
6n1/p3B1QR/4R2r/n3p3/nRB2q2/QQN1RRqq/1NKbN2k/3r1b1r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kg6 Kd2 Kg5 f4+ Kf6 b4 h5 f5 Kg5 d6 Kf4 d7 Kg3 d5 e5 d6 c5 b6 e3+ Kc2 e2 f6 e1R b5 h3 g5 c4 b7 h4 b6 c3 f7 h2 g6 h3 g7 Qg5 d8R Bd7 Qd3+ Qe3 Ra6 Nh6 g8Q+ Bg7 f8R Rd1 Ba3 Nc6 b8R Na5 b7 Bb5 d7 Qf3 Qf7 Ng8 Be7 Bh6 Re6 Bd2 Qe3 Rh4 Bc4 Rh6 Ne2+ Kg2 Qd3 Qg3 Qg7 Ba6 Re1 h1Q Rf3 h2 Qd6 Bb5 Qa3 Qf1 Re8 h1N d8N Nf2 Nf7 Nd3 Nd6 Nb2 Ref8 Kh1 R8f4 Kh2 Rh4+ Qfh3 Rh5 Rg6 Rh7 Ba6 Rc8 Na4 b8Q Rh6 Qbb3 Bb5 Rb8 Ba6 Rb4 Rd8 Kd3 c2 Nbc3 c1Q Ng1 Qhg4 Ree3 Q4h3 Nge2 Rf8 Ndb5 Rh1 Nd1 Ra8 Nb2 Rd8+ Bd5 Qcf1 Kc2 Qff2 Nbc3 Bc4 Nc1 Bf1 N1e2 Qf4 Bc4 Q2g3 Ne4 Bc1 N4c3 Rd1 Bc5 Bd2 Bd6 Nb7 Be7 Na5
n1B1nQKB/6b1/1p1QNN2/nk2rn2/2R4r/p5Rb/1B1n1q1N/2Qr2NN w - - 0 1 illegal: No proof kernel
2bnN1q1/1B3Qr1/Qn1Nb1Nr/4B2p/1bn1NR2/2RBkpn1/1R4KN/7r w - - 0 1 illegal: No possible last move, all moves rejected
3n1R1Q/NR3R1n/2Bkn1bb/N1bp1rN1/4r3/2p5/1QqB2Br/K1N3Nb w - - 0 1 illegal: No proof kernel
1nRb3Q/R1b2rr1/1B1pbB1N/2nNn2k/1N1KR3/1Np1Qn2/1rN5/4qB2 w - - 0 1 illegal: No proof kernel
2NQnkb1/bB3q2/1nR1QR2/R2n2rn/N2Q1Qp1/2K3B1/1p1nB2Q/4r1q1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 a4 g5 h4 c5 d4 e5 Kd2 b5 f4 c4 f6 e4 h5 b3 a5 g3 f5 b4 d6 b2 d7+ Kf7 d5 g2 a6 b3 h6 g4 d6 Qe8 a7 Be7 Na3 b1Q h7 b2 Ne2 g1N Qe1 Nh3 Nc3 Nf4 Nab5 Qf8 Rh6 e3+ Kd1 e2+ Kd2 Bd8 Ra5 Bb6 Na4 Qa1 Kc2 c3 Be3 Bb7 Bf2 Bd5 Bg3 Ba2 d8R Bd4 Rc8 Nd7 Rc6 Re8 a8B Ba7 Bb7 Nb6 d7 Be6 Qf2 Nfd5 d8Q e1N+ Kb3 c2 Qh2 Ng2 Qc8 Ndf4+ Kc3 c1N Qd8 Nh5 Bd3 Bb8 Na7 Ngf4 Nc8 Ba7 Qd5 Nb3 Qe5 Rd8 Be2 Qg1 Qd5 Ke8 Qd6 Bf7 Qe6+ Qe7 Rg6 Rd1 Rh6 Nd2 Rg6 Re1 Rh6 Bg6 f7+ Kd8 f8Q+ Be8 f6 Nfd5+ Kc2 Qg7 f7 Ngf6 Rg6 Rg8 h8Q Qh7 Qc5 Rg7 f8Q Qg8 Rh6 Rg5 Qc3 Qg7 Qcb4 Qg8 Qfc5 Bf7 Qf4 Qe8 Qhf8 Bg8 Q8d6+ Qd7 Qcd4 Ne8 Rf6 Nec7 Qef5 Ke8 Kd3 Qf7 Qfe6+ Ne7 Qd6d5 Kf8 Kc3 Ne8 Qd8 Ned5+
3bb3/q2NNB2/2bkB3/R3nqpb/QprKQ3/BRNRN2r/3N3b/1n6 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 a4 g5 h4 b5 d4 c5 h6 b3 d6 c4 a5 b2 h7 c3 a6 b4 e5 f3 Ke3 c2 d5 f4+ Kd4 f2 e6+ Ke8 e7 Kd7 a7 f3 h5 Qa5 e8B+ Kd8 h6 Nf6 d7 Ke7 d8N Bg7 d6+ Kf8 d7 Ke7 Nf7 Bb7 d8R Ne4+ Ne5 Nd2 Bh3 f1B Nc3 b1B Bf7 f2 Ba3 c1B Nf3 Bg6 Bhe6 Bf6 Qa4 Bc6 Rh3 Nb1 Nd2 Be2 Rd5 Rc8 h8N f1Q h7 Beh5 Rd3 Qa6 Ra5 Nd7 Ra2 Rc7 Rb2 Kd6 Rb3 Bd8 Ng4 Ne5 Ne3 Rb8 a8N Qf5 Nb6 Qa7 Rc5 Rcc8 Nd7 Rb6 Ra5 Rb5+ Nb6 Rc5 Nd7 Rc7 Bg8 Be8 Ng6 Rb7 h8Q Rb8 Qh7 Ra8 Ndf1 Rb8 Bgf7 Bd2 Ned5 Bf4 Nge7 Bh2 Nde3 Rbb5 Ned1 Qf6 Nd2 Rd5+ Ke4 Qf1 Rh3 Rbc5 Qf5 Rd4+ Ke3 Rh4 Qe4 Qf3+ Kd4 Qf5 Rd3 Rh3 Ne3 Rc4#
4b3/2B2Q2/K1kppqN1/B1N2BrQ/2Bn1Nr1/R2bRb2/Qq1b4/5bBn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kd3 a5 Kc4 d6 g4 Kd7 f4 a4 b4 h3 b6 h4 Kb5 a3 c4 a2 c5 h2 f6 d3 c6+ Ke6 f7 Kd5 f5 h3 b7 d2 c7 Rh7 f6 Rh8 g5 Bh6 f8N Bg7 g6 Nd7 b8B Bh6 f7 Be3 g7 Ngf6 g8Q Ra4 Ba7 Ne5 Ne2 Nf3 Ng6 Bf5 c8B Rh5 Bd7 Bg5 Bg1 Ne4 Bc8 Nf2 f8Q+ Be6 Qf4 Bf7 Bf5 Bh6 Bb2 Rg5 Bc3 Qf8 Kb6 Nd4 b5 e6 Ba5 Rb4 Ka6 Be8 b6 Qf6 b7 Kc6 b8B Rc4 Qc2 d1B Nbc3 Ra4 Qb2 Bc2 Qh8 Rb4 Re1 a1Q Qa2 Qb2 Na4 Bb1 Bbc7 Bd3+ Ka7 Rc4 Ka6 Qe7 Qf3+ Be4 Qf8 Nb5 Bcb6 Rh5 Qab3 Qef6 Qf7 Bd2 Bc7 Rg5 Qh5 Bc2 Ra1 Rcg4 Nef4 Nd4 Bc4 Bd3 Ra3 Nd1 Be3 Nf2 Rf1 h1B Rg1 h2 Re1 Bg2 Nc5 h1B Qa2 Bgf1 Re2 Bd5 Re1 Nh1 Bg1 B5e4 Re3 Bf3
1B1rqb1R/1K2pn1Q/4b3/1kq1QRN1/1B3p2/Q2n4/Q1B3q1/1NQqqNr1 w - - 0 1 illegal: No proof kernel
1r1QN3/Q1n1Nkb1/1rb3nR/rR2n2B/2N2KNB/2pp3q/2q2B1R/N4n2 w - - 0 1 illegal: No possible last move, all moves rejected
Rrb4N/BB1KQ3/3B2Rq/3rbkn1/NnN2N1q/1p6/1r2p1qq/Q4NQ1 w - - 0 1 illegal: No possible last move
3q3Q/NnQNN1Bq/R2RR1q1/2bb1n1n/1k2B1r1/1p3rp1/Q1Q5/qQ1K4 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 d4 Kd6 a4 g5 h4 c5 h5 e5 h6 b5 f6 g3 f5 c4 f7 b3 a5 c3 h7 c2 a6 b2 a7 b4 f6 g2 Ne2 g1N Nbc3 b1Q Bb2 c1Q Nb5+ Kd7 d6 Kc6 d7 g4 d5+ Kc5 d6 e4 Nec3 b3 Rh6 g3 Bd3 e3 Be4 e2 Nd5 Na6 Ne7 Rb8 a8Q Bb7 Na7 Qg5 Ra2 Qc2 Qb1 Kb4 Ra3 Nc5 Ra6 Bd5 Be5 Qc7 d8R Nh3 d7 Nf4 Re8 Qh5 d8Q Qg6 Qd7 Qd8 Qc7 Nh5 Qac6 Bg7 f8N Nb7 Nd7 Bf8 f7 Qd3 Qcc2 Ra8 Nf5 Ne7 Bg7 Rg8 h8Q Qh7 Qca2 Rc8 Qcc2 Rc3 Rhd6 Qg6 Nh6 Nf5 Ree6 Be7 f8Q Qh7 Qf7 Qg6 Rdc6 Bc5 Rcd6 Qh7 Bf6 Rg4 Ng8 Qg6 Ne7 Qh7 Bh1 Qe4 Bg7 Rf3 Bg2 Nd4 Qf4 Qeg6 Qfc1 Nf5 Bh1 Rff4 Be4 Rf3 Kd2 Bg1 Qc7 Bc5 Qd1 e1Q+ Kc1 Qc3+ Qdc2 Qb2+ Kd1 Qa1
3kr1b1/1n1BNrqR/2R1q1R1/K3B1q1/1B1Bp3/Q1Q1b1p1/n3N1N1/n1B2n2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 c5 Kd2 g5 Kc3 a5 f4 e5 b4 e3 h4 g3 h5 e4 b6 g2 d6 g4 d7+ Ke7 h6 e2 f5 e1N f6+ Ke6 d5+ Kf7 b5 c4 b7 a4 d6 g3 Kb4 a3 b6 c3 h7 a2 Qd4 c2 Nf3 g1N Bb5 Na6+ Ka5 Ra7 b8N Ng2 Qc3 Qe8 d8R Nh6 b7 Be6 d7 Ne3 Nc6 Bc5 b8B Ne2 Ne1 Nhf5 Ne7 Nfd4 Be5 Nf1 Ng2 Rb7 Qa3 Nc3 Rc8 Ba7 d8B Nc5 Bb6 Ndb3+ Kb4 Qg8 Rc6 Ke8 f7+ Kd7 f8B Bc4 Rc7+ Kd8 Bd7 Qe6 Rc6+ Rc7 Rh5 Nb7 Bbd4 Rg8 h8Q Bb6 Bce3 c1Q Rh7 Ba7 Bd2 Bd5 Bfh6 Re8 Be1 Qg5 Qg7 Ne2 Nc3 Nec1 Ne2 Bb6 Rb1 a1Q Ka4 Qb2 Bb4 Na2 Rbc1 Qa1 Rd6 Qb2 Rcc6 Na1 Qf6 Qeg4 Qg7 Bg8 Rg6 Qe6 Qh8 Qgf6 Bc1 Qg5 Bdc3 Be3 Bcd4 Qbb3+ Kb5 Qf7 Qg7 Qbe6 Qf6 Qg7 Qf3 Bg1 Qfc3 Be3 Nc8 Nd6+ Ka5 Qb3 Bh3 Rf7 Bd7 Qe6 Ne7 Nb7+
1n1q2k1/5q2/1N6/NqRBQBq1/p1B3pB/nr1Q1R2/4r1B1/1bnRbQ1K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 d5 Kg2 f5 c4 Kf7 b4 a5 e4 g5 h4 g3 e6+ Kg7 e5 f4 h5 g4 e7 a4 e8B d3 b6 d4 e6 d2 b5 d3 h6+ Kh7 b7 Qd4 e7 Qa7 c5 Qa6 c6 Bg7 c7 Ra7 b6 Nd7 b8R Nc5 b7 Qe6 Bc6 Nf6 e8B Nfd7 Nf3 Qf7 Rh5 Nb3 Kh1 Kg8 Bd5 Bc3 Ne5 f3 Bg2 f2 Qf1 d1Q Nc6 Be1 Bg5 d2 Na3 Nc1 Na5 Qe2 N3c4 d1Q Nb6 Qb5 Ra8 Nb8 Bh4 Bf5 c8B Bb1 Bf5 Qdd3 Bc4 Qd8 Bec6 Qg5 Qd3 f1N B6d5 Ne3 Qf1 Nc2 h7+ Kg7 Ra3 Re8 Rf3 Na3 Qd3 Kf8 Qf1 Re2 h8Q+ Qfg8 Qc3 Qf7 Qd3 Kg8 Rh6 Ra6 Rc6 Qd8 Rc5 Qg5 Nc8 Rae6 Nb6 R6e3 Qc2 Rb3 Ra6 Nc6 b8Q+ Qd8 Qe5 Nb8 Ra7 Qg5 Rd7 Qd8 Bde4 Qg5 Rd1 Qd8 Bh3 Qg5 Qd3 g2+ Kh2 Qd8 Bed5 Rf2 Kg3 g1Q+ Bg2 Re2+ Qf2 Bb4 Qf1 Qe3 Kh2 Qeg5 Kh1 Be1
BN2qnq1/r1Rbk3/1Q1R2nB/RN2p2r/N1r4b/2N5/1np1QBN1/4K1r1 w - - 0 1 illegal: No possible last move, all moves rejected
1rB1K3/2rQQ3/4NQR1/2p1Q1b1/q3n1R1/r4Br1/bnbB2Np/1k3qRQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 a5 d6 f5 d5 h3 d7 h4 Ke6 f3 Kf7 h2 e5 h3 b6 a4 d6 a3 b7 a2 g5 f2 g6 f4 g7 f3 e6 Qb6 d8Q Qa7 e7 Rh4 e8B Qb6 d7 Bd6 Nc3 Rh8 Nb5 Qa7 Bg2 f1Q Nd4 f2 Nge2 Na6 b8Q+ Bb7 Qf6 Bf4 d8Q Bg5 Qbc7 Rh7 Qce7 Rb8 Qdd7 Be4 Bf3 Bc2 Rg1 h1B Ne6 Kb3 N2f4 h2 Bd2 Nb4 Rg4 Nd3 Ng2 Qa4 Rb1 a1R Qe1 Ka2 b4 Qa8 b5 Qa4 b6 Nb2 b7 Rh3 Qee5 Rg3 Rc1 Nh6+ Kf8 Nf5 g8R Nd6 Rg6 Ne4 Kf7 Rc8 b8Q Rc7 Re1 Rb1 Qb7 Ra1 Bc1 Kb1 Qa8 Ra3 Qac6 Qfc4 Rg1 f1R Bd2 Re1 Kf8 Qf1 Bf7 Ree3 Ke8 Reb3 Nd8 Bd3 Be6 Bc2 Bf5 Rb5 Ne6 Rb8+ Qdd8 Ra1 Ngf4 Nc4 Bd1 Nf2 Nd4 Qa7 Bc8 Nb2 Qdd7 Raa3 Nde6 Bd5 Qb7 Bc4 Qh1 Ne4 Ng2 Qa4 Bf3 Ba2
b1NR2BQ/nB1qBQ1R/B2RKp1b/4N1B1/q3n1r1/p3n3/6rk/1n1N2q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 c5 b4 h5 g4 a4 g5 f6 b6 c4 b7 c3 g6 c2 b5 h3 b6 a3 g7 h2 Nf3 h4 Nc3 h3 Ne5 f3 Bg5 c1N Qb3 f2 Nd1 Ne7 g8B Nd7 b8Q+ Qc7 b7 Nc6 Kf5 Rh6 e4 Rh4 Ba6 f1N Ra2 Bg7 Rd2 Ne2 Qa2 Ra7 Qa8 Bf8 b8N Nc5+ Nbd7 Bb7 Nb6 Rg4 Qb3 Qf7 Qc4 Bh6 Nc8+ Kc7 Qa2 Nc3 Qc4 Nb1 d6+ Kd8 d7 Kc7 d8R Qd7+ Qe6 Rg2 d5 Ne3+ Kg6 Rg4 Qf7 Rg2 Nd3 Rg4 e5 Ne4 e6 Rg2 e7 Rg4 Nb6 Kd6 e8B Rg2 Qc8 Ba8 Ne5 Rc7 Rd3 Na7 Rd2 Rc4 Qb8+ Kc5 d6 Qa4 d7 Rd4 Rg1 h1Q Nc8 h2 Rd3 Rc4 Rd6 Rb4 Rf1 Qg1 Rf4 h1Q Rh4 Qh3 Rh5 Ng4 Kf5 Qd3 Ke6 Ne3 Rb6 Kd4 Rh1 Ned2 Rd6+ Ke4 Rh5 Bg7 Rh7 Bh6 Nc6 Kf3 Ne5+ Kg3 Qb7 Qdb5 Qg7 Nc6 Qh8 Rd4 Bg6 Rg4 Be4 Na7 Qc7 Qf2 Beb7 Qc6 Rf8 Qe1 d8B Kh2 Qf7 Ne4 Be7 Qg1 Rd8 Qd7+
5q2/1BBR1N2/1KNB1p1b/2n4n/kp6/r2nRNNQ/b1nq1Rr1/Q1b2N2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 h4 c5 e4 g5 d4 b5 a4 g4 a5 c4 e5 c3 h6 f6 h5 b3 a6 f3 Ke3 b2 e6+ Kc7 h7 Kb6 a7 c2 e7 b4 e8N f2 d6 g3 h6 g2 d7 Bc5 Nf3 g1B Nbd2 b1Q Ra3 Bd6 d5 Kc5 Rh2 Bf8 d6 Na6 Ng7 Qa5 d8N Bd7 Nh5 Ne7 Nc6 Qa2 Ng3 Bh3 d7 Qd8 Bg2 Kb5 Kd4 f1N+ Re3 Rg8 h8Q Ng6 h7 Bh6 Bb2 Nf4 Qa1 Qb8 d8B c1N Bc7 Ka4 Bh1 Nc5 Rf2 Nh5 Bd6 Nh2 Ndf1 Ng4 Bg2 Rg6 Qc8 N1d3 h8N Bh2 Nf7 Rg5 Qe6 Qf8 Bc3 Ne1 Qd7 Ne5 Bh1 Bg2 Qh3 Ne5d3 Bb2 Kb5 Bc1 Qd2 Bb2 Rg4+ Kd5 Nc2 Bbe5 Rg8 Bc7 Rg4 Bed6 Rg8 Nf5 B2f4 N5g3 Re8 a8R Rc8 Ra2 Ra8 Rb2 Ra3 Rb3 Ka4 Re7 Be3 Rd7 Bef4 Kc4 Nde1 Re3 Ned3 Kd5 Bfg5 Nce5 Bf4 Kc6 Rg5 Kb6 Rg4 Nh4 Bd5 Nc6 Ba2 Bg2 Be5 Bd5 Bb2 Nf3 Bc1 Ncd8 Re4 Bb7 Rg4 Nc6 Rg8 Ne4 Rg1 Neg3 Rg2
4brqB/2N2B1R/bR2qp1Q/2r1b3/pNQn3N/4n2k/qKB2R2/3Rb1R1 w - - 0 1 illegal: No possible last move
N7/1N1b4/1pQ1pkq1/b4NR1/BKnR3n/Bn1r2R1/2Rn2Q1/bq1rQ1R1 w - - 0 1 illegal: No possible last move
b1b1N3/Rn2BpK1/3n2q1/2pk1NBq/r3q3/4bN1Q/4N1BQ/N1R1bQr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 h5 b4 a5 d4 f3 g5 f2 b6 h3 g6 h4 b5 h2 b7 a4 g7 a3 b6 a2 Nd2 h3 Nb3 Qg5 Nf3 Qh5 Bg5 Nd7 Kf5 Qh4 b8N Ra7 e4 Ba6 b7 Bd3 Bg2 f1Q Nc6 Ngf6 g8N Qff2 Nh6 Qh5 Qf1 Ne8 Rg1 h1B b8Q+ Nc7 Rc1 h2 Na1 Nb6 Kf6 Ra4 Qc8 Ba6 Qh3 Ne6 e5+ Kc7 Nf5 Nd8 e6 Rg8 e7 Nc4 e8N+ Kb7 d6 Qe3 d5 Bh6 d7 Nd6 Nc2 a1B+ N6d4 Bc3 Na1 Be1 Ne2 Qb3 Rd1 Kb6 Rc1 N8b7 d8Q+ Kb5 Qc7 Rg7 Bh4 Be3 Qb8 Rg3 Bg5 Qc4 Qc7 Qe4 Kg7 Qe6 Rc3 Rgg4 Ra3 Kc4 Qb8 Na5 Ra2 Bc8 Ra3 Nab7 Ra2 Nb5 d6 Kd5 d7 N5d6 d8B Rac4 Ra7 Ra4 Qh4 Rg3 Bh3 Bg2 Be7 h1Q Qg4 Qh4 Qh5 Qhe4 Qg4 Qh2 Qc7 Bh1 Bg2 Qh4 Qh3 Qh5 Qf2 Bb4 Rc1 Be1 Qf1 Rg4 Qh2 Rg3 Qd7 Rg4 Bh3 Rg1 Bg2 Qd3 Kg8 Na5 N5h4 Qf6 Bh3 Ke4 Ne5 Bf3 Bg2 Qd4 Qdh3 Qe6 Kg7 Qd3 Nc3+ Kd4 Neg6 Ba8 Ne5 Qe4 Ne2+ Kd5 Nf5 Nab7 Nf3 Qeg6+
b3n1QQ/1bqp3B/4Qn2/2b2NB1/r1R1N2p/n2K1k2/2n3rB/1N1NRq1N w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 g4 Kf6 f4 a5 c4 h5 b4 e5 b6 a4 b5 a3 c5 e4 g5+ Ke7 f6+ Ke6 b7 Kd5 b6 h3 f7 e3 f5 Ke4 f6 h2 c6 a2 c7 h4 g6 Kf4 g7 Bb4 f8N Kg4 f7 Qe7 Ng6 Bd2 f8Q Nh6 g8N Rh7 Nh3 Qa3 Qe1 Qa7 N6e7 Na6 b8B Bb7 c8N Bb4 Nd6 Rg7 Ndf5 Nc7 Ng3 Ne8 Kd3 e2 Nef5 Kf3 Nf2 Bc5 Nd1 Ng4 Bg5 Ngf6 Rg1 Rg6 Nh1 Qa5 Rg4 Qa7 Kd2 d3 Rc4 Rg7 Kc3 d2 Kd3 Rg6 Bc7 Qb8 Qh6 Ra4 Qh8 Qc8 Be5 Qc7 Bef4 Ba8 b7 Rg7 b8Q Bb7 Nhf2 h1B Bh2 Bg2 Nh1 Rg6 Nde3 d1N Qd8 Nc3 Nd1 Nb5 Qb8 Na3 Qa8 Nd5 Nf6 Rg7 Ne4 Ndf6 Qea5 e1Q Qb6 Qf2 Qe6 Qg1 Kd2 Rg6 Bd3 Qf1 Bc2 Nd6 Qag8 Nde8 Nbc3 Rg7 Rc1 a1N Nb1 Qg1 Kd3 Qe1 Ndc3 Qf2 Re1 Qf1+ Kd2 Rg6 Nd1 Rg7 Bd3 N1c2 Nec3 Bb4 Nfg3 Bc8 Bh6 Bc5 Bh7 Rg4 Nf5 Rg6 B6f4 Kg4 Be3+ Be4 Bef4 Ba8 Ne4 Kf3 Be3 Rg1 Bg5 Bcb7 Kc3 Rg3 Kd2 Rg2+ Kc3 Re2 Kd3 Rg2+
NRB5/pN1K1R1r/2b1R1n1/1B1QB2Q/2Rn1b2/3p1q1q/2q3r1/nRQ3qk w - - 0 1 illegal: No possible last move
b1B2KQ1/1B5B/2QN1B1R/p1B1bb1N/2n5/pb1r1n2/1r2Rbqk/b1NR4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 g5 h4 a5 c4 f6 b4 d6 e4+ Kg6 e6 Kh5 e5 f5 b5 f4 b6 f3 c6 f2 c7 a3 e7 Bg7 e8R Nh6 e6 Nd7 b7 Rb8 c5 Be5 e7 Nf7 Ke6 d5 c6 d4 Ne2 g3 Qa4 Kg4 h5 g2 h6 g1B h7 Nd6 Nbc3 Nc4 Kf7 d3 Ne4 d2 Rh6 d1B Be3 Bb3 Nc1 Rg8 Bd3 f1B h8Q Bf2 Nd6 Kg3 Bh7 g4 Bc5 Bg2 Rb1 Rg5 Qg8 Rh5 Qb5 Kh2 Qa4 g3 Qb5 Nf6 Kf8 Bf5 c8B Rh3 c7 Ne4 Qc6 Ng5 Ra1 Nf3 Rb1 Ra8 b8B Ra7 Ba6 Rb7 c8B Bh1 Bba7 g2 Bab6 Rb8 Bab7 g1B Bd4 Qd7 Bbc5 Qe6 Bc3 Qg6 B3d4 Qg2 Ba1 Beg3 Bf6 Be5 Nd3 Qg6 Rd1 Qg2 Nc1 Bfd4 Ne4 Bge3 Ng3 Ba1 Nh5 B3d4 Rd8 Bf2 e8N Ng5 R1d2 Rd3 Re2 Nf3 Nd6 Ba4 Ba8 Rb2 Bab7 Bb3 Nb5 Re3 Rd1 Rd3 Nd6 Ne1 Qe8 Qg3 Ba6 Ba8 Qc6 Qg2 Bab7 Nf3
1nq2N1R/1rr1K1Q1/1nQB3p/1pr1Q2b/2B1r3/1r2QrR1/N1kb3B/3N1Q2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 d4+ Kb6 f4 Ka5 a4 c5 g4 b3 d6 Kb4 f6 b2 d7 e6 g5 h3 d5 c4 g6 c3 d6 h2 f7 c2 a5 Kb3 f5 Ra6 g7 Nh6 g8Q Bg7+ f6 Bb7 f8N Qc8 d8Q Ba8 d7 Rc6 a6 Rc5+ Kd6 Bb7 a7 Ng4 a8Q Ne5 f7 Bh6 Bf4 Nc4+ Ke7 e5 Nh3 e4 Qe8 e3 d8Q e2 Qc7 e1R+ Qe5 Re4 Qg7 Nb6 Nc3 b1R Ra3+ Kb2 Bd3 c1R Qf1 Bd5 Be2 Kc2 Bc4 Rb3 Nf2 Bb7 Bg3 Bd2 Nfd1 Rg8 Na2 h6 Rg1 h1R Bh2 Rh8 Rg3 Rh7 Ra7 Bd5 Qac6 Be6 Ra8 Bg4 Qed7 Rg1 Qd4 Rg2 Qe3 Rf2 Nd7 Rf3 f8B Qc7 Ke8 Qb7 Bd6 Qc8+ Ke7 Bh5 Nf8 Ra1 Nac3 Ra6 Na2 Ra7+ Qd7 Rb7 Qc7 N8d7 Qc6 Nb8+ Nd7 Rff4 Qf7 Qc7 Ke6 Na6 Rh8 Rf3 Nf8 Nb8 Qg6 Qd8 Qg8 Rhc7 Qg6 N6d7 Qg7 Qc8 Ke7 Nb6+
1b1QQ1B1/BR3bpr/k1K1n2N/1r3Q1b/1b1n4/1np2Q2/n2QN1qN/5RB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 c5 e4 Kc7 h4 Kb7 d6 f5 b6 a4 d7 g3+ Kf3 a3 e5 c4 e6 a2 h5 g2 b5 c3 d5 Na6 h6 Rb8 h7 Bd6 e7 Ba3 e8Q Ne7 d6 Bb4 Be3 Nd5 Nd2 Qe7 d8Q Be6 d7 Nac7 Bc4 Qg5 Rb1 a1N Ne2 g1B Nf1 Nb3 Nh2 Bf7 Bc5 Be3 Rf1 Ne6 Qf6 Bd4 d8Q Be5 Qd2 Bd6 Bg1 Bc7 Kf2 f3 Rb2 f4 Qf5 Be7 Rbb1 Nb4 Rb2 Na2 Qf8 Rg8 h8N Bb4 Rbb1 Bh5 Nf7 Rh8 Nh6 Rh7 Qfe8 Ra8 Qdf6 Bb8 Qff8 Ra5 Qf8f7+ Ka8 b7+ Ka7 Bd5 Qg4 b6+ Ka6 Qd8 Rb5 Q7f6 Be5 b8B Qg5 Ba7 Bb8 b7 Qg2+ Ke1 f2+ Kd1 f3 Kc2 Be8 Kd3 Bf7 Kc4 Bh5 Rfd1 f1N Qff8 B8d6 b8Q f2 Qde8 Bf7 Qbd8 Bb8 Qf3 Bh5 Q8f5 Ne3+ Kd3 f1B Ke4 Nc7 Bg8 Ne6 Rdc1 Nc2 Re1 Nec5+ Kd5 Ne6+ Kc6 Bf7 Nf4 Bc4 Ne2 Bh5 Rf1 Nf8 Qc1 Bcf7 Qcd2 Ne6 Nc1 Nba1 Qed7 Rb7 Qg4 B4d6 Qf5 Ba3 Rb5 Nb3 Ne2 Be7 Q7e8 Bb4 Rd5 Rb5 Rd7 Nca1 Rc7 Nc2 Rb7 Ncd4+
nBb1n1kn/2p1r2r/Q1Br4/p1RN2BN/RRQ2b2/q5rn/3K1BQ1/5B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 f5 e4 Kf7 g4 h5 b4 a5 d6 f3 d5 h3 g5 h4 b6 h2 g6+ Kg7 d7 f2+ Kd2 h3 e5 f4 b7 f3 b5 Bc5 d6 Ra7 b6 Ra6 e6 Rh7 e7 Nc6 b8B Qf8 d8B Ne5 e8B Nf6 d7 Bd6 b7 Kg8 g7 Nf7 Qc2 Nh8 Ra4 Rc6 Ne2 Bf4+ Kd1 Qa3 Nbc3 Rb6 Nd5 Rd6 Rg1 h1N Qc4 h2 Rg5 Rh3 Be3 Rg3 Qa6 Nf7 Kd2 Nh8 Bg6 Ne8 Be4 Rg1 Ng3 Rg2 Be2 f1R Nh5 f2 B2d3 Rb1 Bf1 Re1 Rf5 Rg4 Bg5 Rg3 d8Q Rg4 Kc2 Rg3 Bc5 Ree3 Qf6 Re1 Qd4 Ree3 Beg2 Ree6 Qdc4 Re7 Be2 f1N Bf2 Ne3+ Kd2 Rb6 Bef1 Rd6 Bg1 Nf2 Bh1 Nh3 Bf2 Kh7 Bhg2 h1R Be4 Kg6 g8Q+ Rg7 Qa2 Rc6 Nc3 Rgg1 Q2c4 Qc5 Ng3 Rd6+ Qgd5 Kh7 Ba7 Qa3 b8R Re7 Rb6 Rg2 Bb8 Ng1 Rb7 Kg7 Rb5 Rh7 Rbb4 Nh3 Re5 Kf8 Nh5 Rg3 Bh1 Rde6 Qf3 Kg8 Rc5 Nd5+ Kd3 Be5 Kd2 Nb6 Qfe4 Na8 Qg4 Re3 Bc6 Bf4 Nd5 Rd6 Qg2 Rg3+
2nr1nn1/1NQ2K2/Qb3R1B/1rq2pBk/2R4p/1NprN3/1b4BB/4Qb1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 d4 Kg6 e4 a4 b4 f3 b6 a3 d6 f2 b7 c4 b5 h3 g5 c3 d5 h2 b6 a2 d7 Ba3 Ke6 Bd6 e5 Ra7 Qe1 Be7 d6 Bf8 Nh3 Qc7 Nd2 Qd8 Nb3 Rh7 Nf4+ Kg7 g6 Kh6 g7 Ra8 Ng2+ Qg5 Kf7 Ne7 d8B Ng8 d7 Ba3 e6 Bc5 e7 Qe3 e8Q h4 Qe6+ Kh5 Bg5 Ra5 d8N Rh8 Rg1 Nd7 b8B h1R b7 Bb6 Bh2 Qc5 b8Q Ba6 Qc7 Rb5 Ne3 Nf8 Bg2 f1N Nb7 Ng3 Rf1 Rg1 Rf4 Ne4 Rb1 a1B Bd2 Ng3 Rc4 Bb2 Rd1 Ne4 Qec8 Ne7 g8B Nf6 Bc1 Rf1 Rd6 Rf3 Qa8 Nc8 Bd2 Nd5 Rf6 Nde7 Bh6 Rb4 Bc1 Bb5 Qa6 Rg3 Rf4 Bf1 Rc4 Rb5 Ng4 Qa3 Bcg5 Rd3 Ne3 Qa5 Ke8 Qa3 B8d5 Ng8 Bh1 Qc5 Bdg2 Rh7 Rg4 Rhd7 Rc4 R7d4 Kf7 Rd8
k1Bb2N1/3RBQnr/3R1qQN/b2rQb2/5q2/pR5n/1p1pKQ2/r1B2Q2 w - - 0 1 illegal: No proof kernel
1Bn3r1/B5k1/1KBBqN2/Qn2bqp1/1R3b2/1RNp2BQ/2p5/Nn1R1b1r w - - 0 1 illegal: No proof kernel
6q1/3kB1QK/1R1N1B2/1Rn1p1r1/2RqQrRN/6nb/1ppNrRB1/n3b3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Kf3 b5 Kg4 c5 Kh5 b3 d4 b4 f4 c4 a4 h3 g4 h6 Kg6 b2 f6 c3 f7+ Kd7 f5 b3 a5 h2 d6 c2 g5 h5 d5 h4 a6 h3 a7 Bb7 f6 Qb6 Bg2 Ba6 Qd4 Rh7 Ra5 Bb5 Nf3 Qb7 Qe4 Nh6 Nh4 Nc6 Nd2 b1Q Ba3 Bf1 Rb5 b2 Bc5 Be7 f8Q Rf7 Qg7 Nb8 Kh7 Qc8 g6 Na6 Rg1 Rb8 a8R h1R Bb4 Rf8 f7 Nc5 Ra6 h2 Rab6 Nf5 Ba3 Rg8 f8R Nd4 Rf2 Qd1 Bb4 Ndb3 Ba3 Kd8 d7 Na1 Bb4 Kc7 d8N Kd7 d6 Ra8 Nf7 Ra4 Ndf3 Qd4 Nd2 Bg5 Ba3 Bf4 Bb4 Bg3 Ba3 Ke8 d7+ Ke7 d8B+ Kd7 Bf6 Qb8 Bf3 Bh3 Bg2 Rc4 Rd1 Re1 Bb4 h1N Nd6+ Ke6 Ba3 Re2 Rdf1 Qf8 Rf4 Qf7 R1f2 Kd7 Qf5+ Kc7 Nb7 Ra4 R2f3 Be1 Rf2 Nd7 Bae7 Qdd5 Nd6 Rf8 Bg5 Qfe6 Qh6 Ng3 g7 Nc5 g8R Kd7 Re4 Raa8 Rc4 Qd4 Qe4 Rf4 Bgf6 Qf7+ Rg7 Rg8 Qhg6 Qe8 Qh6 Qa8 Rg4 Rg5 Qg7 Qg8+
4q1BN/2K2nNn/3B1k2/bRBp1r2/p2rb1Q1/1rR1q1NQ/3Q1B1p/1b5B w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 d5 Kf4 a5 Ke5 h5 c4 a4 g4 d3 b4 h3 f4 h4 c5 h2 g5 h3 f6 e6 b6 d2 c6 Bg7 c7 Ra7 b7 Ne7 b5 Rg8 f5 Na6 b8B Qd7 b6 Bh6 g6+ Ke8 g7 Kf7 b7 Be3 Nf3 Nb4 Ra3 Bh6 Bg2 Qb5 Kd6 e5 Rc3 e4 Nh4 e3 Ng6 e2 Nh8+ Ke8 Re1 Be6 Bh1 Nbc6 c8Q+ Nd8 Kc7 Rf8 g8B Ng6 f7+ Ke7 Qc2 d1R Nd2 Be3 Nf1 Qe8 Ng3 Rd4 Qd2 Kf6 Bb2 Bg1 Rb1 e1Q Ba3 Bd7 Rb5 Q1e3 Bc5 Bf2 Bd6 Be1 Bc5 Ra6 Bba7 Rb6 b8Q Be6 Qbb7 Bd7 Qc6+ Be6 Q6d7 Rb8 Bf3 h1B Bg2 h2 Bab6 Ke5 f6 Bf5 Bf3 Bd3 Qh3 Bb1 Qcg4 Bg2 Bd1 Bge4 Bf3 Nh4 Bg2 Nf3 Bh1 Ng5 Ba7 Nh7 Bab6 Qe6 Ba7 Re8 f8N Nf7 Bab6 Red8 Ba7 Qe8 Ne6 Rd6 Ng7 Re6 Ra5 Rb3 Bab6 Nfg5 f7 Rf6 f8B Rf5 Rb5 Nf7 Bfd6+ Kf6 Qc2 Bd2 Qa2 Bc1 Qf2 Ba3 Qd2 Bb4 Qhh4+ Qg5 Qhh3 Rd3 Bf2 Rd4 Ba7 Qe3 Bac5 Ba5+
r6R/2n3KN/4QRQp/2Qq1nq1/2Nb3R/R1B2r1B/1Rp1p1n1/bb4Bk w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 c6 g4 a4 b4 a3 f5 h3 b6 h6 g5 a2 b5 e6 b7 h2 b6 e3 f6 e2 g6 e1Q f7 Na6 b8R Nc5 g7 Qg5 b7 Na6 Bh3 Qeh4+ Qg4 Ne7 g8Q Qg6 Bb2 Rh7 Bc3 Qhg5 Na3 Nc7 Nf3 Q6h5 Qg6 c5+ Ke4 c4 d4 Bg7 f8R Be5 Rf6 Nf5 Qg1 Bd7 Rh8 Ne3 b8R Ng2 Rb2 Rf7 Qe1 Rff8 Qf2 Be8 Qc2 Bf7 Qb3 Bg8 Qb5 Bh7 Qc5+ Kd7 d6 Rf7 d5 Bd4 Bd2 c3 Nc4 Rff8 Be3 Rf7 Bg1 Rff8 Rab1 a1B Rb3 Rf7 Ra3 Rff8 Rf5 e5 Rb2 Kc8 d7+ Kd8 Qcb6 Ke7 d8B+ Kd7 d6 Rf6 Qa7 Kc6 Rf4 Rf5 d7+ Rf6 Kd3 Kd5 Be7 Rff8 Rf6 Rf7 Bb4 e4+ Ke2 e3 Kd3 e2 d8Q+ Rd7 Qc8 Rf7 Nfe5 Rf8 Nd7 Rf7 Nf8 Qf3+ Ne3+ Ke5 Qc5+ Qd5 Nf5 Kf4 Qe6 Kf3 Ne3+ Kg3 Ba5 c2 Bc3 Bg8 Nh7 Rff8 Rf4 Rf5 Rh4 Bf7 Nc4 Rf3+ Be3 Bg8 Rf1 h1N Rf2 Kh2 Rf1 Rff8 Rf6 Ng3 Bg1+ Kh1 Rh5 Qd6 Rh4 Nf5 Ke4 Qd5+ Kd3 Rfd8 Rf8 Qe5 Qef6 Qe6 Na5 Qa2 Ke4 Bf2 Ke5 Rd3 Qfb6 Bd5 Qbe6 Rf3 Rf7 Qc4 Rff8 Qd3 Rf7 Ba2 Nc4 Bb1 Rff8 Qg4 Kf6 Qg5+ Kf7 Qd5 Kg8 Ra6 Rf6 Bd4 Kf8 Ra8+ Kf7 Ng3 Kg7 Nf5+
N1b2r1n/R1rk2p1/RR1q1b1N/1qQ3p1/B7/r6N/p3Q2n/RKBqQ1R1 w - - 0 1 illegal: No possible last move, all moves rejected
n4B1n/N1R1Qp2/3rBQBn/3qbQ2/8/N1BBq2b/pNr2Rp1/2K2bk1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Kf6 h4 Ke5 b4 Ke4 c5 g5 h6 a5 b6 d5 h5 d3 c6 f3 c7 a4 b7 f2 b5 a3 b6 g4 h7 d4 h6 a2 Nh3 g3 Rh2 Qf6 Nf4 Bf5 c8B Bd7 Qe1 Ra4 Ba3 Qh4 Kc1 Bh3 Bf5+ Ke3 Bg6 Na6 b8N Ne7 b7 Qg4 Nc6 Bg7 b8Q Qg5 Qb5 Nc7 Na7 Rd8 h8Q Ra6 h7 Be5 Qf6 Na8 h8B Rad6 Bc5 R8d7 Na3 Rd8 Qd7 Qh6 Qdf5 d2+ Kb2 d1N+ Kc1 R8d7 Nd3 Qg5 Nb2 g2 Rh1 Qg3 Bb4 d3 Rb1 Kd4 e4 Ne3 Be2 Ng4 Rf1 Ke3 Bc5+ Bd4 e5 Nh6 e6 Qg5 Bb4 Be5 Bg7 Qg3 Bc3 Qf4 Bf8 d2+ Kd1 Rd8 Bd3+ Kf3 Rc1 R8d7 Bh7 Ng6 e7 Nh8 e8B Kg3 Rc2 Kh2 Bg6 Qe3 Qe2 Rd8 Ba4 R8d7 Bb3 Rd8 Be6 R8d7 Re1 f1B Rc1 Kg1 Kc2 Qb6 Qee4 Qe3 Re2 Rd4 Qb7 R7d6 Qbe7 R4d5 Rf2 Rd4 Nbc4 d1Q+ Kb2 Qdf3 Kc2 Qd5 Nb2 Qef3 Kd2 Qfe4 Rc2 Qf3 Kc1 Qg3 Be2 Rd2 Bd3 Qf4 Bb4 Qg5 Rc7 Qe3 Bc3 Rc2+
Nr1q2nb/Rq3pk1/1BQ5/B2brpK1/3NR1Rr/p3RRn1/1q2Q2Q/3B4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e6 f5 exf5 cxd5 Bg7 Nc3 Bh6 Nb1 Bf8 Kf2 a5 Kf3 h5 Kf4 c5 b4 a4 e4 h3 g4 h2 d4 c4 e5 c3 b6 c2 g5 h4 d6 h3 g6 Bb7 d5 Nf6 g7 Rg8 d7+ Ke7 d6+ Ke6 b5 Ne4 Na3 Qe7 d8Q Nc3 d7 Na6 Qc8 Be4 d8B+ Qd7 b7 Nd5+ Kg5 Rh8 b8Q Bb4 g8R Ne7 b6 Nc5 b7 Bc6 Nc4 Bc3 Be2 Nd5 Bb6 Rh4 Bd2 c1Q Nf3 Ne3 Rf1 h1R Nd4+ Ke7 e6 a3 Qh2 Qb2 b8R Bd5 Rb7 Rb8 Rf3 Nf1 Qc6 Ng3 Ra7 Re1 Qc2 Qb7 Bd1 Re5 Qe4 Nd7 Qee2 Nf6 Rb1 Qc1 Rb4 Qb2 Rg7 Kf8 Rb3 Bb4 Rbe3 Ng8 Bc3 Bd6 Bca5 Bb4 Nd6 Qc7 Ne8 Bc3 Rg6 Qd7 Nc7 Qc8 Na8 Qd8+ Rf6 Kg7 e7 Qb4 e8R Qb2 Qhf2 h2 Re6 h1Q Qh2 Rh6 Ree7 Rh7 Rh6 Qg2 Rh4 Rh6 Rg4 Rh4 Bc5 Qb7 Bcb6 Qf2 Qa6 Qc2 Qae2 Qb2 Qeg2 Re4 Nb3 Kh7 Qe2 Bh8 Nd4 Kg7 Qc1 Qdd7 Qc6 Qd6 Rd7 Ree8 Rde7 Qdc7 R7e4 Re5 Qg1 Qcc8 Qgh2 Qd8+
2K1nrB1/2QN1pRr/2q1p2b/RbqQRn2/1k6/2Nn1R1b/2BR2p1/N1B5 w - - 0 1 illegal: No proof kernel
R1BBQ1N1/brQ4b/1p2Rn2/1NN1rqkn/Rp6/3NrB2/2rpK1n1/3N4 w - - 0 1 illegal: No possible last move, all moves rejected
1RK4b/k1p1q1Q1/4b3/5Q2/1N1N4/NNRr2r1/Rp1Nnprb/Q1Bn1B1b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Ke4 f5+ Ke5 g5 a4 f3 d4 f2 e4 g4 h4 b3 h6 b4 a5 b2 h7 g3 a6 g2 a7 f4 d6 Kc6 d5+ Kb6 d7 b3 Ke6 f3 d6 Bb7 h5 Qc8 e5 Na6 h6 Rb8 a8R Nb4 Na3 b1B Qd3 Nc2 Rh3 Bg7 Ne2 g1B Nd4 Ba6 Qf5 Qd8 Ra2 Qg5 d8N Ne7 Kd7 Rg8 h8Q Ne3 e6 N7d5 e7 Nc3 e8N Ne2 h7 Nd1 Nf6 Bh2 Nb7 Be4 Na5 Bc4 Rg3 Rbc8 Rb8+ Ka7 Rh3 Ba8 Ne4 b2 Nd2 Rce8 Nab3 Re3 Rg3 Bf6 Qg7 Rd3 h8Q Qe3 Rh3 Qe4 Qg1 Rg3 Kc8 Qe7 d7 Be6 Qhh7 Bh8 Qg7 Bf7 d8N Bc6 Bg2 f1R Qh1 Rg1 Bf1 R1g2 Qg1 Be4 N8c6+ Ka6 Nb4+ Ka7 Rh6 f2 Rc6 Rg5 Rc3 R2g3 Qf4 Bh1 Qg4 Rg2 Qf5 R5g3 Qgg6 Be8 Qg7 Nf4 Be2 Ne3 Qd1 Bg6 Qc2 Nd1 Qb1 Bf7 Bf1 Ne2 Qa1 Be6+
1r5B/1k1B1r2/2r2RN1/2np1BN1/2n2bQK/2BQ2p1/RB1qb1pr/3NRq2 w - - 0 1 illegal: No possible last move, all moves rejected
3B4/1QRB1NpQ/5qQr/2n1pn2/qQ2qN1k/r7/Kp1qR2b/1N1R1bQ1 w - - 0 1 illegal: No possible last move, all moves rejected
1Kq3B1/1BQb4/p1rp4/2b1NR2/4rpn1/1N1BR1Bk/2n3pb/R1Nr1Q1B w - - 0 1 illegal: No possible last move, all moves rejected
3NQbQN/Q2NB1pp/q1NR4/rBB4R/4n2p/1n6/2rNp1bK/1nkb4 w - - 0 1 illegal: No proof kernel
5N1B/Q1r1n2b/2r1N1R1/NB1N4/pQ1n3k/R1bq2pp/1qp2RQr/K6N w - - 0 1 illegal: No possible last move, all moves rejected
RBQ1BB2/1qbb4/p1N3p1/1r1K4/R2pr2N/2b1Q1Rp/q3Q2n/kn2R1R1 w - - 0 1 illegal: No proof kernel
2b1Nrn1/2B2p1k/2B1p1R1/Q1R1N1Rr/1pq1N1K1/3R3B/3p4/1rb1qQRn w - - 0 1 illegal: No proof kernel
k1K5/3Nr1R1/1rb1p1n1/pBr1N2N/qrr2BNn/4N1NN/2Bn1Q2/R7 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 g6 Be6 g5 Bg7 c3 Bd4 cxd4 Bg4 f3 Bxf3 d5 Bg4 Rh2 Bd7 Rh1 Bc8 Ke2 Kd7 b4 h5 d4 a5 d6 c5 b6 Kc6 g7 Kb7 g6 e6 d5 f3+ Ke3 f2 Kf4 h4 Ke5 e3 d7 e2 Kd6 e1N b5 h3 Qc2 c4 Bf4 h2 Na3 c3 Nh3 Ra6 Nc4 Rh6 Ne3 Qg5 d8N+ Ka8 Kc7 Bb7 d6 Nc6 d7 Qg3 Rg1 h1R Nf7 Qg4 d8N Na7 Nc6 Ng2 Nd6 Qh4 Ne4 Nf6 g8B Qg4 g7 Qe2 Bh7 Nh4 g8N Qc4 Ng3 Ne4 Nf6 Rh5 Nfg4 Qa4 Nce5 Nc8 Rg2 Bc6 b7+ Ka7 b8N Rb6 Qa2 c2 Nbd7 c1R Ndf6 Nd2 Bc2 Ka8 Bc4 Rg5 Nfh5 Ne7 Kd8 Neg6 Kc8 f1R Qb2 Rb7 b6 Re7 Bb5 Rb1 Qa2 Rfc1 Rg1 Rb4 b7+ Ka7 b8N Ka8 Rg2 Rcb1 Nbd7 Rhc1 Nf7 Rc5 Nfe5 Rbc4 Rg1 Rbb4 Qb2 Rb1 Qd4 Nf1 Qd2 R1b2 Qf2 Nd2 Nh6 Ng2 Ngf5 N2h4 Ba6 Rb6 Bb5 Nf8 Rg7 Rbb4 Nfg3 Nfg6 Nhg4 Rb2 Bg5 Rb1 Bf4 Rbb4
1b2n2R/N1p2n2/1r2R2Q/3K2q1/p3R1N1/1kB1R1RR/Rn3BnB/b2n1b2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Kf2 h5 Bg2 a5 Ke1 f4 Bh3 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 Kf2 Kf7 d4 g5 e4 a4 h4 Ba3 b4 Nh6 d6 Bd7 h5 Bc8 d5 Na6 d7 Kf6 d6 Ke5 b6 Qf8 d8R Qe8 b7 Nc5 b8B Qg8 d7 Nf7 h6 Qg6 f6 Qg7 b5 Nd6 f7 Rf8 h7 Ndb7 h8B Ke6 b6 Nd6 e5 Bb2 b7 Ne8 Ra2 Ba1 Nh3 Rg8 Qc2 Kd5 Qg6 Kc4 f8R Kb3 e6 Qe7 Qf6 Rg6 Na3 Qg7 e7 g3+ Kg1 f2+ Kg2 f1N Kf3 g2 Rg8 g1B Ba7 Bgd4 Nb5 Ne3 b8R Nd1 Rb6 Nd3 Ke4 f3 Nf2 g4 Bf4 g3 Ng4 f2 Kd5 f1N Rh3 g2 Bh2 g1N Re6 Nf3 Qg5 Nfe5 Qh6 Bg1 Bf2 Nf7 Na7 Ba6 Rb8+ Bb5 d8R Qf6 Ree3 Qg5+ B8e5 Rc6 Rd6 Rb6 Re6 Bc4+ Ke4 Bb5 Bc3 N3b2 Rh8 Bc4 Rd8 Bb5 Rdd3 Ba6 Reg3 Nfe3 Kd4 Ng2 Rde3 Nf6 e8R Bf1 R8e7 Ne8 R6e4 Ne5 Kd5 Nf7+ R7e5 Rc6 Ref3 Nfd6 Nc8 Qd2+ Bfd4 Nf7 Re6 Qf4 Bf6 Bb6 Bfd4 Ba7 Bf2 Rb6 Rfe3 Bb8 Na7 Qg5+
1Nb1N1B1/1NB4n/1nr1bqbB/B4R1B/Q1Bb1Bqb/1r6/R5n1/1q1k2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 d3 h3 g6 h4 d7 c4 e6 c3 g7 a4 e7 f3 e8B a3 b5 a2 b7 c2 b6 f4 Na3 Kc3 d4 h2 d5 h3 d6 Qg5 d8N Be7 d7 Nf6 g8B Nh7 Rb1 a1B Ba2 Qg4 Ba6 Bh4+ Kf1 f2 B6c4 Ra6 Bh5 Rg8 Be3 c1Q Rb5 Qb1 Nf3 Rg6 Bg8 Rc6 Nc4 Ra3 Nfe5 Rb3 Nd6 Bb2 Rg1 h1B Ne8 Be4 Rg2 h2 Bc4 h1B Rd5 Re6 Nec6 Bg6 Rf5 Rd6 Rh2 Bd5 Rg2 Be6 Bc1 Rb4 Qa4 Rb3 Rh2 Kc2 Rg2 Na6 b8B Nb4 b7 Kd1 Bc7 Nd5 b8B Nb6 Nb7 Ba1 d8B Bd4 Ne5 Rc6 Nd7 Qf3 Rh2 Qe2+ Kg2 f1N+ Kh1 f3 Bh6 Ne3 Kg1 Qeb2 Rf2 Ng2 Bcf4 Qd2 Bbc7 Qe2 Nb8 Qee4 Bfe5 Qg4 Bef4 Na8 Ba5 Nb6 Bdc7 Bh8 Re2 f2+ Kh2 f1Q Rf2 Qfe2 Kg1 Qe5 Rc2 Qf6 Rf2 Bed7 Bg8 Be6 Rc2 Rb4 Bc4 Rb3 Ra2 Qf8 Kh2 Bd4 Kh1 Qf6 Kh2 Bc3 Kg1 Bd4+
1nR2R2/3n3b/5RBk/qq2bqRr/RBr1q2N/1q5R/1K1R1B2/4NnnQ w - - 0 1 illegal: No possible last move
2Br4/1b1qBKn1/Nbq5/1Nbb1N1R/1n4kN/N2Q3N/B3rRN1/1n3n1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 a5 d4 a4 e4 f3 g4 h3 g5 h4 g6 a3 b6 h2 b5 f2 d6 c4 g7 h3 b7 a2 d5 c3 b6 f4 Ba3 f3 Qd3 Na6 b8N+ Ke8 d7+ Kf7 b7 Kg6 Ke6 Kh5 d6 c2 e5 c1B Kf7 Nc7 e6 Bb2 e7 Kh4 e8N Ra4 Nc6 Bc1 b8N Bb7 Ne7 Re4 Nf5+ Kg4 Na6 Nf6 g8B Nfd5 Neg7 Re2 Nh4 Ne8 Ngf5 Ng7 Bb4 Bh6 Na3 Be3 Re1 Qc8 d8N a1Q d7 Qac3 Nc6 Bb6 d8N Qd7+ Be7 Nb4 Na7 Qcc6 Bg2 f1N Ne6 f2 N7b5 Nd2 Rf1 Nb1 Nf4 Rh6 Bd5 Rd6 Ba2 Rd5 Nfg2 Rd4 Re1 f1N Bh7 Rd2 Re3 Re2 Rf3 Rd6 Rf2 Rd5 Ngf3 Rd4 Ng5 Rd6 Rg1 h1B Bg6 h2 Nh3 Nfd2 Rc1 Nf1 Rc5 Rd5 Ngf4 Bf3 Nfg2 h1N Bh7 Qdc8 Bg8 Rd8 Be6 Q8c7 Bc8 Q7d7 Nfd4 Ne6 Rh5 Bd5 Ndf5 Bg7 Kg6 Bgd4 Bf7 Ng7+ Be6 Bdc5 Kf7 Bf3 Ba2 Bd5+
nNb2rB1/N1rbRNnN/3p1R1q/3kb3/b1NN1R1N/5rQ1/2K5/qnB5 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 a5 c4 h5 f4 e5 b4 d6 f6 Ke6 c5 d3 g5 a4 b6 e4 f5+ Kd5 b7 h3 c6 a3 c7 h4 b5 h2 g6 h3 f7 a2 f6 Ra3 b6 Be7 f8R Nh6 g7 Nd7 b8N Nf5 g8N Ng7 f7 Bf6 b7 Nb6 Qf3 Na8 Nh6 Be5 Qg3 Qh4 Nf3 e3+ Kd1 d2 Kc2 d1N Nc6 e2 b8N e1Q Ncd4 Nc3 Nbd2 Nb1 Nc4 Re3 Re8 Rf8 Re7 Qf4 Rg1 h1B Nh4 h2 Bg2+ Rf3 Rf1 Bd7 c8N Qg5 Na7 Qa5 Ng8 Qh6 Bh3 Bg2 Bg4 h1B Be6+ Kc5 Bd5 Bgh3 Rf2 Bc8 Rf1 Bhd7 Rf2 Rd8 f8N Bg2 Nh7 Rdf8 Ngf6 Bf1 Bg8 Be2 Ng5 Bd1+ Kb2 Qe1 Nf7 B1a4 Nh7 Kd5 Rf1 Nc3 Rb1 a1R Rf2 Ra3 Ra1 Rb3+ Kc2 Nb1 Ra3 Rb7+ Rb3 Re3 Rf6 Rf3 Rf4 Rc7 Rf6 Bab5 Re3 Qa5 Re4 Qa1 Ref4 Ba4+
r1NB2N1/1k1r1rNr/b1b2n1q/3N1K1B/Q2n1R2/b2p4/4B1N1/1N1Rb1Nb w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 c4 a5 f4 e5 b4 a4 c5 h3 b6+ Kc6 b7 a3 b5+ Kc7 c6 d3 b6+ Kd6 c7 Kc6 Be2 d2 Qa4+ Kc5 g3 Nd7 b8N d1B b7 Kb6 f6 h5+ Kf5 h2 f7 e4 g4 d4 g5 h4 g6 a2 g7 h3 Nc6 e3 b8N d3 Na6 Rh6 Ne7 Bb7 c8B Ngf6 g8N Nb8 Nb4 Ba6 Nbd5+ Ka7 Bd7 Nc6 Nc8+ Kb7 Be8 Ba3 f8N Rh7 B8h5 Qd6 Ng6 Rd7 Nh4 Rf7 Ng2 Nd4+ Kg5 Qf8 f5 Ra7 Kf4 Qh6+ Ke5 Ra8 Bd2 Bb3 Ba5 Bbc4 Bd8 Bcb5 Nce7 Bc6 Nc8 Nh7 f6 Rd7 f7 Nf6 Beg4 e2 f8N e1B Be2 Rf7 Ne6 Rd7 Nd2 Ra7 Rc1 a1R Rd1 Ra2 Nb1 Ra8 Bef3 Rf2 Be2 Rf3 Ng7 Rf1 Nf3 Rf2 Rf1 h1B Ng1 h2 Bef3 Ne8 Be2 Rff7 Rf4 Nf6 Nge3 Be4 Ng2 h1R Bhf3 Qg6 Bg4 Rh7 Bh5 Qh6 Nge3 Bh1 Ng2 Nc2 Kf5 Nd4+
5b1r/3N1N2/1N2nRNB/Knn1r2p/B1R1q1b1/Q1p1R1n1/Nn1N2k1/1b1N4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 f5 g4 c6 e4 h3 b6 a6 g5 h2 g6 f3 b7 f4 e5+ Kd7+ d6 Ke6 d5+ Kf5 g7 Ke4 e6 f2 e7 f3 e8R+ Ne7 g8N Ra7 d7 Bh6 d6 Bf8 Bb5 f1B Bh6 f2 Qc1 Bd3 Nh3 Kf3 Ra4 f1N Nf2 Ne3 Nd2+ Kg2 Nd1 Ng6 Ne7 Bb1 Rf1 h1N Rf6 Nf4 Ng6 Nc4 Re3 Qe7 d8N Bg4 Nf7 Nd7 b8N Nc5 d7 Qe4 d8N Nfe6 Nd7 Ng3 Nb6 Re7 b3 Re8 Qa3 Nb2+ Ka5 Re7 Rc4 Re8 Ba4 Re7 Kb4 a5+ Kc3 Re8 b4 Re7 b5 Re8 Bb3 a4 Kb4 Re7 Ka5 Re8 Qa1 a3 Ba4 Re7 Qa2 Re8 Qb3 a2 Qa3 a1N Ref3 Nd7 Re3 c5 Nc6 Nc2 Nb4 Ncd4 Na2 Re7 Nd5 Re8 b6 Nb5 b7 Re7 b8N Re8 Rd4 c4 Nb6 Ndc5 N8d7 c3 Rb4 Ned4 Rc4 Re5 Bb3 Nde6 Bc2 Ned4 Ba4 Nde6
1n2b2k/BbN1B1R1/1K1bRpRr/2pRq2B/3Q3b/4n3/qRR5/2RNn1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 e4 h5 b4 a4 g4 h3 d4 h4 g5 f3 Ke3 f2 g6 a3 e5 a2 e6 h2 d6 f6 d5 c6 Kd4 h3 Kc5 Bh6 b6 Kf8 b7 Kg7 b5 Ra6 e7 Bg4 e8R Ne7 b6 Ra3 d7 Be3+ Qd4 Bg5 d6 Rg8 Be2 f1B Be3 Bf4 Nc3 Nd5 Nf3 Ra8 Rg1 h1Q Nd1 h2 Re6 Qe7 d8B Bg5 Rc1 Bh4 Ng5 a1B Rc2 Qc7 d7 Kh8 Be7 Qe5 d8R Bf3 Rg3 Be4 Bh5 Qg2 Bf2 Ne3+ Rd5 h1N Rc1 Re8 Rc2 Bb5 g7+ Kg8 Bg1 Ra4 Rc1 Qa2 Rg2 Ra6 Rgc2 Nf2 Qd3 Bf3 Nb2 Ra4 Rf1 Qe4 Red6 Ned1 Rf5 Rd4 Ne6 Rd8 Rd7 Ba4 Bf8 Qe2 Qe3 Rg4 Nc7 Kh7 Bd6 Rh8 g8R+ Rg7 Rg5 Bd5 Be7 Na6+ Kd6 Rg6 Rg7+ Kh6 b8R Nd3 b7 Qe1 Qe5 Bh1 Ba7 c5 Rdd8 Be8 Rd7 Qc3 Rfg1 Ne3 Rgc1 Bg2 Nd1 Ne1 Qe4 Qd4+ Kc6 Qdd5+ Kb5 Be5 Qd4 Qe6 Rd8 Beg3 b8R Bh2 Rb7 Nb8 Rg4 Bd5 Rb6 Bb7 Rg5 Nc6 Rd6 Nb8+ R8d7 Qed5 Re6 Bf4 Rge5 Rg1 Reg5 Be5 Rbc6 Qe4 Rd5 Bd6 Rg3 Qe5 Rgg2 Qb1+ Ka5 Qb2 Rb6 Qb1 Rb3 Qa2+ Kb6 Rh7 Rbb2 Rh8 R7g5 Kh7 R2g4 Rg8 Rgg2 Rg6 R5g4 Rh6 Rg7+ Kh8 R2g5 Bd7 R5g6 Be8
1rB5/b4KB1/1RN1B1RQ/1r1N2bB/N1Bp4/3pn1bq/p1Bq2bk/3B1n2 w - - 0 1 illegal: No proof kernel
1K2Br2/3p4/1R2Br1R/2Bp3N/4nnbB/2R2pq1/2bQ1Bq1/1bBNB1bk w - - 0 1 illegal: No proof kernel
Bq3r1K/2r4B/b6b/1BR1BpN1/1k1pp3/2N3BB/1rnN3p/1BQ2nRq w - - 0 1 illegal: No possible last move, all moves rejected
2b4q/rNB2n2/N1k2bBN/Rp5r/pnr1NN2/1N1p3r/p1B2Q1N/K1R5 w - - 0 1 illegal: No proof kernel
2n5/4qk2/1r3N2/NBRqrR1K/nN2q3/1bQ3Q1/3Rrn1b/r1BQB1R1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 h5 Kf3 e5 d4 c5 g4 h3 f6 c4 f7+ Ke7 d6+ Ke6 b6 h2 g5 b3 d5+ Kd7 g6 b2 g7 c3 b7 h4 Kg4 c2 f4 h3 f5 e4 f6 e3 Nd2 b1Q Bb5+ Nc6 b8Q e2 Nb3 e1R Na5 Re2 Nf3 Ra6 Rg1 h1Q Nd4 Ne7 g8N h2 Kg5 Bh6+ Kh5 Rb6 f8B Ke8 d7+ Kf7 d6 Nb4 Ndc6 Nbd5 Nb4 Nc3 Ra4 Qe8 d8Q Be6 d7 Bb3 Qg3 Nc8 Qdc7 Qe7 d8R Bf4+ Bh6 Qe4 Rd2 h1N Ra2 Na4 Qcc3 Qb2 Rd5 Be5 Rc5 Nf2 Bd2 c1R Be1 Qa3 Rb2 Qa2 Rd2 Ke6 f7 Ra1 Nf6 Re8 f8R Bf4 Rg8 Kf7 Rgg5 Be5 Rf5 Bc7 Rdd5 Qd2 Rd8 Qdd5 Bc1 Bd6 Qh3 Bh2 Qhg3 Qeb7 Rd6 Re5 Rd8 Qe7 Rd6 Qdc4 Rd2 Qcd5
2Rn1b2/N2kbQ1N/3b1B1B/b2N1q2/1B1r2QK/bnQR4/4bR2/1n1r1R2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 c5 h4 a5 d4 e5 b4 a4 b6 f3 Kg3 c4 d6 a3 b5 e4 h5 c3 b7 c2 f6 f2 h6 f1N+ Kh4 g3 d5 a2 b6 g2 d7+ Kf7 d6 Ke6 g6 e3 h7 e2 g7 Ra3 Nf3 g1B Nc3 Rb3 Bh6 c1B Rh2 e1B+ Rf2 Ba3 Nd5 Na6 b8N Rd3 b7 Nc5 Nc6 Nd2 b8R Qa5 d8B Kd7 f7 Ba6 Bf6 Ne7 g8Q Nb1 Rc8 Nb3 Na7 Nc6 Ng5 Bh2 Qh5 Be7 f8B Nd8 Qgf7 Rd1 Qf3 Rg8 h8Q Be2 Nh7 Rg1 Qe4 Rd4 Qhg7 Rh1 Qg3 Beb4 Qc3 Qb5 Qf4 Ba5 Qe4 Qd3 Qf4 Qf5 Qg4 N1d2 Raf1 Nb1 Bc1 a1B Bfh6 Bc5 Ba3 Bb2 Bb4 Ba3 Qg7 Ke6 d7 Bf8 Qg6 Bce7 Qg8+ Nf7 d8R Rg1 Re8 Kd7 Qg6 Nd8 Qf7 Bg7 Rg8 Bf8 Rg7 Bd6 Rg5 Qe6 Rgf5 Qe4 R5f3+ Qf5 Rd3 Bd1 Rf4 Be2 R1f2 Rd1 Rf1 Bc5 R4f2 Bd6
3b1Qbk/1b2r2n/1b1B2Q1/1R1n2r1/N6R/R1q1N3/3B1r1b/BK1b1BNQ w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 Kd2 Kg7 Kc2 c5 g4 e5 f4 h5 d6 h3 b6 b3+ Kb2 e4 d5 e3 g5 e2 b7 e1B d7 h2 d6 c4 g6 h4 Qd5 h3 Ra3 c3+ Ka1 c2 Qd3 b2+ Ka2 Bg3 Qa6 Qf6 d8B Rh7 d7 Bc5 Nc3 b1R Na4 Qc3 f6+ Kh8 f5 Ne7 f7 Nd5 f8B Re7 f6 Bb6 f7 Rb5 Bd2 c1B Bc7 Ra5 d8Q Bg4 Kb1 Nd7 b8R Bd1 Be5+ N7f6 Qe8 Bf4 Qc6 Bg5 Bd6 Nh7 Qcb7 Bf4 Qc6 Bd8 Rb5 Be3 Bh6 Beb6 Bhe3 Rc8 Qcb7 Rc4 Qba8 Rf4 Bd4+ Re5 Qc6 Rf2 Qab7 Ra7 Qa6 Re7 Qca8 Qc5 Ba1 Bb2 Q8b7 Rg5 Qc6 Be5 Qab7 Nf8 Qa6 Qc3 g7+ Kh7 g8N Kh8 Nf6 Nh7 Ng4 Bg3 Ne3 Be5 Nf3 Bf4 Rg1 h1B Rg4 h2 Ng1 Bg2 Qcb7 h1B Rh4 Bh2 Qc6 Bh3 Qab7 Be6 f8Q+ Bg8 Qce8 Bg2 Qg6 Nf6 Qf3 Bh1 Qh3 Bb7 Qg2 Nd5 Q2e4 Bg3 Qh1 Bh2
2kBnR2/2n1r3/Nn5N/rrR5/QQ2BRb1/1K2B2r/4nnQ1/2N1b1qB w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 Kd2 c5 Kc2 e5 f4 h5 g4 h3 d6 c4 g5 h2 f6 c3 b6 h4 d5 h3 f7 e4 g6 e3 f5 e2 f6 e1N+ Kb3 c2 b7 Ra6 g7 Ne7 g8B Ra5 Nf3 Ng6 Be3 Ng2 Nc3 Ne5 Na2 Qb6 Bd3 Nc4 Rf1 h1N Nc1 h2 Ng5 Nh4 Rf4 Nf5 Be4 Na6 b8N+ Kd8 d7 Ng7 Ra4 Nc7 Na6 Rh3 Ra3 Be7 f8R+ Nge8 f7 Nf2 Qg4 h1R Qg2 Re1 Ra4 Rb5 Ra5 Qg6 Bh7 Nb6 Bf3 Qg8 Bhe4 Rc5 Rb5 Bf6 Ra5 Bc3 Rb5 Re2 Ra5 Be1 Rb5 Ke7 d8B+ Kd7 d6 Re5 Rc5 Qg7 Rc4 Ra5 Rc5 Qa1 Ne6 Qg7 Nd4 Qg3 Nf5 Qg4 Kb2 b3 Nh6 Qg6 Qh1 Qg1 Qg2 Rb5 Ka3 b2 Ka2 Ra5+ Kb3 Ke6 d7 Kd6 Qg7 b1R+ Qb2 Ke6 Bh1 Kd6 Bh4 Ke6 d8Q Bd7 Bf6 Kd6 Qa8 Bg4 Bd8 Kd7 Qc6+ Kc8 Qa4 Rd2 Rh8 Rd7 f8Q Re7 Qg7 Ra1 Rhf8 Rb5+ Qb4 Ra2 Qa1 Raa5 Qa4 Be2 Qg2 Bg4 Na2 c1N+ Kc2 Ne2 Nc1 Nc3 Kb3 Ne2
1KB1Bn2/QQq1rRRR/1QR3nb/1n6/1n2k3/3q3n/bq2B1N1/N3b2N w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 Nc6 h4 Bd7 b3 Bf5 h5 Bc8 Bb2 Nb8 Bf6 Ra6 f4 gxf4 g5 e5 Be7 Rb6 Bc5 Rg6 hxg6 e4 Bf2 e3 Qc1 exf2+ Kd1 Bf5 Qc2 Bg4 Kc1 Bd7 Qd1 Bc8 Kc2 Ke7 Kc3 Kd6 Kd4 h5 e4 f5 e5+ Ke7 Kc5 h4 d4 h3 g7 f3 e6 f4 g6 Kf6+ e7 Kf5 d6 a4 e8B c6 d5 h2 b6 a3 b7 a2 b4 Be6 b5 Qa5 Be2 f1N Qa4 f2 Nd2 f3 Rc1 a1Q Nb3 Rh7 Nh3 Qa7+ b6 Qb2 Na1 Ne7 g8B Nd2 d7 f1N Kd6 c5 Kc7 c4 d8N f2 d6 c3 d7 c2 g7 Ba2 Ne6 Ng6 d8Q Ne3 Nef4 f1Q Ng2 Nf3 Nf2 Nd4 Be6+ Ke5 Bf5 Nd7 g8R Re7 Rg7 Nd5+ Kc8 Qa5 b8R Nb4 b7 Nb5 Qb6 Qa7 Rf7 Bh6 Ra8 Kd5 b8Q Ndf8 Q8b7+ Ke5 Rg1 h1N Rh7 Qa5 Kb8 Qd1 Ra6 Qd3 Rcf1 c1B Bc8 Bcd2 Qa3 Be1 Qa4 Ng3 Nh1 Ne4 Rff7 Nf2 Qa3 Qe4 Qae3 Nh3 Q6a7 Qd8 Rc6 Kd5 Qeb6 Qd3 Rgf1 Ke5 Rfg7 Ke4 Rff7 Qc7+
2b5/1b2Nq1Q/1rb2K1R/R1b1rNQB/RBrQ3r/2N3b1/5Bn1/3bN2k w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qb3 a4 Qc2 Nc6 Qd1 Na5 bxa5 Qd6 Nh3 Qf6 Ng1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 c5 d4 f5+ Kf3 a3 e4 a2 g5 c4 a6 c3 b6 h3 g6 c2 a7 h4 g7 h2 b7 h3 b8Q+ Qc7 Be3 c1R Nc3 Ne7 g8N Rh4 Bf2 Ng6 Qb7 Qf7 Be2 Rb8 a8R Rc2 Qbb1 Rb6 Ra4 Rc1 Qbd3 Rc2 Ne7 Rc1 Rb1 a1B Rb5 Bb2 Qb1 Ba3 Qdd3 Bc5 Rba5 Bg7 Qbb5 Be5 Qb4 Rb1 Qbc4 R1b4 Qb5 Rc4 Bd1 Kc7 d6+ Kb7 d7 Bed6 Ke2 f3+ Ke3 Bg3 e5 f4+ Ke4 Kc7 e6 Kd6 Be3 f2 d8B f1R Nf3 Rf2 Ne1 Ra2 Bg4 f3 Bf2 Nf4 Bh5 Rd2 Qbb1 Re2+ Qe3 Qg7 Kf5 Ng2 Qed3 Qf7+ Kg5 Ree4 d5 Ke5 d6 Re3 d7 Ree4 Rf1 h1B Qc1 Re2 Qh7 h2 Qb2 Qf8 Kg6 Kf4 Bc7+ Re5 d8Q Qe8+ Kf6 Qd7 Bd6 Qb7 Bd4 f2 Rg1 f1B Bf2 Be2 Qc1+ Be3 Bb4 Bd1 Qb2 Bc5 Qc1+ Ne3 Qd4+ Be4 Rg2 h1B Rh2 Qc7 Nc6 Qd7 e7 Qd5 e8N Qg8 Qa1 Ng2 Nd6 Qd5 Ne7 Qg8 Qd3 Beb7 Qdg6 Bc6 Ndf5 Qd5 Kg7 Qf7+ Kh6 Ne3 Nb1 B6b7 Qd4+ Bhe4 Nc3 Rg4 Qf6 Bd5 Bg6 Bdb7 Rh5 Rh4 Qfg7 Kg4 Qf6 Kh3 Kg5 Kh2 Rh6 Ng2 Bh5 Bec6 Qfg7 Qe8 Kf6 Kh1 Qg5 Qf7+
q3q2K/8/1b2bBNB/q1rqQ1q1/1rbR2Q1/5N2/N1k1B1Q1/r1b1B1RR w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Bd2 g5 Be3 f4 Bc1 Ne7 h3 Nf5 gxf5 Nc6 h4 g4 Qd3 Ne5 Qd2 Nf7 Qd1 Ng5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kf7 b4 h5 c4 a5 e4 d5 f6 Ke6 c5 Ke5 g6 g3+ Ke1 g2 Kf2 h4 f7 h3 c6 a4 g7 d3 g8R Kd4 c7 a3 e5 a2 e6 d2 e7 h2 e8Q Rb8 b6 Be6 c8Q Bh6 f8N Qg5 Qdc2 d1Q b5 Qd2+ Be2 Qa5 b7 Rh7 b6 Rc7 Nc3 Rc5 Rb1 a1R Ng6 Bf7 Rg7 Be6 Rd7 Bg8 Bd1 Kc4 Qe5 d4 Be2+ d3 Bb2 Kb4 Rc1 d2 Rd4+ Rc4 Re1 d1Q Qg4 Rc8 b8B Rc5 Qce4 Kb3 b7 Rb4 Na2 Qd3 Ba7 Kc2 Q4d5 Qda6 b8B Qc8 Bc3 Qe8 Bb6 Qa8 Bd8 Qa5 Bf6 Qa8 Bd6 Qa5 Bf8 Qaa8 Nh3 g1B+ Kf1 f2 Kg2 f1B+ Kf3 Qa5 Ke4 f3 Rd1 Be3 Be1 f2 Ng1 Bc1 Nf3 Be3 Rg1 h1Q Qdd7 Bc1 Qg2 Bg7 Qdg4 Bh8 Bb5 Bfc4 Bh6 Bg7 Ba6 Bf8 Bb5 Be7 Ba6 Bd8 Bb5 Bb6 Ba6 Qd2 Kf5 f1Q Bb5 Bcf7 Be2 Bc4 Bfh4 Qf2 Kf6 Qfe3 Kg7 Qg5 Kh8 Qd3 Re4 Qd5 Red4 Qgd8 B4g5 Q8a8 Bf6 Qh4 Bc3 Qg3 Rdf1 Qf4 Be1 Qd2 Rh1 Qg5 Rfg1 Be6+
1N6/3b2k1/1r1q1bBr/1n2B1bQ/Bb2B3/n1N1p1R1/rR1K2Q1/R2N1b1Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 e5 g4 h5 b4 a5 b6 d5 c5 h4 b5 h3 g6+ Kf6 g7 a4 c6 d3 c7 d4 b7 a3 g5+ Kf7 b6 e4 g6+ Kf6 Kd2 h2 Nh3 a2 Bg2 Ra6 Rg1 h1R Nf2 Ra7 Qh5 Ba3 Nd1 Be7 Nbc3 Nd7 b8R Nh6 g8B Kg7 b7 Bg5 Bb3 Nb6 Ba4 Bd7 c8B Nf7 Bf3 Bf6 Rg3 Nd6 Ba3 Nb5 Bd6 Rh6 Be5 Qe7 Bg2 Qd6 Bf3 Kg8 g7 Bg5 f6 e3+ Kc1 e2 f7+ Kh7 f8Q e1B Qe7 Nc4 Be4+ Kg8 Bg6 d2+ Kc2 Bf2 f5 Nca3+ Kd3 Ra6 f6 Rb6 Ke2 Rh2 Be4 Bf5 f7+ Kh7 f8Q Rg2 Bc6 Bd7 Qff3 Bf6 Kd3 Be3 Be4+ Kg8 Qh1 Beg5 Qfh5 Re2 Ra8 Rh2 b8N Rf2 Rb1 a1B Rb2 Rh2 Bg6 Rg2 Bb7 Re2 Ne3 d1B Bbe4 Rf2 Ra7 Bf3 Ned1 Bg2 Rb1 Ra2 Rb2 Bh4 Kd2 Bf1 Q5f3 Bhg5+ Qe3 Qc7 Qc5 Qd6 Bh7+ Kf7 g8Q+ Ke7 Qgd5 Kf8 Beg6 Kg7 Qdg2 Qe7 Be4 Qd6 Bhg6 Rh7 Rc2 Bh6 Nb1 Rb2 Rc7 Rb7 Bf4 Ra2 Qch5 Bhg5 Be5 Rh6 Rc3 Bb2 Rb3 Rb6 Rc1 Nc2 Nbc3 Ba3 Ra1 Bb4 Rbb1 Nca3+ Rb2 dxe3+
Q1n2nK1/n2R3R/BRpBqN2/1QB2N2/5rN1/3Qb3/n4rr1/n1k3bQ w - - 0 1 legal: proof: d4 h5 e4 e5 dxe5 a5 f4 Rh6 c4 Qf6 b4 Nc6 g4 hxg4 a4 Nd4 c5 Rg6 f5 Qd8 c6 Rg5 e6 Ke7 b5 Kf6 Ba3 bxc6 Bc1 Nb3 b6 Nc5 Qe2 Ba6 Qd1 Bb5 axb5 Rh5 Nd2 Rh8 e5+ Kg5 Nb1+ Kh5 Bh3 Na6 f6 Kg6 Bg2 Rc8 Bh3 Nb8 Bf1 Qe7 Be2 Re8 Bc4 Qd8 Bf1 Re7 fxe7 Rh7 Qb3 Rh5 Qd1 Rh8 Kd2 Kg5 Ke3 f5 Kd4+ f4 e8N d5 e7 a4 e6 g3 Ke5 d4 h3 g2 b7 a3 b6 a2 Nc3 d3 Qa4 d2 Qb4 d1N Bb5 Qc8 Nce2 Rh4 Be3 Nc3 Ba6 Nb5 Rd1 a1N Qa3 Na7 Bc5 f3 Nd4 f2 Nf6 f1R e8Q Ne7 Qd3 Rhf4 Nf5 R1f2 Qed8 g6 Qb5 Bg7 Qdd3 Bh6 Rd2 Qe8 Rh2 Nec8 e7 Nd7+ Ke6 Bg7 b8R Bh6 b7 Nf8+ Ke5 Qf7 e8Q Qc4 Qdb1 Qa2 Rd7 Qf7 Q1d3 Qc4 Ne2 g1R Ne3 Rgg2 Ng3 Qa2 Neg4 Qe2+ Be3 c5 Rh1 c6 Nf5 c4 Rh2 Qa2 Bc5 c3 Qd8 c2 Qda5 c1N Qe1 Nb6 Qh1 Qc4 Kd6 Na2 Ke7 Qe4+ Kf7 Nbc8 Kg8 Qe6+ Kh8 Ra4 h4+ Kf4 h5 Bg5 h6 Rc4 h7 Bh6 Nge3 g5 Rh3 g4 Rh2 g3 Neg4 Bg5 Kg7 Ra4 h8Q Rd4 Rh7 Rb4 Qd4+ Kf3 Qdd3+ Be3 Ra8 Rc4 b8B Rf4 Bbd6 Rc4 Qe4+ Ke2 Rb8 Kd2 Rb6 Rb4 Qeb1 Rbf4 Qb1f1 Rg1 Qfd3+ Kc1 Qg8 g2 Qh8 Rd1 Qg8 g1B Kh8 Rdd2 Kg7 Ng6 Qe8 Nf8 Kh8 Ne7 Qa8 Nec8 Kg7 Rg2 Kh8 Rdf2 Kg7 Qe7+ Kg8 Qe6+
2Bn4/B4bQ1/pn1Q2K1/1NrRq2r/1n1nB1R1/2QBkn2/R2bNr2/7N w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 g5 c4 d5 cxd5 e5 a4 exf4 h4 gxh4 axb5 Bh6 Nf3 Bg7 Ng1 Bf8 Kf2 Kd7 Kf3 f5 e4 h5 d4 a6 g4 h3 g5 h2 e5 h4 g6 h3 b6 Bh6 e6+ Ke7 g7 Kf6 e7 Kg5 e8N Qc7 c6 Qe5 d6 Ra7 b7 Qe7 c7 Nd7 b8Q Rh7 d5 Nb6 d7 Qe5 d8Q+ Ne7 g8B Be6 c8B Rc7 d6 Bf7 d7 Rc5 Qdc7 Nc6 Nd6 Nd8 Nd2 Rh8 Ra2 Rh7 Kf2 f3 Qc2 Kf4 Bd3 Bg5 Qbb7 Rh5 Nb5 Bh6 Qc3 Bg5 Kf1 f2 Qd6 Ke3 Ne2 f4 Rg1 h1N Bgh7 h2 Kg2 f1R Bhe4 Nf2 Ba3 h1N Qa7 Nb7 d8R Ng3 Rd7 Nf5 Bb4 Rc4 Bc5+ Nd4 Rd8 Bh6 Rd7 Nd8 Qac7 Nd5 Ba7 Rc5 Qb7 Nb6 Qbc7 Nh3 Kh2 Bg5 Rg4 Ng1+ Kg2 Ngf3 Qb7 Nh4+ Kh3 f3 Qbc7 f2 Qb7 Re1 Qbc7 f1N Qb7 N4c6 Qbc7 Nh2 Nf1+ Kf2 Qb7 Bd2 Nfg3 Ke3 Nh1 Rf1 Qbc7 Nb4 Qb7 Ne6 Rd8 N2f3 Qbd7 Bg8 Qg7 Rf2 Rd7 Nfd4 Rd8 Rhf5 Rd7 Nhf3 Rd8 Nfg5+ Kh4 Bf7 Rd7 Bg8 Kh5 Ngf3+ Kg6 Rh5 Qb8 Nd8 Rd5 Be6 Qd6 Bf7+
r3bK2/k3n3/BN5q/1bR2pRQ/1Q1B4/bbN4B/q2Q2bn/1RNQ2r1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 Kb7 d4 f5 g4 f3 e4 h6 Kg6 c4 Kf7 h5 b6 c3 d6 b3 d5 h4 g6 f2 g7 c2 d7 b2 e5 h3 d6 h2 g5 Ra4 e6 Rh6 g6 Rah4 e7 Rh7 e8Q Re4 Ne2 Rd4 Be3 c1Q Bh3 f1B Nbc3 b1B Ra5 Rg4 Bd4 Rf4 Rc5 Rg4 Qa4 Qf4 Qb4 Nc6 Nc1 Nge7 Rg1 Kb8 b7 Qa5 d8Q h1B d7 Rh8 g8R Bb5 g7 Ka7 b8N Bc2 Rf1 Qa1 Qda5+ Bca6 d8Q Bg2 Nd7 Qh6 Nb6 Bb3+ Qd5 Rg6 Qa2 B5a4 Qd2 Qa2 Qd1 B6b5 Rg1 Nc8 Qee2 Bd6 Qh5 N8e7 Kf8 Ne5 Qd2 Ng4 Qf3 Qb2 Qfd1 Qa2 Rc4 Qb1 Qa5+ Ba6 Kf7 Qh7 Q1e1 Bc7 N1a2 Bh1 Qee2 Qa1 Rb1 Bd6 Nc1 Ba3 Qed1 Qh6 Qc5 Nh2 Qb4 Nc6 Ke8 Rg1 Rc5 Bg2 Rf8 Bb7 g8B Ba6 Bc4 Qa2 Rg8 Ne7+ Kf7 Bd7 Rg4 Ra8 Rg5 Qe6+ Kg7 Be8 Kf8 Qc6 Bg8 Be2 Bc4 Qg6 Ba6 B2b5 Qhe2 Qd6 Qh5 Qh6+
1bb1rn1n/p1qq3B/1BR3b1/5Q2/5BRN/2bQ2KQ/k1N1q3/2RB1nN1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 Na6 f4 e6 f5 exf5 axb5 Rb8 h4 Rb6 Ra2 Rg6 Ra4 fxg4 Ra1 g3 Qa4 g4 Qd1 Rg5 hxg5 Bd7 Bh3 Be6 Bf1 Bc8 e4 Kd7 b4 Kd6 d4 c5 g6 f5 e5+ Kc7 b6+ Kb7 b5 h5 d6 h4 d7 h3 e6 g2 Kf2 f4 g7 c4 d5 c3 d6 c2 e7 h2 e8N f3 Be2 Nc5 Bf4 c1Q Na3 Ne6 Qf1 Ne7 g8B Qcc7 Ng7 Ng6 Kg3 f2 Nf5 Bg7 Bh7 Nef8 Rc1 Bc3 Nc2 Qe7 d8Q Qed7 Qf6 Rg8 Bd1 Nh8 Qd3 f1N+ Kh4 g3 Qf7 Qe8 d7 Qe2 d8B Qd7 Qe6 Qc7 Kh3 Qd7 Nh4 Qc7 Ngf3 g1Q Qef5 Qd4 Rg1 h1B Rg2 Qdd7 Ng1 Ka8 b7+ Kb8 Rf2 Be4 Rf3 g2 Rg3 Ne3 Rg4 Nf1 Qh5 Bg6 Qhf5 Qce5 Bb6 Qed6 Bbe3 Kc7 b6+ Kc6 b8R Qe5 b7 Qec7 Ngf3 g1B Bb6 Bgd4 Ng1 Be5 Ra8 Bd6 b8Q Bde5 Qe3 Kb5 Qed3+ Ka4 Qb7 Kb3 Qg2 Nd2 Kg3 Ka2 Qh2 Ba6 Re8 Bc8 Re6 Nf1+ Kh3 Rg7 Rc6 Re7 Qhg3 Re8 Qgf3 Qcd8 Qh1 Bb8 Qh2 Ne3 Kg3 Q8c7 Qh3 Nf1+
1R1QN2R/nQ3n1B/q4p2/Rq4NK/b5B1/4k1n1/q3nNRB/nnbQ4 w - - 0 1 legal: proof: f4 c5 g4 e5 a4 exf4 d4 cxd4 g5 b5 axb5 f6 g6 a6 Nc3 a5 Nb1 Ke7 Bg2 Ra6 Bf1 Re6 Nf3 Ke8 Ng1 Re7 Kd2 Rf7 gxf7+ Ke7 Ke1 Qb6 Qd3 Qc7 Qd1 Qd8 h4 h5 Bh3 g5 Bg2 g4 Bf1 Rh7 Qd3 Rg7 Qd1 Rg5 hxg5 Bh6 Ra3 Bg7 Ra1 Bf8 Kf2 Kd6 c4 Kc5 e4 d5 e5 a4 g6 h4 b3 a3 g7 a2 e6 h3 b6 g3+ Kf3 g2 Kg4 f3 b7 d3 b4+ Kd4 c5 h2 c6 d2 b5 f2 b6 Ke3 c7 d4 Be2 f1Q Nc3 d3 Kh5 Nh6 g8B Qd6 e7 Nc6 e8N Bd7 b8Q Na7 c8Q Ba4 b7 Qa6 Ne4 Ba3 f8R Nf7 Nf3 g1N Nfg5 Qg2 Bf3 Ne2 Rg1 h1N Bg4 Qb5 Nf2 Nhg3+ Kg6 Qgc6 Bh7 Qca6 Qd8 Bb2 Rg2 Ba3 Rb1 a1N Rh8 Bb2 Qbc8 Ba3 b8R Bb2 Qe1 Ba3 Bb2 d1Q Be5 d2 Qb7 Qdb3 Qd1 Qa2 Rc1 Bb2 Rc5 Bc1 Bd6 Qbb6 Ra5 Qbb5 Qf1 d1N Be5 Nf5 Bh2 Ndc3 Kh5 Nb1 Qfd1 Nfg3+
5r1k/Nb1b2q1/NQr1pB1r/2B2bRB/3Q1b1N/R1r5/1r2rR2/Q3KR2 w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 axb5 Nh6 f5 Na6 d3 Nc7 d4 cxd4 f6 Nf5 gxf5 g4 Bg2 Ne6 Bf1 Ng5 hxg5 Qb6 Bd2 Qc7 Bc1 Qd8 b4 Kf7 c4 Kg8 g6 h5 g7 a5 c5 d5 b6 a4 b5 h4 b7 g3 b8N h3 b6 a3 c6 h2 b7 e3 c7 e2 Nh3 g2 Bb2 g1R Ng5 a2 Ne4 e6 Qd3 Rh6 Nbc3 Bd6 Nd2 Bf4 Nb5 Rg3 Na6 Qe7 Na7 Bd7 Nf3 Rf8 b8Q Kh7 g8R Qg7 Qa3 d3 c8Q d4 f7 Rg2 Rg1 h1B f6 Rg3 Nh4 Bb7 Qd8 d2+ Kf2 e1R Be2 d1R Bh5 d3 Rf1 d2 Qc3 Re8 f8R Rc1 f7 d1B Qa8 Re5 Qd4 Bc2 Q8b6 Bf5 Bc3 Rb5 Ke2 Rc2+ Ke1 Rbb2 Rf2 Qf6 Rg5 Qg7 Bb4 Rcc8 Be7 Rc6 Bf6 Rf3 Rd1 Rd8 Rd3 Rh3 Ra3 Rhc3 Re8 Rdc8 f8B Kh8 Re7 Re8 Rf7 Rb8 Bc5 Rf8 Rf1 a1R+ Bd1 Rb5 Qb8 Bbc8 Be5 Bg6 Q6b7 Bg3+ R7f2 Bf5 Bf6 Ra2 Bh5 Bf4 Q7c7 Rbb6 Qcb7 Rb4 Qb5 Rac2 Q8b6 Bb7 Qe2 Rbb3 Qed1 Rbb2 Qa1 Re2+
qr1NR1RQ/1R6/3QB2B/BrB1pQ2/bK2n3/rN1qb1p1/8/2N1nn1k w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 Kf6 b4 c5 d4 a5 Kd2 e5 Kc3 g5 b6 g3 h5 c4 b7 g4 h6 a4 d6 a3 h7 a2 b5 g2 d5 g3 d7 Ra4 b6 Bd6 Nd2 Ba3 d6 Ne7 Ne2 g1R Rb1 a1N Nb3 Qg8 d8N Bc5 d7 Be3 Bh3 Ra3 Kb4 c3 Qd5 c2 Qb5 Re1 Bd2 Qd5 Nec1 Qd3 Rf1 Re8 h8R Re2 Rg8 Rh2 Bg4 Rh6 Rh1 Rg6 Rhh8 Rh6 Bc3 Rf8 Bd4 Rg6 Bc5 Re8 Ne2 c1Q Rb2 Qh1 Nec1 Rf8 Rb1 Rf7 Re8 Rf8 Rg8 Qg2 Ne6 Qf3 d8B Nd7 b8Q Qa8 Qd6 Bb7 Bc7 Bc6 b7 Rh6 b8Q Rg6 Qa6 Ba4 Qab5 Rh6 Ba5 Rg6 Bd4 Nc5 Qc8 Ne4 Bc5 Nd2 Qcd7 Nc8 Qh7 Nf1 Qh8+ Kf7 f6 Rh6 Ng7 Kg6 f5+ Kg5 f7 Kf4 f6 Ke4 Bf5+ Kf3 Ne6 Kg2 Nd8 Kh2 Be6 Kh1 Qdd7 Nd6 Qe7 Nc4 Qd6 Ncd2 Qda6 Kg2 Qc4 Nf3 Bd7 Qad5 Re7 Nd4 Nd2 Rh5 Ne6 Rd8 f8B Qh7 f7 Kg1 Re8 Nab3 Kc3 Rb8 Nd8 Nc2 Bg4 Rg5 Bh6 Kh1 f8Q Rg6 Qcf4 Rc6 Qd6 Ne1 Be6 Qa7 Qf5 Qa8 Nf3 Qd1 Nd4 Nbd2+ Rb3 Ne4+ Kc4 Nf2 Rb7 Ne4 Kb4 Qd3 Ndb3 Rb6+ Qb5 Rxb5+
B5bq/R1Q1Q3/Q2N1QbN/q2pB2k/3B1n2/pKN1R1n1/n3R3/1rb3r1 w - - 0 1 legal: proof: d4 b5 e4 c6 a4 Bb7 axb5 Bc8 d5 cxd5 h4 g5 c4 gxh4 c5 f5 exf5 d6 cxd6 Ba6 Qd4 Bb7 Qd1 Bc8 Kd2 Kf7 Kc2 h5 f4 e5 b4 a5 g4 h3 g5 h2 f6 Kg6 f5+ Kf7 b6 a4 b5 h4 b7 h3 b6 e4 d7 e3 Nd2 e2 Bb2 e1Q Qe2 Ra5 Qa6 Qe2 Bd4 Nc6 b8R Bc5 g6+ Kf8 f7 Qe1 g7+ Ke7 b7 Rh7 Ne2 Ba3 Nc4 Rb5 Nd6 Bc1 Nc3 Rb1 Bb5 Nf6 g8N+ Kf8 Ra2 Kg7 Ra8 a3 Nh6 Qh8 d8Q Be6 Rb2 Nb4+ Kb3 Na2 b8B Qd2 Re1 h1N Qc7 h2 Bc6 Ng3 Ra7 h1B Re3 Be4 Ba8 Bd3 Nd1 Qa5 Nc3 Ra1 Rbe2 Be4 Ng4 Rh1 Nh6 Kh7 f8Q+ Bf7 Qac6 Rg1 Qa6 Nfh5 f6 Kg6 Qfe7 Bg8 f7 Nf4 f8Q Kh5 Qff6 Rb1+ Rb2 Nd3 Nb7 Rd1 Qcc5 Rg1 Bbe5 Nab4 Nd6 Nf4 Qcc4 Bg6 Qcc7 Ra1 Rg2 Na2 Rge2 Rb1+
Q1br3Q/bNQqN2B/pBq4R/2n2N1R/3R1r2/5p2/Bq1N3r/3K2nk w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 g5 c4 d5 cxd5 e5 a4 exf4 h4 gxh4 axb5 Bh6 Nf3 Bg7 Ng1 Bf8 g4 Kd7 d4 h5 e4 f5 e5 f3 g5 f4 g6 h3 c6+ Kc7 e6 Kd6 c7 h4 g7 a6 b6 h2 e7 h3 e8Q Be6 b7 Qd7 c8N+ Kc7 d6+ Kc6 d5+ Kc5 Bd3 Kd4 Ne7 Nf6 g8B Nc6 b8Q Ne4 Ra5 Nc5 Qc2 f2+ Kd1 Ne5 Bdh7 Nf3 Nd2 Ke3 Ne2 Ng1 Ng3 Bf5 Qc7 Rd8 Qb2 Bg7 Qbb8 Bd4 Qa8 Be6 Bf7 Rf8 Bfg8 f3 Ba3 Rf4 Bb4 Qc6 d7 Bg4 d6 f1Q+ Kc2 Kf2 Ba2 Kg2 Ngf5 Qa1 Qh8 Qb2+ Kd1 Nb3 Rd5 Ba7 Ba5 Nc5 Bb6 Ne2 Re1 Ng1 Re6 h1R Rh6 Rh2 Rd4 Kh1 Rh5 Rc8 d8R Rb8 Rg8 Rd8 Rg6 Qd7 Rgh6 Qc6 Ne3 Bc8 d7 Nd3 Bf7 Rf8 d8N Re2 Bc5 h2 N3d5 Kg2 Bb6 h1Q Ng8 Nc5 Nb7 Qh3 Ne3+ Kh1 Ne7 Rh2 Ba2 Qhd7 N3f5 Rd8
rkBKr1Q1/R4R2/Rn6/5B1r/N3Nq1b/p2bpr1B/n5Nr/Q2Q1Q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 fxg5 h6 g4 Nd7 g6 Nc5 g7 Na6 g5 Nb8 g6 Bf5 b3 Be6 Bb2 Bh3 Bf6 Bc8 Bg5 hxg5 Qc1 Kd7 Kf2 e5 Kg3 c5 Kg4 a5 Kf5 a4 h4 e3 d4 e4 d6 c4 b6 g4 d5 e2 b7 e1R h5 c3 b4 e3 b5 c2 h6 g3 h7 g2 b6 Na6 b8N+ Ke8+ d7+ Ke7 b7 Kd6 Nd2 Kc7 Ke6 Bc5 d6+ Kb6 Ne2 Ka7 Rh6 g1R Bh3 Rg2 Nf4 Ree2 Qf1 Nb4 Na6 c1R b8R Rh2 Ng2 Ne7 g8B Rc2 g7 Bb6 Nc5 Bb7 Rg6 Qe8 d8Q Nbd5 d7 Ra2 Rc8 Rb2 Rc7 Nc3 Qc8 Ba5 d8Q Qf8 Kd7 Ned5 Bge6 Rf2 g8B Qf4 Beg4 Rb5 B8e6 Re8 h8Q Rf3 Nde4 Bb6 Ra3 Na2 Qha1 Ba5 Rg7 Be1 Rf7 Bh4 Rc6 Ba6 Rd6 Rb4 Rb6 Rh8 Bgf5 Rh5 Qg8 Rb2 Qcd8 Be2 Rc6 Rb7+ Ke8 Rc7 Bc8 Kb8 Re6 Ba6 Ree7 Nb6 Qdd1 Bd3 Re6 Re7+ Kd8 Nd5 Rc6 Nab4 Rc7 Nb6 Ra7 Na2 Rc3 a3 Na4 Nd5 Ra6 Nb6 Rc7 Rh7 Rd7 Rh5 Rda7 Re8+
1Rr2qnq/pn6/2N1r2Q/3R4/Br1p1N2/2QBN3/k1NBKb1R/3q1Q1n w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 c4 Kf7 b4 e5 g6+ Ke7 f6+ Ke6 f7 h5 c5 Kd5 g5 e4 b6 h4 c6 d3 c7 Kc4 c8Q+ Bc5 f8Q d5 g7 e3 g6 d4 b5 f3 b7 e2 b6 h3 Ra5 h2 Bd2 Qe8 Na3+ Kd5 Nh3 Nc6 b8R Qd8 Nc2 Kc4 b7 Kb3 Nf4 Be7 Rd5 Na5 Qc3+ Ka2 Kf2 e1R Qc1 Nh6 g8B Re6 g7 Bb4 Bf7 Ng8 Be8 Be7 Be2 Bh4+ Kf1 f2 Ba4 Qe8 Qf6 Rh5 Qh6 Rhe5 Qd1 Rb6 Qc1 Rb4 Qe1 Re6 Qc1 Ne7 g8N Qd8 Nf6 Qh8 Qe1 Ng8 Ng4 Bg3 Nge3 Bh4 Bc1 d2 Bd3 d1Q Bd2 Bg3 Rf8 Bh4 b8N Nb7 Nc6 Rc8 Re8 Rc7 Rb8 Rc8 Rg1 h1N Rg2 Qa1 Ke2 Qb1 Kf3 f1Q+ Qf2 Qfd1+ Qe2 Bf2 Rh2 Qg1 Qe1 Qgg7 Ke2 Qf8 Qf1 Qd1+
bq1N2R1/2rRQ3/4Rn2/r1B1Q1bp/B1Q3Nk/5Bpb/1q1rQ2r/N3K3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 d4 Ke7 e4 c5 b4 h5 g6 Kf6 d6 a5 d5 g2 b6 g3 d7 a4 d6 a3 b7 c4 b8Q a2 b5 c3 g7 c2 e5+ Kf5 b6 f6 e6 Qc7 d8N Ra4 d7 Qa7 e7 Kg6 e8B+ Kf5 b7 Be7 Nf3 Kg4 Qe2 g1R Qbe5 f5 b8R f4 Na3 Rg2 Be3 Bg5 Bc5 Nf6 g8Q Rh2 Bg2 Bb7 Qgc4 Ra5 Rd1 c1R Nc2 Ba8 Na1 Rg8 Rc8 Qb8 Rf1 Rg6 Rc6 Rg7 Re6 Rc2 Rd3 Rd2 Bh1 Rh3 Nh2+ Kh4 Ng4 Rh2 Bf3 Rf7 Nc6 Rh7 d8Q Rb7 Rd7 Rc7 Bd5 f3 Qe7 Rb2 Nd8 f2+ Kd1 Rc2 Re1 f1B Bf3 Bg2 Rf1 Bh3 Ke1 Ng8 Rd2 Nf6 Ba4 Rb2 Rd7 Rd2 Bd5 Ng8 Rf8 Nf6 Rg8 Qb5 Nc2 Qb8 Bf3 a1Q+ Qd1 Qa2 Na1 Qa3 Qde2 Qab2
1N5N/KB1B2Bq/3bQ3/4p1rR/1R5R/1bpQrq2/kbQR4/1Nrb1q2 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 b5 c4 bxc4 f4 g5 a3 g4 f6 Nh6 f5 Nf7 a4 Ng5 hxg5 Nc6 Qf3 Nd4 Qd1 Nb5 axb5 Bb7 Rh4 Ba6 Rh1 Bc8 Kf2 Kf7 Ke3 h5 d4 a5 b4 c5 g6+ Kg8 b6 a4 d5 e6 d6 g3 g7 Kf7 b7 a3 b8R c3 b5 a2 d7 c4 Kd4 c2 b6 e3 b7 c3 Ne2 g2 Nf4 g1Q Qd3 h4 Ng6 h3 Bg2 Qe7 d8R h2 Bf3 Rh3 Nh8+ Kg8 Bc6 Qf1 Bd7 e2 Bh6 c1R Qc2 e1Q f7+ Kh7 Qd3 Ra5 f6+ Rf5 Kc4 e5 Kb5 Qe3 Ka6 Qef3 Ka7 Rg3 Bc6 Be6 Bd7 Bb3 Qc2 Qe8 Qd3 Bd6 f8Q Rg5 f7 Qe7 Qe8 Rg3 f8Q Bd1 Nf7 Kg6 g8B Kf6 Nh8+ Qf7 Bh7 Rfg5 Be4 Rh3 Qg8 Qh7 Qb3 Rhg3 Qbc2 Rh3 Rg1 h1B Rg4 Rg3 Rh4 Bg2 Ba4 Rh3 Qc6 Ke6 Bg7 Rhg3 Rf8 Bh3 Rf5 Bg4 Bb5 Bh5 Rd8 Bf7 b8N Rh3 Qa6 Bg8 Bb7 Bf7 Nd2 Bg8 Rb1 a1B Rbb4 Bb2 Nb1 Rhg3 Rff4 Rh3 Rh5 Bf7 Rfh4 Rhg3 Qe3 Bg8 Bc8+ Kd5 Qed3+ Kc5 Bbd7 Bb3 Bb7 Rh3 Rbg4 Rg3 Be4 Kb4 Bb7+ Qfe4 Qc6 Re3 Qcd5 Qef4 Qe6 Qfe4 Nd2 Ka3 Nb1+ Ka2 Rf4 Qef5 Rb4 Be7 Rf8 Q5h3 Rf2 Bd6 Rd2 Qhf3
2qQ3B/4KBR1/qn6/b2nN3/pN1Qp1bq/1n1RR2N/2B3p1/2krR2Q w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 d5 cxd5 f5 e4 b5 axb5 fxe4 Qe2 a4 Qd1 Ra5 bxa5 Ba6 Bb2 Bb7 Bc1 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 h4 g6 d4 g3 h5 e6 a6 g2 a7 c4 a8B e3 d6 e2 h6 e1N d5 c3 h7 c2 b6 Bd7 b7 Ne7 Bd3 Qb6 Nd2 Bg7 Nc4 Qd8 Nh3 g1Q Ne5 Rg8 h8Q Qg2 Ra3 Nf3 Re1 Nd2 Bb2 c1Q Bc2 Qf1 Rae3 Nb3 Qd4 Qa6 f3 Bc8 d7 g5+ Ke4 g4 f4 g3 d6 g2 f5 Nd5 Qh5 Nc6 b8N Nce7 Nbc6 Nb6 Nb4 Ned5 Ba1 Qe7 d8R Rh8 Rd7 Rd8 Ra7 Bh6 d7 Qh7 Rd3 Bd2 Qd1 Qh6 Ree3 Qg5 Qh1 Qg3 Bc6 Bc3 Bb5 Qge1 Bc4 Qh4+ Nf4 Kg5 f6 Be1 f7 Bc3 f8R Nf6+ Kf3 Kf5 Re8 Be1 Nh3 Bd2 Ng6 e5 Bf7 Be1 Nd5 Ba5 Nb4 Qh8 Re1 Qch6 Re7 Qh4 Rc7 Qg8 Rcc3 e4+ Ke3 Re8 d8Q Kg4 Rb7 Kg3 Ne5 Bg4 Be6 Qf8 Rg7 Qc5 Bb2 Qcc8 Bf7 Re6 Ba1 Rd6 Rdd1 Na8 Q4b6 Qb8 Nec6 Nh5 Rg8 Nc1 Rd5 Qbc8 Kd4+ Nd3 Ra3 Kf3 Bc3 Nc1 Kc5 Rd7 Rdd1 Rd2 Bh8+ Rd3 Qd4 Nf6 Qbd8 Nb6 Rc3 Nb3+ Kd6 Nd2 Ke7 Nb3 Rg1 Ke2 Ne5 Rd2 Rg7 Rd3 Rdf1 Kd2 Rf3 Qe1 Rg3 Kc1 Re3 Rd1 Rcd3 Qh4 Rge1 Nfd5+
2NbR3/1nbNB2R/pQnpQb2/2n2bp1/6k1/1K3q1N/6BB/B1rR1Q2 w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 h5 e4 c5 exf5 a6 d4 cxd4 g4 hxg4 b6 Rh5 b7 Qc7 b5 Qd8 b6 Ra7 bxa7 Rh8 Kd2 Kf7 a8R Kf6 c4 Kg5 Kc2+ Kh5 f4 g5 h4 e5 f6 d6 f5 e4 c5 d3+ Kb3 d2 c6 e3 f7 e2 f6 e1B c7 Bf2 Bg2 Bg7 f8Q Rh6 f7 Be3 Qf1 d1N Nc3 g3 Nh3 Nf6 Ne4 Kg4 h5 Nc6 b8Q Bf5 c8N Nd7 Qg8 Bb6 f8B Nb2 Be7 Bf6 Nc5 Qf8 Bf4 Bc7 Qe6 Nd3 Rd1 Rh7 h6 Rf7 Bd5 g2 h7 g1B h8B Rh7 Bg2 Rh5 Nb7 Bgb6 Bh2 Bd8 Nc5 Bbc7 Qb6 Rh7 Ng1 Rh3 Bg7 Re3 Nh3 Re1 Rd2 Rc1 Rd1 N7e5 Nd7 Nc5+ Ka2 Nb7 Kb3 Nd3 Rb8 Bc3 Bge5 Ba5 Ba1 Qf7 Bf8 Bf6 Be7 Bd8 Na7 Bc7 Re8 Bd8 Nc8 Qh5 Qc5 Bac7 Qb6 Nb8 Nf2+ Kh4 Bg1+ Kg3 Rh4 Nc6 Nh3 Qf3 Rh7 Kg4 Bh2 Ndc5+
8/R2pb1RB/Kn1b1NQN/5Br1/kqp5/2q1b1B1/p4r2/1NBRQ1Qb w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 a4 b5 axb5 Rh5 Nc3 Rh6 Nb1 Rh8 d4 c5 Ra6 c4 Ra1 Na6 c3 Bb7 Bg5 Nc5 dxc5 Be4 Be3 Bc2 Bc1 Rh3 Bd2 Rxc3 Bf4 Rh3 Bc1 Rh8 Kd2 a5 Kc3 g5 f4 e5 h4 a4 Kb4 g3 h5 g2 f6 e4 f7+ Ke7 f5 e3 c6 e2 h6 g4 c7 g3 c8B a3 b6 e1B+ Kb5 Bc3 b4 Bd3 b7 Kd6 b8R Ra6 f6 Kd5 h7 Ne7 Nh3 g1Q Bb7+ Nc6 Nf2 g2 Qe1 Bg7 f8Q Bh6 f7 Bf4 Ne4 Bfe5 Qg8 Bd2 Qg6 Be3 f8Q Rg8 h8N Bd6 Qfg7 Qf6 Nf7 Qc3 Nh6 a2 Ra8 Qf2 Ra7 g1B Bh3 Qfb2 Bf5 Be2 Rh4 Bf3 Rg4 Bh1 Rg3 Bec5 Nf6+ Kd4 Rg2 Ne7 Bbe4 Be3 Rg5 Rc6 Rg3 Rcc8 Ka6 Nd5 b5 Qbb4 b6 Rcf8 b7 Nb6 b8B Be7 Bf4 Bcd6 Rg5 Kc5 Bg3 Rf7 Q6h7 Na4 Be6+ Qe5 Nd5 Bg1 Bh2 Rf3 Nd2 Rg3 Nf6 Qa3 Bb2 Kb4 Rd1 Rh3 Bc1 Be3 Nb1+ Qec3 Bg6 Rf3 Bef5 Rf2 Bf4 Rd8 Qhg8 Kb3 Bh7 Qab4 Q7f7 Nb6 Qh5 Ba8 Qg4 Be4 Qgg1 Ka4 Bg3 Bh1 Qf7 Rg8 Rg4 Rg5 Qe8 Rh5 Rg7 Rg5 Qh5 Bd8 Qg6 B8e7
b2N4/K4B2/n3b3/1Qp1p3/2Rq2qR/NQR2Qpp/N2BrN1B/knr5 w - - 0 1 legal: proof: g4 d5 e4 b5 exd5 f5 a4 fxg4 axb5 e6 d4 Bd6 c4 Kf7 h3 gxh3 c5 Kf8 cxd6 Ke8 Kd2 Kd7 Kc3 g5 Kb4 h5 Ka5 c5+ b6 h4 b4 a6 f4 h2 f5 g4 b5 Ne7 f6 Rh6 f7 Qc7 f8Q Rh8 Bd2 Ng8 Ra4 Nf6 Bc4 Rh6 Na3 Nh5 Nh3 Qb7 Qff3 Ng3 Qdb3 Ne4 Nf2 Nc3 Rc1 Qc6 b7 h1B b6 Nb1 Rc3 h3 Qb5 Rh5 Bb3 Re5 Rac4 Re2 Ba2 Kd8 d7 Ke7 d8N Qd7 Nc6+ Kd6 Nb4 Qg7 Bb3 Qg5 Na2 Qh5 Bc2 Bg2 Bg6 e5 Bf7 Qg6 Bf4 Bf5 Bh2 g3 Qb3 Be6 Qb5 Nd7 b8R Qg4 Rh8 Nb8 b7 Bh1 Kb6 a5 Rh6 a4 Rh4 Na6 Qb3 Rd8 Ka7 Bg2 Nc2 a3 b8Q+ Nc7 Q8b5 Na6 Nc1 a2 Na3 a1Q Na2 Rf8 Qe3 Ke7 d6+ Kf6 d7 Ba8 d8N Kf5 d5 Qb2 Rc1 Qbd4 Qec3 Kf4 d6 Kf5 d7 Kf4 Nd3+ Ke4 Nf2+ Kd5 Bg8 Rf3 Bf7 Rd3 Rc2 Rd1 Qd3 Rc1 R2c3 Qg6 Nb7 Qg4 d8B Ree1 Qf1 Re3 Ba5 Re2 Nd3 Ke4 Nd8 Ke3 Qf3+ Kd2 Nab4 Rc2 Nf2 Kc1 Q3a4 Kb2 Qb3+ Ka1 Na2 Rcd2 Re3 Rd1 Bd2 Rh1 Rec3 Rc1
1r4R1/Bp1RR1q1/n3N1B1/6qp/1ppnQ3/2R2rnN/Bk1K4/n3N1QQ w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qc2 f3 Kd1 f2 Qb3 Kd7 Kc2 Ra6 Kb2 Ra3 Qd1 Ra8 Kc2 Ke8 Nf3 f5 Nd4 g5 Nf3 f4 Ng1 f3 h3 g4 Bg2 Bd6 Bf1 Bf4 gxf4 g3 Kb2 Qg5 Kc2 Bg4 hxg4 Qd8 e4 Kd7 a4 Kd6 d4 c5 a5 h5 f5 g2 a6 Nd7 g5 Nb8 g6 Ra7 g7 Qg5 f6 Qg4 e5+ Kd7 e6+ Kd6 e7 Qg5 e8B Nc6 f7 Nce7 f8N Ra8 a7 Nc6 Ra3 Qg3 Nh3 g1N Ne6 Rd8 a8Q Qe5 Kd2 Rh6 Rc3 Rh7 Na3 Nf6 g8R Ng4 Qa7 Ne3 Bg6 Rf7 Bc4 f1Q Ba2 c4 Nc2 f2 Ne1 Rb8 Qe2 Nc2 Qe4 Na1 Qc5+ Kd7 d6 Ne2 d5 Ned4 Rg1 Qh8 Rg5 Qg7 Re5 Qg1 Qh1 Nb5 Qd4 Nc7 Qde4 Nd4 Bb2 Rd8 Bc1 Na6 Bb2 Kc8 d7+ Kb8 d6 Ka7 Bc1 Rb8 d8Q Rf3 Qg5 Kb6 d7 Qg3 d8R f1N+ Kd1 Qf4 Qgg1 Qg5 Be3 Ng3 Rdd5 Kc6 Kc1 Kb6 Kd2 Kc6 Rd7+ Kb6 Nc5 Ka5 Ree7 Kb5 Ne6 Ka4 Rc1 Ka3 Rc2 Q5e5 Rc3+ Kb2 Bf2 Ndc2 Bc5 Nd4 Ba7 Qg5+
N1nq2Q1/k1b1QR2/r4rNr/BQq4R/RBr5/6Qn/B1qrbb1K/5N2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 Kg2 Kc7 d4 Kb7 e4 f5 d6 h5 e5 h3+ Kh2 a4 d7 c4 g5 f3 e6 a3 e7 h4 e8Q c3 b6 a2 b5 f4 d5 c2 d6 f2 g6 f3 g7 Ne7 g8Q Ng6 Qd3 Nf4 Qa3 Nc6 Qe4 Rh6 Qb2 Ra6 Bd2 c1Q Bb4 Qc2 Qe7 Na7 Bc4 f1Q+ Ne2 f2 Nd2 Qfc1 Nf1 Qe3 Qa3 Qc5 Qag3 Bg7 Be6 Bd4 Bd5+ Kb8 b7 Rf6 Rb1 a1B Ba2 Be5 Rb3 Bad4 Ra3 Rh6 Ra4 Be3 Nd4 Rf6 Ne6 B3d4 Nc7 Be3 Nd2 f1R Na8 Rd1 Rf1 Bf2 Rh1 Qa5 d8N Bg4 d7 Nc8 Nf7 Qd8 Nf1 Rd2 Nh8 Ka7 b8R Be2 Rb6 Bb8 Rc6 Bc7 b6+ Kb8 b7 Ka7 Ng6 Qe4 Rg1 Qec2 Kh1 h2 Rd6 Qa5 Rd5 Qac5 Rh5 Nh3 Kg2 Qe8 d8B h1R Ne3 Qd7 Rf1 Rg1+ Kh2 Qdd5 Qgd6 Rg4 Qde5 Rc4 Qg3 Bd6 Bda5 Bc7 Rb1 Qdd3 Nf1 Qd8 Rb3 Ng5 Rf3 h3 Kh1 h2 Rf5 Rfe6 Rf7 Nh3 Kg2 Rf6 Kh1 Rad6 Kg2 h1R b8Q+ Ka6 Qb5+ Ka7 Nh2 Ra1 Nf1 Ra6 Kh2 Rad1 Rf5 Rdd6 Rh5 R1d2 Nh4 Rh6 Ng6 Rf6
2Bb2k1/3RnRr1/3n1Q2/4qNQb/1N1BN1r1/3brK1R/1r2r3/qqB2BQ1 w - - 0 1 illegal: No possible last move
1n2k3/BK3r1B/1R3q2/r2nN2B/b2NbQnb/Br1r4/RNR5/2q1rQQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 c5 g4 f3 d4 f6 b4 a4 b6 a3 d6 f2 Kd5 c4 e4 c3 g5 h3 d7+ Ke7 b7 h2 e5 f5 e6 h4 g6 h3 g7 f4 b5 f3 b6 a2 Ba3+ Kf6 e7 Kf7 e8B+ Kf6 Bd3 f1B Nd2 f2 Ngf3 c2 Nc4 c1Q Bh7 Bd6 Nfe5 Ke7 Bh5 Bd3 Nb2 f1R Qe1 Rf5 Qf1 Rf7 Qf4 Qf8 d8N Bd7 Ne6 Ba4 Qf1 Nh6 g8Q Ke8 Qgg1 Be7 Rb1 Ng4 Ra1 Na6 b8B Bh4 Ba7 Nb8 b7 Qe7 Rb1 Qf6 Kd6 a1N d5 Bdc2 Kc5 Rg8 Kb6 Be4 d6 Nc2 Nd4 Nce3 Ra1 Rf8 Ra2 Rg8 Qf4 Rf8 Qgf1 Rh8 Rg1 h1R Rg2 h2 Re2 Rg1 Rc2 Rg3 Qg1 h1R Qgf1 Na6 Qg1 Rd8 b8R Rg8 Qgf1 Rg5 Rb7 Nb8 Qg1 Nd7+ Ka6 Rgh3 Rb6 Nd5 Kb7 Rb3 Qff1 Rhh3 Qf4 Rhd3 Qff1 Rc8 Qf4 Nb8+ d7+ Kd8 Qff1 Rc5 Qf4 Rg8 Qff1 Re8 Qf4 Ke7 d8Q+ Kf8+ Qc7 Re6 Qff1 Ke8 Nd7 Ra5 Qcf4 Bf5 Rc6 Re1 Rc2 Ne7 Ne5 Be4+ Kc7 Nd5+ Kc8 Nd7 Kb7 Nb8+
N1Qr1K2/N1Rqr2B/2Q1N2B/3b1n2/3NR3/1nQ2bBq/Rrn1n2b/1k3n2 w - - 0 1 illegal: No possible last move
r3RqBQ/1k3Nq1/q6R/KB3N1q/1Qbq1b2/2N2nRB/3nrQ1q/2b1B3 w - - 0 1 illegal: No possible last move, all moves rejected
B2BR1bQ/b2k2K1/3B1BN1/3R2nq/nn3N1N/q1q1R3/2r1qr1Q/2q2Q1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 h3 e4 f3 d4 f4 b4 c4 d6 c3 g5 h2 b6 c2 d7+ Ke7 d5 a4 b7 a3 b5 h4 g6 a2 g7 f2 b6 f3 Bb2 c1N Nd2 h3 Ne2 Qe8 Nf4 Nb3 Bg2 f1Q d8B+ Kd7+ Kf5 f2 e5 Rh7 d6 Qc4 Nf3 f1Q Nh4 Nc6 b8B Nh6+ Kf6 Nb4 g8N Qfe2 b7 Qc3 Ne7 Nc5 Neg6 Nf7 Qf1 Ng5 Rd1 a1Q Rd5 Qaa3 Bbc7 Ra7 b8Q Na4 Rg1 h1Q Ba1 Kc6 d7 h2 Bd6 Rc7 Be4 Ba6 Rg3 Bc4 Re3 Qg1 Bb2 h1Q Bf3 Rh8 Ba1 Be7+ Kg7 Rf8 Bg2 Rf6 e6 Bb3 Qf2 Qgc1 Qf1 Qcc4 Bd4 Q4c3 B4e5 Rf8 Bf6 Qh5 Bde5 Bd6 e7 Bc5 Bd6 Ba7 Be4 Ba2 Bf3 Nc2 Qb2 Nb4 Qh2 Rc8 Bb6 Rc7 d8Q Bc4 Qb8 Kd7 Be4 Rc5 Bd8 Ba2 Rd2 Bc4 Ba8 Bg8 Rd5 Qe2 Nh8 Q8h5 e8R Q3e1 N8g6 Rc2 B8c7 Qe1d2 Bcd8 Qdc3 R8e4 Nd3 Nh3 Bf7 Ba5 Q3e1 Bd4 Be6 Bab6 Rf4 Bf6 Bf7 Qh8 Bg8 Re8 Nb4 Bbd8 Rf2 Nhf4 Qec3
rR2Nq1b/1r2Q3/1Qb1BN2/bR4n1/4RB1r/n1k3N1/Br2B1QK/b2n1r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 Kg2 c5 b6 a5 g5 h5 e5 f5 d6 h3+ Kf2 a4 b7 c4 b5 h4 d7 c3 e6 h2 Kg2 a3 e7 c2 e8B a2 g6 Nh6 g7 Na6 b8Q Nf7 g8B Rh7 b6 Ng5 b7 Bg7 Qe2 Bh8 Bef7 Nc7 Nc3 Qf8 d8N Nb5 Ne4 Bd7 Rb1 a1B Ba2 Na3 Rb5 Bc6 Nf7 Rg7 Nd6 f3+ Kf2 f4 Nf6 h3 Nde8 Rd7 d3 Kc3 d4 Rc7 d5 Re7 d6 Rh7 Bg2 Re7 Kf1 f2 Qd8 Rg7 Qb6 Rf7 b8R Rb7 d7 Nf3 Qe7 Ng5 Ke2 f1N Kf2 f3 d8Q Ne3 Kg3 Nd1 Bf4 f2 Bgf7 c1B Qd5 Kc2 Bf3 Bd2 Bg8 Ba5 Be6 Kc3 Qe4 f1R Bh5 Rf2 Qg2 Rb2 Ne2+ Kc2 Rg1 h1R Re1 h2 Bhg4 Rf1 Bf3 Nf7 Kh3 Kd3 Ng3 Kc3 Re4 h1R+ Qh2 Qg7 Be2 Ng5+ Kg2 Qh6 Qhg1 Rh4 Qgf2 Nh3 Kh2 Qf8 Qg2 Ng5+
2Q1N2K/3Qbb1B/rRn5/2Rq2Q1/k1q1r3/2nqq1NN/3Q1r1R/BB1r1q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 a5 d4 a4 e4 f3 g4 h3 g5 h4 g6 a3 b6 h2 b5 f2 d6 c4 g7 h3 b7 a2 d5 c3 b6 f4 Nd2 f3 Bd3 f1Q Bb2 f2 Bb1 Ne7 Kf6 c2 g8B c1Q e5 Qd3 e6+ Ke8 Nf1 Qce3 Qd2 Ra4 Bh7 Nbc6 b8R Qc7 b7 Re4 d7+ Kd8 Ng3 f1Q+ Bf5 Qcf4 Bc3 Kc7 d6+ Kb6 d8Q+ Kb5 d7 Ka4 Be5 Ng6 e7 Rh5 e8N Nge7 Kf7 Nd5 Kg8 Be7 Bh7 Nc3 Kh8 Rf5 Qc7 Rf6 d8Q Be6 Qcd7 Bf7 Rc8 Qg4 b8Q Rf2 Rc7 Qe6 Qbc8 Qec4 Rb7 Qd6 Rb6 Qfd3 N1e2 Q6d5 Rc1 h1R Nf4 h2 Nh3 Rd1 Bd4 Bb4 Qg5 h1Q Rc2 Be7 Rcb2 Qd6 R2b5 Qhe1 Rc5 Qdd5 Bg6 Rc1 Bh5 Ne2 Bc2+ Ka3 Bg6 Qd1 Rab1 a1R Bh7 Ra2 Ba1 Nc3 Qf6 Q1e2 Qg5 Rh1 Rg1 Qe1 Rg2 Q1e2 Qdg4 Rd1 Rh2 Qe1 Bb1 Qef1 Ra6+ Kb3 Qgd7 Ra5 Rb6+ Ka4 Nc7 Ra8 Ne8 Ra6
k3Nn1Q/1q4N1/1RBQrn2/K1Q2bq1/r5B1/2Nq2Bn/3R1BR1/4qnbq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 h5 d4 a5 Kd2 c5 Kc3 Kc7 e4 Kb7 g5 f5 g6 h3 b6 c4 e5 h4 e6 f3 d6 a4 g7 h2 d5 f2 b5 f4 Kb4 c3 e7 h3 e8N f3 Ra2 c2 Be3 c1N Ne2 a3 Qc2 Ra6 Rg1 h1N Bg2 f1Q Nd4 h2 Ne6 f2 Be4 Ne7 g8B Ng6 N6g7 Qd3 Be6 f1Q Bg4 Nf2 Rg3 Nb3 Rg2 h1Q Qc4 Qd7 Nc3 Ka8 Re2 a2 Qd4 Nc5 b7+ Ka7 Rc2 Qc7 Qc4 Nd7 b8B+ Ka8 b6 a1Q Ne6 Qfe2 N6g7 Ne6 Kb5 Rh6 Rd2 Ra4 Nf5 Nde5 d7 Nh3 d6+ Qd5+ Bc5 Ne7 Bef3 Nf2 d8Q Qae1 Nfg7 Nf5 Qh4 Ne3 d7 Nf1 d8Q Qd3 Be4 Rf6 Qh8 Nd7 Qe7 Qa7 Bg3 Nh3 Qd8 Be7 Qc7 Bd8 Qd6 Nef8 Bef3 Rg6 Be4 Bg5 Bef3 Be3 Be4 Qc7 b7+ Kb8 Bef3 Qg5 Bd5 Bg1 Bc6 Ne5 Bcf2 Bf5 Nd5 Re6 Nc3 Qde3 Qcd4 Ned7 Q4d5 Ka7 b8R Nf6 Rb6 Qb7 Qc4 Ka8 Qcc5 Rf4 Ka5 Qd3 Qb4 Rfe4 Qbc5 Ra4+
1qQB1N2/1NR1b3/nr2B3/3r1R1b/qN2rr2/k1qrN1B1/3Q1Knq/1R1Q4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 a5 g6 h5 b6 f3 g7 a4 b7 f2+ Ke2 f4 b5 a3 b6 f3+ Ke3 a2 Bb2 c4 Ne2 c3 Bh3 f1R Na3 f2 Rc1 a1Q Nf4 c2 Nd3 Ra4 Be6 h3 Nb4 Nh6 g8Q h2 Qg5 Na6 b8N h4 b7 h3 Nd7 Be7 b8R Ng4+ Ke2 Rh4 Nf8 Rh6 Qgd2 Ne3 Rb5 Ng2 Rg1 h1Q e5+ Kc7 Kf3 h2 Nc4 Rg6 Rb1 c1Q Ne3 Qc3 Rc5+ Kb6 d6 Bd7 d5 Be8 d7 Qb8 Rc7 Ka5 d8N Rf6+ Kg3 Bh5 d6 Ra3 d7 Re1 Bc1 f1R Nb7+ Kb5 d8B R1f4 Rf1 Qa2 Bg8 Rb6 e6 Qg1 Bf7 h1R Rf3 Qh2+ Kf2 Qab3 Bb2 Ka4 Ba1 Qcc2 Be5 Qbc3 Bg8 Rb3 Bf7 Ka3 Bg8 Rf5 Bg3 Rd5 Rf5 Qe4 Nc6 Qa4 Nb4 Qcc6 Bf7 Rbd3 Bg8 Qc3 Bf7 Bc5 e7 Rhg1 e8Q Be7 Be6 Rh1 Ng4 Re4 Ne3 Rg1 Qd7 Re1 Qc8 Rh4 Ng4 Re4 Ne3 Rhf4+
1b1n1r2/q2q1RN1/1QN1B3/Qn1q2k1/2r2R2/Q2Q2N1/b1rq4/RBBb2bK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 g4 Kf6 Kg2 c5 d4 h5 e4 a5 b4 f3+ Kh2 c4 d6 f2 d5 a4 b6 c3 b5 c2 b7 h3 b6 h4 d7 a3 d6 a2 Bf4 c1B Qe1 Nc6 b8Q Nge7 b7 Ra4 Qe3 Nd4 Nd2 Nb5 Qc7 Nc6 b8R Rc4 Bd3 f1B Ngf3 Be2 Nd4 Bd1 g5+ Kg6 e5+ f5 Kg1 h2+ Kg2 Bb7 Rf1 h1R e6 Rh2+ Kg1 h3 e7 Ba6 Ne4 Rhc2 e8N h2+ Kh1 Bc8 Qh3 Be3 Qb6 Bg1 Bc1 f4 Rb7 f3 Ng7 f2 Qe3 Qe8 d8Q Be6 d7 Bd6 Qa8 Bb8 d8Q Qf7 Qa3 Rf8 Ng3+ Qf5 Qd5 Nd8 Nc6 Bg8 Re7 Bf7 Re4 Qd7 Qd2 Bg8 Qda5 Be6 Rb1 a1Q Rf4+ Re4 Qdd4 Ba2 Qd5 Qc3 Ra1 Qd2 Rf7 Rb2 Bb1 Rc2 Qdd3 Qa7 Re1 f1Q Re2 Qf5 Rf2 Rec4 Rf4 Kh7 g6+ Kh6 N7h5 Qe6 g7 Kg5 g8B Qed7 Ng7 Ra4 Bh7 Rac4 Bf5 Be2 Kg2 Bf3+ Kf1 h1Q Bg4 Qh4 Be6 Be2+ Kg2 Bd1+ Rf2 Qhf4 Kh1 Qf5 Rf4 Qfd5+
1Rr2K2/Qn4BN/1QbBBN1q/1rR1n3/1r6/b2r2R1/2R1bkb1/qNQn4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 g4 a5 d6 h3 d3 f3 b6 h2 g5 f4 b3 h4 g6 f2 g7 f3 d7 a4 Ke6 Kd4 Kf7 c5 e5 h3 e6 a3 e7 c4 e8N c3 b7 a2 b4 c2 b5 Nc6 b8Q Qh4 d8R+ Bd7 b6 Rh5 b7 Na5 Bd2 c1R Bh6 Ne7 g8R Rc4 Bg7+ Ke3 d4 Nec6 d5 Rb4 d6 Rhb5 Nf6 Qh6 Bc4 f1R Be6 Kf2 Qc1 Rd1 Qa7+ Rdd4 b8B Nb7 Rc8 Be7 Rh8 Ne5+ Kg8 Be8 Rc5 Bc6 d7 Rd3 d8Q Bf8 Bd6 Rc8 Nh7 Be7 Ne2 Bf8 Rg1 h1N Nf4 h2 Rg3 Be7 Nc3 Bf8 Rb1 a1Q Nh5 Rb2 Qc2+ Ke3 Bb8 Nf2 Rc1 h1B N5f6 Bg2 Nb1 Nd1 Qdb6 Rc7 Rd5+ Bc5 Qc4 Ke2 Qc3 Ba3 Rc5 f2 Qd2+ Kf1 R1c2 R2b4 Qc1 Kg1 Nd7 f1B Ndf6 Nd7 Kf7 Be2 Rd8 Ne5+ Kf8 Kf2 Rc8 Re7 Bd6 Rc7 Rb8 Rc8+
R1R2Rr1/2Q1nB1r/4QB2/K1R1qB2/2bN1n2/2br3r/1n2bN1b/k1nN3Q w - - 0 1 illegal: No possible last move, all moves rejected
Nb1BQ3/N1NBR3/8/1b4n1/1q1nqQ2/r2pQ1qR/KBk1br2/1r1n1R1Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 c4 Ke5 Kc2 Ke4 Kb3 d5 f4 h5 g5 e5 g6 a5 g7 d3 b6 d4 f6 h3 c5 a4+ Ka2 h2 b4 d2 b5 h4 f5 a3 c6 h3 b7 d3 b6 Ra4 f7 Rh6 f6 Bg4 c7 Bc5 f8Q Qe7 c8N Nc6 b8Q Bd6 f7 Nf6 g8R Kd4 b7 e4 Na7 e3 Qbe8 e2 b8Q e1Q Nc3 Ne4 Bb2 Ng5 Rg7 Qg3 Nf3+ Kc4 Qh8 Rf6 f8B Nd4 Qe2 d1N Qe3 Bc7 Rf7 Qb4 Be7 Bd7 Bg2 Bb5 Bd8 Raa6 Rf1 h1Q Na4 h2 Bh3 Qhg2 Qh7 h1B Bd7 Rf5 Qh6 Rf4 Qa8 Bb8 Re7 Qe2 Qhf8 Bg2 Rh1 Bf1 Rh3 Qee1 Qae4 Be2 Qh8 Rf7 Q4f4 Ra5 Nh4 Qh1 Ng6 Qe4 Nf8 Ra6 Ne6 Rb6 Qd6 Rf2 Qdf4 Ra6 Nc7 Rb6 Kb1 Kb3 Qhh5 Ra6 Nb6 Ra5 Nba8 a2+ Kc1 Ra6 Rb1 a1R Qhf3 R1a5 Qh1 Rb6 Ra1 Raa6 Kb1 Rb7 Ba3 Kc3+ Ka2 Kc2 Rb1 Nb2 Rf1 Nd1 Re6 Rc6 Re7 Rc3 Bb2 Rb3 Bc1 Rb1 Bb2 Rb6 Ba1 Rc6 Bb2 Rc3 Rh6 Rb3 Rh3 Ra3+
1Br5/1QQbn2p/rR6/NnQ1K1n1/4BN2/b2B2N1/1k3B2/brq1bRbR w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kd4 b4 c5 b6 a5 b7 h3 b5 e6 d6 h2 g5 a4 b6 c4 d7 a3 g6 e3 g7 a2 Ne2+ Kd3 Nbc3 Ra5 Nd5 c3 Qb3 Ne7 g8B Qe8 d8Q Nec6 Ng3+ e2 Qc7 Nd4 Ke5 Qc6 f4 Bc5 f5 Ra6 f6 Bd7 f7 Nb5 f8Q Bg1 Bf7 Rg8 Qc5 Rc8 Qbb4 Kc2 d4 e1R+ Be3 Rb1 Bf2 Kc1 Bd3 c2 Ke4 e5 Bg6 Rh8 Bf5 Rc8 Qb3 Qh6 Nf4 Nc6 b8B Ne7 b7 Qg5 Qf7 Kb2 d5 c1B d6 Qh6 Ba7 Qg5 b8R Qh6 Rb7 Qg5 Rb6 Qh6 Kf3 e4+ Kg4 e3 Bb8 e2 Kf3 e1B Ke4 Bcd2 Ke5 Bb4 Bfe4 Ba3 Qfd5 Ra8 Qdb7 Ra6 Ne6 Qc1 Nf4 Bf5 d7 Be6 d8N Bd7 Be3 Bgf2 Rf1 h1N Nc6 Bg1 Na5 Nf2 Bd2 Nh3 Be3 Ng5 Bf2 Bh2 Rh1 Bg1 Qd8 Qc3+ Qd4 Rc1 Rd6 Bd2 Rb6 Re1 Qdc7 Rf1 Re1 a1B Re3 Rb1 Re1 Ka2 Rd1 Qc1 Rf1 Be1 Nb3 Nc3 Qdc5 Kb2 Na5+ Nb5
1QqRq1n1/n2B2R1/7k/1n1q2Rq/B2r1R1r/2B2NN1/pKb1Qb2/1N1Qq3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 Kg7 g4 h5 b6 a4 g5 f3 g6 a3 e5 f4 e6 f2 b5 h3 e7 a2 e8B f3 d6 c4 d5 h2 d7 h4 d6 h3 b7 Nc6 b8Q Rh4 b6 Na7 Bb2 Kh6 b7 Qc7 d8Q Bf5 d7 Qc8 g7 Bc5 Be2 f1Q Qe7 f2 d8R Bc2 Bg4 Qe2 Ba4 f1Q Bgd7 Bf2 Nf3 Qe6 Rg1 h1Q Rg3 h2 Rg5 Qec6 Qee2 Qe1+ Qed2 Qe8 Q2e2 Qh5 Rf8 Qg1 Rf4 h1Q Qc7 Qd5 b8R Qhe8 Rb7 Qg4 Qb8 Qgh5 Rc7 Qcb7 Rc8 Qg1 Rd8 Qc8 Ba3 Qf1 Kb2 Qe1 Bb4 c3+ Ka3 Bg6 Ba5 c2 Kb2 c1N Bd2 Ne7 Bc3 Nb3 g8N+ Kh7 Rg1 Bc2 Nh6 Ng8 Nf5 Nd4 Rg5 Ndb5 Ng3 Kh6 Nbd2 Nc6 Rc1 Ra6 Nb1 Nca7 Rg7 Bb3 Rc2 Rd6 Rd2 Bc2 Rdd4 Qdb7 Rd5 Qa8 Rdf5 Rd4 Rfg5 Qd5
3nqbR1/N1B5/1K2Q3/rR2r3/b1RQbN1k/3qnp1N/b2Q1q2/3BbRB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 g4 Kf6 d4 Kg5 b4 h5 e4 f5 e5 a5 d6 c5 b6 c4 e6 a4 d5 h3 b5 a3 b7 h4 d7 h2 b6 c3 e7 c2 e8Q h3 d6 a2 Qe6 Rh4 Qd4 Ra6 Na3 Ra5 Be2 Nc6 b8B Rh5 b7 Kh4 g5 Nf6 g6 Nd5 g7 Qe8 g8R Nd8 Bc7 Ne3 b8R Ba6 Rb2 Bb5 Bd1 Ba4 Rb5 Rg5 Rab1 a1Q R1b4 Qc3 Rc4 Qd3 Bd2 c1B Bb4 Qb3 Bc5 Bd2 Ke2 Qa2 Kd3 Be1 B5b6 Qf2 Ba7 Nb7 d8N Rh5 d7 Rg5 Nf7 Nd8 Ne2 Rh5 Rf1 h1B Ng5 h2 Nh3 Bd5 Bab6 h1B Ba7 Ng4 Bab6 f3 Nef4 Ne3 Bc5 Nc6 d8Q+ Rg5 Rcb4 Ba2 Rc4 Bg2 Q8d6 Nd8 B5b6 Bh1 Qb4 Rh5 Qd2 Rg5 Rd5 Bg2 Nb5 Bh1 Na7 Rh5 Ne2+ f4 Rb5 Re5 Kc3 Qg1 Bc5 f2 Kb4 Be4 Rc2 f3 Rc4 Qg7 Nef4 Qgd7 Nc8 Ra8 Na7 Qh7 Ka5 Qf5 Rh1 f1Q Kb6 Qd3 Rf1 Qfg6 Nc6 Ra5 Na7 Qg2 Q4c3 Nf5 Bg1 Qf2+ Qd4 Ne3
6B1/nq1B1r2/q2RR1rr/2NB2R1/Qr6/1N1KpN2/1k1Br1Q1/1nbb1qQ1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 c4 Kf6 b4 Ke5 g4 h5 f6 a5 f3 d5 f7 h3 c5 h2 b6 h4 b5 d3 f4+ Kd4 c6 e5 g5 a4 g6 a3 c7 e4 b7 h3 g7 a2 f5 e3+ Ke1 d2+ Ke2 Rh6 b6 Qf6 Nc3 Ba3 f8Q Ra7 Ne4 Rg6 Qe8 Nc6 b8Q Nge7 Nc5 Kc3 g8B d4 b7 Nd5 Qa8 Qe6 Rb1 a1R b8N Ra2 f6 Rc2 f7 d3+ Kf3 Qd6 Ke4 Bg4 c8B Re7+ Be6 Na7 f8R Rf7 Bg2 Qa6 Nbd7 Bh5 Qg4 d1R Rb5 Re2 Nf3 d2 Nb3 Bb2 Rg1 h1R Ndc5 h2 Rb6 Kc2 Qa4 Nc3+ Kd4 Nb1+ Ke4 Rde1 Rd8 d1Q Bd2 Bc1 Rdd6 Kb2 Bd7 Rf1 Qg3 Rff2 Re6 Qf1 Rbd6 Bg4 Bb5 Rf4+ Kd3 Rc4 Bd7 Bh5 Ng5 Rf7 Bd5 Bg4 Nf3 Rb4+ Qb5 Rh6 Rg2 Rg1 Qf2 Bh5 Rg5 Rg3 Qg1 h1Q Rge5 Rgg6 Rg5 Qb7 Qa4 Qh2 Rb6 Qd6 Ra6 Qdb6 Rd6 Bg4 Re6 Qa5 Rad6 Qaa6+ Bc4 Bh3 Ne5 Bg4 Bc6 Qc7 Bd7 Qcc8 Qag2 Qcb7 Nf3 Bf5+ Kd4 Rb6 Bd5 Bc2 B5c6 Bd1 Bd5 Rb5 Kd3 Rb4+
q3Rnn1/1r1N1kBN/1R1r4/Q1p5/B2r2KR/b1bNQ3/1r2qB2/Qb3Q1r w - - 0 1 illegal: No possible last move
B3RBkb/2N3rb/1QKRp3/B1n4N/2r3qR/1r1n1q2/3Q1RQ1/1rN2rq1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 c5 g4 h5 d4 a5 f4 c4 b4 e6 g5 h3 g6+ Kg7 f5 h4 b6 a4 d6 c3 b7 c2 b5 a3 f6+ Kh6 g7 Kh7 f7 a2 d7 h2 d5 h3 Kd4 e3 d6 e2 Kc5 e1R b6 Nh6 g8N Ng4 Qd5 Qg5 d8R Nd7+ Kc6 Re2 b8R Re1 b7 Ra3 Bg2 Nc5 d7 Bg7 f8B Rb3 Na3 Rf1 Bd2 c1R Ba5 Nf2 Ne2 Rc4 Nb5 Nfd3 Nc7 Qg4 Nc1 Bb2 Rb1 a1R Qg5 Be5 Rb2 Rb1 Rf2 Bd4 Ra8 Bf6 b8Q Ba6 Qb6 Bg7 Ne7 Rg8 Ned5 Bh8 Nf4 Rg7 Nh5 Kg8 Qd5 Rcb4 Re8 Rc4 d8Q Bb7+ Kd6 Bc6 Ra6 Bb7 Q5g5 Be4 Qd7 Bh7 Ba8 Qe2 Qg2 Qg4 Rg1 h1Q Kc6 Qh2 Rh1 Qg1 Qd8 Ne1 Qd2 h2 Ra7 Ned3 Rb7 Ra4 Rbb8 Rab4 Rbd8 Rc4 Rd6 Qf4 Qf3 Qgg4 Rg1 h1Q Qg2 Qhh2 Rh1 Qg1 Rh4 Qff3+
5bb1/k1pn1N1n/r2B4/1KR5/2Q1nNr1/1qN1rn1Q/3R2R1/nQBB1N1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kd3 f5 Kc4 a5 e4 h3 g4 f3 b4 a4 b6 h2 b7 h4 g5 a3 b5 f2 b6 a2 e5 h3 e6+ Kd6 e7 f4 e8R f3 g6 Na6 b8B Bg7 b7 Rh4 Re2 Bd7 Ba7 Bg4 b8Q Qg5 Kb5 Be6 Qb3 Re4 Nd2 Qh6 Bc5+ Kd7 d6 Re3 d5 Bf8 g7 Nf6 g8Q Nh7 Qg2 Qg6 Qc4 Bg8 Rb1 a1N Rb2 Qf6 Qb7 Kd8 d7 Qe6 Bd6 Nb8 Qgg4 Ra6 Bg2 Nf6 Nf1 Nh7 Red2 Qf7 Ne2 Qe6 Rg1 h1R Rdc2 h2 Qh3 Qf7 Nc3 Qe6 Ng3 f1N Rd2 f2 Bf3 Qf7 Rg2 Rg1 Rbc2 h1Q Bd1 Nh2 Nf1 Qf3 Kc5 Qf7 Qb1 Nf3 Kb5 Qe6 Rh2 Rg5 Rg2 Rg4 Be5 Ke7 d8N Kd7 d6 Kc8 Nf7 Kb7 d7 Ka7 d8N Nd7 Bd6 Qd5+ Kb4 Qd3 Ne6 Qd5 Nf4 Qd3 Nh2 f1N Kb5 Ng3 Nf1 Ne4 Rb2 Qc2 Rd5 Bg7 Rc5 Bf8 Ra2 Qd3 Raf2 Qc2 Rd2 Qb3+
2R1rn2/1n6/1B2b1bq/1B1qB1NQ/5nBQ/3QrR1q/1bNR1p1k/1KN2n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 d4 Kd6 Kd2 a5 Kc2 h5 e4 c5 g4 f5 g5 a4 b6 a3 g6 h3 g7 f3 b7 f2 b5 h2 b6 a2 Bd2 h4 Bb5 f1N Ba5 f4 Ne2 h3 Na3 c4 Nc1 c3 Qd3 Ne7 g8B f3 Be6 f2 Bg4 Nd7 b8R Bg7 b7 Ng6 Bb6 Ndf8 Rb1 a1Q Rb2 Be6 Rc8 Nf4 Rg1 h1B Rg3 h2 Rf3 Rh3 b8B+ Ke7 d6+ Kf6 d5 Kg5 e5 Kh4 d7 Qb1+ Kb3 c2 Kc3 Bg2 d6 h1Q Ra2 Qf6 d8N Qh6 d7 Qa1+ Rb2 Qa2 Nf7 Qd5 Ng5 Rg3 d8Q Qh3 Ra2 Bh1 Kb2 Bf6 Ne2 c1N Kb1 Nb3 Rd2 Na5 Nc1 Nb7 Nc2 Bg2 Re3 Be4 Rf3 Bg6 Qe7 Bef5 e6 Bb2 Be5 Rb8 Qf6 Ra8 e7 Be6 e8Q Rb8 Re3 Rf3 Qef7 Kg3 Q6e7 Kh2 Qff5 Rg3 Rf3 Qh8 Qh7 Ra8 Qh4 Qh6 Rc3 Re8 Qf7 Bh7 Qfh5 Bg6 Rc8 Ng2 Rf4 Re3 Rf3+ Nf4
1b1k3r/3b1BQq/q3B2K/qN3R1R/3nQ2n/3nBnbp/2N1QR2/Q2r2N1 w - - 0 1 illegal: No possible last move, all moves rejected
1bnnn3/N1b5/q3NRb1/3q1rN1/kqQK4/BN1RR1pQ/2B3B1/1rqQ4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Ke3 c4 h5 c3 d6 c2 h6 f4+ Ke4 f2 b6 Kc6 b7 f3 d7 g3 h7 a4 e6 g4 e7 g2 e8B a3 Bd3 f1Q Nh3 g1Q Nd2 g3 Ng5 f2 Rh6+ Bd6 Rf6 a2 Nb3 Ne7 Ba3 c1Q Bc2 Kb5 d5 Ka4 b5 Rf8 h8Q Nbc6 b8Q Bc7 b6 Qa6 b7 f1N d6 Ne3 Qh3 N3f5 Bf7 Qgb6 Bd5 Rf7 Qa7 Rf8 b8N Qb4+ Qad4 Ng7 Qc4 Ne8 Kd3 Ra7 Bg2 Rb7 Rb1 a1B Rb2 Ne5+ Kd4 Nf7 Nc6 Rb8 Na7 Bb7 Bf3 Be4 Bh1 Bg6 Bg2 Qdc8 d8R Qf5 Rd7 Nc8 Re7 Rb5 d7 Nd8 Re3 Qf3 Rd6 Rff5 Rf6 Nb7 d8N Qh5 Nde6 Nd8 Ke4 Bb8 Rb1 Bae5 Rd3 Bec7 Kd4 Qf3 Na1+ Ka5 Rbb3 Ka4 Re3 Rb6 Rbd3+ Ka5 Re4 Qbd2 Qe2 Rb1 Re3 Qb4 Nb3+ Ka4 Qd1 Qd5+
KN2bQ1r/4rQB1/1k1n1b2/1N1R2Bn/3p2B1/q3q2R/2Q1QN2/n1qqrR2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 e5 Kc4 h5 Kd5 d3 f4 d6 c4 Kd7 g4 Kc7 b4 h3 b6+ Kb7 c5 d2 g5 h4 b5 a4 g6 h2 f6 a3 f5 e4 g7 a2 f7 h3 f6 e3 Qe2 d1N Nc3 Nh6 g8Q Be7 f8B Nf5 f7 Ra7 Bg7 Bd7 f8Q Qe8 Qgf7 Bf6 Bg2 Qe7 Bf3 Be8 Bg4 Nd7 Rb1 a1Q c6+ Ka8 c7 Kb7 c8R Qa3 Qc2 e2 Bg5 e1Q Rc5 Q7e3 Q8e7 Qec1 Qee2 Qf2 Ra1 Qfe3 Rb1 Ra4 Rb3 Re4 Rb1 Re7 Rb3 Ka8 Kc6 d5 b7+ Ka7 b8N d4 Rd5 Nd6 Rb1 Nf2 Rb3 Nfe4 Kc7 Nd2 b6+ Ka8 b7+ Ka7 Rb1 Nb3 Kc6 Na1 Kc7 Qcd2 Rf1 Qd1 Kc6 Qdc1 Kc7 Nc4 Kc8 Kb6 Nb5 Qd1 Nf3 Qdc1 Nd2 Qd1 Ne4 Nd6+ Kd8 Qdc1 Nf2 Qd1 Rhg1 h1Q Rg3 h2 Rh3 Ka5 Kc7 Qg1 Na6 h1R b8Q Qec1 Qd8 Qgg3 Nb8 Qge3 Qc6 Be5 Qcc2 Nf6+ Qd7 Nh5 Qf8 Bf6 Kc6 Nc8 Kb7 Nd6+ Ka8 Re4 Qdf7 Re7 Nd3 Rg1 Rf2 Re1 Rf1 Qc5 Nf2 Kb6 Qcd2 Qb4 Qc2 Qba3+
R2Q1nnR/2nqbBB1/B7/1RqQ1RQ1/Np5r/4N1Nb/r7/K1kb2br w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb2 e5 f4 b5 a4 h5 g4 c4 f6 h3 g5 b3 g6 e4 f7 h4 g7 b4 f5 e3 f6 h2 a5 h3 a6 e2 a7 e1R Nd2 Qe7 Ra5 c3+ Ka1 c2 Rb5 Qd7 Bb2 c1B Ne2 Rh4 Ng3 Be7 Qg4 Rd1 f8N Re1 f7 Rd1 Rg1 h1Q Qg5 h2 Ne6 Re1 Rg2 Qg1 f8R h1B Rgf2 Bf3 Nc5 Bd1 R2f5 Qf2 Bd3 Reh1 Ndf1 Be3 Na4 Qc2 Rd8 Bg1 Ne3 Qc5 Rdf8 Qdc6 Rd8+ Nd7 Re8 Nf8 Bc3 Nh6 g8B Qd7 Bf7 Ng8 Be2 Rb8 a8R b2+ Ka2 b1N Ka1 Na3 Bc4 Kc7 d6+ Kc6 Bd3 Rb6 Bf1 Ra6 Be2 Qb7 d7 Qc7 d8Q Qd7 d5+ Kd6 Rb7 Nb5 Bg7 Ra7 Qa5 Nc7 Ba6 Qcb5 Nc3 Kc5 Qa2 Qc4 d6+ Qd5 Qb3 Qe5 Rb6 Kd4 Rb5 Kd3 Qd5+ Qd4 Rd8 Kd2 Re8 Kc1 Rd8 Qe6 d7 Qc5 Re8 Qed6 d8Q Be6 Na4 Qd7 Re5 Bh3 Rf5 Bd6 Re6 Be7 Rh6 Rb7 Rh8 Rb6 Qb3 Rd6 Qa2 Rd2 Qd5 Ra2+
2b4B/nQNbkN1n/1B1q1rnq/Rp1Q2n1/2qbr3/3NR1KR/BQ6/7Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 e5 a4 b5 g4 c5 f4 h5 Kf2 c4 a5 b3 g5 b2 f6 c3 g6 e4 a6 c2 a7 h3 f7+ Ke7 g7 h2 d6+ Ke6 d7 e3+ Kg3 e2 f5+ Kf6 d5 e1N d6 Qe7 d8N Nd3 d7 Qc5 Ne2 Ke7 Nbc3 b1N Nf4 Nd2 Ra5 Qd6 Bb2 Ne5 Bc4 c1Q Ba2 Rh6 Nd3 Nf6 g8Q Bg7 f8R Nbc6 Qd5 Nh7 Nf7 Rf6 Qg1 Rb8 a8Q Na7 Qab7 Ndf3 Qgd4 Nfg5 Re1 h1B Re3 Rg6 Rh8 Rf6 Qh4 Bf3 Qh1 Bg4 Ba1 Nf8 Rh6 Nfh7 Bb2 Qc2 Ba1 Qb3 Bb2 Qc4 d8B+ Ke8 Bb6 h4+ Kh2 h3 Kg3 h2 Rh3 Re6 f6 Ng6+ Nfe5 Bd7 f7+ Ke7 Ba1 Re8 Bb2 Kf6 Ba1 R8e7 f8Q+ Rf7 Qfa8 Ke7 Qh8 Rf4 Nf7 Bd4 Na4 Bf5 Nac5 Ree4 Na6 Be6 Qhe5 Rf6 Nc7 Bc8 Qd1 h1Q Qf3 Qd1 Qh1 Qh5 Bc3 Qh6 Bb2 Rff4 Qh8 Bed7 Ba1 Bc5 Qb2 Rf6+ Qbe5+ Re6 Bb2 Rf4 Qc3 Ree4 Qa3 Rf5+ Be5 Bd4 Qb2 Rff4 Bh8 Rf6+
2R1Q1B1/2Qb2b1/1R1bnQ2/prNR2q1/q2N1n2/r2r1n1N/1n2B1B1/Bk2K3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 h5 b6 f3 g6 f2+ Kd2 c4 b7 h3 g7 h4 b5 f4 b6 h2 Qa4 f3 Bd3 f1R Qe8 c3+ Kc2 h3 Na3 f2 Ra2 Nd7 b8R Ne7 g8B Nc5 b7 Ne6 Be2 Rd1 Bb2 f1N Ba1 Nd2 Rb2 Bd7 Rc8 Nf3 b8N Rh5 Na6 Rd3 Nc5 Ng6 Rb3 Ngf4 Rb6+ Bc6 Kc1 Qg5 Nc2 a6 Rb4 Bg7 Rb6 Nd2 Kd1 Ra7 Ne3 c2+ Ke1 c1B Nc2 Ba3 Qg6 Ke7 Qe8+ Kf6 e5+ Kf5 d6 Bd7 d5 Nf3+ Kf2 Ned4 e6 Ra8 e7 Nde6 Nd4+ Ke5 Ncb3 Ke4 Kf1 Ke3 Nc5 Kd2 Kf2 Kc1 Kf1 Bb5 d7 Kb1 d8Q Bb4 Qc7 Bd7 Qg6 Ra7 e8B Ra8 Qf6 Ra7 Ncb3 Bd6 Bg6 a5 Be4 Rb7 Rc6 Rh4 Nc5 Rb5 Rb6 Rg4 Kf2 Rg3 Kf1 Ne5 Ke1 Re3 Bg2 Nf3+ Kf1 Ra3 Kf2 Red3 Ra6 Nd8 Qe7 Rd1 Qe8 Bg4 Bc4 Bdf8 d6 Nh4 d7 Bd6 Qc6 Rg3 B2d5 Ra3 Bf1 Be6 Qc7 Rd2+ Nge2 Rd1 Bdg2 Bg4 Rg1 h1Q Rc6 h2 Rb6 Nf3 Ndb3 Bdf8 Ng3 Be6 Nge4 Bf5 Be2 Be7 Qf7 Bd6 Qf6 Be6 Nc1 Rd5 Rd1 Bg4 Rd2 Qd1 N1b3 Qc2 Kf1 h1N Nf2 Rd4 Nh3 Nf2 Rd3 Nd1 Rd2 Nb2 Kf2 Re4 Rd5 Re3 Nd4 Qa4 Kf1 Red3 Kf2 Nf7 d8Q Bd7 Qe8 Nd8 Kf1 Nde6 Kf2 Ne5 Ke1 Nf3+
2R1bnB1/kN2N2Q/r1q1pKqb/1Br1B3/1n4q1/N1RQ3R/bb2B2Q/2r5 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 Kg5 Kb7 c4 h5 f4 a5 g4 e6+ f6 a4 b4 d3 b6 d2 b5 d4 c5 a3 f5 a2 Na3 h3 Bb2 d3 Nf3 h4 Rc1 a1B Ne5 h2 Nec4 Nd7 c6+ Kb8 b7 h3 c7+ Ka7 b8R Ne7 f7 Nf6 b6+ Ka6 b7 Rh7 Nd6 Bg7 f8N Nc6 Ng6 Bd7 c8B Nb4 Ne7 Be8 Bd7 Qa5 Qb3 d1R Rbc8 Rh6 R1c2 Rc1 b8Q Qd5 Qc3 Qg2 Nb7 Kb6 Qf4 d2 Bdb5 Nd7 f6 d1Q f7 Ra6 f8Q Ka7 Qg8 Nf8 Qcg3 Rh4 Be5 Bb2 R2c3 Bh6+ Kf6 Qdf3 g5 Rg4 g6 Rg5 Bc7 Rc5 g7 Qd3 Qgf3 Qg4 Qh7 Qb1 g8B Qc2 Rg1 h1B Rg3 h2 Be5 Qb1 Qd1 Bd5 Rh3 h1Q Qh2 Ba2 Bfe2 Qc6 Qd5 Qbe4 Qd3 Qeg6+
4Br1Q/br2KBr1/2pQR3/n1q1R3/1bqq1kN1/1bn1R1b1/5NQB/2NQ4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 h4 a5 e4 g5 b4 f5 b6 c6 b7 g3+ Kf3 a4 h5 g2 e5+ Kd7 b5 a3 d6 Ke6 b6 a2 d7 Nf6 h6 Qc7 d8R Nbd7 b8Q Be7 b7 Ra6 h7 Qa5 Ne2 g1Q Nd2 Qc5 Rh6 Rb6 Re8 Rg8 h8Q Rg7 Ne4 Kd5 Rb1 a1B Nf2 Ne4 e6 Nc3 Rb3 Rb4 Be3 Nb6 Nc1 Nc4 Qc2 Bf8 e7 Na5 Re6 Bd7 Qd8 Rb6 b8Q Rb7 Bd2 Bb2 Rb5 Ba3 Qd1 Bb4 Qdc7 Bc8 Qh1 Bd7 Qg2 Bc8 Re3 Be6 Bd3 Bg8 Be4+ Ke6 d5+ Kf6 d6 Bb3 Bd5 Qd4 Ne4+ Ke5 d7+ Bd6 d8N Qc5 Rd3 Qgd4 Qcc8 Bc7 Bf7 Bd6 Re3 g4+ Kf2 g3+ Kf3 Bc7 Be1 Bd6 Bf2 Bc7 Bg1 Bd6 Bh2 Bc7 Qb2 g2 Qd7 g1B Qg2 Bf2 Qa8 Bb6 Qac8 Bg3 Nf2+ Kf6 Qd6+ Kg5 Bg8 Ba7 Nf7+ Kh4 Nh6 Kh5 Rd8 Kg5 e8B Be7 Nhg4 Bf8 Qgf1 Be7 Bgf7 Bf8 Kg2 f3+ Kh3 f4 Rd7 Kf5 Rde7+ Kg5 R7e6 Be7 Nh1 f2 Qg2 f1Q Nhf2 f3 Qcb8 Qfc4 Qc8 Qf5 Rbe5 Kf4 Qcb8 Bf8 Qbd8 Qdc5 Qh4 Qfe4 Qh8 Qed4 Bg1 Bh2 Kh4 Bg3+ Kh5 Be7 Bh2 Bf8 Nh1 f2 Kh6 f1R Nhf2 Rh7+ Kg6 Rg7+ Kf6 Q5b5 Qb8 Bb4 Qd6 Qbc5 Bd7 Rb8 Ke7 Rf8 Be8 Rh1 Bg1 Rhh7 Bh2 Ba4 Kd8 Bb3 Bg8 Rb7 Bf7 Rb6 Kd7 Rg7 Ke7 Rb7+
3BQ2q/r4Kn1/1pN2b1Q/2RrN1b1/B1n3Q1/3R2rQ/1RBNn1b1/1qk3r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 g4 c5 f4 h5 a4 e5 f6 h3 a5 b3 d6 b2 d7 h2 f7 b6 d5 h4 f5 h3 a6 Nh6 a7 Ng8 f6 Bd6 f8Q Ne7 g5 Nbc6 f7 Nf5 g6 Bb7 g7 Rg8 Nd2+ Ke3 Ra2 b1Q Qg4 e4 Ngf3 Be5 d6 Bf6 Kd5 c4 Ke6 c3 Rb2 c2 Bd3 Ne5 Qe8 Nc4 f8Q Bg5 Rf1 h1R Ne5 h2 Kf7 Rg1 Qh3+ Rg3 Rf4 h1R Rf2 Rh8 g8Q Rg1 Qfh6 Ng7 Rf5 Qb8 d8R Bd5+ Qhe6 Rh5 d7 Bc6 Qh6 Bb7 Ra2 Bc6 Bb2 c1N Bc2 Ne2 Ba3 Bb7 Be7 Bc6 Ba4 Bb7 Rb2 Qc8 Nef3 Kd3 Bf6 e3 Rc5 Qb8 Be7 Kc3 Ne5 Bg2 Rdc8 Bf6 d8N Rf5 Ndc6 Rfg5 Nef3 Rd5 Rd8 Qc8 Nfe5 Bg5 Rb3+ Kc2 Rb2+ Kc1 Rd7 Rb8 a8B Rb7 Rd6 Ra7 Bb7 Qb8 Bc8 Bf6 Bf5 Qd8 Bfc2 Bg5 Qgh7 Qa8 Qe4 Bf6 Qed7 Qh8 Qeg4 Nc3 Bcb3 e2 Qge6 Rdd3 Qeg4 Bg5 Bc2 Rd4 Rf6 Rd5 Rf3 Bf6 Re3 Bg5 Bd8 Bf6 Ndf3 e1B Rd3+ Bd2 Qe7 Be3 Nd2 Ne2 Qed7 Beg5 Qe7 Ra6 Qe8 Ra7+
1q1kb2N/4pBBQ/Rrr5/3n1Q2/3QN1qK/2b2r2/nr2RR2/q1BnN2R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 h5 d4 a5 f4 c5 Kf2 a4 b4 a3 b6 h3 Kg3 a2 f5 c4 d6 c3 d7+ Kf7 f6 e3 g5 h2 d5 e2 b5 e1N d6 c2 b7 Ra3+ Qd3 Rb3 b6 Rb2 Nd2 Na6 b8R Bg7 b7 Ng2 Ne4 Rh6 Nf3 Nb4 Ne1 Ne3 Kh4 Nd1 g6+ Ke6 f7 Nf6 f8Q Nfd5 Qd4 Qb6 d8N+ Kd7 Bc4 Qa7 Ra8 Qb8 Rb1 a1Q Ra6 Na2 Qf5+ Ke8 Nf7 Bd7 Nh8 Kd8 Bb3 Be8 d7 Be5 g7 Rb6 g8Q Bg7 Bg5 c1R Qgh7 Rcc6 Bc1 Be5 Rf1 Bg7 Rf2 h1Q+ Qh3 Qf3 Q3f5 Nf6 Bf7 Nd5 Qd2 Bc3 Qd4 Qe5 b8B Qe2 Kh3 h4 Bd6 Qf4 Be5 Qc4 Bf6 Qb8 Bg7 Qb4 Kg4 h3 Kh4 h2 Re2 Kc7 d8R h1R+ Rh2 Rf1 Re2 Rf3 Rd6 Nf4 Rg6 Nd5 Rgg2 Kd8 Rh2 Rb3 Rbb2 Qa4 Rh1 Qc4 Rbd2 Rb2 Rf2 Qf1 Rc2 Qg2 Rce2 Qg4+
2B4Q/QpR1bNBN/Kb4n1/1Q5r/1r5k/2b2rR1/1R1n1Nb1/n2NBqq1 w - - 0 1 illegal: Other
1NbNnr2/2n2nq1/1R2Q3/B2n1BnB/2kb1QR1/2N3KQ/p4R2/3rbnN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 a5 d4 h5 g4 f5 b6 c5 g5 h3 b5 f3 b7 c4 b6 f4 g6 c3 g7 h4 Be2 a4 Nd2 a3 Rb1 a2 Ra1 h2 Bb2 c2 Bb5 c1B Qe1 h3 Nb1 Qg5 Bd7 Bd2 Bc3 Nf6 g8R Bg7 Bf5 Na6 b8N Ne8 b7 Nac7 Ba5 Bf6 Qe3 Qg7 Nc3 Rh4 Rb1 Be1+ Kf1 f2 e5+ Ke7 e6 Kd6 Ke2 f1N Kf3 Rh5 Qe4 Ne3 e7 Rh8 Rf8 Ra6 Rf7 Rf8 Rb2 Rc6 Rg2 Rb6 Rg4 Rb1 Qd3 Rd1 Qe2 Bd2 Kf2 f3 Kg3 f2 Qf3 Be1 Qe4 Be5+ Qf4 Nf6 e8B Rh8 Rf8 Rg8 Bh5 Nfe8 Rf7 Rf8 Rf6+ Ke7 Rb6 f1N+ Kf3 Bf6 Qe4+ Be5 d6+ Kf6 d5 Bd4 Qd3 Ke5 d7 Nc4 d8N Nfe3 d6 Ned5 d7 Ncd6 Rb2 Nf7 Rf2 Kd6 Qe2 Kc5 Qe6 Kc4 Kg3 Qg5 Nf3 Qg6 Rf1 Qg7 Ng1 h1N+ Kf3 h2 Rb2 Rb1 Rb6 Nf2 Kg3 Nh3+ Rf2 Nhg5 Nbc6 Ra1 b8Q Na8 Qf4 Nac7 Nb8 Rb1 Nb7 Ra1 d8Q Rd1 Qdd7 h1N+ Kh2 Ng3 Nd8 N3e4 Kg2 Nd2 Kg3 Qg8 Qee3 Qh7 Qde6 Qg7 Qef3 Qh7 Qg2 Qg7 Qh3 Nf1+
2b2qnn/K1RBB1N1/2Rr1Q2/RNn4N/bk2n3/1pb5/1B5Q/Q1n1rQn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kd4 b5 g4 h5 f4 c6 a4 h3 g5 e6 g6 b3 a5 b2 f6 b4 a6 b3 f5 h2 g7 h4 f7 h3 a7 Nd7 f6 Rh6 Bb5 Be7 f8N Bb7 f7 Nc5 Ra6 Bc8 Na3 b1N Ne2 Nc3 Bb2 N3e4 Qa1 Ng5 Rc1 h1B Nf4 h2 Nh5 e5+ Kc4 e4 d4 e3 Ne6 e2 f8Q e1N Qf1 Rb8 a8R Bf6 Kb4 Qe8 Ka5 Qf8 Ba4 Nef3 Nb5+ Kd7 d6 Nf7 d5 Nh8 Rc3 Ng1 Rc4 Rb7 Rc3 Rc7 Kb6 Ra7 Rc1 Bc3 Ra5 Rc7 R8a7 Bg2 Rb7 h1N Ka7 Nf2 Rc2 Nfe4 Rc1 Ke8 d7+ Ke7 d8B+ Kd7 Be7 Bh3 Ned4 Rd6 Rc2 Be6 Nf5 Bf7 Rc1 Be8 Rc2 Nd3 Rc1 c5 Rc2 c4 Rc1 Re6 d6 Kc6 d7 Rd6 d8Q Kc5 Rc2 Rc6 Rc7 Kb4 Rc1 Ndc5 Rc2 Ngf6 g8Q Rd1 Qgd5 Rd6 Qd2 Re1 Nfg7 Ng8 Qdf4 Bf6 Qh2 c3 Rc1 c2 Rc6 Rd5 Qdd6 Bc3 Qdf6 Rd3 Rd1 Rd8 Rd7 c1N Rdc7 Rd6 Rca6 Bd2 Nd4 Bc6 Bb5 B6b7 Bd7 Bc6 Rb6+ Bb5 Rbc6 Ba4 Nb5 Bc3
Qb1B3K/1B3pRB/2R2Q1N/1N1kb1R1/1n3QN1/2bb2b1/2Qq3n/1nrb2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 a5 h4 g5 b4 c5 b6 c4 b7 a4 h5 a3 h6 g3+ Kf3 g2 b5 a2 e5+ Kd7 Kg4 c3 Kf5 c2 e6+ Kd6 b6 f3 h7 g4 Bg5 c1N Nc3 g3 Rh5 f2 Bd3 f1B Nf3 g1B Nh4 g2 Qc2 Nd7 b8Q+ Qc7 e7 Ngf6 e8B Nb3 b7 Be7 Rc1 Ra5 Qa8 a1B b8Q Bd8 Nb5+ Ke7 Be4 Qb6 Qf4 Rg8 h8R Bd3 R8h7 Bh2 Rg7 Ndc5+ Ke5 g1B Bh7 Ra7 Bc6 Bf2 Bb7 Bfg3 d6+ Kd7 Nf5 Nd2 Bh4 Bc3 Nh6 Na6 Rf5 Nb1 Rfg5 Bd2 d5 Bc7 Qb2 Qg1 Rc6 Nb4 Qb3 Qg2 Qc2 Bf1 Kf5 Bb8 Ke5 Ra1 Kf5 Ke8+ d7+ Kf8 d6 Bd3+ Ke5 Bde1 d8N Qd2 Rc7 Ke8 Nc6 Bg4 d7+ Kf8 Qa6 Bd1 d8Q+ Ne8 Qd4 Nf6 Qa8 Ke8 Ne7 Kf8 Nef5 Ke8 Qb6 Kd8 Ne3 Ng4+ Kd4 Ke8 Rc6 Ke7 Qba6 Bg1 Qb6 Nh2 Qba6 Rc8 Qb6 Rc7 Ke5 Kd7 Kf6 Rc8 Neg4 Bd4+ Qe5 Bc3 Qe3 Bef2 Qf4 Bfd4 Rg8 Rc7 Kg7 Rc8 Qef6 Bde5 Kh8 Rc7 Rc4 Rc6 R8g7 Rc7 Qb6 Ke7 Qbf2 Ke6 Rc6+ Kd5 Rf5 Na3 Bd8 Rc1 Rg5 Nb1 Ba6 Ra7 Bb7 Ra5 Nd6 Rc5 Nb5 Rc4 Qb6 Re4 Qbf2 Re1 Qf6 Rf1 Q2f4 Rg1
nQ5B/2n1N2K/2b1rNB1/5nR1/pR1br2B/1NQ2bqn/kb3n2/1R1Q3N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 f5+ Ke5 a5 g6 a4 d6 f3 b6 f2 d7 f4 Kf5 f3 g7 h3 Kg6 h4 b7 h2 b5 h3 b6 Ne7+ Kg5 Qc7 d8B Ra6 g8N Bd7 d5 Rh4 d6 Nc8 Kg6 Bg7 Ne7 Re4 Bb2 Bc6 d7 Bd4 Kh7 Qg3 Nd2+ Kb4 e3 c4 Rb1 c3 Nb3 c2 Ne2 c1B Rg1 h1N Qd3 h2 Qc3+ Kb5 Bh3 f1B Bf5 f2 Bg6 Bg2 Ba1 f1N Bb2 Re6 e4 Nf2 e5 h1N Ba1 Nh3 Bb2 Qf3 Ng3 N1f2 Nh1 Qg3 Ba1 Bgf3 Rg2 Rf6 e6 Bb2 Rg1 Ra7 Rg2 Na6 b8Q Nc7 b7 Nb6 Rg1 Qe5 Rg5 Ra6 Nf5 Qd6 e7 Qg3 e8N Re6 Nf6 Re4 Be7 Nba8 d8Q Ne3 Qd5+ Bc5 Qd1 Bd4 Bd8 Rb6 Ne7+ Nf5 Qa7 Be2 b8R Bf3 Rb7 Nf4 Qb8 N4h3 Qe3 Kb4 Qee1+ Ka3 Qc3 Ra6 Rb4 Rb6 Nd7 Nf4 Rg4 N4h3 Qe3 Bb5 Ng8 Rbe6 Bh4 Ba7 Rg5 Ka2 Ne7 Ba3 Bh8 Bd4 Qc3 Bc6 Nf6 Bb2
2nrNb1r/K2rB1Rn/2kBrr2/3qpbqN/4Q1Q1/RB3Q2/r7/1R2B2N w - - 0 1 illegal: No possible last move
QNb1QK2/1B1b4/1k1bn1p1/2N1R2b/b1Qq1b1B/r4N2/4r1R1/R2qBn1B w - - 0 1 illegal: No possible last move
BnNb4/1K2nRQQ/3NpR2/1n2NQb1/5BrB/1k4r1/5Nn1/3bqnRb w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 h5 Kd4 a5 Kc5 e3 d4 a4 b4 e2 g4 e1B f4 h3 g5 h4 g6+ Kf6 b6 a3 b7 h2 f5 e6+ d6 h3 b5 a2 d5 Ke5 g7 c6 b6 Bd7 f6 Ra4 f7 Qe8 Qg4 Rh5 Nc3 Rf5 Nb5 Ne7 g8N Bd2 Bg2 Qc8 Qg7+ Rf6 Rb1 a1N Rb2 Bh6 Rf2 Bg5 Rf1 Be8 d7 Rg4 d8Q Nc2 d6 Ne1 d7 Rg3 Be4 Ng2 Nd6 Qc7 Qh7 Rg6 Rf6 Bfh6 f8N Bg7 Rf7 B7f6 Qc8 Rg7 d8B Rg6 Qd7 Qc8 Kc4 c5 Kb5 Kd4 Bf4 Kc3 Bc6 Rg7 Ng6 c4 Ne5 Kb3 Qf5 c3 Be4 Na6 b8Q c2 b7 c1N Kb6 Qc3 Qa7 Ne2 b8R Qe1 Ba8 Nc3 Kb7 Nb5 Rc8 Nb8 Qa1 Ng6 Ne7 Rg4 Rc7 Rg8 Nec8 Ne7 Rf8 Bh5 Rf7 Rg6 Rc2 Rg3 Rf2 Bd1 Qd4 Bh4 Qde4 R6g4 Qh7 Bfg5 Rf6 Nf5 Qdg7 Ne7 Qef5 Nc3 Ne2 Nb5 Rg1 h1N Nc3 h2 Nce4 Rc3 Bc7 Ng3 Bd8 h1B Rf3 Nf1 Rf7 Bf2 Rf6 Bb6 Nf2 Nd5 Be7 Bd8 Rf7 Bh6 Bh4 Bhg5 Rf6 Ne7 Rf7 Ka4 Qc2+ Kb4 Be3 Bh6 R3f6 Bg5 Bf4 Rcg3 Qcf5 Kb3
4rqR1/rb1Qb3/1QRQ2b1/B7/1rn1Nn1n/2nQ1RB1/3bpNN1/2k3KB w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 f4 Kd6 Kf2 e5 b4 h5 g4 c5 g5 a5 f5 h3 b6 c4 b7 h2 g6 h4 g7 h3 f6 c3 b5 c2 b6 e3+ Ke2 e4 f7 a4 Ke1 a3 Qd3 e2 Kf2 e1N Nf3 a2 Ng1 Nf3 Bd2 c1N Ba5 Nd7 Nc3 Ne2 Bg2 Be7 f8N Ra7 Rc1 a1B Ng6 Nf4 Nh4 Ngf6 g8R e3+ Kf1 Ne4 b8Q+ Qc7 b7 Nb6 Rc2 Bf5 Qf8 Bh7 b8B Bg6 Rf2 Nc4 Qg7 Kd7 d6 Kc6 d5+ Kc5 d7 Qc8 d6 Qf8 d8Q Bb2 d7 Bc1 Rc2 Bd2 Qf7 Ne2 Bg3 Nf4 Na2 Kb5 Qb6+ Ka4 d8Q Nc3 Q8d6 e2+ Kf2 Be4 Qfe6 Bg6 Qdd7+ Ka3 Rc1 Bb4 Qed6 Kb2 Rf1 Ng5 Bd5 Nf3 Ng2 Nh4 Be4 Rh5 Rc1 Re5 Bb7 Re8 Ba8 Nb5 Nc3 Ba3 Ne4 Bab4 Nf3 Nc3 Rhf1 h1R Nfg5 h2 Nh3 Rg1 Bd5 h1B Ne3 Bf3 Ng2 Bg4 Ba8 Be6 Bb7 Bd5 Ba8 Rh1 Bb7 Rh2 Kg1 Bc6 Ba8 Bd5 Rf3 Bb7 Nhf2 Rh3 Ra1 Rh2 Ra3 Kc1 Rb3 Ba3 Rb5 Rh3 Rc5 Bb4 Rc6 Bc5 Qe5 Be7 Qed4 Nf5 Q4d6 Rh4 Re3 Rg4 Rf3 Nh4 Ng5 Nh5 Rc7 Na3 Rf4 Ba6 Ne3 Bd8 Bh1 Be7 Ng2 Bb7 Rf3 Rb4 Rc6 Nc4 Nge4 Nf4
N2n1q2/B1B1NqR1/Q1bNBKR1/b1rN1n2/1q3pR1/bk1b4/5qQ1/5Q1r w - - 0 1 illegal: No possible last move, all moves rejected
1BQNR3/2NQQ3/5bqK/1p3B1N/4qRBr/q1rn4/2bkn3/bq2b1RQ w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 b5 d4 h5 g4 c5 a4 c4 d6 e6 d5 b3 d7 c3 d6 b2 a5 c2 a6 h3 a7 h4 Bd3 h2 Nc3 b1Q Nh3 Nh6 Rf1 Qb6 d8R h1Q d7 Bc5 Re8 Be7 d8N Na6 f3 Rb8 a8Q Nc5 Be4 Qb3 Qd7 Qa3 Bd2 c1B g5+ Kg7 g6 Kf6 g7 Bb2 Rab1 Ba1 g8B Bb7 Be1 Rc8 Bg3 Qba6 Bc2 Be4 Bf7 Bd3 Bh5 Rc7 Bg4 e5+ Ke3 e4 Kf4 e3 Nd5+ Kg7 f6+ Kg6 f7 e2 f8Q e1B Rc1 Bef6 Qfe7 Nf5 Qac6 Rc8 Nc7 Nd4 Rg1 Be4 Bd3 Kh6 Rc4 Qb6 Bb1 Bc2 Qce4 Ne2+ Kf5 Nd3 Nf4 h3 Nh5 h2 f4 Qf3 Qec6 Qfe3 Qh1 Qc6 Rb4 Bfb2 Rd4 Qg2 Kf6 Qee4 f5 Bbc3 Kf7 Bcb2 f6 Kg5 Kg7 Bbc3 Nf4 Rh4 Nh5 Bcb2 Na6 Rc6 Bb8 Rc3 Nc7 Qg3 Qc8 Qgd6 Qed7 Qde6 f7 Qb6 Ng3 Kf4 f8Q+ Ke3 Nh5 Kd2 Qfe7 Qbd6 Qf3 Qg3 Kh6 h1Q Qg2 Rb3 Ra4 Bf6 Rb4 Rc3 Rc4 Qe6 Rf4 Qeb3 Qh3 Qe4 Qh1 Qbb2 Ba2 Qbb4 Bae6 Qb1 Bef5 Qgg2 Bh3 Qg8 Bhg4 Qg6+
n1BQR2r/3q1qBB/NR2Nnpq/1QR1Q2q/1NBr4/7r/4rb2/k4K1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 b4 Ke7 h4 Kd6 c4 Ke5 e4 d5 c5 f5 h6 a5 h7 d3 c6 Kd4 h5 f3 b6 a4 c7 a3 b5 a2 e5 f4 e6 Nd7 h6 Bb7 c8B Bc5 e7 Ngf6 e8B Ra3 Bg6 d2+ Kf2 Ba8 b7 Nb6 b8N Qd7 Na6 Rd3 Qb3 d1R Nc3 Bb7 Rh5 Na8 Rb1 a1R b6 Ra2+ Be2 R1d2 Ke1 f2+ Kf1 Rh3 Bc4 Re2 Bb2 Ra4 Qb5 Rb4 Bf7 g6 Bg8 Bc6 b7 Ra4 Bb3 Rc4 b8R Kd3 Bb7 d4 Na2 Bh1 N2b4+ Kd2 Re5 d3 Bc8 Rd4 Bbc4 Bb6 Ba1 Ba7 Rb3 Kc1 Nf3 d2 Rc5 Bb6 Re3 Kb1 Re8 Ba7 Rb6 d1Q+ Ne1 Qd2 Nf3 Qe3 Ng5 Qf3 Bc3 Qh5 Be1 Kb2 Ne6 Ka1 Bc3+ Rb2 Bd3 Ng4 Re5 Rc4 Nc6 Qf5 Qb3 Rh4 Rb8 Be3 Rb6 Ra4 Bf7 Rg8 h8Q Qe7 h7 Qd7 Qf6 Ra3 h8Q Qh5 Rc5 Rf8 Qhg7 Rh8 Qd8 Rh3 Qgf6 Ra4 Qb5 Re4 Be5 Rd4 Bg8 Re2 Bh7 Ra2 Rc2 Rb2 Ke2 f3+ Kd1 Ra2 Qh4 f1Q+ Qe1 f2 Bg7 Qg2 Rc5 f1Q Ncb4 Qff7 Qe2 Nf6 Ke1 Qgg5 Kf1 Qgh6 Bc4 Bf2 Qe5 Re2
Br3QKQ/N3R1b1/1B1k1N1n/r1p4q/2RqBq2/Rn6/2r2p1N/1bQR2b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 a5 Ke4 h5 Ke5 f5 g4 a4 b4 h3 e4 h2 d4 f3 b6 f4 b7 c6 b5 f2 b6 a3 g5 a2 g6 f3 d6+ Kd7 g7 h4 d5 h3 Be3 Rh6 Qc1 Be7 Bg2 f1R Nc3 f2 Nf3 Qe8 Nb5 Qg6 Na7 Rd1 Re1 h1Q Nh2 Nf6 g8B Qe8 Bh7 Na6 b8Q Rg6 b7 Qf7 Bb6 Rg8 Kf5 Rd4 e5 Rc4 Re3 Rc2 e6+ Ke8 Rc3 Qd1 Rc4 Nc5 d7+ Kf8 d6 Qd4 Bd5 Nb3 Be4 c5 d8R+ Qe8 d7 Ng4 Bh1 Bd6 e7+ Kf7 Be4 Qf8 e8N Ke7+ Nf6 Qf7 Bg6 Nh6+ Kg5 Bc7 Re8+ Kd6 Re7 Rh8 d8Q+ Bd7 Qg8 Bf5 Qbf8 Rb8 Rb1 a1B Bh5 Ra8 b8R Bh7 Bhf3 Bc3 Nc6 Ra5 Na7 Bf5 Ra8 Bb2 Nf1 h2 Ra1 h1Q Nh2 Bc3 Ra3 Bh7 Rb8 Ba1 Ba8 Bd3 Bfe4 Qf3 Rbe8 Qfd5+ Kg6 Qf4 Qgg7 Rg8 Kh7 Qh5 Qh8 Bc3 Qf7 Bb2 Rb8 Ba1 Rb7 Rb8 Qfg8 Re2 Qgg7 Bb1 Qgf8 Rc2 Rg7+ Ke6 Rg1 Be5 Re7+ Kd6 Rh1 Qc3 Nd5 Qfg4 Nf3 Bh2 Rd1 Bg1 Nh2 Qgh4 Nc6 Qd3 Na7 Bg7 Nf6 Q4g5 Qc8 Qd4 Qcf8 Nf7+ Kg8 Qg3 Nhg4 Qf4 Nh2 Nh6+
r3q1BR/2k3N1/1p4QB/3brN2/2q2R1R/1pr3n1/B1nbnQ2/1Nb1B1QK w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 f4 e5 Kf2 c5 a4 h5 g4 e4 Kg2 b6 g5 c4 a5 c3 f6 c2 d6 e3 f7 e2 a6 e1R d5 Re7 a7 Re3 g6 Qc7 f5 Ra3 f6 Rc3 g7 Nc6 Bc4 Nce7 Bh6 c1B Ne2 Qc6 Ba2 b3 Ng3 Bb7 Qg1 Qc4 Nf5 h3+ Kh2 Kd8 d7 Kc7 d8R h4 Rb8 Nc6 d6+ Kd7 Bd2 Nd4 Be1 Nc2 Qg6 Kc6 d7 Rh5 d8N+ Kc7 Kg1 Bfa3 f8Q Bd2 f7 Nf6 g8B Bd5 Rh2 Ne4 Kh1 Bac1 Ne6+ Kc6 Neg7+ Kc7 Rf2 h2 Qg1 Rg5 Rf4 Rh5 Qe8 Rg5 f8B Rh5 Kg2 h1N Qg6 Nhg3 Rd8 Ne2 Kh1 h3 Qf2 Rb8 a8Q h2 Qa3 Ra8 Qac5+ Bc6 Qfg1 Rg5 Qcf2 Bd5 Bc5 Rh5 Be3 Rg5 Rh4 Rh5 Bh6 Rg5 Ng3 Re5 N3f5 Re7 Bh7 Ncd4 Kg2 Ra3 Rh8 Ba8 Qe3 Nc2 Bf2 Bb2 Bg8 Bd5 Qd4 Ra6 Na3 Ra8 Rf1 Bbc1 Be1 Ree8 Nb1 Re6 Rff4 Ree8 Qdf2 Re7 Rhg4 Re5 Qe6 h1Q+ Kf1 Qh5 Kg2 Nb4 Rh4 Qe8 Qg6 Nc2 Kh1 N4g3+
5B2/5N1B/R5b1/N1R1QnQq/3Qr1B1/r1bK2b1/kNNp2p1/nn2nRn1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 c4 g5 b4 d5 h4 a5 f4 e5 h5 a4 f6 Ke6 b6 a3 h6 a2 f7 e4 f5+ Kd6 b7 e3 b5 Kc5 h7 Kb4 b6 g3 f6 g4 c5 g2 c6 g3 c7 Ra3 Nf3 g1B Nbd2 g2 Ne1 Nh6 Nc4 Nf5 Nc2+ Kb3 Kd3 e2 Rh5 Qe8 Nb2 Bd6 f8R Bg3 f7 Nd7 b8Q Rg8 h8N Rg4 b7 Re4 Bh6 e1N+ Kd2 Ne5 Bd3 Be6 c8B Be3+ Ke2 N5f3 Qe5 Qb5 b8N Bd2+ Be3 Qc5 Nc6 Bc3 Bd7 Qb5 Ra8 Qa5 f8Q Bf7 Qh6 Bg6 Qg5 Qb5 Rc1 a1N Ra6 Ka2 Nf7 Qa5 Qd2 Qc5 Rh1 Qb5 Rf1 Ng1+ Kd1 Qc5 Na5 Qb5 Qgf6 Qc5 Bh6 Qb5 Qdg5 Qc5 Be2 d3 Bf8 d4 Bg4 d2 Bb5 Qc6 Bd3 Qe8 Bc5 Qh8 Bf8 Qh5 Ne3 Nh3 Ke2 d1N Qb6 Bb4 Rc5 Nc3+ Kd2 Ng1 Bc2 d3 Qbd6 Bh7 Qdd4 Bg6 Ba4 Qh4 Nc2 Qh5 Bc6 Rf4 Be4 Nb1+ Kc1 d2+ Kd1 Nh3 Ke2 Bc3 Bd3 Nf3 Be4 Nhg1+ Kd3 Ne1+ Kc4 Nh6 Rf6 Nef3 Rc7 Bf5 Rc5 Bh7 Bg6 Re4 Kd3 Nf5 Ra6 Bg8 Nd8 Bf7 Bh7 Bg6 Nf7 Ne1+
2N1RQ2/1b3rr1/2rN2B1/1Np2n2/Q3b1Np/bQ3R2/B2r1Rn1/Br2k1Kq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 b5 h3 g6 h4 d7 h2 b7 a4 b6 f3 e6 f4 g7 a3 e7 a2 e8B Nf6 g8N Ra4 Na3 Nd5 Nh3 Nc6 b8Q Ne3 b7 Bg7 Bg6 Rh6 Ne7 Ng2 Bc4 Ra7 Rf1 h1B Qa4 Qa5 d8N Qc3 Rb1 a1R Nf7 Ra2 Rb3 Rb2 Kg1 f2+ Kh2 f3 Nd6 Bf5 Qf8 Be4 Nec8 Ne7 b8Q Nf5 d3 Rc2 Bb2 Ke3 d4 Kd2 d5 Bh8 Ba1 Rg7 Nab5 Qe3 Rfb1 f1R R1b2 Ke1 Nf2 Rd2 Ng4 f2 Ra3 Rg1 Ba2 f1R Rc2 Rf7 Qb7 Bb2 Rac3 Rd3 Rf2 Ba3 Rb3 Rd2 Rd3 Qd4 Rdf3 Qb4 Nc4 Qa5 d6 Qc3 d7 Qb3 d8R Qd3 Bh5 Rc6 Re8 Nge3 Nf6 Ra6 Nc3 Bd5 Rf4 Rgg7 Qbb5 Bb7 Ng4 Bhe4 N4d6 Ng2 Bg6 Rc6 Qbb3 Qf3 Ncb5 Rg1 Rf1+ Ke2 Rc1 Rgd1 Rc3 Ke1 Kg1 Qh3 Rf2 Rb1 Rcf3 Qh1+
rR1R1N2/2Qr3N/n2p2K1/4k3/2Bbnr1Q/r1nbprB1/3RB1N1/q1N3Q1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 e5 Kh5 a5 b4 h6 c4 e4 g4 d3 f4 h3 b6 d6 b7 a4 b5 a3 g5+ Kg7 b6 h2 f6+ Kf7 c5 Ke6 f7 a2 f5+ Ke5 c6 d2 f6 Na6 b8R Qd7 b7 Nc7 g6 Ne8 c7 Qb5 g7 Rh7 Na3 Qa6 Be2 Bf5 c8Q Nc7 Nc2 e3 Ne1 Qa7 Ng2 Bd3 Qh3 Na6 Qh4 Qd4 Rb1 a1R Rd8 Ra3 b8Q Qa1 Qc7 Be7 Qde1 d1N f8N Nc3 f7 Bf6 Rb4 Ne7 g8B Nf5 Kg6 h5 Rb7 Bg7 Bb2 Ng3+ Kg5 Ne4+ Kg6 Bf6 Rbb8 Bg7 Bf3 Bf6 Ne2 Bg7 Rf1 h1R Rf2 Rh3 Qg1 Bh8 Bg4 Rf3 Nc1 Bf6 Rd2 Bh8 Qhh1 h4 Qh3 Rf4 Be2 Bf6 Qg4 h3 Qg3 h2 Qh4 Rh5 Nh7 h1R f8N Rh3 Be6 Rhf3 Bc4 Bg7 Bf7 Rhf5 Bc4 Rf7 Qc6 Kd4 Nf6 Rd7 Qc8 Rf5 N6h7 Bf6 Bb5 Kd5 Qc7 Nd1 Be5 Ndc3 Bh2 R5f4 Bg3 Bd4 Bc4+ Ke5
Q1nB2Qn/p1bR1br1/KNQ4R/7B/5b1b/B1Rrb2N/1np3Q1/1q2k1N1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 h4 Kd6 b4 Ke5 f4+ Kd4 h5 e5 b6 c5 f5 g5 h6 e3 d6 e4 b5 g3 d7 g2 h7 g4 b7 c4 b6 c3 f6 g3 f7 c2 Ra3 Qg5 d8R+ Nd7 b8N Ne7 b7 Rg8 h8Q+ Rg7 Qh3 Ng6 Rc3 Nh8 Ba3 Bd6 f8Q Nb6 Qg8 Be6 Nd7 Bf4 b8Q Nc8 Nb6+ Qd5 d3 Bf7 Nd2 Qd6 Qg4 Qd5 Nh3 g1B Qc1 g2 Rd7 Bgh2 Qa1 g1B Qg2 Bhg3 Qd6 B1f2 Qc6 Bc7 Qb2 Bgf4 Qbb5 Rb8 Qa8 Rb7 Qc6 Rg3 Re7 Qb5 Rh2 Qb1 Rd7+ Ke5 d4+ Kf5 Qe8 Kg4 d5 Kh4 d6 Rg7 Nd5 Rb3 Qg8 Bg1 Nb6 Bf2 Qh1 Kg3 Nf3 Bg1 Rc4 Bf2 Nfg1 Rd3 Bg2 Be1 Bf3 Bd2 Bh5 Bc1 Ke1 e2 Qf3+ Kh4 Kf2 e1B+ Ke2 e3 Qg2 Bg3 Rc3 Bd2 Kf3 e2+ Ke4 e1N Rh1 Bde3 Rh2 Rd2 Rh1 Nd3 Rh2 Be8 Kd5 Bg6 Kc4 Nb2+ Kb5 Rd3 Ka6 Bf7 Re7 Be1 d7 Beg3 d8B Be1 Qgd5 Kg3 Rd7 B1f2 Rh1 Be1 Nf3 Kg2 Nfg1+ Kf1 Qg5 Bh4 Qgg2+ Ke1 Bf3 Be8 Ng5 Bhg3 Rh6 Bg6 N5h3 Bh4 Bh5 Bf7
5Q1K/1p1n1b1R/k2r4/1nBpNnrN/rR2Qb2/NB1Bb1R1/2q4b/5N1Q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 Kf3 g5 Kg4 d3 h4 d6 a4 Kd7 c4 Kc7 f4 Kb6 a5+ Ka6 h6 d2 Kh5 e4 Kg6 g4 h5 b3 f6 b2 f5 g3 h7 e3 c5+ e2 f7 g2 c6 Qc7 f6 Qd7 h6 Qh3 c7 Qe3 Qc2 d1R Qe4 Bg7 f8N Qc5 f7 Re1 Ra4 Bd7 c8B Qb6 Na3 b1N Rb4 Bb5 Ne6 Bd3 f8Q Nc3 Nf4 Qb5 Be3 Nc6 Nf3 g1B Nh5 Nd4 Be6 Qc4 Nd2 Nf5 Bc5 Nf6 Bd5 Rg8 h8Q Rd1 h7 Qa2 Bb3 e1B Kf7 Bb5 Bd3 Nd7 Nf1 Bd2 Rh3 Bf4 Rg3 Qf2 Kg6 Bgh6+ Kf7 Ne2 Qa1 Rg6 h8R Ned4 Rh7 Bh2 Qc1 d5 Qb1 Re6 Kg8 Qc2 Kh8 Rd2 Qh1 Rg2 Qe1 Rb6 Qe4 Be3 Rf7 Bhf4 Rh7 Ka7 a6 Ba4 Bd6 Nb5 Be7 Rg6 Bd6 Kb6 a7 Ka6 Be7 Rg5 Bc5 Rd8 a8N Rd2 Be2 Rd4 Nb6 Nb8 Ba2 Rd6 Nbc4 Nc7 Bd3 Be8 Ne5+ Nb5 Rb1 Ra4 Rb4 Nd7 Bb3 Bf7
bQ1Q1R1n/4N3/Nb3R2/2rN1n2/1B1KpQ2/r1R3q1/k1bB2p1/bNqBb3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 a5 b4 g5 c4 d5 h4 e5 f4 g3 c5 a4 b6 g4 c6 a3 f6 Ke6 b5 g2 b7 g3 b6 a2 c7 Bb4 f7 Be1 f8B Ra3+ Qb3 Ne7 h5 Nf5 h6 Qh4 h7 Nc6 b8Q Nd8 b7 Nf7 Ne2 g1B Bd2 g2 Rh3 Qf2 Re3 Qg3 Bfb4 Rg8 h8Q Rg5 Qh4 Nh8 Nec3 Rh5 Qd8 e4+ Ke2 Bd7 c8N Bc6 Ne7 Rg5 Qd1 Bgf2 Qc1 d3+ Kd1 d4 Be2 Rh5 Ncd5 Rg5 Qa8 Rh5 b8N Bb7 Qa7 Ba8 Na6 Rg5 Qab8 Bg1 Bdc3 d2 Kc2 d1Q+ Kb2 d3 Bd2 Bgf2 Rf3 Bb6 Qcc7 Nd6 f5+ Ke5 f6 Kd4 f7 Nf5 Qf4 Kc4 f8R Rh5 Nbc3 Rg5 Rc1 Rh5 Ka1 Kb3 Nb1 Rg5 Rc6 Qc1 Rcf6 Rh5 Bdc3 d2 Re3 d1B Bd2+ Ka4 Rc3 Bc2 Bf3 Qd1 Kb2 Rg5 Rb3 Qc1+ Kc3 a1B+ Kc4 Rh5 Rc3 Ng7 Ne3 Rb5 N3d5 Rc5+ Kd4 Nf5+ Ke5 Bb3 Bh5 Bc2 Bd1 Nd4 Rc4 Kb3 Rc3+ Ka2 R8f7 Nb5 Rf8 Nd6 Kd4 Nf5+
R1N2k1r/1Bq1rn2/Q1N2K1b/1qNB2Q1/p1Qpbn1B/6bb/2RB1R2/6b1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 Kd3 d5 h4 e5 c4 g5 b4 g3 f4 g2 b6 g4 f6 g3 c5 Bh6 c6 Bg4 b5 Bg7 f5 Nh6 c7 Kf8 c8B Kg8 h5 Na6 f7+ Kf8 b7 Qg5 b8Q Ra7 b6 Rd7 b7 Qe7 Qd2 Rg8 Qd6 Bf3 b8B Rb7 Nc3 Ng4 h6 Bf6 h7 Bd1 h8Q Bg5 Qh4 Nh6 Ne4 Rd7 Nf3 g1B Rh2 g2 Nc5 Nc7 Bb7 Rh8 Qa6 Ne6 Qb4 Qe8 Bd2 Re7 Qbc4 Qb5 Qh5 B5e3 Qg5 a4 Rc1 Bgf2 Rc2 g1B Bg2 Bg3 Bh1 Bef4 Rf2 Be3 Bc7 Bef4 Bd8 Be3 Nh4 Bg4 Bf3 Bh3 Ng6+ Kg7 f8N Nf7 Nfd7 e4+ Ke2 Bef4 Nb6 e3 Kd3 e2 Nc8 e1Q Ne5+ Kf8 Nc6 Qe5 f6 Qc7 Be4 Nd6 f7 Be3 Ke2 d3+ Kf3 d4 Bd5 Nf4 Qf5 Bf1 Kg4 Bg2 Kg5 Be4 Bb4 d2 Kf6 d1B Bd2 Bdf3 Qg5 Bg2 Qa7 Ne2 Qf4 Re6+ Kg5 Kg7 f8R Qca5 Qa6 Qc7 Nb6 Bh3 Be7 B3h2 Ra8 Bg3 Nc8 Kg8 Bf6 Kf8 Rf3 Re7 Rf2 Nf5 Kg6 Nd6+ Qf5 Nf7 Bh4 Bef4 Kf6 Bh6 Qg5 Nf4
N1bK2r1/1rR2bBk/bB2p3/1b1B1Nb1/QQqn1N2/Q1Q5/1R5p/1R2n1q1 w - - 0 1 illegal: No possible last move
5b2/1RQqnQn1/1r2B1n1/b2qBN1b/2K5/1BBr1n1p/1p1N1QRR/2k4N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 g4 Kc5 f4 h5 a4 e5 f6 b5 a5 h3 g5 h4 f5 c6 d6 b3 d7 Kb4 f7 b2 g6 h2 g7 c5 f6 h3 a6 Rh6 a7 Na6 Qc2 Nc7 Ne2 Ne8 Ra2 Ne7 g8N Ng7 Ng3 Bb7 Rg1 h1Q Rg2 Qh2 Nh1 Bf3 Be2 Qc7 d8B Bh5 Bd1 Qc6 Bc7 Qd7+ Bd6 Rd8 a8B Ng6 Ne7 e4+ Ke3 Qe5 d4 Qh2 Be5 c4 d5 c3 Kd4 e3 d6 e2 Bd2 e1N Bd5 Nf3+ Kd3 Qg3 Be1 Qf4 Nd2 b1N Rb2+ Ka3 Be6 b4 Nf5 b3 Qc1 Qg3 Kc4 c2 Rh2 Nc3 Rg2 Qa7 d7 Nd5 Rh2 Nde7 Rg2 Rb8 d8R Rb6 Rb8 Qd7 Rb7 Qh2 Nf1 Rd6 B1c3 Rd3 Qf4 c1B Nd2 Qg1 Qg3 Qb6 Qf2 Qbd6 Rc2 Ka4 Qc5 Ba3 Qc7 Bb4 Rb2 Ka3 Bc2 Nc8 Bd1 Ba5 Rc2 Be7 f8Q b2 f7 Ka2 Qe8 Ka1 f8Q Ka2 Qf6 Bf8 Qh4 Nce7 Qf2 Ka1 Qf7 Ka2 Ne4 Kb1 Rd2 Kc1 Bb3 Nh8 Re2 Rf6 Nd2 Nhg6 Bd5 Qa3 Rh2 Rb6 Be6 Qad6 Re3 Ne1 Rg3 Nf3 Rgg2 Qd5+
n2N1q1K/3Bn2n/BN4BQ/2b3rr/2pRRB2/2QqR1b1/N3bp1k/1Q1b4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 c5 b4 a4 g5 h3 b6 a3 b5 a2 b7 h4 g6 h2 b6 f6 g7 h3 Qc2 f3 Bf4+ Ke7 d6+ Ke6 d7 f2 d5+ Kf7 Kf5 Ra6 e4 Ra5 d6 Na6 b8Q Nc7 e5 Ba6 b7 Be2 Qc3 Na8 Nf3 Bd1 Bd3 f1B Ba6 Bfe2 Re1 h1N Nfd2 h2 Nc4 Nf2 Nb6 h1Q Qc8 c4 b8Q Be7 Qc6 Qf8 d8R Nh3 d7 Bc5 e6+ Ke7 Kg6 f5 Qbb7 Qf1 Qh1 Ng5 Qh6 Nh7 Qb8 Bg4 Re4 Qd3 Qb7 Bge2 Re3 Ngf6 g8B Nd5 Bf7 Rb5 Qcg7 Ra5 Nc3 Rb5 Rb1 a1B Na2 Be5 Be8+ Kd6 e7 Rg8 Re4 Ra5 Rb3 Rh8 Bf7 Rg8 e8B Rb5 Bd2 f4 Rc3 f3 Bf4 f2 Be6 Qb1 Re3 Qd3 B8f7 Rh8 Qf6 Qe8 Kg7 Ne7 Bg6 Ra5 Bg5 Bg3 Qc3 Rb5 Rb8 Ra5 d8N Rb5 Bd7 Ra5 Rf3 Rb5 Rd4+ Ke5 Re3+ Qe4 Nb4 Bf4 Nc2 Rf8 Qb3 Bd6 Ne6 Ng8 Nc8 Rf5 Qc3 Qf8+ Kh8 Rd5 Nb4 Bc5 Na2 Bh2 Be7 Rh5 Qb1 Bf4 Nb6 Bh2 Ng5 Kf4 Re8 Rf5 Nf7+ Rfg5 Rdd3 Qf5 Bd6+ Kg4 Nd8 Bg3 R8e6 Kh3 Rd4 Qd3 R6e4+ Kh2 Bf4 Ne7+
1Kb1R3/Nq1rQ3/q2b2k1/2Bp1Rp1/1b1Q2nb/BBQ1n2N/rBR3N1/2q5 w - - 0 1 illegal: No possible last move
1r1Bkb1n/3n4/Q1N1qB2/Rpp2R1K/q1B1QNQ1/N1R1rr2/b3r3/1n2Q3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Kf3 c5 Kg4 b5 a4 b3 f4 h3 d4 e4 a5 h2 d6 e3 a6 e2 d5 e1N d7+ Kf7 a7 b2 f6 h6 d6 Na6 f5 Nf3 Bg5 Nh4 Ra5 Nb8 Kh5 Qb6 d8B Nd7 g4 Bb7 Bc4+ Bd5 Qe1 Ng6 Nh3 Rb8 a8Q N8e7 Na3 b1R Nf4 Rb2 Qa6 Ke8 Qe4 Rh7 Rc1 Rf7 Rc3 h1R+ Bh4 Rd2 g5 Nh8 g6 Rh3 g7 Re3 g8Q Rde2 Qg4 Qc6 Bd3 Ba2 Bc4 Qd5 Bg5 Qe6 Bh4 Nb6 Bg5 Ned5 Bh4 Rf3 Bg5 Re7 f7+ Kd7 f6 Ree3 Rc1 Nc3 Rc2 Nb1 Rc3 Bg7 f8Q Re8 Qg8 Bf8 f7 Re2 Kh4 h5 Bgf6 Ree3 Kg5 h4 Kh5 h3 Qg3 h2 Q8g4 h1Q+ Q3h4 Bh6 f8R Qd1 Qe1 Qa4 Bg7 Rc8 Rf5 Rb8 Bd4 Re7 Bf6 Ke8 d7+ Kf7 Bc7 Bf8 d8N+ Ke8 Nc6 Nd7 Bd8 Rg7 Qgh4 Rg2 Qg4 Rge2
4rQQN/1bK1R2N/4Bn1p/1Q1N1q1n/7k/1p4rq/1B1q2qb/R1r1BBR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 b5 f4+ Kh6 d4 c5 a4 c4 g4 h3 g5+ Kg7 f6+ Kg6 f7 c3 f5+ Kg7 f6+ Kg6 a5 e6 d6 c2 a6 b3 d7 h2 a7 b4 d5 h6 d6 b2 Nc3 b1Q Qe2 b3 Nd5 Bb7 Bb2 c1R Nh3 Rc2 Qb5 Kh5 g6 Kg4 g7 Qc8 d8Q Kh4 d7 Rc1 Rg1 h1Q Ng5 Qg2 Nh7 Bb4 f8Q Qf5+ Kd4 Ba5 f7+ Nf6 g8B Bc7 Qde8 Qfh3 d8B Bh2 Ba5 Nbd7 Bd2 Rb8 a8R Nh5 R8a7 Ndf6 Bdc3 Qd7 Kc5 e5 Kb6 e4 Bb4 e3 Be1+ Qgg3 Qc8 Qdf5 Qe6 Re8 Qc8 Bc6 Re7 e2 Qe6 Nf4 Kc7 N4h5+ Qd6 Qg2 Qg7 Qgh3 f8N Qg2 Bf7 Rg8 Be6 Qgh3 Qf7 Rg5 Qg8 Bb7+ Bec3 e1Q Ng6+ Kg4 Nh8 Kh4 Qf4+ Rg4 Qd6 Qgg2 Qf4 Qee3 Qd6 Rg3 Qa3 Rd1 Be1 Qed2 Qd6 Rb8 Qdd8 Rb1 Qdf8 Re8 Qc5 Rd1 Qb5 Rc1+
1RKQBr1B/4n1r1/R5pk/pnB3Nr/1N3q1r/2Q1q1Q1/N2Rb2b/5Bn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 f5 h4 Kf7 e4 Kg6 d4 c5 b4 a6 e5 g3+ Kf3 c4 d6 c3 d7 c2 e6 g2 h5+ Kh6 d5 g6 d6 Qa5 d8Q Nd7 e7 Bg7 e8B Be5 b6 Ngf6 b5 Ra7 b7 Nb6 b8R Nfd5 d7 Bc3 Nh3 Qb4 Qd3 Be5 Rh2 Na4 b6 Ne7 b7 Nc3 Be3 c1Q Bc5 Nb5 Qc3 Qca3 Ng5 g1N+ Kf2 f3 Ke3 Qba4 Rd2 f2 Qc7 Bg3 d8Q Bh2 Qg3 f4+ Kd3 f3 Ke3 Qd1 Kf4 Bg4 Ke5 Qda4 Kf6 Rf8+ Ke5 Rf5+ Ke6 Qf4 Kd7 Qc1 Qb2 Qe1 Nc3 Qee3 Na2 Re5+ Ne6 Rg5 Qc3 Rf5 Ng5 a5 Rb1 Nd6 Rb6 Nb5 Bg2 f1R Ra6 f2 Bh3 Ng8 Kc8 Be2 Bg2 Rc1 Bf1 Rd1 Ra8 Re5 b8N Rg7 Nc6 Rb1 Rb8 Rb4 Bg2 Rd4 Ncb4 f1R Bh3 Qh4 Bg2 Rf8 Bf1 Qhf4 Ne6 Kh7 h6 Rh5 Ng5+ Kh8 h7 Qf6 Rb2 Rdh4 Qc1 Qff4 Rd2 Ne7+ Kb7 Rgf7 Qc2 Kg7 h8B+ Kh6 Qc3 Nd5+ Kc8 Rb7 Bh3 Rg7 Bf1 Ne7+
B5r1/5b2/1KbBkp2/2B1b1qn/R2RN1NQ/b2Q1R1B/2qN1pr1/nQ5n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 c5 g4 a5 e4 h5 d4 c4 e5 c3 e6+ Ke7 d6+ Kf6 d7 a4 d5 a3 g5+ Ke5 d6 a2 e7 c2 e8N h3 b6 h2 g6 h4 g7 h3 b7 f3 Ke3 f2 b5 Ke6 Kd4 Na6 b8Q Nh6 g8B Qc7 d8R Bd7 b6 Be7 b7 Bg5 Nd2 Qc8 Ngf3 Be7 Ne5 Nc5 Ng4 Bc6 Ba3 c1Q d7 Ra7 Bh7 Ng8 Be4 Nf6 Nd6 Nh5 Rf8 Bd5 d8Q Rg8 Bf3 Qc7 N6e4 Bd6 Qh4 f6 Rd8 Ra8 Rg1 h1N Rg3 h2 Bh3 Qg7 Qf1 Qc2 Qd3 Qg5 Bfg2 Bc6 Rf3 Be8 Rd7 Bf7 Rd8 Na6 Bc5 Nb4 Qc7 Rc8 b8B Rg7 Rd7 Rcg8 Qb7 Be7 Bbd6 Rg6 Rb1 Bf8 Rb3 a1B+ Rc3 Bb2 Qb8 Ba3 Rc4 Be7 Ra7 Bd8 Ra4 Bc7 Be7 Bf4 Bcd6 Be5+ Kc5 Qb2 Qb5 Nc2+ Kb6 Na1 Rd4 Qc2 Bc5 N1g3 Qb1 h1B Bed6 R6g7 Rf4 Rg6 Nc3 R6g7 Ba8 Bc6 Nce4 Nh1 Rf3 Qf5 Nh2 Rg2 Ng4 Qg5
1kqn3b/R2Q2rN/3N1pnr/2Qp2Rb/b6Q/1K1B1RB1/1b1Q3N/2r3qB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 b4 a5 h4 a4 e4 g4 c4 f6 Kc2 a3 b6 d6 e5 Kd7 h6 a2 b7 Kc7 h7 d3+ Kb3 g3 h5 f3 b5 f2 e6 d2 e7 g2 e8N+ Kd7 b6 Qc7 h6 Na6 b8Q Qc5 b7 Nb4 Nc3 Qd5 Qc7+ Ke6 b8Q Qh5 c5 Na6 c6 Qh2 Nf3 g1Q Qbb6 Ra7 Ne4 Rb7 Bd3 Qh3 Nh2 Nb4 Qc5 Bd7 Ng5+ Ke7 Qdc2 d1B Bf4 f1R Bg3 Bh5 Qd2 Bg7 Qc8 Rc1 c7 Bc6 Q8f5 Ra7 c8B Kd8 Bb7 Ne7 Ba8 Ng6 Qg4 Qe3 Rf1 Qg1 Rf3 Rf7 Qh4 Kc8 Qg4+ Kb8 Qd7 Bb5 Bae4 Nc6 Bd5 Rg8 h8Q Nd8 h7 Re7 Bc6 Re5 Bce4 d5 Nd6 Rf5 Rf1 Rf4 Bh1 Rh4 Rf3 Qg4 Rb1 a1B Rb2 Bf8 Ra2 Bb2 Ra7 Bc6 Qhg7 Bb5 Qh6 Bg7 h8R Qf5 Rh7 Bh8 Rg7 Qh3 Nh7 Qe6 Qdc6 Qc8 Qd7 Rh3 Qhg5 Bc6 Qh4 Bb5 Re7 Rg7 Re5 Ba4+ Ka2 Qf2 Qhf4 Qg1 Rg5 Bg4 Qfc4 Rh6 Qe4 Bh5 Qh4 Bb5 Kb3 Ba4+
QBq1N3/RbQ2r2/B3pRnR/n7/kN1KR3/r7/p2Nbrq1/1BQ1b2r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 c5 g4 a5 f4 h5 b4 c4 d4 h3 b6 e6 b5 h2 g5 a4 b7 h4 d6 c3 d5 h3 b6 a3 g6 c2 f5 Bh6+ Kd4 e3 g7 e2 f6 e1Q f7 Na6 f8R Qe2 b8R Nc5 b7 Nd3 Bf4 c1R Nf3 Ra5 Nc3 Qg5 Ne4 Nc5 Nfd2 Rh7 Rf6 Ne7 g8B Rc2 Qc1 Qeg2 Ba6 Rf7 Bh7 Qg8 Ra8 a2 b8Q Qd8 Ra7+ Bb7 Qa8 Qc8 Rb1 Bf8 Rb4 Ng6 Bg3 Ra3 Be5 Ke8 d7+ Kd8 Nd6 Kc7 Rc4 Kb6 d8N Ka5 Ne8 Rb2 d6 Nb3+ Kc3 Be7 d7 Bb4+ Kd3 Rc2 Nc6+ Ka4 d8Q Na5+ Kd4 Rb2 Bb8 Rc2 Rg1 h1R Qc7 h2 Re1 Rb2 Re4 Rc2 Rc3 Rb2 Rh3 Rc2 Nb3 Be1 Rh6 Rb2 Nb4 Rf2 Reh4 Bf3 Nd2 Be2 Rg4 Rhf1 Rgh4 h1B Re4 Qg1 Rg4 Bb7 Re4 Qg2 Re3 Ne7 Bb1 Rh1 Re4 Ng6
5k2/1Q1qRq1Q/2p1n1pn/Q1NN3n/1NK1Rbrn/1Q3R2/B2Bbr2/3B1q2 w - - 0 1 illegal: No possible last move
n1Nr4/1rQ4R/1p5b/1q5k/1Q1QQBN1/1rBBKp2/bb1R2N1/3R1bqn w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 f5 h4 Kf7 e4 c5 a4 g5 d4 b3 a5 g4 a6 c4 d6 b6 e5 f3 d5 f4 e6+ Kg7 h6+ Kg6 h5+ Kg5 h7 c3 a7 b2 e7 c2 e8N Bf5 h6 Be4 d7 Kg6 d6 Na6 Na3 b1R Nf6 Qc8 d8Q Bb7 d7 Qc6 Qd6 Rb3 Bd3+ Kg5 Q8c7 Rd8 a8Q Ne7 Qb4 Nf5 Nb5 Ng3 Nd6 Qb5 Nc8 Bd5 Ne2 Rg8 h8B Rg7 Bd2 c1B h7 Bb2 Rad1 Re7 Rh3 Bh6 Qac6 Be6 Qce4 Bg8 Bg7 Bf7 h8Q Nh1+ Kg1 g3 Ng4 g2 Bgc3 Bc4 Qhd4 Rh7 Ng3 Re7 Nf5 Rh7 Nfe3 f2+ Kh2 f1B Kg1 f3 Bc1 Rg8 d8R Rd7 Rh2 Rgg7 Rh8 Rd8 Rh7 Be6 Qcc4 Rb7 Qc7 Ng3 Kf2 g1Q+ Ke1 Bg8 Kd2 Nh1 Rf2 Be6 Ng2 Bc4 Ke3 Bd5 Qcc5 Nc7 B1d2 Na8 Qc7 Ra3 Bc1 Ba2 B1d2 Rb3 Bc1 Qh2 Rfd2 Kh5+ Qcf4 Qf5 Re2 Ng3 Kf2 Rf8 Qc7 Qb5 Bf4 Nh1+ Ke3 Rd8 Red2 Qg1+
RQ3r1k/2qb2R1/p2pqBQ1/n4QK1/6Nq/R3BN2/1q2N2b/Qrn2B1b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Kg4 e5 c4 e4 f4 d3 b4 h6 b6 e3 f6+ Kh7 f5 d6 c5 h3 b5 h5+ Kg5 d2 g4 a6 c6 e2 b7 e1Q c7 h4 b6 h2 Nc3 h3 Nce2 Nd7 b8Q Nh6 b7 Be7 Nf3 Nc5 Rg1 h1Q Ra3 Be6 c8Q Qc7 Qe8 Rf8 Qg6+ Kh8 Qa4 d1Q Be3 h2 Qc8 Bg8 b8Q Be6 Qd4 Bd7 Qa1 Nb7 Rg2 Rg8 Rg3 Bf8 f7+ Qd4 f6 Bg7 f8R Qb2 f7 Na5 Re8 Be5 f8B Nf5 Be7 Rf8 Bd8 Bg7 Bf6 Nd4 Rg1 Ndb3 Rg2 Bc6 Qcf5 Nc1 Qb7 Qf2 Qf7 Qe5 Kh5 Ba4 g5 Na2 g6 Rg8 Nc1 Qfc2 Be7 Qb3 Ne2 Qee6 Rg5 Ra7 Ra8 Be5 Qb8 Nc1 Qfe8 Rf8 g7+ Kg8 Rg6 Bd7 Kg5 Rb7 Bd8 Kh7 g8N Kh8 Nf6 Qbc2 Qf7 Rb1 Ng4 Qb2 Rg7 Bg3 Bf6 Be5 Bg2 Qe1 Qfe8 h1B Qeg6 Bh2 Bf1 Qh4+
3K1N1Q/1pR2p2/1Br1qqNQ/3RQ3/4NnBq/1brr1rB1/1R3n2/1Bb1k3 w - - 0 1 illegal: No possible last move, all moves rejected
rB2n3/1Kr1Q2n/4Qnp1/bR2NNR1/2b2kB1/1B3Bb1/1nb2pR1/Nq3Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 b4 d3 h4 g6 c4 f3 h6 f6 h7 d2 c5+ Ke6 c6 f2 h5 d6 c7 a4 b6 a3 h6 a2 b5 Ba6 c8B+ Nd7 b7 Qb6 b8R Qd8 b6 Ne7 b7 Qe8 Bg2 f1B Rh2 Bg7 Nf3 Rf8 h8N Qf7 h7 Nf5 Na3 Bc4 Nc2 Ra7 Qe1 d1N Nh4 Nde3 Bf3 Nd5 Bf4 Rg8 Rd1 a1B Rg2 Bc3 Na1 Ba5 e3 Bfe2 Qf1 Qf8 Rd3 Bd1 Nf7 Bc2 h8Q Qd8 Ne5 Qb6 Qh6 Qb1 Qh7 Bf8 Bg3 Ng7 Nf5 Ne8 Kd4 Rg7 e4 Ra8 Rb3 Rf7 Rb5 Bh6 Bh2 Bf4 Rg5 Bg3 Qg8 Ra6 Ra8 Ra7 b8Q Rc7 Qg7 Rf8 Qb6 Rh8 Bg4 Rg8 Bb7 Nf8 Ra6 Nh7 Qf8 Bb4 Ra2 Ba5 Rab2 Nf4 Bc6 d5 Kc5 d4 Qg7 d3 Ra2 Ba4 Rg2 d2 Qf8 d1N Qa6 Bc3 Kb6 Bc2 Qa2 Nh5 Qfa3 Rc8 Kb7 Ba5 Qa4 B4b3 Ne7+ f5 Q4a3 Bh4 Nf3 Neg7 e5 Nb2 Bf4 Bg3 Be4 Kf7 e6+ Kf6 Bd5 Ra8 Bb8 f4 Nf5 Rc8 e7 Ne8 Bc4 Rc5 Be2 Ke6 Qb4 Kd5 Ne5 f3 Bc4+ Ke4 Qba3 Nc7 e8B f2 Bc6+ Kf4 Bcf3 N5f6 Bf7 Rc3 Qe7 Nce8 Bc4 Bb4 Qa6 Ba5 Qae6 Ba2 Bb3 Rc8 Ba4 Bc4 Bb3 Rc7+
7R/1Brn1RbR/N1QRp3/8/1r1Q2Bp/1r1p1KQb/1bq3nN/3kB1nN w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 f4 Kf6 c4 h5 g4 d5 b4 a5 g5+ Kf7 f6 Ke6 f5+ Ke5 c5 Ke4 b6 e6 g6 a4 b5 h3 g7 h2 b7 a3 b6 a2 f7 Rh6 f6 Ra7 c6 Qe8 c7 Nc6 b8R Bb7 Nh3 Qc8 Bd2 d3+ Kf2 d4 Be1 d2 Be2 Rh7 Bg4 Kd3 Kf3 Ra4 Qc1 d1N Nd2 Rb4 Nf1 Ba8 b7 Ne3 Qb2 Ng2 Nf2+ Kc4 Rd1 a1B Qc1+ Kb3 Qf4 Kc2 Qg3 Qd8 c8B Qc7 Qh4 Bb2 Rd3 Nge7 g8Q Bg7 f8Q Ng6 f7 N6f4 Qe8 Ne2 f8R Kc1 Rf7 Ne5+ Ke4 Qc3 Qc6 Nd7 Kf3 Qc2 Qg3 Rb3 Qh8 Rb4 Rg1 h1R Nh2 h4 Rf1 Rg1 Nh1 Nb6 Rd7 Rb3 Rd6 Nd7 Rc3 d3 Rc4 Bf8 Qd4 Bg7 Rc5 Kd1 Rh5 Be5 Rf2 Re7 Rh7 Bg7 Ke4 Rf1 Rf8 Rf5 Rf7 Rfb5 Kf3 R5b4 Qc7 Nf6 Qc6 Rc7 Bd7 Qc5 Rbh8 Qc2 Bc8 Nd7 b8N Bb7 Na6 Ba8 Kf2 Bb7 Qcc4 Be4 Bb7 Bg6 Qc6 Bf5 Bh5 Bh3 Bg4 Nf4 Ke3 Ng2+ Kf3 Ng1+
3r1n1N/qQ1B4/prQ2b2/Kpbr1QN1/1NR4n/BQ6/p4B2/k2bn1RR w - - 0 1 illegal: No proof kernel
n3r2N/1QN1p3/1B1N2p1/1b1Kn1Nk/bR4Rb/q1Qn1r1B/R1p5/r1QB4 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Ke3 b5 Kd4 g3 a4 g6 f4 g2 h4 b3 a5 c6 a6 b2 f6 b4 h5 b3 h6 Rh7 d6 c5+ Kd5 c4 d4 c3 a7 c2 d7 Ba6 f5 Rh8 h7 Bb5 Rh4 Nc6 Nh3 g1N Na3 b1B Ra2 b2 Rg4 Nh6 Nc4 Rc8 a8B Qe8 d8Q Ba6 Qb6 Bb5 Qb7 Bg7 Be3 Nd8 Qc1 Rf8 h8N+ Kg8 f7+ Kh7 f6 Nf3 Bg1 Ne1 Nd6 Nd3 Be2 Ba4 Bd1 Ne6 Bf2 Qd8 Be3 Re8 f8Q Nf7 Ng5+ Kh6 Bg1 Nfe5 f7 Bb5 Qg8 Qa5 f8R Qc3 Rff4 Bf6 Qg7+ Kh5 Ke4 Rf8 d5 Qc5 Ra1 Qb6 Qd7 Qb8 Nf3 Nc4 Ndf7 Qd6 Bb6 Qc7 d6 Bh4 N3g5 Qa7 Qc3 Qa4 Bd5 Qa6 Qb7 Ba2 d7 b1R d8N Qa3 Nd6 Nc7 Nde6 Bb3 Ra2 Na8 Nc7 Rce8 Kd4 Rf7 Bg2 B3a4 Kd5 Nce5 Rb4 Ra1 Bh3 Rf3
1B3b1R/3rqBNR/KrN5/n1kN4/Q5Bb/2p5/bpBpnR2/2qq2QQ w - - 0 1 illegal: No proof kernel
QQ3BR1/2BrbK2/2Brq3/1p2R1b1/5nRp/Nq3R1N/1qpn3k/1Q2Nb2 w - - 0 1 illegal: No possible last move, all moves rejected
5rqk/1b1QN3/1Bp4p/1Nr1R1B1/BqNQ3b/5nRK/p1R4q/r1R2n1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 g4 f5 Kg2 Kf7 e4 Kg7 b4 a4 d4 c6 b6 a3 d6 f3+ Kh3 a2 d5 f2 g5 h6 g6 f4+ d7 f3 d6 Qe8 e5 Ne7 b5 Na6 e6 Ra7 d8B Nd5 b7 Be7 b8R Nac7 b6 Na8 d7 Nc3 b7 Na4 Bb6 Ra5 d8Q Kg8 g7 Rc5 Rh2 Nb2 Q1d7 Nd3 Na3 Nc7 Ne2 Ne5 Nc4 Nd5 Bg5 Ne3 Nc3 Qf8 Be2 f1R Rc1 f2 Bd1 Nf3 Nb5 Re1 Rg2 f1Q Ba4 Qg1 Rg3 Nf1 Rc2 Kh7 g8N Ra1 Qd4 Bf6 Ne7 Rg8 Q8d7 Kh8 Nd5 Qd6 e7 Rf8 e8R Qf4 Rc1 Qd2 Re5 Qb4 Ne7 Qg2+ Kg4 h3 Rc2 h2 Rc1 Qgb2 Kh3 Q4b3 Ra8 Qb1 b8Q Bb7 Ra5 Q1b2 Re2 h1Q+ Rh2 Qg1 Rhc2 Qb4 Qbe5 Q2b3 Qe1 Qf2 Nca3 Qg8 Nc4 Ne3 Qh1 Nf1 Ra8 Qe2 Re8 Qe5 Nf5 Qe2 Re5 Qf2 Ne7 Qe2 Bf4 Bh4 Bg5 Qh2+
1Q1q1N1b/3R1np1/R1B3KN/1p1rN3/Qbp1q2k/1QR2B2/1N4rn/2q3Bb w - - 0 1 illegal: Other
rR2QBN1/p2BpR1n/nQbq2N1/2B5/qb3R1p/nR3Q2/2r2rK1/2k1N3 w - - 0 1 illegal: No possible last move, all moves rejected
1B2r3/1b2r1QR/3p4/2n2BNN/N2qnbBk/3Rp2n/r1Q1RrRp/K6Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 c4 h5 Kc2 a5 b4 d3+ Kb2 a4 c5 d2 c6 e4 b6 h3 g5+ Kg7 b7 h4 g6 Kf6 g7 h2 c7 h3 b5 Bc5 b6 Be7 Bd3 Rh4 Qc2 d1R Nc3 Re1 Nf3 Qe8 Ng5 Rd1 Ra2 a3+ Ka1 Bb4 Na4 Na6 b8Q Bd6 b7 Ra7 Qa8 Qd8 b8R Rh8 Rbb2 Bb7 c8B Rd2 Be2 Qb6 Bg4 Qd4 Rd1 Rg2 Rd3 h1N Be3 h2 Bf2 e3 Bg3 Nh6 g8R Bc7 Rg7 Rf2 Re7 Nc5 Rh7 Bg2 Qf3 Re8 Qfd1 Nf7 Qdc1 Bb7 Q1d1 Ke7 f6+ Kd8 f5 Bf4 Qg1 Nd6 f7 Ke7 f8N+ Kf6 Ng6 Nde4 Qgc1 Rg2 Qe1 Nhf2 Qec1 Nh3 Qh1 Bd6 Nf4 Rf2 Qc3 Be5 Re2 Bc7 Rab2 a2 Qc2 Bd6 Nfe6 Bb8 Ng7 Bf4 Nh5+ Ke5 f6 d6 f7 Rg2 Be1 Rf2 Ng7 Kf6 Ba5 Kg6 Bc7 Kf6 Bb8 Kg6 N5e6 Kf6 f8Q+ Kg6 Nc7 Kg5 Nh5 Kh4 Bcf5 Bc8 Ne6 Rae7 Qc3 Bb7 Ng5 Rg7 Rbd2 Rge7 Kb2 a1R Qg7 Ra3 Rc2 Rb3+ Ka1 Rb5 Rcd2 Rb2 Qc2 Rf3 Rg2 Rf2 Re2 Ra2+
3QN1R1/B1nq1b1n/3pQ1N1/4p3/B2N2rR/Kb1p1rk1/1Q3Rbb/N1r4B w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 c4 a5 Kc2 h5 Kb3 d3 c5 d6 c6 a4+ Ka3 h3 b4 h4 c7 h2 g5+ Kg7 b6 h3 b5 Ra6 g6 Kf6 g7 Qd7 b7 Be7 b6 Ra7 Ra2 Rh4 Be3 Nh6 g8N+ Kf7 f6 Ke6 f7 Kf5 f8Q+ Nf7 Qg4+ Ke4 f5+ Kd5 f6 Na6 b8Q Bb7 c8B Ng5 f7 Nh7 Rf2 Nc7 Qe6+ Ke4 Nf3 Rg4 Bg2 Bd5 b7 Bb3 Qd8 Bg5 f8N Bf4 Ng6 Ra8 Ba7 Bg3 Rd1 h1B Nd4+ Ke3 Rg1 h2 Nd2 Bf4 Be4 Bg2 Nf6 h1B Ne8 Bh2 Bc6 Bgd5 Ra1 Bhg2 Rh1 Bg3 Rh4 Bh2 Qee7 Bf7 Qe6 Bf1 Bh1 Bg2 N2f3 Ke4 Ne1 Ke3 Nec2+ Ke4 Kb4 a3 Na1 a2 Ka3 Bf3 Nf8 Kf4 Ng6+ Kg3 Rh5 Qb5 Rh4 Bg2 Bd7 Qc6 Qbc8 Qb5 b8R Qb7 Ba4 Qc6 Qb7 Qd7 Rc8 Rb8 Qc6 Rb4 Qc2 Rc4 Qb2 Rc1 Nac2 a1R+ Qa2 Rab1 Na1 Rf1 Qb2 Rbc1 Qde7 Bg8 Rf8 Bf3 Nf6 Rce1 Rce8 Bc6 Qd8 Bg2 Rf7 Rf5 Ref8 Ref1 Ne8 Rc1 Rf6 Bf7 Rg8 Rf3 Rf4 Re3 Rf2 Rf3
b1KR1Rn1/3nk2p/N2N1R1n/6rQ/6pB/1Q5B/nBqQ1Bpb/3Nrb2 w - - 0 1 illegal: No proof kernel
rRb3k1/RbBrrNp1/2NQ1BQ1/1q6/3b4/2RKQprn/N1BN1p2/3n4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 c4 a5 e4 f5 h4 Kf7 b4 f3 h6 f4 b6 a4 h7 f2 b7 f3 h5 d3 e5 a3 h6 a2 b5 d4 e6+ Ke8 b6 Qd6 c5 Ra4 e7 Kf7 c6 Rc4 c7 Qe5 Ne2 Nf6 Nec3 Nc6 b8R Na7 b7 Nb5 Bb2 Nh5 Qc2 Rg8 h8Q Nf4 h7 Nh3 Be2 Rc6 Rc1 Rg6 Bd1 Rg3 Qb3+ Qd5 Bc2 Qc4 Qb4 Qc6 Qd6 Qc4 Nd5 Nc3 Nb4 Nd1 Bc3 Qb5 Bb2 Bg4 c8N Bf5 Na7 Bc8 e8N Be7 Nac6 Kf8 Qg6 Bc5 Nd6 Ba7 Nf7 Bb6 Bb3 Bc5 Rc3 Bb6 Kc1 d2+ Kc2 Ba7 Rc4 Bc5 Kd3 Ba7 Bc2 Bb6 Ke4 d3 Bf6 Bd4 Rc3 Ng1 Ra8 Nh3 b8B Bb7 Bc7+ Bc8 Ra7 Bb7 Na3 Bc8 Rb1 a1R Nc4 Ra5 Rb7 Ra8 Ra7 Bb7 Na2 Re8+ Bfe5 Re7 Qd6 Ne3 Rbb3 d1B Nd2 Be2 Qg6 Nd1 Rb2 Ke8 Rb1 Rf8 Qg8 Bf1 h8Q Be2 Qg8h7 Rg8 Qe6 Kf8 Qhg6 Bf1 Qhh7 Rh8 Qh4 Kg8 Bf6 Bc8 Qhh6 Bb7 Nb3 d2 Qe3 Bc4 Qe5 Be6 Qd6 Bec8+ Qe5 Nb2 Qe6 d1R Nd2 Rdg1 Qe5 Nd1 Qe6 Rd7 Qd6 Re1 Rb2 Qb3 Kd3 Re2 Qef4 Ree7 Qe3 Qb5+ Rc4 Rh4 Ne4 Bc3 Nb8 Qa6 Nc6 Ba8 Rb8 Bb7 Nd2 Qb6 Rc5 Ra4 Raa5 Bd4 Rc3 Qb1 Rd5 Ra8 Ra5 Qb2 Ra7 Qb5+
1nkn1QB1/3rqp1K/p3BbR1/1b1pBQ2/7B/r3QNNR/5N1R/rnr5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 h4 d5 b4 Kd7 c4 f3 e4 g4 e5 d3 Ke3 g3 Kf4 a6 e6+ Kc7 e7 d2 Kg5 f2 h6 g2 c5 Be6 h5 Rh7 b6+ Kb7 b5 Qe8 c6+ Kc8 b7+ Kc7 b6+ Kd6 c7 Kd7 c8B+ Kc6 Bd3 f1R Qb3 d1R Rh3 Bf5 Nf3 g1N Be6 Qd8 Nbd2 Nd7 b8B Kb7 Ne4 Ra7 Ng3 Ndf6 e8N Bg6 Be5 Be7 Nd6+ Kb8 b7 Bf5 Nde4+ Qd6 Nf2 Rh8 h7 Rde1 h6 Nd7+ Kh5 Ne2 Bg5 Nc3 Bh4 Kc7 b8R Rd1 Ra2 Bf6 Rb6 Kc8 Be4 Nb1 Qe3 Ne7 Bd3 Rg8 h8Q Rb7 h7 Rc1 Kh6 Nc6 Rc2 Re8 Qf8 Qe7 h8Q Rh1 Rd2 Nd8 Qh7 Rhe1 Bc2 Bd3 Qf5 Bb5 Kh7 Rg1 Nfh1 Rgd1 Rdh2 Rd3 Nf2 Ra3 Rc6+ Rc7 Rc4 Ra1 Rg4 Rc3 Rg6 Rca3 Bd3 Bc4 Qfg5 Nb7 Rg7 Rcc3 Kh8 Rd8 Bh7 Rc1 Bg8 Bb5 Kh7 Nc5 Bg4 Ne6 Rg6 Nb8 Qgf4 Qe8 Bf5 Rd7 Qg4 Nd8 Be6 Qe7 Qgf4 Bh8 Qf5 Bf6
4r2K/B7/q1qbB1Qn/k3p1RN/1rRQ3R/3p1Q2/Nq1p1n1B/N1qb2R1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 Kh5 Kb6 g4 e5 c4 a5 b4 h6 Kg6 h3 f4 d3 f6 a4 f7 d2 g5 h2 c5+ Kc7 c6 Kb6 c7 d4 f5 a3 f6 a2 Nf3 Qd7 Bh3 Bg7 f8R Bb7 c8R Ra5 f7 Bc6 Ne1 Qb7 Nc2 Bg2 Nc3 Qa8 Rc4 Qd5 Be6 Nf6 Rg8 Ra3 f8Q Ne4 Qff3 Rb3 Kf7 Nd7 g6 Bf8 g7 Bh3 Rb1 a1Q Na2 Qc3 Na1 Qa8 Qg1 Qb2 Qg6 Bd6 Rg1 Kb7 b6 Ka6 b5+ Ka5 b7 h1Q b8B Rb4 b6 Qa6 b7 Ndf6 Ba7 Nf2 b8Q Bg4 Qc8 Bh5 Qd7 Qg2 Rh1 N6g4 Rh4 Qg1 Re8 Qe1 g8N Qe4 Kg7 Qec6 Nf6 d3 Rg8 Be7 Qd4 Bd6 Ra8 Re8 Rb8 Qb3 Ba3 Qb2 Rd1 Ne3 Rg1 Nf5+ Kh7 Bg4 Rb7 h5 Rg7 Nh6 Rg8 Nh3 Kh8 Nf2 Qff5 Bd1 Qf3 Rb7 B3c5 Rb4 Rh2 h4 Nh5 h3 Rhh1 h2 Rg5 Re7 Rhg1 h1Q Rf8 Bb8 Rf4 Bd6 Rh4 Re8+ Bg8 Qg2 Qde4 Qf1 Be3 Qab5 Bf4 Bc2 Bh2 Qba6 Qee3 Qfc1 Qd4 Re6 Bf7 Bd1 Bg8 Re7 Be6 Re8+
q2N1BB1/1K1n4/Q1Q3R1/1p1QQ1B1/nNpq1bn1/1b2r1p1/3kp2r/3N2RR w - - 0 1 illegal: No possible last move
2b3q1/2BR1nQ1/p1pQ3b/Nn2r1p1/NR3rk1/Q3pN1R/rq6/1BK1B1N1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kd7 d4 g5 Kd2 e5 b4 c6 h4 a6 f5 g3 d6 g2 h5 Bb7 d5 Rh7 h6 Qc8 b6 Ra7 f6 Rh8 b5 Qc7 h7 Ba8 b7 Qa5+ Nc3 Ne7 f7 Qb4 b6 Qb5 Rb1 Bg7 f8Q Qa4 Bd3 Bh6 Rh3 Nc8 Rb4 Qb3 Bb1 Qc4 Bb2 e3+ Kc1 e4 Ba3 Qb3 Na4 e2 Qf3 Rd8 h8Q e1R Qe3 Rf1 Qg7+ Rf7 Qec3 e3 Bb2 Qa2 Qa3 Re8 Qdd3 Re5 Bc3 Qb3 Be1 Qa2 Nf3 g1Q Qd4 Qgf2 Ng1 Qf6 Qf4 Qd8 Qg3 Qg8 Qf4 Kd8 d7 Ke7 d8N Nd7 b8B Bb7 Bc7 Nd6 Qh2 Bc8 b7 Qf2 b8N Nb5 Nb7 Qe2 d6+ Ke6 Na5 Rb7 Qg3 Rf4 Qh2 Nb6 d7 Nc4 d8R Ncd6 Nd7 Nf7 Nf6 Qf2 Ne4 Kf5 Nd2+ Kg4 Ndf3 Rb6 Rd7 Qb2+ Kd1 Rb7 Qd2 Rb8 Qd6 Nd4 Nc4 Qa2 Na5 Rb6 Rc4 Rb2 Rb4 Nb5 Kc1 Qb3 Bc3 Ra2 Be1 Qb2+
n1k2B1b/R2rpNp1/5Rb1/Qrq2Q2/1p4KB/2N1qnRQ/3RBp2/3N3n w - - 0 1 illegal: Other
bbQ5/2N2r1R/5N1r/pB4BR/1nRpp3/1KQrnpkq/4B2r/1N1QN3 w - - 0 1 illegal: No proof kernel
Nr1Rr1r1/BR2q2k/8/3Qbp1p/2B1RQ2/5QnK/1N2p1pp/n1Nb2RB w - - 0 1 illegal: Other
3bNr1k/2B1B2n/B3q1RN/qN5K/2r4q/q1R1R2b/qq4N1/3b1QNN w - - 0 1 illegal: No possible last move
Bq6/rRp2B1R/Q5r1/n5kr/1BRb4/1n1N1B1n/3bB2N/1KN1qB1r w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 h4 b5 axb5 exf4 b6 g5 hxg5 a5 b3 a4 Rh5 a3 Rh3 Bd7 Rh1 Ba4 bxa4 Qd3 Nh3 Qd4 Ng1 Qd8 e4 Ke7 d4 h5 Kd2 f5 Kc2 a2 g4 h4 a5 c3 e5 h3 b7 h2 g6 f3 d5 f4 a6 f2 d6+ Ke6 g5 Kf5 e6 f3 a7 Bg7 d7 Nh6 e7 Rf8 e8B Rf7 Qd3+ Kg4 Nd2 Rf5 Ne2 Rc5 Qa6 Qe7 d8N Rc6 Bf7 Rc5 Nc6 Qe5 Nb4 Nc6 b8R Na5 Nd3 Qe8 Ba3 Bd4 Rb7 Qb8 Rc1 a1N+ Kb1 N1b3 g7 Re5 g6 Kg5 g8B Ng4 g7 c2+ Ka2 Re6 Bb4 Rg6 Bc4 Bb6 Bgd5 Bd4 Rg1 h1R g8B Rh4 Bgf7 Rh3 Rh1 Rh5 Re1 c1B Kb1 Nf6 Bc6 Nd5 Rh3 Nf4 Rd1 Bcb2 Nec1 Bbc3 Be2 f1Q B4b5 f2 Nf3+ Kf5 Nh2 Kg5 Bcf3 Qe1 Rd2 f1R Rc2 Bd2 Rc4 Rh1 Bf1 Rh8 Rh7 Nh3 Rg7 Rh5 Rh7 Qh8 B1e2 Re8 a8B Ree6 Bbc6 Qb8 Bg2 Rd6 Bgf1 Rdf6 Bcf3 Rd6 Qa7 Ra6 Qb6 Ra7 Qc6 Qh8 Qa6 Qb8
2r1BQ1B/KR1r1N2/1B2Rnnp/1p1b2qb/R1N1Nb2/7k/2N3bN/1q2N3 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 Ke2 Kd7 Kd3 e5 Kc4 b6 Kb5 d3 f4 b3 a4 e4 g4 b2 d6 h6 a5 d2 f6 Ke6 f5+ Ke5 f7 Kf4 a6 Kg3 g6 e3 g5 e2 a7 e1Q f6 Qe6 g7 Qe3 g6 Be6 d7 Nc6 Ka6 Bh3 Nf3 Nge7 g8N Rc8 a8N Qc5 g7 Qh5 Bb5 Nd4 Na3 b1B Ne1 Nd5 Ka7 Rc5 Bb2 Ne6 Qf3+ Kh4 Nac2 d1B Ra4+ Qg4 Rh2 Nd4 Re2 Qe7 Re6 Qe8 d8N Bd6 f8B Rc6 f7 Qg2 Nf6 Rh7 g8N Bf4 Ne4 Nf6 Bc5 Nf5 Ba1 Ne7 f8R Ba2 Rf7 Ng6 Rb7 Qg4 Nf7 Rc8 Bcd4 Qd8 Be8 b5 Nb6 Qg5 Nc4 Bg2 Bb6 Qd3 Qf2+ Kh3 Bc3 Nd7 Ngf6 Bh5 Ng4 Nf6 Nh2 Qd1 Qc5 Qb1 Qf8 Rg7 Nfe5 Rd7 Nf7 Ng4 Bh8 Nf6 Nce5 Bd5 Nc4 Rcc7 Na5 Rc5 Nc4 Rc8
kBR5/6N1/B5q1/1rnrB1p1/2B1Bb1K/p1Bb2RN/NbQR3b/q1r5 w - - 0 1 illegal: No possible last move, all moves rejected
r3Brq1/6NN/1RRq4/1bBB2RK/6B1/B1Q1n2N/b2B2n1/1qbn1rqk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 a5 b4 f5 b6 c5 b5 h5 d3 a4 b7 c4 d6 c3 b6 a3 g5 c2 g6 h3 d7 h4 g7 a2 Nd2 h2 Ba3 c1Q Be2 h3 Qb3 Qc4 Rd1 a1Q Rc1 Nc6 b8R Qb1 b7 Nge7 g8B Nb4 Bd5 Nc2 Qc3+ Qd4 Bd1 Ng6 Bc5 Qg5 d8B Ne3 Ba5 Bh6 Bab4 Bd7 Ba3 Be6 Rg8 Qd8 b8B+ Qd6 Rg7 Rf8 Bc7 Qb3 Ba5 Qbb8 Rb7 Qc8 Rb6 Nh4+ Kf2 f3 Kg3 f2 Bg4 f1R Ndf3+ Kf6+ e5+ Kg6 Qc2 Nhg2 Qc3 Nd1 Rc2 Bc1 Ng5 Bd7 Nh7 Bb5 Ba5b4 Qce6 Ba5 Qg8 Ba5b4 Qe4 Ba5 Qb4 d4 Qb1 Ba5b4 Nge3 Kh4 f4 e6 f3 e7 f2 Ng5 Kf6 e8B Ng2+ Kh5 Ba4 N1f3 Bb5 Rg1 h1Q Ba5 h2 Nh3 Qc6 Nfg5 Qd6 Be2 Kf5 Nh7 Nh4 Rg7 Qg1 Bef3 h1B Rg2 Re1 Rg6 f1N Rcg2 Qf4 Rgc6 Qd6 Bde4+ Ke6 Qc2 Nfe3 d5+ Ke5 Bd2 Qd7 d6 Rf1 Rg6 Qe7 Bg4 Bf3 Qd3 Be2 Qc2 Bec4 Bd5 Ba2 Rg5+ R1f5 d7 Qd6 Bcb4 Kd4 d8N Rf1 Qb2+ Kd3 Bf5+ Ke2 Qc3 Nb2 Ne6 Nbd1 Bb3 Kf3 Bg4+ Kg2 Bd5+ Kh2 Bc5 Nhg2 Ng7 Kh1
5Rn1/nKNN1r2/3bN2q/3q1B2/2R2Nqr/1k3b2/NN2RpQn/rBB3b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 a5 g6 a4 g7 a3 b6 h3 d6 h2 d7 a2 b5 f3 d5 f2 d6 f6 b7 h4 b6 h3 Nd2+ Kc3 Kd5 c4 e4 f5 e5 f4 e6 f3 e7 Qe8 d8R Na6 b8N Kb4 b7 c3 d7 c2 Kc6 Kc3 Nc4 Nc5 Bd3 f1N Qd2+ Kb3 Nb2 Qh5 e8N Bd6 Na6 Ra7 b8N Ne6 Bf5 Qg4 Qg2 Rh4 Nb4 Nd4+ Kb6 f2 Ne2 Nc6 Nc7 Bb7 Nf4 Ba8 Rb1 a1R Na2 Bb7 Rg1 h1Q Rf8 h2 d8N Ba8 Nd7 Bb7 Be3 c1B Nde6 Bd2 Rd1 Bc3 Re1 Bce5 Re2 Ba8 Qg3 Qd5 Qg2 h1Q Bc1 Qhh3 Rh1 Nh2 Rd1 Qe3+ Rd4 Qd2 Rc4 Bb7 Nh3 Qh6 Nhf4 Nf3 Nfd3 Bh2 Ndf4 Bg1 Bb1 Nh2 Bf5 Nf6 g8B Ba8 Bgh7 Ng8 Bb1 Bb7 Bhf5 Ba8 Na6 Rc7 Ndb8 Rf7 Nd7 Bb7 Nac7 Ba6 Ra4 Bd3 Kb7 Be4 Rd4 Bf3 Rc4 Na7+
1R1Nr3/2n1BK2/1qn2r2/3Bk1BR/1q1r2pn/NB2rb1B/BQRrN3/b7 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 Ke6 Kf4 d5 h4 f5 e4 a5 b4 d3 c4 g3 c5 a4 h5 g2 b6 d4 b5 g6 c6 a3 c7 d2 b7 a2 b6 d3 h6 Ra4 h7 Qd4 Kg5 f4 Qc2 d1Q Qb2 f3 Na3 f2 Rh5 d2 Bc4+ Qd5 Ne2 g1N Bb3 Nc6 b8N f1R b7 Bd7 c8B Nge7 Rb1 Rg8 h8B a1R Bf6 Qc4 Ba2 Nd5 Be7 Nc7 Bb3 Nb4 Nc6 Rf6 b8R Bg7 Bb7 Re8 Ba2 Bc8 Nd8+ Kd7 Bd5 Nc6 Bb3 Qb4 Ba2 Bb7 Bab3 Na8 e6+ Kc7 Ba2 Qdb3 e5 d1R Bf4 Rd2 Rc1 Bh8 Rc2 Nf3+ Kh6 Qb6 Bg5 Rad4 Kh7 Q3b4 Bdb3 Bg7 Bd5 Bf8 Kg8 Nh4 Bab3 Rf3 Ba2 Re3 Kf7 Bg7 Bc5 Nf5 e7 Nh4 e6 Bf6 Bab3 Rf1 Ba2 Na5 Bdb3 Bf3 Bd5 Nc6 Bdb3 Rh8 e8B Rf2 Bd7 Re8 e7 Bh8 Bh6 g5 Bh3 g4 Bg5 Kd7 Bd6 Nc7 Bc5 Q4a5 Bb4 Qac5 Bd5 Kd6 Bab3 Ke5 Ba2 Rg8 e8B Qcb5 Bc5 Qb4 Bce7 Bf6 Bd7 Re8 B7e6 Bg2 Rc3 R4d3 Bdc4 Ke4 Qb3 Rf1 Rc2 Ba1+ Bgf6 Rf4 Qb2 Bf3 Bcb3 Rd4 Bec4 Nf5 Bg5 Ke5 Bd5 Nh4+ Kg7 Ng2 Kg6 Rf6+ Kg7 Rh6 Kf7 Nh4 Rc8 Re6 Rb8 Rf6+
B2rBq2/qr2BB2/R6N/1p2rBR1/b1rN2K1/n1N4r/2QRqk2/2b1nB2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 a4 Kd4 g4 c5 d6 h5 a5 f5 d7 c4 a6 c3 e5 h4 d3 b3 e6 h3 e7 c2 e8B b2 g6 h2 g5 Qa5 d8R+ Bd7 a7 Na6 g7 Nf6 g8B Ng4 g6 Rh3+ Ke2 Nc5 g7 Ne5 Bh5 f3+ Kf2 f4 Ra2 Nc4 Be8 Na3 Nc3 b1R Bgf7 b6 g8B Bh6 Bd2 c1R Bh7 Rh5 Ra1 Re5 Qc2 Rc8 a8B Qa7 Bf5 Rb3 Nd5 Ba4 Bb4 b5 Rd6 Rd8 Rg6 Rc3 Rg5 Rc4 Nc3 Rce1 Rd1 Re7 Rd2 R1e5 Na2 Rb7 Nc3 Nb3 Be7 Na1 Qa2 N1c2 Qb1 Ne1 Qc2 Rd6 Nge2+ Kc5 Rhg1 h1R Rg6 Rh4 R1g5 Rh3 Bf6 Rd8 d4+ Kb6 d5 Kc5 Rg2 Bg5 d6 Bh6 d7 Bg5 Rd6 Bh6 Ra6 Bg5 Ng3 Kd4 Be7 Bh6 Nh5 Bg5 Nf6 Bh6 Ng8 Bg5 Kg1 Ke3 Rh2 Bh6 Rg5 f2+ Kh1 Rdc8 d8N f3 Nc6 Rd8 Rg4 Bf4 Nd4 Bg5 Nh6 Bf4 Be2 f1Q+ Rg1 Qf2 Bf1 Qe2 Rg5 f2 Nc6 Rg3 Rg2 Kf3 Kh2 Bc1 Nd4+ Ke3 Rd6 Rg4 Kh3 Rg3+ Kh4 Rf3 Ra6 Rg3 Rh2 Rf3 Bg2 f1Q Kg4 Rh3+ Bf3 Qd3 Rd2 Qf2 Be2 Qf1 Bc8 Qf6 Bf5 Kf2 Bf1+ Qe2+ Kf4 Nf3 Kg4 Qd6 Bf6 Qf8 Be7 Ne1+
1r3r2/1R1r1Nkn/NB1bB3/5qnR/2B3QB/N2nR1rb/B1pqq3/K2B4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 h5 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 h4 Kb2 f3 e5 f2 d5 f4 g6+ Kg7 b6 a4 b5 h3 e6 h2 b7 f3 d6 Qd7 e7 Ra7 e8B Nc6 b8N Nb4 b6 Be7 b7 Nf6 g5 Qf5 d7 Bd6 d8B Nh7 Ra3 c3+ Ka1 c2 Na6 c4 b8R c3 Nh3 Rd7 Bb6 Nd3 Rb7 Rf8 Bd2 c1Q Be1 c2 Bf7 Rh8 Be2 f1R Be6 Qd2 Bh4 f2 Bh5 Rf8 Qg4 Rg1 Rc3 Rg3 Na3 Nb4 Re3 Nd3 Qf4 f1Q+ Bd1 Qfe2 Qg4 Nc5 Bc4 Ne6 Ba2 Kg8 g7 Kf7 g8B+ Kg7 g6 Neg5 Re1 h1N Bge6 Nf2 Rh1 Nd3 Rh2 Kf6 g7 Kg6 g8B Kg7 Nb5 a3 Bac4 a2 Na3 Qef3 Ng1 Qfg2 Nf3 Qge2 Ne5 Nc1 Kb2 a1R Nf7 Nd3+ Kb3 Rb1+ Ka2 Rb2+ Ka1 Rg2 Bg3 Rb4 Rh5 Rg1 Bh4 Rg3 Ba2 Qc5 Bec4 Nf6 Ne5 Nc1 Bd8 Rdf7 Rb5 Bd7 Qd4 Bh3 Qg4 Rd7 Bge6 Nh7 Nf7 Nd3 Rb8 Rbb7 Bc7 Qf5 Bb6 Rbc7 Rb7 Rcc8 Rc7 Rce8 Rb7 Rb8
q2n1Qn1/2Nb2q1/1rNRNnp1/1bB2Rq1/k2B4/5r2/1bR2KBn/3R1RR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 c5 b4 f5 e4 a5 b6 a4 h5 c4 d6 Kc6 b7 Kb5 d5 g6 d7 g3 e5 f3 d6 f4 e6 g2 h6 a3 e7 a2 e8R Rh7 Ba3 Ra7 Nh3 g1Q Ng5 Re7+ Ne6 Ra5 h7 Ra6 h8B Nc6 b8N Bg7 Rf8 Bb2 Bd4 Qg5 Rg1 Rb6 Kf2 Rf7 Bg2 c3 Qf1+ Ka4 b5 c2 Bac5 c1N Na3 Nb3 Rd1 Qdf6 d8R a1Q d7 Nd2 Rc1 Qg7 Rc2 Rf6 Rf7 Rf5 Rdf8 Qa2 d8R Bd7 Rf6 Qd5 R8f7 Qe4 Rdf8 Nd8 Nc6 Rb8 b6 Qd5 b7 Ne4+ Ke1 f2+ Ke2 Qa2 Nb5 Qd5 Nbc7 f3+ Kd3 Rf4 Ke3 Qa2 Rf5 Nef6 Rd5 Qa1 Rd6 Qa2 Qc1 f1B Kf2 Bb5 Qf1 Ne8 Rf5 Nef6 Ke3 f2 Rf7 Ra8 b8R Ra6 Rc8 Rb6 Rd2 Qd5 Rd1 Nb7 Qe2 Qa2 Qf3 f1N+ Kf2 Nd8 Rf8 Nh2 Rf7 Re4 Rf8 Re3 Qf4 Qh5 Qh6 Qg5 Rf7 Qh8 Qf8 Rf3+ Ke1 Qc4 Re5 Qh7 Ne8 Rf2 Na7 Ka5 Ba3 Qd3 Rc2 Nh5 N8c7 Qg7 Bac5 Qf3 Rf6 Qa8 Nc6+ Ka4 Rf4 Be8 Ref5 Bd7 Rf3 Nhf6 R3f4 Rd2 Rff1 Rd3 Kf2 Rf3+
rRR1R3/nb1b4/3b2R1/1NRb1nbp/N1BnR2N/6r1/2qQ2B1/1KBb2k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 h5 g4 f5 e4 a5 b4 c5 b6 a4 b7 h3 b5 f3 b6 f2 g5 h2 g6 a3 g7 a2 Ba3 f4 Qd2 f3 Bc1 c4 Nc3 Qf6 Na4 c3 Bg2 Nc6 b8N f1B b7 f2 Nf3 Be2 Rg1 h1B Nh4 f1B Na6 Nge7 g8B Nf5 b8R Bd7 Nc7 Na7 Rb5 Bg4 Rc5 Ba6 Bf7 Rg8 e5+ Ke7 e6 Kd6 e7 Bb7 e8R Bd1+ Kd3 c2 Rge1 Nh6 R1e4 Nf5 Rb1 a1N Rb6+ Bbc6 Kc3 Rg3+ Kb2 Nb3 Rc8 Qe5 Rbb8 Bb7 Nb5+ Ke7 d6+ Kf6 Bc4 Be7 Rf4 Kg5 Ka2 Qe3 d5 Qc3 Re8 Nbd4 Rg4+ Kf6 Rg6+ Ke5 Rec8 Be6 d7 Bd6 d8R Bd7 Bb2 c1B Kb1 Ne3 Re8+ Kf4 Qe2 Bd2 Bc1 Nef5 Re7 Rg4 Ree6 Kg3 Re4 Bg5 Qd2 Kh2 Rce8 Rg3 Rbc8 Be5 d6 Kg1 Rb8 Bdc8 d7 Bd6 d8R Bd7 Rdc8 Bd5 Bgf1 Bhf3 Bg2 Bb7 Rf4 Bfd5 Rfe4 Qc2+
bQ1r1k1B/2nr1n2/B1qNqb2/NR1NN3/1R1rq3/3B1np1/3p2NR/2K1N3 w - - 0 1 illegal: No possible last move, all moves rejected
1NKNq2b/B4R1N/3p1Rqn/4B2b/k2nBQRr/B5p1/Bn2B3/r2r2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 Kf3 f5 b4 a5 e4 a4 c4 a3 h4 a2 h6 d3 h7 d6 e5 Kd7 h5 d2 e6+ Kc7 h6 Kb6 e7 Nc6 e8B Na7 c5+ Kb7 b6 Be7 b5 Rb8 c6+ Ka8 c7 Kb7 Bg6 Bf8 Rh4 Bg7 Nh3 Be6 c8B+ Ka8 Na3 Bb2 Qa4 d1R Rg4 Bd4 Be2 Rb7 Nc4 Bg1 Na5 Nc6 Ba3 Ra7 Nb7 Qe8 Nd8 Bf7 b7+ Kb8 Qb4 Kc7 b8N Kb6 Be6 Ra5 Rc1 a1B Ba2 Ra8 Qc4 Ka5 b6 Ra7 b7 Nd4+ Kg2 f3+ Kg3 f2 Rc2 Nb3 Qf4 f1Q Rc7 Nd4 Re7 Ka4 Re6 Ra6 Rf6 Bc4 Bf7 Bc3 Bd5 Bb3 Be4 Bf7 Nd7 Ba1 b8B Bh5 Ba7 Bb2 Nb8 Bc3 Rh4 g4 Ng5 Ba1 Qf3 Qg6 Kf4 g3 Rg4 Qe1 Rf7 Rc6 Rf8 Rcc1 B2d3 Qe6 Bdc4 Nc2 Bed3 Bg6 Rf7 Bc3 Bd5 Ra1 Bb7 Qf6 Bdc4 Qe8 Be2 Qg7 Be4 Bf6 Nge6 Nd4 Nf8 Be5+ Kg5 f4 Qe3 f3 Qd2 Nb5 Qf4 Bh5+ Kf5 f2 Bb6 f1N Ba7 Ne7+ Ke6 Nd2 Bg2+ Nc4 Be4 Rg8 h8B Bg6 h7 Nb2 B7c5 Qh6 Ba7 Qg5 Bg7 Bed4 h8R Nf5+ Re7 Qh5 Rh6 Rh8 Bf6 Qf7+ Kd7 Qe8+ Kc8 Rh7 Bg5 Bh8 Bf6 Nbd4 Be5 Qg5 Rb7 Bf7 Rf6 Rh4 Nh7 Bh5 Re7 Nh6 Ref7 Qg6
qB2bNr1/1BN1b1n1/1p3KBR/4Q1n1/3N2rB/1b1RRB2/rk4pb/2n3B1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kc5 h4 f5 a4 g5 d4+ Kb6 d6 Ka5 d7 c5 d5 b6 d6 f3 h6 b3 h7 Kb4 h5 f4 a5 g4 h6 f2 a6 f3 a7 g3 Na3 Kc3 Qd5 b2 Be2 b1R Be3 f1B Nb5+ Kb2 Nc7 f2 Bf3 c4 Ra3 g2 Ne2 c3 Nd4 Ne7 Kf6 c2 e5 c1B e6 Rg8 h8N Nf5+ e7 Na6 h7 Ng7 Rh6 Nb4 Ng6 Bb5 h8B f1N Qe5 Nh2 Bg1 Bf4 Re3 Nd3 Bb7 Qe8 d8B Be6 d7 Nc1 Bf3 Ra1 Bb7 Rb8 a8B Bb3 Bf3 Bg3 Bab7 Rc8 Nf4 Ra2 Nfe6 Qh5 e8B Rb8 Bfd5 Nf3 Bg6 Ng5 Bf3 Bh2 Be7 Qh4 d8R Qe4 Rd7 B5a4 Bd8 Bc5 Nf8 Ba3 Rd6 Be8 Ke7 Ra8 Nde6+ Kb1 Qd5 Bg3 Bc8 Bb4 Nb5 Nh5 Be5 Nh3 Qc5 R8a4 Rdd3 Bf4 Bb8 Qa8 Nec7 Kb2 Bcb7 Bh2 Qd6 Ba3 Qc5 Rg4 Nd4 Bc2 Ke6 Bb3+ Qd5 Bad6 Bh4 Ng7+ Kf6 Ng5 Qe5 Be7+
1q3Q2/N2N2bb/1BBN2n1/3R1b1p/Np3bqn/2R4N/4N2k/R1KnB1rr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 g4 c5 f4 b5 a4 e5 g5 h5 g6 e4 a5 b3 f6 b2 a6 h3 f5 b4 f7 c4 a7 h2 g7 Na6 f6 Bb7 Nh3 Qc7 Qf3 Qc5 Bg2 Ne7 g8N Qc7 Nh6 Nc5 Nc3 b1B Rd1 h1Q Ne2 Bg7 f8N Nd3 f7 Qg1 Nd7 Ng6 f8R Nb2 Rc8 Qb8 Qf2 Rg8 Nf7+ Ke7 d6+ Ke6 Bf3 Kf5 d5 Qg4 Rc5 Bc8 Rc6 Nd3 Bb2 Bc2 Bc3 Nb2 Kc1 e3 Be1 c3 Rd3 Bb1 Rd2 c2 Rc3 Qd4 Bh1+ Kg4 Qf6 Qf4 Qe7 Nd1 Qf8 Ba6 Bg2 Bd3 Bh1 Bf5 Rdd3 Qb6 Rd4 Rd8 a8N Qb8 Nab6 Rc8 Na4 Rc4 Ng3 Kh4 Rd2 Qg4 Rdd3 Rf4 Bg2 Rf1 Ne2+ Nf2 Rd2 Rh1 Nh6 Ne7 Ne5 Qf3 d7 Bg6 d8N Bh8 d6 Bh7 Nd4 Kg3 d7 e2 N8c6 Kh2 d8B Nd1 Bf2 e1N Nhf7 Rg5 Ne2 Bg7 Rdd3 Ng6 Nd7 Rg3 Nd6 Qg4 Bd5 Rgg1 Bdb6 Ng2 Be1 N2h4 Be4 Ba2 Rd2 Be6 Na7 Bf5 Rdd3 Rf1 Bc6 Rfg1 Kd2 c1B+ Kc2 Be6 Rd5 Bf4 Kb1 Bg3 Kc2 Bf5+ Kc1 Bf4+
N4B2/3bb3/NqN2Rnp/1R6/5Nrn/RNn1K2B/Qrk1pB1r/3Nr2q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 g4 Kd6 d4 e5 b4 c5 f4 a5 g5 h3 b6 e3 g6 h2 b5 h6 b7 e4 g7 c4 b6 a4 f5 c3 f6 a3 f7 c2 Qd2 a2 Nc3 Ra7 Nd1 Qd7 Nf3 Qd8 Bh3 Bg4 Rf1 Nc6 b8N h1N b7 Qb6 Nd7 Be7 f8B Nb4 b8N Rb7 Na6 Rb8 Ba3 c1Q Qc2 Be6 Nd2 Rh7 Rb1 a1R Rf6 Ra2 Nb3 Rb2 Qd2 Rc2 Bb2 Na2 Bc3 Rb2 Qc2 Rc8 Be1 Rd8 Bf2 Ng3+ Ke1 Nf5 Ke2 Nh4 Ra1 Qa5 Nb6 Rh8 Na8 Qb6 Rb1 Rc8 Qd2 Rcc2 Ra1 Nb4 Ra3 Na2 Nc3 Qh1 Nd1 Kd7 d6 Kc6 d5+ Kb5 d7 Kc4 d8N Bd7 d6 Rh7 Bf1 Rh8 Ne6 Nc3+ Ke1+ e2 Nf4 Bg4 d7 Rh7 d8N Bd7 Bd4 Rh8 Kf2 e3+ Kg3 Rh7 Bh3 e1R Qg2 Rd2 Nc6 Rf2 Bc5 e2 Qd5+ Kb5 Qd2 Rh2 Bf2 Kc4 Qc2 Rh8 Qb1 Rh7 Qa2 Rh8 Nd5 Kd3 Kf4 Ng2+ Kf3 Kc2 Nf4 Rh7 Bc5 Nh4+ Ke3 Bd8 Bd4 Ne7 g8R Rg7 Bc5 Rg4 Rg5 Neg6 Bd4 Be7 Rb5 Ng2+ Kf3 Qc7 Bf2 N2h4+ Ke3 Qb6+
1Knr2N1/4rR2/1k4pq/bb4B1/B1pn3b/1q2N2Q/bN5R/1Rq1RRRB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 c5 d4 Kc7 b4 a5 e4 f5 e5 c4 h5 g6 e6 f3 Kg3 f2 Kf4 a4 Ke5 g3 d6+ Kb6 e7 a3 e8B g2 d5 f4 h6 f3 d7 a2 d6 Be7 h7 Bg5 Nc3 Bh6 Qd3 Ra6 Bg5 Kb7 b6 Bf8 b5 Nh6 Na4 Ra8 Nb2 Ra4 Nh3 g1B Re1 a1Q Bg2 f1B Nf4 Qd1 Nd5 f2 Qh3 Qd2 Ne3+ Nc6+ Ke6 Bh2 Rg1 Qc3 Bh1 Rg8 h8R Nf5 Kd5 Qdf6 d8R Ncd4 d7 Bg3 Rh7 Qd2 Rf7 Bd3 Ref1 Nd6 Re1 Kb8 b7 Kc7 b8N f1Q Nc6 Kb6 Ne7 Ba6 Rc8 Qd1 d8R Qb3 Bc6 Rh8 Ng8 Bh4 Rdd7 Be7 Rcf8 Nc8 Rh7 Bd6 Rdf7 Bb4 Rh5 Q6f4 Rh6 Ka5 b6 Bb1 b7 Ba2 b8R Ra3 Ba4 Bb5 Rhh7 Ka6 Rh5 Ba5 Rbb7 Qe2 Rhh7 Qec2 Rh6 Qfh2 Rff1 Qc1 R8f7 Qc7 Rh5 Qe7 Rhh7 Qf8 Rh5 Qh6 Kc5 Nb6 Kd6 Rh7 Kc7 Nc8+ Kb8 Rh8 R7f2 Rh7 Rbf7 Kb6 Rh2 Rg7 R7f5 Re7 Rf7 Qcc3 Rb1 Qc1 Re2 Qb4 Ree1 Rd3 Qd7 Qb3 Qf5 Bf2 Rh2 Bh4 Qd7 Nc2 Qg4 Rd8 Qh3 Nd4
1N1r1R1B/1bBBKp2/3bB2r/1nb5/2BB1Nqn/q3pk1b/1R2qN2/3R2Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1b2qNQn/2pN1B2/4B2R/1R3qn1/Rn3Rb1/1Kp3r1/1br1RN2/bk2B2R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 d4 Kd7 Kd2 Kd6 Kc3 Kd5 g4 Ke4 f4 e5 b4 h5 b6 a5 b5 h3 f6 a4 g5 h2 b7 a3 b6 a2 d5 h4 f7 h3 f5 Qe8 f6 Bg4 g6 Bd6 f8R Rh5 f7 Ra3+ Qb3 Na6 b8R Ne7 b7 Bc5 g7 Ng6 g8B Nh8 d6 Ba7 d7 Nb4 d8R Rh7 Rbc8 Bb8 Nd2+ Ke3 Bd3 e4 Rd6 Rh6 Rb6 Rc6 Ngf3 Rc5 Bb1 Ke2 Rb5 e3 Ne4 Rc6 Nf2 Rc5 Rf1 h1N Bg6 h2 Ne5 Ng3 Nd7 h1Q Bd2 Qh5 Rh1 Qf5 Be1 Ne4+ Kb2 Ng5 Rb6 Ba7 b8R Rc6 R8b7 Bb8 Bh5 Rc5 Rh6 Rc6 Rb5 Rc5 Qc3 Rc6 Qg7 Rc3 Nh3 Kd3 Qg6 e2 Nf2+ Kd4 Qh7 Rc2+ Ka3 Rg6 Ka4 c3 Kb3 Ke3 Rb1 a1B Rb2 Ba7 Ra8 Bb8 Nh3 Kd3 Ra4 Re6 Qg7 Re3 Bg6 Qfe4 Bf5 Rg3 Be6 Qe5 Bf2 Kd2 Be1+ Kc1 Nf2 Qf5 Bh7 Nc6 Bg6 Nb4 Rba2 Kb1 Qg8 Qe7 Rc8 Qe8 f8N Nd3 Bgf7 Nb4 Bd2+ e1B Rd8 Na6 Rf4 Nb4 Ra4 Qe7 Re8 Qd8 Re7 Qe8 Nd1 Bf2 Be1 Be3 Nf2 Bd2 Bc4 Bc1 Re2 Ba3 Bce6 B3b2
4r1b1/k1B1n1N1/1RBB2r1/2B1B1q1/1p2rnR1/np5K/1p1Q3b/b1BR1NN1 w - - 0 1 illegal: No proof kernel
1r6/N2R1p1Q/b3qNRN/n3rBr1/KN1B3k/4qpN1/np1N2B1/4R1bq w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 e4 Kf6 d4 c5 Kd2 b5 Kc2 g5 Kb3 f3 a4 g4 a5 g3 a6 g2 d6 Ne7 h6 Nec6 d7 Be7 a7 Rg8 d5 Kg6 d6 Kh5 h7 Qe8 h8N Bg5 d8N Be7 d7 Rg7 e5 Qg8 e6 Rg6 Bb2 Rf6 Bd4 Rf5 Qd3 Qg7 Ng6 Ne5 Nd2 Qf6 Ne2 g1R Ra6 Rg4 Bg2 Bd6 e7 Nec6 e8N Bh2 Re1 Re5 Ne7 Bg1 Ng8 Rgg5 Nh6 Bb7 Rb6 Na6 Qh7 Rb8 a8B Qf5 Ne6 Bc8 N6c7 Qe6+ Nd5 Bb7 d8N c4+ Kc2 c3 Kb3 Bc8 Rb7 c2 Rd7 c1Q Bb7 Ne7 Nc6 Qc5 Na7 Nc6 Ng8+ Kg4 h5 Kh4 h6 Qb6 Ng3 Na5+ Ka2 b3+ Ka3 b2 Nef6 b1Q Nb4 Qd1 Be4 Bb7 Bf5 Bc8 Nc2 b4+ Ka4 b3 Nb4 Qc1 Qh8 b2 h7 Qbc5 Nh6 Q5c3 Qg7 Qe3 h8R Bb7 Rg8 Qa1+ Na2 Nb4 Qh7 Ba6 Rg6 Qb1 Nc1 Na2 Nd3 Qc1 Nb4 Bf2 Re2 Qh1 Re1 Bg1
8/1B2R2B/1N1Rn1BQ/b1Bbb2N/1b4K1/p1p3r1/RNB3np/1qBrk1b1 w - - 0 1 illegal: No proof kernel
1N4k1/3rR1qp/n1RN2r1/2N1N2b/q1pK1N1B/R1B1Q1nB/1p1n1n2/bN6 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 c5 f4 e5 d4 b5 g4 c4 a4 e4 d6 h3 d7 b3 a5 b2 g5 h2 f6 b4 g6+ Ke6 f7 b3 g7 Na6 d5+ Kf6 d6 Bb7 f5 Qe7 d8B Nh6 g8N+ Kg7 d7 Qe6 f6+ Kg6 Qd4 Nb8 a6 Ba3 f8N+ Kf7 a7 Bc6 Nf3 Qd6 Bh3 Qe5 Re1 h1Q Ng6 Na6 N8e7 Rg8 Nf4 Rg6 Nc8 Kg8 Nd6 Rc8 a8R Rc7 Re2 Qd1 Rc8 Qc2 Bd2 Nf5+ Kf2 Bd5 Qe3 Ng3 Bc3 Bf7 Be7+ Be8 d8N Rd7 Nc6 Bc5 Ra2 Bd4 Nb8 Qg5 Ra5 Qh6 Ne5 Qg7 Rc6 Bf7 Na3 b1N Ra4 Nd2 Nb1 Be8 Ra3 Qa2 Ra5 Qa4 f7+ Kh8 f8N Kg8 Bh4 Bf7 Bb4 Ba1 N8e6 b2 Nc5 Be8 Bc3 Bf7 Qd3 Be8 Ke3 Bf7 Kd4 e3 Re1 e2 Qe3 Be8 Rf1 e1N Rg1 Nd3 Re1 Qb3 Ra3 Nf2 Qd3 Qa4 Re4 Qe7 Qe3 Bf7 Ng4 Qf8 Re7 Qg7+ Ne5 Bd5 Ndb7 Bf3+ Nd6 Bh5
7B/pn1R2R1/p1Q1NBKB/R2p1N1r/B4Bp1/1r1k1Nq1/2bbr2n/3n3B w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Rh6 d4 cxd4 a4 Rh7 a5 Rh8 a6 bxa6 Ke2 Kf7 Kd3 Kf6 Ke4 e5 f4 g5 b4 d6 c4 g4 h4 d3 b5 d2 b6 Be7 b7 Nh6 c5 Nd7 b8R Qe8 c6 Nb6 c7 Qd8 Nc3 Bb7+ Nd5+ Kf7 c8B Rh7 f6 Nf5 h6 Kg6 h5+ Kf7 Bd7 Nc8 Qa4 d1R Bg2 Qb6 Qc6 Qf2 Nf3 Nd4 f5 Qg3 Ne3 Ne2 Ra5 Rd3 Rd1 Rb3 Bh1 Rh8 h7 Nc3+ Kd3 Bf8 h6 e4+ Kd4 Bg7 Bd2 Re8 h8B Re6 h7 Bh6 Bc1 Re5 Rd2 Nd1 Bg7 Rc5 h8B Rc2 Rd3 Re2 Bd2 Ne7 Rg8 Nc8 Ng2 e3 Ke4 Rb8 Ngh4 Ba8 Bc1 R8b5 Rd5 Re1 Bd2 e2 Bf4 Bg5 Qb6 Rc5 Ba4 Bc6 Bh6 Bb5 Qc6 Bd3+ Kd4 Bc2 Rg7+ Kf8 f7 Ke7 f6+ Ke6 f8B Rcb5 Be5 Bd2 f7 Rc5 Be7 Rcb5 Ng2 Kf5 f8N Rc5 Ne6 Rcb5 Kc4 Ke4 Beg5 Rb6 Bef6 R6b5 Rd3+ Rd5 Qb5 Rf5 Ngh4 Rd5 Bf4 Rh5 Rc3 d5+ Kc5 Rf1 Qc6 e1N Nf5 Rf2 Rd7 Re2 Rg7 Ne7 Kd6 Nc8+ Kd7 Nd6 Ke7 Nb7 Kf7 Nf2 Kg6 Nd1 Rcc5 Kd3 Rd7 Ng2 Rc4 Nge3 Rb4 Nf1 Rb6 Nd8 Rbb7 Nh2 Rbc7 Nb7 Rg7 Nd6 Rcd7 Nb7
8/R2q4/p2pBBpN/6rk/rKp1N1p1/nN1RQ1rN/B1Nn1N1R/bb6 w - - 0 1 illegal: No proof kernel
2NR4/1Nr1bN2/qpNbp1n1/1n6/1rQ2q2/NKR4Q/B1B2rNr/1N5k w - - 0 1 legal: proof: g4 f5 f4 d5 b4 a5 c4 axb4 cxd5 h6 e4 Ra3 g5 Qd6 g6 Rh3 Bb2 Qd8 Bf6 Be6 Bg5 Bf7 gxf7+ Kd7 exf5 hxg5 f6 Ra3 f5 Ra8 h4 Kd6 a4 Ke5 d4+ Ke4 Kd2 c5 Kc2 g6 h5 c4 h6 g4 d6 g3 h7 c3 a5 g2 a6 b6 d5 e6 d7 g5 d6 g4 a7 g3 Qc1 Qc7 d8N Qe7 d7 Qd6 Nc6 Qe5 d8N Be7 f8N Qb5 f7 Bc5 f6 Bd4 Ra3 Ne7 Nb7 Na6 Bc4 Bc5 Kb3 c2 Ng6 Nc7 f8Q Bd6 f7 Qa6 Nge5 Nb5 Ngf3 g1Q Nh4 g2 Qfh6 Qf1 f8N g1B Nfg6 Bgc5 Ng2 Qf4 Qh3 Rhf8 Qf1 c1R h8N Rc2 Rg1 Rac8 a8B Rc7 Nhf7 Rf2 Ra2 Rh8 Rc2 Rh6 Rc3 Rh7 N6h4 Ng6 Nf5 Be7 Qc1 Bcd6 Rd1 Rh4 Be2 Rh8 Nc4 Rh6 Nca3 Rh5 Qh1 Rh2 Bd3+ Kf3 Bc2+ Qe3 Kc4 b3 Rdd3 b2 Kb3 Bc5 Rd8 Bcd6 Nfd4+ Kg3 Na7 Qf3 Nc8 Kh3 Ne3 Qf4 Qcf1+ Kg3 Qc4 Kh3 Nc6 Kg3 Qhd5 Kh3 Qdd3 Kg3 Ng4+ Kg2 Qh3+ Kh1 Ne3 Rg2 Nd2 Rf2 Ng2 b1R+ Ka2 Re1 Nb1 Rd1 Kb3 Rd4 Qc5 Qg4 Ka2 Bf6 Nca5 Bf4 Nbd6 Kg1 Bd5 Kh1 Nc6 Ra4 Nb7 Bd6 Kb2 Bh4 Ba2 Qf4 Qc4 Bhe7 Kb3 Rb4+
2BNQ3/1nb1Bn2/p7/1r2N2Q/1q1B4/r1R1p1pr/2R1B1KB/2qqkB1B w - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 axb5 c5 fxg5 Be6 g6 cxd4 e4 d3 g5 d4 Qg4 Bd5 exd5 hxg4 Kf2 Kd7 c4 Kd6 b4 Ke5 h4 Ke4 b6 e5 g7 f5 c5 a6 b7 d2 c6 d1R d6 f4 b5 f3 c7 d3 c8B d2 h5 Nd7 b8B Rh7 b6 Re1 g6 d1Q b7 Kd4 h6 e4 Rh2 Qa5 Na3 Kc3 Be3 Qb5 Bd4+ Kd2 Nc4+ Kc2 Na5 Kd2 Rc1 Ra7 Rc3 Qda4 Nc6 Qab4 Nd8 Rh8 h7 Nc5 d7 Nh6 g8B Q5c4 g7 Rc1 Bd5 Bd6 g8B Ra1 Bgf7 Ra4 Bh5 Nf7 Bc7 Bf4 b8Q Rb7 Bc6 Rb5 Bce5 Rg8 h8Q Ra3 Qh6 Rh8 Rg2 Bg5 Bh2 e3+ Kg3+ f2 Nf3+ Kd1 Ne5 Ke1 Bf3 Qcb3 B3e2 Qd1 Bg6 Qb2 Qh5 Qb4 Be4 Be7 Qa8 Bd6 Qc6 Bc7 Qe6 Nd3 Qe8 Nc5 Qh7 Qc4 B2f3 Qa1 Bfd3 f1Q Rgc2 Qe2 Beb7 Rg8 Qh5 Qed1 Bf1 Qac1 B3e2 Qb4 Bh1 Nb7 Kg2 Rg5 Ne6 Rf5 d8B Rf3 Be7 Rh3 Nd8 g3
kbq4B/1r2B2b/2R3n1/2nB1rqr/qnKq4/N1B1Q3/rBQB4/B4RN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 h4 a5 e4 f5 Ke2 c5 Kd3 Kc7 e5 Kb7 b6 g5 h5 f3 d6 c4+ Kc3 a4 d4 f2 e6 a3 b5 g3 d5 g2 e7 a2 e8Q f4 d7 g4 d6 f3 h6 g3 h7 Ne7 Kb4 c3 Qe2 c2 Rh5 Nbc6+ Kc4 Nb4 Rh6 Ng6 Bb2 c1N Q8e3 Nb3 Na3 Nc5 Qc2 Rb8 Bd3 Ka8 Be4+ Rb7 Rf1 a1R Bd5 Ra2 Ba1 Qc7 d8B Bf5 d7 Bd6 Bdf6 Qc8 d8B Bb8 Bfb2 Be4 Be7 Bf5 Rc1 f1R Bc3 f2 Bab2 Rf8 h8B Be4 Bd2 Rf5 Bbc3 Rh5 Re1 Nf8 Rc6 Bh7 Rc1 Ng6 Ba1 Rd1 Bdc3 Rd3 Bcb2 f1Q Re1 Qff8 Rf1 Rd2 Bbc3 Rf2 Bd2 Rff5 Bhb2 Rd7 b7+ Ka7 Bdc3 Qfd8 Bd2 Qa5 Bh8 Qa4 Bhb2 Bf4 b8B+ Ka8 B8e5 Rb7 Bec3 Bc7 b6 Bb8 Nf3 g1Q Bh8 Qh2 Ng1 Qf2 Bbc3 g2 Bab2 Rc7 b7+ Ka7 Qed3 Nf4 Ne2 g1Q Qe4 Qg5 Ng1 Qe3 Qd4 Qe5 Qe3 Ng6 Ba1 Rd7 Bcb2 Bd6 b8B+ Ka8 Rf3 Qg7 Rf1 Be5 Bbd6 Rb7 Bf6 Bf4 Bde7 Bb8 Bfc3 Qd4+
1b2nR1Q/BNk1nB2/B2r2B1/2Nq4/1b1r3p/KB1qrbB1/Rn1B3Q/7q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 b4 Kd7 g4 h5 c4 f5 Kc2 a5 Kb3 d3 e4 h4 e5 d4 b6 f3 g6 a4+ Ka3 f4 e6+ Kc6 c5 d2 g5 d3 e7 f2 e8B+ Qd7 g7 f3 b5+ Kb7 g6 Na6 Ne2 Qd4 Nec3 Qe4 Qe2 d1R Nd2 Qd4 Nce4 Qe5 Nd6+ Kb8 c6 Ne7 g8B Bg4 g7 Qd5 b7 Kc7 N2e4 d2 Bgf7 Rh6 g8B Re1 Bg6 d1N Bd2 Nb2 Nc5 Rd8 Ra2 Rd7 Qe5 Re3+ Bfd3 f1Q Bef7 f2 Qh2 Bf3 b8B+ Kd8 b6 Nc7 b7 Ne8 Ba7 Kc7 Rg1 Qe2 Rg5 f1Q Rf5 Qh1 b8B+ Kd8 Kb4 a3 Ba6 Qed3 Ndb7+ Kc8 Bg3 Rd6 Be6+ Kc7 B8f7 Rh5 Rf4 Rg5 Rf5 Rg4+ Rf4 Qg5 Bb3 Qgd5 Ra1 a2 Ka3 Be4 Rf2 Bf3 Raf1 a1B Re2 Kc8 c7 Rd4 Rg2 Na4 Rgf2 Bc3 Ra1 Nb2 Ra2 Ba5 Ne4 Kd7 Nec5+ Kc6 c8Q+ Bc7 Qd8 Bb8 Rf1 Ng8 Qf6 Ne7 Qh8 Kc7 Qe5 Be4 Na4 Bg7 Nac5 Rb4 Bg8 Bg2 Rf4 Bf3 Rf8 Bh8 Qh5 Bc3 Qh8 Rd4 B8f7 Bb4+
n2R2B1/pQ2b3/1Q1rQbnk/1bKb2b1/1BQQqQ2/5N1b/b5Q1/1r1N1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 f5 h4 Kf7 b4 Kg6 c4 d5 e4 f4 c5 f3 b6 d3 Ke3 g3 Kd4 f2 b5 d2 c6 g2 e6 Ba3 c7 Ba6 c8Q Be7 e5 Nd7 h5+ Kh6 b7 g5 b8Q g4 b6 g3 b7 Rh7 Qe2 Qe8 Ba3 d1B Qec4 Bb5 Bb4 Nb6 Nf3 g1B Nc3 Bb3 Rd1 g2 Qbc7 Bf6 b8Q Ba2 Kc5 d4 e7 d3 e6 d2 Qc8b7 Rg7 Qe5 Rg6 Qef4+ Bg5 Qd8 Rb8 Qdd6 Na8 Qdb6 Rf6 Be2 Qg6 e8Q Ne7 Qec6 Qe4 Bd3 Ng6 e7 Re6 e8Q Rd6 Qee6 Bh2 Bc2 f1B Bb3 Bg3 Qc6d5 g1B+ Qdd4 Bh4 Qf2 Bh2 Qg2 Bd3 Rdf1 d1B Rhg1 B1c2 Nd1 B2g3 Rh1 Be1 Rh3 Bc3 Rh2 Bf6 Rhh1 Be7 Rhg1 Kh7 h6 Bf6 Rh1 Bhg5 Rh2 Bc6 Rh3 Bd5 Rh4 Kh8 h7 Kg7 Rg4 Kh6 Rg3 Rg8 Rg4 Rg7 h8Q+ Rh7 Qhd8 Rh8 Qdd7 Rb8 Qa4 Be2 Qd4 Ba6 Qab5 Bcb1 Qbc4 Bb5 Rg3 Qe3 Rg4 Bf5 Rg3 Qe4 Rh3+ Kg7 Rh8 Bh3 Rd8 Kh6 Ba4 Ba6 Be8 Bb5 Bf7 Be8 Bg8 Bb5 Qbc8 Rb7 Qcc6 Rb8 Qcb7 Rc8+ Q7c7 Ba6 Qcc2 Bc6 Qcb7 Be2 Qcd3 Bcd5+ Kb5 Rc4 Qb3 Rc1+ Qbd3 Ra1 Kc5 Rb1 Qc2 Ba6 Qcc4 Bb5
4B1B1/1r5r/1p1n1n1r/NK2Bb2/BQN2RQ1/BBrRq3/7r/b2b1Brk w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kd3 c5 Kc4 f5 a4 h5 g4 b3 e4 b2 g6 b6 a5 f3 a6 f2 g7 h4 g5 h3 g6 h2 a7 f4 Nd2 b1R Ra4 f3 Ne2 Rh6 Ba3 Qe8 Nc1 Rb2 Ncb3 Bf5 Na5 Nf6 g8B Nbd7 g7 Rb8 a8B Rb7 Qe1 Rc2+ Kb5 Rc3 Rg1 h1R Rg3 R1h2 Bf7 Rh7 g8B Bg7 Qb1 Qe6 Qb4 Ne5 Rh3 Nc4 e5+ Kd7 d6 Bh8 Bd3 f1R d5 Rg1 Bf1 f2 Rf3 Rg6 Rd3 Rgh6 Be8+ Kd8 d7 Kc7 Bef7 Qe7 e6 Kd6 d8Q+ Ke5 d6 Kf4 d7 Kg4 Rd6 Kg3 Qc8 Bg7 d8B Bh8 Bd3 Kg2 Bf1+ Kh1 Rd3 Bg7 Bc7 Nd6+ Ka6 Qe8 e7 Bh8 Bb3 c4 Qe6 Bg7 Qe2 Bh8 Qg4 Bg7 Be2 f1B Bb8 Bg2 Bf1 Bf3 Bc7 Bd1 Bb8 Qf8 e8B Qe7 Bc7 Qe3 Bb8 Rc1 Bc7 c3 Ndc4 c2 Bb8 Nde4 Kb5 Rb1 Be5 c1R Rd7 Rc3 Rd3 Rd7 Bad5 Rb7 Bdc6 Ra1 Bcd7 Nd6+ Ka6 Qc1 Qb5 R2h5 Bf4 Nfe4 Bh3 Qe3 Nb2 Rcc1 Rc4 Rc2 Qb4 Be2 Bda4 Rg1 Bf1 Bd1 Bh2 Bc3 Be5 Nf6 Rf4 Rhh2 Nbc4 Bb2 Beb5 Ba1 Be8 Nde4 Kb5 Rc1 Rd4 Rc3 Rd3 Nd6+
nr3RB1/BB3B2/BB2QN1n/6K1/1Rr4p/2rQqbn1/1N1b3k/1b1r1B1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 b4 a5 c4 d3 e4 f6 b6 a4 b5 d2 b7 h6 b6 f3 g6 a3 c5 a2 g7 f2 c6 Qe7 c7 Na6 Na3 Rb8 Rb1 a1R Ne2 d5+ Kh5 d4 g4 d3 g5 f5 g6 f4 Rb4 f3 Nf4 Qc5 Nd5 Bf5 c8B Nc7 Nf6 Kf4 e5+ Kg3 e6 Qe3 e7 Na8 Nc4 Ra3 e8B Rc3 Bb5 Bd6 Qe1 d1R Ba6 d2 Nb2 Bf4 Qe2 Bc2 Qd3 Bb1 Rh4 Bg5 Rhf4 Kh2 Kg4 h5+ Kf5 h4 Kg4 Ne7 g8B Rh5 g7 Nf5 Bf7 Rh8 g8B Nh6+ Kh5 Rh7 Rfe4 Bf4 Re8 Rg7 Rf8 Rg4 Bf5 Bg5 Be4 Rf4 Bed5 Re1 Bc6 d1B Bcd5 Be2 Bd2 Rd1 Bc6 Rc8 b8Q Rd8 Qbd6 Rb8 Bg2 f1N b7 f2+ Kg6 Qb6 Qe6 Bf3 Be3 Ng3 Bf1 Nh1 Be4 Qd4 Bd5 Qe5 Bb6 Qe3 Be4 Rbc8 b8B Re8 Bg2 f1N Beb7 Nfg3 B8a7 Rb8 Nd7 Be7 Nf6 Bd6 Kg5 Bc5 Rc4 Bb4 Re4 Rcc1 Bf1 Bd2 Rd4 Rc3 Rb4 Rfc4+
2r3qb/k2b2NN/4N1K1/3q1NBR/r3Q2r/1N1R1BrQ/2N2pN1/3nn1qq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 a5 Kf5 c5 e4 f6 d4 Kc7+ Kg6 Kb6 b4 f5 g4 a4 g5 a3 e5 a2 e6 c4 d6 h3 d7 f3 e7 h2 e8N h4 d5 f4 d6 f2 Qd3 f3 Bg2 f1R Nh3 f2 Nd2 c3 Nf6 c2 Nb3 Qe7 d8N Rh7 d7 Bh6 Qe4 Ra5 Nf4 h3 Bf3 Bb7 Nde6 Ka7 d8N Na6 Ng2 Bc6 Ng7 Rg1 Nde6 Qd8 Bf4 Qd5 Rd1 a1Q Rd3 c1R Bd2 Rh8 Nh7 Bd7 Be3+ Nc5 b6+ Ka8 b5 Ra4 b7+ Ka7 b8N Nf6 Na6 Ng4 Nb4 Qa2 Bd2 Ne3 Nc2 Nd1 b6+ Kb7 Ngf4 Rg3 Ng2 Ka8 b7+ Ka7 Rf1 h1Q b8Q+ Ka6 Qbf4 h2 Qg4 Qg1 Qh3 h1Q Re1 Ka7 Ree3 Qa8 Rd5 Qb8 Red3 Qg8 Na5 Qd8 Ne8 Rf8 Na1 Nb3 Kh5 Rf7 g6 Qa8 g7 Rf4 g8N Nd4 Ne7 Nc2 Rc5 Qc4 N5b3 Qc8 Rg5 Bg7 Nf5 Qd5 Kg6 Bh8 N8g7 Ne1 Be3+ Rc5 Nc2 Qg8 Bd2 Rc8 Bc1 Rgg4 Bd2 Rh4 Rh5 Rfg4+ Bg5 Rg3
1bqb3N/q1k3nN/2Nr2b1/Nrnn3p/b2R1B1N/1B2QK2/3QN1n1/N6R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 f3 b6 f4 b5 c4 g5 h3 e5 c3 e6+ Ke8 d7+ Ke7 g6 Kd6 g7 c2 e7 h2 e8Q a4 d5 a3 b7 a2 b6 Ra5 Nc3 Na6 b8N Rh6 b7 Ne7 g8N Nc5 Nce2 Rb5 Nc6 Nf5 b8N Kc7 Qd2 Be7 Nb4 Rd6 N8c6 Ng7 Na5 Ba6 Nf6 Qc8 Bg2 Bd8 Qee3 Bb7 Rb1 a1Q Nh7 Bc6 Rb3 Qa2 Rd3 Qa4 Rd4 Qa3 Bb2 c1B Nc2 Qa2 Na1 Qa4 Kf1 f2 Nf3 Qa2 Bh3 Qa3 Kg2 f1N Nh4 f3+ Kf2 Qa4 Be6 Qa3 Rg1 h1B Bf7 Bg2 Rh1 Bh3 Be6 Bf5 Bg8 Bg6 Bf7 Bg5 d8N Bd7 Ndc6 Bd8 Rg4 Be8 Be5 Bb2 Bg3 Be5 Rd4 Qa2 Bf4 Bd7 Kg1 f2+ Kg2 Be8 Kf3 Qa4 Qb3 Ne3 Bg8 Ng2 Qbe3 f1N Bf7 Ng3 Be6 Nge4 Bg8 Rd7 Be6 Nc3 d6+ Kb6 Bb3 Nd5 Nb7 Qa7 Nba5 Rb7 d7 Kc7 Kf2 R7b6 Kf3 Bg5 d8N Ra6 Nf7 Bd8 Nb4 Rd6 Nh8 Rbb6 Re4 Ba4 Nbc6 Rb5 Rd4 Rf6 Qg1 Kd7 Nc2 Bb8 Na1 Rd6 Qge3 Kc7
bnr3Bb/B1pk1q2/6N1/Qqn1B3/2nqnBR1/2B1r3/BN2RBK1/3Q1q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 d4 h5 g4 a5 e4 h3 b4 h2 g5 f3 b6 f4 g6 a4 e5 a3 d6 h4 b7 a2 d7+ Ke7 d5 h3 e6 Ra7 g7 Na6 b8B Rh5 d6+ Kf6 e7 Ke6 e8Q+ Qe7 d8B Bb7 b5 Re5 d7 Nf6 b6 Ba8 b7 Re3 Na3 Nc5 Qh5 Qf7 g8B Bg7 Nc4 Bh8 Ne2 Ra4 Rb1 a1Q Rg1 h1Q Nb2 h2 Ba7 Raa3 b8B Rab3 Nc4 Qd4 Rb2 Rbd3 Bg2 Rd2 Kf1 f2 Ra2 Rdd3 Nb2 Kd6 Bh3 Qhd5 Rg4 h1N Be7+ Ke6 d8B Nfd7 Bb6 Qb7 Ba5 Qb5 Ba7 Nb8 Bd6 Kd7 Bh4 Re8 Be5 Rc8 Bg2 Re3 Bd5 Ng3+ Kg2 f1N Bc3 Nge4 Bf2 f3+ Kg1 Qdc4 Bf6 Qbb4 Bg3 f2+ Kg2 Qd4 Nf4 Nb3 Nc4 Rf3 Re2 Nfd2 Nb2 Qb7 Ng6 f1Q+ Kh2 Qbb6 Bf2 Qe1 Kg2 Rd3 Bc4 Rh3 Qa5 Qb5 Bd5 Nbc5 Ba2 Nc4 Bf4 Re3 B6e5 Qf1+
Q1qq1n2/1bpr4/N1RN1b1k/1K5B/N7/r1QNN2b/3n1r1N/1N1rB1bR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 f5 Kd2 Kf7 Kc3 Kg6 Kc4 a5 e4 h5 b4 h3 g4 f3 g5 a4 e5 f2 b6 h4 b7 h2 d6 f4 d5 a3 d7 f3 e6 h3 b5 a2 b6 Bb4 d6 Qf8 d8N Rh4+ Kb5 Bd7+ Nc6 Kg7 e7 Rg4 e8N+ Kg6 Bd2 Na6 b8N Nc5 b7 Ne6 Qc2+ Re4 Be2 f1Q Be1 f2 Qc3 Ra3 Nf3 Nf6 Na6 Rd4 b8N Ne4 Nc5 Nd2 Na4 Bc5 Na6 Qf6 Ng7 Nf8 Nf5 Qd8 Ne3 Kh7 g6+ Kh6 g7 Bg4 Rg1 h1B g8Q h2 d7 Qh3 Ncb4 f1R Nd3 Rf2 Rf1 Bg2 Rh1 Bf5 Qd5 Be4 Qa8 Bb7 Bd1 Qg4 Be2 Bh3 Bd1 Qg8 Be2 Qc8 d8N Rd7 Nf7+ Kh7 N7g5+ Kh6 Ne4 Qg5 Nd6 Qgd8 Ng1 Bb6 Bh5 Bd4 Nf3 Bc5 Rg1 h1R Rg6+ Kh7 Nc2 Nf1 Bd2 Qe7 Nf7 Bd6 Ne3 Bh2 Rc6 Qed8 Nd6 Kh6 Qd4 Re2 Nbc3 Rf2 Rc1 a1B Nb1 Rg1 Qc5 Bf6 Qc3 Ng3 Rd1 Ne4 Re1 Rg8 Rh1 Rg1 Qa7 Re1 Qa8 Bg1 Nh2 Rd1 Be1 Nd2
qNB1KQr1/1bpB2bQ/1Rq4B/3bBnr1/BB5R/4N1p1/1bbBkn2/8 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Ke3 f5 Kd4 b5 h4 g5 e4 f4 a4 b3 d6 Kc6 e6 b4 Ke5 Kc5 d4+ Kc6 d7 f3 d5+ Kc5 h5 f2 d6 g3 e7 g2 Ke6 b2 Kf7 b3 e8B g4 a5 g3 h6 Bg7 h7 Na6 e5 Bf6 e6 Bh4 e7 Bf6 Qd3 Be5 Na3 b1Q Rh4 b2 Nc4 Ra7 Nf3 g1B Ne3 Bb7 Nd4 Bh1 Bh3 f1B Nc6 Bd4 Bd2 Bg7 Nb8 Qe1 Rb1 Nb4 a6 Bfg2 Be6 Ra8 a7 Qc1 Bg4 Qc8 d8B Bb7 Ba4 Bhd5+ Ke8 Bf2 Qc2+ Kd4 d7 Be1 Qf5 Nh6+ Qf8 Rg8 h8B Kd3 Bh3 Bd4 Be5 Rg5 Qf5+ Ke2 Qh7 Bc3 Nc6 Rf5 Bf6 Bf7+ Kf8 Ra5 e8Q Bf2 Ng2+ Be5 Bde7 Ng8 d8B Bfd4 Bd7 Nd3 Ne3 Nf2 Bg5 Bf6 Bh6 Rg5 Ba3 Bfe5 Bf6 Ne7 Bd6 Nf5 Bfe7 Bf6 Be5 Qc4 Qd8 Rb8 Bc5 Bd5 a8B Ba6 Bb7 Qc2 Ra1 b1B Ra3 Bh8 Rb3 Bb2 Rb6 Qc4 Ba3 Bc2 Bab4 Ra8 Qe8 Qb8 Qd8 Qa7 Qe8 Rd8 Bbc8 Bb7 Nb8 Qa8 Bec3 Qc6 Be5 Bf3 Kf7 Bg7 Qe7 Rg8 Qf8 Bh1 Ke8 Bd5
BB2b2q/n4QQR/r1N1NR2/6qK/1Nrpkqnp/2r5/N5rb/N1N2N2 w - - 0 1 illegal: No possible last move, all moves rejected
1N1R2q1/1KQ1b2r/1R1r1Qp1/Bq1b3k/2R1N2b/3R2R1/B1b1p1RR/n3n2r w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 d5 c4 e5 f4 a5 h4 a4 b4 g3 b6 g2 b7 a3 b5 a2 f6 Kg6 c5 Ne7 b6 Nf5 c6 Qe8 h5+ Kh6 f7 g6 c7 Be7 f8Q+ Ng7 f5+ Bg5 f6 Ra6 f7 Rh7 Rh2 Bd7 c8R Ra4 Nd2 Nc6 b8R Bh4 b7 Be6 Ne2 g1B Rg2 Ra6 Qc2 Na5 Rc4 Rd6 Rd8 Qb5 b8R Nb3 Rb6 Bgf2 Qe7 Nf5 f8R Ne3 Ne4 Bf7 Rb1 a1Q Bd2 Qa8 Qf6 Na1 Ba5 Qb8 Rg3 Ng2 Rb2 Be1 Rd7 Bb4 Rfd8 Qa8 Nc1 Ba3 Na2 Qb8 Nb4 Ne1+ Ke2 d3+ Ke3 d2 Na6 Qa8 Nb8 d1B Bh3 Bg8 Be6 Bb4 Qc3 Bb3 Rbg2 Bc2 Rd4 Ba3 Qc7 Bb4 Rc4 d4+ Ke2 d3+ Ke3 d2 Bf7 Rc6 Rd3 d1R Be6 Be7 Bf7 Nf3 Bd5 Rh1 Bf7 Ne1 Be6 Rg7 Bd5 Kh7 h6 Rd6 Nc3 Qac6 Ke4 Bg5 Ra4 Qe8 Ba2 Bf7 Rc4 Qg8 Rc5 Re6 Kd5 e4 Qd7 e3 Ne4 e2 Qc7 Qb3+ Rc4 Rd6+ Kc5 Qb1 Bb3 Bd5 Ba2 Bb3 Kb5 Bc2+ Ka6 Qb5+ Ka7 Rf7 Qf5 Kh8 h7 Kg7 h8R Bgf6 Rhh3 Bh4 Rhh2 Kh6 Qe6 Rh7 Qf6 Bf7 Ka8 Kh5 Kb7 Bd5+
8/1nq4B/NpN2b1b/RR1brRB1/R1R3K1/Qr2Rp2/2Q1Rb2/1nr2kq1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 a4 Kc5 e4 Kd4 h4 c5 d6 g5 a5 f5 h6 b3 h7 b6 h5 b2 h6 c4 d7 c3 e5 c2 e6 Ra7 e7 Na6 e8R Qc7 d8Q+ Qd7 Ne2+ Kd3 Re3+ Kc4 d4 Nf6 d5 Bb4 d6 Re8 h8R Nd5 h7 Nc5 a6 Rc7 a7 Nb7 a8R Nc3 R1a4 Re5 Qf8 Rcc5 Bg2 Qc7 R8a5 Be6 d7 Rc6 Bd2 c1B d8R Bg8 Rh5 Bd5+ Re4+ Kd3 Nd4 Ba3 Re8 Be7 Na3 b1R Nac2 Bf6 Qa3 Rb3 Rhf8 Nb1 h8R Rc5 Nc6 g4+ Kf2 f3 Kg3 f2 Bg5+ Bd2 Re2 f1Q R8h7 Qg1 N2b4+ Kc3 Kh4 f4 Be4 g3 Na6 f3 Kg4 g2 Rh4 Bf4 R7h5 Bc1 Bh7 Bd2 Ree4 Kd3 Rh2 Rc1 Rec4+ Be4 Qc2+ Ke2 Re7 Bd5 Rb5 Kf1 Ra8 Rf5 Re3 Re5 Rf8 Qh1 Rba5 g1B Rhe2 Bf2 Rb5 Bg7 Rf5 Bh6 Rh4 Bc3 Raa5 Qg1+ Kh3 Re6 Rca4 Bf6 Rhc4 Qgh2+ Kg4 Re5 Rce4 Qh1 Rec4 Qg1+
2n1nR2/KQ1Q1BpR/Q2Br1bQ/b7/2Q2Qp1/1rN1q2Q/p1Nk1r1b/1n6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 h4 Kd4 h5 f5 e5 a5 d6 c5 h6 a4 b6 f3 e6 a3 b7 c4 b5 a2 h7 c3 e7 c2 e8Q f4 d7 Ra3 b6 Ra5 Qe6 Rf5 Ba3 c1B Bd6 Qe8 d8Q Qa4 Qh6 Ke4 d4 Nd7 b8Q Bb2 d5 Qa8 b7 Qa5 Qdf6 Qa6 Qc2+ Qd3 Na3 Nb6 Ne2 Re5 Nc3+ Kd4 Qa8 Bf5 b8Q Bg6 Qab7 Bc1 Q8a7 Bd2 Qaa6 Qe4 Qf5 Nf6 Bc4 Re6 Raf1 Ne8 Qff7 Rg8 h8Q Be7 Qf8 Bf6 Qh3 Be5 Qf6 Rf8 Q8h6 Rf7 Qca4 Rc7 Qd7 Rc5 Bb3 Rb5 Nc2+ Kd3 Qdf7 Bc1 Qfc7 Kd2 Qc4 Bb2 Bf8 Ba3 d6 Bb4 d7 Ba5 d8Q+ Qd3 Qdd7 Bb8 Ba4 Rb3 Bd6 Qe4 Bc6 Qe5 Bd5 Qe1+ Kg1 f2+ Kg2 Qe3 Qfg5 Re5 Bf7 f3+ Kg3 Re6 Qgf4 Re4 Kh4 Re6 Kg5 Bh5 Kf5 Bc7 Rfg1 f1N Rg3 f2 Rf3 Kc1 Rh2 Nd2 Rh1+ f1R Rh2 Nb1 Rff2 Qd2 Rh1 Rf6+ Ke5 Bg6 Rf3 Bb8 Rh2 Rf2 Rh1+ Kb2 Rh2 Qe1+ Kd4 Re6 Kc5 Bc7 Be7 Be5 Bd6 Qe3+ Kc6 Kc1 Rh1+ Kd2 Rh2 Nf6 Kc7 Bd3 Kb8 Bg6 Ka7 Ne8 Qfe4 Bf5 Bg8 Rg6 Q3h5 Be6 Qh7 Qh6 Rf8 Qe3 Bf7 Bf5 Qh8 Bg3 Qf4 Re6 Qhg5 Bg6 Rh6 Rh2 Qh4 Rf2 Qh3 Bh2 Qh7 Be4 Qg6 Bd3 Rh7 Bf5 Qgh5 Bg6 Qhh6 Nc8+
N3r2R/3Q2bn/1r1q4/BNp2K2/Nrb2N2/2p2RNp/kbq2Q1N/3BN1n1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 Ke2 Kd7 Kf3 Kd6 Kg4 Kd5 f4 a5 d4 e5 b4 c5 b6 a4 b5 h6 b7 a3 b6 e4 Bd2 h3 Ba5 a2 Ne2 e3 Nd2 c3 Nf3 Kc4 d5 h2 d6 Ne7 d7 Qe8 d8N Ng6 Ne1 Nc6 b8N Nb4 b7 Nc2 Nf7 Kb3 Na6 Rg8 b8N Qd7 Nc7 Ka3 Nd6 Qe8 Ndb5+ Kb2 Nd7 Nb4 f6 h5+ Kf5 h4 g4 Bd6 f7 Ba6 f8N Nd5 g5 Qb8 Ng3 e2 Nb6 Nf6 Nfe6 Be5 Qd7 Re8 Na4+ Kb3 Bh3 Nh7 Bg4 Bg7 Bh5 Ra7 Na8 Ne5 g6 Qd6 Rf1 h1Q Rf3 h3 Bg4 Bh8 g7 Qh2 g8N Bg7 Nf6 Rb7 Bh5 Reb8 Ng4 Rb6 Rd1 Qf2 Nh2 a1B Bg4 Ka2 Bh5 Qc7 Rd6 Qg2 Rc6 Qd6 Rc8 Bb2 Rh8 Nc4 Ke4 Qf2 f5 Ne5 f6 Re8 f7 Reb8 Rf5 Nf3 f8Q Ng1 Rf3 Re8 Kf5 Reb8 Nbd4 Bc4 Nf4 Rb4 Nb5 Rb6 Neg2 e1R Qf6 Re8 Ne1 Qe3 Qd4 Qee7 Qf2 Qh4 Re3 Qd8 Bd1 Q8e7 Rd3 Qe2 Rf3 Qc2+
K1q1b1N1/1r2BBBp/1b2r2n/7n/kpBR2q1/2Bq1R1p/B3QbQB/5N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 c5 Ke4 b5 a4 e5 d4 h3 f4 c4 g4 b3 g5 b4 f6 b2 f5 c3 g6 c2 a5 Nh6 d6 Kc6 d7 Qe8 d8B Ra7 g7 Qe6 g8B Rc7 f7 Bd7 d5+ Kc5 a6 Rc8 f6 Qc6 a7 Bd6 f8B Qb6 a8B Bc6 f7 Be7 Nd2 b1Q Ne2 Kb5 Nd4+ Kc5 Ra3 Qc7 Bg7 Nd7 f8B Qa2 Bb2 c1Q Nf5 Nb6 Qe2 Bd6 Ne7 Qd7 Bc3 Qd1 Bc7 Re8 Bf7 Qab3 Ng8 Qc8 Be7 Nd7 Rg1 Ba4 Rg4 Bb5 Bb8 Kb6 Rf4 Bc7 d6 Qe6 Bc6 Qg4 Kd5 e4 Ba8 e3 Rd4 Ba4 Qg2 Ka5 Bc4 e2 Nf1 e1B Bc6 Ne5 d7 Bf2 d8Q Nd3 Bb7 Bb6 Bh2 Qb3 Ba6 Qc2 Ba2 Nf4+ Kd6 Qb3 Bac4 Nh5 Qd7 Qb1 Qe6 Qd3 Rb3 Bd7 Qe2 Ka4 Bh4 Re3 Be7 Bc7+ Kc5 Be8 Kd5 Re6 Kc5 Bd6+ Kb6 Bc7+ Ka7 Qd7 Nf6 Bb6+ Ka8 Rf8 Ng8 Qc7 Bg6 Rf5 Bf7 Rd5 Rb1 Rd7 Rd1 Qc5 Rf4 Rb7 Rf3 Qde4 Rd8 Qd3 Rd4 Qc8+
R2QRN1R/6KR/nr4b1/pRq2Nb1/Rr4Q1/1Bp1p1R1/4b1qb/2k2nB1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 h3 g4 c6 b6 e3 f5 h4 b7 e6 g5 e2 f6 e1B b5 h2 g6 h3 f7 Ra7 g7 Qe7 b6 Qg5 Nf3 Qg6 Ng5 Rh5 Na3 Nh6 g8R Bh4 Nh7 Qf5 Bc4 Na6 b8R Ng4 b7 Ne3 Qg4 Rh6 Ra8 Nf1 b8R Rb7 Nc2 Bg5 Ra4 Rb4 Rb5 Bd7 d3 Be8 Be3 Rf6 Bg1 e5+ Kc3 c5 d4 e4 Ne3 Bg7 f8R Bg6 Bb3 c4 Rfe8 Re6 Nf8 Be5 Ng2 e3 Nh4 Rf6 Rh8 Qc8 Rg8 Qc5 Nf5+ Kc7 d6+ Kc6 d7 Kd5 Rh8 Rb6 d8R+ Bd6 Rdc8 Bg3 Rc7 Bd6 Rg7 Be5 Qh5 Ke4 Qh4+ Kf3 Rhh7 Ke2 Qg4+ Ke1 Rh8 Bd6 d5 Bdf4 d6 Bg3 Kc2 c3 Kd3 B3f4 d7 Bd6 Bc4 Be5 Ke4 Kd2 d8Q+ Kc1 Rgh7 Bg3 Bf2 Bc7 Rg1 h1B+ Rg2 h2 Bg1 Qc6+ Kd4 Bb8 Rg3 Bf3 Rc5 Qc8 Rb5 Be2 Kd5 Bd6 Bb3 Qc5+ Ke6 h1Q Ng7 Bf5+ Kf7 Qg2 Kg8 Bg6 Nf5 Bdf4 Kg7 Bb8 Rgh3 Bh2 Rf3 Kb1 Rg3 Kc1
4nk2/nnR2r1b/1R1p2q1/1Q1Q3K/2BBrpR1/1pbR4/2N1pR2/r1N1RR2 w - - 0 1 illegal: No proof kernel
1qrb2rQ/bqRn1b2/1N2R2R/1r2N1bN/2RB2N1/rR6/7B/1K1Nr2k w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Ra5 f4 Bh3 Nc6 Ra4 Nce7 Ra1 Nf5 gxf5 Nh6 Bg4 hxg4 Qc2 Ng8 Qa4 Kd7 Qd1 Ke8 e4 Kf7 b4 Kf6 h4 Ke5 d4+ Kf6 Kd2 c5 Kc2 g5 e5+ Ke7 e6 Kf6 b6 a5 d6 g3 d7 c4 b5 f2 h5 f1Q b7 f3 b8B a4 e7 g4 e8R f2 b6 c3 h6 g2 d5 a3 h7 g3 b7 a2 d6 Qa5 d8R Ne7 d7 Bg7 Qd4+ Qe5 Ne2 g1R Bb2 Kg5 f6 g2 f7 Nd5 f8N Nf6 Rh6 Ra5 Re6 Rb5 Nf4 Kg4 Nh5+ Kf3 Rde8 Qfe1 d8N f1R Nf7 Nd7 R8e7 Bf6 Bc7 Qh4 b8R Qh1 Rbb6 Rg8 h8N Re1 Nhg6 Rgf1 Rbc6 g1B Rc4 Kg2 Bd6 Qg3 Nfe5 Bf2 Reh7 Bd8 Ng4 Be3 Qg7 Ba7 N6e5 Kg1 Qh8 Qb7 Rf7 Kg2 Rf3 Kh1 Rd3 Rf7 Rc7 Re7 Rd4 Re8 Rdc4 Re4 Kc1 c2 Nc3 Re1+ Nd1 Qh2 Rb1 a1R Bc3 Ra3 Rb3 Qg3 Kb2 c1B+ Kb1 Bcg5 Bd4 Qf4 Nfg6 Qh2 Ngf4 Qg3 Rb2 Qb3 Nd5 Qb8 Nb6 Bb7 Rh7 Bd5 Rhh6 Qf3 Rb3 Qg2 Re7 Bf7 Ree6 Qc6 Nd3 Qcb7 Bh2 Bdf6 Nde5 Rc8 Rc3 Be7 R3c4 Bd8
5R2/3p1Bn1/1q1nQR1B/NRB1K1pR/1b1r3B/r1pk2n1/N1r1p1B1/5R2 w - - 0 1 legal: proof: g4 b5 a4 f5 axb5 h5 e4 hxg4 exf5 Nf6 d3 Ng8 Bg2 c5 Ra3 c4 Ra6 c3 Bf1 Bb7 Ra1 Bd5 Bg2 Nc6 Bf1 Bc4 dxc4 Nb4 Ke2 Nxc2 Kd3 Kf7 Ke4 Kf6 h4 e5 b4 a5 f4 a4 b6 g3 b5 g2 b7 a3 b8B g6 h5 a2 c5 Qa5 b6 Ra7 h6 Qa3 c6 Ra5 c7 Nb4 c8B Rh7 b7 Qb3 Ne2 g1N Qd5 Qb2 Bd6 Ra7 b8R Re7 h7 Nc2 h8B+ Bg7 Ba6 Ra8 Rb5 Qb3 Bg2 Na3 Rh5 Nc4 Na3 Nh6 Bc5 Rc8 Rb1 a1R B1e3 Rce8 Nc1 Ne2 Na2 g5 Bf2 Re6 Bh4 Rd6 Rf1 Rc1 Qg8 Ra8 Bb7 Ra7 Bd5 Rc2 Bf7 Ra4 Qe8 Rda6 Kd5 Nd6+ Nc4 e4 Qg8 Qb4 Na5 e3 Qe8 Ng3 Qe4 e2 Qc4 Ke7 f6+ Kd8 f5 Kc7 Kd4 Bf8 Ke5 Qb2 Qe6 Rd4 Bg7 Qb1 Nb7 Ra3 Na5 Qb3 Bg8 Be7 f7 Bf8 f6 Nhf5 Bh6 Ng7 Bb4 Be7 f8R Qb2 f7 Qb1 Rd5 Kb6 Rb5+ Ka6 Bc5 Qb3 Rfb8 Qb4 f8R Qb2 R5b7 Qb6 R8f6 Kb5 Bf7 Ka4 Nc4 Kb3 Na5+ Kb2 R1f4 Kb1 Rf8 Kb2 Nb4 Kc1 Na2+ Kd2 Rf1 Kd3 Rbb8 Qc7 Rb4 Qb6 Rb5 Nc8 Bb4 Kd2 Bd6 Kd3 Bc7 Bc5 Bd6 Bb4 Bc5 Nd6
3RRR1K/1N1b3N/R1BR1B2/3rN2b/1b2br2/Nn5q/Q1bq3n/1bk1N2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 c5 g4 f5 d4 h5 g5 a5 g6 h3 d6 h2 d5 h4 d7 f3 g7 a4 d6 h3 b6 a3 b5 f2 b7 a2 b6 f4 Be3 f3 Bh6 Qh4 d8R Ra5 d7 Ne7 g8N Nbc6+ Ke6 Nf5 Kf7 Ne5+ Ke6 Ng3 b8N Ng4 Na3+ Kc3 Kf7 Kb2 e4 c4 b7 c3 e5 c2 e6 c1Q e7 Qd2 e8N Rd5 Bg2 f1B Qe2 f2 Ngf6 Bb4 Kg7 Rf8 Nh7 Rf4 Nd6 Qh5 Rd1 a1N Nc6 Nb3 b8R Qh4 Qe6 Be2 Rf8 f1B d8R Bd7 Nb7 Bf3 Ra8 Bd3 Ra6 Bb1 Kh8 Bfe4 Qg8 Bec2 Nf3 Qh5 Rhe1 h1B Re7 h2 Ne1 Qh3 Bf3 Bg2 Ree8 h1B Bg5 Nh2 Ne5 Bf1 Bh4 Be2 Bf6 Bg2 Be4 Bh5 Qf7 Nh1 Bf3 Rd6 Bc6 Bge4 Qc4 Rd5 Qe2 Qd4 Rd2 Kc1 Rd3 Bd1 Qa2 Bdc2 Rd2 Qde3 Rd3 Qd2 Rd4 Rb5 Rd6 Rd5
R1qN2r1/q6B/b3b3/BR3BbB/nb1b4/NnNN2k1/b1Nr4/nBQ3K1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 c4 Ke6 e4 f5 h4 a5 b4 d5 c5 g5 b6 g3+ Kg2 g4 b5 d3 b7 d4 c6 d2 h5 f4 h6 d3 h7 a4 c7 a3 b6 a2 Bb2 Ne7 Bc3 Nd7 b8N Nc6 b7 Nb6 Ba5 Bb4 Qc1 d1B Ne2 f3+ Kg1 d2 Na3 g2 Nd7 Rg8 b8N Na4 h8N Bb3 Nf7 d1Q Rh5 Nd4 Na6 Qe1 Nc3 f2+ Kh2 Qe3 Bd3 f1B Bb1 g1B+ Kh1 g3 Ndc5+ Ke7 e6 Kf6 e7 Bce6 e8B Qc8 Nd8 Bbd5 Bg6 Nb3 Nd3 Qa7 Re5 Be3 Bh7 g2+ Kh2 Bc4 Rb5 g1B+ Kh1 Be2 e5+ Kg5 Kg2 Kg4 Kh1 Bf7 e6 Kg3 e7 Bfe6 e8B Bg5 Beg6 Bd4 Bh5 Qd7 c8B Rb8 Bb7 Qc8 Bbe4 Rf8 Beg6 Rf2 Bf5 Ra8 Kg1 Bcd5 Ne1 Bec4 Nc5 Bb7 Bbe4 Ba6 Ncd3 Bcd5 Nec2 Rb8 Rb1 a1N Rb2 Rb7 Rb1 Rg7 Rb8 Rg8 Ra8 Nd2 Rb2 Ba2 Rb1 Bbe7 Rb6 Ndb3 Rb5 Bb4 Ne3 Rf4 Nc5 Bd7 Bb1 Rf2 Nd3 Be6 Nec2 Rd2+
q2BRB2/4b3/k1q2nn1/qN5K/1rB2N1Q/1N1Bbq2/Nr4b1/1nnR1N1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8B a3 g5 a2 d5 h3 d6 c2 g6 Rh5 g7 Ra7 Nd2 Rh7 Bd3 Nh6 g8B Nc6 Qe1 Ra4 Bgc4 Ne7 Ba3 c1N Ne2 Rb4 Ng3 Ng6 Nb3 Ng4 Nf1 Be7 Qh4 Rh5 Rb1 a1B Bef7 Qc7 d8B Bd4 d7 Be3 Bfd5+ Qc6 Rg1 h1Q+ Rg2 Qh2 Re2 Rh8 Re1 Qa2 B5e4 h2 Ra1 Ka8 b7+ Ka7 b8N Bb7 Na6 Ba8 b6+ Kb7 Bc7 Rb8 Bd8 Qd2 Re2 Qe1 Nc7 h1Q+ Rg2 Qc3 Nb5 Ka6 b7 Qe5 Bed5 Qec7 B5e4 Qa5 Rb1 Na2 Rd1 Nc1 Qf2 Qh8 Qh4 Qg8 Re2 Qe8 Kg2 f3+ Kh3 f2 Bh1 f4 Ree1 f3 Kg3 Ra4 Bd6 Rb4 Re2 B7g5 Bf8 Bf6 Bb6 Bfg5 d8N Be7 Ne6 Qd8 Nf4 Qdd5 Nfd2 f1Q Bd8 f2 Ree1 Qe2 Nf1 Qe4 Nh2 f1N+ Kh3 Nd2 Nf1 Rc8 Kg3 Nb1 b8N+ Kb7 Na6 Rb8 Nc3 Ka7 Nc7 Kb7 N7b5 Ka6 Kh3 Bb7 Na2 Q2f3+ Ng3 Qd4 Re2 Qa7 Ree1 Qa8 Re2 Qfd5 Nf1 Qf3+ Qg3 Bc8 Rc2 Nf2+ Kh2 Ra4 Na1 B7c5 Qh4 Bh3 Re2 Bed4 Re8 Be7 Nbc3+ Rb5 Bg8 Bg2 Bgc4 Qfe4 Kg3 Be3 Qh6 Ng4 Qg5 Nh8 Kh4 Qf3 Kh5 Ng6 Re1 Ka7 Rd1 Rb2 Nb5+ Ka6 Qh4 Rab4 Nb3 Nf6+
2rRrBr1/1n2b2R/1nBN1KN1/3q4/p1bNR3/NN4r1/rk2rR1R/4Qr2 w - - 0 1 illegal: No possible last move
7r/1B6/qb1RB3/Q2Nr1BN/1N1r1RbK/p1nn1B1N/1B1nN2q/b2k3b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 g6 a4 d7 f3 b7 h3 Kg3 c4 b5 h2 e6 a3 g7 f2 b6 c3 e7 f4+ Kh4 f3 Ne2+ Kd3 Qe1 Kc2 d4 Rh6 d5 Rg6 d6 Ra5 Bb2 Qc7 e8B Ne7 d8N Na6 b8N Nb4 g8B Ned5 b7 Nd3 d7 Bg7 Bg2 f1N Ne6 f2 d8B Nd2 Nd7 f1Q Ng5 Rd6 Nf6 Bg4 b8N Rd7 Rg1 h1B Be6 Qh2+ Nh3 Bh8 Bf3 Rd6 Qf2 Kd1 Qb6 c2 Na6 c1B Nb4 Nc3 Bec6 Rd4 Bb7 Re5 Qa5 Bg7 Ne8 Bh8 Bg5 Bf6 Rg2 Bd8 Ng7 Bb6 Bfd5 Qf6 Rf2 Qh6 Rf4 Qf6 Bec8 Qc6 Ra2 Qc4 Bce6 Qa6 Ba1 Bb2 Bg2 Nb5 Bgf3 Bc3 Rc2 Bb2 Rc7 Nc3 Rc6 Nce4 Rf6 Qg1 Rd6 Bg2 Rf4 Bc3 Bb2 Qh1 Bc1 Ba1 Nbc3+ Ke1 Nd1 Nc3 Ne3 Qg1 Ned5 Kd1 Kg3 Qf2+ Kh2 h4 Nhg1 h3 Bb2 Qh4 Rf7 Qh7 Kg3 h2 Rf6 h1R Rf4 Rh6 Nh5 Qe4 Kh4 Rh8 Nh3 Qe3 Rf7 Qf4 Rf8 Qh2 Rf4 Bh1
2k5/2B1r1nQ/q4Bn1/2BB1nrn/1q2R1n1/B1b1p2N/R1RN2nR/R4bK1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 b4 c5 f4 h5 Kf2 e5 b6 a4 b7 a3 d6 a2 b5 e3+ Kg2 e4 g5 e2 f5 e1N+ Kf2 e3+ Ke2 c4 d5 c3 g6 h3 g7 c2 b6 h2 f6 h4 f7 h3 Qd4 Nf6 g8R Rh7 Qc5 Nc6 b8B Ne5 b7 Nfg4 Bc7 Ra5 b8R Bg7 f8B Qe7 Ba3 Ng2 Rb4 Ng6 Re4 Bc3 Qa7 c1N+ Kf3 Rb5 Nd2 Nb3 Bc4 Nc5 Ke2 Qh4 Kf1 Ne6 Be7 Bb7 Ra8 Ba6 Bf6 Ra5 Bd4 Re7 Bdc5 Ng7 Qb7 N6f4 Qb1 Bb5 Ra6 Kc8 d7+ Kb7 d8B Kc8 d6 Ng6 Rc6 Ba6 Qd3 Rb5 Bd5 Ra5 Rb1 a1Q Re1 Qa2 Ra1 Qc4 Ra2 Qb4 Ra1 Qh6 Ra2 Rf7+ Bf6 Re7 Ne2 Rb5 Nf4 Ra5 Rg1 Rb5 Qc2 h1N Qb1 h2 Nh3 Nhf2 Qd3 h1N Qc2 Nd3 d7+ Kb7 d8R Ndf4 Rh8 Nfh5 Rh7 Kc8 Qd3 Nhf2 Rh1 Ra5 Rh2 Nh1 Kg1 N1g3 Ra1 N3f5 Rh8+ Kd7 Ra8 Rb5 Ra7 Kc8 Bcd4 Qf4 Rc4 Nfh4 Ba8 Ra5 Re6 N6e5 Qh7 Bb2 Rc2 Bc3 Bb2 Neg6 Re4 Rg5 Bd5 Nhf5 Bc5 Qd6 Bc1 Bf1 R7a2 Qe6 Ba3 Qa6
r2kBN2/3n1K1N/N1bRQp2/2n3B1/nRR3r1/2bRN1n1/q5bR/2N1b1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 c5 Ke5 h3 e4 a4 g4 f3 d4 f2 b4 a3 g5 h2 g6 h4 g7 a2 d6 c4 d5 h3 d7+ Ke7 b6 c3 b5 c2 b7 Ra3 b6 Rf3 Nc3 Rg3 Qg4 Rh6 Bb5 f1B Bg5+ Rf6 Nge2 c1N Rb1 a1B Rb4 Qe8 d8R Na2 Nc1 Be6 Rd6 Bd7 Qe6+ Kd8 Rc4 Ne7 g8R Na6 b8R+ Nc8 b7 Bg2 Rh8 Be7 Rd1 h1N Rd3 h2 Bc6 Rh6 Kf5 Bf6 e5 Nf2 Nd1 h1N Ne3 Qg8 Rh7 Rg6 Rh2 Bc3 Bb5 Nc5 Ba4 Kc7 Bc6 Bh8 Bb5 Rg7 Kf6 Nb6 Ba4 Nh3 Ke7 Bc8 Be8 Bd7 Qg6 Qf8+ Kf6 Bb2 Re6 Ba4 Bf4 Bb5 Bc6 Rg4 Qh6 Ng3 Bd7 Nc8 d6+ Kd8 Bc6 Nc3 d7 Kc7 d8N Nb6 Red6 Nb3 e6 Ng1 e7 Ba3 Qg6 Bb4 Bg5 Nca4 Qe4 Be1 Qf5 Na8 Bd7+ Bbc6 e8N+ Kb6 Ne6 Qg8 Rc5 Rh7+ Ke7 Ba1 Nf6 Bac3 Nf8 Kc7 Be8 Rg7 N6h7 N8b6 Bd7 f6+ Ke8 Qc4 Qe6 Qb4 Rc4 Qa3 Ng6 Rg8+ Kf7 Rc8 Be8 Nd7 Ngf8 Qb2 Ra8 Qd2 b8N Qa2 Na6+ Kd8 Rb8 Nbc5 Rbb4 Ra8
1n1rBb2/4Nn2/nBr2r1p/1b2RK2/k1B2n1r/q1R4B/3R1BQb/3NR2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 b4 h6 d4 f3 g4 a4 g5 f2 g6 f6 d6 a3 g7 c4 b6 Kc6 d5+ Kb5 b7 a2 d7 c3 d6 h3 Kf5 c2 e4+ Ka4 b5 h2 e5 Qc7 e6 Qa5 d8B Bd7 Nf3 Na6 Qe2 Rc8 b8R Rc6 Be3 c1N Bdb6 Nd3 Rc8 Ne5 Nd4 Nf7 Bh3 f1R+ Bf2 Be8 d7 Ne7+ Kf4 f5 g8B Qc3 d8R Qa3 Qe4 Bd7 Qg2 Be8 Rd5 Bd7 Re5 Be8 Rg1 h1R Rd8 Rh2 Rdd5 Bd7 Rh1 Be8 Rc5 Bd7 Rc3 Be8 Kf3 f4 Kg4 f3 Nf5 Bd7 Bbe3 Be8 b6 Bd7 b7 Be8 Be1 f2 b8R Bd7 Kf4 Be8 Rd8 Bd7 Bg4 Rh4 Bb6 Be8 Nd2 Bd7 Nc4 Be8 Rb1 a1B Nce3 Bb2 Nd1 Bc1+ Ke4 Bf4 Bh3 Bh2+ Qg4 Rc7 Rbc1 Bb5 Rd2 Nc6 e7 Ncb8 e8B Rc6 Rb1 Rg1 Ne7 f1N Bef2 Ng3+ Kf4 Ne2+ Kf5+ Nf4 Qf3 Rgg6 Qg2 Nd8 Bc4 Nf7 Ne3 Rgd6 Rbe1 Rg8 Nd1 Rgg6 Ne3 Rd8 Nd1 Rgf6+
4q1BB/1n1RN2K/5R2/1R1q2Bk/1q1N1Rp1/n1rb1B2/nb1Rp1Bq/5Qr1 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Ke3 Kg6 Kf4 d5 b4 a5 c4 a4 h4 e6 b6 e3 b7 a3 b5 e2 b6 e1N h5+ Kh6 c6 a2 c7 g6 c5 g3 c6 g2 Nc3 d4 Nd5 d3 Ne2 g1Q Rh4 d2 Ne7 Rh7 Bg2 Na6 b8R Nb4 b7 Ra3 Nd4 Nec2 Qf1 d1Q f3 Bd7 c8B Nf6 c7 g5+ Ke5 Rb3 f4 Qe8 f5 Ne4 f6 Na3 f7 Qh2+ Rf4 Nd6 Kf6 g4 Rb1 a1Q Rb2 e5 Rd2 Bb5 Be6 e4 Rd8 e3 c8B e2 b8R Rf3 Bb7 Na2 Rd7 Rc3 Bbf3 Bc4 Rb5 Nb7 Kf5 Bg7 f8R Qb2 Bg8 Qb4 Rf6+ Qg6+ Ke5 Kg5 h6 Qe8 Ke4+ Kh4 Ke5 Bh8 Kf5 Rf7 Kg6 Qdb3 Rfb6 Rf5+ Kh7 Kh5 Rf6 Qd1 Rc2 Qd3 Be3 Qe4 Rd2 Qd5 Bf2 Bg7 Bh4 Bh8 Rf7 Rf6 Bg5 Rc6 R7f6 Rc1 Qf2 Rg1 Qf1 Qa8 Nc2 Qba4 Rf8 Bb2 R8f6 Qb4 Kg7 Bd3 h7 Rc3 h8B Bc4 Nd4 Qe8 Kh7 Bd3+
1B4QN/2qRRB1q/4b1Kp/Rrb2n2/1n3b1N/Br3Bkp/B5q1/q1R2R2 w - - 0 1 illegal: No possible last move
2B1N2N/p2NR1bq/1rp2q2/1rR1Nq2/B2n4/5b2/BK2Qp1B/Bnn2N1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 f5 g4 h5 b4 h3 e4 h2 g5 f3 e5+ Kd7 b6 f2 d6 Ke6 d5+ Kf7 d7 Kg6 d6 f4 b5 Kf5 b7 Ke4 e6 h4 g6 h3 g7 f3 e7 Nf6 e8B Rh6 g8B Rh7 b6 Be7 Ba6 f1Q Nd2+ Ke3 Bb2 Kf2 Rc1 Kg2 Ba2 Rh5 Ba1 Bf8 Kb2 Nc6 b8N Bg7 b7 Nd4 Rc5 Nd5 Qe2+ f2 Ngf3 Nc3 Ne5 Qf6 d8B Bg4 Nbd7 Nb1 b8N Bf3 Bc8 Rh6 Na6 Rb8+ Bb3 Qe1 Nf1 Qa5 Bf7 c6 Nc7 Rh5 Ne8 Rb6 Bc7 Qb5 Bg8 Qd3 Bc4 Qdf5 Bb5 Rg5 Ba2 Rh5 Nd2 Rg5 Re1 h1N Nf1 h2 Bb8 Ng3 Bc7 Nb3 Ba4 h1Q Qc4 Rg4 Nb8 Na3 d7 Qf7 d8N Nh5 Nd7 Q7f6 Nf7 Nb1 Nh8 Nc1+ Qb5 Rd4 Nef7 Nf4 Rce5 Nfe2 Rc5 Qhh7 Bb8 Kh1 Bh2 Ng3 Ree5 Nge2 Re7 Rc4+ Nfe5 Nd4 Bc2 Ra4 Bd1 Ra5 Ba4 Ncb3 Qc4 Rab5 Qe2 Nc1+
1b4nk/N2Nq3/3B1rr1/q2b1RB1/1p4pb/1B1KN2B/1BNpb1N1/2Q2R1n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 h4 d5 f4 g5 c4 Kg7 a4 e5 c5 b5 h6+ Kh7 h5 b3 a5 g4 a6 b2 f6 b4 f5 e4 c6 e3 a7 Bc5 f7 Bb6 f8B Bc7 f6 Qd6 f7 Ne7 Nd2 b1B Bh3 Na6 Nc4 Bb7 Nf3 Nb8 Rf1 Rg8 Ne1 Na6 Ra5 Nc5 Nc2 Kh8 h7 Bb8 c7 Ne4 c8N Rg6 Kd3 e2 Bg5 e1B Qc1 Ng8 Ne3 Bh4 Rc5 Qf6 Bd6 Qe7 f8N Ng3 Nd7 Nh1 Rb5 Ba2 Ra5 Ba6+ Rb5 Kg7 h8B+ Kh7 h6 Rf6 Ke2 d3+ Kd2 d4 Rbf5 Bd5 Bg7 Kg6 h7 Bac4 h8N+ Kh7 Ng6 Bb5 Kd1 d2 Nf4 Bd3 Nfg2 Rg6 Na3 Be2+ Kc2 d1Q+ Kb2 d3 Nac2 d2 Kb1 Bc7 Bb2 Rb8 a8B Rb6 Na7 Bb8 Bc6 Qe1 Ba4 Qg3 Bb3 Qge5 Na1 Kh8 Kc2 Bd1+ Kd3 B1f3 Bc5 Rbf6 Nac2 Qc7 Bd6 Qa5 Qb1 Bd1 Qc1 Be2+
1RRBn3/N3B3/1q6/R1rB1RqN/b3Rn1r/K1rp4/1Q2N3/2Nk1r1n w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 c5 d4 cxd4 g4 a5 bxa5 h5 gxh5 e6 a6 Bc5 a3 Bxa3 a7 b4 Nxa3 Na6 Nb1 Nb8 Kd2 Ke7 c4 Kf6 Kc2 Ke5 Kb2 Ke4 h4 g5 f4 d5 h6 d3 c5 g4 h7 b3 f6 d2 f5 Ke3 f7 d4 f8B d3 c6 e5 c7 g3 f6 e4 f7 g2 h5 Bd7 c8N Qb6 h6 Ba4 Be7 Qd8 f8R Qd5 Ne2 g1R Rf5 Rg5 Rh4 Nc6 Qc2 Nb4 Nbc3 Nf6 Bg2 Ne8 Ka3 b2 Na2 b1Q Qb2 Qe5 Bh1 Nd5 Bf3 Rb8 a8R Nf4 Na7 Rc8 Rb8 Kf2 Bd8 e3 Bd5 d1N Bd2 Kf1 Bb4 Nf2 Bbe7 Ke1 Nac1 Kd1 Rg4 Nh1 Rh4 Ng2 Re4 Nf4 Ra2 Rh5 Ra1 Rc5 Ra2 Rg8 h8N Rh4 h7 Rg6 Ra1 Rgc6 Ng6 Qf6 h8R Qg5 Nf8 Rc7 Nd7 Rc8 Nf6 R8c7 Qd4 Qb6 Nh5 R7c6 Qb2 Rc8 Nd4 e2 Rg8 e1R Nde2 Rc3+ Ka2 Rf1 Rg6 R3c7 Rc6 Bb5 Rcc4 Rc6 Kb3 R8c7 Ra5 Ba4+ Ka3 Rc8 Re6 R8c7 Rce4 Rc4 Rd6 R7c5 Rc6 Rc2 Rcc8 R2c3+
2R4R/kN2r1b1/3Br3/2rb1b1r/N1Q2R1N/RB3B2/n1pR1K2/2nr2B1 w - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 g5 exf5 d5 c4 b5 cxd5 b4 h4 gxh4 a4 Qd7 a6 Qb5 axb5 Kf7 b6 Ke8 b7 Nd7 b8N Nxb8 f4 Kd8 g4 h5 d4 e5 f6 c5 a7 Kc7 g5 Kb6 d6 c4 f5 e4 d5 b3 d7 b2 d8N c3 f7 e3 f6 e2 g6 c2 g7 h3 d6 h4 d7 h2 Kf2 e1R Qd5 h3 Bc4 Nh6 g8R Re7 Nc3 b1R Nb7 Nf5 d8R Rb5 Bb3 Na6 Be3+ Rc5 Ra3 Rh5 Nf3 Ng3 Nh4 Ne2 Qc4 Nb4 Rd2 Bg7 f8R Nc1 f7 Nba2 Rh8 Bf5 Rc8 Rb8 Rf1 h1R a8B h2 Na4+ Ka7 f8B Rg1 Bd4 h1B Be3 Re6 Bd6 Bd5 Ke1 Rgg6 Rf4 Re7 Kf1 Rge6 Bg1 Re1+ Kf2 Rd1 Na5 Rb4 Bc6 Rb6 Nb7 Bde6 Bf3 Bd5 Bc7 Rg6 Bd6 Rge6
BQ2BR1b/1bb4n/1q2Bb2/2n1Q1Rr/8/1B2K3/N1qBqnR1/1B2rk1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 e4 Ke6 b4 g5 c4 d5 h4 a5 c6 f5 b6 f4 c5 a4 b7 f3 b5 d4 c7 d3 h5 a3 h6 f2 b6 g3 h7 a2 c6 g2 Rh2 g4 Qe1 g3 Nc3 Ra7 Ke3 d2 Nh3 g1N Bg2 f1Q Nf2 d1Q Bd2 Qh4 Nh1 Na6 b8R Bd6 b7 Qf5 Rb1 a1B Na2 Qhf6 Rb5 Bd7 c8B Nh3 c7 Nf2 Bf3 Q5g6 Rg2 Nc5 Ra8 Qff5 b8Q Nf6 Qe2 Re8 h8R Nh7 Rf8 Ra5 Rb2 Rb5 Ra5 Qff6 Bb7 Bc6 Ba8 Bb7 Bh5 Qgf5 Bg6 Qd8 Qe1 Be7 Qe2 Bf6 Qe1 Qd6 Rc2 Qb6 c8B+ Ke7 e6 Bac3 Rh2 g2 e5 g1B Rg2 Bh2 Rb2 Qfc2 Qe2 Qcc1 Bb1 Qcc2 Bd7 Rb4 Ba4 Rh4 Bb3 Bh8 Ra4 Rh5 Rag4 Bg3 Rg5 Bh4 Rgg8 B4f6 R8g5 Ba5 Qa7 Kd8 e7+ Kd7 e6+ Kc6 Qe1 Kb5 Qb8 Rd8 e8B+ Rd7 Ba4+ Kc4 e7 Rd8 Bed7 Re8 Kf4 Kd3 Bb3 Rh3 Qee5 Rh5 Qec7 Ke2 Qe5+ Kf1 Bde6 Qb5 Ke3 Bc7 Rg6 Qb6 R6g5 Rd8 e8B Rd6 Bg8 Re6 Bgf7 Re7 Bfe6 Rg7 Bc1 Qc4 Re2 Qcc2 Rf5 Rg6 Rh2 Rg1 Rh4 Kg2 Bd2 Re1 Rg4+ Kf1 Rfg5 Qb4 Rg3 Qb6 Rg2 Qxe2+
B2R1R1R/2b1bb2/q1N3rB/3bn3/1Q5n/N1N3qk/5Rn1/RK1rq1BB w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 g4 e4 g5 c4 d6 e3 b6 e2 b5 e1N+ Kb2 a4 f6 Ke6 g6 Kf5 d7 c3+ Ka2 h3 f7 h2 d5 c2 d6 a3 g7 h4 b7 h3 b6 Ng2 Be2 Ne7 g8B Ra6 Bf3 Ng6 Ne2 N6h4 Nec3 Qc7 d8R Be7 d7 Nc6 b8Q Ne5 b7 Rg6 f8B Rh7 Be3 c1B Rf1 h1B Rf2 h2 Bgd5 Rf7 Bb6 Rff6 Bh6 Rd6 Rg8 Bd2 d8R Be6 Rh8 Bf7 Ne4 Ba5 Nec3 Rd7 Be3 Qd6 Bc5 Qa6 Qd6 Qd3 b8N Bc7 Nc6 Qa6 Bd4 Qd3 Qb4 Qe3 Kb3 a2 Kc2 Qe1 Na3 Rdd6 Re2 Qg3 Bg1 Rd7 Bfe4+ Kg4 f5 Kh3 f6 Rd6 Rf2 Rd7 Rb1 a1Q Kc1 Qa2 Ra1 Qe2 Kb1 Qa6 Na5 Rd6 Ba8 Rd2 Bec6 Ne1 Bcb7 Bhd5 Nc6 h1Q Nb8 Be8 f7 Neg2 f8R Bef7 Bc6 Bb3 Be4 Bbc4 Nc6 Bcd5 Bh2 Qe1 Bg1 Ne3 Bh1 Neg2 Qb2 Bfe6 Qb7 Bf7 Qb4 Rxd1+
K1Q3qN/3nN3/3N1kq1/5B2/3b1qbq/1nN1b3/3BB2R/NqNQq1rR w - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 Ke7 e4 h5 Ke2 f5 Ke3 c5 d4 h4 b6 c4 b5 g2 e5 a4 d6+ Kf7 d5 f4+ Kd4 g3 Kc5 c3 g6+ Kg7 e6 f3 e7 a3 e8B h3 b7 a2 b6 c2 Bd7 h2 Ne2 f2 Bf5 g1Q Nbc3 g2 Bd2 Nh6 Nc1 Qg5 Be2 Nd7+ Kc6 f1Q b8N Qg4 b7 Qff4 Na6 Qh5 b8Q Qgf2 Nb4 Kf6 g7 g1Q g8N+ Kg5 Qa8 Bg7 Ne7 Qfh4 Rb1 a1B Rb2 Bd4 Qa6 Kf6 Ra2 Nb6 d7 Rg8 d8N Nd7 d6 Be3 Nf7 Qhg6 Nh8 Q1g4 Nb1 Bad4 Nc3 Bb7+ Kc7 Bf3 Qc8 Qg4g5 Rb2 Bg4 Kb7 Rg7 Ka8 Qe1 Nb3 c1Q Nd3 Qb1 Na1 Qgh4 Rc2 Qb3 Nc1 Qg8 Be6 Nf5 Ra2 Ng3 Bf5 Ne4 Rc2 Nec5 Rb2 Nf8 d7 Nb3 d8N Nd7 Ra2 Qff1 Nb7 Qf4 Rf1 h1Q Rg1 Qhe4 Rh1 Qb1 Nd6 Ba7 Ra5 Bed4 Re5 Bab6 Re3 Ba7 Reh3 Be3 R1h2 Bac5 Rh1 Bcd4 R3h2 Q6e8 Bf1 Be2 N3a2 Rg1 Nc3 Bg4 Be2 Qeg6
NQ6/1NR2N2/1BQ5/q5b1/rq1qBnn1/1RN5/1NrN1nKR/3rk1nr w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 d4 Ke7 e4 Kd6 b4 a5 e5+ Ke7 d6+ Ke6 d7 Kd5 b6 Ke4 b7 h5 e6 c5 g5 f5 b5 a4 e7 a3 e8N f4 g6 f3 g7 c4 d5 h4 d6 a2 b6 c3 Be3 c2 Rh2 c1R Ne2 g1R Nc7 h3 Na3 g2 Kf2 Rc2 Rc1 a1Q Nc4 Ra4 Na8 Qd4 Nb2 Na6 b8Q Nh6 g8N Nc5 b7 Qa5 d8N Be7 d7 Bg5 Nf7 Ne6 d8N Nf4 Kg3 Qdb4 Bb6 f2 Qd7 Ng4 Qdc8 Qd4 Nf6+ Ke3 Qc6 Kd2 Nc3 Rh1 Be2 f1Q Bf3 Qfb5 Bd5 Rd1 Nfe4+ Ke1 Nd2 g1N Be4 Qg7 Qa7 Rh7 b8R Qd4 Rb7 Qb3 Qb8 Qbb4 Rb1 Rh4 Rc7 Rh8 Nb7 Rh6 Rg2 h2 Rf2 Nd3 Kg2 h1N Rf6 Rh3 Rh6 Nhf2 Rh4 Rh1 Rh2 Qbc4 Ra1 Qcb5 Ra3 Qbb4 Rb3 Nf4+
n2BbR1K/2Bn1QR1/3R4/5nrR/2Q4b/Q2rk2b/R2rN2R/2Nn2br w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Bh3 f4 Ra2 Qg5 Ra1 Qf5 gxf5 Kd7 Bg4 hxg4 Qa4 Ke7 Qd1 Ke8 Kf2 Kd7 b4 Kd6 e4 Ke5 h4 Kd4 d6 g5 d7 c5 d8R+ Bd7 f6 a5 b6 a4 b5 c4 b7 a3 h5 a2 b6 c3 h6 c2 e5 Ra3 f7 Nf6 h7 Bh6 f8R Ra7 e6 Ra8 e7 Ne8 Nc3 Nc7 e8Q Ra3 Qde2 Na8 Rh2 Rg8 Bb2 c1N h8R Nb3 Qf7 Rg6 Rfg8 Rd6 Rg7 Be8 d3 Nd7 b8R Rd5 b7 Rd6 Rbc8 Rd5 b8Q g3+ Kf1 f2 Kg2 f1N Kh3 g2 Kg4 f3 Kh5 g4+ Kg6 g3 Kh7 f2 Qd6 Bd2 Qg4+ Bf4 Nge2+ Ke3 d4 g1R Nc1 g2 N3e2 Bg3 Rb8 Rg5 d5 Rh1 Qc4 g1B Be5 Nd4 Qdc5 Rb3 d6 Bh4 Qa3 Rd3 Rf8 Nf5 Rb5 Rg2 Kh8 Rg5 Rab1 a1R R1b2 Rb1 Ra2 Rb2 Bg3 Rd2 Be5 N1g3 Ra5 f1B Rb5 Nb8 d7 Ne4 Bc7 Nf2 Rd5 Nd1 Rd6 Na6 Rb8 Bg2 d8B Nc5 Rb5 Bh3 Ra5 Nd7 Rc5 Rg4 Ra5 Nd4 Rag5 Nf5 Rh5 Rg5
Q2b1n2/bQ1R1qBQ/n1q2Q2/5Kn1/BN3Q1q/pB2r1r1/1NQb3R/6k1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kd6 Kd2 f5 Ke3 h5 Kf4 c5 e4 a5 e5+ Ke7 g5 a4 g6 a3 b6 c4 b7 c3 b5 h4 g7 c2 b6 h3 d6+ Ke6 d5+ Kf7 e6+ Kf6 d7 h2 e7 Qc7+ d6 Rh3 d8Q Na6 b8Q Qc6 e8B+ Ne7 Ne2 g1B g8Q g2 d7 Rg3 b7 Ba7 Nec3 g1N Na2 Nf3 Nbc3 Ng5 Bb2 c1B+ Qd2 Re3 Qc2 Bd2 Qh7 Ke6 Na4 Kd5 Bd3 Bh6 Rhd1 h1Q Bg7 Ba5 Qdc8 Bd8 Nb2 Qh3 Rd2 Qh5 Rg1 Qh4+ Rg4 Rg3 Bc4+ Kc5 Ke5 f4 Rh2 f3 Nb4 f2 Rd4 Ng6+ Kf5 f1Q+ Qf4 Nf8 b8Q Qf3 Qcb7 Qfh5 Ke5 Qf7 Qf6 Re3+ Kf5 Rg3 Qf4 Rb8 Qa8 Rb5 Qb7 Re3 Na2 Rbb3 Nb4 Rg3 Rdd2 Rbe3 Bb3+ Rc3 Qa8 Bc7 Qh8 Qa4 d8Q Nh3 Qd7 Bd8 Rd3 Bg5 Qfe4 Bd2 Nc4 Ng5 Qdb7 Qb5 Rd4 Qb6 Bea4 Qc6 Qf3 Rd3 Qh7 Rc3 Re4 Rd3 Re5+ Kd4 Nb2 Rc3 Qf1 Rcd3 Rc5+ Ke3 Rd5 Rc3 Qc4 Kf3 Rd7 Re3 Rh1 Kg2 Rh2+ Kg1 Qg4 Bc3 Qf4 Bd2
R2q1r2/1N1bQNnb/3R4/q5pn/BBqn4/2B1NrQK/1b1B4/3B2Bk w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 h6 Qe2 Bb7 Qg2 gxf4 g5 Ba6 g6 Bc8 Qg5 hxg5 Kf2 Kd7 Kg2 Kd6 h4 Ke5 b4 Ke4 d4 c5 g7 e5 f6 a5 b6 c4 b5 a4 f7 a3 h5 c3 d6 c2 d7 f3+ Kh3 a2 d5 f2 b7 Ne7 g8B Rh7 d6 Ra4 h6 Nec6 b6 Ra5 Bb5 Rg7 h7 Nd4 h8B Nbc6 b8B Nf5 b7 Ra8 Bd2 c1Q Nf3 Ncd4 Ba7 Qc4 b8Q Rg6 Rf1 Ng7 Na3 Rf6 Rfd1 Be7 f8B f1B+ Kg3 Rf4 Nc2 Bd3 Ba4 Bf6 Ne3 Rf5 Kh3 Kf4 Bd5 e4 Ne5 Bc2 Nf1+ e3 Nf7 Be4 Be6 Kf3 Be7 e2 Ne3 Rf4 Bg4+ Kf2 Qb3 e1N Qc3 Kg1 Bf8 Qe7 d8N Bd7 Nb7 Qd8 Bb6 Kh1 Ba7 Bdc6 d7 Bh7 Bb4 Rf1 Be2 Ng2 Qb3 Nh5 Bg7 Nh4 Bac5 Nhf5 Bg4 Qe7 d8Q Bd7 Qe8 Qd8 Qe7 Rb8 Bh8 Nfg7 Qc3 Ne2 Qce5 Rc8 Qg3 Bb2 Ba7 Ne6 Bhc3 Neg7 Bc1 Ra8 Rd6 Nd4 Bac5 Rf5 Bgd1 Rc8 B1d2 Rb8 Rc1 a1Q Ba7 Qaa2 Ra1 Rf3+ Nf5 Nde6 Bg1 Ra8 Ne3 Rc8 Bac2 Qaa5 Ba4 Nd4+ Ng4 Qg8 Bb5 Qb6 Ra8 Qa5 Bba4 Qf8 Qe4 Qe7 Qe6 Rf8 Ne3 Bc6 Qe5 Qed8 Qe7 Bd7+
5Rrn/Rr1n1B1N/q3BbnR/BN1NNpn1/8/B4n1r/2k1B3/4b1KQ w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kd6 e4 f5 e5+ Kd7 d6 Ke6 g5 Kd5 d7 Ke4 e6 c5 e7 a5 e8B h5 g6 a4 b6 a3 b5 a2 d5 h4 b7 c4 b6 c3 d6 c2 g7 h3 Ne2 g1N Nf4 h2 Bf7 g2 Kf2 Nh6 g8B Qf6 d8N Rh7 d7 Nf3 Ba3 c1N Nde6 g1N d8B Nd7 b8N Bb4 b7 Ng5 Nc6 Nce2 b8R N1f3 Nd5 Nf4 Nf8 Ng6 Ne5 Qa6 Be2 Be1+ Kg2 Rg7 Nh7 Ra7 Be6 Nhf7 Ba5 Nfh8 Rf8 Rb7 Bgf7 Rg8 Qc1 Kd4 Qc6 Ke4 Nbc3+ Kd4 Nb5+ Ke4 Rf1 h1R Qc1 Rh6 Rh1 Rh3 Kf1 Rg3 Rh6 Rh3 Rb1 a1B Kg2 Bb4 Qh1 Be1 Rc1 Bd4 Rcc8 Ba1 Ra8 Bac3 Ra7 Ba1 Ng4 Bg7 Ne5 Bf6 Ndc3+ Ke3 Kf1 Kd2 Nd5+ Kc2 Kg2 Nh2 Kg1 Nhf3+
2rbb1r1/7N/Bk1r2B1/N1rq4/R2BR2R/N1nKb2N/Qpn4N/2B2n2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 d4 c5 f4 Kc7 g4 h5 b6+ Kb7 g5 e5 d6 e4 d5 b3 g6 h3 f6 h2 f7 b2 g7 c4 d7 h4 d6 h3 f5 e3 f6 c3 Qa4 c2 Nf3 Rh6 Na3 Ne7 g8B Nbc6 Bh7 Nd5 Kd3 e2 Bg6 Be7 f8N e1R f7 Re2 Nh7 Nc3 f8B Re5 Bg7 Rc5 Bd4 Qg8 d8R Qd5 Rf8 Bd7 Rf4 Rc8 Re4 Be8 d7 Bd8 Qb3 Ka6 b7 Ka5 Qa2 Kb6 b8N Nb4+ Ke3 Kb7 Nc6 Kb6 Rg1 h1R Na5 h2 Rgg4 Rg1 Rh4 h1N Ba6 Ng3 Nh2 Be7 d8N Nf1+ Kf4 Rg3 Nf7 Bd8 Nfg5 Rg2 Nh3 Rg1 Bce3 c1B Kf3 Nc2 Bd2 Nb1 Ke2 Nc3+ Kd3 Rg2 Bf4 Be3 Bg5 Bg1 Bc1 Be3 Bh5 Rd6 Bg6 Rg5 Qb1 Qb3 Bf5 Be7 N3c4+ Kc7 Ra4 Rg8 Na3 Bd8 Qa2 Kb6 Bg6 Qd5
1bR1r3/1q6/3QbnBR/Q1Rn3B/6R1/n2R1Kr1/p1rb1N1r/2k1NQR1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 d4 Kd6 h4 c5 b4 e5 h5 a5 b6 f3 b5 a4 h6 e4 h7 c4 b7 g4 b6 a3 g7 c3 f6 c2 f7 c1B Nh3 a2 Na3 Qe8 Be2 Nf6 g8B Nc6 b8R Ne7 b7 Bg7 f8R Qc6 Qf1 Be6 Rbc8 Bd2 Rg1 e3+ Kg3 f2 b8Q+ Qc7 Nc2 Bh6 Qa7 Qb7 Rc5 Re8 Bf7 Bf4+ Kg2 g3 Bg6 Be5 Beh5 e2 Kf3 g2 Qa5 e1R Rd1 Re2 Ne1 Bh2 Rg8 Be5 Rh1 g1R Rdc1 Rg2 Rg1 Bh6 Rd1 Rc2 Rd3 Bd2 Rg7 Rh2 Rg4 Rhg8 h8R Bg3 Rh6 Bgf4 Qg2 f1N Nf2 Ne3 Qf1 Nc4 Rg1 Na3 Rg4 Kd7 Rg1 Bb8 Rg4 Qa6 d6 Qb7+ d5 Rgf8 Be4 Rf7 Rg8 Rg7 Rg1 Rgg2 Rg4 Nc8 Beg6 Nb6 Ne4 Kd8 d7 Ke7 Nf2 Kd6 d8R+ Ke5 Bf7 Kf5 Rdc8 Ke5 Ne4 Kf5 d6+ Nbd5 d7 Ke5 d8Q Kf5 Bhg6+ Ke5 Re3 Kd4 Nf2+ Bf4 Be4 Bd6 Bh5 Bb8 Qa7 Rc4 Bd3+ Kc3 Qd6 Kb2 Bdg6 Rc2 Qa5 Kc1 Rd3 Rg3+
3Br3/q6B/n2n2Np/2R1r2N/1kNq1KR1/b4n2/2BnR2R/qBb3RQ w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kd6 Kd2 c5 Ke3 f5 g5 a5 g6 h6 b6 a4 b5 c4 b7 a3 b6 c3 g7 a2 Nh3 g1B+ Kf4 c2 e4 g2 e5+ Kd7 e6+ Kd6 e7 Ra6 e8B Rh7 Ba4 Qe7 Bd3 Qd8 Rh2 Ne7 g8B Nd7 b8N Nc5 b7 Qc8 Na3 Qe6 Nc6 Rh8 b8R Qf6 Re8 Qf7 Bh7 Qf6 Ne5 Ra5 Ng6 Nc8 Re2 Na6 Qf1 Bf2 Qh1 g1N Bb2 c1N Bb1 Nf3 Bac2 Nb3 Bc3 Rc5 Ba5 Nbd2 Bb6 Be7 Bd8 Re8 Nc4+ Kd7 d6 Kc6 d7 Kb5 d5 Be3+ Kg3 Nd6 Nhf4 Kb4 Nh5 f4+ Kg4 N6e4 d6 Re5 Bc7 Qh8 d8R Bf8 d7 Nd6 Ra8 Qg7 d8R Qf7 Bb6 Qa7 Rdc8 Be7 Bd3 Bf8 Bbc2 Be7 Rf1 a1Q Rg1 Qd4 Rc5 N2e4 Rd8 Bg5 Rd7 Ne1 Rf7 f3 Rf4 f2 Ba4 f1Q Bb3 Nf3 Bd8 Qfa1 Bb1 Bd2 B3c2 Bc3 Rf7 Bc1 Rf4 Ned2 Kg3 B3b2 Rg4 Qf2+ Kf4 Ba3 Bd3 Qfd4+ Be4 Qdc3 Bec2 Qd4+
5qN1/1k1NQ1pr/b1q2b2/Q5n1/Q2RR1N1/3b1N1b/B2KB2N/r1Nb1r2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 h6 Nh3 Nc6 Ke1 Nce7 Bg5 f4 Ng1 Nf5 gxf5 hxg5 h4 d5 e4 Kd7 b4 Kc7 c4 a5 e6 d3 h5 a4 c5 a3 e5 f3 e7 a2 e8N+ Kb7 c6+ Kb6 c7 g4 f6 g3 f7 f2+ Kd2 d4 e6 g2 e7 Qd6 h6 Bg4 c8B Qc5 h7 Rb8 Nc3 Qc4 Nf6 Rb7 e8N Nh6 Qa4 Bh5 Rh4 Bd6 f8Q Ra7 Be2 f1B Ng8 Bb8 Re4 Bh2 Be6 Bf3 Qe7 Qd5 Nef6 Be5 Ng4 Nf7 Nh2 Bg4 Ngf3 g1Q Rd1 a1R Na2 Qc6 Nc1 Bf6 Ba2 Rd7 Qa5+ Kb7 b6 Qf2 b5 Ng5 Qa4 Bgh3 Qa5 Kc8 b7+ Kb8 Qa4 Kc7 b8N Kb7 b6 Rc7 Qd6 Rf7 Nd7 Rf8 Nde5 Rf7 Re1 Rf8 Neg4 Rf7 Kd1 d2 Qc5 Rf8 Kc2 d1B+ Kd2 d3 Rd4 Bc2 Qe7+ Kb8 b7 Bb1 Kd1 d2 Qa5 Bd3 Qa4 Ba6 Qa5 Ka7 b8N+ Ka8 Nd7 Kb7 Qa4 Qd6 Kc2 d1B+ Kd2 Qc6 N8h6 Rhg8 h8Q Rf7 Qh7 Rh8 Qf5 Rh7 Ng8 Rf8 Qfa5 Rf7 Re4 Qfc5 Rd4 Qa3 Bb5 Bd3 Ree4 Qac5 Qe6 Qf8 Qe7 B3c2 Bf1 Bcd3 Be2 Be5 Ng1 Rf1 Ngf3 Bf6
Bb1B1q1B/1N2Rp2/N3qQ2/2n2b1N/rBRb1Rb1/1R2b1n1/3K2kq/5R2 w - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 Kd7 e4 Kd6 d4 h5 b6 c5 b7 c4 g6 c3 e5+ Kc7 b5 h4 b6+ Kd7 d6 Ke6 d5+ Kf5 g7 Ke4 d7 c2 e6 a4 e7 a3 e8R+ Qe7 d8B g2 d6 g3 d7 h3 Qd6 a2 Ba3 c1B Nd2+ Ke3 Qf6 h2 Ne4 Qe6 Ne2 g1B Bb4 g2 Nf4 Kf3 Re7 Nh6 g8R Bce3 Nh5+ Nf5 Rc1 a1Q Nd6 Na6 b8N Nc5 b7 Qa8 Na6 Bgf2+ Kd1 g1Q b8R Qg3 Be2+ Kg2 Rf1 h1B Rg4 Rh7 Re4 Qh2 Rcc4 Ng3 Nb7 Rg7 Bda5 Rg4 d8B Bd4 Rf4 Bfe3 Bac7 Bh6 Be5 Bf8 Re8 Bd6 Re7 Bd7 Rc8 Bb8 Bf3+ Kh3 Bd5 Be4 Rc3 Bf5 Rb3 Nce4 Rc4 Nc5 R4f2 Re4 Rf4 Kg2 Ke1 Bg4 Bc6 Qd6 Bd5 Bdf5 Bc6 Qe6 Bd5 Bg1+ Kd2 Bge3+ Kc2 Bc3 Qh8 Bc1 Bb6 Be2 Nd8 Be1 Ba3 Nd3 Rc5 Bc7 Ba5 Qb8 Ba8 Bc3 Nb7 Ra4 B3b4 Be3 Rcc4 Beg4 Qh6 Qg8 Bh8 Bb8 Bd8 Bcd4 Qg7 Qf8 Qf6 Bg1 Kd2 Nc5 Qh4 Bgf2 Qf6 Bfe3+
1k3qr1/2R1pBBn/bqb1R1Q1/n2b1qR1/7b/1B2B1Q1/K3N1n1/B2B1N2 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 f4 d5 fxg5 f4 e4 dxe4 g6 Ra6 g5 Rd6 h3 Rd5 cxd5 Bxh3 Qc2 Bf5 Qd1 Bc8 d4 Kd7 Kd2 c5 Kc3 Kc7 Kb3 h5 g7 f3 d6+ Kb7 b6 f2 g6 h4 d5 h3 d7 e3 d6 e2 Qc2 e1N Nd2 h2 Be2 f1B Bd1 Qc7 d8B Nh6 g8B Nf5 Ra2 Ka8 g7 Nh6 d7 Bfa6 Qg6 Ng4 b7+ Ka7 Bd5 Nc6 g8B Nf6 b8B+ Ka8 Ra4 Bh6 Rc4 Bg5 Nf1 Bcb7 Be3 Qe5 Ka3 Bh4 b4 a4 Bh6 Qe6 b5 Na5 b6 Nh7 Ne2 Qe4 Rg1 h1B Bge6 Rg8 Rg5 Qg4 Rc3 c4 Bg7 Be4 Rc2 c3 Bbe5 Qf3 Bdc7 Qf8 Bf7 Bf3 Rc1 c2 Bb3 Bbe4 b7+ Ka7 Bbc4 Ng2 b8R Ba8 d8Q Bae4 Kb2 a3+ Ka1 a2 Qdd6 Ba8 Rb6 Bfd5 Bef6 B8b7 Qg3 Ba8 Bd8 B8b7 Rd6 Kb8 Bb6 Ba8 Kb2 B8b7 Ka3 a1Q+ Ba2 Qe5 Be3 Qd4 Bb3 Qb6 Ka2 Ba8 Ba1 B8b7 Rb1 c1Q Re6+ Qcc7 Rb2 Qf4 Rc2 Ba8 Rc7 Qf5 Ng1 B8b7 Ne2 Bbc6
2b5/1N1K4/3nnkB1/1Nr3Nb/N2R1p2/bQ2NbQ1/b1B1R3/q1bn1RN1 w - - 0 1 illegal: No possible last move
BK1b4/1r3B2/4RBr1/nq1R1RRr/4p1Rb/3bb3/1bQb4/1N1NkNB1 w - - 0 1 illegal: No possible last move, all moves rejected
1rq1R1B1/4Q3/3rNp1R/1qr2B1n/3b1K1B/1r1BR1r1/BN4q1/N1k1r1R1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Na6 g6 Nb8 h3 f6 Qd3 Nc6 Qc4 Ke7 Ra3 Bb7 Ra1 Ne5 Qd3 Bd5 Qd1 Bf7 gxf7 g5 h4 g4 Ra6 Bh6 Ra1 Nf3+ Kf2 Ng5 hxg5 Bg7 Ke1 Bf8 Kd2 Kd6 c4 Ke5 e4 h5 b4 d5 b6 a5 b5 d3 c5 Kd4 b7 a4 b8R g3 e5 h4 c6 g2 e6 a3 c7 h3 c8B h2 b6 a2 b7 f3 e7 f2 e8B Rh5 g6 Bc5 f8N Nh6 g7 Nf5 g8B Ng7 Be2 f1Q Bf5 Qc8 Nh3 g1R Na3 Rg3 Bef7 Ba7 Rg1 h1Q Nf4 Qhg2 Qe1 Bb6 Rb1 a1R Rb3 Rb1 Nc2+ Kc4 Ra3 Bd4 N8e6 Rb3 Na1 Rhg5 Ng6 Rh5 Ne5+ Kb4 Nc4 Rhg5 Kd1+ d2 Nb2 Kc3 Ba6 Qb5 Qe2 Qcd7 Re8 Qc8 b8R Rh5 Rb7 Rb8 Qe1 Qb4 Bad3 Qb5 Qf2 Rhg5 Ke2 d1R Rbe7 Rh5 Bg5 Rf1 Bh4 Rhg5 Nc2 Ra1 Ra8 Ra6 Raa7 Rd6 Na1 Qb6 Nd8 Bc5 Bfe4 d4 Ra5 Rf5 Bb1 Ra3 Bfa2 Rb3 Rb5 Rfd5 Re5 Qa5 Rh5 Ba7 Rh6 Bb6 Bf5 d3+ Kd1 d2 Ke2 d1R Bbd3 Rb1 Rb4 Qa4 Rbe4 Bd4 R4e6 Rc5 R6e7 Qh3 Qe3 Qb5 Qe6 Rf1 Qd7 Rb1 Re3 Re1+ Kf2 Kd2 Ne6 Qh1 Qb7 Kc1 Qe7 Rg2+ Kf3 Rg3+ Kf4 Qhb7 Re5 Qg2 Re3 Nh5+
2NbB1bn/1nk1Kpq1/QN3r1R/1Br3Q1/1NN1p2N/R3bR2/2b2r1N/8 w - - 0 1 illegal: No possible last move
R4BR1/nRNB1q2/3Q2p1/k1B2q1p/3r1b1K/2Nbrr2/n4R1r/1Q2R2R w - - 0 1 legal: proof: c4 b5 cxb5 h5 g4 f5 gxf5 d5 e4 g6 exd5 Qd6 a4 Qxh2 a5 Qd6 a6 Qd8 Na3 Bxa6 Nb1 Bc8 f4 Kd7 Kf2 c5 Kg3 Kc7 d4 Kb6 b4 e5 f6 a5 f5 e4 f7 a4 d6 c4 d7 e3 f6 c3 d5 a3 d6 c2 Nf3 e2 Nd4 e1R Nc3 a2 Kh4 Ne7 Be3 c1R Bh3 Bh6 f8R Bb7 f7 Qc8 d8R Qc4 d7 Rc2 Qb1 Bf4 Ne6+ Qc5 Bg1 Na6 Nc7 Rg2 Rb8 Ra7 d8Q Nc6 Ra8 Re3 Bd7 Qf5 Qf6 Rh7 Qd6 Rg7 Rg8 Bc8 f8B Rf7 Be8 Be6 Bd7 Bc4 Bf2 Bd3 Re1 Kb7 b6 Rf6 b5 Nab4 Rh1 Ra3 Re1 Na7 Rh1 Rf3 Bc5 Re6 Qf1 Ree3 Re1 a1Q Qg1 Rb3 Qf1 Nc8 Ra2 Na7 Rf2 Qa2 Qg1 Kb8 b7 Rb1 Qf1 Qaf7 Qg1 Rd1 Qf1 Be4 Qfd3 Rd2 Qb1 Bd3 Bd4 Nac6 N3d5 Bf1 Nc3 Na2 Bc5 Be2 Bb4 Ka7 b8R Rd1 Ra8+ Kb6 Ba3 Rd4 Bc5+ Kb7 b6 Na7 Ne8 Ka6 b7+ Ka5 b8R Bb5 Nc7 Bd3 Rb7 Rh2+
4n1BR/2pR2r1/1K2qnr1/4p1N1/Q3q1r1/B5R1/b1RBR3/q1Nk1nRQ w - - 0 1 illegal: Other
qqR3N1/1rb3B1/bN1RN2p/1Q3N1B/R2p4/2k1br1K/5N2/qBbnR3 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 f4 hxg5 Nc6 g6 Nd4 g5 Nf5 d4 cxd4 exf5 Bb7 f3 Bxf3 Ra4 Bb7 Ra1 Bc8 Kf2 e5 Kg2 Ke7 c4 Kd6 b4 a5 g7 d3 b6 d2 f6 e4 g6 Ke5 c5 Kd4 c6 d5 b7 a4 b8N h6 b5 a3 c7 a2 f7 e3 b6 e2 b7 e1B Qh5 d1Q Nh3 Bc3 Nf2 Ba5 Bd3 Rh7 Nd2 Bc5 f8N Ne7 g8B Qb3 g7 Kc3 Bb1 Nf5 Ne6 f3+ Kh3 Ne3 Re1 Nd1 Nf1 Be3 Bf7 d4 g8N Qf8 Nd7 Qbb4 b8R Ba6 c8R+ Bc7 Nb6 Qb3 Nd3 f2 Ng3 Rg7 Qb5 f1Q+ Kh2 Rg4 Nf2 Rf4 Nf5 Ra7 Bh5 Rb7 Ba3 Qa4 Rd8 Qab4 Rd7 Qa5 Ra8 Qb8 Bf8 Qg1+ Kh3 Qa3 Bc2 Qa4 Rc1 a1B Rd6 Bb2 Bg7 Qa3 Ra1 Bbc1 Bb1 Qh1+ Kg3 Qb2 Ra4 Qe4 Kh3 Qa1 Rh1 Qa7 Rc8 Qb8 Rf1 Qc6 Rf8 Qce8 Re1 Qec8 Re8 Qa8 Rf8 Qcb8 Rc8 Rf3+
2RQ2qk/4N3/p2N4/3N2n1/r2b2Nq/1KR5/n1rr1Qp1/BnRNN1rB w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 f5 d4 Kf7 Kd2 Kg7 Kc3 c5 e4 h5 g5 c4 g6 f4 e5 f3 e6 f2 e7 h4 b6 h3 b7 a6 b5 h2 d6 Rh7 e8N+ Kh8 b6 Rc7 g7+ Kh7 d7 Ne7 g8N Qc8 d8Q Ng6 d5 Rd7 d6 Nf4 Qe2 Nd3 Bb2 Bh6 Nef6+ Kh8 Nf3 g1R Bg2 f1N Ng4 Nb4 Ne7+ Bf8 Qf2 Nd2 Ne1 N8c6 b8N Ne5 b7 Nf7 Nbc6 Rb8 Ra3 Ng5 Nd5 Na2+ Kc2+ c3 Nce7 Qc4 Ba1 Rc8 b8R Rc5 Rab3 Ra5 Rc8 Ra4 Ndf6 Qg8 Nfd5 Bg7 Bf3 Rc7 d7 Bd4 Ra3 Rg2 Rf1 Rg1 Bh1 Rc6 Rb3 Rd6 Ra3 Ndf3 Kb3 c2 Nc3 c1R Nd1 Rcc6 Qb6 Rc2 d8N Rd7 Nb7 Rd8 Bg2 h1Q Nd6 Qh4 Bh1 Rd7 Qd8 g2 Bb2 Re2 Ba1 Nd2+ Kc2 Rc7+ Rc3 Nb1+ Kb3 Rd2 Rc6 Nb4 Nc2 Nf7 N1c3 Re2 Rc1 Rd2 Ne1 Ng5 Nd1 Na2 R6c2 Rc5 Rc4 Rca5 R4c7 Rc5 Rc6 Rcc2 R6c7 Nf3 Rc3 Ng5
kNN5/1b2B2p/q1NbQ3/1qB3rR/2p4b/RR1bR1n1/1QKnn1R1/3R4 w - - 0 1 illegal: No possible last move, all moves rejected
N1BBr1rK/kN1Q1p1N/3R4/1p1rN2b/qq6/4bb1B/bR1NRR2/4n3 w - - 0 1 illegal: No possible last move, all moves rejected
3n1b2/2pb1p2/1K2NN2/5Q1Q/kb1B4/B1qN1b1R/1n1RqBB1/B1q1B2b w - - 0 1 illegal: Other
BKbb1B2/QBNp2N1/5NBq/R1BR1p2/3R1rp1/nnk5/q7/N3r1n1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 g5 Kd5 d3 c4 f3 e4 f2 h4 g4 h6 d2 h5 Nc6 h7 Qb6 c5 Qa7 a6 Qb8 b6 Ne5 h6 Qc7 c6 Bb7 a7 Bg7 Nc3 Rc8 a8B Nf3 e5+ Kf5 e6 f6 e7 Rd8 e8N Nd4 Ne4 Bc8 b7 Nb3 b8N Kf4 Ra5 Ke3 Ne2 Kd3 Nd4+ Ke3 Na6 Nc5 Qa4 Qf4 c7 Nb3 Ba3 d1Q Bf8 Nd2 Nb3 Nb1+ Bd3 f1N Na1 Nfd2 Kc5 Nb3+ Kb6 Na3 Ka7 Qg5 Kb8 Qd2 Rd1 Ne7 Bb1 Qa2 Rd4 Rg8 h8R Nd5 h7 Nc3 Rad5 Bh6 Ng7 Re8 Qa5 Re7 Qc5 Qh4 Qa7 Bg5 Bd3 Qh6 Bc2 Bb7 c8B Ne2 Nc7 Ng1 Bb1 Re6 Bc5 Rd8 Re8 Re5 h8B Bh4 Re6 Rf8 Ra6 Ke2 Ra5 Bg5 Nd2 Kd1 Bg6 Re1 Ne4+ Kc1 Nf5 Kb2 Bg7 Rf7 Bgf8 Bh4 Ned6 Kc3 Ng7 Ba6 Bcb7 Bg5 Bc6 Bc8 Bab7 f5 Ba8 Rfe7 Nde8 R7e4 Bcb7 Bd8 Nf6 Rf4
3nQRQB/5r2/2pRNQ1Q/r1Q3r1/bN1Np3/4kq2/1bB1n1Kp/2r1Q3 w - - 0 1 illegal: No possible last move
1k3B1Q/5NNb/r1p2nB1/R4r2/2RqqN2/1qp2prb/1R2B3/N3KBN1 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 e5 g3 b5 axb5 exf4 Qc2 f5 Kd1 f3 Qb3 f2 Kc2 Nd7 Kc3 Bd6 Qd1 Bf8 Kc2 Nb8 Nc3 g5 Nb1 f4 Ra2 f3 Ra5 Bd6 Ra1 Bf4 gxf4 Nd7 h3 Ndf6 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Qd7 Ra6 Qd6 Ra1 Qd8 d4 Kd7 Kd2 h5 e4 a5 b4 g3 e5 h4 d5 c6 e6+ Kc7 g6 g2 g7 a4 b6+ Kb7 f5 a3 d6 a2 f6 h3 e7 h2 e8B Bh3 f7 Qf6 f8N Qf5 b5 Qe4 d7 Qg6 d8N+ Kc8 b7+ Kb8 Nde6 Rh4 Ba3 Bg4 Nf4 Nh6 g8B Ra6 N8e6 Ra5 Ng7 Qg5 Bf8 Qe5 Bg6 Ka7 b8R Rh3 Na3 Rg3 Nc2 Bh3 Bd5 Qe4 b6+ Ka6 b7 Ka7 Rc1 Ng4 Na1 Nf6 Qc2 Rb5 Qc3 Rc5 Be2 f1B Ke1 Ra5 Qe5 c3 Bc4 Bf5 Rc2 Bh3 Rb2 Rb5 Re8 Rd5 Qh5 Rf5 Re5 Kb8 Ra5 Rb5 Qh8 Rf5 Nc2 a1Q+ Rb1 Qb2 Na1 Qb3 Bb5 Kc7 b8N Kc8 Nd7 Kc7 Kf2 Kb7 Ne5 Kb8 Bd1 Bc4 Nf7 Bd3 Rb2 Bc2 Bf1 Bd3 Nge2 g1Q+ Ke1 Qgd4 Rg1 h1R Rg2 Qed5 Ng1 Q5e4+ Rge2 Rh2 Re3 Rd2 Bde2 Rc2 Rb1 Ra2 Rb2 Qed5 Re5 Q5e4 Rac5 Ra6 Ra5 Bc4 Rec5 Be6 Rc4 Bd5 Nd8 Bg8 Nf7 Bh7
R1n4k/r4Rpr/1BKB2R1/2R1Q3/N4pB1/5qpq/R2NQ3/Rbr3rn w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 f4 exf4 a3 h5 a4 hxg4 axb5 a4 Qb3 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Ra6 Kf2 Ra7 Ke1 Ra8 Ra3 Kf8 Kf2 c5 e4 f5 h4 f3 Ke3 f2 d4 g3 h5 c4 a6 c3 e5 c2 a7 f4+ Ke4 Kf7 e6+ Kf6 h6 Qf8 e7 Bh3 e8Q Bd7 h7 Bc6 b6 Nd7 b7 Qd6 b8R Ne7 Rb5 Nc8 Nc3 Rg8 h8R Ncb6 R8h6+ Kg5 Bh3 f1Q Qe2 Rd8 a8R Qf6 Bg4 Qh3 Rg6+ Kh4 Ra7 Ne5 Rf7 Nc8 Bd2 Bd7 d6 Bf5+ Kd5 Nd3 d7 Nf2 Q8e6 Rge8 Kc6 Re7 d5 Rh8 d8B Qe5 Be1 Qe3 Bb6 Rd7 Ra5 Qe4 Ra8 Ra7 Qe5 Qe3 d6 Qd3 Rb3 a3 Rb2 a2 d7 a1R d8R Rh6 Ra2 Rh5 Re6 Kg5 Na4 Qe3 Bb4 Qa3 Ree7 Kh6 Rd5 Kh7 Nf3 Kh8 Re6 Rh7 Nd2 Qf3 Bd6 Be4 Rf1 Nh1 Rg6 Rd1 Rf2 Rg1 Rf1 Bf5 Rfa1 c1R+ Rc2 Qa3 Rdc5 Qd3 Rca2 Qf3+ Qd5 Bb1 Qde4 Qa3 Qe5 Qf3+
3B2Q1/2npp1bn/1N2n3/k1B4R/p1B1rQ2/1b1Q2p1/1K3BBB/N3Rb1r w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 b5 e4 f5 exf5 c5 axb5 cxd4 Ba3 a4 Bc1 Qa5 bxa5 Rh6 Na3 Rh7 Nb1 Rh8 Kd2 Kd8 c4 Kc7 Kc2 g5 h4 d3+ Kb2 g3 f4 g2 f6 d2 f5 g4 c5 Ra7 a6 Bg7 h5 Rh6 c6 Kb6 c7 Bf8 f7 Bg7+ f6 Ra8 f8Q Rg6 h6 Ka5 a7 Kb4 h7 Nc6 h8B Rh6 b6 Ne5 b7 Rh3 b8B Rc3 f7 Rc5 Bc4 Bh6 Na3 Ra5 Nc2+ Kc5 Rh5 Kb6 Ne2 g1N Nf4 Rc5 Nd5+ Ka5 Nb6 Nef3 Bd4 Ne2 Bf2 Ba6 c8Q Nf4 Bc7 Nf6 Bd8 N6d5 Qb8 Nc7 Qg8 Rf5 f8B Nfe6 Bg7 Nfg5 Bgd4 Re5 Bc5 Re4 Qf1 d1B Bf4 Bb5 Bh2 g3 Qd3 Nh7 Rb1 Ba6 Na1 Bb3 Re1 Bb5 Qb7 Rc8 a8B Ba6 Qbd5 Bg7+ Qe5 Rb8 Nc8 Rb4 Nb6 Rh4 Bg2 Rh3 Bcd5 Rd4 Qf4 Re4+ Qd4 Bf1 Bc4 Nf6 Qd3 Rh4 Bhg1 Rh1 Bh2 Nh7+
5b1Q/3RR1Nb/qR3R1B/bbn5/Q3RbRq/K1NQ1r2/B3qk1n/3n2r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 Kd2 f5 Kc2 h5 Kb3 c5 g4 a5 d6 h3 b6 Kh4 g5 Kg3 g6 f3 d7 h4 e5 f4 b7 c4+ Kb2 h2 d5 c3+ Ka2 c2 g7 h3 d6 f2 b5 f3 b6 a4 e6 a3 e7 Na6 e8Q Qh4 d8R Nh6 b8Q Bf5 g8R+ Ng4 b7 Nc5 Rd7 Bh7 Bh6 c1B Qg6 Bf4 Bc4 f1Q Qa4 f2 Nc3 Qe2+ Qgc2 f1Q Re1 Kf2 Nf3 Ra7 Nd4 Ra8 Rgg7 Rg8 Rg1 h1B Ne6 h2 Rge7 Bc6 Ng7 h1N Re4 Nh2 Rg4 Ra7 Qe8 Ra8 b8R Bb5 Rb6 Rb8 Rde7 Rb7 R7e6 Rf7 d7 Rf6 d8R Rf7 Kb1 a2+ Kb2 a1B+ Ka3 Rf6 Rd7 Rf7 Nd5 Bc3 Ba2 Ba5 Qd3 Rf6 Ree7 Rf5 Rb1 Rf7 Rb3 Qa1 Rbg6 Qaf6 Rb1 Qa6 Nc3 Ng3 Qb8 Bg5 Qd8 Rf3 Qac2 Bc4 Ne6 Nf5 Rg3 Bg7 Rb6 Bb5 Qa4 Ne3 Rf6 Bf4 Rg1 Nd1 Rg5 Bh8 Qe8 Rg6 Qb8 Bg7 Qh8 Bf8 Ng7 Rh3 Rgf5 Rg2 Rg5 Rg1 Rg4 Rf3
Rq1nQ1rk/N4R1N/1n5K/2bRRq1Q/2bR1n2/2N2rr1/1RB3r1/B3r1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 f5 b4 Kf7 e4 Kg7 g4 h5 d4 c5 b6 c4 g5 a4 e5 a3 d6 c3 d7 c2 d5 h3 e6 h4 g6 h2 b7 a2 b5 h3 b6 Ne7 d6 Rg8 Bd3 Nd5 e7 Nc6 e8Q Ra3 b8R Kh8 b7 Nb6 Nc3 Be7 Bb2 c1N Bc2 Ne2 Rb1 a1B Ra8 Rb3 b8R Ba6 Rb7 Qb8 d8R Bc4 d7 Bf8 Qd5 Bc5 Rd1 Ra3 Rd4 Ra2 Nb5 Ra3+ Bc3 Ra2 Rc8 Nd8 Na7 Ra3 Rcc7 Bb2 Kf2 f3 Ke3 Nf4 Ne2 f2 Re1 f1R Qdf7 h1R g7+ Kh7 Qd5 h2 Qf3 Rhg1 Qd5 Nc6 d8R h1R Rf7 Rg2 Qf3 Rfg1 Rd5 Nd8 Qg4 Bc1+ Kf3 Be3 Ba1 Bf2+ Nc3 Rb3 Ree7 Re1 Ree4 Bg1 Ree5 Rhh2 Qg5 Rf2+ Kg3 Rhg2+ Kh4 Rf3 Qg4 Rfg3 Kg5 Ra3 Ne4 Raf3 Nc3 Rf8 g8N+ Kh8 Ne7 Rg8+ Kh6 Ng6 Qh5 f4 Na4 Rd3 Nc3 f3 Rg5 f2 Rge5 Nc8 Rb2 f1Q Na4 Qf5 Nc3 Rf8 Ng8 Nf4 Nf6 Rfg8 Nh7 Nb6 Ree4 Rde3 Ree5 Ref3
Nn3qk1/2rR2B1/3RNRKq/3Bq3/1rRq1NBB/2r3b1/qn2bB2/n3Q3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 c5 b4 f6 g4 Kf7 d4 f3 d6 f2 b6 a4 g5 c4 g6+ Kg7 b5 h3 d7 a3 Kf5 h2 e4 c3 b7 c2 d5 h4 b6 h3 e5 a2 e6 Ra4 d6 Rah4 e7 Ra4 e8R Qc7 Nc3 Rh7 Nge2 Rb4 Be3 c1R Nb5 Rc3 Rc1 a1N Rd8 Kh8 Rg1 h1Q Nf4 h2 Qe1 Qg2 Be2 f1Q Bf2 h1Q Bg4 Qfc4 Rf1 Qd4 Bh4 Rf7 g7+ Kh7 Rf3 Qa2 Bf2 Be7 Rd3 Qh2 Rf8 Qd8 Nc7 Qe8 Rcd1 Bd8 Na8 Bc7 Re3 Re7 Re6 Qh1 d8R Bd7 Rc8 Bb5 d7 Be2 d8B Be5 Rc5 Rc7 Rc4 Qb5 Rd6 Nh6+ Ke6 f5 g8B+ Kg7 Rf6 Nf7 Rd7 Qh3 Ke7 Nd6 Bd5 Qh8 Rd2 Na6 b8N Qba5 Nc6 Nb8 Ke6+ Kg8 b7 Qac5 Be7 Qca5 Nd8 Qb5 Nh5 Bg3 Nf4 Qba5 Bf8 Qac5 Bg7 Qca5 Ng6 f4 Rd1 f3 Nf4 Nf5 Rd2 Ne3 Rd6 Nd1 Kf5+ Rf7 Rd3 Nb2 Nde6 Rc7 Kg6 Qac5 Rd1 Qe5 Rd7 Qcd4 Rd3 Bh2 Bh4 f2 Rd2 f1Q Rd6 Nd7 b8B Bg3 Ba7 Nb8 Rd7 Qc5 Rd3 Qf8 Bg1 Qf2 Rd1 Qfd4 Bf2 Qde3 Be4 Q3c5 R1d6 Qcd4 Bd5 Qh6+
k4n1R/N1K2n2/rbn2b1Q/3Rr2R/2Nb2B1/1R1n1bR1/3B3n/1bq1RBQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8R h3 d5 c2 g5 a3 d6 a2 g6 Qg5 d8Q Nd7 g7 Rh5 Ba3 c1B Re5 Ne7 g8B Be3 Nd2 Bd4 Re3 Nc6 Bb4 Ra6 Qf6 Ka8 Nc4 Be7 Bh7 Nf8 d7 Bec5 d8R Qh6 Rc1 a1B Ne2 Rg5 Bd2 Bac3 Rg1 h1N Re5 h2 Rdd5 Nf2 Rg3 Nd3 Rb1 Ba1 Nc3 h1N Re1 Nhf2 Rb3 Ne4 Qb1 Nd6 b7+ Ka7 b8R Nf7 Bg6 Bb7 Bh5 Bb2 Rbd8 Ba1 R8d7 Ka8 b6 Bb2 Nb5 Bbc3 Kg2 f3+ Kh2 f4 Na7 f2 Rde7 f3 R7e5 Qg7 Bg4 Rf5 Qh6 Qg5 Rh3 Bb2 Kg3 Bbc3 R5e3 Re5 Rh5 Bb2 Bg2 f1B Qa1 Be2 Bf1 f2 Rf3 Bc8 b7+ Kb8 Re3 Bf3 Qc1 Bf5 Qa1 Nf4 Rec3 Bb1 Rce3 Kc7 b8R Nd3 Rbd8 Nh7 Rh8 Nf8 Bb4 Kb7 Bd2+ Ndb4 Rec3 Ka8 Rd3 Qg6 Rdc3 Qc2 Kf4 Qc1 Rd3 Bd1 Rg3 Bf3 Bfh3 f1N Bg2 Nh2 Bf1 Ba2 Qb1 Re7 Qbg6 Nd3+ Kf5 Bb1 Qgg5 Nfe5 Qe3 Re8 Qg1 Nf7 Re2 Bf6 Re7 Ng6 Ke6 Bbd4 Kd7 Nf8+ Kc7 Bg2 Rhf5 Bf3 Re1 Re5 Rh5 Bb6+
1nqk1rb1/4n1b1/Q1rbb1K1/RRNN2b1/B1r2BB1/B1BN4/B1r5/r6Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 Kf3 f5 g4 c5 d4 a5 b4 a4 e4 h3 e5 h2 e6 c4 g5 h4 g6 h3 d6 a3 e7 a2 g7 c3 b6 c2 d5 Ra4 b7 Nh6 g8B Nd7 b8B Ra7 b5 Qb6 Ne2 Ra8 Nbc3 Qd8 b6 Ra4 b7 Rc4 Ba3 c1B Rg1 h1R Rg5 h2 Bh3 Re1 Bg4 h1R Rh5 Be3 Nc1 Re2 Nd3 Rc2 Ba7 Bg7 Bd4 Nb8 Qc1 Rh4 Qh1 Be6 Rb1 a1B Rb5 Qc7 Ra5 Kd7 e8B+ Kd8 Ba4 Rc6 d7 Qc8 Bf7 Rf8 Rg5 Na6 b8B Bb2 Bbd6 Nb8 B4e5 Bbc1 Bdb4 Bc5 Rh5 Ke7 d8N Bd6 Nb7 Be3 Nbc5 Kd8 N3e4 Bd2 Bbc3 Bc1 Nf6 Bd2 Kg2 f3+ Kg3 f2 Bf4 f1R Rg5 Ra1 Rb5 Be5 d6 Bc1 d7 Bd6 Nd5 Bd2 Bfe5 f4+ Kf3 Nf5 Ke4 f3 Bf4 f2 Bg8 f1B Rh5 Be7 Bf7 Bh6 Ke5 Bd6+ Kf6 Bg2 Kg6 Bg7 Nf6 Ke7 Bh6 Qa6 Bd1 Bgd5 Nb3 Ng3 Bf3 Rd4 Bg4 Qc8 Re5 Nf5 Ra5 Rc5 Bg5 Re4 Bh4 Bg5 Bg3 Rc7 Bh2 Bc4 Rec5 Bed5 Bf4 Rca2 Rcb5 Rc2 Nbc5 Bb3 Be8 Bg8 Bf7 Bd5 Be6 Bc6 Beb3 Bcd5 Ba2 Bde6 Nd5+ Kd8 Qh6 Rc6 Qh3 Rc4 Qh1 Re8 Nf6 Ke7 d8Q+ Kf8 Qb6 Ke7 Qb7+ Kd8 Nd5 Rf8 Qa6 Ne7+
R7/rN1N4/4qB1n/1n2bBB1/B1Q2n1b/q2BRNkB/1r1Qb3/1Kbb3b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 h4 Ke6 b4 Kf5 e4+ Kf4 c4 f5 Kc2+ Kg3 h5 d5 h6 g5 h7 a5 c5 f4 b6 f3 b7 d3+ Kb2 a4 b5 a3+ Ka2 d4 b6 d2 c6 d3 e6 f2 c7 Qf6 e7 Nh6 e8B Na6 b8Q Qe6+ Qb3 d1B e5 Bb7 c8B Be2 Bh3 f1Q Bd2 Ra7 Qd6 Be7 Ba4 Nc7 Nf3 Nb5 Nc3 Qc1 Re1 Rd8 Be3 d2 h8B d1B Qd2 Be4 Bd7 Rb8 b7 Bd5 Qc4 Bc6 Nh2 Bh1 Nf3 Bd8 Bc2 Be7 Bf6 Bd8 Kb3 a2 Na4 Be7 Nc5 Bd8 Rb1 a1B Bc8 Bd4 Ra1 Bc3 Ra6 Be7 Ka2 Qa3+ Kb1 Bb2 Qa2 Bc1 Bd3 Qd6 e6 Nc7 Qac2 Raa8 Nh4 Kh2 Bf2 g3 Qf4 Bh5 Qe4 g4 Re3 g2 Bh8 g1N Qd2 g3 Qf4 Bf6 e7 Ne2 e8B Be5 Qc4 g2 Ba4 g1B Bcf5 Qe6 Bf6 Nf4 Ra5 Bhe2 Ra6 Rd8 b8N Rd6 Be1 Bf2 Nb7 Bg3 Nd7 Rc6 Qd5 Rc2 Qc4 Nb5 Ra5 Ra6 Bf2 Rd6 Ra8 Ra6 Bhg4 Ra7 Nf3+ Kg2 Be1 Bh4 Bg3 Ng6 Bf4 Kf2 B4g5 Nf4 Bh3 Kg3 Bhg4 Ra2 Bh3 Rb2+
q3Rbn1/1BNQ1Q2/2b1r3/2nN2bQ/kr3q1q/2KRNqQ1/b2BQ1b1/7Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 c5 d4 h5 Kd2 a5 g4 f5 d6 h3 b6 Kc6 d5+ Kd7 b5 c4 e5 f3 b7 a4 e6+ Ke8 e7 Kd7 e8N f4 b6 a3 g5 h4 g6 a2 g7 h2 Nc7 h3 Bg2 f2 Nf3 f1B Nc3 Ra5 Nh4 f3 Qe2 f2 Nf5 Na6 b8Q Rh6 b7 Re6 Qa8 Ra4 b8Q Rb4 Ne3 Nc5 Rb1 a1Q Rb3 Ba6 Kc2 Qh4 Bd2 Qa5 Bf3 Bg2 Re1 h1B Qab7 Ne7 g8Q f1Q Qf7 h2 Qh5 Ng8 Q8a7 Kd8 d7 Qa1 Be4 Qff4 Qba8+ Ke7 Q7b8 Kd6 d8Q+ Nd7 Qdg5 Kc5 Qf5 Bb5 Qab7 Bc6 Qff7 Qa8 d6+ Bd5 Qhg4 Bc6 Nc3d5 c3 Kd3 c2 Kc3 c1B Qgh5 Bb5 Bf3 Bc4 Ra3 Ba2 Rb3 Ne5 d7 Nd3 d8Q Qf2 Q7c8 Q2h4 Qdg5 Kc6 Qg3 Nc5 Ra3 Rd4 Qb1 Rb4 Nf6+ Kb6 Bb7 Bc6 Qcd7 Bhg2 Rb3 Ka5 Nfd5 h1Q Qe4 Ka4 Q4f3 Bh3 Qff1 Qhf3 Qh1 Nf6 Kc2 Bg2 Rd3 Ng8 Kc3 Ree4 Qdh3 Re5 Qhd7 Re6 Nf5 Bh3 Qef1 Re2 Be3 Qf4g4 Bg5 Re8 Re7 Be3 Qe2 Bg2 Re4 Bf2 Bc1 Be3 Bd2 Bg5 Nfe3 Qgf4 Re5 Re6 Re4 Rd6 Re8 Re6
3R2nb/3N1N1r/2q1NNq1/B2b3N/3KR1Qn/1NrQ3B/q2qQ1qk/4r2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 g4 Kf6 d4 Kg5 b4 h5 e4 c5 b6 f5 d6 a5 d5 h3 b7 Kh4 g5 h2 b5 a4 e5 a3 e6 c4 g6 a2 b6 f3 Ke3 Kg3 g7 c3 e7 h4 e8Q f4+ Kd3 f2 d7 h3 d6 c2 Qe4 f3 Qe8 Nc6 b8Q Rh7 b7 Nf6 g8N Qb6 d8N Ne7 Bd2 c1Q Nf7 Be6 Qbc8 Bg7 b8N Nf5 d7 Bh8 d8N Nh4 Be1 Ra6 Nd2 Ra3+ Qb3 Qb2 Rd1 a1Q Qb5 Qaa2 Ne2+ Kg4 Bg2 f1R Ng3 f2 Nh5 Qc1 Rg1 h1Q Qe8 h2 Qe7 Nf5 Bh3+ Kh4 Rg7 Qg1 Rg3 h1R Re3 Qg6 Qe8 Rfg1 Qb5 Qbc6 Re4+ Ng4 Ngf6 Rf1 Nf4 Kg3 N4h5+ Kh2 Qc4 Nh4 Q4a6 Ra5 Qb1 Rg5 Nb3 Nh6 Ba5 Ng8 Qc2 Qf4 Qe2 Re1 Rd2 Rc5 Qc4 Bd5 Qcg4 Be6 Kc3 Qfh6 Rd7 Bd5 Ne6 Qhg5 Kd4 Qgd2+ Qcd3 Rc2 Rd8 Rc3 Qef3 f1Q Nd7 Qfg2 Qe3 Qa3 Qee2 Qaa2
R3b1b1/N1qq2Bn/2Q2Bb1/N2bnr1B/1R1R1RBr/5B2/1q1bq3/Nk4K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 d3 h3 g6 h4 d7 c4 e6 c3 g7 a4 e7 f3 e8B a3 b5 a2 b7 c2 b6 f4 Na3 Kc3 d4 h2 d5 h3 d6 Nc6 b8N Ne5 b7 Nf6 g8B Bh6 Bg2 Nh7 Qd5 Ra5 Be6 Qc7 d8R Bd7 Bd2+ Kb2 Nb5 c1Q Ne2 Q1c6 Rhf1 h1B Na7 h2 Bh5 Be8 Nc1 Q6d7 Nb3 Rb5 Rad1 a1Q Qc6 Ra5 Bc1+ Kb1 Beg4 Qb2+ Rd2 Bg5 Na1 Rd5 Qb6 Rb5 Nbc6 Bh6 b8R Ra5 Ke1 f2+ Ke2 Rc5 Na5 Bg5 Bb7 Bd5 Qc6 h1B Ba8 Bhg2 Rb4 Bge4 Rdb8 Bc2 Rdd4 Bg8 Bb7 Rd5 Ra8 Bcg6+ Kd1 f3 Be3 Bh4 Bh6 Bg5 Bf8 Bd2 Bg7 Qdd8 d7 Qdc8 d8B Q8d7 Re1 f1Q Bdf6 f2 Rf4 Qb5 Ree4 f1B Rec4 Bg2 Ke2 Rc5 Kf2 B2d5 Rce4 Qe2+ Kg1 Rc3 Red4 Rf3 Rfe4 Rf5 Rf4 Qd3 Ba6 Qe4 Bae2 Qd3 Bd1 Qe2 Bf3 Ng5 Bhg4 Rh4 Bh5 Nh7 Bfg4 Qa6 Bdf3 Qe2
1K1Q1qnq/2Q4B/5bR1/1QR1rkBQ/3QN1n1/r1bQ1b2/q7/1rr2qRN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 a5 d4 a4 e4 f3 g4 h3 g5 h4 g6 a3 b6 h2 b5 f2 d6 c4 g7 h3 b7 a2 d5 c3 b6 f4 Ne2 f3 Qd4 c2 Nd2 Qh4 Rg1 h1Q Ng3 h2 Bd3 Nf6 g8R f1R Rg6 Qg2 Nh1 f2 Rb1 a1Q Rb5 Qa2 Ra5 Qf3 Rc5 Na6 b8Q Bg7 b7 Nc7 Qa7 Nce8 b8Q+ Bb7 Qa6 Bc6 Qab5 Ra3 Q8b6 Re1 Q6a5 f1Q Qaa6 Kd8 d7 Ke7 d8Q+ Kf7 d6 Rh5+ R1g5 Q3f2 d7 Bd5 Qc7 Ke7 Bb2 c1B Bc3 Bb2 d8Q+ Kf8 Bc2 Rb1 Qbd3 Kg8 Qab5 Kh7 Ba5 Bc3 Bb6 Nd6 Ba7 Nf5 Rg1 Ne3+ Kd6 Qhh3 e5 Ng8 e6 Re5 e7 Bf6 Ne4 Ng4 Kd7 Qf4 Kc8 Qfh6 Kb8 Qf8 Bb6 Qhh6 e8Q+ Qhg7 Qcc8 Qh8 Bc7 Bc6 Bd6 Ba8 Be7 Rc1 Qcc7 Bb7 Nd2 Bf3 Ne4 Rb1 Rh6+ Kg7 Qh5 Rc1 Rg6+ Kf7 Bb1 Ke6 Qh3 Kf5 Qh6 Bg7 Bg5 Bf6 Qh5 Rb3 Nhf2 h1R Bc2 Rh3 Nh1 Rbb1 Bb3 Ne7 Bg8 Rg3 Bh7 Ng8 Qe8 Rh3 Qed8 Bg2 Qe7 Bb4 Qe2 Ra3 Qed3 Bf3 Qc7 Bc3
2b1kbQ1/Nn1r2rB/Q1r5/8/bq3QbR/1N2qQ1n/1K1B3r/1Q1RNQn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 h5 g4 c4 b4 f3 d6 f2 d5 f4 g5 a4 b6 h3 b5 h2 g6 a3 e5 a2 g7 f3 b7 h4 e6 h3 e7 Rh7 b6 Na6 b8Q Nh6 g8N Nc5 b7 Nf5 Qc7 Nd4 b8Q Ne2+ Kb2 Rg7 Nd2 Nb7 Nb3 Ra6 Bd2 Rc6 Bg2 Qd7 Qf1 Qg4 Rd1 a1R Qa7 Rc1 Qa6 Rc3 Qcb6 Rd3 Qe3 Qh4 Qf4 c3+ Ka2 c2 Kb2 Bf5 d7+ Kf7 d8Q c1Q+ Ka2 Qc5 d6 Qe3 Qda5 Ke8 Kb2 Bg4 Qa2 Bc8 Qb1 Rd5 Qe1 f1B Qeg3 f2 Nf3 Qg4 Ne1 Ng1 Be4 Bb5 Bh7 f1B Qgf3 Bfe2 Qf1 Ba4 Q4f3 Qgf4 d7+ Kf7 d8Q Rd7 Qda5 Ke8 Qaf5 Qb4 Q3f4 Bh5 Qd5 Bg4 Qdf3 Qd3 Nh6 Qde4 Nf5 Qe3 Nd4 Ne2 Rg1 h1R Nb5 Rh2 Rh1 Ng1 Na7 Rg2 Rh2 Re2 Rf2 h2 Rg2 h1N Rh2 Nf2 Rh4 Nfh3 Bf5 Kf7 e8Q+ Kg8 Qd8 Kf7 Qdg5 Rf2 Bh7+ Ke8 Qgd5 Re2 Qg8 Rh2
nq6/3qRbN1/r1b3Bb/1R2N2B/1n1R1R1R/r1KN1bB1/1n2qQ2/1k4Nn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Ke7 g4 Kd6 d4 f5 Kd2 c5 b4 h5 g5 a5 b6 h3 g6 a4 b5 c4 g7 h4 b7 c3+ Kc2 h2 b6 h3 Ba6 f3 Ne2 f2 Nf4 f1B Be2 a3 Nd2 a2 Nf3 Nc6 b8N Ra3 b7 Nge7 g8B Rh6 Nd7 Bg2 Nd3 f4 Ng1 f3 b8R f2 Bh5 f1Q Bgf7 Qe2+ Bd2 Ba6 Qe1 Nc8 Rb3 Re6 Bfg6 Bh6 Rb4 Bc4 Rab1 a1Q e5+ Kc7 R1b3 Qe7 Rb1 Nb6 d6+ Kb7 d5 Ka6 Qf1 Ka5 Qf8 Rf6 e6 Na8 N7e5 Qh7 Rb7 Ka4 d7 Be4 Qc5 Bf3 d8R Ba2 e7 Qf7 d6 Qf8 e8N Bf7 d7 Qa2+ Kc1 Qa1 Ne1 c2 Bg5 Qd4 R1b5 Nb4 Bf4 Kb3 Ng7 Rfa6 Qb6 Ka2 Rc8 Bg4 Rc4 Qb8 d8R Qdd3 Rbd7 Bf3 Re7 Qf5 Rd1 Qd7 Qe3 Bc6 Re4 Ka1 Bg3 Ka2 Rdd4 Ka1 Ngf3 Ka2 Rf1 h1B Ng1 Ka1 Rf5 Bf3 Rh4 Ka2 Rff4 h2 Qf2 h1N Bg4 Qf1 Kd2 c1N B4h5 Ncd3 Ne2 Ka1 Ng1 Nb2 N1d3 Kb1 Qe2 R3a4 Qf2 Qe2+ Kc3 Ra3+
1r1N1NqK/b1R4b/QRR1br1N/1N3q2/5RqB/bB6/qN1k4/1n2nB1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 b7 c2 d6 a4 Ne2 f4 Na3 f3 Qd3 h2 Nf4 h3 Qa6 Ra7 Nb5 Ne7 Kf6 a3 g8B a2 e5 Nbc6 b8N Nd4 e6 Nd5+ Kf7 Qh4 e7 Nc3 e8R Qg4 Re4 Nb1 Nd3+ Kb3 Bd2 c1B Be1 Kc2 b4 Ba3 Nb2 Bg7 Rg1 h1R Rf4 h2 Rg3 Ra8 d8N Rh6 Nd7 Rb8 Nf8 Rg6 d7 Rf6+ Ke8 Kc1 Nf7 Nc2 d8N Be6 Nh6 Bh8 Bf7 Qg8 Rg6 Bg7 Bh3 f1Q Bh4 Qc4 Bf1 f2 Ke7 Kd2 Ke8 Nc3 Rc1 Nb1 Ke7 Qe2 Ke8 Ne1 Rc7 Qg4 Ke7 Bc8 Bb3 a1Q Ke8 Qa2 Ke7 Rfb6 Rgc6 Bd4 Ke8 Be3 Ke7 Be6 Kf6 Qh7 Na7 Qhg8 b5 R6b7 b6 Bec5 Bh3 f1Q Nb5 Ra7 b7 Bb6 Qa4 Ra6 Qc4 Qf2 Bf1 Ba7 Qa4 Rg1 Qc4 h1B Qa4 Be4 Qc4 Ra8 b8R Bh7 Rbb7 Rb8 Rbb6 Rh1 Qa4 Qgg2 Qc4 Q8g4 Qa4 Qd5 Qc4 Qff3 Qa4 Qgf5+ Kg7 Q3g4+ Kh8 Bd7 Rc1 Rg1 Rbb7 Rf6 R1c6 Rh1 Rbb6 Qf7 Qa6 Be6 Nd6 Q7g6 Nb5 Qg8+
2n1b2r/4Rq2/K2b1N1q/3N1nR1/kN1RB1b1/B4qBQ/Nr3N1q/Br1r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kc4 a5 e4 c5 g4 h3 b4 h2 b6 a4 Kb5 a3 g5 h4 e5 c4 b7 f3 g6 h3 g7 f2 e6+ Kc7 e7 c3 e8N+ Kd7 d6 a2 d5 f4 Bd3 f1B Qf3 c2 Ba3 c1R Nc3 Qc7 Nf6+ Kd8 d7 Nh6 g8N Qe5 Ne7 Kc7 d8R Nd7 b8N Rb1 Nbc6 Nf5 Qg2 Rb2 Re1 a1R Na2 f3 Re2 f2 Be4 Qc3 d6+ Kb7 Ned5 Nb6 d7 Rd1 Qf3 Rb8 Ka5 Qd3 b5 Bd6 Ncb4 Qc3 Qg2 Qf3 Rg8 Rbb1 d8B Be6 Re1 Nc8 b6 Bb5 Rg5 f1Q Qg3 Be8 Re2 Ka8 b7+ Ka7 Rd2 Qc4 Rd4 Qcb3 Be7 Qc4 Bb2 Qcb3 Ba1 B6d7 Nb6 Qf7 Nb6d5 Be6 Ne2 Rb2 Re1 h1Q Ng1 h2 Nh3 Qg1 Qg2 h1Q Nf2 Qh6 Qh3 Qh2 Re2 Ra8 b8B+ Kb7+ Na6 Kc6 Bc7 Rab8 N6b4+ Kc5 Ka6 B6d7 Rd3 Kc4 Rd4+ Kb3 Re3+ Ka4 Bf8 Be7 Bg3 Rb7 Bb1 Bd6 Re7 Nh4 Bd3 Bg4 Be4 Nf5 Nc6+ R2b4 Re6 Bb8 Bc5 Bd6 Re7 Rc4 Ba3 Rb2 Ncb4 Rcc1 Be5 Rcb1 Bf4 Na7 Bg3 Nc8
2r1Nnn1/1r3nNr/1BnR1b1B/N3B3/QRb1bqbk/1N4N1/3R1r2/6KB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 b4 Kf6 e4 Kg5 g4 f5 d4 h5 e5 a5 b6 c5 d6 c4 d7 h3 b7 h2 d5 a4 d6 a3 e6 c3 e7 h4 e8N c2 b5 a2 b6 h3 Bg2 Bg7 Qe1 Rh7 Qd1 Qf6 d8N Nc6 b8N Kh4 d7 f3 g5 f4 b7 Qf5 g6 Bf6 Kf1 f2 g7 Qe4 Bd2 c1N Qa4 Nd3 Ne2 Nde5 Ne6 Nf7 d8B Qe3 Rg1 h1R Ng3 h2 Bb6 Qd4 Bd5 Ra7 Kg2 f1R Bc1 Qe5 Nd2 Qd6 Rb1 a1N Rb4 Nb3 Be4 Nc5 Nb3 Nd7 Bd5 Rf3 Rd1 Nf8 Rd2 Rhf1 Be4 h1B+ Kh2 R1f2+ Kg1 Rc3 Bd5 Nce7 Nc6 Be4 b8B f3 Nca5 Qf4 Be5 Rc4 Ba8 Nc6 Rd6 Rb7 Bd2 Nge7 g8R Bd7 Rg5 Ng8 N6g7 Bg4 Rg6 Nce7 Bc1 Rc8 Rd5 Nc6 Rd2 Bd8 Rgd6 Bf6 Rb2 Re2 Rbd2 f2+ Kh2 f1B+ Kg1 Ra7 Bb7 Rf2 Ba8 Bc4 Bb7 Nce7 Bc6 Rb7 Bd5 Bg6 Bh1 Nc6 Rb2 Qf3 Bh6 Be4 Rbd2 Qf4
2nQb2N/rNQBN3/2Np3B/1kb4r/1b3r1R/q4R2/R2Nbn2/b1K2n1N w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 g4 a5 b4 h5 c4 e4 f4 d3 b6 h3 b5 h4 c5 h2 f6 a4 b7 a3 c6 a2 b6 h3 f5 Ra3 g5 Ne7 c7 Ra7 g6 Rh4 g7 Rh5 g8N Na6 b8Q Nb4 b7 Nc2 Ne2 Ne3 Ng3 Rh4 Be2 Rf4 Qc2 Nf1+ Kd1 d2 Bb5 Ng6 Ne7 e3 Qc3 e2+ Kc2 d1N Nd2 e1B Qa8 Raa4 b8N Nf2 Nbc6 Ba6 c8N Qa5 Qe5 Qb4 Qc7 Qa3 Qab8 Ra5 Ba4 Be2 Bb5 Bg7 Qbb6 Ra7 f7+ Kf8 Qa5 Bd4 Nd6 Bc5 Nb7 d6 Qab6 Ne5 Qa5 Nd7 Ba4 Nb6 Bb5 Kg7 f8N Kf7 f6 Nc8 Nfg6 Ke6 f7 Ra8 f8R Ra7 Rg1 h1B Nh8 h2 Rf7 Bhf3 Nh1 Bh5 Rg4 Bg6+ Rf5 Bf7 Rh4 Be8 Nb1 Beb4 Nd2 Re4 Rf3 Rf4 Rb1 a1B Rb2 Rg4 Ra2 Rf4 Nb8 Ke5 Bd7 Kd4 Qd8 Bb5 Qac7 Be2 Nb1 Kc4 Nbc6 Kb5 Bd2 Rf6 Bh6 Rf7 Nd2 Rf4 Ng3 h1R Kb1 Rg1 Nh1 Rg5 Kc2 Rh5 Kb1 Qa5 Kc1 Qa3+
1N3r2/r3nRb1/R6Q/1b2Q3/1k2Br1R/q3N1Bn/2R1K1pq/N1qrR1Rr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 Kd6 b4 f5 e4 g5 b6 a5 e5+ Ke7 h5 c5 b7 f3 b5 a4 h6 f4 h7 c4 b6 g3 e6 Kd6 e7 g4 e8R c3 Bd3 c2 Nh3 g2 Na3 g3 Be4 f2+ Ke2 g1Q Qd2 f1R Nf2 g2 Ng4 Qe7 Ne3 Nc6 b8N Qa7 b7 Qh2 Rg1 Nb4 Bb2 c1R Nac2 a3 Re7 a2 Rf7 Rf3 Rb1 Rd1 Na1 Bh3 Rc1 Qa3 Rc2 Ne7 Qc1 Rg8 h8R Ra5 Rh4 Bg7 Bc3 Ra8 Be1 Ra7 Bg3 Nd3 Re1 Bd7 Rg1 Bc6 Qd2 Kc7 d6+ Kb6 d7 Kb5 d8R Rf8 d5 Nf2 d6 Nh3 d7 Ka4 Qc1 Kb4 Re8 Ba4 d8R Bb5+ Nc4 Rff1 Rd6 Rf3 Ra6 Rff1 Nb3 a1Q Qe3 Q1c1 Na1 Rf3 Qb6 Rfd3 Ne3 Rd4+ Kf3 Rc4 Qh6 Rcd4 Nd7 Rc4 b8Q Rcd4 Qe5 Rc4 Kg4 f3 Nb8 f2 Kf3 f1R+ Ke2 Rf4 Re1 Rf1 Rd8 Rh1 Rg1 Rf1 Rd1 Rf4 Rde1 Rd4+ Nc4 Rd3 Ne3 Rd1+
B2B2q1/1BQ3Bb/1nQ1B1rb/1QR5/N1r2B1N/5b1K/2p2kr1/qbn1R1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kd6 g4 Ke5 Kg2 Kd4 b4 a5 d3 h5 b6 f5 e5 c5 g5 h3+ Kh2 a4 g6 h4 e6 c4 g7 c3 e7 f3 e8B f2 b7 a3 d6 f4 b5 f3 b6 a2 d7 Ra6 Bb2 Ke3 d4 Nh6 g8B Nf7 d5 Bh6 d6 Ne5 Bgf7 Rg8 Bg6 Nd3 Bef7 Nc1 Bb5 f1B Qd5 f2 Be6 Bd3 Be4 f1Q Nf3 Kf2 Qc6 c2 B4d5 Bh7 Bg7 Qf8 d8Q Nd7 b8B Qd1 b7 Nb6 Bf7 Be6 d7 Ra4 Bd6 Rc4 Nc3 Qd4 Rb1 a1B b8Q Qf6 Na4 Bd4 Rg1 Bc5 Bf4 Qa1 Rg5 Be3 Bf6 Rg6 Bg7 Qg8 Qdc7 Bd4 d8B Be3 Kh1 h2 Ba6 Ke2 Qba7 Na2 Kg2 h1B+ Kh2 h3 Rbg1 Nc1 Nh4 Bf3 Qca8 Bd4 Bc8 Rc3 Qa5 Bc5 Be4 Ba2 Bfe6 Bb1 Qb5+ Rc4 Kg3 h2 Kh3 Bf2 Rc5 Be3 Rd1 Bg1 Re1+ Kf2 Qd5 Qe8 Qdd6 Qh8 Ba8 Qg8 Rg5 Bd5 Qdc6 h1R+ Kg4 Rh2 Bcb7 Rg2+ Kh3 Be4 Rc5 Bf3
1BQR4/1NKB2QN/3N3N/Nbr1q3/1nq4q/BR1p4/q1kq1bNn/5rr1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 a5 b4 d5 c4 h5 g4 d3 b6 d4 b5 e6 g5+ Kf7 Ke5 d2 f4 h3 c5 h4 b7 h2 c6 a4 f6 Kg6 f7 a3 c7 d3 b6 h3 Nf3 a2 Qc2 d1Q Nc3 Nf6 Nb5 Rg8 Ne1 Na6 b8N Bd7 c8N Qd2 b7 Bc5 f8Q Qc7+ Ncd6 Nb4 Ng2 Ra5 Ba3 Bf2 Rb1 Qc4 Nc6 a1Q+ Qb2 Rg7 b8B Qaa2 Nb7 Ng4+ Kd6 e5 Qc8 Kf5 g6 e4 Kc7 e3 N5d6+ Ke6 f5+ Kd5 f6 e2 f7 e1Q f8N Rc5 Qf6 Qe5 Rb3 Rf7 Rg1 h1R g7 h2 g8N Rg7 Be2 Rf7 Re1 Rg1 Nh7 h1Q Qg7 Qh4 Nh6 Nh2 Bg4 Be8+ Bd7 Rf5 Kb6 Rf4 Nca5 Kd4 Bg4 Bb5 Bd7 Be3 Ra1 Rff1 Re1 Bf2 Re2 Qef6 Re8 Qe5 Rd8 Ba4 Rb2 Kc3 Rb1 Kc2 Rb3 Bc6 Kc7 Bb5+
r2n2Bb/K1N2qN1/2RB2r1/NqRp4/2Bk1nq1/7b/R1B3Q1/Rq2Bnq1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 h5 c4 d5 g4 a5 b4 d3 f4+ Ke4 f6 h3 g5 a4 g6 d2 f7 h2 f5 h4 b6 h3 f6 a3 b7 a2 b5 Rh4 g7 Bf5 b6 Ra7 Qg4+ Ke3 Nc3 Bd7 Nb5 Nh6 g8B Ra3 Nf3 Nf5 Nc7 Ng7 Ng5 Nh5 Nge6 Qe8 Ng7 Nc6 b8N Ra8 b7 e5+ Kb6 e4 c5 Nf4 Qg2 Nd8 c6 Rg4 Bc4 Kd4 Rf1 d1Q Bd2 h1N Rf2 h2 Be1 Bb4 f8B e3 f7 e2 Bd6 Bc3 f8R Ng3 Rf6 h1Q Rg6 Qh5 Rh6 Nf1 Rg6 Ra3 Rf6 Rb3+ Ka7 Qhf7 Rb1 a1Q+ Ba3 Qc2 Bd2 e1Q Nge6+ Ke5 Ka6 Qg7 Na8 Nd3 c7 Qee7 c8B Rg5 Nac7 Qab2 Ra1 Qe3 Be1 Qcc1 Rh6 Qbb1 Rfa2 Qg1 Bc5 Rb2 Ka7 Qef7 Rg6 Nf4 Nc6+ Kf5 Na5 Ke5 b8R Rb5 Bg3 Qcb2 Be1 Qb4 Rb6 Q4b3 Rd6 Rb8 Rh6 Qgg6 Rb6 Qh5 Rb5 Qf3 Rf6 Ke4 Rh6 Bh8 Ng7 Bh3 Rc6 Rg6 Bf5+ Ke5 Bc2 Qg4 Ka6 Rc8 Bd6+ Kd4 Rbc5 Qb5+ Ka7 Ra8+
4b2k/2Rq2b1/2qRNQ2/3p2K1/2qB1b1N/B2r1NN1/4N1bb/BBn1r1Rn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Kg4 a5 f4 e5 b4 d5 c4 e4 b6 d3 b7 d2 c5 a4 b5 a3 b6 h3 c6 h6 c7 h2 Nf3 e3 Bd3 a2 Qf1 d1Q Rg1 h1Q Ba3 e2 Nc3 e1B Bb1 Qe8 Ne2 h5+ Kg5 h4 g4 Nd7 b8B h3 b7 h2 Ba7 Ne5 b8B Qda4 Bd4 Bd7 c8R Nh6 Rc7 Qc4 f6+ Kg8 f5 Bg3 Bba7 Nd3 f7+ Kh7 f6 Nf5 Be5 Bg7 Bad4 Nc1 f8N+ Kg8 Ne6 Rh3 f7+ Kh8 f8N Qe7+ Bf6 Be8 Qf2 Qd7 Qf1 Bd6 Qf2 Ng3 Ng6+ Kg8 Ngh4 Kh8 Qe3 Qg2 Qf4 h1B Bfe5 Rd8 Qf6 Rc8 Kf4 Qh2 g5 Bg2 g6 Nh1+ Kg5 Ra8 Bd3 Qcc6 Rb1 a1B Rb6 Ra6 Bb1 Qf4+ Kh5 Qd2 Be3 Qc8 Bd3 Qb5 Bab2 Qc2 Nd2 Na2 Kg5 Qcc4 Bc5 Re3 Ndf3 Qcd7 Bec3 Bh2 Rd6 Rb6 Bba3 Qbc6 Bc2 Rb1 Bcb2 Re1 Bb1 Kg8 Bc3 Bh8 g7 Rd3 Bf2 Kh7 g8N Bb2 Nh6 Bg7 N6f5 Nc1 Nfg3 Kh8 Be5 Bd4 Be3 Ba7 Bc3 Bd4 Ba1 Be5 Bed4 Bf4+
1Q4R1/1nB1NbnB/1Nr5/1p1BRqq1/R2K1RN1/3B1b1k/1q1b3q/3q1rR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 e5 g4 c5 a4 b5 f4 h5 g5 h3 a5 h2 a6 h4 g6 b3 d6 h3 a7 b2 f6 Ke6 f5+ Kd7 g7 Rh4 f7 Rc4 f6 Ke6 d7 Kf5 Na3 Ne7 g8B Bh6 f8R Na6 Nf3 Kg4 f7 Nf5 Bh7 Ng7 Rg8 Qg5 d8R Be6 f8R Bf7 Rd5 b1Q+ Qc2 Rc8 a8B Rf4 Nc4 Rc6 Nb6 c4+ Kc3 e4 d4 e3 Re5 e2 d5 Kg3 d6 Nc5 d7 Nb7 d8N e1Q+ Bd2 Qec1 Ra4 Qd1 Bfd3 Kg2 Rhe1 h1B Nh2 Rf1 Kd4 c3 Ng4 h2 Bf4+ Kh3 Qa2 c2 Qb3 Rg6 Nc6 c1Q Ne7 Bf3 Qa3 h1Q Qd6 Qf5 Qb8 Qh2 Bg3 Qcg5 Bf4 Na5 Bd5 Rc6 Bg3 Nb7 Bf4 Rf2 Rg1 Qbb3 Re2 Rf1 Bc7 Qgg6 Re5 Bd2 Rd8 Qh6 Rd6 Qhg5 Rf6 Qd7 Rf4 Qdf5 Nec8 Qa3 Ne7 Qb2#
3b1B1N/1nb3RK/B2RbQ1p/BBQ2q2/B2b1Rr1/q3k3/4n1b1/r2n1B1N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Ke2 Kf7 f4 Ke6 g4 Kd5 c4+ Kc5 b4+ Kb6 c5+ Kc7 c6 Kd6 g6 Kd5 g7 a5 b6 e5 b7 e3 Kf3 d6 c7 d3 b5 Kd4 f5 a4 g5 e2 Kg4 e1B Kh5 d2 g6 e4 f6 h6 f7 d5 b6 e3 Nh3 e2 Nf4 a3 Rg1 a2 Qc2 d1N Bd2 Bb4 f8B Ra7 Nc3 Bf2 Ne4 e1B Ng3 Na6 b8R Ne7 g8B Qd7 g7 Nf5 Kg6 Ba5 b7 Nc5 Nh1 Ng3 Bf7 Rh7 g8B Ne2 Be8 Rf7 Rb1 a1Q Rb6 Qa3 Rd6 Be3 Ra8 Bh4 b8Q Bd8 Qb6 Bb7 c8B Rg7+ Kh5 Bc7 Ng6 Qf5+ Rg5 Bf2 Nh8 Bg1 Bb4 Ke3 Bb5 d4 Bb3 d3 B3a4 Bg2 Bca6 d2 Qb2 Rg8 Qf6 Bd8 Qc6 Bac7 Ba5 Nb7 Qc4 Qfd3 Rf5 Rg4 Rg5 Qf5 Qc5+ Ke4 Rc8 Bd4 Rb8 Ke3 Rc8 Qe5 Kg6 Qf5+ Kg7 Nb2 Rg6 d1B Kh7 Bb3 Ra8 Nd1 Rb8 Qf2 Rg7 Be6 Ra8 Be7 Re8 Bed8 Ree7 Qf3 Ref7 Qf5+ Qg6 Bf6 Bc3 Qd3 Bb3 Bfd8 Rf4 Na5 Bc8 Qa4 Bc2 Qf5 Bb7 Nc4 Bb4 Ra5 B7a6 Qb3 Be1 Ra1 Bc3 Qa2 Bca4 Na5 Be1 Nb7 Ba5 Qe5 Qg5 Qa3 Qf6 Qf5+
1b5k/4R1Rr/2bNp3/1RbB1b2/5QN1/KBBrB1nR/2qrR1qb/6nN w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 Kd2 Kg7 Kc2 a5 Kb3 c5 f4 h5 g4 a4+ Ka3 e3 b4 e2 b6 e1B g5 c4 f5 c3 d6 h3 g6 c2 d5 h2 b5 h4 d7 h3 b7 Nh6 b6 Ng8 d6 Rh4 f6+ Kh8 g7+ Kh7 f7 Ra7 Qd2 Qc7 d8B Rd4 d7 Bh4 Qf4 Bg3 Nd2 Qc6 Bg2 Nf6 g8B+ Kh8 Bd5 Nh5 Nf1 Rd2 Ne2 Qc3+ Bb3 Nc6 b8R Nd4 b7 Nf3 Ba5 Ng1 d8N Bf5 Ne3 Qc6 Rc8 Qg2 b8R Rad7 Ng4 R7d4 Nb7 R4d3 Re8 e6+ Nd6 Be7 Rb5 Bf8 Ra2 Be7 Kb4 a3 Bh7+ Bf8 Rb2 a2 Re7 a1B Ra2 Bd4 Ka3 Ba7 Rb2 Bb8 Bc3+ Bg7 Bg6 Bf2 Ng3 Be5 Nge4 Bfd4 Nef2 Ng3 Ra2 Rd1 Be3 c1Q+ Rb2 R1d2 Bh7 Qc2 Bd5 N1e2 Rg1 Bda7 Nh1 Bad4 R2b3 Bb6 Re1 Ng1 Re2 B6a7 Bg8 Bad4 f8R Bb6 Rg7 B6a7 Re8 Bc5+ Qb4 Bf4 Ree7 Be5 Bf7 Bf4 Be8 Be5 Nhf2 h1B Bec6 h2 Bc4 Qh3 B6d5 Bf3 Nh1 Qg2 Rb1 Bf4 Bb3 Be5 Bdc4 Bc6 Bd5 Bca7 Qf4 Bb6 Nhf2 h1R Rd1 Rh7 Nh1 B6a7 Rf1 Nh5 Rf3 Bc5+ Qb4 Bh2 Rh3 Bb6 Qa4 Ng3 Qf4 Bc5+
1K1N1bq1/r3Bp1b/6Qn/q4BQB/RNr5/QQbn1b1R/4k3/1rQ2bQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 a5 e4+ Kb4 g4 c5 g5 h5 g6 h3 d6 f3 b6 h2 b7 h4 g7 f2 d7 a4 d5 a3 d6 h3 Nc3 c4 Be2 f1B Nd5+ Kc5 b4+ Kb5 Nf3 a2 Bg5 Ra7 Nd4+ Ka6 b5+ Ka5 b6 c3 Ne6 Qe8 d8Q c2 d7 c1B Qe7 Na6 Kd6 Nb8 e5 Bg2 Kc7 Bb2 d8Q Rh4 Bh5 Nh6 g8Q Kb5 Qdd6 Kc4 Nd8 Rd4 e6 Qb5 Qd2 Bf1 Qc1+ Kd3 Qf6 Bg7 e7 Nc6 e8B Bf8 Qfe5 Nb4 Bd7 Qa4 Qdc6 Qa6 Be7 Bc3 Qgg7 Nf5 Qef4 Nh6 Qg1 Qa4 Bdg4 Bf5 Qe5 Bh7 Qef4 Re4 Bf5 Qa5 Qe6 Ra6 b8Q Ra7+ Kc8 Nc6 b7 Ne5 Rb1 a1R Rb4 Rb1 Qbd6 Bg7 b8Q Bf8 Bhg6 Ke2 Ra4 Rd4 Qda3 Rc4+ Qc6 Nd3 Qbb3 Ng8 Nb4 Nh6 Qgd4 Rc5 Kb8 Rc4 Rg1 h1B Rg3 h2 Rh3 Bf3 Bh5 h1Q Qg1 Qg2 Qa6 Qg6 Qfg5 Qg7 Qag6 Qg8
1rk3b1/pNq1q1Q1/5n1B/N1nq3K/QNQRB2N/2Nq4/Rq2r3/1rb2N2 w - - 0 1 illegal: No possible last move
1RB5/1q1N2r1/b2Bqbr1/3Rnn1k/N1NBbr2/3R3K/N4pN1/QqB3q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 Kf7 Kg2 Kg6 e4 c5 d6 a4 g5 f3+ Kh3 c4 d5 f2 d7 f4 b6 c3 e5 c2 e6 a3 b5 a2 b7 f3 d6 Ra6 b6 Rh6 e7 Ra3 e8N Bg7 Ne2 Rd3 Nf4+ Kh7 Ng2 Kg6 Nc3 Qf6 Na4 Nc6 b8B Ne5 b7 Ne7 Ba7 Qf7 b8B Nf5 d8R Ba6 d7 Qe6 Rb1 a1Q Nd6 Bf6 Bd4 Rd2 Rb4 Qb1 Nc4 Rd3 Be2 f1R Bd6 f2+ Bf3 Rg1 Rbb8 Re3 Qe1 Re4 Bg4 Rf4 Qc3 Rh7 Qa1 Rg7 Rh2 Kh7 g6+ Kh6 Rb5 Kg5 Rdb8 Kh6 d8N Kg5 Bcb2 c1Q Rd5 Qf1 Bc1 Qb7 Bca3 Qfb1 Bc1 Kh6 Rh1 Kg5 Nc6 Kh6 Kh2 h3 Nb4 h4 Na2 Kg5 Ne1 Rg3 Ng2 Kh6 Rd1 Kg5 Kh1 h2 Bh3 Kh5 Rd3 Rd7 g7 Rg6 g8N Rdg7 Nge3 Kg5 Kg2 h1B+ Kh2 Be4 Bg4 h3 Ng2 Nh4 Kg3 h2 Bf5 Kh5+ Kh3 Qe8 Be6 Nf5 Bc8 Qe6 Ne7 Rgg4 Ng6 Rg5 Nf8 R5g6 Nd7 Rfg4 Bf4 h1Q+ Bh2 Qhc1 Bf4 Qg1 Bc1 Rf4
2n1KN1n/2q1rQ1Q/N1nb1N1b/5b2/N2kn2N/3r1B2/3qp1R1/1NBRqR2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 g4 a5 f4 a4 d6 h3 d7 e3 Ke6 e2 Kf7 e1N b4+ Kd4 g5 c5 b6 e5 b5 h4 b7 c4 b6 c3 f5 h2 g6 e4 f6 c2 g7 a3 Qf3 e3 Ra2 h3 Be2 Ne7 g8Q Ra7 Qh7 Nbc6 b8N Qc7 d8N Bf5 b7 Nd3 Ke8 Nde5 f7 N5g6 Nd7 Bh6+ f8N Nc8 b8N Rb7 Rb2 a2 Nf6 a1B Na6 Rb3 Ra2 Rd3 Nb7 Bc3 Qf2 Bb4 Bf3 Bd6 Nbc5 Rg8 Na4 Rg7 Bd1 Nh8 Nf3+ Kc4 Re1 h1N Nh4 h2 Bf3 Rd7 Rf1 Ng3 Rb2 h1Q Ra2 Rc3 d4 Rd3 d5 Kd4 Rb2 Ne4 Ra2 Bc5 d6 Qg2 Qe1 Qd2 Qf2 Rf7 d7 Bd6 d8R Rd7 Qg2 Qe1 Qgg6 Qd2 Qgf7 Qe1 Ba3 c1Q Rg2 Qcd2 Bc1 Nb6 Rb8 Nc8 Rb2 e2 Rc2 Qg5 Rd2 Qf4 Rd1 Qe3 Nac3 Q3d2 Na4 Re7+
Kb1R3B/8/1R1Bqbb1/1B1n1B2/2BQ1nnk/rQr1qr2/1pNN4/2Q2r1B w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 b5 Ke4 h5 a4 c5 g4 f3 d4 f2 d6+ Ke6 d7 c4 g6 Kf6 Kd5 c3 e4 c2 a5 h4 a6 b3 g7 h3 a7 b2 Nd2 Kg5 e5 b1Q e6 f5 e7 f4 e8B f3 Bd3 f1R Bb2 c1B Ne2 h2 Bf5 f2 Ra6 b4 Rb6 Na6 Kc6 b3 d5 Qe4 Nd4 Be7 Nc2 Nf6 g8Q+ Kh4 g5 Nc5 g6 Nd3 g7 Qe3 d6 Nf4 Be5 b2 Qb3 Ba6 g8B Bd3 Bc4 N6d5 Kb7 Bf6 Bc3 Rc8 a8B Qde7 Be5 Qe6 d8B Rg8 d7 Rg3 Bdc7 Be4 Rg1 h1N Bcd6 Rc6 d8Q Rc5 Bcb5 Rc3 Bf7 Rf3 Rg5 Rg1 Rg6 f1R Rg8 Rgg3 Qc8 Nf2 Rd8 Ng4 Bd4 Bg5 Bh8 Bf6 Qcc4 Bd3 Qd4 Rh3 Ne4 Bd2 Qc1 Be1 Nd2 Bf2 Bc4 Bg1 Be8 Be4 Beb5 Rhg3 Bh7 Bg6 Kb8 Rh3 Bac6 Rhg3 Ka8 R3f2 Kb7 Q3e4 Ba4 Nc7 Rb5 Rcd3 Qa2 Bf7 Qc5 Ra3 Bf5 Rgc3 Qb3 Bg6 Rb4 Qd4 Bh1 Ncd5 Ka8 Rff3 Qa7 Qde4 Rb7 Bb6 Bab5 Qe3 Rbb8 Ba5 Qd4 Bb6+ Qa4 Ba7 Rb6 Kg5 Qb4 Kh4 Qb3 Bb8+
1k1BN3/1N5N/2K1qNnR/1NQ3q1/N1B3bb/rrrB1Q2/1pR4n/nr3b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 Kc7 d4 b5 g4 h5 a4 c4 g5 b3 g6 b2 g7 c3 f6 b4 f7 c2 f5 h3 f6 h4 d6+ Kb7 Kd5 e4 d7 h2 a5 e3 a6+ Kc7 a7 e2 Ra2 e1R Nf3 h3 Bc4 b3 Bg5 c1R Nc3 b1B Rc2 b2 Na4 Be7 f8Q Na6 f7 Nc5 Qe2 Rb8 a8B Rb3 Bf6 Kb8 Kc6 Qa5 d8N Bg4 d5 Qd2 d6 Qg5 d7 Rh6 Rd2 Bd3 Nd4 Rcc3 Qf3 Rb1 Rc2 Bf1 N8e6+ Bd8 Nb5 Ne7+ Kd6 Rh7 g8N Ng6 Ng7 Ra3 Ne8 Nb3 Bad5 Na1 Kc6 Be7 d8N Rh5 Rg1 h1N Nb7 h2 Be4 Ng3 Rh1 Rh3 Bd3 Bd8 Qc5 Rcb3 Rg1 h1Q f8N Qg2 Rh1 Qe2 Nh7 Qe6+ N7d6 Ne2 Be7 Ng1 Ngf6 Rg3 Rh6 Rc3 Qe2 Nf3 Qd1 Nh2 Qf3 Bb6 Bd8 Rh3 Qcd5 Bf2 Qc5 Bh4 Qf4 Re3 Qf3 Qef5 Nb7 Rcb3 Be4 Rec3 Bed3 Qe6+
b2BbBkb/5nN1/q1RR3q/q4K1N/Bn2BB2/3qr2Q/Rp6/2rNR2r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 b5 f4 c5 a4 c4 d4 h3 a5 h2 g5 h4 g6+ Kg7 f6+ Kh6 a6 c3 d6 c2 a7 h3 d5 b3 f7 Kg7 f5 b2 d7 b4 d6 b3 Ne2 Qb6 d8B Qb5 d7 Nc6 Nbc3 b1Q Bf4 c1R+ Qd3 b2 Ng3 Qa6 Nd1 Nb4 Ra2 Nh6 Rg1 Rb8 a8B h1Q+ Bg2 h2 Re1 Bd6 f8B+ Kg8 f6 Nf7 Kf5 e4 g7 e3 Bac6 e2 Bge4 Be5 Ba4 Rb5 Qe3 Qd3 Nh5 Bb7 Qh3 Ba8 Bc7 Rb6 d8R Re6 Rd6 Bc6 Bd8 Be8 Rf1 e1Q Rg1 Qf2 Re1 Qfb6 Rc6 Qba5 Rd6 Kh7 g8R Re7 Rg2 Re6 Rc2 Kg8 Rcc6 Bc3+ Kg6 Re7 Bf5 Re3 Be4 Be5 Kf5 Qg2 Rh1 Qg7 Re1 h1B Bde7 Qh6 Bd8 Ng5 f7+ Kh7 Bg7 Rg8 Rc5 Qc3 Bec2 Ba8 Be4 Qcd3 Rcc6 Bd4+ Bge5 Rg7 f8N+ Kg8 Ne6 Nf7 Rc4 Nd5 Rcc6 Rg1 Bg7 Rh1 Bf8 Bh8 Neg7 Nb4+
2rr1QN1/1BR4n/2b1K1q1/1q1n4/2R1n1rk/1NN1NR1p/N1n2bQ1/N3B2q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 b4 c5 g4 f5 e4 h5 d4 a4 d6 h3 b6 h2 d5 h4 b5 c4 b7 c3 d7 c2 b6 a3 d6 h3 Ne2 a2 Na3 Nh6 Bd2 c1N Qc2 Ra5+ Ke6 Bg7 e5 Nb3 Bg2 Bf6 Nc3 Nf7 Be1 f3 Rc1 a1R Rf1 Na6 b8Q h1Q b7 Kf4 g5 Kg4 g6 f2 g7 f4 g8N f3 Qe4+ Kg3 Nc2 R1a4 Na1 Nb4 Qa8 Rc5 b8N Nd5 Na6 Na5 Nb4 Bh4 Nba2 Qb6 Rc2 Ba6 d8N Bb5 Nb7 Bc6 d7 Nb3 d8R Nd2 Rc8 Rd4 Qe2 Rg4 Rc7 Ne4 Na5 Qb5 Qf8 Nfg5+ Kf5 Rc4 e6 Nh7 e7 Rd4 e8N Rd1 Qh6 Qg1 Nef6 Rd3 Ne7 Rc8 Ke6 Nf4+ Kf7 Rg6 Ra7 Bb7 Ned5 Nc5 Ne3 Rdd8 Ncd1 Qh1 Nc6 Qa6 Ned5 Rg4 Qf8 Qd3 Ke7 Qg6 Nd4 Ba8 Ndb3 Bb7 N5e3 Bd5 Bb4 Bb7 Rg1 f1Q Ba5 Be4 Rc7 Bd5 Qd2 Qb5 Rc4 Bb7 Rf1 f2 Nec2 Be4 Qd5 Bf3 Be1 Be4 Qd2 Ba8 Bc6 Ne4 Ndc3 Nd5+ Ke6 Qb8 Bb5 Bc6 Ba6 Qb5 Bb7 Bg5 Rg1+ Kh4 Rg3 f1N Qg2 Be3 Rf3+ Bf2 Qd6 Qg7 Ng8 Nfe3 Qf8 Qg5 Ncd4 Nc2 Nf5+ Kh5 Ne3 Kh4 Qb4 Qh5 Qf8 Qg6+
2B2QNq/3RR2r/1nN1QNn1/4bR2/2qN3K/7p/1Bn2n1r/bNNb2qk w - - 0 1 illegal: No possible last move
k1KNn1Rn/r5QR/1n4BN/r1qq1Rbb/1rB3B1/p7/2N2NN1/1q1rB3 w - - 0 1 illegal: No possible last move
RKb2RNN/2n3Nr/7b/rn1N1BB1/5p2/qq4q1/1n1n1N1R/kNb2QQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 b7 c2 d6 Kb3 Bd3 f1N Rh2 a4 Bg5 Nh6 g8N Nd2 Qf1 Qc7 d8N c1Q Nc6 a3 Nb4 a2 Nd5 Na6 b8R+ Qb6 d7 f4 d8N Nf5 Nf7 Rh7 Nh8 Bh6 Ngf6 Qb7 Ng8 Nd4 Kd6 Nc7 e5 Ra5 e6 Qc3 Bf5 Qg3 e7 Ndb5+ Kc5 Qa7+ Kc6 Qae3 e8N Qe7 Rf2 h2 Nh3 h1Q Rh2 Qhf3 Nf2 h3 Ng7 Qa3 Ra8 Qd3 Qg1 Kc2 b4 Kb2 Qf1 Qdb3 Kb6 Bd7 Kb7 Be6 Kb8 Bc8 Rg2 h2 Qg1 Nc3 b5 h1N b6 N3b5 b7 Ra4 Ng4 Nf2 Rh2 Nd3 Nf2 Ra5 Nbc3 Qab4 Rd1 a1B Nb1 Q3a3 Re1 Qc4 Re8 Qcb3 Rf8 Ka2 Qf1 Bb2 Nde7 Qc4 Ne6 Bd7 Ng7 Be8 Kc8 Bc6 b8Q Qc2 Nd1 Ka1 Nd5 Qcb3 Qb6 Bd7+ Kb8 Bc1 Qbg1 Nb2 Nf2 Bc8
kn5q/bN4qr/B1N1brn1/R2b2rp/3n4/1B1QR3/3KN1BR/B1bR2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 b4 f5 g4 a5 e5 c5 e6+ Kc7 g5 Kb7 g6 f3 e7 f2+ Kd2 c4 e8B a4 b6 a3 b5 h3 d6 f4 g7 h2 d7 a2 d5 f3 d6 Qe7 d8R Qf6 d7 Ra4 Nc3 Qe7 Nd5 Rb4 Bg2 f1R Bb2 f2 Ne2 Qf6 Rg1 Ne7 g8B h1B Qb3 Qd4+ Qd3 Ng6 Bc3 Ka8 b7+ Ka7 Rd1 a1N Ne7 Nc2 Ba1 Qg7 Bgf7 Nd4 b6+ Ka6 Be6 Rh7 Nc6 Bc5 B8f7 Ra4 Re8 Ra5 d8N Qh8 Beh3 Rb5 Re3 c3+ Kc1 c2 Kd2 Qg7 Bb3 Be6 Bg4 Nd7 b8R c1B+ Kc3 Qh8 b7 Ba7 Ra8 Nb8 B4f3 Qg7 Bfd5 Kb6 Bdc4 Rg5 Ba6 Qh8 Bh3 Bhd5 Bg2 Nd7 b8R+ Kc7 Rb6 Nb8 Rb4 Nf5+ Ned4 Rg3 Ra4 Kb6 Bb5 Rg5 Bh3 Kc7 Rc4 Bb6 Ra5 Ba7 Rca4 Kb6 Ra2 Kc7 Nf7 Kb7 Ba6+ Ka8 Nd6 Re1 Nb7 Re2 Bg2 f1Q Rc2 Qf2 Bf1 Qe1+ Rcd2 Rf2 Kc2 Rf3 Rh2 Rf2+ Ne2 Qec3+ Kb1 Rf3 Bg2 Qcg7 Kc2 Nd4+ Kc3 Bb2+ Kd2 Rf6 Ra4 Ba3 Ra5 Bc1+
3RbNB1/3qNB2/1r1R3B/2NBNKbp/R2b2nb/q1nr4/2k3nB/Q2r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 f5+ Ke5 a5 g6 a4 d6 a3 d7 f3 b6 f2 d5 f4 g7 h3 b5 f3 d6 a2 b7 h2 b6 Nf6 g8B+ Nd5 Bd2 Be7 Bh6 Bh4 Nd2+ Kc3 e4 c4 Nb3 Nc6+ Kf5 Ne5 b8B Ng4 b7 Ra6 e5 Rb6 Bg2 f1Q e6 f2 e7 Qd3+ Be4 f1N e8B Kb2 Bef7 c3 Nc5 c2 Nf3 c1B Ne5 Qa3 Bc7 Nc3 b8N Ba6 Nbc6 Bb5 Ne7 Bcg5 Bed5 Rh7 Rg1 h1R Qa4 Qe8 d8N Qd7+ Nde6 Rh8 Qa7 Kc2 Rg3 Rh3 Rd3 Re3 Rd4 Rd3 Rd1 a1B Ra4 Qe8 d7 Nfe3+ Kg6 Rh7 d8R Ng2 Kf5 Qc6 Qa8 Qb7 Nf8 Be8 Ned7 Rg7 Bh2 Rgg6 Ne5 Rgd6 Qa5 Qd7+ Nce6 Nb5 Qe1 Bb2 Bc6 Rb3 Rdd4 Re3 Qa1 Re1 Rd3 Rd1 Be4 Rdc6 Bf3 Rc3 Rd6 Rcd3 Ba8 Bd4 Bd5 Qa7 Nc5 Nc3 Bg1 Qc7 Bh2 Qd7+
2NB4/n5qb/N2N4/3N1npn/r3Q3/rBb1Kn2/qb1R2N1/R1NQB1rk w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 b7 a4 b5 c4 h6 c3 h7 f4 b6 c2 Rh2 a3 Ne2 a2 Bd2 c1B Be1 Bg7 Nbc3 Nc6 b8Q+ Qc7 b7 Ra4 Qa8 Nh6 b8N Nf5 Na6 Bb2 Nc1 Na7 Bc4 Qf7 Bb3 g3+ Kg1 g2 Kf2 Re8 h8N g1R Ng6 Bh8 Rg2 Qg7 Nh4 Bd7 Qb7 Ra8 Rh2 Be8 Ng2 Bg6 Qb4+ Kd7 d6 Kc6 d7 Bh7 d8B Ra3 Rb1 a1Q e5 Qa2 e6 Ra4 Qc4+ Kd6 d5 Ke5 d6 Ra3 Qf1 Ra4 Nd5 Ke4 e7 Ra3 e8N Ra4 Bd2 Ra3 Ke1 f2+ Ke2 Bc3 Qfe1 f1N Qh4 N1g3+ Kf2 Bb2 d7 Nh5 Be1 Ra4 Ra1 Ra3 Qg3 Ra4 Ke2 f3+ Kd2 f2 Nd6+ Kd4 Qgf3 f1N+ Ke2+ Nd2 Nc8 Ke5 Qd3 Nf3 Qc4 Nh6 Qc6 Kf5 Ke3 Kg4 Bc7 Ra3 d8N Bc3 Nb7 Nf5+ Kd3 Ra4 Bd8 Ra3 Nbd6 Bb2 Bd2 Kg3 Qe8 Ra4 Qe4 Kf2 Be1+ Kf1 Ngf4 Bc3 Rd2 Ra3 Nfe2 Kg2 Nef4+ Kh1 Ng2 Rb8 Ngf4 Rb4 Ng2 Rba4 Ke2 Bb2 Kf2 Qh6 Ke2 Bhc3 Kd3 Qg7 Ke2 N5d4+ Ke3 Nf5+
2N1rbn1/BB2Q1Bq/R1Nq2R1/3b1p1r/B4Q2/1nBb1B2/1K6/n2Rnkr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 e4 a5 e5+ Kc7 g5 Kb6 d6 a4 d7 c4 e6 f3 d5 a3 e7 f2 e8B h3 d6 h2 g6 h4 g7 h3 Qe2 a2 Kb2 Ra6 Nd2 Rh4 Ngf3 Bb7 Bg2 f1N Ne4 Ne3 Bd2 Ra7 Bc3 Qc8 d8B+ Qc7 d7 Na6 Bdf6 Bd5 d8R Nc2 Rhd1 h1B Nd6 h2 Ne5 Rb7 Bf3 Ne1 Nc6 Rh5 Qe7 Nc5 Bfe5 Rb8 Nc8+ Kb7 b6 Ka6 b7 Kb5 Bf6 Nb3 Rd6 Be4 Bfd4 Bd3 Rg6 Qd6 Bf6 Ra8 b8B Bg2 Ba7 h1Q Bg4 Bd5 Bf3 Rg5 Bfd4 Qh7 Bd7 Rh5 Bf6 Ka4 b5 Rb8 b6 Kb5 b7 Ra8 Nb6 Re8 b8Q Kc5 Bc8 Kb5 Bb7 Kc5 Bb4+ Kb5 Nc8 c3+ Ka3 c2 Kb2 Kc4 Bbc3 c1R Bfd4 Qd8 Qf4 Qd6 Rd2 Nf6 g8B Rd1 Be6 Ng8 Bd7 Rc1 Rb1 a1N Bg7+ B3e4 Rdg2 Kd3 Re6 Rd1 Rgg6 Rc1 Nd4 Rd1 Ba4 Rc1 Nc6 Rd1 Bg2 Ke2 Bf3+ Kf1 Ref6 Rd4 Rd1 Bd3 Qfe3 Rg4 Qf4 Qc5 Nd8 Rgg5 Ra6 Qd6 Nc6 Rg1
K3QN1n/rN1RB1R1/1qr4p/2R1B3/1N2B1Nr/r1bb3q/3R3b/2kqn2R w - - 0 1 illegal: No possible last move, all moves rejected
r1Rqrk2/1Krb1N2/n2p1RB1/q2nB1Qq/R1nR3Q/B3n3/7R/1N1Rb3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 e5 Kc4 h5 Kd5 h3 f4 e4 g4 a4 b4 h2 c4 a3 b6 a2 b7 e3 f6 h4 g5 d3 g6 h3 c5 e2 f7+ Ke7 g7 e1Q f5 d2 c6 Rh6 b5 Rf6 c7 Qe8 b6 Na6 b8R Qd8 b7 Qe2 Qe1 d1N Nf3 Nb2 Ng5 Qe3 Bd3 Qe8 Qh4 Nc4 Rd1 Qd8 Ba3+ d6 Kc6 h1R Bc2 Be6 c8R h2 Bd3 Qe5 Bc2 Nh6 g8Q Bg7 f8R Re1 Nf7 h1Q+ Be4 Bh8 Qgg5 Ng4 Rd4 Qh3 Rd1 Nge3 Rd4 Ra7 Ra8 Qea5 b8R Nd5 Rb2 Qg4 Rh2 Qh5 Nd2 Re3 Rd1 a1N Nb1 Nc2 Bd3 Re2 Be4 N2e3 Bd3 Nac7 Be4 Ra6+ Kb7 Bd7 Ra7 Rc6 Bc2 Qd2 Ra4 Na6 Rg8 Rc5 Rg6 Kf8 Rh6 Re6 f6 Re8 Bg6 Rf2 Ne5 Q2a5 f7 Kg7 f8B+ Kg8 Nd3 Ra2 Bg7 Rc6 Bf6 Kf8 Ne5 Bg7 Nf7 Ra1 R4d2 Ra2 Ba1 Bc3 Rd3 Be1 Be5 Rc2 Rd4 Rb6+ Ka8 Rb8+ Ka7 Ra8+ Kb7 Qc3 Bf5 Qca5 Rf6 Ncb6 Bh7 Rc5 Be4 Nbc4 Bg6 Rc7+
QrBr1Q1B/R4npN/BR1B1q1k/bq5r/6b1/1n3q1b/b1N1N1B1/1B5K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 d5 Kg2 a5 c4 f5 e4 Kf7 h4 Kg6 b4 d3 h5+ Kh7 h6 f4 e6 d2 b6 a4 b5 g3 b7 a3 e5 a2 b6 d4 c5 d3 c6 Qc7 e7 Kg6 e8B+ Kg5 h7 Nh6 e6 Bc5 e7 Be6 Na3 Na6 b8N Bb4 b7 Qe5 c7 Nc5 c8B Nf7 Bc6 Ba5 e8B Nb3 Nd7 Rb8 Nf6 Qb5 Qf3 d1R Rh6 d2 Kh1 Bd5 Qe4 f3 Ne2 f2 Nc2 Bc4 Ba3 g2+ Kh2 Be6 Bd6 Bc4 Qe7 Bd5 Qf8 g1Q+ Kh3 Bc4 Bcg2 Qh1+ Kg3 Bd5 Bc6 Bc4 Bce4 Qh5 Bg6 Qf3+ Kh2 Bd5 Kh1 Be6 Rb1 a1Q Rh4 Qb2 Ra4 Kh6 Bf5 Bc3 Ra7 Ba5 Ne4 Qf6 Ng5 Na1 Be4 Ba2 Rb2 Nb3 Bd3 Ra8 b8Q Rb1 Be4 d1B Qb7 Rb8 Qa8 Rg8 h8B Rc1 Na1 Rc5 Bb1 Rd5 Nc2 Rf5 Qe7 Rd8 Nh7 Re5 Qf8 Rd5 Ng3 Rg5 Bd3 f1B Ne2 Rh5+ Kg1 Qbc6 Bda6 Qa4 Bh1 Bh3 Bg2 Qb5 Kh1 Qfd3 Ned4 Bdg4 Ne2 Nc5 Rb4 Qdf3 Rb3 Qe8 Rbb7 Nb3 Rb6 Qb5
R1B5/2kpqnBq/b4NQ1/K1rB3N/1B2n3/1bb1b1r1/1BQR4/nq2B1R1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 f4 e5 g4 a5 b4 d3 Kc3 e4 b6 h3 f6 d2 b5 h2 b7 e3 f7+ Ke7 b6 Kd6 f5 a4 Kb4 h4 c4 h3 g5 a3 g6 e2 g7 e1B c5+ Kc6 f6 a2 Bc4 Be7 f8B Ra3 f7 Ra7 Ne2 Qc7 Nf4 B7h4 Qc2 d1B+ Nd2 Rh6 Nh5 Bhf2 Rg1 h1Q Bb2 Na6+ Ka5 h2 b8B Qd8 Bg3 Qe7 b7 Be3 b8R Rg6 Ra8 Nh6 g8Q Rc7 Bfg7 Qhe4 f8B h1Q Rc1 a1N Ba2 Kb7 Bd5+ Rcc6 Bf2 Kc7 Qe6 Rg5 Qg6 Rg3 Rg2 Nf7 Rh2 Rf6 c6 Nc5 Rg2 Ba6 Rg1 Kd6 c7 Qh2 c8B Kc7 Rg2 Rc6 Rg1 Qd3 Rg2 Ne4 Rg1 Nc3 Ne4 Rc4 Nef6 Ne4+ Bc3 B1d2 Be1 Qh4 Bb4 Bc3 Rg2 Rc6 Rd2 Qh1 Bh8 Qdf1 Bfg7 Qhh3 Qb1 Bb3 Qc2 Qff5 Bf2 Qh1 Rg1 Qh4 Be1 Qf1 Nf4 Qh7 N4h5 Qd3 Re2 Qd1 Rd2 Qb1 Ng8 Neg5 Bd4 Ne4 Bhg7 Bb2 Ngf6 Rc4 Ba7 Be5 Bd4 Rc6 Bb2 Bc3 Qd1 Rc4 Qc2 Rc5+
6q1/3N2k1/2rn1r1R/KRN5/nB1N1p2/N1B2r1Q/2bB1B2/Rb1Bbrrr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 h5 g4 a4 d6 a3 d7 a2 b6 f3 b7 f4 g5 f2 g6+ Kg7 d5 h3 e5 c4 b5 h2 e6 h4 b6 h3 e7 Qe8 Kb4 c3 d8N c2 d6 Qc6 e8N+ Kh6 g7 Qg2 Ne6 Qg6 Qg4 Qf7 Ne2 Ra3 Nf6 Rf3 Ka5 Na6 b8B Ne7 g8R Nf5 b7 Nc5 d7 Nd6 d8B Na4 Rg5 Qg8 Nc5 Bf5 Bd2 c1R Nfd7 Bc2 Be7 Kh7 Bg2 f1R Ba7 Bg7 b8B Bc3+ Ka6 Kh6 Nd4 Rh7 Re5 Rf7 Na3 Rf6 Bc7 Rg1 Ba5 Rcf1 Qh4+ Kg7 Bb4 Rc1 Ka5 Rcf1 Rh5 Bb1 Rh6 Bc2 Rb1 a1R Rb3 Rfc1 Bf1 Rab1 Be2 Rcf1 Bd1 Rc1 Be1 Bd2 Bc3 Bb1 Bf2 Be1 Bd2 Rcc3 Rb5 Bc2 Ncb3 Rc6 Nbc5 Rgg3 Rg1 h1B Qh5 h2 Qh3 Bg2 Bc3 h1R Be3 Rf8 Bed2 Rf6 Be2 Bd3 Na6 Ne4 Bd8 R1f2 Qh4 Bh3 Be7 Be6 Beb4 Bf5 Ndc2 Nd6 Qh3 Bfe4 Rf1 Rgg1 Bae3 Bg6 Nd4 Bdf5 Nac5 Bh7 Bc1 Bd2 Re1 Rff1 Bf2 Bd3 Rd1 Be1 B1d2 Bdg6 Ra1 Bb1 Bd1 Bhc2
3KbBnR/2Q2n1B/Q2n3r/b2kb1p1/r1nBq3/2BQRN2/1Bn3N1/1n1B4 w - - 0 1 illegal: No possible last move
1kqN1N2/Rb1nQ3/nr3Qb1/2n2N1B/Nb1bR2K/4nR1n/3Bp3/1N1Nr3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 b4 c5 f4 Kc7 Kf2 h5 g5 e5 d6+ Kb7 d7 c4 b6 a4 d5 c3 g6 c2 b5 h3 Kg3 e3 g7 h2 f5 e4 d6 a3 f6 a2 f7 e2 Qd4 e1N Be2 e3 Qf6 Ra6 Bd2 c1N Kh4 Nc2 Nh3 Nb3 Nf2 Nc5 Rf1 h1B Nd1 Be4 Rf3 Bg6 Qe7 Qc7 d8Q Nf6 g8N Nfd7 Nh6 Ka8 Qf6 Bb7 Nf5 Qc8 Qc7 Be7 f8N Rh6 Qd8 Ra5 Qe8 Nba6 Qf7 Kb8 Qg7 Ne5 d7 Ra3 d8N Ned7 Qf7 Bd6 Q7e7 Rc3 Bc4 e2 Bf7 Ne3 Be8 Rc1 Bf7 Bc6 b7 Be4 Ndc3 Re1 Nd1 Nd3 Be8 Bb4 Bf7 N3c5 Be8 Ka7 b8N Bb7 b6+ Ka8 Kg5 h4 Bf7 Ne5 Nbd7 h3 Be8 h2 Bf7 Ncd3 Nc5 h1N Na4 Ndc5 Be8 Kb8 Bf7 Bd5 b7 Ned7 Be8 Nf2 Bf7 Bh7 Bh5 Bg6 Kh4 Bc6 Ndc3 Nh3 Nd1 Ka7 b8R Bd5 Rb6 Bb7 Re6 Kb8 Na3 Bf7 Re4 Bg6 Rc1 a1B Nb1 Bd4 Rc3 Ne6 Rc6 Nec5 Rc7 Bc6 Ra7 Bb7 Qfg7 Bh7 Qgg5 Rb6 Qgf6 Bg6
nnR2bB1/kN1n2B1/B2b1q1r/1Bb2Rb1/QK6/3b2p1/NQ3BN1/3Br1n1 w - - 0 1 illegal: No possible last move, all moves rejected
1q3N2/kb1bQR2/1r1K2NR/3B2r1/rN1b4/pRRr3b/3R1nbB/RQ1n4 w - - 0 1 illegal: No possible last move
b1r1k2b/N1B3n1/2rRrn2/NR1B2N1/BB2bR1n/1K2B1np/Q6r/2N3q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 h5 g4 c4 b4 f3 d6 f2 d5 f4 g5 a4 d7+ Kf7 g6+ Ke7 d6+ Kf6 e5+ Kg7 e6 a3 e7 a2 e8N+ Kh6 b6 h3 g7 Kg6 b5 Kf7 b7 f3 b6 h4 Qc2 h2 Be3 Nc6 b8B Nf6 b7 Ne7 Na3 Nf5 Rd1 a1R Ne2 Qb6 Nb5 R1a6 d8B h3 d7 Nh4 Rg1 h1B Nc1 Bc5 Bbc7 Bd4+ Kb4 c3 b8R Bb7 Be7 Be4 Kb3 Bg2 Qb2 c2 Bb4 Rg8 Bd3 f1N Qa2 f2 Na7 Ng3 Rgf1 Ngf5 Bb5 Qc5 Ba4 Re6 Rb5 Rc8 d8N+ Ke7 Rg1 f1N Nd6 N1g3 N6b7 Ke8 Na5 Rf8 g8B Ng7 Rgf1 Rf7 Ne2 c1R Rf4 Ba8 Rd2 Bge4 Rd1 Rc2 Nc1 Rh2 Rd2 Rc6 Ne6 Re7 Ng5 Ree6 Rd3 Bc3 Rd6 Qb6 Bd2 Qg1 Be3 Re5 Bc4 Re6 Bd5 N7f5 Nh7 Ng8 Bd8 Bh8 Bc7 Nf6 Ng5 Ng7
3NBqnk/3n2N1/2RrQ3/1nBNr2N/N3bRp1/RbQ4N/br1r4/2b4K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 Kg2 c5 e4 f5 h4 Kf7 b4 g5 d4 Kg7 e5 c4 h5 g3 b6 c3 d6 g4 h6+ Kh7 e6 a4 d5 c2 d7 a3 d6 a2 e7 Nf6 e8N Ra5 b5 Bb7+ Qd5 Ng8 Nc7 Be7 Be3 c1R Bc5 Rd1 Nh3 Bg5 Nc3 Qf8 d8N Nd7 Na4 f3+ Kg1 g2 Nde6 f4 Ng7 Rb1 Qe6 Be4 b7 Rb2 b8R f2+ Kh2 g1N b6 f3 b7 Bc1 Rc8 Ne2 b8N Nc3 Nd5 Nb5 Rc6 Rd2 Rg1 Ra6 Kh1 Ra5 Bd3 f1B Rg3 f2+ Rf3 Be2 Bc2 f1B Bb3 Bg6 Rf4 Bc4 Bc2 Bb3 Bb1 Nb6 d7 Bfc4 d8N Nd7 Be4 Ne5 Bf3 Be4 Nd7 Ra6 Rc7 Rd6 N7f6+ Kg6 h7 Nd7 Rc6 Rb2 Rb1 a1R Bg2 Raa2 Ra1 Rd2 Bf3 Rab2 Ra3 Ba2 Bg2 Bcb3 Nfh5+ Ngf6 Ne8 Rg8 h8Q Rg7 Bf3 Re7 Neg7 Re8 Qe5 Ree6 Qg8 Re7 Qge6 Kh7 Qc3 Kh8 Bg2 Ng8 Bf3 Bec2 Be4 Bcb1 Bg6 Bf5 Be8 Bfb1 Qg6 Re5 Qe6 Be4+
K1RQNNq1/2pBn1r1/1N3Q1R/5nNb/2r2k1B/bb5n/2rr4/BNN2n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 h5 d4 a5 b4 h3 b6 h2 d6 f5+ Kd5 a4 e4 h4 b7 a3 b5 h3 e5 a2 e6 Ra6 b6 Nd7 Kc6 Ndf6 b8N Nh7 d5 Qf6 e7 Qg6 e8N Be6 Kb7 Bd7 Bb5 Ne7 Qf1 Rg8 Ne2 Be6 d7 Ra4 d8B Rc4 d6 Rg7 Bb2 f3 d7 f2 Nc1 f4 Ka8 f3 b7 Kf4 g5 Qf7 g6 Qg8 Bc6 Ng5 Ba4 Rc2 Qa6 Bb3 Qf6+ Nf5 Be7 f1N d8N f2 Nf7 Ng3 Nd7 f1N b8N Rc4 Bd8 Ba3 Nf8 Rc2 Bd7 Rc4 Qc3 Ne7 Qf6+ Ngf5 Bd4 Nf3 Ng5 Ng1 Bb5 Rc2 Nbd7 Rd2 Nb6 Rc2 Nd2 Rc4 Rb1 a1R Bd7 Ra2 Ba1 Rac2 Rb2 Ne2 Nb1 Rd2 Rg1 h1R Ra2 Rh2 Rh1 Ng1 Rb2 Rh7 g7 Rhf2 Ra2 h2 Rb2 Nh3 Ra2 Qh8 g8Q Rg7 Qd5 Qg8 Qd3 Bb4 Ra7 Rg2 Rb7 Rdc2 Rb8 Rgd2 Rc8 Bc5 Rg1 h1B+ Rg2 Nc6 Rh2 Ba3 Be7 Bf3 Qd5 Nf2 Rh6 Bg4 Be6 Bh5 Qd8 Nh3 Bd7 Ba2 Bc5 Bb3 Bf2 Ne7 Be1 Ba4 Bh4 Bb3
5q1r/1q1k1B2/QB3qQK/8/rNqb1B2/1RN1nn2/1NB1bp1b/2B1bRB1 w - - 0 1 illegal: No possible last move
1R6/3Nr1b1/k2nqn1N/4q2N/NQ2b2N/1RB4r/Bp3n1K/Q1rN1Rrn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 c5 Kf2 Kc7 d4 Kb6 g4 h5 Kg2 e5 d6 c4 f6 b3 d7 e4 f7 e3 a5+ Kb5 d5 b2 f5 b6 g5 e2 a6 e1Q d6 h3+ Kh2 h4 g6 Qf6 d8R Nh6 d7 Qa5 g7 Rh7 g8N Bb7 a7 Qe6 f6 Be4 Ra3 Nf5 Nf3 Nd6 Bd2 Bg7 f8Q Ka6 f7 b5 Bc3 b4 Rb3 Qad5 Nf6 Qde5+ Kg1 h2+ Kg2 Qe7 Nh5 Q7e6 Rg1 h1N Be2 Q6d5 Rf1 h3+ Kg1 Nf2 Nh4 Qee6 Kh2 Qdf5 Rc8 Qg5 d8N Nd7 Rb8 Nf6 Qe7 Qc5 f8N Qe3 Na3 b1R Nb5 Qg5 Nd7 Qge5+ Ng3 Rc1 Nf7 Ra1 Nh6 Rb1 Ba1 c3 Bc4 c2 Bc3 c1R Qf8 Nd5 Qf4 Nf6 Nh5 Ra1 Rd8 Rb8 a8N Ra3 Rh8 Rg8 Nab6 Raa1 Na4 Ra3 Kg3 h2 Bd5 h1N+ Kh2 Re8 Qe1 Re7 Rb8 Rh8 Ba1 Rhc8 Nbc3 Rg8 Bb2 Raa1 Nd1 Rab1 Bc3 Ra1 Ra3 Rab1 Ba2 b3 Ng3 b2 Rab3 Bh8 Nh5 Rg3 Bd4 Bg7 Qb4 Rc5 Bc3 Rc1 Qe3 Rd5 Qf3 Rg1+ Qg3 Rd3 Qf4 Rdg3 Qf5 Bf3 Qb1 Be4 Qa1 Rh3+
2r2NR1/qrk2NRb/2r1r2B/1Rn3N1/Bp6/Q2b3b/R1R1Bbq1/K2nB3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 e5 Kc2 b5 Kb2 c5 g4 h5 f4 c4 a4 e4 g5 e3 g6 b3 a5 h3 a6 e2 f6 e1Q f5 h4 d6 b4 d5 h2 a7 h3 g7 Qh4 f7 Ne7 g8R Qd4+ Nc3 Bh6 f8B Qf6 Qf3 Rh7 Rg7 Qa5 Ra2 Qg5 f6 Na6 f7 Nc5 Nb5 c3+ Ka1 c2 Be2 Qg2 Bd2 Be3 Be1 Bf2 Qc3 Qa3 Nf3 Nf5 Ng5 Ne3 Rg1 Kd8 d7 h1B Nd6 Kc7 d8R h2 Qd3 Bf5 Rb8 Nd1 Rb5 Rc8 a8B Qa7 Bc6 Bh3 Rg8 Rg7 Qe3 Rg6 Bh6 Rf6 f8N Re6 Qd3 c1R+ Qb1 Qb8 Ndf7 Qa7 Bd7 Rc2 Qc1 Rc3 Qa3 Rc4 Rc2 b2+ Ka2 b1B+ Ka1 Rc3 Ra2 Bh7 Bc6 Qg4 Rg7 B1e4 Rg2 h1R Be8 Rb6 Rh2 Rb7 d6+ Kb8 d7 Bd3 d8R Kc7 Bd7 Rg1 Rc2 Rg3 Be8 Re3 Ra2 Re6 Rg2 Bc4 Rdd2 Bcd3 Rdc2 Qe4 Rg8 Kb8 Rb6 Nd7 Nf3 Kc7 R2g7 Qg4 N3g5 Qf3 Ng6 Qg2 Nf8 Nb8 Bb5 Nd7 Ba4 Rcc6 Rb5 Nc5
2NNnBQR/1n6/1b1N1B1r/1K1p2R1/2nN1R1b/q1r1b1nb/B2kBq2/1B6 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 f4 a5 b4 e5 b6 h5 b5 h3 f6 a4 f7 d3 b7 d6 b6 d2 f5 Ke3 g5 e4 g6 h2 f6 a3 g7 h4 Nf3 h3 Bb2 a2 Be2 Ra5 Nd4 Nc6 b8N Re5 b7 Qe7 Nc3 Rh6 Ncb5 Nd8 Nd7 Rc5+ Kb4 Rc7 b8N Nb7 Nb6 Rc3 Nbc6 Bd7 Qb1 d1N Nc8 Kd2 Nd8 Ne3 Qg1 Nc4 Qg5+ e3 Rag1 a1B Qg6 Ne5 Rg5 Nc4 Rf1 h1N Rf4 h2 Ka4 Qe8 Qh7 Be7 f8R Bh3 f7 Nf6 Rh8 Ng3 g8B h1Q f8B Qg2 Bf7 Qd7 Qg8 Ne8 Be6 Qf2 Bd5 Nca5 Ba2 Nc4 Kb4 d5+ Nbd6 Qg4 Kb5 Qgf3 Rg7 Bh4 Rg5 Ra3 c3 Ne5 c4 Rc3 c5 Nc4 Rgf5 Bg5 c6 Bh4 c7 Bg5 Bd3 e2 Bdb1 Bh4 Rg5 e1B Ne7 Qd3 c8B Qde3 Bg4 Qd3 Ba3 Bb2 Nec8 Bc1 Be2 Qde3 Bb2 Qe7 N6f7 Qa3 Rg7 Qf3 Nfd6 Bf2 Rg5 Bg1 Nc2 Bb6 Nd4 Qf2 N4f5 Rf3 Bf6 Rc3 Nd4 Ke1 N4c6 Bce3 Nd4 Kd2
3r1R2/1R2r1B1/3k1b1p/1b1Brn2/R3bq2/q5Q1/BbR1nQK1/1NRR2Nr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 c5 g4 a5 e4 f5 d4 h3 g5 c4 e5 h2 b6 a4 b7 a3 b5 h6 g6 a2 d6 c3 g7 c2 b6 f3 d5 f4 Bb2 c1R Qe1 Ra5 Be2 Qe7 Bc4 Nc6 b8Q Nd4 b7 Ne2 Bb3 Rc7 e6+ Ke8 Kf1 f2 d7+ Kd8 Kg2 Qa3 Bd4 Ke7 d8R Bd7 Rc8 Kd6 e7 Bb5 e8R Be7 Rf8 Bf6 Qd2 Ne7 g8B Nf5 Qe3 Bg5 Bg7 Bf6 Qba7 Re7 b8R Bd3 Qg3 Bb5 Rb7 f1B+ Kf3 Bd3 Rc2 Rb5 Qaf2 Rc5 Ra8 Bb5 Bf7 Rd8 Ra4 Bd3 Nc3 Bb5 Rd1 a1B Ba2 Bd3 Nb1 Bab2 Nh3 Rb5 Rg1 h1R Bg8 Ke5 d6 Rd5 d7 Kd6 Be6 Re5 Bed5 Bb5+ Kg4 f3 Rdc1 Bg2 Rgd1 Bf1 Ng1 Bd3 Qd4 f2 Kf3 Nc3 Qdh4 Bb5 Qhf4 Bfd3 Qd4 f1Q+ Qdf2 Qe1 Kg2 Qe3 Re4 Qf4 Rd4 Rh8 Ra4 Ne2 d8R+ Rd7 Re8 Rde7 Rf8 Rg8 Rf7 Rd8 Rf8 Be4+
4nNB1/R1nqr1rB/p4K2/RbQB2B1/3N1BB1/Q2bRq2/6r1/b4krb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 c4 Ke4 b4 d3 c5 d2 g6 Ke3 Kf5 Kf2 g4 h5 e4 a6 b6 h4 g7 f3 c6 h3 g5 h2 b5 f6 c7 Nc6 g6 Na7 b7 Rh7 b6 Nb5 b8Q Ra7 e5 d5+ e6 d4 b7 d3 Bg2 Qd7 Qa4 d1Q Bg5 d2 Na3 Ke1 Qb3 f2 Nc4 f1B Ra5 Bd3+ Be4 Bb4 Qa3 Bc3 Ne5 Ba1 Ngf3+ Kf2 Re1 h1B Re3 Kf1 Nd4 Qe2 Qa8 d1R b8B Rd2 Qd5 Rb2 Qdc5 Qf3+ Bf4 Bb7 c8B Bc6 Bc7 Rbh2 Bd8 Nc7 Be7 Rg2 Bd8 Qf7 e7 Bcb5 e8R Qd5 Be6 Qd7 Rf8 Ra8 Be7 Re8 Bd8 Re7 Rf7 Qd6 Nd7 Qc6 Nf8 Qd7 Qcb4 Kg1 Qbc3 Re8 Qc4 Qd6 Qca2 Qh5+ Bg5 Nd5 Rb7 Re7 Qc5 Qd7 Bc7 Qd1 Bd6 Nc7 Bg3 Nh6+ Kf4 f5 Ke5 f4 Kf6 f3 Qaa3 f2 Bg4 f1R+ B3f4 Nf5 Bd5 Qf3 Ra7 Re1 g8B Rf1 g7 Nd6 Bdf7 Kf2 Bg6 Rfg1 Bd5 Kf1 g8B Rhg7 B6h7 Nde8#
n1Q1BRR1/Q1R1qBB1/2n5/b7/2rr4/kbN3pp/1N1Bn2B/KbB1q2r w - - 0 1 illegal: No proof kernel
6N1/b3qR2/1r2k1n1/q2Rr2Q/nN1KB3/n4Bpp/1Rb2N2/1qRRBN1r w - - 0 1 illegal: No proof kernel
1R1N1n2/B1B4q/1Q1b1QB1/rB3rp1/q1Bbb3/4pNKn/rk5B/2n2RR1 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 b4 Kf7 h4 Ke6 c4 Ke5 f4+ Kf5 Kf2 a5 h5 e5 h6 d5 b6 g5 b5 e3+ Kg3 Ke4 f5 d4 c6 d3 f6 Kd4 c7 a4 h7 a3 f7 a2 c5 e2 c6 e1R b7 d2 b6 e4 Ne2+ Kc4 Nd4+ Re2 Ne6 Ra5 Rg1 Qd7 Nd8 Na6 b8B Nc5 b7 Nb3 Ba7 Nf6 b8R Bb7 c8B e3 c7 Qa4 Ba3 Nd7 Bd6 Be4 Bf4 Bd6 f8B Rg8 h8Q Nc1 Qf6 Rg7 Bb7 Rf7 c8B Kb4 Be7 Nf8 Be6 Qd7 Qc2 d1Q Qc7 Q1a4 Nd2 Ka3 Nf3 Rb2 Rb1 a1B Bb5 Ra2 Bec4 Bd4 Qb6 Qf5 Ra1 Kb2 B7c6 Qh7 Be8 Rg7 Bg6 Rf7 Qe6 Rf5 Qf6 Nd3 Raf1 Nc1 Kg2 g3 Be5 Bb4 B7d6 Bc5 Bc7 Be7 Bh5 Bd6 Kh3 g2 Bh2 Ba3 Kg3 Be7 Rh1 g1N Bg6 Nh3 Rhg1 Bd6+
2krB1B1/2bbr2r/4R1BB/2nQQp2/2B1NB2/q3R3/1n2npN1/1qR1q2K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 c4 a5 e4 d5 b4 Kd7 g4 h5 Kg2 d3 e5 d4 b6 a4 c5 a3 b7 d2 g6 d3 g7 h4 g5 a2 b5 Nh6 g8B Nf7 g6 Qe7 c6+ Kc7 e6 Nh6 g7 Bd7 Nh3 Rh7 Bf7 Qa3 g8B Bd6 e7 Na6 b8B+ Kc8 e8B Ng4 b6 Nf6 c7 Nh5 Nc3 Ng3 Ne4 Ne2 Bg6 Nc5 Kh2 f3+ Nf4 f2 Rb1 a1Q Rb3 Kb7 c8R h3 Rc6 Bc7 Re6 Qb1 Rc3 Kc8 b7+ Kd8 Qb3 d1N Qd5 d2 Re3 Re7 Rg1 Nb2 Kh1 d1Q Ng2 h2 Bd2 Ba5 Bf4 Bc7 Bh6 Rc8 b8Q Qe1 Qb5 Rb8 Qa5 Kc8 Bc1 Nc3 Bc4 Ne2 Qe5 Kb7 Qd2 Rd8 Qdd5+ Kb8 Rf3 Kc8 Bcf4 Rg7 Re3 Re7 Rf1 Qc2 Bg7 Qeb4 Rc1 Qb1 Ne1 Qc2 Kg2 h1R Bf8 Rhh7 B8h6 Qb1 Kh1 Qbc3 Ng2 Qe1+
1rn1nbR1/N4q2/1NN2qrp/1RRB4/6Qq/3kpNNb/Kn3B1R/4B1r1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg6 d4 a5 Kd2 c5 Kc3 e5 Kb3 h3 f5+ Kf6 g5+ Ke7 d6+ Kf7 d5 e3 d7 h2 b6 h6 d6 a4+ Ka2 e2 b4 e1R b5 c4 b7 a3 f6 Ke6 f7 Kf5 g6 Ke4 g7 c3 b6 c2 Ne2 Ra7 Nd2+ Kd3 Ng3+ Kc3 Qg4 e4 Bc4 e3 Nf3 Rg1 Bd5 Re1 Bd2+ Kd3 Rc1 Rg1 Be1 Qh4 d8B Nc6 b8N Ra6 b7 Nce7 d7 Nf6 g8R Ne8 Nc6 Qh5 Na7 Rg6 b8R Qf5 Kb3 a2 Rb5 a1Q Bc7 Qaf6 d8N Be6 Ndc6 Nc8 Ka2 Qf4 Bca5 Bf5 Bf2 Bd7 Qg5 Bh3 Bae1 Qc7 Qg4 Qce7 Rc5 Qb7 Rb1 c1N+ Ka3 Qc7 Rb5 Rh7 Qe6 Bg4 Nfd4 Be7 f8N Bf5 Nd7 Bf8 Bb4 Bg4 Rc3+ Kd2 Nde5 Nd3 Nd7 Nb2 Rcc5+ Kd3 Ka2 Bf5 Nb6 Qd7 Bb3 Qd5 Bbe1 Rb7 Qd7 Qdf7 Bd5 Rb8 Nf3 Rf1 Rg1 h1Q Rg2 Qhh4 Rh2 Bh3 Qg4 Rg1
3b1B1n/RRN1B3/r1k1p3/1b3p1r/BRn2q2/1BRb1q1r/B4Q2/KN3Nn1 w - - 0 1 illegal: No proof kernel
nNBR2RN/5KBp/2bbB2R/5rq1/1N2rB2/krpb1Qq1/2nq1N2/4B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 f5 g4 a5 e4 c5 g5 f3 d6 h3 d5 c4 d7 a4 Ke6 f2 d6 c3 g6 a3 g7 f4 e5 h2 b6 f3 b7 a2 Bf4 Nc6 b8N Na5 Kf7 Ba6 e6 Qb6 d8N Be7 d7 Bc5 e7 Ra7 e8B Qb5 Bh3 f1R Na3 f2 Qf3 Nf6 g8R Rb7 Be6 Ng4 Nh3 Nc4 Rd1 a1Q Nc2+ Ka4 b4 Qc1 Bh6 Nb6 Bg7 Na8 Rd5 Qa5 b5 Qd2 b6 Bd6 Nb4 Ne3 Rd3 Qg5 Rd5 Ra7 b7 Nc2 Rd4 Re1 Rd5 f1Q Nf2 Re5 Nh3 Qg3 Bf5 Qde2 Kf6 Qfe1 Be6 Re4 Nf7 Qgf2 d8B+ Qb5 B8d7 Bf8 N8c6 Bc5 b8B Kb3 Bf4 Qfd2 Re8 Rf8 Bc8 Qa5 Bb6 Bd3 Nb8 Qg3 Rd4+ Kb2 Rdd8 Bd6 Bf2 Qh5 Be1 Ra3 Nf2 Rb3 Bd5 Ka3 Bde6 Bc7 Ke7 Qh6 Nh8 Rf5 Rg8 Bd6+ Ke8 Qhh4 Rg1 Qgg5 Rg3 Qhg4 Rh3 Qg3 Rh6 h1B Qe2 Ree5 Qh5 Bb7 Qh1 Re4 Qf3 Rd5 Kf7 Bc6 Rge8 Rb5 Rg8 Rf5+
nqb1B1B1/2qq2p1/N6b/bnR5/1RQBnk2/3r1rp1/B2R2RN/2K3RN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 c4 Ke6 h4 Kf5 e4+ Ke6 b4 f5 c5 d5 c6 a5 h5 a4 c7 f4 h6 f3 h7 f2 b6 a3 b7 a2 b5 g3 b6 d3 Qb3 Ra7 Nh3 Bd6 Rh2 Bd7 c8R Na6 b8N Nh6 b7 Nc7 Bb2 Na8 Rc5 Ng4 Kd1 Qa5 Nd2 Nf6 Nf3 d2 Bc4 Rf8 h8R f1Q+ Kc2 d1N Nf2 Qh3 Nh1 Nc3 Rg1 a1B Kc1 Qc7 Rc2 Ra6 Nh2 Ra3 Rcg2 Qh4 Qa2 Bc8 Na6 Rb3 b8R Qg4 Bd3 d4 Bb1 d3 Qa4 Rf7 Ba2 Be7 Rd8 d2+ Kc2 Qe2 Rd4 Qb5 Qc4+ Nfd5 Rb7 Bg5 Rd3 Bh6 Rb6+ Ke7 e6 Kf6 e5+ Kg5 e7 Rf3 e8B Nf6 Bf7 Nfe4 e6+ Kf4 e7 Qb4 e8B Qb5 Re6 Qbb8 Rb6 Ra3 Rb3 Nb5 Bf6 Be5 Bg8 Bc3 Rd8 Ba5 Rb4 d1Q+ Kb2 Qd3 Kc1 Qdd6 Bb2 Qe6 Rdd2 Rad3 Bd4 Qed7
3Q2bN/2rn1pR1/1q1B4/N1b2B1B/1B2Q3/p2rn2B/1qQqrB1R/kb5K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kc5 b4+ Kd4 e4 a5 g5 c5 g6 h5 b6 a4 e5 c4 e6 c3 b5 c2 e7 a3 e8B Bh6 g7 Qc7 d6 Bg5 d7 Be7 d8B Qc5 b7 Bd6 b6 Ra5 Ba4 Nd7 b8Q Ngf6 g8B Ra7 b7 Nd5 Ba5 Qb6 Qa8 Bc5 b8B Rc7 Bh7 Rd8 Rh2 f3+ Kh1 f2 Bb4 h3 Bf5 h4 Ne2+ Kc4 d4 Ne3 Bcd2 c1Q d5 Qb2 d6 Ba6 Bg2 f1B Nf4 Bd3 Be1 Kd4 Nd2 Bb1 Qb3 Bad3 Nc4 Qd2 Bf2 Bdc2 Bg4 Bh7 Na5 Bg8 Ng6 Qb2 Qa2 Kd3 Bb5+ Kc2 Nh8 Kc1 Qc6 Qd2 Qad5 Kb2 Bf5 Re8 Qc4 Re5 Q6e4 Rd5 Bf3 Rd3 Rg2 h2 Rg7 Bc2 Rd1 Bb1 Qc2+ Ka1 Bh5 Qc3 Be1 Qb2 Bbd2 Ra7 Bb4 Rd5 Bf1 Nf6 d7 Rd3 d8Q Nd7 Bd6 Rc7 Rd2 Nd1 Kg2 h1R Qd4 Ne3+ Kf3 h3 Qe4 h2 B1h3 Rg1 Rdg2 h1Q Bf2 Re1 Kg3 Re2 Rh2 Qhc1 Kf3 Ng4+ Kg2 Qd2 Kh1 Ne3
1B1qr3/bR3pp1/2r5/RKnNrB2/1N3Rbb/1knRQ3/N2n4/Q1Rq2R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 a5 Kc4 c5 b4 g3 e4 f3 h4 a4 b6 g2 b7 f2 h5 a3 h6 a2 b5 Qh4 e5+ Kc7 h7 Kb6 e6 Ka5 e7 Nf6 e8Q Qe4 b6 Qe3 d6 Qf4 d7 Ng8 d8N Qd2 d5 Bh3 d6 Bg4 d7 Nc6 b8R Qb2 b7 Nd4 Bf4 Qd2 Bd3 f1N Ne2 g1B Nbc3 Nf6 Bf5 Be7 Nc1 Ne2 Rc8 Ne4 b8R Bh4 Nd5 N2c3 Rb7 Rg8 Qe5 Re8 h8R Bd4 Qe1 Ka4 Rg1 Ra5 Nc6 Qd1 d8R Nfd2+ Kd3 Bdf2 Qe3 c4+ Kd4 Ka3 Ncb4 Nc5 Qf6 Rb5 Bb8 Ra5 Rh5 Rb5 Rb1 a1Q Nca2 Ka4 Rc1 Kb3 Rcc7 Qb2 Rdd7 Qa3 Rd6 Qa8 Re7 Qa5 Re4 Qd8 Rf4 Rb6 Rdd7 Rbe6 Bg6 Re5 Bd3 Ncb1 Bf5+ c3 Qa6 Nce4 Kd3 c2 Qaa7 Nbc3 Qad4 Na4 Qa1 Nac3 Kd4 Nf6 Kc5 Nfe4+ Kc6 Nc5 Nc7 Qe2 Rd3 Qf3+ Ncd5 Qh1 Rce1 c1R Rg5 Rc2 Rc1 Qf3 Rh5 Qd1 Qf3 Na6 Be4 Ba7 Ne3 R5e7 Ra5 Re5 Qh3 Bg3 Bf5 Bh4 Rdd4 Nd5+ Kb5 Rc6 Qf3 Nc5 Qg3 Nf6 Ned5+ Nd3 Qe3 Nfe4 Nc3 Ndc5 Rd3 Qe1 Qe2 Qf1 Qe3 Qd1 Nca2+ Nc3+
bKr3kB/4p1q1/1Rr3Q1/6R1/R1p1Q1NN/1Rqrb3/2qnR1Bn/1bQR4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 a5 Kd4 h5 Kc5 a4 b4 c6 d4 e3 g4 h3 f4 a3 d6 e2 g5 e1R g6+ Kg7 d7 a2 d5 h4 b6 h2 f5 h3 b7 Ra6 b5 Qa5 d8Q Ra7 d6 Rh4 f6+ Kh8 f7 Re2 d7 Qd2 Kb6 c5 Kc7 c4 g7+ Kh7 b6 Rg2 Nc3 Rf2 Nd5 Rf3 Ne3 Rh6 Bg2 Qc3 Bb2 Nc6 Qc1 Nd4 Kb8 Nb3 Ng4 Rc6 Qe8 Nh6 d8Q Rd3 g8R Bf5 Nf3 Nd2 Rd1 h1Q Qd4 h2 Rg5 Qc2 Qd5 Qe1 Bh8 h1B Nh4 Bg7 f8R Bd4 Qf3 Be3 Qe4 Bg6 Rf2 Bf5 Ne5 Ng4 Re2 Nh2 Ng4 Qg1 Rb1 a1Q Rb4 Qe1 Ra4 Qg7 Qh5+ Kg8 Qg6 Re6 Kc8 Qg3 b8R Qh3 Rb7 Rc6+ Kb8 Qg3+ Rc7 Qe5 b7 Qec3 Rd7 Rc7 Rd6 Ra6 Re6 Rac6 Rf6 Rc5 Rfa6 R5c6 Rb6 Re6 Qd5 Q3b2 Rc6 Ra3 Bh3 Qcb3 Ka8 Bb1 Qd4 Bf3 Bg2 Q3c2 Qf4 Bd5 Qfe4 Rd3 Rd6 Qbc3 Rda6 Rc5 Ka7 Rb6 b8R+ Rc8 Rb7 Rc7 Kb8 Rf6 Rb3 Ba8 Rc6 Rfd6 Rca6 Rdc6 Rab6 Rc8+
1B2n1q1/1p6/KbQ3N1/Q6b/rqBQNR1b/1nr4r/BB3pkB/4nRB1 w - - 0 1 illegal: Other
6NB/brQK1b1b/b6N/1rB4B/2kp2R1/q1p1b1BQ/r2B3n/BnNR4 w - - 0 1 illegal: No proof kernel
1n3nk1/n1B2R2/K1N2r2/p1R1n3/B1N5/1rNNRNpQ/1b1Q3q/1nN1rb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 c5 Kd3 g5 Kc4 f5 h4 Kf7 e4 f3 b4 f2 h5 g3 h6 f4 e5 f3 h7 g4 e6+ Kg7 b6 g2 Kb5 g3 b7 c4 e7 c3 e8R c2 d6 Na6 b8N Bd7+ Nc6 Bf5 d5 Kf7 d7 Rc8 d6 Ra8 Nd4 Nc5 Rh5 Qh4 d8N+ Kg7 d7 Ne6 Qd2 Rb8+ Ka6 Ne7 b5 Bh3 b6 Nc6 b7 Na7 Nc3 Ba3 Nde2 Rf8 Nc6 Rf6 d8N Nf8 Re3 Bb2 Ne6+ Kf7 h8N+ Kg8 Rc5 Qh7 Ng6 Qh4 N2f4 Qh7 Be2 f1N Ng5 f2 Bd1 Nh2 Ne5 f1N Ra3 Ng4 Nge2 g1N Nfd3 Nf3 Nc4 Nfe5 Nf3 Ned7 Re7 Bg2 Rf7 Nge5 Rb3 Qh2 Ra3 Re8 b8Q Bh3 Qd6 Rb8 Qe6 Bg2 Qh3 Rb3 Qe3 Nd2 Qd4 Nf1 Bf4 Nd2 Nec1 Nb1 Qe3 Bf1 Qd2 Ng4 Bc7 Nge5 N1a2 c1R Bc2 Re1 Nac1 Rb8 Ba4 Ng4 Re5 Rb7 Re3 Nge5 Rb3 Rb8 Rb5 Rb7 Rd5 Rb3 Rc5 Nb8+
BQbN2r1/RB1b2b1/p6n/bB2p3/3q1BnQ/2n3K1/1k3B1R/b1N1Br1N w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 b4 Kf7 c4 Ke6 f4 g5 Kf2 d5 h4 e3+ Kg3 e2 b6 e1N c6 d4 h5 d3 f5+ Ke5 b5 Kd4 c5 e5 b7 d2 c7 Bg7 c6 Qf8 f6 Rh7 f7 Bh6 b6 Qa3+ Nc3 Qa4 f8B Nd3 Bb4 Bg7 h6 Nc5 Ne4 Nbd7 b8Q Ndf6 Qe1 d1B b7 Bb3 Nf2 Bbe6 Ra2 Bed7 Bb5 a6 Bf4 Rh8 h7 Nh6 Re2 Rd8 h8N Rg8 Nf7 Rf8 Nd8 Nce4+ Kh2 Nc3 Kg3 Qd1 Rh4 Rf7 Nh1 Qa1 Reh2 Qa4 Kg2 g3 R4h3 g4 Ne2+ Kd5 Nc1 Kd4 Kf1 g2+ Kf2 g1B+ Kg3 Be3 Rh5 Bd2 R5h3 Nhg8 Rh7 Nh6 Ba5 Nd1 Bb4 Bc3 Ba5 Ba1 Bad2 Nc3 Qe4+ Kc5 Be1 Qc4 Qd4+ Kb4 Qf2 Ka3 Qd4 Be6 Qe4 Bcd7 c8B Qd4 c7 Rf8 Qa7 Rf7 b8B Bf5 Bb7 Bfe6 Bf2 Kb2 c8B Bf5 Bd6 Rb8 Kg2 g3 Ba8 Nfg4 Bcb7 Rc8 Kf3 g2 Bb4 g1B Kg3 Rf8 Qb8 Rf7 Ne6 Rg8 Nd8 Rff8 Qg2 Bc8 Qh3 Bfd7 Qh4 Na4 Bbd2 Nc3 Bfe1 Be3 Bf2 Rf5 Bde1 Bd2 Qf6 Nd5 Qe7 Ba5 Qh4 Nc3 Bg5 Rf4 Bd5 Bc6 Be3+ Rf2 Bgf4 Bh8 Ra7 Bg7 Bf3 B6d7 Bfb7 Qd2 Bb6 Rf1 Bbf2 Qd4
2RbN3/2BN1Npn/2Brp2Q/1B1NR3/b1qNK1r1/b7/kb6/1NnnQ1b1 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Ke3 Ke6 f4 d5 h4 a5 b4 a4 c4 a3 h5 g3 b6 g2 h6 a2 f5+ Ke5 b7 e6 c6 Qc7 b5 Rh7 c5 Ra6 f6 Qd8 f7 Rb6 c7 Rh8 c6 Nd7 b8Q Ndf6 h7 Nh6 Nf3+ Kd6 Rh5 Kc5 Qe1 Bd7 c8B Qc7 Re5 g1B+ Kf4 e3 Nd4 e2 Bb7 Bd6 f8N Kc4 Ng6 Nhg4 Ne7 Ba3 Qc8 Ra6 b6 Nf2 Kf3 Rd8 h8N Nh7 Bf4 Ra4 Nf7 Nd3 Qa8 Qc8 c7 Nc1 Bc6 Be8 b7 Rd6 b8N Bd7 Nb3 d4 Ke4 d3 Nd5 d2 Nd4 d1N Qaa5 Qa6 c8N Be8 Qad2 Rb4 Bb7 Ba4 Nd7 Qb5 Bg3 Qc5 Qh6 Qb5 Nf5 Kb3+ Nd4+ Kb2 Bc6 Qc5 Bf4 Qc4 Qeh4 e1B Be2 Qc3 Beb5 Qc4 Qg3 Bc3 Qe1 Bd2 Ncb6 Bc3 N5f6 Bd2 Bg3 Bg5 Ne8 Bd8 Nd5 Rb3 Bh2 Rg3 Nbc3 Rg4+ Bf4 Ne2 Rc1 a1B Nb1 Ka2 Ba8 Qb3 Rc8 Nc1 Bb7 B1b2 B7c6 Rg3 Bd2 Rg6 Ba5 Qc4 Bc7 Rg4+
3NRn1B/1Bp5/1kpnR3/r1r1b3/b5br/BqNN1Q1N/3b1KBb/N5R1 w - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 c4 gxh4 a4 Bg7 axb5 Bh6 c5 Bf8 c6 dxc6 f4 Kd7 g4 h5 d4 e5 b4 a5 b6 e4 f6 h3 d5 e3 b5 a4 f5 h2 d6 e2 b7 h4 b6 a3 g5 a2 g6 h3 g7 Nh6 g8B Rh7 f7 Qe7 f6 Bg7 f8R Ra6 f7 Bf6 Bb2 Ra7 Bg2 Bg7 Re8 Nf5 f8B Qf7 Kf2 Be5 Nc3 Qb3 Bc4 Ra5 Ba6 Rh4 Qf1 Rc5 Re1 a1B Ba3 Ra4 Bg7 Raa5 Bh8 Bf4 Re6 Kd8 d7 Nd6 Rg6 Ke7 d8N Nd7 b8N Nf8 b7 Bg4 Nd7 Bb2 b8N Ba1 Nb1 Bae5 Bb7 Bd2 Na6 Bdf4 Nf3 Bd2 Rg1 h1B Ng5 h2 Nc3 Bdf4 Be4 Bhf3 Nb4 h1R Nd3 Rh4 Nh3 Bh2 Bd5 Be4 Qg2 Bef5 Qg3 Be6 Bg2 Bc4 Qf3 Bb5 Nb6 Ba4 Nc4 Kd7 Ne3 Ke7 Re6+ Kd7 Ba8 Kc8 Bb7+ Kb8 Nc2 Ka7 Na1 Kb6 Rc1 e1B+ Ke2 B1g3 Rce1 Bgf4 Kf2 Bd2 Re8 Bef4 R1e6 Be5
R1NBb1RN/pr1kpr1Q/3b1b2/r1RK4/1B2N1Nq/4BB2/3B2nn/2r2n2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 h5 Ke3 c5 b4 h3 g4 c4 Kd4 e3 f4 h4 g5 e2 f5 e1R f6 h2 g6 h3 b6 c3 g7 c2 d6 Bd7 b7 Re2 b5 Rg2 b6 Rf2 Nf3 Rh5 Be2 Nh6 g8R Rg5 Ra5 Rg7 Ne5 Rg1 Rc5 Nf7 Kd5 Nh6 d4 Rg5 Bd2 c1B Nc3 Rf1 Ne4 Rg3 Bf3 Na6 b8N Rg5 b7 Ba3 Qb1 Ng4 Qd3 Ba4 Nd7 Rb8 Nb6 Rc1 Rd1 h1R Nc8 h2 Rf1 Qa5 f7+ Kd8 d7 Qb4 Rd1 Rf1 Qb1 h1N Be3 Ra8 b8B Nh2 Bd6 Rb8 Rd2 Ng3 Qc2 Rg6 Ng4 Rb7 Bdf4 Rc6 Bh6 Kc7 d8B+ Kd7 Ba5 Bg7 Rd3 Qe1 Bb4 Bf6 Bed2 Rcb6 Bhe3 Rb5 Rc3 Ra5 f8N+ Ke8 Ng6+ Kd7 Nh8 Nc7+ Kc4 Qf2 d5 Ne6 d6 Nf4 Rd3 Ng2 Kd5 Bc6+ Kc4 Nh5 Nc3 Ng7 Rh5 Bd4 Bd1 Nf5 Nb6+ Ke6 d7 Rh1 Bd6 Bb2 Bb4 Ng3 Rc5 Be5 Rdd5 Qf6 Qh7 Rf1 Rd4 Rf4 Bf3 Qh4 Ra8 Bb8 Nc8 Rf7 Rdd5 Bf4 d8B Ngf1 Rg5 Be8 Rg8 Kd7 Kd5 Bd6 Ne4 Bf6
r1nnNB2/2R1RB1q/N2N2r1/1Rb2qpN/2B1K3/8/3Qb2p/2rrrkBN w - - 0 1 illegal: No proof kernel
2K1b1RB/q1B1R1nN/2qn2rb/p3B2N/1k3NBR/5Q2/3pr1rr/2R3rR w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kd6 c4 Kc5 f4 a5 b4+ Kb6 c5+ Kb7 c6+ Kb6 c7 e5 Nd2 e4 Qf3 e3 Ra4 d3 Ne2 d4 Bb2 h3 Ne4 d2 Nf6 d1Q Nh5 Ba6 c8R h6 f6 h2 Kf5 d3 Ke6 d2 g4 Qc1 f7 Nc6 g5 Qc7 g6 Nf6 f5 Ne5 g7 Ne8 g8R Nc4 f6 Qa7 Bh3 Ncd6 Nef4 e2 Bg4 e1R+ Be5 Bg7 f8R Re2 Rf7 Qc6 Re7 Bf8 f7 Ng7+ Kf6 Rg2 Rcc7 Re8 Ba1 Qcb7 Rcc1 Qc6 Bb2 Bc8 Be5 Bd7 Ba1 Kb7 b6 Ka6 b7 Kb5 b8B Rh7 Bc7 Rh8 Rhg1 h1R Rgf1 Rh4 Rh1 Rhh2 Bc3 Kc4 b5+ Kc5 b6 Kb5 Ree1 Ree2 b7 Be8 b8B Kc5 Re4 Rh7 Bd4+ Kb4 Ke5 Be7 f8N Bg5 Ng3 Rh8 Nh7 h5 Ba1+ Kb5 Bb2 h4 Ngh5 Bh6 Kf6 h3 Ke7 Qd4 Kd8 Qa7 Re7 Kb4 Bd4 Re6 Re4 Rg6 Ra1 Re2 Rac1 Rhg2 Bb2+ Nc4 Kc8 h2 Rhf1 h1R Bf6 Rhh2 Rh1 Rg1 Rd4 Rhg2 Rde4 Qb5 Bce5 Qa4 Bbc7 Qc6 Ne6 Qf2 Bf5 Qd5 Nhf8 Be3 Ng3 Rhh2 Nh7 Nh5 Rh4 Qc6 Bh8 Bh6 Bg4 Ng7 Nh5 Qa7 Nef4 Nd6+
bQQ1Qn1b/K5RQ/2N2q2/Q7/n4q1n/3B1Rr1/p3prr1/N1knR1BQ w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 e5+ Kc4 h5 d4 c5 b4 a4 g4 e3 f5 h3 g5 a3 b6 a2 Kb5 h2 f6 e4 g6 e2 f7 e1N g7 h4 b7 e3 Qc2 c4 Qd1 c3 Ne2 c2 Rg1 h1R Nd2 h3 Nb3 Nf6 g8Q h2 Rg7 Rh3 Qh7 Nbd7 b8R Be7 f8Q Ng2 Qe8 Nc5 Rb1 Be6 Na1 Nh4 Rb7 Bf8 Rbf7 Nfd7 Rf3 Na4 Bb2 Rb8+ Ka6 c1Q b5 Qf6 b6 Rg3 b7 Rhg1 Ka7 h1N Qe1 Nf2 Ba3+ Kc7 d6+ Kc6 Bc5 Kd5 Qc8 Kc4 d5 Qd2 Nd4+ Kc3 Bd3 e2 Nc6 R1g2 Qh1 Nd1 Bg1 Qdf4 Qe8 Rc8 b8Q Kd2 Rc1 Be7 Rb1 Nf8 d7 Rf2 d6 Bd5 d8Q Be4 d7 Bd6 Nd4 Ba8 Nc6 Be5 Qa5+ Bc3 d8Q Rfg2 Rb5 Kc1 Qdc7 Rd8 Qcc8 Rd5 Rb3 Rdg5 Rf1 Rf2 Re1 Be5 Bb1 Rgg2 Rf3 R5g3 Bd3 Q6f5 Rg4 Bh8 Rg7 Qf6
2B5/2qRRQRR/4b1R1/4r1q1/2NR2p1/r1q3kp/nQ1b3N/B1bBq1Kn w - - 0 1 illegal: No proof kernel
BB2Rnb1/2BN1r2/R6q/q7/2B1ppr1/BR1b1nN1/kBQ1rKQb/4b3 w - - 0 1 illegal: No possible last move
NN1q2q1/1Nq2RQ1/5R2/1Q2n1nK/1p1bBRq1/1k2p2b/1Br1R2n/2Rr1R2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 a4 e5 f4 b5 d4+ Kd6 a5 c5 a6 h6 a7 e4 Qb3 e3 Bb2 h3 Kh5 c4 g4 c3 g5 h2 g6 c2 g7 c1Q f6 Qc6 f7 Qc5 f5 Rh7 f6 Qcc7 Bd3 Bh3 Be4 Nc6 Nc3 Rc8 a8N Ne5 Rf1 Rh8 Qc4 b3 Nge2 b4 Na4 Rh7 Rhg1 h1Q Qb5 Qg2 Nc5 Be7 f8R Rh8 f7 Nf6+ Kh4 h5 g8Q Nh7+ Qg5 Bf6 Nb7+ Ke7 d6+ Ke6 d7 Qf3 Ba3 b2 Rg4 b1Q Bb2 Qf5 Rgf4 Qa2 Rc1 Qg6 Rcf1 Qg8 Rc1 Qac4 d5+ Ke7 d6+ Ke6 Ng3 Qe2 Nf5 Bg7 Ne7 Qec4 Qg1 Ng5 Nc6 Rh6 Rff1 Rf6 Rfd1 Rf1 Nb8 Re1 Rd2 Rd1 Re2 Qd4 Kg3 h4+ Kf4 Qe7 d8R Bf6 Rd7 Qcd8 Re8 Rc2 f8R Qc7 Rc8 Qed8 Rdf7 Bh8 d7 Qdc4 Na5 Kd6 Rf6+ Qce6 R8f7 Bg7 Qa4 Kc5 Nb7+ Kc4 Qb5+ Kb3 Qg2 Bf5 Qg4 h3 Kg3 h2 Kh4 h1N Kh5 Nf2 Qg1 Qcd6 Rc4 Nfg4 Rd4 Q8c7 d8R Nh2 Rdf8 Bh3 Rf1 Qed7 R7f6 Qf5 R8f7 Qdd8 Qg4 Qf4 Qgd7 Qg3 Qe7 Bh8 Qf8 Qf4 Qg7 Qg4+ Kh6 Nc4 Rfd6 Qgd7 Bh1 Rcd2 Qge5 Rc2 Rdf4 Qcc6 Be4 Qcc7 Kh5 Qf5 Qf6 Qfc8 Qh6 Bd4 Qg7 Ne5 Rdf6 Qg4+
qNB4n/r3bNr1/2rB3K/2n1QrR1/pR5B/1p1B4/1q3nR1/k1N1NbN1 w - - 0 1 illegal: No proof kernel
1NbBk2r/1bnqnb2/6R1/1Q1pn3/BB2qN2/2Q1b1p1/r3R1B1/B1NB2K1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 e4 g5 c4 f5 b4 a5 h4 a4 b6 g4 e5 f3 e6 f4 b5 a3 e7 d3 c5 d2 c6 a2 b7 Qd7 b6 Nh6 c7 Ra3 Qe2 d1Q Nc3 Na6 b8N Qc2 b7 Rb3 Bd2 Qdf5 Qb5+ Kf7 e8B+ Ke7 Nce2 Ra3 Nc1 Nf7 h6 Qce4 h7 Bh6 h5 Ne5 Bg2 Qd7 Nge2 g3+ Kg1 Bg5 Rb1 a1N h6 Nc2 Rh2 Ncb4 Rb3 Nbc6 Bb4+ Qd6 Rc3 Ra2 Rc4 Be6 c8B Bf7 Bg4 Nc7 Rc3 Kf8 Rc5 Ne7 Rc6 Qd8 Rg6 Qd6 Bc6 Qd7 Bh5 Ke8 Bg4 Rg8 h8Q Rf8 h7 f2+ Kh1 f1B Kg1 f3 Nf4 Be2 Qf6 Bd3 h8B Bb1 Bg7 Rh8 Bh5 Qc4 Bg4 Bf5 Bh5 Qe4 Bg4 Nd3 Qc3 Ne5 Bf6 Nc8 Bd8 f2+ Kh1 f1B Kg1 Ne7 Bd1 Rh6 Qbd3 Rh3 Bca4 Rh8 Qb5 Bg4 Bgf3 Bc4 Re2 Bf5 Bg2 Bh6 Qc6 Ba6 Qb5 Bg4 Nc6 Bf5 b8B Bb7 Ba7 Bg5 Bd4 Bg4 Nb8 Bh6 Nh5 Bd2 Nf4 Qc6 Qcc5 Bgc8 Ba1 Qd7 Qc3 Be3+
kqbNb3/1N2N2r/2Bq2QR/N2p2np/Kb1B4/4n1b1/NQBq3R/2r1N3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 b4 d5 c4 Kd7 Kc2 Kc7 Kb3 Kb7 g4 e5 f4 h5 b6 e4 c5 h3 b5 d3 f6 e3 f7 h2 g5 e2 g6 e1B g7 d2 f5 Ra6 f6 Bd7 c6+ Ka8 b7+ Ka7 c7 Rh7 c8B Bb4 f8N Be8 f7 Ne7 g8N Rd6 Bb2 Rg7 Qc2 d1B Ne6 Bec3 f8N Bd2 Bd3 Bg5 Nf3 Rd7 Ka4 Nf5 Ne1 Ne3 Ne7 Rh7 Nc3 Bh4 Nc5 Bg3 Nfe6 Nc6 b8N Nd4 b6+ Ka8 Nb7 Nf3 Na2 Rc7+ Bd7 Ng5 Nbc6 Bg4 Bd4 Qb8 Ned8 Rc8 Qg2 Bh3 Bc2 Bf5 Kb5 a4 Nca5 a3 Ka4 Rc4 Bc6 Bc8 Rb1 Rc5 Rb2 Rc3 Rf1 h1Q Rf6 Qh2 Rh6 Rc4 Qe4 Qf2 Qg6 Qf6 Bb1 Rc1 Rh2 Qfe5 Nc3 a2 Bc2 a1Q+ Na2 Qbd6 Qd3 Qc3 Qg6 Qd7 Nd6+ Qb7 Qf7 Bc5 Qf6 Kb8 Qg6 Qa8 b7 Qd2 Qe4 Qf4 Qg6 Ka7 Ne4 Qd6 b8Q+ Ka6 Qb2 Bb4 Nc5+ Ka7 Ncb7+ Kb8 Be5 Ka7 Bc3 Qab8 Bd4+ Ka8
N2B1k2/2Q3R1/1QBn3p/b5Br/2Br1qqR/n1RK3N/b3p2b/n2nBB2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 f4 a5 c4 e5 b4 h6 g4 a4 g5 h3 g6 h2 c5 e4 c6 a3 c7 a2 f6 e3 g7 Bd6 f7+ Ke7 f8R Bh3 c8B Nc6 f5 Qd7 b6 Ne5 b5 Nf6 g8B Nc4 b7 Na3 b8B Ne8 b6 Ra5 Kd3 e2 b7 Be5 Qc2 Nd6 Rd8 Rb5 Bf7 Re8 f6+ Kf8 Bg5 Be6 Nc3 Qc7 Rb1 a1B Na4 Bc3 Rd7 Ba5 Nb6 Re7 Qb3 Qc1 Qb4 Qf4 Bc7 Re8 b8Q Qg4 Kd2 d3 Bb7 d4 Nh3 Ba2 Bd8 Bg3 Bbg2 Re4 Bc4 Rc5 f7 Bf4+ Ke1 d2+ Kf2 d3 Rb3 Be5 Na8 d1N+ Ke1 Bg3+ Kd2 Ne3 Rc3 Nec2 Q4b6 Na1 Q8c7 Rf5 Bh4 Rh5 Bhg5 Rd4 Ke3 d2 Bc6 Re4+ Kd3 d1N Ba6 Kg7 f8B+ Kg8 Bfe7 Qf4 Bef6 Kf8 Bc4 Qg4 Rg7 Be5 Rg1 h1Q Bh4 Bh2 Be1 Qf4 R1g4 Qg1 Rh4 Qgg4 Bg5 Rd4+
1B4qB/QQ1B2b1/2R1rpNB/3n4/2N2q1Q/BRq1rp2/K1B1n1r1/3bqk2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 Kd6 d4 a5 Kd2 c5 Kc2 h5 Kb3 f3 g5 h3 Ra3 h4 e5+ Kd7 d6 Ke6 d7 Kd5 g6 Ke4 d5 h2 e6 h3 g7 Rh4 b6 Be7 b7 Bf8 d6 Rf4 e7 Nc6 b8Q Ra6 e8B Rg4 Qa7 Nge7 g8Q Nd5 Qh8 Bg7 Ne2 Rg3 Rg1 h1Q Nf4 Rg2 Nd2+ Ke3 Qc2 Kf2 Qhh7 Be5 Qc4 Ke1 Ng6 a4+ Ka2 Bc3 b4 Nd4 b5 Bb2 Rd3 a3 b6 Ba1 Qb4 c4 b7 c3 b8B c2 Qbb7 Rc6 Bb2 c1Q Rc3 Qh2 Bd3+ Kf2 Rc5 Qf4 Nc4 Qd1 Qh5 Qdc1 Qg4 h2 Rh1 Qce3 Rb1 h1Q Qh3 Qhe1 Qh4+ Kg1 Bf5 Ne2 Bh8 Bc3 Kb3 a2 Be4 a1R Rb2 Rd1 Ka2 Qd4 Rb3 Rd3 Bf5 Re3 Be4 Rc7 Rc6 Kf1 Bf5 Qg7 Bd3 Qdf6 d8B Rce7 d7 Qg8 Ba5 Bd4 d8B Bf5 Bb4 R7e6 Ba3 Qfg7 Bb1 Bc2 Bg5 Bd1 Bh6 Bc3 Bd7 Qgd4 Nd6 Qdd2+ Bc2 Bg7 Nc4 f6 Bf8 Qa5+ Ba3 Qac3
r2R1n1q/3QNR2/nk1qNpq1/4R3/Bp1rRB1N/2b1BbrK/1R2r3/6B1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 b5 a4 c5 e4 Kc7 d4 g5 h4 b3 a5 b4 h6 g4 e5 c4 d6+ Kb7 d5 c3 h7 b2 a6+ Ka7 e6 c2 e7 g3 e8R Bf5 d7 Ne7 h5 Rg8 h8B Ng6 h6 Ne7 h7 Kb6 a7 Kb7 d6 Nbc6 Be3 c1R Be5 Bg4 h8B Bh6 Rh5 Nb8 Nf3 Rc4 Nh4 Ng6 Ra2 Rd4 Bb5 Kb6 Nc3 b1R Rb2 Na6 Ba4 Bf3+ Kh3 g2 Rf5 Qc7 d8N g1Q d7 Qd6 Ne6 Nf8 d8R Bg7 Re7 Qg6 Nd5+ Ka5 Qd3 Re1 Ree8 Bf6 Ne7 Re2 Bg7 Kb6 Qd2 Rb8 a8R Rc8 Ra7 Ra8 Bh6 Bh8 Bf6 Bg7 Bfg5 Be5 Rad7 f6 Bg1 Bd5 Bd1 f3 B5e3 f2 Ba4 Bf3 Rf4 Rg7 Re4 Rg8 Bhf4 f1Q+ Ng2 Qd1 Nh4 Qa1 Qc2 Qb1 Qc8 Qg7 Ra7 Qh8 Qd7 Rc8 Nd5+ Ka5 Qg7 Rd1 Nc5 Qb6 Rc4 Bc3 Re5 Qd6 Ne6 Ra8 Rd4 Qbh7 Rde4 Rd4 Qb7 Qh5 Qc8 Rg4 Rf7 Qg6 Ne7+ Kb6 Qd7 Rg3+
1b1n1Q2/4qqBk/b1p1n3/1NQB1n1B/QrQ1p1n1/2NQ1r1b/Q7/R5KR w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg6 Kf2 a5 b4 h5 d4 e5 g5 c6 d6 a4 d5 a3 d7 a2 d6 h3 f5+ Kh7 f6 h2 f7 h4 b6 h3 b7 Qf6+ Nf3 Ra3 d8Q Nh6 d7 Na6 b8Q Nc5 b5 Ba6 b6 Bd6 f8Q Qf7 b7 Ne6 Qa7 Nf5 Nd4 Bb8 Qa5 Nd8 Be2 e3+ Kf1 Rd3 Bh5 e2+ Kf2 e1N Qda4 e4 Q5c5 Ng2 Bb2 Nf4 Nb5 Nfe6 Bg7 Rd4 N1c3 Rb4 Qc4 Rg8 Qfc5 Rf8 Rhb1 h1B Kg1 Bg2 Rd1 Bc7 b8Q Bg3 Qbd6 Be5 Qdd3 h2+ Kf2 h1N+ Kg1 Bh3 g6+ Kg8 Rdc1 Bb8 Re1 Nf2 Red1 Nb7 d8Q Ng4 Qd2 Nh4 Qcf2 Qf5 Q8d3 Rb2 Bf6 Rd8 g7 Ne3 Kh1 Kh7 Rab1 a1Q Qad4 Qa2 Ra1 Qa3 Be5 Rb1 Qda2 Qe7 Qdc5 Rf8 Kh2 Rf6 Rh1 Rb4 Kg1 Ng4 Qff1 Nbd8 Qff2 Qb7 Qf8 Qg6 Q2c5 Rf3 Bf6 Qe7 Bd4 Kh6 Be5 Nf5 g8B+ Neg7 Be6 Kh7 Bd5 Nge6 Bg7 Qgf7
k2B2b1/1b3Rb1/2pnR1N1/2q1Np1R/2b5/1Q2nNNR/1rB3R1/rB3rqK w - - 0 1 illegal: No possible last move, all moves rejected
1b2rR1R/1RN1k3/1p1Rb2q/1bq4q/3rQN2/1n2npbB/4RQ2/K1B1R2B w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 g5 d4 f5 Kd2 c5 Kc2 b6 Kb2 g4 e4 b3 a4 f3 e5 g3 e6 c4 d6 f2 d7+ Ke7 a5 g2 a6 f4 d5 Qc7 d8R Bg7+ Nc3 Qd7 h6 Qe8 a7 Qb5 h5 Qa4 h7 Nd7 h6 Be5 Rh2 Qc6 Qe1 Bb8 Nge2 g1Q Rf8 Ngf6 Nb5 Ng4 Nc7 Ne3 Bh3 f1B Qf2 c3+ Kb1 Rg8 h8R b2 h7 Rg4 Rhg8 Qh1 h8R c2+ Ka2 Nc5 Rg7+ Kd6 e7 Be6 e8Q Nb3 Qg6 Qc5 Qe4 Qf3 Ng3 Bb5 Ne2 Rh4 Re7 Qh5 Reh7 Qf7 Rb1 Ke7 d6+ Kf6 d7 Ke7 d8R Rg4 Bd2 c1B Rd6 Rh4 Bc3 Bd2 Re1 Qg7 Bb4 Bc3 Ba5 Be5 Bd2 Rg4 Rd3 Bd6 Bc1 Qh5 Rd4 Be5 Rd6 b1Q+ Ka3 Qd3 Ka2 Qd5 Rg2 Qc5 Kb1 Nd4 Ka1 Nb3+ Ka2 Be8 Qc4 Nd1 Nb5 Bc7 Qg1 Ne3 Qd5 Rd8 a8B Bb8 Qd3 Rc8 Rh2 Rd8 Bh1 f3 Qg2 Rc4 Qe4 Bg3 Nf4 Rd4 Qg1 Bd7 Rhe2 Re8 Qf2 Kd8 Kb2 Qgh6 Kb1 Kc8 Re7 Bc6 Rb7 Bcd7 Nc7 Kd8 Kb2 Ke7 Ka2 Bb5 Kb2 Na5 Ka1 Nb3+
1R1N3B/bQn1Nq2/1pB1QQ1q/1r1b1N1q/1n4p1/1k1b4/1r3Q1R/Q4bKQ w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kd6 d4 f5 a4 c5 h4 g5 e5+ Kd7 h6 f3 h5 g4 h7 f4 a5 c4 a6 b3 e6+ Kd6 e7 b6 e8Q c3 h6 b2 a7 c2 Rh2 Bd7 Bg2 Be7 Qd2 Qc7 Nc3 b1B Bb2 c1Q Nge2 Bc6 Ng3 Bd3 Qc2 Qd2+ Kg1 Nf6 Ra5 Qe3+ Qf2 Na6 Qf7 Rad8 a8Q Ne8 Qb7 Nb4 Ra8 Bh4 Qg8 Qf7 Rb8 Nc7 Bh1 Qh5 Nf5+ Kd7 d6 Bd5 Qg6 Bg3 Bg2 Rhe8 h8Q Re5 h7 Rf8 Bh1 Rf7 Qgg8 Ke6 d7 Qd2 d8Q Re2 Rh3 Qe3 Ba1 Rb2 Rh2 Qd2 Qhg7 Qe3 h8Q Qd2 Ne7 Qe3 Qge8 Rf5 Nd1 Qd2 Ne3 Rg5 Qe2 Re5 N3f5 f2+ Kf1 Qe3 Bf3 Qc1+ Kg2 f1B+ Kg1 Qd2 Qf2 Qe3 Be4 f3 Qhh7 Qeh6 Qhh8 Ba2 Bc6 Rb5 Qgh7 Q6g6 Qh6 Bd5 Qc1 Qgh6 Qh7 B5c4 d5+ Ke5 d6 Bd5 d7 Ke4 Ne3+ Kd4 Qb1 Kc3 N3f5 Bf4 Qeg6 Kc4 Qe6 Kb3 Qbe1 Re2 Bh8 Rb2 Qf8 Bd6 d8N Bf4 Qg2 Bg3 Qa1 f2+ Kh1 Be5 Qff6 Q5g5 Ra8 Qh3 Ng7 Nca6 Qfh6 Bb8 Qhe4 Bfe2 Qg3 Ba7 Rb8 f1Q+ Qg1 Qf8 Ngf5 Qf7 Qf2 Nc7 Qhf6 Qgh6 Kg1 Q3h5 Qh1 Bf1
7b/1Q1N2Qp/1n1N3b/2K1BB2/nR1r2p1/1N3N1N/3nkq1n/Nr1q1RRb w - - 0 1 illegal: No proof kernel
2Rr1b1r/2Q3pQ/2n5/3NB1r1/R1N1b1pR/1Bqr1RR1/Rn4NK/nk1q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 h4 Ke5 e4 Kd4 b4 c5 b6 f5 b5 a5 h5 f3+ Kh2 c4 d6 a4 h6 f2 e5 f4 h7 a3 d7 a2 b7 c3 b6 f3 e6 c2 e7 Ra6 e8N Ra4 Nh3 Qc7+ Nd6 Ra3 d8Q Qc6 Nc3 Qd5 Qc7 Ra4 Nc4 Qc5 Nf4 Bd7 Rg1 Ra6 Ng2 Ra4 Nd5 Na6 b8R Bc6 b7 Ra3 Ra8 Rd3 b8R Ne7 Rc8 Nb4 Ra4 Ba8 Ba3 c1Q Qc2 Nec6 Bb2+ Ke4 Be2 f1R Bd1 f2 Be5 Qd6 Qb1 Qc3 Bb3 Rd1 Qc2 f1R Qb1 Rg8 h8R Rf5 Rh4 Rg5 Rf1 Rh8 Rf3 Rf1 Rg3 Rf7 Qc2 Rd7 Rf1 a1N Rff3 Rd8 Qb1 Qd7 Qh1 Re3 d4 Nd3 Ra2 Bb7 Rca8 Nb2 R8a4 Kd3 Qb1+ Ke2 Qh7 Qd6 Ne7 Rd3 d5 Qd7 d6 Ba8 Nd5 Bb7 Na5 Kd2 Nc4+ Kc1 Qf5 Qe8 d7 Kb1 Qh7 Qe7 Qg6 Qd6 Qh7 Re8 d8R Ba8 Rc8 Rd8 Nf6 Qd5 Rf2 Qf3 Nd5 Qd1 Rff3 Nd4 Ne7 Be4 Nd5 Nc6
4qbq1/nBR1Bbp1/4N2Q/1KB1BB2/pn3R2/3Bbb1r/2q5/1k1N1RQr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 e4+ Kg6 b4 a5 h4 f5 e6 a4 h5+ Kf6 b6 Ke5 h6 d5+ Kb5 d3 c4 Kd4 c5 d2 e5 g3 b7 f4 e7 f3 e8R g2 e6 f2 e7 Be6 c6 Bf7 h7 Bg6 c7 Bf7 c8B Ke4 Nh3 g1B Nc3+ Kd4 Bd3 f1B Nf4 Qc7 Ba3 Qd8 Bf5 Nf6 Rh4 Nc6 b8B Bg2 Bd6 Be3 Qg1 Bf3 Rf1 d1Q Rg4 Qd2 Nd1 Qa2 Rh4 Qd7 Rc8 Qe8 Rc7 Rb8+ Ka6 Qc4+ b5 Qb3 b6 Qa2 Nf2 Kc3 b7 d4 Ne6 Nd5 Kb5 Nb4 Rf4 Rc8 b8B Rd8 Bc2 d3 Bc5 d2 Bcd3 Kb3 Nd1 Qc2 Rd7 Ka2 Be5 Kb1 Rc7 Rd6 Nd4 Rh6 Ne6 Rg8 h8Q Rh3 Qh7 Rh8 Qh6 Rh1 Qhg6 R8h3 Qh6 Qd7 e8B Qc8 Nf2+ d1Q Bd7 Qd8 Bc8 Qe1 Nd1 Qe8 Bb7 Qh4 Qf6 Qh7 Qh6 Qg8 Be7 Nd5 Bad6 Ndb4 Bc5 Na7+
B3R1q1/1bRBp1Nq/Q1BnKbr1/3B1p2/2Qq1k2/r2n4/1N3b2/B1Rq2B1 w - - 0 1 illegal: No proof kernel
1rRB1b2/1R1pNbqp/N3B3/1qN5/q3N3/N3R3/b1QR1r1q/B1Kn1n1k w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 g4 a5 b4 e5 c4 d3 c5 h3 c6 h2 g5+ Ke7 c7 Kd6 b6 Kd5 b7 Ke4 f6 a4 b5 a3 f7 a2 g6 Na6 b8N Nh6 b6 Bb7 c8R Qc7 f5 Ng4 g7 Nf2 g8N Nc5 f6 Bd5 Ne2 Kf3 b7 e4 Bb2 e3+ Kc1 Nce4+ Nec3+ e2 Bh3 Ng3 Na6 Nf1 Na3 Rb8 Be6 Kg2 Qc2 Nd1 Ne4 Bc4 Rb1 a1Q Ne7 Ba2 Nac5 Qc6 Be5 Qa4 Bc7 Rg8 Bd8 Qc3 Rb2 Rg4 Rb6 Rf4 Rb2 Rf2 Rc7 Bg7 f8B e1Q f7 Qe2 Rc8 Qh5 Na6 Qhb5 Rb3 Be5 Bg7 Bd6 f8N Qce5 Bh8 Qg3 Ba1 Qg7 Bg4 Bb4 Ne6 Bc5 Rb2 Bd6 Ne6c5 Bf7 Ng6 Bf8 Ne7 Ba2 Bf5 Bf7 Be6 d2+ Kb1 Nfe3 Re1 h1Q Re2 Nf1 Re1 Qh2 Re3 Ra8 b8R Kh1 Rb7 Rb8 Rf3 Nde3 Rh3 d1B Kc1 Bg4 Ra2 Nd1 Re3 Bh3 Qb1 Bg4 Rd2 Be2 Qb2 Bc4 Qc2 Ba2
1b1r2R1/3BR1N1/2RQ3N/b1p4n/2KNb1bk/2B1pR2/r1QR2n1/R2r1q1r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 Kg6 g4 Kg5 f4+ Kf6 d4 e5 d6 h5 g5+ Kg6 d7 a5 f5+ Kg7 d5 c5 f6+ Kg6 d6 e3 Kd3 a4 f7 e4+ Kc4 a3 b6 e2 b5 e1B b7 a2 b6 h3 Na3 h2 Nb5 e3 Nf3 h4 Nbd4 Kh5 g6 h3 g7 Bh4 Nf5 Rh7 Bb2 Nc6 b8Q Be1 b7 Qf6 d8N Nb4 d7 Nc2 Bc3 Bd6 f8R Rh8 Ne6 Qf7 d8R Nf6 Rg1 h1B g8R h2 N3d4+ Bf3 Be2 h1R Nh6 Kh4 R1g7 Be4 Bg4 Nh5 Qc7 Bd2 b8R Ne1 Qc2 Ng2 Rb6 Rd1 Qc6 Bb8 Qd6 Qf3 Rc6 Qf1+ Be2 Ra6 Re7 Be1 Ng7 Bg4 Rf3 Ra7 Rb1 a1R Rc1 R1a2 Ra1 Bd2 Bb2 Ba5 Bc3 Rc7 Rdd7 Rc8 Bd3 Rd8 Be2 Qf2 Bd3 Bg6 Bf5 Qf1+ Ne2 Bh7 Qg3+ Kg5 Rd2 Nf6 Bd7 Bf5 Qd6 Be4 Nhf5 Rh1 Nh6 Kh4 Rd4 Qe1 Rd2 Nh5 Nd4 Qf1+
N3b2k/1R1n2r1/2BQ1r1n/1npq1Nr1/1B1N3B/R1p1b3/5rNR/1BK1N1n1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 b4 Kf7 d4 Kg7 Kd2 h5 g4 c5 f4 e5 b6 a5 d5 h3 g5 h2 d6 h4 b5 h3 b7 a4 b6 a3 d7 e4 f6+ Kh7 f5 a2 g6+ Kh6 g7 Kh7 f7 Ne7 g8B+ Kg7 f6+ Kg6 Bg2 Nec6 Ne2 Rh6 Na3 Na7 Ng3 Nb5 Nc2 Ra7 Ba3 c3+ Kc1 e3 Bc6 e2 Nf5 e1N Bb4 Nf3 Ne1 Ng1 Qd6 Bg7 f8R Rh5 Be6 Kh7 f7 Rg5 Re8 Bh8 Re7 Bd4 f8N+ Kh8 Bb3 Ra6 Bc2 Rg7 Bb1 Be3+ Kc2 Rg5 Ne6 Qg8 d8B Nd7 Nf4 Qd5 b8N Ra7 Ba8 Bb7 Rf7 Bc6 b7 Ne5 Ng7 Rg6 Nge6 Be8 Bh4 Rg3 Na6 Rg5 b8N Rb7 Rd7 Rc7 Rd8 Rcg7 Nc6 Nd7 Nac7 Ne2 Rf1 h1N Ne7 h2 Rf2 Nhg3 Bc6 h1R Rb8 Rh2 Rb7 Nf5 Na8 Nh6 Nd4 Ng1 Rd2 Rf2 Kd1 Rf3 Rh2 Rf2 Nfg2 Rf6 Be4 Bf7 Nf5 Be8 Rb1 a1R Bc2 Ra6 Rb3 Ra3 Bb1 Ra2 Ra3 Rd2+ Kc1 Rf2+
q1nB4/BB1Nn1Q1/B2Nb2Q/p2n1rB1/3N3B/p3b2R/r2k1K2/1rRrn3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 f4 Kf7 d4 Kf6 g4 c5 b4 a5 d6 h5 b5 e5 b6 a3 b7 e4 d7 c4 d5 c3 d6 e3 Qd2 e2 Rh3 c2 Kf2 e1N Nc3 Ne7 Nf3 Bh6 Ba6 Nbc6 b8B Na7 Nd4 Qe8 d8B Be6 d7 Nc8 Ba7 Bg5 Rd3 h3 Ncb5 h4 Nd6 h2 Rh3 h1R Qc3 Rh5 Bd2 Qf8 Rc1 Rb8 Be3 Rb2 Qc6 Kg7 f6+ Kg6 f7 Ra2 f5+ Kh6 f6 Bf4 Bb7 Rf5 g5+ Kh5 g6 Kg4 g7 Qh8 Rf3 h3 g8B h2 f8Q Rg1 f7 h1R Rh3 Kg5 Rb1 c1N+ Bd2 Ne2 Rc1 Nc3 Qc7 Kg4 Qh6 Ncd5 f8N Ng2 Bh7 Rd1 Qc3 Ne1 Qa1 Nc6 Bh4 N6e7 d8B Rg1 Nd7 Qe8 Nc5 Qc6 Ba6 Qa8 Nd7 Re5 Bb7 Bg5 Rf3 Nc2 Bf4 Rde1 Bd3 Rf5 Rb1 Rc1 Ne2 Rgd1 Rh3 Ne1 Rb6 Rb1 Bda6 Bf6 Rc6 Be5 Ne8 Bd6 Rc1 Be5 Rf3 Bc7 Bfg5 Bf4 Rh3 Bg3+ Kg1 Kf3 Qag7 Ke4 Nd4 Bf4 Rh2 Ke3 Rh3+ Kd2 Nd6 Rf6 Kf1 Rf5 Kf2 Be3+
4BnRn/k4B1q/p3bp2/1R2BnK1/1n1NrQN1/3Rr1B1/r3BrN1/N3b3 w - - 0 1 illegal: No possible last move, all moves rejected
R3NB1b/3b1q2/1N1rr1B1/p1r3RR/p2bQp1n/7R/1k2BN1K/3nn1RN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 bxa4 c4 d5 cxd5 exf4 Kf2 Ke7 Kg2 Kd6 b4 Ke5 e4 Kd4 h4 g5 b5 c5 h6 f5 h5 a5 d6 c4 b6 g4 b7 c3 e5 c2 h7 g3 h6 Nd7 b8N Ra6 e6 Qg5 e7 Ngf6 e8B Ra8 Rh3 Rg8 h8N Ng4 h7 Bb7+ Qf3 Nde5 d7 Qg6 Ba3 c1N Nf7 Bc6 h8R Nf2 R8h5 Bg7 Bf8 Bh8 Nd6 Ncd3 d8R Ra6 Nd7 Rg7 Rc8 Re7 Ra8 Re6 Bf7 Qh7 Ne8 Ng6 Ne2+ Kc4 Nbc3 Kb3 Rc1 Kb2 Qe4 f3+ Kg1 g2 Ng3 f4 Nd1+ Ka2 Nh1 Qg7 Kh2 Nh4 Bg6 Qf7 Rcc5 Bb5 Rcg5 Rac6 Be2 Rc5 Nb6 Bc6 Rhg3 Ka1 R3g4 Ne1 d4 Bb5 d5 Bc6 Nb2 Nd1 d6 Bb5 d7 g1B+ Kh3 Bf2 d8R Ka2 Rd3 Bd7 Kh2 Be3 Rg1 f2 Rc3 Ka1 Bb5 Ka2 Nd3 Ka1 Ne5 Ka2 Ng4 Kb2 Qg2 Rd6 Ba6 Bed4 Rh3 Nd3 Qc6 f1R Ngf2 Re1 Qf3 Re7 Qe4 Ne1 Be2 Ree6
2Q1R2N/2NNR1Kr/1qb3BR/B1b2p1R/1n2N3/N1pp4/n3q1br/2B1nk2 w - - 0 1 illegal: No possible last move
1N4bN/1Q1RrNkB/1B6/nRn1qpp1/2pB4/1BR1r1Nb/2Kb4/2q1N2r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 h4 Kf7 e4 c5 b4 g5 b6 g3 b7 g2 h5 a4 d6 a3 e5 a2 b5 f3 e6+ Kf6 d5 f2 h6 Ra6 b6 Rh7 e7 Qe8 d7 Rh8 d8N Ra3 h7 Qb5 e8B Qd7 d6 Qc6 d7 Bd6 Qf3 Ra5 Nf7 Qe4 d8B+ Kg7 Na3 Nf6 Bc4 f1B Rh3 Bh2 Ne2 g1Q Nc2 Qe5 Ng3 Nc6 b8R Ra8 b7 Nd7 Bb6 Ra3 Bb2 Re3 Bb3 c4 B2d4 Nc5 Rd1 a1R Ne1 Na5 Kc2 Be6 Rd3 Rg8 h8N Rb1 Rc3 Ra1 Rh6 Bh3 Qh1 Bd5 Rd6 Rd1 Rd7 Rb1 Ne2 Bf4 Ng3 Rd1 Rbd8 Be6 b8N Rf8 Qb7 Qh1 Nd6+ Rf7 Rc8 Re7 Bg6 Bg8 Bh7 Rf3 Rcd8 Bd2 Ndf7 Re3 Rd5 Qf1 R8d7 Qf4 Nf3 Rh1 Ne1 Nd3 Rb5 Nc5 Ne4 Qf1 Ng3 Qg1 Nf3 Qa1 Ne1 Qc1#
R2q1r2/4Nq1r/1q1R4/b2pn1Qp/4bR2/BpB1NB1k/3KR1N1/1NR1r1n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 g4 e5 f4 d5 a4 b5 c5 h5 g6+ Kf6 a5 e4 c6 e3 g7 d3 c7 b3 g5+ Kf7 g6+ Kf6 a6 b2 a7 e2 Bd2 b4 Bg2 b3 Bf3 Bb4 Rh2 Ba6 c8R Qc7 Bc3+ Qe5 Kd2 e1R Re2 Bc4 Nh3 Nc6 Rd8 Rh6 Qc1 Nge7 g8R Ba5 g7 Rb8 a8N Nd4 Nb6 Rh7 Rd6+ Qe6 Rc8 Nc6 Rc7 Bb5 Nc4 Ne5 Ne3 Rf8 Rc8 Be8 Ra8 Bg6 g8N+ Kg7 Ra2 Qc8 Ra1 Qd8 Ne7 Kh6 f6 Be4 f5 Rfh8 Rh2 Ne2 Nf4 Kg5 f7 Ng1 f6 Rf8 Re2 Kh4 Nfg2+ Kg3 Nh4 Kh3 Nhg2 Rfh8 f8B Rg8 Na3 b1Q f7 Rgh8 Bg7 Rg8 f8R Rgh8 Rf4 Rf8 Nec2 Qb2 Nb1 Qa3 Bh6 Qc5 Nce3 Qcb6 Bg7 Ng6 Bd4 Ne5 Bc5 Qb5 Rf7 Qbe8 Na3 Kh2 N3f5 Qa4 Ke3 Qae8 Qd2 Bb6 Rc1 Ba5 Nb1 Kh3 Rff6 Qf7 Ba3 Bb4 Kf2 Ba5 Qg5 Rf1+ Ke3 d2 Ree1 d1Q Re2 Qg7 Rf7 Qe1 Rff6 Qf2+ Kd2 Qfb6 Nfe3 Qf7 Rf4 Re1
B2b2NB/1rkB1rNN/2bn2q1/R1p3Q1/2pqp2n/1RBR2nK/4B2b/5N2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 d4 Kd7 b4 a5 g4 e5 f4 c5 Kf2 h5 Kg2 a4 d5 a3 b6 e3 d6 h4 b5 e2 g6 e1B f5 a2 g5 e4 b7 Qc7 b6 Qd8 g7 Bd2 f6 Qc7 g6 Bf4 f7 Be5 Nh3 Nh6 g8B Kd8 d7 Na6 b8R Bfd6 f8B Nf7 g7 Bg3 b7 Ng5 Bb2 Rh6 Qg4 Bde5 Be2 Rf6 Nd2 Nh7 Qg5 Bef4 Rhd1 Qc6 Be6 Ra7 g8B Kc7 d8N Bh2 Bg7 Nf8 Nf1 Bd7 Bc3 Ng6 Rd3 Rf7 Bh8 Bd6 B6g4 Be7 Bf5 Qf6 Bfg4 Bc6 Bd7 Rf8 Bd5 Rf7 Rad1 a1Q Ne6+ Kd6 Rc1 Nc7 Ng7 Nb5 Rc2 Qd4 Ra2 Kc7 Ra5 Qa3 Qg4 Qb3 Ng5 Nd6 Nh7 Qb6 Kh3 Bd8 Qg5 Qa6 Ra8 Qb6 b8N Rb7 Rb5 Qa6 Rb3 Qb6 Ra5 Qa6 B7e6 Qb6 Nd7 Qa6 Kg4 h3 Ndf6 Nh4 Bd7 Bg3 Qh6 h2 Ng8 h1N Kh3 Bh2 Qg5 Ng3 Rab5 Qa2 Ra5 Qd2 Qe5 Qh6 Qg5 Ba4 B5c6 Qg6 Bd5 Rb4 Bb7 Bc6 Ba8 Rb7
RN1QrB1k/Bq1R1KN1/5q1p/1p2Q3/Q1b1B1rb/1p3Q2/nn3rQ1/1qQ5 w - - 0 1 illegal: No possible last move
2R5/1Kb2nq1/BNpn2Q1/4r1N1/3p1N2/QRbpk3/q2nN2N/NbB2rR1 w - - 0 1 illegal: No proof kernel
Q1q2R1N/KQ1b1p2/4r1b1/1n5N/p3Br2/1R1N2qN/kN2pb1N/B1Qn3r w - - 0 1 illegal: No proof kernel
nR1NrRBn/3p1Qp1/1RQ2q1q/2p3B1/1N4R1/R3b1r1/3qQrR1/3bK2k w - - 0 1 illegal: No proof kernel
2q1BK2/1pN1BQ1n/B1N5/3r4/nB2N1Rp/3bb1pk/n5N1/bBRrR1q1 w - - 0 1 illegal: No proof kernel
2n1BQN1/Bp4rk/rr3R2/q1b1pR1p/R3N2n/2K3B1/1B1n1N2/1R2q1Bb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 Kg7 f4 e5 a4 c5 g4 h5 g5 b3 a5 h3 f6+ Kg6 a6 c4 a7 b2 d6 h2 f5+ Kh7 f7 Bg7 f8B Nf6 d7 Qa5+ Nc3 b1Q d8B Nc6 g6+ Kg8 d5 Qba2+ Bb2 Q2a3 d6 Nb8 d7 Na6 Nh3 Q3b4 Ra4 Nc5 Qf3 Rh7 Nf2 Ne8 f6 Nd6 Bb6 Nb3+ Kc2 Rh6 d8B Bf5+ Nce4 c3 Bb5 Nc8 Rb1 h1N Bfc5 Nd2 Be8 Bf8 g7 Ng3 f7+ Kh7 g8N Rc6 Bd4 Bc5 f8R Bh3 Be3 Bg2 Bh4 Bh1 Rf6 Nf5 Bg3 Nh4 Kd3 c2 Rf5 Rb8 a8R c1R Ra6 Ra8 Ba7 Rg1 Bed4 Rb6 Kc2 Rb5 Raf6 Rb6 Qa3 Qbb5 Qb4 Qf1 Kc3 Qe2 Nd3 Rg2 Bg1 Qd1 Ndf2 Qe1 B3h2 Rg7 Bg3 Bf8 Bb8 Raa6 Ba7 Qd5 Qe7 Qb5 Qf7 Bc5 Qf8 Qa5+
1R2B3/N2B2b1/4b1rB/3pp3/1Nb1N2b/pnBRBbqQ/2K1n1N1/R1r2k2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 c4 Ke5 b4 Kf4 c5 a5 c6 d5 g6 h5 g5 d3 b6 e6 b7 a4 g7 h4 c7 h3 g6 a3 b5 h2 b6 Bb4+ Nc3 Qe8 Nh3+ Kf5 f4 Qb5 Qf3 Nd7 b8N Ne7 g8R Rh6 g7 Nc5 b7 Nc6 Na6 Rg6 b8B e3+ Kd1 d2 Ne4 e2+ Kc2 Ba5 Nb4 e1B Qe3 Kg4 f5 Qb7 f6 Nb3 f7 Bh4 f8B e5 Bb2 Be6 c8N Bad8 Na7 Bdf6 Bb5 Qa6 Rhe1 h1B Nf4 Bf3 Ng2 Kh3 Red1 Qb6 Qh6 Qf2 Bc3 Qg3 Bbd6 Kh2 Bc5 Rc8 Be3 Be2 Rh8 Bc4 g8B Bg7 Bf7 Rc7 Be8 Ncd4+ Kb1 Ne2 Kc2 Rf7 Bbd7 Rf1 Bg5 Kg1 Be3+ Qf2 Qh5 Re1 Qf5 Kf1 Qh3 Qg3 Bf7 Bgf6 Bfh6 Bg7 Rb8 Qf2 Bfe8 Qg3 Rdc1 d1B+ Kb1 Ba6 Rc2 Bc4 Rd2 Nf4 Rd4 Bf3+ Kc2 Ne2 Rd3 Rc1+
R5r1/1N1K1Nn1/RR5p/nRbB1rB1/B1Q1pr1r/1np2R2/8/QRq1k2b w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 c6 g4 e6 b4 e3 b6 e2 b7 e1N b5 a4 g5 a3 g6 h6 b6 a2 g7 h3 f5 h2 f6 Ra6 f7 Rh7 Bb5 Ra8 Nf3 Ne7 g8B Qe8 Nc3 Qd8 Ne5 Rh8 Na4 Qe8 Nc5 Nd3 Ba4 Ra5 Qc2 Bd7 Qc4 Nf5+ Ke4 Be7 f8R Ng7 Rf3 Qc8 Re1 h1R Rb1 Na6 b8R a1R b7 Ndb4 d4 Rh4+ Bf4 Bf8 Ra8 Ra2 b8R Rf2 Rb5 Be7 Bf7 Rg8 Ra1 Qc7 Reb1 Bc8 Ra2 Bb7 Rb8 Ba8 R8b6 Bf8 Ned3+ e5 Nb7+ Ke7 d6+ Kf6 d5 c5 d7+ Nc6 d8Q+ Be7 Qd4 c4 d6 Nc5+ Kd5 Kf5 d7 Kg4 Qc8 Nb3 Qa1 Bc5 Bg5 c3 d8R+ Qd7+ Nd6 Qf5 Qc7 Qf4 Nb7 Qc1 Ra3 Re2 Rd6 Re4 Ra6 Rf4 Re6 Bb6 Kd6 Bd4 Kd7 Bc5 Rf2 Kg3 Rf3+ Kg2 Rf6 Kg1 Bd5 Kg2 Nb2 Kg1 Nc4 Kg2 Ncd6 Kg1 Re3 Kf1 Rf3+ Ke2 Nf7 Ke1 Rb4 Rb5 Ra2 Nca5 Rfb6 Be3 Qc4 Bc5 Rd6 Rb6 Rg6 Rbf6 Rb5 R6f5 Rgb6 Rhg4 Rd3 Nc6 Nbd6 Nba5 Bg2 Ne7 Bd1 Nec6 Ra7 Nb3 R2a6 Nd2 Ba4 Na5 Rh3 Bf3 Ra8 Ndb3 Nb7 Rh4 Rg3 Bg4 Bc6 e4 Bd5 Bf3 Rh3 Bg2 Rf3 Bh1
2RBN2b/6N1/2BNrpk1/1n1R2N1/3n1p1Q/2K1B3/B1p4r/n1rbBRnq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 c5 Kd2 a5 g4 h3 e4 a4 b4 c4 g5 h2 d6 h6 d7+ Ke7 b6 a3 b7 a2 b5 Rh7 g6 Kf6 g7 Kg5 b6 Be7 e5 Ra3 e6 Rc3 d5 Qe8 d8B Nf6 g8B Re3 d6 Nc6 b8B Nd5 d7 Bf6 e7 Nd4 b7 Nc7 Nh3+ Kg6 Nc3 Bh8 Qe1 Re6 Qh4 Ncb5 Ne4 c3+ Kd3 c2 Nd6 Qf8 e8N f6 Be3 h5 Ng5 Qg7 Ba7 Qh6 Rd1 a1N b8R Ba6 Rg1 h1N Rc8 Ng3 Bg2 Nge2 Rgf1 Ng1 Bc6 Bb7 Bc5 Ba8 Bb4 Bb7 Qf2 h4 Be1 h3 Qh4 h2 Rd2 h1R Kc4 Na3+ Kc3 Ba6 Rd1 Be2 Rd2 Bd1 Rd3 Ree7 Ba2 Re6 Rd2 Nf5 Rd5 Nd4 Ba5 Rh2 d8N Rb7 Bc7 Rb1 Ba5 Rc1 Bb6 Re4 Nde6 Qh7 N6g7 Re6 Bd8 Nab5+ Kc4 Qh5 Kb4 Qf3 Kc4 Qh1 Kb4 Na7 Kc3 Nab5+
1N5r/k1Bpp3/1q2N1BN/nb3bN1/K2B2RQ/p3nN2/5b2/NbQ2rnR w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 b4 a5 f4 d3 Kc3 d2 Kb3 h3 c4 h2 g4 h4 g5 h3 f6 Na6 f5 Nc7 b6 Rh6 g6 Rh8 b7 Ra7 b8N Bb7 g7 Bf3 b5 Be4 b6 Ne6 b7 Ra8 c5 Qb6+ Ka4 Kd8 c6 Kc7 f7 Nf4 f6 Nh6 g8N Ng4 Bb2 Bf5 Bd3 Ne2 Nh6 Ne5 Nf3 Bg7 f8N Ng1 f7 Nc4 Na3 Bd4 Qc1 d1N Nh7 Bf2 f8N Nde3 Bd4 Ra7 Rb1 Ra6 Rb4 Ra8 Kb3 Ra7 Nhg5 a4+ Ka2 Ra8 Nc2 a3 Na1 Ra4 Bc2 Na5 Rc4 Rb4 Bd3 Rb1 Nfe6+ Kd6 c7 Kd5 Qb2 Rf1 c8Q Kd6 Rb4 Kd5 Qe8 Kd6 Qh5 Kd5 Na6 Kc6 b8B Kb7 Bc7 Ka7 Nb8 Ne2 Rg1 h1B Qc1 h2 Qh4 Bg2 Rh1 Ng1 Ra4 Bgh3 Bb1 Bd3 Rb4 Bb5 Bg6 Bf5 Rc4 Nc6 Kb3 Na5+ Kb4 Nh3 Rg1 h1B Rg4 Ng1 Rc6 Bbd3+ Ka4 Bb1 Rc2 Be1 Rcg2 Bf2 Rh2 Bg2 Rh1 Bh3 Rg3 Bfd3 Rg2 Bhf5 Rg4 Bb5+
2rN4/p1BqR1N1/BnbnQ3/2N2NK1/1N1b4/1Br3Rr/1b1k1pp1/1r4NQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 h4 Ke5 d4+ Ke4 b6 c5 b7 f5 b5 g5 b6 f3 Kg3 c4 d6 c3 d5 c2 h5 f2 h6 Qf6 d7 Na6 d8N Qg6 b8Q Rh7 d6 Qe8 d7 Qe5+ Bf4 c1B b7 Ne7 Ne6 Qa5 d8N Ng8 Rh3 Qd2 Bc7 Ke3 Nc3 Nb4 Na2 Bb2 Ng7 Nd5 Nb4 Bd7 Qc8 Bc5 b8N Bc6 Nd7 Bcd4 Nc5 Nge7 Qc1 Rh8 h7 Nb6 Qb1 Qd1 Qe6+ Kd2 e4 Rc8 Ba6 f1R e5 Re1 Qe4 Re3+ Qf3 Qa4 Re1 Rc3 Re3 Qb5 Qh1 f4+ Kf2 f3 Kg3 Rf8 h8N f2 Nhf7 Rh8 Nd6 Rh5 Ndf5 Rh7 Nd7 Qd5 Nc5 Qd7 Kh2 Rh8 Rh7 g3+ Kh3 g4+ Kh4 g2 Rg3 Rf8 Kg5 Rh8 Rh6 Rh7 Rf6 Rh3 Rf7 Ned5 Re7 Ne3 Qd5 Nec4 e6 Rb3 Rf7 Re3 e7 Nd6 e8B Ra3 Re7 Rc3 Ne2 g1R Qe6 Rb1 Ng1 Bd5 Bf7 Bc6 Re3 g3 Rf3 g2 Rg3 Bd5 Qe5 Bb7 Bb3 Bd5 Qe6 Bc6
1Kn1q2B/3BBRbR/1rR2N1p/1qr3k1/p1R2p2/N3n1N1/Q3NNn1/3n1b2 w - - 0 1 illegal: No possible last move, all moves rejected
2N3N1/Q4r2/1p2R2p/R4qqB/Bb3B2/B3rNpn/n2R3B/1n1bnKNk w - - 0 1 illegal: No proof kernel
1RrNb1k1/bK4N1/p2BnpQ1/2B1R1q1/1r3B1B/np1B1RbN/7b/1N2q3 w - - 0 1 illegal: No proof kernel
qQR3r1/3n2Rb/1B1N1B2/r1B1ppB1/kNB3K1/b3p3/2bp2Q1/1r3BnN w - - 0 1 illegal: No possible last move, all moves rejected
QR3R2/R1q1npk1/3Br2R/5Q1r/2N1R3/1rpp1B2/pR1b2n1/1n1bBK1N w - - 0 1 illegal: No proof kernel
3n1QK1/Q2n1p1p/N1Q5/kB1N1p2/3R2pN/N1b2N1r/1BqRr1r1/Nb2n3 w - - 0 1 illegal: No proof kernel
1N1RB1Q1/rqpbQNN1/1Q1nR1pQ/2B5/2n2p2/3pbr2/3nK3/kbQQ4 w - - 0 1 illegal: No possible last move, all moves rejected
3b2rq/1n1K3R/3p2k1/1p4pR/RBB1b1nq/3q1pNN/2Rr2Q1/NRBB4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 b5 Kd3 g5 Ke4 f5+ Kd5 Kf7 e4 d3 c4 d2 a4 b3 h4 f4 c5 b2 c6 d6 e6+ Kf6 a5 Na6 c7 Bh6 Kc6 Qe7 e5+ Kf5 Na3 b1Q Qf3 d1Q Qg2 Ra7 Nc2 Qd3 Nh3 Qdb3 Bc4 Bf8 h6 Qg7 e7 Bb7+ Kd7 Bd5 h7 Nb4 h5 Rb7 a6 Bf7 e8B Q3a2 e6 Bg6+ e7 Qf7 h6 Qg7 a7 Nd5 a8R Nc3 Ra4 Rb8 c8R Ne4 Rh2 Qbb3 Rb1 Qd3 Na1 Qf2 Bef7 f3 e8N Qgd4 Nf6 Be7 Nh5 Qh4 Ng3+ Kf6 Bb3 Bd8 Bfc4 Ra8 Bd1 Nc5+ Kc6 Nb7 Kd7 Be4 Rh1 Ne7 Rc7 Rg8 h8B+ Kg6 h7 Qb2 Bc3 Nd5 h8R Ne3 Rh5 Ng4 Bb4 Qbd4 Rf1 Qh8 Rf2 Ra6 Rc2 Rc6 Ke6 Rc5 Rch7 Rd5 Kd7 Qe2 Ra5 Rd2 Ra4 Qd3
2n2B2/k1NB2rp/4b3/bB2pQ1Q/N2R1qR1/3R1q1R/r2p2Kp/R1R3nn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 e5 b4 d5 g4 Kd7 f4 Kc7 Kf2 Kb7 c5 a5 f6 a4 f7 a3 c6+ Ka7 c7 d3 g5 h3 g6 d4 b6+ Kb7 b5 a2 g7 d2 f5 h2 f6 d3 Qh5 d1Q Nh3 d2 Nc3 Bb4 f8Q Nh6 g8R Ra3 f7 Bc5+ Kg2 Rb3 Na4 Qd3 Nf4 Nd7 Nd5 Qe3 Ba3 Rc3 Rg4 Qf4 Bd3 Qb3 Rhc1 Rc2 Bf1 Ka8 b7+ Ka7 b8R Nb6 Bc4 Bd7 c8B Be6 Bd7 Nf5 Nc7 Bb4 Rd8 Ba5 Be2 Nc8 b6+ Kb8 b7 Ng3 Beb5 Ka7 b8R Rg8 Rb6 Nh1 Rd6 Rg7 Rd4 Qd3 Qb4 Qc3 Qb1 Rb2 Qbf5 Qd3 Rab1 a1N f8R Nc2 Ra1 Ra2 Rf7 Qc3 Bf8 Qa3 Rd3 Nd4 Rh3 Ne2 Rf6 Bc4 Rd6 Ng1 Rdd3 Qc3 Be8 Be6 R8d4 Qb3 Bec6 Qd1 Bd7 Qdf3+
5b1K/N1pb4/k1B1B1r1/2r1pB2/qBR5/Q2ppQ1B/3Q1nqN/rRn1B3 w - - 0 1 illegal: No proof kernel
1Q1NR1Nn/BBrb1N1p/5N1q/1R6/3pK1Bk/pQpN1pr1/r4N1n/6b1 w - - 0 1 illegal: No proof kernel
2b3N1/1NNr1r1R/4BN1Q/1r3B2/r1b5/p3n1rQ/1kBBn1RN/3K3b w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 f4 e5 h4 gxh4 c4 exf4 cxd5 Bb7 b6 Bc6 b5 Qd6 b7 Qa3 Rxa3 Bh6 b6 Bd7 Ra5 Bg7 Ra2 Ba1 Rxa1 Bc8 e4 Kd7 g4 Kd6 d4 c5 g5 f5 g6 h5 g7 a5 Qd3 a4 Nf3 h3 Nc3 h2 Bh3 c4 Kd1 a3 Ra2 h4 Bd2 Nf6 g8B Rh5 Be6 Nc6 b8N Ra5 b7 Ra4 Nd7 Ng4 b8N Rg5 Nf6 Ne3+ Ke1 Rg8 Nbd7 Rg3 Bg4 h3 Ng8 Na5 Ke2 Nb3 Ndf6 Nc1+ Ke1 Ne2 e5+ Kc7 d6+ Kc6 d5+ Kc5 d7 Kb4 d8Q Kb3 Nb5+ c3 Rg1 h1R Qb6 h2 d6+ Nc4 Ra1 Kb2 d7 c2 d8N Ne3 Rd1 c1R Nb7 Rc3 Nc7+ Rb3 Qbd6 Rb5 Qf8 Nf1 Rg2 Rg1 Rc1 h1B Nh2 f3 Qh6 f2+ Kd1 f4 Bgf5 f3 Rc4 Rg7 Rcg4 Re7 Rg7 Rd7 Rh7 Nfg3+ Be1 f1B Bd2 f2 Qf3 Rb3 Bc2 Rb5 Qg4 Nf5 Qgh3 Ne7 Bef5 Nd5 e6 Rg7 Rg4 Rd7 e7 Rg3 e8B Ng1 Be6 Bc4 Beg6 Ne2 Bgf5 f1R+ Be1 Re3 Rg2 Rg3 Bfd3 Rf2 Bd2 Rf5 Nfe8 Rf6 Bdf5 Rff7 Nef6 Ne3+
B1R1q2K/2Rb1Qn1/b1Bkn1bB/3p1B2/N4pr1/2Q3b1/3Qn3/1B2QN2 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 axb6 c5 a4 Nf6 d4 cxd4 f4 exf4 a5 Ra7 bxa7 Ng8 a6 Qe7 Be3 Qf6 Bc1 Qd8 Kd2 Ke7 Kd3 g5 Ke4 f5+ Ke5 d5 a8B f3 h4 g4 e4 g3 c4 f2 h6 g2 h5 d3 a7 d2 h7 Bb7 h6 Bc8 c5 Qd7 c6 Qe8 c7 Qh5 Nf3 g1N Bd3 f1B Nc3 Qg6 Na4 Qf7 Qe1 d1B Bb1 Bb3 Bc6 Bb5 a8B Nh3 Nd2 Be2 Nf1 Bd7 c8B Ba2 Rg1 Nf4 Rg7 Nf6 Bd2 Rg8 h8Q Ng2 h7 Nh4 Bh6 Ba6 Qd2 B2c4 Ra2 f4 Rc2 Bd3 Rc1 Ne8 Qe1 Bh3 Bf5 Nc7 Rc5 Ne6 Rc3 Kd8 Rc2 Qg6 Rc7 Qe8 Kf6 Bc5 e5 Rg4 Qg7 Be4 h8Q Bf2 Qd2 Bg3 Qhf8 Bed3 Qc5 Be4 Qcc3 Bed3 Qf7 Be4 Bh7 Nf5 Bg6 Nfg7 Bf5 Nd4 e6 Ne2 Rd7+ Kc8 e7 Bed3 Rd8+ Kc7 Rc8+ Kd6 Rc7 Bc8 Rc1 Na6 Rc2 Nc5 Rc1 Qh8 e8Q Bca6 Qe4 Nce6 Rc8 N2d4 Qee1 Ne2 Rc2 Rh4 Kg6 Qe8 Kh7 Rg4 Rb2 Bg2 Rb7 Bdb5 Rbc7 Be4 Bcb7 Bd7 Bc6 Nf8+ Kh8 Bed3 Be6 Bg6 Bef5 Nfe6+
N1N1Q2n/b2N2bq/p2Q4/4q1Rn/K2qb3/n1Rp1N2/k5BB/1R1R3R w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 g5 h4 gxh4 d4 c5 e4 cxd4 exf5 a6 b6 Ra7 Qd3 Rc7 Qd2 Rc5 Qd1 Ra5 bxa5 Bg7 Qg4 Bh6 Qd1 Bf8 b7 h5 Qe2 Rh6 Qd1 Rb6 axb6 Bg7 Ne2 Bh6 Ng1 Bf8 Kd2 Kf7 g4 e5 c4 d5 Kc2 e4 Kb3 e3 f4 h3 g5 h2 c5 e2 f6 Ke6 f7 e1B g6 d3 c6 d4 g7 Kd5 c7 d2 f5 d3 f6 h4 Ka4 Kc4 Bg2 h3 Qh5 d1N Nc3 Nc6 b8N Nce7 b7 Ng6 Bf4 Bf5 c8N Bf2 Nf3 Ne3 Nd7 Nc2 b8R Na3 Nb5 Ba7 Nc7 Be4 Na8 Nh8 Rbb1 Qb6 Rhd1 h1Q Bh2 Qe1 Qd5+ Kc3 Qd6 Qg3 Rh1 Qe5 Rbd1 Kb2 Rac1 Qd5 Rc3 Ka2 Rb1 Qe5 Rhd1 Ne7 g8R Bg7 f8Q Nf5 f7 Ng3 Qe8 Nh5 f8R Qf2 Rf6 Qh4 Rh6 Qhf6 Bg3 h2 Rh7 h1Q Bh2 Bh6 Rg5 Bg7 Bf4 Qh3 Bh2 Qhf5 Rh6 Qh7 Bg3 Nf4 Rhh1 Nh5 Bh2 Qd8 Rhe1 Qb6 Rh1 Qbd4+
Nn6/QBn3r1/nb2q2b/4NQ2/qr2r2k/2BB2b1/B1R1QR1B/4qKQ1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Ke7 d4 Kf6 e4 h5 d6 a5 g5+ Kg6 e5 c5 d5 f5 b6 f4 b7 h4 d7 c4 e6 c3 e7 a4 b5 c2 d6 f3 b6 Kh5 g6 h3 e8B h2 g7+ Kh4 Bd2 c1B Na3 Ne7 g8B Nec6 Nb5 a3 Bd3 a2 Nc7 Bh6 Bc3 Ra4 Qe2 Bcf4 Rc1 a1Q Na8 Re4 Ba2 Na6 b8Q Rb4 Bef7 Re8 b7 Ree4 Qa7 Ncb8 Bfd5 Qf6 d8Q f2+ Kd1 f1N Ke1 Qg5 d7 Ne3 Qf8 Qg6 Qf7 Qe6 Qf5 Qb2 Bc6 Nd5 Rc2 Ndc7 Bcd5 Qa3 Bc6 Qa4 d8Q+ Bhg5 Qg8 Bh6 Nh3 g1B Ng5 g2 Nf7 Bc5 Ne5 Bb6 Rf1 g1R Bcd5 Rg7 Rf2 Bg3 Kf1 Rf7 Qgg6 Rg7 Bc6 Bgf4 Qg1 h1Q Bcd5 Bg3 Bc6 Qf3 Bcd5 Qf4 Bc6 Nd7 b8B Qe3 Bb7 Qd2 Ng4 Nd5 Bf4 Ndc7 Ne5 Ndb8 Rf3 Be1 Bh2 Bg3 Rf2 Qe1+
qnK2Q2/NQR5/rN1r1BnN/8/2N1b1Qb/QbrB1R2/r3N2k/1q5r w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Kf4 d4+ Ke4 f4 e5+ d6 h5 g4 h3 f6 h4 b6 h2 g5 c6 g6 h3 f7 b3 b7 b2 g7 Ra6 f5 Be7 f8N Ra3 d5 Nf6 g8N Rf3 Ra3 Ng4 f6 Rf2 f7 Rh6 Rf3 Bh4 d7 Rd6 Na3 b1Q Nc4 Ra2 Bg5 Qe8 d8N Be6 Bf6 Ra6 Ra3 Kf4 Bd3 Kg3 Nh6 e4 Nd7 e3 f8Q e2 Ndb6 e1R Ne2+ Kg2 Rf1 h1B Rc3 h2 Rf3 Ne5 Qc1 Ng6 Qa3 Rd1 Rc2 Rd2 Rc1 Rd7 d6 Ra2 Qg7 Re7 d7 Qh8 Kd6 c5 Nb2 c4 Kc7 c3 Kc8 Bb3 N2c4 c2 Qf8 Re5 Nc6 Re6 d8Q Rd6 Qd7 Qg8 Na7 Qh8 Rd1 c1R Rd2 Rc3 Rc2 Nc6 b8Q Qg8 Qbc7 Nb8 Qb7 Qh8 Rf5+ Kh3 Qda4 Be4 Rf3+ Kg2 Qad7 h1R Qg4+ Kh2 Rb2 Bd1 Rb5 Bc2 Rc5 Bb3 Rc7 Qg8 Qc6 Qd5 Qb5 Qa8 Qc6 Bg3 Qb7 Bh4
R2b1QQ1/1Q1Nq1b1/q1Nk1rB1/3r1Qb1/6Rn/1b3B1R/rr6/1n2QRK1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 d4 e5 h4 a5 b6 c5 d6 c4 d5 g4 f6 c3 h5 f3 f7 e4 b7 a4 b4 c2 g7 c1Q b5 a3 h6 a2 b6 Qf4 h7 Nc6 b8R Nh6 g8B Nf5 b7 Qe7 Bg2 Qh6 Rh4 Na7 Nc3 Nb5 Nge2 e3+ Kg1 g3 Qe1 Na3 Rg4 Bg7 f8Q Ra5 Na4 Nb1 Ra8 Nh4 Nd4 e2 b8Q Rc5 Bh1 g2 Bf7 Bb7 Bg6 f2+ Kh2 f1R Nc6 Rf6 Kg1 Rg8 h8R Ba6 Qb2 Bc4 Qe5 Bb3 Qf5+ Qe6 Qb8 Rc2 Rh7 Rb2 Qb6 Rc8 Qb7+ Rc7 Kf2 g1R Bf3 Rh1 Rhh8 Rh2+ Kg1 Qh7 Nb4 Bh6 Nc6 Qe7 Rh7 Bg5 Rh5 Ng2 Rh3 Nh4 Qd2 Nc3 Rf1 a1B Qe1 Nb1 Nb8+ Kd8 d7 Rc5 Nb6 Ra5 Qa6 Kc7 Nc6 Kd6 d8Q+ Q6d7 Qg8 Qc8 Qb5 Qa6 Nd7 Rba2 Qb7 Rb5 Qf2 e1B Qf8 Bed2 Qe1 Ba5 Nc5 Rf7 Nd7 Bg7 Nf6 Bc7 Qfb8 Rhb2 Qf8 Kc5 Qg8 Qe5 d6 Rba5 d7 Kd6 Qb5 Qe2 Qb7 Rd5 Qf8+ Qe7 Qg8 Qe6 d8Q+ Qd7 Qdf8+ Qe7 Nd7 Rf6 Rc8 Ba5 Ra8 Bd8
1Q1B1K2/B2Qb2N/RN1q3N/q1pQrb2/6bQ/Rnn1N1r1/b7/Qbk5 w - - 0 1 illegal: No possible last move, all moves rejected
4B2B/3R1nbr/3nK3/1Q1B2qB/N2R4/1rqbRNQ1/1n1p1nR1/1k1B2b1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 b3 f4 e6 c4 h4 g4 b2 c5 d3 b6 d2 c6 d4 f6 Kg6 c7 h3 f5+ Kf7 g6+ Ke8 b7 Kd7 g7 Kc6 f7 Kc5 g5 Kb4 f6 h2 g6 d3 Qf3 Kb3 Nc3 Kc2 Ra3 d1N Na4 b1Q Bb2 d2 Re3 Ne7 g8B Ra6 g7 Rh7 Bb5 Qa1 Be8 Rb6 Qg3 Rb3 Nf3 Kb1 Rg1 h1N Rg2 Nhf2 Bd4 Bd7 c8B Nbc6+ Kd6 e5 b8Q e4 Qb5 Ne5 Bb2 Bc6+ Ke6 Ba8 Bb7 Qa3 Bd5 Nf5 Bc3 Nb2 Bd4 Bd6 f8R Nf7 Bc3 Be5 Bd4 N7d6 Bgf7 Nh6 Bh5 Nhf7 g8B Bb7 Bc3 Ba6 Bd4 Bf4 Be5 Bh6 Bc3 Bg7 Bd4 Nh6 Rf7 Qa5 Rd7 Nhf7 Bc3 Qc5 Be5 Qac3 Bd4 Ra3 Bb3 Qg5 Bd1 Rb3 Qf1 Nh8 f7 Bd3 f8R Nhf7 Be5 Nh8 Rf4 Nhf7 Re2 e3 Rd4 Bh6 Bh8 Bg7 Re1 e2 Qe5 Nh3 Qb5 Nf2 Qg1 Qh4 Qh2 Qd8 Qg3 Qg5 Rh1 e1B Rhh4 Nh1 Rhe4 Bf2 Re3 Bg1 Qd5 Nf2 Qb5 Qf5+ Ke7 Nh6 Bd5 Qg5+ Ke6 Nhf7
k3K3/1b1n1b2/3q1RbB/1n1R1n1Q/1N5Q/p1qB1B2/1Q1r1B1Q/NB1rb3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 d4 c4 g4 f3 b4 f6 Kg6 Kc7 Kf7 Kb7 e4 f2 b6 h4 b5 a4 e5 a3 d6 c3 d7 c2 e6 h3 g6 h2 e7 f5 e8Q f4 d5 f3 d6 Bg7 g5 Be5 g7 Qc7 g6 Qc3 d8B Qd2 d7 Qe1 Nc3 Bd4 Nge2 Ra4 Na2 Ra6 Bh4 Bb2 d8Q Bf6 Bh6 c1N Nd4 Bf5 Nb3 Qe5 Bd3 f1Q Nb4 f2 Qh5 Qh3 Rf1 Ne2 Rad1 h1B Na1 Ne7 g8B Bc6 g7 Nd7 Bh7 Nd4 g8B Qd6 Bb1 Bc2 Bd3 Nef5 Bg3 Bg7 Qdh4 Bh1 Qe6 Ka8 Ke8 Bb7 Qef7 Bb3 Rd2 Be6 Rdd1 Bf8 Bh7 Ra4 Be2 Rg8 Bf3 Rg4 Bg6 Re4 Bh7 Re2 Rd3 Rd2 Bg6 Nc6 Rd5 Na7 Bh7 Nd4 Bhd3 Nf5 Rh1 f1B Bf2 Bg7 Rg1 Rd1 Rg6 Bc3 Rf6 Be1 Re5 Be4 Rd5 Bg2 b7+ Kb8 Nbc2 Rd4 Nb4 Qhg3 Bc4 R4d2 Bcd3 Qg7 Na2 Qg5 Bd4 Rb2 Bg4 Ne3 Rdf5 Kc7 b6+ Kc6 Rb5 Bg6 Re5 B2e4 Bf3 Nf5 b8Q Qc1 b7 Rbd2 Bf2 Qc3 Bfe2 Bf3 Rb5 Qd5 Qbh2 Qd6 b8Q Bh1 Re5 Be4 Qb2 Nb5 Bf3 Kb7 Rc5 Ka8 Nb4 Bb7 Rd5 Bexf7+
N5N1/7q/2RRKNkn/1r1b3R/Bb1R2pQ/2b4r/1N1qRq2/2bnQB2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Kf2 c5 Kf3 e5 Ke4 a5 h4 g4 d4 a4 d6 c4 Kd5 f3 g7 Kf7 b4 c3 h5 c2 d7 c1Q b6 f2 h6 e4 h7 e3 b7 a3 f6 a2 b5 e2 b6 e1B Na3 Beb4 Qe1 Bbd6 Ne2 Qe7 d8R Bh2 Rd6 Qh6 Nf4 Qe2 Nc4 Nc6 b8R Qe7 b7 Bg3 Rc1 a1B Nb2 Qe8 Ng6 Ra2 Ne7 Na5 Rcc6 Be5 Rh5 Ra4 Ra8 Qg6 b8N Qb1 Na6 Qd3 Nc7 Nh6 Ng8 Kg6 f7+ Bf6 Rb8 Rb4 Na8 Bd7 Rb7 Bc8 Re7 Bb7 Re2 Qd8 Ke6 Rb5 d5 Bg5 Nf6 Qb1 g8B Be7 f8R Qd3 Rf7 Bf8 Rfd7 Qc7 Rd8 Qd2 R8d7 Nc4 Bf7+ Kg7 Be8+ Be7 Rd8 Ne3 R8d7 Nd1 Rd8 Rg8 h8N Bf8 Nf7 Kg6 Bd7 Rh8 Be8 Qda5 Bd7 Bc1 Be8 Qd2 Bd7 Nf5 Nh6 Be7 Nhg8 Nh6 Rb6 Qcc2 Rdc6 Bb4 d6 Kg7 Be8 Qg6 d7 Qh7 Rd6 Bf3 Rbc6 Be4 Nc4 Bac3 Nb2 Bf3 Rb8 Bh1 d8Q Be4 Bd7 Kg6 Rbb6 Bh1 Rd4 Bf3 Rcd6 Bh1 Rbc6 Bf3 Bg2 f1Q Qe7 Qg1 Bf1 Qg3 Ne8 Qf2 Qh4 Bh1 Nef6 Bd5+ Ke5 Qd3 Qh1 Qd2 Rf5 Qf7 Rc8 Rb7 Ba4 Rb5 Rcc6 Qg7 Rh5 Nf5 Rh2 Rh5 Rh4 Qh7 Qh3 Bh1+ Ke6 Nh6 Qh2 Rhf5 Qh3 Rf3 Rh5 Rg3 Qh4 Rh3 Rd7 Be4 R7d6 Bd5+
4RQ1b/RpnrB3/4rQN1/2nN2K1/1BNB2n1/q2bB1q1/B3k3/n3bN2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e3 Nf6 e4 Ng8 g4 f5 exf5 h5 a3 bxa3 gxh5 Be6 Qb3 Bd7 Qd1 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 d4+ Kb4 f4 c5 h4 g5 d6 e5 d7 e4 d5 e3 d6 a2 h6 e2 h7 Kc4 f6 Nc6 h5 Nce7 f7 Qe8 f5 Rb8 d8B Ng6 d7 Bh6 f8Q Bg7 h6 Nf4 f6 Qe3 f7 Ne6 Be7 Nc7 Qd6 Qa3 Qf6 Kd3 Nc3 c4 Nd5 c3 Be3 c2 Nf3 c1N Nh2 Nb3 Kf5 g4 Kg5 g3 d8N g2 Nc6 Bd7 Na5 Rd8 Nc4 g1Q+ Bg2 e1B Nf1 Re8 Rh4 Bc6 Re4 Ke2 Bb4 Rd8 Re8 Bb5 Be7 Qf2 Bh3 Rd7 Bb4 Ne7 Be6 Ng6 Be7 Rg8 h8N Ne5 h7 Nc5 Ng6 Ng4 h8B Qg2 Qf4 Bb2 Bhd4 Qg3 Qf6 Rh8 Q8g7 Rh6 f8B N5a6 Bb4 Nc5 Be7 Ba6 Qgf8 Bb5 Nce5 Bd3 Nc4 Bbc3 Rb1 a1N Rb3 Qa2 Ra3 Qb2 Ra7 Qa3 Bd6 Rhh7 Bg8 Rhe7 Bf7 Re6 Be7 Bb2 Qf5 Na8 Ncb6 Qe5 Bdc3 Qb8 Nc7 Rc6 Ba2 Re6 Ncd5 Qg3 Nc4 Nc7 Bh8 Be5 Bhf6 Bd6 Bfd4 Be5 Qf4 Bg7 Q4f6 Bh8
2r1n1q1/n1rB1BB1/3q2nN/2NBpq1k/bR1Q3B/Q1Kr4/8/1q1RN2N w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 g6 Be6 g5 Bg7 c3 Bd4 cxd4 Bg4 f3 Bxf3 d5 Bg4 Rh2 Bd7 Rh1 Bc8 b4 c5 d4 h5 Kd2 e5 b6 a5 g7 Kf7 d6 Kg6 b7 a4 b5 c4 d7 a3 b6 h4 d5 f3 d6 e3+ Kc3 a2 Qd4 f2 Na3 h3 Ne2 h2 Bh3 f1R Nc2 Rf2 Ng3 e2 Rb1 e1N Rb4 Ng2 Ne1 Nf6 g8B Nc6 b8N Nh4 b7 Ra7 Na6 Ne8 b8Q Rd2 Nc5 Rc7 Bd5 Na7 Qa8 Bb7 Rg1 Bc6 Nh1 Kh5 g6 Ba4 g7 Ng6 g8B Qc8 d8B Qf5 d7 a1Q+ Rb2 Qa2 Bh4 Qab1 d8N Qa2 Bgf7 Qab1 Nf2 h1Q Rb4 Qg2 Nh1 Qgg5 Rf1 Qe7 Ba3 Qd6 Bc1 Rf2 Bh6 Rd2 Bg7 Qa2 Rb1 Rg8 Rd1 Rf8 Rf4 Rg8 Kb4 c3 Re4 c2 Kc3 Qf4 Bd7 c1Q+ Nc2 Qcb1 Ne1 Nc8 Qa5 Qf5 Qab4 Na7 Qa3 Rh2 Re2 Rg2 Rb2 Rd2 Rb4 Nf6 Nc6 Rgc8 Ne7 Ne8 Ng8 Qf8 Bg2 Qd6 Nh6 Qad5 Bg8 Qdf7 Bd5 Qff8 Bge6 Qg8 Bf7 Rd3+
2q3q1/1k2B1QN/1q3rQ1/2qR1B1K/b1R2Q2/2q1qn1p/NBB1b3/Q1Qn4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Qd2 a5 Qd3 f4 Qd1 Be7 h4 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 g4 Bh3 Kf8 Bf1 Bg5 hxg5 Ke8 Kf2 h5 e4 d5 b4 Kd7 c4 Kc7 b6+ Kb7 g6 d3 b5 d2 e5 d4 c5 d3 e6 a4 e7 a3 e8Q h4 f6 a2 g7 h3 f7 Qg5 f8B Rh6 Nc3 Nd7 Be7 Rf6 Qg6 Nh6 g8Q Nf5 Bb2 Ne3 Rc1 a1Q Q8g7 Ne5 Na2 Bd7 Rc4 Qh5 Qc2 d1Q Qc1 d2 Bd3 Qb3 Bc2 d1B Rh2 Be2 c6+ Kc8 c7 Kb7 Rg2 Qh7 Rh2 Qg8 Rg2 Qb4 Rg3 Qc5 c8B+ Kb8 b7 Nd1+ Ke1 Bc6 B8f5 f2+ Kd2 f1Q Rd3 g3 Rd5 g2 Nf3 g1Q Ng5 f3 Nh7 Ka7 b6+ Ka6 b8Q f2 b7 Ba4 Qc7 Qc8 b8Q Qfg2 Qd8 f1Q Qdh8 Qff3 Qb4 Qb6 Qd6 Qgc5 Ke1 Nc6 Qdf4 Nd4 Kd2 Qfb3 Ke1 Kb7 Kd2 Nc3 Ke3 Qe4+ Kf2 Nf3+ Kg3 Nd1 Kg4 Qee3 Kh5 Qbc3 Nb4 Qaa3 Na2 Qab3 Rcd4 Bc6 Q7h6 Bf1 Ba1 Qcb2 Rd8 Qg8 Rc4 Rf7 Rd5 Ba4 Qhd4 Rf6 Qhg7 Qba3 Qdb2 Qad3 Qbb1 Be2 Bb2 Qda3 Qa1 Qac3
2NKN3/1r5B/RQ3p2/1Nn1bB2/3rp2r/2NqkB1n/1n1b2RB/Q2r3N w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 e5 h4 Nc6 a4 Nd4 axb5 g5 f4 gxh4 f5 Be6 fxe6 Ne2 Qc2 Nf6 Qa4 Nxe4 Qb3 Nf6 Qd1 Ng8 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kf5 Kd4 b4 a5 g4 h5 e7 c5 e8B e4 d6 c4 b6 h3 b7 h4 b8Q f6 Ke6 a4 b5 c3 d7 h2 g5 c2 b6 h3 g6 a3 g7 a2 b7 Ra5 Bg6 Rh7 Bf5 Bd6 Nc3 Ne7 g8B Bg3 Bg2 Rh5 Bf3 Rh4 Bgh7 Qc7 d8N Ra3 Nf7 Qc4+ Kd7 Bd6 Kd8 Bc5 Nd6 Ra8 Ne8 Nf4 Nge2+ Kd3 Qe1 Bd6 Ng3 Neg6 Rg1 h1R Rg2 h2 Ba3 Rg1 Nh1 Be5 Bd6 Ra4 Qa7 c1B b8N Rf1 Qb6 Nh3 Nc6 Ngf4 Nd4 Qb3 Ndb5 Rd4 Qd1 Qc4 Qa4 Rd1 Qaa5 Kc2 Qaa6 Nd3 Qa8 Nb2 Qaa7 Rd5 d4+ Kd3 Qa3 Ke3 Qa4 Rc5 d5 Bd2 Bb8 Rb1 d6 Qd3 d7 Rd1 Ke7 Rb1 d8N Rd1 Nc6 Rb1 Qba6 Rd5 Nca7 Rd4 Qb6 Rd1 Nc8 Rb1 Ng3 h1R Qaa5 Rhd1 Nh1 Nc4 Bd6 Rb4 Kd8 Nb2 Rc1 a1N Rc2 Nc4 Ra2 Nb3 Qaa7 Nb2 Ra6 Rc4 Qa8 Rc7 Qaa7 Nc5 Qa8 Rb7 Qaa7 Rc4 Qa8 Bd4 Bh2 Be5+ Nbd6 Ng1 Ra4 Qf1 Ndb5 Nh3 Ra1 Qe2 Qa2 Rb4 Qb1 Qc4 Ra6 Qf1 Qa1 Rd4+ Qd6 Nd7 Qc7 Qd3 Qb6 Nc5+
4B3/q1B1p2q/rrR1BQ2/1Bn2p2/QNb4R/1rQ1K1N1/1B2Q3/1k1nr1r1 w - - 0 1 legal: proof: g4 b5 h4 d5 f4 g5 c4 gxh4 cxd5 b4 g5 b3 g6 Bh6 axb3 Bd7 b4 Bg4 b5 Bg5 fxg5 Bxe2 Kf2 Kd7 b4 Kd6 d4 f5 b6 c5 g7 a5 g6 h5 b7 c4 b5 c3 b6 c2 Nc3 h3 Na2 a4 Nb4 h2 Bb2 c1R Ke3 a3 Qa4 Nh6 g8B a2 g7 h4 Bf7 h3 g8B Rc8 Be8 Nd7 b8Q+ Qc7 b7 Nc5 Rc1 a1R Be6 Bc4 Ne2 Ra6 Ng3 Rg8 Qa8 Rb6 Q8a6 Rb8 Be2 Ra3+ Bd3 Ra8 b8Q Rb3 Qbc8 Qa7 Rc2 Nf7 Q6b5 Ng5 Qca6 Nge4 Q6a5 Kc7 d6+ Kb7 d7 Nf2 d8Q Rg4 Re1 h1R d5 h2 d6 Rg5 Ree2 Re1 d7 h1Q Rc3 Qh7 Rc1 Rd1 Re1 Rg4 Rh1 Rg1 Rh4 Re4+ Kd2 Ree1 Bf1 Bd5 Qe2 Bc4 Rc3 Rc8 Ke3 Rcc6 Qa8+ Kc7 d8B+ Kd6 Qc8 Ke5 Qa1 Ra6 Q5a4 Rcb6 Bg2 Qb7 Bgc6 Qa7 Bb5 Ng4+ Kf3+ Kd4 Kf4 Nf2 Qc6 Nfe4 Bc7 Nf2 Qd7+ Bd5 Qc1 Nce4 Bg8 Rd1 Qc6 Rde1 Qg6 Be6 Ba3 Bd5 Rc6 Nc5 Be6 Bc4 Qa1+ Rb2 Qg5 Kc3 Ke3 Nfd3 Qa5 Nf2 Qf6+ Kb3 Nc2 Rbb1 Q1c3+ Ka2 Qa4 Rb3 Bb2+ Kb1 Nb4 Nd1+
1q1Bn3/1bn1r1k1/5N2/1q3BB1/pRBBn1R1/1r2p1nR/1N1RQ1Kr/7Q w - - 0 1 illegal: No possible last move
3q3k/BR1Qn2b/4bNRN/p2r2K1/1nnB1q2/5BpN/6NN/1BQ1qq2 w - - 0 1 illegal: No possible last move
k2N4/2Qp1bRR/p2b1B2/1bn1b1q1/B6b/r3bN2/Q1K2QrQ/N3NQ2 w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 h5 e4 c5 exf5 a6 d4 cxd4 g4 hxg4 b6 Rh5 b7 Rh7 b5 Nc6 b6 Na7 bxa7 Rh8 Kd2 g5 b8N e5 f4 e4 h4 d3 c4 g3 c5 g2 c6 g4 h5 g3 h6 Nf6 h7 Ke7 c7 Kd6 Nc6 Bh6 Bb2 Rf8 h8Q Nh5 f6 Bb7 c8Q Bg7 f5 Qa5+ Nb4 Nf4 f7 Bc6 f6 Ne6 Rh7 Bb5 Na3 Nc5 Nf3 g1B Nc2 g2 Nce1 e3+ Kc1 d2+ Kc2 Rg8 f8N e2 f7 Be3 Ne6 g1B Bf6 Bh2 Nd8 Rb8 a8Q Bf8 Qb1 Rg2 Qa7 Be5 Qa2 Be7 f8Q d1B+ Kb1 Bb3 Nbc2 Kd5 Qcc7 B7d6 Rg7 Rb7 Qh2 Qd2 Ncd4 B3c4 Nb3 Qa5 Kc2 Rb6 Nd3 e1B+ Be2 Bh4 Rh1 Bc6 Na1 Rb3 Qab6 B6b5 Nde1 Ra3 Qba7 Bef2 Bd1 Qd2+ Kb1 Qg5 Ba4 Be3 Qab6 Bc6 Qbb2 Bb5 Qf2 Nd3 Qh8 Bhg3 Qhg1 Nc5 Qh4 Bb3 Qgf1 B3c4 Qf4 Bb3 Rhh7 Bh4 Nb7 B3c4 Qh2 Bb3 Qd8 Kc6 Qb8 Kb6 Qc7+ Ka7 Nd8+ Ka8 Q1e2 Be7 Qef1 Bf7 Kc2 B7d6
4KR1Q/n3br2/RQ6/1p1NrBNp/rB4n1/2n2b1N/6Nn/k2bB1BB w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Nb8 h5 Qd6 Bc4 Ra3 Bf1 Qg6 hxg6 Ra8 Kf2 Kd7 Kf3 Kd6 Kg4 Ke5 Kh5 Kd4 a4 b5 d6 c5 f6 e5 d7 c4 d8B f3 g7 e4 g6 c3 a5 c2 a6 h6 a7 e3 f7 f2 Bh3 f1R Na3 e2 Ba5 e1N Bf5 b3 Nc4 b2 Nh3 b1B Ne3 Rf4 Rf1 Nd3 Ng2 Bb4 f8B Ba3 Bfb4 Ne7 g8N Bb7 g7 Rf2 Nf6 Nd7 g8Q Nc8 Kg6 h5 Kf7 Ne1 Nd5 Nf3 Ke8 Nde5 d3 Rh7 Qh8 Re2 Bcd2 c1N Be1 Na2 Bc7 Rc2 Bb6+ Rc5 Qc1 Rg7 Qch6 Bc2 Qf6 Rf7 Qd6 Rb8 a8B Bd1 Ba7 Nc3 Qb6 Nh2 Ra2 Bc1 Ra6 Bg5 Nc7 Bbf3 Nd5 Bf6 Bc6 Neg4 Rf2 Ke5 d4+ Kd6 Rf1 Be7 Nf6 Rh7 d5 Ke5 d6 Kd4 d7 Ba4 d8N Nd5 Bb1 Bad1 Ra5 Be4 Nf7 Bdc2 Qd8 Ra8 Nh4 Bd1 Nfg5 Kc4 Qc7 Nc3 Bc2 Rd5 Bg1 Re5 Qb6 Ra6 Bb1 Kb3 Ra4 Kb2 Ba8 Bf5 Bh1 Be4 Ng2 Na7 Nd5 Rg7 Rf8 Bef3 Bf5 Rh7 Ra3 Rf7 Rb3+ Ka1 Rb2 Bde2 Rb3 Ra2 Ra3 Bd1 Ra6 Ra4
1q1Bn3/k1b5/1NQ2bBN/KB1B4/R1N3q1/p1QpB2r/2pqrn2/3N3R w - - 0 1 legal: proof: h4 b5 a4 f5 axb5 g5 e4 gxh4 exf5 Ba6 d3 Bc8 Bf4 c5 Bg5 c4 Qd2 c3 Qd1 Bb7 Bc1 Bd5 Bf4 Bc4 dxc4 Nc6 Ke2 Nb4 Bc1 Nxc2 Kd3 e5 f4 d5 b4 Kd7 g4 Kc7 f6 Kb7 c5 a5 b6 h5 c6+ Kb8 f7 h3 b7 h4 c7+ Ka7 b8Q+ Ka6 g5 h2 g6 h3 g7 d4 Kc4 e4 f5 a4 b5+ Ka5 c8B e3 f6 e2 b6 e1B b7 Kb6 Nf3 Ra5 Qc7+ Ka6 Qd2 Rh6 Nh4 Rb5 b8B+ Rb7 Nf5 Rh7 Nh6 Nb4 Bf5 c2 Bg6 Be7 f8N Bg3 f7 Nf6 g8B Ne8 Nc3 Bf6 Nd7 Nd3 f8N Nf2 Bd5 Re7 Kc5+ Re2 Nd1 Rb3 Ne5 Qc8 Nc4 Qg4 Qd7 Bc7 Qc3 Ra3 Be3 Rb3 Rg1 h1Q Ra3 Qh2 Rh1 Qhg3 Ra2 Ra3 Kb4 h2 Ba7 Q3f4 Bb6 Qe5 Ba5 Ka7 Qc6 Qef4 Nd7 Qe5 Rg1 h1Q Ndb6 Qhg2 Rh1 Qd6+ Kb5 Rb3+ Bb4 Qd8 Ka5 Qb8 Be7 Qh2 Bd8 Qhf4 Qb4 Rd3 Qc3 a3 Rb2 Qh2 Rb4 Qhf4 Ra4 Qfg5 Bf4 Rh3 Bc1 Qe3 Bd2 Qd3 Be3 Qd2 Ne5 Re1 Bb5 d3 Nc4 Re2
1B4K1/2bQ1QQ1/Bq1rQn2/q1p5/1RpR2Q1/Nn2pb1B/N4kr1/5Bq1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 dxc4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kb6 g4 h4 f4 c6 d5 Kc5 g6 b3 g5 e6 d6 b2 f6 h3 f5 h2 b6 Na6 g7 Rh5 d7 Nb4 g6 Na6 b7 Rh3 b8Q Nb4 f7 Rh7 f6 Ra4 Ne2 Be7 f8Q Qa5 d8Q Na2 f7 Rb4 Q8d7 Rb6 Bf4 Qa7 Nc1 Qa4 Na3 b1Q Qg4 Qbb3 Rb1 Nf6 g8B Qa5 g7 Bb7 Qbc8 Rh3 Qfe8 Rg3 f8Q Rg2 Qef7 Ra6 Bg3 Qbb6 Rb4 Ba8 Bh7 Bb7 Qh8 Bd8 g8B Ba8 Rg1 h1Q Bf5 Qh2 Qhg7 Bb7 Rh1 Qg1 Rh4 Ba8 Be4 Bb7 Bgh7 Ba8 Bhf5 Bb7 Ne2 Nc1 Nc3 Nb3 Na2 Ba8 Qgh5 Bb7 Bh3 Ba8 Qhg4 Bb7 Kf4 e5+ Kg5 Bc7 Kh6 Ba8 Qde6 Kd4 Qcd7+ Ke3 Bd5 c5 Bb7 e4 Bh2 Ra7 Ba6 Kf2 Be5 e3 Bf4 Ne8 Kh7 Bf3 Kg8 Rb7 Rh5 Rb8 Rd5 Ra8 Rd4 Rd8 Qb5 Rd5 Qbd7 Nf6+ Kf8 Bd8 Bc7 Rd6 Bb8 Ne4 Kg8 Bc7 Kh7 Nf6+ Kh8 Ne8 Kg8 Nf6+
1rQ2Q2/1Nnb3N/1N4q1/2nN1qR1/2ppBB2/1b1bn2K/1p1BBk2/1B1R4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 Qa4 b5 Qd1 f5 exf5 b3 Be2 c5 Bd3 b4 Bf1 Ra5 d3 Rb5 cxb5 c4 d4 Bg7 Qd3 Be5 Qe2 Bd6 Qd1 Bc5 dxc5 Bb7 Rh2 Ba6 Rh1 Bc8 f4 Kf7 Kf2 Kf6 g4 h5 Kg2 d5 a4 e5 b6 e4 b7 d4 g5+ Ke7 g6 Kf6 c6 e3 c7 e2 g7 e1Q a5 b2 a6 b3 a7 Nd7 b8B Qde8 a8B Q8e5 Bd2 Qd6 Ra5 Qf2+ Kh3 Ne7 g8B Nd5 Ne2 Nc5 Ng3 Bd7 c8N Nc7 Nc3 b1B Be2 b2 Be4 Ba2 Bh7 Bb3 Nb6 Qe6 Rb5 Qg8 Qa1 Qg6 Rd1 Qf3 Qa6 Qfg4+ Kh2 h3 Qc8 h4 Bb1 Kg7 f6+ Kh6 f7 Q4f5 f8N Rg8 Kg1 h2+ Kg2 h1N Ncd5 h3+ Kh2 Nf2 Ne4 Rh8 Nd6 Ng4+ Kg3 Kh5 Nb7 h2 Kh3 h1B Ra5 Qfg5 f5 Be4 f6 Bd3 f7 Q5f5 Rb5 Na8 Bbf4 Nc7 Bg8 Ba2 Nh7 Bb3 Kg2 Kh4 f8Q Qff6 Be6 Qff7 Bf5 Qfe6 Be4 Qef5 Bh6 Rg8 Kh1 Kg3 Bhf4+ Kf2 Ra5 Nf6 Kh2 Ng4+ Kh3 Rg7 Qh8 Re7 Qcf8 Re8 Qhg8 Ra8 Qc8 Rb8 Qgf8 Qff7 Rb5 Qff5 Nd8 Qff6 Ne3 N5e6 Rg5 Nc5 Ned5 Qff5 Nb7 Ne3+
QN3KQB/2kN3N/p1n5/1r1Q1Rq1/1R5n/qB5p/1pr2QN1/1Nbq1r2 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 d5 h4 g5 c4 gxh4 cxd5 Ba6 Bd3 cxb4 Bf1 b3 Nh3 b4 Ng1 Bb5 axb5 Bh6 Bd3 Bg7 Bf1 Bf8 Ke2 Kd7 Kf3 h5 Kf4 h3 Kg5 e5+ Kg6 h4 Kf7 b2 d4 h2 f4 h3 g4 e4 d6 b3 b6 a6 d5 e3 b7 e2 f6 e1R g5 Re2 g6 Re5 f5 Ra7 g7 Qa5 Ra4 Qd8 Bc4 Be7 Qc2 Qa5 Rb4 Qb6 Nf3 Re3 Qf2 Rd3 Ne1 Rd4 Rf1 h1Q Ng2 Nc6 b8N+ Kd8 d7 Kc7 d8Q+ Kb7 d6 Qg1 d7 Rf4 Be3 Rh5 Bd4 Nh6+ Ke8 Ra8 f7 Bg5 f6 Nf5 f8N Nh4 g8Q Bh6 f7 Rb5 Qdg5 Kc7 Nh7 Qa5 f8N Qa3 Q5d5 Rf3 Bc3 Bc1 Bh8 Rc3 Kf7 Rc2 d8Q+ Kb7 Qdf6 Kc7 Nfd7 Ra7 Kf8 Ra8 Ne3 Qg5 Q6f3 Ra7 Ng2 Ra8 Nd2 b1Q Qfe4 Qba1 Nb1 Qd4 Qe8 b2 Bb3 Ra7 Qfe3 Qd1 Rf5 Rf2 Q8e4 Rf1 Qf2 Rab7 Qe8 Rc5 Qee4 Rc2 Qef3 Rb5 Qfe4 Ne5 Qa8 Nc6 Qef3 Nd8 Qfd5 Nc6
N2Q3R/4KBpR/QRN1B1p1/2rq4/3p1R2/bbr3k1/1N1qn2b/3r1RN1 w - - 0 1 legal: proof: e4 d5 g4 b5 d4 c5 dxc5 d4 a4 f6 axb5 Na6 g5 Nb4 g6 hxg6 Bf4 Nd5 Be5 fxe5 exd5 Qb6 Bd3 Qd6 Bf1 Qd8 Ke2 Kd7 Kd3 a5 Kc4 e6 f4 a4 b4 e4 h4 a3 h5 e5 f5 e3 d6 e2 Kd5 e1R c4 e4 c6+ Ke8 c7 Kf7 d7 Kf6 b6 Kg5 Ke6 Kf4 b5 e3 c5 e2 h6 a2 c6 Bc5 h7 Qg5 b7 Qg2 b8R Qh3 b6 Qg4 b7 Be7 Nd2 Nh6 Nc4 Qh5 f6 Rf8 h8R Ng4 f7 Ra7 Qa4 Ra5 Nb2 Rc5 Qa6 Nh6 Rh7 Rd8 f8R+ Kg3 Rf4 Nf5 Rh8 Qf3 R1h7 Rd1 Bg2 Qc3 Bd5 e1B Kf7 Rg8 d8Q Qd2 Bc4 Bd7 c8N Bd6 c7 Ba4 Rc1 a1Q Nb6 Qa2 c8B Bb3 Na8 Re8 Bd7 Re3 Bde6 Rc3 Ke8 Bc7 Bf7 Qa5 Bce6 Qb5+ Kf8 Qc6 Rb1 Qd5 Ra1 Nh4 Ke7 Nf3 Rc8 Be5 b8N Bc7 Nc6 Bb8 Nh3 Ng1 Rc7 Ne2 Ng1 Bf2 Rb7 Be3 Nf3 Bg1 Rb6 Bh2 Ng1 Bc7 Rb4 Ba5 Rb6 Bb4 Rb1 Ba3 Ra1 Rdc1 Rb1 R1c2 Re1 Rc1 Ref1 Rd1
5Qr1/Rq6/r3NN1N/N1qq3K/4bp2/1nQNR3/p1QBQ1p1/1qn1B1k1 w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 h5 axb5 Bc5 Bh3 Bf8 g5 Be7 Bg4 d5 cxd5 Bf6 gxf6 exf4 Kf2 hxg4 Kf1 Nc6 Ke1 Nb8 Kf2 Kd7 e4 Kd6 b4 Ke5 h4 Kd4 e5 g5 h5 c5 h6 a5 d6 c4 h7 c3 f7 a4 f8Q f3 Kg3 f2 e6 f1Q d7 a3 e7 c2 e8N Qb6 d8N Qc4 Ne6+ Ke4 d4 Qb7 b6 Ra4 b5 Qa8 d5 Nd7 b7 Qb8+ d6 Qd3+ Nf3 Ngf6 b6 Ra6 Nd2+ Ke3 Ne5 Qa7 b8Q Bb7 Qc7 Be4 b7 Nc5 b8B Qd5 d7 Nb3 d8N Qab7 Nd3 Rg8 h8Q Nd7 Nf6 Ndc5 Nf7 a2 Rh7 Ra7 Nh6 Ra6 Qg1+ Ke2 Qh2+ Ke3 Qh5 Ke2 Nc4 Kf1 Rb1 Kg1 Bd2+ c1Q Na5 Qd1 Qhe8 Nc1 Rb3 Qf1 Ra3 N5b3 Qcc6 Qd1 Be1 Qc2 Bf4 Qcc5 Rf7 Kf1 Bfd2 f4+ Kh2 g3+ Kh3 g4+ Kh4 g2 Re7 Qa8 Ra7 g3 Qh5 Kg1 Qe2 Qb7 Qhg7 Qe3 Qc2 Qec5 Qc7 Kh1 Qe5 g1Q Kh5 g2 Ra4 Bf5 Re4 Qf1 Re3 Kg1 Bh4 Qe1 Qc7 Qf1 Qc3 Qd1 Bhe1 Qc2 Qcc8 Qb2 Qc2 Qb1 Qc7 Be4+ Qe5 Bf5 Qec3 Be4+
B2q4/1Q2n1Q1/3R3B/1n5k/2QpNp1n/nq6/1QpnR1rN/1R1Kb1RQ w - - 0 1 illegal: No possible last move, all moves rejected
Q2Nn1rk/2nB2R1/rR2N2B/2pR1B2/8/1p1pKb1R/1Qr3n1/rr3BR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 Qa4 b5 Qd1 f5 exf5 b3 d4 c6 Bg5 b4 Bf4 Qb6 Bc1 Qb5 cxb5 Bg7 Bf4 Bh6 Bc1 Bf8 d5 Bh6 d6 Be3 Ba3 Bb6 Bc1 Bc7 dxc7 Kf7 Nf3 Kf8 Ng1 Ke8 Ke2 Kf7 f4 Kg7 a4 h5 g4 d5 b6 e5 b7 b2 f6+ Kh7 f5 b3 a5 c5 g5 d4 f7 h3 f8R d3+ Ke3 h2 g6+ Kg7 f6+ Kh6 a6 h4 g7 Kh7 f7 h3 a7 e4 Nf3 Bd7 c8B Bg4 Na3 b1R Qc2 Nc6 b8R Na5 Nd4 Nf6 g8R Rb2 Rb6 Nc6 Ne6 Nb4 Bd7 Bf3 Nd8 Ne8 Nb5 Na6 Nd4 Nac7 N4e6 Rb1 Rhg1 h1R Qb2 h2 Ra4 Ra1 Rd4 Ra2 R8g2 Rg8 Rg7+ Kh8 Rd5 Ra6 Kf2 Ra1 Bh6 Rc1 Ke3 Rc2 R1g5 Rg1 Rh5 h1R Rh3 Rc8 a8B Rb8 Be2 Ra1 Bf1 Ra6 Bb7 Rba8 Bbc8 Ra1 Ba4 Ra6 Bad7 Nd6 Re8 Rg1 Re7 Nde8 f8Q Rh1 Ref7 Rb1 Rf6 Rba1 Rfg6 Rg1 Kf4 e3 Rgg3 e2 Ke3 Rh1 Rg1 e1N Qd6 Rhh2 Qc6 Rcc1 Qa8 Rcb1 Ng5 Rg2 Bf5 Rh2 Bcd7 Rc2 Nge6 Ng2+
1b6/N1nnN1k1/3p2q1/4npn1/KBbRn3/QnQ3RB/1QpQR1Q1/3R4 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Qg5 b6 Qh6 b7 Qg5 b5 Qd8 d4 h5 Ba3 a5 Bc1 a4 c5 Rh6 Qc2 Rc6 Qb3 Raa6 Qd1 Rab6 cxb6 Rc5 Ra2 Rf5 Ra1 c5 Na3 c4 Nb1 Rc5 dxc5 Be7 Bb2 Bd6 Bc1 Bf8 Kd2 f5 Kc2 Kf7 e4 f3 g4 d6 e5 h3 e6+ Kg7 g5 a3 g6 h2 e7 f2 e8R c3 Kb3 a2 c6 c2 c7 h4 Qd2 h3 Re2 Be6+ Ka4 Kh8 c8Q Nc6 b8Q Qe7 g7+ Kh7 b7 Qf6 b6 Bd5 Nc3 Qg6 Nb5 Bc4 Qa7 Nf6 g8R Nd7 b8Q Be7 b7 Bd8 Nf3 Bc7 Qba8 Nce5 Ba3 Bb8 Rd1 a1N Nh4 Nb3 Rg1 h1N Bb4 h2 Rg4 Ng3 Rd4 h1N Bh3 f1N Qc7 Qe8 Ng6 Ne3 Ne7 Ne4 Rg3 Qg6 Qaa5 Nhf2 Na7 Ng5 Qa6 Be6 Qcc3 Kg7 Qac6 Bc4 Qg2 Bc7 b8Q Nd5 Qbb7 Bb8 Qb6 Nc7 Qaf3 Na1 Qa3 Nb3 Qfc3 Nfe4 Qb5 Nd3 Qe5+ Kf8 Qcb2 Kf7 Qc5 Kg7 Qc6 N3e5 Qc5 Bg8 Qcc3 Bc4
b7/pQ4Qq/2n1Rp1Q/2bkr3/1pn2BpR/1Q2BN1R/1R3n1Q/b4K1N w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 c4 d5 g4 e5 gxh5 exf4 Bh3 Bd7 Be6 Bc8 bxc5 b4 c6 Na6 c5 Rb8 Nc3 Qa5 Nb1 Rb5 axb5 Qd8 Bf5 Bb7 Bd3 Bc8 Bc4 dxc4 d4 Ke7 e4 Ke6 h4 g5 d5+ Ke5 c7 g4 b6 f6 c6 c3 b7 f3 b8B c2 h6 f2+ Kf1 Nc5 h5 Be6 c8Q+ Bd6 h7 Qa5 h6 Qd8 c7 Nb7 Nc3 Be7 d6 Nc5 d7 Na6 Rh3 Bb3 Be3 c1B Rb1 Bf8 Nce2 Bd2 Rb2 Bc4 Qb3 Nc5 Qb7 Ba6 c8R+ Qc7 d8Q Bb5 Qe7+ Ne6 Qg7 Bc6 Ng3 Ng5 Nh1 Ne7 Nf3+ Kd6 Re8 Bc3 Rh4 Rg8 h8R Nh3 h7 Bd4 Qh6 Rg5 e5+ Kc5 e6 Re5 Qg7 Be4 Qh6 Nc6 e7 Bd5 Rg8 Qd7 h8Q Qf5 Bc7 Qh7 Q8g7 Be4 Rh8 Bd5 Ke2 f1N Ke1 Nf2 Ke2 Rg5 Bcf4 Nd2 Ke1 Nc4 Kf1 Nd3 Rb8 Re5 e8Q Be4 Qeh5 Nf2 Re8 Kd5 Re6 Bd6 Ra2 Ba1 Rb2 Bc5 Rh3 Qg8 Qh4 Qf7 Qg3 Qd7 Qh2 Qe7 Qhg5 Qf7 R8h4 Qh5 Q5g6 Qh7 Q6h6 Qg8 Ke1 Qh7 Qbc7 Nb8 Ng1 Bf3 Kf1 Ke4 Bc1 Kd4 Qb6 Bb7 Nf3+ Kd5 Bce3 Ba8 Qbb7+ Nc6
R2nQrqR/B1p1NB1Q/1r1kp1qN/7n/1q2B1B1/K4N2/p1p5/1bN2B2 w - - 0 1 legal: proof: g4 b5 a4 d5 axb5 g5 h4 e6 hxg5 Nh6 c4 dxc4 f4 Kd7 g6 Bg7 g5 Ng8 f5 Ke8 e4 f6 e5 fxe5 f6 e4 fxg7 Qd5 Bh3 Qd4 Bf1 Qd8 d4 Ke7 Kd2 h5 Kc2 a5 b4 c3 Kb3 h4 d5 h3 d6+ Kd7 b6 h2 b7 c2 b5 e3 b6 e2 Ka3 e1Q Nf3 a4 Qd3 Qd1 Nbd2 Na6 b8Q Nf6 g8B Rh4 g7 Rf4 g6 Ne8 b7 Ra7 Bh7 Rc4 g8B Qe7 g7 Nb4 Bf7 Rf4 g8B Ra6 Nb3 Nc6 Be4 Rb6 Bgh7 Ng7 Be3 Nd8 Bhf5 Nh5 Bg4 Qf6 Bd4 Qg6 Nc1 Qd2 Bg1 Ra6 Ba7 Rb6 Qe3 Rf5 Qh6 Qg8 Qh7 Qb4+ Ka2 a3 Qa8 Rd5 Qb8 Kc6 d7 Kd6 Qa8 Re5 b8N Ba6 Nc6 Rf5 Ne7 Bb5 Be8 Rf8 Bf7 Nc6 Qe8 Nd8 Rg1 h1Q Rg2 Rb8 Rh2 Qg1 Rh1 Rb6 Rh3 Nb7 d8N Bc4+ Nb3 Bb5 Bfg6 Ra6 Be3 Qc5 Qhf7 Qb4 Nc1 Ra7 Bg4f5 Ng7 Rh8 Nh5 Qh7 Ra6 Bb6 Qg5 Bg4 Bc6 Ba7 Rb6 Nf7+ Kc5 Bb8 Nd8 Nh6 Kd6 Bf7 Q5g6 Rb1 Ba4 Rb3 Bb5 Rc3 Be2 Rc5 Ba6 Ra5 Be2 Ra8 Bc4+ Ka1 Ba2 Ba7 Bb1 Nb3 a2 Kb2 Qb5 Ka3 Qc4 Nc1 Qb4#
8/2n1qR1Q/qq1QqQ2/3r2R1/QRKRn1n1/BBN1r2q/3N4/bbQ1r1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 e4 a5 g5 h3 b6 c4 b7 f3 b5 a4 g6 f4 b6 f2 g7 h2 Bb2 f3 Qd2 a3 Be2 f1Q Kb4 h4 Qd3 a2 Bc3 f2 Qc2 h3 Qc1 Bf5 Nf3 Nf6 g8Q Ra5 Qg7 Qg1 Bb2 f1R Ba3 c3 Bc4 c2 Qh7 Ng4 Nc3 Re1 Bb3 Qe7 Nd2 Bg7 Rb1 Qe3 Rf1 a1Q Rb2 Bg6 Rf7 h1Q Ra2 Na6+ Kc4+ Nb4 b8R h2 b7 Re8 Rb2 Qhf3 Rc8 h1N Rc5 Na6 b8Q+ Nc7 Qb4 Qh3 e5+ Kd7 d6 Ke6 d7 Nhf2 d8R Ne4 Rb5 Bf6 d5+ Kf5 d6 Kf4 e6 Kg3 d7 Kf2 Rg5 Rd5 Qb6 Kg1 Qd6 Qb6 Rb1 Qf8 e7 Qg7 Qb2 c1Q Qc2 Qd1 Qc1 Qdf3 Rb2 Qf5 Rb1 Qe6 Rb2 Rf8 e8Q Rg8 Rc8 Qf8 d8Q Qfe7 Qa4 Bf5 Qf8 Qa2 Qfg7 Re8 Rd8 Be5 Qf6 Bd4 Nd1 Be5 Rb1 Ba1 Nc3 Nf2 Qad7 Qf8 Qb4 Qed6 Bb2 Rde5 Qdb5 Qaa5 Ba4 Qaa6 Ba3 Qd7 Rb3 Bb1 Rb2 Qdc8 Rd4 Rd5 Qbd6 Re3 Rb4 Qe7 Bc2 Qce6 Bb3 Qaa7 Qbd7 Ne4 Qa4 Qaa6+
2q1n1n1/1R4bR/N1QNn3/1r3RrB/2K3R1/kr4Qb/2Q1Q1qr/bQ3rB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kd6 Ke2 c5 Kd3 a5 g4 f5 e5+ Ke7 g5 h5 d6+ Ke6 g6 Kd5 e6 f3 g7 a4 d7 h3 b6 a3 b5 f2 b7 a2 e7 h4 e8Q f4 b6 h2 Qde2 f3 Nh3 Ne7 g8R Ra5 Rg4 Bg7 Ng5 h3 Ne6 Rb5 Na3 Na6 b8R Nc7 b7 Rh5 Nc4 Rg5 Nd6 Ng8 Qg6 Kc6 Kc4 Ne8 d4 Qc7 Rb1 a1B d8Q Rb3 Bg2 f1Q d5+ Kb6 Qe4 Ka5 Qf6 Ka4 Qc2 f2 Bf3 Qg2 Be3 f1R Bg1 Ka3 Re1 Qd8 Nc7 Be6 Rb1 Qc8 Na6 Rb5 Rb4 Rb1 Ra8 Rb3 b8Q Bd7 Ra7 Be6 Rf7 Bd7 Bd4 Bf5 Rf1 h1R Bg1 h2 Qfe5 Bd7 Qg3 Be6 Rb7 Bf5 Rh4 Be6 Rh7 Bh3 Be3 Rg1 Bh5 h1R Rf5 Rf1 Bg1 Rh2 Ne4 Bh6 d6 Bhg7 d7 Rf2 d8Q Rf1 Kd5 c4+ Nc5 c3 Qb6 Rbb1 Kc4 Rb2 Qc6 Rb3 Qcd3 c2 Nd6 c1N Qdc2 Nd3 Na6 Bad4 Qge1 Ba1 Qeb1 Nf4 Qbc7 Bge5 Qg7 Beb2 Qge5 Ne6 Qg3 Bg7 Qge3 Bad4 Qg3 Bc3 Kd3 Ngf6 Rg4 Ng8 Kc4 Ba1
R4rB1/1Nn1rN2/1K2R1bb/4Q3/nQQq1r1R/B4R1Q/n4Rr1/r1qk1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 a5 e4 f5 g4 c5 b6 h5 b5 f3 Ke3 h3 e5+ Kd7 g5 f2 b7 h4 g6 c4 d6 Ke6 g7 Kd5 e6 h2 e7 c3 e8R h3 b6 a4 d7 a3 Nd2 a2 Ba3 c2 Qg4 c1N Ne4 Ra7 Nd6 Nf6 Nf3 Na6 b8Q Ne4 b7 Nc7 Ne5 Nc5 Re6 Rh4 Be2 f1B g8Q Bg7 Qg3 Rf4 Nef7 Bh6 Bg4 Qf6 d8R Qh4 Rb1 a1R Rb2 Na2 Rf8 Bd7 Qc8 Be8 b8Q Qd8 Nb7 Kc4 d5 Kc3 Rb3+ Kc2 d6 Qf6 d7 Qd8 Nh8 Bg6 Nf7 Qh4 d8R Qf6 Rg1 h1R Be2 h2 Bc4 Qb2 Rd2+ Kc1 Rf2 Kd1 Qh8 Qf6 Qh3 Qh4 Rg3 Rg1 Rb4 h1Q Rgf3 Rg2 Bd5 Qf6 Rd8 Qb2 Qe5 Qg1 Re4 Qc1+ Kd4 N7a6 Na5 Re7 Qb4 Nc7 Rh8 Rfg4 Qa6 f4 Nb7 Rh4 Qac4 Rhg4 Rb3 f3 Ra8 Rf4 Re3 Rf6 Rh4 Rf5 Rc2 f2 Rf3 Rf6 Nfd6 Rf8 Nf7 Bfd3 Re2 f1R+ Ref2 Rd7 Re7 N5a6 Rf5 Bd2 Nh8 Qh1 Re2 Bh6 Ree8 Rg7 Bg8 Qg1+ Re3 Rgf7 Re6 Re7 Nf7 Rff2 Rg3 Bf1 Rc3 Nb8 Kc5 Nd7+ Kc6 Nc5 Kb6 Rf3 Rc2 Qge3 Rf2 Qd4 Rg5 Rf6 Rg3 Rf4 Rgf3 Na4+
k4rB1/b3N1RN/5RRQ/5Nb1/1nb2R2/2brqbqK/1q2N2B/2nQ1rN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 Kg2 Kc7 d4 Kb7 e4 f5 d6 h5 e5 h3+ Kh2 a4 d7 c4 g5 f3 e6 a3 e7 h4 e8Q c3 b6 a2 b5 f4 d5 c2 d6 f2 g6 f3 g7 Qc7 d8R Ra3 Qh5 Bg4 Bc4 f1B Qh6 f2 Bf4 c1B d7 Nc6 Nc3 Nge7 g8N Nf5 Nf6 Ng3 Nh7 Ne2 Bg8 Bc5 Rf8 Bf3 d8N+ Ka8 Rf6 Nb4 Nb7 Qg7 Bc7 Bg5 Nd6 Nc1 Nce2 Rd3 Nf5 Qg6 Rb1 a1B Rb3 Bc3 b7+ Ka7 b8N Ka8 Rb2 Ba7 b6 Qe8 Nc6 Qe3 Bf7 Rf8 Nce7 Nc2 Bg8 Nb4 Ned4 B1e2 Ra2 f1Q Ra6 Qe1 Be5 Bf1 Nde2 Q1d2 Rg6 Qb2 Ra4 Nc6 Rd4 Nb4 Rf4 B1g2 Rd4 Bc6 Nf3 Bd5 Rg1 Bf6 Rgg4 Bc4 Rg7 Bh1 R1g6 Bg5 Bg3 Bg2 Rf4 Bh1 Ne1 Be4 Nf3 Bc6 Kh1 h2 Kg2 h1R b7+ Kb8 Nf6 Rf1 Nh7 h3+ Kh2 B6d5 Ng1 Bf3 Be6 Bc5 Bg8 Ka7 b8R B5d4 Rbb6 Ka8 Rbe6 Bc5 Bh4 Ba7 Kg3 h2 Kh3 Rf2 Bg3 h1Q+ Bh2 Bh5+ Nf3 Qg1 Ref6 Rf1 Neg3 Qgf2 Ng1 Bf3 N3e2 Qg3+
3bRr2/B1NrR2b/n4R1R/R3Q2q/2bbQN1k/1q5B/Bn3K2/4rnBq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 g4 f5 d6 c5 d7 a5 e5 h5 d5 c4 e6 h3 e7 a4 e8B c3 b6 h2 b5 h4 b7 h3 b6 a3 d6 a2 Kf2 c2 Bb2 c1R Ne2 f3 Bd4 f4 Qc2 Ne7 Qe4 Nf5 Nbc3 Be7 Nb5 Rf8 Bf7 Kh4 g5 Re1 g6 Na6 b8Q Ne3 b7 Ra7 g7 Qb6 d8R Bf5 g8R Bh7 d7 Nc4 Rg6 Nb2 Nc7 Qb3 Re8 Bg5 Bg2 Bd8 Rf1 h1Q Re7 h2 Bh3 Qb4 Rf6 Qb3 Rg1 Qb6 Rg5 Qb3 Rd1 a1B Ra5 Nc4 Be3 Bd4 Rc1 Nb2 Rcc6 Qd3 Ba2 Qb3 Rce6 Bg6 Na8 Be8 Rh6+ Bh5 Ref6 Bc7 Bg2 Kg4 d8R Bg6 Rde8 Bd8 Qbe5 Bh7 b8B Rd7 Ba7 Rc1 Qc6 Qhd1 Qce4 h1Q Nc7 Ra1 Bf1 Qh5 Kg1 f2+ Kg2 Kh4 Qd3 f3+ Kh1 Qc1 Nf4 Qc6 Kh2 Re1 Bh3 f1B Bg1 f2 Qf3 Be2 Kg2 f1N Qfd5 Bc4 Qf3 Bc3 Kf2 Qd5 Qd3 Qh1 Qde4 Bd4+
N1B1BnQn/4BbB1/R1NRNN2/qB1Q1n1q/q2b4/2r4b/K1k1b3/3rr3 w - - 0 1 illegal: No possible last move, all moves rejected
bn6/rRb1qbN1/2Qb2k1/7R/q2B1QK1/QRQ1Qr2/B6b/N1R1n1qb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 g4 h5 e4 f5 b4 Kf7 d4 h3 b6 c4 b5 h4 d6 c3 d5 a4 g5 h2 e5 a3 g6+ Kg7 e6 h3 b7 c2 e7 a2 e8Q Nc6 b8Q Qb6 d7 Qa6 d8R Bd6 b6 Ra7 b7 Nb4 Na3 Ne7 Qe1 Nd3 Be3 c1B Ne2 Be6 Rd7 Qa4 Ng3 Rf8 Nc2 Bf7 Nh5+ Kh6 g7 Kg6 Bd4 Nc6 Rb1 a1B Q8e3 Bc3 Be2 Ba5 Na1 Bac7 Qc3 Bd2 Qc8 Nb8 Rbc1 Be1 Bd1 Bg3 Bb3 Ne1+ Ke2 Bd8 Q8c6 Bc7 Ba2 f3+ Kf1 f4 g8Q+ Kh6 Ng7 f2 Ke2 Kg5 Qa3 Kg6 Qec3 f3+ Ke3 Rc8 Qe8 f1Q Qe5 f2 Qf4 Qg1 Ke4 Nc2 Kf3 f1Q+ Kg4 Rf8 Qfe3 Qf6 Re7 Bde5 d6 Ne1 d7 Bed6 d8R Qe5 Red7 Qe7 Rc8 Bb3 Rcd8 Rf3 Rh8 Bf7 Rh5 Qf1 Rg1 h1B Rb1 h2 Rb3 Bg2 Rh1 Qf2 Rg1 h1B Rf1 Na6 b8Q Bh2 Qbb4 Qg1 Qb8 Nc2 Rc1 Ne1 Qbb4 Nb8 Qbc4 Ba5 Rdb7 Bb6 Qf1 Bc7 Qff2 Bg8 Qg3 Bf7 Qgf4 Qe5 Qa6 Rh3 R7b6 Qe7 R6b4 Qf2 Rb6 Ba8 Rb7 Rf3 Qac6 Qg1+
4b1qn/k1Bn1n2/1b1R3B/B3rQnN/3q2Q1/nN1KRq2/3nQ2Q/1Br1B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 e4 f5 b4 a5 g4 c5 b6 a4 b7 Kc7 d6+ Kb6 b5 c4 d7 h3 d5 h2 e5 h4 g5 a3 d6 h3 g6 f3 g7 f4 e6 f2 e7 f3 e8Q c3+ Kd3 c2 Ke4 a2 Ne2 Ra5 Ng3 Ka7 Ne2 Nh6 g8Q Nf7 Rg1 h1N Qg5 h2 Qge5 Ng3+ Kd3 h1Q Nd2 Qhh4 Qf5 Ne4 Rg6 Neg5 Nb3 Rg8 Rb1 a1N Ng3 Nh8 Qee2 Qg4 Bg2 f1N Nh5 f2 Be4 Nd2 Rh6 Qe8 d8B f1Q d7 Bc5 Rd6 Bb6 Bc7 Qf2 d8B Bd7 Qg1 Rg6 Rb2 Qg8 Ra2 Qgg2 Ra3 Be8 Qh2 Qh4 Qhh3 Nd7 Qhg4 Nb1 Be3 Nd2 Bf4 Re6 Bg3 Re5 Be1 Ngf7 Bg5 Nf3 Bh6 N3g5 Bd8 Be3 Bc7 Qf3 Bd8 Ra6 Bda5 Rc6 b8B+ Kb7 Bbc7 Bb6+ Kd2 c1N Bb1 Ka8 Qec4 Nc2 Qe2 Bd4 b6 Bg1 b7+ Ka7 Ra4 Na3 Re4 Bb6 Re3 Rcc5 Na1 Nb3+ Kd3 Nd2 Nb3 Rc1 b8Q+ Ka6 Qg1 Qb4 Qgh2 Qa4 Qc8+ Ka7 Qg4 Nb8 Qce6 Nd7 Qef5 Qd4+
1nQ1KBr1/b1bb1QN1/8/1B2RrRn/3RNq2/1B1bn3/2R3r1/1rr1BB1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 h5 g4 c5 b4 f3 g5 c4 g6 c3 g7 f2 b6 f6 b5 h3 b7 a4 b6 h4 Nf3 h2 Ra2 c2 Bh6 c1R Nc3 a3 Qb3 h3 Rc2 a2 Ng5 a1B Ne6 Ra3 Kf5 Ra7 Kg6 f5 Kf7 f4 e4 f3 Rg1 h1B Rg5 Qf6+ Ke8 h2 Qc4 Ne7 g8B Nf5 Ng7 Ng3 Qa2 Nh5 Qb3 Na6 b8R Qf4 b7 Be6 Bf7 Rg8 e5+ Kc7 d6+ Kc6 Rd8 Nb8 d7 Ra2 d5+ Kc5 d6 Kd4 Rc8 Ke3 d8B Bg2 d7 h1R Qd5 Rg1 Ne4 Bd4 Qc4 Ba7 Ba5 Bgh3 d8R Bhf5 Qc7 Rb2 Rd1 Rg2 Be1 Rbb1 Rd4 Bg6 Rcd8 Bh7 R8d5 Bg6 Bc4 f1R Ra5 f2 Qd7 Bh3 e6 Kf3 e7 Be6 Rae5 Bgf5 Ng3 Bd3 Ne4 Rfg1 Ba6 f1N Bb5 Ne3 Qc7 Bc8 Bb3 Rf1 Qc4 Rff2 Qf7 Be6 Ba6 Rg4 Bac4 Kg2 Bb5 Kh1 Ba6 Nc6 b8Q Rgg2 Qc8 Nb8 Nf6 Bdf5 Bf1 Bd3 Ne4 Rf3 Kd8 Rff2 e8B Rf3 Bb5 Bd6+ Ne8 Rff2 Bf8 Bc7+ Ke7 Qg3 Ng7 Rf5 Ke8 Qh4 Nf6 Qf4 Ne4 Bd7+
R5qk/r3r1Rb/7Q/R3b1B1/rRB1NQ1n/1BN1bBr1/1K2bn2/1B1n2r1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 a5 c4 h5 Kc2 d5 g4 f5 b4 Kf7 e4 Kg7 g6 d3+ Kb2 d4 b6 a4 c5 f3 b7 h4 c6 a3+ Kb3 f4 g5 f2 b5 h3 c7 d2 e5 h2 b6 a2 e6 d3 e7 f3 e8R Nd7 b8R Ra7 b7 Nc5+ Kc3 Rh3 Bg2 f1B Kb2 f2 Bf3 Kh8 Nc3 Bh6 Ne4 Bf5 c8B Rg3 Ne2 Qd5 Qc2 d1R Qd2 Re1 N2c3 Be2 Rg1 f1R Qf4 h1R g7+ Kh7 Re5 Ne7 g8B+ Kh8 g6 Rh4 Qg5 Qd8 Bc4 Qg8 Qd2 Be3 g7+ Kh7 Rb1 Ng6 Ra8 Rf4 b8Q Nh4 Rg2 Rg1 Bd7 Rfg4 Qf8 Bg6 Qf4 Bf5 Ba4 Bg6 Bc2 Bf5 Nd6 Ne4 Ra5 Nf2 Nde4 a1B+ Ka3 Qe8 g8B+ Kh8 Rb4 Bh7 Bb1 Qf8 Bb3 Qb8 Bgc4 Qg8 Na2 Be5 Nac3 Rgg7 Kb2 Rge7 Rab5 Ra4 Rba5 Ra7 Qh6 Rgg7 Rg3 Rge7 Rg7 Rg3 Qf4 Reg1 Qh6 Bb6 Qdf4 Bc5 Be3 d2 Qf7 Bcd4 Bg5 Be3 Qf4 d1N+
4kq1B/1K5B/3bbR1N/Nq1NQ1qR/5bqN/nQ3nRr/Nq6/1q4rR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 g4 a4 b4 f3 d4 h3 g5 f2 g6 c4 g7 f6 b6 c3 b7 h2 d6 a3 Kd5 h4 e4 h3 e5 a2 e6 f5 d7+ Ke7 b5 f4 b6 f3 Bb2 c2 Bd3 c1B Qb3 f1Q Bh7 f2 Nc3 Ra6 Nf3 Qe2 Nh4 Bd2 Rag1 a1Q Na2 f1Q Rg3 Nc6 b8N Na7 b7 Nh6 g8R Qed1 R8g6 Ng4 Rf6 Nb5 Bc3 Ra8 Kc6 Bf4 d5 Na3 Na6 Qfe2 b8Q Qab2 Nc7 Ne5+ Kb6 Qe8 d8N Nf3 Nb7 Qe5 Na5 Qg5 d6+ Kd8 d7 B8d6 Be5 Qf8 Nd5 Qde2 Rhg1 h1Q Bc3 Qhh2 Rh1 Qg1+ Kc6 h2 Bd4 Bc5 Qe5 Bd6 Kb6 Ba6 Kc6 Bc4 Kb7 Rg8 Ndc3 Ke7 d8N Ke8 e7 Be6 Nd5 Qgg2 Nf7 Qb5+ Nb6 Rc8 Nh6 Rc1 Bc3 Rg1 Bd4 Rh8 Bc3 Q5e2 Nd5 Qb5+ Ka7 Kd7 e8R Qh3 Rb8 Qhg4 Rb6 Ke8 Rf5 Qd8 Rh5 Qdg5 Kb7 Rb1 Rhg1 h1Q Rc1 Qhf1 Rd1 Qfd3 Rh1 Rg1 N4f5 Q4h4 Ng8 Kf7 Qd4 Qdd2 Rh6 Qdc1 Qe3 Ke8 Bg6+ Kd7 Bg7 Be7 Qe5 Qhg4 Bf6 Rh7 Bh8 Qcb1 R6h3 Rh4 Ngh6 Bf7 Bh7 Ke8 R3h2 Q5f1 Rf6 Be6 Rhg2 Rh2 Rh3 Qfe2 Rgg3 Bd6 Rh5 Rh3 Nh4 Qb5+
3b2KQ/1q1R3B/R1n2rb1/1q1q1RQ1/1RNNbnN1/q1B4k/1R1N1r1b/3b4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 b4 h5 d4 a5 b6 f5 b5 c5 d6 f4 d5 a4 d7 h3 Ke6 a3 Kf7 h2 e5 c4 b7 c3 e6 h4 e7 h3 e8N a2 b6 c2 d6 Rh5 Nd2 Nf6 Ne2 f2 Nd4+ f3 Bb2 c1Q Bd3 f1B Bc3 Ra6 Bh7 Bd3 Rf1 Nc6 b8R h1Q b7 Nd5 Kg8 Qa3 Qc1 f2 g3 Qe7 d8Q h2 d7 Bg6 Nd6 Rf5 N6c4 Kh3 g4 Nf4 g5 Qed6 Qe8 Be7 d8R Rf6 Qf8 Bg4 Rd7 Bd8 Qg7 Bd1 Qh8 Bd3 g6 Qdd5+ Ne6 Rf7 g7 Bg6 Nd4 Rb6 Ra8 Rb2 Rb1 a1B b8R Rc2 Ra6 Rf6+ Ne6 Qhe4 R1b2 h1B R8b4 Qg2 Re1 f1Q Re5 Qfd3 Rf5 Qb5 Nd4 Qb7 N2f3 Rf2 Qe3 Qe2 Qe7 Qe5 Nfd2 Qeb5 Qe5 Re6 Qf6 Qgd5 Qg5 Be4 Kf8 Re2 g8N Rf2 Nf6 Rd6 Rc2 Bb2 Ng4 Rf6+ Kg7 Ne6+ Kg8 Bc1 Nf1 Bf4 Nfd2 Bh2 Rcb2 Nf4+
2b5/RnNR1q1b/2NQ1rkb/N4N1b/Bn3n2/1bnqBQ2/3r1K2/R2R1R2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 e4 c5 b4 f5 g4 Kf7 b6 h5 d6 h3 d5 a4 d7 h2 d6 h4 b5 h3 e5 a3 e6+ Kg6 b7 a2 e7 c4 e8N c3 b6 c2 g5 f3 Nc7 f2+ Ke2 f4 Nd5 f3+ Ke3 Nc6 b8R Nge7 b7 Rh6 Nc7 Nb4 Bd2 c1N Bb5 f1Q Ba4 f2 Nf3 Ncd3 Nd4 Nf4 Nf5 Ned5+ Kf3 Qc4 Be3 f1B Na3 Bd3 Kf2 Nc3 Rf1 h1B Qf3 Qf7 Nc4 h2 Na5 Bg2 Rad1 h1B Ra1 Ra6 Ra8 Rh2 b8N Bh6 Nbc6 Bc4 Rad1 a1N Ra7 Nb3 Ra1 Nc5 Rad1 Qde8 d8Q Bb3 d7 Nb7 Qe7 Qd5 d8R Qd3 Qd6+ Qe6 Rd7 Bh3+ Kg1 Bg4 Ra1 Rd2 Rad1 Kh5 g6 Qf7 g7 Kg5 Ra1 Bh5 Rad1 Bg2 Ra1 Bh3 Rfd1 B3g4 g8R+ Bg6 Re8 B4h5 Re5 Bh7 Rc5 Ne2+ Kf2 Rb6 Rcc1 Ra6 Qe7+ Kg6 Rf1 Rb6 Rcd1 Ra6 Nb8 Rd6 Nbc6 Rf6 Qd6 Nc3+
q2n3n/R1R2N1Q/2qKnnB1/1N5B/Q5R1/5brr/B2RBknB/1r4br w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 d5 g4 a5 e4 h5 c4 f5 b6 h4 g6 a4 b3 f3 b7 f2 g5 h3 g7 a3 g6 a2 Ne2 f4 Bd2 f3 Nc1 d3 Nc3 d4 Rh2 Nh6 g8Q Ra3 g7 Bg4 Be2 f1Q Nb5 f2 Qh7 Bf3 g8B Qh1 Bf4 f1R Bf7 d2 Bg6 d3 b4+ Kb6 Qa4 d1N Rg2 h2 Rg4 d2 Nd3 Nc3 c5+ Kc6 Ke6 d1N e5 Ne3 Rd1 a1N Rd2 Ncd5 Bg3 Na6 b8R Nf6 Rb7 Nb8 Ra7 Nf7 Bf4 Qg2 Bg3 h1R Bh2 Bg7 Bh5 Qd5+ Ke7 Rg8 e6 Nb3 Bg6 Qc4 Rc7+ Kd5 c6 Rfa1 Ne5+ Nd4 Bh5 Nh8 Nf7 Rag1 Ra7 Rb3 c7 Rgb1 c8B Qc6 Bd7 Rd3 Rc7 Qa8 Bc6+ Kc4 Kd6 Bh6 Bb7+ Nc6 e7 Rg6 e8B Bg7 Re4 Rg3 Rg4 Bh6 Bc8 Rh3 Ra7 Nd8 Bf5 Bg5 Bfg6 Bh4 Bc6 Bf2 Bd7 Bg1 Be6+ Ned5 Na3+ Kc3 b5 Ne3 b6 Rg3 Bd5 N4e6 b7 Rh3 b8R Rg3 Rdb2 Rh3 R2b7 Kd2 Rc7 Ke1 Rb2 Kf2 Nb5 Ra3 Ba2 Rb3 Rd2 Ra3 Rb4 Rab3 Bgd3 Qg6 Rd4 Ng2 Rg4 Qge4 Bc2 Qec6+ Ke7 Bd5 Bf5 Rbg3 Bfg6 Qc4 Kd6 Bf3 Rdd4 Qc2 Rd2 Qcc6+
1QbrqQR1/4rn2/3BrR1B/5Q2/K2Qq1qN/1Qb1q2B/B1nrk2N/7b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 g4 f5 e4 c5 b6 c4+ Ka3 c3 b4 h3 b7 h2 b5 h4 g5 h3 g6 c2 g7 a4 b6 f3 Bg2 f2 Qf1 f4 Nd2 Qe8 Ngf3 Rh7 Nh4 f3 Rg1 Nh6 g8Q Nc6 b8Q+ Rc7 b7 h1Q Qb5 h2 Bh3 Bg7 Nf1 Nf7 Bh6 Nb4 Qh7 c1R Qf5 Rd1 Rb1 Bh8 Rg8 Rd2 Qd3 Qg1 Qb3 h1B Nh2 f1R Rb2 f2 e5+ Ke7 e6 Kd6 e7 Qg4 Rc2 Re1 Rc5 Re6 Rc6+ Kd7 d6 f1Q d5 Qe1 Rb6 Qe3 Ra6 Nc6 Rb6 Nd4 Kb4 a3 Ra6 a2 Ka4 Qf8 e8B+ Kd8 d7 Ke7 Qe4 Kf6 d8Q+ Re7 d6 Nc2 d7 Bg7 Qa5 Bh8 d8Q a1Q+ Kb5 Qac3 Ka4 Qe5 Qed4 Bg7 Bb5 Qe8 Rc6 Bh8 Bc4 Bg7 Qb4 Qee4 Ba2 Qe3 Qb3 Bh8 Bg7+ Kg5 Bh6+ Kh5 Qbc7 Qd5 b8B Be5 Qcb6 Qde4 Bd6 Rb8 Bg7 Ra8 Qb8 Kg5 Bf8+ Kf4 Bh6+ Kg3 Qbc4 Kf2 Qcb3 Rc7 Qe7 Ke2 Qf8 Rd7 Ra6 Raa7 Rb6 Rd8+ Rc6 Rad7 Ra6 Bh8 Qf5 Rde7+ Rc6 Ke1 Be5 Bg7 Qdc4 Rg6 Bc7 Bc3 Qd4 Ke2 Be5 Rgd6 Bg3 R6d7 Rf6 Re6 Bd6 Rde7+
K5Q1/Q6Q/bNn1rRb1/q1n1k1b1/bB3rBR/q4rQN/1Rn5/3Rn2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 h5 g4 c5 b4 f3 g5 c4 g6 c3 g7 f2 b6 f6 b5 h3 b7 a4 b6 h4 Qc2 a3 Nd2 a2 Rb1 a1N Rb2 h2 Nh3 Ne7 g8Q Na6 b8Q+ Qc7 b7 Bh6 e3 Nc6 Be2 f1N Bg4 Bg5 Qa7 Rh6 b8Q Bb7 Qd3 c2 Qh7 Rg6 Qbg8 Rf8 Qb3 Rf7 Qc3 Qa5 Nc4+ Kc7 Nb6 Kd6 Bd2 c1Q Qb3 Nc2 Bb4+ Nc5+ Kf5 Ne1 e4 Qca1 e5+ Ke7 e6 Kd6 e7 Ba6 e8R Q1a3 Re4 Rh6 Rg1 h1B Qc3 Bf3 Rh1 Bd1 Rf4 Rg6 Qg3 Ba4 Bd2 Nd7 Ke4 Ne3 Bc3 N3c2 Rf5+ Ke7 d6+ Ke6 Bb4 Nd3 Kf3 N7c5 d7 Rh6 Rf4+ f5 d5+ Ke5 d8R Re6 d6 Rff6 Rc4+ f4 d7 Rf7 Rf8 Nde1+ Kf2 Rf5 d8R Rff6 Rd1 Rf5 Qg1 f3 Rf6 Rf4 Qg2 Qa2 Qg3 Qa3 Kf1 f2 Ke2 f1R Kd2 Qa1 Kc3 Qc1 Ng1 h3 Rcd4 h2 Nh3 Bb7 Kc4 Rf3 Rh6 Qe3 Rh4 Kf6 Kd5 Qa3 R4d2 Ba6 Rf2 Ree4 Kd6 Re6+ Kc7 Ke5 Rff1 Ne7 Kb8 Nc6+ Ka8 Na1 Rff2 Nac2 Rhf1 h1B Rg1 Bg2 Rh1 Bgf1 Rd6 Bfc4 Rfd2 Bd3 Rd1 Re7 Rg6 Re6 Rf6 Bg6
3B3n/1qqBr1B1/3N2NQ/6Rr/2b2n2/kr6/1bQ1R2b/rbRRqKBR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 g4 Kd6 b4 h5 e4 c5 b6 f5 b5 a5 b7 c4 b6 a4 g5 c3 g6 a3 g7 f3 Qc2 h3 Qb2 f4 Bc4 f2+ Kf1 h4 Ne2 a2 Qb5 c2 Be3 c1B Bb3 h2 Nbc3 h3 Qc4 Ne7 g8R Na6 b8B+ Nc7 b7 Bb2 Rg5 Rh5 Ba4 Bf5 Bd7 Ra7 Rc1 a1R Qa4 Ng6 Qc2 Nh8 e5+ Ke7 e6 Kd6 e7 Bh6 Qb3 Bb1 e8R R1a3 Qc2 Rb3 Re7 Bg7 Re8 Be5 Re7 Ra1 Ba7 Ne6 b8Q+ Qc7 Qf8 Rh7 Qh6 Rg7 Ng1 Rh7 Nf3 Rf7 Nh4 Rh7 Rhg1 h1Q Ng6 h2 Re8 Qf3 Rh1 Re7 Bb6 Qg3 Ba5 Qb7 Bd8 Rg7 Bf6 Re7 Rg1 h1R Bg7 Rh5 Rh1 Kc7 d6+ Kb6 d5+ Ka5 Nb5 Kb4 Bc8 Ka4 d7 Bc7 Nd6 Ka3 d8B Qh2 Ke2 f1B+ Ke1 f3 Bd7 Bc4 Bg1 Rd3 Kf1 f2 Ke2 Nf4+ Kf1 Rf7 Re2 Rb3 Nc8 Re7 d6 Bd5 Bb5 Bc4 d7 Bce5 Nd6 Qg3 Bc7 Qc3 d8R Qa5 Be8 Qc5 Ba5 Qcc7 Bb5 Nh3 Bd7 Bh2 Rd1 Nf4 Rc8 Qd8 Rc6 Qdc8 Bd8 Qcc7 Rcc5 Qbc8 Qd3 Bd5 Rcc1 Q8b7 Qc2 Nd3 Ree5 Bc4 Ke2 f1Q+ Ke3 Qh3+ Ke2 Qg3 Kf1 Nf4+ Re2 Qe1+
k2nbNqb/bqb1qr1R/1Q1r1R2/1n3NB1/R1r3Rr/1BR5/8/1QB2B1K w - - 0 1 illegal: No possible last move
N3B3/2R2R2/K2n1qk1/1Nbr4/4N1n1/rRnQR1B1/QRbbn3/3r1qNb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 Kc4 Kf7 g4 h5 b4 f3 e4 f2 g5 h3 b6 f4 Kb5 c4 e5 f3 e6+ Kg6 e7 a4 e8N h4 b7 c3 d6 h2 d7 c2 d5 h3 d6 a3 Nd2 a2 Nc7 Ne7 Ne4 Na6 b8R Nf5 Bf4 c1Q Qd3 Nh6 Bg3 Qf6 d8R Nf7 d7 Bc5 Re8 Rh5 d8N Bf5 Nc6 Nd6+ Ka5 Qc4 Rc1 a1B Nd4 Bc3 Ndb5 Bd2 Rc2 Ra7 Na8 Qcf7 Bg2 f1R Rb7 f2 Rc7 Rb1 Rb2 f1N Ree7 Qc4 Rf7 Ne3 Bf3 Re1 Bd1 Ng4 Ba4 Rd1 Rb3 Rh8 Rb2 Rd8 Rb3 Kh5 g6 Kh6 g7 Kg6 Ne2 Qc1 Re1 h1N Ng1 h2 Re3 Qca1 Nbc3 Rd7 b5 Qb1 b6 Qc1 Bh4 Ng3 b7 h1B b8R Ne2 R8b4 Rd8 Be8 Rd7 Nb5 Qc4 Ng5 Qf4 Bg3 Qf1 Qc4 Bc2 Ne4 Re7 Qd3 Re5 Rb2 Rd5 Rb3 Bd4 Rb2 Nc5+ Kb6 Raa1 R4b3 Na4+ Ka6 Ra3 g8Q+ Kh6 Qf8+ Kg6 Qe7 Bc5 Qe6 Re5 Rb4 Rg5 Qa2 Rd5 R4b3 Nac3+
nb1k1K1n/3Nb3/R6N/r1R1RB1Q/1bnR4/2Bq1r1R/3r2b1/N2nNq1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 h3 e4 f3 d4 f4 b4 c4 d6 c3 g5 h2 b6 c2 d7+ Ke7 d5 a4 d6+ Kf7 b5 a3 b7 a2 b6 f2 Bd3 f1Q Nd2 h4 Nb3 h3 Nf3 Ne7 Bd2 c1B Ne1 f3 Bc3 f2 Qh5+ Ng6+ Kd5 Rh6 e5 Bf4 Bf5 Na6 b8R Be7 b7 Nc7+ Kc6 Kf8 e6 Nh8 g6 Ra5 Ra8 Bd2 Rc1 a1B Ra6 Na8 b8N Rh7 Rc2 Rf7 Rc1 Bb2 Na1 Ba3 Rc2 Bf4 Rc1 Bb4 Rc2 Qg1 Rc1 f1N g7+ Kg8 Rc2 Nd2 Rc1 Qf1 Rc2 Bf6 e7 Nc4 e8R+ Rf8 Re5 Be7 Qh4 Kf7 g8N Bg3 Qg4 Bf4 Nh6+ Kf6 Qh5 Bg3 Rg1 h1N Rc1 Bf4 Rg3 h2 Rh3 Nf2 Rc2 h1R Rc1 Qe8 Rc2 Qg6 d8R Bb7+ Kd7 Rf7 Ke8 Rh2 Rc1 Nd1 d7+ Bed6 Rc2 Rd2 Rc1 Bg2 Rc2 Re7+ Kf8 Qh7 Rc8 Qg6 d8Q Qg3 Qc7 Qgd3 Qc6 Bg5 Rd8 Re6+ Kg8 Ke7 Nd7 Bb8 Qd5 Bh1 Qg2 Bh4 Qh2 Bg2 Qh1 Bg5 Nb6 Bh4 Rd4 Bf6 Nd7 Kd8 Rc1 Re7 Kf8 Bh4 Rc5 Re3 Rb1 Rf3 Rb2 Rdf2 Re2 Bf6 Re7 Rd2 Ree5 Be7+
2Q1nQ1N/1r6/2B2rBq/qR2b1n1/B3rkN1/2nbRb2/bK1Br2R/3RB3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 e4 a5 g5 h3 b6 c4 b7 f3 b5 a4 g6 f4 b6 f2 g7 h2 Na3 h4 Nf3 h3 Bd2 Ra7 Kb2 Nf6 g8B Nbd7 b8R Nh7 b7 Qa5 Bg2 f1B Nc2 Bg7 Ng5 f3 Bf7 f2 Qc1 Ndf6 Ne3 Re8 Ra3 Bd3 Ng4 f1R Bg6 Be6 Rb3 Re7 Qc2 Ne8 e5+ Kd7 d6 Rf6 Rd1 h1B d5 h2 Nf7 Ng5 Nh8 Bf7 B2e4 Bf3 Ra8 h1N b8R Ng3 R8b5 Rb7 Ra6 Ne2 e6+ Kc8 d7+ Kc7 Ra7 Kd6 d8B Nc3 Bb6 Bg8 Bf2 Bf7 Bfe1 a3+ Kc1 a2 Kb2 a1R Ra3 Rec7 e7 Rc6 Rab3 Ra4 Ra3 Re6 Ra8 Be5 Rc8 Ng7 e8B Ra6 Bc6 Ne8 Rc7 Bg8 Rh7 Rf6 Rh2 Rab6 Rc1 Re7 Rd1 Rbb7 Bd7 Na2+ Bc3 Bg3 Rh1 Bde2 Qd2 Ne6 Qh6 Bh2 Bc2 Bf1 Bcd2 c3+ Ka1 Raf4 Ba4 c2 Be3 Rc4 Rad3 Nc3 Kb2 B1e2 Qf8 c1Q+ Kb3 Bf4 Rh2 Bg3 Bh6 Qg5 Kb2 Bf4 Rd4 Bd3 Re4 Qh4 Bg5 Qh6 Ree2 Bg3 Bgd2 Ng5 Re5 Ng7 Qc8 Ne8 Bc6 Bf7 Rf5 Re3 Re5 Re2 Re3 Re4 Rb4 Kc5 d6 Ba2 Rb6 Kd4 Rb5 Rfe6 d7 Bc7 Qd8 Bd6 Qe7 Rf6 Qf8 Bc7 d8Q+ Bd6 Qc8 Bg3 Bd5 Bc7 Nf2 Ke5 Ng4+ Kf4 Bc6 Be5
B1n1bn1Q/bbN5/1q3q1B/1B3rR1/1B1kN1N1/R1b4r/B5K1/1nn1Nq1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 a5 e4 f5 g4 c5 b6 h5 b5 f3 b7 a4 g5 a3 g6 f4 b6 h3 g7 a2 Bg2 h4 Nc3 Nd7 b8Q+ Qc7 b7 Ne7 g8B h2 Kf1 f2 Nf3 h3 Ne1 c4 Rg1 h1Q Ba3+ Nc5 Bb4 h2 Qc1 Rh3 e5+ Kd7 e6+ Kd6 Be4 Qf3 Rg5 Bd7 Qb1 Nc8 e7 h1B e8B Ba4 Bb5 Ra5 Qa8 Qd8 b8N Qb6 Nd7 Bh6 Nf6 Bg7 Ba6 Be8 Ng4 Be5 Bb5 Bg7 Ne2 c3 Ng3 c2 Qd1 Qc3 Bf3 c1N Ne4+ Kc7 Be6 Nd7 Bg2 Nf8 d6+ Kd8 d7 Kc7 d5 Qf6 d8N Bh8 Rb1 a1B Rb3 Bd4 Ra3 Be3 Nc5 Kd6 Bg8 Qf5 Nde6 Bc3 Nc7 Qf6 Qd4 Qf7 Qh8 Qf6 Bf3 Bed4 Bfe2 Be4 Bf3 Be3 Kg2 f1N Be6 Nd2 Bg8 Nb1 Bf7 Bf5 Qb7 Bfd7 Qa8 Bc6 Ne4+ Kd7 d6 Bed4 Bbc4 Rf5 Bb5 Be3 Ba2 Bc5 Nd5 Ke6 d7 Bb7 d8B Bf2 Bde7 Be3 Bec5 Bf2 Be3 Bg1 Nh2 Ke5 Bd2 Bc5 Nc7 Kd4 Ng4 Qd6 Nef2 Ba7 Bfd5 Qb6 Ne4 Re3 Qh1 Rh3 Qb8 Ba6 Ba8 f3+ Kg1 f2+ Kg2 Bb7 Bf4 Nd6 Qd8 Qe5 Qf6 Nc8 Qh8 Qg7 Rh5 Qe5 Bh6 Qef6 Rg5 f1Q+
3N1N2/qQ3r1B/b4b1k/1B4r1/2KNrQ1B/n1n1b1n1/1Rr2Bq1/b1NB2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 Kg7 g4 h5 b6 a4 g5 f3 g6 a3 e5 f4 e6 f2 b5 h3 e7 a2 e8B c4 b7 h4 d6 f3 d7 h2 d5 h3 d6 Nh6 b6 Nf5 Qd2 Rh5 Bb2 Ra4 Ba3 Qe7 d8Q Nd7 b8N Ba6 b7 Nf6 d7 Rg5 Qc8 Kh6 d8N Ng3 Be2 f1N g7 f2 g8B Bg7 Qf4 Nd2 Bd1 f1R Bh7 Qc7 Kd4 c3+ Bb4 c2 Bb5 c1B Nc3 Nb1 Nf3 Rf2 Nd7 Rc2 b8B Qa7+ Kc4 Nd5 Nf8 Bf6 Qb7 Be3 Rg1 h1Q Nd4 h2 Bc7 Qe4 Bb6 h1R Rg2 Rh2 Rg1 Rcf2 Ne2 Ndc3 Nc1 Rf3 Rg2 Rf1 Rb2 Rc2 Qfc7 Qg2 Qe5 Ra5 Be7 Rf4 Qec7 Re4 Qd6 Rg7 Qb4 Rf7 Bbc5 Bg7 Bh4 Bf6 Bb6 Rf4 Qd6 Re4 Qf4+ Bg5 Bg4 Nge2 Nd3 Ng3 Be2 Bc1 Bh5 Re8 N4e6 Ree7 Bg1 Be3 Nd4 Re4 Bf2 Nd2+ Kb4 Ra3 Bd7 Ra5 Rg1 a1B Nc1 Ndb1 Bd1 Raf5 Bb5 Rc5 Qf3 Bf6 Qf4+ Rg5 Kc4 Na3+
Qn2B1R1/q1nR1n2/q1r3pK/Br1bN2R/2r1kbB1/2R5/q6B/1bRQ1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 b4 Ke5 h4 a5 b6 f5 d6 c5 b5 f3 Kg3 g6 b7 f2 b6 a4 d7 a3 h5 c4 h6 a2 h7 c3 Bh3 Qc7 Kh4 f1Q Kg5 f4 d8R g3 Rd7 c2 Bg4 g2 Rh3 Nf6 Rc3 Bd6 Kh6 f3 d3 f2 Bf4+ Kd4 e5 c1R e6 Ne8 e7 Ra5 Nd2 Rb5 Bh2 Kd5 Rb1 a1Q d4 Qa2 Ngf3 g1N Ne5 Nf3 Ra1 Rg8 h8R Ng5 Rb1 Qfc4 Nf1 Ke4 d5 Q7c5 Ra1 Nc7 e8B Rf8 Rg8 Rf6 Rb1 Rc2 Rc1 Qca3 Rh8 Qa7 Rg8 Q2a6 Rh8 Qca2 Rhh7 Nc6 b8Q Bb7 Qa8 Nb8 Rh8 Bc6 b7 Rf4 Nc4 Be5 d6 Bd5 Rhh7 Rf6 Rh8 Bf4 Ne5 Rcb2 Rhh7 R2b4 Rh8 Rc4 Rg8 Nc6 b8R Re6 Rb7 Nb8 Rh7 Rf6 d7 Rfb6 d8B Rbc6 Ne3 f1B Rd7 Rb1 Rb5 Bd3 Nf1 Rb3 Rc5 Bb1 Ra5 Nce6 Rc5 Rb5 Ba5 Nc7 Rh3 Rd4 R5c3 Rdc4 Rh5 Nf7+
2Q1q1bn/8/BQ1QN1pR/2R1K1n1/Rr1N2b1/2bRBR1n/1r2br2/Q2bk3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 h4 d5+ Ke5 a5 e4+ d3 c3 f5 b6 a4 b5 g6 h6 a3 h7 a2 b7 d4 h5 f3 b6 f4 h6 f2 Rh5 f3 Bg5 Nf6 Ne2 d2 Nf4+ d3 Ne6 Qe8 Be3 Bg7 Rf5 Rf8 h8R Bd7 h7 Ra4 Qc2 d1B Nd2+ Kb5 c4+ Kb4 Qb1+ Kc3 c5 Rb4 Nb3 d2 Ba6 f1B c6 f2 c7 Bc4 c8R f1B Rc5 Bfe2 Rf3 Rf7 Nd4 Nc6+ Kd6 Ne5 b8Q Rf8 b7 Rb2 Qc8 Nf7+ Kc7 Rb4 e5 Ne4 b8Q Neg5 Qb6 Rb2 Qd8 Bc8 Qdd6 Bf6 Rg8 Nh8 Rg7 Rb4 Rd7 Rf7 Nf8 Bg7 e6 Rf5 e7 Bf6 Rb5 Bg8 Nfe6 Rb2 Ra5 Rfb5 Kc6 R5b4 Kd5 Bg7 Qf5 Bf6 Qfe5 Bg7 Ra4 Bf6 Rb1 a1R Rd8 Raa2 Rc1+ Bc2 Rd7 d1N Rd8 Nf2 Rd7 Nhf7 h8R Nfh3 Rh6 Nh8 Rd8 Bg7 Qf6 Bd7 Ke5 Bc8 Nf8 Bg4 Nfe6 Qf7 e8Q Qf8 Bf2+ Kd2 Bg1 Bb3 Rc5 Ke1 Be3 Bbd1 Rd7 Qf7 Qc8 Qe8 Rc3 Bb5 Rdc7 Rf2 R7c5 Bbe2 Rd3 Rab2 Qd5 Bf8 Qa2 Be7 Qa1 Bd8 Qd6 Ba5 Qb6 Rb5 Qfd8 Bc3 Qdd6 R5b4
K1R1B2Q/BrB1q1b1/1rnN1N2/2r5/2n3b1/2r2R1B/2QbkpqR/4BRr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 a5 g6 a4 g7 a3 b6 h3 d6 h2 d7 a2 b5 f3 d5 f2 d6 f6 b7 h4 b6 h3 Nd2+ Kc3 Kd5 c4 e4 f5 e5 f4 e6 f3 e7 Ra3 e8B Nc6 b8R Rh6 b7 Ne5 Ne2+ Kd3 Nf4+ Ke3 Qc2 c3 Nh5 Ne7+ Kc5 Nc4 g8Q Nc6 Qh8 Bg7 Nf6 Qe7 d8R Bg4 Rdc8 Rb3 Rb1 a1B Ra8 Rb6 b8B Rb7 Ra3 Rg6 Bg2 f1Q Ba7 f2 Rab3 Ke2 Nde4+ Ke1 Bd2+ Ke2 Kd5 Bb2 d7 Bc1 Be1+ Bd2 d8B Qg1 Qb2 c2 Rf3 c1R Nd6 Rc3 Bc7 Qf1 Qc2 Rh6 Rg1 h1R Rb4 h2 Bh3 Qg2 Rf1 Rg1 Kc5 Nb6+ Kb5 h1R Ka6 Rg6 Rb5 Nc4 Rh5 Rb5 Rh6 Rbg5 Kb7 Rc5 Nfe4 Re6 Nf6 Rh2 Nf5 Rd6 Ka8 Rd7 Nd6 Rhh1 Bcb8 Rb7 Bc7 Bh5 Be6 Rh4 Bf5 Nb2 Nf7 Rhb4 Nd6 R4b6 Rh7 Nc4 Be6 Bg4 Rh2 Bh5 Bh3 Bg4
5b1q/1nq1B1R1/NkB3B1/1Bq1rq1n/q1Q5/r2p1N1R/4R1bK/RQ1R1r2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 a5 f4 h5 Kf2 d5 c4 Kd7 g4 Kc7 Kg2 e5 c5 h3+ Kh2 e4 f6 e3 g5 e2 b6+ Kb7 g6 e1R g7 a4 f7 h4 f5 a3 b5 d3 f6 a2 Qg4 d2 Ba3 d1Q Nd2 d4 Ngf3 Re6 Nb3 Ne7 g8B Re4 Bh7 Qb1 Bg6 Na6 c6+ Kb8 b7 Kc7 b8R Nc5 Bb4 Nb7 Nc5 Nd5 Na6+ Kb6 c7 Re5 Be7 Nf4 Be2 Qd3 Rhd1 Nh5 Qe4 Bf5 c8B Qc7 Bd7 Qdc3 Qg4 Q3c5 Bc6 Be4 Re8 Ra7 Bc4 d3 Qe6 Bg7 Rg8 Bf8 Rg7 Rh6 Nb8 Ra3 Na6 Ka5 b6 Rh7 Ng1 Bg2 B4b5 Rh6 Qc4 Rh7 Rab1 a1Q Nf3 Qa2 Rb2 Qb3 Re2 Qa4 Ra1 Rh6 Bh7 Rg6 Rd1 Rgg5 Bg6 Rgf5 Ra1 Nd8 b7 Kb6 b8Q+ Nb7 Qd8 Rf4 Qdd4 Rff5 Qb2 Rf4 Qb1 Rff5 Ng5 Rf1 Nf3 Rc1 Nd2 Nf4 Rh7 Bh6 f8R Rg5 f7 Re5 Rfh8 Rd1 f8R Re1 Rf6 Bf8 Rg7 Rd1 Nb3 Re1 Nd4 Rd1 Re1 Rc1 Kg1 h2+ Kf2 h1Q Rf1 h3 Kg3 Qg1 Re1 Qf1 Re2 h2 Rf5 h1Q Rfh5 Qhg1 Rh1 Qe3+ Kh2 Qff3 Rhh7 Qh5+ Bh4 Qe4 Nf3 Qef5 Rh8 Qh7 Rf1 Qg8 Be7 Rd1 Rh5 Qh8 Rh3 Nh5 Rg1 Rf1 Rh1 Rf2 Rd1 Rf1
1Q4r1/B1Q1KQ2/3r4/Nq1n1QRR/1Rbpb3/kB2qR2/1q4q1/nq1Qb2N w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 d5 c4 Kd7 b4 Kd6 f4 e5 g4 h5 c5+ Ke7 c6 Kd6 g5 a4 b6 h3 c7 a3 f6 a2 g6 h4 f7 h2 f5 h3 b7 Be6 c8Q Qa5 g7 Nc6 b8R Nge7 g8Q Ra6 b5 Kc5 f6 Kb4 b6 Qa4 b7 Na5 Qd7 Rd6 Be3 Nb3 Nd2 Qb5+ Nc4 Bg7 Qge8 Rg8 f8R Bf7 Rc1 a1Q Qc7 Qb2 Ne2 Na1 Ng3 Bh8 Rg1 h1Q Qec8 h2 Qf5 Qhg2 Nh1 Be6 f7 Bf6 Rc3 Bh4 Rfd8 Be1 f8Q Bh4 Q8f7 Be1 Ng3 h1B Be2 Qc5 Na5 Qc6 Rc5 Ka3 Rf8 Qa4 Qd2 Qd7 Bd1 Qc6 Bb3 Qd7 Bf2 e4+ Ke2 d3+ Ke3 Qc6 Kf4 e3 Qd1 e2 Bd4 d2 Ke5 Qb5 Kf6 Qh2 Rg2 Qg1 Rh2 Be4 Rh5 Qf2 Nh1 Qg2 Qb1 d1Q Qc2 Qdb1 Qd1 Ng6 Rg5 Nf4 Ke7 Bd2 Rh5 e1Q Rg5 Qe3 Rh5 Qb4 Rb5 Qa4 Ba7 d4 Rb4 Qc6 Ra8 Bc4 b8Q Rg3 Rg8 Qb5 Rgg5 Rg4 Qbb6 Bc3 Rf8 Be1 Qbb8 Rh4 Rg3 Rg4 Rf3 Rg8 Rg5 Rgg6 Rh8 Rg8 Rhh5 Nd5+
R1K2r1q/1Q3Nrk/NR3bNq/Q5B1/3p1r2/2n3n1/2R1Bn1R/nb1n1NN1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Kg4 a5 f4 e5 b4 d5 c4 e4 b6 d3 b7 h6 b5 d2 c5 h3 b6 d4 c6 a4 c7 h2 Be2 a3 Qb3 d1N Nd2 a2 Nf1 Be6 c8R e3 Rc2 Nc6 b8R Bc4 f6+ Kh7 Kf5 h5 g4 h4 b7 h3 g5 Ra7 f7 Bd3+ Ke6 Nce7 f5 Nh6 f6 Nd5 Qb4 Qb6+ Kd7 Be7 f8Q N5c3 f7 Ng4 Qd8 Rf8 Kc8 Ngf2 Ra8 Qh6 b8N Be4 Rb1 a1N Na6 Rb7 Qa5 Rd7 Qe8 Bd8 Rb6 Rb7 Qd7 Bg6 Ra2 Bb1 Rc2 Ra7 Qdb5 Re7 Qd5 Re4 Qb7 Rf4 Bg4 e2 g6+ Kg7 Bd2 e1R Be2 Kh8 g7+ Kh7 Ng3 Rf1 g8N Rg4 Bg5 Rf4 Nf3 Rg1 Nf1 Rg2 Rg1 Rgg4 Rg2 h1N Rh2 Rg3 Ng1 Rg2 Bf6 Rg7 Bg5 Ng3 Nf6+ Kh8 Ne4 Kh7 Nd6 Nd3 Rf2 h2 Rg2 h1Q Rf2 Re8 Rh2 N3f2 f8N+ Kh8 Ng6+ Kh7 Nf7 Rf8 Ne3 Qd5 Nfe5 Qg8 Nf1 Qh8 Nf7 Bf6+
7N/rn2bN2/kN1r2Q1/4np2/1BqRq2n/1NK5/1nB3R1/Nr1BBnQb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 e4 f5 b4 a5 g4 c5 b6 a4 b7 Kc7 d6+ Kb6 b5 c4 d7 h3 d5 h2 e5 h4 g5 a3 d6 h3 g6 f3 g7 a2 e6 f2 e7 Qc7 d8N Nf6 e8B Qc6 g8Q Ra3 d7 Nh7 Nf7 Qc5 d8N Ra5 Nf3 Na6 b8N Ng5 Nd4 Be7 Rg1 h1Q Bd3 f1N+ Kc3 h2 Nd2 Qe4 Rg2 h1N Bc2 Nf3 Ba3 Nh4 N4b3 Bb7 Bb4 Rh6 Nh8 Rd6 Qg6 Nf2 Ndf7 Ng4 Nd7+ Ka7 Qc1 Ne5 Nb6 Ba8 Rb1 a1R Rb2 Rb1 Na1 Qcc6 Ndb3 Nc5 Rd2 Kb7 Rd4 Ra7 Qe3 Qc7 Qeg1 Qc8 Bd1 Qe6 Rg2 Q6d5 Na4 Qe6 b6 Ka6 b7 Qc8 b8B Nb7 Ba3 Qc5 Nb6 Qcd5 Kb4 c3 Ba4 c2 Kc3 c1N Bb4 Ncd3 Bc7 Nb2 Bd8 Bf8 Bg5 Qb5 Bd2 Be7 Be1 Nc5 Rg4 Qee2 Nc1 Bh1 Bac2 Nb7 Ncb3 Qe4 Rg2 Qc4+
5N2/3b3r/BQ1R2K1/pQQ1r2Q/BB1N2n1/2r2bn1/2RbQq1r/1k1B2qr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 a5 g6 f6 g7 h3 b6 h4 b5 f3 b7 f2 b6 h2 d6 h3 d7 Na6 Kf5 Nb8 e4+ Kb4 e5 c4 e6 c3 d5 c2 d6 Kb3 e7 Nc6 b8Q Qc7 e8B Nd8 b7 Rh7 Kg6 f5 Qa7 f4 b8Q+ Qb6 Nc3 f3 Ne4 Nf7 d8Q Nf6 g8B Nh5 Ba3 Bh6 Ba6 f1B Nf6 f2 d7 Bd2 Nf3 Ng3 Qe7 Be2 d8Q f1Q Ra2 Bd7 Bb4 Qbf2 Qb5 Q1g1 Qdb6 Rc8 Qee5 Rc5 Qh5 Re5 Qe1 Bd1 Qee2 c1R Q6c5 Rc4 Rc2 Nh6 Qab6 Ng4 Bgf7 Bh6 Bd5 Bd2 Bdb7 Rc3 Bc6 Rf7 Nh7 Rfe7 Nf8 Rh7 Rc1 Ka2 Nd4 Kb2 Rc2+ Kb1 Bd5 Qge1 Rg1 h1R Bb3 Rh2 Rf1 Qg1 Rf6 Qef1 Rd6 Qff2 Qe3 Bf3 Qee2 Rg2 Ba4 h2 Bf7 h1R Bfb3 Ka1 Rc1+ Kb2 Bd1 Rgh2 Rc2+ Kb1
1QQ3r1/2N1R1n1/QB2p1b1/qRKQ4/1nn1BqnR/Q1N3n1/3b3R/4kr1r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 a5 f4 c6 g4 a4 b6 e3 b7 e2 b5 e1R f5 a3 g5 h3 f6 h2 f7 a2 g6 h4 b6 h3 g7 Nf6 g8Q Na6 b8R Nb4 b7 Ne8 Qa4 Bf5 Nf3 e6 Nc3 Ng7 Bg2 Bg6 Qa6 Rf1 d3 Qc7 Be3 Qa5 Rb1 a1Q Re8 Q1a4 Re7 Rh5 Kc4 Rb8 Nd4 Ke5 d6 c5 Bg1 Kf4 Ndb5 Kg3 d4 Rc8 b8Q Rh8 Ra7 Be7 f8Q Bg5 d5 Bd2 Qe7 Rh6 Qh8 Rg8 Nc7 Rh5 d7 Rh6 Be3 Rh5 Bg5 Kf2 d8Q Rh6 Rb2 Ke1 d6 Rh7 d7 Rh5 Rg1 h1N Be4 h2 Rg4 Nf2 Rh4 h1N Be3 Ng3 Rb7 Rh6 Rb5 Ng4 Qdc8 Rh5 d8R Rf2 Qed7 Bc1 Qh6 Qd1 Rh3 Qd2 Ne2 Rf1 Re8 Qd6 Qg5 Qf4 Qd3 Rhh8 Qa3 Rh4 Kc3 c4 Kd4 c3 Re7 c2 Qd5 Rh5 Bg1 Be3+ Kc4 c1N Nc3 Ncd3 Rc2 Bc1 Bb6 Nb2+ Kc5 Nc4 Rh1 Rh2 Rg2 Bd2 Rf2 Rg2 Rh4 Rgg1 Rfh2 Rh1
2n1B1b1/k2rb1Bp/1r2N2q/Bb2nK1Q/R2N3R/nNB1Q1n1/8/1B1N1q1n w - - 0 1 illegal: No possible last move
1b1BB1b1/pr1Q2RK/bn2R1n1/8/3NRR1B/1n1b1NR1/1kqq1rb1/3Q3B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 g4 c5 d4 h5 g5 f3 d6 f2 d5 h3 g6 h2 d7 f6 Kf5 h4 g7 h3 Kg6 f5 b6 f4 b7 f3 d6 Qb6 d8Q Be6 d7 Bd6 b5 Rh7 Na3+ Kc3 e4 c4 e5 Qc5 Bg2 f1B b6 f2 Bg5 Kb2 Nc2 c3 Nf3 Ba6 Ncd4 f1B Ra3 c2 Bh4 c1N Qc8 Ba2 d8B Nb3 e6 Nd7 e7 Bb8 e8B Qd5 Rg1 h1B Ra4 h2 Qc6 Bfb5 Re1 Qc5 Re6 Qc2+ Re4 Bd3 Rc4 Ngf6 g8R Ng4 Rg7 Qd2 Qc7 Qc2 Rc6 Qd2 Re6 Nge5+ Kf5 Ng6 Qd6 Bc7 b8R Qc2 b7 Nb6 Rc8 Bb8 Rc3 Qd2 Qd7 Qc2 Bf1 Bg2 Kf6 h1Q Kf7 Qh3 Kg8 Qh2 Be2 Bc7 b8R Qd2 Rc8 Bb8 R8c4 Qc2 Rb4 Qf4 Bf1 Qfd2 Rf4 Rh5 Rfe4 Rf5 Kh7 Rf6 Nh2 Rf2 Nhf3 Be5 Ra4 Rb8 Rac4 Rb7 Rb4 Bh3 Bg2 Bb8 Bh1 Bg2 Rb5 Nh8 Rf5 Ng6 Rff4 Nc5 Ref6 Bf7 Rfe6 Nb3 Ne5 Bdb5 Rg3 Bd3 Nef3 Bg8+
N4bR1/N7/Br1R3b/b3QN1b/n1Kr1qq1/1QB1Bqr1/1p1NB3/1n3N1k w - - 0 1 illegal: No possible last move, all moves rejected
4n3/4QQqn/5brn/2KB1k2/r5Rq/1QR1p1q1/BNbQN1n1/Br1B3B w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 a5 c4 d5 b4 h5 g6 d3 Kc3 e3 Kd4 a4 f5+ Kf6 b6 h4 g5+ Kg7 b5 a3 b7 e2 b6 e1Q c5 d2 c6 a2 c7 h3 Ne2 h2 Bb2 Qg3 Kc5+ d4 Rg1 h1R Na3 R8h6 Nc4 Nf6 Rc1 a1Q Bg2 d3 Rc3 Ne8 Qe1 d1N Qd2 Be6 c8B Nf2 Bd7 Ra3 Ba4 Ng4 Bd1 Ra4 Be4 Bg8 Rg2 Bh7 f6+ Kg8 g7 Kf7 g6+ Ke6 Bc6 Kf5 g8B Bg7 f7 e5 f8Q+ Bf6 g7 e4 Bgd5 Rg6 g8B Nh6 Qf7 Rf1 Bc2 Rb1 Bd1 Qf3 Rg4 Nd7+ Kb5 Qf2 b8Q Nf8 b7 Qg3 Qd6 Qe7 b8Q Qd8 Qe1 d2 Kc5 Qe7 Qb3 Qd8 Bc2 d1N Qde7 Ne3 Bd1 Ng2 Qd2 e3 Ba8 Qh4 Bac6 Qb8 Ba8 Qbg3 Bac6 Qa2 Ba1 Qc2 Nb2 Qe4 Qbb7 Qe6 Ba2 Qd7 Qfb3 Qdc7 Bd5 Qd7 Qd8 Qg7 Qde7 Bg8 Qa7 Nh7 Ba8 Be6 Qf7 Bc8 Qae7 Ba6 Bab7 Bd3 Bbc6 Bc2 Bb7 Nf4 Bh1 Ng2 Bf3 Nf8 Bd5 Nh7
1Qbq2Bn/2N2Q1n/2r1rB2/3N1nQq/1b1R1K1B/1kpB2Q1/1q4n1/1BR4r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 g4 Kb4 d4 f5 d6 c5 g5 a5 b6 h5 d5 h3 g6 h2 d7 h4 e5 a4 b7 c4 d6 a3 g7 h3 e6 c3 e7 a2 e8B Qh4 d8B Ra6 d7 Nh6 g8B Rc6 Ne2 Nf7 Na3 Rhh6 Qd5 Rhe6 Nb5 Nh8 Bf6 Qg5 d8Q Nd7 Rg1 h1R b8Q h2 Rg4 Bd6 b3 Nf8 Bg6 Nh7 Be3 Be7 Rc1 a1Q Bf2 Qb2 Nc7+ Ka3 Qe8 Bb4 Qf7 Ka2 Bh4 Qh5 Kf2 f3 Kg3 f2 Rd4 Qg5+ Kf3 f4 Bb1+ Ka3 Qe5 Qh5+ Ke4 f3 Nf4 Qg5 Be2 f1N Nfd5 f2 Bed3 Ng3+ Kf3 Qh5+ Kf4 f1N Qf5 Ne3 Qg5 Bf8 b4 Kb3 b5 Ngf5 b6 Bb4 Qf8 Qe8 b7 Qd8 Qfg7 Rd1 Qa7 h1Q b8Q Qh3 Qg3 Rh1 Q7g5 Qhh2 Qc5 Qhe2 Qe7 Qh5 Qf7 Ng2+
1nrb1qR1/1bNNR1R1/2n1n2K/5b1N/rQ2p1bk/QR1B3r/5R2/3N2Bq w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 a5 g4 c5 d4 h5 b4 c4 d6 e6 g5 e3 b6 h3 d7 h2 b7 e2 d5 e1R b5 h4 d6 a4 b6 c3 Bd3+ Kf7 g6+ Kf6 g7 c2 Ra3 h3 Ne2 Rg1 Rb3 a3 Nbc3 a2 Ng3 a1Q Nh5+ Kf7 Qf3 Qb2 Be3 c1N Nd1 Ne7 g8R Rg3 Rg1 h1B Bc5 Qe8 d8R h2 d7 Qb1 Bd4 Rh3 Kg5+ Nf5 Qg3 e5 f4 Ne7 f5 Nec6 f6 Ra4 Re1 Bg7 Bg1 Qf8 Qf3 Ke6 f7 Ne2 Kg6 Bh6 Rg7 Bg5 Re8+ Be7 d8Q Rg8 Kh6 Nf4 Qd4 Bd7 Rc8 Bd8 Qb4 Qc1 Qe3 Be4 Qec5 Kf5 Re2 Na6 b8N h1B b7 Ne6+ Qe3 Qb1 Rc7 Bc8 Nd7 Nab8 Qc1 Bf3 Qca3 Bg4 Rd2 Na6 b8R Bb7 Rbc8 Nab8 Ra2 Qe7 f8N Qc5 Ng6 Qf8 Nf4 Qa1 Nd5 Qc1+ Kh7 Qb1 Re7 Qa1 Rf2+ Kg5+ Rf5+ Kh4 Rg7 Qc3 Kh6 Qe1 Rf3 Bef5 Rf2 Ba6 Ra7 e4 Nc7 Qf1 Bh2 Qh1 Bg1 Be7 Re8 Bd8 Re7 Bb7 Ra5 Bh7 Rg5 Bhf5 Rg6 Qf7 Rg5 Re8 Rg8 Qf8+ R5g7 Qh2 Rb1 Qh1 Na6 Bb6 Rbb2 Rc8 Rb3 Bd8 Nc7 Bg6 Qc5 Bh7 Qcb4 Bhf5
b1B1B3/1BQ1qRBK/4rb1n/R1QR2nN/1p2nR1N/b5Bk/1b2q3/2q1r3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 b5 Ke4 h5 f4 e5 g4 c5 d4 b3 a4 c4 f6 b2 Kf5 e4 Kg6 e3 a5 e2 g5 e1B a6 c3 d6 Ke6 d7 b4 f7 h3 a7 h4 f5+ Ke7 f6+ Ke6 d5+ Ke5 d6 h2 Bh3 c2 Qh5 Be7 f8R Bc3 f7 Rh7 Nd2 Kf4 Ndf3+ Kg3 Ra5 b1Q Bb2 Qc7 d8B Qd1 d7 c1B Bg4 h3 Ne2+ Kg2 Ng3 Qe2 Rd1 h1Q Rdd5 Bef6 Nh4+ Kh2 Be7 Bb7 d8Q Nd7 Bd6 Nh6 Ba1 Qc5 Qc7 Re8 a8B Ba3 Bf4 Bc6 Bb7 Re6 Bf5 Rh8 Bb2 Rg8+ Kh7 Ne5 g6 Qc1 g7 Nf3 Qg5 Qe7 Nh5+ Kh1 Ba1 h2 Bg3 Bcb2 Bg4 Kg1 Qe3+ Kf1 Qc5 h1N Bf5 Nf2 Bg4 Re5 Bgc8 Ne4 Rfd8 Nh2 f8R Nf3 Rf7 Re8 g8B Re6 Rf5 Bd5 Rf4 Bc6 Rd4 Kg1 Rd5+ Kh1 Nf5 Kg2 Nh4+ Kh3 Rg7 Rd8 Bf7 Rd6 Be8 Rd7 Rg5 Rd1 Rd5 Re1 Rf7 Bh8 Ba6 Ba8 Bab7 Bbf6 Bd4 Bhg7 Bdf2 Bfb2 Bd4 Bf6 Be5 Bg5 Bh8 Bgf6 Bg7 Nfg5+
Q1Rbb3/r1rpBn2/R2nKQq1/1RqB1rB1/1N1R4/2N1B3/b3nR2/1n4k1 w - - 0 1 illegal: Other
1R2N3/2R3rb/1Bn2K1k/N1r2n2/3pNR1n/R1QQ3R/rn1Nn1q1/bn1B4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Kg4 a5 Kg5 e5+ f6+ Kf7 f4 h5 g4 d5 c4 e4 b4 d3 f5 a4 b6 e3 b5 e2 c5 e1N b7 h3 c6 a3 b6 d2 c7 a2 Nf3 h2 Be2 h4 Nc3 h3 Ne4 Nc6 b8R Rh7 b7 Nge7 Qc2 d1N Qd3 Ra6 Nfd2 Nb2 Bd1 Ng2 Qc3 Bd7 c8R Bg7 Rc7 Nh4 Qd3 Kf8 f7 Be5 Qc3 Kg7 f8R Bd4 Rf6 Qg8 Rff8 Be8 Qd3 Bg6 f6+ Kh8 f7 Nef5 Qc3 Rg7 Qd3 Kh7 Qc3 Be3+ Kf6 Kh6 Qd3 Bh7 Qc3 Nc4 Ba3 d4 Bc5 Nb2 Bb6 Ra5 Qd3 Rc5 Qc3 Bf2 Qd3 Be1 Qc3 Ng3 Qd3 Ne2 g5+ Kh5 g6 Kh6 Rfc8 Nc3 f8Q Qd5 Rf7 Nb1 Rcc7 Qd7 Qd6 Qg4 Q6g3 Qe2 Qc3 Qg4 Qgd3 Qg2 Rf1 h1N Rf3 h2 Rh3 Ng3 Rff8 Re7 g7 h1N Rf7 Ne2 g8N+ Kh5 Rbf8 Ng3 b8N Nf5 Re8 Na7 Nc6 Rd7 Rff8 Rg7 Na5 Nc6 Rd8 Nc4 Rb8 Nb2 Ke6 Kg6 Ngf6 Kh6 Ne8 Na3 Rb1 a1R Kf6 Ra2 Ra1 Nb1 Rg8 Rd7 Rg4 Rg7 Rf4 Ra4 Nf1 Bd2 Ra3 Be1 Rb3 Ra2 Ra3 Bd2 Qb3 Bc3 Nfd2 Na4 Qbc2 Ba1 Qcc3 Nb2
RK3b2/N3b3/k7/2r2Q2/bRn1rN2/qRbnBB2/2b1n1np/Q1QR1Q1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8Q c2 d5 a3 g5 a2 d6 h3 g6 Qf6 d8Q Rh4 d7 Qe7 g7 Nc6 Qg6 Nb4 Be2 Nd3 Nc3 Nf6 g8Q Qa3 Q8g7 Ng4 Qf1 Ne3 Qdg5 Nc4 d8Q+ Bd7 Be3 c1B Q6f7 Be7 Qdh8 Ra5 Bd1 Bf8 Nge2 Rg4 Rb1 a1B Rb3 Bd2 Rg1 h1N Q7h6 Ng3 Qd5+ Kb8 b7 h2 Qhh3 Kc7 b8R Bc6 Re8 Kb7 b6 Rc5 Nb5 Bac3 Na7 Ka6 b7 Ba4 b8R Bf6 Q3h6 Bc3 R8b4 Rh4 Q6h7 B6e7 Ra8 Rg4 Nd4 Ne2 Ne6 Be1 Qa1 Bc3 Qhh3 Rh4 Qhg2 Rg4 Qh1 Rh4 Kg2 Rg4+ Kh3 f3 Nf4 f2 Qf7 Rh4+ Kg2 Rg4+ Kf3 Rh4 Ng6 f4 Ke4 f3+ Nf4 Rg4 Qfd5 Rh4 Kf5 Rg4 Ke6 Rh4 Qdf5 Rg4 Qe1 f1B Qf2 Bg2 Qf1 f2 Qh6 Be4 Qhg5 Rb5 Kd7 Rh4 Kc8 Rc5+ Kb8 Rg4 Qe1 Rh4 Qgg2 f1N Qd2 Rg4 Qdc1 Rh4 Bd4 Nfe3 Qf1 Ng2 Be3 Ng3 Bg4 Ne2 Bf3 Nde1 Qf2 Bc2 Rf1 Nd3 Rd1 Rg4 Qff1 Rh4 Ng6 Rd4 Nf4 Re4
B1n2bR1/r3rBQr/2RBq3/1kqRn2r/2R5/1B2B2Q/1rbN1p1K/N2r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 Kg2 f5 d4 h5 e4 f3+ Kh2 h3 b6 a4 g5 f4 d6 Kc6 d7 f2 b5+ Kd6 g6 h4 e5+ Kd5 b7 f3 b6 Kc6 g7 c4 d5+ Kb5 e6 a3 d6 a2 e7 Rh6 e8B Qe7 d8Q+ Nd7 b8R Ra6 b7 Rh5 Bg2 f1R Qd4 c3 Bf7 c2 Nd2 f2 Ngf3 Re1 Nb3 Ra7 Be3 c1Q Nfd2 Qc5 Rc1 a1R Rc4 Rab1 Na1 Ne5 d7 Rb2 Qd3 Qf6 Qe7 Qe6 d8R Bd7 Qg5 Ne7 g8B Nc8 Qg7 Bc6 Ra8 Be4 b8B Bf5 Qc3 Bc2 Bd6 Re2 Rc1 Rh7 Kh1 h2 Qd3 Rh5 Qf5 Rh7 Qh3 Rh5 Bb7 Re1+ Kg2 h1R Rb8 Rhf1 Kh2 Rd1 Rd7 Rfe1 Be4+ Nb6 Re8 Nc8 Ba8 Rh7 Bc7 Rh5 Rd5 Rh7 Bd6 Rh5 Qhg4 h3 Re7 Qf6 Rf4 Nd3 Rde5 Rh8 Kg3 h2 Bfd5 h1R Bd4 Bb3 Bgf7 Qb4 Re8 R8h7 Rc6 Be7 Rg8 Bc2 Bb3+ Qc5 Rd5 R1h5 Qh3 Bf8 Kh2 Ree7 Be3 Ne5 Rc4 Qe6
2qBQ2Q/4r3/bnB1RQ2/N1Q2r1N/2p1bb2/2Qn4/nn2K2k/bR2R1Rb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 g4 f5 d6 c5 d7 a5 e5 h5 d5 c4 e6 a4 e7 h3 e8Q Kh4 d6 Kg3 b6 f3 b7 f2+ Kd2 f4 b5 f3 b6 h4 g5 h2 g6 a3 g7 a2 Ke3 h3 Qc2 Ne7 Nd2 Nec6 Rb1 a1B Qc3 Ra7 Nb3 Nb4 Na5 Na2 Bg2 f1B g8R+ Bg7 Qh5 f2 Qc5 Bd3 Bc6 Be4 Ne2+ Kg2 Re8 Be5 Re1 h1B Re6 h2 Ng3 f1N+ Ke2 Bf4 Nh5 Rf8 Ba3 Qc7 d8R Ne3 d7 Rf5 Rg8+ Kh3 d8Q Nd7 b8Q Ba6 b7 Nb6 Qa8 Qc8 b8Q Raf7 Qdf6 Re7 Qd2 Nd1 Rgg1 Nb2 Qbe5 Qc7 Qah8 Qc8 Qc2 Bhg2 Qb8 h1N Qcc3+ Kh2 Qa8 Nf2 Bb4 Qc7 Qae8 Qc8 Ba3 Nbd1 Bc1 Nd3 Be3 N1b2 Bd4 Qb8 Be5 Qb7 Bc7 Bh1 Bd8 Qc8
Q1bRn1nr/3n4/1NN1K3/b5B1/b1p2B2/2Qq1k2/BR1QrB1Q/1Bnb3b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 c5 b4 a4 g5 h3 b6 a3 b5 a2 b7 h4 g6 h2 b6 f6 g7 h3 Qc2 f3 Bf4+ Ke7 d6+ Ke6 d7 f2 d5+ Kf7 Kf5 Ra6 e4 Ra3 d6 Rf3 e5 Ra3 Bd3 f1N Nf3 Nd2 Rd1 h1B Nc3 h2 Nd4 Ne4 Na4 Bf3 Rab1 h1B Qc3 a1N Nc6 Nb3 Rb2 Ra2 Bb1 Nc1 Bg3 Be7 Bf2 Be2 Rd3 Bd1 Rd5 Ng5 Rdd2 Ne6 Rd3 Nc7 Rd5 Nba6 b8B Ne8 b7 Bf8 Bc7 Nb8 Nb6 Ba4 Rb5 Re2 Rb2 Na6 b8Q Be7 Kf4 f5 e6+ Kg6 Rd1 Bh4 e7 Bf6 Qa8 Nb8 Rdd2 Bd4 Rd3 Be3+ Ke5 f4 Ke6 f3 Rd4+ Kg5 Rd5+ Kf4 Rdd2 Nh6 g8B Bd1 Rd3 Ke4 Bf7 Bd2 Bg8 Nf6 e8Q Be1 Qh5 Ne8 Bf7 Ng8 Qh2 Bd2 Bd4 f2 Be3 f1B Bf2 Nh6 Bg8 Qh4 Bf7 Qg3 Rd5+ Qd3 Bg8 Ba6 d8Q Bc8+ d7 Be1 Bf7 Ng8 Qg5 Bfg2 Qgd2 Bf3 Bf4 Ba4 Ba2 c4 Rd6 Ba6 d8B Nd7 Bdg5 Bc8 Rd5 Re3 Rd6 Bfd1 Bh5 Bdc2 Bd1 Bcb3 Bc2 Re2 Bcb1 Bd1 Kf7 Nf8 Rd8 Nd7 Qdc2 Bd2 Ke6 Be1 Q3b3 Bc3 Qd2 Ba5 Qbc3 Kf3+
bR5n/1Rnr2r1/2nr4/1pNR3B/1k1BQQ2/r2RnRBB/6r1/b1K2N1q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 g4 c5 f4 b5 a4 e5 g5 h5 g6 e4 a5 b3 f6 b2 f7 h3 a6 c4 g7 h2 a7 h4 f5 h3 f6 Be6 Qe1 Rh7 Nc3 Ne7 g8B Bg7 f8R Nbc6 f7 Ng6 Nge2 Nh8 Na4 Qh4 Ng3 b1N+ Kc2 e3 Ra3 c3 Nc5 e2 Bf4+ Be5 Kc1 c2 Rd3 Nc3 Rb8 Bc8 f8R Rd7 Bf7 Bb7 Qf2 e1N Bh5 Ng2 Be3 Rg7 Rf3 Rd7 Bf4 Ne3 Bg2 Rg7 Nf1 Rd7 Rg1 h1R Bg3 h2 Bh3 Rg7 Rg2 Rg1 Qd2 h1R Re2 Ng4 Qf4 Rg2 Red2 Ne3 Rdf2 Kc7 d6+ Kb6 d5 Ka5 d7 Rhh2 d6 Ncd5 d8B+ Nc7 d7 Ba1 Bf6 Rh1 Qg5 Kb4 d8R Rd7 Rd5 Rhg1 Bd4 Rd6 Qf4 Rd7 B3g4 Qh1 Bh3 Rd6 Rd2 Rd7 Rd3 Rd6 Bf2 Rg7 Re8 R1g2 Bg3 Rdd7 Re7 Rd6 Rf8 Rad8 a8Q R8d7 Qe8 Ba8 Ref7 Rg5 Rh7 Rgg7 Qee4 Rg1 Kd2 c1R Rc8 Rc3 Rb8 Ra3 Kc1 Ng6 Rb7 Rg2 Rh8 Nh4 Rg8 Ng6 Rgb8 Nh8
nr1n1NQ1/3b1KRB/3pQ3/R1n3R1/n2BN1Q1/r1r2R2/3bQ1Q1/qk2r1r1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 f4 e5 b4 a5 g4 d6 c4 h3 g5 h2 g6 h6 g7 a4 Kg6 h5 c5 h4 b6 d3 b5 d2 c6 h3 f6 a3 f5 a2 f7 Bb7 f6 Ra5 c7 Ra3 c8Q Kd4 Nc3 e4 Qdg4 d1N Bb2 Na6 Bd3 Nc7 Qce6 Bc6 b7 Na8 b8R Qa5 b6 Nh6 g8Q Bd7 b7 Qa6 Qe2 e3 Ne4+ Nc3 Qg7 Be7 f8Q Nf7 Qc8 Nd8 f7+ Bf6 Qg8 Bg5 f8R Bh6 Qg2 e2 Rf3 e1R Qeg4 Bd2 Ne2+ Ke5 Nd4 Na4 Rg1 h1R Kg7 h2 Ne6+ Rc3 Nf8 Kd4 Qe2 Qa5 Rg2 Rhg1 Q4e6 h1N Rg5 Nf2 Kf6 Nc6 Kf7 Qa6 Bc2 Nd3 Qg4 Ndc5 Bd3 Bf5 Qe6 Qa5 Rd8 Qa7 Rd7 Nd8+ Kg7 Qa5 b8Q Qa6 Qb7 Qa7 Rc1 a1R Qc6 Ra3 Ra1 Bg6 Kf6 Be8 Rh7 Bd7 Rhg7 Rhh1 Ra2 Rb1 Ba1 Rb8 Qb7 Re1 Qb2 Rhg1 Qeg2 Be3 Qbe2 Bd2 Bb2 Qb7 Ba1 Qb1 Bb2 Qa1 Bb1 Ndb7 Kf7 Nd8+ Ke7 Rab3 Qef7 N4b6 Ra5 Ra3 Qfe6 Nba4 Nf6+ Bf4 Bc1 Rd3 Be3+ Kc3 Bf2 Bd2 Bd4+ Kb4 Bc2 Rdb3 Bh7 Rc3 Nd5+ Kb3 Nf6+ Kb2 Ne4 Kb1 Kf6 Ndb7 Kf7 Nd8+
k1N5/1R1Q1K1n/8/BB1q1RR1/rrRnQN1b/3b2nQ/Q1p3r1/1b1rn2Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 d4 c5 e4 Kc7 b4 Kb7 g4 f3 g5 a4 d6 f2 d7 h3 Ke6 c4 g6 h2 g7 h4 b6 a3 b5 h3 e5 f4 d5 c3 d6 f3 Ne2 a2 Bd2 c2 Rg1 h1N Nbc3 h2 Nf4 Ra3 Na4 Ng3 Ba5 h1N Kf7 Rh5 e6 Nf5 e7 Nd4 e8Q Ka8 Qe4+ Nbc6 Rg5 Nf6 g8Q Be7 Be2 Ng3 Qh1 Rd3 Rf1 a1R Qh8 Rh2 Qh3 Rdd1 b7+ Ka7 b8R Nh7 Bc4 Nb4 Rb7+ Ka8 b6 Rg2 Bb5 Nd3 Rc7+ Bb7 Rc6 Ne1 Rc4 Qc8 d8Q Bd5+ Qhe6 Ra2 Qh8 Qd8 d7 Rb1 Qh3 Rb4 b7+ Kb8 Rg4 Bh4 Nb6 Raa4 Nc8 Qg5 d8Q Qe5 Rc6 Ba2 Rc4 Bb1 Rg5 Qc5 Qdd7 Qd5 Rg1 f1B Rf5 f2 Qh1 Ndf3 Qb2 Nd4 Qa2 Qe5 Qh6 Bd3 Qh5 f1R Qg4 Rd2 Qgh3 Rd1 Rg2 Rf2 Rg1 Nf1 Rg8 Ng3 Rgg5 Rg2 Ne7 Ka7 b8R+ Qc7 Rb7+ Ka8 Nc8 Qd6 Ne2 Qc5 Nf4 Qd5+
4q1R1/Bq3n2/3Q1R2/1BB2NBr/rN1q2b1/2k4q/2nbp1Q1/bBbK1R1R w - - 0 1 illegal: No possible last move, all moves rejected
2QN1Qqr/B2Rb2B/2q2NRr/1NqR1n2/1bR1R3/1pbbq3/K5nk/7N w - - 0 1 illegal: No possible last move, all moves rejected
q1q1qkb1/1Q1q3R/2b5/n1R3BN/1K1R2pn/bQQ2B1r/1b1N3r/RR2Q3 w - - 0 1 illegal: No possible last move
r1K2QR1/6Q1/n2r3n/NB1pQ2Q/1q3b1B/N4n1n/2bRqr2/2NNk1rQ w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 f4 e5 b4 a5 b6 d5 b5 d3 c5 h6 b7 d2 b6 Ke3 c6 Kf2 c7 h3 Na3 h2 Ne2 e4 Ra2 e3 Rg1 Nd7 b8N h1R b7 a4 f6 h5+ Kf5 h4 Ke6 h3 g4 h2 g5 Ra7 f5 Be7 f7 Ra5 f8Q Ra6+ Nc6 Rh7 b8Q Bd6 g6 Nh6 f6 Bf4 f7 Qh4 g7 Rh8 Nc3 e2 g8Q e1N Qgg7 Nf3 Bb5 Ra8 Qe8 Rf8 Ne5 Nc5+ Kd6 Bg4 c8N Na6 Na7 Bf5 Nc6 Bc2 Kd7 Qe7+ Kc8 Qb4 Rg6 Rg1 Na5 h1Q Bb2 Qg2 Qc1 d1N Nd3+ Kf1 Qa1 Qd2 Nc1+ Qe2 Rg4 Nf2 Nd1 Ke1 Bf6 Nh3 Bh4+ Kf1 Rg3 Ke1 Qb1 Bb3 Rd2 Bc2 N3c4 a3 Qba1 a2 Na3 Ra7 Qbe5 Rd7 Qb1 a1R Qh5 Rg8 f8Q Rd6 Qee5 Rh8 Qgf7 Rg2 Rg8+ Rf2 Qff6 Rh7 Q6f7 Rg7 Q7e7 Rg1 Q7g7 Bb3 Qbh7 Bc2 Qhe4 Nh2 Qeg2 Nf3 Qh1 Qb1 Nc6 Nb8 Nc4 Ra8 Na3 Qb4 Na5 Na6+
QNN5/R2r1RB1/5Nq1/b1p2k2/6r1/b1n1qBBb/Nb2nBn1/1K1Qn1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kc2 a5 b4 f5 e4 g3 h4 a4 e5 a3 h5 g4 d6 Ke6 h6 a2 d7 c6 b6 f3 b7 f4 b5 g2 b6 f2 h7 f3 d5+ Kf5 d6 g3 e6 Ra7 e7 Na6 b8B Nc5 e8N Qe7 d8Q Nf6 b7 Rg8 h8B Qe3 d7 Rg4 Rh7 Nd3 Be2 f1Q Nh3 g1N Bg7 f2 Nc3 g2 Bf3 Ne2 Ng5 g1B Nge4 Nd5 N4f6 Qg2 Bg3 f1N b8N Ba3 Bd2 Rb7 Bde1 c5 Bef2 Bh2 Bg1 Ra7 B3f2 Bc7 Bg3 Ba5 Nd6+ Kg5 Qf8 Rc7 d8B Rd7 B3f2 Kf4 Bc7 Ke5 Rb1 a1B Na2 B1b2 Ra1 Ne1+ Kb1 Kf4 Nb5+ Kf5 Bcg3 Qh6 Qe8 Nfe3 Na7 Qgh3 Qd8 Qg6 Qe8 N3g2 Qg8 Rd6 Qh8 Be6 Nc8 Qhh6 Qe8 Qe3 Qc6 Rd7 Qa8 B3b4 Bh8 B4a3 Rf7 Bbc3 Bg7 Be5 Bh4 Beb2 Bhg3 Rd4 Nb6 Bd2 Na4 Kg5+ Qc2 Bh3 N2c3 Bb4 Nb6 Rg4 Ra7 B4a3 Na2 Ba5 Qd3 Qh6 Qd1 Kf5 Nc8 Qh5 Bc7 Qg6 Bcg3 Ndc3+
N3Qr1q/4rBRR/3Rb1p1/1Nk5/K1bb1nN1/nQ1R1rB1/1b6/N1r3qN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 d4 Kd6 Kd2 f5 Kc2 a5 Kb3 c5 h4 g3 e4 g2 e5+ Kc7 b6+ Kb7 b5 g6 e6 f3 h5 f2 e7 c4+ Ka4 f4 e8Q c3 h6 f3 d6 c2 h7 Nc6 d7 Nce7 d5 Ra7 d6 Nh6 Nd2 Nef5 Nb3 Rg8 h8N Ra8 Bc4 f1R Ne2 g1R Ng3 f2 Bf7 Ng4 Rh7 Bh6 Nh1 Ng7 Bf4 c1Q Bg3 Be3 Rb1 Ra7 Na1 Qf6 d8R Ne5 d7 Bd4 Qb3 Nh5 Rb2 Qc5 Re2 Nc4 Re7 Nf4 Rg7 Kb8 b7 Kc7 b8N Kb6 Na6 Rf8 Nc7 Na3 Rh7 Qc1 Na8+ Kc5 b6 Qb1 b7 Rc1 b8R f1B Rb4 Bc4 Rb6 Rgf1 Rd6 Rc7 Bg8 Rf2 Reg7 Rf3 Nf7 Ra7 Nh6 Bb2 Re7 Qh8 Ng4 Qe5 Rd2 Rg1 Rd3 Qh8 Nc2 Nb5 Reg7 Qe1 Be6 Qf2 Bd5 Rc1 Bf7 Bd4 Nce3 Qg1 Nc2 Nc3+ Ka3 a4 Na1 Rb7 Qe1 Rc7 Re8 Ra7 d8N Bf5 Re6 Nb1+ Ka2 Rb7 Rd6 Bd7 Qe8 Bde6 Nc6 Re7 Na7 a3 Nb5 Be3 Nc2 Bf2 Ka1 a2 Kb2 a1B+ Ka2 Bb2 Na1 Bc3 Ra6 Bfd4 Rd6 Nd2 Ka3 Nb1+ Ka4 Na3 Rh3 Bb2 Rh2 Bdc3 Rhh7 Bd4
n1B2bqb/1NBb4/7q/qQ1R2N1/1NnN2B1/1B2NR1K/Qp3p2/2rn1rk1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 a4 Ke5 h4 Ke4 d4 c5 d6 g5 d5 f5 d7 b5 d6 c4 a5 b3 a6 c3 h6 b2 h7 g4 h5 b4 a7 g3 h6 b3 Nd2+ Ke3 Kh3 Kf2 e4 b1N e5 f3 e6 c2 e7 f4 e8B g2 Bf7 b2 Bb3 Na6 Ne2 g1Q Nc4 Qg6 Ra3 Bb7 Ne3 Nf6 Nd4 Nc3 Be2 Qa5 d8N Nfe4 d7 Qg8 N8c6 Bc8 Nb4 Nc7 Qd3 Nd6 Qb5 Nc4 Rd1 Rb8 Rd3 Kg1 a8B f2 Bb7 Nd1 Bg4 f3 d8N Bd7 Bc8 Na8 Nb7 Bg7 Bd2 c1B Be1 Qe6 Bd2 Rf8 h8N Qg8 Nf7 Bh8 Ng5 Rf4 h7 f1Q+ Ng2 Rf5 Bf4 Qe1 Rd2 Qee6 Ne3 Rf8 Rd3 Bd2 Bc7 Qh6+ Kg3 Bc3 Rd2 Bg7 h8Q Rf7 Qh7 Bf8 Qb1 Rf5 Qa2 Rc5 Ndc2 Bh8 Rd4 f2 Rd5 Rc6 Nd4 Re6 Nef5 Re1 Ne3 Rf1 Nd6 Qhe6 Kh3 Rb6 Nb7 Rc6 Ba4 Nd6 Rd3 Rc1 Bb3 Qf6 Nc4 Qfg6 Rf3 Q6g7 Ne3 Nc4 Ba4 Qg6 Bb3 Qh6+
N5N1/k3bQB1/1NB2nbK/3N4/qNqn4/1pB1r1p1/rnBr1Rq1/1Q5R w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 Kb6 f4 e5+ f6 c4 a4 e4 d4 b3 h4 g3 f5 e3 h5 e2 h6 e1R d6 c3 a5+ Ka7 a6 b5 h7 b2 d7 c2 d5 b4 d6 g2 Ra2 b3 Bd3 g6 Ne2 g1Q+ Ng3 Bg7 Nc3 b1N Bd2 c1Q Bc2 Re4 Nd5 Qgb6 Nh5 Re3 Bc3 Qe7 d8N Nd2 d7 Qd4 Ne6 Rf3 d8N Qf8 f7 Qca3 f6 Re3 Nec7 Bg4 Qb1 Qaa4 Rb2 Qfa3 f8N Nc4 f7 Nc6 Nhf6 Bf5 N8d7 Bf8 N7b6 Be7 f8Q Qa2 Qf7 Qd3 Qe1 Nd4 Qb1 Rc8 Nca8 Qe2 Nb7 Rd8 Nc5 Rd6 Nd3 Qg2+ Kh4 g5+ Kh5 g4 N3b4 g3 Kg5 Qb5 Kh5 Qaa4 Kg5 Kb8 a7+ Kb7 Ra2 Nb2 Kh5 Qc4 Kg5 Nh6 Kh5 Rg8 h8B Ng4 Bg7 Rgd8 Ng8 Nf6+ Kh6 Bg6 Nac7 Rde6 a8B+ Ka7 Bc6 Re2 Nca8 R6e3 Rf1 Rd2 Rf2 Rd6 Ra1 Rde6 Qa2 Ree2 Rh1 R6e3 Qa1 Re1 Qa2 Ra1 Qb1 Ra2
qbB1RQr1/2n3B1/2qrNN2/n1pr4/1B2R2K/2Nkp1B1/4b2Q/B2q1n1N w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 f4 e5 Kf2 h5 b4 a5 b6 c5 f5 h3 Kg3 a4 b7 a3 b5 h2 b6 e3 g5+ Kf7 f6 Kg6 f7 Kf5 d6 Ke4 d5 e2 d7 e1R g6 a2 d6 Qc7 d8B Re2 g7 Bf5 d7 Ra4 Kh4 Bd6 f8Q Qc6 Nh3 Bg4 Bf6 Rd4 d8N Red2 Ba3 Ne7 g8N Rd5 Ba6 Be2 Re1 h1N Bg7 Ng3 Ne6 Nf1 Nf2+ Ke3 Qc2 e4 Nf6 Rg8 Bb4 R2d3 Bc4 Na6 b8B Nc7 Nc3 Rd2 Rac1 a1Q b7 Qa8 Nh1 Be5 Qb2 Rd6 Ra1 R2d5 Ra4 Bf4 Ba6 Be5 Kg5 h4 Qa2 h3 Kh4 h2 Qc2 Nb5 Bc7 Bf4 b8B Be5 Bca5 Nc7 Bc8 Bf4 Ba3 Be5 B5b4 Bf4 Qa2 Kd3 Bb2 Be5 Ba1 e3 Rb1 Qe8 Rb2 Nc6 Rb1 Na5 Qb2 Ng3 Rf1 Qec6 Rf5 Bf4 Re5 Nf1 Re4 Nc4 Ra6 Na5 Ra7 Nb5 Re7 Nc7 Re8 Rd8 Qc1 Nb5 Ng3 Nd2 Qg1 h1Q+ Qh2 Qd1 Be5 Nf1 Nh1 R8d7 Bd4 Bb8 Be5 R7d6 Bg3 Nc7
b3QnQ1/2n3B1/2Q1r1pq/5B1p/1BRB3b/2K1nN1B/krb3NQ/1Rq3r1 w - - 0 1 illegal: No proof kernel
3K4/3BR1Q1/3p1R1Q/2BN3B/1Rn1pnrq/3r3b/1bR1nqk1/BbR3qN w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 b4 e5+ f6 a5 c4 h5 f4 a4 g4 d3 b6 h3 b5 h2 f5 h4 b7 d2 b6 a3 c5 a2 c6 h3 c7 Qe8 f7 Be7+ f6 Nh6 f8R Ra5 Ne2 Kf3 Bb2 Ba3 f7 e4+ Kf6 Nf5 g5 Na6 b8R Bb4 g6 Rb5 b7 Rd5 g7 Nc5 g8Q Nd3 Qc1 d1B Nbc3 Nd6 Qh6 Nc4 Ng3 Bc2 Be2+ Kg2 Rac1 a1Q Bh5 Bb1 Qgg7 Nf4 Rc2+ Rd2 Nd5 d6 Rhc1 Rg8 Nh1+ Bg4 c8B Ba3 Bc3 Bb2 Bd7 Qa7 Be5 Qf2 Bd4 Qc8 Ke7 Qc5 Rbe8 Rd3 b8R Qa7 Kd8 Qa1 Ng3 h1N Re7 h2 Bc5 Bh3 Rb4 Qa7 Rfe8 Qa1 f8B Qa7 Rf7 Qa1 Rf6 Qa7 Qgh8 Rg4 Bg7 Qa1 Re7 Qa7 Nf1 Ng3 Q8h7 Nge2 Ng3 h1Q Qg8 Qhf1 Nh1 Q1g1 Bh8 Qfe1 Qgg7 Qh4 Rf5 Bc3 Bf2 Qc5 Qf7 Bd2 Ba1 Be3 Qfg7 Bd4 Rf6 Bb2 Bd4 Qc6 Ba7 Qcc5 Bb6 Qce3 Bc5 Qef2
q6B/1BnQB2k/q1p1b2N/bBqrR3/p1QR4/3rBb1K/1nn1R3/N1R5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 e4 f5 g4 Kf7 Kg2 Kg7 b4 h5 d4 f3+ Kh3 f4 e5 a4 e6 f2 d6 f3 b6 Rh6 b5 Ra6 e7 Rh7 e8R Bf5 d5 Nd7 b7 Kh8 b8Q Rf7 b6 Nh6 b7 Be6 Be3 Kh7 Ra2 Ne5 d7 Rd6 Qc8 Nd3 b8B Rf5 g5 Ng8 Na3 Ne7 Re2 Nb2 Nc2 Bh6 Qa6 Qc8 d8B Rd7 d6 Nd5 Bg2 f1Q Qc4 f2 Nf3 Qg1 Be7 f1N Qdd3 Qa6 Nh2 Bg7 Qd1 Bc3 Ng4 Ba5 Na1 Rd8 d7 c6 Be5 Nc7 Bh8 Qf2 Nh6 Rd5+ Qg4 Rd3 Qc2 Qf5 Qc4 Qc5 Bf3 Nh2 Bg2 Nf3 Rc1 Nd4 Bf1 Qa8 Kg2 Nc2 Kh3 Rb8 d8R Rb5 Rd4 Qa6 Kh2 h3 Kg3 h2 Kh3 Bd5 Qd7 h1B Rf8 h4 Rf5 Bhf3 Re5 Bf7 Nf5 Kg8 g6 Be6 g7 Kh7 g8B+ Kg6 Kh2 h3 Nh6 Qa8 Bf7+ Kh7 Bh5 Qa6 Bg4 Qa8 Kg3 h2 Kh3 h1Q+ Rh2 Qg1 Re2 Bg8 Qdd5 Qca7 Bc8 Qa6 Qd7 Rd5 Bb7 Be6+ Rg4 Qf8 Qf4 Qc8 Bf2 Bb6 Ree1 Rd1 Bb5 Qd8 Qc4 R1d3 R1e2 Ba5 Bd4 Qda8 Bdc5 Qe1 Bg1 Qb4 Be3 Bf7 Rh4 Qc5 Rd4 Be6+
2r1N3/q3R1pr/pk3r2/1q3N2/3nQ2R/3Q1BQ1/N1bn1QbN/B1bqK1N1 w - - 0 1 illegal: No possible last move, all moves rejected
1r2Q2n/B4QBK/R6N/RBN2n2/p1n1b1Bn/2q1pr1B/n1k5/4QbbQ w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 b4 e5 f4 d5 c4 h6 Kg6 d3 f6 d4 f5 h3 b6 d2 b5 h5 f7 h2 b7 d3 b6 h4 g5 h3 c5 Qc7 f6 Bd6 f8Q Bd7 f7 Rh7 c6 Bc5 Qe8 Nh6 f8Q Rf7 Bb2 Nf5 Ne2 Bg1 Qe1 d1N Nd4+ Nde3 Qfe7 d2 Bb5 Qc8 c7 Nc6 b8Q d1N b7 Nc3 Q7f8 Rf6+ Kh7 Nd8 g6 Nf7 g7 Nh8 g8B Nh4 Be6 Na2 Bg4 Rf3 Nf5 Be6 Qg8 Bc4 Nd2+ Kd3 Ne4 Kc2 Qgf7 Bf1 Nh6 Nc4 Nc5 e4 Bg7 e3 Qa7 Rb8 Qa8 Qe6 c8B Qe5 Bcd7 Qc3 Bde6 Bf2 Rg1 h1B Rg3 h2 Rg1 Rd8 b8B Bhg2 Bc8 h1N Ba7 Ng3 Bh3 Bh1 Bcg4 Ngf5 Rg3 Bg1 Qab7 Rf2 Qbd5 Be4 Qdc6 Bed3 Qh1 Rb8 Rf3 Be4 Rf4 Bc6 Rd4 Be4 Rd6 Rf3 Ra6 Bh2 Rd1 a4 Rdd6 Rb7 Ra5 Bg1 Rda6 Rb8
Qb4K1/nN3nR1/Q6B/r1pR3B/bkbR1R2/N3R3/n3B1Bp/br3q1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kc4 g4 c5 e4+ Kb4 b6 f5 b7 a5 d6 f3 d5 h3 d7 f4 Ke6 f2 Kf7 h4 g5 f3 e5 h2 e6 a4 e7 a3 e8B a2 g6 h3 d6 Rh6 g7 Be7 Bg2 f1B Qd3 f2 Na3 Bf6 Qa6 Bh4 Nf3 Qa5 d8R Bd3 d7 f1B Rg1 h1N Nd2 h2 Ne4 Rb6 Bh6 Bc2 Re1 a1B Re3 Be2 Nd6 Nf6 g8B Nc6 b8R Nf2 Nb7 N2g4 Rf1 Bg3 Rf4+ Bc4+ Kg7 Be4 Bh5 Qb5 b3 Be2 Bc4 Nd5+ Kg8 Nge5 Bd3 Bf1 Bde2 Ra7 Ra8 Nc3 Rb8 Qd3 Ra8 Na2 Rb8 Kc3 b4 Nf7 b5 Kb4 Rf8 Kc3 d8R Kb4 Rd5 Bd7 Rbd8 Qb1 Rg4 Bb8 Rg7 Be8 R8d6 Ra8 Rd8 Na7 R8d6 Qd3 Rd4+ Qc4 R6d5 Bf3 Bh3 Bh1 Bg2 Rg6 b6 Ba4 Rfe8 Rg4 R3e4 Rg3 Rf4 Rb3 Re3 Rb2 Nd8 Rb1 b7 Nb5 Qf6 Ra5 Qa6 Bc7 b8Q Be5 Qba8 Bb8 Be4 Na7 Nb7 Bh3 Rd7 Be6 R4d5 Qb5 Rd4+ Bc4 R7d5 Qb6 Bg2 Qf6 Rfe4 Qf2 Rf4 Qf1
1BR2bbB/2K2pn1/rpr1Q1r1/3Qn3/1k1N2BB/1rN5/nr1BN1q1/2R3N1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 g5 d4+ Kb5 e4+ Ka5 a4 c5 h4 b3 d6 b2 d7 g4 h6 f3 d5 c4 h7 f2 d6 b6 h5 g3 h6 g2 Nc3 b1R Bd2 Bb7 Be2 f1R Bg4 Rf3 Nce2+ Rb4 Rc1 Qh4 d8B c3 d7 Qf2 Bh4 c2 d8N Rc3 Nc6+ Ka6 a5 Kb5 a6 Ne7 Kd6 Rg3 a7 Ka4 e5 Nd7 e6 Ne5 Ncd4 Be4 Kc7 Nf5 e7 Ng7 e8Q+ Ka5 Rh3 Rb3 Rc3 Rb5 Qd7 Kb4 Qe6 Rg8 h8B Bh7 Qe1 Rd8 a8N Rd6 Qf1 Qg3 Qf3 Ra5 Qfd5 Ra6 Kb8 Qf2 Nc7 Rb2 Ncb5 Qf3 Rd1 c1N Kc7 Na2 Rdc1 Qg3 Ngf3 g1R Rc5+ Ka4 Nbc3+ Kb4 Rc6 Rf1 Nfg1 Rf3 Rc5 Qg2 Rc6 Nf5 B8f6 Ng7 Rc5 Bg6 h7 Rg3 h8B Bh7 Bfg5 Rh3 Bdf4 Rg3 Ne4 Rgb3 N4c3 Nh5 Bh2 Rg6 Bd2 Ng7 Kb8 Rf6 Rc8 Bg8 Kc7 Rg6 Qf5 Rde6 Kd8 Nc4 Bb8 Rd6+ Kc7 Ne5 Qfe6 Rc6+
bn5B/bnR2nQ1/1R1NB3/Qq2NK1R/1brR3p/4b3/2k1pr1r/2N2RN1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 b4+ Kd4 g4 c5 g5 h5 d6 a5 b6 a4 b5 a3 b7 c4 d7 e5+ Kf5 a2 f4 h3 b6 c3 g6 e3 g7 e4 Bc4 h2 Qe1 e2 Bb2 e3 Be6 Nf6 g8Q Kd3 Qg7 c2 Nc3 Ba3 Rc1 a1B Na2 Qf8 d8N Qb4 Nf7 Ne4 Nd6 Ng5 Bc3 Ra4 Bf6 Nc6 b8N Rf8 b7 Bd4 Nd7 Nf7 b8R Ba7 Rb6 Bb7 Bc3 Qb1 Bf6 Ba8 Ne5+ Kd4 d3 Qb5 Qa5 Nb8 Rf1 Bb4 Nc1 Kc3 d4 e1B d5 e2 Qh6 Kb2 Bh8 Bf2 Qg7 Qa6 Nb5 Be3 d6 Kb1 d7 h4 d8R Kb2 Nd6 Qb5 Rc8 Kb1 Rc7 Kb2 Rd1 Kb1 Rd4 Kb2 Nf3 Kb1 Rhd1 h1R Rf1 Rh2 Ng1 Kb2 Kg6 Kb1 f5 Kb2 f6 Kb1 Nb3+ c1N Rf5 Nd3 Nc1 Kb2 Rh5 Nc5 Kf5 Kc2 Ndc4 Ng5 f7 Nb7 Nd6+ Bc5 Qg6 Rc4 Qh7 Bb4 Qg7 Rg8 f8R Nf7 Qh6 Rg3 Qg7 Rgg2 Ke4 Nfd8 Rf1 Nf7 Kf5 Rf2+
2r2Nk1/R2Rpq1b/1n3p1R/1K2R3/1nn1N1NN/b1b2Q2/r5r1/1B2BQNn w - - 0 1 illegal: No proof kernel
4R1K1/Nqb2qR1/N1p5/qRBQ1nrq/1Q3r2/n3q1k1/QQRp2B1/2Q2b2 w - - 0 1 illegal: No proof kernel
1Qb1KB2/3rn1p1/3br1NQ/3nRNRR/5Nq1/3n3N/RRn2p1q/1nk4B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 a5 h4 f5 b4 c5 h5 f3 Kg3 c4 Kf4 a4 e5+ Kd7 d6 Ke6 h6 Kd5 h7 c3 b6 a3 d7 g3 b7 c2 b5 f2 b6 g2 e6 a2 e7 Ra4 Kg5 Ke4 Kg6 f4 Kf7 f3 e8R+ Be7 d5 Rc4 d6 Nf6 Rh5 Nc6 b8Q Rb4 b7 Ng8 Qd2 Qc7 d8N Rb5 d7 Nb4 Na3 Rc5 Nh3 g1Q Qh6 Qch2 Ne6 Bd6 d8R Qg4 Nc4 Rc6 Nef4+ Ne7 Ne3 Nd5 Bg2 f1N Bh1 Nd2 Ba3 c1N Nf5 Nb1 Rg5 Rg8 h8N Nd3 Nhg6 Rc7 Rh5 Rd7 Bb4 Nd2 Rg1 a1N Rg2 Nb1 Ra2 Rh8 Rg5 Rh7 Rh8 Nc2 Rdf8 Qgg2 Ke8 f2 Rf6 Be5 Rb6 Bd6 Rb5 Kf3 Nh5 Ke2 N5f4+ Kd1 Ba3 Ndc3 Re5 Qg4 Bc5 Kc1 Bb4 Ng8 Bc5 Nd5 Bb4 Bc7 Bf8 Bd6 Qa7 N5b4 b8R Nd5 Rbb2 Nge7 Qb8 Nce3 Qh4 Nc6 Nge7 Rh6 Qh5 Rf6 Qg6 Nc2 Rhh5 Re6 Qh6 Rf6 Neg6 Nce7 Qb7 Re6 Qa8 Bb4 Qb8 Bd6
r1Q3r1/1rRpKN2/4B1Nb/1NRBQ3/n1b1N1q1/5r1r/k3qp2/nN4BB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ d3 h4 g5 b4 a5 b6 g4 b7 a4 e5 f6 b5 a3 b6 f3 h6 a2 h5 g3 e6 f2 e7 g2 e8B Qe7 h7 Nc6 b8N Qe2 h6 d2 b7 Na7 Rh5 Be7 Nh3 g1R Bg2 f1R+ Nf2 Bd6 Nc6 Bb8 Bd5+ Kc5 c4 Bd6 b8Q Ba6 Qc8 Nb5 Bef7 Na3 Bfe6 Bf8 Qe1 Nc2 Na7+ Kb4 c5 Bc4 c6 Kb3 c7 d1Q Be3 Rh1 Rg5 Rh3 Nb5 Kb2 Kg6 f5 Kf7 f4 Ne4 f3 Bg1 Nf6 Rf5 Rg8 h8N f2 h7 Bh6 Ke7 Qg4 Nf7 Qde2 h8N Raa3 Nfg5 Raf3 Ngf7 Kb3 Ng6 Kb2 Nec3 Ne4 Re5 Nc5 Ne4 Na4 Qc3+ Kc1 Rf5 Re1 Qe5 Rf1 Qd8 Rd1 c8B Rd4 Qe8 Kb2 Bcb7 Kb3 Qc8 Rd1 N1c3 Rb1 Rh5 Rb2 Rc1 a1R Nb1 Ra3 Ba8 Na1 Rf5 Ka2 Rh5 Bb3 Rc7 Bc4 Bdc6 Rhg3 Nbd6 Qh3 Neg5 Rfd3 Qd4 Nc5 Bh1 Rdf3 Nge4 Qg4 Rd5 Rb6 Qe5 Rh3 Nb5 Ra7 Bb7 Na4 Rdc5 Ra8 Bbd5 Rb7
1rkr1rQQ/2p1pbN1/R7/3r1q1R/2B2BQB/3Bnq2/n1r5/bNBKQ3 w - - 0 1 illegal: No possible last move
3rQr2/kpBN4/pb3R2/1b1Rqnq1/5RBN/q3q2q/K2B1nB1/3R2QB w - - 0 1 illegal: No proof kernel
br3Br1/kB3q2/Bb2N3/q1nQ1n2/1NR4Q/B2RKN1p/bp4B1/b3Nr2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 a4 h5 f4 c5 g4 Kc7 d4 Kb6 g5 e5 g6 e4 f6 c4 f7 h3 d6 h4 f5 b3 a5+ Ka7 d7 b5 f6 b4 g7 h2 a6 c3 d5 e3 d6 c2 Ra3 h3 Nd2 Ne7 g8B Qc7 d8Q Nd7 Bg2 Kb6 a7 Nc5 d7 Rb8 a8B Bg7 f8N Bb7 f7 Nf5 Qh4 Ba1 d8N Bd5 Bc6 Be6 Kf3 e2 Bb7 e1Q Nc6 Bc4 Ra4 Qe8 Ba3 Qee7 Na5 Ka7 Kf2 Bd5 Ba6 Ba8 Nc6+ Kb6 Bb7 b2 Qf3 b1B Bh7 b3 Qd5 b2 Ne6 Nh6 f8B Rg8 Ke3 Ba2 Bd3 Qf7 Bda6 Qd8 Rc4 Nf5+ Ke2 Qdc7 Nb4 Ka7 Kf2 Ng7+ Ke3 Qd8 Ne2 Qa5 Rd1 h1R N2d4 Rf1 N2f3 Nf5+ Kf4 Nb3 Rd3 c1B+ Ke4 Bh6 Ne1 Be3 Ndf3 Bd4 Kf4 Bb6 Ke4 Nc5+ Kf4 Ne7+ Ke3 Nf5+
1Q1n2qn/2n1nRN1/KN6/b3N2R/b1BRp3/2k3p1/bqNr1B2/2Rr2QR w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 a5 b4 g5 h5 d3 h6 a4 h7 g3 f6 g2 f7 d2 b6 d5+ Kb5 Kd4 f4 e5 c4 g4 f5 a3 c5 e4 f6 g3 b7 a2 c6 Be6 c7 Nc6 c8N Nge7 Na3 Kc3 b8Q d4 Nc2 d3 Nf3 g1N Nb6 Ne2 Ne5 Nf4 Qe1 Bg7 f8N Nfg6 f7 Bd5 Ne6 Qg8 f8R Nd8 Rb1 a1Q Rf7 Ba2 Qf2 d1B Be3 d2 Rc1 Ra6 Qg1 Qb2 Bc4 Ra7 Bc5 Rd7 Ka6 Bh6 b5 Bf4 Nd3 Bc7 Bf2 Rd4 Ng7 Rd5 Nc8 Ba5 b6 Rd7 b7 Rd4 Nce1+ Bc2 Ne5 d1N Nb6 Ne3 Rh5 N3d5 Rh1 Rd2 Rh5 Kb4 Rh1 Ba4 Nc2+ Kc3 Rh5 Qe8 Rh1 Rf8 h8R Rg8 R8h5 Nh8 Qa8 Rd1 b8R Rf8 Rb7 Rd2 Rd7 Nc7+ Ka7 Rg8 Qb8 Qf8 Rd4 Rd1 Nf5 Rg6 Ng7 Qg8 Rg5 Rh6 Rgf5 Rh2 Rh5 Ncd5 Ka6 Rg2 Be1+ Rgd2 Bf2 Nc7+
bN4K1/1R2NqnR/2RbB3/BN4pR/b1n3QQ/1br1krN1/3R1q1p/4r3 w - - 0 1 illegal: No proof kernel
NrQb3K/N1nR4/Nq1B4/R3p3/1rq1bnRN/1p1R4/3N2Q1/2bknb1B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 b5 a4 c5 f4 e5+ f6 h5 Kg6 c4 g5 b3 f7 c3 d6 b4 a5 h3 d7 h4 a6 c2 a7 h2 f5 h3 f6 b2 Qe2 b3 Nf3+ Kd5 d4 Bb4 Kg7 Nh6 f8Q Nc6 f7 Be7 g6 Ng4 Nh4 Nf2 Nd2 b1B Ba3 c1B Bd6 Nb4 Bg2+ Be4 Rd1 Nfd3 Bh1 Na6 Qg2 Rb8 a8N Qb6 d8R Ne1 Rd7 Bd8 Ra3 Nc7 Ra5+ Qb5 Qe8 Ba6 f8N Qc5 Ne6 Rb4 Qf8 Bf1 Qf5 Qb5 Nc5 Qb6 Qfg4 Rg8+ Kh7 Re8 Qf5 Rg8 g7 Rf8 g8R Re8 Ndf3 Kc4 d5 Kc3 Nd2 Kb2 Kh8 Kc2 Na6 Rf8 Re7 Re8 Qc8 Rf8 Qf3 Re8 Rd7 Rf8 Bg2 h1N Qg4 Nf2 Bh1 h2 Qg2 Rf4 Rg4 Nh3 Nc4+ Rf2 Rd3 Nf4 Nd2 Kd1 Bf8 Qe6 d6 Rb8 Rh7 Re2 d7 Qb6 Bd6 Re3 Rd4 Rc3 Rd3 Rc4 Rf7 Rb4 Rh7 Be7 d8N Bg5 Nc6 Bd8 Qg3 Rb7 Na7 Rb8 Bg2 h1Q Rd7 Qhg1 Bh1 Qgd4 Qg2 Qc4
K4rbN/2Q1r1Bn/6bN/p1Q2b2/1q2Qq2/1k1B1Q2/N2b1pn1/1N1qR1RN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 a5 g6 f6 g7 h3 b6 h4 b5 f3 b7 f2 b6 h2 d6 h3 d7 Na6 b8Q Nh6 g8N Qc7 d8N Qd7 b7 Nc7 d5 Nf5 d6 Qb5 d7 Bh6 Qa7 Qb4 b8N Rh7 Na6 Ne3 Bb2 Ne8 Nf7 Ng2 d8Q Bd2 Qdc7 f5+ Ke5 f4 Nh8 f3 Nh6 Nf6 Kd6 Rg7 Kc6 Nh7 Be5 Rd7 Bg7 Re7 Qab6 Bg4 Kb7 Rf8 Ka7 Bf5 e3+ Bd3 Ne2 Bg6 Rg1 h1Q e4 h2 e5 Bf5 e6 Bg6 Qe1 Kb3 Ng3 c4 Bd3 f1B Qc5 f2 Qe4 c3 Qf3 Be2 Re1 c2 Rg1 c1Q Re1 Qf4 Nb4 Qcc4 Na2 Qb4 Rg1 Bd1 Re1 Qf1 Nh1 Qe2 Rg1 Bc2 Re1 Qd1 Rg1 Ref7 e7 Bf5 e8Q Re7 Ng3 h1B Ka8 Nh4 Re1 Bg2 Nh1 Bf1 Ka7 Ng2 Ka8 Be2 Qg3 Bh5 Qf3 Bf7 Rg1 Bg8 Re1 Rff7 Qec6 Rf6 Qce4 Rf8+ Ka7 Qa3 Rg1 Ng5 Be2+ Bd3 Qec6 Be4 Nbc3 Qc2 Rae1 Qb4 Nb1 Qd1 Qa8 Nh7 Qab7 Rff7 Ka8 Bg6 Qbc6 Rf8+ Qe8 Re3 Bf1 Bdf5 Bd3 Rf6 Qec6 Re7 Qce4 Rf8+
1N1R1Rr1/BQ2b3/2B1R1N1/pRQ2K2/p1n1nr2/1n1qQQ1r/2b1q2k/n5R1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 g4 c5 b4 e5 d4+ Kf6 f4 a5 b5 h5 d6 c4 d5 c3 d7 h3 d6 h2 b6 h4 b7 c2 g5+ Kf7 g6+ Kf6 g7 h3 Bb5 Nc6 b8R Ba6 Na3 Qe8 d8Q+ Be7 d7 Bb7 Qb6 Bc5 d8R Be7 Qf3 Rh4 Be3 c1N Ne2 Nb3 Rhe1 h1R Nc2 h2 Ncd4 Rf1 Qc7 h1Q Qc8 Ba6 Qb7 Qh3 Bf2 Rh1 Rg1 Qf1 Re1 R1h3 Be3 Na7 Bf2 Nc8 Nc6 Nb6 Bc5 Nc4 Ba7 Nh6 g8R Nf7 Qe3 Qd7 Rgf8 Qd2 Ned4 Qfe2 Nf3 Rg4 Nh4 Qc2+ Kd5 e4 Ng6 Qcd2+ Qd3 e3 Ke4 Kg7 f6+ Kh6 Qd4 Kh5 Kf5 Ng5 f7 Ne4 Qe5 Qed3 Qc5 e2 Qe3 Na3 Rg8 Qb2 f8Q Nc4 Qf7 Rgh4 Rgf8 Qbc2 Qd5 Rg4 Qdc5 Qcd1 Ref1 e1N Rf6 Q1e2 Re6 Nc2 Rb1 Qf2 Rf8 Rgh4 Rbd8 Qfe2 Nb8 Nca1 Bc6 Rg4 Nh8 Kh4 Rb2 Rhg3 Ng6+ Kh3 Rbb1 Kh2 Rb2 Nbd2 Rb3 Rh3 Rb5 Nb2 Ke5 Rgh4 f5 Ndb3 f6 Nc4+ Kf5 Rg4 f7 Rgh4 Nd7 Rc8 Nb8 Rg4 Rd5 Re8 Rd8 Rgh4 Rh8 Rg8 f8Q Rg4 Qfh6 Rgh4 Qf3 Rg4 Qhe3 Rgh4 Rf6 Rf4+ Ke6 Qdc2 Rc1 Rf8 Rb4 Nb6 Rg1 Bd3 Rb5 Nc4 Rg8 Qcd1 Rh8 Bc2 Rg8 Rfh4 Kf5 Qdd3 Rh8 Re8 Re6 Rg4 Rf8 Rgh4 Rf7 Rg8 Rff8 Rf4+
1Q6/1Bb2r1B/2b2kBB/pr1QRp2/2rB3N/N2q1K2/1R4n1/bnqRR1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 c4 f5 b4 g5 h4 d5 e4 a5 b6 d3 c5 d2 b5 d4 b7 g3+ Kf3 d3 b6 g2 h5 Ra7 c6 Bg7 h6 Nd7 b8R Nc5 e6 Nb3 b7 Kf6 c7 Ne7 h7 Ng6 e7 Bd7 e8R Bc6 c8B Nf4 Na3 Rf8 h8B Rf7 Re5 g4+ Kf2 g3+ Kf3 Qd5 Be6 Rc7 Bg8 Qc5 Bh7 Qc2 Qe1 d1R Qd2 Re1 Qd1 d2 Ba6 Rf7 Rb1 Ra8 Rbe8 Rc8 b8Q Qc4 Bb7 Qa6 Ne2 g1B Nd4 g2 Rb2 Bh2 Rd8 Re2 Re1 g1B Rd7 Ng2 Rdd5 Nc5 Qb3 d1Q Bh6 Qa1 Rd7 Rc2 Qd5 Qd3+ Be3 Rc3 Ree7 Bb5 Qb3 Qc2 Rbb1 Na4 Re8 R3c5 Bh6 Nc3 Rd5 Re7 e5+ Kf7 e6+ Kf6 Rbd1 Qac1 Re2 Rd7 e7 Nb1 Red2 Ba4 Ke2 Kf7 Nf3 Qa2 Nh4 Qac2 Kf3 Ba1 Bd4 Qc4 Rb2 Qd3+ Bde3 Kf6 Re1 Qdc4 Rdd1 Qd3 Qd5 Bd6 Rh8 R8c6 e8B Bc7 Beg6 Rf7 Re8 Rc4 Re5 R6c5 Qd4 Bc6+ Qd5 Qdd2 Bf2 Rb5 Bd4 Qd3+
3q1B1Q/R1Nr2N1/QNN3p1/2RnnQrn/Q2q2Qp/3Bq3/3b2b1/1n2k1K1 w - - 0 1 illegal: No possible last move, all moves rejected
r1b2BQ1/q2B4/n1nKp3/1BRR1pb1/n4Rr1/1R1NNB2/1Rn5/k1b3qQ w - - 0 1 illegal: No proof kernel
1rQ3q1/4bN2/2rpB3/2kqnRnb/3pB2B/q1n3N1/B1QBQKn1/3R3Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 h5 f4 e5 b4 Ke7 g4 Kd6 f6 a5 c5+ Kd5 c6 e4 f7 d6 g5 h3 g6 a4 c7 h4 f5 e3 f6 e2 g7 a3 b6 a2 b5 h2 b7 h3 b6 Ra5 Bg2+ Kc5 Nd2 Be6 c8B Kb5 Ndf3 Qe7 Ng5 Qc7 Be4 Qc5 Qc2 Nc6 b8Q Ra6 b7 Bg4 Qa8 Bh5 Bd2 Nge7 g8B Nd5 Be6 Nc3 Rd1 a1Q Kf2 e1N Ne2 Qa2 Rf1 h1Q Ng3 Qca3 b8Q+ Kc5 Qbb2 Be7 f8Q h2 f7 Ne5 Qfc8+ Rc6 f8B Ng2 Bg7 Q2b3 Bf6 Qb8 Ba2 Qbb3 Be6 Re8 B6f5 Qg8 Nf7 Rf8 Bfe6 Rd8 Qd7 Rb8 Bh4 Nf4 Bh7 Qd5 Be4 Ng2 Qc8 h1N+ Kg1 Ne1 Rf5 Nf2 Kf1 Nh3 Qab7 Ng1 Kf2 Ng2 Qcc1 Ne1 Qa6 Nd7 Qe2 Ng2 Rf1 Nf3 Qbc2 Nde5 Rg1 Nf4 Qcf1 Ng5 Qg2 Qd8 Rd1 Qg8 Qh1 Ng2
1q1N1R2/Q1R4K/BRp1r3/b1Bq1r2/R1N3Q1/1pn1rqNn/1N4bk/3q2R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Ke4 h5 f4 e5 a4 b5 g4 h3 d4 b3 a5 c6 a6 h4 a7 h2 g5 h3 f6 b2 g6 b4 f7 b3 g7 Bg4 f5 Nd7 f6 Nb6 Ne2 Bh5 Kf5 e4 Na3 b1R Rg1 h1Q Be3 h2 Ng3 Rb2 Qg4 Rh6 Ba6 Qb8 Kg5 Be7 f8R Qf3 Rc8 h1Q Rc7 Re2 Bf2 Bf8 f7 Ne7 g8Q e3 Qh7 Ng6 Ra2 Bg7 f8R Nf4 Raa1 Re6 Ra2 Bf6+ Kh6 Qhg2 Qf7 Nh3 Kh7 Bd8 Raa1 Qb7 Ra2 Rb8 a8N Na4 Nb6 Nc3 Na4 Qa7 Nb2 Rb5 Raa1 Re1 Qfg7 e2 Be3 Bg5 Rb8 Bd8 Rb6 Qb8 Bf2 Qf7 Be3 Qgf3 Bf2 Qd7 Ra2 Bf7 Nac4+ Ke7 Rcb7 Rd6 Nh1 Qf6 Ra4 Rc5 Rbb4 Ba5 R4b6 Qf4 Qg8 Kf6 Qc8 Qe6 Rc7 Qee5 Qb7 Be6 Qg7+ Kf5 Qa7 Qg4 Qg6+ Kf4 Qg7 Kf3 Ng3 Bf5+ Qg6 Be4 Be3 Rf6 d6 Rd5 d7 Re6 d8N Qd6 Nb7 Rde5 d5 Rf5 Bc5 Qgf4 Rh1 Kg2 Rg1+ Kh2 Qg4 Qde5 Qg7 Bg2 Qg4 Qf3 d6 Ref6 d7 Qed5 d8R Re6 Kg7 Rf1 Rf8 e1Q Kh8 Qed1 Nd8 Rfe1 Kh7 R1e3
3q1rRN/2rBQn2/pb5b/1r5B/1RBK1QpR/1b2r1nB/1k3B1R/2q2N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 e4 Ke6 b4 d5 c4 g5 h4 f5 c5 d3 Ke3 a6 c6 g3 h5 g2 h6 d2 c7 f4+ Kd4 f3 h7 f2 b6 Bd6 b5 Qf8 b7 Qf6 b6 Qf4 Rh4 Nf6 Bc4 f1R Qe2 d1Q+ Nd2 Nbd7 b8R Ra7 b7 Re8 h8R Bf8 Rb1 Bh6 Rb4 Nh5 Nf3 Ng3 Rh2 Rf2 Nh4 g1B Ng6 Qf6 Rh7 Qd8 Nh8 Rff8+ Qe3 Qc2 Nf1 Bf2 Bd2 Qc1 Be1 Re7 Ra8 Bg1 b8Q g4 Bf2 Bb7 c8B Bc6 Qg5 Ba4 Bb7 Bb3 Bc6 Rb7 Qa7 Rb5 Qf4 Nf6 Rc8 Ne8 Ba8 Rc7 Qb7 Bg5 R7h4 Nd6 Qa7 Bh6 Bc6 Ke7 e6 Nf7 e5 Bd1 Kd3 d4 Bg2 Bb3 Qb7 Nf5 Ke4 d3 Bh3 d2 Qa7 d1R Ra8 Ke8 e7 Kd7 e6+ Kc6 Rb8 Rd3 e8B+ Rcd7 e7 Rc3 Be1 Bb6 Ra8 Kc5 Bf2+ Nd4 Rc8+ Rc7 Bd7 Rf3 e8B Rc3 Bg3 Ne2 Bf2+ Re3+ Kf5 Ne5+ Ke6 Ng3 Bh5 Ne4 Ra8 Kd4 Rb8 Kc3 Qb7 Nc5+ Kd5 Kb2 Kd4 Nf7 Qbe4 Ba5 Qe7 Ne4 Rb6 Ng3 Rg6 Nh1 Rg7 Ng3 Rg8 Bb6+
7N/B2rpQ1R/b1Bq1B2/2K2B1p/1r1nN3/nQ2r3/1b1N1n1N/2k1qrRB w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 b4 Ke4 g4 a5 f4 d5+ Kc5 h3 c4 h6 f6 a4 b6 a3 f7 d3 b5 h2 b7 d4 b6 a2 f5 d2 f6 Ke3 g5 d3 g6 Bg7 f8Q Rh7 f7 Bd7 Bb2 Be6 Nf3 Bf6 g7 Ra3 Bg2 Rc3 Qb3 d1N Nbd2 Nf2 Rag1 Nc6 b8B a1Q b7 Nb4 Ba7 Bc8 b8N Qe1 Nd7 Ba6 Ba1 Be5 Nf6 Nc2 Nfe4 Na3 Qe8 Qb8 f8N Bf6 Ng6 h5 Nh8 Nh6 g8B Rg7 Bd5 Rg4 Qf7 Nf5 Bc6 Nd4 Rf1 Bg7 Rhg1 h1R Nh2 Be5 Bf3 Rh4 Rg7 Qd8 Rfg1 Qd6+ Kb6 Bf6 c5 Rf4 Rh7 Bg7 Rg2 Rf1 Rg1 Rg4 Bh1 Ke2 Ndf3 d2 Bb2 d1R Nfd2 Re3 Ba1 Nf3 Be5 Nd4 Bf6 Qe5 Be8 Rf4 c6 Rh4 c7 Qd6+ Bc6 Rf4 Qbe6 Kd3 c8B Kc2 Qb3+ Kc1 Bh4 Ne6 Bd7 Bb2 Bf6 Nd4 Bf5 Ndb5 Nc3 Rb4 Nce4 Nd4+ Ka5 Qe6 Ndf3 Ndb5 Kb6 Rd7 Kc5 Nd4 Nfd2 Qd6+
n2BrNB1/1Rp2RNK/r2N3R/qQ1r2N1/r1Q1p3/2N5/q5q1/1bk1bR1n w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 g4 a5 f4 h5 Kg6 e5 d4 a4 d6 a3 f5 h3 g5 a2 b6 h2 f6 h4 d7 h3 b7 e3 d5 e4 d6 e2 f7 e1Q Qc2 Qf2 Qc4+ Ka5 b4+ Ka4 b5+ Ka5 b6 Nf6 Nc3 Ng4 Nf3 Ra6 Bf4 Qe8 d8N Qa4 d7 Bb4 Ne6 Re8 d8N Nd7 b8Q Qg2 f8N Nf2 b7 Nb6 Ng7 Na8+ Bd6 Be6 Be7 Qc2 Rd1 a1Q Kh7 Qca2 g6 Bf7 Be2 Bd5 Rhf1 h1R Ng5 h2 Ndf7 Rg1 Rd3 h1R+ Rh3 Be6 Rh6 Rh5 Bd8 Nh1 Nd6 Qe1 Nd1 Ka4 Nc3+ Ka3 Bg4 Bd5 Be6 Kb2 Bg8 Kc1 Nb1+ Qac2 Qc5 Rh3 Bf7 Nf2 Nh5 Qc3 g7 Kc2 g8R Rd3 Rg7 Qd2 Re1 Ba2 Bg8 Rd5 Rf7 Nh1 Ng7 Rf1 Qd4 Qc5 Rd1 Qa5 Qc4+ Kb2 Re1 Rf3 Rf1 Ra3 Re7 Qdf2 Rf7 Be1 Nc3 Ra4 Qa7 Kc1 b8R Rde5 Qb7 Bb1 Qbb5 Rd5 Rb7 Qa2
b6R/2p2qrq/R1Qn1N2/Bp1B2RQ/n1R3BK/k5rr/qb1RqN2/1B6 w - - 0 1 illegal: No possible last move, all moves rejected
k2r1K2/rpB3N1/3b4/1r1B1B1R/R1N1qnN1/2BQ1n1q/bpN2Nq1/3qQ3 w - - 0 1 illegal: No possible last move
N1q1R2N/pNQB1b1b/N4p1R/2Q2nk1/bK1QQ1n1/B1b3n1/2qN4/1r2r3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 c5 Kd2 h5 Kc3 h3 g4 f3 b6 h4 e5+ Kg6 b7 h2 b5 f2 d6 c4 b6 f6 g5 h3 d7 Qc7 d8N Nc6 b8Q Qe7 d5 Rh7 e6 Qf7 b7 Qe8 d6 Nh6 e7 Ng8 d7 Rh6 Nd2 Ne5 Ba3 Ng4 Qd6 Rb8 Kb4 c3 Ne2 c2 Qc5 c1Q Ne6 Rh4 d8N Bd7 Nc7 N8h6 Na8 Nf5 Qc7 Kh5 g6 Kg5 g7 Ba4 Nf4 Qc2 Bb5 f1N Bd7 N1g3 Ng6 Rh8 Re1 h1B g8Q h2 Qd5 Be4 Qdc5 h1B Rb1 Rh2 Nh8 Re2 Rb3 Bd5 Qa1 Bhe4 Qad4 Bf7 Rb2 Rc8 b8N Bd3 Rh1 Re1 Na6 Rb8+ Nb7 Qc8 e8Q Bd6 Rh6 Be5 Rb3 Be4 Re3 Bd3 Qdc4 Bb2 Q5d4 Nd6 Qcc3 Bh7 Qee4 Ndf5 Q3c5 Qc1 Qed3 Nh5 Ka5 Ng3 Re8 Ba1 Q3e4 Qc2 Nd6 Rbb1 Nb7 Bb2 Kb4 Bc3#
Q2B4/p2pRqR1/RNn5/7R/2rnqbK1/1Q1B1r2/bR2B1br/2bB1N1k w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 c4 Ke5 b4 h5 g4 h3 c5 h4 c6 h2 b6 e6 b7 d3 g5 d2 b5 h3 c7 Nc6 b8Q Nce7 b6 Qe8 f6 Rh7 f7 Bh6 f8R Kd4 g6 e5 g7 e4+ Kg4 e3 f4 Ke4 f5 e2 f6 e1B f7 Qd8 Nc3+ Ke3 Be2 Kf2 Nf3 Kg2 Qb3 d1R Ra6 Bg3 Re8 Rf1 f8R Bb7 c8B Nf5 Nd5 Bgf4 Rf7 Qe7 Nd2 Rf3 Nf1 Nd4 Bd3 Bc6 b7 Qf6 Ba3 Ne7 Nb6 Bd5 g8B Nec6 Rg7 Qf7 Be7 Bc1 Bh4 Bhf4 Bd8 Bc4 Re7 Rh5 Qb1 Ba2 Qb3 Rc5 Be2 Rcc3 Bh7 Rc4 Bhd3 Kf2 Rg1 h1B Bd1 h2 Rg3 Bg2 Rh3 Kg1 Rh5 h1Q Qc7 Qg8 b8R Qf7 Qe5 Qh2 Qe4 Kh1 Bb7 Nb4 Bd5 Nbc6 Rb7 Rc8 B3e2 Rc2 Bdc4 Rb2 Bcd3 Rc2 Rc5 Qh7 Qed5 Qe4 Rb8 Na5 Qa8 Rc6 Rb7 Rh6 Rcg5 Rh2 Rh5 Rc4 Rc7 Rb4 Rc2 Rc4 Rb2 Nac6
N1bN3R/3B2B1/1B3NB1/R1bq4/rn1nb3/3p1Qr1/kp2B1Qn/3n1bKN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 a4 d5 c4 e5 f4 b5 Kf2 g5 c5 g4 f6 Ke6 f5+ Kd7 c6+ Kd6 h6 Kc5 a5 e4 h5 d3 a6 Kc4 a7 b3 c7 b2 h7 b4 f7 d4 h6 b3 f6 Qd5 Nd2+ Kb4 Qe2 b1B Nc4 b2 Be3 Kb3 Nb6 d2 Nh3 d1B Ra5 g3+ Kg1 g2 Nf2 Ba3 f8N Nc6 f7 Nge7 Nfd7 Ka2 f8Q Rg8 h8N Rg3 h7 Nb4 Qff3 Nf5 Nf7 Bdc2 h8B Bd3 Nf6 Bb5 Kh2 g1N Nd8 Nh3 Bg7 B1d3 Qg2 Bc6 Qef3 Bda6 Nd1 Nf2 Kg1 Be2 Rh8 d3 Bc5 e3 Bd4 B8b7 Bc5 Nd4 c8B Ba6 Bd7 Bc8 Nb7 Qc4 Nd8 Be4 Nh7 Qd5 Nf6 Rb8 a8B Rb7 Rb5 Ra7 Bac6 Ra4 Na8 Nbc2 Bb6 Bc5 Ra5 Nb4 Qg4 B2f3 Bf5 e2 Bg6 e1N Bd7 Be2 Qf4 Qc4 Qf3 Qd5 Ne3 Nd1 Neg4 Nec2 Nf2 Nce3 Nh1 Ng4 Qf5 Nh2 Qf2 Bg4 Be2 Bh3 Qf3 Rg5 Qgg3 Bf1 Qgg2 Rg3
bqB2k1N/7R/3bnb1R/Kp1p3B/2B1rrRN/2RQ3b/1BQ5/rRr3n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 b5 f4 e5 h4 g5 a4 d3 c4 d6 c5 e4 h6 g4 h7 g3 a5 b3 Kc3 d2 Kb4 b2 a6 e3 h5 g2 a7 e2 c6 e1R f6 Be6 f7+ Ke7 h6 Re5 f5 Bc4 f6+ Ke6 c7 Ne7 c8B+ Qd7 Nf3 g1B Rh4 Bd3 Nc3 b1R+ Ka5 Bd4 Nd5 Nf5 Qc2 d1B Bb2 Ng7 Ne7 Rc1 Rb1 Bf5 Rg4 Re4 Nh4 Bf3 Neg6 Rg8 h8R Nc6+ Ka6 Be5 h7 Nd4 Ka5 Ne2 Qd3 Be7 f8R Ng1 f7 B5f6 Rd8 Re8 f8Q Rf4 Qc2 Bg2 Bd3 Bfe4 Bc4+ Bd5 Qd3 Bh3 Qc2 Nh5 Qh6 Kf7 Qg5 Qc6 Qgf5 Qb7 Qfd3 Ng7 Rd7 Ne6 Rc7 Rb8 a8B Bf3 Bd7 Rbc8 Rc5 Qb8 Be4 Bh1 Bf3 Rcd8 Bd1 Ba8 Bc8 d5 Bb3 Rd6 Rg3 Rf8 Rc3 Ng5 Bh5 Re8 Rg4 Bf8 Bc4 Ree4 Kb4 B8e7 Rf8+ Kg7 h8R Ne6 Re8 Bf8 Rh6 Ra6+ Re7+ Kg8 Nf3 Ra1 Nfh4 Nc5 Reh7 Ne6+ Kb3 Bb4 Nh8+ Kf8 Qf3 Bc5 Qfd3 Bcd4 Kb4 Bf2 Qa4 Bc5+ Ka5 Ba3 Qac2 Bd6+
2N2K2/Q1R1n1N1/1n1pp1B1/3nbbR1/q2RRn2/5b1k/1b1QBB2/1BB2r1r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ra5 Kf7 Kd2 Kf6 Kd3 h5 Ke4 h3 Kd5 h2 b4 a6 g4 h4 c4 d6 f4 d3 g5+ Kf7 b6 h3 g6+ Kf6 b5 d2 g7 Qd7 c5 Rh7 b7 Rh5 b6 Ra7 c6 Rh8 c7 Rh5 Nf3 Rh4 Na3 Rh6 Nc4 Ra8 Nh4 Rh5 Ba3 Nc6 b8B Na7 b7 Nb5 Ba7 Rb8 Bf2 Rh6 Be2 Rh5 Nb6 Na7 Qc2 Rh6 Rc1 d1N Qd2 h1N Rc6 Ra8 b8Q h2 Rb5 a5 Rc1 Ba6 c8B a4 Rc7 Ng3 Ra5 Bd3 Bb7 Nb5 Nc8 Nh5 Bc6 Ra6 Qa7 Nb2 Bb7 Nc4 Ba8 Kf7 f6 Rh8 Bb2 a3 Nf5 Kg6 f7 a2 Ba3 Qc6+ Ke6 a1B Bb2 Qe8 Be4 Nc3 Rd5 h1B Rd4 Bf3 Ba3 Nh6 g8B Bg7 f8R Be5 Ng7+ Nf5 Bh7+ Kh6 Bb2 Nb6 Bg6 Ncd5 Ba3 Qc6 Kf7 e6 Bb2 Nfe7 f5+ Bf4 f6 Kg5 Ba3 Kg4 Bb2 Qc4 Ke8 Be5 f7 Rh7 Rh8 Ra3 f8R Qa4+ Kf7 Rb3 Ba3 Rb1 Bb2 Re1 Bc1 Rh6 Rh7 Bc3 Rfh8 Rf1 Kf8 Kh3 Bef5+ Kh2 Be4 Bb2 Bef5 Nhf4 Be4 Rh4 Rh5 Ng2 Rg5 Bc2 B4d3 Rh3 Rhh4 Bb1 Bc4 Bf5 Rhe4 Ngf4 Bcd3 Rh7 Bg3+ Kg2 Bb1 Rhh1 Bf2+ Kh3
1N1B1bB1/1QRN1b2/1n3p2/Q2N2K1/2nNrrp1/Rp4N1/n2B1bk1/B1r4q w - - 0 1 illegal: No possible last move, all moves rejected
1QN3k1/7N/N2q2B1/1QBnr3/nRpN1pR1/3q1b1p/1b2Q1Nr/1Q1r2nK w - - 0 1 illegal: No possible last move
nkN3R1/3B3Q/1pBqp2R/1q1Bn3/rB4R1/r1n2q2/N2p1K1R/2b1Qb1B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 d5 a4 Kd7 f4 Kc7 g4 h5 g6 d3 f6 d4 g7 h4 g5 b6 c5 h3 c6 h2 a5 d2+ Kf2 b3 f7 b2 a6 d3 a7 Rh4 g6 Rh6 f5 Qd7 f6 Rh3 Nc3 b1N Ba3 Rh5 Bg2 Nh6 g8R Rd5 g7 Na6 Qe1 d1Q Nh3 d2 Nf4 Qc1 Na2 Nc3 Bb4 Nf5 Ng6 Rb8 a8B Nd6 Rg1 Qd8 Bh1 Nc4 Rg4 Rd4 Rh8 Qd6 g8B Re4 Rh6 Qb1 Bb7 Bg7 f8Q Ra8 Bd5 e6 f7 Kb8 Qg8 Nc7 f8R Ne5 Qh7 Ra3 Ne7 Na8 Rg8 Qd3 Rd1 Qb5 Rc1 Bf8 Ra1 Bd7 Nc8 Be8 Rd1 Bg6 Rb1 Rd4 Rd1 Bd3 Rb1 Bf1 Rb3 Ne2 Rbh3 Nc3 Ba5 Nc7 Bhe4 h1Q Bc4 Qb3 Rh2 Qd5 Ne7 Qbb5 Bb3 Na8 c7+ Ka7 c8B Kb8 Bc4 Rb3 Bd7 Qdc6 Nc8 Ba3 Bf3 Qd6 Bbc6 Bc1 B4d5 Ra4 Bb4 Rba3 Rhg2 Qh3 Rh2 Qa6 Bfe4 Qb5 Bh1 Qf3+
1R4nK/qQ1B1pNN/b5rb/kp2RQQ1/1b1q4/2BN1Qqr/pn6/3Q1N2 w - - 0 1 illegal: No proof kernel
1n3nQN/rnRBp2p/5r1q/2rqb2B/1Q2KN2/5B1N/1R1pb2B/k4BN1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 a5 c4+ Kd6 c5+ Kd5 b6 a4 f5 d6 g6 d3 Ke3 Kc4 g5 d5 f6 a3 f7 a2 g7 Ra4 b5 Ra7 b7 Ra3 g6 Qc7 c6 Nd7 b8Q Ndf6 b6 Qb7 c7 Ra8 Nd2+ Kc3 Rh2 Nd7 Qa4 Ngf6 g8B Bg7 f8N Qa6 b7 Ra7 Ne6 Nf8 Nf4 N6d7 Bf7 Be5 g7 Qh6 Ndf3 d2 g8B d1Q Rb2 Ra5 Bg6 Rc5 Bh5 Qb3 Rab1 a1R Nh3 Ra2 Qb5 Ra7 Nfg1 Qa2 Qa8 Nb8 Qb6 Bg4 c8B Be2 Bd7 Qc4 Bge6 Rg8 Beg4 Rg6 Bf3 Rf6 Ra1 Qb3 Ra6 Qa2 Qd6 Qa5 Rc6 Qb5 Rc7 d4+ Kf2 d3 Ke3 Qc4 Qb6 Qd5 Qd6 Na6 b8N d2 Nc6 Nb8 Nd8 Ra1 Nf7 Ra7 Rb1 Kc2 Bb2 Kb3 Ba3+ Ka2 Rb2+ Ka1 Nh8 Re6 Kf2 e3+ Kg2 Rf6 Kg3 Rc3 Qb4 Rc5 Kg2 Ba6 Kg3 e2 Kf2 e1N Ke3 Qe6 Ke4 Be2 Qd5 Qd6 Qg8 Nd3 Qbc4 Nc1 Bb4 Nb3 Bc3 Qe6 Qb4 Na5 Bd4 Qf7 Bf2 Nb7 Bg3 Qe6 Bh2 Qd5+
N2Bq1NB/2b5/4k1Br/bNBnpp1Q/K2B4/1b2b1r1/1pN2RRn/r2Q4 w - - 0 1 illegal: No proof kernel
n5B1/1bNq1r1B/3pRQRN/2b3n1/KQ1Q2Q1/1p2n1pQ/1B3B1b/4r1nk w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 a4 Kf6 f4 b5 c4 e5 Kc2 g5 Kb3 e4 h4 d3 a5 d2 c5 e3 a6 g4 c6 g3 a7 e2 c7 e1B h6 Qe7 h7 Qe6+ Bc4 Qe4 h5 Qe7 h6 Bf2 Ra6+ Bb6 Bb2+ Qe5 Na3 Bc5 Nf3 Bb7 c8Q Bg1 Nh4 Bh2 Qg4 d1N Re1 Qd4 Re8 Ne3 Re6+ Kf7 f6 Bc5 Rad6 Na6 Nf5 Nc7 Bd5 Rb8 a8B Qd2 Qh3 Kg6 f7+ Nf6 f8Q Rg8 h8B Rg7 h7 Rf7 Nh6 Qd4 f5+ Kg5 Ba1 Kf4 Bb2 Ne4 f6 Kf3 Bg7 Kf2 h8Q Ng5 Be4 Kg1 Bh7 Kh1 Bg8 Bf3 Be4 Na8 Beh7 Rb6 Qg4 Bb7 Qfd8 Rc6 Qf8 Rc7 Qh3 Re7 f7 Qg4 Rg6 Re4 Rde6 d6 Bgd4 Rd7 Qfd8 Re7 f8Q Rf7 Qb6 Qf5 Re8 Qd7 Ree6 Re5 Nb1 Re4 Nc3 Re5 Nd5 Re4 Nc7 Re5 Ka2 b3+ Kb1 b4 Qb5 Ng4 Bf2 Ne3 Qe7 Re4 Qd4 Re5 Qf6 Re4 Bc3 b2 Ka2 b1N Kb3 Nd2+ Ka4 b3 Bb2 Ndf3 Qg4 Ng1 Qh3 Nd1 Qg4 Re1 Qh3 Qd8 Qbb4 Ne3 Qd7 Rf8 Qdg7 Rf7 Qdg4 Qc8 Qfd4 Qd8 Qgf6 Qd7+
Nb4r1/R3B1n1/1qp1nnNR/1B2p2p/b5N1/3Q1Kn1/2R2NR1/1k1rNQ1r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 d4 Kd6 f4 e5 b4 a5 g4 c6 f5 e3 g5 a4 f6 a3 b6 a2 b7 h3 b5 h2 b6 h6 g6 Be6 g7 Qe7 f7 Bc8 Nc3 Bh3 Ba3+ Kd7 d6 Ke6 d5+ Kf5 d7 Na6 b8R Qg5 d8N Bg4+ Nf3 Bh3 d6 Nc5 d7 Qg1 b7 Bg4 Ne4 Nf6 g8R Ne6 Be7 Ng7 Nf2 Bh5 Rc1 a1N Ne6 Nb3 d8Q Nc5 Nc7 Nce6 Rc2 Ra1 Qe1 Rd1 Ra8 Bg4 b8N h5 Nd7 Kf4 Ra7 Kf5 Na8 Kf4 Ba3 Bd6 f8N Bb8 Ng6+ Kf5 Re8 Rf8 Be7 Rg8 Nh3 Ke4 Rf8 Qg3 Rg1 h1N Rg2 Qh2 Re8 Qg1 Qf2 Bf5 Ne1 Kd4 Rf8 Ng3+ Kf3 Bd3 Be2 Bb5 Qf1 Ba4 Bb5 e2 Nf2 Nh1 Rb2 Kc3 Rd2 Ng3 Rc2+ Kb3 Rf7 N7f5 Rh7 Nfg7 Ne4 Qb6 Nf2 Rf8 Rh6 Rg8 Rc4 Kb2 Rc3 Nh7 Nf6 Kb1 N6g4 Nf6 Qd7 Bb3 Rc2 Ba4 Ned3 e1R Qd6 Re4 Ne1 Rc4 Qdd3 Rb4 Nh2 Rh4 Nhg4 Rh1
4RQ2/rQp4p/b1B1R2B/4KNn1/b3n2q/3rN2r/pN1B4/k1bbNB1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b4 f5+ Ke5 a5 g4 h3 g5 a4 b6 h2 d6 a3 d7 f3 b7 f4 d5 a2 b5 f2 e4+ Kb4 b6 f3 g6 Qh4 d8Q Bh3 d6 Bc8 d7 Ra3 g7 Bc5 Ne2 Ra8 Qd5 Qg4 Qf8 Ka4 d8B Bb4 Na3 Be7 Bh6 Qd7 Nc2 Nf6 g8N Ra7 Ne3 Ka3 Ng3 Kb2 Re1 Na6 b8N Ne8 b7 Qa4 Nc6 Bg4 b8N Qc4 Nb4 Bc5 Qb7 Ng7 Bdg5 Ne6 N8c6 Bh5 Rg1 h1R Na5 Rh3 Nh1 Bg4 Bf4 Ng5 Ne7 Bb6 Nbc2 Nc5 N7f5 Qb4 Qf6 Rd8 Qf8 Rd3 Re2 Bh5 Ne1+ Ka1 Nac4 Be8 Rg3 Ba4 Nb2 Qc4 Rg4 Ba5 Rg3 Bd2 Rg2 Bc1 Rg1 Nge6 Rg6 Ng5 Re6 Bd1 Kf6 Qa4 e5 Qc4 Re8 Qa4 e6 Nce4+ Ke5 Qc4 Bg2 f1B e7 f2 Rb8 Rd8 e8B Rd3 Bc6 Qb4 Re8 Ba4 Rd2 Be2 Bf1 Bed1 Re6 Rc3 Rd8 Rd3 Bg2 f1B Rde8 Bfe2 Bf1 Qe7 Nec4 Qd8 Bd2 Qd4+ Kf4 Qf2+ Ke5 Qh4 Nce3 Ra3 Bg2 Ba6 Bf1 Rd3
2qkbR1q/np1N4/QppB2BB/3N3K/3q4/2bnNrN1/1Nr2Q1B/3q1R2 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 b4 Nb8 b5 Nc6 b6 axb6 Bc4 Nb8 Bd3 Nf6 Bf1 Ng8 Ke2 e5 Kf3 h5 d4 c6 g4 h3 a4 h2 f6 h4 f7+ Kd7 a5 h3 a6 Ke7 g5 Qc7 g6 Bg7 f8N Nf6 a7 Qd7 d6+ Ke8 d5 Ng4 Qd4 Nf6 Ne2 Qe6 d7+ Ke7 d8N Ne8 d6+ Kf6 d7 Ke7 Ng3 Rg8 Nf7 Bh8 g7 Nd6 d8B+ Ke8 Nh6 Bd7 Nhf5 e4+ Kg4 e3 f4 e2 Na3 e1Q Kh5 Qf2 Bc7 Nc4 Bd3 Qf6 Rf1 h1Q Ne3 h2 f5 Nb2 Nac4 Qd8 f6 Qc8 f7+ Ke7 Bd2 Na6 Bg6 Be8 Nd7 Nd3 Nb2 Rf8 Bb8 Qf6 g8N+ Kd8 Ne7 Nc7 N7d5 Nb5 Qf4 Qd6 Qf2 Bc3 Ra4 Qf6 Rf4 Qe4 Rf5 Qed4 Bf4 Qh8+ Bh6 Rb8 a8Q Na7 Be1 Rg8 f8B Rg7 Bd6 h1Q+ Qh2 Qg1 Rf8 Rf7 Qe2 Rf2 Qf3 Rc2 Qf2 Nb5 Qa3 Ra8 Qa2 Ra3 Qc4 Na7 Qa6 Ba5 Beb4 Rb3 Bbc5 Bc3 Be5 Ra3 Bcd6 Rb3 Ngf5 Qh1+ Bh2 Ra3 Ng3 Qf3+ Kg5 Qd1 Be4 Be1 Nec4 Ne5 Bg6 Rf3 Nce3 Bc3 Kh5 Nd3
b4RKn/QR1p2Nr/2kB2Q1/R3B1Nr/2p5/p1b1q1r1/nRBBR1p1/1n6 w - - 0 1 illegal: No proof kernel
BnRQbB1B/p1R4B/3N2p1/n6k/r4pR1/2BQq3/1b1p4/nR1NrbK1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 c4 Kf7 e4 d5 h4 d3 b4 f3 e5 d2 c5 d4 c6 f4 h6 Kg6 e6 d3 b6 Qc7 b5 Qd6 e7 Bf5 e8B+ Kh7 h5 Qf6 b7 Qe6 c7 Nc6 b8R Bd6 c8R Qc4 b6 Be4 b7 Qb4 Nh3 Qb2 Nc3 Ba3 Rg1 Bf5 Rb1 Na5 Ne4 Qb3 Rc7 Bd7 Bg2 Ne7 Nd6 Bb2 Rbc8 Nec6 b8Q g6 Bf7 Re8 Bg8+ Kh8 h7 Kg7 h8B+ Kh6 Bd4 Re4 Bc3 Ra4 Bh7 Be8 Bh1 Qe6 Rg4 Qe3+ Kf1 f2 Bg2 Ba1 Ba3 Bb2 Qdb3 d1N Q3b5 d2 Qd3 Ne5 Qb6 Rb8 Ba8 Nd7 Kg2 f1B+ Kh2 Nc4 Nf2 Na5 Kg1 Rb7 Qbd4 Nb8 Qf6 Rb5 Qd8 Re5 Bab4 Qe4 Ba3 Ne3 Nd1 Nc2 Bab4 Na1 Bc5 Re7 B5b4 Qe5 Ba3 Kg7 h6+ Kf6 Rh4 Kg5 Rg4+ Kh5 Bg8 Nac6 h7 Bc1 h8B Qe6 Bh7 Na5 Nc4 Bb2 Bd6 Qe2 Bdb4 Re6 Bf8 Qf3 Nd6 Re1 Rc6 Qh3 R6c7 Qe3+
Q1Q2b2/ppr5/b1B1B2b/3BR3/Nq2N1R1/nBK5/2ppkrrn/2B1NN2 w - - 0 1 illegal: No proof kernel
NNBK1B1Q/1r6/rbq5/2qk1pR1/4p1qQ/Rp4n1/Q1Q2p2/1b2nRRR w - - 0 1 illegal: No proof kernel
4R1r1/Q1Q4Q/3b2p1/2q1R3/1nQB1pRK/2N2kN1/2pqqpRn/rbQB4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 f5 d4+ Kf6 e5+ Kg6 b6 Kh5 e6 c5 b5 a5 e7 a4 e8R g6 d6 c4 b7 c3 b6 c2 d5 f3 Kg3 a3 d7 f2 d6 a2 Rh2 Nf6 Bb2 Be7 Nc3 Rg8 Be2 Ra5 Qc1 Re5 Rg2 Rg7 Bd1 Nd5 Nge2 Na6 b8Q Nab4 b7 Ne3 Qc7 Rg8 b8Q Ra5 Qc4 Ra7 Rb1 a1Q Qb7 Qda5 d8Q Be6 d7 Bc5 Qdc7 Bd6+ Qf4 Ra6 d8R Ba2 Re5 Qc5 Qc4 Nf1+ Kf4 g3 Re8 Nh2 Qa7 Kh6 h5 Ra3 Rg1 g2 Kg3+ f4+ Kh4 Ra5 Ng3 Ra6 Rge1 g1Q Rf1 Qh1 Rg1 Qf3 Rg2 Qe2 Qa5 Bb3 Q5c7 Qa4 Ra1 Qd7 Ra5 Ba2 Ba1 Kg7 h6+ Kf6 h7 Bb1 Rb5 Ra3 Bb2 Ra1 h8Q+ Rg7 Qh7 Rg8 Rg5 Qd8 Rg4 Qd7 Rf8+ Ke5 Ra5 Qd2 Re8+ Qe6 Qca6 Kd4 Qc4+ Ke3 Rb5 Qb6 Rc5 Qe4 Rce5 Qc5 Nce2 Kf3 Bd4 Qee3 Nc3+ Qee2
3n2QN/4k3/6pB/bR2NpR1/2RrnpQp/R4B2/R3bK1p/3qrQQb w - - 0 1 illegal: Other
1R1r1BQ1/1n1B1q1B/1B2Q3/qp2q1Nk/b1N5/1R6/1Nq1q1K1/n1QbQ3 w - - 0 1 legal: proof: g4 d5 e4 f5 gxf5 g5 h4 b5 c4 a6 cxd5 g4 f4 Bd7 e5 Bc8 f6 Bh6 f5 Bg5 hxg5 Kd7 b4 a5 f7 axb4 Rh3 Ra6 Rh1 Rf6 exf6 Qe8 Bh3 Qf8 Bf1 Qd8 Kf2 h5 f8Q e5 a4 c5 d4 e4 d6 c4 f7 h4 g6 h3 a5 c3 f6 Ke6 d7 Kf5 a6 c2 d5 b3 d6 h2 g7 Kg6 a7 b2 a8N Qa5 d8Q Rh3 d7 Na6 Qc5 Rh8 f8Q Nh6 g8B Nb4 f7 Nf5 Nc3 b1B Qh4 Nd6 d8Q Nb7 Ra3 e3+ Kg3 e2 Be3 c1Q Bh3 Ba2 Nb6 Bb3 Qfe8 Ba4 Rb3 Nc2 Nf3 e1Q+ Bf2 Qf1 Ng5 Na1 Qa3 Qb2 Nc4 Qc2 Qac1 Qe1 Rf1 h1Q Qed7 Qe7 Bb6 Qd5 Rf5 Qdd2 Bh7+ Kg7 Qh5 Qe5+ Rf4 Rg8 Qe1 Rf8 Nd1 Rg8 Kh4 g3 Ndb2 g2 Kg3 g1Q+ Kf3 Qgd4 Qhg4 Kh6 Rf6+ Rg6 Qg8 Qdd5+ Qge4 Kh5 Rd6 Qee6 f8B Qee5 Qc6 Rg7 Rd8 Rd7 Re8 Rd6 Be6 Bd7 Rb8 Bc8 Bef5 Qf7 Q4e3 Bd7 Q3f2 Be6 Kg2 Rd8 Bh3 Bg4 Qce4 Bd1 Bd7 Qef6 Qe6 Qe5 Qfe2+ Qdxe2+
NQr2b2/K1QnR3/1B2Rb2/2n3R1/1n3NnN/1r2q1k1/B2NR2b/2B2qr1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kd6 Kd2 f5 Ke3 h5 b6 a5 b7 c5 g5 a4 b5 h4 g6 c4 g7 c3 b6 c2 Nf3 g1R Rh2 g2 Nbd2 h3 Nh4 Nf6 g8R a3 Rg5 Nbd7 b8R a2 b7 Qb6 Re8 Bh6 b8Q+ Qc7 Re7 f4+ Kd3 f3 e4 Nc5+ Kc4 f2 Kb5 Bf8 Bc4 f1Q Qe1 Nh5 Qg3+ Qf4 Rb1 a1N Ba2 Rg8 Rb3 Ra6 Re3 Nf6 Re2 Ra3 Rh1 Na4 Ka6 h2 Qc3 Rb3 Qg3 Rd1 Rhe1 h1N Qh2 g1B Re6+ Kd7 d6 Qc5 e5 Qf1 d5 Qe3 Qf4 Nc5+ Ka7 Nf2 Qg3 N2g4 Qh2 Be7 Qc7+ Ke8 d7+ Kf7 d8B Nfd7 d6 Bf6 Qb8 Re8 Bb6 Rc8 Qf4 Bh2 Qc4 Na6 Qcc7 Nb4 Qcb7 Rd3 Q7c7 Nb3 Re7+ Kf8 e6 Nbc5 Rf7+ Ke8 e7 Rc3 Rfg7 Rb3 R7g6 Kf7 e8N Ke6 Rg7 Nde5 d7 Kd5 d8N Kd4 Ng2 Nd7 Ne6+ Kd3 Nef4+ Kd4 Ba3 c1B Re7 Bb2 Nh4 Bg7 Qc6 Bf8 Nc7 Ba1 Na8 Bc3 Ne6+ Kd3 Qcc7 Bf6 Nc4 Ke4 Bc1 Rd5 Nf4+ Re5 Nhg2 Kf3 Nh4+ Kg3 Nd2 Rd5 Ndf3 Rd1 Nd2 Qd4 R2e6 Qe3 Re2 Qff3 Ba3 Rg1 Bc1 Qf1
nN1n2rQ/1Q1nKR2/3N1bBB/Rn6/Bk2n1b1/1b2q1R1/2Q2b2/RQq5 w - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 Kd7 e4 Kd6 Ke2 c5 Ke3 f5 Kf4 h5 d4 g2 g6 a4 g7 g3 b6 a3 b7 c4 b5 h4 b6 a2 Rh3 c3 Bb5 c2 Na3 Nc6 Ne2 g1N Ba4 g2 Rg3 Qe8 Kg5 Nf6 g8R h3 Rg7 h2 Rf7 h1N b8R f4 b7 f3 Ra8 f2 Ra5 Be7 b8Q+ Kd7 e5 f1B d6 Nf2 d5 Ngh3+ Kg6 g1B Nd4 N2e4 Bh6 c1Q Nc4 Bf2 Qb1 Nhg5 Qdc2 Ne6 Kf5 Nc7 e6+ Kd8 d7 Na8 Kg6 Kc7 Nd6 Bc4 Kg7 Bd8 e7 Bb3 Kg6 Kb6 Kg7 Na7 Nc6 Nb5 Nb8 Rf8 Kg6 Rg8+ Kf5 Na3 Ke6 Nb5 Nc4+ Kc5 d6 Qf8 e8B Kb4 Re7 Qg7 Bg6 Qh8 Rf7 Be7 Bg7 Qhh6 Bf8 Qhe3 Bh6 Bb7 d8Q Nd7 Qc8 Bf6 Qc7 Bc8 Qb7 Nf8+ Kd5 Bg4 d7 Ne6 d8Q Bh4 Qdc8 Bf6 Qbb2 Nd8 Qf5 Nc6 Ke6 Nd8+ Kd7 Bh4 Qh8 Bf6 Rb1 a1N Nd6 Qa3 Rf1 Qac1 Qb1 Nc2 Rd1 Ne1 Qc2 Nd3 Rh1 Be5 Ke7 Ndc5 Rd1 Nd7 Re1 Qa3 Ra1 Qac1 Qb1 Nec5 Qfd3 Ne4 Qdc2 Bf6+
qn6/r2qn3/N1QR4/Nb2Q1Q1/QB2Bqn1/1R3n1R/4b1kq/1BK1b1B1 w - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 e4 Ke7 d4 Kd6 Kd2 c5 b4 f5 e5+ Ke7 b6 h5 e6 Kd6 e7 f4 e8Q h4 b5 h3 b7 h2 b6 c4 g6 a4 g7 g2 Ne2 g1N Ra3 f3 Nbc3 g3 Rb3 f2 Qc6+ Ke7 d6+ Kf6 d5 Ke5 d7 a3 d6 g2 Nd4 Kf4 Nd5+ Ke4 Nb4+ Kf4 Bb2 a2 Na6 a1Q Bd3 Kg3 Bb1+ c3+ Kc1 f1B Ba3 Nf3 Bb4 Ne7 g8B g1Q Bd5 Rh7 Be4 Kg2 Qc2+ Qf2 Qa2 c2 Qaa4 Qc7 d8Q Bg4 d7 Bg7 Qg8 Bb5 d8R Qd7 Qgd5 Bf6 Qf5 Bh4 Qg5 Qc7 Rd6 Qd7 Re1 h1N Ree3 Qg3 Rec3 Qh2 Rd3 Be1 Rdc3 Qe6 Rd3 Nd7 b8B Nf2 Ba7 Nb8 b7 Qf7 Rb2 Qe6 Nb3 Qd7 Na5 Rf7 Rbb3 Qah8 Qgd5 Bh5 Qe5 Ng4 Qg5 Qhc8 Bg1 Rg7 Kb2 c1Q+ Ka2 Bg6 Nc4 Qe6 Qcc5 Nd7 b8Q Nf5 R6d5 Qcf4 Qe5 Qa8 Kb2 Nb8 Qc6 Ra7 Rd6 Ne7 Bd5 Qd7 Na5 Bf7 Be4 Bfc4 Re3 Be2 Kc1 Bed3 Rh6 Be2 Rh3 Qf7 Red3 Qff5 Rd6 Qff4+
1qNR4/3Q4/Bn3Rq1/bR1K1n1r/3Q3B/q3pk2/NR3B1q/1Bbqr1Q1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 c4 Bb7 f4 Bc6 fxg5 f4 h5 Bd5 h6 Nxh6 cxd5 Ng8 Kf2 Kf7 d4 Kg6 b4 h5 b6 a5 b7 c5 b5 e5 b6 e3+ Kf3 c4 Ke4 a4 d6 f3 d7 c3 d5 a3 d6 c2 Nh3 f2 Nf4+ Kh7 g6+ Kh6 g5+ Kg7 Nc3 e2 Be3 e1B Nfd5 c1Q Rb1 h4 Rb2 a2 Ne7 a1Q Kd5 e4 Ba6 f1Q Na2 h3 Nc8 h2 Qd4+ Qff6 Bf2 e3 Rf1 Ba5 Bh4 Qdc7 d8R Nh6 d7 h1Q+ Rf3 Nf5 Rb5 Nc6 b8R Qcd1 b7 Ne5 Rb2 Qh2 Rff2 Kg8 g7 Kf7 g8B+ Kg6 Bh7+ Kh5 g6 Ba3 g7 Qg6 g8Q Nc4 Rb5 Bc1 Rfb2 Qe8 Qg1 Qg6 Rf8 Qcg3 d8Q Ra7 Qd7 Nb6+ Ke4 Kg4 Rf6 Bb4 Ra8 Ba5 b8B Rb7 Bf4 Rc7 Ke5 Kf3 Ke6 Rb7 Bfg5 Qb8 Bf2 Rc7 Bgh4 Rc2 Ne7 Re2 Nc8 Na4 Kd5 Re1 Bg8 Rh5 Bh7 Qb6 Na7 Qbc7 Rd8 Qb8 Nc8 Nb6+ Ke6 Qgg2 Nc3 Qa3 Na2 Qg7 Rh6 Nd6 Bb1 Nf5 Rf6 Na4 Kd5 Qgg2 Rf7 Qg6 Rf6 Nb6+
Nnb4q/1K4b1/1R4N1/NB2B2R/Np2Q1b1/2R1rR1q/1nQ2b2/r2n1Bk1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 d4+ Ke4 g4 h5 f4 e5+ d6 c6 d5 h3 b6 h4 g5 h2 g6 h3 b7 Qe8 Kb6 c5 f6 c4 f5 c3 d7 c2 d8Q Bh6 g7 Ra2 f7 Ne7 f8R Qg6+ d6 Bf4 g8B Qg7 f6 Bg4 f7 Bh5 d7 Nf5 Qh4 Bg4 d8N Ne3 Bb2 c1N Na3 Bh6 Nc6 Nd3 Qc2 Nd1 Nb5 Ke3 Nc7 e4 Rc1 Ra1 Be5 N3b2 Na5 Rh7 Ne2 Qh8 Na8 Bg7 Qe7 Kf2 Kc7 e3 Nc3+ e2 Na4 Rh5 Bh7 Rh6 Bd3 Re6 Qe8 Re7+ Kb6 Bc8 Bb5 Re6+ Qec6 Re8 Q2e4 e1B Rc3 Re6 Rd8 Re8 f8N Bg4 Ng6 Re7 Rg1 h1B Rgg3 h2 Rgf3+ Kg1 Rd5 Bf2+ Rdc5 Bg2 Qc2 h1Q Q6e4 B2h3 Ka7 Nd7 b8R Qg2 Rb6 Nb8+ Bc7 Re8 Rh5 Bc8 Be5 Bhg4 Rf8 Qh3 Rff3 Rd8 Nb3 Rd3 Na5 Bcd7 Kb7 Re3 Rc7 Bdf5 Rc3 Bc8+
2rnq3/1qBR1QBQ/2nr4/Qb1n1pR1/rQ4RN/2RK3N/B4r2/2b2k2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 Ke2 Ke5 b4 Kd4 d6 f5 b6 a5 b5 c5 e5 g5 b7 g4 h6 c4 b6 a4 h7 a3 h5 c3 e6 c2 d7 a2 h6 g3 e7 g2 e8Q Qf6 d8Q+ Bd6 Rh3 Qf7 Bb2+ Kc4 d4 c1R d5 Qf6 Nd2+ Kc5 Ndf3 Kc4 Qd2 Rc2 Qf7 Ba3 Nh4 Ne7 d6+ Qe6+ Be5 Qd5 d7 Ra6 Bc7 Nbc6 b8R Bc1 b7 Re8 Rb1 a1R h8Q R1a4 h7 Rb6 Rd3 f3+ Ke3 f2 Nh3 g1Q Rb4+ Kc5 Rdb3 Qg6 Bc4 f1N+ Ke2 Qdg2+ Kd3 Ne3 Rc3 N3d5 Qhg7 Rb2 h8B Rba6 Qf4 Rf2 Qh7 Qh1 Bg7 Rh8 Qff8 Qe8 Qf7 Rg8 Ra8 Rb6 b8Q Ba6 Qe5 Rf8 Qb7 Rg8 Qdb8 Nd8 Ra7 Rd6 Q7a8 Nb7 d8R Nc6 Rd7 Nbd8 Qf4 Nb7 Bf8 Qd8 Qfg6 Qc8 Re7 Qg1 Bd8 Nd4 Rg7 Qe1 Qf7 Nc6 Rg5 Bb5 Bg7 Qd7 Ba5 Rc8 Qe4 Nbd8 Rc7 Rf4 Kc2 Rf2+ Qe2 Qe7 Ba2+ Bc4 Rcb7 Qc7 Qa6 Qb6 Rd7 Qb5 Bf8 Kd4 Bc7 Qb6 Qa5 Qb5 Rcg3 Qb6 Rbb3 Ba6 Rbc3 Qa7 Qb1 Qb7 Qb3 Bd2 Qeb5 Qe8 Rg1 Ke4 Qb2 Kd4 Bg7+ Ke4 Rc4+ Ke3 Q2b4 Ke2 R1g4 Kf1 Kd3 Bc1 Rc3 Bxb5+
3R1Br1/1N2QQB1/1BnKrrq1/1rNR4/3R2nB/Nrkp3b/r7/2b2R2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 d5 f4+ Ke4 c4 a5 b4 g5 h4 g4 h6 a4 f6 a3 f7 g3 f5 d3 h5 d2 h7 g2 f6 a2 h6 d4 b6 d3 b7 Be6 b5 Qa5 Na3 Bd5 Nh3 g1R Nf2+ Ke3 Qe1+ Kf4 Rh4+ Kf5 Bh3+ Rg4 Ne4 d1R Be3 Qd2 b6 Nc6 b8B Ne5 b7 Bg7 f8B Qg2 f7 Nc6 Bg3 e5 b8R Be6 Rd8 Rb8 Rd5 Rb5+ Kd6 Rdb1 Bb6 R1b3 c5 Nf6 Qe3 Rg8 h8R Bd7 h7 Bh6 Rf1+ Bf4 Bg7 a1R f8B Ra2 Bf2 Bh6 Qe2 Bc1 Qe1 Na5 c6 Qg3 c7 Nc6 c8N Be6 Bg2 Rf4 Nc5 Qg6 Bh3+ Ng4 Qe3 Kg5 Qe2 Rf6 Qe1 Kf4 Qb4+ Kf3 Qc4 Nh6 Rhd4 Ke2 Bh4 e4 Bf5 Bd7+ Be6 Ng4 Qb4 Ke3 Qe1+ Re2 Qf2+ Kd2 Qf5 e3 Qh5 Qh6 Qf7 Qg6 Qe7 Rb2 Bh6 R2b4 Kc7 Rf4 Nd6 Kc3 Bf7 Rf6 Ndb7 Rg7 Bg8 Be6 Kd6 Nge5 Bf7 Bh3+ Be6 Ng4 Rg8 Qf5 h8Q Ra2 Qh7 e2 Qg6 e1R Qgf7 Qg6 Rh8 Rh7 Bfg7 Rbb2 Rd8 R2b3 Bf8 Rh8 Bhg7 Rg8 Re5 Rc2 Rh5 Ra2 Rhd5 Rexe6+
4qr2/Q1rp3r/N2Qb3/4nRQ1/4NB2/n2bRQRN/7R/Bkbr2bK w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kf1 a5 Kg2 e5 c4 Ke7 b4 Kd6 h4 d3 h5 a4 b6 a3 b7 d2 c5+ Kd5 f6 Kc4 h6 Kd3 b5 e4 f7 e3 c6 a2 g7 e2 b6 e1B h7 g3 c7 Ne7 g8R Bg7 f8R Ng6 Qf3+ Kc2 Nh3 d1B Rh2 Bb2 Bf4 Ne5 g6 Qe8 g7 Nc4 Nd2 Na3 Kh1 Bc1 Rf5 Nc6 b8N Bf2 b7 Bg1 Na6 Ne5 b8Q Ra7 Rb1 a1R Rb3 Bb7 Rd3 Bd5 c8Q+ Rc7 Qcb7 Be2 Re3 Bd3 Q7a7 Be6 Qbb6 Rb1 Qd6 Rb8 Ne4+ Kb1 Rgf8 Nac4 g8Q Na3 Qg5 Rbc8 R8f6 Rf8 h8B Rf7 Qd5 Rh7 Qd6 Bf2 Ng1 Nec4 Qe5 Qg6 Qgh5 Rf8 Nh3 Qf7 Qd6 Qe8 Re2 Bc5 Rg6 B5e3 Ba1 Ne5 Rg4 Bb6 Qg5 Bbe3 Re1 Bc5 Rd2 Bf2 Re3 g2+ Kh2 g1R Rg3 Re1 Ra2 Bg1+ Kh1 Rf1 Rh2 Rd1
3k4/Q2r2K1/1b1RQ3/R2r2NB/2Nnb2p/Q2qq2q/2bB2BB/qQ1q1R2 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 e4 c5 Ke2 f5 Ke3 a5 Kf4 h5 Ke5 a4 b4 g2 d4 g3 d6 c4 d7+ Ke7 b6 f4 d5 a3 b5 f3 b7 a2 b8Q c3 b6 f2 d6+ Kf7 b7 h4 g6+ Kg7 Nf3 g1Q Bg2 f1B Na3 c2 Bd2 c1Q Qa7 Qh2 b8B Bb7 Ng5 Rh7 Nc4 Bd3 Rf1 Qh3 Qda4 Bd5 Qa3 Nh6 Bc7 Kg8 g7 Nf5 Bb8 Bc6 Ke6 Qe1 e5 Bce4 Bc7 Qe2 Bb8 Qb6 Kf6 Bc2 d8R Qbe3 d7 Nd4 e6 Q2d3 e7 Rh5 e8B Bc5 Ne6 Rd5 Bh5+ Kh7 Kf7 Bb6 g8Q+ Kh6 Bc7 Rc8 Bd6 Rc7 Ng5 Rb7 Kf6 Rc7 Qe6 Rb7 Bgf3 g2 Bh2 g1Q Bg2 Rc7 Rab1 a1Q Rb5 Qd1 Ra5 Qa1 Rc8 Qh1 d8Q Rcd7 Rc6 Qhg1 Rd6 Qh1 Rf4 Qhc1 Rf1 Qd1 Nf3 Kh7 Qdb8 Kh6 Qbb7 Kh7 Ng5+ Kh8 Qe7 Kg8 Qe5 Kf8 Qe6 Bc5 Qb1 Bb6 Qe5 Ba4 Qf5 Bc2 Kg6+ Ke7 Kg7 Qg1 Qg4 Qge3 Qe6+ Kd8+
nN2q3/2BR2N1/n4Rq1/N1R2R2/bQQ3BN/4k3/2qnprb1/2KBbn2 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 f4 d5 fxg5 f4 e4 dxe4 g6 Ra6 g5 Rd6 h3 Rd5 cxd5 Bxh3 Qc2 Bf5 Qd1 Bc8 d4 Kd7 Kd2 Kd6 b4 e5 b6 c5 g7 h5 b7 f3 g6 a4 b5 h4 b6 c4 Rh3 a3 Be2 f2 Qb3 a2 Bd1 Nf6 g8Q Ne8 g7 Bd7 Na3 Qf6 Rc3 h3 Nf3 h2 Nh4 Na6 b8N h1B b7 f1N+ Kc2 Nec7 Bf4 e3 Kc1 e2 Qb4+ Nc5 Qf7 e1Q g8B Na8 Rc2 c3 Nc4+ Kc7 Na5 Kd6 Bh7 Ba4 Bf5 Qg6 Bg4 Bg2 Rb1 a1N Qg8 Ke7 d6+ Kf6 d7 e4 d8N e3 d5 Na6 Bc7 Kg5 d6 Be7 Qgb3 Rf8 d7 Rf2 Q3c4 Bd6 Rbb2 Bg3 Rb3 Rf3 Rf2 c2 Rc3 Rf7 Rf6 Nb3+ Kb2 Nbd2 Kc1 e2 Rcf3 Qf2 Rc3 Qe3 Ne6+ Kh6 d8R Be1 Ng7 Kg5 Rd7 Qe8 Nbc6 Rf8 b8R Rf7 Rc8 Rf8 Rcf3 Rf7 Kb2 Rf8 Nb8 c1Q+ Ka2 Qc3 Rf2 Qcd3 Kb2 Qde4 Kc1 Rf7 Rb6 Rf3 Rbd6 Kf4 Rf6+ Ke3 Rf5 Rg3 R2f4 Rf3 Rf6 Rf2 R4f5 Q4e6 Bg3 Qd5 Rc5 Qde4 Bc7 Qc2+
2nkB1qR/1nr1r1N1/1R2b3/1QB4N/1K2nr1p/2Q1BB1q/Q6r/5nRQ w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 h5 Kd2 f5 Kc3 c5 e4 a5 b4 c4 b6 g2 d6 f4 e5 a4 e6 a3 b5 a2 d5 g3 d7+ Ke7 d6+ Kf8 g6 f3 e7+ Kg7 e8B Kf8 b7 f2 b6 Nc6 b8Q Ra4 b7 Qg5 d8Q Na7 d7 Rh6 Qa5 Ke7 g7 Qg4 Na3 Nf6 g8Q Qh3 Ne2 g1Q Nc2 g2+ Ne3 h4 d8R Be6 Nf4 Nc8 Nh5 Rh7 Rb1 a1N Rb6 Nb3 Be2 f1N Bf3 Nc5 Bd2 Ra2 Kb4 c3 Qa3 c2 Qc3 c1R Qbe5 Qf2 b8B g1R Ba7 Nb7 Qb5 Qfg3 Qe1 Rg2 Rg1 Rh2 Qd1 Qb8 Qg2 Ne4 Nf5+ Kf8 Qf2 Re7 Be3 Rac2 Qg2 Rf2 Nfg7 Qbg3 Qh1 Qg6 Qde1 Qh7 Qb2 Rcc7 Qa2 Qh8 Qc3 Qg8 Bg4 Rf4 Bf3 Bd5 Rdd6 Bb3 Rh6 Be6 Rh8 Red7 Rd6 Ke7 Bac5 Kd8 Rb6 Re7
2k1nb2/pbq4B/B3R2Q/6NR/1R1Qq1K1/1R3BQN/r1rr1Q2/5rqq w - - 0 1 legal: proof: c4 g5 f4 d5 cxd5 e5 b3 exf4 a4 b5 axb5 g4 Ra2 g3 Ra3 Nc6 Ra1 Nb8 h4 Qg5 h5 Qh4 Bb2 Ba6 Bd4 Nd7 Be3 Ne5 Bf2 Ng6 hxg6 Ke7 Qc1 gxf2+ Kd1 Bg7 g4 Bf8 Kc2 Kd7 Qd1 Qd8 g5 Ke8 Kc1 Bc8 d4 Kd7 Kd2 c5 e4 f5 Ke2 h5 Kf3 c4 g7 c3 b6 h4 b4 c2 d6 c1Q b7 h3 b8R h2 d5 Ba6 e5 Qc2 e6+ Ke8 g6 Qc4 d7+ Ke7 b5 Qb4 b6 Nf6 g8Q Qe8 b7 Bh6 g7 Qa3+ Nc3 Qf8 Qc1 Qa5 Nh3 Qb4 Ne4 Qe1 Neg5 Ne8 d8R Qe5 Ra4 Qf7 Rb4 Qg6 Bd3 Qc7 Rd6 Rh7 Qc2 f1R+ Qf2 Rd1 Qh8 Rd2 g8B Bf8 Rb3 Rh4 Bh7 Rg4 Rdb6 Rg2 R6b4 Kd6 e7 Kd7 d6 Qe6 Re1 h1Q Qhd4 Qg6 Re6 Qg1 Rc8 Rc2 b8Q Bb7+ Be4 Ra2 Qh4 Rgc2 Qh6 Qd8 Rc5 Qc7 Qd2 Qh1+ Kf2 f3 Kg3 f2 Bf3 f1R Qf2 f4+ Kg4 Qe4 Rcb5 Kc6 d7+ Nd6 Qe8 Rd8 Qf7 Qg1+ Qg3 Qh1 e8B Qg1 Bg2 f3+ Qff4 f2 Bf3 Qb8 Bh5 Kc7 Be2 Qgh1 Rf5 Qc8 Ba6 Kb8 Rd5 Qc7 Rde5 Ne8 Ra5 Rc8 d8Q Qg1 Qd7 Rd8 Qd4 Kc8 Rc5 Rfa1 Rd5 f1Q Rde5 Qfe1 Rc5 Qeh1 Qff2 Qee4+ Nf4 Rd5 Qdd2 Rd4 Nf7 Rcc4 Kg5 Qh3 Bf3 Qhg2 Kg4 Q2h2 Rh5 Qhh1 Ng5 Rcc2 Qde3 Rdd2 Qd4 Qee5 Nfh3 Rf1 Bd5 Qe3 Bf3 Qe4+
1b2nkn1/K5n1/Q3Q2B/5NBr/Q2Q1n2/1Rrp1rRb/RN2r2r/N2N4 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 exf5 b5 axb5 Nh6 g4 Nc6 g5 Nb8 g6 Ng8 f6 Qb6 f5 Qe6+ Be2 Qf7 gxf7+ Kd8 Bg4 hxg4 Kf2 a5 h4 g5 c4 e5 b4 d5 b6 a4 c5 a3 h5 d3 Ke3 a2 b7 e4 Kd4 d2 c6 g3 h6 g4 c7+ Kd7 b5 g2 b6 g3 h7 e3 Ne2 g1R Qa4+ Kd6 Nec3 d1N Nd2 g2 Rh3 e2 Nb3 e1N Bg5 Rh1 Rg3 Be6 c8Q Be7 f8B g1R f7 Rg2 f6 Rc2 Bfh6 Rf1 f8Q Bh3 f7 Rf6 Qfe8 Ne3 f8N Nd3 Ne6 Rd2 Ng7 Na6 b8N Nc7 b7 Rh2 Nc6 Rf3 b8R Nf4 Nca5 Ra6 Qeb5 Ne8 Nd1 Rc6 Qba6 Bd8 Qg4 Bc7 Nf5+ Kd7 Rb6 Bb8 Nc4 Ke6 Ncb2 Kf7 Rb5 Re6 Kc5 d4 Rb4 d3 Kb5 Re7 Kb6 Rc7 Rb5 Rc3 Kb7 Nc4 Ka8 Ng7 Rb6 Nd6 Rb5 Bc7 Ka7 Nde8 Rb8 Nfh5 Qge4 Kf8 Qee6 Bd6 Ra8 Nf4 Rb1 Rcc2 Na1 Rce2 Rc1 Bc7 Rc3 Be5 Ra3 Bd6 Rb8 Bc7 Rbb3 Bd6 Nc2 a1R Ra2 Rc1 Na1 Rc3 Nfe3 Bc7 Qac8 Nf6 Qca6 Rg8 h8Q Bd6 Qh7 Rhg2 Qhe4 Rh8 Qed4 Rh2 Nf5 Ng8 Bd8 Ng6 Bd2 Rh5 Bh6 Nf4 Bdg5 Bb8+
q1NrQ2N/2Q4Q/B1Kn4/5rq1/3NB1qB/R2Qq2n/r1nR2rp/1Bk5 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kd2 b5 axb5 f5 Nh3 f3 Ng1 f2 Nc3 g5 Ra4 f4 Nb1 Bd6 Ra1 Bb7 Bh3 Bf3 Bf1 Bg4 h3 f3 Ra3 Bf4+ gxf4 Bf5 Ra5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qe7 Ra3 Qg5 Ra1 Qd8 Kd3 Kf7 Ke4 Kg6 Kd5 a5 e4 h5 c4 d3 b4 h4 f5+ Kf6 e5+ Kf7 c5 d6 f6 Kg6 f7 h3 f8N+ Kg7 g5 g2 b6 h2 b5 d2 g6 Kh6 g7 Kg5 e6 Kf4 e7 Ke3 e8B a4 b7 a3 c6 a2 c7 Nh6 g8Q Nc6 b8Q Nf7 c8B Nd4 b6 Nc2 b7 Qg5+ Kc6 d5 Ba6 f1R Ng6 f2 Na3 d4 Ne2 g1N Bf5 d3 Nd4 Nh3 Qh7 Rg1 Be4 f1R Qc7 Nd6 b8Q Rf5 Nab5 Rg2 Na7 Rg8 Bf7 Rd8 Nc8 Ra7 Nh8 Ra8 Rb1 a1Q Rb3 Qa2 Bb2 Qa5 Qb1 d1Q Ra3 Kd2 Ba2 Qdg4 Qf1 Qf3 Bb1 Qfe3 Qf3 Ra7 Re1 Ra8 Re2+ Kd1 Bc3 Kc1 Be1 d2 Bh4 d1Q Rd2 Ra7 Qb5 Qde2 Qfh5 Qeg4 Qd3 Qd5+ Kb6 Qa8 Qe8 Rb7+ Kc6 Rb2+ Qb7 Ra2 Qc7 Qb8 Qh7 Qa7 Qbc7 Qa8+
Q1q1B3/3bN2p/K2kq3/B1R5/3Nn1N1/1Bq1QBRb/nN3b2/bRn1n3 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 h3 a5 Be3 g5 Bd2 Nf6 Bc1 Rg8 h4 Ra6 Nc3 Rc6 Nb1 Rc5 Qd2 Rd5 Qd1 Rf5 gxf5 g4 Rh2 Rg5 hxg5 Ba3 Rh1 Bf8 Kd2 Ke7 Kd3 d5 c4 g3 e4 f2 b4 g2 c5 f3 g6 a4 b6 a3 e5 a2 b5 Kd7 b7 Bg7 e6+ Ke7 b6 Qf8 c6 Nbd7 b8N Ne8 b7 Nef6 c7 Bh6 g7 Qh8 g8B Bf8 Qb3 Bg7 Nd2 Ne4 f6+ Kd6 e7 Bh6 e8B Be3 Rb1 a1B Nh3 g1N f7 Ne2 Bg2 f1Q f8R f2 Rf5 Qe1 Bf3 f1B Rg1 Bf2 Nc6 Qe5 b8N Qe6 Ne7 Bg2 Nbc6 Ndc5+ Kc2 Bf1 Qe3 Nd3 Kb3 Bd7 Ka4 Bg2 Bb2 Nec1 Kb5 Bf1 c8Q Bg2 Nf4 Bh3 Nb3 Qc3 Qa8 Ne1 Ka6 d3 Rg3 d4 Ne5 d2 Ng4 d1N Rc5 d3 Nd4 d2 Ba3 Nb2 Nd3 d1Q Bb4 Na2 Ba5 Qdc2 Nc1 Nbd3 Bgf7 Nf4 Nd3 Ne2 Nb2 Nec1 Bg8 Qg6 Bb3 Qe6 Rh5 Qc7 Rg5 Q2c3 Rc5 Qc8+
2b3q1/kb1B1pb1/8/K4rQB/1rbNN1qB/Q1N1N1rB/1q6/1RRRr3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Qd3 cxd4 Qd1 h4 h3 g5 Na3 Nf6 Nb1 Nh5 Nc3 Nc6 Nb1 Ne5 gxh5 g4 Bg2 g3 Bf1 Ng4 hxg4 Ba6 Qd2 Bb7 Qd1 Bc8 Kd2 d5 e4 Kd7 b4 Kc7 c4 Kb7 c5 a5 g5 d3 Kc3 h3 b6 d2 b5 h2 c6+ Kb8 h6 a4 b7 g2 e5 f3 c7+ Ka7 b8R a3 g6 f2 g7 a2 g8Q Bg4 c8B Be7 e6 Ba3 h7 Be7 Ne2 g1Q Bh3 f1R Ng3 Rf6 Qg5 Qdb6 Qb3 d1Q Qa3+ Qa6 Ne4 Rd8 h8N Rf5 Ng6 Rd7 Nf4 Bf6+ Kb4 d4 e7 d3 e8B d2 Nbc3 Rd3 Ng2 Bg7 Bed7 Rg3 Ne3 Qf2 Rf1 h1B Rg1 Qdf3 Rd1 Qg1 Rb1 a1R Bb7 Qgg2 Rc8 Rb8 Bd5 Qgf2 Bc4 Bg2 Be2 Bf1 Bb2 Qf4 Bf3 Bc4 Be2 Bf3 Rc5 Qg4 b6+ Ka8 b7+ Ka7 Rdc1 d1B Rd5 Ba4 Rdd1 Bg2 Bf3 Qg6 Be2 Qh7 Bf3 Qg8 Be2 Bd5 Ka5 Bb5 Bf3 Ba6 Be2 Bf1 Bf3 Bfc4 Be2 Re8 b8N Bc8 Bf3 Re6 Be2 Rb6 Nc6+ Ka8 Nd4 Ka7 Bf3 Rb4 Be2 Qgf4 Bh5 Bdb7+ Ncd5 Qh4 Bc3 Qb2 Be1 Qg4 Bf2 Rg2 Bh4 Rg3 Re1 Qb3 Rb2 Bc6 Rcc2 Rf6 Ndc3 B6b7 Rf1 Rc1 Rb1 Qb2 Rh1 Rcf1 Rcc1 R6f2 Rg1 Re2 Rh1 Rf4 Rhd1 Re1 Nf2 Rff3 Nfe4 Rf5+
2NK3Q/1kB1R3/brb4p/n4bq1/1pR4N/Qn1rq1Q1/2N1NBQ1/6Rq w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 d5 cxd5 g6 b4 axb4 f6 Kd7 f7 Bg7 Ba3 Bh6 Bc1 Bf8 f4 Ra7 g4 Bg7 h4 Be5 g5 Bd4 f5 Be5 f6 Nh6 Bd3 Ra8 Bf5+ gxf5 g6 Ng8 Qb3 Bf4 Qd1 Bg5 hxg5 Ra5 Rh3 Ra7 Rh1 Ra8 Kf2 c5 Kg3 Kc7 Kf4 b5 Ke5 e6 f8R f4 a4 h6 d4 b3 d6+ Kb7 d5 b4 d7 b2 Kd6 c4 a5 c3 g7 e5 a6+ Kb6 g6 f3 a7 f2 f7 f1B Qd3 c2 Ne2 e4 Be3+ Kb7 Re8 c1Q f8N Qc3 Rh4 Qd2 Re7 Bg2 Bf2 e3 Rc4 Qe8 d8B+ Nd7 Bc7 Bf3 Na3 b1B Nc2 Bh1 Qa3 Rb8 a8N Nc5 Nb6 Bf5 Nc8 Ba2 Rg1 Nb3 Ne6 Qb5 N6d4 Bg2 Nf3 Qa5 Nc3 e2 Nh4 e1Q Ne2 Qa8 Na7 Bb1 Nc8 Bd3 Kd7 Qg5 d6 Bc6+ Kd8 Qed2 d7 Qde3 Rf4 Ba6 Rc4 Rh7 Ncd4 Bf5 Nc2 Nf6 g8Q Na5 g7 Ne4 Qh8 Nd2 g8Q Ndb3 Qd5 Rg7 Qg2 Rg6 Qe5 Rd6 Qeg3 Rd3 Ke8 Bd5 d8Q Bde4 Qd4 Bc6+ Kd8 Qa7 Qgd6 Qh3 Qh8 Qae3 Rd4 Qh1 Qdg3 Ka8 Rd1 Rb6 Rg1 Bd7 Rf4 Kb7 Rc4 Bf5+
Bq3Q2/K2k1B2/1B2p1bR/1NQ3nN/Q2qp3/B3r3/1rQN2q1/b1nbR3 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 d5 cxd5 f5 e4 fxe4 a4 axb4 axb5 Bg7 Qf3 Bh6 Qd1 Bf8 Ke2 h5 Ke3 b3 Kd4 b2 Kc5 c6 g4 h4 d4 h3 f4 h2 g6 Rh7 g7 Rh3 d6 Rh8 d5 Qa5 f5 Qa3+ Kb6 Kd8 f6 Ra7 f7 Rd7 g5 Rh4 g6 Qa2 Qa4 Rh3 Bg2 Rb3 Ne2 Nh6 g8B Bg7 Nd2 b1B Ba3 Re3 Nc3 Qc4 Re1 Rc7 f8Q+ Kd7 Bf7 h1Q Qc2 Bb7 Ka7 Na6 b6 Nb4 Nb5 Na2 Bf3 Bh8 g7 Qg2 g8N Nc1 Ra2 Ba8+ b7 Ba1 Qa4 Rc8 b8Q Qd4+ Qb6 Rb8 Qc5 Bc2 Rb2 Bd1 Rb1 Ng4 Rh1 Nf2 Rh6 Nh3 Qc2 Rb6 Qa4 Bb7 Qac2 Ng5 Qa8 Bc8 Nf6+ Kd8 Nh5 Kd7 Nc7 Rbb3 Nb5 Ba6 Kb6 Bc8 Qa4 Rb2 Ka7 Kd8 Qb4 Bf5 d7 Bh7 Qba4 Bg6 Nd6 Kc7 d8B+ Kd7 Bb6 Qg3 Be2 Qg2 Nb5 e6 d6 Qh1 Bc4 Qg2 Qf5 c5 Bd5 c4 Ba8 c3 Qc5 Be2 Qd3 c2 Qdb3 Nd3 Re1 c1Q Qd1 Qcc3 Qdc2 Bd1 Nc7+ Kd8 d7 Qd6 Nb5+ Ke7 Ka6 Nc1 Ka7 Qb4 Be8 Qd4 d8Q+ Kf8 Qb8 Ke7 Bf7 Kd7 Qf8 Qb8+
b4B2/3r1kN1/4n2Q/BR1rq3/n1bQ1rpN/4Q1Kp/2RRbBr1/3R2Q1 w - - 0 1 legal: proof: g4 e5 d4 exd4 a4 f5 h3 g5 Bg2 b5 axb5 c5 Be4 Be7 gxf5 c4 h4 g4 Bd3 Bg5 hxg5 cxd3 b4 a5 f4 d5 Kf2 h5 e4 h4 c4 h3 f6 a4 e5 d2 c5 d3 b6 d4 c6 a3 e6 a2 f5 Ra3 b5 Qd7 e7 Ra5 b7 Rh7 c7 Ra7 g6 Nc6 b8B Nh6 b6 Ne5 g7 Rb7 Nc3 Qa4 g8Q+ Kd7 e8Q+ Kd6 f7 Qa5 f6 Nf5 Nf3 Nd7 Ba7 Nc5 Qh8 Na4 Nd5 Ng7 Ne7 Be6 c8R Rd7 f8Q Qg5 Qe1 d1B b7 d2 b8R d3 Nh4 Bf3 f7 d1R Rh2 d2 Rb5 Ba8 Kg3 Qd5 Rab1 a1R Rc2 Qe4 Bb6 Bc4 Ba5 Ke6 Nef5+ Kf6 Qf2 Rh1 Rg2 d1B Be3 Rh5 Qg1 Rh2 Rgd2 Bde2 Rf1 Ra3 Rfd1 Rad3 Qc5 R3d5 f8B Rh6 Qe5+ Kf7 Bf2 Ne6 Qcd4 Rf6 Ng7 Rf4 Qh6 Qf5 Qee4 Qe5 Qee3 Rg2+
1QQ1b1KR/nBRq1rN1/N1RB3B/2p3Q1/3n2R1/n1n1p1r1/5kB1/1b2b3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 e5+ f6 h5 Kg6 c5 Kf7 b3 g4 b2 g5 h3 b6 e4 g6 h2 f5 h4 g7 h3 d6 Nd7 b7 Qb6 b8Q Rh4 Na3 b1B Ne2+ Kd3 Nc2 Bb7 Bg2 Ne7 g8B Qd8 Ra4 Bc8 Ned4 Qb6 Qg1 Ra6 Ne6 Ke2 d4 Ra7 d5 Qb3 Ng7 Qd3 Nb4 Rg4 Na6 Nb6 d7 Nc6 d6 Nc4 Bh6 Be7 d8R e3 Rd7 Rg3 Rc7 Na3 Rg4 Bd7 Bh7 Bd8 Kg8 Be8 f7 Bh4 f8R Rb7 f6 Na7 Rc6 Rf7 d7 Qd5 d8Q Qd7 Qc1 Kf2 Bhe4 N7b5 Rg1 h1N Qdc8 h2 Rc7 Na7 Bb7 Ke2 Rd1 Nf2 Rd6 h1N Rdc6 Ne4 Qb2+ Ke1 Qe5 Nc3 Qh5 Kf2 Qg5 Rh3 Rb6 Ng3 Rbc6 Re7 f7 Nf5 Kh7 Rg3 Rh8 Nd4+ Kg8 Nd5 f8B Rf7 Be7 Nc3 Bd6 Ke1 Re4 Rh3 Re5 Ke2 Re6 Be1 Re4 Rg3 Rg4 Kf2
2b5/1Nk1p3/6n1/1bBB2qN/3rb1RB/1p3nbK/1Nr1nB2/N2RQ1QQ w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 f4 c5 Kf2 h5 g4 c4 Kg2 b3 b6 c3 f6 c2 g5 Rh6 b7 Bg7 g6 Ra7 d6 Ra5 f5 Nc6 b8B Bh8 f7 Qf8 f6 Qd8 f8N+ Ke8 g7 Bd7 d5 Nb4 Ng6 Nd3 Qe1 Bg4 d7+ Kf7 d6 Ra2 Na3 Nb2 Bg5 c1N Nc4 Ne2 Rd1 Ke6 f7 Qa5 f8Q Nd3 d8N+ Kd7 Nf4 Ne5 Ba7 Rc2 Bc5 Nf3 Nb2 Nf6 g8Q Nd5 Nb7 Be5 Qa8 Rh8 Qg7 Rd8 Rh3 Kc6 d7 Kc7 Rg3 Be6 Rg4 h3+ Kh1 h2 Kg2 h1B+ Kh3 h4 Nh5 Qd2 Bg2 Bg3 Bf6 Qg5 Qa1 Nec3 Ne2 Bf5 Nd4 Ne2 Qh8 Bd3 Qg7 Bb5 Qg8 Nb4 Qg6 Nc6 Qe4 Nce5 Qe3 Qf5 Q3g1 Qg5 Qc1 Ng6 Qb1 Nh2 Bd5 Be4 Qa1 Nf3 Qa8 Rd2 Nc2 Rd4 Qa1 Ra8 Qb1 Ra2 Na1 Bf5 Na4 Rc2 d8B+ Kb8 Bdb6 Bc8 Ba7+ Kc7 Nb2 Rf4 Bf2 Rfc4 Bac5 Rd4 Kg2 h3+ Kf1 h2 Kg2 h1B+ Kh3 Qh6 Bh4 Qg5 Qc1 Nh2 Qb1 Be4 Qh1 Nf3 Qeg1 Be5 Qc1 Bg3 Qe3 Nc3 Qee1 Ne2
3B1N1R/1Rb3qb/B1p2Rq1/r2k4/qq5B/1nB1pnQ1/r3N3/Q2K2NR w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 g4 Kd6 f4 h5 g5 e5 b6 h3 g6 b3 f6 h4 g7 e4 f7 h2 b7 e3 f5 c6 f6 h3 Na3 b2 Nc2 b1Q Ra7 Qb4+ Bd2 Ne7 g8Q Rh5 Ba6 Ng6 Bc3 Qda5 Qa1 Qaa4 Kd1 Nd7 b8R Nc5 Rab7 Ne5 Qg3 Bf5 Rc8 Be7 f8R Nb3 f7 Bd8 Rh8 Bc7 f8N Bh7 Rd8+ Ke7 Rd6 Nf3 Rh6 Kf7 d6 Ra5 d7 Ke7 d8B+ Kf7 Ng6 Ke6 Nf8+ Kd5 Bh4 Ra7 Rf6 Ra8 Ne2 Ra7 Ne1 Ra8 Rf1 h1Q Rg1 Qg2 Rh1 Ke4 d5 h2 d6 Kd5 d7 Ra7 Qh3 Qg7 d8B Ra8 Qg3 Qg6 Rg1 h1Q Rf1 Qg2 Rh1 Nfd4 Nf3 Ra7 Nfg1 Nf3 Qe1 Qg7 Qf2 Q2g6 Qe1 Qab5 Qf2 Ra2 Qg3 Q5a4 Bd3 Ra5 Bc4+ Ke4 Ba6 Kd5
1R5R/2B5/b1p2B2/Qnrn1Q2/3qrB1p/1N4b1/bkB1NqR1/R1Nb1K2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 g4 Kd6 f4 h5 g5 e5 b6 h3 g6 b3 f6 b2 f7 h2 b7 e4 f5 e3 g7 e2 f6 c6 Nc3 b1B Na2 Qc7 Qd2 Rh7 Qa5 Na6 b8R Ne7 g8R Bc2 Rg2 Qd8 Bh6 Ba4 Nc1 Nc7 Kf2 Bg7 f8N Bd1 f7 Be5 Bf4 Ba6 Nd7 Nb5 f8Q Rf7 Nc5 Rf5 N5b3 Rg5 Ke3 e1Q+ Nge2 Qg3+ Kd2 Qe3+ Ke1 Qd7 Qf5 h4 Rhg1 Rh5 Rgg8 h1B Rh8 Rg5 Bg2 Ra7 Be4 Bf3 Bc2 Bh5 Bb1 Bf7 Rg2 Rc7 Bd3 Rc8 Kf1 Re8 Bc2 Rh5 Bg5 Bg3 Bh6 Ng8 Bg5 Nf6 Bh6 Bg8 Bg5 Re4 Bf4+ Ke7 d6+ Kf7 Qh3 Rc5 d5 Qd8 d7 Kg7 d6 Nd5 Qg4+ Kf6 Qf3 Qb6 d8B+ Kf5 Bh6+ Ke5 Bdg5 Qd8 d7 Qf6 d8B Qff4 Bf8 Qd4 Bde7 Qfe3 Bef6+ Ke6 Rg1 Nb6 Nd2 Kd5 Bd6 Bf7 Rg2 Bg8 Nb1 Kc4 Qf5 Bd5 Bgf4 Bg8 Bc7 Be6 Na2 Bg8 Bd3+ Kb3 Nac1+ Kb2 Bc2 Ba2 Nd2 Nd5 Ndb3 Qf2+
nQ6/1b1K1B2/prQrNRNb/3q4/1Nn3R1/1QR1qR2/2p2Qbk/1B2b3 w - - 0 1 illegal: No possible last move
6N1/2Rnq1nR/4nN2/bN2NBr1/2Br1nR1/Q1r1n3/Q2p1p2/B2kBK2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 h3 f5 Ra4 g5 Ra5 Bb7 Ra1 Bf3 gxf5 g4 Be3 g3 Bc1 Bg4 hxg4 Qg5 Bg2 Qf6 Bf1 Qd8 c4 Ke7 b4 Kd6 e4 Ke5 f6 d5 b6 a5 b5 h5 g5 h4 c5 d3 b7 Kd4 c6 d2+ Ke2 a4 c7 h3 c8B h2 g6 a3 e5 g2 b6 f3+ Kf2 a2 g7 Bb4 e6 Ne7 g8N Nf5 f7 Nd7 f8Q Ba5 b8B Rh5 b7 Ng7 e7 Rg5 e8N Qe7 Na3 Kc3 Nef6 d4 Qa4 d3 Bg3 d1R b8R Ne6 Rab1 a1N R1b7 Nc2 Bb2+ Kd2 Ba1 Ne3 Nb5 Rc1 Qb3 Rc3 Qa2+ Kd1 Rc7 d2 Bc4 Ra6 Bh4 Rd6 Ra8 Rd4 Raa7 Bb6 Ra4 Ba5 Bg3 Qd8 Qfa3 Qe7 Nh3+ g1N Nf4 Rf5 Ng6 Rg5 Bf1 Ne2 Ne5 Rd6 Rh4 Rd4 Rh7 N2f4 Rg1 Nfd5 Bh4 Ndf4 Rg4 h1N+ Kg1 Ng3 Bc4 Ngf5 Be1 Nfg7 Kf2 Ned5 Kf1 f2 Bb7 Nb4 Be4 Nbd5 Bf5 Ne3+
BK1n1B2/pQnB4/6Qn/q1N3R1/2Q2rNN/1r1n2N1/Rp5b/1k1Bnr2 w - - 0 1 legal: proof: h4 f5 e4 d5 exf5 c5 a4 g5 c3 gxh4 b3 c4 a5 d4 a6 Qa5 cxd4 c3 d5 Bd7 Bb2 Bb5 Bc1 Bc4 bxc4 Qxa6 Ne2 Qa4 Ng1 Qa2 Ke2 Kd7 Kd3 Kd6 Kd4 h5 f4 b5 g4 b4 g5 c2 g6 e6 c5+ Kc7 Ke5 h3 d4 h2 c6 Kb6 g7 Ka5 f6 Ka4 f5 Kb3 d6 h4 d5 h3 f7 Nf6 g8B Nh5 f6 Rh6 d7 Be7 f8N Na6 d8Q Qa4 c7 Nf4 c8B Rb8 f7 Qa3 d6 Nd5 d7 Bf6+ Kd6 e5 Qb6 e4 d8N e3 Nfe6 e2 f8Q e1N Be2 Rg6 Nc3 Qb2 Qh6 Nc5 Qb7 Qa2 Nc6 Qa5 Ne5 Nc7 Ne4 Rg4 Ng3 Rf4 Ng4 Be5+ Kc6 Kc3 Ra2 b3 Bd7 b2 Qg6 Bd6 Be3 c1N Qd5 Nc1d3 Nf3 Kc2 Qc4+ Kb1 Rg1 h1R Nh4 h2 Bd1 Be5 Rg2 Rhf1 Bd2 h1N Bb4 Nf2 Ba3 Nce4 Bf8 Ng5 Nc5 Bd6 Bd5 Nf7 Qba6 Rb5 Qb7 Rb3 Ne3 Ne4 Nh1 Rf5 Qb6 Nc2 Kb7 Nd8+ Kb8 Nf6 Rg5 Ng8 Ng4 Nh6 Ba8 Bh2 Qb7 R5f4 Ng3 Nce1
B2n3Q/1N1NR2B/nqnb2q1/6Rn/1Q3pb1/KnB4Q/N2p1Qr1/N2k4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d3 c5 d4 cxd4 h3 g5 gxf5 a5 h4 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Ke7 b4 Kd6 c4 Ke5 Kc2 Ke4 Kb3 d5 c5 h5 c6 a4+ Ka3 h4 g6 g3 f6 d3 g7 d2 f7 Ke3 c7 h3 b6 g2 b7 h2 Qe1 d4 Nc3 d3 Bb2 d1Q Na2 d2 Bc3 Qe7 Qf2+ Ke4 Nf3 g1N Bg2 Nc6 b8Q Be6 c8Q Rh3 Nd4+ Nf3 Rg1 h1N Nb3 Nf6 g8B Qc2 Rae1 Qa7 Na1 Bd6 f8Q Rg3 Bh7+ Bf5 e3 Kd3 e4 Nd5 e5 Ng5 e6 Nf7 e7 Nc7 e8N Na6 Qh8 Qb6 Re7 Nfd8 Bf3 Rg7 Rg5 Ng3 Bg2 Nh5 Bd5 Na5 Ba8 Nac6 Qe6 Rg6 Qb3 Bg4 Qb7 Be5 b5 Bd6+ Qb4 Qb1 Qd7 Qg1 Nb3 Kc2 Na1+ Kd1 Qf5 Qd4 b6 Qg2 b7 Qb6 b8N Qg1 Kb2 a3+ Kb3 Rg7 Nd7 Qg3 Qe6 Qd3 Qee3 Qg6 Qh3 Rg8 Nc5 Rg7 Nf6 Rg8 Nb7 Rg7 Nc1 a2 Ka3 Rg8 Nd7 Rg7 Nc2 a1N Na2 Nb3 Na1 Rf7 Qhe3 Rf5 Qeg3 Re5 Qh3 Re2 Qfd4 Rh2 Qf2 Rg2
5Q2/2k2N2/pRqRp1q1/n1bQq2R/2b2QQB/2B1rrN1/3K2b1/bNR5 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 g6 cxd5 Nh6 f5 Ng8 f6 Bd7 Ne2 Bf5 Ng1 Bc8 h4 Nh6 g4 Ng8 h5 Nc6 g5 Ne5 Bh3 Rb8 Bf5 gxf5 Ra4 Ra8 Ra1 Ng6 hxg6 Bg7 Ke2 Bh6 Ke1 Bf8 d4 Kd7 b4 c5 f7 h5 d6 e3 g7 e2 g6 f4 b6 h4 d5 h3 b7 h2 b8Q a6 b5 c4 b6 f3 b7 f2+ Kd2 f1B Bb2 e6 Bc3 Ne7 g8Q Rh3 g7 Nc6 Qb3 Be7 f8Q Qe8 Qb5 Kd8 d7 Bc5 Qbf4 Na5 b8R Re3 Rb6 Bb7 Rd6 Kc7 d8N Qg6 Nf7 Re8 Rb6+ Kc8 d6 Bbg2 Nh3 Rd8 Nhg5 Re8 Ne4 e1Q+ Kc2 Qeg3 Kd2 Be2 Rd1 h1Q Rc1 Q3g5 Ng3 Qe5 d7+ Kc7 Ra2 Bd3 Rb2 Rb8 Rd6 Rb7 Qb3 Rb6 Qd1 Rb3 Qdf3 Ra3 Qd5 Bdf1 Rbb6 Rf3 Bd4 Rae3 Bc3 Bd3 Qh7 Be2 g8R Bef1 Qh3 Be2 Bd4 Bef1 Qhg4 c3+ Kd1 c2+ Kd2 Bb5 Bc3 Bc4 d8B+ Kc8 Bh4+ Kc7 Rf1 c1B+ Kd1 Nb7 Rh8 Na5 Rh5 Bb2 Kd2 Ba1 Rc1 Qh3 Qgg5 Qhf5 Qgg4 Qfe4 Qd3 Qa8 Qd5 Qc6
1b2B2r/R3R1bb/pr1R2r1/2r2p1k/1Qnn2r1/2B2N2/B1QK1BQ1/R6N w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 d4 h5 b4 f5 e4 Kf7 g6+ Kf6 d6 c5 d7 a6 d8R h4 b6 c4 e5+ Kg7 b7 g2 b5 g3 b6 c3 e6 c2 d5 h3 e7 h2 e8B Rh4 d6 Ne7 d7 Ra4 Bb2+ Kh6 g7 c1B g8Q Ra2 Nf3 g1R Nbd2 g2 Bc3 Bg7 Qc2 Nbc6 b8B Ne5 b7 Rb2 Ne4 Bf4 Ng3 Nc4 Ba7 Nc6 b8Q Nd4 Qb4 Bb8 Qd5 Bb7 Rc8 Bc6 d8R Ba4 Rc5 Bb3 Rc7 Ba2 Bc5 Ra7 Re7 Rc7 Ba7 Rc5 Bb6 Na3 Qde4 Bg8 Kd2 Bh7 Bc4 Rbb1 Ba2 Nc4+ Kd3 Rgf1 Rdd7 g1R Ra7 Rg2 Rg1 h1R Qg4 Rhh2 Nh1 Rfc1 Qe4 Rg6 Rd1 Kh5 Qee2 Rh4 Qg2 Rg4 Rd2 Rc8 Rd1 Nc6 Bf2 Nd4 Rde1 Rc5 R1e6 Re1 Rd6 Re6 Qa5 Rb6 Qb4 Rf6 Ng1 Rf8 Nf3 Ne6 Ke2 Nd4+ Ke1 Rh8 Kd1 Ne5 Kd2 Nc4+
5r2/R2B2kn/1RNK1nn1/1N1Qb2r/2N1r1QB/r1pB4/2p3qR/N1n4B w - - 0 1 legal: proof: g4 d5 e4 g5 h4 f5 hxg5 b5 a4 f4 axb5 Bf5 c4 dxc4 exf5 Qd3 f3 Qxf3 Bd3 Qd5 Bf1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 c5 b4 a5 d4 h5 b6 f3 d5 a4 g6+ Kf6 g7 c3 b7 f2 d6 c4 Kd5 e4 g5+ Kf7 b5 h4 g6+ Kf6 d7 c2 b6 a3 Bd3 f1R Rh2 a2 Nd2 c3 Qg4 h3 Ngf3 e3 Ne5 e2 Nec4 e1N Nb3 Qe7 d8Q Na6 b8N Ng2 b7 Re1 Nc6 Nc5 b8R Nh4 Rb6 Re4 Bf4 Ra7 Bg3 Ra3 Be1 Ne6 Bf2 Ng2 Bh4+ Ng5 Qa8 Qb7 Qd8+ Ne7+ Kd6 Nf4 g8B Nd5 Be6 Kg7 Bd7 Nf6 Qa8 Rh5 Qa5 Ngh7 Qd5 Kh6 g7 Ng6+ Ne7 Qa8 g8B Bg7 Nc6 Bh8 Qe5 Kg7 Bd5 Re3 Bh1 Re4 Qd5 Qb7 Rb1 a1N Rb2 Qa8 Ra2 Qg8 Nbd4 Nb3 Nb5 Nc1 Ra1 Ra8 Ra7 Rf8 N6a5 Qf7 Nb3 Qe8 Na1 Qe5+ Kc5 Qg3 Kc6 Qf2 Kd6 Qg2 Bg3 Rb8 Qf4 Kf8 Nd2 Ng4 f6 Ne2 f7 Rb4 Qff5 Rb3 Nc4 Nc1 Bh4 Bd4 Qff3 Ngf6 Qg4 Kg7 f8N Ra3 Ne6+ Kg8 Nd8+ Kg7 Nc6 Rf8 Bg3 Re5 Be1 Re4 Bf2 Qf3 Rg2 h2 Bg3 Qe2 Rf2 Qf3 Bg2 h1R Rd2 Rh6 Bh4 Rh5 Bh1 Qh3 Rh2 Qg3+ Qf4 Qg2 Qg4 Be5+
r1n1kq2/1R6/1rpQ4/2r1b3/N2q1QKQ/1p3qRR/B2Q2N1/qRB2Nq1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Bh3 g5 Bg2 f5 Bf1 f4 h3 Bf5 gxf5 Nc6 h4 g4 Qc2 Ne5 Qb3 Nf7 Qd1 Ng5 hxg5 Bg7 Nc3 Bh6 Nb1 Bf8 Kf2 h5 a4 b5 d4 h4 e4 h3 a5 b3 a6 h2 e5 b4 a7 b2 f6 c6 e6 Qc7 d6 Qh7 d5 Qc7 d7+ Kd8 f7 Rh3 g6 Nh6 g7 Qb7 g8R Rh5 e7+ Kc7 e8R Qb8 Re7 Kd8 Ne2 Qb5 Nd2 Qd3 Rb1 Nf5 Rg6 Bg7 f8Q+ Kc7 Bg2 Be5 Nf1 Nd6 Qd2 Nc8 Qf7 Kd8 Bh3 Rb8 a8N Qc4 Nb6 Ra8 Na4 Qd4+ Ne3 Rf5 Ng3 Rg5 Nf1 g3+ Ke1 g2 Kf2 Rh5 Rg3 Rg5 Be6 g1Q+ Ke1 f2+ Ke2 Rf5 Kf3 Rh5 Kg4 f3+ Qf4 Rf5 Ra1 b1R Ng2 Rb2 Rb1 Rb3 Nfe3 f1Q Rh7 Qe1 Nf1 f2 Bf7 Ke7 d6+ Kf8 Bc4 Qee3 Rg7 Qa1 Rh7 Qed4 Rhh3 Rb2 Ba2 Rb3 d8Q+ Kf7 Nfe3 f1Q Qh4 Ke8 Rb2 Qff2 Nf1 Rh5 Qe4 Qf8 Qef4 Rc3 Rb1 Rc5 Rb2 Rf5 Rb1 b3 d7+ Kf7 d8Q Rb5 Rc3 Rb6 Qd6 Ke8 Rhg3 Bh8 Rc4 Rc5 Rb4 Be5 Rb5 Rba6 Rb7 Rb6 Rf3 Qgf2 Rg1 h1Q Rg3 Qh2 Rh1 Qhg1 Rhh3 Qf3+
Q7/RpBQ2N1/1NB1q1qR/3Qn2r/1NB2qp1/1nBn1N2/5K2/2n2bnk w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 h3 f5 Qc2 g5 Qb3 f4 Qd1 Bh6 h4 Ra6 Kf2 Rf6 Ke1 Rf5 gxf5 g4 Qb3 Na6 Qd1 Bg5 hxg5 Nb8 e4 Kd7 a4 Kd6 d4 h5 f6 c5 g6 h4 f7 c4 f8N h3 g7 b3 a5 c3 a6 b2 a7 f2+ Ke2 c2 a8Q h2 Bd2 f3+ Ke3 c1N Bc3 Qb6 Bc4 f1N+ Kf2 Na6 Ne6 Ne7 g8Q Nd2 Ng7 Nc6 Na3 b1Q Qa4 Rh5 e5+ Ke7 e6 Kf6 d6 Kg5 d7 Kh4 d8N Ndb3 e7 Nac5 e8B Bd7 d5 Ne5 d6 Bb5 d7 Q1g6 Ra2 Qbe6 Nc6 Ba6 Nb4 Nc5d3+ Kf1 Kg3 d8B f2 Bc6 Bb5 Nf3 Ba6 Bc7 Kh3 Rg1 h1Q Qgd8 Qh2 Qd5 Qf4 Qab5 Qge8 Qd7 Q8g6 Qbd5 Bb5 Nb1 Ba6 Nbd2 Bb5 Ra7 Ba6 Ng5+ Kh2 Rg2+ Kh1 Ngf3 Na2 Ke2 f1N Rg3 Nh2 Rh3 Rf5 Rh6 Rh5 Ne4 Bb5 Nd6 Ba6 Nc8 Bb5 Nh4+ Nhf3 Nb6 Nac1+ Kf1 Qd4 Q7d6 Qde4 Qd7 Ng1 Nf3 Qf4 Qc5 Ne1 Kf2 Ba6 B4d5 Be2 Bc4 Bf1 Qcd5 Ne1d3+
2bk4/R2q3N/3Q4/2B1Bpq1/B1qqN3/Q1N1Rq2/rBnqpR2/b1K4R w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 d5 axb5 g5 Kd2 gxh4 Ke1 d3 f3 e5 Qd2 a5 Qe2 d4 Qd1 Nc6 f4 Ra7 Nf3 Rd7 Ng1 Rd5 exd5 e4 Na3 Bg4 Nb1 Ne5 fxe5 Bc8 Kd2 h5 g4 f5 b4 a4 c4 a3 d6 a2 c5 h3 d7+ Ke7 c6 h4 c7 h2 g5 h3 g6 Bb7 c8N+ Ke6 g7 Nh6 g8R Qb6 d8Q Qd6 b6 Qd7 b5 Bg7 Nc3 Ng4 Qf3 Ne3 Nd6 Nc2 Bb2 e3+ Kc1 Bc8 b7 e2 b8B Qe7 b6 Qg5+ Qe3 Rh6 b7 Rg6 Qb6 Kd7 Nde4 Rh6 Qc5 Ra6 Nf3 Bh8 Rg6 Kd8 Bd6 Ra5 b8B Ra8 Rg1 h1Q e6 h2 Bg2 Ra6 Re1 Qg1 Be5 h1Q Bbd6 Qgh2 Rf1 Qhf4 Rg7 Qhh4 Rb1 a1Q Ra7 Ra2 Rf2 Qhg4 Qd2 Qe3 Qa3 Bg7 Nh4 Qef3 Ng6 Bf6 Nf8 Bg7 Ng3 Qge4 Qf4 Qd5 Bc5 Qc4 Nge4 Bf6 Kd2 Bh8 Rh1 Qb1 Ba1 Qbb5 Kc1 Qd7 Nh7 d2+ Kb1 d3 e7+ Ke8 Bb2 d1Q+ Qc1 Qdd2 Qd1 Qde3 Qd2 Qed4 Qf4 d2 Qh2 Kf7 e8R Bf6 Qh6 Bg7 Qd6 d1Q+ Bc1 Q1d2 Bb2 Q2d3 Re6 Qge7 Kc1 Ke8 Rg6 Kd8 Rg3 Qh5 Rgh3 Qeg5+ Re3 Bf6 Bf3 Qh3 Bh5 Qf3 Be8 Be7 Bf4 Qdg7 Nb5 Bf6 Ba1 Bc3 Bh2 Qgd4 Bg3 Qdd5 Be5 Q5d4 Bf7 Qa4 Bb3 Qac4 Ba4 Ba5 Bc3 Bb4 Bd2 Bc3 Be1 Ba1 Bc3 Qfg3 Bb2 Qf3 Nbc3 Qd2+
6B1/1BK2Rr1/rQ4pk/n3p3/1Q2nRQq/R4rNR/nq3qq1/B3N1Q1 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Ng8 h4 g6 h5 Na6 h6 Bg7 hxg7 Bb7 f6 Bd5 Qe2 Be6 Qd1 Bf5 gxf5 Nb8 Ke2 Kf7 c4 a5 b4 d5 c5 h5 b6 e5 b5 e3 Kd3 a4 b7 e2 c6 e1Q b6 a3 c7 h4 c8Q h3 Bg2 h2 Nf3 a2 Nbd2 Rh6 Ne4 Rh3 Bb2 Nc6 b8Q Qe7 b7 Ra6 Ng3 Qf2 Qg1 Na5 Ne1 Qb4 Qd6 Qa4 b8Q Qc6 Rb1 a1Q Qb6 Rh7 Bc3 Qab2 Ra1 Qa8 Ra3 Rh3 Qf1 Qb7 Qdb4 Qc6 Rg1 h1Q Bf3 Qhg2 Rh1 Qa4 Qd7+ Ne7 Qc8 Nec6 Qg1 Rh7 Rh2 Rh3 Qd7+ Kg8 f7+ Kh7 f8R Kh6 Q4b5 Qab4 f6 Qe7 f7 Qh4 Ne2 Rg3 g8B Rh3 Q5c5 Rg3 Qg4 Rh3 Nc2 Rg3 Rh3 Nb4+ Kd2 Na2 Qcb4 d3 Be4 d4 Bb7 Qb3 Ne1 Rf3 Ba1 Qb1 Rd8 Qb3 f8R Qb1 Rd7 Qb2+ Kd1 d2 Rf4 Rg3 Rdf7 Rf3 Ng3 Qgf1 R7f5 Q1g2 Rb3 Qa3 Kc2 d1R+ Qd2 Qb4 Ra3 Qb5 Rf6 Qbe2 Kb2 d3 R6f5 Rc1 Rf8 Rc7 R8f6 Rh7 Rf7 Nc1 Kc3 Rg7 Qdb2 d2+ Kb4 d1N Q2d4 Qd2+ Kc5 Nc3 Kd6 Ne4+ Kc7 Qb2 Qdb4 Na2
5K1B/Q4bNr/1b1rb1b1/pR1RQr1q/k2N4/2Q4Q/1p2R1Nr/3NbB2 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 cxd5 Nd7 a6 Nb8 b4 b6 Ba3 Nd7 Bb2 Nc5 Bc1 Nb7 axb7 Qe7 Nh3 Qg5 Ng1 Qd8 Nc3 Ne7 Nb1 Nc6 b5 a5 Rh3 Nb8 Rh1 Na6 bxa6 Qd7 Nh3 Qd6 Ng1 Qd8 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b8Q b5 e4 f3 g4 c4 d4 f4 d6 Kc6 g5 c3 a7 c2 g6 b4 d7 h3 Ke6 b3 Kf7 h4 g7 h2 g8Q h3 d5+ Kc5 d6 f2 e5 f3 e6 Qh4 d8N Rh7+ Qg7 Bb7 e7 Kb4 e8N Qh6 d7 Bc5 Qe5 Bc8 Ne6 Bb6 d8R Qh5+ Kf8 b2 Bd2+ Kb3 Nf4 Be6 Rd5 Rd8 a8Q Rd6 Bc3 Bf7 Qde1 c1B Qc8 Bd2 Nge2 Bg6 Qc1 Be1 Qa7 Bf7 Rg1 h1B Ng7 h2 Rg5 Bg2 Qg4 h1R Qh3 Rh2 Ra4 Bh1 Re4 Be6 Re3 Ka4 Nd4 Bf7 Re2 Bg2 Qh4 Bh3 Ng2 Bg4 Qh3 Bge6 Nd2 Bg6 Nc4 Bgf7 Nce3 Bg6 Nd1 Bef7 Rd2 Be6 Bd3 f1R Re2 f2 Qeg3 Bd7 Rb5 Rh6 Nde6 Rg1 Ne8 Bc8 Rd2 f1B Bh8 Bh7 N8g7 Bg6 Qc3 Rh7 Nd4 Be2 Qe3 Rf1+ Qf4 Bf7 Rgd5 Bce6 Qe5 Rf6 Bc4 Bd3 Rc2 Bdg6 Bf1 Rf2 Re2 Rf5
k1B5/4K2r/n1R4B/rR2p1bB/p1nbQBNR/2Q5/1n1pNqr1/1N5N w - - 0 1 illegal: No possible last move
N6n/3pQ3/1K1pnbRN/NB1pbb1r/R2QNQ2/5r1B/4B3/2qB1n1k w - - 0 1 legal: proof: e4 g5 a4 f5 exf5 b5 axb5 g4 d4 c6 d5 cxd5 Bf4 g3 Bd6 exd6 hxg3 Bb7 g4 Ba6 g5 Bc8 Kd2 Ke7 Kc3 h5 Kb4 h4 c4 a6 g4 h3 f4 h2 b6 a5+ Kb5 a4 b4 a3 f6+ Ke6 b7 a2 f5+ Ke5 f7 Ke4 c5 Ke3 c6 Kf2 f6 Ra6 c7 Nc6 b8N Ra8 g6 Kg3 g5 Ra3 g7 Kf2 g6 Rb3 Na6 Ne5 Kb6 Nc6 b5 Nb8 Nh3+ Kg3 Nc3 Rh5 Be2 Kg2 Ne4 Rc3 Nhf2 Rd3 Ng4 Rh4 Rg1+ Kh3 Nh6 Ra3 Qd4 Ne7 g8B h1N g7 Kh2 Bh7 Rhh3 g8B Rae3 Rg6 Bg7 f8Q Rd3 Be6 Ng3 f7 Rh4 Bh3 Rh5 Qe8 Rb3 f8Q Rf3 Qf4 Bf6 Qf7 Qg8 Qe6 Bb7 c8B Nbc6 Nc7 Nd8 Na8 Ba6 Bb7 Qe8 Bc6 Be5 Qef6 Ne6 Q6g5 Qc8 Bd1 Nf5 Qe7 Nh4 Rf6 Rf2 Nc5 Re2 Bd3 Rg5 Ka5 Kh1 b6 Ng6 b7 Rf2 b8N Rh5 B3e2 Nh8 Kb6 Bd3 Bb5 Bf5 Rg6 Nf1 Ne4 Qc1 Nc6 Rf3 Na5 Bf6 Rb1 Be5 Rb4 Bf6 Ra4 a1B Qc4 Bae5 Qb4 Re3 Qd4 Rf3
1R4rR/n1pB3R/R1NK1bQ1/1Q2B3/1r1N2qb/1B1Bpb1p/3N4/1nk1r3 w - - 0 1 illegal: Other
1BnB2Bn/3Q1q2/K3NN2/3RrQN1/6qk/pNR3p1/6p1/n1bB1Rbr w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 d4 Ke7 Kd2 Kf6 Kc3 c5 Kc4 a5 b4 h5 e4 a4 d6 h4 d7 a3 e5+ Kg6 g5 f5 e6 f4 e7 h3 e8N h2 d5 f3 b6 Kh5 Kb5 c4 d6 c3 g6 c2 b7 Rh7 g7 Na6 b8Q Kh4 Nh3 f2 Nd2 Rh8 Be2 f1Q Qc8 Qf4 Nb3 Nh6 g8B Nf7 Rf1 Qe7 d8N h1N d7 Qg4 Bg5+ Kh5 Rc1 Nf2 Qd2 Rh7 Bd1 Nh8 Kb6 Qg7 b5 Bc5+ Ka5 Ba7 b6 Nb4 b7 Qf7 b8B Ne4 Qd5 Nd6 Qf5 Rh6 Ne6 Rh7 Qc6 Nc8 d8R Bg1+ Kb5 Ra4 Rd5 Rh6 Qd7 Rh7 Ra1 Rh6 Ra2 c1B Rc2 Rh7 Rc4 Nc2 Rc3 Re4 Ka6 Re5 Bf6+ Bg5 Bd8 Na1 Qe4 Bc1 Nhg5 Qgf3 Qd3 Kg4 Qg6 Rh1 Qf5+ Kh4 Nf6 Qg4
b1N2N1r/2Q2p2/3R1N1k/3R1rqr/1KpB3B/n6R/pQn1QQRq/1n6 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Bb4 g6 Ke8 Bg2 Be7 Bf3 Bg5 hxg5 exf3 b4 Kf8 e4 Kg7 d4 h5 Kd2 c5 Kc3 a5 e5 c4 d6 h4 d5 h3 d7 h2 d6 a4 e6 f2 b6 f1Q e7 a3 e8Q a2 b7 f3 b5 f2 b6 Nh6 Bb2 Qg2 Nd2 f1R Ne4 Nc6 b8Q Ra5 b7 Na7 Qd4+ Qf6 d8R Rf2 d7 Rd2 Nf3 Rc5 Nd6 Ng8 Nh4 Qc6 Rad1 Ne7 Kb4 Rh5 Qf2 Qc7 Bd4 Ng8 Qee2 Nb5 Qa7 Rh8 b8Q Bb7 Nc8 Rf5 Qc5 Qce5 Qcc7 Ba8 Qbb6 Na3 Qb5 Rh5 Qbb7 Kh8 g7+ Kh7 Ng6 Nh6 g8N Ng4 Nf8+ Kg7 g6 Ne3 Qbb8 Qg5 Nf6 Kh6 g7 Qeg3 g8R Nec2+ Ka4 Qg2 Qb2 Rd3 Rg7 Rdh3 Rd3 R3h4 Rh3 Q2g3 Rd1 h1N Rd3 Qh2 Rd1 Qe3 Rg2 Ng3 Rd2 Qg5 Rd3 Ne3 Kb4 Nec2+ Kc3 Nf1 Bb6 Kg7 Rd5 Rh8 Bd4 Ne1 Kb4 Nd2 Re8 Kh6 Re6 Ndb1 Red6 Qg6 d8B Rhh5 N6d7 Qf6 Be7 Qg6 Bef6 Qg7 Bh4+ Qg6 Nf6 Nec2+ Ka5 Qg5 Ka4 Na1 Kb4 N1c2+
3QBn1k/pBR3Rp/1n3r2/1pQ2R2/1Nr1rKbq/6B1/2B5/3NnRnQ w - - 0 1 illegal: No possible last move, all moves rejected
1R1q2N1/4q1Np/1bqB1r1n/1kpN3B/5Qqp/3b1RB1/R5B1/1rQK2R1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qb3 a4 Qc2 Nc6 Qd1 Na5 bxa5 Qd6 Nh3 Qf6 Ng1 Qd8 d4 Kd7 g4 c5 e4 f5 d6 f3 b6 Kc6 g5 f4 a6 a3 g6 a2 a7 Bg4 d5+ Kb7 g7 Qg5 d7 Qg6 d8B Qc6 e5 Qc7 e6 Rb8 a8Q+ Kc8 e7 Kd7 e8B+ Kd6 b7 Nf6 g8N Qc6 Nc3 Bf5 Qaa4 Bd3 Bh5 Ng4 Nge2 Be7 Nd4 Nh6 Rg1 f2+ Kd2 f3 Bg2 f1Q Bc7+ Kd7 d6 f2 Nf5 Bd8 Bb2 Qe2+ Kc1 f1Q Nd5 Ra8 b8R Ra6 Be5 Qg4 Ng7 Qf8 Bg3 Qe7 Qf4 Rb6 Kd2 Rb3 Qc1 Rb1 Ba5 Bc7 Bc3 Bb6 Be5 Qc7 Ke1 Kc6 d7 Kb5 d8R Qc6 Rf8 Qd8 Bd6 Qe7+ Qe5 Qd8 Rf3 Qe7 Ngf6 Rf8 Ng8 Rf6 Kd1 Rb4 Rb1 a1Q Qef4 Qa5 Ra1 Rb1 Ra2 Qaa8 Rb7 Qae8 Rb8 Q8d8
1NR5/K2nppkN/2BnQ2R/1Np1q1B1/n1Q1r3/Rq6/n4bQ1/4r1NQ w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 Nd7 axb5 Nb8 d4 Nc6 d6 Bg7 e5 Bf6 d5 Nb8 Kd2 Kf8 f4 Bd7 e6 Bd4 f5 Bf2 f6 Nxf6 exd7 Ng8 Kc3 h5 Kb4 a6 Ka5 c5+ b6 h3 b4 h4 g4 h2 g5 h3 g6 Bg3 b5 Rh4 Nc3 Nh6 g7+ Kg8 Bg2 Kh7 g8N Qf8 d8R Qe8 b7 Nd7 b8Q Bf2 b6 Kg7 b7 Nf5 Qc8 Re4 Nf6 Qh8 b8N Ra7 Bd2 Rb7 Bg5 Rb1 Qf1 Rbe1 Nb5 Qh5 Qc4 Qf3 Ka4 a5 Ra3 Qc3 Nh7 Qd4 Nc3 Qe5 Kb5 a4 Ka6 Rf1 Ka7 Rfe1 Ra1 a3 Nb5 a2 Qb7 Nf6 d7 Nd6 Rb1 a1N Rb3 Nc2 Ra3 Nb4 Rc8 Na2 d8Q Nd7 Qdb6 Nf5 Qe6 Nd6 Qb4 Nc4 d6 Ncb6 Qbc4 Na4 Ne2 Rh4 Bc6 Re4 Rf1 h1Q Ng1 h2 Qa8 Be3 Rf6 Qf3 Rh6 h1N Qb7 Bf2 Qa8 Ndb6 d7 Qb3 d8Q Ng3 Qd1 Nf5 Qh5 Nd6 Qh1 Rg4 Be8 Rd4 Qag2 Rde4 Bc6 Nd7
r2B1Rq1/rNp5/1N1RN3/b2Q2R1/3B1n1B/1r2pB1r/Rrkr3p/4KQ2 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 b5 c4 bxc4 a4 g5 f3 Ba6 f6 g4 f4 Nd7 f5 Bb5 axb5 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Qb8 Ke2 Qc8 Ke1 Qd8 d4 Kd7 b4 Kd6 d5 Ke5 d6 h5 f7 a5 b6 c3 f6 c2 b7 g3 b8B a4 d7 a3 b5 h4 b6 e6 b7 e3 g6 Ke4 g7 a2 Nf3 e2 Bg5 c1R Nd4 e5 Nd2+ Kd3 Ne6 h3 Bg2 e4 Ba7 h2 b8N Rc2 Nb3+ Rd2 Bf3 g2 Na5 Rh3 Bd4 Ne7 g8R Nd5 Nb7 Bb4 f8R Nf4 f7 Ba5 Bh4 Qe8 Rf1 g1R d8B Rg2 Nd7 Ra7 Rf2 Rgg3 Rb1 a1R Rb6 Ra2 Rg6 Rb2 Rd6 Ra8 Rg5 Ra7 Rh8 Qg8 f8Q Ra8 Nb6 Ra7 Qa1 Kc2 Qf5 Ra8 Qd5 Ra7 Bg4 Rgb3 Rg2 Qh7 Rf8 Qg8 Kf2 Ra8 Qf1 e1R+ Be2 Rdd3 Bh5 Ra1 Bg4 Raa2 Bf3 Rd2+ Ke1 e3 Rg1 Nh5 Qfb5 Rdd3+ Ke2 Bd2 Ra1 R2a7 Ra2 Ba5 Qa6 Rd2+ Ke1 Nf4 Qac4+ Kb1 Qf1 Kc2
Qr3B2/q1k4B/3r2Q1/p3p3/R1B4K/QNq2n2/NRR3rp/1RQnqr2 w - - 0 1 illegal: No possible last move
2N3R1/2k1b1qN/R2p3q/N1K1n3/B1QppRQ1/2br4/n3Qp1B/3N1Q1n w - - 0 1 illegal: No possible last move
N6K/1NB1p1N1/2Q5/QB1ppRqQ/2R1b2n/5qp1/1rnpkB2/5bQB w - - 0 1 legal: proof: g4 a5 d4 c5 h4 cxd4 a4 b5 axb5 g5 f4 f6 e4 Ra6 e5 fxe5 f5 Bh6 Kd2 Rc6 Ke1 Rc3 f6 Rf3 Bg2 Rf2 Bf1 Rf5 gxf5 g4 Ra4 Na6 Ra1 Bg5 hxg5 Nb8 Kf2 Kf7 Kg3 h5 Kh4 d6 b4 a4 c4 g3 g6+ Ke8 Kg5 Kd7 b6 Kc6 b5+ Kc5 f7 a3 f8Q d3 b7 Kd4 b6 h4 g7 h3 Kg6 h2 c5 a2 f6 Qd7 c6 Rh7 c7 Rh3 f7 Rh8 Nf3+ Kc4 Nbd2+ Kc3 Nc4 Rh4 Qe8 Rh5 f8N Rh3 Ng5 Nc6 b8Q Nd4 b7 Nf3 Nge6 Qb5 Nd7 Rh4 Na5 Rd4 Kh7 Ng1 Qa8 Qa4 b8B Qa3 Nb6 Rh4+ Qeh5 Ne2 Kh8 Nh6 g8B Rb4 Be3 Ba6 Ng7 Nd4 Nb7 Nc2 Bd5 Rb2 Rc1 a1Q Bf2 Nf5 c8Q+ Bc4 Qc6 Nh4 Bdg2 d5 Bc7 d2 Qa6 Qb1 Na8 Qb3 Rg1 h1B Be4 Bg2 Be2 Bf1 Bh1 Bg2 Rf1 Be4 Be1 Kd4 Rf5 Qf3 Qa5 Ba6 Bb5 Ke3 Ba4 Bf1 Bb5 Nb4 Rc4 Nc2 Qc1 Ke2 Bf2 Bh3 Qg1 Bf1 Bd4 Qe1 Ba7 Qf2 Bab6 Qe3 Ba7 Qf4 Bf2 Qg5
6q1/4qB1R/1QR1n1Qq/n4q1B/1rn2QK1/2BR1RQ1/3qbb2/1NNkb2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 d4 h5 b4 a5 g4 f5 e4 c5 b6 c4 g5 c3 b7 h3 b5 c2 b6 a4 g6 h2 g7 h4 Ra3 h3 Rc3 a3 Qd3 a2 Qd1 a1B Qd2 Nf6 g8Q Nc6 b8R Qe7 b7 Nh5 Be2 Ng7 Qe1 Na5 Qf1 Ne6 Re3 Bc3 Qf2 Be1 Bd2 c1Q Bc3 Qd2 Ba6 Bd7 Rd3 Bb5 Rc8 Rb8 Ne2 Rh5 Rf1 h1Q+ Qfg2 h2 Nc1 Rh6 Qg6 Qg1 Q2g3 Bg7 Rh8 Bc4 Rh7 h1Q+ Qg2 Qhh4 Q2g3 Qhf6 Bb5 Rh1 Be8 Qg5 Bf7 Qh6 Rf2 Bf6 Rf1 Bh4 e5+ Kd7 d6 Kc6 d5+ Kc5 Q3g4 Bhf2 d7 Kb5 d8R Ka4 d6 Bb5 Na2 Kb3 d7 Kc2 Rc8 Kd1 d8Q Ba6 Rc6 Bc4 Qf6 Bb5 Qh5 Qg8 Qb6 Ba6 Qh2 Bc4 Bh5 Bb5 Qg6 Ba6 Kg2+ f3+ Kh3 f4 Nc1 Bc4 Kg4 Bb5 Rd8 Be2 Rd7 Bg1 Rd3 f2+ Kf5 f3 Qhg3 Bh2 Qf4 Bg3 Kg4 Bh4 Rg1 f1N Rg3 f2+ Rgf3 Rd8 b8Q Rd4 Qd6 Rb4 Qdb8 Ng3 Qd6 f1Q Qdc7 Ne4 Qcb8 Ng7 e6 Nd6 Q8c7 Ndc4 Qcd6 Qb7 e7 Bhf2 e8B Ne6 Bf7 Qe7 Qg3 Bg1 Qdf4 Qf2 Rc8 Qfc5 Rc7 Bgf2 Rc6 Qf5+
4Q2r/2bQn2q/3B4/2R1Nq1N/b1nB2Qb/2R4B/rb1q1rK1/QR1Bk1b1 w - - 0 1 illegal: No possible last move, all moves rejected
QR1nBn1n/3Bq1B1/1QN4R/2N3bb/5nQB/qr2Q1R1/3rn1bq/K4k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 Kb2 a5 e4 a4 b6 c4 g5 c3+ Ka2 f3 b5 a3 g6 f2 g7 c2 b7 f4 b6 h3 Be3 h4 Qg4 h2 Qe2 f3 Bg5 h3 Qd2 Nd7 b8R Be7 b7 Nf8 Qd3 Bg4 Bd2 Bg5 Bg2 f1B Qc4 f2 Bc3 Nh6 g8Q Qe7 Qc8 Bh5 Qg4 Nf7 Nd2 c1N+ Kb1 Rh6 Nb3 Nd3 Nc5 Nh8 Nf3 Nf4 Ne5 a2+ Kb2 Rh7 Nc6 Ra3 Re1 a1N Re3 Rh6 Rg3 Rb3+ Ka2 Nc2 e5+ Kc7 d6+ Kb6 d5 Kb5 e6 Kc4 d7 Nd4 Bf3 Bg2 d8B f1Q d6 Qe1 d7 Rg6 Bb2 Qb4 Ka1 Rf6 Bc3 Rf5 Qg7 Rd5 Qe5 Rd6 Qe3 Rd5 Na7 Nc6 Bg7 Rd2 Bd1 Ne5 Nc6 Nef7 Re1 h1Q Bc2 h2 Bf5 Qd6 e7 Qg1 e8B h1N Be7 Qh2 d8Q Qe6 Qa5 Nd8 Qa8 Qd6 Rg1 Qd7 Rh3 Ng3 Rh1 Ne2 Rg3 Qd6 Bef6 Qe7 Bfd7 Bh6 Bh4 Bg5 Rd1 Rc2 Rd6 Rcb2 Rf6 Rd2 Nd3 Kc3 Rh6+ Kc2 Nc5 Kd1 Rc8 Ke1 b8Q Kf1 Qb6 Bd5 Rb8 Bh1 Qaa7 Bg2 Qa8 Qa3+
1B1QbB2/3NqbQ1/r1qQ1nq1/2R2N1N/2B1r1R1/5QnK/1r3b2/k1r1N2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kd6 d4 c5 b4 f5 g4 a5 Kg2 h5 g5 a4 g6 a3 g7 h3+ Kh2 c4 b6 a2 b5 f3 b7 f2 b6 h4 Bb2 c3 Qc1 f4 Nd2 f3 Qb1 c2 Nb3 c1R Bc4 f1B Qd3 f2 Nf3 Ra4 Ne1 Bd7 Rg1 Nh6 g8Q Nf5 Qf3 Qe7 Qg7 Be8 Rg4 Nd7 b8N Ng3 b7 Nf6 Nd7 Rh5 Rb1 a1R Ba3+ Rb4 Rb2 Re5 Rc2 Bg2 Rc3 f1Q Rc2 Qd3 Rc3 Kc7 d6+ Kc6 b8B Rb7 Bc5 Ra6 Ba3 Rb4 Rc2 Reb5 e5+ Qe4 e6 Bf1 Qc3 Qg6 Qd3 Re5 Qf3+ Re4 Rc3 Rbb6 Rc2 Bd3 Rc3 Bb1 Bb4 Ba2 d5+ Kb7 Ba3 Rb5 Nd4 Rb2+ Rc2 Bb3 Nf5 Ba2 Ne5 Kb6 d7 Ka5 d8Q+ Ka4 d6 Bb3 d7 Ba2 Kg1 h2+ Kg2 h1R Qc7 Bb3 d8Q Ba2 Qcd6 h3+ Kf2 h2 Kg2 Bb3 Nd7 Ba2 Kh3 Bb3 Qg8 Bh6 Qg7 Be3 Bc5 Bf2 Rc3 Qef7 e7 Qf8 Bd3 Bbf7 Rc2 Kb3 Be2+ Ka2 Bc4+ Ka1 Rc3 Bd5 Ba3 Bef7 e8N Qe7 Bb4 Bc6 Rc2 Nh7 Nef6 Ba4 Nh5 Nf6 Be2 Bc6 Rc5 Bb5 Bc4 Ba4 Ne5 Bae8 Nd7 Rf1 Qff4 Qe6 Qdd2 Rd4 Rb5 Qe5 Bf8 Qe7 Rc5 Rg1 Qf3 Rf4 Qg2 h1Q+ Qh2 Qd5 Qg2 Re4 Qf3 Qc6 Qd6 Rh1+
q2N1r2/bQ6/1BR1b1nQ/1KQ3Rr/b2bR1R1/qnB1B2N/5bB1/qn1k4 w - - 0 1 illegal: No possible last move
1RBN2r1/1nqB1NN1/5Rrb/2bQ1Qq1/qn1N4/B1Qr1K2/b2b4/2b2k1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 c4 Ke6 e4 f5 h4 a5 b4 d5 c5 g5 b6 g3+ Ke2 f4 h5 f3+ Ke1 a4 b5 g2 Kf2 g4 h6 g3+ Ke1 d3 c6 d4 h7 f2+ Kd2 a3 b7 a2 c7 Nh6 b6 Nc6 b8Q Nb4 b7 Rg8 h8Q Nf5 Nc3 Nd6 Rh6+ Rg6 Rb1 a1B Nh3 g1B Ne2 g2 Ba3 Bb2 Qa7 Qe7 b8N Nb7 Qa5 Bd7 Qc2 Bc1+ Kd1 d2 c8B Qd6 Nc6 Qc7 Qh7 Bc5 Qc3 Bh2 Rb2 g1B Bg2 Bf4 Bh1 Bg5 Rh5 Be3 Rf5 Bh2 Qh5 Bhf4 Qg4 Bh6 Nd8+ Ke7 e6 Kd6 e7 Be6 e8B Ba2 Rf7 Ke5 Bed7 Rb8 Ng5 Ra8 Qh4 f1Q+ Qe1 Rb8 Rf6 Qf4 Qf1 Qg3 Nf4 Ra8 Ke2 d1R Nfe6 Rd3 Qh3 Qh4 Kf3 Rb8 Nh7 Qg5 Qf5+ Kd6 e5+ Kd5 Nhf8 Ra8 Nf7 Rb8 Ned8 Ra8 Qe1 Kc4 e6 Rb8 Qg3 Kc3 Rb1 Kd2 e7 Ra8 Qg2+ Ke1 e8N Rb8 Qg3+ Kf1 Ng7 Rd2 Qh4 d3 Bb2 Nd5 Qhe4 Nc3 Ba3 Nd5 Nde6 Nd6 Bb7 Rd1 Qc3 d2 Rb6 Nb4 Nd4 Rd8 Bbc8 Re8 Rb8 Nb7 Nfe6 Rg8 Qfg4 Re1 Ned8 d1Q+ Ne2 Qa4 Qgf5 Rd1 Nd4 Rd3 Qed5 Bed2+
1B2n2k/2Q1N1b1/3bn1B1/KNBrrN1b/R4n2/q2rQ1RQ/B7/1q1b1b1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 Kg7 g4 h5 b6 a4 g5 f3 g6 a3 e5 f4 e6 f2 b5 h3 e7 a2 e8B h2 d6 h4 d7 h3 d5 f3 d6 c4 Kb4 c3 b7 c2 b6 Rh6 Ne2 Kh8 Na3 Ra5 Qd2 Qe7 d8Q Nf6 Rg1 h1B Qe3 h2 Rg3 Re5 Qc7 Nbd7 b8N Nc5 b7 Ne6 Nc6 Rhh5 b8B Rh3 Bb2 c1N Nb5 Nd3+ Ka5 Ndf4 d7 Ba6 Bf7 Ne8 d8Q Bg2 Ba3 h1R Bc5 Bc8 Re1 a1B Qdd7 Rd5 Bg8 Bag7 Ra1 Rhh5 Ra2 R1h3 Ra4 Rhe5 Ncd4 Bh1 Bg2 f1Q Nf5 f2 Be4 Bf3 Bf7 Qa1 Bb1 f1B Ba2 Bb7 Qdc8 Bh5 Q8d7 Qb1 Qdc8 Bf6 g7+ Kh7 g8N Kh8 Q8d7 B6g7 Bg6 Qd6 Nge7 Bc8 Bd4 Qa3 Bc5 Ba6 Nec3 Bfe2 Ne4 Beg4 Nf2 Bd1 Nc6 Bd6 Nce7 Rh2 Nh1 Rhd2 Qdc6 R5d3 Qg2 Rdd5 Qh3 R2d4 Na7 Bf1 Nb5 Rd3
N2q1b1n/4B3/RQn4R/rK1Q3b/2NqBkn1/2B3b1/bRq4R/NrN1b3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 f5 g4 c6 e4 h3 b6 c5+ Kb5 a5 b4 a4 g5 h2 b7 a3 g6 a2 g7 f3 Bb2 h4 Ne2 h3 Bg2 f2 Nc1 f1N Na3 c4 Nc2 f4 Bc3 Ne7 g8R f3 Rg6+ Be6 Rh6 Nbc6 b8N f2 Nd7 Ng6 Nb6 Ne3 Bf3 Ra4 Na8 f1Q Qd3 Ng4 e5+ Ke7 Qd2 Qd3 d6+ Kd7 d5 Qd4 Qd3 Rg8 Qd2 Nh8 Be4 Bf7 Qe3 Bh5 Qg1 Rg5 Qf2 Rf5 Qg1 Rf1 e6+ Kc8 e7 Kd7 e8N Ra6 Rb1 a1B Rb2 Re1 Ra2 Bb2 Na1 Ba3 Ne2 Rb1 Nc1 Ra7 Qd1 Bb2 Ra6 Ba3 Re1 h1B Re2 h2 Qd2 Bf3 Rf2 h1Q Rh2 Qd1 Qd3 Kc8 d7+ Kb8 d6 Qc2 Nf6 Be2 Nd5 Bd1 Ne3 Kb7 Bd2 c3 Qc4 Bf7 Qd5 Be2+ Nc4 Bb2 Ncb3 Bc1 Be1 Bf4 Nc1 Bg3 Bd2 Qb3 Be1 c2 Bc3 Qb2 Ka4 Bf3 b5 Bh5 b6 Bd1 Ncb3 c1B Kb5 Kb8 b7 Qc2 Ne5 Bd2 Nc4 Qe7 d8B Bde1 d7 Qh4 Bda5 Qd8 Bab4 Bf3 Be7 Be2 Nb6 Kc7 b8R Bd3 Bf3 Bf5 Be4 Be6 Nd2 Nf7 Ra2 Ra6 Ra8 Na5 Qf5 Qe8 Rb2 Nh8 Nc1 Ba2 Ndc4 Qb8 Qc5+ Nc6 d8Q+ Kb7 Qdd5 Kc7 Qf5 Qbd8 Qg5 Ra4 Ra6 Ra3 Na8+ Kd7 Bg6 Ke6 Qb6 Ra4 Bd6 Ra3 Qd5+ Kf6 Bf5+ Kg5 Be7+ Kf4 Be4 Ra5+
3r1r2/3Q1nbQ/3KQ1nB/2NQ2rB/N4kq1/1qnnR1R1/RBb3q1/bR6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 c5 b4 c4 g5 a4 b6 a3 g6 a2 b7 h3 g7 f6 b5 c3 b6 h4 Qe1 f3 Nd2 f2 Nb3 c2 Nc5 h2 Bb2 Nc6 b8R c1N b7 Nh6 g8Q h3 Qh7 Nf7 e3 Ra7 Be2 f1R Bh5 Bg7 Ne2 Ne7 Nc3 Qd7 N3a4 Rd8 Rg1 h1N Rg3 h2 Rb1 a1B Ra8 Na2 b8B+ Rc7 Ra5 Rg1 Kf4 f5 e4 Nc3 Ba7 Rb7 e5+ Kc7 e6 Kd6 Qe2 Nf2 Qc4 h1Q Ra6+ Nc6 e7 Qg2 e8R Rb8 Ree3 Qe6 Bb6 Nce5 Ra8 Rf8 Bd8 Ba6 Bg5 Rbd8 Bh6 Qh3 Qe2 Bd3 Qe1 Bc2 Ra6+ Ke7 d6+ Kf6 d7 Qg2 Ra8 Qb3 d5 Qh3 d6 Ng6+ Kf3 f4 Ra5 Rb8 d8Q+ Kf5 d7 Nd3 Qc7 Rg2 d8Q Qh4 Qdd6 Rbd8 Qh1 Qf6 Qcd7+ Qfe6 Rh3 Rg5 Rg3 Nd5 Qe1 Nc3 Qd5+ Be5 Re4 Rde8 Nb6 Ra8 Ra2 Rad8 Qd4 Bh8 Nba4 Bg7 Q4d5+ Nde5+ Kf2 f3 Ke3 f2 Kd4 f1Q Qe2 Qh1 Qa6 Qg2 Ree3 Kf4 Qad6 Qg4 Q6e6 Rde8 Na6 Qg1 Kc5 Nd3+ Kc6 Rb8 N6c5 Rbd8 Kc7 Qg2 Kc6 Nfe5+ Kd6 Nf7+
1Q2N3/2qnbR2/1B1b2q1/QK1Q4/n1Rq2B1/2B1NN1r/krN3rn/rb4B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 a5+ Kc4 f5 b4 c5 e4 f3 g4 h3 g5 h4 g6 h2 g7 f4 b6 h3 b7 a4 b5 a3 b6 a2 Qd2 f2 Nf3 Nf6 g8N Be7 Rg1 h1R Ba3 h2 Bb4 Bf5 Rg4 Qc7 Na3 Na6 b8B Rg1 b7 h1R Nc2 Rg2 Ba7 R8h3 b8Q Nd7 Bc3 R1h2 Kb5 c4 Nf6 Nac5 Be2 Na4 Rf1 a1Q Rh4 Bh7 Ng4 Qd1 Nge3 Bg6 Rg1 f1Q Rh7 Qf2 Rf7 Qg3 Qe1 Qd2 Qa1 Bf5 Rc1 Qg6 Qa2 Nb2 Qa5 Na4 Nh4 Qd3 Bg4 f3 Bb6 f2 Nf3 f1N Ba7 Re2 Bb6 Rhg2 Ba7 Nf6 Bb6 Nh2 e5+ Kd7 d6 Ke6 d7 Ref2 d8B Nd7 Nf1 Kd5 e6 Bd6 e7 Qe4 Be1 c3 e8N Ra7 Bg5 Re2 Be3 Qf4 Na1 Bb1 Bg1 c2 Bc3 Rd2 Rd1 c1B Nc2 Bca3 Rc1 Ke4 d5 Kd3 Nfe3 Qd4 Bb2 Be7 d6 Bb4 Bc3 Ra8 Na3 Rb2 Nac2 Qdg7 Na1 Qd4 Qa6 Nf6 d7 Nc5 d8Q Ra7 Qd5 Nfd7 Be1 Ra8 Bef2 Ra7 Rc4 Ba3+ Rb4 Kc3 Nac2 Ra8 Ka5 Ra7 Rc4+ Kb3 Be1 Ra8 Kb5 Ra7 Qba8 Bb4 Q6c8 Ra1 Bc3 Na4 Qcb8 Ka2 Qa5 Bbd6+
bBqb2B1/3k4/1r1Nn1RN/1r2RbN1/2n5/2QBqb2/K2nNQR1/1B2q1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 c5 e4 f5 d4 h5 Kd2 a5 Kc2 f3 Kb3 h3 g4 a4+ Ka2 f2 e5 c4 e6 a3 b6 h2 b5 f4 b7 f3 d6 h4 e7 h3 b6 c3 d7+ Kf7 e8B+ Ke7 d5 c2 g5 Nf6 d6+ Ke6 g6 Bg7 Qe1+ Ne4 Nc3 Ra4 Bd3 f1R Nge2 f2 Rg1 h1B Rg2 h2 Nb5 Nc6 b8Q Rg1 b7 f1N Bf4 c1Q Qa7 Ne3 b8R Nd4 Rb6 Nc4 Qc3 Bf6 g7 Ra5 Bg6 Qe3 Re1 Ned2 Bg3 Qc7 d8N+ Kd7 g8B Ne6 Nf7 Rh6 Ng5 Bd8 Bb1 Qb7 Bgd3 Rg6 Rf1 Rf6 Rf5 Rh6 Re5 Rf6 Rf2 Bf3 Rg2 h1B Rc6 Ra6 Qad4 Rb6 Qh4 Rf7 Bf4 Rf5 Qf2 Ke8 d7+ Ke7 Ka1 a2 Nd6 Qb8 Re4 Rfb5 Re5 Bc7 d8N Kd7 N8f7 Bd8 Rcc5 Ba8 Rc6 Qb7 Nh6 Qc7 Rg4 Be4 Rg2 Bcb7 Qg3 Qc8 Qf2 Bf5 Ne8 Ng7 Rg6 Bf3 Nd6 Qe4 Be3 Ne6 Bd4 Qe3 Bc5 Rc6 Ba7 Rcb6 Bb8 Nf1 Bbc2 Na5 Bb3 Nd2+ Kb2 Ke7 Ka3 a1Q+ Ba2 Qe1 Bab1 Nac4+ Ka2 Kd7
3Rr1N1/3n1rnr/RK1N3b/B5B1/kB2QnN1/3B2bb/2q2qq1/1QRNn3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 f3 Ke3 c4 e5 a4 b6 Kc6 d7 Kb5 e6 f4+ Ke4 f2 Kd5 a3 b7 f3 e7 h3 e8Q h2 g5 a2 g6 h4 g7 h3 Qe4 Nf6+ Ke6 Rh7 g8N Na6 b8N Nh5 Kd5 Bh6 Bg5 Qc7 d8B Ng7 Nd7 Nc5 Bd3 f1R Nb6 f2 Nf3 Bg4 Rg1 h1N Nc8 h2 Ne5 Bh3 Ng4 Ng3 Bde7 h1Q Nd6+ Ka6 b5+ Ka5 b6 c3 b7 c2 b8B c1B Bf8 Ne2 Nc3 Bf4 Qb1 Qg2 Nd1 Ka4 Ba7 Bh2 Bb6 Bg3 Ba5 Nf4+ Kc4 Re8 d5 Re1 Bfe7 f1Q Bf8 Qff2 Rf1 Ka3 Kb5 Qc8 Rh1 Rf1 Kb6 Qf5 Nc8 Qc2 d6 Qcf2 d7 Qg6+ Qe6 Ka4 d8R Q6e4 Nd6 Qee2 Qb2 Qc2 Rc1 a1N Qb1 Qc3 Bfe7 Nc2 Qe4+ Qc4 Bef6 Ne1 Bfc3 Qfg1 Bcb4 Qcc2 Rh2 Rf3 Rh1 Q1f2 Rf1 Nfh5 Rh1 Rf7 Rf1 Qe3 Rf6 Nf4 Re6 Qd4 Re7 Qe3 Ra7 Qef2 Ra6 Nd7+
1b4k1/4b1Br/R4qnb/5NNN/R1nbb3/1n1Q1n1R/B2Rr3/NQnB1K2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 e4 f5 h4 Kf7 b4 g5 d6 c5 d7 a4 d5 f3 e5 c4 d6 g3 b6 a3 b5 g2 e6+ Kg7 h5 c3 e7 a2 e8B c2 h6+ Kh7 b7 f4 b6 g4 Bf7 g3 Be2 Qf6 d8N Bf5 d7 Be4 Na3 Na6 b8N Nc5 b7 Be7 Nbc6 Nb3 Nh3 g1B b8Q g2 Ne6 Bh2 d8R g1B Rd2 Be3 Bb2 c1N Ng7 f2+ Kf1 Bd4 Qb7 Re8 Nh5 Be3 Nc2 Bg3 Rb1 a1B N6d4 Bh2 Nf5 Bg3 Be5 Bad4 Na1 Bh2 Bf3 Bg3 Kg2 f1N Qe2 Nh2 Qd3 Bb4 Rbb2 Ne7 Ra2 Ng6 Ra6 Re6 Rhd1 Be7 Rda2 Bd2 R2a4 B2e3 Qbb5 Bd2 Qb1 B2e3 Q5d3 Bd2 Be8 Kg8 Ng5 Rh7 Bb5 B2e3 Bc4 Bd2 Rf1 B2e3 Rf2 Bd2 Kg1 B2e3 Bd1 f3 Bd6 Bd2 Bb4 Bb8 Bc3 Ng4 Bb2 N4e5 Kf1 B2e3 Re2 f2 Rd2 Nf3 Bc3 Na5 Ba2 Nc4 Kg2 f1N Bb2 Ng3 Bc3 Nge2 Kf1 Nb3 Bb2 Nec1 Bc3 Rf7 h7+ Kf8 Nh3 Rg7 h8R+ Kf7 Rh6 Kg8 Ng5 Rf7 Nhg7 Bef4 Rh3 Re5 Nh5 Rh7 Ne6 Bh6 Ng5 Bd8 Bb4 Re6 Bf8 Be7 Bg7 Ba8 Qdc2 Re2 Qd3 Be4
1NnK2nR/BnRnNb2/8/n1B3qq/QRQ1nk1b/1r3B1r/4Q3/4b1RQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 f5+ Kd4 h5 e4 f3 g4 h3 b6 f2 g5 f4 b7 h2 b5 h4 g6 a4 g7 f3 b6 h3 Bg2 f1N Nc3 f2 Nge2 a3 Rg1 a2 Ba3+ c5+ Kc4 Ke5 Kb5 h1N Nd4 h2 Rc1 a1B Nc6+ Kf4 e5 c4 e6 Nhg3 e7 h1Q e8Q Nf6 g8Q Ne3 d4 f1N Qh7 Bg4 d6 Bg7 d5 Be6 d7 Ng8 d6 Nd5 Qe2 Bf6 Bf3 Nd2 Kc5 Qe7 d8Q Bf7 Qc8 Nf5 Kb5 Ne4 d7 Be6 Bb4 Ra3 Qhh5 Rb3 d8R Ngh6 Qed7 Bf7 Qh3 Rh7 Rh8 Ng8 Qhg2 Qh3 Qh1 Nfd6+ Ka5 Qd8 Qcc7 Rh4 Qe8 Nde7 Nd5+ Kf5 Rc3 Nec8 Rc2 c3 Ba3 Na6 b8B Nac5 b7 Qg4 Rcc1 Rh3 Ba7 Bh4 b8R Qdg5 Nde7+ Kf4 Rb6 Q5h5 Nb8 Qgg5 Qa4 Nd7+ Rb5 Bb2 Rc2 Bc1 Qc5 Bd2 Ka6 Nf5 Kb7 Nfd6+ Kc7 Bde1 Rc1 c2 Bb4 Ra3 Kd8 Rd3 Rb7 Re3 Rb1 c1N Qcc4 Nb3 Rc7 Na5 Bbc5 Ra3 Rb6 Rb3 Rb4 Ndb7+
bQqnBr1b/r1N1n2k/1K4R1/1R1Q1N1B/1Q2n3/r6b/1n5n/1RB1r1RQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 Kf7 e4 Kg7 b6 c5 e5 c4 g5 h3 b5 h2 b7 a4 e6 a3 d6 h4 d7 c3 e7 c2 e8B f3 Ke3 h3 b6 a2 g6 f2 d5 f4+ Kd4 f3 d6 Ra7 Kc5 Nc6 b8Q Be7 b7 Bf6 Na3 Nge7 Ne2 Rf8 Rb1 a1R Nb5 R1a3 Rg1 h1B Nc7 h2 Kb6 Bc3 Bg2 f1R Nd4 f2 Bf3 Re1 Bh5 f1N Nf5+ Kh8 g7+ Kh7 g8R Bh8 Qd2 Bd5 R8g2 h1N Qb4 Nf2 Rg6 Ne4 Qa8 Nh2 b8R Ba6 Rb7 Qc8 d8Q Bf1 d7 Bh3 Qb8 Ng8 Qg5 Nge7 Qg2 Nd8 Qh1 Bc6 Bh6 c1N Bf4 Nf7 d8Q Nd3 Bc1 Nb2 Qd3 Nd8 Qd5 R7a5 Ra7 R5a4 Ra5 Ba8 Rb5 Ra7
b2K1brR/k1BB2nB/2R2Nnb/4QQ1N/1nn2Q2/rrQ5/2BR2r1/1q2r3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 Kc7 e4 Kb7 d4 a5 g4 h3 g5 h2 b6 a4 d6 h4 d7 c4 Ke6 f3 d5 c3 g6 c2 g7 f4 d6 a3 b5 h3 e5 a2 Qd2 f2 Ne2 f3 Nbc3 Ra5 Ne4 Qh4 Nf6 Ra8 Qc3 Rh5 Nf4 Na6 Bd3 Rg5 N4h5 f1N Bf4 c1B Bc2 Ne7 g8B f2 Bgh7 Ng6 Rb1 Be3 Rc1 a1R Kf7 Ra3 Ke8 Rb3 d8Q Nb4 d7 Raa3 e6 Nd2 e7 f1N Bc7 Ng3 Rhd1 Ka8 b7+ Ka7 b8R Bb7 Qc8 h1R d8Q h2 Qf5 Nc4 Qdd2 Bf3 Kd8 Re1 e8B h1R Bd7 Rh2 Qce5 Rg4 Qdc3 Rg2 Rd2 Beh6 Qef4 Ba8 b6+ Ka6 b7 Qh1 Rc8 Qf1 b8Q Rg5 Q5e5 Nf5 Qbb5+ Ka7 Rb8 Ng7 Qef5 Ne3 Qbe5 Qg1 Rb6 Nc4 Rc6 Re3 Rf1 Re1 Rf3 Qf1 Rh3 Qd3 Rf2 Qd1 Rd2 Qb1 Rb6 Ne7 Ng3 Nh5 Rc6 Rg8 Bg6 Ng7 Rh5 Bg5 Rh8 Bh6 Bh7 Ng6 Ngh5 Rf2 Ng4 Rfe2 Ngf6 Rg2
2b1R1b1/2N4B/N1K1r1b1/7Q/1bN1nq1n/BN1Qr3/1RQq2B1/Qnb2bk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 a5 b6 h5 d6 f5+ Ke5 f3 e4 h3 b7 f4 d3 f2 d7 a4 g5 h2 g6 a3 g7 a2 Nd2 h4 Qh5 h3 Ngf3 Na6 b8N Rh6 Bg2 f1N Nd4 f3 Rb1 a1Q Nc4 Nd2 Re1 Ne7 g8B h1B Bh7 h2 b3 c6 Rb2 f2 Re3 Qda5 d8Q Nb1 Qc7 Q1a4 Re1 Qd2 Qa5+ Qb5 Qa1 f1B Re2 Qa4 Re3 Kb4 Re2 Kc3 b4 c5 b5 Qb4 b6 Ng6+ Kd5 Nh4 b7 Re6 Nb3 Qf4 d4 Kd3 Re1 Qbd2 Re2 Bd6 Kc6 Ra7 d5 Bf8+ Nd6 c4 Re1 Nc5 e5+ Ne4 Na6 c3 b8Q Rd7 Qc7 c2 Re2 Rde7 Re1 Rh6 e6 Re8 Nc4 Bb4 d6 Rg6 e7 Re6 Bf3 Bhg2 Re2 h1B Re1 Bh3 Bg2 Bf5 Re2 Bg6 Re1 Ng5 Re2 Re3 d7 Ne4 Re1 Rf8 e8N Rf6+ Ncd6 Re6 d8Q Re2 Qdd7 Ke3 Qdd8 Kf2 Qdd7 Re7 Nc4 Kg1 Qd3 Re3 Re2 Be6 Qc8 Bg8 Nec7 Re5 Ra2 Re7 Ba3 c1B Rb2 Re5 Bh3 Bf3 Bg2 Bg4 Qcf5 Nd6 Qfe4 Bc8 Qc2 Re6 Qed3 Rh3 Re4 Re3 Re5 Rf6 Re7 Rfe6 Re8 Ne4+
1QR3Q1/2bq1Q2/b1N1BK2/1rn5/2N1br1b/Q1RB1k2/N2B1N1n/rn2b1r1 w - - 0 1 illegal: No possible last move
Q2B1knr/5N2/K2R3N/1B1b1Q2/N1q2rQr/Qn1r1n2/2R1nNb1/2b3Bn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 Kc4 h5 g4 h3 b4 h4 e4 a4 g5 a3 g6 f3 d6 f4 d5 h2 g7 f2 e5 a2 b6 h3 Kb5 c4 e6 c3 d7+ Ke7 d6+ Kf6 b7 f3 e7 Kf7 e8Q+ Kf6 Qe7+ Kg6 Be3 c2 Nc3 c1N Na4 Ne2 Rc1 a1N Rc2 Nc6 b8Q Qc7 d8B Bf5 d7 Nb3 Qc8 Ne5 Qd3 Rb8+ Ka6 Qc4+ b5 Be4 Qa3 Kf7 Bd4 Bd5 Qf5+ Nf6 g8N Bh6 Bc5 Bc1 Nh6+ Kg7 Bd4 Ng8 Ba7 Qc5 Qg4+ Kf8 b6 Ra8 b7 Rb8 Bg2 f1R Bab6 Rd1 Bf1 f2 Ba7 Ra8 b8Q Nf3 Qe5 Rh7 Qef5+ Rf7 Qb7 Rd3 Qc6 Rb8 Qa8 Rb4 Bg5+ Rb8 d8N Rb4 Bf6 Rh7 Bb6 Rh8 Ndf7+ Qc8+ Qb7 Qc5 Bfd8 Rf4 Qa7 Ng3 Be2 f1B Qa8 Bg2 Ba7 Rc3 Bb5 Rd3 Ne2 Qb4 Rd1 h1N Ng1 h2 Nh3 Ne2 Bg1 Qc5 Nf2 Qb4 Rc5 Qc4 Rd2 Nhg3 Rd1 h1R Rd2 Rh2 Rc2 Rh4 Rc6+ Ne7 Rf6 Nh1 Rd6 Ng8
3n1r1Q/k3nBN1/rn2BR1b/3brqr1/5b2/2Q3B1/KNR1rnN1/BRR5 w - - 0 1 illegal: No possible last move
1r1b4/b5nb/qB3bR1/2Q1N1NQ/B2bq2Q/3BQR2/rk2BRqK/1q2n3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 Ke6 c4 d5 b4 a5 h4 g5 e4 f5 c5 f4+ Kg2 a4 c6 f3+ Kg3 f2 b6 d3 b7 d2 b5 d4 b6 a3 h5 d3 h6 a2 c7 Qe8 h7 Nh6 Ba3 Na6 b8R Nb4 b7 Be7 Nf3 Nc2 Rh2 Ne1 Be2 f1Q Nc3 Bd8 Rf2 Nf5+ Kh2 Ng7 Bc5 Ra4 Rc1 a1B Bb6 Ra2 Rb1 Qb5 Rb3 Qa6 Qc2 Re8 h8Q d1Q Qh4 d2 Bd3 Bd7 c8B Qb1 Qc1 d1Q Qe3 Qde2 Qc5 Kf7 e6+ Kf6 e7 Bf5 Ne5 Qf3 Ra8 Bh7 b8Q Qe2 Qa7 g3+ Kh3 g2+ Kh2 Rh8 e8Q Qf5 Qeh5 g1B+ Kh1 Qf4 Bg4 Qf1 Bge2 Bb2 Qg3 g4 Qgh4+ Ke6 Rc8 g3 Rc7 Ba1 Rf7 Qe3 R7f3 Qd4 Rb2 Qda4 Rg2 Bd4+ Rg1 g2+ Kh2 Qb4 Rc2 Qac4 Qa3 Qa6 Qc1 Rg8 Qe3 Bb2 Nd7 B4f6 e5 Qg4 Ne4 Bd4 Qc8 Kd5 e6+ Qf5 Ng5 Qe4 e7 Qf2 e8B Qf1 Ne5 Qf2 Rf1 g1B+ Kh3 Rh8 Ba4 Rg8 Rc6 Rh8 Q4g4 Qg2+ Kh4 Bc5 Ba5 Ba7 Qc1 Bgd4 Qe3 Bfe7 R1f2 B8b6 Rg6 Bf6 Qf8 Bc7 Bb6 Rg8 Qa3 Rb8 Qc3 Bcd8 Qc8 Qf1 Kg3 Qh1 Qgh4 Qf1 Bc7 Kc5 Kh2 Kb4 Ba5+ Ka3 Qc5+ Kb2 Bb6 Qg2+
1Br1n1b1/2r2BrR/1Rn1B2R/2Rrn1Q1/1nQ5/5Nb1/1Kq2q2/N1Bk1Nr1 w - - 0 1 illegal: No possible last move, all moves rejected
1B2Nq2/K2n1nn1/r1b3R1/1Q2N1nk/rqbBRb1N/7B/1NR1b3/3n1RQ1 w - - 0 1 illegal: No possible last move, all moves rejected
3Nq1R1/3q1n1k/nB3rb1/N1qn1B2/q2R1b2/R3n1K1/4BQ1B/Qq2NN1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 Kf7 e4 Kg7 b6 c5 e5 c4 g5 h3 b5 h2 b7 a4 e6 a3 d6 h4 d7 c3 e7 c2 e8Q a2 b6 h3 g6 f3 d5 f4 d6 Nh6 Ba3 c1Q Qe3 Qe8 d8N Bf5 d7 Qc5 Nc6 Nf7 d8N Bd6 Na5 Na6 b8B Kh6 g7 Bg6 b7 Kh7 Be2 Rf8 Kf1 f2 Nf3 Ra7 Rg1 h1Q Ne1 h2 Nd2 Qhc6 Rg4 Qcd7 Kg2 f1N Qf2 f3+ Kh3 Ne3 Nf1 Nd5 g8B+ Kg7 Qb1 Bf4 Bh7 Ra8 Ba7 Rc8 b8R h1Q+ Nh2 Rh8 Bb6 Rc6 Rc8 Qg1 Nf1 Rf6 Bb2 Kh6 Be5 Kg7 Ra8 Kh6 Qb2 Kg7 Rd1 a1Q Rd4 Qaa4 Qa1 Kh6 Qe3 f2 Bb8 Bh5 Bf5 Bg6 Bd6 Kh7 Ra7 Bh6 Bh2 Bf4 Ra8 Qh1 Rg3 Qhe4 Qd2 Qec2 Ra3 Qb1 Qe3 Rg8 Ndc6 Qed8 Nd2 f1N Qg3 Nfe3 Nf1 Q8e7 Rf8 Qee8 Nd8 Rg7 Qf2 Rg8 Be6 Be4 B6g4 Rg5 Rg8 Bg6 Bf5 Rg1 Kh4 Rh1 Kh3 Bh6 Kg3 Bf4+
1kBQNQnb/1q6/2rNN3/K7/Q1B1Rqqn/2b3r1/3n1BBR/Qn1q1b2 w - - 0 1 legal: proof: f4 c5 g4 a5 d4 e5 dxc5 exf4 b4 h5 gxh5 axb4 Kd2 g5 c4 d5 a4 Kd7 h4 Kc7 e4 b5 a5 f5 e5 d4 a6 d3 h6 b3 Kc3 d2 Kb4 f3 a7 f4 h7 f2 h5 b2 e6 f3 e7 g4 h6 g3 c6 g2 c5 Qd7 Nc3 b1Q+ Qb3 d1Q Bc4 f1Q Ka5 b4 Nge2 g1B Nd4 f2 Rh2 Ba6 Qa4 b3 Ne4 b2 Be3 Q7g4 Nd6 Nd7 Ra2 Rb8 a8B Rb3 e8N+ Kb8 Ne6 Ne5 Ra1 Nf3 c7+ Ka7 c8B Nh4 c6+ Kb8 Bb6 Rg3 Ra3 Bb5 Re3 Bg7 Bd4 Qbe4 Re1 Qef3 Re4 b1N Bb6 Q1g2 Bab7 f1N Bf2 Qff4 Ba8 Ne7 Bab7 Rg8 h8Q Nfd2 h7 Ba1 Qd4 Rg6 h8Q Ng8 Qdg7 Qh1 Qf8 Qhf3 Qb2 Qg2 Qba3 Bh8 Qa1 Q2f3 Be1 Bgd4 Bf2 Ba6 c7+ Ka7 Ba2 Bf1 Bc4 Rh6 Re2 Qfb3 Bg2 Qb7 Re4 Rg6 Bd7 Rh6 c8Q Rf6 Qd8 Rg6 Bc8 Kb8 N6c7 Re6 Nf7 Rb6 Ne6 Rc6 Nfd6 Bc3+
2kbbRN1/qr1R2n1/Nbr2RB1/4R2B/nq6/Nb1rQr2/Q1nB4/3B2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 f3 b6 f4 b5 c4 g5 h3 e5 c3 d5 c2 b7 h2 b6 a4 g6 h4 g7 h3 Bg2 a3 Qf1 a2 Qe1 Qe7 Ne2 Na6 b8Q Nc5 b7 Ra3 Qa7 Na4 Qe3 Nh6 g8B Rd3 Nd4 Nf5 Bf7 Rh7 Q1d2 Ng7 Re1 h1R Bh5 h2 b8N+ Kd8 d7 Qb4 e6 Bc5 Bh3 Bb6 e7+ Kc7 d8R Be6 Rd7+ Kc8 d6 Bb3 e8B Rg1 Qde2 h1B Be6 Rg6 Bd2 c1B Na3 Bb2 Ndc6 Bf6 Rad1 a1N Na6 Bfd8 Beg4 Nc2 Kg1 Re6 Beg6 f2+ Kh2 f1R Bf3 Rf2+ Kg1 Bg2 Rf1 Rf6 Rde1 Bh1 Bfg4 Bhd5 Bf3 Bf7 Bfg4 Rf3 Qh2 Rh3 Bd1 Be8 Qg2 Bg8 Qd5 f3 Qa2 Bgf7 Qf2 Bc4 Re5 Bb3 Qe3 Re6 Nd4 Rf6 Nf5 Re6 Nh6 f2+ Kg2 Rf3 Ng8 Rf5 Re7 Rf3 d7+ Kb7 Rf7 Red6 Rf6 Rc6 Rh1 f1Q+ Kh2 Qe1 Rf1 Qeh4+ Kg1 Qhd4 Rf8 Ba5 Rf2 Qa7 Rf1 Bab6 Rf2 Be7 d8R Bf6 Rd6 Kc8 Rd7 Bfd8 Rf1 Rh3 R1f6 Rf3 Rd4 Nf5 Rdd6 Rb7 Rd7 Ng7
R2r1q1Q/1N3Nn1/KB1N1r1B/3B1qn1/b7/1R1NRq1b/kp1n1bQ1/3rB3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 h5 Kb5 c5 g4 e5 d4 b3 a4 e4 f4 h3 a5 b2 f6 c4 a6 e3 f5 h4 g5 h2 a7 c3 g6 h3 g7 b6 f7 e2 f6 e1Q Qg4 c2 Ne2 Rh6 Ra3 Nd7 Nbc3 b1N Qg2 Ne7 g8Q Qf2 Rb3 Nf5 Qh8 Nc5 Bd2 c1R Nf4 Ne6 Nd3 Ng5 Be1 Nd2 Rg1 Rb8 a8R h1Q Be2 h2 Bf3 Bd7+ Ka6 b5 Be4 Be7 f8B b4 f7 Rf6 Bh6 Ng7 f8B Rd1 Rf1 Qf5 Rf3 Qe8 Re3 Ba4 Bf3 Rd8 Ne4+ Kd7+ d6 Ke6 d7 Bc5 Bd6 Qf8 Bc7 Kd5+ Bb6 Kc4 d5 Qf1 d6 h1B Re2 Bf2 Re3 Rb8 d8N Qe2 Nf7 Rd8 Qg1 Bg2 d7 Bh3 Bh1 Qef3 Qg2 Rc8 d8N Rb8 Rb1 b3 Nb7 Rd8 Ned6+ Kc3 Ra1 b2 Ra3+ Kc2 Rb3 Kb1 Qg1 Qg3 Bd5 Ka2 Qg2 Qgf3
B1Q1Rr2/3Q1Nk1/2nbnq2/3K1p2/q1n4N/BbQR4/B3RqBQ/r1r3b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 Kf3 c5 Ke4 a5 b4 h3 d4 c4 g4 c3 b6 a4 g5 f3 g6 c2 g7 f2 d6 f5+ Kd5 Kf7 e4 h4 e5 h2 b7 h3 b5 a3 d7 a2 b6 Bb4 e6+ Kg6 e7 Kh7 e8B Ra3 Nd2 Qf6 d8R Ba5 Ne4 Rd3 Ba3 c1R Nd6 Nd7 b8Q Bb4 b7 Nc5 Qe1 Ne6 Bg2 f1N Qc3 Nd2 Nf3 Nc4 Re1 h1Q Re2 h2 Bc6 Rdd1 Nf7 Qf1 Re8 h1Q Nh4 Qf2 Qh2 Bd6 b8Q Rg1 Rb1 a1B Ba8 Bd7 Rb6 Ba4 Qc8 Bb3 Rb7 Bb2 Rd7 Ra1 Rdd8 Rgc1 Rd7 Qd1 Rdd8 Nh6 g8B+ Kg7 Rc2 Bg3 Ng5 Ng4 Qe3 Qfe2 Kc6 Ba2 d5 Nd6 Qe4 Nc5 Qb4 Bd4 Qc3 Bg1 Be6 Bf4 Nf7 Qf2 Re2 Rf8 Rd7 Nde4 d6 Nd2 Bb3 Ne6 Rdd8 Bg3 d7 Ne5+ Kd6 Bb1 Bbd5 Qa4 Ba2 Nc6+ Kd5 Ned4 R8e3 Bd6 Rde8 Bc2 d8Q Ne6 Qdd7 Nc4 Rd3 Bb3
1nBNRB2/qrqRq1Q1/k2nn2r/2pN4/N4RQ1/7R/4br2/b1K1bQ1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 c5 d4 Kc7 Kd2 Kb7 g4 f5 d6 a5 b6 h5 g5 a4 e5 f3 g6 h3 e6 h4 d5 f2 d7 a3 g7 f4 b5 a2 e7 h2 e8R h3 d6 f3 Ne2 Be7 Nec3 Nf6 g8Q Ra7 Nd5 Qc7 d8R Nfd7 Nbc3 Bh4 Qg4 Nf8 d7 Ne6 Na4 Rh6 Bd3 f1R Bf5 f2 Rb1 a1B Rb4 Na6 Rf4 Nb8 Bb2 Bg3 Bg7 Bh4 Bf8 Bg3 Rg1 h1Q Kc1 Qe4 Rh1 h2 Qg7 Re1 Qg4 Re2 Qd4 f1N Qdg7 Nd4 Be6 Nd2 Bf5 Rf2 Be6 Nc4 Bf5 Nbc6 Be6 Kb8 b7 Nd6 Bf5 Qe7 Be6 Ra8 Bf5 Ka7 b6+ Ka6 b8Q Qa7 b7 Ne6 Qc7 Bh4 b8Q Bg3 Qbb2 Rb8 Qb1 Rb7 Qb8 Bh4 Qa8 Nb8 Qd3+ Ka5 Qf1 Bg3 Rg1 h1Q Rg2 Bh4 Rg3 Qh2 Rd3 Ka6 Rh3+ Rb5 Ndb6 Bg3 Qah1 Bb7 Nd5 Ba8 Nf6 Bf3 Nd5 Be2 Rc8 Qf6 d8N Qfe7 Rc7 Rb7 Rd7 Rf3 Rh5 Be1 Rh3 Rf2 Rc7 Nd4 Bc8 Ne6 Rd7 Nf5 Rc4 Qc7 Rf4 Nd6
1NRN4/1K6/Q1nQNB2/pqb3nq/2RqN3/Brn3Rr/r2R1b2/1b2k2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 h5 g5 c5 g6 c4 g7 c3 d6 f5+ Kd5 c2 e4 h3 b6 h4 b7 f3 d7 f4 e5 h2 e6 h3 e7 f2 e8Q f3 Qg6 Nh6 g8R Nc6 b8N Nf7 Nc3 Bc5 Ne4 Ng5 Ne2 Bb6 Bg2 f1Q Ra2 f2 Nf4 Qb5+ Kd6 f1N d5 a5 Ne6 Ng3 b3 Qf6 d8B Qd4 Bf6 Ne2 Rg1 Ba6 Bh1 Nc3 Rc8 Rg8 Bb2 c1B Rg3 Be3 Bc1 Rf8 Rd2 Bf2 Kd7 Rg8 d6 Ra7+ Rc7 Rb7 Bb2 Rg7+ Kc8 Rh7 d7 Rh4 Bg2 h1R d8N Rh2 Bh1 Rg2 Qh6 h2 Qf1 Rh3 Qf8+ Qbc5 Qd6 Bd3 Bc1 Bb1 Qa6 Ba7 Bb2 Rb5 Bc1 Bb6 Kb7 Be1 Rd1 Ra2 Rd2 Bf2 Rb2 Ka3 b4 Ka4 Rd2 Kb3 Ba3 Qcd5 Bf3 h1Q Bg2 Qd1 Bh1 Qh5 Rc8 Rc5 b5 Rc4 Rdd3 Kc2 Rd1 Rb4 Rdd3 Ba7 b6 Rb3 Rd1 Qb5 Rc7 Ne5 Rc4 Nc6 Rdd3 Qe3 Rdd4 Qd2 Rd5 Kd1 Rdd3 Ke1 Rd5 Qc2 Rd2 Qb2 Ka8 Rh4 b7 Nd1 Nd7 Bab6 b8R Rh3 Kb7 Qd4 Rc8 Nc3 Nb8 Bc5+
RRB1nK1k/2R1rq2/2Br2p1/rq4b1/2qb2B1/NQN5/b3Q2n/N1N3Bn w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 a5 Kd3 d5 c4 f5 b4 Kf7 h4 g6 e4 Kg7 b6 a4 e5 a3 h6+ Kh7 c5 f3 b5 f2 h5 f4 b7 a2 b6 f3 e6 Qg5 c6 Na6 b8Q Qe7 b7 Nf6 c7 Qd8 e7 Bh3 e8B Ne4 c8B Bf5 Qe2 Bc5 Na3 Bd6 Be3 Qd7 Bh3 f1N Bg4 Qf7 Bc6 f2 Rc1 Kg8 h7+ Kg7 Rh2 Re8 h8N a1B h6+ Kg8 Rh1 Bf4 h7+ Kg7 Nf3 Re7 Nd2 Nc7 Nb3 Ne8 Rc4 Bb2 Na1 Nh2 Ra4 f1Q Bg1 Be6 Rc4 Qf5 Nf7 Ra5 h8N Bg5 Nd6 Qf7 Ndb5 Ng3 Nc3 Q1f4 Bb5 Kg8 Rc7 Kh7 Bc6 Qe5 Kc2 d3+ Kb3 d2 Kb4 d1Q Rd7 d4 Rc7 Qg8 Nf7 Qf5 Ne5 Qdf1 Nd3 Ba2 Nc1 d3 Bh3 Qff7 Bhg4 Ra8 Kc5 d2 N3c2 Kh8 Na3 Ng7 Kd6 Ra5 Qa8 Qc4 b8R Qgf7 Qb7 Q1f5 Qb3 d1R+ Nd5 Bd4 Nc3 Qfb5 Ra8 Bh6 Rb8 Nf3 Rh4 Nh1 Rh5 Nh2 Rf5 Qg8 Rf8 Bg5 Rd8 Re6+ Kd7 Ne8 Ra8 Re1 Rb8 Rf6 Ke7 Qgd5 Ra8 Rd6+ Kf8 Qe6 B8b7 Qd7 Rdb8 Qh7 Bbc8 Qd7 Qed1 Re7 Qe1 Qde6 Qe2 Qf7#
b1r2N1k/b7/r4p1n/q2BN1R1/q3Q3/R1rbQRQ1/1q5B/1RNKn1Qn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 b4 c5 g4 h5 e4 f3 d6 f6 g5 Kf7 d5 Kg7 g6 a4 b6 h3 d7 c4 e5 h4 e6 c3 d6 c2 b7 a3 e7 a2 e8Q h2 b5 h3 b6 Ra3 Bc4 Na6 b8N Nb4 b7 Rh6 Nd2 Na6 Nb3 Nb4 Qe4 Ra7 Bf4 c1R Bd5 Qa5 d8R Bf5 d7 Rc8 Nc1 f2+ Kd2 f1Q Nf3 Ra8 Ne5 Qfb5 Qg1 Kh8 Kd1 Nd3 Re8 Rh5 d8Q Nh6 Qe7 Qb2 Nbd7 Ne1 b8Q Ra6 Qa3 Rg5 Qae3 Rg3 Rb1 a1Q g7+ Kh7 g8R Q1a4+ Qbb3 Bc5 Rg5 Ba7 Nf8+ Kh8 Ra1 Bh7 Ra3 Rf3 Qd2 Rfc3 Qde3 Bf5 Re7 Bg6 Rg7 Bf5 Rg3 Bh7 R7g5 Bg6 Rf3 Bf5 Qg2 Bg6 Rhf1 h1B Qgg1 h2 Bg3 Bg2 Bf4 h1N Bh2 R3c5 Qc4 Bd3 Qce4 Nc2 Qc3 R5c6 Qce1 Rc3 Qg3 Ne1+ Nb3 Qb6 Bc6 Rd8 Qf5 Rc5 R3f2 Qa2 Rb2 Qc7 Rb1 Qca5 Be4 Rc2 Nc1 Qb2 Bc6 Bd5 Qfe4 Ra8 Rf3 Rc8 Bd7 Bb7 Bc6 Ba8 Bd5 R2c3+
1RQBn3/2B1RnKn/bNrB2Rn/1r1nr1pq/1b6/3B2R1/bQ2Nk2/3Q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 d4 a5 h4 f5 e4 c5 b6 a4 b7 g3+ Kf3 c4 h5 a3 b5 c3 h6 a2 h7 g2 b6 c2 Nc3 Ra6 Bb2 c1N Qd2 Be6 Rh5 Qh4 Rg5 Qh5+ Rg4 Nd3 Nge2 Nh6 Na4 Nd7 b8R Nf6 b7 Rc6 Qd1 g6 Rc1 a1R Nb6 Ra5 Rc3 Rb5 Rb3 Rg8 h8Q Rg7 Re8 Re7 b8R Bg8 Bc3 Re5 Re7 Be6 Be1 Bg8 Bg3 g1N+ Kg2 Nh3 Kf3 Nh7 Ra3 Nhf2 Ra6 g5 Bh2 Qg6 Rg3 Nfg4 Qg7 Nf7 Qh8 Nc5 Qg7 Ngh6 Qh8 Nd7 Qg7 Rc4 Qh8 Kc7 d6+ Kc6 d5+ Kc5 Qg7 Ndf6 d7 Rc1 d8B Rc2 d6 Qh5+ Rg4 Rc1 d7 Rc4 Bc7 Rc2 Kg2 f3+ Kg3 f2 d8B f4+ Kf3 Nh8 Bg3 Ba2 Bh2 N8f7 Qh8 Rd5 e5 Rc1 e6 Re5 Rd7 Rc2 e7 Rc4 e8Q Rc3+ Kg2 f3+ Kg3 Rc2 Re7 Rc4 Bg2 f1B Qg7 f2 Be4 Rc2 Bd3 Rc3 Qd7 Rc4 Qc8 Rc3 Nf4 Kd4 Ne2+ Ke3 Qh8 Bg2 Qg7 Bb7 Qh8 Rc6 Qg7 Qg6 Kh3 f1N Rg3+ Kf2 Bd6 Nh5 Qh8 Ne3 Qg7 Rf5 Qb2 Nd5 B6c7 Ng8 Kg4 Re5 Rd7 Bb4 Re7 Qh6 Bd6 Re4+ Kf5 Nh5f6 B6c7 Qh4 Kg6 Ngh6 Kg7 Qh5 Re3 Ree6 Bhd6 Re5 Rg3 Bc5 Ra4 Ba6 Re4 Bb4 Re6 Nfg8 Rg6 Ngf6 Ree3 Rf5 Re6 Re5 Re7 Ne8+
1nKNq3/1N2Rb2/p1Rb1n1n/2Qb2nn/2B2krN/R4r2/1NQrQ3/2Q1B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 c5 b4 f6 g4 h3 g5 h2 b6 h4 g6 f3 g7 h3 b5 f2 b7 c4 b6 a6 Qc2 c3 Nd2 Qd7 Nc4+ Ke7 d6+ Ke6 d5+ Kf7 Ra3 Kg6 Bd2 f5+ Ke5 Qc6 e4 f4 d7 Kg5 d8N Rh4 d6 Nh6 d7 Rg4 Nb2 Bd6+ Ke6 Qb5 Be1 f3 g8R+ Kf4 Be2 f1R e5 f2 Nf3 Ra7 Rg1 h1N Rg6 h2 Bc4 Ng3 Nh4 h1B Rg7 Ne4 Re7 Nf6 Rg3 Nc6 b8Q Bb7 Qc7 Nb8 Rg1 Bbe4 b7 Bg6 Qc5 Bh5 Qa4 c2 Rgg3 c1N Qc2 Be4 Rgc3 Nb3 Qc1+ Nd2 Rc2 Nc6 b8Q Ra8 Qc7 Nb8 Rcc3 Bf3 Qc2 Nde4 Nb7 Bg2 d8N Qe8 Rcb3 Bf3 Rb6 Bh1 Rc6 Ra7 Bc3 Rd1 Be1 f1N Q7a5 Rd2 Qac3 Nfg3 Qc1 Nh7 Q3c2 Nef6 Qg1 Bb4 Qc5 Bd5+ Kd6 Ng5 Kc7 Bg6 e6 Ngh5 Kc8 Ra8 Rd7 Bf7 e7 Bc3 Rdc7 Be5 Rd7 Bd6 Rdc7 Qh8 e8Q Qf8 Qe2 Qe8 Rd7 Ra7 Na5 Rb7 Re7 Rb3 Nb7 Rf3
K2Bbb1r/3BNbp1/1QBk2n1/b3nR2/5QNr/1n2b1B1/1r3R2/Rq2N2N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 c5 e4 f5 h4 g3+ Kf3 g2 h5 c4 d6 a4 h6 a3 h7 a2 b6 c3 e5 c2 b5 Qe7 e6+ Ke8 b7 Qg5 d7+ Ke7 d8N Nf6 d5 Qg6 d6+ Ke8 d7+ Ke7 b6 Qh6 Qd4 Ng8 Nf7 Ra6 d8B+ Ke8 e7 Qg5 Rh2 Ra4 Bb5+ Nc6 b8R Qf6 b7 Qg6 Nd2 Bd7 Ne2 g1B Ne5 Be3 Qb6 Qg1 Bb2 c1N Rf2 Nb3 Ng4 Qb1 Be5 Kf7 e8B+ Ke6 Ng3 Ne7 Rc8 Ng6 b8Q Re4 Nh1 Rc4 Bd6 Nce5+ Ke2 Bc6 Nf3 Rb4 Ne1 f3+ Kf1 Bd7 Rc5 f4 Ba4 Rc4 Bc6 Rc2 Kg1 Rb2 Kh2 Nd3 Rf5 Nde5 Rd2 f2 Kg2 f1R Rf2 f3+ Kg3 Rg8 h8N Rg1+ Ng2 Rd1 Ne1 Rd4 Q8c7 Ne7 Ng6 Rh8 Nh2 Rdh4 Ng4 Nd5 Ne7 Nf4 Qb4 Nfg6 Qcb6 Bc1 Qf4 Be3 Rg2 f2 B6c7 f1B Rf2 Nf7 Kf3 Bc4 Be5 Bd2 Bd6 Ba5 Ke3 Nfe5 Bb8 Nd2 Kd4 Bb3 Kc5 Bd5 Ba7 Nb3+ Kb5 Kd6 Ka6 Bf7 Kb7 Bde6 Bed7 Be8 Kb8 B6f7 Ka8 Qd1 Rb1 a1B Rc1 Ra2 Rb1 Bd4 Ra1 Qd3 Qb5 Be3 Bb8+ Bc7+ Qa5 Rb2 Qb6 Qb1 Qa6 Kc5 Qe4 Ba5 Bbc7 Bd5 Qb7 Nf3 Bg3 Nfe5 Qf4 Kd6 Qb6 Bdf7
RnbkB2q/1q5q/5Rn1/3N1r2/1BBN2n1/2Bn2RQ/RQnp1brN/5K2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 a5 f4 h5 c4 e5 g4 d5 b6 h3 g5 h2 b7 a4 g6 d3 g7 a3 c5 e4 c6 e3 f6 e2 b5 d4 c7 h4 f5 h3 f7+ Kd7 b6 a2 f6 Ra6 Nc3 Bb4 f8N+ Ke8 f7+ Ke7 Qb3 Rh5 Bd2 Ra4 Nf3 Bc5 Ne6 Rf5 f8B+ Kd7 Bd6 Ne7 g8R Ng6 Nd5 Ra8 Rg1 h1Q Rf8 h2 Rf6 Qh8 Bc3 d2+ Kf2 d1Q Rg3 e1N Bc4 d3+ Nd4 d2 Qb2 Qb3 Be7 Nc6 b8Q Nd3+ Ke2 Qb1 b7 h1N Nh2 Nhf2 Bf8 Bb6 Bfb4 Ng4 Qa7 Bc5 Qaa3 Ra6 b8R Ra7 Ba5 Qb7 Ra8 Nb8 Bab4 Ra5 Qab3 Rg5 Q3a3 Qc2 Kf1 Rb5 Re1 a1N Ree6 Ra5 Rea6 Ba7 Qab3 Rc5 Ra2 Ra5 Nc6 Bf2 Nd4 Rb5 Ne7 Rbf5 Nd5 Ke8 Q3a3 Be6 c8B Kd8 Bd7 Qb1+ Kg2 Nc2 Be8 Bc8 Qab3 Qe1 Q3a3 Qee7 Kf1 Qeh7 Qa7 Qc6 Qg7 Qb6 Qh6 Qbb7 Qh3 Nh6 Re3 Rg2 Rg3 Ng4
b2K2BQ/2r1Bq2/N3r3/1Bq2R2/RRQ5/n3p3/RN3Nk1/Bbrbbbn1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 f4 e5+ f6 d5 c4 a5 b4 h5 g4 d3 c5 a4 f5 a3 c6 h3 b6 h2 c7 d4 b5 d2 b7 d3 b6 h4 Ra2 h3 Qb3 d1R Bb2 d2 Bc4 Qd6 f7 Nc6 b8B Ba6 c8Q Rh6 b7 Nge7 f6 Qc5 Qe8 Ng6 Ba1 Ra7 Bb5 Nf4 Qc4+ Nd4 Bd6 Rc1 b8N d1B Be7 Ne2 Nd2+ Ke3 Qd8 Kf2 Qc8 Bg7 f8R Nc2 f7 Rc7 Rd8 Kg2 f8R e4+ Rf5 e3 Rd4 Rf6 Qh8 Re6 Re4 Bc3 Rf4 Re5 Kf6 Re6+ Kf7 Bb4 Ke8 Bc3 g5 Bb4 Ne4 Be1 Nf3 Ng1 g6 Bf2 g7 Be1 Rb2 a2 Nfd2 Na3 g8B Rg6 Bc6 Re6 Rb4 Bb5 Kd8 Ba6 Be5 a1Q Bb5 Qa2 Nf2 Qb3 Ba1 Qa2 Be8 Bb5 Na6 Qb3 Qcc3 Bf1 Bb5 Qbc4 Rh4 Qf4 Nc4 Qf3 Re5 Qf7 Nb2 Qh7 Ne4 Bd3 Rd4 Kf3 Ra4 Bb1 Nd3 Qf7 Qb3 Ne2 Rg1 h1B Rg2 Ng1 Ra2 h2 Nef2 Bg2 Nb2 h1B Rhb4 Bf1 Rf5+ Kg3 Qd3 Ba8 Qc4 Kg2
QrR2b2/3BnqQq/2b3r1/4b1Br/5R1R/p1B1NB1r/k4K2/rN2nQQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 a5 g6 h5 b6 f3 g7 a4 b7 f2+ Ke2 f4 b5 a3 b6 h3 Ra2 c4 Nf3 h2 Bg2 f1R Bb2 h4 Ne1 h3 Bf3 c3 Nc2 Nd7 b8Q+ Qc7 b7 Ra6 Ne3 c2 Bc3 c1B Qa7 Ne7 g8Q Ne5 b8Q Nd3 Qba8 Bb7 Qg1 Ne1 Qd3 Bb2 e5+ Kd7 d6 Ke6 d7 Bc6 d8R Rb6 Bd2 Rh5 Re8 Rb8 Bc3 Rh6 Qg7 Rg6 Rc8 Rfg1 Qb6 R1g5 Kf1 Rh5 Kf2 Qb7 Rf1 h1Q Qdb5 h2 d5+ Kd7 e6+ Kd6 Qd3 Qd7 Qc4 Qe8 Qd3 Qf7 Qf5 Ba1 Rb2 Rh3 Rb4 Bb2 Qbd4 Ba1 Qd1 Kc5 Qff6 Bb2 d6 Rh5 d7 Rh3 Bd2 Be5 d8B Rh5 Bc3 Rh3 Bh5 f3 Rh4 Kb5 Qg5 Kc5 Qg1 Kb5 Ng4 Kc4 Qc1 Kb3 Ne3 Ka2 Bg4 Nf5 Bg5 Ne7 Rh6 Nd5 e7 Rh5 e8B Ne7 Bed7 Rh3 Qd1 Rh5 Qd4 Rh3 Qf4 Rh5 Kg3 f2 Rh8 Qe4 Bf3 h1R Rh6 Nc2 Kg2 R5h3 Rh4 Qef5 Rd1 f1R Rd4 Rd1 Kf2 Ne1 Rc4 Qd3 Qf5 Rc1 Rcf4 Qc2+ Nd2 Ra1 Qd3 Qb1 Qdf1 Qe4 Nb1 Qef5 Qh6 Qh7 Qg7 Qf7 Rhg4 Rh5 Rh4 Rh3
1B2n2Q/1b4rQ/N3N2K/NNB2B2/1R1Bq1b1/pb4b1/r2n2nR/b1Rqk3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 Ke5 e4 Kd4 g4 h5 e5 c5 b6 f5 d6 a5 b5 h3 b7 h2 g5 c4 b6 a4 g6 h4 g7 h3 d7 c3 e6 c2 e7 Nc6 b8B Na5 e8R Bd6 b7 Nb3 Bd3 Rh7 Ba3 c1B Nc3 Nf6 g8Q Bb2 Qh8 Rg7 Rc1 Ba1 Qc2 Ra7 Re5 Ne8 Rb5 Qe7 d8N Qe4+ Kf2 Be6 Rb4+ Bc4 Qb1 f3 Bb2 f4 Nc6+ Kc5 Na5 Kd4 Bc2 Ra8 d3 Nd2 Ba3 Nf1 Bb2 Ne3 Ba3 Ng2 Nb5+ Kd5 d4 Bb3 Ne2 Ra7 Rhd1 h1Q Rd2 h2 Bd3 Qd1 Ra2 Ke6 d5+ Ke5 Ned4 h1B Ne6 Kf5 Bb2 Kg4 Bd4 Bc7 d6 Ra8 d7 Ra6 Bf1 Bd6 Kg1 f2+ Kh2 Kf3 Bd3 f1B Kh3 Be2 d8B Ra7 Be7 Be5 Bb2 Kf2 Bd4+ Ke1 Bec5 f3 Rb2 f2 Rbc2 Nf4+ Kh4 f1N Rd2 Bg4 Rh2 Nd2 Bc2 Rh7+ Kg5 Rg7+ Kh6 Ng2 Bd3 Bg3 Bc2 Qe5 Bf5 Qd5 Bbe5 Qe4 b8N a3 Na6 Rab7 Bb8 Rbc7 Bb6 Rc2 B6a7 Ra2 Qc2 Ne3 Qc7 Bhf3 Bac5 Ng2 Qe7 Qe5 Qf7 Bb7 Qfg8 Qe2 Qgh7 Qe4
1N1R3r/n2Q1n1r/K2bN3/3qR3/2b3pB/q1B2nqR/1nBR1n1Q/2k3NB w - - 0 1 illegal: No possible last move
1q2NBr1/1Q1Q2q1/3Q2bn/KR2b1N1/1b3pRN/Q2Rnq2/2kb2Bb/1r1N4 w - - 0 1 illegal: No possible last move, all moves rejected
QQb2r2/q1B3kq/5nN1/KRRBn1q1/R1Bp1bQn/2n2R2/N3Q1r1/3n4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 h5 c4 e5 f4 d5 b4 a5 f6 h3 f5 a4 c5 h4 b6 d3 Kc3 e4 b7 a3 c6 h2 g5 h3 g6+ Ke8 f7+ Ke7 b5 Kf6 c7 a2 g7 d2 b6 e3 Nf3 e2 Ne5 e1Q Bc4 Qf2 Ng6 Nc6 b8Q Ne5 b7 Qa7 Qe2 d1N+ Kb3 d4 Nc3 Qd5 Bf4 Bd6 f8Q+ Qf7 Rf1 h1N Rf3 h2 Rc1 a1Q Na2 Nc3 Bg3 Be6 c8Q Nf2 Bf4 Bc7 Kb4 h1N Rc2 Rh2 Bg3 Nh6 g8B Nhg4 Qfd8+ Kg7 f6+ Kh6 Qe8 Qh7 f7 Nf6 f8R Qg1 Bd5 Bh3 Qg4 Rg2 Bc4 Kg7 Bgd5 Nfd1 Qc6 Na4 Ra3 Nac3 Ra4 Qe3 Qa6 Bd6+ Ka5 Qg5 Bh2 Ng3 Rc1 Ng8 Rf3 Nf5 Bf4 Nh4 Bg3 Nf7 Bh2 Bf4 Rc2 Bd2 Bc7 Nf6 Qbc8 Qh8 b8R Qb7 Bb5 Bf4 Qge6 Nce4 Rc5 Qh7 Bbc4 Nec3 Qb6 Bd7 Qbe6 Ne5 Qg4 Bb5 Qa7 Ba6 Qb6 Qa7 Qc6 Nd3 Rbb5 Ne5 Q8b7 Re8 Qb8 Rf8 Qca8 Bc8+
N2N1b1R/4nnR1/1B2b1Q1/1Q3NNb/2p1n3/Q1qB1q1Q/br3b2/1rBk2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 d4+ Ke4 b6 f5 e3 h5 d6 a5 d7 c5 b7 f3 b5 f4 d5 h3 d6 h2 g5 a4 g6 h4 g7 a3 b6 h3 Bb2 a2 Ne2 Nh6 g8Q Nc6 b8Q Qc7 d8B Ne7 d7 Nf7 Nd2+ Kd3 Qa7 Rb8 b7 Rh7 Rc1 a1B e4 Rh6 e5 Rb6 Ba3 Rb1 e6 Qe5 Bb6 Qc3 Rg1 h1Q d8N h2 Qb3 c4 Ne4 Bb2 Nf6 Kd2 Qg6 Bd7 Rc2+ Kd1 Ng3 Ba4 Qb5 Bb3 Nh7 Ba2 Nf5 Bc1 Qaa4 Bd2 Bd3+ Be1+ Kf1 f2 Bc1 Qf3 Ng5 h1B Qa7 Qg4 Qd7 Bf3 Qa3 Qh3+ Rg2 Bh5 Qc8 Qf3 Re2 Ra8 b8Q Ra4 Qe5 Rab4 Qb5 R4b2 Rg4 Qe3 Kg2 f1B+ Kh1 f3 Rh2 Qe2 Kg1 Bh3 Qcd7 Nc8 e7 f2+ Kh1 f1N e8N Nd2 Kg1 Bg3 Nc7 Qf3 Na8 Ne7 Qde6 Be1 Qe3 Ne4 Rg3 B3g4 Rgg2 Qf4 Qh3 Bf2+ Kh1 Nd5 Ne3+ Ke1 Qe6 Nd2 Nh7 Ng5 Qh4 Ne7 Qf6 Be6 Nf5 Nf7 Rg7 Be2 Ng5 Qg3 Qg6 Kd1 Qg4 Ne4 Rh8 Qe3 Qh3 Bh5 Kg2 Qf3+ Kf1 Be1+ Kg1 Bf2+
R1R4N/rq1r3B/3qNQbr/1n1k2B1/2pnN3/RR6/nB1bn2n/5KQB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 d4 Kd6 b4 f5 g4 c5 b6 a5 b5 h5 g5 c4 b7 a4 b6 f3 g6 f4 g7 h3 Bd2 a3 Ne2 h4 Bg2 a2 Nbc3 Nc6 b8R h2 b7 Nge7 g8B Ra7 Ra8 Bf5 Bh7 h3 b8B+ Qc7 Kf2 Nc8 Qe1 Bh6 e5+ Kd7 d6 Ke6 d7 Nb4 d8Q Nd6 Qh4 Rd8 Rb1 a1N Rb3 Qb7 Ne4 Nb5 Qg5 Nac2 d5+ Kf7 d6 Ke6 d7 Bg6 Rg1 h1Q Ra3 h2 Nd4+ Kf7 Qa1 Na2 Rb1 Qd1 Rbb3 h1R Bc1 Rh4 Bh1 Qd3 Kg1 f2+ Kg2 f1N Bb2 Ng3 Qg1 Ne2 e6+ Kg7 e7 Kf7 e8R f3+ Kf2 Rh3 Qe5 Bd2 Qeg5 Rh6 Bf4 Ra6 Rg8 Ra7 Qf5+ Ke7 Ne6 Qdd5 Rh8 Ncd4 Qe5 Rc8 d8N Rc7 Nf7 Rd7 Rhc8 Qdc6 Kf1 f2 Kg2 f1N Nh8 Nh2 Qf5 Rd5 Bg5+ Kd7 Ng3 Kd6 Qf6 Qcc7 Kf2 Kc6 Kg2 Rd7 Ne4 Kd5 Kf2 Qd6 Kg2 Ng4 Kf1 Nh2+
Qn1B2Nn/1N2Nnk1/r5B1/rB2pK1n/3RQnq1/Q1Q2qr1/2bB3b/4R3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 h5 Kf4 a5 g4 c5 d4 a4 b4 h3 d6 h4 d5 e6 g5 e3 g6+ Kg7 d7 a3 d6 a2 b6 c4 b7 e5+ Kf5 e2 f4 e1R b5 c3 b6 h2 Nh3 c2 Qe2 Rh5+ Ng5 h3 Nc3 Rh6 Nh7 Qh4 Qe4 Ra5 Bd2 c1N Nf6 Be7 Bb5 Nd3 Ncd5 Rg1 Rd1 Rg3 Rhe1 Bf8 Ne7 h1Q Qf3 a1N Qe4 Na6 b8Q h2 b7 Nc2 Qc7 Nb8 Qc3 Qf3 Qc5 h1N Qc3 Na6 b8Q Ncb4 Qbb7 Nd5 Qa8 Bb7 d8B Nb8 d7 Bc8 Nc6 Bc5 Ne7 Bg1 Nc6 Kf8 Ne7 Bh2 g7+ Kf7 Rb1 Bb7 Rb4 Rhg6 Rd4 Bc6 Bc4 Ba4 Bb5 Bc2 Ne8 Ngf6 g8B+ Kf8 Bh7 Ng4 Nf6 Kg7 Nfg8 Rc6 Bg6 Rca6 Nc6 Nh6+ Ke6 Ra7 f5 Nf7 Nce7 R7a6+ Nc6 Kh8 f6 N5f4+ Kf5 Nh3+ Ke6 Ndf4+ Kf5 Nhg5 Nce7 Nf2 Bc7 N2h3 d8N Nh5+ Bf4 Qg2 Bd2 N3f4 Nb7 Qf3 Bb6 Nd8 f7 Kg7 f8Q+ Kh8 Nc8 Ndf7 Qfa3 Kg7 Nce7 Nh8 Bc7 Ngf7 Bd8 Qhg4#
4r1NB/1N1Qr1Q1/2rb1Q1K/qbRp4/7N/b1B2rNB/2nQ2q1/nk3r1R w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 b4 e5 f4 d5 c4 d3 c5 d2 b6 a4 c6 h3 f6 h2 c7 a3 g5 a2 b7 Nc6 b8Q Nd4 b5 Nb3 f7 Ra3 b6 Nh6 f5 Ba6 c8Q Bd6 f8B Bb5 g6 Ng4 f6 Ne3 g7 Nc2 b7 Qa5 Bh3 Kd3 g8N e4 f7 e3 Bb2 e2 Bfg7 e1R f8Q Re7 Qa7 h6 Kg6 h5 b8N h4 Nf3 Rh6+ Kg5 Rhe6 Qc1 d1R Qcd7 Rf1 Nc3 Rfe1 Rb1 a1B Ne2 Re8 Bbf6 Bb2 Ng3 Nba1 Bh8 Rc3 Qf4 Bba3 Kh6 R1e3 Nc6 R6e7 Nd8 Rc6 Rhc1 h1R Bc3 Rg1 Q8f6 Rf1 Bg4 h3 Nb7 h2 Nh4 h1Q Bh3 Ref3 Qd2+ Kc4 Qg1 Qg2 Qa7 Bb2 Qad4+ Kb3 Qg7 Ka2 Qdf6 R1f2 Rh1 Bba3 Rb4 Rf1 Rc4 Kb1 Rc5 Rd3 Rc4 Rde3 Rc5 Rf3
2qb2R1/r1r4Q/bk1rRb1p/2r1B3/1N1r3R/N1Qq3n/5B1K/1B2NNRn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 f5 d4 a5 g4 c5 Kg2 Kc7 b4 f3+ Kh2 h6 g5 f4 g6 a4 b6+ Kb7 b5 c4 g7 f2 d6 f3 d7 c3 e5 a3 d5 a2 d6 c2 e6 h3 e7 Rh7 e8R Qh4 d8R Qc4 d7 Ne7 g8N Ng6 Ne7 Na6 Qd2 Ra7 Nd5 Nb4 Qc3 Be7 Bd3 f1Q Na3 f2 Ne3 Nf4 Nf3 Qe6 Bb2 c1R Bb1 Qd3 Ne1 f1R Rg8 Qc6 Rde8 Bd8 Re6 Rg1 Nf1 Rg6 Rg1 Rf7 Rg4 Rf5 Rh4 Rc5 Qe5 R1c4 Qc3 Rd4 Bc1 Rf6 Be3 Qc7 Bf2 Rf7 Kg1 h2+ Kh1 Nh3 Kg2 Bg5 d8Q h1R Qd7 Bd8 Qe7 Rd6 Qd7 Rg1+ Kh2 Rg4 Qe7 Rgd4 Qd7 Kb8 b7 Rh7 Qg7 Qd7 Qh8 Kc7 b8N Kb6 Nc6 Ba6 Qg7 Qc8 Qh8 Rhc7 Qh7 Nd5 Nb4 Ne7 Qb2 Ka5 b6 Nf5 b7 Ng3 b8B Nh1 Qc3 Kb6 Bc2 Rdc6 Rd1 a1B Bb1 Rcd7 Be5 Rdc7 Rd2 Rcd6 Re2 Qc4 Re3 Bb2 Reg3 Qd3 Rg1 Bc1 Qg7 Bcg5 Qh7 Bgf6
2rn4/2rn1R1N/1b1Q2p1/Q4N2/R1b1B1Nn/K1BnnB2/2kqR1Nr/2B4q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 f5 e4 a5 h4 g3 e5+ Kc7 b6+ Kd7 e6+ Kd6 b7 c4+ Ka3 f3 b4 a4 b5 g6 h5 f2 e7 g2 e8B c3 b6 f4 h6 c2 h7 f3 Be2 f1R Nh3 g1N Ng5 f2 Nd2 Nf3 Nb3 Ne5 Bf3 Bg7 Rh2 Re1 Bc6 f1N Re2 Nbd7 b8N Qe7 b7 Nf7 Qd2 Qf8 Qa5 Qd8 Be4 Ne7 Bf3 Re8 h8B Ra7 Nh7 Ne3 Ra2 Rh1 Be4 Nde5 Nd7 Rh2 b8Q+ Rc7 Ndf6 Be6 Ng4 N7f5 Ba8 Nh4 Qbb4+ Kd7 d6 Bc4 d5 Qg5 Qbc5 Rec8 Nd4 Nd8 Nf5 Qf4 Bf3 Qd4 Qcb4 Qd2 Ra1 Nec6 Qb8 Bd4 Bb7 Ba7 Bc3 Ne5 Be4 Bb6 Bf3 Ke8 d7+ Kf7 d6 Ke6 Ra2 Bd3 Bbe4 Bc4 B1b2 c1N Ra1 Nb7 d8R Nd7 Rf8 Nd8 Rf7 Nd3 Bc1 Nf4 Kb4 a3 Ka4 a2 Ka3 Nf8 d7 Nd3 Rb1 Nb7 Rb2 a1Q+ Ra2 Nd8 Ne7 Nc6 d8N+ Kd6 Ne6 Nd8 Nf4 Nd7 Ng2 Qb1 Qa4 Kc5 Nf5 Qa1 B1b2 Qh1 Bc1 Ba6 Qa5+ Kc4 Ra1 Nf4 Bb7 Kd3 Bbc6 Kc2 Bce4+ Nd3 Ra2+ Kd1 Ra1 Bc4 Ra2 Rc5 Qd6 R5c6 Rb2 R8c7 Rb4 Kc2 Ra4 Rc5 Bb7 Rc8 Bbe4 R5c7
b1rnR3/k1q1RQ2/qbQpB3/4N1qr/b3NB2/2Kb1bB1/RNn5/1B2R3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 g4 a5 b4 h5 c4 e4 f4 d3 b6 e3+ Kc3 d2 b7 a4 f6 h3 b5 h2 b6 e2 f5 e1Q f7+ Ke7 g5 Kd6 f6 Kc6 c5 h4 g6 h3 g7 a3 Nf3 a2 Qa4+ Kd5 c6 Kc5 c7 d1B+ Nbd2 Nc6 b8B Qee7 b7 Kb6 Ne5 Nd4 Ne4 Nh6 g8B Nc2 Bf4 Bg7 f8Q Nf7 Bd3 Rh5 Rf1 h1B Re1 h2 Bg3 Bhf3 Qc6+ Ka5 Bf4 h1B Qe8 Qd6 Qe6 Q8e7 Qf5 Nd8 f7 Bde2 f8R Qg5 Be6 Qde7 Rf7 d6 Ba7 Bf1 b8R Bd7 c8N Be8 Bf2 Qc7 Nb6 Bf6 Kc4 Ka6 Kc3+ Ka7 Re7 Bg7 B2g3 Bh6 Qc4 Ba4 Qf7 Bg7 Qc6 Bh8 Bb5 Bd3 Nc4 Bhg2 Nb2 Bg7 Rad1 a1Q Rd2 Bh6 Bbc4 Bg7 Ba2 Bf6 Rb3 Rc8 Bb1 Qa2 Rde2 Bh1 Ra3 Qc4+ Kd2 Qa6 Ra2 Bg7 Ng4 Bd4 Ne5 Bb6 Kc3 Bdb5 Rh2 Bd3 Rh4 Qf6 Rg4 Qh6 Rg8 Qg5 Rge8 Qg6 Qc5 Bfe2 Nf6 Ba8 Qc6 Bf3 Ne4 Qg5
2bB1Qnk/3B2Nq/N2p1Q2/2Nn1b2/B3b2b/r1R1Bb2/rR2KNR1/2r4q w - - 0 1 illegal: No possible last move, all moves rejected
rk2qr1n/R7/5NN1/N1pbb1rQ/B1n5/B1r1R1BR/r1Q1r3/R3rKN1 w - - 0 1 illegal: No possible last move, all moves rejected
R4N1Q/1r3q1K/2R3RR/1kBb3N/2nBbQnn/bB6/q4q1p/1Q1Bqr2 w - - 0 1 illegal: No possible last move, all moves rejected
Q4q2/8/Qr1n1K2/2bNn1B1/bN1B1BB1/Q2rnq1q/2q1R1p1/Nk2b1RN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 e5+ Kd7 h5 a5 d6 Ke6 d7 Kd5 b6 Ke4 h6 a4 b7 f3 Kg3 c4 h7 f2 d5 a3 e6 a2 d6 c3 e7 c2 e8N Nf6 b5 Nc6 b8Q Ra6 b6 Ne5 b7 Rb6 Be2 f1Q Nc7 Ne8 Bf4 c1Q Qb3 Qc2 Qa3 Rg8 h8B Qf3+ Kh2 g3+ Kh3 Qf6 d8N Bd7 Nd5 Ba4 d7 Bc5 Qa7 Nd6 b8Q Qf8 Nc6 g4+ Kh4 g2 d8B g3 Nh3 g1B Bdg5 Bgf2 Qba8 Be1 Ncb4 g2+ Nf2+ Kd4 Rf1 Rg7 Qa6 Rd7 Nd2 Rd8 Rc1 a1Q Rg1 Qac3 Ra1 Q3b3 Ra2 Rd7 Bg3 f4 Nh1 Qbd3 Nb3+ Ke4 Nc7+ Ke3 Na1 Kd2 Rb2 Kc1 Ncd5 Qdf5 Ra2+ Kb1 Bhf6 Qfc3 Bh5 f3 Bg4 f2 B3f4 f1N+ Kh5 Qf3 Bg7 Qcb3 Re2 Qfc2 B7f6 Ne3 Bh8 Qc8 Kh6 Rd8 Kg7 Qbd3 Kf6 Qh7 Qc3 Qhh3 Qa3 Rd7 Bg7 Qe8 Bh8 Rd8 Bg7 Qf8+ Ke6 Nc6 Nc7 Nc8 Bb2 Rd4 Ncd5 Rd3 Bbe5 Nd6 Bd4 Qb8 Kf6 Ne5 Bh6 Qc8 Bg5 Qf8+
B5Bq/1b3R1q/Q1n1k2N/Q3n1b1/3bK1bN/3RB2Q/2qprQ1R/1r2R2r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 d5 b4 e5 g4 a5 c4 h5 g5 h3 g6+ Kf6 b6 a4 c5 h4 b7 h2 b5 h3 g7 a3 c6 d3 c7 d2 b6 a2 Bg2 d4 Ke4 d3 f4 Rh5 Qg4 d1Q Nd2 Ba3 Ne2 Bd6 Ng3 Rh8 Nf3 Rh6 Nh4 Rh5 Be3 Nh6 g8B Qc2 Rae1 Nc6 b8R a1B b7 Ra2 Qf3 Be6 c8Q Nf7 Qc7 Be7 Qa5 Qe8 Rd8 Bd4 b8Q Rb2 Qe2 Rb1 Qc8 d2+ Qd3 Qf8 Qca6 Qh6 Rd5 Qh8 Rd8 Bc8 Rd5 Bd8 Bf3 Ke7 f6+ Ke6 Ngf5 Bd7 Nh6 Be7 Rhg1 h1B Rg2 h2 Rf2 Bg2 Rfe2 h1Q Rf2 Bh3 Rh2 Bc8 Rd8 Bb7 Rd7 Qc3 Qf1 Bg4 Qh3 Bdc5 Rd8 Qc2+ Rd3 Bd4 f5+ Kd7 Kd5 e4 Bg2 Nfe5 f7 Bd8 f8R Bg5 f6 Qh7 f7 Qh8 Bg1 e3 Ke4 e2 Be3 Kd6 Re8 Kd7 f8Q Qh7+ Qf5+ Kd6 Rf1 e1R Rf8 Qh8 Qf2 Re2 Rf7 Ke6 Re1 Qf1 Qg1 Qff6 Qf2 Qfg7 Bf3 Qgh7+ Ng6 Rd1 Qhg2 Bc8 Rh3 Bh4 Kf4 Rb1 Be4 Bd8 Rhh1 Rh2 Nh4 Bf6 Qh3 Bd8 Rhg1 Rh1 Rg2 Bf6 Rh2 Bd8 Q6b5 Na7 Ba8 Nac6 Qaa6 Bb7 Qba5 Q7g7 Ke4 Bf6 Qff3 Bg5 Qf2 Qgh7+
2r4q/QB6/1BnKNQb1/R1Q1nq2/n1n4R/N1kN1pbr/2N3Q1/1R1r1q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 b7 c2 d6 a4 Qd5 h2 Na3 h3 Ba6 f1Q Rb1 f4 Nf3 Qd1 Be3 c1N Ne1 f3 Qc5+ Kb3 Nd3 Ne7 g8Q+ Nd5 Qg2 Qa5 d8N Nb6 d7 Qf1 Ne6 Nc4+ Kd5 Be7 d8Q Bh4 e5 Bg3 Qf6 Nc6 b8Q+ Qb5 Nc2 a3 Bb7 a2 Qa7 a1N Na3 Bd7 Bf2 Rac8 Nd4+ Ka2 b4 Be8 e6 Bg6 e7 Nab3 e8N Qa5 b5 Rh5+ Ne5 Nd3 b6 Qb5 Ra1+ Kb2 Ndc2 Kc3 Ng7 Rh7 Ne6 Rh4 Ng4+ Nde5 Be3 Rh6 Nf2 Rh7 Nd3 Rh5 Rg1 h1Q Bf2 h2 Be3 Qe2 Rgb1 Rh3 Bf2 Nbd4 Rb4 Qef1 Ra4 Nb3 Rb1 Nbd4 Ra5 Ne2 Be3 Qc1 Qf7 Rh5 Qf5 Nd7 Ba6 Qcd1 Bd4+ Kd2 b7 Nb2 b8R Rh7 Bf2 Rhh8 Qe5 Nc3+ Kd6 Nca4 Qd5 Rh5 Ned4 Kc3 Bg1 Qc1 Rb6 Qh6 Qf4 Rh3 Ne6 Qh8 Be3 Qc1 Bb7 h1R Qh5 Qg5 Rb4 Qg4 Qb5 Nde5 Qf6 Qf5 Rh4 Qd1 Bb6 Nc4+ Kd5 Qe2 Qc5 Rd1 Qb5 Ne3+ Kd6 Qf1 Qc5+ Nc4+
1bRnq1b1/3N4/1K1BRRBk/1q1Qq1n1/rrN4r/5p2/b2NQ3/3bNBR1 w - - 0 1 illegal: No possible last move
2B2Bk1/2n2brR/q1Rn1b1b/3N1QbQ/1Rr1NB1B/Q2p2q1/1Kq5/2n4R w - - 0 1 illegal: No possible last move
3bqK2/2Bb1RQ1/nr3rQ1/kB1Q4/q3Br2/b1pB1NqN/4nR2/4Rb1Q w - - 0 1 illegal: No possible last move
n1b2k2/4N3/R1B1rBK1/1n1bB2r/R4q2/pq1B1R1N/QRNq2Q1/5nbn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 g4 a4 b4 f3 d4 h3 g5 f2 g6 c4 g7 f6 b6 c3 b7 h2 d6 h4 d7+ Kf7 Kf5 c2 e4 h3 d5 Bc5 b5 Bd4 d6 Qf8 b6 Be5 Bd3 f1N Qf3 Nc6 b8R Bc3 b7 Rh5+ Bg5 c1Q e5 Ra6 Na3 Qd8 Qg2 Qe3 Nc2 Na7 Ra8 Rc6 b8B Nb5 Ra6 Bd4 Ra2 a3 Rb2 Qd2 Ra4 Qb6 Bc7 Ba6 d8R Bc8+ d7 Re6 Rf8+ Ke7 d8N Qb8 Ne2 Bg1 Kg6 Qb7 Rf7+ Ke8 Bh4 f5+ Bf6 f4 Nc6 f3 Nf4 f2 Ne7 Qd5 Bb8 Qb3 Bd6 Nc7 Ra6 Nh6 Ra4 Nf5 g8Q+ Kd7 Rf8 Nd4 Qf7 Ndb5 Qg8 Ba6 Ra8 Bc8 R8a6 Na8 Bc7 Rc6 Qc4 Ke8 e6 Kf8 Bce5 Ng3 Qcd5 f1Q Qc4 Be3 Rg1 h1B Qcd5 h2 Nh3 Qf4 Rf1 Bg1 Rf3 Nf1 Qc4 Qbc3 Qa2 Rb6 Nd5 Qb3 e7+ Kg8 e8B Re6 Ne7+ Kf8 Qe2 Bg2 Bc6 h1N Re3 Bf3 Qg2 Bd5 Rg3 Qbc3 Rf3 Qb3
1Bb1Rb1n/3R1Q2/k1q1NN1R/4q3/1R3rnp/r2r2B1/n1Qqn3/1QQ3KB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 Kc7 d4 Kb7 b6 f5 b5 h5 d6 c4 d7 f3 d5 c3 g5 h3 g6 f4 g7 c2 d6 a4 e5 h2 e6 a3 e7 a2 e8R Rh7 Ne2 Ra4 Nd4 Rh6 Nd2 Nc6 Ne4 Rf6 Bg2 Nge7 g8Q Ra3 Rb1 a1Q Rb4 Ne5 Qf7 N7g6 Ne6 Ng4+ Kf1 Rf5 Nf6 Nh8 Be3 c1N Bf2 Qe5 Qc2 Na2 Bg3 Qe4 Qc1 f2 Bf3 Qc6 Bd5 Qc7 d8Q Rd3 d7 Qe5 Kg2 f1R Qde7 Rfd1 Qec5 Ra3 Q5c2 Rdd3 Kf1 f3 d8R+ Be7 Be4 f2 Kg2 f1N Rd7+ Qc7 Bf3 Rf4 Bd5 Bf8 Be4 Ka8 b7+ Ka7 b6+ Ka6 b8Q Qe5 b7 Qcd5 Qbc7 Qc6 b8B Qcc3 Q2b1 Qd2+ Bf2 Ng3 Q7c2 Ne2 Bg3 Nf2 Rg1 h1Q+ Kf1 Qh2 Bh1 h4 Rg2 Ng4+ Rf2 Nec3 Rf3 Qhe2+ Kg1 Q2e4 Re3 Qc6 Re1 Qed6 Re5 Qdc7 Rh5 Qe5 Rh6 Ne2#
3Br1B1/R5nQ/BKbq1rqb/Qn3k1q/b1pQ3n/BQ1R1N1N/N7/n7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 Ke6 b6 h3 e5 h2 d7 f3 Ke3 f2 b7 h4 g5 h3 g6 a4 g7 a3 b5 a2 b6 Ra4 Ba3 Na6 b8N Nf6 b7 Nh5 Nc3 Nc7 Nc6 Ra6 b8Q f4+ Kd3 f3 Kc4 Rg8 d5+ Kf5 d6 Nb5 e6 Qe7 d8B Bd7 Be2 f1N Ne5 f2 Nef3 Nfg3 Qd4 f1Q Kd5 Be8 d7 Qb1 Qb7 Qf6 e7 Qd6+ Kc4 Rh8 g8B Ng7 Bf1 Qe4 Rd1 a1N Rd3 Qg4 Na2 Qgg6 Qa7 Rb6 Qa4 Ra6 Qb3 Rc6 Ne2 Rb6 Nf4 Rc6 Rg1 h1Q Be2 h2 Nh3 Qb8 Re1 Rf6 Bf1 Qf4 Re6 Qb8 Ra6 Qd6 Be2 Qd1 Ra5 h1B Ra7 N3h5 Bf1 Nf4 Be2 Ng2 Bf1 Qf4 Be2 Nh4 Kd5 Ne6 Kc6 Bh6 Kb6 Qfg5 Bf1 Q5h5 Be2 Bf7 e8Q Ng7+ Kb7 Qd2 Qe7 Be8 Bf1 Ne6 Qh7 Ng7 Bc7 Qf4 d8Q Qd6 Qa8 Bd7 Bd8 Bc6+ Kb6 Bg2 Bf7 Re8 Bg8 Bh1 Rb7 Bg2 Qa5 Bh1 Nd2 Bhf3 Ra7 Bd1 Nf3 Qe5 Qbb4 Ba4 Qb3 Qd6 Rd1 Nc3 Ba6 Nb5 Rd3 c4
2R5/kn6/qrRrqNB1/1bBNn3/1p2B3/K2nRQ1n/bQ1bBN2/3q1N2 w - - 0 1 illegal: No possible last move, all moves rejected
N4Nbr/2b2qb1/bn1R2r1/1pq1n3/1qN1R1B1/B2Q4/Q4BkB/RNrK4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 Kd6 g4 c5 f4 h5 g5 e5 g6 b5 a5 e4 g7 c4 f6 h3 f5 h4 a6 h2 a7 c3 f7 c2 f6 b3 Qd3 b2 Qb3 e3 Qd3 h3 Ne2 Qe7 Na3 b1Q Nc3 Nh6 g8Q Nd7 Be2 Qb4 Bg4 e2 Be3 Ba6 Bf2 Bg7 f8N Nb6 f7 c1R+ Kd2 Qc5 Re1 h1Q Ncb1 Re8 a8N h2 Be3 Qee4 Bf2 Re6 Nc4+ Ke7 d6+ Kf6 d7 Kg5 d8R Kf4 d5 Rg6 d6 Qhf3 d7 h1B Bd4 Kg3 Bf2+ Kg2 Rd1 Nd5 Re8 Nb6 d8B Qff5 Re6 Qef4+ Re3 e1B+ Ke2 Q5e4 Bc7 Ba5 Bb8 Qed5 Re4 Qb4 Bd6 Qdc5 Rd2 Qf6 Bh2 Qfe7 Ne6 Qb7 f8B Nf7 Bfd6 Ne5 Nf8 Nc8 Qgd5 Qf7 Be7 Bc7 Qe6 Bb7 Qa6 Nb6 Qa2 Rc2 Kd1 Ba6 Qdb3 Rc3 Rd6 Rc2 Qd3 Rc3 Bg5 Rc2 Bc1 Rc3 Ba3 Rc1+ Ke2 Qd7 Bf3+ Kh3 Rf4 Bg2 Qd4 Qe8 Bh5 Bc6 Qd3+ Kg2 Bg4 Bd5 Rd4 Bg8 Re4 Rc3 Ke1 Qf7 Kd1 Rc1+
1q3rnr/1qqNN2n/kB4rb/p2B1B1B/1Q1Kr3/5b2/5NR1/R1R2NQb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 h5 d4 a5 e4 c5 g4 Kc7 b6+ Kb7 e5 f5 g5 f3 Ke3 h3 g6 f2 e6 h2 g7 c4 e7 c3 e8B h4 b5 h3 d6 c2 d7 Nc6 d5 Nge7 g8B Ra7 d6 Bg7 Bd3 f1R Nd2 Nb8 Bh5 Qf8 d8R Ra6 d7 Rf4 Re8 Bh6 d8N+ Ka8 b7+ Ka7 Bgc4 Nd7 b8N Ng8 Ndc6+ Kb7 b6 Ndf6 Rd8 Nh7 Ne7 Bd7 Ba3 c1Q Bc5 Bc6 Rd5 Qd8 Nd7 Qb2 Rd6 Qc7 Rg6 Qb1 Be6 Rh4+ Rg5 f4+ Kd4 f3+ Be4 f2 Bc4 f1Q Rg2 Rg4 Bb3 Qf8 Be6 Ra8 Bf5 Ka6 b7 Rg6 b8Q Bd5 Qbb3 Rc8 Qa4 Qbb7 Bb6 Rb8 Rg4 Rc8 Qb4 Qfd8 Rg3 Qcb8 Rg5 Qdc7 Rg4 Rf8 Qf1+ Bc4 Bd5 Bd3 Qf2 Bc2 Rg2 Bd1 Ne4 Be2 Nf3 Bd1 Nfd2 Bg4 Rg3 Bf3 Rhc1 h1R Rgg1 h2 Rg2 Rf1 Qg1 h1B Nf2 Re1 Nf1 Re4+
3Q1n2/4N1K1/QR2nRp1/N2Qq1kB/2qr1bqr/2rR3b/BB2B2b/3b2Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 h4 d3 c4 a4 b4 f3 c5 a3 h6 d2 c6 a2 c7 d6 h7 f2 b6 Ra4 h5 Kg5 b7 d5+ Ke5 f5 e4 f4 b5 f3 h6 d4 b6 d3 Ne2 Kg6 Nf4+ Kg5 Nd5 Kg6 Be2 f1B Bb2 f2 Na3 Qh4 Rh3 Rc4 Ne7+ Kg5 Qa4 d1Q Qa6 d2 Rd3 Rd4 Nc4 Qb3 Na5 Bfh3 Rf1 Bce6 c8B Beg4 Be6 a1B Bd5 Qd1 Be6 Nf6 Ba2 Rg8 h8Q Qh5 Qh7 Rh8 Qg8 Nd5 h7 Nc7 Qgc4 Ne6 Qd5 Rg8 h8Q Rc4 Qc6 Rc3 Qd5 Qe8 Qh7 Rh8 Qg8 Rh4 Qa7 Na6 b8Q Nac5 b7 Qda4 Qc7 d1R b8R Qc4 Rb3 Qg6 Qa6 Nd7+ Kd6+ Qf5 e5 Bf3 Rb5 Qcg4 Qd8 Qff4 Rb6 Qfg3 Rh1 f1Q Rh2 Q3f4 Rf2 Qe1 Rf1 Qc4 Rf2 Nf6 Rf1 Nh7 Kd7 Qeg3 Ke8 Qh2 Kf7 Rd2 Re3 Rd4 Rd3 Qhg3 Bd1 Be2 Rf6 Bf3 Be2 Qh2 Nec6 Bd6 Ne7 Bb8 Rb4 Nhf8 Rb6 Nc5 e6+ Qe5 Nc8 Bc7 e7 Nce6 e8B Bd6 Ne7 Bb8 Bf1 Bd1 Be2 Bd6 Qh8 Bb8 Kg8 Bc7 Bh5 g6 Qh7 Qef5 Qf7 Bh2 Qg2 Qe5 Qg1 Ng7 Qfd5 Nge6 Ba3 Bb2 Kf7 Bc1 Bb2 Bcf4 Kg8 Nc5 Kg7 Nce6+
Q6N/1nbBn1Br/2p3bq/3kN2r/1B1q4/2nQb1Q1/2BN3q/b2KR1NR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 Kd6 b4 f5 e4 g5 h5 a5 h6 g3 b6 c6 b5 g2 b7 a4 b6 g4 h7 g3 Bc4 f3 Nh3 g1B Bh6 g2 Bg7 a3 Bb3 f4 Qd3 a2 Bc2 f2+ Kd1 f1N Nd2 Nd7 b8N f3 b7 Nc5 Nd7 f2 Ne5 Ra5 b8Q+ Qc7 Qa8 Nb7 Qg3 Ne7 Rb1 Bh2 Ng1 Bf5 Ra1 Bg6 Rc1 Rg8 h8N a1B Rb1 Qd7 Rc1 Qh3 Rb1 Qh6 Rc1 Kc7 d6+ Kb6 d5 Kc5 d7 Ne3+ Ke2 Rb5 d8Q Nd1 d6 Ra5 d7 Nc3+ Kd3 Kd6 Re1 f1Q+ Ne2 Qf6 Ng1 Na4 Ke2 Qf2+ Kd1 Qd4 Qdb8+ Kc5 d8B Ra7 Qd3 Nc3+ Kc1 Bf4 Ba5 Be3 Qc7 Ned5 Qcb8 Bd6 Qc7 Ne7 Qcb8 Na4 Kd1 Bc7 Bc3 Kd6 Bb4+ Ke6 Nec4 Ra5 e5 Kd5 e6 Rd8 Ne5 Rd7 Ne2 g1Q Qg8 Qg3 Ng1 Qgh2 Qgb8 Ng8 e7 Rb5 e8B Nc3+ Kc1 Rf7 Bd7 Ne7 Qg8 Na2+ Kd1 Ra5 Qgb8 Rb5 Bf8 Rh7 Bg7 Nc3+ Kc1 Qf2 Qd8 Ng8 Nc4 Qfh2 Qh4 Ne7 Qg3 Rc5 Ne5 Kd6 Nef3+ Qf4 Ba5 Rg5 Ne5 Kd5 Bb4 Rf5 Qe8 Rfh5 Qa8 Ne2+ Kd1 Qg5 Qa4 Qh6 Qa8 Nc3+
N2k1Bb1/4R3/1p1nRn2/7r/Q2b1NQB/2qqQ1q1/rBrb1KR1/2q2B1Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 h5 f4 e5 g4 c5 d4 b6 d6 b3 d5 h3 f6 h4 g5 e4 a5 e3 d7+ Kf7 a6 e2 f5 c4 a7 b2 d6 c3 Ra2 c2 Kf2 e1R Na3 b1Q Ne2 h2 Bb2 c1B Nf4 h3 Qa4 Rh6 Nb5 Na6 Nc7 Bg7 g6+ Kf8 f7 Rh5 Rg1 h1Q Rg2 Qg5 d8B h2 d7 Nf6 Ra3 Bb7 Re3 Nc5 Re7 Qd3 Re6 Rc8 a8Q Bd5 Qb7 Re3 Na8 Bd2 Qbc6 Ba2 Qce4 Reh3 Qe3 Nb7 Re7 Rc2 Re6 Bh8 Re7 Kg7 f8R+ Bf7 Rfe8 Nd6 Re6 Bg8 Be7 Qc3 d8Q R3h4 Qc8 Rh3 Qcc6 Qg3+ Ke2 Qg1 Bd8 h1Q R8e7+ Kf8 Qce4 Nfe8 f6 Rh2 f7 Nf6 Qb7 Ra5 Qbf3 Rhh5 Qg4 Qhh3 Qh4 Qf5 Qh1 Qe1+ Kf3 Qc1 Kg3 Qh2+ Kf2 Qfd3 Rc7 Nd5 Bh4 Bd4 Rce7 Nf6 Qd7 Ra2 Qa4 Kg7 f8B+ Kh8 g7+ Kh7 Nd5 Qg3+ Kg1 Kg6 Nf4+ Kf5 Re4 Be6 g8Q Bf7 Qg7 Bg8 R4e6 Nfe4 Rb7 Nc4 Rh6 Ncd6 Qg4+ Ke5 Ne6 Kd5 Nf4+ Kc5 Re6 Nf6 Qb4+ Kc6 Rbe7 Qh2+ Kf2 Qh3 Re8 Kd7 R8e7+ Kd8 Qa4 Qg3+
4rRR1/nr2b2B/pN1Qqnb1/2bN1b2/1N1BQ3/1r1n1N1k/1Bq1KB2/4R3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kf6 e4 Kg5 d4 c5 d6 h5 d7 f5 e5 h3 e6 Kh4 e7 h2 e8Q a6 b6 f3 b5 f4 d5 f2+ Ke2 c4 g5 c3 b7 c2 d6 Be7 g6 Nf6 g7 Qc7 d8N Ra7 g8R Nc6 b8N Bf5 d7 Rb7 b6 Na7 Be3 c1B Nc3 Bca3 Ndc6 Bac5 d8B Qc8 Qd6 Qe6 Bg2 f1R Be4 Rb1 Nd7 Rb3 Nf3+ Kh3 Raf1 h4 Nd5 Bg6 Rhg1 h1Q Bf2 Qh2 Rf8 Bf5 Rgg8 Qg2 Re1 Qh2 Nfe5 Bg6 Ncb4 f3+ Kd1 Qg2 Bd4 f2 Nf3 f1B Bc2 Bh5 Bh7 Bd3 Qg6 Qa2 Qe4 Bg6 Bb2 Bb1 Ke2 Bc2 Qee5 Bcf5 Qe4 Kg2 Bc7 h3 Bd8 h2 Bc7 Rb8 b7 h1N N7b6 Kh3 Bd8 Nf2 Bc7 Re8 b8B Nc6 Ba7 Nd3 Qf4 Rb8 Be5 Rb7 Bd4 Qb1 Bb8 Na7 Bf2 Qa1 B8e5 Qa2 Bed4 Qb1 Qd6 Qa2 Rg7 Qa4 Rff7 Rf8 Rg8 Re8 Rff8 Qa2 Nc2 Qb1 Ncb4 Qc2+
2b2N2/1n5p/2RR2Nk/1Q1NQ1q1/1K1BnQrr/2R1b2q/rQ3n2/1Nb1n2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 c5 Kd2 a5 Kc3 f5 b4 Kf7 g4 Kg7 e4 h3 g5 a4 b6 h2 b7 c4 e5 f3 d6 f2 e6 f4 e7 a3 e8Q a2 d7 f3 g6 Qg5 d8R Qc5 b5 Qf5 d5 Qg5 d6 Qf4 d7 Qf5 b6 Ne7 Be3 Ra6 Qd6 Nec6 Bd4+ Kh6 Ne2 Qg5 Bg2 f1Q Qde5 f2 g7 Rg8 Nf4 Na5 Ng6 Bc5 Bc6 Qfg2 Rc1 h1N Bf3 Nbc6 b8Q f1N b7 Nd2 Qbd6 Bb6 b8Q Qh3 Qf4 Ba7 Qb2 Nb4 Qde5 Nf2 Rc2 Nbd3 Bh1 Ne1+ Kb4 Nde4 Rc3 Nb7 Qb5 Ng2 Qee5 Ra5 Nd2 Ne1 Rac1 a1R Nb1 R5a2 R1c2 Rf8 g8N+ Kh5 Qe3 Rf4 N8e7 Rh4 Q3f4 Kh6 Nd5 Rg4 Re8 Bb6 d8N Rh4 Re6 Ba7 Ra3 c3 Rd6 Bb6 Rc1 c2 Ne6 Rg4 Rc3 Ra4+ Kb3 R1a2 Nef8 Ba7 Rd1 c1B Rc6 R4a3+ Kb4 Rh4 Rc2 Rg3 Rd3 Rgg4 Rd6 Ra5 Rcc6 Ra2 Rdc3 Ra6 Bb6 Ra3 Bc7 Bae3 Bb6 Ra7 Bd4 Ra2
1Q2R1rQ/1b1p4/r3B2N/n2q1K2/4Qb2/nQB3Nr/1R1qbk2/Rq3rRB w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 h5 f4 a5 b4 e5 c4 a4 g4 a3 g5+ Ke7 f6+ Ke6 c5 h3 f7 h2 g6 d3 f5+ Kf6 g7 h4 b6 a2 c6 d2 b5 Kg5 f6 h3 c7 Kh4 b7 Kg3 b6 Nc6 b8Q Nd4 b7 Nc2 Na3 Bd6 f8R Ra6 f7 Kf2 Kf5 e4 Bg2 e3 Ne2 Bf4 Nc4 Na3 Ng3 e2 Rg1 e1Q Nd6 h1R Re8 h2 Qb3 d1B f8Q Be2 Nf7 Qd2 Qfb4 Qh4 Bb2 Qh5+ Ng5 Qf3 Nf7 Qfd5+ Be5 Rh3 Qe4 Ra8 Nh6 Ne7+ Kf6 Nc6 g8B Na5 Kf5 Ra6 Bf3 Rg6 Be6 Rg8 Bg2 Q5d3 Bc3 Qb1 Rd1 Rf1 Bh1 Qbc2 Rdb1 Qcd3 Rb2 Q3c2 Qa8 Qb1 b8Q Bca6 c8R Bb7 Bf3 h1Q Rcd8 Qh2 Bh1 Qg2 Rc8 Rh8 Rg8 Qf3 Rg6 Rg8 Re8 Qg2 Nh5 Qf3 Rg1 Qfd3 Ng3 Qd4 Qe5 Qd5 Qb8 N5c4 Bb4 Nc2 Bc3 Qbe1 Rc1 a1R Nh5 Ra6 Ng3 N2a3 Rd1 Na5 Ra1 Qc6 Qg7 Qb1 Qh8 Qcd5+
q1NKQ2b/1rp1Q1nb/2n2B1k/2q3qb/3B1b2/1R1R1R2/2QN1BB1/5Qrn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 Kf7 d4 Kg6 b4 h3 g4 a4 e4 f3 d6 f4 d5 h2 d7 h4 Ke6 f2 d6 a3 e5 h3 g5 f3 b6 a2 b7 Bh6 b5 Ra7 b6 Bf8 Na3 Ra5 Bg2 f1N Nb5 f2 Na7 Rh5 Qc2+ Kg7 g6 Nf6 Nf3 Rg5 Bb2 Nc6 b8B Kh6 g7 Ne8 g8Q Bg7 b7 Bf6 Qf7 Ra3 Bd4 Rb3 Rd1 a1B Rd3 Ng3 Nd2 Bh8 Rf1 h1B Qf3 h2 Kf7 Rb2 e6 Rg4 e7 Ng7 e8Q Qg5 d8Q Bf5 d7 Bh7 Qde7 Rb3 d8B Bc3 Bb6 Be5 Nc8 Bf4 B8a7 Rb5 b8R Rb1 Be3 Rb7 Bad4 Qc5 Ra1 f1Q Raa3 Qc1 Qf1 Qg5 Rac3 Qa3 Bf2 Qac5 Bh3 Bf3 Bg2 h1Q Kf8 Ra7 Rbb3 Rb7 Kf7 N7f5 Ke6 Ng7+ Kd7 Bd1 Bh3 Qe4 Bg2 Nh1 Rf3 Be2 Rcd3 Rg3 Qe5 Bd1 Bf6 Be2 Q5e7 Rg4 Bh3 Rg1 Bg2 Bd1 Rh3+ Bh5 Rhf3 Nb4 Kd8 Qec6 Bc3 Qa6 Bb2 Qa8 Bbd4 Nc6+
Q2N1R1B/Bqp1r1r1/Q3Rb2/K1Bk4/QRbq1Rn1/6bn/1N2B3/1r3qb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 f5 Kb4 g5 e4 g3 h4 g4 b6 f3 e5+ Kd7+ d6 Kc6 b7 f2 e6 g2 d5+ Kb6 h5 g3 e7 a6 e8R f4 h6 f3 h7 Bg7 d7 Bf6 d6 Kc6 Ra4 Bh4 Na3 Ne7 Rf8 Ng6 Ne2 g1B Ka5 g2 b4 Nf4 Nd4+ Kd5 b5 Bg3 b6 Rg8 h8B Rg7 Nc4 Nh3 Be2 f1R Ba3 f2 Bc5 Qh4 d8Q Nd7 b8B Qe4 b7 Nf6 d7 Ng4 Qa1 Rb1 Nc6 f1Q Qh4 Bd4 Rb4 g1B Bba7 Bf6 d8Q+ Bd7 Qb8 Be6 Nb2 Bg8 Nd8 Re7 Ka4 a5 Qh6 Qeg2 Rf4 Rg7 Kb5 a4 Ka5 a3 Qc8 a2 b8R Qe4 Rb4 Rb8 Qh4 Rb6 Rh2 Re6 Qa6 Ree7 Rhf2 Qh1 R2f3 Bf7 Re3 Qhf3 Re6 Qb3 Rbe4 Qb7 Ra4 Bg6 Rab4 Bd3 Qh7 Bb5 Qc2 Bc4 Qa4 Rd1 Qb1 a1Q Qba2 Rb1 Bab6 Nh6 Qa8 Ng4 Ba7 Re1 Q2a3 Qd1 Qa2 Qd4 Q2a3 Rb1 Qd3 Ba2 Qa6 Bc4
2RNn2B/kN2Kr1b/2Q1QnBb/1r1rR3/n4B2/1qB5/Q1Q1p1R1/r5nn w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 Kc7 g4 Kb7 d4 h5 f4 a4 b4 h3 f5 c4 g5 a3 d6 c3 d5 h2 d7 h4 Ke6 c2 g6 e3 g7 h3 f6 a2 f7 e2 d6 e1N b6 Qc7 b5 Ng2 Nc3 Ne3 Ne4 Rh4 Bb2 c1R Nf3 Qc3 Nd4 Ra6 Bd3 Ra3 Nc6 Nd5 Re1 h1N Nc5+ Ka8 Nd8 h2 b7+ Ka7 Re5 Rb4 Bg6 Na6 b8R Ndf6 Ncb7 Ne8 Qc2 Ngf6 g8Q Bh6 f8Q Nf2 Qff7 h1N Rb1 Qf3 Bc3 a1R Rb2 Ra5 Ra2 Nh3 Rb2 Nd5 Qff5 Re1 Kf7 Qd3 Qe6 Ndf6 Ra2 Nc5 b6+ Ka6 Rb2 Rbb5 Qa2 e6 Ke7 Ng1 Qf7 Ng4 Qf3 Ngf6 Qc6 Re2 Nf7 Qh3 d8B Rf2 d7 Na4 Bc7 Rd5 d8Q Rab5 Qdd6 Bd7 Rc8 Qf3 Rf5 e5 Nfd8 e4 Re5 Bf5 Qe6 e3 Bd6 Qg3 Bc5 Rff1 B5d4 Qh3 Qd3 Be4 Rg2 e2 Qdc2 Rf3 Bh5 Bh7 Bg6 Rf5 Re3 Bg7 Be1 Bh6 Na5 Ne4 b7+ Rb6 b8B Rf8 Bh8 N4f6 Bf4 Ka7 Nab7 Rbb5 Re5 Qb3 Bc3 Rf7+
NNQ2Q2/b1B1Rr1Q/1B1Rr1n1/bnN3kN/pr2b3/2r1q1b1/7K/2Qb3B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 Kg2 Kf6 e4 c5 b4 a5 d4 g5 h4 a4 h5 c4 d6 g3 h6 g4 e5+ Kg5 d7 f5 d5 c3 b6 c2 h7 Ra7 b7 Qe7 d8B Ra8 b5 Ra6 d6 Nc6 b8Q Bb7 Be3 c1R b6 Rc3 Ne2 Nd4+ Kg1 g2 d7 Bg7 e6 Be5 Nd2 Be4 b7 Nb5 Beb6 f3 Bdc7 f4 d8Q f2+ Kh2 f3+ Ng3 Bf4 Bc4 f1B Qf8 f2 Qbc8 Be2 b8N f1R Qc1 Bd1 Nb3 Qa3 Bd3 Ne7 Nc5 Ng6 e7 Bd2 e8N Rf7 Nh5 g1B+ Kg3 Rg8 h8Q Bf2+ Kh2 Bh4 Re1 g3+ Kh3 g2 Qh7 Rgg7 Kh2 Rf4 Be2 Rgf7 Bf3 Qb3 Re3 Bf2 Rd3 Qa3 Rd6 g1B+ Kh3 Bg3 Bh1 Bef3 Ra2 Rb4 Rc2 Be4 Rb2 Bdf4 Re2 Bd2 Re1 Bc6 Re7 Be4 Bd8 Bge3 Nc7 Bef2 Na8 Qb3 Bbc7 Rb6 Rdd7 Re6 Rd6 Bfe3 Nb7 Ba7 Nc5 Qd5 Bb6 Qd4 Bdc7 Qe3 Qa6 Ra3 Bf3 Rbb3 Bh1 Ba5 Qb7 Rb4 Qbc8 Bf2+ Kh2 Rc3 Qd2 Be1 Qc1 Bg3+
3K1Rq1/2BR1B2/1B1Q2N1/3BNp1n/R1qb4/Q3n2k/1Q1rnr2/nQ1bn2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 b4 h5 d4 a5 b6 f5 b5 c5 d6 a4 b7 a3 d7 h3 Ke6 a2 e5 c4 b6 c3 d5 h4 d6 c2 Qd3 h2 Nh3 f2 Bf4 c1N Qa3 Ra6 Nd2 Ra7 Bc4 f1N Nf3 Nf6 Bd5 Ne3 Rd1 Na6 b8Q h1N b7 Kh5 g4+ Kg6 g5 Kh5 g6 Kg4 g7 Nb4 g8R+ Bg7 Rf8 Qc7 Ke7 Nh5 e6 Qc4 d8B Nbc2 d7 Ne2 Bb6 Ne1 d8Q Bd7 Bfc7 Bd4 Nf4 h3 Ng6 h2 Nfe5+ Kh3 Rd3 Bc6 Qdd6 Ba4 Kd8 Bd1 e7 Rh7 e8B Rd7+ Kc8 Ra5 Bef7 Rb5 Rd2 Rb2 Rd3 Re7 Kd8 Rd2 Qc8 Re6 b8Q Re7 Qcb7 Re6 Rb1 a1N Rb4 Re7 Ra4 Re6 Nc6 Re4 Nce5 Rf4 Bc5 Rf2 Qbb2 N1g3 Q8b5 h1Q B5b6 Qg1 Qb1 Nh1 Q5b2 Qg4 Be4 Nhf4 Qdb4 Rf3 Ne7 Bc3 Rd7 Bd4 Qd6 Rf2 Bed5 Qg8 N7g6 Nh5
r4Q2/1kbR1n2/r2Qp3/Rnr5/qQN2rBB/1Q6/nnB2n1N/1bK3RR w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 f4 c5 d4 Kc7 Kd2 h5 b4 a5 f5 h3 g5 h2 b6+ Kb7 d6 e3+ Kc2 h4 g6 h3 g7 c4 f6 c3 d5 a4 b5 e2 d7 a3 d6 a2 f7 Na6 Bh6 e1N+ Kc1 c2 Nd2 Qe8 d8R Nc7 Be2 Bf5 d7 e6 Nc4 Bd6 Bg5 Nh6 f8Q Nf7 g8B Rh4 Bh7 Rf4 Nf3 Bg6 Rb1 a1R Bh4 R1a6 Qd3 Be5 Qdd6 Be4 Rg1 h1N Nh2 Nf2 Bg4 Nd1 Ra1 Nc3 Ra5 Bf5 Rc8 Bg6 d8R Qc6 Rd7 Nd3+ Kd2 Nb2 Kc1 Qc5 Rcd8 Qa3 Qb4 Qb3 Rdd1 Qa4 R8d7 Bf6 Rh1 Bd8 Rdg1 Bf5 Kd2 c1R Bg6 Bb1 Bc2 Re1 Qb3 Re5 Kc1 Rc5 Qb4 Kb8 b7 Ne8 Rd4 Ned6 Rd5 Kc7 b6+ Kc6 b8Q Bc7 b7 Ndb5 Nf3 h2 Rd7 Bd8 Qe5 Bb6 b8Q Bc7 Qbd8 Kb7 Qe3 Ne4 Qeb3 Nc3 Qd6 Ne5 Rd1 Nf7 Rhg1 h1N Nh2 Nf2 Q8f8 Ba2 Rh1 Bb1 Rdg1 Na2+
1nb4b/KBB1n2N/Rp6/nNr1Q3/kb3Rn1/1q4N1/N5Qb/n2rQ1RQ w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 c5 Kc4 h5 Kb5 e5 g4 c4 d4 c3 f4 h3 a4 h2 a5 c2 a6 e4 f6 b3 d6 h4 g5 h3 f7 e3 d5 e2 g6 e1B g7 b6 a7 b2 f5 Nc6 f6 Nb4 Ne2 Bg3 Qe1 Nc6 Na3 b1N Rg1 h1N Bg2 h2 Bf4 Nge7 g8Q c1B Be4 Rb8 a8Q Na5 Qh7 Rb7 Ka6 Bb2 Nb5 Nf2 Bh1 Rb8+ Ka7 Nd2 Be5 Bf4 Ng3 Ndb3 Qhe4 Bd4 Qg2 Rh5 Ra3 Ng4 Ra1 Bg7 f8R Bh8 f7 Nf6 Ra2 Na1 Ra3 Nc4 Ra6 Bd2 Bf4 Bb4 Qe5 Qe8 Qe1 Be5 Qc6+ Kd8 d7 Na5 Qcc3 Bc7 Qce5 Rf5 Rg8 Qf8 Rg4 Qg8 f8N Qe6 Nh7 Bcd6 Nd4 Kc7 d8N Nd7 N8c6 Rh5 Nb3 Qg8 Nc1 Rg5 Na2 Rb7+ Ka8 Nb8 Nd4 Kd7 Rh4 Rc7 Rg4 Rc1 Ka7 Rd1 Nb5 Bc7 d6 Qb3 Qh3 Rh5 Bb7 h1N Qg2 Nf2 Rh4 Ng4 Qh1 Kd8 d7 Bcd6 Q5e2 Rc5 Qeg2 Nf5 Be5 Ke7 d8Q+ Ke6 Qb2 Ne7 Qg8+ Kd7 Qgd5 Ne3 Rc4 Ng4 Qdg2 Bc7 Bf4 Bd6 Qbe5 Bc7 Bf3 Bd6 Re4 Kc6 Qd5+ Kd7 Nd4 Rb5 Nf1 Bc3 Qdh5 Bdb4 Bc7 Rc5 Qg5 Bd2 Qgh5 Bf4 Qe5 Bg3 Rf4 Bh2 Ng3 Qd5 Ne6 Kc6 Be4 Kb5 Nd4+ Ka4 Nb5 Qc4 Bb7 Qb3
4bkBn/2nnNbbp/2Kn2R1/q2R2Q1/N2Q4/Q1b3r1/1Nr2B2/NB3b1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 f5 d4 a5 g4 a4 e4 c4 b4 a3 g5 a2 d6 h3 g6 c3 g7 h2 d5 c2 e5 Ra5 d7+ Kf7 e6+ Ke7 b6 Nf6 g8B Rb5 b7 Ng4 d6+ Kf6 e7 Kg7 e8N+ Kh6 Na3 Qa5 d8Q Rd5 b5 Rd3+ Be3 c1N d7 Nf6 b6 Ne2 Nd6 Kg7 Nc2 Ne8 Nc4 Nd6 Nb2 Rd2 Rc1 a1B Qh4 Rd3 d8Q Nd7 b8N Ba6 b7 Bc4 Nc6 Bf7 b8Q Rd2 Ne1 Rc2 Qb3 Be8 Ne7 Bf7 Na4 Bc3 Nh3 Be8 Qa3 Bf7 Kf2 f3 Nf4 Be8 Nfd3 Nf4+ Be2 Ng6 Rg1 h1B Ndb2 f4 Qg5 Bg2 Ra1 Bh3 Qdd5 Be6 Rd1 B6f7 Qe4 Nb5 Rd5 Nc7 Kf1 f2 Kg2 f1N Kf3 Ng3 Bf2 Nf5 Bd3 Nd6 Rg2 Rd2 Nc2 Re2 Na1 Rc2 Kg4 f3 Kg3 Re2 Bb1 Rc2 Qeh4 Nc4 Qh1 Nd6 Bg1 f2 Kf3 f1B Bf2 Ne6 Qb6 Nc7 Nc8 Be7 Qd4+ Bf6 Ne7 Kf8 Rg4 Nb7 Ke4 Be5 Rh4 Bg7 Rh6 Nd6+ Ke3 Qb5 Qgg1 Qc6 Qd1 Be6 Bf7 Rg8 Qg3 Bgf6 Qf4 Rg7 Bg8 Qa6 Qe5 Bd2+ Kd4 Nh8 Qdh5 Rg2 Qg5 Bg7 Rg6 B6f7 Qef6 Rg3 Qfe5 Nf6 Qef4 Bc3+ Kc5 Qa8 Qd4 Qa6 Nb6 Nd7+ Kc6 Qa7 N6a4 Qa5
3nRbqB/3pnb1n/Q2K4/NQ5b/R1BBRbN1/N2Rr1r1/4k3/2nn3B w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 g4 h5 c4 h3 f4 d3 b6 h2 g5 a4 b7 a3 f6 d2 f7 Ke3 b5 h4 f5 h3 f6 a2 b6 Ra4 g6 Ra6 g7 Rh6 Nf3 Ra3 Qa4 Kf2 Qb5 d1N Bg2 Rb3 Be3+ Ke2 Na3 Rg6 Bd4 Re3 Ne5 Nc6 b8R Rgg3 Ng4 Ba6 b7 e5+ Kd5 Nge7+ Kd6 e4 g8B Qc8 Rg1 h1B c5+ Rd3 Rf1 h2 Rf3 Nd8 c6 e3 Ra8 Qb8+ c7 Qc8 Rb1 a1N b8N Nb3 Nc6 Nc1 Na5 Bb7 Rf4 Bd5 Rb3 Qb8 Be4 Bf3 Ra7 Qa8 c8Q h1N Qca6 Nhf2 Rc3 Ba2 Bb7 Bad5 Re4 Nh3 Rb3 Ng5 Bc6 Bh6 f8R Nh7 Re8 Bf8 Rc3 Ba2 Bc4 Bb3 f7 Ba2 Nh6 Bh5 Ng4 Bb3 Rf4 Qc8 Bh1 Qa8 Re4 Qd5+ Kc7 Qg5 Ra8 Qg8 Kd6 Nf6 Be6 Ke1 Rac8 e2 R8c4 Nh7 Ra4 Kf1 Bd5 e1B Be6 Bc4 Bd5 Rdf3 Rd3 Bd2 Bh8 Bg5 Bd4 Re3 Be6 Bg7 f8B Ke2 Bd5 B7h6 Bfg7 Bb3 Bh8 Bf8 Bc6 Be6 Bd5 Bef7 Bc4 Bf4+
2k2b1N/1rBnqKQQ/B2RRN2/B1n1b1r1/3b3n/B2p1r2/2b1rQRR/8 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 a5 Kg5 h5 Kg6 e5 g4 e4 b4 h3 f4 a4 c4 e3 c5 e2 g5 e1B b6 a3 c6+ Ke7 c7 Kd7 f6 d3 f5 d2 f7 a2 b5 h2 f6 d4 b7 h4 b6 h3 Ne2 Qe8 Nf4 Qe2 Qc2 d1N Nc3 Bg3 Ba3 Rh7 Ne4 Qd2 Ba6 Nc3 Rad1 a1B Qb1 Be7 f8Q Na4 f7 Nc5 Qg7 Nh6 f8Q Nf5 Kf7 Nh4 Ng6 Be5 Nh8 Rh5 g6 Ra7 Rhe1 h1R Re2 Bc3 Rh2 Re1 Qd3 Rg5 Nf6+ Kd6 Qe4 Bf5 c8R Nd7 Re8 Re2 b8B+ Rc7 Qb1 Bc2 b7 Qd3 Ba7 Kc6 b8B Rb7 Bc7 Bb2 Rf2 h2 Bab6 h1R Rh2 Rf1 Ba5 B7d6 Re6 Rf3 Qfg8 Bc3 Qb2 Qd2 Q8h7 d3 Rg1 Bcd4 Rgg2 Qc3 Qb4 Qb3 Qe1 Qb4 Qf2 Qb6 Bb8 Qd8 Bbc7 Rh3 Qgh6 Rf3 g7 Ra7 g8R Rb7 Ree8 Be7 Rg6 Bf8 Q6g7 Rb4 Bb5+ Kb7 Re6 Kc8 Ba6+ Rb7 Rd6 Rfe3 Ne4 Reg3 Rge6 Rf3+ Nf6 Qe7+
1Bk2N1B/2p2nn1/4bQ1r/3Q4/1rBN4/R2N1KB1/Q1b1N2r/n1nqb1Rb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 f5 g4 a5 e4 h5 b4 a4 g5 f3 e5 a3 d6 a2 b6 h3 b7 h2 e6+ Ke8 g6 f4 d5 h4 b5 h3 e7 Kd7 e8N Nh6 g7 Ra3 g8Q Ra4 b6 Rh7 Nc3 Nf5 Nce2 Nc6 b8B Rg7 b7 Ne5 Nd4 Nf7 Nge2 Rb4 Rg1 h1B Bb2 h2 Qc2 Rg3 Ng7 Be7 Qc4 Bh4 Nge6 Ng7 Ba7 Nf5 b8B Ng7 Rb1 a1N Qa2 Rg6+ Rg3 Rh6 Rc1 Bg2 Bc3 h1B Nf8+ Ke8 Bb6 Be6 d7+ Ke7 Bb2 Bgh3 Rc3 Bhf5 Ra3 Bc2 Qh8 Qc8 d8N Qd7 d6+ Ke8 Kg1 f2+ Kh2 f3 Rg1 Qa4 Nb7 Qd7 Nc5 Kd8 Nd3 Kc8 Bc1 Qa4 Bf4 Qb3 Bg3 Qd5 Bh3 f1R Bc5 Rc1 Bf1 f2 Bb6 Rd1 Bc5 Rd2 d7+ Kb7 d8Q Qf3 Qdd5+ Kc8 Nef4 Qe2 Bd6 Qd1 Be5 Re2 Ne1 Rd2 Bc4 Re2 Ned3 Rd2 Re1 f1N+ Kg1 Rf2 Nfe2 Nd2 Bf6 Ndb3 Bfe5 Ne8 Qf6 Nc1 Rf1 Ng7 Re1 Rf4 Rf1 Rg4 Kf2 Rg5 Rg1 Rgg6 Ke3 Rg4 Bf2 Rg2 Kf3 Bg5 Bfg3 Bd2 Qe7 Be1 Bf6 Ne8 Bh8 Ng7 Qf6 Rgh2+
3B1b1n/rbQq3B/1N3Q1r/BRq4r/rN1RKn2/RR2B3/4k2p/5bbQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 Kd4 b4 h5 d6 f5 g5 a5 b6 c5 g6 c4 b7 a4 d7 a3 b5 a2 g7 h3 e5 h4 e6 h2 b6 h3 e7 c3 e8R c2 Bd3 Bc5 Nc3 Nf6 g8Q Nd5 Qf7 Ra4 Re3 Nc6 b8R Bf8 b7 Nce7 Qg6 Qe8 d8B Rh5 Ba5 Qd7 Re5 Rh6 Qf6 Ng6 Qe1 Nh8 Nge2+ Kc5 Be4 Kc4 d4 Rh5 Be3 c1Q Rg1 h1R Rg4 Qa3 Qb1 Qc5 Nc1 h2 Nd3 Rd1 Kf2 f3 Nb4 f4 Bh7 Rg1 Rh4 Rg6 Qh1 Rgh6 Rf5 Nc7 Ncd5 Ne6 Nb6+ Kc3 Rd1 a1B Rh3 Bb2 Ra8 Bc1 b8Q Bb7 Qc7 Bb2 Ke1 f2+ Ke2 f1R Re5 Rg1 d5 Rg7 d6 f3+ Kf2 Bc1 Rd4 Nf4 Red5 Re7 Kg3 f2 Kf3 Rf7 Ke4 f1B Rf3 Bd2 Ra6 Be1 Ra7 Bf2 Ra8 Qc8 d7 Bg1 d8B Qd7 Bf2+ Kb2 Rb3+ Kc1 Ra6 Nd3 Ra7 Kd2 Be3+ Ke2 Ra6 Nf4 Ra8 Bc8 Re5 Qcd6 Rb5 Qc5 Ra6 Bb7+ Qcc6 Qh3 Qg5 Bc8 Qgf6 Ra7 Qc7 Ra2 Nd3 Rg6 Bad2 Rgh6 Raa4 Qd7 Ba5 Rd2 Ra1 Ra2 Nb4 Ra4 Raa3 Bb7+
kb2rNB1/2Q1B3/b7/1q1q1K2/qb1B3N/N2nR1R1/Qq1p1b2/N1Br1Qn1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 c4 Kb7 f4 e5 b4 h5+ Kf3 a5 g4 d3 b6 a4 b5 d2 g5 h3 g6 a3 g7 h2 f6 h4 f5 a2 Kg4 d4 f7 h3 c5 e4 Nf3 e3 Rg1 h1Q Nh4 e2 Rg3 e1B Na3 h2 Bc4 Bf2 Qf1 Nd7 f6 d1Q+ Kf5 d3 c6+ Kb8 b7 d2 Re3 Bb4 f8N Qe8 f7 Ngf6 g8Q Nh7 c7+ Ka7 b8N Ne5+ Nbd7 Qd5 Rb1 h1Q Rbb3 Ba6 c8Q a1B Nc5 Ng5 Qc7+ Qb7 Rg3 Nh3 Rbe3 Qa4 Nb3 Ng1 Bd5 Rc8 b6+ Ka8 Be6 Bd4 Na1 Qeb5 Bd5 Re8 Be6 Q7d5 b7+ Ka7 b8B+ Ka8 Ba7 Qhe4+ Kf6 Qb1 Bc5 Bdc3 Bd4 Qb2 Kf5 Rh7 Nfg6 Bd6 f8B Bcb4 Be7 Rh6 Nf8 Rh8 Qcc4 Bb8 Qh7 Rg8 Qa2 Rg4 Bg8 Re4 Rc3 Re1 Rce3 Rd1 Qf7 Qdc5 Q7c4 Qd5 Qc7 Nd3+
Q2qnn1N/RQrBb3/2Q5/1K1N1N1B/b1RQr3/Bkqbn3/2pBn3/6b1 w - - 0 1 illegal: No possible last move
bN3k2/Q1NKbB2/1nr4R/Q4Qp1/RqQBNnr1/Bq5N/b2q4/2qb4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 g5 d4 c4 e5 a4 d6 c3 h5 f3 Kg3 c2 e6 a3 h6 f2 b6 a2 e7 Ra6 b5 Qc7 h7 Qc6 b7 Nf6 b6 Qb5 d5 Qa4 Qd4 Qb3+ Nc3 Nbd7 b8N Bb7 Ba3 c1Q Qc4 Qd2 Rh6 Ba8 b7 Rc6 Nh3 Nb6 d7+ Kf7 e8N Be7 d8Q Kf8 d6 Nfd5 d7 Nf4 Bd3 f1B Qc8 Be2 d8Q Bd1 Ne4 Qbb4 Qdd5 Qb3 Qa5 Qdb4 Kf2 g3+ Ke3 g2 Kd4 g1Q+ Ke5 Qge1 Bf1 Qed2 Nc7+ Kg7 Be2 Rd8 h8B+ Kf8 Q8e6 Rdd6 Bh5 Rd4 Rb1 a1Q Bf7 Qac3 Ra1 Qcc1 Qf6 Ng2 Qg6 f4 Qf5 f3 Ra2 f2 Bf6 Bd6+ Ke6 f1B Be5 Bd3 Bh8 Bb1 Ra1 Nd5 Kd7 Ba2 Be5 Ngf4 Bf6 Rd3 Bd4 Rg3 Nba6 Be7 b8Q+ Bd8 Qa7 Rg4 Nb8 Be7 Bab2 Bb1 Ra4 Ba2 Ba3 Nb6+
rnB1RB1N/2K1n1bB/1QBNq1rr/4Rp1R/1Q2n3/1b1k4/q6n/N1R1r3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 c5 g4 a5 b6 h5 b5 a4 e4+ Kb4 b7 c4 g5 a3 b6 c3 d6 h3 d7 h2 d5 a2 g6 c2 g7 f3 d6 h4 Qd4+ Kb3 Ne2 h3 Ng3 f2 Na3 Rh6 Ba6 Rg6 Bh6 c1Q Nc2 Qe1 Rc1 f1R Na1+ Ka3 Qg1 Nf6 g8B Kb2 Bh7 Be7 Bf8 Qc7 d8N Rf2 Nf7 Qc2 d7 Kc3 d8R Be6 Rd5 Ng8 Nh8 Bf6+ Kd6 Ne7 e5 Bg7 Kc7 Rg2 Rb5 Rh6 Ne4+ Kd3+ Rc5+ Bc4 e6 Rgg6 Nd6 Qb2 Rb5 Bb3 Qc5 Qb1 Qb4 Qe4 Rhe1 h1N Re5+ Bc4 Re2 Ng3 Rh2 Nf1 Rh1 Nc8 e7 h2 e8B Ne7 Beb5 Qd5 Bd7 Qe6 Bab5 Qb2 Bbc6 Bb3 Bc8 Qd2 Rg1 h1N Rg5 Nhg3 Rh5 Nd7 b8R Ne4 b7 Nh2 Nc2 a1R Qb6 Rb1 Na1 Qa2 Qb4 Ra3 Ra8 Ra5 b8Q Ra3 Q8b6 Nb8 Rcc5 Re1 Rc1 Nd7 B8b7 Ra4 Re8 Ra8 Bc8 Nb8
B1b2KR1/1b1QR3/1N5q/B1pn1NQB/2r3Q1/bkn1n3/qn4b1/rR4RB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 c5 g4 f5 d4 h5 g5 a5 g6 h3 d6 h2 d5 h4 d7 f3 Ke6 f2 Kf7 a4 d6 a3 b6 h3 b7 a2 b5 f4 e4+ Kb4 b6 f3 g7 Rh7 e5 Qg5 d8Q Na6 b8R Qg2 d7 Qg4 e6 Qg2 e7 Nf6 e8B Rh4 g8B Qg5 b7 Nd5 Nd2 Bh6 Ne2 Rc4 Bg2 f1N Rg1 h1N Ng3 h2 Nf5 f2 Qg4 Nhg3 Bh1 Ne4 Rb1+ Ka4 Bb2 a1Q Bc3 Nfe3 Ba5 f1B Re1 Qf4 Qdg5 Qa2 d8Q+ Ka3 Qd6 Nab4 Qd7 Bg2 Re2 Nec3 Bh7 Ned1 Re7 Nd3 Bg6 Ra6 Bh5 N3b2 Ra8 Bg7 b8R N1e3 Rb6 Bd4 Kf8 Ra7 Rab8 Ra8 Rg6 Qd6 Rg8 Qb6 Nb1+ Kb3 Na3 Ra7 Qe6 Bf6 Bc6 Be5 Qd7 Bh8 Bb7 Qh6+ Qg7 Ra6 Ba8+ Rb4 Re5 Nba4 Rc1 Ncd1 Bc7 Qb1 Rb5 Ka2 Ra5 Kb3 Nc4 Qa1 Nb6 Rc4 Re7 Qb2 Bg3 Qa3 Kf7 Ra7 Q7g6 Bb2 Be1 Qa1 Bb4 Nac3 Q6g5 Qb1 Ra1 Ra2 Ng7 Ba3 Ba5 Nb2 Rg1 Qe1 Rd1 Ra1 Nf5 Qf1 Rd4 Qb1 Rdd1 Qa2 Rb1 Nf4 Qg7 Bgb7 Kf8 Nfd5 Be4 h1B Bf3 Bg2 Be4 Bf1 Bh1 Qg6 Qh6 Bg2 Qhg5 Qh6+
1BKN3Q/1Qn1q1q1/4Q1Qb/1bkBrR2/b3p3/1B1q2R1/1NNr1Np1/5n1n w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 Kd3 d5 h4 Kd7 c4 Kd6 b4 e5 f4 g5 h5 g3 c5+ Kd7 b6 Kc6 b5+ Kd7 b7 a4 c6+ Kd6 c7 g2 f6 g4 b6 g3 f5 a3 f7 a2 f6 Ra7 h6 Nd7 b8N Rb7 h7 Qe8 Nh3 g1N Nc6 g2 Qe2 Nb8 Nd8 Nc6 Nc3 Bg7 f8Q+ Qe7 f7 Nf3 Na4 Nb8 Nf2 Nh2 Nb2 Bh6 Qe8 Na6 f8N Be6 c8B Rd7 b7 Nf6 b8Q+ Kc5 Bf4 Nh5 Bb7 Ng3 Qg6 Nc7 Qe1 Rg8 h8Q Rd6 Bc6 Bd7 Qb7 Rg7 Be2 Nhf1 Rh3 Nh1 Bd1 Rh7 Rb1 a1Q Rg3 Rf7 Qe2 Rf5 Bb3 Rg5 Qg4 Rh5 Q4e6 e4+ Kc2 d3+ Kc3 d2 Re1 d1B Ree3 Qa7 Ref3 Qa1 Be5 Be8 Rf5 Rd7 Bf4 Na8 Bb8 Nc7 Nh7 Be2 Nf6 Bb5 N6g4 Qa7 Ne3 Ba4 Rf7 Re5 Rf5 Bb5 Nc2 Qg7 Ba4 d4+ Kb3 d3 Bd5 d2 Ka3 Ba6 Bab3 d1Q Ka4 Qd3 Ka5 Bb5+ Qba6 Ba4 Bb7 Qd1 Ba8 Nb5 Bc6 Rd3 Bcd5 Qae7 Qa8 Qe2 Ka6 Nc7+ Kb7 Beb5 Kc8 Rd2 Qb7 Qd3
1QR1nQ2/1RR4N/r1R2Nkn/3q2B1/4pbqp/Q1B1n2K/1r4BB/4rb1q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 Kf2 c5 d4 e5 g4 a5 Kg2 h5 b4 e3 b6 c4 d6 a4 g5 c3 d5 e4 b7 a3 b5 a2 b6 e2 d7 e1Q d6 c2 f5 Nc6 b8B Rh6 f6 Qc3 b7 Rh8 Nf3 Ra7 Bd2 c1R Qa4 Nd4 Qa3 h3+ Kg3 h2 g6+ Ke6 g7 Kf5 f7 h4+ Kh3 Qdc7 d8B Q3c4 d7 Q4c6 Bg2 Ne6 Ng5 Kg6 Nh7 Nh6 g8Q+ Ng7 Nc3 Qf4 Bg5 Bd6 Nd5 Qc4 Ndf6 Qd5 Rb1 a1N f8R Nc2 Rf7 Ne3 Rb6 Rb1 Rc1 Ra8 Rc4 Re1 Bc3 Ra5 Ra6 Rb5 Rb6 Rb2 Rcc6 Be5 Qd8 Rf8 Re7 Rf7 Qf8 Ne8 Bd6 Rg7 b8Q Ba6 d8R Bf1 Rdc8 Rf7 Re6 Ra7 Re7 Ra6 Rbb7 Qf5+ Ng4 Bg3 Rec7 Qf3 Ngf6 Qfd1 Bdb4 Bd6 Be5 h1Q+ Bh2 Bf4 Bc3 Qg4+
5bk1/QRQ1Rb2/N2n3n/RQ2K1q1/Qp2N3/N3r3/1rp4r/B1nBqRb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 b5 f4 c5 a4 c4 d4 h3 a5 h2 g5 h4 g6+ Kg7 f6+ Kh6 a6 c3 d6 h3 a7 b3 f7 Kg7 f5 b4 d7 b2 d5 Na6 d6 Rh6 f6+ Kh8 g7+ Kh7 Ra5 Qe7 d8R Nc7 d7 Nb5 Na3 b1R Ne2 Rb8 a8N Rb3 Re8 Rh5 d8Q Nh6 g8R Be6 Nc7 Rb2 Qa4 c2 Nc3 Ba2 Rhg1 h1N Be2 h2 Rf1 Rc8 Bd1 Nf2+ Ke3 h1Q Na6 e4 Kf4 e3 Qc7 e2 Rg7+ Kh8 Ne4 e1B Qa7 Qd8 Re7 Rh2 Ke5 Nd6 Be3 Bd2 Bd4 Rc3 Qb5 Re3 Qc7 Rbb3 Ba1 Rb2 Qa7 Nh3 Rb7 Ng1 Qa4 Ne2 Qb5 Be7 f8Q+ Bg8 f7 Nc1 Qfe8 Bf8 Qec6 Be1 Qc8 Bf2 Qc7 Bg1 Qa4 Qh4 Qb5 Qe1 Qa4 Qg2 Qb5 Be7 f8Q Qg5+ Qf5 Bc4 Qa4 Bf8 Rf7 Kg8 Re7 Qg4 Qfd7 Bf7 Qdb5 Qg5+
2N5/2Br3q/Bn2b1k1/r5b1/pqQNn1Qp/1RBn2N1/1bN1KBqR/5Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 e4 c5 b4 f5 g4 Kf7 b6 h5 d6 h3 d5 a4 d7 h2 b5 h4 g5 c4 e5 c3 g6+ Kg7 d6 f3 e6 c2 b7 f4 e7 f2+ Ke2 Nc6 e8N+ Kh6 b8Q Ra5 g7 Kg6 b6 Rah5 b7 Ra5 Ra3 Kh7 Bd2 c1B Bc3 Na7 Rb3 Bb2 Na3 Nf6 Nc2 Qb6 d8B Be6 d7 Qb4 Nd6 Be7 Bc7 Ne4 d8N Bg5 Qc8 Kg6 b8B Rh7 g8Q+ Rg7 Qa6 Nc8 Nc6 Nb6 Qgc8 Rf7 Ba7 Rd7 N6d4 f3+ Kd3 Nf6 Qc4 Ne4 Be2 f1Q Qf8 f2 Nc8 Qa3 Qf3 Qf8 Qg4 Qg2 Bf1 Qg7 Ne2 Qf8 Ng3 Qb4 Be2 f1Q Qa1 Qf6 Qf1 Qf7 Rg1 Qh3 Rg2 h1N Rh2 Qg8 Bf3 Qg7 Ke2 Nhf2 Bg2 Nd3 Bh1 Nec5 Bb7 Ne4 Ba6 Qh7 Nf3 Nd5 Bf2 Qg2 Nfd4 Nb6
Q1BK3Q/2n1qb2/4R3/1r1n1pR1/2Bb1N1n/p1RrbkBR/1QrQ1N2/3q4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 c5 b4 c4 g5 a4 b6 a3 g6 c3 b5 f3 b7 h3 g7 h4 b6 f6 Bf4+ Kd7 Kf5 c2 e4 c1B d6 Kc6+ d7 f2 Ke6 h2 d5+ Kc5 d6 f5 e5 h3 Ne2 Ra5 Qd2 Bb2 Bg3 Nc6 b8Q Nge7 g8B Rb5 b7 Kc4 Nbc3 Ng6 Rc1 Nb4 Qa8 Na6 b8Q Nh4 Nf4+ Kc5 Rg1 h1Q Bc4 f1N Nd1 h2 Rc3 Bh6 Nf2 Nc7+ Kf7 Qb7 e6 h1R e7 Ne3 e8R Rh2 Re6 Ned5 Rh1 Rg2 Rh3 Qa7 Qbb7 Qa4 Qbb8 Qd1 Qbb7 Qg5 d8Q Rh2 d7 Ba1 Rc1 Bd4 Rc3 Rg2 Qf6 Rh2 d8R Bd7 Qg7 Be8+ Kf8 Bf7 Rde8 Rh7 Rg6 Qf6 Re6 Bg5 Qh8 Rh6 Nh5 Bge3 Rg5 Qe5 Nf4 Qe4 Ra6 Rd6 Rb6 Be8 Be6 Bf7 Bc8 Rd7 Rh6 Qe6 Qa5 Kd6 Rf6 Ke5 Qba8 Rg2 Qb4 Rd6 Qbb2 Rd7 N2d3+ Ke4 Nf2+ Kf3 Rfg6 Qe5 Re6 Qf6 Nh1 Bb6 Qe1 Rc2 Qd2 Rd6 Qa6 Ne7 Nf2 Rd3 Qa4 Ned5 Qa8 Na6 Rb3 Bbd4 Rc3 Bg8+ Ke8 Nc7+ Kd7 Qg7+ Kd8 Qf8+ Re8 Qc5 Re5 Bf7 Re6 Qe7+
B5N1/1QRN1KB1/q2NRn1Q/3p2R1/k1B3N1/1nq3pb/r1b3nr/5qbR w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 Kd3 d5 h4 Kd7 c4 e5 b4 g5 f4 a4 b6 Kc6 b7 g3 h5 g4 c5 Kb5 h6 g2 c6 g3 f6 a3 c7 a2 h7 Qe8 f7 Bg7 f8N Nc6 b8R+ Bb7 c8B Na5 f5 Ra6 f6 Re6 f7 Bf6 Qh5 Ra6 Ng6 Nc4 f8N Nd2 Nh3 g1Q Qh6 Ra5 Nd7 Ra6 Bb2 Ra8 Nc3+ Kc6 b5+ Kc7 b6+ Kc6 Nf2 Nb3 Rc1 a1Q Nce4+ Kb5 Ng4 Ra2 Rc7 Qe6 Ne7 Ka4 Nd6 Qf2 Be2 Qff1 Rh5 Bg7 Rg5 Nf6 Ng8 Bc6 b7 e4+ Kc2 d3+ Kc3 d2 Bc4 d1B Ra8+ Na5 Kd4 e3 b8Q e2 Qb7 e1N Ra6 Bc2 Rb6 Qee2 Ra6 Qd3+ Ke5 Qc3+ Ke6 Ng2 Kf7 Bf8 Ne8 Bb5 Re6 Bc5 Nd6 Ba7 Qb8 Bc6 Bb7 Bg1 Ba8 Bb7 Qa7 Bc8 Qb7 Nb3 Ne7 Rg8 h8R Re8 Rh7 Rh8 Ng8 Nf4 Qg6 Ng2 Rh1 Rh2 Qh6 Qd2 Ba3 Nh5+ Ndf6 Rb2 Ne5 Ka5 Re8 Bh3 Ng4 Qde1 Bc5 Qc3 Bd4 Qa3 Re1 Ra2 Re6 Qa4 Be5 Qc6 Bd4 Ka4 Be5 Qa6 Bd4 Qc1 Nd7 Q1e1 Bh8 Nf6 Bg7 Qf1
n1rB1qkn/4q3/BrQ1q1Bp/3QbN2/4b1N1/NRpr2B1/1n4QN/4R1K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 e4 c5 g4 f5 d4 Kf7 b4 a4 e5 c4 d6 a3 d5 c3 d7 h6 d6 a2 g5 f3 g6+ Kg7 e6 h3 e7 f4 e8B h2 b6 Nf6 b5 Ra6 b7 Nh5 b6 Be7 Qc2 Kg8 g7 Bf6 Bg6 Qe7 d8B Bf5 d7 Be4 Na3 Be5 Rb1 a1Q Rb3 Qb2 Be2 Qa2 Kf1 f2 Nf3 Qe8 Rg1 h1N Nh2 Qe7 Bb5 Qd6 Qe2 Qe7 Qf3 Qe2+ Kg2 Qe3 Re1 f1R Be2 Rf2+ Kg1 Qe6 Qg2 f3 Bd2 Nf4 Bb5 Qc5 Be3 Rc2 Bf2 Qce7 Bg3 Nf2 Bc4 N2d3 Bb5 Nc6 b8Q Ncb4 b7 Rb6 Qc7 Nbd5 b8N Nb2 Nc6 Rd2 Nd4 Rd3 Qc6 Nc7 Ba6 Na8 Nf5 Nh3+ Kf1 Ng5 Kg1 Nf7 Bc7 Qb4 d8Q+ Qf8 Qdd5 Qfe7 Bd8 f2+ Kh1 Rb8 Nf3 f1Q+ Kh2 Qe2 Kg1 Rb6 Nh2 Qf3 Bh5 Kh7 g8N Qf4 Ne3 Kg7 Nf6 Kf8 Nfg4 Kg8 Bg6 Qff6 Qdd6 Qf8 Qdd7 Qf6e7 Qdd5 Rh7 Bf4 Nh8 Qa5 Qb4 Qad5 Rc7 Bg3 Rc8 Nf5 Qbe7
1K2bN2/4r1RR/2R1pn2/5Q2/NN1q1pnb/5r2/B1NQq1rB/1qRnB2k w - - 0 1 illegal: No proof kernel
1nNn1Q1r/Q1r2N2/nRp1RKR1/3q1N2/qBR2bb1/1p3r2/1N1b1B2/1B5k w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kd4 h5 f4 b5 a4 h3 g4 h2 f6 b3 f7 h4 f5 e6 f6 h3 g5 b2 a5 c6 a6 b4 g6 b3 g7 Bd7 a7 Be8 Nc3 b1Q Nf3 Na6 Ra4 Qa2 Nh4 Qd7 Nf5+ Kc7 Ke5 Rc8 d4 Nb8 Rc4 Qa4 Bd3 Nh6 Re1 h1N g8R h2 Be3 Nf2 Bb1 h1R Rg6 Ne4 Bf2 Rf1 d6+ Kb6 a8R Nc5 d5 Rc7 Qd4 Be7 f8B Nf7+ Kf4 Nd8 Kg5 e5 Nd1 e4 Ra6+ Kb5 Nb2 e3 Re2 Qe6 d7 Bd6 f7 Qe5 Re1 e2 Qe3 Qe4 Kf6 Bf4 d6 Qd3 Be7 Qd5 f8Q Bf7 Qd4 Be6 Qe3 Rfh1 Qd4 R1h3 Qe3 Rf3 Qd4 Ndb7 d8N Bd7 Nf7 Nd8 Ng7 Bg4 d7 Nd3 Nf5 Nb4 Rd1 e1B Qa7 Bed2 Re1 Nd3 Re6 Nc5 Rc2 Kb4 Rc3 Kb5 N7d6+ Kb4 Nc8 Kb5 Rce3 Kb4 R3e5 Kc3 Rb6 Nca6 Ba3 Be1 Re4 Kd2 Be3+ Ke2 Bb4 Kf1 Bf2 Kg2 Rc4 Nb7 d8N Kh1 Nf7 Nd8 Qd6 Bed2 Qc5 Qa1 Qf8 Qa4
k4qQ1/B1q1BR1B/1rppK3/nQ1NNrbb/4nr2/3R1Qn1/RB5q/4Q3 w - - 0 1 illegal: No proof kernel
nn1r1B2/1QBBN3/RnQBbN2/3n1N1r/q1R3r1/2p1n2k/1b4p1/QK5N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kc2 c5 h4 a5 e4 f5 b4 c4 h5 g3 b6 g2 d6 Ke6 d5+ Ke5 d7 a4 h6 g4 b5 a3 b7 g3 b6 c3 h7 a2 d6 f3 Bb5 f2 Nd2 Kf4 e5 f1R e6 Ra6 e7 Qe8 d8Q Ra4 d7 Nf6 Ne2+ Kg4 Nb3 g1N Nbd4 f4 Ba3 f3 Qc7 g2 d8B f2 Ng3+ Nf3 Qc6 Be6 Ndf5 Nd5 Bc7 Ra8 Qe1 Nd2 Bb4 Rg8 h8N Nc4 Ng6 Rg7 Rh2 Rh1 Bbd6 Qd7 e8N f1N Nge7 Nfd2 Rh6 Rh5 Nh1 Rg8 Nf6+ Kh3 Rg6 Bh6 Rg4 Be3 Rf4 Rg4 Ba4 Bc5 Qc1 Ba3 Qf1 Na6 b8Q Bb2 b7 Ncb6 Rc4 Qe8 Qa7 Rd8 b8B Na8 Qab7 Qd7 Ba7 Nb8 Be3 Qe8 Bh6 Qd7 Bf8 Qe8 Re4 Nc4 Rd4 Ncb6 Rc4 Rh6 Re1 a1N+ Kb1 Nc2 Qg1 Bg8 Re6 Rh5 Bb5 N6d7 Qga7 Nce3 Qa1 Bf7 Qca6 N7b6 Bd7 Na4 Qac6 N4b6 Ree4 Be6 Ra4 Qg6 Ra6 Qh6 Rc4 Qf4 Rc5 Qb4 Rc4 Qa4
2nQ1BB1/2p5/NrqR3K/6BQ/rb2B1b1/3b1Q1N/3RRpnk/r1bRb3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 h4 Ke5 d4+ Kf5 e4+ Kf6 d6 a5 e5+ Kf5 d7 g5 h5 g3+ Kf3 f6 h6 a4 h7 a3 d5 g2 b6 a2 b5 Bb4 b7 Bf8 e6 Bb4 d6 Qe7 d8R Qe8 b6 Ne7 d7 Nbc6 b8Q Nd5 b7 Nce7 Rh6 Ne3 Nc3 Ra4 Nh3 g1B Bg2 Bf2 Qa8 Be1 b8R Rg8 h8B Rg6 Bh1 Ng2 Ne4 Ke5 Kg4 f3 Kh5 g4 Bg5 g3 Nc5 f2 Qa5 f1B Qf3 Bd3 Rd1 a1B Rb7 Bb2 Bg7 Bc1 Bf8 f5 Rb5 f4 Na6+ Nd5 e7 Rb6+ Rg6 Kf5 Kh6 Ke5 Qh5 f3 Rd6 f2 Rc5 Ke4 Rc2 Kf5 Qf7+ Kg4 Rcd2 Nf6 Qfd5 Ne4 Re6 Nd6 Ree2 Nf4 Be4 g2 Qf5+ Kg3 Qg4+ Kh2 Qf3 g1R Qe5 Qf7 e8B Qc4 Bf7 Qc6 Bg8 Rf1 Qe8 Ng2 Qeh5 Rh1 Re8 Rf1 d8Q Bg4 Re6 Nc8 Rd6 Bb2 Rc2 Bec3 Ra1 Rd1 Rac1 Be1 Rcd2 B2a3 Rc5 Ra1 Rc1 Bb2 Rcd1 Bc1
2bQB1N1/pb6/4bK1R/n2r4/B2RNQRp/1b1R2nn/1b1B1r2/1N1k1q1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 e4 c5 g4 f5 d6 f3 b6 f2 d5 f4 d7 f3 b7 h3 d6 c4 g5 c3 g6 c2 g7 Kb3 Bb5 f1B Ra4 f2 Bd2 h2 Ne2 Rh6 Ng3 Ne7 g8N Nf5 Qg4 c1N Qf4 Kc2 b4 Qa5 d8R Kd1 d7 Ne2 Ra3 Qa6 Rd3 Rc6 Ba4+ Rc2 b5 Ba3 b6 Nc6+ Kf6 Bb2+ e5 Ng1 b8N Bh3 b7 f1B Rd4 Na5+ e6 Qb5 e7 Bc4 e8B Bb3 Na6 Qf1 b8R h4 Rb6 Bg4 Nc5 Nh3 Rg1 h1B Nce4 Rc5 Rd6 Rd5 Ra6 Bhf3 Nh1 Ng3 Rc6 Be6 Rg2 Nf5 Rg4 Bg2 Rc3 Ng3 Rcd3 Ba6 Rb8 Bc8 d8Q Bf3 Rb7 Rb8 Rh7 Rb7 Kg6 Rf7 Rh6 Bg2 Qfc7 Rf3 Qf4 Rf2 Kf6 Re5 Nd6 Bgb7 Ne4 Rd5
Q1Qr1nr1/1bNBk1BR/4B3/B7/n1K2n1N/2b1R1Q1/1b1p1pqr/2N1rN2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 Kd3 a5 b4 d5 e4 g5 h4 g4 c4 f3 h6 f2 c5 g3 b6 f4 b5 a4 h5 g2 h7 a3 c6 a2 e5 f3 c7 Qg5 h6 Bh3 c8Q+ Ke7 e6 Bg7 b7 Kd6 b6 Nf6 e7 Nh5 e8B Nf6 Bd2 Ke7 Ba5 Qg4 Qa4 Nh5 Nd2 Nd7 b8N Nf8 Ne2 g1R b7 Bg2 Re1 a1B Bd7 Bb2 Na6 Qh3 b8Q Nf4+ Kc2 d3+ Kb3 d4 Nc1+ Be5 Nc7 Rg8 Rh2 Rh1 h8N Qg3 Be2 f1R h7 f2 Kc4 Bb7 Beg4 Qg2 Re3 Re1 Nf1 d2 Bge6 d1N Rh6 d3 Ng6+ Kf6 Qa2 d2 Nh4+ Ke7 h8B Rh2 Bg7 Nc3 Rh7 Na4 Qb3 Bed4 Qd3 Bf6 Qg6 Bfc3 Qg3 Ra6 Qa8 Rd6 Be8 Rd8 Bb5 Qh1 Bbd7 Qg2
k1q2r2/1R1b1Q2/3bKbn1/3RQ1Q1/3pBrp1/1RRNB2n/r2n2n1/1N1Q1N2 w - - 0 1 illegal: No possible last move, all moves rejected
r2bB3/4R1RN/7k/1b2r1p1/R1QK1Br1/b2RpbQn/1Bq3Nn/nN4B1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 d5 c4 g5 h4 Kg7 b4 e5 f4 a5 b6 a4 b7 a3 h5 g3 b5 a2 c5 g2 b6 Nc6 b8Q Be6 b7 Ra5 f6+ Kh6 f7 Qf6 f5 Kg7 h6+ Kh7 Qg4 Nd8 c6 Ba3 f8B Qg6 c7 Bd7 c8R Nf6 Rc7 Ne6 Nh3 g1B Nf4 Ra8 Bd6 Re8 Ng2 Be3 Qh4 Ng4 Bc5 Nh2 Bb2 Bd2 Qe4 Ba5 f6 Bb6 f7 Bb5+ Kc2 d3+ Kc3 d2 Re7 d1B Bg1 Bc7 Qc4 e4 Bd3 Nf4 Kd4 e3 f8N+ Kg8 Be4 Bf3 Nh7 Bd8 Qd6 Kh8 b8B Nh3 Qg3 Qf5 Rg7 Re5 Bd3 Qc8 Bg6 Qf5 Re7 Qc2 Be8 Kg8 Nc3 Kh8 Rd1 a1N Nb1 Re6 Bf4 Re5 Rd3 Kg8 Ra7 Kh8 Ra4 Kg8 Nf6+ Kf8 h7 Kg7 Rb4 Kh6 h8R+ Kg7 Rg8+ Kh6 Kc5 Ra6 Nh7 Ra8 Rg7 d4+ Kd6 Re6+ Kc5 Re7 Rb3 d3 Kd4 d2 Rd3 d1R Ra4 Re5 Bf2 Rd2 Rc1 Qd1 Bg1 Qe2 Rc3 Rc2 Rb3 Rc3 Rbb4 Qc2 Raa7 Rb3 Rba4 Rb4 Rae7 Qd1 Kc3 Nf1 Qg8 Re6 Be5 Rg4 Bf4 Nh2 Kd4 Re5 Qc4 Qc2
1NQKB1R1/2BrB3/1B1R2Q1/3qp2b/2QbQn2/1b2N1nr/1b1p1kr1/1n1R4 w - - 0 1 illegal: No possible last move
8/Bk1b2N1/2bb3p/RrQ1bK1Q/2nN2rp/RQRB1Bq1/3nQrn1/6B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 b4 c5 d4 Kc7 e4 a5 g4 a4 e5 h6 g5 c4 g6 c3 b6+ Kb7 b5 a3 g7 c2 e6 a2 d6 Be7 d7 Ra6 d5 Qf8 d8Q Ra8 d6 Ra3+ Nc3 Ra6 d7 Ra4 Nce2 Ra3+ Be3 c1R Nd4 Bd6 e7 Rb1 e8Q Ne7 g8B Ra4 Ne6 Ng6 Qde7 Qg7 d8R+ Bd7 Qe2 Nc6 Rh3 Na5 Ra8 Nc4 Ra5 Qe5 Bh7 Rf8 Bg2 Rb3 Rc1 a1B Ng7 Qc3 Qe5 Bc6+ Qd5 Qe1 Rc3 Rb1 Ra3 Bae5 Bf2 Bd4 Q8e3 B4e5 Qc5 Rb2 Qc2 Rbb4 Ne2 Rb1 Bg1 Qc3+ Kf2 f3 Nd4 Nf4 Qe2 Rf7 Bh1 Ng2 Rg3 f4 Bd3 Bf6 Qh5 Bfe5 Rh3 Rbb4 Kf1 f2 Re3 Kc8 b7+ Kc7 b8B+ Kb7 b6 Rb5 Ba7 Qb3 Qb2 Be8 Ke2 f1N Kf3 Nfd2+ Kg4 f3 Qc2 f2 Qd1 f1B Qe2 Rf2 Rf3 Nf4 Kf5 Bg2 Re3 Bgc6 Bf3 Qb1 Rc3 Qf1 Ra3 Qg2 Rc3 Qg3 Ra3 Kc8 b7+ Kc7 Rc3 Ng2 b8Q+ Kd7 Qbb6 Kc8 Qd5 Rab4 Qbc5 Kb7 Rca3 Nb6 Qb3 Rc4 Nc2 Rg4 Nd4 Nbc4 Be4 Bf8 Rc3 Bfd6 Bd3 Bd7+
5Q2/3bB2B/pnrnnb1r/p1qR1b1k/N1B5/N1Q3R1/1r2R1QK/R4Qb1 w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Bb7 a5 bxa5 Qf3 Ba6 Qd1 Bc8 d4 Kf7 g4 c5 f4 h5 Kf2 e5 Kg2 c4 b4 c3 b5 c2 g5 e4 g6+ Kg7 d6 Kh6 f6 h3+ Kh2 e3 f5 h4 d5 a6 b6 Qd7 b7 Ra7 g7 Nc6 b8R Nge7 g8B Qc7 f7 Nd4 f6 Bd7 Qe2 Qc5 Rb2 Rb7 Bh7 Bg7 f8Q Ne6 f7 Nc8 Qg2 Kh5 Na3 e2 Bg5 e1B Be7 c1R Ne2 Bf2 Rg1 Bf6 Nc3 Nb6 Re2 Rc2 Qfg7 Rc7 f8Q Rc6 Q7g3 Rb2 Na4 B2d4 Qc3 Be3 Bd3 Rh6 Bh7 Bed4 Rf2 Be3 Bc4 Bed4 Re2 Bf2 Kh1 h2 Qf1 Be3 Rg3 Bg1 Kg2 h1N Qa8 Be8 d7 Nf2 d8Q Bd7 d6 Ne4 Qf8 h3+ Kh1 h2 Qb7 Bc8 d7 Nd6 d8R Bd7 Kg2 h1B+ Kh3 Be3 Kh2 Be4 Qa8 Bf5 Qb7 Rc7 Qbg2 Rc6 Rb8 Na8 Rb3 Nb6 Rb5 Qd4 Re5 Qc5 Rd5 Bg1+
5k2/2ppNq1R/2Q1n1br/R3n1N1/2nrb3/1NR1r2Q/1b1QQ1Bn/B3NK2 w - - 0 1 illegal: No proof kernel
BK5R/Bbnr1bQ1/N1Q1r1p1/3b4/bbq2k2/R7/2Q2pQ1/q2RNRnN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 h4 f6 c4 g6 b4 d3 h6 d6 b6 d2 b7 f3 e4+ Kg4 h5 a4 c5 a3 b5 f5 c6 f4 h7 a2 c7 Bd7 c8Q Ra6 h6 Qb6 e5 Be7 e6 Kg3 Bg2 f2 Qf1 d1B Na3 f3 Nh3 Be8 Qc2 Bf7 Be3 Nd7 b8N Qc7 b6 Ne5 b7 Rb6 Rc1 a1Q Na6 Rc6 Qfe2 f1B b8R Bf8 Ba7 Ne7+ Ke4 Qc8 Rb3 Nd5 e7 Nc7 e8Q Rg8 h8R Rg7 Qed2 B1c4 h7 Be7 Rc3 d5+ Kd4 Rd6 Kc5 d4 Rf1 d3 Nf2 Bcd5 Qc6 Re6+ Kb6 Bb4 Nh1+ Kg4 Qf2 d2 Qe2 Qg8 Kb7 Kf4 Qf2 Be2 Rcd1 Bec4 Qg1 f2 Bf3 Bb5 Qg2 Ba4 Be4 Nf3 Re3 Ne8 Kb8 Nc7+ Qe8 Qf8 Qc3 Ng1 Rg8 Ba2 h8Q Qc5 Ba8 Bd5 Nc2 Qc4 Qc6 Be8 Ne1 Rd7 Qhg7 Bf7 Rd3 Bf3 Qc2 Bd5 Qb6 Bac6 Ra3 Bb7 Qc6 Bc3 Qb1 Ba5 Rh8 Bb4 Rc1 d1B Qb3 Bc2 Rd1 Re3 Qbc3 Ba4 Qc2 Re6
2k5/Br1r1R1b/1R1p1Q2/NN2N2B/2nB2q1/2qnBr2/K2pQQ2/2r1bNr1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 g4 a5 b4 h5 c4 e4 Kc2 e3 Kb3 e2 f4 e1Q f6 d3 f7+ Ke7 g5 d2 g6 h3 g7 h4 b6 h2 b5 h3 c5 Qf2 b7 Qe2 c6 Ke6 b6 Qf6 f5+ Ke7 c7 Qa6 Ka2 Rh7 Be2 Qc3 Bh5 Ra7 Nf3 Nf6 g8Q Ne4 Qgg1 Nc5 Qf2 Qe2 Rf1 h1R Ne5 Qg4 Qde2 Nc6 b8N h2 b7 Rg1 f6+ Kd6 Bb2 h1R Bc1 Be7 f8Q Rh3 f7 Nd3 Qh8 Bh4 f8B+ Ke6 Bc5 Rf3 Bd4 Rhf7 Qh6+ Ke7 Qf6+ Ke8 Ng6+ Nce5 Nc6 Re7 b8B Rb7 Bba7 Nc4 Nge5+ Rf7 Na3 Bg3 Nc2 d6 Ne3 a4 Bb2 a3 Na5 Bd7 c8N Bf5 Rab1 Bh7 Ba1 Bh4 Rb6 Rd7 Ne7 Kd8 N7d5+ Rfe7 Nc7 Kc8 Nb5 Rb7 Bb2 Red7 Bc5 Qc1 Bbd4 Qc3 Qh2 Be1 Rf2 Rfg3 Nf1 Rh3 Be3 Rf3 Bcd4 Qc1 Kb3 a2 Qg3 a1R Qgh4 Rb1+ Ka2 Rfg3 Rf5 Rf3 Qhf2 Qc3 Q6h4 Rb8 Rf7 Rbb7 Qf6 Rc1
B2BR2B/1qR3N1/Rn1pbr2/1nN1k3/QQn2b2/2Npn3/1qNr4/1K1nR3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 c4 h5 Kc2 a5 b4 d6 c5 h3 b6 h4 c6 a4 g5+ Kg7 g6 Kf6 c7 e4 b7 a3 b5 h2 g7 e3 b6 e2 Bb2 h3 Bg2 a2 Na3 Be6 c8R Ne7 g8R Na6 b8Q Bh6 b7 Nd5 Rc7 Nb6 Re8 e1N+ Kc1 Rh7 Qa4 Rf7 Ne2 Nf3 Re1 h1Q Nc3 d3 Nc2 Nd2 Bf3 h2 Bc6 Kg7 f6+ Kg6 Bg2 Kf5 Bf3 Rf8 f7 Ndc4 Bc6 Qg2 Bd5 h1N Bc6 Rh8 f8N Nf2 Nd7 Nd1 Nc5 Bg5 Bf3 Rh2 Bc6 Qe4 Bd5 Kf6 Bc6 Rd2 f5 Ke5 f6 Qe7 f7 Bf4 f8N Qh4 Nh7 Qd8 Nf6 Qc8 Nh5 Qe3 N5e4 Qc5 Ng7 Qa3 Nc5+ Nde3 Be4 Nd1 Qa7 Qd7 b8B Qc8 Qb4 Qb7 Rd7 Nc7 Qaa4 Nb5 Bc7 Rc8 Bd8 Ra8 Rc7 Rc8 Bg5 Rd8 Bh4 Rd7 Bd8 Rf7 Rh1 Rf6 Bg2 Qb8 Ba8 Qb7 Re1+ Nde3 N3e4+ Qc3 Nh5 Rf5 Rd7 Kd5 Qaa5 Nd1 Rc7 Qb3 Bh8 Rf6 Qa6 Ke5 Ng7 Qa4 Rb1 Qa5 Rb3 Qa4 Ra3 Qb3 Nd4 a1N Nc3+ Be3 Ra4 Qa3+ Kb1 Nc2 Ra5 Qe4 Qa7 Bf4 Qa6 N2e3 Nc2 Na7 Qab5 Qb7 Q5a4 Nb5 Ra6 Qb2+
1bBNnq1r/R2q1p2/b5bR/2BNR1BK/1QpQ4/3r3R/2bB4/Nb3kn1 w - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 g5 h4 gxh4 b4 axb4 Kf2 Ke7 Kf3 h5 e4 c5 a4 b5 d4 b3 g4 b2 d6+ Ke6 d5+ Kd7 a5 c4 g5 h3 e6+ Ke8 a6 h4 Kg4 h2 a7 b4 d7+ Ke7 e5 b3 g6 h3 g7 Bb7 Nf3 Rh5 Ne1 Rh8 Nc2 Rh5 Ra3 Rf5 Nc3 b1Q Na1 b2 Kh4 Nf6 g8Q Qa2 Qgg4 b1B Qb3 Rf4 Bd2 Nc6 Qa4 Rc8 a8R Ba6 Ra7 Rd4 Bd3 Qb2 Bf5 Qb8 Qb4+ Qd6 Qf4 Bh6 Qe4 Bf4 Rb3 Bg3+ Kg5 Qc7 Qf4 Rh8 d8B+ Kf8 e7+ Kg7 e8R Qf8 e6 Ne5 e7 Qd6 Bc8 Qd7 Rg1 h1B Bb6 h2 Bc5 Bhe4 Rh1 Bec2 Qf2 Kh7 Qe3 Bf4+ Kh4 Kh6 d6 Qc6 d7 Nf3+ Kh3 Kh5 d8B Qb5 Nd5 Bb8 Qf4 Bg6 Re3 Rd3 Qd4 Ne5 Kg3 Qd7 Kf4 Kh4 Rg3 Bh5 Rg6 Kh3 Kg5 Kg2 Rh6 Bd1 Kh4 Bdc2 Kg5 Nfg4 Kh5 Nf3 Rf1 Ne1 Rf3 h1B Rh3 Kf1 Bc7 Nf2 Bcf4 Ne4 Bg5 Bg2 Rd8 Nf3 e8N Nd6 Ng7 Ng1 Ne6 Be4 Re8 Bh7 Nd8 Bf5 Ree3 Ne8 Re5 Bg6+
n1N1q3/bQR1q1bB/Q1rB1Rb1/4Q3/NBB2rp1/1p2n2q/3b1R2/1Q3K1k w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 f4 Kf6 a4 g5 d4 c5 d6 e5 h5 b5 a5 g3 h6 g4 a6 e4 d5 b3 d7 c4 d6 b4 h7 e3 a7 e2 Rh6+ Kf7 f6 Ke6 f5+ Ke5 f7 Ke4 f6 g2 Na3 b2 Bd2 b1Q Nb5 b3 Bb4 Qe7 d8Q c3 d7 c2 Qc7 c1B d8Q Bg7 f8B Nd7 f7 Nb6 Q8d6 Bf5 Rf6 Rc8 Qb7+ Rc6 a8B Nh6 Na7 Bg6 Nc8 Nf5 Ra7 Ne3 Rf2 Rg8 h8Q Qd3 Qf6 Qe8 Bfd6 Rf8 Qa1 Qe7 Qaa6 Qe8 Rf6 Bd2+ Kf2 Qe7 Qb1 Qe8 Nf3 Qe7 Ne5 e1Q+ Kg1 Qe8 Nc4 Qh4 Nb2 Qh3 Bf4 Kf3 Na4 Qdd8 Bc4 Qde7 Qh5 Ned5 Bfd6+ Nf4 Qc7 Kg3 Bb7 Na8 Qe5 Qh7 Qb8 Kh3 Kf2 g1B+ Kf1 Kh2 Qc7 Kh1 Qcb6 Rg8 f8R Ng2 Rf2 Qh8 R8f6 Qh3 Qc7 Rf8 Qb8 Rc5 Be4 Rc6 Rc7 Rf7 Qbb7 Rf8 R2f5 Ba7 Rf2 Rf7 Re6 Rf4 Rf6 Bf7 Bh7 Bh5 Qc3 Bg6 Qe5 Ne3+
Qb2q2r/4B1N1/2r3rn/1B1R1N2/1BK2pp1/QRN1N1rk/5qb1/b1n2BR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kd3 c5 b4 a5 h4 f5 e4 f3 d6 Ke6 h5 g3 e5 g2 b6 a4 d7 g4 b5 f4 d5+ Kf5 h6 f2 d6 a3 e6 a2 b7 Qa5 d8B Be7 d7 Bf8 e7 Ra6 e8B Rg6 h7 Bd6 b6 Qb4 Ba3 Qa4 Rh5+ Rg5 Qf3 Ne7 Ne2 g1R Bb4 Rg3 Kc4 Nbc6 b8Q Ng8 b7 Nd4 Qa3 Nb3 Qa8 Nh6 b8R Bb7 Nec3 Nc1 Nd2 Bg2 Be7 Qc6 Rb1 a1B d8N Qa4 Rb6 Bb8 Ne6 Qc6 Rb5 Qd7 Rh1 Rg6 Rg1 Qc8 Bd7 Qd8 Rb3 Qe8 Be2 f1Q Ng7+ Ke5 Ra5 Qe1 Bb5 Qf2 Nh5 Kf5 Bf1 Rf6 Ng7+ Kg5 Qd5+ Kh4 Qa8 Rf8 h8N Kh3 Nf7 Rg6 Nd6 Rh8 N2e4 Re6 Nd1 Rg6 Kd5 c4 Ne3 c3 Ndf5 c2 Kc4 Nd3 Nc3 c1R Ra6 Rc2 Rd6 Nc1 Rd4 Rd2 Rd8 Rdd6 Rd7 Rb6 Rd5 Rbc6+
n3Bqr1/N1k2bN1/2b1BrR1/2RR3p/q4n1p/1Q2BB2/4Q3/1NN1Kbbn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 g4 c5 e4 h5 b4 a5 b6 f5 b7 f3 g5 a4 g6 f4 g7 a3 d6 c4 d5 a2 b5 c3 e5 c2 e6+ Ke8 e7 Kd7 b6 Nf6 g8B Ng4 Be3 c1N Qe2 Nf2 Bg2 Na6 b8Q Rh6 b7 Nc7 Rh3 Re6 Rg3 Nh1 Rg6 Rf6 Bf7 Qe8 Bg8 Qf7 e8B+ Kd8 d7 f2+ Kd1 f1B Ke1 Bg7 Bf3 Qf8 Bgf7 Bg2 Be6 Ke7 d8N Kd6 Nc6 Bd7 Na7 Bc6 Qb5 Bh3 Ne2 Bf5 Qc4 Bd3 Qb3 Bc4 Qc8 Bh6 b8R Bg7 Rb5 Nd3+ Kd1 Rb8 Rc5 Na8 Qa6 Kc7 Nc1 Rc8 Qaa3 Rd8 Qab2 Rb8 Qe2 Rc8 Be4 f3 Kd2 f2 Bf3 f1B d6+ Kd8 d7 Kc7 d8N Nf4 Ke1 Bh6 Bf5 Bf7 Be6 Bg5 Nb7 Bh6 Nd6 Bg7 Nf5 Rd8 Nd2 Bh8 Rb1 a1Q Ng7 Qa4 Rb2 Rd5 Nb1 Rg5 Rd2 Rg3 Nf5 Rg2 Rdd5 Rg1 Rh6 Rg8 Rg6 Bg7 Bd4 Bh8 Rg1 Rfg6 Rg3 Bf6 Ng7 Rh6 Bf2 Bd4 Rg1 Rf6 Rg6 Bh3 Bg3 Bg1 Bf2 Bg2 Be3 Bf1
1Br2QN1/N4B1R/N3B2q/R1B1b2p/Q1b1p1bK/1rN1rk2/1nQ5/qn5r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 f4 Kd6 Kf2 a5 g4 c5 b4 e5 f5 h3 Kg3 a4 b6 h2 f6 h6 b7 a3 f7 c4 g5 e3 b5 a2 b6 c3 g6 e2 g7 e1R Nd2 c2 Ne4+ Ke7 d6+ Ke6 d7 Kd5 Ba3 c1R Qa4 Re2 Bc5 Nf6 g8B Re3+ Kh4 Rcc3 Ne2 Rb3 Bh3 Na6 b8B Bg7 b7 Qb6 d8N Bg4 Nc6 Nb4 Na7 Nd3 f8Q+ Qe6 Bf7 Nb2 Ng5 Ne4 Nh7 Nc3 Qc8 Ke4 d5+ Nc4 d6 Kf3 d7 Nb1 d8Q Nb2 Qf8 e4 Qc7 Be5 Nf6 Qc6 Ng8 h5 Nc3 Qh6 Rd1 h1B Rd7 Bg2 Re7 Bf1 Qcc6 Bd7 Bhe6 Bc4 Qc7 Bd4 Qh2 Be5 Qc2 Bc8 Bbd6 Bd7 b8N Bc8 Na6 Bd7 Bd5 Bg4 Bde6 Rd8 Bb8 Rd1 Rc7 Na3 Rc1 a1Q Rb7 Nb1 Rb5 Rd8 Ra5 Rc8 Rd1 Rh7 Rd7 Rg7 Bd5 Rg5 Bfe6+ Rf5 Rh7 Rf6 Bf7 Rd6 Bde6 Rd1 Rb5 Rc1 Ra5 Rh1+
nq1Q1Q2/8/1RBRRr2/1nrNN1p1/1Qb1pq2/rQ6/rB2n3/1BK1R1bk w - - 0 1 illegal: No possible last move
N1r4n/bB5Q/2Q3N1/nqq2kpp/r1Nn1n2/2Bb2RK/rR4B1/Q2B1N2 w - - 0 1 illegal: No proof kernel
1q1r1Qn1/5R2/NQ1Bk3/Rpr1n3/R1q1K2R/p1Q3b1/B3B3/BNqbq1n1 w - - 0 1 illegal: No proof kernel
2nB2Br/1nr2N2/1k3r2/Rp2q2p/b3B2Q/q2K1QQN/2rQ1N1b/R1qN4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 f4 e5 a4 b5 g4 c5 d4 Kc7 a5 h5 a6 c4 a7 h3 g5 e4 g6 b3 d6+ Kb6 d5 e3 g7 b2 f6 c3 f7 c2 d7 h2 d6 Rh6 f5 Rf6 Qd2 Qc7 d8Q Re6 d7 Nf6 g8Q Be7 f8N Ne4 f6 Nd6 f7 Rf6 Kd3 e2 Ne6 e1Q f8Q Qe5 Qg3 Na6 Nc3 b1R Ra5 Rb2 Nh3 Qc5 Nef4 Qa3 Rg1 h1R Nf2 Rh4 N4h3 Rc4 Qf7 Bb7 Qd5 Nc8 Qdf3 Bd6 Qe7 Be5 d8N Bd5 Nf7 Ra2 Bb2 c1Q Be2 Rb8 a8B Qcc5 Ba1 Rc2 Re1 Be6 Be4 Bf4 Bf1 Qe5 Bg2 Rc7 Rf1 Rh6 Qeh4 Bb3 Ncd1 Rf6 Bh7 Ra8 Bg8 Ba4+ Bc3 Nb8 Bh1 Nc6 Re1 Nd8 Rg1 Qac5 Bb4 Qf8 Be7 Nb7 Bd8 Rb8 Qfe3+ Qfc5 Be4 Ra8 Qgf3 Bh2 Qfg3 Rb8 Qef3 Q5a3+ Nc3 Qe8 Bgh7 Na7 Be7 Qcb2 Rb1 Qc1 Ra1 Rfc6 Bg5 Qe5 Bf6 Rf8 Bd8 Rh8 Bg8 Rg6 Qhg5 Rf6 Q5h4 Qf8 Ncd1 Nc8 Ke2 Qfc5 Kd3 Q5a3+
k1b4r/r2b2b1/1Q1RpnN1/rqrRQ3/Q4KRn/5p2/1BN5/q2R1QNB w - - 0 1 illegal: No proof kernel
rBN2b1B/Q2q1b2/1pr1Qb2/3R1QN1/B4K2/2n1BqNR/kpn3Q1/2q2q2 w - - 0 1 illegal: No possible last move, all moves rejected
nq2B1r1/2N2B1Q/QpN3Rp/2B1q1b1/3RbNk1/4n3/qr1Q2rQ/3K2qB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 g4 c5 f4 e5 a4 b3 f6 b6 f7 h3 g5 b2 f5 c4 d6 e4 f6 Ke6 g6 Kf5 a5 h2 d5 c3 a6 c2 d7 e3 g7 e2 a7 h6 d6 Qc7 d8N Nc6 d7 Nd4 Qd3+ Kg4 Qa6 Qc6 Ra4 Qb5 Na3 b1R Nc6 Qd3 d8Q Bf5 Nh3 Rb2 Nb5 Ne7 g8B Qb3 Nf4 Qa2 Be3 Nd5 Nc7 Nb3 Bc5 Be4 Rd4 Be7 f8Q Nd2 f7 Bg5 Qfe7 Rh7 f8Q Rg7 Bg2 Nf1 Rg1 h1Q Bf7 Qh2 Qfe8 Rc8 a8B Rg8 Qdd6 Rg7 Qh8 Rcg8 Qed8 Rg6 Qh7 c1Q+ Rd1 Qc3+ Rd2 Qe5 Rd4 R6g7 Bh1+ Kh4 Nb5 Nc7 Bb7 Na8 Nc7 Rg6 Bc8 R6g7 Bd7 Rg6 Ng2+ Kg3 Bde8 Kg4 Qb8 Rf6 Qd5 Rf2 Nf4+ Rg2 Ra4 Qh5 Qd2 Qg6 Rd4 Qgf6 Qd8 Qfd6 Qf6 Qd8 Qfg6 Qb8 Qh5+ Kg3 Qh2+ Kf3 Qh8 Kg4 Qh7 Ng3 Be6+ Kf3 Na5 Be7 Bc4 Bd8 Rd6 Bh4 Rg6 Qc8 Qc1 Qb8 Nc6 Bg5 Bcf7 Kg4 Qc2 Kf5 Kd2 Kg4 Rd1 e1Q+ Kc1 Qf2 Rd4 Nf1 Qd2 Qg1 Kd1 Ne3#
rbRbN1nk/B1B4p/BBrN3Q/1bq5/1Qp5/b2n3K/1R1Rq1Q1/1Q2n3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 b4 Kg7 f4 a5 Kf2 c5 g4 e5 Kg2 a4 g5 e3 f5 e4 b6 e2 b7 e1Q b5 a3 g6 a2 d6 e3 d5 e2 d7 Ra7 b6 Qg5+ Kh3 Ra8 d8R Nd7 b8Q Qe7 d6 Qe5 b7 Q1c3+ Be3 e1B Ne2 Qd3 Nf4 Be7 f6+ Kh6 f7 Kg7 Ne6+ Kf6 g7 Ba5 f8Q+ Kg6 Nc7 Qe2 Na3 Q5h5 Qf4 Ne5+ d7 Nd3 Rb1 a1B Ne8 Ne1 Nb5 Be5 Nbd6 Bb4 Qc1 Ba3 Qb4 Ra6 Rb3 Rc6 Rh2 Bf4 Rb2 c4 Ba7 Qc5 Bg2 Kh6 Qb1 Bf6 Qc7 Be7 b8B Ba6 Rc8 Bd8 Qcb6 Bb5 Bc7 Be5 Bf3 Bf4 Kg4 h3 Qa6 Qe4 Rhd2 h2 Kh3 Qe2 Be4 h1N Bg2 Ne7 g8Q Be5 Qg3 Rf8 Bd5 Ng8 Qg2 Bg3 Nf6 Kg7 Nfe8+ Kh8 Be4 Rb6 Bb7 Rc6 Qb6 Qd5 Qe3 Qc5 Qh6 Bf4 Ba6 Bg3 Ne4 Bf4 Bcb6 Bb8 N4d6 Nf2+ Kh2 Bg5 d8B Nfd3 Bdc7 Bd8 Kh3 Bh4 Nf6 Bg5 Re8 Bh4 Re7 Rc8 Re8 Bg5 Bd8 Bc7 Rf8 Ra8 Re8 Bb8 Bdc7 Ba4 Rc8 Bb5 Nfe8 Bd8
2rN3k/1bbB1Rp1/B1r5/qQ1NK3/RQ1r2p1/2rbn2q/1R1BQ3/R2Q3n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 e4 c5 b4 f5 h4 Kf7 d4 c4 e5 f3 Kg3 c3 Kf4 c2 h5 a4 e6+ Kf6 b6 a3 b7 f2 d6 a2 h6 Kg6 h7 Ra7 b5 Na6 b8R Kf6 d7 Rc7 e7 Rb7 e8B Ne7 b6 Nb4 d5 Rc7 d6 Rg8 h8R Bb7 Ne2 Rc6 Bd2 c1R Nbc3 Nc2 Nd4 Ne3 Ba6 f1B Ne6 Bd3 Qe2 Rc2 Raf1 a1R R8h5 Qc7 d8Q Rd1 Bd7 Kg6 Ke5 f4 Nd5 N7f5 Qe7 f3 Nd8 f2 R5h2 R2c3 Ra8 Ng3 Ra7 Bc8 b7 Qa5 b8Q Bb7 Rhg1 Nh1 Ra8 Bc8 Qb5 Bb7 Rhg2 Kh7 Ra7 Rb1 Ra8 Rb4 Ra1 Bg6 Rgf1 Bd3 Ra4 Rbc4 Rfa1 f1Q Ra7 Rd4 Rf2 Rh8 Rf7 Bc8 Rb7 Qh3 Ne6 Nf5 Qc5 Qf3 Ndf4 Rb6 Bc1 Rdc4 Bdb5 Ne3 d7 Bf5 d8Q Qh3 Qdd1 Bd3 Nd5 Rd4 Bd7 Rc6 Rb2 Bb7 Bd2 Rg8 Qed6 Kh8 Qb5 Be7 Qa3 Rgc8 Nd8 Bc5 Qab3 Bb6 Q3b4 Bc7+
1N2k3/3q2pr/2R1B2q/n1pK2b1/b1QQ1rR1/q6Q/B1r3RB/rRN2nQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 d4 f5 b4 c5 e4 f3 Ke3 f2 h4 g3 e5 f4+ Ke4 f3 h5 a4 d6 g2 e6 a3 h6 a2 b6 Qc7 b5 Ne7 b7 Rg8 b6 Nf5 h7 Ne7 h8Q Ra7 d7+ Kd8 d5 Nec6 Nd2 Ne7 Rh4 Ra5 Nc4 Qg3 Ne2 g1Q Rg4 Nf5 Bf4 Ne3 Bh3 f1Q Rb1 a1R Ne5 f2 Nc1 Ke7 d8R Ng2 d6+ Kf6 e7 R5a2 e8B Ra6 d7 Ke7 Kd5 Qb5 Bf7 Qh1 Qg1 Qa3 Bh2 Nc6 b8Q f1R b7 Rf4 Qc7 Rb6 b8R Na5 Rb2 Ba6 Rdc8 Rh6 Qb6 Rh7 Rc6 Rc4 Rf2 Rc2 Rb7 Qba4 Qb4 Bb5 Qc4 Kd8 Re2 Be7 Rbb6 Rf8 Bg8 Nh4+ Reg2 Bg5 Rb7 Nf5 Be6 Ba6 Rb1 Ng3 Bg8 Bb5 Be6 Re8 Bg8 Ke7 d8Q+ Kf8 Qd7 Nf1 Qd6+ Re7 Nd7+ Ke8 Nb8 Re4 Qf6 Rf4 Qfd4 Rc3 Rg3 Qd1 Bhe6 Rc2 Rg4 Qd2 Qe3 Ba4 Qg1 Rh3 Qh4 Qdd3 Qg3 Rh7 Qh3 Qf5+ Qe5 Qf7 Qed4 Qd7+ Ke5 Qa2 Qcd5 Qe7 Qh4 Rh6 Bg3 Qd8 Bf5 Qh3 Bh2 Qaa3 Qg3 Qh4 Qh3 Qb2 Qdb3 Qc8 Qbc3 Rh8 Ba2 Qd7 Bfe6 Qa3 Qcb4 Qh6 Qbc4 Qa7 Kd6 Rh7 Kd5 Qd7+
Rrk5/q2pn1Q1/5K2/bnq3B1/1RRRnp2/3nBN1N/3QBB2/Q1r3qb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 Kf3 g5 Ke4 f5+ Ke5 a4 c4 f3 e4 f2 h4 f4 b4 d3 c5 a3 c6 g4 h6 d2 c7 g3 h7 g2 h5 a2 h6 Nf6 b6 Ng8 b7 Ra7 b5 Na6 b8B Nc5 b6 Na4 b7 Nb6 Be2 f1N Nh3 Ra4 Ba7 g1Q b8R Nd5 Bf2 Bb7 c8R Qh2 Rc4 Bc5 Qe1 d1N Bce3 Be7 Nd2 Qc8 Rb1 Ra6 Ra8 N5c3 Rbb4 Bc5 Kf5 a1Q e5 Ra3 Kg6 Kd8 Rg1 Bh1 Nf3 Nb5 e6 Rc3 Kg7 Nd2 e7+ Kc7 Kf7 Nf1 Rd4 Qa3 Rbc4 Qa7 Qd2 Nd6+ Kg6 Ng3 Kg5 Nb2 Rb1 Nd3 Rbb4 Rc2 Kg6 Qg2 Nhg1 Rc1 Nh3 Nf6 Kg5 Re8 h8B Ng8 Bf6 Qf1 Kg6 Nge4 Bg5 Qg1 Kg7 Rf8 e8Q Nb5 Qg6 Ne7 Qa6 Kd8 h7 Bb6 Qa1 Ba5 h8Q Qab8 Qh6 Qc5 Qf6 Kc7 Qh6 Qa7 Qh8 Rb8 Kf7 Nf5 Qg7 Kc8 Kg6 Ne7+ Kf7 Ned6+ Kf6 Ne4+
2q2Kn1/b2p2p1/R4Q1r/2nN3N/q3rQnn/B1R2r1k/Q4RbN/3R1Q1B w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 e5 Kd5 a5 f4 d3 h4 g3 b4 d2 c4 g2 h5 e4 b6 e3 h6 a4 h7 e2 b7 e1Q c5 a3 c6 a2 b5 Qee7 b6 Qb4 c7 Qa3 Nf3 g1R Nh2 Ra7 Bg2 Ra4 Qf1 d1N Nc3 Qb4 Ba3 Nc6 b8Q Ne5 b7 Be7 Qa7 Nb2 b8Q Ba6 c8R Kf7 f6 Kg6 f7 Kf5 f8Q+ Bf6 Qaa8 Qba5+ Kd6 Nf3 Nd5 Re4 Rc3 Nh4 Rd1 a1N Qc7 Kg6 f5+ Kg5 Qcb8 Bd4 f6 Bb7 f7 Qb5 Qe7+ Kh5 f8R Nb3 Rf2 Ba7 Qf6 Qa4 Bf3+ Rgg4 Rg1 Rf4 Bh1 Rf3 Qc7 Rd4 Rg6 Qc8 Qcc4 Rg4 Qcd4 Nc5 Qdf4 Bb6 Qaa6 Nbd3 Qac4 Ba7 Qa2 Nh6 Ke7 Ne5 Qe3 Re4 Qef4 Rg8 h8N Neg4+ Qe6 Rd8 Rf6 Bc6 Ng6 Ng8+ Kf7 Ba8 Qe7 Re8 Ra6 Bb7 Qef6 R8e6 Nf8 Bc6 Nh7 Bb7 Qd8 Rh6 Kf8 Nf5 Nhf6+ Kh4 Rg2 Kh3 Nh5 Nh4 Rf2+ Ng2 Qb5 Nh4 Qbb1 Qcc6 Qdf6 Qc8+ Kf7 Qb4 Nc7 Qa4 Qd3 Rc4 Qde2 Rg3 Qf1+ Bg2 Nd5 Rd3 Ng3 Re4 Nh5 Qc7 Kf8 Rf3 Bb2 Qcc6 Ba3 Qc8+
3b1R2/Q1pr4/RqQNQ1nn/2N2Bkr/1R3N1p/2N1q3/b2nn1r1/3QK1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 e4 Kf6 b4 a5 g4 h5 d6 f3 g5+ Kg6 d5 f5 e5 h3 e6 f4 b6 a4 b5 h2 d7 h4 e7 a3 e8N a2 d6 Kf5 g6 Qe7+ Ne2 Qe5 d8N Qe3 d7 Rh5 b7 Nc6 b8R Be7 b6 Nh6 b7 Kg5 g7 Ne5 g8Q+ Ng6 Bh3 Qb6 Rf1 h1Q Bd2 Qhg1 Qe6 Qge3 Nc3 Ra4 Bf5 Rd4 Qa4 Rd6 Qc6 f2+ Kd1 f3 Nf4 Rd3 Nd6 Rd5 Ra8 Rd4 Rb1 a1R b8Q Ra2 N8b7 Bd8 Nc5 Ba6 Qbb7 Bc4 Rb4 Rb2 Ra5 Ba2 Ra6 Rd3 Qa7 Rd5 Re1 f1N Re2 Rd4 Rf2 Ng3 Rf1 Ne2 Ke1 Be7 d8Q Rd3 Nc4 Rd7 Nd6 Rc2 Qh8 Bd8 Qd4 Qe5 Be3 Rd2 Bg1 Qe3 Rf2 Rb2 Qd1 Rc2 Rh2 f2+ Kf1 Rb2 Rh3 Rc2 Rf3 Nf8 Nfd5 Nc1 Bh3 Ng6 Rf8 Rb2 Nf4 Rd2 Bf5 Re2 Kg2 f1N+ Bf2 Nd2 Kg1 Ne4 Kf1 Rb2 Bg1 Rg2 Nb3 Ne2 Nc5 Nd2+ Ke1 Qf3 Qeb3 Qe4 Qe6 Qe3
q4Q2/r1pBrK1N/3BQ3/2B3rR/1pnnn3/bkNR2Q1/Rq2b3/2R1r2Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 b5 g4 h5 d4+ Kb6 a4 Ka5 f4 b3 d6 Kb4 f6 h3 f5 b2 d7 h4 Ke6 h2 a5 h3 g5 Ra6+ Kf7 e5 g6 e4 g7 e3 d5 e2 d6 e1R Nf3 Rh6 Be3 Rh7 Nc3 b1N Ng5 Ra7 a6 Ra8 a7 Rh5 Nh7 Na3 Rc1 Re2 Bc5+ Kc4 Qe1 Ba6 Qg3 Kb3 Bg2 Qc8 d8Q Nc4 d7 Qb7 Bc6 Re8 Qc8 Qb6 d8R Rg5 Bd7 Nc6 Qb7 Nd4 Qd5 Qb7 Qe6 Qg2 Qc6 Qb2 Bd6 Rb8 a8R Rb7 Bc5 Ra7 Bd6 Ne7 g8Q Nd5 Bc5 Bd6 Qh8 Bf8 Qe6 Bd6 Rhe1 h1R Re5 Rb7 Ra7 h2 Raa8 Re1 Ra7 b4 Raa8 Bb5 Ra2 h1Q Nf8 Qhg2 Qh1 Rh5 Kg6 Qbc2 f7 Na3 Bc8 Ne2 Rca1 Ra7 Rd7 Bc4 Nh7 Nf6 f8B Qa8 Rd8 Ne4 f6 Qb1 Rg5 Bf4 f7 Bc1 Rdd5 Bd3 Bd7 Nc4 Bfd6 Ba3 f8Q Qc1 Kf7 Qb2 Rg6 Rg5 Rh6 Nf6 Rc1 Ne4 Rf5 Nd4 Rh5 Bf1 Rf3 Be2 Rd3 Re7+
N3RnBk/pnr3r1/2R2B1q/rbR5/2K2Qq1/1NpnQ2n/2N2R1Q/4b2N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 f5 Kd2 Kf7 Kc3 Kg7 g4 h5 b4 c5 e4 f3 g5 c4 d6 h3 e5 f2 d5 f4 e6 f3 b6 h4 g6 h2 b7 h3 b5 Qb6 e7 Nh6 e8R Qc7 d7 Qc6 d8N Ba3 b6 Qd7 d6 Qe7 d7 Qd6 Qe2 Qe6 Bb2 Nf7 Nd2 Nd6 Nc6 Rh5 d8N Nd7 b8Q Ra5 b7 Nf8 Nd4 Kh8 Qe3 Bd7 N2b3 Qg4 Nc2 Ba4 Ra2 Bc5 Be2 f1R Ne6 f2 Nc7 Rc1 Bd1 f1Q Ne2 Qf7 Ng3 Qh7 Ba1 Qh6 g7+ Kh7 Rg1 h1N g8R h2 Rg6 Nf2 Nh1 Nd3 Bf3 Bb6 Bd5 Kh8 Bg8 Bc5 Rf1 Ba3 Rf4 Bb4+ Kd4 Be1 Ra3 Ne4 Rc6 Nec5 Kd5+ Nb2 Rff6 Nbd3 Bd4 c3 Kc4 Rd1 Ra1 Rd2 Rd1 Rg2 Rd2 Rg3 Rdf2 Rg1 R2f5 Rg2 Rfe5 Rg1 Rf2 Rg2 Qd8 Rc8 b8Q Nb7 Na8 Rc7 Qdg5 Rg3 Qgf4 Rg2 Ng3 h1N Rec5+ Qhg7 Re2 Nhf2 Nh1 Nh3 Rf2 Rg3 Bf6 Rg1 Bg5 Qh6 Bh4 Qd1 Bf6+ Rgg7 Qd8 Qdh5 Qdd6 Q5g6 Qh2 Qg4+ Qdf4 Bb5+
n2q2QR/pR5b/k5NB/B1b1N2n/N3p3/1Qq2n1R/2b1K1B1/rr1Rn2N w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 c5 b4 Kc7 f4 Kb7 b6 h5 d6 e5 b5 e3 d5 c4 g5 e4 f5 c3 g6 h3 d7 e2 f6 h2 d6 c2 f7 h4 g7 h3 Bh6 c1Q Nc3 Nf6 g8Q Qa3 Qb3 Ne8 Na4 Nc6 Bg2 Nd4 Rd1 Rb8 Kf2 e1N Ne2 Be7 f8N Ndf3 Ng6 Nc7 Ng3 Na8 Ke2 Qa1 Qb1 Qc3 Qbb3 Qf8 d8B Bf5 d7 Bc5 Bc7 Qe7 d8R Qd6 Rf8 Qd8 Rf1 Rh7 Nh1 Rd7 Rd3 Rd5 Re3 Rd1 Rf7 Rb1 Rh7 Ra1 Rh8 Nd3 Rd1 Nde1 Ng3 h1N Red3 Nf2 Nh1 h2 Re3 Ng4 Red3 Nh4 Rh3 Nhf3 Nf8 Bh7 Ng6 Qd5 Bd8 Nf6 Bc7 Nh5 Bd8 Kc8 b7+ Kd7 b6 Kc6 Qc2 Kb5 Qb3+ Ka6 Bc7 Re8 b8R Qd8 b7 Re6 Ba5 Rb6 Rc8 Rb5 Rc7 Rb4 Ng3 h1B b8N+ Kb5 Nc6 Ka6 Nce5 Rb5 Rb7 Rb6 Qa3 Rbb1 Bf1 Bg2 Qab3 Bh1 Rh4 Bg2 Nh1 Bh3 Bg2 Be6 Rh3 Bf7 Qb4 Bb3 Qa3 Bc2 Qb4 Nh2 Qbb3 Nhf3
1B1r2rb/3n3K/1k1p1r2/1bbQN3/Rb1BR1Np/2NQn2B/rR1B1R2/5q2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 h5 Ke4 a5 b4 a4 f4 d6 c4 Kd7 g4 Kc7 c5 d3 c6 h3 g5 h4 f6 a3 f5 a2 f7 h2 g6 d2 g7 Ra6 f6 Kb6 c7 Ra7 Nf3 Bb7+ Kf5 e4 Kg6 e3 c8Q e2 Nc3 e1B Qe6 Ra4 Bh3 Nh6 g8N Ka7 b6+ Ka6 b5+ Ka5 Ne5 Nd7 Qd5 Bc6 b7 Bg7 b8B Nf5 f8B Ne3 f7 Kb6 Nf6 Ra8 Qc2 d1R Nfg4 Rg8 Kh7 Bh8 Qcd3 Qf6 Bd2 Qf1 Bg7 Bf2 Rg1 h1R f8R Rh2 Rf7 Be1 Rf2 Rb1 Rh1 Rb4 Rg1 Rf4 Rg3 Rf5 Rgf3 Rd8 Rf4 Rf6 Ra4 Rg8 Rb1 a1B Rbb4 Bb2 Rc4 Ba3 Re4 Kb7 b6 Bc5 Qa2 Bb5 Qad5+ Kc8 b7+ Kd8 Ba7 Kc7 b8R Rg2 Rb6 Rad8 Rb8 Ba6 Rb2 Bb5 Bb8+ Kb6 Bh6 Nc2 Bde3 Rh2 Bd4 Ne3 Ne2 Bb4 Nc3 Nd1 Bd2 Ne3 Rf3 Re2 Rf5 Re1 Rff4 Ra1 Rf2 Ra2
1N1RBN1Q/r1K3N1/Q1pr1k1b/q2r4/n6b/n3N1B1/2bQp1pR/2R2n1Q w - - 0 1 illegal: No possible last move
1RNNBBK1/r1p2R2/4Qrn1/3rRqQ1/b3B3/1NRp2B1/3pk3/b3bn1n w - - 0 1 illegal: No proof kernel
r1Q2B1R/2ppbq2/1Q2n3/2Qr1BnB/1Q2Rp2/1N1bBn1N/2Nrb1k1/4K3 w - - 0 1 illegal: No proof kernel
b1R1R3/1Nqn3k/1NNq1Q1b/R4p2/1B4B1/R3nQ1p/KprnrB2/3B3b w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 b5 Kd2 h5 Kc2 c5 Kb3 f5 g4 Kf7 e4 Kg6 a4 h4 e5 f3 a5 c4+ Ka2 h3 a6 f2 a7 c3 e6 c2 e7 Be6 e8R Rh6 Na3 Be7 Nc4 Qb6 d6 Bf6 d7 Qc5 d8Q Be5 d5 Rh7 d6 Bh8 d7 Qc7 Bd2 c1Q Ne2 Re7 Nd4 Bf6 Be2 f1N Nc6 Kh7 g6+ Kh8 g5 Bg7 Bg4 Qd6 Qf3 Bh6 g7+ Kh7 Be1 Bd5 Bf2 Re1 Qf6 Ne3 d8B Nd7 Ba5 Rc8 a8N Rc7 Nb6 Re2+ Qb2 Ngf6 g8R Rc8 Rg1 Ne4 Rg3 Nd2 Qf6 Qc3 Rgf8 Qce5 Rg8 Qc7 Rgf8 Be4 Nd6 Qe7 Nb7 b3+ Kb2 Qed6 Bb4 Bd5 Ra5 Be4 Ka3 b2 Rg8 b1B Kb2 Bbd3 Ka2 Ra8 Rc8 Bc2 Rge8 Bcd3 Qf4 Bh1 Qf3 Be4 Qg2 Nc2 Rga3 Ne3 Qf3 Qh2 Bc5 b4 Bf8 Qhd6 g6+ Kg8 g7 b3+ Ka1 b2+ Ka2 Kh7 Be7 Qg3 Bb4 Rb8 Qd8 Qgd6 g8B+ Kg6 Bb3 Kh7 Qf6 Ra8 R5a4 Ra5 Bd1 Rc5 Raa8 Rc2 R8a5 Qg3 Nbd8 Bg2 Nb8 Ba8 Nbc6 Qgd6 Nb7 Bh1
n1qb4/1bB1QR2/nQ4RQ/b2p1Q2/1q1p2RK/N2Nn2p/4Rr2/k1r1NB2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 Kf7 c4 Kf6 f4 h5 Kf2 a5 g4 d5 c5 e5 b6 e4 g5+ Ke7 c6 Kd6 c7 a4 f6 a3 f5 Ke5 b5 a2 g6 h3 Kg3 e3 g7 e2 f7 e1N b7 h2 b6 Bb4 f8Q Ne7 g8R Bd2 f6 Na6 b8Q Bg5 b7 Nc2 f7 Ne3 Qe1 Ke4 Na3 Bf6 Rb1 a1B Rg6 Bc3 Rb2 Ba5 Qh6 Rf8 Re2 Kd3 Nf3 Bg5 Rg1 h1Q Qb4 Bf6 Qb6 Kc3 Ne1 Qe4 Rgg2 Qb1 Q8a7 Qb4 b8N Bb7 Nd7 Nc8 Nc5 h4+ Kh3 Qe8 R2g4 Bd8 Ncd3 Kb3 Bd2 Ka2 Bc1+ Ka1 Bd2 Nd6 c8Q Nb5 Qf5 Nbc7 Bc1 Rc8 Bd2 Nd1 Bf4 Na8 Bb8 Rc1 Bc7 Rg8 f8R Ne3 Rf7 Rf8 Qd6 Qc6 Qb6 Qd7 Qe7 Qc8 Kh2 h3 Kg3 Rh8 Kh4 Re8 Qef6 Re4 Qf6g5 Rf4 Qe7 Rf2
3BR1R1/nk1B4/1bq1R2n/pN1pQ1Kb/Nn6/4rN1B/1rpr1Nq1/2B3Q1 w - - 0 1 illegal: No proof kernel
NR6/rQ2bn1n/1p1kb1Rq/BKR1RQN1/1p1r1p2/B1BB3N/6n1/r6q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 e4 f5 Ke2 c5 Kd3 g5 Kc4 g4 a4 g3 d4 f3 h6 f4 h5 g2 a5 f2 e5 Rh7 e6 Na6 d6+ Kf6 e7 Ke6 e8R+ Kd7 d5 Ra7 Qf3 Rf7 h7 Rf6 h8B Rg6 h6 Ne7 h7 Rh6 Bd3 f1Q Nc3 Qb6 Nh3 g1R Ne4 Nf5 Re5 Qd1 Neg5 Be7 Ba3 Nc7 a6 Nh4 Rc1 Ne8 Qg4+ Re6 Qf5 Nf6 Rh2 Rh1 Rg2 Qg1 Rg3 Ng2 Bg7 Qf1 h8Q Nh7 Bf6 Qd1 Qg7 Qh5 Rc2 Ra1 Rg4 Qh6 Rg3 Qc7 Kb5 c4 Qf7 c3 Rc1 Kd8 d7 c2 Rg4 Qc3 Bg7 Kc7 d8R Qe1 d6+ Kb8 d7 Kc7 Rf8 Qh1 d8B+ Kd6 Ba5 b6 Rg3 Rg6 Re8 Be6 Rb8 Rf6 Rg4 Rg6 Bf6 Rg7 Rg3 Rd7 a7 Rd8 a8N Rd7 Rce1 c1N Rc5 Ra7 Ree5 Rg8 Nf3 Rd8 Rg6 Rdd7 Nfg5 Rd8 Bc2 Nd3 Bh8 Nde1 Bd3 Nf3 Qg8 Rdd7 Qc8 Rd8 Qb7 Rd7 Re3 Ne5 Bf6 Nf7 Bc3 Rc7 Rce5 Rc4 Rc5 Rd4 Re2 Ra6 Ree5 Ra7
4K2n/2N1pb1k/Q3n1qb/RBq1b3/3rr1RQ/qpN1pR2/7B/1QQ2R1N w - - 0 1 illegal: No possible last move, all moves rejected
1bQB1BQ1/1K1pNqpR/2Q3q1/1R1n1B2/Q3br2/rRq2k2/1pN1R3/1rn5 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 b5 f4 b3 a4 d3 c4 b4 h6 d2 h7 b2 f6 b3 h5 Ra7 f7 Nh6 f5 Ba6 a5 Nc6 f6 Qe8 Kb6 e5 c5 Nb4 c6 Qd8+ c7 Ng4 h6 Bb5 a6 Bc6 Rh2 Ne3 Na3 b1Q Ne2 b2 Nf4 Nd3 Re2 Nc5 Ng6 Qc2 Ne7 Ba8 Bh3 Qb1 Bf5+ Kf3 Nc2 e4 Ra3 Qa2 Rb3 Qe8 c8Q Rg8 h8R Nd3 h7 Bb7 Kc7 Nd5+ Kb8 e3 Rb5 Nc3 Kc7 Ra8 a7 Be4 Rb3 Nd5+ Kb7 Kf4 Qh1 d1R Bd2 Rg1 Ba5 Rb1 Bd8 Nc1 Qd1 Kf3 Qd4 Qa3 Qa4 Qd6 Qcc6 Qg3 Qc8 Qg6 Qcc6 Rc8 a8Q Rb8+ Ka6 Rb4 Qac8 Rc4 Kb7 Rc3 Rb5 Ra3 Rb3 Nf4 Nd5 Bc5 f8Q Ba7 f7 Bb8 Rb5 Qee6 Ne7 Nd5 Qe8 Rf8 Rg8 Qd6 h8R Qde6 Rh5 Qef6 Rb3 Qe6 Rgh8 Qef6 R8h7 Qc3 Rg2 e2 Rhg5 e1Q Re2 Qf1 Rgh5 Rh8 Qg8 Qf2 f8B Qf1 Rg5 Qf2 Rh2 Rh4 Rh1 Rg4 Rh7 Rf4 Re1 Nb6 Re2 Rg4 Be6 Kg3 Qd4 Qff7 Rgb5 Nd5 Bf5 Kf3 Qa4 Rf4
qBk2r1B/1pNn1R2/6b1/n2N1p2/Q1R1B2R/1B1pb1rr/q1Q3Q1/3QK2b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 h4 f5 c4 g5 e4 d5 a4 Kd7 h6 g4 a5 b3 h5 g3 e6+ Kc7 c5 g2 c6 d3 a6 d4 a7 b2 e7 Be6 e8Q Qd7 h7 Ne7 e5 Bb3 e6 Ba4 h6 Ng8 e7 Qc8 Bf4+ Kb6 c7 Bb3 Nh3 g1R Ra4 Qd7 c8Q Bc2 Ng5 Rg2 Rh4 Rg3 Bg2 Qd8 Rc4 Nc6 Be4 Nf6 Ne6 Na5 Qa4 Nd7 e8B Bc5 Nc3 b1Q Nc7 Qa2 Bf7 Rb8 a8Q d2+ Kf2 Rf8 h8R d3+ Kf1 Be3 h7 Bb3 Rg8 Rh3 Rg7 Rg8 h8B Qf8 Rc5 Bd5 Rc4 Qfa3 Rgh7 Rgg3 Qac2 Qa4 Qg8 Rf8 Be6 Bc6 Rf7 Q4a3 Qe8 Qa4 N3d5+ Ka7 Qf3 d1B Ke1 Be2 Qg2 Bh5 Qg4 Bg6 Qgd1 Q4a3 Qe7 Kb8 Qb4 Kc8 Qba4 Qb1 Na6 Qaa2 Bb8 Qb6 Nac7 Qa7 Rb4 Qa6 Rc4 Qa8 Nb6+ Kd8 Rb4 Bg5 Qh2 Bc1 Bf3 Bh7 Bb3 Bh6 Rbc4 Be3 Qhe2 Be4 Nbd5 Bg6 Bh1 Bg2 Qf3 Kc8 Qff2 Bf1 Be4 Bg2 Qfe2 Bh1 Qg4 Rf3 Qgg2 Rfg3
2B2q1n/Rp1p1Q2/1Q3rq1/rNN2b1r/5B2/2K1RN2/1p1q2BR/b1k1nRN1 w - - 0 1 illegal: No proof kernel forced: wxLB
q2bnQ2/pB1R3R/2bN1rN1/K5N1/1BrBB1Q1/pbrpR2n/k1N5/q7 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 bxa4 Kd2 Kf7 b4 e5 h4 g5 f4 d5 c4 e4 b5 g4 f6 Ke6 f7 g3 f5+ Kd6 f6 Kc5 h6 Kb4 h7 d3 b6 d4 h5 g2 b7 Qc7 c5 Qd6 h6 Qb6 c6 Qb5 c7 Na6 b8R Qb7 Nf3 g1Q Bg2 Ne7 Ra3 Nd5 Bb2 Be7 f8Q Nf4 f7 Nh3 Ng5 Bd7 c8B Nc7 Qg4 Ne8 Bc3+ Kc4 Bb4 Bd8 Rb3 Qd5 Rb7 Bc6 Rd7 Qf1 Bb7 Rc8 Rh2 Rg8 h8B Rg6 h7 Rf6 Bg7 Rc7 h8N a3 Ng6 Qh1 Nc3 Qa1 Nb5 Rc8 Rb1 Rc7 Re1 Kb3 Re3 Ka2 Nd6 Rc8 Qe7 Rc7 f8N Qg8 Nfe6 Qh8 Qf8 Qg8 Qd1 Qh8 Ke1 d2+ Ke2 Qg8 Qg1 d1B+ Kd2 d3 Nd4 Bb3 Nc2 Rf1 Bb2 Rf6 Kc3 Qd5 Bh1 Rc8 Qg4 Rc7 Rg3 e3 Be4 e2 Re3 e1R Rh1 Rc1 Rh2 Nf4 Rhh7 Qg8 Ba5 Qh8 Kb4 Nh3 Bd4 Rc8 Ne1 Rc3 Nc2 Bcd5 Kb5 R8c4 Bb4 Bc6+ Ka6 Nc7+ Ka5 Ne8+ Rc7 Qg8 Rd7 Qe6 Rh7 Qc8 Rd7 Qa8 Rh7 Be7 Rd7 Bd8+
1qB1br1b/2B2R1K/1Qb5/1N5k/1n1p3p/NBQ1Bpb1/2bQ1N2/1r1NR1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 f5 c4 Kf7 e4 Kg6 g4 h5 b4 a5 c5 h4 e5 d3 b6 d4 b5 d2 b7 a4 b6 a3 e6 a2 e7 Qe8 c6 Rh5 c7 Qf7 e8N Rh7 Bc4 Nh6 Bb3 Be7 Ne2 Rg7 Re1 Qf6 Nec3 Nd7 b8Q Qf8 b7 Nc5 Na3 Bf6 Nd6 Nf7 Ndb5 Bd7 c8B Be8 Qc7 Rg8 b8B Bh8 Qb6+ Qd6 Qc2 Nd3 Nd1 Rf8 Bc7 Rb8 Qc3 Rb7 Rb1 a1B Re7 Nd8 Rf7 Nc6 Kg2 f3+ Kh3 Bb2 Ra1 f2 Rb1 f4 Ra1 Bg7 Rb1 Kh7 g6+ Kh6 g5+ Kh5 Ra1 Bh8 g7 Qb4 g8N Nce5 g6 Nf3 g7 Rb8 Nh6 Ng1+ Kh2 f1B g8Q f3 Qg2 Rb7 Ng4 Bc6 Ngf2 Rb8 Ne3 d1B Bd2 Bc2 Re1 Be8 Ned1 Bc1 Be3 Bc6 Ne4 Rb7 Qgd2 Bh3 Nef2 Bhd7 Bcf4 Be8 Bg3 Ne2 Kh3 Qd6 Bh2 Qb8 Bhf4 Kg6 Kg4 Ng1 Nb1 Ba3 Bc7 Bd6 N1a3 Bf4 Qa6 Kh6 Kf5 Kh5 Qa7 Bg3 Qb6 Ra7 Nb1 Ra1 N1a3 Bhe5 Nc4 Rb1 Nca3 Bd6 Kf6 Bdf4 Kg7 Be5+ Kh7 Bg7 Ba4 Bh8 Bb3 Nb4+
b3R2K/3Nr1Rb/b1b5/1BB4n/Q1p2p2/bpQ1qBr1/1RN1R2N/1nk3N1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kc5 a4 h5 d4+ Kb6 g4 Ka5 g6 f5 g5 c5 d6 b5 g7 h4 d7 b3 d5 Kb4 g6 f3 a5 b2 d6 f4 a6 f2 a7 h3 Be3 h2 Ra2 Ne7 Kf6 Na6 g8R Qb6 d8N Rh5 g7 Nc7 e5 Bd7 e6 Nc6 e7 Rh3 e8R Nd4 Na3 Kc3 Qa4 b1B Nc2 b4 Nf7 b3 Rb2 Nf5 Ng5 Bc6 d7 Nb5 d8Q Ng3 Qc8 Na3 Bb5 f1B N5f3 Nh5+ Kf7 Rb8 a8B Rb7+ Kg6 Be7 Kh7 Rg3 Kh8 Bd6 Qh3 Re7 Bf2 Bd3 Qc8 Bh7 Qh3 c4 Bc5 Bf5 Bb7 Bc8 Ba8 Ba6 Bb7 Rf7 Re2 Re7 Re8 Qa7 g8N Kd3 Nf6 Kc3 Nce1 Bh7 Nd7 Nb1 Nc2 Qb6 Nfe5 Qa7 Ng4 Kd3 Re5 Kd2 Re2+ Kc1 Ba8 Rg2 Qc3 Rg3 Bb7 Bg2 Bf3 Qb6 Bd4 Ba3 Bf2 Qe6 Bc5 Qe3 Nh3+ Bf1 Rg1 h1B Nh2 Bg2 Bg4 Ba8 Bf3 Rg4 Rg3 Bg2 Ng1 Rg6 Bg4 Bgc6 Bf3 Rf6 Rgg8 Rg6 Rg7 Rg3
3Q2Q1/2b3r1/BBp4N/p1Q3pN/3Q1q1r/R2Kn1RB/r1bB1Nn1/rk1r4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 d4 Kd6 Kd2 a5 e4 g5 h4 f5 e5+ Kd7 d6 Ke6 d7 Kd5 h5 Ke4 e6 f3 e7 g3 e8B c6 h6 f2 b6 g2 b5 f4 b7 f3 d5 Bc5 d6 Ba7 h7 Bc5 b6 Ne7 Rh3 Ra6 Ne2 g1R Ra3 Ra7 Rg3 Rg2 Nf4 Nf5 Nh5 Qf6 d8Q Ne3 d7 Qf4 Ba6 Bd6 Nc3+ Kd4 Bf7 Bc7 Ne4 f1R+ Nf2 Rh2 Be6 Ng2+ Re3 Rh4 Bh3 Re8 h8N Re7 Nd3 f2 Nf7 Re4 Ke2 Kc3 Nh6 Ra4 Qe7 Rg1 d8B Nd7 b8Q f1R b7 Nb6 Qc5+ Nc4 Ref3 Bf5 Nf2+ Ne3 Qdd6 Kc2 Bd2 Kb1 Qdd4 Ng2 Ra3 Rd1 Qa8 Nce3 b8Q+ Rb7 Qc8 Be4 Qe6 Bc2 Qg8 Be5 Bb6 Rg7 Qad8 Bc7 Rd3 Ra2 Ra3 Rh1 Q4d6 Kb2 Qd3 Rda1 Qdc3+ Kb1 Q3d4 Bb3 Kd3 Rd1 Bb7 Ba4 Ba6 Bc2+
Qn1N3N/1p1BKN2/1p1RbRRQ/nn2r3/1B1Q1r1b/4Q3/pn5k/n2Rq3 w - - 0 1 illegal: No proof kernel
2nNB1B1/1n1b2Rr/8/3RN3/1K1N2bB/4QQbp/pp3RN1/nkq2Bbr w - - 0 1 illegal: No proof kernel
1Bb1R3/2N2q2/1nK5/Qb5N/bRQ2rpN/b1rp1B1r/2NQpn1k/3BB3 w - - 0 1 illegal: No possible last move, all moves rejected
b1r1r1QR/2NnB2N/1b1r1R2/5q2/b1BrpR2/4p1Q1/NR2KB1p/kn2N3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 f4 e5 b4 a5 b6 c5 b5 h5 g5+ Kf5 b7 h3 d6 c4 b6 c3 g6 a4 d5 h4 g7 h2 d7 a3 d6 c2 Be3 c1R Nc3 h3 Nf3 a2 Bc4 Qf6 d8R Rh6 d7 Bc5 Ke2 Ne7 g8Q Nd5 Rf1 h1B Ne1 h2 Bf2 e3 Rf8 Bg2 d8B Nd7 Rb1 a1R b8R R1a4 b7 Bb6 Na2 Ke4 Be7 Qf5 Rb2 Rd6 Rf6 Rb4 Qa4 Kd4 Qc6 Be4 Qc7 Bc2 Qg3 e4 Qd8 Ba4 Qdg8 Ra6 Ra8 Rc3 b8N Bb7 Qf8 Ra5 Na6 Bbc6 Re8 Ba8 Qfg8 Rc5 Rb8 Rc8 Nc7 Re8 Rd8 Qg6 f5 Qh7 Re6 Qh3 f6 Qf5 f7 Rc1 Bd3 Rbc4 f8N Rd1 Na6 Rc8 Bc4 Rd3 Nh7 Rd1 Nc1 Kc3 Nc7 Rd4 Rh6 Nb4 Rf6 Nc2 Bg1 Na3 Rf4 Nb1 Bf2 Bc2 Rb4 Bb3 Na2+ Kb2 Rb5 Ka1 Rb4 Ba4 Rb2 Rf8 Q8g7 Rf7 Rh8 Rff8 Qg8 Rfe8
b1r3bQ/3Rn1NN/r1R2B1q/1k1N1RNB/1pp1Q2n/2b2b2/2K1p3/1n3Q1R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 e5 f4 b5 g4 h5 a4 c5 a5 e4 a6 c4 g5 h3 d6 Kc6 f6 b3 a7 b4 f5 h2 g6 b2 d5+ Kb5 d7 e3+ Kc2 h4 f7 h3 f6 Rh6 d6 Qa5 d8N Nc6 g7 Ne5 d7 Ng4 Nc3+ Kb6 Nf3 b1N Nd5+ Ka6 Bb2 Rh5 Ng5 Ne7 g8Q Rh8 Be2 Bg7 f8N Ne5 f7 Nf3 Bf6 Kb5 Qf1 Nh4 Nde6 Qb6 Bh5 e2 Nfh7 Bb7 Qb8 Rc8 d8R Qc6 f8R Qa6 Nb6 Bd5 Rd7 Bh8 Ng7 Bg8 Nd5+ Qb6 Rg1 h1B Ra6 Bf3 Rh1 h2 Qe5 Qe6 Qe4 Qh3 Rc6 Qe6 Rg1 h1B Rf7 Bhg2 Rh1 Qh3 Bb2 Qe6 Rf5 Qh6 Bd4 Rab8 a8Q Rb6 N7e6 Bf6 Ng7 Ra6 Bb2 Bc3 Ba1 Be1 Be5 Bc3 Bf6 Rc7 Qd8 Rc8 Qf8 Bf7 Qh8 Bg8 Rh3 Bh1 Rh2 Bhg2 Rh1 Bd4 Qe6 Ba1 Rcd6 Bc3 Nf4+ Bd5 Qe5 Bf3 Qe4 Ka4 Rb6 Ba8 Nd5 Ka5 Rc6 Kb5
5r2/KB1QQ3/N1Q1B3/3N2pp/QRbq1r2/B1N1p3/1Rnnr2k/b1N2nn1 w - - 0 1 illegal: No proof kernel
N1k5/qN3r2/2n2NK1/RpnBQ2Q/3p3p/Nn1rB1b1/n1B1b3/R1R1Rb2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 b5 Kd3 d5 a4 Kd7 g4 e5 c4 h5 f4 h4 a5 b3 f6 b2 f5 Qe7 c5 Kc7 g6 Kd7 f7 Qe6 c6+ Kd8 f6 Nd7 g7 Bb4 f8Q+ Qe8 f7 Bb7 c7+ Kc8 g5 Rh5 a6 Nh6 g8B Ng4 a7 Rh7 g6 Bd6 Na3 b1N g7 Nd2 Nh3 Nb3 Nf2 Qd8 Qe7 e4+ Ke2 e3 Kf3 d3 f8R d4+ Ne4 d2 Bd3 e2 Bd5 Be5 g8N Bg3 Ngf6 Ndc5 Qe5 Rf7 Re1 Bc6 Rh8 Qf8 Rh7 Qe7 Bc2 Bd7 Ng5 Bf5 Ne6 Bd3 Nd8 Qd7 Nb7 Qe7 Kg2 Bc4 Kh3 Bd3 Rg1 e1N Qde2 d1B Be3 Bc4 Rh6 Ned3 Re1 Nb4 Rg6 Nh2 Q2h5 Nf3 Kg4 Bde2 Kf5 Na2 Rh6 Bf1 Kg6 Bce2 Rh7 Ng5 Rg7 Nge6 Rg8+ Nd8 Re8 Rb8 a8N Qd7 Re6 Qe7 Ra6 Nc6 Nd8 Rb6 Ra7 Ra6 Nb7 Ra4 Ra6 Rc4 Ra5 Rc3 Ng8 Kd7 c8R Rd3 Rec1 Ne6 Re8 Qc5 Re7+ Kc8 Nf6 Qa7 Qeg5 Nc3 Bf2 Nec5 Re3 Bd1 Re1 Bde2 Be3 Na2 Qf5+ Rd7 Qe5 Rf7
2Nr4/2BB1Q2/Nb5p/1r2BNR1/1Rpn3R/b2pR1K1/rr1N1Qb1/k1n1q3 w - - 0 1 illegal: No proof kernel
3RK2r/1n6/1N4np/p1QB1qB1/1Qr4R/1Q1RbnQ1/1pb1k1B1/NbbR4 w - - 0 1 illegal: No proof kernel
R1N3Q1/KRQrbr1q/1N1N1bp1/2R5/2BQpnn1/1b1R4/1B3n1p/Nk1n4 w - - 0 1 illegal: No proof kernel
1R2Rq2/k4n2/1N2NpQN/p1B5/Q1Kp1b1n/R2nN2R/2nr1r1Q/3b1Bb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 Kd3 a5 b4 d5 e4 Kd7 c4 Kc7 h4 Kb6 c5+ Kb7 c6+ Ka7 c7 f3 e5 g4 b6+ Kb7 e6 g3 e7 g2 e8Q f6 h6 f2 h7 Bh3 c8N Qd6 h5 Qc5 b5 Qc6 h6 Na6 Nf3 g1B Nbd2 Bg4 Qg6 Qe8 Ba3 Bd6 Nc4 Bf4 Bc5 Qf8 Ra3 Ra7 Rh3 Nb4+ Ke2 Ra8 Qa4 Nc2 Ne3 d3+ Kd2 d4 Ng5 Bd1 Ne6 Kb8 b7 Ra7 Kc1 d2+ Kb2 Ra6 Kb3 Rc6 Nb6 Ka7 b8R Rc7 Be2 f1N Re8 Ng3 Bf1 Nf5 Kc4 Nh4 Qh5 Ne7 Qg6 Rg8 h8Q Nc6 h7 Nd8 Qhg7 Nf7 h8N Rc8 Qg2 Rc7 Qh2 Rc6 Qh6 Rg2 Qg7 Rf2 Qg6 Ng5 Nf7 Rc7 Nh6 Nf7 Ng2 Re7 Ng5 Re3 Ne6 Rd3 Ne3 Bg4 Qh7 d1N Qg6 Rdd2 Nd7+ Kb7 b6 Ka6 b7 Nb2+ Kb3+ Nd3 b8R Bd1 Nb6 Ka7 Kc4 Bf3 Neg4 Be2 Ne3 Bd1
2Q5/2q1N3/pbb1n3/Q1p1nRNn/Bb1r2R1/r6B/1p3KRR/1k1Nb1BN w - - 0 1 illegal: No proof kernel
2bnn3/3rpnbB/1B5k/q1R3N1/K1NBRn1N/2p1R3/1NQBp1r1/1Q1r4 w - - 0 1 illegal: No possible last move, all moves rejected
R7/r1pbk3/Rqn2N2/nR1r4/5Bpn/4rBNB/QpQ1NK1B/N1n1b3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 g5 a4 b5 f4 e5 d4 g3 a5 b3 a6 b4 a7 g2 f6 b2 d6 e4 f5 b3 d7+ Kf7 d5 g4 h5 e3 h6 e2 h7 Bg7 d6 Kf8 f7 Be5 Kf2 e1N Nd2 b1R Ra6 b2 Ne2 g1N Ng3 Qe7 d8Q+ Qe8 d7 Nh6 Rh5 Ra1 Bh3 Ng8 Qc2 Ne2 Nb3 Ng2 Bf4 Rg1 Na1 Kg7 f8B+ Kf7 f6 Re1 Bd6 Bc3 Rb5 Ke6 f7 Nc1 f8N+ Kf7 Qg5 Re3 d8R Nc6 Nd7 Nge7 Nf6 Bd7 Qd5+ Kf8 Bde5 Nh4 Qa2 Na5 Rc8 Rg8 h8N Rg5 Rcb8 Nec6 Ng6+ Kg7 Bd6 Qe6 Rg8+ Kf7 Rc8 Rb8 a8B Rb7 Re8 Ra7 Bb7 Nd8 Bf3 Ndc6 Ra8 Rge5 Bg5 Rc5 Nf4 Rd5 Nfe2 Bd2 Be5 Ke7 Bgf4 Bc3 Nf1 Bb4 Bh2 Qd6 Bef4 Qc5 Nfg3 Qb6 Bfg2 Bc3 Bf3 Be1+
1Rq2N2/2p5/kr1b4/rbQ2Qp1/rnp2Q2/2NRn3/B1rb1BN1/Q1B1K2N w - - 0 1 illegal: No possible last move
Br4Q1/R3r1KR/n7/3Q2nN/3p3N/NR1rr3/1NpB1p1q/1qB1bkBb w - - 0 1 illegal: No proof kernel
QN2N1n1/Q4nq1/Q1pBq1b1/2n2kB1/2K2bp1/2B3pN/B1R1R1r1/2rQ1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 f5 Kd3 g5 h4 a5 b4 c6 e4 a4 d6 Ke6 d5+ Ke5 b6 a3 b5 g3 h5 f3 d7 a2 d6 f2 b7 f4 h6 f3 b6 g4 h7 Qe8 d8B Ra5 d7 Nf6 Nc3 Nh5 Ba3 Bg7 Bd6+ Ke6 e5 Ra8 Nd5 Qe7 Kc4 Qf7 Nh3 Kf5 e6 Na6 b8Q Nc5 b7 Bh6 e7 Qe6 e8Q Bf4 Rc1 a1Q Qa7 Qg7 b8N Nf6 Rc2 Ng8 Bg2 f1N Rh2 f2 Bg5 Na4 d8Q Nc5 Qdb6 Nd2+ Kb4 f1N Nf6 Nde4 Qba6 Bd7 Bh1 Bc8 Rhe2 Bd7 Qd8 Be8 Bg2 Bg6 Ne8 Nef6 Qdc8 Nfd7 Bd5 Ne5 Kc3 Nf7+ Kc4 Ngh6 Qd8 Rf8 h8B Ng8 Qac7 Ra7 Qcb6 Rb7 Qba7 Rb1 Qda5 Rc1 Qa8 Qh7 Bc3 Qg7 Q6a7 Ngh6 Q5a6 Rh8 Kb4 Ng8 Ba2 Rh4 Nf2 Rh2 Nh3 Qef6 Kc4 Rg2 Qb5 Qe5 Qba6 Qe6+
5Qr1/1k1N4/1pN5/3RnRrp/1B1NbKBQ/2nb1Q1p/6Nb/q2QbBq1 w - - 0 1 illegal: No possible last move
3KBr2/5N1r/1p1b3n/1Q2pbBn/RN1nn1k1/B2Nq3/NB4p1/q1Q1Q2R w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 c5 Kc4 e5 Kb5 g5 d4 b6 a4 b3 h4 b2 f4 c4 d6 c3 h5 c2 d5 g3 f6 g2 h6 g4 f5 g3 f7 Rh7 a5 Be7 f8B Rg7 a6 Rg6 a7 Bb7 f6 Bc8 f7 Bb7 h7 Bg5 h8N Nf6 Qe1 Rh6 Nc3 b1N Ra4 Nh7 Bb2 c1Q Nh3 g1N Nf4 g2 Na2 Qe3 Nd3 Bf6 Be2 Nc6 Bh5 Rb8 a8Q Nh3 Qaa5 Nd2 Qc1 Ne4 Qae1 Qe8 Be7 Qc8 f8B Nf4 Nf7 Nhg5 Bg6 Rh7 Bh6 Nf3 Bg5 Nd8 Bf8 Qc3 Bh5 Kc8 d7+ Kc7 Bfa3 Bc8 Bg6 Be7 Bh5 Bd6 Bg6 Nc6 d8N Ne7 Nc6 Kd7 Ncb4 Ng8 Bh5 Nh6 Bg6 Bf8 d6 Ke6 d7 Bd6 d8Q Nh5 Qc7 Bd7+ Qc6 Rf8 Ka6 Nd4 Kb7 Ng7 Bh5 Kf5 Bg6+ Kg4 Qb5 Bc5 Kc7 Bf5 Bf6 Nh5 Be7 Rfh8 Bg5 Bf8+ Kd8 Rg8 Nh8 Bd6+ Be8 Rf8 Nf7 Bc8 Qed2 Bf5 Qce1 Qc1 Qc3 Qb1 Qcc1 Qa1
2bK4/BNp1q1p1/k2bQ1BR/qNp1R1b1/3n4/1Q2rQN1/n2b3R/3Q1R1r w - - 0 1 illegal: No possible last move, all moves rejected
2N1b2b/1p1Rr2b/2pR2B1/2K2Q2/R2p1n1Q/b1Q1B2B/QnNqkq2/1B4r1 w - - 0 1 illegal: No possible last move
1Kn1BR2/3Q1N2/2p2b1R/2bpBbNn/1NB1Q1rk/B1Q2qrN/p5p1/7n w - - 0 1 illegal: No proof kernel
B4nb1/2pr2KQ/4Nn1B/2qN3Q/Rp2Br2/2Q1rpkB/5bpN/3R1Qn1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 b5 d4 g5 a4 g4 h4 g3 h6 b3 a5 b2 h5 b4 h7 f6 h6 f3 a6 f2 a7 Be7 Ra4 Qe8 Bh3 f1N Nc3 b1R Nf3 g2 Nh2 Nd7 Kf5 Bd8 e4 Ra1 e5+ Ke7 e6 Kd6 e7 Ra3 Qh5 Nd2 Rd1 Qf8 Kg6 f5 e8B Ndf6 Bc6 Rb8 a8B Nf3 Bd2 f4 Be3 Qe8+ Kg7 Ne7 Bcb7 Rf8 h8Q Ng1 h7 f3 Bh6 Be6 Qg8 Ra2 h8Q Ra3 Qgh7 Qb5 Bc6 Qc5 Bcb7 Kd7 d6 Ng6 Be4 Be7 Nd5 Re3 Ng4 Bg8 Nh2+ Kd8 d7 Bd6 Nc3 Ke7 d8N Bg3 d5 Bf2 Ne6 Kd7 d6 Rfd8 Ra7 Nf8 Nd5 Rbc8 Rb7 Kc6 d7 Kd6 Ra7 Rb8 Ra4 Rb6 Qg4 Ke5 Qh4 Rd6 Qg4 Rb8 d8Q Rb5 Qgg6 Rd7+ Qf7 Ra5 Qc8 Rb5 Qa6 Rb6 Qf1 Rbd6 Nb6 Rd4 Nd5 Rc4 Bc2 Rh4 Be4 Rf4 Bg5 Ne8+ Kh6+ Rf6+ Qfg6 Kd6 Q8g7 Rf5 Qb2 Nf6 Qc1 Ke5 Qh5 Rd6 Kg7 Rd7+ Ne7 Bh4 Bh6 Bf2 Ng5 Kf4 Ne6+ Kg3 Qc3 Rd6 Nd5 Rf4 Qhe5 Rd8 Qh5 Rd7+
R2QB2Q/1B1Nqq1N/N3kbbp/2ppp3/1Br1Rnn1/NK1R4/2q5/r6B w - - 0 1 illegal: No proof kernel
k4bN1/1r1b2p1/6Q1/q3prqn/p2N1qpB/2R1R2B/1QQ4R/N1K1n1RN w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 b4 Kd7 h4 c5 d4 Kc7 Kd2 Kb7 f4 a5 d6 e5 h5 a4 d5 c4 h6 Qc7 h7 Qc5 f5 Ra5 d7 Qe7 d8N+ Ka7 d6 Qe6 f6 Ra6 b6+ Ka8 b5 Nh6 d7 Qe8 f7 Qe6 b7+ Ka7 Ra3 Rb6 Qc2 Rg8 h8R Nc6 b8N Ne7 Rc3 Nef5 Ndc6+ Ka8 d8Q Nd6 Qe8 Bb7 Nd4 Be7 f8R Ndf5 Na3 Qf6 Nh3 Ne3 Qg6 Ng2 Nd7+ Bc8 Nf2 Rb7 b6 Nf5 Rg1 Ne1 Bh3 Ng3 Nh1 e3+ Kd1 Qh4 Rf3 Bf8 Nf6 e2+ Kd2 Qg5+ Rfe3 Nh5 Rh7 Rh8 Ng8 Rf7 Rh6 Rf5 Rh7 Bd7 b7+ Kb8 Qd1 Ka7 Nac2 Kb8 Na1 Ka7 Rd3 Kb8 Ba3 c3+ Kc1 c2 Be7 Qf4 Bh4 Qg5 Rc3 Ka7 Kb2 c1Q+ Ka2 Qd2+ Qc2 Kb8 Kb2 Ka7 Re4 Qdf4 Kb1 Nd3 Re3 e1Q+ Qc1 Qd2 Qc2 Ne1 Rh6 Qg2 Kc1 Qd5 Nf6 Qa5 b8Q+ Ka6 Qbb1 Ka7 Ng8 Ka8 Qbb2 Be7 Nf6 Rb8 Ng8 Rb7 Bf1 Bb5 Bg3 Nf6 Rh2 Bd7 Bh4 Bf8 Bh3 Nh5
Q1R1B1k1/BQ3p2/r1R1r3/N3pN1n/1q3B2/rpRn1pbb/N2rB1N1/6K1 w - - 0 1 illegal: No proof kernel
N2Q2B1/1pN1brQ1/3pQB1b/1N1RB1Q1/r3np2/1R2Kpb1/k3b3/2nNq3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 c5 dxc5 exf4 Kf2 Ke7 h4 Ke6 c4 g5 e4 f5 a4 d6 h5 f3 a6 g3+ Ke3 g2 h6 g4 c6 g3 a7 Nd7 e5 Qe7 h7 Qh4 c7 Nb6 c5 Rb8 a8Q Be7 c6 Nh6 a5 Qb4 a6 Qg4 a7 Qh4 Ra3 Qf6 Nc3 Na4 Qd2 Qh4 Rb3 Nf7 Nd1 Nc5 Ne2 Bd7 c8Q Ne4 c7 Rf8 Qd8 Bb5 Nd4+ Kd5 c8Q Be2 e6 Ne5 h8B Nd3 Be5 Rf7 Bb2 Nc1 Qcd7 Kc4 Nb5 Rc8 Qb8 Rc6 a8N Ra6 Qg8 Ra2 Qbd8 Ra4 Rg1 Qh1 Qg7 Qh4 Bf6 Qh1 Bbe5 Qh4 Rh1 g1B+ Nf2 Bh2 Nd1 g2 Q7e8 Bf8 e7 Qe1 Qed7 Bg3 e8N Be7 Nec7 Nf2 Q7c8 g1B Rh4+ Kc5 Rd4 Ne4+ Nf2 B1h2 Rd5+ Kc4 Qcd7 Bh4 Nd1 B2g3 Qe6 Bf8 Qg4 Be7 Qb2 Bg5+ Qf4 Bh6 Qg5 Ra7 Bh3 Ra5 Bg4 Ra4 Bh5 Qb4 Bg6 Qe1 Bh7 Rf8 Rbd3 Rf7 Bh8 Bg7 Bd4 Ra7 Bg8 Bh6 Qa1 Ra5 Bc3 Kb3 Bcg7+ Kc2 Rb3 Ra4 Qaf6 Rc4 Qg6 Ra4 Bb2 Kb1 Bbe5+ Ka2 Bhf6 Bh4 Qh7 Bg3 Qg7 f4+
1n5k/R1Np1Qn1/1R1Q2r1/p6b/QrQ4B/Bp3Bp1/1pnN1B2/bq2R1K1 w - - 0 1 illegal: No proof kernel
1N1n4/n2q4/1R2B2p/b1b1N1n1/rrnR2B1/2R1RB1B/2rn4/1kBKB1Q1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b6 a5 b3 a4 Rh2 a3 Rh3 Bd7 Rh1 Ba4 bxa4 Bh6 Ra2 Bg7 Ra1 Bf8 d4 Kd7 e4 Kd6 g4 f5 a5 c5 a6 h6 a7 f3 b7 a2 g5 f4 g6 h3 g7 h2 Nd2 c4 Nb3 c3 Bh3 c2 Nc5 Qc8 Na6 Ne7 g8B Qd7 Bge6 Nbc6 b8R Nc8 Rb6 f2+ Kd2 f3 Nb8 f1N+ Ke1 Ne3 e5+ Kc7 Rab1 a1R R1b3 Ra2 Rc3 f2+ Kd2 Ra4 Nf3 Rb4 Qg1 f1N+ Ke2 Nd2 d6+ Kd8 d5 Nec4 Ke1 Ke8 Beg4 Kf7 e6+ Kg6 e7 Nd8 Ne5+ Kg5 e8B Kf4 Be6 Ke4 Bh5 Rg8 Be2 Rg2 B2g4 Be7 Ba3 c1B Kd1 Rf2 Re3+ Kd4 Rc3 Bb2 Re3 Bc3 Bc1 Qc6 d7 Bc5 d6 Qb7 Qe1 Rg2 Rf1 h1N Rff3 Ng3 Qg1 Nge4 Rg3 Ng5 Rgf3 Ndf7 d8B Qd7 Be7 Nd8 Rg3 Nh7 Bh4 Ng5 Rgf3 Rb5 Be1 Ba5 Rg3 Rb4 Rgf3 Nb1 Rg3 Rc2 Rgf3 Nbd2 Rg3 Qh7 d7 Qd3 Rgf3 Kc3 Rg3 Kb3 Rgf3 Ka2 Rg3 Ndf7 d8R Kb1 Rd4 Qh7 Rc3 Nd8 Rge3 Qd7 Nbc6 Rb8 a8B Na7 Bb7 Rc8 Nb8 Rc7 Bbf3 Rb7 Rbd6 Ra4 Ra6 Rbb2 Rb6 Rbb4
1nbR1rn1/1b1R2Rb/1K3r2/1p4R1/3Rb1Nk/1bNN1q2/3Q3B/R2N2Bq w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 d5 cxd5 g6 b4 axb4 g4 Qd7 h4 Qb5 g5 Be6 Bh3 Bc8 Bg4 Be7 Bf5 gxf5 g6 Bg5 hxg5 Qd7 Qc2 Qd6 Qd1 Qd8 Kf2 Ke7 Ke3 c5 a4 b5 d4 h5 g7 b3 g6 b2 a5 h4 a6 h3 e6 Kf6 d6 Kg5 d5 h2 d7 f6 d6 c4 Kd4+ f4 Kc5 f5 e4 c3 e7 c2 e8N Rh3 a7 Bb7 e5 Rg3 e6 Bg2 e7 Qa5 d8R Qa6 d7 Qa2 Qd2 Kh5 Nf3 Qb3 Rd1 h1B Nd6 Rh3 e8N Ne7 Ne5 f3 g8R f2 g7 f1B Nf6+ Kh4 Ndc4 f4 Nc3 b1B Ne3 f3 Nd3 f2 Kb6 Be4 Nfg4 Rf3 Ra4 Qf7 Rd4 Bh3 Ba3 c1Q Bd6 f1B Bh2 Ba2 Bg1 Bb3 Bh2 Nbc6 Bg1 Rc8 a8R Rf6 Ra1 Nb8+ Rd6 Rc4 Nde5 Bg6 Bh2 Bfg2 Qe1+ Rf2 Nh6 Rc7 R1d4+ Kg5 Qd2 Bb7 Nd3 Bhe4 R6d5+ Bhf5 Nhg4 Qh1 Ned1+ Kh4 Bg1 Be6 Rg5 Rc5 Rgf8 Rcf5 g8R Bh7 R8g7 Qf6 Rff7 R2f4 Rh8 Rf3 d8B Rf2 Re8 Ng8 Bc7 Bec8+ Bd6 Rf1 Rd7 Qf7 Bdh2 Qh5 Red8 Rf8 Nge3 Qe2 Ng4 R1f7 Qc2 Qef3 Qd2 Rf6+
1q1kBN1N/4b3/2r1R1Bp/2R1qn2/7q/Q3qnbN/n1K1B2B/B1r1NB2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b6 a5 b3 a4 Rh2 a3 Rh3 Bd7 Rh1 Ba4 bxa4 Bh6 Ra2 Bg7 Ra1 Bf8 d4 c5 Kd2 f5 g4 h6 e4 f3 e5 c4 e6 f2 d6 c3+ Kc2 h3 a5 h2 a6 f4 d5 a2 a7 f3 b7 Qe7 d7+ Kd8 g5 Qh7+ g6 Bd6 e7+ Kc7 d8N Na6 e8B Ba3 b8B+ Kc8 d6 Ne7 Nd2 Qg8 g7 Nf5 Bb2 Rh7 Rb1 a1Q Nh3 Bb4 Be2 f1Q Rc1 f2 Nf3 Qg1 Ne1 f1N Ne6 Qe3 Qd3 Nd2 Nf8 Kd8 d7 Nf3 Rg1 h1Q Bh2 Rb8 a8B Rb6 Rg6 Be7 Be4 Rc6 Re6 Qh8 g8B Nb4+ Kb3 Na2 Kc2 Qe5 Bgf7 Qg3 Bg6 Qb8 Qd6 Rf7 Qa3 Rf6 B4d3 Rc5 Re5 Rfc6 Re6 Rc4 Bf1 R4c5 Be5 Qh2+ Bde2 Qhf2 Bh2 Qfg3 Rd1 Qh4 Rd5 Rc4 Nd3 Qae1 Rc5 Qeg3 Ne1 Qee5 Kd3 c2 Bd4 c1B Ba1 Rd4+ Kc2 Bf4 Ng1 Rd1 Nh3 Kc7 d8N Rc1+ Kd3 Qgg5 Nf7 Bg3 Nh8 Kc8 Bd1 Kd8 Bde2 Rd1+ Kc2 Qge3 Ng2 Rb1 Ne1 Rc1+
bN1b3k/2n1NR1n/B1B1Q3/7p/1Nq1R3/3R1NN1/N1Rbr1rb/Kr4r1 w - - 0 1 illegal: No possible last move, all moves rejected
N1R1rB2/b1q1NN2/NQ2n3/Bqp5/q1B1BB1B/R6q/nk1K4/q1q4r w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 d4 Ke7 b4 Kd6 e4 a5 b6 c5 g5 h5 b7 f5 e5+ Kc7 g6 Kb6 d6 a4 g7 h4 e6 f4 d5 f3 b5 Ka5 d7 Kb4 e7 a3 e8B a2 b6 h3 d6 h2 Bf4 f2+ Kd2 Rh4 Na3 Rh3 Nc4 Qc8 d8B Nd7 b8N Ne7 b7 Nc6 Nb6 Ka3 Bg6 Be7 g8N Nf8 d7 Bd6 Kc3 Rh6 Na6 Nb4 b8B Ne6 Nh3 g1Q Kd2 g2 Be4 Rh8 Be2 f1Q Ng5 Qd4+ B2d3 g1Q Qb1 Be5 Bd6 Rh3 B6e7 Bb8 Nf7 Ba7 Bdc7 Qg4 d8B Qb7 Rg1 h1Q Rg2 Rc8 Na8 Qhg1 Bcd6 Rh1 Bh4 Qh3 Ba5 Qc7 Rg5 Rd8 Rd5 Rc8 Bf8 Re8 Rd8 Qdd7 Ne7 Qa4 Bb5 Qc4 Rc8 Qcb3 Bc4 Qc1+ Ke2 Qbb2+ Qc2 Qbb3 Qd2 Qbb1 Qd6 Qbb3 Qc6 Kb2 Qb6 Qb5 B8h6 Q3a4 Bf8 Qcf1+ Kd2 Qg1 Rf1 a1Q Rf3 Na2 Ra3 Qgc1+
r1NrR1Rn/6Rn/1Q2RB2/BN1B3R/kbb2n2/rbRn4/1Kp1r3/5B2 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 d4 Kd7 Kd2 c5 Kc2 f5 e4 a5 b4 h5 e5 a4 g6 g2 b6 g3 b7 c4 g7 a3 e6+ Kc7 b5 Kb6 d6 Ka5 d5 f4 e7 h4 e8R f3 b6 c3 d7 f2 d8B a2 d6 h3 d7 h2 Nf3 g1N Bcg5 g2 Nd4 Kb4 Nd2 Ka4 Bgf6 Nh6 g8B Nf7 Nb5 Bb4 Qb1 Nh3 Re6 g1R Nc4 Rg2 Ncd6 Nf4 Kc1 c2 Kb2 Rg3 Bc7 Re3 d8R Re2 Rde8 Nd7 b8R Nf8 b7 Nh7 Ba5 Bd7 Rg1 h1N Rg7 Bc6 Rbc8 Bd5 b8R Bb3 Bh3 f1B Rc3 Nf2 Nc8 Bg2 Qg1 Bgd5 Bf1 Bdc4 Rd1 a1R Rd5 Ra3 Rh5 Ne4 Qb6 Nc5 R6e7 Ne5 Be6 Nf7 Bd5 Rg8 Re6 Nh8 R8e7 Re8 Rg8 Rf8 Rbb7 Rd8 Ree8 Re3 Rd7 Re2 Rdg7 Ncd3+
3n4/1Rq2N2/Rp6/2k1B3/K3nq1R/b1BBN1q1/QpR1R1q1/2rBn1Rb w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ra6 h5 Rg6 hxg6 Nb8 a4 Kd7 d4 Kd6 Kd2 h5 Kc2 e5 Kb3 c5 g7 f3 f6 e4 a5 e3 g6 f2 a6 b6 f7 h4 a7 h3 a8R c4+ Ka4 c3 Qb3 c2 Na3 e2 Bf4+ Ke7 d6+ Kd7 d5 e1Q Qa2 c1N Ra6 b3 Bd3 f1Q Nf3 h2 Be5 b2 Nc2 Be7 f8B Rh7 Ne3 Qg2 Ng5 Qgf1 Nf7 Nb3 Rc1 Qf6 Rc2 Qg3 Re1 h1Q Ree2 Qf5 Bc3 Nf6 g8R Qff1 Bg7 Ne4 Bge5 Qc7 g7 Nd4 Rh8 Qhg1 g8B Rh1 Rh4 Nbc6 Bh7 Qfg2 Bg6 Qf4 Bh5 Nf3 Bg4+ Ke8 d7+ Kf8 d6 Ne1 Bh5 Bb7 Bf3 Q1h2 Bh5 Qhg3 Bg4 Kg8 d8R+ Bf8 Rd7 Nd8 Re7 Rg1 d7 Bd5 Re6 Ba3 Rg6+ Kf8 Bf3 Ke7 Bg4 Nc6 d8R Rf1 Rda8 Nd8 R8a7 Rg1 Bf3 Kd7 Rg7 Kc6 Rb7 Kc5 Rf2 Qgg5 Bd1 Q5g3 Rfe2 Q2h2 Rgh7 Nf3 R4h6 Qhf2 Rh1 Ned2+ Bc4 Re1 Rg1 Qf1 Rh4 Qfh3 Reg2 Qh1 Be2 Rc1 Rgh2 Ne1 Bd1 Bf3 Re2 Ne4 Bd3 Qhh2 Nh6 Bh1 Nf7 Qhg2
nN2B3/BRrp2Kr/r2npnN1/4B1r1/bQ4NN/N1B4k/2R1N1b1/4r3 w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 axb5 Nh6 d4 cxd4 f5 Ng8 Ne2 Qb6 Ng1 Qe6 f6 Qf5 gxf5 g4 Nd2 Bh6 Nb1 Bg5 hxg5 Bb7 Rh5 Ba6 Rh1 Bc8 Kf2 Kf7 Kg3 a5 Kf4 h5 Ke5 e3 c4 e6 b4 g3 c5 g2 b6 e2 b7 e1N c6 h4 b5 d3 g6+ Kf8 c7 a4 b6 h3 f7 Ke7 f8N d2 f6+ Ke8 f7+ Ke7 g7 h2 Be2 a3 Bh5 a2 Qa4 d1R Qb4+ Rd6 Bd2 Ra6 Bc3 Ra7 Ne2 g1R Na3 Rh7 Rb1 Na6 b8B a1R b7 Nf6 Rc1 Rg4 Rc2 Ng2 Rb1 h1B Rbb2 Nh4 Rb3 Ra8 Ba7 Bc6 b8N Ba4 Rb1 Bb7 c8N+ Kd8 g8N Nc7 Rbb2 Rc6 Nce7 Rg5+ Nf5 Re1 Nh6 Rc4 Ng4 Bg2 Ng6 Rc6 Bf2 Raa6 f8B Na8 Bd6 Rc7 Ba7 Ke8 Kf4 Kf7 Bde5 Nf3 Nfh4 Nd2 Ne7+ Kg7 Be8 Ne4 Neg6 Nd6 Qc5 Bh1 Rb7 Bf3 Qb4 Bg2 Nh2 Kh6 Ng4+ Kh5 Nf5 Bd5 Bed4 Nfe4 Ke5 Nc5 Kf6 Bf3 Be5 Bg2 Bf7 Nce4+ Ke7 Rc1 Kf8 Nf6 Be8 Rd1 Nfh4 Re1 Ne3 Rh8+ Kg7 Rh6 Nec4 Kg4 Ne3+ Kh3 Ng4 Rh7+
4B1R1/2q1r3/2b5/kppp1nR1/N1B1N1Kn/q1p5/2p2NQN/1rBBB2B w - - 0 1 illegal: Other
r5n1/qbR2Kb1/R2qN3/1qB3B1/r1Q2q1N/q3NB1N/BBq5/Bq1nk3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 Ke6 h2 b7 a4 e5 h3 d6 c2 Be2 f1Q Bf3 f4 Na3 Nc6 b8B Qd3 Nc4 a3 Qe2 a2 Ne3 Ra3 Kf7 Ra5 e6 Ra8 e7 Qa3 e8N Ra4 Ba7 Na5 Bc5+ Kb3 Qf1 Bb7 Qa6 Qb8 d8B Nc4 d7 Qc7 Bg5 Qd6 Ba7 Kb4 d8N Kb3 Bd4 Kb4 b3 Nb2 Bc5+ Kc3 b4 Nd1 Bb2+ Kd2 b5 c1Q b6 Ke1 Ne6 Qc2 Rc1 a1Q Qc4 Qab1 Ba1 Qb5 Bb2 Bc6 b7 Bd5 b8B Bb7 Bh5 f3 Bc7 f2 Bf3 Nf6 g8B f1Q N8g7 Qff2 Ngf5 Bg7 Bd8 Qfg3 Nh4 Qgf4 Bh7 Ng8+ Bdf6 Ne7 Bhe4 Rha8 Bd5 Ng8 Ba1 Qg3 Bfb2 Qgf2 Ne2+ Qf1 Rg1 h1Q N2f4 h2 Nh3 Qhg2 Rh1 Qgf2 Rg1 h1Q Rg4 Qba6 Rf4 Qa7 Rf6 Q1e2 Qd4 Qe5 Bfe4 Qcd2 Bf8 Qff4 Rc7 Nf2 Nd8 Qhf3 Ba2 Q2b5 Qc4 Qc2 Bc5 Qfd1 Bc6 Qdb1 Bf3 Qfd4 Rfc6 Qdd6 Ne6 Nd1 Ra6 Qf4+
QBB1B1Rb/1q1b1Rb1/7B/1qb1nRqR/N4b1B/1rK2B2/r5n1/1Nb3k1 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 h4 Kg6 f4 Kf5 b4 e5 c4 g5 c6 d5 b6 a5 b5 e3+ Kc3 Ke4 b7 e2 c5 e1Q+ Kb2 g3 f5 g4 h5 g2 c7 g3 b6 a4 c6 d4 h6 d3 h7 d2 f6 Ke3 f7 Kf2 Qh5 d1Q Be2 a3+ Ka2 e4 Bf3 e3 Qg4 e2 Bd5 Qf1 Qh4 e1B Qf4+ Qf3 Qa4 Qb5 Rh5 Nd7 b8R Nh6 b7 Qg5 Ne2 g1B Nec3 Bg7 f8R g2 Rf7 Bh2 Qe4 g1B Na4 Re8 h8B Ne5 Rf5 Be6 c8B Bf4 c7 Nhg4 Bd7 Bed2 c8B Ne3 Rf7 Re7 Be8 Bd7 Rf5 Ng2 Rf7 Bh6 Bf6 Bg7 Bc6 Ra7 Ra8 Kf1 b8B Bc5 B6b7 Kg1 Qd5 Qgg3 Bh4 Qg5 Rf5 Qe4 Qg8 Qeb4 Bf3 Qb7 Qh8 Q4b5 Rf7 Re6 Qf8 Rb6 Rf5 Bcb4 Kb3 Bc5+ Kc2 Bde3 Kc3 Ra5 Ra2 Raa6 Rd2 a2 Rd6 Bh8 Rdf6 Ra5 Rf7 a1B+ Kc2 Bb2 Bd2 Bc1 Kc3 Ra7 Nb2 Ra2 Na4 Qe7 Qg8 Bh6 Qf8 Bef4 Qg8 B6g7 Qf8 Bg3 Bh6 Qg5 Ra6 Bgf4 Qe7 Bf2 Qa3 Qe2 Nb2 Bf8 Qa5 Rb5 Rg6 B2c5 Rg8 Bfg7 Qa8 Rb4 Na4 Qeb5 Qa7 Rbb2 Qa8 Rb3#
r1nQ1K2/qrr1B2r/2nB1R2/b2B2Bq/R3N2r/1R3b1r/2B1nB2/4RN1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 h5 g4 c5 b4 f3 g5 c4 g6 c3 g7 f2 b6 f6 b5 h3 b7 a4 b6 h4 Nf3 h2 Bg5 c2 Nfd2 c1N Nc3 Nc6 b8R a3 b7 Nge7 g8B a2 e3 h3 Bd3 f1Q Bc2 Qg1 Nf1 f5+ Kf4 Qa5 e4 Rh7 e5+ Kd7 e6+ Kd6 Bh4 Bd7 Qd2 Nc8 e7 Qa7 e8R Qg6 Re1 Qh5 Rg1 h1R Bf2 h2 Rg6+ Be6 Rf6 Ne2+ Ke3 f4+ Ke4 f3 Qd3 Kd7 d6 Bg4 d5 Be7 Qd2 Bd8 Qg5 Ba5 Be6+ Kd8 d7 Kc7 d8B+ Kd6 Qh4 Bh3 Qg5 Bg2 Kf5 Rc7 Bh4 Kc5 d6 Kd4 d7 f2 Bd5 Be4+ Ke6 Bf3 Ne3 f1R Ne4 Rfg1 Bf2 Rg4 Be7 Rh4 d8B Rh3 Rg6 Rh4 Kf7 Rh3 Kf8 Rh4 Rac1 a1R Rf6 Rb1 Qg8 Rb5 Ra1 Ke5 Ra4 Rh3 Rh6 Kf4 Nf1 Rh4 Bg5+ Kg4 Rf6 Kh3 Be7 Kg2 Kg7 Rh3 Qd8 Rb4 Nc3 Rbh4 Ne4 Rg1 Kf8 Kh1 Bc1 Rg7 Bg5 Nb6 Rc8 Rh7 b8B Rb7 Bc7 Rg7 Rb8 Nc8 Bcf4 Rc7 Rb3 Rb7 Bed6 Rgc7 B4e3 Kg2 Bec5 h1R Be7 R1h2 Bcd6 Kh1 Bd2 Rg2 Bc1 Rg7 Bg5 Rh7
2b4N/b2nBrrk/nnR5/2BR2nN/5r2/qQ1q1Rr1/1BBK4/1RR2R1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 e4 c5 b4 f5 g4 Kf7 b6 Kg6 d6 h5 d7 h3 g5 c4 d5 f3 b7 a4 e5 h2 e6 a3 b5 f2+ Kd2 f4 e7 a2 e8R f3 d6 h4 b6 h3 Re3 Rh5 Na3 Rh4 Bb2 Kh7 Nb5 Ra3 Rc1 a1R Ne2 Nf6 Qb3 Na6 b8B Rf4 b7 R1a2 Rg1 h1N Ng3 h2 Nh5 Ng3 Ba7 h1N b8R Be7 Bh3 f1R Bc5 f2 Rf3 Ra1 Rb6 Bf8 Rc6 c3+ Kd3 c2 g6+ Kh6 g7 Kh7 g8R Nge4 Rb1 Ng5 Kd2 Bg7 Rf8 c1Q+ Ke2 Qc3 Be6 Qe7 d8B Nd7 Rc1 Qc4+ Kd2 Bd4 Rf5 Qf8 Be7 R1a2 Bd5 Ra1 Be4 Qd5 Bb4 Ba7+ Bd3 Qe4 Rd5 Rf7 Bc5 Rg7 Rdf5 Ra4 Bc2 R1a3 Rf6 Qf5 Rb1 Rg4 Rc1 Rg3 Rf7 Ra4 Rb1 Rf4 Rf6 Nb6 d7 Qe4 d8R Nd7 Rc1 Qg6 Rf5 Qd6+ Rd5+ Qf5 Rf8 Qfg6 Be3 Qa3 Nd6 Qf5 Nf7 Qe4 Nh8 Rff7 Rd1 Qd3+ Kc1 Rf4 B3c5 Rff7 Re3 Rff3 Rff6 Rf5 Rfe6 Rff7 Rf6 Re1 Rff5 f1N Rf2 Nd2 Rgf1 Nab8 Rff3 Nc4 Ree5 Ncb6 Re2 Qg6 Kd2 Na6 Rb1 Qf5 Ree5 Re4 Rfc1 Rh4 Ree1 Rf4 Ref1 Qd3+
r1q1n1b1/R1B1B2q/3b2Rb/1BB1r3/r2nRN2/3KNBQ1/6b1/nB2Rrk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 Ke2 Kg5 d4 Kg4 b6 Kg3 d6 a5 b5 c5 d5 f5 d7 h5 e5 a4 b7 h3 b6 f3+ Kd3 Kf2 g4 h4 e6 h2 d6 a3 e7 a2 e8B f4 g5 h3 g6 Ra7 g7 Ra6 Bg6 Nc6 b8R Nf6 g8B Nd4 b7 Ne8 Nc3 Ra4 Qb3 Rh5 Be4 Re5 Ba3 Qc7 d8B Be6 d7 Qc8 Re1 a1N Ra8 Bd6 Bgh7 Bg8 Be2 Kg2 b8B Kf2 Be7 c4+ Kd2 Kg2 Nd1 c3+ Kd3 c2 d8R c1B Bc5 Bd2 Bb7 Bc1 Ba6 f2 Bc7 f1R Bb5 f3 Ra7 f2 Rd7 Bh6 Bf3+ Kg3 Re3 Re1 Re4 f1R Ne3 Kf2 Bf5 Re2 Rd8 Rea2 Ne2 R2a3 Rg1 h1Q Rg6 h2 Nf4 Ra2 Ng4+ Kg1 Ne3+ Qg2 Qc3 h1B Qe1 Qg4 Qg3+ Bg2 Rd7 Qh3 Rd8 Nf6 Re8 Qh1 Be6 Qh4 Bb3 Qh1 Bc2 Qhh3 Bb1 Qhd7 Bed8 Qh7 Re6 Ne8 Be7 R2a3+ Kd2 Rf5 Ra5 Be5 Ng4 Bhg7 Re1 Bh6 Raa6 Bd6 R6e4 Ra5 Ne3 R3a4 Kd3 Rh5 Rb6 Ra7 Ra6 Ra8 Ra7 Re5
2BR3q/2rNnR1r/3nR3/4R3/2q2qpn/1B3kBr/2BBb3/B2bQKbN w - - 0 1 illegal: No possible last move, all moves rejected
qN4rr/r4BbN/nk3Nb1/2NQ2N1/2Rq1B1n/r1q3KB/1pBr3R/N7 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 b5 f4 h5 Kf2 e5 g4 c5 f6 Kc7 f7 c4 a5 e4 a6 b3 g5 h3 g6 e3+ Kg3 b2 g7 c3 a7 b4 d6+ Kc6 d5+ Kb7 d7 b3 d6 c2 f5 e2 f6 e1R Rh2 Nh6 g8B Re6 Bf4 c1Q Qd5+ Qc6 Nd2 b1R Ra4 b2 Nb3 Re8 Nf3 Bg7 f8N Na6 f7 Ra1 Ng5 Ra3 Nfh7 Kb6 f8N Qc3+ Bd3 Qdf6 d8N Qfd4 Na1 Bf5 d7 Bg6 Nb7 Red8 Bf7 Rg8 Nf6 h4+ Kf3 Nf5 Nc5 Qg1 Rc4 Qgd4 Rf2 h2 N8h7 h1R Rh2 h3 Kg4 Rab8 a8B Rb7 Bc2 Ra7 Bb7 Nh4 Bc8 Bd3 Kg3 Bg6+ Qf3 Rd1 Qd3 Rdf8 d8N Rd2 Nc6 Rh8 Nb8 Rfg8 Rg2 h2 Bh3 h1Q Rh2 Qa8 Qf3 Bd3 Qd5 Bg6+
3BN1k1/2bq2bn/2N3BR/2p1N1nQ/6K1/N1nqNn2/1R1r1r1N/n2b1BB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 Kf3 f5 g4 Kf7 d4 c5 b4 a5 e4 h3 g5 a4 e5 h2 b6 a3 b5 h4 d6 a2 b7 h3 d7 Nf6 d5 Nh7 b6 Na6 b8N Bd6 g6+ Kg8 b7 Bc7 e6 Nb4 g7 Nc2 Kf2 f3 e7 f4 e8N Ra6 Bb2 Rf6 d6 Qe7 d8N Bg4 Bc1 Qd7 Na3 Bh5 Rb1 a1B Nf7 Bc3 Qd3 Na1 Na6 Bb2 b8N Bd4+ Ke1 f2+ Kd2 f3 Nb4 Bc3+ Ke3 Rf5 Qd2 Rd5 Qd1 Rd2 Kf4 Bf6 Bg2 f1N Nbc2 f2 Ne3 Ng3 Qg4 f1N Rb2 Ne4 Nc6 Nc3 Nf3 Rf2 Qg6 Nd2 Bf1 Bg4 Nfe5 Bh5 Rg1 h1N Qg4 Ng3 Rh1 h2 Qf5 Qc8 d7 Nge4 d8B Qd7 Qg5 Bg4 Qh5 Neg5 Kg3 Bf5 Kf4 Bc2 Kg3 Qd3 Kh4 Bd1 Kg4 Ndb3 Bd2 Nd4 Be1 Rc2 Bf2 Rd2 Rg1 h1Q Rg3 Ba4 Nh2 Qd5 Rh3 Ndf3 Bg1 Bd1 Qg6 Nf7 Rh6 Nf7g5 Qh5 Qd7+ Nf5 Ne1+ Nef3 Bd4 Rg6 Kf7 g8B+ Kf8 Rh6 Bg7 Bd5 Nec2 Be4 Nd4 Qh3 Kf7 Qh4 Rf8 Qh3 Nce2 Nfe5+ Kg8 Qh5 Nc3+ Nef3 Qd6 Ne3 Rf7 Bg6 Qd7+ Kh4 Rf5 Nfe5 Rff2 Kg3 Ndf3 Kf4 Ne6+ Kg4 Neg5+
1B1K1NB1/RnB1RBbB/r3q1rp/7b/kqq2n2/B2nQ3/q7/1qNRR3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Ke5 f5 g4 h6 e4 h3 d4 h2 b4 a4 b6 a3 d6 Kc6 b7 c4 d7 Kb5 Ke6 a2 d5 f3 d6 f4 e5 f2 g5 f3 g6 Nc6 b8B Ra3 g7 Ra8 Qe1 Nce7 Nd2 Qb6 Bd3 f1Q Ne4 f2 Ng5 Ra4 Ba3 Ba6 d8R Nc6 Kd7 Qe2 e6 f1Q e7 Na5 e8B Nb7 Ne6 Ne7 g8B Nd5 Bdh7 c3 Bef7 c2 Bc7 c1N Re8 Nf4 Re7 Bg7 Nf8 Ncd3 Qg3 Ra5 Qe3 Ka4 b5 Qb1 Ke8 Qb4 d7 Qe6 d8R Qc2 b6 Qcc4 Rd1 a1Q Ra8 Qaa2 Ra7 Rg5 Ne2 Rg6 Rhf1 h1Q Nc1 Qhe4 Rfe1 Qbb1 Qh3 Qcb4 Qg3 Qe4c4 Qg1 Na5 Qg5 Bb7 Qg3 Bf3 b7 Bh5 b8B Kb5 Qe3 Nb7 Ba5 Ka4 Bac7+ Qca6 Nd7 Nd5 Ra8 Qeg4 Ba7 Qba1 Rc8 Q6c4 Ra8 Ra6 Nf8 Bf6 Bab8 N5f4 Ra7 Q1b1 Bf5 Rh7 Qc5 Rg7 Bfh7 Qge6 Qe5 Rg6 Qe3 Qeb6 Kd7 Bg7 Kc8 Qf6 Kd7 Qfe6+ Ke8 Nd6+ Kd8 Nb7+
3rr1bR/3NR3/k1pnB3/b1q1K1B1/3QRBB1/nb2bb1b/3R2bR/R2N4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Kd4 h5 b4 f3 g4 h3 e4 h4 d6 a4 e5 f4 b6 Kc6 b7 Kb6 g5 f2 b5 a3 g6 h2 e6 a2 d7 c6 g7 h3 e7 f3 e8R Bc5+ Ke5 Nf6 g8B Qe7+ Be6 Be3 d8R Na6 b8B Ne4 d4 Qc5+ d5 Nd6 Nc3 Nb4 Re7 Nc2 Qd4 Na3 Be2 f1B Nd1 f2 B2g4 Bg2 Nf3 f1B Rde8 Bc4 Bc7+ Ka7 b6+ Ka6 b7 Bb3 b8R Bd7 Rb4 Rd8 Rc4 Bc8 Rc2 Bd7 Re1 h1B Ree2 h2 Rcd2 Bg1 Re4 Rf8 Rb2 Rh8 Bg5 Be3 Rd2 Bc8 Rh7 Bh3 Ree7 Rhe8 Rh8 B1g2 Bb8 h1B Re2 Bf1 Rh2 Bfg2 Bc7 Qc4 Bb8 Nb7 d6 Qc5+ Bd5 Bf5 d7 Be6 Bd6 Bg8 Bc7 Rc8 d8R Nd6 Rd7 Rcd8 Bb8 Qc4 Bde6 Qc3 Nd2 Bf3 Nc4 B1g2 Nb6 Qb4 Rb7 Qc4 Nd7 Qc3 Rb5 Qa5 Rd5 Qc5 Rc1 a1B Bc7 Bb2 Ra1 Bbc1 Qb4 Nf7+ Kf6 Ra8 Bcf4 Nd6 Ke5 Bcd2 Qa4+ Ba5 Qb4 Qc2 Rd2 Rad8 Qd4 Qc5+
1Rq1rq2/2rR4/rN6/bb1B4/Nknq4/1N2BN1n/1p2BB2/KnQB1n1B w - - 0 1 illegal: No possible last move, all moves rejected
2nkNr2/rrN1R2b/1Q1q3B/3bq2N/3n2NR/1R1npB2/1r6/RRb1KR2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 h5 d4 a5 b4 e5 f4 c5 d6 a4 f5 c4 f6 a3 b6 e3 b7 a2 d7+ Kf7 g5 c3 g6+ Ke6 b5 e2 d5+ Kd6 g7 Kc7 f7 h3 Nf3 h2 Bh6 c2 Na3 c1R Nc4 e4 Nd6 h4 Ne5 h3 Bg2 Rc4 Qd4 Ne7 g8N Nbc6 b8R Ra7 Ng4 Rb4 Bf3 Rb2 N8f6 Rg8 Rf1 h1B Nh5 h2 Qg1 Bg7 f8R Nd4 Rf7 Rf8 Rb6 Ba6 Qf2 Nc8 Re7 Rb7 Qg1 Qe8 d8N+ Qd7 Qe3 Be5 Qb3 Bf4 Qb4 Bc1 Ne6+ Kb8 Ne8 Qd6 N6c7 Qe5 Rb1 a1R d6 Bg2 d7 h1Q d8R Qhh2 Rf6 Raa2 b6 Bd3 Rc6 Raa7 Rc4 Qhf4 Rdd7 Qff6 Rd5 Qfd6 Ra5 Bh1 Raa1 Bc2 Kf2 e1N Qb3 Nb5 Ke2 e3 Rf4 Nd3 Rd4 Nc5 Ke1 Bh7 Be2 Bd5 Rd2 Nd4 Bf3 Nd3+ Kd1 Qc5 Rh2 Nd6 Rh4 Kc8 Qb4 Rb8 b7+ Kd8 Qb5 Rc8 b8R Qb4 Rb6 Rb8 Qc6 Qa3 Rb3 Nc8 Qf6 Rbb7 Qb6 Nc2 Ke2 Qb4 Kd1 Qbd6 Ke2 Nd4+ Kd1 Nb4 Ke1 Nd3+
1B2N3/5bRR/rR1rN2r/bR1N4/nN2q1qk/n2p1B1b/2R4K/3nRQ1r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 b4 Kf6 f4 e5 Kf2 h5 g4 d5 Kg2 a5 b6 e4 b7 e3 c5 e2 b5 e1Q b6 a4 c6 a3 c7 a2 Nf3 Qd7 Nc3 Bb4 Ne5 Ba5 Be2 Ne7 Nd3 Ra6 Nb4 Rd8 Bf3 Nbc6 b8R Ne5 b7 Qe4 Kg1 h3 g5+ Kf7 g6+ Kf6 g7 h4 g8R h2+ Kg2 Nc4 Rg7 h3+ Kg3 d3 Be3 d2 Ba7 d4 Qe2 d3 Rhc1 d1R Rc2 h1R Qf2 Rdf1 Re1 h2 Qg2 Rf2 Qf1 a1N Kh3 Qde6 Rh7 Bd7 c8N Nb3 Nd6 Rg2 Rg7 Nc5 Rh7 Rg7 Ne8+ Kf7 Ncd5 Na3 Ne3 Na4 Ned5 Ng6 Kg3 Ne5+ Kh3 Ng4 f6 Kg6 f7 Rg1 f8R Ne3+ f5+ Kg5 Rf7 Nd1 Re7 Rg6 Reg7 Rg4 f6 Rg1+ Bg4 Bc8 f7 Rdd6 f8N Q6f5 Nc6 Be6 Ncb4 h1B Kh2 Bf7 Bf3 Qfg4 Ne6+ Kf5 Rbc8 Bg2 b8R Bh3 R8c5 Rh6 Rcb5 Bg6 Nd8 Kg5 R8b6 Kh4 Bb8 Bf7 Ne6 Rh1+
NNK3kb/BB2rRqp/1N5B/B7/3QNr2/2B2b2/r1q2nB1/1rR1nb1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 f5 d4 Kf7 b4 c5 e4 h3 g4 h2 b6 a4 b5 c4 d6 c3 e5 c2 b7 a3 d7 a2 g5 Nh6 e6+ Kg7 e7 Ng8 e8N+ Kf7 b6 Ra5 g6+ Ke6 d5+ Ke7 g7 Kf7 d6 Na6 b8N Nc7 b7 Re5 Nd2 Qf6 d8B Nb5 d7 Re7 Bg2 Nh6 Nh3 Ng4 Ba5 Nf2 d8B Na3 Ne4 Kg8 Rf1 h1N Nc7 Qb2 Rb1 a1R Bc3 Ra2 Na8 Qa1 B1d2 c1Q Bda5 Qc2 Rc1 Be6 Be3 Bd5 Qd4 Bc6 Na6 Qab2 b8B Qb7 Ba7 Qc7 Bed2 Bb7 Ke2 f3+ Ke3 Qd7 Kf4 Qc7+ Kg5 f4 Kf5 Ng4 Ng5 f2 B7b6 f3 Be3 Qb3 Nec5 Qg3 Nb8 Nc2 Ba7 Bc6 Rfd1 f1R Ncd7 f2 Rd3 Re1 Rb1 f1B Ndb6 Ngf2 Bed2 Rc1 Rf3 Ne1 Rf4 Bf3 Ne4 Kf7 g8B+ Ke8 Bc4 Qc2 Bd5 Bg7 Bb7 Kf7 Be3 Rf8 Ra1 Rd7 Bed2 Kg8+ Ke6 Rff7 Rf5 Qg4 Bh6 Rde7+ Kd6 Bh8 Rf6 Rg7 Rf7 Rg5 Rb1 Rf5 Ra1 Rf4 Kc6 Re6+ Kc7 Qg7 Kc8 Re7 N6d7 Rb1 Ndb6 Rb3 Rc1 Rb1
n2kN2Q/n2qp3/1NRBb1b1/Nn2b2B/b2Br2B/1BN3rn/3RK3/2B3r1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 c5 b4 a5 g4 h5 f4 c4 d6 h3 d7+ Kf7 d5 e3 f5 h4 b6 e2 b7 h2 d6 a4 f6 h3 g5 a3 g6+ Ke6 f7 a2 g7 c3 b5 c2 b6 Qc7 d8B Kd7 Na3 Nc6 b8B Nf6 g8B Bg7 b7 Rh4 Nb5 Nd5 Qd4 Nb6 f8N+ Ke8 Rb1 a1N Bb3 Na7 Nd7 Re4 Rb2 Be5 Bg2 Qc6 Bf3 Qd5 Kf2 e1N Ne2 Ng2 Nec3 Nf4 Rf1 h1B Bh5+ Qf7 Bbc7 h2 b8B Qg6 Rd1 Nh3+ Kf1 Bf3 Rd2 h1B Ra2 Bd1 Ra6 Rg4 Ke1 Be4 Kf1 Rg3 Ke1 Nd5 Nb6 Be6 Kf1 Qf7+ Ke1 Bg6 d7+ Kf8 Nd6 Qf5 Ne8 Kf7 Ba3 c1R Bcd6 Nc7 Qh4 Bc2+ Ke2 Rcg1 Bc1 Kf8 Ba2 Ba4 Bb3 Nc2 Qd4 Ncb5 Bd8c7 Ne3 d8N Nd5 Nc6 Kf7 Na5 Kf8 Bc5 Kf7 B7d6 Kf8 Nbc4 Nb6 Qh4 Kf7 Bd4 Kf8 Bbc7 Rc8 Bb8 Na8 Nb6 Rc4 Bbc7 Bef7 Qf6 Qd7 Qh8+ Bg8 Nbd5 Kf7 Rc6 Rb4 Nb6+ Kf8 Qh7 Be6 Qh8+ Kf7 B6c5 Rc4 B7d6 Rb4 Bf2 Re4+ Bce3 Rf3 Bh4 Rfg3 Qh7+ Kf8 Qh8+ Bg8 Nf6 Rd1 Nfd5 Ke8 Nf6+ Kd8 Ne8 Rdg1 Kd3 Rb4+ Ke2 Be6 Bf2 Rbg4 Bd4 Re4+
2N2nn1/6K1/2bB3r/QN1rN1k1/b3Bq1r/BRbp1q1p/1N6/R1B2nBB w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 c4 a5 f4 h5 b4 h3 g4 a4 g5+ Ke7 c5 h4 c6 h2 c7 h3 f6+ Ke6 g6 d6 g7 a3 f7 Kf6 f5 d3 b6 d2 b7 a2 b5 Qe8 b6 Be6 c8N Ne7 g8B Ra7 Bd3 Kg5 f6 Bg7 f8N Bb3 f7 Ra5 Ne2 Qa4+ Nd4 Rd5 Ng6 Rh6 f8B Nd7 b8B Qa3 b7 Ba4 Bf7 Ng8 Qe1 Qc3 Rf1 h1B+ Rf3 Bf6 Be7 Nf8 Ba7 Qc6 b8B Rh4+ Nf4 d1N Qa5 Ne3 Nd2 Nf1 Nb5 Qc3 Nc4 Qb4 Rb1 a1Q Bg1 Qaa3 Ra1 Rh6 Ng6+ Qd2 Bc2 Qc3 Nb2 Qc6 Bd4 Qf4+ Kd3 Qb7 Kc4 e4 Rb3 e3 Be4 e2 Bg1 e1R Ne5 Re2 Be8 Rg2 Bc6 Rg4 Kc3 Rgh4 Kc4 Rc5+ Kd4 d5 Bed6 Qf7 Be7 Qh5 Bbd6 Qf3 Bb7 Rc7 Ba3 Rd7 Bed6 Rd8 Kc5 d4 Kd5 d3 Bc6 Nd7 Ke6 Nf8+ Kf7 Bg2 Bdc5 Rd5 Bd6 Bd8+ Kg7 Bb6 Nba7 Bd4 Nb5 Bc3 Nd4 Q3e3 Bh7 Rc5 Nb5 Bd5 Be8 Ba8 Bc6 Qee4 Bd5 Bc6 Bf5 Qee3 Bh1 Qef3 Be4 Rd5
3N3n/NQrn2R1/Np1kbrN1/3p2n1/1r2q3/N1BBK2N/3n2R1/1Bb1B2n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 h4 Ke7 a4 g5 f4 d6 c4 d3+ Ke3 d2 a5 e4 a6 b3 a7 b2 h6 g4 h7 b6 f6+ Ke6 f7 g3 c5 g2 h5 Bg7 f8N+ Kd5 f5 Qc7 f6 Bf5 c6 Qc8 c7 Qd8 c8N Kc6 h6 Be6 f7 Nd7 Na3 b1N Ra2 Ne7 Bd3 Ng6 Qf3 Qe7 Nh3 Bb2 Rg1 d1R Bd2 Rc1 Be1 Nd2 Bb1 Rc3+ Bd3 Bc1 Rc2 Rg8 h8B Kc5 Be5 Nh8 h7 Rg4 Ng6 Rf4 f8N Rf6 Rb2 Rc4 Bc3 Rb4 Rc2 Rb8 a8B Rb7 Rb2 Rc7 Na7 Qe8 Bd5 Qe7 Ba2 d5 Bab1 Kd6 Qh5 Qe8 Qh6 Qe7 Qg7 Qe8 Ne5 Qg6 Nec6 Qg4 Nd8 Qg6 Rf1 g1N Rc2 Ne2 Rg1 Ng3 Qf7 Ne5 Nd7 Nh1 Nc5 Nd7 Na6 Qf5 Ke2 e3 Rg7 Ng6 h8N Qe4 Bb5 Qe5 Kd3 e2 Ra2 Qf5+ Ke3 Qg4 B5d3 Qc4 Bh4 e1N Rc2 Nef3 Be1 Ngf8 Ng6 Ng5 Ne7 Ng6 Ra2 Nh8 Ng6 Nb8 Rc2 Rc5 Qb7 Rc7 Ra2 Nd7 Rc2 Qg4 Nc5 Qf5 Na6 Nc4+ Kd4 Qf3 Ra2 Qf5 Rg2 Nd2+ Ke3 Qe4+
n2Bb3/3B3k/2nn3B/3N2pn/1BNR2pb/r1q1nqQR/B3B3/r2N2NK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 d5 Kg2 f5 h4 Kf7 e4 Kg6 b4 a5 c4 d3 h5+ Kh7 h6 g6 b6 d4 c5 d2 e6 d3 e5 f4 b7 a4 b5 a3 e7 a2 e8B Qf6 e6 Qe7 b6 Qh4 e7 Bd7 c6 Ra3 c7 Ba4 c8B Qh5 Nc3 Qa5 Qb3 d1Q Rh3 d2 Be6 f3+ Kh1 f2 Be2 f1N B8d7 Nf6 e8N Nh5 Nd6 Na6 b8N Be7 b7 Bh4 Nc6 Ne3 b8B Nf5 Nc4 Nc7 Ne7 Nd6 Ned5 Na8 Bc7 g5 Bd8 Qf1 Nd1 Qc3 Rb1 a1N Rb2 Qc2 Qg3 Qc3 Rb4 Nc2 Bf7 Ra1 Ba3 Nd4 Bfe6 Bc6 Ra4 Rf8 Bb4 Rf3 Bf7 Bb5 Bfe6 Nc6 Bf7 Kh8 h7 Kg7 h8B+ Kh7 Bg7 Rd3 Nf2 d1N Bh6 Ne3 Nd1 Rd2 Ra3 Rda2 Rb3 Qf2 Rb2 Ba4 Rd2 Ra3 Rd4 Nb8 Bc8 Be8 Bd7 Nc6 Bg6+ Kg8 Bb1 Qf7 Ba2 Kh7 Qf2 Qf4 Qg3 Qf3+
4r3/4NN1r/1B2qbn1/1bNn1q1n/2QBB1B1/2R1Rp2/pk2N2b/2bBKB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 e4 Ke7 b4 Ke6 h4 f5 c4 g5 c5 d5 h5 a5 h6 g3 c6 a4 b6 g4 b5 g2 b7 f4 b6 d3 h7 d4 c7 g3 Bb2 f3 Qc1 a3 Ne2 g1B Rh6+ Nf6 Nbc3 a2 Nd5 g2 Qc4 Ba3 Ne7+ Qd5 Rc1 Nd7 b8B Bh2 b7 g1B Rc3 Nf8 Ba7 Bd7 c8B Ng6 b8N Nh5 Bb6 Re8 h8N Ra7 Ba1 Bc1 Na6 Bge3 Bb7 Bg5 Nf7 Bf6 Bc6 Rc7 Ba4 Bb5 Bd1 Rcc8 Rh7 Rh8 Rg7 Rh7 Bb2 Kd7 Rg8 Qe6 Re8 Qf5 Nd5 Ra8 Nc5+ Kc6 e6 Rd8 e5 d2+ Kf2 d3 e7 Rb8 e6 Rc8 Ba4 d1N+ Ke1 Ne3 Bd1 Bg7 Ra3 Bf6 Bd4 Rd8 Rc3 Ra8 Rd8 Rb8 Rd7 Rc8 e8B Rd8 e7 Qe6 Ng5 Qf5 Bf7 Re8 Ra7 Qe6 Raa3 Qf5 Be6 d2+ Kf2 Kd6 Nf7+ Kc6 Bc2 d1Q Be4 Qa4 Ke1 Qa6 Rab3 Qe5 Bg4 Qf5 Ndf4+ Nd5 Re3 Qac8 Rbc3 Nh8 Ng6 Qfe6 Nh4 Ng6 Nf5 Qcd7 N5h6 Qf5 Ng8 Qde6 Qd3 Bc4 Bg2 Kb5 Bf1 Rf8 e8B+ Kb4 Ba4 Re8 Ne7 Bb5 Bb3 Ka3 Qc4 Kb2 Bbc2 Qee5 Bd1 Qee6
q3n1R1/b5r1/RBrQ1R2/R1Rn1q2/1N4bp/1R1p1n2/Kn2BrN1/N1N4k w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 e5 c4 h5 Kc2 a5 Kb3 a4+ Ka2 e4 c5 h3 g5+ Kg7 f6+ Kg6 f7 Kf5 b6 h2 g6 a3 b7 h4 b5 e3 b6 Ke4 g7 e2 c6 e1N f5 d3 c7 d2 f6 d4 Ne2 Bh3 c8R Kf3 Rc5 Ne7 g8R Na6 b8R Bg4 b7 Qd7 Bb2 Ra7 Nc1+ Kf2 Be2 Kg2 Ra5 Bg7 f8R Qf5 f7 Rh6 Rf1 h1Q Rfc8 Nf3 f8N Re6 Rcc5 Rc6 Ng6 Nd5 Nf4+ Kh2 Bc3 Nac7 Ng2 Ne8 Ra6 Bh6 Ba5 Be3 Bb6 Bg1 Ra8 Be3 b8N Rg7 Raa5 Bf2 Na6 Bg1 Rb8 d3 Qa4 d1N Nb4 Nb2 Nd2 Bf2 Ndb3 Bg1 Rb1 Be3 Na1 Bg1 Rba8 Bd4 Kb3 a2 Qa3 Be3 R8a6 Bg1 Nac2 a1R Rf2 Ra2 Na1 Nd1 Rf1 Rc2 Rf2 Nb2 Rf1 Bd4 Ka2 Be3 Bd1 Rf2 Be2 Nd1 Rb3 Nb2 Rd1 Qf1 Rd2 Kh1 Rdc2 Qc8 R2c4 Qa8 Rf4 Qg1 Rf6 Qh2 Nbc2 Qe5 Qb4 Qf4 Qd4 Qe4 Nb4 Qf5 Qe5 Bf4 Qe6 Bb8 Qd6 Ba7
RN1bR2q/Q2n1NbN/2r1n1n1/B2bp1b1/1r1NB3/KRRpk1q1/1R6/R7 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 Kb3 g5 f4 d5 h5 a5 b6 e5 c5 a4+ Ka3 g3 b4 g2 h6 d3 b5 d2 f6 g4 f5 d4 h7 d3 f7 g3 b7 Bh6 f8R Qc7 c6 Bg5 b6 Ra6 f6 Be6 f7 Qc8 c7 Bd5 Rh2 Nd7 b8R Ne7 b7 Rc6 Nh3 g1B Nc3+ Ke3 Nb5 g2 Re8 Ng6 f8R Bh6 Qb3 Bg7 Nd4 Rg8 Bb2 d1Q h8N Qg4 Qb6 Qg3 Ng5 Bf2 Qc5 g1B Nhf7 Rh8 Bg2 Rh4 Be4 Rf4 Kb4 a3 Bc3 a2 Nh7 Be1 Qa5 Bd2 Qa7 Qd8 c8R Rg4 Rf1 a1N Ka3 Nb3 Ba5 Nbc5 Ra1 Ne6 Ra8 Qdh4 b8N Bc1+ Rb2 Qh6 Nf6 Qh8 Nh7 Bf2 Rc7 Be1 Rb7 Bc3 Rb3 Bb4+ Ka2 Be7 Rc8 Bd8 Re8 Bd2 Ka3 Bb4+ Ka2 Bbe7 Rc7 Bg5 Ka3 Rf4 Rc8 Rf2 Rc7 Rfc2 Rc8 R2c4 Rc7 Rb4 Rc8 Rd6 Rcc3 Rc6
2NN2Q1/pR1N1N1B/RB1q2N1/4B1N1/rn1rrb2/1p1n3b/6K1/1k2brbB w - - 0 1 illegal: No proof kernel
4Qq2/1r2Rn1R/1q3r2/3p3B/p2pbB1b/r2B1B1N/k2KNR2/B2BnRb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 e4 Ke7 h4 Ke6 c4 f5 b4 g5 b6 f4 b5 f3 c5 g3 h5 f2+ Kd2 d6 c6 g4 c7 g2 h6 g3 h7 Nf6 b7 Ne8 b6 Nc6 b8R Qd7 b7 Qf7 Qa4 Ne7 Nc3 Qf5 Nh3 g1B Bd3 f1R Ne2 g2 Qc6 Rg8 h8B Rg7 Qb5 Bd7 c8B Nd5 Qa4 Be7 Qc6 Kf7 e6+ Kf6 Qb5 Ke5 Rh2 Bh4 e7 Ke6 e5 Nb4 Qa4 Kd5 e6 Qf8 Rh1 Nf6 e8B Nc2 e7 Bf5 Bh5 Ng8 e8B Be4 Bcg4 Ne1 Bf3 Nh6 Bd7 Kc5 Re8 Nf7 Bdg4 Rf2 Qd7 Kb4 Re7 Kb3 Qe8 Rf1 Rb1+ Ka2 b8R Rh7 Be5 a5 Bf4 d5 Bb2 Ra7 Ba1 a4 Re5 Rb7 Re7 Rh6 Rh2 Rc6 Rc8 Rc3 Rcc7 Ra3 Rbc1 Bgf2 Rd1 g1Q Rg2 Qh1 Rb1 Bg1 Rf2 Nh6 Rh7 Nf7 Re7 Qh2 Bf5 Qg2 Bc2 Qg6 Bd1 Qb6 Rc1 Bc2 Bd3 Bb1 Bb5 Bf5 Bd3 Be4 Rg2 Bf5 B1c2 Qe6 Bd6 Ne5 Bfe4 Nf7 Bc7 Rf4 Bef3 Qb6 Rf2 Ng2 Rcf1 Be4 Bd1 Rf6 Bf4 Ne1
2n2qRN/5r2/1Kb2bN1/p1Q1p2N/RR4p1/R2B1N1N/q2B1rk1/n1N3nr w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 Ke3 Kg6 Kd4 Kh5 Kc5 Kh4 b4 a5 d4 g5 f4 e5+ d6 g3 b6 g4 f5 c6 f6 g2 b5 e3 f7 e2 b7 e1Q d5 Bd7 b6 Rh6 Ra4 Be8 Bd2 Qg5 Bd3 Qg6 Nc3 Qh5 Qc1 Qg5 Nh3 g1N Na2 Be7 f8N Qf1 Ng6+ Kh5 Qc3 Bf8 Nc1 Ne7 d7 Qgf6 d8R Nc8+ d6 Bg7 d7 Ra7 Qc2 Qg2 Qc3 Bf7 Rg8 Bd5 d8N Bh8 Ne6 Qf8+ Ne7 Kh4 Ng7 Rf6 Nh5 Rf2 Qc2 Nf3 Re1 Ng1 Re3 Bf3 Nb3 Qh1 Ng7 Ne2 Bb5 Qf5 Ng5 Ra6 h3 Kg3 h4 Qb1 h5 Qf4 h6 Qf8 Nh5+ Kg2 h7 Bf6 h8N Ra8 Nh3 Qa2 Bc1 Ra7 Rc3 Be4 Bd3 Rf3 Bd2 Nd7+ Kc4 c5 b8N Bb7 Kb5 c4 Nbc6 Rf2 Ncd4 Nc5 Neg6 Be4 Qc1 Rf7 b7 Bf3 b8R Bd5 Na1 Nb3 Nf3 Bc6+ Ka6 Re7 Rbb4 Rf7 Rc2 c3 Rb2 Nbd4 R2b3 c2 Rba3 Nb3 Qb2 c1R Qc2 Bd7 Qc5 Rh1 Kb7 Ng1 Kc7 Nd4 Nb3 Nc2 Nc1 Na1 Kb7 Bc6+ Ka6 Nd6 Kb6 Nc8+
bNN4N/p2qQ1r1/2n3B1/BRp2qN1/rBn2R2/2b5/1pK1N1bq/B4N1k w - - 0 1 illegal: No proof kernel
N2r4/4b1pb/3QN1K1/1n2N2n/NpN2qB1/bpBB2k1/b4R2/1RNnB2r w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 c5 a4 b5 h4 f6 d4 c4 a5 c3 a6 f3 h6 c2 h5 b3 a7 b4 h7 f2 h6 Na6 Bb2 c1B Ra2 Qc7 Bc3 Rb8 a8N Bb7 Kf5 Rc8 e4 Be7 e5+ Kd7 e6+ Kd6 Ne2 Ba3 Nc1 Rd8 Kg6 f5 Bd3 f1N Rf2 Bf6 e7 f4 e8B f3 Bd7 Rc8 Bg4 Bb2 Be1 Qc4 Nc3 Nc7 Na4 Be7 Bc3 Nf6 Rg1 Rhe8 h8N Ne3 h7 Rcd8 Rh1 Bc8 Be1 Be6 Nf7+ Kd7 h8N Ba3 d6 Nh5 d5 Nb5 Rhf1 Qf4 Qd2 Nd1 Ne5+ Kc8 Nc4 Kd7 Nf7 Rh8 Rg2 f2 Nfe5+ Ke8 Rh2 Bg8 d7+ Kf8 Rfh1 f1B d6 Be2 Rf2 Bf3 Bdf5 Be4 Qd4 Bc2 Bd3 Bb1 Rg1 Ba2 Rgf1 Rb8 d8N Ke8 Ne6 Rd8 Rb2 Rh7 Rff2 Rh8 Rb1 Rh7 Nf7 Kd7 Bc3 Kc6 d7 Rh8 Qb6+ Kd5 Nfe5 Rh7 Bde2 Ke4 Qd6 Nf6 Be1 Rh1 Bc3 Nh5 Be1 Rf8 d8B Re8 Bb6 Rd8 Bd4 Qf3 Nf8 Kf4 Bd3 Kg3 Bdc3 Qf4 Ne6 Bh7+
b1R2bNk/2B2p2/R2pQpn1/3rN3/1b1n4/1N1K1Bnb/1rq1B3/N2N1BN1 w - - 0 1 legal: proof: f4 c5 a4 h5 d4 cxd4 g4 b5 gxh5 Nc6 axb5 Nb8 f5 Nh6 f6 exf6 Qd3 Ng8 Qd2 Bc5 Qd1 Bf8 Kd2 a5 e4 g5 b4 d3 h4 a4 c4 g4 b6 g3 b7 a3 b5 a2 c5 g2 b6 Nc6 b8N Ra4 b7 Rb4 e5 Qb6 h6 Ra4 h5 Ke7 e6 Na5 c6 Rg4 h7 Ra4 h6 Rd4 c7 Qb5 Qg4 Rd6 Na6 Bg7 b8N Kf8 e7+ Ke8 Nc5 Ba6 c8B Qb6 Nb3 Qc6 Bb7 Qe4 Nc3 Rd5 Nd1 Nc6 Qe6 Nd4 Nc6 Bf8 Nb4 d6 Nc2 Qf5 Kc3 Bb5 Be3 d2 Ba6 Bd7 Bae2 Qf2 Kd3 Bc8 Rc1 a1B Rh2 Bc3 Nca1 Ba5 Rc6 Bb7 Ra6 Ba8 Bf3 Bb4 Rh5 Ra5 Rc5 Ra2 Rc1 Rb2 B1e2 Nb5 Bb6 Nd4 Nh3 g1N Bc7 Qg2 Bf1 Nge2 Ng1 Ng3 Bb6 Nc6 Bg4 Bg7 Rc4 Nd8 Rc8 Qh2 Bc7 Qf2 Ne3 d1B Bh5 Bg4 Nd1 Bh3 Bg4 Qc5 Bge2 Qc6 Qc4 Kd7 e8B+ Ke7 Bd7 Kf8 Bdg4 Qc5 Qe6 Ne7 Bh5 Rg8 h8N Qc1 h7 Qc2+ Kd4 Bh6 Ng6+ Kg7 h8N Kh7 Bhg4 Bf8 Bgf3 Ndc6+ Ke3 Qc1+ Kd3 Nd4 Nf4 Rg4 Nhg6 Rg5 Nd5 Qc6 Ne5 Rf5 Nd7 Ng6 Ne7 Kh8 Ng8 Rd5 Ne5 Qc2+
1K3kn1/Bpp1bNb1/r1q5/bBRRQ3/Br1n2r1/1b2NBN1/2N1p3/N1N5 w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 g5 hxg5 d5 bxa5 dxc4 Ke2 h5 Ke3 e5 g4 c3 f4 h4 a4 c2 d4 h3 a6 h2 d5 Rh6 g6 Qe7 g7 Rh4 f5 Qe6 f6 Qd7 a5 Rh5 d6 Rh8 f7+ Kd8 g5 Qa4 g6 Nh6 g8B Qb3+ Nc3 Qc4 g7 Qd5 a7 Qc4 d7 Ke7 d8N Nd7 a6 Qc6 Na2 Rh7 Qh5 Nf6 Ne2 Qe6 Ng3 Qg4 Bb5 Qf5 Rd1 h1R Rd5 Rb8 a8N Bd7 a7 Rh8 Nb6 Rh2 a8N Qf1 Nc4 Rf2 Na5 Rf4 Nb3 Rc8 Nb6 Rf2 Nc4 Ra8 Bh7 Rh2 g8B Bg7 f8N Rh4 Nf7 Qg2 Ne6 Ra6 Ned4 Be6 Bb2 Rf4 Rc1 Kf8 Na1 Rg4 Qh2 Qh1 Bg6 Rh7 Bh5 Rh8 Bh7 Nfg8 Bc3 Qg2 Ba5 Qh1 Bb6 Qg2 B7g6 Qh1 Ba7 Nf5+ Ke2 e3 Kd3 e2 Ne3 e1B Kc4 e4 Kc5 Rh4 Bf3 Ba5 Ba4 Rg4 Qh5 Nfe7 Qe5 Rhh4 Bh5 Nf5 Be2 Rg5 Bhf3 Rgg4 Beb5 Qg2 Rg1 c1B Ndc2 Bcd2 Nc1 Bdb4+ Kc4 Be7 Rd1 Bd7 Rc5 Nd4 Kd5 Qh1 Nc4 e3 Rd2 e2 N4e3 Nb3 Rd1 Bc6+ Ke6 Bd5+ Kd7 Nd4 Kc8 Bb3 Kb8 Qg2 Bfc6 Qe4 Rd2 Qg6 Bf3 Qc6 Rd1 Nf5 Rd2 Rb4 Rd1 Rhg4 Rdd5 Nd4
NNB2rB1/bb2q1Q1/2p2R2/r3B2B/1k6/Rn1nb3/2K1qppb/BBN1N3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 fxe5 dxc4 h4 Kd7 a4 Kc6 d4 f5 Kd2 b5 e4 g5 h5 c3+ Kc2 f4 a6 g3 a5 g2 e6 f3 a7 b4 e5 f2 d5+ Kc5 d6 g4 e7 g3 e8B Ba6 d7 Ne7 e6 Rh6 Bg6 Nf5 e7 Bg7 e8B Rh8 h6 Nh4 h7 Nf3 Bf4 Bc8 a6 Qg5 d8N Bh6 Nc6 Bb7 Na3 Qe7 Bc4 Nd2 Be5 Rf8 h8B Nd7 Nb8 c6 Ne2 g1B Bg8 g2 Nc1 Bh2 Qg4 Nb3 B6h7 B6f4 Bh5 Be3 Qg7 Bd4 Rd1 Be3 Rd6 Bd4 Bf4 Ne5 Rf6 Nd3 Be5 Be3 Kd1 Bd4 Nc2 Kb5 Ne1 c2+ Ke2 Kc5 Ra3 Be3 Na2 c1B Kd1 Bb2 Nc1 Bbd4 Be4 Na5 Bf5 b3 Bfh7 b2 Be4 Nf4 Bb1 Kb4 Kc2 Nb3 Nd7 Rab8 a8B Nd3 a7 Rbd8 Nb8 Rd5 Bc7 Ra5 Be5 Ba6 Bb7 Bb6 a8N Ba7 Bc8 Bb7 Ba2 b1Q+ Kd1 Qa1 Kc2 Qd4 Bb1 Qe4 Ba1 Bg3 Rf3 Be5 Qh6 Bh2 Bhe5 Bd2 Qg7 Qe2 Rf6 Bde3+
N1K1b2R/2n2N1b/kNN1Q1q1/2q1N2N/3RN1nN/4bBqr/r2b1p2/4n1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8N a3 g5 h3 g6 a2 g7 c2 d5 Rh4 d6 Ra4 Qd5+ Nc6 Nd2 Nf6 g8N Qe7 d8N+ Kb8 d7 Na7 b7 Bh6 Be2 Ng4 Nf7 Qc5 d8N Bd7 Nc7 Be8 Ne5 Rh5 Ba3 c1B Ne4 Bd2 Rd1 a1N Qe6 Nc2 Ndf7 Be3 Bb4 Ra2 Na8 Rh4 Rd4 Bd2 Bd1 Ne1+ Ke2 Bg5 Ngf3 Rh8 Nh4 f3+ Kf1 f2 Ke2 f4 Ngf6 Rh6 Nh5 Rh7 Ba5 Bh6 Bb6 Rh8 Rg1 h1Q Rg3 h2 Rh3 Qc8 Bc5 Qg1 Bb6 h1B Bc5 Nc2 Kd3 f3 Kc4 f1Q+ Kd5 Bhe3 Kd6 Qff2 Ke7 Qc6 Kd8 Qfg3 Rh2 Ne1 Bb6 Nc8 Bc5 Nb6 Rh3 Ka7 b8N Bb4 Nbd7 Bbd2 Rh2 Kb7 Rh3 Nd5 b6 Ka6 b7 Qb6+ Kc8 Nc7 Rh2 Qd6 Ndb6 Bg2 Rh3 Bf1 Rh2 Bd3 Be2 Qf8 Rh1 Qg7 Rh3 Qg6 b8N+ Ka5 Nbc6+ Ka6 Bd6 f2 Bf3 Qf1 Rh1 Bb1 Rh2 Qc4 Nhf6 Qd5 Ng2 Qh3 Neg5 Bc1 Nec4 Bf5 Nge4 Qgh7 Bg3 Qb5 N4e5 Qc5 Rh1 Q7h5 Bh2 Qg3 Bg1 Bcd2 Rh2 Qg5 Rh4 Rh6 Rh1 Rg6 Rh7 Rh6 Rh8 Rh3 Nh5 Bh7 Nh4 Qg6
q2q1rBr/B1RQ2pR/k4p2/2K1b2B/N2N4/4Br1B/1n1BqBb1/n2b3B w - - 0 1 illegal: No proof kernel
1bB3R1/2N1qbNR/N3NQ2/b1BKnp2/1NN1q1p1/6rN/1n2r1r1/1N1k3b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 h6 c4 b7 f2 b5 a4 h7 g2 b6 g4 Nh3 c3 Ba6 Nd7 b8N f1B b7 g1R Ba3+ Nc5 Nc6 c2 b8N Bb7 Nb4 Bc6 Bc8 Nh6 N8a6 c1B+ Qd2 Rg8 h8N Qe7 Ng6 Nd3 Ne5 Rg2 Rh2 Bb2 Qc3 Nf7 Ra2 Ba1 Rc2 Nb2 Re2 Nd1+ Kd3 Rg6 Kc4 Re6 Ng5 Qe8 Nc5 Be7 Nbd3 Bd8 Rh7 Ra7 Nh3 Rg3 Re3 Ke7 d6+ Kf6 d7 Qf8 Bb4 a3 d5 a2 d6 Bd5+ Kd4 Bg2 Nc4 Bh1 e5+ Kg6 Re2 Rg2 Re4 Ra3 Na6 Ba5 d8N Bb2 d7 a1Q Nbd2 Qc1 Nb1 Qf4 Bc5 Bc1 Ndb4 Nb2 Nbd2 Qf3 Nb1 Bf4 Re3 Re8 e6 Bb8 e7 Qe2 Rg7+ Kh5 Rg8 Kh4 Re6 Qf3 Rh6+ Kg3 Rh7 Be6 Qe3 Bd5 Qh6 Qe2 Qf6 Kf3 Ndc6 Qc2 d8N Ke2 Na7 Kd1 Nb5 Rag3 Nbc7 Nh8 Ke5 Bf7 Ne6 Qd3 Nd4 Ng6+ Kd6 Rd8+ Kc6 Rd7 e8N Re7 Ng7 Ree2 Nde6 Qe7 Ng1 Qc2 Kd5 Ne5 Nh3 Qe4#
R1q2R2/q1r2bNN/p1N1b1b1/b1K1N1N1/1n3n1k/2B5/pQNrr2N/1B5N w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 g4 h5 b4 e6 f4+ Kh6 f6 a3 g5+ Kg6 b5 h3 b6 c6 d6 h2 f5+ Kf7 g6+ Ke8 g7 Kf7 d7 a2 b7 h4 Bd3 h3 Qc2 Qe8 Bb2 Rh7 Nf3 Bb4 Na3 Na6 b8N Ba5 Rhf1 h1B Nh2 Ne7 g8N Nb4 Bc3 e5+ Kc5 e4 Qb2 e3 Nc2 Ned5 Ne7 e2 Rf4 e1R d8N+ Kf8 f7 Qd7 Be4 Re2 d4 Kg7 f8N Kf6 Nfg6 Kg5 f6 Bf3 f7 Bh5 Ne5 Bg6 Rf5+ Kh4 f8N Nf4 d5 Qc7 d6 Be6 d7 a6 Rg1 Rf7 Nh7 Rg7 Ndf7 Qa7+ Kd6 c5 d8N c4 Nbc6 Rc8 Nfg5 Rc7 Rf8 Bef7 Nde6 Rg8 Bd4 c3 Ng7 Rd2 Ra8 Re8 Rf1 Be6 Nd3 Bgf7 Nce5 Bg6 Nf2 Bgf7 Nhg4 h2 N7c6 h1B Nh2 Bg6 Bd3 Bhd5 Nh1 Bef7 Be4 Bde6 Bf5 Qb8 Kc5 Qb7 Na3 c2 Bc3 c1Q Bb1 Qc8 Rf3 Qg1+ Rf2 Red8 Nc2 Re2 Qc1 Rdd2 Qb2 Qg3 Rf3 Qe1 Rd3 Qg3 Rd8 Qd3 Rg8 Qdd7 Rf8 Qb8 Ne1 Qdc8 Nc2 Qa7+
R2K2b1/2RBR3/2q2n1N/1NqB3B/1NN2R2/p2q1nb1/4nQ1n/n2kBn2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 h3 g5 Kd2 h5 Ke1 a5 Bg2 Rh6 Bf1 Rf6 h4 Rf5 gxf5 g4 Bd2 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Bg7 Qd2 Bh6 Qd1 Bf8 Kd2 Kf7 Kd3 d5 e4 a4 b4 a3 c4 h4 g6+ Kf6 e5+ Kg5 g7 h3 b6 h2 c5 g3 b5 Kg4 b7 g2 b6 Qd7 c6 Ne7 g8N Qc7 f6 Bd7 f7 Nf5 e6 Bc5 f8R Ne3 e7 Be8 Qc2 f2 Nf3 g1N Ne5+ Kg3 Bd2 f3 Nc4 Bd6 Be1 Nd7 b8R Bf7 e8B Nf6 Nh6 Bg8 b7 Qc8 Qd2 Nc2 c7 Bf4 Ra2 Na1 Bh5 Be5 Qb2 Kf4 Bh3 f1N Bd7 f2 Ra8 Nf3 b8N Bd6 Rg1 h1Q Nc3 N1h2 Nc6 f1N Rg7 Qg1 Be6 Qa6 Nb4 Qc6 c8B Qg5 Ke2 d3+ Kf2 d4 Re7 d2 Bd5 d1Q Nb5 d3 Bd7 d2 Rfc8 Be5 Rc7 Qb3 Ke2 Qd1+ Kd3 Qb1+ Qc2 d1N Rb2 Nc3 Ra2 Qc1 Qf2 Qg3 Re2 Qh3 Re3 Ne2 Re4+ Kg5 Rd4 Bg3 Rf4 Qf5+ Be4 Qfc5 Bd5 Qd1+ Bd2 Nfg4 Ke4 Kh4 Kf5 Kh3 Nd4 Nf6 Nb5 Qb3 Be1 Qc3 Qd4 Kg2 Kg6 Qd3+ Kg7 Ne3 Kf8 Kf1 Qb2 Ng1 Qd4 Ke2 Qb2+ Kd1 Qf2 Ne4 Ke8 Ne2 Kd8 Nef1 Ref7 Nf6 Rg7 Nc3 Re7 Ne2
7n/1B1Rn1N1/1k1bp2q/6Bq/QN1NR2r/3RBp1n/R1B1N1b1/q4b1K w - - 0 1 illegal: No possible last move
n4NB1/nb1b4/pBRRnK2/5B2/1qpQr2k/RrN3R1/1N1p1N2/r2B4 w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 b5 h4 gxh4 a4 Nh6 axb5 Ng8 Be3 c5 Qe2 c4 Qd1 Bh6 Bc1 Bd2+ Ke2 Bb4 Bh6 Bd6 Bc1 Bc5 dxc5 Kf7 Ke1 Ke8 Rh2 Nc6 Kd2 Nb4 Rh1 Nxc2 Kc3 Kf7 f4 Kf6 b4 d5 g4 e5 c6 h5 g5+ Kf7 b6 e4 g6+ Kf6 b7 a6 b8R h3 g7 h2 c7 h4 b5 e3 b6 e2 b7 e1N Be3 h3 Qd4+ Kf7 f6 Kg6 f5+ Kh5 f7 Qe7 f8R Qe8 f6 Qe4 f7 Ne7 g8B Nb4 Rd8 Bd7 c8B Nbc6 f8N Nd3 Ra3 Na7 Be2+ Kh4 Bd1 Nf4 Bf2+ Kg5 Be3 Rh4 Bf2 Ne6 Be3+ Qf4 Bf2 Bc6 Rd6 Qe4 Bd7 Nec8 Be3+ Qf4 Bf2 Nb6 Rc8 Qf5 b8N Re4 Rc7 Bb5 Nc6 Rb8 Ne5 Na8 Rcc6 Rb7 Be3+ Kh4 Nd3 Qf6 Nb2 Qe7 Be8 Ba4 Bg6 Rb5 Bf5 Rb3+ Kd2 Qb7 Nc3 Qb4 Ke2 Bb5 Kf3 Ba4 Nge2 Bb5 Rg1 h1R Nf4 h2 Rg3 Rg1 Nh3 h1B+ Rg2 Re1 Nf2 Ba4 Qe5 Rg1 Bb6 d4 Qd5 d3 Qd4 Rf4+ Ke3 d2 Rg3 Be4 Rc5 Bb7 Rcc6 Rg4 Kf3 Nf4 Ke4 Ne6+ Ke5 Re4+ Kf6 Bb5 Bh5 Ra1 Bd1 Ba4 Rc7 Be8 Rcc6 Bd7
N2N3B/1pN1r1r1/2q4B/1Nrprn2/Q5B1/Kp2RR1R/1Rq3kB/b3n3 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 g4 d6 gxh5 Be6 b4 axb4 c5 Kf7 c6 Bd7 cxd7 c5 d4 cxd4 Kd2 Kf6 Kc2 Ke5 Kb3 Ke4 f4 g5 a4 e5 h4 d3 f6 d5 a5 g4 h6 g3 f7 d2 h5 g2 h7 Qc8 d8N Na6 h6 Qh3+ Nc3+ Ke3 f5 Kf2 f6 e4 Ne2 g1Q Nf4 e3 Rh2+ Qhg2 Ra3 e2 Nb5 e1R Be2 Bd6 f8R Be5 f7 Rc8 Nfe6 Ne7 Bg4 Bc3 Nec7 Rg8 h8R Re5 h7 Ba1 Ka2 Rgg5 Qa4 d1R Re3 b3+ Ka3 Nb4 a6 Re1 a7 Rg7 a8N Nf5 Bb2 Re7 Be5 Nd3 Rhh3 Kf1 Bh2 Qc2 Rhg8 Kg2 h8B Rh7 Rg6 Rg7 Rf6 Re5 Rg8 Qc6 f8B Qf2 Rf7 Qfc2 Rf6 Rd7 Bh6 Rg7 Re8 Ree7 Ref3 R1e5 Re3 Nh4 Rff3 Ne1 Ref8 Re4 R8f4 R4e5 Rd4 Nf5 Rd1 Rg5 Rb1 Rgg7 Rb2 Qe6 Na6 Rc5 N6c7 Qc6
2Rq1R1K/q3b2N/1q2QrbB/B1r1N2k/r1rqR1nq/6B1/2RN1NB1/n7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Qd6 Kf3 f5 g4 Kf7 e4 Kg6 b4 a5 d4 c5 g5 h5 e5 c4 b6 a4 b7 c3 b5 c2 b6 a3 e6 a2 e7 h3 e8N h4 Qe2 h2 Nf6 h3 Bg2 Qe5 d6 Nd7 b8B Nc5 d7 Rh4 d8R Nh6 b7 Nb3 Nh7 Kh5 g6 Be7 g7 Qd6 g8R Qb6 Be3 c1R Rde8 Rg4 d5 Rc6 Qc4 Ra5 d6 Qa7 d7 Ra4 Rgf8 Rc5 Rd8 Rh4 Ke2 f3+ Kd3 f2 Bd6 f1R b8N f4 Ke4 f3+ Bef4 f2 Nd2 Rg5 Re1 a1Q Nc6 Rd5 Re3 Qc3 Bb8 Na1 Be5 Bb7 Rc8 Qb2 Rc3 Qbb6 Rc2 Qd8 Bg7 Ba8 Ne5 Bc6 Ne2 Ba8 Rg1 h1Q Nc1 Qh2 Rh1 Qg1 Ncd3 h2 Rc6 Nf5 Bh6 Ne3 Rc8 Bc6 Ng4 Qdb6 Bg3 Rc5+ Kd4 Bd5 Ke5 Be4+ Qd5 Bg6 d8B Qb3 Ba5 Qbb6 Rb2 Rfc1 Ra2 R1c4 Rc2 Rf4 Nf3 Qd1 Re1 f1Q Ndf2 Qc4 Ree2 Qdd3 Nd2 h1Q Re1 Qcb4 Re2 Qd8 Ke6+ Rf5 Ne5 Rhc4 Qd7 Ng4 Re4 Rf4 Qd6 Qh4 Qa6 Bf5+ Kf7 Q3d4 Kg8 Bg6 Kh8 Rf6 Qe6 Qbb6
B1rrqnRb/1R1bN3/1R6/2Nb2n1/B1q1r3/R2B2Bb/N1rQN3/k2n3K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kc5 d4+ Kb4 e4 c5 g5 f5 e5 h5 b3 a5 b6 f3+ Kh2 f4 d6 a4 g6 f2 g7 a3 d7 c4 b7 a2 e6 f3 e7 h3 e8B c3 d5 h4 d6 c2 Bg5 c1R Bg2 f1B Nc3 Ka3 b4 Kb2 b5 f2 b6 Nf6 g8B Ne4 Qd2+ Rc2 Bc4 Bg7 Bf4 Ng5 Bg3 Qe7 d8R Nd7 b8R Nf8 b7 Bd7 Bc6 Ra4 Be2 Re4 Bd3 Bg2 Rdc8 f1Q Nge2 Qff7 Rhf1 Qc4 Rf6 Rg8 Kg1 Bh8 Kh2 Bf1 Kh1 h2 Rf7 Bfh3 Bd5 Bdg4 Ba4 Qe8 d7 Bf5 d8N Bd7 Rc1 a1R Ne6 Rb1 Na2 Ka1 Re1 Rd1 Nc5 Rg6 Ra8 Rc6 b8N Rc7 Rd8 Rc8 Nc6 Bhe6 Kg2 h1N Ne7 Nf2 Ra5 Bf5 Ba8 h3+ Kg1 h2+ Kg2 Ng4 Kh1 Ne3 Rf6 Bh3 Rb6 Rdc1 Ra7 Nd1 Rab7 Rb1 Rf1 Rb4 Rf3 Rb5 Ne6 Rd5 Nc5 Qg6 Nd4 Bb5 Re6 Nfh7 Rg8 Rdd8 Bf1 Nf8 Ra3 Bd7 Bd3 Qe8 Rc6 Bhe6 Ne2 Bd5 Kg2 h1B+ Kg1 Bg2 Rcb6 Bf1 Kh1 Bfh3
R1N4Q/1Nk2q1r/nnNN3B/1br4K/nBR4b/qR1B4/B1R2r2/n4br1 w - - 0 1 illegal: No possible last move
1rb1Bb2/B4nQ1/4N1pn/Nnq1r3/N6R/b2r4/1rrNBR2/k1K1RBR1 w - - 0 1 illegal: No possible last move, all moves rejected
3NN3/3NK3/nB2Q2R/1RB1b1br/Rn2k3/1bn1Bb1N/1qp1B2q/Rr3b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 h5 g4 c5 b4 f3 g5 f5+ Kf4 c4 e4 f2 g6 h3 g7 h4 b6 a4 b7 h2 b5 h3 b6 a3 Nc3 a2 Be2 f1N Be3 Rh5 Qb3 Qf6 Na4 c3 Nc5 c2 Nd7 Na6 b8R Nd2 b7 Ne7 g8R Nb1 Rg4 Nc6 Rh4 Nc3 e5+ Kc7 e6 Kd6 e7 Ncb4 Re1 a1B e8N+ Ke7 Rg4 Bb2 Ra1 Bh6+ Rg5 Qb6 Ke5 f4 Qc4 Ra7 Ra8 f3 b8B Rb7 Ba7 f2 Ra4 Qb5 Bc5+ Kf7 Kd6 f1B Rf5+ Kg6 Ke7 Bf4 d6 Rb8 d5 Rb6 Ndf6 Be6 d7 Rb8 d6 Rb7 Qa2 Bb3 Re5 Rb8 d8B Qb6 Re6 Kf5 Nd7 Ba1 Rh6 Ke4 Ra5 Qb7 Bdb6 Bb2 Nf3 Ba1 Rg1 h1B Rb5 h2 Rg4 Bhg2 Ng1 h1Q Nh3 Bf3 Rg1 Qh2 Rh1 Nd1 Rg1 Bae5 Rh1 Ba4 Qe6 Nc3 Ra7 Qd5 Rg1 Qa2 Rg4 Bb3 Rg1 Nc7 Ra4 Qb2 Rh1 Na6 Rg1 B1g2 Rga1 Bf1 Nf8 Rc8 d7 Rc6 d8N Rd6 Ba7 Rd1 Nd7 Rb1 Bab6 Bg5+
NR1B1KqQ/q1N2BRB/1q4qR/kr5r/nnpq2N1/2R5/1N1b2B1/3b3r w - - 0 1 illegal: No possible last move
2B1nR2/Kr2b1p1/1rNN3Q/3bnq1B/kN5q/2BRn2R/NRbB4/1bb5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 c5 e4 f5 h4 a4 d6 a3 b6 Kc6 e5 a2 h5 f3 Ke3 f2 d5+ Kb7 e6 c4 Kd4 Ka6 Kc5 f4 e7 g3 e8B g2 b5+ Ka5 b7 f3 h6 c3 b6 c2 h7 Ra7 Nc3 Qd7 Ne4 Ra8 Ne2 g1Q Qd2+ Ka4 Rh3 Nc6 b8R Be7 b7 Qh1 Kb6 Bf8 N2c3+ Kb3 Qh6 Be7 Bh5 Nf6 Ba6 f1B Bd2 f2 Rd1 a1N Na2+ Bd3 Bc3 Rf8 h8R Qf5 d7 f1B d8B c1B d6 Ka4 d7 Bb1 Rdd3 Bg2 Nd6 Ne5 Bc7 Bf3 d8N Bd5 Nc6 Nc2 Ncb4 Ne8 Rg8 Rf6 Rf8 Bce6 Bd2 Ne3 Bd8 Rg6 Bc3 Bh4 Bg5 Bg8 Bf4 Be7 Bg5 Bh7 Bf4 N3g4 Bfd2 Qhe4 Rc8 Rf6 b8N Ne3 N8c6 Rb8+ Ka7 Qh4 Rc7 Rg6 Bc8 Re6 Rb7 Rg6 Nc2 Rf6 Rb2 Rg6 Nb5 Re6 Nc2b4 Bg6 Na5 Reb6 Nac6 Qff4 Rd4 Bgc2 Nd6 Qf5 Rd3 R8b7+
1R1B3k/1R2nbR1/N1Knr1B1/6N1/r2B2Bn/1NN2q1q/2p2bbR/Qb5r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 g4 f5+ Ke5 Kf7 e4 Kg7 b4 a4 d4 f3 b6 c4 g5 h3 b5 c3 d6 h4 Kd5 h2 e5 a3 b7 a2 d7 f4 e6 h3 g6 f2 b6 f3 e7 Rh6 e8R Ra4 Re1 Nc6 b8R Qf6 d8N Kh8 b7 Bc5 Be3 Bf5 Bd3 f1N Ne2 f2 Ne6 Nd2 Reg1 f1Q Ng5 Nd8 Nc1 Nf3 Nb3 Nf7 Qe1 Be6+ Kc6 Nh4 d5 Nd6 Bd4 Bf7 Rg4 c2 Nc3 Qg2 Rd1 a1R Rb1 Qf3 Rg2 Qh5 Rhg1 h1B Rh2 Bg2 Bf5 Qf3 Bg4 Qe5 Rb2 Qg7 Qf1 Re1 Rb1 Re6 Rb2 Bb6 Qa1 Rh5 Bf2 Qf8 Bd4+ Nf6 g7+ Kg8 Rhh1 h2 Rbb1 Qh3 Rb2 Nde4+ d6 Nd5 Rbb1 Bf1 Rg2 Bc4 Rhg1 h1B Rh2 Bg2 Rb2 Re5 d7 Nd6 d8B Bc5 Ra8 Re4 b8N Re6 Na6 Ba7 Rb8 Rh8 Nbc5 Ba2 R2b7 Bb1 Nb3 Rhh6 Be5 Bf2 Bd4 Ref6 Nge4 Kh7 g8B+ Kh8 Ng5 Rh5 Bh7 Rh6 Bc5 Re6 Bd3 Bg6 Ba7 Qff3 Bab6 Bf7 Bg6 Rh7 Bd4+ Rf6 Nge4 Qhg3 Rh3 Bh1 B6f5 Ng6 Bh5 Qh4 Rg5 Bg2 Bhg4 Rh5 Nec5 Rh6 Ne6 Qhg3 Rh1 Rh3 Be4 Nh4 Rg7 Qh2 Ng5 Re6 Bg6 Qhg3 Ra8 Rh2 Rab8 Qh3 Rg1 Bf1 Rg2 Rh1 Rh2 Bg2 Qa2 Be1 Qb2 Bf2 Qa1 Ne7+
B1R1N3/b6b/1RK1bN2/2p1rqp1/qB2nnRr/2BN1n1Q/3qk2N/1R4B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 h4 Kd6 b4 Ke5 d4+ Ke4 h5 g5 d6 c5 d5 a5 d7 f5 b6 f3 d6 a4 b7 f4 b5 a3 h6 a2 b6 Rh7 Nc3+ Kf5 e4+ Ke5 Bd2 Kd4 e5 Rf7 e6 Nc6 b8B Ra7 b7 Ra5 e7 Rh7 e8N Rb5 Qb3 Rb4 Rh4 Re7 h7 Ne5 h8B Nf6 Nd5 Ng6 Rb1 a1Q Bg2 Qa4 Qa3 Qda5 d8R Re5 d7 Bd6 Bg7 Rc4 Bb4 Bc7 Bh8 Bb6 Bd6 Ba7 b8R Ke4 Rb6 Rd4 Qc1 Kd3 Qf1+ Kc2 Bh1 Rde4 Qh3 Kd3 Ne2 Rc4 Ng3 Rd4 Nf1 g3+ Kg1 f2+ Kg2 Rde4 Kf3 g2 Nh2 f1B Rg4 Rd4 Bb8 Ne4 Ndf6 Rc4 Ba3 Qd2 Bb4 Bb7 Bc7 Bd5 Rc8 Bg8 d8N Bh7 Nf7 Rd4 Rh4 g1N+ Kg4+ Ng3 Ba8 Ke2 Bd6 Nf3 Bb8 Rf5 Ne5 Ne4 Nd3 Re5 Bc7 Ng1 Bb8 f3 Bd6 f2 Bb8 Re6 Kf5 Nf3 Rg4 Bg2 Bg3 f1Q Bf2 Rc4 Bg1 Qf2 Qh4 Bh3 Qh6 Rd6 Qh4 Rd5+ Ke6 Nf4+ Ke7 Re5+ Kd8 Qa5 Kc7 Qa1 Kc6 Rd4 Rg3 Be6 Rg4 Rc4 Qh3 Qa4+ Kb7 Qh4 Bg7 Qh5 Bh8 Qg6 Bg7 Qf5 Kc7 Qad1 Kc6 Qa4+ Kb7 Nh5 Rh4 Nf2 Nd5 Ree4 Bgc3 Re5 Ndf6 Rg4 Kc7 Ne4 Kb7 Rg3 Rf4 Rg4 Kc7 Rh4 Rg4 Nf4 Kb7 Qa1 Kc6 Qa4+
2B3k1/2NR1b2/nKR1n2B/1pb1NpNR/2bb4/2NRqB2/B7/brr1n1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
4KB1b/2rr2RR/p2B4/1kB2r2/4N1Br/r2N1N1n/bp2Nq1R/n1n1Q2R w - - 0 1 illegal: No proof kernel
r1R3Q1/1Rn2rqr/nNN5/1BKb2n1/R1R1Np1B/2NB1q2/1b3pB1/n3k3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 g6 a4 d7 f3 b7 h3 b5 c4 g7 a3 b6 h2 e6 h4 e7 h3 e8B a2 Bg2 Kd3 Nc3 Nf6 g8B Ba3 Bh7 Rf8 Nge2 Ra4 Ne4 c3 Qb3 Qe7 d8R+ Bd7 Rc8 Na6 b8N Bb2 b7 Bc6 Qg8 c2 N2c3 Rf7 Nd7 Nd5 b8R Ndc7 Rb7 Bd5 Nb6 Qf6 Rf1 h1R Bc6 h2 Bb5+ Kd4 d3 Qg7 Bg5 c1N Bh4 Nb3 Rfc1 Nbc5 Rc2 N5e6 Rcc1 Ke5 d4+ Kf4 Bg6 Kg4 Ke3 f2 Rc2 f4+ Kd3 Bc6 d5 Ng5 d6 Bd5 d7 Ra3 d8N Ra5 Bf1 Kf3 Nc6 Ra4 Nf6 Ra5 Kd4 Ra3 Bgd3 Ra5 Re1 a1N Re4 Ra3 Ke5 Ra5 Ra4 Ke3 Rc1 Kd2 Rc2+ Ke1 Kd6 Nc5 Bg2 Ra8 Nfe4 N5a6 Bg3 Rf1 Bh4 h1Q Nb1 Qh3 Rcc4 Rh1 Nbc3 Qe3 Nd2 Qf3 Nde4 Nb4 Kc5 Rh3 Bg3 Rh7 Bh4 Nba6+
Bnb2QRR/3N1nr1/4bbNB/q1RB2p1/1n6/1pKR1qrp/1B2N3/1k5N w - - 0 1 illegal: No proof kernel
2rNBRN1/B1b1nR1p/q2B3B/pNb4K/nkNr2Q1/2p2n2/3bR2R/1b6 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 Kd6 d4 c5 f4 e5 g4 a5 f5 e3 Kf3 e2 g5 e1B Kg4 h3 b6 c4 g6 h2 g7 c3 b7 e4 b5 e3 b6 e2 Na3 Nd7 b8B+ Qc7 b7 Bd2 f6 e1B f7 Bh6 Ra2 Ra7 Ne2 Ne7 Kh5 Ra6 Ba7 Nb6 b8B Bb7 Bh3 Be3 Bd7 Nf5 Rd2 Nh4 Nc4+ Ke7 Bb5 Qc6 d6+ Ke6 d7 Kd5 d8R+ Bd6 Rf1 h1N Re8 Na4 Ra2 Rf8 g8N Bh2 Re7 Rc8 f8R Bd6 R1f7 Ng3+ Kg4 B3f2 Bh6 Ngf5 Kh5 Be3 Re4 Ne7 Rc2 Qb6 Be8 Beg3 Qg1 Nf3 Rb2 Bgf2 Qg4 Bdg3 Bc7 Qe6 Bcb8 Rd6 Rd2 Rd7 Bc7 Kc6 d5+ Kb5 d6 Kb4 Nd4 Be1 Rg2 B1d2 Nb5 Bc5 Ree2 Be4 Rh2 Bb1 Bcb8 Rdd8 d7 Qa6 Bbf4 Rc6 Be5 Rd6 Bef4 Rc8 d8N Rd4 Bfb8 Be5 Bc7 Bf6 Bcf4 Be5 Bg3 Bb8 Bd6 Bc7
2RR3n/Q1b1qBNb/5b1r/p7/3p1n1R/1pr1N1NN/2Bpn2R/k1B2BK1 w - - 0 1 illegal: No possible last move
1N1R2r1/n3nrN1/Nq1qB2b/2qR1R2/1Bp1K2p/3Rp3/1Nk1p1Q1/1b3B1B w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 Ke3 Ke6 g4 Ke5 f4+ Kd5 b4 a5 d4 e5 g6 c5 g7 h5 g5 h4 b6 c3 b7 a4 g6 c4 b5 c2 f5 a3 b6 a2 f6 Ra4 f7 Be6 Nc3+ Kd6 d5 Kc5 d6 Kb4 d7 Kb3 Nf3 Qe7 d8R Bc8 Ba3 Rh6 Qd2 c1Q Rh3 Bf5 Bb4 Qe6 Nd1 Nc6 b8N Qf6 b7 Qe6 Nb2 Na7 Ng5 Rh8 Na6 Qd6 b8N Qb1 Ne6 Ne7 g8B Ra5 Bh7 Rg8 g7 Rc5 Bg6 Rc7 Qg2 Rb7 Bh5 Bh7 Bf3 Rc7 Ke2 e3 Bc6 Qf5 Rd1 a1Q Rd5 Kc2 Ba8 Qg5 Kf3+ e2 Bc6 Qa5 Rg3 Ng6 Ke4 Qb6 Rgd3 Qge7 Bb7 Qdc5 Bc6 Qed6 Bb7 Rh8 g8B Bh6 f8R Ne7+ Rf5 Bg6 Bf7 Rg8 Ng7 Bh7 Be6 Rd7 Kf3 e4+ Kg4 e3 Kf3 Nec8 Bc6 Rf7 Ke4 Ne7 Kf3 Qcb5 Rb3 Kb1 Qg1 Kc2 Rf4 Qd7 Rd4 Bd3 Rf5 Kb1 Qg3 Bc2 Rbd3 Kc1 Be4 Kb1 Rd5 Q5c5 Qg5 Kc1 Kf4 Kb1 Bh1 Qdd6+ Ke4 Kc1 Qg4 Bb1 Qg2 Kc2
3N3k/1npr4/4Bpr1/6NK/nR2B3/qbb1R1BB/1n1q1pp1/RQRN3N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 g5 Kf3 b5 a4 b3 d4 b4 e4 b2 h4 b3 h6 f6 e5 Kf7 h7 Kg7 h5 Qd7 e6 Bb4 Kg4 f3 a5 f2 h6+ Kg6 d6 Qa4 d5 Qc6 a6 Bb7 d7 Qb6 d8N Ba3 d6 Nd7 a7 Qd4+ Bf4 Bd5 e7 Nc5 d7 Nb7 Nf7 Qd2 e8B Bb4 d8N Bc3 Bg3 Ne7 Bd7 Nc8 Be6 Nb6 Bh3 Rg8 h8R Nc4 h7 Kg7 Kh5 g4 Ne2 Rc8 a8B Rb8 Bh2 g3 Ng5 g2 Bg3 Rc8 Qc2 Rb8 Rc1 Rc8 Na3 b1Q Nb5 b2 Qe4 Qa2 Qb1 Re8 Rf8 Qa3 h8R Re7 Re8 Rd7 Rhf8 Nca5 Rh8 Bb3 Rhf8 Nc4 Rh8 Ba5 Nbc3 Bb4 Nd1 Bc3 Bf4 Rb8 Ng3 Rc8 Nh1 Rb8 Qd3 b1N Bg3 Nb2 Qc2 Ba5 Qe4 Nc3 Qb1 Nca4 Rhf8 Bc3 Rh8 Nbc5 Be4 Rb5 Kg4 Ra5 Rh4 Nb7 Kh5 Ra8 B4f5 Ra5 Rb4 Re5 Be4 Red5 Bg8 Kh8 Re5 Ra5 Bge6 Ra8 Bg6 Rb8 Re3 Ra8 Be4 Rb8 Nc6 Rg8 Nd8 Rg6
B3n2Q/B1Br4/3b1NrN/1BK2BkB/3NQRq1/1r2r1n1/bB6/1n4r1 w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 h4 a5 bxa5 g5 hxg5 c6 a4 c5 Ra2 Qd7 Rb2 Qd8 Rb4 cxb4 axb5 Ra6 Rh6 Ra7 Rh1 Ra8 Kf2 Ke7 g4 h5 e4 f5 d4 h4 g6 Kf6 g7 b3 g5+ Kg6 e5 f3 Ke3 b2 d6 h3 a6 h2 d5 f4+ Kd4 f2 b6 f3 e6 Rh3 d7 Rh6 a7 Rh3 b7 Qe7 d8Q Kh5 g6 Nd7 b8B Ne5 d6 Qh4+ Kc5 Rg3 e7 Qa4 e8B Be6 Qd5 Qg4 Nd2 b1R Qe4 Rb3 Ne2 Nc4 Nd4 Nf6 g8B Bg7 d7 Kg5 Bh7 Na3 Bb5 f1R Bb2 Rd1 Rf1 h1N Qc8 f2 d8B Rge3 Bdc7 Bh8 g7 Nb1 g8N Ng3 Bh5 Ne8 Nh6 Be5 Bf5 Bf7 Qd7 Bg8 Qh7 Bd5 Qh8 Bc4 Rh1 f1R Rh2 Bg8 Rf2 Rg1 Rf4 Bd5 Bb6 Bg8 B8c7 Rd8 a8B Rd6 Ba7 Rg6 Nc4 Be6 Nb6 Bg8 Ne2 Rd7 Nd5 Ra3 Nf6 Ba2 Nd4 Rad3 Nhg8 Rb3 Nh6 Bd6+
3R4/KQN1Q3/N1N5/1q5n/1qk1BNbQ/n2Nrqp1/N1B1n3/N3r2r w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 exf5 a5 b4 g6 a4 Bg7 axb5 a4 Qf3 Bd4 Qb3 Bb6 Qd1 Ba5 bxa5 Qd7 Nf3 Qd6 Ng1 Qd8 g4 g5 f4 h6 f6 Kf7 f5 Ra7 Bb2 Ke8 Be5 Ra6 Bf4 Ra8 Ra3 Na6 Rg3 gxf4 g5 Nb8 g6 Kd7 Rg2 Ke8 Rg5 hxg5 Kf2 Kd7 h4 Kd6 d4 c5 a6 e5 f7 f3 Ke3 g4 f8Q+ Ne7 f6 e4 f7 g3 g7 a3 g8B a2 a7 a1Q b6 c4 b7 c3 h5 c2 h6 c1N h7 f2 Nf3 Qb2 Ne5 Nd3 Nd2 Nf4 Bg2 f1R Qf3 Qc7 Nb3 Nh5 Na1 Rg1 Nd3 Na6 b8N Nb4 Na6 Rc1 Rd1 Rb8 a8N Qcc2 N8c7 Kd7 d6 Kc6 d5+ Kb6 d7 Qf6 d8N Rb7 d6 Qfb2 d7 Qa2 Kd4 e3 Nc6 e2 d8N Ng6 Qe7 e1Q f8N Qcb3 Nfe6 Qab1 Nef4 Bg4 Rd2 Qbd1 Bb3 Nc2+ Kd5 Qf1 Ncb4 Na3 Na2 Rb8 Nc6 Rbe8 Qfe4 Qdf3 Bc2 Re1 Bh1 Qb4 Bg2 Rhg8 h8Q Re3 Qhf6 Rh8 Qh4 Qfb1 Nd8 Qb5+ Kd6 Ka5 Qb7 Q1b3 Nc6+ Ka4 Nh3 Ngf4 Rd1 Ne2 Nhf4 Qf1 Be4 Qf3 Qd8 Re5 Qde7 Re6+ Kd7 Rhh6 Kc8 Rh7 Bb1 Q3b4 Kb8 Rh8+ Ka7 Re5 Nc2 Kb3 Na1+ Kc4 Bc2 Nf6 Qg5 Rh1 Qh4 Re6 Ndc5 Nh5 Rd8 Nc1 Ncd3 Ree1 Bg6 R6e3 Be4 Ne2
NR6/N2p1k2/p3rnR1/r7/4bKb1/RQ1R1pR1/QqR1Q3/2qRB2b w - - 0 1 legal: proof: f4 g5 b4 c5 g4 b5 d4 cxd4 h4 a6 a4 e6 axb5 Bd6 b6 Nh6 b7 Ke7 b5 Kf8 b6 Bc7 Bh3 Be5 fxe5 Nf5 hxg5 Ke8 g6 Ne7 g5 Nbc6 Bg4 Na7 bxa7 Ng8 Bf5 exf5 Kd2 h5 b8R h4 c4 d3 Ke3 h3 c5 h2 e6 d2 e7 f6 g7 Kf7 e8R Kg6 c6 Bb7 c7 Ne7 g8Q+ Kh5 c8R Bg2 g6 Qb6+ Kf4 Qd4+ e4+ Bf3 g7 Kg6 Na3 Bg2 Nf3 Qd5 e5 Qa5 e6 Qc7+ Ne5+ Kh6 Qb3 d1B Nc4 Qb7 Nc6 Kg6 Ra3 Rh5 Bd2 Be4 Be1 Bg4 Nb6 Rg5 Rg1 h1B Rg3 Rh5 Rd3 Rg5 Kg3 Nd5 e7 Rh5 Qe6 Rg5 Rg8 Rh5 e8R Rg5 Qe5 Kf7 Qa1 Rh5 Qaa2 Rg5 Re6 Rh5 Rd6 f4+ Kf2 f3 Kg3 f5 Rg6 f2 Rh8 f1Q g8R Rh4 Rd1 Rh2 Rh3 Qc4 Rc7 Nf6 Kf4 Rd2 Rd3 Rh2 Qe2 Rh5 Qea2 Bgf3 Rg3 Bg4 Rg6 Rg5 Rbc8 Rb8 a8Q Rh5 Rcg8 Re8 Na7 Re6 Rb8 Qc2 Rc5 Qc6 Qb7 Qb2 Rc2 Qc5 Na8 Qcc3 Q7b5 Rg5 Ke3 f4+ Kf2 f3 Ke3 Rd5 Q5c4 Ra5 Kf4 Bef5 Qe4 Qd2+ Qe3 Qdc1 Qd2 Be4 Qe3 Qcb1 Qe2 Q1c1+
1K2B1Q1/R5b1/2r2NQ1/QQ1br3/1QN1nR1N/Q3nn1k/pQ3b1q/3r3r w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 Kf3 e5 Ke4 a5 d4 c5 h4 f3 h5 g4 f6 c4 d6 Ke6 h6 f2 h7 g3 f7 g2 b4 c3 g7 a4 d7 c2 d5+ Kf6 b6 Kg5 d6 c1N Kd5 a3 b7 e4 b5 e3 b6 e2 Nf3+ Kg4 Qd3 g1R Rh4+ Kg3 Rf4 e1B Nh4+ Kh2 Nd2 Na6 Kc6 Rg6 b8Q Qe7 d8Q Ne2 b7 Qe5 Nc4 Nc5 Kc7 Nh6 g8N Ng1 Nf6 Bg7 Qg8 Nf5 f8Q Be6 Qbe8 Ra6 b8Q Nf3 Qbb5 Ne4 Kb8 Rg5 Qg6 Rc6 Ra2 Qb2 d7 Bd5 d8Q Ne3 Qfb4 Re5 Qda5 Qe2 Bh3 f1R Bd7 Bf2 Be8 Kh3 Qdb3 Ra1 Qb2 Rd1 Qgf8 Rg8 h8Q Qd2 Qhh7 Rh8 Qhg8 Rh6 Ra1 Rhh5 Rc1 a2 Rc3 Bg3 Ra3 Qh2 Ra4 Bf2 Q4a3 Rhg5 Qfc5 Rg2 Qa5b4 Rgg5 Ra7 Rgg1 Q5a5 Rgf1 Qcb5 Rh1
4qQ1n/r2bKN1r/1kp5/1b1r1BR1/QNQ1N3/r1NNp2R/2b4N/1n3N2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 g4 Bb7 h4 Bc8 b3 Bh6 Bb2 Kf8 Be5 Nc6 Bf4 gxf4 g5 Nb8 g6 Bg5 hxg5 Ke8 Ke2 Kd7 d4 a5 f6 h5 g7 e5 b6 c6 b7 Kc7 g6 f3+ Ke3 a4 d6+ Kb6 b4 h4 d7 f2 d5 a3 f7 a2 f8Q h3 b5 h2 d6 Qc7 d8Q Ra4 d7 Ka5 b6 Rh5 Bd3 f1B Nf3 Rb4 Nbd2 Nh6 g8N Be2 g7 Rb1 Ne7 Rh4 g8N Rh5 Nd5 Rb3 Ngf6 Ra3 Nc3 Na6 b8N Nb4 b7 Kb6 Na6 Nf7 b8N Nh8 Nc5 Rh7 Nf1 Ra7 Rb1 a1R Qa4 Ra3 Ra1 Na2 Nba6 Nc1 Ra2 Nb3 Nb4 Nd2 Qg8 Nb1 Qdf8 Qd8 Qc4 Qe8 d8N Bf5 Nf7 Bd7 Rg1 h1B Rg5 Bg2 N3h2 Bgh3 Rb2 Bhf5 Rb3 Bg6 Bc2 Bgf5 Ncd3 Bg6 Kf2 e3+ Kg3 e4 Kf4 Bgf5 Qe6 Bg6 Ke5 Bf5 Kd6 Bg6 Nf4 Bb5 Nfd3 e2 Qd5 e1R Qc4 Qc8 Ke7 Rd1 Rb2 e3 Nfe4 Rh5 Ndf2 Rd5 Nfd3 Nd2 Rb1 Rh7 Rd1 Nb1 Rd2 Bh5 Rf2 Bd1 Rf3 Nd2 Bb1 Bb3 Bc2 Nb1 Rh3 Qa8 Bd1 Qc8 Bg4 Bc2 Bf5 Qe8+
3N3B/kpNq1N1p/3Nr1N1/N2QBK2/1br3R1/n1r3Q1/6B1/qnN1nq2 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Nh6 a4 Qd6 Ra3 Rg8 Rf3 Qd8 Rf4 gxf4 Bh3 Be6 Bf1 Bf7 h3 Bh5 g5 Bg4 hxg4 Rh8 Qb3 Ng8 Qc2 Nd7 Qd1 Nb8 Kf2 Kd7 Kf3 Kc8 Ke4 e5 d4 c5 a5 c4 g6 c3 g5 c2 f7 b3 a6 b2 g7 f3 f6 f2 d6 Ne7 g8N Bg7 f8N Qa5 d5 Qc3 d7+ Kc7 d8N Kb6 f7 Qh3 a7 Qh6 d6 Ng6 d7 Ne7 g6 Nbc6 Qd5 Qg5 Nh6 Bf6 g7 Rc8 g8Q Qg7 a8N+ Ka7 Ne2 Nb4 Rh4 Rc3 Bf4 c1R Rg4 Nc2 Nc7 Na3 Bg2 f1Q Nd2 b1N Nf5 Ng6 Nb3 Be7 Bg3 Bb4 Nd6 Nh4 Na5 Nf3 Ng6 Ne1 f8B R1c2 Nc1 Rc4+ Ke3 e4 Be5 R4c3+ Kd4 e3 Ke4 e2 Be7 Qgf7 B7f6 Qe6 Qg7 Re8 N8f7 Re7 d8N Qd7 Qg8 Re8 Bh8 Re6 Nf4 Rc4+ Kf5 R2c3 Qg5 Nec2 Qh4 e1Q Qg3 Qd1 Nce8 Ne1 Nc7 Qfe2 Ng6 Qa2 Qh3 Qa1 Qhd3 Qe2 Qg3 Qf1+
b3R2N/kNn1r2R/Bn4b1/5n2/Nb2R3/1Q1qqQN1/1Q3NKn/3b3N w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 b5 c4 f5 exf5 d5 cxd5 b4 a4 Nh6 a6 Ng8 a5 Ra7 Bb2 Rb7 Be5 Rb6 Bd6 Qxd6 axb6 Qd8 d4 Kd7 f4 c5 Kf2 e5 g4 h5 g5 e4 b7 Kc7 g6 Kb6 g7 c4 f6 e3+ Kg2 c3 f5 c2 a7 c1Q f7 e2 a8N+ Kb5 f6 b3 d6 b2 d7 Nh6 g8N Qc2 d5 Qcc7 d6 Qb6 Ne7 Na6 b8Q Nf5 Ra4 Rh7 Nh3 Nc7 Re4 Ka6 Qb3 Qe3 Nd2 b1N Nf2 Nc3 Nb6 N3d5 Na4 Nb6 Rh2 Bb7 Nh1 Bd5 Qb2 Bb3 Rh3 Bd1 Rh2 Nc8 Q8b3 Ka7 Rh3 Nb6 Rh2 Qe8 d8N Qb5 d7 Qbd3 Nb7 Rg7+ Ng3 Rh7 d8R Rg7 Re8 e1N+ Kh1 Nf3 Kg2 Rh7 Rh3 Nh2 Nh1 Qdd4 Ba6 Qdd3 Rg4 Rg7 Ne4 Rh7 Nef2 Rg7 Ng6 Bb4 f8N Re7 f7 Qh6 Rf3 Qhe3 Nd7 h3+ Kg1 h4 f8Q Nf1 Re4 h2+ Kg2 Bd6 Nf6 Bb4 Ng3 h1B+ Kg1 h3 Ng4 Qc2 Nh8 Nh2 Qff6 Qcd3 Qc6 Nd4 Rf7 Nf5 Rh7 Bhf3 Qcf6 Bc2 Qf8 Bfd1 Kh1 Nf1 Qff6 h2 Kg2 h1B+ Kh3 Bhf3 Nfh1 Nh2 Ngf2 Bh5 Kg2 Bg6 Q3c3 Bb3 Qf8 Bd5 Qcb3 Nd4 Qf3 Nf5 Nd8 Ba8 Nb7 Qdd2 Rg8 Qd8 Re8 Qdd3
B1n1rbBb/r1nQB3/2N2N2/1kn3Nr/2R2Q1n/qnQ5/4QQ2/1Kb3Q1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b4 f5 Na3 h5 Nb1 f3 Ra6 f4 Rg6 Bf5 gxf5 Bc5 Rg3 Bf8 Rg4 hxg4 d4 Kd7 Kd2 c5 Kc2 a5 h4 g5 e4 c4 d6 f2 f6 a4 e5 c3 e6+ Ke8 b6 g3 h5 f3 b5 g4 h6 a3 h7 a2 b7 a1B e7 Kd7 e8B+ Ke6 b6 Kd5 d7 Kc6 f7 g2 d5+ Kc5 d6 g3 Rh4 Ra6 Ba3+ Kc6 Nd2 Ra7 Rc4+ Kb5 Ne4 Qh4 d8Q+ Nd7 b8Q Ne7 b7 Qh3 Kb1 Nc8 Qe2 Rg8 h8Q c2+ Kc1 Rg5 Nf6 Rh5 Qbc7 Bc3 b8N Ba1 Nc6 Nc5 d7 Bb2+ Kd2 c1B+ Kc2 Bd4 Kb1 Bc3 Qa2 Ba1 Be2 f1N Qf4 f2 Nf3 g1N Ng5 g2 Bf3 Ne3 Qe2 f1N Qg8 Qg3 Qdc7 Nd5 d8Q Bab2 Qce5 Nc7 Qc3 Ba1 Bd5 Nf3 Qd7 g1R Qg6 Nh4 Bg2 Nd3 Be7 Nc5 Qg7 Qh3 Be4 Bab2 Bh7 Rg3 Bg8 Re3 Qff2 Ng3 Qg6 Nge4 Qf4 Nb3 Qff2 Bg7 f8Q Nec5 Bef7 Ba3 Bd5 Bh8 Bd6 Na5 Qa1 Rc3 Qfe8 Rf3 Q8e5 Ncb7 Nf7 Be3 Qgg1 Rg3 Ng5 Bec1 Qef4 Re3 Bg2 Re8 Nb8+ Nc6 Be4 Bc5 Bf8 Qa3 Qc3 Be7 Bed5 Nc5 Bh1 Kb6 Bhd5 Nd4 Ba8 Ndb3 Nc6 Kb5 Nfh7 Bef6 Be7 Bfg7 Nf6 Bf8
B1q3b1/RnQRr1B1/1B4rb/QR1B2r1/1BK1bB1Q/6r1/2k2bNn/6q1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 Ke2 Kd7 Kd3 Kd6 h4 Kc5 g6 Kb4 b6 c5 g7 e5 h5 a5 b7 f3 h6 g3 h7 f2 d6 a4 d7 a3 f6 a2 f7 g2 Qe1 Kb3 Nh3 g1Q Nf4 Nc6 b8Q+ Bb7 Qc7 Nf6 g8B Ra6 Bg2 Qc8 d8Q Ng4 Qh4 Na5 Rh2 Bh6 f8B+ Re6 Bh1 Bc6 Ng2 Nb7 Bf7 Rg8 h8B Rg5 Bhg7 Bd5 Rh3 Reg6 Bg8 Ka4 b4 Kb3 b5 Nh2 b6 Bf7 Re3 f1B+ Re2 Be6 Bd6 Bd5 Ba3 Be6 Bb4 Kb2 Rd1 a1R Bf7 Bf5+ Kc4 Ra7 Bd5 Kc2 Ra1 e4 Bf4 e3 Ra3 Nd8 b7 Be4 b8R Nb7 Rd3 Ra3 Qa1 Ra7 Qaa5 Rg3 Re1 e2 Ra1 e1B Ra3 Bf2 Ra4 Nd8 Rb5 R6g5 Ba8 Nb7 Ra3 Be2 Ra1 Bg4 Rd7 Rg6 d4 Be6+ d5 Bg8 Rf7 R6g5 d6 Ra6 d7 Re6 d8B Re7 Rd1 Rg6 Rd7 R3g5 Rb6 Rg3 Rf6 R6g5 Rf5 Rg6 Kb5 c4 Rh5 c3 Kc4 Kb1 Rb5 c2 Qc5 R6g5 Bb6 Rg6 Qc7 c1R+ Bbc3+ Kc2 Bb4 Rb1 B4c5 R3g5 Rd6 Ra1 Qc6 Rc7 Bb4 Ra3 Rd8 Bf3 Ne3+ Kb1 Rd6 Nc5 Qd7 Bb7 Bc6 Kc1 Ng2+ Kc2 Qe7 Rag3 Bf3 Be4 Rd8 Bf5 Bfd5 Be4 Qd6 Rc6 Ra7 Nb7+ Qc5 Rce6 Rd7 Re8 Qc7 Re7
6Q1/B1k1KN1q/n1rn1R2/2N2Q1Q/r1r1qQr1/2Qb3q/4R1Nn/2r3RQ w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kb3 Kd7 Kb4 f1N Kc5 a5 h4 g5 e4 c6 b4 g3 d4 g2 e5 a4 e6+ Kc7 e7 f2 e8R g4 b6+ Kd7 h5 g3 d6 a3 b7 a2 h6 Ne3 h7 f1Q b5 Nf6 b6 Nc4 f5 Ra7 d5 Rf8 h8Q Nh7 f6 Qd3 f7 Ra4 Ne2 g1R Be3 g2 Nd2 Ng5 Nb3 Qc2 Qc3 Qe4 Rh6 Rb4 Nf4 Qe5 Rf6 Qde7 Qh5 Nf3 Bd4 Rg8 f8Q Nh2 Rb1 Rh1 Rg1 Qh7 Ree6 Qef5 Re2 a1R Qfh6 Kd8 d7 Qh3 Q6g5 Ra8 Qf5 Raa4 Bf2 Nd6 Be3 Ke7 d8N Rg4 Nf7 Be6 Bd4 Kd7 Bf2 Nc4 d6 Na6+ Kd4 c5+ Ke4 Ra1 b8Q Raa4 b7 Rb6 Qg8 Rc6 Ra1 g1Q b8Q Qgg3 Rg1 Qgh4 Be3 Qe1 Qbf8 Qeh4 Qfh6 Qe1 Qgg5 Kc8 d7+ Kc7 Qgh4 Nd6+ Ke5 c4 Ba7 Bd5 Ng2 Be4 Ke6 Bd3 Nc5 Qb1 Qhf4 Qb4 Ra1 Rc1 Ke7 Rc2 Rg1 Rc1 Qcd4 c3 Qde5 c2 Qc3 Rca1 Qhe1 c1R Qef1 Qb1 Qd1 Rc4 Qdf1 Rb6 Qd1 Raa4 d8Q+ Kc6 Qg8 Kc7 Qde1 Rc6 Qeg3 Nf3 Qh2 Qc2 Qh1 Nh2 Ree6 Qe2 Re3 Qef3 Re2 Qe4+
Qqb2Q2/4N1Kb/1n1R2Q1/2n5/bkBr2pq/1n1R3N/1N1r4/RN1N1nN1 w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 b3 f5 Ba3 h6 Bb2 f4 Bf6 f3 Bg5 Bd6 Kc1 Bf4 gxf4 hxg5 Kc2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 a5 e4 c6 d4+ Kb4 h4 a4 h5 a3 d6 c5 b6 g6 f5 g4 b7 a2 f6 g3 d5 g5 h6 g4 h7 c4 d7 g2 d6 c3 f7 c2 f8Q c1Q Qc2 Ne7 Kf6 Ka5 e5 Na6 b8N Rg8 h8Q Qe3 e6 Nc6+ e7 Rg7 b4+ Kb6 b5 Ka5 b6 Kb4 b7 Nc5 Rh6 Ra7 Bc4 f1B Qg6 Qe8 d8N f2 d7 Na5 Nf7 Qg3 d8R Qh4+ Ng5 Bd3 Nd7 f1B b8N Be4 Nb6 Rd7 Na4 Rd2 Rd7 Be2 Rd8 Bd1 Nac3 Ba4 Nd1 Qb5 e8N Rgd7 Qhg8 R7d4 Nd6 Bef5 Kg7 Bd3 Qgf6 Bh7 Qg6 Qb6 N5h3 Qc7+ Bf7 Nc4 Qh8 Nb6 Nc4 Qh2 Ncb2 Qd6 Bc4 Qf4 Ne2 g1N Qhg8 Nf3 Neg1 Nh2 Rd5 Re4 Rd3 Nf1 Qd5 Qfg3 Qa8 Rf4 Qge4 Qh2 Rhd6 Q2g3 Qg6 Rd4 Nd7 Qe5+ Nf6 Qe8 Ng8 Qed8 Na3 Qc7+ Ne7 Qb8 Rc1 a1N Rb1 Nab3 Ra1 Ne4 Nb1 Nec5
R2Q3r/2Q1NNkN/1qN5/2q1bQ1q/bRp1nnq1/8/1b1r1NN1/1R2B2K w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 Kf7 Kg2 a5 h4 e5 b4 c5 d4 g3 g6+ Kf6 h5 a4 b6 a3 g7 a2 h6 e4 d6 e3 d5 c4 b5 e2 b7 e1B h7 Ba5 b6 Nc6 b8N Be7 d7 Nh6 g8N+ Kf7 d6 Bg5 f6 Ra7 b7 Qb6 d8Q Nd4 d7 Ne6 Nc6 Bc3 b8R Be5 Qc2 Nf5 Qc7 Nd6 d8Q+ Bd7 Nf3 Ne4 Bd2 Ra8 Ne1 f3+ Kh3 g2 Nge7 g1Q Ng2 f2 Be1 f1Q Nd2 Qbc5 Rb4 Qff2 Rab1 a1Q Qd3 Ng3 Qf5 Ra2 Ne4 Bc1 Rh2 Qfb2 Nf2 Ne4 Rh1 Be8 Rh2 Kf8 f7 Kg7 f8N Qe2 Rh1 Qad4 Ra1 Rd2 Ra8 Qgf1 Rg1 Nf4+ Kh2 Qg4 Kh1 Qfe2 Rf1 Bb2 Rg1 Rg8 h8N Qb6 Rf1 Qdc5 Nf7 Rh8+ Nh7 Bd7 Na7 Ba4 Nac6 Rd7 Bd2 Rd3 Rb1 Qd1+ Be1 Rd2 Nb8 Qdf3 Nbc6 Qg5 Nd6 Qfg4 Nf7 Q5h5+
QbkNqnb1/1Rq5/2p2B2/2rQrRN1/r1N5/3R1R2/RRq5/r2n1Q1K w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 Kd7 Kg2 e5 d4 a5 h4 e4 b4 a4 g6 e3 h5 a3 f6 a2 f7 g3 g7 e2 h6 e1R d6 c6 d5 Re5 b6 Rg5 h7 Ba6 b5 Rg4 b7 Qh4 b6 Bd3 Qf1 Qe7 Bb2 Bc4 Na3 Ra4 Rh3 f3+ Kh1 f2 Bf6 Rg5 Nf3 Re5 Ng5 Nh6 g8Q Nf5 Rh5 Bb3 Nc4 Qe8 Rh3 Be7 f8R Ne3 Rh5 Kd8 d7 Nd1 Qe6 Rg8 h8R Rg7 R8h7 Rg6 Rhf7 Rh6 Rh2 Rh5 Rb1 a1Q Rb2 Qa3 Qf5 Qd6 Qe4 Qc7 Qed3 Na6 Qf3 Nc5 b8R+ Qc8 b7 Ne6 Q3g2 Kc7 Ra2 Bd6 d8N+ Qcd7 Rh3 Qde7 Rh7 Kd7 Rff7 Nf8 Qe4 Bc7 d6 Rc5 Qd5 g2+ Kh2 g1R Rhg7 Rg3 Kh1 Re3 Rh7 Re5 Rhg7 Rh4 Rh7 Rhe4 Rf3 Re1 Rh2 Nc3 Rf5 Ra1 Rh3 Nd1 Rhf3 Bb6 Rh7 Ba7 Rhh3 Qg7 Rd3 Qgf7 Rhf3 Qg6 Ra8 Qgf7 b8R Qfe7 Rb4 Bb8 Rb2 Kc8 Rb7 Qc7 Ra6 Rb4 Raa2 Ra4 Qg2 f1Q+ Qg1 Qe2 Qf1 Ba7 Qd4 Bb6 Ndf7 Qc2 Nd2 Ra3 Qe4 Be6 Qd5 Ba7 Nc4 Bb8 R7b4 Qb6 d7+ Kb7 R4b3 Ra4 d8Q Ba7 Qa8+ Kc7 Qg1 Bb8 Nd8 Bg8 Qf1 Kc8 Rb5 Qa5 Rb7 Qc7
1qb1B3/Bnn1RQ1Q/1nq2B2/3q2n1/k1p1Q1rb/4KN1Q/1Q1RQ1R1/7q w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Na3 a5 Nc2 h5 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Ne7 Ng4 hxg4 Ra3 Ng8 Ra4 Kf7 Ra1 Ke8 Kf2 Kd7 e4 c5 b4 g5 h4 a4 d4 a3 h5 a2 b6 Na6 e5 Ne7 f6 Nc7 b5 Ne8 h6 Bb7 e6+ Kd6 f7 Bc8 h7 Nf5 b7 Nc7 b8B Rg8 h8Q Be7 f8Q c4 b6 Qe8 b7 Qc6 Qh3 Rg7 Rb1 a1Q Bd3 Qa8 Ba7 Qb8 Rh2 Rg6 Qf7 g3+ Kf1 g4 Bb2 g2+ Kf2 Bd8 e7 Rg8 e8Q Bh4+ Qg3 Rg6 Qde2 Rg7 Q8e4 Rg8 Nh3 g1N Re1 Rg7 Ng5 Nh3+ Kf1 f2 Nf3 Ng5 Rg2 Rg6 Qh3 g3 Qh7 Rg7 Bb1 Kd7 d6 Qd5 Bd3 Kc6 d7 Kb5 d8Q Ka4 Qdg8 Nd6 Qf7 Qc6 d5 Rg8 Q2e3 Rg7 Ke2 f1N Qf2 Ne3 Bf6 Rg8 Kd2 Rg6 Qe2 Rg7 Nh2 f3 Bb1 f2 Nf3 f1Q Bd3 Qa8 b8Q Qh1 Qb2 Nb7 d6 Ned5 d7 Nb6 d8R Qb8 Ke3 Rg6 Bb1 Rg8 Rd2 Qd5 Rh2 g2 Bd3 g1Q+ Rf2 Qg3 Rg2 Qgd6 Bc2+ Ka5 Ba4 Rg6 Be8 Q6c6 Rc1 Ka4 Rcc2 Qa5 Rd7 Qad5 Re7 Nge6 Rd2 Rg4 Qc3 Ng5 Qa1+ Kb4 Qb2+ Ka4
Qb1Q2N1/3N1n1k/1qRrpr1b/b1R4K/1N1n1B2/1N2p3/4QN1q/r1R4N w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 a4 fxe4 axb5 h5 g4 Nc6 f4 Nb4 f5 Kf7 Bh3 Ke8 f6 Bf5 gxf5 Na6 Bg4 hxg4 Kf2 Nb8 Ke2 Rh3 Ke1 Rh8 Kf2 Kf7 Kg3 a5 h4 g5 d4 c5 b4 e6 b6 c4 b5 c3 h5 c2 d6 a4 d5 a3 d7 a2 b7 Ra7 h6 Be7 d6 Ra8 b6 Kf8 f7 Ra7 h7 Kg7 f8R Nh6 f6+ Kg6 f7 Na6 b8Q Rb7 Nh3 Qc8 d8N Rc7 d7 Rb7 Nf2 Bc5 Rh5 Kg7 Qa8 Bd6+ Bf4 c1B Nh1 Nc5 Nc6 Qc7 d8Q Nb3 Ne7 Nd4 Qe2 Qc5 Re8 Bb8 f8N Nf7 Nd2 Rd7 b7 Qb6 Nb3 Rd6 Nd7 Rf8 h8N Bd2 Nhg6 Ba5 Rc1 a1R Nge5 e3 Kh2 g3+ Kh3 g4+ Kh4 g2 Nd3 g1Q Rhc5 g3 Ndf2 g2 Ng8 Qh2+ Kg4 g1B Re7 Qg3+ Kh5 Bh2 Rc6 Kh7 R1c5 Bc7 b8N Qg1 Na6 Bb8 Nb4 Bg3 Be5 Bf4 Re8 Bh6 Bf4 Ng5 Rc1 Rf6 Re7+ Kh8 Rg7 Nf7 Rg5 Kh7 Rgc5 Qh2+
n2nqN2/bNN1pQ2/B2p4/n3b1K1/2rkr3/q3N1Q1/NR5b/1RQ2R1N w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Nh6 f6 Ng8 g3 Bb7 g4 Bc8 f4 h6 g5 Kf7 Be3 Ke6 f5+ Kd6 g6 Bb7 Bd2 Bd5 Bg5 Bf7 gxf7 hxg5 Ke2 Kd5 Kf3 a5 Kg4 a4 c4+ Ke5 b4 a3 h4 a2 b6 d3 b5 d2 c5 g6 b7 Rh7 h5 Bh6 f8Q Qa5 c6 Rf7 c7 Nc6 b8R Nb4 c8N Qa7 b6 Kd4 b7 Bg7 h6 Qa3 h7 Na6 h8N Nc7 Nh3 Ra4 Nb6 Rc4 Nc3 Na8 Rb1 a1N Nf2 Nb3 Qc1 Na5 Na2 d1Q+ Be2 Qc2 Rf1 Qca4 Nd5 d6 Nh1 Qe8 Ne3 Qd7 Qd8 Qe8 Rb2 Rf8 f7 Be5 f6 Nh6+ Kf3 Rg8 f8N Nf7 Kg4 Rg7 Qc8 Nd8 f7 Rh7 Qf5 Rh2 Qf3 Rh5 Qg3 Rh4+ Kf3 Re4 Rb1 Rc6 Ba6 Rc4 Rb2 Bf4 Kg4 Be5+ Kh3 g4+ Kh4 g5+ Kh5 Kd3 Kh6 Kd4 Ne6+ Kd3 Nc7 Kd4 f8Q Ndc6 Ng6 Nd8 Qh4 g3 Qf7 g2 Nf8 g1B Qg3 g4 Kg5 Nb6 Rc8 Na8 b8N Bf2 Nbd7 Bg1 Rcb8 Bh2 Qg2 g3 Nc5 Qb3 Qh3 g2 Qg3 g1B Rb1 Qa3 R8b2 Bf2 Nb7 Be1 Qff3 Bb4 Qff2 Bc5 Qf7 Ba7
1bb2N2/8/rq1bqBb1/bBkNn2p/p1N3N1/1K1R1N2/2rNQ1QB/7Q w - - 0 1 illegal: No possible last move
3bNQ1b/1nB1nK2/1NN1nQp1/pR1N4/1QbNpN2/3R2R1/2r4k/2qr4 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 g4 Bd7 f4 gxf4 g5 Be6 g6 Bc8 g7 Kd7 Be2 Ke8 Bh5+ Kd7 Bg6 hxg6 Ra4 Ke8 Ra6 Nf6 Ra1 Ng8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 a5 b4 c5 f6 c4 b6 f3 b5 e6 b7 c3 f7 f2 d6 f1N d7 c2 d5 Na6 b8R Nb4 d6 Ne3 b6 Qe7 d8N Qb7 d7 Ng2 Qe1+ Kg4 h4 Rh7 h5 Ra7 h6 Qa8 b7 Rh8 h7 Nh6 Kf6 e5 g8N e4 Nc3 Nf4 Nf3 Ne6 Nd5 Nc7 Rh3 Ne6 Bf4 c1B Ra3 Nd3 Bc7 Bd6 f8Q Ndc5 Rd3 Bb2+ Nd4 Nf5 Nc6 Be7+ Kf7 Bd8 Qb4 Ne7 Rhg3+ Kh4 Ngf6 Ra6 Ne5 Rd6 Nc4 Qa6 Ne8 Qc6 Ncb6 Bc3 Ra8 Rg8 b8N Ba6 Ra7 Nb7 Ra8 Qc5 Nbc6 Bc4 Rb8 Bb2 Rgf3 Kg4 h8Q Bc3 Qe5 Rh8 Qf6 Rh2 Ne2 Qe3 Nef4 Rc2 Nd4 Bb2 Ra3 Qd2 Rfd3 Qe3 Rab3 Kg3 Rbc3 Kh2 Rb3 Qc1 Rg3 Ng8 Rbd3 Be7 d8N Ba1 N8c6 Bd8 Nde2 Be5 Ned4 Ne7 Qf5 Bh8 Qf6 Rd7 Nc8 Nbc5 Rb5 Nb7 Ncb6 Qg1 Rd1 Bb3 Ne3 Ra2 Nde2 Bc4 Rd2 Rd3 Ned5 Qc1 Rd1 Rc2 Ned4 Rf3 Rd3 Rf1 Qb2 Re1 Qb4 Rd1
1N5K/bN4bb/1kbR4/1nbRB3/pr6/QqQR1p1r/1p3RN1/R2QR3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 b4 c4 Nc6 Bg2 Nd4 Bc6 Nb5 axb5 Ke7 Bd5 d6 c6 Ke8 Be6 d5 c5 Bd7 Bf5 Be6 Bd3 Bc8 Bc4 dxc4 Kf2 g5 Kf3 f5 e4 a5 d4 a4 h4 b3 b6 b2 d5 c3 h6 c2 c7 Kd7 h7 Ra6 h5 Nf6 d6 Kc6 h6 Nh5 e5 Ng3 d7 Ne2 e6 Rg8 h8Q Bg7 b7 Bf6 b8N+ Kb7 e7 Qf8 d8R Re6 e8R Re5 h7 Rd5 c6+ Ka7 Re3 Qd6 Rd3 Qc5 Nd2 Kb6 Nh3 Qb4 Ne4 Bd7 c8Q Bg7 c7 Rb5 Nd6 Qb3 Re1 Nc3 Nb7 Bc6+ R8d5 Rb4 Qf8 Nb5 Qe7 Rd8 c8R Rd6 Rf8 Rh6 Bd2 c1B Bc3 Be3 Be5 Bc5 Rf6 Rh4 Rd6 Rh5 Qc8 Rh4 h8R g4+ Ke2 g3 Rf8 g2 Kd2 f3 Nf4 g1B Ng2 f2 Ke2 f1B+ Kf3 f4 Rf7 Nd4+ Ke4 Nc2+ Kf5 Na3 Kg6 Nb5 Rf8 Rh5 Kf7 Be2 Kg8 Bf3 Qh3 Be4 Qe3 Rh4 Qd4 Rh3 Qc3 Bh6 Kh8 Bh7 Rfd8 f3 Rd2 Bgd4 Rf2 Bde3 Qf8 Kc7 Rd3 Ba7 R6d5+ Kb6 R8d6 Bd4 Qf4 Bc5 Qe3 Qc4 Qa3 Qb3 Qec1 Bf8 Qc3 Bg7+
2b1b3/2B1ppp1/kb3r1n/5Bq1/1Q3QnB/pNR1Q2Q/3Q1QNb/2K1N3 w - - 0 1 illegal: No proof kernel forced: wxDB
1B1R2n1/3b2pr/2k2b2/pR2pR1B/N1B3NK/R7/qqRN1R1b/1r2R2r w - - 0 1 illegal: No possible last move, all moves rejected
RNn1N2Q/Q2bk1K1/1rQN2q1/Bp6/B1Q3b1/1rNqN3/1q2Q2n/2r4b w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Nd7 a4 Rb8 h4 Nh6 Ra3 Ra8 Rf3 Rg8 Rf4 gxf4 g5 Rh8 g6 Nb8 Bd3 Ng8 Ba6 Bh6 Bf1 Bg5 hxg5 Qd6 Ba3 Qd7 Bc1 Qd8 Ke2 h5 Kd3 c5 Ke4 e5 d4 b3 d6 h4 d7+ Kf8 a5 c4 g7+ Kf7 d5 f3 d6 c3 a6 b2 a7 f2 Qe2 b6 Nh3 c2 Bd2 c1R Ba5 Rc7 Nc3 Na6 Nf4 h3 Ng2 h2 Ne3 Qf8 d8N+ Ke8 f7+ Kd7 g6 Rh3 f6 Nc5+ Kf5 e4 Nb7 Qe8 f8Q b1B f7 Nh6+ Kf6 Rb8 g8N Ng4+ Kg7 Na4 a8Q b5 Qa7 Ke6 d7 Nb6 d8Q Bd7 Qc5 Nc8 Nd6 Rb6 Qc6 Rg3 Bh3 f1Q Nf6 Bd3 Rg1 h1B Bg2 Qa1 Bf3 Qb2 Ra1 Nh2 Ra4 Bc2 Ra1 Bd1 f8N+ Ke5 Bg4 Qe6 Bf5 Qd5 Nfe8 Qd3 Qh4 Rf3 Qh8 Rh3 Qe1 Bg4 Qe2 Rg3 Be6 Rh3 Bb3 Rg3 Nf1 e3 Ba4 Rf3 Ne6 Rh3 Nc5 Rg3 Na6 Ke6 Nb8 Ke7 Qd1 e2 Ne3 e1Q Qe2 Qeb1 Qcf3 Rg1 Bb4 Rcc6 Qa8 Qdd2 Bd1 Qdc2 Kh6 Qb2c1 g7 Ke6 g8Q+ Ke7 Kg7 Q2d2 Na2 Rc3 Qfc6 Qbb2 Qgc4 Ra3+ Nc3 Qcb1 Bc2 Rc1 Qab7 Rb3 Ra8 Ra3 Ba4 Rb3 Qa7 Qe4 Ba5 Qdd3 Nc2 Qe6 Ne3 Qeg6#
B2b1rq1/B6B/R1Rb2Nk/2qRq3/p3RqR1/3nB3/KQ2n2B/Q3qb2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Na3 a5 Nc2 h5 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Ne7 Ng4 hxg4 Ra3 Ng8 Ra4 Kf7 Ra1 Ke8 e4 Kf7 d4 c5 Kd2 g5 Kc3 Kg7 Kb3 c4+ Ka2 f2 b4 g3 h4 g2 e5 c3 b6 g4 f6+ Kh6 b7 c2 b5 g3 b6 Kg6 e6 f3 h5+ Kh7 e7 Bg4 e8B Bd7 d6 Bh3 d5 Nh6 d7 Nf5 d6 Ne3 h6 Nc4 f7 Nc6 b8B Na3 b7 Ne7 Bd3+ Nf5 Ne2 g1Q Be3 c1Q Bba7 f1Q b8B g2 Nf4 f2 Ng6 Qb6 d8R Qe1 d7 f1Q Rc8 Qbc7 d8R Qff4 Bc6 Qc5 Ba8 Nd4 Rd5 Qce5 Rc6 Bd6 f8R Ne2 Re8 Rf8 Qc1 Nc4 Qb2 Qef6 Re4 Ne5 Bb1 Nd3 Rh2 Q6e5 Bc2 Bc8 Rh4 Ba6 Rg4 Bb5 Rc1 a4 Ra6 Qeg3 Bb1 Q1e1 Rc3 g1B Bc7 Kg8 h7+ Kg7 Rc2 Kh6 Bcb8 Qe7 h8Q+ Qh7 Qhe5 Qg8 Qa1 Bf2 Qeb2 Qh2 Bc7 Bh4 Rc3 Bd8 Bc2 Qd4 Rcc6 Qc5 Bcb8 B6e7 Be5 Bd6 Bb1 Qg5 Bg3 Qf4 Bc2 Qh5 Bh2 Qe5 Nh8 Nf2 Rd4 Ng1 Bh7 Bf1 Re4 Ne2 Ng6 Nd3
3Q1N1q/3B3K/q3N1B1/rb1p2Nn/1Nn1N1k1/3Q1R1p/2Bb4/rqqBB3 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 b6 exf5 Nf6 b5 Ng8 Ra3 Bh6 Rb3 Bg7 Rb4 axb4 a5 Bh6 axb6 Bf8 Ke2 Kf7 Kf3 d5 Kf4 h5 c4 b3 g4 h4 b7 d3 c5 d2 f6 Ke6 f7 h3 b6 b2 c6 Bh6 f8N+ Kd6 c7 e6 Nf3 Ra6 Be2 Ke7 Rf1 Bg7 g6 Kf6 g5+ Ke7 Nc3 b1Q Ne4 Bf6 g7 Bc3 g6 e5+ Kg5 Nh6 g8B Qd6 g7 Qd7 Kg6 Ng4 Ng5 Ra4 f4 Qd6+ Nfe6 Qc6 f5 Ra5 Bh7 Bd7 g8B Nf6 c8B Nh5 Rf3 Qb2 Qb3 d1Q Bd2 Qdb1 Be1 Bd2 Qd3 Qcb5 Bd1 Nc6 b8Q Qa6 b7 Q1c1 Nf2 e4 Bf7 e3 Nfe4 e2 Qa8 Qbb1 b8N Ne5+ Kh6 Bc6 Bd7 Nc4 Bfe8 Bb5 Bg6 Qb6 Na6 Re8 Nc3 Kf6 Nb4 Qa6 Ne4+ Ke5 f6 Rf8 Bf2 e1Q f7 Qg1 Be1 Qd4 Qd8 Re8 Qb6 Ra8 f8N Na3 Qf1 Qa7 Bge8 Ra4 Ng3 Nc4 Bhc2 Ra1 Ne4 Qb7 Bg6 R8a5 Kh7 Qa6 Qd3 Qc3 Qd8 Q3b2 Bf7 Qd4 Re3 Kf5 Rf3+ Kg4 Bg6 Qh8+
3Q4/2q2kpR/N2Q1rp1/1p1n1Nn1/3nb1R1/qN2KQr1/4nQ1Q/1N1BN3 w - - 0 1 legal: proof: g4 d5 e4 a5 c4 a4 cxd5 a3 e5 e6 d4 Bd6 exd6 Nc6 g5 Nb8 g6 hxg6 bxa3 Kf8 a4 f6 a5 Kf7 Bf4 Ke8 Be5 fxe5 Kd2 c5 f4 b5 a4 c4 h4 e4 a6 e5 f5 c3+ Ke3 c2 h5 c1N a5 Nd3 h6 Nb2 a7 Nd3 a6 Nf2 d7+ Kf7 d6 Rh7 f6 Nc6 d5 Nge7 Be2 Rb8 a8N Nh3 a7 Bb7 Nc7 Qc8 d8N+ Kg8 a8Q Nf2 f7+ Kf8 d7 Na5 d6 Nac6 Na6 Nh3 Ra4 Nf4 Nf3 Nd4 Nc6 Qc7 d8N Rh8 d7 Ned5+ Kd2 Rc8 h7 Rg8 h8Q e3+ Ke1 e4 Ne7 Bc6 Qh2 Rh8 Qd2 Rh3 Bd1 e2 Kf2 e1N Nf5 Rg3 Nb7 Nfe2 Na5 Re8 Qb7 Re6 Nb3 Rf6 d8Q+ Be8 Ne5 Nef3 Nd3 Ng5 Ne1 e3+ Kf1 Nb4 Qf3 Nd5 Qhf2 Qe7 Rh7 Qa3 Q8a5 Bc6 Rc4 Nc2 Rg4 Ncd4 Qb2 Nec3 Qh2 e2+ Kf2 Ba8 Ne3 Ke7 f8Q+ Ke6 Qd6+ Kf7 Qad8 Bc6 N1g2 Ba8 Nf5 Bc6 Kg1 e1Q+ Qf1 Qe7 Kf2 Nb4 Ne1 Be4 Qfe2 Qd7 Qf3 Qc7 Qbe2 Nbd5 Qf1 Ne7 Ke3 Nce2 Qff2 Nd5+
7k/1nNpNRNq/B5bK/1pqN1B2/N2BBn1b/4br2/1Q2Bpb1/Q7 w - - 0 1 legal: proof: c4 g5 d4 b5 a4 e5 dxe5 a6 h4 Ra7 hxg5 Rb7 b4 bxc4 f3 Nh6 b5 Ng8 Ra2 Rb6 Rb2 Rh6 b6 Rh4 Rb5 Re4 fxe4 axb5 Kf2 f5 Kg3 Kf7 Kh4 Kg7 Kh5 c5 g4 c3 a5 c2 b7 c4 g6 c3 a6 h6 g5 f4 e6 f3 e7 f2 e8B Be7 e5 Qa5 e4 Qb4 a7 Qa5 a8B Bb4 e6 Nc6 b8Q Ba3 e7 Nd8 e5 Bd6 e6 Qa7 Be4 Qa3 Be3 c1B Nh3 c2 Bd4+ Be5 Nc3 Qa8 Na4 Qa7 Be2 Qc5 Nf4 Be3 Nd5 Qc4 Qa1 Bf6 Qe5 c1Q Rh4 Qb3 Rf4 Bb7 Bf7 Rh7 e8N+ Kh8 e7 Qc5 Be6 Rf7 Nec7 Qa2 e8N Ne7 B6g4 Ba8 Bgf5 Nb7 Ng7 Rf8 Ndc3 Qg8 Qb2 Nd5 Rf3 Nb4 N3d5 Be7 Qf6 Nd3 Qa6 Bd6 Qa5 Bg3 Qe1 Bh4 Qea1 Qd6 Bg4 Qc6 Rf7 Qc5 Bgf5 Nf4+ Kg4 Rc8 Nh5+ Qg7 Ndb6 Rg8 Bd5 Nd6 Bfe6 Ng2 Bb7 Nf4 Ba6 Bg2 Bd5 Bf1 Be4 Nb7 Nbd5 Bg2 Nhf6 Bg3 Nfe8 h5+ Kf5 h4 Kg4 Nd3 Kh5 h3 Bf1 h2 Be2 Qf6 Kh6 Qe5 Rf3 Rf8 g7+ Kg8 Rf4 Bh4 Rf5 Qg3 Rf3 Rf5 Rf4 Kf7 g8N Kf8 Nge7 Rf7 Nf5 Kg8 g6 Rf8 g7 Rf6+ Kh5 Kh7 g8B+ Kh8 Bh7 Qg8 Neg7 Rf8 Nfe7 Rf7 Rg4 Rf3 Rg5 Nf4+ Kh6 Bh3 Nac3 Bf5 Na4 h1B Rg6 Bg2 Rf6 Bg4 Rf8 Bh5 Bhf5 Bg6 Rf7 Qh7#
2nnr2Q/RB3N1p/2Rb1RbQ/2N3Rp/3r1N2/r7/NK1kpp2/1rN4R w - - 0 1 legal: proof: e4 b5 h4 d5 exd5 c5 a4 g6 h5 gxh5 axb5 Bd7 Qg4 Be6 Qd1 Bc8 b4 e5 f4 e4 b6 Bf5 b5 Qc7 Ba3 Qe5 fxe5 Bc8 Bb4 cxb4 c4 Ke7 d4 a5 Kd2 f5 Kc1 f4 g4 f3 g5 f2 e6 Kd6 c5+ Ke7 b7 b3 g6 Kf6 g7 Kf5 c6 Kf4 e7 Ke3 e8Q a4 d6 a3 d5 a2 b6 Ra5 d7 Bd6 d8N Bc7 d6 Nh6 g8R Be6 d7 Ra8 Rg5 Ng4 Bg2 Be5 c7 Bd4 c8R Rg8 Nc3 Ne5 Rc6 Bh3 Ne6 Ng6 d8N Ra3 Nf7 Be5 Kb2 Bf5 Qd6 Ne7 Nf4 Nc8 Nge2 Bg6 Nc1 Rh8 Qdf8 Bd6 Qh6 Kd2 Qe5 Rg8 Qh8 e3 Bf3 e2 Bg2 Nd7 b8R Nc5 b7 Ne6 Ra8 Nd8 b8N Rf8 Ra7 Re8 Rb1 a1R Na6 Ra4 Nc5 R1a3 N3a2 Rd4 N1d3 Be7 Rf6 Bf8 Rbc1 Bd6 Kb1 b2 Bb7 Re6 Rc4 Re8 Rc3 Ke3 Kc2 b1R Rc4 Rc1+ Kb2 Ra1 Ndc1 Kd2 Rb4 Bb8 Rbb6 Bd6 Rc6 Rb1+
1K3N2/1Nr2bQ1/6n1/2Q5/k3bQ1b/1qR1Rn1q/2B2N1R/N1brQb1N w - - 0 1 legal: proof: b4 b5 e4 d5 c4 f5 exf5 h5 cxd5 a5 g4 a4 gxh5 a3 Bb2 axb2 a4 c5 axb5 cxb4 Ke2 Kd7 Kd3 g5 Ke4 e5 h4 g4 f4 g3 d4 g2 d6 b3 Kd5 e4 h6 e3 f6 e2 h7 e1B f7 Bg7 f8Q Ba6 h5 Nh6 f5 Ng8 f6 Qa5 f7 Qb4 b6 Qa4 b7 Bh4 h6 Be7 Qe1 Bh4 Nd2 b1B Bd3 b2 Ra3 Bgf6 Nh3 g1Q Rh2 Bfg5 Ne4 Bd8 Ng3 Qf1 Nf2 Bdg5 Ngh1 Bf4 Bc2 Bhg3 Rc3 Nc6 b8Q Bh4 Qb4 Bb5 Qc5 Ra5 Qg7 Bhg5 f8N+ Kc8 d7+ Kc7 d8N+ Ne7+ Ke6 Ra7 d5 Rg8 h8Q Bc1 h7 Ba2 Nb7 b1B Na5 Bh4 Nb3 Qh3+ Qg4 Qa3 Na1 Qb3 Qg7 Bf1 h8R Kb7 Kd7 Ka6+ Kd6 Ne5 Qf4 Rc7 Rh6 Rh8 Re6 Nf3 Re4 Ng6 Ree3 Rd7+ Kc6 Rh7 d6 Rd8 Qgd4 Rg7 d7 Rf7 Kc7 Rg7 Bd1 Be4 Bc2 Re7 Qg7 Rf7 Qc6+ Ka5 Qc5+ Ka4 Qg3 Ra8 Qf4 Ra6 Kc8 Rd6 Kc7 Rd1 Kc8 Qg2 d8N Qg3 Nb7 Qh3+ Kb8 Rc7 Bb1 Qb4 Bd3 Bf7 Bc2+ Qb3
Q2q4/bqbN2k1/2r5/KQ2Rp2/2Q1Nr2/5Nq1/2Rn1NQ1/3bNRBr w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 f4 exf4 c4 Nd7 cxd5 Ndf6 a6 Bh3 a5 Be6 a7 Nd7 a6 Nc5 Bh3 Nb7 axb7 Bc8 Bd7+ Ke7 Be8 Kxe8 b8N g5 d4 f5 Kd2 Kf7 Kc3 c5 e4 f3 h4 f2 h6 f1Q d6 g4 h7 g3 h5 c4 Kb4 g2 h6 c3 e5 c2 d5 Qg5 e6+ Kf6 e7 Bd7 e8R Qe1+ Nd2 Qeg3 Ra2 Qh3 Qg4 Kg6 Re5 Qd3 Nh3 g1R Qg2 Qc4+ Ka5 Kh5 Nf3 Qc6 Ne1 Kg6 Be3 Qc8 Rb2 Be8 d7 Rf1 d8N c1B d6 b4 d7 b3 Ndc6 Bd6 d8Q Nf6 Qd7 Ne4 Nd4 Qg3 Qc7 Kf6 Qc4 Bh5 Rc2 Rf4 Rf1 b2 Bg1 b1Q Nf2 Bd1 Ndf3 Qcg8 Rd5 Be3 Re5 Qb7 Qb5 Nd2 Nd7+ Kf7 Qc6 Re8 a8Q Re6 Qc4 Bec5 Qb5 Bd4 Qc4 Qe8 Qb5 Ba7 Qc4 Rf8 h8N+ Kg8 Nf7 Qec8 N7g5 Qd8+ Nb6 Re8 Nge4 Bc7 h7+ Kf7 h8Q Rg8 Qh6 Rh8 Qf8+ Kg6 Qfb4 Rh1 Qbb5 Kg7 Ka4 Rd6 Nd7 Rb6 Ka5 Rc6+
q2q1BQR/b1N1p2n/1B1r1n2/B2R3b/6B1/3pRR2/KQ2Q2r/5rBk w - - 0 1 legal: proof: b4 h5 c4 a5 bxa5 c5 g4 b5 gxh5 f5 e4 Ra6 exf5 Ra8 Nc3 b4 d4 cxd4 a3 dxc3 axb4 Rh7 b5 Rh8 h4 Kf7 f4 Kf6 c5 g5 b6 d5 b7 g4 c6 d4 a6 g3 h6 g2 a7 d3 c7 c2 Kd2 Nd7 Kc3 Nb8 Kb2 Qd4+ Ka2 Qe4 h5 Qe5 h7 Qe2 h6 Nd7 b8B Qe3 Nh3 g1Q Ng5 Bg7 Bh3 Qg4 Bd2 c1R Ne6 Qgg1 Qe2 Rc5 Re1 Rc6 Bg4 Qh2 Ba5 Ba6 c8Q Rc3 Qb7 Qd4 Qbb2 Rc5 Bbc7 Rf8 a8Q Rc6 Bcb6 Rd6 Nc7 Qg2 Rh5 Bb7 Qe8 Bf3 Qc8 Kf7 f6 Kg6 f7 Ndf6 Rd5 Qh1 f5+ Kg5 Qe8 Kh4 Qa8 Kg3 Qc8 Ne4 f6 Ng5 Qe8 Qg2 Qc8 Kh2 Qa8 Rb8 f8B Rb7 f7 Nf6 Qf2 Ra7 Re3 Kh1 Qfe2 Ra6 Bf5 Bh5 Bg4 Rc6 Qb8 Rc1 Qd8 Rf1 Qb8 Rg8 h8B Qge4 h7 Bh6 Rd7 Qa8 Rd5 Rg6 Bhg7 Ra7 h8R Ngh7 Qe8 Bf4 Bh6 Bg3 Bf4 Bf2 Bh2 Rh6 Bg1 Ra6 Ba7 Rd6 B7b6 Bg6 Qd8 Rh2 Qc8 Bh5 Qe6 Ne4 Qg6 Nef6 Qg8 Rd8 Bg7 Rd6 f8R Qe4 Rf7 Qd8 Bf8 Qf3 Rf5 Qfa8 Rd5 Ne8 Rff5 Nef6 Rff3 Ng5 Ree5 Bd4 Bc5 Ngh7 Ree3 Ra6 Ba3 Bb6 Bc5 Ba7 Bd4 Rc6 Bdb6 Rd6
QQ3bb1/1p2N3/QB1pk3/1q3R2/1RR1nB1K/4r1rr/R3R3/2Q1nBr1 w - - 0 1 legal: proof: e4 c5 f4 a5 b4 f5 bxa5 c4 exf5 c3 dxc3 Kf7 c4 Ke8 c5 Ra7 Na3 Ra6 Nb1 Ra8 g4 h5 g5 g6 Nd2 Qc7 Ne4 Qb6 Nf2 Qc7 fxg6 Qd8 Ng4 hxg4 f5 Rh6 Bg2 Rh5 Bf1 Rh8 Kf2 e5 Kg3 Ke7 h4 e4 a4 e3 c4 e2 f6+ Ke6 c6 e1R c7 d6 h5 Nd7 g7 Kf7 a6 Nb6 c5 Ke6 a7 Rb8 a8Q Rh6 g6 Kf5 f7 Be6 c8Q Qe8 c6 Nf6 g8R Ke5 g7 Nh7 c7 Rg6 a5 Ng5 a6 Bd7 h6 Ke6 a7 Kf5 h7 Qe4 h8B Nf3 Ra2 Qe5+ Bf4 Qe2 Qc1 Qd3 Ne2 Rf6 Rh4 Qc2 Nc3 Na4 Nd5 Qd3 Ne7+ Ke6 Rhh2 Re4 Rhe2 Ne1+ Kh4 g3 Qe8 g2 c8R g1R Rc4 Qc2 Qc8 Rfg6 Rb4 Qd1 Q8c3 Qd5 Qh3+ Qf5 Rc4 Rd8 Qb8 Bc6 a8Q Bd5 Qa6 Nc3 Qba8 Rh1 Rc6 Kf6 Nc8 Re3 Bh2 Be7 f8R+ Bf7 Bg1 Re6 Bb6 Re3 Rc5 Rg5 Rb5 Ke6 Rb4 Bg6 Rf7 Bh7 Rgf8 Rd7 g8Q Rgg1+ Bf6 Rd8 Bg5 Rd7 Rd8 Ne4 Qe8 Bg8 Rf6+ Kd5 Bf4 Bf8 Rf7 Qe5 Rf5 Rdg7 Ne7+ Ke6 Rc8 Qb5 Rcc4 R7g3 Qeb8 Rhxh3+
1b4n1/2B3k1/n4N2/B1r4r/QNB2B2/Qq2nR1b/1QqKQr2/N1b1B2n w - - 0 1 illegal: No possible last move
4q1N1/q3n1n1/2kNnn1R/6rN/1Q6/1QBB1b2/B1N1B3/qN1nKqbQ w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 b4 e5 c4 d5 cxd5 e4 h4 Bb7 f4 gxf4 g5 Ba6 h5 Bc8 Ra3 Ra6 Rf3 Rg6 hxg6 exf3 e4 Kd7 d4 h5 g7 c5 d6 f5 b6 h4 g6 c4 b7 c3 b5 h3 d5 c2 b6 f2+ Ke2 a4 e5 f3+ Kd2 f4 Bd3 f1N+ Ke1 a3 Bb2 c1N Bc3 a2 Ne2 a1Q Ng3 h2 Nh5 Ne7 g8N Nb3 g7 Ng3 Be2 Nd4 e6+ Ke8 Bd3 Nd7 b8Q Nf6 b7 Ngf5 Be2 Qb6 d7+ Kd8 Qb3 Qba7 Qa8 Kc7 d6+ Kc6 b8Q+ Bb7 Bd3 Rh6 Qb4 Rg6 d8N+ Kd5 d7 Rg5 Nf7 Kc6 Nd6 f2+ Kd1 f1N Ke1 f3 d8N+ Kd5 Nc6 N1e3 Be2 Nd1 Qb3+ Kc5 Nb4 Kb6 Nc2+ Kc6 Qd8 Q1a4 Qa5 Qb5 Qab4 f2+ Kd2 f1Q Bd3 Nc8 e7 Ne6 e8B+ Kc7 Q4a3 Nce7 Qab4 Bf3 Bg6 Qe8 Be2 Nfd4 Bgd3 Ndf5 Nh6 Kd7 g8B Nfg7 Qae4 Kc7 Qh7 Kc6 Bf7 Qfg1 Ng8 Qgd4 Ke1 Qa1 Rf1 h1Q Rg1 Qg2 Rh1 Qda7 Qhe4+ Rd5 Qh4 Rg5 Qh2 Qh3 Qg1 Qg2 Rh2 Qh3 Qh1 Qf1+ Kd2 Nef5 Nc4 Qed7 Nf4 Q1a2 Q3a3 Ned4 Rh6 Bc5 Nd6 Qe8 Nh5 Qa1 Ba2 Ne7 Qab2 Nde6 Q2b3 Qg2 Ke1 Bg1 Qb2 Qh3 Q2b3 Qf1+
rrBn1n1B/q1RR4/2q1B3/1N1bR2R/nkq1Q1Q1/3rQ3/3RKq2/B5n1 w - - 0 1 illegal: No possible last move
2N1QRQ1/1Rr1Q1r1/3B1q1b/k1BKR3/2B5/r2b1BB1/bp2n2n/R3qn2 w - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 Bd7 cxd5 Bc8 b4 axb4 g4 h5 g5 g6 Na3 Be6 Nc4 Bd7 Ne3 Be6 fxg6 Bf5 Ng4 Bc8 f5 hxg4 Ke2 Kd7 Kd3 e5 Kc4 c5 a4 Kc7 d4 Kb6 h4 g3 h5 e4 a5+ Ka6 g7 e3 d6 b5+ Kd5 e2 g6 e1Q f6 g2 h6 b3 d7 c4 h7 b4 f7 b2 Qe2 b1B Nh3 g1R Bf4 b3 Qe8 b2 Bg3 Qf2 Ng5 Qdf6 d8R Qe7 Rh5 Qh2 Rd7 Qh4 Ne4 Qh1 Re5 Nh6 g8Q Ba2 g7 Ng4 Rb7 Bf5 Bg2 Qeh4 Nd6 Qf6 Nc8 Bd3 Bf3 Nh2 Qe7 Nc6 Qe8 Bb4 f8B Nf1 Bd6 Bd2 Qe7 Bf4 Qge8 Bd2 g8B Bh6 Be6 Rg8 h8R Rg7 Rf8 c3+ Kc5 c2 d5 Nb8 Kd4 c1N Bc5 Bh7 d6 Bd3 d7 Ra7 d8B Nd7 Bb3 Ne2+ Kd5 Ra8 Bc7 Qhh4 Bh2 Qe1 B7d6 R1g4 Bg3 Rc4 Rc7 Kb5 a6 Ka5 a7 Rc2 Bc4 Rc1 Re6 Ne5 Rb7 Ng4 Re4 Ngh2 Re5 Rb8 Rc7 Rb7 a8Q+ Ra7 Rb7 Rc3 Q8f7 Ra3 Qg8 Qc1 Nb6 Qe1 Qae8 Qf5 Nc8 Qf6 Rb8 Rd7 Rb7 Rc7
N3nK2/1BQ3B1/4b2r/Rr4b1/rQRQB1kb/1q2pbBn/b7/2RR3R w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Ba6 Na3 Nc6 Nc2 Bb7 axb5 Nb8 b6 Ba6 b5 Bc8 Nb4 axb4 Ke2 Kd7 Ke3 c5 Kf4 h5 Ke5 e6 g4 h3 f4 b3 d4 b2 b7 b1R d6 c4 f6 c3 b6 h2 f5 h4 d5 h3 g5 c2 g6 Rb4 g7 Rb2 f7 Ra3 f6 Qe8 Nf3 Ra6 Ng5 Ra8 Bg2 Ra7 Ra5 Ra6 Be4 Rh4 Qd4 Rb3 Bf4 c1B Bg3 Be7 f8R Rg4 f7 Nh6 g8B Rb5 Bgh7 Bd2 Bf3 Rf4 Bhe4 Rg4 Rh8 Qg8 Rc1 h1B f8B h2 Bg7 Bg2 Qb4 h1B Rh7 Rh4 Rh8 Ra8 Qd4 Na6 b8Q Ra7 b7 Nc7 Rh7 Ne8 Rc4 Kd8 d7 Bf1 Rc1 Bc4 Qd6 Rh3 b8R Ba2 Q6b4 Bg2 Rb7 Be1 Rbc7 Nf7+ Kf4 e5+ Kf5 Rh6 R7c4 Bf6 Ke6 Bd2 Nh3 Bdg5 Nf4 Rg6 Rhh1 Rh6 Ne2 Bh4 Nc3 Ra8 Na4 Bfg5+ Bg6 e4 Nb6 Ra7 Na8 e3 Be4 Rh7 Bgf5 Bf3 Bh3 Rh8 Bg2 Rh6+ Kf5 Nfd6+ Ke5 Ke7 d8Q+ Kf7 Q8b6 Bf5 Q6c5 Kg6 Qc7 Bg4 Bgf3 Kh5 Bg2 Be6 Bgf3 Nb7 Bg2 Nc5 d6 Be2 d7 Kg4 d8R Bf3 Rd7 Bd5 Rd8 Ne6 Rd6 Nf4 Rd8 Nf6 Kd6 Nh3 Ke7 Qe6+ Kf8 Ne8 Qdc3 Qb6 Rd6 Be6 Rdd1 Qd4 Qcb2 Qd3 Qd4 Qa3 Bf4 Qb3 Bb7 Be2 Bge4 Bf3 Bg3 Rc5 Rb5 Ra4 Ra5 Rb5
2kqNn2/1pr2N2/2Qr1B2/7n/Q2b2b1/2r1B1Q1/R1B2rB1/KQNr1Qb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h5 g4 Nc6 g6 Nb8 g5 Ra5 Bg2 Ra7 Bf1 Ra8 a4 Qd7 Ra3 Qd6 Rg3 Qd8 Rg4 hxg4 h4 Kd7 d4 e5 Kd2 c5 Kc2 b3+ Kb2 g3 g7 e4 d6 e3 g6 c4 h5 e2 f6 e1R h6 c3+ Ka1 g2 f7 c2 d5 Re3 h7 Qe7 a5 Rf3 a6 Rd3 a7 Rf3 Nc3 Nc6 Nge2 g1R Bg2 Qd8 Be3 c1B Ne4 Qb6 Rh2 Nb8 Nf6+ Kd8 d7 Bd6 f8Q+ Kc7 d8N Bg4 Nf7 Bca3 Qb1 Bac5 Ne8+ Kc8 Nc1 Nf6 g8B Nh5 g7 Bf4 Qd6 Rd1 Qc6+ Bc7 d6 Nd7 Nd3 Nf8 Nc1 Rb8 a8Q Rf2 Qa3 Ra8 Qaa4 Ra6 d7+ Kb8 d8B b2+ Ka2 Bd4 Bf6 Rd3 Nd8 Bce5 Bb3 Rc3 Nf7 Qd8 g8Q Bc5 Qg7 Bed4 Bc2 Rg8 Qg5 Rg7 h8Q Ba7 Qhh6 Bab6 Qcb5 Kc8 Qf1 Bbc5 Qh4 Rd6 Qg3 Bb6 Qa1 b1R Qg6 Rb5 Qb1 Rbd5 Ka1 Ba7 Nh6 Rgc7 Nf7 Bdc5 Qge4 Rd1 Qec4 Bd4 Qcc6 Nf4 Rh5 Bab6 Rb5 Nh5 Rb2 Be5 Ra2 Bbd4 Qgf3 Bh2 Qg3 Bg1
Br1Q2Bn/4Q1bn/2N4q/B3qrRr/1Q1qQ1Np/1br3k1/N5NN/1K6 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Bh6 Ra2 Qd6 Rb2 Qd7 axb5 Bg7 b6 Qd8 b5 Bf8 Rb4 axb4 d4 Kd7 Kd2 Kd6 Kc2 h5 f4 c5 g4 e5 b7 c4 f6 c3 f7 e4 b6 h3 f5 e3 g5 e2 g6 e1R f6 h4 g7 h2 Qg4 Re7 Bg2 Ra7 Bd2 Bd7 Nf3 Qc7 Qe4 Ra3 Rg1 h1R Nh2 Na6 b8N Re5 b7 Rf5 Nc6 Bc8 b8N Rhh5 Nd7 Ne7 g8B Ng6 Nde5 Nb8 Neg4 Bg7 f8N Nh8 f7 Be6 Ng6 Nd7 Nf4 Nf6 f8Q+ Qe7 Kc1 c2 Nc3 b3 Na2 Nh7 Ba5 Bf7 Bf3 Be6 Ng2 b2+ Kd2 b1Q Qb8+ Kd7 d6 Bb3 d5 Qa1 Qbb4 Qd4+ Kc1 Qee5 Bb6 Kc8 d7+ Kb7 d8Q Ra8 d6 Rb8 Nf1 Rh3 Qe7+ Kc8 Ba5 Rg3 Qg5 Kd7 Nfh2 Rh3 Be2 Rd3 Bf3 Rc3 Kb2 Rf7 Ka1 Ke6 d7 c1Q+ Qb1 Qdf4 d8Q Qfd4 Be4 Qcd2 Qc2 Q2e3 Kb1 Q3f4 Bf3 Qff6 Qe2 Qh6 Qge7+ Kf5 Bd5 Rf6 Qe4+ Kg5 Na7 Rcc8 Ba8 Rc3 Qed5 Kf5 Nc6 Rf8 Qdc4 Ke4 Qce6 Rff5 Nf6+ Kd3 Nf4+ Ke3 Rg5 Kf2 Ng2 Qed5 Qe4 Q5e5 Nfg4+ Kg3
r1r1B3/4nbn1/pq1KQ3/qN3Rb1/1RNQ1N1Q/2Q1n1R1/1N3r2/2Nr1k2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 g4 h4 a6 d4+ Kb4 g7 c5 d6 e6 h5 f3 d7 g3 d5 c4 d6 c3 h6 g2 h7 c2 f6 c1N b6 f2 b7 Be7 f7 Qc7 f8R Qa5+ Bb5 f1Q d8Q Ne2 d7 Nc3 Ra3 Ne2 Rh4+ Nd4 Rf5 Bf6+ Kd6 e5 Nd2 Kc3 b4+ Nb3 Nc4 e4 Qd4+ Kc2 Nb2 e3 Ne2 g1R Nc1 Nc6 b8N Nce7 Nc6 e2 Na7 Na1 Rg3 Nh6 g8Q e1R Qe6 Rg8 h8Q Rd1 Qc7+ Qc4 d8N Rgf1 Be8 Rf2 b5 Bg5 b6 Qcc3 b7 Qb6+ Qc6 Rf8 b8N Rg8 Qee5 Be6 Nd7 Bf7 Qe6 Rf8 Ne5 Rg8 Nbc4 Qca5 Nb5 Rc8 Ned3 Rf8 Ne3+ Kd2 Nb2+ Ke1 Nec4+ Kf1 Rhf4 Nc2 Re4 Ng4 Qh4 Nf6 Ref4 Qa7 Qf3 Nh5 Qc3 Rh8 Nc6 Ra8 N6e5 Ng7 Ned3 Ne3 Re4 Qb7 Nf4 Qbb6+ Bc6 Rg2 Qdd2 Kg1 Nca3 Rae8 Rb4 Ra8 Nac4 Kf1 Qcd4 Rhc8 Q2c3 Qa7 Bd7 Rf2 Be8 Q7b6+
1B5r/QN6/pR2q1q1/2K2N1Q/N2q2BQ/3B1QQ1/n1b3qB/1nkq2bn w - - 0 1 illegal: No possible last move, all moves rejected
B2rQ3/1BB1QQ1Q/4b1bp/K1q2nrN/n1N1q1n1/6R1/1pk1B3/1q3NB1 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Nd7 a4 Rb8 h4 Nh6 Ra3 Ra8 Rf3 Rg8 Rf4 gxf4 g5 Rh8 g6 Nb8 Bd3 Ng8 Ba6 Bh6 Bf1 Bg5 hxg5 Qd6 Ba3 Qd7 Bc1 Qd8 d4 Kd7 Kd2 Kd6 g7 b5 g6 e5 f7 c5 f8Q+ Ne7 g8B f3 f6 h6 g7 e4 f7 f2 a5 b3 Kc3 c4 Kb4 b2 a6 e3 a7 e2 Nf3 e1N Na3 b1B Be3 c3 Nc4+ Kd7 d6 Ke6 d5+ Kf5 d7 Ke4 d6 c2 Qe8 c1Q f8Q Ng2 Be2 f1Q Bg1 Ne3 Qff7 Ng4 Rh3 Qg5 Rg3 Na6+ Kb3 b4 Ka4 b3 Nh2 Qe1 Nf1 Qb6 d8Q Be6 d7 Nf5 Qde7 Rd8 a8B+ Qb7 Qd2 b2 Ka5 Nc5 Bh7 Qc6 g8N Na4 Qdb4 Qe3 Nf6+ Kd4 Bb7 Rg8 Nh5 Qe4 Ba8 Qc1 Qb7 Kc3 Qa7 Rg5 Qb7 Rc8 d8B Kc2 Bc7 Rd8 Bg8 Ba2 Qa7 Qb1 Qh7 Bf7 Qb7 Bg6 Bd5 Qa3 Qe7f7 Bb3 Qb4 Ba2 Qbe7 Qae3 Bdb7 Qf2 Nb6 Be6 Nc4 Qc5+
2rR1qk1/1p3p2/5nbB/b6Q/1b1KNrB1/2BNBnr1/3NNq1N/Q5Q1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 f4 e5 fxe5 h4 Ra3 h3 b4 axb4 gxh3 bxa3 h4 Rh7 h5 Rh8 Kf2 c5 Ke3 g5 d4 c4 h4 a2 e6 a1R h6 g4 a5 g3 d6 c3 d7+ Ke7 d5 g2 h5 c2 d6+ Kf6 a6 Ra4 h7 Kg7 h6+ Kg6 a7 Rd4 e7 Qe8 d8B Bg7 d7 Rc4 Nd2 Nc6 Bb6 Rb8 a8Q Nd8 Qa1 Qf8 e8N Ra8 Nf6 Rb8 Nfe4 Ne6 d8N Rc7 Nc6 Ne7 Ne5+ Kf5 Nd3 Rg8 h8Q Kg6 h7 Bf6 Qg7+ Kf5 h8B Rc4 Qh6 Bd7 Qh5+ Ng5 Ba7 Bb2 Bc3 Ba3 Bad4 Ke6 Bg7 Rb4 Bh6 Rc8 Rh2 Bb5 Rh1 Bc4 Kd4 Nd5 e3 Ra4 Be2 Nf6 Bg4+ Ke7 Ne2 Bb4 Qg1 Be6 Rh3 Bf5 Rf3 Bh7 Rf5 Ke8 Rd5 Bg6 Rd8+ Ke7 Nf1 Rg7 Ned2 Rg8 e4 Nf3+ Ke3 Ba5 e5 Rf4 e6 Rg7 Nh2 Rg8 B1b2 c1B Bd4 Rg7 Bbc3 Ba3 Bb6 B3b4 Ba7 Qe8 Bb6 Kf8 e7+ Kg8 Bbd4 Qf8 e8N Bh7 Nd6 Rg5 N6e4 Bg6 Qf2 g1Q Ba7 Qe1 Qg1 Nh4 Kd4 Qf1 Bf5 Rg3 Bg4 Qe1 Ke5 Qf1 Be3 Qf2 Kd4 Nf3+
2R1Nnbk/R1R1RQN1/q1p2br1/NQ4B1/p1Q3q1/1n6/3b4/Qrb1K1R1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 Kf7 h4 Kg7 b4 e5 g6 a5 d6 g3 d7 g2 b6 f3 d5 e4 h5 c6 b5 e3 f6+ Kh6 d6 Qc7 d8R Qd7 b7 Be7 g7 Kh7 b6 e2 f7 Bg5 f8Q Qc7 h6 Be6 d7 Nf6 g8N Ne8 Qa4 Ba2 Qc4 Bf6 Nh3 g1B Na3 Qf4 Ng5+ Kg6 h7 Qf5 Rc8 Ng7 d8R Ne6 Rc7 Be3 Re8 Na6 b8R Nac5 b7 Qg4 Ree7 Nb3 Rbc8 Rb8 Rg1 Bf4 Nf7 B4g5 Ngh6 Rg8 h8Q Rg7 Qfg8 Nf8 Nd6 Be3 Ne8 a4 Rb1 Beg5 Nf5 Bf4 Qh1 Bh6 Qgd5 Kh7 Bg5 Kh8 Qf7 Rg6 Rb2 Nd4 Nfg7 Nb3 Bh4 Bc1 Bg5+ Qh5 Rd2 Qh3 Rdd7 Qh5 Kf2 e1B+ Kf1 Bed2 Kf2 Ra8 b8Q Ra6 Ra7 Rb6 Rdc7 Rb4 Kf1 f2 Qbb5 Qh4 Qd3 Qh5 Nc4 Qh4 Na5 Qh5 Kg2 f1Q+ Kg3 Qe2 Qdc4 Qg4+ Kf2 Qhh3 Qhd5 Qd3 Qc3 Qdc4 Qa1 Qd3 Qb6 Qa6 Qc4 Nd4 Qbb5 Rb1 Qc2 Be6 Qcc4 Nb3 Kf1 Be3 Ke1 Bd5 Qe6 Bf4 Qd7 Bg8 Qde6 Bfe3 Qf7 Bed2+
3R1nR1/Rb2p3/4pQ1q/2qB4/1r1BB1BK/3Q1Q1n/q1b1R1rk/q1R3N1 w - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 Bb7 cxd5 Nf6 f4 Ng8 e5 Bc8 e6 fxe6 g4 Bd7 h4 Na6 f5 Nh6 Nc3 Rb8 Nce2 Ra8 Nf4 gxf4 g5 Bc8 g6 Nb8 Rh3 Ng8 Rh2 Bh6 Rh1 Bg5 hxg5 Bb7 Qc2 Ba6 Qd1 Bc8 Kf2 Kd7 b4 Kd6 d4 h5 b6 c5 f6 a5 g7 a4 b7 f3 Kg3 f2 f7 a3 f8Q a2 b5 c4 b6 c3 g6 c2 Bg2 f1Q Qf6 Qb5 Bb2 c1Q Qdf3 Qe2 Kh4 Nh6 g8B Qed2 g7 Ng4 Bh7 Nf2 g8B Qdc7 Be4 Q7c5 Bgh7 Rg8 Bhf5 Ra4 Bg4 Nd7 b8R Nf8 b7 Nh3 Ra8 Q1c4 b8R Qh6 Re1 a1Q Ra7 Bb7 Re2 Qca2 Bc3 Kd7 d6 Rb4 d5 Rg5 Bd4 Rg8 Kg3 h4+ Kh2 Nf4 Rba8 h3 Kg3 h2 Re8 Nh3 Rea8 Nh7 Rc8 Rg6 Rh8 Nf8 Rg8 Kd8 d7 Kc7 Bc3 Kd6 Bd4 Rg7 d8Q+ Nd7 Qe8 Nf8 Qh5 Rg6 Qd3 Rg5 Kh4 Rg7 Nf3 Rg5 Rc1 h1B Ng1 Rg7 Bf1 Bf3 Bg2 Rg5 Rd2 Bd1 Re2 Bc2 Bh1 Kc7 d6+ Kd7 Bgf5 Rg3 Bg4 Rg2 Bef5 Kc6 d7 Kd6 Qg5 Rg3 Bd5 Rg2 d8R+ Nd7 Be3 Ke5 Qg6 Nf8 Bd4+ Kf4 Qf7 Qg7 Qhg6 Qe5 Qgf6 Qe3 Kh5 Kg3 Bfe4 Kh2 Kh4 Qd2 Qff3 Qf4 Qf6 Qh6+
RQ1q4/1n1N2qK/1B1NQ3/1p1Q1n1Q/3pQBbq/2B1N3/B3n2r/2bn2k1 w - - 0 1 legal: proof: e4 h5 g4 f5 exf5 b5 f4 c5 f6 Qa5 f7+ Kd8 a4 Kc7 b4 c4 f5 Kc6 g5 a6 Ra3 Qd8 Rg3 Ra7 Rg2 Rb7 Rg4 Rb6 d3 a5 dxc4 axb4 c5 hxg4 Ba3 Kc7 Bc1 Rf6 gxf6 Kc6 Kd2 Kd5 Kd3 g5 c4+ Ke5 h4 d5 c6 e6 a5 b3 c7 b2 c5 g3 h5 g2 h6 g4 c6 g3 a6 Qd7 h7 Be7 f8B Nh6 f7 Bh4 a7 Ng8 a8Q Na6 f6 Qe7 Na3 b1N Qh5+ Bg5 Nf3+ Kf5 Ne5 g1N Nc2 g2 Bf4 Nd2 Nd7 Qd8 Bc5 e5 f8Q Ne4 f7 Ne2 Bb6 g1Q Qe8 N4c3 f8Q+ Nf6 Qd6 Ng4 Qb8 Nh6 Bh3+ Qg4 Ra1 e4+ Ke3 Nc5 Ra8 Nb7 Bf1 Ng3 Bc4 Nd1+ Kd4 e3 Ba2 e2 Qee7 Re8 h8B e1Q Kd3 Qh1 Bc3 d4 Qe2 Qgh4 Qg2 Qe1 Qdd5+ Qe5 Qgf3 Ne2 Qh1 Na5 Qhg2 Rh8 Qh1 Ba6 c8N Nb7 c7 Rh7 Qg6+ Kg4 Qhe4 Kh3 Ne3 Qg7 Nd6 Rh8 c8Q Nf5 Qh5 Bh6 Qcc6 Rh7 Qee6 Bg5 Ke4 Rh8 Ng4 Kg2 Ne3+ Kg1 Qe7 Na5 Qee6 Bc8 Qcb7 Qgf8 Qbc6 Nb7 Ke5 Qh6 Qe4 Qg6 Qcd5 Qg7+ Nf6 Rg8 Qef7 Qh6 Ng2 Na5 Bg3 Bc1 Ne3 Ne7 Bf4 Nb7 Qe8 Bf5 Nd7 Rg2 Qef7 Bg4 Qfg6 Qh1 Kf6 Nf5+ Kf7 Qhh4 Qge6 Qhf8+ Kg6 Rh2 Kh7 Qg7#
1qK5/1p1Q1N1R/1N2nQ1Q/n2BRQRR/1k1q1R2/2n2b1q/3p3n/1rrN4 w - - 0 1 legal: proof: g4 c5 f4 f5 e4 a5 b4 axb4 g5 e6 exf5 h6 d4 Na6 dxc5 Be7 Bb2 Bf6 Bd4 Qe7 gxf6 Qd8 Bf2 Nb8 Bh4 Kf7 Bg5 hxg5 Qh5+ Kf8 Qd1 Ke8 Ke2 d5 Kf3 Kd7 Kg4 Kc6 a4 g6 h4 b3 c4 b2 f7 d4 f8R d3 f6 e5+ f5 e4 f7 e3 h5 e2 h6 e1Q a5 Qf6 a6 Qfc3 h7 Qe2+ Nf3 Qe7 a7 Qef6 Ne5+ Kc7 c6 Kb6 c5+ Kb5 c7 Qe7 c6 Nd7 f6 Qd6 Ra5+ Kb4 Rh5 Ne7 Bg2 d2 Re8 Rf8 Qf3 Nc5+ Qf5 Qa3 h8Q Ne6 Nc3 b1N Nd1 Nc3 Qh6 Bd7 c8N Qb8 c7 Nc6 Rd5 Na5 Nb6 Bc6 c8Q Rh8 f8R Rh7 Red8 Rc7 Nf7 Qb3 Re5 Bf3+ Kg3 g4 Rdd5 g5 Qd7 Rc6 Rh8 Rc4 Rh7 Rc5 Rd4+ Rc4 Rf4 Qa3 Kh2 g3+ Kh3 g4+ Kh4 Qb3 Rg5 Qa3 Kh5 Qb3 Kg6 Qa3 Bh1 g2 Rh5 g1N Bg2 Bc6 Bd5 g3 Rg5 g2 Rh5 Qf8 Rg5 Rc8 a8R Nf3 Ra7 g1Q Ra8 Nb3 Ra5 Nh2 Rc5 Qd6 Ra5 Qb8 Rc5 Nd8 Kg7 Qg4 Kf8 Ne6+ Ke7 Na5 Bg2 Qb2 Rh5 Qc2 Qfd3 Qb2 Red5 Na2 Ng5 Qc1 f7 Rc7 f8Q Qa1 Qff6 Rc8 Nf7 Qh3 Rdg5 Qd4 Qdf5 Rc2 Re5 Rb2 Bf3 Rb1 Be4 Bd5 Bf3 Rcc1 Bg2 Bc4 Bh1 Nc3 Bd5 Qa7 Kd6 Be2 Ke7 Bf3 Ke8 Nf8 Kd8 Ne6+ Kc8 Qb8+
NN4N1/1rB4Q/5n1q/Q1B1BQp1/Bp1qRQ2/p3Q3/rbbK2kb/n7 w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 g4 f5 gxh5 Be6 exf5 Bc8 b4 axb4 a4 Rh7 Ra2 Rh8 Ra3 bxa3 f4 Kf7 d4 Kf6 h4 b5 a5 g5 h6 e5 a6 c5 h5 b4 d6 c4 h7 e4 h6 e3 d7 c3 d5 c2 d6 e2 a7 Bg7 Be3 c1Q Nf3 Qa5 d8B+ Ne7 d7 Qc6 Qd3 Qb7 Nbd2 Qad5 Ne5 Qc5 Nc6 Qe5 Ne4+ Kf7 f6 Ke6 f5+ Kf7 Rh4 Re8 h8B Qh2 h7 Na6 Nb8 Nd5 Bdb6 Qd6 d8Q Nc5 Rg4 Nb3 Bec5 Rf8 Qe3 Na1 Bg2 Qbd7 Qc7 Ke8 f7+ Ke7 f6+ Ke6 Bh3 Rd8 f8Q Kf5 f7 Qh6 Nf6 Ba6 Ng8 Bd3 Bg2 Be5 Bf1 Bh2 Be5 Bb1 h8Q Be4 Nc6 Rab8 a8N Rb7 Nb8 Bb1 Re4 Qdd6 Bf4 Kg4 Qh7 Qdf6 Qfd6 Rf8 Qcd8 Qd4 Bh3+ Kh4 Bd7 Bd3 Bb5 Kg4 Bg3+ Kh3 Ba4 Kg2 Qdg6 Bb1 Be5 Bd3 Bcd6 Bb1 Bbc5 Bd3 Qa5 Rc8 Ba7 Rc2 f8Q Ra2 Bac5 Bc2 Qff4 Nf6 Qgf5 Qc4 Kd2 e1B+ Kc1 Bc3 Bc7 Bb2+ Kd2 Qd4+
QR3Rr1/2K1bR2/B3n2N/k2q1pr1/4N1rQ/2R5/b1npqNp1/2NR1Q2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 f4 b5 d4 cxd4 a4 e5 fxe5 Ba6 Bd2 Qf6 axb5 Bb7 b6 Qd8 b5 Bc8 Bb4 axb4 Kf2 f5 Kg3 d5 Kf4 Kd7 e4 b3 h4 b2 c4 d3 c5 d4 c6+ Ke8 h6 d2 h7 d3 b7 g6 b6 Qd4 e6 Kd8 h5 Nf6 e7+ Ke8 c7 Kd7 e8N Kc6 h6 Kb5 Nd6+ Kb4 Ra7 Qf2+ Ke5 g5 Ne2 g4 Nbc3 b1R Nc1 Na6 b8R g3 b7 Rg8 h8N g2 h7 Nc5 Nhf7 Rg6 h8Q Nh5 Nh6 Bd7 c8R Rg8 Kd5 Ng7 e5 Qf3+ Nde4 Rb3 e6 Qe2 e7 Nce6 Kd6 Nd4 Nf2 Be6 Nce4 Nc2 Rc3 Bc4 Kd7 Ne6 e8R Be7 Rf8 Rg5 Qf6 Rg4 Qh4 Bd5 Qe1 d1Q Kc8 d2 Kd7 Qf3 Ba6 Qde2 Qf1 Ka5 Rg1 Ra3 Kc8 Ba2 Rh1 Ned4 Kc7 Ne6+ Kc6 Qfd3 Rbd8 Bf6 b8Q Rg7 Rc4 Rc3 Rh8 Bb3 Qg1 Nc5 Rf7 Qd5+ Kc7 Rcg3 Rc3 Ba2 Qb7 Rb8 Qa8 R3g4 Qd1 Be7 Re1 Rb6 Rb8 Rbg6 Rhf8 Rg8 Rh1 R6g5 Rf1 Qe3 Qe2 Qed3 Rd1 Qf3 Qe1 Qe2 Qf1 Ne6+
5q2/1Q2RQ1b/4Rr2/Qp3NRr/Rp1p2q1/R2q1N1k/n2N4/1BQnn2K w - - 0 1 legal: proof: g4 c5 f4 f5 e4 a5 b4 axb4 g5 e6 exf5 h6 d4 Na6 dxc5 Be7 Bb2 Bf6 Bd4 Qe7 gxf6 Qd8 Bf2 Nb8 Bh4 Kf7 Bg5 hxg5 Qh5+ Kf8 Qd1 Ke8 Kf2 Kf7 Kg2 b5 a4 d5 c4 g6 h4 e5 c6 d4 h5 g4 h6 g3 a5 e4 a6 e3 a7 e2 h7 e1Q c5 g5 c7 g4 c6 Bd7 c8Q Qc3 c7 Qa3 Rh6 Bc6+ Nf3 Qa2+ Kh1 Qa3 Nd2 Bd7 Qb7 Na6 c8N Nc7 Ne7 Qd3 Ra4 Qf8 Qc1 Nd5 Bg2 Re8 a8Q Ne3 Qa5 Nd1 Rg6 Bc6 Rg5 Be4 Bh3 Ra8 Bg2 Ra6 Bf1 Qc4 Bd3 Qc3 Bb1 g2+ Kh2 g1N Kh1 g3 Ra3 Rb6 Ra4 Ke8 f7+ Kd8 f6 Qd3 Nf5 Ne7 Ra3 Nd5 Ra4 N5c3 Ra3 Rg8 h8R Na2 Rh6 Rh8 Ra4 Qe7 Rh3 Rh5 f8Q+ Qe8 Qfg7 Qf8 f7 g2+ Kh2 Qe7 f8R+ Qe8 Rf6 Qf8 Rf7 Ke8 Rc7 Rf6 Qf7+ Kd8 Ng3 Bh7 f5 Rg6 f6 Rgh6 Ne5 Rg6 Nf5 Nf3+ Kg3 Ne1+ Kh2 Rgh6 Nef3 Rg6 Qe6 Rgh6 f7 Rf6 Qec4 Qe7 f8R+ Qe8 Rfg8 Qf8 R8g6 Ke8 Qf7+ Kd8 Rh4 g1Q+ Kh3 Qg4+ Kh2 Qe2+ Kh1 Qd3 Qfc4 Rf7 Re6 Rf6 Ne7 Ke8 Rh3 Kf7 Rd7 Rg6 Qcc7 Kg7 Qf4 Kh6 Qf7 Rf6 Nd5 Qb8 Rde7 Qf8 Ne3 Qc2 Rc7 Rh4 Rce7 Qb3 Nh2 Qa3 Rg6+ Kh5 Nf5 Qc3 Rf3 Qc2 Rfa3 Qd3 Rh6+ Kg5 Rg6+ Kf4 Rg5 Rh5 Nd6 Kg3 Nf5+ Kh3 Nhf3 Qg8 Qcc7 Qg7 Qc1 Qf8
1b1R4/B2K1B2/1r1B1qR1/kpQ1r2B/p1q5/Q1r1Q3/R1b1p3/RbRNn3 w - - 0 1 legal: proof: e4 b5 b4 h5 a4 bxa4 g4 f5 exf5 c6 gxh5 Bb7 Ba3 Ba6 Bc1 Bc8 c4 Bb7 d4 Qc8 b5 Ba6 c5 Nh6 d5 Qd8 b6 Bc8 Na3 Ng8 Nb5 cxb5 Nf3 Nh6 Ng1 Nc6 dxc6 Ng8 Ke2 d5 Kf3 g5 Kg4 a5 f4 e5 h4 e4 c7 Kd7 b7 Kc6 b8B e3 h6 a3 h5 a2 h7 a4 h6 d4 Be2 d3 Ba3 d2 Rh2 Bg7 Nh3 Ba6 c8R+ Kb7 f6 Ra7 Kf5 g4 Ke6 g3 f5 g2 f7 g1Q f8Q Qf1 c6+ Kb6 f6 Bb7 c7 Ra6 f7 Ra7 Bd6 Ra6 Bh5 Ka5 Qe1 Be4 Ba7 Ne7 Nf2 Ng6 Nd1 Qdf6+ Kd7 Nf4 Qe2 Rg8 h8R Bb1 h7 Rb6 Rg2 Nd3 Rg6 Q1f4 Rd8 Qf1 c8B Ne1 Qe7 Q1f4 f8Q Qc4 Bb7 Bh6 Bd5 Bf4 Bf7 Bg3 Qd3 e2 Qee3 Bh2 Qa3 Bf4 Qfe7 Re8 Rhg8 Bg3 h8R Bh2 Qf8 Re5 Rg1 Bg3 Rg6 Bf4 Qe7 Bg3 Rc8 Bf4 Rhd8 Bg3 Nb2 d1B Rf1 Bdc2 Nd1 Bd3 Qac5 Bbc2 Rc1 a1R Qa3 Ra2 Ra1 Rb2 Ra2 Rb3 Qec5 Rc3 Qe8 Rg5 Qee3 Re5 Be6 Bb3 Bf7 Qg4+ Kc7 Re6 Qc6 Rc2 Be5 Ng2 Nf2 Bf5 Rb1 Ne1 Rba1 Rc1 Kd7 Bb1 Qd5 Rc2 Rc3 Qc4 Qdc5 Bh2 Beb8 Bd6 Nd1 Re5 Rd3 Rc1 Rdd2 Rc3 Rdc2 Bc7 Rc1 B3c2 Rh8 Bd8 Bd6 Bc7 Rd8 Bb8
b2q2Q1/Q1RNN3/n1qQpR1q/pn1N2R1/N7/3nR1r1/KR2p1Bb/3k4 w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 f4 fxe4 g4 b4 f5 a6 f6 b3 axb3 Nc6 b4 Nb8 b5 Bd7 Be2 Bf5 Bf1 Bc8 b3 h6 Bb2 a5 Ba3 Ra6 Bc5 Re6 Be3 Re5 Bg5 Rf5 gxf5 hxg5 d4 Kf7 Kd2 c5 Kc3 e3 Kb2 e6 h4 e2 b4 c4 d6 g6 d5 c3+ Ka2 c2 h5 c1Q b6 g4 h6 g5 b5 g3 d7 g2 d6 g4 b7 g3 h7 Qe3 b6 Qg5 Nc3 Qh6 Na4 Qc7 d8Q Be7 d7 Qe3 Rc1 Bb4 Qd6 Na6 b8R Nh6 b7 Qc6 Rh5 Ng4 Nh3 g1Q Nf4 g2 Rg5 Rg8 h8R Ne5 Nd5 Nd3 Rh3 Bc3 Qb6 Be5 d8Q Bh2 Qa7 Qd4 Rhg3 Qh1 Re3 g1N Bg2 Nf3 Rc2 Rg6 Rb2 Bd7 Rc8 Qdb6 b8N Nd4 Qh8 Qd8 Rc7 Nb5 Qh7+ Rg7 Qh8 Bf4 Qh7 Qh6 Qh8 Bh2 Qh7 Qc5 Nc6 Qc1 Nce7 Bc6 Qh8 Ba8 Qh7 Qc6 Qh8 Qdd7 Qhb8 Qd8 Qc8 Kf8 f7 Rg6 Qcb8 Kg7 f8R Kh7 f6 Rg8 Rf5 Rg3 f7 Kg7 Re8 Kh7 f8N+ Kg7 Nd7 Kh7 Ng8 Kg6 Rf6+ Kg5 Nge7 Kg4 Bf3+ Kh3 Rg8 Kh4 Rg5 Kh3 Bh5 Kg2 Bf3+ Kf1 Bg2+ Ke1 Qc8 Kd1 Qcb8 Qdh8 Qe8 Q8f8 Qf7 Qb8 Qg8 Qd8
3N4/KN1Qprbr/RN1Bb2B/1BB4b/nQ5r/Nq6/kb3p1p/1N1Q4 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 f5 Qb6 Qe2 Qc7 Qd1 Qd8 h4 Nh6 g4 Kf7 b4 Ng8 h5 Ke8 Ra3 Nc6 Rf3 Ne5 Rf4 gxf4 g5 Ng6 hxg6 Qc7 Rh2 Qb6 Rh1 Qd8 Kf2 d5 c4 Kd7 c5 h5 c6+ Kd6 f7 a5 f6 h4 b6 f3 b5 Kc5 b7 Kb4 b8Q d3 Ke3 h3 Kd4 d2 c7 f2 g7 h2 g6 a4 b6 a3 b7 a2 Bb5 Ra5 Na3 Rh5 Ne2 a1B+ Nc3 Bd7 c8N Bg4 Nd6 Nh6 g8Q Re5 g7 Qc7 Qa7 Bh3 b8B Ng4 Nb7 Rh5 Bb2 Ne3 Ncb1 Qc2 Bd6+ Kb3 Re1 Ng2 Re6 Rh7 Qc5 Bg4 Qb4+ Ka2 Qh8 Qb3 Kc5 d4 Kb6 d3 g8N Ra4 Nh6 Nf4 Bd4 Bg7 f8N Bb2 f7 Ne2 B4c5 Nc3 Nd7 Ra5 Rg6 Be6 f8B Ra8 Nf7 Na4+ Kc7 Ra6 Kb8 Rc6 Nfd8 Ra6 Qdg4 d1R Nb6 d2 Qh5 Rc1 Qd1 Rc4 Rf6 Rch4 Rg6 Bge5 Bh6 Bg7 Qe8 Ra5 Qd7 Ra6 Qe2 d1B Qed2 Bh5 Qd1 Qd3 Na8 Rc6 Nb6 Qb3 Ka7 Rc8 Bce3 Rcc4 Bec5 Rcf4 Na8 Qg3 Bb8 Beg4 Ra6 Qb3 Nb6 Be6 Bbd6 Rf7
3bn1QB/1QR2N2/4B1R1/r1p1K1R1/np2p1q1/2QR4/1Q1rp1k1/1nrQB3 w - - 0 1 legal: proof: e4 d5 g4 a5 b4 axb4 c4 h5 gxh5 Ra6 cxd5 Ra7 d6 Ra8 d4 f5 d7+ Kf7 d5 b6 d6 Bb7 Nc3 Bd5 exd5 Ra4 Ne4 fxe4 Bc4 Ra3 Bf1 Ra8 Qd4 c5 Kd2 g5 Ke3 e5 f4 Kf6 h4 Kf5 a4 Kg4 h6 Kg3 a5 b3 h5 g4 a6 b2 f5 b1N a7 b5 f6 b4 h7 Nh6 f7 Qb6 d8R Qb5 d7 Nc6 d6 Be7 f8R Na5 Nh3 Rg8 h8Q Qb6 Qb2 Rg6 Bc4 Rb8 a8Q Nc3 Rg8 Nf7 h6 Na4 h7 Nb3 Ng5 Nd2 Qb7 Ra8 Rc8 Qb5 d8Q Ra5 d7 Rd6 Ra3 Nb1 Bd2 Rd4 Rc1 Nd6 Nf7 Bh4 Bd5 Ne8 Rc7 Kh2 Qdf6 g3 d8Q g2 Rg6 g1R Qg8 Qd7 h8B Kh1 Rc2 Rc1 Be1 Qc8 Rcg2 Bg5+ Kf2 e3+ Kf3 Rd3 Ke4 Qh3 Be6 e2 Qf3 Bf6 R2g5+ Kh2 Qdd5 Bd8 Qdb3 Qg2 Qd1 Rd2 Kf5 e4 Ke5 Qh3 Qd3 Qf3 Qdd4 Qg4 Rd3 Kh1 Qdc3 Kg2
5R2/2qR4/n2r4/k2b1Np1/N1r1b3/R2RrBNb/5nRQ/RNr1NK1n w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 b3 f5 Ba3 h6 Bb2 f4 Bf6 f3 Bg5 Bd6 Kc1 Bf4 gxf4 hxg5 d4 Kd7 Kd2 c5 h4 Kc7 e4 Kb6 b4 a5 d6 a4 d7 c4 h5 g6 h6 a3 e5 g4 e6 g5 d5 a2 h7 g3 e7 g2 e8N Ra3 f5 Nf6 d6 Qe7 d8R Ra7 d7 Ra4 Be2 f1B Ke1 c3 Qd2 c2 Rh3 c1N Nd6 Ra8 Ne4 Qf7 Ng3 Rf8 h8R Ne4 f6 Qe7 f7 Re8 f8R Kb7 b6 Qc5 b5 Na6 R8h4 Qe7 Rg4 Nf2 Qb2 Nh1 Qd2 Kb8 b7 Ka7 b8N Kb6 Nc6 Bb7 Nd4 Be4 Ndf5 Rc8 Qc2 Ka5 b6 Qh7 b7 Rc4 b8N Re6 Bd1 Rd6 Qe2 Bd5 Qb2 Bd3 Be2 Nc5 Na6 B3e4 Ra8 Qe7 d8R Qc7 Rd7 f2+ Kd1 f1B Ke1 Qb8 Nf3 g1R Bd1 Qc7 Qh2 Rg2 Rad8 Rb2 Be2 Rb3 Bd1 Nb7 Nc5 Re3+ Be2 Bg2 Na4 Nc5 Ra8+ Na6 Rad8 Rec3 Bd1 Nd3+ Ke2 Rb4 Ne1 Rbc4 Ra8 Ndf2 Rad8 Bgf3+ Kf1 Be6 Be2 B4d5 Bd1 Bfe4 Bf3 Ra3 Ne2 Re3 Rg2 Bf7 Neg3 Bh5 Rh4 Bg4 Ra8 Bh3 Ra7 Bc2 Rd4 Bce4 Rd3 Kb5 Nb6 Nb8 Raa3 Na6 Na4 Kb4 Nd2 Ka5 Rc1 a1R Rd1 Ra2 Ra1 Rac2 Nb1 Rc1
7r/k1BB2RR/N2pn1rq/2n5/3BN2R/nRn3BR/1nN2r2/Brb4K w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 exf5 b5 axb5 Nh6 g4 Nc6 g5 Nb8 f6 Ng8 Qg4 hxg4 f5 Qc7 Na3 Kd8 Nb1 Bb7 Kd1 Bd5 Ke1 Bf7 g6 Kc8 gxf7 Qd8 Nc3 Kc7 Nb1 Kd6 Kf2 Kc7 Kg2 Kb6 b4 e5 h4 a5 c4 g5 c5+ Ka7 c6 d3 b6+ Ka6 b7 g3 b5+ Ka7 h5 d6 c7 a4 c8R e4 b6+ Ka6 h6 g4 h7 e3 Rh4 a3 Rc7 a2 Nc3 e2 Ne4 e1R Kh1 Bh6 f8R Nd7 b8B Qe8 b7 Re2 f7 d2 f6 d1N Bh3 Qe6 Nf3 Rf2 Rb1 a1N Ne1 Nb2 Bf4 Ne7 Nc2 Nd5 Rg8 Nc3 f8R Nc5 f7 Kb6 Be5 Bc1 Rg7 Qh6 Bf4 Rg8 h8B Ka6 Rh7 Rg6 Bd4 Kb6 Rfh8 g2+ Kg1 Ka6 f8B Kb6 Kh2 g1N+ Kh1 g3 Bd7 Nh3 Bfg7 Ng5 Bgf6 Ka6 Rg7 Nge6 Rhh7 Nc4 Rb3 Nb2 Rh3 Qg5 Rc8 Qh6 Bc7 Ka7 Rch8 Rf8 b8N g2+ Kg1 Re8 Na6 Rb8 Bg3 Rf8 Ne1 Nc2 Kh2 Na3 Nc2 Qg5 R7h4 Qh6 Rhh7 Rh8 Bfe5 Rff8 Bf6 g1R Bfe5 Be3 Bf6 Rb1 Kg2 Bc1 Kh1 Nd5 Bfe5 Rf2 Bf6 Nd1 Ba1 Nb2 Bd4 Nc3
2bB2n1/4n2k/3pNr2/3RB1b1/3NN1rq/p1B3B1/1RKr1rR1/B1R1r1R1 w - - 0 1 illegal: No possible last move, all moves rejected
1B3N2/2Q1Brr1/3b1B2/p1K2p1n/5B1q/1NN1p1np/1Rr2kB1/NN2Nq2 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 g6 cxd5 Nh6 f5 Ng8 g4 Nh6 b4 Nc6 f6 Qd7 g5 Ng8 h3 Qd8 Ra3 Bg4 hxg4 Nb8 Rf3 Bg7 Rf2 Bf8 Rf5 gxf5 Kf2 Kf7 Ke3 Kg6 Kd4 h5 d6 a5 b6 e5+ Kc5 c6 d4 e3 b7 e2 f7 e1Q d5 h4 b5 e4 b6 h3 Nf3 Nh6 Qc2 Qg3 Bf4 e3 Ne1 Ra6 Bg2 Qf2 Rh2 Bg7 f8N+ Kf7 g6+ Kf6 d7 Qg1 d6 Qe7 d8B Rg8 Qc1 Bh8 g7 Ra7 g5+ Kf7 Qc2 Qf6 d7 Qf1 Be7 Ng4 d8B Nf2 Qc3 Nh1 g6+ Ke8 Qe5 Ng3 Qc7 Qg5 Bf6 Qh4 Bde7 Nd7+ Kd6 c5 b8B c4 b7 Nb6 Kc5 c3 Bh1 Ra6 Rb2 c2 Bg2 Ra7 Nh7 Rf8 g8N Nd5 g7 Rf7 Nf8 c1R+ Nc2 Ra6 Nh6 Ra7 g8N Rg7 Ng4 Kf7 Nh2 Qe2 B6g5 Nf6 Nf3 Nfh5 Nf6 Qd1 Ne4 Qf1 Nd7 Kg6 Nec3 Rf7 Nfe1 Be5 Na1 Rc2 Bef6 Ng7 Nf8+ Kh5 Be7 Kg4 Bgf6 N7h5 Ne6 Rh7 Nd4 Rg7 Ndb3 Ra8 Ba7 Rf8 b8N Rff7 Nd7 Ne2 Bh6 Kg3 Bb8 Kf2 Bf4 Neg3 Nf8 Bd6+
R1qnR1nR/R3b3/N2r1r2/1N1R2N1/2Qnb1Q1/1NB1k3/4r1Rp/1Kq4b w - - 0 1 illegal: No possible last move
1b4K1/3n2q1/RQn1kN2/2b5/1r3Q1r/NrN1n1Q1/2NpQQb1/BQB2q2 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 b4 h6 g4 Qc7 f4 Qa5 f5 Qd8 Ra3 Ba6 Be2 Bc8 Rf3 h5 Rf4 gxf4 g5 Rh7 Bf3 Rh8 Bg4 hxg4 Kd2 Kf7 Kc3 a5 Kd4 d5 Ke5 f3 c4 f2 h4 f1R b6 d4 b5 d3 h5 d2 h6 a4 h7 e6 b7 g3 b6 a3 g6+ Ke8 f7+ Ke7 f6+ Kd7 g7 g2 Rh6 a2 Ne2 a1Q+ Nd4 g1B Nc3 Ra3 Nc2 Ne7 g8N Bf2 Qe2 Qe8 c6+ Kd8 c5 Na6 b8Q Be3 c7+ Kd7 b7 Bg7 f8Q Rd1 Qa7 Bg1 b8Q Qg6 Qb1 Rb3 Qb6 Bb7 c8N Bg2 Nd6 Nb8 Nb5 Qa6 Nba3 Nec6+ Kf4 Qf7 Kg5 e5 Kf5 Qe7 Kg6 e4 f7 e3 Nf6+ Ke6 Qg8 Nd7 f8Q+ Ke5 Qf2 Qf1 Qc4 Re1 Qce2 Ke6 Qfb8 Bh2 Qbg3 Rb8 h8B Bf8 Qff4 Rd1 Qef2 e2 Bg7 e1N Kh7 Rb7 Kg8 Rb8 Qa6 R8b4 Qae2+ Be4 Bh8 Ng2 Rg6 Ne3 Bg7 Ncb8 c6 Bg2 c7 Nc6 c8Q Re1 Qcb8 Qf7+ Kh7 Bc5 Qb6 Qe7 Nfd5+ Qf6 Qfh4 Rg4 Qd8 Qg1 Na2 Na7 Kg8 Rgb4 Qgh3+ Kd6 Qe4 Rf1 Qhf3 Be5 Qef4 Rd1 Q2g3 Qf2 Rh6 Rh1 Qa5 Qf1 Qff2 Rh4 Qab5 Nb8 Qa6+ Kd7 Qa5 Qe7 Ra6 Nac6 Qb6 Ke6 Bf6 Bed6 Ba1 Nd7 Nac3 Bb8 Nf6 Qg7+
1q5k/QBqNBQ1B/2b4p/b4nr1/QQ2nBr1/B6r/2RBN2q/K3n3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Bh6 Ra2 Qd6 Rb2 Qd7 axb5 Bg7 b6 Qd8 b5 Bf8 Rb4 axb4 d4 Kf7 Kd2 Kg7 Kc2 e5 Kb2 c5 f4 e4 g4 b3 b7 c4 b6 h6 d6 e3 d7 h3 d5 h2 g5 e2 d6 e1Q g6 Ra6 Bd2 Ra5 Nf3 Be7 f6+ Kf8 f7 Kg7 f8B+ Kf6 f5 Qh4 g7 Nc6 b8Q Bb7 Qa7 Ra3 Ne5 Qb8 d8B Qg3 d7 Nd4 Bc7 Bb4 Bg2 Bc6 b7 Ba5 d8B+ Ne7 g8B Nf3 Bd6 Ra4 Nc3 Ne1 Bh7 Rg8 Ne2 Rg5 Nd7+ Kf7 f6 c3+ Kb1 b2 B6f4 Nf5 Ba3 c2+ Ka2 c1R Be7 b1N Ka1 Rc3 Bf3 Qc7 b8Q Re4 Rf1 h1Q Qb4 Qhh2 Qda4 Rd3 Rg1 Nc3 Rg2 Rc4 Rf2 Ne4 Bg2 Qgh4 Bh1 Rh3 Bf3 Q4g3 Rg2 Ke6 f7 Rd4 f8Q Rc4 Qc8 Kf7 Qe8+ Kg7 Qf7+ Kh8 Rg1 Nd3 Rc1 Ne1 Rc2 Qb8 Bfe3 Qgc7 Bh1 Nf6 Bd5 Rcg4 Bf4 Bb5 Bc6 Ne4 Bb7 Bc6
2k2B1Q/R1b1R1QB/4N1pQ/1nn1q1R1/n2n1Q1b/2r5/RQ1Q2q1/1rK2b2 w - - 0 1 illegal: No possible last move, all moves rejected
2N3qk/1q1b3N/1n1q4/7N/4K3/brrNN1p1/Qb1RBrRN/QR1b2R1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 b3 f5 Qc2 f4 Ba3 h6 Be7 Nc6 Qd1 Nd4 Bg5 Nf5 gxf5 hxg5 Kf2 Kf7 h4 c5 d4 a5 e4 c4 h5 a4 e5 c3 f6 a3 h6 a2 d6 g4 d5 g5 d7 c2 b6 c1Q d6 Ba6 h7 Bg7 e6+ Kf8 e7+ Kf7 e8N Kf8 b4 Bd3 b7 Qa5 d8R Qe5 b8Q Qc8 b5 Qc1 d7 Qd5 b6 Bf5 f7 Qb2+ Be2 Ne7 b7 Qd6 Nd2 Ra3 Qa8 Nd5 b8R Rc3 Nc4 Nb6 Rb1 a1B Ne3 Qb3 Rb7 Bb2 Qa2 Ba3 Rb2 Bc2 Qda1 Bd1 Rc2 Be5 Nf6+ Kg7 f8N Rg8 Rbb8 Kh8 Nh5 Qbd5 Rd2 Qb7 Re8 Rb3 d8N Beb2 Nde6 Rg6 Nc5 g3+ Kf1 f2 Nd3 g4 Nf3 Re6 Kg2 f1R Rg1 Re5 Re6 Rc5 Rg6 Rcc3 Rg5 Qbc7 Nh2 f3+ Kh1 f2 Kg2 Na4 Nd7+ Qc8 Nb6 Qg8 Nc8 Nb6 Rg6 Qg7 Rg5 Qb7+ Rd5 Rb4 Rc2 Qbd7 Ng7 Na8 Rd4 Bc1 Ne5 Rb1 Rb5 Nb6 Rh1 Qb7+ Bf3 Rb4 Nh5 Rb2 Nf4 Kg7 h8N Rb4 Nhf7 Rb1 Ng5 Kh8 Rbd5 Rb4 Rb2 Rb5 Rb1 Bcb2 Nh7 Rbb3 Nc6 Re1 Nh5 Re2 Nb4 f1B+ Kg1 g2 Rg5 Rcc2 Rd2 Rf2 Nd3 Rcc3 Be2 Rf8 Nf5 Rf6 Kf2 Rf7 Ke3 Rf6 Nh4 Rf2 Nf5 g1Q Rg7 Qgg2 Rg1 Qgd5 Rg5 Qg8 Rg7 Bg2 Rg5 Bc6 Rg7 Nd5+ Ke4 Bd7 Ne3 Qbc7 Rf7 Nb6 Rf3 Qb8 Rfg3 Qa7 R3g2 g3 Nef1 Qa6 Ne3 Qb7+
3n2B1/k2BQ1b1/b2N3r/K4Br1/1q3Bn1/2pr1R1Q/p1Q1Rq1B/1Q2B2b w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 hxg5 exf4 e4 Nd7 Na3 Nb8 Nc4 Bb4 Ne3 fxe3 Qh5 Bd6 Qd1 Bf8 g4 Kd7 b4 f5 d4 a5 b6 c5 b5 h5 d6 c4 d5 e2 Kd2 e1R Kc3 h4 g6 f4 g5 a4 Kb4 a3 b7 h3 b6 c3 e5 a2 e6+ Ke8 g7 f3 e7 Kd7 g6 h2 Bh3+ Re6 Qc2 f2 Ne2 f1B Bf5 Nf6 g8B Rh3 g7 Nh5 Bf4 Bg2 Rae1 Ng3 Rhf1 h1Q Nd4 Rh4 Re2 Qe8 Nb5 Rh5 Rf3 Qg6 e8B+ Kd8 Bd7 Ne4 Bh2 Rg5 Bf4 Na6+ Ka5 Qg1 b8B Nf6 b7 Bh1 Bh2 Qh5 Bc6 Qh4 d7 Rg6 Bh7 Qgg4 g8Q Rg7 Qh8 Qf2 Bg8 Rg5 Qh3 Bg7 Bbe5 Qe4 b8Q Ng4 Bef4 Rh6 Qb7 Rb8 Qb6+ Nc7 Qb7 Ke7 Qb6 Ba6 d6+ Kf8 Qb7 Ne6 Qb6 Qf1 Qg1 Qf2 Qgb1 Qed4 Bd2 Rb7 d8B Rd7 Be1 Ke8 Bc7 Qc5 Bb8 Kd8 Bc7+ Kc8 Bb8 Re7 Be8 Kb7 d7 Qd6 d8Q Rd7 Qe7 Nd8 Bc7 Qdd4 Bcd6 Ka8 Bdf4 Rdd6 Bed7 Kb7 Nc7+ Ka7 Ne8 Qc4 Bg1 Qb3 Bgh2 Rd3 Nd6 Qb4+
1RBB1R2/1b6/R2Q1r2/1N2b1rR/1p3bnr/R3rk2/pQ3BrR/1qBK4 w - - 0 1 legal: proof: e4 b5 g4 c5 b4 f5 exf5 h5 a4 bxa4 gxh5 Qa5 Ba6 Qc7 Bf1 Qd8 c4 Bb7 d4 Qc8 d5 Bc6 b5 Bb7 Nc3 Nc6 dxc6 Ba6 Nd5 Qd8 Nb4 cxb4 c5 Bc8 f4 Kf7 h4 Kf6 c7 e5 b6 g5 c6 a5 h6 d5 h5 a3 h7 g4 b7 g3 b8B e4 h6 e3 Ba6 e2 Nf3 a4 Ba7 a2 Nd4 g2 Rh2 a3 Nb5 Bd6 Bf2 Bb7 c8R d4 c7 d3 Rb8 g1R+ Kd2 e1R c8R Qa5 Rc3 Re3 Qe2 Rg4 Kd1 Rg2 Qb2 d2 Rh5 Qc7 Rh2 Qc4 Rh5 Qe4 Rb3+ Kf7 f6 Kg6 f7 Qb1 f8Q Nf6 Rd3 Rg8 h8R Ng4 h7 Rg7 Rc3 Rf7 Rh2 Rf6 f5+ Kg5 Qd8 Be5 Qd6 Kf4 Rhf8 Ra7 h8R Kf3 R8h5 Bf4 Rd3 Be4 Rc3 Rg7 Bc8 Bb7 Rc6 Rg5 Ra6 Rh6 f6 Rhg6 f7 Rf6 Rfh8 Qh7 Rb1 a1B f8B a2 Be7 Qf5 Rf8 Qg6 Qa3 Bae5 Rb3 Qb1 Bd8 Qa1 Kc2 d1R Qb2 Rd4 Rba3 Rc4+ Kd2 Qb1 Kd1 Rc7 Rhh8 Rh7 Rh5 Rhh6 Rh2 Rh3 Rh5 Rh4
1KN1rkBQ/1pq4r/1n1r1bQ1/1B3p2/R1B1RrqB/p3Q3/5n2/1Q2Q1Q1 w - - 0 1 illegal: No proof kernel
RrQ2Bk1/1B4p1/3b3b/r1R2b2/1R1B1pB1/1N2p1RB/Q3B1r1/n3K1nr w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 axb4 c4 b3 e4 d5 e6 b4 e5 Qd6 Nc3 Qd7 Ne4 Qb5 cxb5 dxe4 d4 f5 a4 c5 h4 b2 b6 b1R b7 f4 a5 c4 h6 c3 e7 Kf7 e8B+ Ke7 a6 c2 d5 b3 h7 b2 e6 e3 h5 Ra7 h6 Bd7 d6+ Kf6 e7 Ke6 Be2 Nc6 b8R Rb7 a7 Bc8 a8B Rc7 d7 Nf6 d8B Nd4 Rb4 Rc6 B8h5 Rc5 e8B Rf5 Bb6 Ng4 Bb7 Ke7 Ra5 Nf2 Rh3 Nb3 Bd7 Na1 Rg3 Nh3 Nf3 Ng1 Bg4 Kf7 Qd2 Be7 Rc5 Bg5 Nd4 Rg8 h8Q Kf8 h7 Bh6 Rc6 Ra5 Rc5 Kf7 Bh3 Re8 Bdg4 Bf5 Nb3 Rf8 Qd1 Rb8 Bd2 Rc1 Qc8 b1R h8R Rb2 Bc3 Rcb1 Bd4 c1B Qd2 Rc2 Bd8 Rca2 Be7 Ba3+ Qd1 Rd2 Rd8 Rc2 Bf8 Kg8 Qc1 Rbb2 Qb1 Rc1+ Bd1 Rh2 Qa2 Rcc2 Bdf3 Rcg2 Be2 Rh1 Rd6 Bc1 Ra6 Bb2 Bf6 Be5 Ra8 Bc7 Bd4 Bd6
q2q1N2/n1N2b1N/2b1Nr2/nNrrR3/b6R/B6N/7B/kNK2qRR w - - 0 1 illegal: No possible last move
kr2Nr2/3RR2B/2p1q2R/1r2nR2/1b1RN3/B1p2K2/1nB1BR2/1b3nqB w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 dxc4 f4 b5 a4 e5 fxe5 Be6 Qb3 Bd7 axb5 Bf5 b6 Bh3 b5 Bc8 Qb4 axb4 Kf2 Kd7 e4 h5 g4 f5 d4 h4 e6+ Kd6 b7 c3 e7 h3 e8B h2 g6 b3 g5 f4 d5 f3 b6 c6 g7 b2 g6 Nh6 g8B Ra5 e5+ Kc5 e6 Qg5 d6 Ra8 e7 Bg7 d7 Kd6 d8R+ Kc5 Bd5 Bh3 Ra4 Qe5 Rd7 Ng8 Nd2 b1N Rd4 Bf6 g7 Nh6 g8B Nf5 Ne2 Nd6 Nc4 Qe6 Ng3 Bf5 Bg6 Rh5 e8R Nd2 Ree7 Bb1 Be2 Nf1 Bc2 Bg7 Bb2 Bf8 Ne4+ Kb5 Ba3 Ka6 Bh7 Re5 Rd8 Nd7 b8R Rh5 b7 Ka7 Rbc8 Ne5 Rdd7 Rb8 Rce8 Rg5 Rf7 Be7 Rf5 Bf8 Ree7 Rh5 Ne3 Ndc4 Ng4 Nb2 Ngf6 Rg5 Ne8 Rh5 Rg1 h1Q Rg6 Rg5 Rh6 Rh5 Rg7 Bb4 Rg2 Ne3 Kg3 f2 Kf4 f1R+ Rf2 Rg1 Re7 Rg8 Rd7 Rf8 Re7 Nf1 Rd7 Rc8 b8R+ Rc7 Re7 Qg1 Rd8 Rb7 Rdd7 Kb8 N4d6 Ka7 Bh1 Ka8 Ne4 Rb5 Bg4 Rb8 Be2 Nf7 Kf3 Rg5 Rff6 Rgb5 Rf5 Ne5+
1r4rN/1RN2B1k/K5pN/1BN1b2p/2b2np1/B2nR1q1/n4B1N/2B1Nq2 w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 f5 axb5 fxg4 d6 Bb7 Ra2 Ba6 Ra1 Bc8 h4 g6 d4 Qf6 h5 Bf5 h6 Qf7 d5 Bc8 Qd4 Qg7 hxg7 exd4 Kd2 Kf7 Kd3 a5 Kc4 h5 f4 c5 e4 a4 b4 d3 d7 d2 d8N+ Kf6 f5 d1Q d6 a3 b6 a2 Kb5 c4 b7 c3 d7 c2 e5+ Ke7 e6 Kf6 e7 Ra7 e8N+ Ke7 Nf3 Ra6 Ne1 Qd6 Nd2 Ra4 Rb1 a1N Rh3 Qc7 Nf7 Nc6 b8N Ra3 d8N Nh6 g8B Ra8 Na6 Qf4 Nec7 Kf6 Re3 Kg7 Nc5 Ne5 Ndf3 Bb7 Nh2 Ba6+ Kb6 Qf2 b5 Nd3 Rb2 Bd6 f6+ Kf8 Rb4 Nf5 Nh6 Ng3 f7 Kg7 Be2 Nb3 f8B+ Kf6 Ndf7 Be5 Bd6 Rb8+ Ka7 Kg7 b6 Bc4 b7 Qf1 Rb5 Qg2 Ka6 Qg1 Bf1 Ne2 Be7 Qg3 Bd6 Rf8 b8B Nef4 Ba7 Rb8 Be2 Nd4 Bf1 Nde2 Be7 Nc3 Bb6 Rh7 Nh8 Na2 Bf7 Rg8 Nb7 Rb8 Bea3 Rg8 Nc5 Rb8 Bd2 c1Q Ba7 Qd1 Bdc1 Qdf3 Be2 Qf1 Bb6 Kf8 Ba7 Rg7 Bb6 Rg8 Ba7 Be6 Rb7 Kg7 Bb6 Kh7 Ba7 Nb2 Bb5 Nbd3 Na4 Bb3 Re2 Bd5 Bf2 Rgf8 Re3 Bc4 Nc5 Rg8
qN2R3/k1pB3B/1n3K2/pRBR4/n5RB/3Bp1p1/2b2B1r/RNqn3r w - - 0 1 legal: proof: f4 b5 a4 d5 axb5 g5 fxg5 Bb7 c4 dxc4 e3 Bc8 g4 h5 d4 Na6 d5 Bh6 g6 Nb8 g5 Bg7 Qg4 Bd4 exd4 hxg4 Kf2 Kd7 Ke3 e5 Ke4 a5 Kf5 c3 b4 g3 h4 e4 g7 c2 d6 f6 g6 Rh7 b6 Kc6+ d7 Kb7 h5 Ra6 b5 Qe7 h6 Rh8 h7 Qa3 d5 Qe3 d6 Qa3 Ne2 Ra7 Be3 c1N Bf2 e3 Rh4 Ra8 Rg4 Qa2 Nd4 Ra6 Bd3 Ra8 Nc6 Na6 Nb8 Qc2 Ke6 Ne7 g8B f5 g7 f4 Kf6 f3 d8R Qc6 Be6 Nc5 g8B Qd5 d7 Na2 Re8 Na4 d8R Qe4 Rd5 N2c3 Bf5 Nd1 Bge6 Nc6 Bd7 Ne5 Bg6 Nc4 Bgf5 Rg8 h8B Rg5 Bh7 Rh5 Bg7 Rh1 Bh6 Ra6 Bg5 Ka8 Bh4 Bb7 Rc5 Bc6 b7+ Ka7 Rcg5 Ncb6 Rf5 Bd5 Rfg5 Bb3 Rh5 Bc2 Rd5 Nc8+ Nc6+ Kb6 b8B Kb7 Ba7 Ncb6 Be1 f2 Nb8 f1Q+ Bf2 Nc8+ Bb6 Ra8 Bc5 Ncb6 Na6 Rc8 Nb8 Qe1 Re7 Rh8 Re8 Nc4 b6 Qd2 Ba3 Qc1 Bd6 Ka8 b7+ Ka7 Bc5+ Ncb6 Na6 Bb3 b8R Qg2 Ree5 Qe4 Rbe8 Bc2 Nb8 Rh2 Rd4 Qb7 Red5 Qa8 Rb4 Rh1 Rb5 Rh2 Bhg6 Rh5 Bh7 Rh1 Bg5 R5h3 Bh4 R3h2
1rB1nN2/K1Bn3R/1rB1n2b/1R1q2B1/6NR/1n2bk2/1BrB4/3nRq1N w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Qb3 f3 Qb4 Be6 Qe4 f4 Qf5 Bc8 Qg5 Bf5 gxf5 Nf6 Qh4 Ng8 Qg4 hxg4 Kf2 Kd7 e4 Kd6 b4 Ke5 h4 a5 d4+ Kd6 f6 c5 h5 g5 f7 a4 b6 c4 b5 a3 e5+ Kd7 d6 Ke6 d7 Kf5 h6 Ke4 b7 a2 d5 c3 d6 c2 b6 Qc7 d8B Qc8 h7 Nf6 e6 Qc4 d7 Ne8 e7 Nc7 e8B Qe6 Bb2 c1R Ne2 Bh6 f8N Ra6 Rh4 Rc2 Na3 Qd5 Re1 a1N Bh3 Nb3 Nc4 Rg8 h8R g3+ Kg1 g4 Bg5 g2 Kf2 g1N d8B Nd7 Rh7 Rh8 b8B Rg8 b7 Rb6 Ne5 g3+ Kf1 f2 Ng4 Rh8 Bde7 Rg8 Bb4 Nf3 Bd2 Nfd4 Kg2 f1N Kg1 g2 Kf2 f3 Ng3+ Kd3 Nh1 Ne3 Ng3 Ne5 Nh1 Ke4 Bc6 Ne8 Bc7 Nd7 b8R g1B+ Kg3 Kd3 Kf4 f2 Rb7 Nd1 Rb8 Ra6 Rb5 Rb6 Bd6 Ne5 Bc7 Ne6+ Kf5 N8g7+ Kf6 Nd7+ Kf7 f1Q+ Ke7 Nec5 Kd8 Be3 Kc8 Ke4 Bbe5 Nce6 Bb2 Ra6 Kb7 Rb6+ Ka7 Kf3 Ng6 Rgb8 Nf8 Rc4 Ngf2 Ne8 Bf5 Rc2 Ng4 Ned4 Be6 Ndc5 Bed7 Nde6 Bc8 Nd7
r3NnRr/B2qr2k/2BB1B1r/3rN1R1/1K1N1p1q/3bnN2/p2NR3/7N w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 h5 axb5 Bc5 Qa4 Bd4 g5 d5 cxd5 Bc3 Qe4 Bd4 Qf3 exf4 Qg4 Bf6 gxf6 hxg4 b4 Kf8 d4 c5 Kd2 a5 Kc3 g5 h4 a4 e4 g3 e5 f3 d6 g2 b6 f4 f7 Kg7 f8R c4 h5 g4 b7 a3 h6+ Kh7 d5 g3 e6 f2 b5 a2 b6 Qd7 e7 Nc6 b8B Na5 e8N Qb5 b7 Bh3 d7 Bf5 d8N Qa4 d6 Bc8 d7 Nc6 Rh5 Kg6 h7 Nh6 Nf7 Nd8 Nfd6 Ne6 d8N Qb5 Be3 Qd7 N8f7 Nf5 Bea7 Ne3 Nf3 g1Q Ne4 g2 Bd6 Qh1 b8N g1R Nc6 Ba6 Bg2 f1R Nf2 Re1 Ncd4 Qh4 Nbd2 Rh1 Kb4 c3 Rc5 c2 N7e5+ Kh6 Rg8 c1R Rb5 Rh2 Nh1 Rc5 Rd1 Re2 Re1 Nf8 Ra5 Bd3 Rb5 Rf2 Re2 Rc7 Nec4 Rf1 Rbg5 Rc5 Nce5 Re1 Ng1 Ra5 Bc6 Rd5 Ngf3 Rg1 Rf5 Rg7 Rg5 Re7 R8g7 Rg8 h8B Rh3 R7g6+ Kh7 Bf6 Rh8 Rg8 Qf2 Bdc5 Rh6 Bd6 Qh4
5q1R/2b1B2Q/rk2Bn2/R1b1Bn2/nB1r2BN/1Bq1n3/Kb1p1B2/1B5B w - - 0 1 legal: proof: e4 b5 d4 f5 f4 fxe4 a4 c5 dxc5 g5 axb5 Kf7 f5 Ke8 g4 Nf6 Nc3 Nd5 Nce2 Nf6 Nf4 gxf4 Bd2 Bb7 Bc1 Bd5 h3 Bf7 g5 Bh5 Kd2 Bf3 Ke1 Bg4 hxg4 Ng8 Kd2 h5 Kc3 a5 Kb3 d5 c4 Kd7 f6 Kc7 f7 e5 c6 d4 c5 a4+ Ka2 d3 b4 f3 b6+ Kc8 b7+ Kc7 g6 e3 b5 f2 g7 a3 g5 e4 g6 e2 Qc2 e1N Nf3 e3 Nh4 d2 Bg2 Be7 f8B Nf6 g8B f1N g7 e2 Be6 Nf3 g8B e1B Qh7 Ne3 Bb3 Bg3 Bge6 Nbd7 b8B+ Kc8 b6 Bc7 Ba7 Nd4 Bb2 Ndf5 Be5 Rg8 Rh3 Rg4 Bh1 Rd4 Bd6 Qe8 b7+ Kd8 b8B Nb6 Be5 Na4 Bb6 Bd6 Ba5 Qe7 Bb4 Ra6 Ba7 Qe8 Bf7 Kc8 Be7 Qf8 Bb6 Kb8 Bfc4 Kc8 Bd3 Kb8 Bb1 Ka8 Ng2 h4 Rh2 h3 Ba7 Bb8 c7 Kb7 c8B+ Kc6 Bb6 Bbc7 Nh4+ Kb5 c6 Bc5 Re2 h2 Bce6 Rd6 Rg2 Rd5 Rg8 Rd4 Bhe4 h1Q Rh8 Qc1 Bh1 Qc3 Ba7 Ba5 c7 Bab6 c8B Bd8 Bab8 Kb6 Bg3 Bc7 Bf2 Bd8 Be5 Bc7 Bbd5 Nh6 Bg4 Nhf5 Bce6 Qc1 Kb3 a2 Bc4 Qc2+ Ka3 Qd3+ Bb3 Qc3 Bc2 Qc4 Rb1 a1B Rb2 Qd3 Bb1 Qc3 Rc2 Qc4 Ka2 B5d6 Qg6 Qc6 Rc5 Bb2 Ra5 Qc3 Qh7 Bc5
1B1R1BRb/1Q2RR2/Q2nQ3/bb3B2/b2q1rNB/3b4/n1r1Q3/kn1n3K w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Ba6 Na3 Nc6 Nc2 Bb7 axb5 Nb8 b6 Ba6 b5 Bc8 Nb4 axb4 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 Kd4 f6 e5 b7 c5 d3 Kc3 g5 h5 f7 b3 d4 e4 f5 c4 d6 h3+ Kh2 h4 f6 e3 b6 e2 d7 e1B d5 b2 d6 Ra4 g6 Nh6 g7 Nc6 g8R Nd4 b8R Ba6 b7 Bg7 f8Q Nc2 f7 Ne3 Nf3 Nhf5 Ra2 b1N Ne5 Rh7 Ra8 Bh8 b8Q Rh5 Qg4 Nd1 Qe8 Qf6 d8B Bb5 Kg1 h2+ Kg2 Rh7 f8B Rc7 Bd3 Rc6 Rf1 h1B+ Kh2 Be4 Re2 Rc7 Bd2+ Kb2 Qb7 c3 Bf4+ c2 Rf3 Bb4 Kh1 Ka1 Qgg6 c1N d7 Qg7 Qga6 Rc2 Ng4 Na2 Bf6+ Bc3 d8Q Qd7 B6e7 Ba5 Qdc8 Qd5 Bc7 Nd6 Qcd7 Bg6 Rd8 Re4 Rff2 Qd4 Rf7 Rf4 Bb8 Bf5 Bf6 Ba4 Qdc8 Bfd7 Qe3 Bdb5 Bf5 Bd3 Qef3 Bdb5 Ree7 h3 Qe6 h2 Qfe2 Bd3 Kg2 h1B+ Kh2 Bhc6 Bh4 Be8 Kh1 Beb5
RK2R3/4n1nk/nQ2Q2b/4q2Q/1Nn2Brb/NnNq3Q/5r1n/4RRN1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 Kf2 Kf7 h4 g5 d4 Kg7 e4 a5 b4 c5 b6 c4 b7 a4 h5 a3 h6+ Kh7 b5 a2 d6 c3 d5 c2 b6 Qd7 f6 Ra7 e5 Ra4 e6 Ra7 f7 Qb5 e7 Qd3 e8N Ra4 d7 Ne7 d8N Na6 b8Q Nc7 b7 Re4 Bd2 c1N d6 Nb3 d7 Ra4 Nd6 g3+ Ke1 g4 Nc3 g2 Kf2 Bg7 Qc8 Rf8 b8R Nc5 Rab1 a1N Ndb5 N5e6 Ra8 Nb3 Na3 Rb4 Nc6 g3+ Ke1 Bf6 d8Q Ng7 Qe6 Bh4 Qde2 Ra4 Nb4 f2+ Kd1 f1N Qh5 f3 Qd4 f2 Qdb6 Kh8 h7 Nh2 Rc1 f1N Ra1 Qd4 Ke2 Ne3 Rf1 Nc4 Bf4 Qc5 Kd3 Qe5 Nh3 g1B Re8 Qb5 Ke4 Be3 Ng1 g2 Re1 Nb2 Ra8 Qd3+ Ke5 Bd2 Ncd5 Be3 Kd6 Nc4+ Kd7 Qb1 Nc3 Qd3+ Bd6 Bh6 Re8 Rg8 f8R Ra5 Ra8 Rf5 Rfe8 Rf2 Rf1 Qf5 Bf4 Qe5 Nge2 g1Q Re1 Qgg5 Rhf1 Qg3 Ng1 Nc6 Kc8 Ne7+ Kb8 Qd3 Qh3 Nge6 Qe2 Kg7 h8Q+ Kg6 Qf6+ Kh7 Qh5 Rg4 Qff7+ Ng7 Qfe6 Na6+
n1b1n1Q1/1B4Bb/Q3bR2/N1N1k3/1q1nr3/QN1r1BK1/N4Qrr/1B4b1 w - - 0 1 illegal: No possible last move
n1Q1Qb2/3R1Bnq/1kqRbR2/2r3nN/B3b1BQ/4R1r1/p4Q2/B1q1K3 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 h4 Bf8 b4 g5 hxg5 c6 b6 Qc7 Na3 Qd8 b5 c5 Nc2 Qd6 Nb4 cxb4 Ra5 Qe7 Ra1 Qd8 e4 Kd7 d4 f5 g4 a5 b7 Kc7 d6+ Kb6 d5 h5 e5 f3 e6 f4 d7 b3 g6 h4 e7 a4 e8B a3 d6 h3 g5 h2 g7 a2 g6 b2 Be2 b1N Nh3 Rh7 Rf1 h1B Qc2 Nf6 g8B Nc6 g7 Ne7 Bgf7 Ra5 g8Q Rh4 Qgh7 Nc3 Bb2 Rg4 Qh4 Qc7 d8R Nce4 d7 Nh5 b8Q+ Qb7 Rd1 Ng5 Rd3 Nd5 Ba1 Rg3 Re3 Ng7 Bd1 Bg2 Qf2 Nc7 Ba4 Bh1 Be6 Na8 B8f7 Bg2 Bg4 Bh1 Qe5 Qc6 Qe6 Kb7 b6 Rc5 Qe5 Ka6 b7 Kb6 Re8 Bg2 d8R Be6 Re7 Bh1 Rd6 Bg2 Qe2 Bh1 Red7 f2+ Kd1 f3 Nf4 Bg2 Nh5 Bh1 Qf6 Bg2 Qe7 Bh1 Qe8 Bg2 Re1 f1Q Qf2 Qh1 Rf1 Qh3 Qg1 f2 b8Q+ Ka5 Qbc8 Be4 Rfe1 f1Q Qf2 Qc4 Rf1 Kb6 Ke1 Qc2 Qd2 Qb2 Rf6 Qc2 Qf2 Qc4 Bf3 Qf5 Be2 Qh7 Bg4 Qc1+
k1NQR3/1rn1nR2/n1N5/1N1bRN2/1R2r3/K1Bnb1Q1/QQn2p2/b6q w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 d5 axb5 h6 cxd5 h5 Bh3 exf4 gxf5 Ke7 Bg4 hxg4 Qc2 Kd7 Qd1 Ke8 b4 Kd7 e4 c5 h4 Kc7 d4 Kb7 Kd2 a5 Kc3 g5 Kb3 a4+ Ka3 f3 h5 c4 d6 f2 b6 g3 h6 g4 b5 c3 d5 g2 f6 g3 f7 c2 e5 Na6 e6 Rh7 e7 Qd7 e8N Qf5 Nc3 Qd7 Qd2 Qc6 Nf3 g1B Nh4 g2 Rb1 Bh3 Bb2 c1N Nf5 Bg7 f8R Nb8 d7 Qc8 d8Q Nd3 d6 Ne7 d7 Qc6 Rf7 Bh2 Rhe1 g1N Re5 Bg2 Rbe1 Ra5 Ned6+ Ka8 Nc8 Bd5 Qg8 Bf4 d8Q Bh8 Qg3 Be3 Ba1 Nf3 Qa2 Rg7 h7 Ng5 Re2 Na6 b7+ Kb8 Rb2 Ne6 Rb4 Nec7 Bb2 Rg4 Ba1 Bf6 h8R Re4 Re8 Bg7 Ne2 Qh6 Bc3 Qh1 Ned4 Bf6 Nb6+ Ka7 b8N Bg7 Nc8+ Ka8 b6 Rb5 Nbc6 Bh8 Qc4 Bf6 Ka2 a3 Qb3 Rc5 Nb5 Bh8 Qc4 Bg7 Kb3 a2 Ka3 a1N Qa2 Nc2+ Ka4 Qf3 Na3 Kb7 Bb2 Nb8 Rc4 Na8 Re6 Bgd4 Re5 Qh1 Kb3 Ka6 b7 Nc7 Ka4 Rb5 Ba1 Nd7 b8Q Rb3 Qb4 Nb8 Qc3 Rb6 Rb4 Kb7 Nb5 Ka8 Qca3 Rb7 Qc1 Nce1 Ka3 Nba6 Qcc2 Bc3 Qe2 Bcd2 Bd4 Bc3 Qed2 Ba1 Bc3 Rf4 Qdc2 Re4 Qcb2 Nc2+
2rBQ2B/2Rb2rR/2pbQ1n1/1RQ2BK1/N2rQ3/1r3n2/kB2b3/1qRb4 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Ba6 Na3 Nc6 Nc2 Bb7 axb5 Nb8 b6 Ba6 b5 Bc8 Nb4 axb4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 d4+ Kd6 g4 h5 f6 e5+ Kg5 c6 f4 e4 f5 b3 b7 b2 b6 b1B Ne2 h3 Qc2 h2 Nc3 h4 Na4 h3 Bd3 e3 Bb2 Nd7 b8Q+ Qc7 b7 e2 f7 e1R f6 Rd1 Bf5 Rg1 Qe4 Ba2 Rc1 Rh4 Qa7 Qb6 b8R Qb3 Rb5 Ne5 Qb6 Be7 f8B Bd7 Bg7 Rc8 Bh8 Bb1 Qd8 Bc2 Qe8 Bf8 f7 Bd1 Qc2 Ne7 Qe4 N7g6 Qe6+ Kc7 Qe8 Bd6 f8Q Qd3 Qe6 Qb1 Qee8 Ba3 Qc5 Rg3 Qe6 Rb3 Qe8 Rh7 Qe6 Rg7 d6+ Kd8 d5 Be2 Rhe1 h1B Red1 Bhf3 Rh1 Bd1 Rh2 Bfe2 Rh1 Be8 d7 Kc7 d8R Bd7 Rf8 h2 Rf7 Rgg8 Rh7 Rg7 Re1 h1R d6+ Kd8 Rg1 Rhh3 Rh1 Rhd3 R1h3 Rd4 Rh1 Be8 d7 Kc7 R1h3 Rg8 Rf7 Rg7 Rh7 Bb4 Ra5 Kb7 Rb5+ Ka6 d8B Ba3 Rc7 Bd7 Kh6 Nf3 g5 Ngh4 g6 Bb4 Qce7 Bd6 Kh5 Rf7 g7 Ng6 g8Q Rg7 Rb8 Ka5 Qge8 Rb6 Qg5 Kb4 Qge3 Bc4 Qg5 Kb3 Kg4 Rb4 Rb5 Ka2 Kh5 Rb3 Qg1 Rdd3 Qc5 Rd4 Kh6 Bce2 Kh5 Nh2+ Kg5 Nf3+
1B1Q2BR/5p2/q2p1QBR/n5b1/n2r1R1R/K1kNB1qQ/r5Q1/q2b2q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 Kc2 a5 Kb3 g5 e4 g4 h4 d6 c5 g3 h6 d3 b6 d2 h5 g2 c6 Qe8 b7 Bg7 c7 Qd7 h7 Ra6 h6 Ne7 Ne2 g1Q Ra4 Qa7 Qc2 d1Q Be3 Nec6 Nc1 Qa8 Nc3 Rg8 h8Q Nb4 h7 Qf3 Bd3 N8c6 b8R Bb7 c8Q Bf6 Rh4 Qf1 Qg2 Ke7 e6 Rg5 e5 Qg1 Bg6 Qe1 Nd3 Qg1 Qg7 Rf5 Qgh8 Na2 Raf4 Qa7 Ka4 Bg5 b4 Ba8 b5 Qb6 Kb3 a4+ Kb2 Qa5 b6 a3+ Kb3 Ra7 Qg7 Rc7 b7 Qa6 Qgh8 Nab4 Qg7 a2 Kb2 Na5 Ka3 a1Q+ Na2 Rc6 Rfg4 Rf3 Rf4 Rc4 Qgh8 Nbc6 Qg7 Nd8 Qf6+ Ke8 e7 Qh3 Qcg4 Qg3 Q4h3 Rf2 Rc8 Rd4 b8B Rb2 Rc5 Ne6 h8R+ Kd7 Bh7 Bc6 Bg8 Bf3 Rd5 Kc6 e8Q+ Kb6 Qed8+ Kc6 Rb5 Nc5 e6 Na4 e7 Bh6 Rbh5 Bg5 R5h6 Kb5 e8B+ Kc4 Bd7 Bd1 Bf5 Qb1 Nac1 Kc3 Bg6 Qa1+ Na2+ Rxa2+
1N2B1R1/1r2bp2/1Q1R2B1/B1rr3K/Bb3R2/1n1r1nR1/QpQ3Q1/1bn1k3 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 Na3 e5 fxe5 d5 cxd5 Ra5 Qb3 Ra4 Qd1 Ra8 g4 Qd7 h4 Qb5 h5 Bd6 Nc2 Bc5 Ne3 Be7 Ng2 Qd3 Nf4 gxf4 g5 Qg6 hxg6 Bf8 Kf2 Kd7 Kf3 b5 Kg4 c5 e4 h5+ Kh4 f3 a4 b3 d4 f2 e6+ Kd6 g7 b2 a5 b1R g6 b4 a6 b3 a7 c4 e7 c3 e8B c2 Ra4 Nd7 Bd2 c1B Ne2 Ne7 g8Q Nc5 g7 Ba3 Rh3 Bf5 Qc2 Nc6 Ba5 Nd3 Rg3 Rd8 a8Q Nce5 Rb4 b2 Ba4 Rd1 Bh3 Bh7 Bf5 f1N Bg6 Nd2 Kg5 h4 Kh5 Nef3 e5+ Ke7 d6+ Ke6 d7 h3 Qa6+ Kd5 e6 h2 e7 Nc1 e8B Ndb3 Qb6 Rb8 d8R+ Bd6 Rd7 Rd3 Qa7 Rb7 Rc4 Ke6 d5+ Ke5 Rf4 Be7 d6 Bb4 Nd4 Kd5 Nc6 h1R+ Rh3 Re1 Nb8 Red1 Rg3 Ke5 Qa6 Rd5 Rd8 R1d3 d7 Rc5 Rc8 Rdd5 d8Q Rd3 Qdb6 Rcd5 Rf5+ Ke4 Rd8 Rc5 Rd6 Ke3 Qcc4 Kf2 Qc2+ Ke1 Qac4 Nbd4 Qa2 Rd5 Qf8 Ndb3 g8R Ng5 Rf4 Nf3+ Kg4 Rc5 Qh6 Rcd5 Qhh2 Rc5 Qhg2 Rcd5 Bh5 Be4 Bg6 Rhh5 Bec6 Rhe5 Be8 Bf5+ Kh5 Rc5 Bad7 Red5 Ba4 Re3 Qc4 Bc2+ Kh6 Bb1 Qcc2 Ne5 Kh5 Red3 Rgg4 Nf3+ Rg5 Ne5 Rg3 Nf3+
2r3NR/bR2Qn2/1BpR3p/N1K1nbQ1/2Npq2q/n2Q1N1r/k7/5RQ1 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 a4 Kf7 axb5 Ke8 h4 gxh4 c5 e6 c6 Kf7 cxd7 Ke7 d4 Kf6 d5 Kf7 d6 Na6 Bc4 Nb8 Bd5 exd5 Ke2 a5 Ke3 h3 Kd4 h2 g4 a4 b4 h6 f4 a3 f6 Ke6 g5 a2 f5+ Kf7 b6 Na6 b5 Nb8 b7 Ne7 g6+ Kg8 f7+ Kg7 b6 Kf6 g7 Ng8 Kc5 Ke5 f6 Be7 f8Q Ke4 f7 Bg5 Na3 Nc6 b8R Nf6 g8N Ne5 b7 Nfg4 Nc4 Ra3 Qe7 Rh3 f8R c6 Be3 Bh4 Nf3 Bf2 Qg1 Kd3 Rd1+ Kc2 Rf7 Qe8 d8N Kb3 d7 a1N Ra8 Nc2 b8Q+ Nb4 Rh7 Nf7 Nb7 Nge5 d8Q Nc2 Qbd6 Bf5 Nba5+ Ka2 Qeg5 Qe6 Q8e7 Na3 Ra7 Qg6 Rb7 Qh5 Bd4 Qh4 Qdg6 Bc8 Qd3 Bf5 Q1g4 Be3 Rhf1 h1Q Qg1 Bf2 Nf6 Rc8 Rh8 Qg2 Ng8 Qgg4 Kb4 Qe4 Bb6 Bg3 Kc5 d4 Rde1 Ng6 Re3 Bb8 Ree1 Ba7 Re3 Qeg4 Re6 Qe4 Rd6 Nge5
2q1q3/3p2Bn/k4B2/2pr1QNN/1Qr4Q/2K2nrQ/B1p2b1N/B1nN3R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 b5 c4 bxc4 g4 h5 gxh5 Bb7 Qg4 Ba6 Qd1 Bc8 d4 c5 a4 Rh7 b5 Rh8 d5 Ba6 Ra2 Bc8 Rb2 Bb7 Rb4 Bc6 dxc6 axb4 Kd2 e5 f4 g5 h4 e4 h6 g4 h5 g3 b6 b3 b7 e3+ Kc3 b2 c7 g2 c8Q e2 h7 e1N h6 Ke7 f6+ Ke8 f5 Bg7 a5 Na6 b8Q Nf3 Bg5 Nh2 Qd3 Ng4 Qh3 Nf2 Nf3 g1Q Qb4 Nd3 Nh2 Nb8 a6 Qg3 a7 Ne7 Bg2 Ng8 Bd5 Qf2 Qa6 Nc6 Qaa4 Rb8 a8N Qe3 Nb6 Qc8 Bh4 Nd4 f7+ Kf8 Be6 Nf6 Nd5 Nf3 Nf4 Ke7 f8N Kd8 Nh5 Rg8 h8B Kc7 h7 Rb5 Bf7 Qee8 Ne6+ Kb6 Ng5 Nc1 Be6 Bh6 Bg7 Kb7 h8B Nh7 f6 Kb6 Qba3 Rb4 f7 Kb7 f8Q Kb6 Nd2 b1R Nde4 R1b2 Bf7 Rd2 Nf2 Rd5 Nd1 Kb7 Be6 Kb6 Qff5 Kb7 Ne4 Be3 Bhf6 Bf2 Ng5 Kb6 Qh4 Kb7 Qa5 Ra4 Q5b4+ Ka6 Kc2 c3 Bf7 Rd6 Ba2 Rd3 Qab3 Rd5 Q3a3 Nd3 Kb3 c2 Ba1 Nc1+ Kc3 Rd2 Bf6 Rg6 Bhg7 Rd5 Nf7 Rg3 Ng5 Rg4 Qh3 Rg2 Qbh4 Rg3 Qb3 Re4 Qb4 Rc4+
1N1n1K2/1nR4q/1Q1pq2k/6p1/4Nr2/N2bR2p/1N1Q1qpb/B1QRQ1R1 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 a5 axb5 f5 Bg2 Ra6 Bd5 fxg4 h4 c5 dxc5 Rg6 h5 e6 hxg6 exd5 Kd2 h5 Kc3 a4 Kb4 h4 c4 h3 e4 d4 f4 a3 g7 Kf7 f5 d3 e5 d2 b6 g3 f6 Kg6 f7 g2 b7 a2 e6 Nf6 g8N Bd6 f8R Rh6 e7 Ne8 Ne2 Rh8 Nf4+ Kh7 Nd3 Kg7 Rf3 Rh7 Na3 Nc7 e8Q Be5 c6 Rh5 Kc5 Rh6 b4 Bg3 b5 Bh2 b6 Bg3 Rg1 Rh4 Bb2+ Kh7 Nf6+ Kg7 Re3 Rg4 Ne4+ Qf6 Qe2 d1Q Qd2 Qe2 Rad1 Bh2 Ba1 Nb5 c7 Qf1 Nb2 Nc6 b8Q Ba6 c8R Kh6 b7 Q1f2 Rc7 Nd6 Qbd8 Rf4 b8N Nf7 Kd5 d6 c5 Nd4 c6 Nb3 Qee7 Qh8 Ke6 Na5 Qee8 Bc4+ Ke7 Qh7 Kf8 Bd3 Qe5 Nb7 Qea5 Bb1 Qb6 Bd3 Qe8 Be2 Qe5 Bd3 Qec3 Bc4 Qe1 Bd3 Qcd2 Nc5 Rd7 Na6 c7 Nc5 c8Q Nb7 Qcc1 Qf1 Nbc4 Qf2 Bb2 a1Q Rc7 Qa2 Ba1 Qb3 Nb2 Qc4 Na6 Qe6 Nb8 Nfd8+
6B1/kn2q2r/n1r1np2/2RB4/b3NB2/B1N2K2/rN3pp1/2BBBrRB w - - 0 1 legal: proof: d4 b5 g4 e5 f4 exf4 a4 Ke7 axb5 Kd6 e4 h5 gxh5 Nf6 d5 Ne8 e5+ Kc5 e6 Nf6 e7 Ng8 d6 c6 Qd5+ cxd5 e8B Be7 dxe7 d6 Bd2 d4 Be3 Qc7 Bc1 Qd8 Kf2 Kb6 h4 g5 b4 a5 c4 a4 c5+ Ka7 c6 d5 h6 a3 h5 d3 h7 d4 b6+ Ka6 h6 g4 b5+ Ka5 c7 d2 b7 Kb6 Ne2 d1R Nbc3 a2 Na4+ Ka7 b6+ Ka6 Rg1 d3 Nb2 d2 Nc3+ Qd3 Bg2 f3 Ba4 Qc2 e8B Bf5 c8B Nf6 Bec6 Nfd7 Bd5 Qe4 Bh1 Nc5 Bce6 Rf1+ Kg3 f2 Bd1 Rc8 h8B Rc6 h7 Qe2 Be5 f6 h8N Bc2 Nf7 Ba4 Nd6 Qe3+ Kg2 g3 Bg8 Ne6 Nde4 Qe1 Rb1 a1N Kf3 g2 Bd6 Nb3 Ba3 Nbc5 Bb4 Nbd7 b8B Nb7 B8d6 Nb8 Ba5 Ra7 Ba3 Ra8 Nd3 Ra7 Rb5 Ra8 Nb2 Ra7 Bc2 d1R Rc5 Rd2 Bd1 Re2 Nc4 Ra2 Nb2 Nd6 B5b4 Rh7 b7 Ka7 Ba5 Na6 b8B+ Ka8 B5b4 Nb7 Bbf4 Ka7 Ba5 Qd2 Ne2 Qd4 Be1 Qe5 N2c3 Qd6 Bh6 Qf8 Bhf4 Qe7
q3N3/NqN2b1N/1B6/2Qr1kbR/NQnQ3q/1b1KQ2b/4p3/nN1N4 w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 b5 b4 Be6 a4 Bc8 Ra3 Kd7 Rb3 Bb7 axb5 Bc8 b6 Ke8 b5 Nc6 Rb2 Nb8 Rb4 axb4 g4 g6 f4 Bh6 h4 Na6 f6 Bd7 f5 Be6 f7+ Kd7 f6 Qf8 g5 Nb8 Bh3 Qd8 Bf5 gxf5 Nh3 Bf8 Ng1 Ra3 g6 Rg3 Ne2 Rg5 hxg5 Kd6 Ng1 Bc8 Qh5 Kd7 Qe2 Ba6 Qd1 Bc8 Ke2 c5 d4 h5 g7 e5 d6 Ke6 d7 c4 g6 f4 b7 b3 d5+ Kf5 b6 c3 d6 h4 Kd3 b2 Ne2 f3 Be3 c2 Nec3 Be7 f8Q c1Q f7 Nf6 g8Q h3 g7 Na6 b8Q f2 b7 h2 Bb6 f1B+ Qe2 Ne4 Nd1 Rh4 Qh8 Qc6 g8N Bh3 Nf6 Nd2 Qe3 Nc4 Ne8 Rh5 Qa7 Qg2 b8N Qa8 Nc6 Bg5 Qc5 Qe7 d8N Be6 d7 Qf6 Nb7 Nb4+ Kc3 Qh6 d8N Nc2 Kd3 Na1 Qfd6 Bd5 f8N Bf7 Nde6 Qf6 Qb4 Qfd8 Nbc5 e4+ Kd4 e3 Na4 e2 N6c7 Qdb8 Kd3 Qab7 Qhd4 Q8a8 Rg1 h1Q Nh7 Qh2 Rh1 Qf4 Qf8 Qh4 Qfe7 Rh6 Qee3 Rd6 Qaa5+ Rd5 Qac5 Bf1 Na3 Bh3 Na7 b1B+ Nc2 Ba2 Na3 Bb3 Nb1 Qf4 Rh2 Bf1 Rh4 Bh3 Rh5 Qh4
2b2Bk1/2B1p3/4p1bn/1BQ2QKB/4Nr2/q1B1Q1q1/2BrRn1b/1QQb4 w - - 0 1 legal: proof: e4 b5 a4 d5 exd5 g5 axb5 c5 h4 Be6 hxg5 Bc8 b4 Nc6 b6 Bh6 b5 Nb4 Nc3 Na6 Na2 Bf8 Nb4 cxb4 Ra3 Nb8 Re3 Qd6 Re4 Qd8 Re6 fxe6 Ke2 Kf7 Ke3 a5 Kf4 h5 g4 h4 d4 h3 c4 b3 b7 a4 c5 h2 g6+ Kg7 c6 a3 c7 b2 b6 b1B d6 a2 g5 a1Q d5 Qa7 d7 Qa1 d6 Qb2 Bb5 Ra5 Ne2 Rh7 Ng3 Qa1 Ne4 Qa2 Re1 h1B Re2 Ra3 Bd2 Qa1 Bc3+ Nf6 Qc1 Na6 b8Q Ra5 b7 Nc5 Qa7 Rh8 b8Q Na4 Qae3 Qe8 d8B Bd3 d7 Ba6 c8Q Qb2 Bc7 Rh3 d8Q Bf3 Qd5 Nc5 Qf5 Kg8 g7 Qa3 Qbb7 Ra4 Qb6 Kf7 g8B+ Kg7 g6 Rh2 Qcb7 Qb8 Bh7 Bh5 Q7a7 Bc8 Kg5 Rd4 f4 Ng8 Qaa5 Nh6 Qb4 Bc2 Qbb1 Nd3 Qbc5 Bf3 Bg8 Rh4 Bf7 Nf2 Bfe8 Kg8 g7 Rd2 Bh5 Qaa8 Qfe5 Bd3 f5 Qa3 f6 Rf4 Qf5 Bc2 Re1 Bfd1 Re2 Bd3 Qfh3 Kh7 g8B+ Kh8 f7+ Bg7 f8B Be5 Bgf7 Kh7 Bfe8 Kg8 Ba4 Bd6 Bc2 Qbb3 Bb5 Be5 Nd6 Bg6 Qf5 Re4 Qd3 Bh2 Qde3 Rf4 Ne4 Qbb4 Qb6 Qd6 Qbc5 Qd3 Qed4 Qf3 Qe3 Qg3+
BRBQn3/3rB3/1Rbnr3/r2qb2Q/1B3R1B/3bbK2/2kr1B2/B1B1b3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bd7 f5 Be6 Nh3 Bc8 Nc3 h6 Nf4 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 Kd7 d4 Kd6 h4 c5 b4 e5 f7 a5 g6 g3+ Ke2 g2 g7 g1B f6 a4 b6 e4 b7 c4 b5 e3 h5 a3 b6 a2 h6 c3 h7 c2 Rb1 a1R Bh3 R8a7 Kf3 Na6 b8R e2 b7 Be3 Rf1 Bd7 Rb6+ Bc6 Bc8 e1B Rf2 Be7 f8B Nc5 f7 Nf6 g8B Ne8 Rf1 R7a6 Qe2 R1a4 Qh2 R4a5 Qh5 Ne4 Rf2 Kc7 Rf1 Ba3 Be7 Bd6 f8B Be5 Bf7 Rg8 h8B Rg7 Bb4 Qd6 Be7 Qc5 Bh4 Kd6 Bfe6 Rf7 Bh3 Rd7 Bg2 Ra2 B8f6 R6a5 Bf2 Rb2 B6h4 Rba2 Bb2 c1R Ba1 Rcc2 Bh1 Re2 Bg2 Bf6 Bh1 Rad2 Bg2 Ke7 d6+ Ke6 Bh1 Qg5 d5+ Kf5 Bg2 Bb2 Bh1 Ke5 Bg2 Kd4 Bh1 Rd8 d7 Kd3 d6 Qd5 Bg2 Kc2 Bh1 Nc7 Be7 Be5 Beh4 Rg8 d8B Ne8 d7 Rg7 Bdg5 Re7 d8Q Re6 Bg2 Rd4 Bge7 Red2 Ra8 R4d3 b8B Rd4 Bc7 R4d3 Rab8 Rd4 Kg4 f3 Bcd6 R4d3 Ba3 Rd4 Bdb4 R4d3 Bc1 Rd4 Bfg3 f2 Kf3 R4d3 Rg1 f1B Bf2 Rd4 Bh1 Bd3 Rg4 Qb5 Bg2 Rd7 Rf4 Qd5 Bh1 Nc3+ Re4 Qb5 Bg2 Ba8 Kg4 Qc4 Rf4 Qa2 Bc6 Ne4 Kf3 Qd5 Bb5 Bb7 Ba6 Bc6 Bab7 Bh8 Ba8 Bc3 Ba6 Be5 Bc8 N4d6+
3B1q1Q/Kq1Pppq1/4R2q/1B1qR3/2n3q1/N1k2NQb/R6Q/q1N4B w - - 0 1 legal: proof: c4 a5 e4 h5 f4 d5 b4 axb4 d4 dxc4 d5 g5 Kd2 b5 Ke1 Ra6 e5 Rd6 exd6 g4 Qb3 Rh6 Qd1 Rh7 g3 h4 f5 Rh6 Ne2 Rg6 fxg6 Bg7 Ng1 Bf6 Bd2 h3 Bc1 Bh4 gxh4 g3 Qa4 g2 Kd2 Nd7 Ke1 Ndf6 Qb3 Ne4 Qd1 Ng3 hxg3 Bb7 Qb3 Ba6 Qd1 Bc8 Kf2 Kd7 Ke3 c5 a4 b3 a5 c3 h5 h2 g7 b4 g4 c4 Kd4 b2 Kc5 b3 g5 c2 a6 c3 g6 Qa5+ Bb5+ Kd8 h6 Bh3 h7 Qa3+ Kb6 Qa2 h8Q Qa5+ Ka7 Bc8 d7 Kc7 d8N Kd6 Be3 Ke5 d6 c1Q Nb7 c2 Nc5 Nf6 g8R Bh3 g7 Ng4 d7 Qc3 Na3 b1Q Qd2 b2 Ra2 Qa1 Nb3 b1Q Bb6 Ne3 Bd8 Nc4 Nf3+ Ke4 Qdh6 Kd3 Re1 h1Q Re5 Qb4 Qf4 Kc3 Qh2 Qh6 Nc1 g1Q+ Kb8 Bg4 a7 Bh3 a8B Q4b2 Re6 Qg4 Ka7 Qd1 Ng1 Qd3 Bh1 Qd5 Nf3 Qh7 Re8 Qh6 g8Q+ Qhg7 Re5 Qf8 Qg5 Qb4 Qgf4 Qgg7 Qfg3 Q1b3 Ba5 Qbb1 Rb8 Qb3 Rb6 Qa4 Nd3 c1Q Rbe6 Qch6 Nc1 Qad1 Bd8 Q1d4+ Rb6 Qdg4 Rf6 Qbd6 Rg6 Q6c6 Rge6 Qb7#
3bKn1B/2QQ1N2/k4r1Q/1R1Rbbr1/2B2N1b/2q1n1B1/P2r1NRb/n7 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 d4 d5 cxd5 c5 g4 hxg4 dxc5 Qd6 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kc7 Ke4 g5 Ke5 b5 f4 Kb7 h4 b3 h5 b2 d6 g3 c6+ Ka6 d7 g2 Ke6 g4 Kf7 e5 f6 e4 f5 g3 h6 e3 c7 e2 h7 e1B Qg4 Bg7 Bg5 Nh6+ Kg6 Rf8 f7 Be5 f6 Nf5 h8B Ne3 Nc3 b1N Nh3 g1B Nd1 g2 Bc4 Bh4 Rh2 Na3 Ndf2 Nac2 Rb1 Na1 Nf4 Qe7 d8Q Qb4 Qgd7 Qc3 Rd1 Ra7 Rd5 Rb7 Q8e7 Rb6 Qed6 Rd8 f8Q Rc6 Kf7 Rb6 Qh3 Bf5 c8N Nd7 Qh6 Nf8 Qc7 Rd7+ Ke8 Rg7 f7 Rf6 Rh1 Bh2 Rb1 g1B Nd6 Rg8 Ne2 Rgg6 Bf4 Rg7 Bg3 Rg5 Nd1 Bf2 Nf4 Be1 Nf2 Bd2 Bb3 b4 Rg1 Bc1 Rg2 Ba3 Rb5 Bb2 Bc4 b3 Qg4 Bc1 Qd1 b2 Qd5 b1R Qe6 Ng6 f8R Rb2 Qed7 Rd2 Nf7 Ba3 Rg8 Nf8 Rg7 Be7 Rg6 Rb6 Rd6 Bd8 Rdd5 Rf6
1r4k1/r2R4/rN5b/1Qq1r1BN/2R2Qq1/R1Nb3K/B2P1rQb/2B3qn w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 a5 e4 f5 b6 Kf7 e5 h5 b5 c5 d6 a4 d7 g2 Kf2 f4 b7 c4 b8Q f3 Kg3 f2 b6 a3 b7 c3 Qf3+ Nf6 Ra2 h4+ Kh2 h3 Bb2 c2 Ne2 c1Q Ng3 Ra7 g6+ Kg7 e6 Qc5 Be2 f1R e7 Rf2 Bc1 Nh5 e8Q Qh4 d8B Bf5 Bc4 Bd3 Nc3 Rg8 Ra1 a2 Qb5 Kh8 Qa8 Bh6 b8N Rf8 g7+ Kh7 Re1 g1B+ Kh1 Rg8 Nd7 Rf8 Be7 Rb8 g8R Qhg5 Re4 Qg6 Nf5 g3 Nb6 Qg4 Rg7+ Kh8 Rf7 Kg8 Qac6 h2 Qb7 Rf1 Kg2 h1R Bg5 Bh2 Qf4 Re1 Qd5 Rhf1 Ng7 Re3 Rd4 Re5 Bb3 Rf3 Rc4 Rf1 Qb7 Rf3 Rd7 Rf1 Rb1 a1R Q7c6 R1a6 Ra1 Rf3 Ra3 Rf2+ Kh1 Nf6 Nh5 Ne4 Ba2 Rf3 Kg2 Nf2 Qd4 Nh1 Qb7 Qf5 Qg4 Rf2+ Kh3 g2 Q7c6 g1Q Qg2 Qe4 Q4g3 Qe2 Qf4 Qg4+
QR1K4/2rq1q2/1B1Q2bQ/1bN2nN1/3RB1k1/4Rn1n/bP1n1BNq/6n1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Qd2 a5 Qd3 f4 Qd1 Be7 h4 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 g4 Bh3 Kf8 Bf1 Bg5 hxg5 Ke8 Kd2 Kf7 Kd3 h5 Kc4 d5+ Kc5 f2 c4 g3 e4 d3 b6 f3 e5 d4 e6+ Ke7 b7 a4 g6 Kf6 e7 d2 e8Q Kg5 g7 a3 f6 d3 f7 h4 f8B h3 Nc3 g2 Nce2 h2 Qe3+ Kg4 Nf4 a2 Ngh3 g1N Ng5 Nc6 b8R Qd7 Kb6 Ne5 c5 Nh6 g8Q Rh7 c6 Nf5 Bg2 f1N c7 Bb7 c8N Be4 Rb1 a1Q Bc5 Qa2 Nd6 Qaf7 Nb7 Bd5 Bd4 Ba2 Nc5 Rg7 Qd8 Rh7 Qa4 d1B Qa8 f2 Be4 d2 Ng2 Nef3 Qe7 Be2 Qd6 d1N Bd2 Ba6 Be1 Bb5 Rc1 N1d2 Rc4 f1B Bf2 Bd3 Rb4 Nh3 Re1 h1Q Ra4 Qh2 Qef4+ Kh5 Re3 Nc3 Rb4 Ne2 Rc4 Nh6 Qff6 Nf5 Qh6+ Kg4 Ra4 Neg1 Rb4 Qde6 Ra4 Ne7 Kc7 Nf5+ Kd8 Bdb1 Bc3 B1d3 Ba5 Bc2 Bc7 Bcb1 Rd4 Qee7+ Kc8 Qd7+ Kb7 Qf6 Qa5 Qe8 Qa8 Ne7 Bd5+ Qff4 Kb6 Bg6 Be4 Qff8 Bd8 Nf5 Bc7 Qf6 Kb7 Qc6+ Kc8 Re7 Kd8 Qf7 Ba5 Rc7 Bb6 Qcd7+
QQRbqr2/1r4r1/2NRn3/p5Nb/1n3Nq1/q2n2B1/B1KRQ1P1/1B4k1 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 g5 c4 d5 cxd5 e5 a4 exf4 h4 gxh4 axb5 Bh6 Nf3 Bg7 Ng1 Bf8 e4 Ke7 d4 Kf6 Kd2 Kg5 e5 h5 e6 a5 e7 f5 e8B f3 d6 Kf4 b6 Kg3 c6 Kf2 d5 f4 c7 h3 b7 h2 d7 h4 d6 h3 Kd3 Nf6 Be2 Na6 b8R Rh7 Kd2 Nh5 Kd3 Ng7 Ra3 Be7 Bg6 Qe8 d8Q Ra7 d7 Ne6 Kc2 Rb7 Bc4 Rg7 Nd2 Bf6 Ne2 Nb4+ Kb1 Bh4 Ba2 Be7 Rg1 h1Q Rd3 h2 Rd6 Bh4 Re1 Qg1 Bb2 h1N Be5 Qh2 Kc1 Qh3 Bgb1 Qg4 Qc2 Bg5 Rd1 Bh4 Nb3 Bg5 R1d2 Kf1 Qc4 f2 Nc5 f3 Nf4+ Kg1 Ne4 f1R+ Kb2 Bf6 Qe2 Nf2 Ng5 Nfd3+ Kc3 f2 Ra8 Qeh5 Qh8 Qg6 d8N Qe8 Nc6 Bd7 c8Q Bd8 Ne7 Bc6 Qb8 Be4 Nc6 Bg6 Qa7 Bh5 Rc8 Re1 Qa8 f1Q Qf8 Qff3 Qg8 Rf1 Kb3 Nd5+ Kc2 Rf2 Ng6 Qe3 Bg3 Rf8 Nf4 Qef3 Qf7 Qe3 Qc7 Qef3 Qcb8 Qe3 Bb3 Qc5+ Bc4 Qa3 Bca2 N5b4+
K5Q1/3k4/1b1r1b1R/B3bNNb/2N1P1pQ/BRn1q1Qb/RB4r1/2nn4 w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 d5 axb5 h6 cxd5 h5 Bh3 exf4 gxf5 Ke7 Bg4 hxg4 Qc2 Kd7 Qd1 Ke8 Kf2 g5 b4 c5 d4 a5 e4 f3 Ke3 g3 h4 c4 b6 g2 h5 a4 h6 f2 f6 f1B h7 c3 d6 c2 d5 a3 Kd4 g4 Kc5 a2 b5 Ra4 f7+ Kd7 b7 Ne7 b6 Ra6 Nh3 g1N Bb2 c1B Qf3 Ng6 Nd2 Qe8 Ng5 Bh3 Qg3 Ne5 Nc4 Nbc6 b8Q Be7 f8B Nb4 b7 Bf6 Be7 Rf8 h8N Qd8 Nhf7 Ne2 Nh6 Nc3 Nf5 Nd1 Qa8 Bf4 b8R Ned3+ Kb5 B4e5 Rh2 Bg2 Rh6 Nc1 Kc5 Bh3 Rb5 Nc2 Rb3 Nce3 Qb8 Nc3 Qa8 Ra7 Qb8 Rc7+ Kb6 Rc6+ Ka7 Qb6+ Ka8 Ned1 Qh4 Rf7 Qg3 Ba6 Qg8 Bb5 Bf8 Bd8 Be7 Qe3 Bf8 Kc8 d7+ Kc7 Bc5 Rd6 Bca3 Bdf6 d8B+ Kd7 Bc7 Bd8 Ba5 Bb6 Ne7 Rf2 Nf5 Rf6 d6 Rg2 Qh2 Kc6 d7 Rd6 d8Q Ba4 Qf6 Kd7 Qg3 Bc6+ Kb8 Bd5 Qfh8 Bf7 Ka8 Be8 Re6 Bg6 Qhh4 Bh5 Rh6 N1e2 Rc1 a1B Rc2 Bf6 Bc1 Be5 Ra2 Bf6 Bcb2 Nc1 Rh8 Be5 Rh6 Nb1 Qh7+ Bg7 Qg8 Bf6 Bbc3 Bb2 Be1 B2d4 Bec3 Bde5 Bcb2 Nbc3
1k2BBRb/3Q1r1n/2QbK1r1/1B1Np3/1N2b3/3qR2n/2bn1PRq/N6Q w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 h5 d4 b3 g4 e6 f6 c4 b6+ Kb7 f7 h3 d6 b2 d5 h4 d7 c3 d6 h2 g5 c2 g6 h3 g7 Ne7 g8B Bh6 f8R Ra6 Nf3 Nf5 Bb5 Rh7 Nfd2 Nh4 Bf7 Ng2 Rg8 Nf4 Re1 h1B Be8 h2 Nb3 Nh3 Nc3 b1N Ba3 c1B Re3 Bb2 Qf1 Ka8 b7+ Ka7 Qg2 Nd2 Rg1 Rf7 Na1 Bf8 Qf1 Bf3 R1g2 h1Q Qg1 Bd1 Qh2 Qg1 Qh1 Bc2 Bb4 Ra4 Ba3 Rg4 Bb4 Rg6 Ba3 Na6 b8N Nb4 Na6 Nd5 Bb4 Ka8 Bc5 Nf6 Nb4 Qc7 d8Q Qf1 Qe7 Nh7 Qf6 Qd3 Qf3+ Kb8 Qc6 Qb7 d7 Qc7+ Bd6 Be7 d8Q Bf8 Qdd7 Bb7 Qc5 Be4 Qcc6 Qf1 Kd4 Qd3+ Kc5 Be7 Ncd5 Bf8 Be7 Bh8 Bd6 Bfg7 Bf8 Qh2 Re1 Bf6 Re3 e5 Kd6 Bd8+ Qe6 Be7+ Kd7 Bd6+ Qe7 Rg4 Ke6 Rg3 Qed7 Rg6+
b3k1r1/1qQ1BN2/3q3B/q2rpK2/1Q1R1nP1/n2N1qN1/R2n3b/4R1QB w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 h5 Kd3 c5 Ke4 e6 d4 b3 f4 c4 g4 h3 f6 b2 f5 c3 d6 h4 f7+ Kd7 d5 h2 b6 c2 f6 e5 b7 h3 Nf3 Ne7 Bh6 c1Q Ra2 Qc5 Nc3 b1N Bg2 Ra5 Ne2 Na6 b8Q Nc7 Ne1 Ng6 Nd3 Bb7 Kf5 Nd2 Qa1 Be7 f8Q Nf4 f7 Ba8 Qb4 Bh4 Qg7 Qb5 f8B+ Ke8 Rb1 Bf2 Ng3 h1Q Qad4 h2 Re1 Qa4 Bf3 Nb5 Qc7 Qg2 Be7 h1Q Qdc5 Rg8 d7+ Kf7 d6 Bg1 Qe3 Bh2 Qg1 Na3 Bc6 Rb5 Bf3 Qa5 Bb7 Qe8 d8R Qec6 d7 Qca6 Be4 Qf2 Bb7 Qd5 Bc6 Qdc5 Bh1 Qf3 Rb8 Qac6 d8N+ Ke8 Rb6 Qd4 Nf7 Qb7 Rd6 Qdb6 Rd5 Qd6 Rd4 Rd5
NNk3r1/3pB1R1/4P3/1K2R2q/Qn1Q4/n2QrNRq/n2nb3/b3BB1q w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kd2 f5 Kd3 g5 Kc4 f3 e4 d3 h4 f4 e5 f2 e6 f3 b6 g4 a6 g3 b7 d2 h6 g2 h7 Qa5 h5 Kd8 a7 Ne7 h6 Na6 b8N Ng6 Ba3 Qf5 Rh3 Ne7 Nc3 Qg4+ Kb5 Qg5+ Nd5 Rg8 h8B Qh5 c4 Nf5 h7 Ne3 c5 Bg7 c6 Nc4 Rg3 Nb4 Rc1 Bb7 c7+ Kc8 Qe2 d1Q Qd3 Ba1 Bc3 Qh3 h8Q Ba6+ Kc5 Qe2 Re1 Na2 Bab4 Na3 Qhd4 Qe5 Re3 Qeh5 Re5 Bb5 Be1 Bc4 Ne2 g1Q Kb6 Qgh1 Ng1 Bb5 Be7 Ba6 Q3c3 Be2 Qcd3 Nc2 Kb5 Ncb4 Bg2 f1N Nb6+ Kb7 c8R Ne3 Rc2 Nc4 Bf1 f2 Nf3 Kc7 Rc3 Kb7 Rg7 Kc7 Bg2 f1N Rb3 Nfd2 Bf1 Nc2 Nc6 Raf8 a8Q Ncb4 Nb8 Rf7 Qa4 Na3+ Ka5 Rf4 Na8+ Kc8 Kb6 Re4 Rc3+ Nac4+ Kb5 Re3 Rc2 Nb3 Rh7 Bd1 Rg2 Be2 Rhg7 Nbd2 R2g3 Na3+
N1Rb2kb/p1rN2nR/7Q/2rr2Pr/1B1nKQ2/3RQ3/n2NB2B/6qq w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 f5 d4 Kf7 Kd2 h5 Ke3 c5 b6 h4 d6 f4+ Ke4 h3 b7 f3 b5 f2 d5 h2 d7 c4 b6 c3 g5 c2 d6 Be7 Ba3 c1Q Qd3 Qc3 Nf3 g1N Qe3 g2 Nbd2 Rh5 Bb4 Nh6 Rc1 Qc5 Ne5+ Kg8 Rc3 Nc6 b8Q Nf3 b7 g1B Rd3 Qf8 d8R Nf5 d7 N3d4 Rc8 Ng7 d8Q Qc1 Qb6 Bd8 Nd7 Qfc5 Qbf4 Qd1 Bg2 f1R b8B Qa1 Bd6 Rd1 Bf3 Rb8 Bc7 Rb7 Be5 Rc7 Qa6 Na5 Qh6 Nab3 Qf2 Rc1 Nc4 Rd1 Q4g3 Qa6 Qd6 Rh8 Re3 Qaa5 Kf4 Rh3 Qf1 Rd3 Nd2 Rh4+ Bg4 Qa1 Qfe1 Rc3 Rd3 Ne8 e4 Qc6 Qef2 Rc5 Ke3 Qd5 Be2 Rf4 Qh3 Rf5 Bg3 Qb7 Qf4 Nc1 e5 Na2 Qh5 Qc6 Qh3 Qh6 Ke4 Nf3 Qd4 Be3 Qh5 Qg1 e6 R7c6 e7 Rc7 Nc4 Bd2 Qde3 Bc3 Nd2 Bh8 Qhh4 Ng7 e8N Rfd5 Qh3 R7c6 Nc7 Qh5 Na8 Rc7 Qhh4 Qc1 Rg1 h1R Rg2 Qg1 Rh2 Qh6 Qh5 Qh7+ Qg6 Qh3 Qc6 Qhg2 Rh7 Rh5 Qh6 Q2h1 Bh2 Nd4+
bR4rb/2p1n1Bn/1B1b1RbN/1r1N2qk/2B1QQ1P/7r/4K3/NQr3R1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 h4 Kf7 d4 e5 f4 g5 d6 b3 d7 g3 f6 Kg6 d5 b2 d6 g2 b6 g4 b7 g3 f5+ Kh7 f7 e4 f6 Kg6 Nh3 g1B Na3 b1B Nc2 g2 Ke2 e3 Nf4+ Kh6 Nd5 Nc6 b8R Qe7 d8N Kh5 d7 Bb7 Ra6 Qc5 Rb6 Nce7 Na1 Bg6 Ra6 Bg7 f8B Bh2 f7 g1R Rf6 Rg5 Rg1 Bd6 Bd2 Rg3 Ba5 Rh3 Bb6 Ra5 Qb1 Ba8 Qe4 Rb5 Qb1 Bh6 Bg7 Bhf4 f8Q Bfe5 Nf7 Bd4 Rf3 Nf6 d8Q Nh7 Rf6 Rg8 Qde8 Bb2 Nh6 Bd4 Kd1 e2+ Kd2 e1R Bc4 Rc1 Ke2 Nc8 Qee4 Ne7 Re6 B4e5 Qff4 Bc3 Bf8 Bh8 Rf6 Ra5 Bg7 Rb5 Ne3 Qf5 Nd5 Qg5
1q6/1pB2q1N/n2Q2bB/3n2n1/bn3R1r/QQP1q1k1/NRb2R2/KN3B2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 a5 g4 axb4 e5 f6 exf6 Kf7 Ke2 Ke6 f7 Kd6 Ke1 Kc6 f4 g5 h4 Ra5 f5 Bh6 f6 Rf5 gxf5 g4 Nf3 Qa5 Ng1 Bg5 hxg5 Qd8 Kd2 Kd6 f8R Ke5 a4 Kf4 f7 e5 g6 h5 a5 d5 c3 b3 a6 g3 a7 h4 a8N e4 f6 d3 g7 d4 Ra6 b2 Rd6 h3 Na3 b1N+ Ke1+ e3 Re6 d2+ Ke2 g2 Kd3 e2 Kc2 e1N+ Kb2 h2 Rb6 d3 Nh3+ Kg3 Nc7 g1Q Ka1 Qe3 Ng5 Bf5 Nd5 Ne7 g8Q Na6 Rb2 Rh4 Nh7+ Bg6 Nb4 Nf3 Na2 Nd5 Qb3 d1Q Qg7 d2 Qh6 Qb8 Qf4+ Kf2 Qd6 Ng5 Rg1 h1B Rg4 Bhe4 Rf4+ Ke1 Rf2 Qh5 Rf4 d1B Rff2 Qb6 Bf4 Bec2 Be5 Qe3 Rf4 Nd2 Nb1 Nde4 Qda3 Nec5 Bc7 Nd3 Qba4 Be4 Rg4 Kf2 Rg2+ Kf3 Rf2+ Kg4 Qb5 Ba4 Qbb3 Qe1 Rg8 Bc2 f8Q Qe3 f7 N3b4 Qd6 Qg6 f8B Nf7 Rh8 Ng5 Bh6 Qg7 Rhf8 Bg6 R8f3 Qf7 Rf4+ Kg3
nNQqRbKn/4N2b/B3QR1p/8/3B1RB1/1PQ3pb/2r2r1k/N5nr w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 f4 exf4 h4 g6 g3 g5 hxg5 fxg3 d4 Kd7 Kd2 Kd6 Ke3 c5 Ke4 a5 b6 a4 g6 a3 b7 c4 g7 c3 b3 c2 Nf3 h6 Nc3 a2 Qd3 f6 Ne1 Nc6 b8N Bh3 Bb2 c1N Nc2 Bg2+ Kf5 Be7 Kg6 f5 Kf7 f4 e4 f3 e5+ Kc7 e6 Kd6 Rh4 f2 Rf4 Bf8 e7 Be4 e8Q Nf6 g8B Ne2 Qe3 Ng1 Ba6 Bf5 Rf1 Ne7 Na1 Bh7 Qe1 Ng6 Q8e6+ Kc7 Qc1 Ne8 d6+ Kb6 d5 Kc5 d7 Nc7 Rf6 Kd4 d6 Ra7 Qc2 Na8 Qc1 Rc7 Nd5+ Rc3 Ne7 Nh4 Be2 Ng6 Bg4 Kd3 Qce1 Rc2 Q1e5 Kd2 Bd4 Kd3 Re1 f1B Re4 Bh3 Ref4 Qb6 d8R Qa5 Rc8 Qd8 d7 Kd2 Be3+ Ke1 Qc5 Rf2 Bd4+ Kf1 Qb4 Kg2 Qc3 Qb6 d8Q Kh2 Qdc7 Qd6 Re8 Qd8 Nc2 a1R Qcc8 Rc1 Na1 Nf3 Q3c5 Rh1 Qc3 Ng1 Nf5 Bc5 Ne7 Rc2 Kg7 Ba3 Bf7 Rf8 Bg8 Nh8 Bf7 Qc7 Bg6 Qd7 Bd3 Qd8 Ba6 Bd6 Rg6 Rf5 Rf6 Ba3 Re4 Rff2 Ref4 Bf5 Kg8 Bb4 Nd5 Bf8 Ne7 Bh7+
1NQn4/1n2B2b/r3RnN1/1b1q1N2/2R4R/3Q1rpB/PB1pq1b1/Q2K2k1 w - - 0 1 legal: proof: e4 c5 g4 a5 d4 cxd4 b4 f5 exf5 axb4 c3 b5 Bf4 h5 gxh5 e6 Be3 b3 Qf3 b4 Bc1 b2 Qd3 b3 Qd1 Bb4 cxb4 Rh6 Ne2 Rh7 Ng1 Rh8 f4 Ke7 h4 Kf6 b5 d5 b6 g5 b7 e5 h6 d3 h5 e4 h7 e3 h6 g4 Nh3 d2+ Ke2 d4 Rg1 g3 Nc3 b1B Bb2 Be4 Rc1 Ra6 Nb5 Bg2 Rc4 Nc6 b8N Qd5 Nd6 Bd7 Qc2 d1N Qd3 Nc3+ Ke1 Nb5 Kd1 Nd8 Rh1 Ke7 f6+ Ke6 f5+ Ke5 f7 Nf6 Nf4 Rf8 h8Q Bc6 h7 e2+ Kc1 Bd7 Rh4 Bc6 Qg8 Bd7 h8Q e1Q+ Qd1 Qe2 Qd3 Nb7 Qg4 Na7 Qgg8 Bb5 Qhg7 Re8 f8B Nc6 Be7 Rf8 Q8h8 Rf7 Qc8 Ncd8 Qh8 Bf3 Bh3 Bg2 Ne8 Rf8 Ng7 Rf7 Qd2 Ke4 Ng6+ Kf3 Qd3+ Qe3+ Kd1 Kf2 Rf4+ Kg1 Rh4 Ne4 f6 Qe2+ Kc1 Rf8 f7 Nf6 Nf5 Bc6 Qb1 d3 Qh7 Bb5 Qa1 Qf2 Kd1 d2 Qh5 Qe3 Qf3 Qee6 Qd3 Qee4 Bc3 b2 Be5 b1B Bb2 Re8 f8R Qee6 Rfh8 Rf8 R8h6 Qe3 Qd4 Bbe4 Qd3 Qe2+ Kc2+ Kf2 Nf4 Nd7 Ne3 Bh7 Re6 Rf7 Ng6 Rf3 Nf5 Nf6 Bba3 Qe3 Kd1 Kg1 Bb2 Qe2+
R2N4/4rp2/1B1rbr1R/1n2Q1q1/q1nB3P/Qp1B1k2/rr2N3/NR1Q2K1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 a3 b5 Qc2 h5 gxh5 b3 Nf3 b2 Qd1 b4 Ng1 b3 Bg2 Ra5 Bf1 Bb4 axb4 Ra8 Kf2 Ke7 h4 Kd6 d4 g5 e4 c5 b5 g4 b6 f3 h6 c4 b7 c3 h7 c2 Ne2 g3+ Kg1 g2 Na3 b1R Be3 c1R Nc2 Na6 b8Q+ Nc7 Qa7 Rb2 Ra4 Nb5 Na1 Qd7 e5+ Ke7 e6 Kf6 d6 Kf5 e7 Kg4 e8Q Rc7 Ra6 Nh6 d5 Nf5 Bb6 Ne3 Qe5 Rd8 h8B Nc4 Bf6 Qc6 d7 Rb7 d6 f2+ Kh2 Kf3 Rg1 Re8 d8R Re6 d7 Rd6 Rf8 Rc7 d8N Re7 Rh8 Bd7 Rh6 Be6 Ra2 Qd7 Qa3 Qa7 Qec5 Qa4 Bd4 Ra5 Rh1 g1R Qe5 Rg6 Bh3 f1Q Bf5 Qe1 Bd3 Qd2 Re1 Rf6 Kg1 Red7 Qc2 Raa7 Rb1 Re7 Qd1 Qg5+ Kh1 Ne3 Qb4 Qa5 Qbc5 Qb4 Ra6 Nc4 Ra4 Rab7 Ra8 Ra7 Kh2 Raa2 Kh1 Qc1 Kg1 Qa4 Qa3 Qg5+
k5B1/2q1Nb1Q/B1qQ1n2/1p1rp1K1/B1n1Q1R1/1PnR4/N1RN2b1/6nq w - - 0 1 legal: proof: e4 f5 d3 fxe4 g3 h6 Bd2 e6 Bg5 Be7 Be3 Bh4 gxh4 Ke7 Bg5+ Ke8 a4 hxg5 a5 c5 d4 b5 dxc5 a6 Bh3 Ra7 Bg2 Rb7 Bf1 Rb6 axb6 a5 Kd2 d5 Ke3 Kd7 c4 Kc6 f4 Kb7 h5 g6 h4 g4 h6 g3 h5 g2 f5 g5 c6+ Ka8 c7 a4 h7 g4 Kf4 a3 h6 g3 f6 e5+ Kg5 d4 b7+ Ka7 c5 a2 c6 e3 Nc3 e2 Nf3 e1Q Rh3 g1N Bd3 g2 Nd2 Nd7 b8Q+ Ka6 Rc1 a1Q Qc2 Nf8 Na2 Bb7 c8B Qb1 c7 Ne2 Be6 g1N c8B Qd1 Qd6+ Ka7 Qcc6 Nc3 Bc2 d3 Qe4 Qa5 f7 Nf6 Ba4 Qf3 b3 N8d7 f8R Qc7 Rc2 Nb6 Rg8 Nc4 Rg6 Rd8 h8N Bc6 h7 Ka8 Bg8 Qc1 Rg7 Qh1 Ng6 Rd7 h8Q Rd8 Qb4 Rd5 Ba6 Be8 Qd6 Bf7 Ne7 Qc6 Re3 Qc7 Nb1 d2 Rd3 d1B+ Nd2 Bf3 Qhh7 Qc6 Kf5 Bg2 Rg4 Qa3 Kg5 Qac5 Nc1 Q5b6 Na2 Qbc7
3rRb2/6qq/1N2npk1/2B2Rpr/1RrQ2Q1/1Q1BN3/3N2Pq/B3rbK1 w - - 0 1 legal: proof: b4 a5 h4 g5 a4 e5 c4 d5 cxd5 Nc6 f4 Nce7 h5 Ng6 hxg6 b5 axb5 axb4 Rh3 exf4 Rh4 Ke7 Rh1 Ke8 Kf2 h5 d4 c5 e4 f6 d6 b3 e5 b2 e6 h4 b6 f3 g7 c4 b7 h3 b8N c3 d7+ Ke7 d5 c2 Bd3 h2 Ne2 Ra7 Nd2 b1Q Nc3 Qa5 d8B+ Ke8 d6 Rh7 e7 Kf7 e8R Ba6 d7 Rh5 Nd5 Ra8 Ra4 Qc7 Ne3 Nh6 Be7 Nf5 d8Q Kg6 Rf1 h1Q Bc5 Qhh2 g8Q+ Qg7 Bb2 c1R Qgb3 Rc4 Qd4 Bb5 Nd7 Rd8 Ba1 Qc2 Ke1 f2+ Ke2 Qb1 Nb6 Ba6 Rb4 Bb5 Rg1 f1R Qg4 Re1+ Kf2 Ba6 Rf1 Bb5 Ne4 Nd4 Qd2 Qe5 Kg1 Ne6 Qf2 Qa2 Qfb2 Qaa7 Qd4 Qh7 Qh4 Qag7 Qg4 Re2 Rf5 Re1+ Kf2 Qh2 Nd2 Rc3 Bc2 Bf1 Bd3 Qf4+ Kg1 Rc4 Qb1 Qd6 Qb3 Qh2+
1r3Nr1/r1Bb1Qn1/1Rr3rP/1B3p1R/N2K4/2N1Qr1p/4B1kq/bQR5 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 h4 d5 cxd5 g5 a4 h5 axb5 Nd7 Rh2 Ndf6 Rh3 gxh4 Rh1 h3 Ra3 h4 Ra1 Nh5 gxh5 Qf6 Rh2 Qe7 Rh1 Qd8 Kf2 Kd7 b4 Kd6 d4 f5 e4 a5 e5+ Ke7 h6 c5 b6 h2 d6+ Ke6 b5 Kd5 d7 Ke4 d5 a4 d6 c4 b7 f3 b8N c3 e6 a3 b6 c2 e7 a2 e8B Ra3 b7 Rc3 Bf4 c1R Ne2 Qc7 d8Q Rc6 d7 Rg6 Qg5 Nf6 d8Q Bg7 Nd7 Rc6 b8R Nh5 Rb6 Rg8 Nf8 Bd7 Qde7+ Be5 Bg3 Ng7 Qf7 Bc3 Qgc1 Qb8 Bc7 h3 Rg1 h1R Rg5 Be5 Rh5 Rhg1 Qc5 R1g5 Nec3+ Kf4 Ke1 Kg3 Kd2 f2 Be2 f1R Kd3 Kg2 Qe3 Rf3 Na4 Rg4 Nbc3 Rb4 Rc1 a1R Qdb3 Bf6 Qb1 Ra2 Nd1 Ba1 Ndc3 Rbb2 Kd4 Rb3 Bd8 Qh2 Bc7 Rb5 Nb2 Ra7 Nba4 Rcf6 Rd6 Rb8 Rb6 Bc8 Bc6 Bd7 Bcb5 Rc6
1b6/P3NQ1n/R2B1p2/5n2/bbpb4/1b1qN1Bk/K1Q2qb1/QR1R1N1B w - - 0 1 illegal: No possible last move
Q1RQr2b/1B4p1/r7/1bbR2b1/1r1NkNK1/2B3P1/Qp4bB/Nr2b2R w - - 0 1 illegal: Other
Rbr5/1BRK1q2/qBrBP3/1R1p1q2/pNb5/1bkp1n2/3NQ3/1Q2Q2N w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 g5 Nb1 f5 gxf5 Nc6 h3 Ne5 h4 g4 Nc3 Nf7 Nb1 Ng5 hxg5 Qe7 Ra2 Qf6 Ra1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 b4 h5 g6 a5 b6 f3 b7 g3 b8N g2 g7 h4 f6 f2 f7 h3 b5 h2 b6 Rh6 b7 Rh4 Ne2 g1Q Bg2 f1Q Qe1 Qf3 Nc6 Qa7 b8Q Qf1 Nb4 Qa6 Be3 Rf4 Bb6 Rg4 Nd2+ Kb5 Ng3 Nh6 g8Q Be7 f8B Rg6 Qa2 Qe8 c3 Bf6+ Kd6 Qf7 e5 Ng4 Bb7 Qf5 Kc7 Bg5 Bd6 Bf4 Rg1 Rf6 Nh1 a4 Rb1 Bg3 Rf1 Re6 Rf4 Rh6 Rc4 Rf6 Kd8 Re6 Rc7 Rh6 Bf8 Rc6 e6 Ne5 Bd6 Nf3 Qc2 Be5 Qcd1 Bg3 Qde2 Bf4 Be3 Be5 c4+ Ka5 c5 Kb5 Ne4 Kc4 Nd2+ Kc3 Be7 Rb6 c6 d5 Bd6 Bd7 Ng3 h1B Rb2 Bg2 Nh1 Bh3 Bg1 Bg4 Bgc5 Rb5 Bb6 Rc5 Rc8 Be8 c7 Bb5 Rb1 Rc6 Rb2 Q7f6+ Kd7 Bc4 Re8 Qf8 c8R Bh2 Rc7 Be5 Qd8 Rc8 Qb1 Qg8 Qh4 Bh2 Qhe1 Qgg6 Nc2 Qgh5 Rb5 Qhf7+ Re7 Be5 Nb4 Ng1 Qg2 Q7h7 Ba8 Bh8 Ra7 Rb8 Bdc7 Bf6 Bb7 Rc8 Ra8 Bd1 Qge2 Nf3 Rf7 Bg7 Ke7 Bdb3 Bf4 Be5 Rg7 Bb8 Bd6 R8c7+ Kd8 Qhg6 Rd7 Qg8+ Ke7 Rc8 Rc7 Qgg6 Kd7 Qgf7+
3n1R1b/2BnQ2p/q4p2/1BBb1q1n/4pr1k/2R2Q1N/4PR1n/N1QN2K1 w - - 0 1 legal: proof: c4 a5 a4 b5 axb5 g5 f4 d5 cxd5 gxf4 h4 Qd6 g4 Qb4 g5 Qd6 b4 axb4 h5 Qd8 Rh2 Ra6 Rh1 Rg6 hxg6 Bh3 Ra5 Bg4 Ra1 Bc8 Kf2 c5 d4 e5 b6 Ke7 g7 e4 b7 c4 d6+ Ke6 d7 Kf5 d5 Kg4 d6 b3 g6 f3 Ba3 b2 Rh3 f6 Nc3 b1N Bc5 Ne7 g8Q Bg7 Qc1 Qa5 d8Q Qa3 d7 Qa6 Nd1 c3 Qb3 Nec6 Qe7 c2 d8N Nd2 Ne6 Nd7 b8B Bb7 Bc7 Nd8 Nd4 Rg8 Rb1 Bh8 g7 Bd5 Qc3 Rf8 Nb3 Rg8 Na1 Kg5 Rg3+ Kh4 Bh3 Nf1 Rg2 Ng3 Rb3 Nh5 Be6 Qa4 Nh3 Qa6 Kf1 f2 Qf3 Nb7 Rh2 Nd8 Kg2 f1N Kg1 Qa5 Bg4 Qa6 Rf2 Nh2 Be6 Nf1 Rc3 Nh2 Qb1 c1Q Bg4 Qd2 Qc1 Qf4 Bf5 Nb8 Bd7 Qf5 Ba4 Nd7 Bb5 Rf8 g8R Re8 Rg6 Rg8 Rg3 Rg4 Rgg2 Rf4 Rg8 Bg7 Rf8 Bh8
K1Q1Q1n1/2R1R1Pq/3pqQ2/k2bR2q/3B1n2/B3p3/3pNNB1/1r3qNq w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 f4 c5 h4 cxd4 e4 fxe4 f5 Ra7 Ne2 Bh6 Ng1 Rc7 f6 Rc5 Qe2 Re5 Qd1 Rf5 gxf5 g4 Nd2 Be3 Nb1 Bg5 hxg5 Qc7 Ra4 Qb6 Ra1 Qd8 Ke2 h5 c4 e5 b4 d6 c5 Kd7 g6 Kc7 b6+ Kb7 c6+ Ka6 g7 e3 Kd3 a4 Kc4 e2 Kd5 g3 c7 d3 b7 e1Q f7 a3 f8Q a2 f6 h4 f7 g2 b5+ Ka5 b6 e4 Qg4 e3 Qe8 d2 f8Q h3 Nc3 h2 Qf6 Na6 Kc6 Qd1 b8B Rh6 b7 Qe7 Ne4 Rh5 Ba7 Rg5 b8N Qd8 Nf2 Rb5 Bd4 Nc5 Ba3 Be6 c8R Qe7 Rc7 Nd3 Rb1 Bf7 Qgc8 a1Q Rc1 Qe5 Re7 Qb1 Rc5 Qe6 Re5 Nf4 Kc7 Rd5 Kc6 Qg6 Kb7 Qdh5 Ka8 Rb5 Nc6+ Ka4 Ne2 g1Q Bg2 Qf1 Ng1 Qc2 Bdc5 Rb2 Nd4+ Ka5 Nde2 Rb5 Bd4 Qd3 Rc5 Qdh7 Rcc7 Rb1 Nf3 Qc1 Rf1 h1Q Nfg1 Qcc2 Rc1 Qd1 R1c2 Qf1 R2c6 Qee4 Re5+ Bd5 Rce7 Rb7 Rcc7 Rb1+ Qc6 Qef5 Qe8 Qe6 Qc8 Rb7 Q6e8 Rb1+
r5nN/2Q2Qbk/2b1BbpN/r1Rp4/PRB5/B4p2/1b5K/N1bRQ1r1 w - - 0 1 illegal: No proof kernel
R7/4Q2b/pp1N1pRB/n1B2Nb1/3r1rkB/4n2b/Pr1R1Q1p/1QK3N1 w - - 0 1 legal: proof: c4 d5 cxd5 c5 g4 g5 b4 e5 bxc5 e4 f4 gxf4 h4 Be7 h5 Qc7 g5 Qb6 Bg2 Bf8 Bf3 Qg6 hxg6 exf3 d4 Kd7 Kd2 h5 e4 a6 d6 Ke6 d7 f2 d8B f1B g7 f3 e5 Kf5 c6 f2 c7 h4 e6 b6 d5 h3 e7 h2 e8Q Bd6 g6 Nf6 g8R Bb7 c8N Rh7 g7 Nbd7 Qe7 Rh4 Na3 Ra7 Nc2 Bg2 Nd4+ Kg5 Nf5 Bb8 d6 Nc5 d7 f1R Ncd6 Bbe4 Qb3 Rh5 Qb1 Bh3 Ba3 Rf4 Kc1 Nb7 Bc5 Rhh4 Rh8 Rf2 g8Q+ Kf4 Qg6 Ng4 Qgf6 Ne3 Qfb2 Rg2 Qf2+ Kg4 Bc7 Na5 Rc8 Rb7 d8B Ba7 Ra8 Bb8 Nc4 Bc2 Bf4 Rd7 Bh6 Bf4 Ncd6 Be4 Ne2 Bg5 Rd1 Bd3 Ng1 Bc2 Rd2 Be4 Nd4 Bh7 N4f5 Kh5 Qbe4 Rf4 Rb1 Kg4 Rb4 Ra7 Qb1 Rd7 Re4 Kh5 Re6 Kg4 Nc8 Rd3 Rg6 Rdd4 Ncd6 Nd5 Qfe1 Re2 Qf2 Ne3 Rd3 Rb2 Rd1 Bf1 Rd2 Bh3 Qf6 Bf1 Qe6 Bh3 Rf6 Bh4 Rg6+ Kh5 Bdg5 f6 Qd7 Kg4 Qe7 Rf3 Bf4+ Bg5 Bg3 Rff4 Bh4 Rb5 Rgg8 Rbb4 Rg6 Rb2
2Qrq1Rr/qrn1n1N1/BN3B1k/K3b2n/BNr3P1/1Q4R1/r4Q2/R3qb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 Kg7 g4 h5 d6 a4 d5 c4 b6 h3 e5 h4 e6 h2 b5 h3 Kb4 f3 e7 a3 e8B f2 b7 f4 b6 c3 Qd3 a2 Qe2 f3 Ba4 c2 Na3 Ne7 d7 Qe8 d8R Na6+ Ka5 Rg8 b8N Nc7+ Na6 Bd7 b7 Bb5 Bf4 c1R b8Q Rc4 Be5+ Kh6 d6 Bg7 Bd4 Be5 d7 Ra7 Bb2 Rb7 Nb4 Rf8 Qc2 Ba6 Bd3 f1Q Qf2 Qe1 Ne2 Rh8 Rf1 h1R Nf4 h2 Nh5 Rg1 Rc8 h1N d8Q Ng3 Ng7 Rg2 Rg1 Nh5 Qd7 Rh2 Rg3 Bb5 Rd8 Rg2 Qdc8 Ba6 Qc5 f2 Qd4 f1R Qf2 Bf4 Bf6 Be5 Qd4 Rf4 Qf2 Rfd4 Be2 Qf8 Re8 Rd8 Bf1 Qf7 Rg8 Qe8 Be2 Rb6 Qbb7 Rh2 Qbf3 Rb7 Qb3 Rg2 Nb1 Rh2 Nc3 Rg2 Ncd5 Rh2 Rc1 a1Q Bd3 Qd4 Ra1 Qa7 Nb6 Rg2 Qff5 Rd2 Qf2 Ra2 Be4 Rb8 Bb7 Bb5+ Ba6 Rb7 Qc3 Rcd4 Qcf3 Bf1 Qb3 Rc4
bN1n3q/8/1nNr3B/bQB1R1n1/n1K2P1n/QRN5/b1Bkr1rQ/2r3R1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 Kd6 d4 a5 f4 h5 g4 c5 b6 e5 g5 e3 Kd3 c4+ Kc3 e2 b5 e1N g6 a4 g7 e4 b7 e3 b6 a3 Ne2 a2 Ng1 e2 Rh2 h3 Bd2 h4 Qc2 Rh6 Bc1 Be6 Nd2 Ng2 Ngf3 e1N Qb1 Nf6 g8R Nc6 b8N Nd7 b7 Nb6 Rh1 h2 Qb2 h3 Rg1 h1B Rg3 h2 Ne5 Nh4 Bd3 Nef3 Nb1 Ng5 Be3 Bg7 Qb3 Qh8 Bc2 Nd8 Nec6 Rf6 Kb4 c3 Qa3 Ra6 Bf2 Rg6 Re1 Bf3 Re5 h1R Be3 Re1 Rg1 Na4 Bf2 Re2 Kc4+ Kc7 Be3 Kb6 Rg3 Bf8 Bg1 Bb4 Be3 Bd7 d6 Ba5 Bg1 Bh3 d7 Bh1 Rge3 Be6+ d5 Bg8 Kd3 Kb5 d6+ Bhd5 Rh3 Nb6 Bc5 Nge6 Rf3 Rgg2 Rh3 Ng5 Kd4 Ndf7 d8B Be4 Be7 Nd8 d7 Bgd5 Bf8 Bf3 Bf5 c2 Bh6 c1R Bc2 Bc4 Nd2 Bfd5 Ne4 Bb3 Rb1 a1N Rh1 Qf6 Rg1 Qh8 Nb4 Ba2 Rb3 Nc8 Kd3 Rd6 Kd4 Nb6 Kd3 Nde6 d8Q Bc6+ Kc3 Bd5 Qc8 Nd8 Qh3 Bc6 Qh2 Bd5 Kb2 Kc4 Nc3 Bf3 Nd7 Be4 b8Q Bb7 Nc6 Ba8 Rb5 Nb3 Qb7 Nd2 Rb3 Nb1 Ndb8 Nd2 Bd1 Kd3 Qd7 Nde4+ Bc2+ Kd2 Qb7 Nf6 Qa6 Nfd7 Qb5 Bb1 Rb4 Na4+ Kb3 Ref2 Kc4 Re2 Rb2 Ba2+ Rb3 Ndb6+
n1b1nK2/4rNqR/BBk5/2B4b/2b1P3/4bR1r/QNrNnQ2/3n1QRb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 d4 a5 g4 h5 b4 h3 b6 h2 b5 c4 g5 h4 g6 a4 b7 a3 g7 c3 b6 h3 d6 a2 d5 c2 Nc3 Qc7 Qe1 Ra7 Na4 Na6 b8Q Nf6 g8Q Bh6 b7 Ne8 Ba3 c1N Bc5 Ne2 Qf2 Bg5 Re1 a1R Nb2 Ra2 Qa8 Rh6 b8R Qb7 Qg6 Nac7 Qf6 Rh7 Rc1 Re7 Rc3 R7a3 Qa5 Qa7 Rb7 Rb3 Rd3 Rc3 Qa6 Raa3 Qc4 Rc2 Qa2 Rac3 Rb5 Na8 Rb7+ Kd8 d7 Ra3 Rbb3 Kc7 d6+ Kc6 d8B Qc7 Qf8 Bh6 d7 Qe5 Bdb6 Qg7 Rd1 Bg5 Qe1 Bh6 Kf2 f3 Rbd3 f4 d8N+ Kb5 Nf7 Kc6 Rc3 Rb3 Rd5 Ra3 Rh5 Bg5 Rh7 Rb3 Qd2 Ra3 Ke1 f2+ Kd1 Rb3 Nf3 Bh6 Rg1 h1N Qe1 h2 Nd2 f3 Rd3 Be3 Rc3 Nf4 Ba6 f1B Qf2 Bc4 Qf1 f2 Rd3 Ng6 Ke2 Nf4+ Kf3 Ne2 Rc3 Bf5 Rd3 Bg6 Kg4 Bh5+ Kf5 Rbc3 Qe1 f1B Qf2 Rb3 Rc3 Bg2 Qf1 Nf2 Rd3 h1B Rc3 Bd4 Rf3 Nd1 Qf2 Bg6+ Kg5 Bh3 Qf1 Bc8 Qf2 Qe5+ Kh6 Bh5 Qf1 Nf6 Kg7 Be3 Qg8 Rbc3 Kf8 Ne8 Qgg2 Bf4 Rf2 Rh3 Rf3 Be3 Qgf2 Qg7+
BN1n2bn/2rP1n2/QK1b1B1Q/2Rn2Q1/3q2R1/1nrrN1b1/1B2R3/bkN5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 g4 Kf6 d4 h5 b4 c5 e4 a5 b6 a4 d6 f3 Ke3 f2 b7 h3 d7 h2 d5 Ke5 b5 f5 g5 a3 g6 a2 d6 h4 b6 c4 g7 c3 Qh5 c2 Qe2 Ra7 Na3 h3 Bg2 Nc6 b8N Nh6 g8Q Rc7 b7 f1N+ Kd3 f4 Kc4 f3 Kb5 Kd4 e5 Kc3 e6 f2 e7 Ne3 e8R f1N Nc4 Nd2 Qg5 Nb3 Na6 Qf6 d8B Qd4 Bf6 Be6 d7 Bg8 Qg3 Nd8 Be4 Bd6 Re7 Nhf7 Ba3 c1B Rb1 a1B Qg6 Bd2 Qg5 Be1 Re5 Bh4 Rb2 Rh5 Qh6 Nh8 Rc5 Rg5 Bc6 Rg3 Kb6 Rf3 Qg2 Kd3 Ne2 Nd5+ Kb5 Be1 Rg1 h1R b8Q h2 Qgg5 Re3 Rg4 Beg3 Bb7 Rd1 Qa8 h1N Nb8 Nf2 Nc1+ Kc3 Qa7 Nd3 Qa6 Ne5 Ba8 Nef7 Re2 Rd2 Bb2+ Kc2 Re1 Kb1 Re2 Rc3 Ne3 Nf4 Kb6 Rd1 Qh1 Rdd3 Qhh6 Nd5+
3K1B2/Nbn5/1Q1nr1RN/n2Q1Q1R/3rr1N1/rqbB1qk1/RB1P4/4n1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 h5 e4+ f3 d6 a5 d7 c5 g3 f5 Ke6 a4 e5 c4 b6 a3 b7 c3 b5 a2 b6 c2 Bb5 h3 Qf1 h2 Kf7 f2 e6 f4 e7 f3 e8Q h4 Na3 h3 Qee2 Bg7 Qe3 Na6 b8Q Bb7 Qc8 Bc3 Bd3 Ne7 Qcc5 Nc7 Nb5 Ra3 Bb2 c1N Qd5 Nf5 Na7 Qb8 d8R Re8 Rd6 Nb3 Qec5 Re4 Rg6+ Kh5 g4+ Kh4 g5 Kg3 Qb1 f1R Qa5 f2 Nf3 Rd4 Ne5 Rg1 Ng4 Nd6+ Ke7 f1Q Qf5 Qd1 Qad5 Qf3 Kd7 Na5 Ke7 Ba8 b7 Qg8 b8B Bb7 Kd7 Qe6+ Kd8 Qf7 Qb5 Qb3 Qb6 Re1 Qd5 Ree4 Qf1 Qe3 Qff5 Qf3 Rh6 Re6 g6 Ree4 g7 Re6 Rhe1 h1R g8N h2 Re5 Re1 Rg6 h1R N8h6 Reg1 Qf8 Rh2 Rh5 Rhe2 Qff5 R2e4 Rc1 a1N Rd1 Nc2 Ra1 Ne1 Ra2 Na8 Bc7 R4e5 Bb8 Ne4 Bd6 Nc7 Be7 Nd6 Bf8 Ree4
N2b4/1rR3q1/2rn1Pk1/1BRbb2R/Nn1rbBq1/3B1Q1K/r2nQ1N1/1Q6 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 c5 f4 e5 Kf2 a5 Kg2 h5 b4 e3 g5 e2 f5 e1R b6 a4 b5 a3 b7 a2 b6 e4 d6 e3 d5 h3+ Kg3 e2 d7 h4+ Kg4 c4 d6 c3 Bf4 h2 Qc2 h3 Nf3 Nc6 b8N Be7 b7 Nb4 Nh4 Rd1 Na6 e1N b8Q Nf3 Ng2 Rd4 Bd3 Nd2 Nc7 Rh7 g6+ Kf6 g7 Nh6+ Kh4 Bb7 g8B Be4 Bgc4 Nf7+ Kg4 Qf8 Bb5 Bd8 Kg3 Ra6 Na8 Rc6 Kg4 Kg7 f6+ Kg6 Qb2 c2 Nc3 c1B Na4 Qg7 Qc2 Ba3 Rac1 a1R Qb7 Bb2 Qb1 Ra3 Rc5 Ra2 Rhc1 h1B R1c2 Be7 d8Q h2 Qe8 Bd8 d7 Bc3 Qe7 Nd6 Rh5 Ba1 Rcc5 Bb2 Kh3 Bc3 Ne3 Bf3 Ng2 h1Q+ Bh2 Qc1 Bf4 Bd1 Qe6 Bb3 Qe5 Bd5 Qe6 Be7 d8R Qg1 Rc8 Bd8 Rc7 Bb2 Ne1 Qg5 Qe5 Rc4 Qe6 Be5 Ng2 Rd4 Qg4 Qf8 Qa6 Rf7 Qe2 Qg7 Qc8 Re7 Qcg4 Rd7 Qgf3 Re7 Rc8 Rb7 Rc7 Qg4+
2Qn2QB/bn2R1r1/N1pq2Nn/1N1B3b/rR1Kb3/1P6/k3q1B1/2r1q1RQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kd6 g4 Kc5 d4+ Kb4 g5 h5 d6 f5 d7 a5 d5 a4 d6 a3 g6 f3 Ke3 f4+ Kd3 a2 e5 h3 g7 h2 b6 h4 e6 f2 e7 h3 e8N f3 b7 Ra4 Bf4 Nh6 g8B Rh7 Qc1 Nc6 Bg2 f1Q+ Ne2 f2 Be5 Qe1 Rg1 h1R Bh8 f1Q B8d5 h2 Na3 Rg7 b8R+ Bb7 Rb1 a1N Nb5 Nb3 Ra1 Qdf6 d8Q Nba5 d7 Qd6 Qc8 Nd8 b3 c6 Ra2 Ba6 Nc7 Nab7 Kd4 Be7 Nf4 Qfe2 Ng6 Bg5 Na7 Bd3 Rb2 Be4 Nab5 Bf3 Rc2 Bh5 Rc3 Bh4 Re3 Bg5 Re7 Be3+ Ke4 Ndf7 d8Q Bd4+ Qe3 Ba7 Qf8 Nfd8 Qg8 Na5 Rb6 Nab7 Kd4 Rh7 Qd3 Rg7 Nc3+ Ka3+ Qc4 Nc5 Rb4 Ncb7+ Qc5 Kb2 N3b5 Ka2 Na6 Qeg3 Rb1 Rc1 Qb6 h1B Qc5 Rc3 Rg1 Qge1 Qb6 Rc5 Qbc7 Qd7 Qh2 Qd6 Bf1 Bg2 Qh1 Be4 Bg2 Rc1+
QN1r1BK1/1bqnNB2/2QQR3/1R1B3n/1rR3N1/nbp5/1bP1br2/4b1k1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 Kf7 Kc3 Kg6 Kc4 Kf5 Kd5 h5 b4 c5 f4 a5 g3 a4 b6 h3 b7 a3 e6 a2 e7 h2 e8B c4 b5 h4 b6 e3 Qd4 Kg4 Bg2 h3 Bf7 e2 Ba3 e1B Qe4 Rh4 Nc3 Bg7 Nf3 Qc7 Bf8 d6 Rf1 Nd7 Ke6 h1R b8N h2 b7 Ngf6 Qc6 d5 f5 d4 Nd5 d3 Ne7 Nh5 f6 d2 Rf2 d1B Re2 Rf1 Ne5+ Kg5 g4 Kf4 g5 Kg3 g6 h1B Re3+ Kf2 Ng4+ Kg1 Bd5 Be2 Re5 Bh8 g7 Rf2 g8Q Be4 Rd1 a1N Rd4 Nb3 Qg6 Nd2 Qh6 Bg7 Qh8 c3 Rc4 Nb1 Qh6 Bh7 Ree4 Na3 Qf4 Qa5 Qfd6 Bg8 Na6 Rh1 b8Q Bf3 Rcd4 Nb1 Bb3 Bh6 Bg7 Bh7 Bg8 Bb7 Kf7 Kg2 Re5 Na3 Rb5 Bc1 Qa7 Rc8 Nb8 Rd8 Qa8 Qc7 Re4 Bed2 Ree5 Bd3 Re6 Re2 Bd5 Bc4 Bh6 Re4 Bg7 Bb2 Bh6 Rc1 Bg7 Bfe2 Bh6 Ng3 Kg7 Rd1 f7 Rf1 f8R Kg1 Rf4 Bb3 Bf7 Rb4 Rc4 Rf2 Kh7 Be1 Bf8 Nh5 Kh8 Nc5 Kg8 Nd7
nr4NR/1k1pQ2Q/1NbBbKBn/8/2NbP3/1Qb3RR/1b3Bq1/1r2n2r w - - 0 1 illegal: No possible last move, all moves rejected
B1q3bQ/k2n3N/qb1Kq1q1/R1r2Q1P/2pN4/N1rQR3/3B1qn1/Bb4R1 w - - 0 1 illegal: No possible last move, all moves rejected
q6b/2Nq1kB1/6Nr/r3Bbrp/1r4Rr/2R1PR2/KNn1BQ2/2QqQ2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 h5 b4 a5 d4 f5 Kd2 c5 Kc2 f3 Kb3 f4 g5 h3 g6 h2 b6 f2 b7 f3 b5 Bh3 e3 Rh6 b6 Ra7 g7 Bd7 d6 Nf6 g8R Ne4 d5 Ng3 Bb2 Kf7 Ra3 Bf5 d7 Nc6 b8N Ne5 d6 Bg7 b7 Nc4 Nc3 Bh8 Na6 Qc7 Nh3 a4+ Ka2 Qc8 d8Q Qa8 b8B Rb7 Rb3 a3 Ka1 a2 d7 Rbb6 Bd3 f1R Qc7 f2 Na4 Rg1 Nf4 f1Q Qb1 Qf2 Qe1 Qd2 Qc6 Rg2 d8Q Rb4 Rf1 h1R Rf3 Rh4 Bd6 Rg1 Nc7 Nh1 Rgg3 Rg2 Bg7 Rg1 Nb2 Rg2 Rh3 Rg5 Bf1 Qd5 Bde5 Qe6 Qdd2 Qd7 Nce6 Na3 Qde2 c4 Ng6 Nb5 Rhg3 c3 Na4 c2 Q2f2 Na3 Be2 Nb1 Nb2 c1Q Nc7 Qcd1 Qc1 Qda4 Nc4 Qad7 Kb2 a1R Rg4 Rba4 Rd3 Ra5 Rb3 Na3 Rc3 Rb1+ Ka2 Rb4 Nb2 Nc2+
N1b2q2/1k2PNq1/1qqR3B/BQ1Q2q1/1R4pK/1BR3r1/2Q3bn/rNb1n3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 g5 e4 c5 h4 Kc7 b4 a5 e5 f5 e6 f3 Kg3 f2 b6+ Kb7 h5 c4 h6 a4 h7 a3 e7 c3 b5 a2 d6 c2 d7 Ra5 d5 Na6 d6 Nf6 Rh6 Nb4 Bc4 f1B Nf3 Ra6 Nd4 Bg2 Bb3 Nd3 Ne6 Ne1 Nc7 Rg8 h8N Ra8 Be3 c1Q Nf7 Qc6 Qc2 Bg7 Rh3 Bh6 Bd2 Qf8 d8Q Ra7 d7 f4+ Kf2 f3 Kg3 f2 Na8 f1Q Bc1 Kb8 b7 Qg1 Qa5 Qgc5 d8B Q5b6 Qad2 Ra5 Qd5 Ka7 b8R Rg7 Nd2 Rg8 Rb1 a1Q Rb2 Ra3 Nb1 Ra6 Ra2 Qb2 Ra4 Qe5+ Rf4 Ra1 Bc7 Qf5 Rd4 Qg6 Be3 Qgg7 Bd2 Bf5 Rd8 Bc8 Rd6 Kb7 Bf4 Nd7 Be3 Ne5 Rb4 N5f3 Bd2 Nh2 Bd8 Qbd4 Ba5 Qb6 Nc7 Rh8 Ba4 Kb8 Qdc5 Bf3 Q5c4 Qbb7 Kf2 g3+ Ke3 g2 Kf2 g4 Kg3 Bd1 b6 Bf3 Bb3 Qc5 Qe6 Qbc6 b7 Ka7 Na8 g1Q+ Kh4 Bg2 b8Q+ Ka6 Qb5+ Ka7 Rf3 Qf5 Bf4 Qgb6 Kg3 Kb7 Rc3 Qh5 Qed5 Bg5 Be5 Bc1 Bf4 Rh6 Be3 Re6 Bh6 Re3+ Qf3 Qf5 Kh4 Rd3 Qe4 Rg3 Qed5 Qfg5+
q1n1N1b1/B3kr1b/3N3r/2R3qp/1K2PQQQ/3BB1Rq/1b2NRnn/7n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 h5 g4 f3 b4 c4 d6 h3 b6 a4 g5 f2 d7+ Ke7 d5 f4 b5 a3 g6 a2 b7 h2 b6 f3 g7 Ra7 Na3 Nf6 g8R Ng4 Qe2 Ne3 Rg3 Bg7+ Kb4 c3 Nc4 c2 Nd6 Bb2 Ne8 Ng2 Be3 Rh6 Rc1 a1Q Qd1 Qa6 Bd3 f1B Ne2 f2 Rg1 Qc7 d8N h1N Nf7 Qd7 Nfd6 Qh3 Rf3 Nd7 b8B Qa1 b7 Nb6 Rf6 Bf5 Rf8 Ne1 Rg3 Bh7 Rf5 Ng2 Rf4 Ra2 Ba7 Nc8 b8Q Ra3 Nc3 Ra6 Qg4 Be2 Rf8 f1N Rf2 Bd1 Ne2 Nh2 Nc4 Qa2 Qbf4 Raf6 Ncd6 Rf8 Nb5 Rf7 d6+ Kd8 d7 Ke7 Nbd6 Qa6 Ra1 c1Q Ra5 Bb3 Rc5 Qc6 Qff5 Qa8 d8Q+ Kf8 Qdh4 Bd5 Bd4 Qg5 Be3 Ke7 Qgf4 Rf8 Qf4g4 Bdg8 Qff4 Rf7
1B3B2/2R1qQN1/q2r2r1/P1n3K1/1brnkNb1/5rQ1/pbNR1Q1R/1q1B4 w - - 0 1 illegal: No proof kernel
1B1b2k1/bR2nn2/b2p1RN1/B4q1Q/3r1Q1n/1K1N1NQ1/2P1r1R1/1B2rn1q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 a5 b4 h5 g4 e5 f6 h3 f5 e4 b6 e3+ Kd3 e2 Kc4 e1R g5 d6 b5 a4 b7 h4 b6 d3 Nf3 h2 Nbd2 h3 Rg1 h1Q Rg2 a3 Ne4 h2 Nf2 d2 Kb3 a2 Nd3 Ne7 g6+ Kg8 g7 Nbc6 b8B Ne5 b7 Qa5 Bb2 Rh4 Bc3 Qc5 Ba5 Rd4 Rb1 a1B f7+ Kh7 Qc1 d1N Qf4 Ne3 f6 N3f5 Rb2 Nh4 Be2 Nef5 Rb1 Be7 f8R Bd8 f7 Ne7 Bf1 N5c6 Be2 Qg5 Bf1 Ne5 g8Q+ Kh6 Qh8+ Kg6 Qh5+ Kg7 Nb4 Bb2 Bc4 Bc1 Nd3 Be3 Re8 Bg1 f8N Nf7 Ng6 Qf5 Rh8 Bf2 Rh6 Kg8 Qg3 Ra7 Kb4 Rg4 Nh8 Neg6 Bbc7 Qf1 b8Q Ba6 Qb7 Bb6 Qe4 Rb7 Ba2 Ba7+ Ka3 Re2 Rb5 Ne7 Rf6 Rb6 Bb8 h1N Ng6 Qa1 Qe1 Ng3 Qe5 Rge4 Qf4 Rd4 Qf2 Qh1 Rb1 Nf1 Q2g3 Rde4 Rb2 Re1 Bb1 R4e2 Ka2 Rc6 Rb7 Rc4 Kb3 Rd4
QQb2R2/B3br1r/3pP1Bn/kq5n/1NBRKR1b/r2r3n/Q1N3N1/3q4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 Kf3 f5 b4 a5 e4 a4 c4 a3 h4 a2 h6 d3 h7 d6 e5 Kd7 h5 Kc7 b6+ Kb7 h6 Ka6 b7 d2 b5+ Kb6 c5+ Ka5 b6 Qe8 c6 Qd8 c7 Kb4 Rh4 Qe8 Qe2 d1R Na3 Be7 Nh3 Ka5 Nc2 Rd3+ Be3 Qb5 Rd1 Nd7 b8N a1B b7 Ndf6 Na6 Nh5 b8Q Bc3 Nab4 Be1 Rg4 Bh4 Qd2 Rb3 Bc4 Rd3 Bf7 Ra7 e6 Ra8 Bg6 Ra6 Rgg1 Ra7 Rgf1 g4+ Ke2 g3 Kf3 g2 Qa8 Bd7 c8B Ra6 Bb7 Bc8 Bd5 Ra7 Bc4 g1N+ Kg2 Ra6 Ba7 f3+ Kh2 f2 Kg2 Ka4 Nf4 Nh3 Qe2 Ka5 Qd2 Rd4 Kf3 Rd5 Ng2 f4 Qe2 Rd3+ Ke4 f3 Rd2 Rc3 Rd4 Rd3 Rh1 f1Q Qb8 Qd1 Rf1 f2 Qa8 Bf8 Qb8 Ne7 Qa8 Nf5 Qb8 Rg8 h8R Rg7 h7 Bfe7 Rf8 Nh6 h8Q Rf7 Qa8 Rh7 Rf4 Bd7 Qhb8 Bc8 Rh1 f1R Rg1 Rf2 Rf1 Rff3 Rf8 Rf6 Rf4 Rff7 Na3 Ka4 Qa2 Rc6 Bd5 Rcc3 Nac2+ Ra3 Bc4 Ka5
4r3/QQb1b1Pq/2r1bn1b/BR3Bq1/1Q6/1nNN2N1/1B1k2p1/1K2RqRr w - - 0 1 illegal: No proof kernel
k2r4/P1B2n1b/R1R4Q/2K2nr1/1Bp2N1Q/1Nn1brNq/2Br4/nR3Q1n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 e5 Kc4 c5 g4 Kc7 a4 h5 f4 b3 d4 e4 f6 b2 a5 e3 f7 h3 a6 h4 a7 e2 f5 e1N g5 h2 g6 h3 f6 Rh5 g7 Rg5 Ra6 Ne7 g8N Qd7 Ne2 Nf5 Nd2 b1N Ba3 Bh6 f8Q Nc2 f7 Nc6 Nf4 Nd8 Bd3 Na1 Qf1 Nc3 Bb4 b6 d6+ Kb7 Rg1 h1N d5 h2 Nb3 Qe6 Bc2 b5+ Kd3 Rb8 d7 Ka8 d6 Bb7 Nf6 c4+ Kd2 Rc8 N6h5 Be4 Ng3 Rb8 Qe7 Rc8 f8Q Nf7 d8R Bd3 Bc5 b4 d7 Rb8 Qh8 Rc8 Rg8 Rd8 Rg6 Be4 Nc1 b3 Bb4 b2 Nb3 b1R Qd6 Rb8 d8B Rb2 Bc7 Rd8 Qdd4 Qc8 Rgc6 Rg4 Qf2 Ne3 Ng2 Ra2 Qf5 Nf2 Rb1 h1R Qf8 Bf4 Qh6 Rf1 Qff6 Rg6 Qfh4 Bd3 Qdf6 Qh3 Qf5 Nh1 Qff6 Ra3 Bd1 Rg5 Qf5 Ra5 Qff6 Rad5 Bc2 Bd6 Qf2 Bc5 Nf4 R5d6 Qg2 Rf3 Qf1 Bh7+ Ke1 Ncd5 Ke2 Nf5 Kd2 Nde3+ Kc3 Rd2 Bba5 Bb6 Kb4 Nd1 Kb5 Be3 Bb4 R2d4 Kb6 Nc3 Kc5 Rd2+
NK3R1N/3RBP1n/6bn/3rbN2/3Q2p1/2b1B3/BQ1Qrr1k/qnRb1n2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 b4 e5 h4 g3 f4 d6 c4 g2 h5 e4 h6 a4 b6 a3 h7 a2 b5 g4 c5 e3 c6 d3 b7 e2 c7 e1R b6 d2 Na3 Nh6 Bc4 Ra5+ Nb5 Re2 Nf3 g1N Nd4 Nd7 Kc6 d5 b8R Bd6 b7 Rf8 h8N Nf3 Qa4 d1N Be3 Qe7 Rc1 a1B Ba2 Nc3 Rhd1 Be5 Qc2 Qf7 Qd2 Nb1 Ra8 Qg8 b8Q Qg7 Qb6 Ba6 c8Q Nh2 Qcb7 Bc3 Nc7 Nf1 Q7a7 Rf7 Rf8 Bd3 Qbb2 Be4 Kb7 Bd3 Nc2 d4 Na8 Rd5 Kc8 Be4 Qc5 d3 Qd4 Ke7 f6+ Ke6 Kb7 Bg6 Kc8 Kf5 Kb7 Re7 f7 Nf6+ Kc8 Rc7+ Kb8 Rf2 Qb5 Nh7 Qb2 Ke6 f5+ Kd6 f6 Re7 Qdb4+ Ke6+ Qd6+ Kf5 Nd4+ Ke4 Nf5 Kf3 Qa3 Kg2 Qab2 Rc7 Qdb4 Kh2 Qd4 Re2 Re8 Rf2 f8B Ra7+ Bd6 Re7 f7 Qf6 Qdc2 d2 Rf8 Rc7 Be7 Qa6 Re1 d1B Re2 Qa4 Rd2 Re2 Rd3 Qa5 Qd2 Rf2 Bc4 Qa1 Ba2 Rcd7+ Nc7 R7d6 Na8 Re6+ Nc7 Ra5 Qa7 Bcd4 B3g5 Bg7 Na8 Bc3 Rd7 Ree2 Be3 Rd5 Qad4 Be5+
4q1Rr/B2K2bn/5qNk/qr3Bq1/1p1N3B/1bRN2bn/QP1Q4/Rb2Q3 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 Ke2 Kf7 Ke3 Kg7 Ke4 b5 Ke5 a5 g4 h5 d4 c5 f4 h3 g5 h4 d6 h2 d7 h3 Ke6 c4 g6 c3 f6+ Kh6 f7 b4 g7 a4 d5 a3 d6 c2 Qd2 Nc3 Bg2 a2 Na3 Ne4 Nb5 Ra5 Ne2 Nf2 Qe1 Nf6 g8R Bg7 f8N Nh7 Be4 Qe8 Be3 c1Q Nbd4 Rb5 Ng6 Qc6 Rg1 h1Q Nc1 h2 Nd3 Nh3 Rg3 Qg2 Bf5 h1B Bf2 Bb7 d8B Ba6 Rf3 Qg5 Bh4 Qc3 d7 Bb7 Re3 Bbe4 Bb6 Bhf3 d8Q Bd1 Ba7 Ba4 Nde5 Bb1 Nd3 Bb3+ Qd5 Qb8 Kd7 e5 Qg2 e4 Qgd2 Qe8+ Kd6 Qf8+ Kd7 Qg3 Ne2 Bd1 Nde5 Bbc2 Rb1 a1Q Bg4 Qa6 f5 Qca3 Nd4 Q3a5 Ra1 Bb1 Rc3+ Qf4 Nd3 Qg5 Qg1 e3 f6 e2 f7 e1B Bf5 Bg3 Qge1 Qb8 f8Q Qf6 Qf7 Bdc2 Qa2 Bb3 Qdf2 Qbf8 Qfd2 Qe8+
2N2r1r/nr2Nk1n/5b1R/nQ1Pq1Q1/2p2BBq/R1K1Rb2/r6N/B1nQ4 w - - 0 1 illegal: No possible last move, all moves rejected
N3n1B1/1K1RN2r/4q2R/nbP3k1/qQrBRq1N/p2b4/bb5B/QQq5 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 a5 Kd5 e5 b4 h5 c4 d6 f4 h3 g4 h2 b6 e4 b7 h4 b5 d3 b6 a4 Nf3 h3 Na3 e3 Nb5 e2 Nh4 e1Q Nc7 a3 Be3 Ra7 Na8 Nc6 b8B d2 b7 Bg7 c5 Qf2 Bc4 Qb6 Qb1 d1B Bb3 Be2 Bd4+ Ne5 Bc7 Rh7 b8Q Bb5 Re1 h1Q+ Re4 h2 g5+ Kf7 f6 Nc6 f5 Bca6 Ra2 Qc1 Rd2 h1B Qb7 Na5 g6+ Kf8 f7 Qf4 Rh2 Be5 g7+ Ke7 f8N Kf6 Nfg6 Kg5 f6 Bf3 f7 Nf6+ Ke6 Qc6 f8R Ne8 g8Q d5+ Bd6 Bd3 Rf7 Bab5 Rd7 Bd1 Bc4 Bb3 Qg7 Ba2 Ke7 Qa6 Kd8 Qb6+ Bc7 Qe6 Kc8 Bf6 Qh8 Bg7 Ne7 Ra6 Be3 Bb2 Bb3 d4 Kb8 Qg4 Bg8 Qe6 Bd6 Nc4 Qb6 Ra4 Kb7 Na5+ Kb8 Bc2 Nhg6 d3 Nc6 d2 Bf2 d1Q Qc3 Qff6 Rh6 Bf1 Nh4 Ba1 Bh2 Qff4+ Kc8 Rd4 Q6b4 Bb5 Ne7 Rc4 Bd4 Bd3 Qcb2 Qb3 Q2c3 Qa4 Qcb2 Bb3 Q2a2 Bb2 Qaa1 Nc6 Kb7 Ba2 Kb6 Na5+ Ka7 Nb3+ Kb7 Na5+
r2n1b1Q/5kn1/B1Qb1bp1/n4q2/1Q2PN2/RbN1r3/RK2R1NB/2Bq1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 a5 e4 f5 d4 c5 Kd2 g6 Kc2 a4 h4 c4 d6 g3 d5 a3 d7+ Ke7 d6+ Kf6 b6 f3 h5 g2 b5 a2 b7 f4 b6 f2 h6 c3 h7 f3 Rh3 Nc6 b8B Kf7 b7 Nge7 Ba6 f1Q Ne2 g1B Nf4 f2 Ng2 Bh2 Qg4 Qa5 d8R Qf5 d7 Bd6 Qe2 Qe1 Qb5 f1N Kb3 c2 Nc3 Qd1 Kb2 Qff3 Bc7 Nf5 b8Q Ng7 Q8b7 Qf2 Qb4 Qf5 Q7b5 Bb7 Rb8 Nd8 Qc6 Bc8 Re3 Bb7 Re2 Bc8 Rb5 Bb7 Ra5 Bc8 Bd2 c1N Ra3 Nb3 Bc1 Na5 Bb8 Bde7 Be5 Bd6 Bh2 Bb7 Qcc4+ Bd5 Qc6 Rg8 h8Q Bb3 Qh3 Rh8 Qh7 Kf6 Qg8 Rh3 Qh8 Ndb7 d8N Re3 Ne6 Nd8 Nef4 Kf7 Bd2 Bc4 Rc1 Bd5 Rc2 Bb3 Bc1 a1B+ Kb1 Rg3 Rca2 Rf3 Nb5 Bd4 Nc3 Bf6 Kb2 Re3
Nb1R1Nn1/b1r2P1K/QQ4p1/B2q1kBR/6qr/3brN2/Q1n3r1/1Rb4B w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 a5 h4 c4 b4 e3 d6 g6 h5 c3 d5 e6 d7 e2 h6 e1B h7 c2 b6 g3 b7 g2 b5 a4 d6 a3 b6 a2 Nc3 Nc6 b8N Qe8 d8B+ Nce7 b7 Qd7 Nb5 Bc3 Rb1 a1B Qd3 Bd4 Nf3 g1Q Rh5 Ba7 Nc7 Bb2 Bg2 Be5+ Kg4 Bh6 Qa6 Bef4 Kh4 e5 Bh1 e4 Be3 Qe6 d7 c1R Qa2 Be5 Bg5+ Kf5 Qa6 e3 Qa2 Bc5 Qa6 Ra7 Na8 e2 Ba5 e1R d8R Nc6 Nd7 Rc2 b8Q Qd5 Nf8 Nd4 Qb3 Bb8 Qa2 Rc7 Qb6 Ne7 Qa6 Bca7 Qb6 Rg8 h8Q Ba6 Qg7 Bd3 Qgf6+ Ke4 Qa6 Rh8 Qfb6 Kf5 Bf6+ Kf4 Re5 R7c4 Nh2 Rb4 f3 Qg2 Rh5 Ng8 Be7 Rh7 Bf6 Ke3 f4 Ke4 f5 Bc1 Nf3 Re3 Be7 Qh3+ Kg5 Rf2 Bf6 Rc7 Be7 Nc2 Bf6 Ne7 Kh6 Rg2 Kh7 Ng8+ Be7 Qh4 f6 Qhg5 f7 Kf5 Bf6 Rh4 Be7 Ke4 Bf6 Qg4 Bg5 Kf5
R2QNBk1/1q1rP3/2bb1qn1/2R1pn2/r5Rn/n1bK1NN1/2B2B1Q/b3Q3 w - - 0 1 illegal: No proof kernel
1kN1R2r/qqbBN3/4R1q1/nB3r1b/1p3K2/B3Nb2/1P1RQqr1/2qQ1Q2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 b5 h4 e5 fxe5 g5 d3 gxh4 Be3 Nd7 a5 Nb6 axb6 Kd7 Kf2 f5 Kf3 a5 g4 h5 g5 c5 d4 h3 d5 h4 d6 a4 b7 c3 b8Q c2 g6 c1R g7 f4 Qd3 c4 Ba7 c3 e4 a3 Ne2 a2 Bf2 h2 Nd4 c2 Na3 h3 Nf5 Ra5 Bc5 Ne7 g8N Qb6 Ne3 Nc6 e6+ Kd8 d7 Bd6 e5 Bc7 Rg1 h1Q+ Rg2 h2 Nac4 Qg1 Bd6 h1B Qe2 Qb7 Ba3 b4 Rb1 a1Q Nd6 Rc5 Ne7 Na5+ Kg4 f3 Kf4 f2 Qa8 Re1 Qaa6 c1Q Rg6 Qc2 Rd1 Bf3 Rd2 Qac1 Bh3 Bh5 Qf1 Qa4 Qae2 Rc2 Bf5 Qac6 Bd3 Qa7 Bb5 Bb7 Ndc8 Qca6 Rh6 Bbf3 Rg6 Q6b7 Rh6 Bd6 Rg6 Kc7 d8Q+ Kb8 Qd7 Bc7 Qd5 Ka8 N7f5 Rc3 e7 Kb8 Rg3 Ka8 Kg5 Kb8 e6 Bg2 e8R Rc4 e7 Bgf3 Qd6 Rc5 Kf4 Re5 Rg6 Rd1 Re6 Qg6 Rg8 Re1 e8B Rd1 Bed7 Re1 Qg1 f1Q Rge8 Qf2 Qdd3 Qf1 Qd1 Re2 Nfe7 Rg2 Q3e2 Qf2 Qgf1 Rf5#
b7/1r1R2b1/N2NbR1p/Q2brQB1/1KQ5/3B1q2/B1Nr1R1P/2nkrr1r w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Bg2 Nc6 Bf1 Nce7 Kd2 exf4 Ke1 f3 Ra5 f4 Ra1 Nf5 gxf5 Bb4+ Nc3 Bc5 Nb1 Bf8 Kd2 Ke7 c4 Kd6 b4 Ke5 e4 d5 f6 g5 f7 a5 c5 d3 Kc3 f2 c6 d4+ Kc4 f3 b6 a4 b7 g4 b8R a3 c7 d2 b5 Kf4 b6 Ke3 e5 d3 b7 a2 e6 g3 e7 h6 e8N g2 Nh3 g1R Kc3 Ra5 Nf6 Be6 c8B Qd5 Nf4 Ne7 Qa4 Nf5 Ne8 Rh7 Nd6 Ng3 Qc4 Bg7+ Kb4 Ne2 f8Q Qc6 Qf7 Re5 Na3 Qe4 Rb1 a1R Qf5 Bd5 Rb2 Be6 Bg2 f1R Nd5+ Kf2 Bd7 Ke1 Rd8 d1B b8Q d2 Qb5 f2 Qa5 Qf3 Bb5 Bb3 Nc7 d1R Na6 Rd2 Nc2+ Kd1 Rd7 Re1 Bh3 Rgf1 Rg1 Rb1 Rg6 Rh1 Ra2 f1B Rf6 Bg2 Bg4 Rhf1 Bh5 Bh1 Bf7 Bd5 Qc8 Be6 Bd3 Ra1 Qc6 Bbd5 Qc4 Rb1+ Bb2 Ra1 Bd4 Nc1 Be3 Rh8 Bg5 Rb8+ Qab5 Rb7 Bg8 Rc7 Qa5 Ba8 Rb2 Rb7+ Qab5 Qg2 Bh7 Rde2 Qh3 Rff2 Nd4 Ra2 Bdf5 Rg1 Bb1 Rff1 Bhd3 Ree1 Rbf2 Rc2 Ba2 Rd2 Nc2 Qg3 Qf5 Bhd5 Qb6 Rh1 Qbb5 Qf3 Qb6 Ra7 Qa5 Rb7+
b1B3Rr/2r1p3/2nnR3/N4nQ1/1n2Pn1B/3rb2K/QnkN1B2/R4rQN w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Bh3 Qc7 Bf1 Qc5 Rh2 fxg4 Rh1 g3 Rh2 g4 Rh1 Qg5 hxg5 Bg7 Bg2 Bh6 Bf1 Bf8 f4 Kf7 b4 Ke6 e4 a5 c4 h5 c5 d5 b6 a4 f5+ Ke5 b7 g2 Kf2 a3 Kg3 h4+ Kh2 a2 c6 h3 f6 d3 f7 Kd4 b5 d2 b6 Ra7 g6 Bh6 f8R Nf6 g7 Ne8 g8Q Nd6 Kg3 h2 Ne2+ Kd3 c7 g1N Bh3 d4 Bb2 Be6 c8Q Bd5 Qc5 Bf4+ Kg2 g3 Bc8 Nh3 Rf6 Bg5 Rg1 h1N Qa5 Bf4 Re6 Be3 Qf1 d1N Bc1 Bf2 Bg5 Kc2 Bh4 d3 Qa3 d2 Qe1 Nd7 b8N Ne5 b7 Be3 Nc6 Nb2 Na5 d1R Qg4 Rd4 Nd2 Rd3 Rb1 Bc6 Rf1 Bd5 Rf8 Bc6 Rg8 Nf4+ Kf1 Bd5 Qg5 Bc6 Qf2 g2+ Kg1 Ng3 Kh2 Ngf5 Ng3 g1R Nh1 Rf1 Qfg1 a1N Qa4+ Kc3 Qa2 Nc2 Rd1 Nb4 Ra1 Ne2 Kh3 Kc2 Rf8 Ndf7 b8B Ba8 Rg8 Nec6 Bd6 Rc7 Bg3 N7d6 Bf2 Nf4+
nB1bkrb1/r1Q2p1n/N2b1R1B/1b3Rn1/2Q1NP2/Rr1n2N1/1r6/QB4K1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra3 cxd4 Ra6 d3 Ra5 d4 Ra1 Qd5 exd5 Bg4 Bh6 Be6 Bc1 Bc8 g4 h5 c4 e5 f4 a5 Kf2 d2 b4 h3 b6 h2 g5 h4 b7 e4 g6 a4 d6 e3+ Kg2 a3 g7 a2 c5 e2 b5 e1N+ Kf2 h3 b6 d3 c6 Nf3 c7 Nf6 g8Q Nh7 Qc2 d1B Nd2 Bf5 Bb2 Na6 b8N Be2 b7 Ra7 Ne4 d2 Qc4 d1R Bg7 Rd3 Bh6 Rb3 Qg7 Nfg5 Bg2 Be7 c8Q+ Bd8 Q8c7 Rf8 Qb2 Bd3 Ne2 Bd7 N2g3 Bb5 Rhc1 h1N+ Kg1 Nf2 Rd1 Bc2 Rd5 Nd3 Rf5 Bb1 Bf3 Bc2 Bd1 Bb1 Bc2 h2+ Kg2 h1R d7+ Ke7 Rf6 Rh2+ Kg1 Re2 Qc8 Nc7 Na6 Na8 b8B Bc7 d8R Bd6 Q8c5 Rd2 Rd7+ Ke8 Qc7 Rf2 Bd1 Rc2 Qbd4 Rcb2 Bc2 Ba3 Rd5 Be7 Rdf5 Bd8 Bd1 Bc2 Rc1 Bb1 Bc2 a1B Qdc3 Ra2 Q3a5 Be5 Qaa4 Rab2 Qa1 Bd6 Re1 Rc3 Re3 Ra3 Bb3 Bc2 Ba2 Rab3 Bb1 Nb4 Ne2 Ra3 Nf2+ Be4 Rb3 Nd3 Rd5 Bg6 Ng3 Bf5 Rb4 Rab3 Ra4 Bg6 Ra3 Be4 Rg6 Bf5 Nfe4 Nf6 Rg8 Bh7 Rg6 Bg8 Rf5 Nfh7 Re6+ B8e7 Ref6 Bd8
2B3Q1/1K1rQn2/1npp1b1q/r2qbk2/RRP3N1/2N1B2B/qQ2N3/1bRr4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 d4 exf4 d5 c6 d6 Qc7 dxc7 Bh6 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Kd4 a5 e4 h5 b4 d6 g4 h3 c4 f3 b6 h2 b5 h4 b7 f2 b6 h3 Qd3 a4 Qe2 a3 Bf4 a2 Nc3 Ra5 Be3 Nd7 b8R Bg7 b7 Nb6 g5+ Kg6+ e5 f5 Qe1 f4 Nge2 Kf5 g6 Bf6 g7 Nh6 g8Q f3 Kd3 Nf7 e6 Bd7 e7 Be8 Rc1 a1B Ra8 Bd7 b8Q Be6 Rg1 h1Q e8N h2 Bg2 Be5 Nf6 f1R Ng4 f2 Bh3 Qd5+ Kc2 h1Q Kb3 Qh2 Kb4 Qf4 Rg2 Qh6 Qb7 Rg1 Ra7 f1Q Qh4 Qfd1 Qe7 Qc2 Rh2 Rc5 Ra4 Rd1 Rh1 Qa2 Rb1 Rd4 Rhc1 Rd1 Rb2 Nd7 Qb5 Nb6 Ka5 Bd7 Ka6 Be8 Qb4 Ra5+ Kb7 Bd7 Qg7 Rd8 Qg8 Bf6 Qa3 Be8 Rbb4 Bb2 Nb1 Bbe5 Qb2 Ng5 Qef8 Bg6 Nbc3 Nf7 Qfg7 Ke6 Q7f8 Bb1 Qe7+ Kf5 c8B+ Rd7+
QbnQ3R/N1B2N2/3qbR2/1b2NpR1/1r1Br1b1/QK1nPp1n/3kBr2/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 a5 g4 f5 b4 c5 e3 h5 b6 h3 b5 a4 b7 a3 b6 a2 g5 h2 g6 h4 g7 c4 Nd2 c3 Rb1 a1R Kb3 h3 Qc2 Ne7 g8N Be6 Ne2 R1a4 Ra1 Nbc6 b8R Ng6 b7 Na7 Rg1 h1B Rg5 h2 Nf3 Rc4 Bb2 Rh4 Qd3 c2 Nh6 Nc8 Ne5 Ra2 Nc3 Bf3 Be2 h1B Rc1 Bg4 Nb5+ Ke7 d6+ Kf6 d7 Bd6 Ra8 Bb8 Nhf7 Bc6 d5 f3 d6 Nf4 Bd4 Nh3 Na7 Bb5 Rd1 Qf8 d8B+ Qe7 Bc7 Qf8 d7 Qd6 Ba1 Re4+ Kc3 c1N d8Q+ Qe7 Q3d6 Nd3 Qa3 Rc4+ Kb3 Rac2 Qd5 Qd6 Bd4 Rd2 Bf1 Rf2 Be2 Bh5 Rd2 Re4 Qc6 Bg4 Qe8 Bed7 Qd8+ Ke6 Rd1 Kd5 Rh1 Be6 Rh2 Nhf4 Rh6 Nh3 Rf6 Rc5 Qa2 Ne7 Ba5 Bc7 Qd7 Rc2 Rf8 Nc8 b8Q Rc5 Qa8+ Rc6 Rh8 Bb8 Bdc3 Kc5+ Kc2 Rc7 Qd8 Rc6 Qa3+ Kd5 Nd7 Kc4 Bc7 Rc5 Bd4 Rc6 Qc1 Rc5 Nde5+ Kb4+ Kb1 Rc4 Ka1 Kb3 Qa3+ Kc2 Ka2 Kd2 Kb3 Rb4#
8/1NQp1q1p/r4Qq1/Nq1R3b/1k1PKB2/1b1r1B1B/RR2Q1q1/1n2qN1n w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 g4 c5 e4 a5 g5 f5 b7 a4 g6 c4 g7 h3 d3 a3 b6 h2 b5 Kc5 d4+ Kb4 e5 c3 e6 c2 e7 a2 e8R Qe7 Be2 Qf7 Qf1 Ra3+ Re3 Ne7 g8B Rd3 Nd2 Nbc6 b8Q Ba6 b7 Nd5 b6 Bc4 Qa8 Bb3 b8N Nce7 b7 Nc3 Nh3 Nb1 Ng5 Qg6 Rg1 h1Q+ Rg2 Qg1 Be6 Qh2 Bb2 c1Q Nge4 Qc6 Bc1 Qb5 Nc5 Rc8 Qa6 Rc6 Qb6 Rd6 Qd8 Ra6 Bd1 Qg1 Qe2 Qh1 Nf1 Qh3+ Kf2 f3 Re5 f4 Rd5 Nf5 Qf6 Ng3 Bg4 Qhh5 Bh3 Qf7 Rh2 Qhg6 Be3 Na3 Rb1 a1Q Rb2 Nb1 Bc1 Kc3 Nc6 Nh1+ Ke1 Qa2 Na5 Kb4 b8Q Qa1 Ncb7 Qa2 Qg2 f2+ Ke2 Qa1 Qc7 Qa2 Ne3 f1B+ Kf3 Qa1 Ra2 Qc3 Qe2 Qe1 Bf5 Bh3 Ke4 f3 Nf1 Bg4 Bf4 Bh5 Rg2 Qgg8 Bh3 f2 Qe3 Qg5 Bf3 Qg4 Qe2 Qgg7 Nd2 f1Q Rf2 Qfg2 Nf1 Qh8 Qe3 Qb8 Rfb2 Qbg8 Qe2 Q8g6+
3K1k1q/1PpQ3R/RQNN4/1r1R2bn/N2qnp2/1Br5/1B5Q/rrrB1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 h3 b4 f3 g4 f2 e4 f4 d4 a4 g5 a3 g6 h2 g7 h4 d6 h3 b6 a2 b5 Nf6 g8B Rh6 d7+ Ke7 d5 Ra4 b7 Rc4 b6 Rh7 Qd2 Bg7 d6+ Kf8 Ke6 Ne8 e5 Qh4 Bb2 Rd4 Ne2 Rc4 Nd4 Nc6 b8Q Ne7 Nc6 Bf6 Nc3 Bg5 Be2 f1Q Na4 Nd5 Bd1 Ba6 d8R Qg1 d7 Rc3 b7 Be2 Qa7 Bf1 Qb6 Qd4 Qf2 Nf6 Qg2 Kg7 Ke7 Rh5 Bgb3 Nd6 e6 Nde4 Qf2 Rh7 Qg2 Nh5+ Ke8 Kg8 e7+ Rf7 Rc8 Kg7 d8Q Rf5 Qd7 Rd5 Kd8 Rb5 Rc1 a1R Ra8 Rb1 Ra6 Ra1 Rc2 Rc1 Rd2 Rb1 Rg1 h1R Rd3 h2 Qh3 Nhf6 e8N+ Kf8 Nd6 Qh8 Rg4 Rg1 Rh4 h1R Qh2 Ra1 Rh7 Nh5+ Ne7 Rg3 Rd2 Rcc1 Rd3 Rcb1 Rd2 Rc3 Rd3 Qf2 Rd5 Qfd4 Bf3 Bh3 Be2 Rhc1 Bed1 Bh6 Nc6 Bf1 Rg7 Bg5+ Re7 Bh6 Rh7 Bg5+
qNrq1B1Q/P3p1K1/R2bnp2/1R1r1N2/4r3/n1Q2B1b/rr3B1Q/1k4NR w - - 0 1 illegal: No proof kernel
BBn5/Q2R1bQ1/3Q3b/nqBr3N/rq6/2pbrR2/p3PKN1/k2Nr2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 d4 Kd6 b4 c5 g5 f5 b6 h5 g6 a5 b5 a4 b7 c4 b6 h3 g7 c3 Ra2 a3 Rb2 f3 Nd2 f4 Bg2 h4 Rh2 a2 Rb3 f2+ Kf1 Qd7 Ndf3 Ra4 Rb1 Qb5 Be3 Ne7 g8Q Rh5 Ne1 Bh6 Qg7 Nbc6 b8N Bf5 b7 Bc2 Nd7 Nc8 Nf6 Na5 Be4 Re5 Nh5 Re6 Rg2 h2 Nh3 h1B Rg3 Qb4 Qc1 Bd3 Ra1 Bf3 Ng2 Bg4 Qb1 Re7 Qe1 Be6 Rb1 Bf7 b8B+ Kd7 d6 Ke6 d7 Qb5 Bg6 Kd5 d8Q+ Kc4 d5 Re4 Rc1 Kb3 d6 Kb2 d7 Re5 Be4 Rc5 Ng1 h3 Ba8 h2 Nh3 Rd5 Qdf8 Qb4 d8R Qb5 Qd6 h1Q+ Ng1 Qh3 Rd7 Qg4 Nh3 Qh4 Qde5 Qe7 Rd1 Qec5 Qd6 Qcb4 Qd2+ Bc2 Qdd4 Bd3 Rd2+ Kb1 Qa7 Ka1 Bc5 Qb3 Ne3 Q3b4 Kg2 f1R Nf2 Rc1 Rd1 f3+ Kg1 Rb1 Ng2 Rc1 Rf1 Re1 Nd1 f2+ Kh2 Nc6 Rh1 f1R Rh3 Rf4 Kg3 Re4 Kf2 Na5 Rf3 Re3
1QN2r1N/1B1bRRq1/NB6/QKb3pq/4BrRr/q3n3/2P1kqQp/6n1 w - - 0 1 illegal: No proof kernel
2nnb1RK/3qNB1B/QQRr2P1/Bp1p3N/5b1q/2R2qrQ/1r3N2/1k4r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 b5 f4 b3 a4 e6 c4 d3 g4 h4 f6 Kg6 f5+ Kh7 a5 b2 a6 d2 f7 h3 f6 Kg6 c5 h2 a7 Bd7 c6 Nh6 c7 Qe7 c8N Na6 Qb3 d1Q Nh3 Qe8 Nf4+ Kh7 Ne7 Qf3 Nd2 b1R Nh5 Rb2 Ne4 Nf5 Nf2 Rd8 a8Q Rg8 Bd3 Bh6 f8R Nb8 f7 Nc6+ Kf6 e5 Qa6 e4 Bd2 e3 Ra3 e2 Rc1 e1Q Ba5 h1R Rc3 Rg7 Rg8 Rg1 f8Q Rg3 Rc2 Qeh1 Qf7 Qh4 Qe6 Rg1 Qe3 Rg3 Qeb6 Rg1 Ng6 Nfe7+ Bf5 Rg3 Q3e3 Nc8 Rac3 Qee4 Qd3 Be8 Qf1 Rdd7 Qh3 Nd8 Rc6 Qef4 R2c5 Qc7 Rc3 Qb7 Ne7+ Rg6+ Ke5 Rd6 Be6 Bf8 Bf7 Rg7 g6+ Kh6 Qh1 Kg5 Qh2 Qd7 Qh3 Rh7 g7 Rhh6 Rh8 Rhg6 g8B Bh6 Bh7 Rg8 Kd4 Rg7 Rg8 Rgg6 Ng7 Kf4 g5 Rge6 g6 Re1 Rc1 Reg1 R1c2 Qh1 Nh5+ Kf3+ Ke5 Bf4+ Kd4 Qg2 R2c5 Ke2 Rc3 Bc1+ Ke5 Qf3 Be6 Bf4+ Kf5 Qhg4+ Kf6 Kd2 Kg7 Qh4 Bf7 Rc2 Ng4 Kc1 Nf2 Kb1 Kh8 Rb2
4bQR1/1Q2n1nk/1BN1p3/r2q1Pq1/p2b4/1n1r1B1N/2B1QRb1/K1N1bR2 w - - 0 1 illegal: No possible last move
1Q5b/K1B1N1nq/2b1p1RQ/3rpqBN/Q1P3kn/n3r3/B2RNnrR/8 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 axb5 f6 e5 fxe5 gxh5 Rh7 Ke2 Rh6 Ke1 Rh8 Ke2 Kf7 Kd3 Ke6 Kc4 Kf5 Kc5 a5 f4 d5 h4 g5 b4 d3 h6 g4 b6 d4 h5 a4 h7 g3 b7 d2 h6 g2 b5 a3 b6 d3 Rh2 a2 Nc3 Bg7 Ne4 e6 Ne2 g1R N4g3+ Kg4 f5 Nc6 b8Q Bb7 f6 Qc7 f7 Ra3 f8N Rg2 Ng6 Nge7 Nh5 Nf5 Ne7 Rd8 h8R Nh4 h7 Na5+ Kb5 Bc6+ Ka6 Rd5 Rd8 Bh8 b7 Qd7 c3 Nc4+ Qa4 d1N Ka7 Nf2 Bg5 d2 Rg8 d1N Rg6 Ne3 Rd1 a1Q Rd2 Bg7 h8Q Qb1 Qh6 Bh8 Ng8 Qh7 Ne7 Rg3 Bg2 Nef5 Be4 Qf1 Bb1 Rg2 Ba2 Rb3 Qa6 Na3 c4 Qb1 Qa4 Rbg3 Qd8 Re3 b8B Qf1 Bc7 Ng7 Qc8 Qb1 Qb8 Qf5
NQ2Bk1K/2b2NRn/3p1NRQ/1p4Rq/bbQ3br/n1B4P/Bqr5/q7 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 Kf3 g5 Kg4 b5 c4 b3 a4 d3 f4 d2 f6 b2 Kf5 d6+ Kg6 e4 h6 g4 h7 e3 f7+ Ke7 a5 g3 h3 g2 c5 e2 a6 e1Q c6 Qg3+ Qg4 d1Q a7 Qd7 c7 Qc2+ f5 Nf6 Nd2 b1B Bb2 Bh6 f8R Qdc6 Ne4 Bd7 c8B Qgf2 Rf7+ Ke8 Bc3 Qcb6 Bc4 Nc6 Nf3 g1B Ne5 Bd2 Kg7 Qe1 Ba2 Rb8 a8N Qc5 Qh4 Bd4 Rg1 Na5 Rg6 Nc4 Bb7 Bf2 Bc6 Qb2 Qf4 Qh1 Qg4 Bc2 Rg1 Ba4 Rg2 Ng8 f6 Na3 Qe2 Bh4 Qc4 Qha1 R2g5 Rc8 Re7+ Kd8 f7 Bg4 Rb7 Nf6 Be8 Rc7 Ra7 Ke7 Rb7 Qd5 Ra7 Bf2 Rb7 Bb6 f8Q+ Ke6+ Nf7 Rc5 Bc6 Bc7 Qb8 Ke7 Be8 Qf5 Bd4 Bb4 Bc3 Rf8 h8Q Nh7 Nf6 Qf3 Rd5 Qf5 Ra7 Qh5 Rdg5 Rc6 Bd7 Rc8 Be8 Rc5 Kg8 Rf5 Qg7 Rf4 Qh6 Re4 Kh8 Rd4 Rg7 Kf8 R5g6 Bgd1 Rg5 Rh4 Rb7 Bg4 R5g6 Bb6 Re7 Rc5 Re5 Bc7 Rf5 Rd5 Re5 Rd2 Reg5 Rc2
2Q4K/4bk1p/1n4N1/3b1Nqb/2n1BbR1/r2N3B/1QRqpQqP/B3R1r1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 e5 g4 f5 c4 a5 d4 e3+ Kf3 a4 c6 a3 b6 e2 g5 e1Q g6 a2 d5 Ra6 c5 Qf6 d6 Qeh4 c7 Qd8 c6 Ne7 b7 Bg7 d7+ Kf8 Qd4 Ra8 Bd3 Rg8 Qf2 Qe8 d8Q Qg5 Na3 Bf6 g7+ Kf7 Nc4 Qd7 Bb2 Ng6 Nh3 Be7 Rac1 a1B Rhe1 Ra3 Ne3 Qd6 Be4 Be6 c8Q Qd2 c7 Nd7 b8R Nb6 Qd4 Bd5 Bc3 Bb2 Rc2 Bc1 Qb4 Nc4 Qb6 Nf8 Qb2 Nd7 Rb4 Ndb6 Ra4 Rd8 g8N Rd6 Qe2 Rg6 Nf2 Rg7 Nd3 Rg6 Kf2 f3 Bd4 f4 Nf5 Bf6 Nge7 Rg7 Ng6 Be7 Kf1 f2 Qf3 Rg8 Qg3 Rg7 Kg2 f3+ Kh3 f1B+ Qg2 Be2 Qf2 Qa5 Rb4 Bf4 Ra4 Qd2 Bc3 Qf6 Kg4 Rg8 Kh5 Bd1 Ngh4 Rg1 Ng6 Be2 Qb4 Qg7 Ba1 Qg8 Qb2 Qd8 Qg3 f2+ Qf3 f1Q Rb4 Rg4 Qf2 Qg2 Ra4 Rg5+ Kh6 Bh5 Rb4 Ke8 Kg7 Rg4 Bf3 e4 Kh8 e3 Be4 e2 Qa6 Qf1 c8B Qg2 Be6 Rg3 Qc8 Rg5 Bd7+ Kf7+ Nf8 Ne5 Qfc5 Bd6 Nh4 Qg4 Bh1 Bg3 Qf2+ Qf3 Re4 Nec4 Bh3 Rg4 Nf5 Q8g5 B1g2 Be7 Ng6 Bgd6 Bh1 Rg1 Rg4 Bf4 B1g2 Qg3 Be4 Qg2
K4N2/b1Q2Q1p/7b/rnN1RR2/6pB/P2N2Bb/BRq1r1q1/1n1rQr1k w - - 0 1 illegal: No proof kernel
NB1R1q2/3rpRq1/NR1b1r1p/kn2QbN1/B2BPnbQ/8/1b1K4/6qQ w - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 e4 Kd7 b4 g5 d4 a5 f4 c5 b6 g4 b7 Kc7 b5 Kb6 d6 g3 d7 h2 f5 c4 d5 c3 f6 a4 f7 g2 d6 h6 Be3+ Ka5 b6 a3 Nf3 g1B Ng5 c2 Bd4 c1Q Nd2 a2 Bb5 Ra7 Ba4 Nc6 b8N Nf6 b7 Be3 Na6 Bf4 b8B Nh5 Rf1 h1B Rb1 a1Q Rb6 Bg7 f8Q Bf3 Qf6 Qf8 d8Q Rd7 Qc7 Na7 Qc5+ Nb5 Qce5 Bh2 Qff4 Rh7 Qh4 Bg4 Rf7 Qc5 Qb1 Nf4 Qd1 Qac3 Qf3 Bh8 Qh1 Bf5 Kd1 Rg7 Ke1 Rg6 Kd1 Rf6 Ke1 Ra7 d7 Bg7 d8R Rd7 Ne6 Bh8 Nec7 Qg3+ Kd1 Qgg7 Na8 Bg3 Bb2 Qf2 Bd4 Qg1+ Kc2 Be1 Nf3 Bb4 Ng5 Bd6 Kd2 Bg4 Qe6 Rc7 Bc5 Qgg8 Rd7 Rf5 Bb3 Bb2 Ba4 Rf6 Bd4 Qgg7 Rd8 Bd7 Qd5 Bdf5 Qe5 Rd7
8/prQ3Nk/2P2bn1/Bpqb4/R2n1rRq/NrQ2b1B/1Q2N3/2BRKb2 w - - 0 1 illegal: No proof kernel
4n2N/pK3rQ1/1p6/2N1b1n1/R3BBR1/bQb1P2B/2q1R1b1/bbQ2rNk w - - 0 1 illegal: No proof kernel
8/1q1Qb2N/k2p2N1/n2BBR2/4RQ1r/n2b1NK1/bnP1BpRn/b3Q2r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 h4 f5 e4 a5 b4 d3 b6 g4 h6 a4 b7 f3 b5 d2 e5 a3 e6 a2 b6 f4 h7 Qc7 h5 Kd8 h6 Nf6 Be2 Nc6 b8R Ra4 b7 Na5 Rh5 Ne8 Nc3 Be7 Qe1 Nd6 Bb2 Nb5 Nd5 Na3 Be5 d6 Rf5 Qd7 Nf6 Kc7 Ra8 Kb6 b8Q+ Bb7 Qf8 Bd5 Re8 Qb7 Rc1 a1B Qf7 Rf8 h8Q Ba2 Qhg7 Rh8 h7 Rd4 Rg8 Rc4 Rb1+ Ka6 Rb4 d1N+ Kf1 f2 Nf3 g3 Kg2 Bd8 e7 Nb2 e8B Be7 Kh3 g2 Bc6 f1B Bd5 g1N+ Kh2 Bb3 Qgf8 Ba2 Rg2 Bd8 Qd7 Be7 Nd4 f3 Kg3 f2 Nf3 Qb5 Qh6 Rh4 Qf4 Rh1 Re4 Rh4 Bd1 Bd3 Be2 Qb7 Rh2 Rf8 h8N Ra8 Ng6 Rah8 Rg2 R8h6 Nd4 Nf3 Nh7 Nh2 Nf3 Ng4 Rg5 Rh1 Rh5 Nh2 Rf5 Rh4
3N4/k1p3br/1nP2RQr/b5B1/1R3Q1N/BBKbNq1r/2b1Rp2/q2b2Q1 w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Nbd7 h5 Ng8 Qf3 Ne5 Qd1 Ng6 hxg6 Bh3 Qh5 Be6 Qd1 Bc8 c4 Kd7 d4 e5 Kd2 h5 b4 a5 g7 f5 d5 h4 g6 e3+ Kc2 h3 c5 e4 d6 h2 b6 Kc6 d7 Kb7 b5 f3 Ra2 f4 Bd3 f2 Kb2 f1B Qa4 e2 Bc2 e1R Na3 f3 Bb3 f2 Kc3 e3 Re2 Rh3 Nf3 Nf6 g8Q Bg7 Nh4 Ra6 Nc2 Qf8 d8B Bg4 Qf4 a4 Ba3 Nd7+ Bf6 Ka8 b7+ Ka7 b8N Nb6 Rg1 h1B Nc6+ Ka8 Rg3 Be4 Nd8 Ka7 Rf3 Bh5 Qe6 Rd1 Qeg4 Rd7 Qg1 Bg4 Qe5 Bd3 Bg5 Bg2 Rf5 Bge4 Rf6 Re7 Qf4 Rf7 Rd2 e2 Ne3 Re7 Ra2 e1B+ Rd2 Bd1 c6 Ra5 Bb4 a3 Bd6 a2 Ba3 Bh8 g7 Rf7 g8Q Rh7 Qg6 Bg7 Kb2 Ra4 Rc2 Ba5 Re2 Rb4 Kc3 B3c2 Qe1 Bed3 Qg1 a1Q+ Bb2 Nd7 b6+ Ka6 b7 Ka7 b8R Nb6 Kd2 Qf7 Ba3 Qd5 Qfg3 Qf3 Qf4 Na8 Rb6 Re4+ Rb4 Nb6 Qf7 Re8 Qh5 Reh8 Qg6 Qa2 Kc3 Rh6 Neg2 R8h7 Ne3 Qa1+
4rn1r/1b1Q2B1/2N1Q1RQ/5N2/pn1B2Rp/Kb4nP/r1rr1b2/RB3Nk1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Bh3 Qg5 Bg2 exf4 Bf1 f3 Nd2 f4 Nb1 Qf5 gxf5 Kd8 Qd2 Ke7 Qd1 Ke8 Kd2 Ke7 b4 Kd6 e4 Ke5 c4 g5 Kc2 a5 Kb3 h5 h3 d5 c5 f2 c6 a4+ Kb2 g4 c7 d3 f6 Kd4 e5 d2 b6 Ke3 e6 f3 f7 d4 b5 d3 b7 g3 e7 h4 e8R+ Ne7 b6 g2 Ne2 g1R Nd4 Rg2 Rg1 Nd7 b8B Bb7 c8Q Bg7 Bg3 Nf8 Be5 Nd5 Ka3 Nb4 Bb2 Bf6 Be2 f1R Nf5+ Kf2 Re6 Re1 Rd6 Rb8 Qe6 Bg7 Bec3 Bd4 Rc6 Rh2 Rg4 Rg2 Rd6 Kg1 Bf1 Be3 Bg7 f2 Bbd4 Re8 Be2 f1N Bf3 Rc8 Be4 Rc2 Rc6 Bf2 Rd6 Ng6 f8Q Ng3 Qff6 Nf8 Qh6 Bd5 b7 Rh2 b8N Bb7 Qc1 d1B Nc6 d2 Qd7 Rb2 Qc4 Bb3 Rdg6 d1R Qce6 Rdd2 Bd3 Rdc2 Nd2 Rg2 Nf1 Re5 Qf6 Re8 Qfd6 Be3 Qf6 Rgd2 Qfe6 Bf2 Be4 Rc4 Bb1 Rc1 Nce7 Rcc2 Nc6 Ra2+
Nnq2Q2/qb2nBp1/1RNq4/2b1p2Q/1RNb2P1/RQ4rK/4b3/2kqB1B1 w - - 0 1 illegal: No proof kernel
2b1B1Q1/qb4N1/1N2Qr2/1n4B1/K2N1r1B/Q1Rn1p1R/3pPRrp/1k1n2b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 c4 Ke5 Kc2 h5 Kb3 f5 g4 d5 c5 a5 g6 f3 g7 a4+ Ka3 f2 g5 d3 c6 Kd4 b6 d2 g6 f4 c7 h4 b7 h3 Nc3 Nf6 g8Q Ng4 g7 Na6 b8N Rh6 Qb3 d1N Ne4 Qe7 Nd7 Rf6 Ng5 Ne5 Qe6 Nd3 Bg2 f1B g8Q h2 Nb6 Bb7 c8R Nc7 Be4 Qh7 Bg6 Bh3 Be8 Bc5 Qa2 Kc3 N1f3 d4 Rf1 Qe7 Rf2 Qf7 Rb1 Rb8 Qa1+ Kc2 Rb3 Bg4 Qd5 Qg7 Ne6 Qe7 Ng7 Nb5+ Ka2 Bd7 Qde6 a3 Rc6 Rd8 Be3 Bdc8 Bc1 Nc7 b5 Rd5 Bd2 Rg5 Be3 Rg2 Bc1 N3b2 Re3 d3 Nd4+ Kc3 Rh3 f3 Bg5 d2 Na8 Qd7 b6 Nb5 Bh4 Qc7 Bg5 Qb8 Rc7 Qa7 Rc6 Ba6 b7 Rf4 b8B Bab7 Nb6 Rf6 Nb3 Kc2 Bg3 Nd3 B3h4 Rf4 Qd4 Rf6 Qde3 Rf4 Nd4+ Kc1 Kb3 a2 Bg6 a1R Be8 Ra6 Rc7 Kb1 Rc6 Be7 Rc3 Ba3 Q3e5 Be7 Q5d6 Bf8 Qa3 Bc5 Nd7 Rd6 Nb6 Rc6 Qf5 Rg6 Qfe6 Rgf6 Rf1 Rh6 Ndf5 Bg1 Rf2 Rf6 Nd4 Ba6 Ka4 Bab7+
1rR1br1q/k3p3/N1p1R2Q/1QN1B2B/n3B3/pn2rP2/Q2b1b1K/3Rn1N1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 d4 a5 g4 h5 g5 a4 g6 e3 g7 h3 d6 h2 b6 Kc6 b7 Kb6 f3 e2 Kf2 e1B+ Kg2 c6 b5 a3 d7 h4 d5 Ka7 d6 Bd2 Bb2 Bf4 Qc2 Na6 b8N Qb6 d8Q Qd4 d7 Nf6 g8B Bg7 Bd3 Ne4 Bf7 Nec5 Nd2 Na4 Bh5 N6c5 Qf8 Nb3 d8R Bd7 Re1 Be8 Ne4 Bd2 Na6 Rb8 Nec5 h3+ Kg3 Bgh6 Re6 Bhe3 Qh6 Rf8 Be4 Qh8 Be5 Bd4 Qa2 B4e3 Ne2 Bd4 Rf1 h1N+ Kh2 Nf2 Ng1 Nd3 Rc8 Bf2 Rd1 Ne1 b6+ Ka8 b7+ Ka7 Kh1 h2 Nh3 Nd3 Kg2 h1R Ng1 Bd4 Kg3 Rh4 Kg2 Ne1+ Kg3 Rhf4 Kh2 Bf2 Bc2 Re4 Bd3 Re3 Bh7 Ra8 Be4 Kb6 b8Q+ Ka5 Qd6 Kb6 Qd3 Ka7 Qb5 Rb8
1Q4Nk/Q1qn2R1/2Q3rq/Bqn1rpNB/3p3B/2Rp1N1P/2K2b1R/3r1b2 w - - 0 1 illegal: No possible last move, all moves rejected
3qbN1R/1Bq1P2R/nN2Q2Q/Br1nN3/p1nq1pKb/3p4/1RQ2r2/3B1k2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 b4 Kd5 e4+ Ke5 c4 g5 h4 d5 h6 a5 h5 f5 c5 a4 h7 d3 h6 Kd4 b6 d2 c6 Na6 b7 Bd6 b8Q Qf8 b5 Qe8 e5 Bb7 e6 Qe7 b6 Qc7 e7 Nf6 Na3 Rf8 Qc8 Rb8 Qc2 d1Q+ Be2 Bc5 h8R g4+ Kf2 f3 h7 Ba8 b7 Qd3 Nc4 g3+ Ke1 g2 Kf2 Bb4 Rb1 Bd2 Rb6 Bg5 Rb2 Qd1 Bf4 Bh4+ Bg3 Qd3 Nb6 Ke4 Bd1 d4 Qd7 Nd5 Rh3 f4 Rh2 Rf5 Qe6+ Re5 Rh3 Rd8 b8N Bb7 Ke1 Ke3 N8d7 Bc8 Nf8 Bd7 Rh1 Be8 Rh2 Qa3 Rh1 Qad6 Rh3 Rb8 Rh2 Qcd8 c7 d3 c8B Q6c7 Bb7 Rc8 Rg8 Rb8 h8Q Rc8 Qhh6 Rb8 Rh8 Re4 Be2 f2+ Kd1 f1N Be1 Nd2 Nf3 g1Q Ne5 Nc4 Rh1 Qg6 Ba5 Kf2 Rh3 Qf6 Rh1 Kg3 Ke1 Re3 Kf1 Rf3+ Kg1 Rf2 Bd1 Qg6 Rh2 Qe4 Rh7 Qd4 Kh1 Rd2 Rh3+ Kf2 Kh2 Bg5 Rh5 Bh4 Kh3 Kf1 Kg4 Rh2 Rg5 Rd2 Rg8 Rf2 Rgh8 Bd7 Nc8 Bb5 Bc6 Rb6 Ba8 Bd7 Bb7 Rb5 Nb6 Be8
r4k2/1Rp2BbP/R4B1Q/4Bn1b/1p3N1r/Q2Npr2/1qNnR2Q/2bKq3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 g5 a4 b5 f4 e5 d4 g3 a5 b3 a6 b4 a7 g2 f6 b2 d6 g4 f7+ Kd7 f5 e4 d5 e3 f6 g3 h5 Na6 h6 Bg7 f8R Rb8 a8Q Rh7 f7 Nf6 Qe2 Rh8 h7 Bh6 Nf3 g1R Na3 b1Q Nc2 g2 Rh2 Ne4 Kd1 Nd2 Nfe1 Qb2 Nd3 Nc5 Ra6 Nce4 Re8 Bg7 f8Q Qg5 Qf6 Rb6 Qh6 Rh1 Rf8 Bb7 Rb8 g1B Rf2 Bc8 Rb7 Ke8 d7+ Ke7 d8N Bg4 Ne6 Nd6 Rh2 Nf5 Nef4 Qh4 d6+ Kf7 d7 Bf2 d8B Kf8 Qa7 Be1 Bf6 Bh5 Bg2 Rf1 Bd5 Rf3 Bf7 Rd6 Qg2 Rd4 Qg1 Re4 Re2 Qh1 Qh2 Rd4 Nh3 Rh4 Nhf4 Qc3 Ra2 Ne4 Nc5 Bd2+ Ne1 Rg8 Ba3 Bc1 Ncd3 Nd2 Bb2 Qa3 Bbe5 Qb2 Qa4 Rh8 Qb3 Qg1 Ra6 Qf1 Bd5 Ke8 Qa3 Qf2 Nc2 Rf8 Be4 Kf7 Bc6 Ra8 Be8+ Kf8 Bf7 Qe1+
1b1q3K/p4rR1/2Bqk3/N4b1P/1rp4N/1R3pnR/BB2nbQQ/N1Q1q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 c5 e4 g5 h4 f5 d4 g3+ Kf3 g2 h5 Qa5 b6 Qa4 b5 Bh6 b7 Nc6 b8R Qa6 e5 Bg7 e6+ Ke7 d6+ Kf6 e7 Rh7 e8B Nb4 d5 Bb7 b6 Rh6 d7 Na2 d8N Ne7 Bc4 Bc8 b7 Rh7 d6 Nc3 d7 Qd6 Ba2 c4 Na3 Ne2 Nc6 Ke6 d8Q Be5 Nc2 Rf7 Na5 Bd7 Rh3 g4+ Kf2 f3 Ke3 g3 Bb2 f2 Nf3 f1Q Qc1 f4+ Ke4 g1B Nh4 Bc8 Bc6 g2 Qg8 f3 Rb1 Qf2 Na1 Qb6 Qg7 Bd7 Rg8 Bf2 b8Q g1Q Qg2 Qe1 Rg7 Qd8 Qc7 Nf5 Qb8 Q6f8 Qc7 Bh2 Qcg3 Rb8 Qgf4 Ke7 Ke5 Rb4 Qfg3 Bhg1 Q3h2 Nfg3 Ba3 Bg4 Rb3 Bf5 Bb2 Nc3+ Kf4 Nce2+ Kg5 Ke6+ Kh6 Qfd6 Rg8 Rf6+ Kg7 Rf7+ Kh8 Bb6 Qd2 Bgf2 Qd1 Bc7 Qc1 Q8d7 Rg4 Bb8 Rg7 Qd8+
1Qr3bq/RrNpk1B1/p2pP3/4r2r/BN6/nR3r2/1N2n2R/2QQb1BK w - - 0 1 legal: proof: f4 e5 a4 exf4 d4 h5 g4 b5 gxh5 Ne7 axb5 Ng8 d5 Bb7 d6 cxd6 Qd5 Ba6 Qd1 Bc8 Kf2 f5 Kg2 g5 e4 g4 c4 g3 b4 Qb6 h4 Na6 e5 Rh6 c5 Re6 c6 Qc5 b6 Qa5 b7 Qc7 b8R Be7 b5 Kd8 h6 Ke8 b6 Qd8 c7 Nf6 h5 Nd5 b7 Nc3 h7 Ne2 h8B Nb4 h6 Bh4 h7 Ke7 Nc3 Nc2 Nh3 Na3 Rh2 f3+ Kh1 f4 Na2 f2 Bg7 f3 Nb4 Qh8 Be3 Rh6 Nf4 Rh5 Bg2 f1R+ Bg1 f2 Bc6 Re1 Nfd3 f1R Nb2 Rff5 Ba4 Ref1 Rc1 R1f3 e6 Re5 Rc3 a6 Rb3 Bg5 Qc1 Bd2 Qd1 Ra7 Ra8 Be1 b8Q Bb7 c8Q Be4 Qcc1 Rb7 Ra7 Bg6 Qd5 Bf7 Qdd1 Qc8 h8N Bg8 Nf7 Qf8 Nh6 Qf6 Ng4 Qh6 Rh3 Qh8 Nf6 g2+ Kh2 Rc5 Ne8 Rc8 Nc7 Re5 Bf2 g1R Rh6 Rg4 Kh1 Rge4 Rh2 Rh4 Bg1 Rhh5
QR1n1Nk1/pN6/qP4b1/4Kb1Q/2Rp4/2Q2Bp1/nRb4b/b2NrrBB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 g5 Kg3 f5 b4 Kf7 e4 d5 c4 d3 h4 d2 h5 d4 c5 Qe7 c6 Nh6 c7 Na6 b6 Qd8 b7 Rg8 b8R Bb7 c8Q Be7 b5 Qf8 b6 Rh8 e6+ Kg8 e5 Bc5 e7 Kg7 e8B Nb4 e6 Be4 e7 Kg8 Bc6 Nf7 e8N Na2 h6 Bb4 Nd6 Nd8 Bg2 Bc3 Nb7 Qa3 Nf3 Qa6 Rh2 Bd3 Qh1 d1B Nh4 B1c2 Ng6 Rh7 Bd2 Re7 Bcf3 Re1 Be3 Be4 Nf8 f4+ Kf2 Bb2 Nc3 Bf5 Rc1 Ba1 Nd1 Bg6 Qc3 Bcf5 Be4 f3 Kg3 f2 Bgf3 f1B Rb2 Bd3 Qh5 Bc2 Bg1 Rf1 Kg2 g3 h7+ Kg7 Bc6 g4 h8Q+ Kf7 Kh1 g2+ Kh2 Re1 Kg3 Rf1 Kf4 g3 Ke5 Re1+ Be3 g1B Bh1 Bh2 Bcf3 Rf1 Bg1 Qa3 Q8h6 Kg8 Qhd2 Qa6 Qc8 Bce4 Rc4 Bc2 Qc3 Kg7 Kd5 Nc1 Qc6 Kf7 Na5 Kg8 Rc8 Nf7 Qb7 Rb8 Qa8 Na2 Re8 Rb7 Rb8 Re7 Nb7 Nd8 Kd6 Ree1 Kd5 Bfe4+ Ke5 Bef5+
2K1n3/q1b1B2B/1N1B1Q2/1r4N1/1bQRN1b1/1n2pRp1/1krPp3/r3Qb1R w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 gxh5 fxe4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 g5 f4 b5 a4 b3 h4 Kb4 a5 c5 a6 c4 f5 g4 h6 b2 h5 g3 a7 e3 f6 e2 h7 c3 h6 c2 f7 Kb3 d6 Qd7 Nf3 Na6 Nc3 b1R Ra4 Nf6 Ng5 Nc5 Ba3 Ne8 Qe1 c1B Rd4 Bb2 Nce4 Qb7 Bh3 Bg4 d7 Ra1 d8R Rc8 a8N Qa7 Nb6 b4 Kd5 e5 Rd3+ Kc2 Rf3 b3 Bg2 Bd6 f8B Bc3 Be7 Bc7 Kc6 b2 Rd4 Nb3 Bad6 b1B Bh3 Rg8 h8Q Bb4 h7 Kb2 Qf6 Rf8 Qf4 Rf5 Kd7 Bd3 h8Q Bc2 Nf2 e4 Qf6 e3 Nfe4 Bd3 Bg2 Bh3 Qh4 Ba6 Qf4 Rb5+ Qg4 Bb7 Qge6 Bg4 Bh3 Bh5 Bf5 Bg4 Qc4 Bh3 Nf2 Bf1 Bh7 Ba8 Rff4 Bf3 Nfe4 Rb8 Rf5 Rb7 Kc8 Bg4 Nd7 R7b6 Rf4 Rc6 Rf3 Bh5 Nb6 Rcc5 Qce6 Rc2 Qc4 Bg4+
bRn1N2b/2rpkp2/B1Q1N2q/Qp6/1n1b2nR/Q5B1/Kb1N1P1r/1B2R3 w - - 0 1 legal: proof: d4 b5 b4 h5 g4 e5 dxe5 hxg4 a4 c6 axb5 Bc5 b6 Bf8 b5 cxb5 Kd2 a5 Kc3 g5 Kb3 a4+ Ka2 a3 c4 g3 e4 g2 h4 g4 h5 g3 b7 Bb4 h6 Kf8 c5 Qh4 c6 Be7 c7 Nc6 b8R Bc5 h7 Qh3 e6 Na5 e5 Ra7 Qd3 Ke8 Bf4 Ne7 Ne2 g1B Nd2 g2 Re1 Bd4 Bg3 Nac6 Nf4 Qh6 Rh4 Bh2 Qe4 g1N Bd3 Bb2 Bb1 Nf3 Qb4 Kf8 Qa5 Nb4+ Kb3 Rg8 h8Q a2 Qf6 a1B Qg6 Ke8 Qc2 Rh8 Qc6 Ng5 Qa3 Nh7 Qa5 Nf6 Qa3 Nc2 Ka2 Ng4 Qa5 Nf5 Qa3 Nd6 Qa5 Ke7 Qa3 Ba6 c8B Bb7 Qa5 Ba8 Ba6 Nc8 Qa3+ Ke8 Qa5 Kf8 e7+ Kg8 e8N Kf8 e6 Rc7 Nh3 Bd4 Ng5 Bab2 e7+ Kg8 Bd6 Bhe5 Ne6 Bf6 Bg3 Rh7 Nd6 Bh8 e8Q+ Qf8 Rhh1 Rh2 Qe7 Qh6 Ne8 Nb4+ Kb3 Rg2 Rh4 Rh2 Qec5 Nc2 Qca3 Nb4 Nd8 Kf8 Ne6+ Ke7 Nd6 Nd5 Ka2 Ba7 Ne8+ Bc5 Q3a4 Bcd4 Qa3+ Nb4+
b2Q2N1/Bp4NK/r2n3b/2P4Q/b2n2R1/r1kNp2Q/B1qbBrRp/6R1 w - - 0 1 illegal: Other
2qBQ3/1n1R3Q/r4qp1/q2BrR2/nNR1pqPQ/7b/N2Nnp1B/K2k4 w - - 0 1 illegal: No proof kernel
n4K1b/4Rb2/3nN3/BpR1R1Q1/kn1Bpp1r/3PpQrN/8/q1Nr1BQ1 w - - 0 1 illegal: No proof kernel
1R1qQ3/r1BN1bB1/1N3PQQ/2N5/1R2p1np/pKnp3k/3br1R1/bB4q1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 a5 c4 d5 Kc2 h5 b4 h4 f5+ Ke5 b6 a4 b7 e6 f6 e3 g6 Kf4 c5 Kg3 g7 e5 b5 e2 b6 e1B g5 e4 g6 a3 c6 d3+ Kb3 d2 c7 d4 Bd3 Qd7 Ra2 Qf5 Nc3 Qh3 Na4 Na6 b8B Nh6 g8Q Ng4 g7 Nf2 b7 Nb4 Qh5 Qf1 Nf3 Ra7 Ne5 Bd6 Bb1 Ng4 Qge8 Qg1 g8Q Nd5 Nc5 Be6 c8N Bf7 Ned7 Be5 Qgg6 Rg8 Ncb6 d1Q+ Rc2 Bc3 Bh6 Bd2 Bg7 Kg2 Rh2+ Kg3 Rg2+ Kh3 Bh8 Rg7 Bc7 Rg8 Qgh6 Rg5 b8R Rf5 Nd3 Rf2 N3c5 Re2 Q6g6 d3 Qhh7 Ba1 Qhh6 Qde1 Bg7 Qg3 Rc4 Qd6 Rd4 Qe7 Rc4 Qd8 Rb4 Nc3+
Nr1q2QQ/N2Bq1RP/1Bp2Qn1/R1Nb2R1/2pp2K1/4b3/p2k2Bn/4n1r1 w - - 0 1 illegal: No proof kernel
6KB/kb1pB1q1/BN1RnPN1/b1R4N/1n2Qp2/1pp3Q1/1q2r1qQ/2r1R3 w - - 0 1 illegal: No proof kernel
2N1B3/1r1BR3/bNQ2B1p/1n1n1qp1/2r1Q2R/4nP2/n1Qp2p1/R1N1k1bK w - - 0 1 illegal: No possible last move, all moves rejected
3b3B/1r2Q1b1/p3NrRK/5Q1N/Q3Rnbp/RBNp4/1P2bn1p/Bqk5 w - - 0 1 illegal: Other
8/1N4pr/B2bRBrp/4n1nQ/rk1K1q2/1rp3P1/1p2RQ1b/1Q1NRN1B w - - 0 1 illegal: No proof kernel
R4q2/1qRB3p/1p1q1n2/bp5k/2NBNp1P/K2Q1r2/1QQ3B1/2N1nRbb w - - 0 1 illegal: No possible last move, all moves rejected
5k2/3npr1r/Q2pn1R1/pR1PNpQq/NQ3BB1/B2r3N/2Rn1K2/3b2r1 w - - 0 1 illegal: No proof kernel
3q1r1R/3BkpB1/1nn1p3/r1N2rp1/N1NR1P2/B1Kn1pQ1/2QR1b2/rQ6 w - - 0 1 illegal: No proof kernel
3k4/p1N1r1b1/p3nrnp/1Bq2Qn1/QNRq1p2/Q1Bn3P/5RB1/N4R1K w - - 0 1 legal: proof: f4 e5 a4 d5 c4 f5 cxd5 exf4 g4 f3 a5 f4 a6 Bf5 gxf5 bxa6 Kf2 g5 b4 c5 e4 h6 d4 c4 d6 c3 b5 g4 d5 c2 b6 Rh7 e5 Rc7 e6 Ne7 b7 Rc3 f6 Qc8 h3 Qc4 f7+ Kd8 d7 Bg7 f8Q+ Kc7 d8N Bh8 d6+ Kb6 d7 Kc7 Bg2 Nec6 e7 Rd3 e8B Qe4 Nc3 Qe6 Bd2 c1N Ra2 Qe7 Qf5 Bg7 Qa4 Ne5 Nge2 g3+ Kg1 Ng6 Nd4 Qc5 Nc6 Re3 d8R Re7 Nb4 Nd3 Bb5 Nc6 Re8 Nd8 Ncd5+ Kd6 Bc3 Ne6 Rg8 Rf8 Rf2 Rf6 Nb3 Qd4 Nc7 Qc5 Nc6 Kd7 b8Q Qd4 Rc8 Qc5 Bf1 g2 Na1 Qd4 Kh2 g1N Bg2 Qc5 Qb6 Qd4 Qba5 Qc5 Rd2 f2 Ra2 f1Q Rf2 Qd1 Nb4+ Qc6 Qa3 Qd2 Q5a4 Qb2 Bd5 Nf3+ Kg2 Qd2 Rf1 Ng5 Kh1 Qe3 Bg2 Qb6 Rb8 Qd4 Rb7 Kc8 Rb6 Qcd6 Rc6 Kd8 Rc4 Q6c5
2bQNkq1/4np2/p2R4/QR2N1rp/p2QK1N1/2rR1P2/nqbB1p2/3B3B w - - 0 1 illegal: No proof kernel
nqR4r/p2N1pp1/NrnBBQb1/b6R/B3pq2/pN6/k2PR3/4QK1Q w - - 0 1 illegal: No proof kernel
r2n4/b1bk2nb/1B1N1n2/1N2K1b1/BB3R1R/rN1P1Q1r/2qB3R/4b2B w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 a5 h4 e5 b4 c5 g6 g3+ Kf3 c4 Ke4 f3 b6 f2 d6 a4 d7+ Ke7 f6+ Ke6 f7 a3 h5 g2 h6 a2 b7 c3 b5 c2 h7 Kd6 b6 Ra6 d3 Ke6 g7 Bb4 f8B Nc6 b8B Qc7 d8N+ Kd7 b7 Be1 Bb4 Qb6 Rh2 Ra8 Nf7 Nd8 Bcd2 c1B Nd6 Qc5 Nf3 g1B Bc7 Qc2 Bg2 f1N b8Q Bg3 Nc3 Ba7 Nd4 Ne3 Ncb5 Nf5 Qb7 Bf4 Kd5 e4 Nb3 e3 Bh1 e2 Rb1 Bg5 Ke5 e1B Qf3 a1R Bb6 Nf6 g8B Ra3 Bd5 Ng7 Bc6+ Ke7 Rh4 Bf5 Rb2 Bg6 Rf4 Bf5 Nc7 Bg6 Ba4 Be4 Ncb5 Kd7 Bdc3 Be3 Bd2 Bb8 Ra2 Bc7 Rb2 Rg8 h8R Bh7 B6a5 Ba7 Bb6 Be4 Rh2 Rh8 Rb1 Rh3 Rc1 Qc6 Rc4 Bh7 Rce4 Qc4 Rh4 Qc1 Ref4 Qc2
K5N1/P1Nr1Nnk/1b2R1R1/1r4B1/3Nn1b1/2q2qBN/n1nR1r2/nQ2B3 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Rh7 Bh3 Bh6 fxg5 Rh8 g6 Bg7 g5 Bf8 Bg4 hxg4 Kf2 c5 Ke3 b5 Ke4 e5 a4 b3 d4 b2 h4 b4 f6 b3 h5 c4 f7+ Ke7 d6+ Ke6 a5 c3 h6 c2 g7 g3 g6 Kf6 Kd5 g2 h7 e4 d7 e3 a6 e2 a7 e1Q Na3 b1R Rh6 b2 Bd2 c1N Ra2 Bc5 f8N Na6 Kc6 Bb6 d5 Nc7 d6 Ne8 Nh3 g1N Ne6 Nb3 Nd4 Na1 Nab5 Ne2 Nc7 Nc1 Qb3 Qde7 d8B Bg4 Kb7 Qe3 d7 Qc3 Be1 Rc8 Na6 Rc7+ Ka8 Rb7 Bc7 Qee3 Bcg3 Qf3 d8B+ Re7+ Nc6 Kf5 Nc7 Ngf6 g8R Ne4 Qb4 Rd7 Bg5 Ng7 Re8 Rf8 h8N Rff7 Re6 Rf6 Ra6 Na2 Nf7 Rc1 Rd6 b1N Rd2 Na3 Qb3 N3c2 Qb1 Ne6 g7 Rd1 g8N Ng7 Rg2 R1d5 Rg6 Rc5 Rd2 Rb5 Nfd8 Rf8 Re6 Rf6 Nd4+ Kg6 Nf7 Kh7 Qc1 Qg2 Qb1 Rf2 Rg6 Qh1 Re6 Qhf3 Rg6 Ba5 Rae6 Bb6
r6Q/4NNnb/1BKNr3/6RR/B1qbn1N1/kq2B2b/N5RP/2r1n1b1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 f4 e5 d4+ Kb6 f6 g5 d6 c5 Kd5 b3 f7 b2 d7 g3 f5 g4 f6 e4 Nc3 b1B Na2 Ka5 b6 e3 b7 c4 Nh3 e2 Rg1 e1R Be3 c3 Rg2 c2 Bb5 c1N Nf2 Nd3 Ba4 Qb6 d8N Na6 b8N Qb3+ Kc6 Nh6 d5 Nac5 d6 Ne4 d7 Bg7 f8B Nf5 f7 Bd4 Bc5 Ng7 f8R Rh6+ Rf6 Rh1 Rg6 Ne1 Nf7 Bc2 d8N Rg1 Rd6 Re6 Qe2 Bd3 Qb2 Qc4 Rc1 Rh1 Rc2 Rf1 Rg1 g2 Qa1 g3 Ng4 Re5 Rf6 Re6+ Nd6 Qb3 Nf7 Qc4 Rh1 g1Q Rh6 g2 Rh5 Qf2 Rb2 Qfc2 Rg1 Q2b3 Rf2 Nc2 Rff5 Rc1 Rfg5 Ne1 Qb1 Ba1 Qb2 Bb1 Qf6 Bd4 Qh6 Bc2 Qh8 Bd3 Rf1 g1B Rf2 Nd2 Rg2 Bh7 Nd7 Ne4 Nf8 Qcd3 Ng6 Qbc4 Bd1 Qdb3 Ne7 Ka4 Bc2 Qb4 Bb6 Ka3 Ba7 Ba6 Bb6 Bf1 Rd2 Bh3 Rg2 Nc5 Bd1 Q3c4 Ba4 Qbb3 Kc7 Ne4+ Kb7 Bc5 Kc6 Bd4+
R2R2q1/BN3q2/2BB1r2/n4k2/1bBrN1bb/r2q1rR1/2PK4/Bb3N1Q w - - 0 1 illegal: No possible last move
2BqNk2/n2R1N2/1r1pRbbN/2q5/rB1BrQ2/R2qP3/K4n1N/1b2N3 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kd2 f5 c4 g5 Kc2 g4 Kb2 d3 h4 g3 b6 d6 e3 f3 a6 g2 b7 f4 a7 f2 c5 f3 c6 d2 c7 Nd7 b8R Bb7 c8N Nb6 h6 Ne7 h7 Na4+ Ka2 Bc6 h5 Nb6 h6 Ng6 Ba6 f1B Na3 f2 Rb7 Bf3 Rd7 Bh5 Nc2 Be7 Qf3 d1R Ne1 Rd4 Ba3 Nf4 Bb4 Nh3 Qf4 Bd3 Ngf3 f1Q Nh2 Bf6 Ne7 g1Q Bc8 Re4 Nf5 Qg5 Rg1 Rf8 h8B Bg6 h7 Nf2 Nh6 Bc2 Rg2 Rb8 a8N Qc5 Rg1 Rg8 Nc7+ Kf8 Ne8 Qd3 Rg5 Rg7 Re5 Re7 Re6 Rf7 Bb7 Nc8 Ba6 Na7 Bc8 Be7 Be5 Bf6 h8N Rb6 Bd4 Rg7 Rb7 Rc7 N8f7 Rcc6 Rd7 Ra6+ Kb2 Ra4 Ra3 Rb6 Ka2 Bb1+
1rN1r3/bn1k1B1P/1nR1b1N1/3qq1p1/2Q2RN1/2r1B2K/2B1R1R1/3b1Rq1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 h6 Qe2 Bb7 Qg2 gxf4 g5 Ba6 g6 Bc8 Qg5 hxg5 Kf2 e5 Kg2 a5 d4 c5 h4 f3+ Kh3 a4 b4 a3 g7 c4 d6 e4 b6 a2 b7 e3 d5 f2 b5 e2 b6 e1Q d7+ Ke7 h5 c3 h6 c2 f6+ Kd6 f7 Ke7 d6+ Ke6 h7 Qf6 d8Q Bd7 Qc7 Ne7 g8B Ra7 Be3 c1Q Rh2 Qd4 Nd2 Ba4 d7 Qb4 d8R Qc2 Rd4 Qc6 Ne4 Qbd6 Rg2 Qe5 Nd6 Nf5 Nf3 Ra8 Nc8 Bc5 Rf4 Bd1 Nh2 Nd7 b8R Nd6 b7 Ba7 Bd3 f1B Ng4 Nb6 Bc2 Qcd5 Qc4 Kd7 Rb1 a1R f8N+ Ke8 Rc1 Ra3 Ng6 Kd7 Bf7 Rc3 Ra1 Bd3 Re2 Qg1 Ra6 Na4 Rc6 Bf5 Rg2 Be6 Re2 Bd4 Rf1 Nb6 Rg2 Ra7 Ra8 Ra1 b8R Re8 Ra2 Rb1 Rba8 Nb7 R8a4 Rb2 Rgf2 Nd6 Qb3 Na8 Bb1 Ne4 Rg2 Nc5 Bd3 Rb1 Rae2 Rb2 Qa2 Rb8 Bc2 Nb7 Rb4 Bb6 Rbf4 Ba7 Qc4 Nb6
2KBq1Nb/2n1B3/1k1B1n1r/b5N1/1B3NQ1/1rPR3b/2npRr2/1R1nB3 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kf2 d5 Kg3 Kd7 Kf4 Kc7 Ke5 a5 b4 a4 h4 d3 g7 g3 f6 g2 b6+ Kb7 f7 d2 g6 d4 c3 e6 h5 d3 b5 a3 h6 a2 h7 Be7 f8B Qd7 Rh3 Bd8 Be7 Qc6 Qg4 d1N Nd2 Qe4+ Kd6 e5 Rb1 a1N Ba3 Na6 Bb4 Nc5 Ndf3 d2 Ne2 g1R Ng5 Be6 Rd3 Na6 Nf4 Nf6 g8R Nc2 g7 Rg2 Re8 Nc7 g8N Qg6 Rd4 e4 Rd3 Kb8 b7 Ka7 Kc6 e3 b6+ Ka6 b8B e2 b7 e1B Ba7 Bg3 Bf2 Rb8 Be1 Bf2 Kd6 Bd4 Kc6 Rf2 Kd6 Ra8 b8B Ra7 Kc6 Rb7 Kd6 Nb5+ Kc6 Ba5 B8d6 Nc7 Bd8 Bc8 Re2 Be5 Qg2 Bh3 Qg4 Nh5 Kd7 Nf6+ Kc8 Qe8 Be7 Kb6 Nh6 Rg8 h8B Rg6 Ng8 Rh6 Bg7 Nh7 Bgf8 Bh8 Bed6 Nf6 Bde7 Kc6 Bbd6 Rb3 Bb4 Kb5 Bed6 Kc6 Bfe7 Kb6
BR2nN1Q/1bk2Pnp/n2r1B2/5bbb/1n3N2/3Bb3/2NBK1rR/R2B4 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 f4 hxg5 Bg7 d4 cxd4 g6 Bf8 g5 Qc7 Rh2 Qe5 Rh1 Qf5 exf5 Bb7 f3 Bxf3 Bg2 Bb7 Bf1 Bc8 c4 Kd8 b4 a5 c5 d5 b6 e5 f6 a4 b5 e4 b7 d3 g7 d4 g6 e3 c6 f3 b6 e2 Rh3 f2+ Kd2 e1N Qf3 a3 Qf4 a2 Qg4 Be7 Na3 Bf5 Ne2 Nc2 Rh2 Ra6 Nf4 Nb4 c7+ Kd7 Be2 f1B c8N Bg2 Bd1 Ra4 Bb2 N8a6 b8R Bb7 Nc2 Kc6 Ke1 d2+ Ke2 Bc5 Qh3 Kd7 Qc3 d3+ Kf1 Be3 Ne7 Bc6 b7 Kc7 Bg4 d1N Bc1 d2 Ke2 Nh6 g8B Nb2 g7 Nc4 Neg6 Nd6 Nf8 Ne8 Bc4 Bd5 g8B d1B+ Kf1 B1f3 Bd2 Bf7 Qb2 Bh5 Bgd5 Rg8 f7 Rg6 Bb5 Rd6 Bd3 B3e4 Ke2 Bh1 Rc1 a1B Qh8 Bf6 Ra1 Bh4 Kf1 Bg5 Bd1 Bfg4 B5f3 Nf5 Ke2 Bh3 Rd8 Nfg7 b8B+ Kb6 Ba7+ Kc7 Rb8 Bf5 Bd4 Bg2 Bf6 Bh1 Bg4 Bb7 Bf3 Nd5 N4g6 Rg4 Nf4 Ndb4 Bfe4 Bbc8 Ba8 Bb7 Ra2 Bfc8 Ra5 Bf5 Ra1 Rg2+
N1qbR1B1/B4N1b/4qR1B/1b4n1/Q1q2B1B/2pk1q1P/3n2N1/1K1R1b1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 dxc4 Ra3 exf4 Ra1 g4 Nh3 h5 Kf2 a5 Ke1 Ra6 Rh2 Rg6 Ng1 Rg5 hxg5 h4 Rh1 h3 Nc3 h2 Nb1 Rh3 gxh3 Qd6 Qb3 Qd4 Qd1 Qd8 d4 Kd7 Kd2 Kd6 Kc2 Kd5 b4 Ke4 e3 f5 d5 c5 g6 f3 b6 c3 g7 f2 b7 a4 b5 c4 b6 a3 d6 a2 d7 g3 Na3 g2 Nf3 g1Q Nh4 f4 Bg2+ f3 Nb5 f1B Nc7 Na6 b8B Be7 b7 Nc5 Ba7 Nh6 b8B Nb3 g8N Nf7 Nh6 Nd2 Na8 Qf2 Bf4 Ng5 Nf7 Qg3 Rb1 a1Q Rb6 Qa6 Rf6 Qe6 Rg1 Qe8 d8B Ba6 Bh1 Bb5 Ng2 f2 Qg4 Be2 Rd1 f1B Qh4 Qf3 Qg4 Nb3 Kb1 Qf8 Bd2 Kd3 e4 Qg8 e5 c2+ Ka2 Qc8 e6 c1Q Qh4 Qc3 Kb1 Qb4 Qg4 c3 Qh4 Qbc4 Qg4 Bd6 e7 Bc7 e8R Q4e6 Be7 Bd8 Qh4 Ne4 Bh6 Ng5 Qa4 Qcc4 Bd6 Qf8 Bg3 Qfc5 Bh4 Qcc8 Bf4+ Nd2+ Ka1 Qg3 Ne3 Bh5 Bd5 h1N Ng2 Qf3 Bab8 Q4c5 Ba7 Bg6 Ka2 Bh7 Ka1 Ke2 Ka2 Qc4+ Ka1 Nde4 Kb1 Nd2+ Kc1 Kd3 Nh8 Qb6 Bg8 Ng3 Nf7 Qbe6 Re1 Nde4 Kb1 Nh1 Rd1+ Nd2+
n1kbN2R/B5Q1/Rp2n3/rRN1BPn1/R5p1/3Nr3/3BqRbb/4K2r w - - 0 1 illegal: No possible last move
3q2q1/r3R3/4Bk1n/N4p1B/1qN1R1pn/KB2Q3/1N1RRPbr/4b1Rr w - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 dxe5 Be7 a4 Bd6 axb5 Bf8 g4 Qe7 g5 Qf6 h4 Qb6 h5 Qf6 h6 gxh6 g6 Qd8 Bg5 hxg5 Kd2 Ke7 Kc3 h5 Kb3 f5 e4 a5 c4 d5 b6 a4+ Ka3 d4 b7 h4 c6 d3 c7 h3 e6 h2 g7 d2 c5 Nc6 b8N Rh3+ Qf3 d1Q e5 Q8d4 Ra2 Qd7 Nd2 Qc2 Nc4 Rh4 Nh3 Qd4 Be2 Bb7 c8B Qd7 Nf4 Qcd2 Qe3 Q7d4 Rg1 h1Q Bh5 g4 Nd3 Qf3 Ndb2 Nh6 g8B Qdf4 Bgf7 Nd4 c6 Qg5 c7 Qff4 Bd7 Nf3 c8R Be4 Rd8 Rh2 Bc8 Qd1 Rd2 Ra7 Re2 Nh4 Bg8 Bg7 Nc6+ Kf8 Bd7 Bg2 N6a5 Ke7 Bgf7 Bf6 Bc8 Qg8 Rd2 Kf8 e7+ Kg7 e6 Bc3 e8R Kf6 e7 Qe4 Re2 Be1 Bce6 Qf4 Rb8 Qdd6+ Rb4 Qdd8 e8R Qfd6 Re7 Q6b6 Ra1 Qbd4 Rd1 Q4b6 Ka2 a3 Rdd2 Qb5 Kb3 a2 Ka3 Qbb6 Ne5 Qb7 Re4 Qbb8 Nec4 Qbd6+ Ka4 a1R+ Kb3 Rb1 Ka4 Q6b6 Ka3 Qb4+ Ka2 Bh1 Be8 Qf8 Rg3 Qg8 Ba4 Rd1 Bb3 Rc1 Rd6 Bc3 Rg2 Rf1 Rd1 Be1 Rdd2 Rg1 Rg3 Bf3 Rg2 Rgh1 Rg1 Qc3 Ka3 Bg2 Rd3 Qd2 Rd6 Qc3 Rdd2 Qb4+
2N5/3RrpK1/P1R2bBN/2B1N1qr/3N1n2/2Rr4/k1Nr2p1/br1BQb2 w - - 0 1 illegal: No possible last move
1r1r1q2/K1R1nN1k/3N3N/5rp1/1b2RB2/1PN1q2b/R2p3B/B1qq1Q1N w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 exf5 b5 axb5 Nh6 g4 Nc6 g5 Nb8 f6 Ng8 Be2 Nc6 Bg4 hxg4 f5 Qa5+ Kf2 Kd8 Ke2 Kc7 g6 Nd8 Kf1 Nf7 gxf7 Kd6 Kf2 Qb6 Ke1 Qd8 Kf2 Ke5 c4 d5 h4 a5 c5 g5 c6 a4 h5 a3 h6 a2 h7 e6 b6 d3 Ke3 g3 b7 d2 b8B+ Qd6 c7 g2 b3 Ra3 Nh3 g1R Nc3 Rg2 Re1 Ra5 Nf2 Ba6 c8N Bf1 Nh1 Qc7 Nd6 Bg7 f8N Qc8 f7 Kf6 Kd4 Ne7 Ng6 Bf8 Re4 Kg7 f6+ Kh6 Qe1 d1Q+ Bd2 Rh2 Ne5 Bh3 Qf1 Qe8 Rc1 a1Q Ng4+ Kg6 Rc2 Qac1 Ra2 Qd8 Nh6 e5+ Ke3 Rg8 h8N+ Kh7 Kd3 d4 Kc4 d3 Bf4 Ra8 Kb5 d2 Bc7 Rc8 Kb6 Rf2 Ka7 Rb8 Bh2 Rf5 Bf4 Bg7 f8R Qe8 Rf7 Qf8 Bb6 Rd8 Bg1 Rb8 Bgh2 Rd8 Rd4 e4 Rc4 e3 Re4 Ng6 Rb7 e2 f7 e1Q Rd7 Ne7 Rc7 Qe8 f8B Qe3+ Kb7 Bf6 Bg7 Qf8 N8f7 Bd4 Ka6 Bc5 Bd4 Bb4 Ka7 Rh8 Qe1 Qe8 Na4 Rb8 Qf1 Qef3 Ba1 Qe3+ Rc5 Qg8 Nc3 Qg7 Ndb5 Rhd8 Nbd6 Rb6 Rc6 Qf8 Rc7 Rbb8+
1Nb1Bq2/1k1N2Rr/r1R2p2/nB4qR/rN2n2p/N4QP1/B2NK3/1r4q1 w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 a4 Bg7 axb5 Be5 b3 Bg3 hxg3 e5 Ba3 e4 Bd6 e3 Bf4 gxf4 Qc2 exf2+ Kd1 Nc6 Kc1 Nb8 Qd1 Qd7 Bh3 Qe7 Bf1 Qd8 e4 Kd7 d4 a5 Kd2 h5 b6 c5 b4 a4 b7 Kc7 e5 a3 d6+ Kc6 g5 c4 e6 f3 d7 a2 b5+ Kb6 d5 f6 e7 Nh6 e8B Ra5 g6 Nc6 b8N Ra3 d6 Nf5 g7 Na7 g8B Ra5 Na3 Rh7 Rc1 Qe7 d8R a1R d7 Kb7 b6 c3+ Kd3 c2 Ba2 Ra6 Kd2 Qe4 Bb5 f1Q Rh3 f2 Nf3 Qg4 Rh1 Qfh3 Ke2 Qg5 Nd2 f1R Rh2 Rh1 Qf1 Rg1 Qf3+ Nc6 Rh1 Nd6 Rh2 Ka8 b7+ Ka7 Rh1 Ne4 Rh2 Qhf5 Rh4 Qg8 Rg4 Rh1 Rg7 Rh4 Rh1 c1Q Rh2 Qb1 Rh1 Qg4 Rc1 Na5 Rc6 Qf8 Rc5 Qe7 Nc6+ Kb6 b8N Qg1 Ne5 Nd6 Rc1 Rb1 Rc5 Bb7 Rdc8 Qf8 d8N Qf5 Rd5 Ra4 Ndc6 h4 Nb4 Ne4 Ned7+ Ka7 Rcc5 Bc8 Rc6 Kb7 Re5 Qf4 Rh5 Qg5
b2B4/2r1Q1B1/n1Npq3/b2Rp1Nb/1q3B2/2q3P1/1B2Rnk1/N1RKb1B1 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 g6 e5 f6 exf6 Kf7 Ra4 Ke6 f7 Ke5 Ra1 Kd6 g4 a5 f4 Ba6 f5 Bc8 f6 Ra7 Bc4 Rc7 Be6 Rc3 Bf5 Rg3 hxg3 gxf5 b4 Kd5 c4+ Ke4 b6 h5 b7 e6 g5 a4 c5 a3 b5 f4 b6 h4 c6 h3 c7 a2 g6 h2 g7 f3 Nh3 d3 Bb2 Nh6 g8R Rh7 Rg5 Qe8 Rd5 Na6 b8B Bb7 c8N Ng4 Ne7 Nf2 Bc7 Ba8 Nc6 Bb4+ Nd2+ Ke3 f8B d6 f7 Ba5 Rc1 a1B b7 e5 b8B Qe7 Bd8 Qe6 Qa4 Rg7 Rg1 h1Q Ng5 Qh4 Rg2 Qb4 Bfe7 Qc3 f8B Rh7 Bf6 Rc7 Bh6 Qb4 Bfg7 Qc3 Kf1 Qb4 Nb3 d2 Qb5 d1B Qb7 Qc3 Qc8 Qb4 Qd7 Qc3 Qe7 Qb4 Ba3 Bc3 Bb2 Be1 Rh2 Bc2 Na1 Bg6 Nh3+ Ke4 Ba7 Bh5 Bad4 Nh1 Rhc2 f2 Bf4 Kf3 Ng5+ Kg4 Ke2 f1Q+ Kd1 Qd3+ Rd2 Qdc3 Nf3 Kh3 Re2 Be8 Bf2 Kg2 Ng5 Bh5 Bg1+ Nf2+
2qr2qk/K1B5/1P4p1/B2qn2n/b7/1n2QR2/1rBpqB1N/NN1BRR2 w - - 0 1 legal: proof: d4 b5 e4 h5 a4 c5 axb5 f5 exf5 cxd4 g4 hxg4 Bf4 a5 Bc1 e6 b3 a4 b4 Bd6 Ra3 Bc7 Ra1 Ba5 bxa5 Rh3 Kd2 Rh5 Ke1 Rh8 Kd2 Kf7 Kd3 d5 f4 e5 h4 g3 c4 g2 f6 a3 a6 g6 f5 a2 h5 Nd7 c5 Qa5 a7 Qd8 h6 Qc7 b6 Bb7 c6 Nf8 h7 Ne6 Qe2 Rc8 a8R Rd8 Ra3 Ne7 Bd2 Nc8 Ba5 Nd6 Qe3 Nb5 Be2 Qc8 c7 Ng7 Nf3 g1N Bd1 Bc6 Nh2 Nf3 Re1 Nh5 Rb3 Kf8 f7 Kg7 f8N Be8 Nd7 e4+ Ke2 Rf8 f6+ Kh8 f7 Ne5 Nc5 d3+ Kd2 Nd4 Kc3 d2 Kb4 Bb5 Rf1 Rfe8 f8B Ba4 Bd6 Re7 Bc2 d1Q Rd3 Rf7 Nb3 Rf2 Kc5 Qf3 Bd1 Rb2 Bc2 Qe6 c8B Qg8 Bg4 Qf5 Bc7 Qc8 Qh3 e3 Bgd1 e2 Qe3 e1Q Rc3 Kg7 h8B+ Kh7 Bf6 Qe2 Bh4 Kg7 Bf2 Kh8 Nc1 Nb3+ Kb4 Nc5+ Nb3 d4 Re1 d3 Rf1 d2 Rd3 Bc6 Re1 Be4 Kb5 Qd5 Rf1 Bf5 Re1 Bd7+ Kb4 Qf1 Re2 Nc6+ Kb5 Bg4 Qf4 Qf3 Nc3 Nb7 Ka6 Ne5 Ka7 Nc5 Qe4 Qf8 Rf3 Bd7 Qe3 Ba4 Rb1 Qf7 Rc1 a1Q Nb1 Qa2 Na1 Qh7 Re1 Qb5 Rf1 Qhg8 Be2 Qad5 Rce1 Nb3 Bed1 Qe2
2rKnB2/2N3R1/pq3n1N/r3q1R1/BbNR4/R5p1/1qp2P1R/1QbB2k1 w - - 0 1 illegal: No possible last move, all moves rejected
1rB2bnR/k2P1bpK/p1Q5/3q4/2R1r2q/2n2R2/BB1N2pN/1NBn1B2 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 c4 d5 cxd5 e5 a4 exf4 g4 hxg4 axb5 Qf6 Ra4 Qg5 Ra1 Qd8 Kf2 Kd7 e4 Kc7 d4 Kb7 h4 f5 c6+ Kb6 d6 g3+ Kf3 g2 h5 a6 d7 Bb7 c7 Qe8 d8B Qd7 c8B+ Qc7 d5 Bd6 e5 Bf8 e6 Nf6 e7 Ra7 e8B Bc6 h6 Nfd7 h7 Rg8 h8R Nf6 Qa4 Ne4 d6 Bb7 R1h3 Nd7 Bf6 Qc5 Bf7 Bd5 Bfb2 Ndf6 d7 Rb7 Ra3 Ka7 Rc3 Rb8 Rc4 Be6 Qc2 Nc3 Qe4 Qd5 b6+ Ka8 b7+ Ka7 Kf2 f3 Ke3 f2 Kf4 Ba3 Kg5 f4+ Kg6 f3 Rg3 Re8 Rgh3 Ng8 Kh7 Bf8 Qg6 Bg4 Qc6 Re4 Be6 Bh5 Rg3 Ra8 b8N Bf7 Rb4 Qd6 Ba2 Qd3 Rc4 Qd5 Be2 f1Q Bd3 f2 Nf3 Re7 Nh2 Qh1 Rf3 f1N Be2 Ne3 Bf1 Qa5 Qe6 Qd5 Nc6+ Kb6 Qf6 Re4 Na5+ Ka7 Qc6 Rb8 Nb3 Ned1 N3d2 Ne3 Bd3 Ned1 Be2 Qe1 Bf1 Qh4+
1RRR3R/1B1P3r/1n1kNK1r/2p2b2/Bp6/N2qN3/3p3R/B1nq1nQq w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 e5 b4 axb4 d4 exd4 c3 d3 Kd2 Ke7 Ke1 d2+ Ke2 Ke8 Kf3 d5 Bb2 d4 Kg2 d3 Ba3 Bc5 Bc1 Bd4 cxd4 Kf7 Kg3 Ke7 Kg2 Ke8 Kh3 Ke7 Kg4 c5 Kg5 b5 f4 b3 a4 b2 h4 b4 h6 g6 h7 Qf8 h5 Kd7 d5 Nc6 a5 Rb8 h6 Nd4 f6 Bb7 a6 Nc6 f7 Nd4 f5 Nc2 d6 Qe8 f8N+ Kc6 f6 Rd8 d7 Ra8 f7 Kd6 a7 Rb8 a8B Qe2 Nf3 Ne7 Rh2 Be4 Ne1 Ne3 Bb7 Bf5 Nc2 N7d5 Ra8 Nb6 Kf6 g5 Nba3 b1Q Ne6 g4 f8R g3 Bb2 g2 Rc8 g1N Ba1 Qf3 Be2 Nf1 Ne3 Qh1 Qc1 Qb3 Bd1 Ne2 Rd8 Qb1 Ba4 d1Q Rc8 d2 Rd8 Rg8 h8R Rg7 h7 Qd3 Rc8 Re7 Rhd8 Rg7 h8R Rh7 Bbc6 Rb7 Rab8 Rc7 Bb7 Rc6 Qb2 Nc1 Qd4+ Qd5 Qg4 Qh1 Qg1 Qdd5 Kg5 Ke7 Nc7 Rch6 Ne6 Qc4 Nd5+ Kd6 Ne3 Rh4 Kf6 Qd3 Ba8 Rh3 Bb7 R3h6+
3B4/1N2RRQr/p2N1bN1/P1pK2nk/B4pb1/1p1B1R1b/pp4r1/1R3R2 w - - 0 1 illegal: Other
1N2k1BR/4bR2/QR6/q3NnK1/qr6/Br1nB2P/2Rnn3/qRnrNb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 f5 e4 g5 d4 c5 b4 a5 h3 g3+ Kf3 g2 b6 a4 b5 a3 d6 a2 e5 c4 e6 c3 d5 c2 d7+ Ke7 b7 Ra3+ Be3 Nc6 b8B Nb4 Nd2 Ba6 Qe2 c1N Rh2 Qa5 d8R Nh6 b6 Rb3 Rb1 a1Q Qb5 Rg8 b7 Rh8 Nc4 g4+ Kf2 Rg8 Nf3 g1N Rd6 Rg7 Rb6 Q5a4 Nd4 f3 Kg3 f2 Kf4 g3 Nc2 g2 d6+ Kd8 Be2 f1Q+ Bf3 Rd7 Ne5 Qe1 Kg5 f4 Bd5 f3 Qc4 Rh7 d7 f2 Bd6 f1N b8N Nf5 Bdc5 Rh4 e7+ Kc7 d8R Rd4 e8R Be7+ Rf6 Qd2 Rd6 Rf4 Qd4 Be2 Red8 Nbd3 Rb6 Qda5 Rh8 Re4 Bg8 Rh4 Bd6+ Kd8 Ba3+ Ke8 Qc5 Rhb4 Qc3 N1g3 Qc4 Nf3+ Kg6 g1R Qa6 Re1 Rf7 Rd1 Ne1 Bf1 Rc2 Nge2 Kh5 Nd2 Kg6 Bf8 Kg5 Be7+
7B/2BR2nQ/1b4K1/1rrBqbNR/q2Pr1n1/N2N1n2/RB1k4/b2r1Br1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 f5+ Ke5 a5 g6 a4 d6 a3 g7 f3 b6 h3 d7 h4 b5 a2 b7 f2 b6 h2 Nh3 f4 Kf5 f3 Na3+ Kc3 e4 c4 e5 Bc5 e6 Nh6+ Kg6 Ra5 g8N Nc6 b8R Qe7 d8B Ne5+ Kh5 Neg4 b7 Bb6+ Kg6 Nf5 Ng5 h3 Rg1 h1Q Nc2 h2 Nh6 Rb5 Rg2 Ng7 Rg1 Re8 Nhf7 Qc7 e7 Qe5 Qe2 Be6 Na3 Qg2 Bc7 h1R Rd8 Qgh2 Rg2 Rg1 Rb1 a1B Qe4 Qh3 Bb2+ Kd2 b8B c3 Rd5 c2 Rd7 c1R Rh2 Qhg3 Rh5 Rcc5 Rc1 Qg2 Rc4 Qh3 Ra4 Qhg3 Nh3 Qg2 Nf4 Qh2 Ng5 Qg2 Be2 f1N Nd3 Nfh2 Bf1 f2 Ra7 Nf3 Ra4 Rf8 e8B Rf4 Bf7 Qh2 Qf5 Re4 Ra5 Qd5 Be5 Qc4 Bbc7 Qa4 Bf6 Qe5 Bg8 Ne8 Bh8 Ng7 Qf7 Nf5 Qh7 Ng7 Bh3 f1R Bg2 Ba2 Bd5 Rd1 Bf1 Bc4 Bc6 Bg8 Bd5 Be6 Nc2 Qc4 Ra2 Qa4 Na3 Bf5+
Bk1B2r1/1q3B1N/2rP2b1/qnbQ4/NB1q4/1Nq2r2/1B1nKb1R/nR5R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 c5 d4 Kc7 g4 h5 e5 f5 e6 a5 e7 a4 e8R c4 g5 f3 g6 f4 g7 h3 Qd3 a3 Rh2 f2+ Kd2 a2 Na3 f3 Qb3 c3+ Ke3 c2 Ne2 h4 Bb2 Ra6 Rb1 a1N Nc1 Bf5 Nc4 Nc6 d6+ Kb8 d7 Na7 d5 Bg6 b6 Nb5 b7 Nf6 g8B Ne4 Nb6 Nd2 Na4 Rc6 Bf7 Rg8 Bg2 f1Q Re7 Qc8 d8B f2 Qd3 Qg4 Nb3 c1B Bf3 Qfg2 Ke2 Q2g3 Re5 f1R Rh5 Bc5 d6 Rc7 Qd5 Rc6 Rh1 h2 Rh7 Na3 b5 h3 Ba5 Q4h4 Bb4 Qd4 Be4 Qgc3 Rh5 Ka7 b8N Rf3 b6+ Kb7 Rh6 Nb5 Nd7 Ka8 Nf8 Kb8 Re1 h1Q b7 h2 Nh7 Qhg1 Rf1 h1Q Rh2 Qg5 Rd1 Ka7 b8B+ Kb7 Bc7 Kc8 Bd8 Kb8 Bda5 Qd8 Rf1 Qb6 Rd1 Qb7 Bd8 Qhg1 Bh4 Qg5 Rdh1 Qd8 Be7 Qa5 Bf6 Nc4 Bd8 Be3 Bf5 Bf2 Bc8 Qba6 Bb7 Nd2 Ba8 Qb7
Q1B2rKN/1RrRN3/2n1Bb2/R1br4/rn4n1/1k1nnbN1/2N1N2P/4B1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 d4 a5 e4 g5 b6 c5 b7 f5 b5 f3 Kg3 f2 b6 c4 Qb3 c3 Qa4 c2 Bc4 f1R Bd2 c1N Nc3 Nc6 b8R Bg7 b7 Rh7 Nge2 Bf6 Be1 Rc7 Ra3 Nh6 e5+ Kd7 e6+ Kd6 e7 Qg8 e8B Nd3 Bd7 f4+ Kg2 f3+ Kg3 f2 Ne4+ Ke7 Ra1 Qg6 Qa2 a4 Be6 a3 Ba6 Bd7 Rd8 Bc8 b8N Bb7 Rb1 Ra7 Rb2 Ba8 Bac8 Ra4 Na6 Bb7 Qa1 a2 Nb4 Qg7 Nc2 Qg8 Qb1 a1N Qa2 Ba8 Rb7 Qg7 Kg2 g3 Kh3 g2 N4g3 g1R Rd6 Ng4 Rd7+ Kf8 d6 Ke8 Ne3 Nc2 d5 N2b4 Nc2 Qg8 Rf7 Qg6 d7+ Kd8 Rh7 Rg2 Rh5 Ke7 d8N Kd6 Nf7+ Kc5 Nh8 Rgg1 Qa1 Kc4 Rh7 Kb3 Rd7 Ra5 d6+ Rd5 Rb5 Bb7 Qa8 Qg7 Ra5 Qg8 Bc3 Ra1 Bd2 f1N Be1 Rg2 Rg1 Nfe3 Rf1 Ra4 Rf3 Bb2 Rff7 Rf2 Rg7 Rf7 Rh7 Nh6 Rg7 g4+ Kh4 Be5 Kh5 Bf6+ Kg6 Qf8 Nf5 g3 Kh7 g2 Nfg3 g1B Rb5 Nhg4 Ra5 Qe7 Kg8 Bf2 Rg5 Nc4 Ng6 Nd8 Nh8 Re5 Bf5 Ndc6 Rd8 Na7 d7 Qc5 Be6 Bf3 Rb5 Nc6 Rb7 Rd5 Rh5 Rd6 Re5 Qe3 Ra5 Rd5 Re8 N6e5 d8N Bg1 Nc6 Qa7 Ne7 Nc6 Bd2 Qf2 Rd8 Qg2 Rbb5 Bc5 Rb7 Nce3 Rd7 Qg1 Be1 Rf8+
2Qn3N/R1B5/br2B3/P3RRbk/1Bbr3q/Bb2K1Bn/rb2bN2/q6N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 f4 e5 g4 b5 d4 c5 a4 h5 f6 Kg6 g5 h3 f7 h2 d6 h4 d7 h3 f5+ Kh5 g6 e4 d5 b3 g7 b4 f6 c4 d6 e3 Ra3 c3 Qe1 c2 Qf2 b2 Kd3 b3 Ne2 Nh6 g8N Ng4 Nd2 b1R Nh6 b2 Ne4 Be7 f8B Nc6 f7 Bg5 Qf5 Rg8 Rg1 h1B Nf2 h2 Bh3 Bf3 Re1 h1B Qe6 Qa5 d8B Ba6+ Qc4 Rh8 Bc7 Nd8 d7 Rg8 Bd2 c1B Bg3 Rg6 Bdb4 Rb6 Bfc5 Ra1 f8R b1B+ Kd4 Bd3 Rf5 Ra2 Nf7 Bb2+ Qc3 Bd5 Nh8 B5c4 Be7 Bhd5 Bec5 Nb7 d8B Bf7 Bdc7 Nd8 B5d6 Bb3 Bf8 Bdb5 Ke4 Rab8 Qc6 Bfc4 Qd7 Rd6 Qc8 Rbb6 Kf3 Ra1 Ra2 Rd4 Ba3 Qc3 Bfb4 Qc1 Nc3 e2 Nce4 Qb1 Nh1 Qd1 Nef2 Qb1 Rf1 e1Q Rg1 Qe7 Re1 Qf6 Re5 Qg1 Bf1 Qh2 Bd3 Qh4 Be4 Qg7 Bd5 Qf6 Be6 Qg7 Nd3 Nf2 Ke2 Nh3 Kf3 Nf4 Ndf2 Be2+ Ke3 B5c4 a5 Bc1+ Rd2 Bb2 Rd1 Ra2 Rf1 Qg6 Rf7 Qb1 Rff5 Qa1 Rc1 Bcb5 Rcc5 B5c4 Rb5 Rc6 Rb7 Rb6 Ra7 Nh3+
3B2rn/k1N3b1/B1qBRP1n/RRR2Q1q/2r4b/1bN1n3/2b1N3/1b3bRK w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 a5 Kf2 h5 c4 e5 b4 d5 g4 Kd7 Kg2 Kc7 b6+ Kb7 f6 d3 b5 d4 f7 e4 c5 e3 f5 e2 f6 e1B g5 d2 g6 d3 g7 h3+ Kh2 a4 Ra3 h4 Nc3 Qe8 Nb1 Qc6 Qc2 d1B Bg2 d2 Bf3 Bf5 Nc3 Nd7 Nge2 Ne5 Rg1 Rc8 Kh1 Nh6 g8R Bg7 f8N h2 Ne6 Nef7 Re8 Rg8 Nc7 Nh8 Re6 Bg6 Ra1 a3 Qf5 a2 Ba3 Bc2 Bb4 d1B Ba5 Kb8 b7 Ka7 b8R Bb1 Bd5 Bb3 Be4 Qb6 Bb7 Qc6+ Qd5 Bgc2 Ba6 Rcd8 Qf3 Rd4 Qe4 Rc4 Qd5 Qe8 c6 Qh5 Qf5 Bf2 Na8 Be1 c7 Bf2 c8R Be1 Kg2 h1B+ Kh2 h3 Bd8 Bg2 Rc5 Bf1 Nc7 Bg3+ Kh1 h2 Rbb6 Qg4 Rbd6 Bh4 Rdd5 Qh5 b6+ Kb8 b7 Ka7 Rd1 Bd3 Rb5 B1c2 Rac1 a1N Rd2 Bb1 Ra2 Nc2 Raa5 Ne3 Na2 Rb4 Rcc5 Bdc2 Nac3 Rd4 N7d5 Rc4 b8B+ Ka8 Be5 Ka7 Nc7 Re4 Bf4 Rc4 Bd6 Neg4 Ng3 Be2 Kg2 Bf1+ Kf3 Ne3+ Kf2 Bg5 Nge2 h1Q Kg3 Qb7 Kf2 Qb6 Kg3 Bh4+ Kh2 Qg6 Kh1 Qh5 Ree5 Qb7+ Re4 Qb6 Re6 Qc6+
1q1B3Q/P2k1b1b/1n3R2/3r3n/r1N1Rr2/N2BnrN1/NBn2rN1/RKb5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 h5 g4 c5 f4 b5 d4 e5 Kd2 b3 f6 h3 g5 e4 f5 h2 a5 h4 a6 b2 Kc2 e3 d6 h3 f7+ Kd7 d5 e2 f6 e1N+ Kb3 c4+ Ka2 c3 g6 c2 g7 b4 Na3 b1R Qd4 Ne7 g8N Rh4 Nf3 Nf5 Ne7 Rb3 Bd3 Bh6 f8R Ne3 f7 Rf4 Bb2 c1R Nh4 Rd1 Nef5 N1c2 Re1 h1N Ng3 h2 Ng2 Rd2 Qf6 Rdf2 Kb1 Rc3 Qh8 b3 Nf1 Ng3 a7 Nh5 Ng3 Qe8 Re2 h1R+ Re1 Rhh4 Re2 Kd8 d7 Ba6 Re1 Bc4 Re2 Kc7 d8N Nd7 Nc6 Qb8 Nb4 Nb6 d6+ Kd7 Na2 Be6 Re1 Rc5 Re2 Rd5 Re1 Ra4 Re2 Rhf4 Re1 Kc6 d7 R2f3 d8B Kd7 Rg8 Rf2 Rg6 R4f3 Rf6 Bf4 Bc1 b2 f8N+ Ke8 Rf1 Bf7 Ng6+ Kd7 Re1 Bg5 Ne7 Bf4 Nc6 Bh6 Na5 Bg5 N5c4 Bh6 Nc3 Bg5 Ka2 b1B+ Kb2 Bh6 Na2 Nf5 Rf1 Ncd4+ Be2 Qe5 Be7 Rg8 Re1 Qb8 Bd8 Rg4 Nd6 Bd3 Ndc4 Nc2 Kb1 Bf4 Bb2 Bc1 Bf1 Rgf4 Re5 Be4 Bd3 Nfe3 Ree6 Bf5 Re4 Bh7
1B2qb1r/2b2RNb/4B2n/2n2rqP/2NQ4/KNRr2rr/1b2R2N/3kB1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Nf3 Rh7 e4 Kd7 d4 Kd6 Kd2 c5 Kc3 a5 Kb3 g5 h4 Rh8 h5 f5 b6 g3 b7 g4 Qd2 g2 Nh2 g1R Bh3 a4+ Ka3 g3 b4 f3 b5 f4 b6 g2 Ra2 f2 Nc3 c4 Ne2 c3 Qd3 f1Q Bd2 Qg5 Be1 Na6 b8R Bf5 b7 c2 Rc8 Rb8 Rb2 c1R Rc5 Rd1 e5+ Kd7 e6+ Kd6 e7 f3 Qc4 f2 Qc3 Rc8 b8B+ Rc7 Qd3 Bh7 Qc4 Nh6 e8N+ Ke7 Ng7 Kf6 d6 Re7 d7 Rd3+ Bc3 Qe1 d8N f1R Nf7 Ree3 Ne5 Rf4 Bc8 Rh3 d5 Rff3 d6 Rfg3 d7 Rf1 d8N g1B Ka2 a3 Ndc6 Rf4 Rb7 Rf5 Na5 Bf2 Rcc7 Bb6 Nb3 Ba5 Re7 Nc5 Qd4 Bd8 Rbd7 Bc7 Rg1 Qg4 Re8 Kg5 Rf7 Kh4 Nc4 Qf4 Nf1 Kg4 Rh1 Kf3 Nh2+ Kg2 Rf1 Qg5 Ng1 Qee3 Rd1 Kf2 Rd2+ Ke1 Rc2+ Kd1 Be1 Qe4 Rc3 Qc6 Re2 Qe8 Ka1 a2 Kb2 a1B+ Ka3 Rg4 Bd7 Rgg3 Be6 Bb2+
q1n1qR2/kP6/1N3r2/BrnK1n2/bRQ1b2n/3N1b2/2B1nb2/BNN1NR2 w - - 0 1 illegal: No possible last move
NbR1bB1k/2nnb3/r1B1Nn2/1Q4B1/1q4q1/3NBKRp/1q1r2P1/4R1Br w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 e4 Kf7 d4 Kg7 b4 a5 d6 h5 e5 c5 e6 f3 b6 f4 b7 a4 d5 a3 e7 a2 e8R h3 d7 c4 b5 c3 b6 c2 d6 h4 Ne2 h2 Be3 c1B Nd2 h3 Nc4 Ra6 Qd5 Qg5 d8N Nf6 d7 Be7 Qb5 Qg4 Ne6+ Kh7 d8B Bd7 Rb1 a1Q Rb3 Qb2 Rf8 Bd2 Nc1 Be8 Nd3 Nbd7 b8B Rg8 b7 Kh8 Rg1 h1R Nb6 Bdb4+ Be2 Bbd6 Ba7 Bb8 Ra3 Qb4 Na8 Qb2 Re1 Qb4 Rf7 Rg5 Rg7 Rd5 Rc3 Rd4 Rc8 Rdd6 Nb2 Rd2 Nd3 Qf5 Rg3 Qg4 Rg1 Qb2 Kf1 f2 Bf3 Qb4 Bac5 Rd1+ Ke2 f1N Bed4 Ne3 Re1 Nd5 Bg1 Nc7 Bce3 Bc5 Kf2 Be7 Be4 f3 Bc6 Bd6 Be7 Bc5 Bf8 Be7 Bb6 Rd2+ Ke3 Ba7 b8B f2 Bd4 Qb2 Bb6 Qgb4 Kf3 f1Q+ Bbf2 Bd4 Ba7 Be5 Be3 B5d6 Bg5 Be5 Ndf4 Qfc4 Nd3 Qg4+ Ke3 B5d6 Qb7 Nb5 Qb8 Qh4 Kf3 Bc7 Qb6 Bb8 Bfe3 Nc7 Qb5 Qhg4+
1B2bb1R/1K3P2/r3n1n1/1rp1B1RN/q1q2b2/1k1rN3/1B3N2/qBQ1BnR1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 e3 g4 h3 b6 h4 g5 c6 f5 e2 b7 e1B g6 a4 b5 a3 b6 h2 f6 a2 g7 h3 f7 Rh5 Bd3 Qd7 Na3 Na6 b8B+ Nc7 b7 Ra6 Bb1 Bg3 Bb2 Bf4 Nc2 e5+ Ke4 Kc5 d4+ Kc4 d6 c5 d5 Kb3 Qc1 Ne7 g8N Ne6 Nf6 Ng6 Ne3 Rh8 Nh5 Qa4+ Nc4 Rh6 d7 Ra5 d8B Bd7 d6 Be8 Kd5 e4 d7 e3 B8e5 e2 b8B e1R Bh4 Re3 Be1 Rc3 Ne3 Rd3+ Bbd4 Qc4+ Kc6 Qa4+ Kb7 Qc4 Nf3 Qa4 Rf1 h1Q d8R h2 Bb2 Qg2 Rh1 Qg4 Rg1 h1N Ng5 Ng3 Ne4 Nf1 Nf2 Qe2 Rd5 Qc2 Bh8 Qcc4 Rdg5 Rd6 Bhe5 Rda6 Ng7 Rh3 Rh1 Rf3 Rh8 Rg3 Nh5 Rh3 Nf5 Rd3 Ne3 Bh2 Qd1+ Qc2 Bb4 Bf4 Qe1 Qc4 B4c3 Rd5 Bd3 Nh2 Qd2 Rd4 Rag1 a1Q Bb1 Nf1 Qc1 Rd3 Be1 Rb5+
R1B3b1/nn1QN3/K1P1Bn1R/q1N5/p1r1r2r/4b3/B2BNB1k/1nnRb3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 d5+ Kb3 a5 Ka4 g5 b4 g3 c4 Kg4 e6 f5 b6 d3 Kb5 f4 e4+ f3 e5 g2 h5 Kg3 e7 g4 e8B d2 b7 a4 c5 d4 e6 f2 c6 d3 e7 Be6 h6 Nf6 h7 Na6 b8N Bg8 Be2 f1N Rh6 Nc5 Bd7 Nb7 e8B Bd6 Bh5 Kh2 Bc8 Bg3 Nd7 Be1 Nc3 g3 Nd5 Qc7 Nc5 Qa5+ Kc4 Rb8 b5 Ra8 Be6 Re8 B2g4 Re7 Ne2 g1B b6 g2 Bh3 Be3 Bhf7 g1N Bc8 Re6 Ne7 Re5 Bb2 Re4+ Bd4 Qa7 Kb5 Qa8 Nf4 Ne2 Ba2 Nc1 Bce6 Qd8 Ka6 Qd5 Qg4 d1R Ne2 Nd2 Bc3 Nb1 Bd2 Qg5 Bc8 Qh5 Qd7 Rc4 Be6 Re4 Bc3 Rd2 Ba5 Rc2 Bb4 Rcc4 Bd2 Na3 Rb1 Nb5 Ra1 Na7 Rb1 Nb3 Rd1 Nc1 Bc3 Nd6 b7 d2 b8R Nb7 Ra8 Nd3 Rb1 d1N Bd2 Nc3 Rd1 Nc1 Qd5 Bf7 Qd3 Nb1 Qd7 Rd8 h8B Bg8 Qe8 Rdd4 Qd7 Rh4 Bg7 Rde4 Bh8 Ne8 Bb2 Nf6 Bd4 Bg5 Bf2 Be3 Qd3 Qe5 Qd8 Qc3 Qd7 Qa5+
NR1nKq1B/b1RRB3/B5n1/1b1br1N1/b1Nb3q/2B1r2p/1r2BQ1P/7k w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 c4 Ke6 d4 Kf5 c6 e5 c5 a5 b6 h5 c7 e3+ Kf3 e4+ Ke2 Kg4 b7 f5 d5 a4 d6 h4 d7 h3 c6 a3 Qe1 a2 Nf3 Ra5 Bd2 Re5 Bc3 Ne7 Qf2 Ng6 Nbd2 Bc5 Nc4 Ba7 Rc1 a1B Ng5 Qf8 d8B Be6 c8B Bd5 c7 Nc6 Be7 Nd8 b8B Rh6 Ba6 f3+ Ke1 f4 c8N e2 Kd2 e1R N8b6 e3+ Kd3 e2 Kd4 Rh7 Kc5 Re3 Bh8 Bd4+ Kd6 Rh5 Rc2 Rb1 Kd7 e1Q Na8 Rb2 Be2 Qb4 Rd1 Qe1 Nf7 Rhe5 Ng5 Qb4 Bc7 Qe1 Ba5 Qb4 Qg1 Qe1 Bc3 Qh4 Bf1 f2 Be2+ f3 g3 f1B Qf2 Kf5 g4+ Kf4 Rdd2 Qf6 Ke8 Bg2 Qg1 f2 Rc1 f1B Qf2+ Bgf3 Rdd1 Bdc5 Rc2 Bc6+ Rd7 Ba4 Nf7 Bd4 g5 Nf8 g6 Ke4 g7 Ng6 g8R Kf4 Qe1 Bd5 Bd3 Kf3 Be2+ Kg2 Ng5 Kh1 Qf2 Ra2 Rg7 Qf3 Rb2 Qf6 Rb8 Rb2 Bd1 Bd3 Be2 Qff4 Na5 Bdb5 Nc4 Qf3 Rh7 Nf7 Rh6 Nf4 Rf6 Nd8 Rc6 Ng6 Rcc7 Qf8+
rRB4q/1rb1RN2/3QR3/kn2Rq1p/1n4qP/1b1BBNb1/3b1N2/1K2R1b1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 fxg4 h4 Kd7 f4 Kc7 d4 h5 Kd2 a5 c4 e5 Kc2 g5 f5 a4 c6 Kb6 f6 e3 c5+ Ka5 b6 a3 b7 a2 c7 e2 f7 e1B d5 e4 c6 e3 d6 e2 d7 g3 Qd3 g4 Nf3 g2 Qd4 g1Q Nh2 g3 Nd2 g2 Ndf3 Nf6 Qd6 Nd5 Ng4 Bg3 Be3 e1B Bd3 Bd2 Re1 a1Q Nf2 Na6 b8R Qdf6 d8N Be6 c8R Rh7 Rc7 Qf5 Re7 Qh8 c7 Nc3 c8B Nb5 Kb1 Nb4 Rh3 Bg7 f8R Bb3 Rfe8 B7e5 Re6 Re7 Nf7 Rb7 R8e7 Bef4 Qd8+ Bc7 Qd6 Qh1 Rh2 g1B Rg2 Qhh3 Re5 Bf4 Rg6 Qhg4 Rge6 Bg3
1qN1N2N/rb2BNr1/2Bbb1Q1/1n4PR/2r4b/2p2q1k/1KR3nN/1RB3b1 w - - 0 1 illegal: No possible last move, all moves rejected
1N3qrB/K5B1/Nn3N2/bkp3q1/R1N3Nn/2qR1b1n/R1q1PQ2/q2r1B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 f5 d4 a5 b4 h5 d6 a4 g5 f3 Ke3 a3 g6 h3 g7 h2 b6 Kc6 d7 f4+ Ke4 f2 d5+ Kb5 Kd4 f3 d6 a2 b7 h4 Qe1 h3 Bh6 Qg5 d8R Ne7 g8N Ng6 d7 Nh4 Nf6 Rg8 Bg7 Bd6 Nd2 c5+ Kc3 Ra6 Nc4 Bc7 Kb3 Ba5 Ka3 Nc6 b8N Na7 Bh8 Rb6 Na6 Bb7 Ra8 Nc8 d8B Bc6 Rd1 Rb8 Rd3 Nb6 Bc7 Rbd8 Be5 a1Q+ Kb3 Be4 Bb2 Kc6 b5+ Kb7 Bg2 Qd2 Rd5 Qb1 Nb4 f1Q Nh7 f2 Nf3 Nc8 Ka4 Bb6 Rg1 h1N Nfe5 Qg5 Ng4 h2 Bbg7 Qbc1 Ra5 Qc3 Na6 Bc7 b6 Kc6 b7 Rd6 Qd2 Qb1 Qd4 f1Q Bh3 Qf7 Nhf6 Nf2 Re1 Qbb2 Ra1 h1Q Ra2 Qha1 Bf1 Nh3 Qf2 Qf8 Rd2 Bf3 b8N+ Kb7 Rd4 Qbc2+ Kb5 Bd8 R5a4 Ba5 Re4 Ka7 Re3 Rd1 Rd3 Kb7 Nb4 Kc7 Ka6 Nb6 Ka7 Nd5 Nbd7 Nb6 Na6+ Kc6 Ndb8+ Kb5
1q1n2qN/r3Q1rR/b2p4/k1N1R1P1/rb2Nb2/2BB3K/B4R2/1bbN1N1n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 e5 b4 h5 g4 a5 f4 d3 Kf2 d6 Kg2 Kd7 g5 Kc7 c5 d2 f6 a4 f7 a3 f5 a2 f6 e4 c6 Kb6 c7 e3 Nf3 e2 Nc3 e1B Nh2 Nc6 Qe2 d1B Bd2 Ra4 Qe7 Nh6 Bd3 Rg8 Nf1 Bc2 Nd1 Bb1 Bc3 Ba6 c8B Ng4 Be6 Rg7 Kh3 Qb8 Rh2 Bd2 Re2 Nd8 Re5 Bc1 Bd5 Rg6 B5c4 Bg7 f8R Bf4 f7 Bf6 Rh8 Rg7 f8N Bc1 Ng6 Nf2+ Kh2 h3 Rh7 h4 Nh8 Nh1 Bg8 Bc2 Rb1 a1B Rb2 Bb1 Rf2 Bab2 Ba2 Ba3 Qe8 Ka7 b6+ Kb7 b5 Bb4 Rc5 Bd4 Re5 Bde3 Qf8 Rd7 Qe7 Bf4+ Kg1 h2+ Kg2 Rc7 Kh3 Rd7 Qf6 Rg7 Qe7+ Ka8 b7+ Ka7 Rc2 Kb6 Rf2 Ka5 b6+ Bb5 Kg4 h3 Kh4 Qa7 b8N Qc7 Nd7 Qb8 Nc5 Ba6 b7 Ng3 Be4 h1Q Kg4 h2 Bd3 Qd5 Kh3 Qg8 Ne4+ Kb6 Rg2 h1R+ Rh2 Rg1 Rg2 Nh1 Rf2 Qc7 b8N Qc8+ Re6 Ka5 Nd7 Qb8 Ndc5 Rg2 Kh4 Rh2+ Kg4 Rh6 Re5 Rf6 Kh3 Rff7 Qe6 Rb7 Qe7 Ra7
b3BrRr/1k1N2nb/p4q1r/1N3R2/1B1QN1q1/b1bN4/1BPK4/1b1nRN2 w - - 0 1 illegal: No possible last move
qN5n/q1r1P2r/1RR1K1N1/BQ1r1NpB/2b5/q2rRn2/1b1r2k1/RRB5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 g5 b6 a5 b7 a4 b5 c4 b6 c3 h5 f3 Ke3 g3 h6 c2 h7 g2 Be2 a3 Nh3 g1Q+ Kd3 a2 Kc4 f4 Qd3 f2 Na3 f1R Bh5 f3 Nf4 f2 Ng6 Nd7 b8N Bg7 b7 Rd1 Qe2 f1R e5+ Kc7 e6 Kd6 e7 Rf5 Rh3 Nh6 Re3 Rd2 Rb1 a1Q Qf1 Rhf8 h8R Nf7 Rh6 Rh8 Qd3 Ra7 Qb3 Rh7 Qb5 Qb2 Ra1 Nh8 Rb1 Kc7 Ra1 Ne5+ Kc5 Rh2 Nc4 Ra3 Nd6 Nf3 Kc4 Re5 Nf5 Rd2 Nd7 Qf2 Qa6 Qe2+ Kc5 Nh4 b8R Ra4 Ngf8 Rd1 Bd2 Ra3 Rbb6 c1R+ Qc4 Rcc3 Rhd6 Rcc1 Ng6 Ba6 Re6 Qa8 Nb8 Qa2 Rbb1 Rcc3 Bc1 Qeb2 Rb6 Rcd3 Qa4 R1d2 Qc4 Ra4 Qb3 Bc4 Qb5 Kc8 Kd6 Ra7 Qb4 Rc7 Qa4 Re4 Qb5 Be5+ Ke6 Q2a7 Qb3 Qba3 Qa4 Ba6 d6 Bc4+ d5 Rf4 Qb5 Bb2 Nf8 Rfd4 Ng6 Rc5 d7+ Kc7 Rd6 Rc6 d8R Rc5 Qa4 Rc6 Rc8+ Kb6 Rc7 Kc5 Rb7 Rc7 Rbb6 Bb5 Qa5 Kc4 Qa6 Kc3 Qa4 Bc4 Qb5 Kc2 Rdc6 Nf3 Kf6 Kd1 d6 Rd5+ Ke6 Re2 d7 Ke1 Ra6 Kf2 d8B Rcd7 Bc7 Kg2 Ba5 Rc7 Rab6 Red2
1bQb3B/2pb1KR1/8/1qNR4/3B3k/q1N1R1nB/Pq4bR/1RbNrnr1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 b5 f4+ Kh4 d4 g5 d6 g3 d7 g2 Ke6 g4 f6 b3 f5 b4 h3 b2 d5 g3 f7 b3 d6 Na6 f6 Bh6 f8R Nb4 f7 Nc2 Be3 Qe8 Bb6 Nf6 Qd2 Ne4 Be2 Rg8 Bc4 Ne3 Bd4 Nf1 Ne2 g1B Rh2 g2 Nbc3 b1B Nd1 b2 Nec3 Neg3 Qe3 Bh7 Rb1 Be4 Bb3 Rg4 Rg8 Beb7 Qd3 Bc1 f8N Qh5 Bc2 Qb5 Kf7 e5 d8R e4 d7 e3 Qf5 e2 Rg7 e1B Re8 Bf3 d8R Bd7 Qe6 Bge3 Re7 g1Q Bf5 Bg2 Qa6 B1f2 Ne6 Bg5 Nc5 Re4 Ree8 Re1 Qc8 Ra6 Re3 Rg6 Rde8 Bf6 R8e5 Bd8 Rd5 Qh1 Ra1 b1Q Bg4 Qc2 Rb1 Qcb2 Bf5 Kh5 h4 Rg5 Bg6+ Kg4 h5 Bg1 h6 Qa3 Rh3 Qh2 h7 Bf2 Rh6 Bg1 Bh5+ Kh4 h8B Bh1 Nb3 Ne4 Rd3 Qhb2 Be3 Kg3 Bg4 Bf2 Rh2 Bf3 Bd2 Ba7 Bh3 Bb8 Be3 Kh4 Nc5 Rg1 Bd4 Bg2 Re3 Neg3
2N1Nnk1/r2qK3/1Qqr3b/5R2/rBR1b1n1/R1B1N1p1/1rP5/1B1nb1NN w - - 0 1 illegal: No possible last move, all moves rejected
1BqN1nR1/qRb1Rb2/2B3Q1/n2BB1N1/rr2q2b/P4n1n/5p2/1KB2k1N w - - 0 1 illegal: No possible last move
B4KR1/1RBQNr2/3q1pr1/2Bbq2N/4b1Rn/B1q1b3/P1k1N2B/q2n2r1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 b5 d4 g5 d6 c5 d5 g4 d7 b3 h6 f6+ Ke6 f3 Kf7 g3 h5 b2 h7 f2 d6 g2 h6 b4 Nh3 g1R Nc3 b1Q Bg2 f1Q e4 b3 e5 b2 e6 Qe1 e7 Ra7 e8R Nc6 Ne2 Na5 Nhf4 Bb7 Nh5 Ne7 Rh4+ Qe4 Rg4 b1B Qa4+ Kd3 Ba3 Rg8 h8B c4 h7 c3 Bg7 c2 h8N c1Q Ng6 Nf5 Ne7 Nh4 Bf3 Bc2 Rb1 Qc3 Rb6 Ba8 Rb7 Qee5 Bh6 Qdc7 d8B Q1a1 d7 Qcd6 Bc7 Nc4 d8B Nb2 Bf4 Bh6 Qd7 Nd1 Bh2 Rg6 Rg8 Be3 Kf8 Bb3 Bb6 Bd5 Bbc5 Kc2 Bc7 Be4 Rb4 Bac6 Rb7 Bcd5 Rb8 Bc6 Qd8 Qc1 Ba5 Qdd5 Nf5 Bd3 Bh1 Rd7 Bc7 Q1a1 Rb6 Rh7 Ne7 Qdd6 Qd7 Bb7 Bd5 Be4 Rb5 Ba6 Ba8 Bab7 Rb1 Bbd5 Rb7 Rf7+
3k1q2/R2n4/rnP2NnK/rBbN3p/bB1q3q/B1QN4/3R1n2/N1N2Rb1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 e5 Kg4 a5 Kh5 h3 g4 d3 c4 h6 f4 d2 b4 h2 g5 e4 c5 a4 b6 a3 b5 d4 c6 e3 b7 a2 f6 e2 b6 e1Q g6 d3 f5 Qee7 g7 Ra3 Ne2 Ra5 Qb3 d1N Nd2 Qdc7 f7+ Kd8 Qc3 Qa3 Nb3 Qc5 Ba3 d2 Nec1 Q7d6 Bb5 Ne3 Rf1 Be7 f8B Nd5 f6 d1N f7 Nd7 b8N Nf2 b7 Qd4 Na6 N5b6 b8N Bb7 Nc7 Ba6 Nd5 h1Q+ Qh3 Qhe4 Qc3 Q6c5 Rd1 Qh4+ Kg6 Qcb4 Rd2 Bc5 Bd6 h5 Bf8 Ngf6 g8N N6g4 Ngf6 Nge5+ Kg7 Rg8+ Kh6 Ng6 Bd6 Re8 Bf8 Re3 Bd6 Re5 f8R+ Re8 Rf7 Re3 Rb1 a1B Bf8 Bb2 Na1 Rf3 Bd3 Bc4 Na6 Bb3 Bb5 Ba4 Rg7 Nb8 Ra7 N8d7 Nf4 Re3 Nc7 Ra6 Ncd5 Re5 Nfd3 Rf5 Ncb3 Rg5 Rf1 Bc1 Re2 Bf4 Rb2 Bh2 Nbc1 Bg1 Rd2 Qb1 Ne1 Qf5 Ned3 Qff4 Bb4 Qd6 Ba3 Qe7 Bb4 Qf7 Bd6 Qf8+ Kh7 Qc4 Ba3 Bd4 Ne7 Re5 Bdb4 Bc2 Ba4 Rea5 Ned5 Bc5 Bb5 Bb3 Ne7 Qcd4 Ned5 Qf7+ Kh6 Ba4 N3f4 Qe7 Nfd3 Qf8+
N5K1/8/BBPR1B1N/1BpRN1qQ/bk1r4/b1n1q2r/1Brb3R/b4nn1 w - - 0 1 illegal: No proof kernel
4n3/2qr4/BbP2QNr/2pN3K/knq1r1n1/1N2RNB1/q1B1Rr1N/5b1R w - - 0 1 illegal: No possible last move, all moves rejected
1n2Rr2/4N1nQ/1npq2rR/RPB3r1/NB4k1/1BnN4/1K1qN3/N3q1bb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 a5 Kc2 f5 g4 h5 e4 a4 b4 a3 e5 a2 g5 h3 d6 Ke6 g6 f3 b6 f2 b7 h2 b5 h4 g7 h3 d7 f4 d5+ Kf5 d6 f3 e6 Kg4 e7 Nf6 e8R Rh6 g8N Nh5 Ba3 Ng7 Qc1 Rg6 Bc4 f1Q Nc3 f2 Ne7 Qe1 Bb3 f1N Nge2 Ne3+ Kb2 Qd2+ Qc2 Nd5 Bb4 Nb6 Na4 c6 Bc5 Qc7 d8B Bf5 d7 Qcd6 Bc7 Be4 d8N Bg2 Nf7 Be4 Rhf1 h1Q Rf6 h2 Re6 Rg5 Rh6 Qhe1 Bd8 h1N Bb4 Nd5 Bb6 Nf2 Be3 Nb6 Bec5 Na6 b8N Bh1 Nd7 Ne4 Nc8 Nb8 Ne7 Q2d5 Qb1 Nc3 Qh7 Qd4 Nd8 Qd3 Ne6 Qdd1 N6d4 Qdd2+ Nc2 Rg6 Rc1 a1R Rb1 Ra3 Ra1 Rg5 Nc8 Be7 Ra2 Bf6 Ne7 Bd4 Ra1 Bg1 Ra2 Rg6 Ne5+ Kg5 Nd3 Kg4 Nc8 Ra7 Ra1 Rf7 Ne7 Rf8 Ra2 Na8 Nb6 Ra7 Ra5 Rg5 Na4 Nb6 Ng8 Raf7 Ne7 Rf4 Nd4 R4f6 Ne2 Q2f4 Na1 Rfg6 Nc2 Qe3 Na1 Q3d2+
1N1B3B/bp4rq/2n2nNr/NR1n1Q2/1RbRN2P/1q2rbrB/1k5K/4N3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 a4 Kf6 f4 g5 Kf2 c5 Kg2 e5 d4 e4 a5 e3 d6 c4 d5 b3 d7 g3 a6 e2 d6 e1R a7 g4 Ra6 c3 Qf3 c2 Nc3 b2 Qd3 b1B Ra4 Rh6 Rd4 Re3 Bb2 c1Q Nf3 Qb6 d8N Ba2 d7 Bc4 Ne1 Qb3 Nc6 Qb1 Na5 Nc6 d8B+ Be7 Kg1 g2 Kh2 g1N Bh3 Ne2 Rg1 Rb8 a8R B8e6 Ra6 Bed5 Rb6 Bf3 Rb5 Rc8 Qe4 Rc7 Ba1 Nc1 Rg2 Na2 Rb2 Nab4 Qd3 Nd5 Ne4+ Kf7 f6 Ke6 f7 Ngf6 f5+ Ke5 f8N Bc5 Rb4 Ba7 Qf1 Rg7 Nd7+ Kf4 Nb8 g3+ Kg1 g2 Kh2 Ke5 Rb5 Q3c2 R2b4 g1R+ Qf2 Qcb3 Qc2 Nh5 f6 R1g3 f7 Nf6 Qf2 Q1d3 f8N Qdc2 Nc3 Qg6 Ne4 Qh7 Nd6 Nh5 Ne4 Rc7 Bb2 Bfe2 Rd1+ Qc3 Rb1 Kd4 Qf5 Bf3 Ra1 Rd7 Ng6 Re7 Bc1 Qb3 Bd2 Rd7 Rd1 Rc7 Ng2 Kd3 Bc3+ Kc2 Bh8 Rg7 Rd4 Nhf6 Ne1+ Kb2
Rr1b3R/2nk3B/q3nnbp/8/2r4n/n3QP2/RRNK1B1B/bR3nNN w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 e5 d4 c5 g4 a5 f3 h6 b6 c4 g5 a4 b5 h3 g6 h2 d6 a3 g7 a2 b7 e3 d5 e2 b6 e4 Bg5 c3 Bf6 c2 Bh3 c1N Qd4 Nb3 Qe3 Bf5 Na3 Na6 b8B Nd4 b7 Ne6 Bh4 Kd7 Nc2 Qf6 Kd2 e1N Bf2 Bg6 Bf5 Ng2 Bc7 Be7 b8R Rh7 Rb2 Nh4 Rab1 a1B Ra2 Rc8 Rbb2 Rh8 Bb8 Kd8 d7 Rc4 Bd6 Nac7 Be5 Be8 Bh7 Qg6 Bf4 Nf6 g8N Bf7 Nh3 Be8 Rhb1 h1N Ng1 Ng3 Be5 Bc5 Ne7 Bb6 Nf5 Bf7 Ng7 Ke7 Nh5 Rb8 d8R Be8 Rc8 Kd7 d6 Bf7 Rh8 Ba5+ Qc3 e3+ Ke1 e2 Kd2 Bb6 Qe3 e1N Bf4 Qe4 Be5 Qb7 Bf4 Qa6 Be5 Ngf5 Ng3 Bg6 Nh1 Ng3 Bf4 Nd3 Be5 Nb4 Bf4 Nbd5 Be5 Nb5 Bf4 Bd8 Be5 Kc6 d7 Na3 Bf4 Ndc7 Bd6 Ne2 Bh2 Ng3 Rb7 Kd6 R7b2 Be7 d8R+ Kc6 Rd5 Bd8 Ra5 Kd7 Ra4 Qc6 Ra7 Qa6 Ra8 Nf1+
2b2nB1/R2n2Nr/3bB1Rr/1k2n1p1/1P1K2N1/3b1NR1/3n1BQ1/NNn3qb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Ke3 c4 h5 c3 e6+ Kc7 d6+ Kb6 d5 a4 e7 a3 e8B f4+ Kd4 a2 d7 g3 d6 g2 h6 c2 h7 f2 Qd2 f3 Rh6 Ra5 Bf7 Qc7 d8R Qd7 Be6 Ra4 Rg6 Ra3 Bfc4 Qa7 d7 f1B Bb3 f2 Nf3 g1N Bbd5 Kc7+ b6+ Kd6 Qe2 Ne7 Be3 c1N Re8 Rc3 d8N Rc6 Bg8+ Kd7 Ne6 Bg2 Ng7 f1B Bf2 Bh1 Bde6+ Kd6 Qe4 Nd7 Qg4 Rc7 Qg2 Kc6 Rd8 Bd3 Re8 Qa3 b7 Kb5 b8N Qa6 Nc6 Qa7+ Kc3 Rb7 Na5 Qb6 Nb3 Ra7 Ne5 Nf3 Ng4 Nfe5 Rd8 Qe3 Re8 Qe1+ Kd4 Qg1 Rd8 Nd5 Re8 Bd6 Rf8 N5b6 Rf3 Nf8 Rg3 Nbd7 Bd5 Nc5 Bge6 Rg8 h8N Ncd7 Nf7 Rb7 Nf5 Rh8 Ng7 Nc4 Nfe5 Rh6 Nf3 Nce5 Bg8 Rb6 Bde6 Rh7 N1d2 Rc6 Rb1 Rb6 Na1 Ra6 Rb2 Rc6 Nb1 Ra6 Nc2 a1N Ra2 Rb6 Ra7 Nab3+ Ke3 Nd2 Kd4 Rc6 Na1 Qd1 Bef7 Bc7 Rh6 Qg1 Bd5 Rf6 Bde6 Bd6 Nf5 Rff7 Rf6 Rh3 Rg6 Rfh7 Ng7 R3h6
1B1RN1kn/2R2n1r/3KBpP1/1R1Qn3/2rN3N/5q2/bbr2B1n/1rB2rB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 c5 Ke5 f3 b4 f2 g4 h3 d4 a4 e4 h4 d6 a3 d5 h2 g5 h3 g6 a2 b6 c4 b7 c3 b5 c2 b6 Ra4 Nf3 Rc4 Qd3 Nh6 Nh4 Be6 Na3 Rh7 Rb1 a1R Nb5 Ra2 d7+ Ke7 Bg2 f1N Nd4 Rb2 Rg1 h1R Qb3 h2 Bh3 Qc8 d8R Qc6 Qd3 Ra2 Rb5 Rb2 Rg3 Rg1 Qd2 h1R Rc3 Nh2 Qd3 Rf1 Qd1 Na6 b8B Nc5 Ba7 Nb7 Qh5 Nd6 b7 Rb1 b8B Rf2 Qf3 Rhf1 Bf5 Bd7 Be6 Bg7+ Kf4 Be8 e5 Kf8 Bb6 Kg8 Bc5 Ne4 d6 Ng5 d7 Bh8 Ra3 Qa8 Ra7 Re2 Rc7 Qa3 Be3 c1N Bf2 Rec2 Qd5 Qc3 Bf5 Bf6 e6 Qb3 e7 Nd3+ Kg3 Bg7 Be6 Ne5+ Kf4 Qa3 Rdc8 Qd3 d8B Bc6 e8N Bb7 Qd6 Bd5 Ba3 Qb3 Bc1 Bf8 Rd7 Neg4 Bb6 Rc6 Ne2 Bg7 Rdc7 Bb2 Rd8 Qc3 Qd7 Ba2 Qd5 Qd3 Bbe3 R6c4+ Nd4 Qd1 Qf3 Qd3 Bg1 Qe2 Bc8 f6 Bef2 Ne5 Be6+ Ngf7 Qh1 Qd1 Ke4 Qh5 Bf5 Nh8 Kd5 Kf8 Kd6 Qe2 Qd5 Qf3 Rf7+ Kg8 Bh3 Rg7 Be6 Rh7 Rc7+ N6f7+
3Bn1nN/R3n3/1Q2PB2/p2B1k1N/2K3b1/r1qrR3/1RB2rBb/2rnr1N1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Ke6 e4 f5 g4 h5 b4 d5 c4 f3 c5 f2 e5 a6 c6 h4 c7 f4 b6 h3 g6 h2 g7 f3 g5 Kf5 b5 Qe7 b7 Bd7 c8B Qa3+ Qb3 Qb4 b6 Qe7 g6 Rh3 Na3 Qf6 Bb2 Nc6 b8B Nce7 Bg2 f1N b7 Ng3 Nc4 f2 Qb6 f1R Bc7 Rf2 b8R a5 Re1 Ne4+ Re3 Nd6 Bd8 Ne8 Rb7 Rb8 Ra7 Qc6 Ba6 Rc8 Bb5 Rg3 Ba4 Qf6 Bc2 Be6 Ne2 Rc7 Rd1 h1R Rb1 Re1 Ng1 Rc8 Nd2 Rc4 Ndf3 Ra4 Ng5 Ra3+ Bc3 Rh3 Rb2 Rh1 N1h3 Rc1 Nf7 Rhe1 Nh8 Bc8 Re2 Bd7 Ng1 Qc6 Kd2+ d3 Ke3 Qc8 Kd4 Qc7 Re4 d2 Kd3 d1N Re3 Ngf6 g8B d4 Bf7 Nfg8 Bfd5 Bh6 g7 Bf4 Ra8 Bh2 Ra7 Bc6 Kc4+ d3 e6 Qg3 Re4 d2 Bf6 Bb5+ Kd4 Be2 Re3+ Rd3+ Kc5 Bg4 Kc4 Ra1 Qd4 Ra3 Qb6 Nh6 g8N Qh3 Bg7 Qg3 Nf6 Nhg8 Nh5 Qe5 Kb5 Qc3 Bf6 Rf4 Ba2 Nf2 Bc7 d1R Bd8 Rc1 Bab3 Nd1 Bbd5 Qd2 Kc5 Rf2 Kc4 Qc3+
bb1rn1Nb/2kB4/nN2R2b/2rKN1P1/7B/RpR1r3/Q6R/Bnq1R2n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 b5 g4 h5 a4 h3 d4 h2 d6 h4 f6 c4 f5 b3 d5 h3 a5 b2 a6 b4 f7 b3 a7 c3 f6 c2 Qe2 Nh6 Nc3 b1N Bb2 c1B Na4 Be3 Nf3 Qe7 Nb6+ Kd8 d7 Kc7 d8N Ng8 Nc6 Qa3 Ne7 Bfh6 f8R Na6 f7 Bef4 Re8 Bb7 f8R Rd8 a8R Rh7 Bc3 Qc1 Qa2 Rh8 Bb5 Nf6+ Kd3 e4+ Kc4 e3 Ne5 e2 Ng8 e1B Bd7 Rc8 Re6 Ne8 Kd4 Bfg3 Rf3 Bgf4 Bb2 Bc3+ Kc4 Bd4+ Rc3 Rd8 Re1 h1N Ra7 h2 d6+ Kb8 Re2 Ba8 Rd2 Rh7 Re2 Re7 Rg2 Nac7 Ra3 Na6 Re2 Kb7 Kd5 Bg3 Nd3 Bh8 Ne5 Nf2 Rd2 h1R Rdc2 Rf1 Re2 Nh1 Rh2 Nd2 Rb1 Rf6 Ba1 Bgf4 Rb2 Nb1 Rbe2 Bg3 Re1 Rg6 Bb5 Rf6 d7 Bgf4 Nf3 Bb8 Ne5 Rf3 Ba4 Re3 Bb5 Rf7 Ba4 Rf6 Bb5 Rc8 d8B Rc6 Be7 Rf8 Bh4 Kc7 g5 Nd6 Be2 Rd8 Bg4 Ne8+ Rd6 Qb2 Bd7 Qc1 Re6 Rc5+
KR1n4/R1bqNb2/rB1NB2Q/1pN1r2N/1Pq1N3/rB6/2q1n3/kr2q2R w - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 cxd5 f5 exf5 a4 Qb3 axb3 Ke2 Kd7 Kd3 Kd6 Kd4 h5 a4 b5 f4 e6 g4 c6 g5 h3 g6 b2 a5 h2 a6 h4 a7 h3 f6 Ne7 f5 Rh5 f7 Rh8 f6 Bg7 f8N Rh6 Bc4 Qd7 Nc3 b1R Bb3 e5+ Ke4 c5 d4 c4 f7 Bf6 g7 Nec6 g8B Nd8 Ne6 Nbc6 Nc5 Bh4 f8R Bg3 Be6 Rf6 Be3 Rh6 N3a4 c3 Ne2 c2 Nac3 c1Q Nf4 Qf1 Nh5 Qc4 Rd1 h1R Re8 Rb8 a8Q h2 Qa6 Re1 Qb6 Ra8 Ra7 Re2 Rh1 Ree1 Rc7 Ra3 Ra7 Nf7 Rd8 Bb7 Rb8 Nd8 Kf5 e4 Bf2 e3 N3e4+ Ke7 Qa6 Bc7 d6+ Ke8 d5 e2 Bg1 Nd4+ Ke5 Bc6 Bg4 Kf7 Be6+ Kg6 Be3 Qh7 Bg1 Be8 Bf2 Bf7 Qc6 Ba5 d7 Bc7+ d6 Qc2 Kd5 Qg7 Rf1 h1Q Be3 Qh4 Rh1 Rec1 Qa6 e1Q Bf2 Ne2 Qb6 Nb7 Kc6 Rd1 d8N Rd5 d7 Re5 Neg3 Qhc4 Ne4 Be8 Nf7 Qh7 Nfd6 Bf7 d8N Qg7 Neg3 Kg5 Nf6 Kf4 Nge4 Kf3 Nh5 Rg6 Bg3 Ke3 Bh2 Kd4 Bg1+ Qf2 Ng5 Kc3 Nge4+ Kb2 Qa6 Ba5 Qb6 Rf6 Kc7 Ka1 Nc6 Qf1 Ne7 Qe1 Be3 Nd8 Kc8 Nc6 Kb7 Nd8+ Ka8 Rg6 Qc6 Bc7 Bc8 Qf8 Ne8 Bg8 Nb7 Rg1 Qh6 Rg6 Bf5 Rga6 N8d6 Be6 Bb6 Qe8 Nbc5 Bf7 Be6 Qd7
rn4QN/2RN1b2/1n1p1KB1/1B2r1q1/1k1rB3/2b1R2B/3P1rqB/2N1Rqq1 w - - 0 1 illegal: No possible last move
QNk5/3R4/2P3qB/bb1n1B1R/pnbbN1r1/N1N3n1/nNRq1B2/1K4r1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 Kd7 g4 h5 c4 a5 Kc2 e5 b4 e4 c5 e3 g5 e2 f6 e1B f5 a4 b6 h3 b5 h4 c6+ Ke8 g6 h2 g7 h3 b7 Ne7 g8N Na6 b8N Qd6 b6 Kd8 b7 Ba5 f7 Bg7 f8B Rh4 f6 Rg4 f7 Qg6+ Bd3 Nb4+ Kb2 Bh8 Bf5 d3+ Nf6 d4 Ne4 d2 Bh6 Ned5 Na3 d3+ Kb1 Bd4 f8N Kc7 Qf3 d1Q Ra2 d2 Ne2 Qe1 Rb2 d1N Bce3 Qd2 Nfd7 Ra7 Rc2 N1c3+ Kb2 Nca2+ Kb1 Kd8 Ne5 Be6 Rd1 h1N N2c3 h2 Nec4 Ng3 Bf2 h1B Nb2 Bg2 Qd3 Bf1 Qa6 Bb5 Rh1 Ne2 Rh5 Bg8 Nd7 Kc7 b8R Ng3 Rb7+ Kc8 Nb8+ Be6 Rb6+ Rb7 Qa8 Rg7 Rb7 Ne3 Rd7 Bec4 Qa7 Ned5 Qa8 Re7 Ng5 Re3 Nge4 Re2 Bfe3 Rg2 Bf2 Rg1+
2QBK1b1/1B1B1N1k/r2b1pR1/q2PrRR1/2B1qB1N/2n1bp1n/4N3/q2n4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 c5 Ke5 h3 e4 a4 g4 f3 d4 h2 b4 a3 b6 c4 g5 c3 d6 c2 d7+ Ke7 g6 a2 b7 Qb6 d8N Ke8 b5 Rh7 g7 Be7 Bf4 c1B Bc4 Bh3 Qc2 Nh6 g8B Kf8 Nc3 Kg7 Nce2 Qa7 b6 Na6 b8B Bf1 b7 Be3 Bc7 Nb4 b8R Qa5+ Rb5 Ra6 Rc5 Bg2 Rf1 a1Q Bd5 Kh8 Bb7 Ng4+ Kf5 Rhh6 e5 Nf2 e6 Na2 Bb6 Kg7 Rb5 Nd1 Qc8 Nac3 Rc5 Bf8 e7 Re6 e8B Be7 Bd7 Re4 Rf2 Bf1 Rg2+ Kh8 Rg5 h4 Ng3 f6 Kg6 h3 Kf7 Re5 Nf5 Bc4+ Ke8 Bb3 Bc4 Kh7 Rd5 Qb1 Nf7 Qe4 Ne2 Ba2 Rf1 h1Q Nh4 h2 Rf2 Qe1 Rb5 h1N Rfg2 Nhf2 Bd8 Nh3 Rg6 Qd2 R2g5 Qc1 Rd5 Qa1 Rc5 Ree6 Rcf5 Re5 Bcb5 Bd5 Bc4 Be6 Nh8 Bg8 d5 Qeb1 Nf7 Qc2 Ng3 Qe4 Ne2 Bd6+
1b1n2qN/RnP5/7B/3qN2K/QrRBkbn1/pB1N1p2/1Rb3R1/R2r2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 e4 g5 c4 a5 b4 d3 h4 d2 b6 f3 b5 f6 c5 a4 b7 a3 h6 d5+ Kh5 f2 c6 d4 c7 f5 h7 d3 b6 f4 Qa4 d1R Rh2 f3 Ne2 d2 Nf4 g4 Bc4 f1N Rg2 g3 Bb3 Nc6 b8R Ne3 b7 Nc4 Nd3+ Kd4 e5 Ke4 e6 Nh6 e7 Rg8 h8R Ng4 e8R+ Be7 Rf8 Bd6 Rf5 Qf8 Ra5 Bf4 Ra7 Bf5 Rh6 Nd8 Rc6 Rg7 Rc5 Qg8 Rc6 Rh1 Rc5 d1Q Nd2+ Ke3 Rc6 Nd6 Nc4+ Ke4 Be3 Rf1 Bd4 Qd2 Nce5 Rd1 Rc4 Bh7 Rc8 Qa2 b8B N6b7 Rb2 g2 Be3+ Kd5 Bc1 g1B Bd2 Bg3 Bh6 Bf4 Rg2 Ne6 Re8 Ned8 Rb2 Bf5 Re6 Bd4 Rg6 Ke4 Rg5 Nh2 Rgg2 Ng4 Ra5 Ra6 Ba7 Rb6 Ra6 Rb4 Bc5 Kd5 Ra7 Bf2 Bd4 Be4 Nc1 Bc2 Ncd3 Ke4 Rc3 Bb1 Rh2 Qe6 Bd5+ Kf5 Bg5 Nf6+ Kh6 Rb5 h5 Bc1 Bc5 Rh1 Ra5 Rd1 Bf4 Rgg1 Rg2 Qc4 Ba7 Qc5 Bb3 Qg8 Rc4 Qcd5 Bg5 Bc5 Bb6 Rb4 Ra8 Be7 Bd4 Bc5 Ra6 Ba7 Bf4 Bb8 Ra7 Ke4 Bd2 Qh8+ Kg5 Ne8 h6 Bc2 h7 Nf6 Kh6 Qhg8 h8N Ng4+ Kh5 Kf5 Bf4 Ke4 Bh6 Bf4
3qBrn1/2p1B2N/b1R2n2/1rr1R1R1/K1Q1N3/pB2k2q/2PN3b/1N2N1qn w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 Kf7 Kc3 Ke6 Kb3 Kf5 f4 h5 g4+ Kg6 b6 a5 g5 Kf5 b7 d5 e6 e3 e7 Ke4 e8B e2 g6 e1Q g7 h3 f5 d4 f6 h4 f7 h2 Bg5 d3 Be7 d2 Ka4 h3 b4 Ra6 b5 Qe3 b6 Qf4 Qe2+ Qe3 Nf3 d1R Rg1 h1N Qc4+ Qed4 Ne1 h2 Rg5 Nf6 g8N Nbd7 b8R Kf4 b7 Ke3 Bd3 Bh6 f8N Rc6 Nh7 Rc5 Bdg6 Rd3 Bgf7 Rb3 Ra8 Bf8 b8N Ba6 Nc6 Rbb5 Ne5 Qh4 Be6 Qh3 N5f3 Bg7 Nfd2 Bh6 Rd5 Bf4 Rg5 Be5 Rb8 Bg3 Rb6 Bf4 Nh6 Rf8 Rc6 Ng8 Nf7 Ndf6 Nd6 Be5 N6e4 Bg3 Ka3 a4 B6f7 Nf2 Ra2 h1Q Rb2 Qg1 Bd5 Rb7 Rb5 Bh2 Kb4 a3 Ka4 Nh1 Be6 Rf5 Re5 Rb6 Qb4 Rb5 Bb3 Rc5 Qc4 Rb5 Ree6 Rfd5 Ree5 Rdc5
1Qbbr3/p7/2n1q1kq/1B1B1NB1/P1q1r1r1/KR6/NpbR2NN/nR4N1 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 g4 h5 e4 b5 d4 f5 Kd2 Kf7 Kc2 b4 Kb2 f3 a4 b3 g5 h3 g6+ Kg7 d6 f2 e5 f4 e6 f3 d7 h2 e7 h4 c6 h3 d5 Qc7 d8R Kf6 e8N+ Kf5 g7 Qb6 d6 Rh4 d7 Na6 c7 Be7 Nf6 Nc5 Ng4 Kg6 Bb5 f1Q Ka3 b2 Bg5 f2 Qb3 Qc4 Nc3 f1R Na2 Re1 Rb1 Re4 Qg3 Qbe6 Qf4 Bb7 c8N Nb3+ Nd6 Bc8 Qe5 Bf6 Nf5 Na1 Qb8 Ne7 g8B Nc6 Re1 Be5 Re3 Bc7 Rb3 Ba5 Nf3 Bb6 Rb1 h1B Ngh2 Rhg4 Ng1 Bf3 Nd6 Bd1 Nf5 Qf6 Bd5 Bc2 Rf8 Qe6 d8N Bc7 Rf7 Ba5 Rd7 Bb6 Nf7 Bd8 Ne3 Nd4 Nh6 Nc6 Qf4 Rb8 Ng2 Ra8 Nf5 Rb8 Nhf3 h2 Rd6 h1Q Nh2 Rb7 Qg3 Re7 Rd7 Re8 Qb8 Ne5 Ba8 Nc6 Rd2 Nd4 Bd5 Nc6 Nf1 Qh4 Nh2 Qh6
1R2n3/KRBr1Rb1/2bQb2b/N3qB2/N1N3Br/1pP2b2/2n3np/N1k4N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 b5 g4 h5 a4 d5 f4 e5 f6 Ke6 g6 b3 g7 b4 g5 Kf5 g6 h4 a5 h3 a6 h2 a7 b2 f7 b3 c3 Rh5 Bh3+ Kf6 f5 Rh4 Bf4 Bb4 f8N Na6 Na3 b1B+ Nc2 Qe8 Bg4 Be6 Ne2 Rd8 a8N Rd7 Nb6 Qb8 Bg3 Kg5 Nc4 Nf6 g8B Ne8 g7 Ba3 Ng6 Bf8 f6 Qb5 f7 e4+ Kd2 e3+ Kd3 Qb8 Bh7 Qe5 g8R Bh6 f8N Bg7 Bf3 Kf5 Na5 Kg5 Rf1 Kf5 Nef4 e2 Nh5 e1B Bg4+ Kg5 Rf7 Bd2 Ra4 Bf4 Rb4 Be3 Rb7 Nb4+ Ke2 d3+ Kf3 d2 Na1 d4 Rh8 Qb8 Bc7 d3 Ke4 Nc2 Ng3 Bf4 Ne5 Be3 Qh1 d1B Bf5 d2 Nec4 Be2 Qf3 d1N Nh1 Bc1 Qh3 Nde3 Qg3 Ng2 Qd6 Bf3+ Kd3 Qa7 Rg8 Qc5 Rh8 Qe5 Rg8 Re7 Nd7 Kf4 Nc5 Rd7 Rh8 Bed5 Na4 Bc6 Ncb2 Bd2 Kc4 Ke3 Rhf8 Ke2 Rh8 Bdh6 Rg8 Qe6+ Kc5 Qe5+ Kb6 Ke1 Ka7 Ke2 Bd3+ Kd2 Nbc4+ Kc1 Be4 Nb4 Bh7 Bf5 Bg6 Be6 B6f5 Nc2 Rh8 Nf6 Rhb8 Ne8
k3N1rb/4R3/1bbbnn1N/q1B5/1QRp4/bP2rN1n/1K1Rp1BB/1B2B3 w - - 0 1 illegal: No possible last move
3NN3/1Np2R2/N2r1BpK/3kBb2/1P6/RRq1nr1B/bb1nQ3/1nNn3n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 a5 h4 f5 d4 a4 b6 f3 Kg3 a3 Kf4 f2 h5 g3 h6 g2 b7 g6 h7 a2 Na3 Nf6 Kg5 f4 Bc4 f1N Ne2 g1N Bb2 f3 Nc1 f2 Qe2 Bf5 Rh3 Ra6 Rb3 Nbd7 b8N Nb6 Bb5 Nd2 Bd7 Be7 Kh6 Rf8 h8B Nh5 Bf6 Nbc4 Bc8 Rb6 Na6 f1B Be6 Nb1 Bd7 Be6 Bc3 Bg8 Bh3 Ncd2 Bb2 Be6 Bc3 Bf5 e5+ Kd7 e6+ Kd6 Bb2 Ng3 Bc3 Qb8 Bb2 Bd8 e7 Nh1 e8R Qb7 Re7 Qc6 Rg7 Bg2 Rf7 Bge4 Bc3 Be6 Bb2 B4f5 Bc3 Be7 Bb2 Qc3 Nc4+ Kd7 d6 Kc6 d7 Kd5 d8N Rd6 Be5 Bf6 Nb7 Bh8 Qh5 Ne2 Qg4 Neg3 Qe2 Nf2 Bf6 Ngh1 Be5 Rc6 Ncd6 Nd1 Ne8 Rd6 Bf6 Na3 Rb1 a1N Be5 N3c2 Ra3 Nab3 Ba1 Nce3 Rb2 Ke4 d5 Nb1 Bf6 N3d2 Rbb3 Rc6 d6 Kd5 d7 Rd6 d8N Qc5 Bfd4 Bc2 Bdc3 Ke4 Rb2 Ba2 Rbb3 Kd5 Rh7 Rf3 Rf7 Bf5 Bd4 Be5 Bdb2 Bg3 Bf6 Be5 Bd4 Qc6 Bb6 Bc3 Bbd4 Bb2 Bde5 Qc3
3NRN2/pb1R3Q/2q1B3/P1n4b/2pNb2b/1nrrRR2/kBR5/3rB1bK w - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 h4 gxh4 b4 d5 bxc5 dxc4 f4 Kd7 Kf2 Kc6 g4 Kd5 Kg2 h5 a4 b5 d4 e5 g5 e4 c6 e3 c7 b4 f6 b3 a5 e2 f7 e1B g6 b2 f5 Bg7 f8R Rh6 f6 Qe8 f7 Qa4 Rh2 h3+ Kh1 h4 Na3 b1R Ne2 Na6 Qd3 Qc6 Bb2 Bb7 c8R Nc5 Rc7 Ne7 Nc2 Nf5 Ra3 Rd8 Nb4+ Kd6+ d5 Rd1 Rg2 Bd4 g7 h2 g8R Bg1 Nd4 Rg6 Rc2 Rg3 Qe4 Rc3 Bh3 Bef2 Re8 Bg3 f8N Rd7 Ne2 Nd4 Be6 Ndb3 Qh7 B3f2 Rg3 Ke5 Nc1 Kd4 Rf3 Rd8 d6 Rd3 d7 Bg3 Kg2 h1B+ Kf1 h3 Ne2+ Ke5 Re3+ Be4 Nd4 h2 Rf3 Bh4 Kg2 Rd1 Kh1 Bg6 Qg8 Bh5 Qh7 Rc8 d8B Kd6 Bg5 Rd8 Bd2 Ke5 Nf5 Rd3 Be1 Ke4 Nd6+ Ke5 Nf7+ Kd4 Nd8 Be3 Kg2 h1B+ Kh2 Bef2 Re3 Be4 Rd7+ Qd5 Rf3 Bg1+ Kh1 Na6 Rg7 Qc6 Rd7+ Kc5 Rd2 Kb5 Nc2 Nac5 Nd4+ Kb4 Rc2 Be3 Ra1 Bg1 Rac1 Ka4 Re2 Kb4 Re3 Ka4 Rc2 Kb4 Ba1 Ka3 Bb2+ Ka2
1N1B1R2/NB1Q1BRB/nn1p4/B1qr1Nn1/2b1R1P1/1n6/1kb1pr1K/br6 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 b4 Kf7 g4 Ke6 f4 Kd5 Kf2 a5 Kg2 h5 b6 e5 f5 e3 b7 h4 b5 d6 f6 a4 g6 e4 f7 d3 c4+ Kd4 b6 a3 g7 d2 c5 e2 c6 e1N+ Kh2 h3 c7 a2 Qf3 d1B Bg5 e3 Qc6 Be6 c8B Ne7 g8B Nd5 Bc4 e2 Qd7 Qc7 Bh7 Na6 b8N Qc5 b7 Bg7 f8R Bc2 Nc3 Nb6 Bd8 Bf7 Rb1 a1N Rb4 Nb3 Ra4 Rg8 Rb4 Bh8 Ra4 Rg5 Nb5+ Ke3 Na7 Kd2 Be6 Kc3 Re4 Rd5 Nf3 Kb2 Nh4 Bg7 Nf5 Nf3+ Kg3 Bg8 Bf7 Ng5 Kh2 Bf6 Nbc6 Bg7 b8B Bh8 Bbc7 Bg7 Kg3 h2 Bb7 Rc8 Rc1 h1R Nb8 Re1 Ra1 Rb1 Kh2 Bc3 Bf6 Re8 Bfd8 Re6 Raa4 Rf6 Rab4 Ka3 Re7 Ba1 Rf4 Kb2 Rfe4 Na4 Ba5 Nb6 Bh5 Re5 Be8 Bc4 Rg7 Rd5 Bh5 Ne6 Bf7 Ng5 Nd4 Rf3 Nf5 Rf2+
R1RR4/BP1K3N/2bbB2Q/b1qN3n/3Bn2r/1N1p2n1/2p3r1/RRrk2r1 w - - 0 1 illegal: No possible last move, all moves rejected
nNNkb3/p6R/2Bn3p/n1r1R2B/2rB3K/2rB2q1/PBb5/N2bR1nQ w - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 e5 c4 f5 d4 b5 d5 h6 g7 b4 g6 b3 d6 b2 c6 f3 Kg3 f4+ Kf2 e3+ Ke1 e4 c7 e2 Kf2 e1R c5 Bd7 c8B Na6 c6 Re3 c7 Ne7 g8B Nf5 g7 Qg5 Bh7 Rc3 Na3 b1B Be2 Bc2 Bb7 Rc8 Bb2 Bc6 Rh5 e3+ Ke1 Bd7 Bc6 f2+ Kf1 Rc4 Nf3 Qg3 Nd4 Rg8 Bd3 Rc5 Ke2 f1N Rg5 Rf8 g8R Nd2 R8g7 Nb3 Qh1 Na5 Re1 f3+ Kf1 f2 Bg6+ Rf7 Rh7 Bd1 Nac2 Rc4 Bce4 Ba4 Na1 Bac2 d7+ Ke7 Qf3 Nd6 d8B+ Kd7 Be7 Rf5 Qh1 Rfc5 Bh5 Re8 c8N Qe5 Kg2 e2 Kh3 Nc7 Nc6 Na8 Rf1 e1N Bde2 Nf3 Re1 Ng1+ Kh4 Rc3 Ba6 f1B Nb8+ Kc7 Bd5 Bb5 Bf6+ Re7 Rf5 Be8 Bc6 Kd8 Bd3 Qe3 Bg7 R5c4+ Bd4 Re5 Rg5 Rec5 Re5 Qg3+
3Nr1n1/q1N1Q1Br/1N2b2R/2rB2pp/N1qBNR2/1P5K/1rn1rR2/1k4b1 w - - 0 1 illegal: No proof kernel
B3Rn2/nN2B3/3N2Q1/1N2P1bR/b2Bq1rN/R1qkN1pK/1nn2pr1/4n3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 e4 Kc5 b4+ Kd4 h4 f5 h5 g5 e5 a5 d6 c5 h6 a4 b6 g3 d3 c4 d7 a3 b5 c3 h7 f3+ Kh3 g2 b7 f4 b6 c2 Qd2 f2 Ra2 f3 Nc3 Bh6 Nd1 Nf6 Ne3 Nc6 b8N Na7 b7 Qa5 Na6 Qc3 b8R Rg8 h8N Nh7 Nf7 Nf8 Bb2 c1N Nc7 Ba6 d8B Bb5 Nd6 Ba4 Ra1 a2 Qc2 Rg7 Be2 f1Q Be7 f2 Re8 Qe1 Bf3 Rc8 Ba8 g4+ Kh2 g3+ Kh3 Rg4 Qb1 Bg5 Nf3+ Kc5 Nh4 Kd4 Nd1 Qe4 Ne3 Nb3 Rh2 Na5 Qc2 Nc4 Ncb5+ Kc5 d4+ Kb4 Rah1 a1N d5 Rc5 Qd3 Nc2 Ra1 Rc7 Ra3 Kc5 Bf6 Rh7 Be7 Rh5 Ba1 Nb2 Rh1 Qeb4 Qg6 g1N+ Kg2 Nf3 Kh3 Nfe1 Rh2 Qe4 Rh1 Nbd3 Bb2 Qcc4 Bd4+ Kb4 Nf7+ Qc5 d6 Nb2 d7 Rh6 Nfd6 Qc3 d8N Rh5 Nef5 Rh7 N8b7 Rh6 Nc8+ Kc4 Ne3+ Kd3 Ncd6 Nf3 Kg2 Nc4 Nhf5 Nb2 Rh5 Bf6 Rg5 Rh1 Nh4 Rg1+ Kh3 Rg2 Rf5 Nfe1 Rh5 Bg5
rNN2nnr/B1n1RB1Q/3q1B2/1k1N2b1/R1q2NrR/1p1bP1p1/8/4KrN1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 Kd7 d4 b5 h4 c5 d6 Kc6 d5+ Kb6 h6 g5 h5 f5 d7 g4 a5+ Ka6 h7 c4 h6 b3 d6 b4 Nc3 f3 Be3 f4 Qb1 g3 Ba7 b2 e3 b3 Nd5 Kb5 a6 Qe7 d8N Bf5 d7 Bd3 Nc6 c3 d8N c2 Rh4 Qd6 Ra4 Be7 Ne6 Nd7 Nb8 Nf8 Bh3 Bd8 Bg4 Be7 Bh5 Bg5 Bf7 c1R+ Kd2 Rc4 Ke1 Ne7 Qc2 b1N Qh2 Rg8 h8B Na3 Bf6 Rh8 h7 f2+ Kd2 f3 Nef4 Rg8 h8R f1Q R8h7 Rh8 Qh3 Ng8 Qf5 Qg2+ Ke1 Qc2 Rg7 Rd4 Qh7 Qcc5 Bg6 Qcc7 Re7 Qc4 Bf7 f2+ Kd2 f1R Bc5 Be2+ Nd3 Rg4 N3f4 Ra7 Bb6 Bd3 Bbd4 Rb7 a7 Rb6 a8N Ra6 Nab6 Ra8 Bde5 Kc5 Nc8 Nb5 Bb2 Nc7 Bbd4+ Kb5 Ba7 Rf3 Ke1 Rf1+
1B2RBqk/1rN2q1n/r1N1R1b1/5P2/3RN3/KRpn1q2/Q1p1q3/1b2R1bB w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 b4 Kf7 g4 Kg7 d4 c5 Kd2 a5 Kc2 h5 Kb2 e5 f4 h3 d5 h4 d6 e4 g5 a4 d7 h2 b6 e3 b7 h3 g6 e2 b5 e1Q b6 a3+ Ka2 c3 Qa4 c4 Nd2 Ra7 Ne4 Nf6 Bg2 Bc5 Ne2 Nc6 b8R Rh6 b7 Ne5 Nd4 Nh7 f6+ Kh8 f7 Qg8 d8R Bf5 f8B Nd3 Nc6 Bg1 Rd4 Qe2+ Bd2 c2 Re1 c3+ Qb3 Be6 f5 Bf7 Qd5 Be8 Kb3 a2 Bf4 a1Q Bg3 Bf7 Re8 Qa5 b8N Qc7 Na6 Rb7+ Ka3 Qd7 Qa5 Ba2 Bgd6 Bb1 Nc7 Qdf7 Qa7 Bf2 Rhf1 h1B Re6 h2 Qa5 Bg1 Qd5 Rb4 Qa2 Rb7 Bf3 Bg2 Bg3 Bh3 Bh1 Bg4 Rf4 Bf3 Rb4 Bh5 Rb3 Nc5 Nf2 Nd3 Rd4 Qe8 Ne4 Qgf7 Bg2 h1Q Bf4 Qh3 Bh1 Qhf3 g7+ Kg8 Re7 Rd6 Re6 Bg6 Na7 Rdb6 Nc6 Nf6 Be5 Kh7 g8R Qc8 Rg7+ Kh8 Bg3 Qce8 Bgd6 Qg8 Rge7 Qef7 Re8 Nh7 Na8 Nf2 Bb8 Nd3 Nc7 Ra6+
3n2B1/Q1r1N1K1/q1b2r1R/1R3p1R/N2R1b1n/p1RN2rr/nP3B2/1k4Bq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 e4+ Kb4 d4 c5 b6 f5 d6 a5 b7 f3 d5 c4 d7 a4 g5 c3 g6 h3 g7 h2 d6 f2 Bc4 f1Q Nh3 c2 Nc3 a3 Nf4 h4 Be3 c1N Qd4 h3 Bg1 Ne7 Kf6 Qb6 g8N Ng6 d8R Qa6 e5 Nh4 e6 Ra7 e7 Bh6 e8R Nc6 b8R+ Bb7 d7 Na2 Ne7 Rg8 Rc1 Rg3 Na4 Bg5+ Kg7 Qg2 Bd3+ Kb3 Rh8 Qf3 Rc5 Qh5 Bc4+ Kc2 Be6+ Kb1 Rh6 Qf3 Nd3 Bf4+ Kf7 Ba8 Rc3 Rc7 Qa7 Qg2 Rb4 Qf3 Rdb8 Nd8+ Kf8 Bd5 R8b5 Bc6 Rd4 Qf1 Bf2 Qc1 Bg8 Qe1 Rg1 h1R Rf1 Rh2 Rh1 Rhg2 Bg1 h2 Rh5 Re2 Rh6 Re6 Bf2 Nf7 d8B Rf6 Bg1 Rd7 Bb6 Rc7 Rg6 Nd8+ Kg7 Rf3 Rh6 Qf1 Bf2 Re3 Rg1 h1R Rg5 Rhh3 Rgh5 Qh1 Rd7 Bd5 Bg1 Ref3 Bbf2 Bc6 Rd4 Rfg3+
1bq5/k2n2B1/1R1N3B/4pqQn/N3PR2/RrR2bNq/3Kp1r1/RB4qn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 f4 Qb3 Qd6 Qf3 Qd8 Qe3 fxe3 g4 Kd7 b4 a5 d4 h5 f4 e5 b6 c5 b5 h3 b7 Kc7 d6+ Kb6 d5 a4 d7 a3 d6 a2 f5 h4 f6 c4 f7 c3 g5 h2 g6 c2 g7 h3 Ne2 Be7 f8B Bg5 Ng3 Rh5 Nc3 Ra5 Na4+ Ka7 Bd3 e2 Rf1 h1N Rf4 h2 Kd2 Qf6 d8Q Bg4 d7 Qf5 Qe7 Rh8 d8N Bf3 Nf7 Nf6 g8R Nh5 Nd6 Nd7 b8R Rh6 Qf6 Rg6 Rc8 Bh4 Qg7 Bd8 Rc3 Bc7 Rh8 Rg4 Qg5 Bb8 Bg7 Ra6 Rhc8 Rb6 Ra3 Rb7 Rcc3 Rb6 Nf1 Rg2 Ng3 Rb7 Ke3 Rb6 Bd2 c1Q Bb1 Qg1+ Kd3 Qc5 Bc1 Qc8 Kd2 Nf2 Bh6 h1Q Bg7 Rb7 b6+ Ka8 Bd3 Qhh3 Bc2 Nh1 Bb1 Rc7 b7+ Ka7 Qg6 Rc6 Qg4 Rb6 Qg5 Bc7 b8R Rb3 Rb5 Bb8 Rb6 Qh8 Bc2 Qg8 Ke1 Rb1 Rh4 Bg4 Qd8 Rb4 Bch6 Nc5 Rc1 a1Q Qg5 Rb3 Kd2 Bf3 Rf4 Nd7 Rg1 Qc8 Rf1 Qa2 Ra1 Qb1 Bd3 Qf1 Bb1 Qg1
4nB2/bnB1BBr1/R3qB1k/1qp1nr1q/2R1bP2/3Q2N1/1p1nNN2/2R3K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 Kg7 g4 b5 f4 e5 Kf2 h5 a5 b3 g5 b2 a6 b4 g6 b3 f6+ Kh6 f7 e4 d6 e3+ Kg2 h3+ Kh2 h4 d5 e2 g7 e1Q d7 Qe6 d6 Rh7 a7 Qde8 d8B Nc6 d7 Ne5 Ra6 Bc5 f8B Nf6 Ne2 Bb7 Qd4 Be4 Nbc3 b1N Kg1 Nd2 Ba3 b2 Nd1 c6 Bc7 h2+ Kf2 h3 d8B Rb8 a8R Rb5 Rc8 Ba7 Bae7 Q8d7 Rg1 h1Q Qe3 Rc5 Qd3 h2 Bh3 Ne8 g8N+ Kh5 Bf5 Rg7 Nf6+ Kh6 Nh5 Qdd5 Rf1 Qb3 Nhg3 Qb5 Bg6 Qf3+ Ke1 h1N Bf7 Nf2 Bf6 Qh5 Bde7 Bg6 Rh1 Nfe4 Nf2 N4d6 Rg1 Nb7 Rh1 Ndc4 Kf1 Nd2+ Kg2 Bh7 Rc1 Be4+ Kg1 Rd5 Rd8 Rc5 Rd4 Rd5 Rdc4 c5 Raa4 Nc6 Ra2 Rf5 Ra6 Ne5
1b2n1B1/3b1b2/3n1nRP/1rp1BR1Q/2N2NBB/1RK1r3/p6b/k1N2qBq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Ke7 d4 Kd6 Kd2 f5 e4 a5 h4 g5 b6 c5 b5 f3 h5 a4 h6 f2 b7 f4 b6 g3 Qf3 g2 Qg4 f3 Be2 f1Q Qh5 f2 Bg4 a3 Kc3 a2 Nd2 Na6 b8R Nf6 b7 Bd7 Ne2 Nc7 Rg1 Ra5 Rb1 Rb5 Rb3 Nce8 e5+ Ke7 e6 Kd6 e7 Qc7 Nb1 Qc6 Be3 Bg7 Nc1 Rg8 Bd1 g4 Nd2 g3 Bg4 Bh8 Rc8 Rg5 Ra8 Re5 Ra6 Bg7 Rh1 g1B b8B+ Nc7 e8B g2 Rb6 Bh2 Bf7 g1N Bg8 Nh3 Ra6 Ng5 Nc4+ Ke7 Rg1 Nce8 Ra4 Re6 Be5 Nf7 Rg3 Qa8 Rf3 Nfd6 Rf5 Qh1 Raa3 f1B Ra6 Bg2 Rc6 Qf1 Bg1 Be4 Rg5 Bg6 Rf5 Bf7 Ra6 Kd8 Rb6 Kc7 Ra6 Kb7 Rc6 Nc8 d6 Ka7 Rb6 Qh1 d5 Bf8 Rc6 Be7 Rb6 Bd8 Rc6 Bc7 Ra6+ Kb7 Rc6 Bb8 Ra6 Bc6 d7 Ncd6 d8B Bd7 Rc6 Nh7 Bh4 Nhf6 Rc8 Ka6 Rc7 Rb4 Rc6+ Kb5 Rb6+ Ka4 Rc6 Nc8 d6 Rb5 Rb6 Bc6 d7 Ncd6 d8N Bd7 Bed4 Re1 Ne6 Re4 Nf4 Re3+ Kc2 Nb7 Re6 Nbd6 Be5 Nd5 Rg6 Ndf6 Rd3 Kb4 Nd2 Ka4 Kc3 Ka3 Nc4+ Ka4 Kd2 Rb3 Nb6+ Ka3 Rc3 Kb2 Nc4+ Ka1 Kc2 Re4 Kd2 Rb5 Rb3+ Rd4+ Kc3 Re4 Bgf2 Re1 Bg1 Re3+
R1Rb4/1b6/1P1prNkr/Kbq1p1q1/3qnq2/R1nN4/6BR/BBR2Q1N w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 e5 c4 a5 b4 h5 f4 a4 c5 d3 Kc3 d6 c6 d2 f6 h3 b6 h2 b5 h4 Kb4 a3 c7 a2 b7 h3 g5 Qe7 f5 Bd7 c8B Be6 g6+ Ke8 b6 Rh6 f7+ Kd8 g7 Qf6 Bb2 Ke7 Nc3 Bc4 Nce2 Na6+ Ka5 Bb5 b8R Qg5 Bg2 Kf6 Nf4 Ne7 Rc1 Nd5 Qf1 d1Q Ba1 Qdg4 Nge2 Be7 Ng3 Nc3 Nd3 Bd8 g8N+ Kg7 f8R Q4f4 f6+ Kg6 f7 Nc5+ Ba6 N5e4 Nf6 Ra7 Rc8 Re7 Rh8 Re6 Rg1 h1Q f8R Qh2 Nh1 Qhg3 Rh7 h2 Ra7 Qe1 Raa8 Qe2 Rh8 Qee3 Bb7 Qc5 Bd5 Re8 Bb3 Re7 Bc2 Re6 Bb1 Na4 Bd4 a1Q Rc3 Qb2 Ra3 Qbf2 Ba1 Qfd4 Qf2 Nac3 Rc1 Rh5 Qf1 Rh4 Nhf2 h1B Rh7 Rg4 Rh2 Rh4 Bh3 Bf3 Bg2 Rh6 Nh1 Nf2 Qe2 Bb7 Qf1 Nfe4
5qrK/qN1nn3/pNR1b1NR/3r3B/q1R5/2nk2P1/2R2pQ1/BB3qbR w - - 0 1 illegal: No possible last move, all moves rejected
BqR2r1b/K2kbrP1/3r2NR/Rb3RB1/4B2p/1Qq1n1Np/3N1R2/rn6 w - - 0 1 illegal: No possible last move
1R1r4/N3N1P1/1r2BKn1/1R2rp2/2bp1BBq/1BrBQq2/2N2bk1/b4R1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 Kf5 Kd5 g4 h5 b4 f3 c4+ Kd6 e4 a4 c5+ Ke7 c6 Kd6 g6 h4 g5 d3 b6 d2 b7 a3 b5 f2 g7 h3 g6 h2 b6 a2 e5+ Kd5 e6 Ra6 e7 Nh6+ Kf6 Ke4 g8B d5 g7 Nf5 c7 Ng3 Qb3 d1R Nf3 Re1 Ne5 Be6 c8B Nc6 Ng6 Ne5 Bd3+ Kf3 b8N f1R b7 Rb6 Bf4 Kg2 Nc6 Rf3 Rf1 h1Q b8R d4 Qa3 Bc4 Bg4 Qd5 e8B Bb4 Ne7 Ng6 Qc3 Re5 Na3 Qh2 Be6 Nh1 Rab1 a1B Na7 Qg3 Qb3 Be1 Bd7 Bf2 Nc2 Rfe3 Qa3 Qdf3 Rb5 Qh3 Bh7 Rd8 Bg8 Rb7 Bg4 Rb6+ Bde6 Qh5 Be4 Rc3 Bd3 Qhh3 Qc1 Re1 Qe3 Qhg3 Kg5 f5 Kf6 Qh4+ Bg5 Re8 Qe4 Rb7 Bd5 Rd8 Bge6 Rb6 Qf4 Re5 Qe3 Ba2 B5c4 Qh6 Bf4 Qh8 Bb3 Qh7 Ba4 Bc4 Bb3 Qh4+
1r5N/kb1K1qp1/1N2R3/bB1NR3/3bnnBQ/R2N2b1/qr3BPp/1N1q4 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 Kd7 Kf3 f5 d4 c5 e4 Kc7 b4 Kb7 d6 a5 e5 h5 d7 a4 d8R h4 b6 h3 b5 a3 d5 c4 e6 c3 e7 a2 e8B c2 d6 Rh5 d7 Bb4 Be2 Rh6 Qd4 Bc3 Be3 c1B Bf2 Nf6 Bh5 Na6 Re8 Nd5 d8N+ Kb8 b7 Rb6 Bg4 Ka7 b8N Ba5 Re6 Bb7 Nf7 Nc5 Nh8 Ne4 Nd7 Rb8 Nf6 Bcd2 Bc4 Be1 Ne2 Qg1 Nc1 h2 Nd3 Qf1 Re5 Qg1 Be3 Bg3 Bf2 Qc1 Re1 Qb2 Re3 Ne7 Qd8 Ng6 Nd5 Qb3 Qh4 Qc2 Na3 Qa4 Rae1 a1B Nb1 Bd4 R1e2 Qa3 Ra2 Qb3 Ra3 Qa2 Re8 Nc5 R3e5 Ne4 R8e6 Bb2 Ke2 f3+ Ke3 Nf4 Rd6 Nc3 Kd4 Ba1 Kc5 Bb2 Be1 f2 Rde6 f1Q Bf2 Qd1 Re8 Bc6 Kd6 Bb7+ Kd7 Ne4 R8e6 Bd4 Ne1 Ba8 Bce2 Bb7 Nd3 Nh3 Bf1 f4 Bfe2 f3 Bf1 Rc6 Be2 Rc2 b6+ Ka6 Bf1 Rb2 Be2 Nf4 Bf1 Ba8 b7+ Ka7 Be2 Rg8 b8N Bb7 Nb6 Rc8 Na6 Ra8 Nc7 Rb8 Be3 f2 Ncd5 f1Q Bf2 Qab3 N3b4 Qa2 Bb5 Qf3 Nd3 Q1d1 Bh3 Qh5 Bg4 Qf7+
rq1R1b2/2R2Np1/2b2Bqp/2RB1n1K/B7/kNnN1P2/1qq1Q2N/r1N1r3 w - - 0 1 illegal: No proof kernel
1RBbr3/q2p4/4qRN1/4B1pq/BRb3k1/B1BbQ2N/2n2KP1/n3rq1N w - - 0 1 illegal: No possible last move, all moves rejected
1b1r1K1R/2p5/rP1B4/3b2BB/1N3NR1/1bq1qB1N/pr3RBr/2Qnkn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 e4 f5 g4 a5 b6 h3 g5 h4 b7 h2 b3 a4 g6 h3 g7 f3 d6 f2 d5 a3 d7 a2 Ke6 f4 Kf7 f3 e5 Qe7+ Kg6 Rh7 d8R Be6 d6 Ra6 d7 Nc6 b8N Nf6 g8B Ng4 Nc3 Ne3 Bg2 f1R Nce2 f2 Nf4 Kc3 b4 Bb3 b5 Na5+ e6 Nac4 Nc6 Nd2 Nb4 Re1 Rb8 f1Q d8B Qc4 Ba3 Re2 Rb1 Qcc5 Rb2 Ndf1 Qc1+ Rc2 Bf3 Nd1 Bf7 Qe8 Bg5 Qec6 Rd8 Qe3 Rd4 Bc5 Be8 Ba7 b6 Qc4 e7 Bb8 Bec6 Qc5 e8B Rd7 Bf7 Qc4 Kg7 Qcd3 Qa1 Kd2 Qc1+ Ke1 Kf8 Qc3 B7h5 Re2 Bg2 Rd2 Bcf3 Rf2 Rb1 Rc2 Rd2 Rb2 Rf2 Qed2 Nge2 Qde3 Rg1 h1B Ra1 h2 Nh3 Ra8 Nef4 Ra5 Nbd5 Ra6 Bd6 Re7 Nb4 Rd7 Bc6 Be6 Bgf3 Bb3 Rg4 Bg2 Rb1 h1R Ba8 Re2 Rb2 Rh2 Rd2 Bh1 Rd5 Bg2 Re5 Bh1 Re8 Rd2 Bg2 Rb2 Baf3 Qc2 Re6 Ba7 Be4 Qc6 Rh6 Qc4 Rh8 Qcc3 Bc6 Bb8 Bgd5 Bf3 Be4 Be2 Bed5 Bec4 Bg2 Be6 Bce4 Bed5 Bef3 Rd8+
3k1BrB/1p1b1B1N/q1R3Rp/5N2/n2q1Knq/2PbN2N/r1N5/2bQ1b1R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 d6 Kf3 e5 g4 h6 a4 d5 a5 b3 f6 b2 g6 Qd7 g5 Ba3 g7 Na6 f7+ Kd8 f8N Ke7 Qd2 d3 g6 d4 Nh3 Qa4 Nh7 Nc7 a6 Kd8 a7 Be7 Na3 b1B Bb2 Nf6 g8N Ncd5 g7 e4+ Kg3 e3 f4 e2 f5 Bb4 Ne7 Nc3 Kf4 Ng4 f6 e1Q f7 Bd7 f8B Qh4 g8R Qb5 Rg7 Rg8 Nf5 Qa5 Qc1 d2 Bc4 d1B Rg6 d3 Bf7 d2 Ra2 Be2 Ba1 Rc8 a8N d1Q Nb6 Qa6 Nbc4 Bf1 Nce3 Na4 Bh8 Bd2 Rb2 Rc5 Rbb6 Rb5 c3 Rb2 Qc2 Bc1 Rbc6 Ra2 Qe2 Be4 Nc2 Qd4 Qd1 Bed3+
1bn2qb1/p1Q4N/q1r1R3/N1p5/B3Rb1b/1RBB1r1P/1B4nN/2rK2Bk w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Ke7 d4 Kf6 b4 Kg5 b6 Kh4 b7 f5 d6 c5 d7 g5 d5 f3 d6 f4 e5 f2+ Ke2 g3 b5 g2 e6 g4 e7 g3 e8B f3+ Kd2 Nh6 b6 Ng4 Ra6 Nc6 b8B Ne3 b7 Be7 Nh3 g1B Ng5 g2 Bb2 Rf8 h3 Kg3 Rb6 Bh2 Nh7 g1B Qb3 Rg8 Qf7 Bh4 Rb4 Qf6 d8B Ne7 Ba5 Be6 Bd3 Kg2 d7 f1R d8N f2 Nc6 Qg6 Bf4 Rc8 b8R B2g3 Rb3 B1h2 Bac3 Bc4 Na5 Qa6 Bb5 Rc6 Re8 Nc8 Ba4 Rg7 Bg5 Bb8 Qc7 Bg8 Re6 Rc1 Bh6 Rg3 Re1 f1Q Bhg7 Qf5 Bgd4 Qf8 Ke2 Rf3 Nd2 Bf4 Nf1 Kh1 Nh2+ Rf1 Kd2 Ng2+ Be3 Rc2+ Kd1 Re2 Bed4 Rc2 Bg1 Rf3 R1e4 Rc1+
2R4B/2q4B/1nbN4/Np1nrR1p/3rN2n/1bn1k3/b2NPb1B/2Q1N1RK w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 g4 Kd6 Kg2 Kc5 a4 Kd4 a5 f5 a6 c5 d6 h5 d7 b5 a7 c4 g6 b3 g7 b2 g5 c3 g6 c2 Nf3+ Ke4 d4 Qa5 d8B Nf6 g8R Qc7 d5 Nbd7 g7 Nb6 d6 Be6 d7 Bc5 Rg1 Bf2 Nbd2+ Ke3 Kh1 b1B Bh3 Nfd5 Bb2 c1N Ne1 Na2 Qc1 f3 Bg4 f4 Bf5 Bc2 Bh7 Nac3 Be7 Rf8 a8N Rf5 d8N Re5 Bd6 Bb3 Nc6 Ba2 Rb8 Rd8 g8N Nf6 Rg3 Bg1 Bg6 Rf5 Nd3 Nba4 Qb1 Beb3 Be8 Nd1 Rg5 f2 Nb6 f1N Bg6 f3 Bh7 f2 Rc8 Nh2 Na5 Nf3 Bh2 f1B Bc3 Rfd5 Rf5 Nh4 Bce5 Ndc3 Qe1 Ng4 Bh8 Re5 Nf6 Bf2 Qb1 Rdd5 Qb2 Bh3 Rg1 Rd4 Ne1 Bf1 Qc1 Bh3 Nbd7 Nb6 Ne8 Nf6 Nc5 Bg4 Nd6 Bf3+ Rg2 Bb7 Nce4 Bc6 Rg1 Nfd5
nk1n2r1/n2R2Q1/PN1RB1bN/2rq4/B1p4B/b1N4K/1bRpb3/4BBn1 w - - 0 1 illegal: No proof kernel
2N3R1/2Rp2p1/4rN2/1nRB1B1q/1kNn2n1/n3B3/bb1NP1Nb/1rb1K1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 c4 Ke7 b4 a5 h4 f5 h5 a4 c5 g3 h6 g2 b6 d3 b5 a3 b7 f4 e6 a2 b6 f3 c6 Kd6 e7 Kc5 e8B Qg5 c7 Ra5 h7 Ra6 Rh5 Nh6 Nd2 Ng4 Bf7 Kb4 Ne4 Nc6 b8N Nd4 b7 Re6 Be3 Be7 Rc1 a1B Rc2 Bb2 Nf6 Rg8 h8N f2+ Kd2 Qg6 Nf3 g1B Bh3 f1N+ Ke1 Bh2 Rhc5 Qh5 Ng6 Nd2 Ngh4 Nc4 Nd2 Na3 Ng2 Bed6 Qc1 Bdf4 R2c3 Rge8 Bg8 Rb6 Bd5 Ree6 Nc6+ Ka4 b8R Ba6 c8N Bc4 Qb1 Ba2 Na5 Kb4 Rc7 Bh6 R3c5 Rb7 Nf3 Rb5 Nc4 d2+ Kf1 d1N Ke1 Rbb6 Nfd2 Nc3 Qg6 Ncb5 Ra8 Ne5 Bf5 Rb7 Qg3 Ng4 Qf2 Rb8 Qg1 Nd6 Ne7 Ba1 Bg5 Kc3 Nf1 Rb1+ Bc1 Kb4 Rg8 N6b5 Nc8 Rb2 Be3 B6f4 Bf2 Bc1 Nfd2 Rb1 Be3 Bab2
1Rr5/b3p1nr/r2B2R1/1q1K1R1p/3n3P/Nr2q2R/1q3NR1/kB1NrBQ1 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Bb7 f5 Bd5 f6 Ba2 Na3 Be6 Nb1 Bf5 gxf5 Qc8 Bh3 Qc7 Bf1 Qd8 Ke2 Kf7 b4 g5 c4 h5 h4 d5 c5 a5 b6 e3 Kd3 a4 b7 e2 c6 e1R c7 a3 c8B a2 b5 g4 b6 g3 Be3 g2 Bh6 Qd7 Qa4 Ra6 Bg5 Bh6 Qd1 Nc6 b8N Rh7 Ne2 g1Q b7 Qe8 Bd2 Be3 Na3 Nh6 Bb4 Qg3 Rb1 a1Q Nd7 Qb2 Nc5 Qd7 b8R Qb7 Nc4 Qb5 Nc3 Qf4 Rc1 Qe5 Rc2 Bf2 Kd2 d3 N5e4 Ba7 Nf2 d4 Na3 Re3 Rh3 Rf3 Qc1 Qe3+ Kd1 d2 Bd6 Rg3 Qb1 Rg8 Bb7 Rc8 Ba8 Nd8 Be4 Ne6 Qc1 Ng7 Qb1 Ke8 f7+ Kd7 f6 Ke6 f8R Nhf5 f7 Kf6 Rg8 Ke6 Bb4 Ke5 Bed3 Qf4 Ke2 d1R Qa1 Rb1 f8R Qfc1 Kf3 Qe3+ Kg2 Re1 Ncd1 Kd5 Rc6 Ke5 Bb1 d3 Rff6 Kd4 Bd6 d2 Rc5 Qeb3 Rg6 Qe3 Nc3 d1R Re5 Rd2 Nd1 Rd3 Rc5 Ng3 Rf5 Ne2 Rh6 Rac6 Bc2 Ne8 Nc3 Rb1 Rgg3 Qa2 Rhg6 Rb3 Qc1 Qa1 Bb1 Ra6 Qe1 Rd2 Ncd1 Ng7 R3g5 Ng1 Bc4 Re2 Qf1 Nf3 Qg1 Re1 Bf1 Qa2 Nb2 Kc3 Nbd1+ Kd2 Rg4 Kc1 Kg3 Qc3 Kf4 Nd4 Rg2 Qaa1 Ne3 Kb2 Ke4 Qc1 Bc5 Qa2 Kd5 Ka1 Ned1 Qac2 Ng4 Q2b2 Ngf2 Qb4 Bd6 Qe3 Bc4 Qa4 Bf1 Qb5+
r2Br2R/1BR5/2Kppr2/1BNQ3N/4P1R1/1n1r3R/N2qb3/bq1kqRb1 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Ra4 Na6 Ra1 Nc5 Kd2 Ne4+ Ke1 fxg4 Ra5 g3 Ra2 g4 Ra1 Ng5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 Kf7 Kd3 Ke6 Ke4 a5 f4 h5 c4 d3 b4 h4 f5+ Kd6 f6 a4 c5+ Ke6 g6 g2 b6 d2 g7 d6 f7 h3 b7 h2 b8N g3 c6 a3 b5 a2 c7 Ba6 b6 Nh6 g8R Nf5 b7 Nd4 Nd7 Nb3 c8B Qa5 b8R Bg7 Nh3 g1B f8R g2 Bb7 Be5 e3 Be2 Rg4 Bb2 Rfc8 Re8 Rc7 Qc3 Qc2 d1R Qd3 Qd2 Nc5+ Kf6 Kd5 e6+ Kc6 Ke5 e4 Bc3 Qb5 Kd4 Nf4 Ke3 Nh5 Kf2 Rg6 Ke1 Rg4 Be5 Nc3 Bg7 Rb1 a1Q Qa5 Qab2 Ra1 Qb1 Ra3 Bh8 Na2 Ba1 Qb5 Qa5 Qc4 Rd3 Qd5 Kd1 Bg5 Qd2 Be7 Bgd4 Rg1 h1R Bd8 Rhh3 Rh1 g1Q Rbc8 Rdf3 Rb8 Rf6 Rbc8 Bf3 Bb5 Qge1 Rf1 Bg1 Rb8 Be2 Rbc8 Nc1 Rag3 Nb3 Rb8 Rh2 Rh3 Rhf2 Rbc8 R2f3 Be7 Rh8 Rf8 Rd3 Bd8 Rh7 Re8 Re7 Rh8 Re8
2rNn2N/RB1Bp1K1/3N2N1/Nn1b4/1R1b1nR1/1n2P3/2qB2pq/1Q1bb1k1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 b4 d3 c4 h4 f4 g2 c5 h3 b6 h2 b7 d2 b5 d6 c6 g3 g6 a4 e3 a3 g7 a2 c7 Bd7 c8N Qc7 b6 Nc6 b8N Ne5 b7 Ng6 Nf3 g1B Bg2 Bf2 Rg1 h1Q Nh4 Qh2 Na3 Be1 f5+ Kf6 Qc2 Kg5 f6 Kg4 f7 d1N Qb1 Nf4 Nc6 Be6 b8R Bb3 Bf3+ Kh3 Kf5 d5 Nd8 d4 Rb4 d3 Nc4 d2 Ng6 Nc3 Bb7 d1B Bd2 Nf6 g8B Bg7 f8N Nb5 Na5 Bd5 Be6 Qc4 Bd7 Qc2+ Re4 Rg8 Nd6 g2 Nh8 Kg3 Nfg6 Kf2 Kg5 Rf8 Rb4 Re8 Rh1 Rg8 Nd8f7 Rc8 Nd8 Qh7 Rh4 Kg1 Rg4 Qh2 Nac6 Ne8 Na5 Bd4 Rh4 Nf6 Kh6 Qc1 Kg7 Qc2 Qb3 Ne2 Rg4 Nf4 Rc1 a1N Qb1 Qc3 Rc2 Nb3 Ra2 Qc2 Nac4 Nc7 Ra7 Nb5 Na5 Ne8+
2Bk4/R4qrB/QRRKB3/3N1B1n/1N1p1n2/p1qBbq1b/P2pbr2/5N2 w - - 0 1 legal: proof: d4 e5 f4 exd4 b4 c5 bxc5 g5 fxg5 h6 g6 Na6 g7 Nb8 g4 Ne7 g5 Ng8 g6 Bd6 Be3 Bf8 Bg5 hxg5 Kd2 d3 Ke3 b5 Kd4 d5 Ke5 a5 c4 f5 h4 b4 e4 d2 c6 g4 h5 a4 c5 f4 h6 d4 c7 b3 h7 a3 c6 g3 Ne2 f3 Rh6 b2 Nbc3 b1Q Qa4 f2 Nd5 g2 Nb4 Qb2 Ng3 g1Q Bd3 f1B Rc1 Bfh3 Nf1 Qh1 Qa6 Nf6 g8B Ra7 g7 Bcd7 c8N Qc2 c7 Nd5 Rb6 Bhf5 Ne7 Bg4 c8B Qc6 Rc5 Be2 Rc2 Qf3 Rc5 Nf4 Ned5 Ne6 Rc2 Qe7 Rc4 Qa4 Rcc6 Kd8 Bf7 Qe8 g8B Bh6 Kd6 Be3 e5 Nf4 e6 Qb3 Bfg6 Qc2 B8f7 Rg8 h8R Qc3 Rh7 Rb7 Bge4 Rg2 Rg7 Qg8 Bh7 Rf2 Bfg6 Be8 Bge4 Nd7 Re7 Bh5 Bef5 Nf6 Rec7 Bg4 e7+ Ke8 Bfe6 Bh3 Bef5 N6h5 Rd7 Kf7 e8B+ Kf8 Bf7 Ra7 B7e6 Ke8 Rdb7 Kd8 Rb8 Rg7 R8b7 Qe8 Ra7 Qf7
kr2nN2/1r2qpBp/q3B2b/1RPBQ1B1/npN1KR1R/B2n1r1N/8/1b6 w - - 0 1 illegal: No proof kernel
k1B1K1nR/b5NB/3b1P1p/p1nb2B1/1bR2B1b/B2NR2p/Nr2q1Q1/2r5 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 Kb7 g4 a5 b4 h6+ Kg6 e5 Kf7 h3 f4 c4 d4 c3 d6 c2 d5 e3 b6 e2 d7 e1B g5 e4 f5 e3 g6 e2 g7 Qf6+ Ke8 Ra6 d8N+ Ka8 b7+ Ka7 d6 Bc3 d7 e1B b5 Bcb4 Ra4 Bh4 Qg4 Rh7 Ba3 c1B Qg2 Qb2 Ne6 Bfc5 d8B Qa1 Nf3 Qd4 Bg5 Rb6 f6 Qg1 Ne5 Na6 b8R Bc3 Rc4 Bg3 Nd3 B3b4 Nc3 Bh2 Na2 Bhd6 Be2 Qf2 Re1 Bcf4 Bg4 Bg3 Re3 Qe2 Bf5 Rc6 Ra8+ Kb7 b6 Bh4 Bg4 Bd4 Bf5 Nc5 Bg4 Ne7 g8B Rf7 Ng7 Be6 Bh7 Bd5 Rd8 Ng8 Bc8+ Kb8 b7 Rb6 Qg1 Rc7 Qg2 Ka7 b8B+ Ka8 Rd7 Bbc3 Rde7 Rb2 Rf7 Bb4 Rf8 Ne7 Rh8 Ng8 Bd7 Na6 Bc8 Ba7 Rg4 Rc3 Rc4 Nc5 Bc7 Rc1 Bb8 Bf8 Bbf4 Bd6
2n5/N1nn1Pbk/2qb1p2/1R1NN2b/p1BRKQ2/1r4Bp/2rn1R2/BB5B w - - 0 1 illegal: No proof kernel
2KN4/2BbRq1R/p1R3PB/b5nn/bNN3N1/1qQB3k/1p2pr1N/4br2 w - - 0 1 illegal: No proof kernel
1n3r2/N1N4N/R1p1N3/qR1bnp2/Q1P4k/2Rn2bN/2pKBb2/Bq1qB3 w - - 0 1 illegal: No possible last move
b1Kq1Q1b/Bp4q1/1q2N3/4p2k/B3RRrN/1P1Bb3/r2Bp2n/Br1NR3 w - - 0 1 illegal: Other
3rN1r1/3rpRbb/N1pb2BN/q1B1Rp2/3R1QbK/3N4/2knNP2/B1b5 w - - 0 1 legal: proof: c4 g5 d4 d5 a4 dxc4 e4 b5 axb5 Qd5 h4 Qd8 d5 gxh4 d6 Nc6 Ne2 Nb4 Ng1 Nd5 exd5 Bh6 Be3 Bg7 Bc1 Bf8 b4 Kd7 g4 a5 b6 h5 g5 a4 b7 f6 b8B a3 b5 h3 g6 h2 g7 c6 b6 h4 b7 c3 Nf3 h3 Be3 a2 Qc1 c2 Bc5 Qa5+ Ke2 Qc3 Qf4 c1B Ne5+ Kd8 d7 Qb2+ Kf3 Qd2 Kg4 Qa5 Nc3 Ra7 Rb1 a1B Bd3 Ra8 Bba7 Kc7 b8N Bab2 Be4 Ba3 Rb5 Bb4 Rg1 h1R Ne2 h2 Bg6 Bba3 Rg3 Rd1 Rf3 h1B Bd4 Kd6 Na6 Bg2 Ba1 Bh3+ Kg3 Bg4 d8N Bcf5 Ne6 Rd8 Nec7 Rd3 Bf7 Bh7 Kh4 Rd1 Bg6 Rd7 Qc4 Bc5 Nd3 Rg1 Rf4 f5 Rd4 Nf6 g8N Rd1 Nh6 Rg8 Qb4 Rd8 Qd2 Bg7 Ne8+ Kd7 d6 Ke6 d7 Ne4 Bb6 Bd6 Qf4 Nd2 Bc5 Rc8 Re4+ Kd5 d8R Rb8 Re6 Rb7 Rf6 Rd7 Bcd4+ Kc4 Re5 Kb3 Rf7 Kc2 Bc5 Rg1 Rb8 Rg3 Rb4 Rd8 Rd4 Rf3 Nb2 Rb3 Nd3 Rb7 Qg3 Ra7 Qf4 Rad7
B3qb1r/BQ4B1/2N1R1nB/1qp1p1R1/k1Ppn3/4N1R1/3qB2K/2q1r1nN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 d5 gxh4 Bd2 Bb7 Bc1 Bc6 dxc6 Qb6 Nd2 Qc7 Nb1 Qd8 f4 h5 Kf2 a5 g4 e5 Kg2 d5 c4 h3+ Kh2 h4 b4 a4 f5 a3 c7 Kd7 c8B+ Kd6 f6 d4 g5 e3 g6 a2 f7 e2 b6 Kc6 b7 e1N g7 Kb6 b5 Ka5 b6 Qc7 Be2 Kb4 Na3 Ra4 Bh6 Nc6 b8N Nf6 g8R Qd8 b7 Ne7 Rg5 Ne4 Nc2+ Kb3 Bcg4 Ng6 Bgf3 Qe8 Nc6 Ra3 b8B Ka4 Rc1 a1Q Ba7 Qc3 Ne3+ Rb3 Rc2 Qd2 Qb1 Ra3 Bg2 Ra1 Qb7 Rc1 Rc3 Rd1 Nf3 Rb1 Rf1 Ra1 Ng1 Nf3+ Kh1 h2 Nh3 Ng1 Rf6 Rc1 Nf2 Re1 Bgf3 Nd6 Kg2 h3+ Kg3 h1Q Re6 h2 Bd5 Qe4 Nh1 Qb1 Rd3 Be7 f8B Qb5 Bfg7 Bf8 Nf2 h1Q Qb8 Qc8 Ng2 Be7 Na5 Qce8 Ba8 Nf3 Qb7 Rb1 Nc6 Bf8 Rc3 Qf1 Nh1 Ng1 Kh2 Ne4 Rcg3 Qfd1 Ne3 Q1c2 Kg2 Re1 Kh2 Qcc1
3q1r1q/4qR2/pQ1p4/2r1B3/KbNPBbN1/2R2pBb/4nb1N/BRB3k1 w - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 hxg4 a5 Qg5 a6 Nc6 b6 Nd8 b5 Nb7 axb7 Qd8 b8B Ke7 h4 Kd6 d4 Kd5 Kd2 Ke4 Kc3 f5 Kb3 g5 h5 c5 e3 g3 b7 c4+ Ka4 f3 b6 a6 h6 f2 h7 g2 Bb2 g4 Bf4 c3 b8B g3 b7 c2 Bbe5 c1B b8B Nh6 Ra3 Bb4 Qb3 Rf8 Nf3 g1B h8R g2 Ba1 Bcd2 Bg3 f4 Nh2 f3 Rh7 Nf5 Rf7 Qe7 Bc4 f1Q Qb2 Qe2 Rc3 Qd8 Na3 Bf2 Rb1 g1Q Bef4 Bc1 Bbe5 d6 Bg5 Qh1 Bd3+ Kd5 Bc2 Be6 Bh6 Rc8 Nc4 Rc5 Bd3 Nh4 Bh7 Bh3 Bhf4 Ng6 e4+ Ke6 Be3 Nf4 Bd2 Qe3 Bg6 Ne2 Bh7 Ba5 Qb6 Bb4 Bg6 Qeg5 Bh7 Qge7 Bh6 Bca3 Bc1 Bb2 Bef4 B2a3 e5 Kd5 e6 Bb2 Be5 B2a3 Bh6 Bc1 Bf5 Bf4 Bg5 Qb7 e7 Qbc7 e8N Qce7 Bd7 Ke4 Bc6+ Rd5 Rc2 Kd3 Nf6 Rc5 Nfg4 B2e3 Na3 Bf2 Rc3+ Kd2 Rb2+ Kd1 Be4 Ke1 Nc4 Bg2 Nf1 Qh8 Nfh2 Bh3 Rb1+ Bc1 Rbb3 Be3 B5h4 Bg5 Bgf4 Bh6 Bc1 Bf4 Rb1 B2g3 Nge3 Kf2 Neg4+ Kg2 Nf1 Kg1 Nfh2 Be1 Bg3 Bf2
2b1Q3/1Bqpp3/p1N1B1qB/4b2k/P1Kr4/1BnRNR1B/1Rb2N2/r3br2 w - - 0 1 legal: proof: c4 g5 d4 f5 h4 gxh4 b4 c5 dxc5 Nc6 e4 fxe4 b5 Nf6 bxc6 Rg8 c7 Rh8 c6 Ng8 c5 Bh6 Ba6 Bg7 Bf1 Bf8 Ke2 Kf7 a4 Kg6 f4 h5 g4 b5 g5 a6 f5+ Kg7 g6 e3 Kd3 Kh6 g7 h3 f6 h2 f7 b4 Nd2 b3 Kc4 b2 Rb1 h4 Nh3 e2 Nf2 e1B Bh3 Kg5 Qh5+ Kf6 Nf1 Ba5 Bh6 Be1 Ne3 Qe8 Rg1 h1Q Rg3 Qh2 Be6 h3 Qg6+ Ke5 Rf3 Nf6 g8B Bg7 f8R Nd5 Qf7 Qd8 Qe8 Qg2 Rd1 b1R Rd3 h2 Bh3 h1B Bge6 Qg1 Rg8 Bf6 Rg2 Ra1 Rh2 Qg6 Rg2 Bb7 c8N Qc7 Na7 Bc8 Rh2 Nc3 Rg2 Qd6 c7 Rb8 c6 Rf8 Rh2 Rb5 Rg2 Rd5 Rh2 Bg7 Rg2 Rf5 Rh2 Kf6 Rg2 Bb7 c8B Bh8 c7 Rd4+ Kb3 Be4 Bb7 Qh2 c8B Qc7 Bbd5 Rf4 Rd2 Bd3 Bc4 Bc2+ Kb4 Rf5 Rd3 Rff4 Rh2 Bg2 Nc6 Rf5 Bf8 Kg5 Bh6+ Kh5 Bb7 Be5 Kc5 Bh1 Bb3 Rg5 Nfd1 Rg1 Re2 Rf1 Nf2 Bb1 Ra2 Bc2 Rb2 Rf4 Rg3 Re4 Bc8 Qb8 Nd4 Rf4 Kc4 Bc6 Rf3 Qc7 Bb7 Rg4 Ba8 Re4 Kc5 Bb7+ Nc6 Bc8 Bb7 Nd1 Kd5 Rd4+ Kc5 Rd5+ Kc4 Nc3 Bef5 Rd6 Be6 Rd4+
NNnbN3/n5pq/Bq5R/1pB1B1rp/3bN2k/5bb1/1PR3n1/KRN3Q1 w - - 0 1 illegal: No proof kernel
1Bbrk3/b5Q1/2N5/N1N2r1q/3pBp1R/p1bp2RR/2P2Kn1/q1NBnN2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 g5 b4 d5 e4 f5 h6 a5 h7 a4 h5 a3 h6 f3 e5 d3 b6 g4 b5 g3 b7 g2 b6 d4 e6 Qg5 e7 Kf7 e8B+ Ke7 Be2 Nd7 b8N Ra4 b7 Qg4 Bf4 Ra8 Rh4 Ra6 Nc6+ Ke6 b8N Bc5 Nd2 Kf6 Na5 Ke7 Bg6 Qh5 Nf1 Ba7 Kf2 Ne5 Nd7 Nf6 Nc5 Rd8 h8R Nd5 h7 Ne3 Qd2 Rc6 Bd1 Rf6 Ne2 Rf7 Nc1 g1B+ Ke1 Bh2 Kf2 Ng2 Rg8 Rff8 h8N Rf6 Nf7 Bg3+ Kg1 Be1 Rh8 Ng4 Bb8 f4 Ne5 Nh2 Be4 Rf5 Nec6+ Kf7 Qf2 Bc3 Rh7+ Kf8 Qg3 Ke8 Qg7 f2+ Kh1 Qg4 Rh3 Nf3 R7h4 Qh5 Rb1 Nfe1 Rb7 Bb6 Rf7 Be6 Rf6 Bc8 Rg6 Ba7 Rgg3 Qh7 Ne3 f1Q+ Kh2 Qe2 Kg1 Qeh5 Nf1 Qg8 Kf2 Qa2 Qg5 Qb2 Qg7 Qa1
3R3N/2K2pNB/3BP3/qqrQnR2/8/n2pBr1p/1k2pb1R/NN3Nqb w - - 0 1 illegal: No possible last move
bRn1RR1r/3KP2N/1Bn2qqN/4BNBB/nQp1k1p1/p1B5/3b1p2/3r4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 e5+ Kd7 h5 a5 d6 Ke6 d7 Kd5 b6 a4 b7 a3 b5 g3+ Kf3 c4 b6 g2 e6 Nh6 e7 Qc7 d8N Na6 b8R Qe5 b7 Qe1 Qd2 Nc7 Be2 Na6 Nf7 Rh7 Nh3 g1Q Qb4 Qd1 Nd2 Qc2 Ne4 Qb2 Ng3 Ng4 h6 Rh8 h7 Nc5 Nh6 Na4 Rb1 Be6 Re8 Rd8 b8B Bd7 Bd2 Bc6 Be5 Ba8 Rh2 Bg7 Rf2 Bf8 Qc3 Qa1 Rb8 Qgb1 Bc1 Qb6 Qb4 Qg6 Bd1 Qb2 Qc3 Qbb6 Qb4 Qbf6 Rf1 Nf2 Be2 Ne4 Rf2 Nd6 Bd2 Rg8 h8B Nc8 Bg7 Rh8 Bc3 Qa6 Bgf6 Rd6 Kg2 Rd8 Bh5 g4 Ng5 f3+ Kh2 f4 Nh7 Rd6 Ngf5 Ke4 d5 Rd8 Bh4 Qaf6 d6 Bg7 Rf1 f2 d7 f3 Kg3 Bf8 Bg5 Bg7 Rb1 f1N+ Kh4 Ng3 Rf1 Ne2 Rf2 Nd4 Kg3 Kd3 Kf4 Nc6 Rf1 Kc2 Ke4 Bf8 Kd5 Kd3 Bgf4 Qh4 Bg5 Bg7 Rf2 Bf6 Ke6 Ke4 Rd2 f2 Rf8 Re8 d8B Bg7+ Kd7 Bf6 Bb6 Rd8+ Kc7 Rd5 Rb2 Rd1 Rd2 Bg7 Rdd8 Bf6 Rde8 Bg7 Bge3 Bf6 Bed2 Bg5 Kd7 Be3 Ng7 Qhf6 Ngf5 Bd4 Bg5 Be3+ Bd6 Bd2 Bdf4 Rg8 Bfe5 Rh8
3Rr2k/6pB/3n2pR/b2bb3/RB1br1PN/p2pN3/2q2BqQ/1R3RKN w - - 0 1 illegal: No proof kernel
1BR3K1/pBrp1B2/n6b/3N4/Pr1pq1qB/k2n2B1/1p2pQNR/2bR2N1 w - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 c4 b6 c5 Ba6 b3 Bc4 bxc4 hxg4 Kd2 e5 Kd3 Ke7 Ke4 g5 h4 g3 f4 b5 a4 g2 h5 b4 c6 Kd6 c5+ Ke7 f6+ Ke6 f7 g4 h6 g3 h7 b3 c7 b2 c8B Bh6 f8N+ Ke7 Kf5 e4 Kg6 e3 f5 Qc7 c6 Kd6 Kf7 Kc5 f6 Kb4 Nc3 Qe5 c7 Nc6 Qf3 Bf4 Bb7 Re8 c8R Nb8 Bc4 e2 Ne6 Qe4 Qf2 Ne7 Rh2 Bh6 Bg5 Nd5 Nf4 Na6 Rd1 Ka3 Bh4 Ndb4 Ncd5 Nd3 Ba2 Rhg8 h8B Re6 Bg7 Rb6 Bf8+ Rb4 Bd6 Re8 Bb8 Re6 Bc4 Rc6 Kg8 Rc5 f7 Rc7 Ne6 Bc1 f8B Bh6 Bd6 Bc1 Nh3 g1Q Nef4 g2 Bb3 Qe1 Ba2 g1B Ng2 Qd2 Bdg3 Qdf4 Nb6 Qff5 Bf7 Bh6 Nd5 Qff3 Qe1 Bge3 Ng1 Bc1 Qf2 Qfg4+
1bB1Rbn1/nN1Nqr2/2BB4/nB2nbNR/K4k2/1br4Q/P1Q3B1/8 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 gxh4 b4 axb4 d4 c5 dxc5 d5 cxd6 Qd7 c5 Qd8 c6 Qc7 dxc7 Ra4 Be2 Ra5 Bf1 Ra8 Kd2 Kf7 Kc2 Kf6 Kb3 Ke5 g4 h5 g5 b5 g6 h3 g7 h4 f3 h2 f6 h3 f7 Nd7 Qd2 Ra7 Kb2 b3 Qc2 b4 Nd2 Kf4 Bg2 e5 Rb1 e4 Nc4+ e3 Nd6 Rh7 Nb7 Ne5 Ra1 Be6 c8B Bf5 c7 Ra5 Rb1 Rc5 Bd7 Rc4 Bd2 Rc3 Be1 e2 c8B Rd3 Bf2 e1B Bb5 Rc3 Bc5 Bh4 Re1 Bg3 Kb1 b2 Bd6 Bf2 Bc6 Ba7 Re3 Bb8 Re1 Kg3 f4 Kg4 Nf3 Kg3 Rhg1 h1Q Ng5 h2 Rgf1 Qg1 Re2 Qb6 Rh1 Qc7 Ree1 Qe7 Re4 Be6 f5 Bb3 Re3+ Kf4 f6 Nh6 g8B Rg7 Rhe1 h1B Rh3 Rh7 Bb5 Rg7 Bgc6 Be4 Rh5 Bf5 Bh7 Ng8 Re3 Bh3 Bhe4 Bf5 Bg2 Rh7 Qd3 Bh6 f8Q Rf7 Qe8 Bf8 Qd7 Bd5 Qd8 Qe6 Be4 Bh6 Qe2 Re7 Bc5 Nf3 f7 Rc2 f8N Rf7 Bed3 Rc3 Qf1 Qd6 Re8 Qe7 Qh1 Ne5 Be4 Rb3 Kc2 b1N Bf1 Nc3 B6d7 Nb5 Qh3 Na7 Bfb5 Rc3+ Kb2 b3 Ka3 b2+ Ka4 b1N Bg2 Bg7 Bdc6 Na3 Qd7 Bde6 Qd1 Nac4 Nd7 Bf8 Qc2 Na5 Bd6 Bb3+
7K/1qr1BQ2/1B2Q3/R2QQ3/rbr2Rb1/2r1NQ1N/2Pq4/nk2bNq1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 e4 c5 exf5 Nh6 d4 cxd4 a4 Ng4 a6 Nc6 a5 Nh6 a7 Ng8 a6 Na5 Bc4 Nb7 axb7 Nf6 Bg8 Nxg8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 b8N e5 f4 b4 h4 d3 h6 g4 h5 d2 h7 g3 h6 b3 Ra5 b2 Rh4 g2 Qe2 d1R Na6 Rd3 Nb4 Rc3 Nd2 b1Q Qf3 Ne7 Nh3 g1Q Nf1 Nc6 Be3 Nd4 Bf2 Nb3 Bb6 Rg8 h8Q+ Rg7 h7 Na1 Qg8 d6 Kd5 e4 h8Q e3 Qhh5 Rgc7 Qe6+ Kg7 Kd4 d5 Ke5 d4 Nd5 e2 Nde3 e1B Qfd5 Bb4 f6+ Kf8 f5 d3 f7 Kg7 Re4 d2 Rf4 d1R Qhf3 Rd4 f6+ Kg6 f8Q Rdc4 Qff7+ Kh6 Kf5 Qd6 Qe5 Qd2 Qfd5 Qb2 Qg8 Kh5 f7 Qb1 Kf6+ Kh6 Qe7 Bg4 Q7e6 Qb2 Ng5 Kh5 Kg7 Kh4 Nh3 Qb3 Nh2 Kg3 Kh8 Qb2 f8B Qb1 Nf3 Qb3 Qgf7 Qb2 Nhg5 Kf2 Nh2+ Ke2 Nh3 Qb3 Nhf1 Qb2 Nf5+ Kd1 N5e3+ Kc1 Qf3 Kb1 Qfd5 Rb8 a8Q Rbb7 Be7 Ra7 Rb5 Ra4 Ra5 Bd6 Qac6 Qb5 Qf3 Bb4 Qce4 Qa6 Q4d5 Qb7
2k1NBQr/K4n1r/2Nnr2B/2P1QQn1/2r5/br3Q2/1qQRr3/4R2R w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 e4 c5 exf5 b4 d4 cxd4 a4 b3 a6 Bb7 Bd3 Bc6 Be4 Bb5 axb5 Nf6 b6 Ng8 Bc6 Ra7 Ba8 Rxa8 Ke2 e5 Kd3 d5 h4 Kd7 f4 g5 c4 b2 h6 g4 a7 g3 h7 g2 f6 Kc8 b7+ Kd7 f7 Na6 b8Q Nh6 h5 Qb6 f5 Bb4 f8Q Ba3 c5 Nf7 h6 Nc7 f6 Nb5 Nc3 b1R Nf3 g1N Ne4 Nh3 Qc2 Nhg5 Nd6 Rb2 Ne8 Nbd6 Rd1 Rb5 Rd2 e4+ Ke2 e3 Kd3 e2 Ne5+ Ke6 Qg8 e1R Nc6 Kd7 Qg6 Re6 Qf5 Rb4 Rb1 Rc4 Ra1 Rg8 h8Q Rg7 h7 Qb2 Qbb3 Rb8 a8Q Kc8 Qa2 Rg8 Qg7 Rf8 h8R Rg8 Rh1 Rh8 Qg8 Rh7 Qe5 Rh8 Qab1 Rh7 Ke2 d3+ Ke3 d4+ Kf4 Nh6 f7 Rh8 f8B Nhf7 Nd8 Rh7 Qf3 Rb3 Nc6 Rh8 Rdd1 d2 Qcf5 Rh5 Qbc2 Rh8 Ra2 Rh7 Rde1 d3+ Ke3 d1R Bd2 Rcc3 Kd4 Rc4+ Kd5 Rh8 Be3 Rd2 Bf4 Re2 Bc1 Nh3 Bch6 d2 Nb4 d1R+ Kc6 Rf2 Kb6 Re2 Ka7 Nhg5 Nc6 Rdd2 Raa1 Rdd4 Rad1 Rh4 Rd2 Rhh2 Bhg7 R2h7 Bh6 Rg2 Qh5 Rf2 Qhf3 Re2
1r1Bn3/1P2b3/npK1n1kB/Rn5N/3RRqqQ/6Np/2R2BRb/2Q5 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 a4 Nb8 a5 Bh6 Qc2 Bg7 Qd1 Bf8 b4 b6 a6 Bd7 b5 Bc6 Bc4 Bb7 axb7 a5 Bb3 Ra6 bxa6 a4 Qg4 axb3 Qe2 Qd7 Qd1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 h5 g4 c5 d4 b2 f4 h3 g5 h2 g6+ Kf6 d6 h4 Kd5 c4 g7 e4 d7 c3 a7 c2 a8R h3 R8a4 e3 Nd2 b1Q Ne2 Na6 Kc6 Qe8 d5 Qb8 d8R Qa8 d6 Nh6 g8R Nc5 d7 Qb8 Ne4+ Kf7 f6 Be7 f5 Qf4 N4g3 Na6 Nh5 Qbb4 Neg3 e2 Be3 e1N Qc1 Nf3 Bf2 Ng5 Ra5 Ng4 R1a2 Qbd4 Re1 h1N Re4 Ne6 Rg5 Nh2 Rg4 Nf3 Rc8 Re8 d8B Qd1 R2a4 Qg1 Rad4 Rf8 Qa1 c1B Rg5 Bca3 Qc1 Bad6 Rg8 Nfg5 Rg6 Ng7 Rc7 N5e6 Rg4 Kg8 f7+ Kh7 f6 Ne8 Rgg5 Rg8 f8Q Qd1 f7 Qdg4 Kd5 Be5 Rc2 Bb8 Kc6 Bbd6 Ne2 Ng3 Rg6 Nf5 Neg3 Bc7 Rg5 Nfd6 Rg6 Bg5 Qe7 Nb5 Qb4 Bb8 f8B Be7 Bh6 Bbd6 Qc5 Rf8 Qg5 Rh8 Qh4 Rf8 Rf6 Bc7 Rf5 Kg6 Rg5+ Kf7 Nh1 Qe3 N1g3 Nf6 Nf1 Qg2 Ra1 Bh2 Ra5 Qf4 Bc7 Rb8 Bd8 Ne8 Rg8 Qgf3 Rg2 Q3g4 Nfg3 Kg6
2kBK2N/4b3/P1N1qb2/qQb1N1bB/Q6p/1RQNb1r1/N4p2/4rR2 w - - 0 1 legal: proof: c4 e5 d4 a5 e4 d5 b4 axb4 f3 dxc4 d5 Qd7 d6 Qb5 Be3 Qd5 exd5 e4 Bg5 Na6 Bc1 Nb8 Be2 f5 Bf1 e3 g4 Nf6 h3 Ne4 fxe4 g5 Qe2 f4 Qd1 Bf5 gxf5 Nc6 h4 g4 Qf3 Nd8 Qe2 Ne6 Qd1 Ng5 hxg5 Ra6 Nd2 Ra3 Nb1 Ra8 Ke2 Kd7 a4 h5 f6 b5 e5 c5 a5 g3 Kf3 h4 Kg4 c3 Kf5 f3 Kg6 c4 Kf7 f2 g6 g2 a6 c2 e6+ Kc8 e7 e2 g7 e1B g8Q b3 d7+ Kb8 d8N c3 e8Q b4 d6 b2 d7 b3 Ne2 g1B Ra3 Rh5 Qh8 Be7 Nf4 Re5 Be2 Bh2 Bh5 Ra7 Bd2 c1B Rf1 c2 Nc3 b1Q Nd3 b2 Bg5 Be3 Na2 c1B Qa4 B1b4 Rb3 Qa1 Nc6+ Kc7 d8N b1Q Qg7 Kc8 Qb5 Re6 Nce5 Bbc5 Qec6+ Rc7 Ke8 Qc3 f7 Qa5 f8N Qa1 Nef7 Qf6 Nd7 Be5 Nh8 Qh6 Qe4 B5f6 Qea4 Re4 N7e5 Rd7 Nf4 Rd3 Ndc6 Rc3 Nfd3 Qg6+ Qf7 Qf5 Qfc4 Qe6 Bh6 Beg5 Bf8 B1e3 Qd4 Rc1 Qc3 Rg4 Bg7 Rg3 Bh6 Re1 Bf8 Bed6+ Be7 Qd5 Bd8 Bde7 Qb2 Qc4 Qc3 Qe6
2QR1b2/N5qn/K6N/1b4Q1/1PBb2bR/q2Nb2Q/Bpp1N2N/k2b4 w - - 0 1 legal: proof: f4 e5 c4 exf4 a3 d5 cxd5 b5 Qc2 b4 Qb3 Kd7 Qd1 Ke8 Qb3 a5 Qc3 a4 Qd4 b3 Qc4 Ra7 Qc2 Rb7 Qd1 Rb4 axb4 a3 Qc2 a2 Qd1 Qf6 Na3 Qe7 Nb1 Qd8 g4 f5 d3 g5 Nf3 Nc6 Bg2 Nce7 Ng1 f3 Be3 f4 Bc5 Nf5 gxf5 g4 Be7 h6 Bg5 hxg5 Bf1 Rh6 Kf2 Ra6 Ke1 Ra3 bxa3 Be6 Nh3 Bd7 Ng1 Bc8 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 Kb5 Kd4 e4 c5 h4 b2 e5 f2 h5 g3 e6 f3 f6 g4 e7 g2 e8Q g3 h6 c4 a4 c3 d6 c2 f7 Bb7 d7 Nf6 a5 Ba8 h7 Qc8 h8Q Bb7 d8N Bh6 f8N Qh3 a6 Qg4 a7 Qf4 a8B Qb8 Nd2 Kc3 d4 Qd6 d5 Be3 Nf7 Qe5 Rh4 Bc8 Bc4 f1B Qc1 f2 Ng6 Be2 Ndf3 f1B Nh6 Nh7 Nf4 Bd1 Nd3 Qg7 d6 Bg4 d7 Bfe2 Rb1 a1Q d8N Qa3 Nh2 Bc5 Ba2 Bf8 B8d5 Bd7+ Nc6 Beg4 Qc8 Be8 Ngf3 g1B Qg5 g2 Nd4 Be3 Bdc4 g1B Kb6 Bed7 Na7 Ba4 Ka6 Bgf2 Ndf5 Bd4 Ng3 Bfe3 Rc1 Bdf3 Rf1 Bd1 Rf7 Kd2 Rd7 Kc3 Rd8 Kd2 Nf2 Kc1 Ne2+ Kd2 Ng8 Nf6 Qhh5 Nh7 Nh6 Bf4 Qf7 Be3 Ng1 Kc1 Qf3 Nf6 Qh3 Nh7 Bab3 Kb1 Nd3 Ka1 Ne2 Bd2 Ba2 Bf4 Qgf5 Bfe3 Qg5 Bb5+
1nKNB3/1p1RR1q1/4N2p/2B1bn2/p2q2Pk/r1Nb1b2/B1Q3Q1/2N1N3 w - - 0 1 legal: proof: b4 a5 h4 f5 e4 g5 exf5 gxh4 c4 d5 cxd5 c5 bxc5 Bd7 a4 Ra6 Bxa6 Bxa4 Bf1 Bb5 d4 Kf7 Kd2 Kf6 Kc3 e5 g4 h6 f4 e4 c6 a4 d6 e3 Kb4 h3 Kc5 e2 d5 e1Q c7 h2 Kb6 Qee7 d7 Bd3 d6 Bc2 Nf3 Nc6 Ne1 Qde8 d8Q Nb4 c8B Nc6 d7 Nb8 Kc7 Nc6 Ba3 Qf7 Bb5 Bd3 Bc5 Na5 Nc3 Qb3 Qc2 Rh7 Rd1 Kg7 f6+ Kg6 f7 Qa3 f5+ Kg5 f6 Bg7 f8N Bh8 f7 Nc6 Ne6+ Kh4 f8N Qg5 Nf4 Ne5 N8e6 Ne7 Nfe2 Qb2 Nc1 Rf7 Bc4 Qa1 Ba2 N5c6 Rf1 Rf8 Rf7 Nf5 Re7 h1B Qe8 Bg7 d8N Nb8 Bd7 Be5+ Kc8 Bf3 Qg2 Qf6 Qg6 Qg7 Be8 Rf6 Nc7 Rb6 Nce6 Rb3 Rd2 Ra3 Qh7 Bde4 Rdd7 Bd3 Qg6 Ne3 Qe4 Nf5 Qee2 Qb2 Qd2 Qb4 Qc2 Qd4
Q6R/q1N5/2K1B1p1/1N3prP/B2p1q1r/2NbRR1R/2Qr2k1/3bqR2 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 e6 axb5 c6 e5 c5 d4 Bd6 exd6 cxd4 g3 f5 Be3 h6 g4 e5 g5 e4 Bc1 Nf6 gxf6 Nc6 Be3 Ne5 fxe5 Rf8 Bc1 Rh8 Bg5 hxg5 Ke2 Kd7 b4 Ke6 h4 a5 c4 g6 d7 e3 Kd3 e2 h5 e1Q b6 g4 b5 g3 f7 g2 f8N+ Ke7 c5 a4 e6 Kf6 e7 Ke5 e8R+ Kf4 b7 Kg3 b8Q+ Qc7 d8R a3 b6 a2 b7 Rh7 c6 Bd7 Ne2+ Kf3 Qc2 g1Q Nec3 Re7 Ne6 Bc8 Nb5 Ra6 Qa8 Qg2 b8R Qa7 c7 Qg4 N1c3 Rd6 Rh3+ Qgg3 Rb1 Ba6 c8B a1R Nc7 Re4 Be6 Rh4 Rh8 Ra4 Rde8 Rg4 Ra1 Rg5 Be2+ Kg2+ Bf3+ Kf1 Re7 Qf4 Bd1 Rd8 Rb6 Kg1 Rc6 Rd6 Rc4 Rd8 Rb4 Rd7 Rb3 Qc1 Nb1 Qf2 Bf7 Kg2 Re2 Re7 Qc3 Ra2 Bc2 Re5 Be6 Re4 Qc4 Qf1 N5a3 Rh4 Rc3 Qc1 Ba4 Qf4 Re1 Rc2 Rf1 Qe1 Ra2 Bb7 Nab5 Rf2 Re2 Bc6 Kc2 d3+ Kb3 d4 Kb4 d2 Rcf3 Qa5+ Kc5 d1B Ree3 Be4 Qc2 Rd2 Nc3 Bd3 Kc6 Qa7
5Q2/p1NQR2n/r1rR1Q1N/2K2NPp/k2pQ3/1p6/3rB2p/2nQ2Bb w - - 0 1 legal: proof: e4 c5 c4 g5 d4 cxd4 h4 f5 exf5 gxh4 Be2 d6 Bf1 d5 a4 b5 Ra3 b4 Ra1 Qb6 cxd5 Qb5 axb5 Bh6 Be3 Bg5 Bc1 Bd2+ Ke2 Bc3 bxc3 Bb7 Ke1 Bc8 Kd2 Kd7 Kd3 h5 Kc4 e5 g4 b3 f4 e4 d6 e3 b6 Kc6 g5 e2 f6 e1R f5 h3 b7 h2 f7 Na6 b8Q Re7 f8Q Nc7 f6 Bd7 f7 Nd5 Be2 Nf4 Na3 Nd5 Qbe8 Rh7 Nf3 Re5 Be3 Rd8 Re1 Kb6 Nb5 Nge7 Nh4 Rf5 Ra6+ Kb7 Kc5 Be6 d7 Rf2 c4 Ng8 Rd6 Nb4 Nc7 Na2 Nf5 Bd5 Qe4 Rb8 d8Q Bc6 Qd7 Nc1 Nh6 Nf6 Qh8 Rg7 f8Q Nh7 Qf6 Rg2 Bg1 Rg6 Qhf8 Bd5 Kb4 Bc6 c5 Bd5 c6+ Kb6 Qb1 Bf3 Qe4 Rf2 Kc4 Ka5 Kc5 Ka4 Nb5 Rf1 c7 Rb6 c8N Rf2 Ne7 Bh1 Nef5 Rg2 Bd3 Rd2 Be2 Ra6 Nc7+ Ka5 Q6e7 Na2 Qeb1 Bb7 Bg4 Be4 Rc6 Rd6 Qef6 Bh1 Re7 Ka4 Be2 Nc1 Qe4 Re6 Rd6+ Ka5 Rd5 Reb6 Qdc8 Ka4 Rd6 Ka3 Qce6 Ka4 Qd7+ Rc6+
k7/1rb3bN/2RB1n1R/BnN3r1/q1Q2QR1/qrRr2R1/1P2N1rK/2b5 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 Kf2 Kd7 h4 Kc8 d4 Kb7 e4 a5 d6 g5 h5 c5 d7 c4 e5 c3 e6 a4 e7 c2 e8R a3 d5 a2 f6 Rh7 d6 Nc6 f7 Rg7 h6 Ra7 b6 Nd4 h7 Nb5 h8R Qa8 d8B Nf6 Ne2 g3+ Kg1 g4 d7 g2 R1h4 f2+ Kh2 g1R Re3 f1R Qd3 f3 Nd2 f2 Ne4 Rd1 Qc4 f1R Rg3 Rf3 Bf4 Rb3 R8h6 Rdd3 Rc1 a1Q Qc7+ Ka6 b7 Qa3 b8Q Rb7 Qc3 Bd6 f8N Rg5 Nh7 Bf8 Bdc7 Bg7 d8R Qa7 Rc8 Qd4 Ba5 Qda4 Qbe5 Ka7 Rc6 Ka8 Rf1 c1B Qc4 Rd5 Rc3 Rd3 Rf3 g3+ Kh3 g2 Rg3 Rf1 Rg4 Re1 Nc5 g1B Re3 Bf2 Kh2 Rg1 Reh3 Bfe3 Rhg3 Bd4 Qe3 Be5 Qee4 Bb8 Bd6 Bc7 Qf4 Rg2+
1Q3R1n/1Q2Q3/rBQ2B1P/3r2R1/3b2rr/1q1R2n1/1NQK1kb1/2rq1qN1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 Kf7 h4 c5 b4 e5 d6 a5 g6+ Kf6 h5 Kg5 f6 g3 f7 a4 b6 e4 d5 e3 g7 c4 d7 e2 d6 Kg4 b5 f3 b7 f2+ Kd2 f1Q b6 c3+ Kd3 c2 Rh3 a3 Ke3 a2 Kd2 g2 Ra3 Nf6 g8R+ Bg7 f8B Ra5 Rc3 Rd5+ Rd3 Qf3 Nc3 Kg3 Be7 Kf2 Rf8 Nc6 b8Q Ne5 b7 Ng6 Na4 Qb6 d8Q Qb3 Qe8 Bh3 d7 e1R d8Q Re4 Qdc7 Rg4 Nb2 Rh6 Qa4 Nh8 Qac6 Rh7 Rb1 a1R Bd8 Rh6 Qe7 Ra6 Qa8 Rh7 b8Q Rh6 Qab7 Rh7 Ne2 g1Q Ra1 Rh6 Ra5 Qf1 Ng1 Bg2 Rc5 Rh7 Bb6 Rh6 Nc4 Rh7 Bb2 c1R Ba1 Ne8 Bf6 Nd6 Qc2 Nf5 Nb2 Ng3 Bh4 Bd4 Bf6 Rh4 h6 Rg7 Rb5 Rgg4 Rc5 Rd6 Re5 Rd5 Rg5 Q3d1+
k2nRqB1/1qbB4/2bR1N1N/3Rn2q/b4rN1/1q3rN1/2rQ1PQ1/1NK5 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Qd6 Ba3 Bg7 axb5 Bf8 b6 Qd7 b5 Qd8 Bb4 axb4 g4 Kd7 d4 e5 Kd2 h5 f6 c5 f7 c4 g5 b3 d6 c3+ Kc1 e4 b7 b2+ Kc2 h3 g6 h4 b6 Kc6 d7 h2 g7 h3 Bc4 e3 Ne2 Ne7 g8B Rh4 Re1 h1Q Ng3 e2 Qd2 h2 Ra5 Rf4 Be6 Ng6 Rd5 Bd6 f8N Ne5 Ng6 Qf8 d8R Bd7 Rd1 e1R Re8 Bc7 Bf5 Re3 Bfe6 Na6 b8Q Nc5 b7 Ra2 Qa8 Ref3 b8N+ Kb6 Qc6+ Ka7 Rd6 Qg2 d5 h1B Bg4 Nb7 B4e6 Nc4 Ne5 Nd8 Ng4 Ne5 Bf5 Qh3 Bfe6 Qh5 Bf5 Be6 Nd7 Bg2 Ndf6 Bd7 Qb5 Bc6 Qf1 Ka8 Qh1 Bf1 Bd7 Bfb5 Qg2 Raa4 Rde6 Rac4 d6 Rc5 Bc8 Rcc4 d7 Rc5 Rd6 Rcc4 Kb3 c2+ Ka2 c1Q Rd5 Ndf7 d8N Ba4 Bd7 Qc3 Rd6 Qb4 Rd5 Rc2 Rd6 Nh8 Nf7+ Qb8 Nfh6 Nhf7 Qe3 Nd8 R1d5 Qb7 Qd2 Rc1 Nc3 b1Q+ Ka3 Q1b5 Ka2 Qd3 Nb1 Bcb5 Kb2 Rcc4 Qc2 Bc6+ Kc1 Qdb3 Qc3 Rce4 Qe1 Re2 Qd1 Ra2 Qd2 Rc2+
B4b2/kqR2r1r/1n2RPrQ/5N2/b4R2/3b1q1n/1n1KQ2N/RNrR1B2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 h4 Kd7 d4 e5 g7 c5 b6 a5 b4 e4 h5 a4 d6 Kc6 d5+ Kb7 b5 c4 f6 c3 d7 c2 d6 c1R h6 a3 h7 a2 Bg2 f3 Rh4 e3 Nd2 e2 Nb1 g4 Bf1 g3 Kd2 e1N Qe2 f2 Nf3 g2 Rf4 g1R Nh2 Qc7 d8R Ne7 g8B Bd7 Rc8 Ng6 Bd5+ Bc6 d7 Nd3 d8R Nb2 Re8 Nd7 Re6 Ra7 Bh1 Qb8 Rc7+ Ka8 Be4 Qc8 b7+ Kb8 Bh1 Nb6 Rd6 Qh3 Re6 Qf3 Bhg2 Ne7 Bh1 Rg6 Bhg2 Ned5 Bh1 Rhg8 h8Q R8g7 Qh6 Rh7 Bhg2 Ra8 Bh1 Ka7 Bhg2 Re8 Bh1 Ree7 b8N+ Ka8 Bhg2 Ref7 Bh1 Bd7 Nc6 Be8 Nd4 Bc6 Rh4 Nf4 Nf5 Nh3 Rf4 Bd7 Rcc4 Ka7 Rc8 Qb3 Ba8 Qf3 Rc7+ Qb7 Nc3 Re1 Rd1 a1Q Nb1 Qa3 Nc3 Nd5 Nb1 Qf3 b6+ Kb8 Nc3 Ba4 Ra1 Rc1 Nb1 Qc6 b7 Ka7 b8R+ Qb7 Rd8 Nb6 Rd3 Qh5 Rg3 Qf3 Rg1 Re7 Bg2 Ref7 Rd1 f1B Qe5 Be2 Bf1 Ba6 Qe2 Bd3
3nNb2/P3Qn2/1kb5/1bN1Q1R1/b2BR1KN/1Nb5/3rq2R/1Bbr1N1r w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 Ke2 Kd7 Kf3 Kc7 h4 g5 a4 e5 f6 b5 h6 b3 d6+ Kb6 d7 e4+ Kg4 d3 f4 b2 a5+ Kb7 h7 e3 f5 d2 h5 b4 a6+ Kc6 h6 e2 a7 e1B f7 b3 f6 Qe7 Rh5 Bg3 Ra4 Kc5 Bd3 Bh4 Qe1 d1B+ Ne2 Bf2 Re4 Ba6 d8N Kb6 Nd2 b1B Nf1 b2 Nb7 Bd4 Be3 Nc6 Nd6 Nd8 Ne8 Ba4 Nc1 B6b5 Nb3 Rc8 Qg3 Rc2 Qe5 Rd2 Bf2 Ba2 Bg1 b1R Rh2 Rbd1 Bb1 Bg7 f8N Be3 Ne6 Bf8 f7 Bc6 Na1 Bc4 Nb3 Bc4b5 Nec5 Bd4 Rh5 Bc3 Bd4 Qe6+ Kg3 g4 Rg5 Qc4 Kh4 g3 Kg4 g2 Qe7 Bg7 f8N g1B Ng6 Be3 Nh4 Bf8 Kh3 Nf6 Kg3 Nd7 Kg4 Rg8 h8R Ne5+ Kg3 Nef7 h7 Rg7 Kg4 Rg6 Rg8 Rh6 h8Q Rh5 Qhe5 Rh7 Rh8 Qe2+ Nf3 Rh1 Rh2 Qc4 Nh4 Qe2+ Kh3 Rc2 Kg3 Bc1 Kh3 Rcd2 Kg3 Qc4 Kg4 Qe2+
4RQn1/2qbRQn1/1nBn2r1/kP1r3n/1nB5/NB2b1B1/1Rq4N/5K1B w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 g4 Kd7 e4 f5 d4 h5 e5 c5 e6+ Kc7 e7 Kb6 e8B f3 d6 b3 d5 h4 g6 f4 g7 f2+ Ke2 c4 d7 b2 d6 h3 g5 f3+ Ke3 c3 g6 h2 Bd2 c2 Qe2 c1N Bc3 Rh5 Bg2 f1N+ Kf2 Ra6 Na3 b1Q Qc4 Rd5 Be5 Ne3 Ra2 Ka5 Rb2 Na2 Bg3 Qc7 d8R Nf5 d7 Qc2+ Kf1 f2 Nf3 Nd6 Qf4 Nb4 Qf7 Rb6 Rg1 h1N Nh2 Be7 Bf3 Bg5 Rg2 Nh6 g8B Be3 g7 Ra6 Bh7 Ng8 Bd3 Rc6 Bc4 Ra6 Be5 Rb6 Rg6 Ra6 Re6 Rb6 Re7 Ng3+ Kg2 Ngf5 Bg3 Bb7 Rc8 Bc6 d8Q Nd7 Kf1 Ra6 Rb8 Nb6 Bh1 Bd7 Bb3 Nf6 g8B Ng7 Bh7 Ng8 Bd3 Bf5 Bc6 Bd7 Kg2 f1N+ Be2 Nd2 Qdf8 N2e4 Rbe8 Nef6 Kf1 Nfh5 Bec4 Na4 Ba8 Rc6 Bb7 Nb6 Ba8 Ne4 Bb7 Rg6 Bc6 Nd6
1Nn3b1/n4r2/P6R/2Br1N1n/Qr2R2B/5qbB/1BQrN2k/n1B1K2r w - - 0 1 illegal: No possible last move
7k/QNBP4/Bq6/Q1q1rK2/4RBnb/r2r3B/R1r2n1B/Q2Nq1qb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Ke4 h5 g4 e5 f4 a5 d4 c5 b4 a4 f6+ Kh7 b6 c4 g5 a3 b5 h3 f5 h2 f7 h4 b7 c3 b6 h3 g6+ Kg7 d6 c2 d7 a2 d5 Bb4 f8R Bc5 d6 Ba3 Ba6 Rh4+ Bf4 c1R f6+ Kh8 f7 Rh6 Kf5 e4 Nf3 e3 Nh4 e2 Re1 h1Q Nc3 h2 Re8 Nc6 b8Q Qg1 f8Q h1R b7 Nb4 Re4 Rh3 Qa7 Nd3 b8B Qdb6 Qd8 Bb7 Bh2 Rc2 g7+ Kh7 Qc7 Nf6 d8B Nf2 g8B+ Kh8 d7 Rd3 Be6 N6g4 Qb1 Bd5 Nd1 Be7 Bf4 Qc5 Qa5 Bc6+ Re5 Bh1 Bdc7 Qb6 Re4 Bg5 Bh2 Rh7 Bcf4 Rh5 Bbc7 Qc5+ Kg6 Qb6 Nf5 Bh4 Nd6 Rhd5 Nb7 Qc5 Re5 Qb6 Kf5 Qc5 Rf1 e1Q Qc1 Qeb4 Re1 Qbb6 Re4 Qe1 Rb1 a1Q Rb2 Qg1 Ra2 Qac3 Qb1 Qce1 Qa1 Rc8 Bb8 Rc6 Bc7 Rcd6 Bb5 Ra3 Bf1 Rdd3 Bc4 R6d4 Bh3 Rd5 Ba6 Rxe5+
1q4k1/1brqB3/Qq3R1b/1nNN4/5q1b/2n2BPQ/R2QqQn1/3RQ1K1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 g3 fxg3 axb5 g2 Nc3 g5 Na4 a5 Ra3 g4 Nf3 g1B Ra1 g3 Nc3 g2 Nb1 Ra6 Qa4 Rg6 Qd1 Rg3 hxg3 Ba6 Rh2 Bb7 Rh1 Bc8 b4 h5 d4 f5 e4 Kf7 d6 c5 d5 a4 d7 h4 e5 a3 d6 h3 b6 h2 b7 a2 b5 f4 b6 c4 Qe2 c3 Ba3 c2 Qa6 Ne7 e6+ Kg8 Be2 Bc5 Nd4 c1Q+ Kf2 f3 Rf1 h1Q Nc3 Qh2 Nd5 Nbc6 b8Q Na7 b7 Nb5 Qba7 Rh7 b8Q Bb7 Qc8 Bh6 Rd1 Qh5 Kg1 Qf4 Bb4 Qde8 d8R Qhf5 d7 f2+ Kh2 f1Q Bf3 g1N Nb3 Ng6 e7 Nh4 Ba3 Be3 Nc5 Ne2 Bb4 Qef8 e8Q Nec3 Ba3 Bd2 Qe1 Qe2+ Kg1 Ng2 Re8 Rg7 d8Q Rc7 Re6 Q5g4 Rf6 Qd7 Q7b6 Bg5 Qba7 Bh4 Bb4 Qfg4 Ba3 Bh6 Bb4 Qf4 Ba3 Qc6 Qh3 Qd7 Q7b6 Na7 Qb2 Nab5 Qbd2 Qfe8 Qe7 Qb8 Qee3 Nd6 Q3f2 Ndb5 Rab1 a1Q Rb2 Qb1 Ra2 Qdf5 Na4 Qfe6 Be7 Qd7 Nc5 Qb3 Nb4 Qbe6 Nd5 Qb6
6bR/2NR2Q1/1N3bRQ/8/1Rrqb1Pn/R3qB1Q/2kbB2b/K4rrb w - - 0 1 illegal: No possible last move
1N1bqbqK/2Q5/2R3B1/1B4P1/qk2B1b1/2n1B2b/nrn2QNR/2n1N2B w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 axb5 exf4 Kf2 a4 Ke1 Ra5 bxa5 Qe7 Nh3 Qf6 Ng1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 d5 c4 f5 g4 h5 e4 f3 g6 f2 g5 f4 a6 f3 b6 a3 a7 h4 a8B d3 b7 d2 g7 a2 Qc2 d1N Be3+ d4 Nc3 h3 Qd2 h2 Nd5 Nd7+ Ke6 Ngf6 Kf7 Nc3 e5 Nfe4 Be2 f1B g8B f2 b8N Bh3 e6 f1N Nf4 Kb4 c5 d3 c6 Ndc5 c7 Nb3 e7 Nc1 e8B Bcg4 c8Q Rh7+ Kg6 Rb7 Bh7 Qd7 Qc2 d2 Bb5 d1Q Qf2 Qa4 Qc7 Qd5 Nf3 Qg8+ Qg7 Rb6+ Bec6 Rb7 Ne1 Rb6 Nfg2 Rb7 Rg1 h1Q Bd5 Qh2 Rh1 Qe5 Rh2 Qe7 Kh6 Qe8 Bg6 Rb6 Bd4 Ne3 Bdb7 Qgb3 Kh7 Nc2 Be3 Qbe6 B7c6 Qeb3 Rb1 a1B Qc7 N3a2 Bab7 Nec3 Bce4 Nd1 Bbd5 Bf6 Ra1 Bd8 Kh8 Ndc3 Ba8 Nd3 Rd1 Ndc1 Rd6 Qd5 Rc6 Ka3 Bbd3 Rb2 Bb5 Kb4 Rc4+ Kb3 Nf4 Qa7 Bh1 Qa5 Nfg2 Qa4 Bb7 Qdf7 Bbe4 Qd5 Rc5 Kb4 Rc6 Qg8+
1B1r1b2/3rRP2/1r6/qqBqNB2/kn4QB/rqR4Q/2qNK3/3BRr2 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Ng8 f6 Ba6 Ra4 Bb7 Ra1 Bc8 h3 g5 Qd2 Bb7 Qd1 Bd5 Be2 Be6 Bf1 Bf5 gxf5 Nc6 h4 g4 Ra6 Ne5 Ra3 Nf7 Ra1 Ng5 hxg5 Qc8 Qd2 Qb8 Qd1 Qd8 c4 e5 b4 d5 f7+ Kd7 g6 h5 g7 a5 f6 g3 b6 Kc6 b7 g2 b8Q a4 c5 h4 Na3 d3 Qc2 d2+ Kf2 d1R Ke3 d4+ Ke2 d3+ Ke3 h3 Qe2 h2 Qd2 Qe8 Nf3 g1Q+ Qf2 d2 Bd3 Qg3 Qg2 Ne7 g8B Nd5+ Ke2 e3 Bf5 e4 Nc4 a3 Qc8+ Kb5 c6 a2 c7 Ka4 b5 Rb8 b6 Qb5 b7 Nb4 Re1 h1Q Ne5 Rh6 Rb1 a1R Qh3 Ra3 Qg4 Ra8 b8B Ra7 Qe6 Qh5 c8R Rd7 Rb3 Qg5 Rc3 Qg6 Nc6 Qd6 Rd8 Qdd5 Re8 Rd8 Ne5 Qh7 Kf1 e2+ Kf2 Rg6 Re7 Qh3 Bh7 Qhd3 Qh3 Qc2 Bg4 Rh6 Bh5 Qb3 Qeg4 Qc2 Bf5 Rd7 Rf1 e1R Rg1 Rf1+ Ke2 e3 Bb2 Bg7 f8B Qb3 f7 Rb6 Re6 Qc2 Bc5 Bf8 Re7 Qb1 Rd3 Qe6 Qgg3 Na6 Nf3 Rd5 Bf6 Q1b3 Nfe5 Rd8 Bh4 Rfe1+ Kf3 e2 Rf1 Qd6 Rf2 Rf1 Ke3 e1Q+ Re2 Qdd7 Bf3 Qdc6 Qgg4 Qa8 Rc3 Qf2+ Kf4 Nb4 Re1 Qg2 Ke3 Qaa5 Be2 Qgc6 Bd7 Qg6 Bc8 Qgc2 Bf5 Rc1 Bf3 d1Q Be2 Qdd7 Bf3 Rd1 Be2 Rdd6 Bd1 Qe6 Nd2 Rd3+ Ke2 R3d7+ Ke3 Rg1 Kf3 Qed5+ Kf2 Rf1+ Ke3 Qbc6 Ke2 Qcb5+
7b/2R1b1PB/1p1QQnB1/1Q2Q1R1/1r2nnr1/Q1qrqk1B/1qN2N2/K7 w - - 0 1 illegal: No possible last move, all moves rejected
2N1Q3/1bPn2NR/1qB3qr/r1N5/3B4/kqBBb1p1/1Rb5/rn1Q1K1B w - - 0 1 legal: proof: d4 a5 e4 h5 d5 Ra6 e5 Re6 dxe6 b5 g4 hxg4 Bc4 c6 Bd5 cxd5 b4 Bb7 bxa5 Bc8 f4 Qc7 f5 Kd8 f6 Qb6 fxe7+ Kc7 Ke2 Kc6 Ke1 Qd8 e8B Kc5 c4 Kb4 h4 g5 a4 f5 a6 g3 h5 f4 a5 d4 a7 d5 a8N d3 e7 g2 a6 g4 h6 f3 h7 g3 e6 d4 a7 Nd7 c5 Bh6 c6 Bb7 Nb6 Be3 a8B Ngf6 Nd2 Nd5 Nc8 Nc3 Ne4 Qb6 Ra2 Nb1 Rb2+ Ka3 c7 b4 Bg6 b3 e8B Rf8 h8B Rf6 Rf2+ b2 e7 Qb3 Bf5 Rh6 Nh3 Qb6 Bd2 g1R+ Rf1 Rg2 Bc3 Qg6 Rf2 d2+ Kf1 d3 Re2 f2 Bhd4 Rh2 Nhg5 R2h5 Nc5 Qb6 Qc2 d1B Nge6 d2 Bd3 Rd5 Qc1 Bc2 Ng7 Rf5 Qe1 d1Q Rd2 Qg4 Qd1 Qgg6 Re2 Nf6 Bc6 Nd7 e8Q Rd5 Kg2 f1R Rf2 Nd2 Rh2 b1Q Rh5 Q1b3 Rh1 Rh8 Rh7 Nb1 Rd2 Rh1 Rf2 Rh6 Kf1 Rf5 Na4 Ra5 Nc5 Rf8 Bh1 Ba6 Bac6 Bb7 Qd2 Rf4 Qd1 Rfh4 Re2 Rh2 Rf2 Rg2 Rd2 Rg1+ Ke2 Rf1 Qe1 Rg1 Bf5 Be4 Rb2 Bc2 Bd3 Nd2 Qb1 Qd5 Qf1 Qdb3 Qf3 Rd1 Qf1 Rb1 Qd1 Ra1 Ke1 Nb1 Ke2 Q6b4 Kf1 Qb6
8/R3n1RR/2N1q1nr/2r1B2k/1bb2Q2/p2bN1n1/1NPQ2R1/b1bK1R1B w - - 0 1 legal: proof: d4 b5 g4 e5 f4 exd4 a4 f5 axb5 fxg4 e4 c5 f5 h6 Bxh6 c4 e5 c3 Bc1 Rh5 Nxc3 Rh4 Nb1 Rh8 h4 Kf7 b4 d5 h5 g5 b6 a5 b5 d3 f6 g3 b7 a4 h6 Kg6 e6 g2 h7 d2+ Ke2 g4 f7 d4 b6 a3 e7 g3 e8R Bb4 f8Q Nd7 b8N Ne7 b7 Ne5 Bb2 Ra5 Qf4 Rc5 Rh2 Bf5 Nc3 Qd5 Nf3 g1B Ne1 g2 Na4 Be3 Nc6 g1B b8R Qe6 Rg2+ Kh5 Rb7 N5g6 Rg8 Be4 Qc1 d1N Rg7 Nf2 Ra7 Nh1 Qd2 d3+ Kd1 Ng3 Be5 Bd4 Rc1 Ba1 Nb2 Be3 Rb1 Bd5 Rc1 Bc4 Rb1 Rf8 Rc1 Rf6 Rb1 Nf8 h8R+ Rh6 Rhh7 Nfg6 Re2 Ba2 Bg2 Bb3 Bh1 Bc4 Qc3 Bc1 Ng2 d2 Ne3 Bd3 Rg2 Bc4 Nd3 Bcb2 Rc1 Ngf5 Ke2 d1B+ Ke1 Bf3 Qd2 Be4 Rd1 Bc1 Nb2 Bcd5 Ke2 Bb3 Re1 Ng3+ Kd1 Bd3 Rf1 Bbc4
1R3Rb1/1QbNqn1R/r1b3r1/P4N1R/NQ1R3r/b4p2/4k2K/n1B1B2n w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 fxe5 Bc5 Nc3 Be7 Nb1 Bf8 g4 h5 gxh5 Qf6 e3 Qd8 a3 Be7 Bc4 Bf8 Ba2 b3 Kf2 bxa2 Ke2 Nc6 Ke1 Nb8 Kf1 Ke7 Kg2 g5 h4 b5 d4 c5 e4 f5 a4 g4 d6+ Ke6 d5+ Kd7 h6 b4 a5 g3 h5 b3 h7 b2 h6 f4 Qb3 c4 Ne2 c3 Nd4 c2 Qb4 Be7 Rh5 Ra6 Nc3 b1B Nf5 Nc6 Na4 f3+ Kh3 g2 Kh2 g1R e6+ Ke8 e5 Bd7 Qb7 Rg6 Qb4 Bh4 e7 Kf7 e8R Qe7 e6+ Kf6 Rf8+ Ke5 Rb8 Be8 d7 Nd4 d8B Ke4 d6 Kd3 d7 Ke2 Bb6 Bf6 d8R Bc6 Rf8 Bh4 Bc7 Bg5 Bg3 Bf4 Qb7 Bc7 Qb4 Bd8 Be1 Bc7+ Bf4 c1B Qb7 Qb4 e7 Ba3 e8N Qe7 Nf6 Bc2 Rc1 a1N Nd7 Bb3 Rc5 Bf7 Rd5 Be6 Rd6 Bed5 Bc1 Be6 Ng7 Nf5 Qb4 Ng3 Nf5 Nh1 Qb7 Rg4 Qb4 Rf4 Rd4 Nf6 Qb7 Rg8 h8Q Ne4 h7 Rg6 Qe5 Bb3 h8R Bg8 Qc5 Nd6 Qcb4 Nf7 R8h7 Rh4#
3k3q/1Bb2qRq/1Pn5/4NQ1N/1Rn1Q1p1/q4QB1/1bB1r1qQ/3K1rQ1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 Bf5 axb5 Bc2 f4 Bg6 h4 e6 f5 exf5 h5 fxg4 hxg6 g3 b4 a5 e4 f5 d4 h5 g7 c5 b6 g2 b5 g4 e5 f4 d6 a4 b7 h4 d7+ Ke7 d5 f3 e6 h3 b6 c4 d6+ Kf6 e7 c3 e8Q h2 Nd2 c2 Qe4 a3 Ne2 g1Q Rb1 a2 Rb4 a1B Nc4 Nc6 b8Q Bb2 Nf4 Na5 Ne5 Ne7 g8B Nc4 Bh7 Qg2 Nh5+ Ke6 Qde2 Nc6 Bf4 Ra2 Bg3 c1Q+ Qd1 Qh4 d8Q f2+ Ke2 Qa1 d7 Bd6 Qg5 Rf8 d8Q Bc7 Q8d3 Qc1 Qgf5+ Ke7 Qe1 Qc3 Qdd5 Qa3 Kd1 Rf7 Bd3 f1Q Bc2 Qf6 Qdd3 Qh8 Qdf3 Qff2 Rf1 h1Q Bg8 Rf6 Bd5 Qh7 Qh8 Rf8 Q1e3 Kd8 Re1 Qff1 Qg1 Qh4 Be6 Qf6 Bc8 Qff7 Bb7 Qh1 Qg7 Qfg2 Qh6 Qh4 Nf4 Qhf6 Qhh2 Qfh8 Nh5 Bc3 Bd3 Re2 Bb1 Bb2 Bc2 Rf2 Re3 Re8 Rc3 Nd6 Rc5 Nc4 Ra5 Re6 Ra7 Qa5 Qee1 Bd6 Ba6 Qfg6 Nd3 Qa3 Rg7 Qf7 Bb7 Bc7 Qee5 Re7 Qef4 Re3 Q4e4 Ree2 Ne5 Rf1+
b2BQR1r/b2q1N1B/2n2BrR/7b/5R1P/1b3npk/1qQNK3/B2Bq3 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 d4 Kd7 e4 f5 h4 g5 e5 c5 h6 b3 h7 f3 d6 Ke6 b6 g4 d7 f2+ Ke2 c4 b7 g3 Ra7 b2 Ra6+ Nc6 b8B f4 d5+ Kf5 e6 Kg4 e7 c3 e8B c2 d6 Nf6 Bc7 Bb7 Nf3 Ne4 Ng5 Nd2 Bg6 Nf3 Nd2 b1Q Bb2 c1Q Ba1 Qbb2 Qc2 Rg8 Be4 Rg6 h8R Qe7 d8Q Qd7 Nf7 Qe1+ Kd3 Bh6 Be2 f1B Qe8 Bg2 Rg1 Kh3 Bd1 Rd8 Rf8 Ba8 Rf1 Bg7 Be2 Bd4 Bd1 Ba7 Rf2 Rb8 Bd8 Bh1 Bf6 Bg2 Kc4 Bf1+ Bd3 Be2 Rb6 Ng1 Ra6 Bh5 Be4 f3 Kd3 Rc8 Rf1 f2 Rb6 Rg5 Bh7 Nf3 Ra6 Rg6 Rb6 Qde7 d7 Rb8 d8B Q7e6 Rg1 Qe7 Rg2 f1B+ Re2 Bg2 Re4 Qd7+ Rd4 Ng1 Ra6 Bd5 Rf4 Nf3 Rb6 Ncd4 Rd6 Nc6 Re6 Bb3+ Rd6 Qh1 Ke2 Rc8 Re6 Qg1 Rd6 Qe1+ Kd3 Qee7 Bg7 Be6 Rg8 Beg4 Ba5 Bd4 Qf8 Rg5 Rh6 Rg6 Bf6 Be6 Bb6 Re8 Bd8 Bb3 Rh8 Qee6 Qe7 Rf8 Qe8 Qe1 Rg8 Qh1 Ke2 Ba7 Rg7 Rh8 Rg8 Qg1 Rf8 Qe1#
n6R/r3r2B/r1QQ1n1b/k2b4/Nqb1p2Q/QB1rN2q/P1Q1KR2/5B2 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h6 g4 Nd7 g6 Nb8 g7 Ra5 Na3 Ra7 Nb1 Ra8 g5 Bd7 g6 Qc8 Bb2 Qd8 Bf6 Bc8 Bg5 hxg5 h4 Kd7 d4 b5 h5 c5 d6 Kc6 f6 Kb6 h6 e5 d5 c4 h7 c3 f7 b3 d7 g4 d6 c2 Ne2 c1R Nd2 b2 Rh2 b1B Rf2 g3 Rf5 e4 Nf4 g2 Ke2 g1R Nd5+ Ka5 Rf2 b4 Nb6 b3 Na4 b2 Qc2 Nf6 g8B Ra6 g7 Bb7 Qc6 Qb6 d8Q Rc3 d7 Rd3 Qdc8 Qb3 Qc2 Ra7 Q8c6 Na6 d8Q+ Nc7 Qdd6 Rg6 Qa3 Na8 Qad6 Be7 f8Q Qe6 Bf7 Qh3 Bb3 Bd8 Qfe7 Re8 g8B Rh6 Qf8 Re7 h8Q Bb6 Qa3 Be3 Bh7 Rg6 Qh6 Bf4 Qcd6 Bd5 Qe8 Be3 Qh4 Bh6 Qec6 Ra6 Bg2 Rgg7 Nf1 Rea7 Ne3 Rge7 Q2c4 Bc2 Rh1 b1Q Bf1 Qb2 Ke1 Bd1 Qc2 Bh5 Rhh2 Bhf7 Ke2 Qd4 Rhg2 Qc4 Rg8 Qb4 Rb8 Bc4 Rh8 Bfd5
1rb3n1/1Q1nN1k1/4Q3/BQ1B2KQ/1prn4/P3B1Q1/R5nq/bq2RqN1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 Ke2 Kf7 Kf3 g5 Kg4 e5 f4 b5 h4 b3 h6 b2 a3 b4 d6 e4 h5 d3 h7 e3 h6 d2 d7 e2 f6 e1Q f5 Ba6 Bg2 Qf2 Ra2 Qfb6 Qa4 d1N Qb5 Ra7 Nc3 b1Q Be3 Qbc7 Nd5 Qe7 d8B Qee5 Ne7 Qd7 Ba5 Bc8 Bd5+ Qde6 Kh5 g4 Kg5 Bg7 Qb7 Kf8 f7 g3 Qb5 g2 Qb7 Nf6 Qb5 Rg8 h8Q Rc7 Qh7 Qa6 Qg6 Qed6 h7 Qh2 h8Q Rc4 Qhh5 Nbd7 Qb7 Rh8 Qgh6 Ng8 Qe6 Ba1 Qb5 Rh7 Qb7 Kg7 f8Q+ Kh8 Qd8 Kg7 Qdc7 Rh8 Qg3 Qb5 Beb6 Ne3 f6+ Kf8 f7 Kg7 Nh3 Qa6 Re1 g1N Ba7 Ng2 Be3 Ne2 Ng1 Nd4 Qb5 Rc2 Qb7 Qf1 Qb5 Rh6 Qb7 Rc4 f8Q+ Kh7 Qd8 Kg7 Qdb6 Rh8 Qb5 Rh6 Qe4 Ra6 Qeg4 Ra8 Qe6 Rb8
Q2Q2bn/1b1r3Q/N1K3R1/2N1qQpn/P3Q2q/k2r4/nRR4B/1Bq4n w - - 0 1 legal: proof: c4 c5 e4 d5 d4 h5 b4 f5 exf5 e6 g3 a5 g4 axb4 cxd5 hxg4 Ke2 c4 Ke1 Bc5 dxc5 Kf7 Qd3 Ke7 Qd1 Ke8 Kd2 Ke7 Ke3 b5 Kd4 g5 h4 g3 f4 g2 a4 b3 f6+ Kd7 d6 Kc6 d7 b4 f7 c3 f8Q c2 f5 b2 f6 b3 h5 Rh7 h6 Ne7 f7 Qe8 d8Q Ng6 Qd3 Nh8 Ra2 Nd7 Nh3 g1N Nd2 b1Q Ne4 b2 Nhf2 Nh3 Bf4 c1N Bh2 e5+ Kc4 Rg7 h7 Nf6 Qg8 Ra6 f8Q Nh5 Qf5 Rd7 Qd4 Qa1 Bd3 b1B Rb2 Ba2+ Kb4 Qe6 Bb1 Qh6 Qge8 Bg8 Nd3 Nf2 Qe3 Kd5 Kb5 Rad6 c6 Na2 c7 Qg7 Rd1 Nh1 Nec5 Qf6 Qef3+ Kd4 Qa8 Kc3 Rdd2 e4 Nb4 e3 Qee4 e2 Nba6 Qe5 Rd4 Rd5 Kc6 e1Q Rdb4 Rd3 Rb6 Nf7 h8Q Qh4 Qhh7 Nh8 Bc2 Qc1 Bb1 Ng7 Kb5 Nh5 Rg6 Rd1 Kc6 R7d3 Rg2 R1d2 Re2 Kb2 Rf2 Ka3 Re2 Bce6 c8R Rd1 Rb8 Bc8 Rc2 Rd7 Rb5 R1d3 Rbb2 Bb7+
1NqRn1Qq/1b3PQ1/5Q2/R2B4/3b2rB/n2rB1nk/QKNq2np/Q7 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 Kd2 c5 Kc2 e5 f4 h5 g4 h3 d6 c4 g5 h2 f6 Ke6 b6 Kf5 g6 e4 f7 c3 d5 h4 b7 e3 g7 h3 d7 e2 d6 Kg4 f5 Qc7 d8B Na6 b8Q Bb7 d7 Rh4 f6 Qc8 Bg2 Nh6 g8Q+ Bg7 f8Q Nf5 f7 Ng3 Qa7 Nc7 Ra5 Ne8 Nf3 e1N+ Kb3 c2 Na3 Rb8 Be3 c1Q Nc2 Qd2 Qa1 Ra8 Rf1 h1Q Nfd4 h2 Be4 Kh3 Bd5 Ng2 Rd1 Rg4 Kb2 b3 Bh4 Qf1 d8Q Qf6 Qdd6 Qh6 Qd8 Qh8 Qf6 Rb8 Nc6 Ra8 Ka3 b2 Nb8 b1N+ Kb2 Na3 Qa6 Ra7 Qe2 Ra6 Qc4 Rd6 Qca2 Bh6 Qf8g7 Rd8 Bg1 Be3 Bf2 Ba7 Be3 Bd4+ Kb3 Qc1 Bc6 Bc5 Rd5 Qd2 Kb2 Rd7 Rd4 Rc7 Rd8 Rd7 Bf3 Rd3 Bd5 Bd4+
1N2Bb1b/P7/5Q2/R1Bk1qN1/2R2Br1/1qp1nb1r/NQ2N2b/1KN1n2r w - - 0 1 legal: proof: c4 a5 e4 h5 g4 hxg4 b4 axb4 d4 f5 exf5 e5 dxe5 d5 cxd5 Ra7 Bg2 Ra6 Bf1 Ra8 Kd2 Kd7 Kc2 c5 a4 b5 f4 g5 h4 g3 f6 c4 f7 g4 f5 g2 e6+ Kd6 h5 g3 a5 c3 e7 Ra7 e8N+ Kc5 h6 Ba6 f6 Re7 d6 Re6 d7 Ne7 h7 Nd5 Ng7 Nc6 Qd2 Ne5 Rh4 Nd3 Rc4+ Kd6 Ne2 Re4 Ne6 g1B Ng5 Qe7 d8N g2 Nc6 Bb7 a6 Rg4 a7 Bh2 Ra5 g1B Bg2 Qd7 Bf1 Bh6 f8N Qf5 f7 Bd4 Nd7 Bf8 Ndb8 Ba8 Qe3 Bde5 Nd2 b3+ Kb1 b4 Qf2 b2 Nb3 Ne3 Bd2 Bd4 Nbc1 Bf6 Bg2 Ne1+ Be4 Qc8 Bg6 Qf5+ Ka2 b1R Bh5 B8e7 f8B Bd4 Be8 b3+ Ka3 b2 Ka2 Bde5 Nb4 Bf3 Qg2 Nf1 Bf4 Ne3 Ka3 Ra1+ Nba2 b1Q Qf2 Rg8 h8Q Qbc2 Qg7 Rh8 Qg2 Rh3 Qf7 Qb1 Qg7 Qb5 Qf6+ Kd5+ Rb4 Bd8 Bc5 Be7 Rc4 Qb7 Ng3 Bf8 Qb2 Rb1 Nge2 Bd4 Qg6 Bh8 Qf6 Nd3 Nb3 Rh1 Nbc1 Qf7 Kb3 Nf1 Kc2 Ne3+ Kb1 Qb7 Qg6 Qb3 Qf6 Ne1+
Q4Br1/p2R2Qr/q3r1R1/Bb1QR1n1/1QKQ1r2/4b3/n2q1P2/n1kNN3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 g4 Ke5 b4 h5 b6 c5 f6 h3 d6 h2 b7 h4 g5 c4+ Kc3 Ke4 d4 e5 d5 h3 g6 Rh4 g7 Bd7 f7 Rf4 b5 Nf6 g8R Na6 b8Q Bh6 f8B Nc5 b6 Ba4 d7 Nb3 d6 Nh7 b7 Ng5 Nf3 Qf6 Ra3 Na1 d8Q Qe6 d7 Qa6 Rg1 h1Q Qf6 h2 d8Q Qg2 Ne1 h1R Kb4 c3 Bb5 c2 Bd2 c1N Kc4 Na2 Ba5 Qg4 Qde7 Qd7 Rg6 Qd2 Rd3 Rh2 Qbd6 Rd8 b8Q Re8 Bg7 Rg8 Qb4 Nf3 Qdb3 Rfh4 Rd7 Bf4 Ng2 Ng5 Bf8 Rg4 Rc1 Rh7 Nc3+ Kf3 Rb1 e4 Qd4 e3 Re1 e2 Kd5 Rgh4 Qa8 Rg4 Rg1 e1R Qg7 Re6 Re1 Rgh4 Re4 Be3 Re5 Rf4 Q3c4 Qd3 Nd1 Ke2 Nc3+ Kd2 Ne1 Kc1 Nd1+ Qc3 Qcc6 Qc2 Qcb7 Qb2 Kc4 Qd2 Qd5 Bxb5+
B1R3Q1/3nKN1Q/r2rP1Q1/2R1Rb1n/3bQ3/q2rrr2/prQ5/k4N1B w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 cxd5 e5 h4 exf4 hxg5 Bf5 Ba3 Bd3 axb5 Bc4 b6 Ba6 b5 Bc8 Bb4 cxb4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kc5 g4 f5 d6 a5 d7 h5 Ke6 Kd4 g6 a4 g7 b3 e5 b2 g5 h4 g6 a3 b7 a2 b6 f3 Bg2 h3 Qc2 h2 Nh3 f2 Ng5 f1R Nf7 Nc6 b8Q f4 b7 f3 Qa7+ Bc5 b8Q f2 Qbb7 Rd1 Re1 f1R Bh1 Nh6 g8Q Rf4 g7 Ng4 d3 Rh7 Nd2 b1R Nf1 Rb2 Rc1 Qa5 Qaa6 Rh4 Qh7 Nb8 g8B Rh3 Qac6 Bb6 Ke7 Ra6 d8R+ Nd7 Qcg6 Nf6 Qbc6 Nh5 e6 Bb7 Re5 Re3 Rc8 Qa3+ Nd6 Rb3 Bf7 Ree4 Qd2 Ba8 Qf5 Ng3 Bg6 Nf8 Bg2 Nh5 Qe2 Rb4 Nf7 Rf2 Qeg4 Rfd2 Qf6 h1R Qe2 Rh2 Bh1 Rh3 Qb7 Rf4 Bge4 Rf5 R1c7 Rf2 Bc6 Kc3 d4 Kb2 d5 Ka1 Qed3 Ba7 Qc2 Rb2+ Qb4 Bb6 Bb7 Be3 Rc5 Rg3 Qbh4 Rd4 Qg4 R1d3 Qgg8 Re2 Qfg6 Rf3 Bc6 Bd2 Bb7 Ree3 Bc6 Bc3 Bb7 Rd2 d6 Rd5 d7 R2d3 d8Q Rd7+ Ke8 Bd4 Qh4 Rdd6 Ke7 Nd7 Bc6 Rh3 Bcg2 Be4 Bf3 Bf5 Ba8 Rhg3 Qe4 Rgf3
1k2n2n/4RQBB/1q1b1K1n/3r1Br1/7P/1pR3nN/3Q3r/RNqnB2B w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g3 c5 g4 hxg4 Nc3 d5 Nb1 Bd7 d3 Bb5 cxd5 c4 Qa4 c3 Qd1 Bc4 dxc4 Qd6 Qa4+ Qd7 Qd1 Qd8 Ke2 Kd7 Kd3 Kc7 Kd4 g5 Ke5 b5 a4 c2 f4 b3 a5 g3 c5 b4 h3 g4 c6 b2 a6 b3 f6 g2 f5 g3 f7 Nh6 a7 Na6 Bf4 c1Q f6 e6 Qd2 Bd6+ Ke4 e5 f8Q Kc8 f7 Nc7 Bd3 Rb8 a8B Rb5 Qg7 Kb8 f8B Rc5 Qf7 Ra5 Nc3 b1N Bg7 Qf6 Bg5 Qf2 Bh4 Qb6 Nge2 g1N Nf4 g2 Be1 Nf3 h4 g1N Bc2 Rg8 Nh3 Ne2 Rg1 Rb5 Rg6 Ra5 Re6 Rb5 Re7 Ng5+ Kd3 e4+ Kc4 e3 Bh7 Be5 d6 Ng3 d7 Bd6 Kd3 Rc5 Kd4 e2 Bb7 Na3 Ba8 Nc4 Nb1 Nb2 Bb7 Rc8 d8R Nd1 Rdd7 Rd8 Re3 Rg8 Rde7 Rd8 Rc3 Rd7 Bf2 e1R Ba8 Re2 Be1 Rh2 Bb7 Na6 c7+ Ka7 c8B Kb8 Qf3 Nc7 Qf7 Rd8 Bcf5 Rg8 Qf6 Ngf7 Bh1 Nh8 Qg6 Nf1 Ke4 Rd5 Qf7 Ng3+ Kf3 Ba3 Kf4 Bd6+ Kg5 Re5 Kf6 Rd5 Bf8 Rg5 Bg7 Ne8+
2R2q1n/4nkrQ/Q2B1p1q/QRrn4/n2qQ3/3N4/1n1bPQR1/K1N2B2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 d4 c5 Kd2 a5 Kc2 h5 b4 a4 Kb2 f6 g5 c4 g6 h4 g7 h3 b6 h2 b7 Bd6 b5 Be7 b6 Na6 b8R Bd6 b7 Bb4 d6 Kf7 d7 Ra7 d5 Nc7 d6 Qf8 d8Q Bd2 d7 Ne7 Nh3 g1Q Nf4 g2 Rc8 Rh5 b8Q Qd4+ Nc3 g1N Qa8 Nf3 Qe1 Ncd5 Rb1 a3+ Ka1 a2 Ba3 Ne5 Qb6 N5g6 d8Q Nh8 Rg1 h1Q Rg2 Re5 Qb4 Qh6 Qf2 Rg5 Qdd6 Ra5 Qbb6 Rc5 Nd3 Rg6 Rb5 Rg5 Kb2 a1N Qba5 Nb3 Qda6 Rg6 Kb1 Rg3 Na2 c3 Nac1 c2+ Ka2 Rc7 Nb4 Nc5 Nbd3 Na4 Bd6 Rc5 Q8b7 Ndb6 Qe4 Nbd5 Nb3 c1N+ Kb1 Nb2 Ka1 Na2 Nbc1 Rg4 Rc6 Nac3 g8Q+ Ke8 Rc7 Nca4 Qgh7 Rg7 Rc8+ Kf7
3b4/Q1PR1rQN/q2q4/3N2R1/r1rRq1K1/Np4bN/N3B2B/k2qqn2 w - - 0 1 legal: proof: d4 f5 b4 c5 e4 cxd4 exf5 a5 g4 axb4 f4 Kf7 f6 Ke6 f5+ Kd6 f7 Kc6 h4 b6 f6 Ba6 Ba3 Bd3 Bc1 Bf5 gxf5 Ra5 Bd2 Ra4 Bc1 Ra8 Bh6 g5 Ba6 g4 Bd3 Na6 Bf1 Nc5 Bf4 Ne4 Bc1 Ng5 hxg5 Rc8 Kf2 Rb8 Ke1 Ra8 Ke2 Kc5 a4 Kc4 a5 e5 a6 d5 g6 h5 g7 g3 Kf3+ d3 c3 e4+ Kf4 b3 a7 g2 Be3 b5 Qf3 d4 Rh4 b2 Ra5 Kb3 c4 b4 c5 d2 c6 d1Q c7 d3 Re5 Ka2 Qh3 b3 Nc3+ Ka1 Na2 b1Q Bb6 d2 Be2 Qc8 Qe3 Qa6 Nh3 Ne7 g8N g1R Rg4 Bg7 f8Q h4 f7 Bf6 Qg7 Rh7 f8N Qbc1 Qf2 e3 Bc5 Rg2 Bd6 Nd5+ Kf3 Qc5 Rd4 Bd8 f6 Qe1 f7 d1Q Rg5 Rg4 Bh2 Qcd6 Nf6 Re4 N8d7 Rg4 f8N Re4 Qg6 Rf7 Ne5 Rg4 Qg7 Re4 Ng1 h3 Nc4 Rh4 Na3 Rg4 Bg3 h2 Nh3 Re4 Be5 h1Q+ Kg3 Rh4 N8h7 Qe4 Bf4 Nc3 Nd5 Nb1 Be5 Nd2 Bf4 Rh5 Kg4 Nf1 Bf3 e2 Qe3 Rb8 a8R Rb4 Qg1 Rc4 Qf2 Be7 Rd8 Ra4 Rd7 Bd8 Qe3 Rh6 Rd2+ Rhf6 Qa7 Rc4 Rd4 Rf5 Nb6 Ra5 Nd5 Raa4 Rh5 Qea5 Rg5 e1B Be2 Bh4 Ne3 Qae1 Nd5 Qeb1 Bh2 Bg3 Qe5 Qbg6 Qg7 Qe4+
K2qN1QQ/R1prrnq1/q7/3knR1r/NBN1q3/4P1N1/1q6/R2bN1B1 w - - 0 1 illegal: No possible last move
4NN1R/2B5/q1Bn2r1/1rQbNnqK/NQ6/prBR4/4nP2/2rqN2k w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 b4 a5 h4 gxh4 Qb3 a4 Qc2 Bg7 Qd1 Bd4 Be2 Bb6 Bf1 Ba5 bxa5 Bg4 Nh3 Be6 Ng1 Bc8 Ke2 Kf7 d4 Kg6 g4 h5 a6 c5 b6 e5 d6 e3 Kf3 Kg5 a7 e4+ Kg2 Kf4 Kh3 a3 b7 c4 d5 c3 d7 c2 g5 Nc6 b8N Nd4 g6 Ne7 d6 Ndf5 g7 Rh6 g8N Bb7 Qe2 Bd5 Bg2 Rg6 Bd2 c1R Qd1 Nc8 Nc3 Qg5 Nc6 Rb8 d8N Rb3 d7 Ncd6 a8Q Rcb1 Be1 e2 Qd2+ e3 Na4 Rb5 Ne5 R1b3 Ngf3 Ke4 Kh2 h3 Rd1 h4 Qa7 Kf4 Qb2 Ke4 Bc3 e1R Qc7 e2 Rd3 Rc1 Ne6 e1Q d8B Qe2 Nf8 Qd1 Ne1+ Kf4 Kg1 h2+ Kf1 h3 Nf6 Qdh5 Ne8 Qhh6 Nf3 Ke4 Ke2 Kf4 Qc5 Kg4 Rg1 h1Q Bc7 h2 Ne5+ Kh4 Bf3 Kh3 Rf1 Qhg1 Qd2 Q1g4 Rh1 Q4h5 Qf4 Qhg4 Qfb4 Qd4 Rg1 h1N Rg3+ Kh2 Rh3+ Kg1 Be4 Nhg3+ Kf3 Ne2 Rh2 Qg7 Rh7 Q7h6 Rh8 Bg8 Bc6 Kh1 Re3 Qd1 Rd3 Qd8 Bb7 Qc8 Bd5 Qa6 Bc6 Rf6 Kg4+ Bd5 Nh7 Qhd2 Kh5 Rg6 Nf8 Qg5#
2nR3r/N2Q1K1b/1q5P/R3BQB1/1qN1Br2/r1qRrB2/1b3p2/1B3bk1 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 f4 exf4 a3 h5 a4 hxg4 axb5 a4 Nh3 Nc6 Ng1 Na5 bxa5 Ra7 Bb2 Ra6 Bc1 Ra8 Kf2 Ke7 e4 Kf6 d4 Kg5 h4+ Kh5 b6 f5 a6 c5 b7 g5 b8B c4 a7 f3 Kg3 c3 e5 f2 e6 c2 d6 a3 e7 a2 d7 Bb7 d5 Qa5 d8R Bg7 d6 Qb4 d7 Be4 Bg2 f1B Rh3 Bb2 Nf3 Bed3 Bcf4 c1Q Bbe5 Qcc3 Nd4 Rc8 a8B Rc4 Nc6 Re4 Rb8 Re3+ Bf3 Be4 Nd2 Bc2 Rb1 a1R d8Q Ra3 Na7 Bcd3 Qa5 Bc2 Bf6 Bcd3 B4e5 f4+ Kf2 Bg6 e8B Ne7 Rd8 Nc8 Bec6 Bf5 Ra1 Bh7 Bfe4 f3 Kg3 f2+ Bf3 Qb6 Nc4 Qbb4 Qd7 Qb6 Kh2 Qbb4 Bfe4 Qb6 Bb1 g3+ Kh1 g2+ Kh2 g1R Bce4 g4 Bg5 Qbb4 Rf3 Rh1+ Kg3 Rh2 Kf4 g3 Qab5 g2 Qf5 g1Q Qbd7 Qb6 Ra2 Rh3 Rg3 Ra4 Rf3 Rb4 Ra5 Re1 Bb8 Qc2 Bed5 Be2 Rfa3 Rc3 Ke5 Ra4 Ne3 Qg4 Rb3 Bf1 Bf3 Rcc4+ Kd5 Ra3 Rd3 Qc3 Be5 Rb4 Bc6 Rd4+ Ke6 Re2 Nc4 Re3 Nd2 Rc4 Kf7 Rb4 Bfd5 Qgc4 Ba8 Q4b3 Bc6 Rf4 Nc4 Qb3b4 Bg2 Q4c5 Bce4 Q5b4 Qf6 Rf5 Bh1 Kg4 h5 Kh3 h6 Rg8 Bd4 Kh2 Be5+ Rf4 Qff5 Rh8 Bhf3 Kg1
1NRN2b1/k1q2q2/3p4/3nQB1B/1B1n1Bb1/2r3B1/3P1QnR/K2nbq1R w - - 0 1 legal: proof: b4 a5 h4 b5 f4 c5 bxc5 e5 a4 exf4 axb5 g6 c4 Ra6 h5 Rb6 cxb6 gxh5 c5 h4 e4 h5 g4 f5 b7 f3 e5 h3 g5 h2 c6 f4 c7 a4 b6 a3 e6 a2 g6 h4 e7 h3 g7 Nc6 b8B Nd4 b7 Nf6 g8Q Nd5 Qe2 f2+ Kd1 f3 Qg3 Rh6 Qh4 Rc6 Ba3 Rc3 Qe5 Bg7 Bd3 f1Q+ Qhe1 f2 Nf3 Bf6 Bb4 Bh4 Bf5 Qc4 Q1e3 f1N Ng5 Be1 Na3 Qb3+ Nc2 Qc4 Rc1 a1Q Qf3 Qaa2 Rb1 Nfe3+ Kc1 Qf1 Qf2 Ng2 Ne6 Qac4 Kb2 Qb3+ Ka1 Qbc4 Rg1 h1N Rc1 h2 Rd1 Nge3 Rg6 Ng2 Rh6 Qb3 Bc5 Qbc4 Nb4 Qb3 Nc6 Qbc4 Qff4 Nf2 Bb4 h1B Rh2 Qb3 Rb1 Nd1 Qf2 Qc2 Bh3 Qg6 Bf5 Qh7 Ba7 Qf7 b8B Ne2 Be3 Nd4 Bf4 d6 Ba7 Qd7 Nb8 Qc6 Nd8 Qcc4 Bh3 Bg4 c8R Qc7 Bg3 Ne2 Be3 Nd4 Na6 Kd7 Bef4 Nh4 Rc1 Be4 Rb1 Bh7 Rc1 Bg8 Rb1 Qe6 Rc1 Ng2 e8B+ Ke7 Bh5 Kd7 Nb7 Kc6 Nb8+ Kb6 Nd8 Qef7 Rb1 Be6 Bf5 Ka7 Rb3 Qa6+ Ba3 N1e3 Bd3 Bg4 Bf5 Qe2 Rb1 Qb5 Qe2 Bf2 Rbh1 Nd1 Bb4 Be1 Qf2 Qf1
4B3/1Rb1b2Q/1bb5/1b3N1n/qB2Q2B/1k2b2P/1NRBR1p1/1r1nn1KB w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 f4 e5 a4 d5 cxd5 b5 axb5 exf4 Bb2 a4 Bc1 Ra5 bxa5 Qd7 Bb2 Qe7 Bc1 Qd8 Kf2 Kd7 d4 Kd6 e4 f5 b6 c5 h3 g5 a6 f3 b7 a3 a7 g3+ Ke3 a2 a8Q f2 Bc4 f1B Bb3 f4+ Kf3 c4 Bb2 c3 Qa7 c2 Nd2 c1B Qe1 g2 Kf2 f3 Bc3 g4 Ne2 Qd7 Kg1 Nc6 b8R Nh6 Rh2 Ne5 Rb7 Qa4 Ng3 Be7 Rb1 a1B Rb2 Nd3 Rc2 Bd7 Bb4+ Nc5 Bc4 Rb8 Bb5 Bab2 Bc6 Bb5 Qe2 Ba3 Qd3 Bd8 Qc4 Bc7 e5+ Ke7 e6 Kd6 e7 Be8 Kf2 g1B+ Kf1 Be3 Re2 f2 Qd3 Bd7 e8B Bcb2 Kg2 f1N Qe4 Bc1 Kh1 Bb6 Kg2 Bf4 Kg1 Be5 Nh5 g3 Ng7 Ng4 Nc4+ Ke7 Ne3 Kd6 Nd1 Nf2 Nb2 Be3 Bd2 Ncd3 Bb4+ Bc5 Bd2 Ne1 Bb4 Ke7 d6+ Kf6 d5 Bb6 Nf5 B5f4 Rc7 Be5 Ba8 Bdc6 d7 Bd6 Rb7 Bdc7 Bd2 Bac5 d8B+ Be7 Qc4 Ke5 d6 Bd4 d7 Bdb6 Qb4 Kd5 Qh4 Ba3 Bf6 Be7 Bfc3 Kc5 d8B Kd5 Qh7 Kc5 Nd1 Kc4 Bb4+ Kb3 Qa5 Nh2 Nb2 Nhg4 Qa7 Nf6 Qh4 Nh5 Qe4 Bf8 Bg5 Be7 Bh4 Rd8 Bc1 Rd1 Bcd2 Rb1 Qb8 Qa3 Qd8 Qa4 Qd7 B7g5 Qg7 Be7 Qh7 Ra1 Qe5 Bd7 Ra7 Rb1 Bh1 g2 Qe4 Bdc6 Rb7 Nd1+
4R1b1/npQP2K1/2Qq2R1/4BRbB/2n1Rqnr/1n3R1N/3n1N2/1kn4Q w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ra6 h5 Rg6 hxg6 Nb8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 a4 h4 a5 h3 g7 h2 d3 b3 d6 Kb4 f6 c5 f7 f3 d4 c4 g6 b2 a6 f2 a7 c3 a8Q c2 d5 Kb3 d7 Nf6 g8R Rh4 d6 Bh6 f8R Bg5 Be2 f1N g7 Nd2 Nc3 b1N Ne4 Na3 Nf2 Nac4+ Kf5 e5 Kg6 e4 Ra5 e3 Qa6 Qb6 d8Q Be6 d7 Ng4 Ngh3 Qd6 Raf5 Nc6 Re1 h1Q Bb2 Qe4 Qc7 Na7 Be5 Qf4 Qac6 Ka2 R8f7 c1N Re8 Ndb3 g8R Bd5+ Kg7 Kb1 Bf3 e2 Rff8 Nf6 Bh5 Ng4 R8f6 Be6 Rg6 Bd5 Rgf8 Bg8 Qdd5 Qa3 Qh1 Qd6 Rd1 e1N Rd4 Nf3 Re4 Nfd2 R8f7 Qh2 Rf3 Qg3 R7f5 Qf4
6kn/P1p5/1q1NR3/KB1qB2q/2R1q3/nQB1b3/1R1qr1qR/N1R1Q2b w - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 c4 g5 fxg5 f4 g6 d5 cxd5 Ra6 b4 axb4 g5 Rf6 h4 Rf7 h5 Rf5 h6 Nxh6 exf5 Ng8 a4 h5 d4 e5 Kd2 e4 a5 b3 Kc3 f3 f6 e3 d6 f2 Kb4 b2 a6 e2 g7 Kf7 a7 e1Q+ Bd2 h4 g6+ Ke8 d5 h3 f7+ Kd7 Ka5 b4 Bc3 b3 Nd2 b1Q Rh2 b2 Ngf3 Qh4 Nc4 Bb7 Nfd2 Qbe4 Rc1 b1Q Nb3 Qd2 Qe1 Na6 Na1 Nh6 g8Q Qh5 g7 Nb4 Be2 Kd8 d7 Ke7 d8R f1Q Rb8 Nc2 Nd6 Na3 Bb5 Ba8 Rb6 Qfg2 Rc6 Qbb2 Rc4 Bc6 Qh7 Bb7 g8R Bg7 f8R Nf7 Rd8 Bh6 Rb8 Be3 Rg6 Re8 Re6+ Kf8 Qf5 Ba8 Qf3 Kg8 Qfd1 Nh8 Qb3 Rd8 Ne8 Rd7 d6 Re7 d7 Bb7 d8B Bc6 Rh1 h2 Nd6 Re8 Bf6 Qhd5 Rg1 h1Q Be5 Qh5 Rh1 Bb7 Rh2 Ba8 Bb4 Qbd4 Bc3 Qb6+ Ka4 Rf8 Rb7 Rf2 Kb4 Re2 Ka4 Qbc5 Ka5 Qb6+ Kb4 Qf4 Nf5 Qd8 Qbd1 Qbd4 Ba4 Qg7 Ka5 Qc5+ Rb5 Bh1 Qc2 Qcd4 Rb2 Qg2 Qb3 Q8d5+ Bb5 Qfe4 Nd6 Qb6+
1nr5/nB1N4/2b3B1/3Rp2B/2k1qQ1n/2N1BqRn/2R1qPrq/3K2QB w - - 0 1 illegal: No possible last move
q2N4/1B1N2b1/B4r1p/kP1Rrrqn/r2B1bQ1/1qR1Q3/q1QB3B/2K5 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Bg2 f4 Bf1 Bb7 Na3 Be4 Nb1 Bf5 gxf5 Nc6 h4 g4 Rh3 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Qa5+ Nc3 Qc7 Nb1 Qd8 Kd2 a5 c4 d5 e4 Kd7 b4 Kc7 e5 Kb6 g6 g3 g7 d3 e6 h6 e7 d4 e8Q f2 c5+ Kc7 b6+ Kb7 f6 Ka6 c6 a4 c7 a3 f7 f3 b7 g2 c8B a2 Nh3 g1Q Na3 Qgg5+ Qe3 Nf6 g8Q Bd6 f8B Bf4 Bc5 Nh5 Nc4 Qe8 Bg2 f1R Qc2 f2 b8B+ Kb5 Be5 Ra4 Nb6 Re1 Nd7 f1R Qg7 Rf8 Bgb7 Rf6 Rg1 Qf8 Rg3 Qd8 Rb1 a1B Rb3 Qa5 Rc3 Qa8 Qg8 Bb2 Qe6 Rf3 Qg4 Re2+ Kd1 d2 Rg2 Qg8 Bed6 Qa2 Ng5 Ba1 Nf7 Rff2 Qeg3 Re5 Qe3 Rf3 Nd8 Rf1+ Ke2 Rf2+ Kd3 d1Q+ Bd2 Qc1 Rg1 Rf3 Rd1 Rff5 Ke2 d3+ Ke1 Rf2 Bd4 Rf6 Nc5 Kb6 b5 Ka5 Bb8 Bh2 Nd7 R2f5 Ba6 Bf4 Bcb7 Qcb2 Rb1 Qbb3 Kd1 Qg8 Rb4 Qg5 Rbc4 Bb2 Rc5 Ba1 Rd5 Bb2 Be1 d2 Rc4 Re7 Qcd3 Rb6 Bc5 Bg7 Bd4 Rbf6 Rc3 Bg3 Bf4 Ree5 Qde2 Bf2 Bh2 Bg3 Qg2 Bf4 Qgf2 Qc4 Kc2 d1Q+ Kb2 Qdb3+ Kc1 Qbb4 Qc2 Qa2 Bd2 Qbb3
1Rn5/Qb2B3/1qR3pq/2q1R1bN/Pr1k1b1N/3q1R1Q/B6R/1bK3nN w - - 0 1 illegal: No possible last move
q6b/Q1K2b2/1r1QRrB1/2BRb1Q1/1QR5/1qP2pr1/N1q3kb/NQ1b4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Bd2 g5 Be3 f4 Bc1 Ne7 h3 Nf5 gxf5 Nc6 h4 g4 Qd3 Ne5 Qd2 Nf7 Qd1 Ng5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kd2 Kf7 Kd3 a5 Ke4 d5+ Ke5 h5 b4 g3 e4 a4 f6 Kg6 f7 a3 b6 d3 b7 a2 b8Q d2 b5 h4 b6 Kh5 b7 Kg4 g6 d4 g7 h3 g8Q+ Kh4 Na3 f2 Ne2 g2 Qd6 g1B b8Q d3 Qa7 h2 Nc3 Rh6 Rb1 a1B Rb5 f3 Rd5 Rb8 Qe1 d1R Be3 d2 Bd3 Kh3 Qg5 f1Q Bc5 Qg2 Qf1 Rb2 Na2 Be6 Qe1 Be7 f8Q Qa8 Qfb8 Rdb1 Qb4 d1B Qf1 Bf7 Qfe1 Bg6 Ke6 Qf2 Kd7 Bf7 e5 Bf6 e6 Be5 e7 Rf6 e8R Qe3 Bh7 Qb3 Re6 Rc1 Kc7 Rbb1 Qf5+ Kg2 Bg6 Bad4 c3 Qc2 Qba5 Rb6 Qb4 Qb3 Qb1 Rc2 Qh4 Re2 Bc2 Re4 Qh6 Rg4 Bg6 Rg3 Qhc1 Bgf2 Re1 h1Q Qg5 Qh2 Re4 Bg1 Nc2 Qh7 Na1 Bh2 Bh5 Qg6 Rf4 Qgc2 Bg6 Rf5 Re4 Bh8 Rg4 Bde5 Rc4 Rf6
5n1n/Q1nK2QR/N1Q3q1/2q1p3/1Q1nPqR1/1n1B1BrQ/4n3/1N1k1Bb1 w - - 0 1 legal: proof: d4 a5 f4 b5 a4 e5 axb5 c5 f5 cxd4 Bd2 Ra6 Bc1 Re6 g4 h6 Bg5 hxg5 Nf3 Bb7 Ng1 Be4 fxe6 f5 Ra2 f4 Ra1 Bf5 gxf5 Bd6 Nh3 Bc5 Ng1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 b4+ Kc4 h4 d5+ Kf3 g4+ Kg2 g5 e4+ d3 f6 a4 c3 a3 e7 f3+ Kg3 a2 e8B f2 b6 d4 b7 Na6 b8Q Qd6 b5 Qc5 f7 Nh6 b6 Nc7 h5 Rg8 b7 Ne6 Qd2 Kb3 Qc1 d2 c4 d1N Nh3 d3 Qa7 d2 Bb5 Nc3 b8Q d1N Nf4 Nd5 Nd3 N1e3 Nb4 Ndc7 Na6 Nc2 Qbb7 Be7 f8Q Nf7 h6 Nh8 h7 Ncd4 Qg7 Bf8 Qe1 Kc2 Qb4 Kd1 Qc6 Be7 Bd3+ f1Q Rh2 Qf6 Rh6 Bd8 Rh3 Qg6 Rh6 Qf8 c5 Qff6 Bf1 Qff7 Bbd3 Qf4+ Kg2 g3 Kh3 g2 Rh5 Qe3+ Kg4 g1N Rh3 Nge2 Rh5 Nf7 h8Q Be7 Qhh7 Nh8 Rh2 Qc1 Qh3 Qd2 Qe8 Qc1 c6 Bc5 Qea8 Nc2 Q8b7 Bg1 Q7b5 Ncd4 Qd5 Ncb5 c7 Qc5 c8B Nbc7 Qdb7 Qf6 Qc6 Qf4+ Kh5 g4 Rh1 Nf7 Kg6 g3 Bd7 g2 Rh2 Qg3+ Kf6 Nh8 Be8 Qe3 Bh5 Qd2 Bf3 Qdc1 Qgh6 Rg3 Qg7 Qe3 Qd6 Qf4+ Ke7 Be3 Kd7 g1Q Qc6 Qg2 Qhg4 Bg1 Rh4 Qh3 Rh7 Qh5 Qh3 Qg6 Na3+ Qcc1 Rb1 a1N Rb2 Nab3 Nb1 Qc5 Rd2+ Ke1 Ra2+ Nc3 Re2+ Kd1 Rg2+ Nce2 Qf5 Rh3 Rg4 Rg3 Qh5 Qc3 Qhh6 Qc5 Qh3 Nf8+
R1Rb3B/1n6/R3b3/rB4k1/N1P5/bQ1NKp1q/2qRb2q/bqR2B1Q w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 Be3 a5 Bd2 g5 Bc1 Nc6 h3 Nce7 h4 Nf5 gxf5 g4 Qd2 Ra6 Qd3 Rg6 Qd1 Rg5 hxg5 Ke7 Ra2 Kf7 Ra1 Ke8 Kd2 Kf7 c4 d5 e4 h5 b4 d3 f6 Kg6 b6 h4 b5 a4 f7 d4 b7 h3 b8Q g3 e5 f2 b6 g2 b7 h2 e6 a3 e7 f3 e8B a2 Na3 Nh6 Qe1 Qb6 Bc6 Be6 Ne2 g1B Bb5 Nf5 Nb1 Nd6 Bb2 Rh5 Nc1 Kf5 g6 Kg5 g7 Be7 f8R Bd8 Be2 f1Q Nc3 Qh3 Na4 Bf2 Rf1 h1Q Rf7 Q1h2 Rd7 Bg3 Qd1 Be5 g8R+ Bg7 Re8 Bf8 Qb3 Bfe7 Qa7 Bf8 b8R Nb7 Rc8 Ba3 Qb8 Qbc7 Rd6 Qh7 Qc7 Qg6 Qh7 Qgf5 Rf2 Qg6 Rb1 a1B Bf1 Qe4 Ra6 Qef5 Kd1 d2 Nd3 Qg6 Kc2 d1B+ Kd2 Be2 Rc1 Qgf5 Nf4 d3 Ke3 d2 Bh8 d1Q Nd3 Qc2 Rf8 Bd1 Rd2 Be2 Rca8 Bc7 Rfc8 Qb1 Ndc5 Qfc2 Nd3 Bd8 Qg6+ Kh4 Qg1 Rd5 Qh1 Kg5 Bc6 Ra5 Be8 Q2g2 Bb5 Qgh2
1k1B2B1/2n1q3/1Nq1B1RK/r1b1P1q1/2Qpnq2/RB1B2N1/3n4/nq1Q2R1 w - - 0 1 illegal: No possible last move, all moves rejected
NBNQ2n1/R1q3R1/K1kn1q1r/2Pb4/4B1Bq/3B3n/q5np/1qB1QN2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Qd2 a5 Qd3 f4 Qd1 Be7 h4 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 g4 Bh3 Kf8 Bf1 Bg5 hxg5 Ke8 Kd2 d5 Kd3 Kd7 b4 h5 e4 f2 c4 h4 g6 h3 g7 a4 e5 a3 b6 f3 b7 a2 f6 g3 f7 h2 f8Q g2 c5 Ne7 g8B Rh7 b5 Qa5 b6 Rh6 e6+ Kc6 Qd8 Nf5 e7 Nd6 e8B+ Nd7 b8B Bb7 Bh5 Nf6 Bh7 Ng8 Ne2 g1N Ng3 Nh3 Be4 Qb4 Be2 f1Q Qe1 f2 Nf5 Qg2 Bg6 f1N Nd2 Ne3 Nf1 Qg3 B2f3 Ng2 Rg1 Qg5 Bh7 Qf6 Bg4 Ba8 b7 Qc4+ Kd2 d3 Bg6 Qh4 Bh7 Qa4 Kc3 d2 Bd3 Qc2+ Kb4 d1Q Ka5 d4 Ka6 Qde2 Bg6 Qee7 Bh7 Qc7 Bg6 Nf7 Nd6 Qb2 Nc8 Nd6 Bh7 Qb3 Bhe4+ Qd5 Bc2 d3 Bb1 d2 Bbd3 d1Q Bge2 Ngf4 Rg7 Qc2 Bg4 Ng2 Ba7 Qd7 Ka5 Qb1 b8N+ Kb7 Na6 Qde7 Nc7 Qef6 Bg6 Qdf7 Bb8 Q7e7 Nd5 Qc7+ Ndb6 Kc6 Bh7 Bb7 Bhg6 Ba6 B6f5 Bc4 Bh7 Bd5 Bhe4 Qd7 Na8 Qb3 Rb1 Qc4 Rb7 a1Q+ Ba3 Qde7 Ra7 Qb1 Bc1 Qcc2 Ka6 Qc7 Bb2 Qcf2 Bc1 Qfa2+
1b5q/2R1bBN1/1QNBbN1n/Q3R3/n2b3k/N2PK2b/n4pb1/n4NR1 w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 Bh3 dxc4 Bg2 b5 axb5 f3 Bh3 a6 Bf1 f4 h3 h5 Na3 g5 Nb1 a5 Qa4 Rh6 Qd1 Rf6 h4 Rf5 gxf5 g4 Qc2 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Ba3 Qb3 Be7 Qd1 Bf8 Kf2 Kf7 b4 c5 e4 h4 e5 h3 f6 Kg6 f7 Kh5 b6 h2 e6 c3 e7 a4 e8R c4 g6 a3 b5 a2 g7 c2 b7 c3 b6 Kg5 Na3 Nh6 g8N Na6 b8N Be6 b7 Kh4 Nc6 Nc5 b8Q Be7 f8N Na4 Qb6 Qa8 Rb1 a1N Bc4 Qd8 Bb2 c1N d3 c2 Qe1 Na2 Nf6 c1B Qea5 Qc8 Be5 g3+ Ke1 g2 Kf2 Bb2 Bd6 Be5 Rc1 Qd8 Ne2 g1B+ Kf1 f2 Ng3 Qa8 Ke2 f3+ Ke3 Qb8 Nf1 Qd8 Bb4 Bb8 Bd6 Qc8 Nh5 Qd8 Nd7 Qc8 Ndf6 Qd8 Nfg3 Qc8 Ng7 f1B+ Kf4 Bg2 Nf1 Bd4 Rg1 h1B Bb3 Beh3 Bf7 f2 Rc5 Be6 Re5 Beh3 Rd8 Be6 Rd7 Bgh3 Ra7 Qh8 Rc7 Bb2 Ke3 B1g2 Qba6 Bc3 Q6b6 Bd4+
3r1QB1/2Kb1Qq1/1r1Nb1pR/1r1B2bn/nBRP3p/1k1NQ1B1/6B1/3q4 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 e5 a4 exf4 axb5 g6 h4 Bf5 h5 Bc8 g3 Qf6 h6 Qg7 hxg7 fxg3 b4 Ke7 e4 Kd6 Ke2 f5 Ke3 h5 Kf4 c5 d4 a5 e5+ Kd7 d6 Ke6 d7 Kd5 d8Q+ Bd7 b6 c4 b7 a4 e6 g2 b5 c3 e7 a3 e8B c2 b6 a2 Ba3 c1Q+ Qd2 Nf6 Nh3 g1R Qc7 Na6 b8B Nc5 b7 Ra6 Bg2+ Kc4 Ke5 f4 Nc3 f3 Nb5 f2 Nf4 f1B Bb4 Rb6 Nd3 Kb3 Nd6 Na4 Qe3 Qd1 Rc1 a1Q Rc4 Be7 Bf7 Rd8 g8B Be2 Rh4 Beg4 Bfd5 Bge6 Rh3 Ne8 Rh2 Bg5 Rh4 Nf6 Rh1 Bc6 Qf7 Bcd7 Bc7 Rf1 b8Q Rf2 Qc8 Rb2 Bb8 Re8 Qd8 Rb1 Qde7 Rd8 Qef8 Rb2 Ne8 Rb5 Kd6 Qa2 Kc7 Qa3 Ba5 Qe7 Bb4 Rb1 Nd6 Rb2 Q7e8 Qg7 Qef7 Rb1 Rf1 Rb2 Rf5 h4 Re5 Bh6 Rh5 Bg5 Rh6 Nh5 Ba7 Qe5 Bac5 Rb1 Be1 Rb2 Bcb4 Qg7 Bg3 Rb6 Bd2 Ka3 Ba5 R2b5 Bb4+ Kb3
1KR5/1q1Qn3/1Rb1p3/1rBPk3/N1p1qR2/1R1nQ1N1/1q2b1B1/R3Nn1r w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 g6 Be6 g5 Bg7 c3 Bd4 cxd4 Bg4 f3 Bxf3 d5 Bg4 Rh2 Bd7 Rh1 Bc8 Ke2 Kd7 d4 Kd6 b4 a5 b6 h5 g7 c5 b5 c4 g6 h4 b7 e6 b6 a4 Nc3 a3 Bg2 h3 Na4 a2 Nf3 e3 Qb3 h2 Rf1 h1B Ne1 Rh7 Kf3 e2 Ke4 f3 Be3 Nc6 b8R f2 b7 Nge7 g8R Qc7 g7 Bd7 Rgc8 Qa5 g8N Nf5 Nf6 Ra6 Nh5 Nb4 Ng3 Rb6 Qa3 Rb5 Qc3 Ke7 d6+ Kf6 Qc1 Be8 d5 Nd3 d7 Qa6 d8Q+ Ne7 Bc5 Bc6 Qe3 Rh8 Qd7 Rh7 Rb1 a1Q Rb3 Rh6 Ra8 Qb2 b8R Rh5 Rb6 Rh3 Nf3 Rh6 Ra1 e1Q Rab8 Qee2 Ne1 f1N Rf8+ Kg7 Rbc8 Rh2 Rh8 Kf6 Rh4 Qec2 Bf3 Bg2 Rg4 Bh3 Bg2 Rh1 Rf4+ Kg7 Qe8 Bg4 Qd7 Be2 Rc3 Nf2+ Ke5 Qe4+ Kd6 Nd3 Kc7 Kg6 Rb3 Kg7 Rg4+ Kf6 Rf4+ Ke5 Kb8 Qb7+
1Bb3K1/1Q1R4/1R1pN3/q2q4/knr1BrN1/6bQ/2bPnB1p/nR2R2R w - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 b4 gxh4 bxc5 b5 a4 a6 axb5 axb5 Ke2 e5 Ke3 h5 Ke4 b4 Kd5 b3 g4 h3 f4 e4 c4 h2 f6 e3 f7+ Ke7 c6 e2 c7 e1N f5 b2 g5 h4 g6 h3 g7 Rh4 c5 Ra2 c6 Nd3 Qf3 Rh5 Nc3 b1B Bb2 Ne1 Bd3 Rh8 Ne4 Bb7 c8Q Ng2 Nf6 Rh4 Be5 Ra3 Be4 Qb6 Ne2 Ra7 Ng4 Bc2 Rae1 Na6 Bb8 Nh6 g8R Nb4+ Ke5 Ba6 c7 Nf4 Nd4 Ne2 Rg6 Rb7 Ne6 Qa5+ Nc5 Rb6 Qb7 Rf6 c8R Bg7 f8R Rc6+ Nf6 Rf4 Rfd8 Bf8 Ng4 Rc7 Rhg1 h1Q Rb6 h2 Qh3 Qf3 Rh1 Qd3 Qd5 Qb3 Ne6 Rc4 Rc5 Bb7 Rcb5 Bc8 Qb7 Qba2 Nf6 Bg7 Rg8 Bf8 Ng4 Ke8 f6 Nf5 Rg6 Nfd4 Rg7 Nb3 f7+ Ke7 Rh7 Na1 Rg7 Qb3 Rh7 Bh6 f8B+ Ke8 Bc5 Bf8 Bf5 Bd6+ Kf6 Qf3 Kg7 Qd5 Bf2 Bc7 Rh4 Be5+ Kg8 d6 Bc7 Kd7 Be4 Rf6 Rh5 Bg3 Rf5 Rf7 Rf3 Rf6 Rb3 Rf3 Rbb1 Rf4 Bb8+ Rc7 Qa8 Rc4 Rb7+ Kc6 Rd7+ Bb7 Qa7 Bc8 Rbb7 Nd3 R7b2 Nb4 Qa8+ Kb5 Qb7+ Ka4 Rb3 Nd3 Rb6 Nb4
k2NR1Br/N7/p2b2pK/2Q1NPr1/2qn4/NRqBB2b/1n1rq3/3QN3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 c5 Kg4 Kc7 Kg5 Kb7 f4 e5+ f6 c4 b4 c3 d4 a6 g4 e4 d6 c2 f5 e3 d7 e2 b6 e1Q d5 h3 d6 h2 b5 Qe5 Be3 c1Q Bd3 Qcb2 Nf3 Qf2 Ra3 Qc3 Re1 h1R Rb3 Qe2 Na3 Qe7 d8Q Rh3 d7 Rh1 Qe8 Qa2 Qg6 Qe6 f7 Bc5 f8Q Nc6 d8N+ Kb8 b7 Qe2 Qe7 Nb4 Qf8 Ka7 b8N Rg1 Nd7 Bb7 Nde5 Ne7 Kh6 Qec4 g5 Nec6 b6+ Kb8 Qe7 Nd4 Qf8 Bc6 b7 Bd6 Qe7 Ka7 Qc7 Rc8 b8N+ Ka8 Qa5 Rc7 Qc5 Bb5 Nbc6 Rd7 Na7 Rg2 Bc2 Nd3 Bb1 Nb2 Bd3 Qf1 Re2 Rg7 Re1 Rd2 Re2 Bc6 Ne1 Bb7 Qe8 Be4 g6 Bg2 Qf7 Rgg8 g7 Bh3 Qg6 Qf3 Rf2 Qe2 Rf4 Rf8 g8B Rf7 Re4 Rg7 Qe8 Rg3 Qg6 Rg2 Ng4 Rg1 Re8 Rg3 Ne5 Rg1 Nec2 Rg5 Ne1 hxg6+
2B2rR1/Br1qkp1P/BQQbN2b/B1Rn1qq1/7p/nB5R/2n5/5NK1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 b5 axb5 cxd4 g4 g5 hxg5 h5 Ra2 h4 Ra6 Nc6 Ra1 Nb8 Kf2 Bb7 Ke1 Be4 Rh3 Bg6 Rh1 Bh5 gxh5 Ba3 Kd2 Be7 Ke1 Bf8 Kf2 a5 b4 d5 e4 a4 c4 d3 b6 f3 h6 d2 h7 d4 e5 a3 b5 d3 e6 a2 g6 Qd6 c5 Nd7 g7 Ne5 e7 Qc6 b7 Kd7 b8B Qg6 e8B+ Ke6 c6 Be7 c7 Bf8 c8B+ Kf6 b6 Ra7 b7 Bd6 Rh3 Nc4 Qa4 d1Q Bd2 Qg5 Ba5 d2 Ne2 Ke7 Nd4 Nf6 g8R Na3 Ba6 Nd5 Qc6 Qc2 Ne6 d1Q+ Nd2 Qcf5 Rb1 a1B Nf1 Bg7 Rc1 Bh6 Rc5 Qa4 Rg6 Rf8 Rg8 Qd2+ Kg1 f2+ Kg2 Qdg5+ Kh1 Ra8 Ba7 Qd4 b8Q Qdg4 Ng3 f1N Kg1 Nfe3 Qbb6 Rb8 Bed7 Ng2 Nf1 Rb7 Qa4 Qd1 Bdb5 Qdd3 Bc4 Qdd2 Bb3 Nge3+ Rg3 Nec2 Qac6 Qgf4 Rh3 Qa4 Qcc7+ Qd7 Qcc6 Qdg5+
7r/Bk2N3/nb1Rp1qQ/R2pbbRn/BN1R3r/7P/1K2BQ1b/3R3b w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 a4 b5 axb5 f5 d4 c5 e4 cxd4 exf5 Qb6 Nf3 Qc7 Ng1 Qd8 Kd2 d5 f4 Kd7 c4 Kc7 Kc2 g5 h3 e6 b6+ Kb7 c5 g3 f6 g4 f5 g2 f7 g3 a6+ Kc6 b7 d3+ Kb2 d2 a7 Qc7 f6 Rh6 Be2 Qd6 Qf1 d1B Ra5 Qc7 Be3 Rh4 Qf2 Ba4 Nc3 Ne7 Na2 Bh6 f8Q Na6 b8R Nb4 f7 Ba6 Rd8 Rb8 a8R Kb7 Rd6 Ng6 Nf3 g1B Ne5 g2 Nc6 Nf4 Ne7 Bh2 Rd1 g1B Qh8 Rg8 f8R Nh5 Rf5 B6f4 Qh6 Bc2 Rg5 Bf5 Ra4 Bad3 R8a5 Na6 Nb4 Rh8 c6+ Ka8 Bb6 Bde4 Ba7 Qd7 c7 Bh1 c8B Qe8 Bd7 Kb7 Raa1 Qg8 Rd4 Qg6 Rad1 Be5 Bdb5 Bhf4 Ba4 Bgh2 Rc6 Bc7 Rd6 Be5 Bab5 Bd8 Ba4 Bb6
1q1b1R2/2rbQ3/1p4Nn/6Bn/1p1KR1bR/n2R1r1B/k1BPbN2/1R2Q3 w - - 0 1 legal: proof: e4 d5 h4 a5 c4 c5 b4 f5 exf5 cxb4 c5 g5 c6 a4 Qxa4 d4 Qd1 d3 Bxd3 gxh4 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 Ke3 e5 g4 h5 a4 h3 f4 b6 a5 h4 g5 h2 a6 h3 g6+ Ke7 g7 Kd6 f6 Kd5 c7 e4 f7 Qd6 a7 Na6 f5 Kc5 f6 Bg4 c8B Nc7 Qe1 Nh6 g8R Ne6 Bb2 Rh7 Nc3 Ng7 Nd5 Qb8 Ne7 Nh5 Ng6 Be7 f8R Bd8 Bd3 Rc7 Bc2 Kc4 f7 Be2 Rb1 Bg4 Bd3+ Kb3 Bc2+ Ka2 Kd4 e3 Re8 e2 f8Q Bd7 Re4 Bg4 Qe7 Bd7 Qd1 e1N Rf8 Bg4 Nf3 Bd7 Nfe5 Bg4 Nd3 Be2 Rg1 h1B Rg3 h2 Nf2 Bhf3 Bh3 Bg4 Rd3 h1B Rff4 Bd7 Rh4 Bhf3 Ba1 Bfg4 Bc3 Ng2 Qe1 Ne3 Bb2 Nc4 Ba1 Qb7 Bc3 Rac8 a8R+ Na3 Bb2 Rc3 Rb8 R8c6 Rc8 Qb8 Ba1 Bc7 Rf8 Bd8 Kd5 Rf6 Bb2 Rc8 Ba1 Rf3 Bf6 Bd1 Kd4 Rc7 Bg5 Be2
2B2n1k/r2p4/bbn1p1r1/2P1q1QN/KQ2Qr2/Rb1R4/B6N/1bQ2B1Q w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 b5 exf5 Na6 Ba3 Bh6 axb5 Bf8 b6 Nb8 b5 Ba6 Bc5 Bc8 Bb4 axb4 Kd2 Kf7 c4 Kg7 Kc2 h5 Kb3 h4 f4 h3 g4 h2 g6 d3 f6+ Kh6 b7 d2 f5 Bg7 b6 Ra5 c5 Ra7 f7 Ra8 f8Q Ra4 f6 Ra7 f7 Qe8 Ne2 Ra2 g5+ Kh5 Ng3+ Kh4 Qc1 d1R Nh5 Nh6 Nd2 Ra5 Ra3 Ng4 Qg8 Ne5 f8Q Nbc6 b8Q Rh6 b7 Ra7 Qa8 Bf6 b8Q Ba6 g7 Ng6 Ka4 b3 Nf3+ Kg4 Rg1+ Kf5 Rg3 h1B Nh2 b2 Qb4 b1B Rgd3 Bd5 Qab7 Qb8 Qe8 Nf8 g6 Qe5 Qea8 Bda2 Qd5 Rd2 g8B Rf2 g7 Kg6 Qbe4+ Rf5 Qbb4 B2c4 Bf7+ Kh7 g8B+ Kh8 Be6 Rf3 Beh3 Rg6 Bhg2 Rf4 Qab7 Qc3 Qg5 Qe5 Bd5 e6 Qa8 Nd4 Bb7 Bca2 Bc8 Nc6 Bf3 Be7 Bd1 Bd5 Bb3 Bd8 Ba2 Bb6 Qh1 Bdc4 Qb7 Na5 Qbg2 Nc6 Qe4 Bb3+
b1B1b1n1/2k1B1qQ/4r2R/3BrK1N/qBN5/5PQp/1RpBN3/1q4qn w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 b4 a5 h4 gxh4 Qb3 a4 Qc2 Bg7 Qd1 Bd4 Be2 Bb6 Bf1 Ba5 bxa5 Bg4 Nh3 Be6 Ng1 Bc8 Ke2 Kd7 Ke3 h5 Kf4 c5 d4 e5+ Kf5 e3 g4 e2 b6 e1Q g5 c4 d6 c3 b7 c2 d5 h3 a6 h4 g6 a3 a7 h2 g7 a2 Bh3 e4 Nd2 e3 Rb1 a1Q Qh5 e2 Rb2 Qb1 Qh7 Qe7 Nc4 Qd1 Bd2 e1Q Ne2 Nc6 b8Q Qg1 Qb3 Qe8 Qg3 Ne5 Bb4 Kd8+ d7 Nd3 Bd2 Rb8 a8B Rb6 Bb7 Re6 Bb4 Nf6 g8N Qf8 Bg2 Qg7 Ba6 Bb7 Be4 Ba8 Bc8 Qa1 Bd2 Qdb1 f3 Qa4 Bb4 Nf2 Bd2 N6g4 Nf6 Rhe8 Nh5 Nf6 Ne5 Kc7 d8B+ Kd6 Be7+ Kc7 Beb4 Ng8 Nc4+ Re5+ Kf4 R8e6 d6+ Kb8 d7 Kc7 Beb7 h3 Bd5 Qgc1 Re1 h1B Rg1 Bg2 Rd1 Bf1 d8B+ Kb8 Bde7 Kc7 Nd4 Bd3 Ne2 Bg6 Re1 Be8 Rg1 Nh1 Rg2 Re3 Kf5+ Rd6 Qh4 Ra6 Rg6 Qg1 Rh6 Rae6 Qg3+ R3e5+
2Bbn1bn/NnB2q1B/8/1KrN3k/3R2rN/5p1n/PR1QQ2p/1N1Nq3 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 d5 cxd5 c5 dxc5 g5 hxg5 Bd6 Qd3 Be7 Qd1 Bf8 Kd2 b5 Kd3 h5 g4 f5 e4 Kf7 d6 Kg6 c6 f3 e5 h4 c7 b3 d7 h3 e6 f2 e7 b2 e8N f4 Kc3 f3 Be3 h2 Bg2 f1Q Nh3 Ra4 Bf4 Ne7 Nd6 Nbc6 Nf5 Qe8 d8Q Rh5 Nf2 Qe1+ Q8d2 b4+ Kc4 b3+ Kb5 Be6 c8N Bg8 Bc7 Qf7 Bh3 Nd8 Na7 Nb7 Q1e2 Bg7 Rf1 Bf6 Nd1 Rc4 Rf2 Rh4 Nbc3 b1N Rg2 b2 Rf2 Rh5 Nh4+ Kg7 Rg2 Ng6 Rf2 Nh8 Rg2 Be5 g6 Bf6+ g5 Bd8 Bc8 Rd4 Rg4 Ra4 Rd4 Na3+ Kc6 Nc4 Nb1 Ncd6 Kb6 Qe7 Kc6 Ne8 Kb5 Kf8 g7+ Kf7 Kc6 Qf8 g6+ Kf6 Kb6 Qf7 Kc6 Rc5+ Kb6 Bh7 g8N+ Kg7 Nf6 Bg8 Nd5 Rac4 Qb4 Kh6 g7 Kh5 Qbd2 Ra4 Rd3 Rg4 Rd4 Rc6+ Kb5 Rc1 Na3 Rc4 Rc1 b1N Rc2 Rc3 Rb2 Rc5+ Kb4 Nc3 Nb1 Ne4 Ka4 Bh7 g8B Ng5 Kb4 Nh3 Ka4 Bf5 Bh7 Be6 Kb4 Qg7 Ka4 Bg8 Kb4 Qf7 Ka4 Rc3 Kb5 Rc5+
6QK/1Brq2RB/NRQ4B/B1q1kbr1/1p2b1n1/2P2b1N/p1bB3R/1n6 w - - 0 1 legal: proof: b4 b5 d4 c5 bxc5 a5 e4 b4 c6 Ra7 e5 Rb7 e6 Rb5 g4 h5 f4 hxg4 a4 Ba6 axb5 Bb7 f5 Bc8 f6 exf6 b6 Bd6 Qf3 Rh7 Qd1 Be5 dxe5 Rh8 Kd2 Ke7 Kd3 d5 Kd4 g5 h4 a4 c3 g3 b7 g4 h5 f5 c7 g2 h6 f4 h7 f5 Qd2 g3 Ba6 a3 Qd1 f3 Bd2 f4 Qc1 f2 Rh2 f1B Nh3 g1R Bd3 a2 Na3 g2 Nb5 Na6 b8B f3 Qd1 f2 Qb3 Bd7 c8B Nc7 Bb7 Nf6 Bc2 Rf8 h8B Rf7 Bh7 Bd3 Bg7 f1B Bgh6 Ng4 Ba7 Bf5 Bb6 Bc2 Ba5 Bfd3 Rf1 Bc6 Rf6 Qd7 Rg6 Bf5 Rg7 Ne8 Qc4 Nd6 Nc7 Bce4 Qb5 Nc4 Na6 Na3 Qb6 Nb1 Qc5+ Ke8 e7 Ba4 Qc6 Bac2 Rg6 Rg7 Re6 Kf7 e8R Rg5 Rg8 Rf1 Rf6+ Ke7 e6 g1Q+ Rf2 Re1 Rfg6 Re3 Rh2 Qf2 R6g7+ Kf6 Rb8 Qg1 Qc7 Qf2 e7 Qg1 e8Q Qf2 Kc5 d4 Qg8 d3 Qc6+ Ke5 Ba8 Qh4 Rb6 Qh5 Bb7 Rf3 Be1 d2 Kc4 d1B Bd2 Bg6 Kc5 Rf7 Kc4 Qc8 Kc5 Bdf3 Kc4 Kf5 Kd4 Qd7+ Qd6 Qe8 Qc6 Rc7 Rd7 Qh4 Re7 Ne3 Rd7 Qf2 Rf7+ Kg4 Re7 Bgf5 Ke5 Qd7 Kf6 Kg3 Kf7 Ng4 Kf8 Qc5 Kf7 Bg6+ Kg7 Bgf5+ Kh8 Qe3 Ng1 Kf4 Rg7 Ke5 Nh3 Qc5
1B4N1/K3N1Pb/1R1bRp2/Q1BpnQN1/7q/bN2R3/N1b3r1/qkn1r3 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 h4 Qd8 e3 g5 hxg5 Bd6 c3 Bf8 Bc4 d3 Bb3 Bb7 Ba4 Bc8 Bc2 dxc2 Ke2 Ke7 Kd3 Ke6 Kd4 Kf5 g4+ Kg6 b4 h5 c4 d5 e6 a5 e4 a4 e7 h4 Kc5 h3 e5 f6 b6 h2 e6 a3 b7 a2 b5 Bd7 b6 Ra3 Qd3+ Kg7 g6 Nh6 g5 Ra7 Nd2 Nf7 Qf5 Rh5 Nb3 Ra6 Be3 c1B Nh3 Be8 Re1 h1B Rb1 Nc6 b8B a1Q b7 Kg8 g7 Ra8 Bd4 Nb4 Re3 Qd7 Kb6 Bb2 c5 Na2 c6 Be4 c7 Ne5 c8N Nc1 Bc5 Bg6 e8Q Kh7 g8N Bc2 e7 Ba3 Qd8 Qa4 e8R Bd6 Re6 Qh4 Nce7 Ra4 Rb2 Rg4 Ka7 Rg2 Qa5 Kg7 Rb1 Bh7 g6 Rhg5 Rb2 Re2 Rb1 Rgg2 Ng5 Re1 Nc6 Qa2 Nb4 Qb2 Na2 Qa1 Ne7 Kh6 g7 Kh5 Qd3 Kg4 Ng8 Nf3 Qg6 Kg3 Qf5 Kf2 Bc7 Kf1 b8N Kf2 Nc6 Kf1 Qg4 Ne5 Nce7 Kf2 Bb8 Kf1 Rf3+ Ke2 Qf5 Kd1 Rh3 Bd3 Re3 Kc2 Nd2 Be4 Rb6 Bd3 Nb3 Kb1 Nc8 Be4 Nce7 Bc2
1b6/1qq3Qr/2n4q/QQ1RNQ1R/1p2P3/b2npB1N/q4qNk/BQK5 w - - 0 1 legal: proof: e4 g5 h4 gxh4 d4 b5 c4 d5 b4 e5 c5 Ke7 c6 Kf6 f3 Bd7 cxd7 a5 exd5 axb4 d6 e4 d5 e3 Qe2 Ra6 Qd1 Rc6 Nc3 Rc4 Nb1 Re4 fxe4 Qe7 Qh5 Qe8 Qd1 Qd8 a4 Kg5 g4 Kf4 g5 Kg3 g6 c5 g7 f5 a5 h5 a6 h3 a7 c4 a8N c3 Ke2 b3 Nb6 h4 Bb2 c2 Na8 c1B Na3 h2 Nc4 b4 Nh3 f4 Nab6 Nc6 Bg2 Rh7 Ra5 Nh6 g8Q+ Ng4 Ne5 Qc7 Ba1 b2 d8Q b1Q d7 Ba3 Qb8 Bd6 d8Q f3+ Ke1 Qa2 Qb1 f2+ Kd1 Qb7 Qdf8 Bc7 Qbe8 Bb8 d6 Qc7 d7 Qb7 Nf3 f1Q+ Ne1 Qff2 d8Q Qc7 Qgf7 Nge5 Nc4 Nd3 Bf3 Nb2+ Kc1 Qb7 Rh5 Qc7 Rf1 h1Q Q8g7+ Kh2 Ne5 Qhg2 Qff6 Qg4 Qfg5 Qgc8 Qf5 Qa6 Ng2 Qab7 Ng5 h3 Rd1 Kg3 Qd5 h2 Qa5 h1Q Nh3+ Kh2 Qed7 Qhf1 Qe8 Qd3 Qed7 Qdd6 Rd3 Qf8 Qdd5 Qfd6 Qdb5 Qh6 Rd5 Nd3+
4QR1n/B1Q2brB/b2P1RBb/4q1kb/3p4/bq1BN3/1rN3p1/2K2R1B w - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 axb5 c5 fxg5 Nc6 g6 cxd4 g5 d3 e4 d4 Qf3 Nb4 Qg4 Nd5 exd5 hxg4 Kd1 e5 c4 Ke7 b4 a5 h4 f5 c5 d2 c6 g3 b6 f4 d6+ Ke6 b5 Kf5 b7 a4 b8Q f3 h5 f2 b6 a3 b7 a2 h6 e4 h7 e3 c7 Qe8 g7 Be6 c8B Kg4 g6 Be7 Ne2 Qf7 Qc7 Kg5 b8R Nf6 g8B Ng4 g7 Bc4 Bf5 Ra7 Na3 Bf8 Rh6 Ne5 Nc3 Ng6 B1d3 f1B Nd5 e2+ Kc2 e1Q Ne3 d1B+ Kb2 Qd2+ Nac2 Bh5 Rd8 Qe7 Bd5 Qd1 g8B Qe5 Bh1 g2 Bfe4 Bg7 Rf8 Bf7 Bd2 Rb7+ Bb4 Rb5 Rc1 a1B+ Kb1 Bb2 Bc5 Qf3 Ba7 Be2 Rf1 Ba3+ Ka1 Rb2 Bf5 Ra2+ Kb1 Rb2+ Kc1 Qb7 Bfe4 Qb3 Bf5 Be6 Bf7 Rg8 h8Q Bc4 Bfe4 Ba6 Be8 Bef3 Bf5 Bd5 Bfe4 Bf7 Bf5 Ne7 Rf6 Bh6 Bh7 Rg7 Qg8 Ng6 Qh8 Be6 Qg8 Nh8 Beg6 Bd5 Qe6 Bdc4 Qe8 Bf7
R3b1Bk/n3R1nn/Rn5r/1q1N2Np/4B3/Q7/RrpKqBP1/Q3R2r w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qc2 a4 Qd1 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Qe7 Na3 Qd7 Nb1 Qd8 d4 Kf8 e4 Kg7 d6 c5 a6 f5 b6 h5 b7 c4 d5 c3 d7 c2 a7 f3 d6 f2+ Ke2 a3 e5 h3 e6 h2 e7 f4 e8B a2 Nh3 f3+ Ke3 Nf6 Bd3 f1Q Ng5 f2 Be4 Qe7 d8Q Nbd7 b8R Nb6 d7 Nh7 Kd2 Qb5 Rb7 Rb8 Re1 h1R a8R Qe6 Ra6 f1N+ Kc3 Kg8 Qe7 Ng3 d8R Nf5 Qa3 Ng7 Re7 Bd7 Kd2 Rb7 B8g6+ Be8 Nc3 Qg4 Nd5 Qge2+ Kc3 Rb8 Be3 Rb7 Bf2 Rb8 Rb1 a1N Rb2 Nb3 Qda1 Na5 Ra2 Nc6 Bgf5 Rb7 Rda8 Na7 Bc8 Nf8 Bh3 Rh6 Be6+ Kh8 Bg8 Nh7 Re6 Rf7 Re7 Rf4 Bd3 Rb4 Be4 Qf1 Kd2 Rb2 Qb4 Qfc4 Qa3 Qe2+
q2Q1N2/q1rr2B1/Qq6/p3Bp2/3PrR2/1n2NrB1/3bN1Rn/1kNK1N2 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 g5 f6 g6 Be6 Qb3 Bf7 Qc2 Kd7 Qd1 Ke8 Bh3 h5 Bg4 hxg4 gxf7+ Kd7 b4 Kd6 h4 Ke5 d4+ Ke4 h5 c5 b6 g5 b7 a5 h6 g3 b5 g2 h7 f5 d6 g4 d7 g3 b6 f3 Bh6 c4 Rh2 c3 Bg7 c2 Nd2+ Ke3 Nf1+ Ke4 e3 c1R Ne2 g1Q Rg2 Rc7 Nc1 Nf6 Qe2 f2+ Kd1 Qh1 Qa6 Bb4 f8N Bd2 Rb1 Rg8 h8N Ng4 Nhg6 Ra7 Nf4 Nh2 Nfe2 Qf6 d8Q Nd7 b8B Nc5 b7 Nb3 Ra1 Qb6 Ra2 Rd7 Bbe5 Rh8 b8B Rh4 Ra1 Rac7 Rb1 Kf3 e4 Qa7 Rg1 g2 Bg3 Qb6 e5 Ke4 e6 Rf4 e7 Rg4 e8N Rh4 Ne3 f1R+ Be1 Rff4 Bg3 Rf3 Rb2 Qa7 Rf1 g1Q B3e5 Qg6 Rc2 Rb7 Nc7 Qgb6 Ncd5 Qg2 Rf2 Rbc7 Nf1 Rhf4 Bh8 Qg8 Nde3 Qd5 Bhg7 Qda8 Na2 Rc4 Rg2 Kd3 Rg4 Re4 Bg3 Qac6 Bbe5 Qca8 Rf4 Bc3 Ng1 Be1 Rg2 Bd2 Nc1+ Kc3 Bf2 Kb2 Bg3 Kb1 Nge2 Rcc7
nQ2q1rK/1qBN1BP1/N2Rr3/8/QQqNk3/N1n3R1/p3p1n1/1b3q1N w - - 0 1 illegal: No possible last move, all moves rejected
1rQ2n1q/BpbQ4/PNrNr3/N2RNq1R/2nKnR1N/3B3k/1r5p/8 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Kf2 Kf7 a4 e5 d4 c5 f6 Kg6 a5 h5 d6 h4 a6 b3 d5 b2 f7 e4 d7 f3 Ke3 f2 d6 h3 Nc3 b1N Na4 c4 Nf3 Bg7 f8N+ Kf7 g6+ Kf6 g5+ Kf5 Ra2 Kg4 Rd2 Bc3 g7 Nf6 g8R Qc7 d8N Qc8 g6 Nbd7 g7 Na3 Ng6 Ba5 Rf8 c3 g8Q c2 Nc6 Bc7 Na5 Rb8 Bb2 c1R Bd4 Kg3 Ba7 Rc6 Nb6 Rh7 Bb5 f1Q Rhh2 Re7 Qh8 Re6 Nge5 Qd8 Rf7 Qf8 Be2 Qg7 Qc8 Nf8 d7 Qh8 Rh1 Kg2 d8N Kg3 Rdd7 Kg2 Qd6 Nc4+ Kd4 e3 Bd3 e2 Qe7 e1R Rd5 Re2 Qed7 Ne4 Rf6 Qh6 Ndf7 Qh8 Nd6 Rb2 Rf5 Kg3 Rh5 h2 Nh4 Qf5 Rf1 Kh3 Rf3+ Ng3 Rf4 Ne4
r1b4Q/n2K1b1b/k4BQN/Np1p1n2/1P3R1B/3RbRb1/7Q/2rQ2rQ w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 a4 d4 b6 Bc4 c6 exf5 c5 Bb3 axb3 a4 b5 a5 Qb6 axb6 cxd4 Kd2 Kd8 Kd3 g5 Ke4 e5 Kd5 b2 h4 d6 f4 d3 c4 g4 c5 d2 h6 e4 h7 g3 b7 Kc7 c6 Kb6 c7 g2 h5 e3 h6 e2 f6 e1R f7 Bd7 c8Q Ra2 f5 Re7 f6 Ra8 Ra3 Bh3 Qcc2 Re2 Rf3 Ra4 Qg6 Rf2 Ne2 g1B Ng3 Ra5 Na3 b1B Bb2 Bhf5 Nc4+ Ka6 Rh3 Bc8 Nf5 Ra1 Na5 Nc6 b8Q Bb7 Ke6 d5 Qh2 Bd6 f8R Bg3 f7 Na7 Bf6 Ne7 Kd7 Rf1 Qh1 Rg8 h8Q Be3 h7 Rg1 Nh6 Nf5 Qh2 Bc2 Rf4 Rc1 Bh4+ Bb6 Qa1 Be4 h8B Bd3 B8f6 Be3 Qe5 Bc2 Qe4 Bb1 Qeh1 Bd3 Qe1 d1B Qf1 Bh5 Qd1 Bgf2 Rhf3 Bg3 Ra8 Rb8 f8Q Bb1 Qh8 Re8 Qgh7 Bf7 Rc8 Rg8 Rc3 Ra8 Qg6 Nd6 Qgg7 Bh7 Qg6 Nf5 Rd3 Bc8+
1BB3R1/1b2B3/1pNQ1nB1/1B1p2qb/1PrK4/1b2n3/Nn1QQ1R1/k4n1b w - - 0 1 legal: proof: b4 a5 e4 c5 h4 f5 exf5 g5 d4 cxd4 a3 gxh4 b5 e6 b6 Ra7 bxa7 Bb4+ axb4 Kf8 Qf3 Ke7 Qd1 Ke8 Ke2 Kf7 Kd3 Kf6 a8Q Ke5 c4 d5 g4 h5 f6 h3 f3 b6 g5 a4 g6 h4 c5 h2 g7 a3 c6 h3 f7 a2 f8B Bb7 c7 Nc6 c8B Rh4 Qda4 Na5 Qb5 Nb3 Na3 Nd2 Ne2 Qg5 Be7 Nf6 Rg1 h1B g8B h2 Nc2 Re4 Rb1 a1N Rb2 Bg2 Qa7 h1B Nc3 Bh3 Qa3 Bg4 Qa2 Bh5 Bh7 Rh4 Be2 Nf1 Bg6 Re4 Be3 Rf4 Bf2 Rh4 Bg3+ Rf4 Na3 Nc2 Qe8 Nce3 Nab5 Bc6 Bh2 Bb7 Rg3 Rg4 Na7 Re4 Bd1 Rf4 Rbg2 Rg4 Ba4 Rh4 Ke2 d3+ Kf2 Kd4 f4 e5 f5 d2 Nc6+ Kd3 Bb5+ Rc4 Qb2 d1B Na2 e4 Rg4 Nh7 f6 Bb3 f7 Nf6 Qd4+ Kc2 f8Q Kb1 Qd2 Ka1 Bb8 Nf5 Ke2 e3 Kd3 e2 Qh6 N5e3 Qhf8 Rc2 Kd4 e1N R4g3 Nd3 Qh6 Bf3 Qh2 Be2 Qd7 Nb2 Qd6 Rc1 Qh5 Bed1 Qhe2 Rc3 Rh3 Rc2 Rh8 Rc3 Rg8 Rc2 Qed3 Bh5 Q3e2 Rc4+
n2nQN2/5NRp/1nR1n3/5nK1/4R2B/pr1n2b1/RP1QbR2/1kN3bB w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 Na3 a5 Nb1 Qg5 h3 Qf5 gxf5 g5 h4 g4 Qd2 Ra6 Qd3 Rg6 Qd1 Rg5 hxg5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 Kf7 c4 d5 e4 g3 f6 Kg6 c5 d3 f7 f2 e5 Kf5 c6 Ke4 c7 f3 g6 d4 b6 a4 g7 g2 e6 a3 b7 Na6 b8Q Ne7 g8R Nc5 Qc2 Ba6 c8N Nc6 e7 Ne6 e8R Nd8 Qb6 Bd6 f8R Bg3 Ne2 g1B Bg2 f1N+ Kd1 Ne3+ Kd2 Nf5 Ra2 Bb5 Rg7 Bc4 Ne7 Ba6 Bh3 f2 Ng6 Bb5 Qb8 f1N+ Kd1 Bc4 Bg5 N1e3+ Kd2 Nd5 Bh4 Nc7 Nc1 Na8 Rf6 Rf8 Rh2 Rf7 Qc3 Rb7 Rf2 Rb3 Nf8 Ba6 Rf3 Bb5 Bg2 Bc4 Bh1 Ba6 Kd1 d2 Qcb4 Bb5 Rf2+ Ke3 Nc3 Be2+ Kc2 d1N Nb5 Nc3 Nd6 Nd5 Nf7 Ndb6 Qc8 Ba6 Kd1 Be2+ Ke1 d3 Qd2+ Kd4 Qb8 Bg4 Kf1 Be2+ Kg2 Kc4 Kh3 Kd4 Qa5 d2 Rh6 d1N Qd2+ Bd3 Kg4 Kc4 Rg2 Nf2+ Kh5 Bf1 Rhg6 Nd3 Rf2 Nec7 Re1 Be2+ Kg5 Kd4 Rc6 Nce6+ Kf6 Nb7 Qe8 Nbd8 Qa5 Ke3 Qd5 Kd2 Qd6 Nc5 Kg5 Kc2 Qf4 Kb1 Qd2 Bh5 Re7 Be2 Re4 Nce6+
Q3bKQ1/N3N1Rr/1bNnn2q/R1p1B1pQ/r5B1/1p6/1NPnN3/1k1r4 w - - 0 1 legal: proof: b4 a5 g4 f5 e4 h5 exf5 hxg4 d4 e5 dxe5 b6 a4 b5 axb5 axb4 Kd2 Ke7 Kd3 c5 Ke4 g5 Kd5 g3 f4 d6 h4 b3 e6 Kf6 e7 g2 e8N+ Kf7 h5 Ra7 b6 Ra3 f6 Bg4 b7 Bh3 f5 Rh6 Nc3 Qd7 Nb5 Ra2 Bf4 Bg4 Na7 Ra4 Be5 Na6 b8N Rh7 h6 Be7 Nbc6 Bd8 Be2 Bh5 Bg4 Bb6 Ne2 g1N Rh2 Nf3 Rh1 Rf4 Ra5 Ra4 Rh3 Nd2 Qh1 Rh8 h7 Nh6 Rf3 Bg6 Qh5 Qe7 Re3 Qf8 Re4 Rg8 h8Q Rg7 Rb4 Rh7 Rbb5 Bd8 Rb7+ Bc7 Ne7 Bb6 Kc6 d5 Kd7 d4 Nec6 d3 Rc7 Qg8 Rb7 Nc7 Nd6+ Kf8+ f7 Ne6 Qf6 Qg7 Nc4 Qh8 Nb2 Qg7 Bb8 Qh8 Qd8+ Kg7 f8N Be8+ Ke7 Nf7 Ng6 Nd6 Rd7 N2e4 Bc7 d2 Qa8 d1R Bb8 Nd2 f6+ Kg8+ f7+ Kg7 Bc7 Nd4 Kd8 Kf6 Nge7 Qf8 Nb8 Qh6 f8Q+ Ke5 Nbc6+ Ke4 Qg8 Ke3 Ng6 Nf1 Rg7 Kd2 Ke7 Ne6 Bb8 Ne4 Be5 Nd6 Ng3 Kc1 Ne2+ Kb1 Ned4 Nc7 Ne2 Nd2 Kf8 Ka1 Nge7 Ka2 Qh2 Kb1 Qh5 Ne6+
3qB1Bb/R2Bb1NN/1n6/r3Q2p/RQ2p1p1/R2B2rk/2q1P1nB/6Kb w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 f5 h4 g5 h5 b5 axb5 Kf7 f4 Qb6 fxg5 Qg6 hxg6+ Ke8 Be3 fxg4 Bd2 Ba6 Bc1 Bc8 Kf2 h5 b4 a5 c4 d5 c5 Kd7 b6 Ke6 b7 Kf5 g7 e5 b5 d3 c6 d4 b6 d2 c7 d3 g6 a4 Nf3 a3 Ng5 a2 Qe1 d1Q Rh3 d2 Ne6 Nh6 g8B Ra7 g7 Nf7 Ra3 Ra8 Bh7+ Kf6 g8B Bd6 Bg2 Qc2 Kg1 d1Q Nd2 Ng5 Nf3 Be7 Bf4 Qd8 Qb4 Ra5 Bh2 Nd7 b8Q Bb7 Ng7 Ne6 c8B Nf4 Bd3 Bd5 b7 Nb6 Bh1 Ng2 Ng5 Be4 Nh7+ Kg6 Bgc4 Rf8 Bd7 Rf3 Bg8 Rg3 Qc7 Kh6 b8R Bf3 Rb7 Bd5 Rb1 a1B Ra7 Bb2 Rba1 Bc3 Nf6 Kg5 Nh7+ Kh4 Ra4 Kh3 R1a3 Bf3 Be8 Nf4+ Bg2+ Kh4 Ne6 Bb2 Kh1 Bb7 Bgc6 Kh3 Qb8 Re3 Kg1 Rg3+ Kf2 Ba1 Bcd7 Bh1 Kf1 Ng2 Kg1 e4 Q8d6 Bh8 Ng7 Qdc8 Qe5 Qd8
4N1QR/1p2R2r/RPp1BnRq/4Nnqn/1QR1B3/p4bk1/Q5r1/K6b w - - 0 1 legal: proof: e4 f5 exf5 d5 f4 g5 c4 Na6 cxd5 Nb4 f6 Nxa2 g4 Bh6 h4 Qd7 f5 Kf7 b3 Qb5 Bb2 Bd7 Be5 Bc8 Bf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Qd7 Nf3 Qd6 Ng1 Qd8 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb2 a5 f7 e5 f8R f3 b4 e4 g7 e3 g6 f2 b5 c6 f6 h4 f7 h3 b6 a4 Nf3 e2 Re8 e1Q f8Q+ Qde7 Ne5 h2 Bg2 f1B Qe2 Be6 Nc3 Bf5 Be4 Nf6 g8B Be6 g7 Rb8 Rg1 h1N Rg6 Bf5 Be6 Bg2 g8Q Rh7 Qc4 Nc1 Qa2 Ne2 Rc1 Ra8 Ka1 Ra6 Ra8 Ra5 Ra6 Qd2 Rc2 Bg4 Rc1 Ne8 Qf4 Qg5 Nb5+ Ke7 Rc2 a3 Rc4 Nf6 Nd6 Nhg3 Ne8 B4f3 Qg4 Ngh5 d6+ Kd8 d7 Ke7 d8R Bh1 d5 Nd4 Rc8 Nf5 Qh4 Rb5 Qe1 Rb2 Rc7+ Nd7 Qeb1 Qde3 Qe1 Rg2 Qc3 Qh6 Qe1 Qeg5 d6+ Kd8 Qc3 Ndf6 d7 Ke7 d8R+ Nd7 Ng7 Kd6 Rda8 Ndf6 Re7 Qf4 Qf7 Qg4 Rh8 Qgg5 Qg8 Qf4 Nd7 Qfg5 Nc5 Re2 Qb4 Ke5 Nd7+ Kf4 Ne5 Kg3 Ne8 Rg2
1NQ1R3/2N1N3/4q1RQ/2pr4/p2bQKn1/N1PB1B1n/1n1n1rpN/2b3k1 w - - 0 1 legal: proof: e4 e5 g4 b5 a4 Qe7 axb5 Qd8 d4 f5 dxe5 fxe4 f4 h6 f5 Bb7 Bg5 hxg5 f6 Bd5 Ra5 Be6 Ra1 Bf5 gxf5 Rh7 Na3 Rh3 Nb1 Rh8 Kf2 Kf7 Ke3 d5 h4 c5 b4 a5 h5 d4+ Ke2 a4 h6 d3+ Ke3 d2 h7 g4 c3 g5 b6 g3 b7 g4 b5 g2 b6 g3 Qe1 d1N+ Kf4 e3 Bd3 e2 Rh6 Qe7 Nf3 g1B Rg6 g2 Na3 Nb2 Nh2 Nd7 b8Q Bd4 b7 Nh6 Qc8 Ng4 b8N Nb6 Qb1 Rg8 h8Q e1N Qh6 N6c4 Qc2 Nf3 Re1 Qd6 Qe2 Qd5 Qe4 Ncd2 Re3 Bg7 Re1 Rd8 e6+ Kf8 e7+ Kf7 Re2 Qe6 Re3 Rd5 e8B+ Kf8 f7 Ke7 f8N Kd6 f6 Ng5 f7 Ra6 Qh8 Bh6 Bc6 Ra8 Nh7 Ra7 f8N Rf7+ Nf6 Rh7 Kg3 Rf7 Ng8 Rf2 Re1 Nh3 Re2 Bhe3 Qh6 Ng5 Qf3 Ke5 Ne7 Qf7 Ne6 Qg8 Nc7 Qe6 Be4 Bf4+ Kh4 Bfe3 Re1 Bf4 Bd3+ Bfe3 Qe2 Kf4 Kh5 Kg3 Ba8 Bf4 Qe4 Rf1 Bb7 Kf2 Kh4 Kg1 Re2 Bfe3 Kg3 Ndf3 Ba8 Bc1 Re3 Rf2 Kf4 Rd7 Qf5 Nd2+ Bf3 Rd5 Re5 Nf7 Qe4 Ng5 Ng8 Qb6 Re8 Qe6 Ne7 Nh3+
1B1Q1r1B/1Q3q1Q/1Kp5/bb1B4/1p1N1Pn1/Bb1nk1N1/B2rp1bR/3R4 w - - 0 1 illegal: No possible last move
Q4R2/bN2k3/pB1rp3/2RPR2q/Rb1K1N2/5p1R/BqqQ4/B1nr2r1 w - - 0 1 legal: proof: f4 d5 h4 b5 a4 g5 axb5 gxh4 e4 e6 d4 Bh6 c4 dxc4 f5 Bf8 d5 Ne7 f6 Nd7 fxe7 Nf6 d6 Kd7 Qg4 Bb7 Qd1 Bd5 exd5 Ng8 Ke2 c5 Ke3 f5 e8R h5 g4 h3 b4 c3 g5 a6 g6 h2 g7 c2 b6 h4 b7 c4 b8Q f4+ Kd4 h3 b5 f3 b6 c3 b7 Rh7 Ra4 Ne7 g8R Qc7 Qd2 Ng6 Na3 Rg7 Nc4 Nf4 Rc8 Nd3 Bb2 c1Q Ne2 c2 Na5 Rg1 Rg5 Qa1 Rf5 c1B Nf4 Qc2 Re5 Qa3 Ba1 Qab2+ Rc3 Be7 Qg8 Rd8 b8R Bf8 Nb7 Ke8 d7+ Ke7 Qdg2 Bd2 Qh8 Nc1 Bc4 Rd1 Ba2 Be3+ Kc4 Ba7 Qd2 Kf7 Rc8 Bb4 Rc5 Ke7 Kd4 Rc8 Qg8 Rc6 Qa8 Rd6 d8B+ Kd7 Rg1 h1R Rg3 h2 Bb6 Rhg1 Rh3 h1Q Rc8 Ke7 Rf8 Qbb1 Rc5 Qh2 Rg3 Qh5 Rh3 Qbb2+
3nnk2/1r4Np/1K1N1NQ1/1RN2pq1/2rB1B2/pR1q1Q2/bRPN1q2/1r6 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 hxg5 b5 axb5 e6 g4 Bd6 f4 Na6 g6 Bc7 g5 Bd6 Bh3 Nb8 Bf5 Be5 fxe5 exf5 Kd2 a5 Kd3 d5 e4 a4 b4 f4 e6 f5 e7 a3 g7 f3 g6 f2 e5 f1R b6 Rf2 b5 Rf4 b7 Rf1 b6 Qc7 Ra2 Ra5 Ne2 Qd8 Be3 Nf6 g8N Rf2 g7 Bd7 Ng3 Rf4 Rh3 Be6 Qf3 Na6 b8B Rh4 b7 Nc7 Rb2 Rb5 Nd2 Kf7 Ba7 Nfe8 b8R Rb7 Nf6 Rg4 Bf4 Rg8 Ke2 d3+ Ke3 Rf8 Nge4 d4+ Kf2 Bb3 Nc5 Ba2 Rg3 Ne6 Bb6 N8c7 e8N Ke7 Nd6 Ne8 g8Q Rh4 Ndb3 d2 Qg6 d1Q Nd2 d3 Ke3 Qf1 Rh3 Rf7 Ba7 Rb3 Rb5 Kf8 Bb6 Qe7 Rg3 Nd8 Kd4 Rg7 e6 Qf2+ Kc4 Rc3+ Kb4 Rc4+ Ka5 Rh1 Ba7 Rb1 Kb6 Bb3 Nh5 Rf7 Ng7 Ba2 Rh3 Qg5 e7+ Kg8 Nb3 d2 Rg3 d1Q Nd2 Nc7 e8N Kf8 Nf6 Ne8 Qe2 Qdg1 Rgb3 Qgf1 Qf3 Qd3 Bb8 Qh2 Nc8 Rc1 Bbe5 Qf2 Nd6 Rb1 Bd4 Rb7+
1b1Q1rBB/3P4/1p1r1B1b/1K3R1p/qbp4R/8/1qkNrB1B/Q1NN3n w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 a5 b4 axb4 c4 g5 f3 Be6 f6 g4 f4 Nc6 f5 Bd5 cxd5 Ne5 Rh3 Nf7 Rh1 Ng5 hxg5 Qd6 Rh2 Qd7 Rh1 Qd8 Ke2 Kf7 d4 e5 a4 h5 d6 c5 a5 e3 Kd3 b3 Kc4 b2 a6 e4 a7 b6 d5 e2 g6+ Ke8 g7 Kf7 d7 e1B d6 g3 Be3 g2 Rh4 Be7 Nd2 b1R Ra5 Bg3 Bf2 e3 Ne2 g1Q Nc1 Nh6 g8N Bf8 Ne7 e2 Nd5 e1B Ne3 Qe8 d8B Ng4 d7 Qe5 Be7 Re8 a8Q Bh6 Qd8 Qb2 Qa4 Qh2 Nd1 Bb8 Qa1 Rhf8 Bd6 Qg2 Bh2 Qc6 Bd3 Re7 Bc2 Re2 Bb3 Kg8 f7+ Kg7 f6+ Kg6 Rb5 Kf5 Ra5 Qe4+ Kb5 Qf4 Nc4 Bb4 Nd2 Ne3 Bc4 Nf1 Bb3 Ng3 Ba2 Rfe8 f8B Nh1 Be7 Rf8 f7 Qe4 Bd5 c4 Bf6 Qec2 Kc6 Qa4+ Rb5 Rg8 f8B Rh8 B8g7 Rf8 Na2 Rc1 Bh8 Rc3 Nc1 Rd3 Nf3 Bbf4 Bg8+ Ke4 Na2 Rd5 Nd2+ Kd3 Nc1+ Kc2 Nc3 Bb8 Nd1 Qaa3 Rc5 Qab3 Kb5 Rd6 Rf5 Qa4+
Q2q4/1p4Br/rnKbRBN1/1r1pN1RB/1kPBpR2/6nB/Q7/5rr1 w - - 0 1 illegal: Other
b1k2qR1/6bB/4n2q/pQ2QN1q/P2pNp1R/BQ2Qr2/Q3B1nK/3q4 w - - 0 1 legal: proof: g4 a5 b4 b5 h4 g5 hxg5 e5 d4 c5 f4 exf4 g6 Ra6 g5 Re6 bxc5 Re5 c4 bxc4 dxe5 Ba6 Qd3 Bb7 Qd1 Bc8 Kf2 h5 Kg2 d5 e4 Kd7 a4 f5 g7 c3 g6 c2 Be2 h4 Nd2 Ne7 g8Q d4 g7 Qb6 e6+ Kc7 e5 Ng6 e7 Na6 e8Q Bb7+ c6 Nc5 e6 Ba8 Ba3 c1Q e7 f3+ Kh3 f2 Ngf3 f4 Qa2 Nd3 g8B Qcc5 Qdb3 Ne1 Ne4 Qbb4 Rh2 f1Q+ Rg2 Qb8 Qe3 Rh5 Bh7 Bh6 Qeg8 Nf8 Qgb3 Ne6 e8Q Qg5 Qh8 Qf8 Qe5+ Kd8 Qeb5 Qg1 Rg4 Ng2 Rf1 Qe5 Rg8 Bg7 Re1 Qg5 Qe5 Qh6 c7+ Kd7 Rb1 Qc1 Ra1 Qc2 Rh1 Qb1 Nh2 Rg5 Nf1 Qd1 Nfg3 Rh5 Rh2 Rg5 Nf5 Rh5 Kg4 h3 Rh1 h2 Kf3 Rh3+ Kf2 Kc6 c8Q+ Nc7 Qa6+ Kd7 Qab5+ Kc8 Rf1 h1Q Re1 Qh2 Rh1 Qd3 Kf1 Ne6 Kf2 Rg3 Kf1 Q2h3 Kg1 Q3h5 Rh4 Qd1+ Kh2 Rf3
4bnk1/1Nqb2p1/4q1R1/4QB2/QrQ3Qp/p1br4/RP1BbNB1/3K2Q1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 f5 a4 e5 axb5 e4 h4 Qd6 f3 Qh2 Bg2 Nc6 Bf1 Nd4 h5 f4 h6 Nf5 gxf5 exf3 Ra4 Nxh6 Ra1 Ng8 d4 Kf7 e4 a5 d6 c5 d5 h5 b6 h4 e5 a4 e6+ Ke8 d7+ Ke7 f6+ Kd6 d8Q+ Bd7 b7 c4 b8Q+ Kc5 f7 c3 d6 c2 e7 a3 e8B Rh6 Bd2 Kd5 Qdc7 Ke6 Nh3 c1Q Ra2 Ne7 Nf2 Qc4 Bg2 Ng6 Rg1 Ra4 Nc3 Rb4 Qa4 Kf6 Qcc6 Qe6+ Kd1 Be7 Qba7 Nf8 Nb5 Rh5 Qac7 Rd5 Qc4 Rd3 Q7c5 Kg6 Qg5+ Kh7 Qe5 Bc8 d7 Bf6 d8Q Bd7 Qdc7 Qg3 Qe2 Bc3 Qce5 Kh8 Nd6 Qh2 Nh3 f2 Qg4 f1B Nf2 f3 Nb7 Qf4 Qe1 Qc7 Qe5 Bc8 Bc6 Bd7 Be4 Be8 Bf5 Bd7 Bh1 Bh3 Rg3 Bb5 Bg2 Be8 Qge4 Bg4 Qe1 Bh3 Rg6 Kh7 Qg1 Kh8 Nh1 f2 Qg4 f1B Nf2 Nd7 f8Q+ Kh7 Qff6 Nf8 Qc4 Kg8 Qg5 Qd5 Bfe4 Bhd7 Bf5 Qe6 Qgg4 Be2+
3n4/4p2k/B1R2QNq/1n2nP2/p2K4/1B4R1/1b1NQpb1/1RQnqRrR w - - 0 1 legal: proof: f4 f5 a4 b5 axb5 d5 e4 fxe4 c4 g5 cxd5 Bh6 b3 Qd7 f5 Qd6 Bb2 Qd8 Be5 Bf8 g4 a5 h4 Ba6 h5 Bc8 Bf4 gxf4 g5 Ra7 Bh3 Ra6 Bf1 Rg6 hxg6 Qd6 Rh3 Qd7 Rh1 Qd8 Kf2 h5 d4 c5 b4 h4 d6 a4 d5 h3 g7 Kf7 d7 c4 b6 f3 Ke3 f2 b5 h2 b7 c3 g6+ Kf6 b6 c2 d6 c1N Nh3 Nh6 g8R Nf7 g7 Ne2 Qc1 Nc3 Nd2 Ne5 Ba6 Nd1+ Kd4 e3 Nf4 e2 Ng6 e1Q Rb1 Qc7 d8R Qc6 d7 Kf7 Rf1 h1N Re8 Rh7 d8Q Ng3 Qd6 Ne4 Rh1 Be6 Rc8 Bd5 Rc7 Nec3 Qf6+ Ke8 Rf1 Bg2 Ra1 Qe6 Rc6 Rh1 Rb1 Rg1 Rh8 Qb3 g8B Bg7 Rh1 Qf7 Rb3 Qf8 Ra3 Bh8 Bb3 Qh6 Qh4 Nbd7 Qf6 Nf7 b8Q+ Nd8 b7 Ne5 Qbd6 Bg7 b8R Bh8 Qfe6 Bg7 Qc4 Bf6 Qe2 Bg7 Rc4 Kf7 Qf6+ Kg8 Rc6+ Kh7 Ba2 Ne4 Rg3 Nec3 Bb3 Bh3 Bf7 Nd7 Rb1 Nd5 Qfe5 Bg2 Kd3 Bf6 Qd6 Bb2 Qf6 N5c3 Bb3 Ne5+ Kd4 Nb5+
K1r1N3/Npq1bk2/1N2b1n1/B5PN/7p/2Qb1p2/1NRrBqb1/1B2R2Q w - - 0 1 illegal: No possible last move, all moves rejected
kb6/1p4pr/PBQp2r1/4q1Q1/4R1Q1/qB1nNB1R/K2bB3/1r2rBN1 w - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 h5 dxc5 hxg4 e5 d6 e6 Bd7 Bf4 Qc8 Bd2 Kd8 exd7 Kc7 Bf4 Kc6 Bc1 Qd8 f4 e5 Bb2 e4 Bh3 Kc7 Bg2 Nc6 Bf1 Ne5 fxe5 Qe8 Nc3 Kd8 Bc1 Ke7 Nb1 Qd8 Kd2 f5 c4 g3 Kc2 b3+ Kb2 g2 h4 e3 a4 f4 h5 f3 a5 e2 e6 e1Q c6 f2 a6 Qc8 c7 Nh6 c5 Qe8 c8B Kd8 c6 Kc7 d8Q+ Kb8 e7 Qa5 c7+ Ka7 Rh3 Qc5 Ra4 Qf5 Qg4 Qeb5 e8B Qfd3 Bf7 Qe5+ Nc3 Be7 Re4 Bg5 Bfe6 Nf7 h6 Rb8 h7 Bd2 Qdg5 Ka8 Be2 Rf8 h8Q f1R Ka1 b2+ Ka2 b1R Bb3 Qdg3 Nd5 Re1 Ne3 Re8 Qg8 Re6 Qe8 Rg6 Qc6 Qf3 Bf5 Rh8 c8B Rh7 Bb2 Qfg3 Bd4 Qf3 Bb6 Qfg3 Nf3 g1B Bfe6 Bf2 Ng1 Qf3 B6c4 Qfg3 Nf5 Bc5 Ne3 Qf3 Bc7 Ba7 Bb6 Bb8 Bb5 Nd8 Bf1 Ne6 Bbe2 Nc5 Bce6 Qfg3 Bbd1 Nd3 Beb3 Qc5 Bf3 Qge5 Bde2 Qa3+
r1R5/Qpb1KBRR/N2R1p1B/4Nbb1/1PBRQ1p1/6kn/4r3/1nrr4 w - - 0 1 legal: proof: b4 d5 g4 e5 c4 h5 gxh5 a5 f4 exf4 cxd5 Qe7 Ba3 Qe3 Bc1 Qb3 axb3 a4 Ba3 axb3 Bb2 Nd7 Bc1 Nb8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 g5 e4+ f3 h4 c5 d6 c4 d7 f6+ Ke6 c3 h6 b2 e5 c2 h7 Nh6 d5 Nf7 d6 Rg8 h8Q Ra5 h5 Na6 h6 Nb8 h7 Kg3 Qd4 f2 Nf3 Bg7 Ke7 Nd8 e6 Bh6 Qe4 Na6 Nc3 b1R Bc4 f1R Nb5 Nc7 Ne5 Na8 Nc7 Nf7 d8R Nb6 d7 Ra8 Na6 Rd1 Qg7 Rf8 h8R Na4 Rh4 Rg8 Rh7 Nc3 Rf8 Rb2 d8R Nb1 Rd6 Rh8 Bd2 c1B Rf4 Bd7 Rc8 Rf8 Be3 Re2 Ra3 Bb2 Rad3 Rc1 R3d4 Rd8 Qg8 Bc3 Rg7 Bd2 Rh4 g4 Rh5 Bf4 Rhh7 Ng5 Qe8 Bb5 Q8c6 Ba4 Qc5 Nh3 Qb6 Bg5 Qa7 Bc3 Bd2 Bc2 Be3 Bh4 Bh6 Bg5 Kf7 Bcd2 e7 Bdf4 e8B Bd3 Ke7 Bc2 Qd5 Bg6 Qe4 Bf5 Re6 Rd6 Bf7 Rd8 Nf3 Bc7 Ne5 Rd5 Rb6 Rc5 Rbd6 Rd1 Bcd5 Rc3 Bc4 Rcc1
2q1N2N/1k2n3/p2pN3/1qQRB2B/P1nN1pn1/Q3q2r/R1K1Q3/1bN2q2 w - - 0 1 legal: proof: e4 b5 f4 c5 d4 e5 b4 cxb4 Bd2 exd4 e5 a6 e6 Ra7 Be3 Rc7 Bc1 Rc5 g3 Be7 g4 Re5+ fxe5 f5 Nf3 Bb7 Ng1 Bf6 h3 Bf3 g5 Bg4 gxf6 g5 Na3 Bf3 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Qa5 Ba3 Qb6 Bc1 Qd8 Kd2 h5 a4 g2 c4 d6 g5 d3 f7+ Ke7 f8N f4 c5 b3 g6 b2 g7 h4 c6 h3 c7 h2 c8Q b4 Qe2 b3 Ra2 Nf6 g8Q Rh5 Qc5 Nbd7 Qg3 Nh7 Nc3 b1Q Nf3 g1Q Nd4 Ndf6 Bb2 Qc8 Ng6+ Kd8 Nh8 Rh3 e7+ Kd7 e8N Nd5 Bg2 Nhf6 Nc7 Ne7 Bf3 Ng4 Nce6 Qf2 Rf1 h1Q Rd1 Qhf1 Ba1 Nh2 Bh5 Ng4 Nf8+ Kd8 e6 Q2g1 Qge3 Qg3 Qa3 Kc7 Qe5 Kb7 Qec5 Nc6 e7 Qgg1 e8N Ne7 Qe1 Qgf2+ Nce2 Qe3+ Kc3 d2+ Kc4 Qef3 Nfe6 Qe3 Kb4 Qbd3 Nc1 Qde2 Bc3 b2 Kb3 Qb5+ Kc2 Rh4 Qf2 Rh3 Re1 d1N Qe2 Ndf2 Rd1 Nd3 Nf3 Nde5 Rd5 Nc4 Be5 Rh4 Nfd4 Rh2 Bg7 Rh3 Be5 b1B#
1R1KR2n/2q1Bp1q/5N2/nQ1rpNq1/2Rn1P2/2BQ1R2/bn2BR1p/2k5 w - - 0 1 illegal: No possible last move
3K1b2/1QNQp2b/1BnbBR1b/q5Rp/1k3B2/1p2N2B/Q2bP1n1/1n5B w - - 0 1 legal: proof: c4 h5 b4 b5 d4 d5 h4 c5 g4 g5 Qa4 f5 Qb3 a5 Qa4 axb4 Qd1 Ra6 Nc3 Rc6 cxd5 c4 Nb1 Rc5 dxc5 Rh7 Bg2 Rg7 Bh3 fxg4 Bf1 g3 Rh2 g4 Rh1 Rg5 hxg5 Bd7 Ba3 Bf5 Bc1 Bc8 Kd2 Kd7 Ke3 b3 Ke4 c3 Kf5 b2 a4 c2 f4 g2 d6 Kc6+ d7 g3 Ke6 b4 f5 b3 a5 Kb5 g6 Qc7 f6 Bb7 d8B Na6 g7 Be4 c6 Bd3 f7 Nh6 g8B Nb8 a6 Kb4 a7 Qb7 a8B Kb5 c7 Bh7 c8Q Kb4 Nf3 g1B Ra5 g2 Rg5 Na6 Bb6 Ka4 Nd4 Qb8 Kd7 Be3 Na3 g1B Nf5 b1N Bh3 Ng4 Qb7 Qf4 Kd8 Qf1 Nb5 Nb4 Qdd7 Bd2 Ne3 Qf5 Nc7+ Qb5 Rh2 Bf2 Rg2 Bg3 Rf2 Bd6 Rf6 Nc6+ Ke8 Bh6 f8Q Qa5 Be6 Kb4 Qg8 Bf8 Qg6 Qa2 Qd3 Qa5 Qda6 Nh2 Qaa7 Nf3 Qaa6 Ne1 Qaa7 Nb8 Kd8 Ng2 Qaa6 Qf5 Qa2 Qa5 Bb2 c1B Be5 Bb2 Bf4 Bd4 Rfg6 Bdg7 Rf6 Bh6 Qbc8 Ne1 Bh1 Ng2 Qb7 Nc6+
b4b2/Rp3B1Q/pbQ3rN/2N1R1N1/1K1pBN1b/1Pb5/1q4rr/2B1kN2 w - - 0 1 illegal: Other
3nQR2/nkp2n2/bPNqb1q1/1B1QQQ1Q/n2bK1N1/4R3/1p2p3/4B1B1 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 cxd5 fxe4 a4 g5 Qb3 gxh4 Ra3 a5 Ra1 b4 Qd1 Ra7 b3 h5 Bb2 Rb7 Ba3 Rb5 axb5 a4 Bb2 a3 Bc1 Rh6 Ke2 Ra6 Ke1 Ra4 bxa4 Qd6 Qg4 Qd7 Qd1 Qd8 Ke2 Kd7 Ke3 e5 g4 a2 f4 h3 d4 b3 d6 h4 g5 h2 d5 h3 g6 b2 f5 Nf6 a5 Ne8 g7 Bb7 g8Q Kc8 f6 Bc6 b6 Be7 d7+ Kb7 d6 Ka8 f7 Bb5 f8Q Bf6 a6 Ng7 a7 Kb7 Nd2 Ba6 Nc4 Ne6 Qg5 Nc6 Qdh5 Qe8 d8Q Qg6 Qde7 Ned8 d7 Bh8 Rb1 a1N Qee8 Nb3 Nf3 Nc5 Qff5 Na4 Nd4 Bf6 Rg1 h1Q Rg3 h2 Bd2 Qg2 Be1 h1B Bf2 Bg7 Bg1 Qh2 Be2 Bg2 Rf1 Bh3 Rgf3 Qg3 Re1 Qd6 Qgf6 Qg6 Rf2 Nf7 d8B Bh8 Be7 Ncd8 Nc6 Bg4 Qg7 Bh3 Bh4 Bg4 Qfg5 Be6 Q7f6 Bg7 Qff5 Bh8 Rf3 Bf6 Ref1 Bh8 Be1 Bf6 Kf2 e3+ Kg3 e4+ N4e5 Bh8 Bb5 e2 Kf4 e3 Ke4 Bf6 Ng4 Bd4 Bb4 e1N Bd2 e2 Re3 Nf3 Be1 N3e5 Qf6 Nd7 Qe5 Nb8 a8Q+ Kc8 Bh2 Bb7 Qa5 Ba6 Bg1 Kb7 Qd2 Bc3 Qdd5 Bd4 Nb4+ Nbc6 Rf2 Kb8 Rff3 Na7 Nc6+ Kc8 Rf1 Nh6 Rf2 Qg7 Qfg6 Kb7 Rf8 Nhf7 Qgf5 Qg6
kq1N1b2/1R1n3N/1n3BRK/1R3Q1Q/p1B1p2p/B1p5/Pr1rB3/n1Bb4 w - - 0 1 legal: proof: e4 d5 b4 f5 exf5 g5 h4 c5 hxg5 b6 bxc5 bxc5 c4 dxc4 Ke2 Kd7 Kf3 Kc7 Kf4 Kb7 g4 a5 d4 h5 f6 a4 g6 e5+ Kg5 h4 f4 c3 f5 e4 d5 c2 d6 c4 g7 c3 d7 Na6 Nd2 Qa5 d8B Qb4 f7 Be7+ f6 Qd6 f8B Qh2 Be2 Nc7 Nh3 Ra6 Nc4 Rc6 Na5+ Kb8 Nb7 Ka7 Rb1 Rh6 Rb5 Bb4 f7 Nf6 g8R Nh5 Rg6 Nd5 Bf6 Be7 Nd8 Nb6 Qd5 Ba3 Bc5 Be6 f8Q Rd6 Qf5 Bc4 Qf7+ Ka8 Bb4 Rh8 Qh7 Rf8 Kh6 Bb3 Ng5 Rd2 Qh8 Re8 Nh7 Qb8 g5 Re7 Rg1 Rb7 Bf8 Bd6 Rg7 Bc5 g6 Bd6 Re7 Bc5 g7 Bd6 Be5 Nf6 g8B Nfd7 Bgc4 Ba3 Bf6 Bc5 Ba3 c1N Rg6 Bd1 Reg7 Nb3 Bc1 Na1 Bd6 Bg1 Bda3 Bc5 Qe8 Bf8 Qee5 Rb2 Qh5 Rc7 Qef5 Rc5 Qff3 Rd5 Qff5 Bb4 Rf7 Rdd2 Re7 Ne5 Rc7 Ned7 Rb7 Bf8+
1b1NQ1n1/q2B1Qr1/N2b1R1P/n2Bp1p1/2n1N2k/1p2K1R1/2Np4/2N2B1r w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 h6 b4 b6 f4 Na6 f6 Nb8 f5 axb4 e4 c5 dxc5 Bb7 Bg5 hxg5 e5 Qc8 Bh3 Kd8 Bg2 Bd5 Bf1 Bf7 e6 Kc7 exf7 Qd8 Qd4 Kb7 Qd1 Kc6 Kf2 d5 h4 Kd7 c4 e5 a4 d4 c6+ Kd6 c5+ Kd5 a5 Ke4 a6 Kf4 h5 d3 a7 g6 c7 g4 c8B Kg5 c6 b5 c7 b3 Qf3 d2 Ke3 b4 Ne2 b2 Rg1 b3 Ra6 Bh6 f8N Qd6 f7 Nc6 f6 Nce7 Nd7 Qb4 f8Q Qa4 f7 Nc6 Qe8 Bf8 Na3 b1N Nc1 Nc3 Nc2 Rh6 Nb8 Nd5+ Ke2 Bc5 f8N g3 Kd3 g2 Ne6+ Kh4 Qf6+ g5 Nd8 Kg3 Bf5 Qa5 c8N Qc7 Rb6 Na5 Na6 Qe7 Rc6 Nb6 Nd6 Rc8 a8B Qa7 Qfe6 Rc7 Ke4 Rch7 Q6f7 Rg7 Bd7 Ba3 Ke3 Rhh7 Nf5+ Kh3 Rf6 Bd6 Bd5 Bb8 Rh1+ Kg4 Rh3 g1B+ Ke4 Rh6 Rd3 Bc5 Ng3+ Kh4 Rdf3 Bcd6 Ke3 Rh8 Ne4 Rh6 Rg3 Rh8 Bfc4 Rh6 Rf2 Rf6 h6 Rf4 Rf1 Rf2 Bd3 Rh2 Rf6 Rh1 Bf1 Nbc4+
1RQBB3/2B2q2/2pp3Q/Kp1N1B1p/1nn2R1Q/1r3b2/P1b1B1N1/1b3nk1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 b5 c4 g5 c5 gxh4 d4 c6 d5 Ra6 d6 Rb6 cxb6 Bh6 b7 Be3 Nf3 Bb6 Ng1 Bc7 dxc7 Kf7 Qd4 Kf8 Qd1 Ke8 Kd2 Kf7 g4 Kf6 f4 e5 g5+ Kf7 f6 Ke6 g6 Kf5 g7 Ke4 f5 h6 f7 d6 f8Q h3 f6 b3 Kc3 b2 Kb4 h2 f7 Bf5 c8B Nd7 b8B Qf6 Bc7 Nb6 Qa4 Ne7 g8B Nc4 Ne2 Kf3 Bg5 Kf2 Nbc3 b1B Nd5 e4 Nef4 e3 Ng2 Bfc2 Bf5 e2 Qc8 e1N f8Q Nf3 Bf7 Nfd2 Be2 Nf1 Be8 Qf7 Rg1 h5 Qh6 h1B Bf6 Rg8 Bg5 Nb6 Ka5 Rg7 Bf6 Rg3 Qc4 Rb3 Qb4 Ng6 Bfd8 Ne5 Qa4 Nd3 Qh4+ Ng3 Ngf4 Bf3 Ng2 Nb4 Re1 Bd3 Rg1 Bbc2 Rad1 Bde4 Rd4 Bed3 Re1 Bb1 Rf4 Bdc2 Bf1 Kg1 Re5 Qg8 Be2 Nf1 Re6 Qf7 Rf6 Qg8 Rf8 Qf7 Qd7 Nd2 Be7 Qe6 Bf7 Ne4 Rb8 Nd2 Qc8 Nf1 Be8 Qf7 Bed8 Nc4+
7R/1N1QNpqb/B2b1rbp/pN1r2p1/4NBr1/1Q5N/1B2kP2/3R1nK1 w - - 0 1 legal: proof: d4 c5 b4 b5 bxc5 e5 a4 exd4 axb5 Ba6 g4 Bc8 g5 Qc7 g6 Nc6 Bh6 Ne5 Bc1 Ng4 h3 N4f6 h4 h6 h5 Nh7 gxh7 Qe5 Bd2 Qxh5 Bc1 Qh2 e4 Ke7 c4 Ke6 b6 Ke5 c6 g5 b7 d5 b8Q+ Bd6 c7 d3 c5 Kd4 e5 a6 e6 Qh4 c6 Nf6 e7 Rd8 e8N Nh5 Nh3 Bf5 c8N Ng3 c7 Bg6 h8B+ Ke4 Bf4 d4 Be2 Nf1 Ne7 a5 c8N Qg3 Na3 Ra6 Rc1 Qg4 Qb5 Qh4 Qdb3 d2+ Kd1 Qg3 Qd7 Qc3 Nb5 Bh7 Bd3+ Kf3 Nf6 Qa1 Ne4 Bg6 Kc2 d1R Bg7 Re1 Rg1 Re3 Kd1 Bh7 Bc4 d3 Bb2 d2 Rb1 Rc3 Bd3 Rc4 Rh1 Kg2 Ke2 d1B+ Ke1 Kf3 Rg1 Ba3 Ncd6 Bc2 Nb7 Rf6 Rc1 Bb1 Rc2 Rd4 Rc8 Rd5 Ra8 Rc8 Rh1 Rc4 Rh8 Ra4 Nbc3 Bd6 Ba6 Rg6 Nb5+ Bd3+ Bbc1 Qg7 Bb2 Rf6 Nec3 Bdg6 Ne4+ Kg2 Ke2 Ne3 Rb1 Nf1 Rd1 Rff5 Nf6 Nh2 Bfc1 Rg4 Ne4 Rf6 Be3 Nf1 Bf4 Ne3 Ke1 Kf3 Qc4 Nf5 Kf1 Ng3+ Kg1 Nf1+ Kh1 Rh4 Qb3+ Ke2 Kg1 Rg4+
K2qbN2/1p1Q1Rnn/7p/1rRN1pk1/1bP3B1/1R6/QB2B1p1/n4RRb w - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 cxd4 g5 e5 fxe5 Qf6 Nh3 Qe7 Ng1 Qd8 h3 f5 h4 Qf6 Qd2 Ra3 Qd1 Rg3 gxf6 Rg5 Bg2 Rh5 Bf1 g5 Nc3 g4 Nb1 Rg5 hxg5 Be7 Rh3 Bd6 Rh1 Bf8 Kf2 Kf7 c4 Kg6 e4 d5 a4 b3 f7 d3 Ke3 h6 Kd4 g3 e6 d2 e5 b2 e7 Bg7 Kc5 d4 Kb6 d3 Ka7 Be6 e8R Bf6 f8R Bg7 a5 Nd7 a6 Ne7 Ra5 Nc8+ Ka8 Nd6 a7 Ne4 Be2 Bg8 e6 Ndc5 e7 Bc3 Nf3 Nf6 Rf7 Ne6 Nd4 Ng7 Rf1 Nh7 Rc5 Bb4 Nc3 b1N Nd5 Na3 Ne6 Nc2 Bb2 Na1 Qa4 d1B Qd7 d2 Rd8 Ba4 e8B d1Q Bg4 Qb3 Be2 Qf3 Nf8+ Kh5 g6 Bb5 Qc6 Kg5 Qd7 Qd3 Bg4 Nh5 g7 Bc6 Nc7 Bh1 Nd5 N7f6 Be2 Bh7 g8R+ Bg6 Kb8 Qd1 a8Q Nh7 Qa2 Ng7 Ka8 Qd2 Qe6 Bh5 Ba4 Qd3 Bad1 g2 Qd7 Qd4 Re8 Qf6 Bg4 Qd4 Ree1 Qd3 Bde2 Qd2 Re7 Be8 Re3 Qd4 Rb3 Qd1 Ng6 Qd3 Rf8 Qd4 Rf7 Rf8 Re7 Rf6 Rf7 Rb6 Nf8 Rb5 Rg1 Qf6 Ref1 Qd8+
2q1r3/n3Q2B/1k2qp2/R1N1Rp1P/1Nb2Q2/1rpb4/KQp2N1B/Nq4N1 w - - 0 1 legal: proof: f4 d5 a4 h5 c4 dxc4 f5 b5 axb5 e6 g3 exf5 Ra2 h4 Ra3 Na6 Ra1 Nb8 Nh3 g5 Ra3 g4 Ng1 Be7 Ra5 h3 Ra1 Bh4 gxh4 g3 Na3 g2 Qa4 Nd7 Nb1 Ndf6 Qc2 Nh5 Qd1 Ng3 hxg3 Qg5 Ra6 Qf6 Ra1 Qd8 d4 Kd7 Kd2 a5 Kc2 c5 e4 Kc7 b4 h2 Kb2 f6 e5 c3+ Ka2 c2 h5 a4 d5 c4 e6 c3 b6+ Kb7 g4 a3 d6 Qf8 b5 Rb8 g5 Rh7 g6 Bd7 g7 Qe8 e7 Qf7+ Bc4 Qe8 Qd2 Qf7 e8Q Rh6 Qf4 Be6 d7 Qg6 d8N+ Kc8 Nd2 Bd5 Nc6+ Kb7 Nb4 Qf7 Nb3 Qf8 Qe7+ Ka8 b7+ Ka7 Bd2 Rc8 b8N+ Kb6 N8a6 Rb8 Nac5 Rh8 Re1 Bf7 Na1 Qc8 Re5 Be6 Bb3 Bc4 Be1 Bd3 Bg3 Rb7 Bf7 Rb8 Bg6 Rb7 Qf7 Ne7 g8N Nc6 Nh6 Re8 Bh7 Na7 Ng4 Rb8 Nf2 Rb7 Ne2 g1Q Qe7 Qe1 Rg1 h1B Bh2 Bg2 Rh1 Bf1 Ng1 Ka5 b6 Rb8 b7 Kb6 Nf3 Qe4 Rg1 Bfe2 Rd1 Qec6 Ng1 Q6e6+ Ncb3 Bc4 Ra5 Bf1 Rdd5 Bcd3 Nc5 Bfe2 Kb3 a2 Ka3 Bc4 Re5 Bed3 Nba6 Kc6 Nab3 Qd8 Re4 Rc8 b8Q Qdd7 Re5 a1Q+ Kb4 Qa2 Na1 Qb1+ Ka3 Rcd8 Qb3 Rb8 Qa2 Rb2 Nb4+ Kb6 Qb3 Qc8 Qa2 Qd1 Qb1 Rb3+ Ka2 Qc1 Qb2 Qb1+
3R3N/3pbQQP/Q3N1Kn/3p4/4Brp1/Q1BQ1nq1/3r1Bkp/1nq2R2 w - - 0 1 legal: proof: e4 f5 exf5 b5 a4 c6 axb5 Nf6 g4 Ng8 d4 Bb7 d5 cxd5 Ra2 Ba6 Ra1 Bc8 f6 h5 b6 h4 Qf3 Bb7 Qd1 Ba6 h3 Qc7 Ra5 Qh2 Ra1 Bd3 Nd2 Bg6 Nb1 Bh5 gxh5 Qxh3 Qd3 Qg3 Qd1 Qh2 Kd2 Kf7 Ke3 Ke6 b4 Kf5 c4 g5 f4 e5 f7 a5 b7 e4 c5 h3 b5 a4 h6 g4 h7 a3 c6 a2 b6 Ra3+ Bd3 Qb2 c7 h2 c8Q Rc3 Nf3 Qg2 Nh4+ Ke6 f5+ Ke5 f6 Rc5 Bd2 Rb5 Bc3+ Ke6 Kf4 e3 Kg5 e2 Nd2 e1N Ng6 Be7 f8Q Rb3 Rf1 Rb5 Be4 Bd6 f7 Rb2 Qg7 Nc2 f8Q Ba3 Nb3 Nh6 Qd3 Nc6 b8Q N6d4 b7 Qg3 Qbf4 Nf3+ Kh5 Be7 b8B Na3 Ba7 Rc2 Bf2 Rd2 Q4f7+ Kd6 Qb7 Nb1 Nd4 Rg8 Qfa8 Rf8 Nh8 Kc5 Kg6 Kd6 Qgg8 Ke5 Qfg7+ Kf4 Qba6 Na3 Rab1 a1Q Rb8 Qc1 Rd8 Nb1 Qa3 Rf5 Q8f7 Qg1 Be3+ Kg3 Bf2+ Kg2 Ne6 Rf4 Q8a4 Rb2 Qaa6 Rd2 Bc5 Qf2 Ba7 Qh4 Bf2 Qg3
3q1qb1/1p3k2/bq2pN2/pQQQP1Rp/4rB2/nQ2B1KQ/r2R3N/5B2 w - - 0 1 legal: proof: f4 d5 h4 a5 b4 g5 g4 gxf4 c4 Nd7 cxd5 Nc5 b5 Na6 bxa6 Qd7 a4 Qxa4 g5 Be6 g6 Bc8 Bg2 Bh6 Bf1 Bg5 hxg5 Qa2 Kf2 f5 e4 c5 g7 h5 d6 e6 g6 f3 d7+ Ke7 d8B+ Ke8 a7 c4 e5 c3 Rh2 f4 Qb3 c2 d4 Nh6 d5 Bd7 d6 Nf7 Nd2 Rc8 a8Q Rg8 Bg5 Qb2 Qa6 Rc4 Qab5 Re4 Ra2 Rf8 g8Q Bc6 g7 Qd4+ Qe3 Qb6 Qec5 Qd8 Qb3 Bb5 Qh7 Ba6 g8Q Qb6 Rg2 Bd3 Bb2 c1Q Qf5 Qd1 Qh3 Ba6 Qg6 Rg8 Bc1 Kf8 d7+ Nd6 Qd4 Nb5 Qe8+ Kg7 d8Q Na3 Qeb5 Kf7 Qd6 Rc8 Qdd5 Rc2 Q4c5 Rb2 Ra1 Ra2 Rb1 Ra4 Rb2 Re4 Nc4 Qd4+ Be3 Qd8 Nd2 Qb4 Qbc6 Qbb6 Bh6 Bd3 Rg5 Bc2 Q6b5 Bb1 Ke1 f2+ Ke2 Bd3+ Kf3 Bc2 Kg2 f3+ Kg3 Bd3 Rg6 Bc2 Bhf4 Bb1 Rg5 Bc2 Bc4 f1Q Be2 f2 Ngf3 Qe1 Nh2 f1B+ Bf2 Qd1 B2e3 Qf8 Bd3 Ra4 Bc4 Bh7 Ne4 Bg8 Nf6 Be2 Bd3 Re4 Bc4 Qd3 Rd2 Bf1 Qdc6 Qdd8 Q6d5 Be2 Bd3 Bd1 Bf1 Be2 Qb5b4 Ba6 Q4a4 Qbd6 Qab5 Q6b6
q1Q1R3/p1b3r1/4QbpR/R1R1pN1Q/4nR2/KP1nNbq1/2B3p1/2k4B w - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 b5 a4 c5 axb5 Ba6 dxc5 Bb7 g4 Bc8 f5 h6 Bf4 Na6 g5 Rb8 Bc1 Rb6 Bf4 Rf6 gxf6 Nb4 Bc1 Na6 Bg5 hxg5 Kd2 Kf7 Kc3 d5 Kb3 e5 c4 d4 h4 g4 b6 d3 b7 g3 b8R g6 c6 d2 c7 e3 h5 e2 h6 e1B h7 Be7 c5 Qe8 c6 Bd7 c8B Ba3 c7 Bc5 Nc3 Ne7 Bb7 Qc8 Nf3 Rd8 h8Q Nd5 Nd4 Bc6 Qg4 Bf2 Bd3 d1Q+ Bc2 Ndb4 Nd5 Bb6 Qhh5 Nc5+ Ka3 Rg8 b3 Qf3 Ne3 Ne4 Ra2 Qe8 c8R Rg7 Rh4 Bd5 Rc5 Bc7 Bc6 Qf8 Re8 Nd3 Qh3 Qe7 Rf4 Qd8 Rh8 Qa8 Rh6 Kf8 f7 Ke7 f8R Kd6 f6 Qg2 f7 Be1 Rc3 Qg1 Nc4+ Kc5 Qe6 Qf2 Nf5 Qf3 Ne7 Kd4 Re8 Bf2 f8Q Qg2 Na5 Ke3 Nf5+ Kd2 Rc5 Kc1 Nc4 Be1 Nce3 Bea5 Bb5 Bd8 Ba4 Bac7 Bc6 Bf6 Qfg8 Nd2 Qc8 Bf3 Qge6 Ne4 Qa6 Nd2 Ka4 Bd1 Qac8 Qh2 Bf3 Ne4 Bh1 g2 Ra3 Qg3 Ra2 Ne1 Kb4 Bf3 Raa5 Nd3+ Ka4 Nb2+ Ka3 Nd3
1R6/Q2p1B1n/2qKNBq1/R1p2rp1/1pPn4/3N2r1/2kNq1QQ/n4N1N w - - 0 1 legal: proof: d4 a5 e4 e5 b4 axb4 g3 f5 dxe5 fxe4 f4 Ne7 f5 Ng8 Bg5 b6 Bc1 Ba6 h3 Be2 h4 Bh5 Qe2 g5 Qd1 Bg6 h5 Bc5 hxg6 Bd4 Rh6 Be3 Rh1 Bf4 gxf4 Ra3 Qh5 Ra6 Qd1 Ra8 Ke2 Ke7 Ke3 h5 Kd4 c5+ Kd5 h4 a4 e3 g7 e2 e6 Kf6 a5 e1Q e7 h3 e8N+ Kf7 f6 Kg6 a6 Kf5 a7 b3 f7 b2 f8N b5 Qe2 h2 Ng6 b4 Nd2 b1N Qg2 Nc6 Ngf3 Rh3 Bb2 Qb8 Ra5 Qe2 Nge5 Qd1 Nd3 Rh8 Nf6 Qb7 Nh5 Qb5 Kd6 Nb8 Bf6 Nc6 Ng3+ Kg4 c4 Qa6 f5 Na3 Be2 Rh3 Ndf1 Rf8 a8Q Nc2 Qa7 Qe1 Bd1 Na1 N3d2+ Qe2 Bc2 Qb7 Bd1 Nd4 Bc2 Qbe4 Bd1 Ne7 g8Q Ng6 Qh7 Qe8 Rb5 Rf7 Rb8 Nf8 Qh8 Nh7 Rg1 Kh4 Nh1 Rg3 Bc2 Qh5 Bd1 Qg6 Bf3 Qe2 Bd5 Rf8 Bf7 Kg4 Ne3+ Kh4 Rc1 Kh5 Nef1 Kg4 Rc2 Rg8 Ra2 Rf8 Ne5+ Kf4 Ra4 Ndc2 Ra5 Nd4 Nd3+ Kg4 Qc6 Re8 Nb3 Qe4 Nhf2+ Kf3 Nbd2+ Ke2 Be6 h1Q Bg7 Rg1 f6 Nf8 f7 Rg3 Qh2 Nh7 f8N Qhf3 Nh1+ Kd1 Bf6 Qfe2 Bd5 Re5 Bf7 Rf5 Ne6 Q4g2 Qf3 Kc2 Qf2 Qgf3 Qfg2 Qc6+
1rq3B1/B2p1q2/b1B3NR/BQ2R3/4p1p1/1B1pK1Pq/2Qn2kN/q4N1b w - - 0 1 legal: proof: d4 a5 h4 b5 b4 axb4 d5 g5 d6 g4 Nf3 cxd6 Qd4 d5 Qd1 d4 Ng1 Ra6 Kd2 Rg6 Ke1 Rg5 hxg5 Bh6 Qd3 Bg7 Qd1 Bf8 e4 f5 e5 Bg7 Be3 Qc7 Bc1 Bf6 exf6 Qd8 f4 e5 Qf3 e4 Qd3 Nc6 Qd1 Ne5 fxe5 Kf8 Nc3 Kf7 Nb1 Ke8 Ke2 Kf7 c4 Ke6 a4 h5 c5 Kd5 a5 f4 c6 b3 g3 b2 f7 h4 f8B h3 a6 h2 a7 b4 a8B b3 c7+ Bb7 c8N Nf6 g6 Nh5 g7 Rg8 e6 Nf6 e7 Ne8 Qc2 Nd6 e8Q Nc4 Bb4 Nd2 Ba5 f3+ Kf2 Qf6 Ne7+ Ke5 Ba6 d3 Qh5+ Kd4 Bc4 Rb8 g8B Ba6 Ng6 Qd8 Qb5 Qc8 Na3 b1Q Bc6 b2 Bb3 Qa2 Nc4 b1Q Ne3 Qbb2 Nf1 Qc3 Ba3 Qc4 Bd6 Qf7 Rc1 Rb6 Bb8 Qa1 Qa2 Rb7 Ba7+ Rb6 Rc5 Rb8 Nh3 Qh7 Ng5 Qh3 Rg1 h1B Qc2 Qa4 Rg2 Qc4 Rh2 Qf7 Ke1 f2+ Kd1 Qg2 Rh6 Qh3 Re5+ Rb6 Nh2 Ke3 Kc1 Ke2 Ngf3 Rb7 Nf1 Rb8 N3h2 Ke1 Kb2 Ke2 Kc3 Ke1 Ne3 f1Q Kd4 Q1f6 Nef1 Kf2 Qb1 Kg2 Qc2 Qh8 Ke3 Qhg7 Re6 Qb2 Re5 Qa1
1kB2b2/1b5p/2Pp3b/NQN1r3/2QbNb2/1pQn3Q/3B2pK/3Q1rRR w - - 0 1 illegal: No proof kernel
k2B1Br1/p2Q1p2/bP1bp3/4rQBq/B6p/5K1r/N2NR1B1/Rr1bR3 w - - 0 1 illegal: No possible last move
1R4rQ/2B1k2p/q7/prpB4/3Q1QQp/1r1R1qp1/P1nKnB2/1Q4NN w - - 0 1 legal: proof: g4 b5 c4 e6 cxb5 c6 h4 f6 d4 Bd6 d5 Bf8 g5 fxg5 d6 gxh4 e4 Be7 Qd3 Bf6 Qd1 Bd4 Ne2 Bb6 Ng1 Bc7 dxc7 Kf8 Bf4 Ke7 Bc1 Ke8 b6 d5 Rh2 d4 Rh1 Ba6 Rh2 Bc4 Rh1 Bd5 exd5 Qf6 Nc3 Qe7 Nb1 Qd8 c8Q a5 f4 g5 b4 e5 b7 d3 d6 c5 b5 g4 b6 e4 f5 g3 f6 e3 f7+ Kf8 d7 e2 Nc3 Ra7 Be3 Nf6 Rb1 Nd5 Ne4 Nf6 Bf2 Rg8 Bg2 Ra8 Kd2 e1R Qg4 Qe8 d8Q Nh5 Qd4 Na6 b8Q Nb4 b7 Re3 Qgf4 Ke7 Qcg4 Qc8 f8B+ Ke8 Bd6 Nc2 Bc7 Ke7 Rb4 Ra7 Qa8 Qe6 b8Q Qa6 Qb6 Rb7 Qac8 Rg7 Qh8 Rg8 Rb3 Rbb8 Ra3 Rb7 Qb1 Rb2 Rb3 Rf3 Rb8 Rb5 Ng5 Re3 Bd5 Rf3 N5h3 Re3 Qff3 Nf4 Rh2 Ne2 Qff4 Qb6 Be1 Qa6 Nf2 Rf3 Nh1 Re3 Kd1 d2 Rf2 Rg7 Rf3 Rg8 Bf2 Reb3 Rd3 Nc1 Rc3 Nd3 Ke2 Nc1+ Kf3 d1Q+ Ke4 Na1 Ke3 Qf3+ Kd2 Ne2 Rd3 Nc2
2b4n/1Nb5/k1rQB2b/1r3bRK/3B2Rb/2N2qqn/3R1PN1/1QqR1Rn1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 a5 g4 h5 d4 c5 g5 Kc7 d6+ Kb6 d5 e5 g6 h3 d7 h2 g7 a4 d6 e3 Kf3 e4+ Kg3 c4 Kf4 e2 Bh3 e1B Qe2 h4 Kg4 a3 Qa2 c3 Bh6 c2 Qf7 c1Q Bf4 a2 Qh5 e3 Nd2 e2 Bh6 Nc6 Ne4 Qc7 Qg6 Nge7 g8R Nd5 Nf3 Ra5 Kh5 Ne5 d8R Nf7 Be6 h3 d7 Qg3 Rf1 h1B Nh4 h2 Nc3 Be4 Ng2 Bf5 Rg7 Ka7 b6+ Ka6 b7 Rb5 b8R Bd6 Qf6 Bc7 Rg5 Bd2 Qg6 Re8 Bg7 e1N Bd4 Nf3 Rb1 a1B Qf6 Qc2 Rbd1 Nh8 Qf8 Qc1 Qd6+ Nb6 Rg4 Bh6 Rd2 Ng1 Ra8+ Kb7 Ra5 Nd5 Rdd1 Rg8 Rd2 Rg6 Rdd1 Rc5 b5 Bb2 b6 h1Q+ Nh4 Qe4 Ng2 Qef3 Rb5 Ka6 b7+ Rc6 b8Q Ba3 Rc5 Rg7 Qb1 Re7 Bg8 Re5 Be6 Bb4 Re8 Bba5 d8N Bab6 Nb7 Bd8 Na5 Bh4 Rd8 Bc7 Nb7 Re3 Nb5 Rb3 Nc3 Rb5 Rg8 Ne7 Rg5 Neg6 Re5 Nf8 Re2 Nh7 Rg6 Ng5 Red2 N5h3 Rg7 Qff4 R7g5 Qff3
1q4r1/2Qq1QR1/1N1nRbB1/2B2r2/1K2bkn1/3r2bB/1P1R1Nb1/bRR2q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 e4 Kd6 d4 f5 Kd2 a5 Kc3 c5 b6 h5 b7 a4 g5 a3 g6 a2 g7 c4 Qf3 h3 Na3 h4 Be3 h2 Rc1 a1B Qg2 f3 Nc2 h3 Kb4 c3 Re1 f2 Ba6 f1R Rb1 f4 Qg6+ Nf6 g8R f3 Rg7 f2 Na3 c2 Qf7 Nbd7 b8R c1B Bb5 Nb6 Bd7 Nc4 Rb6+ Kc7+ Rd6 Be7 e5 Bb7 e6 Rg8 Bc8 Qe8 Bd7 Bd8 e7 Rd1 Bg4 Ra5 Bf5 Qc6 Re6 f1B Bf2 Bf4 d6+ Kd7 Bg4 Rf5 d5 Be5 Bc5 Bg2 Nf3 Rd4 Rhc1 h1Q Ne1 h2 Nd3 Qf1 Bh3 h1Q Nf2 Qh2 e8B+ Kc8 d7+ Kb8 d6 Ng4 Qh5 Bdf6 d8R+ Qc8 d7 Kc7 Bg6 Bbe4 Bh7 Rd6 Qf7 Kc6 Rf8 Kd5 d8Q Qg3 Qb6 Qgd3 Rd8 Bg3 Bg6 Qb8 Nb5 Rd7 Nd6 Qd4 Nc8 Qdd3 Rc6+ Ke5 Re6+ Kf4 Qb7 Qdd6 Nb6 Qdc7 Qc8 Rdd5 Rdd6 Qd7 Qc7 Rd1 Rd4+ Nd6 Rd5 Rd3 Rd4 Rf3 Rd2 Rd3
1R3r1R/n1Rn4/1q1r1N1N/Kb1nn1b1/5bNP/1N1q4/BQQ2nk1/1N4Bq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 c5 b4 a5 h4 g5 e4 f5 b6 c4 b5 f3 b7 f4 b6 a4 Kb4 g3 Na3 g4 Qd2 c3 Kb5 f2 Bg2 f1N Qd1 c2 Ra2 f3 Bh3 f2 Ne2 g2 Be3 c1B Qc2 g1N Nb1 g3 Be6 Nd7 b8R a3 b7 g2 Ra1 Bd2 Nc1 a2 Nb3 Ra6 Rh2 Nh3 e5+ Ke7 Bf7 g1N e6 Kf6 e7 Nf3 d6 Nfe5 d5 Bh6 Rg2 Bf4 Rg7 Bc1 Ba7 Rb6+ Ka5 Ne3 Rh7 f1Q Rh5 Nf8 d7 Nf2 d6 Nd5 Rh7 Qd3 e8N+ Kf5 Nf6 Qc7 d8N Nfd7 Nc6 Nge7 Rh6 Rf8 Rh8 Bg5 Be6+ Kf4 Bg8 Nf7 Ne5 Kg3 Neg4 Nfe5 Be6 Bcf4 Bg8 Nc5 d7 Kg2 d8N Bd7 Nf7 Bb5 Nfh6 Rd6+ Bb6 Qc6 Ba7 Ncd7 Bc5 Kg3 Bb6 Nc8 Bd4 Nd1 Bg1 Na7 Nc3 Ng6 Nc5 Rf7 Qa4 Kg2 Rc1 a1Q Bh2 Ba6 Rd8 Be3 b8Q Nge5 Qb2+ Nf2 Rb8 Bef4 Rc2 Qc1 Nb1 Qh1 Bg1 Rf8 Rc3 Bb5 Qac2 Ne7 Ba2 Qb7 Nb3 Nd5 Rc7 Qb6+
1B1nnQ1R/K1bq1r2/3RNb2/n1R4N/b2P1q1B/1BB5/B1r2Qb1/q1bk4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 d3 h3 g6 h4 d7 c4 e6 c3 g7 a4 e7 f3 e8B c2 b7 h2 b5 f4 b6 a3 Bf7 a2 Nc3 h3 Qd2 Bd6 Rb1 a1B Qe1 Nc6 b8B Ra7 b7 Nf6 g8Q Bc7 Ne4 Ne8 Bd2 c1B Ba2 Qe7 d8B Qd7 Bg5 Nd8 Ng3 Rh7 Be7 Rf7 Bh4 Bc3 Bb3 Ra2 Qf8 Rc2 Ba2 Ba1 Rb5 Bab2 Rc5 Ba1 Bg2 Bab2 Kf1 f2 Ke2 f1N Nh5 Ne3 Bgd5 f3+ Kf2 Ba1 Bdb3 Nc4 Qe2 Na5 Qf1 Qd5 Qe1 Bd7 Ne2+ Ke5 Ke3 f2 Nef4 f1Q Qg3 Ba4 Qf2 Bab2 Rg1 h1Q Rg6 h2 Rd6 Kf5 Ne6+ Kg4 Ba7 Qhg1 b8R h1B Ra8 Bf6 Bb8 Qh2 d4 Qe1+ Kd3 Qf4 Bc3 Qc6 Qf1 Bg2 Qf2 Nab7 Kc4 Qd7 Qg1 Kf3 Kb4 Ke2 Qf2+ Kd1 Kc4 Bac6 Kb4 Bcf3 Kc4 Na5+ Kb4 Nac6+ Kb5 Na5+ Ka6 Bc6 Ka7 Ba4 Ra6 Bd2 Rd6 Ndb7 Nhg7 Kc1 Nh5 Ng7 Qe8 Qd1 Ka6 Be3 Ba7 Qe1 Qe7 Qh1 Re8 Nd8 Rh8 Ne8 Qf8 Qd1 Bb8 Qe1 Bb4 Qc3 Ka7 Qa1 Bd2+ Kd1 Bc3 Bc1
nq1nR1BB/5bK1/1b1rr1Q1/nN1q2n1/2P1B2Q/3Q2NB/4b2R/q2nk1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 g4 a5 b4 f5 b6 h5 g6 d5 c3 f3 g7 h4 b5 f2 b7 h3 g5 d4 b6 a4 g6 a3 Bf4 a2 Qd2 h2 Bh3 f1N Nf3 Ne3 Qf2 d2 Rc1 Kd3 c4 d1B Qh4 Ke2 Bg3 h1Q Rc3 f4 Nfd2 d3 Bf2 f3 Bg1 f2 Rc2 f1Q Na3 Be6 Nb5 Nh6 g8Q Bc5 g7 Bf7 Qh7 Nd5 g8B Bf2 Qg6 Nc7 Rb2 Qe8+ Kf6 Ke1 e5 Ra6 e6 Na8 e7 Nc6 b8B Nd8 Be5 Qd5 Ne4 d2 Ng3 Rh7 Rc1 a1N Bc3 Qf8 e8B Nb3 Bc6 Na5 b7 Rh8 b8Q Bb6+ Qbf4 Qb4 Rcc2 Be2 Qff5 Rh7 Be5 d1N Bb7 Rh8 Kg7 Qbd6 Qd3 Qb8 Bh7 Re8 Bg8 Re6 Ra2 Qd4 Be4 Qf5 Bf6 Qa1 Rab2 Qd5 Be5 Bf3 Rh2 Be2 Bed4 Be8 Ra2 Nhf7 Rd2 Ng5 Ra2 Bh5 Raf2 Be2 Rf8 Bf7 Re8 Ra7 Kf8 Rd7 Bh8 Re5 Kg7 Rd6 Qf5 Re7+ Qf6 Re5 Qg6 Ree6+
2q4B/K1b5/nn1R1BR1/b1P1QQBr/B2NB1bq/q4r1q/1n2q2N/1N4k1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 h5 f4 a5 c4 d5 g4 a4 b6 e5+ Kb5 h3 f6 h2 g5 a3 g6 a2 c5 h4 f5 d3 g7 d2 b7 Ke3 f7 Kf2 f6 e4 Qc2 h3 Bg2 d4 Nf3 d3 Rg1 h1Q Nh2 e3 Be4 e2 Rg6 d1Q Bg5 Na6 b8Q d2 Qe5 Bd6 f8B e1B f7 Ne7 g8B Rh5 Bg7 Bc7 f8B Bg4 Bh8 Qc8 Bb3 Nd5 Bfg7 Nb6 Ba4 Kg1 B7f6 Qe2+ Kc6 d1N b5 Ba5 Qd3 Nd7 b6 Nb2 b7 Nb6 b8N Qhf3 Kb5 Qg3 Nc6 Qh4 Nd4 Ra7 Nf1 h2 Kc6 h1Q Nh2 Qhg2 Qf3 Qgh3 Qff4 Ra8 Qff5 Qg8 Kb7 Rf8 Ka7 Rf7 Bh6 Qc8 Bhg5 Rd7 Nc6 Rd3 Nd4 Rf3 Nc3+ Kf2 Rd1 a1Q Nb1 Qa2 Nc2 Qa3 Rd6 Kg2 Nd4 Kg1
4qb2/n1n1rNq1/NbnRN3/PN1rBQ2/2Q1R1b1/1K1BN2k/n2q4/1B5n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 e5 Kc2 b5 f4 c5 a4 h5 g4 b3+ Kb2 b4 d6 e4 f6 Ke6 g5 Kf5 f7 c4 a5 h3 g6 e3 d7 h2 g7 h4 d5 e2 d6 Kg4 f5 h3 f6 Ra7 Bh6 Qe8 d8N Na6 d7 Ne7 g8B Nc6 Bf4 Nc7 Na3 Rh5 Bh7 Rd5 Nf3 e1B Nb5 Bf2 Qc2 Bb6 Nfd4 Kh4 Rg1 h1N Rd1 h2 Bfd3 Kh3 Be5 Rb7 Rge1 c3+ Kb1 b2 Ka2 b1N Nf5 Na3 Re4 Ra7 Kb3 Rb7 Qc1 c2 Ne6 Ra7 Qf4 c1Q d8N Qd2 Nc5 Be6 Ne3 Bg4 Na6 Rb7 Ka4 b3 Bb1 b2 Kb3 Ra7 Bd3 b1N Bf5 Bfc5 f8N Nc3 f7 Na2 Nfe6 Be7 f8Q Bb4 Nc3 Nab5 Nf7 B4c5 Qg8 Bf8 Bh7 Rb7 Qf5 Nba7 Nb5 Ng3 Qgg5 h1Q Qgf4 Qhg2 Qf1 Nh1 Bb1 Na8 Qc4 Re7 Bg6 Nc7 Bh7 Qc1 Rdd4 Qcd2 Bd3 Rc5 Rd6 Rd5 Bb1 Bd4 Rf4 Qg3 Qg5 Bb6 Bhd3 Bf5 Re4 Qg4 Qf6 Qg7 Qg5 Bg4 Qg6 Na8 Qf5 Nc7
rK2N3/5bnq/1nq3RP/R3rQ2/3r1RR1/b2QB1r1/3B1RN1/rB1n1bk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 h4 Ke5 b4 Kd4 h5 f5 b6 a5 b7 c5 h6 g5 d6 g3+ Kf3 c4 b5 g2 d7 c3 b6 c2 e5 a4 e6 a3 e7 a2 e8Q Ra7 Qg6 Qe8 d8B Ra3+ Nc3 Ra4 Ne4 Ba3 Rh2 Qd7 Nd6 Ne7 Nh3 g1R Bd3 Re1 Ne8 Re5 Rf2 Qc7 Qe2 Nd7 b8R Rc4 b7 Nb6 Ra8 Be6 b8R Bf7 Ra5 Rg8 Rb1 a1R Rb4 Rf8 Rc8 Qa7 Rc6 g4+ Kg2 f3+ Kg3 Qd7 Kf4 g3 Qh7 g2 Rg6 g1R Be4 Ng8 Bg5 Nf6 d3 Qc7 Bd2 c1Q Rba4 Rg3 Be3+ Kc3 d4 Qb7 d5 Rd4 d6 Rh8 Rf1 f2 d7 Rf8 Rg1 f1N d8R Qc2 Rg2 Qc6 Rf2 Qd3 Bd2+ Kc2 Qe3 Kd1 Rc4 Qb1 Qd3 Ne3 Rdd5 Rh8 Rdb5 Qc2 Rbb4 Rf8 Ng1 Rh8 Nf3 Rg8 Nh4 Rh8 Nc7 Ne8 Ng2 Ng7 Rba4 Ra8 Ne8 Qb3 Qg8 Qc2 Qf8 Rb5 Qc5 Qb1 Ke5 f4 Bf5 f3 Rab4 Rd6 Rf4 Rd4 Be6 Qc2 Ba2 Qb1 Qd5 Qbc2 Bb1 Rc5 Re2 f2 Rg4 f1B Rf2 Qc8 Kd6 Qf5 Re6 Qh7 Rg6 Rb5 Qf5 Qe4 Kc7 Rc5+ Qc6 Re5 Qc3 Qf3 Qcd3 Qd5 Rb2 Qe6 Rff4 Qf6 Qc3 Ke2 Kb7 Nd1 Qb3 Rf3 Qbd3+ Kf2 Ra2 Kg1 Rb2 Ra6 Kb8 Qc6 Ra2 Rg3 Be3+ Kh1 Raf2 Ra7 Be7 Ra6 Bb4 Kg1 Bbd2 Ra8+
bK3qR1/2P1BbQ1/1B5r/Rq5B/3Qn1b1/N1q2B2/1Nnr2QB/kr1b2b1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 b4 h5 g4 d3 f4 a4 c4 a3 b6 h3 c5 e4 b5 e3 c6 h4 b7 e2 b6 e1R Be3 d2 Ne2 a2 Na3 h2 Bg2 h3 Rg1 h1B Nc1 h2 Bf3 Na6 b8B Bc5 b7 Qf8 Nd3 Rh6 Nb2 d6 Qc2 d1B Qg2 Bc2 Bc7 Rb1 b8Q Bd1 Qb4 Bb3+ Qc4 Bd7 Bb6 Rd8 c7 Bc8 Kc6 d5 Bf2 d4 Bg3 d3 Qa4 Bce6 Kb7 d2 Qd7 d1B Qd4+ Ke7 g5 Nb4 g6 Nf6 g7 Ne4 g8B Nc2 Bh5 Bc8+ Ka8 Bf7 f6+ Ke6 Kb8 Rd5 Bh7 Kd6 f5+ Kc6 Nac4 Kb5 Bf4 Kb4 Na3+ Kb3 Be5 Be8 f7 Bcd7 f6 B7g4 Qg3+ Bhf3 Qg2 h1Q Bg3 Qh4 Bh2 Qg5 Bf5 Rd6 Bc8 Qd5 Bb7 Qc6 Ba8 Qb5 Bb7 Qe7 f8Q Bf7 Qg7 Rd7 Qdf2 Rd2 Qd4 Qf8+ Qd8 Be8 f7 Be3 Qdd4 Bf2 Re1 Bg1 Rf1 Qh8 f8B Bf7 Bc8 Qg8 Be7 Qf8 Rf2 Ng5 Rf1 Ba8 Rf6 Ne4 Rd6 Rf2 Rd8 Rd2 Bb7 Rc1 Rb1 a1Q Bc6 Ka2 Bb7 Ng3 Bf3 Ne4 Nac4 Ne3 Nd3 Qc3 Ndb2 Qfe8 Rc8 Nc2 Ra1+ Kb3 Ra6 Rb1 Na3 Ka2 Ra5 Ka1 Rd8 Bg6 Rc8 Qf7 Rg8 Qf8+ Ka7 Be8 Kb8 Bf7+
2n2k2/Rb4n1/5B1B/1q1Q1Q1r/NrnK1rBq/1R2PN2/n4b1B/1Bq2b1R w - - 0 1 illegal: No possible last move
1NR5/qBB1n1RQ/N1R5/nk1r3N/Nb2K1rP/3n2rq/Q1bN3b/3n3q w - - 0 1 illegal: No possible last move
2b3q1/kN1N1n1b/2rq4/B1R3nQ/1P3n1b/Q2r4/1NNRKQqq/1B4Nr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 b4 f5 g4 a5 e5 c5 e6+ Kc7 g5 Kb6 e7 h3 e8N h2 g6 f3 g7 h4 d6 a4 d5 h3 d7 f2+ Kd2 c4 d6 a3 Qa4 c3+ Ke2 a2 Qc2 f4 Kd3 f3 Nd2 Ra6 Nb1 Nh6 g8Q Nc6 Bf4 Be7 Qg4 Bh4 Na3 Nf7 Rd1 a1Q Qh5 Qa2 Rd2 Nd4 Ke3 Rh6 Bd3 f1Q Qc1 f2 Nc2 Qd5 Qa3 Nf3 Bh7 Qc7 d8N Qg2 d7 f1B Nd6 Bd3 Nc4+ Ka7 Nb7 Qcd6 d8Q N3g5 Nb2 Rg6 Qf8 Qb3 Ne1 c2 Bg3 c1N Nc2 Ne2 b6+ Kb8 Be5 Nf4 Bf6 Rh6 Bd8 Ra5 Bg6 Rd5 Be4 Qc7 Qc5 Rc6 Qd4 Qd6 Qf6 Nfe6 Qf2 Qc4 Bf5 Be4 Bh7 Rd3+ Ke2 Bg6 Nf3 Bf5 Rc1 h1R Ng1 h2 Ne1 Rc3+ Nbd3 Nh6 Na5 Bg6 b7 Nf4+ Kd1 Qg8 Nb2 Re3 Bc7+ Ka7 b8N Bd3 Rc5 Nhf7 Nd7 Bf5 Qd3 Rg3 Nb7 Bg6 Ba5 Re3 Ne2 Rf1 Qa3 Bf5 Bg6 h1Q Bh7 Qhh2 Bg6 Rh1 Ng1 Be6 Bb1 Rd3 Nc2 Bf5 Ke1 Bh7 Kd1 Nd5 Ke2 Nf4+
qRQK4/5r1q/1nR5/3B1Bk1/RPQb2Bn/B1B2b1n/Nr2r1q1/1Nn1b3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 c5 d4 a5 d6 f3 Kd5 f2 e4 h3 b3 a4 b6 c4 b7 a3 d7 h2 Qd3 a2 Be2 f1R Qc2 c3 Bf3 h4 Ne2 h3 Ba3 Bb4 e5+ Kg5 e6 f5 e7 f4 Ke6 Nh6 e8B Nf5 d5 Nh4 Bg6 Re8+ Kf7 Ra7 d6 Rf2 Nc1 Ree2 Bf5 Ba5 Qd3 c2 Qc4 Be1 b4 Qa5 d8R Nd7 b8B Nb6+ d7 Bb7 Be5 Be4 Rg1 h1Q Ke7 h2 Rb8 Qg2 Ke8 h1N Kd8 Ba8 Bd5 f3 Bc3 Qh3 Rf1 Rh2 Rg1 f2 Rg3 f1Q Rf3 Kh6 g5+ Kh5 g6 Kg5 g7 Nf2 g8B Qfg2 Bge6 Bb7 Nd3 c1N Bg4 Bc6 Bef5 Rc7 Re3 Qa8 Re6 Bb7 Rc6 Rb2 Nc5 Qd3 Nb3 Nh3 Ke8 Qdc2 d8Q+ Re7+ Kf8 Qd3 Qc8 Rf7+ Ke8 Qde4+ Bfe6 Qh7 Bef5 Qf1 Kd8 Rhe2 N1d2 Nd3 Nc1 Qg2 Rb1 a1B Na2 Ba6 Rd1 Nc1 Nb1 Bb5 Rd2 Ba4 Rd3 Bc2 Rf3 Be4 Re3 Bf3 Re7 Re4 Ra7 Ree2 Ra4 Rbd2 Bg7 Bd4 Be5 Rb2 Bg7 Bg1 Bc3 Bd4
1bQ1q1b1/1Q2r3/b5nP/Rr4nQ/B2N3B/3kn1r1/B2Bq1Bb/RNq4K w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kg2 Kf6 e4 Ke5 h4 f5 b4 a5 c4 d5 c5 g5 h6 d3 h7 Kd4 h5 g4 h6 g3 c6 d2 c7 f3+ Kh3 a4 e5 g2 Kh2 f2 e6 a3 b6 f4 b5 a2 b7 f3 b6 Ra3 e7 Nc6 b8Q Be6 e8B Nf6 c8B Ne7 b7 Ng6 Bd3 f1Q Bcd7 f2 B7b5 Ne4 Bec6 Qe2 Qc2 f1B Be8 d1Q Bf7 Ng5 Qd2 Qe8 Qa5 Bd6+ Bf4 Qc1 Qc8 Bb8 Be4 Rg3 Ba4 Rf8 Bg8 Rf7 Bd2 Re7 Bf3 Bf7 h8B+ Kd3 Bf6 d4 Bfc6 Be6 Nf3 Bc4 Kg1 Bf7 Rh3 Bd5 Kh2 g1B+ Kh1 Bh2 Rh5 Bc4 Qe5 Ba6 Ng1 Bh3 Bg2 Bf5 B8d5 Be6 Bdb3 Bg8 Bbd5 Bd6 b8Q Bc7 Qbb7 Bb8 Na3 Nh3 Bh4 Ng5 Rb1 a1N Ba2 Nc2 Ra1 Ne3 Nb1 Nh7 Bac6 Kc2 Be1 d3 Nf3 d2 Ba4+ Kd3 Rg5 d1R Qec5 Rd2 Nd4 Rb2 Rf5 Qc3 Bd2 Rb6 Qcd5 Qc5 Qf3 Ng5 Qh5 Qc2 Ra5 Rb5 Bf1 Qc7 Bg2 Qc1+
2q2RB1/q1n2BbP/N1nn3r/Nr1Bb3/QNR5/K5Bk/q1bBqQ2/3r4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 Kf6 h4 g5 c4 d5 Kc2 a5 Kb3 d3 e5+ Kf5 c5 a4+ Ka3 d4 b4 f3 h6 Kg4 h7 f5 h5 f4 h6 d2 c6 d3 c7 Be6 c8B Nc6 b6 Nge7 b5 Ra5 b7 Bf5 b8N Bg7 e6 Nd5 e7 Nc7 b6 Rb5 Bb7 Qc8 Ne2 f2 e8B f3 Na6 Bg6 Bg2 f1N Nec3 Ne3 Na2 Nf5 Bf7 Nd6 N2b4 Be5 Qc2 d1Q Bd2 f2 Rf1 Qe2 Bgd5 Kh3 Bg8 g4 Bdf7 g3 Qc5 Ne7 Bbd5 g2 b7 g1Q b8B Nc6 Ra2 Be4 Rc2 Bf5 Rc4 Bg7 Rfc1 f1Q Qf2 Qfe1 Rf4 Q1d1 Rcc4 Qc2 Nc3 Qcb1 Ne4 Bg6 Nec5 Be5 Be3 d2 Nb7 d1R Na5 Bc2 Bd2 Qgg4 Rf5 Qd4 Bfe6 Qa7 Bgf7 Rg8 h8Q Rg6 h7 Rh6 Qe8 Qc1+ Ka2 a3 Bg8 Be4 Kb3 a2 Bef7 Qb1+ Ka3 Bg7 Rf6 Bg6 Qe4 a1B Qc2 Be5 Qa4 Rc1 Be8 Bc2 Rf8 Rd1 Bef7 Qa8 Ba7 Qab7 Bae3 Qbb8 Bf4 Qa7 Bg3 Qa2+
krrn2QQ/Bq2RP2/BB6/bQ1Q1n1b/3Qb3/6nK/1qRrN3/N4nq1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kd7 Kf2 e5 g4 c5 Kg2 Kc7 d4 Kb7 b4 a5 d6 h5 b6 c4 b5 e3 g5 c3 d7 a4 f5 e4 f6 h3+ Kh2 a3 f7 h4 d5 e2 d6 e1N g6 c2 g7 e3 Bd3 e2 Bg6 a2 Bd3 Ng2 Bd2 c1Q Qb3 e1R Qa4 Rd1 Ba5 Ne7 Na3 Ne3 Qd4 Qb2+ Nc2 Qc7 d8Q Bg4 Rc1 a1Q Bf1 Qc6 d7 Rd2+ Be2 Qab1 Na1 Bh5 Rc2 Rg8 Qe8 N7f5 d8Q Qe1 Qee4 Bb4 Qed5 Rh8 Q8f6 Rc8 g8Q Bc3 Qfh8 Bb4 Qf3 Qe4 Qfg2 Nc6 Qf3 Qe7 Qfd5 Kb8 b7 Nd8 Qc3 Qd7 Qcf6 Ka7 Bc7 Qc6 b8B+ Kb7 Ba7 Ba5 Qdg2 Qd5 b6 Qf3 Qd4 Qc6 Nf3 Qeb1 Re1 Q1c1 Kg1 h2+ Kf2 h3 Ng1 h1B Qgd5 Nd6 Kg3 h2 Kh3 Ndf5 Bb5 B1f3 Bc4 h1N Bf1 Nhg3 Bb5 Ng4 Re7 Nge3 Ne2 Qg1 Bd3 Nef1 Bc4 Qb5 Bd3 Be4 Bc4 Ka6 b7 Qb6 b8Q Qc6 Ba2 Qb2 Qbb4 Rab8 Bc4+ Rb5 Bd3 Kb7 Qbb3 Rb4 Ba6+ Ka8 Qbc4 Rb6 Qcb5 Rbb8 Bcb6 Qb7
1NNrKN1n/N3bP1b/5Q1Q/5rn1/1Br1Q1q1/2Rq2R1/kqB3nb/1q5N w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 e3 g4 h3 b6 h4 g5 c6 f5 e2 b7 e1N g6 h2 g7 a4 f6 a3 b5 a2 b6 h3 f7 Bf5 Bd3 Nf6 g8N Bh7 Bc2 Ra5 Qf3 Nbd7 b8N Ng2 b7 Ne4 Na3 Ng5 Qe4 Ne5 Nd7 Ng6 b8N e5+ Kc4 c5 d4 Rb5 Bd2 Be7 Rc1 a1Q Ne2 Qb2 Rhg1 h1Q Ng3 h2 Nf8 Qc8 Bb4 Qg4 Bb1 Ra5 Rc3 Rb5 Bc2 Ra5 Ra1 Qhd1 Nh1 Qd2 Rg1 Rb5 Qe1 e4 Qh4 e3 Qh6 Bd8 Ne7 e2 Rg3 e1B Rc3 Bg3 Nc8+ Kc7 d6+ Kb7 Kd5 c4+ Bc5 Qd3 d7 Be7 d8Q Rg8 Qd6 Nh8 Qdg6 Ra5 Nb5 Bc7 Ra3 c3 Nba7 Bf4 Qe4 Rb5 Bd1 c2 Rc3 c1R Bc2 Bc7 Nbc6 Ka6 Nb8+ Ka5 Kc6 Be5 d5 Bg3 d6 Bf4 Nf2 h1Q d7 Bh2 Ba3 Rf5 d8Q+ Bc7 Qdd4 Bg3 Kd7 Bh2 Ba4 Rc2 Ke8 Rc1 Bd1 Rc2 Bb4+ Ka4 Rc7 Kb3 Rc3+ Ka2 Qdf6 Nf4 Rg3 Ng2 Qe1 Qg1 Qe4 Rc1 Ba4 Rc2 Nh1 Qgb1 Rb3 Rc7 Rc3 Rc4 Bc2 Rg6 Qfg7 Rd6 Qgf6 Rd8+
2n1R2r/bQ3n1R/2r2bN1/2BQqRn1/2B1bBb1/1N1n2b1/1KPBk3/4B2n w - - 0 1 illegal: No possible last move
Q4Nr1/K1BNR2n/3N3k/1N1B4/Q4r2/2bbRr2/5qPb/rnRNq1rr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 b4 f5 d4 Kf7 e4 Kg6 d6 c5 b6 a5 e5 c4 d7 h3 d5 c3 b5 h4 d6 a4 e6 a3 b7 f3 Ke3 a2 Kd4 h2 Kc5 c2 b6 f2 e7 f4 e8R f3 Re2 h3 Ba3 c1Q+ Nc3 Nf6 Qa4 Qe1 Re7 Nc6 b8Q Rg8 b7 Kh6 Nb5 Nb4 Rc1 a1B Bc4 f1R Bd5 f2 Ne2 Nh7 Nec3 Na2 Nd1 Bc3 Bb4 Rg1 Ba5 f1R Bc7 Rf3 Kb6 Ra7 Re3 Qdh4 d8N Bf5 d7 Bd6 Ne6 Bd3 d8N Qhf2 Nf8 Rf1 Rg1 h1R Qa8 Bh2 b8N Ra6+ Kb7 Raf6 Re7 R6f4 Nf7+ Kg7 Bc4 Qe6 Nfd7 Bd2 Nc6 Bg3 Ne3 h2 Ka7 Nc3 Nfd6+ Kh6 Nd8 Qe4 Rc2 Ra1 Rb1 Re1 Rbc1 h1R Bd5 Nb1 Ne6 Qb4 Nef8 Reg1 Re1 Qe4 Rcc1 Bh2 Re2 Bc3 Ree1 Qe6 Re2 Rd4 Nd1 Qee3 Re1 Qed2 R1e2 Rdf4+ R2e3 Qde1
3B1B2/2Bb1kqn/1N1nr3/1Q1RK3/1b2Q2P/Br2r1nQ/n2rr1B1/NR5b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 g5 d4 f3 Ke3 f2 d6 g3 d5 c4 Kd4 a4 b6 c3 b7 a3 e5 f4 e6 g2 e7 f3 d7+ Kf7 b5 g4 b6 c2 d6 g3 Nd2 a2 Qe2 Qc7 d8B Bd7 Nb3 Na6 b8B Nf6 b7 Nh7 Bb2 c1N Na5 Nc5 Qd3 Ra6 Rh2 Ne4 Rb1 a1R Be2 f1B Nb3 f2 Bf3 Na2 Nh3 g1R Ba3 Bg2 Nf4 f1N Nd5 Bh1 Rd2 g2 Nb6 Nfg3 Ke5 Re1 Rdd1 g1R Bg2 Re3 e8Q+ Kg7 Qb5 Rge1 Rd5 R1e2 Be7 Kg8 Qc8 Kf7 Qb4 Rg8 Qd4 Qc3 Bc7 Rg6 b8Q Rf6 Qbb7 Ra4 Qa6 Rb4 Qb5 Rd2 Rf1 Rae1 Na1 R1e2 Rb1 Bf5 d7 Rb3 d8B Bd7 Qd3 Nd6+ Qe4 Qc1 Qc5 Qg1 Qb5 Ngf5 Bf1 Qg7 Bh3 Ng3 Bg2 Bc6 Qh3 Bd7 Bb2 Nc8 Bea3 Bb4 Bd4 Nd6 Bc5 Ne8 Bce7 Nd6 Bf8 Re6+
2n3b1/1NRQ1n1R/n1q5/Kr1B1N2/3P1Rb1/3Qn1r1/n4b2/BrN1kbNN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kf6 e4 Kg5 e5 c5 b6 f5 b7 a5 d6 h5 e6 c4 b5 c3 d3 c2 Kd2 a4 Kc3 h3 Kb4 Kh4 g5 Kg3 b6 Kf2 g6 h2 e7 f3 e8Q h4 g7 a3 Ne2 a2 Qa4 h3 Qa5 f4 Nd2 Bg4 Bb2 c1N Qa7 Qc8 Nb3 Na6+ Ka5 Qc6 b8N Nh6 g8N Nf7 d7 Bc5 d8N Rh5 b7 Rf5 Qc2 Ke1 Ng1 f2 Nh6 f3 Bg2 f1N Nd7 f2 b8R Ne3 Nb7 f1B Ne5 Nd5 Rf8 Nb6 Rc8 Bf2 Rc7 Rg8 d4 Nc8 Qd3 Rgg5 Rb1 a1N Bd5 Nc2 Ba1 Ne3 Rb2 Na2 Nc1 Rf3 Nf5 Rg3 Rb6 Qc2 Rh6 Qc6 Rh7 Rh5 Nd7 Rg5 Ndc5 Rh5 Ne4 Rg5 Nge2 Rh5 Rg1 h1B Rg2 h2 Ng1 Rgh3 Rg3 Bhg2 Rf3 h1R Rf4 Rg3 Qc5 B2f3 Qe7 Bd1 Qd7 Bb3 Nc3 Bc4 N3e2 Nd8 Bf3 Bg8 Be4 Nf7 Bd5 Rgh3 Neg3 Rg5 Ng1e2 Rg1 Nh1 Rhg3 Qe4 Rh5 Qd3 Qe6 Bc6 Bfh3 Nb3 Kf1 Be4 Qc6 Bf3 Nc5 Ng7 Re5 Nf5 Na6+ Qb5 Ke1 Bg2 Kd1 Be4 Re1 Ng1 Rc5 Bd5 Bf1 Nc1 Kd2 Nd3 Rb1 Nc1 Kd1 Rh2 Ke1 Rh7 Rc4 Qb3 Rb4 Qd3 Rb5+
1QNq1n2/R7/3Brbn1/n2Brrk1/rP3Rr1/1bR2R2/bN3Q2/1R1Q2bK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 b4 Kf6 e4 h5 d4 a5 g4 c5 Kg2 f3+ Kh2 a4 b6 c4 b7 h3 d6 f2 d5 h4 d7 a3 d6 c3 Bb5 f1B Ne2 c2 Nd4 a2 Nd2 Ra4 e5+ Kg5 e6 f5 e7 f4 e8Q f3 Bc6 f2 Qee1 Bc4 Nf5 f1R Bf3 Rh5 Ne7 Bb3 Bd5 Rf5 Qf2 Bg7 Rb1 a1N Rf1 Bf6 Kh1 h2 Bb2 c1B Nc4 Ba2 Be5 Nb3 Nb2 Na5 Bg3 Be3 Be5 Nbc6 b8Q Nd4 Bg3 Bb7 Nc8 Ne6 Be5 Nf8 Bg3 Qe8 d8R Ne7 d7 Neg6 Bd6 Qe7 Re8 Qd8 Re7 Ba6 Re4 B6c4 Rf4 Bcb3 Rf3 Rh7 Rf4 Re7 Rf3 Re6 Rf4 Qe7 d8R Ree5 Re8 Qd8 Re7 Bc5 Ra7 Bd4 Qg2 Bg1 R1f3 Re6 Qf2 Rfe5 Kg2 h1R Rc3 Rh3 Rcf3 Rg3+ Kh1 h3 Rc3 h2 Rcf3 Kh4 g5+ Kh5 Rc3+ Rg4 Rcf3 Nh4 g6 Kg5 g7 Nhg6 g8R Rf5 Rh8 Ree5 Rhh3 Re6 Rhg3 Rfe5 Kg2 h1R Rc3 Rh5 Rcf3 Kh4 Kh1 Rhf5 Rc3 Kh5 Rgf3 Kg5
1Qb1r3/4NnqB/2BP1Qb1/2K1N3/1rbRq1Q1/1B1r2R1/nB1B1b2/1k1b1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 d3 h3 g6 h4 d7 c4 e6 c3 g7 a4 e7 f3 e8B a3 b5 a2 b7 c2 b6 f4 Na3 Kc3 d4 h2 d5 h3 Bd3 Qe7 d8Q Nh6 g8B Qe4 Be6 Bc5+ Be3 Kb2 d6 c1R Bb3 Rb1 Beb5 Na6 b8Q Nb4 b7 Re8 Nc2 Nf7 Nd4 Ra3 Nc6 Bd4 Ne7 Bc5 Kf1 f2 Ke2 f1B+ Kf2 f3 Bc6 Bd4 Bdc2 Bc4 Qe2 Re1 Rd1 a1Q Rd2 Bb6 Rd4 Na2 Bd2 Rd1 Bd3 Ra4 Bb1 Rb4 Bd3 Qd5 Ke3 f2 Nf3 f1B Rg1 h1B Rg3 h2 Ne5 Bf3 Bh7 h1B Qg2 B3e2 Qh3 Be4 Qg4 Rg8 Qf8 Bg6 Qg7 Bc5 Qf6 Re8 Qa7 Be6 b8B Bc8 Qb6 Qh1 Ba7 Kb1 Qb8 Qh4 Bc1 Rd2 Bb2 Bf3 Bb6 Bd1 Ba5 Rd3+ Kf4 Rb7 Bac3 Rb4 Bd2 Bh5 Ke4 Bb6 Rd5 Bf2 Rd4 Bg6+ Nf5 Bb5 Kd5 Bc4+ Kc5 Qh1 Ne7 Qe4 Ba3 Qc3 Bb2 Qc1 Bdc3 Qh6 Bd2 Qg7
3rn3/1N2b3/q1NPK1r1/1RQ1B2B/n1rB3r/1B4Br/bR1q1R2/Q1r2n1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 c4 b6 c3 b5 h3 b7 f3 g5 a4 g6 h4 b6 h2 g7 f6 Na3 f2 Be3 c2 Ra2 c1R Rb2 h3 Nf3 Rc3 Qa1 Be6 Ne5 Na6 b8R Rh6 b7 Be7 Nc6 f5+ Kf4 Nf6 g8Q Nc5 Qg5 Rg6 Nb5+ Kd7 Ke5 a3 d6 f4 d5 a2 Qg1 f3 Bd4 Na4 e4 Ne8 Bc4 f1N Bb3 f2 Qg5 Rc5 Rg1 h1R Rg2 Bg8 Kf5 h2 e5 Rc4 Qgc1 Nd2 Qg1 f1R+ Rf2 Rfc1 Qg5 Nc7 Qh5 Nf1 e6+ Ke8 d7+ Kf8 Rg2 Ne8 Nd6 Qa5 d8B Qd2 Ke5 Kg7 Rf2 Bf7 Qf5 Kh6 Bc7 Bg8 Qc2 Kh5 Qc3 Kg4 Qc2 Rb4 Qc5 Kh3 Kf5 Rbc4 Ke5 Rhg1 Kf5 h1R Ke5 Bg5 e7 Rg4 Kf5 Rh4 Ke5 Ng7 e8B Be7 Bf7 Ne8 Kf5 Rg2 Bh5 Kh2 Ke5 Bh7 Ke6 Bb1 Nf5+ Kg1 Bg3 R1h3 Nd6 Kh1 Rd8 Bd3 b8B Bb1 Nb7 Rg1 Bbe5 Rb8 Rd7 Rd8 d6 Rg2 Bbd1 Rg1 Rb5 Rg2 Bb3 Rg1 Qc3 a1Q Qb2 Qa3 Qa1 Ba2 Rc7 Qa5 Rb2 Qa6 Rc8 Qb4 Rc7 Qd2 Rd7 Bg5 Rf7 Be7 Rf2 Rg2 Bgf4 Rg5 Bg3 Rg6+
3q3B/1bP1B1B1/n3K1Q1/1k1B4/N1R3qr/1qn1bqQ1/n2qB3/rNRNq3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 a5 f4 e5 b4 e4 c4 d3 b6 Kc6 c5 a4 b5+ Kd7 b7 a3 b6 Kc6 Bb2 d2 Nh3 a2 Nf2 h3 Be2 e3 Qc2 h2 Nd1 Na6 b8Q d4 b7 d3 g3 Kb5 c6 h6 c7 Rh7 Bh8 Bc5 Qa7 Bd4 b8N Ne7 Nd7 Nd5 f6 h5+ Kf5 h4 g4 h3 g5 Nc3 g6 Rh4 g7 Bb7 g8B Bc5 Rg1 h1Q f7 h2 f8B Qg2 Ke6 h1Q f5 Qg4 Bfg7 Qhf3 Nb6 Bd4 Na4 Bc5 Nf2 d1Q Rg3 Qd2 Nd1 Ba3 Qd4 Bc1 Qf4 Ra7 Rh3 Ra8 Qg3 Ra7 Bf1 e2 Rh2 e1Q+ Be2 Qb4 f6 Qb3+ Ke5 Qg4 f7 Qf2 f8B Qff3 Rg2 Qe1 Nd2 Nc5 Nf2 Nd5 Nb6 Rh7 Be7 Nb4 Bd5 Rh4 Rh2 Qd1 Rh1 Ra8 Nf1 Be3 Nd2 Ra7 Rb1 a1Q+ Rb2 Qac1 Nb1 Ra1 Na4 Nca6 Re1 Qbc4 Rh1 d2 Qg6 Qb3 Rc2 d1N Re1 Qcd3 Rc4 Na2 Rg1 Qdd2 Rh1 Qg5+ Ke6 Ndc3 Rf1 Qcb2 Rd1 Qe1 Rc1 Qbd2 Nd1 Qgg4+
1b6/RP3nb1/R2N2bR/1Rb1R1N1/3B2Qb/qn1B2b1/3kn2K/rq1rN1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 b4+ Kd4 e4 a5 h5 f5 e5 g5 h6 c5 d6 g3 b6 g4 b7 a4 b5 a3 h7 c4 b6 a2 d7 c3 e6 c2 e7 Bg7 e8Q Qe7 d8R+ Nd7 b8R Nh6 b7 Nf7 Ne2+ Kd3 Bb2 c1B Rh5 f3+ Kh1 f2 Bf6 f4 Bc3 f3 Rb5 g2+ Kh2 g1B+ Kh1 g3 Na3 Bh2 Nc4 Ba3 Qa4 Ra6 Ra8 Rd6 Be5 Nc5 Ra7 Nb3 Nf4+ Kc2 d4 Bf5 d5 Bg6 Re1 a1B Nd3 Bb4 Be2 f1N Rc8 f2 Rc6 Bb2 Rca6 Bc1 Qd8 Bg5 Qb6 Rc8 h8R Bh4 Kg2 Re8 Kh3 g2 Rh6 g1B Qc5 Rd7 d6 Ng3 Qd4 Rdd8 d7 Qf8 Qaa1 Bd6 Qe4 f1Q+ Qg2 Qe7 Qd4 Ba3 Qg4 Bf2 Ba1 Qh1 Qf1 Qhe4 Qg1 Bd6 Bf1 Bb8 Re3 Qa3 Be2 Re6 Bf6 Rd6 Ne1+ Kc1 Bc3 Rd2 Bf1 Ra2 Re2 Bc5 Re3 Qf5 Re5 Qb1 Be2 Ra1 Bf1 Re8 d8N Rg8 Ne6 Rd8 Kg2 Rd1 Bd3 Ne2 Ng5 B2g3 Bd4 Bf2 Nd6 Kd2 Kh2 Bfg3+
kq5b/r3B1q1/2Kn4/R1BNr2N/1Qb1Bq2/1n3B2/1B1Q1nPN/nq1q1R2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 Kc7 d4 Kb7 e4 a5 d6 a4 Kd5 a3 b6 f3 d7 c4 e5 h3 e6 a2 e7 f2 e8B c3 b5 f4 Bb2 c2 Nd2 c1Q Qf3 h4 Qd1 f3 Ne4 h2 Bg6 h3 Ng3 Qh6 Qd2 Nc6 Nh5 Bg7 Be2 f1Q Be4 f2 Nf3 Qd1 Rf1 h1Q Nh2 Na5 B2f3 Nf6+ Kd6+ Kb8 b7 Nb3 d5 Ra7 Kc6 Re8 d6 Re5 Qb4 Qf8 d8B Bh8 d7 Qhg7 Be7 Ne8 d8Q Nd6 Qda5 Be6 Qd2 Ra8 Qab4 Ka7 b8N Bc4 Nd7 Qb8 Ndf6 Qb1 Rg1 f1Q Nd5 Qf2 Rc1 Qfg3 Rf1 Qf4 Ng4 h2 b6+ Ka6 b7 Ka7 Bh4 Qg1 Be7 h1N Nh2 Qd1 Rb1 a1N Rc1 Ba6 Rc5 Bc4 Rb5 Nf2 Rc5 Ka6 Rb5 Ra7 Rc5 Qbg8 b8B Qb1 Bc7 Qb8 Bb6 Qh1 Rc1 Qe1 Rb5 Qe2 Rf1 Qed1 Be3 Rd7 Rc5 Ka7 Rb5+ Ka8 Bc5 Rb7 Ra5+ Ra7
B1N1Q1qK/1b2RR1n/q3qN1B/1Bbbbr2/q1r5/4bQ1n/2k1P3/B4BQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 a5 b4 d5+ e6 g5 b6 d3 c3 g3 b7 a4 b5 d2 h5 d4 h6 g2 h7 g4 b6 g3 Ba3 d3 Qc1 Kb3 c4 d1B c5 d2 c6 Qd5+ Kf4 f5 Kg5 f4+ Kg6 f3 c7 f2 e7 Nf6 e8B Bc5 Kg7 Na6 b8Q Nb4 b7 Qe6 Nc3 Rf8 h8B Nh7 Nf3 g1Q Ne5 g2 Nd5 Rf5 Ng6 Nd3 Bb5 Nf4 Nge7 Nh3 Nf6 Ra5 Bb2 a3 Qa8 a2 b8Q Bb7 Qe8 Ra4 c8B Rc4 Bcd7 Bc2 Nc8 d1Q Bdc6 Be4 Qe3+ Qd3 Bc1 Kc2 Qd4 Bf3 Bh6 Bd5 Qa3 Qde4 Qf3 Qh4 Rd1 a1B Rd3 Qhe4 Re3 Qd3 Qdg4 Be5 Qgg3 Qa3 Qg5 Qa4 Re4 Ba6 Ba8 Bab7 Rh2 Qh1 Qgg6 g1B Rg2 Be3 Rgg4 Qg2 Rgf4 Qea6 Qg5 Bc7 Re6 Be5 Kg8 Qg4 B8g7 Qg2 Kh8 Qg3 Re7 Qe6 Bg2 f1Q Qgg6 Qfa1 Bf1 Qg2 Qgg3 Bc5 Qh2 Bge3 Qg1 Bb8 Rf7 Q1a2 Re4 Qea6 Ree7 Qg6 Ne4 Qge6 Ba1 Be5+ Nf6 Qb1 Qeg8 Qe1 Qd8 Qg3 Qe8 Qg8+
b3Qbq1/1kN4R/2n1KQ2/qr4Br/2rB1B1B/1n3r2/RRP5/n2BnNn1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kd3 d5 g4 Kd7 b4 Kc7 f4 e5 b6+ Kb7 b5 a5 g5 h3 g6 e4+ Kd2 a4 f6 h2 f5 d3 Kc3 a3 Kd4 d2 Ke5 d4 f7 h4 g7 e3 f6 h3 Bd3 a2 Na3 e2 Nf3 e1N Be2 Nd7+ Ke6 Ne7 g8Q d3 Bb2 Rb8 Bd4 Rh5 Qg7 Ng2 Qe1 d1N Nd2 Nf2 Nf1 d2 Bd1 Nc6 Qe5 Ne1 Qg6 Be7 f8B Rf5 f7 Rf3 Bg7 Qg8 Qef6 Bf8 Bh6 Nc5+ Kd5 Qg7 Bg5 Nb3 Qe4 Bg4 Qe8 Qg8 Bh4 Bf5 Bg5 Be4+ Ke6 Nfd3 Bh4 Ndc1 Bg5 Ne2 Bh4 Rc8 Bg5 Kb8 b7 Ng1 Bh4 Kc7 b8B+ Kb7 b6 Rc7 Nb5 Rc8 Rc1 a1N Bf4 Rb8 Nc7 Rc8 Be2 d1Q Rb1 Qd3 Rb2 Qc3 Bd1 Qa5 Ra2 Ne2 Rg1 h1R Rg7 h2 Rh7 Rg1 Bhg5 h1R Bh4 Rg7 Bhg5 Rh5 Bh4 Kb8 b7 Rgg3 Bfg5 Ng1 Rb2 Rf5 Ra2 Rc5 Bf4 Ka7 b8R Rf3 Rb6 Rb8 Rb4 Rb5 Bhg5 Nc1 Rbb2 Ncb3 Qe5 Nb4 Qf6 Ba8 Bh4 Kb7 Bhg5 Rc4 Bh4 Be7 Bfg5 Qg7 f8B Nc6 Bf4 Qg6 B8h6 Bf8 B6g5 Qg8+
q1Q1N2Q/1Q1rN2Q/R1bb1r1b/1Bb2N2/1B1n4/q1Q1qP1k/1b3qn1/4R2K w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 c5 d4 e5 g5 h5 b6 a5 b7 a4 g6 c4 g7 c3 d6 Ke6 d5+ Kf5 d7 h3 d6 h4 b5 c2 b6 a3 Bb2 c1B Qa4 Kg4 Ne2 h2 Qd1 h3 Nd2 a2 Ba3 e3 Ne4 Qg5 d8Q Rh7 d7 Bd6 Qf6 Ne7 g8Q Nbc6 d8Q Ra6 b8Q Bd7 b7 Nd5 Qc2 Nd4 Qfe7 Bc6 Qge8 Nf4 Qf6 Ng2+ Kd1 Rd7 N2g3 Qf4 Rg1 h1Q Bb5 h2 Bb4 Kh3 Nf5 Bc5 Ned6 e4 Qfe7 Qg3 Rf1 Qg1 Qc3 h1Q Qdc8 Ba3 Re1 e2+ Kd2 e3+ Kd3 Bb2 Qh8+ Qh4 Ne8 Bd6 Rec1 e1B Qeh7 Bd2 Re1 e2 f3 Bh6 Qa8 Qhf2 b8N Qhh2 Qab7 Qhg3 Rab1 a1Q Rbd1 Qa5 Ra1 Qa3 Ra2 Qg8 Raa1 Bd5 Nc6 Bc5 Nce7 Rf6 Ra2 Bc6 Raa1 Qa8 Ra6 Qb3 Rea1 e1B Rb1 Qh4 Rba1 Bg3 Re1 Bg7 Kd2 Qa3 Kd3 Bgd6 Kd2 Nc2 Ke2 Qe3+ Kf1 Nd4 Qc1 Qeb3 Kg1 Bh6 Kh1 Qe3 Qc3 Qhf2
NnQR2B1/1rB1k3/2B1r1qr/Q1N2r2/R1bK1rqP/6n1/1n1bB1nB/3N4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 h4 a5 e4 d5 c4 g5 b4 a4 h6 f3 c5 g4 b6 f4 b5 d3 c6 a3 c7 d2 h7 d4 b7 d3 b6 a2 e5 Ra6 e6 Qg5 e7 Bh6 Nc3 Nf6 Ne4 Qg6 Be2 Be6 c8B Bc4 Qe1 d1Q Be3 d2 Nh3 Kf7 e8B+ Ke7 Bc6 g3+ Kf1 g2+ Kf2 g1R Be6 Ra5 Bg8 Rf5 Nc5 Qa4 Rd1 a1R Bd4 Rc1 Be5 Rb1 Bc7 Rgg5 Rg1 Rb4 Rg4 Ne4+ Kg1 Re5 Nf2 Re6 Kf1 Rf5 Kg1 Na6 b8N Rb2 Nbd7 Nb8 b7 Qb4 Ra1 d1N Ra4 Rb1 Ra8 Nb2 Nd1 f2+ Kg2 f1N Kf3 Ne3 Nb6 Qa4 Qd2 Ng2 Qa5 Nd6 Kf2 f3 Rd4 Bd2 Ra7 Nb5 Na8 Nc3 Rd8 Rf4 Qb5 Qb4 Ra4 Rf5 Qa5 Ne4+ Kf1 f2 Bh2 Nd7 b8B Rf4 Bc7 Nb8 Bd3 Rf5 Ke2 f1R Bf7 Re8 h8Q R1f4 Qc3 Rh8 Bg8 Bd5 Ba6 Rh6 Qh3 Nc4 Kd3 Nb2+ Kc2 Qd4 Be2 Qdg7 Qhc3 Qg4 Qc4 Q7g6 Qca6 Ba2 Qc8 Bc4 Ra2 Nd3 Ra1 Rb7 Ra4 Bb5 Kb3 Nb2 Kc2 Nc4 Kd3 Nb2+ Kd4 Ba6 Nb6 Bc4 Na8 Ng3+
1qq3qB/B3Q2n/3R1B2/1r2B2q/K1RP1Qn1/1r1B2nq/3b1RNk/3b1n1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 g4 c5 e4 f3 d6 Ke6 d7 f2 g5 f4 b6 a4+ Ka3 f3 b4 h3 b5 h4 b7 h2 b6 c4+ Ka2 c3 e5 Kf5 e6 Kg4 g6 Kg3 g7 h3 e7 a3 Kb3 c2 e8Q a2 Na3 Nh6 g8R+ Ng4 Bg5 c1Q Rg6 Ra5 Qe7 Bh6 Nc4 Qg8 d8B Nd7 Qd2 Ndf6 Bd3 Nh7 Rd6 f1N b8B f2 b7 Rb5+ Ka4 Bf5 Ne3 Qc8 Rc1 a1Q+ Qa2 Bd7 Rc4 Qb1 Bf6 Be8 Qa1 Bh5 Ng2 Bd2 Ba7 Qb2 b8B Qb1 Nf3 Qb2 Rg1 h1Q Nfe1 Kh2 Qc1 Ng3 Bg7 f1N Bbc7 Nfe3 Rf1 Qb1 Rff6 Nef1 Rf2 Kg1 Qb2 Rb3 Ra6 h2 Qba3 Nh6 Qg5 Be2 Qf4 Ng4 Bdf6 Bd1 Bg6 Ng5 Rf3 Rh5 Qe7 Nh7 Bh8 Rb2+ Bc2 Rb8 Nd3 Qb6 Bd6 Qbc7 Nf2 Rb3 Bd3 Rhb5 Bde5 Q7b8 Nh4 Qg2 Rac6 h1Q Rd6 Qgh2 Ng2 Qh5 Qf8 Ne4 Qe7 Q1h3 Nh1 Neg3 Rf2 Kh2
k2r4/1nqQ2N1/Pb1N4/b1n3B1/KNR1qqbR/4Q1Q1/1qBb1Q2/1r2b2Q w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 d4 b5 Kd2 c5 Kc2 Kc7 Kb3 Kb7 h4 g5 a4 e5 f6 e4 f7 g3 h5 g2 h6 e3 f5 g4 h7 e2 d6 e1B a5 g3 f6 Ra6 d5 Nc6 d7 Qc7 d8N+ Ka8 d6 Rb6 a6 Bh6 f8Q Bg4 d7 Bhd2 f7 Nf6 Nh3 g1B Qg8 g2 f8Q Ne4 Nb7+ Nd8 Nf4 Bd4 Qgg7 g1B Nd6 B4c3 Qf3 Bge3 Qff7 Nb7 Ra4 Rd8 h8Q Bg1 Bd3 c4+ Kc2 Bge3 Rh4 Nec5 Ne6 Bed4 Na3 b3+ Kd1 b2 Kc2 b4 Qe3 Rb5 Qge5 Rb6 Ng7 Rb5 Q5g3 Rb6 Qff3 b1Q+ Kd1 b3 Nc2 b2 Nb4 Qa1 Bc2 b1Q Qfe2 Qab2 Qhh6 Rb8 d8Q Rc8 Qd7 Rd8 Qh7 Rb5 Qhe4 Rb6 Qh1 Rb5 Nd3 Ba5 Rb4 c3 Rc4 Na4 Nb4 Bdb6 Bb3 Qf5 Bc2 Nc5 Qef2 Bh6 Bg5 Qe4 Bf6 Bhd2 Bg5 Qa3 Bd3 Qa1+ Kc2 Qa3 Qee3 Qa4+ Kb1 c2+ Kb2 Qb3+ Ka1 Qc3+ Ka2 c1Q Bb1 Qce5 Bc2 Qb1+ Ka3 Q4f4 Bb3 Qbe4 Bc2 Qef6 Nd3 Rb1 Nb4 Ne6 Ka4 Qfd4 Bf6 Qb2 Bg5 Nec5+
q3B3/n1b1BQ2/1r1B3Q/r1r3Rr/QnN5/1B1R1bnb/Nn1P1k2/2K2B1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 Kd6 e4 Ke5 d6 c5 d7 f5 g5 a5 b6 h5 b7 h3 g6 f3 g7 Kf4 e5 Kg3 e6 h4 b5 c4 e7 h2 e8B h3 b6 c3 Bf7 f2+ Ke2 a4 Bg6 a3 Qe1 a2 Kd1 f4 Bh7 c2+ Ke2 Nc6 b8Q Na7 b7 Nf6 g8B Nd5 Ba3 c1N+ Kd1 Nd3 Bd6 N5b4 Qe4 Nb2+ Kc1 Qa5 Bf5 Rh5 Qc7 Rb8 d8B Bg7 Bfe6 Be5 Bgf7 f3 Nc3 Bf4 Rb1 a1R Be8 Rc5 B6f7 Bg4 B8e7 Qa6 Qec6 Raa5 Qa4 Qc6 Bb3 Qd5 Bfc4 f1N Na2 f2 Nf3 Bh5 Ne5 Bf3 Qb6 Kg2 Qa6 Ng3 Q6c6 f1B Rg1+ Kf2 Qd7 Ne4 Rg5 h1R Qf5 h2 Qf7 Ng3 Ra1 Rd8 b8Q Qa8 Qb6 Rb8 Qa6 Rb6 Rb1 Nc2 Bcb5 Bh3+ Bf1 Nb4+ Nc4 Nd1 Rb2 Be5 Rc2 Nb2 Rc3 Bf4 Bb8 Bc7 Rd3 Bd8 Bbd6 Bc7 Kb1 Rg1 Kc1 h1Q Qc8 Rg2 Qce6 Rh2 Qh6 Bg4 Rg7 Rhh5 Rg5 Bh3
1k4qb/1r2b3/5n1B/1rq2nR1/1B1B4/1QNqR1n1/RNnPb2K/BQ1B3q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 c5 g4 Kc7 Kg2 a5 e4 f5 e5 h5 e6 a4 g5 h3+ Kh2 c4 g6 h4 e7 c3 e8R c2 g7 f3 Re5 a3 Qe1 a2 Re3 f4 Ne2 f2 Bb2 c1Q Rg1 f3 Nf4 Ne7 g8Q Bg4 Be2 f1Q Bd1 f2 Nd3 Rh7 Bd4 Nf5 Nc3 Be2 Nb2 Ra5 Rg5 Nd7 b6+ Kb8 d6 Rb5 b7 Nf6 d7 Be7 Qb3 Qg8 d8B Qc2 Ba5 Qd3 Rc1 a1B Rc2 Qdc4 Nd3 Qc5 Ra2 Bh5 Nb2 Qd3 Qg1 Be2 Qe1 Rb6 b5 f1N+ Kg1 Rf7 Bb4 h2+ Kg2 h1N Kg1 Nf1g3 Kh2 h3 Qf1 Nf2 Qg1 Kc7 b8B+ Kc8 Qf1 Rg7 Bf4 N2g4+ Kg1 Rb7 b6 h2+ Kg2 Rh7 Bfe5 Rh5 Qg1 Rc7 b7+ Kb8 Bf4 Ne5 Qf1 Nc4 Qh1 Na3 Qf1 Ka7 b8B+ Kb7 Ba7 Nc2 Bb6 Kb8 Bfe5 Nfe4 Bg7 Rb7 Bh6 Qcc8 Bdg7 Nf6 Bd4 h1Q+ Kf2 Qhd5 Kg1 Qcc5 Bh8 Rh4 Qe1 Re4 B8g7 Re5 Kh2 Bd6 Nba4 Qcc8 Ba7+ Ka8 Nb5 Ne8 Bh8 Be7 Bf6 Bf1 Bf3 Qcc3 Bb6 Kb8 Qeb1 Qc8 Bd1 Be2 Nd6 Qdc6 Nc4 Rb5 Bfc3 Bf6 Bb2 Bh8 Bbg7 Bf6 B6c5 Be7 Ba1 Nf6 Ncb2 Qcd5 Bd4 Qcc5 Nc3 Qh1#
b2r1R2/KQqn1QB1/4BNrb/1r1BQ1n1/krQ3q1/1nQ1b3/2P3b1/2RN4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 Kd3 Kd7 g4 e5 f4 a5 b4 h5 b6 Kc6 b7 Kb5 g5 h3 g6 h2 g7 e4+ Ke2 h4 f6 a4 f5 e3 Kd3 h3 f7 a3 f6 e2 Qe1 a2 Bh6 Qc7 Bg2 Ra6 Nd2 Nd7 b8Q+ Bb7 Ne4 Ka4 b5 Ba8 Rc1 a1N b6 Nb3 Qc3 e1B b7 Bd2 Ne2 Be3 Rhf1 h1B Qe8 h2 b8Q Ra5 Qb7 Rb5 Qe5 Rh7 Bh3 Bg2 Be6 h1R Rf5 Rg1 Qc4+ Bb4 f8Q Rh8 f7 Ngf6 g8B Nh7 Qc3 Ng5 Qfc8 Bf8 Bg7 Rh4 Nf6 Rg4 Nf4 Rh4 Nh3 Re4 Nf2 Rh4 Bh8 Bh6 f8Q Rg4 Nd1 Rh4 Rf1 Rf4 Bg7 Rg4 Ke2 d3+ Ke1 d4 Qf7 d2+ Ke2 Rf4 Kd3 Rh4 Qcc5 Re4 Kc4 d3+ Kd5 Reb4+ Rf3 Qa5 Kc6 Qa7 Qcc3 Qa5 Nf2 d1Q Qcc7 Qe2 Nd1 d2 Bd5 Qa7 Rf5 Qg4 Qc8 Nf8 Kc7 Qc5+ Kb8 Qb6 Q8c5 Qc7+ Ka7 Nd7 Qg6 Rd4 Bge6 Re4 Qf7 Reb4 Nf2 d1R Rf3 Rdd4 Q5c4 Ndc5 Nd1 Rd3 Bc6 Rd8 Bcd5 Nd7+ Qc5 Bh3 Ne4 Qg3 Qg8 Nh7 Rf8 Qf3 Nf6 Rg6 Qf7 Qg4 Qc5d4 Bg2 Qc4 Ng5 Qc3 Rb6 Qdc4 Rb5+
1B2rNb1/5qrn/2KNN2n/1R2QN1N/Qb1b4/1BR2nrr/Pk6/1q3bR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 g4 b5 f4 h5 g5 e5 g6 h3 d3 b3 d4+ Kb4 g7 c5 f6 h4 f7 c4 f5 c3 d6 h2 Kd5 h3 f6 b2 d7 c2 Bh6 c1B Nd2 Kc3 Qg4 b1Q Qe4 b4 Qg4 b3 Ngf3 e4 Rg1 h1R Bf4 e3 Ne4+ Kb2 Nd6 e2 Nh4 e1N Bc4 h2 Nhf5 Qe8 d8N Ra7 Ne6 Nh6 g8N Nd7 Kc6 Be3 d5 Bd4 Qh4 Be7 f8Q Qf7 Qe8 Ba6 Rg3 Bf8 Rc3 Nf3 Qe1 Rg1 Qe5 h1R Qa8 Qe8 f7 Rg3 Nf6 Rhh3 Nh5 Be7 f8N Qf7 Qe8 Nf6 Qa8 Nh7 Qe8 Qd3 Rg1 Qb1 Qd7 Ka1 Qe8 b2 Bb3 Bf1 Qa8 Rd7 Qa4 Rhg8 Ne4 R8g7 d6 Rd8 d7 Re8 d8R Bb4 Rd6 Qc1 Rd5 b1B Ra5 Kb2 Rb5 Bc2 Ned6 Qb1 Bg5 Bcd3 Bd8 Bde2 Bc7 Bc4 Bb8 Qa7 Nd8 Bg8 Nde6 Qf7
4N1qr/bN4N1/k1N2RR1/r3Bnq1/Q1q2b2/3B2Pb/1rN2n1b/1QK1r1Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 c5 e4 Kc7 b4 Kb7 d6 a5 b6 h5 e5 f5 d5 a4 b5 h3 d7 h2 e6 h4 e7 c4 e8Q a3 d6 f3 Bb2 f4 Bd3 a2 Ne2 h3 Qe4+ Nc6 Qg1 c3+ Kd1 c2+ Kc1 f2 Bc4 f1Q+ Kd2 c1B+ Kc2 f3 Nbc3 f2 Bd3 Bf4 Qa4 Ne5 Ne4 Ra5 Nd4 Ng4 Nf6 N8h6 Ne8 Qg5 g3 Nf5 Re1 a1B Re6 Qe1 Rf6 f1Q Bc3 Qe6 Rg6 Nf2 d8N+ Kb8 b7 Ka7 b8N Qg8 d7 Bc5 N8e6 Kb6 Be4 Qc4 Nbc6 Kb7 b6 Ka6 b7 Ba7 d8N Bb2 b8Q Ba3 Qgb1 B3c5 Rf1 h1R N6g7 h2 Bd3 Rg1 Kb2 h1R Qbb4 R1h2 Nc2 Bce3 Be5 Be6 Rd1 Re1 Nb7 Bed4+ Qc3 Re3 Kc1 Nh1 Nf6 Nd6 Kb2 Rf3 Nfe8 Bfe3 Rf1 Bh3 Qe1 Bc1+ Kb1 Bg1 Ne3 Rhf2 Qd4 Bh2 Qed1 Ra2 Nc2 Rb2+ Ka1 Bd2 Qg1 Bc1 Be4 Rc3 Rff6 Nf2 Qdf1 Rf3 Bd3 Bf4 Qe1 Re3 Qef1 Ra2+ Kb1 Nf5 Qc1 Nh4 Qb2 Nf5 Qa1 Rb2+ Kc1 Bb8 Q1a2 Ba7 Qb1 Re1+
1n4QK/2R5/1rBBBnN1/3Rq1b1/2kb4/B2bqPN1/2q1B3/qQnRr1n1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 a5 Ke4 d5+ Ke5 h5 b4 d3 g4 h3 c4 h4 g5 d2 f3 d4 f6 d3 c5 h2 b6 a4 c6 a3 c7 h3 b7 a2 b5 Bf5 c8B Qa5 Na3 Rh6 Qe1 d1N Bd2 Nb2 Bc1 d2 Nc4 d1Q Ne2 Qc2 Bd7 Bd3 Bc6 e6 Qd1 Be7 Ng3 Qb6 Rb1 a1B Be2 Bd8 Rg1 h1Q Qf1 Qa7 b6 h2 Qg2 Qa3 Rd1 Qg1 Bf4 h1N Rbc1 Nf2 Qh1 Nh3 g6+ Kf8 g7+ Kf7 Qg2 Qf2 Qf1 Ng1 Qe1 Rh1 Qb4 Ra6 Qf8+ Kg6 f7 Nf6 Qg8 Qa2 f8B Qe3+ Kd6 e5 Ke6 e4 B4d6 Kg5 Kf7 Qab1 Ne5 Kf4 Qh7 Be7 g8B Qa2+ Kg7 Qd5 Nf7+ Qe5 Nh8 Bd8 Nf1 Be7 Ng6+ Kf5 Bb3 Bd8 Kh8 Be7 Bba4 Ke6 Ng3 Bd8 Bd7+ Kd5 Bac6+ Kc4 Bh3 Ng8+ Qg7 Bg5 Ba3 Nf6 Bfd6 Na4 Qh7 Nc3 Bc8 Na2 Bf5 Nbd7 b8R Bd4 b7 Rb6 Rd8 Nb8 Rd7 Bf4 Rc7 Bg5 Rb1 Nc1 Rb5 Qed2 Bg4 e3 Rd5 Qdc3 Be6 Qa1 Bb2 Rh4 Bba3 Re4 Bf1 e2 Qg8 e1Q Be2 Nbd7 b8Q Re3 Qbc8 Nb8 Qb7 Qec3 Bf1 Re1 Be2 Ra6 Qb1 Rb6 Rf7 Q3d2 Rc7 Qde3
7N/1B2qrQ1/bQ1nr1RN/2r1Rqb1/BK3R2/BRnkP3/R3qnr1/3n4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 a5 b4 h5 g4 f5 e3 c5 g5 c4 b6 h3 g6 f3 g7 f2 b5 f4 b7 h2 b6 h4 Qd3 a4 Qg6+ Nf6 g8B a3 Qe8 f3 Ra2 h3 Qh5 Bh6 Qf7 Ne4+ Kb4 c3 Bb5 f1Q Ba4 c2 Ne2 f2 Nf4 Nc3 Qg7 Ra6 Rg1 h1N Ng6 h2 Nd2 Bg5 Nb3 Rh7 Nh8 Nd7 b8R Nf6 b7 Nfe4 Ra8 Qd7 b8R Qe7 Rg3 Rc6 Ra5 Qe2 Rg4 f1R Rf4 Rg1 Be6 Ba6 Bc8 Rc5 Bb7 Rg2 Bb2 c1Q Rg8 Kc7 d6+ Kb6 d7 Nd6 d8R Qcc2 d5 Nf2 Nd4 h1N Rb8 Nfd1 Nf5 Nhf2 Nh6 Qb1 Qf6 Qbd3 Rg6 Rf7 Qg7 Qf5 Re8 Qd8 Re5 Qf8 Bc1 Qe7 Rb2 a2 Rb3 a1R Ba3 Rc1 Bac6 Nc4 d6 Ra1 d7 Nd6 Bc1 Rb1 Ra2 Rb2 Bb5 Rd2 Ba4 Rdd5 Ree4 Re5 Ba3 Re6 Re5 Bd3 Ba6 Bb5 d8Q+ Kc6 Ree4 Kd5 Qb6 Bc4 Bc8 Ba6 Bb7+ Rc6 Rf3 Nh3 Ka5 Nhf2 Re5+ Kc4 Rf4+ Kd3 Kb4 Rc5
R1N3RQ/bk2q1Q1/1B2b2q/2Q2rn1/n6b/1P3n2/1RnK2rR/1rR2BNb w - - 0 1 illegal: No possible last move
1rB3BR/2q2qBR/n1b5/n3B2n/1kB1Q1q1/nP1Rr3/1br1QK2/1NNr4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 Kd6 d4 a5 b6 h5 b7 c5 b3 f5 g5 f3 g6 h3 g7 c4 Be2 a4 Bb2 f4 Ra2 h2 Kf1 h4 Nc3 a3 Nb1 c3 Qc1 h3 Qd2 c2 Bc1 f2 Qc3 Na6 b8Q+ Qc7 Bb5 Nf6 g8B Bb7 Qc4 Bg7 Qe2 Bc6 Qe8 Rb8 Bb2 Nh5 Bc4 Rh6 Ra1 Re6 Qg6 a2 e5+ Kd7 d6 c1R+ Qd1 Rc2 d5 Re7 Ne2 Bf6 Nc1 Re6 Rg1 h1Q Qe2 h2 Qge4 Qf3 Rg3 Qg4 Kg2 f1N Kf2 h1Q Rd3 f3 Bc3 Ne3 Bb2 Kc8 d7+ Kb7 d8R Kb6 d6 Ka5 d7 Kb4 Rc8 Qhh3 d8B Qg6 Bd4 Qhg4 Bb2 Re7 e6 Qf7 Be5 Re8 e7 Bh8 Bf4 Bc3 Be5 Bb2 Bd5+ Nc4 Bg7 Qcd7 Bc7 Qd8 Bce5 Qc7 Qe3 Na5 Bc4 Qcd7 Qe4 Qc7 Ke3 f2 Rcd8 Rf8 e8B f1R Bd7 Rd1 Bc8 Re8 R8d7 Nf4 Kf2 Nh5+ Rf3 Rd8 Re7 R8d3 Rd7 Re3 Rd3 Qfg6 Rh3 Qgf7+ Bf4 Rdd2 Na3 Nf6 Rh8 Rc3 Rb1 a1N Be5 Nc2 Na2+ Kc5 Rf1 Rd1 Nc1 Kb4 Nb1 Na3 Rfh1 Rc2 R1h7 Nh5+
N1Q1r3/2BR2R1/n5r1/Nqn2B1n/B1Qr1NrP/1b2N1b1/qq1k1n1K/4N3 w - - 0 1 illegal: No possible last move
1B3N1R/6q1/N3Q3/4nBBB/b3QrP1/r1n1bQ2/Rn1kqqKn/3bb2B w - - 0 1 illegal: No possible last move, all moves rejected
1n3Bn1/qNnR4/1q1Br2K/b2bb3/k2B1P1N/B1b1nB1q/6Q1/rQ3R1N w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kf4 c5 Kg5 e5+ Kh5 h3 d4 h2 b4 c4 f4 e3 g4 a4 b6 c3 g5 e2 b5 e1N b7 e4 d6 e3 b6 Kc6 d7 c2 g6 a3 g7 e2 d5+ Kb5 d6 a2 Nf3 Ng2 Ng1 Nf6+ Kh6 Ne3 Bh3 e1B Bg2 Bc3 Ne2 Ka4 Rf1 h1N Bb2 Nfd5 Ng3 Nc7 Nd2 Nf2 Qb1 c1B Ba3 B1b2 Bf3 Ne4 Nh1 Nf6 Rd1 Be7 g8Q Be5 Qg5 Bbc3 Qg2 Re8 Rf1 Nba6 b8B Bb7 Ba7 Nb8 Rd1 Bd5 b7 Ba5 Bd4 Ra7 Kg7 h5 Kh6 h4 Rf1 h3 Rd1 Qc8 d8N h2 d7 Beb4 Rf1 Bc3 Bf8 Nba6 b8B Re6 Nb7 Qe8 d8B Qc6 Bde7 Qb6 Ba3 Ra8 Qb2 Ra7 Rad1 a1Q Qb1 Ra8 Ba7 Nb8 Bdc5 Qa2 Bcd6 Qa1 Ne4 Qa2 Neg3 Qf2 Nf5 Qa2 Nhg3 h1Q+ Nh4 Qh3 Rd3 Qb4 Bd4 Qb6 Nh1 Qf2 Rdd1 Qa7 Qc1 Qb2 Qb1 Qbb6 Rd3 Bc6 Rf2 Qaa6 Bde7 Bab4 Bc1 Kb5 Bdc5 Qa4 Rd7 Bd5 Rf1 Qaa6 Nd8 Qab7 Bed6 Ra1 Bd4 Q7a7 Bb2 Ba5 Bba3+ Ka4 Nb7 Ng8+
kq1bRqQ1/r4b1K/r2R1Q2/2N2QBb/2n1PBn1/Qr1N4/2qb4/3r1Q1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 d4 Kc7 b4 Kb7 g4 h5 b6 a5 b5 a4 d6 c4 d5 h3 d7 h2 g5 c3 g6 a3 d6 a2 g7 c2 Qd4 h4 Qa4 h3 Qa3 Be7 Nc3 Ra7 Na4 Nc6 Bd2 c1B Nc5+ Ka8 Bg2 Nf6 g8Q Na5 Ne2 Nc4 Rd1 Ng4 Bh1 Rh4 Be3 Bd2 Nc1 Rh8 Rb1 a1R N1d3 Rh6 Rbc1 Rb1 Qf7 Qe8 d8Q Rb3 Qd7 Bd8 Qde6 Bb7 d7 Bd5 Qef6 Qe5 Qh7 Bf7 b7+ Kb8 Rb1 Qc3 Qg8 Qc2 Qfg5 Rha6 Rb2 Kc7 b6+ Kc6 b8B Bh5 Bg2 h1R b7 h2 Bd6 Rg1 b8Q h1Q Bc7 Qh4 Bh1 Qh2 Qc8 Bf7 Q5g7 Qh8 Q7f8 Qe5 Bd6+ Kb6 Be7 Qb8 Bg5 Re1 Kg2 f3+ Kh3 f2 Kh4 f1B Bf4 Be2 Ra2 Be6 Kh5 Bd5 Kg6 Bf7+ Kh7 Bf3 Be3 f4 Rb2 Be2 Ra2 f3 Bef4 f2 Raa1 Bc7 d8Q f1Q Qf5 Kc6 Qd4 Bd8 Qg1 Qf2 Qf1 Bf3 Ne6 Kb7 Nec5+ Ka8 Qh6 Nge3 Qhf6 B3h5 Rab1 Ng4 Rb2 Rbb7 Rb6 Qf3 Rd6 Rb3 Rc1 Rd1 Rb1 Rc3 Rb7 Qf2 Re7 Rb3 Re8 Qd4 Qe7 Qf6 Qee6 Qe7 Qef6 Qf8
2k1rQ1R/2r1q2B/1Rn3B1/2bKN1n1/B1P1BQq1/qNNbB3/r7/3q2bb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 Kd7 b4 f5 c4 a5 e4 h5 g4 d3 b6 d2 e5 h4 b5 h3 b7 h2 b6 a4 g6 d4 g5 a3 g7 a2 g6 d3 Ne2 Nc6 b8Q Nf6 g8B Ne4 g7 Bc5 b7 Qe7 Bf7 Re8 g8B Ra7 Qe1 d1Q Qh4 d2 e6+ Kd8 Bg6 Ng5+ Kg2 Qa4 Nbc3 d1Q Nd4 Qa3 Rb1 a1B Be3 f3+ Kg3 f2 Kf4 Ra4 Bd3 f1Q+ Qf2 Qfe2 Rb6 Qh5 Be4 Qh3 Qd6+ Bd7 b8N Kc8 B8h7 Ra8 Rg1 h1B Nb3 Ra7 Qh4 Rc7 Rg3 Qg2 Rh3 Qgg1 Qh6 Qg2 Qf8 Qge2 Nb1 Bad4 Nc3 Qh5 Bd2 Bg1 Be3 Nd4 Ke5 f4 Kd5 f3 Qdf4 f2 Rh2 f1R Nc6 Qhg4 Ne5 Rf2 Rh4 Ra2 Rh5 Qg7 e7 Bf5 Qh8 Rg8 e8B Qe7 Ba4 Re8 Qf8 Nc6+ Nd4 Qdc1 Nb3 Qc2 Bg8 Qb1 Rh8 Qf1 B8h7 Qfc1 Bg2 Bd3 B2e4 Qcd1
3N1Q1K/4Nq2/k5b1/1rQn2RP/1B1b2Qq/1n3RQB/nq1Qr3/b3qN1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 c5 e4 Kc7 b4 Kb6 h4 a5 h5 g5 d6 f5 e5 a4 d5 a3 e6 a2 e7 c4 e8Q f3 Ke3 f2 Kd4 c3 Ke5 f4 d7 c2 d6 g3 Qf7 g2 Rh4 f3 Bd2 c1N Rg4 Ne7 Kf6 Nb3 Qd5 Nbc6 Nc3 Ra5 Nge2 g1Q Ng3 Qh2 Bh3 f1Q Qc4 f2 Nd5+ Kb7 b6 Bg7+ Kf7 Qhg2 b5 Nb4 Rc1 a1B Rc3 Qe1 Nf1 Na2 Rd3 Rg8 Bb4 Re8 Qc3 Qc7 d8Q Qc4 Rgg3 Qh4 d7 g4 Qcc2 Bgb2 Rc3 Qf3+ Kg7 Qfe2 Rg1 g3 Qd4 g2 Qc7+ Ka8 d8N Bf5 Qdd1 Bg6 b7+ Ka7 b6+ Ka6 b8Q Qe6 b7 Rb5 Qc5 Qd7 Qe5 Qc7 Rg3 Bd4 Rg5 Qd7 Qg4 Qf5 Q2c3 Qc2 Qd2 Qb2 Nh2 f1B Rh1 Bc4 Rf1 g1Q Rff5 Qbc1 Nf1 Qb2 Rf8 Qgf2 Kh8 Qf5 Qf6+ Qfe6 b8Q Be2 Qbf4 Bf3 Qfg3 Bh1 Qg7 Nf5 Qf6 Ne3 Qg7 Re7 Rf3 Qd7 Qf6+ Re6 Qg7 Qf7 Ne7 Re5 Qh6 Nd5 Qf8 Re2+
R3K2k/RQ2N3/q1B2n2/q1Pr1b2/n1NN2bb/N5Q1/3B1n2/Nq1bQq1r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Kg4 a5 Kg5 e5+ f6+ Kf7 f4 h5 g4 d5 c4 e4 b4 d3 f5 a4 b6 e3 b5 e2 c5 e1Q b7 d2 b6 a3 Nf3 h3 Nd4 h2 Bg2 h4 Nc2 d4 Bc6 a2 Nba3 Qf1 Qe1 d1B Bd2 Nd7 b8Q d3 b7 h3 Qbg3 Qc7 b8Q Ra6 Qb7 Bh6+ Kh5 Kf8 Kg6 Bg5 f7 Bh4 g5 Qa5 Rg1 h1B Rg2 h2 Re2 Qd8 Re7 Nb6 Rc7 Bd7 Rc8 Bhf3 Ra8 h1Q Ra7 Be4 Ra8 Ke7 f8N Nf6 Ne6 Na4 Ned4 Qa5 Kg7 Rb6 g6 Rb1 Ra7 Rh5 Ra8 Nd5 Kg8 Kf6 Kf8 Bef3 g7 Bg4 Ra7 Be6 Ke8 Bc8 Bb4 d2 Ra8 Qfa6 Ra7 Qhf1 g8N+ Kg5 f6 Kg6 f7 Kg7 f8N+ Kh8 Ne7 Bcf5 Nd7 Nf6+ Kf7 Rc1 Nb6 Rb1 Nbc4 Rc1 Rb1 a1Q Rb2 Qb1 Ra2 Bde2 Bc3 d1N Bd2 Nf2 Na1 Bd1 Kf8 Bc8 Kf7 Rd5 Kf8 Bcf5 Ra8 Nd7+ Ke8 Nf6+ Kf7+ Qd8 Nc8 Qg2 Qb4 Qb7+ Qe7 Nc3 Nab5 Bdf3 Qb2 Qh3 R2a7 Na4 Nba3 Qa6 Qbb7 Rh1 Qe1 Qda5 Kf8 Bd1 Ne7 Qf1 Kf7+ Ng8 Ke8 Nf6+
1n5k/1R3R2/q5P1/1Qb1Rrrn/3N2qr/QbnKQ3/bB6/1NQ1QBbn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 e4 f5 g4 Kf7 b4 Kg7 e5 h5 b6 c4 g5 a4 b5 a3 b7 a2 e6 h3 d6 c3+ Kd3 f3 d5 f4 g6 f2 d7 c2 d6 h2 b6 h4 e7 h3 e8Q f3 Qee2 Rh4 Qe6 Nf6 Qe4 Ra5 Nc3 Rg5 Qb4 Kh8 Nge2 Nh5 Bb2 c1B Qa3 Be3 Rb1 a1Q Nd4 Be7 Rg1 h1B Qc1 h2 Qe1 Qf8 d8R Be6 d7 Bb3 Re8 Bc5 Re5 Qc8 Rg4 Bg2 Rf4 h1N Rf7 Bh3 Qc1 Bhe6 Qe1 Ba2 Qc1 Beb3 d8Q+ Bf8 Qd5 Bc5 Qe4 Qg4 Qe1 Bf4 Q4e3 Bh2 Rd1 Bg1 Nb1 N1g3 Rc1 Ne4 Rc4 Nc3 Rb4 Nd7 Bg2 f1N b8Q+ Nf8 b7 f2 Q3c1 Nfg3 Qe8 f1R b8Q Rff5 Qbb5 Nh1 Qe7 Nd7 Bf1 Bb6 Qec5 Nb8 Qce3 Ne4 Qcc1 Nc3 Qba5 Bc5 Rbb7 Be6 Qb5 Bab3 Qab4 Qa6 Qa4 Ba2 Qa3 Beb3
k4rrB/n2Nq1B1/1P1B2b1/1RN1QRr1/b3r1B1/1R4b1/qnB3Q1/1nb2K2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 c5 d4 Kc7 g4 Kb7 e5 a5 b6 h5 d6 f5 b5 c4 d5 f3 g5 a4 e6 c3 g6 a3 d7 h3 e7 f2+ Ke2 a2 e8B h2 g7 h4 d6 h3 Qa4 f4 Bb2 f3+ Kd1 Rh4 Qd4 Na6 Bg6 Ne7 g8Q Nc6 Be2 f1N Ke1 c2 Nc3 c1B Ne4 Nd2 Rb1 a1Q Qe5 Qe7 d8R Bf5 d7 Nc5 Qgd5 Bg7 Rf8 Na4 d8B Qa2 Ba1 Rg4 Rb3 Nb1 Kf1 f2 Nf3 Rg5 Qd2 Rc8 Nc5+ Ka8 Bc7 Be4 Rf5 Rg8 Bd6 Nb2 Rg1 h1R b7+ Ka7 b8B+ Ka8 b6 h2 Bd1 Na7 Bc2 Bc6 Bh5 Ba4 Bg4 Bh6 Qde2 Bf4 Bbc7 Bg3 Rb5 R5g7 Rb3 Bc1 Bd8 Rg5 Rb5 Qg7 Bf6 Qb7 Bg7 Qe7 Kg2 f1R Rb3 Re1 Qd2 Re4 Kf1 Bh4 Qg2 Be1 Qc3 Bf2 Ne5 Bg3 Ned7 Rf8 Qe3 Rg8 Ke2 Rf8 Rd1 Rf1 Rdd5 h1B Rde5 Rg8 Rd5 Re6 Qe5 Rf4 Bh8 Re4+ Kf1 Rf6 Nd3 Rf7 Rdb5 Rff8 N3c5 Nc4 Bd4 Nb2 Qe2 Bf3 Qg2 Bd1 Qf4 Bf3 Bdg7 Bd1 Qe5 Bf3 Bh3 Bh5 Bg4 Bg6
R3r3/6P1/1qBn1b1N/1Nn5/1BQ1Rb1k/B2RB1rb/q1QBr1bn/3n2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 b4 Kf6 e4 Kg5 g4 f5 d4 h5 e5 a5 b6 c5 d6 c4 d7 h3 b7 h2 d5 a4 d6 a3 e6 c3 e7 h4 e8Q c2 b5 h3 b6 a2 Qd2 Ra3 Qe4 Kh4 g5 Be7 g6 Nh6 g7 Re8 Qc4 Nf7 Ne2 Rg3 Nd4 f3 Nc3 f4 Ba3 c1B Ncb5 Bf6 Qdc2 Na6 b8B Nc5 b7 Qb6 d8R Bd2 d7 Nd6 Re1 a1Q Re4 Qa2 Bg2 Be3+ Kf1 f2 Ba7 Bc1 Rg1 h1R b8B h2 Bc7 Bb7 Ra8 Bc8 d8B Bh3 Be7 Bd2 Ke2 f1N Kf2 Ne3 Rd1 Re1 Bh1 Bc1 Rd3 Bd2 Bf3 h1B Bcd8 B1g2 Nf5+ Kg5 Bf8 Re2+ Kg1 Nd1 Nh6 Kh4 Bc7 Nf7 Be5 Nd6 Bc3 Bc1 Re5 Bd2 Bc6 Bc1 Re4 Bd2 Ng4 f3 Nh6+ Bf4 Bd2 f2+ Kh2 f1N+ Kg1 Qd8 Bab4 Nh2 Bb6 Nb3 Bbe3 Qb6 Ba3 Nf5 Bfc5 Nd6 Bcb4 Nc5
2N1qkN1/rB2RP2/1q5q/Q2qb1KR/Bb6/3n1N1b/r1Nrn2B/1b1N2Q1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 c5 Ke3 a5 Kf4 h5 b4 c4 d4 a4 g4 e6 b6 a3 g5 h3 g6 e3 g7 c3 d6 h4 b7 a2 d5 h2 b5 c2 b6 h3 d7+ Ke7 d6+ Kf7 Bg2 e2 Nc3 e1R Nf3 Qc7 d8Q e5+ Kg5 e4 d7 Nc6 b8N e3 b7 e2 Bf4 c1Q Na6 Nd4 b8N Bb4 Nc6 Nh6 Na7 Ng4 g8B+ Kg7 Bh7 Ne5 Bc2 Qb6 Ba4 Nd3 Qc7 Kf8 d8N Qe3 Ndc6 Rh7 Ne7 Be6 Qc1 Rd1 Nac8 e1Q Ng8 Rd2 Nd1 Ne2 Q7c5+ Re7 Qa5 Rea7 Rb1 a1B Rb2 Bc3 Nb4 Bd7 Nc2 Bb4 Rb3 Be5 Rc3 Qed4 Rc7 Qd5 Bg3 Bf5 Re7 Bg6 Ng1 Bf5 f4 Be6 Nf3 Bd7 Rg1 h1B f5 h2 f6 Bf5 f7 Bh3 Bf1 B1g2 Rh1 Bf5 Qa1 Bgh3 Bg2 Bg6 Rg1 h1Q Bh2 Qbc6 Rf1 Qf2 Re1 Qfb6 Qd4 Qe8 Qg1 Nec1 Re4 Ne2 Rh4 Be4 Rh5 Bg6 Qac5 Bh7 Bc6 Ra2 Qa5 Ra7 Ba4 Ndc1 Nce1 Bb1 Nc2 Nd3 Nh4 Qdd6 Bb7 Qhd5 Nf3 Qh6+
B1b1rQQ1/bN4rN/Qnkn1r2/3q4/1r6/B3R1Qr/1KBr3P/nn1R2Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Kd7 b4 c5 d4 f5 Kd2 a5 Kc2 g5 e5 f3 d6 g3 b6 g4 e6+ Kc6 b7 g2 d7 f4 e7 f2 e8B a4 Bh5 c4 Nc3 a3 Na4 f3 Nh3 g1R Nc5 g3 Bg6 g2 Ng5 c3 Nh7 a2 Ba3 Nh6 Qe2 Bg7 Re1 a1N+ Kb1 c2+ Kb2 c1R Bc2 Qg5 d8Q Rd1 Qf8 Nd7 b8Q Nf7 Qa6+ Nb6 Re3 Qd5 Qg3 Rd2 Nb7 Nd6 Bd3 f1R Be4 f2 b5+ Kd7 Qg5 Rb8 Qg6 Re1 Qg8 f1R Qg5 Rf6 Bf3 Na8 b6 Kc6 Qg6 Ref1 Be4 R1f3 Qf8 Rh3 Bf3 Rc1 Rd1 g1N Qg5 Ne2 Qg1 Nc3 Be4 Nb1 Bg2 Kd7 Qg8 Qf5 d5 Bh6 Qg3 Re8 Qg8 Bg5 Be4 Bh4 Bf3 Bf2 Bg2 Ne4 d6 Kc6 d7 Qd5 d8Q Nd6 Bf3 Ree6 Qdf8 Re8 Nc5 Rb7 Be4 Rg7 b7+ Nb6 b8Q Nb5 Qbg3 Nd6 Rf1 Rcd1 Nb7 Rd4 Bg2 R1d2 Rd1 Rb4+ Kc1 Kc7 Rb3 Nc4 Nd8 Qb5 Ba8 Qd5 Nb7 Ba7 Rf3 Nb6 Re3 Nb3+ Kb2 Kc6 Rf3 Na1+ Rb3 Ra4 Re3 Rb4+
2r4N/1n6/1n2b3/1Q1RrqN1/PQqBRp2/2n1q1rN/K1N2NR1/3Bbk1b w - - 0 1 illegal: No possible last move
1n3q2/2KNQ2B/r2p1B2/3Qb3/q2rqNQ1/b3Pb2/2k1nn1N/Rr1RQ2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 b4 a5 h4 d6 c4 f3 e3 a4 h6 a3 h5 d3 b6 g4 h7 g3 c5 f2 c6 d2 h6 a2 b5 g2 b7 Bg7 b6 Bb2 c7 Ba3 Nh3 g1N Bd3 f1Q Bb2 Ra6 Bf6 Ne2 Qe1 d1Q Nd2 Qf8 Nf3 Qg2 Bb1 Bd7 c8Q Qb3 Qc5 Qa4+ Qd4 Bb5 Bc2 Bc4 Rd1 a1B Qd5+ Kd7 Rg1 Be5 Nf4 Bb5+ Kf5 Bc6 Nh2 Qh1 Qg2 Bf3 Qg4 Kc6 Bb1 Nd7 b8Q Kb5 b7 Kc4 Qa8 Kb3 b8N Qg2 Qd5+ Kb2 Bg5 Ngf6 Bd3 Ne4 Bf6 Rg8 h8Q Nf2 h7 Rg7 Qg8 Rg6 Qh4 Rg4 h8Q Qh1 Q4h7 Rh4 Qg4 Qg2 Bg7 f6 Ke6 f5 Bf6 Qh1 Nh5 f4 Qe7 Qg2 Bh7 Qh1 Bg8 Kc2 Qh6 Be4 Bh7 f3 Nf4 Qg2 Nc6 Nb8 Ra1 Nd3 Qhh5 f2 Qh6 f1R Rd1 Beb2 Ne5 Nf2 Nd7 Be5 Rh1 Bd3 Rg1 Qge4 Qhh5 Qg6 Qh1 Be4 Qhg5 Bf3 Ra1 Bc3 Qd5 Qge4+ Ne5 Qc4 Qd2+ Kb3 Nd3 Rh6 Qf5 Rb1 Rd1 Rh4 Qde1 Qd4 Qg5 Re4 Nf4 Kc2 Qf5 Qa4 Qg4 Nc6 Kd7 Nb8+ Kc7 Qdb4 Ned3 Be5 Nc5 Qd4 Nd7 Qd3 Qa8 Rd4 Qd5 Qe4
b2q1qQ1/1R1P4/rR2BB1Q/4pb1r/k1Bn4/1qQKn3/N1Q1Nn1b/1Q3r2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 h5 g4 c5 f4 a5 d4 a4 b6 c4 g5 e3 f5 a3 d6 Kc6 d5+ Kb5 g6 h3 d7 c3 d6 h4 b7 c2 g7 a2 f6 h2 f7 h3 Kd3 e2 Bg5 c1R Qc2 e1Q Ne2 Nc6 Bf6 Qf2 b8Q+ Qfb6 Rg1 h1Q Qc7 h2 Rg6 Nd4 Q7c3 Ra6 Bh3 e5 Be6 Rh5 Rh6 Be7 f8Q Qf1 Rg6 h1B Bc4+ Kc6 b5+ Kc5 Rh6 Ba8 Rg6 Qb7 b6 Qb8 Be6+ Kb5 b7 Qf4 Rh6 Rf1 Rh7 Nh6 g8B Nf7 Qh6 Ng5 Rg7 Ne4 Bgf7 Nf5 Rh7 Ne3 Bg8 Qg3 Rf7 Qf8 d8Q Qc7 b8Q+ Qb6 Bh8 Bg5 Rb7 Bf4 Bf6 Bd7 Qe8 Qf3 Qeg6 Bh2 Bgf7 Qd8 Qg8 Qf5 Qd4 Ka5 Nbc3 Qb3 Rb1 a1N Bc4 Be6 d7 Qf2 Rb2 Bf5 Bfe6 Qf3 Qc8 Qf2 Qb1 Nac2 Rb6 Qg1 Qc7 Qg7 Qc6 Qgf8 Qc8 Qa4 Na2 Qb3+ Qc3+ Ka4 Rb7 Qba3 R2b6 Nd4 Bcd5 Qab4 Qcc2+ Qb3+ Q8c3 Rh4 Bc4 Rh3 Bg7 Rh5 Bf6 Nf2+
3Q1Nn1/2Qn1b1n/K1q2N2/1Q2Br2/NbBR3Q/krQ1rr2/Ppr1b3/6R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 c5 Kb5 h5 g4 e5 f4 h3 d4 c4 g5 h4 f6 b3 f5 c3 f7 b2 f6 e4 g6 c2 g7 h2 Bh6 c1R Qh5 h3 Be2 e3 Bf3 e2 Qh4 e1R Ne2 Rc2 Nd2 Ra3 Rg1 h1N Nc3 h2 Rd1 Nd7 Be2 Qe8 Bc4 Nf2 Na4 h1B Bf4+ Re5 Bh2 b1R+ Ka5 Be7 f8N b5 f7 b4 Bf4 b3 Ne4+ Kc7 Kb5 Bb4 Nf6 Kd6 Rd2 Ne4 Bg3 Ne7 g8Q Bf3 Qgg5 Be2 Qe3 b2 Qc3 Rh5 Bf4 Bb7 Rdd1 Ba8 Ka6 Rb3 Bg3 Rf5 Bh2 Kc7 d6+ Kc6 Rd3 Re6 Be5 Ng5 Rdd1 Ng8 Rd3 Nb6 d7 Nh7 d8Q Nd7 Rd2 Rbf1 Qb8 Bd6 Qbb4 R1f3 d5+ Kc7 Qb5 Bc6 Bd4 Ree3 Rdd1 Bb4 d6+ Kd8 Be5 Bd5 Rd4 Kc8 Ng6 Be6 f8Q Bf7 Qg7 Qe6 Bg3 Qd5 Nf8 Qc6+ Ka7 Ne5 d7+ Kc7 Rf4 Kd6 d8Q+ Nd7 Bh2 Qc7+ Ka6 Qc5 Qbb8+ Kc6 Rd4 Qd6 Be5 Qe6 Nb6 Kc5 Qbc7+ Qc6 Qgg5 Be6 Qgh5 Bf7 Nd5 Rg5 Bh2 Ba5 Nf6 Rd5 Qd3 Kb4 Qc3+ Ka3 Q5g5 Rd6 Qb5 Rd5 Bf4 Rf5 Be5 Qd5 Na4 Bb4 Rc1 Qe4 Rg1 Qc6+
3n4/2NnNQ2/3kNbq1/rb1r4/N2qn3/1nNRB1r1/pBB1P3/KQ4Rn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 c5 d4 h5 Kd2 f5 Kc2 a5 Kb2 h3 g5 h4 b6 f3 b7 f4 g6 c4 d6 a4 b5 f2 b6 h2 g7 f3 d5 h3 Nc3 Nf6 g8Q Qe8 Ra3 Ra5 Be3 Bg7 Ka1 Nc6 b8B Nd8 b7 Qg6 Bg2 f1N Qb1 f2 Nf3 Ng3 Nd2 f1Q Rg1 h1R Be4 h2 Nb3 Rh3 Bc2 Qf2 Qh7 Nge4 Nc5+ Ke8 d7+ Ke7 Bbf4 Rg3 b8N Ba6 Be5 Bb5 Nba6 Qf4 B5d4 Kd6 Nc7 Bh8 Rb3 a3 Qf7 a2 N5a4 Qe5 Bc1 Bg7 Bde3 Qd4 Bb2 Bh8 Rg2 Rd1 Rg1 h1N Ra3 Nc6 d8N Nd7 Nde6 Bf6 Rb3 Ke5 d6 Nd8 N7d5 Rd2 Nec7 Rd3 Ne7 Rd1 N3d5 Rd2 Rd3 c3 Bd1 c2 Ndc3 c1N Bc2 Nb8 d7 Kd6 Bh6 Nb7 d8N Nd7 Nde6 Nd8 Re3 Qa7 Bg5 Rd5 Rd3 Qd4 Be3 Nb3+
3Q4/r2nbKBR/2q2qR1/3BqN2/1pq1b2Q/2RRrP1n/2B4k/1q2R1nN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 b5 a4 h5 g4 c5 f6 b3 d6 b2 d7 b4 Ke6 Kf4 a5 c4 g5 h3 g6 h4 g7 c3 f7 c2 a6 h2 a7 h3 f3 Kg3 d4 Nc6 d5 Nf6 d6 Bb7 Bh6 c1Q Na3 b1Q Nb5 Qc4+ Qd5 Qe8 d8R Nd7 Bd3 Rh7 g8R+ Rg7 Kf5 e5 Nd4 e4 Bc2 e3 Qe4 Be7 f8R e2 Qh4+ Kg2 Rf6 e1Q Nge2 Rg4 Ng3 Re4 Rf7 Re3 Kg6 Qec3 Rc1 h1Q Bg7 h2 Ra3 Qhe1 Ndf5 Nd4 Nh1 Ne2 Rb3 Qe5 Rc3 Be4 Rd1 Qf8 Re8 Ng1 Rdd3 Nc5 d7 Qec1 d8Q Nd7 Rf6 Qc6 Rh8 Qc4 Rh7 Qh8 Ng3 h1N Re6 Qc6 Kf7 Nf2 Nh1 Nfh3 Rf6 Kh2 Rg6 Rc8 a8B Rc7 Bb7 Qc4+ Bd5 Ra7 Ra6 Bf6 Ree6 Be7 Rg6 Qc6 Raa3 Qf1 Rd1 Qfc4 Re1 Nf6 Rd3 Nd7 Rac3 Qed6 Bf8 Qhe5 Bg7 Qdf6+
2q3qB/rq5q/3bQRb1/3BR1KB/1p2Q2P/q1N5/1k2rnrN/1B1n1B1Q w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Ke3 b5 Kf4 f5 d4 c5 h4 g5+ Kg3 b3 e4 f4+ Kg2 g3 Kf3 g2 Kg4 b4 a4 b2 e6+ Kd6 a5 c4 a6 c3 a7 f3 Be3 c2 Qd3 c1Q Ra5 f2 Nc3 b1Q Nf3 Ne7 Nh2 Nf5 e7 Qa3 e8B Nc6 Bg6 Qc7 Bc1 Qb7 Bb2 Rh7 Qh3 g1Q+ Qg2 Rb8 a8B Rd7 Kh5 g4 Kg5 g3 Bh5 Ne3 e5+ Ke7 d6+ Ke6 Qe4 g2 Rd5 Nd1 Ba1 Rf7 d7 Bd6 d8Q Bd7 Rc5 Be8 Qc8+ Rd7 Ra5 Bg6 Qg8+ Rf7 Ra6 Re8 d5+ Ke7 e6 Ne5 Rb6 Ng4 Rb5 Qd3 Rb6 Qc4 Bb2 Qcc8 Rc6 Kd8 e7+ Kd7 Ra6 Rh7 Qge6+ Kc7 Ra5 Kb6 Ra6+ Kc5 Rb6 Rg8 e8B Rhg7 Ba4 Re8 Bc2 Rh7 Bb1 Rhe7 Be2 f1Q Ra6 Qf7 Bf1 Qh7 Ba1 Be5 d6 Rc7 d7 Bd6 d8Q Rg7 Qe1 Kd4 Qc7 Ree7 Qc6 Rgf7 Bb2 Rf2 Ra5 Re2 Qf3 Rc7 Rd5+ Kc4 Qfe4+ Kb3 Ba1 Rc6 Bb2 Ra6 Ba1 Ra7 Re5+ Qd5 Bb7 Qb6 Bc6 g1R Ba8 Qdc4 Bd5 Qbb7 Bb2 Rg3 Rg1 Qcg8 Rg2 Qgc8 Rf2 Rg2 Rf6 Qcg8 Qf2 Qgc8 Qg1 Qcg8 Qh1 Qgc8 Bc1 Qcg8 Be3 Kb2 Bd4 Qcc8 Bc5 Bc7 Bf8 Bb8 Bg7 Bd6 Bh8 Ngf2+
n1bk1r1R/R2N1R1B/1q4nn/2NP1rq1/rN3BnQ/2bN4/6p1/1NQ2Kn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 g5 b4 c5 e4 a5 h4 f5 e5 g3 h5 a4 d6 a3 d5 f3 h6 g4 b6 f2+ Ke2 a2 e6 f4 e7 c4 b7 c3 b5 c2 b6 g2 h7 g3 Rh5 Na6 b8N Nc7 b7 Nh6 Rf5 Bg7 Nc6 Rf8 b8N Bc3 h8Q Ra4 Nh3 Na8 Nb4 Qb6 N8a6 Kd7 e8N Kd8 d7 g1N+ Kd3 f3 Nc5 Qa5 Bf4 Qb6 Nf6 c1N+ Ke3 Nd3 Qc1 Ne5 Bd3 f1R Nf2 Ng6 Be4 Nh3 Nfd3 f2 Kf3 Ng1+ Kg2 Re1 Qh7 f1N Qh8 Rd1 Qh7 Nh2 Qh8 Ke7 d8R Rf1 Nfd7 N2g4 Qd4 Rf7 Rh8 Rf8 Rf7+ Kd8 Bd6 Rf5 Bf4 Qd6 Qf6+ Qe7 Qh4 Qg5 Na3 N4e5 Kf1 Neg4 Rb1 a1Q Rb2 Rg8 Nb1 Rf8 Ra2 Qb2 Nc2 Qb6 Ncb4 Rf6 Ra1 Ne7 Bh7 Rf5 Ra2 Ng6 Nba6 Re4 Nab4 Rd4 Ra7 Re4 Nc2 Ra4 Ncb4 g2+
r6r/2q4N/B1nq3N/rrkP1n2/QRbbQ2b/1Q3R1K/1BB1p2Q/3r2Q1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d6 Kd7 b4 c5 d4 a5 f4 h5 Kf2 e5 g4 c4 Kg2 c3 f5 e3 d5 e4 b6 e2 b7 e1B f6 c2 f7 e3 g5 a4 b5 a3 b6 a2 g6 Ra7 g7 Ba5 Rh3 Nh6 g8B Bg7 f8Q Bb2 Qff3 Ra6 Bh7 Bf6 Nc3 Ra8 Rb1 a1R Nb5 Bac3 Nd4 R1a5 Nf5 Bcd4 Ba3 c1R Qa4+ Rc6 Rg3 Qc7 Nh3 Bg5 Rb5 Rc5 Qe2 Bgf6 Rf3 Nc6 Ng5 h3+ Kh2 h4 b8Q Qa7 Rb3 Ba6 b7 Qb6 Bg6 Qc7 Nh7 Bd3 Qd2 Bg5 Qe1 Bb5 Qg8 Bgf6 b8Q Bd8 Bd3 e2 Qb7 Be7 Qb1 Bef6 Bb2 Bg5 Kh1 h2 Kg2 h1R Qb6 h3+ Kg3 h2 Kh3 Nf7 Nh6 Rd1 Bge4 Bh4 Qg1 Ba6 Qbb4 Bb5 Qba3 Ba6 Rb4 Bb5 Q3b3 h1Q+ Kg4 Qh2 Bf5+ Kd8 d7 Ke7 Bc4 Qhe5 Kh3 Kd6 Bcd3 Qe6 d8Q+ Qed7 Qe8 Qe7 Bc8 Bc4 Ba6 Rcb5 Qeg8 Qe5 Q8g2 Kc5 Q2h2 Nd6 Be4 Nf5 Q1d3 Bg3 Qde3 Qed6 Bc2 Be1 Qe4 Bh4
1nnQ1Q2/Q2rbN1B/RbRb1qq1/R1p1b2b/2QBr3/7K/2P1Q3/1k3N1n w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 g4 hxg4 d4 e5 dxe5 fxe4 f4 Ke7 Kf2 Ke6 Kg3 a5 h4 d5 b4 g5 h5 a4 h6 a3 h7 e3 b6 d4 b7 Kd5 f5 e2 e6 Kc4 f6 d3 e7 e1B+ Kg2 g3 e8Q a2 b5 g4 f7 Ne7 b6 Ra7 Ne2 Bb4 Qa4 d2 Nbc3 c6 Qe1 d1N Nb5 Nf2 Rh6 Nh1 Bb2 Rg8 Qa6 Bd6 h8Q Rg5 Bd4 Re5 Qh7 Re4 Qd2 Bf5 Qe3 Bg6 Qf2 Nd7 b8Q Nc8 b7 Bfe7 f8Q Bh5 Qa8 Qb6 b8R Qd8 Rb7 Nb8 Rb6 Rd7 Q6a7 Kb4 Ra6 Kc4 Qhg8+ Kb4 Kg1 g2 Ng3 Qb6 Kh2 g1B+ Kg2 Bh2 Bd3 c5 Re1 a1B Nf1 g3 Kh3 g2 Qe2 g1Q Qgd5 Bc7 Nd6 Qg6 Nf7 Bhd6 Qd8 Bc3 Rea1 Qc6 R1a5 Bb6 Be3 Bce5 Bd4 Qa4 Qc4+ Ka3 Bg1 Kb2 Bd4+ Kb1 Qf8 Qf6 Qd8 Rg4 Bh7 Qg6 Qaf3 Qa1 Qf6 Re4 Qfh8 Qg5 Rf6 Qg6 Qhf8 Bdc7 Rc6 B5d6 Be3 Qaf6 Bf2 Be5 Bd4 Bcd6
RN5Q/BR2bb1K/2r4B/kP2rB2/1NQ2Bpn/1q2Q2b/bB3nq1/2nb4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 a5 b4 g5 h4 d5 c4 Kd7 e4 Kc7 c5 a4 c6 Kb6 h6 a3 h5 a2 c7 d3 e5 d2 e6 d4 h7 d3 e7 Qe8 h6 Na6 Qb3 d1N Na3 d2 Qe3+ Nc5 Nc2 Nf2 Bh3 d1B+ Ne2 Qf7 e8Q Be6 c8Q Ne7 Rg1 Rg8 h8B Ra5 h7 Ng6 Bd4 Be7 h8B Rf8 Rb1 a1Q Bdg7 Qa2 Bh6 Qb3 Bhb2 Qg7 Re1 Rf7 Qh8 Rf6 Qcg8 Bf7 Rg1 Be8 Qc4 Rc6 Ra1 Bf7 Ra3 Kb7 b6 Ncd3 Rh1 Rb5 Ra8 Re5 b5 Qg8 Bd2 Nc1 Nb4 Qg7 Kg2 f3+ Kg3 Nh4 Nd4 Rcc5 Ndc6 f4+ Kh2 Qg8 Nb8 Rc6 Bf5 g4 Re1 Qd8 Rf1 Qd5 Rh1 Nfd3 Re1 f2 Re2 f3 Kg3 f1B Rf2 Ne1 Kf4 Bh3 Rh2 f2 Rh1 Bf8 Kg5 f1B Rh2 Bd6 Kf6 Bfg2 Kg7 Ned3 Kh7 Bh1 Rf2 Qg2 Rf4 Bf8 Rd4 Nf2 Rd7+ Kc8 Rda7+ Kd8 b7 Kc7 Qec3 Kb6 Bdf4 Be7 Qe3+ Bc5 N8a6 Ka5 b8B Be7 Rb7 Qg3 Ba7 Bhd5 Nb8 Qg2 Qed3 Be4 Qg3 Bb1 Qe3 Ba2
1b1Q3q/4q2b/NBp1B2N/q3R1Nq/5q2/rBrQn3/n2B2Pk/2BKRb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 e4 Kf6 b4 Kg5 b6 f5 e5 h5 e6 a5 b7 c6 e7 a4 e8B a3 d6 h3 d5 Kh4 d7 Kg3 d6 h4 b5 a2 b6 h2 Bc4 h3 Nf3 Na6 b8B Nh6 b7 Qe7+ Be2 Nb4 d8Q Ng4 d7 Ra3 Rg1 h1Q Qd3 h2 Ne5+ f3 Rf1 f4 Nd2 Rh3 Rb1 a1Q Nf7 Na2 Kd1 Qc3 Ra1 Qa5 Nh6 Bg7 Re1 Be5 Ba7 Bb8 Be3 f2 Nf3 f1Q Ng5 f3 Bf7 f2 Be6 Rc3 Bf3 Ra3 Bed2 Rc3 Qd5 Qc4 Rb1 f1B Qd3 Qf4 Rb5 Ra3 Rbe5 Rc3 Qc7 Ra3 d8B Rc3 Bg8 Bf5 Bb3 Bh7 Qcd6 Qg1 Qc7 h1Q Bfd5+ Kh2 Be6 Qgd4 Qc8 Re3 Bb6 Qdd8 Qcd7 Qh8 Q7d4 Kg1 Qd8 Qh5 Bbd5 Kh2 Bb3 Bd6 b8N Rh3 Na6 Bb8 Ba4 Ra3 Bab3 Re3 Q3d4 Rc3 Qd3 Ne3#
2r1rR2/q1Qb1r2/Bbp1n1Q1/2R3n1/PN1Qr1R1/R1R1B1b1/Kr3Nk1/7q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 d4 Kf6 Kd2 b5 Kc2 h5 Kb2 e5 a4 c6 g4 b3 d6 h3 d7 h2 d5 h4 d6 b4 Be3 h3 Na3 e4 Nb1 Qb6 d8R Nh6 d7 Nf7 Na3 Qa7 Ra2 Na6 Bb5 Bc5 Nc2 Nc7 Ra3 Re8 Ba6 Bb6 Qd2 Ne6 g5+ Kg7 g6 Kf6 Ka1 b2+ Ka2 Rb8 g7 b1R g8R Rf1 Bc5 e3 Rg4 e2 Qd6 e1B Qc7 Bg3 Bd4+ Ke7 f6+ Kf8 f5 Rf2 Be3 Nfg5 f7 Kg7 f6+ Kg6 f8Q Kf5 Bf4 Ke4 f7 Re2 Qg8 b3+ Kb2 Rf2 f8R Rf3 Kb1 b2 Ka2 b1R Nb4 Rff1 Bc1+ Rf4 Be3 Rf1 Qf7 Ra8 Ne2 Kf3 Qg6 Rb1 Rd1 h1R Rdd3 Rhf1 Nc3 h2 Ne4 h1Q Rdc3 Kg2 Rc5 R1f3 Nf2 Re4 Rcc3 Re7 Rf5 Rb3 Rb5 Rff7 Rf8 Re8 d8Q Rb8 Qd1 Bd7 Rbc5 Rbc8 Qd4 Rb2+
3k1NrK/1n1b1qNP/1rq2rRN/1Q6/1bb2N1B/N3p3/1QB1Q2r/2nR1r2 w - - 0 1 illegal: No possible last move
rn1R3R/5BbP/2QQ1q2/Qb1KNQ2/rp5B/k4N2/bn1q1Q2/1b1b1R1r w - - 0 1 illegal: No possible last move
2rQRKbk/2Brp3/4qb1n/3b1b2/2RQ2P1/1n2r1qB/BN1Nb3/1Q2Q2Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kg7 Kc4 a5 Kd5 h5 c4 a4 g4 a3 b4 d3 f4 h3 c5 h4 f6+ Kh7 f7 a2 f5 d2 f6 d6 b6 h2 b7 h3 b5 Ra4 c6 Bg7 f8Q Rf4 f7 Bb2 b6 Rc4 c7 Rc6 Qe1 d1R+ Nd2 Na6 b8Q Rc3 b7 Qd7 Nf3 Nh6 Qa8 Re3 b8Q Bf6 Qd8 Nc5 f8Q Nb3 Ne5 Qe6+ Kc6 Rg8 Nec4 Kh8 Nb2 d5+ Qd6 d4 Qd8 d3 Qb4 Qe5 Qdd4 Bf5 c8B Qg3 Be6 Rf8 Rg1 h1B+ Kd7 h2 Bh3 Bd5 Rb1 Bc4 Qh1 a1Q Rf1 Qa5 Rf4 Qe5 Ra1 Qe4 Ra8 Bd5 Qa3 Re8 Qa1 Rg8 Qb1 Re8 Qhf1 h1B Rc8 Qe5 Qg1 Bhe4 Qh1 Bh7 Rb8 Bg8 Ra8 Rf8 Rb8 Bf5 Rc8 Rf7 Ke8 Rh7 Bf7 Qe6 Kf8 Rg7 Ne4 Rh7 Bd2 Rg7 Ba5 d2 Bc7 Rg5 Rb8 Rc1 Ra8 d1B Nd2 Rcc3 Qd6 B1f3 Re8 Be2 Qd8 Rg6 Qa4 Rc6 Rc4 Rd6 Qa7 Rd7 Qd4 Qb6 Nf3 Be5 Qa5 Ba8 Rc5 Nd2 Bb8 Rc6 Ba2 Rc8 Rc4 Qe6 Bc7 Nb3 Qae1 Bf6 Nd2 Bd5
qb4k1/2qP4/1Qr1q3/b2RNB1B/n3rNq1/1KpQ4/1B3n2/1bR1BNBq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 h5 g4 a4 d6 a3 d7 a2 b6 f3 b7 f4 g5 f2 b5 h3 b6 h4 e5 c4 d5 f3 d6 h2 Nh3 Qc7 d8B Ra4 Nd2 Nd7 b8N Nh6 b7 Kg8 g6 Ng4 g7 Rh6 e6 Nb6 e7 Bf5 e8B Bb1 d7 Bd6 Bd3 f1Q Nf4 f2 Bf5 h3 Bh4 Qg2 Nc6 f1Q b8B Qfe2 Ne5 Nf2 Ba7 Qgg4 Bh5 Bb4+ Kb2 Rc6 Bg3 Qe4 Nf1 Ba5 Qd3 Qd5 Rg1 h1Q Bh4 h2 Rg3 Qh3 Rg5 Qg4 Bg3 Rb4+ Kc3 Qhf3 Bb2 h1Q Bh4 Qe6 Bg3 Bc2 Rc1 a1B Bh4 Bb1 Bg3 Ba2 Kc2 Na4 Bh4 Nh3 Be1 Qe4 Bg1 Nf2 Ba3 Bd4 Bb2 c3 Nh3 Rbc4 Nf4 Bb1+ Kb3 Qed6 Rg6 Qe7 Rd6 Qe6 Rd5 Ba7 Nf3 Rd6 Re5 Qa8 Rd5 Re4 Qd4 Rc6 Qb6 Qgg6 Ne5 Kh7 g8Q+ Kh6 Bhg4 Bb8 Bh5 Qgg2 Qg4 Qgh3 Qg3 Qg4 Qf3 Kg7 Qd3 Kg8
1k1r4/1qnPB1RB/4b2p/1r1b2R1/B1Br1bbn/2B1q3/Q2N1bNQ/2Q3K1 w - - 0 1 illegal: No possible last move, all moves rejected
4bBb1/1rP3nn/kN3b2/2q2pR1/2rN1bbN/1NqBQ1nR/3KB3/4N1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 g5 b4 d5 c4 Kd7 e4 Kc7 h6 Kb7 c5 f5 b6 a5 h5 a4 b5 f3 e5 a3 e6 d3 e7 d2+ Kf2 a2 Ke3 f2 e8B g4 h7 g3 h6 g2 Rh3 Bd6 Bh5 Nf6 Bd3 Bd7 Nf3 g1B Ne1 Ne8 Ba3 Ra4 Bhe2 Ng7 Qb3 d1B Kd2 Rf8 h8N d4 h7 Rf7 Ng6 Qc7 h8Q Be8 Nh4 Nd7 Qg8 Nf8 Qe6 Bg3 Qe3 Bb3 Bb4 Bf4 c6+ Kc8 Bc5 Nh7 Bf8 Rc4 b7+ Kb8 Bd1 Ka7 b8N Qd6 Nd7 Qc5 b6+ Ka6 b7 Re7 Nb6 f1N+ Ke2 Ng3+ Kd2 Bh2 Bg4 Bg5 Bge2 Bf6 b8N+ Ka5 N8d7 Ka6 Na3 Rf7 Rc1 a1Q Nb5 Ba2 Bc2 d3 Nd4 N3h5 Bb1 Bf4 Rc3 Bb3 Rg3 Re7 Rg5 Ng3 Bc2 Re4 c7 Rb4 Nc4 Rb7 Na5 Bd5 Nab3 Be6 Ndf3 Rc4 Nfd4 B6f7 Nb6 Bd5 Bb1 Be6 Kc1 d2+ Kc2 d1B+ Kd2 B6f7 Bbd3 Be6 Qf7 Bd5 Qh5 Bg8 Qg4 Nh1 Qg1 Ng3 Bf1 Bf3 Bfe2 Bg4 Be4 B4e5 Qef2 N3h5 Rh3 Bf4+ Qe3 Ng3 B4d3 Qc3+
2NB4/P2NK1BR/qN4b1/2p1Nk2/QnQ1bn1n/6r1/R1Nn3q/1B2b1nr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 c5 g4 b5 a4 h5 f4 e5 d4 b3 d6 b2 Kd5 e4 a5 e3 d7 h3 a6 e2 a7 e1N Nf3 h4 Qa4 h2 Ra2 h3 Ne5 b4 Na3 b1B Nc2 b3 Bd3 Qe7 d8N b2 Ndf7 Nf3 Nd6 Nh4 Be4 Bd7 Nc8 Na6 Bd2 Qd8 Bc3 Bg7 Kd6 Qa5 d5 Ne7 Bd4 Neg6 Bc3 Bh6 g5+ Kg7 Bd3 Bc6 f6+ Kh7 f7 Nb4 f5 Nf4 Bd4 Qa6 f8N+ Kg7 g6 Kf6 g7 Rg8 Rd1 h1Q Nfd7+ Kg5 f6 h2 f7 Rh8 Ne7 Rag8 f8N Qg2 Nc8 h1N Ndb6 Nf2 Bg6 Qh2 Ke7 N2h3 d6 Be4 Rh1 Ng1 d7 Rh7 d8B Rhh8 Bf7 Kf5 Nfd7 Rh7 Bc4 Rhh8 Bd3 Rh7 Na3 Bc2 Bc3 b1N Bd4 Nd2 Bb2 Bd1 Bb1 Bh5 Nc2 Bg6 Bc3 Ne6 Bd4 Bf4 Bb2 Bg3 Bc3 Be1 Bb2 Rf8 Ba1 Rhh8 g8Q Nf4 Qc4 Rh5 Ng4 Rg5 Bg7 Rh8 Nge5 Rg3 Kd6 Qe2 Rh3 Qh2 Ke7 Nhf3 Rh6 Nh4 Rh7 Qe2 Nc6 Nhg2 Nce5 Qf2 Rh4 Qe2 Rg4 Rh1 Rh4 Qf2 Rh8 Nh4 Rh7 Qh2
1RNQQ1nB/Pnq1q1p1/1B6/1q5Q/2B2r2/2rbR3/2qBr1kb/N1qBK3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 a4 Kd6 d4 b5 e4 f5 h6 c5 h7 c4 a5 c3 h5 f3 h6 b3 a6 c2 a7 f4 Bd3 b4 Nh3 b2 Bc4 b3 Bd2 c1Q Na3 b1Q Nf2 b2 Nc2 Qe7 Ra3 Bf5 Na1 Na6 Re3 Rc8 Rh2 Nc5 e5+ Kc7 d6+ Kc6 d7 Qbc2 d8Q b1Q e6 Bd3 Rh1 Qb6 Ne4 Nb7 Nd6 Qbc7 d5+ Kc5 Rh2 Kd4 Rhe2 Qg5 e7 f2+ Kf1 Qe5 e8B Qg5 Bh5 Qge7 Ne4 Ke5 d6 Kf5 d7 Ke5 Kg2 f1R Nd6+ Kd4 Qe8 f3+ Kg3 f2 d8B Rg1+ Kf3 Rg2 Qh1 f1Q+ Rf2 Rb8 Nc8 Rg4 Qh4 Rf4+ Kg3 Ra8 Bd1 Qe2 Qh1 Qh5 Rff3 Qb5 Kf2 Rb8 Qhh5 Ra8 Re1 Rb8 Rh1 Ke4 Ke1 Ra8 Rg3 Rf2 Re3+ Kf4 Re6+ Kg3 Re3+ Kg2 Rf1 Qcc6 Bb6 Qcc7 Nd6 Rd8 Nc8 Rd4 Rh1 Rdf4 Rh3 Be2 Rb3 Bd3+ Re3 Qed7 Rb4 Bd6 Rb2 Qe7 Rb1 Nf6 Rb3 Rf8 h8Q Ng8 h7 R4f3 Rb2 Bh2 Qd8 R8f4 Rb4 Nf6 Qh8e8 Ng8 h8B Be2 Re6 Rc3 Re3 Bd3 Re2 Nc5 Re3 Qbc6 Ba5 Q6a4 Rb7 Qb5 Rb8 Nb7 Bb6 Re2+
N1B1K2k/p3Qr1P/3b1nB1/1Rbrb1Q1/1B4q1/2NQb2r/1nB3b1/R1q1B3 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Ke3 e5 f4 d5 b4 g5 c4 Kg7 h4 g3 f5 g2 c6 g4 f6+ Kh7 b6 g3 b5 Bb7 h5 Na6 c7 Nc5 c8B Bg7 f7 Ba6 f8B Qh4 h6 Ne7 b7 Ng6 b8Q Kg8 b6 Bb7 Nh3 Nd7 c5 Nf6 c6 Nf4 c7 Qg4 Nc3 Nd3 Nf4 Nb2 Bd2 Kh7 Be1 g1B+ Bf2 g2 Rh5 Bh2 Bd3 g1B Ne6 Bg3 Bb4 d4+ Kd2 Rf8 Be1 Rf7 Bc2 d3 Rf5 Bd5 b7 Kh8 h7 Bc5 Qe2 Bgf8 Qe3 Bfd6 Qd4 Bh2 Ke3 d2 Rh5 d1R Bd7+ Bf8 c8B Bfd6 Qc7 Rb8 Be8 Rd2 Qe7 Rd3+ Kf2 Rh3 Nc7 Bf4 Na8 e3+ Kf1 e2+ Kf2 Bg3+ Ke3 Bg2 Rf5 e4 Rg5 Rg7 Bg6 Rf7 Rh5 Bb6 Rb5 Bbc5 Be6 Rbf8 b8Q Rd8 Bc8 Bde5 Qb6 Rd5 Qbe6 Bed6 Qf5 Bde5 Qg5 Bed6 Kd2 Bge5 Qd3 e3+ Kc1 Rh1 Kb1 Rh3 Ka2 Qd4 Kb3 Qg4 Bh4 e1B Bg3 Nc4 Ka4 Bd2 Be1 Nb2+ Ka5 e2 Ka6 Bg3 Kb7 Bde3 Kc6 Bge5 Qdf5 Nh5 Kd7 Nf6+ Kd8 Rd4 Qd3 Rd5 Bh4 e1Q Bg3 Ne4 Ke8 Qc1 Be1 Nf6+
1n2B2K/q1R1b2R/r3k3/1B3qB1/1n3r2/2br2Q1/NqpNB2P/1Qrb1R1B w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Ke7 Kg3 c5 Kf4 b5 Kg5 f5 Kg6 g3 e4 f4 a4 f3 d4 f2 d6+ Ke6 a5 b3 a6 c4 d7 b4 a7 b2 Nf3 g2 Nc3 b1Q Be2 g1Q+ Bg5 f1R Na2 b3 Nd2 Qb2 Rc1 Qa5 d8R c3 Rd7 Rf4 Rc7 Qg4 Rf1 Nf6 Rc2 Ba3 Qb1 Rh3 Rf7 Be7 d5+ Kd7 d6 Nd5 Rcc1 Rd3 Kh7 Nb4 Kh8 Ke6 d7 Qf5 d8Q Bd7 Qc7 Ba4 Rc2 g6 Rh7 Qb6 Bh4 g5 Rcc1 g4 Bg5 g3 Rc2 N8a6+ Qb8 g2 Qg8+ Kd7 e6+ Kd6 Rcc1 g1B e5+ Kd5 Rc2 Nb8 Rcc1 Bgc5 Qg7 Bf6 e7 Ke6 e8B Bce7 Bc6 Qa1 Be8 b2 Bb5 Bd1 Rc2 Kd5 e6 Qc7 Qc1 b1R Qb2 Rc1 Qb1 Bd8 e7 Ke6 e8B Bde7 Rb2 c2 Rb3 Qd7 Rc3 Qb2 Rc7 Bc3 Ba4 N8a6 Bb5 Rc8 a8B Nb8 Bb7 Qd4 Bh1 Qa7 Bf6 Rcd8 Qg3 R8d4 Bg5 Rd6+ Rg7 Ke5 Rf7 Ra6 Rh7 Ke6+
KQ5n/N1nbk2N/2r5/1B4nR/QbQ1n1q1/1N1p1PQq/R1Q1rb2/B6r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 a5 Ke4 h5 Kd5 h3 g4 e4 b4 d3 c4 h2 c5 a4 c6 d2 g5 h4 g6 h3 c7 e3 b6 a3 f6 a2 b5 e2 b7 e1N b6 Nf3 f7+ Ke7 g7 Ng5 f3 Nh6 g8Q Na6 Qc2 d1N b8Q Nf2 b7 Nfe4 Nd2 d6 Kc6 d5 Kb6 d4 Bb5 d3 Nb3 Qd7 Bb2 Qg4 Bd4 Bd7 c8N+ Ke6 Bb2 Bb4 f8Q+ Nhf7 Na7 Rh6 Qg3 Re8 b8Q Nc7 Kb7 Rg6 Qfg7 Ke7 Qd4 Nh8 Qgc4 Rc6 Bc3 Bd6 Qa4 Bc5 Qdc4 Bf2 Rd1 a1B Rd2 Bb2 Be5 Ba3 Ba1 Na6 Ka8 Bd6 Ne2 Bb4 Nc3 Nc7+ Kb7 Kf8 Nd5 Kf7 Nf6+ Ke7 Rf1 h1Q Nh7 Qg2 Rh1 h2 Re2 Na6 Ka8 Q2h3 Rb1 h1R Rb2 Re6 Ra2 Rc8 Re1 Rcc6 Re2 Nf6 Re1 Re2 Rg1 Nfe4 Rg2 Qf5 Rh2 Qhg4 Rh6 Qh3 Rh4 Qfg4 Rh5 Nc7+
QQ1b1qQ1/r2q3Q/1b3Nb1/1B4B1/1r1b1RnR/1PrqQ1N1/1p3nR1/k5K1 w - - 0 1 illegal: No proof kernel
3b1N1K/1R2rk2/rQ4n1/Q5B1/3QRnbq/1pPb2NN/n1QQ1r2/r4B1q w - - 0 1 illegal: No possible last move
QK1N2rk/1Q4b1/Rn1NB1r1/2r3q1/2q1P1Q1/rb4qn/p2Bn2Q/Q1BR4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 Ke5 f5 b4 Kf7 e4 Kg7 d4 h3 g4 f3 g5 a4 g6 h2 b6 c4 b7 f2 d6 a3 d7 h4 b5 h3 d5 c3 d6 a2 b6 c2 Nd2 f4 Ngf3 Nf6 Nc4 Ra3 Ng5 f3 Nf7 Nd5 Bg2 Qh4 d8Q f1N d7 f2 Ncd6 Ng3 Rf1 Kg8 g7 h1R Bd2 h2 Bh3 c1Q Be6 Nf4 Rb1 Na6 b8Q Rg1 b7 h1R Rb6 Nb4 Ra6 Nh3 Qa8 Qc7 b8Q Ne2 Qbb7 Nd5 Qa1 Nb6 Rd1 f1Q Qg5 Rg4 Qf4 Rg6 d8B Qfe1 Bg5 Qc4 Bh6 Qeg3 Nd8+ Kh7 Bg5 Rg8 Bh6 Bd7 Bg5 Ba4 Bc1 Qf3 Qh2 Bb3 Bgd2 Qg5+ Bf5 Rf1 Ra4 Qgg4 Ra5 Rh8 Be6 Rg5+ Nf5 Rg1 Ra6 Qh5 Bd5 Qfc3+ Ke6 R1g4 Nd6 Qg3 g8Q+ Kh6 Qgf7 Rg8 Qf4 Bg7 Ke7 Kh7 Be6 Re5 Qf3 Rg6 Qg4 Nc8+ Kd7 Kh8 Qab8 Qg5 Q8a8 Qa4+ Kc7 Qc4+ Kb8 Nb6 Qh1 Rea5 Qh2 Rc5
3qn1R1/n3NbB1/q2kB1n1/7B/Qq2p3/1rP1N1Nr/K1n2Q2/2bbN1RN w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 f4 d5 g4 Kd7 b4 e5 f6 h5 f5 h3 b6 d3 Kc3 e4 Kb3 h4 c3 h2 b7 d2 f7 d4 f6 h3 b5 d3 b6 Kd6 g5 Bf5 g6 Rh6 g7 Qc7 Be2 Rh4 Nf3 Kc6 Na3 Ne7 g8B Bg6 Nc2 Qc8 Rg1 h1N Rg3 Bh6 f8Q h2 Be6 Nf2 f7 Bh5 Rg8 h1Q Ka3 a4 Kb2 Na6 b8N+ Kc5 b7 a3+ Kb3 a2 Nc6 Nb8 Nce5 Nc6 b8N Rh3 Ng4 Ra3+ Kb2 Na7 Nc6 Qa6 N6d4 Qh2 Nf5 Qhd6 Ng3 Qd8 Rb1 Kd6 Ra1 Nh1 Rb1 a1N Nf2 Be3 Nh2 Bg6 Bh5 Bg5 Nhf1 Bh6 Qe1 d1Q Qe8 d2 f8N Bf7 Qa4 Qde2 Ng6 Qec4 Qe2 Rb3+ Ka2 Qb4 Qf3 d1B Be3 Be2 Bd4 Be3 Re1 Bd1 Bg7 Bd2 Nfe3 Bc1 Nf4 Ng6 Nfd5 Qd4 Rg1 Qb4 Ne1 Nc2 Nfd3 Nf2 Ne7 Ng4 Nf2 Nf6 Nfh1 Ne8 Qf4+ Ne5 Qf2 Ng6
2KRq3/NN1Bb2n/2qr1Rb1/B1q3Rr/3p1r1R/4P1nr/k1NQ4/2Rn3Q w - - 0 1 illegal: No possible last move, all moves rejected
n7/b3Bkb1/q1rbb1nB/RR3N1N/R1p1Q3/Pn3r2/qr1R4/3QRB1K w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 e5 Kf2 b5 Kg2 c5 h4 g5 d4 b3 f6 b2 f5 b4 d6 e4 d5 b3 d7+ Kf7 h5 g3 h6 e3 d6 e2 a3 e1B h7 g4 Bg5 c4 Nf3 Bg7 Nd4 Qa5 d8R Be6 d7 Qa6 Bh6 Ne7 Rh5 Bb4 Kh1 Bd6 Nc3 b1R Ne4 Rf8 h8Q b2 Qh7 Ng6 Rc8 Ra7 d8R Nd7 Rc5 Nb6 Rb5 Rc7 Ra8 Rcc8 Rh2 Rc6 Rd2 Qc8 Ra6 Na8 Raa5 Qa6 Ra4 Rb8 Rba5 Rb3 Rb5 Rf3 Rba5 Ke8 f7+ Kf8 Nf6 g2+ Kg1 Ke7 f8B+ Kf7 Be7 Qb6 Re5 Qa6 Kh2 g1B+ Kh1 g3 Rea5 Be3 Nh5 Bf2 f6 Be3 Nf5 Ba7 Bf4 g2+ Kh2 g1N Kh1 Bc8 Bh6 Ne2 Rb5 Nc1 Raa5 Ke6 f7 Nb3 f8R Bd7 Rfb8 Kf7 Rb4 Be6 Rba4 Rc1 Rbb5 b1Q Bf6 Qa2 Be7 Rc2 Rb1 Ne5 Qg6+ Kg8 Qg4 Rb2 Qe4 Ng6 Qde2 Bh2 Re1 Bd6 Qd1 Kf7
rb1Q4/1Q3q2/Rq1qnQBQ/1QN1RqP1/2Kp3B/1N1b3N/n6b/1k2rr2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 g4 Ke5 c4 a5 b4 d5 g5 h5 c5 a4 f3 a3 f6 h3 c6 a2 f7 h4 b6 h2 b7 h3 c7 Nf6 b5 Nh5 b6 Ng7 Qd2 Bf5+ Ke2 d3+ Ke3 Na6 b8N Nb4 c8Q Ne6 b7 Qb6+ Qc5 Be4 Qf2 d2 Qg2 d1Q Na6 Bd3 Bd2 Bg7 Be2 Rhf8 b8Q+ Kf5 f4 Be5 Qd8 Bb8 Bh5 Qf1 Bc3 Qf3+ Kd2 Ke4 f5 d4 f6 Re8 Qg3 Qf5 f8Q Qd6 Ne2 Qb6 Rf1 h1Q f7 h2 Bg6 Qf3 Nf4 h1Q Qg2 Qh2 Nh3 Qhd6 Qg7 Rf8 Qb5 Re8 Qh2 Qh5 f8Q Qh7 Qgf6 Qf7 Q8g7 Rf8 Na3 Re8 Nc2 Rf8 Rab1 a1R Qh7 Na2 Rfe1+ Kf3 Rb4 Rc1 Re5 Re1 Rd5 Ke4 Ra4 Nf4 Rc5 e5 Na1 Ne6 Bb4 Bc4 Kc2 Bd3+ Kb3 Ke3 Qh1 e4 Re5 Ke2 Ra3 Kd1 Qh6 Kc1 Nc5 e3 Qb7 e2 Ra6 Kb1 Bd2 Re8 Bf4 Rf1 Bg3 e1B Bh4 Bg3 Qdc8 Bh2 Qcd8 Nc1+ Kb4 Nc7 Nb3 Re6 Rd5 Ree1 Re5 Ne6 Qbe7 Be4 Qb7 Na2+ Kc4 Bd3+
1qq1b1nN/1b3R1r/1BNnBQ1q/1nb1p3/6QN/3r2N1/3PKB1k/n2R3N w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 g4 Kg6 b4 a5 g5 Kf5 b6 h5 d6 e5 b7 c5 d7 c4 g6 e3 b5 e2 g7 Kg4 b6 Kg3 f5 a4 f6 h3 f7 h2 Ba3 c3 Nf3 c2 Nc3 c1Q Bc5 a3 Nh4 a2 Bh3 Ra4 Be6 Rd4 Rf1 h1Q Ne4+ Kh2 Ng3 Rd3 Bf2 Bc5 f8N Nc6 b8Q Bb7 Qd6 Nce7 Nfg6 Qb8 d8B Rh7 Nh8 Nf5 Bc7 Bc6 b7 Be8 Bb6 Qc3 Qf8 Nd6 Qf6 Qc2 Rb1 a1N Rc1 Qc6 Nh1 Qcc8 Rb1 Qa4 Rc1 Qf4 Qa4 Qh6 Qg4 Ba3 Rd1 Bc5 Nf5 h4 Nfg3 Qa8 b8N h3 Nc6 Qa7 Be3 Qab8 Kf2 e1N Ke2 Nf3 Bf2 Ne7 g8N Nd4+ Ke1 N4b5 Ke2 Qf8 Nh6 Ng8 Nhf5 Qh6 Be1 Kg2 Rf4 h2 Nh4+ Kg1 Nf2 h1B Rf3 Bg2 Nfh1 Kh2 Bf2 Bb4 Qf8 Ba3 Rf7 Bc5 Qe7 Bd5 Qf6 Be4 Nd8 Ba8 Nc6 Bb7
4r2Q/3q1r2/KB2b1BN/2BP2R1/Q1Bn2bn/R1bpq3/b2r2nk/N2BR3 w - - 0 1 illegal: No proof kernel
R2rB2R/rK1Bb3/N2QqB2/2Qp2n1/5BP1/3rR1Br/bn4N1/k1qnq3 w - - 0 1 illegal: No possible last move
1R4bN/1n6/5bRB/2pn1B2/1kN2q1n/r2PB1rq/1rQ1B1BN/K2b1n1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 Kd6 b4 f5 b6 h5 b7 a5 d3 f3 Kd2 f2 Kc3 f4 Kb2 h3 g5 a4 b5 Kc5 g6 a3+ Ka2 h2 g7 f3 e5 h4 d6 h3 e6 Qf6 e7 Qf4 e8B Nf6 g8B Kb4 d7 c5 d8N Nc6 b8B Bg4 b6 Nd5 b7 Na5 Bd7 Bg7 Qc2 Bf6 Be2 f1Q Nf7 f2 Nd2 Qg2 Nc4 f1N Be5 Rb8 Be3 Bh5 Bh7 Rhg8 Nf3 Rg3 Rg1 h1B Be4 h2 Nh8 Qh3 Bdf5 Bf7 Rd1 Bg8 Ka1 a2 Bb2 Bg2 Rb1 h1N Nh2 Bf3 Rg2 Rf8 b8Q+ Nb7 Qa8 Rb8 Rg1 Bh5 B2f3 Bg4 Bg2 Bd1 Bef3 Nd2 Be2 Nf3 Qa6 Nh4 Qc6 Nc7 Qe4 Nd5 Qf3 Ra8 Qf1 Ra3 Bbd4+ Rb3 Bc1 Rb2 Bde3 Rg6 Qf3 Ng3 Qh5 Nf1 Qh7 Qd4 Bh6 Qdg4 Bce3 Qf4 Qd7 Nd6 Bgf3 Nb6 Qd8 Kb5 Qa8 Rb4+ Rb2 Rg4 Qe4 Nd5 Bh1 Rg6 Rg5 Rg7 Qg2 Rg6 Qg1 Rb3 Bg2 Rg7 Qh1 Ka4 Rh5 Rg3 Rg5 Kb5 Rg6 Ka4 Qc3 Ra3 Rb8 Nb7 Kb2 a1R Bfg4 Kb5 Bf5 R1a2+ Kb1 Ka4 Qc2+ Kb4 Bg5 Rc3 Bh6 Rb2+ Ka1 Ra3+
1B1N1Q1R/1K1Qq1r1/3r4/NPpb1BNr/5Q1q/kNnrR1n1/4qbN1/6b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 a5 b3 h5 d6 f5+ Kd5 f3 e4 f4 g5 f2 e5 f3 e6 a4 g6 h3 e7 h2 e8N h4 d7 a3 g7 a2 b6 h3 b7 Rh7 Nd6 Nh6 g8Q Qe7 d8N Ra6 Ne2 Nd7 b8Q+ Nb6+ Kc6 Nf5 d5 Ng3 Nf4 Be6 N6b7 Rg7 Bd3 f1Q d6 f2 d7 Qe2 Na5 f1R Nf7 Rf3 Kb7 Na4 d8N Rd6 Nd2 Nc3 Bf5 Rfd3 Ng2 c6+ Qc7 Bd5 Rb1 a1B Ng5 Bb2 Qf1 Ka3 b4 Q7e5 Ndb3 Qe7 Bf4 Bc1 b5 Be3 Ka8 Bf2 Kb7 Bg1 Qd7 Bf2 Rg1 h1Q Re1 h2 Qh8 Rf6 Bb8 Rd6 Nh4 Qhe4 Ng2 h1R Qg8 Rh3 Rh1 Rh5 Rh3 Qh4 Rh2 Bg1 Qf4 Rgg6 Rh1 Bg7 Rh2 B7d4 Qf8 Rg7 Rh1 Bdf2 Rh3 Qd1 Re6 Qf1 Rh6 Qfe2 Rh8 Nge4 Rf3 Ng3 Re3 c5+
4R1K1/3nN2r/k1qqN1Nr/P1R2q2/Bb2QnQN/b1B3p1/B3nN2/q2b4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Kg4 g5 Kf5 c5 a4 c4 d4 b3 e4 f6 Kg6 Kc7 Kf7 Kb6 h4 c3 d6 f5 e5 b4 d7 b2 e6 b3 d5 c2 a5+ Ka7 d6 g4 h6 g3 h7 f3 e7 f4 e8B f2 h5 f3 h6 Ba6 Nc3 b1Q Nd5 b2 Bd2 c1B Ne7 Nf6 Bc3 Bg5 Bc4 f1Q Nh3 f2 Ba2 Qc1 Qg4 b1N Qe4 Qb6 d8N Nbd7 Ne6 Bd2 Qg4 Qg2 Re1 f1Q Nf2 Nh5 Re5 Qgh1 Rc5 Be2 Qe4 Bd1 Qg4 Rg8 h8N Qhc6 h7 Nf4 Nhg6 Ka6 h8N Ra7 Nh4 Qd8 N8g6 Rh8 Ng5 Qc2 Ne6 Rh6 Kg8 Qb8 Ne5 Qf5 N5g6 Na3 Rb1 Nc2 Rb7 Qd8 Rb8 Nd4 Ra8 Nde2 Rc8 Nb8 d7 Qdc7 d8Q Nd7 Ra8 Q7d6 Qb8 Bc1 Qb4 Ba3 Qd4 Bc2 Qe4 Qa1 Bf7 Bd1 Re8 Bb4 Bb3 Bg7 Ba4 Bh8 Bd2 Bb2 Bc3 B2a3 Nef8 Qd3 Ba2 Qdd6 Ne6 Nb8 Nd5 Rah7 Nde7 Nd7
1rB1N2q/1N1N1Q1q/k1r2qr1/P1nB1pB1/R3b3/Bb2QB2/2Rb1K2/1n4b1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 a4 c5 g4 Kc7 a5 b5 d6+ Kb7 d7 f3 e5 f2+ Ke2 h4 e6 h3 e7 c4 e8Q h2 g6 c3 d5 b3 g7 b2 g5 b4 g6 b3 d6 c2 Ke3 Na6 Nf3 Nf6 g8B Rb8 g7 Rh6 Qd2 Rg6 Be2 f1Q Ra4 Nc5 Na3 b1B Nc4 b2 Nfe5 Ka6 Bf3 Nfe4 Rg1 h1R Rg2 f6 Bd5 Rhh6 g8B Nc3 Bge6 Be7 Qf7 Qh8 d8B Bd7 Ra2 Ba4 d7 Bb3 Ra4 Bd6 Be7 Bc7 d8N Bd6 Nd7 Bh2 Bfg4 Qf5 Bgf3 Qe5+ Kf2 f5 Qe2 Qef6 Be3 c1B Nb7 Be4 Bg5 b1Q Qe3 Bd2 Ncd6 Qh1 Ne8 Qh7 Ne5 Qa1 Bc8 Nb1 Nd7 Qfh8 Bf8 Rc6 Bd6 Qaf6 Be7 Rg6 Bd6 Ne6 Ba3 Nc5 Kf1 Bc1 Rc2 Bd2 Kf2 Bg1+
Nk3Kq1/1n1q1BN1/b4nNP/r1B3RB/2r4b/1N1Np1b1/r3q3/2R1qQ1Q w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 g5 Kd3 e5 Kc4 a5 Kd5 d3 f4 d2 b4 a4 c4 a3 h4 g3 b6 e4 h5 g4 b7 a2 f6 e3 b5 d6 c5 Kd7 b6 g2 h6 g3 f7 Qc7 f5 Bg7 f8N+ Kd8 c6 Bc3 f6 Nd7 Ke6 d5 Kf7 d4 b8Q d3 b7 Ra5 Nh3 g1Q Nf2 g2 Rh5 Qe5 Rg5 Nc5 Be2 Ne4 Ba3 Qf5 Qf4 Nc5 b8N Be5 Nbd7 Kc7 Nb6 Ba6 Ne6+ Kb8 Na8 Qh7+ Ng7 Nb7 Bh5 Bc7 Qh2 Bg3 Qh1 Qh2 Qc1 d1Q Nd2 g1R Qc4 Rg2 Nb3 d2 Qcf1 Qe1 Rc1 d1Q Bb4 Qd8 Nd3 Rd2 Bf8 Qhe2 Ba3 Qc7+ Ke8 Bh4 f7 a1B f8N Be5 Ng6 Ra2 Bb4 Qd6 Kf7 Nf6 c7+ Ka7 c8B Beg3 Ba3 Kb8 Be6 Rc8 Bd5 Rc3 Bc5 Qd7+ Kf8 Rc4 Bf7 Qg8+
1K1Q1q1n/R2BRQr1/Q5PR/4Rbb1/1n3Nr1/p4kq1/3B1rNb/q3R1b1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 g4 a4 b4 h3 b6 c6 f5 h2 f6 h4 f7 e3 b5 a3 g5 h3 g6 e6 b7 e2 b6 e1B Ne2 Bg3 Qa4 Na6 b8R Rh4+ Nf4 Nb4 b7 Ra7 Bb5 Rg4 Qa6 Nh6 Ra8 e5+ Kc4 e4 b8R Ke5 d4+ Kf5 d6 e3 Kc5 Ke4 d5 e2 Rb7 e1Q Ng2 Kf3 Nc3 Bf5 Bd2 Qde8 Kb6 c5 Kc7 c4 Ne2 c3 Rc1 c2 Bd7 Qg1 Rd1 c1B Re1 Bg7 f8Q Nf7 Qg8 Qf8 Nef4 Nh8 Qf7 Bd4 Re5 Qe3 Re1 h1R Rae8 h2 Kb8 Rf1 Rc7 Qg7 R8e7 h1Q Bb5 Qh5 Bc3 Qf2 R7e6 Qgh6 d7 Qd2 Qh7 Qh3 d8R Qc2 d6 Qg7 d7 Qd1 Nd3 Nf7 Rh8 Bg1 d8Q Bg5 Bd2 Qa1 Ndf4 Qf8 Qg7 B3h2 Rh6 Nh8 Rd7 Rc7 Ba4 Rc5 Ra7 Rc7 Re8 Rf7 Bd7 Qg3 R8e7 Rf2 Qg8 Rh7 Qf7 Rg7
nB3B1K/R1brn2B/1R1PBqQb/N1B3n1/Qqp4r/4n3/1kN2r2/3bR3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 f3 d6 a4 d7 a3 b6 f2 b7 a2 d5 h3 Be3 f4 Nd2 h2 Ne2 f3 Nd4 h4 Bd3 f1N N2b3 h3 Na5 Na6 b8B Ne7 Kf6 f2 g8B Ra7 e5 Rh4 e6 Bh6 Bdh7 Nc7 Nc2+ Ka4 b4 Na8 Bd4 Ne3 Re1 h1Q b5 h2 b6 f1N b7 Nd2 Kf7 Ne4 Bc5 Ng5+ Kf6 Qb6 d8B Qb4 Bdc7 Qg2 B7d6 h1R Qh5 Qgd2 Qg6 R1h2 Bf7 Qb6 Bfg8 Qdb4 Bf7 N7f5 e7 Rf2 e8Q+ Qc6 Be6 Ne7+ Bf4 Bd7 Bbd6 Bc8 b8R Rd7 Rb7 Qcb6 Ra7 Qc6 Rab1 a1B+ Rb2 N7f5 Bf8 Ne7 Nd4 Ka3 Rbb1 Nf3 Bb8 Qa6 Kf7 Ka2 Nc2 Be5 Rb3 Bc7 Rbb1 Qd6 Rb3 Qe5 d6 Bb7 Rbb1 Be4 Rb3 Bd3 Rbb1 Be2 Rb3 Bd1 Rb1 N7f5+ Kg8 Ng5 Rb3 Qf4 Kh8 Ne7 Rb1 Qa3 Rb6 Qb4 Rc6 Kb2 Rb6 Rd8 Qb5 Rd7 Qa4 Qf6+
R1rb1K1N/1BnN2Q1/q1Pb2Q1/N2N1n2/3R2qk/Bb6/1p3Nrr/r1q1R3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 Kf6 Kc4 g5 Kd5 e5 h4 b5 f4 b3 c4 e4 a4 d3 h6 b2 h7 g4 c5 e3 a5 e2 h5 e1Q c6 b4 h6 b3 a6 d2 a7 d6 Ra4 g3 Qg4 d1R+ Rd4 g2 Na3 b1R Nc4 Qb6 Na5 Qb7 Ba6 Rb2 Nh3 g1B Nf2 Bh2 Qg3 Be7 Rg1 Qb6 Bb7 Bd8 Qg4 Ra2 Ba3 Rda1 Qh5 Qe2 Re1 Na6 Qe8 Rb8 a8N Qg4 Nc7 Bd7 Qe4 Rc8 Qd3 Re2 Qg3 b2 Qg1 Kf7 f6 Kg6 f5+ Kg5 f7 Kh4 f8N Be8 f6 Ne7+ Kc4 Bg6 f7 Nf5 Nd5 Nc7 Nd7 Qa6+ Kb4 Bh5 f8Q Bf7 Qg7 Rg8 h8R Rd2 N5b6 Bb3 h7 d5 Kc5 Bf4 Qg6 Rg7 Rg8 Be5 h8N Rh7 Rd3 d4 Nd5 Re2 Rdd1 d3 Qg2 d2 Qg7 Bh2 Qe4 Ng3 Kd6 Rh5 Qeg6 Rg5 Rc1 d1Q Rc4 Qc1 Rd4 Rd2 Nd1 Rg2 Nf2 Rh5 Rf8 Na8 Rg8 Nf5+ Ke6 Bf4 Kf7 Nc7 Kf8 Bd6+ Ne7 Rb8 Rc4 Kg3 Kf7 Rhh2 Nd5 Kh4 Rd4 Bf6 Rf8 Re8 Rg8 Re2 Ra8 Re8 Nh3 Rc8 Nf2 Bd8 Kg8 Bg3 Kf8 Bd6+
2RR1N2/4n1Qq/Pbr5/1RBrp2Q/R4Q2/1b1N1R1b/qbr4K/1Bnk3n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 Kd6 g4 c5 f4 h5 Kf2 e5 Kg2 b5 a5 b3 g5 b2 a6 h3+ Kg3 h2 f6 h4+ Kg2 b4 f7 c4 f5 c3 f6 c2 g6 b3 g7 Qa5 Be3 c1B Nc3 b1B Ra4 b2 Bd3 Bc2 Nge2 b1R Nf4 Rb6 Nce2 Nd7 Ne6 Ne7 g8Q Bb3 N2f4 Nc5 Bb1 Nd3 Qg7 Rc6 Qh5 Bb2 Rd1 h1N Kh2 Nc1 Nd3 h3 Bf2 Kd7 d6 Rc2 d5 Rh6 Rg1 Rb8 Rgg4 Rb5 Rgb4 Rbc5 Rb5 Rg6 Rf4 Qa2 Ra4 Rh6 Qgg4 Rg6 Qf4 Bh6 f8Q Bg5 Qfg4 Be3 f7 Rc6 Qg3 Bb6 Qf4 Rg1 Qg7 Rd1 f8R Rdd2 Kg1 h2+ Kg2 Rd1 Kh3 Ng3 Bc5 h1Q+ Kg4 Qe4 Kh3 Qh7 Rf6 Nh1 Nf8+ Kd8+ d7 Kc7 Rf5 Rdd2 d8R Bd7 Bf2 Kd6 Rc8 Be6 Kh2 Bd7 Rg5 Bh3 Rg3 Rd1 Rf3 Rdd2 Ne1 Rd4 Rbb4 Kc5 d6 Kd5 d7 Kc5 Nd3+ Kd5 Qfh6 Ke4 d8R Qa3 Rb5 Qa2 Ra3 Rd5 Qd2 Ba7 Bc5 Bb6 Bd6 Kd4 Bc5+ Kc4 Qf2 Kc3 Ra4 Qg8 Kg1 Qh7 Qf1 Kd2 Kh2 Rc4 Qf2+ Kd1 Qfg3 Rc3 Qf4 Rc2+
2R1N2N/2B4k/P1QpN1R1/1rb2r1q/rqQ2nB1/1B3N1r/3b1N2/2n2bnK w - - 0 1 illegal: No possible last move, all moves rejected
3q1b1n/5r1k/p1KRR2P/1RN1b2B/1BbNn1Rq/3q4/2bQ4/BQ2rR1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 c5 h4 g5 d4 f5 e4 Kf7 b4 Kg7 e5 c4 h5 c3 b6 g3+ Kf3 a6 h6+ Kg6 e6 c2 b5 g2 b7 Bd6 e7 Nf6 e8R Kh7 b6 Be6 Qd2 Nc6 b8R Ne7 b7 Be5 d6 Bc4 d7 Ng6 d5 Ne4 d6 Ra7 Ba3 c1R Re6 Re8 Be2 Nh8 Rh4 Bd3 Bb4 Bc2 Nc3 Rd1 Nh3 g1B Nb5 Bc5 Nf2 Rh1 Nd3 Re7 Nd4 g4+ Kg2 g3 Kf3 g2 Rg4 g1Q Rf1 Qh2 Bd1 Qe8 d8R Qh4 d7 Rf7 Be2 Bf8 Nc5 Re7 Rdc8 Rf7 Rcc6 Qed8 Rcd6 Re7 Ra8 Rf7 b8Q Rc7 Qb7 Rc6 Rb8 Rb6 Bc3 Rb1 Ba1 Re1 Qb1 Ng3 Kf2 f3 Ke3 f2 Rb5 f4+ Kf3 Ne4 Bd1 Qdf6 d8B Qfg5 Ba5 Qd8 Rfg1 f1B Bb4 Bc4 Rf1 Ng3 Kf2 f3 Be2 Bf5 Ke3 f2 Kf3 Ne4 Ke3 Bb3 Kd3 Bc2+ Kc4 Bd3+ Kd5 Bc4+ Kc6 Bg6 Rfg1 f1Q Bf3 Qd3 Rf1 Rb7 Rg2 Rf7 Bh5 Bf5 Rgg6 Bg4 Rg8 Bd1 Rg4 Bc2
2QqqB1r/q3Q1P1/b3nNN1/3b2Np/kr1Rn3/N1b5/B1N1R1r1/1Q1qK3 w - - 0 1 illegal: No possible last move
3q1br1/B2k1bP1/n1bN2B1/3p2n1/1r1N2bB/R1Rr4/q2Q1QKQ/q4B1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 e4 f5 b4 h5 g4 d3 c4 h4 c5 a4 g6 d6 e5 f3 b6 h3 c6 h2 b5 d2 b7 f4 b6 a3 c7 a2 g5 Rh3 e6 Nd7 b8B Ra5 b7 Qf6 g7 Rh8 e7 Rb5 g6 Rb4 Na3 Nc5 Ba7 Kd7 b8Q Nh6 g8Q Na6 g7 Nf7 Ne2 Ng5 Qf7 Rg8 Nb5 Qe6 Qe1 d1R Ned4 Rd3 Qd2 Qf6 Rg1 h1B Rg3 Qe6 Kg1 f2+ Kh2 f3 Qf5 Bg2 e8B+ Ke7 Bg6 Kd7 Qf6 Qe7 Bb2 Qd8 Rc1 a1Q Rc3 Qa2 Qff4 Bh3 Kh1 Bb7 c8B+ Ke7 Qf5 Bc6 Bb7 Bg4 Qff4 Kd7 Ba8 Bd5 Qb6 Bde6 Rh3 Bc4 Qh2 Bf7 Bae4 d5 Ba3 Rc4 Be7 Ra4 Nd6 Rb4 Be2 f1B Kg1 Ne6 Bh4 Ng5 Rg3 Bfh3 Bf1 f2+ Kh1 Bd1 Ra3 Bhg4 Kg2 Ba4 Rf3 Rdb3 Rc3 Bc6 Rc4 Re3 Rcc3 Rd3 Ne2 Ke7 Kh1 Bf3+ Bg2 f1Q+ Qbg1 Bce8 Nd4 Bg4 Bh3 Qfa1 Bf1 Re3 Qgf2 Bc6 Kg1 Rh3 Bh1 Rd3 Kg2 Kd7
2R1Q2B/3n1Pq1/bb2rBn1/Q4NB1/1qB1Rqp1/2Nq3r/1Bn5/KNr3k1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 Kf7 Kd2 Kf6 Kc2 Kf5 f4 g5 h4 a5 b4 c5 Kb2 e5 h5 e3 b6 Ke4 b5 g3 d6 e2 d7 e1R d5 a4 f5 g2 d6 c4 b7 Ra6 h6 Ne7 b6 Ng6 Ne2 Kf3 h7 Kf2 f6 g1Q f7 e4 Qd2 e3 Nec3+ e2 Rh4 a3+ Ka2 Qg4 Bb2 Kg1 Qd5 Qg3 Re4 Rc1 Qa5 e1Q Be2 Qf6 d8B g4 d7 Qg7 Bg5 Qd3 d8B Nd7 b8N Bc5 b7 Re6 Nc6 Bb6 b8Q Ba6 Bdf6 Qed2 Qe8 Qf4 Na4 c3 Nd4 c2 Nf5 Qfd6 Nac3 Qb4 Qc8 Re1 Qe8 c1Q Bf1 Qf4 Be2 Rc1 Bf1 Qc2 Bc4 Qd3 Qe7 Rc8 h8B Rc5 Qe8 Rce5 Rd4 Re3 Re4 Rh3 Nd2 Rd1 Rc1 Rf1 Ka1 a2 Ndb1 Re1 Re3 Rd1 Rc2 Rc1 Re4 Nde5 Na4 Qff1 Bd5 Qf4 Rc8 Qba3 Bc4 Nd7 Nc3 Qb3 Ba3 Qa4 Kb2 a1N Ka2 Nc2 Kb2 Ne3 Ka1 Qb4 Bb2 Nc2+
RQ1b1n2/1B1NP1Q1/1N3qnr/K1Nb1R2/4q3/2r2qbN/p2Nkb1B/2R4n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 c5 b4 a5 h4 g5 e4 f5 b6 c4 b7 a4 h5 g3 b5 a3 Kb4 g4 h6 a2 b6 c3 h7 c2 Qe1 g2 Be3 c1B Rh5 f3 Qf2 f4 Qg3 f2 Rf5 Be6 Ba6 f1N Ka5 Be7 Nh3 g1B Bf2 Nd7 b8N Nf8 Nd7 Rc8 Bb7 Rc3 Nd2 Qe8 Qh2 Bd8 Bg3 Bf2 Qg1 Qh5 Bh2 g3 Rb1 Ba3 Rc1 Ne7 Qg2 Neg6 e5+ Ke7 Qg1 f3 Qg2 Bf7 e6 Kd6 e7 Bc5 Qg1 Be1 Qg2 f2 Qg1 Qf3 Qg2 Rg8 h8Q Qe4 Qg7 Rh8 Qf3 Rh5 Qd3 Rh6 Qb5 Be6 Ne5 g2 Ba8 g1Q Ra1 Rc4 Rc1 Qg5 Ka6 Qf6 b7 Rh4 b8N Bdb6 Qb2 Kc7 d6+ Kc8 d5 Rh6 d7+ Kc7 d8N Kd6 Qb3 Rc3 Bc6 Be3 Nec4+ Kc5 d6+ Kd4 d7 Kd3 Nb7 Ke2 d8R Ng3 Nd7 f1Q Nbc5 Qff3 Ra8 Bd8 Qb8 Nh1 Bb7 Bd5+ Ncb6 Bg3 Ka5 Bef2
1n1N2q1/Br1P1Q2/2nK4/1rNQ4/2Bbp3/Q2b1Nk1/b1n1QqnR/2R2Qr1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 d4+ e3 g4 h5 b4 a5 b6 e5+ d6 a4 b7 a3 b5 a2 d5 h3 g5 h2 b6 h4 g6 h3 g7 Ra7 Nf3 Be6 Qe2 Ne7 g8Q Bg7 d7 Nec6 d6 Rh5 Nc3 Rg5 Rb1 a1N Na4 Ba2 Qd5 Qg8 d8N Nc2 d7 e4 Rb2 Re5 Rg1 h1Q Bd2 h2 Bc3 Bf6 Bd4 Qhg2 Rh1 Rg5 Rb1 Ne5 Rc1 c6 Kd6 c5 Qf7 c4 Nc5 c3 Qd5 Nec6 Qf7 Na6 b8Q Rb7 Qa7 Nab8 Qa3 Kg4 Qe1 Rf5 Bc4 e2 Qf1 e1N Qd5 Qg1 Be3 Bd4 Qe2 Ra7 b7 Ng2 Qf7 Na6 b8Q Rb7 Qa8 Nab8 Nh4+ Kh3 f4 Kg3 Nf3 Qf2 Q8a5 Rh5 f5 Rg5 f6 Rf5 Rhd1 h1B Rd2 Re5 Nd3 Reb5 Nc5 Na1 Rb2 c2 Qad2 Nh4 Qdd1 Bg2 Qdf1 Bh3 Qd5 Ng2 f7 Be6 f8Q Bb1 Re1 c1R Qf7 Bd3 Ra2 Rcb1 Rc1 Nc2 Na4 Bc3 Ba7 Bd4 Nc5 Kg4 Qe3 Nce1 Rc3 Qe2 Qdf5+ Kg3 Bd5 R1b3 Qh1 Nh4 Q5h5 Qf1 Rh2 Nhg2 Qe2 Rb1 Qg1 Rd1 Rc1 Qf2 Ba2 Bb3 Qhd5 Nc2 Qge1 Ba4 Bc4 Bb3 Q1d2 Re1 Qdd1 Rg1 Qdf1 Ba2
r3nn2/q2Q1KN1/8/2bb3N/r1Q1b1Pr/BQ2pB1Q/Rrr2k2/RQRr4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 e3 g4 h3 f5 e6 f6 c6 f7 a4 b6 e2 b5 e1R b7 a3 b6 a2 Be2 h4 Bf3 h2 Qb3 h3 Nc3 Qc7 Na4 Re3 Qc4 Rb3 Ne2 Rh4 Nc5 Nf6 Ba3 Rb2 Ng3 Ne8 Rhc1 h1B Nh5 Nd7 b8Q h2 b7 e5+ Ke4 Bg2 Kf5 h1R Kg6 e4 d4 e3 Ne6+ c5 Neg7 Be7 f8R Rd1 Rf4 Nf8+ Kf7 Bf5 Re4 Bh1 Rf4 Be4 Rf6+ Kd7 d6 Kc6 d7+ Bd6 Rf5 Qa5 d8Q Qa7 Qg5 Be7 Qh2 Bd6 Qb3 c4 Qgf4 c3 Ra5 c2 Qh3 Be7 b8Q Bc5+ Kg8 Bg2 Qff7 Bh1 Qfc4 Bg2 Q8b5+ Kd6 d5 Ke5 d6 Bh1 Rcb1 c1R d7 Rcc2 d8Q Bg2 Rc1 Bh1 Nf6 Kf4 Qdd7 Bg2 Kf7 Bh1 Qhf1 Kg3 Qh3+ Kf2 Nfh5 Bg2 Rab1 a1R Qb8 Raa2 Ra1 Rcd2 Q8b6 Rbc2 Ra4 Rd4 Qb1 Rab2 Qbb3 Bh1 Bb4 Bg2 R4a2 Bh1 Ba3 Bg2 Qcb5 Ra4 Q5c4 Bc6 Be2 Bge4 Bf3 Bcd5+
QqbnkBQ1/nn4r1/7n/BR1n4/rp2B2P/NNR1nb1Q/7K/B3b1B1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d3 b3 f4 Qd6 Kf2 c5 Kg3 g5 a4 e5 h4 b5 f6 e4 d4 b2 a5 e3 a6 c4 a7 c3 Kg2 g3 f5 e2 Be3 e1N+ Kh3 c2 Qf3 c1N Ra4 g2 Rc4 Nb3 Ne2 Nh6 Nc1 Rh7 Na3 b1B Bd3 Na5 Bf2 Qe5 d6 Nc2 d5 g1N+ Kg2 g4 Qh3 Qb2 Kh2 Nbc6 Rb4 Ne3 f7+ Kd8 f6 Ne2 d7 Nc3 Rb3 Bb4 Bc2 Rg7 f8Q+ Kc7 d8B+ Kd7 d6 Ncd5 Bh7 Be4 f7 Bf3 Bf6 Qb1 Rd1 Be1 Qg8 Qb2 f8B Ke8 Be4 g3+ Kg1 g2 Rdd3 Qb1 Kh2 g1N Ba1 Ne2 Bg1 Nef4 Rdc3 Ne6 Rb2 Rb8 a8Q Na7 Ne2 Rb6 Nd4 Rc6 Rbb3 Rc4 Rb2 Ra4 d7+ Kd8 Rbc2 Qb2 Rc5 b4 Nb3 Nb7 Rb5 Qe5+ Qg3 Nef4 Qh3 Qb8 Rcc5 Rg3 Rc3 Ne6 Bg7+ Ke7 d8B+ Kd7 Bf8 Ke8 Bc7 Ned8 Ba5 Rg7+
2BQ3N/qN1n2B1/n1n1N2r/1NRPn3/6Q1/bKn5/p3R1Nr/1Qbb2nk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 e4 a5 g5 h3 b6 c4 b7 f3 b5 a4 g6 f4 b6 f2 g7 h2 Bb2 f3 Qd2 a3 Be2 f1N Qh6+ Nf6 g8N a2 Bd1 h4 Ba4 h3 Bc2 f2 Na3 Qd7 Ne7 Nc6 b8N Ra6 b7 Ng3 Re1 f1N Ng6 Ne3 Nf3 Neg4 Qg7 Nge5 Nfh4 Qc7 Ng2 Bg4 Rc1 Nfd7 Rhe1 h1N Re2 h2 Bd1 Rh5 Nh8 Nf2 Kc2 c3 Kb3 Bf3 Qg4 h1N Ba1 Nfd3 Nb5+ Ke7 d6+ Kf6 d5 Ndb4 Bc2 Nf2 Bb1 Rb6 Na6 Nh3 b8Q Ng1 Nc5 Na6 Ne6 Rh2 Bb2 Qa7 Qb7 Ndb8 d7 Ba3 d8N Nbd7 Ba1 Nf5 Qb8 Ne3 Nb7 Nd1 Qg3 Nd3 e5+ Kf5 Qd8 Bh5 Qe1 Kg4 Bb2 N3f2 Bf5+ Kg3 Qf1 Ng4 Rcc2 Nde3 Qb1 Nd1 Ba1 Rh4 Qg8 Kh2 Qg5 Kh1 Qg8 Nh2 Qg4 Nhf3 Nc7 Nf6 e6 Rh2 e7 Nf2 e8Q Ncb8 Qgg8 N2e4 Bc8 Nfd7 Rf2 Rh6 Ne6 Nc6 Qd8 Bg4 Rcd2 Bh5 Rd3 c2 Rc3 Bg4 Rc5 Bh5 Bf6 Nfe5 Qg3 Bf3 Bg7 Bd1 Re2 Nc3 Qg4 c1B+
n4bBQ/3QN2R/1Nbr1q1b/1B1p4/Bb1QP1n1/3b1k1K/R2Br3/3nbB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kf2 Ke7 Kg2 Ke6 b4 Kf5 h4 Ke4 c4 g5 e6 a5 c6 d5 h5 f5 e3 g3 b5 f4 c7 a3 h6 g4 e7 a4 e8B a2 b6 a3 c5 Bd7 c8B Nf6 c6 Na6 b7 Nc7 b8Q Ra6 h7 Na8 c7 Bc6 Rh5 f3+ Kh1 f2 Qb5 g2+ Kh2 g3+ Kh3 Ng4 Bcd7 Qf6 Be2 f1B c8B Bh6 Bf7 Re8 h8Q Re5 Bc4 Bd3 Nf3 g1B Nd4 g2 Bd2 Bf2 Nf5 g1B Bg8 Be1 Ne7 Rb6 Qda4 Kf3 Nc3 Re4 Qa7 Bh2 Qaa4 Bd6 Ba6 Bb4 Qc5 Re6 Bcb5 Rd6 e4 Rb7 Rb1 a1B Qd4 a2 Rb2 Ra7 Rc2 Bb2 Be8 a1N Bd7 B2a3 Ra2 Nc2 Rh4 Bf4 Rh7 Nce3 Be8 Nd1 Bd7 Bb1 Bf1 Bg5 Bab5 Bh6 Be8 Rb7 Qaa7 Rb6 Qd7 Bd3 Na4 Ra6 Nb6 Ra5 Ba4 Rc5 Bg5 Rc2 Be3 Rf2 Bd2 Re2 Qa7 Bb7 Beb5 Bc6 Qb7 Bf8 Qd7 Bc1 Bc3 Bg5 Bd2 Bgh6
2b1k3/BrR2n2/bnNRnb2/1NqR2bN/2p4Q/1B4QP/1KR2b1R/r2n4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 Kc3 g5 e4 c5 b4 f3 e5 f4 e6 f2 b6 g3 d6 a4 h3 f3 b7 g2 e7 g4 d5 a3 b5 a2 b6 g3 Be3 Ra3+ Kb2 Bh6 Ne2 g1N Qa4+ Nd7 b8Q g2 b7 Bg5 Ng3 Nh6 Nc3 Qc7 Nh5 Nf7 Qh4 Nf8 Rc1 Rh7 Rh2 Ne6 Rc2 Ne2 Nb5 Nc3 Bc4 g1B Bb3 f1N Bd4 f2 Be3 c4 Ba7 Qc5 Qc7 Ne3 b8N f1B Nc6 Bg2 Qb8 Kd7 e8R Bf2 Rg8 Bf3 Rg7 Ke8 Qc7 Bg4 Qb8 Ra5 Qc7 Ba6 d7+ Kf8 d6 Ned5 Ne5 Nb6 Nc6 Bf3 Nb8 Bfb7 Nc6 Bc8 Qb8 Rh8 Rh7 Rg8 Qc7 Rg7 Qb8 Ne5 d8R+ Kf7 Rd7+ Ke8 Rh6 Nf7 Rc7 Ra3 Rf6 Rh7 Rf5 Ne2 Rd5 a1B+ Kb1 Baf6 d7+ Kf8 Rd6 Nc3+ Kb2 Ra1 Rd5 Nh6 Rd6 Re7 d8R+ Kf7 R8d7 Ke8 Rd5 Rg7 Rb7 Re7 Qbg3 Nf7 R7d6 Rc7 Ne5 Rd7 Rc7 Re7 Rcc6 Rb7 Rc7 Bd8 Nc6 Bde7 Rd3 Bef6 R3d5 Nd1#
bn1q2R1/n1Qr1BKN/3b4/3P1N1n/1NQR3p/6N1/3rRB1r/kr1N1nr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d7 f4 b7 a4 Qe2 Kb3 Rh2 c2 Nc3 h4 Nd1 f2 Be3 Nf6 g8R Qb6 d8N c1N Ne6 f3 Ng5 a3 Nh7 Bb4 Qc4+ Ka4 Ne2 a2 Ng3 Ne2 d5 Nd4 Be2 f1N Bf2 Nh5 Rg2 Na6 b8Q h2 Qbc7 h1R b3+ Ka3 Rc1 Bd2 b4 a1R b5 Bb7 Rc2 Ba5 Rd2 Bb4 Rh2 Qa5 b6 Nb5 Rd4 Nb8 Ke6 Rb1 Kf7 Bd6 e5 Na7 e6 Bc6 b7 Qb6 Rg2 Rh2 e7 Qa5 e8N Qb6 Bg1 f2 Ng7 Qa5 N7f5 Qb6 Qc5+ Ka2 Qc4+ Ka1 Bf3 Nd2 Kg6 f1R Bf2 Rg1 Be4 Nf1 Bd3 Nd7 b8N Qa5 Na6 Nb8 Nb4 Qb6 Rg7 Rd8 Rg8 Rd7 Be4 Nc8 Bd3 Ra2 Be2 Ba8 Bf3 Nf6 Bh5 Na7 Kh6 Qa5 Bf7 Rd2 Kg7 Qb6 Be3 Qa5 Re2 Qb6 Bf2 Qa5 Q7c6 Qd8 Qc7 Nh5+
R2K4/1N1Q1r1N/B1nq4/1b1pB1Br/2nq1QP1/b2rrrB1/BR2R3/2r2k2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 h5 f4 e5 g4 a4 c4 e4 b4 d6 b6 h3 c5 h2 b7 d3 b5 e3 b6 d2 c6 h4 c7 h3 Na3 e2 Rb1 e1R Rb2 Nd7 Kc6 Qe7 b8B Rh5 b7 Nb6 Nc4 Ra7 Na5 d5 Bc4 Be6 c8B Bd7+ Kc7 Qb4 Bb3 Ne7 Nf3 Re4 Rg1 h1R Ng5 h2 Re1 Rf1 Qc2 d1R Kd8 h1R Qc6+ Kg7 f6+ Kh6 Bc4 Rf3 Ree2 Rdd3 f7+ Re6 Be3 Rc1 Nh7 Qc5 Qd6 Bb5 Bc7 Kg6 b8R Qd4 Ba6 a3 Ra8 Kh6 Bb3 Nc4 Bf2 Kg6 f5+ Kh6 f6 Ree3 Qe6 Kg6 Be5 Nc6+ Ke8 Bd6 f8B Bc5 Be7 Rc7 Nf8+ Kg5 Nb7 Rd7 Bd8 Be7 f7 Qc5 Rbc2 a2 Qd6 a1Q Ba2 Qad4 Rb2 Rg3 Qe6 Kh4 Nh7 Kh3 f8Q Kg2 Qf4 Rgf3 Bg3+ Kf1 Qef7 Bf8 Bg5 Rc7 Qe6 Rf7 Qd6 Be7 Kd7 Bf8+ Kc8 Qb4 Qd7 Qe7 Kc7 Qe6 Kc8 Ba3 Kc7 Qd6+ Kc8 Nb8 Kd8 Nc6+
R4Q2/N1nB1Nr1/RNB1Pr1q/B3K1Nk/Q2N2q1/1q4pn/4q3/3bqqb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 a5 e4 f5 b4 Kf7 h4 g5 c4 a4 b6 g4 b7 g3 b5 f3 b6 a3 e5 f4 c5 f2 c6 f3 c7 a2 h6 Kg6 h7 Qg5 Nc3 Nh6 Nb5 Ra7 Bd2 Bc5 Nh3 Kh5 Bg2 Bg4 c8B Na6 b8N Nf7 b7 Nc7 e6 Rf8 h8N Qh6 Bd7 Ng5 Nc6 Rf6 b8N Bb6 Ba5 f1Q+ Qe2 f2 Nf7 Qb1+ Qc2 Bd1 Rh2 Rb7 Nca7 Qb2 Be4 f1Q+ Re2 Qb4 Qa4 Qbe1 Bg2 Qf5+ Be4 Qg4 Rc2 Bc5 Bh1 Bb6 Rc6 Bc5 Ra6 Qf1+ Kd2 d3 Kc3 Be3 Nd4 d2 Bg2 Nf3 Nhg5 Ng1 Nc8 Qge2 Nb6 Nh3 Nbc6 Qfe1 Na7 Qg4 Ndb5 d4+ Kc4 d3+ Nd4 Qf1 Bgc6 Qfe2 Kc5 Qf1 Kd6 Qfe2 Rb1 a1Q Ke5 Qb2 Rc1 Qb3 Rc4 Bc2 Rc5 d1Q Rc3 d2 Rd3 Qb4 Ra3 Qdf1 Ra2 d1Q Ra3 Kg6 Ra2 Qde1 h5+ Kg7 Ra3 Qb3 Ra1 Bd1 Ra2 Qh8 h6+ Kg6 h7 Kh5 Ra3 Qf8 h8Q+ Qh6 Qc8 Rb8 Qh8 Rg8 Ra1 Rgg6 Qf8 Rg7 Qb5 Qbd3 Bb4 Rh7 Nac8 Qeg2 Ra8 Q2e2 Na7 Qc4 Ra6 Qb3 Ba5 Rg7 Qa4 Bg1+
nNB1nB2/1nnNQ1qP/2KBR2n/4b2B/2k2p1N/5RQ1/3r2n1/Bq1b1r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 g5 b6 a5 b7 a4 b5 c4 b6 c3 h5 f3 Ke3 g3 h6 c2 h7 f2 Qf3 a3 Nh3 g4 Kd3 f4 Kc4 a2 Kb5 g2 Be2 f1N Nc3 g1Q Qg3 Nd2 Rb1 a1N Bb2 c1N Na4 Nf6 Ng5 Nc4 Nc5 Qc7 Rh6 Nab3 Nf3 Qg7 Ba1 Nd3 Rf1 Ne1 Nh4 Na6 b8N Nba5 b7 Ng2 Rf3 Nb6 Ncd7 Qc1 Bd1 Qb1+ Bb3 Ra7 Rg6 Na8 e5+ Ke7 e6 Kd6 e7 N6c7+ Ka4 Ra6 e8B Be7 Bf7 Rd8 Be6 Nfe8 Bd1 Bf6 Bf5 Ke7 d6+ Kf7 d5 Be5 Be2 Rc6 Rh6 Rc1 Re6 Rf1 Bd1 Qc2+ Kb4 Qa2 Kc5 Qb1 Qf2 g3 Be2 Nb3+ Kc6 Nc5 Bh3 Ne3 Qe1 g2 Qg3 g1N Bg4 Nh3 Bh5+ Qgg6 Ba6 Nf2 Nf6 Ncd3 d7 Ng2 d6 Nc5 Bd3 Ng4 Bf5 Nh6 Bh3 Ng7 Bf5 Rh8 d8B Nge8 d7 Rf8 Be7 Rh8 Bhg4 Qg7 d8Q Rg8 Bf8 Rh8 Na6 Rg8 b8B Nb7 Rd6 Be6 Nd7 Bb3 Re6 Bd1 Bh5+ Qg6 Nf6 Rg7 Rd6 Nb5 Ba7 Nbc7 Nb8 Bc3 Bc8 Be5 Rd7+ Ke6 Bac5 Qg4 Rd5+ Rd7 Bce7 Bb2 Rd6+ Ke5 Re6+ Kd4 Ba3 Qg7 Qe7 Kc4 Bc5 Rd4 Bd6 Rd2 Nfd7 Be5
2r1Q3/2pN1nnn/2K1BbPk/3q1Q1r/2b4N/2QnRNN1/2bn2RB/1b2N3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 Kf3 Kf7 g4 Kg6 b4 a5 d4 h5 e4 h3 b6 h2 e5 a4 b5 a3 e6 h4 g5 a2 e7 h3 e8Q+ Kh7 b7 Nd7 b8N Bd6 g6+ Kh6 b6 Be5 d6 Kg5 b7 Rh6 d5 Bg7 Na6 Nf8 b8N Bc3 d7 Bb2 d6 Rh5 Qd5 Kh6 Nc5 Nh7 Na3 Bf6 Nc2 Ba6 Qd3 Bc4 Qc3 Bd3 Ne1 Bc2 Rb1 a1N Rb2 Nb3 Ne4 Nc5 Bc4 Ne6 Ng3 Ng7 Be6 Bb1 Rg2 Bc2 Na6 Rc8 Nc5 Bb1 Be3 Bc2 Bd4 Bb1 Be5 Bc2 Kf2 f3 Ke3 f4+ Kd4 f2 Kd5 f1B Ngf3 Bc4+ Kc6 Bb1 Nh4 f3 Rhg1 h1B Re2 h2 Re3 f2+ Rg2 f1N Qf8 Qe7 d8Q Qf7 d7 Nd2 Qde8 Bc2 d8N Qd7+ Kb7 Qd5+ Nc6 Bb1 Nd7 Bc2 Rg1 Bhe4 Rg2 h1N Bd6 Nf2 Qff7 Be5 Qf5 Bf6 Be5 Bb1 Bd6 Bec2 Be5 Qa5 Nd4 Nd3 Ndf3 Qa2 Ne4 Qa5 Bh2 Qd5+ Ka7 Ne7 Ng3 Nc6+ Kb7 Nce5+ Ka7 Qd4+ Kb7 Nf7 Kc6 Qd5+
7B/5R1R/1b1b2KN/Q2Brn1r/b1rQr2P/RRq1N1p1/R1n1Q3/1nkb4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 d4 g5 h4 c5 e4 a5 b6 f5 b5 c4 b7 g3+ Kf3 c3 b6 a4 Bb5 g4+ Ke2 c2 Kd3 f3 Ra2 f4 Na3 f2 Bc4 f1N Nf3 g2 Qe2 g1B Ng5 g3 Bb2 c1R Nc2 a3 Ne3 Nc6 b8R f3 b7 Ra5 Ra8 f2 b8R Nd2 Rb3 f1B Bc3 Nb1 e5+ Kc7 Ke4 Bd7 e6 Kd6 Kf5 Qc7 Bb2 Nh6+ Kg6 Nf5 e7 Rh5 e8R Nb4 Re7 Ba4 Rh7 Nc2 Ra7 Qc5 Raf7 Qb4 Rh2 Qc3 Rf2 Bh3 Rf3 Bg4 Ba1 Ra7 Bb2 Re7 Ba1 Re4 Bb2 Be7 Ba1 Kd7 d6 Kc6 d7 Bd6 d5+ Kc5 d8Q Kd4 Qa5 Re1 Rf6 Re5 Nf7 Ke4 Nh6 Bf2 Rab2 a2 Rff7 Bg1 Ra3 Rc1 Rbb3 Re1 Bb2 a1R Rf2 Rc1 Qf1 Bd1 Qe2 Bb8 d6 Bc7 d7 Bd6 Be6 Kd4 Qe1 Kd3 d8Q Re4 Rh2 Bf2 Qf1+ Kd2 Bd5 Ra2 Ng2 Bb6 Ne3+ Be2 Qf6 Re1 Ba1 Kc1 Qd4 Bd1 Rd2 Re5 Qe2 Rb2 Ra2 Re4 Rba3 Rb4 Rd3 Qd2 Rdb3 Rc4 Qdd3 Qb4 Bh8 Qc3 Qd4 Rf1 Rc7 Rff4 Rce7 Re5 Ref7 Rfe4
1Q1b2Bb/2qnrb1R/8/B6n/b3QpP1/k1NN1BN1/r2N3n/R2nN1Kr w - - 0 1 illegal: No possible last move, all moves rejected
k3bn1r/B4r1r/2n1QQ2/4R1P1/n3pr2/1q1B2QK/n1N5/QbN1bRBQ w - - 0 1 illegal: No possible last move, all moves rejected
3Kr1B1/1r2Bqr1/1B1N1bnb/2P1k1n1/2n5/pN2B2Q/b2QRB2/1r1b1NR1 w - - 0 1 illegal: No possible last move, all moves rejected
1n1N1Q2/3q1B1N/1B4K1/1Ppb3B/1nR1RnR1/3r3B/2Q1b3/kBrrbb1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d5 h5 g6 c6 b6 f6 g7 c3 d6 c2 b7 Kb3 g5 f3 d7 f2 Kf5 h4 e4 h3 g6 a4 e5 h2 e6 a3 e7 a2 e8B Be7 Bh3 f1N Nd2+ Kb4 Ndf3 Kb3 Ne2 Bb4 Be3 Ra3 Bb6 c5 Nf4 Be1 Rc1 a1N Ne6 Ka2 b4 Rd3 Rg1 h1B Nfg5 Bd5 b5 Rh5 Rg4 Ne7+ Kf4 f5 g8B Kb2 g7 Ng3 Bh7 Nh1 g8B Rh6 Ke5 f4 Bgf7 Ng6+ Kf5 f3 Re4 Qc7 d8R f2 Rd7 f1B Nd8 Nf4 Bh5 Rg6 Bf7 Rg7 Bh7g6 Rg8 Nh7 Rh8 Kf6 Be2 Rde7 Qd7 Rc4 Ka2 Ree4 Bf1 Rb1 c1R Rbb4 Nc2 Qd2 Ka1 Ra4+ Na3 Qc2 Rg8 Bgf5 Rgg3 Bf5g6 Rdd1 Kg7 Rgd3 Bgf5 Na6 b8Q Be2 Qd6 Nb8 Qf8 Bcb7 Red4 Bg2 Re4 Bgf1 Kf6 Bd5 Rab4 Ne6 Rg4 Nf4 Re4 Nb1 Rbc4 Nc3 Kg7 Na2 Kh6 Ng2 Kg6 Nf4+ Kg5 Qc6 Re3 Nb4 Qd2 Rdc3 Bb1 Bef3 Qc2 Qd7 Ree4 Rcd3 Kh6 B3e2 Kg7 Ne6+ Kg6 Nf4+
B1qBR1Q1/b1B1QrN1/4n2K/PkB5/p2r2bR/r3bN1r/4n1RB/4nb2 w - - 0 1 illegal: No proof kernel
1rN2NRK/r4N1b/BQ3QPb/2rq4/R5nb/1nNQ3r/n4p2/kNb1B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 c5 g4 f5 d4 h5 g5 a5 b6 a4 d6 a3 b5 f3 d5 f4 b7 h3 b6 f2 d7 a2 d6 h2 Nc3 f3 Kf5 h4 Kg6 h3 Nb1 Na6 b8Q Nb4 b7 Ra7 Bd2 Nh6 Be1 Ng4 Qc7 Rg8+ Kh7 Bh6 b8N Rf8 Qd2 Kb3 e4 c4 e5 c3 e6 c2 e7 Kb2 Ba6 f1N e8N f2 Qd3 c1B Qb6 Nd2 Ne2 Nb3 Rg1 h1R Nec3 h2 Rg3 Rf5 Kh8 Rc5 Rg2 Rg1 Rg3 h1R Rg2 Qc7 d8Q Qf7 d7 Rh3 Qdf6 Qd5 d8N Bf5 Nf7 Bh7 Ned6 Rgh1 Nd7 Rf1 Bd2 Re1 Nf8 Re8 Be1 Rb8 g6 Bhg5 Nc8 Bh4 Na3 Bh6 Rc1 a1B Nab1 Na2 Rd1 Ne5 Rg4 Bc1 Rd4 Ng4 Ra4 Bh6 Qe3 Qh5 Ne6 Qe5 Rd8 Qd5 Qd3 Kc1 Rb4 Bb2 Ra4 Ba3 Rf8 Kb2 Rg8 Ka1 Nf8 Bac1
Bnn4k/3Nb2q/rR3P1B/1Rbr3R/3N1Q2/K1Nb1n1p/1N1n4/Q2Nr2r w - - 0 1 illegal: No possible last move
BNQ1N1R1/2r1b1n1/B1npbN2/1q3rr1/1Qn1b1n1/5PB1/2B3R1/K1k1b1B1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 Kf6 g4 Ke5 c4 Kf4 Kc2+ Ke4 Kb2 h5 c5 a5 b6 e5 f6 h3 b7 d3 g5 h2 c6 a4 g6 h4 c7 h3 f7 d2 b5 Qe8 g7 Rh5 b6 Nf6 g8B Ra5 Ba6 Be7 f8Q a3+ Ka2 Kf4 Qa4+ e4 Nc3 Raf5 Bb3 d6 Nf3 Qc6 Nb5 Ne8 Rg1 h1B Bc2 h2 Rg8 Rg5 Ne5 Ng7 Qb4 Be6+ Kb1 Bf3 c8B h1N Nc7 Qb5 Nd7 Bg2 Bb2 d1N Nf6 Ne3 Be5+ Kf3 Bd7 Ke2 Qc8 Bf3 Bg3 Bg2 Bd3+ Kd1 Ra2 Bf3 Re2 a2+ Kb2 a1R Nce8 Ra3 Bc6 Rc3 Ka1 Kc1 Bc2 Rc4 Bd5 Rc7 Bc6 Nc4 Bd5 Nd7 b8B e3 b7 Be4 f3 Nf2 Ba7 Ng4 b8N Nde5 Ba8 Nc6 Rg2 e2 Bg1 e1B
1Q2rr2/2KBbRb1/1pNB2R1/b2Q4/Pnn4q/7Q/bk1Nn2r/1B1B1B1n w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 f5 e4 g5+ Ke3 d5 Kd4 g3 h4 f4 a4 b3 c4 b2 c6 g4 c5 f3 h5 g2 h6 g3 c7 f2 c6 Bg7 Kc5 d4 Kb6 d3 h7 d2 Ra3 Na6 Nf3 g1B Rh6+ Nf6 Rg6 g2 Ra1 Rf8 h8Q Nb4 Ra3 Bd7 Re3 Qe7 c8Q Bh2 c7 g1B Qh5 Rh8 Qf8 Re8 c8B Bf4 Kc7 b6 Qh1 Rh2 Bca6 Bg5 Bae2 Bf4 Rd3 Bb5+ Rd7 Bc4 Qb3 d1N Nbd2 b1N Ba3 Nb2 Bd1 Nc3 Qh8 Ne2 Nd4+ Kf7 Qhf3 Nh5 Qh3 Nhg3 Nc6 Nh1 Qbd3 Ba2 Qd6 Ra8 Qb8 Nc4 Qd4 Nd3 Bd6 Nb4 Rg2 Bg3 e6+ Kg6 e5 Qh4 e7 Kf7 Qb7 Re8 e6+ Kg6 Qe4+ Kf6 Qd5 Bf4 Qb8 Be5 Rg5 Bc3 Bg2 f1R Be4 Na5 Bb1 Nc4 Rg4 Bc5 Rg1 Rg8 e8B Rf3 Beg6 Re8 e7 Rf4 Bgd3 Rff2 Qh5 Rf5 Rg5 Ke6 Rg6+ Kd5 Na7 Kd4 Q5f3 Ba1 Nc6+ Kc3 Qe4 Rff8 Qd5 Neg3 Bf1 Kb2 Nd4 Ne2 Nc6 Rd8 e8B Bc3 Bf7 Rde8 Be6 Bg7 Rf7 Bc3 Bf4 Be7 Bg4 Nc2 Bg3 Ba5 Bd6 Nb4 Bd7 Kc1 Be4 Bg7 Bb1 Kb2
1n1qrr2/3r2B1/Pb4bQ/1R2Q2B/B1N2b2/R3NBp1/nnr1Q1B1/bk3K2 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 h5 bxa5 c5 dxc5 hxg4 c4 Kf7 a4 Ke6 h4 Kf5 f4 e5 h5 d5 a6 g5 h6 b5 h7 d4 c6 d3 a5 e3 c7 Ke4 c5 e2 a7 b4 a6 d2+ Kf2 Kd3 c6 g3+ Kg2 e4 f5 e3 f6 g4 f7 b3 Nf3 b2 Ng5 Nf6 Rh5 Nd5 Nc3 b1R Nf3 Bf5 c8B Bg7 f8Q Rb7 c7 Nb4 Bb2 Bg6 Bd7 Na2 c8B Rc7 Ba4 Rd7 Qf4 Rf8 h8Q Re8 Qe1 d1N Nd5 Bd4 Kg1 g2 Qhh6 Bh8 Bf6 Nb2 Nd2 Bg7 Bd4 Be5 Qh2 Bf4 Nc4 Rf8 Bg7 Re8 Bc6 Kc2 Qa5 e1R Qc7 e2 Nde3+ Kb3 Qe5 Rc1 B8b7 e1B Be2 Rc2 Ba4+ Kb4 Rg5 Bc3 Bbf3 Rf8 Kf2 g1B+ Kf1 g3 Bh5 Bd4 Bef3 Kc3 Qe2 Bf2 Qe8 Bf6 Rb5 B6e5 Nf5 Bfd4 Nfe3 Bb6 Qe7 Bf6 Qe5+ Rd4 Rc5 Nd1 Qe7 Qc7 Bhg4 Nd7 Rd5 Rae8 a8B Nb8 Qe4 Qd8 Bg2 Nb4 Rf5 Rd7 Rb5 B6e5 Bh5 Bed4 Nd2 Kb2 Ra3 Bc3 Ndc4+ Kb1 Bc6 Ba1 Qe5 Nb2 Bcf3 Na2
2B1N2r/3nkP1r/B2R1R2/3B3n/3bqBK1/Nb1bB2n/bQ2Qp2/2rn3R w - - 0 1 illegal: No proof kernel
2n1B1nQ/1k3pbb/2q4R/nPR1r3/r1B3Q1/1b1KB1N1/1b1NB1rB/2Rn4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 b4 a5 g4 c5 e4 Kc7 g5 a4 e5 h3 b6+ Kb7 b5 h2 e6 h4 e7 h3 e8B a3 g6 a2 d6 c4 d5 c3+ Kc2 f3 d7 f2 g7 Ra4 d6 Qc7 d8R Nd7 Bc4 f1N Qd3 Qc6 Qd4 Ne3+ Kd3 c2 Ne2 Nd1 Bf4 c1B Be3 Rh5 Ng3 Bb2 Nd2 Re5 Rc1 a1N Qe4 Nb3 Qg4 Kb8 b7 Nb6 Rd7 Na5 Rc7 Be6 d7 Nc8 d8Q Bd5 Qdh4 Be6 Qh8 Bd5 Rf1 h1R Rf6 h2 Rd6 Rg1 Rh6 Qb6 Rcc6 h1B Rc5 Ka7 b8B+ Kb7 Bc7 Qc6 Bd6 Rg2 Bc7 Nge7 g8B Bg7 Bh7 Ng8 Be4 Be6 Bf3 Bf5+ Nge4 Bh7 Be2 Re7 Bh2 Re5 Qg6 Rf2 Ng3 Bd5 Ba2 Bb3 Qf5 Rae4 Qf3 Rg2 Qg4 Ba4 Be6 Bb3 Bc4 Rf5 Be6 Ra4 Bc4 Re5+
B5Nk/rr2P1n1/2K1B1bn/3R1N2/3bRq2/Q1pb3b/N2BB1rB/1rn4Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 d4 a4 g4 f3 b4 f2 d5 c3 b6 c2 g6 a3 b5 h4 b7 f6 g5 h3 g7 Kf7 d6 c4 Kd5 a2 e4 f5 e5 f4 g6+ Ke8 b6 h2 e6 f3 e7 Qd7 Bd2 c1N Nc3 Rh7 Be2 Nc6 b8B f1B b7 f2 Nf3 Nd8 Nd4 Qg4 Nf5 Nh6 g8B Ra7 g7 Ne6 Kc6 Bh3 Re1 h1R Qa4 f1B Qa3 Rh8 Rb1 a1R Rb5 Qh4 Na2 c3 Rd5 Rg1 Bh7 Kf7 g8B+ Kf6 d7 Rg2 d8N Rb1 Nf7 Bg7 Bh2 Qf4 b8Q Ba6 Qb6 Bd3 Qg1 Bc2 Qh1 Bd3 Ne3 Bg6 Nf5 Rbb7 Bc4 Bd3 Re4 Bc2 Be2 Bd3 N7d6 Rb1 Bf7 Rhb8 Ne8+ Kg5 Bhg8 Bd4 Nf6 Ng7 Be6 R8b2 Bgf7 Rbb7 Be8 Bf7 Ng8 Kg6 B8d7 Kh7 Bc8 Kh8 Bcd7 R7b3 Bc8 R3b2 Bb7 Bg6 Ba8 Rbb7
2nQ1Q1r/nB1Qp3/3b2nQ/Q3B1qR/1r4P1/r1bR2r1/bRNN2n1/2K3k1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 b4 Kf6 f4 a5 d4 c5 Kd2 h5 f5 Kg5 f6 Kf4 f7 Kg3 d6 Kf2 b6 e3+ Kc2 h3 b7 h2 b5 e2 d7 e1N+ Kd2 c4 d5 h4 b6 a4 d6 h3 Ra2 a3 Nf3 Ng2 Qb3 c3+ Kc2 Nf6 Ba6 Ne4 Ne1 Bh6 f8Q+ Bf4 Qf6 Nc6 b8Q Qg8 d8R Na7 d7 Qg5 b7 Nd6 Rb2 a2 Qg7 a1B Rg1 h1R Qe5 h2 Qa5 Rh3 Qba3 Rg3 Qbc7 Be5 b8Q Bf4 Kb3+ c2+ Ka2 Bb7 Nd2 Ndc8 Qad6 Bf3 Qh6 Bd6 Bb7 Bd5+ Nc4 Be6 Bf4 Bf7 Be5 Bg8 Rb6 c1N+ Kb1 Nd3 Nc2 Ndf4 Nd2 Ba2+ Kc1 Bc3 Rb2 Ng6 Rd1 Re1 Rh8 h1R d8Q Re4 Qcd7 Rb4 Rh7 Rhh3 Qdf8+ Rf3 Qbc7 Rg3 Qcd8 Rb8 Rh1 Ra8 Rh5 Kg1 Rf7 Rd3 Rf4 Rde3 Rd4 Ref3 Qfg7 Rf8 Rd3 Rh8 Qgf8 Nb5 Qac7 Ra3 Qa5 Nba7
b1NNB1B1/2PK2k1/1R5n/n1Qn1B1q/4npb1/2r3B1/2QB1r1Q/2r1Rrb1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 f5 c4 Kf7 e4 a5 g4 h5 b4 a4 b6 d3 b5 h4 b7 a3 c5 d4 e5 a2 b6 d2 c6 d3 e6+ Kg6 e7 h3 e8B+ Kg7 g6 h2 g5 Qd4 Qc2 d1N Nh3 d2 Na3 Qd7 Nb5 Qd4 Rb1 a1R Na7 Qe5 Bd3 Nf6 Re1 Be6 Nc8 Ne3 Rb5 d1N Bd2 Nfg4 Rb3 Kg8 g7 R8a2 Rb5 Kh7 g8B+ Kg7 g6 Nd5 Ng5 Bc5 Nf7 Bg1 Nd8 N1c3 Rb4 Rc1 Rb1 Na6 b8B Nab4 b7 Nh6 Bc7 Ne4 b8Q Ra3 Qa7 Rc3 Qc5 Rh7 Bd6 Bd7 c7 Nc6 Rb5 Na5 Rb6 Kf6 g7 Rh8 Bgf7 Rf8 g8Q h1B+ Qg2 Be6 Bg8 Rf7 Ke2 Bd7 Qh2 Kg7 Be7 Rf8 Bh4 Rf6 Bg3 f3+ Kf1 f2 Ke2 Nb4 Ke3 f1R+ Qf2 Qd5 Kf4 Qf7 Ke5 Nd5 Qh2 Qh5 Be2 Rf7 Bg4 Bf3 Bh3 Bc6 Ke6 Ba8 Rb5 Rf6+ Kd7 Bg4 Rb8 Rb6 Rb7 Rb2 Rb6 f4+ Be6 Be2 Bhf5 Bg4 Bg8 Rbb1 Re3 Rf2 Re2 Rcf1 Re1 Rc1
2Q1Kn1R/pn2bnkb/1BPb1r2/4Nb2/3r1Q2/3rBQ2/2R1rq2/B3B1NB w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 e6 c4 h3 g4 h4 b4 h2 f4 d3 c5 d2 b6 d4 f6 d3 b5 h3 f5 Bd7 g5 Be8 c6 Be7 b7 Nh6 b6 Rf8 Bg2 Bd7 Qf3 d1R Ra2 d2 g6+ Kg8 f7+ Kg7 Na3 Qc7+ Ke4 e5 Kd5 e4 Nc4 e3 Ne5 e2 Rc2 e1B Qf4 Bg3 f6+ Kh8 Qf3 Bf5 g7+ Kh7 Qf4 Nd7 b8B Re1 b7 d1R+ Bd2 Qb6 Bc7 Rad8 b8B Qf2 Bb6 Re2 Qf3 Bf4 Be3 Bg3 Bc7 Bf4 Bcb6 Bg3 Nd3 Bgd6 Be1 Rdd2 Bbd4 Rd1 Ne5 Rd3 Qf4 Rg8 f8B Nf7 Kc4 Rh8 Ba1 Kg8 Kb5 Rh6 Qf3 Rb8+ Ka6 Rb4 Qf4 Rbd4 Kb7 Nd8+ Kc8 Nb7 f7+ Kh7 Bd5 Re6 Nef3 Kg6 g8Q+ Kf6 Bh6 Nf8 Qfg3 Bh7 Ne5 Bf5 Q8g4 Bh7 Bhg5+ Kg7 Q3f4 Rf6 Qgf3 Rg6 Bec3 Nd7 Ng4 Bf6 Qf5 Bg8 Q3e4 Bd8 Ba5 Rh6 Bed2 B8e7 Bge3 Re6 Qff4 Rg6 Nf3 Re6 Bb6 Rh6 Rf1 h1B Be1 h2 Nge5 Bg2 Rh1 Bh3 Ng1 Bf5 Qg2+ Rg6 Qge4 Rf6 f8Q+ Kh8 Qe8 Nf8+ Qd7 Kg7 Qe6 Ng6 Kd7 Nf8+ Ke8 Bg4 Ngf3 Bf5 Rf1 h1N Qc8 Ng3 Rh1 Nd8 Rh5 Nb7 Rh8 Bgh7 Ng1 Rh6 Qh1 Rf6 Bg2 Ne4 Qh3 Ng5 Bh1 Nf7 Qhg3+ Rg6 Qgf3 Rf6
q1rR2BK/B7/5nr1/1qqn4/4kn2/1pQqNb1Q/2N2PRb/RNRR1n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 h5 a4 e5 g4 b5 d4 c5 a5 b3 a6 h3 g5 b4 g6 b2 a7 h2 g7 c4 f6 c3 f7 h4 Qd3 c2 Nh3 Na6 Qa3 Rh6 Qc3 Bb7 Kf5 e4 Nf4 e3 Bc4 h3 Ng2 e2 Be3 Rc8 a8Q Nc7 Rc1 h1Q Qaa3 Nf6 g8R e1N Rg4 Be7 f8N h2 Ne6 Nd3 Kg5 Nf4 Rg3 Kd7 d6 Kc6 d7 Bd6 Rg4 Qe8 d8R Rg6+ Kf5 Be5 Rg3 Qd7 d5+ Kd6 Rg5 Qd1 Rg4 h1Q Ba7 Qdf1 Bb3 Qb5 Ne3 Ba8 Rg2 Bc6 Rd1 c1Q Rg8 Qd8 Nd4 Qhf1 Ndc2 Qf8 Nd2 b1N Rh8 Qfc4 Rhh1 Qcc5 Bc4 Qd8 Qab3 Qa3 Rc1 Qaa6 Rhd1 Qab7 Qa3 Qa8 Qab3 Nfe6 Qa3 Bh2 Ba2 Nf4 Qab3 Na3 Nb1 Nc4 Qa3 Nd2 Bb3 Qcb6 Bc4 Kc5 d6 Bf3 d7 Ncd5 Qab3 Nf1 Ke5 Qf8 d8R Kc6 Qa3 Qfc5 Ba2 Q6a6 Qab3 Nh3+ Ke6 Qd3 Kf7 Qab5 Qa3 Nhf4 Bc4 Rh6 Kg7 Rg6+ Kh8 b3 Qab4 Ne7 Bg8 Ned5 Qe4 Bg3 Qf5 Bh2 Re8 Kd6 Qh3 Kc6 Nd4+ Kd6 Rd8+ Ke5 Ndc2+ Ke4
RqRRB2R/2NrqB1Q/K1b1n1R1/8/1Pn1k1n1/3rnp2/1b4q1/1NBQ3q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 Ke2 Ke5 Kd3 c5 Kc4 h5 g4 a5 d6 f5 g5 h3 d3 h4 b6 h2 Kb5 a4 b7 f3 g6 c4 d7 f2 g7 a3 Qd2 a2 Bb2+ c3 Qe3 h3 Bc1 c2 Qe2 f4 Nc3 f3 Rb1 a1Q Nd5 Rh7 Qd1 Nf6 g8Q Ng4 Ne2 Na6 b8R Bb7 Nc7 Qe7 d8R Bg7 Rdc8 Nc5 Nc3 Ra3 Ra8 Bc6+ Kb6 Kd4 e5 Ne6 Rb2 Bh8 Nb1 Rg7 Rg1 h1Q Qh7 h2 Ra2 Rc3 Ka6 Qg2 Be2 f1N Ra3 Nf4 e6 h1Q Ra5 Qb2 Rh5 Nfe3 Rh6 Qb3 Rg6 Ke5 d4+ Ke4 d5 Rd3 d6 Qc3 d7 Qe5 d8R Rf7 Nd5 Qb8 Nc7 Bb2 Rh8 Nc4 Bf1 Nd5 Be2 Nde3 Rf1 Qd6 e7 Rg7 e8B Rd7 Bf7 Qf6 Rf2 Qe7 Rhd8 Qgh3 Rh2 Q3g2 Bd2 c1N Bf1 Nb3 Bc1 Nd4 Rhh6 Nd6 Rh4 Rd2 Bb5 Ndc4 Rh5 Ne6 Ba4 R7d3 Rhh6 Bd5 Bae8 Bc6 Qg7 Rb3 Rh8 Rd7 Qh7 Rbd3
1B1r2n1/rbBk1qb1/4r3/bNBn1pB1/1RP2NBN/K1q2R2/3b4/Qr2Q3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 b4 a5 c4 g5 Kc2 d5 Kb3 f3 e4 d3 h4 d4 h6 d2 b6 d3 h5 g4 h7 f2 h6 a4+ Ka3 g3 b7 g2 e5 Bd7 e6 Ke7 b5 Qa5 b6 Bc6 Rh3 Na6 b8B Bb7 Ne2 g1B Bc7 Nb4 Nbc3 Ra7 Rb1 Bg7 Nb5 Nd5 Rf3 Qc3+ Rb3 Bh2 Bh3 f1R Nf4 Re1 Bg4 Ke8 e7 Re6 Qf1 d1Q Bd2 Qe2 Qa1 Kd7 Be3 d2 Bc5 Qc2 Rb4 d1R Ng6 Bf4 Nh4 Ba6 b7 Bd2 b8B Bb7 e8N Bgc3 Ng7 Rb1 Nh5 Qe5 Nf4 Qf6 Nd4 Qf7 Nb5 Rb2 Qe1 Rb1 Rb2 Ba5 Rbb3 Ngf6 Rb4 Rd8 h8Q Ng8 h7 Qd3+ Qc3 Qd4 Qa1 Qc3+ Ka2 a3 h8B Qc2+ Bb2 Qc1 Kb3 a2 Ka3 Qc2 Bf6 Qd3+ Qc3 a1B Bg5 Qc2 Qd4 Bac3 Qdg1 Bg7 Qd4 Qd3+ Qc3 Qc2 Qa1 Qc3+
b3R3/3N3B/2bQ1Nq1/2B1pbNR/k2N1r1Q/2R2Nr1/1P1n2qb/qq4nK w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 g4 h5 f4 a5 Kf2 c5 Kg2 a4 g5 c4 d6 h3+ Kh2 c3 b6 Kc6 f5 a3 f6 c2 f7 h4 d7 e3 b7 a2 g6 e2 g7 Kb5 d5 Qb6 d8N Nf6 g8Q Nbd7 b8N Ne5 d6 Ne4 d7 Ka4 Nf3 e1Q Qd5 Qg6 Nbc6 Qe2+ Bg2 Nd2 Qh7 Rg8 Ncd4 e6 Qh5 Bd6 f8N Rb8 Qc5 Rb4 Nf7 Rg7 d8R Bd7 Nb5 Rf4 N7g5 Qee4 Kg1 Qb7 Bf1 h2+ Kg2 Bb8 Qd6 Rg8 Bd3 h3+ Kf2 Bc6 Nd4 Be4 Rc8 Bf5 Rc3 Bc7 Re1 h1B Nd7 h2 Qh4 Bg2 Re3 h1B Kg1 Qe4 Na3 Qb7 Nab5 Rg7 Rb1 a1Q Re2 Bb8 Nc7 Qc6 Ne8 Qa8 Ne1 Bc6 Nef6 Bhe4 Rh2 Nef3+ Kh1 Ng1+ Nef3 Bc7 Qf2 Qg8 Rh5 Ba8 Qh4 Bec6 Rb3 e5 Rb8 Bb6 Re8 Qd5 Nb5 Bf2 Nd4 Bg3 Be4 Bh2 Bd3 Nc4 Be3 c1Q Be4 Qf1 Rc1 Nd2 Rc3 Qda2 Ne2 Qa1b1 Bc5 Qaa1 Ned4 Qf7 Nh3 Rg3 Nhg5 Qg8 Bd5 Qh7 Bg8 Qg6 Bh7 Qg2#
1Qb3R1/1NRn2n1/1Qnb1r2/3p4/6qK/2BR1BR1/NbR1qbP1/1kB1rn2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 Kf7 Kf2 Kf6 c4 d5 b4 e5 b6 a5 b7 h5 c5 a4 c6 h3 Kg3 d3 c7 d2 b5 h4+ Kg4 a3 b6 h2 Nf3 e4 Nc3 a2 Kh3 e3 Ne5 e2 Nf7 e1B Nd6 Rh6 Be2 Qe7 Bf3 Nd7 b8Q Qe2 b7 Ne7 Qb3 d1Q Qb6 Bf2 Re1 Qa4 Rd1 h1N Rd3 Ng3 Rb1 a1B Rb2 Nf1 Na2 Nc6 Rc2 Bb2 Kg4 Kg7 f6+ Kg6 f7 Be7 f8B h3 Bg7 h2 Bc3 h1N Nb4 Nhg3 Na2 Nh5 Kh3 Qd2 f5+ Kg5 f6 Kf4 f7 Rf6 f8R Ng7 Rg8 Ra7 Rd4+ Ke3 Rg4+ Kd3 Rg3 Nd4 Kh4 Qe2 Qa8 Qc4 b8R Ra4 Nb7 Bd6 Qaa7 Ra3 Ra8 Ra4 Qb8 Nc6+ Kh3 Qf4 Ra5 Re4 Ra3 Qd1 Rb3 Re1 Ra3 Qe5 Kh4 Qee2 Na5 Ba6 c8R Bb7 Rc7 Bc8 Nb7 Be7 Bh5+ Qf3 Re2 Bb4 B3d2+ Kc2 Rd3 Bd6 Bc3+ Kb1 Rc2 Qde2 Bg4 Qf5 Bf3 Qg4+
1n2R3/p1n1qR1K/4Q1N1/kN2n1Qn/q1qqB1r1/3b1NQ1/P1Q1Q2r/b1B5 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kc7 Ke4 f5+ Ke5 h5 d4 b5 e4 h3 g4 h4 c6 Kb6 d6 f3 c7 b4 d7 f2 d5 b3 g5 h2 g6 b2 d6 f4 Kf5 f3 g7 h3 Kg6 Ka5 e5 Qe7 d8N Nh6 g8Q Ba6 c8Q Nf7 d7 Bg7 Nc3 b1Q+ Bd3 f1N e6 f2 Qc4 Qb3 Qe2 Ne3 Nf3 f1Q Be4 Nd5 Nb5 Nc7 Qcc2 Qa4 Rg1 Qf2 Re1 h1N Rb1 h2 Nc6+ Kb6 d8Q Qfd4 Nce5 Ka5 Qd6 Ng3 Qgd8 Rg8 Kh7 Nh5 Ng6 h1Q Qg3 Qhh4 Qd5 Qdc4 Qdg5 Ba1 Rb3 Qf4 Re3 Qe5 Rf1 Qed4 Rf2 Qea3 e7 Ne5 e8Q Qe7+ Qf7 Qce6 Nc3 Bd3 Nb5 Qec4 Nd2 Qed6 Qe6 Qf8 Rf7 Qe7 Nf8 Rg6 Nf3 Rg8 Qgf6 Rg4 Ng6 Nbc6 Qfh4 Rd8 Qhf6 Nb8 Qg5 Rg8 Qh3 Rg2 Qhg3 Rh2 Qgf5 Rf8 Qb6+ Kb4 Rg7 Qef7 Bb7 Ned7 Re8 Ne5 Be4 Qe7 Qbe6 Ka5 Qfg5 Rf4 Rf7 Rg4
q6R/2b2Rb1/4qq1R/1Qnp4/n1B2QRr/1n1P1b2/3b2bR/kNNNB1K1 w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 a4 g5 h4 gxh4 b6 Ra6 b7 Rg6 b5 Rg5 b6 Rb5 axb5 a4 Kf2 Ke7 g4 Ke6 e4 Ke5 d3 Kd4 e5 d5 e6 f5 g5 h5 e7 c5 e8R a3 g6 h3 g7 a2 Bg2 h4 Kf1 c4 Qd2 h2 Qc2 h3 Nd2 c3 Qd1 f3 Nc4 c2 Re3 Kc3 Nb2 f4 Re7 f2 Bf3 Nf6 g8N Na6 b8R Bg4 b7 Nd7 b6 Bg7 Nf6 Rh4 Rf7 Nac5 Bd2+ Kb3 Ne4 Na4 Ne2 Ndc5 Rg1 h1Q Qc1 h2 Nd1 Be5 N4c3 Bc7 Ra8 Qg8 Ra5 Qa8 b8Q Bh5 Bg4 Qe4 b7 h1B Bd7 Qe6 Be1 B5f3 Qb1+ Ka3 Qb5 c1B Rg4 Bd2 Rb1 a1B Nc1 Bb2 Ra6 Ba1 Qf8 Bb2 b8R Ba1 Ne4 Bg7 Rb2 Bfg2+ Ke2 f1N Kf2 f3 Nec3 Bdf4 Kg1 Nd2 Qd6 Nb3 Rh8 Bd2 Rc6 Bh3 Qf4 f2+ Kh2 f1Q Rb6 Qe3 Rbh6 Qe6 Be8 Qf3 Kg1 B3g2 Rc2 Qfe4 Bc6 Q4g6 Bb7 Qgf6 Ba6 Be3+ Rf2 Bd2 Re2 Bf3 Rh2 Bfg2 Qe8 Bf3 Bc4 Bhg2 Qd7 Qf8 Qb5 Qa8 Nf2 Kb2 Nb1 Ka1 Nd1 Qac8 Na2 Qf8 Nc1 Qa8
Q2n2n1/1B5b/1nNp1k2/r3bq2/1Q1P1q2/nRKR1N2/1b3QBq/BBB3q1 w - - 0 1 illegal: No possible last move
qR1q1B1Q/N1q1R1n1/2Q2prn/1bBKb3/B7/3BqPR1/Nn2B3/nb2k3 w - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 b5 axb5 g5 Ke2 gxh4 Ke1 Ra6 Qd3 Rd6 Qd2 cxd4 Qd1 d3 Bf4 d4 Bc1 Rd5 exd5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kd7 g4 Kd6 b4 Ke5 c4 Kf4 b6 h5 b5 e5 b7 f6 g5 h3 c5 h2 g6 a4 c6 h4 d6 a3 b6 a2 d7 e4 c7 h3 g7 Nh6 g8B Bd6 Ba3 Be5 Bc4 Rg8 Bf8 Na6 b8Q Nc5 b7 Rg6 Qc1 Ne6 Nc3 Ng7 Nge2+ Kf3 Rg1 h1B Nb5 h2 Nec3 Qe7 d8R Bd7 Na7 Bb5 c8B Qc7 Bd7 Bg2 Re8 h1Q Rb1 a1N Re7 Bh3 Rb3 Bf5 Na2 Qg2 Qd8 Qh1 b8B e3+ Kd1 e2+ Kd2 Ba6 Ba4 Bb5 Bf7 Be4 Qc6 Qg2 Bc4 Qh1 Kc1 e1Q+ Kb2 Qe3 Rg5 d2 Bfd3 d1Q Rg3+ Kf4 Be2 Bb1 Bcd3 Qd5 f3 Qg8 Bc2 d3+ Ka3 d2 Kb4 Qd5 Qc8 Qdd8 Bcd3 Qh1 Rb2 d1N Rb3 Qh2 Qh3 Qb7 Bd6 Nb2 Bc5 Qba8 Qhc8 Qh3 Qb8 Qhd7 Qbc8 Q7c7 Qh3 Nf7 Qh8 Nh6 Bd6 Qe4+ Kc5 Ke3 Rb4 Qf4 Kd5 Kf2 Rb3 Ke1 Rb4 Qe8 Bc5 Qe3 Rb3 Ba6 Rb6 Bb5 Rb8 Qed8+
n1Rnn2N/3Bp1qQ/NrR5/5KNn/2rBP3/2q3kN/3Q1R1q/2rqb1N1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 b4 a5 f4 h4 c4 h3 g5 a4 b6 h2 g6 a3 c5 a2 b5 d3 b7 d2 b6 Rh4 g7 Qc7 c6 Ra6 Nh3 g1Q Nc3 g2 Bb2 d6 Qc1 d1N Qd2 Ne3 Rc1 a1R Rc2 Qc8 c7 Nc6 b8R Rc1 b7 Nc4 e3 Rb6 Ne2 Rg4 Bd4 Nd8 Rc3 Qf2 Neg1 Qh4 Ra8 Qh8 b8N d5+ Kd3 Kf5 Na6 Qb8 c8N Nf6 g8Q Bh6 Qg7 Rh4 Qh7+ Kg4 f5 Ne8 f6 Kg3 f7 Qg7 f8N Qbe5 Ne6 Rf4 Bc5 d4 Nd6 Bg5 Rb8 Bh4 Nf7 Qc7 Nh8 Qc6 Nf3 g1Q Neg5 Qg2 Rg1 h1N Rc8 Re4 Be2 Rg4 Rf1 Qh2 Nfg1 Qc7 Qc2 Qce5 Rf4 Qef6 Ke4 d3 Rc6 d2 Bd4 d1Q Qd2 Qe5+ Kd3 Qc5 Ke4 Qa5 Rc2 Qc3 Kf5 Ne5 Rf2 Nd7 Bf6 Rc4 e4 Rb2 N5f3 Nb6 Nfg5 Na8 Bg4 Rb7 Bd4 Rb6 Re2 Nf2 Rc8 Nd3 Rf2 Nf4 Rc6 Nh5 Rc8 Qe3 Rc3 Ra4 R3c5 Rac4 R5c6 Qc3 Re2 Qf7+ Ke5 Qg6 Be6 Qh6 Kf5 Qg7 Bf2+ Kg2 Bd4+ Bf2 Bd7 Kg3 Qh6 Qdb3 Qh7 Be1 Rf2 Qd1
r2N1b2/r1qp2b1/rB1kN1Bn/N2NbR1b/QK1PQ1b1/6Nr/1R5b/4B3 w - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 hxg4 a5 Qg5 a6 Nc6 b6 Nd8 b5 Nb7 axb7 Qd8 b8B Ke7 h4 a5 e4 c5 d4 f5 Kd2 g5 Kc3 f3 h5 f4 e5 f2 h6 g3 h7 f3 e6 a4 b7 g4 b6 c4 Bg2 f1B Bc7 a3 b8N a2 b7 f2 Bb6 Qc7 Na6 Nh6 b8N Be2 Nc6+ Kd6 e7 f1R e8Q Bb7 Qe4 Rf6 Kb4 c3 Na5 c2 Bd2 c1B Rh5 Bg7 Bf3 g2 Be1 g3 Rf5 Rg6 Bh5 Bg4 Ne2 g1B Qa4 g2 Nbc3 Bh2 Nd5 g1B Nc5 Bhe5 Ng3 Bh2 Rb1 a1R Ne6 Ba3+ Kb3 Ba6 Rb2 Rf6 Bg6 Bae2 Rf3 Ra7 Rf5 Rha8 h8N Bh5 Rg5 Beg4 Rf5 Rd1 Nc3 Rd3 Nf7+ Ke7 Nfd8 Kd6 Ne2 Rh3 Ng3 Rf8 Nd5 Ra6 Ndc6 R8a7 Kc4 Rfa8 Kb3 Bb4 Ncd8 Bd2 Ka3 Bg5 Kb3 Be7 Kb4 Bef8
1n4Q1/r6Q/1QB1pbnR/nb1rP2R/3b4/2N1KbR1/1R1RnrNr/2k3B1 w - - 0 1 illegal: No possible last move, all moves rejected
nk1NNq2/4b2b/r1Q5/B1NQ1b1B/3K1R2/1n1nRpp1/P2r3Q/3Qqr1Q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 d4 g5 h4 b5 e4 c5 h6 Kc7 d6+ Kb7 d7 f5 e5 b3 h7 g4 e6 b4 h5 f3 Ke3 c4 d5 b2 h6 f2 e7 g3 e8Q c3 d6 b3 Bd2 c2 Rh4 c1Q Nf3 f4+ Kd4 Na6 Be2 f1N Ng5 Be7 Ne6 Nc5 Na3 b1B Bh5 b2 Nb5 f3 Nbc7 Nd3 Nc5+ Kb8 Ba5 Nf6 Rf4 Nd2 Qg6 Bc2 Ne8 b1R Qe4 Ra6 Qc6 Rg8 h8Q Nd5 h7 Rg5 Rg4 Nb6 Rf4 Rb2 Rb1 Re5 Ra1 Na8 Rb1 Qb6 d8N Bf5 d7 Re1 Ra1 Rf1 Rb1 Rb5 Rb3 Qc7 Ra3 Qc8 Rc3 Rb2 Ra3 Nf2 Re3 Nd3 Qf8 Bg4 h8Q Bf5 Qff6 Qb1 Qh4 Qa1 Qh1 Qb1 Qe2 Qe1 Qd1 Bb1 Nf7 Rc2 d8Q Rb2 Qdd5 Nb3+ Kc4 Bh7 Nd8 Rg2 Qb2 Qf5 Qf2 Qf8 Qfg1 Rd2 Qgh2 Nb4 Kc3 Bbf5 Kc4 Nd3 Kc3 Na1 Kd4 Nb3+
KB2b1q1/6n1/N3RnrB/B3q2r/2N1QP1q/1Bn2R1p/4bQpb/kB2N3 w - - 0 1 illegal: No proof kernel
nN3K2/2bN4/n1Qqkr2/Q1rN2RR/1q1P1pp1/BqBbr1NN/6B1/b7 w - - 0 1 illegal: No possible last move
r2BRQ2/5Bb1/2R5/r5n1/bNp1P1qk/3N1bRB/1pQqnr2/1BB2n1K w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 d4 c5 a4 f5 g4 b5 Kg2 h5 e4 c4 g6 Kf6 d6 Kg5 a5 b3 d5 b2 g7 h4 a6 h3+ Kh2 b4 a7 b3 d7 Nf6 g8B Nc6 d6 Rh5 Bf7 Nh7 Na3 b1Q Qc2 b2 Ne2 Nd4 Rg1 Bg7 Rg3 Kh4 g5 f3 g6 f4 Kh1 f2 Be6 f3 Nf4 h2 Bd3 f1N Bh3 Qg8 d8Q+ Ng5 d7 f2 Qf8 Ne2 d8B Bd7 Ra2 Ba4 Ra1 Rb8 a8R Qa2 Ra6 Ra8 Rc6 Qb3 Ra2 Qc3 Ra1 Qd2 Ra2 Bh6 g7 Qe6 g8B Qg4 Bf7 Bg7 Bb6 Nf3 Ra1 Rha5 Bd8+ Ng5 Qb3 Nd4 Nc2 Ne2 Ra3 Ne3 Nb4 f1R+ Rg1 Rd1 Bb1 Nf1 Rg3 Re1 Qc2 Rd1 Kg2 Re1 Nfd3 h1B+ Kf2 Bf3 Ra2 Nf4+ Kg1 Re2 Ra3 Rg2+ Kh1 Ne2 Ra2 Re5 Ra1 Bb5 Ra7 Ba4 Re7 Rea5 Re8 Rf2+
1Q2N1Q1/1Kqk4/Qn6/1b5B/1p1N2rB/q1n2bR1/nR1pPbQ1/1BrQ3r w - - 0 1 illegal: No possible last move
N2qbBK1/1Rn3nR/N4R2/b2b4/p1QR4/1r1r1n2/1N3kPp/rRQ2Bq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 b4+ Kc4 d4 c5 d6 f5 b6 h5 b7 a4 d7 f3 Ke6 f2 Kf7 h3 d5 h2 b5 f4 b6 h4 d6 h3 Nf3 Nf6 Nd4 f3 Ba3 Nh5 Nc3 Ng7 Ndb5 Na6 b8N Bb7 Qc1 Nc7 Na6 Rb8 Rb1 Bc6 b7 Bd5+ Kg6 Rg8 Kh7 Be7 Bb4 Bf6 Nd1+ Bc3 Ba3 Re8 Bb4 Re3 Ba3 Rd3 e4 Nce6 Nbc7 Kd4 e5 c4 Nb2 Ba5 Bb4 c3 Na8 Nc7 e6 c2 e7 Ke4 e8Q+ Kd4 Qd2 c1Q Qee2 Qc5 Qc1 Qb6 Rg1 h1R Qec2 Ke4 Qc4+ Qd4 Ba3 h2 Bb4 Kf5 Ba3 Kg4 Bc5 Kg3 Ba3 Qe8 d8R Qc5 Rc8 Qd8 d7 Qd4 Bf8 Qb6 Be2 f1N Kh8 Nd2 Bf1 f2 Kh7 Qg5 d8R Nf3 Rd6 Qe7 Rf6 Qbc5 Re8 Qd8 Re7 Qd4 Ref7 Qa7 Kg8 Qd4 Be2 Qc5 Rd1 f1B Rd2 Qg1 Rd1 Kf2 Rd2 Rc8 b8R Rb3 Rb7 Rb8 Rd4 Rd3 Ra7 Rbb3 Rb7 Re3 Bd1 Bd3 Bc2 Bg6 Bd3 Bh5 Bf1 Red3 Re6 Bg6 Rd7 Be8 Rf7 Rb6 Ref6 Rbb3 Q1c3 Rd2 Bd3 Qf1 Re1 Nge6 Rh7 Rd1 Be2 Ra1 Rb1 Ng7+ Rf7 Qd1 Qc1 Re1 Bd3 Re3 Be2 Qg1 Bf1 Nce6 Rff4 Red3 Rf6 Nc7+
R3nQ2/2Bqq3/2NbBN1r/KNB1R2P/r1bQN1N1/2b1nk2/2p1p1r1/5q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 Kf7 Kd2 Kf6 Kc3 Kf5 Kb4 e5+ d6 g5 h4 e3 f4 Ke4 d5 e2 h5 g3 f5 g2 f6 g4 f7 g3 b6 c5+ Ka5 e1Q+ b4 c4 d7 c3 d6 c2 Be3 Ba6 Na3 Bc4 Ne2 g1Q Bc5 g2 Qd4+ Kf3 Nc3 e4 Nab5 e3 Ne4 Na6 Ra4 Qc8 d8B Nc7 d7 Nd5 b7 Bd6 f8Q+ Ngf6 b8N Rh6 Nc6 Rb8 Bc7 a6 d8N Qd7 Nf7 Ne8 Bd3 Qgf1 Rh2 g1R Re2 Rg2 Ra2 Rf6 Nh6 Rb7 Ng4 Qh4 Rd2 e2 Rd1 Ne3 Rda1 Bf7 Bc4 Rh6 Be6 Qhd8 Nba7 Qf6 b5 Qfe7 b6 Rb8 Nb5 Rb7 Ka4 Rb8 b7 a5 Kb3 a4+ Kb4 a3 Ka5 Qc1 Rb2 a2 Rb3 Qf1 Rd3 Rc8 b8N Rd8 Ra3 Rc8 Rb1 a1B Rb4 Bc3 Ra2 Qdd8 Nd7 Rb8 Ndf6 Qdd7 Na3 Rd8 Bf5 Rh7 Kb5 Qb1 B5b6 Bd5 Be6 Qc1 Ka4 Rh6 Rb5 Bc4 Re5 Rb8 Bc5 Rb3 Nb5 Rb4+ Ka5 Ba1 Kb6 Qf1 Ra8 Bc3 Ka5 Ra4+
3Nb1r1/r3K1b1/2n4R/2P1RBQq/1Q1pqr2/NRnB1pB1/B1b1q3/B5k1 w - - 0 1 illegal: No possible last move
QqrQ4/1b1n1NRQ/6K1/Qp4NQ/bn2n3/1B2R3/1P1Bp1b1/k2q1rrB w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 h4 fxe4 a4 g5 a5 gxh4 Qc2 Bg7 Qb3 Bd4 Qd1 Bb6 axb6 Bf5 Qa4 Be6 Qd1 Bc8 Ke2 Kf7 Ke3 a5 Kf4 c5 Kg5 e5+ Kh5 h3 d4 a4 g4 h2 f4 a3 f5 e3 f6 e4 g5 e2 b7 e1Q d6 Ke6 f7 Kd5 f8Q e3 g6 c4 d7 a2 g7 c3 Bg2+ Kc4 d5 c2 d6 Kb3 Bd2 e2 Qf1 Nf6+ Kh6 Rf8 Nc3 Ne4 Qb1 c1N Nh3 Nd3 Ng5 Qd1 Qf5 Nb4 Rg1 h1B g8B+ Rf7 Bf3 Bg2 Qd3 Qc7 d8Q Nd7 b8Q Bb7 Qg6 Bd5 Qh5 Rf4 Qbc8 Qb8 Qa5 Bf7 Rc1 a1R Kg7 Bd5 Nf7 h6 Kg6 Rg4+ Qg5 h5 Qb7 h4 Rc2 Nb6 d7 h3 d8Q h2 Qba6 Rf4 Qh5 h1B Qa7 Nd7 Qb7 Ra7 Qa8 Rc7 Rc1 Rc8 Qb1 Nef6 Ne4 Bc4 Neg5 Ne4 Rc2 Bd3 Rc6 Bc2 Re6 Rf5 Bg4 Rf1 Bf3 Kc4 Re8 Ba4 Re7 Kb3 Qd3+ Nc3 Re3 Ka2 Qf5 Ne4 Qh7 Nec5 Qg4 Rc1 Qgh5 Ka1 Bd5 Rb1 Bb3 Bb7 Bd5 Bg2 Be4 Bh3 Bh1 Ne4 Ne6 Rc7 Kg7 Qb3 Nh6 Rfe1 Rg6 Rc6 Ng5 Bg2 Bc4 Red1 Nhf7 Rg1 Bd5 Qc2 Bb3 Rc8 Kh6 Rbd1 Rg7 Rdf1 Kg6 Qd1
4nb2/2B2q2/k1r2R2/p2B2N1/pqR1r1n1/2bb1RrN/2P4Q/QKRRN2q w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 bxa4 Kd2 e5 f4 a5 b4 g5 h4 d5 h6 Kd7 f6 Kc6 f5 Kb7 b5 g4 h5 e4 f7 d3 b6 d4 f6 g3 h7 g2 h6 Nc6 Nh3 g1R Bg2 Ka6 b7 Qe8 b8R Bb7 Rc8 Ne5 Rc4 Rc8 Ba3 e3+ Kc1 e2 Bd6 e1B Nd2 Rc7 Bd5 Ng4 Nf3 d2+ Kb1 Rc6 Bc7 d3 Qe2 Bc8 Qh2 Rg3 Rf1 Bf5 Rh1 Bb4 f8R Qf7 Rf1 Bc3 Rg1 Bf2 Rc1 d1Q Ne1 Qd2 Rd1 Bc5 Rc1 Qg6 f7 N8f6 Rd1 Rg8 h8Q Ne8 h7 Qf4 Qe5 d2 h8N Bd3 Nf3 Qd6 Rf1 d1Q+ Ka2 Ba3 Rc1 Be1 Kb1 Nf2 Qa1 Bc3 Rh1 Qf1 Rg1 Qg2 Rgd1 R8g4 Ne1 Qg1 Rg8 Qf1 f8R Qh1 Nf7 Qff6 Rg7 Re4 Nfg5 Ng4 Rg6 Qg7 Rf3 Qf7 Rgf6 Bab4 Bb6 Qb8 Bc7 Bf8+ Bb6 Qd6 Bc7 Qb4+
Rn2NB2/2q1n3/1R5P/Qb1Bqnk1/bp1r1N2/1B1Qb2K/4pQ1r/2qQ1Q2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 f4 Kf6 Kf2 c5 Kg2 g5 d4 b5 a4 e5 d6 b3 a5 e4 h5 b2 a6 e3 h6 g3 d5 c4 a7 c3 d7 g4 d6 c2 Nc3 b1B Ne4+ Kf7 f6 Kg6 f7 Qc7 d8Q Ba6 d7 Ne7 Nf6 Rg8 f5+ Kg5 Ba3 c1Q Bc4 e2 Bb3 Bc2 Ne8 Qe3 f6 Qee5 Bd6 Bg7 f8Q b4 f7 Bb5 Ra6 Bh8 Rb6 Rg6 Ba2 Bca4 Bc5 Rd6 Bb3 Rd4 Nh3+ Kh5 Nf4+ Kg5 Kg1 g2 Kh2 g3+ Kh3 g1Q Qd3 Qge3 Ra1 Qc1 Qd1 g2 Qd3 Nc6 Bd6 Rc8 a8B Nb8 Bad5 g1N+ Kg2 Nf3 Kh3 Bc6 Ra3 Bab5 Ra8 Nh4 Qd1 Nf5 Bc5 Qcd6 Qc7 Ba4 d8Q Bcb5 Qa7 Rc6 Qa5 Qc7 Qd6 Ba6 Qd7 Rg6 Qdb5 Bf6 Qbd3 Rg7 Qh8 Bc4 f8Q Bcb5 Qh7 Rg8 Qhf7 Nd6 Bc6 Nec8 Ng6 Kh5 Qa6 Bg5 Qff1 Be3 Q8f2 Nf5 Bf8 Nce7 Qa5 Rg7 Bcd5 Rg8 Nh8 Rg2 Ng6 Kg5 Nf4 Rh2+
1Q1r1BQ1/q2b2rn/5pk1/N7/2B1R1Nq/K2B2rq/Rb2p2P/1BnB1Rb1 w - - 0 1 illegal: No proof kernel
1B1rbq1b/Q1R2qR1/RnR1PN2/1krN4/8/1pn2p2/1Qb2Q1K/2nR2rB w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 g5 e4 c5 h4 b5 d4 f5 a4 f3+ Kh2 b3 d6 Kc6 e5 g4 h6 b4 d7 b2 h7 b3 d5+ Kb6 d6 f2 e6 c4 a5+ Ka6 h5 f4 h6 f3 Bf4 Qf6 d8R Qg6 d7 Be7 Qd2 Ba3 Nc3 b1R Nh3 Qf7 Nd5 Kb5 a6 Ne7 a7 Bb2 Bg2 f1B Qf2 c3 Ng5 c2 Ra6 c1N Ne4 Bd3 Rd1 Bc2 Nef6 Rg8 h8R Rg5 h7 g3+ Kg1 Rf5 Bh1 g2 Rdg8 Qf8 d8R Bd7 Kh2 Be8 Rdd6 Nd7 Rdc6 Rd8 a8Q Nb6 Rg7 g1Q+ Kh3 Qg5 Kh2 Qg6 Bb8 Qgf7 Qa7 Bd4 Rhg8 Ra1 h8Q Rg5 Ne3 Rc5 Rh7 Ned5 Rgg7 Nc3 Ned5 Q7g8 Rgc7 Qgf7 Rg7 N1e2 Rd2 Rg1 Rd1 Nc1 Qhh4 Bb1 Qb2 Bc2 Qf2 Be3 Rg4 Bh6 Rg2 Bg7 Rg4 Bh8 Rg6 Nc4 Rg7 Nb6
R4n2/r1rb2R1/4pqN1/2pP2N1/q2qBRnQ/2R1Q3/k1B1r2R/2Knb1B1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 h5 d4 a5 Kd2 c5 b4 e6 d6 h3 b6 a4 g5 h2 f5 a3 b5 h4 f6 h3 d5 a2 g6+ Ke8 b7 Kd7 g7 Ne7 g8B Nec6 b6 Ne5 f7 Qf6 Qb3 Ra7 Ne2 Bh6+ Nf4 Rh7 f8R Ng4 Bg2 e3+ Kd1 Bg7 Nd2 e2+ Kc2 e1R Ne4 Qd4 Be3 Re2+ Kc1 Qa4 Rf5 Bc3 Bg1 Be1 Ng5 Qd4 Rb1 a1Q Be4 Qaa4 Ng6 Kd8 Rf6 Rc7 Qe3 Nd7 b8R Nf8 Rb7 Bd7 Rb3 Kc8 Rf4 Qf6 Bf2 Qfd4 Rc3 Qf6 Rf1 h1Q Bg1 h2 Bh7 Kd8 Bc2 Qhe4 R1f2 h1N Rh2 Qed4 Be4 Nhf2 Bc2 Ra6 Ra7 Nd1 b7 Bc8 Ra8 Ra7 b8R Kd7 Nh8 Kd8 d7 Ke7 Rb7 Kd6 d8Q+ Bd7 Bhe4 Ke5 Qg3 Qf2 Ng6+ Kd4 Ra3 Kc4 Qe3 Qh4 Qe7 Qhh8 Qh7 Qd4 Qh4 Qhf6 Rab3 Qb5 Rc3+ Kb4 Bb3 Ka3 Ba4+ Ka2 Bac2 Rc6 Rc7 Qba4 Rb7 Be8 Rf7 Bd7 Rg7 Rcc7
4b1Q1/1kb1NR2/N1RpR1RN/RP5b/3q1p2/n2Qn2K/r5rq/r2B1nB1 w - - 0 1 illegal: No possible last move, all moves rejected
QB1r1B1R/1N1k2n1/2p3bq/2r2b1N/2Qp1b1K/1r2qN1B/n4NNP/1n2R3 w - - 0 1 illegal: No proof kernel
1q1bBk2/1n1Q1N1R/2prB2r/4P3/2b1N1B1/3Br2p/3Kn1QR/B1q1nNq1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 b5 g4 h5 e4 f5 a4 h4 d6 f3 d7+ Kf7 a5 f2+ Kd2 f4 e5 f3 a6 b3 a7 b2 d5 b4 d6 h3 Rh2 b3 Qc2 Nc6 Bd3 f1R Ne2 f2 Nec3 Nb4 Ne4 Be7 g6+ Kf8 g5 Nh6 Ra3 Qe8 d8N Nf7 d7 Nd6 Nf7 Ba6 d8Q Nb7 Qd7 Rd8 a8B Bc4 Ra7 Rh6 g7+ Kg8 Qd1 Nc2 Qe2 Re1 Qeg4 f1Q Qg2 Na5 Bb7 c6 Bc8 Re3 Rb7 Qg1 Rc7 Kh7 g8B+ Kg7 Bh7 Kf8 Bg6 Nb7 Bh5 Ne1 g6 Bh4 g7+ Kg8 Kd1 Be7 Nbd2 b1Q Nf1 b2 Kd2 Qa1 Qd5 Qb1 Bcg4 Rdd6 Qe6 Bd8 Qd7 Kh7 g8B+ Kg7 Be6+ Kf8 Bhg4 Qa1 Bh7 Qa3 Bg6 b1N+ Kd1 Nd2 Bb2 Ndf3 Ba1 Nd4 Kd2 Ne2 Nh8 Qa4 Qc8 Bf6 Rh7 Qa3 Qd7 Qb8 Be8 Bd8 Nf7 Qc1#
4q2N/1Qn2N2/2prpR1R/2B1Nb2/N1r2K1R/1q3BQr/5nPb/1Nb1q1k1 w - - 0 1 illegal: No possible last move
B3qQ1R/q1bB2rQ/p6R/2NQ2qB/KQ2r2n/PQ2np1n/2br3N/k7 w - - 0 1 legal: proof: f4 c5 g4 g5 b4 e5 bxc5 h6 d4 Be7 dxe5 Bf8 Be3 Ne7 Bf2 Ng8 Bh4 gxf4 g5 Qb6 g6 Qd8 Bg5 hxg5 Kd2 Ke7 Kc3 Ke6 Kb4 d5 h4 f5 e4 b5 c4 g4 g7 f3 a3 a6 h5 g3 h6 f4 h7 f2 Qa4 d4 Bg2 f1N Ne2 d3 Rh4 d2 Nec3 d1R Nd2 Ne3 Nf3 Nf6 Rh6 Nd7 Nh2 Bd6 Qb3 Rd2 Rh1 Nf8 Na4 Bc7 c6 Rg8 h8Q Qe8 Qh7 Ng6 Bf3 g2 c5+ Rd5 Bh5 g1Q Bf3 Nfg4 Bg2 Bd6 c7 Nf2 Bf3 Bd7 c8Q Nh3 Qb7 Bc7 c6 Qg5 Bh5 f3 Nc5+ Kf7 e6+ Kf6 e7 Ke5 Qb8 Kd4 e5 Bf5 e6 Nh4 Qb6 Ra7 Ka5 b4 Ka4 Rf8 g8Q Bc2 Qb5 Rf4 Qa5 Qa8 e8Q Re4 Qef8 Qe8 Qb5 Rd7 Qb6 Rg7 e7 Ra8 Qe6 Rd8 Qb7 Bb1 Qbd5+ Kc3 Qeg8 b3+ Qb4+ Kb2 Qge6 Qd7 e8B Ka1 Qeg8 Qc8 Bd7 b2 Qb3 Qb7 Qge6 Qa7 Qed5 Bf4 c7 Be5 c8B Bc7 Nf1 Bc2 Nh2+ b1Q Bb7 Qe1 Ba8 Rd4 Qg6 Re8 Rh8 Rd2 Qh7 Re4 Rg1 Qd8 Rg6 Qg3 Rf6 Qe8 Rh6 Qg5
2q1N3/1B1n2pq/R1r3kB/K7/R1R2nr1/2qnbrQR/1B1RPp2/3bQ1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 f5 b4 Kf7 d4 c5 Kd2 a5 Kc3 c4 h5 a4 d6 f3 b6 f4 d5 g3 b5 a3 Kb4 g2 b7 c3 b6 a2 h6 f2 h7 c2 Nc3 f3 Rh6 Qd7 Bb2 c1N Ne4 Qd8 Qe1 Bd7 Nf6 Ra3 Ne8 Ba4 Ka5 Nd3 d7 Bc5 d6 Qc8 d8B Be3 Bg5 Nf6 d7 Nh5 d8R Nd7 b8R Nhf4 b7 Rb3 Rh4 Kg6 Bh6 Rb4 Rc1 a1Q Rc4 Rb6 Rh3 Rf8 h8R Rc6 Ra8 Bd1+ Ra4 Qa3 b8Q Rf5+ Qe5 Rg5 Ra6 Rg4 Qe7 Qb3 Qh4 Qc4 Qg3 Qg8 Rh4 Qh7 Nh3 g1R Bg2 f1Q Rc4 Rh1 Ng1 f2 Bd5 Rh3 Bh1 Rf6 Bb7 Rc6 Ra4 Nf8 Rdd4 Nd7 Rdc4 Qg2 Rh5 Qf3 Rd5 N3e5 Rd2 Ned3 Qg2 Qe4 Qh2 Rf3 Qg3 Qd4 Bg5 Qg8 Rh3 Qh7 Bh6 Qc3+
4NkB1/n1rQp2b/2nb1B1r/3q4/qB1R3B/1RP4N/BpQ4K/1rbn3R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 f4 g5 Kf2 d5 Kg3 b5 h4 b3 a4 g4 h6 b4 h5 b2 f6 b3 h7 d3 f5 d4 c3 d2 a5 d3 h6 Ra7 f7+ Kd7 a6 Ra8 a7 Nf6 Nh3 Nd5 f6 Nb6 Ra3 Nc6 Kh2 Bg7 Qe2 d1Q f8Q d2 f7 Ba6 Qf2 Rc8 Bc4 Rc7 Qe2 Nc8 Qe8+ Kd6 f8R Be5+ Rf4 g3+ Kg2 Qc2 Bg8 d1N Nd2 b1R a8B N6a7 Bad5 Nc6 Rd4 Bf4 Ne4+ Ke5 Nd6+ Kf6 Qd2 Qa2 Qc2 N8a7 Kg1 g2 Bdf7 Bg5 Kh2 Qd7 Bb2 Qe6 Qd7 Bd3 Bc1 Qf5 Be6 Be4 Ne8+ Kg6 Bf4 b2 Bd6 Bc1 Bb4 Qa5 Bc4 Qa4 Bcd5 Qc4 Bde6 Qc5 Ba2 Qd5 Rb3 g1B+ Kg3 Bf2+ Kh2 Be1 Be6 Rf8 h8B Rf6 h7 Bf2 Bg8 Bg3+ Kg1 Re6 Bg7 Bd3 h8B Bd6 Be5 Kh6 Bg3 Bh7 Kh2 Rg6 Bhe5 Rf6 Bh4 Re6 Nf6 Kg7 Ne8+ Kf8 Ba3 Rh6 Bb4 Bc5 Bef6 Bd6+
B1N5/1r2pn1k/n2QR1RB/r2p4/rN2n2K/1B2qPq1/1Bb2Q2/3qBNb1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 Kf7 b4 Kg7 c4 h5 f6+ Kh7 c5 a5 b6 d6 b5 a4 f7 d3 b7 h3 c6 h2 b6 a3 g5 h4 g6+ Kg7 c7 a2 Na3 h3 Bb2+ Nf6 Qd2 Rg8 Nf3 Bd7 Rg1 h1N Nc2 h2 Bg2 Ba4 Nb4 Ng3 Qc2 h1Q Nh2 Kh8 g7+ Kh7 Bc6 Rh8 f3 Nfd7 Kf2 Ne5 Rae1 a1R Qc5 d2 g8B+ Kg7 Qd4 Ra5 Re4 Na6 b8Q Bb3 Ba8 R1a4 b7 Bc2 Qe3 Rh5 c8N d1Q Qc7 Kg6 b8B Bg7 f8B Qd3 Bb3 Nf7 Qcb6 Rhb5 Re6+ Kh7 Bc7 Bc3 Bh6 d5 Be5 Qg8 Qd6 Bd2 Bec3 Rb7 Rg2 Qd1 Nf1 Bc1 Be1 Qg5 Rg1 Qh4 Qe2 Be3+ Kg2 Qg5 Kh3 Ne4 Qd2 Qe5 Rgg6 Bg1 Qf2 Qe3 Kh4 Qg3+
3RR1NK/4p2n/1pr2N1P/1rbRQ1B1/k6q/2nq1bR1/N3Bn1Q/2rR3q w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 c5 Ke4 g5 a4 b6 h4 c4 f4 b3 d4 c3 d6 Kc6 d5+ Kc5 a5 Kb4 f6 b2 a6 g3 f7 g4 f5 c2 h5 g2 f6 g3 d7 Ra7 Kf5 Bb7 Kg6 Qc8 d8R Qh3 h6 Rh7 d6 Qe6 d7 Ra8 a7 Na6 Rh3 Qe3 Qd4+ Kb3 Ne2 g1Q Nec3 g2 Be2 Qd3+ Ne4 Qf2 Rg3 g1Q Nc3 b1N Qe5 Nb4 Bg5 c1R Na2 Bg7 f8Q Rh8 f7 Nf6 Qg8 Nh7 f8N+ Ka4 Qge6 Rc5 Qh3 Qh1 Qh2 Nc3 Rd1 Rac8 a8R+ Ra5 Rb8 Rb5 Re8 Bd5 d8R Rc6+ Rd6 Qf4 Nd7 Qh4 Nf6 Rf8 Ng8 Rf1 Rbd8 Bf6 Qf5 Bd4 Qe5 Bc5 Kg7 Re1 Nef6 Bf3 Rd5 Rg1 Rd2 Rc1 Rd1 Qf5 Bd2 Nd3 Kh8 Nf2 Bg5 Qd3
QRqQ4/K1pr2R1/1B1bn1Bk/3N1r2/Q1q5/2Q3P1/1N1n1Qrp/Bbb2n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 h5 Kd2 f5 Kc3 Kf7 Kc4 Kg7 b4 a5 e4 f3 b6 f4 Kb5 h3 d6 a4 g3 a3 d5 a2 d7 h2 d6 h4 b7 h3 e5 f2 e6 f3 e7 Rh6 e8Q Kh7 Nd2 Qe7 d8B Bf5 d7 Rf6 Qa4 Rc6 Rb1 a1B Ne2 Be4 Nc4 Kg7 Nc3 Qe6 Be3 Bd6 Nb2 Na6 b8Q Nf6 Qb6 Nc5 Bd3 f1N Nd5 f2 Qh8+ Kg6 Be7 Rf8 d8Q Qc8 Qba7 Ne6 Bb6 Kg5 Bc2 Bh7 Bg6 Kh6 Ka5 Rf7 b5 Ne4 Qc3 Ned2 Bf6 Rd7 Bh8 Rc5 Qa8 Qb8 Ka6 Qc8+ Ka7 Nc4 Nf4 Rf5 Nd5 Ncd2 Bf6 Ne3 Rhe1 Nef1 Re4 h1R Rg4 h2 Be5 Ne3 Qf6 f1Q Qf7 Rg5 Qf2 Qc4 Nd3 Ng7 Bh5 Rg6 Ba5 Nef1 b6 Ne4 b7 Qe8 b8Q Rg5 Qce1 Bb2 Qeb4 Ba3 Ba1 Ned2 Qc3 Rg1 Qc8 Qh8 Rb8 Ne6 Bb6 Bc1 Nb2 Bb1 Be8 Rf5 Rg7 Qg8 Bg6 Rg2 Qf8 Qh8 Qff6 Qc8 Qe7 Be4 Qd8 Bb1
2k5/1p2r1Qb/br1qnq1b/1Rq1Nn1P/K3R1Q1/5RNR/1R1p3B/2Q2Bn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 d5 c4 Kd7 Kc2 e5 Kb3 g5 a4 g4 h4 d3 f4 d4 a5 d2 a6 d3 a7 e4 f6 g3 f7 e3 h6 g2 h7 e2 f5 e1Q c5 Qc7 h5 Qh4 f6 Qb6 c6+ Kd8 c7+ Kd7 Nc3 Qbd4 Ra2 Bh6 f8R Na6 f7 Ne7 Rh3 Nf5 Rb2 Qc5 Ne4 Qf6 Ka4 b3 Nf3 g1N Ng3 Rb8 Qe2 d1Q a8R Rg8 h8Q Rg6 Qg7 Qd2 Ra2 b2 Re8 b1B Rb2 Qf4+ Qe4 Q4d6 Bf4 d2 Qc2 Ba2 Qc1 Bc4 Re4 Bd3 Ra7 Ra8 Qh7 Rg7 f8R Re7 Be5 Nb8 Rf7 Ba6 Qg7 Nc6 Bf4 Nd8 Ne5+ Ke8 Rb5 Ne6 Rb2 Bd7+ Rb5 Rd8 c8Q Bc6 Ne2 Bd5 Bh2 Ba2 Ng3 Bb1 Qd1 Bd3 Qdg4 Bb1 Qc7 Rdd7 Qc6 Kd8 Rb2 Rc7 Rb5 Kc8 Rb2 Qcd5 Qc1 Rc6 Rb5 Q5c5 Rb2 Be2 Ra5 Ba6 Rab5 Rb6 Reb4 Nh4 Rf4 Bh7 Re4 Qg5 Rf5 Qf6 Rf3 Nf5
r2R2n1/p3BQ1n/2P1q3/pK1NqBb1/1Q1QR2N/1Qbr2Q1/2B2r2/k1q2b2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 g5 h4 f5 hxg5 b6 a5 bxa5 exf5 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kf7 Kd3 e5 Kc4 h5 f4 d5+ Kb5 e4 g4 e3 b4 h4 c4 d3 g6+ Kf6 g7 h3 c5 e2 c6 e1B g5+ Kf7 f6 Ke6 f7 h2 f5+ Ke5 g6 Kd4 f6 d2 Bh3 Qd7 Ra4 Na6 Bf5 Bf2 Nc3 Bh4 Ba3 Nb8 Qb3 Bd6 f8Q d1Q f7 Qe6 Qd8 Bg5 f8Q Qde1 Qf7 Be5 Bc2 Nd7 Nf3+ Ke3 Rf1 h1Q Nh4 d4 Nd5+ Kd2 Rf3 Nf8 Rd3+ Ke2 Rd1 d3 Qb6 d2 Qd4 Nh7 Bf5 Ne7 g8Q Bb7 Qgf8 Ng8 g7 Bef6 Qb8 Qhf1 Q8g3 Ba6+ Kc5 Qf4 b5 Qfe5 b6 Bc4 b7 Bb5 Rc1 d1R b8Q Rd3 Rd1 Ba6 Rc4 Qd2 Q8b4 Qc1 Rc3 Bc4 Re1+ Kd2 Re4 Qb1 Rc2+ Kd1 Rb2+ Kc1 Rd2+ Qb2 Qe7 Kb1 Qf7 Nh6 g8B Ka1 Qd7 Ba6 Bf7 Rhf8 B7g6 Ng8 Qf7 Rf3 Rd3 Rf2 Rd2 Bf1 Rd3 Rfd8 Kb5 Bg2 Qb4c3 Bf1 Be7 Qf4 Qcb4 Qc1 Bh5 Rd7 Bd1 Qbc3 Bc2 Bh8 Qdc4 Q3e1 Qcc5 Bc3 Qcd4 Qee3 Qbc5 Qf4 Qcb4 Qfe5 Qdc4 Qc7 Nb6 Q7f4 Rd1 Rb7 Rd8 Rd7 Qcd3 Rd4 Nd5 Qfe5 Qdc4 Rd3 Qcc5 Bcd2 Qcd4+ Bc3
R2B3N/pp3B1Q/PBR3qr/1nK1R3/1bBn4/Q3q3/4b3/rrBN1nqk w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 a4 Kg5 d4 f5 g4 h5 d6 h3 a5 Kh4 e5 h2 e6 f3 Ke3 Kg3 c6 h4 e7 h3 e8B f2 d7 Bd6 a6 Qb6 d8B Qb4 g5 Qb6 g6 Nf6 g7 Rh6 c7 Nc6 Qb3 Bb4 Bf7 Ne8 Qa3 Nd6 Nf3 Nb5 B1c4 Kg2 Ne5 f1Q Ng6 f4+ Ke4 f3 Kd5 f2 g8Q Qe1 Qh7 f1N Nc3 Qe3 Nd1 Rb8 Nh8 Bg4 c8R Be2 Ra2 Ra8 Rc2 Rb8 Bc7 Ra8 Re8 Rc8 Re5 Rg8 Bd3 Rg3 Kc4 Rg8 d5 Ncd4 d6 Rg4 d7 Qg6 Bb6 Rf4 Kd5 Rf6 Rc7 Rc6 Bb2 Rc1 d8B Ra1 Bc4 Qb3 Rg1+ Kf3 Ne3 h1R Bg5 h2 Be6 Qgd3 Be7 Nd2 Rg8 Qg6 Ra8 Rhb1 Bd8 h1Q Nd1 Kg2 Bc1 Qe3 Bf7 Nf1 Rcc8 Qhg1 Rc6 Ba5 Kc5 Kh1 Rc7 Bc3 Rc6 Bb4+
1QNq1r1k/K2r1r2/2nNQb1r/4R3/1p1QB1NR/nQ6/1Pnp3B/br4Q1 w - - 0 1 illegal: No possible last move
r1BB4/1R1b4/1N1NQQ2/1BPKnbR1/4B1pb/b2b1p1n/B1q1Q1n1/r5k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 Ke7 Ke3 Ke6 Ke4 b5 a4 g5 h4 g3 c4 d6 a5 b3 h5 b4 h6 b2 a6 b3 a7 g4 h7 g2 c6 Bd7 c7 Ne7 c8B Nd5 Nh3 g1B Nd2 Ne3 Ra5 Qc7 Nf2 b1B+ Qc2 Rg8 h8Q b2 Rh7 f5+ Kd4 f4 Nfe4 Kf5 e6+ d5 e7 f3 e8Q Kf4 Qe6 Rg5 Nd6 Kg3 Qhf6 Kf2 Rb5 Ng2 e4 Be7 e5 Nc6+ Kc5 d4 Kd5 d3 Rc5 Rb8 a8B Rg6 Bab7 Ra8 Qd1 Bh2 Qe2+ Kg1 Rb5 Rg8 Rh5 Bc2 Rg5 Ra1 Ba8 b1B Rb7 Rf8 Bb2 Bg3 Bc3 Qb8 Ba5 Bh4 Bd8 Qc7 Qef5 Qb6 e6 Qb2 Qfe4 Re8 Qee5 Bf8 e7 Qb3 Qee6 Ne5 N2e4 d2 Nc3 d1N Na4 Bf5 Nb6 Qc2 c5 Bh6 Nbc4 Nf2 Nb6 Rg8 e8B Nh3 Bf7 Rf8 Qd2 Rh8 Bb5 Bg7 Qe2 Bh6 Rh5 Bc1 Rg5 Ba3 Bc4 Qa4 Ba2 Bbd3 Be8 B7b5 Bc6 Qc2 B6d7 Ba4 Bb5 Rg8 Ba6 Be8 Bb5 Bd7 Rb8 Rg7 Kd4 Be8 Be4 Ra7 Kd5 Ra8 Rb7 Bd7
6k1/B1Nq3b/N2Qr3/R1pKbr1b/5r1r/4NB2/1PR1Npr1/N2nn1BQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 Kf3 Kf7 e4 h5 g4 c5 d4 a5 d6 a4 d7 a3 e5 h3 g5 a2 b6 h4 b7 h2 d5 h3 d6 Na6 b8N Bg7 Nd2 Ne7 e6+ Kg8 g6 Rh5 Bc4 Be5 g7 Nb4 Ne2 Nc2 Nb3 Nd5 e7 Ra6 e8N Rg5 Bb5 Nde3 Bc6 Rg2 Nc7 Qe8 d8B Qd7 Rf1 h1B Rf2 h2 Be4 Ra4 Nba6 Rb4 Qg1 Nd1 Be3 Bb7 Qf1 Bd5 Qe1 Bf7 Ba8 Bg6 Bd4 Bh7 Qg1 Kf7 g8N Kg7 Nh6 Ra4 Rb1 a1R Ng4 Kg8 Ne3 Rb4 Be4 Rb6 Ba8 Ra4 Ra1 Rab4 Ra5 Rc6 Nec1 Ra4 Na1 Ne1+ Ke2 Rb6 Bf3 Rab4 Kd2 Rc4 Ne2 Rcb4 Bc6 f3 Qf1 f4 Be4 Qh3 d7 Re6 Qg1 Rg4 Rg2 f2 Bf3 f1R Rf2 Bg2 Qh1 Rg3 Nac2 Qf5 Na1 Bh3 Rg2 Bg4 Rf2 Bh5 Rg2 Nf2 Kc3 Rc4+ Kb3 Nd1 Rf2 Rg4 Rg2 Rc2 Rf2 Rd2 Kc4 Rg5 Kd5 Qg4 Nb5 Rf5 Bb6 Rc2 Nbc7 Qh3 Be4 f3 Ba7 Qg4 Rg2 Qg7 Rf2 Qf7 d8Q+ Qe8 Qd6 Qd7 Nc1 Rf4 Rd2 Rf2 Ne2 Rg2 Qg1 h1R Qh2 Rf1 Qh1 Rc4 Rc2 Rff2 Ng4 Rf1 Bg1 Rf5 Ne3 f2 Bf3 Rcf4 Bh2 Rfg1 Nb5 Rgg4 Nbc7 R1g2 Bg1 Rh4
1k1rN2N/q1n1N3/1bb2pn1/5Kpr/5BBQ/1n4n1/P1Q3r1/1BRnNNR1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Kg4 g5 e4 b5 d4 f6 h4 b3 e5 Kc7+ e6 f3 h6 f2 d6+ Kb7 d5 c4 d7 b2 h7 b4 h5 b3 d6 c3 h6 c2 e7 Ra3 e8B Ka7 Kf5 Qb6 Nd2 b1N Bh5 b2 Bg4 Rh3 Ngf3 Nc3 Rg1 b1R Bd3 f1N Ne1 Bb7 d8N Rb2 d7 Rh5 Ne6 Bc5 d8N Bc6 Nc7 Na6 Ne8 Nc7 Qe2 Nd1 Qf2 Nh2 Nf1 Kb8 Bf4 c1N Qc2 Nb3 Rc1 Qa7 Be4 Nf3 Bd3 Ne5 Be4 Ng6 Bd3 Bb5 Be4 Bb6 Nc6+ Kc8 Ne7+ Kb8 Qg2 Rd2 Bb1 Bc6 Qe4 Re2 Qc2 Rg2 Ng7 Ne5 Nf3 Nd3 Ne1 N3f2 Nd5 Nh1 Ne8 Rh3 Nd6 Rd3 Ne8 Ne7+ Ke4 Rg8 h8Q Ng6 Kf5 Rg7 Ne7 Rd8 Qh7 Ne5 Qh8 Rg6 h7 Rh6 Qg7 Rhh2 h8N Ng6 Qh7 Rh3 Qh4 Rhh2 Qhf2 Rh5 Qh4 Ng3+
1B1bb2r/1R2br2/k3pnbN/p1R1R3/bQrN1RRq/6P1/Q5KQ/1n1B4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 d4 a5 f4 c5 Kf2 Kc7 g3 Kb7 d6 h5 d5 c4 b6 e6 d7 h3 b5 h2 f5 h4 f6 c3 d6 c2 f7 h3 Ne2 Bh6 f8R Qc7 d8Q Qe7 d7 Qg5 Na3 Na6 Nd4 Qf6+ Bf4 c1R Qh5 Bg7 Be2 Rc4 Nf5 Nc5 Nh6 Na4 Nc2 Qh4 Bd1 Ra7 Re1 h1B Nd4 h2 Rc1 Nc3 Bb8 Nb1 Rf4 Nf6 Qf8 Bg2 d8R h1B Qa3 Bd7 Rg8 Be8 Qa2 e3+ Kg1 Bf8 Rgg4 e2 Rc2 Be4 Kf2 Ra4 Rc5 B4g6 Kg1 Be7 Kf2 Qg5 Qh2 Bd8 Kg1 Bhc6 Kf2 Qh4 Kg1 Kc8 b7+ Kd7 b6 Rc4 Kf2 Bb5 Kg2 Ba4 Ref1 e1B Re4 Bef7 Rff4 Be8 Ree5 Bd2 Bc7 Be1 b8R Bb4 Rb7 Kc8 Rcd5 Bbe7 Bb8 Rc6 Rc5 Bf8 Rh7 Rf7 Rg7 Kb7 Rh7 Ka6 b7 Bb3 Rc4 Ng8 Ba7 Rd7 b8Q Ba4 Qb4 Nf6 Bb8 Rc8 Rc7 Bc5 Re7 Bd6 Rb7 Rc4 Rbb5 Ra7 Rc7 Rb7 Rcc5 Rf7 Rb7 B6e7
3bR1bq/6RP/1nK1nbN1/n7/2R1R1BN/Rp5n/1Bnp4/1QQrNkr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 b5 a4 d5 f4 g5 c4 d3 f6 d4 f7 g4 a5 g3 a6 d2 f5 Ke3 f6 Kf2 a7 d3 h6 b3 h5 g2 h7 b4 h6 e5+ Kb5 b2 c5 b3 c6 e4 c7 e3 Nf3 g1B Nh2 e2 Ra2 e1N Qg4 d1N Na3 d2 Qc4 b1N Bh3 Nc6 Nc2 Be6 c8R Be7 f8Q Nd3 f7 Nc5 Ra4 Nb7 Nf3 Nf6 Nh4 Nd7 Ne1 Bf6 Bg4 Nb6 Bb2 Rg8 Qc1 Kf1 h8N Nf2 h7 Nh3 N8g6 Qe8 Re4 Ncd8+ Rc6 Rg7 Qe7 Qh8 f8R Bg8 Re8 Ne6 Rcc4 Na3+ Kc6 Nc2 Rh2 Be3 Rg2 Beg5 Qa3 Bd8 Qaa1 Bgf6 Qab1 Rc8+ Kb5 Rc6 a8R Rc8 Ra3 Ra8 Kc6 Ra5 Red4 Re5 Nd3+ Re1 Re4 Rd1 Ne1 Rd7 Raa4 Rd3 Ra3 Rg3 Rge2 Rg1 Re7 Nec5 Rg7 Ne6 R2e3 Nec5 Re8 Ne6 Ree4 Na5+
n2Q2b1/1B2P1b1/2n2K2/2pp3k/rRQN1b1N/q1Q1B3/b2rRbQ1/Q2N2n1 w - - 0 1 illegal: No proof kernel
2N2QrQ/2rPrn2/kbB4n/1p3bNK/7r/6r1/N2RpRn1/BRq3RR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 h5 a4 c5 d4 Kc7 g4 Kb6 g5 e5 g6 c4 g7 h3 d6 h2 d7 b3 a5+ Ka6 d5 b5 d6 c3 f6 b2 f7 h4 Kg4 e4 f4 h3 f5 e3 f6 e2 Qd4 c2 Bg2 Nh6+ Kh5 Qc7 g8R Nc6 d8R Rh7 Nc3 b1N Bb2 c1R Na2 Na3 Nf3 Nc4 Rb1 Ne3 Ng5 Bf5 Ba1 Ne5 Bc6 Ng2 Qh4 Be7 f8Q Nef7 Rd7 Bd8 Rg6 Ka7 a6 Kb6 a7 Ka6 Qd4 Rc3 Qe5 Rg3 Qc3 Rb8 a8N Qc8 Qe5 Bb6 Qee8 Qc7 Qh8 Rg7 Qef8 Rg8 Rg7 Re8 Rg6 Re7 Rd8 Be3 Nb6 Bf2 Nc8 Bb6 Bf3 Qc1 Bc6 Ne5 f7 Rc7 Rd1 h1R d7 h2 Rd2 Rf1 Re8 Rf4 Ree6 Re4 Ref6 Be6 Rf1 Bf5 Rh1 Ree3 Qd6 Re4 f8R Ree3 Rff6 Nef7 Qf8 Re7 Rg1 Bh3 Rf2 h1R Rgd6 Rh2 R6d4 Bf5+ Rh4 Rb3 Nf3 Rh3 Ng5 Rhg3 Rh2 Rb4 Rhh1 Rh4+
2B1Q2b/3pB1B1/rN1PBbN1/1R1N2Qb/bq2B3/2n1p1bK/1rrR4/2k2n2 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 d4 Kf7 g4 Kf6 f4 a5 Kf2 h5 Kg2 e5 c4 e3 b6 h3+ Kh2 e4 c6 h4 d5 e2 c7 e1B f5 Ke5 b7 a4 f6 e3 d6 Ke4 f7 a3 c5 a2 g5 Ra6 c6 Be7 f8Q Bf6 g6 Nh6 g7 Nf5 g8B Ng3 Be2 Qe7 Nf3 Nf1+ Kg1 h2+ Kg2 Qe8 Be6 Bg3 Ne5 Rh5 Rg1 h1B+ Kh3 Bf3 Ng6 Rb5 Rg2 Bh5 Bd3+ Kd4 Qe1 Rb2 Nc3 Qf7 Rb1 a1B Qg8 Bh8 Qd2 Qf4 Nd5 Rc2 Qa5 Qe4 Nb4 Kc3 Qg5 Rb2 Nd5+ Kb3 Bd2 Qb4 Be4 Bf6 Bf3 Kc2 Re2 Bh8 Bc1+ Kd1 Be4 Rc2 Rb3 Baf6 Qe8 Rb2 Bd2 Rc2 Bc3 Kc1 Rd2 Rb2 Ra3 Rc2 Ra5 Rb2 Kg2 Rc2 Rb5 h3+ Kg1 h2+ Kg2 h1R Ba1 Rg1+ Kh3 Rg2 Bd4 Ra1 Bc3 Na6 b8B Bb7 c8N Ra5 c7 Bc6 Ncb6 Nc5 c8B Ra6 Bc7 Na4 Bd8 Rb2 Bd4 Nc3 Be7 Re2 Rd3 Rec2 Rd2 Bfe5 Ra5 Ba4 Rb5 Bef4 Bdf6 Be5 Bg7 Bf6
1k4rr/1q1pp1RR/1n1bQrBN/2r4B/1PbNB2B/1K4Q1/nnrN4/B7 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 g4 a5 b4 d3 Kc3 a4 f4 d2 b6 h3 b7 a3 f6 h2 g5 a2 f5 h4 g6 h3 g7 Rh4 Qg4 d1N+ Kb3 Qb6 c4 Kd8 c5 Kc7 f7 Qg6 c6 Ra7 f6 Na6 Qe6 Rh6 Nf3 Nc3 Ng5 Ra8 Bd3 Qe4 Be3 Rb8 Bf2 Rh5 Rg1 h1R Nd2 h2 Rab1 a1R Bc2 Nh6 g8B Na2 Bh7 Nf5 Bd1 Nd6 Rg3 Bg7 f8B Qd4 f7 Be5 Bg7 Qe4 f8Q Rg1 Qfg8 h1R Nf7 Nc4 Rh3 Ra8 b8N Bd6 Be2 Rg6 Rg1 Rf1 Ba1 Rf6 Bf5 Rh8 Rh7 Nb6 Bh5 Rc1 Nh6 Bb7 Bh4 Nc5+ Kb2 Nca4+ Kb3 Nb2 Qg6 Kc8 c7 Qg2 Nc6 Ba6 Nd4 Rc5 Bc2 Kb7 c8B+ Kc7 Bb7 Rag8 Qg5 Kb8 Qge5 Qe4 Rgg7 Rc1 Qg3 Qf3+ Bd3 R1c2 Ba8 Qc6 Bdg6 Qc7 Bc6 Qb7 Bce4 Bc4+
K6Q/p1Rnn2B/kqRB3r/2p1R3/br2r1Q1/4NP1N/5r1b/R1bNR1r1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 c5 g4 Kc7 b4 Kb6 d4 e5 d6 h5 d5 h3 g5 h4 g6 h2 d7 h3 d6 Kb7 g7 Rh4 b6 Rh7 b5 Na6 Qg4 Nh6 g8N Qe8 d8R Bf5 f3 Rc8 d7 Nb8 Nf6 Bd6 Nd5 Qe6 Re8 Ng8 d8R Nd7 Nbc3 Rh6 Bd3 Rb8 Rc8 Ne7 Rc6 Bg6 Rec8 Be8 Nd1 Bc7 Bd2 Qd6 Be1 Qe6 Bg3 Qg6 Kd2 e3+ Kc3 e4 Kc4 e2 Bd6 e1B N5e3 Bd2 Bb1 Bc1 Bc2 Ng8 Kd5 Qf6 Ng2 e3 Bh7 e2 Nge3 Bg6 Re8 e1R Re5 Bc2 Ra3 Ba4 Ra1 Kc8 b7+ Kd8 Nf1 Re4 b6 Qg6 Nfe3 Qf6 Ne2 Qg6 Re1 h1R Nf4 h2 Nh3 Rf1 Nc3 h1R Ncd1 Rc8 b8Q Rf2 b7 Rg1 Qa8 Qf6 b8R Qg6 Rb7 Rb8 Bf8 Bd6 Rbc7 Qf6 Re6 Bh2 Bd6 Qg6 Qb7 Qf6 Qb2 Qg6 Qh8 Rbb4 Re5 Qf6 Rb7 Qg6 Ra6 Kc8 Rc7+ Kb8 Rac6 Qf6 Rc8+ Kb7 R6c7+ Ka6 Rc6+ Ka5 R8c7 Qg6 Ra6+ Kb5 Bf8 Bf4 Rf6 Ka5 Rd6 Rb5 Kc6 Bh2 Rf6 Nb6 Kb7 Nd7+ Ka8 Rbb4 Rff5 Qb6 Rf6 Kb5 Rfc6 Ka6 Bd6 Ne7
2kbN1q1/1n1NBQB1/5BB1/1r4Qr/PQb5/npK3r1/pB3n2/b2RR2r w - - 0 1 illegal: No proof kernel
Q1b4B/1r2b1R1/1Q1N3r/2Rbr1p1/nKB4q/1p1NN1N1/k1b2N1P/1nn3Q1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 Ke7 d4 Kd6 Kd2 g5 e4 b5 a5 f5 h6 c5 a6 f3 h7 f2 e5+ Kc7 a7 Kb6 d6 c4 d7 b3 Kc3 f4 d5 Kc5 d6 f3 e6 b2 e7 Na6 e8N Rb8 a8N Ne7 Nb6 Rb7 Nd2 b1B Bb2 Bc2 Nh3 Qc7 Be2 f1B d8Q f2 d7 Qf4 Nd6 Qh4 Nd5 Bg2 Ne3 f1R Nf2 Re1 Ndf1 Bd5 Bd3 Re2 Ng3 Re1 Qe8 Re2 d8Q Re1 Kd2 Kb4 Qb6 Nc5 Ra7 Kb3 Qed8 b4 Bc3 Rg8 h8N Na4 Nhf7 Ka2 Bh8 b3 Ne5 Rg6 Be2 Rh6 Ned3 Nc6 Rf1 Ne5 Ra5 Be7 Rc5 Nc6 Qg8 Nd4 Qe8 Nb5 Qec6 Ra7 Qa8 Na3 Qc1 Rb7 Qd1 Nb2 Kc3 Na4+ Kb4 c3+ Nfg4 Bb1 Rf7 c2 Rg7 c1N Bf1 Bc2 Be2 Rh1 Qf1 Nb1 Qg1 Qh3 Ngf2 Qh5 Qg2 Re1 Qg1 Qg4+ Nf4 Qh5 Bc4 Qh4 N4d3 Re2 Nef1 Re4 Ne3 Re5
8/5bB1/N3K1Rb/n1Q1Rnp1/2R1nrP1/B1rQNQ1p/k2nb1Q1/3Qr1q1 w - - 0 1 illegal: No proof kernel
2R4n/2QbQNK1/3PnpR1/1r3r1B/k3qp2/2Q2nb1/2rBbQ2/N4BrQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Kg4 a5 Kh5 h3 b4 h2 e4 c4 d4 c3 g4 a4 b6 f6 g5 c2 d6 Kc6 e5 a3 e6 a2 b5+ Kd5 d7 h6 Kg6 h5 e7 h4 e8B h3 b7 Nc6 b8Q Ra5 b6 Nh6 b7 Rb5 Nf3 Bc5 Qc7 Nf7 b8Q Nce5+ Kg7 Rh5 g6 Qe7 d8Q+ Bd7 Qba7 Rf5 Rg1 h1B Na3 h2 Bd2 c1R Ng5 Nh8+ Nf7 Nf3 Nc2 Qe4 Qe7 Bg2 Qaa5 h1R Qc3 Bb6 Rb1 a1N Rb4 Bh3 Rc4 Nb3 Na1 Nc5 Qe2 Bg4 Qf2 Rc2 Rg2 Qe5 Rg3 Rg1 Rg2 Ke4 d5+ Nd4 d6 Kd5 Nd8 Rg5 Qc8 Rb3 Qfg3 Ra2 Be2 Rf1 Kg8 Rb5 g7 Rf5 Bh5 Qe4 Nf7 Rg1 Bf1 Rc2 Qh3 Bf3 Qh1 Be2 Qcd8 Nce6 Rc8 Ba7 Qdc7 Nf3 Kh7 Bf2 Rg5 Rg3 g8Q Rg4 Qg6 Rg1 Rg2 Be1 Qg3 Bf2 Qgh2 Bh4 Rg6 Bg3 Kg8 Rc5 Qb2 Kc4 Qc3+ Kb5 Qf2 Ka4 Kh7 Rb5 Kh6 Nd8 Kg7 Ne6+
2r2N1k/5rrb/2Qp2P1/2Q2Q1b/3rRnn1/nBNB1pQQ/K1qB4/R5b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 c4 Kf7 Kc2 Kg7 Kb3 h5 e4 a5 g4 f3 g6 f4 e5 d3 c5 h4 b6 f2 b7 a4+ Ka2 h3 b4 d2 b5 f3 e6 h2 e7 a3 e8Q Ne7 g5 Nd5 c6 Bc5 b6 Ra7 c7 Nc6 b8Q Ne5 b7 Nf4 Nc3 Ng4 Bd3 f1B Qc2 d1R Nh3 Bg1 Bd2 d6 Qc6 Bd7 c8Q Be8 Qf5 Qc7 Qbc8 Rh7 b8Q Kh8 Qbb6 Rg7 Qf2 Ra8 Q8d7 Rc8 Qg3 Be2 Rb1 Rf7 Rb4 Rg7 Re4 Rf7 Kb3 a2 Qfc5 a1N+ Ka2 Bf1 Qb1 Nc2 g7+ Kh7 g8B+ Kh8 Qdf5 Na3 Qb2 Rg7 Bb3 Bh5 g6 Be2 Ba6 Bc4 Ng5 Bg8 Ne6 Bh7 Nf8 Rf7 Be3 Rd5 Qbg2 Rd4 Q2h3 Rg7 Qe8 Qc6 Bd2 Qa4 Qec6 Qc4 Q6d5 Qd3 Qdc6 Qc2+ Ka1 Rf7 Bd3 Bg8 Na4 Bf2 Rb1 h1R Rf1 Bg1 Qhh4 Rh2 Nc3 Re2 Re7 Bh7 Qhh3 Rg7 Re8 Qc1+ Ka2 Ree7 Re1 Ref7 R8e4 Rd8 Nb5 Qc3 Ra1 Qc1 Nc3 Rc8 Be6 Qd1 Bb3 Qc2+
1q1BB1R1/2bQ3N/nN1prP1B/K1n2b2/3R1Qr1/2N1B2p/2B1b2n/n1r1k3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 c4 h5 b4 a5 g5+ Kg7 g6 Kh6 f6 e4 c5 a4 c6 h3 f7 h2 c7 d3 Kc3 h4 b6 d2 g7 a3 b5 e3 f5 Kg5 b7 Kf4 b6 Kg3 f6 Kf2 Bd3 a2 Nf3 h3 Bc2 e2 Ng5 e1N Nh7 Bd6 f8B Qe8 Rg1 Bg3 Kb4 h1R Nc3 Nh6 g8B Ra6 Bf7 Ng4 Bh6 Rg8 Bh5 Qe5 Be8 Nh2 Qg4 d1B Qf5+ Bf4 Be3+ Kf3 Rg2 Be2 Rd1 a1N Rd4 Rg4 Qe6 Bg3 Rg1 Qf4 Qd6 Nd3+ Kb5 Nc6 b8B Ncb4 b7 Rb6+ Ka5 Na6 Ba7 Ndc5 b8Q Rc6 Rg2 Rc1 Bb6 Qe5 Qe7 Re6 Qd8 Bb7 c8N Be4 Bc7 Bf5 Nb6 Qd6 Qdc8 Qf8 Bd8 Bc7 Rg1 d6 Qd7 Rh4 Rg8 Rg4 Qbc8 Kg2 Qa8+ Kf1 Qe4 Ke1 Qf4 Qe7 Qb5 Qd7 Qa4 Qc8 Qd7 Qb8
R2N1k2/1b1r4/Qpr1Q2K/3B3N/QnP5/1b2pnR1/qBNn3b/r1r1Q1Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 d5 Kf3 g5 Kg4 e5 h4 e4 f4 b6 c4 b3 a4 b2 a5 e3 a6 d3 a7 d2 h6 d4 Kh5 g4 h7 g3 f6 g2 f5 d3 f7+ Ke7 f6+ Kd7 Rh3 Ba3 f8N+ Ke8 f7+ Ke7 Qa4 d1R Ne6 d2 Ne2 g1N N2f4 Qd4 Rg3 Nc6 f8Q+ Kd7 Qh6 Ke7 Nd8 Be6 Bg2 Bd5 Qe6+ Kf8 Be4 Bb4 Na3 b1R Bb2 Bd6 Nc2 Nf6+ Kh6 Rbc1 h5 Nb4 Qa6 Bc6 Bd5 Ne4 Ra4 Rc8 a8Q Nf3 Ra5 Rg8 h8Q Bb7 Ra4 Qd3 Qc3 Rc6 Ra2 Bc7 Qa4 Rg7 Q8a6 Rf1 Ra1 d1B Qe1 Rh1 Qf1 Qa3 Nd4 Rh4 Q4a5 Rc2 Rg5 Rd7 Kg6 Nc5 h6 Rch2 h7 Na2 Qa7 Re2 Nh5 Ne4 Kh6 Re1 Qh1 Bh2 Rg3 Nb4 Qg2 Rf4 Qg1 Nh4 Qb5 Qb3 Ra6 Qa2 Qa4 Rf5 Qa8 Bb3 Qc8 Rff1 Ra8 Ba6 Qb7 Nf3 Qa7 Bb7 Q7a6 Rg7 h8Q+ Rg8 Bc1 Ned2 Nc2 Rd1 Qe5 Rg7 Qa1 Rd7 Bb2 Rb1 Qg2 Rbe1 Qd1 Rg1 Qde2 Rgf1 Qg1 Ra1 Qef2 Rfb1 Qfe1 Rc1
n2Q3Q/5N1P/q3R1B1/BbKr1bN1/5k2/N3Rprp/R2N1n1N/2nr2bb w - - 0 1 illegal: No proof kernel
R3nrkb/1Rn1r1pR/8/2p5/n1P1b1Bb/rB2B1n1/2B2B2/N2QQqKN w - - 0 1 illegal: Other
3r3K/1Bb2PRB/1NB2bQR/3r3B/6np/n2rp3/4R1bB/N1bQ1qnk w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 c4 Ke5 b4 Kf4 c5 d5 g6 e5 g5 a5 b6 h5 c6 a4 g7 d3 Kc3+ d2 b5 e3 b7 a3 b6 a2 g6 e4 Kd4 e2 c7 e1B Bb5 Ra5 Ne2+ Kf3 Ke5 Kg2 f4 d4 f5 d3 f6 Nh6 g8B Be6 c8B Bb3 g7 Bh4 Bf7 Be1 g8B Ba3 Nec3 Bd5 Na4 Na6 b8R Qf8 b7 Nb4 Bc6 Nc2 Bh7 Ng4+ Kf5 Bb2 Kg6 Na3 Nb6 Bg3 Ra8 Bd6 b8Q Bc7 B8b7 h4 Rg1+ Kh2 Ra6 e3 Qe8 Rc5 Re1 Bh1 Re2+ Bg2 Qe4 Rd5 Qe6 Qd6 Kg7 Rd8 Bh5 Qf4 Qf7 Qf5 Qg6 Qf1 Ra7 Kh1 Ra6 Bc3 Bb2 Bb4 f7 Ba5 Qc1 d1R Be5 d2 Bh2 Rd3 Qc2 R8d5 Qc1 Bc3+ Kg8 Bb2 Qc2 Bc1 Kh8 Re1 Qa4 d1N Nd2 Nc3 Nb3 Red1 Rb1 a1B Qd4 Bab2 Na1 Rd6 Qa4 R3d5 Qb3 R1d3 Qd1 Rd7 Ra8 R7d6 Rg8 Rd7 Rg7 R7d6 Rc2 Ne2 Rd2 Ng1 Re2 Be5 Rb4 Bf6 Rf4 Bfd8 Rf6 Be7 Qe4 Bed8 Rh6 Bf6 Qg6 Rd8+
n1Kb3N/B3p3/1P1Q1b1r/3nBQ1r/Rqr1b3/1k5b/2pRBN2/R1Rn1R2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 f4 c5 d4 a5 g4 h5 b6 e3 f5 c4 f6 c3 d6 h3 g5 a4 f7 h2 d7 h4 Ke6 e2 d5 e1R+ Be2 a3 b7 h3 g6 a2 g7 c2 d6 Ra6 Nd2 Rh4 Ne4 Rf1 Ng5 Qa5 Be3 Qc7 Qd3 Rff4 Qf5 Qa5 Ba7 Nf6 g8R Bh6 f8R Nd5 Nf7 Kb3 Nh8 Qb4 Rg4 Rc4 Rc1 a1B Rf4 Nc6 b8B Nb6 Re4 Be3 Bc7 Bb7 d8Q Bc8+ d7 Rh5 Be5 Na8 Qc7 Bc5 Qd6 Bb6 Rf4 Bd8 Rff1 Ra2 Rg8 Ra6 Rg4 Qb7 Re4 Nb4 Rd4 Nd5 Rh4 Ka4 b4 Kb3 b5 Qb6 Rhf4 Qa5 Rd4 Qb4 Rh4 Rac6 b6 Bc3 Nf3 Bd4 Ng5 Bc3 Rhg1 h1B Ne4 h2 Nf2 Be4 Ra1 h1N Rfc1 Bg2 Rgf1 Bh3 Rd4 Bb7 Rd2 Ng3 Ra4 Ne4 Rdd1 Bd4 Rca1 Nec3 Rdc1 Bc7 d8R Nd1 Kd7 Bb2 Qc5 Rch6 Qd6 Bc6+ Kc8 Bc3 Rg8 Bd8 Rg4 Bb2 Rd4 Bc3 Rd2 Bb2 Bf4 Bf6 Be5 Ndc7 Qfd7 Be4 Qf5 Nd5+
R1B5/1pQ1R3/rK1n1R2/2RbqQ1r/3bb3/1kp2NBQ/2r3nP/3nR1nN w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Ke3 e5 f4 g5 d4 c5 a4 c4 f6 b3 d6 Ke6 f7 Kd5 a5 c3 a6 b2 d7 e4 a7 g3 f5 g4 f6 g2 Qd3 g3 Nh3 g1R Nd2 b1B Ra5+ Bc5 f8Q g2 f7 Qf6 d8Q+ Bd7 Nf2 Ne7 Qc7 Bc6 Nf3 Rh5 Bd2 Qh8 Be1 Na6 Qfc8 Ba2 f8R Qe5 Qh3 Nb4 Rf6 Nc8 Be2 Nd6 Bd1 Rah8 a8R R8h6 Re8 Rf1 Re7 g1N Qb1 Kc4 Ba4 Bd5 Bd7 Nd3 Bc8 Bc6 Qc2 Bb6 Rc5+ Kb4 d5 Nb2 Qb1 Kb3 Qd3 Qf4+ Kd4 e3+ Qe4 Qg3 Qef5 e2 Qe6 Nd1 Qef5 Ne8 d6 Be4 d7 Nd6 d8R Qg5 Bd2 e1N Bf4 Ng2 Bg3 Qf4 Bd7 Re1 Ra8 Re2 Bc8 Rc2 Qh4 Nh3 Re1 Ng1 Nh1 Ba7 Qhh3 Qe3+ Ke5 Qd4+ Ke6 Qe5+ Kd7 Rg6 Qb8 Rgh6 Kc7 Rg6 Rc6 Bd4 Rc5 Kb2 Kb6 Bad5 Qc7 Kb3 Re8 Rgh6 Re7 Rh7 Ka7 R7h6 Rff7 Nc4 Rf8 Rb6 Rf6 Nd6 Re2 Rb5 Re1 Ra5+ Kb6 Ra6+
Q2bQ3/Kp4r1/r1BQ2BR/1rn1b2B/N1NpP2b/1BB5/R2nb3/2qnk3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 h4 d5 c4 g5 a4 g3 e6 Kg4 h5 f5 e7 g2 e8B Kg3 e4 Kf2 c6 f4 h6 f3 a5 g4 c7 b3 a6 b2 a7 g3 c5 Qg5 c6 Ne7 Kc5 d4+ Kb6 Bg4 c8B Rh7 c7 Nf5 Be6 Be7 c8B Ne3 Bg6 Rg7 h7 Na6 h8Q Nc5 Qc2+ Ke1 Na3 b1R+ Bb5 f2 Ra2 f1N Nc4 Be2 Qe8 Nd2 Rh6 Nd1 Bb2 Bf6 Bc6 Bd8+ Kb5 Qf4 Qb3 Qe3 Qb4 Qc3 Bg4 Qc1 Bce6 Rc8 a8Q Rcc7 Bcd7 Rc6 Bc3 Rb6+ Ka5 Rb2 Bc6 Rb1 B4h5 Rb2 Nh3 g1B Nf4 g2 Nd5 Bf2 Bef7 g1B Bg8 Nd3 Qd6 Bfh4 Be6 Nc5 Bef7 R6b3+ Ndb6 Bh2 Be6 Be5 Bg8 Bde7 Na4 Beg5 Bb5 Bgf6 Kb6 Bd8+ Ka7 Rb1 Bc6 Rb6 Ncb2 Rb5 Bb3 Rb6 Nc4 Rb2 Bc2 R2b5 Bb3 Ra6+
Qn1N1b1n/Qp3b2/2r5/q1R1QrKp/2r3b1/kbN4B/4Q1nP/NQ1BR3 w - - 0 1 legal: proof: e4 a5 c4 f5 f4 g5 b4 d5 cxd5 axb4 Bb2 Na6 Be5 Bd7 exf5 Nb8 f6 Be6 f5 Bc8 Bf4 gxf4 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 d4+ Kd6 a4 e5 a5 c5 a6 h5+ Kg5 b3 g4 b2 a7 e4 Qe2 c4 Nf3 c3 Nfd2 c2 Ra5 c1N Rc5 f3 Nb3 e3 Nc3 b1B Na1 f2 Bh3 Bd7 Re1 Ne7 f7 f1B f6 Bg7 f8Q Rh6 f7 Ba2 Qe8 Qa5 f8Q Nd3 Qf5 Nf4 Qb1 Ng2 Qh8 Ba4 Qe8 Ng6 Qe5+ Kd7 d6 B4b3 d5 Bf8 Qf3 Nh8 Qe2 Kd8 d7 Rc6 Qe7+ Kc7 d8N+ Kb6 d6 Na6 d7 Rac8 a8Q Nb8 Qe5 R8c7 Qf3 Be2 Qf2 Bd1 Qe2 Rc8 Kf5 R8c7 g5 Rc8 g6 R8c7 Qd2 Bg4+ Kg5 e2 g7 Rc8 g8B R8c7 Rg1 e1R Qde2 Rf1 Bc4 Rf4 Re1 Rc8 Bb5 Bf7 Bd3+ Bab3 Bc2 Rc4 Bd1 Rf6 Q5e4 Rcc6 Qa7+ Kc7 Qe8 Qb4 Qaa2 Kb6 Q8e7 Rc8 Q7e5 Rf1 Ne6 Qb5 Na4+ Ka5 Nc3+ Kb4 Qa6 Rf3 Qb6 Ka3 d8Q Rc6 Qa7+ Na6 Qdb8 Qa5 Qba8 Nb8 Nd8 Rf5+
1Q1R3q/2K5/rbB2nR1/1qp1Q1B1/4qN2/qn2k2N/RPr1pqR1/1N1b1R2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 Kf4 d4+ e3 g4 e5+ d6 a5 g5 h5 f3 a4 d5 a3 b6 e4 b7 a2 g6 h3 g7 h2 Bg2 h4 Bf1 h3 Be2 Nf6 g8R Nc6 b8Q Nd4 Bb5 Nb3+ Kc6 Qe8+ d7 Bc5 d6 Ba7 Qe1 Qe5 d8R Bg4 Kb7 c5 Kc6 Qe8+ Kc7 Rh4 Ba4 Qb5 d7 Rh8 Rg6 Rg8 Nd2 e2 Nb1+ e3 Bd2 Rh8 Rdg8 Rh5 d8N Rd5 Bc1 Rd2 R8g7 Rc2 Ne6+ Ke5 f4+ Ke4 Qc3 e1Q f5 Qf2 Nf4 Bd1 Rg2 e2 R7g6 Qc4 Qg3 Kd4 Bc6 Qb5 Nd5 Ke4 Bh6 Kd4 Bg5 Ke4 Nf4+ Kd4 Nf3+ Ke3 Rf1 h1Q Ng1+ Kd4 Bd7 h2 Ngh3 Ke4 Bc6+ Kd4 Rgg1 Qe4 Rg2 h1Q Qh2 Nh5 f6 Ke3 f7 Nf6 f8R Kd4 Ng1 Ke3 Qh8 Qh7+ Qg7 Qh8 Ngh3 Bb6+ Kd6 Ra6 Rg8 Ba7 Kc7 Nh5 Qe5 Nf6 Na3 Rc1 Rd8 Rc2 Rc1 a1Q Nb1 Rd2 Rc4 Rc2 Ra4 Qa3 Ra5 Qab4 Ra1 Qa3 Ra2 Bb6+
3R2bn/QBRRqB2/3b4/p7/3QR3/Qq1n1p1b/PNR1r3/kNK1b1br w - - 0 1 legal: proof: c4 e5 f4 b5 cxb5 g5 d4 gxf4 dxe5 Qe7 Kf2 Qg5 Ke1 Qd8 g4 h6 g5 Bb4+ Bd2 Bf8 g6 Bg7 Bb4 Bf8 Be7 Bg7 Bf6 Bf8 Bg5 hxg5 Kd2 Ke7 h4 Ke6 b4 Kd5 e4+ Kd4 b6 f5 h5 c5 b5 d5 h6 a5 b7 g4 g7 c4 b6 g3 h7 g2 e6 Ne7 g8B Bd7 e5 Ng6 e7 Be6 e8Q Nd7 b8Q Nc5 Rh2 Bd6 Nh3 g1B Bg2 c3+ Kc2+ Kc4 b7 d4 Qa7 Rc8 Qg4 d3+ Kd1 d2 b8R Be7 Nf2 c2+ Ke2 c1B Kd1 Bf7 Na3+ Kc3 Bb7 Kb2 e6 Qc7 Qc6 Re8 Qa4 Bd6 e7 Nd3 Rg2 f3 Qge4 f4 Ra8 Nc5 Nd3+ Kc3 Rb1 f2 Rb2 f1B Rg4 f3 Rc8 Bf4 Rg2 Qd6 Rc7 Qf6 Rd7 Bd6 Rb6 Qe5 Rc6 Bd5 Rcc7 Qg5 Nb4 Kb2 Nd3+ Ka1 Nb2 Nd3 Qed4 Qe3 Nb1 Bf7 Kc2 d1Q+ Kc3 Qe5 Qa3 Bce3 Rd2 Bef2 Re2 Qa4 Rc2 Qb3+ Kd2 Be1+ Kd1 Ra8 e8R Qe3 Re5 Re8 Rf5 Qg5 Rf4 Re2 Re4 Bc4 Bgd5 Qe7 Be6 Rg8 h8R Bg2 Rhh4 Rh8 Rhf4 Rh4 Rf8 Nh8 Rfd8 Rh1 Bed5 Bh3 Bg8 Nf4 Kc1 Bce6 Bh7 Bc4 Bg6 Bg8 Bf7 Nd3+
1Rq5/r2RQb1N/nb3Q1p/b2R2rk/1p2B2q/2bRn3/2K2bP1/BB3RN1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 f4 Kf7 a4 Kg6 d4 c5 Kd2 e5 d6 b5 a5 e3+ Kc2 e2 a6 e1B d7 h6 a7 e4 d5 c4 d6 e3 Qe2 c3 Rh5 Qc7 d8R Na6 d7 Bf2 Bb2 Bc5 Nd2 Bb6 Ne4 Ne7 Nf6 Nd5 Nh7 Rg8 Qe1 Qc4 Bd3+ Qe4 Rc1 e2 Ba1 Qf5 Qf1 e1B Qe2 Bd2 Rf1 Rg7 Qe7 b3+ Kb1 b2 Kc2 Bb7 Rb8 b4 d8R Ba5 Rd7 Bde3 Rh3 Beb6 Rg3 Qe4 f5+ Kh5 g6 Qh4 f6 Bc6 f7 Ne3+ Kb3 c2 f8Q c1B Bb1 Bb7 Qff6 Bd2 Rf3 Rg8 g7 Bc3 Rh3 Be4 Rbd8 Bg6 Rb8 Rc8 g8R Rc5 Rgd8 Rg5 Rd5 Bf7 Rd7 Nf5 Rd3 Ne3 Re8 Rc8 a8B Rc7 Rb8 Ra7 Bb7 Bg6 Rb5 Be8 Be4 Bg6 Rbd5 Bf7 Ba2 b1Q+ Bb2 Qc1 Ba1 Bce1 Bb1 Qc8 Kb2 Bc3+ Kb3 Nc4 Kc2 Ne3+
1n5q/1kbbb1B1/3n1qp1/2Q3p1/6P1/Rbb2RNB/1rR1Br1K/QN2R1R1 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 a4 exf4 axb5 h6 Qb3 Bf5 Qg3 Bc8 Qg5 hxg5 Kf2 Kd7 e4 f5 d4 c5 b4 Kc7 h4 a5 g4 g6 Kg2 f3+ Kh2 f4 h5 a4 b6+ Kb7 d6 c4 e5 f2 e6 f3 b5 a3 d7 a2 e7 c3 e8B c2 h6 Na6 d5 Qe7 d8Q Nb8 h7 Qe1 d6 Bg7 d7 Ne7 Ne2 Qc3 Bh3 f1B Bb2 c1B Ng3 f2 Rg1 Nec6 Qe7 Nd4 d8R+ Bd7 Rc8 Bf8 Qc5 Be7 Rc6 Rf8 h8Q Bd2 Rf6 Bg2 Rf3 f1Q Bf7 Be1 Bc4 Nf5 Be2 Nd6 Qhd4 Rf5 Qd1 Qh8 Bg7 Ba5 Ra3 Bgc6 Qe1 Kc8 b7+ Kc7 Qec1 Rf8 Qe1 Qf6 Qf1 Be6 Rf3 Bb3 b6+ Kd8 Qfc1 Bd7 Qb2 Bc3 Qc1 Ra4 Re1 Rb4 Qb2 Na6 b8R+ Nc8 b7 Bba4 Rff1 Qc6 Ra8 Kc7 b8R Rf7 Rb6 Nb8 Rd1 Rf5 Rg1 Rf1 Rd3 Rb5 Rba6 Kb7 Nd2 Qf6 Re1 Nd6 Rf3 Ba5 Qba3 a1B Nb1 B1c3 Qa1 Bc7 Ra5 Bd1 Ra2 Ba4 Rd2 Rb2 Rc2 Bb3 Ra3 Rf2+
2BNQ3/nR1N1r1K/1n3p1R/1r1QPkp1/1N3NRb/nn1n4/1Bq2qN1/7b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 c5 b4 a5 e4 g5 h4 g3+ Kf3 g2 Kg4 f6 Kf5 f3 Kg6 c4 e5 c3 b6 a4 b7 a3 h5 f2 h6 a2 b5 c2 d6 Ke6 d7 Ra7 d5+ Ke7 h7 Ra5 b6 Rc5 d6+ Ke6 Rh6 Nc6 b8R Na7 b7 Qc7 d8Q Rb5 d7 Bc5 Ne2 g1Q Bb2 c1N Na3 Nd3 Nc2 Ne7+ Kg7 Qh2 Nf4+ Kf5 Ng2 Nd5 Nb4 Rf8 h8N Nb6 Ng6 Rf7+ Kg8 Be3 N6f4 Qc2 Qe8 Qh4 Rc1 a1N d8N Nb3 Be2 f1N Bg4+ Ke4 Ra1 Qhf2 Ra4 Nfd2 Bh3 Nb1 Bd7 Rf8+ Kh7 Na3 Be6 Bd7 Qd2 Bc6 Bc8 Bd7 Qd1 Kf5 Qf3 Be6 Qd5 Bd2 Ra8 Bc3 b8N Be1 Nd7 Bf7 Rb8 Bh5 Rb7 Bf3 Na2 Be4 Nfe6 Bf3 Rg4 Be4 Nb4 Bf3 Ngf4 Bh1 Ng2 Rf7+ Kh8 Qfe2 Nef4 Bh4 Kg8 Qf2 Kh8 Rf8+ Kh7 Rf7+
bQK2B1k/1rN5/4p1qP/1B3Qn1/1B1n2QQ/3bq1NR/1rb4p/bR1b1Q2 w - - 0 1 illegal: No proof kernel
Q1N3q1/1q3qp1/3KnB2/2rBR2p/P2n1Qb1/3kr1RB/qq2N3/BR2bB2 w - - 0 1 illegal: No proof kernel
2r4N/b3p1R1/r2np1R1/NK2R2B/1B1k3r/Q1Rb1B1q/rn2P2R/1Q4qr w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 h4 gxh4 Qb3 Qd7 cxd5 Qd6 Qe3 Qd8 Qe6 fxe6 b4 Kd7 g4 Kd6 f4 c5 d4 h5 Kd2 a5 Kc3 h3 Kc4 h2 g5 h4 f5 a4 f6 a3 g6 a2 g7 h3 b6 Na6 f7 Qd7 b7 Rh6 b8R Nc7 b5 Rh4 b6 Qe8 b7 Rf4 Nd2 Rf5 Nb3 Nh6 g8B Rg5 Na5 Bd7 Nf3 Ra7 Nh4 Rh5 Rc8 Nf5 b8Q Bg7 f8R Qg6 Qb1 Na6 Bf7 Nb4 Bd2 Qg1 Ng6 Ra6 Bg2 Nd3 Bb4 Rh4 Nh8 Be8 Bh5 Bg6 Be4 Nb2+ Kb5 Ne3 Rg8 Nec4 Bef3 Bd3 Rc7 Bh6 Rg6 Bc1 Rc8 Be3 Rcg8 Bf2 R8g7 Be3 Qc2 Bf2 Rc1 a1R Qb1 Ra2 Rc3 Qg5 Rg1 h1Q Rg2 Bg1 Rf2 h2 Rg2 Qf5 R2g5 Qh3 Re5 Kd7 d6 Q1g2 d5 h1R Rb3 Bf2 Rc3 Qg1 Ba3 Kd8 d7 Kc7 Bb4 Kd6 Reg5 Bd4 Rg2 Ke5 d8R Be3 d6 Kd4 d7 Ke5 Rc2 Nb6+ Kc6 c4 Rh2 c3 Rf8 Bc5 Rf5+ Kd4 Rc1 c2 Re5 Qd1 Nc4 Qg1 d8Q+ Nd7+ Kb5 Ba7 Qa5 Nb6 Rd1 c1R Qa3 Rc3 Rc1 Bf5 Ne3 Rc8 Nc4 Bc2 Na5 N6c4 Be4 Bd3 Rc3 Qe1 Bg2 Qg1 Bgf3 Nd6#
2r5/pR1N1K2/1nBb1r2/1N3Qp1/1NNN3k/2Qn1n1b/qP2nn1q/2BR1Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 h4 Kf6 e4 c5 d4 g5 h5 g3+ Kf3 g2 b6 c4 h6 c3 e5+ Kf5 e6 c2 b7 f6 h7 Qc7 d6 Qd8 e7 Na6 b8N Qa5 e8N Nb4 d5 Qa2 d7 Nh6 d8N Bd6 Ne2 g1Q Nbc3 Rf8 h8Q Qh2 Nb5 Ng4 Ndc6 Nf2 Bg2 Nbd3 Nb4 Be6 Nd7 Rc8 Qh3+ Kg6 Qf1 f5 Qg3 Kh5 Ned4 Rf6 Rb1 Ng4 Qge1 Ngf2 Qc3 Kh4 Ra1 Nc5 Rb1 Na4 Ra1 Nb6 Rb1 Bf8 Ned6 Be7 Nc4 Bd6 Ke2 f3+ Ke3 Bg3 d6 f4+ Kd2 Bh3 Ra1 Nd1 Kd3 f2 Bc6 f3 Ke4 Bf4 Nde5 Bg3 d7 Bf4 d8Q Bg3 Qfd3 f1N Qf8 f2 Nd7 Bb8 Qf3 Bd6 Qf5 Ng3+ Kd3 Ne2 Ke4 Na4 Kd5 f1N Qf7 Nd2 Qf1 Rf3 Qf5 Nf2 Ke6 Nb6 Kf7 Rf4 Rg1 Rf3 Rg3 Rf4 Re3 Nf3 Re8 Ne4 Re7 Nf2 Be3 c1N Rb1 Nb3 Rd1 Nc5 Bc1 Ncd3 Nb8 Re4 Rb7 Re6 Nd7 Rf6+
3r3k/N1RQ1bb1/4RQb1/q1B2qBn/2Nn2Rp/3pKrBr/2b3BP/6B1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 gxf5 cxb4 a4 e5 axb5 exd4 Kd2 Kf7 c4 a5 f4 g5 e4 Kg7 c5 h5 e5 d5 f6+ Kh7 f5 d3 b6 b3 b7 a4 e6 g4 c6 h4 f7 b2 e7 g3 e8R a3 c7 a2 f6 d4 Nc3 b1B Nf3 g2 Nb5 g1R Ne5 Bg7 f8B Bg4 c8Q Qa5+ Qc3 Nc6 b8B Bh5 f7 Nf6 Re6 Rg3 Nc4 Rh3 Bc5 Rd8 f8B Kh8 Bg2 Bf7 Rg1 Nh5 Na7 Qb5 Bb6 Qf5 Bfc5 Bc2 Rb1 a1Q Bg3 Qa5 Rb2 Bb1 Qa4 Rf8 Rc2 Rad8 Qb5 Nb4 Qd7 Nc6 Ke1 d2+ Ke2 d3+ Ke3 d1B Qf6 Nd4 Be7 Qac5 Kd2 Bg4 Bc6 Qf4+ Ne3 Qe4 Be1 Qc4 Qg5 Bf5 Rg4 Bg8 Bg3 Qa2 Bca3 Qe5 Bg2 Nb5 Bad6 Qa4 Rc7 Bg6 Nc4 Bc2 Bg1 Rf3 Bdc5 B8f7 Qf4 Qaa1 Bg5 Nd4 Qf6 Qe4 Be5 Qf5 Bg3 Rf4 Ke3 Qa5 Rec6 Rf1 Re6 Rf3+
QqB5/2q3Nq/1kr2B2/3BBb1Q/3p1bB1/rb2pn2/N2R1R1P/q2K1nR1 w - - 0 1 illegal: No possible last move
r2Kn2Q/N1B2qbB/1R6/r7/1qPN3p/1B2p1R1/bnr1n3/2BkrNBQ w - - 0 1 illegal: No possible last move
k6q/2n1Q2N/nr2RB2/1RNN1K1B/1Npb3r/1pP1q3/2RN1b1r/2Q2qq1 w - - 0 1 legal: proof: g4 a5 b4 axb4 d4 e5 dxe5 f5 h3 fxg4 Kd2 g5 Qe1 g3 Nc3 b6 Kd1 g4 Kd2 g2 Qd1 g3 Nb1 Bb7 Ke1 Bc6 Kd2 Bf3 Ke1 Bg4 hxg4 Ra6 Nc3 Ra4 Nb1 Ra8 Kd2 h5 Kd3 d5 a4 Kd7 e4 Kc8 f4 Kb7 g5 c5 a5 b5 c3 h4 e6 d4 g6 h3 g7 h2 a6+ Ka7 e7 b3 e8R b2 f5 b4 f6 b3 f7 Ne7 g8N Rh7 e5 c4+ Ke4 d3 e6 d2 Be2 Ng6 e7 Qc7 Nh3 g1R Ra2 g2 Nf4 Re1 Nf6 g1B Nd3 Bh6 f8N Bhe3 N8d7 Nf8 Nb4 Ne6 Ra5 Qc6+ Kf5 Bd4 Nc5 Rh3 Bg4 Re4 Rb5 Bgf2 Qc2 d1Q Bg5 Rh7 Nd2 b1Q Rg1 Qe2 Rc1 h1Q Qb2 Qhd1 Rc2 Qg1 Qa3 Qbf1 Qc1 Qc7 Bf3 Rh2 Nh7 Qb6 Bh5 Qd8 Bf6 Qc8 Rf8 Reh4 e8Q Qe3 Qd7+ Nc7 Re8 Qd8 Qd6 Nd5 Re6 Qh8 Qf8 Nc6 Qd8 Rb8 Qe8 Rb6 Qf7+ Kb8 a7+ Kc8 a8N Nb8 Nc7 Na6 Qe7 Kb8 Rd6 Nf4 Ncd5 Ne6 Rc6 Nec7 Re6 Ka8
2n3qB/nn1R1q2/2b3N1/1k3r2/1Pr1rbQ1/QB2pR1R/p3B1BB/2K3Nn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 Kd7 g4 h5 c4 a5 b4 e5 g5 h3 f6 h4 g6 e4 c5 e3+ Kc2 d3+ Kb2 d2 f5 d4 b6 Kc6 f7 d3 f6 a4 g7 h2 b7 h3 Ra2 Rh5 Bg2+ Kb5 c6 Bd6 f8B Nd7 b8Q+ Bb7 c7 Rf5 c8B Nc5 f7 Ne7 g8B Bf4 Qg4 d1R Qa7 Bc6 Nd2 Nb7 Ndf3 d2 Nh4 a3+ Kb1 Qc7 Ng6 Qb8 Bd7 Nc8 Bd6 Qc7 Ra1 a2+ Kb2 Qd8 f8R Qf6+ Kc2 Qf7 Qa3 Ra5 Bb2 Re5 Bh7 Re4 Be6 Qg8 Bb3 Qf7 Ne2 Qg8 Bh8 Qf7 Re1 h1Q Ng1 h2 Rd8 Qg8 Rf1 Qf7 Rf3 Qg8 Nh3 Qf1 Rd7 h1N Ng1 Qfc4+ Kb2 Qcf7 Kc2 Rb1 Bc7 d1N Bb8 Rb2+ Kc1 Rd2 Bd6 Nc3 Bd1 Bg5 Bh2 Bf4 Rh3 Rdd4 Rb1 Ra6 Rb2 Ra5 Rf2 Ka6 Rf1 Nb5 Rff3 Nba7 Bb3 Kb6 Bd1 Rf5 Bb3 Qge8 Bg8 Kb5 Bd1 Qf6 Bd5 Qff7 B5b3 Qeg8 Be2+ Rc4+
K1RN4/1b1n1r1q/3n1k1n/1Q3r1n/1pQ3pb/4B1Q1/PNBqRN2/Nq4N1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 b5 Ke4 c5 h4 e5 f4 g5 d4 b3 f6 c4 d6 c3 Kd5 c2 f5 e4 h5 e3 h6 g3 h7 b4 d7 e2 Na3 e1Q Qd3 g4 Qb5 g2 Rh2 b2 Nc4 b1N Be3 c1Q Nb2 Bh6 Bd3 Qec3 Bc2 Qb6 d8N+ Kf8 f7 Ke7 f8N Kf6 Nd7+ Kg7 Nc5 Ra3 f6+ Kf8 f7 Ke7 f8N Kf6 Ncd3 Q3d2 Nfe6 Qa7 Nf2 Ra5 Nc5 Nd7 Kc6 Na3 d5 Ba6 d6 Qb1 Nb3 Bg5 Qc4 Rf5 Qb5 Nc5 d7 Nh6 Qc4 Rg8 h8Q+ Rg7 Qe8 Nb5 Qh5 Rh7 Qh4 Rg7 Qg3 Nd6 Qb5 Bh4 Qc4 Qf1 Rc1 Rf7 Na1 Qfd3 Ne6 Qb3 d8Q+ Qe7 Qb6 Nd7 Qbb5 Qbd3 Nf3 g1N Nd8 Ne2 Ng1 Nf4 Kc7 Nh5 Rg2 Nc5+ Kb8 Nd7+ Ka8 Qf1 Nfd1 Qfd3 Re2 Qb3 Nf2 Qbd3 Bd1 Qb1 Ba4 Rf8 Rc3 Qh7 Bc2 Rf7 Qe4 Qdc1 Rc8 Qd2 Qec4 Bb7+
3k4/2q2bBK/B2r3b/2bBQ1PR/1r1n2Bn/3N3q/1Q1pRp1R/qN3bB1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 f5 c4 h5 g4 a5 e4 d3 b4 d2 g6 a4 g7 a3 e5 d4 b6 d3 b5 a2 e6 h4 e7 h3 b7 h2 g5 Nc6 b8Q Qa5 c5 Nd8 c6 Qb6 c7 Nh6 g8B Be6 c8B Ra6 Qe2 d1Q Bb2 d2 Nh3 Qc7 b6 Bf7 b7 Ne6 Bg7 Rd6 Nf2 Qa4 Nd3 Nd4+ Kf2 f3 Kg3 f2 Kf4 Rh7 Qe5 Qa3 Bh3 f1B Bg4 Rh8 Ne1 Qh3 Nd3 Nc6 Qb2 Nd4 Ke5 f4 Ke4 Bb3 Bd5 f3 Kf4 f2 Ke5 Rd8+ Kf6 Nhf5 Kg6 Rh4 Bh8 Qf4 Qe5 Bh6 b8B Rd6+ Kh7 Qfg3 Bg7 Bc4 Rg1 h1Q Ba6 Kd7 e8R Bb3 Be4 Bf7 Rg2 Qg1 Re6 Kd8 Rh2 Qh1 Bd5 Qf4 Na3 Qg1 Re1 a1B Nb1 Qh1 Re2 Qfg3 Bh5 Re4 Bg4 Nh4 Qc2 Bc3 Qb2 Bb4 Rf6 Bc5 Rf3 Qf4 Rg3 Qf6 Rg1 Q1f3 Rgh1 Q3f4 Rg2 Nc6 Qa2 Qhg3 Qd4 Rde6 Bac4 Ng6 Rh5 Qh3 Ba6 Nh4 Qe3 Qa1 Qb2 Qd6 Qed4 Qe7 Bh2 Qc7 Bg1 Rd6 Qe5 Rb4 Rh2 Nd4
5bB1/QB1r3q/8/b3RnpN/1nr1n3/N1kbPBqR/Kp1b4/1B2BRQ1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 fxe5 dxc4 h4 Ke7 a4 Ke6 d4 Kd5 Kd2 g5 Kc2 f5 Kb2 c5 a6 b5 a5 b4 a7 b3 a6 f4 e6 g3 e7 f3 e8B g2 e3 f2 h5 Nc6 h6 Qc7 h7 Nf6 Ne2 g1Q Ra5 Be6 Bd2 Bf5 Bg6 Nb4 Ng3 Rd8 Na3 Bd3 Nh5 Rd7 Be1 Ne4 a8B+ Qb7 a7 c3+ Ka1 c2 Qc1 Rg8 h8R Qg3 Bg2 f1N Bf3 Rgg7 Bh7 Rge7 Bg8+ Re6 Qb1 c1B Rb5 Bd2 Qd1 Nh2 Rf1 Ng4 Rh7 Nh6 Ra5 Kd6 d5 c4 Rb5 Qc7 Bb7 c3 a8B c2 Qb1 Ke5 Rc5 c1B d6+ Nd5 Rh8 b2+ Ka2 Ba5 Rh7 Bcd2 Qc1 Rde7 d7 Rc6 d8Q Rd7 Qb8 Nf5 Qa7 Kd6 Rb5 Rc4 Rc5 Nb6 Re5 Nd5 Qa6+ Kc5 Qa7+ Kb4 Qd1 Kc3 Rh6 Ned6 Be4 Be2 Bb1 Bd3 Rh8 Ne4 Qg4 Qh4 Qg1 Qf2 Ng7 Qg3 Rh3 Qc6 Nh5 Qg6 Bc6 Qh7 Bab7 Nc7 Bcd5 Na6 Bdc6 Nf6 Bh1 Ne4 Bf3 Nb4#
1N1q1Qbq/3r3Q/BR5r/1QqkN1p1/Nn2Rn1P/p1B1b3/4r1N1/1r1K2N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Ke7 d4 Kd6 h4 f5 b4 g5 b6 a5 b7 c5 b5 g3 b6 g2 Ne2 Qd7 Bd2 g1Q Nbc3 c4 Qb1 f3 Ra4 Nc6 b8Q+ Qc7 b7 f4 Qa7 Rh6 b8N Be6 Qab7 Qc8 Qh7 Nf6 Rb4 a4 Rb6 f2+ Kd1 Ra7 Qb2 Rf7 e5+ Ke7 Qb3 Nh5 Qbb1 Rg7 d6+ Kf7 d7 Bc5 d5 Qh8 d8N+ Ke7 Kc2 f3 Nf7 a3 Na4 c3 Rh2 Qg2 Ng1 Nf4 Ba6 f1R Qb5 f2 Rh3 Ra1 Re3 f1R Re4 Qg4 Be1 Rf2+ Bd2 Rb1 d6+ Kf8 d7 Ke7 Nh3 Bc4 e6 Be3 Ne5 Kd6 e7 Bg8 e8Q Qe6 Qf8+ Qe7 Ng1 Re2 Nef3 Rf7 d8N Rg7 Ne1 Rf7 Qb2 Kd5 Ng2 Rg7 Nf7 Qd8 Ne5 Rd7 Kb3 c2 Bb4 c1Q Bd2 Qc5 Bc3 Bd2 Kc2 Rc7 Qb4 Rd7 Qb5 Bc1+ Kd1 Nb4 Rg6 Rf2 Re6 Re2 Rb6 Be3#
K3k1n1/r5Q1/B2bn3/BR1r1RpP/2r1Bq2/p2bb1NN/bBq5/1B3QR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 d5 c4 f5 e4 a5 b4 g5 h4 a4 b6 g3+ Kf3 f4 c5 a3 b7 g2 c6 d3 e6 d4 c7 d2 e5 d3 Ke4 f3 b5 f2 b6 Nc6 b8R Bd7 Kd5 Nh6 c8Q Ke7 b7 Qb6 h5 Qc7 Nh3 g1B Nc3 Na7 Bb2 Ba4 Ne4 Qb6 Qc3 Nf7 Ng3 Qb4 Be2 Bb5 Qf1 d1Q Rc1 Bh2 Rg1 d2 Rb1 Be8 Ba6 Nb5 Rc8 Nh6 b8B Qc2 Bc7 Bd7 Ba5 Nd4 Rc5 Ke8 e7 d1R Kd6 Rh7 Kc7 Ng8 Rd5 Bb5 Kb7 Ra7+ Kb8 Rc7 Ka8 Bc4 Rc5 Ne6 Rb5 Kd7 e8B+ Kd8 Qd4+ Bd6 Bg6 Ba2 Be4 Ke8 Qa7 Rc5 Qg7 Rdd5 Re1 Qba4 Re3 Rc4 Rf3 Bc5 Rf6 Be3 Rf5 Nd8 e6 Qb4 e7 Ne6 Qe1 f1B Qc1 Bd3 Qf1 Qd6 Qe5 Kd7 e8B+ Ke7 Qd4 Qf4 Bg6 Rf7 Qg7 Ke8 Nh1 Qff2 Bh7 Bd6 Ng3 Qf4 Rf6 Qb1 Bf3 Be2 Bg2 Qd1 Bb1 Bd3 Be4 Qc2 Rf5 Ra7+
1b1Qb3/2N1Nn1B/1b2Q1b1/Qq3p1r/pRq2PQq/r3B2R/6n1/K3kNQ1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 c4 Kd7 g4 Ke6 d4 h5 Kd2 a5 Kc3 e3 Kb2 e2 f4 e1Q c6 h3 g5 Kf5 c5 Ke4 b6 e5 g6 h2 c7 h4 b7 h3 c6 Nd7 b8Q Ne7 g7 Qh4 g8Q Nf5 d5 Rh5 d6 Qdg5 Qa7 Ne3 Be2 Ng2 Qa6 f6 Nd2+ Ke3 Qb7 Kf2 Qa6 e4 Bg4 e3 Ngf3 e2 Ra4 e1B Bf5 Ne5 d7 Nf7 d8Q Bd6 Nd4 Bd7 c8Q Be8 Ne6 Bb8 Bh7 Qb5+ Ka1 f5 c7 Qc4 Rg1 h1B Nf1 h2 Qdg4 Bd2 Qa7+ Be3 Rb4 Bb6 Be3+ Ke1 Qcd7 Qb5 c8N Ng5 Qd4 Bg6 Rb2 Qf2 Ne7 Qfe2 Qa6 Nh4 Bc1 Bc6 Rg3 h1Q Rb4 Qec4 Nc7 Bce8 Qg1 Ng2 Be3 Qh4 Qe6 Nf7 Rh3 Ra7 Ncd5 Rd7 Qa7 a4 Nc7 Rd3 Qa5 Ra3+
3B3R/k2K4/2QR4/3p2RR/r3qNn1/1bbnP2B/2bn1pN1/1NrQb1Rq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 Kf3 f5 b4 a5 h4 d5 c4 Kd7 b6 Kc6 c5 Kb7 h6 a4 h5 d3 h7 d2 b5 a3 h6 a2 Nh3 Nd7 c6+ Kb8 b7 Bb4 c7+ Ka7 b8R Qe7 e3 Nc5 Rb6 Nf6 Rd6 Ng4 Bb2 Nd3 Bf6 Bd7 Rg1 Rhc8 h8N Qe8 h7 Qe4+ Ke2 Ba5 Ng6 Be8 Nh4 Bg6 h8R Bh7 Bg2 f3+ Kf1 f2 Ke2 f1N Nf4 Bg6 Bh3 Bh7 Nhg2 Bb4 Ne6 f4 Bd8 Bg6 Rh5 Bc3 Na3 Bh7 Rc1 a1B Nb1 Bb4 Rcc6 Bac3 b6+ Ka6 b7+ Ka7 b8R Bg6 Qb3 f3+ Kd1 f2 Kc2 Bf5 Nef4 Bg6 Qa4+ Ba5 Kb3 d1B+ Ka3 Nd2 Qb3 Bab4+ Ka4 Bc2 Kb5 Ba5 Qc4 Bb3 Qa4 Ba1 Qc4 Nh6 Rf1 g4 Na3 g3 Rf6 Nc5 Nb1 Qf5 Qc2 Nde4 Ne1 g2 Rcd6 g1Q Kc6 Ka6 Qd1 Ng4 Neg2 Qh1 Rb7 Be1 Rf8 Nd2 Rfh8 Qe5 Rg1 Bd3 Rg6 Qe4 Rgg5 Bg7 Kd6 Bd4 Ra7+ Kb6 Ra2 Ra5 Ra4 Ka7 Rb4 Ra4 Rb6 Bdc2 Kc6 Nd3 Kd7 Bg7 Qe2 Bd1 Rd6 Rb8 c8Q Rbb4 Rdg6 Rc4 Rd6 Rc1 Qc6 Bdc2 Qd1 Bc3
B1Rn1b1q/k1Br4/8/1np1N2b/2rr1Rp1/BrN3RQ/R3KPn1/R2Q1q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 Kd7 b4 a5 h4 g5 d6 c5 b6 Kc6 d5+ Kb7 h5 e5 b5 e3 h6 g3 d7 g2 d6 e2 h7 a4 Na3 e4 Qb3 Ne7 Qh3 Na6 Nb1 a3 Nf3 g1Q Ne5 a2 Ba3 Rb8 Rh2 Nc7 Nc3 Nc6 Rg2 g4 Kd2 e1N Ke2 e3 Rg3 Qh1 Bg2 Qf1+ Kd1 Ka8 b7+ Ka7 Bf3 Qf6 d8Q Be6 d7 e2+ Kd2 Rg8 h8R Bf7 Bh1 Bh5 b6+ Ka6 Rh6 Qh8 Rf6 Nb5 Rf4 Ng2 Kd3 e1R+ Kd2 Rc8 b8R Rc7 b7 Ka7 Rc8 Rb1 b8R Rb3 Rb6 Na5 Rd6 Nb7 Rdd4 Rg6 Rde4 Ra6 Re2 Ra4 Kd3 Qg1 Rc2 Rd4+ Ke2 Rc4 Re1 a1R Ra2 Rd1 Rf1 Rdd4 Rfa1 Nh4 Bd5 Ng2 Bf3 Na5 Ba8 Rb7 Qe7 Qc1 d8B Rbd7 Qd6 Nc6 Bc7 Nd8 Qd5 Qg1 Qf3 Qh1 Qd3 Qg1 Qd1 Qf1+
RRn3Nn/2Rr2qQ/N2k2r1/R1p5/bB3p2/1QQBb1q1/5RP1/r2r1qK1 w - - 0 1 illegal: No possible last move, all moves rejected
7Q/KR1RbQBQ/4b3/1P3bq1/NQQNk1q1/p1B3n1/2pb4/q1nB2rr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 e5+ Kd7 h5 a5 d6 Ke6 d7 Kd5 b6 a4 b7 a3 h6 f3 Ke3 c4 e6 f2 h7 c3 e7 c2 e8Q g3 Be2 f1B Bb2 g4 Qd3 g2 Bc3 g3 Bd1 Nc6 b8Q Be2 Nf3 Na5 b5 Ra7 Qf4 Qg5 d8B Nh6 Qf7+ Be6 Bf6 Be7 Bg7 Nb3 Rh4 Rg8 h8Q Nc1 Qh7 Bf1 Rh2 g1B+ Rf2 g2 Qe4+ Kc4 d5+ Kc5 d6 Bd3 Qb4+ Kd5 d7 Qg4 Qc7 f4+ Kd2 Bf5 Nd4 f3 Ke3 Bh2 d8Q+ Bhd6 Rf1 f2 Rh1 g1Q Qdc8 Bf6 Qcc4+ Ke5 Rh3 Be7 Rh2 f1Q+ Rf2 Rd8 Qb8+ Rd6 Qbh8 Qg1g2 Re2 Rd8 Rd2 Rg8 Be2 Ra6 Rd1 Bg6 Bf8 Nb3 Nc6+ Kf5 Bb2 Q4g3+ Bf3 Bd5 Nc3 Qfh1 Na4 Qgh4 Qfg7 Bc3 Qf7+ Qf6 Rd4 Qh5 Rad1 Nc1 R4d3 Be1 Be5 Qd2+ Kd4 Qc3+ Ke3 Qa1 Bc3 Rg7 R1d2 Qh4 Bd1 Rb6 Qh7g8 Bh7 Rd4 Rg1 Bg7 Qg4 R2d3 Bg6 Qgh7 Ra6 Ne5 Rc6 Nf3 Rc5 Rd2 Be6 Rd6 Rd5 Rb6 Rc5 Rd7 Bd2+ Kf2 Rd5 Rbb7 Rd3 Nh2 Rh3 Nf3 Be1+ Ke3 Rhh1 Qfe8 Qfh4 Qeg8 Qhh5 Qe8 Qgg5+ Kd4 Bd2 Qeg8 Kf4 Qe8 Qhg4 Qeg8 Bd8 Qf7+ Nf5+ Kc5+ Ke3 Kc6 Be7 Kb6 Ng3 Nd4 Ke4 Ka7 Bgf5
2N5/nqrNn1n1/1bqR4/1p1B1BPQ/k1br2rn/6RR/2pB1BB1/2Q4K w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 e4 h5 d4 c5 g4 f5 Kg2 h4 a4 h3+ Kh2 c4 e5 f3 d6 Kc6 e6 f2 e7 b3 e8Q+ Qd7 a5 Kb5 a6 f4 d5 b2 a7 f3 g6 Rh7 g5 Qc6 d7 Bc5 d8R Bb6 g7 Ne7 g8B Be6 Bg2 f1R d6 c3 d7 f2 Nd2 b1N Ngf3 c2 Ra3 Rg1 Ne4 Nd2 Ne5 Bc4 Rg3 Ka4 Qeh5 f1Q Be6 Qf3 Nd6 Qfd5 Re3 Rg7 Bf5 Nf3+ Kg3 h2 Bd2 Rh7 Qc1 Nh4 Nc8 Rd1 Rg1 h1N+ Kh2 Ng3 Rd3 Qf3 Rd6 Qfe4 Rh8 Qed5 d8B Qf3 Bfh3 Ngf5 Kh1 Ng7 Nd7 Qb3 Bf5 Qb4 Bf4 Rd4 Bd2 Rg4 Rf8 Rh8 Rd5 Bf2 Re8 Neg6 Nf6 Qa6 Bf3 Nc6 Re3 Nge7 Bb6 Rd8 Bd4 Rb8 a8B Na7 Rg2 Rd6 Nd7 b6 B3e4 Rb7 Rh3 Rc7 Rgg3 Qc5 Bc6+ b5 Bg2 Qb7 B4e3 Bg1 Rd3 Qcb6 Bcf3 Q6c6 Bc5 Re6 Rd6 Ree4 Bce3 Ref4 Bd5 Re4 Be1 Ref4 B3d2 Bb6 Bf2 Rd4
1Nrn2b1/RB4k1/qqNBB1rn/P1pnb1Rn/2r5/p6N/2QN3N/4Q2K w - - 0 1 illegal: No proof kernel
4r1bN/b1r1B2q/Q5n1/p2Pq3/1RB1nb2/BR2p1Bk/1K1Qb3/1B3rQN w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc3+ e3 b4 e5 f4+ Kh6 d6 a5 d7 c5 f5 Kg5 b6 h5 b7 c4 b5 e4 b6 h3 f6 Kh4 f7 e2 g5 e1B+ Nd2 e3 g6 h2 g7 Qe7 d8Q Nc6 b8B Qg5 b7 Nce7 Kb2 Nf6 g8B Qe5 Bh7 Bg3 Bb1 Bf4 Ne2 Be6 Ne4 Ng6 N4g3 Ra7 Ra4 Bc5 f8B Bg8 Rb4 Bb6 Qd5 Ne4 Be7+ Kg4 Qc6 h4 Qd2 h3 Qd6 Bc5 Qa6 Bb6 Rg1 h1B Bc7 h2 b8Q Bg2 Nh1 Kh3 Qf8 Rb7 Qg7 Ba7 Bcd6 Rc7 Rb3 Qg5 d5 c3+ Ka1 c2 Bca3 c1R Kb2 Kh4 Rb4 Bf3 Be5 Bg3 Nf4 Rd1 Bb5 Rf1 Bc4 Be2 Rb3 Be6 Rg2 Re8 Rf2 Bg8 Rf3 Nf8 Ng6+ Kh3 Nh8 Ng6 Rf6 Qf5 Rfb6 Bf4 R6b4 Qe6 Qf6 Qf5 Qg5 Qf6 Qg1 Qf5 Ng3 h1Q B5d6 Qh2 Nh1 Qh5 Be5 Qh7 B5d6 Bg5 Bg3 Bf4 Be1 Qg3 Bf2 Qg5 Bg3 Qe5+
1NK3R1/n5Rr/1R1r2RP/1q2B2B/pN1p1QQn/k3b1b1/bN1n2R1/2q4b w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 Kd3 d5 h4 Kd7 c4 Kd6 b4 e5 f4 g5 h5 g3 c5+ Kd7 b6 Kc6 b5+ Kd7 b7 a4 c6+ Kd6 c7 Kc5 b6 Kb4 h6 g2 f6 g4 f7 g3 f5 Qf6 Rh2 Bc5 f8Q Bd7 c8R Bd6 Nf3 g1N Nc3 g2 Bb2 Ne7 Ne1 Be6 Rc7 Nbc6 b8N Nf3 b7 g1B Be2 Qg5 f6 Nf5 f7 N5h4 Rg2 Nd2 Bh5 Rh7 Qg4 Be3 Nd1 Ra6 Nc2+ Kb3 Nb4 e4+ Ke2 Bdf4 Qd6 Be5 f8R Bg3 Rg7 Qf5 Rb1 Bg8 Bc3+ Ka3 Nb2 Rb6 Rbg1 d3+ Kd1 Be6 Be5 d4 Rfg8 Ba2 Qf6 Qd7 Qff4 Qd5 Rg6 Qb5 R8g7 Nc4 Rg8 d2 Ke2 Ra6 Nd7 Rb6 b8R Ra6 Rb6 d1B+ Kf1 Bc2 Ke2 Bcb1 Nb8 Nd2+ Kd1 Bd5 Kc1 Bba2 Kc2 Bef2 R6g7 e3 Rg6 e2 R6g7 Nc4 Kd3 e1Q Rg6 Qc1 R8g7 Be6 Ke4 Be3 Rg8 Bc8 R8g7 Bb7 Rg8 Nf3 Kf5 Nh4+ Ke6 Ba8 R8g7 Nd2+ Kd7 Ra7+ Kc8 Rd7 Re2 Rd6 Rg8 Ne4 Rc2 Nd2 R6g7 Na5 Rg6 Bh1 Rc7 Nc6 Rg2 Nhf3 Re7 Nh4 Reg7 Na7+
1r1qKn1k/1bQ4r/2N2qpb/p2QR2n/b1PB2N1/2QQ4/4rQ2/1BR1R1r1 w - - 0 1 illegal: No possible last move, all moves rejected
nQ3Nqk/1B2B2q/qbB2P1R/2Nr4/4p1r1/1B3R1Q/Knr4p/3qRB1b w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 c4 Kg7 Kc2 a5 Kb3 h5 g4 e5 f4 d5 f5 h4 f6+ Kh7 b6 d3 c5 d2 b7 d4 c6 a4+ Ka2 e3 b4 h3 b5 a3 b6 d3 c7 e2 Qb3 e1Q Nf3 d1Q Nc3 d2 Na4 Ne7 Nd4 Qh4 Nc5 Nf5 Nde6 Na6 b8Q Nd6 b7 Rg8 g6+ Kh8 g5 Qh7 Rh2 Be7 Nf8 Nc4 Bb2 Bd7 c8B Nc7 Rf2 h2 Qh3 e4 Rf3 Bg4 Bc3 Bh5 Bb4 Nb2 Bd7 Ra5 Bc6 Na8 Rb1 Qe2 Re1 d1Q Qd6 Qd4 b8R Qdd1 Rb5 Qc8 Qb8 Bd8 Rb7 Qa6 Rd7 Rg7 Rd5 Rc7 g7+ Kg8 Bb7 Rc6 Rdf5 Bb6 R5f4 Rc7 Rh4 Bg4 Rh6 Bh5 Nce6 Rc2 Be7 Rd5 Nc5 Qd8 Rfe3 Bf3 Rc3 Bh1 Rf3 Kf7 g8B+ Ke8 Kb3 a2 g6 a1R g7 Qc8 Be6 Rb1 Bf5 Kf7 Bd7 Rbc1 Ba4 Rg2+ Ka2 Rcc2 Ra3 Qd8 Bb3 Rg4 g8B+ Ke8 Be6 Qc8 Bf5 Kf7 Bd7 Kg8 Bdc6 Qd8 Bba4 Kh8 Rf3 Qc4+ Bb3 Qe8 Nfd7 Qg8 Nf8 Qa6+
RK1B1q2/1N1q1q1Q/5P2/qb2r1pr/4pk2/1Rb1n1NB/R3QNR1/n2Rr3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 Kg5 b4 a5 f4+ Kh4 d4 c4 b6 g6 b5 e3 f5 Kg5 h4+ Kh6 h5 Kg5 b7 g3 b6 c3 d6 g2 h6 a4 d7 a3 d5 a2 d6 c2 h7 Nf6 Ne2 g1Q Ng3 Na6 b8R Bg7 b7 Qf8 d8N Nc5 d7 Ra5 Rh2 Qf2 Nd2 e2 Ra8 e1R+ Qe2 Ng4+ Kd5 e5 Kc6 Rb5 Kc7 Nb3 b8R Ba6 Bh3 Qf4 Bb2 Ne3 Rg2 c1Q+ Bc3 Qca3 Ba5 Qae7 Rb7 Qc4+ Kb8 Kf4 Nde4 g5 Nf2 e4 Rd1 Ba1 f6 Bc3 Rd2 a1Q Rb2 Qaa4 Ra2 Re5 Rb6 Nd4 Rb3 Ndc2 Bc7 Qcf7 Bb6 Rg8 h8Q Na1 Ba5 Rg6 Qh7 Rh6 Bc7 Qa5 Bb6 Q8g7 Nb7 Bb5 d8R Rh5 Rd1 Qgf8+ Bd8 Qd7
1n3NQ1/3Q1b1N/2BKP1Rr/4bkp1/1Rr1r1n1/B1q2N1n/q1rp4/2Q2QQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 g5 Kd5 a5 c4 d6 h4 a4 b4 a3 e4 f3 h6 f2 e5+ Kg6 h5+ Kf5 b6 f6 e6 d3 c5 a2 b7 d2 h7 Bh6 b5 Na6 b8Q Bf8 b6 Bg7 h6 Bd7 b7 Qc7 c6 Be8 Bg2 f1R Qc8 Re1 b8N Re4 Nd7 Nb8 Ba3 Raa4 Nf8 Bf7 Qd7 Rac4 Nf3 Qc8 Qg1 d1N c7 Nf2 Qf1 Nh3 Nbd2 Rc2 Rc1 a1Q Rb1 Qa6 c8Q Qc3 Rb4 Rc4 Bb2 Qa2 Ba3 Kf4 Qa6 f5 Qc1 Be5 Ne4+ Kg4 Qaa7 f4 Nf6+ Kf5 Qc5 Qb1 Q5g1 Qa2 Nd2 f3 Qcf1 f2 Nf3 Na6 Qc1 f1R Rh2 Nc5 Kc6 d5 Bh1 Bd4 Kd6 Re1 Rf2 Re4 Qgf1 Ne7 Rh2 Nc6 Qg1 Rg8 h8Q Nb8 h7 Rg6 Qg8 Rh6 h8Q Nd3 N6h7 Ne5 Rf2 Ng4 Qgf1 Bb6 Qd4 Ba7 Qde3 d4 Rh2 d3 Qeg1 d2 Bg2 Nhf2 Rh3 Bd4 Rh1 Rg6 Rh6 Rf6 Rg6 Nh3 Rg7 Rh6 Rg6 Bh8 Nh2+ Rf4 Bc6 Bf6 Nf3 Rfe4 Qc8 Bd4 Qd7 Be5+
3q3R/3BQ1R1/k1nprq1n/b3B1R1/P4bN1/qK1b2Bp/1B1r1BN1/2q2Q2 w - - 0 1 illegal: No proof kernel
6qR/2b1Q2R/1PR1b1r1/1n3NR1/3p1p1R/2bBQ1nq/NBK1N1kn/3br3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 h4 a5 c4 g5 c5 d5 b6 f5 b7 a4 b5 f3 b6 Kf4 h6 Kg3 e5 f2 e6 d3 e7 a3 e8Q f4 c6 a2 c7 d4 h5 g4 h7 Nh6 Nc3 Nc6 b8R Na7 Qea4 Be6 c8N Rg8 h8R Bd6 Qb4 Nf5 h6 Nb5 h7 Qh4 Qe1 Rg6 Bb2 Bc7 Nd6 Qh3 Rbg8 Re8 Rc1 a1B Na2 Re7 Kd1 d2 Bd3 Kg2 Rc6 f1N Kc2 g3 Qe3 Nh2 Ne2 Re8 Rg7 Re7 Rhg8 Re8 h8R Re7 Ba3 Bc3 Bb2 Rg4 Qe4+ Nf3 Ne8 Bf7 Rhh6 Qh2 Rcg6 Kf2 Nec1 g2 Rgh8 g1Q Rc6 Qgg2 Rg1 Qhh3 Nd6 Nh2 Rh4 Re5 Rgh7 Be6 Qc5 Rg7 Qb4 Qg5 Rgg4 Ng3 Nf5 Kg1 Qf3 Re1 Qe3+ Kg2 Ne2 Qd8 Rg6 Qg8 Rg5 Rg6 Qe7 d1B+
1R1N1RR1/BR1b2R1/1pq2KB1/bqnPr1p1/BNn5/7Q/Q3r3/r2qk2r w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 g6 h4 g3 a4 e6 a5 c4 h5 g2 d6 c3 h6 c2 a6 b3 h7 b2 d7 Qb6 d8R Bd7 a7 Ba4 d5 Na6 Nh3 g1Q Rb8 Bd7 Be3 c1R Qd2 Bb4 Na3 b1Q Bd3 Qa5 Nc2 Qc5 Ng5 Qd1 Nf7 Qb3 Rb1 Ne7 Nd8 Nc8 Rg1 Ba5 Nb4 Nb6 Qa2 Re8 h8R Qb2 Rg8 e5+ Ke4 Qbc3 f4 Qb5 Rg3 Nc4 Bc2 Ke7 f6+ Kd6 f7 Re7 f8Q g5 Qf5 Re6 Qh3 Nc5+ Kf5 e4 Rf3 Re7+ Kg6 Re5 Rb3 Rb1 f5 Rb2 Bg1 e3 f6 e2 f7 e1R f8R Rb1 R3f7 R1e2 Kf6 Ra1 Bg6 Qcc2 Rc3 b6 Rfg7 Qca4 Bh2 Qc6 Re3 Qab5 Rb7 Rb8 a8B Rc8 Ne6 Re8 Nd8 Re1 Re4 Rh1 Rf4 Re2 Rh4+ R8e5 Rhh8 Ne6 Bf4 Kc5 Bg3 Kd4 Bf4 R5e3 Bb8 Kc3 Ba7 Nc5+ Ne6 Qba4 Rfb8 Qcb5 Nd8 Qac2 Rf8 Kd2 Rhg8 Re4 Rc7 Ke1 Bc6 Re5 Rcb7 Qa6 Ba4 Qb5 Na6 Nd6 Nb4 Qcc4 Qe6 Qc6 Qf5 Q4b5 Qh3 Nc4+
3NBR1R/rb2N1n1/bp1q3N/BPpQ1Q2/2rn1Nq1/2bN2q1/5K1Q/bk6 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 d4 Kd7 a4 Kd6 f4 e5 g4 h5 a5 c5 g5 b6 g6 b3 a6 h3 a7 h2 f6 e4 g7 h4 f5 b2 f7 h3 f6 e3 Nd2 b1B Ndf3 e2 Ne5 Bh7 Bd2 Qe7 Bg2 Be4 Kf2 Bcf5 Ba5 Bc8 Nd3 Ba6 Rf1 Nh6 g8N Bg7 f8Q Nf5 f7 Rh4 Nh6 Nc6 Qh8 Bf6 f8Q Ng7 Qf7 Be5 Qf5 e1B+ Ke3 Bf6 Ne2 Bc3 Kf2 Be5 Bf3 Qg5 Bh5 Qg4 Be8 Bf3 Rhg1 h1Q Nef4 Bg2 Qhh7 Qh2 Rh1 Bf6 Ng6 Qe5 Ne7 h2 Qh8 Rc8 a8N Rc7 Qhh7 Ra7 Nc7 Bf3 Ne6 Ba1 Nef4 Qe6 Rhg1 h1Q Qh8 Qhh3 Rh1 Be4 Nh5 Qgg2+ Ke1 Qgg4 Nhg8 Qgf3 Qg4 Qh2 Qg6 Kc7 d6+ Kb7 d7 Kc7 d5 Kd6 Qhh6 Bfc3+ Qd2 Qfg2 Rf8 Rf4 Qg5 Qeg4 Qf5 Bf3 d8N Rb4 Ne6 Qhf4 Rh3 Nd4 Rh4 Qh6 Nhf4 Q2h3 Rh5 Qf6 Rh8 Be4 Nh6 Rc4 Ne5 Bcb2 Qh2 Bc3+ Kf2 Bf3 Ned3 Bh1 Nc1 Be4 Qg6 Ke5 d6 Beb7 Qd3 Qfg6 d7 Qf6 d8Q Qfg6 Qdg3 Ke4 Qc8 Qf6 Nd8 Qd6 Qgg2+ Qhf3+ Kg1 Ke3 Ncd3 Qfh3 Ne2 Kd2 Nef4+ Kd1 Kf2 Kc2 Qd5 Kb1 Qcf5 Qhg3+
1n2r1K1/2Q3n1/Rp2p2r/1r1R4/1N2bB1q/P1qqRQ2/2NQ3b/1B1RRrk1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 h5 d4 c5 g4 h3 g5+ Kg7 Ke5 h4 f4 h2 d6 e6 d5 h3 d7 b6 g6 Kh6 d6 b3 g7 b2 f6 c4 a3 c3 f5+ Kh7 f7 c2 f6 Kg6 Ne2 Kh5 Nbc3 Kh4 Nd5 b1R Nd4 Kg3 Bf4+ Kf2 Bd3 c1Q Re1 h1R Nb4 h2 Ndc2 Rf1 Qd2+ Kg1 Bh7 Qe8 d8Q h1Q d7 Rb2 Qc7 Nh6 g8R+ Bg7 d8R Ra7 f8Q Qg6 Rd5 Qh4 Kd6 Ba6 Ke7 Qd3 Rd1 Nf5+ Kf7 Rb3 Re1 Qb2 Rad1 Qbc3 Bg6 Rh7 Rh8 Rb7 Kg8 Rh6 f7 Be5 Rh7 Ng7 Bf5 Nd7 Qa8 Ra7 f8R Bb7 Rd8 Bd6 Ra5 Be4 Ra6 Nb8 Rd7 Be5 Rd5 Rf6 Rh5 Rh6 Bg6 Bd6 Rhe5 Rb2 Qc4 Re7 Qc7 Bf5 R5e3 Be4 Bg5 Bh2 Bf4 Nc6 Qf8 Nb8 Qf5 Rb3 Qh3 Rb1 Qf3 Rb2 Na2 Rb5 Nab4 Qg5 Bh7 Qh4 Qc5 Qdc4 Na1 Bc2 Bd3 Qe4 Qc7 Qg6 Bc4 Qe4 Ba2 Qed4 Bb1 Be4 Nac2 Qdc4 Qb7 Q4d3 Qc7 Re8+
6R1/3rr2P/n1K1Q3/1BR1qQBk/1Rp1NB1n/b1nN3B/2bpqn1B/4b3 w - - 0 1 illegal: No proof kernel
K5NR/3N3p/qqrrrBR1/knbb2bN/5p1b/P1R3n1/R1B2R1Q/3Q4 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 Kd7 Ke3 Kc6 Ke4 Kb6 g4 c5 d4 f6 a3 b3 e6 b2 e7 c3 e8R c2 g6 c4 g5 c3 g7 Qd7 d5 Bd6 g6 Nc6 Bg5 c1B Nf3 c2 Nbd2 b1Q Ra2 Nd4 Rh2 Nf5 Ne5 Qd8 Rf2 Be6 Nd7+ Ka5 e3 b5 Bd3 b4 Nf1 b3 Ng3 b2 Nh5 Qe7 Rc8 Ra6 Rc3 Bc5 d6 Rc6 Qh1 Qf8 Qh2 Nge7 g8R Nc8 g7 Na7 Bh4 Bd2 Bg5 c1B Bc2 Qa8 Bh4 Bc4 Bg5 Bd3+ Kd5 Be1 e4 Ng3 e5 f5 Bf6 Bg5 e6 f4 e7 Qc8 e8Q Qa6 Qe2 Bf5 Qd1 Be4+ Ke6 Bh1 Ke7 Bd5 Kd8 Rb6 Kc7 Rc6+ Kb8 Be4 Rf8 Bd5 Rd8 Re8 g8N Re2 Ka8 Re6 Ba4 Qg6 Bc2 b1R Re8 Rb7 Re7 Qb6 Rg7 Qd3 Rg6 Qda6 Nf8 Rbe7 d7 Red6 d8R Ree6 Nd7 Nh1 Rff3 Beh4 Rf2 Ng3 Nh6 Qc7 Rh8 Qcb6 Ng8 Nb5#
1R1b1Q1b/1B4P1/2q3kB/1n3pr1/1Rq1NKp1/1rR1N2b/4n1QN/1brR2R1 w - - 0 1 illegal: No proof kernel
1q6/QBkqb1p1/K1b4B/p1R2rNR/1nNnP3/1Q3BqR/4R2n/3Rr2n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 Kd7 c4 a5 e4 f5 h4 f3 b4 f2 h6 f4 b6 f3 h7 Ba6 b7 Ra7 h5 Qc7 b5 Kd8 c5 Qd6 h6 Qf4 c6 Be7 Na3 Qg3 Rh2 Kc7 Be2 f1N Nc4 f2+ Nf3 Nf6 Qb3 Ra8 Rh3 Nh2 Bd1 Rd8 h8R f1N h7 Ra7 Bh6 Rf8 Kc2 d3+ Kc3 d2 Rg8 Rd8 h8R d4+ Kd3 Rd5 Be2 Ra8 Rd1 Rf5 Rd8 Ra7 Rd5 Ra8 Rc5 Nd5 Nb2 Ra7 Kc4 d3 Ng5 Nb4 Bf3 Ra8 Re1 d1Q Re2 d2 Rd8 Nd7 b8R Bb7 Rh8 Ra6 Rbd8 Nf8 Rd6 Qb1 b6+ Kc8 Kb5 d1Q Rh7 Ne6 c7 Qd5 Nc4 Nd4+ Ka4 Ba8 Rh5 Kb7 c8B+ Kb8 b7 Rc6 Rh8 Kc7 Rh7 Qe6 Rh3 Qd7 b8Q+ Kd8 Qa7 Rc7+ Rb5 Bc6 Bb7 Rc8 Rh8+ Kc7 Rd5 Qg4 Rc5 Ng3 Re8 Nh1 Rd8 Qe8 Rdd5 Qd7 Rd6 Qg3 Rdd5 Ne6 Rd1 Nd4 Re5 Rd8 Rdd2 Rf7 Qc2 Qdg4 Nh7 Rd6 Reh5 Na6 Ng5 Nb3 Qb2 Qd7 Ba8+ Kc8 Qc3 Rf5 Qd3 Qb2 Qb1 Qbe5 Bb7+ Kd8 Qb2 Nb4 Qa3 Rd3 Qa2 Nd4 Qb3 Rc3 Rd3 Rc1 Rdd2 Qde6 Rd3 Re1 Rd1 Bd5 Rc5 Qb8 Rb5 Kc7 Rc5+ Ndc6 Kb5 Qd7 Rd3 Kd8 Kb6 Nd4 Rdd2 Bc6 Rd1 Nd3 Ka6 Kc7 Qb2 Nhf2 Qc2 Nh1 Qb3 Nb4+
B2n2k1/1N4pn/bPN3B1/KQn1Bpr1/4R1b1/1NrNbq2/6n1/Qq2N2R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 g3 h4 a4 h5 a3 b6 f3 h6 a2 b5 f2 b7 g2 h7 c4 e5 Bd7 d6 Ra5 Kb4 c3 e6+ Kf6 e7 Kf7 d5 c2 Bb2 c1Q Nf3 g1N Nbd2 Be6 d7 Ra3 d6 Nh3 Bg2 f1B Nb3 Bec4 Ne1 Bce2 Be5 Nf4 b6 Qe8 d8Q Qb1 Qd7 Nf6 Qb5 Qc6 d7 Bg4 Rh4 Qf3 d8N+ Kg6 Bh1 Ng2 Qd4 Bh5 Re4 Bg4 Qbd7 Ba6 Qb5 Rg8 h8N+ Kh7 Ng6 Rh8 Qg1 Kg8 Nf4 Rh5 Nfd3 Nh7 Qd4 Rg5 Qc3 Nd7 b8N Nc5 Nb7 Ne6 Nc6 Nd8 Qb2 Qc2 Rc1 a1N Qd4 Qb1 Qg1 Ra2 Qf1 Re2 Ka5 Rc2 e8B Rc3 Bg6 Ba3 Qg1 Bc5 Qd4 Nc2 Qda4 Nd4 Qa1 N4e6 Rc2 Nh4 Rh2 Be3 Bg2 Nc5 Rh1 Qh3 Bf3 Ng2 Ne7+ Kf8 Rb4 Qb2 Nd6 Bc1 Ba8 Qb1 Nb7 Be3 Re4 Qf3 Nc6 Kg8
b3N3/1rr2Pb1/3K1Bk1/1q2n3/R1BR1Rb1/r2N3B/1p2BpQq/1Qb1B2n w - - 0 1 illegal: No proof kernel
1qq4b/1B3pQQ/1rr1QbRb/rQ5P/N3Nn1k/K7/1p1Nb3/BnQ3R1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 e4 Kf6 d4 c5 Kd2 b5 Kc2 g5 Kb3 f3 a4 f2 e5+ Kf5 d6 g4 h6 g3 a5 g2 e6 Nf6 d5 Nh5 a6 Bg7 a7 Nc6 e7 Bf6 e8Q Ba6 h7 Nf4 d7 Qb8 d8Q Ne7 d6 Ned5 h5 Kg5 d7 Nc3 Ne2 g1B Bg2 f1Q Qb6 Bgd4 Rg1 Kh4 Bb7 Qh3 d8Q Qhc8 Qee6 c4+ Kb2 b3 Ng3 b4 Qg8 Bde5 Qg7 Rd8 h8Q Rd6 Qb5 Rc6 Qhh7 Bd4 Qgg6 Bh8 Ne4 Bdf6 Qc5 Bb5 Qgg7 Ba6 Be3 Bb5 Bd4 Ba6 Kc1 b2+ Kc2 Bb5 Nbd2 b1R Rg6 Rb2+ Kc1 b3 Qcd5 Nb1 Be5 c3 Qc5 Be2 Qb5 c2 Qf1 Ra2 Qg1 Ra5 Kb2 Raa6 Qc1 Nc3 Rb1 Rab6 Ka3 Nd1 Ba1 Nc3 Qg1 b2 Qgc5 Qe5 Rbg1 c1B Qcc4 Rb8 a8N Ra6+ Kb3 Ra5 Nb6 Qd6 Na4 Qe5 Ba6 Rbb6 Ka3 Qeb8 Bb7 Nfd5 Nf1 Bh6 Nfd2 Nf4 Qcc5 Na2 Qc2 Nc3 Qc1 Nb1+
1B3q1R/2q1P1pr/QBQBp1nk/4n2r/Bb1B1RQ1/3b2r1/r1N5/1b3K1N w - - 0 1 illegal: No proof kernel
1Bq5/nrQp2kr/NB1RB1B1/3rn3/1QbN1NPb/1bb2qpR/3KB3/8 w - - 0 1 illegal: No proof kernel
qR1b4/N1P1kN2/n4r1r/p1Nq1r1Q/p1bN2RQ/2BB4/1NnK4/B1rq4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 bxa4 h4 e5 b4 d5 f4 a5 c4 g5 c5 d3 h6 d4 b5 e4 b6 e3 f6 g4 f7+ Ke7 b7 e2 f5 g3 h5 g2 c6 Qc7 h7 Qd8 h6 Kd6 f6 Qd7 c7 Qh3 Bd2 Be6 Nf3 g1Q Nc3 Qg7 Rb1 Ba2 Rg1 Qe6 Rg4 Na6 b8N Ne7 Nc6 Qg8 Na7 Bc4 Rb8 Nd5 Ne5 Bg7 f8N Ndb4 f7 Bf6 Nfd7 Ke7 f8N Qd5 Nf7 Bg5 Ne6 Nc2+ Kf2 e1R Ndc5 Re3 Qe2 Re4 Nd1 Re5 Bc3 d2 Nb2 d3 Nd4 d1R Qe4 d2 Bd3 Re6 Ke2 Rc1 Qe5 Qe8 Qe4 Rf8 h8B Qec6 Be5 Rf6 h7 Rf5 h8Q Qb7 Nd8 R8f6 Qh5 Rh6 Nf7 Rff6 Rg8 Rf8 Qeh1 Rf5 Q1h4 Qa8 Rh8 Rb8 Rd8 Rbb6 Rb8 Rbf6 Nf3 Rb1 Bcd4 Re6 Nd1 Rc1 Ba1 Rb6 Nb2 Rbg6 Ne6 Kd7 Bc3 Bd8 Nfd4 Rgf6 Nc5+ Ke7 Qf2 Na3 Qfh4 d1Q+ Ke3 Q1f3+ Kd2 Nc2 Be2 Qf1 Bd3 Qd1+
7b/Q1p2k1N/qQB2q1K/1R1b2n1/r1Qp3Q/2nn1Q1R/2PRB1r1/N1q3n1 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 a5 Ke3 g5 f4 d5 b4 g2 h4 g3 f5 a4 b6 g4 Kf4 d4 e4 a3 b5 a2 h5 Bd7 e6 Nc6 f6 Bg7 Kg5 Ra6 e7 Nb4 b7 Nd3 b8Q Bc6 f7+ Kd7 f8Q Ke6 e5 Nh6 b6 Nb4 b7 Be4 Qf7+ Kd7 e6+ Kd6 Qdf3 Nf5 h6 Nd3 h7 Qc8 e8Q Rg8 h8Q Nh6 e7 Ra4 Qb5 Qe6 e8B Bd5 Nh3 g1Q Bc6 g2 Nd2 g3 Be2 Qc1 Qa7 g1N b8R g2 Qbb6 Qf6+ Kh5 Ke5 Ng5 Kd6 Qh7 Bh8 Nb3 Rg7 Qfg8 Ke7 Rh3 Nf7 Rb1 Rg6 Na1 Rg7 Qh6 Rg6 Nh7 Ng5 Qb3 Rg7 Rb5 Rg6 Qgb8 Kf7 Qbb6 Rg8 Qc4 Rg7 Bd1 Ne2 R1b3 Nc3 Be2 g1N Rb1 Qe3 Rd1 Qc1 Rd2 Ne6 Qhf4 Rg2 Q4e4 Ng5 Qh4 Qf4 Nb3 a1Q Kh6 Qaa3 Qe4 Qff1 Na1 Qe7 Qe3 Qd8 Qee4 Qc8 Qe3 Qa6 Qee4 Qf4 Qf3 Qf6+
N1B1Nnr1/K1p3n1/b2b2q1/1p1P1B1q/RB3B2/3Q1r1R/1Bqr1k2/1Qq2N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d6 Kf7 Ke2 Kf6 Kd3 Kg5 Kc4 Kf4 Kb5 h5 d4+ Ke4 a4 e5 f4 b6 g4 h3 f6 h2 f5 b3 d7 h4 a5 b2 a6 h3 a7 Rh6 f7 Ne7 g5 Rh8 g6 Nec6 g7 Na5 g8B Nb3 f6 Qe8 Ra4 Nc5 Nf3 Ne6 Nfd2+ Ke3 Na3 e4 Bd3 b1Q+ Bb2 Ng7 Qc1 Be7 f8B Rh6 d5 Qg6 d8B Qc2 Qb1 Nd7 Be6 Rh4 f7 Rf4 Nf1+ Kf3 Bd4 e3 Bb2 e2 Nc4 e1Q Nd6 Qec1 Bg4+ Kg2 Be6 Rb8 a8N Rd4 Bg4 Kf2 Be4 Rd2 Bd3 Rb7 Ka6 Rb8+ Ka7 b5 Be4 Ba6 Be6 Bh4 Bg5 Bg3 Bfe7 Rf8 Ne8 Rg8 f8Q+ Bf4 Qf6 Nf8 B4f5 Bg3 Bb4 Bd6 Rg1 h1Q Qc3 h2 Bc8 Qf3 Qd3 h1R Bf4 Rh3 Rh1 Rg3 Rh4 Qfh5 Rh3 Rf3
r2q2n1/r1p1kB1P/NrR4b/3QK1q1/2p1RB2/N1R2rn1/2n1QN2/2Nb3N w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 g4 hxg4 a4 d5 axb5 dxc4 Ke2 e5 Ke3 a5 Ke4 g5 b4 g3 h4 a4 d4 g2 f4 a3 h5 g4 f6 g3 b6 a2 b7 Nd7 b8N Bg7 d5 Ra5 f7+ Ke7 f8N Bb7 h6 Ra6 b5 Qc8 h7 Ra7 b6 Ba6 d6+ Kd8 b7 Nb6 d7 Na4 f5 Bf6 Qe2 Ke7 d8Q+ Kf7 Ng6 Nb6 Nc6 Na4 b8N Nh6 Na5 Bg7 f6 Rf8 Nh3 g1R Nh4 g2 Nb3 Bb5 Nf5 Ng8 Nf2 Bh6 Na6 Nc5+ Kd5 e4 Ke5 e3 Rh4 Qa8 Ng3 Ne4 Ngh1 Ba4 Na3 Ng3 Qd5+ Ke8 f7+ Ke7 Rf4 Qd8 Re4 Ra8 Rb1 a1R Rb2 Rb1 Rc2 Ra7 Bd2 Re8 Nc1 Rb6 Rc3 Bd1 Qed3 e2 f8R e1N Rf6 Rf8 Be2 Rf1 Bh5 g1Q Bf4 Nc2 Bf7 Qg2 Rc6 Re8 Ng4 Rf3 Qf1 Qd7 Qe2 Rea8 Ngf2 Qd8 Na2 Qh3 Nc1 Qh4 Nh3 Qg4 N3f2 Qg5+
rB4R1/1P1p1nbb/3Q1K2/2n3Q1/1N1n2q1/Q2Bp2k/b3r1R1/1B1QQNbq w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 h5 f4 a5 b4 e5 c4 a4 g4 a3 g5+ Ke7 f6+ Ke6 c5 h3 f7 h2 g6 d3 f5+ Kf6 g7 h4 b6 a2 c6 d2 b5 Kg5 f6 h3 c7 Kh4 Kf5 e4 b7 Na6 b8Q Nb4 b6 Qe8 Bd3 Ra7 Ne2 Na6 Nbc3 Bb7 c8B Ra8 Bb1 Bd5 Rg1 h1B Rg2 h2 Qd6 Nc5 Ba6 Kh3 b7 Qe6+ Kg6 Be7 f8Q Nh6 g8Q Nf7 Bad3 Rh5 Qe8 Re5 Ng3 Qg4+ Kh7 Bd8 Qg5 Bb6 Kg7 Be6 Ba3 Bf5 Qee6 Bh7 Nd5 Ba7 Nb4 Bb6 Qe2 d1N Nf1 Ne3 Qd1 Nc2 Bc1 Nd4 Bf4 Rf5 Bg3 Rf2 Bf4 Re2 Qe8 Ne5 f7 Ba7 f8Q Nf7 Kf6 Bb6 Rf2 Bf3 Rg2 h1Q Qde6 Ba7 Bb8 Bb6 Qed6 Ba7 Bbc2 Bb6 Rc1 a1B Bb1 Bd8+ Kg7 Ndb3+ Rc3 e3 Qf4 Nh8 Qef7 Na4 Qgg6 Ra7 Na6 Ra8 Qa3 Bh4 Qfd6 Bd5 Qg5 Bf2 Nb4 Bg1 Qf2 Nf7 Qfe1 Be6 Qb2 Bd5 Rc8 Nac5 Rg8 Bc4 Kf6 Be6 Ke7 Bd5 Qa3 Bg7 Rf2 Nd4 Rg2 Bf8+ Kf6 Ba2 Qc2 Bh6 Qcd1 Bg7+
2n3Kq/1p1Br2N/R3QQ2/2r5/1PNp2n1/qqb2N2/qN1b4/BNkBR2r w - - 0 1 illegal: No possible last move
BnnNR2b/np1bQK1q/3N2N1/r3p3/4r1Q1/bNB1kBqP/4n3/2N1R3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 g5 d4+ Kb6 f4 c5 a4 g3 h3 g2 d6 g4 d7 b3 Ke6 b2 d5 g3 f6 c4 f5 Kc5 f7 c3 d6 c2 f6 Ra5 Qg4 Rh7 Nd2 b1Q Nb3+ Kb6 Bd2 c1N Bc3 Qc7 Ne2 g1B Bg2 Nd3 Bf3 g2 Nec1 Bd4 Re1 g1N Ra2 Rh6 Rae2 Ne5 Re3 Nec6 R3e2 Bg7 f8N Rh4 f7 Bc5 Ng6 Na7 f8Q Bh8 Kf7 Ba3 d8N Bd7 Re3 e6 Qe7 Qc2 Re5 Qh2 R5e3 Ne2 Re5 Qg3 Re4 Rc5 a5+ Kb5 a6 e5 Rf4 Kb6 Rf6 Ra5 Re6 Bc6 d7 Kb5 Qh5 Kc4 Qhg5 Re4 Qg4 Nc8 a7 Bb5 a8B Na7 Qeh4 Ne7 Qf6 Nec8 Re8 Ba4 Qe7 Bc6 Ke6 Bb5 Nf7 Ba4 d8N Bb5 Na2 Kd3 Nd6 Ke3 Nac1 Qd7+ Kf7 Qf5+ Qf6 Qh5 Qfe6 Bd7 Qe7 Qh7+
1Bk1q1Q1/1p1R3P/2N1r1R1/n1rb1bn1/3RN3/4b3/RRB1r2p/Kr2QB1q w - - 0 1 illegal: No possible last move, all moves rejected
2RNN2q/pq1b1B2/4r1rk/2N3n1/nq6/p1QP2n1/2Qq1NKb/BR1QN3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 g4 Kf7 b4 Kg7 f4 e5 Kf2 c5 f6+ Kg6 f7 h5 f5+ Kh7 d6 a3 f6 e4 d7 c4 g5 e3+ Kg2 c3 b5 c2 g6+ Kh6 g7 e2 b6 e1Q b7 Qde7 d8N Bg4 Bb2 c1Q Nc3 Bd7 Bc4 Na6 b8N Nc5 d3 Na4 Ne4 Q1b4 Na6 Qcd2+ Nf2 Rb8 Rc1 Rb6 Ba2 Re6 Nf3 Qb7 Qc2 Qeb4 Nc5 Bd6 f8Q Bh2 f7 Nf6 Ba1 Ne4 Ne1 Rg8 Qd6 Ng5+ Qc6 Qa8 f8Q Qab7 Qff3 h3+ Kf1 h4 Qfd1 Be5 Qc3 h2 Kg2 Bd6 Rf1 h1N Bc4 Ng3 Rb1 Rg6 Bf7 Re8 Rg1 Ree6 g8N+ Kh7 Nf6+ Kh6 Ne8 h3+ Kh2 Bc7 Rf1 Bb8 Kg1 h2+ Kg2 Qd4 Qcc2 Qbb4 Qc7 Qh8 Qe5 Bc7 Qec3 Qc1 Qdd2 Be5 Rb2 Qf4 Rb8 Qb1 Nf3 Ne2 Rc8 Qbb4 Rb1 Bd6 Qdc1 Qd2 Kf1 Bc7 Q1d1 h1Q+ Ng1 Qhe4 Nf3 Qeb7 Kg2 Be5 Qd4 Bh2 Qdc3 Qb8 Ne1 Ng3 Ng7 Q8b6 Ne8 Qb7+
b1Bn2Rr/1b2n2b/2P1NK2/1p1B1pN1/3Q4/bRQBrbqB/4b1NB/5k2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kh4 Kd5 g4 Kc4 e4+ d3 a4 d5 a5 h5 a6 b5 e6 f5 e5 d4 a7 b3 e7 b2 e8Q Qd6 g6 Bb7 Kg5 h4 e6 h3 g7 h2 e7 Qb6 Nd2+ Kc3 Qc8+ Qc6 e8B b1B Bd7 Na6 Ngf3 Bb4 Rg1 h1B Nh4 Bf8 Ne4+ Kc4 Bh3 d2 Ra3 Rb8 a8N d3 Nc7 Ba8 c3 Nf6 g8B+ Nd5 Rg3 Qb7 Kg6 Qa7 g5 Ba2 Qg4 d1B Bf4 d2 Rg2 Kd3 c4+ Bab3 c5 Qb7 Bh2 Nab4 Kf7 Bd6 g6 Nc6 g7 Ke3 Kg6 Be2 Bge6 Qa7 g8B Rb6 Rg1 Nde7+ Kf6 Qb8 Bc4 Nd8 Bd3 Bf7 Rc3 Bg6 Rb3 Bh7 Qf4+ Kd4 Qe5+ Ke3 Rg7 Bhf3 Ng5+ Kf2 Ng2 Bfb7 Bd5 Bf3 Rg8 d1B Qa1 Bde2 Qd4+ Kf1 Ne8 Ng6 Ng7 Bf8+ B7e6 Qg3 Qc7 Rd6 c6 Rd7 Qa5 Re7 Bc8 Re3 N7e6 Ba3 Qac3 Ne7
N1R1Q1nK/1bb1pn1n/2r1P1R1/6B1/4RR1B/1nn1QpQr/Nk2qR2/2n5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Kd7 d4 Kd6 b4 c5 h4 f5 e4 a5 g6 c4 b6 c3 h5 f3 Kg3 c2 Kf4 a4 Kg5 f2 b7 f1N b5 g3 h6 a3 e5+ Kc7 g7 Kb6 Kg6 Ka5 e6 Kb4 d6 Kb3 h7 f4 d5 a2 b6 g2 d7 f3 d6 Nh2 Ne2 g1N Nd2+ Kb4 Nc3 Na6 b8B Ne2 b7 Ra7 Re1 Nh6 g8R Ra8 Nc4 Kb3 Qd2 Nf7 Nb6 Ra7 Na8 Qa5 d8R Nc7 d7 Bg7 Qd4 Ne8 Bg5 Qa6 Qf2 Nh6 Bg3 Be5 b8Q+ Bb7 Rc8 Nd6 d8R N2g4 Rdf8 Nf6 Kg7 Kb2 Rac1 a1N Na2 Nc3 Re4 Qe2 Rf1 c1N Qe3 Nab3 Rf2 Nfg4+ Rf6 Ra6 Rgf8 Rc6 Rf7 Re8 h8Q Bf4 Rg6 Nf6 Qc7 Rd8 Qd7 Rf8 Qe8 Be5 Qh7 Rh8 Rf8 Nhg8 Qh2 Rh3 B3h4 Bf4 Qg3 Nh7 Rff6 Nf7 Rf5 Nfh6 Kh8 Bc7 Rff4 Nf7+
1b3Bn1/Q2P2r1/3bkNbr/1Rnq2R1/p2b1Q1b/Qb3KQ1/2Bp3R/1Q1N4 w - - 0 1 illegal: No proof kernel
2nb1n2/3p1bN1/R4nNn/RK1prPQq/Q1nB4/2B1nk2/2BB3r/R4B2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c6 h4 gxh4 d5 cxd5 axb5 Qb6 Bd2 Qc7 Bc1 Qd8 Ke2 Kf7 Kd3 Kf6 b4 Ke5 g4 a5 c4 h5 b6 a4 g5 a3 b7 h3 c5 h4 f6 h2 f7 a2 f3 h3 c6 Na6 b8Q+ Nc7 b5 Nh6 b6 Ba6+ Kc3 Bd3 Kb4 Bg6 f4+ Ke4 b7 Qe8 Nf3 Ne6 c7 Ra3 c8B Re3 f5 Rh7 Rg1 h1N Qg3 h2 b8B Nf2 Be5 h1N Kb5 Nfg4 Bd2 Nhf2 Bec3 Nf6 Nh4 Bg7 f8B Bf7 g6 Bh8 Bg7 Nf8 Bh3 e5 Ba6 Re1 Qg5 Re2 Ng2 Kf3 Qa4 e4 Nf4 e3 Nh5 N2e4 Na3 Rh2 Rg4 e2 Bf1 e1N Nc4 Nd3 Rg1 Nb2 Ne5+ Kf2 Bd3 Nc4 Bc2 Ke2 Rgb1 Kf2 Rb3 Ke2 Ra3 Ned6+ Kb4 Nc8 Kb5 Ne4 Bf6 Kf2 g7 Ke2 Rg1 a1N Ng6 Kf3 Bfd4 Nf6 g8R Re2 Ng7 Re5 Bd3 Nc2 Rga1 N2e3 Bc2 Nhg4 Qb4 Rh3 Ra5 Rh2 Qa4 Nh6 Kb4 Nb2 Bf1 Nbc4 Kb5 Nfg4 Nh5 Bf6 Ng7 Bd8 Rh8 Ng8 Rh6 N4f6 Ne7 Nh5 Rc6 Nh6 Rca6 Nf6 Ng6 Bg8 Ne7 Qh5 Ng6 Bf7
1N1n1b1k/Pb1p1b2/1rn2b2/N3NR2/Br3Q2/q2p2BK/1b3QN1/R2bN1Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 f4 g5 Kf2 Kg7 Kg2 e5 c4 b5 a4 e4 a5 b3 a6 b2 c5 b4 h6+ Kh7 f6 b3 f5 e3 c6 e2 f7 e1B a7 g4 f6 g3 h5 Na6 c7 Bb7+ Kh3 g2 c8N Qe7 Bb5 d3 Ba4 Be4 Nd2 b1B Nc4 b2 Bf4 Qe5 Ne7 Nc7 Bg3 Bb7 Na5 Nd5 Nec6 Qe7 Nf3 g1B Nb8 Bd4 Rf1 Bec3 Ne1 Nc7 Rf5 Bc2 Qg4 b1B Qg5 Bg7 f8Q Ne6 f7 Bb2 Qf4 Qb4 Qc5 Qa3 f8Q Bdf6 Qg1 Bd1 Qfc5 Ne7 Qcf2 Kg8 h7+ Kf7 h6 Bf8 Q4d4 Nd8 Qde3 Rg8 Qef4 Rg6 h8N+ Kg8 Nf7 Nec6 Ne5 Ba2 h7+ Kg7 h8N Bf7 Q4d2 Rg4 Nhg6 Rb4 Nh4 Kh8 Nhg2 Rb6 Na6 Rb8 Qff4 Ba8 Qdf2 R8b7 Nb8 Rb4 Na6 R7b6 Nb8 Bb7
2N1nNN1/1r1r1B2/8/n2bQR1N/k3bRPB/1p4q1/N1rB2pb/4KbrQ w - - 0 1 illegal: No proof kernel
1R4nR/NQ1Bn3/2r2R2/Q2bnNKb/1NbN1pp1/2BP3n/8/N1brqk2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 e4 Kg5 h4+ Kf6 a4 Ke5 h6 Kd4 a5 g5 e5 f5 d6 c5 a6 b5 h5 b3 a7 b4 e6 b2 d7 b3 h7 c4 h6 c3 e7 c2 e8N Qe7 d8N Be6 Ne2+ Kd3 Nc7 Nc6 Nd5 Rc8 Na3 b1B a8Q b2 Qb7 Bf7 Rh2 Ba2 Bh3 b1N Rf2 Nc3 Nd4 Qe1 Rb1 Ne2 Bb2 c1N Nac2 Ba3 Na1 Nce7 Qa4 Rc6 Bc3 Bh5+ Bg4 Bc4 Qa5 Bb3 Qba8 Ba2 Rb8 Bc4 Qb7 Ng1+ Kg2 f3+ Kg3 Nh3 Nb4+ Ke4 Qab6 Nd3 Qa5 Ne5 d3+ Ke3 Ndb3 Rd6 Nd4 Rb6 N8c6 Bc1 Na7 Rc6 Qaa6 Nf6 Qa5 Re8 h8N Nfg8 h7 Rec8 Nf7 Re8 h8R f4+ Kh2 Rec8 Ra2 f2 Nh6 f1B Bd7 Bg2 Ra3 Kf2 Nhf5 Kf1 Ra2 Bgd5 Re2 N5g6 Re6 Re8 Rf6 Ne5 Rd8 Nf3+ Kh1 Qe3 Na6 Ng6 Rb8 Re5 Nb4 N6e7 Ra8 Re4 Rd8 Ne5 Rb8 Nf2+ Kh2 Qd2 Qaa6 Re1 Qa2 Rd1 Qa5 Ne4+ Kh3 g4+ Kh4 Nf2 Kg5 Qe3 Nf3 Qe1 N3d4 Nh3+
5Nb1/1bbBnk2/2N2r1R/R1Rp1n1n/1p4QP/B1Kn3r/1RQ1b2q/N6R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 b5 f4 e5 h4 g5 a4 d5 c4 e4 f6 b3 a5 b2 f5 g4 f7+ Ke7 h6 d3 h7 g3 c5 g2 c6 e3+ Kc3 d2 c7 e2 a6 e1N a7 Nd7 Ne2 g1N Nd4 Bb7 c8Q Ngf3 Ra2 Nd3 Qc2 d1B Na3 b1B Bh3 Ndf6 Rb2 Nh5 Nc6+ Kf6 Qd7 Bd6 f8N Bc7 Bg4 Rc8 a8R Be2 Ra5 Ne7 Bh3 Kg7 f6+ Kf7 Qg4 Rg8 h8R Rg6 Rh6 Qd6 Rf1 Nd4 Rh1 Kg8 f7+ Kg7 Qg1 Qh2 Bd7 Ndf5 Qg4 Ra8 Qd2 Ra7 Nc2 Ra6 Na1 Rb6 Nd4 Rf6 Nc6 Rg5 Qc2 Rgg6 Nh7 Rg5 f8R Rgg6 Qf4 Rg3 Rc8 Rh3 Qg4+ Kf7 Nf8 Bg3 Nb8 Nb4 Rb3 Ne3 Rc5 Bc7 Qb2 Bh7 Qc2 Bg8 Ba3 Nd3 Rb2 N3f5 Nc6 b4+
B1RqN1k1/RNb1B3/2n1r1p1/1Q1P3K/N3NQNb/r2p1Q1r/1n3bb1/3r4 w - - 0 1 illegal: No possible last move, all moves rejected
q3rQ2/5Rr1/1Q2pbQ1/B1R2p1R/P2rrk1n/RN1bN2R/1Kbn4/1b5B w - - 0 1 illegal: No proof kernel
1B1r1n2/3b1B2/p1r2b2/1B1rq1Q1/3Nn2p/1RRrQK2/k1PB1Bb1/1b1N3Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 f4 d5 b4 Kd7 g4 Kd6 g5 e5 f6 e4 g6 d3+ Kf2 e3+ Kg2 h3+ Kg3 d4 g7 e2 b6 e1R b7 h2 f5 d2 f7 a6 f6 h4+ Kg2 d3 b5 Kc5 b6 Kb4 Kf3 Qc7 Ne2 Qe5 Ra3 Bd7 Nbc3 Rh6 Nd4 Be7 f8B Rg6 f7 Rc6 Rg1 Nf6 g8B Ne4 Rg3 Re2 Qe1 d1R Bd2 Rg2 Qe3 h1B Bh6 Bf6 Be1 d2 Bf2 Be6 Bb5 Nd7 b8Q Ba2 b7 Bb1 Qd8 Nf8 Qd5 Rd8 b8B Qd6 Qdg5 Qe5 Ra2 Rd5 Rb2+ Ka3 Rb4 Rdg1 Nd1+ Ka2 Rh3 Rf1 Rb3 Rg3+ Ke2 Bg2 Rc3 Nh7 f8Q Rf3 Qe7 Nf8 Bf7 Rh1 Rb3 Rd8 Qd7 Rf5 Rf3 Rh3 Qb7 Rg3 Qef4 Rh3 Rfc3 Rd3 Qfg3 Qd6 Q3e3 Rd5 Qc8 Qf4 Qch3 Qe5 Qh1 Bh3 Nb2 Bd7 Kf3 d1B+ Kg2 B1g4 Nd1 Bh3+ Kf3 Ng6 Bf8 Bf1 Ba3 Nf8 Bc1 Bfh3 Bd2 Bg2+
KNb2n1N/1QrB1bp1/5n1N/q1n5/1r1k1nN1/2pNRQ2/1P1Rbb2/6BB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 h4 c5 e4 a5 e5+ Ke7 e6 Kf6 b6 g3+ Kf3 g2 Ke4 a4 h5 f3 h6 c4 d6 a3 Kd5 f2 e7 c3 e8B a2 b7 Na6 Kc6 Nc7 b8N Nb5 h7 Bf5 Kb7 Bh3 d5 Ke5 d7 f5 d6 f4 Be3 f3 Rh2 Nc7 Nd2 Ra4 Ne2 g1N Bg2 f1B Nc1 f2 Bh1 Nf6 Qf3 Ne2 Ne4 Ne6 Nd3+ Kd5 Re1 a1N Rg2 N2f4 Ba7 Nb3 Ka8 Qc8 d8N Rb4 d7 Bc5 Nc1 Kc4 Nf7 Qa6 d8Q Qa5 Qe7 Rf8 Bc6 Rc8 h8N Nf8 Qb7 Rc7 Nh6 Bc8 Bd7 Bd3 Re2 f1B Nf2 Bg6 Nfg4 Bf7 Nd3 Bg1 Re6 Bd4 Rd2 Be2 Na6 Bg1 Bf2 Nc5 Re3 Bh2 Bg1 Kd4 Ngf2 Bg3 Nfg4 Qb5 Nb8 Bf2 Be6 Qb6 Bd7 Qa5+
1kbR1bN1/p7/2RRrR2/KB1n1nr1/3r3B/2n2BPR/2prq1Q1/1N2Qn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 d4 h5 Kd2 c5 Kc3 Kc7 e4 f5 b6+ Kb7 g3 f3 b5 h3 e5 h2 d6 h4 d5 h3 e6 c4 Kb4 f2 e7 c3 e8B c2 Bg5 f4 Bg2 f1R Bh4 f3 Ra6 f2 Qe1 Bh6 d7 Qg5 d8R Ne7 d6+ Nd5+ Ka5 Qe5 d7 Qe2 Nf3 Bf8 Ne5 Rg8 Ng4 Rg5 Bf3 Rg1 Nf6 f1N Ng8 Nc6+ Ka4 Nce7 Ka5 Kb8 b7 Nf5 Rc6 Rg2 Rf6 Kc7 b8R Rf2 Rbb6 Rb8 Rg1 h1R Rbc6+ Kb7 b6 h2 Rg2 Ra8 Rg1 Kb8 Rg2 Rg1 b7 h1N Rh2 Rfg2 Rh3 Nf2 Bg6 Nd1 Bf7 N5c3 Bc4 Nde3 Bb5 Ned5 Rfd6 Bh6 Rf8 Rh1 Rff6 Bf8 d8Q Rhh2 Qe8 Rf2 Qe4 Rhg2 Bh5 Rf4 Bg4 Rgf2 Qg2 Re4 Bh5 Rff4 Bf3 Re6 Rd8 Rd4 Rcd6 Kc7 b8R Rd2 Rbb6 Rb8 Qh1 Rb7 Qg2 Kb8 Rbc6 Rb6 Ba4 Rb4 Bb5 Rbd4
1BqQKRR1/Qb1p3n/2bPbb1b/8/Q4Q1N/1n2r3/1Np1Bn1N/1k2q1Q1 w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 a4 g5 h4 gxh4 b6 Ra6 b7 Rg6 b5 Rg5 b6 Rb5 axb5 a4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 c5 d4 h3 g5 f3 g6 c4 g7 a3 Bf4 f2 Nd2 h4 Ngf3 a2 Nh2 c3 Nc4 Na6 b8Q Bb7+ d5+ Kf6 e3 Qc8 Be2 f1Q Qa7 Qe1 Qa4 c2 Bb8 Nc5+ Kf4 Rh6 e4 Nb3 Rf1 Rg6 d6 Rg3 Nb2 Re3 e5+ Ke6 Kg5 Kd5 e6 f5 Kg6 f4 Kf7 f3 e7 f2 e8Q Nf6 g8N Bh6 Qd8 Nh7 Ne7+ Kc5 Rd1 a1B Ng6 Bc6 Rg1 f1B Rc1 Bfg2 b7+ Kd5 b6 Be4 Nf8 Bf5 Rg8 Be6+ Ke8 Ke5 Ng6+ Kd5 Qa2 Kd4 Q2a4+ Kc3 Qf4 Kd2 Qaa4 Kc3 Ba7 Kd2 b8Q Kc3 b7 Kd2 Nd3 Bf6 Nb2 Kc3 Ra1 Kd2 Ra2 Kc1 Qc7 Kb1 b8Q Bb7 Qc5 Bc6 Qc7 Bb7 Bb8 Bc6 Ng4 h2 Q7a7 h1N Nh2 h3 Nh4 Nf2 Qcg5 Bb7 Qg1 Bc6 Nf1 h2 Ra3 h1B Nh2 Nd2 Rd3 Bb7 Rd5 Nb3 Rf5 Bh8 Rf6 Bhc6 Rff8 Bf6
2bb2k1/2nBbp2/1Q2B1NR/b4P1R/1qnr1b1q/QnNR4/p7/1B1K1BB1 w - - 0 1 illegal: No proof kernel
1Nk1B1Q1/p1B1n1Qn/1q4Q1/PbR2n1p/bqnb4/3Qn2K/6rQ/2NR1B2 w - - 0 1 legal: proof: g4 d5 h4 f5 b4 fxg4 e4 c5 bxc5 dxe4 Na3 b5 Qe2 g5 Qd3 g3 Qe2 g4 Nb1 Na6 Qf3 Rb8 Qd1 Rb6 Bh3 Rg6 Bf1 Rg5 hxg5 Bd7 Bd3 Be6 Bf1 Bc8 d4 Kd7 a4 e5 f4 h5 c4 e3 d5 e2 f5 e4 d6 b4 f6 b3 f7 g2 Kf2 e1N Kg3 b2 a5 e3 c6+ Ke6 c5 e2 c7 Kd7 g6 Nb8 g7 Nd3 Nd2 b1B Qc2 e1N Ne4 Nf6 g8Q Qe7 Qg6 Nc6 Ne2 g1N Bf4 Nh7 Nc1 Nb2 Qh2 Ba6 Nf6+ Kc8 Nd7 Ng2 Nb8 Bg7 Be5 Re8 f8Q Bc2 Qg8 Bh8 Q8g7 Bb5 Ra4 Rf8 Rc4 Rg8 Bf4 Nf3 d7+ Kb7 d8Q Bca4 Qd5 Nfh4 Qdd3 Ne3 Rc2 Nbc4 c8Q+ Ka8 Qce6 Kb7 Bc7 Qf8 Qef7 Ne7 c6+ Kc8 Rg1 Nb6 Rc5 Nbc4 Q7h6 Bd4 Qhg7 N3d5 Rh1 Nhf5+ Kg2 g3 Kh3 Nde3 Qd5 Rh8 Qdg8 g2 Bd8 g1Q c7 Qg5 Rg1 Qgf6 Rh1 Qb6 Rg1 Kb7 c8B+ Ka8 Bd7 Kb7 Bc6+ Kc8 Bc7 Nfd6 Qd5 Rg8 Be8 Qf4 Qdf7 Ndf5 Qd5 Rf8 Qdg8 Qfd6 Re5 Qb4 Rc5 Rf7 Be2 Rf8 Rd1 Rf6 Bf1 Rc6 Qg5 Rg6 Q5f6 Rg4 Qfg6 Rg2
2R1R2r/N1N1nr2/1K1pQ2n/QN4k1/1q6/qbBnN1n1/n2P1pBq/2NQ4 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 e4 Kf6 g4 h5 e5+ Kg6 e6 a5 e7 c5 e8Q f3 Ke3 f2 b7 h3 g5 h2 b6 h4 b5 c4 Kd4 h3 Kc5 a4 Na3 c3 Ne2 c2 Bb2 c1N Bg2 f1N Bc3 Nc6 b8N Nh6 b7 Qe7+ Kb6 Na2 Nc1 Ng3 Na6 Qb4 b8Q d6 Qa7 Be6 Re1 h1Q Nc7 h2 Qa5 Bb3 Qe6+ f6 Re5 Ne7 Re2 Kh5 g6 f5 g7 f4 g8N f3 Nf6+ Kg5 Nfd5 Raf8 Ne3 Rf7 Rb1 Qg1 Rb2 h1N Rc2 Qf2 Qd7 Qg1 Bd4 f2 Ng4 Nef5 Nd5 Nc3 Ka7 Nh5 b6 Qh2 b7 Bc4 b8N Ba2 Nc6 N1g3 Nb5 a3 Re8 Nf4 Nge3 Nd3 Kb6 Bb3 Qe6 a2 Na7 a1Q Be5 Ne7 Bg7 Nb1 Rcc8 Qaa3 Nc7 Nc3 Be5 Na2 Bb2 Ngf5 Bc3 Ng3
2BQ4/p1q1b1nQ/2BN2pK/bRB5/2qbb3/NBnBr3/PN4nk/6Rb w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 c5 b4 f5 bxc5 b5 h5 Na6 h6 Rb8 Bg2 Rb6 Bh3 Rf6 Bf1 Rf7 Nf3 g6 Ng1 Rg7 hxg7 fxg4 Ke2 Kd7 Ke3 Ke6 Kf4 h5 Kg5 Ke5 c4 h4 c6 h3 c5 h2 c7 g3 c6 e3 Nh3 e2 Ba3 e1B Qh5 g2 Bc5 g1B Qh7 b4 Na3 b3 Rb1 b2 Bd3 Nh6 g8B Nb4 Bb3 Nf5 Nf4 Ng7 Kh6 Bb7 c8B Qc7 Bd7 Nd5 f3 Be3 Rg1 h1B Be8 Bd4 Bd7 Qb6 c7 Nc3 c8B Qc7 Bc6 e6 Bde4 Be7 Nd3+ Kf6 f4 e5 f5 Re8 Rd1 b1Q Nb2 Qa1 Bd3 e4 Rb1 Ke5 f6 Kf4 f7 e3 f8N e2 Nd7 Ba8 Nf6 Bb7 Ne4 Kf3 Rd1 Qc1 Nd6+ Kf4 Rg5 Be4 Re5 Kg3 Rf5 Kh2 Rg5 Bg3 Rg1 e1N Qh8 Rf8 Bdc4 Nb1 Qh7 Bef6 Be8 Bf3 Bb4 Bc5 d4 Be7 d5 Bh1 Nf5 Bd4 d6 Ng2 d7 Be4 d8Q Be1 Bd3 Q1c4 Nd6 Rf3 Bc6 Re3 Rb5 Bd2 Bc5 Ba5 Bdc2 Nc3 Bb1 Re2 Bd3 Re3
B1K1N1bR/b2Nrrqq/pR2rN2/6r1/2n3q1/B1Qp4/b2P3k/4NQRN w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Nf6 b6 Bh6 b5 Na6 c5 Ng8 c6 Bf8 Ra3 Nc5 Ra1 Nb7 cxb7 Qf6 Na3 Qe7 Nb1 Qd8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 b8Q f5+ Kh3 d5 g4 h5 e4 f3 g5 Kf4 b7 d4 e5 c5 b6 c4 e6+ Qc7 g6 f2 g7 c3 e7 d3 e8N c2 Ba3 c1R Be2 f1R Bb2 a6 Rh2 Rc6 Bd4 Bc5 Bc3 Nf6 g8R Rh7 Nd6 Re7 Bb4 Be6 Nf3 Nd5 Rh8 Ne3 Nc3 Nc4 Ne8 Bg8 Ne4 Rce6 Ba3 Qe5 Qa7 Qg7 b8N Rg1 b7 Rg5 Qb6 Ra7 Nd7 Bg1 b8N Rf7 Ndf6 Rae7 Qb4 Bd4 Rg2 Ba7 Kh2 h3 Qf1 h4 Ng3 Rd7 Nh7 Rde7 Qc3 Kg4 Rc1 f4 Ne1+ f3 Nhf6+ Kf4 Rb1 f2 Qg1 f1Q Nbd7 Qf2 Bf3 Qe2 Ba8 Qf3 Rb6 Qg4 Kh1 h2 Qf1+ Qf3 Qe2 Qh5 Rg1 Qg4 Kg2 h1B+ Kf2 Bd5 Nh1 h3 Qd1 h2 Qb1 Ne5 Qba1 Kf5 Ke3 Ba2 Qac1 Qd1 Kd4 Kf4 Kc5 Qg4 Nd6 Nc4+ Kc6 Re3 Kb7 R3e6 Ng3 h1Q+ Kc8 Qhh5 Nh1 Qhh7 Nde8 Qg2 Nf2 Kg3 Nh1+ Kh2 Qd1 Qe4 Qf3 Qeh4 Qf1 Qg4
1QN1B1KB/1np1bB1b/2b5/2Nb4/rBPR1bBk/7n/n1p1Q1R1/2b2Q1q w - - 0 1 illegal: No proof kernel
r1N3rB/5Rq1/3pN1bb/kbbQR3/1n1R1N1R/q2P2bp/3RK3/1Q3B1b w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Nf6 b6 Bh6 b5 Na6 c5 Ng8 c6 Bf8 Ra3 Nc5 Ra1 Nb7 cxb7 Qf6 Na3 Qe7 Nb1 Qd8 b8N f5 g4 c5 e4 a5 b7 h5 e5 h3 b6 c4 e6 c3 g5 h4 e7 c2 g6 f3 g7 f4 Kf2 h2 Nc6 h3 b8R a4 b7 a3 Na5 a2 Qe1 Qc7 Na3 Nf6 g8Q Nd5 N5c4 Nb4 Bb2 c1B Qd5 Rg8 Nc2 d6 Bf6 Kd7 e8R Ba3 Ne2 Bh6 Rd1 a1B Bh8 Be5 Ncd4 Qa5 Rg1 Kc7 Rg4 h1B Nb6 Bf5 Rh4 Bg6 Nc8 Qa6 Rf8 Qa4 Rf7+ Qd7 Ne7 Kb6 Re8 Qc7 b8R+ Qb7 Qb3 Ka5 Nc8 Qe7 Ne6 Qf6 Bg2 Qg7 Kf1 f2 Qa2 Nc2 Qd5+ Bc5 Rb3 Nb4 Rd3 Bf5 Rd4 Bc2 Nc3 Bg6 Ke2 f1B+ Kf2 f3 Ne2 Be4 N2f4 Bb5 d3 Bg6 Kf1 f2 Rd2 Na6 Ke2 Nb4 Qb1 f1Q+ Ke3 Qg1+ Ke2 Qc1 Bf1 Qa3 Nc7 Bf6 Re5 Bd8 Nce6 Bdb6 Rc4 Bf2 Rce4 Bg3 Rd4 Bc5
qrNR1QR1/QnB1r3/3p2R1/rbq3b1/2B2b1N/kB1P1RK1/r3b2p/3R4 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Nf6 b6 Bh6 b5 Na6 c5 Ng8 c6 Bf8 Ra3 Nc5 Ra1 Nb7 cxb7 Qf6 Na3 Qe7 Nb1 Qd8 Kf2 Ke7 b8Q Kd6 g4 Kc5 e4 Kb4 d3 h5 e5 c5 b7 a5 g5 f5 e6 d6 g6 c4 e7 f3 e8R f4 g7 a4 b6 h3 Nc3 h2 Ra2 a3 Rae2 h4 Rc2 a2 Nce2 a1R Ng3 h3 N3e2 c3 Ng3 Be7 Qa7 Ra5 b8R Ba6 b7 Nf6 g8B Qc7 Rf8 Nd7 Be2 Qc5+ Be3 Bg5 Rbd8 Ka3 b8R Bb5 Qf1 Rh7 Bc4 Re7 Rd2 c2 Rd1 c1B Nf5 Bd2 Rbc8 Rb8 Rf6 Bc1 Rg6 Bd2 Rb1 Bc1 Bd1 Bd2 Bdb3 Bc1 Ke1 f2+ Ke2 Bd2 Kf3 Bc1 Kg4 f3 Kg3 Bd2 Rd1 Bc1 Qe1 f1B Qf2 Be2 Rdg8 Bd2 Rcd8 Bc1 Qf1 f2 Nf3 Bd2 Rg1 h1Q N3h4 h2 Rf6 Qa8 Bd4 Qb4 Bb6 Nc5 Bc7 Nb7 Rg2 Qc5 Rgg6 Rd7 Ne7 Bde3 Nc8 Re7 Rf3 Bd2 Qg1 f1R Qd4 Rf2 Qh8 Bf1 Qf8 Bdf4+ Kg4 Ra2 Kh3 Bf6 Rg8 Be2 R2g6 B6g5 Kg4 Be3 Kg3 Bef4+
bNB4R/n2rQ2R/4Qb1r/p1r1nKn1/1r1Rp3/P3k2r/1NR2n1R/Q5B1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Qf3 Qd5 Qe2 fxg4 Qd1 g3 Qe2 g4 Qd1 Qg5 hxg5 Bf5 Be2 Bd7 Bf1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 c4+ Kd4 g6 a5 c6 h5 a3 b5 c7 e3 g7 e2 c5 e1N c6 g2 Ra2 g3 Nc3 b4 Na4 h4 Ba6 h3 Nb2 Bb7 c8Q e5+ Kf5 e4 f4 h2 c7 b3 Qe6 Be7 c8R Rh3 Rc2 Nf6 g8R Nh7 Rh8 Ra7 d3 Ba8 Bc8 Bg5 Bd2 Rh6 Qa1 Nc6 Bb4 Bd8 Nf3+ Ke3 d4 g1N d5 g2 d6 Bf6 d7 Nh3 d8R g1R Nd4 Rd7 Bc5 Nf2 Bb6 Na7 Nc6+ Bd4 Bc5 Nf3 Nb8 Nhg5 Rh7 Rg2 Rd1 h1R Rdh8 R1h3 Bb6 Bc5 Rd4 Ne5 Rc1 Nfg4 Na4 b2 Rdc4 b1R Rd1 Rg1 Rh2 Rb4 Nb2 Kf3 Rd6 Rgg3 Rcc2 Bd4 Bc5 Bc3 Bg1 Nd3 Rd5 Ndf2 Rdd2 R6h5 Kg6 Nf7 f5 Ke3 f6 Rc5 Rd5 Rh6+ Kf5 Ng5 f7 Bd4 f8Q Bf6 Qfe7 Ne5 Rd4 Rgh3
NR3r2/8/3bKB1B/r1q4B/B1p1n3/1n1rpQ1b/1pn1P1BQ/1Rb1kNN1 w - - 0 1 illegal: No possible last move
k1n5/qrBN4/4bp1B/1BRN2Qn/rn2pP1Q/2K1br2/R3pB2/1Bb4R w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 d4 Kd7 Kd2 Kc7 c4 Kb7 g4 a5 c6+ Ka7 c5 h5 g5 e5 d5 e3+ Kc3 f6 c7 e2 d6 a4 c6 a3 g6 a2 g7 h3 d7 h2 Nf3 Rh7 Qa4+ Na6 Bh6 Ne7 Qh4 Nb4 g8Q Qe8 d8B Be6 c8R Qd7 c7 Kb7 b6 Ra4 Rg1 h1R Qgg5 Rh3 Rh1 Rg3 Kb2 Qd4+ Nc3 Qe3 Nd5 Rf7 Nd4 Rf3 Nc6 Bg7 Nb8 Ka8 Bh3 Bf8 Bf5 Rg7 Bb1 e4 Qh3 h4 b7+ Ka7 Qhg4 h3 Q4h4 h2 Nd7 Rf7 b8B+ Ka8 Rf1 h1N Ba7+ Kb7 Bb6 Ng3 Rh1 Nh5 Ba7 Qc5 Bb6 Qa5 Be3 Qa7 Kc3 Rg3 f4 Rf3 Ra8 Nc8 Rb8+ Kc6 Rb5 Bc5 Ra5 Kb7 Rb5+ Nb6 c8B+ Ka8 Ba6 Nc8 Bc7 Bb6 Ra5 Rh7 Bad3 Rf7 Bf2 Be3 Rc5 Re7 Bb5 Bc1+ B1d3 Rg7 Rb1 a1B+ Rb2 Be3 Bb1 Rf7 Kb3 Re7 Ra2 Bb2 Kc4 Bbc1 Kb3 Re8 Kc3 Rd8 Ne5 Rd6 Nd7 Rb6 Rc2 Rb8 Ra2 Rb7
1r1Bb3/r1n1Q1NB/4p1BP/k2bpQ2/N6B/3p1rqB/n2R4/1K1nbRR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f6 e5 fxe5 gxh5 Ra4 Qd3 Ra3 Qd1 Ra8 Kd2 b5 c4 d5 Kc2 Kd7 h4 Kc6 a4 g5 f4 g4 a5 d4 a6 g3 a7 g2 h6 Na6 f5 Bb7 h7 Qe8 h5 Rd8 a8R Bg7 f6 Rd5 h6 Rd7 f7 Bf8 Qf3+ Rd5 Rd8 Nf6 Qf5 Ng4 Bd3 Nc7 Ne2 g1R Bg5 Nf2 Ng3 Rf1 Nc3 Nd1 Rg1 b3+ Kb1 b4 Bh4 b2 Na4 Rf3 Nh5 Rd7 Ng7 Rg8 h8B Ba8 Kc2 b1B+ Kc1 Kb7 c6+ Ka6 c5+ Ka5 Be4 b3 Bc2 Na6 c7 Bd5 c8B Ra7 c6 Nc7 Ba6 Qd7 Bad3 Qd6 Rd7 Qg6 Be4 Qg3 Rd8 Nb5 c7 Ba2 c8B Nc7 Bcd3 b2+ Kc2 Bac4 Rc1 Bb5 Kb1 Be8 Bd7 Nf2 Rcf1 Nd1 Qe6 Bc4 Bh7 Bb3 Qf6 Bd5 Bh3 e6 Bdg6 Bb4 f8Q Be1 Q8e7 Rf8 Qf5 d3 Rb8 Bf7 Rb4 Rb8 Re4 Be8 Re2 Bdc6 Rd2 Be4 Ka2 b1N Ka1 Na3 Ka2 Nab5 Kb1 Bb7 Nh5 Bd5 B8f6 Na6 Ng7 Nb4 Qf8 Nc7 Bd8 Qg4 Q8f7 Qg3 Qe7 Na2+
K2k2q1/2rB2p1/1pn3bR/p1N3b1/1QR3r1/NR4P1/nn1RNQb1/1R1B2r1 w - - 0 1 illegal: No proof kernel
2BbK3/1n1p1rQN/2BN1r2/p1R5/B1P1bR2/knr2Qnb/1q4p1/BB2R3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kf2 Ke7 Kg3 f5 Kf4 a5 Kg5 f4 Kg6 g3 h4 g2 b4 f3 c4 f2 e4 a3 b5 a2 b6 Ra7 e6 Na6 e5 Rb7 c6 Nc7 h5 Na8 c7 Ra7 h6 Bb7 c8B Nc7 h7 Na6 Bb2 Ra8 Na3 Nc5 Rh4 Bd5 b7 Ra6 b8R Nf6 Rf4 Qc7 Rb5 Nh5 Nh3 g1R+ Ng5 Qb6 Bg2 f1B Qf3 Ng3 Re1 Nb7 Rc5 a1N Nb5 Nb3 Nd6 Bc6 Bh1 Bh3 Ba1 Rf1 Bg2 Rg8 h8Q Qb4 Nh7 Be4+ Rf5 Qd2 Bh1 Qb2 Bg2 Kd8 Kf7 g5 Rf4 g4 Qg7 Be7 Bh1 Bf6 Bg2 Rc6 e7+ Kc7 e8B Kb6 e6 Bd8 e7 Rf2 Qf6 Rg5 Qg7 Rd5 Kf8 Rd3 Bh5 Rc3 e8B Rf1 Beg6 Rf2 Nf7 Rf6 Ke8 Rf1 Nd6 Rf7 Rg5 Rf6 Bf5 Kc5 Bfg6+ Kb4 Rc5 Ka3 Bh1 Bc6 Bb1 Be4 Bg6 Nh5 Bc2 g3 Bd1 Nc1 Ba4 Nb3 Bf7 Rf2 Bd5 Rf7 Bdc6 Rf1 Bg2 Rf2 Bf1 g2 Bd3 Ng3 Bb1 Rd2 Bcb5 Rd5 Bc6 Rdf5 Qf1 R5f6 Qf2 Bc7 Qf3 Bd8
6N1/pb1n1rn1/r1N3q1/p4NPk/3Kp2r/1Q1QN2n/1R2R1BB/2bQ2bN w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Bb7 a5 bxa5 Qf3 Ba6 Qd1 Bc8 Ke2 Kf7 Kd3 e5 b4 c5 f4 h5 g4 h3 g5 h4 f6 Kg6 f7 h2 d6 h3 d7 Bd6 f8N+ Kf7 b5 Qe8 d8N+ Kg7 b6 Ne7 b7 Qg6+ f5 Qe6 f6+ Kg8 f7+ Kg7 Na3 Qg4 Rb1 Nbc6 b8Q Be6 Qbb3 Qh5 Ng6 Bc8 f8N Nf5 Ne7 Nb8 Nfg6 Bb7 Rb2 Nd7 Nc2 Rh6 Nh4 Qg6 Ndc6 Rf8 Ne2 Rf7 Ne3 c4+ Kc3 e4 d4 Bc7 d5 Bb6 d6 Bc5 Rg1 h1R Ng8 h2 Rg2 Kh7 Ng3 Ng7 Nhf5 Rh4 Nd5 Bg1 Nde3 Rh6 Kd4 c3 Rge2 c2 Bd2 c1B Bh3 Qe6 Be1 Kg6 Bg2 Rh4 Nf1 Kh5 Bg3 Nc5 d7 Qg6 d8Q Nd7 Nb4 Rf6 Qdd3 Ra6 Nc6 Rf4 Qbd1 Rh4 Qb6 Rf4 Qbb3 Rf2 Nfh6 Rf7 Nf5 Bf2 Rbd2 Rg1 Rb2 h1N Bh3 Rg2 Bd6 Rh2 Bg2 Rh4 Bh2 Bg1 Qa2 Nf2 Qab3 Qh7 N1g3+ Kg6 Qbc4 Nh3 Nh1 Kh5 Qcb3 Qg6
B5nN/1QB3kq/1K5q/1RnR2bP/3p3R/N2rqB2/bppB4/r3Q1rB w - - 0 1 illegal: No proof kernel
4R1N1/nBBK2R1/n3pQ2/2R2pB1/2QNq2r/1PBb2q1/1b1p3q/B1krb3 w - - 0 1 illegal: No proof kernel
1R1BQq2/1n4Nr/1Q2p3/1KP1B1Br/2b2RBb/k2pn2Q/2pB1qb1/3r2N1 w - - 0 1 illegal: No proof kernel
1bBnQ3/NB3Br1/2Bp1n1P/p1N1N1nr/7p/Q2RRq2/1Kq2b2/4Bb1k w - - 0 1 illegal: No proof kernel
1nq5/2R1b3/KQP1B2N/1r2BBkN/pb3Np1/Q2R1bn1/N4qrp/5Nn1 w - - 0 1 illegal: No possible last move
n2nRQBK/b4B2/p7/P1Q1N3/Bqb4p/1Rnr4/r1q1B1p1/r2QNB1k w - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f6 d4 Kf7 dxe5 gxh4 g5 Ke7 g6 Ke8 Bg5 fxg5 Qd4 Ke7 Bh3 d5 Kd2 b5 Ke3 h5 a4 a6 c4 b4 f4 g4 c6 Ke6 c5 Kf5 c7 b3 e6 b2 g7 Qg5 e7 Be6 c8B Nd7 e8B Nh6 g8B Nb6 a5 Qg6 c6 Nf7 c7 Bc5 Nd2 b1Q Ngf3 Qb4 Rae1 Rh7 Rb1 Rg7 Ba4 Ra7 Rhe1 Nd8 Nc4 Na8 Rb3 Rf7 Bg2 g3 Bcd7 Kg4 c8Q h3 Bdb5 h4 f5+ Kh5 Kf4 h2 Ke5 h1R e4 Kg4 f6 Rf8 f7 Rd7 Qd3 Bb6 Qc5 d4 Qe2 Qh7 Kf6 d3 e5 d2 Qd3 Re8 f8Q d1N Qc2 Rh2 Bf1 Nc3 Qc1 Bd5 e6 Ba7 e7 Ra2 Qc2 Qf5+ Kg7 g2 Kh8 Kh3 Re5 Ra1 Ne1 Kh2 Qd1 Kh1 Re4 Bf7 Re2 Rd2 Re6 Rda2 Re2 Ne6 Re3 Rd8 e8B Qc2 Re5 Bg6 Bef7 Bd3 Re2 Rd6 Re5 Nd8 Re8 Rd5 Ne5 Rd4 Bc6 Rd6 Bf3 Bc4 B3e2 Rd3
QK2N2r/2RbN2p/R1Q1n3/BNB1k1p1/5NPB/3q4/3bb1Np/2rn1r1q w - - 0 1 illegal: No proof kernel
1R2B1b1/BNn1rRpr/2K1QQ2/5nB1/3P2qn/kp5R/4p1Bb/r2qBN2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Kd4 b5 h4 g3 f4 g2 a4 b3 f6 b4 a5 c6 f5 b2 f7 e6 f6 b3 h5 Qe7 a6 Qb7 h6 Qd7 h7 Qe8 a7 Bd7 Nh3 g1R Qe2 Bc8 Bg2 Nh6 Nf2 Qd7 Nd3 Na6 Rh3 Nc7 Nc5 e5+ Ke4 Re1 d4 Nf5 Nd2 b1N Nf1 Ba6 Ra2 Bc4 Bg5 Re8 a8B Re7 Ra7 Qc8 Ne6 c5 Nd8 Qd7 Bc6 Qe6 Kf3 e4+ Kf4 e3 Be8 Nd2 Qg4 Rg8 h8R e2 Bh4 Ra1 Be1 Nf3 Rb7 Ne5 Ke4 Qd7 Rb8 Qc8 R8h5 Rh8 Rf3 Rh7 Rhh3 Bb5 Rf4 c4 Rf2 c3 Rff3 Na8 Nb7+ Kc7 d6+ Kb6 Kd5 c2 d7 c1Q Rf4 Qd1 d8B+ Ka6 Bb6 Nf3 Ba7 Nc7+ Kc5 Bc4 Kc6 N3h4 Rf2 Nd6 Qe6 Ndf5 Rff3 Rd7 Rf2 Bd6 f8Q Re7 f7 Bh2 Rff3 Rd7 Qfd6 Re7 Qf6 Qe6 f8B Qe4+ Qd5 Qg4 Qdd6 Bg8 Qde6 Rf7 Bd6 Re7 Bf4 Qd2 Nc5+ Ka5 Nb7+ Ka4 Bg5 Ka3 Qh6 Nd6 Rf7 Qd1 Qhf6 Ndf5
1b1N3N/Bq4pR/Q2nr1B1/KQ3R2/2P2nB1/R4B1B/2bkp2p/2n1bqr1 w - - 0 1 illegal: No proof kernel
1n2k1nR/rQ4pq/B1rRb2B/3R4/2pbK3/QRpN2n1/R3Nq1P/3Bq3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 f5 Kf3 a5 b4 c5 d4 a4 e4 c3 h6 a3 e5 a2 b6 Ke7 h7 Ra4 b7 Nd7 b8Q Nh6 b5 Rc4 e6 Ke8 b6 Bd6 b7 Rf8 h8R Rb4 e7 Ra4 d5 Ng8 Ne2 Be5 d6 Bd4 Qb3 Ra7 Na3 Rf6 Nc2 c4 Qa3 Qb6 Ne1 Qb1 Nd3 Re6 Qc7 Nb8 Rg1 Rg6 Rg5 Be6 Be3 Qe1 Bh3 Qh4 Bg4 Qh7 d7+ Kf7 Rb1 a1Q Rb3 Qe1 d8R Rf6 Rd6 Ke8 Rh5 Rg6 Rb2 Rf6 Ra2 Rh6 Kg2 f3+ Kh3 f4 Ra6 f2 Kg2 f1N Kf3 Bf6 Rd5 Bf5 Ng3 Nc6 b8R+ Bc8 Bd2 Ne3 Rb3 Bd4 Qb7 Nb8 Rf6 Rg6 Ke4 f3 Bc1 f2 Bd1 f1Q Ne2 Nf5 Bh6 Qff2 Ra6 Rd6 Rab6 Kf7 e8B+ Kf8 Bb5 Be6 Ba6 Ke8 R6b4 Rb6 Rd6 Rc6 Rb5 Bf6 Rc5 Bd4 Rcd5 Ng3#
B7/R1b1RQpK/qNR3bp/N3Q1rP/1qn3RR/1n5p/4qN2/1k1rB2n w - - 0 1 illegal: No possible last move, all moves rejected
BBQr1n2/1B2kp2/2Q5/pq3bb1/Q2N2Rn/1qP1BpR1/K2Nq3/2n2B1r w - - 0 1 illegal: No possible last move
4q3/b2p1krQ/1QbRbN2/2BR3p/Bn2pNq1/6rB/KQ1QQP2/4q2n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 b4 a5 c4 e5 Kc2 d3+ Kb2 d2 g4 e4 g5 h3 c5 h2 c6 a4 c7 a3+ Ka2 Ra7 f6 Kf7 g6+ Ke6 f7 Ba6 c8Q Bg7 f8Q Bc3 b6 Be2 b7 Bb2 b5 Na6 b8Q Rh7 b6 Nc7 g7 Bg4 b7 Bf6 Bh3 Ne7 Ne2 Na6 Qcc2 Bd4 Qh8 Kf7 Nf4 Nf5 Nc3 Ng3 Ncd5 Be6 Qe2 d1B Be3 Qe8 Qcd2 Ba4 Rhd1 h1Q Qc7 Qg2 b8Q Rb7 Qb6 Nh1 Rab1 Qf3 Rb5 Qg4 Rc5 Bc6 g8B+ Kf8 Qbb2 Rg7 Qh7 Rb3 Nf6 Rc3+ Rd5 Ba7 Q8b6 Nb4+ Ka1 a2 Bc5+ Qe7 Bf7 Rg3 Rd6 Qe8 Bg8 Bf5 Bb3 Be6 Ba4 Ke7 Qdc3 Kf7 R1d5 Qh8 Qbd2 Qe8 Kb2 a1Q+ Kb3 Nd3 Qcb2 Qe1 Ka2 Nb4+
R1N3Rq/BB1p1qp1/3r1p2/6Q1/n1r1Pbbn/1Q3RQ1/3kn2N/1Rb2RK1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 h4 Ke6 e4 Ke5 b4 a5 c4 f3 c5 d3 h6 Kd4 b6 f6 c6 a4 h5 d2 b7 a3 b5 a2 c7 Ra4 h7 Bb4 b6 Bc3 h6 Ra5 Ba6 Bb2 Rh3 Nc6 b8R Rd5 b7 Rd6 Na3 Kc3 Nc4 Nge7 Nb6 Nd4 Rb1 a1B Ra8 Rf8 h8R Nef5 b8Q Nh4 h7 Ne2 Rg8 Ba3 Qa4 d1N+ Kf1 B1b2 Be3 f2 h8Q Bc1 Bb7 Nb2 Qh6 Kd3 Qb4 Na4 Qg5 Bd2 Rh1 Bac1 Nf3 Qe8 Nh2 Qf7 Bc5 Bf4 Qb3+ Kd2 Bd4 Re8 Rg1 Re5 Rg3 Rc5 Rf3 Nf5 Kg2 Nh4+ Kh1 f1Q+ Bg1 Qh3 Bf2 Nec3 Kg1 Rc4 Bc5 Ba3 Rbf1 Bc1 Bd4 Nc5 Ra1 N5a4 Rb1 Ne2+ Kf2 Rc2 Bc5 Ng3 Bc6 Ng6 Re8 Ba6 c8R Be2 Rc3 Rd4 Rg8 Bg4 Rf3 Rcc4 Bb7 Qh8 Kg1 Nh4 Qd6 Rd5 Ra8 Rd3 Bf2 Be3 Nc8 Rdd4 Qde5 Rd6 Qef4 Bf5 Qfg4 Bf4 Qh3 Bg4 Ba7 Ngf5 Qg3 Nd4 Qf5 Qd5 Qh5 Qf7 Qg5 Ne2+
3qKRN1/3ppB1n/1bN2q2/rN1NrQ2/2n4R/n2B3p/2b1QP1N/Bk2q3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 a5 g4 h5 b4 a4 c4 d3 b6 d2 b7 a3 c5 a2 g5+ Kg7 c6 h3 g6 Kf6 c7 h4 b5 h2 b6 Ra5 g7 Ra4+ Bc4 Ra6 Nf3 Rh5 Na3 Nc6 b8N Ra5 b7 Na7 Qe2 d1N Bf7 Nb2 Nb5 Nc4 Nc6 Rg5 b8N Ba6 c8B Qc7+ Ke4 Bb7 Rb1 a1Q Na6 Qb2 Nb4 h3 Rd1 h1Q Rd4 Qa1 Bb2 Qe1 Nh2 Ba8 Ba6 Rh5 Nc3 Nb5 Nbd5+ Kg5 f6 Nba3 Nb5 Bb7 Kd3 Kf5 Rh4 Ba8 Kd4 Bb7 Kc5 Ba8 Be8 Bb7 f7 Nf6 g8N Bg7 Rc1 Nh7 f8Q+ Bf6 Bf7 Bh8 Bg7 Qf6 Bh6 Bg7 Bf4 Bh6 Be5 Bf4 Ba1 Rg5 Qb2 Ke4 Rc3 Re5 Rf3 Ne3 Qa2 Kd3 Qc4+ Kd2 Qf1 Kc1 Qe2 Bg5 Rf5 Kb1 Rff4 Qb8 Kb6 Qa7+ Kc7 Nec4 Rf3 Be3 Kd8 Bb6+ Ke8 Ba8 Qh6 Qb7 Qf4 Qc7 Qf5+ Re4 Qg4 Re3 Nca7 Qf5 Ndc3+ Kc1 Nd6 Bc6 Nd5 Nb2 Bg6 Ba4 Bd3 Nbc4 Ndb5 Re5 Nc6 Bc2 Qge4 Qe6 Rf8 Kb1 Bf7 Qf6 Qf5 Qd8+
n1QB1B1q/BpBB4/k1pr2R1/N4n2/n2P2pr/1QR3q1/3Q1q2/1K2bbN1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 a4 e5 d4 g5 Kd2 g3 Kc2 e4 f4 e3 d6 Kc6 f6 Kb6 f5 g4 h5 g2 a5+ Ka7 d7 e2 a6 e1Q h6 Qee8 h7 Qe6 f7 Qde7 d8B Nh6 f6 Bd7 Qd2 Nf5 Na3 b3+ Kb1 b2 Bb5 Qe5 Rh3 Qg3 Nc4 Qe8 Na5 Bb4 f8B Bc3 Ba4 Bb5 f7 Nd7 Bc5+ Nb6 f8B Bf1 Bd7 c6 Ra3 Qee5 Rh6 Qe8 Bc7 Rd8 Rg6 Bb4 Rc3 Qee5 B5d6 Na8 Bb8+ Kb6 a7 Ka6 Bdc7 Qf2 Qe1 Qh2 Bg5 Qh5 Qd2 Qh2 Ne2 g1Q Bh4 Qgg3 Ng1 Re8 Bhd8 Re6 Rg8 Rd6 Rg6 Rg8 h8Q Qhh3 Qg7 Rh8 Qg8 Rh4 Qb3 Qhh2 Kc2 b1N Kc1 Na3 Kb2 Nc4+ Kb1 Nb2 Kc1 Nb6 Kb1 N2a4 a8Q+ Kb5 Ba7 Ka6 Qc8 Na8 Rc1 Qhh3 Qde3 Be1 Qd2 Qe5 Rc2 Qhg3 Rc3 Qh8
1Q4B1/pNQbrq1n/3qQ3/1kp1K3/4n2r/Q2p1R1P/1r2QR1N/1N2Bqb1 w - - 0 1 illegal: No proof kernel
2r1r2r/p1N3Pk/nn6/q3Rbp1/QbQRBK2/2R2b1q/3N1Bp1/4RR1Q w - - 0 1 illegal: No possible last move, all moves rejected
Q2B1Rr1/N1rk1qN1/p5r1/1pR1bRR1/KN6/pn1bP3/BrQ3R1/4r2n w - - 0 1 illegal: No possible last move, all moves rejected
2b2br1/1bB2P1r/1p1RQNRq/1n2QQB1/1n1p4/3b1Q1b/2NpB1Q1/2k3K1 w - - 0 1 illegal: No proof kernel
2b5/B1kPr1n1/K2p1Q2/bn2B3/1N2Nr1p/1rB5/QBpR2Nr/R3q1rB w - - 0 1 illegal: No possible last move
b7/B2pB3/qr1K2N1/kN1PNR2/nNp4p/1b1NQQ2/r4b2/BbRnb3 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 c4 Bh6 cxb5 Bf8 b4 gxh4 b6 a6 b7 Nh6 b5 Ng8 b6 Nc6 Bc4 Nb8 Bb5 axb5 Ke2 h5 Ke3 c5 Ke4 e5 Kd5 e4 g4 h3 d4 e3 f4 b4 a4 h2 g5 b3 f6 b2 g6 c4 f7+ Ke7 a5 e2 g7 e1B f5 h4 a6 Rh7 a7 Rh8 Nf3 Bb4 Ne1 Nc6 b8B Ba3 b7 Nh6 g8Q Ng4 Nd2 b1B Rf1 h1B+ Ndf3 Na5 Bb2 Bc5 Nd3 Nf2 Qg3 Qb6 f6+ Kd8 Qg5 Ba2 Qe3 Qa6 Rc1 Rh6 Ba1 Nb3 Ke5 Bb4 d5 Bfc5 f8N Be1 f7 Rb6 Ng6 Bg2 Qde2 Nd1 f8B Bh3 Qg2 Bf5 Qgf2 Nd4 Qg3 Ne2 Qg2 Nec3 Be7+ Ke8 Qh3 Na4 Qh1 Bb3 Qg2 Rb4 Qgf2 Bb6 Kd6 Be4 Nfe5 Rb5 Nc5 Bb1 Qff3 Rb4 Ncd3 Rb5 Bc7 Rb4 b8N Bb7 Rf2 Bc6 Rf1 Bd4 Bb6 Rb5 Bc5 Rb6 Rf2 Bdc3 Rf1 Bf2 Bd4 Bce1 Bc5 Qa5 Na6 Qb5 Nab4 Qa6 Bf8 Kd8 Be7+ Kc8 Bcd4 Kb7 Bc5 Rf8 a8N Rf4 Nc7 Rd4 Ndf4 Rd2 Nfd3 Ra2 Nb5 Qa8 Nc2 Ka6 Ncb4+ Ka5 Bcd4 Qa6 Bc5 Rb7 Ba7 Rb6 Qfe2 Bg1 Rf5 Bgf2 Q2f3 Ba8+
1QBR3B/3K1N2/r1r2BQ1/k1p2Q2/1rp1bp2/2Qnbq1P/1n3N1b/1R2Q1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 g5 Ke4 f5+ Ke5 a5 d4 c5 b4 Kc7 e4 Kb6 d5 g4 h6 g3 h7 g2 d6 a4 d7 f3 Ke6 f2 e5 f4 Na3 Ra7 Nh3 g1B Qe1 Na6 Bb2 Bd6 Rb1 Kb7 b6 Nh6 Nb5 Be7 Nd6+ Kc6 b7 Kb6 b8B a3 b5 a2 Nf7 a1B Bd4 Rf8 h8Q Ng4 Be2 f1R Nf2 Bf6 h3 Ne3 Bg4 Nd1 Kd6 Bc3 e6 Bd2 e7 Bb7 e8Q Ka5 b6 Be4 b7 Bh4 Bf6 Nb4 Qg7 Qc8 d8Q+ Qc7+ Ke6 Nb2 Qd5 Bg3 Qf5 N4d3 Qgg6 Qd8 Bbe5 Qa8 b8Q Ra6+ Kd7 B3h2 Qb3 Rg8 Qeb8 Rc8 Bh8 Rcc6 Bef6 Rab6 Rd1 Rb4 Qc3 Be3 Ke7 Nc1 Rd8 Ncd3 Kd7 Bc1 Qd1 Be3 Qdd2 Rb1 Qe1 Ra1 Rg8 Rc8 Rd8 Bg2 Ke7 Ka6 Qb1 Qd5 Qe6+ Rc6 Qd7 Qh5 Qd5 Be4 Be6 Qf3 Qdf5 Ka5 Bd7 Ka4 Bc8 Ra3 Kd7 Ra2 Ng4 Bgf2 Rc1 Bfg1 Nf2 Ra3 Rd1 Ra2 Qbc1 Ra1 Q1d2 Ra3 Qe1 Ra2 Rb1 Ra1 Qa7+ Kb5 Qc7 Raa6 Qb8+ Ka5
k2N1r2/2R3Bn/bbrr1rp1/3bQN2/BQ5N/RnP3N1/p5pK/2QqN3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 b4 d5 f4 Kd7 Kf2 Kc7 Kg3 Kb7 c3 a5 h5 a4 f6 e4 h6 a3 h7 e3 f5 e2 f7 e1R f6 d3 b6 d2 b5 d4 Nf3 d3 Kh2 Re7 Ne1 Ra5 Rg1 Ka8 b7+ Ka7 b6+ Ka6 Be2 Nd7 b8Q Rae5 b7 R5e6 Qe5 Ka7 b8N Rb6 Nc6+ Ka8 Nd4 Ba6 Nf5 Rc6 Qc2 d1R Nd2 Nc5 Ne4 d2 Bb5 Ra7 Neg3 Nb3 Ba4 Bc5 f8N Bb6 f7 Nf6 Ne6 Rf8 h8N Nh7 Ng6 Rb7 Ngh4 g6 Rh1 Rd7 Rf1 Rdd6 Qb2 Qd7 Nd8 Rf6 Rf3 Qd5 Rd3 Qf3 Rd7 Qd3 Rc7 a2 Rb1 Re8 f8Q Qd7 Qb4 Ref8 Qc2 Qd3 Ba3 Qf1 Nh5 Qf3 Qc1 g3+ Kh3 g2+ Nhg3 Qh5 Kh2 Rfd6 Nc2 Rf1 Ne1 d1B Rb2 Bf3 Rb1 Nc5 Rb3 Bd5 Qb5 Rh8 Nd4 Rff6 Ndf5 Qd1 Bb4 Rg8 Ra3 Nb3 Qa5 Rd7 Bf8 Rh8 Qb4 Rdd6 Bg7 Rhf8
Q2r1rB1/Kn5B/bQ3p2/1p3Rnq/bb1rN1R1/4r1R1/P1k1Np2/2B3BB w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 d4 Kd6 g4 h5 e4 c5 g6 b5 e5+ Kd7 d6 Ke6 d7 Kd5 g7 Ke4 e6 c4 e7 b3 e8B f3 d5 c3 d6 h4 g5 c2 g6 b2 Bd3+ Kd4 Nc3 b1B Rh3 f6 Rg3 h3 Ne4 Nh6 g8B h2 g7 h1R Qd2 Nf7 Qa5 Qc7 d8Q Ba6 d7 Ng5 Qb6+ Qc5 Bef7 R1h4 Bd5 Nc6 Qdb8 Rh3 d8B R3h4 Q8b7 Rb8 Qa8 Na5 Rg4 Rh3 Bc7 R8h4 Bh2 Nb7 Rg3 Rd8 Ne2+ Ke5+ Be3 c1R Bg1 Rd1 Bc2 Rd4 Bc1 Kf5 Ke3 Bd6 Bd3 Bc2 Rb1 Bd1 Rb4 f2 Rc4 Qc7 Rc5 Ba4 Bb1 Qf7 Bc6+ Kg6 Rf5 Bb4 Bd3 Rf8 Bc2 Rd7 Bd5 Rdd8 Kd4 Nd6 Rg4 Re3 Bb7 Qe8 Kd5 Qe5+ Kc6 Qh2 Kc7 Qh1 Bc6 Nb7 N4c3 Rhh3 Re5+ Qe4 Bc4 Ref3 Rg2 Rh4 Rg3 Re3 B4b3 Rg4 Bbd5 Nh3 g8R+ Kh7 Bf7 Qf5 Bh1 Rgd4 R8g4 Qg6 Bce4 Ng5 Bg8+ Kg7 Rc5 Qh5 Beh7 Kh6 Qd6 Kg7 Kb6 Kh6 Ka7 Kg7 B7e4 Kh6 Qb6 Kg7 Bc6 Kg6 Bcd5 Kf5 Bh7+ Ke5 Bdg8+ R4d5 Nf4 Kd4 Ne4 R5d6 Ne2+ Kd3 Rd5+ Kc2 Rf5 Rd4
3r1Q1b/rQ1QRRN1/1n1p2p1/8/1PrBQK1b/8/kqp1nQBR/1N1b1b2 w - - 0 1 illegal: No proof kernel
QrN1Q1NB/1n2p1p1/2nQRP2/4n1q1/1b3rRr/QK1B1R1Q/2bk2p1/4n3 w - - 0 1 illegal: No proof kernel forced: wxDB
5N1n/1bBp1pb1/nb3PNr/2Q1NBB1/6B1/pBK2bR1/q3k3/RQn3r1 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 hxg4 a4 e5 axb5 exd4 Kd2 Ke7 f4 Ke6 c4 Kf5 h4 Ke4 f5 a5 h5 g5 f6 a4 c6 g3 h6 g2 c7 g4 h7 g3 b6 d3 c5 a3 c6 Be7 b7 Qf8 Kc3 d2 Nf3 Ke3 Rg1 Bc5 Nh4 Ra4 Ng6 Qg7 Nf8 Na6 b8B Kf2 e4 Ke3 e5 Nb4 e6 Nc2 e7 Nb4 e8Q+ Be7 Be2 Ba6 c8B Bb7 c7 Na6 Bg4 Re4 Bf5 Rg4 Qd8 Bd6 Qe7+ Kf2 Qb3 d1B Bg5 Bdf3 Nd2 Qh6 Qb2 Qh2 Qb1 Bf4 Qeb4 Ke2 Nc4 Ne7 Qc5 Ng6 Ne5 Bc1 Bh4 Bh6 Bg5 Ba8 Bb7 Bg7 Bd5 Bb7 Bc1 Rg5 c8B Rg4 Bc7 Rg5 Rf1 g1B Bb3 g2 Bd2 Rg4 Bg5 Bf2 Rd1 g1N Rd3 Qg2 Qc4 Bb6 Qc5 Rh4 Bg4 Rg8 h8N Rh6 Bf5 Nf4 Nhg6 Qh2 Nh4 Ng6 Bg4 Nh8 Nhg6 Qf2 Bf5 Bh1 Rh3 Bhf3 Rg3 Bbc6 Bg4 Qg2 Bc1 Kf1 Rh3 Bb5 Nf4 Bbc6 Bb7 Qa2 Bh5 Bce4 Bc6 Ke1 Bb5 Bb7 Bc6 Kf1 Be4 Ke1 Bf5 Ne2+ Kc4 Kf1 Bd2+ Nc1 Kc3 Rh7 Be3 Bh6 Bd2 Rg3 Bhg4 Rg1 N4g6 Ke2 Rg3 Bg7 Bg5 Rh6
2NBQr1k/KRP4n/6B1/r2Np3/Qp2n1pB/r2B2bN/2q1B1bb/R5b1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 h5 bxa5 c5 dxc5 hxg4 Ke2 Kf7 Ke3 b5 Kd4 d5 c4 g5 f4 Kg7 a4 e6 h4 e3 h5 g3 c6 g4 c7 b4 f5 e2 f6+ Kh7 f7 e1B h6 g2 c5 Ne7 a6 Bh4 c6 e5+ Kc5 d4 Kb6 d3 a5 d2 a7 Qd3 a6 Qg3 Qa4 d1R Nh3 Rd7 Be2 Bg5 Nc3 Bf4 Nd5 Bb7 c8N g1B+ Be3 Qg2 Bf2 Bg7 f8Q Bf6 Qe8 Rf8 c7 Kg8 h7+ Kh8 Ra3 B6g5 Ra2 Bgh2 Rha1 Ng6 Bh4 Bfg3 Bd3 Qc2 Ra3 Kg7 h8B+ Kg8 Bf6 Be3+ Ka5 Rd6 Bd8 Rc6 Kb5 Rc5+ Kb6 Beg1 Be2 Nc6 Bd3 Nce7 Be2 Rb8 a8B Nf5 a7 Nd6 R3a2 Bc6+ Bb7 Kh7 a8B Kh8 Ka7 Ne4 Bba6 Rb6 Bad3 Rbb5 Qa6 Ra5 Bb7 Ra3 Qa4 Rg8 Bba6 Nf8 Bac4 Nh7 Bb5 Nc3 Bg6 Rf8 Bbd3 Ne4 Rf1 Qb1 Rf6 Qc2 Ra1 Ba8 Rb6 Nd2 Nf6 Bg2 Nd5 Ne4 Rb7 Ra5+
1BK1k3/2P2R2/rR2B1pB/1bNN1r2/Q1Br1Bbp/3Qq3/4Q1pb/2b1nn2 w - - 0 1 illegal: No proof kernel
B1B2N1k/nNpr4/1bQpQn1p/1R2qrRK/1Q1PQ1Q1/1b2n3/3n2N1/4r3 w - - 0 1 legal: proof: e4 g5 b4 f5 exf5 b5 c4 g4 Ba3 g3 hxg3 a6 g4 bxc4 b5 a5 Bb4 axb4 g5 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 Kf7 Kf3 Kg7 Kg4 e5 f4 e4 a4 c3 d4 c2 b6 c1N f6+ Kf7 b7 e3 a5 h6 f5 d6 a6 b3 a7 b2 g6+ Ke8 f7+ Ke7 g7 Kf6 Ra5 e2 Qd3 e1R Nh3 Be7 Kh5 Qe8 g4 Nd7 b8Q Bd8 g5+ Ke7 g6 Kf6 Nf4 Rh7 Rg1 Re2 Nd2 b1N Nc4 Nb3 Bh3 Ne7 g8Q Na1 g7 Nc2 Rd5 Re6 Na5 Nc6 Qbb3 Re2 Nb7 Ne3 Rg2 Rf2 Rb5 Qe5 Qe8 Rf3 g8Q Rf1 Qg3 Be7 Bg4 Kg7 Qd5 Bh4 Q3e4 Rf2 Qh3 Rf3 Rg3 Rf1 Ng2 Rf2 Qc5 Rf4 Qe7 Kh8 Qc1 Rg7 Qg5 Rh7 f6 Rf2 Bf5 Rf3 Rg4 Be1 Qgf4 Bc3 Rg5 Ba5 Be6 Nd2 Qhf5 Rg3 Q4g4 Bb6 Qg6 Rf3 Bf5 Ne7 Qcc6 Rf1 Be6 Rb8 a8B Re1 Q6f5 Rg7 Qb1 Rh7 Qb4 Rg7 Qfc2 Rh7 Q6e4 Nc6 Bf5 Na7 Qcc6 Rg7 f8Q+ Rg8 Qe7 Rg7 f7 Rh7 f8N Rf7 Be6 Rf5 Bf7 Nf6+ Kh4 Be6 Qee8 Ng8 Kh5 Bb3 Be6 Rd8 Bc8 Rd7 Qe6 Nf6+
1n2KB2/3QQN1R/1bb1BRB1/1q4q1/1p1NBR1B/1p3np1/1rr1P3/n1nk4 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Ke7 Ke3 c5 Ke4 b5 h4 g5 a4 c4 d4 c3 d6+ Ke6 h5 g3 d7 c2 a5 f6 d5+ Ke7 Kf5 g2 Kg6 g4 h6 f5 e6 Kd6 Kf7 Kc5 d6 Kc4 a6 Kb3 a7 g3 h7 f4 e7 f3 e8B f2 Nf3 g1N Rh4 Nc6 Ra6 Nd4 Na3 Nf6 Bh3 f1Q Nc4 Bb7 Ba3 Rc8 a8B Bc6 Be6 Rc7 Qd2 c1N Rf4 Nc2 Bb7 Rg8 h8R Na1 Rh7 Rc8 Qe3+ Kc2 Nce5 Kd1 Nd4 Nf3 Qe4 Qb6 d8B Nd7 Bh4 Nb8 d7 Bc5 d8Q Qf2 Qf5 Qe3 Qe7 Qa5 Qg4 Bb6 Qg7 b3 Qd7 Rc7 Bf8 b4 Ke7 Qd5 Bg6 Qb5 Nf7 Qee5 Kd8 Qg5+ Qe7 Rd7+ Ke8 Rd5+ Qd7 Rc5 Qf6 Rc2 Qe7 Rb2 Ra5 Qa4 Raf5 Qb5 Rf6 Qg4 Be4 Rg5 Ba8 Rc5 Bg6 Rcc2 Bb7 Qgh5 Ba8 Qbg5 Bb7 Bb5 Bbe4 Bc6 Rg7 Qb5 Rh7 Qhg5
2NnK2R/q1R2Q2/3B2N1/r1Bb1p1R/1pR5/pP2rBnR/kbn4q/3Q2n1 w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 gxh5 Nc6 a5 Nb4 a6 Nxa6 cxd5 Nb4 Qc2 Na2 Qb3 Bf5 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 f5 e4+ Kb4 d4 b5 h6 g5 b3 c5 h5 a5 d6 g4 h7 f3 h6 a4 d5 f2 d7 a3 Ke6 g3 Kf7 g2 d6 c4 e5 c3 e6 c2 e7 Ra6 e8Q Ra5 Rh3 Ra6 Nc3 Qc7 Be2 f1Q Na4 Ne7 d8B Ra7 d7 Bb7 Nf3 g1N Bf4 c1N Nh4 Qf2 Nb6 Qh2 Bf3 Kc3 Ng6 Kb2 Nc8 Bg7 Bd6 Nce2 Rc1 Nc6 B8e7 Ng3 d8R Nab4 Rc4 Ka2 Rd7 Bb2 Qf8 Qb8 Ke8 Nd8 Rdc7 Bd5 Rh5 Rg8 h8R Nc2 h7 b4 Bc5 Rg7 Qf7 Ra5 Bed6 Qb7 Rg8 Qa7 h8R Rh7 Rh3 Rh4 Rh5 Rf4 Rgh8 Re4+ Qe6 Re3 Qe7 Ne6 Qf7 Nd8+
1k1B4/qr3b1R/2rp4/2Q1Bprn/1Q1BN1N1/2Bb1P1r/Rn2p1B1/1K2Qq2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 axb5 c5 h4 gxh4 e5 cxd4 Bd2 Bg7 Bc1 Bf6 exf6 Qb6 Ne2 Qc7 Ng1 Qd8 Kd2 a5 g4 h5 b4 e5 c4 h3 Kc2 a4 b6 d3+ Kb2 d2 c5 h2 b7 h4 b5 e4 b6 e3 c6 h3 c7 e2 g5 Na6 b8B Rh7 b7 Nb4 g6 Qe7 g7 Ra6 Qe1 d1R Bg2 Rc6 Nd2 a3+ Kb1 Nd3 Ra2 Nb2 Ba7 d6 b8B Kd7 f7 Nf6 g8Q Rh5 f8B Rg5 Bd4 Ba6 Ne4 Kc8 Qb3 Nh5 Bfg7 Bb5 Qbb4 Bd3+ Ka1 Rd2 Nf3 Rdc2 Bba7 R2c5 Bdf6 Rb5 Ne5 Rb7 Bd2 Qd7 Bc3 Qf7 Rf1 h1B Ng4 h2 Bd8 Qd7 Bge5 Qg7 Bh3 Bf3 Be3 h1R Bg2 Rh3 Rh1 Qe7 Be3d4 Qd7 Nd2 Bd5 f3 Bf7 Ne4 Nd1 Rc2 Nb2 Kb1 a2+ Kc1 Rbb6 Rd2 Kb7 c8Q+ Ka7 Qc7+ Ka8 Rh2 Rb7 Qca5+ Kb8 Qac5 Bb1 Rc2 a1Q Rd2 Qa7 Rh1 Bd3 Rc2 Qe8 Kb1 Qh8 Rh2 Nf4 Rh1 Qh4 Rh2 Qf2 Rh1 Qf1 Rh2 Rg3 Rh7 Nh5 Qc1 Na4 Qd1 Rh3 Qe1 Ba6 Ra2 Nb2 Rh8 Bb5 Rh7 Bd3+
1n1B1qQ1/k1q1R2N/2pr3P/1b1RNQrN/Nrpr1p2/1BN5/3B3b/2n1K3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Kd7 h4 g5 b4 f5 e4 a6 e5 g4 d5 g3 e6+ Kd6 b6 g2 b5 Kc5 e7 f3 e8N f4 h6 Bd6 b7 Kb6 h5 Be5 h7 Ra7 h6 Bd4 d6 Bd7 Nc3 Ne7 Qc2 Nec6 Ra5 Nb4 Qf5 Na2 Nh3 g1R Bd2 Rg5 Nf6 Bg1 Nh5 Nc1 Bg2 Be8 d7 Bh2 Rf1 Rf8 h8Q Rf6 Qg8 Rd6 Rf2 Qf6 d8B Qf8 Re2 Bc6 Re7 f2+ Kd1 Ra8 Bd5 Ka7 Be6 Na2 Bf7 f1R+ Ke2 Rf3 Ke1 Nc1 Be6 Rfd3 Bf7 Rg4 Ng5 R3d4 Nh7 Rg5 Be6 Bd7 Bd5 Nc6 b8N Be8 Nd7 Rb8 Re4 Rb6 Re7 Nb8 Nc5 Bc6 Ra2 Bd7 N5a4 a5 Be4 Bc6 Bc2 Rb7 Bb3 Bd7 Nc5 a4 Rc2 a3 N5a4 a2 b6+ Ka6 Rb2 a1Q Ra2 Bb5 Rc2 Ra7 b7 c6 Rb2 Ra8 Ra2 Ka7 Rc2 Nd7 b8N Qa3 Rb2 Qb4 Rb1 Qa5 Ra1 Qc7 Ra3 Nb6 Nd7 Rb8 Ne5 Nd7 Ra1 Na2 Rd1 Nc1 Be3 Rb6 Rd2 Nb8 Rd3 Re4 Rd5 Rd4 Bd2 Ba6 Ne2 Rb4 Nec3 Bb5
1bQ2rBk/3n1q1B/1p5q/1N1B2p1/3n1R2/Qrp1PbKR/1n1BR3/N1B3n1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 f5 h4 Kf7 d4 g5 a4 Kg7 a5 c5 a6 b6 e3 b3 e6 f4 e7 c4 e8B f3 d6 b2 h5 Qf6 d7 Ne7 d8Q Ng6 a7 Be7 d5 Qd6 h6+ Kh7 Qa4 Nf4 Qa3 Ng6 Bf7 Nf8 Ne2 Qb4 d6 Bb7 d7 Nc6 Nd4 Bd6 Qc8 Bb8 d8R Qd6 Nc3 b1N Nc2 Nd7 Rf8 Nd2 Nb5 Nd4 Ra2 Bd5 Na1 g3+ Kg1 g2 Kf2 g1N Rh3 Rg8 Bd3+ Kh8 h7 Qh6 Be6 Bc6 Rf4 Rf8 Kg3 f2 Bg8 f1Q Bb1 Bf3 Bf5 N2b3 Re2 Nbc5 Bd2 Nd3 Be4 Kg7 Bed5 Nb2 h8B+ Kg6 Bf6 c3 Be7 Kg7 Bh7 Qb1 Bdg8 Kh8 Bb4 Qa2 Bc5 Be5 Bd6 Qf7 Bc5 Rb8 a8B Bd6 Bd5 Ra8 Qa5 Be5 Ba3 Bb8 Qb4 Ra4 Qd6 Rb4 Qdc5 Nd3 Bac1 Rb3 Qa3 Nb2
k1bq1R2/6NR/1p2Q2q/r1p3p1/3KbnB1/N1N1Q3/1PNb1B2/R1bNn2r w - - 0 1 illegal: No possible last move, all moves rejected
R5Qn/1QB1kNQ1/P4p2/rbr2n2/1BBRnQqn/3N3p/3p1q2/2b2KQ1 w - - 0 1 illegal: No proof kernel
2Bk1b2/1bR1Nbb1/pB6/4B1q1/n1Pr1pq1/1N1n2BN/R1pK3r/1Q1B3Q w - - 0 1 illegal: No proof kernel
2Q4Q/b3N1q1/p5N1/n1n2r1Q/PpBb1qN1/3rN1R1/1k1pnB2/1Nn3RK w - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 h3 exd4 Nc3 g5 Ba3 g3 Nf3 g4 Rc1 g2 Ng1 b6 Ra1 g3 Nb1 Bb7 Bb2 Bf3 Bc1 Bg4 hxg4 Be7 Kd2 Bd6 Ke1 Bf8 e4 Ke7 a4 Ke6 c4 Ke5 f3 h5 g5 d5 c6 b5 c7 d3 c8Q Kd4 f4 h4 f5 b4 g6 d2+ Ke2 h3 Kf3 a6 e5 h2 c5 Nd7 f6 Qc7 e6 Rh3 g7 Ne7 g8N Nc6 e7 Bg7 e8Q Na5 c6 Nc5 f7 Qb7 Qde2 d1Q f8N Qd2 c7 Rh5 Nh3 g1B Kg2 Qf4 Ng6 Rf5 Qh5 Be5 Na3 Kc3 N8e7 Bed4 Be3 Kb2 Nb1 Bf2 Rg1 h1N Qeh8 Qa7 Qce8 Rd8 c8N Qac7 Bb5 Qce5 Nd6 Qg7 Ra3 Rd7 Bd2 Bfe3 Bf1 Nf2 Bc4 Nfd3 Nf2 Nc1 Ng4 Bf2 Qc8 Bfe3 Kh3 g2 Be1 Bf2 Rg3 Rd8 Rh1 g1N+ Kh2 Nge2 Rg1 Bde3 Nb5 d4 Qg8 d3 Nd4 d2 Nc2 Ne6 Kh1 Ba7 Qgh8 Bfe3 Bf2 Nc5 Ne1 Rd3 Nc2 Bd4 Nce3 Bf6 Bf7 Bc3 Bc4 Bd4
BQ1Q1Nk1/1K1b1p2/R5r1/NB1r1P2/1p1qpnr1/2n2Rb1/3qr1R1/1RR4Q w - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 h5 gxh5 dxe4 Ba3 Qd4 axb5 Qd6 b6 Qd4 b5 Qd8 Bb4 cxb4 Ke2 e5 Ke3 g5 c4 a5 d4 g4 h4 a4 f4 a3 c5 a2 c6 g3 h6 g2 c7 Bh3 c8B Be6 h5 Qd5 h7 Nc6 f5 Nd8 h6 Qd7 b7 Ra6 b8R Nf6 d5 Qa7+ b6 Nh5 d6 Ra5 d7+ Ke7 Nd2 Rg8 h8R Bc4 h7 Rg7 Rb1 a1R Nh3 g1R Rg8 Bd3 h8R R1a3 Bb7 R1g6 Nf4 Ne6 Nb3 Nc7 Ra8 Nb5 Ne6 Nf4 R8h3 Ra2 Rf3 Nc3 Bd5 Rc5 b7 Bb5 b8Q Kf6 Qc1 Bd6 Nf8 Rg4 Be2 R7g6 Na5 Qb6 Ra6 Qa7 Rgh8 Kg7 d8Q Bd7 R8h2 Kg8 Rg2 Rd2 Ba8 Rcd5+ Qdb6 Rb2 Qg1 Rbd2 Qh2 Bc7 Rhc1 Rb2 Qh1 Ra2 Kf2 e3+ Kf1 e4 Bb5 e2+ Kf2 Ne6 Ke3 Bg3 Qd8 Nf4 Qb8 Rc5 Kd4 e1Q Qf6 Re2 Qfd8 Rcc6+ Ke5 Rb6 Kd4 Qd2+ Kc5 Rbd6+ Qdb6 Be6 Qd8 Rd3 Kc6 Rd5 Qbb8 Qad4 Kb7 Bd7
rQ3rqq/B2nP1pb/2K1q1p1/1QRQ3n/2pQ4/R4N1B/1bk1B3/Q1N2q2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 e5 fxe5 b5 axb5 Bd6 g4 Bc5 g5 Bf8 g6 hxg6 Kf2 Ke7 Ke3 Ke6 Ke4 a5 h4 c5 d4 a4 b4 f6 h5 a3 h6 a2 d5+ Ke7 e6 Kd6 h7 c3 e7 c2 e8B c4 b6 Bg4 b7 Bd7 b5 Kc5 d6 Kb4 Kd5 Kb3 e4 f5 e5 f4 b6 f3 e6 f2 Nf3 Qh4 Nbd2+ Kc3 Nb3 Be7 Be2 f1Q Be3 c1Q Qd4+ Kc2 Rh3 Ba4 d7 Qfd1 d8Q Qh6 Rh5 Qe1 Bd7 Bf6 e7 Bc6+ Kc5 Qb1 Bh3 Bd5 Nc1 Nd7+ Kd6 Qf1 b8Q Qb3 Bg1 Qbe3 b7 Bf7 Rc5 Qe6+ Kc7 Qh5 Qd5 Bb2 Qa7 Qh6 b8Q Ngf6 Qb5 Rf8 h8Q Bg8 Kb7 Bh7 Qaa6 Qg4 Kc6 Nh5 Qdb8 Qf5 Qd4 Qe5 Qg8 Qee3 Qgd5 Qe4 Rb1 a1Q Bf2 Qa5 Ra1 Qd8 Ra3 Qe8 Rb3 Qf5 Qa1 Qff7 Ra3 Qg8 Bg3 Qe3 Bc7 Qh8 Bb6 Qf7 Ba7 Qfg8 Na2 Qe5 Nc1 Qee6+
3B1Nkr/n2rp1b1/4p1K1/B1B1RBq1/1p2b2P/3b4/1QbR2QN/Bqn2R2 w - - 0 1 illegal: No proof kernel
kbB2Nb1/3P2br/p2B1p1N/6Q1/4b1R1/B2qN1QK/NpR1Nq2/1n2rn2 w - - 0 1 illegal: No proof kernel
n2Nn1qB/3pQQ2/BnN5/1BNNb1p1/P3R1p1/qR2N1r1/2K4k/2r2bn1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Kd2 Kf7 c4 Kf6 h4 Ke5 a4 Kf4 h5 g5 c6 e5 f6 b5 h6 e4 f7 b3 c7 b2 c5 b4 c6 b3 h7 Na6 Ne2+ Kf3 Na3 b1Q Bb2 Bd6 f8N Ne7 Nc3+ Kf4 Qf3+ Ke5 Rh3 Nf5 Bb5 Qa2 Re1 Ng7 Ne6 Ne8 Nc2 Qa3 Qf7 e3+ Kc1 e2 Nc5 Bb7 c8B Nac7 Ne3 Ba6 f3 Rf8 h8N Ra7 Rg3 Na8 c7 Rb7 Qe7+ Kf4 Nf7 Be5 Kd2 Rb8 Bb7 Rh8 c8N Rh3 Na7 Rc8 Nc6 Rc7 Ba1 b2 Kc2 b1N Bb2 Qb8 Nfd8 Nd2 Bd3 Bb5 Ba6 Nc4 Ba1 Ncb6 Bb2 Bc4 Ba1 Bd5 Bdb5 Qc8 Ned1 Rb7 Bd3 Nc4 N3e4 Bb8 Nf7 Rb1 Nf6 Ncb6 Bdb5 Ng7 Bb2 Qg8 Nfd8 Bc4 Nd5+ Kf5 f4 Ne8 Bh8 Be5 Rb3 Ra1 Ncb7 Ke4 f5 Rg3 f6 Rc1+ Kd2 Bd3 f7 Kf3 f8Q+ Kg2 Qff7 Kh2 Nc5 Bc4 Rf1 e1N Rf4 Bf1 Re4 Bg7 N1e3 Be5 Be2 Nf3+ Kd3 Re1 Kc2 Ng1 Beb5 Rc1+
N2b4/1rp4p/2n1B1P1/qQnQqN1b/NR1Q1pQ1/1n4nr/5QKR/2k3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 Kd6 g4 Ke5 b4 Kd4 b6 a5 e5 f5 e6 f3 b7 f4 e7 a4 e8Q a3 b5 a2 b6 h3 d6 h2 d7 Bg7 g5 Be5 g6 Qf6 d8Q+ Bd7 Bc4 Ra7 Nc3 Qe6 Rb1 a1Q Nge2+ Kc5 d4+ Kc6 d5+ Kc5 d6 Ne7 Nd4 Na6 b8Q Qa5 b7 Nc6 Rb4 Bf6 Nf5 Qe5 Be6 Bh4+ Kf1 f2 Kg2 f1N Qg4 Nd2 Qa8 Bc8 b8N Nb3 d7 Rb7 Qf6 Bg5 d8Q Rf8 Qed7 Re8 Qd2 Bh4 Q8d3 Bg5 Qg7 Bd8 Qdd7 Re7 Qe8 Rd7 Qf2+ Rd4 Be3 Bd7 Rb1 h1N Rg1 Ng3 Rh1 Bc8 Rh2 Bd7 Qf1 Bc8 Bg1 Bd7 Qf2 Bc8 Ne3 Rd3 Nf5+ Re3 Re4 Bd7 Na4+ Kb5 Qf6 Nac5 Qfh8 Bc8 Nd7 Rc3 Ndb6 Rd3 Re2 Kb4 Re4+ Ka3 Rb4 Re3 Qff3 Ka2 Qf2+ Kb1 Qg7 Kc1 Qed7 Qd6 Qd4 Qe5 Q7d5 Rd3 Qa6 Bd7 Qb5 Bc8 Bf7 Be6 Na8 Re3 Q5e4 Bc4 Qed5 Be2 Be6 Rc3 Qh4 Bh5 Qg5 Nge4 Qgh4 Rh3 Qg4 Ng3
2BR4/npR2q2/b1B1B1P1/2pR1r2/4p2b/B3qnQr/N1K5/1r1BNkrQ w - - 0 1 illegal: No proof kernel
1Q6/pnp1NnBB/B4N2/qrB4R/4P1Bp/Q1Q3rb/2Kb2k1/1qR2n1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 Kd7 d4 Kd6 Kd2 Kd5 b4 Ke4 b6 f5 b5 h5 b7 c3+ Kc2 f3 g6 f4 d5 f2 d6 f3 b6 Rh6 g5 Rh7 d7 Bb4 g7 Qf8 d8B Qe7 g6 Qc5 Qd3+ Ke5 e4 Qc6 Be7 Qd7 Nh3 Nh6 g8B Nf7 g7 Na6 b8Q Qb5 b7 Qa5 Bh6 Nc5 Nf4 Bh3 Qf8 Rb8 Nd5 h4 Nf6 Rh8 Bh7 Rg8 Be2 f1N Bd1 f2 Bg4 Qb5 Ra5 Ng3 Rc1 f1N Qe3 Nh1 Qf3 Rc8 b8Q Nb7 Bc5 Rd8 Qd3 Rd5 Qc4 Qb6 Rb5 Qa5 Qb3 Rh8 g8B Rd3 Qa3 Rg3 Bg7 Kf4 Qfd8 Qb6 Qd3 Qa5 Kb3 c2 Nc3 Nfd8 Bd5 Nf7 Bc4 Re8 Qd4 Re5 Qd3 Re3 Kb2 Kg3 Ncd5 Bd2 Qdc3 Kg2 Ne7 Rg3 Bce2 Qa4 Ra5 Rf5 Ba6 Rh5 Rb5 Qa5 Rb1 c1Q+ Kb3 Qe1 Kc2 Qf2 Ra1 Qd4 Rc1 Qdb4 Rb6 Qbb5 Re6 Rd5 Re5 Qbb4 Rh5 Re5 Be3 Rb5 Bc5 Qb1+
1N3k2/4p2Q/n1r1q1p1/1bBK3N/5q1R/B1BBrpBQ/1nQ1P2r/2R2q1n w - - 0 1 legal: proof: f4 b5 d4 c5 a4 cxd4 axb5 g6 f5 Bg7 f6 h5 g4 hxg4 fxg7 Rh3 Na3 Rh5 Nb1 Rh8 Kd2 d5 Kd3 f5 b4 a5 h4 a4 c4 f4 b6 f3 h5 g3 h6 g2 h7 a3 b7 a2 b5 Qd7 c5 Qd8 c6 Bh3 b6 Be6 c7 Nc6 c8Q Nb8 Rh4 Nf6 Ba3 Ra6 Nc3 Ng4 Na4 Bd7 Rc1 a1Q Nh3 g1Q Nf4 Qh2 Nh5 Qf4 Nc5 Qa2 Bh3 Bb5+ Rc4 Qb1+ Qc2 Qf1 Nd7 Kf7 Bc5 Qdc7 Ba3 Qcd6 Bc5 Qe6 Ba3 Nf6 Bf5 Ne4 Bc5 Ng3 Ba3 Nc6 b8B Nh1 Bbd6 Nb8 b7 Rc6 Bdc5 Na6 b8B Qfe4+ Kd2 d3 Kc3 d2 Bg3 d1R Nb8 Qf4 Bd3 d4+ Kb3 Qd5 Qh3 Qe6 Bf5 d3 Be4 d2 Bd3 Rf8 h8B Ra1 Kc3 d1N+ Kb3 Ke8 g8Q Nb2 Qh7 Rf5 Bc3 Kf8 Bd2 Re5 Kc3 Qff7 Kd4 Re3 Bc3 Qf4+ Be4 Qc8 Qc1 Qd1+ Bd2 Nf2 Kd5 Qh1 Rc2 Qg1 Bc3 Qe6+ Kd4 Qh1 Qd2 Rg1 Rc1 Rg2 Qd1 Qf1 Qc2 Qff7 Bf5 Rh2 Bd3 Nh1 Qd2 Qc8 Qc2 Qf4+ Kd5 Qe6+
2k1Bq1N/5pQN/2r1pN1n/2B1q2p/2Qbq1nP/1Nq5/K2q4/RN2RrQ1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 f4 gxf4 Qf3 Bb7 Qd3 cxd4 Qd1 d3 Kd2 d4 Ke1 Bd5 exd5 Qd7 Ra5 Qc7 Ra1 Qd8 Kd2 e6 Ra2 Kd7 c4 a5 b4 h6 g4 f3 d6 a4 c5 f2 g5 a3 b6 Ra7 b7 Nf6 g6 Ng4 b5 Ne5 g7 Na6 g8Q Nc7 b8Q Ng6 b6 Ne7 b7 Ncd5 Nh3 Nf4 c6+ Ke8 c7 Kd7 c8N Ra6 Qg7 Nf5 Ng5 Ng2 Ne7 Nge3 Ng6 Ng4 h3 Rh7 Nh8 h5 h4 Rh6 Be2 f1Q Nh7 Qh3 Qe1 Rf6 Qc7+ Ke8 b8N Nfh6 Kd1 d2 Kc2 d3+ Kb3 d1Q+ Qc2 Qe3 Nd7 Qe5 Be3 d2 Bb5 Qf3 Qc4 Qfe4 Qf2 Qb8 Re1 Kd8 Qg1 Rf1 Ndf6 Qc8 d7 Bc5 Bd4 Kc7 Bf2 Qf8 d8N Kc8 Be8 Rc6 Nb7 Be3 Na5 d1Q+ Qc2 Qd2 Qc4 Bf4 Bc5 Be3 Rb2 a2 Ka3 a1Q+ Ra2 Rb6 Nb3 Qac3 Ra1 Rd6 Bc6 Bd4 Be8 Qdf4 Ka2 Rc6 Qg6 Qfe3 Qg7 Qed2+
1q3b1q/Rpk1qR2/2p1R1N1/2P3BB/1NQ2pQ1/KBR1qb1n/q1R3r1/2r5 w - - 0 1 legal: proof: d4 g5 g4 a5 f4 gxf4 h4 e5 dxe5 Qf6 b4 axb4 g5 Nc6 h5 Qd8 Qd4 Nce7 Qd1 Ng6 hxg6 Ra3 Nd2 Ra5 Nb1 Ra8 Kd2 d5 a4 Kd7 e4 f5 c4 h5 Kc2 c6 Kb2 b3 g7 f3 g6 d4 c5 h4 a5 d3 e6+ Kc7 e5 f2 a6 d2 a7 h3 e7 h2 e8R Be6 Nf3 Qd3 Re7+ Qd7 Ka3 b2 Rf7 Kd8 Nh4 Rb8 a8R Ne7 g8Q Bd5 g7 Ng6 e6 Qe7 Be2 f1Q Nc3 b1Q Ra7 Qe1 Ra2 Kc7 Bh5 Nf4 Rc2 Bf3 Na2 Nh3 Nb4 Qe3+ Rc3 Rh6 Ng6 Rd8 Rf1 h1Q Rf2 Rd3 Qa4 d1Q Rc2 Rd2 Qb5 Rg2 Qc4 Qde2 Bd2 Qe5 Bg5 Q2e3 Qg4 Qd6 Qc4 Qd8 Qg4 Qb8 Qc4 Qd7 e7 f4 e8R Qh2 Re6 Qe7 Qh8 Rh7 g8B Qhh1 Bg4 Rh4 Bh5 Rhg4 Qf6 Rg1 Qf5 R4g2 Qg4 Rc1 Ne5 Qhe1 Ng6 Qh4 Bh6 Qf6 Bg5 Qh8 Rd6 Bg7 Qd3 Be2 Rff6 Qh7 Bb3 Qhh8 Rde6 Bf3 Qc4 Bf8 Rf7 Qa2+
K1q2bNn/3Q3q/2Rr1B2/NBn3B1/ppR3r1/2Qn1pB1/P1n2N2/nB4k1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 h5 Qf3 hxg4 Qe2 Qd7 Qd1 Qd8 f3 e5 Kf2 e3+ Kg2 e2 Nc3 e4 Nb1 e3 Nh3 Bf5 Ng1 Be4 fxe4 Qg5 Qe1 Qf6 Qd1 Qd8 h4 Ke7 d4 Ke6 c4 e1Q e5 Kf5 c6 Kf4 h5 g5 e6 f5 c5 b5 d5 a5 h6 a4 h7 g3 c7 g4 c8B b4 c6 Nh6 c7 Nd7 e7 Ng8 e8N Ra6 d6 Nh6 Rh4 Nf7 Na3 Rg8 Nf6 Nh8 Bb5 Rg7 Bb2 e2 Nh3+ Ke3 Be5 f4 Ng8 Rg5 Qc2 Qb1 Qc6 Qg6 Rc1 Qh6 Bb7 Rg6 c8Q e1N+ Kh1 Qc7 Nc4+ Ke2 Nf2 Kf1 Qc5 Qh5 Be4 g2+ Kh2 g1N Bb1 f3 Kg3 Rc6 Kf4 g3 Ke4 g2 Kd5 Ne2 Na5 g1N Rc3 Qh6 Bg3 Nc2 Qe8 Na1 Qd4 Nb8 d7 Nh3 d8B Na6 Qd7 Kg1 Qd3 Rc4 Bg5 Nd4 Qd2 Ndc2 Rd4 Nf7 h8B Qh7 Qd3 Re6 Bhf6 Nh8 Rg4 Rce4 Rc5 Rf4 Qc3 Rc4 Re4 Rc6 Re6 Rg4 Rc4 Nc5 Rd6 Ra6 Rb6 Qb8 Kc6 Nf4 Bh6 Nfd3 Bhg5 Qe8 Kc7 Qe5+ Rd6 Qf4 Kb8 Rc6 Ka8 Qe5 Re6 Qc7 Re8 Re6 Rb8 Rc6 Rb6 Rd6 Rc6 Qc8+
3rB3/2pqBRK1/pnQ1r1NQ/2q1Rq1b/NB2qR2/2Rp2R1/P7/k1n1q3 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Bh6 Be3 fxg4 Bc1 g3 Bf4 g4 Bc1 Bg5 hxg5 Bb7 Qb3 Ba6 Qd1 Bc8 Kd2 Ke7 Ke3 Ke6 Kd4 d5 b4 h5 e4 g2 f4 g3 f5+ Ke7 f6+ Ke6 f7 h4 f8B c3 b5 h3 b6 c2 g6 a6 g7 h2 b7 Qf6 Nh3 Qg6 Bg5 c1Q Nf4+ Kd7 e6+ Kc6 Ke5 g1Q e7 Kc5 e8Q+ Ne7 g8R Kb4 Nc3 Ka3 Qd2 g2 Na4 d4 Qc6 Bg4 Bb5 Qgd1 Rf1 h1Q Rb1 g1Q Rb4 Qgh7 Kf6 Ng6 e5 Bh5 e6 Qc5 e7 Ne5 e8R Qf5+ Kg7 Nbd7 b8R Qhe4 Ng6 Rh6 Bge7 Nd3 Rf4 Qgh1 Rc4 Qhe1 Qh2 Nb6 Rc3+ Qb3 Rbd8 Nc1 Rd7 d3 Qh4 Rb8 Qg5 Rh8 Qh6 Rd8 Rd5 Rd6 Re5 Re6 Rd8 Kb4 Rd7 Qd5 Bd8 Qdd4 Rf7 Qdd6 Bde7 Qd7 Qb7 Qc8 Be8 Qd7 Rc4+ Ka3 Qc6 Qh4 Nc3 Kb2 Na4+ Ka1 Rc3 Qcd5 Bb4 Qc5 Be7 Qhf2 Rf3 Qfe3 Rg3 Qe1 Rgf8 Qh3 Rf4 Qhf5 Rf7 Qdd4 Bd7 Rd8 Be8 Qd7
4q1RN/p1pnp2q/B3qN1q/2n1N2Q/rq1N1K1b/2R1Q2r/2NQP2k/B7 w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 f5 h3 fxg4 Na3 g3 Nb1 g2 Nc3 g5 Nb1 g4 Ra2 g3 Ra1 Bg4 hxg4 Qd5 Qc2 Qd4 Qd1 Qd8 b4 Kd7 d4 Kd6 Kd2 h5 Ke3 h4 f4 c3 d5 c2 g5 h3 b6 h2 b7 Rh7 g6 Bh6 b5 Qc8 b6 Bf8 g7 Qf5 Qd3 Qg4 f5 Ke5 d6 Qc4 f6 Qf7 d7 Rh3 d8Q Qe8 f7 Nf6 g8N Rh5 Ra3 Ne4 Nf3+ Kf5 Nf6 Rh4 Bb2 Qb5 Rg1 h1Q Ba1 Qc6 Q8d6 Nd7 b8N Qh2 Rc3 c1Q+ Nbd2 Qa3 Nb1 Qc4 b7 Qe6 Ne5 Bh6+ Kf3 Bg5 Nbc6 Rah8 f8N R8h7 Qe3 Qa5 Rc1 Nec5 Nfg6 Ra4 Nh8 Qb4 Rc3 Rh5 Qdd2 Qhh4 Rh1 g1Q Bg2 Qgh2 Na3 Rh7 Rg1 Qh5+ Neg4 Qe8 Nc2 Qhh5 Bh1 g2 Kg3 Qhg6 Nge5 Rh6 Kf3 Qh7 Kg3 Bf4+ Kf3 Kg5 N6d4 Kh4 Ne4 Bg3 Nf6 Be1 Kf4 Bf2 Nf3+ Kh3 b8Q Nb3 Qb7 Nbc5 Qd5 Rh4+ Ng4 Rh5 Qg5 Qeh6 Nf6 Be1 Ne5+ Kh2 Rf1 g1Q Bb7 Bf2 Ba6 Rh3 Rd1 Bh4 Rb1 Qhf8 Qh5 Qgg8 Rg1 Qe6 Rg8 Qfh6+
2R1qb2/2KBb1pb/1r1N1pQ1/1R1Nbnp1/1NrQ2P1/Bq5N/5RN1/1k2q3 w - - 0 1 illegal: No possible last move, all moves rejected
b2k4/B4Q1r/N1p2r1r/4qB2/RbNB2p1/qNprQ1N1/2P4R/n2K1bN1 w - - 0 1 illegal: No possible last move
B2Rn2B/1qN1bB1R/3Q4/p1K2r2/3qkn2/pp1Nn3/P1B2r1Q/B1nN1r2 w - - 0 1 illegal: No possible last move
q1R1q1q1/7p/kr3BbQ/r2RN2P/1B1Q1np1/Kn2qBN1/p1B2n2/1B5N w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 h4 a5 b4 g5 c4 d5 Kc2 Kd7 Kb3 Kc7 e4 Kb6 f5 d3 e5 g4 e6 d2 h5 d4 e7 a4+ Ka3 d3 e8B Qc7 c5+ Kb7 b6 Qg3 c6+ Ka6 b5+ Ka5 f6 Qh4 f7 Nd7 f8B Qg3 b7 Ndf6 b8N Bf5 c7 Ne4 c8B Nh6 b6 Bg6 b7 Nf5 Bb2 Nf6 Ne2 Nd4 Nc6+ Ka6 Bf5 Nd5 b8Q Nf4 Nbc3 Nb3 Bg2 f1Q Rc1 f2 Ne4 Qe3 Bf3 Qg2 Qd6 f1Q N2g3 Qfe2 Nf2 Rb8 Ne5+ Rb6 Qg1 d1Q Rc8 d2 Bc2 Qb5 Bf7 Qe8 Qe6 Qdf1 Bb4 d1N Rh2 Qfe1 Nfh1 Nf2 Qd6 Qg8 Bd4 Bd3 Qh6 Bg6 Be6 Q1e2 Bef5 Qb5 Bb1 Qd7 Bfc2 Qde8 Bfd1 Qa8 Bf3 N2d3 Rd2 Nf2 Ka2 a3 Ba1 Qgf7 Rd5 Rf8 Qd1 Qg8 Qd4 Rf5 Be7 Rb5 Bf6 Rb4 Bc3 Rb6 Bb4 Na5 Ka1 a2 Kb2 Nb3 Ka3 Rb5 Bh4 Rf6 Bg5 Rfb6 Bf6 Ra5+
1KqB1b2/3k1pR1/qpqnbr1p/B2N1q1Q/1r1NRPN1/2B4Q/2B5/Br6 w - - 0 1 illegal: No possible last move
rQ2r2n/1R2Rp2/2p3k1/2Pb1Rr1/2B3Q1/R1N3BR/pQrNr3/K1n1qr2 w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ng8 d4 a5 Kd2 h5 Kc3 e5 b4 h4 Kb2 a4 c4 c6 g7 f3 g6 e3 b6 f2 b7 h3 d5 e4 b5 e2 c5 e1R d6 h2 d7+ Ke7 b6 Kf6 Ra3 e3 Bc4 f1R Nd2 e2 Qc2 Ne7 g8R Rh5 g7 Na6 b8Q Qe8 d8R Be6 b7 Bd5 Ka1 Ng6 Rh8 Rg5 g8Q Nb4 Rd7 Na2 Rhh3 Nh8 Qb2+ Qe5 Qgc8 Kg6 Re7 Rf2 Qg4 Ref1 Qgc8 e1R Qg4 Rfe2 Rhf3 Qg3 Rf5 Rff2 Nb3 Rc2 Ne2 Rff1 Nc3 Ree2 Nd2 Qe1 Rg1 h1R Rg3 Rh7 Rh3 Rh4 Qe8 Rh7 b8R Rg7 Rbb3 Rg8 Qb8 Re8 Rbb7 Ref2 Ndb1 Rfe2 Bf4 Nc1 Bc7 Qg3 Nd2 Qe1 Rab3 a3 Bg3 a2 Ra3 Rh2 Rbd7 Rhf2 Rb7 Re2
BN3r1n/5pnK/R1n2n1R/p4n1Q/4RQ1b/P6R/rq3p2/knR2NBQ w - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 f4 c5 bxc5 gxf4 h3 Bf5 g5 Bg4 hxg4 Bg7 Bh3 Bh6 Bf1 Bf8 Kf2 Kd7 d4 Kc6 c4 b5 g6 e5 g5 h5 d5+ Kd7 d6 Ke6 d7 b4 c6 e3+ Kf3 h4 Kg4 a6 g7 e2 c7 e1N c8Q b3 g6 h3 c5 b2 c6 e4 c7 Ke5 Be3 h2 Bg2 f3 Qb7 Nf6+ Kg5 Be7 g8R Nd3 c8R Qb6 d8Q Nc5 g7 Nc6 Nd2 b1N Ne2 Qb2 Bg1 e3 Nd4 e2 Nf1 e1N Re8 Ned3 g8R Nf4 Rg6 Rf8 Kh6 Nce6 Qdc7+ Ke4 Rg3 Ng6 Rh3 Nh8 Qf4+ Kd5 Rc7 Kc4 Qb5+ Kc3 Qh5 Ng7 a3 a5 Ra7 Rb8 Ra6 Bd8 Re4 Rb5 Ne6 Rd5 Nc5 Rd2 Nd7 Re2 Bc5 Be7 Nb8 Rf2 Rg1 h1N Bb6 Ng3 Rgh1 Rd2 Bg1 f2 R1h2 Nfe8 Kh7 Bh4 Bf3 N3f5 Rh1 Qc1 R1h2 Ra2 Rh1 Qb2 Qe1+ Nd2 Rc1+ Kb3 R1h2 Nb1 Ra4 Nd8 Qee4 Qf6 Qg6 Kb2 Rg3 Bg5 Rh6 Qc3 Rgh3 Bh4 Qh5 Ka1 Bh1 Qb2 Qg2 Bg3 Qh2 Bh4 Ba8 Nc6 Re4 Qc3 Qg2 Qb2 Qh1 Nf6+
k4NR1/1bQ3K1/B3Rb2/1n2QQp1/p1n1rb2/7n/1RNpPRp1/1qB2Rr1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kf2 a5 Kg3 d5 Kf4 Kd7 Kf5 Kc6+ e6 Kb7 c4 g5 h4 f6 Kg6 a3 b4 f5 e7 g3 e8R d4 h5 a4 h6 d3 h7 f4 b5 f3 c6+ Ka7 c7 d2 c5 f2 c6 a2 b6+ Ka6 b7 Ka7 Nh3 Bh6 Rh2 Na6 b8R Bf8 Nf4 Nh6 Bg2 f1N Rb2 Bd6 Ne6 Bb7 c8R Bf4 c7 Qd3+ Kg7 Ne3 Qc2 Nc4 Nf8 Ng4 Na3 Nf2 Re6 Nh3 Be4 Rb8 Rf2 g2 Rab1 Qb3 Bd3 a1B Rd8 Ka8 c8Q Qb4 Qc5 Rc8 Qf5 Nc7 Qc3 Qb3 Nc2 Nb5 Qce5 Qb4 Qc7 Rg8+ Kh6 Rg7 h8Q Re7 Qhe5 Re8 Nh7 Re7 Rg8 Qb3 Nf8 Qb4 Ra2 Bc3 Rba1 Qb1 Rb2 Bd4 Qd5 Bf6 Qde5 Rd7 Kg6 Rd4 Kh7 Re4 Kh6 Be7 Kg7 Bf6+ Kg6 Nbd6 Nb4 Rd4 Qg7 Na3 Ba6 Rc3 Qc7 Rf3 Nc2 Ndb5 Kh6 Qa2 Rab1 Be7 Kg7 Nc4 Ra1 Re4 Rab1 Ng1 Ra1 Rh3 Rb4 Rh1 Ba3 Nh3 Raf1 Rg1 Bc1 Qb1 Rb2 Bf6+
2b1NN2/kBB2qpQ/5Nr1/4bQpp/1Rn1n2n/N5Nr/3RpP2/Rr3K2 w - - 0 1 illegal: No possible last move
2Q5/2R2pp1/NB4bq/pB2rnBk/1BR1P3/Q1bpB3/2R1Nbn1/nK4r1 w - - 0 1 illegal: No proof kernel
kb3NQQ/3pPrR1/4R1N1/6p1/1Bb1rp1Q/3pR2B/nn2QQq1/1Kr4n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 c4 g5 Kc2 a5 h4 f3 e4 a4 b4 f4 c5 a3 e5 a2 b6 f2 h6 Na6 c6 Qc7 h5 Kd8 b7 Qb6 b8R Kc7 h7 Bb7 e6 Qc5+ Nc3 Ne7 h6 Nc8 e7 Rg8 h8Q Qb5 h7 Ra7 Rh6 Qc4 b5 Qf7 Ne4 Nd6 Nf3 Rg6 Nf6 Bc8 Ba3 Rg7 Bh3 f1N Nh4 Qd5 Qe2 Rb7 Ng6 Qg2 Re1 a1R Bb4 d3+ Kb2 Ra4 Kb1 Nc4 Ra8 Kb6 c7 Ng3 Qg8 Nb2 h8Q Rf7 Nh7 Bg7 Nhf8 Ra7 Qgh7 Kb7 b6 Bc3 Qf2 Bf6 Re3 Nh1 Qe2 Be5 Rb8+ Kc6 b7 Kb6 Q8g8 Ra8 Qhh8 Ka7 Rh7 Bd6 Rg7 Be5 Qh4 Bd6 Bd2 Nb4 Qef2 Na2 Bb4 Ra5 Qe2 Re5 Qhf2 Re4 Qh7 Kb6 Qhh4 Ra3 Ra8 Rc3 b8Q+ Kc6 Ra3 Ba6 c8Q+ Bc7 Ra5 Bc4 Re5 Rc2 Qe8 Bd6 Qbd8 Kb7 Re6 Bb8 Qc8+ Ka8 Qcd8 Rf6 Qf7 Rf5 Qg8 Rf7 Qe8 Rc3 Qgh8 Rf6 Qf7 Rc2 Qfg8 Rf7 Q4h6 Rc3 Qhh4 Rc1+
1Q5R/2BN1b2/KnNR4/RB1R1RQ1/3b2rr/1pPp1Qpp/1qq3n1/3nk3 w - - 0 1 illegal: No proof kernel
3NRq1R/3k4/Bpbq3p/KB2pq1R/bQ3N1P/B1Rp1R2/nr1n1Q2/6r1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 g4 f5 gxf5 a5 f4 e6 b4 Be7 e5 Bf6 exf6 axb4 Kd2 d5 c4 g5 a4 h6 f7+ Kd7 f8R g4 f6 e5 f5 g3 f7 g2 a5 b3 f6 d3 Kc3 d4+ Kb4 d2 a6 b2 a7 Rh7 c5 Ne7 c6+ Kc7 Ra3 Bd7 Rh8 Bf5 f8R Qe8 f7 Be4 Qg4 d1Q Rc3 Ng6 Nd2 b1B Ne2 g1Q Nf3 Qf2 Ka5 Rg7 Nf4 Na6 Ng5 Nb4 Ba6 Na2 Ba3 Nh4 Nge6+ Kc8 c7 Kd7 h3 Bbc2 Nd8+ Qe6 Re8 Ba4 f8Q Bec6 Qff5 Rc8 a8R Nf3 Qc2 Qff1 Qf2 Qf5 Ra7 Nd2 Qgh4 Ra8 c8B+ Kc7 Rh2 Rg1 Bd7 Qf8 Rh1 Qd3 Qe7 Qdf5 Qb4 Rc8 Be6 Ra8 Bec4 Kd7 Bcb5 d3 Rh2 Qd6 Rhf8 Rc8 Ra8 Qb3 Rf6 Qf7 Rh8 Qff8 Rb8 Qfe6 Rf5 Qef7 h4 Qff6 Rh5 Qf5 Rh3 Rb1 Rf3 Rb2 Nf7 Re8 Rc8 Re6 Re8 Rg6 Nd8 Rg3 Kb6 Rg1 Ka5 b6+
b3kN1B/2Q4p/2R1KprQ/R1P5/1B1bB1pp/3Q2Bn/3N3b/1qB1qn1r w - - 0 1 illegal: Other
3B2k1/N1KpQpNb/1nNB1BNp/8/7P/4rq1q/p2r2nb/1RRn2NQ w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 c5 axb5 g6 d4 cxd4 e3 Bd6 Bd3 Bf8 Bf5 gxf5 Kd2 a5 Kd3 h6 Kc4 f4 Kd5 d3 g4 a4 b4 a3 c4 f3 h4 f2 b6 f1Q b7 d2 c5 a2 c6 Qf3+ e4 Bd6 e6 Kf8 c7 Qa3 e7+ Kg7 e8N+ Kf8 e5 Qa7 g5 Qa4 e6 Bc5 b5 Qe7 b6 Bf2 g6 Qeb4 g7+ Ke7 Na3 Qc2 Nc4 Ra3 Na5 Qcc3 Rb1 Qf4 Bb2 Nc6 b8B Na7 b7 Qh3 Bd4 Rh7 Kc5 Rf3 Kb6 Nf6 g8N+ Kf8 Ne7 Rg7 Nac6 Bg3 Ng6+ Kg8 e7 Nh5 Bf6 Re3 Qf1 d1N Qf3 Rh7 Ng7 Bh2 Qg2 Rh8 Qd5 Qff3 e8Q+ Kh7 Qee6 Rg8 Qe7 Nf4 Qde4 Ng2 Rc1 Nb5 Ba7 Nbc3 b8B Bb7 c8N Ba6 Bd6 Bd3 Kc7 Na4 Bb6 Re8 N8a7 Kg8 Kb7 Bb1 Bd8 Nb6 Kc7 Rd3 Qd5 Rd2 Ne2 Nge3 Qee6 Ng4 Nh8 Nde3 Rcf1 Bh7 Rb1 Qfg2 Ng6 Nf2 Rhc1 Nfd1 Ng1 Qgg4 Qh1 Qgf3 Qe4 Ng2 Qe2 Re3 Qe1 Ra3 Qe7 Re3
n1QR2r1/1Qp2RN1/q1N1KQBk/qp5p/n1P2R2/5n2/1r2b1pB/b1QQ4 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 axb4 h4 f5 hxg5 fxg4 Kd2 Kf7 Kd3 Kg6 Kd4 h5 Kd5 b5 e4 g3 c4 g2 f4 b3 a4 b2 a5 d6 e6 Nc6 a6 Kg7 a7 Qd7 e7 Qd8 e8R Bd7 g6 Kh6 g7 Bc8 f5+ Kh7 e5 Bb7 f6 Nce7+ Ke6 d5 f7 d4 Nc3 b1N Nf3 d3 Nh4 d2 Ne2 Ba6 Nf5 Nc3 Ned4 Bb7 Bd3 Bf3 Nc6 Qd4 Rd8 Nf6 Rh4 Rg8 Rf4 Ned5 Ba3 Qb6 Bd6 Be7 f8Q Nd7 Qf6 Qa5 Qc1 d1Q Bc2 Rc8 a8Q Be2 Qb7 Ra8 Ra3 Na4 Raf3 Qh1 Qe3 Nac3 Rg4 Nb4 Qfg5 Rh8 Kf7 Qa7 e6 Nb6 Bh2 Bf6 e7 Qe1 Qd3 Re8 Qd1 Nd3 Qgc1 Ne5+ Ke6 Qa1 Rgd4 Ra2 Rf1 Kg6 g8Q+ Bg7 Qh8 Rg8 Rff4 Nf3 R4d7 Na8 Be4 Bd4 Qf6+ Kh7 Bb1 Rc2 Ng7 Qa6 e8Q Be5 Rc8 Na4 Rf7 Ba1 Qed7 Qea5 Rd8 Nd2 Qdc8 Nf3 Qfb2 Kh6 Qc3 Rb2 Bg6 Nd2 Qf6 Nf3
q1q2R2/nprr2kn/2p1Q3/RNPR4/b2b1p1N/B5pK/1N3QB1/N2nN3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 g5 fxg5 e5 dxe5 hxg4 Kf2 f5 Kg3 Kf7 h4 d5 e4 b3 c4 b2 a4 c6 g6+ Kg7 h5 d4 c5 d3 e6 d2 e5 Qd7 e7 Ra7 e8N+ Kh6 e6 Qe7 g7 Kh7 h6 Qd8 a5 Bd7 e7 Qc7+ Nd6 Bc8 e8N Nf6 a6 Qe7 Nb5 Nbd7 Qf3 d1Q Ned6 Nb6 Ra5 Qc7 Bg2 Ra8 a7 Qa4 Qf2 Be6 N1a3 b1N Nc2 Nc3 Na1 Rd8 a8R Nc8 Rh5 Rd7 Ba3 Na7 Nf3 Bb3 Ne1 Qc8 Nc4 Nd1 Nb2 f4+ Kh2 g3+ Kh3 Kg8 Rd5 Nh7 Rb8 Kf7 g8Q+ Kf6 Qg4 Bg7 Ra8 Kf7 Qe6+ Kf8 Rb8 Bd4 Ra8 Rg8 Rb8 Rgg7 Ra8 Nf6 h7 Rge7 h8N Kg7 Ng6 Nh7 Ra6 Qa5 Nh4 Ba4 Rb8 Qcc7 Re8 Qc8 Rf8 Qad8 Ra5 Qa8 Rh8 Qdc8 Re8 Rc7 Rf8 Red7
4B2B/2b5/b2R2BP/2p3Bn/1B4kr/1p1rRN1b/NqppQR1Q/2bn3K w - - 0 1 illegal: No proof kernel
1nR1N2r/3r3B/3pQbQ1/q3Q2b/1p4Q1/4PK2/2ppRRbB/nk3bQN w - - 0 1 illegal: No proof kernel
QbRbQ1n1/5B1P/N1B3pk/3rK3/BQ2b1Br/2BRp2p/3pn1N1/b4q2 w - - 0 1 illegal: No proof kernel
k2b1q2/7p/pRR3b1/1QN1B3/rpBb4/1nBP2np/B1R3Bb/1rQ1K2N w - - 0 1 illegal: No proof kernel
4N3/r1R2bP1/1BRQ1pB1/1r3n1R/1qp1k1BK/b3pRQn/1p5r/4N1Rr w - - 0 1 illegal: No possible last move, all moves rejected
k6N/2r1N1pQ/p4Q2/2Qn1R1p/5Nq1/1BPQ1n1R/b1K1pn1b/2Q1Bn1r w - - 0 1 illegal: No proof kernel
3nB1b1/B2p3r/NK1bpQBk/1b1P2rB/1R3BQ1/1pN2q2/2Rp1Q2/1n2b3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 Nc6 d5 Nb8 Qd4 cxd4 Ke2 Kf7 Kd3 g5 Kc4 Kg7 Kb5 e6 h4 b6 a4 d3 f4 b3 c4 b2 c5 g4 a5 g3 f6+ Kh6 f5+ Kh7 a6 g2 a7 Be7 f7 Bb7 f8Q Nc6 f6 Nh6 f7 Nb4 c6 Nc2 c7 Qc8 Be2 Ng8 h6 Bc5 h5 Ne3 Ra4 Qb8 c8B Qc7 Nd2 b1B Nb3 Qe5 Rh2 Ng4 Rb4 Bd6 Bf4 Bb8 Nc5 N4f6 Na6 Bc7 Bf3 Qe3 Ne2 g1B Nc3 Ne7 Rc2 Rb8 a8B d2 Qd8 Nc6 f8Q Ng8 Qh4 Bh2 Qg4 Nf6 Qc5 Qe4 Qf2 Bg3 Bd1 Rg8 Be2 Bd6 Bf3 Kh8 h7 Rg5 Be2 Kg7 h8B+ Kh7 h6 Qf3 Bg7 Kg6 h7 Ne4 h8Q Nd8 Bd4 Bh4 Qe5 Kh7 Qf6 Bc6+ Kc4 Ba4 Bc6 Ra8 Bc5 b5+ Kd4 Rb8 Ba7 Bg3 Rb3 b4 Bcb5 Bh4 Bbd3 Bb5 Bd1 Nf7 Bb7 Rh8 B3e2 Nd8 Bc6 Ba4 Bcb5 Bg3 Bbd3 Bb5 Ra3 b3 Ra4 Bh4 Rb4 Bg3 Qf7+ Kh6 Qe7 Nf6 Bg6 Ne4 Be8 Rh7 Bd3 Nf6 Bdg6 Ne4 Qf6 Bh4 Qe3 Be1 Qf2 Bc7 Na4 Nc3 Kc5 Bb8 Kb6 Bd6 Rb2 Be4 Rc2 Nb1 Nc3 Bed3 Be2 Be4 Bd3 Bf5 Bh5+ Bg6 Q6d4 Bf7 Bdg6 Bg8 Qe5 Bf1 Qf6 Bb5
3R4/pRBb2pR/N3N1pQ/r2p1QbR/2r2bK1/n6b/B2P1Qnk/2q2R2 w - - 0 1 illegal: No possible last move
RrN2rn1/BbKp1B1N/kpp2b2/2R1b2Q/r3B3/2B2Qp1/BP2n3/3R3n w - - 0 1 illegal: No proof kernel
3NQB2/Np1q2n1/QBn1BbRK/3R1p2/1p3P2/n1p4n/b4brN/k3B2B w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 h4 gxh4 e4 Bf5 e5 Bc8 d6 Bh6 d5 Kf8 Rh2 Kg7 Rh1 Ra6 d7 Rd6 exd6 Kf6 Qg4 Bg7 Qd1 Bf8 Ke2 Ke5 Ke3 h5 g4 f5 a4 c5 g5 h3 g6 h4 a5 h2 a6 e6 g7 h3 a7 c4 a8Q Na6 Qd3 Nc7 Na3 Nb5 Bg2 Be7 Bd2 Bf6 Be1 Ne7 g8B Nc6 Rd1 c3 Bf7 Rg8 f3 Qe8 d8B Qd7 Be7 Rg7 Bf8 Rg8 Nc2 Na3 Qda6 Rg6 Nd4 Rg4 Nb5 Rg7 Bf1 Rg2 Kd3 Kf4 Na7 e5 Qb8 Rb2 Rd2 e4+ Ke2 Ke5 Bg2 e3 Be6 Ra2 Kd3 e2 Ke3 Rb2 Rd4 Ra2 Rg4 Rb2 Rg6 Rd2 Kf2 Kd4 Kg3 Ra2 Kf4 Rc2 Qb6+ Kc4 Qa6+ Kb3 Qa8 Ka2 Qb8 Qe7 d7 Ka1 d8B Qd7 d6 Rb2 Bb6 Ra2 Bd2 e1B Qa8 Bf2 Be1 B6d4 Kg5 Bf6+ Kh6 Rc2 Ne2 Rd2 Rf1 h1N f4 h2 Ng1 Ng3 Nf3 h1N Nh2 Nh5 Be4 Ng7 Rfg1 Ng3 Bh1 Ne2 R1g3 Rc2 Rd3 Ng1 Rd5 Nh3 Qb8 Bc5 Qa8 Rg2 Qb8 Bf2 Qa8 Qe8 d7 Qf7 d8N Bd7 Bbc5 Be8 Bb6 Qd7 Rg3 Bh5 Rg6 Be2 Qb8 Bc4 Qa8 Ba2 Qc8 Qe8 Qd7 Qf7 Qe8 Qd7
1B2qR1r/R4B2/N6B/n1b1p1pp/1NbBq3/2Q2pkP/Qr2R1q1/B1qK4 w - - 0 1 illegal: No proof kernel
BRR2R1N/1q2pr2/Q1bnnk2/1p1BN1b1/2n5/1Ppp1qR1/1B1Q4/R4n1K w - - 0 1 illegal: No proof kernel
1B5B/r3p3/1b5B/1B2NQ1B/1pnnP3/p1NbQ1Rp/1Nn1q1Rq/k5nK w - - 0 1 illegal: No possible last move
r1N2QR1/R2r1B2/pKNQ1q2/3p4/2qqkB2/1Q1nqp1N/NbNPb1p1/8 w - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 hxg4 a5 Qg5 a6 Nc6 b6 Nd8 b5 Nb7 axb7 Qd8 Kf2 Ke7 b8Q Kd6 e4 Ke5 h4 f5 b7 g5 h5 d6 b6 c5 h6 f3 Ke3 g3 h7 f2 Bc4 f1Q Na3 g4 Qb3 g2 Bf7 g3 Nh3 c4 Nc2 c3 Rg1 Qc7 Ba3 d5 Bb4 Bg7 Bd6+ Kf6 Kd4 f4 e5+ Kf5 Ra3 Nf6 e6 Qe7 Kc5 Rd8 h8Q Rd7 Qf8 Ke4 Kc6 f3 Bf4 Qd3 Qd6 Qd4 b8N Ba6 b7 Be2 Na6 Qe3 b8N Qd4 Rh1 g1Q Nab4 g2 Na2 Qge3 Rb1 Qd8 e7 Bh8 e8N a6 Ra4 Qe7 Rb4 Bg7 Rb7 Qd8 Ra7 Bh8 Na1 c2 Rb2 c1Q+ Nc2 Re7 Rb1 Nd7 Rb2 Nc5 Rb1 Rc7+ Kb6 Qf1 Nc6 Rd7+ Qc7 Bb5 Qa3 Qe7 Ka5 Rdd8 Qg8 Bd3 Rb8 Qda1 Kb6 Rd7 Qb3 Bd4 Rd8 Qf6 Qh8 Qc3 Qg7 Qfa1 Rc8 Be2 Nd6+ Kd3 Rh8 Qb2 Nc8 Ke4 Qf8 Qc4 Qcd6 Qbc3 Rh5 Qc3d3 Rh7 Bb2 Rh8 Qdd4 Rg8 Nd3+
b1kbQB2/1p1nQ1b1/1B2N2B/5R2/K3R1pp/N3rBB1/1Pp1n3/3Qn1br w - - 0 1 illegal: Other
2B3K1/N2n4/r1prqQrk/2Q2Qpp/Rp3nP1/1RbQ2N1/p2Bb3/4NQ2 w - - 0 1 illegal: No possible last move
Rr4NQ/1BkpQ2p/5BB1/b1K5/2q1P1rn/1Bp3Np/n1N2Bp1/1R2rb2 w - - 0 1 illegal: No proof kernel
Q6R/1p1N2pp/2RR1pbK/2p1RQPB/8/q1r1B1bq/n1R1Nr2/k1n1Q3 w - - 0 1 illegal: Other
1N2B1N1/2N1B2N/r1n1RpQ1/Rbp1r2q/pRP1q2p/2p3K1/3nk3/QN4n1 w - - 0 1 illegal: No possible last move, all moves rejected
1nKBq1b1/R1Q4p/B4p1n/1r1Bp3/QN2q1pp/1r1nP3/2R3Nk/Q2B1B2 w - - 0 1 illegal: Other
2q1Nkr1/1n1p3Q/Kpbp4/q7/B1B1Bp2/qPbp2Qr/1R2R1B1/4BQ1N w - - 0 1 illegal: No proof kernel
kBbr2rR/p2pn3/2NPK1b1/1bR1R2q/3R3B/1p3Bp1/4Q1pN/2b1RQ2 w - - 0 1 illegal: Other
B1K4R/q6q/p5p1/p1Q2nkN/2NNpr2/PrbNp2n/1B1pQN1R/1R6 w - - 0 1 illegal: No proof kernel
1Q2KNR1/q1R1Rnr1/R3b2R/P6R/1b6/p1bNR3/rr4b1/2Bk1rqB w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Nc6 Bc4 bxa4 Bf1 a3 Rh2 a4 Rh1 Na5 bxa5 Bb7 Bb2 Ba6 Bc1 Bc8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 h5 f4+ Kh6 g4 c5 d4 e6 f6 h3 f5+ Kh7 f7 a2 g5 c4 f6 Kg6 d6 h2 d5 h4 d7 a3 d6 h3 Nd2 c3 Qb3 Kh5 g6 Kg4 g7 c2 Qb8 Kg3 Nc4 Kf2 Bg2 Ke1 Nb6 Ne7 g8R Qc7 d8R Qa7 d7 Kd1 Kd6 e5 Re8 e4 d8R e3 Rd7 e2 Rc7 e1B Nd7 Rh7 Nf3 Nc6+ Re7 Rg7 Nfe5 Nd8 Rb1 a1R Nd3 Ra2 Rb6 Rg4 Ra6 Rg7 Rf1 h1Q Rf5 h2 Rh5 Qhg1 Bh1 Bc3 Rgh8 Ne6 R8h6 Ng5 Kc6 Qgd4 Re3 Bfb4 f8R Nf7 Rg8 Qg4 Rge8 Qg1 Nf8 Bg4 R8e7 Be6 Bd5 h1B Bg2 Bc4 Kd7 Bb3 Bb7 Bg2 Ke8 Be6 Bd5 Bgh3 Bh1 Bg2 Qd8 Rb8 Qc8 Ng5 f7 Rb7 Qb8 Rb5 Nd7 Rb6 f8R Nf7 Rg8 Rb7 Bb2 c1R Nf8 Rb1 Bc1 Rb5 Rg5 Rf5 Rgh5 Rbb2 Rb7 Rf6 Rbc7 Rf1
1q2n3/1N3N1k/1bp3Nr/2N1N1nP/B3n3/pR1K2NB/1R2rQq1/2rNb3 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b3 f5 Ba3 h6 Bd6 f3 Be7 f4 Bg5 Bf5 gxf5 hxg5 d4 Kf7 Kd2 a5 e4 g4 h4 g5 b6 Kg7 e5 g3 h5 a4 e6 f2 b7 f3 b4 g4 d6 a3 d7 g2 e7 g3 e8B Kh7 b5 Na6 b8N Qh4 d8N Ne7 d5 Qe4 b6 Nc8 b7 Kh6 f6 Kh7 d6 Qe5 f7 Qg5+ Kd3 Qe5 d7 Be7 Rh3 Bb4 Qe2 Nd6 Ra2 Ne4 Nbc6 Be1 b8N Qb2 Ne5 c6 Nb7 Qb3+ Nc3 Nc7 d8N Ra5 Bd7 Ne8 Qe3 Qb4 Be2 f1R Rb2 f2 Bd1 Ra8 Nge2 g1B Ba4 g2 Qd4 Qd6 Na6 Qb8 Nd1 Ra7 Nd6 Rb7 Bg4 Re7 Nc5 Ng5 Ng3 Re6 Nf3 Re2 f8N+ Kh6 Nce6 Qa7 Ng6 Rd2+ Kc4 Re2 N8b7 Bc3 Ne3 Rc1 Nh1 f1N Nd1 Qb8 Nfe5 Ng3 Qf4 Bb6 Nec5 g1Q Qf2 Kg7 Ndf7 N3e4 Rg3 Qh2 Bh3 Qg2 Rd3 Rh6 Ng3 Be1+ Rc3 Qc7 Kd3 Qb8 Rcb3 Kh7
1rNk2BK/qB3RR1/B1p1q3/3Bqn2/1B4b1/1BrQ2Pn/4B2p/n1N1q3 w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 g5 b4 axb4 h4 c6 hxg5 Bc5 e6 Be7 c5 Bd6 d4 Bc7 d5 Ba5 d6 Bc7 dxc7 d6 Qd5 dxc5 Qd1 c4 Kf2 f5 Kg3 h5 Kh4 b5 e4 b3 a4 b4 g3 b2 a5 f4 e7 b3 g6 c3 Kg5 c2 a6 f3 a7 h4 e5 f2 g7 h3 Kg6 h2 Qd3 Bh3 c8B Qd5 Bd2 c1Q Ba6 Nh6 g8B Bd7 Kg7 Nf7 Be2 f1N Na3 b1Q Bb4 b2 Nb5 Bg4 Nd6+ Kd7 e8B+ Kd8 e6 Qe3 Ra3 Qa1 Nc8 Ng5 Bef7 Nd7 Rb3 Rb8 a8B Nh3 B8b7 b1Q+ Rb2 Nc5 e7+ Kc7 e8B Qde6 Bd7 Rh5 Bde8 Rd5 Kh8 Nb3 Bd7 Rc5 Bde8 Qc4 Bd5 Qe1 Bef7 Qa2 Rd2 Na1 Bfe6 Qce4 Bb3 Qg5 Bed5 Ne3 Rb2 Qe6 Rb1 Qf2 Rf1 Qe1 Rf7+ Kd8 Rg7 Nf5 Bf1 Q1e4 Ne2 Qa3 Nc1 Qe1 Be2 Rc3 Rf1 Qf4 Rf2 Qfe5 Rf3 Qa5 Rf1 Qb6 Rf3 Qa7 Rf1 Nd6 Rf7 Nf5
2r5/krQNR1NN/4N3/1n1Nb2B/K1pP1nB1/N1b2N2/pr2R1np/5q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 g4 Bd7 b3 Na6 Bb2 Bg7 Be5 Nb8 Bf4 gxf4 h3 Bf8 g5 Be6 Ra4 Bf7 Ra3 Bh5 Ra1 Bg4 hxg4 Bh6 Ke2 Bg7 Ke1 Bf8 d4 Kd7 Kd2 Kc8 Kc2 Kb7 b6 a5 d6 e5 d7 h5 g6 c5 f6 a4 g7 f3 b4 f2 f7 e3 b5 a3 Kb3 a2 g5 h4 g6 h3 Rh2 e4 Na3 e2 Qc1 e1R Be2 f1N Bh5 Be7 f8N e3 Nh7 Qc7 d8N+ Kc8 Nf3 Na6 b7+ Kb8 Ka4 Ka7 b8N Nf6 g8N e2 g7 Nd5 Ngf6 Nfe3 g8B Bd6 Ne8 Nf4 Be6 Rh1 Bf5 e1B Bfg4 Rg1 Qc3 Rg2 Ng7 Rb2 Rc1 Bd2 Re1 Re8 Rf2 Neg2 Re7 h2 Rfe2 Be5 Nde6 Rd8 Qc1 Rd7 Qc2 Qc6 Qc4 Nc7 Na6 Re8 Nb4 Rc8 Qc1 Qe4 Nd5 Qb1 Qc2 Qf1 b6+ Kb8 b7 Ka7 b8N Nb5 Qc4 Rb7 Nd7 Bc3 Qb4 c4 Qd6 Qc1 Qc7 Qf1
1N2r1N1/3P2N1/1Np1N1Q1/1n1rq3/3Rp1q1/Kb2pn1B/1p1Np2R/2k2NB1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 a5 c3 h5 gxh5 f5 Qa4+ b5 Bc4 e6 Bf1 e3 Qc2 Bd6 Qe4 fxe4 bxa5 b4 Ba6 b3 Bf1 Bb4 cxb4 Ba6 Bc4 Bb7 Bf1 Bc8 Kd1 Ke7 f4 Kf6 a4 Kf5 h4 g5 d4 g4 a6 e5 d5 g3 h6 b2 Kc2 e2 Kb3 c6 h5 g2 d6 Rh7 d7 Re7 a5 Qe8 h7 Qg6 h8N Nh6 b5 Qh7 a7 Nf7 h6 Na6 b6 Nc5+ Ka3 Nd8 a6 Ndb7 Ng6 Nb3 Rh2 Rb8 a8N N7c5 b7 Re8 a7 Qf7 h7 Qg7 h8Q Ne6 Nf3 g1Q Bh3+ Qg4 Qh5+ Ng5 Nc7 Rg8 a8N Qh8 Ne8 Qf6 Nbd2 Qe6 Nb6 Qf6 Nf1 Nd4 Be3 Rf8 Bg1 e3 Re1 Ke4 f5 Kd3 Rd1+ Kc2 Ng7 e4 N3d2 Ngf3 Ne7 Re8 Qg6 Qe5 f6 Nb5+ Ka2 Qgh5 f7 Qg4 f8N Ra8+ Na4 Ra7 b8N Ra5 Nfe6 Ba6 Ng8 Bc8 Nc4 Ba6 Rd4 Kc1 Kb3 Nc7 Ncd2 Rd5 Nb6 Bc4+ Ka4 Bb3+ Ka3 Nb5+
B2BB3/n6n/qK2nP2/3bQ1B1/1b2qqb1/2r1r2N/2kBbr2/BRN3RB w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 e5+ Kc4 a5 f4 h5 g4 d3 g5 a4 b6 d5+ Kb5 d4 c4 a3 b7 a2 c5 d2 f6 h3 f5 h2 c6 h4 g6 h3 f7 d3 g7 Qd4 c7 Nf6 g8B Nc6 b8B Ra3 Qb3 d1B Bd2 Nh7 f6 Be2 Qb2 Bcg4 c8B Nd8 Bd7 Rc3 Be8 Ne6 Bc7 Qf2 Bd8 Qf4 Ka6 Bd6 b5 Bb4 f8B Kd4 b6 e4 b7 e3 Bc1 d2+ Kb6 Kd3 b8B d1N Bgf7 Rg8 Bd2 Rg5 Bg2 Rf5 Qa3 Kc2 Qa5 Bb5 Bg7 e2 Ba8 e1R Bh6 Ree3 Bg5 Bbe2 Qd5 Nf2 Qa5 Ne4 Be5 Nd6 Bec6 Nb5 Bfe8 Na7 Qd5 Rb3 Nc3 Ra3 Rd1 a1Q Na2 Rac3 Nc1 Qa2 Bd4 Qc4 Qe5 Qa2 Nf3 Qc4 Rhe1 h1Q Ng1 h2 Nh3 Qhe4 Rg1 h1B Bcb7 Rb3 Ba1 Rbc3 Na2 Bhf3 Rb1 Qcd3 Nc1 Qdc4 Bbc6 Qa2 Kb7 Qa6+ Kb8 Qd5 Nd3 Qfd4 Nc1 Bh1 Bcb7 Rf2 Bbc6 Qf3 Bd5 Qff4 Bg2 Qac4 Kb7 Qdd3 Kb6 Qg6 Bf1 Bd5 Bg2 Qge4 Bh1 Qa6#
1NrQnNN1/2BNR1Nr/br4P1/2brbR2/B7/N1b1nN2/6k1/K3br1q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc3+ e3 b4 Kf4 Kb2 a5 b6 h5 f3 Kg3 g5 c5 g6 e5 b7 h3 b5 e2 d6 e1B d7 c4 b6 e4 f4 e3 d5 e2 f5 c3+ Ka2 c2 f6 a4 d6 h2 f7 h4 Bh6 c1R Bg5 h3 Nc3 a3 Qd4 Rd1 Nb5 Bc3 Nf3 Nc6 b8N e1B b7 Nf6 Qd5 Na5 Bf4+ Kf2 Be2 Rh6 Rf1+ Kg2 Rb1 Be7 f8N h1R Rb4 h2 Re4 Qb6 d8N Qg1 d7 Rh7 Nde6 Ne8 d8N Bc5 Ng7 Nc4 Nf7 Ne3 Qd8 Rd5 Nbd7 Be5 b8N Ba6 Kb1 B5c3 Re7 a2+ Kc1 a1B Kb1 Be5 Na3 Bad4 Nh6 Bdc3 Nc6 Rc8 Ncb8 Rd2 Ng8 Rb2+ Ka1 Rh5 Nd2 Rh7 Rf3 Qf1 Bd3 Rg1 Bf5 h1R Bc2 R1h5 Ba4 Rf5 Bg3 Rg5 Rf6 Qf3 Rff7 Rf1 Rf5 Qh5 Nf3 Qh1 Nb6 Rg4 N6d7 Rd4 Bh2 Rd5 Bg3 Bed4 Bd6 Be5 Bc7 Rb6+
2b2Nq1/1r2N1NQ/nk3K2/bnN3bN/5B1r/1NRrb2n/6P1/N2B1nRb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 a5 e4 f6 d4 h3 b4 h4 b6 a4 b5 f3 d6 f2 d5 a3 e5 c4 e6+ Ke8 b7 h2 b6 h3 Be2 f1R+ Bf4 a2 Qc2 c3 Na3 Rh4 Nf3 Rd1 Nd2 Na6 b8N Bh6 b7 Ra7 Rg1 h1N Nc6 h2 b8N Rb7 Nb3 Nf2 Rc1 a1B Ne7 h1B Nd7 Nh3 Ndc5 Rd3 Bd1 Bb2 Kg6 f5 Qb1 Nf6 Nc2 Ne4 Nca1 c2 d7+ Kf8 d6 Nc3 Kf6 Nb5+ Be5 Qe8 d8N f4 d7 Ba3 Bd6 f3 Bf4 f2 Ne4 f1N Ng3 Ra7 Nb7 Bb4 d8N Ba5 N7c5 Rad7 Nh5 Rb7 Nf7 Qd8 Ng5 Ke8 Nh7 Qd5 Nf8 Kd8 Qb2 Qc4 Qd4+ Qd5 Qe4 Qc4 Qh7 Qd5 Rb1 c1B Rb2 Be3 Rc2 Qf3 Rc1 Qg4 Rc3 Qg8 Nd5 Bd7 e7+ Kc8 e8N Kd8 Ne7 Bc8 Nd6 Kc7 Ne8+ Kb6 Neg7 Bg5+
2n3Q1/K1bN1rN1/B1b2N2/2brbN2/qB1R3R/N1nP1n2/3bN1pN/4n2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 b4 Ke5 e4 c5 h5 f5 b6 a5 b7 g5 d3 a4 b5 c4 h6 a3 b6 c3 h7 a2 d6 c2 d7 g3+ Kf3 g4+ Ke2 g2 Nh3 g1B Ng5 g3 Kd2 f3 Kc3 f2 Kc4 f4 Kb5 f3 Bh3 f1N Ba3 Kf4 e5 c1B e6 g2 e7 Kg3 e8N f2 Bb4 Bd2 Na3 Ra7 Nf6 Ne7 Nf3 Bh2 Qb3 Ne3 Bf5 f1N Qg8+ Kf2 Kc5 Be5 Nh2 Qe8 d8N Bd7 Ne6 Nc2 Ng7 Bc6 Bc8 Bc7 Re1 a1B Re4 Bae5 Rf4+ Bf3 Rd4 Nd7+ Kb5 Kg3 b8N Ne1 b7 Nd5 Nc6 N7b6 b8N Bc5 Ba6 Nc3+ Ka5 Kh3 Ne7 Bc6 Nef5 Rb7 Nbd7 Qa8 Qa2 Rd8 h8N Qa7 Qg8 Qa8 Nb8 Rd5 Nbd7 Qa7 Ng6 Qa8 Nh6 Qa7 Nf4+ Kg3 Nf3 Nh2 Ne2+ Kf2 Nhf5 Qa8 Ng5 Nhf3 Rhh4 Qe8 Nh3+ Kf1 Nf2 Qa8 N2g4 Qa7 Nc1 Kg1 Nh2 Kh1 Ne2 Rb8 Qe6 Rf8 Qf7 Qa8 Qg8 Qe8 Bc8 Rf7 Ka6 Bb7+ Ka7 Ba8 Nf8 Qa4+ Ba6 Bc6 N8d7 Nc8#
1B4bB/1R1pq1r1/6kb/P1N1p1B1/2n3qq/6NQ/3BRnBb/Kn1B2rB w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Kd2 Kf7 a4 g5 c4 e5 Kc2 b5 Kb2 b3 f4 b4 h4 g3 f6 g4 a5 g2 f5 g3 h5 Ra7 c6 Bd6 c7 Ra8 h6 Qf8 h7 Na6 c5 Qe8 c6 Nb8 Nc3 Qe6 Bd2 Na6 Na4 Ne7 Ne2 g1Q Rh2 g2 Ng3 Bb7 c8B Nc5 c7 Nd5 Rb1 Qe7 Qf3 Nd3+ Ka1 Nb6 Nc5 Nc4 Be2 Bd5 Bb7 Rag8 c8B Rg7 Bd1 Rhg8 h8B Nf2 Ba8 Qh1 Bcb7 g1B Qg2 Be6 Qh3 Qf3 Bg5 Qg4 Bh1 Bd5 Rg2 Bh2 Bb7 Qe8 Rb2 Bf8 Ba8 Qe7 Bb7 Nd3 Rge2 Be6 Bbg2 Nf2 Rbd2 Qh4 Rd6 Qg4 Rb6 Bd5 Rb7 b2+ Ka2 b1N Ka1 b3 Bd2 Rh7 Bg5 Bh6 Bd2 Kf8 f7 Qeh4 Bg5 Rhg7 Bd2 Ke7 f8B+ Kf7 f6 Kg6 f7 Be6 Bd6 b2+ Ka2 Rc8 f8B Bg8 Bfe7 Rf8 Beg5 Rf3 Nge4 Rg3 Bgf4 Qe7 Bb8 Qgh4 Bg5 Rg4 Bf1 Rg1 Ng3 Qe8 Re4 Nba3 Bfg2 Qe6 Re2 Qeg4 Kb3 b1Q+ Kc3 Qbf5 Kb3 Qe6 Ka2 Qe7 Ka1 Nb1
nBr5/2n2nbB/NRPR1Nnk/K2R1R2/bRp1R2n/R5p1/1q3q2/r2Q4 w - - 0 1 illegal: No proof kernel
1kbB2BB/2p5/1rbPRRb1/q3B3/Nb2bpKB/1NQ3rB/1B1q4/2n3n1 w - - 0 1 illegal: No proof kernel
1rrBr3/kn1qqQ2/1q1B2nB/NpBqR1K1/B2BP1Np/2bR4/8/B2b4 w - - 0 1 illegal: No proof kernel
3B4/KNRnbNNk/2Q1N2b/1p3R1q/P2p2q1/Nr1Bnb1N/rr2N3/5r2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 e5 Kc4 d5+ Kb5 g5 f4 Kg7 h4 d3 c4 e4 a4 d4 h6+ Kh7 c5 e3 c6 g4 c7 b3 Kb6 g3 h5 d2 f6 g2 f5 e2 f7 e1R f6 b2 Bd3+ Bf5 Qf3 d1Q Bg5 Qe2 Na3 Rf1 Rc1 Qd7 c8N Ne7 Rc7 Be4 Nd6 Rg8 Rh4 Ng6 Rf4 Kh8 h7 Qf2 Nh3 g1B Bh4 Qe8 Rf5 Nf4 Qg2 Qe2 Qh1 Bg7 f8N Ng2 f7 Bf2 Bd8 Ne3 Qg2 Ra5 Qg6 Rb5+ Ka7 b6 Nb7 b1R Qc6 R5b3 Qd6 Bh6 Qc6 Kg7 h8N b5 Nhg6 Bh4 Ngf4 B6g5 h6+ Kh8 h7 Nd7 Bc2 Bh6 Bd3 Kg7 h8N Be7 N8e6+ Kh7 Ng7 Bh1 Ngh5 Rg2 Ng7 Qg4 f8N+ Kg8 Rh5 Ra2 Rf5 Qeh5 Nf7 Bf3 N8e6 R1b2 Ne2 Kh7
1BB3bN/B6n/6P1/r2rrBq1/1Qp5/RR1bqBb1/Knb3pk/BB2N3 w - - 0 1 illegal: No proof kernel
3b1nK1/1k1q1rN1/3bQpRB/1r4nB/1BBBp2r/1p1b1q1B/PN4R1/5B2 w - - 0 1 illegal: No proof kernel
n3N3/K1Q1Prn1/BqpB1q1p/8/rBb1BB2/1N2pr1k/1R2R2n/1B2B1b1 w - - 0 1 illegal: No proof kernel
4r1R1/3N1pN1/1b2N1N1/4N1p1/2q1nPpp/nrB1Q3/2Bb1qr1/R3NkNK w - - 0 1 illegal: No proof kernel
qR1RQq1n/2k1p2R/1R5P/R2pR3/5b1R/K4q1r/1pp4N/1BnbrNB1 w - - 0 1 illegal: No proof kernel
1r1Q1KN1/3N1Rb1/p1b1bNkN/1P3n2/NR2p1p1/2N1b3/4q1pB/2N1nr1B w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Kc3 d5 Kb4 g5 f4 e5 h4 d4 c4 d3 h5 g3 f5 g4 f6 a6 h6 e3 h7 d2 b6 e4 b7 e2 Ra4 e1B Ne2 Qc7 Bg2 Bf2 Rf1 Be6 Nbc3 Be7 Bh1 Kg6 f7 g2 f8N+ Kf6 Nd7+ Kg6 Nf6 Nd7 b8N Ne5 Nbd7 Bd8 c6 Be1 Kc5 Bf5 b4 Ne7 b5 Rc8 Rb4 Re8 h8N+ Kg5 Nf7+ Kg6 Nh6 Qa5 Kd6 Bb6 c5 Qa2 c7 Rb8 c8N Be6 c6 Rf8 c7 Be3 Ncb6 Nd3 c8N Rf7 Nba4 Nf5+ Kc7 Bh4 Kd8 Ne1 Ke8 Bg3 Bb2 Be5 Nc1 Qc4 Rf2 Qe2 Rf3 Bd5 Rf1 Bc6 Rf2 Rh7 Kf8 Re7 Qc2 d1B Qd3 Bb3 Qd6 Bcd5 Qb6 Bb7 Qd8 Be6 Ba3 Rh7 Rf3 Bc6 Ne7+ Kg5 Neg8 Kg6 Rb1 B5d4 Bd6 Rh8 Rb4 Rh7 Nh5 Bh8 Nhf6 Rg7 Bh2 Rh7 Nf7 Rh3 Rf4 Rf3 Nfh6 Rf1 Ne8 Nd4 Rf7 Nf5 Nef6 Bg7+
1BRb1r2/N4r2/8/N1Qpq2Q/2BQB2p/1P4RB/b1p4k/1bKN4 w - - 0 1 legal: proof: e4 a5 b4 b5 bxa5 g5 h4 gxh4 d4 f5 exf5 e5 dxe5 b4 a4 b3 cxb3 Nc6 a6 Nd4 Qxd4 Nf6 Qd1 Nd5 a5 Nb6 axb6 Rxa6 b7 Ra8 Kd2 Kf7 b8N c5 f4 h5 g4 d6 f6 Ke6 f5+ Kd5 g5 Ke4 g6 Kf4 g7 Kg3 g8B c4 e6 h3 e7 h2 e8B h4 f7 Qc7 f6 Ra7 Nc6 Bg7 f8Q Rb7 f7 Rb4 Bh3 Rh6 Nc3 Be5 Ra8 Qb7 Qh5 Bg4 Nb5 Qa6 Rc8 Qa5 Nba7 Rh7 Qg7 Bf6 f8Q Qe5 Na5 Bd8 Bc6 Rb8 Be4 c3+ Kc2 Ra8 Bc4 d5 Qc5 Rb8 Bg5 Bf5 Kc1 Bg6 Qh8 Rf7 Be7 Bh7 Bd6 Ra8 Bb8 Bf5 Bf3 Bb1 Be4 Ba2 Qf6 Qc7 Qfd4 Qd6 Nf3 Qe5 Rf1 h1B Nh2 Bf3 Ng4 Be2 Rf4 Bd3 Nf2 Kh2 Nd1 Bdb1 Rg4 c2 Rg3 Rf8 Nb5 Ra6 Na7 Raf6 Bd6 Rf2 Bb8 R2f7
bB2Q3/6RN/n3Rp2/kn4r1/3BNN2/P1n1rnQQ/K1B2nb1/2N1q3 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 d4 h5 gxh5 c5 dxc5 b5 Qd3 Bd6 Qb3 Bc7 Qd1 Bb6 cxb6 Bf5 Qd4 Be6 Qd1 Bc8 Kd2 Kd7 Kc2 g5 Kb3 f6 h4 g4 e4 g3 d6 Kc6 a3 g2 e5 f3 d7 f2 h6 Qc7 d8N+ Kc5 b7 Kb6 h7 Qd6 e6 Qf4 h5 Ka5 h6 Qe5 e7 Nc6 b8B Bb7 e8Q Qe1 Ne2 g1N Qd3 Nf3 Nd2 Ra7 Bb2 Ba8 Rh3 Rg7 Bd4 Rg5 Kb2 b3 Rg3 Nb4 Nf7 Na6 Nc1 b4 Ne4 Rh5 Kb1 b2 Ka2 b1N Rg7 Rg5 Be2 f1B Bd1 Bg2 Bc2 Rc5 Nfg5 Nc3+ Kb2 Nb5 Ka2 Rd5 Qe3 Rc5 Qf2 Rc3 Qg3 Re3 Rb1 Ne7 Rb3 Rg8 h8N Nd5 h7 Nf4 Ng6 Nd3 h8Q Nf2 Rc3 Na7 Nh7 Nb5 Rc6 b3+ Kb1 b2 Ka2 b1N Re6 Nfd2 Nf4 Nf3 Rge7 Rg5 Rg7 Rf5 Nf8 Re5 Qhh3 Rg5 Nh7 N1c3+
6R1/R1PRQ2q/1Q2N2N/N1b4K/B3r1b1/1b3k2/B1pbn1Rn/B2q2q1 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 h5 exf5 c5 g4 Qc7 gxh5 Qd8 c4 a5 b4 Ra6 bxa6 cxb4 c5 d6 Qb3 d5 Qc4 dxc4 Ke2 Kd7 Kf3 Kc6 Kg4 Kd5 f4 Ke4 d4 e5 h4 g5 c6 b3 c7 c3 d5 a4 d6 b2 d7 a3 h6 a2 h7 c2 h5 Bd6 f6 Ba3 f7 Qe8 f8R Bc5 f5 Bb6 d8R Qa4 h6 Qb5 a7 Qd5 a8B Na6 Bc4 Nc5 Ne2 Qc6 Nd4 Nb3 Rg1 Bc5 Kh5 g4 f6 g3 f7 g2 Ne6 Nd4 Rd7 Kf3 Na3 Qe4 Bc6 Ne2 Ba4 Qd3 Bcb3 e4 Nc4 e3 Na5 Qe4 Bd2 Qd3 Bc3 Nf6+ Kh4 Rg8 h8Q Ng4 h7 Nh2 Qd4 Rg4+ Kh5 Re4 h8N Qd1 Rg8 Qd3 Rae1 a1Q Ba2 b1B Qd6 Qd1 Qb6 Qb2 Bg7 Qa3 Ba1 Qad3 Bc4 Ba2 f8Q+ Rf4 Qe8 Bb3 Nf7 Qh7+ Nh6 Rd4 Qe7 Re4 Rh1 g1Q Rf1+ Qf2 Rfg1 Qfe1 R1g2 Qg1 R8g5 Nd4 Rg6 e2 Rg8 e1B Bd5 Ne2 Bc4 Bd2 Bd5 Qf2 Rhg1 Ba6 Ra8 Qff1 Ra7 Bc8 Rg8 Qf2 R1g2 Qfg1 Bac6 Ba4 Ba2 Bb3 Ba4 Ng4 Rd3+ Bce3 Ng7 Nh2 Rd5 Bf5 Rd7 Bc5 Ne6 Bg4+
r1B2q1N/6R1/1R1Q1Rr1/2n1r1qk/2PQ1r2/Nq1RKn2/1p2B2q/3QN3 w - - 0 1 legal: proof: e4 a5 d4 c5 dxc5 f5 exf5 b5 b4 axb4 a3 e6 Ke2 b3 Bg5 b4 Bf4 b2 Ke1 b3 Bc1 Bd6 f4 h6 g4 Be5 g5 Bb7 f6 Bc3+ Bd2 Bf3 f5 Bb4 axb4 Qe7 Qe2 Kd8 Bf4 Bh5 Qd1 Bf7 g6 Qe8 Bc1 Kc7 gxf7 Qd8 Be3 Kc6 Bg5 hxg5 Ke2 d5 f8R Kd7 c4 d4 h4 e5 h5 g4 b5 g5 f7 Ke7 h6 Kf6 h7 d3+ Kf2 g3+ Kf3 g2 c6 d2 c7 e4+ Kf2 g4 c8B Kg5 f6 e3+ Ke2 g3 b6 Nd7 b7 Nc5 b8R Ne7 Ra2 Nf5 Rb6 Nh4 Rb4 Rg8 h8N Nf3 Ra7 Rg6 Na3 b1R Rb6 b2 Rh3 Rc1 Rd7 Rc2 Rd3 Qe7 Rg8 Qf8 Rg7 Rc3 Rh4 Rb3 Rf4 Kh5 Nh3 g1Q Ng5 g2 Rf5 Qe7 f8Q Qh2 Qd8 Qf8 f7 Rc3 Rff6 g1Q+ Bg2 Rc2 Qd4 Rc1 Nh3 Rc3 Nf2 Rb3 Bf1 Qg5 Rbe6 Rb7 Rb6 Re7 Rb7 Re4 Rbb6 Qfd6 f8Q Rf4 Qd8 Qe7 Q8d6 Qf8 Rc3 Nd7 Kd3 e2 Ke3 e1R+ Be2 Nc5 Rcb3 Kh4 Nd3 Kh5 Qc1 d1Q Qb1 Rf1 Ne1 Rf2 Rd3 Qb3 Bf1 Rc2 Qd1 Rc1 Be2 Ra1 Nac2 R1a7 Na3 Rf7 Re6 R7f5 Rf6 Re5+
3nQ1r1/1q2Bb1B/3p3k/R2BQ2N/n1n4r/1Np1r3/K3P1Qb/RR2B3 w - - 0 1 legal: proof: f4 a5 b4 b5 c4 e5 g4 h5 gxh5 exf4 cxb5 c5 a3 c4 d4 a4 Qxa4 Qf6 Qd1 Qe5 a4 Qc5 a5 Rxa5 dxc5 Ra8 Kd2 g5 Kc2 f5 Kb2 Kf7 h4 Kg7 b6 f3 b7 f2 h6+ Kh7 b5 f4 h5 g4 b6 d6 c6 f3 c7 g3 Bg2 f1Q Nd2 f2 Bd5 g2 Nh3 g1R Nf4 Bf5 c8B Ne7 Nb3 Qh3 Qf1 Qg3 Ra5 c3+ Ka2 Bg7 Qg2 f1N Bd2 Bg4 Be1 Na6 b8R Nd2 b7 Nc5 Bce6 Qf3 Bf5+ Ng6 Bb1 Na4 Bd3 Ra7 Ra8 Be6 b8Q Rc7 Qe8 Bf7 Qe5 Nc4 R8a7 Kg8 h7+ Kf8 h6 Ne7 R7a6 Nc6 Nh5 Nd8 Bc2 Rg8 h8B Re7 h7 Bh6 Bb1 Bf4 Bf6 Bh2 h8Q Rf1 Bc2 Qe4 Bg5 Rf4 Rf1 Qf3 Bh7 Rh4 Rb6 Re6 Be7+ Ke8 Qf5 Re3 Qfe5 Qe4 Nd2 Qf3 Rb1 Qe4 Nb3 Qf3 Be6 Qb7 Bd5 Bf4 Rc1 Bh2 Bd2 Rf8 Rg1 Be6 Ra1 Kf7 Rgb1 Re8 Be1 Rf8 Bg3 Re8 Bg8+ Kg6 Bh7+ Kh6 Be1 Bf7 Qhg8 Be6 Qf7 Rg8 Qe8 Bf7
3Bb1K1/2N2b2/1kP2B1p/1NNr2nq/1Qp4Q/1q5R/3rQ2R/nR2R2r w - - 0 1 legal: proof: e4 f5 exf5 b5 h4 g5 b4 gxh4 a4 c5 axb5 e6 bxc5 Bh6 Na3 Bg7 Nb1 Bf8 c4 d5 b6 a6 c6 Bd6 c5 Bc7 Bc4 dxc4 Nf3 Nd7 Ng1 Bb8 Rh3 Ba7 bxa7 Nb8 Rh2 Nf6 Rh1 Ng8 Ke2 e5 Ke3 e4 Kf4 h6 Ke5 e3 f4 e2 g4 e1Q+ Qe2 h3 d4 a5 f6 a4 f7+ Ke7 f8R h2 f5 a3 d5 a2 g5 Bb7 g6 Qd2 c7 Kd7 c8R Rh7 g7 Rh8 d6 Qb6 f6 Qd3 f7 Qc7 Nh3 Kc6 Ke6 Nd7 Nf4 Qh7 Bb2 Qc2 Rb8 Ba6 Na3 Qa5 Nd3 Ngf6 g8Q Nh7 Nb5 Qb3 Rae1 a1R Qgg4 Ng5+ Ke7 Rd1 Bf6 Rd2 Qh4 Rg8 Rb7 Rd8 a8N Rg7 Nac7 Rg8 Rhg1 h1B Rg3 Be4 Rh3 Bg6 Rb8 Bc8 Re8 Bb7 f8Q Ba6 Rb1 Bc8 Ra8 Kb7 c6+ Kb6 Rh2 Nc5 Ra7 Bg4 d7 B4h5 Rh3 Nce6 Ra8 Nd4 Nc5 Nc2 Ra7 Na1 Rh2 Qaa2 Ra3 Qd1 Rah3 Qab3 Qf7 Rg7 Kf8 Qh1 Qfe7 Qhd1 Be5 Rf7+ Kg8 Rf1 Qf8 Rh1 Re6 Be8 Bf6 Bhg6 Qd6 Ra8 d8B Ra5 Qee5 Qh5 Qe2 Rdd1 Qdd2 Ra2 Qb4 Rd5 Qed2 Rc2 Ree1 Rb2 Qg2 Rbd2 Qe2 Bgf7+
B2K3Q/1q1nNQ2/8/Q3RRrB/1QN1qN2/1p1rnn1P/5p2/1nkB1r2 w - - 0 1 legal: proof: f4 b5 b4 a5 c4 axb4 a3 e5 fxe5 d5 cxd5 b3 Nh3 b4 Ng1 b2 g4 f5 d3 h6 Kd2 b3 Ke1 Bb4+ axb4 Bd7 Bg5 hxg5 Qc2 f4 Qd1 Bf5 gxf5 Ra4 Nh3 Ra6 Ng1 Ra8 Kf2 Kd7 Kf3 c5 Ke4 c4 b5 g4 e6+ Kd6 d4 g5 e7 c3 e8B g3 f6 f3 Kf5 f2 e4 g2 f7 g4 f8N c2 e5+ Ke7 b6 c1R e6 Kd6 b7 g3 h3 Na6 b8Q+ Qc7 e7 Rh4 Nd2 b1N Bh5 Na3 e8B Nb4 Nc4+ Ke7 Bc6 Nb1 Ng6+ Kf7 d6 Qe7 d5 Qb7 d7 Rc3 d8Q Nf6 d6 Re3 d7 Nbd5 Qh8 Rd3 d8Q Nd7 Ra5 Rg4 Ne2 g1N Nef4 g2 Be2 Nf3 Re1 g1Q Ne7+ Rg6 Qdc7 Qh1 Qd2 Qg2 Rb5 Ra1 Bd1 Qh1 Re5 Ne3+ Ke4 Qg2 Qbd8 Qh1 Qb4 Qe1 Qca5 Qe2 Qhg8+ Kf6 Qd5 Rg5 Q8g8 Rf5 Qh8+ Kg5 Qf7 Na3 Bc2 Rf1 Bd1 Nb1 Rbc5 Kh4 Rb5 Rg5 Rf5 Kg3 Rbe5 Rg1 Nfd5 Kg2 Nf4+ Kf1 Bd5 Rc3 Bc6 Ke1 Bd5 Rf1 Bc6 Ng2+ Kd5 Qe4+ Kd6 Ne3 Bd5 Qb5 Ba8 Qbb7 Nb2 Kd2 Nc4+ Kc1 Ke6 Qa7 Kd6 Qa6+ Kc7 Rd3 Kd8 Qab7
1Q5R/b2K2k1/nN3q2/1Pb2ppQ/3n2n1/2RBNr2/N5pN/BqB4R w - - 0 1 legal: proof: b4 a5 g4 b5 f4 d5 a4 e5 axb5 exf4 c4 h5 cxd5 hxg4 b6 Rh3 Bxh3 Qe7 b5 Qd8 Bf1 Bf5 Na3 Bb1 Nxb1 Qf6 Nh3 Nd7 Ra4 Be7 Ng5 Kf8 Ba3 Nh6 Bc5 Re8 Ra1 Nb8 Nh3 Qd6 Nf2 Qd8 Ba3 Bc5 Bc1 Ke7 Rg1 Rh8 Rh1 Ke8 Nh3 Bf8 Ng1 Ng8 Kf2 c5 d4 f5 e4 Kf7 h4 g5 e5 a4 d6 f3 Ke3 g3 b7 a3 d7 a2 d5 f2 e6+ Kg7 e7 g2 e8N+ Kf7 d6 c4 Kd4 c3 Ke5 c2 h5 Bg7+ Nf6 Ne7 h6 Na6 b8N Qc7 d8B Qb7 h7 Kg6 Ke6 Qa8 d7 Qa7 Nc3 Re8 h8R Bf8 Ng4 Kg7 Ne3 Qd4 Bd3 f1N Qh5 Nh2 Nf3 Ng4 Nh2 Nc6+ Be7 Qb6 d8Q Nd4+ Kd7 Qf6 Bd6 Re6 Be5 Bc5 Rb1 a1B Na2 Ba7 Rb3 Bb2 Rc3 Ba3 Kc8 Re8 Nd7 B3c5 Nb6 Re6 Kd7 Rc6 Bb2 c1Q Qb8 Qb1 Ba1 Rc8 Bf4 Rc6 Ned5 Re6 Bc1 Re1 Ne3 Rf1 Rf8 Rf4 Rh8 Rf3
1bQ5/6Rr/1R1n2Kp/1r5P/N2N2Q1/p2Bp2N/2rR1N1k/2rBQ1qb w - - 0 1 legal: proof: b4 a5 f4 d5 a4 c5 bxc5 g5 fxg5 b5 axb5 d4 d3 Na6 Bd2 Bd7 bxa6 Bc8 e3 dxe3 Ke2 exd2 Kf3 Kd7 Ke4 Ke6 h4 f6 g4 h6 c4 a4 g6 a3 c6 Bg7 c7 Qd6 g5 Qd7 d4 Bf8 g7 Qd6 g6 Qh2 d5+ Kd6 a7 e5 c5+ Ke7 d6+ Ke6 d7 Qf2 d8N+ Ke7 c6 Kd6 h5 Rh7 Bd3 Qf1 Ra2 Bb7 c8B Qe1+ Kf5 e4 c7 e3 Nc3 Rb8 Nh3 Qg1 Qe1 d1R a8N Rd2 Nb6 Rc2 Nc6 Ba8 Nba4 Rb5+ Ne5 Bd5 Ne2 Bc6 Rh2 Bh1 Nd4 Kd5 Bd7 Bd6 c8Q Bb8 Rd2 Kd6 Rb2 Ne7+ Kf4 f5 g8R Kd5 g7 Kd6 Ng4 Kd5+ Qc7 Nc8 Ngf2 Nd6 Qc8 Bg2 Kg3 f4+ Kg4 Ke5 Be6 f3 Bb3 Rcc5 Bd1 Rc2 Ne4 f2 Rb1 f1R Nef2 Rbc5 Rb7 Rb5 Rb6 Kd5 Kf4 Bh1 Qg4 Nb7+ Kf5 Nd6+ Kg6 Ke5 Rd8 Rc4 g8Q Rc2 Qe2 Re1 Rd7 Rf1 Rg7 Re1 Ng5 Rf1 Q4c8 Kf4 Qe1 Kg3 Ngh3 Kg2 Qg4+ Kh2 Qc8 Rc3 Qe2 Re1 Qf1 Re2 Qe1 Rc1 Rb2 Rec2 Ra2 Rc4 Rd2 R4c2
4NR2/1B6/1R1BKPQr/QB5N/3p1R2/pNb1q3/bp4rb/1nR3bk w - - 0 1 legal: proof: e4 a5 b4 c5 d4 f5 exf5 h5 g4 cxd4 gxh5 d5 c4 Qb6 cxd5 Qa6 Bg2 Qc4 Bh3 Nc6 Bf1 a4 a3 Na5 bxa5 Qb3 Kd2 Qxa3 Ke1 Qa2 h4 Kf7 f4 Kf6 a6 e5 d6 b5 a7 g5 h6 a3 h7 g4 d7 b4 d8Q+ Ne7 h5 b3 h6 g3 Nh3 e4 Qg4 g2 Bb5 g1B Nd2 e3 Ke2 b2 Kd3 e2 Ke4 e1B Qa5 Qg8 Nb3 Bh2 Rf1 Rb8 a8B Qg6 Bb7 Ng8 Kd5 Qe8 Qg6+ Ke7 Bd2 Beg3 Rac1 Nf6+ Ke5 Rg8 h8N Bg1 h7 Nd5 Nf7 Be6 h8R B3h2 Nd6 Nc3 Rh6 Nb1 Bb4 Ra8 Rf3 Ra6 Rff1 Rc6 f6+ Kd7 f7 Ke7 Qh7 Rg2 Qg6 Kd7 Rf3 Bc4+ Kf5 Qe3 Ne8 Bc5 f8R Bd5 Na1 Ba2 Nb3 Be7 Bc5 Bh4 Bd6 Be1 Kf6 Bb4 f5 Bc3 B5a6 Rb6 Nf4 Rc6 Nh5 Rb6 Bc8+ Kc6 Bb5+ Kd5 Bb7+ Rc6 Kf7 Ke4 Ke6 Rd2 Rg3 Rg2 Rg4+ Kf3+ Kf7 Rg3 Rf4+ Kg2 Kf6 Kh1 Kf7 Qf3 Ke6 Rg2 f6 Rc7 Rhh8 Rh7 Rhg8 Rh6 Rg7 Qc6 Rc7 Qc5 Rc6 Qg5 Ra6 Qg3 Rb6 Qe3+
3N1B2/nK2Rn1R/p4Np1/1k2Nbb1/n1r2BR1/2p2QR1/3Pn3/2qQB3 w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 h5 g4 hxg4 a4 e5 axb5 d5 c4 a6 cxd5 e4 b6 e3 b5 e2 b7 exf1N b6 Ra7 bxa7 Ne3 Qc2 Nd1 Ke2 Kd7 Kd3 c5 Ke4 g6 a8Q c4 f4 g3 h4 g2 h5 Ne3 f6 Nh6 f5 Be7 f7 Rg8 f8R Bb4 f6 Ba5 f7 Nd1 d6 Kc6 d7 Kb6 Kd5 Qe7 d8N Nb2 Rh4 Qe3 Re8 Qe1 f8B Rg7 Nc3 Qf2 Rg4 Qf3+ Ne4 c3 Qd1 Qf6 Re7 Ng8 h6 Bd7 h7 Qf2 h8R Qe3 Rh7 Na4 Nf6 Kb5 Ba3 Bf5 Bc5 Nh6 Nf3 g1N Ne5 Qe1 Bf2 Nc6 b8B Na7 Rc1 Qf1 Be1 Ne2 Kd6 Bb4+ Kc7 Nf7 Kb7 Bc5 Bc7 Be3 Rg3 Bg5 Rb1+ Kc5 Rb4 Rg8 Rbg4 Kb5 Nc4 Qg1 Bf4 Rh8 Ne5 Qf1 Bh6 Re8 Bf8 Qg1 Ndc6 Rc8 Nd8 Rc4 Kb8 Qc5 Qf3 Qa3 Kb7 Qc1
2b3k1/1p5b/NRP1b3/b1R4R/BN1K3Q/1R1b1B2/1pp3Nq/r1QQ2b1 w - - 0 1 illegal: No possible last move, all moves rejected
2K2rQq/1rBrp1BQ/R3Q2R/2p5/2P2r1p/rBRN4/q1qk4/4NR2 w - - 0 1 legal: proof: g4 a5 e4 f5 b4 axb4 Ba3 d5 Bc1 g6 f3 Bh6 f4 Bg5 fxg5 dxe4 Be2 f4 Bd3 Kd7 Bf1 Ke8 h4 Bf5 gxf5 Nc6 f6 Ne5 f7+ Kd7 Nh3 Ng4 Ng1 N4f6 gxf6 Ra6 Bg2 Ra4 Bf1 Ra8 Ba6 g5 Ba3 g4 Kf2 Nh6 Bc1 Nf5 Ke1 Nd4 Bd3 Ne6 Bf1 Ng5 hxg5 Qb8 Bg2 Qg8 Bf1 Qd8 Ke2 Kc6 f8R Kb5 a4+ Kc4 d4 h5 f7 b5 a5 c5 d5 b3 d6 b4 g6 g3 d7 b2 a6 e3 Kf3+ e2 Ke4 g2 Ke5 f3 Ke6 b3 a7 f2 g7 Rc8 a8Q Qa5 d8B Rh7 Kd7 Rh6 g8Q Qd2+ Qd5+ Kb4 Nf3 e1Q Ra6 g1Q Bc4 f1R Ne5 Rb8 Bc7 Qgf2 Na3 Kc3 Nd3 b1R Qe6 b2 Bb3 Ra1 Rh2 Rb7 Kc8 b1R Qdg4 Qee3 Qge4 Rf6 Qeh7 Qh6 Rh3 Qd1 Bb2+ Kd2 c4 h4 Nc2 Rf4 Nce1 Qc2 Bg7 Ra3 Rd8 Qh2 f8R Rd1 Rd5 R1f3 Rh5 Qa2 Rff5 Qf6 Rh6 Qg2 Bf8 Qh8 Bg7 Rf2 Nb2 Qe4 Rc3 Qc2 Rf7 Kc1 Rf5 Rd7 Nbd3+ Kd2 Rfh5 Rf7 Rf5 Rf4 Rff6 Rfd4 Rf3 Rdf4 Rf1 Rf8+
qq1qnk1K/2n2P1q/1N5n/2pNRp1Q/6Q1/6BR/p2n2Q1/1R1QB2B w - - 0 1 legal: proof: c4 d5 d4 dxc4 h4 a5 e4 b6 d5 Nf6 h5 Ng8 a3 Ra6 a4 b5 e5 Rd6 exd6 bxa4 h6 e5 f3 g6 Qb3 e4 Qa3 Ne7 Qe3 Rg8 Qd2 Rg7 hxg7 h5 Qd1 Ng8 Bg5 Bf5 Bc1 e3 g4 Be7 g5 Be4 fxe4 f5 Qc2 Bf6 gxf6 g5 Qd2 Nc6 Qd1 Nb8 Ke2 c5 Kf3 c3 b4 c2 e5 a3 f7+ Kd7 e6+ Kc8 b5 h4 b6 g4+ Kf4 h3 Ke5 g3 e7 Kd7 e8R a4 b7 a2 Nf3 g2 Nc3 g1Q Nd2 h2 Bg2 e2 Nc4 e1N Bd2 c1Q Rb1 a1N Qh5 Na6 b8B Nf6 g8Q a3 Qgg4 Nec2 Be1 a2 Be4 Kc8 Nb6+ Kb7 d7 Ne3 Ke6 Nb3 Bbg3 Qb2 d6+ Kb8 Ncd5 Nd2 Re7 Ne8 Bf3 Kb7 Bg2 Kc6 Bf3 Qb8 d8Q Qh8 d7 Qg8 Qc8+ Nac7+ Ke5 Qg2 d8Q Qg6 Qa6 Qe2 Qac4 Qd3 Qce4 Qd4+ Kf4 Qdf6 Re5 Qe7 Bg2 Qd7 Qc2 Kd6 Qdg5 Qe7 Qgd1 Qef6 Qgg4 Qfd8 Be4 Nb3 Qg2 Nd2 Rg1 h1Q Bf3 Qhh4 Rh1 Qhf6 Rh3 Qh8 Qge2 Qhg8 Bh1 Qa8 Qg2 Qf8 Qgh4 Ng4 Q4g5 Nh6 Qgh4 Qdb8 Q4g4 Qe6 Kg5 Qfe7+ Nf6 Qed8 Kg6 Ke7 Kh7 Kf8 Nfd5 Qg6+ Kh8 Qh7+
1n2Q1rn/p5RQ/3PNQ1N/2b1b1Kp/1b4Bp/kpQ5/p3NB2/3RB3 w - - 0 1 illegal: Other
1r1b4/qRKR3B/3N4/1qPr1b1q/1r1B3N/Q1bN1n1n/2RQ3B/1n2Nk2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 g5 c4 d6 f4 d3 h4 g4 h6 b3 h7 e4 b6 d2 h5 e3 h6 g3 b7 g2 Ra2 e2 Rc2 e1B Ne2 g1Q Na3 Nc6 b8R b2 Rb7 b1N Rh3 Bf2 Rd3 Ne5 c5 Nf3 Kc6 Qe8+ Kc7 d5 Qe1 d1R Qd2 d4 Bg2 Ne5 Be4 Bg7 Bb2 Qg4 Nc1 Ne7 Bc3 Rg8 h8B N7g6 h7 Qh5 Bb2 Nf3 Ba1 Ke7 f6+ Ke6 f5+ Ke5 f7 Ra4 f8Q Rb4 f6 Bf5 f7 Qb5 Qa8 Nf4 f8N Bh4 Bb2 Nh3 Ng6+ Ke6 Qa5 Rb8 Ba1 Be7 Nh4 Bgf6 Bg7 Ke5 h8N Qf7 Bh6 Qh7 Be3 Bg7 Bg1 Bef6 Rdc3 d3 Bh2+ Kd4 Nf7 Bg5 Nd6 Be7 Qh6 d2 Nd3 Bg5 Rc4+ Ke3 Rd4 Ke2 Rd5 Kf1 Bd4 Re1 Qa6 d1Q Qa5 B5f6 Qd2 Qh5 Qa6 Qc1 Qa8 Rd1 Qa4 Qb2 Qb3 Qa2 Qbc3 Bg4 Bh7 Bf5 Bde5 Be6 Nf7 Rb2 Rc1 Qac4 Nb4 Nhg1 Qdd4 Rg8 Rd7 Rb8 Nac2 Nh3 Ne1 Bf5 Nd6 Qa2 Rc2 Qa7 Qa3 Be7 Qf4 Rd5 Nbd3 Rb4 Qd2 Bh8 Beg3 Ba1 Be5 Bc3 Bd4 Bd8+
1q3bbR/BRK1BnkN/5b1N/Q2Q4/1R1b2N1/3n3Q/1rP1bn1N/r5r1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kf2 e5 Kg3 d5 b4 a5 h4 e4 Kf4 g3 Ke5 d3 h5 a4 g7 Kf7 g6+ Ke7 h6 g2 f6+ Ke8 h7 a3 b6 e3 b5 e2 b7 e1B b6 d2 Qh5 d1N Nh3 g1R Bg5 d4 Nd2 d3 Nf3 a2 Rb1 d2 Nf2 Bb4 f7+ Kd7 f8N+ Ke8 Rh3 Ra6 Nh2 Nh6 g8N Be6 g7+ Bf7 Rh4 a1B+ Rd4 Ra3 Qh3 Na6 b8Q Nc5 b7 Be6 Bf6 Kf7 Qa8 Ra2 b8B Nd3+ Ke4 Bac3 Qa5 Ra1 Ba7 Qe8 Rc4 Bc5 Bd8 Bf6 Rb6 Bcd4 Rb8 Bg4+ Kd5 Be6+ Kd6 Qb5 Kc7 Qb2 Nfg4 N1f2 Ne3 d1B Ra4 Be2 Rb5 Nf5 Rb8 Bb4 Nh6+ Ke8 g8Q Nd6 Qgg5 Rg8 h8R Bc4 Nhf5 Kf7 Nh7 Re8 Qgg2 Re5 Qgf3 Rb5 Nh6+ Kg7 Neg4 Bg8 Qd5 Nf7 Rb6 Bf8 Be7 Qb1 Rb8 Rb6 Rc4 Qb5 Ra4 Qe8 Rb7 Rb2 Rab4 Qb8+
1k5N/rnbqb3/3rn1QB/4rb1Q/2n1R1P1/1K2B2Q/2rNB3/1rR1Q2N w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 g4 Kd7 d4 c5 Kd2 Kc7 Kc2 h5 f4 e5 f6 e4 f5 b3+ Kb2 c4 f7 e3 f6 h3 Qc2 h4 Qf5 h2 Nh3 e2 Qh5 e1B Nf2 h3 Ra4 Be7 f8Q Nd7 f7 Rh6 Qg7 Ba5 f8B Nc5 b6+ Kb7 d6 c3+ Ka3 b2 d7 c2 d5 Nf6 d6 Nd5 Rc4 Qe8 d8Q Ra7 d7 Nc7 Ka2 Re6 Qgg6 Ka8 Bf4 c1R B8h6 Rc2 Bfg5 Re3 Be2 Rd3 Rd1 h1R Rb4 Rd5 Re4 Rf5 Rf1 h2 Qh3 Kb7 Be3 Rg1 Re1 h1R Qgh5 Re5 Rd1 Bd6 Qf6 Be7 d8N+ Ka8 Qd6 Bf5 Nf7 Qd7 Qdg6 N7e6 Nh8 Kb7 Ka3 Kc8 b7+ Kc7 Rdd4 Rd1 Ra4 Rhe1 Nh1 Rd6 Nd2 Bb6 Kb4 b1N Ra1 Na3 Rb1 Nc4 b8Q+ Kc6 Ra1 Bbd8 Qb5+ Kc7 Qa6 Nb7 Kb3 Rd1 Qa2 Rg1 Qb1 Kb8 Qbf1 Bc7 Qf2 Rgc1 Qe1 Rca2 Rb1 Rcc2 Rd1 Ra1 Rc1 Rb1+
2q1Q3/1N2b1r1/rNQ3bk/2B1nRbq/5QR1/R2bNQ2/2P2b2/n1B1Kn2 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 h4 d5 b4 a5 f6 e5 b6 a4 b7 g3 h5 e4 h6 e3 h7 a3 b5 d3 g7 Kf7 b6 Kg6 f7 d2+ Kf1 d4 Nh3 d3 Nc3 Nd7 b8N Ba6 b7 Qc8 Ne4 Nh6 Nc5 Rg8 h8Q Ng4 Nf2 Bc4 Rh2 Ra6 Rh5 Bb5 Qe2 d1B Ra2 Bd6 f8B d2 Qc4 Bf3 Nd1 Be4 Qe2 Bbd3 Qh6+ Kf7 g6+ Kf6 Na4 Nde5 Nb6 Bb4 Nc6 g2+ Kg1 Bf5 Nd8 Nh2 Qf1 e2 Kf2 Bd6 Ne3 d1Q Qh1 Nf1 b8Q Nc6 Qa8 Ne5 Qc6 Bfe4 Nb7 Bf5 Ra1 a2 Bd2 Bfe4 Qf4+ Bf5 Rb1 a1N Rb3 Bb5 Bc1 Bd3 Ra3 g1B+ Kg2 Qe1 Qh3 Qh4 Rg5 Qh5 Qhf3 Rh8 g8Q Rh7 Rg4 Rc7 g7 Rf7 Rh4 Kg6 Be7 Bfe4 Qge8 Kh7 g8R Bb4 Rg6 Rg7 Rg5 Bg6 Rhg4 Kh6 Bd8 Bf8 Bc7 Be7 Rf5+ Bg5 Bd6 e1B Be7 Bb4 Bd6 Bh2 Kf2 Bc5 Ke1 Bg1 Bc7 Bf8 Bd6 Be7 Bc5 Bf2+
RN4Q1/3Nqrnb/3KQ2N/b1N3rn/R1r1BQ1P/6r1/B1q2r2/b1B3k1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 Kf7 h4 c5 b4 a5 d4 e5 d6 c4 f6 Ke6 f7 Kf5 d5 Ke4 g6 g3+ Ke2 f3+ Kd2 f2 Kc3 a4 b6 g2 b5 a3 Kb4 c3 Kc5 c2 g7 a2 b7 Rh7 b6 Ra3 Nf3 g1R Nbd2+ Ke3 Ng5 e4 Bg2 f1R Nb3+ Kf2 Rh3 e3 Be4 Ne7 g8B e2 d7 e1B d6 Bg7 f8Q+ Nf5 Nf7 Rg5 Nh6 Qe7 d8Q Ba5 Qd7 Kg1 Qe6 Nd7+ Kc6 Rf4 b8N Nf6 d7 Rf2 d8Q Nh5 Nc5 Rag3 b7 Bf6 Qd4 Rf7 Nbd7 Nfg7 b8N Ba6 Qde5 Bd3 Qf4 Bd4 Bf3 Bh7 Be4 R3g4 Ra3 Rg3 Ra4 Bf6 Rb1 a1R Rb7 Ra2 Ra7 Ba1 Ra8 Raa3 Qd8 Rac3 Qe8 Qd8 Kd6 Rc4 Ba3 c1Q Bb2 Qc2 Bc1 Rf6 Bf7 Rff5 Qg8 Qe8 Bd5 Rf6 Bg6 Rf7 Bge4 Rcc3 Bb3 Rc4 Ba2 Qe7+
n1BrQ1qr/n1QQ1b1k/B1B5/K3N2P/N1bq3b/R1q4B/5q1q/5RN1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bh3 Qa4 Bc8 g4 h6 b3 Ba3 Qf4 Bf8 Ba3 Nc6 Be7 gxf4 g5 Nb8 g6 Bf5 Bh4 Bc8 Bg5 hxg5 h4 c5 d4 f5 Kd2 a5 Kc3 f3 e4 f4 g7 Kf7 e6+ Kg6 e5 a4 e7 g4 e8B+ Kh6 b6 g3 b7 c4 h5 g2 b4 f2 d6 f3 b5 a3 Kb4 c3 e6 a2 e7 c2 d5 c1Q b6 Qc2 d7 Qcc7 d6 Qc1 Ba6 f1Q Nc3 f2 Ka5 Qf4 Na4 Nf6 g8B Qh2 Be6 Nd5 Bh3 Kh7 Bf7 Qe2 e8B f1B Bfe6 Nc7 Beg4 Qh4 d8N Be7 d7 Qef2 Nf7 Bc4 d8Q B8e6 Ne5 Bf7 Bc8 Qhd4 Bc6 Bh4 Rf1 a1Q Qd7 Qab2 Ra1 Qb3 Ra3 Rd8 Ngf3 Qbb2 Rc1 g1Q Rf1 Qg8 Ng1 Qc1 Qd6 Nd7 b8Q Nb5 b7 Nb6 Qbc7 Na7 b8Q Qcb2 Qcd7 Qbc2 Qbc7 Qcc3+ Qb4 Rb8 Qe8 Na8 Qcd7 Qcf3 Qbd6 Q3e3 Q7c7 Qec3+ Qb4 Qc1 Qbe7 Rd7 Q8f8 Qgg4 B8b7 Re8 Qed6 Rdd8 Bc8 Qg7 Qfe7 Rh8 Qdd7 Qg8 Qee8 Qcc3+
4N1rR/1kq1KB1R/N1qQb1b1/1q1Q1BBB/4n3/5RQ1/1qP5/2rr2nn w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Ke2 d5 Kd3 Kd7 b4 Kc7 g7 a5 g6 e5 f6 h5 f7 a4 f8R f3 b6+ Kb7 b5 f2 Nc3 a3 Nge2 a2 Be3 h4 Bh6 h3 Na4 h2 Rf3 Nf6 g8B Nbd7 g7 Qc7 Bh3 f1Q Bg5 Ne4 Bf7 Rg8 Bh5 Rb8 Rb1 a1Q Bf5 Qb2 Qd2 Qg2 Nf4 Ra8 Ne6 Rb8 Rhg1 h1N Rbe1 Qf1+ Re2 Qc6 Nc7 Ra8 Ne8 Ra5 Nc3 Ra1 Na2 Rc1 Nb4 Qc7 Na6 Qg2 Bd8 Qg6 Rh2 Qgc6 Ke2 d3+ Ke3 Ka8 Bg5 Kb7 Qa5 d2 Rg4 d1B Rgh4 d4+ Kd3 Nec5+ Kc4 d3 Qd2 e4 Qg2 Qh6 Kd5 e3 R2h3 d2 Qg3 Rh8 g8B e2 Bgf7 e1Q Qd6 Ne5 Qd7 Ka8 b7+ Ka7 Qe6 Rg8 Qd7 Qf1 Qd8 Kb6 b8Q+ Nb7 Qa8 Nd6 Rh2 Ne4 Qd6+ Nc6 Qg3 Nd4 R4h3 Ne2 Qc6+ Ka5 b6 Ng1 b7 Qfb5+ Qc5 Be2 b8Q Bd3 Qa8 d1R Qc6 Qa3 Qcd6 Be6+ Ke5 Qg6 Qd5 Qb4 Bhg4 Qb3 Rh8 Qa3 R2h7 Qb2+ Kf4 Qgf6 Bgh5 Qfc3 Kg4 Q3c6 Kf4 Kb6 Kg4 Qa2 Kf4 Kb7 Ke5 Nc3 Kf6 Qab2 Bh3 Bg6 Bf5 Qb8 Ke7 Ne4 Qd2 Qbc8 Q2d5 Qc7+
B1Nb2BQ/3nB1N1/1q2N1R1/2r1R3/1kqb1b1R/1r1qPK2/2b3QR/n3n3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 c4 a5 b4 d5 h4 f5 c5 g5 e6 f4 h6 a4 h5 a3 e3 d3 c6 Kd6 h7 a2 b6 d2 h6 f3 b7 d4 c7 d3 e7 g4 e8B Bg7 b5 Kc5 b6 Ra7 Bc6 Bd4 Qe1 d1Q Rh4 d2 Nh3 Qc2 Bc4 Bf5 c8N Ne7 Nc3 Ra3 Nd5 Nd7 b8R Qd3 b7 Qb6 Nf6 Rb3 Bg8 Kb4 Ng5 Nd5 Ne8 Qc4 Kg3 f2 Ng7 f1Q N5e6 Bc2 Rb1 a1B Ba3+ Kc3 Bc5 Nb4 Be7 Qfd3 Kf4 g3 Kf3 g2 Ra8 g1B b8Q Ra3 Qb7 Bh2 Ra5 Rb3 Re5 Bb2 Ra1 Bf4 Raa5 Ba3 Rg5 Bb2 Rg6 Bf6 Re5 Ba1 Bd6 Bd8 Be7 Bb2 Bf7 Rf8 Bg8 Rf5 h8Q Rg5 h7 Rf5 Ra5 Rc5 Rh2 Na2 Be4 Kb4 Qd5 Ba1 Qg5 Bd4 Ba8 Nc1 Qg2 Rc3 Rh4 Nb3 Rh2 Na1 Rh4 Qd6 Rh2 Rb3 Rh4 Rc6 Re5 Rc5 Rh2 Rb1 Bf7 Qa3 Qe8 Qc7 h8R Qad3 R8h4 Qb6 Qh8 Rb3 Bg8 dxe1N+
Q7/Nq3n2/knNR3Q/1qb4Q/BP1rB1nR/1N1K1b2/1RR2q1r/1rr5 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 d4 e5 h4 c5 g7 Kc7 d6+ Kb7 b4 a5 h5 a4 d7 c4 h6 c3 f6 a3 h7 c2 b6 c1R f7 e4 d5 e3 d6 g4 Qd5+ Ka6 b7 g3 Kd3 e2 Bg2 e1R Ne2 a2 Na3 f3 Rb1 a1N Qh5 f2 Nd4 Qb6 d8N Nd7 b8Q Qb7 Nab5 Nh6 g8B Nc2 Rh4 Ne3 Be4 g2 Rb2 g1Q N8c6 Nb6 d7 Bc5 d8R Neg4 f8R Nf7 Rd6 Rc4 Qh6 Rec1 Nb3 Ra7 Qa8 f1Q+ Kd2 Qf5 Kd3 Qgf2 Rfd8 Be6 Rc8 Bd5 Qh5 Nd8 Be6 Nf7 Bd7 Rb1 Rc7 Rc8 h8Q Qg5 Bef5 Bf3 Be4 Qf5 Q8h6 Rh8 Qd8 Ra8 Nba7 Rc8 Nca5 Rh7 Ba4 Qd7 Qdf8 Qb5 N5c6 Re8 Bf5 Ree1 Be4 Rec1 Qa8 Rg1 Nd8 Bh1 Rh3 Be3 Qf5 Rgc1 Qhe6 Bf3 Rh1 Rh4 Qh6 R4c2+ Rc4 Bc5 Qfh5 Rh2 Ndc6 Rg2 Rh4 Rh2 Bg6 Re2 Bf5 Re4 Bh7 Qa5 Rcc2 Rc4 Bg6 Qb5 Be4 Rd4+
1kB1rR2/2Nr1R2/1r3b2/1N6/Rnrn1nrQ/1q3Q2/NR1rPb2/1K2BQ2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 d4 Kd7 Kd2 Kc8 Kc2 a5 b4 f5 b6 h5 g5 c5 g6 c4 d6 c3 g7 h4 d5 a4 b5 f4 Rh2 f3 Nh3 g1R Bd2 f2 Rg2 a3 Be1 a2 Na3 Na6 b7+ Kb8 d7 Ne7 g8Q Rh6 d6 Nd5 Qg4 Be7 Ng5 h3 Qf3 h2 Ne4 Qg8 d8N h1R d7 Nf4 Ne6 Bf6 Nc7 Nb4+ Kc1 c2 Nc3 Qb3 d8Q+ Ka7 Rh2 g2 b8R Rh7 Rb6 Rd7 Rh7 Rh6 Rf7 Rd2 Qh8 Re8 Rb8 Rg6 Qh4 Rg4 Rb6 Rh1 Rb8 g1B Bh3 f1R Rd8 Bf2 Rc8 Re7 Rcf8 Re8 b6+ Kb8 b7 Rfg1 Nab5 R1g3 Rb1 a1N Na2 Rg7 Be6 R3g4 Bc8 R7g6 Rb2 Rh3 Qh1 Rhd3 Q1h3 Rd7 Qf1 R2d6 Qd5 Rb6 Qd3 R6g5 Qf3 Rgd5 Nac3 Rd2 Ra2 Qd5 Ra4 Nb3+ Kb2 Nd4 Na2 Rd3 Ka1 c1R+ Kb2 Rcc3 Kb1 Rd2 Qh6 Na6 Re7 Rbd6 Na3 Ka7 b8R Qf7 Rb2 Qb3 Nab5+ Kb8 Qh8 Rb6 Qh4 Nb4 Ref7 Rc4
qQb2n1R/1B1N2k1/B3r3/nQ1B2r1/2RbQ3/r2R1qr1/3q1P2/3BqKN1 w - - 0 1 legal: proof: d4 d5 h4 g5 c4 gxh4 cxd5 b5 a4 Bf5 axb5 Bc8 e4 Kd7 d6 f6 e5 Bh6 d5 Bg7 Bd2 Bf8 Bc3 Nc6 dxe7 Nb8 e6+ Kd6 Be5+ fxe5 e8B Ke7 g4 Kf6 b4 a5 g5+ Kg7 d6 c5 b6 h5 d7 c4 g6 h3 b7 h2 b5 c3 e7 a4 b6 h4 Ne2 e4 Nd2 e3 Rb1 c2 Rg1 h1Q Ra1 c1Q Rg4 a3 Nb3 a2 Ng1 h3 Ba6 h2 Rc4 e2 Nc5 Nc6 b8Q Na5 b7 Qe3 Qc2 Qhf3 Rd1 h1Q Qe4 Rh3 Rd3 Rg3 Qbe5+ Nf6 b8Q Rg5 Qeb2 Qh8 Q2b5 Nh7 Bf7 Rg3 e8B Be7 Bd5 Nf8 Bc6 Bf6 Bcb7 Bd4 Bf7 Qdg5 d8R Qhh1 Bfd5 a1R+ Qb1 Qgf4 Nd7 Ra3 Qb5 Ra7 Ba8 Rc7 B8b7 Rc6 Re8 Re6 Rd8 Re5 Re8 Reg5 Rd8 Kh6 g7 Qd6 g8B Kg7 Rc2 Qh8 Bb3 Qd5 Rc4 Qh6 Bd1 Qhd6 Qa8 Qb8 Qa7 Qa8 Qb8 Nh7 Re8 Qc6 Rc1 Qc2 Bgd5 Qef4 Rh8 Nf8 Qf5 Qb2 Rc2 Qe5 Kd2 e1R Qf4 Re4 Qe3 Qef4 Ke1 Re6 Qe4 Q4e3+ Kf1 Qc3 Rc1 Qcd2 Rc4 Qee1+
k2Kn3/5b1q/B1N2r2/BNRnr1n1/2BrQbq1/4R1r1/4P2Q/3QnB1N w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 Kc7+ Ke5 Kb7 g4 f5 d4 h4 b6 h3 g6 c4 g5 f3 d6 c3 d7 c2 Ke6 f2 d5 f4 d6 b3 g7 h2 g6 b2 Qd4 f3 Qc5 Rh4 Kf7 Rd4 Nc3 b1N Nb5 Qg5 Ke8 Ra3 d8Q Qg4 d7 Ka8 Qd5+ Nc6 Nh3 Nd2 Qe4 Bd6 Ra2 Ra5 Ra3 Bf4 Re3 Ra3 Bb2 c1N Bc3 Nd3 Ba5 Ne1 Qh4 Rc3 d8Q Rc5 Rg1 h1Q Qg3 Rcd5 Qh2 Nb4 Qd7 Bb7 Kd8 Nf6 g8B Re5 g7 Ne8 Bc4 Nd5 g8B Bc8 Qd6 Be6 Rg3 Bf7 Qd7 Qg7 Rg5 Qg2 Bh7 Qg4 Bf5 Qg6 Qd6 Qh7 Bc8 Qhf5 Ba6 Qh7 Bg2 f1R Nf2 Rh1 Bf1 Rg1 Nh1 f2 Qd7 Ndf3 b7+ Kb8 Na3 Ka7 b8N+ Ka8 Nc6 Rg2 Nb5 Rg3 Bg2 f1R Rf5 Rf2 Bf1 Ng5 Qd6 Re6 Qd7 Ne7 Rc5 Re5 Qd3 Nd5 Qe7 Rff3 Qd1 Rh3 Qe6 Rfg3 Qf5 Rh6 Qe4 Rf6
qB3b1r/1RRqk2n/1rB2R2/2K4b/1n2NR2/rP3B1Q/2r1n2n/Q2Q1N2 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 b4 Ba6 b3 axb3 Qd7 Bf1 Qd8 h4 a5 h5 f5 exf5 a4 h6 a3 Rh3 axb2 Rh2 gxh6 Rh4 h5 Rh1 h4 Ke2 h5 Ke3 e5 g4 c5 d4 e4 f4 h3 f6 h4 d6 h2 f7+ Kd7 g5 c4 g6 c3 d5 c2 Kd4 e3 g7 e2 f5 e1Q f6 h3 Nf3 Qe2 Nfd2 Be7 f8R Ra4+ Kc5 Rhh4 f7 Qe8 Bg2 Qe4 Bf3 Ra3 Nc3 b1R Nf1 Nc6 Bf4 Nf6 g8B Rb2 Rc1 Nb4 Qd3 Qf5 Ne4 Rh6 Rg1 h1N Rg7 h2 Qc3 Rb1 Qa1 Ng3 Bh7 Qh3 Bf5+ Kd8 Bd7 h1R Bc6 Bg4 Be5 Nh7 Bf4 Bf6 d7 Bh5 Bb8 Ke7 d8R Be5 Rd6 Rb2 Rf6 Qhd7 d6+ Kd8 Re1 c1N Rf4 Nce2 Rc1 Rh2 Rc3 Rc2 Rc4 Qb7 d7 Ke7 Rc3 Qa8 d8Q+ Ke6 Qd5+ Ke7 Qdd1 Qd7 Rc4 Re6 Rf6 Rh4 Rc8 Bf4 Rc7 Bh6 Rb7 Rd6 Rg4 Bf8 Rgf4 Nh1 Bd5 Rb6 Bc6 Nf2 Rc3 Ng4 Rc4 Nh2 Rc3 Bh6 Rc4 Kd8 f8Q+ Be8 Qg8 Ke7 Qg4 Bf8 Qh3 Bh5 Ba4 Bg6 Rc3 Ng5 Kc4 Rh8 Bb5 Nc6 Ba4 Nh7 Bb5 Na5+ Kb4 Bh5 Rcc7 Rca2 Kc5 Nc6 Ba4 Nb4 Bc6 Rc2+
2qrNb2/Q2N4/P2B1Qnq/2R2n2/2R1Rr1b/k4B2/BNK2b2/2nR1n1b w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 d4 d5 cxd5 c5 g4 hxg4 dxc5 Qd6 Bb5+ Qd7 Bf1 Qd8 Kd2 Kd7 a4 b5 h4 g5 f4 e5 c6+ Kd6 a5 Kc5 c7 b3 a6 Kb4 f6 g3 d6 g2 f5 b2 f7 g4 h5 g3 f6 e4 h6 e3+ Kc2 e2 h7 e1B d7 Ne7 Nf3 g1B Nbd2 b1N Ra5 g2 Nd4 Rg8 h8R Rg4 Nf5 Ng6 Nc4 Bef2 Be2 Bb6 R8h4 Bbf2 Bf3 Nd2 Nb2 Rf4 Ng7 Nc6 Ne8 Bb7 c8B Nf1 R1h2 Qb6 d8R Nce7 Be6 Nf5 Ba2 Bd5 Rg4 Bh4 Rd7 Bgf2 Qd4+ Bc4 Rh1 g1N Re7 Ne2 Re4 Rd8 Qe3 Qe6 Qa7 Qc8 Be3 Nc1 Bb6 Be7 f8N Bec5 Nd7 Bf8 Re3 Bd5+ Bc7 Bb7 f7 Ba8 Rc3 Bd5 Rc5 Ba8 Bd6 Bc6 Na4 Ka3 Rc4+ b4 Rac5 Bb7 Nb2 b3+ Kb1 N1e3 Rd1 Nf1 Nd3 b2 Kc2 Bh6 f8Q b1Q+ Kc3 Qa1+ Kc2 Qh8 Qf6 Bf8 Nb2 Bd5 Be2 Bh1 Bf3 Rd4 Re4 Qh6 Ree1 Rg4 Ree4 Rf4
3kN1qn/1nr4B/2q3QR/B3R1P1/1Q3n2/br1nnQKN/3NRN2/2r4n w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 c5 d4 f5 e4 h5 d6 a5 e5 h4 d5 c4 e6 c3 b6 f4 g5 a4 b5 c2 b7 h3 b6 f3 e7 a3 Bd3 a2 Bh7 Nc6 b8R Ra3 b7 Na5 Bd2 c1N Rh2 Kd7 e8N Ne7 Rc8 Qc7 b8Q Ng6 Qb4 Rb3 Bc3 Qc4 Rc5 Nb7 Nd2 Kd8 d7 Qa6 Rb1 a1Q Rb2 Qc6 Rh1 Qa8 Ra2 Ke7 d8N Rg8 Ne6 Nh8 Rc2 Rg7 Nf4 Kd8 d6 Rc7 d7 Qc8 Nd3 h2 Nf2 Qa8 Ngh3 g1N Re5 Nge2 Rf1 g2 Ra2 g1R Qc2 Rg4 Qg6 Rc4 Ra6 Nf4 Rg1 Qe6 Rg2 Ncd3+ Kf1 Bc5 Rd6 Qa4 Ra6 Qac6 Rb6 Ke7 d8Q+ Kf8 Qa3 Nd6 Qda8 Ke7 Nd1 Qa4 Ba5 f2 Qf5 Rc1 Qf3 Kd8 Qf7 Nb7 Rc6 Qd5 Rh6 Qad7 Qg6 Q7c6 Qa4 Ba3 Qb4 Nh5 Ke2 f1N Rf2 Ne3 Rg2 Ndc5 Kf2 Nf4 Kg3 Qg8 Re2 Ncd3 Ndf2 h1N+
n1R1r3/q1qP2Bq/Q1Q1b2q/B3N1NR/n3KNq1/5n2/1k3r2/2R1QqN1 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kd3 Kf7 e4 Kf6 b4 f1N h4 g5 d6 c5 h5 a5 d7 a4 h6 a3 b6 g3 e5+ Kf5 b7 a2 b5 g2 b6 g4 h7 f2 e6 g3 e7 Na6 b8Q Nf6 e8Q Ra7 b7 Nh2 Qa8 Ne4 b8R Nf3 Na3 Qc7 d8B Nc3 Qde1 Be6 Qec6 Re8 h8N Na4 Nc4 f1Q+ Ke3 Qh7 d4 Rf7 d5 Nc7 Qaa6 Na8 Ne5 c4 d6 c3 d7 c2 Rc8 Qc4 Bd2 c1Q Nhg6 Rff8 Rb1 a1Q Bf6 Qf1 Bg7 Qac3+ Nd3 Qf6 Nge5 Qfh6 Rh3 Qc3 Rc1 Qa5 Bb4 Qc7 Ba5 Rf6 Nc5 Rf7 Ne4 Rff8 Ng5 Rf7 Ne2 g1Q+ Kd3 g2 Rh5 Qh2 Ke3 Qh3 Ng1 Qh4 Bf8 Kf6 f5 Qhf2+ Ke4 Qfa7 N1h3 g1Q Bg7+ Ke7 Nd3 Qgg3 Ng1 Qg4+ Nf4 Qcb6 Qcc3 Kd6 Qf6 Rff8 Qg6 Rf7 f6 Rff8 f7 Qc7 Bac3 Kc5 Ba5+ Bc4+ Be5 Nh2 Qd1 Qgh3 Qe1 Qa7 Ng2 Qg4+ Ke3 Rd8 Bg7 Rde8+ Qe4 Re7 Qee6 Rfe8 f8N Rf7 Ng6 Rf2 N2f4 Nf3 Bac3 Bd5 Qe4 Bc4 Ne5 Be6 Bd2+ Nc3 Qd5+ Kb4+ Qc5+ Kb3 Qcb6+ Nb5 Ba5 Ka2 Qc5 Nc3 Qcb6 Na4 Qc5 Qh8 Ke4 Kb2 Qcc6 Q8h7+
Q2nnB2/NR4r1/1q1B1q2/r1N5/3KR1B1/kqr1r3/n2P1R1q/N1b2BQ1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 e4 Kd7 Ke2 Kd6 Ke3 Kc5 d6 Kb4 e5 f5 b6 c5 b3 a5 g5 h5 d7 c4 e6 c3 g6 c2 e7 h4 e8Q f4+ Kd4 h3 b7 a4 g7 f3 Bb2 c1N Ne2 g1R Rh2 a3 Rf2 a2 Na3 g2 Nb5 h2 Na7 Nf6 g8B h1Q Be6 Rh3 Bg4 Qh2 Bc3+ Ka3 b4 Qe7 d8N Qe6 b5 Qb3 b6 Rg3 Qe4 Ne8 Ne6 Rh3 Rb1 a1R Nc5 Na2 Nc1 Bd6 Rb2 Rb1 Rc2 Rb2 Ba5 Rg3 Rc4 Rc2 Qd5 Rc3 Qg8 Na6 b8B Nac7 b7 Ne6+ Kd5 Be5 Bd6 Nd8 b8R Re3 Rb4 Bb2 Rb7 Rc3 Kd4 Rh3 N1d3 Bc1 Nb4 Re3 Bac7 Rg3 Bf8 Rh3 Nc8 Ra5 Na7 Rg3 Bcd6 Rh3 Re2 f2 Qd5 Rc3 Re4 Rhe3 Nc2+ Kb2 Na1 Ka3 Bd3 f1Q Qe1 Qf3 Bf1 Qf7 Rcb4 Qf2 Rf7 Qfh4 Rf2 Qe7 Qa8 Qf6+ Re5 Rh1 Rb7 g1Q Bge2 Qgg6 Bg4 Rg1 Qd1 Qe7 Re4 Qef6+ Be5 Qfb6 Bed6 Rg2 Qf3 Rg3 Qg2 Qgf7 Qg1 Qf5 Bf3 Rg7 Bg4 Qf6+
5B2/1QRq2RN/QN1bP3/2bRr3/Q4rbQ/1BK1kN1q/r1n3q1/r3q3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 d4 Kd7 Kd2 Kd6 b4 a5 e4 h5 b6 f5 g6 c5 b5 a4 b7 h4 b8N c4 g7 f4 b6 a3 b7 h3 Nf3 h2 Nc3 a2 Rg1 h1Q Qa4 g2 Nd7 g3 Nf6 Ne7 g8Q Qd7 Nh7 Nc6 Ba3+ Nb4 Rc1 a1R Qg7 Qhh3 b8Q+ Qc7 Qf7 Bg4 Qb7 Qd7 Qg7 Re8 Qf6+ Re6 Qh4 Re5 Bd3 Be7 Bc2 Ra8 Bb3 Ra6 Nd1 Ra7 Kc3 Bf8 Ne3 Ra5 Rge1 g1Q Rc2 Qgh2 Rg1 g2 Qa6+ Kc7 Rcc1 Nc2 Bc5 Bd6 Ba3 Rg5 e5 Ra2 e6 Re5 Nf5 Qh1 Ne7 Q1h2 Nc8 Qh1 Rgd1 g1B Nb6 Be3 Rg1 Q1g2 Ne1 f3 Bc5 f2 Nf3 f1R Ba3 Be7 d6+ Kd8 d5 Bc5 Qc6 Ra4 Qcb7 Ra1 Bb4 R4a2 Qa4 Rd1 Ba3 Rd4 Bb4 Rf4 Ba3 Qc7 d7 Qc6 Qba6 Kc7 d8R Qb5 d6+ Kc6 d7 Bed6 Nc8+ Kd5 Nb6+ Ke4 Qe7 Bf2 Qg7 Ke3 Qf7 Bb8 Bf8 Qc6 Qe7 Qb7 Qeb4 Bd6 Qbb5 Qc6 Qd5 Qc7 Qdb7 Be7 Rh1 Nd4 Rh2 Qh6 Qb4 Rff5 Rh4 Bh5 Nfg5 Ke2 Qba4 Bf3 Rg4 Qhh3 Rg3 Bh5 Nf3 Qc6 Re8 Qb5 d8Q Rf4 Rg8 Bg4 Rd1 Bd6 Re7 Qc6 Rc7 Qd7 Rc5 Be3 Kb4 Bf2 Qaa7 c3 Qh4 c2 Rg7 c1Q Rd3 Qd1 Kc3 Nc2 Rc7 Bfc5 Rd5 Ke3 Qa7a6 Qe1+
kN2Bb1R/N1r3Q1/2b3rK/2Qn3n/P1b4R/B2n3R/r3nQ1n/1N2N1r1 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Nb8 h5 Qd6 Bc4 Ra3 Bf1 Qg6 hxg6 Ra8 Kf2 Kd7 Kf3 b5 Kg4 h5+ Kh4 c5 d4 Kc7 g7 Kb7 g6 e5 Kg5 c4 f6 e4 a3 b3 d6 b4 f7 b2 d7 c3 d8Q h4 d5 c2 d6 b3 d7 e3 Qf6 f3 d8Q h3 Bd3 f2 Bb5 f1N Qf5 e2 Qdf6 e1N Qh5 h2 Be8 Na6 Qh7 Nc7 Nf3 Be6 Qc5 Nd3 Ne1 Nd5 Qff2 Ngf6 g8R Nh5 Qg7 Rh7 Rh8 Ra5 Ra2 Ka8 a4 Ra6 Ra3 Rb6 Rg1 h1B Rg4 Nh2 Rh4 Be4 Qgf6 Rc6 g7 Rc7 g8N Rg7+ Kh6 Rg6+ Kh7 Bf3 Ne7 Bh1 Nc6 Bg2 Be3 c1N Na7 Ne2 Qg7 Bh1 Bc1 Bg2 Nc3 b1R Bb2 Rc1 Nb1 Rc2 Bc1 b2 Rb3 Bd6 f8N Bh1 Nd7 Bf8 Nb8 Be4 Nc3 b1R Ba3 Rbc1 Nb1 Ra2 Nf3 Rcg1 Ne1 N5b4 Rc3 Bc6 Rb3 Bc4 Rc3 R6g3 Kh6 Nd5 Rb3 Ndc1 Rf3 Nd3 Re3 R3g2 Reh3 Rg6+
Q1B1Bb1k/3RQ1N1/Q5r1/1bPbBR1K/1Nnr4/1R3q1b/4rR1r/r3r3 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 f4 hxg5 Nc6 g6 Nd4 g5 Nf5 d4 cxd4 exf5 Bb7 f3 Bxf3 Ra4 Bb7 Ra1 Bc8 Ke2 a5 Kf3 e5 Kg4 d5 b4 e4 c4 a4 c5 f3 b6 a3 g7 Kf7 g6+ Kf6 b5 f2 b7 d3 b8Q d4 b6 a2 b7 h6 Kh5 d2 Ba6 f1B Nh3 d3 Nf4 e3 Nc3 e2 Qa4 e1R Ne6 d1R Bf4 d2 Rh2 Re2 Qc7 Qd3 b8R Rde1 Rf2 d1R Rb3 Ne7 g8B Nd5 g7 Ne3 Bf7 Nc4 g8Q Qd5 Qg2 Rd4 Rd1 a1R Be8 Rb8 Na2 Rb6 Nb4 Qf3+ Qg4 Bh3 Ng7 Bd7 Bc8 Bb5 Qa8 Rc6 Qb6 Rh7 Qba6 Rce6 Kh4 h5 Bc7 Rh6 Qge4 Rg6 Bf4 Rh1 Bb8 Rh2 Be5+ Ke7 Bc6 Kf7 f6 Kg8 f7+ Kh8 Be8 Re1 Bf4 Re5 Qeb7 R5e2 Qe7 Rge6 Kg5 h4 Be5 Rh6 Bg4 Rg6+ Kh5 Bf1 Rd2 h3 Rdd3 Rg2 Rd2 h2 Rd1 h1B Rdd3 Qe3 Bc8 Qg3 Rf5 Rgf2 Rd2 Bh3 Rd1 Rh2 Rf2 Rdg4 Rd7 Rd4 Qee6 Bd5 Qed6 Be7 f8R+ Bg8 R8f5 Bd5 Qe6 Bf8 Qe7 Qf3+
qn3b2/4QR2/3NBQbk/1nBBQ1nn/n6N/4nN2/n2P1b1R/K1qN4 w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 Bh3 dxc4 Bg2 b5 axb5 f3 Bh3 a6 Bf1 f4 h3 h5 Na3 g5 Nb1 a5 Qa4 Rh6 Qd1 Rf6 h4 Rf5 gxf5 g4 Qc2 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Ba3 Qb3 Be7 Qd1 Bf8 e4 Kf7 b4 Kg7 b6 c5 b7 h4 e5 f2+ Ke2 a4 e6 h3 g6 h2 e7 c3 e8N+ Kh6 b5 c2 f6 g3 b6 a3 f7 a2 g7 f3+ Ke3 g2 Be2 f1Q Nc3 f2 Bf3 c4 Bd5 Nf6 Kd4 Bf5 g8B Ne4 Nf3 g1B Ba3 c1N Bc5 Bg6 Qe2 Nd3 Nd1 c3 Nd6 Ng5 Qe7 c2 Kc3 c1N Rb1 a1N Rb3 Ne5 Kb2 Nec6 Ra3 Qe1 Ra7 f1N Be6 Nab3 Qf6 Nd7 b8Q Na2 b7 Ne3 Qc7 Bf2 b8Q Nbd4 Ka1 Nb6 Qce7 Na4 Qb2 Nb5 Qbe5 Nb8 Bd5 Bg7 f8N Qa5 Rb7 Qa8 Bge6 Qf1 Nh7 Bf8 Nh4 Nf7 Ng5 Qe1 Rf1 h1N Ngf3 Ng3 Rh1 Nh5 Rh2 Qg1 Qd8 Ng5 Rf7 Qf1 Qd7 Qc4 Qde7 Qc1+
rbk1K2r/1q6/B1rQN2q/Nn1Q1P2/R5n1/BB3qRp/b2N3Q/2n1B3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 c5 Kf4 h5 Kg5 e5+ Kg6 c4 Kf7 c3 g4 e4 f4 e3 d4 c2 d6 h3 f6 e2 b6 e1N f5 h4 g5 h2 g6 b3 d5 h3 b7 b2 g7 Ra6 Ne2 Nd3 Nf4 Be7 Nd2 b1Q Ba3 c1Q Ne6 Ra5 Rg1 h1R Rg3 Nc6 b8Q Qc3 Ra2 Nc1 Ba6 Qb5 Bb4 Rh5 Ra4 Nd4 Qe2 Qb3 Qh2 Qdb6 Qa8 Bd8 Kf8 Rd1 f7 Nh6 g8B Qf3 Qb8 Q6c6 Qb6 Bb7 Bc3 Kc8 d7+ Kb8 d6 Ng4 Qc5 Bc7 d8N Kc8 Qd5 Rh7 Bb4 Qcb6 Nc6 Bb8 Ke8 Re1 f8B Re2 Nb3 Rc2 Be1 Qb4 Nd2 Nb5 Ra2 Ra3 Na5 Rc6 Be7 Rb3 Ra4 Ra3 Bf6 Qbe3 Bb2 Qh6 Bf7 Ra1 Ba3 Rc4 Bh5 Qhf4 Qc6+ Rc7 Nab3 Q3e3 Bb2 Nf2 Bd1 Nc3 Bb5 Qh6 Ra6 Ng4 Ra5 Ra4 Ba3 Qf3 Bc2 Ba6 Qd5 Rh7 Bd1 Rc6 d7+ Kb7 Bf1 Bc4 d8Q Qb5 Q8d6 Kc8 Bfe2 Qb7 Ra7 Bd3 Bf1 Bb1 Bb5 Ra5 Bf1 Ba2 Bc4 Rb5 Ra4 Ra5 Bd3 Ra7 Na5 Ra8 Ba6 Nb5 Bb3 Rh8+
5Q1b/K5N1/PN1Bn1n1/r4qBn/q1q4r/b1b1RB1k/Rp1QR2N/3B4 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Kf2 Kf7 a4 h5 d4 e5 g6+ Kf6 g7 Kg5 d6 b5 f6 c5 d5 c4 a5 b3 d7 e4 d6 c3 f7 b2 Bg2 b4 Na3 b1Q Qd2 c2 Nc4 b3 Rh2 h4 Bf3 h3 Ba3 Kh4 g5 c1B g6 Bb2 Nb6 Qe8 d8B+ Ne7 g8B Nd7 g7 Nc5 d7 Ne6 Ra2 e3+ Ke2 Qf5 Bd6 Ra7 Bh7 Bc3 g8R b2 Rg3 Bf6 Rf2 h2 Bg6 h1N Bgh5 Ng6 a6 Rc7 B8e7 Rc5 d8N Ra5 Bhg4 Qa4 Rfg2 Qh5 Kd3 e2 Rf2 e1B Re2 Qg5 Bh5 Bc3 Bf6 Bg7 f8Q Bf2 Bfe7 Bc5 Bhg4 B5b4 Kc4 Rh5 Bf6 Bh8 Bfe7 Nc7 Ne6 Ba3+ Bb4 Qf6 Ng7 Ne6 Bd6 Kg5 Be7 Rh4 Rh3 Ng3 Bd8 Qd1 Bd6 Nh5 B8e7 Nc5 Kd5 Ne6+ Kc6 Qa4+ Kb7 Bcb4 Bg2 Bc3 Rhe3 f3 Ka7 f2 B2f3 f1Q Bd8 Be5 B8e7 Kf4 Bd8 Qf5 Bg5+ Kg3 Bg2+ Kh2 Nf3+ Kg3 Bh1 Qc1 Bg2 Qcc4 Bh1 Nf6 Bh5 Kh3 Nh2+ Bg3 B1f3 Be5 Rg2 Bc3 Rf2 Ne4 Bd1+ Ng3 Bhf3 Nh5 Rg2 Bd4 Rge2 Bc3
q1b2k2/1B5R/p1r2N2/QRb3r1/b1RPB2Q/Bn3Q1r/1QN1K2n/1qn5 w - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 c4 f5 exf5 g5 cxd5 gxh4 a4 cxb4 axb5 Qd6 Ke2 Qb6 Ke1 Qd8 f4 e5 d4 h5 g4 a6 d6 h3 d7+ Kf7 b6 h2 b7 e4 g5 e3 g6+ Kg7 f6+ Kh6 g7 b3 f7 e2 f5+ Kh7 f6 h4 Nc3 b2 Qd2 b1B Ne4 h3 Ra4 Bb4 f8Q Bc5 f7 Nc6 b8Q Nf6 Bg2 Bc2 Ba3 Ng4 Rc4 Ba4 Nf3 Na5 Qbb2 Nb3 Qa5 Rg8 Nf6+ Kg6 Qe7 Rb8 f8R Rb6 Qe3 Rc6 Rf7 Qe8 d8Q Qf8 Rf1 h1R Rb7 h2 Rb5 Kf7 Rg1 Rh8 g8B+ Kg7 Qe4 Rh5 Bd5 Rg5 Qd3 Qe8 Be4 Kf8 Qd1 Ne5 Kf2 e1N Ke2 N1d3 Ne1 Ng4 Nc2 Ndc1+ Ke1 Rh5 Qf3 Rh3 Rf1 Rg1 Kd1 h1Q Re1 Nd3 Ke2 Nh2 Rb1 Re6 Rb7 Rb6 Rh7 Rc6 Qdc7 Qd8 Qcg3 Qb6 Qh4 Qb8 Bf1 Rg5 Bg2 Qa8 Qc1 Na1 Rb5 Nb3 Qb2 Qb1 Qfg3 Rc7 Bb7 Rc6 Be4 Bg4+ Qf3 Ndc1+ Kf2 Bc8 Ke1 Na2+ Ke2 Nac1+
rb1B4/1Pn2N1b/r7/Q3RbB1/1Bp1bN2/qBQ5/1rnb2KQ/1kNR4 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Ra5 g4 Kd7 f4 Kd6 Kf2 e5 f6 c5 b6 h5 f5 h3 b7 e4 g5 h2 f7 h4 g6 e3+ Kf3 h3 g7 c4 f6 b3 Nd2 e2 Qc2 e1B Ne2 b2 Nb3 b1B Bg5 Nh6 g8N Qe7 Nf4 Na6 Be2 Ra4 Rf1 h1R Qh7 Bd3 Bd1 Bg7 f8Q h2 f7 Nf5 Nh6 Bd2 Kg2 Be5 Qfg7 Re8 f8B Ne3+ Kf2 Ra5 Re1 Bcf5 Kg3 Ra8 Nf7+ Kd7 d6 Kc6 d5+ Kb5 d7 Kb4 d8Q Kc3 d6 Kb2 d7 Qa3 Rb1+ Ka2 Qb6 Bb8 d8B Nc7 Bb4 R5a6 Qa5 Rf1 Qh5 Bh7 Qh3 h1B Qc3 B1e4 Qh2 Bef5 Re2 Rh1 Bc2 Rc1 Bd1 Rc2 Kf2 Nf1 Re5 Rb2 Bc2 Ne3 Rd1 Rd6 Kf3 Rda6 Nc1+ Ka1 Ba4 Nc2 Bb3 Kb1 Kg2 Bde4+
3B4/1b1R1qb1/rQ1R2nN/r2Pp1n1/R6Q/rB2N1n1/RQb1k3/K2bN3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 Kd2 Kf6 Kc2 c5 Kb2 e5 f4 h5 g4 c4 b6 h3 d6 h2 d7 h4 g5+ Kf7 g6+ Kf6 g7 h3 d5 b3 b7 Rh4 Nf3 Rg4 Ra4 c3+ Ka1 c2 Qd4 Ra5 Na3 Nc6 b8Q Bb7 Qb6 Qe8 d8Q+ Ne7 Ne1 Rg3 Nc4 Qf7 Ne3 Rg6 Rg1 h1N Bc4 h2 Rg2 Ng3 Ba3 h1B g8N+ Kg7 Rd2 Bf3 Nh6 Nd4 f6+ Kh7 f5 Bg7 Bd6 Bd1 Bc7 Nf3 Rh2 Ng5 Re2 Qg8 f7 Rd6 f8R Ng6 f6 Qf7 Re8 Rc6 Re6 c1R+ Kb2 Ra1 Rd6 Ra3 Rg2 Qd7 f7 Qf5 f8R Qf7 Kb1 b2 Rd7 Re6 Bb3 Rd6 Qd4 Rda6 Qh4 Nh8 Bb6 Kg6 Qdc7 Kf6 Rfd8 Ng6 Bc4 Rc3 Bb3 Rd3 Ka2 b1B+ Ka1 Bbc2 Qc5 Rc3 Qa3 Rd3 Qb2 Qe6 Re7 Ba8 Rd6 Bb1 Bc4 Ra3+ Qa2 Bd3 Rb2 B3c2 Bd8 Bc6 Qb6 Bb7 Qh2 Nh3 Bb3 Kg5 Qh1 Qf7 Red7+ Kh5 Qe4 Ng5 Nhg4 Kh4 Nh6+ Kh3 Qeb4 Kh2 Qh4+ Kg1 Bc4 Rd3 Qb1 Kf2 Rba2 Rc3 Q1b2 Ra3 Bb3 Ke2
Bb5n/n2R4/3RP1qb/1b1Qp1N1/2R1b1rN/1kqr2QQ/bN4B1/K1R5 w - - 0 1 legal: proof: d4 d5 h4 g5 c4 gxh4 cxd5 b5 a4 Bf5 axb5 Bc8 e4 Kd7 d6 f6 e5 Bh6 d5 Bg7 Bd2 Bf8 Bc3 Nc6 dxe7 Nb8 e6+ Kd6 Be5+ fxe5 Kd2 Kc5 Kc3 a5 e8B h5 f4 c6 g4 h3 b4+ Kb6 Kb2 a4 f5 h2 g5 h4 d6 h3 f6 c5 d7 c4 f7 Bh6 f8N Qe7 d8R Bd7 g6 Qf6 g7 Qg6 Nd2 Ne7 g8Q Nbc6 Ngf3 Na7 Rc1 a3+ Ka1 c3 Nh7 c2 Nhg5 a2 Bg2 Bf8 Qh7 Rg8 Nh4 Rc8 Qe1 Rc3 Qg3 Rd3 Rhd1 h1B Qh5 Bc6 Rd7 h2 Qhg4 Bd5 Q4h3 Bc4 Ba8 Bc6 Rd6 h1B Bd7 Bb3 Nc4+ Kc7 Nb2 Kb6 Bc8 Be4 Bcb7 Bh6 Ngf3 Be3 Ng5 Bc5 Rd7 Bd6 Rd2 Rd5 Rd4 Bb8 Rc4 Rd3 Rdd4 Be8 Rd7 Bf5 Bg2 Be4 Rd1 c1B Re1 Be3 Rec1 Qg7 Rd6+ B8c6 Rd7 Ng6 Rd6 Nh8 Rd7 Qg6 Rd6 Kc7 b6+ Kc8 b7+ Kc7 b5 Kb6 Rd7 Ka5 b6 Bb5 Rd6 Bc5 Rd7 Bf8 Rd6 Bh6 Rd7 Bd6 b8Q Bc7 Qc8 Bb8 b7 Rg7 Qc6 Rg8 Rc5 Kb4 Qd5 B3c4 Rcc7 Kb3 Rc8 Rf8 Rc6 Rf4 Rcd6 Rg4 Rb6 Bd6 b8R Bc7 Re8 Bb8 Rbd6 Bf5 Rc8 Kb4 Na4 Be4 Kb2 a1Q+ Kc2 Qd4 Kb1 Bb3 Nb2 Qc3 Ka1 Ba2 Rc4+ Kb3
1R3K2/n1Bb2p1/Q1q1B1R1/2nqB1b1/6Q1/1Rb5/rP2R1Qr/k1N1bb1N w - - 0 1 legal: proof: g4 c5 d4 h5 e4 hxg4 a4 b5 axb5 f5 exf5 d6 c4 d5 cxd5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 h4 e6+ d6 d3 f4+ Ke4 h5 d2 h6 e5 f6 a4 f5 a3 f7 a2 b6 g3 f6 g2 h7 Ra6 b7 Qe7 Rh6 Ra4 Qg4+ Ke3 Nh3 g1B Rg6 e4 Nc3 Qd7 Bc4 Qe6 Ne2 Be7 f8Q Nc6 b8R Na7 f7 Bg5 d7 Nf6 d8B Bd7 Nf2 Ra3 Rb1 a1Q Nh1 Qa2 Bc7 Qb3 Rb7 Ra2 Qc8 Bh2 f8R Be5 Qa8 Bc3 Rfb8 Qa4 Bd5 Kd3 Rb3 d1B B1f4 Kc2 Bfe5 e3 Nc1 e2 Bc4 e1B Qag2+ Be2 Bd5 Qg8 Kd6 Qb5 Ke7 Qc6 Be6 Qd8+ Kf7 Ne4 Ra1 Nc5 Rb1 Re8 h8Q Rg8 Qhh4 Rh8 Qhf2 Rh2 Qf6 Bc8 Qff1 Qdd5 Kf8 Bd7 Ra1 Ra5 Ra4 Kb1 Re4 Ka1 Re3 Bc4 Qd3 Bb5 Re2 Ra2 Qdc4 Ba4 Qa6 Bb5 Re3 Bf1 Re4 Bb4 Re2 Bbc3
Qnrbk3/3q1r1R/3Q3R/2b4r/1Q3NK1/rPpbn2N/3BBRNQ/7q w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 b4 Ba6 b3 axb3 Qd7 Bf1 Qd8 h4 a5 h5 f5 exf5 a4 h6 a3 Rh3 axb2 Rh2 gxh6 Rh4 h5 Rh1 h4 Ke2 h5 Kf3 e5 d4 c5 g4 c4 d6 c3 d7+ Ke7 f6+ Kf7 g5 h3 g6+ Ke6 d5+ Kd6 g7 h2 f7 Ke7 d6+ Ke6 Ra7 h4 Qe2 h3 Bd2 e4+ Kg4 e3 f4 Qc7 d8Q Qc4 d7 Bc5 f8Q Qa4 Na3 b1R Nc2 Ne7 Ne1 Ba6 Ng2 Bd3 g8Q+ Kd6 Qf2 e2 Rc7 e1B Be2 Qb5 f5 Ra3 f6 Rd1 f7 Qb7 Qe3 Bh4 Qf2 Rf1 Qf4+ Ke6 Qb4 Nf5 Qh6+ Bf6 f8R+ Kd6 Qgg6 Qa7 Qc8 Ke7 Qcb7 Qa4 d8N+ Qd7 Qa8 Bh4 Rf7+ Ke8 Ne6 Bd8 Nef4 Rf8 Rh7+ Rf7 Qd6 Re1 Nf3 Rd1 Rf1 h1R Rc6 h2 Rf2 Rdf1 Ng5 Re1 Bd1 Re5 Ra6 Rg1 Rc6 h1Q Ngh3 Rge1 Ra6 R1e4 Qh4 Rc4 Be2 Ng3+ Qe6+ Bce7 Ng1 Rh5 Qh2 Nf5 Nh3 Rc8 Qed5 Bf8 Rah6 Bc5 Qd6 Ne3+
1Nr1qn2/1NrN3b/2N3b1/BQ5n/Qn1p1BRQ/K5Rq/1P4r1/4k1rB w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Nf3 d3 Kd2 d5 Kc3 Kd7 Kb4 Kd6 c4 e5 g7 a5+ Ka3 Kc5 g6 h5 f6 e4 f7 a4 f8N d2 b6 d4 b7 h4 Bd3 e3 Ka2 e2 Be4 e1R Rg1 h3 Nc3 h2 Ne5 h1R Nd5 a3 Nb4 f3 Qa4 d1B Bf4 Nf6 g8Q f2 g7 f1Q Qh7 Ra7 g8Q Rh2 Qh4 Nh5 Rg4 Bc2 Qgg5 Qh3 Bh1 Nd7 b8B Bh7 Bc7 Rg1 Ba5 Rhg2 Rf1 Bb7 Rf3 Bbe4 Rfg3 Beg6 Kb3 a2 Ka3 a1N Na6+ Kd6 c5+ Kd5 c6 Ke4 c7 Nc2+ Ka2 Qe7 c8N Rc7 Nc6 Nb4+ Ka3 Rg8 Nab8 Qe6 Be3+ Kd3 Nd6 Ke2 Qgb5+ Ke1 Bf4 Qe5 Nb7 Qh8 Ne6 Rgc8 Nec5 Qg8 Qd3 Qf7 Qdb5 Nf8 Ncd7 Qe8
7B/N1Q1r1R1/1NK5/N4bQB/qNbp4/1QqqnR1P/1r6/Bkb2qn1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 g5 f4 d5 h3 d3 b6 d4 f6 g4 b7 g3 h6 g2 h7 d2 f7 b3 f5 b2 f6 Ra7 Qb3 d1B Ra3 Be2 Nf3 g1Q Nc3+ Kd3 Nd2 b1Q Bb2 Bg4 Ba1 Nc6 b8Q Bf5 Qc7 Bh6 f8N e5 f7 e4 Nd7 e3 f8Q Qe8 Qf6 Nge7 Nb6 Ne5 Qg5 Nf3 Kd6 Qg2 c5 Qa4 c6 Rb8 h8B Nd5 Ndc4 Ng1 Na5 Qf3 Bg2 Qff1 Bf3 Kd2 Bh5 Kc1 Rh2 Bc4 Rg2 Qbd3 Rg4 Rab7 Rg2 Re8 Rg3 Re7 Na2+ Kd2 Nb4 Kc1 Rf3 Rb8 Ra2 Rb7 Rd2 e2 Kc5 e1Q Rg2+ Qee3 Qg4 Ra7 Qe5 Qed2 c7 Qe8 c8N Bg5 Nb7 Ra2 Na5 Q2c3 Qc7 Qa4 Na7 Rb2 Qh4 Bd2 Rg7 Ne3 Qg5 Kb1 Kd6 Bc1 Kc5 Qa2 Kc6 Qa4+
Rn2N3/3r1b2/5K1k/3pNb1n/Pn1bBR2/2qRN3/n2q1rB1/Q2QQ1R1 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 f6 h6 g4 Nc6 g5 Ra4 f5 Ra8 fxg7 Nb8 g6 Ra4 Bf4 Ra8 Bg5 hxg5 Kd2 e5 Ke3 d5 a4 b5 h4 b3 c4 b4 h5 e4 Kd4 b2 Ke5 g4 h6 e3 f6 g3 f7+ Ke7 c6 g2 c5 b3 c7 e2 h7 e1N c6 Qd7 Na3 b1B Nc2 b2 Nf3 g1N Bg2 Ra7 Rh3 Ne2 Ne3 Nf6 g8Q Nc3 g7 Bg6 Rc1 b1Q Rg3 Ba6 c8B Qa2 c7 Qc6 Bf5 Bc8 Be4 Bcf5 c8R Nh5 Rb1 Qd2 Ra1 Na6 Ra8 Nc2 Ra3 Na2 Rd3 Ncb4 Rg5 Kd7 Rg4 Bc5 f8R Nb8 Qe6+ Kc7 g8N Bf7 Qe8 Bb6 Nf6 Qcc3+ Nd4 Rg8 h8Q Rb7 Qe6 Ba7 Ne8+ Kd8 Rf4 Rd7 Rf1 Rg4 Rg1 Rf4 Qg7 Rf2 Qh8 Nf4 Kf6 Bb6 Qe5 Bc5 Nf3 Bd4 Qh4 Nh5+ Kg5 Re2 Qhe1 Rf2 Qh8 Ke7 Ne5 Bg8 Rf6 Bf7 Qg7 Bh3 Rf4 Bf5 Qf6+ Kf8 Qa6 Ng7 Kf6 Kg8 Qc4 Kh7 Qa1 Kh6 Qb3 Ba7 Qbb1 Bd4 Qbd1 Nh5+
3B2RN/1b4q1/2Rq1p1Q/nb2QrP1/q3KQ1R/4N3/1qN5/Bnr1bNk1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 h4 Bf8 b4 g5 hxg5 a6 e3 Qd7 b6 Kd8 b5 Ke8 b7 Qd6 b6 Qd8 Bb5+ axb5 Kf2 Ke7 Kf3 Kd6 d4 h5 g4 c5 g6 c4 g7 c3 g5 c2 e4 b4 Qf1 b3 Ra6 f6 Bb2 c1Q Rh3 h4 Ba1 b2 Na3 b1Q Ne2 Qc6 Ng3 Qa4 Nc2 Nc6 Qh1 Na5 Nf1 Ne7 g8R Qb2 b8Q+ Qc7 Rh2 h3 Nce3 Bb7 e5+ Kd7 e6+ Kd6 Ke4 f3 Nc2 f2 Qe8 Qd8 Qb5 Rc8 Qc4 Rc5 Qe2 Nec6 e7 Nb4 Qe3 Na2 e8N+ Ke7 Qe2 Qd6 Ng7 Kd7 Nf5 Nc3+ Kf3 Rb5 Qe5 Nb1 Ke4 Rh5 N5e3 Rh6 Rg2 h2 Rg4 Rh3 Rf4 Rc5 Rg4 Rf3 Rh4 Rf5 Qf4 Qe7+ Qe5 Qg7 Qf4 Rc6 d6 Ke6 d7 Bb4 d8B Be1 Qe5+ Kf7 Qf4 Kg6 Qe5 Nc4 d5 Na5+ Kd3 Rc4 d6 Rc5 d7 Rc8 Qg2 h1Q Qgh2 Qhc6 Qh3 Ba8 b7 Qd6+ Rd4 Rc7 b8Q Bb7 Rc6 Rc8 Ke4 Rc7 Qg2 Kh5 Qf3+ Kh4 Qff4+ Kh3 Qa7 Qe6 Qc5 Rc8 Qf8 Qd6 Be7 Qaa3 d8N Qa4 Nf7 Rc7 Nh8 Rc8 Nc4 Kg2 N4e3+ Kg1 Bd8 Rc7 Qf7 Rc8 Qh5 Rc7 Qh6 Rc8 Nd2 f1B Rb4 Bfa6 Ndf1 Bb5 Nd4 Bd3+ Kf3 Qh2 Rb2 Be2+ Ke4 Bba6 Rcb6 Rc2 Rc6 Rc1 Rbc2 Beb5 Rf2 Qh4 Rh2 Qf2 Rh3 Qb2 Rh4 Nc4 Ndc2 Bb7 Qc3 Na5+ Qd4 Bc4 Qde5 Bb5+
5bn1/1Bq2r2/1kPnNNbQ/r1n4p/1KR3QR/1NQ2bq1/6B1/1bR2Q2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 b5 exf5 Na6 Ba3 Bh6 axb5 Bf8 b6 Nb8 b5 Ba6 Bc5 Bc8 Bb4 axb4 Kd2 h5 c4 d5 f4 Kd7 g4 e5 b7 Kc7 b6+ Kc6 f6 d3 f5 b3 Kc3 e4 g6 e3 c5 b2 g7 d4+ Kb4 d2 g5 d3 f7 e2 f6 e1N g6 Qd7 Qg4 d1Q Nd2 b1B Ne2 Nf3 Nf4 Nh4 Nb3 d2 Bg2+ Qf3 Ne6 Bf5 Rac1 Bd6 f8Q d1B f7 Nh6 g8N Ra1 g7 Be7 Nf6 Qc7 g8B Nd7 b8R Bb1 b7 N4f5 Rh4 Rh7 Ra8 Ra7 b8Q Ra5 Ra7 Ba6 Qbc8 Bad3 Qfg7 Be4 f8Q Nd6 Bf7 Ng8 Qh6 Qg3 Be8 Ra3 Ra4 Bdf3 Bg6 Bec2 Bd3 Rf7 Ba6 Nb8 Kc3 Bf5 Rc4 Ra5 Bb7+ Kb5 c6 Kb6 Kb4 Nd7 Qd4+ Nc5 Qc3 Bg6 Qd7 Ne8 Qd1 Nd6 Qfg7 Bgc2 Qg4 Bg6 Qf1 Bf8
1n1b2Q1/1n6/1p1B3Q/1RqPb2K/1r1qR1nN/2Qb1RBk/2NNQ2r/2n5 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Rh7 Bh3 Bh6 fxg5 Rh8 g6 Bg7 g5 Bf8 Bg4 hxg4 Kf2 Kd7 Kg3 c5 d4 e5 h4 c4 a4 b3 g7 b6 g6 c3 d6 c2 h5 b2 f6 Ke6 Kh4 Kf5 d7 g3 h6 g2 a5 e4 h7 e3 d5 e2 a6 e1B+ Kh5 Bg3 f7 Bh2 a7 Bg3 Bf4 c1N Nd2 b1Q Ngf3 g1N Qe2 Nc6 Ra4 Qf6 d8N Qd4 Rh3 Be7 f8B Nb3 Ne6 Bd8 B8d6 Nh6 g8Q Ba6 Qg7 Ng4 Qh6 Nc5 g7 Nb7 g8Q Qbb4 Bfe5 Bh2 Bg3 Qbc5 Rb4 Rc8 a8R Bd3 Rb5 Nb8 Ra4 Rc7 Bh4 Be5 Bg3 Qe3 Re4 Qed4 Ne1 Re7 Nf4 Re8 Ng6 Rf8 Qg2 Ne2 Nc2 Nc1 Qe2 Bf4 Re6 Re8 Re3 Re4 Rh4 Be5 Rf3+ Rf4 Na1 Nh2 Qhg7 Qb2 Kh6 Qbc3 Qc7 Qf2 Nc2 Qb4 Qc3 Qbc5 Rh5+ Kg4 Rf5 Rb4 R5f4+ Kh3 Re4 Qfd4 Qf7 Re8 h8Q Re7 Qfg8 Ng4+ Kh5 Rf7 Rf2 Rb1 Qh6 Rb4 Rf1 Rf2 Nh4 Rg2 Rf3 Rh2
Q1qn2KR/R1bNB3/P3k3/3rp3/1r4RR/1nqb1Q2/B1q1qB2/1N1Qb3 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 Ke2 Kf7 Kd3 b5 Ke4 g5 Ke5 e6 f4 d3 a4 b3 h4 b4 f6 d2 d6 b2 h6 b3 a5 g4 h7 g3 f5 g2 d7 Ba6 h5 Bb7 h6 Bb4 Rh4 Be4 Nf3 g1B Bc4 Bb6 Rg4 Qc8 d8B Bd3 Be7 Na6 Ra4 Nc5 a6 Ke8 f7+ Kd7 f8Q Rb8 f6 B6a5 f7 Bc7+ Bd6 Ne7 Kf6 Bba5 Kg7 Nc6 Be7 Nd8 Qg8 Rb4 f8Q Bg3 Qf4 Bc7 Qe4 Bf2 Qa8 Bfg3 Qf7 Be1 Rh4 Re8 h8R Rf8 Qh5 Rf5 h7 Re5 Kg8 Rd5 Nh2 e5 Ng4 Ke6 Nf6 Rb7 Nd7 Rb4 Qdf3 d1Q Be3 Qc2 Bf2 Qe2 Nd2 b1Q Rg4 b2 Ba2 Qc2 Nb1 Rb7 Raf4 Qc4 Rf7 Qc3 Qhh1 Rb4 Qg1 Bd2 Qd1 Nb3 Nb6 Nc1 Bg5 Bc4 Na3 Bb8 Ra7 b1Q Be7 Qed3 Nd7 Qbc2 Nb1 Qe3 Kf8 Qe1 Rhg8 Qe2 Rh4 Nb3 h8R Be1 Rgg4 Bd3 Kg8 Bc7
2R3NB/1R2b3/p1RRQPnN/2B2b1q/Qn1bQr1q/4bB2/5r2/r3k2K w - - 0 1 legal: proof: b4 b5 e4 c5 g4 d5 c4 f5 exf5 h5 cxd5 hxg4 a4 cxb4 axb5 Bd7 Bc4 Be6 Bf1 Bc8 h4 Kf7 d4 Kf6 f4 e5 Kf2 g5 Kg2 a6 b6 e4 d6 e3 d7 b3 h5 g3 h6 e2 b7 e1R h7 b2 d5 g4 d6 Re5 Nf3 Qa5 d8Q+ Re7 d7 Bh6 Nh2 Qb5 Qb6+ Nc6 b8Q Rf7 d8R Bf8 Be3 Be7 Nc3 b1Q Q8b7 Q1b4 Be2 Be6 Rd7 Raf8 Bc5 Q4a4 Rg1 Nb4 Rd6 Qe8 Re1 Qeb5 Kg1 g2 Bf3 Qe2 Rc1 Qe5 Kf2 g1B+ Kg2 g3 Kh1 Be3 Re2 Bd4 Rb2 Qe2 Qe4 Qeb5 Nf1 Qe8 Ne3 g2+ Kh2 g1B+ Kh1 Qa5 Qa4 Qd8 Nf1 Bge3 Nh2 Rg7 Qbc6 Rg2 Qc8 Rf2 Nd5+ Kf7 f6 Bh3 Ng4 Qb5 Qee6+ Kg6 f5+ Kg5 f7 Kh4 Nh6 Kg3 Qe4 Qba5 Qce6 Qb5 Bd1 Rf4 Be2 Kf2 Bf3+ Qe2 Rc3 Ke1 Nf6 Qd1 Bg2 Qh5 Bf3 Nc2 Rb7 Nb4 Ba7 Qh4 Rcc6 Qa5 Bb6 Qb5 Bc5 Qe2 Bg2 Qeh5 Bf3 Bd8 Qea2 Ne7 Nfg8 Ng6 Qc4 Be7 Qce6 Rc8 f8R Rd8 Nf6 Rg8 Re8 Rf8 h8B Rc8 Nfg8 Rb8 Rbd7 Rb5 Ra8 Ra5 Rb7 Rf7 Rac8 Rf6 Qac2 Ra1 Qa4 Rg4 Bd1 Rg2 Bf3 Rf2 Qea2 Re6 Q2b3 Re5 f6 Rf5 Qc4 Rf4 Qce6 Bf5+
2Q2Q1b/bQB1KNRp/2NrP2B/3r1bq1/2Nn1B1k/3N1n2/1qq5/1bR5 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 h4 Bf8 b4 g5 hxg5 a6 e3 Qd7 b6 Kd8 b5 Ke8 b7 Qd6 b6 Qd8 Bb5+ axb5 Kf2 Ke7 Kf3 c5 Ke4 f5+ Ke5 b4 g4 b3 d4 f3 d6+ Kf7 g6+ Kg7 d7 f2 Ke6 f1B d5 b2 g5 c4 e4 c3 d6 c2 e5 f4 Na3 b1Q Qd5 f3 Ne2 f2 Nf4 Bb5 Nd3 f1Q Nc4 Qe2 Ra7 Nc6 b8B Qb2 b7 Nge7 Bc7 Nf5 b8B Nh4 Bf4 Nf3 Rc1 Ba4 Qb5 Bb3 Qb7 Ba2 Be3 Bb1 Bf4 Kg8 g7 Qf2 Ba5 Be7 Bbc7 Bf6 Bad2 Qe7+ Kd5 Kf7 d8N+ Kg6 g8Q+ Kh5 d7 Bg7 g6 Ncd4 Qf8 Qg5 Kd6 Kh4 Nf7 Qh2 d8N Bf5 Nc6 Rd8+ Kc5 Qe2 e6 Rd6 Qfc8 Be5 g7 Rhd8 g8Q Bh8 Qf8 Qeg2 Rg1 c1B Bde3 Bd2 Rc1 Qg6 Bh6 Q2g5 Bf4 Be3 Ra2 Qb3 Rg2 Qb2 Rgg1 Qg3 Rg2 Qh2 Rg5 Qhc2 Rg3 Qh5 Rg7 Qg5 Qe7 R6d7 Bfd6 Nb3+ Kd5 Ba7 Qf8 Nfd4 Ke5 Nd2 Kd5 Qg2+ Ke5 N2f3+ Kf6 Qg4 Be5 Rd5 Bef4 R8d6 Ke7 Qg5+
3qQ3/QN4RR/Q5r1/1NRq2nb/1Brq1rpk/1K6/QPB4B/rrn5 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Ke7 Kd2 a5 Kc3 h5 e4 c5 g6 Kf6 d6 a4 b6 a3 b7 h4 g7 c4 d7 h3 d5 g2 d6 a2 Bf4 h2 Qb3 Na6 b8Q Nh6 g8R Nc5 Nh3 g1Q Na3 Nd3 Qa7 Nc1 Rg7 Rg8 Nb5 Qd4+ Kb4 Rb8 Nf2 c3+ Bc4 c2 e5+ Kf5 e6 f6 e7 Nf7 e8Q Ng5 Rb1 a1R Ne4 Rb7 Qba3 Rc7 Q3a6 Bb7 Nc5 Bd5 Bd2 Bf7 Nb7 Bh5 Qa2 Rc8 Ka3 Rc6 Bb3 Rc4 Bb4 Kf4 Qa6 Kg3 Qe7 f5 Qf7 Qf8 d8Q f4 d7 f3 Qde8 f2 d8B f1R Bc7+ Rf4 Ba4 Kh4 Bb8 Ne2 Kb3 c1R Qc7 Rg1 Rc1 Rd1 Rc2 Rdb1 Qc5 Qff6 Qca7 Qfd8 B8d6 Rc7 Rc5 Nc1+ Ka3 Rc6 Bc2 Rc8 Rh7 Rg6 Rg7 Nd3 Kb3 Rc7 Re1 h1Q Ree7 Rc6 Rh7 Qf3 Reg7 Nc1+ Ka4 Qfd5 Ka3 Re4 Bh2 Rcf6 Ka4 Rff4 Ka3 Qf2 Ka4 Rc4 Ka3 Qfd4 Ka4 Nd3 Kb3 Nc1+
b3bR1B/1Q5b/2r2q1K/qNR2P2/pk1BQ1N1/3nbB2/2n1b2n/3B1NR1 w - - 0 1 illegal: No possible last move
1NB1qB2/2Qb2q1/NnRPb3/1bR1Bb1k/8/r1BpnbR1/5N2/K2Q2q1 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 Na3 b5 axb5 d5 Nb1 d4 Qa4 a6 Qc2 Qg5 Qd1 Qd8 Na3 c5 Qb3 a5 Qa2 Ra6 Qb1 Rd6 Nf3 Rd5 cxd5 c4 Ng1 c3 Qc2 Bc5 Qd1 c2 Nb1 Bd6 Ra4 Bb4 Ra1 Bc3 dxc3 Bg4 Ra3 Bf5 Ra1 Bc8 Qd2 h5 e4 f5 b4 Kf7 g4 Kg6 c4 d3 g5 h3 e5 h4 e6 f3 e7 a4 e8N a3 b6 a2 b7 h2 b5 h3 b6 f4 c5 Bd7 c6 Rh7 c7 Kh5 c8Q Be6 g6 Kh6 g7 Rh8 Ne2 Nd7 b8B Ne5 b7 Bf7 Bd6 Ng4 b8B Kh5 Nc7 N8f6 g8R Ne3 Bb2 Nd7 Nbc3 c1Q+ Nd1 Nb6 Rg3 Qb1 Qc2 f2+ Kd2 f3 Kc3 Rh7 Qd2 Qe8 Nd4 Rg7 Rhg1 h1B Bf8 h2 Bh3 f1B Nc6 f2 Kb3 Rg4 Na6 Bf3 Bc7 Rd4 Ncb8 Ra4 Rg6 B1g2 Rc6 f1B Nf2 Bg8 Bf5 Bh3 Rg3 B1g2 Qc2 Qg1 Rc1 a1Q Qd1 Bhg4 Be6 B2h3 R1c5 Ra2 Bf4 Bh7 Qc7 Ra3+ Kb4 Bg6 Bc8 Bd7 Bd4 Bhe6 d6+ Bgf5 Bh8 Ng2 Bd2 Qf6 Bc3 Ne3 Bhg7 Qfg6 Bge5 Qg7 Rc4 Ra5 Kb3 Ra3+ Kb2 h1B R4c5 Be2 Kb1 Bhd5 Ba1 Bef3 Bac3 Bc4 Kb2 Bb5 Kb1 Rb3+ Ka1 Ra3+
NQ5B/5P1r/1b2QBK1/2n2N2/4NBnb/1qnNbQ1R/4p3/Rb1k1q1b w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 g6 cxd5 Nf6 f5 Kd7 Be2 Ng8 f6 Ke8 Bf3 Bd7 Bg4 Bc8 h4 a6 Bf5 gxf5 g4 Bg7 g5 Bh6 g6 Bf8 Ke2 a5 Kf2 Ra6 Ke1 Rc6 Qb3 Rc3 Qa4 Rg3 Qd1 Rg5 hxg5 Bd7 Rh3 Be6 Rh1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 b4+ Kd4 d3 h5 b6 c5 d6 e5+ Kg3 e3 Kh4 e4 b7 a4 f7 f4 b5 e2 g7 e3 d7 a3 b6 a2 Nh3 e1B+ Nf2 c4 Nc3 f3 Bb2 Nf6 g8N Bh6 g6 Rh7 g7 Ng4+ Ne7 Na6 b8Q Nc5 b7 Qb6 d8B Bf5 g8Q Qb3 Ne4+ c3 Qe8 e2 Rh3 Ke3 d4 c2 d5 c1N d6 Ba5 d7 Bb6 Qd5 Bf4 Bf6 Bg3+ Kg5 h4 Nd3 f2 Bh8 f1Q Bc7 Bg6 d8B Bf5 Nc3 Kd2 Ne4+ Kd1 Bf4 Bf2 Qe6 Be3 Qa8 Bg6 b8N Bf5 Na6 Bg6 Rh2 h3 Nc7 Bf5 Rh1 h2 Qb8 Bg6 Na8 Bf5 Q8c6 Bg6 Rg1 h1B Rg3 Bf5 Rh3 Bg6 Rb1 a1B Nf5 Bc3 Ra1 Be1 Bdf6 B1f2 Ra6 Na2 Ra3 Nc3 Ra1+ Kc2 Ned6 Bg3 Qf3 Be1 Ne4 Bg3 Ra5 Kd1 Ra1+ Bc1 Nb2+ Kc2 Ne7 Bd2 Nd6 Be4 Nef5 Be3 Kg6 Bd3 Ne4 Bh4 Ra5 Kc1 Ra1+ Bb1 Nd3+ Kd1
1B6/1B2qpbR/2PQq2N/3n1r1Q/q4NR1/1qQK3Q/bn6/qkN2Bn1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 f4 e5 axb5 exf4 Nf3 a4 Ng1 Ra5 bxa5 Ba3 Qd2 Be7 Qd1 Bf8 Kd2 Ke7 c4 Ke6 e4 Ke5 h4 g5 c5 d5 b6 g4 a6 d3 a7 Kd4 a8B a3 e5 a2 e6 f3 c6 f2 e7 g3 e8N g2 h6 Bg7 b7 Be6 h5 Nd7 b8Q Ne7 h7 Nb6 h6 Na4 Nf6 Nb2 Nh3 g1N Nc3 Qc8 Rb1 a1Q Ng8 Kc4 Bb7 d4 Nf4 Nd5 Qh5 Kb3 Nce2 Ka2 Rh4 Qd7 Rg4 Qe7 Nf6 Rd8 Qd6 Ra8 h8Q Ra5 h7 Rb5 Bh3 f1Q Ng8 Qf3 Bg2 Qe4 Bf1 Ra5 Nh6 Qg6 Ke1 d2+ Kf2 d1Q Qc8 d3 h8Q Nb4 Ke3 Qa4 Bd2 Rf5 Nc1+ Ka3 Be1 d2 Bg3 d1Q Ke4 Ba2+ Qce6 Bf8 Qc3+ Qdb3 Kd4 Bg7+ Ke3 Nd3 Rb2 Qgf6 Rh2 Nb2 Kd2 Rc5 Qef5 Qfe6 Qh3 Nd5 Qfh5 Nd3 Qa5 Kb2 Qc3+ Kb1 Rh1 Nb2 Rh2 Nd1 Kd3 Qe8 Bf2 Ra5 Ba7 Q8e7 Bb8 Nb2+ Kd2 Qb6 Qhe5 Ne3 Nf5 Qa7 Qg2 Qeb3 Rh7 Qc5 Nh6 Qcc4 Qh5 Rf5 Qf3 Qce6 Qfh3 Nbd1 Kd3 Nd5 Rg3 Qg5 Rg2 Qge7 Rg4 Nb2+
3K2kN/2Pq3q/4N3/n1rqq1Bn/3R2B1/4RnRQ/p1r1bQN1/1Q1Q3q w - - 0 1 illegal: No possible last move, all moves rejected
nn3Bq1/2p2N2/r1brQK2/kB2B3/n1r1r2r/2R4Q/4PQRN/2B1q2N w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 b4 Kd7 d4 f5 Kd2 a5 Kc3 h5 g6 h4 g7 f4 b6 g2 b7 a4 b5 g3 d6 f3 b6 Kc6 d7 Kb5 d5 h3 Kd4 f2 Ke5 h2 d6 a3 Nh3 g1R Qd4 a2 Nd2 Rg2 Rg1 h1Q Nf3 Rh2 Rg2 Qh4 d8B Bf5 d7 Qh7 Bf6 Be4 d8N Ka5 Nf7 Ne7 g8Q Nd5 Qe8 Qg8 Qe6 Nc3 Bg7 Ra7 Kf6 Rh4 Bf8 Bc6 Rb1 a1N Rb3 Na4 Rc3 Nb3 Qd3 Nd2 Qdd7 Na6 b8Q Nc4 b7 Ncb6 Qbe8 Rb4 b8B Rc4 Q8e7 Ra8 Ba7 Nb8 Qe3 Qg1 Qe7e6 Rh1 Nh2 Re4 Nf4 Rc4 Nh5 Re4 Nf3 Rhh4 Nh2 Rc4 Qh3 Rce4 Qde6 Qh1 Rg1 Rc4 Bg2 f1R+ Qf4 Rd1 Qf2 Rd6 Be4 g2 Bd3 Rce4 Bb5 Rc4 Ng3 Rce4 Rd1 Qe1 Nh1 g1R Rdd3 Rg5 Rg3 Rc5 Rg6 Rcc4 Rg2 Nc8 Bc5 Ra6 Bd4 Ncb6 Be5 Na8
4q3/pQqQ2b1/1r4b1/4Q3/n1Rr1qP1/3KNBRN/3NR1Nk/b2qBq2 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 Ba3 g3 Bf8 h3 fxg3 Nc3 g5 Nb1 g4 Qa4 g2 Qb3 Be6 Qd1 Bc8 Na3 g3 Nb1 Nd7 Ra6 Ne5 Ra1 Ng4 hxg4 Qf6 Rh3 Qh4 Rh1 Qd8 e4 Ke7 Ke2 Kf6 d4 c5 b4 h5 d6 c4 e5+ Kg6 e6 f5 b6 c3 b5 h4 d7 f4 e7 Kg5 e8N c2 d5 h3 b7 Kh4 b8Q f3+ Kd3 f2 d6 h2 b6 Rh6 b7 Qc7 d8R Ne7 d7 Rb6 Ra3 Nd5 Ng7 Nc3 Nd2 Na4 Be2 f1Q Nh3 g1B Re8 g2 d8N Kg3 Nde6 Bd4 Nef4 g1Q Ng2 Ba1 Rc3 Qff4 Bf3 Qe1 Rg1 h1Q Rc4 Kh2 Nf5 Bfg7 Nfe3 Bf5+ Ree4 Bg6 Bb2 c1Q Bc3 Qc5 Qe5 Re8 b8Q Qc7 Qb7 Re7 Nh4 Ree6 Rg3 Qhg1 Nhg2 Re7 Qb3 Qcd1 Qbb5 Re8 Qd7 Re7 Nf5 Qgf1+ Re2 Re8 Qc5 Re4 Nfe3 Qb3 Qg5 Qb5 Bb4 Qd1 Qe5 Qbc6 Ba5 Qe6 Bb4 Qe8 Ba5 Qc1 Nb3 Qce1 Bc3 Qc1 Be1 Qd1+ Nd2 Rd4#
N4k2/b6Q/1R1R1BBq/1K1B4/2qr1Rr1/b3Pp1b/nN1Nqq1r/B5Q1 w - - 0 1 illegal: No possible last move, all moves rejected
r2rn3/q2N1Nkp/3R1N2/Rq2qB2/1Bb3K1/R3P1Q1/3N1b1q/Q1r1b1B1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 d4 c5 b4 a5 e3 f5 Ke2 Kf7 d6 g2 d7 g3 Kf3 f4 d5 c4 d6 c3 b6 a4 b7 a3 b8B a2 b5 c2 b6 Bh6 g6+ Kf6 g7 Ra3 b7 Kg6 Bd2 Qg5 d8R Nf6 g8N Bf8 d7 Kg7 Bd3 Ra8 Rh5 Bb4 Nh3 Qf5 Ng5 g1B Nf7 g2 Bc7 Qc5 b8N Qa7 Ra5 Ba6 Qe1 Bc3 Bf5 Bd3 Qh4 Bb4 Be1 Bb5 Bf2 Be1 Bd6 Ba6 Bb4 Bf1 Re8 Ba6 d8Q Bd3 Qc7 c1R Nd2 Ba6 Rb1 a1Q Re6 Qe5 Nd7 Bd3 Rb3 Bf1 Ngh6 Rhd8 Rba3 Ne8 Kg4 f3 Ng8 Be2 Qc3 Ba6 Bg3 f2 Qa1 f1Q Bh2 Bgf2 Ngf6 g1Q+ Qg3 Qgg2 Bg1 Qh2 Rd6 Qd3 Kg5 Qdd5 Kg4 Bc4 Bg6 Qdc5 Bf5 Qb5
nR1q1b2/1Q2pn2/1q4k1/R1NbPn2/B1Q1Q1q1/RR3N2/3b1N2/BK1q1r2 w - - 0 1 legal: proof: b4 a5 h4 f5 g4 g5 a4 d5 c4 axb4 cxd5 b5 axb5 Ra6 Qc2 Rg6 Qb3 fxg4 Qd1 g3 Ra5 g4 Ra1 Rg5 hxg5 Bd7 Nf3 Be6 Ng1 Bc8 d4 Kf7 Kd2 h5 Kc2 c5 e4 g2 f4 g3 e5 c4 d6 h4 b6 c3 g6+ Kg7 b7 h3 d5 h2 d7 Nc6 b8R Qc7 d8Q Kh6 d6 Qd7 f5+ Kg7 Nf3 g1N Ra3 g2 Qd5 Nh6 Qc7 Ne2 Nbd2 g1Q Ne4 b3+ Kb1 b2 Nf2 Bb7 Qe4 Ng3 Bb5 Na5 Ba4 Qd8 d7 Bd5 Rbb3 Nc4 Qb7 Qd1 Rf1 h1Q Rg1 Nb6 f6+ Kg8 g7 Kf7 Rg2 Ngf5 Rh2 Kg6 f7 Qg2 g8Q+ Bg7 f8R Na8 Rh3 Qg4 Rb5 Rh7 Ra5 Nf7 Rg3 Rh1 Re8 Qb6 d8N Rf1 Ne6 Qc7 Rb8 Qd8 Qf8 Bh6 Nc5 Bg7 Qe8 Bh6 Qeb5 Bf8 Qbc4 c2+ Ka2 Qe1 Be3 c1B Bd4 Qb4 Kb1 Qb5 Nd2 Qbb6 Rgb3 Kh6 Nf3 Kg6 Kc2 b1Q+ Kc3 Qa1+ Kc2 Bch6 Bc3 Qd1+ Kb2 Bc1+ Kb1 Qg5 Bd4 Qg4 Ba1 Bd2+
1r4r1/NNP4K/n1R2QR1/1Q1r4/Q1n3B1/pR1b3N/rQ2q3/B2kn1qq w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kf2 h5 Kf3 d5 b4 Kd7 c4 Kd6 b6 Ke5 f6 a5 c5 h4 g7 h3 b5 h2 b7 e6 Kg4 Ke4 b6 d3 g6 e5+ Kg5 a4 c6 f3 c7 d2 Ra3 f2 Rb3 d4 Bb2 d3 Ba1 Ke3 Be2 f1R Nh3 a3 Nc3 e4 Na4 Nh6 g8Q Nf5 g7 Qd4 Kg6 Nd6 f7 Na6 b8N Rf2 f8Q Nc4 Qd5 Rg8 Nc6 Rb8 b7 Bf5+ Kh6 Qe5 Qb5 Qb2 Rf1 h1Q Na7 Qc1 Qc2 d1Q Bg4 Qe2 Nc5 Rh2 Rf4 Qcg1 Qf6 Bg6 Qcb2 Bh7 Qbd4+ Kd2 Qa4 e3 Qb2+ Ke1 Rd4 d2 Rd6 d1R Rc6 Rge8 g8R Bd3 Rg6 Rg8 Kh7 Rd2 Qb4 Kd1 Qb5 Rf2 Qa4 Rf5 Re6 Rd5 Rc6 Rbc8 b8Q Rcf8 Qbc3 Ra2 Qbb5 Rb8 Qce5 Qef3 Nb7 e2 Qh2 e1N Qhb2 Qe2
2qbB2N/1P2NBq1/1R1r1k2/3R4/Rbqpr3/1Q1B1KNr/1b1n1R2/3b2Q1 w - - 0 1 illegal: No possible last move
N7/2nQ3b/B1n1R3/k2N1B2/2B2r1R/1qp3n1/KQ2nRP1/1nNrn1qN w - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 g5 a4 g4 axb5 g3 b3 Bg7 Bb2 Bh6 Bf6 Bg5 hxg5 exf6 Qc2 gxf2+ Kd1 f5 Kc1 f4 Qd1 Qe7 Ra2 Qd7 Ra1 Qd8 Kb2 Kd7 d4 f5 e4 a5 d6 c5 e5 h5 e6+ Ke8 g6 c4 b6 c3+ Ka2 f3 e7 Kd7 d5 f4 b7 h4 b4 h3 g7 h2 b5 a4 b6 a3 Nh3 Ra5 Nd2 Rh4 Ba6 f1N Nf2 Nf6 g8B Ne8 Nb3 Ng3 Nc1 Nc6 b8Q Nc7 b7 Ne2 Qd2 Qf8 e8B+ Kd8 d7 Qb4 Re1 h1Q Bg6 Qg1 Nh1 f2 Bf5 f1N Qa7 f3 b8R f2 Qb2 Qa4 Rb4 Nd2 Rf4 f1N Rf2 Rf4 Qd4 Ke7 d8N Kd6 Ne6 Nfg3 Bf7 Kd7 d6 Rd5 Qg7 Bb7 Bg8+ Kc8 d7+ Kb8 d8N Ka7 Qe7 Nb1 Qd7 Rd1 Bf7 Qb5 Bg8 Kb6 Bf7 Nd5 Nc7 Ka5 Na8 Nc7 Bc4 Bc8 Ne6 Qd5 Nc5 Bb7 N5d3 Bc8 Kb3 a2 Nb4 Qe6 Nd5 Qg8 Qe7 Be6 Qd7 Bf7 Bg4 Bg6 Bh3 Bh7 Bf5 Na3 Rb1 a1N+ Ka2 N1c2 Ra1 Ned4 Re6 Ne1 Rb1 Qb8 Qd2 Qg8 Rb4 Nde2 Qb2 Qf7 Rb8 Nb1 Rh8 Bg6 Rh5 Bh7 Rh4 Qg8 Nf6 Qb8 Nd5 Qb3+
3R1r2/Q2N2Bk/1bP3nr/BrN2RpQ/1Q1Bnr2/6K1/q2N3n/1nn3Q1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 exf5 b5 axb5 Nh6 g4 Nc6 g5 Nb8 f6 Ng8 Be2 Ba6 Bg4 hxg4 f5 Qb6 Ra2 Kd8 Ra1 Kc7 Nf3 Bb7 Ng1 Bd5 g6 Bf7 gxf7 Kd6 Nd2 Qc7 Nb1 Qd8 Kf2 Ke5 h4 g5 c4 a5 b4 d5 b6 d3 c5 g3+ Kg2 d4 b5 d2 c6 d3 b7 a4 b6 a3 h5 a2 h6 Qd5+ Kh3 g2 h7 Na6 b8N Nc5 b7 Ne4 Qb3 d1N Be3 d2 Ne2 g1R Nec3 Rf1 Na4 Ndc3 Qd1 Rf4 Qg1 d1R Nd2 Rb1 Nc5 Rb5 Rd1 a1N Bf2 Bg7 f8B Qa2 f7 Kf6 Bd4+ e5 Bd6 Ne7 f8B Nb1 Nbd7+ Kf7 b8Q Nb3 f6 Kg6 f7 Nc1 Qa7 Kh6 Kh2 Ng6 Bc7 Re8 Ba5 Rc8 Be7 Rcf8 Kh3 Bf6 Rh2 Bg7 Rf2 Bf6 Bd6 Bd8 Be7 Bb6 Bf6 Ng3 Kg2 e4 Rff1 e3 Bg7+ Kh5 Rf3 e2 Kh3 e1N Rf1 Rd8 f8Q Ne4 Kh2 Nf3+ Kg2 Nd6 Kg3 Nh2 Qe7 Rdf8 Rf3 Re4 Rf5 Rf4 Qe4 Ne7 Qee1 Kg6 Qe4 Rf6 Qee1 Rhf8 h8Q Re6 Qh3 Ref6 Qg4 Kh7 Qh5+ Rh6 Qe4 Nc3 Qb1 Ng6 Qb4 Nb1 Re1 Nb3 Re8 Nc1 Rd8 Ne4+
4Br1R/k5NQ/p1BQbb2/1b2NQ2/NRbb2P1/n1bn1n2/3B3N/K3r3 w - - 0 1 illegal: No possible last move
q4rK1/1r5B/1qQ5/B1Nn2b1/QNqPBQ2/Rq3N1k/Q1p1nn2/2R1n3 w - - 0 1 illegal: No possible last move, all moves rejected
Q5rk/r1QQ3n/7R/K1QRqBrP/1pq5/N2N1nn1/3rn3/2bR1BN1 w - - 0 1 legal: proof: g4 f5 f4 d5 b4 a5 c4 axb4 cxd5 h6 e4 Ra3 g5 Qd6 g6 Rh3 Bb2 Qd8 Bf6 Be6 Bg5 Bf7 gxf7+ Kd7 exf5 hxg5 f6 Ra3 f5 Ra8 h4 b5 a4 c5 d4 e5 Kd2 b3 Kc3 e4 h5 b2 d6 e3 a5 e2 a6 e1N a7 c4 Kb4 c3 d5 g4 Bc4 g5 Rh3 g3 Qe2 g4 Nd2 g2 Re3 g3 Nb1 c2 Qd1 c1Q Re6 Qc7 Na3 Ne7 Bf1 Bh6 f8N+ Ke8 d7+ Kf7 d8Q Kg8 d6 Nd7 Ng6+ Nf8 d7 Nf3 Nf4 Qe5 Qc7 b1R+ Ka5 Nh7 Nd3 Rd8 a8B Qc4 Be4 Bc1 f7+ Kg7 f8R Rg8 f6+ Kh8 f7 Nf5 Rh6 Rb2 Qa4 b4+ Qc5 Rb8 d8Q Rb7 Qad7 Rf2 Q8c7 Rd2 Ne2 g1N Rd8 g2 f8Q Ng3 Bf5 Bb2 Rd1 Bc1 Nef4 N1e2 Nh3 g1R Qfe8 Rg2 Ng1 Qec3 Qe4 Qe5 Qec6 Ne4 Qa6 Rg5 Qa8 N4g3 Qa4 Qc2 Rd5 Qc4 Qad7 Ra7+
2q4k/1QQ1rrR1/4B3/Rqq2P1K/2bB1N2/nr3qbr/1B2pQ2/2RQ3N w - - 0 1 illegal: No possible last move
1N1R2n1/1Rqbrk2/N6R/1q1Pn3/KR1q4/3Q1p1n/B4qb1/N3BnBQ w - - 0 1 illegal: No possible last move, all moves rejected
qkq2r2/6BR/q1Rn1Q1Q/1P3Nq1/r5Qn/bBNpB3/7K/n2QN1n1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Kf2 h5 Kg2 d5 c4 Kd7 b4 Kc8 g6 a5 f6 e5 c5 d3 g7 d2 c6 a4 b6 f3+ Kg3 h4+ Kh3 e4 g5 e3 g6 e2 f7 e1N c7 a3 Kh2 f2 Qb3 d1Q Nc3 h3 Be3 d4 Bc4 f1Q Nf3 a2 Rc1 Ng2 Ne1 Nh6 g8N a1N g7 Nf5 Nh6 Nc6 g8Q Qc2 Qg7 Ne5 Qf6 Nd6 Nf5 Ra4 b5 d3 Qh6 Qg5 Qf6 Qa2 Qd1 Nh4+ Rc2 Be7 Bb3 Rf8 Qh6 Qf3 Qf6 Qfg4 b7+ Kd7 b8B Kc8 Qh6 Kb7 c8Q+ Ka8 Qc7 Qc4 Qd8 Qc8 Qd7 Qa3 Bc7 Kb7 Bcb6+ Kb8 Bbd4 Qa2 Qde6 Qa3 Qef6 Qa2 Qhh5 Qa3 Qhg4 Nef3+ Kg3 Ng1 Kh2 Qb4 Qh6 Qa5 Bg7 Qaa6 Rc1 Rd8 f8Q Re8 Kg3 h2 Qff6 Rh8 Ne2 Re8 Rc6 Rf8 Nc3 Ngf3 Rf1 h1Q Rf2 Ng1 Rh2 Ne8 Rh3 Qf3+ Kh2 Ba3 Qh7 Nd6 Qh8 Ng6 Rh7 Nh4 Qh6 Rf7 Qd8 Rf8 Qdf6 Qd5 Rc4 Qdb7 Rc6 Qba8
r4b2/Q2N1rr1/3k1B2/R1R1Rp2/n2Nn1bB/BNN1b3/Q6P/b1n1Kr2 w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 h5 axb5 Qg5 Bh3 Qf6 g5 exf4 gxf6 d5 Bg4 hxg4 cxd5 Bd6 Kf2 Bc5+ Ke1 Bf8 b4 Kd7 d4 a5 e4 c5 e5 g5 d6 a4 d5 c4 b6 c3 b5 f3 e6+ Ke8 b7 a3 f7+ Kd8 d7 Ke7 d8B+ Kd6 b6 g3 e7 a2 e8R g2 Qa4 g4 Bf6 g3 Ne2 g1N Nd2 c2 Nb3 g2 Re5 Na6 b8N Nc5 b7 Rh7 Nc3 Ne2 Ba3 c1B Nc6 Be3 Ncd4 Nc1 b8N Ba6 Nd7 Be2 Qa7 Bd1 Rf1 g1R Bh4 Be7 f8Q Nf6 Qf7 Rgg7 Rf2 Ne4 Rc2 Rhh8 Bf6 Rhb8 Qg8 Rb7 Bh4 Bf8 Qe6+ Kc7 Qea6 Na4 d6+ Kc8 Bf6 f2+ Kf1 Rg5 Bb4 Rg4 Nb8 Ng5 d7+ Kc7 Bc5 Nb6 Nce2 Bd2 Rc4 Be3 Nc3 Ne4 Bh4 Rg7 d8B+ Kc8 Bdf6 Bg4 Qa5 Rbf7 Nd7 Re7 Bb4+ Kd8 Rcc5 Ke8 Rb1 Kd8 Rb2 a1B Ra2 Ke8 Qa3 Kd8 Qb2 Ke8 Raa5 Na4 Qa2 Kd8 Nc6+ Kc8 Ba3 Ref7 Qa6+ Kc7 Qa7+ Kd6 Ncd4 Nd2+ Kg2 f1R Kg3 Ne4+ Kg2 Rf2+ Kg1 Rd2+ Kf1 Rf2+ Ke1 Rf1+
1R1qq3/5nNK/3q4/q3B2p/q4r1r/BRQn1B1r/kB3PN1/1nR3QQ w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 g3 f5 Kd2 b5 axb5 g4 Ke1 Bh6 Be2 Bb7 Bf1 Bf4 gxf4 g3 h3 fxe4 Bd2 Bd5 Be3 Be6 Bc1 Bg4 hxg4 Qb6 Rh5 Qc7 Rh1 Qd8 Ke2 Kf7 c4 Ke6 b4 a5 c5 Kd5 f5 Kc4 f6 d5 b6 e5 g5 a4 f7 e3 Kf3+ e2 Kg4 e4 Kh5 d3 f8B e1Q b7 e3 b5 e2 g6 a3 g7 d4 b6 g2 c6 a2 c7 d2 c8Q+ Nc6 b8B d3 b7 Nh6 g8Q+ Nf7 Nf3 g1R Bg2 Ra4 Rh3 Rh1 Nh4 h6 Rg3 Rh3 Kg6 Rb4 Bc7 Ne5+ Kg7 Nf3 Na3+ Kc3 b8R Rf4 Rab1 a1Q Nc2 Qa5 Bb2+ Kc4 Qc1 d1Q Nf5 Nd2 Bfa3 Rh7+ Kg6 Rh8 Bb7 Kb3 Nce3 Ka2 Qc6 Qb3 Qh1 Qba4 Rd1 Nb1 Ba8 d2 Rc1 d1Q Rf3 Q1d7 Kg7 Qed1 Bce5 e1N Kg6 Ng2 Qg7 Rg8 Kh7 Ne1 Qgg1 h5 Ng2 Rgg4 Rfb3 Rgh4 Ng7 Q1d6 Qc3 Nd3 Bf3 Q7e8
1r4nn/4P2q/2p1rRBq/n4n2/r2B1k2/RNRK1N2/2Nn2R1/n1QQ2Q1 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 Nc3 g5 Nf3 f5 Nb1 f4 Ng1 f3 h3 g4 Bg2 Bd6 Bf1 Bf4 gxf4 g3 Ra3 Be6 Ra1 Bg4 hxg4 Qc8 Ra5 Qd7 Ra1 Qd8 e4 Kd7 d4 Kd6 b4 h5 d5 a5 b6 c6 f5 Ke5 f6 g2 f7 c3 f8R a4 b5 h4 g5 a3 g6 h3 d6 a2 d7 h2 g7 Nf6 g8Q Qe7 d8N Ra7 b7 Qc7 b6 Rh7 Be3 Re7 Nd2 Nbd7 b8R Ra4 b7 Re6 Bd4+ Kf4 Nb3 Ne5 Bd3 Nf7 e5 f1N Bg6 f2 Kd3 c2 Nf3 Ng3 Rg1 f1N Rc1 h1Q Ra8 a1N b8Q Qd6 Qa7 Qh8 Qc5 Qh7 Ra6 Nh8 Ra7 Re7 e6 Nf5 Ra5 Re8 e7 Nd2 Qg7 Ng8 Rf6 Kg4 Ne6 Rb8 Qc4 Qdh2 Qc3 Q2h6 Qb2 Rc4 Ra3 Ra4 Nc7 Kg3 Nd5 Kg4 Ne3+ Kf4 Rh1 g1R Rh2 Re1 Rg2 Qh5 Qh6+ Qg5 Qh1 Qgh6 Qg1 Re2 Rb1 Re1 Qbc1 Re2 Na5 Re1 Rbb3 Re2 Rc3 Re1 Ng4 Re6 Ne3 Nab3 Qb1 c1N+ Kc2 Ne2 Kd3 Na1 Nc2 Re8 Bb6 Nd4 Qbc1 Ndb3 Bd4 Rf8 Nb7 Na5 Nc5 Ra8 Nb3 Rb8
3rk1q1/1n3N1Q/1R3RqR/3Q1rn1/2R5/1r1BK3/P1qBNq1p/1rr2BN1 w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qc2 f3 Kd1 f2 Qb3 Kd7 Kc2 Ra6 Kb2 Ra3 Qd1 Ra8 Kc2 Ke8 Nf3 f5 Nd4 g5 Nf3 f4 Ng1 f3 h3 g4 Bg2 Bd6 Bf1 Bf4 gxf4 g3 Kb2 Qg5 Kc2 Bg4 hxg4 Qd8 Kd3 b5 e4 c5 d6 h5 e5 g2 e6 c4+ Ke3 c3 d4 c2 f5 h4 e7 b3 f6 b4 g5 b2 d5 h3 g6 b3 g7 Qc7 Nc3 b1Q Bd2 c1R Nce2 Qg6 Rb1 Nh6 g8B b2 Bh7 Rg8 Qc2 Na6 Qd3 Rb8 d7+ Kf7 d8Q h2 e8R Qc2 d6 Nc5 d7 Rb3 Re6 Nb7 Qa8 Re8 d8N+ Kf8 Qa5 Nf7 Qd5 Ng5 Nf7 Rd8 Rc6 Ke8 Rc4 Rb6 Rh4 Rb4 Rh6 Qg8 Qg6 Rb5 Qh5 Rb3+ Bd3 Qg6 Nh3 g1Q Qh4 Qg4 Nhg1 Re1 Rc1 b1R Qh5 Qg8 Qg6 Qf5 Qg7 Qg6 Qh7 Qd1 Rc4 Qc2 Ne5 Rec1 f7+ Ke7 Bg2 f1Q f8R+ Q8f7 Bh3 f2 Bg2 Qfg7 Rf6 Ke8 Nf7 Qg8 Rb6 Qe1 Rf6 f1R Rb6 Rf2 Bf1 Rf3+ Kd4 Qcd1 Bg2 Rg3 Nh3 Kf8 Rf1 Qc2 Rff6 Rf3 Bf1 Rf5 Ke3 Ke8 Ng1 Qf2#
2R5/NQBrB1k1/Qqr1qbq1/2pQqP2/2br4/b7/R3N1RK/1R2rB2 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 b5 c4 bxc4 f4 g5 a3 g4 f6 Nh6 f5 Nf7 a4 Ng5 hxg5 Nc6 Qf3 Nd4 Qd1 Nb5 axb5 Bb7 Rh4 Ba6 Rh1 Bc8 Kf2 Kf7 Kg2 h5 b4 e5 d4 a5 d5 a4 d6 c3 b6 a3 b7 g3 b8R h4 b5 c2 b6 a2 d7 e3 b7 e4 Bb5 e2 Bc6 e1R Bd2 c1R Nc3 e3 Nb5 e2 Bb4 Ra4 Na7 Rh7 Be7 Rd4 Bb5 Rc6 g6+ Kg8 f7+ Kg7 Rb1 a1B Rh2 h3+ Kh1 Qe8 d8B Be6 Rc8 Bc4 b8Q Bc3 Rg2 h2 Qa4 Qd7 Qa8 Qe6 Qa6 Bb2 Q8b7 Ba3 Bg5 Bfe7 f8R Bf6 Re8 Rb6 Be7 c5 Bf4 Rc6 Bb8 Rc1 Be5 e1Q Bc7 Q1e5 Ra2 Re1 Rg8+ Kh6 Kg2 Rf7 Kh3 g2 Ne2 g1Q g7 Qg6 Ng3 Bd5 Bf1 Bc4 Ne2 Kh7 Ra8 Kh6 Rgc8 Kh7 g8Q+ Kh6 Qd8 Kh7 Qd5 Kg7 Nc3 h1Q+ Rh2 Q6d6 Ne2 Qhe4 Rf2 Qd8 Rg2 Qe6 Kh2 Qe3 Bg3 Qb6 Bc7 Q3e5+ Nf4 Qe4 Bf8+ Kh8 Nb5 Rd3 Qaa7 Bb4 Ne2 Rd7 Be7+ Kg7 Qa2 Qe3 Ra5 Rdd1 Na7 Rd4 Qa4 Q3e4 Qb5 Qe3 Ra2 Ba3 Q5a6 Q3e5+
nrBRQ3/1Q1n2n1/4BK2/R1pB2R1/1r3Qrn/1b1Nn2k/2PQ2n1/2r2N2 w - - 0 1 legal: proof: e4 b5 f4 e5 a4 d5 axb5 g5 Ke2 Qf6 Kf2 dxe4 Ke1 e3 Bd3 e4 Bf1 Qe5 fxe5 Be7 Nh3 Bb4 Ng1 Bf8 h4 Nc6 g4 Bg7 d3 Nce7 e6 Nd5 Bd2 Nb4 Bc3 Na2 Be5 Bf8 Bf4 gxf4 g5 Be7 g6 Bg5 hxg5 Nb4 Nd2 Nc6 Nb1 Nb8 Ke2 Ke7 b4 c5 b6 h5 g7 a5 b7 f5 b5 h4 d4 a4 b6 a3 g6 Kf6 d5 Kg5 d6 Kg4 d7 h3 d8Q h2 e7 f3+ Ke1 a2 e8B e2 Kd2 e1N Kc3 f4 Bf7 e3 Qc7 e2 Na3 f2 Nc4 f3 Qd2 Nh6 g8R Ng2 g7 e1N Nb2 Nd7 b8Q Nf5 b7 Ra4 Bd5 Ngh4 Ne2 Rb4 Nd3 Neg2 Rg1 h1R Ng3 Kh3 Rd8 Rh2 g8B Ng7 Be2 f1N Qcf4 Nfe3 Nf1 f2 Bd1 Nc4 Bge6+ Ngf5 Qa7 Ncb6 b8Q Na8 Qab7 Rg8 Qbe5 Rg4 Qh8 Ng7 Qe8 Rh1 B1f3 Rh2 Bfe4 Rh1 B4f5 Rh2 Qa7 Rb8 Kc4 Bb7 Qb6 Bc6 Qb7 Ba4 Rb1 a1R Rb5 Rc1 Ra5 Nf8 Bc8 Nd7 Bfe6 Rh1 Bc6 Rb1 Kd5 Rb4 Kd6 Bb3 Ke7 Rb6 Bcd5 Rb4 Ng3 f1N Kf7 Ne5+ Kf6 Nfe3 Rc1 Re1 Nf1 Neg6 Rca1 Rc1 R1a3 Nf8 R3a4 Rb5 Re4 Rb6 Re5 Rb4 Rg5 Nd7+
1K2r1B1/r2NNB2/1b1r3p/4NBnR/3P1q2/kp1b1N2/2n1R2b/n2Q1Q1Q w - - 0 1 legal: proof: h4 f5 a4 g5 hxg5 a5 e4 d5 exf5 Qd7 c4 Qd8 b4 axb4 Ba3 bxa3 cxd5 Qd7 Be2 Qd6 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 h6 g4 b4 a5 e6 a6 c6 g6 a2 a7 b3 f6 Na6 g7 Ne7 g8B Rh7 f5 Rh8 g5 Nc7 g6 Ba6 g7 Bd3 f7 Qb8 f6 Rh7 Bh3 c5+ Ke3 e5 Nc3 c4 Bf5 Kc5 d6 Kb4 d7 e4 Kd4 e3 Ke5 e2 Kd6 e1R d8N Re2 Nc6+ Ka3 Nd5 c3 Ne5 c2 Ngf3 c1B Rh5 Nc6+ Ne7 Nb4 Rb1 a1N Rb2 Nbc2 Kd7 Be4 d4 Bd3 Kd6 Ne6+ Kc6 Qe8+ Kb7 Ng5 Kc7 Rd8 a8Q+ Kb4 Qd5 Rd6 Qc6 Qd7+ Kb8 Ka3 Qe4 Qc6 Qh4 Qe4 Qhh1 Ne1 Rc2 Qf4 Rd2 Re4 Re2 Nec2 N7c6 Be7 f8Q Nb4 Bf7 Nbc2 g8B Bd8 Ne7 Be3 Qe8 Bg1 Qb5 Re3 Qc4 Be4 Qcd3 Bh2 Qdf1 Rg7 Qdd1 Bd3 B7g6 Nh3 f7 Ng5 f8N Re4 Nfd7 Rf7 Nc8 Re7 B6f7 Re3 Nc5 Ra7 Ncd7 Re4 Ng6 Re7 Nge5 Re8 Ne7 Bb6+
1nB2Brq/2R2n1r/K3Q1p1/1N3Pkb/QRnN1N2/2RpB3/r1R5/bb6 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 Kf7 Kd3 Kf6 Kc4 e5 f4 e4 h4 e3 b6 d5+ Kb5 e2 c4 e1N c5 b3 b7 b2 c6 d3 h6 d2 h7 d4 c7 d3 h5 Qd6 h6 Ra6 Ra3 Qd4 Nc3 b1B Bh3 Re6 Nf3 Qd8 Qa4 d1R Rh2 Qd6 Nd4 Nc2 Be3 Na1 Rc2 Nd7 b8R Re7 Ka5 Rg1 Ncb5 Qe5 Rac3 Rg2 Rb7 Rh2 Ka6 Nb3 Bg4 Na5 Bh3 Kf7 f6 Kg6 f7 Nc4 Be6 Re8 Bh3 Ba3 f8B Bb2 Be6 Kh5 f5 Nb8+ Ka7 Bd7 c8Q Kh4 Rc7 Ba1 Qca6 Bc6 Bc8 Bf3 Qe6 Bh5 Kb7 Nf6 Ka7 Ng4 Kb7 Rg8 h8N Re7 h7 Nh6 Ng6+ Kg4 h8R Nf7 Nf4 g6 Rh6 Kg5 Ka7 Qh8 Kb7 Be2 Rh4 Bh5 Ka7 Nd7 Ka6 Rg2 Rb2 Rd2 Rb4 Ra2 Rh2 Nb8+ Kb7 Nfe5 Rhc2 Rh7 Ka7 Nf7 Kb7 Nd7 Ka6 Nb8+
5K1k/2B1Q1R1/1B1r1B1r/4n3/1n1qPQ2/5rpQ/NqRbpB2/1N2R1bq w - - 0 1 legal: proof: e4 b5 g4 d5 b4 dxe4 a4 h5 axb5 c6 gxh5 Bd7 b6 Bg4 b7 Bc8 f3 e5 Kf2 e3+ Kg3 e4 b5 Bf5 b6 Bg6 Ba6 e2 Kg2 e3 Bb5 Be4 fxe4 cxb5 Kf3 e1Q Kg4 a5 Kf5 g5 h4 a4 d4 g4 c4 f6 Ke6 a3 h6 b4 c5 g3 d5 a2 h7 b3 c6 f5 c7 b2 c8R f4 h5 f3 d6 f2 h6 f1Q Rc2 Qa6 Ne2 Bg7 d7+ Kf8 Nec3 e2 Qd6+ Ne7 Be3 Qa3 Bf2 Nc6 b8B Nb4 b7 Ra6 Bc7 Bd4 b8Q Qg1 Rh5 Qh1 Rg5 Be3 Bb6 Bd2 Rg7 Qb3+ Kf6 Qa3 Qdc7 Nec6+ Ke6 Ne5 Kd6 Qe8 d8B Qea4 Ke6 Qd7+ Kf6 Qd4 Qcb7 Rg8 h8Q Qb3 Qh7 Rh8 Qf5 Qa3 h7 Qb3 Qfd7 Ra3 Qh3 Ra6 Na3 b1R Q7c7 Rf1 Re1 a1B Nab1 Bb2 Na2 Bbc3 Qcd7 Qb2 Qbc7 Be3 Qdg4 Bcd2 Qf4 Ra5 Qa7 Rd5 Bdc7 Rd8 Bg1 Rf3 Bf2 Rg8 h8B Rd5 Rg5 Rg7 Qb7 Kg8 Ke6 Rg6+ Ke7 Rd8 Bg7 Rh6 Bf6+ Kh7 Rg7+ Kh8 Qa7 Rd6 Kf8 Qa3 Qb8 Qac3 Qe8 Qb2 Qe7 Qc4 Bg1 Bc5 Bd4 Qd3 Bc3 Bce3 Bcd4 Bg1 Bf2 Qdd4
1B4R1/5QrR/k5rq/6qp/1bb3NR/2N1qQn1/r2pP1n1/1K1QNNB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 cxd4 fxe5 Ba3 Bd2 Bc5 Bc1 Bf8 gxh5 g6 h4 Nf6 h6 Ng8 h7 Ba3 Rh3 Be7 Rh1 Bf8 h5 Nc6 h6 Bc5 Bg2 Nb8 Bf3 Bf8 Bh5 gxh5 Kd2 d5 b4 Kd7 c4 Kc7 Kc2 Kb6 e6 a5 e7 f5 e8Q d3+ Kb2 a4 Nf3 f4 Rh4 d2 Nc3 d4 Qf7 d3 Ne1 f3 Kb1 Nd7 c5+ Kb7 b6 f2 c6+ Ka6 c7 f1Q b7 a3 b8Q Qh3 Ra2 Ra7 Qa8 Ne5 Qaf3 Be6 c8N Ne7 Nd6 Nf5 Nc4 Ng4 Ne3 Rg8 h8N Rg6 h7 Ng3 Nf1 Bc4 Ra1 Qg5 b5+ Kb6 Ra2 Ne3 Rb2 Ka5 b6 Ka6 b7 Ng2 b8B Bb4 Rb3 Qe6 Rb2 Qee3 Rc2 Rd6 Ng6 Rc7 Ne5 Rg6 h8R a2+ Ka1 Rb7 Rg8 Rc7 Kb2 a1R Ng4 Ra2+ Kb1 Re7 Qf8 Reg7 Q8f7 Qh6 Rb2 Bd6 Rb7 Bb4 Qb3 d1Q Rd7 Qdd2 Qd1 Qc5 Rc7 Qdg5 Be3 d2 Bg1 Qb6 Q7f5 Qbe3 Rb7 Rc7 Qf8 Rcc6 Rh7 Rg7 Q8f7 Rcg6
NB2B2B/2Rr2R1/1RnR4/r1p1Pq1b/1r1bQ1NK/3Qp1q1/1b3n2/k6N w - - 0 1 legal: proof: g4 d5 e4 b5 d4 e5 a4 h5 gxh5 Be6 axb5 Bc8 c4 f6 Qf3 f5 cxd5 exd4 e5 Qe7 Qg2 Qd8 Qe4 fxe4 h4 Kd7 f4 c5 Kf2 a5 Kg3 g5 b4 a4 f5 a3 d6 a2 f6 Ke6 f7 Kd5 h6 d3 h7 Kd4 h5 g4 h6 d2 b6 d1R d7 Bg7 f8N Na6 b7 Rb8 b5 Qe8 d8Q+ Qd7 b6 Rd3+ Nf3+ Kc4 Nd2+ Kc3 Rg1 Qe8 Kh4 g3 Nh2 g2 Nd7 Nb4 Ng4 Ra8 b8R Ba6 b7 Bb5 Nb6 Ra5 Na8 Bf8 Be2 Ba4 Nf1 Nf6 Bg5 Kb2 Rd1 a1B Ng3 Nc6 Nh1 Rd7 Bb5 Qg6 Rd6 Qf5 Rc8 Bc2 b8B Bd1 Rc7 Ka2 Ba4 Bb2 Bb5 Rg8 h8R Ka1 h7 Bh6 Ba4 Rg6 Rf8 Rg8 h8Q Rgg7 Rg8 Rg6 Re1 g1Q Qh7 Qe3 Rg7 Qa3 Ne3 Ng4 Bf6 Nf2 Ng4 Be3 Re2 Bed4 Rd2 Bc1 Rb2 Bf3 Rb6 Bcb2 Re7 Qc3 Bh8 e3 Rg7 Qe1 Qc8 Re6 Qa6 Re8 Qd3 Ree7 Nh6 Bh5 Ng4 Rf7 Rc8 Rb7 Rc7 Rd7 Bb5 Qf7 Qhe4 Qf5 Bc4 Qg1 Bf7 Qg2 Be8 Qg1 Ra6 Rb4 Rb6 Qg3+
qbN4k/B1Qb2r1/N2bQB1q/KpPR4/3Q4/2p1r3/R2Q4/nnRB1r2 w - - 0 1 legal: proof: c4 c5 g4 f5 e4 h6 exf5 h5 b4 a6 b5 axb5 gxh5 bxc4 d4 c3 dxc5 Ra7 Bh3 Ra4 Bf1 Ra8 f4 Kf7 a4 g5 h4 Kg7 h6+ Kh7 a5 b5 a6 e5 a7 d5 f6 e4 f5 e3 f7 g4 h5 d4 f6 e2 Qd2 g3 Na3 g2 Nc2 d3 Nb4 Bg4 Nh3 g1R Ra2 Qc8 Na6 Qd7 Nf4 Qd8 Ng6 Qa5 Ne7 Nc6 Nc8 Bd6 f8Q Bb8 f7 Qb6 Qe8 Bd6 f8R Qd8 Qe6 Na5 Rf5 Nf6 Rd5 Rb8 a8Q Rb6 Qc6 Re8 Qc7+ Kh8 h7 Rg2 Rg1 Ne4 Rh1 Rg3 Bg2 Nb3 Bf3 Na1 Rg1 Re7 Rh1 Kg7 h8B+ Kh7 h6 Rg7 Rf1 Bf5 Bg4 Re3 Bh5 Rb7 Bf3 Rf7 Bf6 Rg7 Rh1 Kh8 h7 Bg4 Ba3 Qe8 Bb4 Qg6 Rg1 Qh6 Ba5 Bf5 Bb6 Bg4 Qd1 Nd2 Ba7 Nb1 Qd2 Rb8 Kf2 Bf5 Rc1 e1B+ Kf1 Beg3 Bd1 Bg6 Kg2 Be8 Kf1 Bd7 Kg2 Re1 Kf3 Rf1+ Ke4 Bge5 Nb6 Rg8 Nc8 Re8 Rd4 Rg8 Kd5 Bf8 Qg2 d2 Qa5 Bb8 Be2 Be7 Qc7 Bd6 Bd8 Rg6 Bf6+ R8g7 Bh5 d1Q Qd2 Rf4 Be2 Qg1 Bd1 Rg3 Rd3 Re3 Rd4 Be8 Rd3 Rf1 Rd4 Bf7 Kc6 Qg2+ Kb6 Be8 Ka5 Qa8 Rd5 Bd7 Be7 Rg8 Bd8 Kg7 h8Q+ Kf8 Qhd4 Rg7 Qh3 Kg8 Qe6+ Kh7 Bf6 Kh8
2Q1rQ1n/B1R1N2q/1KN4p/2br4/pP5k/4n1NB/1qn5/RNq1B1bQ w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Ke7 d4 Kf6 Kd2 Kg5 Kc3+ Kg6 Kc4 a5 e4 c5 g5 f5 e5 f4 b6 a4 Kb5 h6 b7 f3 d6 c4 d5 f2 d7 c3 d6 c2 e6 Rh7 e7 Nc6 b8B Qc7 Ba7 Re8 Bd2 c1Q d8Q Qb2 Ne2 g1Q d7 g2 Be1 Nd4+ Ka6 Rh8 Qc8 Nc2 d8N Qd7 Rh4 Qf5 Rc4 Kh5 Nc6 Qh7 Rc3 Kh4 g6 Qh1 g7 g1B Bg2 Rd8 e8Q Rd5 Rc5 Bd6 Ng3 f1N Qf8 Nfe3 Bh3 Ne7 g8N Ng6 Nge7 Rg8 Kb6 Nh8 Qf1 Re8 Qf8 Q1e4 Qdf3 Qf4 Qh1 Qf1 Ne5 Qc4 Rc7 Qf4 N5c6 Qf1 Bc3 Qfc1 Be1 Bc5+
4N1QQ/BB2kqnb/1QP4p/N1R1Nbr1/2n4r/2R1b1p1/R3K3/N4q1q w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Nh6 f6 Ng8 g3 Bb7 g4 Bc8 f4 Qc7 f5 Kd8 f7 Nh6 h4 Qb6 g5 Qf6 h5 Ng4 h6 Nxh6 gxf6 Ng4 Be2 Nh2 Bc4 Na6 Bf1 Nb8 b4 d5 c4 g5 b6 e5 b7 a5 b5 d3 b6 d4 c5 e4 Qa4 d2+ Ke2 g4 Qb3 g3 Nf3 a4 Ra2 a3 Ne5 e3 Bg2 Bh6 f8N Nf1 f7 Nc6 b8N Ke7 b7 Ra5 Qb6 Nd8 Rh5 Ne6 Nfd7 Ng7 f8R Bg5 Nf6 d1B+ Kd3 e2 Be3 e1Q Nd2 Bb3 Ne8 Bg8 Nb3 Qf2 Na1 Nd2 Bd5 Qf4 Ke2 Nc4 Rf6 Bd7 Rc6 d3+ Ke1 d2+ Ke2 Kf8 f6 Bf5 f7 Ke7 Bd4 h6 Be4 Ra4 Rc8 Bgh7 Nbc6+ Ke6 b8Q Rg8 Na5+ Ke7 Bb7 Rb4 Rc2 a2 c6 Ra4 Rc3 Rb4 Rd8 Ra4 Rd5 Rb4 Rh2 Ra4 Nc2 a1Q Rc5 Qh1 Na1 Rb4 Nd7 Qc7 Ne5 Be3 f8Q+ Ke6 Nf6 Qf7 Qfc8+ Ke7 Ne8 Nh5 Rf2 Rg5 Rg2 Ng7 Qcd8+ Ke6 Qd5+ Ke7 Rf2 Qf6 Qg8 Qf7 Qh8 Rb5 Nd6 Bd7 Q6a7 Qf4 Rd5 Rb1 Qbg8 Na3 Ne8 Rb4 Bb6 Qf8 Rdc5 Qf7 Rh2 Re4 Kd3 d1Q+ Rd2 Qc1 Ke2 Nc4 Ra2 Rh4 Qa6 Be6 Ba7 Bef5 Qb6 Qcf1#
q3Qb2/1rbB2NQ/PBpB4/r1qQ3K/3R3q/n1k4N/1n1Nbp1R/1Q6 w - - 0 1 illegal: No possible last move
1nqKRNB1/BN2r1P1/Q1bQ1RN1/1RbQ4/6kq/7n/2p1pn2/R2rr3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 h5 g4 e5+ d6 b3 f4+ Kh6 d4 h3 b6 c6 b7 b2 g5+ Kh7 f6 Kg6 d5 Kf5 g6 h2 g7 h4 f7 e4 Na3 b1N Ne2 e3 Qd3+ Kg4 f5 h3 f6 Ra4 Nb5 Ra7 Nf4 Kf3 Ng6 Qd7 Kb6 c5 Qa3 c4 Qa6 c3 Bc4 e2 Be3 c2 Rf1+ Kg3 Rf4 Qe6 Kc7 h1Q d7 h2 d8Q Bc5 f8Q Nd2 d6 Nh6 f7 Bd7 Rf6 Bc6 d7 Ne4 Qd6+ Kg4 f8N Nf7 Qd5 Rh7 Nd6 Nfg5 Qe7 Rh4 d8R Nf2 Re8 Ngh3 Kd8 Qhe4 Bd4 h1R Be3 Re1 Bb3 Nd7 b8R Rh6 Rb4 Nb8 Rb5 Qg8 Qee5 Re7 Nb7 Qf4 Bd4 Qg3 Bc4 Qh4 Qdd6 Qh8 Bg8 Rh5 Qed5 Rhe5 Qh1 Rd5 Be3 Rdd1 Qhd5 Bb4 Ba7 Bc5 Rb3 Q8h5 Rb6 Qf5 Rb5 Qc8+
n1QKn1k1/q2Q2pR/p1bQR3/6q1/R1NBPrQ1/4rN2/B1b5/N2q1b2 w - - 0 1 legal: proof: b4 b5 a4 e5 axb5 d5 f4 exf4 c4 h5 cxd5 a6 g4 hxg4 b6 Rh4 b7 Bc5 b5 Ba7 b6 Rh5 bxa7 Rh8 Kf2 Kf8 e4 f5 d4 c5 h4 f3 Kg3 c4 Kf4 g3 Ke5 f4 h5 f2 h6 g2 h7 c3 d6 c2 d5 f3 d7 Qh4 Ke6 Ne7 d6 Qg5 Be3 c1Q Rh6 Qh5 Ra4 Qa3 Nd2 Nd5 Bd4 Qa1 Bc4 f1B Nb3 f2 Qg4 Qd1 Na1 Qg5 Ba2 Bd3 Nf3 f1B Rg6 g1Q Rh6 Rg8 h8R Nf6 R8h7 Rh8 Rg6 Kg8 Ke7+ Nd5+ Ke8 Bc2 d8Q Nd7 b8Q Bb7 Qbc8 Nb6 d7 Bc6 Re6 Q1e3 Qf6 Nc7+ Kd8 Ne8 Qe7 Rb8 a8N Rb7 Nc7 Qg1 Nd5 Na8 Ne3 Rb3 Nc4 Re3 Qf6 Qc5 Qff4 Qa7 Qfg3 Kf7 Qgb8 Rf8 Qd6 Kg8 Ke7 Qb6 d8Q Qa7+ Qd8d7 Rf4 Kd8 Qg3 Qf5 Qg6 Qg4 Qg5+
3N3n/1N3PRB/QR1qQ1KR/n3pr2/2Rb3B/r2b2n1/q6p/bQ1B3k w - - 0 1 illegal: No possible last move
2N5/1B3p1r/rb1Rq1bn/1Q1nN2q/2BpQ3/N4RrB/1Q4P1/2nKN1k1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 fxe5 Bd6 Bd2 Nh6 axb5 Ng8 b6 Bc5 b5 Bf8 Bb4 axb4 c4 Ke7 e4 Ke6 b7 d5 g6 h5 b6 b3 g7 b2 c5 d3 c6 h4 c7 d4 Qd2 h3 Ra6 h2 Na3 b1N Kd1 Rh7 Qb2 d2 Bc4+ Qd5 Nf3 Nh6 g8N Nd7 b8N Bb7 c8B Ng4 Ne7 Nh6 Rf1 h1R Ne1 Rh3 Nbc6 Rg3 Rf3 Ra7 Qb5 Ba8 Bb7 Nc5 Nc8 Nb3 Nb4 Nc1 Nbd3 Bc5 Qb2 Kd7 e6+ Kd8 e5 Nc3+ Kc2 Qd6 e7+ Kd7 Qb5+ Qc6 Qb2 Nd5 e8B+ Ke6 Kd1 Qd7 Re3 Kf5 e6 Kg4 e7 Qc6 Rf3 Qe6 Bd7 Kh4 e8Q Kg4 Ra4 Ra6 Ne5+ Kh4 Bbc6 Bb7 Rb4 Ba8 b7 Bb6 b8Q Bb7 Ne7 Bc8 Ba8 Bb7 Nc8 Bc6 Bb7 Bb5 Bb3 Bd3 Bc4 Bf5 Rbb3 Bg6 Rf6 Re3 Qe7 Kg3 Rf3+ Kh2 Qe8 Bc5 Rb6 Kg1 Rd6 Bb6 Qa8 Qe7 Bh3 Qe6 Rf2 Rg3 Rf3 Ra4 Qa6 Ra5 Qab5 Ra6 Qec6 Ne7 Qe4 Nd5 Kc2 d1Q+ Kb1 Qd2 Rc3 Qe3 Kc2 Qg5 Kd1 Qgg4+ Rf3 Qh5
qn2r1Nb/4Bp2/1QP4K/3Q4/1R1R1NBn/rq1n3N/Q1qk1p2/1b4QR w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kd2 Ke7 h4 Kd6 e4 Ke5 c4 g5 h6 d5 b6 d3 c5 Kd4 c6 f3 h5 g4 b7 f2 a6 g3 h7 g2 a7 Qb6 h6 Kc4 e5 d4 e6 Ba3 e7 Bh3 e8N Bg4 Be2 Bd6 Nc3 Bb4 Nf6 Qd8 Ba3 Qd6 Nh3 g1Q Rb1 Qgg3 Qg1 Bf5 Bg4 Ne7 Ng8 Qd8 Rb3 Bc5 Nd5 Ng6 Ndf4 Nh4 Rb5 Bf8 Be7 Bg7 Rd5 Qf3 Rd7 Qd5 Rd6 Qb5 Rd5 Qb3 Rb5 Nd7 b8Q Bg6 Qb6 Nb8 Nf6 Rf8 h8R Re8 h7 Be4 Rf8 Bh8 Ng8 Qc8 Kc1 Kc3 Rb4 Qd5 Kd1 d2 Ke2 d3+ Ke3 d1Q Rd4 d2 Rb4 Bg7 h8Q Q5b3 Qh5 Bh8 Qd5 Bb1 Rd4 Qdc2 Rb4 Ng6 Kf3 d1N Kg3 Ne5 Kh4 Ne3 Kh5 Nd3 Kh6 Kd2 Rd4 Ng2 Rb4 Nh4 Rd4 Nd7 Rb4 Rb8 a8Q Qb7 Qaa5 Ra8 Qa2 Ra3 Rd4 Nb8 Rb4 Rc8 Rd8 Qa6 Qdb5 Qa8 Rdd4 Rd8 Qd5 Re8
NB3BB1/1RrNpq2/bpKQ4/4P2Q/N5n1/1RN3Q1/r1k1b2n/1b3q1n w - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 h4 Bh6 h5 Ra6 g6 Bf4 g5 Be5 h6 Bg7 hxg7 Ke8 Ba3 Ra7 Bc1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 Kc4 d4 c5 a5 h5 a6 b6 d6 f6 d5 b3 a7 b2 d7 h4 d6 Rh6 Rh3 Rh8 Rb3 Qe8 d8Q h3 d7 h2 Qd6 Nh6 g8N h1N g7 Rh7 g6 Nf7 Bh6 Ne5 e3+ Nd3 Ne2 Nc6 Raa3 Rb8 a8N Nce5 Q8c7 Nf3 Ra7 Ba6 Rb7 Rc8 Bh3 Nf4 Be6+ Nd5 d8B Rh8 Qcc6 Qf8 Bc7 Rh7 Bf4 Rh2 Bb8 Rg2 Qcd7 Nh2 Bh6 f5+ Ke5 f4 e4 f3 Nf6 f2 g8Q f1B g7 Rf2 Qf7 Rg2 g8Q Qe8 Rb4+ Kd3 Q7c7 c4 Qh5 c3 Bf8 c2 Nd7 c1Q Qgg6 Qe1 Bg8 Qf7 Rb5 Qef2 Qg3+ Q2f3 Nd2 b1B Nc4 Rf2 Nc3 Ra2 Nb2+ Kc2 Rb3 Bfe2 Nba4 Nf6 Kd4 Qf1 e5 Nfg4 Ke4 Q7f2 Kd5 Qf7+ Kc6 Rxc7+
1N2N1B1/1QrP1pq1/R5n1/Q2pQ1Nk/n4R2/bb3K1B/Rr4bq/4R1r1 w - - 0 1 legal: proof: c4 h5 d4 h4 d5 h3 c5 d6 c6 Bd7 Be3 Nf6 Bc5 dxc5 gxh3 Bf5 h4 Ng8 h5 Bc8 f4 e5 fxe5 a5 a4 Qd6 b4 Be7 bxa5 Qd7 d6 Bf8 Ra3 Qd8 d7+ Ke7 Rd3 Rh7 Rd5 Rh8 Rd6 cxd6 Kf2 g5 h4 b5 e4 g4 a6 b4 a5 b3 c7 g3+ Kf3 c4 e6 Kf6 e7 c3 e8R g2 e5+ Kf5 h6 Kg6 h7 b2 a7 c2 a6 c1R h5+ Kh6 e6 Nf6 e7 Bb7+ Qd5 Rc6 c8Q Ng4 Nh3 g1Q Nd2 b1B Ng5 Qdb6 Rh4 Qd8 Qa5 Qc5 Nb3 Qd4 Nc5 Qb2 Bh3 Rg8 h8Q+ Bh7 Qhc3 Bc2 Qe5 Bb3 Qcc7 Bc8 Qcb6 Qc7 Qb7 Nf2 Rf4 Ne4 Nce6 Rc1 Nd8 Nc3 Nc6 Na4 Qeb5 Kg7 h6+ Kg6 h7 Qg7 h8R Rb1 Rhh4 Rb2 Rhg4 Kh5 Qe5 Re2 Rg2 Rb2 Nd8 Nc6 Rd2 Nb4 Nc6 Nd5 Nb8 Qc2 Re2 Qc7 Re1 Qc2 Rd8 Qh2 e8N Be7 Nc6 Rb8 a8B Bf8 a7 Ne7 Qba6 Rb4 Nb8 Ng6 Be4 d5 a8R Rc4 Qb7 Rc7 Ra6 Ba3 Bb1 Ne7 Bh7 Ng6 Qbb5 Bb7 Qbb4 Bc6 Qb7 Bb5 Rc8 Rc1 Rc2 Bf1 Nd6 Rc8 Bg8 Rc7 Ne8 Bfc4 Ree4 Rg1 Re1 Bf1 Rce2 Rb1 Ra2 Rb2 Rf5 Qh6 Rff6 Qg7 Rf4 Bg2+
1QB5/B1Qp1r2/B1q2Q1b/2Qn1P2/3q1pbR/1R2b2q/krK1NN2/1nR5 w - - 0 1 illegal: No possible last move
1N4QR/1p5Q/N4b1R/Bn1K1qb1/QqP1r1Np/B4nR1/N1r5/2bkn3 w - - 0 1 legal: proof: d4 c5 dxc5 g5 h4 a5 b4 axb4 hxg5 Qb6 Nf3 Qc7 Ng1 Qd8 e4 f5 Qe2 d5 Qd1 d4 Bc4 Be6 Bd3 Bd5 exd5 Kf7 Be4 fxe4 Rh6 Ke8 Rh3 Ra3 Rh1 Ra8 Kd2 Kf7 g4 Kg6 c4 e5 a4 h5 f4 d3 Ke3 d2 d6 b3 d7 b2 a5 Nf6 c6 Be7 c7 Ne8 c8R Bf6 a6 Nd6 a7 Re8 Qa4 Nb5 Ra3 Qa5 d8B Nd7 Nh3 Qb4 Nc3 b1Q Nf2 Re6 Ba5 d1N+ Kd2 Ne3 Rh8 Rae8 a8N Ng2 Nc7 Ne1 Na6 e3+ Ke2 e4 Na2 Ne5 f5+ Kf7 Rh4 N5f3 g6+ Ke7 g5 Kd6 g7 Ke5 g8Q Kd4 Rh3 h4 g6 Rd6 g7 Rd7 Ng4 Qc2+ Kf1 e2+ Kf2 Bg5 f6 Ree7 Nc3 Kd3 f7 Qcb1 Rb3 Kc2 f8N Rd2 Na2 Kd1 Rg3 Rc2 Qh7 Bf6 Ke3 Re6 Kf4 e3 g8Q Re4+ Kf5 Bg5 Ra3 Re6 Nd7 Nd3 Nc7 e1B Nb8 e2 Qb3 Bc3 Bb6 e1B Ra6 Bed2 Qa4 Nde1 Ba3 Bc1 Ba5 Re7 Rh6 Bcf6 Ne6 Re8 Ke4 Re7 Kd5 Re8 Nd4 Re2 Nb3 Rb2 Nc5+ Qc2 Nb3 Qg6 Nc5+ Rbc2 Nca6 Re4 Qd7 Qh7 Qdg7 Qg6 Q7h7 Qf5+
rB5N/pKBq2R1/Q3r1qb/2QQ2B1/R1q2nk1/1b6/Np3P2/NN1n1n2 w - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 h5 e4 f5 exf5 Rh7 Bc4 Rh8 Bb3 h4 a4 bxa4 g3 axb3 gxh4 Bb7 h5 Bc8 Ke2 Kd7 Ke3 e5 Ke4 c5 h4 g5 d4 g4 h6 c4 b5 g3 b6 g2 h7 c3 f6 c2 d6 Ke6 d5+ Kf7 b7 Kg6 d7 b2 d6 Bh6 Kd5 Kf5 f7 e4 f8Q+ Qf6 d8B e3 d7 e2 h5 e1N Bg5 c1Q Bc7 Nd3 d8N Nc5 Ra4 Ne4 Nc6 Ng3 Na5 Nd7 b8B Ne5 Nb3 Ng4 Ne2 g1Q Na1 Nf1 Nec3 Be6+ Kc6 Qf7 Kb7 Bb3 Na2 N8f6 Qc5+ Nd5 Rh3 Rc8 h8N Qc4 Rg3 Nge3 Qe2 Nd1 Rg4 Qe4 Qa6 Qc4 Rg3 Qd7 Rg4 Bf8 h6 Re8 h7 Re6 Bc1 Qf4 Ng6 Bc4 h8Q Bb3 Qh1 Qc4 Nh8 Bh6 Rg7 Qg6 Bg5 Kg4 Qe4+ Nf4 Qh1 Qge8 Qhd5 Qg6
1Q6/4nq1b/1QRn1n1B/p3Bk2/K1P3n1/rr1R3B/1Np1B1N1/NbRn4 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 b4 c3 bxc3 b3 c5 Rh4 c2 Rf4 c4 Re4 c3 Rh4 Bg7 Ba3 c1N Rh3 c2 Rh1 Bc3 dxc3 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 Kf7 g4 h5 f4 d5 b4 a5 f6 Ke6 g6 h4 f7 h3 f8B h2 g7 d4 c4 d3 Kc3 d2 g5 Bd7 b5 Rh7 g6 Bc8 f5+ Kf6 b6 e5 b7 e4 Nh3 e3 Bad6 e2 a3 e1N Nf4 Nb3 Ng2 Bd7 Be2 Ne7 g8R Nd3 g7 Na6 b8Q Rh3 Qg1 Ba4 Qgb6 Nc7 Rc1 h1B Be5+ Kg5 f6 Nbc5 f7 Nd7 Rh8 Bb3 g8B Qe8 Rh6 Kf5 Rc6 Ba2 Bh6 Nf6 f8N Qf7 Ne6 Nce8 Nc5 Nd6 Nb3 Nf2+ Kb2 Rg3 Nc3 N2g4 Na4 Bb1 Rd1 Rf3 Rc1 Rf1 Kc3 Ra7 Nb2 Rb7 Rd1 Ba2 Rac1 Bb1 Na1 Rg1 Nf4 Be4 Kb3 Rg3+ Ka4 Rb3 Ng2 Bd3 Rh1 d1N Rh3 Be4 Nd3 Rb2 Rg3 Ra2 Nb2 Ke6 Rd3 Bh7 Qe3 Rb5 Qc5 Kf5 Qcb6 Qg7 Bd5 Rb3 Bdf3 Qg6 Bf1 Qf7 B3e2 Ndc8 Nf4 Nd6 Bh3 Qf8 Ng2 Qe8 Bg7 Qf7 Bh6 Raxa3#
bQ6/2n1QBK1/r2pQ3/n5bB/R1qkP3/Rb2N3/1p1NR1Bb/2r1bB2 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 gxf5 c5 b4 axb4 d4 h6 Bg5 hxg5 dxc5 Ra3 Qd5 Ra7 Qd1 Ra8 Kf2 Kf7 Ke3 b5 Kd4 b3 a4 g4 e4 g5 h4 b2 c4 b4 e6+ Kf6 h5 g3 a5 g4 a6 g2 h6 b3 c6 g3 c7 Be7 h7 Bd6 c5 Be7 a7 Qf8 c6 Bd8 e7 Qf7 e8B Na6 Rh2 Nh6 Na3 b1B Qg4 b2 Nf3 Nb4 Nc4 g1B+ Ne3 g2 Ra4 Na6 Nd2 Bb7 c8B Qe6 c7 Ng8 Bh5 Ne7 Bf7 Rg8 h8Q+ Rg7 Bh5 Bf2 Qh3 g1B Bf7 Bg3 Re2 B1h2 Ra3 Rb8 a8R Bc2 Q8h7 Rg6 Qg4 Nb4 R8a4 Nbd5 Bg2 Bc6 Ba6 Bb3 c8B Ba8 Qg8 Bf2 Qg3 Rb5 Qb8 Rc5 Bd3 Nc7 Bc4 Kg5 f6 Kf4 B8a6 Rh6 Bh5 Be1 f7 Rc6 Bd5 Rc1 f8Q+ Qf7 Bac4 Ra6 Qfg7 Qe6 Qe8 Qc6 Bdf7 Qb5 Qg6 Qb4 Qe6 Nc6+ Kd3 Qb5 Q8e7 Na5 Kd4 Qc6 Qf8 Bg5 Qfe7 Kg3 Ke5 d6+ Kf5 Qd5+ Kg6 Kf4 Qec8 Qe6+ Kg7 Ke5 Qcd7 Kd4 Bb5+ Qc4 Qde6 Bhg3 Rf2 Qb4 Bbf1 Bh2 Re2 Qc4
Q2N2nr/2NP2k1/2NnR3/5bp1/R6Q/Qq3nQp/RKnr4/1nBB2b1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 f6 axb5 Bxg4 e4 Bc8 h4 f5 h5 Bg7 h6 Bxh6 exf5 Bf8 d4 Kf7 Kd2 c5 Kc2 h5 b4 a5 f4 e5 b6 a4 b5 c4 b7 h4 f6 h3 f5 a3 d6 a2 b6 e4 d5 e3 d7 c3 d6 e2 Nf3 Na6 b8R Bb7 Qe1 Qc8 d8N+ Ke8 f7+ Kd7 f6 Bc6 b7 Nc7 Rh2 Nb5 Qh4 e1N+ Kb3 c2 Nd4 Bh1 Nc3 Nf3 Nd5 Qc4+ Kb2 Ra3 N4c6 Rd3 Rf2 Rd2 Be2 Bg7 f8Q Qa4 Nf7 Ke6 d7 Nd6 Bd1 Kf5 Rc8 Kg6 b8Q Bg2 Re8 Bf1 Re1 Bd3 Ree2 Bf5 Nc7 Qc4 Nfd8 Qf7 Rb1 a1N Qa8 Qc4 Re6 Qd5 Qe7 Bf8 f7+ Kg7 Rh6 Qc4 Qe3 Be7 Rg2 Bf6+ Qc3 Bd4 Rf6 Bg1 Re6+ Nd4 Qcg3 Nf3 Rge2 Qa4 Kc3 Qb5 Rb4 Qb6 Ra4 Qb8 Ba3 c1N Rh2 Ncb3 Bc1 Nc2 Kb2 Qb5 Rhe2 Rd4 Rd2 Qd5 Rh2 Nbd2 Rhe2 Nb1 Rg2 Nf6 f8Q+ Kg6 Qa5 Nca3 Qa8 Qb3+ Ka1 Ndc4 Re5 Ng8 Ra2 Rd2 Qc5 Nd6 Re6+ Kg7 Qe3 Qc4 Qd3 Nc2+ Kb2 Qd5 Qa3 Qb3+
5k2/rbR2bNn/2rK1B2/nQ6/2NQb2p/b1q1RPQ1/RpN2r2/2N2B2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 Ke2 e5 Kf3 h5 Ke4 b5 a4 d3 g4 b3 a5 b4 a6 b2 f6 d2 a7 h4 f7+ Ke7 f3 b3 d6+ Ke6 g6 Kf6 Kd5 Kg7 d7 e4 g5 e3 Ne2 Nh6 Ra2 Qb6 d8Q Nf5 Qe8 Qc7 Qb5 Ba3 f8N Nc6 Ne6+ Kg8 g7 Nh6 Rg1 Na5 Rg4 Nf7 Rc4 Rh7 Rc2 Rb8 a8N Qc3 Nb6 Ra8 Nc4 Rh5 Qa6 Ra7 Qb5 Bd6 Nba3 b1B Bb2 Bb7+ Qc6 Bf8 Nc1 e2 Ba1 e1R Bb2 Qe3 Bf6 b2 Rc3 Bd3 Nc2 Ba3 Rb3 Re2 Rc3 Kh7 g8R Rf2 Ng7 Be4+ Ke6 Qd4 Re3 Qc3 g6+ Kh6 Qb5 Ng5+ Kd7 Nh7 Rc8 Rf5 Rc7 Rc5 Qe1 d1B Kd6 Be2 Qd2 B2d3 Qd1 Bed5 Qd2 B3e4 Qd4 Bg8 Ne8 Be6 g7 Bf7 g8Q Ra8 Qg3 Ra7 Bg5+ Kg6 Nf6 Kg7 Nh5+ Kg8 Ng7 Kf8 Bf6 Rc6+
1BRR2Nn/3N1p2/qBnb1bk1/2nR4/2PQ1Qr1/BKp2N1r/6rn/N7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 exf4 cxb5 a6 b4 Qe7 b6 Qg5 b7 Qd8 d3 c5 b5 c4 b6 d6 Bg2 c3 Bc6+ Bd7 Bb5 axb5 Kf1 Be6 Ke1 Bc4 dxc4 Ra5 Kf2 Ra4 Ke1 Ra8 a4 g5 e4 f3 h4 d5 a5 g4 h6 g3 h5 b4 e5 d4 e6 b3 e7 b2 h7 d3 a6 g2 h6 Bg7 a7 Bf6 Rh5 Nc6 b8B Be5 b7 Qc7 Qd2 f2+ Kd1 f1N Na3 b1N Nc2 Nh2 Ba3 Qb6 Nf3 g1B Qf4 Bf6 Rd5 d2 Bc7 Qa5 b8B Bc5 Bb6 Qa6 Ra2 Bb4 Na1 Bd6 Kc2 d1R Kb3 Rg1 Rad2 Rg2 R2d3 Kd7 e8N Nge7 Rd1 Rhg8 h8R Ke6 h7 R8g4 Rg8 Ng6 h8Q Ke7 Qg7 Nh8 Rf8 Bg5 Nf6 Bh4 Rc8 Nd2+ Kc2 Ke6 Ng8 Ne4+ Kb3 Bg5 Qd4 Bf6 Qg5 Ne5 Qc1 Kf5 Qf4+ Kg6 B8c7 Rb8 a8N Nc6 Rd2 Rb7 Bb8 Rd7 B6c7 Rh4 Nb6 Rh3 Rd3 Re7 Nd7 Re5 Bb6 Reg5 Re3 R5g4 Rd8 Ng5 Ree8 Ne4 Rf8 Bc7 Rc8 Bd6 Rfd8 Nc5+
3nN3/1qRrPQ1B/6rp/n1K3Qb/kr2r3/2p1B2Q/N3B1n1/RN4Bb w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kd7 Kd2 c5 Kd3 f5 Kc4 a5 b4 a4 e4 f4 b6 g2 e5 f3 g6 h6 b7 g3 b5 a3 e6+ Kc7 d6+ Kb6 d5 Ka5 d7 f2 g7 a2 b6 Nc6 b8Q Nf6 g8B Nh5 d6 Qe7 d8Q Bb7 d7 Rh7 Qbc8 Rb8 Qf3 Ka4 Ne2 g1R Qf7 g2 Be3 Nf4 Nc1 Ba8 Bd3 f1B b7 Be2 Rh3 Bg4 Be2 Re1 Rh5 Rg7 Bh7 g1R Qdg8 Rg6 d8B Ng2 Bb6 Nd8 Qgg7 Qc7 e7 Qc6 Rh1 Bh5 Qh3 Qb5+ Kd5 c4+ Kd4 Qb3 Kc5 Rd1 Qe5 Rd7 Qg5 Re1 Rf1 Qb2 Rf6 c3 Rc6 Qb3 Rc7 Qb2 Bg1 Qb3 Bd3 Re4 Be2 Rc8 b8N Bb7 Nc6 Rb8 Nd4 Bd5 Ba7 Qb7 Nb5 Bc6 Nd6 Bd5 Nd2 Bc6 Ne8 Bd5 Rb1 a1N Na2 Bc6 Rd1 Bd5 Nb1 Bc6 Bd4 Nb3+ Kc4 Rg4 Nd2 Nf4 Bf6 Bh1 Bfd4 Qf3 Ra1 Ng2 Nb1 Rb5 Bc5 Qb7 Bb6 Re4 Bc5 Ree6 Bg1 Rbb6 Bcf2 Na5+ Kc5 Re4 Be3 Rbb4
2q1B3/3PB1B1/3QBpnN/r7/b1n4b/1R3Rnr/bK2pNk1/1Q1N1b1R w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 Na6 axb5 Nb8 d6 Be6 Bd3 Bg4 Bf1 Bc8 d4 c6 e5 Qd7 d5 Bg7 e6 Bd4 exd7+ Kf8 Kd2 Bxf2 Kc2 Kg7 d8Q Kf6 b4 Ke5 g4 Ke4 g5 h5 b6 a5 b5 e5 b7 h3 d7 h2 b6 a4 g6 a3 g7 f6 d6 h4 Ba6 a2 Be3 h3 Kb2 c5 Qe7 c4 d8R c3+ Kc1 c2 d7 Nc6 b8B Bh4 b7 Na5 Kb2 c1N Qed6 Ne7 g8B Ng6 Be6 Ne2 Bh6 Ng3 Be2 Ra7 Bg7 Nc4+ Kc1 Ra8 Bh5 Ra5 Nc3+ Kf4 Rb1 a1Q Re8 Qa3+ Kc2 Qc5 Rb3 Ke3 Qc1+ Kf2 Qb1 e4 Nd1+ Kg2 Bc7 e3 b8N e2 Nc6 Bb7 Nd4 Bd5 Bd8 Qc8 Be7 Bc6 Nf5 Ba4 Nh6 Rh7 Nf3 Rh8 Ne5 Rh7 Re1 h1B Neg4 h2 Rg8 Kh3 Kc1 Bd5 Ngf2+ Kg2 Rh8 h1B Rf1 Kh2 Kc2 Bhg2 Kc1 Bh3 Rh1+ Kg2 Rf3 Nb6+ Kb2 Ba2 Rf8 Qc5 Rb8 Nc4+ Kc3 Qc8 Rb3 Nf8 Be8 Ng6 Rh2+ Kg1 Kc2 Bf1 Rh1+ Kg2 Ng8 Rhh5 Nh6 Bg5 Kc3 Rh3 Kc2 Bh4 Kc1 Na3+ Kb2 Nc4+
B2b4/2pb1R2/3NRNb1/2k1rQ2/2nnQq2/1KN2Q2/n1P1pB2/Q2B2nr w - - 0 1 legal: proof: b4 a5 g4 f5 d4 h5 gxh5 e5 dxe5 b6 e4 fxe4 a4 b5 axb5 axb4 Kd2 Ke7 f4 d5 h4 g5 f5 b3 Kc3 g4 e6 Kd6 h6 g3 b6 b2 f6 d4+ Kb3 g2 b7 d3 e7 e3 e8B d2 h7 Nh6 h5 Rg8 h8N Ra2 f7 Rg5 Be2 Nc6 b8Q Ra7 Nc3 b1N Nh3 g1N Qb7 Nf3 Ra6 Bg7 f8Q+ Qe7 Nf4 Bd7 Qf5 Nf7 h6 Qe5 h7 Bf6 Nh5 Qf4 Rf1 Bd8 Nf6 N7e5 Nf7+ Kc5 h8Q Ng1 Nd6 Ra8 Qe1 d1B Qh5 Rb8 Qf3 Ra8 Rb6 Ra1 Bf7 Rh5 Bd5 Nc4 Q3e4 Rh1 Bh5 Bg4 Bb2 Bh3 Bd1 Ra5 Qa8 Bg4 Qf2 Be2 Qff3 Bd3 Ra6 e2 Bc1 Qe5 Be3+ Qd4 Bf2 Qe3 Ncb5 Nc3 Rb6 Na2 Nc3 Nab4 Qa6 Rb5 Qa1 Nd4+ Ka4 Na2 Ba8+ Ne5 Nf7 Qh6 Re6 Qf4 Nd6 Bc4 Re8 Bf7 Re7 Bg6 Re6 Kb6 Ka3 Nc4+ Ka4 Ne3 Ka3 Re5 Kb2 Kc5 Ka3 Nb5+ Kb3 Nd4+ Kb2 Rh6 Nh5 Qh4 Qg5 Rd5 Qh3 Re5 Bg3 Nd5 Rf7 Rh7 Qgf5 Qg5 Bf2 Nb6 Nf6 Qf4 Qhf3 Rh1 Bh4 Nc6 Kb3 Nc4 Bf2+ Nd4+
3n4/1P1RrrN1/kB6/3N1nK1/pp3R1n/rQ2nqQ1/1BN2b1b/4B1QQ w - - 0 1 legal: proof: e4 b5 b4 h5 a4 bxa4 g4 f5 exf5 c6 gxh5 Bb7 Ba3 Ba6 Bc1 Bc8 c4 Kf7 b5 Rh7 b6 Ba6 c5 Ke8 Bb5 Rh8 d3 cxb5 Kf1 Bb7 Ke2 Bd5 Ke1 Bc4 dxc4 Rh6 Qd5 Rh7 Qd1 Rh8 Kd2 a5 Ke3 d5 Kf4 Kd7 h4 Kc6 b7 d4 h6 a3 h7 g6 h5 b4 h6 e6 f6 a4 f7 d3 Bb2 d2 Nf3 a2 Nd4+ Kc7 c6 Kb6 c7 Na6 c8Q Bc5 f8B Qe7 Qb3 d1R Rh4 Rd3 Nc3 Qf7+ Kg5 e5 f4 e4 f5 e3 f6 e2 Qh3 e1N Rd1 a1N Nc2 Nb8 Rf4 Bf2 c5+ Ka6 c6 Ne7 c7 Ng2 c8Q Nf5 Nd5 Ngh4 Qc5 Nc6 Qg3 Nd8 Bd6 Rb8 Bc7 Re8 h8Q Re7 h7 Rc8 Ba5 Rcc7 Bb6 Qf8 f7 Rf3 Qa2 Ra3 Qab3 Rcd7 Bc3 Rc7 Be1 Rcd7 Kf6 g5 Rd3 g4 Kg5 Rc7 Qce3 Rcd7 Qg1 g3 Qf3 g2 Qg3 Qe8 f8N Qf7 Ne6 Qf8 Rd2 Rf7 Ng7 Rde7 Qh1 g1B Qg8 Bh2 h8B Qe8 Qgg1 Qc6 Qbg3 Rf8 Qe6 Rf6 Qee3 Rff7 Qb3 Qc3 Nf6 Qc6 Rd7 Qf3 Nd5 Ne3 Qb1 Nb3 Qa2 Nd4 Qb3 Ndf5 Ne6 Nd6 Bb2 Ndf5 Ng7 Qg2 Rg4 Qe4 Rf4 Qf3
2QrB3/RNbqR2n/Q5Nb/3p1r1b/3K1n1N/2PNR3/bBQ1p3/2q4k w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 Kf7 Kd3 Kf6 h4 Ke5 f4+ Kd5 b6 g5 f6 e5 f5 g4 c3 d6 f7 g3 b7 g2 h6 b3 f6 b2 h7 Qc7 h5 Ne7 h6 Nec6 Nd2 b1B+ Qc2 Nd7 b8R Ba2 Ne4 Ra5 Bb2 Nd8 Nh3 g1B Nhf2 Ne6 Nc5 Bh2 Nb7 Bg7 Ra8 Ndf8 Ra7 Qd7 Re1 Rc5 Re3 e4+ Ke2 Bg3 Nd3 Nf4+ Kd2 Rg8 h8Q Nh7 f8N Bh2 Ng6 Rd8 f7 Ra5 Nde5 d3 f8N Bg3 Nh4 Bh2 Kd1 d2 Nfg6 Rc5 Nd3 Ra5 Rh3 e3 Qg8+ Ke4 Qe6+ Re5 Qf6 d5 Qa6 Bg3 R1h2 Rf5 Re2 Nh5 Re1 Bc7 Be2 Nf4 Bh5 Ne6 Ke2 Nf4+ Kf1 d1Q Kg1 Nf6 h7 Qc1 h8Q Nh7 Kf1 Bh6 Rg3 Qd6 Qe8+ Be6 Qd7 Bf7 Qc8 Ne6+ Ke2 Qe7 Nh8 Qd7 Rg7 Be8 Re7 Bg6 Nb4+ Kf4 Kd3 Kg3 Re2 Bf7 N8g6 Nf4+ Kd4 Be8 Nd3 Bf7 Rf2 e2 Rf3+ Kh2 Rfe3 Kh1 Nh8 Bg8 Be8 Be6 N8g6 Bf7 Nf8 Bh5 Nfg6 Qe1 Ng2 Qb1 N2h4 Qc1
kB2rr1B/2R2NRq/n3b1rP/4r3/q3R2Q/1BN3p1/Kp1nQ3/1B1b2Q1 w - - 0 1 legal: proof: c4 c5 e4 d5 d4 h5 b4 f5 exf5 e6 g3 a5 g4 axb4 cxd5 hxg4 Ke2 c4 Ke1 Bc5 dxc5 Kf7 Qd3 Ke7 Qd1 Ke8 Kd2 Kd7 Kc2 Kc7 Kb2 g5 a4 b5 h4 Kb7 f4 b3 h5 g3 h6 g4 f6 e5 f5 b4 f7 e4 f8B e3 a5 g2 f6 g3 d6 e2 f7 e1Q a6+ Ka7 c6 Rh7 c7 Bb7 c8R Qh4 d7 Bf3 d8Q Qee7 Bf4 Rg7 Nc3 Rg6 Bd3 Nf6 Qe2 Ne4 Bb1 Nd2 Nh3 g1R Ng5 Rf1 Bg7 Bd5 f8Q Be6 Bf6 Qh7 Nf7 Rf3 Ra5 Rf2 Ka1 b2+ Ka2 Qg4 Bh8 b3+ Ka3 Rf3 Qh4 Re3 Bc7 Re5 Re1 Qf4 Rd5 Qe4 Rd7 Qg4 Ba2 b1B Re7 b2 Bb3 Bbf5 Ka2 Bc2 Qd8 Bd1 Qd4+ Rc5 Qg1 Qf4 Na4 c3 Rg8 c2 Rg7 c1R Nc3 Qd4 Rd7 Re5 Bd6+ Kb6 a7 Na6 Rc7 Re8 a8B Rc2 Bb7 Ka7 Be4+ Kb8 Bd3 Rc1 Bb1 Ka8 Rc4 Qa7 Bb8 Qd7 Rc7 Qb5 Ne4 Rc4 Nc3 Rf4 Rf1 Rff5 Rf4 Qc4 Re4 Rf4 Nd6 Rff8 Nf7 Qa4+
q1Q5/n2R1N2/2rPbqRK/k2p1R2/Nr1p1Bb1/n2R2Br/B2r4/3Q3Q w - - 0 1 legal: proof: h4 c5 d4 g5 c4 d5 e4 f5 exf5 Bg7 a3 Be5 a4 cxd4 c5 b5 axb5 Bd6 cxd6 gxh4 Ke2 Kd7 Kf3 h5 Kf4 a5 Kg5 e5+ f6 e4 g4 e3 f4 e2 b4 e1R f5 a4 b6 Kc6 b7 Kb6 b5 h3 Bf4 a3 Bc4 h2 Nc3 h4 Ba2 h3 Na4+ Ka5 b6 Nd7 b8Q Qe8 f7 Ba6 f8R Bc8 b7 Ne5 f6 Qf7 Nf3 Ne7 Bg3 Nc4 Ne5 Be6 Qc8 Ra6 b8Q Nc6 Qbb1 Re2 Rf1 h1R Rf5 h2 Rd8 Re8 Kh6 Rd2 g5 Na7 g6 Rc6 g7 Re7 g8R Rb7 Rgg5 Rb4 Rg6 Qe7 f7 Qf6 Bb3 a2 f8B Na3 Nf7 Rcc4 Qe4 Rc6 Rc1 a1Q Rd7 Rg1 Rc4 h1B Ba2 Bf3 Rc3 Bh5 Rd3 Rh1 Be7 Rh3 Qeh1 Qc3 Bf8 Qc4 Be7 Qa6 Bf8 Qb7 Be7 Qa8 Bf4 Qe5 Bh4 Qf6 Bhg3 Bg4+
k4b2/q5q1/NKRp1R2/QQrPB3/1b2nR2/3nR1N1/N4pb1/r1b3BQ w - - 0 1 legal: proof: f4 e5 g4 b5 b4 f5 a4 c5 bxc5 h6 axb5 h5 Bh3 exf4 gxf5 Qa5 Bg4 hxg4 Ra2 Qb6 Ra1 Qd8 Kf2 a5 c4 g5 d4 f3 Ke3 g3 h4 g4 h5 a4 c6 g2 b6 a3 f6 g3 d5 a2 Kd4 Rh7 e4 Ba3 c7 Re7 c5 Ra7 h6 Na6 h7 Rg7 h8B Rh7 b7 Rh5 b8N Rh7 c6 Bb7 c8Q Re7 c7 Nb4 Kc5 d6+ Kb6 Ba6 e5 Nd3 e6 Bb4 Ne2 g1Q+ Be3 g2 Rh3 Rg7 Qb7 Qd7 f7+ Ke7 f8R Nf6 c8R Ne4 Rc6 f2 Rf6 Kd8 Nbc3 Re7 Rb1 a1B Bf4 Bb2 Qe1 Bc1 Ng3 Bc4 Rb3 Ra1 Na6 Rh7 Qa7 Rf7 Nc7 Kc8 Qa5 Kb8 Na6+ Ka8 e7 Rf8 Rh5 Rc8 e8Q Qg7 Rhh6 Qh1 Rf7 g1B Na2 Bh2 Rhf6 Qf3 Qh1 Qe3+ Rc5 Qd4 Qea4 Bb5 Be5 Bd7 Q4b5 Bh3 Rf4 Bg2 R7f6 Qb2 Rc6 Qa3 Nf5 Bg3 Rbc3 Bh4 Ng3 Bg5 Rb3 Bh6 Rbc3 Ne1 Re3 Nd3 Rh4 Nf4 Nc7+ Kb8 Bc3 Nc5 Rfe6 Nfd3 Nf5 Qf6 Qaa6 Ne4 Rc5 Qe7 Bhf6 Qb2 Qaa5 Nd2 Na6+ Ka8 Bg5 Bf3 Bf4 Bh5 Bh2 Ne4 Bg1 Bf3 Rf4 Bg2 Ng3 Bf8 Bh8 Qe5 Rc2 Q5g5 Be5 Qgg7 Ref6 Qd7 Rc7 Qdf7 Rd7 Rc3 Rc7 Rc5 Rc6 Qa7#
Q4B1Q/B1n1BprK/rQp1BR1R/4b1q1/3R1q1N/1P1q1b2/N2k3q/1n6 w - - 0 1 legal: proof: c4 d5 cxd5 e5 Qa4+ b5 Qb3 b4 Qd1 b3 axb3 Bg4 Ra6 Bd7 Ra1 Bc8 g4 h5 gxh5 a5 f4 exf4 Qc2 a4 Qd1 a3 Ra2 axb2 Ra4 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 e4 Kg5 d4 g6 h4+ Kf6 e5+ Kf5 d6 g5 d7 c6 e6 Bg7 e7 Ra7 e8Q Ra6 d5 Qa5 d8R Bh6 d6 Qc3+ Be3 Qe1 d7 Nf6 Ba7 Rh7 Nc3 b1Q Bc4 Qd2 Na2 Bg7 h6 Qh2 h5 Ne4 Qd4 Be5 Qb6 Rg7 h7 Rg6 h8Q Nc3 h6 Qc1 h7 Nb1 Qhf8 Qcd2 h8B Qd6 Bg7 Qdd2 Qh8 Qb4 Qf2 g4+ Ke2 Ke4 Be6 g3 Bf8 g2 Nf3 g1Q Nh4 Qg5 Rf1 Qh3 Qb6 f3+ Kf2 Kd3 Rh1 Nc3 Raf1 Nb1 Rh2 Qbf4 Rhh1 Qgf6 Rh2 Kc2 Rhh1 Qfh2+ Ke3 Q3g3 Ke4 Qg7 Kf5 f2 Rd1 Qh7 Rd4 f1Q+ Rf4 Qe3 Rf3 Kd2 Rf4 Rf6+ Kg5 Qhd3 Kh5 Rg6 Rf6 Rg5+ Kh6 Rg6+ Kh7 Qff4 Rg1 Qc5 Rg5 Qcg1 Rh5 Qgg5 Rh6 Ra3 Qe7 Na6 Qec5 Nc7 Qca5+ Nc3 Qaa6 Nb1 Qab7 Ra6 Qa8 Qd5 Re8 Qd3 d8B Bd7 Bde7 Bc8 Rd8 Bd7 Bd5 Bg4 Be6 Bf3 Rd4 Rg7#
Bn1b1K1Q/p1Q1R3/2b1p1RQ/1Q2N2B/B1r2q1N/rRb1n3/5Pb1/2q3k1 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 c4 fxe4 h4 d5 cxd5 g5 hxg5 Qd6 Ba3 Bf5 axb5 Bg4 b6 Bc8 b5 Qd8 Bb4 cxb4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 h4 g6 h3 b7 h2 b6 b3 g7 b2 g5 e3 g6 e2 Nf3 e1B Na3 b1Q Qc1 Rh5 Nh4 Qf5 Bb5 Be6 Rg1 h1B Ba4 Nh6 g8B Qb1 g7 Qg6 Bf7 Be4 g8B Qh7 Rg6 Na6 b8R Qe8 b7 Bg2 Nc4+ Kc7 Ne5+ Kb6 d6 Qc6 d7 Ng4 d8Q+ Qc7 Ra3 Qh6 Re3 Qf4+ Re4 Rh8 Qd7 Qc2 Qb5+ Kc7 d3 Bd7 Kd5 Bc6+ Ke6 Ne3 d4 Bc3 d5 Qd2 Qh1 Qc1 Bh7 Bg7 Be8 Bf6 Kf7 Kd6 Bg8 Rh5 Kf8 Rg5 Be6 Rg3 Bg4 Rh3 Bh5 Rf3 Bd7 Rg3 Bdg4 Rh3 Bf3 Rg3 Qe2 Kc5 d6 Kd5 d7 Rh3 Qb2 Rg3 Qb6 Rh3 Qc7 e6 Re8 Rd8 b8Q Rc8 Qb4 Nb8 d8Q+ Bd7 Qh2 Bg5+ Qf6 Bc6 Qb2 Rg3 Qf5 Bd8 Rb4+ Kc5 Rb3 Kd4 Re7 Rh3 Nf7 Rg3 Qg5 Kd3 Qh6 Rh3 Bd5 Rf3 Qb1+ Ke2 Qf5 Kf1 Ne5 Be8 Qh3 Kg1 Ba8 Bb5 Qf6 Bc6 Qhf5 Rg3 Qfh8 Bd7 Qd6 Rc4 Qc7 Bdc6 Rb1 Nc2 Nd7 Bf6 Qb5 Ra3 Rb3 Ne3 Rc3 Qg5 Rb3 Bc3 Ne5 Qf4+
k2NQ2n/3BB1R1/1Q1Kp1R1/r1nb2p1/N1q4q/2rR1r2/1Q1qPR2/3B1n2 w - - 0 1 legal: proof: b4 a5 h4 b5 c4 d5 cxd5 g6 h5 Bg7 h6 axb4 a4 Bb2 axb5 f5 g4 Bg7 hxg7 fxg4 d4 Kd7 Kd2 c5 Ke3 Kc7 Kf4 Kb7 Ke5 h5 f4 b3 b6 c4 f5 g3 f6 b2 d6 h4 d7 c3 d5 h3 d6 c2 f7 g5 f8R h2 Nf3 g2 Nc3 b1N Qd4 g1R Na4 Na6 Bh3 Rf1 Ba3 c1Q Qb2 Qcc7 Nd4 Nd2 Nc6 Rh4 Rf2 Nf6 g8B Ra7 Bb3 Nfe4 Bd1 Ka8 Kd5 Bb7 Ke6 Qdb8 d8Q Nac5+ Kd5 Ra6 d7 Nd6 Qe8 Rc4 d8R Nf7 Bd7 Ra5 Rc1 Qbc8 Rc3 Qg3 Rd3 Nh8 Bb4 Qh4 Ba3 e6+ Kd6 Re1 Rhf1 h1Q Rf7 Qg1 Rg7 Qg2 Rf2 Rf1 Rg6 Qgg4 Rff3 Ra6 Qf8 Ncb3 Ke5 Qe1 Be7 Rc3 Kd6 Qe4 Re8 Q4h4 Nd8 Bd5 Rf4 Ra5 b7+ Ka7 Rf5 Qcc4 b8Q+ Ka6 Rf7 Nc5 Rfg7 Rf6 Q8b5+ Ka7 Qb6+ Ka8 Qf7 Rf4 Rf8 Nf1 Qe8 Qd2 Rf5 Rg4 Rff3 Rg3 Rf2 Rf3
b1R3N1/1q2n1k1/NP1NrNpq/1K3R1r/B1n4B/2r2B2/Qp4nQ/3R3q w - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 b4 axb4 a3 b3 Bg2 b2 Bh3 Bg4 Bf1 Bc8 Qa4+ b5 Qd1 b4 Nf3 b3 Ng1 Bb4 axb4 Bh3 Na3 Be6 Nb1 Bc8 e4 Kf8 Ke2 c5 Kd3 f5 Kc4 g6 h4 f3 d4 f2 e5 f4 d6 f3 h6 Qb6 d5 Ne7 h5 Qb7 h7 Be6 b5 Bc8 b6 Qc6 d7 Qe6 d8R+ Kg7 h6+ Kf7 Rh5 Qf6 d6 Bd7 Rc8 Be8 e6+ Kf8 d7 Ra2 d8N Ba4 Rf5 Bc6 Nh3 Ra6 Na3 b1Q Nf4 b2 Bg2 f1N Qb3 f2 Nb7+ Be8 Nd6 Nbc6 Kb5 c4 Nh5 c3 Nc2 Qf7 Bf3 Ra3 Nf6 Ne3 Qa2 f1R Nb4 c2 Na6 Ng2 Bg5 c1Q Bh4 Qe4 Rb1 Re1 Ra1 Qd2 Rb1 Rc3 Rd1 Rg8 h8N Na5+ Rc6 Qg7 h7 Nc4 Nhf7 Rh8 Nh6 Qdf4 Nhg8 Qfh6 Ka4 Bd7 Kb5 Bc8 Rc7 Bb7 Rcc5 Qf7 Rc6 Kg7 Rc8 Nd5 e7 Ba8 e8B Qb7 Kc5 Qb1 Ba4 Re6 Kb5 Qbc1 Bf2 Qh1 Bh4 Qh6 Ne7 Rd8 Neg8 Ne7 h8Q+ Kf8 Nf7 Rce3 Bg5 Q6h5 Rfc5 Rc3 Rcd5 Q5h2 Qh4 Qf4 Qh2 Kg7 Bh4 Qh6 Rg5 Rd4 Nd6 Rde4 Rgd5 R4e5 Rdc5 Rg5 Rf5 Rh5
nQ6/Q3P2N/2Rn1Qbq/1p3B1k/3R2pr/Rr1B1Br1/K2N2q1/1R1qn3 w - - 0 1 legal: proof: f4 e5 c4 a5 b4 axb4 g3 d5 cxd5 f5 Bb2 h6 Bd4 Be7 Be3 Bg5 fxe5 f4 Qc2 f3 Qd1 Be7 Bg5 hxg5 Qc2 Bc5 Qc1 Be3 Qd1 Bf4 gxf4 Qd7 Qc1 Qd6 Qd1 Qd8 e4 Kf7 a4 Kg6 h4 b5 d4 c5 Kd2 b3 Kc1 g4 Kb2 g3 e6 c4 a5 g2 f5+ Kh6 a6 g5 a7 f2 e7 g4 e8B Ba6 e5 Nc6 h5 Qc7 f6 Qb7 d6 Kg5 d5 Qb6 f7 Qb8 f8R Rh7 h6 Nf6 d7 Ne4 d8Q+ Ne7 d6 Qb7 e6 Rh8 d7 Nd6 Bd3 f1Q Qb8 Nec8 d8R Nb6 h7 c3+ Ka3 b2 e7 c2 Ka2 c1Q Qa4 Qff3 Rf6 Qfd1 Nd2 b1R Bd7 Rb3 Nh3+ Kh5 B7f5 g1N Qa3 Nf3 Ng5+ Nh4 Rh3 Qg2 Rb1 Bb7 Re3 Be4 Rf3 Ne8 Rd4 Nd6 Re3 Nf3 Qa6 Ne8 Rc6 Nd6 Qab7 Ne1 Qd7 Rg8 Rf3 Rg6 h8Q+ Rh6 Qf6 Rh7 Qbd8 Rc8 a8B Rh8 Bb7 Na8 Nh7 Rc7 Qb8 Rcc8 Be6 Bg6 Bef5 Rc7 Rb6 Rcc3 Rc6 Qde2 Qdc7 Qcd1 Qa7 Qe3 Qcb8 Qh6 Rff4 Nf3 Ra4 Ne1 Ra3 Qf2 Rd4 Qg2 Bc2 Rh3 Bcd3 Rh4 Rcc4 Rc8 Bf3 Rc5 Rc3 Re5 Rc6 Re3 Bf3e4 Reh3 Bf3 Rg3
4q1nk/N3P1R1/p2pQq1B/b3Qrq1/6QN/r3R3/NB6/bbQrK2R w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 Kd2 h5 Nf3 f5 Ke1 f4 Ng1 Nc6 Bg2 Nce7 Bh3 Nf5 gxf5 Rh7 Bg4 hxg4 Kf1 Rh5 Ke1 Rh8 Ra3 Kf7 c4 g5 h4 Kg7 e4 d3 b4 a6 b6 f3 c5 d6 e6 g3 b5 g4 e5 g2 c6 Qe7 f6+ Kh7 b7 Bh6 b8Q g3 h5 Qd7 c7 Qg7 b6 Qf8 f7 Kg7 b7 Qd8 f8B+ Kh7 Nc3 Qd7 Na2 Bg7 h6 Bf6 Rc3 Bd8 Ba3 Ra7 Qc1 f2+ Kd1 d2 Nf3 g1Q+ Ke2 g2 Bb2 Kg6 h7 d1R Qa8 Rd5 b8R Ra5 Rcb3 Ra3 Re3 f1Q+ Kd2 Bb7 c8N Be4 Rb7 Bb1 Rc7 Rb7 Na7 Rb5 Qc8 Qf7 Qd7 Rc5 Qa4 Qb5 Rb7 Ba5+ Qb4 Qf2+ Kd1 Qh4 Qg4+ Qg5 Rd7 Qf6 Rf7 Bb6 Ke1 Qc6 e7 Qb5 e8Q Ba5+ Bc3 Qc6 e6 Rf5 Qc8 Qa4 e7 Qe8 Qe6 g1B Re2 Bd4 Re3 Nh6 Bb4 Ba1 Bc3 Qc6 Bg7 Rb8 Bf8 Qe8 Bg7 Rb4 Bb2 Ng8 Bf8 Bb6 Bg7 Rd4 Bf8 Rd2 h8Q Ba5 Qh2 Bc7 Bh6 Bb6 Qhe5 Ba5 Rf8 Kh7 Rf7+ Kh8 Rg7 Qgh5 Nh4 Qhg6 Rg1 Qgg5 Rh1 Rd1+
BRQ1N3/1N4Bb/r1rB4/1q1QpNr1/2P3k1/p1bB1r2/1b4n1/R1R1rK2 w - - 0 1 illegal: No possible last move, all moves rejected
2B2r1N/P1R2Kp1/n2NRN2/1Qq1Bp2/QQb1n1n1/B5rN/2n1k3/1n2r3 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 gxh5 d5 cxd5 c5 Nc3 c4 Nb1 Bc5 dxc5 Ra3 Bh3 Ra5 Bf1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 h4 b5 a4 f5 d6 c3 d7 b3 Ke6 b4 a5 b2 c6 c2 a6 b3 a7 Ne7 e5 Ng6 h6 Ba6 c7 Qc8 h7 Nf8+ Kf7 Bb5 d8B Nfd7 h5 Bd3 e6 Nc6 h6 Ncb8 e7 Nb6 e8Q Bb5 Nc3 b1N Nd5 b2 Bf6 Nc3 Nh3 b1N Ra6 N6d7 Ba3 c1R Qa4+ Bc4 Re6 f2 Be5 Kf3 Nf6 Ne4 Qf8 Ke3 Qfb4 Re1 Rh2 Rd8 h8Q Na6 h7 Re8 Bd3 f1N Rc2 Kf3 Qg8 Ne3 h8N Rb8 Rc1 Nc2 Qbb5 Rg1 Qf8 Rg3 Qfb4 Ra8 Bf1 Ke3 Bg2 Ke2 Bh1 Ndc5 Bg2 Nf2 Bd5 Ng4 Bb7 Qb8 c8N Ne4 Nd6 Qc8 Bc3 Qc6 Be5 Rad8 Bc8 Qc5 Nb7 Rd1 Nd6 Re1 Rd1 Rd8 Rd5 Qf2 Rc5 Re8 Rc6 Qc5 Rc7 Rf8+
2bn2R1/2Bn2Rr/6Nn/R4qnN/2n2K2/q1k2p1P/3Np2Q/1BBQ2bB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e6 cxd5 e5 Nh3 a5 Ng1 e4 Qc2 Ra6 Qd1 Rb6 e3 Nc6 Ra3 Nd4 Ra4 Re6 Ra1 Re5 fxe5 Ne2 Ra3 Qg5 Ra2 Qxe3 Ra4 Qg5 Ra1 Qd8 Kf2 Kd7 Ke3 f5 d4 c5 b4 g5 e6+ Kd6 b6 f4+ Kd2 e3+ Kd3 a4 Ke4 g3 e7 c4 e8B a3 b5 g4 b7 a2 b8R c3 b6 c2 h3 g2 b7 g3 Bb2 c1Q Nd2 Nh6 Ngf3 g1N Ne5 g2 Ng6 Qf6 Bc6 Nf3 Rg1 Ne5 Ra8 Qc5 Bc1 Rh7 b8N Qa5 Nd7 Nc4 Kf3 Qf5 Nf6 Bg7 Nh5 Qa3 Ra7 Bf6 Rg7 Bd8 Qc2 Bb6 Qb2 Nf7 Rg8 Ng3 Bd3 Nd8 Bb1 e2+ Qb3 Nf1 Rg7 Nfe3 Qd1 Qa7 Bb7 Ng4 Ba8 Nh6 Rg8 Kd7 d6 Ke6 d7 Kd6 d5 Kc5 d6 Kd4 Rg7 Kc3 Rg8 Qa3 Bc6 Ne6 d8B Ba7 Bc7 Nd8 d7 Be3 Rh1 Ba7 Qg1 Be3 Qh2 g1N+ Kg2 Nf3 Rg1 Ng5 Bf3 Nc6 d8Q Bf2 Qd7 Nd8 Qa4 Bd4 Qd1 Bf2 Qg3 Bd4 Kh2 Bc5 Bh1+ f3 Qf2 Ba7 Kg3 Be3 Qh2 Ba7 Rg2 Bg1 Bd3 Qd7 Kf4 Qe6 Rb1 a1N Rb5 Nb3 Bb1 Nc5 Ra5 Nd7 Nh4 Ne4 R2g7 Ng5 Ng6 Qf5+
4RR1n/NQ2n2k/N3K3/5P1q/5Nq1/rNQBpRp1/3Qbbn1/1n1Bn3 w - - 0 1 legal: proof: e4 d5 a4 f5 f4 b5 axb5 g5 c4 gxf4 cxd5 f3 Bc4 f4 Bf1 a6 g4 h6 g5 a5 g6 Qd6 b3 Ra6 Bb2 Qd8 Bf6 Re6 Bh4 Re5 Bg5 Rf5 exf5 hxg5 Kf2 c5 h4 e5 d4 c4 g7 Kf7 b4 g4 d6 e4 d5 c3 d7 c2 h5 c1Q d6 a4 b6 a3 b7 a2 h6 Nc6 b8N Ne5 b5 Nf6 h7 Ng6 g8B+ Kg7 b6 Be7 b7 Nd5 Na6 Qe8 d8N Qc4 Rh3 Bh4+ Rg3 Nde7 b8Q Bd7 Nh3 Bb5 d7 Qb4 Qc1 Be2 Bb3 Rf8 Ba4 Nh8 Nd2 Qh5 Nc6 Rf6 Rb1 a1N d8R Nc2 Rf8 Ne1 Bd1 Rd6 Qa7 Rd3 Qb7 Ra3 Na7 Qc4 Nb3 Qg8 Kg1 f2+ Kh2 f3 Nf4 Kh6 Qd2 Qgg6 Rc1 Qgg5 Rcc8 Qg7 Bh3 f1N+ Kg1 Qgg6 Kf2 Ne3 Bf1 N3g2 Rce8 e3+ Kg1 f2+ Kh2 Bf3 Bd3 Be2 Rf3 f1N+ Kg1 Ng3 Kh2 Ne4 B3c2 Nc3 Bd3 Bf6+ Kg3 Nb1 Ne6 Nh4 Kf4 Nhg2+ Ke4 Qg8 Nf4 Bh4 Ke5 Bf2 Kf6 g3 Ke5 Nf7+ Ke6 Qgg4 h8Q+ Kg5 Qe5 Kh6 Qd4 Nh8 Q4c3 Kh7
1RrN3Q/bBqq1b1K/3RbQ2/b1p1r1b1/1B1Qp1RN/3Pn2k/2Q5/N7 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 c4 Nd7 g6 Ndf6 g5 Nd5 cxd5 Bg4 f3 Bxf3 Rh2 Bg4 Rh1 Bc8 Kf2 e3+ Kf3 Kd7 Kg4 e5 Kh5 c5 b4 a5 d3 e2 d6 Ke6 b6 Kf5 b7 e1B b8Q f3 g7 f2 g6 a4 b5 a3 b6 a2 d7 Be7 b7 Qc7 Ba3 Bg5 Nd2 Nh6 Nb3 Re8 g8Q Ng4 g7 e4 Bh3 f1Q Qd5+ Re5 g8Q Ba5 Qg7 Bb6 Qb1 Ba7 Qc2 h6 Rc1 a1B Qd4 Bc3 Na1 Ba5 Bb4 Kf4 Kg6 Kg3 Rh2 h5 Nf3 h4 Kh7 Ne3 Be6 h3 Bd5 Qh1 Rg1+ Qg2 Rhh1 h2 Qf8 Qd8 Qbd6 Qc7 Qh8 Kg4 Qe7 Kg3 d8N Bh3 Nf7 Rc8 b8R Bd7 Nd8 Be8 Bb7 Bf7 Rf1 Kh3 Nh4 Qg4 Rf6 Qgd7 Rd6 Be6 Rg1 h1B Qeg7 Bf3 Rg2 Bh5 Rg4 Bhf7 Qh6 Nf1 Q6f6 Ne3
1BR1N1r1/Pk1qB2N/1BpprrQ1/1b1Q4/r3b1Rr/n4Nq1/8/1B1K3Q w - - 0 1 legal: proof: h4 b5 e4 g5 b4 gxh4 c3 a5 Qb3 axb4 Qa4 f5 Qd1 b3 exf5 b2 d4 b4 d5 b3 Qe2 Nc6 Qd1 Bh6 d6 Nb4 cxb4 c6 Qe2 Be3 Qd3 Bb6 Qd1 Bc7 dxc7 Ra4 Bd2 Ra3 Bc1 Ra8 f4 h5 a4 e5 g4 d6 a5 Kd7 b5 e4 a6 h3 a7 h4 g5 e3 f6 h2 f5 e2 b6 h3 g6 Nh6 b7 Rb8 g7 Qe7 g8Q Qf8 f7 Qd8 f8B Nf7 f6 Rh4 Nf3 Ra4 Qd5 Ne5 f7 Nc4 Be7 Na3 Nbd2 b1Q Ne4 b2 Qg6 Qd3 Be3 b1B Bb6 Ra8 b8B Ba6 f8N+ Kc8 Nf6 Qd7 Ra2 Bb5 Ne8 Kb7 Nh7 Qc3+ Rd2 Be4 Bg2 Qe5 Rd4 Qg3+ Kd2 e1R Rb4 Re2+ Kd1 Rf2 Re1 h1R Bf1 h2 Bd3 Rb2 Bb1 Rf1 Rc4 h1R Rd4 Bed3 Rg4 Rff2 Rf1 Rh4 Re1 Rbc2 Re6 Rcc4 Rf6 Re2 Rf8 Rf4 Rg8 Rf6 Rf8 Ka6 Rh8 Be4 c8Q+ Qb7 Qcf5 Qd7 Qfh5 Re3 Ng7 Kb7 Rc8 Bed3 Ne8 Ree6 Qhh6 Be4 Qhh5 Rh2 Qh3 Rh1+ Qf1 Rh4 Qh1 Qh2 Ng7 Rf4 Rh8 Nc2 B8c7 Na3 Re8 Rd8 Bb8 Rff6 Rg8 Rdf8 Rh8 Qg3 Rg8 R8f7 Rc8 Rf8 Ne8 Rg8
1rN2Q2/p1B5/K3R3/3Bq1nP/2nRRNQp/q2rn2n/N3b1N1/4nk1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Qd3 cxd4 Qd1 h4 Na3 g5 Qd3 Bb4+ Kd1 Be1 Qd2 Bg3 Nb1 Qf6 Qd3 Qh6 Kd2 Qh5 gxh5 g4 Kd1 Bf2 Qd2 g3 Qd3 Be3 Ke1 g2 Qd1 Bf2+ Kd2 Bg3 hxg3 Nc6 Ke1 Nb8 e4 Ke7 Kd2 Kd6 Kd3 Ke5 Kc4 f5 b4 d3 b6 d5+ Kb5 Kd4 c4 d2 c5 Ke3 c6 Kf2 e5 d4 b7 f3 e6 f4 g4 d3 g5 Nd7 b8R Ngf6 c7 Nc5 g6 Rd8 e7 Ng8 e8N Na4 g7 Rd4 Nd6 Nh6 g8B Nf7 Nc4 Ng5 Ne3 Bg4 c8N Nb6 Ne2 g1N Ka6 N1h3 b5 Nc4 Rb6 Rb8 Nbc3 Rd6 Qa4 d1Q Na2 d2 Bg2 Qb3 Bd5 d1N Re1 Ndb2 Bh1 Nd3 Ng2 Qa3 Rc6 Rd8 b6 Rd6 Rd1 Ne1 b7 Kf1 Rd4 f2 Re4 f3 Bf4 Rd7 Bc7 Rd8 Nef4 Rd6 Bf7 Rd3 Rb6 Kg1 Rd1 f1Q Be6 f2 Bd5 Qe2 Rbe6 f1N Rd2 Nfe3 Rd1 Ra8 b8Q Kf1 Qb4 Qeb2 Qf8 Be2 Rd2 Qe5 Rd1 Rc3 Rd3 Rb8 Rdd4 Qb2 Qd7 Rd3 Qdg7 Qb4 Qg6 Qc5 Qgf5 Qb4 Qg4 Qa3+
8/1B2B3/6nR/qNK1bp1Q/3r1k2/QB2R1bQ/rRNPpb1q/1r2Qr2 w - - 0 1 legal: proof: h4 e5 f4 d5 a4 b5 axb5 g5 c4 gxh4 e3 Be6 e4 Nd7 Ne2 dxc4 Ng1 Bd5 exd5 e4 Ra5 Qf6 Ra1 Ne5 fxe5 Qd8 Kf2 Kd7 Ke3 a5 Kd4 h5 b4 f5 g4 h3 g5 a4 b6 a3 b5 a2 d6 Ke6 d7 h4 b7 h2 b8Q c3 b6 c2 b7 e3 g6 h3 g7 e2 Bg2 Bd6 Nc3 Ne7 Nf3 Ng6 Ba3 c1B Qe1 Bb2 Qa7 c5+ Kc4 Qc7 d8Q Qa5 Nb5 Bd4 b8R Bf2 Qh4 Rd8 Rc1 a1B Rc3 Bb2 Re3 Bd4 Qd1 Bb2 Ne1 Bc7 Bb7 Rd4+ Kb3 Bd6 Nc2 Ba1 Qe1 c4+ Ka2 c3 Kb3 Bc7 Be7 Bd6 Qc5 Ra6 Qa3 Ra7 Rg1 h1Q Qg3 h2 Qh3 Ra6 Rg5 Qg1 Rh5 h1R Rh6 Qh2 g8B+ Kd7 Na7 Rf1 e6+ Kc7 Bf7 Bdg3 Nb5+ Kb6 Nb4 c2 Bg8 c1R Nc2 Rd8 Kc4 Rb1 Bf6 Ra7 e7 Bae5 e8Q Rd7 Be7 Rd5 Nd6 Kc7 Qf7 Kd7 Nb5 Rd4+ Kc5 Ra6 Qf6 Ra7 Bb3 Ra6 Qg5 Ra8 Ba4 Ke6 Qgh5 Ra6 Bd6 Kf6 Bb3 Ra8 Qf3 Kg5 Qfh5+ Kf4 Be7 Ra6 Ra8 Rh1 Qa2 Qd8 Qb2 Raa1 Ra2 Rf1 Qa3 Qa5 Rb2 Ra2
6KB/R7/N2RB3/1pQQRr2/b1B2kqp/n1bPq1rq/b3b3/1N1R1N2 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ne5 h5 Ng6 hxg6 Ra8 Ke2 h5 Kf3 c5 Ke4 e5 a4 Ke7 a5 f3 g7 f2 g6 Kf6 a6 b3 a7 b2 d3 h4 d6 c4 Kd5 e4 d7 e3 Qa4 c3 Qb4 e2 Nf3 e1Q Bh3 f1B Nfd2 Nh6 g8B c2 g7 Ng4 Ra4 Qc7 d8R Qe3 Qa5 Rb8 a8N Qh2 Nc7 Bd7 Qb5 b6 Ra7 Bb4 Na6 Rh5 Qc5 Ba4 Bf7 b5 g8Q Qg5 Re8 Be2 Rd1 Rb7 Nf1 Ne5 Rd8 Re7 Rd6+ Re6 Bd2 c1Q Bc3 Qce3 Bg4 Qhh3 Qa8 Kg7 f6+ Kh6 Bg8 Qf5 f7 Rg6 f8R Nc4+ Be5 Na3 Re8 Qff4 Bf5 Bd2 Bh8 Bc3 Re5 Qfg3 Bd7 Rf5 Bf7 Kh5 Bg8 Rg4 Ke6 Kg5 Ke7 Qgf4 Bc4 Rg3 Qad5 Qfe4 Be6 Qeg4 Nbd2 b1B Ke8 Ba2 Nb1 Kf4 Ke7 Rh5 Kf8 Rf5+ Bf7 Kg5 Kg8 B4b3 Be6 Bc2 Bf7 Ba4 Be6 Kf4+
qb4Rr/1br3r1/NBN1N1pQ/2K4p/3rn2k/1Q1N4/1QBPqb2/2R1B3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 e5 a4 exf4 axb5 g6 h4 Nd7 h5 Nc5 h6 Ne6 g3 Ng7 hxg7 fxg3 e4 Ke7 Ke2 Kf6 Kd3 Kg5 Kc4 f5 b4 h5 e5 c5 b6 a5 e6 g2 b5 a4 d6 f4 b7 a3 b8B f3 d7 a2 e7 f2 e8N Ra5 b6 Qf6 d8N Bg4 b7 Rh6 Nh3+ Kh4 Bd3 f1R Nc6 g1Q Nf2+ Bh3 Bb2 Qe7 Nc3 Qe2 Na4 Rh8 Nc7 Nf6 g8Q Ra7 Bd4 Bd6 Na6 Qg2 Qb3 Ne4 Qf8 Be5 Rc1 a1B Qh6 Rg1 Kb5 c4 Bb6 c3 N4c5 c2 Ne6 Bad4 Kc4 Re1 Rf1 Bg4 Bd6 Bf3 b8Q Rg7 Bdc5 Bg3 Qe5 Be3 Qeb2 Bb8 Kb4 Nc3 Bf5 Ne4 Nd3 Qh1 Rf2 Rg1 Rff1 Bf2 Kb5 Rg4 Be3 Bfg3 Bf2 Bg2 Be1 Bf2 Ra1 c1R Kb4 Rc5 Rc1 Rd5 Kc4 Rdd7 Kb5 Rc7 Kb4 Ng5+ Kb5 Rd4 Kc5 Bd5 Be4 Bg3 Rf8 Bf2 Rg8 Qhf3 Ndf4 Qg2 Bc2 Qh1 Nd3 Ne4+ Kb5 Qg2 Na7 Bb7 Nc6 Qgf3 Q3c3 Qf8 Qca3 Ba7 Qab4 Qa8 Q4b3 Rd6 Kc4 Bb8 Kb4 Rd4+ Kb5 Nf6 Kc5 Ne4+
KN2k1N1/1n4B1/2RB2pp/1R2b1n1/Qb2P1r1/2q1B3/1qnnQ2N/2R1B2b w - - 0 1 legal: proof: d4 b5 g4 d5 a4 f5 axb5 fxg4 c4 e6 cxd5 Bd6 Bg2 Bf8 d6 Bb7 d5 Ba6 d7+ Kf7 d6 Bc8 h4 a5 h5 g6 Bd5 exd5 h6 Nf6 Qc2 Rg8 Qa4 Rg7 hxg7 Ng8 Qd1 Nc6 Qd3 Qe7 Qg3 Nh6 Kd1 Ba6 Nd2 Re8 Ke1 Bc8 Qb3 Nb8 Qb4 Qd8 Qa3 Be7 Qd3 Rh8 Nb1 Ng8 Qd1 Bf8 Kd2 c5 Kc3 c4 Kd4 h6 Kc5 d4 f4 d3 e4 c3 b4 d2 b6 g3 b5 a4 b7 a3 b6 a2 f5 c2 f6 g2 Nf3 g1N Na3 Qe8 d8Q Bf5 Nh2 Nd7+ Kc6 Nc5+ d7 Be6 b8B Bh3 b7 Nf3 Bd6 Qe5 b8R Be6 Rb5 Bh3 Qe2 d1N Nc4 Nd2 Qa5 Qb2 d8B Ne3 Nb6 Bg2 Nd7 Ke8 Nb8 Nb7 Qa4 Rh7 Re1 Bh1 Ba5 Rh8 Rb1 a1B Kb6 Qc3 Ka7 Bb2 Ka8 Rh7 Bg3 Bb4 Bac7 Ba1 Bcd6 Bb2 Rf1 Ba1 Be1 Rh8 Ba3 c1Q Rb3 Q3b2 Rc3 Nc2 Rc6 Qc3 Bc5 Q1b2 f7+ Kd8 f8B Ke8 Rf7 Nf6 g8N Nh7 Be3 Ng5 Rf1 Rh7 Rg1 Rf7 Bg7 Rf4 Rf1 Rg4 Rg1 Be7 Bd6 Bf8 Bh4 Be7 Rc1 Bf8 Be1 Be7 Bdg3 Bb4 Bd6 Qa2 Ra5 Qcb3 Nd7 Be5 Rb5 Qc3 Nb8 Qab2
QQ6/1NrBKn2/1RQ1P1p1/2qRB3/3Rqb2/3Rpq1b/3q3r/rN1N1k2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 e4 f5 d4 e5 Bh3 Nd7 Bg2 fxe4 Bf1 e3 Qf3 e4 Qd1 Ne5 dxe5 Qe7 Qf3 Qf6 Qd1 Qd8 Ke2 Ke7 f4 c5 b4 a5 h4 g6 e6 Kf6 f5 Ke5 f6 Kf4 b6 Kg3 d6 c4 h5 a4 f7 c3 h6 a3 b7 c2 b8Q a2 d7+ Bd6 f8Q Qg5 d8N Qe5 h7 Be7 b5 Bc5 b6 Bd6 b7 Ba3 Bb2 c1Q Qc2 Ra7 Rh4 Qf4 Qc6 Nh6 Be5 Nf7 Nh3 Bd6 Nf2 Qa3 Nd1 Qc5 Ke1 e2 Qa8 Kf3 b8R g3 Rb6 g2 Nb7 g1Q Qb8 Qfg3+ Kd2 Q1f2 Qa8 Bd7 Qfb8 Qg5+ Rf4+ Kg3 Bg2 Qf3 Bh1 e3+ Kd3 e1Q Rd4+ Qgf4 Rd5 Kh2 Bg2 Kg1 Bf1 Rc8 h8R Rc7 Rh4 Qef2 Bg2 Qa4 Bh1 Kf1 Rhd4 Qh2 Bf6 Bf4 Be5 Qfh5 Ke4 Qd2 Qd6 Bb5 Qc6 Kg1 Bf3 Bf1 Be2 Bh3 Bb5 Qac2+ Rd3 Kf1 Rd4 Qe7 Kd5 Qeh4 Ba4 Q4g4 Bb5 Qa4 Kc5 Qf3 Rd5 Qae4 R5d4 Ng5 Kd6 Rh7 Rd5 Nf7+ Ke7 Rh8 Qc4 Qhf5 Bd7 Rh6 Qc6 Rh7 Nc5 Rc7 Nb7 Rh5 Nbc3 Rh6 Rab1 a1R R1b4 Bg4 Rbd4 Rh2 Nb1 Bh3 Rc4 Qd4 Ra4 Q5e4 Rc4 Q4c3 Rcd4 Qc5+
1B2kqB1/1bbR4/Q3p2p/n3n3/N6P/qQNK2bR/2rQ1q2/BR4Rb w - - 0 1 legal: proof: b4 a5 g4 f5 e4 c5 a4 f4 bxc5 b5 axb5 d6 e5 dxe5 Bb2 Ra6 Bc1 Rf6 f3 Rf5 gxf5 e4 Bb2 exf3 Ba3 Na6 Bc1 Nb8 d4 g5 Kd2 h6 h4 a4 c4 a3 c6 a2 c7 g4 c5 g3 b6 g2 c6 f2 d5 f3 f6 Qd6 b7 Bf5 c8Q+ Qd8 c7 Bg4 d6 Nc6 b8B Bd7 Qa6 Ne5 c8R Bc6 Ne2 g1B Rc7 Bh2 Bb2 Bg3 Rd7 Bb7 Rg1 e6 Nbc3 Ne7 Qb3 N7c6 Rb1 a1Q Na4 Rg8 Nec3 Na5 Bd3 f1B Bh7 Qa3 Ba1 f2 Ke3 Rg5 Bg8 Bfg2 Kd2 f1Q Kc2 Be7 f7+ Kf8 Kd2 Bh1 Kc2 Rg4 Kd2 Rc4 Ke3 Kg7 f8R Qe8 Rf4 Qf8 Rf3 Kg6 Kd2 Bd8 Ke3 Rc6 Kd4 Qf2+ Ke4 Ng4 Kd3 Bc7 Re3 Bf4 Rh3 Bg3 Re7 Rc5 d7 Rc6 d8Q Rc5 Nd1 Rc2 Ndc3 Kf6 Qdd5 Kg6 Rd7 Kf6 Rd8 Ke7 Rd7+ Ke8 Qd4 Bgd6 Qe3 Bg3 Qd2 Ne5+
1K3N1Q/3qN2Q/3pq3/2r2RBp/2kn1Q1b/2bb1bBB/P3R3/q1n2BN1 w - - 0 1 legal: proof: f4 g5 g4 b5 d4 c5 fxg5 cxd4 g6 f5 g7 f4 h4 a6 h5 f3 g5 a5 b4 axb4 exf3 Ra7 f4 Ra6 f5 Rg6 hxg6 Qb6 Kd2 Qa5 Ke1 Qd8 Kf2 h5 Kg3 e5 c4 Ke7 f6+ Kd6 c5+ Kd5 c6 d3 f7 e4 Kf4 e3 c7 e2 Rh2 e1B Qc2 d2 Qa4 d1Q Re2 b3 Nd2 b4 Nc4 b2 Ne5 Be7 f8B Nf6 g8N b1Q g7 b3 g6 Bb7 c8B b2 Be3 B7b4 Bd6 Qe8 Bc1 Kd4 Ne7 Ng4 g8Q Nc6 g7 Nf2 N5g6 Nd3+ Kf5 Bg3 Bg5 Bh4 Qh7 Kc4 Bg3 Nc1+ Kf6 d6 Ke6 Qb3 g8Q Qf7+ Kd7 Nd4 Kc7 Bf3 Qge8 Qe3 Bch3 Qee6 Qea8 Rd8 Nf8 Rc8+ Kb6 Rc6+ Ka7 Rc5 Qd8 Qg7 Kb8 Qbf5 Qc8 b1B Qce8 Bd3 Qd8 Kc3 Rb1 Ba5 Rb5 Qd7 Qc8 Qfe6 Qd8 Rc6 Rf5 Rc5 Qd1 Qge5 Qd2+ Kc4 Qf4 Bc3 Nfg6 Qe3 Qdh8 Qd2 Nf8 Qc2 Rd2 Qb1+ Rb2 Qa1 Rd2 Qe5 Re2 Qee6
1N3R1K/1R5P/2rbr1NR/3q1r2/1BBp4/nQ1pkrN1/3q1R1B/1Q4qn w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h5 Bg2 h4 Bf1 Bb7 Be2 Bd5 Bf1 Bf7 h3 Bh5 gxh5 g4 Bd2 gxh3 Bf4 Qc8 Bc1 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 f4 a5 b4 h2 c4 d3 c5 a4 b6 d6 b5 a3 h6 a2 h7 h3 b7 Nh6 c6 Qc7 b6 Ra7 Bd2 Na6 b8B Qb7 Nc3 Nc7 Qb1 Nb5 Nge2 Na3 Ng3 Qd7 c7 Ra5 c8Q Ng4 b7 Ra6 Qb3 Rc6 Rb1 a1R Nce2 Nf2+ Kd5 e4 Bb4 Ra2 Qd8+ Be7 Qb6 Rf8 Bc7 Rac2 b8N R2c5+ Kd4 d5 Bd6 Kg7 Ke5 Kh6 f6 Rb5 f5 Kg5 f7 e3 Nf4 e2 Bg2 d4+ Bd5 Qc7 Qb7 Qa5 f6 Kg4 Bc7 Bd6+ Ke6 Kg5 Bc4 Rf5 Ng6 Kg4 Rb2 Kf3 Qb6 Ke3 Qb5 Rc8 f8R e1R Kf7 Rf1 Kg8 Re8 f7 Re6 Kh8 Rf3 Rg1 h1Q Rb1 Qg2 Rh1 Qg1 Rh2 Nh1 Rf2 h2 Re8 Rf5 f8R Re4 Re5 Rf3 Rh5 Re8 Rh6 Re6 Qh5 Rf5 Qhd1 Qd5 Rbb2 Qdg2 Qb1 Qd5 Rfd2 R1f3 Rf2 Qe1 Ra2 Qd2 Ra1 Nb5 Ra7 Na3 Rb7 Be7 Nh5 Ng3 Na6 h1Q Nb8 Qg1 Be5 Nh1 Bh2 Bc5 Ng3 Bd6
q2Bnqq1/k2Kpb1R/1R2Nn2/1B3N2/1pP1R2r/4n3/q1BQrQ2/2R2Q2 w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 fxg5 a5 exf5 Nc6 h4 Ne5 d4 cxd4 b4 axb4 g6 Ra6 g5 Ra5 h5 Ra8 h6 Bg7 hxg7 Nc6 Bg2 Nb8 Bh3 Na6 Bf1 Nb8 Ke2 h5 Kd3 d5 a4 Kd7 f6 Kc6 f7 Kb6 f8Q h4 a5+ Ka6 Nd2 b5 Nc4 b3 Bf4 h3 Nd6 b2 Ne2 b1Q Qd2 h2 Nf5 b4 Bc7 Nd7 Nf4 Rh5 Ne6 Qe8 Bd8 Qe1 Rc1 Nh6 g8B Ka7 g7 Qf2 a6 Nf7 g6 Rh4 Bh7 Nf6 g8Q Nd6 g7 Qg1 Qff7 Qf8 Qh8 Bb7 g8R Nde8 Rg4 Rc8 Rf4 Qgg8 Re4 Bc6 c3 Ba4 Qhg7 Bb3 Qg3 Rc5 Qh3 Ra5 Qhe3 Ra2 Qdf2 Re2 Qd2 Kb8 a7+ Ka8 Rg1 h1Q Rg7 Kb7 a8R Bc4+ Kc2 d3+ Kb2 d4 Rb8+ Ka6 Rb6+ Ka7 Bg6 Ba2 Rh7 Bd5 c4 Qh2 Kb3 Qb8 Ka4 Qa8 Qd1 d2 Kb5 d3 Bh3 Rh6 Qc2 d1Q Qd2 Rh4 Bg4 Qb3 B4h5 Re3 Bd1 Re1 Bc2 Qa2 Bh5 Re3 Bhd1 Re2 Ba4 Qa3 Bdc2 Qa2 Kc5 Rh3 Bb5 Rh4 Qde1 d2 Qff1 d1N Qd2 Ng4 Qf6 Nde3 Qfd4 Ng2 Qdf2 Ngf6 Ned4 Bf7 Ne6 Qb8 Kc6 Ne3 Rh5 Nfg4 Rh7 Qa8+ Kd7 Ngf6#
1r3RNb/k3p2P/br2q2R/B7/rB3b1p/QBK1QR1N/3n3b/BqQ5 w - - 0 1 illegal: No possible last move
3rQ2N/p4BP1/kBp1K3/3RrB2/1b1Br3/1q3Q1Q/n1rnqN2/2Rn3N w - - 0 1 illegal: No possible last move
Q2KBR2/B1r4Q/bBn2R1N/1qb2p2/1n3bpR/nb2P2N/6NB/2nk4 w - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 Ke7 d4 Kd6 Kd2 c5 Kc3 f5 Kc4 h5 g6 a4 g7 a3 b6 g2 Kb5 c4 b7 c3 Bf4+ Ke7 d6+ Kf6 e3 h4 d7 c2 d5 c1B d6 a2 Nh3 g1N Nd2 Rh5 Bh2 Ne2 Nf3 Ne7 Ne1 Ba3 Ng2 Nbc6 b8R Qe8 Kb6 Rh7 Kc7 Nc1 d8Q Ba6 b5 Nb4 b6 Qb5 g8N+ Ke6 d7 Bh6 b7 Nec6 Qa4 Kd5 Qe7 Bf4+ Kc8 Rf7 d8B Rg7 Qf7+ Ke4 Nh6 Kf3 Bb6 Rh7 Rb1 a1N Kd7 Rg7 Rf8 Nac2 b8B Rh7 Bd3 Rg7 Be4+ Ke2 B8a7 Kd2 Bd3 Rh7 Bf1 Kd1 Ke8 Rg7 Qg6 Rc7 Qh7 Nd5 Qe4 Bc5 Rb2 Na3 Ra2 Ne5+ Kd8 Nb4 Qc6 Rg7 Qa8 Rc7 Ng1 h3 Rb2 Qa5 Bb5 Qa4 Be8 Qb5 Bg3 h2 Rc2 Bd6 Rc6 Bc5 Nh3+ Kd2 Re1 h1B Rcf6 Kc2 Bh2 Kd2 Nh4 Bd5 Ng2 Kc2 Rd1 Bc4 Rd7 Bb3 Rg7 Kd1 Rg5 Bd5 Rh5 Bb3 Rh4 Nec6+
7Q/4B3/K2B1R1p/1Nq1Q2B/k2bpq2/qRrb1N2/P4N1R/Nqq1r2r w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 a5 b4 g5 c4 Nf6 f3 Nd5 cxd5 Nc6 f6 axb4 f4 g4 f5 Nd4 Rh3 Ne6 Rh1 Ng5 hxg5 Ra6 Qe2 Ra5 Qd1 Ra8 Ke2 Kd7 d4 c5 d6 Kc6 f7 Kb5 d7 e5 f6 c4 d5 b6 d6 g3 g6 g2 g7 c3 g8N b3 Qd4 c2 Nf3 g1Q Na3+ Ka5 Rh2 b2 Bf4 c1Q Nc2 b1Q Nh6 e3 Kd3 b5 Ng4 e2 Nf2 e1Q Be2 b4 Kc4 e4 Qe5+ Ka4 Kc5 Qbb2 Rb1 Bh6 f8Q b3 f7 Qe8 Kb6 Bg7 d8N Ba6 d7 Rc8 Na1 Bd3 Nc6 Qa3 d8B b2 Na7 Rc3 Be7 Qd7 Bg3 Qg4 Nb5 Qgf4 Ka6 Qef1 Qd8 Qfe1 f8R Qef1 Qec7 Bd4 Rf6 Qfd1 Qe5 Qdb3 Rc6 Qc5 Re6 Qba3 Rf6 Qcd2 Qg5 h6 Ne5 Qfe3 Bh5 Rg8 Rf1 b1R Nf3 Qh1 Be5 Qf4 B5d6 Rg6 Qd5 Rg1 Qh8 Rbc1 Rd1 Qc2 Rd2 Qb1 Rb2 Rgd1 Rb3 Qe1 Nh3 Qee3 Nf2 Rh1 Qe6 Rce1 Qe5 Qec1
1R2KnkN/4rrp1/1BR3Nn/qBQP2Q1/Q3R2n/7q/pqN1n3/5R1n w - - 0 1 legal: proof: c4 b5 g4 h5 d4 hxg4 a4 d5 axb5 dxc4 e3 Rh6 Qd2 Rh7 Qd1 Rh8 d5 e5 Qf3 e4 Qd1 Bc5 f3 Bd4 exd4 e3 Nh3 Bf5 Ng1 Be4 fxe4 Rh4 Bg2 Rh6 Bf1 Rh8 Ke2 Kf8 h4 c5 b4 f5 e5 a5 e6 a4 b6 f4 e7+ Kf7 e8R g3 Kf3 g2 Kg4 c3 Kf5 e2 b5 e1N b7 f3 h5 c2 h6 a3 d6 f2 b6 a2 d7 c4 h7 c3 d5 Ra4 Na3 Nf6 Ne2 g1Q Be3 c1N Nf4 c2 Rh6 Ra7 Ng6 Ne2 Re4 c1Q Nc2 Rf8 h8N+ Kg8 Ke6 Qb2 Bc5 Qc8 Ke7 Ng4 d8Q Nd7 b8R Ng2 b7 Nh4 Bb6 Qcc3 Qc8 Qa5 Qc5 Qg2 Qdd4 Qh3 Qa4 Nd4 Bc4 f1N Bb5 Ng3 Rf1 Nde2 Ne5 Qc1 Rc6 Qb2 Neg6 Nh6 Rce6 Kh7 Rc6 Rf7+ Ke8 Kg8 Rbc8 Qf6 b8Q Nh1 Qf4 Nf8 Rb8 Qb2 Qg5 Rae7+
1kNRq1bq/1B1p2q1/4PN1R/3Qb1KN/1pqB4/1R3r1B/q2N3Q/5qn1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 Kd2 cxd4 Ke1 e5 fxe5 f4 Ba3 g5 Bb2 b5 Bc1 Nc6 h3 Nce7 h4 Nf5 gxf5 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Bb7 Rh3 Ba6 Rh1 Bc8 Kf2 h5 c4 f3 Kg3 d3 Kf4 d2 e4 h4 a4 h3 a5 b3 c5 b4 e6 b2 a6 h2 a7 f2 a8B g3 g6 g2 g7 Rh5 e7 Bb7 e5 Bc6 f6 Qc7 Ne2 g1Q Ra3 Rh3 Ng3 Bd5 c6 Nh6 g8R Nf7 Nh5 Ng5 Rb3 Nf3 Bb7 Qg7 Rh8 Qc8 c7 Ng1 Bg2 Rg3 Bh3 f1Q+ Qf3 d1Q Nd2 b1Q Bb2 Qc4+ Bd4 Qb8 c8N Bg8 Qd5 Qa2 Kf5 Qda1 Rh6 Qh8 Kf4 Rf3+ Kg5 Ne2 Re1 h1Q Rc1 Ng1 Rc2 Q2b1 Ra2 Bg7 Ra8 Qd6 Rb8 Qba2 Ra8 Qe6 Rb8 Kf7 e8N Kf8 f7 Qe7+ Nef6 Qe8 Nb6 Ke7 Nc8+ Kd8 f8Q Kc7 e6 Qaf1 Qf7 Qh2 Qg6 Qd6 Qc2 Qde7 Na7 Q7f8 Rd8 Qff7 Nc8 Kb8 Nfe4 Be5 Nef6 Qa5 Qd1 Qa2 Qe2 Qfe7 Qh2 Qeg7+
n6B/1np5/3rPn1B/2b3p1/1nQNN1nK/2Bqk2n/7N/Q1RR1qRB w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Bh3 f4 Bg2 Qd5 Bf1 Qd8 h4 a5 h5 g6 h6 Bf5 gxf5 Ra6 Ra4 Rd6 Ra2 Rd7 Ra1 Rg7 hxg7 Bb4 Nh3 Be7 Ng1 Bf8 Kf2 Kd7 b4 Kd6 d4 Kd5 e4+ Kd6 b6 h5 b5 c3 d5 Ke5 b7 h4 f6 c2 d6 a4 f7 a3 b6 h3 d7 h2 Nd2 Kd4 e5 a2 Bg2 Nf6 g8Q Bc5 f8B Rh7 Rb1 a1N Bh6 Nb3 Bb2+ Kd3+ Bd4 Na5 Rc1 Re7 Qe1 Re6 Ne4 Rd6 Qf7 Nc4 e6 Na6 b8N Nb4 b7 Nb6 Nc6 Na8 b8R Qe7 d8B Qd7 Ra1 c1N Be7 Nb3 Rc1 Na5 Rd8 Nb7 Bef8 Qe7 Bfg7 Qe8 Bh8 Qd7 Kf1 f2 Nf3 Rd5 Ba1 Rd6 Rg1 h1N Ncd4 Qb5 Qh7 Qd7 Qd1+ Ke3 Qc2 Qb5+ Qc4 Qa6 Nh2 Qa3 Bh3 Qd3+ Kg2 f1N Qg7 Nf2 Bf5 Nh3 Bc3 Nd2 Bg4 Nf3 Bh5 Ne5 Bf3 Neg4 Rd7 Nhf2 Rd8 Nh1 Kh3 Nhf2+ Kh4 Nh3 Bh1 Ngf2 Ng5 f3 Rd7 N2g4 Rd8 f2 Ne4+ Ng5 Qd7 f1Q Qa4 Qf4 Qa1 Nh3 Rgd1 Ra6 Rd5 Rd6 Rg5 Qff1 Bf8 Ngf2 Rg1 N2g4 Bh6+ g5+
1k6/1b1Qr1pQ/r7/3qNpq1/NBPN3r/1R2K3/2RB1NR1/q2bbq1B w - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 hxg4 d4 cxd4 Ke2 d5 Ke1 d3 Bg2 e5 Bf1 d4 f3 Nf6 f4 Nd5 exd5 e4 Qf3 Nc6 Qd1 Ne5 fxe5 Bb7 Qd2 Ba6 Qd1 Bc8 Kd2 Kd7 h4 Kc7 b4 f5 c4 a5 e6 g3 d6+ Kb7 h5 g2 e7 a4 e8R a3 h6 a2 b6 Ra5 d7 Rc5 h7 Rc6 b5 Rg6 Rh2 Qf6 d8B Rg5 Nh3 g1R Bg2 Bd6 Bh1 Qf7 Nf2 R1g4 Rg2 Ka8 b7+ Kb8 Ba5 Qh5 Nc3 Bg3 Na4 Rg6 Rb1 a1Q Rb3 Ra6 Bb4 Rh4 Rd8 Re8 h8Q Re7 Qh7 Ka7 b8N Bb7 Nd7 e3+ Ke1 e2 Ne5 Qg4 Bcd2 Qg5 Rd6 Kb8 b6 Bf4 Nfg4 Bh2 Kf2 Bf4 Rd5 e1Q+ Kf3 Qf1+ Nf2 Bc8 b7 Bg3 Bf4 d2 Rd8 d3 Ke3 Ka7 b8N Bb7 Rd6 Ka8 Rg6 Ka7 Nc6+ Ka8 Nd4 Kb8 Ng4 Be1 Nf2 Qh6 Rh2 Qh5 Rgg2 Qg5 Qdh5 d1Q Qf7 d2 Qe8+ Ka7 Qd7 Kb8 Rg1 Bd5 Ne4 Rh5 Nb5 Qa2 Kd4 Re8 Rf2 Re7 Rgg2 Bc6 Re2 Bb7 Nf2 Qda1+ Kd3 d1B Bc1 Qf6 Ke3 Rh4 Reb2 Q2b1 Bcd2 Qc2 Rd3 Qc3 Rc2 Qcb2 Rb3 Qba2 Nc5 Qa5 Nd4 Qb5 Na4 Qd5 Nd3 Qg6 Nf2 Qg5+
Q1R2Bq1/Pb1NQ1n1/1rpQ1K1n/1Np1BB1B/4q3/1nn5/6k1/qR1qR3 w - - 0 1 legal: proof: f4 g5 c4 f5 g4 b5 gxf5 d6 f6 g4 c5 dxc5 f7+ Kd7 e4 a6 h4 Bg7 b4 a5 e5 Bf6 f5 Bg5 hxg5 axb4 Rh2 Ra6 Rh1 Rf6 exf6 Ba6 Be2 Bb7 Bf1 Bc8 f8R Kd6 Kf2 Ke5 Kg3 Ke4 Kh4 e5 d4 h5 a4 c6 a5 b3 a6 b4 f7 g3 d5 g2 a7 b2 f6 b3 g6 Nh6 Kg5 h4 d6 h3 d7 h2 g7 Na6 g8B Nc7 Bb5 Ne8 Na3 b1N Bb2 Nd2 Nf3 g1N Ba4 Ne2 Nb5 Ng7 Bh7+ Ke3 Qe1 e4 Ne5 Qe8 Rg1 h1Q d8Q Qf3 Bc3 b2 Qd6 b1Q Bd1 Nb3 Bf5 Qb2 Rb1 Qa1 Kg6 Qh1 Nd7 Kf3 Nb6 Qe6 Nd7 e3 Bb2 Bb7 Ra8 Rb8 f8Q Qg8 f7 Bc8 Kf6 Rb6 Qd8 Qh5 f8B Bb7 Rf1+ Kg2 Qc8 Ned4 Be2 Qe8 Bh5 Ne2 Bd4 Nc3 Rb8 Ba6 Qb7 e2 Qa8 Bb7 Rc8 Qe4 Qd1 e1Q Qe7 Q1e3 Be5 Qg3 Qdd6 Qgg4 Rfe1 Qd1
R3rn1B/1P1pNp2/q1Nr3k/1bnnRbr1/3Bp3/3B4/3QN1R1/1QB3K1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 e5 Kf2 h5 g4 b5 gxh5 Bd6 axb5 Qe7 Kg3 Qe6 Nd2 Qc4 Nb1 e4 e3 Be5 fxe5 Qd3 Kg4 Qxe3 Kh4 Qd2 Kg3 Qe2 b4 Kf8 c4 a5 h4 g5 b6 Kg7 h6+ Kh7 b5 d3 b7 g4 e6 a4 b6 a3 h5 a2 c5 d2 e7 Ra7 e8R Qe3+ Kh2 Ra3 c6 Qd4 c7 Qf6 Nf3 g3+ Kg1 g2 Re5 Rd3 Nc3 Ne7 Rh2 Nd5 Nd4 Re8 Nc6 Na6 b8Q Nc5 Ne2 Ba6 c8N Bb5 N8e7 Ne6 b7 Nf8 Qd6 Qg6 Qc2 d1B Qb1 Rd4 Qdb4 Qd6 Qd2 Qa3 Nb8 Qa6 Nbc6 Kh8 h7 Kg7 h8B+ Kh7 Kf2 g1R h6 Rg5 Rg2 Rd3 Kg1 Rd4 Ng3 Bg4 Bd3 Bh3 Ne2 Bf5 Nc8 Kg6 h7 Kh6 Bf6 Nb6 h8B Rd6 Bd8 Nd5 Bb6 Kh7 Bd4 Kh6 N8e7 Qa5 Qb3 Qa6 Rb1 a1N Qbc2 Nb3 Ra1 Nf6 Qb1 Nc5 Ra3 Nd5 Ra1 Qb6 Ra8 Qa6
n1k2nK1/P1Nq1Q2/2N1rNb1/3p1B2/2p1b1bQ/3Rp1B1/3R3R/2R1rB1r w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 Ra5 Nc3 Ra7 Nb1 Ra8 d4 c5 Ba3 c4 Bc1 e6 c3 b5 Qa4 Bc5 Qb3 Ra3 Qd1 Rxc3 dxc5 Rc2 f4 d5 a4 Kd7 h4 g5 h6 e5 h7 e4 h5 g4 c6+ Kc7 a5 g3 f6 g2 h6 b3 a6 b2 a7 b4 f7 b3 f8R Qd7 f5 Qg7 f6 Qe7 f7 Nd7 Bf4+ Ne5 Nf3 g1R Rh3 Rh2 Bg3 Bf5 Nc3 b1B Nb5+ Kb6 c7 Kb7 c8B+ Kc6 Nfd4+ Kb6 Nc6 b2 Nc7 Bg6 Bf5 Kb7 Qh5 Ba2 Rc1 Rhh1 Ke2 b1B Ke3 Qe8 Kf4 Bc2 Kg5 Ne7 Kf6 Bab3 Kg7 Qd7 Re8 Bd3 f8N Bd1 Rh2 Bg4 Rd2 Nc8+ Re7 Qd6 Nd7 Nb6 Nf6 Re8 h8Q Na8 h7 Nd7 Re5 Re6 Kg8 Kc8 Qh4 Rg2 Qg7 Nf8 h8R Qd7 Qf7 e3 Re4 Bc2 Red4 Re2 R4d3 Bb1 Qg5 Bc2 Rh2 Re1 Qh4 Bb1 Rdc3 Be4 Rb3 Bg2 Rbd3 Be4
RN3r1b/5p1N/1RQ4P/Q1n1N1R1/q3pbq1/3r1BpQ/1K1N4/3b1nkB w - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 b5 g4 b4 gxh5 b3 axb3 Nd7 b4 Nb8 b5 Bd7 Ra5 Be6 Ra1 Bc8 e4 Na6 e5 Nb8 b3 Bb7 f5 Bc8 f6 Kd7 Bb2 exf6 e6+ Ke8 Be5 fxe5 d4 Ke7 Kd2 Kd6 Kc1 g5 h4 a5 h6 c5 e7 a4 e8B g4 b4 a3 h5 a2 h7 g3 b6 c4 b7 c3 b5 c2 b6 Ra6 Bc6 Ra3 Nh3 Nh6 Ng5 Rb3 Bg2 Bh3 Qf3 Be7 Nd2 Na6 b8R Nb4 b7 Re8 h8Q Qd7 Nh7 Rd3 Kb2 Nf5 h6 Bg4 Rh5 Qc8 Bh1 Na6 Rg5 Rf8 Qg2 Qd7 Qh3 Bd1 Qf6+ Qe6 Rb1 Nc5 Ra8 Ne3 b8N Nf1 Qg6 Bf6 Bf3 Kc7 d6+ Kb6 d7 Qg4 d8N Bh8 Bcd5+ Kb5 Ndc6 Kb6 Bh1 Kb5 Bdf3 e4 Ne5 Kb4 d5 c1B+ Ka1+ Kc3 d6 Kd4 d7 Ke3 d8Q Kf2 Qc6 Kg1 Rb3 Re8 Rb6 Rf8 Nb1 Bf4 Nd2 Be2 Kb2 a1Q+ Kc2 Qa6 Kb2 Bd1 Qdc7 Qa4 Qa7 Nh2 Qa5 Nf1
2K5/k4pnr/B2Bp3/1Q1R2B1/1n1PQRrb/n1p2N1b/2Nq4/RqN1R3 w - - 0 1 legal: proof: g4 g5 a4 h5 gxh5 b5 axb5 d5 e3 d4 f4 gxf4 c3 fxe3 cxd4 Ba6 d5 Bc8 Ke2 Kd7 Kf3 a5 Kf4 c5 Ke5 Kc7 b4 Kb6 h4 e6 d4 a4 h6 e2 d6 e1N h7 a3 h5 c4 d7 a2 h6 c3 Na3 Nf6 Qd3 Ka7 b6+ Kb7 b5 Ng2 Bg5 Nd5 Ne2 Ra6 Nc2 Nge3 Nc1 Ka8 b7+ Ka7 Qe4 Qe8 d8R Nf4 Rd5 Ra5 Bc4 Qc6 Re1 Rg8 h8R Na6 h7 Be7 b8N Qc5 Nd7 Bb7 Bf1 Nh5 b6+ Ka8 Bd3 Nb4 Ba6 Bc6 b7+ Ka7 Na3 Rg6 Nc2 Ng7 Rg8 Bb5 h8Q Bf1 Qh5 Bh3 Qe2 Rh6 Qb5 Rh7 Rh8 Bd8 Rg8 Qc4 Kd6 Qd3 Ne5 Qd2 Kd7 Nc4 Kc8 Na3 Nf3 Be7 Bh6 Bh4 b8B+ Ka8 Bd6 Ka7 Rb1 a1Q Bg5 Qb2 Ra1 Qb3 Rf5 Qb1 Rd8 Qh2 Rf4 Qd2 Qbe2 Rf5 Qb5 Rf6 Be7 Rg6 Rd5 Bg4 Bd6 Bh3 Bf6 Rg1 Bg5 Rg4
K7/pqRNN3/RBRp3n/P1b2b2/p3r1Qr/Q1N5/4nr1k/1Qq2B1N w - - 0 1 illegal: No possible last move
1n4R1/3b1pn1/rk2pR1N/3bp3/1B1b4/QQBPNQN1/K2b1R1q/6rN w - - 0 1 legal: proof: e4 h5 g4 b5 gxh5 b4 e5 b3 axb3 d6 b4 dxe5 b5 Bh3 Qf3 Bf5 Qd1 Bc8 f4 g5 fxg5 c6 b4 Bh6 b6 Kf8 b5 Ke8 b7 Bg7 b6 Bf8 Bb5 cxb5 c4 Kd7 h4 Kc6 d3 a5 Kd2 a4 Kc3 b4+ Kb2 b3 c5 e6 h6 Qe7 h7 Bd7 g6 Qg5 g7 Qf6 h5 Bc8 h6 Kb5 c6 Na6 b8B Bb4 b7 Qh4 c7 Qf2+ Ne2 Bd2 Rf1 Nc5 Ng3 Kc6 Na3 Qf6 Nc2 Bf4 Rf2 Ra7 Ne3 Kb6 Qf3 Ra5 Bd2 Qh4 Nh1 Ne4 Raf1 Ngf6 g8N Nc5 Bc3 Bd7 c8Q Na6 Qf8 Qg3 Bd6 Nb8 Bdb4 a3+ Kb1 b2 Ka2 Qh2 Qe7 Nc6 b8N Ne8 Na6 Bg5 Nc5 Ng7 Ne4 Ra6 Neg3 Nb8 Qd6+ Nc6 Qdd5 Nb8 Qb3 Bf4 Ne7 Re8 h8Q Rg8 h7 Bh6 N7f5 b1B+ Ka1 Bg5 Nh6 a2 Kb2 Bc2 Qa3 a1B+ Ka2 Bca4 Qb3 Bac6+ Qa3 Rc8 Qd8+ Rc7 h8R Bf4 Rg8 Bd5+ Kb1 Bg5 Qc8 Rc4 Ka2 Rg4+ Qc4 Bf4 Qb3 Rg6 Ne2 Rg1 Neg3 Bg5 Qd1 Bb2 Rf6 Bf4 Rf2 Ba1 Qf3 Bb2 Be1 Bd4 Bec3 Bg5 Nc2 Bc1 Ne3 Bd2
3n1bk1/QqP4r/1Rn3Bb/r4N1p/3Q1p2/QKr1pr1Q/2B1RN1N/7B w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Qb6 f4 Kd8 f5 Bb7 Bf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ke8 Nh3 Qc7 Ng1 Qd8 Kd2 Kf7 c4 a5 Kc2 h5 b4 e5 c5 d5 b6 d3+ Kb3 d2 b5 e4 b7 d4 g6+ Ke8 b6 d3 g7 Kf7 g5 e3 c6 Qd7 c7 Qd6 g6+ Ke8 f7+ Ke7 f6+ Ke6 Rh2 Na6 b8N Ra7 b7 Qc5 Nc6 Qg5 b8Q Nb4 Bg2 Na6 Nh3 Nb4 Nf2 Ra6 Qa7 Nh6 g8B Qh4 g7 Rh7 Ne7 Nc6 Bh1 Qh3 Ra3 Qg2 Nf5 Qf3 Qf1 d1R Qh3 Rc1 Nd2 Qg2 Nf3 d2 Ra4 d1R Rb4 Rf1 Rb6 a4+ Ka2 a3 Kb3 Rh8 Bh7 a2 g8B a1B Bg6 Ra5 B8h7 Rc4 Nd2 Qe4 Nf3 Bb2 Rg2 Bba3 Nh2 Rc3+ Ka2 Bg7 f8Q Nf7 Qd8 Bh6 Qd4 Nd8 f7 Qf3 f8Q Qe4 Nfg4 Rf3 Re2 Bc5+ Kb2 Bb4 Nf2 Qd5 Qfg7 Bf8 Qb4 Qb5 Qd4 Qa6 Qa3 Qb7 Ne4 Rg8 Nf2 Rg7 Nd6+ Ke7 Bc2 Rf7 Nf5+ Ke8 Ka2 Rg7 Kb2 Kf7 Bg6+ Kg8 Ka2 Rh7 Kb2 Rc4 Kb3 Rc3+
k3n2b/1p2PB1B/1Q3K2/4Rp2/Br2Q1r1/pRb5/2NB1qnN/nnR1N3 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 b3 a5 Rh3 a4 Rh5 a3 Rh1 Bd7 Nh3 Ba4 bxa4 Na6 Ng1 Nb4 Rh6 Nxa2 Rh2 Qb8 Rh1 Qd8 Kf2 Kd7 Kf3 Kc8 Kg4 Kb8 Kf5 h5 d4 c5 g4 c4 e4 h4 e5 f3 a5 h3 d6 h2 d5 f6 a6 c3 a7+ Kc8 g6 f2 g5 c2 g7 Qa5 g6 Qe1 d7+ Kc7 d8N Rh3 d6+ Kb6 e6 Qc3 e7 Qe1 d7 Nb4 Nc6 Rh4 Nd2 Rg4 Bb5 f1N Ba4 Qf2+ Ndf3 Nd2 Nd4 Nb1 Bd2 c1B Qe2 Bb2 Qe4 Bc3 Nc2 Nh6+ Ke6 f5 g8B Rc8 a8R Bfg7 Bh7 Rc4 Ra5 Bh8 Re5 Ka7 g7 Ka8 g8B Rd4 Bf7 Rc4 Ne3 Nc2 Ne1 Rb4 Ra2 Na1 N3c2 Bf6 Ngf3 Bh8 Rf1 h1N Rb2 Ng3 Nh2 Nh5 Rb3 Ng7+ Kf6 Rg2 Rh1 Ng4+ Kg6 Ne3+ Kf6 Rg4 d8Q+ Ka7 Qb6+ Ka8 Nd3 Ng2 Rc1 Rg3 Nde1 Rg5 Qc7 Rg4 Qb6 Ne8+
nRb3b1/2B1Nr2/BQ4p1/1NpQK3/1Pq3N1/2r1N3/kq1pQ2q/2R1R1r1 w - - 0 1 legal: proof: f4 c5 d4 e5 b4 exf4 a4 h5 g4 hxg4 c4 b5 cxb5 Rh3 d5 Nc6 dxc6 Rh8 a5 Bd6 Qa4 Bc7 Qd1 Bb6 axb6 Qg5 Bh3 Qe7 Bf1 Qd8 Kd2 Ke7 Kd3 Kd6 e4 f5 h4 a5 e5+ Kd5 c7 g6 b7 f3 b8Q a4 e6 a3 h5 g3 e7 g2 e8R f4 b6 f2 b7 f3 h6 a2 h7 Qh4 Na3 Nf6 Nb5 Rf8 h8Q Rf7 Bf4 Qh2 Ne2 g1R Rc1 a1Q Ng3 Qb2 Qg8 d6 Qe2 Nd7 Nf5 Nb6 Bg3 Ra4 Qa7 Na8 b8N Ra2 Ke3 Ra3+ Kf4 Rd3 Re1 Kc4 Qb6 Kb3 Nc6 d5 Ne5 d4 Ng4 Rc3 Ke5 d3 Nfe3 d2 Bf4 Ka2 Rf8 Be6 c8N Bd7 Ne7 Bc8 Bg2 f1Q Bg3 f2 Bb7 Qfh3 Ba6 f1B Re8 Qh4 Rd8 Be6 Rb8 Bg2 Qgd8 Bb7 Qd4 Bbc8 Rc1 Rg2 Rhe1 Rg1 Qd5+ Qb3 Nh6 Qhc4 Nhg4 Qb2 Bf4 Rg7 Kf6 Bg8 Bc7 Qh1 Ke5 Rf7 Bd6 Qh3 Bc7 Qh2+
3K4/1b1Rn1Q1/q1P4Q/q2pp3/1r2R2N/qp1rrB1B/k1n1B1N1/3NNR2 w - - 0 1 legal: proof: g4 c5 f4 f5 e4 a5 b4 axb4 g5 e6 exf5 h6 d4 Na6 dxc5 Be7 Bb2 Bf6 Bd4 Qe7 gxf6 Qd8 Bf2 Nb8 Bh4 Kf7 Bg5 hxg5 Qh5+ Kf8 Qd1 Ke8 Ke2 Kf7 Kf3 b5 Kg4 g6 c4 b3 a4 e5 h4 b2 c6 b4 h5 b3 c5 d6 c7 Nc6 h6 Nce7 h7 Qe8 a5 Ba6 c8B Bc4 a6 Nc6 a7 Na5 Qc1 Qa4 Be2 Ne7 Rh4 Rd8 h8N+ Kf8 f7 Ba6 Nf3 Nc4 Ne1 Na3 Nc3 b1Q Nd1 Rb8 a8B Rb4 Baf3 Qd3 c6 Bb7 Ra2 Qa7 Rd2 Nc2 Be6 Qa3 Bd7 Kg7 f8N Kf6 Ne6 Qda6 Rd4 Q6a5 Re4 Qa6 Rh7 Q3a5 Nc5 Qa3 Ncd3 Q6a5 Ng2 Qa6 Kh3 g4+ Kh4 g3 Nde1 g5+ Kg4 Q6a5 Ng6 Qa6 Kh5 g4 N6h4 Q3a5 Rh6+ Kf7 Kg5 Qa3 f6 Q6a5 Be8+ Ke6 f5+ Kd5 f7 Kc5 Kf6 Qa6 f8R Rd7 Nf4 g2 Rh7 g1Q Nfg2 g3 Qh6 Q6a5 Ke6 Qf1 f6 Rd8 f7 Rd7 Nge3 g2 Qg7 g1R N3g2 Rd8 Bd7 Rh1 Qh6 Rh3 Kf6 Rg3 Bh3 Rd7 Nd3+ Kb5 Nde1+ Ka4 Rg7 Qc1 Rh7 Ka3 Ke6 Ka2 Qg7 Rd8 Qh6 Rc8 Kd7 Qca3 Qg7 Rc7+ Kd8 d5 Re8 Rd4 f8Q Rd3 Qf4 Re3 Qfh6 Rd3 Rf8 Re3 Bfg4 Rgf3 Bh5 Rg3 Bef3 Qfa6 Be2 Rd3 Rf1 Rge3 B5g4 Ba8 Bgf3 Rb7+ Ke8 Rb6 Kd8 Bb7 Qh8 Nc8 Rd7 Ne7 Q8g7 Rb4+
1n4BB/Bb1NR3/pb3Kq1/p5nb/3P1QNr/q1QR3n/R1Q2R1p/7k w - - 0 1 legal: proof: g4 f5 c4 d5 cxd5 g5 f4 a6 fxg5 f4 h4 Ra7 a4 b6 a5 bxa5 g6 Rb7 e4 Rb6 g5 Rf6 h5 Rf5 h6 Bxh6 exf5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 b4 e5 g7 h5 b5 f3 f6 c4 g6 c3 b6 c2 b7 f2 f7 h4 Bc4 f1B Nh3 Ne7 g8Q Bg4 g7 Rh6 Na3 Bd7 Ra2 Qc8 Nf2 h3 Qh8 h2 g8Q Qe8 Ng4 Bc8 Qg5 Ng6 Bb2 c1Q Qc2 Rh4 Qf4 Be2 Re1 Be7 f8R Bd8 Bb3 Bb6 Nc4+ Kc5 Ba1 Qa3 d6 Kc6 d7 Bd1 Kf5 Kd5 d3 e4 Kf6 e3 Rf7 e2 Re7 Qg8 Rf1 e1N Rf2 Nf3 Bc3 Ng5 d8R+ Kc5 Nce5 Qe8 Qg3 Nf4 Bg8 Nfh3 Qf4 Qh5 Nd7+ Kc6 Rf8 Qh7 Rff7 Kd5 Be5 Qe4 d4 Qed3 Rf3 Qe4 Rd3 Bf3 Qh6 Qh7 Qfd2 Ke4 Qdc3 Bd1 Ne3 Bh5 Ng4 Nc6 b8B Bb7 Ba7 Nb8 Ne3 Kf3 Qf8 Nf2 Ng4+ Kg2 Qh6 Kh1 Rf8 Ngh3 Qf4 Ne4+ Ke6 Bc7 Bh8 Neg5+ Kf6 Qe4 Rff7 Qg2 Re2 Qg3 Rfe7 Bb6 Rf2 Qg2 Rfe2 Qe4 Rf2 Qg6+
B4Nq1/1qk2P2/Rp1bQ2b/r2Rb3/2K2NpB/pq2R2Q/1R6/B1n1nN2 w - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 h5 g4 d5 cxd5 hxg4 b3 b6 a5 Bb7 a6 Bc6 Ra2 Bb7 axb7 a5 Ra1 a4 Bd3 a3 Bf1 Ra4 bxa4 Qc8 Bh3 Qd7 Bf1 Qd8 Ke2 Kd7 f4 e5 h4 g5 d4 c5 f5 c4 d6 g3 d5 g2 a5 g4 h5 e3 a6 c3 Kd3 e4+ Kc4 e2 a7 e1Q a8R e3 f6 e2 h6 c2 f7 Qeh4 h7 e1B Ra6 Qh5 Ra2 Bg7 Ne2 g1Q Nf4 Qh3 Nd2 Qhh4 Bb2 c1B Rh3 Bg3 Qb3 Ne7 Bg2 Nbc6 Nf1 Ng6 Ba1 Qg8 Rb2 Be5 b8N+ Kc8 d7+ Kc7 d8R Nd4 Nd7 Qe7 Be4 Nc2 Nf8 Ne1 Qe3 Bd6 Bh1 Bh2 Qe6 Bd2 Re3 Ne5+ Kb3 N5d3 Kc4 Nc1 Be4 Be5 Rd7+ Kc8 d6 Qh1 Ba8 Qb7 Rd3 Qd8 Re7+ Kb8 d7 Kc7 Rd5 Bd6 Nd3 Bh6 Nf4 Bg1 Re8 Bd4 Re7 B4e5 Re8 Qg6 Re7 Rg8 h8Q Qb1 Qh7 Rg5 Qd3 Rf5 Re8 Qg5 Qh3 Qg8 d8B+ Kb8 Bf6+ Kc7 Bh4 Qc2+ Kb5 Qd1 Kc4 Bh8 Rd3 Ra5 Rd8 Bhe5 Re3 Bc5 Rdd3 Bcd6 Rd5 Qb3+
bN1Rb3/pQb1QRr1/2qnr2R/3q4/B4p2/k5pN/2PrRK1B/1Q3N2 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 g5 Nb1 f5 gxf5 Nc6 h3 Ne5 h4 g4 Nc3 Nf7 Nb1 Ng5 hxg5 Qe7 Ra2 Qf6 Ra1 Qd8 b4 Ke7 e4 Kd6 e5+ Kd5 b6 h5 f6 h4 g6 h3 b5 Kc5 f7 Kb4 b7 d5 b8Q d3 e6 d2+ Kf2 h2 e7 d4 e8Q d3 g7 Nf6 g8R Rh6 b6 Qc7 b7 Bd6 f8R Bd7 Qe7 Qc6 Nh3 Ne8 Rf7 Re6 Qc7 Rd8 b8N Rc8 Ba3+ Ka4 Qe1 d1Q Qb7 Bc7 Nd2 Nd6 Rd8 Be8 Be2 Nc4 Rb1 Nd6 Nf1 d2 Rb6 Qc4 Bb2 Qc6 Bd4 Ka3 Rg1 h1B Bb5 Bg2 Ba4 Bd5 Rg2 Qf3+ Kg1 d1R Re2 Rd2 Qb1 Qd3 Be3 Be4 Bf2 Qdd5 Bg3 Bh1 Kf2 Bg2 Na6 Rb8 Bh2 Bf3 Qa8 Rb7 Nb8 Qcc4 Rb5 Qdd3 Qh4 Ba5 Rf6 Rg7 Rf7 Bc7 Rh5 Bb7 Qf6 Qc6 Rh6 Qdd5 Qe7 Qd7 Na6 Q7c6 Qb8 Ba8 Q8b7 Rg5 Nb8 Rgg6 Rc8 Rg7 Rd8 g3+
KrBb1r2/2b1PpN1/Q5p1/3N1n2/2b4R/rNQ1N1pB/2B1nk2/5nRR w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 h6 g4 Qf6 h4 Qg6 Bg5 Qh5 gxh5 hxg5 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 b4 Kg3 e4 a5 c4 d3 c5 g4 e6 a4 e5 a3 e7 a2 e8B g6 c6 d2 c7 d6 b6 Ra4 b5 Ra8 b7 Be7 b6 Na6 Kc6 d5 b8N d4 e6 d3 b7 Kf2 h6 g3 h5 Ba3 e7 Bb2 h7 Nh6 Na3 Nf5 h6 Nd6 Ne2 Rg8 h8R Bf5 c8B Bg7 h7 Ke3 Nc3 Rf8 Nc2+ Kf2 Ne3 Be5 Nd7 Nc7 b8N Be6 Nf6 Nd5 Nh5 Nf5 Kb7 Ra3 Ng7 Nf4 Ncd5 Ne2 Nd7 Bc7 Qa4 d1N Bh3 d2 Qa6 Bd8 Rc1 a1B Nc5 Bb2 Ka8 Be5 Ba4 Bf4 Nb3 Bfc7 Nf6 Bc4 Nfd5 Nb2 Rcg1 d1R Nc1 Re1 Bc2 Rf1 Nb3 Rb1 Rg8 Nd1 h8Q Nf4 Qh6 Ne2 Rh8 Rb2 Qg5 Rb1 Qf6 Rb2 Rh4 Rb1 Ng2 Ne3 Qc3 Nf1 Nge3 Rb2 Nc5 Rb5 Nb3 Rb8+
2R1BQ2/1n1r2N1/k3B1n1/3q3B/p2RrP2/2pNQ1RR/2Qn1pnK/3nb3 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f5 axb5 fxe4 Ra5 g4 Ra6 Qd6 Ra1 Qd8 f3 g3 b3 Bg4 Ba3 Kd7 Ke2 Bh5 Bc5 Bg6 Bf2 gxf2 g4 Be8 h3 Bh5 g5 Bg4 hxg4 Ke8 d4 Kd7 b6 Kc8 b4 Kb7 g6 e5 f4 a5 d6 c5 g7 h5 b5 e3 Kf3 h4 Kg2 a4 d5 h3+ Kh2 e4 g5 e2 g6 e1N d7 e3 d6 e2 Ra3 c4 Rg3 c3 Nd2 Rh7 Ndf3 Qe8 d8R Qc6 d7 Nd3 Nh4 e1N Be2 Ng2 Nf5 Qf3 Rc8 Ne5 d8R Ba3 Rd4 Qd5 Nf3 Nf6 g8B Re7 g7 Rd7 Qc2 Na6 Bf7 Bc1 g8B Ng6 Ne1 Bd2 Ng7 Nc5 Bh5 Nfe4 Nd3 Be1 Be8 Nd2 Be6 Re7 Rc6 Rd8 Rc8 Rdd7 Rc7+ Ka8 b7+ Ka7 b6+ Ka6 b8Q Nb7 Rc8 Qb3 Bf5 Qd5 Qe5 Re6 Qe3 Re4 Rg1 Nh8 Be6 Ng6 Kh1 h2 Rh3 N2h4 Rgg3 Ng2 Qe2 Ne3 Qf3 Nd1 Kg2 h1N Kh2 Qe5 Qe3 Qd5 Rg2 Ng3 Rg1 Nf5 Rgg3 Nd8 b7 Nfh4 b8Q Ng2 Qb4 Nb7 Qa3 Qe5 Qf8 Qd5
Qn6/N3QbQR/N4pBQ/2pbb1pR/BPbNq3/R2rk1K1/1b6/2n5 w - - 0 1 illegal: No possible last move, all moves rejected
2R2Bbb/b2kq1R1/2p2P1N/2pn1bKb/1n3B2/5BR1/pQQr1RQ1/5N2 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 e4 f4 h4 d6 hxg5 Nf6 g6 Ng8 c5 dxc5 g5 Ra6 Ra2 Rf6 Ra1 Rf5 exf5 Qd5 f3 Qxf3 Nc3 Qd3 Nb1 Qd8 Ke2 e5 Kf3 h5 d4 h4 Kg4 a4 b4 f3 d5 h3 b6 e4 b7 e3 d6 a3 d7+ Ke7 b5 f2 g7 a2 b6 c6 f6+ Ke6 g6 h2 Ne2 Qe8 d8R Rh4+ Kg5 Na6 b8B Rh6 b7 Bd6 Qc2 Qf7 Nd2 Bf8 Bf4 Qe7 b8Q Nb4 Bg2 f1B Rg1 h1B Bf3 Rh2 Ng3 e2 Nf5 e1B Nh6 Be2 Nf1 Bg3 Rb1 Bd1 Rb2 Rd2 Re8 Bh2 Rg3 Kd7 Qe5 Bg2 Qec3 Bh3 Qa3 Ba6 Rc8 Bc4 Bd6 Bf5 Qab3 Rd3 Bcf4 Rd2 Qbc3 Qd8 Qe5 Ne7 g8Q Ned5 g7 Qe7 Qe2 Bb3 Qg2 Bc4 Qh7 Bb3 g8R Bg7 Qb1 Bh8 Rg7 Bc4 Rc2 Bde2 Qb2 Bb3 Be4 Bh5 Bf3 Nc3 Qg6 Bg8 Qh7 Ncd5 Qg6 Qf7 Bf8 Qe7 Qh7 Bg1 Qg6 Bd4 Qh7 Be5 Qg6 Bb8 Qh7 Rd3 Rf2 Ba7 Qg6 Rd2 Qh7 Bh3 Qhc2 Bf5
1n1kB3/BR1p3N/n1b5/3N4/3ppQn1/n1Q1P1q1/1n2NrB1/1RR1R1Kb w - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 b5 axb5 f5 g4 fxg4 h4 a5 Ra3 g5 Rc3 a4 Rf3 g3 Ra3 g4 Ra1 Ra5 bxa5 Bh6 Ra3 Kf8 Ra1 Bg5 hxg5 Ke8 f4 h5 c4 e5 c5 a3 c6 h4 e3 h3 g6 g2 Kf2 a2 f5 e4 f6 h2 f7+ Ke7 f8N Qb6 c7 Nc6 g7 Rh4 a6 Nf6 g8B Qb8 b6 Bb7 c8R Nd5 a7 Nc7 a8Q Na6 Ne2 g1N Qe1 Nf3 Nh7 Nfe5 Nbc3 Nc4 Rb1 a1N Bf7 Nc2 Bg2 Nb2 Be8 g3+ Kf1 Qd6 Qb8 Na3 Rc7 Ba8 b7 Rh5 Rg1 h1B Rc8 Qg6 Qf4 Rh2 b8R Qg7 Rb7 Ncb8 Rcc7 Kd8 Nd5 Qg6 Qc3 Qg8 Bh3 g2+ Kf2 Qg4 Re1 g1N+ Bg2 Nf3 Rc4 Ne5 Kg1 Qg3 Rc5 Ng4 Bd2 Nc2 Bc1 Nd1 Ba3 Nb2 Bb4 Na3 Rc6 Rh5 Bc5 Rf5 Ba7 Rf6 Qb3 Rf7 Rcc1 Rf8 Qc3 Rf6 Rb5 Bc6 Rb7 Rf7 Qd6 Rf3 Qf4 Rf2
1N1Q1R2/nrpP1RN1/2B2n2/1Qp3kr/1r2p3/1QR1q2b/1R5r/KrB4B w - - 0 1 illegal: No possible last move, all moves rejected
2bnQQ1n/n3Nn2/k5BR/1R3p1Q/1P2N3/2r1r1pp/rQ2KR2/B1q3N1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kd7 e4 a5 b4 f5 d6 h5 g6 c5 d5 g2 e5 h4 g7 c4 b6 h3 b7 a4 Qd4 g3 Nc3 a3 Ke2 a2 Bb2 Nc6 b8R Nge7 g8N Na7 Rh2 Qc7 Ne4 c3 Rb5 Ng6 Ne7 c2 e6+ Kd8 d7 c1R Qf2 Re8 Qf3 Qc5 Qh5 Rc3 Re1 Kc7 Ba1 Nh8 Rd1 Qb6 d8Q+ Kb7 d6 Ka6 d7 Qc6 Qc7 Qc5 Qe5 Qc7 d8Q Qc6 Bb2 a1N Rd6 Nb3 Ba1 Na5 Qg7 Nb7 Qd4 Rg8 Qf8 Nd8 Qd2 Rg6 Qb2 Rf6 Ke1 Rg6 Be2 Rg4 Bc4 Rf4 Ke2 Rff3 Ng8 Rfd3 e7 Rf3 Rh6 Rfd3 Be6 Re3+ Kd2 Qc7 e8Q Qc4 Ne7 Qc6 Ne2 g1N Rf2 Nf3+ Kd1 Qc4 Ng1 Ne5 Bf7+ Qc6 Bg6 Nef7 Rc5 Rb8 Kd2 Rb5 Kd1 Ra5 Rb5 Ra2 Kd2 Red3+ Ke2 Qc7 Qd7 Qf4 Qde8 Qc1 Rh2 Rf3 Rf2 Rfe3#
2B2nR1/4b1R1/nnP3Q1/k3b3/1Npq4/B2pB2r/2Kp2Qb/QNQ2Rb1 w - - 0 1 illegal: No possible last move, all moves rejected
r1k1b1N1/Rb4BN/p2Pn3/1r1p1QKp/1Qb3B1/2R5/6q1/NB1BbrQ1 w - - 0 1 illegal: No possible last move, all moves rejected
B1bBRN1R/np6/P4bRQ/4Q2b/qr2rp2/1Q2NN2/4k1Kp/3br1Q1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 g5 b4 e5 bxa5 e4 f4 gxf4 h4 Bb4 h5 Nd7 g5 Bf8 Bg2 Ne5 Bf3 Ng6 hxg6 exf3 Kf1 Ke7 e4 Kd6 d4 h5 a4 c5 e5+ Ke7 e6 Kd6 e7 f5 e8R c4 a6 h4 g7 f2 a5 c3 a7 c2 g6 h3 a6 Be6 Qh5 Qb8 Nc3 Ne7 g8Q Bg7 Nf3 Nc6 Nd1 Bc8 Qh6 Bf6 g7 Qc7 Bd2 c1R Ba5 Qd7 Bd8 Rc4 Rg1 Rb4 Rg6 h2 Rc1 Rb8 a8B Na7 Ne3 Qa4 Kg2 Rh7 Qf7 Rh8 g8Q f1B+ Kh1 Bc4 Kg2 Bb3 Re1 Bc2 Qgg7 Rh7 Rh8 Bd1 Qgg8 Rg7 Qfe8 Re7 Qef7 Kd7 d6 Kc6 d7 Kb5 d5 Ree4 d6 Kc5 Qa2 Kb5 Qf2 Kc5 Qg1 Kb5 Nd5 Kc4 Qe6 Kd3 Qe5 Rec4 Re4 Rc1 Ne3 Ke2 Ba5 Ra1 d8N Rc1 d7 Rcc4 Nh4 Rd4 Ne6 f3+ Kh3 f4 d8Q f2 Kg2 Rdc4 Qg8 Rd4 Nf3 f1B+ Kh1 Bh3 Bd8 Bg4 Kg2 Bh5 Nf8 Rdc4 Qc5 Rd4 Re8 Re4 Qb3 Bcg4 Nh4 Rc8 Qcd5 Rc1 Qe5 Bc8 Nf3 Bc2 Rg5 Re1 Rg6 Bd1
2RRK1r1/pQP1p3/2rNB2q/NQ1pQ3/2n3N1/Q3r3/n1Rnb1k1/6Bn w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kf2 h5 Kf3 d5 b4 Kd7 c4 Kd6 c5+ Ke5 g7 d3 c6 h4 Kg4 Ke4 g6 f3 Kg5 f2 b6 d2 c7 h3 f6 h2 f7 Bd7 f8R Na6 b7 Bc6 b8N Nf6 g8Q Qd6 g7 Rh6 b5 Qd7 b6 Qe6 b7 Qh3 Rd8 Ba4 Qe6+ Kd4 g8Q Bb3 Qde2 d1N Na3 Nb2 Nf3+ Kc5 Ne5 Kd4 Nb5+ Kc5 Nbc6 Bc4 b8Q Nd3 Qb7 Nab4 Ng4 Rc8 Nd6 Ne5 Na5 Kd4 Ra2 Ne4+ Kf5 Ba6 Rc2 Na2 Qeb5 Nc4 Qg5 Qh4 Bh3 Ned2 Qe5+ Kd3 Qg6 f1R+ Ke6+ Rf5 Rg1 h1N Kd7 Qg5 Qge6 Rf3 Ke8 Re3 Ba3 Ke2 Bc5 Kf3 Qc3 Na3 Qee5 Nac4 Qa3 Rg6 Rb1 Qh6 Rb4 Rc3 Bg1 Re3 Nf6 Ra8 Be6 Kg2 Ng4 Rb8 Qc8 Rb6 Qb7 Rc6 Rc8 Nb2 Rf4 Rg5 Rf8 Rg8 Qbb3 Be2 Q3b5 Nb1 Kf7 Nc4 Rfd8 Rg5 Ke8 Nbd2 Bg8 Rg7 Be6 Rg8+
1r2q1Q1/3NN1QN/n6B/1Rp2BP1/1pr1p1N1/K2QBkb1/R1q2q2/1q4n1 w - - 0 1 illegal: No possible last move, all moves rejected
2Q1Rb1N/R4pp1/4P2N/qkb2K2/1Bp2nNN/2q1B1b1/Q4rB1/2b2rQ1 w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 h5 a4 b5 g4 hxg4 d4 e4 c4 bxc4 d6 Nc6 d5 Ne5 fxe5 Bb7 Qe2 Ba6 Qd1 Bb5 axb5 Rh4 Ra2 Rh6 Ra1 Rh8 Kd2 Kd7 Ke3 c5 Kf4 a5 b4 a4 h4 a3 h5 g3 e6+ Ke8 d7+ Ke7 b6 Kd6 b7 c3 b8B+ Qc7 d8N e3 b5 g2 b6 e2 b7 e1B h6 c2 h7 a2 Ne2 g1Q Nc6 c4 Nd2 Kc5+ d6 Qe3+ Kf5 Ra6 d7 Rb6 d8Q Qeg3 Ned4 Qgd6 Ne5 Rb3 Ng4 Bh4 N2f3 Bhe7 Nh4 Qg3 Be3 c1B Qc8 Rb1 Bg2 Nf6 Qg1 Nh5 Ba7+ Kb4 b8Q+ Ka4 Rh3 Nf4 Bc5 Qa5 Qa8 Qe1 Rh2 Qc3 Qaa6 Rb2 Qa7 Rf2 Rh3 Qa6 Bb4 Bc5 Rh1 Qa5 Rh2 Rg8 h8N Rf1 Nh6 Rf2 Nc6 Kb5 Ne5 Rf1 Neg4 Rf2 Rb1 a1B Rb2 Rf1 Rd2 Bab2 Rd7 Ba3 Rc7 Bfd6 Re7 Rd8 Re8 Bc7 Rh3 Rd2 Rf3 B7d6 Rf2 Rb2 Rd2 Bf8 Rd7 Rbf2 Rc7 Bd2 Qaa8 Be1 Ra7 Bb2 Qe4 Bc1 Qc2 Rf3 Qb2 Bg3 Qa2 R3f2
3K1Q1B/b3P2q/Q1Rb2bN/bR2RQp1/2npp3/1rBk3N/q1r5/2Q3B1 w - - 0 1 legal: proof: e4 b5 g4 d5 d4 dxe4 a4 h5 axb5 c6 gxh5 Rh7 Qe2 Rh6 Qd1 Rh8 f4 e5 d5 e3 d6 e4 Bc4 Nd7 Bd5 Ne5 fxe5 cxd5 Ke2 Kd7 c4 Ke6 b4 Kf5 h4 g5 h6 a5 b6 f6 e6 a4 d7 a3 b7 a2 b8R Qe7 d8Q Qa7 c5 Qa5 b5 Rh7 h5 Rh8 h7 Ra7 e7 Qa6 c6 Ke5 c7 f5 h6 f4 Qd6+ Kf5 Nd2 Qa4 b6 Nf6 b7 Ra5 Nc4 Rc5 Qa6 Bg7 Nd6+ Ke5 Nh3 Nd7 Nf5 Nb6 Qc2 Re8 h8B Nc4 h7 Rf8 Nh6 Kd4 Ba3 Be5 Qc1 Bf5 c8Q Bg6 Qf5 Rc6 Rb1 a1B Rb5 Rc7 Ra8 Rb8 Bg7 Bc3 h8B Ba5 Bb4 Rc5 Be1 Bb6 Bf2 Ba7 Bg1 Qa2+ Qc2 Nd2 Qc1 Rc2 Rh2 Kc4 Bf6 Bd6 Bc3 Rf8 b8Q d4 Qe8 Rg8 Qef8 f3+ Ke1 e2 Kf2 Kd3 Rd8 Ba3 Kg3 e1B+ Kg4 f2 Rdd5 f1Q Re5 Bd6 Rg2 Nc4 Rf2 Rb2 Rc2 Rb3 Ba5 Nd2 Rc6 Nc4 Bc3 Qff2 Qe6 Qf7 Qf6 Bh5+ Kf5 Qh7+ Ke6 Bg6 Kd7 Bd2 Kd8 Be1 Qe8 Rf8 Qe6 Rf2 Qf8 Rc2 Qef5 Bd2 Ba1 B2b4 Bc3 Ba5+
k3B3/qNPq3B/5Rb1/B4B2/1q1r2np/2Rp2qr/1QQKp1n1/3R1NN1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 c4 e5 b4 a5 g7 h5 b6 d5 f6 Kd7 b5 a4 f7 f3 f8Q f2+ Kd2 e4 c5 d3 b7 Kc7 c6 a3 g6 d4 Qa4 a2 Qfb4 Qf8 Bh3 f1Q Qc2 Ne7 g8B Bf5 g7 Nd5 Bh7 Ra4 g8B Nd7 b8R Qf3 Qbb2 N7f6 Bf7 Qg3 Be8 Nf4 Rb6 Bg6 Bf5 Ng4 Rh3 Ng2 Ra6 Kb8 b6 Rc4 b7 Qfd6 Rb6 Ka7 b8N Ka8 c7 e3+ Kd1 e2+ Kd2 Qe7 Rf6 Qc5 Nc6 Qb5 Nc3 Qb4 Rb1 a1Q Nd8 Qa7 Nb7 h4 Ra1 Rg8 Rb1 Qba3 Nd5 Qb4+ Qbc3 Rg7 Ne3 Re7 Nf1 Re3 Ba3 Rf3 Rd1 Re3 Kc1 Rf3 Q3b2 d2+ Kb1 Qbb6 Bc5 Qb4 Bb6 Rb3 Ba5 Ra3 Rc1 d1Q Rh1 Qdd2 Rh3 Rac3 Rd1 Qdd3 Kc1 Ra3 Bfd7 Qf5 Be6 Qd5 Bf5 Qd7 Rh1 Rf3 Rd3 Re3 Rc3 d3 Kd2 Rd4 Nf3 Qe5 Ng3 Rf4 Rd1 Rd4 Nf1 Qed6 Ng1 Rh3 Bb6 Qe5 Ba5 Qg3
3Q2nR/r1P2r1r/Bq1N2r1/qn6/2Rp2K1/1N2p3/Q2pkbRR/B1Q1B3 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kf3 h5 b4 d5 c4 e5 g6+ Kf6 g7 Kg5 b6 a5 b5 a4 b7 h4 c5 d3 f6 h3 f7 a3 b6 d2 c6 a2 c7 h2 Ba6 Ra7 Nc3 Qd6 Nb5 Qe7 Ne2 Nh6 g8R+ Bg7 f8B Qd6 Bb2 Nc6 b8Q Rh7 Rc1 a1Q b7 Qa5 Rc4 Qg6 Rh8 Ng8 Nc1 d4 Nd6 Bh6 Qa8 Qe6 b8Q e4+ Kf2 f3 Kg3 e3 Ba1 f2 Nb3 f1R Qc1 Rff7 Be7+ Qf6 Kh3 Kf4 g5 Kf3 g6 Ke2 g7 Bg5+ Kg4 Bh4 Qd8 Qh6 Bf6 Bf2 Bh4 Qf6 Rg1 h1R Rg2 Rd1 Rh2 Rg1+ Bg3 Nb4 Qd5 Na2 Qe6 Nc3 Qd5 Ne7 g8R Qh6 Rg7 Ng8 Rg5 Qb6 Qa5 Nb5 Qa2 Qg7 Rg2 Qh6 Rh5 Qa5 Rhh2 Qe6+ Nf5 Qc6 Nd6 Qcb6 Kg5 Re1 Rg1 Rd1 Bh4 Re1 Rg3 Rg1 Rg4 Rg2 Bg3 Bg1 Be1 Bf2 Rg3 Nh6 Rg4 Rg3 Kh4 Ng8+ Kg5 Rgf3 Rgg2 R3f6 Kg4 Rg6+
3R1Q2/1Qp4q/1n2pN2/3pP1q1/5B1q/B1Rr1qN1/2nB2RB/1b1kNr1K w - - 0 1 legal: proof: g4 g5 f4 b5 fxg5 b4 h4 e6 g6 b3 g7 Bd6 g5 Ba3 g6 Ke7 axb3 Bc5 b4 Ke8 b5 Bf8 c4 Qe7 c5 Qd8 c6 Bb4 Kf2 Be7 Ke1 Bg5 hxg5 Qf6 Rh3 Qe7 Rh1 Qd8 d4 Qe7 d5 Qf6 Bg2 dxc6 d6 Qd8 Bd5 cxd5 Kf2 Kd7 Kg2 h5 b4 f5 e4 a5 b6 Kc6 b5+ Kc5 d7 Kb4 e5 f4 b7 h4 b6 a4 Qb3+ Kc5 Ba3+ Kd4 Nd2 Na6 b8B Nf6 g8R Qe7 d8B Nb4 g7 Nd7 b7 Nb6 g6 Nc2 Ne4 Qg5+ Ng3 h3+ Kh2 f3 Ba7 f2 b8B f1Q Ra2 Qd3 Nf3+ Ke3 Rc1 Ba6 Ne1 Kd2 Kh1 h2 Qb2 Qh4 Bg5+ Qe3 Re8 Rf8 g8N Bd3 g7 Rf2 Rd8 Bf5 Bh6 Qeg5 Nf6 Bg6 g8Q Bf5 Bd6 a3 Qf8 Bd3 Qb3 Bg6 Rb2 a2 Ba3 a1Q Qb5 Bd3 Qa6 Qb1 Qb7 Na4 B7c5 Nb6 Bd6 Ra4 Ba7 Rd4 Ra2 Qb3 Bdb4+ Qc3 Rb1 Bf5 Rb3 Kd1 Rab2 Qce3 Bd2 Rd3 Rc3 Qe2 Bg7 Qh7 Bh6 Qeg4 Ra2 Q5h4 Bhe3 Qgg5 Bf4 Rf1+ Kg2 Na1 Be7 Nc8 Nc2 Re3 Ne1 Bb1 Bc1 Rd3 Bg1 Nb6 Bea3 Rff3 Rf2 Nc2 Bcd2 h1Q+ Kf1 Rfe3 Rh2 Q1e4 Rg2 Re2 Bh2 Qf3+ Kg1 Rf2 Kh1 Rf1+
6R1/qp1k2p1/N5BN/4QR1K/2n1BQN1/prP5/r2bQRq1/1nqq1Q2 w - - 0 1 illegal: No proof kernel
1KB2n2/2p1Q1rp/3rQNk1/Q2RnbB1/nPpR2BQ/2b1N3/4R3/n2n4 w - - 0 1 legal: proof: f4 b5 e4 f5 g4 d5 c4 dxc4 a4 g5 axb5 Bh6 exf5 Qd6 h4 gxf4 h5 Qc6 g5 Qg6 hxg6 Bf8 Kf2 e5 Kf3 a5 Ke4 a4 Kd5 f3 b4 f2 d4 e4 g7 Kf7 g6+ Kf6 b6 a3 b7 a2 Be2 f1N Rh2 e3 Nd2 Ra3 Qa4 Rd3 Bg4 e2 Qa5 e1N Ne2 Rc3 Ne4+ Ke7 f6+ Ke8 f7+ Ke7 Nf6 Nc6 b8Q Nh6 g8B Na7 g7 Rd3 Bg5 Rc3 Ng3 Nb5 Kc6 Rd3 d5 Bd7+ Kb7 Nd4 Rd1 a1N Re2+ Ne3 Nf1 Bf5 d6+ Ke6 d7 Be7 f8Q+ Nf7 Nh5 Bf6 d8R Be5 Rdd2 Nd1 Nf6 Rg3 Kc8 Nd3 Ne3 N3b2 Rd5 Na4 Qba8 Rg2 Kb8 Rg1 Rb5 Rg3 Qh1 Rg1 Qh4 Rg2 Qc8+ Ke7 Rd3 Ne6 Rbd5 Bc3 R3d4 Ne5 Qca6 Nf8 Be6 Rg8 Bc8 Kf7 Qe6+ Kg6 Qd7 Ne6 Qd6 Rd8 Qe7 Rd6 g8Q+ Ng7 Qgd8 Ne6 Qdd7 Nf8 Qde6 Nb6 Bh3 Na4 Bf4 Rg5 Qd8 Kg7 Qde7+ Kh8 Bg4 Rg8 Qd8 Kg7 Bg5 Kg6 Qde7 Rg7
5BRN/NRB2n2/3Qb3/r1b1npb1/K1krr2R/5Pp1/3p1QB1/1Q2Q2r w - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 a4 Qg5 axb5 Qd8 g4 exd4 g5 a5 g6 Qb6 Ba3 Qa6 bxa6 hxg6 Bb2 g5 Bc1 g4 Kd2 Ke7 c4 Ke6 Kc2 f5 Kb3 g5 e4 d5 h4 g3 h5 g4 c6 d3 c7 d2 a7 d4 f3 d3 c5 g2 c6 g3 h6 Bb4 h7 Nd7 e5 Kd5 e6 Ne7 Ka4 Bb7 c8R Rb8 a8Q Ba6 c7+ Kc5 Na3 Bb7 Rb1 Nf8 Qa6 Nd7 Nb5 Re8 h8B Kc4 Be5 Nc6 e7 Nd8 Ne2 g1B Ba3 Nf7 Bg2 Bgc5 Qd6 Bd5 Nf4 Be6 Na7 Rb5 Ng6 Be3 Rh7 Bbc5 Nh8 Bg5 Bf4 Nde5 Rh4 Rb6 Qg1 d1R Qf2 Rb5 Rb8 d2 c8Q Rh1 Qb7 Rd8 e8Q Re1 Qdb6 Rd4 Qee7 Re3 Rg8 Ree4 Bb4 Ng6 Bc7 Nge5 Ka3 a4 Qed6 Rg4 Qe4 Rf4 Qee1 Rfe4 Kb2 a3+ Kc2 a2 Kb2 Bc8 Ka3 Be6 Ka4 a1R+ Ba3 Rb2 Qb8 Rc2 Rb7 Rb2 Qe8 Rb5 Qec6 Re3 Qe4 Rd1 Qb1 Ree4 Qee3 Rf1 Qee1 Rh1 Qa6 Bb6 Bf8 Bc5 Qd6 Ra5+
krB2Q2/4P3/1B4Np/N2nrBQp/5RKb/B2R1n1p/4b3/1rrbRN2 w - - 0 1 illegal: Other
2NB4/1P2b3/1BBRQ2p/nR6/1bNn1bpp/QB3r2/3b3k/rQrRK3 w - - 0 1 illegal: No possible last move, all moves rejected
1n2R1Q1/K2k2Br/5qpq/1n2qRR1/1Pp5/1N2p3/B3R1N1/1n1NnQBb w - - 0 1 legal: proof: g4 a5 c4 d5 e4 dxe4 a4 f5 gxf5 b5 h4 bxc4 f4 g6 h5 Bb7 f6 Ba6 f5 Bc8 h6 Bg7 hxg7 Ra6 Nf3 Rb6 Ng1 Rb5 axb5 Ba6 Rh5 Bb7 Rh1 Bc8 Ke2 c5 Ke3 h5 b4 e5 d4 a4 f7+ Ke7 f8R a3 d5 c3 d6+ Kd7 b6 h4 b7 a2 f6 h3 f7 c2 Ne2 h2 Nec3 Na6 b8R Rh7 Nd2 Bb7 Nb3 Rh4 Rg1 h1N Rg5 Rh7 Bc4 Bd5 Qf1 Nf2 Nd1 Qf6 Rbe8 Ne7 g8Q Nb8 Rb1 a1Q Rb2 Nc8 Bd2 Kc6 d7 c1Q d8N+ Kd7 Ne6 Na7 Nf4 Nb5 Ng2 Bc6 Na5 Bd5 Ba2 c4 Nb3 Ba8 Ke2 Bc6 Be3 Ba8 Bd4 e3 Rc2 Ne4 Rd2 Qa6 Kf3 e2 Bg1+ Qd6 Rc2 Nd2+ Ke3 e1N Rb2 Nb1+ Rd2 Qcb2 Re2 Nc6 Ke4 Qf6 Kd5 e4 Kc5 e3 Kb6 Qbe5 Ka6 N5a3 Kb6 Nb8+ Ka7 Qh2 Ree5 Qh6 Ref5 Bb7 Re8 Qae5 f8B Be4 Bg7 Bb7 Nh4 Bh1 Ng2 Nb5+
Qq2q1bk/BR2b3/rp1B1q1N/Q1p5/PN1Bb3/3N3b/BRK3Rp/7n w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 Qb3 g5 Qa4+ Nc6 Qd1 f4 h3 Nce7 h4 Nf5 gxf5 g4 Qc2 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Bd7 Bb2 Be6 Bc1 Bc8 e4 Kf7 a4 Kg7 d4 h5 Kd2 c5 f6+ Kh7 f7 g3 e5 g2 d6 h4 d5 f2 g6+ Kg7 d7 h3 e6 f3 e7 h2 e8R b3 d6 b2 Re2 Qc7 d8Q Ne7 d7 Rh7 Nh3 g1Q Na3 b1B Qe1 Rh8 Bb2+ Qe5 Nf4 Nd5 Bd4 Nc3 Ra2 Nd1 Nc2 Qg5 Rb2 Qg2 Nd3 Be7 Ncb4 Rh6 f8B+ Kh8 Rg1 Ba2 Kc2 Qg3 Rg2 Bg8 Qa5 Qf4 d8B Bf5 Bb6 Be4 Ba7 Qff6 Re3 Qb8 Be2 f1Q g7+ Kh7 Qg3 f2 Qf3 Qe1 Bf1 Be6 g8N Kh8 Re2 Rg6 Nh6 Bg8 Rd2 Qe3 Be2 f1B Rb3 Nf2 Bd1 Bd8 Bd6 Be7 Be2 Nh1 Rb2 Rg4 Rd1 Rg6 Rdb1 Qg7 Qf8 Qf6 Bg4 Qe1 Be6 Qe3 Ba2 Qe1 Rd2 Bh3 Rg2 Qg7 Bc7 Ra6 Bd6 Qf6 Qfd8 Qc7 Qa8 Qb8 Rg7 Qe3 Rbg1 b6 R1g2 Qef3 Rf7 Qh5 Rfg7 Qhe8 Rf7 Bd8 Rb7 Be7
bb1n4/Rn4R1/Q2Q2p1/6kN/1b1Bqp2/B1NB2p1/1Qq1PQRb/1K4n1 w - - 0 1 legal: proof: f4 a5 b4 b5 d4 h5 g4 hxg4 a4 e5 axb5 exf4 c4 c5 b6 a4 b7 Ra5 b5 Rh5 b6 Rb5 cxb5 c4 Nh3 Rd5 Ng1 Rc5 dxc5 Qf6 Bg2 Qg5 Bf1 Qd8 Kd2 Ke7 Kc2 Kf6 h4 d5 h5 g3 c6 a3 h6 c3 c7 d4 h7 a2 h8B d3+ Kb3 c2 Kb2 d2 Nc3 Nd7 b8Q Bb7 c8R Ne7 Rc6+ Kg5 Qa7 f5 Bg2 Nc5 Be4 Ba8 b7 Qd3 b8Q Nb7 Rc7 Nc6 b6 Bb4 Qe1 d1Q Qa6 Ncd8 Rh2 Qd5 Bd3 Qe4 Qf2 g6 Rb1 a1B+ Ka2 Qd2 Bd4 f3 Ba3 c1B+ Rb2 Qc2 Rg2 Bf4 Rg7 Be5 Qd6 Bf4 Qf8 Bb8 Nh3+ Kh6 Nf4 Kg5 Nh5 f4 Qf1 f2 Qd6 Qe3 Qg1 Qe4 Qe1 f1N Qf2 Qb3+ Kb1 Nh2 Na4 Nf3 Nc3 Qa4 Rc2 Ng1 Ra2 Nc5 b7 Bb2 Qe6 Bc1 Qb3 Be3 Qb2 Qc2+ Ka1 Ba7 b8Q Ncb7 Qc7 Bb8 Qcd6 Nf3 Qe1 Bg1 Qf2 Qb3 Kb1 Bh2 Ra1 Qc2+ Ka2 Qc6 Qa5+ Bc5 Bb4 Qd2 Kb1 Ng1 Qb6 Qf3 Ra7 Qe4 Ba3 Bb4 Qa6 Qc2+
2Rq1Rqb/3PB2b/B6k/2rr1p2/2N5/2rrpB2/1p1Q1R1q/Q1NK2RN w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 a5 b4 axb4 c4 e4 h4 gxh4 c5 Ke7 d6+ Kf6 d5 Nd7 c6 Ne5 fxe5+ Kg6 Bd2 Nf6 Bc1 Nd7 cxd7 Bg7 Bf4 Bh6 Bc1 Bf8 a4 f5 g4 h5 g5 b5 a5 c5 e6 b3 a6 h3 e7 h2 e8R e3 a7 c4 Nd2 b2 Ra2 b1R Ne2 c3 Nc4 c2 Rg1 h1Q Ba3 h4 Nc1 Bg7 Rf8 h3 Qd2 Kh7 g6+ Kh6 Qc3 h2 Qa1 Rb8 a8B b4 Be2 Be5 g7 b3 Bc5 Qg2 g8N+ Kg5 Bf3 h1Q Bb7 Qh2 Ba6 Rb5 Nf6 Kh6 Ne4 Qg8 Ng3 Bg7 Bb4 Rc5 Nh1 Rh7 Ba3 Bh8 Bb4 Re7 Rb2 Re5 Ra2 Qb6 d8R Be6 Rc8 Qd8 d7 Bf7 d6 Bg6 Ba3 Red5 Bb4 Bh7 Rb2 Qe7 d8Q Rd3 Qda5 Qd8 d7 Rcd5 Be7 Rc3 Q1a2 Ra1 Qb1 Ra3 Qa1 Rcd3 Qd2 Raa5 Rb1 b2 Rg2 Rac5 Rf2 Bc3 Nb3 c1R+ Ke2 Rc2 Rg1 Bf6 Nc1 Rcc3 Kd1 Bh8
N1K2n2/1p5Q/r1RQn3/2qq1R1N/QRq2n1B/1p1P4/p1nN2k1/1BN3r1 w - - 0 1 illegal: No proof kernel
4Bqnk/N4P2/Qn1npnrB/NR1pB1K1/2Q5/2r5/1pn1Q1N1/1nR1N3 w - - 0 1 illegal: No possible last move, all moves rejected
Rnk3B1/1pBNRQ2/r1rb1b2/1p4q1/p1BRr1pP/1b6/QNN2N2/3K4 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c6 gxh5 Nf6 c4 Kf7 d4 Qc7 a4 Ng8 d5 Ke8 c5 Qa5+ b4 Qa6 b5 cxb5 a5 Nc6 dxc6 Qxa5+ Nd2 Qa4 Nb1 Qa2 h4 Kd8 f4 a5 h6 g5 c7+ Ke8 f6 e5 c6 d5 f5 g4 f7+ Ke7 h7 d4 f6+ Kd6 Qe2 d3 Na3 e4 Kd1 e3 Nh3 d2 Nc2 a4 Nf2 Be7 f8Q Qc4 f7 Be6 c8B Qb4 c7 Bb3 Be6 Qf4 c8N+ Kc7 Nb6 Bg5 Nc4 Ne7 Nb2 Nc6 Qg8 Qe5 f8N Bf6 Nd7 Nb8 Qf7 Rc8 h8R Ra6 Rh3 Qf5 Rf3 Qe5 Rf4 Qg5 Rd4 Re8 Bc4 Kc8 Bg2 Rc6 Be4 Ra6 Bh7 Rc6 Bg8 Re4 Qd3 Ra6 Qc3 Rc6 Qb4 Ra6 Qa3 Rc6 Qa2 Ra6 Ke2 d1R Bd2 Rh1 Ba5 Rh3 Ke1 e2 Bc7 Rhe3 Kd2 e1B+ Kd1 Rc3 Bh7+ Bd8 Bd5 Ree3 Ne4 Nc6 Kc1 Bg3 Nf2 Bd6 Kd2 Rc5 Re1 Re8+ Kd1 Bf6 Rf8 Rc4 Bg8 Rc3 Bb8 Rc5 Bc4 Kd8 Ba7 Kc7 Ree4 Re6 Ra8 Nb8 Bb6+ Kc8 Bc7 Rcc6 Re3 Re4 Re2 Rf4 Re7 Re4
q1R1q1nr/nK1N2B1/3B1Nb1/1kp1pR2/1B1p2r1/2QP4/RN1pRq2/4Q3 w - - 0 1 illegal: No possible last move
5BKN/RP6/2NNpp1Q/bQ2Rnb1/6k1/2p1pq2/2n1b2R/RBq1Qr2 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 h4 f6 hxg5 Ra7 e4 dxe4 g6 Ra6 g5 Rd6 f4 Rd5 f5 Bxf5 cxd5 Bc8 Ke2 Kd7 Ke3 h5 Kf4 c5 Kf5 c4 b4 a4 d4 h4 b6 c3 b5 h3 b7 e3 d6 h2 g7 e6+ Kg6 a3 Kf7 a2 b6 Rh3 d5 Nc6 b8Q Rh8 g6 Rh6 Qe1 Rh5 Ba3 Ba6 Nf3 Qc8 Nbd2 Rh4 Ne4 Bc4 Nd4 Nb4 Bd3 Bb3 Bb1 Rh6 Nc6 Ne7 g8Q Rh3 g7 Rf3 Qh8 Rf1 g8R Bh6 Rg7 Bg5 Qh6 Nf5 Qb7+ Qc7 Kg8+ Ke8 Qa6 Nc2 Qb5 Qb7 Rh7 Qa8 Ra7 Bc4 b7 Be2 Kh8 Qd8 d7+ Kf7+ Bf8 Qa5 d8R Qa3 d6 Qc1 Qh3 Kg6 d7 Na3 Nd6 Nc2 Qg2 Kh5 Kg8 Bg4 Qgg3 Be2 Qgf2 Kg4 Qh4+ Kf3 Qh6 Kf4 Rg1 h1Q Rg2 Qh3 Rh2 Kg4 Rc8 Qg3 d8N Qf3 N8f7 Nb4 Bd3 Nc2 Rb1 a1B Nh8 Bb2 Rba1 Ba3 Rd8 Nb4 Bb1 Nc2 Rda8 Bc5 R7a5 Bb6 R8a7 Bf4 Qb3 Bc7 Re5 Ba5 Qb5 Bg5
k1r4N/p1K2b2/N1P1pQ1q/Bp3b2/2q5/1nnNqp1R/BQ6/1RQB3B w - - 0 1 legal: proof: h4 c5 e4 g5 b4 gxh4 bxc5 e6 e5 Na6 f4 b5 a4 Rb8 a5 Rb6 axb6 Be7 f5 d6 f6 dxe5 fxe7 e4 Qf3 Kd7 Qg4 Nh6 Qd1 Ng8 Kf2 Kc6 Ke3 Kb7 Kf4 f5 Ke5 h5 e8B h3 c4 h4 d4 e3 g4 h2 c6+ Kb8 b7 f4 c5 h3 d5 e2 d6 e1Q+ Ne2 Qf2 d7 Qb6 Kd6 Ne7 d8Q Nb4 g5 Ng6 Qf6 Rh5 Nbc3 Nh8 g6 Qg2 g7 Bd7 g8Q Nd5 Qgg7 Qf3 Na4 Rg5 Rb1 Nb4 Nb2 Nd5 Bd2 Nc3 Nd3 Ng6 Qc1 Ne7 Bh5 Qg4 Bg2 Qh4 Bd5 Be8 Ba2 Bf7 Qh8+ Rg8 Bg4 Na4 Ba5 Rc8 Qfb2 Qh6 Qhf6 Nc3 Qe3 Qh4 Bh5 Rh8 Qec1 Re8 Ng1 Rh8 Nf3 Rc8 Nfe5 Nf5+ Kd7 Nd4 Bd1 Rh8 Ng6 Rg8 Nh8 Nb3 Kd6 Qg4 Rf1 h1Q Rf3 Qh4 Rg3 h2 Qa3 Qe4 Qab2 Qg5 Rh3 h1B Ke7 Kc7 b8N Kc8 c7 Kb7 Kd7 Qh6 c8B+ Ka8 Na6 Qc4 Rf3 Rf8 Rh3 Bc6+ Kd6 Rd8+ Bd7 Rc8 Be8 Be4+ Bc6+ Qb7 Bd5 Bf5 c6 Qb6 Bh1 f3 Kd7 Qbe3 Kd6 Rg8 Kc7 Rc8+
b2N2nB/p1r1Q2N/pr1NPq2/RQ5q/1B1k1b2/q3Rp2/pN1B4/2R2K2 w - - 0 1 illegal: Other
8/3Q1N2/2rbBrQ1/1K3pnN/R1N5/rpp1BP2/2R1r1pk/QB1bBq2 w - - 0 1 legal: proof: b4 b5 c4 a5 g4 e5 d4 h5 dxe5 hxg4 c5 Nc6 a3 Nce7 a4 Nd5 axb5 Nb6 cxb6 axb4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 g5 e4+ Ke6 b7 f5 b8Q c5 b6 d5+ Kb5 b3 f3 d4 h5 g3 b7 g4 h6 d3 h7 d2 Qa7 g2 b8B c4 Ra4 c3 Rh2 g3 Bd3 Nf6 Ne2 g1R Na3 Rg2 Nc4 Qd4 Bb1 Rg8 h8N Qd3 Nf7 Nh7 Bc7 Bd6 Nf4+ Kd7 Qag1 Qf1 Nh5 Ng5 e6+ Ke7 e5 Re2 Qe1 d1R Be3 Rg6 Qd2 Rf6 Rg2 Ke8 e7 Kd7 e8B+ Ke6 Qa2 Bb7 Qa1 Be4 Bd7+ Kd5 e6 Bc2 e7 Rde1 e8Q Bd1 Rf2 g2 Qg8 Ra6 Qg6 Rc6 Bcb6 Ra2 Rc2 Re2 Bf2 Ra3 Be1 Bh2 Qe3 Bb8 Qe7 Bd6 Bc7 Kd4 Be6 Kd3 Qd7 Kd4 Nb6+ Ke3 Bb8 Rc7 Ba7 Rc6 Bd2+ Kf2 Be1+ Kg1 Nc4+ Kh1 Be3 Kh2
Q7/q3r1p1/2Q1p3/pnPRQ3/Q2RN3/RrBBk2b/K1Br2p1/2N2rn1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Na6 b6 Nb8 b7 Qc7 Be3 Qb6 Bc1 Qd8 b4 h5 g4 hxg4 b5 Qb6 Ra6 Qc7 Ra1 Qd8 b6 e6 Bg5 a6 Bc1 Bd6 Qd2 Nc6 Qd3 Bb8 Qd1 Ba7 bxa7 Nb8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 f4 d5 h4 a5 c5 g3 f6 g2 f7 d3 f8R d2 h5 d4 h6 d3 h7 Qf6 f5 Qc3+ Ka2 Bd7 f6 Ne7 f7 Qf6 Rd8 Be8 f8Q Na6 b8Q Nd5 Nc3+ Ke3 Rh4 Nf4 Nge2 Qf7 Qa4 Nc7 Qd6 Nb5 Ne4 Nh3 Bb2 d1R Nc1 d2 Bd3 Ng1 Bc3 Rf1 Qc6 d1R Qe5 Rb8 a8B Qa7 Rd5 Bh5 Bb7 Rhf8 h8Q Bg4 Bc2 R8f2 Ba6 Bh3 Qg8 Rb7 Qa8 Rff7 Rf4 Rd2 Rg4 Nc7 Bd3 Rb3 Ng5+ Kf2 Rgd4 Rb8 Ne4+ Ke3 Ka3 Re7 Ra2 Rd8 Kb2 Rb8+ Ka1 Rb2 Ra3 Rb3 Ka2 Nb5
1n3R1r/1N1pB1N1/1R2pQnQ/2r2n1n/5Rbp/6Np/3k1P2/K1RB1B1q w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 b4 a5 h4 gxh4 Nh3 a4 Ng1 Bh6 Qf3 Bf4 Qe2 Bc7 Qd1 Ba5 bxa5 Bb7 Be2 Ba6 Bf1 Bc8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb2 Ke4 g4 h5 b6 h3 g5 d3 b7 d2 f6 h4 f7 e6 f8R Kd4 a6 Rh6 c5 Rh8 a7 Qc7 c6 Ke4 g6 Na6 b8R Rh5 g7 Nf6 g8Q Ng4 Na3 Rg5 Rb6 Qd8 c7 Nb8 Nc4 Bb7 c8N Ne5 Ne3 Ng6 Qf7 Rc5 Ne2 Kd3 Qf6 Bf3 Nf5 Bg4 Ncd6 a3+ Kb1 Qc8 Ng7 Qc6 Nb7 a2+ Kb2 Qf3 Rb1 a1N Ng3+ Qe2 Qa4 Nb3 Qaf4 Nd4 Ka1 d1N Ba3 Nf5 R1b4 Nc3 Qh6 Nd5 Rf4 Kd2 Rg1 Qe4 Bb4+ Rc3 Be7 Rc5 Rh1 Na6 Rg1 Rd8 a8B Nb8 Bc4 Qh1 Rc1 Rdc8 Bf1 Re8 Na5 Rd8 Bc6 Rc8 Ba4 Re8 Nb7 Rec8 Qfg5 Nf6 Bd1 Nh5 Qf6 Rd8 Rf7 Rg8 Rf8 Rh8
RRQN2BQ/b1pK1nBR/Nb5p/3P2p1/5Nqb/4pn1Q/1br2k2/N7 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 f4 d5 e4 fxe4 h4 dxc4 f5 Bg7 h5 Bf8 f6 Bf5 gxf5 Nh6 Rh3 Rg8 Rh2 Rg6 hxg6 Ng8 Rh1 Qd3 Bh3 Na6 Qa4 Nh6 Bg4 Kd8 Bh5 Bg7 Qc2 Kd7 Kf2 Rh8 Qd1 Ke8 Be2 Qd8 Ke1 Nb8 Bd3 Bf8 Bf1 Ng8 Ke2 Kd7 Ke3 Kd6 Kd4 e3 b4 a4 f7 e6 b6 e2 b7 e1B b5 a3 f6 a2 b6 c3 g7 c2 Na3 Qe8 Bc4 Qa4 Qf3 Qa8 Nh3 Qa7 Nf4 Bg3 Bb2 c1B Nc2 Nh6 g8Q Bh4 Qh3 Nd7 b8N Qa4 b7 Ne5 Na6 Nf3+ Ke4 e5 b8R Kc6 d4 Bc5 f8N Ba7 f7 Be3 N8e6 Bef2 f8Q Nf7 Kf5 e4 Qc8 Bg1 Rd1 a1B Nd8+ Kd6 Bc3 Bb2 Ra1 Qd7+ Kf6 Qg4 Ra3 Bb6 Na1 Ba7 Be6 Be3 d5 Beb6 Qg7 Rf8 Qh8 e3 Nb4 Kc5 Ke7 Kb5 Na6 Kc4 Kd7 h6 Rf1 Rg8 Ra5 Rg6 Bg7 Rf6 Ra8 Kc3 Rb5 Kd2 Rf2+ Ke1 Rb4 Rf5 Rb3 Nd6 Bg8 Nf7 Rb4 Ba5 Rbb8 B5b6 Rg2 Kf1 Rc2+ Kg1 Rc4 Kf2 Re4 Qg2 Re5 Rf6 Re4 Rc6 Re7 Rc2 Be5 Nd6 Rh7 Nf7 Bg7 Qg4+
1kn1B2R/1pN2rb1/1Q5n/1RpqR1nN/1pK5/1RQ3pQ/1PN3n1/4Br2 w - - 0 1 legal: proof: e4 d5 a4 f5 exf5 h5 c4 a6 cxd5 Bd7 g4 Bb5 axb5 hxg4 Bc4 axb5 Bd3 Rh5 Bf1 Rh8 Ke2 Kd7 Kd3 Kc8 f4 g5 h4 e5 f6 c5 d6 b4 f5 g3 f7 e4+ Kc4 e3 d4 g2 f6 g4 d7+ Kc7 h5 e2 d5 e1N h6 g3 d6+ Kc6 h7 Na6 Nh3 g1N Qg4 Ng2 Na3 Qc7 d8Q Bg7 f8R Qd7 f7 Nh4 Bd2 Ne2 Nc2 Ra7 Ra5 Ng1 Qf6 Qf5 d7+ Kc7 Nf4 Ng2 Nh5 Nh3 Be1 Nb8 Qc3 Nc6 Rb5 Nf2 Qh3 Nce7 d8Q+ Kc6 Qb6+ Kd7 Ra8 Ra1 Ra3 Kc8 f8N Kb8 Ne6 Nh6 Nc7 Nc8 Rb3 Rf8 h8R Rf7 Re8 Rc1 Re5 Ne4 Be2 Rb1 Bf3 Ng5 Bc6 Qf3 Be8 Qc6 Bf2 Rf1 Be1 Qe4+ Qd4 Qg4 Nf4 Nh7 Qh4 Nf5 Qc3 Qf3 Qg4 Ng5 Rh8 Qc6 Nh5 Nh6 Qh3 Qd5+
k2b2RB/q1pN2KN/1pp2B2/3RrQ2/3bbqR1/N2QBn2/P1p1B2q/8 w - - 0 1 illegal: Other
3Q1q1N/k1B4K/qpQ1RP2/bp2B1R1/BrBpQ3/Rb6/4rNbp/1q6 w - - 0 1 legal: proof: g4 f5 gxf5 c5 b4 g5 f4 a6 h4 g4 d4 cxd4 e4 g3 b5 axb5 e5 Nh6 f6 Nf7 f5 Ng5 hxg5 Qb6 Bg2 Kd8 Bf1 Kc7 Rh4 Nc6 Rh1 Nd8 e6 Nf7 exf7 Kc6 Rh6 Qc7 Rh1 Qd8 Kd2 Kb6 Kd3 d5 a4 e5 c4 h5 g6 g2 c5+ Ka7 c6 h4 c7 b6 g7 h3 g8B h2 a5 Bd7 c8Q Be8 a6 Bg7 f8B Qc7 f7 Qb7 f6 Qc7 Bb2 Qc6 Nd2 Qc1 Ndf3 Bc6 Bd6 Bf8 Nh3 g1Q Nh4 Rb8 Nf2 Qcg5 Ra3 Rb7 Bc7 Bb4 f8R Qh6 Re8 Ba5 Re6 Qf8 Ng6 Rh4 Nh8 Qg4 Rg1 e4+ Kc2 e3 Kd3 Qf4 Rg5 e2 Qb1 e1Q Qd8 Qeb4 Qe1 Qa4 Qe4 Qc1 Be2 Qa1 Bd1 Rg4 Bc3 Qab4 Ba4 Qbb1+ Ke2 d3+ Kf3 d2 B3e5 d1B+ Ke3 Rg3+ Kf4 d4 Kf5 Rb3 Kg6 Rb4 Kh7 Bb3 Bf7 Rb8 Bg8 Ka8 a7 Kb7 Qf5 Bg2 Qe4+ Ka6 Bf7 Rb7 a8Q+ Ra7 Qad5 Ra8 Q8d7 Ka7 Q5c6 Rd8 Qe8 Rd5 Qc8 Rc5 Qd8 Rc2 Re7 Re2 Bc4 Qc3 Re8 Qg3 Re7 Qg4 Re8 Qc8 Re6 Qa6
1q4Qn/R1pqB1qR/1kr5/NNppKpNr/1N2B3/6rP/1n6/1Q2Q1B1 w - - 0 1 legal: proof: d4 e5 c4 h5 e4 h4 a4 h3 f4 exf4 b4 b6 c5 bxc5 gxh3 Ba6 h4 Bd6 h5 Bb5 axb5 Be5 dxe5 Ke7 Qd5 Kf8 Qd1 Ke8 Kd2 d5 b6 Kd7 h6 Kc6 b5+ Kb7 h7 g5 e6 f5 e5 a5 e7 f3 Ke3 a4 e8Q a3 e6 a2 e7 f2 Na3 g4 Kf4 g3 Nh3 g2 Ke5 g1Q Bg2 f1Q Bg5 Ra6 Be4 Qe1 Qb1 Nf6 Qg8 Qge3 e8Q Nh5 Be7 Q1g1 Ng5 Ka8 b7+ Ka7 h3 Rc6 b6+ Ka6 Nb5 Qd7 Rh2 Nf4 Rg2 Ka5 Re2 Na6 b8N Qb3 b7 Nb4 Na6 Kb6 b8N Rh6 Nc6 Ng6+ Kf6 Qg4 Na5 Nd3 Nb4 Qg1 Rg2 Nb2 Rg4 Qg2 Rh4 Rh5 Qg7 Rg8 h8B Qgg3 Qh7 Qg2 Bg7 Nh8 Ke5 Qg1 Bgf6 Rg6 Qhg8 Rgh6 Kf4 Rg6 Bd4 Rc6 Ke5 Qg2 Bg1 Qg4 Qd3 Qg2 Rf1 a1R Qb1 Ra3 Rf2 Qc4 Rc2 Rg3 Rc3 Rhh6 Ra3 Qb3 Rh5 Rhd6 Rh7 Rh6 Nb7 Rh5 Ra7 Qgf3 Na5 Qg4 Nf3 Qg6 Ng5 Qg7+ Kf4 Nd1 Bc2 Rg2 Bd6 Qh6 Nd3 Rd2 Na3 Qhg7 Qe1 Rg2 Be7 Qb5 Nb4 Rg3 Be4 Nb2 Bd3 Qc8 Bc2 Re6 Be4 Qbd7 Nb5 Rf6 Ke5 Qb8 Bd8 Rc6+ Bf6 Qgf8 Be7 Qg7+
4b1n1/1N1P4/qB1Brk2/2pq1NNq/2QpQB2/5pRQ/2p3R1/1Bq3rK w - - 0 1 illegal: No possible last move, all moves rejected
5q1R/3p3K/b2n1Nr1/n2R2NB/3pP2R/2Qp1B1p/n1p2k2/BN1Q1rR1 w - - 0 1 illegal: Other
3BN1Rb/p1qp1p1B/1P5Q/1pR3QB/k1N1n1B1/3KbQ2/1rp2N2/3r3q w - - 0 1 illegal: No proof kernel
rn1R2Q1/pp5P/8/1B1q1N1k/Q3pRrB/q2pR3/3NpR1q/QNnK4 w - - 0 1 illegal: No possible last move, all moves rejected
1N2B3/N3pNq1/p1Bb1B1p/2prp1QR/3k1bp1/1K5Q/2P1Rb2/3bN1Q1 w - - 0 1 illegal: No proof kernel
1r1b3b/1kr2Kn1/1r3Bn1/2RRq2B/3rQ3/B3rNB1/3PQNQ1/1q3bRq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 Kc7+ Ke5 f5 g4 a5 b4 c4 e4 a4 g5 c3 b6+ Kb7 d6 c2 b5 a3 d7 a2 Ke6 f3 e5 f2 g6 f4 g7 h3 Na3 f3 Rh2 h4 Qe2 Ne7 g8R Ra6 Qd1 Qe8 Nb1 Nbc6 Be2 f1Q Ba3 c1R Rg5 f2 Bh5 Nd8+ Kf6 Qd3 e6 f1R+ Nf3 Re1 Nc3 Re3 Rd5 Qb1 Ne4 Rc7 Qe2 Ng6 e7 Ne6 d8B Ng7 Nf2 Rg8 Rg2 h2 Rg1 h1Q Rc1 h3 Rcc5 Qbg1 Rf1 h2 Rd1 Bh3 Rf1 Qd7 e8Q Be7+ Kf7 a1B Re1 Qg3 Rg1 Rh8 Qg8 Qe5 Qe8 Bf1 Qg8 Kb8 b7 Rb6 Qh7 Ka7 b8B+ Kb7 Qg8 Qg4 Qh7 Qb4 Qg8 Ra6 b6 Qb1 Qe8 Rg8 Qa4 Bb2 Qg4 Ra4 Qg3 Rd4 Qg2 Rd7 Bbc7 Bf6+ Be7 Rb8 Bd6 Bg5 Bc7 Rd6 Bf6 Rc6 Bd6 Rc7+ Bde7 Rb4 Nd4 Ne8 Nd1 Ka8 Nf2 Rbc8 Nf3 Rb5 b7+ Ka7 Rd3 Qg3 Be5 Rb6 Qh3 Qhg2 Rd4 h1R Qg4 Rh4 Qh3 Qh1 Qg2 Ra8 Rd3 Kb8 Bf4 Bh8 Rd7 Ng7 Rd6 Qg4 Bg3 Qge4 Rd3 Qe5 Rd7 Re6 Rd3 Ka7 b8Q+ Ka6 Qb4 Rb6 Rd4+ Kb7 Rdd5 Rb8 Qd4 Rhe4 Qdd3 Rd4 Qe4 Rcc8 Bf8 Bd8 Be7 Rcc6 Bf6 Rc7+
rK2n1Q1/B2Q2b1/b3r1r1/n2N1n2/1Q1Bn3/qB2R1P1/R1bRq3/R2n2Nk w - - 0 1 illegal: No possible last move
B1Nrkbq1/1Q3nQ1/b4B1R/1b2nQ1q/2nr1P2/2n1N1KB/1RqnRB2/8 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 h5 d4 a5 b4 e5 f4 c5 Kf2 h3 b6 a4 d6 a3 d5 c4 g5 e3+ Kg3 h2 b7 c3 b5 e4 g6 a2 g7 c2 b6 e2 Na3 e1N Qg4 e3 Ne2 Ra4 Nb5 Nc6 b8Q Na5 b7 Nf3 Bh3 Nh6 g8B Nc4 Na7 Nfd2 Nd4 e2 Nf5 e1N Qg7 Nf7 Ne3 Nef3 Qa8 Bd7 b8R Bb5 Nc8 N3e5 Qb7 Nb1 Bh7 Nc3 Be4 Rg8 Bd2 c1Q Be1 Qc2 Bf2 Rh8 Rhe1 h1Q Re2 Rb4 Rb1 a1N Rb2 Nb3 Ra8 Nbd2 Ra6 Qd7 Rb6 Qf5 Bf3 Qh7 Bfg2 Qg8 d7+ Kd8 Rh6 Ba6 Nb6 Ke7 d8B+ Ke8 d6 Qhd1 Bf6 h4+ Kh2 Ra4 Nc8 Bb5 Bg4 h3 Kg3 h2 B4h3 h1B Bf3 Bg2 Bd5 Bf1 Be4 Be7 d7+ Kd8 Bg6 Na3 Qg2 Qf8 Re1 Ba6 Bd3 Qh5 Be4 Bfb5 Re2 Rd4 Ba8 Nac4 Qh1 Qg8 Qc6 Qgh7 Qe6 Re8 Qf5 Qg8 Bag2 Kc7 Ba8 Bf8 d8Q+ Kb8 Qd5 Kc7 Ne7 Rc8 Qh1 Kd8 Qd5+ Ke8 Qb7 Rcd8 Nc8 Qb1 Bg5 Qc1 Bf6 Qc2
Q6Q/1B1Rb1b1/5qn1/nkrBQb2/NB3P2/1N1q4/1r1rB1nr/1RK2R1r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 c4 h5 g4 d5 b4 Kd7 f4 e5 f6 a4 g5 e4 g6 d3 f7 a3 g7 h3 c5 e3+ Ke1 d4 b6 Kc6 b7 h2 Bd2 h4 Qg4 a2 Kd1 e2+ Kc1 e1N Qg2+ Kb5 c6 h3 c7 Rh5 Ne2 Bf5 c8B Ne7 g8B Nbc6 b8Q+ Qb6 Qg7 Na5 Bb7 Qf6 Qh8 Ng6 Qe5+ Bc5 f8R Ng2 Rd8 Rb8 Rg1 h1R Rd7 h2 Bgd5 Be7 Bc3 Rg5 Nd2 Rh5 Rb1 a1B Nb3 d2+ Kd1 Bg4 Kc2 d1R Be1 Rd2+ Kc1 d3 Nc3+ Kb6 Na4+ Kb5 Be2 Bd4 Qe4 Re5 Rf1 Bf5 Bg8 Rd5 Qe5 Bc3 Bf7 Rc5 Be6 Rg1 Bg8 h1R Bgd5 Rh2 Be4 Kc4 b5 Rgh1 b6 Kb5 Bbd5 Rb2 b7 Rd8 Kd1 Bd4 Bb4 Bc3 B2f3 d2 b8Q+ Nb7 Qa8 Na5 Ke2 Bd4 Kd3 Bc3 Be2 d1Q+ Nd2 Rdc8 Ba2 Qf7 Qed5 Bg7 Qe5 Qf6 Bf7 Rc6 Ba2 Re6 Bb3 Bh3 Bb7 Rb6 Bg8 Qc1 Nb3 Rd6+ Ke4+ Qc4+ Kf3 Rdd2 Bgd5 Bf5 Kf2 N2h4+ Ke1 Rdc2 Kd1 Ng2 Qc3 Rd2+ Kc1 Rg1 Qh4 Qd3 Qhh8 Nc4 Qd4 Rgh1 Qe5 Na5+
Bb1K1R1Q/2r2bNr/3n3k/P3q1n1/1N1r1q2/BR2R3/BR2N2b/Q2q2rr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kg7 Ke4 h5 Ke5 b5 d4 c5 g4 b3 a4 b2 f4 b4 d6 h3 d5 b3 a5 h4 f6+ Kh6 f7 h2 d7 c4 Ke6 h3 d6 c3 Qd2 c2 Nf3 Nc6 Ra3 Ra7 Ng5 Nf6 f5 Nh7 f6 Qc7 Qd4 Ne5 Bg2 Nc4 Re1 h1R Ba8 h2 Nc3 b1R Ne2 b2 Rb3 Rg1 Qc3 Bg7 f8Q h1R f7 Qb8 Qe8 Be5 f8R Bh2 Qe5 Ba6 d8R Rc7 d7 Nd6 Qd4 Qb4 Rb8 Bc8 Qe5 Qf4 Qc3 Bb7 d8N Ra1 Qe5 b1Q Nc6 Ra4 Qa1 Rd4 Ba3 Qd1 Nb4 c1B Rb2 Be4 Rb6 Bg6 Rb7 Rc8 Kd7 e5 Ne6 e4 Ng7 Rc7+ Kd8 e3 Rb8 Bf7 g5+ Kg6 Nc2 Bd2 R8b3 Bb4 Qe5 Bc5 Qe8 Ba7 Nb4 Bb8 Qe5 Nf6 Qe8 Nfe4 Qe5 Kh7 g6+ Kh6 Nh5 Nf6 g7 Nfe4 g8B Rh7 Qh8 Ng5 Ng7 Rd5 Rf1 Rd3 Rf3 Rd4 Nc3 e2 Re3 e1Q Ne2 Bh5 Rbc3 Be8 Ba2 Bf7 Rcb3 Qeg3 Bb1 Qe5 Ba2 Qgf4
n2q1qr1/5Bb1/2Rr1n1P/3bR3/kN6/bbK1Q1R1/4R1bq/2NQBBnN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 b4 c5 h4 f5 e4 a5 b6 a4 b7 a3 b5 a2 b6 f3 d6 Kc6 e5 f4 h5 g3 e6 f2 d7 g2 e7 g4 e8B c4 h6 Kb5 d5 g3 d6 f3 Bf7 Na6 b8Q Nc7 b7 Ra6 Ne2 g1Q Qa7 g2 b8R+ Bb7 Rh3 Nf6 Rg3 Na8 Qe3 Rg8 Kc3 Qh2 Rc8 g1N Nd2 Bd5 Nb3 Bg7 Bd2 Ka4 Be1 Rc6 Rb1 a1Q+ Rb2 Qa3 Rc2 Qc5 Nbc1 Rb6 Rc6 Qa3+ Kd4 c3 Ra2+ c2 Rb2 Qc7 d8R Bb3 d7 Qf8 Re8 Qd8 Kc3 Ra6 Na2 c1B Re5 Rb6 Rc2 Ba3 Nac1 Bd5 Rc7 Rd6 Rc6 Qb8 d8N Qc8 Ne6 Qcd8 N6f4 Bb3 Nfd3 Bd5 Bg2 f1B Nb4 Bb3 Bh3 Bg2 Rd2 Bh1 Bf1 f2 Rf3 Nc7 Ng3 Na8 Rc2 Bg2 Nh1 Bd5 Re2+ Bb3 Rg3 Bd5 Bh3 f1B Qed4 Bfg2 Qe3 Bgf3 Bf1 Bg2
nnqB3N/nNr1R1b1/3P3B/4B1n1/bNR2Qq1/Qqr1r2n/5QBK/1k6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 Kg2 h5 b6 f5 d6 a5 d7 c5 e5 a4 b7 a3 g5 a2 g6 h3+ Kh2 c4 g7 f3 e6 c3 e7 f2 e8N c2 d3 h4 b5 f4 b6 f3 Nd6 Ra3 Nd2 Kc3 d4 Ne7 g8Q Bg7 d5 Nec6 Ba6 f1Q N6c4 f2 d6 Qe2 Ne5 Na7 Ndc4 Rh7 Nc6 Qg4 Bh6 c1R Qf3+ Kc2 Ne2 Re3 N4a5 f1Q Qff7 Qff3 Re1 Qe8 d8B Bd7 Rb1 a1N Nf4 Nb3 Ng6 Nd2 Qf4 Nc4 Rb4 Qd1 Ra4 Kb1 Nh8 Qb3 Qgf7 Qf8 Bf6 Qc8 Nb4 Bb5 Re2 Rcc3 Be5 Be8 Bb5 Bd7 Bc6 Be8 Kh1 h2 Bg2 Bc6 Raa2 Ba4 Rac2 Na3 Q7f5 N3b5 Qf2 Nc7 Q5f4 Nd7 b8Q Na8 Qc7 Nb8 b7 Bf6 Qcc4 Rc7 Qd3 Bg7 Bf3 Qh5 Kg2 h1N Kh2 h3 Bg2 Qhg4 Qa6 Ng3 Qd3 Nd7 b8B Ne4 Nb7 Ng5 Qa6 Bc6 Qa3 Ba4 Kg1 h2+ Kh1 R7c4 Bc7 Nb8 Bd8 Rc7 Bf3 Rcd3 Rc4 Rc3 Bd5 Qgf5 Kg2 h1N Kh2 Qg4 Bg2 Nh3 Rd2 Ng3 Rd5 Ne4 Rdc5 Rd7 Rc7 Rf7 Re7 Neg5 Re8 Rd7 Re7 Rc7
3n1BQN/b7/QQP2qq1/1BR3q1/B3q2N/1r1r3k/qR1n2b1/NQKn1r2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 a5 b4 d5 g4 h5 c5 e5 b6 e4 b5 e3+ Kc2 h3 b7 d3+ Kb2 a4 b6 d2 Qe1 d1Q Rh2 h4 Qb4 d4 Ra3 e2 Nd2 e1R Bb5 d3 Qc4 Rf1 Rc3 Nc6 b8Q Bb7 Nb3 d2 Nf3 Qe2 Na1 d1N+ Kb1 Qee8 Ba3 Qg6 Rb2 h2 Kc1 h3 Nh4 h1Q Qe2 h2 g5+ Kg7 Rc4 Qg2 f6+ Kf7 f5 h1Q Qa7 Rb8 Qe4 Qd5 Qb1 Nd8 Qa6 Qhg1 Bb4 a3 Rcc2 Bc6 b7 Qde4 Rc3 Bd5 c6 a2 Rc5 Bd6 Ba4 Bc7 Bb5 Bb6 Ba4 Ba7 Bb5 Ke8 f7+ Ke7 f6+ Ke6 f8N+ Ke5 f7 Kf4 Ba3 Kg3 Ba4 Qf6 g6 Kh3 g7 Rh5 Nfg6 Qgg5+ Rd2 Q1g4 f8Q Qg4f5 Nh8 Qf5g6 Qf7 Rh7 Qc7 Rh6 Qcb6 Rh5 Nc2 a1Q Bb4 Qa2 Na1 Qe2 Ba3 Bg2 Bb5 Qee4 Bb4 Ne7 g8B Nc8 Bb3 Nd6 B3a4 Nc4 Ba3 Rh7 Bb4 Rd7 Ba3 Qge5 Rb2 Nd2 Bb4 Qeg5 Ba3 Ra8 b8Q Rd3 Qbc8+ Qef5 Qe6 Rb8 Qg8 Rb7 Rc4 Qe4 Bf8 Rb3 Rcc2 Rd7 Rc5 Rdd3
brr5/1Nq2Q2/Pk2B1n1/1q4Qn/Bn1R1N1B/2q1r2q/5R2/QQ2RqbK w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 d4 c5 g4 Kc7 f4 b5 Kf2 h5 Kg2 e5 d6+ Kb6 d5 c4 f6 c3 g5 e4 g6 b3 f5 b4 f7 e3 g7 c2 f6 b2 d7 e2 d6 e1R Ne2 b3 Na3 b1Q Nf4 b2 Rh2 h3+ Kh1 h4 Nb5 Na6 Rf2 Ne7 g8B Qc7 d8R h2 d7 Nb4 Nd6 Rb8 Nb7 Re3 Bb5 Ng6 Bc6 Be7 f8Q Bc5 f7 Bd4 Bd2 c1Q Qg7 Qc3 f8Q Qbc1 Qff6 b1Q Qff7 Qbb2 Qg1 Qf1 Be1 Qbe2 Rd1 Qb5 Re8 Qh3 d8Q Bf5 Qdg5 Be4+ Q1g2 Bc5 Rd4 Bd5 Qe4 Rc8 Na5 Rb8 Bd7 Ba8 Nb7 Rc8 Qb1 Rb8 Bh7 Rf8 Re5 Rfc8 a5+ Ka6 Rg2 Rd3 Be6 Qc2 Rc4 Bg1 Ree4 Ne5 Bf2 Qf3 Re1 Re3 Re4 Ka7 a6 Kb6 Bhf5 Ng6 Qga1 Q2c3 Rd4 Qfe2 Bc2 Qf1 Bg3 Qfd3 Rge2 Qdc4 Kg2 h1N Bh2 Ng3 Red2 Nh5 Rf2 Qe2 Bg3 h3+ Kh1 h2 Kg2 Qec4 Ba4 Re2 Bh4 h1Q+ Kf1 Qh2 Qe5 Qhg3 Qg5 Qge3 Kg2 Qed3 Kh1 Qh3+ Rh2 Re4 Qe8 Re3 Qf7 Qhf5 Rb2 Qf1 Rf2 Q5h3+
nnnRNbr1/6rP/1Qq1BN1B/3r1q2/3R4/2kbQQb1/6nK/1n1B1Q1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 d4+ Kc4 b4 c5 h5 g5 d6 a5 h6 f5 h7 a4 d5 f3+ Kh2 f2 d7 f4 d6 f3 b6 a3 b5 a2 b7 Ra5 b6 Ne7 Bg2 Rg8 Nd2+ Kc3 e4 c4 e5 Rd5 e6 f1Q Rb1 a1B Bh3 f2 Rb4 Qe8 d8Q Qc6 d7 Qd3 Qc7 Qf5 d8N Rg7 Nf7 f1N+ Kg2 g3 Nd6 g4 Ne8 Bd7 Qf4 Nc8 e7 Rg8 Rh2 Ne3+ Kh1 Be6 Qdf1 Ng2 Qh6 Bf7 Qh5 Bg6 Ne4+ Kc2 N4f6 Be5 Be3 c3 Ne2 Kd3 Bg5 c2 Bh6 c1N Rd4+ Kc2 Qg5 Na2 Qe3 Nc3 Kg1 Na4 Rh1 Nd7 b8Q Bd6 b7 Nab6 Qa7 Na8 Qef3 Nb8 Qaa3 Be5 Qae3 Kb2 Nc1 Rg7 Nd3+ Kc3 Rh2 Qg5 Nf2+ Bd3 Nh1 Qf5 Qee2 Nh4 Rf2 g2 Qee3 Bg3 Rb2 Bf2+ Kh2 g1N Ra2 Ne2 Rd2 Ng2 Rd1 Kb3 Rd2 Nc3 Rd1 Nb1 Rd2 Nd7 b8Q+ Kc3 Qb6 Rg8 Ng7 Bh4 e8B Nb8 Bh5 Be1 Nge8 g3+ Kg1 Nf4 B3g4 g2 Kh2 g1R Bf7 Ng2 Be6 Bg3+ Kh3 Bgd6 Rf4 Rd4 Kh2 Nh4 Bh5 R1g7 Qf3f2 Ng2 Bd1 Be5 Qff3 Rdd7 Ra2 Rd4 Ra7 Na3 Rd7 Nb1 Rd8 Bed6 Qfg1 Rd5 Qgf1 Ba3 Rd4 Bae7 Nd7 Bh4 Ndf6 Bg3+
b4R2/2Qn1Q1P/2q1bn1B/r2bq2r/2BQqb1K/2b4R/r3N2R/2B1NkB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 h4 Ke5 b4 Kd4 h5 f5 d3 a5 d6 c5 b6 g5 d7 g3+ Kg2 g4 h6 c4 b5 a4 b7 a3 e5 c3 b6 a2 e6 c2 e7 Bg7 e8Q Qf6 d8Q+ Nd7 b8B Qe5 b7 Ra5 Qf3 Nf6 Bd2 c1Q Rh3 Qc6 Kh1 g2+ Kh2 Rh7 Qg3 f3 Qe6 f2 Nc3 f4 Bc1 f3 Qf7 Bh8 Rb1 a1R Rb2 R1a2 Be2 Qee4 Qgc7 f1B Kg3 f2 Kh4 Qe5 Rd2 g3 Nf3+ Ke3 d4 g1Q d5 g2 d6 Qh1 Bc4 g1B Ne2 Bg2 Ne1+ Bf3 Qg7 f1B Qf7 Kf2 Ba7+ Rc5 b8R Bd5 Rc2 Bh2 Ra8 Bg7 Qh8 Bb7 Rf8 Ba8 Bb6 Bf4 Rb2 Nb8 d7 Qhe4 d8B Nbd7 Rd2 Be6 Rc2 Bg2 Be7 Ng4 Bg5 Kf1 Ba7 Rca5 Bg1 Qe3 Rb2 Bgd5 Rd2 Q5e4 Rc2 Bb2 Qd4 Bc3 Rd2 Ngf6 Rb2 Rg7 h7 Rg6 Bh6 Rg5 Rh2 Qe5 Rb3 Q3e4 Ra3 Bb4 Rg3 Bc3 Rgh3 Rh5+
1n1B1Nqn/b1b4P/B5b1/3bQQ1q/4r1BN/R2K4/B2brQN1/q1k2nR1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 h4 a5 c4 g5 c5 d5 b6 f5 b7 a4 b5 f3 b6 Kf4 h6 a3 c6 a2 h5 f2 h7 g4 h6 g3 e5 d3 c7 g2 e6 d4 e7 Ra4 e8B Ne7 Rh5 Ng6 Rh3 Be6 c8B Bd5 Qh5 Bb4+ Kd1+ d2 Bf7 Re8 Kc2 Re2 h8Q Qg8 Qf6 Nh8 Nf3 Ke3 h7 g1B Na3 f4 Nh4+ f3 Qhf5 Bc3 Rb1 a1B Rg3 Rb4 Bh3 f1Q Bg4 Bf2 Bb2 Qh1 Rbg1 Ra4 Rh3 Bg3 Bfe6 f2 Qf8 f1N Qf2+ Ke4 Nc4 Bc7 Ne3 Ba5 Neg2 d1B+ Kb1 d3 Bf6 d2 Bd8 Bae5 Ra3 Bd4 Q8f6 Be3 Q6f5+ Kd4 Bf7 Bc2+ Kb2 d1Q Bfe6 Na6 b8Q Bd2 b7 Rc4 Bf7 Bce4 Bfe6 Qa1+ Kb3 Kd3 Bf7 Bcb6 Qbe5 Bc7 b8N Ba7 Nd7 Nb8 Ba6 Qh3 Nf8 Qf3 Qc8 Bg6 Bfe6 Qf5 Bf7 Qh5 Qce6 Bf4 Q6f5+ Kd2 Be6 Kc1 Bf7 Rcc2+ Kb4 Rb2+ Kc3 Bd2+ Kd3 Rb4 Be6 Rbe4 Bf7 Bc6 Ba2 Bd5
2n2Bq1/3n2PQ/3R1NBr/r2rB1bb/NKR1r2Q/4qN2/kBr3q1/3Rn3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 b4 Kd6 e4 a5 d4 h5 Kd2 f5 Kc3 c5 b6 c4 b7 f3 g5 f4 g6 a4 b5 a3 g7 h3 b6 h2 Qb3 f2 Qb5 h4 Bg2 f1R Ne2 a2 Qe8 h3 Bb2 f3 Qf7 f2 Qh5 Nd7 Ng1 Be7 Qh7 Ra5 Nf3 Rc1+ Kb4 f1R Nc3 Bg5 Na4 Rc2 Rd1 a1N b8R c3 b7 Re1 e5+ Ke7 e6 Kd6 e7 Re4 Rhe1 h1R Re2 h2 Red2 Qe8 Bf1 Rg1 Bd3 h1Q Ra8 Qg2 Ra7 Re5 Bg6 Rge1 Ra8 R1e4 Ra6+ Kc7 b8B+ Kb7 d6 Red5 Ra7+ Kc6 Bc7 Qf7 e8N Ne7 Nf6 Qg8 Ra8 Ba6 Rc8 Be2 Bb8+ Kb7 Rc7+ Ka6 Rc4 Nc8 Rd3 Rd2 Bc7 c2 Bb8 c1Q Bc7 Ne5 d7 Rc2 d8B Nd7 Be7 Qf4 Be5 Qe3 Nh2 Bh5 Bf8 Nb3 Nf3 Nc1 R3d2 Nd3+ Ka3 Rd6 d5 Kb5 Kb3 Ne1+ Rd3 Rc6 d6 Rc5 Ka3 Ndb6 d7 Rd5 d8Q Nd7 Qe7 Qe6 Qg8 Rh6 Qh7 Qf7 Qe6 Qg8 Qh3 Qeg1 Qh4 Qb6 Rc6 Qe3 Rd6 Kc4 Rc1 Qa7 Rdd1 Qe3+ Bbc3 Rf2 Nd2+ Kd3 Bb2 Re2 Rc4 Rf2 Rd4+ Kc2+ Kb4 Re2 Nf3 Rd2 Bc1 Kb1 Rc4 Rc2 Bcb2+ Ka2
3r3b/K2NPQr1/r1NBQ1B1/1N1rrq1R/N4b1q/1bnk4/3B1Q2/n3qR2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kd6 d4 c5 b4 f5 g4 a5 g5 h5 b6 a4 b7 f3 Ke3 f2 g6 c4 g7 a3 b5 a2 b6 c3 Qg4 c2 Na3 f4+ Kd3 h3 Kc4 f3 Kb5 h4 Qg6+ Be6 Qg4 h2 Rb1 a1R Bg2 f1Q+ Ne2 f2 Bf3 h3 Qh5 Nc6 b8N Nge7 g8Q Ra6 b7 Bg7 Nd7 Nb4 Bd2 c1B Qhf7 Qe1 Bh5 f1Q Bg6 Qf5 Nc3 Nc2 Na4 Rb6+ Ka5 Rh5 b8N Ra2 Nc6 Bh8 Rf1 h1R Rb5 h2 e5+ Kc7 Qgf8 Na1 d6+ Kb7 d5 Rg1 Rc5 h1R Nb5 R1h4 Qh6 Rd4 Qe3 Rgg5 Qf2 Rh7 Qf8 Bg8 e6 Rg7 Qf7 Ra3 Nde5 Re4 d7 Rd3 d6 Nd5 e7 Nc3 Rd5 Red4 Rc5 Rd5 Qe6 Qdf8 d8B Q8f6 d7 Rh5 Bc7 Qh4 d8Q R3d4 Bg5 Bf4 Qf8 Rd8 Bd6 Rd5 Nd7 Re5 Qef6 Bb3 Qe6 Rd5 Kb4 Re5 Rd5 Ka6 Kc5 Bg3 Bd2 Bf4 Ncd4 Rb7 Kc6 Rb6+ Kc7 Rg5 Qff7 Ka5 Rc5 Kb4 Rd5+ Kc4 Nc6 Ra6 Rc5+ Kd3 Kb7 Rb6+ Ka7 Rd5 Qg1 Rg3 Qh2 Re3 Qf2 Ree5 Rc4 Bh2 Rg4 Bg3 Rg5 Bf4 Rh5 Ra6+
k3n1K1/2QPn1B1/1rq1r1R1/n5R1/2b1qB1R/1rQ2nN1/N3B2b/QR3n1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8R c2 d5 h3 d6 a3 g5 a2 g6 Qc7 d8Q Nf6 g7 Be6 g8R Bc4 d7 Ra6 Be2 Nc6 Re4 Ne8 Nc3 Ne7 Qe1 Rh6 Bb2 c1R Rg5 Re6 Rb1 a1N Na2 Qc6 Qc3 Nb3 Qc7+ Ka8 Q7e5 Na5 b7+ Ka7 b8B+ Ka8 Qh8 Rb6 Bd6 Rd1 Rg6 Rd5 Re5 Bg7 Ba1 Rd2+ Rd5 Rb2 Be5 Rb3 Bc7 Rb8 b6 Be5 b7+ Ka7 Kf2 f3 Ke3 f4+ Ke4 f2 Bd6 f1N Qg7 Nc8 Kf5 f3 Rb5 Bg3 Bf4 f2 Kg5 Qe4 Kh6 Ne7 Kh7 Nd2 Rg5 f1N Qge5 Nf3 Kh8 Rc8 Kh7 Rcc6 b8Q+ Ka6 Qc8+ Ka7 Qcc7+ Ka8 Bb2 Nc8 Kg8 Rcb6 Bbc1 Qc6 Qa1 Qe4 Qec3 Qc6 Be5 Bf4 Bg7 Ne7+ Kf7 Bd6 Bf4 Be5 Bd1 Bd6 Ne2 Qe4 Ng3 Be5 Rg1 h1Q Be2 h2 Rg4 Qg2 Rh4 h1Q Kf8 Nf5 Kg8 Qc6 Bd1 Qc2 Be2 Q2e4 Nh5 Bd6 R1g5 Be5 Ng3 Ne7+ Kf7 Bd4 Kf8 Bg1 Kf7 Bh2 Kf8 Nf5 Kg8 Ne7+
1KR1r1bN/rPqq1b2/7B/3Bq2k/1q1RN1n1/1QRn4/5b1B/1QQ1q1nQ w - - 0 1 illegal: No possible last move, all moves rejected
5qrR/1PB1Q1qK/1rNB1b2/nkn1r3/2b1Q1N1/2R1r1r1/2bqQ3/4RB1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 b6 a3 g6 c3 g7 a2 b5 h4 b7 c2 d6 h2 b6 Kc6 e6 h3 d7 Ra3+ Be3 c1Q e7 Nf6 e8R Qd2 g8R Ne4 Qe1 Be7 Ne2 Nc5 d5+ Kb5 d6 Bf6 Re5 Nc6 b8B Na5 b7 Rb3 Rg3 Rg8 Re8 Qe7 d8Q Rd3 Rhg1 h1R d7 h2 Bd6 Rd5 Rf8 Re5 Qe8 Qg7 Qf2 Qg5 d8Q+ Bd7 Qee7 Be6 Qh7 Bb3 Qde7 Bd1 Rh3 Bc2 Rgg3 Rg1 Na3+ Ka6 Rc8 h1R Re1 a1R Nc4 Rb1 Nd4 Rb6 Nc6 Kb5 Qe2 Rh2 Rh5 Rgg2 Bg1 Rh3 Bh2 Rg1 Kf2 f3 Ne3+ Nc4 Ng4 f4 Rg2 Rg3 Ra8 Re3 Qhe4 Rh1 Ra3 Rg1 Rd3 Na5 Rh8 Rh1 Bg1 Rh5 Rh2 Qh4 Rh1 Re5 Bh2 Qh6 Bg2 Qg5 Rc3+ Rd3 Kf1 f2 Bh3 Re3 Kg2 f3+ Kg3 f1Q Bc7 Qh4+ Kf4 f2 Bg2 Qh5 Bd6 Qg6 Bh3 Qg7 Bg2 Qg1 Bg3 f1B Bc7 Qf8 Bh3 Re6 Kf5 Qg2 Bgd6 Qg3 Qg7 Re5+ Kg6 Qh4 Bg2 Qg5+ Kh7 Rg3 Qf7 Re3 Qe7 Rg3 Qf2 Rde3 Qf3 Bfd3 Bf1 Bc4 Qe2 Qgg7+
5nr1/r3N1b1/1Q1qk1b1/1K3rQ1/B1rR2BB/Qn3PQn/1b2qNN1/2q1R3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 d4 c5 b4 a5 g4 e5 d6 h5 g5 c4 f3 a4 g6 c3 b6 a3 b7 h3 g7 h4 d5 a2 b5 c2 b6 e3 Kd3 h2 Kc4 e4 Nd2 h3 Ne2 Nc6 b8Q Nge7 g8B Na5+ Kb5 Ra7 b7 Ng6 Nf4 e2 Ng2 e3 Ne4 e1Q Qd3 e2 Bg5 c1Q Nf2 Bg7 Qa3 Nf8 Bh4 Nb3 Rg1 h1R Be6+ Ke8 Bg4 Kf7 d7 h2 d6 Rg8 Rb1 a1B Rb2 Qed1 Rd2 e1R Rd4 Bb2 Bd3 Qdc7 d8Q Bf5 d7 Re4 Bc2 Qd6 Re1 Ke6 Qg5 Qdd2 d8Q Qe2+ Nd3 Rg1 Qb6 h1N Q8c7 Nf2 b8N Nh3 Nc6 Rf4 Ne7 Rf1 Rd5 Rc4 Nf2 Rh1 Rd4 Na1 Bh5 Bg6 Ba4 Rg1 Ne3 Rg4 Ng2 Rf4 Bg4+ Rf5+ Qcc5 Nb3 Qf4 Kf7 Qg3 Rf4 Qg5 Rf6 Nf5 Ke6 Ne7+ Rf5+
1Rrr4/2Bb1rQB/nQrB3q/b4R2/1BNK1nPR/1b1n3N/k6N/3q3q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 a5 d4 h5 g4 f5 b6 c5 b7 f3 Ke3 c4 b5 c3 b6 f4+ Kd3 f2 Rh2 h3 Na3 c2 Qe2 h4 Ra2 a4 Nf3 Bd7 Qe3 Ne7 Bd2 Na6 b8R Ng6 b7 c1N+ Kc3 Qf6 Bd3 f1B Rh1 Qe6 Nh2 f3 Qg5 Nf4 Qg7 f2 e5+ Kc7 d6+ Kc6 d5+ Kc5 Rc2 Qh6 Bh7 Ncd3 Nc4 a3 e6 a2 e7 a1R e8Q Rc1 Qeg6 Be7 Q6f6 Bd8 Qe6 Kb5 Kd4 Ka4 Bb4 Kb3 Re2 Re8 Re5 Ba5 Rf5 Ka2 Qef6 Rc8 Qfg6 Ba4 d7 Bb3 d8B Be2 d6 f1R d7 Bf3 Nb2 Bc6 Bc7 Rc5 d8N Bd7 Nc4 Rc6 Ne6 Rd8 Nf3 h2 Neg5 h3 Qd6 Rf2 Qc5 Rf1 Qb6 Rf2 Rc1 h1Q Nh2 Qf3 Re1 Qd1 Re6 Qh5 Rh6 Qg6 Rh4 Qh6 Nf1 h2 Nh3 h1Q Nh2 Qc2 Rc8 Qe2 b8B Qed1 Bcd6 Rf3 Bbc7 Rf2 Rb8 Rf3 Rb7 Rac8 Rb8 Ng6 Rd5 Rf7 Rf5 Ngf4
3r3n/NBr1Bk2/q1R4b/2n1bNPN/B3R2Q/2Rb2q1/1q3nQ1/N3b1Kr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 c5 e4 f3 b6 h3 b7 a4 d6 c4 b5 h2 b6 a3 d5 c3 e5 c2 d7+ Kf7 e6+ Kf6 e7 h4 e8B f4 d6 a2 Na3 h3 Qd5 Nh6 Ba6 Bg7 Ne2 Ra7 Re1 h1N+ Kg1 Qc7 d8R Bf5 d7 Nf7 Nd4 Bh6 Rc8 Bd3 Re4 Nf2 d8Q+ Kg7 g5 Nd7 b8N Nc5 b7 Qb6 Bc6 Qb2 Nd7 Re8 b8N Rc7 Qc4 Nh8 Nf6 Kg6 Be3 c1B Ba4 Bd2 Bb7 Be1 Qdd5 Rd8 Rc1 a1B Nac2 Kg7 Nbc6 Kf8 Ne2 Kg7 Na7 h2+ Kf1 Kg6 Qc6 Kg7 Nh5+ Kf8 Qd4 Kf7 Bd2 Qb5 Qb4 Be5 Na1 Qb6 Qd4 Qb2 Bc3 Nh3 Bd2 f2 Bb4 h1R+ Kg2 Qd2 Rc3 Qb2 Kf3 f1Q+ Qf2 Kf8 Nd4 Qg1 Qh4 Kf7 Nf5 Nf2 Ba3 Bc2 Ke2 f3+ Ke3 Bd3 Qd5+ Ne6 Be7 Qg3 Qa2 Rcd7 R8c6 Rc7 Qb1 Nc5 Qc2 Nh3 Qg2 f2+ Qf3 Qh2 Qg2 f1Q Nfg3 Qf6 Nf5 Nf2 Kf3 Bc2 Ke3 Qg3+ Ke2 Rh2 Kf1 Bd3+ Kg1 Qe6 Rc1 Qc4 Rc2 Qa6 Rc3 Rh1+
3RR3/6Nb/k1Nrn1N1/1b2P3/3n1qnq/2b1B1r1/1qrnQ1B1/1QBRB2K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 h5 d4 a5 e4 f5 g4 c5 Kg2 Kc7 b6+ Kb7 d6 f3+ Kh2 a4 d7 h3 g5 h4 g6 f2 g7 c4 e5 a3 d5 c3 b5 a2 d6 f4 Qd4 f3 Ne2 c2 Nbc3 Qg5 d8B Nc6 d7 Nh6 g8R Nf7 Qb4 Nd4 Bg2 f1B Qc5 Ra3 Bb2 c1R Na4 Rh6 Qc2 Bb4 Rb1 a1Q Nf4 Nc6 Bf6 f2 d8B Bf5 Re8 Bh7 Qe4 Qg4 Bg5 Rc2 Bdf6 Bc4 Qe2 f1N+ Kg1 Nd8 Nc5+ Kb8 b7 Ka7 Be7 Rg3 b8N Ba5 Nce6 h2+ Kf2 h3 b6+ Kb7 Ng7 Ba6 Rg1 h1Q Bb4 h2 B4c3 Re6 Ng6 Qga4 Bcd2 Bc3 Bge3 Qe4 Ba3 Bd3 Rb4 Nd4 Nc6 Ka6 b7 Rd6 b8Q N8e6 Bac1 Qa3 Rb7 Bc4 Rd7 Qf4+ Bf3 Bd3 Qb1 Qb2 Rdd8 Bb5 Rg2 Qe4 Rg1 Qg4 Bd5 Qhe4 Rh1 Qh4 Rg1 Qef4+ Bf3 Rh3+ Kg2 h1N Bd5 Nf2 Be4 Nh2 Rd1 Nfg4 Be1 Nf1 Kg1 Rg3+ Bg2 Qhf6 Kh1 Nd2 Qf3 Q6g5 Qe2 Qh4+
R3BNbr/N7/1Qnq1bNq/q2PQ3/NnnbR2r/1RBk4/rBn5/7K w - - 0 1 illegal: No possible last move, all moves rejected
1q6/1NnNn1qk/R2rBrbB/1KPq4/r2N1Q2/bQN1R3/bB1R3n/b7 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kg7 Kc4 a5 f4 e5 g4 d5+ Kd3 h5 b4 h3 c4 h4 b6 a4 f6+ Kh7 b7 a3 b5 a2 b6 h2 f5 h3 f7 Ba3 f8B Be6 g5 Ra4 c5 Ne7 f6 Na6 b8Q Nc7 Bh6 Rf8 f7 Qd6 b7 e4+ Ke2 e3 Kd3 e2 Nc3 e1Q Bb2 Qee5 Nge2 Qg7 Qb3 Qde5 Rd1 a1B Rd2 Qf4 Rg1 h1B Rg3 h2 Bh3 Bg2 Re3 h1N Bg4 Ng3 Bh3 Nf1 g6+ Kh8 Bf5 Nh2 Bg4 Bf3 Bh3 Bh5 Bf5 Rd8 f8N Rd6 Nd7+ Bg8 Qf8 Rf6 b8N Qd6 Qf7 Qb6 Nc6 Qb8 Qe6 Bf7 Qe4 Be6 Nd8 Bf7 Be6 Kg8 Kc2 d3+ Kb1 d4 Ka2 Kh8 Qf4 Bg8 Nb7 Bf7 Qb4 Bg8 Kb3 Bf7 Rd1 d2 Kc4 d3 Nd4 Bg8 Rde1 d1R R1e2 d2 Rf2 Qf7 g7+ Kh7 Rg2 Qff8 Rge2 Bgf7 g8R Qg7 Rc8 Bhg6 Rd8 Qa7 Ra8 Qb8 Rg2 Rb1 Ra7 d1Q Rd2 Qf3 Ra6 Rd1 Rc2 Rd3 Rd2 Qh5 Ndb5 Rd6 Nd4 Ne8 Kb5 Bg8 Bf5 Ba2 Be6 Qd5 Qb3 Nc7+
8/2Nn3K/q3P2r/BB3QRr/bbQbq2N/3rkBn1/RRBr2nN/3q4 w - - 0 1 illegal: No possible last move, all moves rejected
1qN3q1/nrBn1B1n/R1P1r1qk/1NQ1R3/1Q2qrB1/1K4Q1/4b2N/4Q1bb w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kg7 g4 d5 c4 e5 Kc2 h5 b4 a5 f6+ Kh6 b6 e4 f5+ e3 f7 a4 c5 d3+ Kb2 d4 b7 h3 f6 d2 b5 e2 b6 e1R c6 a3+ Ka2 h2 Ba6 h4 Nf3 d3 Rf1 h1Q Nc3 h3 Kb3 h2 Nb5 Re6 Re1 a2 Re5 Rh7 Qe1 Nd7 b8Q Bc5 f8N Bg1 f7 Ngf6 Ng6 Qg8 f8Q+ Rg7 b7 Nh7 Ba3 d1N Bd6 d2 Bc7 Nc3 Qc5 Ra7 Ne7 d1Q+ Kb2 Qd6 Kb3 Rf7 g5+ Kh5 g6+ Kh6 g7 Rf4 Qc1 Qg2 Qe1 h1B Nh2 Qd3 Rg5 Qg6 Re5 Q8e8 g8B Q2e4 Bf7 Qeg8 Rc1 a1Q Rc2 Qa5 Ra2 Qb6 Ra3 Ndf6 Ra2 Bd7 Nc8 Be8 Qa8 Bd7 b8Q Rb7 Qaa7 Be8 Qb4 Nd7 Ra1 Qc5 Ra3 Qd6 Qae3 Qdf8 Qba7 Qd6 Q3g3 Qdf8 Qac5 Qd6 Nd4 Nb5 Ra4 Na7 Be2 Qdf8 Nb5 Qd6 Bb6 Qc7 Ra6 Qb8 Bc7 Qgf5 Bfh5 Bf7 Bhg4 Bh5 Bc4 Qfg6 Bd5 Re7 Bf7 Re6 Bf5 B5f3 Bg4 Be2
8/1rrPbnr1/1bqQR1Bq/1n1R1bk1/NqBB1n1N/RR5r/1N5K/1Q6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 b4 Kf6 e4 h5 d4 a5 g4 c5 Kg2 f3+ Kh2 a4 b6 c4 d6 c3 d5 h3 b7 c2 b5 h4 b6 a3 d7 a2 d6 f2 Qd5 Nc6 b8N Nh6 b7 Qb6 d8R Be7 Bd2 c1R Qb3 Na7 Bd3 f1R Nc3 Bf5 Qb1 Qb4 Nf3 Nb5 Na4 Rc7 Nc6 Ra7 b8Q Rg1 Nce5 Rab7 Nc4 Kg6 d7 f6 g5 Nf7 e5 Rg3 e6 Rh7 Qc1 Rg7 Rb1 a1B Be3 Bd4 Rb3 Bb6 Bd4 Kh5 g6 Kg4 Nfd2 Kg5 Ncb2 Re3 Qb1 Rf3 Kg1 h2+ Kg2 Rh3 Rd1 h1N Bc2 Nf2 Nf3+ Kh5 Ra3 Nd3 Kg1 Nf4 Rh8+ Rh7 g7 Kg6 g8B Rg7 Ne1 Kg5 Ng2 Re3 Kh2 h3 Nh4 Rg3 Kh1 h2 Rdd3 Rh3 Rdb3 Bg4 Bg6 f5 Qe1 Nd3 Kg2 f4 Qb1 f3+ Kh1 f2 Rh5+ Kf4 Rc5 Bf5 Rd5 Kg5 Kg2 Nf4+ Kh1 Bec5 e7 Bd6 e8R f1Q+ Bg1 Qf2 Re6 Qfc5 Bd4 Qc6 Qf8 Ne2 Kg2 Bdc5 Qd6 h1Q+ Kf2 Qc1 Kg2 Qcd2 Qh2 Be7 Qd6 Rc3 Kh2 Nf4+ Re2 Qe3 Re1 Qe6 Re3 Qf6 Re6 Rh3+ Kg1 Nh6 Rc5 Qf8 Re4 Rh7 Bc4 Qg7 Rd5 Nf7 Re1 Qh6 Re6 Rd3 Kh1 Rg7 Kh2 Rh3+
r1r1Q1bB/1R3n1K/r1nnQR2/Rr4rk/1b1P3b/1qr4B/3NR1B1/1N4N1 w - - 0 1 illegal: No possible last move
b3Q3/2q1PqqK/3qq1n1/1NB4R/1qN3B1/B2QrqN1/1R5R/N1knr1b1 w - - 0 1 illegal: No possible last move, all moves rejected
6qk/br5N/3rBr1b/3r4/N1rN1Q1B/1RB3n1/4b1QP/qBnRr1KQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 g5 e4 f5 d4 Kf7 b4 Kg7 b6 a5 d6 c5 d7 a4 b7 g3+ Kg2 a3 b5 c4 e5 a2 b6 c3 d5 c2 e6 g4 d6 Na6 b8B Nb4 e7 Rh6 e8B Kh8 b7 Nf6 Ba6 f3+ Kf1 f4 Qd3 f2 Qe2 Ra7 Bb2 Nd3 Bc3 Nc1 Nf3 Bg7 Qe4 Nh5 Bg6 Qg8 d8N Bd7 Nd4 Bb5+ Kg2 f1R d7 Be2 N8e6 Rd1 d8Q Re1 Rf1 f3+ Kg1 g2 Bc4 Ng3 Nf8 Rh5 Qd6 Bh6 Be6 Rd5 Qdf4 Ra6 Nh7 Rad6 Kf2 g1R Ba7 Qc8 b8Q Qg8 Qb2 Rh1 Bb6 Rg1 Bd8 Rg2+ Ke3 f2 Bh4 Rg1 Qb7 Rh1 Rg1 f1R Qg2 Rf2 Qg5 Rff5 Qf4 Rf6 Rf1 Rg1 Rf3 Rh1 Kf2 Rhg1 Na3 Rh1 Rb1 a1Q Nc4 Rhg1 Qh1 Rgf1+ Kg2 Rf7 Qc6 Rb7 Rd3 Rf3 Rb3 Rff1 Nb2 Rf3 Qe4 Rf6 Bgf5 Na2 Rd1 c1R Qf4 Rc2 Ba5 Rc4 Bc3 Nc1 Kf2 Nh5 Bb1 g3+ Ke3 g2 Kf2 Ng3 Na4 g1B+ Kg2 Rdc5 Qcf3 Be3 Qf2 Bf1+ Kg1 Rcd5 Nf3 Bb6 Nd4 Ba7 Qfg2 Be2+
2q1kB2/RB5B/r4Q2/N1nbKrnn/5n2/2r1QR1N/br1Rn1Pb/2RQ4 w - - 0 1 illegal: No possible last move
2N3bk/N4nb1/QQB3q1/n1QB2B1/nb3R2/1RB1b1b1/KR2Pnr1/4rr2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 g5 c4 d5 Kc2 a5 Kb3 f5 h4 Kf7 c5 Kg7 h5 f4 b6 f3 c6 f2 e6 d3 b7 g3 e7 d2 e8B a4+ Ka2 d4 b4 a3 b5 g2 c7 g4 b6 d3 Ba4 g3 Nf3 g1B Qe1 d1N Nh4 d2 Bc6 g2 Nc3 Qg5 Rb1 Nh6 Nb5 Nb2 Ng6 d1N Ne7 Bh2 Qa5 g1B Qa6 Qg6 Bfg2 f1R Na7 Bg3 Bgd5 Nf2 Bg5 Rg8 Rh4 Nf7 h6+ Kh8 h7 Be6 c8Q Na4 Rb2 Bg7 Rf4 Bc3 Qc7 Bb4 Nec8 Rg7 Be8 Nc6 b8Q Na5 b7 Rg8 Qc1 Re1 Bc6 Rf8 Ka1 a2 Qc7 Rg8 b8R Rg7 Rb5 Rb8 Qcb6 Rb7 Rb3 Rd7 Bf3 Rdd1 Bfd5 Rf1 Rb2 Rde1 Rb3 Nc5 Kb2 a1B+ Ka2 Na4 Qce3 Rg8 Qec5 Bg7 Rb2 Ng4 Rb3 Be3 Rb2 Nf2 Rb3 Bbd2 Rb2 Bdc3 R5b3 Bb4 Be4 Qh6 Qe5 Nd8 Qbb7 Bh4 Qbb6 Bf6 Qec5 Bfd4 Be7 Rg2 Bf3 Qg6 Bfd5 Bg3 Bh4 Bg8 Bg5 Kg7 h8B+ Kh7 Be5 Nf7 Bb8 Bf6 Be5 Bg7 Bc3 Kh8
Q1N2bRK/1nBq4/6q1/1Q1N1b2/n1R2n2/RB3r2/nnBBP1kb/2r1n2N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 g4 h5 b4 f5+ Kd4 c5+ Kd3 Ke5 d6 f3 d7 Kf4 g5 Kg3 b6 c4+ Kd4 f4 Ke5 f2 d4 c3 b5 f3 b7 a4 d5 a3 g6 a2 g7 c2 b6 h3 d6 h2 Bh6 c1N Kf5 h4 Kg6 h3 Bg2 f1N Be3 f2 Bf3 Ne7+ Kf7 Na6 b8Q Nc5 g8B Na4 b7 Nc6 Bh7 Na5 Qd4 Nd2 Qda7 f1Q Bc2 Ndc4 Nc3 Ncb2 Bd2 Qg2 Bd5 Rh6 Kg8 Rf6 Kh8 Rf3 Qb6 Ra6 Qb3 Rc6 Qa8 Rc4 b8B Nb7 Bc7 Rc6 Rb1 a1B Qb5 Na2 Rc1 Kf2 Bg8 Qg6 Bgb3 Kg2 Nd5 Qe7 d8N Bf5 Nf7 Qd7 Bd1 Rc5 Rc4 Rc6 Re4 Rc2 Rc4 Rc1 Bdc2 Rd3 Nf3 Rc3 N3e5 Rf3 Rd1 h1N Nd3 h2 Nf2 Ng3 Nh1 Nh5 Re1 Nf4 Rd1 Qde6 d7 Qe7 d8R Qd7 Nf2 h1N Nd6 Rd3 Nc8 Rf3 Ne4 Nf2 Ng3 Nf2d3 Nh1 Ne1 Re8 Ba3 Rg8 Bd6 Bc3 Be7 Rd3 Bf8 Bd2 Nh3 Rcd4 Nd1 Bc4 Bc3 Re3 Ndb2 Rd3 Bcb4 Ra3 Bbd6 B4b3 Bh2 Rc4 Nf4
k3rqb1/bR1Rrbn1/1BnQb1n1/1n6/2B2BQ1/R2B4/rKP5/3NNb1Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 f4 a5 b4 e5 g4 d5 f6 Kd7 g5 Kc7 f5 Kb7 b6 h3 g6 h2 b5 d3 Kc3 d2 f7 e4 g7 h4 f6 d4+ Kb3 e3 Bd3 h3 Nf3 a4+ Kb2 a3+ Ka2 e2 Rg1 h1N Bg6 e1N Bb2 d3 Kb3 h2 Ka2 Nc6 Nh4 Rh7 Qc1 d1B Bd4 d2 Nc3 Be2 Nf3 d1B Bd3 Nge7 g8B Bf1 Rg7 Ng6 Bf2 Kb8 b7 Ng3 Bb6 Bc5 f8Q h1B Bgc4 Nh5 f7 Be6 Qg8 Qf8 Qb1 Bde2 Nd1 Bhg2 Kb3 a2 Kc3 Bgh3 Kb2 Bd5 Qc1 Bhe6 Qb1 Ra7 Qc1 Rh8 Rh7 Ng7 Qh6 Ng2 Ne1 N2f4 Qh4 Bh5 Qh1 Nf5 Qg7 Ne2 Qd4 Ng7 Qg4 Qe8 f8Q Nc3 Qe7 Qf8 Qd7 Bg8 Qe7 Bde6 Qf6 Ne8 Rd7 Ng7 Qe7 Nd5 Qd6+ Nc7 Rc1 a1R Rb1 Ra8 Rc1 R1a7 Ra1 Rh7 Ra3 Ra6 Rb3 Ra1 Ra3 Bf2 Ba5 Ka7 b8R Be3 Rb6 Re8 Rb7+ Ka8 b6 Nb5 Rbc7 Kb8 b7 Ka7 b8B+ Ka8 Rb7 Ba7 Bc3 Nf4 Bd4 Bhf7 Be3 Ng6 Bb6 Rh2 Nf2 Bf5 Nd1 Rhe2 Qc5 R2e7 Bf4 B5e6 Qd6 Ra2+
B3QNb1/2Q4K/rB4Q1/n1Bnb2N/b3Bn1q/qr5P/k4bbb/1N3R1R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 c5 e4 f5 b6 a5 b5 g5 b7 a4 b6 c4 h3 a3 Rh2 c3 Qe1 g3+ Kf3 g2 Nd2 a2 Qe3 c2 Qc3 Be6 Qd3 Nc6 b8N Bg7 b7 Nf6 Nd7 Na5 Rh1 Bg8 Nf8 Ra6 Ne2 g1B Ng3 Bh2 Bg2 Rh4 Bb2 c1N Nh5 Ne2 Raf1 a1Q Nb1 Qa3 Bc1 Rg4 Be3 Rh4 Ng3 Rh7 Nh5 Bh8 b8Q+ Rc7 Qa7 Rb7 Qc2 Rb3 Qg7 Qe7 Qg6 Qh7 Qc8 Qe7 Qce8 g4+ Kf2 g3+ Kf3 Kc7 e5 Kb6 d6 Nd5 e6 Qh4 d7 Kb5 d8Q+ Kb4 e7 Be5 Nd2 Kc3 Qc7+ Kb2 Nb1 Ka2 Qed8 Nc1 e8B Nd3 Bc6 Bh8 Ba8 Be5 Ke2 f3+ Kd2 f4 Qde8 f2 Be4 f3 Kc2 Nc3 d5 g2 d6 g1B d7 Nd5 d8B N3f4 Be7 Rb8 B7c5 Rb3 Rc1 f1B Bed4 Be2 Rf1 f2 Bb6 Nc3 Bdc5 Bb5 Kd2 Ba4 Ke3 Qe7 Kf3 Ncd5+ Kg4 Qd8 Kf5 Qh4 Rd1 f1B Re1 Bg2 Rf1 Qf2 Kg5 Qh4+ Kh6 Bf7 Kh7 Bf2 Qg8 Be6 Qgg6 Bg8+
2n4K/qR1qrrr1/1n1N1NB1/1Q3N2/1B1Q2rb/2r1N2P/3RB1r1/k1q2Q1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 c5 b4 g5 b6 a5 b5 f5 h3 a4 b7 g3+ Kf3 a3 b6 g4+ Kg2 c4 Bd2 c3 Nf3 a2 Rh2 c2 Na3 c1Q Be2 Rh7 Nh4 Ne7 Nc2 Ra7 Ne3 Qd7 Rb1 a1Q Qf1 Rg7 Rb3 Qa5 Bb4+ Qac5 Rb1 Ra3 Rb2 Rc3 Rb1 Qc6 Rb3 Nd7 b8N Bb7 Rb1 Ba8 b7 Nb6 Nd7 Nec8 Nf6 Be7 b8Q+ Qc7 Qb7 Qd7 Qa6 Bd8 Qb5 Re7 Ra1 Bb7 Ra7 Bc6 Rb7 f3+ Kg1 g2 Kf2 Rg7 Kg3 g1R+ Kf4 g3 Rf2 Re7 Kg5 f4 Kh6 Rg7 Rh2 f2 Rg2 f3 e5+ Ke7 e6 Kd6 Rh2 g2 e7 Rg4 e8B Be7 Qd1 f1R Kh7 f2 Bg6 Re1 Kh8 f1R Qdd3 Rh1 Qf5 g1R Qf2 R1g3 Qg2 Rf5 Qf1 Rhg1 Rg2 Bd8 Rf2 Re5 Rh2 Re7 Rf2 Rf7 Rh2 Ke7 d6+ Ke6 Nhf5 Bh1 d5+ Ke5 Rf2 Qcc7 Rg2 Qb8 Rh2 Qa7 Rf2 Qc6 d7 R3g2 d6+ Qd5 Ne8 Bg5 d8Q Bh4 d7 Ke4 Qf6 Qe6 d8N Qd7 Bh7 Rgg7 Bg6 Rg4 Nc6 R1g2 Ne5 Rc2 N5c4 Rc3 Bd1 Re2 Qd8 Kd3 Nf6 R2g3 Rh2 Rg2 Ncd6+ Kd2 Nc2 Ree7 Be2 Qd1 Nce3 Kc1 Qc5 Kb1 Qb5 Nd5 Qdb6 Qc1 Qd4 Ka1 Bf3 R2g3 Rd2 Ndb6 Be2 Rg2
nr1QR1q1/3R4/Q1rNR2r/Rb3QNb/3n3B/1b1BKP2/3b1rbn/6kN w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 Kf6 g4 Kg5 c4 Kf4 g5 a5 c5 e5 f6 h5 c6 d5 c7 e4 b6 d3 b7 d4 b5 e3+ Ke1 d2+ Ke2 a4 g6 h3 f7 h2 g7 h4 b6 h3 Na3 Nf6 g8R Rh6 Nc2 a3 Qe1 d1B+ Kd3 a2 Rg6 Na6 b8R Bb4 f8Q Bd7 c8Q Nc7 b7 Bd2 Bb2 e2 Qh8 Qg8 Ne3 Ng4 Nc4 Bb3 Qb1 e1R Nd6 Rc1 Ne2+ Kf3 Ng3 Rc6 Re6 Be8 Be2+ Kg2 Rd1 h1R f3 h2 Bc1 Rf1 Nh1 Kg1 Ke4 Ba4 Bd3 Bb5 Qf6 Bf7 Qcd8 Bh5 Rc8 Rb8 Qc2 Bb4 Bg5 Na8 Bh4 Bd2 Qc5 Bg6+ Qcf5 Bh5 Rac1 a1N Rc5 Nc2 Q6g6 Ba4 Ra5 Bb5 Qe7 Be1 Re8 Bb4 Qd8 Bd2 Ng3 h1B Qgf6 Bg2 Nh1 Rbc8 b8N Nh2 Nd7 Rb8 Ne5 Nc7 Be1 Na8 Nef7 Rf2 Q6g6 Ng4 Ng5 Nh2 Be2 d3 Qgf6 Rf1 Bh4 Nd4 Q6g6 Bb4 Qgf6 d2 Bd3 Bc3 Ke3 Bb4 Rda1 d1B Ra7 Bc3 R1a5 Rf2 Rd7 Bda4 Qb6 Bd1 Qa6 Bb3 Qd8 Bd2+
k2qNnbR/6rQ/2n3r1/r5B1/Q4Krr/2QPn1R1/1nbR1bBN/3B2R1 w - - 0 1 illegal: No possible last move
Rq6/r4rN1/2Bb1NN1/B4n2/1Q2nq1P/nR1bQQnk/n4B1N/5Knq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 h4 a5 e4 g5 d4 c5 b6 f5 e5 c4 b7 g3 b5 f3 d6 Ke6 d7 c3 b6 f2+ Ke2 g2 Nd2 a4 Nc4 a3 Be3 f4 d5+ Kf5 d6 Kg4 e6 f3+ Kd3 a2 e7 c2 e8N c1N+ Kd2 Nc6 b8B Rh7 b7 Ra7 Rh3 Nce7 Bb6 Nf6 Ba5 Nf5 Qb3 Qb6 d8N Rf7 d7 Bd6 Qe3 Ne4+ Kd1 Qb4 Ne6 Qb5 Be2 f1N Ke1 N1g3 Bd1 Nge2 d8Q Bd7 Ba4 f2+ Kd1 Bc6 Nf3 g1N N6g7 Qb4 Qc8 Bb5 Qc6 Ba6 Bbc7 Qb6 b8Q f1Q+ Ne1 Qb1 Qb4 Qf4 Nf3 Bb5 Ke1 Qb2 Rb1 a1N Kf1 Nc2 Ra1 Na3 Qd5 Ba6 Bc6 Qbe5 Qdd3 Qb5 Qdc3 Qb8 Qf6 Nc2 Ra3 Na2 Rb3 Na3 Rh1 Qg3 Nh2+ Kh3 Ne5 g4 Ng6 Bc4 Qfc3 Bd3 Nf6 Qf3+ Qf2 Qf4 Qf3+ g3 Qd2 Nf2 Qde3 Ne4 Bcb6 Rae7 Qef2 Nac1 Ke1 Nb5 Qh5 g2 Ba7 Rd7 Bd8 Rb7 Qf1 Rbc7 Bf2 Rce7 Bg3 Nf3+ Kd1 Rb7 Qfe1 Ned4 Qe3 Nde2 Re1 g1Q Rf1 Nfd2 Ke1 Qh1 Bb6 Nc5 Bc7 Nf3+ Kf2 Nfg1+ Qhf3 Ne4+ Ke1 Ra7 Bb6 Rae7 Rf2 N2c3 Ra2 N3e2 Ra8 Na2 Ba5 Na3 Kf1 Ra7 Bf2+ N2g3+
1nN1nq2/2R1NB2/Q1n4R/r4B2/n3bBPn/q1B5/qQKN3b/r3Rn1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 g4 a5 e4 f5 b4 c5 b6 h5 b7 h3 b5 h4 b6 h2 Nf3 h3 Ng5 f3 Ba3 f4 Ne6 f2 Qb3 a4 Qc3 f3 Qb2 Ra5 Bb5 f1N+ Kd1 f2 Nd2 Ng3 Ng7 f1N Nb1 Nf6 Nh5 Nf5 Kc2 Nh4 Ng3 Bf5 Bb4 a3 Bc3 c4 Nd2 a2 Bd7 Ne8 Re1 a1Q Qa2 Bh7 Bf5 Qc8 Qb2 Qa3 Qb5 Bh6 Qa6 Bf4 e5+ Ke7 e6 Kf6 d6 Kg5 Rg1 h1Q d5 h2 d7 Qg2 d8R h1N d6 Nf2 d7 Ne4 e7 Nc5 Rh1 Na4 Rh3 Bd6 Ne4+ Kf4 Rh1 Be5 Nd6 Kg3 Rh2 Qcc5 Rc8 Kf2 d8B Kg1 Rc7 Bf4 Rh3 Bh2 Nc8 Qcf2 Rd1 Kh1 Re1 Nf3 Rh6 Nh4 Rd7 Qd5 Bc7 Qf7 Bg3 Qf8 Rc7 Qe2 Bf4 Qe6 Bb2 c3 Ba1 Qea2+ Bb2 Ng7 e8B Bg6 Bf7 Ne8 Kd3 c2+ Bc3 Nd7 b8Q c1N+ Ke4 Rh7 b7 Nb3 Kd3 Nd4 Re2 Qa1 Re1 Nc6 Kc2 Rg7 Qba8 Bh7 b8N Rg6 Q6b7 Q1a2+ Qb2 Rd6 Qa6 Rd4 Nf3 Rd1 Nd2 Ra1 Re7 Na7 Nc6 Nb8 Re1 Bg6 N6e7 Nac6 Bb3 Bf7 Bc4 Bd5 Bb3 Bf3 Bf7 Be4+
n2BR3/1bQNq3/1K3BbQ/2N2r2/R2P1rBR/1b1n2N1/q1b5/qk1bbN2 w - - 0 1 illegal: No possible last move
1r3K1Q/2k1bQn1/r1bRqQN1/3b1B2/2PR1N1n/nnB2n2/2B1q3/1B4nN w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 Kd7 Kg4 f5+ Kh5 a5 b4 a4 g4 f3 c4 d3 e4 a3 g6 d4 g7 a2 g5 d2 b6 f4 b5 f2 g6 f3 e5 d3 b7 Qe7 b6 Nf6+ Kh6 Na6 b8Q Nb4 b7 Nh5 Qa7 Nc2 b8Q+ Bb7 Qb6 Na3 Nh3 Bc6 Nf4 Qe6 Bh3 f1N Nc3 f2 Ne4 Ra6 Bb2 Nfg3 Qf1 d1N Bc3 d2 Bf5 Ne3 Rh4 Ng2 Rd1 Be7 g8B Ne2 Ng3 a1N Nh1 Ng1 Qa8 Bf6 g7 Nb3 Bf7 Rc8 g8N Bd8+ B7g6 Ng7 Ne7 Rb8 Qd4+ Kc7 Bb1 Qg8 Bgf5 Qe6+ Neg6 Bd5 Rg4 Nh4 Qaa7+ Rb7 Qh3 f1N Qf2 Nh2 Qff3 Qf6 e6 Qe5 e7 Qe6 Qff1 N2f3 e8B Bc6 Qd4 Rb8 Qf6 Bd5 Ba4 Bc6 Re1 d1Q Qf2 Qc2 Rd1 Qce2 Rd6 Nh2 Kg5 h5 Kh6 N2f3 Qff1 Ng2 Kh7 h4 Qh2 h3 Kh8 Na1 Bac2 Nb3 Kh7 Ngh4 Kh8 Q6e3 Kg8 Qe6+ Kf8 Bd5 Nh5 Bc6 Rgd4 Bd5 Qhe5 h2 Nhf4 Bc6 Ng3 h1B Qf2 Bg2 Nh1 Nh2 Qf1 Bge4 Qf3 Bed5 Qh5 N2f3 Qh8 Qc8 Qe8 Qce6 Qef7+ Be7+
r4b1Q/1q1bRQB1/5NN1/1QbRnbP1/8/q2QNb1B/k1Kq2n1/b2r2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 d4 Kd6 Kd2 a5 g4 c5 e4 h5 b6 f5 g5 c4 b5 a4 b7 h3 b6 a3 Rh2 h4 Nf3 c3+ Kd3 c2 Be2 a2 Ne1 f3 Bf1 f4 Bb2 c1B Nc2 f2 Nc3 f3 Ne3 Ne7 Kc2 Nbc6 b8N Bd7 b7 Ne5 Nc6 N7g6 Qd3 Nf4 Ne7 Ng2 Ng6 Qe7 Rh1 h2 Rg1 h1Q Rb1 Bd2 Re1 a1B Qb5 h3 b8R h2 Rd8 Nf4 Bh3 f1Q Re2 f2 Re1 Ng4 Re2 Ng2 e5+ Kc7 e6 Kd6 Re1 Ne5 Re2 Qe1 Ne4+ Kc7 Bc3 f1B Nf6 Qa3 e7 Kd6 e8Q Rh5 Bb2 Bb4 Qf7 Bc5 Qd3 Kc7 d6+ Kb6 d5 Ka5 Bd4 Bf5 d7 Ka4 d6 Qa5 Re1 Be2 Bc3 Bf3 Bd4 Q3b4 Bc3 Ka3 Re2 Rh4 Ree1 Re4 Qb5 Rd4+ Kc1 Nc4 Nfg4 Nb2 Nd5 B3e4 Qe6 Nc4 Qf7 Be6 Re3 Bc2 Re5 Nf4 Nge3 Be4 Re8 B4f5 Re7 Rd3 Kc2 Ka2 d8Q Qa7 d7 Qaa3 Qda5 Qe4 d8Q h1B Qdd7 Bf3 Bb2 Qe1 Qc3 Ng2 Qd4 Rd1+ Qd3 Bh6 Qc8 Bd7 Qh8 Bf8 Bd4 B5g4 Rf5 Qea5 Bg7 Qe1 Nc7 Qb7 Rd5 Bgf5 Ne8 Ne5 Nf6 Qd2#
Kr5n/n1N1QQ2/Bb2rn2/Pn3k1q/1RR5/5Br1/3NRr2/1bRQBbn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 b5 g4 h5 a4 h3 d4 h2 d6 h4 Kd5 h3 g5 e4 g6 c4 a5 b3 g7 b2 f6 b4 f5 e3 f7 b3 f6 e2 Kc5 Ke6 d5+ Kf5 Nc3 e1R Rb1 Nc6 Nge2 Na7 Ne4 c3 Nf4 c2 Bd3 Rh7 Be3 c1N Bd2 Ne7 g8B Ba6 d7 Ne2 d6 Qe8 Kb6 Ng1 d8Q Ng6 d7 Nh8 Kc7 Bc5 f8R Qh5 f7 Be3 Rc1 b1B Nd5 b2 Rc4 Bd4 Re8 Bb6+ Kd6 Rf1 Qe7 Rf2 d8R Rb8 Be1 Rg7 Nc7 Rg3 Be2 Rb7 Bf3 Bb5 Rb4 Bf1 Rc4 Ne2 Rg1 h1R Rb8 Rhh2 Rh1 Ng1 Nd2 Rhg2 Kd7 h2 Kd8 Rg6 f8Q+ Rf6 Bgd5 Rg3 Qfg7 Rfg6 Be2 Re6 Bdf3 Bd3 Kd7 b1N Kd8 Nc3 Kd7 Ne4 Qgf7+ Nf6+ Kd8 Nc6+ Kc8 Bc2 Rh4 Bb1 Ba6 Na7+ Kd8 Ne2 Rc4 Nd4 Rg1 Nac6+ Kc8 h1N Qef8 Nb5 Re7 Rd6 Re2 Re6 Qd6 Rh3 Qde7 Ng3 Re3 Ne2 Rh1 Ng1 Re2 Ra7 Rb7 Rg3 Rb8 Ra8 Kb7 Nca7 Rc1 Re5 Rh4 Re3 Rb4 Re6 Rg8 Rd8 Rgg4 Rdd6 Ka8 Rd7 Nd5 Rc7 Rgc4 Rb7 Nc7 Rb8+
2NN1BK1/3B1q1B/R1Q1nbPb/3bk3/6QQ/3qr1nn/r1b3Bb/Nb4R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 b4 Ke6 g4 d5 c4 h5 f4 a5 f5+ Ke5 f6 h4 c5 a4 b6 a3 c6 e6 b5 h3 b7 e3+ Kd3 e2 c7 e1B f7 h2 g6 a2 b6 Bf2 g7 Ne7 g8B Nbc6 b8N Bh6 f8Q Nf5 b7 Ng3 Nh3 Bg1 g5 Rh7 g6 Re7 Qa4 Qe8 Ba3 Nd8 Ng5 Qf7 Qfe8 Ra7 Kc2 d3+ Kb3 d4 Kc4 d2 Bh7 d1N Qec6 d3 Ne4 d2 Bg2 Nf2 Nd6 d1B Nd2 Bc2 Nb3 Nh3 Bc5 Bd7 Nc8 Re8 Bf8 Ra8 Rd1 a1B Rd6 Ra7 Qb4 Ra2 Qba4 Bad4 Na1 Bb1 Qd1 Bb2 Qg4 Re7 Qb6 Ba4 Qc6 Bac2 Qh4 Bc5 Rg1 h1B Qg4 Bce3 Qh4 Bef4 Kc5 Kf5 Kc4 e5+ Re6 e4 Kd5 Qf6 Rd6 e3 Re6 e2 Rd6 Re4 Re6 Bfc1 Kd6 Qc3 Ke7 Bcf4 Ke8 Be5 Rd6 Ne6 Kf7 e1Q Kg8 Qe2 Qb6 Qc5 Nc6 Qd3 b8Q Ne2 Bf1 Qce3 Nd8 Bh2 Qc5+ Bbe5 Ra6 Qf2 Qbb4 Re3 Qc6 Bd5 Bg2 Ng3 Qba4 Bh8 Qag4+ Ke5 Na7 Qe1 c8B Qf2 Bd7 Qf6 Nc8 Qe7 Qgc4 Bf6 Qcg4 Qf7+
4bbB1/NN2q2N/1b2P3/4Qr1n/1R3BN1/2Q1B1qR/knR1r1b1/qb1bK3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kd6 g4 h5 d4 c5 b6 f5 b5 a5 g5 a4 g6 c4 b7 c3 g7 f3 b6 f4 Na3 h3 Rb1 h2 Qc2 f2+ Kd1 f3 Be3 h4 Qb2 c2+ Kd2 c1B+ Kd1 h3 Qc3 Na6 b8R Nb4 b7 Nf6 g8N Ra5 Ne2 Bf5 Rb2 Nh5 Qc2 Qe7 Ng3 Nd3 Qc3 Bh7 Bg2 f1B Rc2 Nb2+ Ke1 Be2 Nf6 Bd1 Nf1 Bg6 Nh7 Be8 Bf2 Rg8 Ne3 Rg7 Bf1 Rg2 Ng4 Be3 Bc4 Rc5 Bg1 Rf2 e5+ Kd7 d6 Kc6 e6 Rf5 d5+ Kc5 Nb5 a3 d7 a2 d8Q a1Q d6 Qa3 Qe5+ Kb4 d7 Bb6 Bd3 Kb3 Qdc7 Ka2 d8N Qad6 Qec3 Qg3 Na7 Re2+ Kf1 Rg2 Be3 f2 Rg1 h1B Q7e5 Rh2 Be4 Bhf3 Rh1 Rg2 Bd3 h2 Be4 Rf7 Bg6 Rf5 Bf7 Be4 Bg8 Bd3+ Re2 Bb1 Rc2 Qh3 Rc8 Qg3 b8B Qc5 Nb7 Qe7 Rg1 h1Q Rc4 Rh2 Rb4 Bf3 Rd2 Bc2 Qh8 Bfe4 Ke2 Bca4 Rg2 Qa1 Bbf4 Bb1 Qhe5 Bac2 Rd1 f1B+ Kd2 Bca4 Re2 Bh3 Rh1 Rf2 Ke1 Bg2 Rh3 Bd1 Rc2 Re2#
2rR1Q2/3NRn2/2nP1B2/1NQ3n1/2R1n1kb/Q1rb1b2/2R3qb/1K1B1bBr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc2 f5 g4 c5 e4 a5 b4 c4 d6 Ke6 g5 f3 d7 c3 e5 h3 b6 h2 b7 f2 g6 a4 b5 h4 g7 a3 b6 h3 Ne2 f4 d5+ Kf5 e6 f3 d6 a2 e7 Nc6 b8B Kg4 e8R Nh6 g8Q+ Qg5 d8R Ba6 b7 Be7 Qgd5 Nf7 Ba7 Rc8 b8Q Qg8 Qe5 Bh4 Bb2 Bd3+ Kc1 c2 Nd2 Qg5 Nc3 Rh6 Be2 f1N Bc5 Ng3 Re7 Ne4 Bg1 Qg7 Qc5 Neg5 Rb1 a1B Nb5 Rh7 Bf6 Be5 Qe1 Bf4 Kb2 c1R Ne4 Rc3 Qc1 Qg6 Bd1 Rh5 Ba4 f2 Qa3 f1B Nc5 Qe4 Nd7 Qg2+ Ka1 Be5 Rb2 Beg3 Rc2 Bf4 Bgd4 Rh8 Rg1 h1N Kb1 h2 Qc5 Rh5 Q1a3 Ng3 Bb3 h1B Bf2 Bfe2 Rc1 Bf1 Bg1 N3e4 Ba4 Bh2 Qa8 Bde2 Bb3 Rh3 Rc4 Rc3 Rc2 Bd3 Rb4 B4g3 Kc1 Rb8 Kb1 Qd2 Rh8 Bf3 Rc4 Qg2 Ba4 Be1 Rc8 Bhg3 Rce8 Bde2 Rc1 Rh1 Bd1 Bd3+ Rc2 Bh2 Rf8 Bh4 Rh8 Rb6 Qg8 Rb7 Qg7 Ra7 Rd8 Ra8 Qf8 Rc8
1K2QrN1/NBrb1rRq/3P1Q2/3rB1N1/1b5n/3b1r2/6rR/RRQ1qkn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 g4 h5 b4 a5 g5 c5 g6 a4 b6 h3 d6 f3 g7 h4 b7 f2 b5 a3 b6 h2 d5 h3 d7 a2 Qe1 f4 Nf3 Rh5+ Ke6 Qc7 Rg1 h1Q Rg5 h2 Rg4 Ne7 g8R Nbc6 b8N Ng6 b7 Nh4 Bg2 f1B e4 Kd3 e5 c4 R8g6 c3 Na3 c2 Nb5 Bb4 Ng5 f3 d6 f2 Bf4 c1R Rh6 Nd4+ Kd5 Qg1 d8Q h1R e6 Qh7 e7 Rc7 e8Q Rh3 Nc6 Ne2 b8R Bd7 Qc1 Rf3 Nba7 Qh1 Qde7 Ng1 Be5 Ke2 Rb5 Rac8 Qf6 Rd8 Ne7 Ra8 Qeg6 Rf8 Qe8 Rf7 Ng8 Rf8 Rb1 a1R Ra5 Raa3 Ra6 Rg3 Be4 Raf3 Raa1 Rg2 Rg3 Qg6 Rh7 Qf5 Rg7 Qh7 Rh3 Rf7 Bc2 Rf8 Bd1+ Ke1 Rh2 Bd3 Ba4+ Ke2 Bc6 f1R Bb7 B7b5 Ke6 Bd7+ Ke7 R1f2 Qh6 R3f7+ Kd8 R2f3 Qf6 Nh3 Ra3 Qe1 Raa1 Kf1 Qd1 Rc5 Qc1 Rd5 Kc7 Ng1 Kb8 Rc5 Ne4 Rhf5 Ng5 Rc7 Bd4 Rb5 Be5 Rd5
2Qnn1KR/R1N1kn2/NP1R1r1n/b3B3/qn3q2/1b1B4/2N1Q2n/rQ4Rb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 Kf3 f5 g4 c5 d4 a5 b4 a4 e4 h3 e5 h2 e6 c4 g5 h4 g6 h3 d6 a3 e7 a2 g7 c3 b6 c2 d5 Nf6 g8R Qd7 b7 Rh6 b5 Nc6 b8N Nd8 b6 Qa4 Be3 c1N Rg7 Nd3 Ne2 Be6 Nbc3 Bf7 Rb1 a1N Na6 Nc2 Bd4 Ncb4 Be5 Rg6 Rg1 h1N Nd4 h2 Ncb5 Nhf2 Nc2 N2g4 Nbc7+ Kd7 e8R Nh6 Qe2 Be7 Rh8 Ne8 Rd1 Rf6 Kg2 h1B+ Kh3 f3 Kh4 f2 Kg5 f4 Rgh7 f3 Rg7 Kc8 d7+ Kb7 d6 Kc6 Rd2 Bb3 Rf7 Rf5+ Kg6 Rf6+ Kh7 Bf8 Bh3 f1N Bf5 f2 Bg6 Nh2 Rg7 Ndf7 d8Q f1Q d7 Nf4 Bd3 Ne6 Qc8 Qf4 d8Q Bd6 Qe7 Ned8 Qee6 Ra7 Qh3 Bc5 Qhf1 Bf2 Qb1 Be1 Qa8+ Kd7 Qc8+ Ke7 Rd1 Nf5 Kg8 Nbc6 Be4 Ba5 Rd6 Nb4 Bd3 Nh6+ Kh7 Qb5 Ne6 Rc7 Ne3 Rc1 Qbb2 Ra1 Qb1 Qd7 Nc2 Qa4 Ned4 Rf5 Nb5 Rf6 Rd7+ Ke6 Ra7+ Kd5 R7g6 Rd6 Nbc7+ Kc6 Qb7+ Kd7 Qc8+ Ke7 Rf6 N6g4 Kg8 Qh6 Rf4 Rf6 Rd4 Qf4 Rd6 Ngh6+
qn1NK2R/1b1N2nR/Prn2B2/bnB1N1R1/5b2/Q1Q1b1rB/4k3/1nr3B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 b5 a4 c5 f4 e5+ f6 h5 Kg6 e4 Kf7 h3 d3 h2 g5 e3 d6 h4 a5 c4 g6 h3 g7 c3 a6 c2 d7 e2 f5 e1B Nd2 Ke3 d4 b3 d5 b4 d6 b2 Ngf3 b1N Ne5 b3 Ra5 Ne7 g8R Rh6 Rh8 b2 Ndc4+ Kf2 Qg4 Na3 Qg7 b1N Nb6 Nec6 Bg2 Bc3 Be3+ Ke2 Bg1 c1B Qg3 Be1 Qc3 Bb7 Rc5 Qc8 d8N Nb5 d7 Be3 Ke8 Bd6 f7 Rg6 f8B Rg3 f6 Ra7 Qc1 Ba5 f7 Ra8 Qc3 Bc7 Nec4 Bcf4 Rch5 Ra7 Bc5 Ra8 f8Q Ra7 Bf2 Ra8 Rg1 h1R Ne5 h2 Bh3 Ra7 Rg2 Rc1 R5h7 h1N Rg1 Rg5 Rg4 Ng3 Bg1 Rg7 Rg5 Nf5 Qg8 Ra8 Qgb3 Ra7 Qa3 Rg6 Rgh5 Rg3 Rg5 Qc7 Ne6 Qc8+ d8B Ra8 Nbd7 Ng7+ Kf7 Ra7 Bf6 Ba8 Ng6 Rb7 Ne5 Rb6 Rd8 Qc7 Rdh8 Qa7 Nd8 Bb7 Kf8 Qa8 Kf7 Nh5 Ke8 Ng7+
2br3Q/k1b1NPQ1/B2R3q/b2q2Qn/3NRNKb/qN5R/4nb2/2B1b2r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 h5 g4 e5 f4 c5 d4 Kc7 d6+ Kb6 f5 a5 f6 e3 Kf3 c4 f7 h3 g5 c3 d5 h4 g6 e2 g7 e1B d7 a4 d6 h2 Ba3 c2 Bh3 c1B Nd2 e4+ Kg4 e3 Ne2 Bf2 Bf1 h3 Nf4 e2 Nb3 Bd2 Bc1 e1B Qf3 a3 Qc3 Kb7 b6 a2 b5 Nc6 Qd4 Kb8 b7 Ba5 Qb2 Ka7 b8N Be7 b6+ Kb7 Bd3 Nd4 Nc6 Ne2 Ncd4 Qf8 Ba6+ Kb8 b7 Ka7 b8R Beh4 Rb4 Qe7 Rb1 a1B Qc3 Rh7 Rb2 Rh6 Rd2 Bc7 Qg3 Bc3 Rc4 B3a5 Ra4 Re6 d8Q Rh6+ d7 Qa3 Qg5 Rh5 Kf3 Rh8 d8Q Nf6 g8N Nh5 Ne7 Rh6 Qh8 Rh7 Rg1 h1Q+ Qg2 h2 Rf1 Bb7+ Kg4 Rd8 Qg3 Qd5 Rh1 Rh6 Qgg7 Rh7 Qe3 Rh6 Qee5 Rh7 Qeg5 Rh6 Rd3 Rh7 Rh3 Rh6 Rg1 h1Q Rgg3 Qh2 Rc3 Qhh1 Rc6 Bc8+ Re6 Qhe4 Rb4 Qg6 Rb6 Rh7 Rd6 Qh6 Q5g6 Bg5 Bb5 Nhg3 Rh1 Qh2 Ba6 Rh5 Qf5 Bf6 Re4 Qh4+ Kf3 Qg5 Rh2 Qh6 Kg4 Rh3 Rh1 Bh4 Rh2 Nh5 Rh1 Bb7 Qfg5 Rh2 Rg1 Rh3 Rg3 Rh1 Rh3 Bc8+
2qQ1q1q/qR2P2r/QRNr2bB/7N/1q6/2k1K1N1/qNBn3r/2Qn2bR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 b6 c5 b7 h5 e5 f5 g5 a5 d3 a4 g6 c4 d6 c3 g7 a3 e6 f3 b5 h3 b6 f4 d7 h2 Nd2 a2 Qe1 c2 Be2 h4 Bf1 h3 Nb1 Nh6 g8Q Bc5 e7 Na6 b8N Qc7 d8N Bf5 b7 Bg6 Na3 Qa5 Rb1 a1Q Qd2 Qa2 Nd7 Rb8 Rb5 Qb4 Qe6 Ba7 Nf6 Nc5 Nc4 Nb3 Qa6 Ng4+ Ke1 f2+ Ke2 Rc8 b8R Rc6 Nb2 Rh4 Qd1 Rh6 Bd2 c1Q R8b7 Qcc5 Qc1 f3+ Kd1 Bb6 Bg5 Nd2 Ne2+ Ke5 Ng3 Kd4 Rg1 h1R Nfh5 h2 Nf4 Qf5 Ra5 Qc8 Rb5 Bc5 Be2 f1Q+ Kc2 Qf2 Bd1 Qe3 Re1 f2 Rf1 Qb8 Rg1 Qee6 R5b6 Qec8 Re1 Qa7 Rf1 Rg1 Re1 Rf6 Rf1 Rg2 Nc6+ Ke3 Rg1 h1Q Rf1 Qh3 Rg1 f1Q Rh1 Qh8 Nfh5+ Qff4 Nd8 Re6 Nc6 Rh7 Bh6 Rf2 Ne5 Rh2 Nc6 Re4 d4 Re6+ Nf5+ Ke4 d5 Bg1 d6 Nf2 d7 Rd6 d8Q Kd5 Be2 Kc5 Bd3 Qff3 Nfg3 Qff8 Be4 Qc8 Bd3 Nfe4 Kd1+ Kd5 Ke1 Nf2 Bc2 Kc5 Ke2 Kd5 Na5 Kd4 Nc6+ Kc3 Ke3 Nd1#
1Nb1knBB/2P1B3/2r3R1/R2Qb3/3R4/4b1q1/1KbbqbqQ/n1QNR2r w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 f4 e5 h4 g5 c4 d5 Kc2 a4 b4 d3+ Kb2 d2 f6 d4 f5 e4 h5 e3 h6 g3 b6 g2 b5 d3 c5 g4 c6 g3 f7+ Ke7 b7 e2 h7 e1Q b6 Nh6 Nf3 g1B Nd4 g2 Nc3 Nd7 b8Q Ra6 b7 Qg3 Qc7 Bf2 b8Q g1B Qf4 Bg7 f8R Ng4 Rg8 Bh6 Rg6 Qg8 f6+ Ke8 c7 Rc6 Qb7 Qg2 Qh2 Nf8 Be2 Ne3 f7+ Ke7 Qe1 Nc2 Nd1 Bg5 Ra3 Na1 Qb3 Bfe3 Qd5 Bgf2 Bg4 Qg7 Be6 Qe5 Rf1 Qeg3 Rg1 Nd7 f8B+ Ke8 Be7 Nf8 Bg8 Bgf4 Rc3 Be5 Rc5 B5f4 Ra5 a3+ Kb1 Bg5 Bb2 Bh6 Bc3 a2+ Kb2 Bhg5 Ne6 Bgf4 Nc5 Be5 Na6 B5f4 Bd4 Be5 Nc3 d1Q Nb8 d2 Qf1 Qh5 Qc1 d1B Re1 Bc2 Nd1 Qe2 Be6 Rg8 h8R B5f4 Rh4 Rh8 Bc3 Bd2 Bg8 B4e3 Qg1 Rh7 Bh8 Rh5 Rd4 Rh1 Ra3 Nb3 Ra5 a1B+ Ka2 Bac3 Qh2 Na1 Ka3 Bb4+ Ka2 Bd6 Kb2 Be5
2k1n1K1/1RP3b1/3b1Qr1/RbN1rq2/nrrRq3/r3B1Q1/3B2R1/1Qr1N2B w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kd3 a5 Kc4 h5 Kd5 d6 b4 Kd7 g4 d3 c4 d2 f4 a4 f6 e4 f5 e3 b6 h3 b5 e2 g5 e1R f7 h2 b7 a3 g6 h4 b6 h3 f6 a2 g7 Ra3 c5 Rh4 Bg2 Rb4 Nc3 Na6 b8Q Re2 b7 Qa5 Qc2 d1R+ Bd2 Rc1 Nf3 Rg1 Rd1 a1B Na4 Kd8 Qb1 Re5+ Kc6 d5 Ne1 Bd6 f8B d4 f7 Nf6 g8R d3 Bfh6+ Ne8 f8Q Bd4 Bhe3 Bb2 Bd5 Rg6 Rg1 h1Q Rg2 h2 Qf6+ Be7 Rg5 Qe4 Rg7 h1R Rg2 Reh5 Qg3 R1h4 b8R Re5 Rb5 Bh3 Rh7 Kc8 Rh5 Bd6 Rb7 Bg4 Rf5 Be2 Rh5 Qf3 Rg5 Rhc4 Be4 Re6 Kd5 Qb5 Re5 Qd7 c6 Nc5 c7 Bd4 Nc3 Na4 Rg5 Qg4 Bf3 B4e5 Ne4 Re7 Nc5 Qdf5 Rh2 Bf1 Bh1 Qe2 Rg2 Re6 Rg4 Re7 Rd4 Re6 Bc3 d2 Rc1 d1R Bcd2 Qeg4 Rc2 Rc1 Ra2 Re7 Ra1 Rh7 Ra2 Rh5 Ra1 Qgf4 Ra2 Q5e4+ Ke6 Qff3 Kf7 Bd3 Qff4 Bg7 Qf6 Re5 Kg8 Qff5 Rb2 Rb6 Rb5 Bf1 Ra5 Rbb4 Nd7 Rc6 Nc5 Bb5 Na6 R6c2 Nc5 Rcc4
1b1R3r/PQr2qk1/1B1r2q1/rNRr4/K2b1BN1/5bQ1/1QB4n/Q4nrN w - - 0 1 illegal: No possible last move, all moves rejected
2b5/Pbr3br/N2k2B1/1Bn2R1n/1N3qn1/Q1b1R2Q/nN1rn2B/3RKR2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 a4 h5 f4 c5 g4 b5 d4 e5 f6 e4 f5 b3 f7 e3 f6 b2 a5 b4 g5 b3 d6 h3 a6 h4 d5 h2 g6 h3 a7 c4 g7 c3 Nd2 b1R Ne4 b2 Qd3 c2 Ra3 Qa5 Nf3 Na6 Ne1 Nh6 g8B Qa4 Bh7 Bg7 f8Q Ng4 f7 Rb8 Bg6 Rb5 Qc3 Rc5 Nd3 Ra1 Rb3 b1N Nb2 Rh5 Qh8 Rh6 f8R Rc7 Rf5 Rh4 Rg1 h1B Qa5 Qb4 Qa3 h2 Bd2 c1N+ Kd1 e2+ Ke1 Qc4 Bf4 Rh5 Re3 Nc3 Qh6 N3a2 Nc5+ Kd8 Bg3 Qf4 d7 Bf3 Qh7 h1N Bh2 Ng3 Rh1 Be4 Qh8+ Ke7 d8R Nb8 Qh7 Nd7 Na6+ Nc5 d6+ Ke6 d7 Rh6 Kd2 e1B+ Kd1 Ba5 Bb5 Bac3 Rf1 Rh3 Rd3 Beb7 Re3+ Bce5 Ke1 Nce2+ Nd1 Rb1 Qh6 Rb3 Nb2 Rd3 Qh4 Nge4 Qg3 Rh7 Qh3 N4g3 Rdf8 Ng1 d8N+ Kd5 R8f7 Nh5 Nc6 Ne2 Rd7+ Ke6 Ncb4 Rd4 Rd3 Bef6 Rd1 Rd2 Re7+ Kd6 Re3 Bc3
1R1Nrr2/k7/3q2rN/n1rn1B2/2QQ1Bnr/1n1R2Kq/2R3bP/b2R2QB w - - 0 1 illegal: No possible last move
B2K1bRq/b1Q3n1/rQ4Nb/2b1RbQ1/nNqB2Rr/2Q1r2B/6Pk/1r6 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 Ke6 b4 Kf5 c4 e5 b6 d5 c5 a5 b5 h5 c6 d3 Kc3 e3 g6 a4 b7 e4 Kd4 e2 g7 Kg4 Ke5 Kg3 f5 e1B c7 e3 b6 h4 f6 h3 f7 h2 Ra3 d2 Bc4 d4 Bd3 e2 Ba6+ d3 Nc3 Nh6 Na2 Qh4 Qc2 d1R Nb4 Nf5 g8R+ Ng7 Nf3 d2 Qc3 Bf2 Re1 h1Q Bb2 Qc4 Kf6 B2c5 Nh4+ Kh2 Ng6 Bf5 c8B Rb1 Bb5 d1R Bc6 Na6 b8Q+ Rd6+ Be6 Rh5 b7 Rh4 Qc7 Re8 b8Q Ba7 Ra1 a3 Ba8 Nc5 Qbb6 Na4 Ra2 Re7 Ba1 Re8 Rd2 a2 Rd4 Re7 Bb2 a1B Rf4 Rd3 Rg4+ Rg3 Bc8 Re3 Bd7 Bc5 f8Q Re6+ Kf7 Rd6+ Ke7 Re3+ Ne5 Rdh6+ Kd8 Rc6 Qf6 Bf8 Rd1 e1B Rd5 Bd2 Ng6+ Rd6 Re5 Bc1 Qbb8 Ra6 Qg5 Bd2 Qbb6 Bc1 Qcd4 Bd2 Bc3 Bb2 Qd3 Ba3 Bd4 Bdc1 Qc3 Bd2 Na2 Bac5 Nb4 Qd1 Rf4 Qh5 Rg4 Qh8 Rf4 Bc2 Bh3 Bf5 Rg4 Re4 Qgf6 Bh6 Qg5 Re3
2N1BQ2/5BRr/2Q2nNr/Q1B3b1/Qnqn3n/qb3r1P/Nr2krRK/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 e4 Ke5 b4 Kd4 b6 c5 e5 g5 b7 f5 d6 a5 b5 g3 d3 a4 e6 a3 e7 c4 e8B c3 h3 c2 b6 a2 d7 g4 Nc3 Na6 b8N Qe7 b7 Nf6 Nd5 Bh6 d8Q Be6 Qd7 Rh7 Ba3 c1Q Qb5 Bg5 Qbb3 Qc4 Nb4 Ke3 Rh2 f3+ Kh1 f4 Qbc2 f2 d4 f3 N8c6 Rb8 d5 Qf8 Bg2 f1R d6 f2 d7 Bd5 Rc1 a1N d8Q Nb3 Na7 Nd4 Na2 Nb4 Qa5 Qe7 Bf7 Rbh8 b8Q Rh6 Qca4 R8h7 Rc2 Be6 Qa1 Rb1 Q4b5 f1R Qf8 Rf2 Bc6 Rb2 Nf3 g2+ Kg1 Kd3 Nc8 Bd5 Rc1 Ke2 Nh4 Qa7 Ng6 Rf3 Rh1 Be6 Kh2 g1N Bce8 g3+ Kg2 Qe7 Rh2 Rf2+ Kh1 Ngf3 Rg1 Nh4 Qc6 Nbd5 Qa7 Bf5 Qa5 Bc1 Nh8 Bc2 Nb4 Qec5 Qa2 Bd1 Qb3 Bf4 Qba4 Bb3 Na2 Be3 Rc1 g2+ Kg1 Qe7 Rc3 Bf4 Rg3 Rf3 Rg7 Bg5 Ng6 Qd6 Rh1 Qdb4 Kh2 g1R Qfc5 Rgb1 Rg1 Rbf1 Rg2+ R1f2 Qf8 Qe7 Bb4 Qec5 Be1 Qa3 Bb4 Qc1 Be7 Qc4 Bc5 Nb4
NRQ5/k2q1n2/3qR1K1/n3rQn1/3b1P1B/q3B1q1/bN4B1/qrnQN1Q1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kf4 c5 Kg5 Kc7 g4 Kb6 d4 h5 b4 e5+ Kg6 a4 f4 e3 g5 a3 d6 c4 d7 c3 d5 h3 d6 e4 Rh2 e2 Rh1 e1N Qd3 h2 Qh3 c2 Nc3 h4 Qf5 a2 Na4+ Ka7 Nf3 h3 Nb2 e3 Rb1 a1Q Bg2 e2 Be3+ Qb6 d8B c1N Bf6 Nh6 d7 Nf7 d8Q Qa3 Qd1 Bc5 Rg1 Qd6 b6+ Kb7 b5 h1Q Rf1 Nc6 Rf2 Kb8 b7 Ka7 b8N h2 Nd7 Re8 Nb6 Rb8 Na8 Re5 Rf1 Bd4 b6+ Ka6 b7 Na5 Rg1 Ka7 Rf1 Be6 Bd8 Ned3 Ne1 Nc5 Rf3 Qf1 Rh3 h1Q Rh6 Ne4 Be7 Rf8 Bf6 Ba2 b8Q+ Ka6 Qbc8+ Ka7 Nbd3 Rfe8 Rb8 Qh3 Nb2 Rf8 Kg7 Qf2 g6 Qfg3 Bh4 Rd8 Kh7 Rd7 g7 Rb7 g8Q Neg5+ Kg7 Rb6 Re6 Rb4 Ned3 e1Q Kg6 Qec3 Ne1 Qhg4 Nbd3 Qa1 Nb2 Rb3 Qge8 Q4h3 Qb5 Qhg4 Qf1 Q4h3 Qg1 Rb4 Na4 Rb1 Nb2 Qd3 Qe4 Qh1 Rf6 Q3a3 Qec2 Qhh3 Qcd3 Qhe6 Qf5 Qe8 Re6 Qed7
B1q3r1/2R1rb2/3Q4/B2bQ1Nk/P1b1BRnr/q3N1b1/4RbnR/4rQK1 w - - 0 1 illegal: No possible last move
Qq3q1R/B4b1r/bQ2qb2/brRNkP2/4n1BN/bRn1N1q1/KR5B/8 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 d4 Kf6 Kd2 h5 Kc3 e5 Kb3 c5 g4 a5 d6 e3 f5 e4 b6 e2 d5 e1Q b7 a4+ Ka3 e3 b4 e2 d7 c4 d6 h3 b5 h2 b6 h4 Nf3 h3 Bg2 c3 Bf4 c2 Nbd2 c1B+ Ka2 Ne7 Qb3 Ba3 Rb1 Ra5 Nc4 Na6 b8B Nd5 b7 Nc5 Rb2 Qh4 Bf1 e1Q Be2 Rh6 Rg1 h1Q Be3 Qb4 Rc1 h2 Bd1 Qh3 Nh4 Qe4 Rc3 Qde7 d8R h1B d7 Rh7 Bh2 Qg3 b8R Bh6 Rh8 Qf8 Bf2 Bd2 d8Q+ Qee7 Rb5 Ba6 Qa8 Qee8 Rb7 Qb6 Rc7 Qeb8 Qb4 Qc6 Rcb3 Qcd6 Qbb7 Rb5 Bd4+ Qde5 Ne3 Ba5 Rc8 Be4 Be2 Bd3 Bf3 Ne4 Ba7 Bc4 Qb6+ Qed6 g5+ Ke5 g6 Qd7 g7 Ndc3+ Ka1 Qc6 g8N Bf7 Ne7 Qe6 Rc4 B3b4 N7d5 a3 Bg4 a2 Rc2 Be7 Kb2 Bf6 Rc5 a1B+ Ka3 Na4 Re2 Bb2+ Ka2 Ba3 Reb2 Nac3+
1bQ1n3/1R2n1Bk/2R1N1qr/rP1n1q2/1Q4n1/qQ3BRB/bq1N3K/1n2Q3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 Kf7 Kg2 Kg7 e4 c5 e5 h3+ Kh2 h4 g5 c4 d6 c3 d7 a4 d5 f3 d6 c2 b6 a3 b7 a2 g6 f4 e6 f2 b5 f3 e7 Rh6 e8B Qb6 d8Q Na6 b8R Nc7 d7 Ne7 Qd2 Ra5 Ba3 c1Q Qe3 Qb2 Bf7 Ne8 B1c4 f1Q+ Qf2 Nd5 Ne2 Bd6+ Nf4 Bb7 Rc8 Bb8 Rg1 Bc6 Qe2 f2 Qe1 Qd3 Bb3 Qf5 Be6 Bb7 Bd1 f1N+ Kh1 h2 Nd2 Kh8 g7+ Kh7 Bf3 Qa6 Rac1 a1Q Bf8 Qaa3 Rg3 Bc6 Kg2 h1N Rc7 Nf2 Qe7 Ng4 d8Q h3+ Kg1 Bd7 Rb7 h2+ Kg2 h1N Qb4 Qd6 Rc6 Bc8 Bd7 Qdf6 Ne6 Q6g6 Rh3 Nhg3 Qc7 Ne4 Rg3 Nec3 Qd8 Nb1 Qc7 Kg8 Kg1 Ne7 Kg2 Kf7 g8Q+ Kf6 Kg1 Nfe3 Qd8 Nd5 Qc7 Qgh5 Bg7+ Kg6 Qf7+ Kh7 Kg2 Nf2 Qd8 Qhg6 Kg1 Nh3+ Kh2 Nf2+ Kg2 Qd4 Nf4 Nb6 Nd5 Qdb2 Nc7 Qc5 Bh3 Be6 Qc8 Ba2 Qfb3 Qcf5 Ne6 Nbd5 Kh2 Ng4+
2Rq1kN1/1Qb1nBNr/B3Pnb1/8/3n1Kb1/2Q3Bb/1bNr3R/1Q1nq2Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 g4 h5 e4 f5 b4 c4 d4 h3 d6 a4 b6 h2 d7+ Ke7 e5 c3 e6 h4 b5 a3 g5 h3 g6 c2 g7 a2 b7 Rh7 b6 Nc6 b8Q Nf6 g8B Ba6 b7 Bd3 d5 Ra4 Be2 Rd4 Na3 Bh6 d6+ Kf8 Bd2 c1B Bf7 Bb2 Nc2 Ne7 Rc1 a1N Be1 Nb3 Bg3 Rd5 Bf1 Bg5 Ne2 Nd4+ Kf2 f3 Nf4 Bh4 Ke3 f2 Nh5 Be2 Qa7 Bg4 Ba6 f1N+ Kf4 Ne3 Qf1 Nd1 b8Q Ne4 Qab7 Nf6 Rg1 h1B Ng7 Bg2 Rh1 Be4 Rh2 Bd3 Qh1 Be4 Rf2 h2 Q8c8 Bd3 Qc3 Be4 Qg1 h1B Rh2 Bhg2 Qge1 B2h3 Qh1 Qb6 d8N Qa5 Nc6 Qd8 d7 Rd6 Ke5 f4 Qa7 f3 Qb7 f2 Kf4 Nc8 Ne7 Bg6 Ng8 f1Q+ Qhf3 Qe1 Qh1 Qe8 d8Q Ne7 Qda5 Qd8 Qa2 Rd5 Ra1 Rd7 Qb1 Rd6 Ra4 Rd7 Rc4 Rd5 Bf2 Rd7 Rc8 Bg3+ Kg5 Bc7 Bg3 Rd6 Kf4 Nb5 Qc5 Rd2+ Qe5 Bb6 Qec7 Nd4 Qc3 Bc7+
3N1K1b/rRq3B1/2q1P1R1/2q2Qnb/1b2qb1k/1qBN4/Q3Br2/BNQ4n w - - 0 1 illegal: No possible last move, all moves rejected
4k3/1B1bPqR1/r3N3/rNnq3Q/3R2N1/2nB1Q2/1bK2nQr/BrB3nn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 e4 f5 g4 h5 b4 f3 g5 f4 b6 a4 e5 a3 d6 f2 d7+ Ke7 d5 c4 g6 h3 g7 a2 e6 c3+ Kc2 h4 b5 h2 d6+ Kf6 e7 Kf7 b7 f3 b6 h3 Bd3 f1Q Na3 f2 Nb5 Na6 b8Q Nf6 b7 Nc5 Qf3 Ra6 Qa8 Rh5 Qg2 Nd5 b8B Rh4 Rb1 a1R Nf3 R1a5 Rg1 h1N Rb4 h2 Rd4 Rh5 Nd2 Rh7 Nc4 Rh3 Ne3 Rh4 Kb1 c2+ Kb2 Nc3 Ng4 Qd1 Qac6 Qe8 d8Q f1R d7 Nf2 Be5 h1N Qb7 Rh2 Qbf3+ Ke6 g8B+ Qf7 Qe8 Bg7 Bgh7 Qd2 Bhe4 Qd1 Bcf4 c1N Bb7 N1e2 Bc1 Re1 Qh8 Bf6 Qh5 Bh8 Bd6 Be5 d8N+ Kd7 Ne6 Ke8 Bb8 Bd7 Bc7 Bf6 Be5 Qd2+ Bc2 Qg5 Bd3 Bh8 Bf6 Qd5 Kc2 Rd1 Re1 Ng1 Re5 Bg7 Rg5 Bh8 Be5 Bf6 Rg7 Rf1 Bef4 Be5 Bb2 Bf6 Ba1 Rb1 Bc1 N3a4 Re4 Bb2 Rd4 Nc3
1N2qnrn/P2Rn1rR/3RBnB1/K7/r4Q2/Q3r1bB/n1bB1N2/q5kN w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 e4 h5 a4 b5 g4 f5 a5 c5 g6 f3 g7 f4 g5 b3 Kc3 f2 g6 f3 a6 b2 Ra3 h4 Be2 f1R Qb3 h3 Bh6 b4+ Kc4 h2 Kb5 f2 Nc3 b1Q Bh5 c4 Bf3 Qe8+ Kb6 Ne7 g8Q Qa1 g7 Re1 Bd2 f1R Nh3 Bf5 Nd1 c3 Ndf2 c2 Bg2 c1N Qf7 Nd7+ Ka5 Re3 g8B Ng6 a7 Na2 Qb2 Rh7 Rd3 Rg7 Qa3 Rd1 Bf1 Nh8 Bg2 Rg1 Bf1 R1g4 e5+ Kc7 d6+ Kc6 e6 Kd5 Qf6 b3 Qg5 b2 Qf4 b1N e7+ Re6 Bf7 Nbc3 Bg8 Kc4 d5+ Ne4 Bg2 Re5 Be6 Rb8 Bf1 Rb4 Rd4+ Kc5 Rd3 Nef6 Bg2 Re3 Bf1 Ne5 d7 Neg6 d8R Be4 Rd4 Bc2 d6 Rgg3 d7 Rg8 Rg1 h1N Rd6 Rg4 Rg2 Ng3 Nh1 Nf5 N3f2 Bh6 Rg1 Nf8 Bh3 R4g7 Rg6 Bg5 Rh6 Bh4 Rh5 Bg3 Rh7 Qh5 e8B Ne7 Bg6 Qhe5 Ra8 Qe4 d8N Qc6 Qc1 Qe8 Nc6 Rbe4 Rad8 Rc4 Nb8 Rce4 Bd5 Kd4 Ng4 Kd3 Be6+ Ke2 Qa3 Rd4 Ngf2 Rc4 Bhg4+ Kf1 R8d7 Kg1 Bh3 Ra4+
3q3n/N1r1N3/K1b3qn/2r2b1Q/kB1NNb2/qr1B4/1RR4P/RBQ1b2q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Qh4+ Kd2 Kd7 Kd3 f5 Kc4 a5 e4 g5 b4 c5 e5 f3 d6 g3 b6 Kc6 d7 g4 d8R g2 b7 a4 e6 f4 e7 f2 e8B+ Nd7 b8Q g3 Bg6 a3 Qe5 a2 Qf6+ Bd6 Bd2 f3 Be1 Ra7 Bd2 Rc7 Qe5 Nf8 Ne2 g1B Nbc3 g2 Rb1 a1Q Rc1 Qa3 b5+ Kb6 Qf5 Ka5 b6 Bf4 b7 Rh6 Bh7 Ng6 b8N Nh8 d5 Rb6 d6 Nh6 d7 Rb3 Qh5 Qf6 Bc2 Qe7 Ne4+ Ka4 Rg8 Qg5 d8N Bf5 Nd4 Qh4 Bfd3 f1B Nd6 f2 Nd8c6 Qd8 Bb4 Be2 Rg5 f1Q Na7 Bf3 Nbc6 Bf2 Ne7 g1Q Rg2 Bc6 Ne4 Bh4 Re2 Qg6 Ra1 Bf2 Bb1 Qfg2 Rg1 Qh1 Rg2 Be1 Rb2 Bcd7 Kd5 c4 Rgf2 Bc6+ Kc5 c3 Kb6 c2 Ka6 c1R Qd2 Rcc3 Qc1 Rc4 Rfc2 Rc5
3q1n1q/1RKRNbq1/b2Q3R/k7/2nR3n/br2rQ1Q/1B3bP1/1N1B1q1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Ke5 Kc7 b4 Kb6 d4 h5 e4 f5 d6 c4 d5 a4 d7 h3 d6 c3 Na3 c2 Bc4 h2 Nh3 f3 Qe2 h4 Ra2 f2 Nb1 f1B Bb2 c1B Kd5 f4 e5 f3 e6 f2 e7 a3 e8Q Ba6 Qf3 Nh6 Be2 Nf5 Qeh5 Be3 Bd1 Bc4+ Ke5 f1Q Nf2 Bf7 Qhg4 Be7 Qgh3 Re8 Ra1 Ra7 Ra2 Rb7 Ra1 Qc8 d8N a2 d7 Nd6 Nc6 Qc7 d8R Nc4+ Ke4 Qc8 Rd4 Qd8 Rd7 B7c5+ Ne7 Bc1 Rd4 Nd7 Kf5 Nf8 Rd7 Nd2 Ke5 Bd4+ Kd6 Rb8 Ne4 Bf2 Ng3 Rb7 Nef5 Re3 Ne7 Ka7 Kc6 Nc4 b6+ Ka8 Bc3 Ba3 b5 Rb8 b7+ Ka7 Rg1 h1Q Bb2 Qh2 Nh1 Qe5 Rd4 Qh8 Rd7 Qd3 Re1 Qf1 Re2 Qg7 Red2 Qh8 R2d4 Qg7 Qe6 h3 Qh6 h2 Qhh3 Qe8 Kc7 Qh8 Nd2 Qg7 Rc1 a1Q Nb1 Qh8 Ng3 h1N Rc3 Rd8 b8R Qg7 Rb6 Rb8 Rb3 Qh8 Rh6 Rb6 Nh5 Ng3 Rb4 Nf5 Ng3 Nh4 Nh1 Rb8 Rb3 Bb7 b6+ Ka6 Rb4 Ka5 Rb3 Ba6 b7 Ra8 b8Q Qd8+ Kc6 Qg7 Qd6 Rb8 Rbb7 Qh8 Rbc7 Rbb3 Rb7 Qa8 Kc7 Qg7 Bc1 Qc3 Bb2 Qh8 Rf4 Qcg7 Rd4 Qd8+
b1Knb2q/2rB2N1/QqR1Q1RB/1R3b2/rQ4nq/1n3qkN/1PB4b/2R5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 g4 c5 d4 h5 b6 a4 e3 h3 b7 h4 g5 a3 g6 h2 g7 h3 Qa4 a2 Qa6+ Nc6 b8R c4 Bd3 f3 Nd2 c3 Bc2 f2 Nf1 Nh6 g8R Qb6 Ng3 f1B Nh5 Rh7 Ng7 f5+ Kf4 Bg2 e4 Nd8 Kg5 f4 Kf6 f3 e5+ Kc7+ e6 Kd6 e7 f2 e8B f1B Bc6 Bf5 Bd7 Bb5 Bg5 Ba4 Rc1 a1Q Bd2 Qa3 Bg5 Nhf7 Bh6 Ne5 Rc8 Qb4 Rc5 Bc6 Rb5 Qb3 Ne2 Qb4 Nf4 Qa3 Rhd1 h1Q Rg1 h2 Nh3 Bge4 Rg6 Qf3 Rh8 h1Q Rg8 Qa4 Rh8 Ne6 Rg8 Ng4+ Kf7 Ra7 Ke8 Be7 Rh8 Bg5 Rf8 Bf4 Rff6 Kc7 Ke7 Nd8 Re6 Bh2 d6+ Kb8 d5 Ra8 Bc8 Be8 d7 Kc7 d6+ Kc6 Rb3 Kd5 Rb5+ Kd4 Ref6 Ra7 Re6 Ba8 Ref6 Nb7 d8Q Qb4 Qc7 Nd8 Qcb7 Qa4 d7 Qc4 Bb1 c2 Rc6 Ke4 Qb8 Qg8 Qd6 Qh8 Qc5 Nb7 d8Q Qe1 Qd7 Nd8 Qca3 Qef2 Qb4+ Qfd4 Qa2 Ra4 Qa7 Qc4 Qa6 Qcd4 Bd7 Qc4 Ng5+ Kf4 Nh3+ Kg3 Qab3 Qe4+ Qe6 Qc4 Rd1 c1N Bc2 Nb3 Rc1 Qce4 Kd6 Qc5+ Kc7 Qb6+ Kc8 Qed4 Qbc4 Qf6 Qce4 Qh4 Qb4 Kg2 Nh5 Re7 Ng7 Bf7 Be8 Kg3 Rf1 Rb7 Bd7 Be8 Rc1 Rc7+
1b2qB2/QB3r2/K1nQ4/qB3rn1/RBNr2b1/b2R2nP/1N3b2/1n2RN1k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Ke7 d4 Kf6 Kd2 Kg5 Kc3 Kh4 Kc4 c5 e4 g5 b6 a5 Kb5 f5 d6 g3 h3 f3 d5 a4 d7 f4 d6 f2 e5 g2 e6 Kg3 e7 a3 e8B c4 b7 g4 Qe1 a2 Bb2 c3 Bd3 f3 Bf7 c2 Qd1 f1N Bc3 c1N Na3 f2 Bd5 Ra7 Nc4 Rh4 Nb2 Nc6 b8B Nb3 Nf3 g1B Nd2 Qe8 d8R Nh6 d7+ Bd6 Bg7 Nf7 Bf8 Bh2 Bc7 Ng5 Ba5 Rb7+ Ka6 Be7 b5 Ba3 b6 Rc7+ Kb5 Rb7 Bab4 Rc7 Bg8 Kg2 b7 g3 b8Q Rd4 Qa7 Rb7+ Ka6 Rb5+ Qb7 Rf5 Bb5 Rf7 Qc1 Rf5 Qc5 Rf7 Re1 a1Q Qd6 Rf5 Re4 Qe1 Bd5 Qa1 Nf3 Nbd2 Rg4 Nb1 Re4 Ne3 Re1 f1R Nd2 Kh1 Rf4+ g2 Re4 g1B Rh4+ R1f3 Nf1 Rd1 Rd4 Bf2 Rd3 Qg6 Re8 Qa2 Re4 Qe8 d8N Rf7 Rh4 Bg4 Qa7 Nf5 Nb7 Ng3 Na5 Qa1 Nac4 Qa2 Be6 R3f5 Bc8 Rd2 Bb7 Qa1 Rb3 Rd4 Rd3 Ne2 Qf6 Bb8 Qd6 Ng3 Rh5 Bd1 Rh4 Rg4 Ba5 Bac5 Ne5 Rc4 Rhe4 Bg4 Rf4 Qa3 Rfe4 Qc3 Red4 Ba3 Rf4 Rc5 Ra4 Rd5 Nec4 Qd2 Bc3 Rd4 Ba5 Qde3 Bd2 Qd8 Ba5 Qee8 Bb4 Qa5+
1R4b1/1B6/n1RQ1B2/r2N1r2/krqbQKQb/5QP1/nb2qR1N/4Nn1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 e4 a5 b4 f5 d4 h5 e5 h3 b6 h4 d6 Kc6 d7 c4 b7 Kb5 g3 a4 e6 a3 e7 h2 e8Q a2 d5 h3 d6 Rh4 Qe3 Ne7 Qde1 Qe8 d8N Ra5 d7 Ka4 b5 c3 b6 c2 Nd2 Na6 b8R Nd5 b7 Be7 Qd3 Ndb4 Bb2 c1B Bf6 Bb2 Rc1 a1B Bg2 Na2 Nc6 Rh5 d8Q Be6 Nb4 Bg8 Rc3 Qb5 Rcc8 Qc4 Q8d6 Bd4 Qc3 Bb2 Rc6 Rh4 Nd5 Rg4 Bg7 Bh4 Qe4 Rg5 Qce3 Rg4 Nf1 Rg5 Kf2 f3 Bf6 f4 Qde6 Rh5 Qg4 Re5 Rf8 Rf5 b8Q Ba7 Qd6 Bad4 Ke1 f2+ Kd2 f3 Rb8 Be5 Q3d3 Bec3+ Ke3 Be5 Nd2 f1Q Qc3 f2 Ngf3 Qd1 Rf1 h1R Ne1 h2 Ndf3 Rg1 Qcd3 h1R Nh2 Qc2 Qef3 Bed4+ Ke4 Rg5 Kf4 Qe2 Qde4 Re5 Nd3 Rh5 Rd1 Rf1 Rd2 Rb1 Ne1 f1N Rc2 Ba1 Rd2 Rb4 Rc2 Bab2 Rd2 Qd1 Rf2 Qde2 Qfd3 Qc5 Qe8 Rh7 Nc3+ Ka3 Rcb6 Rh6 Bb7 Rh8 Qee4 Rh5 Rc6 Qc4 Nd5+ Ka4 Qdf3 Rf5+
1B1Rnn2/bN4K1/1q5R/QB1qr1bN/Q3NQ1r/1br3Pk/Q4qq1/3b2B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 f5 d4 h5 e4+ f3 d6 c5 g3 a5 d7 h3 d5 f4 b6 h4 b7 h2 d6 a4 b5 c4 b6 h3 Qc2 a3 Nc3 a2 Qb3 f2 Nb5 c3 Bg2 f1B Ke6 c2 Kf7 f3 e5 f2 e6 Ra5 e7 Rh4 e8Q Nf6 Bc6 Be7 Be3 c1R Kg7 Be2 Nc3 f1Q Ne4 Qf2 Bb5 Rc3 Rd1 a1B Qa2 Qc7 d8N Be6 d7 Bb3 Rd3 Bed1 Ne2 Bc5 Nf4 Bd4 Bc4 Re5 Bb5 Bb2 Nh5 Bc1 Nf7 Bd2 d8Q Nbd7 b8Q Nf8 b7 Qb6 Nfd6 Bc5 Bd4 Bg5 Be3 Bd4 Qbc7 Bc5 b8B Bd4 Nb7 Bc5 Rf1 h1Q Qd4 Qhg2 Rh1 h2 Rd2 Qe6 Qca5 Ba7 Qda4 Qa6 Rd8 Qb6 Qf7 Kh3 Bd4 Ng8 Qf4 Nf6 Re1 h1Q Re2 Qff3 Bg1 Qgf2 Red2 Qhg2 R2d6 Qd3 Re6 Qd5 Red6 Ng4 Rg6 Nf6 Rh6 Ne8+
2qQr1qb/1k6/1nR3N1/R1qBr3/2b5/B1QN1RPq/N4Nnb/KBn2b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 c5 Kc2 Kc7 b4 f5 Kb2 h5 e4 a5 b6+ Kb7 b5 h3 e5 a4 d6 f3 d5 h2 e6 h4 e7 f4 e8B f2 d7 c4 d6 f3 Bh5 h3 Bg6 Rh5 Qd4 Nf6 Nc3 Nd5 Na2 Ne3 Qc3 Re5 Bb1 Qe8 d8R Nd7 Be2 f1Q g3 f2 Bd1 Ng2 Bb3 Qf7 Re8 Qg8 Re6 Bg7 Rf6 Bh8 Rf3 Qe1 Bf4 f1B Bc1 Kb8 b7 Nb6 d7 Qe3 d8N Qc5 Nc6+ Kc7 b8N Ba6 Ne7 Kb7 Nd7 Re8 Ng6 Qc8 Nb4 Qc5 Ra2 a3+ Ka1 Qc8 Rc2 a2 Ba3 Qc5 Nf6 Qc8 Ne2 Qc5 Rg1 h1Q Ne4 h2 Nc1 Qc8 Nbd3 Qc5 Qb4 c3 Nef2 Qc8 Nb2 Bc4 Nbd3 Qc5 Rf1 Qc8 Rf5 Qg1 Rh5 h1Q Rg5 Na4 b6 Qhh3 Rf5 Kb8 b7 Nb6 Rh5 Kc7 b8Q+ Kc6 Ng4 Qc5 Rf3 Bab5 Qd6+ Kb7 Qd8 Ba6 Ngf2 Bab5 Re2 c2 Qc3 Ba6 Re4 Bab5 Ref4 Ba6 Rf6 Bab5 Ne2 c1N Rc6 Ba6 Nb4 Bab5 Nef4 Bf1 Bd5 Bbe2 Kb2 Bc4 Nf4d3 a1B+ Kc2 Nb3 Na2 Bb2 Rhf5 Bc1 Rh5 Be3 Kb2 Nc1 Ka1 Bd4 Ng4 Bg1 Ngf2 Bb5 Rh4 Bh2 Ra4 Ba6 Ra5 Bc4
2N4q/B1bBbk2/3r2n1/Q1Nnb2r/RR1qb2n/n3QP1r/3KB3/2R1B2N w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 e5 g4 a5 d4 c5 d6 h5 b6 c4 d5 c3 b5 e3 f3 h3 b7 c2 d7+ Kf7 d6 h2 g5 h4 b6 h3 Bd2 c1B Ke2 e4 Ra3 a4 Ra2 a3 Qc2 Be7 Qc3 Rh5 Be1 Nc6 b8B Ne5 b7 Ra6 Nd2 Nf6 Ba7 Nd5 b8R Ng6 Nc4 Bb7 Nb6 Bd2 Qd3 Ba5 Nc8 Bc7 Qb3 Qh8 d8Q Qd4 d7 Rd6 Qc3 Ba8 Rb4 Bc6 Ra1 a2 Rc1 a1B Qc5 Bb8 Qda5 Bc7 Qc3 Bb2 Ra1 Ba8 Raa4 Bc6 Qd2 Bc3 Kd1 e2+ Kc1 e3 d8N+ Ke8 Nb7 Kf7 Nc5 Ba8 Bf2 e1N Ne2 Nc2 Be1 Na3 Ng3 e2 Qe3 Bb7 Rg1 Ba1 Nh1 Bc6 Bc3 e1N Be2 Ng2 Be1 N2h4 Rf1 Qe4 Kd2 Be5 Nf2 h1R Rg1 Rh2 Nh1 Rg2 Rf1 h2 Rg1 Rg3 Rf1 Ngf4 Rg1 Rh3 g6+ Kg8 g7 Kf7 Rf1 Nfg6 g8B+ Kg7 Bd3 Qd4 Be6 Kf6 Bd7 Kf7 Ng3 h1Q Rg1 Qf4 Be2 Qf6 Rf1 Qg1 Nh1 Qh8 Ba6 Qg4 Be2 Qd4+ Bd3 Nc3 Bf2 Nd5 Rc1 Nc3 Be1 Be4 Ne6 Qc4 Nc5 Nd5 Be2 Qd4+
BNB1q3/4qb2/1rN3Rb/n2q2bb/1qk1n3/2PNB1rR/3R1K2/r1Q3BQ w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 Kf7 b4 e5 g4 h5 b6 a5 f6 Ke6 f5+ Kd5 c3 d3 g5 e4 b5 e3 f7 h3 g6 e2 g7 a4 b7 a3 f6 h4 b6 a2 Bg5 h2 Qd2 h3 Kf2 e1B+ Kf3 Ra6 Qb2 d2 Ne2 d1B Qc1 Qe7 Nd2 Bh4 Be3 Nc6 b8B Bg5 b7 Rb6 Ne4 Kc4 Bg2 d5 Ba7 d4 b8N d3 Nc5 d2 Nd3 Na5 Kf2 Be6 Nd4 Bh5 Ba8 d1Q Ndc6 Qa4 Rb1 a1R Rb2 Qab4 Rd2 Bd5 Rg1 h1Q Rg2 Nh6 g8B h2 Rg1 Bg7 f8Q Nf5 Be6 Ng3 f7 B7h6 Bc8 Qhe4 Qe8 h1Q f8R Q4e5 Rf3 Bdf7 Rg2 Rh7 Qh8 Rg7 Qh7 Qe8 Rg1 Q5e7 Qh8 Nf5 Rh3 Nd6 Qh7 Qd5 Qe4+ Kb5 Qh1 Kc4 Rg2 Bf4 Rg6 Rg8 Rf6 Rg3 Rg6 Bfg5 Kf1 Qg8 Bg1 Qge8 Kf2 Ra6 Bd4 Rb6 Be3 Ne4+
4rR2/rQ1RqQ1b/1N1QnBBQ/Rr2n1b1/5k2/Pr1B4/2q1b3/K1b1N2n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 d4 Kf6 Kd2 b5 Kc2 e5 Kb2 c5 g4 h5 d6 b3 d5 c4 a3 e4 d7 e3 d6 h3 Nc3 e2 Qc2 e1Q Qe4 h4 Nge2 b4 Nd4 h2 Na4 h3 Qb7 Qee7 Nb6 Nc6 Bd3 Bh6 Nc2 Ne5 Ne1 Qc7 d8Q Bg5 d7 Ra7 Qe8 Nh6 d8Q Nhf7 Qd6+ Be6 Rb1 c3+ Ka1 c2 Bb2 Nd8 Rd1 c1B Qh5 Re8 Qh6+ Kf7 f6 Qc2 f5 Bc4 Rg1 h1B Rd2 h2 Bc3 Bh4 g5 Ne6 Rg3 Be4 g6+ Kg8 g7 Kf7 Rg5 h1N Rh5 Ba6 Qh7 Bg5 g8B+ Kf8 Bf7 b2+ Ka2 Bb5 Bg6 b1R+ Bb2 Ba6 Qh6+ Kg8 Bh7+ Kh8 f7 Bb5 f6 Ba6 Bg8+ Bh7 f8R Bb5 Bg6 Be2 f7 Be3 Qf4 Kg7 Qh6+ Kf6 Rd5 Bg5 Ra5 Qd1 Bd4 Rb3 Ka1 Qc2 Rh3 Rc3 Rd3 b3 Rd1 Rc5 Bd3+ Bg6 Bh7 Rb5 Qh2 Be4 Bg6 Bf5 Qh6 Be4 Bh5+ Kf5 Bg6+ Kf4 Qdd5 Nd7 Bf6 Ne5 Qd6 Bf5 Rg8 Be4 f8Q Bf5 Qf7 b2+ Ka2 Be4 Rf8 Rb3 Bh5 Bh7 Bhg6 Qc6 Rd2 b1R Rd1 R1b2+ Ka1 Qc2 Bdf5 Nc7 Qdc6 Rg3 Rd7 Rb5 Qd6 Rgb3 Bd3 Ne6
1R6/QN1qBq2/R1qr2QQ/bbN5/Q2Prr1N/2br2RB/2q2n1k/K2n4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 b4 a5 Kb2 c5 e4 f3 g4 a4 d6 Ke6 e5 c4 b6 c3+ Ka2 c2 b5 f4 d7 f2 g5 Kf5 b7 h3 b6 f3 g6 Kg4 g7 Kg3 e6 h4 e7 a3 e8Q h2 Qee2 h3 Bg5 c1Q Qed3 Nh6 g8Q Nf5 Qa4 Na6 b8R Bb4 b7 Nc5 Qd2 Ba5 Qc6 Rh4 Qc2 Ra6 Ra8 Nd3 b8N Ne3 Q6a4 Re4 Qf8 Rd6 Qh8 Nd1 Nd2 Ba6 Nb3 Bb5 Qh6 Qc8 d8Q Qd7 Bg2 f1R Nc6 f2 Nf3 Qd2 Rg1 h1R Rb8 h2 Nc5 Qe2 Kb3 a2 Qe7 Qd2 Nd8 Qc1 Rb1 a1B Ka2 B1c3 Nh4 Qd2 Rb2 Qe2 Ka1 Qd2 Qb1 Qc2 Bf3+ Kh3 Rg4 Rhg1 Ndb7 h1Q Bg2+ Kh2 Bh3 Rg3 Qeh7 Rf3 Be7 Rff4 Rg6 Rg1 Rg3 f1Q Qba2 N3f2 Q7g6 Qc4 Ra8 Qf7 Ra6 Qg2 Qd5 Rh1 Qc6 Rhe1 Qb6 R1e3 Qa7 Rd3 Qgg7 Re5 Nd8 Bc4 Qgf6 Qgc6 Qfg6 Bcb4 Rb3 Ree4 Rb1 Bd2 Rb8 Bb5 Ndb7 Bdc3#
1b2r3/1N3bq1/B2R1b2/1Q1P3n/KBRrkn1r/2R1q2N/BB3rb1/N3Qn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 g4 f5 e4 c5 b6 c4+ Ka3 c3 b4 h3 b7 h2 b5 h4 g5 h3 g6 c2 g7 a4 b6 f3 Bg2 f2 Qf1 f4 Qa6 f1N Qb5 f3 Bb2 c1Q Nd2 f2 Nb3 Nd7 b8B+ Qdc7 b7 Ne7 g8B Qe3 Rc1 Ng6 Rc3 Rh4 Na1 Nf4 Bf3 Bh6 Be2 Nf6 Be6 N6h5 e5+ Ke7 Kb4 a3 Bd3 a2 d6+ Kd8 d7 Ke7 d8N Qd7 Nc2 a1B Ba2 Rg4 e6 Kf6 d5 Qg7 e7 Be6 e8Q Bf7 Be2 Kf5 Bd6 Rc8 Be7 Ke4 b8R Bg5 Ka5 Bf6 Rb6 Be5 Rf6 Bb8 Nb7 Rd8 Ka4 Rh4 Qed7 Re8 Bb4 Rg4 Rd6 Rh4 Nf3 Rg4 Rg1 h1B Qc8 Rh4 Rg4 h2 Ng1 Bg2 Nh3 h1R Qcc5 Nd2 Qa5 f1R Ba6 Rf2 Qcb5 Rd1 Qc7 Kf3 Qe7 Nf1 Qe5 Rd4 Qe6 Qd3 Qe1 Qe3 Ba3 Bb2 Na1 Bc1 Bb2 Ke4 Rc4 Bd2 Rg3 Bc3 Bc5 Ba5 Bb4 Bd8 Rf3 Bf6 Rg3 Qe2 Rgc3 Qe3
n4b1Q/kN2BbN1/r4nb1/2Pr2n1/K2NQbq1/R1R1q3/2B4B/1RrN3n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 Kd7 g4 Kc7 c4 Kb7 Kc2 e5 Kb3 a5 c5 h5 g5 d3 g6 h3 b6 a4+ Kb4 d2 g7 e4 f6 e3 f5 a3 f7 d4 f6 h4 Ne2 a2 Qa4 d1Q Nbc3 d3 Nd4 d2 Bd3 h2 Bc2 Qg4 Nd1 e2 Qc6+ Ka6 b7+ Ka7 Qe4 e1N Ka4 h3 b4 Bf5 b5 Na6 b8N Nf3 Re1 h1N Re3 h2 Rc3 Bg6 Nbc6+ Kb7 b6 Qe7 Rb1 a1B Na5+ Kb8 b7 Ka7 b8R Nc7 R8b2 Rh5 Ra2 Rd5 Nb7 Ng5 Raa3 Qe5 Bb2 Qeg3 Bc1 Qe3 Bb2 Rc8 Bc1 Na8 Bb2 Rc6 Bc1 Bd6 f8N Bf4 f7 Nf6 g8Q Bb2 Nfe6 Ra6+ Kb3 Ba1 f8B Bb2 Be7 Ba1 Nf2 d1B Qh8 Be2 Kb4 Bc4 Ng7 Bb2 Bd2 Bc1 Nd1 Bd6 Bd8 Bf8 Bc7 Rd6 Bd8 Bcf7 Be7 Rd5 Kb5 Qeg3 Be1 Bf4 Bf2 Qe3 Bg3 Nf2 Kb4 h1R Bh2 Re1 Na5 Nh1 Ka4 Rc6 Nb7 Re6 Nf2 Rc1 Nd1 Ra6+
2N1br2/1qB4Q/k1n3BP/3K1R1n/q2R1B1N/3nb3/1brB2n1/N2Q1Qrr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 Kc7 h4 Kb6 h5 g5 h6 a5 e5 a4 d6 c4 d7 c3 d5 f3 Ke3 a3 Kd4 g3 e6 c2 e7 a2 e8N f4 d6 g2 Rh4 g4 Kd5 g3 Nd2 f2 Nb3 f3 Rd4 Nc6 Bd2 c1N Bd3 f1R Bg6 f2 Nf3 g1R Nh4 Qc7 d8B g2 d7 Nd3 Nd6 Bg7 Qe1 Ka7 b6+ Ka6 b7 Rb8 Rc1 a1Q Rc5 Qa4 Na1 Ra8 b8B Qb7 Bdc7 Nf6+ Ke6 Rh7 Rf5 Nh5 Kd5 Bh8 d8Q Bd7 Qde7 Be8 Qd1 Rf7 Qee1 Rf8 Nc8 Rh1 Bcf4 Rfg1 Bbc7 f1N Qe7 Rb8 Qh7 Bg7 Ne7 Rc8 b5+ Ka7 b6+ Ka6 Rb4 Bb2 Rd4 Qa8 b7 Ne3+ Kd6 Qa7 b8Q Qb7 Ke6 Re1 Kd6 g1B Ke6 Ng2+ Kd5 Be3 Qa7+ Kb5 Qc5+ Ka6 Qcc1 Reg1 Qf1 Ra8 Qcd1 Rd8+ Bcd6 Rd7 Nc8 Re7 Bc7 Re5+ Kd6 Rc5 Ke6 Rc1 Kd5 Rc2
Q1n1B3/1bb1N2N/2Q1PQnk/B5Rq/B4b2/bK2B3/2q1nR1R/2r1rqq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 Kg7 g4 h5 b6 a4 g5 f3 g6 a3 e5 f4 e6 f2 b5 c4 b7 h3 d6 h2 d7 a2 b6 h4 d5 f3 d6 h3 Be2 f1N Qc2 f2 Nf3 Qc7 d8Q Ng3 d7 f1Q Be3 Nc6 b8Q Ba3 b7 Na7 Ng5 Ne7 Bd1 Kh6 g7 Ng6 g8B Qc5 Rg1 h1Q Qf6 h2 d8B Qcc6 Rg2 Qhg1 Rf2 h1Q Bf7 Qh5 Be8 Qe4 Ba5 Ne2+ Kd2 Rh7 Nc3 Rc7 Nd5 Qf5 Rc1 a1B Ne7 Be5 Nh7+ Bf4 Qe4 c3+ Kc2 Rc4 Kb3 c2 Ra1 c1B Qc6 Bd2 Rh2 Rc1 Ra2 Bdb4 Rd2 Bd6 Rd5 Qe4 Rg5 Bc7 Rf2 Nb5 Qa7 Nd6 b8R Bb7 Rd8 Nc8 Rd2 Qeg2 Qb8 Ra6 Qa8 Ra7 Ka2 Ra6 Ba4 Rb6 Rc2 Rbb1 Rb2 Re1 Kb3 Rbc1 Ra2 Qe4 Rh2 Nc3 Rag2 Ne2 Rf2 Qc2+
4b1q1/3R1N2/2QQP3/K3N1b1/1RBn2n1/1Q2rnr1/r1rn2B1/BBqkbR2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 c4 d5 g4 h5 g6 a5 c5 f5 g5 a4 c6 f3 b6 Kf4 b7 f2 e5 h4 c7 h3 e6 a3 g7 d3 Kc3+ d2 g6 Ke3 b5 a2 b6 d4+ Kc4 d3 Kb5 f4 Qg4 f3 Ba3 d1R Nc3 Kd2 Bd6 h2 Rc1 a1B Be7 Nh6 g8Q Ra3 g7 Nc6 b8Q Re1 b7 Bd7 c8B Be8 Qbf4+ Re3 Qh3 Ng4 Bg2 f1N b8R f2 Bf6 Be7 Qd6 Nd4+ Kb4 Rh5 Nb5 Rc5 Ba6 Rc2 Nf3+ Ke2 Rd1 d2 Rg1 h1Q Ne5 Nfh2 Rgf1 Nhf3 Rb6 Rab3+ Ka5 Rbb2 Qf7 Qb8 g8B Qa8 Bg7 Bg5 Qb7 Qb8 Qbc6 Qg1 Rb1 d1R Rb7 Rdd3 Bh7 Kd2 Rd7 Qh1 Rfc1 f1N Bg6 Ke2 Bh8 N1d2 Rf1 Qa8 Rc7 Rbb3 Qh7 Rc5 Re7 Bf7 Qb7 Nc2 Qdd5 Ng1 Bf6 Rf3 Nc4 Ne4 Qbc6 Qg8 Qh2 Rde3 Rfd1 Be8 Rd7 Rb4 Bh7 Bc3 Qg3 Bd2 Ba1 Nd4 Qgc7 Rg3 Ne5 Rcc4 Nd6 Ngf3 Ndf7 Qe1 Q7d6 Bc3 Rd3 Qc1 Rd1 Bd2 Rg1 Be1 Rf1 Kd1 Rb2 Ned2 Bb1 Rc2 Qa2 Rb7 Bc4 Rc7 Rb8 Rb7 Qaa4 Rbb3 Rb4 Rbb2 Qb3 Ra2+
2N1q3/Qbr3R1/qr2PnQB/1n1q2rN/1k1NB2b/rq1QK3/8/RB1b3B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 g4 Kd6 e4 Kc5 c4 h5 b6 d5 b3 f5 b7 a5 e5 a4 e6 h4 g6 f3 g7 a3 g5 f4 g6 d3 Qe2 d4 Qe3 d2 Nh3 d1Q Rg1 a2 Qd3 Kb4 c5 Ra3 c6 Qe8 c7 Nc6 b8Q+ Bb7 c8N Na7 Nd2 Rh5 Bg2 Be7 Bh1 Nb5 Qa7 Nf6 g8B Rg5 g7 Ra6 Bh7 Rb6 Qg6 d3 g8B Qc2 Qh5 Qc3 Be4 Qc4 Qg6 Qd5 Rb1 a1R Bh7 Ra3 Ra1 Qc4 Nb1 d2 Nc3 d1B Ne2 Qd3 Nd4 Qc3 Bb1 Bd8 Qd3 Qc4 Be4 Qd5 Ke1 f2+ Kd2 f3 Ke3 f1R Nf4 h3 Nh5 f2 Rg4 h2 Rg2 Ba6 Qh7 Rg1 Qg6 f1Q Rg4 Bb7 Rg2 Ka5 b4+ Ka4 Rg3 Qb3 Rg4 Rc5 Rg3 Rc7 Rg2 Nc3 b5 Kb4 Rg5 Ng8 Rg2 Bh4 Rg4 Nf6 Rg2 Rba6 b6 Nb5 Rg3 Bd5 b7 Rb6 b8Q Bb7 Qa7 Rg2 Qh6 Rg1 Rg7 Rg5 Bhf3 h1Q Qg6 Qh2 Bg2 Qd6 Bh1 Qf5 Beg2 Qfd5 Be4 Rg3+ Kf2 Q6c6 Bh6 Rg5+ Ke3 Rba6 Bef3 Qb6 Bfg2 Qa5 Bf3 Rb6 Be4 Qa6
2BB2r1/4Rr2/1nPR3r/Bq2Qq2/b3N1kb/1r1Q1b1N/K2NNb2/R3nq2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 Kf6 f4 a5 g4 d5 c4 e5 Kc2 h5 Kb2 h3 b6 h2 c5 d3 c6 d4 b5 e4 b7 a4 b6 a3+ Ka2 d2 Bb2 h4 Bc4 e3 Bd5 h3 Qc2 d1Q Nc3 d3 Qb1 d2 Qd3 e2 Nf3 e1B Be6 Nd7 b8R Rh6 b7 Qb6 Ne2+ Ne5 Bc3 Qb5 Ba5 Bf2 Re1 h1Q Bd8+ Ne7 g5+ Kg7 g6 Kf6 g7 h2 Ba5 Nd5 Bd7 Be7 g8N+ Kf7 f6 Nb6 Bh3 Bg4 f5 Qf1 Rd8 h1R b8Q Rg1 Qc7 Ra7 Rd6 Qda4 Qb8 d1B Nd2 Bf3 Bg4 Qf4 Qc7 Kf8 f7 Kg7 f8N Ba4 f6+ Kf7 Bh3 Qf5 Ne6 Kg6 f7 Kh5 f8B Beh4 Ng5 Rg2 Qb8 Rf7 Be7 Rg4 Qc7 Rb4 Bd8 Rb3 Qe3 Nd3 Nf6+ Kg6 Nfe4+ Kh5 Reb1 Ne1 Qd3 Qf6 Bc8 Qff5 Rb2 Kg4 Nh3 Rf8 Kb1 Rfh8 Qe7 Rg8 Qe5 a2+ Kc1 Nd5 Qe3 Qa6 Bc3 Rb8 Rb7 Bc2 Rab1 a1R Kb2 Ra3 Q3d4 Ba4 Bca5 Rb3+ Ka2 Nb6 Ra1 Qb5 Rf7 Rb7 Qd3 Re7 Rh7 Ree6 Rc7 Ref6 Re7 Rf7
bBQbQ1R1/2Nq1N1B/qP3q2/k5r1/2bN4/4nBq1/1n1K1b1r/1n1B1R1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 d4 h5 g4 c5 e4 Kc7 d6+ Kb6 d7 a5 g5 f5 g6 f3 e5 f2+ Ke2 h3 e6 h2 e7 c4 e8B a4 g7 c3 d5 h4 d6 h3 Bh5 a3 Bb2 f4 Qe1 f3+ Kd1 a2 Kc2 Nc6 Nd2 Ne5 Qc1 Nd3 Nb1 Ra5 Kd1 c2+ Kd2 Nf6 g8B Ng4 Bh7 Ba6 Na3 Be7 Bf5 Ne3 Bc3 Nb2 Be2 f1Q Bd1 f2 Bhf3 Qg8 d8R Qg3 Rg8 Bd8 Rb1 a1Q d7 Qc4 Ne2 Rh5 Rg1 h1Q Nd4 h2 Bh7 Qhg2 Re1 Q2h3 Rf1 Qc6 Rh1 Qf6 Rf1 Qa2 Ra1 h1B Rb1 Be7 d8N Qd7 Nf7 Rh2 Ra1 Bd8 Rb1 Bb7 Ra1 Bd5 Rb1 Kb7 b6 Ka6 b7 Bc4 b8Q Rg5 Nb5 Bg2 Qa8+ Kb6 Nc7 Qa6 b5 Bh1 Bb4 Bg2 Bc5+ Ka5 Ba7 Bh1 b6 Bg2 Rh1 f1N+ Kc3 Nd2 Rf1 Bh1 Bb8 Bg2 Qe4 Bh1 Qe8 Bg2 Bfe2 Ba8 Bf3 Nb3 Qd2 c1B Qc2 Nd2 Qf5+ Qd5 Qc8 Qd7 Ba4 Ng2 Ra1 Nb1+ Kc2 Be3 Rh1 Nd2 Raf1 Bf2 Kc1 Nb1 Bad1 Nc3 Kc2 Ne3+ Kd2 Nb1+
b2Bb1n1/N2B1P2/k4nQ1/1qQQ2Rr/N1nRr1B1/2qN2q1/bq6/2b1B1K1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 b4 c5 f4 Kc7 Kf2 Kb7 g5 h5 g6 e5 g7 a4 b6 a3 b5 h3 f5 h4 d6 a2 d7 h2 d5 h3 d6 c4 f6 c3 f7 c2 Qd3 Rh5 Nf3 Qg5 d8B Bd7 Be2 Be8 d7 Ba3 Rg1 h1B Nc3 h2 Bd2 c1N Na4 Nb3 Ne1 Na5 Bg4 Nc4 Rd1 a1Q Qb1 Bb2 Nd3 Bc1 Be1 e3+ Kf1 e4 Qc2 Nd6 Qc5 e2+ Kf2 Qb2 Rg3 Ne7 g8B Nc4 Bh7 Ng8 Bhf5 Bf3 Be6 h1B Kg1 e3 Rg2 Bd5 Rd2 Nc6 Rg3 Nb4 Rg2 Kb8 b7 Ra6 Bef5 Re6 Rd1 Re4 Rg3 Nb6 Rd2 Ka7 b8N Kb7 Nc6 Nc4 b6 Ka6 b7 Be6 b8Q Nd5 Na7 Ndf6 Rd1 Bd5 Be6 Qge5 Rg2 Qb5 Rg3 Qeb2 Qf4 Ba8 Qh6 Bg2 Qg6 Bf1 Bc3 e1Q Rg2 Qh4 Be1 e2 Nf4 Nb6 Bb4 e1Q Rd4 Qec3 Be2 Qbb3 Bc7 Qhe1 d8Q Qh4 Rg5 Qcb2 Be1 Bh3 Nd3 Q3c3 Qdd6 Bg4 Bd7 Be6 Bg4 Ba2 Qdd5 Nc4 Bd8 Qg3+
Knn1Q3/qnqP4/5bQ1/2NBRr1q/2qBR1R1/kr6/1n3NQ1/4QbBb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 d4 h5 g4 a5 b6 c5 d6 f3 d5 f2 b7 h3 d7 h2 b5 Kb4 g5 h4 g6 h3 b6 a4 g7 c4 d6 f5+ Kd5 a3 e4 f4 e5 c3 e6 f3 e7 c2 e8Q a2 Qg6 Be7 Nd2 Qc7 d8R Bf6 d7 Ra3 Ne4 Rb3 Bb2 c1N Nc5 Nd3 Bd4 Nb2 Qe1+ Ka3 Bg2 f1B Re8 f2 Re5 Rh5 Rc1 a1Q Rc4 Qb1 Be4 Rf5 Rb4 Nh6 g8Q Nf7 Qg2 Nd6 Q8g6 Na6 b8B Nb7 Ba7 Nb8 Qg8 Qd1 Q8g6 Qh5 Ne2 Qh6 Rg1 h1Q Nc3 h2 Nd1 Qh5 Q2g5 Q1f3 Qg2 h1N Rc4 Qe3 Bf3 Na5 b7 Ng3 Rb4 Ne4 Rc4 Na6 b8Q Nb7 Rb4 Ned6 Be4 Qa5 Kc6 Qc3 Bb6 Qc1 Qa8 Nb8+ Kc7 Qf4 Bd5 Qa4 Re6 Rc3 Be5 Be2 Qh3 Qa5 Qh1 Nc6 Bf3 f1Q Nd3 Nbd8 Rg4 Qa6 Bg1 Rb3 N1f2 Bb7 Nc5 Bb5 Qc8 Nb8 Rd4 Be4 Rd5 Qe2 Bd4 Qg3 Re7 Qc2 Re6 Bf1 Bg2 Qcc4 Qh3 N8b7 Qce8 Nc6 Bh1 Qh2 Qg3 Nc8 Re7 Nb4 Kb8 Qb6 Ka8 Nc6 Qh3 Bf3 Re2 Qd6 Rde5 Qdc7 Qg3 Nb8 R2e3 Bd1 Bd5 Bf3 R3e4 Bh1 Qg2 Qa7#
kb6/q1B5/b2N2Q1/R3nnK1/Bb1nr1Q1/1Pb3b1/r2bNQ2/RnR2NN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 c5 h4 Kc7 d4 Kb7 b3 f5 h5 a5 h6 g5 d6 f3 Ke3 f4+ Kd2 a4 h7 g3 e5 f2 d5 a3 e6 f3 Ke3 c4 d7 g4 Kf4 a2 d6 g2 e7 c3 e8N g3 b6 c2 Nd2 Nh6 Bb2 c1B Bc3 Ng4 Kf5 Qe7 Rb1 a1B Kf4 Ne5 d8R Ra2 d7 Nbc6 Nd6+ Ka8 Ba5 Nd4 Bb5 f1N Ba4 f2 Qg4 Bc3 Ra1 Ne3 Nf1 B1d2 Rh5 Rg8 h8N Rg5 Ng6 Nef5+ Ne3 f1N b7+ Ka7 Rh1 Rh5 Bc7 Rh4 Re8 Qh7 d8Q Qf7 Ne4 Bfb4 Kg5 Qh7 Nf4 Qd7 Nf3 g1B Nd6 g2 Qf6 Bf2 Qg6 g1B Ne2 Bh2 Nfg1 Bfg3 Rh8 Qf7 Rh5 Qh7 Qf3 Re4 Qf2 Be1 Rc1 Nd2 Nf1 Nb1 b8Q+ Ka6 Bb6 Qa7 Bc7 Bb7 Qbg8 Bc8 Ne8+ Kb7 Nd6+ Ka8 Q8e6 Ba6 Qd7 Ne3 Qg4 Bed2 Kf6 N5c4 Ra5 Ne5 Kg5 Nef5+ Ne3 Ra1 Nb5 Qb6 Rc2 Ra2 Nf3 Nec6 Bb8 Na3 Ra1 Bgd6 Nfg1 Bhg3 Rcc1 Bc7 Nd6 Ne5 Nf3 Nb1 Nfg1 Rf4 Nf1 Qb7 Ba7 Bb8 Bb6 Qa7 Bc7 Re4+
1bR1QQ1K/N1B1R1Nb/2qQn3/r3n1kP/3brr2/5Q1n/1rnN3R/1B4b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 h4 a5 d4 c5 b4 g5 h5 c4 b6 f3 Kg3 c3 b5 a4 d6 a3 d7 f2 b7 a2 d5 c2 d6 Nc6 b8N Nge7 b6 Nd4 b7 Ne6 Be2 f1N+ Kg2 g3 Kh3 g2 Kg4 Ra5 Nd2 Ng6 Nh3 g1N Nc6 Qc7 Na7 Qc6 Nf4 Nh3 b8Q Bg7 d8R Re8 Rb1 a1B d7 Bd4 Rh2 Be5 Qa8 Bb8 Rb7 Bh8 Ba3 c1R Bd6 Rb1 Bc7 Rb2 Bd3 Bg7 Qf3 Ne3+ Kg3 g4 e5+ Kg5 Bb1 Re7 Rh8 f5 d8Q Nc2 Qd6 Bd7 Rc8 Be8 Nd5 Bf7 Nf6 Bg8 Ne8 Bh8 Ng7 Bh7 Bb6 Re8 Rd7 Re7 Bc7 Re8 Re7 f4+ Kg2 Ned4 e6 g3 Rf7 Ne5 e7 Rg8 e8Q Ne6 Re7 Rf8 Kf1 g2+ Ke2 Rf5 Qf8 g1B Qe8 Ng6 Kd3 Rfe5 Nf5 Bf6 Ng7 Re4 Qf8 Qb6 Qac6 Bfd4 Kc4 Qa6+ Qb5+ Ne5+ Kd5 Nc5 Qbe8 Qb6 Qa3 f3 Qb3 f2 Qbf3 Ncd3+ Ke6 f1R Rd7 Qc6 Re7 Ng4+ Kf7 Nc5 Qg8 Ne6 Qgf8 Bf5 Kg8 Ne5 Kh8 Bh7 Qb3 Rf7 Qf3 Rff4
1b2QqN1/1Bq1n1q1/3rb1RB/2K4k/Q2Rb3/2R2P2/N1npr1r1/NQ3R1n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 d5 b4 h5 c4 a5 g4 e5 f6 Kg6 g5 a4 c5 h3 f7 h4 c6 h2 b6 a3 b5 h3 c7 a2 b7 Rh6 b6 Na6 b8R Be6 c8R Qc7 b7 Ne7 Nf3 Kh5 Rg1 h1B g6 h2 g7 e4+ Ke2 d3+ Ke3 d2 Kd4 e3 g8N e2 Rg6 e1R Bg2 Re2 Nc3 Ra7 Qa4 d1Q+ Nd2 Qf1 Nb3 Nb4 Rb1 Ra6 Na1 Rd6 Rd8 Rh7 Rbc8 Rg7 Be4 Bf3 b8Q h1N Bh6 Bg2 Qbb5 Bf3 Qd3 Bg2 Rd1 Bf3 Qb1 Nc2+ Kd3 d4 Bb7 Qh3 Rf1 Qf5+ Ne4 Qfc5 Nc3 Bc6 f3 Bcd5 Rf6 Rgg2 Rg6 Bg7 f8Q Be5 Qfe8 Bf4 Nb3 a1Q Na2 Qb2 Na1 Bg3 Ba6 Ba8 Bb7 Qf5+ Be4 Qf8 Bd5 Bc6 Kc4 d3 Kc5 d2 Rd7 Qbg7 Rdd8 Bb5+ Bc6 Bd3 Rd7 Qd8 Bb7 Be4 Rcc7 Ra6 Rc6 Bb8 Rd3 Rb6 Rc3 Ra6 Rd6 Rb6 Rdd3 Rd6 Rd4 Qc7+
2B2r1r/B2Rr1b1/RnbN4/2bk4/1Q5R/R2pBn2/1PQ1q1KQ/1nNq1q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 e4 Kd6 c4 a5 h4 f5 h6 g5 b6 g4 b7 a4 h7 a3 h5 f3 h6 f4 Nc3 g3+ Ke1 g2 Kf2 d3 Qd2 a2 Rh3 Qe8 Nge2 Nc6 b8B+ Kc5 e5 d5 e6 d4 e7 Nf6 Rh4 Bg7 Nb5 Ne5 Nd6 Nfd7 Ba7+ Nb6 Qb4+ Kc6 c5 d2 Rh3 d1Q Be3 Kd5 c6 Bd7 c7 Bc6 c8Q d3 Rh4 Rf8 h8R Qh5 Kg1 f2+ Kh2 g1B+ Kg2 Nf3 e8R Rb8 h7 Rb7 Re4 Re7 Nc1 Qe8 Be2 f1N Re6 N1d2 Rg8 Nb1 h8Q Bb5 Qc2 Bc6 Bd2 Bc5 Be3 Nh2 Bg4 f3+ Kh3 f2 Kg2 Nf3 Reh6 Qh5 Bc8 Rff7 Rd8 Rf8 Rd7 Qe5 Bf4 Qee2 Be3 Na3 Rb1 a1R Rf6 Ra2 Ra1 Nb1 Qh6 Rh8 Qhf4 Ra3 Qh2 Rc3 Ra6 Rc4 Re6 Rf4 Re4 Rff8 Rc4 Rh5 Rc3 Rhh8 Rca3 f1Q+
1r1R1KQ1/rkBb4/Nb3R2/1q3Bn1/Q5Pq/b3p2n/r2Qq1NB/nR1B4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 Kh5 a5 f4 e5 g4 a4 b4 a3 c4 e4 b6+ Kb7 c5 h6 Kg6 h5 Kf7 d3 f6 h3 f5 d4 b5 d2 Nf3 d3 Be2 h4 Rf1 h2 Qa4 d1N Bf4 h1R Ne1 h3 Nd2 a2 Ng2 e3 Bc7 h2 Ne4 d2 Rb1 Nf2 Bd1 Ra7 c6+ Ka8 Nc5 a1B Na6 Nh3 Rf3 Qd3 Ke8 Be5 f7 Ba3 f8R Nd7 f6 Bd4 f7 Nh6 Rf6 Nc5 Ke7 Rf1 Rd8 h1Q f8Q Rf2 Qg8 Nf7 Kf8 Nfg5 Bh2 Qe1 c7 Qdf1 Ke7 Kb7 Kf8 Bd7 c8B+ Ka8 Bc7 Re2 Bh2 Qh4 Bc7 Bc1 Bh2 Nb3 Bc7 Na1 Bh2 Rc7 b7+ Ka7 b8B+ Ka8 b6 Ba3+ Kg7 Ra7 Bbc7 Rf2 Qa2 Qb5 Qg8 Be8 Bf5+ Kb7 Qa2 Bd7 Qb2 Ra8 Qbb4 Rh7+ Kf8 Rb8 Bb3 d1Q Qd6 Qh1 Bd1 Ra2 Qdb4 Re7 Qe1 Qhf1 Qd2 Ka8 b7+ Ka7 Rg6 Bb6 Rf6 Qfe2 Qdd4 Qb4 Qe5 Ra8 Rg6 Bd4 Ba5 Bb5 Qd6 Rc7 Rf6 Bd7 Kg7 Bc5 Qd2 Rcc8 Bac7 Qb2 Bcd6 Kb6 Kf8 Ra7 Qc4 Qb4 Qg8 Kc6 b8Q Qa4 Qbb3 Rb8 Qbb4 Bb6 Bdg3+ Kb7 Bc7 Bb2 Qbc4 Qb5 Qa4 Ba3+
5n2/b1NrNRR1/qn1B3B/QrR1q3/P2kB1QK/2Nbn1b1/1R3p2/2q1r3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 c5 h4 g5 a4 f5 h6 b5 h5 b3 h7 b4 h6 f3 Kg3 f4+ Kf2 g4 Bd2 b2 Ra2 b3 Rh5 c4 Nc3 b1R Bd3 b2 Nge2 Ra5 Ng3 Qe7 Rf5 Qc7 Rf7 Nf6 Bc2 Rg8 h8B Nbd7 h7 Nb6 Bg7 Qb7 h8R Bf5 Rh5 Rb5 Bh6 Nfd7 Be1 Rg7 e5+ Kc7 e6 Kd6 e7 Qa6 e8R Bd3 Ree7 Rc1 Rhe5 b1Q Rb2 Qa1 Rg5 Rb1 Ree5 Rh7 Rgg7 Be7 Bd2 Nf8 Qg1 Re1 Nf5+ Kd7 d6 Kc6 d7 Bd6 d5+ Kc5 Ne7 Kd4 d8Q Bb8 Nb1 c3 d6 Bc7 d7 Bb8 Bd1 c2 Bb4 c1Q Rc5 Bc7 Nc3 Bb8 Qf1 Ba7 Bc2 g3+ Kg1 f2+ Kg2 f3+ Kh3 g2 Qe2 f1N Kh4 f2 Qg4+ Qf4 Qa8 g1B d8N Qc1 Bb1 Bh2 Ne6+ Ke3 Nc7 Kd4 Ba3 Ne3 Bb4 Bc4 Be4 Bd3 Rcf5 Qe5 Bd6 Qe6 Rc5 Qe5 Qd8 Bg3+ Kh3 Qg5 Qa8 Qb7 Rf6 Bh2 Ng8 Qf5 Re7 Bb8 Kh4 Qe5 Qa5 Qa6 Rg6 Rf7 Rg7 Ba7 Rd7 Rf6 Rde7 Re6 Ref7 Re7 Rg6 Rd7 Ne7 Bf4 Rgg7 Bg3+
4r1b1/1b3rN1/B1n3BR/pnR2q2/kb2QqrK/nqP3B1/NQ2B3/R2Q4 w - - 0 1 illegal: No possible last move, all moves rejected
3r2br/1q1q4/1Q1P2Bn/RRBr1QNb/N6k/qQ2p3/1nBNN3/1Kb1n3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 b4 Kf6 g4 a5 d4 h5 Kd2 e5 Kc2 c5 g5+ Kf5 b6 c4 b7 c3 g6 h3 b5 a4 g7 h2 b6 a3 Be3 a2 Bd3 h4 Nd2 Nd7 b8Q h3 b7 Nh6 g8B Nb6 Bf7 Ba3 Bg6+ Kf6 f5 Na4 Qd6+ Be6 b8N Qe7 Qd7 Bg8 Na6 Qe6 Rb1 a1Q Nc5 Re8 Bf2 Kg5 f6 Qf7 Be3+ Kh4 Qf5 Qe6 f7 Qc8 Kb3 c2 f8N c1Q Nh7 Qcb2+ Kc4 Qe6 Ng5 Qb7 Rb4 Rb8 Qb1 Ra8 Rb5 Qec6 Kb3 Rb8 Kc2 Bb2 Ra5 Qa3 Ne2 Rf8 Rc1 h1B Ng1 Bf3 Qa2 Bg4 Kb1 Bh5 Qb3 Rc8 Rc3 Bc1 Bc2 Nb2 Na4 Rb8 Rcc5 Qcc8 Nf1 h2 Rcb5 h1R d6 Rh3 d7 Qd8 Bf4 Rd3 d5 Qde7 d8Q Qed7 d6 Rd5 Qc7 Rd8 Bd2 e3 Bc3 e2 Qb6 e1N Bd4 e4 Nd2 e3 Ne2 Be6 Bc5 Bg8
2QR2n1/1qB2B2/1qP1N1rr/2N5/bb2nR2/kb4R1/n1Q1pB1N/qB1rK3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 Kd7 f4 Kd6 b4 e5 f6 h5 b6 a5 b5 Kc5 f5 Kb4 b7 a4 b6 a3 f7 d3 c5 e4 f6 a2 g5 e3 g6 d2+ Ke2 d4 g7 h3 Rh2 h4 Nc3 Nc6 b8R Bd7 b7 Qb6 Qc2 d1R Rd8 Rd2+ Ke1 d3 b8B Rh6 Nf3 Ra6 Rf2 h2 Ne4 h1N Nh2 h3 Rf4 Ng3 Bc7 e2 Bg2 Be7 f8N Be6 f7 Bb3 Rb1 a1Q Ne6 Bd6 Rb2 Ka3 f8Q Nb4 Qe8 Na2 Qf8 Ne7 g8B Rg6 Bf7 Ng8 Qe8 Be7 Qd7 Rh6 Qc8 Ba4 Nf1 h2 Bh3 h1Q Bf5 Qf3 Nh2 Bd6 Nf2 Qfb7 Ne4 Ra5 c6 Bb4 Bh7 Rg5 N4c5 Rgg6 Kf2 Rd1 Be3 Rd2 Rb1 Ne4+ Ke1 Bb3 Bf2 Rg4 Bg1 Nec3 Kf2 Rd1 Bf5 d2 Qd3 Rgg6 Rc1 Nd5 Rc3 Ndf6 Qc4 Qb8 Bb1 Q8b7 Rg3 Ne4+ Ke3 Rc1 Bf2 Rc2 Kd3 Ba4 Ke3 d1B Kd3 Rc1 Ke3 Bdb3 Qc2 Rd1 Bg1 Nd6 Kf2 Rd2 Ke1 Ne4 Bf2 Rd1+
4B1Kn/1BB5/np6/2P1Q1qN/1nN1b1q1/rrQ1RQR1/kb2B2q/N3br2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 h5 Kd5 d3 g4 e4 a4 b6 f4 e3 c4 d6 a5 e2 a6 e1B a7 b3 c5 d2 f6 h4 f5 b2 g6+ Ke8 f7+ Ke7 g5 h3 g7 h2 f6+ Kd7 g6 Nh6 g8B Qe8 g7 Kc7 Qh5 d1R+ Nd2 b1N Nf3 Qe3 Be2 Bf5 Ne5 Na3 Nc4 Be4+ Ke6 Kc6 Rg1 Kb5 Qe5 Ka4 Rg3 h1Q Nb3 Qg5 Bf4 d5 Ra2 d4 Na1 Be7 f8Q d3 Bf7 d2 g8N Qh2 Qg7 Na6 Be8+ Kb4 f7 Bf6 f8Q Nc2 Re3 Nf7 Raa3 Rh3 Qh8 Bg7 Nf6 Rf3 Qh3 Nh8 Nh5 Rf1 Rg3 Rb1 Rae3 d1Q Qf7 Rb3 Qb7 Ng6 Kf7 Nh8+ Kg8 Qd7 Qbd5 Qdg4 Qd3 Rd8 Qd1 Rdd3 a8B Ra3 Bb7 Rdb3 Qc7 Be5+ Qg7 Bb2 Bc7 Ng6 Qe5 Nh8+ Bg6 Ka4 Qd2 Ncb4 Qg2 Rc3 Qf3 Rd3 Qdc3 Rb3 Na5 Ka3 Nc4+ Ka2 Kf8 Bf5 Be8 Bg6 Kg8 Be4+ Qg7 Ra3 Qe5 Rdb3 Qc3 Bg6 Qge5 Be4+
1qbrb2k/1QbR2RP/1qn1K1B1/prB1q3/2r2Nn1/7Q/2N4R/RN2Q2n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 g5 b4 c5 h4 a5 e4 f5 d4 Kf7 b6 Kg7 h5 g3+ Kf3 c4 b7 g2 b5 c3 e5 c2 d6 Kh7 h6 Be6 d5 Nc6 b8Q Qe8 b6 Qd8 d7 Nf6 b7 Ng4 Be3 c1R d6 Rc4 Nh3 g1Q Qe1 Qh2 Qc8 Rb8 Bc5 Bf7 e6 Be8 e7 Qb2 Qe3 Qe5 Rh2 Rg8 Bg2 Kh8 h7 Qb6 d8N Qb5 Ke2 f3+ Kd3 f4 d7 f2 Be4 f1N Ne6 f3 d8R f2 Nd4 Ng3 Bg6 Nh1 Nc2 f1B+ Qe2 Bg2 Nf4 Bh3 Qe1 Bg7 Rd6 Rf8 Qf5 Rd8 Qe6 Rf5 Rd7 Qb8 Q6e3 Be5 Qf3 Bc7 Qg2 Qa8 b8Q Qb6 Qa7 Qab8 Qb7 Qb2 Qf3 Qe5 Qg2 Nf6 Qf3 g4 Qff1 g3 Qg2 Bg4 Qh3 Rd4+ Kc3 g2 Kb3 g1Q Kc3 Rc4+ Kd3 Bf7 e8R+ Kg7 Re6 Kh8 Re7 Be8 Rg7 Rh5 Rd4 Bc8 Rdd7 Rd4+ Kc3 Rb4+ Kd3 Rb5 Kc4 Rh4 Bf8 Qb6 Be7 Ng4 Bc5 Qf6 Kd5 Ngf2 Ne6 Rc4 Nf4 Qb2 Ke6 Ng4 Bf2 Qc3 Bc5 Qe5+
1Bn1N1NR/r2rBrp1/B1K3b1/R1b4Q/n2R1P2/B2q1n1Q/Nq6/bk5q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 e3 h4 a4 b4 a3 b6 e2 h5 e1N b5 a2 b7 g3 b6 g2 h6 Nd7 b8N Ra7 h7 Nc5 b7 Bf5 Nc6 Bg6 b8B Na4 Nh3 g1R Nc3 e5+ Kc4 e4 Kb5 e3 d4 e2 Nf2 Rg3 Ng4 Rd3 Ne7 Nf3 Nf6 e1Q Be2 Qg1 Rh2 Qh1 Ne8+ Kd7 d6 Ke6 d7 c5 Qb3+ c4 Ba3 Rd1 Rh5 Rd2 Rd1 a1B Na2 Rd3 Rd5 c3 Kc6 c2 Bf1 Rd2 Ba6 c1Q+ Qc3 Qb1 Ra5 Qb2 Qc5 Rd3 Qh5 Rd2 Nc8 Bc5 Ne7 Nh6 Ng8 Nf5 Qh3 Rd3 Qh5 Nd6 Rd2 Nc8 d5+ Kf7 d6 Ke6 Rd1 Rd5 Rd3 Rf5 Rd4 Rf7 Ne7 Rhf8 Ng8 Re7 h8Q Rff7 Q5h7 Kf5 Qh2 Kg4 Q2h5+ Kg3 Qh3+ Kf2 Q8h5 Ke3 Nef6 Qf8 d8B Red7 Be7 Qd8 Ne8 Qbb1 Rc4 Kd3 Rb4+ Kc2 Rd4 Rdb7 d7 Qb2 Bg5 Kb1 Bh4 Qe7 d8R Qe3 Be7 Qd3 R8d6 Bf5 Rh6 Rd7 Rh8 Bg6
1B1RQ1B1/bN1n1pNQ/3N4/1b1r1qnq/b2rP1R1/2KR2r1/1Q5q/n3k2N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 b4 h5 g4 c5 b6 a5 g5 h3 b5 a4 b7 h2 g6 a3 b6 c4 g7 f3 Nh3 a2 Qb3 h4 Nc3 f2 Rg1 h1Q Rg4 Ra4 Qb2 Nf6 g8Q Bd7 Qh7 Qh2 e4 Qc8 Nb5+ Ke7 d6+ Ke6 Kc2 c3 Bf4 Rg8 Rd1 a1N+ Kd3 Bc6 d7 c2 Kc3 Bc5 Rd3 Rg6 d8R Nbd7 b8N Ra5 b7 Ba7 Be2 f1B Nd6 Rd5 Nf2 h3 Nh1 Ba4+ Nc6 Rgg5 b8Q c1R+ Kd2 Rg8 Ne7 Rc4 Nef5 Qc5 Be5 Qb5 Bg3 Rb4 Kc3 Rg5 Qh4 Nh7 Ng7+ Kf6 Qh6+ Rg6 Bd1 Ng5 Qh7 Qa5 Re3 Bfb5 Rd3 Qg2 Be2 h2 Bf1 Qf3 Bh3 Qf5 Qa8 Re5 d5 Qc7+ Qc6 Rd4 Nf2 h1Q Bh2 Qhf3 Nh1 Nc5 Qe8 Nd7+ Nc4 Qe2 d6 Red5 Bg3 Qef2 Bh2 Qh4 Bf4 Qh5 Bh2 Nb6 d7 Qcf4 Bg3 Qf2 Bb8 Qh2 Ne6 Rg8 Nd6 Ke5 Ng7+ Qe6 Rg1 Kf4 Bf5 Qf6 Rdd1 Kf3 Rg4 Nc2 Rd3+ Ke2 Qh6 Qfe5 Bh7 Ke1 Qg6 Na1 Qh6 Rh8 Bg8 Qf5 Qg6 Rh6 Qh7 Re6 Rc8 Rh6 d8N Nd7 N8b7 Rg6 Rd8 Nf3 Rf4 Rg3 Rg4 Ng5
n4N2/k1b3nB/r1RnB2R/qQ2Nb1K/2Rb1R1p/4rnQ1/P4B2/2Qn2r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 c5 f4 Kc7 d4 Kb6 d6 c4 g3 e4 d5 c3 d7 e3 d6 h3 f6 b3 f7 b2 f5 e2 f6 e1N Na3 b1N Bd3 c2 Nf3 h2 Nb5 Na6 Ne5 Nc7 Kh5 Nf3 g4 Nbd2 g5 Bg7 f8Q Ra6 g6 Ne4 f7 Na8 Nd4 Ka7 Be3 c1B Qe8 b5 f8R b4 Rf4 b3 Bf2 Qa5 d8R b2 d7 b1R Ne6+ Be3 Qd2 Rg1 Nf8 Nd6 Rc1 Bb6 Rc6 Bf6 g7 h6 Bh4 Bc7 Qc1 Rh7 Qg6 Rh8 Qg3 Rh7 Kg6 h5 Re8 Rh8 d8Q Bg4 Qd7 Rh7 Nf7 Bd4 Ree4 Nf6 g8B Nfe8 Ne5 Re7 Bdc4 Bh3 Bce6 Bg4 Bh7 Bf5+ Kh6 Rg2 Rhe1 h1N Rf1 Nf2 Rh1 Rg1 Rh2 Ba1 Rec4 Nd1 Rh1 Nb5 Qd5 Nbd6 Qb5 Bd4 Qg7 Re1 Bf2 Re3 Qg3 Rg7 Rf1 h4 Kh5 Bc2 Rf6 Bf5 Rh6 Rg6 Qh3 Rg1 Qg3 Rb3 Re1 Ra3 Re4 Re3 Rf4 Ng7+
1QN5/1BQb1nkB/n2br1N1/3R2B1/2r2Rp1/Qnq1RK2/3bP1r1/R2rr3 w - - 0 1 illegal: No possible last move, all moves rejected
3k1n2/1qbbn1BN/Qn1rr2K/2R1N2B/5P1B/r2Q1B2/rr2Rp2/2Q1bN2 w - - 0 1 illegal: No proof kernel
6R1/2r1rB2/6b1/n1rpQnB1/R2NKb2/1Nrr1Q2/2P1b1BN/2BkqnR1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 f4 e5 b4 a5 g4 h5 b6 e4+ Ke2 e3 Kd3 d6 b7 a4 b5 h3 b6 a3 Ra2 e2 Rb2 e1R Nc3 h2 Ra2 h4 Nh3 Qe8 Ng1 h3 Ra1 a2 Bg2 Bh6 Na4 Re7 Bc6 Ra5 Qe2 Rhh7 Nf3 Rc5 Rg1 h1N Nh2 Ng3 Bg2 Nc6 b8R Nf1 b7 Na5 Qe3 Be6 Ke4 d3 Qe2 Rc3 Nc5 d2 Nb3 d1R Qe3 Rdd3 g5+ Kf7 g6+ Kf6 g7 Bf7+ Kf3 Rec7 Rc8 Bc4 b8N Ne7 g8B Bf7 Rd8 Bg6 Bf7 Rg7 Nc6 Bg5 Rb1 a1R Ncd4 Ra3 Ra8 R3c5 Ke4 Rh7 Ra1 Rdc3 Nhf3 h2 Qe1 h1B Nh2 Qb8 Qe2 Qb4 Rg8 Rd3 Qf3 Qe1+ Qe2 Ra4 Ra2 Rac4 Ra4 Rcc3 Re8 Kg7 Rg8+ Kh6 Qe3 Kh5 Qe2+ Kh4 Qe3 Bh5 f6 Be2 f5 Rg7 Qf3 Bd2 Qh5+ Kg3 Qg5+ Kf2 Qf4+ Rf3 Qe5 Bf4 Bh5 Nd5 f7 Ne7 f8Q Be3 f6 Qd1 f7 Ke1 Bh3 Qd2 Bg6 Kd1 Bh5 Qe1 Bg6 Nc8 Bh5 Rfg3+ Kf5 Bb7 Bg2 Ne7+ Kf6 Ba6 Qa8 Bf4 f8B Rge3 Qf3 Bd3 Bg6 Rh7 Bh6 Rg7 Be8 Bg6 Bg5 Red3 Ke6 Bh7 Bg6 Nf5 Bh5 Rgd7 Be8 Bg6 Bf7 R5c6 Kd5 Re7 Ke4 R6c4 Bd2 R4c5 Bc1 d5+
qr1QbB2/2bQ3R/2r1B1p1/2n2N2/2b1rP1n/2krRN1K/4R2B/2r1RQ1n w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 f4 d5 Kf2 e5 Kg2 a5 c4 g3 b4 a4 h5 g6 h6 d3 h7 d2 f6 Ke6 f7 d4 b6 e4 b5 a3 b7 e3 c5 Kd5 b6 e2 c6 Kc4 c7 a2 Rh6 d3 Qe1 d1B Ba3 d2 Rh1 Na6 b8Q Ne7 b7 Be6 c8Q+ Nc5 Qd7 Ba4 Rh2 d1R Nc3 Nf5 Nd5 Ra6 Kh3 g2 Ne7 Nh4+ Nf5 Bd6 f8B Rc6 Nf3 Bc7 Bb2 g1R Bd4 Rd3 Qb1 e1R Re2 Ne4 Bf2 Rg8 h8R Kc3 Rh7 Bc4 Bg3 Rh1+ Bh2 Ng3 Qd1 Rh8 Rb1 a1N Qbc8 Rg1 b8R Nh1 Bg2 Qe8 Qcd8 Nb3 Re3 Re2 Qf1 Nc5 R8b2 Re1 Rbe2 Rg8 Qg5 Qa8 Qgd8 Rc1 Ne5 Rh8 Bd5 Re1 Nf3 Rc1 Qg2 Rge1 Qf1 Rg8 Bd6 Re8 Bf8 Re4 Ra1 Rb1 Be6 Rec1 Raa2 Rb4 Re1 Rb8 Rae2 Rd6 Q7e7 Be8 Qed7 Rc6
q3r3/kN1B2Qr/N1K2p2/2r1rRB1/3B1bP1/4rb2/1QRnn1b1/2N2NQn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 g4 Kb6 b4 h5 d4 a5 e3 c4 d6 a4 Kd5 c3 e4 h3 d7 f3 e5 f2 e6 h4 e7 a3 e8Q h2 Ne2 h3 Nd2 c2 Qe5 a2 Bb2 c1R Qg7 Rc3 Rc1 a1R Rc2 Re3 Nc1 Ka7 Bc4 Ra4 Qg1 Ra5 Nf1 Rh7 Bd3 Ba6 Bf5 Bd6 Be6 Qc8 d8B Bf4 Bg5 Nc6 Bd7 Bb7 Kc5 Qe8 d5 Nf6 d6 Nd4 Ba1 Ne2 Bd4 Kb8 Kb6 Bf3 Kc5 Ne4+ Kc6 f6 b6 Rb5 b7 Re5 b5 Qh8 Be6 Rd5 d7 Nd2 d8N Ree5 Bd7 Bg2 Ba1 Ka7 b8N Bf3 Na6 Qe8 Ne3 f1B Nb7 B1g2 Nf1+ Re3 Qg8 Re7 Qg7 Ree5 Bb2 Qh8 Bc3 Rae8 b6+ Ka8 Bd4 Qg8 Qf2 Qf8 Rg1 h1N Qe1 h2 Qf2 Bh3 Rg3 Bhg2 Qg1 Nf2 Rh3 h1R Rh5 Qa3 Bh6 Rh4 Rf5 Nh1 Bg5 Rh7 Nac5 Rhh8 Nd8 Kb8 b7 Rhg8 Ba1 Qa8 Na6+ Ka7 Bc3 Rh8 Ba1 Rh7 Bd4+ Rc5+ Kd6 Kb6 b8Q+ Ka5 Qb2 Rb5 Bc3+ Kb6 Nb7 Ka7 Kc7 Rbd5 Kc6 Rh5 Bb4 Rh6 Bc3 Rh7 Bd4+ Rc5+
n1k2BN1/1qnR1P1n/B1n5/r2Q1b2/3QN1Nr/1Q2R2Q/4Knpr/4bBb1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 f4 g5 c4 e5 b4 a5 h4 d5 h5 Kd7 b6 g3 b5 a4 b7 a3 c5 d3 f6 a2 f5 e4 f7 g4 h6 e3 f6 e2 b6 g2 h7 d4 Qa4+ Nc6 b8Q g3 b7 Qb6 Qb3 Ra5 Nh3 g1R Nc3 g2 Qh2 d2+ Kf2 e1B+ Ke2 d1N b8Q Qc7 Nf2 Ne3 Ba3 Nc4 Rd1 a1N Q8b7 Nc2 Nce4 N2b4 Ng4 Na6 Qhh3 Nb6 Qd5+ Bd6 f8N+ Kd8 f7 Bf5 Rd2 Nf6 Nd7 Na8 Qbb3 Kc8 Rd3 Qb8 Re3 Qb7 Bb4 Bh2 Ba3 Na7 c6 N6c7 Bf8 d3+ Kf3 d2 Ke2 Rg8 h8Q Nh7 Qhd4 d1N Ndf6 Rh8 Ng8 Nf2 Bc5 Ne8 c7 Nc6 Be7 Bd6 Bf8 Bc5 Qf3 Ba7 Rh5 Bc5 Qh3 Rh1 Rh6 Rh2 Rd6 Ng5 Rd7 Rh4 Qbc4 Ba7 Qb3 Nh7 Rg3 Qb5+ Q4c4 Nd1 Qcd3 Bg1 Re3 Qb6 Qd2 Nf2 Q2d4 Kb7 c8B+ Kb8 Qdb4 Nec7 Ba6 Qb7 Qbd4 Kc8
q1R2nNb/1bpB3N/2r2Q2/k1r5/n1r2R2/r1bBQrB1/4nP2/2N1RNK1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 d4 a5 g4 e5 d6 h5 d5 h3 g5 e3 b6 e4 g6 h2 g7 h4 b5 e2 b7 h3 b6 a4 Qd3 a3 Qd1 a2 Qb3 Ne7 g8B Rh5 Qc3 Nec6 Bf4 Ra6 Qe3 Bg7 Bg3 Nd4 Nd2 Bh8 Rd1 a1R Be6+ Ke8 Rb1 Nd7 b8N R1a3 b7 Nf8 Nd7 Rc6 b8R Bb7 Rc8 Rf5 Rb4 Rf3 Ra8 Qb8 Nf6+ Kd8 d7 Qc8 Raa4 Qa8 Nh7 Ke7 d8N Ke8 Bg8 Kd7 d6 Rc4 Nf7 Kc6 d7 Rc5 Rc4 Kb5 Rab4+ Ka5 d8Q Rc6 Qf6 Rc5 Bg2 Rc6 Nf1 Rc5 Kd2 e1N Ne2 Nd3 Nh6 Nb2 Ke1 Na4 Nc1 Rc6 Rg1 h1R Be6 h2 Bd7 Rc5 Ng8 Rc6 Qef4 e3 Rb3 e2 Qe3 Rc5 Bgh3 Rc6 Bhf5 Rc5 Bd3 Rc6 Kd2 e1B+ Kd1 Bc3 Rbb4 Ba6 Rb8 Bb7 Rc8 Rc5 Nd2 Rc6 Re1 Rf1 Rb4 h1R Rc4 Rfg1 Nf1 Rh5 Rb4 Rhc5 Rc4 Nc2 Ke2 Rh1 Rf4 Rh4 Nd2 Nd4+ Kf1 Rhh5 Kg1 Rc4 Nf1 Rb5 Nh2 Rbc5 Nf1 Ne2+
3nRrNb/p1R1Q2R/bR3nNK/5kNb/r6n/2b1B2P/1B1Q2B1/2b1r1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 g5 d4 c5 b4 f5 e5 g3+ Kf3 c4 e6+ Ke7 b6 Kf6 d6 g2 b7 c3 e7 c2 e8R Be6 b5 Bg7 b6 Qc7 d5 Qc8 d7 Bf7 d8N Nc6 b8B Rh4 d6 Bh8 Ne6 Nd8 b7 Qc5 Ne2 g1B d7 Bd4 Qd2 Bc3 Bg2 Qg1 Bb2 c1B Bc7 Kg6 b8R Nf6 Bb6 Rg4 Be3 Rh4 Rb6 Rb8 Ng3 g4+ Ke2 Rc8 Ne4 g3 Na3 f3+ Kd3 f2 Nc4 f1N N6g5 f4 Ne5+ Kf5 Ng6 f3 Ra4 f2 Rc4 Rf4 Rc7 Rb8 Ke2 Rg4 Kf3 Ra8 Bd4 Ne3 Bc5 f1B Bd4 Ng8 Nf6 Ba6 Bc5 Ra4 Bd4 Ne7 Ng8 Ng4 Bc5 Nf6 Be3 Ne6 d8Q Rc8 Bf1 g2 Q8d6 Nd8 Qb4 Nec6 Qe7 Nd4+ Kg3 Ra8 Kh4 Nf3+ Kg3 Qf2+ Kh3 g1R Bg2 Qe2 Kg3 Re1 Kh3 Qf1 Kg3 Nd4 Kh3 Qg1 Kh4 Ng4 Kh5 Nf6+ Kh6 Nf3 Ne5 Bh5 Ng6 Nh4 h3 Qh2 Rf1+ Rf4 Rf3 Qg1 Rg3 Ra4 Rg4 Rf1 Rd4 Rc8 Rdd7 Re1 Qb4 Bb7 Re4 Ba6 Rh7 Nb7 Ree7 Rf8 Re8 Nd8 Qa3 Nc6 Qe7 Nd8
bq6/1nnR1Q1q/5QRN/b1b2b2/3BR3/BQ1Bq3/pRPb1K1k/3r2rN w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 f4 Kf6 b4 d5 b6 e5 b7 g5 b5 a5 h5 d3 h6 e4 b6 g3 h7 d2+ Ke2 a4 Ke3 g4 Rh5 g2 Rh1 d4+ Kf2 d3 Rh3 e3+ Kg3 a3 Nf3 g1B Be2 a2 Rh4 Ne7 Nd4 Nd5 Qf1 d1Q Nd2 Nd7 b8Q Bh6 b7 Nc7 Ba3 Rg8 h8B+ Rg7 Qf3 Nc5 Nf1 d2 Bd3 e2 Qf2 Qe1 Rd1 Be6 Kg2 g3 Kf3 g2 Ng3 Qf1 Nh1 e1B Ke3 Ra6 Rg4 Rd6 Rg6+ Kf7 f6 Bf5 Kf3 Qg8 Ke3 Qh7 Kf3 Qe2+ Kg3 Qe8 Kf3 Bh3 Nf5 Ke6 f7+ Kd5 f8Q Qd8 Qa7 Qb8 Qg3 Be3 Qf6 g1Q Ke2 Bg5 Nh6 Bf5 Kf3 Bd4 Ke2 Qe3+ Kf1 Nb3 Kg2 Na5 Kf1 Bc5 Qf3+ Be4 f5 Rdd7 Qab6 Rd8 Qf7+ Ke5 f6 Bf5 Qbb3 Rd6 Qc6 Kf4 Qcb6 Qbe8 b8R Nb7 Qa6 Qeg8 Re8 Qf8 Re7 Qb8 Re4+ Kf3 Rb1 d1B Rb2 Ba5 Qab6 Rd4 Qc6 Bab6 Qd6 Be2+ Ke1 Kg2 Qdf8 Kh2 Q8e7 Qc1+ Kf2 Bf3 Be2 Kh3 Qfe8 Rd3+ Re3 Nd6 f7 Nb7 f8R Nd6 Q8f7 Rd4 Rd8 Ba5 Rd7 Kh2 Rge6 Rd1 Bd3 Ba8 Qd8 Rg8 Bd4 Nb7 R3e4 Bf4 Rc6 Rgg1 Rg6 Bg5 Qdf6 Qd2+ Be2 Qc3 Ba6 Bd2 Bc4 Qh3 Bd3 Qe3+
B7/B1b1QR1b/QnQ2nR1/1N6/1br2N1q/2b1Kp2/B1rNbP2/Nqr4k w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 Kd7 g4 Ke6 c4 Ke5 b6 Kf4 d4+ e3 b7 e5 d5 a5 g5 h5 g6 f5 c6 h3 d6 h2 d7 h4 c5 e4 c7 a4 g7 a3 c6 a2 Qb3 h3 Bd2 Bb4 Bc1 Qh4 d8N Nf6 g8B Ra4 Qf7 Nbd7 b8Q Ba6+ Qb5 Nb6 c8Q Bc3 c7 Rc4 Qc6 Kg4 Qb8 f4 c8N Rh7 Qfe8 Rc7 Nd2 Be5 Rb1 a1B Qbb7 Bac3 Nd6 Rc8 Nb5 Bc7 Qe7 Bb4 Ke1 e2 Nf3 Bc3 Bg2 Bb4 Rg1 h1B Qf7 h2 Nfd4 Rc2 Bf3+ Kh3 Nb3 Bg2 Qh7 h1R Na1 Kh2 Ba2 Bh3 Qe7 Bf5 Ba3 Bh7 Ne6 Bc3 Bc5 Bb4 Bg4 f3 Nf4 Bc3 Bge6 Bb4 Rf1 Rg1 Bed5 Kh1 Rb3 Na4 Ba7 Nb6 Rb2 Rd8 Qe5 Bb8 Qc4 Bf8 Na3 Na8 Qe6 Rc8 Qd6 Rc3 Ndb3 Bb5 Kd2 e1B+ Kd1 e3 Qba6 Rc2 Qdc5 Nc7 Ba8 Ncd5 Rb1 Bc3 Qc7 Re8 Q4c6 Re4 Re1 Bf1 Q7b7 Rc4 Re2 Ng4 Nb5 Ba3 Rd2 Nb6 Rd7 Nf6 Rf7 Bab4 Qe7 Bc7 Nc5 Rb2 Ne4 e2+ Kc1 Rb3 Kc2 Rb2+ Kd3 Rc2 Ke3 e1Q+ Ne2 Qc1+ Nd2 Qb2 Nf4 Be2 Rf1 Kh2 Rc1 Rh1 Rg1 Qb1 Rg4 Rhc1 Rg6 Kh1
4Bkr1/3Qr1RB/r4K2/2rbnN1r/qBRb1b2/NpQn4/Pq3B2/N1Q5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Ke3 b5 Ke4 c5 f4 h5 d4 b3 g4 b2 f6 h3 f7+ Ke7 g5 h4 d6+ Kd7 Kf5 b4 d5 b3 g6 c4 g7 c3 Ne2 c2 Ng3 h2 Be3 c1B Na3 h3 Bf2 e4 Rg1 h1R Bb5+ Nc6 Ba4 Be3 Qc1 Ne7+ Kf6 b1Q g8B h2 f5 Ra6 Bh7 Bfh6 f8Q Rg8 Qg7 Ke8 Bb5 Qa5 d7+ Kd8 Rg2 Ne5+ Bc6 Bhf4 Qh8 Kc7 d8N Kd6 Be8 Be6 Nc6 N7g6 Nb4 Qb2 Nbc2 Qa4 Rb1 Bd4 Na1 e3 Qg7 Qd2 Rb2 e2 Rc2 e1R Rc4 Qb2 Rg1 Ra5 Qh8 Rc5 Rg2 Kc7 d6+ Kd8 d7 Bd5 Qg7 Rhf1 Qh8 h1R Rg1 Rh5 Rg2 Kc7 d8Q+ Kb7 Qe7+ Kc8 Qhg7 Nd3+ Qe5 Bde3 Qec3 Nge5 Qf7 Bd4 Qd7+ Kb8 Ne2 Rg1 Rg7 Rg4 Ng3 Rg6+ Ke7 Ra6 f6 Re4 f7 Re3 f8B Re2 Qd6+ Kc8 Kf6 Re4 Qc6+ Kd8 Nf5 Nf3+ Kg6 Rb5 Bb4 Rc5 Bd7 Re7 Qe6 Nfe5+ Kf6 Bf3 Bb5 Bc6 Qd6+ Ke8 Qc7 Kf8 Qd6 Ba8 Be8 Bc6 Qd7 Bd5+
1N2N3/b3k1n1/nB2n1b1/n2R3r/2Q3Rn/Pp1bQ3/1KB2B2/q1QNrqQ1 w - - 0 1 illegal: No possible last move, all moves rejected
R1N2RBK/3r4/n4r2/2Rb4/QrQ2np1/5k1B/1qNB1P1r/1Nq1nrbR w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 e5 b4 g5 h4 d5+ Kd3 a5 c4 g3 c5 g2 c6 g4 b6 a4 b7 a3 b5 a2 c7 Be6 c8B Ne7 b6 Ng6 h5 Ra4 h6 Rb4 h7 Qc7 Nf3 g1R Bh3 Bd6 Bd2 Na6 b8Q Rf1 b7 Qc1 Ne1 e4+ Ke2 Ke5 f6 d3+ Ke3 Nf4 f7 Qb2 Qc7 Rf8 b8R Rh8 Bc1 d2 Qa4 d1Q Bd2 Qdc1 Ra8 Kf5 f8N Kg5 Ng6 Rf8 h8R Rf6 Nc3 Be5 Rb1 a1R Qc4 Bb8 Kd4 e3 Rd8 e2 Nc2 e1N Rf8 Bf7 Be6 Ra3 Ke3 d4+ Ke4 d3 Ne7 Bc7 Nc8 Bg8 Be3 d2 Bf7 d1R Bd2 Bd6 Ra1 Bc7 Nb1 Rd3 Ra3 Rd7 Rd3 Bd6 Rd5+ Be5 Be6 Rh7 Rc5 Rh8 Be3 Rd7 Bd2 Rhh6 Bg2 Rh2 Bh3 Bf7 Bd5 Be8 Bg8 Bf7 Rb5 Be6 Rc5 Bd5+ Ke3 Ne6 Nca3 Rff7 Rg1 Rg2 Nc2 Bh2 Rh1 Kf5 Qc6 Nf4 Qa4 Qa2 Kd4 Bg1 Qa3 Rh2 Qa4 Nfg2 Ne3+ Kf4 Nc2+ Kf3 Ke5 Bb7 Ke6 Nf4+ Ke5 Rfe7+ Kf6 Bd5 Bf7 Re8 Kg7 Re6 Kh8 Rf6 Bg8 Qab2
r1bR3b/6RK/kbN1R3/1n4B1/N1p2bN1/2nr1P2/q2b2BR/Br2q1QQ w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 e5 b4 h5 g4 a5 d4 c5 f3 Kc7 g5 Kb7 g6 a4 b6 a3 g7 h3 d6 a2 b5 h2 d5 c4 d7 h4 d6 h3 Nc3 Nf6 g8R Na6 Bg2 Nc7 Na4 Bh6+ Rg5 Qe7 Bb2 Rd8 Qf1 Qg7 Re1 a1B Bd4 Bc3 Qf2 Ba5 Ba1 Qh7 Re2 Bg7 Qe1 Bh8 Rg7 Qh4 Qf1 Qe1 Qf2 Qb1 Qf1 Qa2 Re1 Kb8 b7 Ka7 b6+ Ka6 b8Q Nb5 b7 Bc7 Re2 Ba5 Qc7 Bb6+ Qc5 Nd5+ Kf2 e3+ Kg3 e4 Kh4 Ka5 Kh5 Nc3 Kh6 Ka6 Re1 e2 Kh7 e3 b8N+ Kb7 Nc6 Ka6 Rc1 e1B Rb1 Rg8 d8B e2 d7 Bg3 Bg5 e1B d8R Bd2 Re1 Bgf4 Re6 Rf8 Ne5 Rf5 Ng4 Rd5 Ne2 Rd3 Qcf2 Bb8 Nd4 Bbf4 Rg1 h1R Nc6 h2 Q1e1 Bde3 Rf1 Bd2 Qg1 Nc7 Rf2 N7b5 Qgf1 Rg1 Rfe2 Rh1 Qff2 Rf1 Qg1 h1Q+ Qh4 Qh2 Rf2 Qg3 Qhh1 Re1 Bh3 Rb1 Rh2 Qf2 Bg2 Qe1
5Qn1/2K5/1r1Qr1R1/2qr2BP/2rkBp1b/1q2R1nb/Q1b2N1B/1QNrR3 w - - 0 1 illegal: No possible last move, all moves rejected
2Q2b2/1bR1n2B/rB1B2q1/2N1q1pQ/2RPr2N/6r1/rQB1rn1k/1nRK4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 a5 b4 c5 e4 g5 d6 Ke6 e5 Kf5 d7 f3 b6 f2+ Ke2 g3 h5 Kg4 e6 f5 b5 g2 h6 Kg3 b7 c4 b6 f4 h7 f3+ Kd2 a4 e7 a3 e8B a2 Qe2 c3+ Kc2 Nh6 Bg6 Qc7 d8B Qe5 Ba3 Nc6 b8R Ra6 b7 Ng4 Bb6 Ne7 Bd6 Rg8 Kc1 c2 h8Q Rg7 Kd2 c1R Qh5 Rc2+ Kd1 Rh7 Qb5 Re2 Nc3 Rh6 Bd3 Re6 Rc1 a1R Bh7 R1a2 Qb2 Re4 Bd3 f1N Bb1 f2 Nf3 Nd2 Bc2 Nb1 Nh4 Re2 Rf1 g1R Ne4+ Kh2 Nc5 Rg3 Ra8 Re4 b8Q Bb7 Ra7 Re2 Re1 f1Q Qc8 Qf7 Rf1 Qff6 Rf3 Qg6 Rc3 Qef6 Rc4 R6e4 Ra8 Qe5 Ra7 Bc6 Rd7 Bb7 Rc7 Nf2#
N3B1q1/1R4b1/2nQ1RN1/Q1Qb1PRQ/1n1Npn1B/2n1Kq1r/8/n4rrk w - - 0 1 illegal: No possible last move, all moves rejected
1BB1kNR1/N2RB3/2Q1b3/3QPqp1/K1n1NQ2/b1r1q2b/1b1r1n2/1Q3b1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 Kc3 g5 Kb3 c5 h4 g3 e4 f3 b6 f4 h5 f2 d6 c4+ Ka4 c3 b4 f3 d5 c2 h6 g2 b7 Nc6 b8B Ra6 d7+ Ke7 d6+ Kf7 h7 Na7 b5 Nh6 b6 Nb5 b7 Na3 Nd2 Qf6 d8Q Ng4 d7 Nc4 Ba3 c1Q Qb6 Qf5 d8Q Be6 Ne2 g1N Bh3 f1B Qd5 f2 Nd4 Ne2 Nc6 Ng3 Na7 Ke8 Be7 Bg2 e5 f1B Q1f3 Nf2 Ne4 Qe3 Qf4 Rg8 Qbb5+ Rc6 h8N Rg7 Rh2 Ngh1 Rd1 Rf7 Bg4 Bh3 Ng6 Rg7 Qb6 Rc7 Qbc6+ Rd7 Kb5 a4 Rd3 a3 Ka4 a2 Rd1 Bhg2 Rh8 a1B Rg8 Bd4 Bbd6 Bb2 b8Q+ Kf7 Qb3 Ke8 Bb8 Rh7 Qa2 Rh3 Qa1 Rg3 Qb1 Bh3 Be2 Na5 Ba6 Nc4 Bc8 Qb6 Qfc1 Rc3 Qf4 Qe3 Qdd3 Nd6 Bd8 Kf7 Qd2 Be7 Nf8 Nc4 Qdd3 Bea3 Be7 Rc2 Qd2 Rd3 Qa5 Rdc3 Rd7 Ke8 Qad5 Rd2
8/1Qr5/8/QB1p4/NRq1NNRr/bQr1B3/3RRnrP/kbn1nKqr w - - 0 1 illegal: No possible last move
rq1RQ2n/BB1N1q1b/1Nr2QrB/1R1p3q/P1q5/Rn2K1b1/6k1/3q2NR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 h4 Kf6 f4 g5 a4 d5 c4 b5 c5 e5 c6 e4 c7 b3 h6 b2 h5 g4 h7 d3+ Ke3 d2 h6 b4 Nc3 b1Q Bb2 b3 Bc4 g3 Rh2 g2 Bc1 b2 Bf1 Qc2 Rb1 Bd6 Rh3 Nd7 Ba6 Qe8 Bb7 Nc5 Qe2 d1Q Rg3 Bd7 c8N Qh5 Nb6 Ne7 Rh3 Rhb8 h8R Ng6 h7 Nb3 Rd8 Rc8 h8R Rc6 Rh7 Nh8 Rh1 Qg6 R7h3 Qf7 Qf1 Qdh5 Bd2 Ke7 f6+ Ke6 f5+ Ke5 Be1 Qcd1 Bf2 Be6 Qe2 Qf1 Qb5 Qc4 Qa6 Qe8 Rg3 Bg8 f7 Bh7 f8B Qef7 f6 Kf5 Rgh3 Kg4 Bh6 Bg3 Qb5 Rcc8 Qe8 Rc6 Nf3 g1Q Ne2 Qf1 Neg1 Qd1 Ra1 b1Q Ra3 Qb2 R3h2 Qbe5 Rg2 Qb8 Ne5+ Kf5 Ned7 Kg4 Nf3 Qh2 Rgg1 Kh3 Rf1 Kg2 Ng1 Qhh5 Re1 Qe6 f7 Qe7 f8Q Qef7 Re2 Qh2 Nc8 Na1 Rb2 Qg6 Qf6 Qhh5 Rb4 Qf7 Rb5 Qdg4 Kd2 Nb3+ Ke1 e3 Qb2 e2 Qg7 Nd4 Kd2 e1R Qg5 Re5 Qf6 Rg5 Be3 Rg6 Bf2 Nc2 Ba7 Nd4 Ke3 Qd1 Ncb6 Nb3
2Qr4/1R1BbQB1/7B/1bP4p/nk2n1B1/5Nb1/K2nNb1N/R1qrbR1q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 a5 c4 d5 Kc2 Kd7 Kb3 Kd6 f4 Kc5 g4 h5 f5 e5 b6 e3 b7 a4+ Ka2 d3 g6 e4 f6 d2 b3 a3 g5 e2 g7 e1B g6 e3 f7 e2 Bh3 d4 Bd7 d3 Bb2 Be7 f8B Nc6 b8R Na5 Nf3 Qc7 Nc3 Nf6 g8B Ne4 g7 Bf2 Bge6 e1B g8N Ba6 Nh6 Bb5 Ng4 Kb4 Bh6 Rd8 Ngh2 Ra6 Qc1 d1Q Rf1 d2 Rb7 Rd6 Bg4 Qc6 c5 Nc4 Qb1 Qc1 Ne2 d1N Bbg7 Ncd2 Qd3 Nb2 Qd5 Na4 Qe6 Nb1 Qf7 Rd1 Bh8 Ka5 B8g7 Nbd2 b4+ Ka6 Rb1 Rf8 Rb8 Nf6 Ng5 Bd3 b5+ Ka5 b6 Qh1 b7 Bb5 Ka1 a2 Ngf3 Nfe4 Be8 Qc4 Bed7 Rd8 Rc1 Nb6 Kb2 a1B+ Ka3 Be5 Ra1 Qc3+ Ka2 Beg3 Rc8 Nb3 b8Q Qc1 Rc7 Kb4 Rb7 Nbd2 Qc8 Na4
RN2rr1K/1B1qBrNb/5qN1/bP4nr/kBQrR1R1/p4n2/1q2Q3/5R2 w - - 0 1 illegal: No possible last move, all moves rejected
N2Q3Q/3BR3/2Qqn2P/3b2nk/2qq3b/2N1N1q1/p1Kq1r2/b1B1NRrR w - - 0 1 illegal: No possible last move, all moves rejected
2N1q1bK/1k1n2B1/2NBBbPr/2R1Q3/b2bp3/n2Rr3/3b2R1/1NrQ1B1q w - - 0 1 illegal: No possible last move, all moves rejected
1Q3B1r/3rrN2/1R2pb2/2b1R1P1/nbQN1Q1n/1K1B3k/1Rb1q1bB/3q2R1 w - - 0 1 illegal: No possible last move, all moves rejected
1b1Nbrq1/N2R4/1n1P1Q1Q/BK2pB1Q/1b1n2b1/q1RQ1Bk1/6b1/1R1rr3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 f4 Kd6 b4 e5 g4 h5 d4 c5 b6 a5 g5 e3 Kd3 a4 Kc4 h3 b5 h4 b7 a3 g6 h2 f5 e2 g7 e1Q b6 h3 f6 a2 f7 Qc7 Nf3 Nc6 b8Q Qh4 b7 Qg5 Na3 Nf6 g8B Bg4 Qd8+ Nd7 b8R Qa7 Rab1 a1R Kb5 c4 Rb7 c3 Bd2 c2 Be2 c1B Bh7 Qg8 Ba5 Bd2 Bf5 Bb4 Ng5 Rc8 Re1 h1B Bf3 h2 Re3 Bg2 Ne6 h1B Qf6 Nb6 Rc3 Rd8 Qh6 Rd7 Nd8+ Ke7 Qh5 Kf6 Qd3 Bfd6 Rc7 Qa8 Rb7 Bc7 d6 Bb8 d5 Qa7 Rb2 Re1 Rb1 Rh7 f8Q+ Rhf7 Qh2 Kg5 Qh5+ Kf4 Qfh6+ Kg3 Rc7 Rde7 d7 Rf8 d6 Rg7 Ne6 Qa8 d8Q Rh7 Ra7 Rh8 Qdf6 Nd4+ Ka6 Rh7 Nd8 Rc7 Nb5 Rd1 Ra3 Rcc1 Rc3 Re1 Ne6 Rcd1 Nd8 Qad5 Rd7 Qa2 Na7 Qa3 Qhf7 Bh5 Qfh7 Be8 Qh5 Bh3 Qhg7+ Bg4 Qgh6 Ne2 Kb5 Bg2 Ra1 Bc7 Rac1 Bb8 Rb1 Nd4+
4B2N/K2qBn2/2Pn1bb1/1R2rR2/1Nq1N2b/2R3rB/1Q3pn1/QN1b2bk w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 h4 Kf6 e4 Ke5 b4 a5 c4 f5 h6 d5 c5 g5 b6 g4 c6 d3 b5 g3+ Kf3 d2 h5 g2 b7 d4 h7 d3 h6 a4 b6 a3 Kf2 a2 Qg4 d1N+ Kf3 d2 Qh5 Na6 b8R Be7 b7 Ne3 Ne2 d1B Qh2 g1B Bh3 Qd7 Ba3 Bh4 Be7 Nc5 Qg2 Ra3 Qg7+ Ke6 e5 Kd5 e6 Ne4 Qb2 Nd6 Rh2 Ra5 Rf2 Ng2 Rf1 Nf6 Rf2 Rg8 h8Q Nfe8 h7 Nf7 Qhf6 Ned6 h8N Ra4 Qfc3 Re4 Qg7 Re5 Rf1 Bc2 Ng3 Be4+ Ke2 f3+ Kd2 f4 Kc3 f2 Kb4 f3 Ka5 Bc2 Ka6 Bd1 Qf6 Rg7 Ka7 Rgg5 Ne4 Rg3 Qb5+ Kd4 Qb2+ Ke3 Qg7 Bc2 Rc1 f1Q Qf6 Bd1 Rc3+ Qd3 Qg7 f2 Qf6 Qc7 Qg7 Bd7 Rf8 Qd8 b8N Kf3 Na6 Be8 Nb4 Qc8 Na3 Qd8 Rac1 a1B Nb1 Qc8 Rc5 Qf1 Rb5 Qc4 Rc3+ Ne3 Bg4+ Kg2 Bh3+ Kh1 Qf6 Ng2 Qg7 Nd8 Rf5 Bg6 Bf6 Rc5 e7 Re5 e8B N8f7 Be7 Qd7+ Ka8 Nd8 Rb3 N8f7 Qd2 Rc5 Qe5 Nb7 Ka7 Rd5 Qa2 Bb2 Qa1 Rc5 Qc3 Rd5 Qc2 Bbf6 Rc3 Re5 Qcb2 Nbd6+
1nr1Q1BR/6KQ/bqP1N3/3b1Q1B/3pnbb1/NnB3qB/Nb2R2r/k7 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 e4 a5 g4 h5 c4 h4 e5 d5+ e6 f3 g6 d3 b6 d2 g7 a4 c5 f2 g5 h3 c6 h2 g6 d4 b7 a3 Qg4 Kb3 Nf3 d1B Ng5 a2 Bh3 f1N Na3 f6 Bd2 Bb4 Bc3 Bf3 Re1 a1B Re2 Ka2 Qe4 Bc5 b4+ Nd2 b5 Bd6 b6 Bb2 Qd3 Nb3 Qc2 Nd7 b8N Bf4 e7 Bd5 b7 Qb6 Na6 Nb8+ Ne6 Rh4 e8B Rh6 Bf1 Ka1 Nb4 Rh7 Na2 Rh8 Rg1 h1Q Rg4 Rh4 Bh3 Qg1 Rg5 Qg3 Rh5 Bd7 Rh8 Bc8 Bg2 Rh2 Bh3 Na6 b8Q Bd7 Qd8 Rc8 Bf7 Nb8 Qe8 Qe1 Kg4 f5+ Kh5 Qg3 Qe4 Bd6 Qf3 Nf6+ Kh6 f4 g8Q Ne4 g7 Bc7 Qh5 f3 Qf5 f2 Bh5 f1B Qgh7 Bd6 g8B Bf4+ Ng5 B7e6 Kg7 Bd7 Qf6 Bg4 Ne6 Qa6 Qff5 Qb6 Rc2 Bb5 Re2 Ba6
BQR4N/1n3Rr1/1PB1R2K/BrQ1nb2/R4Nk1/1pbQ1bq1/q4q2/2q2q2 w - - 0 1 illegal: No proof kernel
3rQ3/k3K3/P1B4B/2rn2b1/2N1Qbrn/N3Bp2/N1Q2qR1/1Rr1rbqB w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Kg4 g5 Kf5 c5 a4 c4 d4 b3 e4 f6 h4 c3 e5 Kc7+ e6 Kb6 d6 b2 a5+ Ka7 d7 f3 d5 g4 a6 c2 e7 g3 Ke6 b4 e8B g2 d6 f2 h6 b3 h7 f5 h5 f4 h6 f3 Ra2 Qc7 Ne2 g1Q Be3+ Qc5 Na3 c1B Nc3 b1R Bg2 f1R Qc2 b2 Kf7 Ra1 d8Q b1R d7 Re1 Qe7 Rb5 d8N+ Nd7 Qee4 Be7 Nb7 Nf8 Bc6 Bh3 Nd6 Nf6 Ndc4 Rg8 h8Q Rd8 h7 Rg4 Bh6 Ng6 Qe8 Bf4 h8B Qcd4 Rb2 Rad1 Na2 Rc5 Rh2 Rc1 Rb1 Qb2 Bh1 Bf1 Rg2 Nh4 B8g7 Qbd4 Bg5 Qdf2 B7h6 Bd2 Bf4 Bd6 Be3 Bf4 Ke7 Bg5 Bd4 Bdf4 Be3 Nd5+
n1nn4/R4Nbb/p3r1Q1/kBbKQ1R1/N2bRB2/4PNN1/3qb1Qr/5q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 f5 d4 g5 b4 c5 h5 Kc7 h6 Kb6 d6 g3+ Kf3 g2 d7 c4 d5 c3 h7 c2 d6 Qf6 d8R Bg7 d7 Ne7 Qd6+ Nbc6 Rh4 a6 Nd2 Bb7 Ra5 Nc8 Ne4 Re8 h8Q Re6 Bd2 c1Q Qg8 Qfa1 Ng3 g4+ Kf2 f3 Bf4 Qd2 Qe5 Qd5 Ke3 f2 Nf3 g1B Re8 Nd8 Re7 Qdd1 Qh7 Qab1 Qg6 Be4 Rh7 Bd3 Kd4 Qd2 Kd5 Ra7 Qe4 Rc7 Qe5 Rc2 Qb2 Rf6 Re4 Re6 Bg2 f1B Qe5 Bc5 e3 Bfe2 Qb2 Qf1 Qa2 Nb7 d8N Bgd4 Nf7 Nd8 Nh6 Rb2 Ra7 Bc2 Nf7 Bb1 Nh5 g3 Bh3 g2 Ng3 g1B Bg2 Qfc1 Bf1 Bh2 Qc4 Bd1 Qe2 Rc2 Qf2 Bg7+ Bd3 Be2 Qg2 Qf1 Ra8 Kb7 b6 Rb2 b5 Bc2 Bg5 f4 Ra7+ Kb8 Kc4 Qb1 Qf2 Qde1 Qf6 Bcf8 b7 Kc7 b8N+ Kb6 Re5 Qg1 Nf5 Bf1 Ne1 f3 Qh6 Bf4 Ng3 Qg2 Qe2 f2 Nf3 Bd6 Ra4 Be7 Rf5 Bfe5 Bf4 Ra2 Rg5 Qh2 Rb4 Ka5 b6 Bc5 Kd5 Qa1 Bc4 Bh7 b7 Rb2 Qd2 Bfd3 Nd7 f1N Qf2 Nd2 b8Q Qf1 Bb5 Nc4 Nb6 Ra2 Qg1 Qhf2 Qh5 Q2e1 Qd6 Rh2 Qg6 Be2 Qg2 Bc3 Qe5 Qd2+ Ke4 Ba1 Na4 N4b6 Rd4 Na8 Kd5 Qde1 Re4 Bad4 Nh6 Qc1 Nf7 Qd2
b3K3/3qN2N/pn1N3Q/PR1Rr3/Rbb3bQ/q2n4/1Qb2Bkq/2rB3N w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 a4 Kg3 d4 b5 e4 h5 d6 f5 a5 f3 c6 a6 c7 f2 d7 f4 Ke6 h3 Kf7 f3 d5 b4 d6 b3 e5 b2 e6 h4 e7 h2 e8N h3 Nf6 Rh4 Qe2 Rh8 Be3 Ne7 Nc3 b1B Nb5 Bh7 Qb2 Nd5 Ne2+ Kh4 g4 Nb6 g5 Nc6 g6 Nb4 g7 Bc2 g8Q Rh5 Nh7 Nd3 Qgg7 Re5 Ng3 Rb8 Rg1 h1Q Be2 f1Q Bf2 h2 Ra4+ Kh3 Bd1 Qe1 Rf1 Qb4 Qh6+ Kg2 Re1 Qg1 Nh1 Qa3 Ree4 Rb7 Reb4 Rb8 Nd4 Ra8 Nf5 Ra7 Ne7 Rb7 Bd4 f2 Rb5 f1B Bf2 Rb8 Kg8 Qe8 d8R Bg4 c8N Qd7 Kf7 Rb7 Qe3 Rc7 Qh6 Qc6 d7 Bfe2 Ng6 Bb4 Nge7 Qd6 Ke8 Qd4 Ng3 h1B Nd6 Rc3 Rc8 Bf1 d8Q Qh2 Rc6 Qd5 Rcc5 Qb7 Rd5 Qd7+ Kf8 Bb1 Kf7 Rc1 Qh8 Bfe2 Q8f6 Bc2 Qfh4 Nf4 Kf8 Bc4 Kf7 Nd3 Kf8 Qc7 Ke8 Qd7+ Kf7 Be2 Kf8 Kf3 Rd4 Bg2 Nh1 Bh3 Bg3 Bg4 Be1 Kg2 Bf2 Qf5+ Ke8 Bef3 Q4f6 Be4 Qfh4 Ba8 Rdd5 Qd7+
NQQ2Qb1/7p/K1bNq1N1/1PR5/B4rq1/2Rn1b2/bk2nb1N/2rB1rB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kd6 d4 f5 Kd2 a5 Kd3 c5 Kc4 f3 e4 f4 g5 a4 b6 h3 Kb5 f2 g6 f3 b7 h2 g7 c4 Bh6 a3 Be2 f1B Qc2 a2 Na3 c3 Rc1 a1Q Be3 f2 Nf3 Nf6 g8N Ra4 Ne7 Nfd7 Ng6 Bg2 Bd1 Nc6 b8Q+ Qc7 Re1 h1B Nh2 f1B+ Re2 Nc5 Bg1 Nd3 Re3 Be6 e5+ Kd7 d6 Qc8 d5 Bg8 Rf3 Qa2 Nc4 Nd4+ Kb6 Ne2 e6+ Ke8 e7 Kd7 Rh3 Bf3 Kb5 Bg7 Rg3 Bd4 e8B+ Kd8 d7 Bf2 Nd6 Bh3 Nf8 Ke7 d8N Kf6 Ng6 Qg4 Ne6 Bf1 Nc7 Bhg2 Qd2 c2 Na8 Bh1 Qh6 Bh3 Nf4+ Ke5 Ng6+ Kd4 Qf8 Kc3 Bc6 Qb3 Be8 Ra1 Bd7 Rb1 Ka6 Kb2 Ba4 Qbc4+ b5 Qce4 Nc8 Qee6+ d6 Bc6 d7 Bhf3 d8Q Bhg2 Qfe7 Bcd5+ Nd6 Ba2 Qde8 Bc6 Q8d7 Bgf3 Qef8 Bf7 Qdc7 Ne5 Qd7 Bg2 Qg7 Rf8 Qdc8 Bg8 Re3 Rf7 Qgf8 Rf4 Rh3 Bh1 Rh5 Nd3 Rc5 Nd4 Be2 Bhf3 Rd1 Ra1 Rd2 Rf1 Bd1 Ne5 Rd3 c1R Re3 Ne2 Rec3 Nd3
4n2r/r2QKp2/1Rq1B1Br/1rR5/1B2QP1k/7b/qnq3r1/QQNN2Rb w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 Kb4 e5 Kc5 Ke7 g4 Kf6 c4 Kg5 f4+ Kg6 b4 h5 g5 a5 d5 e4 d6 a4 b6 h3 d7 e3 Kd6 e2 b7 e1Q c5 h4 c6 a3 b5 a2 b6 h2 c7 h3 Nc3 Nf6 Ba3 Qe4 Nge2 Kh5 g6 Na6 b8R Nc5 g7 Qde8 g8Q Ra7 d8Q Kh4 b7 Na4 Qd7 Nb2 Rg1 h1R Qg2 h2 Rc1 a1Q Bb4 Qa2 Rc2 Qec4 Qa1 d1R Qe4 Rd2 Nc1 Rg2 Nd1 d2 Bd3 Qcb3 Rc5 Qc2 Qee7 Rh6 Bg6 Rh8 Qe4 Rh6 Qd8 Bh3 c8B Qc6+ Ke7 Ne8 Be6 Rh8 Qd7 Rh6 Rd8 Rh8 b8Q Rh6 Nc3 d1R Qb6 Rd4 Nd1 Rd5 Rb8 Rdh5 Qb5 Rh8 Rb6 R5h6 Rf1 Rhg1 Re1 h1B Qf1 Rg5 Qfd3 R1g2 Rg1 Qd2 Qdb1 Qc2 Rc3 Rga5 Rc5 Rb5
4Bn1N/r3P1nR/q2bQ2K/r5Bq/Q1N5/2pB4/3QnkNr/R1B2rrb w - - 0 1 illegal: No possible last move, all moves rejected
4QBR1/1B1P1nQ1/3BQb1N/7q/b2K1qrb/2pB1R2/1N3r1k/2bqNnb1 w - - 0 1 illegal: No possible last move
5q2/1qBp4/B2K2Nr/1RB1nB1r/3QQ1N1/PR4qk/nQ2qbNq/3br3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Ke4 e5 Kd5 b5 f4 g5 c4 b3 h4 g4 a3 d3 c5 b2 c6 e4 h6 g3 c7 e3 h7 g2 h5 e2 h6 e1Q Nc3 b1R Nge2 g1Q Rh5 b4 Qa4 b3 Nd1 d2 Ne3 b2 Bh3 Qd1 Qe4 Ba6 c8B Bd3 Ba6 Ne7+ Kd6 Qc2 Ra2 d1Q Ng4+ Kf7 f6 Qg3 Ra1 Nbc6 Rb5 Ne5 f5 Rb8 Rb3 Rb5 Nf4 Qch2 Ng2 Qe2 Bf4 Re1 Rb1 Rc5 Rb5 Bc2 Rb3 Bd1 Rb5 Rg8 h8Q Rg6 h7 Rh6 Rb3 Bg7 Rb5 Qa8 Qb8 Nd5 h8Q Nb4 Qb6 Rc1 Qbd4 Na2 Qb8 Rc5 Qb6 Kg8 Qbb7 Kh7 Rb3 Rh4 f7 Rb5 f8B Rh6+ Ke7 Bf6+ Kd6 Qc8 Be7 Qf8 Qb8 Bh4+ f6+ Ng6 f7 Rbh5 Rc1 b1Q Rc5 Qbb2 Rcb5 Qb1 Nf6+ Kg7 Bf5 Qbb2 Ng4+ Ne5+ Kd5 Qb1 Bc5 Qbb2 Bg5 Qb1 Bd8 Qbb2 Bc7 Qb1 N4e3 Kf6 Ng4+ Kg5 Qb6 Qgd3 Qb8 Bf2 Qb7 Qdg3 Qb6 Qg7 f8N Qbb2 Ng6 Qb1 Qf3 Qbe4+ Kd6 Qb7 Qa5 Qg8 Qac3 Qh8 Qfd5 Qe8 Qe6 Qeb8 Qb2 Qf8+ Qe7+ Qf6+ Qe6 Nc6+ N6e5 Qg7 N2e3 Kh4 Ng2+ Kh3 Qd5 Ne7 Qdd4 Ng6 Qe7 Nf4+ Ng6 Nd3+ Qee5 Qf7 Qef4 Ne5 Qfe4 Qf8#
Q4n2/2Kpb1qQ/5n1N/r2P1BkN/R2b2r1/Bb6/1Rbq1qBB/Q2b3N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 a5 g4 f3 e4 h3 d4 a4 c4 f2 g5+ Kg6 b6 f5 c6 f4 c7 f3 b7 h2 e5 a3 c5 a2 e6 h4 e7 h3 Kd6 Bg7 d5 Bf8 c6 Ra5 Bg2 f1Q Ne2 f2 Ng3 Qd3 Nc3 f1Q Nce2 Na6 b8B Qf2 Nh5 Qd2 Neg3 Nc5 Ba3 Ba6 c8Q Bc4 c7 Ne6 Qa6 Nf6 c8Q Rg8 Qa8 Bb3 Qcc2+ Qf5 Rb1 a1B Rb2 Rg7 Rf1 h1B Rf4 h2 Ra4 Qe8 Qe4 Qf7 Qh4 Qff2 Qe1 Kh7 g6+ Kh6 Qb1 Rg8 g7 Qg6 Qhe4 Kg5 Qf1 Qh6 Qh7 Qg6 Ra2 Bc3 Rb2 Bd4 Qa1 Qh6 Be4 Bf3 Nh1 Bfd1 Bg2 Nf4 Kc7 Ng6 e8B Be7 Bf7 Nf8 Be6 Qg6 N1g3 h1B Bf5 Rh8 g8N Qg7 Nh6 Rg8 Bf3 Bg2 Nh1 Bf1 Bg2 Bd3 Kc8 Bd3c2 Bh2 Qf7 Kb7 Rg6 Kc7 Qg7 Bgh3 Kh4 Bf1 Rg4 Bg2 Kg5
RB3N1r/Q1Pr1NK1/Nq4R1/1Qb4n/B6R/q1pN3b/2q1kB1q/1r1q2n1 w - - 0 1 illegal: No proof kernel
1B4K1/1qprq2b/1Q3NB1/3Q2R1/r2NnN2/br3P1B/1NnQ1rr1/1kqR4 w - - 0 1 illegal: No possible last move
nB3k2/rqpQ1NnR/1nQ1RBB1/8/3K4/bbq1P3/nN3rqn/1N3Q1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 g4 f5 d4 a5 b4 f3 Ke3 h3 d6 f4+ Kd3 f2 e3 h4 d5 h2 b6 f3 b7 a4 g5 a3 b5 a2 b6 h3 g6 Ne7 g7 Ra7 g8N Nd7 b8Q Nf5 b7 Qf6 Nh6 Ng7 Qa8 Nb6 b8B Be6 Nf7 Qc3+ Ke4 Rg8 Bd3 f1N Ne2 f2 d7+ Ke7 Qb7 Na8 Bb2 Rh8 Qc6 Nd2+ Kf4 f1N Bg6 Nc4 Ke4 Rh5 Nc1 Rf5 Nd3 Rf2 Qc1 Ncb6 d6+ Kf6 Qe1 Bb3 d8Q+ Ke6 d7+ Bd6 Qb7 Ba3 Qh8 Ke7 Qh5 Kf8 d8Q+ Ne8 Qd7 Ng7 Rg1 h1Q+ Qf3 h2 Qbc6 Qc2 Bf6 Qg2 Kd4 h1Q Nb2 Nh2 Qf1 Qc1 Qh5 Qc2 Qa4 Qb7 Qac6 Qg2 Rh1 Qc1 Nd2 Qe1 Rc1 a1N Nb1 Qa5 Rc5 Qe1 Re5 Qc1 Re6 Nc2+ Kd3 Nb4+ Kd4 Na2 Qhf3 Ng4 Rh7 Nh2 Qh1 Qc2 Qe2 Qc1 Qef1 Qc3+
1b1K4/1QpR1q2/2Rn2b1/k1qNRQn1/6r1/1PR2qBN/B1qrB3/4n1qQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 g4 a4 d4 f3 e4 f4 b3 h3 d6 h2 g5 h4 b6 Kc6 g6 f2 b7 Kb6 g7 f3 d5 h3 d7 a3 Ke6 a2 d6 Nh6 g8Q Nc6 e5 Ne7 Qd5 Ra4 Qg2 Rg4 Bf4 Nf7 Nc3 Nf5 Bg3 Qg5 Re1 Qe3 Rc1 a1N b8Q+ Bb7 d8R Ng5+ Kd7 Nc2 Qf7 Ka5 e6 Be4 e7 Rhh4 Ba6 f1Q e8B f2 Nd5 Qfd3 Qb7 f1Q Qe6 Qef2 Bg6 Qdd2 Re8 Bg7 Bf4 Bd4 Bh7 Qde3 Bg3 Ba7 Qf7 Qed3 Re5 Qfe3 Qf3 Bb8 Kc8 Qdd2 d7 Qdd1 d8R Nd6+ Kd7 Qb6 Ke7 Bf5 Rd7 Rd4 Ne2 Rd2 Nef4 Qc6 Rg1 h1Q Be2 h2 Nh3 Rg4 Kd8 Qhg2 Qe4 h1Q Bg6 Qf4 Rf1 Qb6 Rf3 Qgg1 Re3 Ne1 Rc6 Qc1 Rec3 Qbc5 Qg2 Qff2 Qh2 Qhg2 Qh1 Bd3 Qe6 Qf7 Qf6 Qf3 Qf4 Bc4 Bb1 Qc2 Ba2 Bd3 Qf6 Bh7 Qf5 Bg6
4Q3/1P1n1Bnr/R4p1n/7Q/2N1Kq2/1R1BR2n/1Bbb1N1n/qR2brkN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 d4 Kf5 b4 c5 d6 h5 d5 a5 d7 f6 e3 h3 d6 c4 b6 h4 b7 c3 b5 c2 b6 h2 Nc3 h3 Nge2 a4 Ne4 a3 Nf2 a2 Bb2 Qc7 d8N c1B d7 Bd2 Nc6 Nh6 d8Q Nd7 b8R Rh7 Na5 Bfb4 g4+ Kg5 e4 Kh4 Rg1 h1N e5 h2 e6 Ng3 g5 h1N e7 Nh5 e8R Ng7 Ke4 f3 g6 Bbc3 Rb1 a1Q Nc4 Be1 b7 Bcd2 Rg3 Ra6 Ra8 Qf4+ Kd3 Ra5 Re3 Rh5 Qe8 Rf5 Ne4 f2 Ra6 Bc3 Rgf3 Bcd2 N2g3 Kg4 Be2 Kh3 Kd4 Kh2 Bd3 f1N Qe2+ Nf2 Nh1 Nh5 g7 Kg1 g8B Nh2 Bf7 Nh3 Qd1 Ng7 Qe2 Ne5 Kd5 Bd7 Nef2 Ba4 Qd1 Bc2 Qe2 Qg5 Ke4 Qh4+ Rf4 Qg3 Qh5 Nd7 Rh4 Qd6 Rg4+ Qg3 Rg5 Rf3 Rb5 Qg5 Rb3 Qg3 Nd1 Rf1 Ndf2 Qf4+
n1rQ2b1/P4RNb/2B4n/1N4Q1/k2Bq3/NrK1bQ2/p4RnB/2nq1n1Q w - - 0 1 illegal: No proof kernel
1nQ1bnBn/p4PR1/1n3Nqk/3N2bB/1K1BBRr1/1r4n1/3N1Qrq/3R4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kg7 c4 e5 b4 d5 f4 h5 f6+ Kh6 f5 d3 Kc3+ d2 b6 h3 f7 e4 c5 h4 b7 e3 c6 d4+ Kb3 e2 b5 e1N b6 d3 f6 h2 c7 h3 Nf3 Be7 f8R Nc2 Be2 Qd6 Qg1 Bd7 c8B Be8 Bb2 d1N Qf2 d2 Bd4 Nc3 Bf5 d1R Be4 Rg1 Nfd2 Na4 Nc3 Rg2 Rhd1 h1Q Nd5 h2 f7 Qg6 g5+ Kh7 Rf1 Qg1 Rfd1 h1N Bh5 Qh2 Rf1 Bd8 Rad1 Ne7 Rg8 Ng3 Kc4 Ne1 Kb4 Nf3 Qe3 Ne5 Rf4 Ned7 Qf2 Qf5 g6+ Kh6 g7 Ng6 Nf1 Ndf8 Nd2 Nbd7 b8Q Bg5 b7 Nab6 Qc7 Nb8 Qc8 Rh7 Bb2 Nh8 Bd4 Nb8d7 b8N Qg6 Na6 Rb8 Nf6 Rb7 Nc7 Nb8 Ncd5 Re7 Bd3 Re3 Be4 Ne6 Rf8 Ra3 g8B Rg7 Bh7 Rf3 Rg8 Nf8 Rf1 Qf5 Rd1 Rg6 Rg7 Rb3+ Ka5 Qe6 Bg8 Bh4 Nh7 Qf5 Nf6 Rg4 Qd8 Qg6 Qc8 Rf3 Kb4 Bg5 Ba1 Re3 Bd4 Rb3+
r7/k2rnRr1/2b1rBB1/2rQr1NN/1n1K1q1Q/1P2pQR1/1r6/bQR4N w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 c5 f4 Kc7 d4 Kb7 g4 e5 g5 h5 g6 a5 f5 a4 b3 h3 g7 a3 f6 h4 f7 h2 d6 c4 d5 h3 b6 c3 d7 a2 d6 c2 Bd3 Qf6 d8Q Rh5 d7 Nc6 Ne2 Nge7 g8N Bg7 f8R Nb4 Rf1 h1R Nd2 h2 Ng3 Rg1 Bb2 c1R Rf7 h1R Rf3 R1h2 Nh1 Rc5 Rc1 a1R Rg3 R1a7 Nf3 Rf2 Ba1 Rb2 Ng5 Kb8 b7 Qf5 Qc2 Qf4+ Ke2 e3 Nf6 Rh6 Nh5 Re6 Bg6 e4 Qh8 Rd1 d8Q Bc3 Qf6 Rd7 Qf5 Bf6 Qd5 Bd4 Kd1 Re5 Qb1 e2+ Ke1 Raa2 Qf8 Ka7 Qh8 Ra6 Qf8 Rae6 b8Q+ Ka6 Qh8 Bb7 Qbf8 Bc6 Qf6 Ka7 Qh6 Qg4 Qf3 Qf4 Qh8 Bc3+ Kf2 e1R+ Rc2 Bd2 Rc1 Rg1 Ke2 e3 Qd8 Na2 Kd3 Bb4 Ne4 Ba3 Kd4 Nb4 Qh8 Ra2 Bc3 Bb2 Qf6 Ba1 Qh4 Qf6 Ng5 Rb2 Rf1 Qf5 Rc1 Qf4+ Ne4 Na6 Rg5 Rb7 Bh7 Rf5 Kd3 Rd7 Bf6 Rfe5 Kd4 Qf5 Rg2 Nb4 Rgg7 Rg6 Rg8 Rh6 Rg3 Rg6 Ng5 Rg7 Bg6 Qf4+
Q1N1Qn2/P1kN1bn1/2B3nn/2R2r2/2q2p2/QR1nb1B1/BNrB2n1/3n2K1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 d4 g5 e4 c5 h4 b5 a4 f5 e5 b3 d6 b4 h6 f3 d5 c4 h5 b2 h7 b3 a5 f4 h6 g4 a6 c3 a7 c2 Na3 b1N Nc4 b2 Bg2 Nc3 Ra5 b1N Bd2 c1N Qa4+ Nb5 Nb2 Qc7 Rh3 Qc4 Qa3 Nc7 Rc5 Ne8 e6+ Kd8 d7 Ng7 Bf1 Nc3 Bd3 Be7 Bb1 Nd3+ Kf1 f2 Ba2 g3 Nf3 Ba6 Ne5 Nd1 Kg2 f1N Kg1 g2 Re3 Nc6 Rg3 Bd6 e7+ Kc7 e8B Rc8 d8N Nfe3 Nd7 Be5 Rh3 Bd4 Nf7 Bb5 Rg3 Ba4 Nd6 Bb3 Ra5 Nce5 Rc5+ Kd8 Rh3 Ng6 Rg3 Rc7 Nc8 Nf8 d6 Rc6 Ne5 Rc7 Bc6 Rf7 d7 Kc7 Rf3 Rf5 Rh3 Ne7 Rf3 Neg6 Rh3 Rg8 h8Q Ng4+ Re3 Ba4 h7 Nh6 Nb6 Bb3 d8B+ Kd6 Bh4 Kc7 Rd5 Bc5 Bg3 Bd4 Nc8 Bb6 Kh2 g1N Nd7 Nf3+ Kg2 Nfe1+ Kg1 Ng2 Rc5 Qa6 Rf3 Bf7 Re3 Qc4 Rf3 Nfe6 Re3 Rd8 Qe8 Nef8 h8Q N3f2 Rb3 Nd3 Ne5 Rd5 Nd7 Rde5 Nd6 Re2 Qa8 Rf2 Nc8 Re2 Bb4 Rc2 Qg8 Nh7 Qe8 Nhf8 Bd2 N3f2 Rcb5 Be3 Rc5 Nd3+
n4N2/qBQ1N2n/2bQRbb1/2B3k1/q2q1NN1/K6R/pB1rP3/Q4rqn w - - 0 1 illegal: No possible last move, all moves rejected
KNb1n1RB/2k1N2q/1r2Q2r/1nbb1R2/qRq3BQ/3n1NP1/4p3/2R2Q1q w - - 0 1 illegal: No possible last move
n4rq1/R3N3/Rr1BK2k/Q3NB2/Qb2q1q1/R2bPQr1/p2B1R2/qn4b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 Ke5 f5 b4 Kf7 d4 Kg6 g4 a4 g5 f3 d6 a3 b6 a2 d5 h3 b7 h4 d7 f4 d6 h2 b5 h3 b6 c4 Qd4 c3 Qb4 f2 Bd2 c2 Nc3 c1B Qa4 f3 Nd5 Ne7 Ke6 Na6 b8Q Rg8 Qb7 Rb8 Qbc6 Ba3 b7 Bb4 Re1 Kg7 g6 Qe8 Bg2 f1R e3 f2 Rc1 Kh6 g7 Qd8 Rc3 Nc7+ Ke5 Rb1 Nf3 f1Q Ra3 Na8 Ke6 Qd1 Rf1 h1Q Rf2 h2 Ne5 Qhf1 Be4 h1Q Bf5 Qg4 Nc7 Qd3 Qf3 Qde4 Nd5 Rb2 Rg2 Qa1 Rf2 Ng6 Ne7 Nf4+ Kf7 Nd5 Ke6 Rh8 g8R Nc3 Rg7 Nb1 Rf7 Rg8 Rg7 Qh3 Rf7 Rg3 Rg7 Qhg4 Rf7 Nb6 Rg7 Ra8 b8B Ba6 Rf7 Qe8 d8R Bd3 d7 Bg7 Bc7 Qg8 Bd6 Bf6 Re8 Bh4 d8Q Rc8 Qc7 Na8 Qca5 Rb8 Rf8 Rb6 Re8 Rc2 Rb8 Rc8 Rb7 Rf8 Ra7 Rg1 Ra6 Bg3 Qe8 Bh2 Qea4 Rg3 Ng6 Qh8 Rfa7 Bg1 Ne7 Qhg8+
N1R1Kn2/4n1rk/n5Nr/R2rQ1qR/1q6/1q1p3b/NbPQ4/B1N2BBn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kg7 Kc4 d5+ Kc5 h5 b4 a5 g4 d3 f4 a4 b6 d4 g5 a3 b5 a2 b7 h3 f6+ Kg6 f5+ Kh7 f7 h4 b6 h2 f6 h3 Ne2 d2 Nbc3 Ra7 Bb2 Na6+ Kc6 e5 b8Q e4 b7 e3 Nc1 e2 Qe5 e1Q b8N Bg7 Nd7 Ne7+ Kd6 Qg8 f8B Qb3 f7 d3 Qde2 d1Q Nb6 Qdd2 Na8 Ng6 Be7 Nf8 Kc6 Rd7 Bc5 Rd5 Bg1 Qh4 Qg2 Qhb4 Qf2 Qdf4 Qd2 Rg8 Be3 Bf6 Bg1 Rg7 g6+ Kh6 Rb1 a1N N3a2 Qg5 Bbd4 Q3a3 Bc3 Nb3 Ba1 Bg4 Qc7 Bb2 Qe5 Rh7 g7 Kg6 g8N Rg7 Ne7+ Kh7 Ng6 Bf5 Bb6 Nd4+ Kb7 Nfe6 Kc8 Nc6 f8R Qab3 Bg1 Bg4 Rf3 Nf8+ Rf5 Nd7 Rf8 Ne7+ Kd8 Be6 Rg8 Nf8+ Ke8 Q3c4 Qb8 Ba3 Rb3 Nd7 Kd8 Bb2 Ra3 Qcb3 Rf8 Bf5 Qe5 Bg4 Rf4 Nf8+ Ke8 Bc8 Rc4 Be6 Be3 Bg4 Rc8 Be6 Rg1 h1R Ra5 h2 Rg4 Rg1 Re4 Rg3 Bf2 h1N Bg1 Rh3 Rf4 Rh5 Rh4 Rh6 Rh5 Bh3
1k2b1Q1/NB3q2/2Q1nK1b/7N/n2nQ2B/1qP4r/p1R1RBN1/rqnQ1r2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 a5 Ke4 h5 b4 a4 g4 d3 f4 d6 f6 Kd7 Kf5 d2 f7 e4 c3 e3 g5 d5 g6 a3 g7 a2 b6 e2 b5 e1N b7 h3 b6 h2 Bg2 h4 Na3 h3 Nb5 d4 Ne2 d3 Ng3 Nf6 g8Q Nh5 Na7 Nc6 b8Q Qc7 b7 Bh6 f8B Ng7+ Kf6 Ne6 f5 Ncd4 Nh5 Qf4 Rg1 h1Q Bc5 h2 Qe5 Rb8 Qd5+ Kc7 Qe4 Bd7 Rb1 Rh7 Rb2 Be8 Rc2 Ra8 Rf1 Kb8 Rf2 Qc7 Re2 Qf7+ Ke5 Qf1 f6 h1R B1a3 Rh3 Bb6 Rg7 Be7 Rgg3 Qgg6 Rh1 Qc6 Rgh3 Qge4 Qg1 Nc8 Ra4 Na7 Rb4 Bed8 Rb1 Bf3 Ra1 Be7 Nb3 Bf2 Nc1 Bg2 Nf3+ Kf5 Qg8 f7 Nfd4+ Kf6 Qh7 f8N Qf7+ Ke5 Qe1 Beh4 Qg1 Bf3 Qgg8 Bg2 Rf1 Ng6 Qgh7 Ngf4 Qhg6 Qe1 d1N Bh1 d2 Ng2 Nb2 Qd1 Qe7 Qcd5 Qeh7 Qc6 Qgg8 Kf6 Na4 Ngf4 Qd7 Ng2 Qdf7+ Ke5 Qe7 Qd3 Qa3 Qcb5 Nf4 Ne3 Qgf8 Qe1 d1Q Bg2 Qg8 Kf6 Ncb3 Qb6 Qdc1 Qed1 Qb1 Bc6 Qc4 Ng2 Nc1 Qe4 Qab3 Bd5 Qc7 Qbe6 Qh7 Qg8 Kc7 b8Q+ Kd7 Qb5+ Kc7 Bc6 Nfe6 Bb7 Kb8 Qbc6 Qf7+
r1n2Q2/nN1qQ1Kq/2r5/3N1B2/4N2q/BPN1q1bB/b2p1RR1/1Qr1k2n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 d5 c4 e5 f4 a5 b6 d3 f6 d4 b7 d2 c5 Ke3 f7 Kf2 g5 h3 g6 e4 g7 h2 f5 e3 c6 d3 c7 a4 f6 e2 Nf3 e1Q Qb3 d1Q Qa2 a3 Nc3 d2 Rg1 h1N Qb1 a2 Bh3 Be6 c8B Nc6 b8N Na7 Na6 Ne7 Kh6 Qe3+ Ng5 Qd7 Rg2+ Ke1 Nc5 Bd5 Nb7 Q1a4 Qe4 Qb4 Rb1 a1R Qf5 Ba2 b3 Qg4 Ba3+ Qd1 Rb2 Rc1 Rb1 Qdf3 Ra1 Qfd5 Qb1 Qdc5 Kh5 Qb4 g8N Bh6 Nge4 Bf4 f8Q Bg3 f7 h6 Ngf6 Rg8 Nf2 Rg6 Nfd5 Rc6 Qg7 Qbe4 f8Q Q4d4 Na5 Qb4 Nfe4 Qb5 Ba6 Nec8 Qge7 Qbc5 Bd3 Qb4 Nef6 Qh4+ Kg6 h5 Bc2 Qc4 Kh7 h4 Bcf5 Qce2 Kg7 Qh5 Bhg4 h3 Nfe4 h2 Bh3 Nf2 Nb7 h1Q Nc7 Qh2 N7d5 Nh1 Qc2 Rb1 Bhg4 Q2h4 Bh3 Rd1 Rc1 Kf1 Qb1 Qf2 Ne2 Qe1 Rc3 Rc1 Rf3+ Qf2 N2c3 Ke1 Rf4 Qe3 Rff2 Qh7+
1nB2bQB/4Q3/N1Bn4/R1qb1KbR/1QB5/P1rNp2n/1R3bq1/3kr2r w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kd4 g6 h5 g5 b5 d6 c5 g7 b3 d7 e5+ Kf5 e3 f4 e2 g6 Kd3 Qe1 Kc2 d4 b4 d5 c4 d6 e4 Nc3 h4 Nb5 b2 Nh3 b1R Nc7 c3 Bg2 b3 Bb2 Ra3 Na6 Qe7 Nf2 h3 Nd3 Nf6 g8B h2 g7 Bb7 d8R Ne8 d7 Bd5 Be6 Qc5 g8B Rh6 Qh4 e1B Qe7 Kd1 Rc8 c2 d8Q c1B Bh8 b2 Qa5 e3 Qb4 Rc3 a3 Rh3 Ra2 Ra1 Bd7 b1Q Rb2 Qa2 Rc6 Bd2 Bc8 Bh6 Rb6 Bg5 Rb5 Rb1 Ra5 Nd6+ Kg4 Ra1 f5 Rac1 f6 Rh7 Bf1 Bf2 f7 Ra1 f8Q Rh3 Rg1 h1N Bg2+ Bfe1 Qbf4 Be4 Nc1 Qc7 Nb4 Nf7 Nc2 Rc5 Qe6 Bb4 Nd3 Kd2 Rb1 Rc3 Qg6 Ba8 Kf5 Nf2 Rh1 Qb6 Qfg7 Bf8 Ncb4 Qc5+ Bd5 Rh4 Na6 Kc2 Qb4 Nd6+ Ke6 Rh5 Qe7 Rh6 Bc4 Bg2 Bf7 Bd5+ Ke5 Rh7 Be8 Kd2 Qg8 Rh5 Rh2 Rh7 Rg2 Rh1 Rh2 Qc2 Rh7 Nh3 Bc6 Beh4 Rb3 Rae1 Rb2 Kd1 Rh6 Qg2 Rh5 Nb7 Kf5 Bg3 B6b5 Bf2 Bc6 Nd6+
QK2Q1N1/1n6/1r4qb/2B2Rqn/3RPNp1/5BQ1/2k1rN1R/qqn1rb1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 h4 Kc5 b4+ Kd4 h5 g5 d6 a5 h6 f5 b6 c5 d7 c4 b7 g3+ Kf3 g2 b5 a4 b6 c3 h7 a3 Qa4+ Bb4 Ne2+ Kd3 Ng3+ Kd4 Be2 g1Q Rh2 a2 Ba3 c2 Nh1 c1N Nc3 Qe8 d8N Na6 b8N Qe7 b7 Nc5 Nd7 Ra7 b8Q Ba6 Nf6 Rb7 Qe8 Rb6 Nd1 Nb7 Ndf2 Qe6 d3 Kc3 d4 Bf8 d5 Kc2 d6 Bh6 d7 Qf7 Bc5 Qg6 Rb1 a1Q Ne6 Bd3 d8R Bc4 N6g4 Nf6 Rb5 Nh5 Nf6 Rf8 h8Q Rf7 Qc8 Rd7 Qc7 Rd2 Rd4 Bd3 Bf1 Re2 Bg2 Qa7 Nh3 Qa1 Qa8 Nb3 Qhg8 Rd2 Qge8 Qgb1 Qd6 Nc1 Ng8 Bc4 Ba3 Be2+ Kf2 f3 Ke3 f2 Qdb8 f1R Qg3 Re1 Rbd5 Rc6 Bc5 Rb6 Re5 Bb5+ Kf3 f4 Kg4 Qg7 Kf5 g4 Red5 f3 Re5 f2 Bf3 Na2 Red5 Qg6+ Ke5 f1Q N3f2 Qe2 Qc6 Nd8 Kd6 Nc1 Kc7 Qe3 Rf5 Qeg5 Qe8 Nb7 Nf4 Bf1 Kb8 Rde2
2N2q2/r2qRbB1/BQKBnn1Q/1r2b1Rq/1R2Pp2/5rN1/k1B1Q3/2qb4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 a5 g6 a4 g7 a3 b6 h3 d6 h2 d7 a2 b5 f3 d5 f2 d6 f6 b7 h4 b6 h3 Nc3 Ra3 Bh6 Na6 b8B Nc7 b7 Ne6 Na4 Rf3 Nb6+ Kb4 Kd5 Ka3 e4 f5 Kc6 c4 Bd3 f1Q Qe2 c3 Ba6 Nf6 g8B c2 Bg7 Rh5 Bc7 Qf2 b8R f4 Rb1 a1R Rb5 Ka2 Rg5 Be7 Rb7 Qh4 Rb8 Qf8 d8Q Bd7+ Kb7 Be8 d7 Bb4 Nc8 Bf7 Kc6 Bc3 Bd6 Bd4 Rb4 Be5 Rg6 Rf5 Qb6 Rg5 d8Q Rh5 Qd3 Qg5 Ne2 c1Q+ Qc5 Qh4 Ng3 Rg5 Rd1 h1B Qb6 h2 Qe3 Rh5 Rg5 Bg2 Rd3 h1Q Rdb3 Qhd1 Qe2+ Qdd2 Rc3 Bh3 Qg1 Bg4 Qh1 Qh2 Rg6 Rf5 Rg5 Qh7 Qh6 Qg6 Bd3 Qh5 Bc2 Qd3 Bb8 Qdd8 Bd6 Rb1 Rc5 Rbb3 Ra5+ Ra3 Ra7 Ra4 Re7 Ra7 Rb1 Ba1 Rb4 Rb5 Bh7 Be5 Bg6 Rb3 Bf5 Bf3 Bh3 Bg4 Bf1 Bf3 Qef2 Bd1 Be2 Rf3 Qe1 Rd5 Ba6 Rb5 Qe2 Qd7+
4Q2R/1n3R1N/kNr4n/N6b/1QPn1r2/R1b2B1K/2q1np2/2qBBbBq w - - 0 1 illegal: No possible last move, all moves rejected
N1BBq3/1Qn1RQ1q/1Q1B4/N1q3bK/1nP1p3/1nr3N1/2bq1r1k/4rR1N w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 c4 a5 b4 d5 b6 d3 b5 a4 b7 a3 b6 d4 Nd2 h3 Qf3 a2 Ne2 h2 Ne4 d2 N2g3 d1R Kh5 d3 f6 d2 f7 Nc6 b8N Ra3 b7 Bh6 f8N Nb4 Ne6 Bg5 Nc7 Rc3 Na8 Re1 Rg1 d1Q Nh1 h6 g4 Q1d2 Bh3 Bf5 Neg3 Bc2 Rf1 Qe8+ Qf7 e6 f3 Ne7 f4+ Kd4 f5 Ke5 f6 Ned5 Qg6 Rf8 f7 Nc7 Rb1 a1N Nc6+ Kd6 b8B Nb3 Na5 Ke5 Ra1 Qd3 Be3 Qd2 Bf2 Kf4 Bb6+ Qf2 Rd1 e5 Rd7 e4 Re7 Kf3 Bd4 Kf4 Qb6 Kf3 Bf6 Kf4 Kg6 h5 Qb7 h4 Kh5 Bh6 g5 Kf3 g6 Bg5 Be6 Kg2 g7 h3 g8Q Qc5 Rf4 Kg1 Qg6 Kg2 Bc8 Kg1 Nf2 h1Q Rf3 Qh2 Nfh1 Qd2 Rf1+ Kh2 Qh6 Nca6 Bd6 Nc7 Qg6 Rg8 f8Q Rg7 Re5 Rf7 Bd8 Rf2 Re7 Kg2 Qff7 h2 Nf5 Kh3 Nhg3 h1Q Qge6 Qg1 Nh1 Qh2 Nfg3+ Kg2+ Kg6 Qh3 Qf6 Qhf5+ Kh5 Kh2 Qd4 Qcc6 Qda7 Qcc5 Qab6 Qh7+
2NRN1kB/1Q6/1Br1rrqb/q2bB1n1/qnp1r1K1/4R1n1/5P1Q/3B1QR1 w - - 0 1 illegal: No possible last move, all moves rejected
3k4/1n5q/4RrrB/1NRNnQ1N/1Pb5/bQ3rQQ/qn1qqBKp/3B4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 g4 f5 d4 c5 e4 a5 e5 f3 b6 a4 e6 f4 g5 h3 e7 a3 d6 h2 b7 h4 g6 c4 d5 c3 g7 c2 Nh3 a2 Na3 Nf6 g8N Be6 Nb5 Nc6 b8Q Rh6 Be2 Nd7 Re1 h1Q b3 Nc5 d7+ Kf7 d6 Rg6 Qc7 Ne5 Nf6 Bc4 Nd5 Nb7 Qc5 Qa5 d8B Ke8 Bb6 Qd2 Qe3 Ra6 d7+ Kf7 Ba7 Raf6 d8Q Qh2+ Kf1 f2 Qa5 Ke8 Qg3 Kd7 Rb1 a1Q Rb2 Qa2 b4 Bh6 Rb3 Ke8 Rc3 Bg7 Ba3 c1N Qb3 Ncd3 Bc1 Bh6 Bd1 Nb2+ Re2 Bg7 Qa6 Bh6 Qe6 Bg5 Qf5 Qh1+ Ng1 h3 Be3 h2 Bd4 Qe4 Nh3 Qec2 Kg2 f1R Bg1 Rf3 Bf2 Nd7 Re6 Ne5 Ng1 Bh6 Ne2 Bg7 Qh3 Qf5 Rc2 Qh5 Qf5 Qh7 Rc3 Kd7 Qh3 Kc8 e8Q+ Nd8 Qd7+ Kb8 Re3 Bh6 Nd6 Qd4 Rc3 Na4 Re3 Nb7 Re4 Ng4 Nb6 Rc3 Qb5 Kc7 Bce3 Kd8 Be1 Qd3 Qf5 f3+ Kf1 f2 Nb5 Qd6 Kg2 Qd5 Bf4 Rf3 R4e5 Qd4 Rc5 Ne5 Nd5 Bg5 Bfd2 Qd3 Bc3 Bc1 Nef4 Ba3 Nh5 Nb2 Bcd2 Qc2 Bh6 Qc1 Bc3 Qg5 Bd4 Qd2 Kh1 f1Q+ Bg1 Qfd3 Bf2 Q2e2 Kg2 Qdd2
5r1Q/2NR3n/1n2n2q/bqNBb3/QPN1b3/1r4BQ/N1R3pq/3bKB1k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 Kd6 e4 f5 b3 c5 b6 a5 h5 g5 h6 f3 b7 f2+ Ke2 a4 h7 g3 Be3 a3 Kd2 c4 Qe1 a2 Qd1 g2 Qc1 c3+ Ke2 c2 Rh4 g4 Nd2 f4 Qd1 c1Q Rh2 Nd7 b8N g3 Na6 Qh4 Nc5 Ra3 b4 Bb7 Qb3 Bg7 Qa4 Be5 Rb1 a1N Nc4+ Ke7 d6+ Kf6 d5 Kg5 Bd2 Kg4 Be1 Nb6 d7 Nb3 d8Q Nf6 d6 Rf8 h8Q Nh7 d7 Bd5 Qc8 f3+ Kd3 Qcg5 Rd1 Qgh6 Ne2 g1B Nc3 Nd4 d8N+ Ne6 Rg2 Kf4 Kd2 Rb3 Na2 Qh2 Qcd7 Bb8 e5 Be4 Nc6 Bc7 Nb8 Bd8 Qd3 Kg4+ Qe3 Kh3 Nba6 Bf6 Nc7 Bd8 Bd3 f1B Bf2 Bf6 Ke1 Be2 Rd2 Bd1 Bf1 Bd8 Rd7 Bf6 Qc3 Bg7 Be3 Bf6 Rc2+ g2 Bf4 Bd4 Bg3 Bd8 Qe3 f2+ Kd2 Nf4 e6 Be5 e7 Ne6 e8B Na8 Bd3 f1Q Bf7 Nb6 Bg8 Qf5 Bf1 Qfh5 Ke1 Qe8 Re7 Qb5 Rd7 Qg1 Bh4+ Kh2 Bg3+ Kh1 Qf3 Qgh2 Qf5 Nd4 Bd5 Ne6 Qh3 Na8 Ne8 Ba5 Nc7 Nb6
4qBNQ/3rq3/4RqN1/1kr1N3/1P2Bn1B/nrq2Qp1/N4bK1/Qbn2R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 b6 a4 b7 a3 d6 Kc6 d7 g3+ Ke3 g2 Kf2 c4 d5+ Kb5 e6 g4 h5 g3+ Ke3 a2 e7 f4+ Ke4 f2 Kf3 Ra3+ Bd3 Nc6 e8N Bc5 b8N Nge7 d6 Rb3 h6 Nd5 h7 Qe7 d8Q Bf5 d7 Na7 Ne2 g1Q Nc6 Qe1 Rh6 f1R+ Kg2 Bf2 Be4 c3 Nf6 c2 Qa8 Rc8 Ne5 Rc5 d8B Qc3 Bd2 c1N h8Q Bh7 Ng8 f3+ Kh3 Rg1 Nf4 Qe3 Nfg6 Nf4+ Kg4 Qe8 Bh4 Re1 Qd5 Re2 Bc3 Rd2 Qa8 Qe1 Bb2 Rd7 Nc3+ Ka6 Rb1 a1Q Na2 Kb5 Bd4 Qac3 Be3 Rc4 Bc5 Qe2 Bf8 Rc5 N6e7 Qee1 Re6 Bg6 Bb7 Be4 N7g6 Qe7 Ra1 Bb1 Qd5 Qe4 Qd1 Qc6 Qh1 Qc8 Be4 Qce8 Qd5 Nc6 Qhd1 Nd4 Qa8 Nc2 Qd4 Nd5 Kh3 Na3 Qd1 Bd4 Qa7 f2 Qf3 f1Q+ Qg2 Qfc4 Qf3 Bf2 Kg2 Nf4+ Kh1 Q4d4 Nf7 Nce2 Nc1 Qdf6 Nfe5 Bc2 Rb1 Nc4 Qa1 Bd3 Na2 Na3 Rg1 Nc1 Rf1 Be1 Kg1 Bc2 Kh1 Bb1 Kg1 Bf2+ Kh1 Nd5 Kg2 Nf4+
1b4q1/5Q1B/RN2brQ1/B4r2/1PqB3K/1bpb1nNN/1k3BRq/4nnQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 d3 a4 g6 f3 g7 c4 d7 f4 b7 a3 e6 a2 e7 h3 e8Q h2 Qg6 h4 Qh5 h3 Nc3 Ne7 g8Q Nd5 Qe1 Bd6 Ne4 Ne3 Qe2 Ra6 Nc5 Kc3 d4 Ng2 d5 Ne1 Qe7 Nc6 b8N Ne5 Be3 Kb2 Qhg6 c3 Bd3 Rh5 Ne4 Rf5 Ng3 Bc7 Bc5 Raf6 d6 Qe8 d8B Be6 Nd7 Bb8 Q8f7 Qg8 Nb6 Bb3 d7 Be6 Rc1 a1Q Bd4 Qa2 Qc5 Qb3 Ra1 Qc4 Kf1 f2 Ra6 N5f3 Bc7 Qh7 d8B Qg8 Ke2 f1B+ Kf2 Nd2 Be4 f3 Bf4 Bd3 Bfe3 Re5 N1e2 Rd5 Rg1 h1Q Rg2 h2 Nf4 Rdf5 Bc7 Rd5 Nh3 Rdf5 Ne2 Qg1+ Kg3 h1B Kh4 f2 Ng3 f1N Bf2 Qh2 Qh6 Rg5 Bh7 Rd5 Qhg6 Rdf5 Rg1 Bf3 Rg2 Bh5 Nc8 Bg4 Ba5 Bd1 Nb6 Ndf3+ Kg4 Qf8 Qce7 Kb1 Bg1 Bd5 Qe3 Bb3 Qf2 Be6 Qe3 Ne5+ Kh4 Qg8 Qf2 Nd2 Qf1 Kb2 Bf2 N5f3+ Kg4 Ng5 Qg1 Nf1 Kh4 Ngf3+
r7/BqR5/Rr2r1NN/B3q1Qb/kPNnnp1r/bN1q3R/7Q/b3KB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 g4 a5 d6 c5 e5 f5 b3 f3 d5 a4 b6 h3 b7 a3 g5 h2 g6 h4 g7 f2+ Ke2 h3 Nd2 f4 Ngf3 a2 Qc2 c4 Nh4 c3 Ng6 Nc6 b8R Qc7 Rb7 Nf6 g8N Ne4 Nh6 Nd4+ Kd1 Ra6 Bb2 Rb6 e6+ Kd8 d7 Ba3 b4 Qe5 Nb3 Rf8 Rc1 a1B Ra7 Rh8 Ra4 Kc7 d6+ Kc6 d8B Rf8 e7 Bg4+ Qe2 Bh5 e8N Rf6 d7 Re6 Rg1 h1Q Ra6 h2 Nd6 Qf3 Nc4 Kb5 Rg3 h1R Rh3 Qg2 Bc7 Rh2 d8Q Qh1 Rd3 Rh4 Rh3 Qf3 Qg5 Qg2 Nba5 Ka4 Rc2 Nd6 Bc1 Qb7 Be3 Ne4 Rc1 Nf3 Qd2 c2+ Ke2 Rb5 Ba7 Rbb6 Rb1 c1R Nb3+ Qa5 Qc2 Rd1 Qb2 Rd8 Rd1 Ra8 Rd7 Rg4 Bd8 Nd4+ Kd1 Nc5 Rc7 Rh4+ Be2 f1Q+ Kd2 Qfg2 Ke1 Ne4 Bf1 Qf3 Qf2 Qd3 Qh2 Rbc6 Rb6 Qe5 Ra6+ Kb5 Rh7 Rcd6 Ba5 Rb6 Rc7 Ka4
5QR1/B3N1b1/2q5/N1rrn2n/1pQ1QqNq/3r1N1K/r1B1b1PB/2R2n1k w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 Kf6 f4 h5 Kf2 c5 d6 e5 d5 b5 a5 c4 a6 c3 d7 e4 d6 h3 Kg3 h4+ Kg4 b3 a7 b2 Qe2 e3 Qd3 h2 Qe4 h3 Qf3 e2 Be3 e1Q Na3 b1R Nc2 b4 Qd5 Qc1 Qc4 Qb6 d8N Ba6 d7 Rh5 Nf3 Qc6 Bd3 Bg7 Nb7 Rb3 d8N Nd7 Na5 Ne5+ Kg3 Qd2 Rhc1 h1Q Bd4 h2 Ne3 Rg5+ Kh3 c2 Be4 Rd3 Ng4+ Ke7 f6+ Kd6 f5 Qf4 f7 Nf6 Bb6 Nh5 f6 Qe1 Bg1 h1N Bh2 N1g3 Bg6 Nf1 f8B+ Kc7 f7 Qf2 Rcb1 c1R Bc5 Bb5 Bb6+ Kd6 Ra3 Rcd1 Rc1 Rd5 Bc2 R1d3 Ndb7+ Ke6 Nd8+ Kf5 Ra2 Q2d4 f8Q+ Ke4 Nf7 Rf5 Nfh6 Rc5 Ng8 Rg5 N4f6+ Ke3 Ne7 Kf2 Ra3 Nf7 Ra4 Rgd5 Raa1 Ne5 Ra4 Rad8 a8Q Ra3 Ba7 Ra2 Qb3 Be2 Qc4 Qde4 Ra3 Qh7 Re3 Rd3 Qb7 R8d5 Re4 Qg5 Rg4 Qf4 Qba8 Qhh6 Qae8 Qhg5 Qg6 Qh6 Qge4 Qhg5 Nfg8 Bf6 Nh6 Bh8 Nhf5 Qgf6 Rg8 Bg7 Ne3 Q6g5 Nh4 Qgf6 Bg3+ Kg1 Ng4 Kh1 Nf3 Q6g5 Bh2 Qh4+
R1R2rbK/2n1r1Q1/r3k2n/2qNb3/rp1b1n2/QQ1RB2q/1NP5/3B1BB1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 e5 Kg4 g5 a4 d5 h4 b5 f4 b3 h6 e4 Kh5 d3 a5 g4 a6 b2 h7 d2 f6 e3 a7 d4 f5 g3 Na3 b1Q Nh3 g2 Nf4 g1B Nc4 d3 Qf3 d1R Rh3 e2 Nd5 e1N Be3 d2 Nb2 Ke8 Kg6 Kd7 h5 Nh6 f7 Qc7 f6 Bg7 f8Q Ng2 f7 Na6 Qa3 b4 f8B Re1 Bfc5 Rf8 h8Q d1R Kh7 Be5 Qg7+ Ke6 Bcd4 Qc5 Qfg3 Nf5 h6 Nf4 Qf3 Nc7 Qb3 Rb8 a8B Rb6 Bc6 Bb7 Ra8 Ra6 Bcb5 Qa2 Bbe2 Ra1 Bd1 Qa4 Qfg3 Qd7 Rc8 R1a4 Qf3 Rf6 Kh8 Bc6 h7 Nh6 Bf2 Bb5 Bde3 Bc4 Qa3 Bh2 Bg1 Bd4 Bef2 Rf7 Qfb3 Re7 Rd3 Re5 Qba2 Rf5 Q2b3 Rf6 Be3 Bg3 Rg8 Rf8 Qba2 Kf5 Nc3 Ne2 Bc1 Rd8 Bce3 Ree6 Q2b3 Nb5 Re8 Re5 Qe7 Bg8 Kg7 Rc8 Nd5 Ree6+ Nf6 Bge5 Qf7 Nf4 h8R Re7 Rd8 Bh7 Rhg8 Rca8 Kh8 Nc7 Qg7 Rc8 Rge8 Bg8 Nd5 Qdc6 Nb6 Qf3 Nd5 Rca8 Rb8 Qh3 Rbd8 Rf6 Rf8 R8a6 Ra8 Ke6 Rfc8 Rf8
2b4b/r2RqqN1/3b1Q2/4r3/1pNkBNn1/2N3B1/1Pq2r1Q/QqRBn2K w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 f4 Kd7 Kf2 Kd6 g4 Kc5 Kg2 h5 f6 e5 d3 b5 g5 a5 f7 b4 f5 a4 g6 a3 f6 h3+ Kh2 h4 d6 e4 d7 e3 g7 e2 Bf4 e1B Ne2 Ra7 Bg3 Nh6 g8B Nc1 Nec3 a2 Nd2 Bd6 f8Q Qe7 d8Q Kd4 f7 c5 Be2 c4 Bh7 Ng4+ Kg1 Ra5 Qc7 Re5 Be4 h2+ Kg2 Rhh5 Qa4 Rh6 Bd1 Rf6 Qh6 Bf2 f8N Bg1 Rb1 a1R Ng6 Ra2 Qa8 Ra7 Nf4 Rf7 Qf6 h3+ Kf1 Be3 Rg1 h1Q Ra1 Nb3 Rc1 h2 Qcb8 Nc5 Qc7 Rb7 Qa1 Ra7 Qb8 Bf2 Qc7 Qf3 Rg2 Ke3 d4 Nd3 d5 h1Q+ Rg1 Ne1 Qb8 Bc7 d6 Kd4 d7 Bd6 d8N Qh7 Rh1 Rf8 Rh3 Qhf7 Rh7 Qd3+ Be2 Qb1 Bd1 Nc2 Kg2 Ne1+ Kh1 Be3 Na4 c3 Nc4 c2 Nc3 Bd2 Nh3 Bh6 Nf4 Bg7 Qc7 Bh8 Rg7 Qee8 Rh7 Qd5 Rd7 Qdf7 Na5 Qee7 Nde6+ Ke3 Ng7 Kd4 Qb8 Qba2 Rb1 c1Q Nc4 Qc2 Rc1 Qab1 Qh6 Ba6 Qd8 Bc8 Qh2 Qee8 Qf6 Qfe7 Qfh6 Rff5 Qf6 Q8f7 Nd3 Rf3 Nf4 Rf2
2q2R2/1qQ2r1r/BnR2b1k/K2B1R2/1p3RP1/BQn1r2b/N2nq1q1/1Q2N3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 Kg7 a4 b5 f4 h5 f6+ Kh6 a5 c5 a6 e5 a7 b3 Kc3 c4 d6 h3 Kb4 b2 g3 e4 f7 c3 d5 h4 f5+ e3 f6 h2 Ra6 c2 Nf3 h3 Rc6 Qe7 Bc4 Bg7 f8R Rh7 f7 Nf6 Ne1 Ne4 Nc3 b1N Rf1 h1Q Rf4 e2 Na2 h2 Ba3 c1Q Qb3 Bf6 Ka5 b4 d7 Nbd2 d8Q Qg2 d6 h1Q d7 Nc3 Qc7 Qc2 d8Q Bh3 g4 Nd7 Bb5 Nb6 Qd3 Qe6 Ba6 Qc8 Qe4 Rb8 a8B Rb7 Rf5 Qd1 Qeb1 Qc2 Nf3 e1R Rf4 Re4 Ne1 Re3 Rc5 Bg5 Rd8 Nde4 Qd6+ Bf6 f8R Qgg1 Rcf5 Rbf7 Qc7 Qe2 Rd6 Nd2 Re6 Qg3 Bg2 Qgf3 Rd6 Qfb7 Rc6 Qh2 Bd5 Qhg2
nRqr4/4n1N1/2b1B3/2k1B2Q/1p1bPr1q/N1rq3q/n4RBQ/N1Q1B2K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 b3 Kg2 Kd7 h4 Kd6 d4 f5 a4 b5 e4 g5 h6 c5 h7 b2 a5 g4 h5 c4 a6 b4 h6 g3 a7 c3 Bd2 c2 Nf3 c1N Ra2 Nf6 Ne1 Nfd7 Nc2 Bg7 Nba3 b1Q Na1 Bb7 Be1 f3+ Kg1 Rf8 h8B f4 h7 g2 Rc2 Na2 Qc1 f2+ Kh2 Ke7 d6+ Ke6 Rd2 Nb6 d7 Kd6 d5 g1R Rc2 Qg5 d8N f3 Ne6 Rf4 Rd2 Rg3 Bg2 Qb3 Rc2 Bf6 Bg7 Be5 h8Q Bb2 Qh4 f1Q Rc8 Qa6 Rf1 Qe3 Bgc3 Qd2 Ng7 Nc6 Kh1 Ne7 Qh2 Bc6 Rh8 Kc5 d6 Qc2 d7 Qh4 d8Q Qb7 Be5 f2 Bh3 Rc8 Qdd1 Bd4 Qh5 Rc3 Rg8 Qd3 a8B Bb5 Rh8 Qa6 Bc6 Na8 Bcd7 Bc6 Bde6 Rg8 Bhg4 Qdh3 Bf3 Rc8 Bg2 Rcf8 Rg1 f1Q Rg8 Qfd3 Rf1 Rc8 Rf2 Qb7 Rd8 Qc7 Rd7 Qb8 Rb7 Rd8 Rb6 Qc7 Rb8 Qc8
2Q2Nr1/1QR1K3/8/1Rn2bNP/Qr1kq2R/1b1Nq3/1bB1pnQB/q1br4 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 b4 e5 h4 g3 f4 d6 c4 g2 h5 e4 c5 a4 c6 g4 c7 a3 b6 e3 b5 g3 b7 a2 b6 d3 Nf3 g1B Na3 g2 Ng5 d2 Bd3 e2 Rh4 Na6 b8Q Bg7 b7 Qe8 Nc2 Be3 Ne1 g1Q Bc2 Nc5 Nd3 Ra4 Rb1 a1Q Rb5 Qf2 Qa8 Nh6 b8Q Rg8 Qbb7 Rb4 Qh1 d1B Qa4 Qe7 Qg2 Ng4 Kc6 Be6 c8R d5 Rc7 d4 Bb2 Qe8+ Kd6 Bc1 Bc3 Bd7 Be1 Qf3 Bg3 Nf2 Bh2 Qee4 Ne6 Kf7 f6 Qfe3 f5 Bh8 Nb2 d3 Ng5+ Kf8 f7 Kg7 f8N d2 Nd3 Kf6 Bb1 Bb3 Bc2 d1R Qb8 Kg7 f6+ Kh6 f7 Kg7 Qb7 Kf6 Qg4 Bde6 Qg2 Kf5 Ke7 Bhb2 Nf4 Ke5 Nd3+ Kd4 Nd7 Re1 f8Q Rf1 Qfc8 Rd1 Nf8 Bf5+
2rq4/1b5R/Q1n2RQ1/n1b1N1BP/r4NrB/2q1R1Rb/Bp4rN/3kn1K1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 Kf2 Kd6 d4 e5 a4 c5 h4 b5 a5 g5 a6 e4 a7 b3 f6 b4 f7 c4 f5 b2 f6 b3 Qc2 c3 Ra3 Nc6 Bc4 Nge7 Ne2 e3+ Kg1 g3 Nd2 b1B Nf3 g2 Nh2 g4 Qg6 c2 Nf4 b2 Ba2 e2 Re3 Bb7 h5 Rc8 a8Q Na5 Qa6+ Nec6 Bd2 Be7 f8R e1N Rf7 c1Q Rh7 Bf5 f7+ Be6 f8R Qc3 Rf6 Rg8 Kf2 g1R Bc1 Rg3 Rg1 Rg2+ Kf1 g3 Bd2 Kd7 d6 Bh3 d5 Rg7 Qc2 Rg5 Qg6 Rg4 Bc1 Rd2+ Rg2 Rd4 Kg1 Ra4 Rge2 g2 Rg3 Qe8 Ree3 Qf8 Kf2 g1R Bd2 Kd8 d7 Kc7 d8N Rg2+ Kf1 Qe8 Nf7 Bc5 Bc1 Qd8 d6+ Kb8 d7 Kc7 Qc4 Kb6 Ne5 Rh4 Qe6 Kb5 Bd2 Kb4 Qc4+ Ka3 Qa6 Rg4 Bc1 Qc7 d8B Qd6 Rf5 Kb4 Bh4 Qd8 Rf6 Ka3 Bb1 Kb3 Bd2 Nd3 Ba2+ Kc2 Bc1 Kd1 Bd2 Rf2+ Kg1 Rg2+ Kh1 Nc1 Ne2 Qc4 Rb3 Qf7 Bdg5 Nd3 Nf4 Ne1 Rbc3 Qc4 Rce3 Rf2 Kg1 Qc3 Qf5 Re2 Qg6 Rg2+
1rB2RQ1/1RQr1b2/1n3B1K/1nb2n1P/1bBN4/1QN2pb1/qQ3q2/1r3N1k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 g5 b6 a5 b7 a4 b5 c4 b6 c3 h5 f3 Ke3 f4+ Kd3 g3 Rh3 g4 Rh2 f2 Nd2 c2 Ne2 g2 Rb1 g1N Nc3 a3 Bb2 c1B Qb3 Nd7 b8N g3 b7 g2 Nc6 a2 b8Q+ Qc7 Be2 a1R Nf1 R8a7 Q8b5 Qa5 e5+ Kc7 Ke4 f3 Kf5 Bf4 Kg6 Bg3 e6 Kd6 e7 Nb6 e8B Rd7 Rh4 Nh6 Bc4 Qa2 Rf4 Nf5 Bf7 Ne2 Be6 g1B Kg5 Rd8 Bd7 Ba6 Bc8 Rd7 Q5b4+ Kc7 Q4a3 Bb4 Kg6 Kd6 Kg5 Ne7 Rf8 Rg8+ Kh6 Bb5 Re1 Rb1 Ba1 Ba4 Qbb2 Bc2 Qab3 Bg6 Rd1 Bf7 Rd3 Ng6 Re3 Nh4 Re7 Rd8 Ra7 Rd7 Rb7 Na8 Nd8 Nb6 Ne6 Nf5+ Kh7 Ke7 d6+ Kf6 d5 Ke5 Nd4 Kf4 Q3a3 Rc7 d7 Kg4 d8Q Kh3 d6 Kg2 Qa4 Rd7 Qc7 Kh1 Qab3 Re7 Ne6 Ned4 d7 Nb5 d8Q Rd7 Nd4 Na7 Ne3 f1Q Qg5 Qf2 Nf1 Nb5 Qg4 Rg6 Qg5 Rgd6 Qg8 Rd8 Bd7 Rb8 Bc8 Ne7 Kg7 Rd7 Kh6 Nf5+ Kg5 Rd8 Nde2 Qa4 Ne4 Rd5 Qd2 Rd8 Bf6 Qh2 N4c3 Qa2 Qdb2 Bgc5 Nd4 Qf2 Bd3 Be6 Bc4 Rd7 Kg6 Bf7+ Kh7 Nh4 Kh6 Nf5+
1q1kB1RN/1R4K1/nb5r/R1B2QNp/1q4Q1/1P1bR2b/5QNq/r1n2n1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 Ke5 f5 e4 h3 d4 h2 g4 f3 b3 f4 d6 c4 g5 c3 d5 a4 g6 c2 d7+ Ke7 b6 f2 g7 a3 b7 a2 d6+ Kf7 Ba3 c1Q Bb5 f1Q Ne2 f3 Nd2 f2 Nf3 Rh6 Bc5 Ra3 Nf4 Qcc4 Ng2 Qb4 Ng5+ Kg6 Qg4 Na6 b8R Qg1 Rb7 Ne7 g8R+ Bg7+ Ke6 f1B e5 Bd3 Bc6 Qf2 Rhe1 Nd5 Re3 Nc3 Ba4 Qc7 Ke7 h1B e6 Qcb6 d8Q Ne2 d7 Nc1 Qf8 Qc7 Bc6 Qb8 d8N Qfg3 Qff3 Qh2 Ndf7 Ra4 Ke8 Ra5 Qe2 Kf6 e7 Bh8 Kf8 Ra3 Rb1 a1N e8Q Nc2 Qee4 Ra1 Be8 Bd7 Qf2+ Bf5 Re2 Ne3 Rbb2 Nf1 Re3 Qd2 Ra2 Qb4 Nf3 Bd7 Ra5 Bf5 N3e5 Ke6 Ng6+ Be5 Ng5+ Kf6 Qef4 Bc7 Nh8 Bd8 Ne4+ Ke6 Kg7 Bb6 Qd1 Bh3 Qdg4+ Kd5 Qf8 Ke5 Ng5+ Kd5 Rd7+ Kc6 Q8f5 Qa4 Rd8+ Kc7 Rd7+ Kc8 Rc7+ Kd8 Rb7 Qb4
2q1N1RN/n3Qq2/1KnBBr2/2q3p1/3B1b1P/B5r1/b1RRq2b/2nQN2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 a5 b6 g5 b7 a4 b5 f3 Ke3 a3 b6 g3 Kd3 g2 Kc4 f4 Kb5 c4 Nh3 g1B Nd2 f2 Ra2 c3 Rc2 a2 Bc4 f1Q Nf3 a1Q Rhh2 Rh6 Ne1 f3 Nf4 f2 Ng6 Be6 Nh8 Nc6 b8R Nge7 b7 Qc8 Kb6 Qe2 Be3 f1Q e5+ Kd7 d6 Na7 d5 Rf6 Bd4 Qc1 Rd2 c2 Ba2 Nec6 Bb3 Ke8 d7+ Ke7 d8B+ Kd7 Ba2 Bd6 Be7 Qa3 Bc4 c1N Rf2 Bf7 Rc2 Bh2 e6+ Ke8 Rg2 Bdf4 d6 Qff3 Bf8 Kd8 e7+ Kd7 e8N Qc5+ Ka6 Bd5 Be7 Ke6 d7 Kf5 d8Q Ke4 Rd2 Qd6 Kb6 Qh5 Bb3 Qf7 Bf8 Qe5 Ba3 Be6 Qe7 Qd5 Nd3 Kf3 Rf2+ Kg3 Ne1 Kh3 Bc2 Kg3 Bf5 Qd6 Bg4 Ba2 Be6 Qde5 Rf1 Q5e3 Rg1+ Kf2 Rg2+ Kf1 Rf2+ Kg1 Rg2+ Kh1 Rf2 Qd7 Rd8 Qc3 b8B Qc8 Bbd6 Qcc4 Ng7 Qc3 Rg8 Qce3 Ne8 Rb8+ Kc5 Rb3 Rg2 Rd3 Kb6 Qg1 Rc2 Rg3 Rf2 Qe5 Rfd2 Qe2 Bc7 Qge3 Bb8 Qe5 Bbd6 Qc5+
1Q1bR2N/3B1r2/q2R4/nQn3p1/qQrQ2P1/2qb1nRr/1BkN1N1r/4K3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 h4 Qb3 Rh6 Qh3 Rh8 Qg3 hxg3 h4 Kd7 b4 Kd6 e4 Ke5 d6 Kd4 e5 a5 e6 c5 b6 f5 b7 g5 d7 a4 b5 c4 d3 g2 h5 a3 e7 a2 e8Q c3 h6 f3 b6 f4 h7 c2 Rh5 f2+ Kd2 f3 Qe6 Ne7 Qe1 Ra3 Rh3 Nec6 Rg3 Qf6 d8R+ Nd7 b8Q Na5 b7 Be7 Nh3 g1N Re8 Bd8 Bb2+ Rc3 Be2 f1Q Nf2 c1R Bd1 Qh3 Ba4 Nc5 Bd7 Qa6 Qf1 Rc2+ Kd1 Re2 Nd2 Re4 Rb1 a1Q Qf4 Qa3 b8Q Bb7 Qe2 Qa4+ Ke1 Bd5 Qb4+ Bc4 Qfb8 Rf4 Rd1 Rf7 Qf1 Rf4 Nfe4 Ke3 d4 Bd3 d5 Rf7 d6 Rc4 Bc1 Kd4 Ba3 Ke3 Nf2+ Kd4 Q4b7 Kc3 Qb4+ Kc2 Bc1 Rhf8 Bb2 Rh8 Rg2 Qg3 Qe2 Qe5 Rg3 Qc3 Qe5 Rf6 Q8b5 Rh6 Qf4 Rh2 Qd4 Rf8 h8N Rf7 Bc8 Rfh7 d7 R7h3 Re2 Bc7 d8Q Bb6 Bd7 Bc7 Qdb8 Bd8 Nh1 f2+ Kf1 Bf5 Re8 Nf3 Ke2 f1R+ Nf2 Rh7 Re4 Rf7 Re7 Rfh1 Re8 Ng1+ Ke1 Bd3 Q8b6 Rh3 Qb8 R1h2 Qde5 Qcb3 Nb1 Be2 Rd6 Qc3+ Nd2 Bd3 Qd4 Nf3+
QB6/nq5b/k1NKb3/B1rN2pr/2b2PN1/Nq1n1Q1B/1r4qR/2Q1bR2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 g5 Kd3 e5 Kc4 d5+ Kd3 Kd7 h4 Kc7 c4 Kb7 f4 a5 b4 a4 b6 a3 f6 e4+ Kd2 a2 c5 d3 Ke3 d2 Kd4 e3 Ke5 g3 h5 e2 b5 e1Q+ Ne2 d4 f7 g2 h6 g1Q h7 d3 Rh3 Nd7+ Ke6 Rb8 Na3 Qeg3 Nc3 Qc7 Kd5 Be7 f8Q Ne5 Rh2 Bg4 Rb1 a1R Bh3 Ra2 Qe2 d1B Bd2 Bc2 Rf1 Rb2 Qd8 Q1e3 Qf3 Qg2 Qe8 Rc8 c6+ Ka8 b7+ Ka7 b8N Bb4 Be1 d2 Qf8 Qcb6 c7 d1B Qd8 Qa6 b6+ Kb7 Qf8 Be2 Qe8 Ba5 Kd6+ Be4 Qd8 Be6 Nd5 Qb3 Bd2 Ne7 Be1 Rf8 h8N N7c6 Nf7 Na7 Nh6 Rh8 Ng4 Rh5 Qg8 Bd2 Qf8 Bh7 Qe8 Bc1 Ba5 Bd2 Qg8 Bb5 Qh8 Nd3 Qc3 Be1 Qc1 Rh8 c8Q+ Ka8 Rf2 Bc4 Rf1 Rg8 Qe8 Kb7 Qd8 Rg7 Qf8 Rc7 Qh8 Rc5 Nc6 Qab5 Qa8+ Ka6 b7 Q5b4 b8B Qb7
3q1N2/3Q1rnB/1K1N1r2/rBr1RPb1/Q1Q2bR1/3p1b2/NB1k1Nnq/3q4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 e5+ Kc4 d5+ Kb3 h5 Ka4 a5 c4 h3 g4 h4 f4 d3 g5 d4 b6 h2 Kb5 d2 c5 Ke3 b7 e4 c6 d3 g6 a4 f6 h3 f5 a3 f7 a2 g7 Rh6 c7 Ne7 g8B Nd7 b8Q Bb7 c8N Rf6 Qa4 Nc5 Qba7 Bh6 f8N Nd5 Be2 Bg5 Bh5 Nf4 Be8 Ng2 Bb2 d1Q Nc3 Kd2 Nd6 e3 Bh7 Bf3 Qd7 e2 Rc1 a1R Na2 e1B Rc4 Ne6 Rg4 Ng7 Kc5 Bb7 b5 Bf3 b6 Ra7 b7 Bg3 b8Q B3f4 Qbb5 Rc7+ Kb6 Rc5+ Qc7 Rf7 Qbc4 Rf6 Bb5 Rf7 Ne2 Rf6 Re1 h1R Ng1 h2 Nh3 Rg1 Qg8 h1Q Re5 Qh2 Qgc4 Re1 Nf2 Re3 Rd5 Re7 Re5 Ref7 Nc3 Qe8 Qd7 Ra3 Na2 Qc8 Qab3 Ra5 Qba4 Qd8+
1q3Q2/1Q1nB1R1/NbNB1BKQ/2r1pB2/1q2r2P/1q3b1b/1n5r/2bRN2k w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 f4 a5 b4 d5+ Kd3 e5 c4 g3 b6 a4 b7 a3 c5 g2 c6 g4 c7 g3 h3 a2 b5 Ba3 b6 Ne7 Nf3 g1B Ne1 g2 Nd2 Ra5 Nc4 Ng6 Qh5 Rc5 Qh6 Nd7 b8N Be3 b7 g1Q Rb1 a1R Na6 Qg4 b8B Bf2 Be3 Bc1 Rg1 Ra4 Na5 Qh4 Nc6 Rac4 Ke2 d3+ Kf3 d4 Ke4 d2 Bd3 d1B Rg5 Bg4 Bc2 Bb7 c8Q Qb6 Bd6 d3+ Bd4 Ba8 Qb7 d2 Ra1 d1Q Rb1 Kf7 f6 Ke6 f7 Rb4 Bd3 Qb3 f8B Qd8 Bfe7 Qb8 Bf6 Bf5+ Kf3 Kd5 Rg3 Be6 f5 Nf4 Rg7 Ra4 Bb2 Re4 Ba3 Bfe3 Bc2 Nd3 Bb4 Nb2 Bde7 Ra5 Bbd6 Bb6+ Bd3 Rc5 Ra1 Re2 Rb1 Qhb4 h4 Rh2 Ra1 Rc8 Rb1 Rc4 Kg3 Re4 Ra1 Bf4+ Kg4 Bc1+ Kh5 Rc7 Kg6 Rc8 Bg5 Rc7 f6 Bh3 f7 Rc8 Nd8+ Kd4 f8Q Rc5 Qc8 Bb7 Bgf6 Bc6 Qb7 Bd5 Qhh8 Ke3 Qh6+ Kf2 Nc6 Kg1 Bb1 Kh1 Bd3 Re3 Bf5 Bf3 Rb1 Re4 Ra1 Bf4 Rd1 Bc1
2q1KQ1n/4QRRq/1Q4b1/1NP1N1bn/bb2B3/B2r2pB/kq1B2R1/2nr4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 a5 e4+ d3 h4 d5+ Ke5 f5 c3 g5 b6 d4 b5 g4 h6 f3 h5 a4 h7 a3 b7 a2 b6 f2 h6 g3 Bb2 f4 Rh5 f3 Qe1 Kb3 c4 d2 Rf5 d1Q Na3 d3 Nb5 d2 Rf7 Ra3 Bh3 Nd7+ Ke6 f1N b8Q f2 e5 Qb1 b7 d1B Nf3 Bb4 c5 Nd2 Qa8 f1Q b8Q Ne7 Qb6 Rg8 h8B Qe2 h7 Ng6 Bf6 Bc2 Bg5 Nh8 Rg7 Qc7 Ke7 Rd8 e6 Bg6 Ne5 Qc6 Bf4 Nf6 Rf7 Rd3 Bc1 Ra4 Ba3 Bd7 Qf8 Nh5 Kd8 Qee4 e7 Qb2 e8B Qc8+ Ke7 Ra6 Qe2 Bc6 Rg1 a1B Rg2 Ka2 Bh6 Nb3 Bd2 Nc1 Bed7 Qc4 Bdf5 Qcc2 Be4 Be8 Nc7 Ba4 Nb5 Qf5 Ke8 Qc8+ Qd8 Rf6 Qe3 Rf1 Qeh6 Bf5 Qb6 Rd1 Rg7 Nf7 h8R Bg6 Rhh7 Nh8+ Ke7 Qc4 Qde8 Qg8 Rf7 Qg7 Qed8 Qh6 Rhg7 Qh7 Ke8 Qc2 Ng4 Bf6 Ne5 Qb2 Qe7 Bg5 Qf8 Qe6+ Qde7 Qc8+
q3kn1R/2R3q1/n2Qb2N/2Pb3K/1R2rN2/Bp1QBBq1/3rN2B/1qr1b3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 b5 Kf3 g5 Kg4 e5 h4 d5 f4 e4 c4 b3 a4 b2 a5 e3 a6 d3 a7 d4 h6 d2 h5 e2 h7 e1Q h6 b4 Kh5 d3 f6 g4 f7+ Ke7 f5 g3 f6+ Kd7 Rh4 g2 Be2 b3 Bf3 Bg7 f8Q Bb7 f7 Na6 Nh3 g1Q Nc3 b1Q Nf4 Bd5 Nce2 Rc8 a8R Bc3 c5 Qg7 Ba3 Ne7 Qc2 Rg8 h8N d1R h7 d2 Qd3 Ng6 Rb8 Ba5 Rb4 Rc1 Rh2 d1B Rh3 Rc7 Qd6+ Kc8 f8B Rd7 Rh1 Qg3 Nf7 Qe8 Nh6 Kd8 h8B Qe4 Bg2 Ke8 Bf3 Be6 Be7 Nf8 Bg5 Qa8 Rh2 Re7 Rh1 Bd5 Rh4 Re4 Ra2 Qgb7 Be5 Qg7 Rd2 Bc2 Rd1 Rh8 Rdh1 Rh7 Rb7 Bb4 Rc7 Be1 Ng6 Nd7 Qd1 Ndb8 Ng1 Bc3 Be3 Qh2 Kg5 Rc4 Ng8 Bf5 Qd3 Be1 B5f4 R4c2 Ne2 Bfe6 Bg3 Nd7 Rb4 Qg1 Rh3 Qf2 Bh2 Rd2 Rh5 Nf8 Rh6 Qf7 Rhh4 Rg7 Rh8 Qg3+ Kh5 Qf6 Nh6 Rf7 Beg1 Qg7 Bd4 Rf4 Be3 Rfc4 Ngf4 Re4
3NbQRQ/k1q1q3/4R3/2Pr1r2/1BqN2pQ/2R3BB/nbKnq3/1B1rb3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 h4 Kd7 e4 Kc7 b4 Kb6 c4 f5 e5 a5 h6 g5 h5 f3 h7 a4 h6 g4 e6 f4 e7 f2 e8B f3 Bf7 a3 Kc2 a2 Nd2 Ra5 Bg6 Na6 Bh3 f1Q Ba3 f2 Rc1 a1B Qf3 Bd7 Ne4 Bb2 Nc5 Qc7 Ne6 Ka7 Nd8 Qe1 Ne2 f1Q Qf5 Bd6 Qf8 Be8 Bf5 Bg3 b6+ Ka8 b7+ Ka7 b8R Nf6 b5 Ne4 Bd6 Nd2 Bb4 Rg8 h8Q Rg5 Bg6 Rf5 h7 Qff4 Qhf6 Bh4 h8Q Bf2 Nc3 Qee7 Ne2 Be1 Qfh4 Qf1 Rb6 Qff4 Re6 d3+ Kd1 d4 Rc3 Qe4 Rf1 Rd5 Rf7 Rf5 Rg7 Qec6 Rg8 Qe4 Bd6 Nb4 Bh7 Na2 b6+ Kb8 b7 Ka7 Bb4 Rad5 Rf6 Q4e6 c5 Qa6 Re6 Qc4 Ba3 Nb1 Bb4 d2 Kc2 d1R Bg6 Nd2 b8B+ Ka8 Nf7 Ra1 Rb6 Nb1 Q8h5 d3+ Kd1 d2 Rc2 Rg5 Rc3 Qc8 Bg3 Qcc7 Nd4 Ka7 Re6 Rge5 Nd8 Rg5 Bd3 Rgf5 Ke2 d1Q+ Ke3 Qdb3 Qh8 Nd2 Bc2 Qf1 Be4 Rd1 Bb1 Qf2+ Kd3 Qc4+ Kc2 Qfe2
6k1/RnrB1NN1/K1Rb4/1rp1qb1N/1B1QQ3/r4bB1/B1PQ4/b2n2nq w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Kf7 f4 h5 g4 d5 b4 a5 b6 c5 e6+ Kg7 b7 e3 Kd3 d4 Kc4 e2 Kb5 e1R g5 a4 g6 a3 f5 d3 e7 a2 e8Q d2 f6+ Kh6 g7 Kh7 f7 h3 Nf3 h2 Ne5 h4 Ba3 h3 Nc3 Qd4 Nd5 Qh4 Nf4 Qg5 Nh5 Nc6 b8B Nge7 g8B+ Kh6 Qe2 d1N Qd2 Nd8 Qc6+ Be6 Qe4 Rh7 Bc7 Rb8+ Ka6 Nec6 b5 Bf5 b6 Nb7 Bb5 Re3 Bb4 Bd6 f8N Nd4 Ne6 Ne2 Neg7 Ng1 Nf7+ Kg6 Be8 Qg3 Bd7 Qe5 Bd8 Rb3 Bh4 Re3 Bg3 Rf3 Rb1 a1B Rb3 Rd3 Ra3 Rb3 Ra4 Ra3 Qed4 Ne2 Rf1 h1Q Rf4 h2 Ra5 Nd8 b7 Ng1 Re4 Rc8 b8Q Rc7 Qa8 Nb7 Nh6 Rh8 Ba2 Kh7 Nf7 Rb8 Rg4 Kg8 Rg6 Nd8 Re6 Rb5 Qae4 Nb7 Rg6 Qg2 Ra4 h1B Ra5 Qh2 Rf6 Bf3 Rg6 Bf8 Rc6 Qh1 Ka7 Bd6 Raa6 Rba5 Kb6 Re3 Ra7 Rb5+ Ka6 Ra3+
5n2/1k5q/n1nq2Rn/2pR1K2/N3rBNR/4rbPB/B1q1r2Q/B1Q1b2Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 h5 b4 a5 d4 a4 d6 h3 g3 h2 d5 h4 b6 h3 b7 a3 e5 a2 b5 Ne7 b6 Nec6 Na3 Na6 b8B Bb7 e6+ Kc8 e7 Rh4 Rb1 a1N e8B Nb3 Ne2 Nbc5 Bb2 Ne6 Ba1 Bh6 Bf7 Nf8 Rb3 Bg7 Nc2 Bc3 Bg8 Be1 Nc3 Ra7 Ne3 Qf6 Rg1 h1N Na4 h2 Qc1 Nf2 Bh3 Ng4 Rh1 Nh6 Ng4 Qb2 Re3 Qc2 Re6 Ba8 d7+ Kb7 Rg1 h1R d8R Rh2 d6 Rd2 d7 Re2 Nf2 Rg4 Rh1 Rh4 Rg6 Rg4 Kg2 f3+ Kh2 f4 Bf7 Ne7 Ba2 c5 Bc7 Nc6 Bce5 Qf5 Bc7 Rh4 Bce5 Re3 Ng4 f2 Kg2 Re2 Kf3 Qc2 Bc7 Rd2 Bb8 Rd3+ Ke4 f1Q Bbe5 f3 Bf4 Qfg2 Rh2 Qgd2 Rh1 f2 Rh2 Ng8 Kf5 f1Q Rh1 Qfe2 Rh2 Qe7 Rh1 Qh7 Rh2 Nc7 Rh1 Ka6 b7 Qdd1 b8Q Nh6+ Kf6 Re3 Qbb1 Qd6+ Kg5 Qb3 Qbb2 Kb7 Qh2 Nf7+ Kf5 Na6 Rc8 Re2 d8Q Qc3 Qe8 Qc2+ Qe4 Re3 Re8 Re2 Re5 Nh6+ Kg5 Kc8 Rf5 Re7 Rd5 Kb7 Qf3 R7e3 Qe4 Ng8 Kf5 Na7 Nf6 Rg4 Re5+ Kc7 Qg2 Qf7 Bg5 Rh4 Bg4 Rh7 Rh4 Bb7 Qh2 Nh6+ Kf4 Qg7 Qeh1 Bf3 Bh3 Nc6 Ng4 Qh8 Bc3 Re7 Ba1 Qdd1 Rf5 Kb7 Re5 Qd8 Rf5 Qh7 Rd5 Ng8 Bh6 R7e4+ Kf5 Qd6 Bf4 Nh6+
bRrqQ3/k5K1/6bN/bQp2Nn1/4n1bP/q3RB2/Q3BQ2/n3qRBr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 Kc7 h4 Kb7 e5 g5 e6 a5 b6 g3+ Kf3 a4 d6 a3 b5 a2 e7 g2 e8B Nf6 d7 Rg8 d5 Na6 d6 Nc7 Be3 Nh7 Na3 Ra6 Qe1 Bg7 Rh3 Bc3 Be2 Ba5 Bh5 Ne8 Nc4 Nef6 Qf2 Ne4 Rf1 a1N Ne5 Kb8 b7 Ka7 b8R Bb7 Bf7 Ba8 Bd5 Rc6 Ng4 Rc8 Nh6 Rg6 Bd1 Rg8 Ne2 g1Q Ng3 g4+ Ke2 f3+ Kd3 f4 Ngf5 g3 Be2 g2 b6+ Ka6 b7 Nhg5 Kc4 Ka7 Bc6 Qh2 Kd5 g1Q Ke5 Qhg3 Bd5 Qb6 d8Q Rg7 Qe1 f2 Qg8 Qd8 d7 Qf3 Bd4 Qa3 Re3 f3 Qd2 Rg6 Qf8 Rb6 Qa2 Rb1 Qf7 Qf8 d8Q Qh1 Rc1 f1B Qde8 Bh3 Rf1 f2 Qb5 Qd8 Qf8 Nf6 Bdf3 Nfe4 Qf6 Bg4 Qf8 Nh7 Ke6 Rc1 Kf7 Nhg5+ Kg7 Rb1 Be5 Qg1 Bh2 Qg3 Bg1 Rc1 Rd1 f1B Qbe8 Bfh3 Rf1 Bh5 Qf6 B3g4 Qfb2 Bg6 Qd2 Qg2 Qe1 Rd1 Qf2 Qh1 Re1 Qh3 Bh2 Rc6 Rc8 Rd3 Rb1 Qf1 b8Q+ Ka6 Qbb2 Ka7 Qb5 Rd1 Rb8 Rc8 Rc1 Qh3 Rb1 Rh1 Bg1 Qf1 Rc1 Qfd1 Rb1 Q1d2 Rf1 Qe1
2rq1B1k/1b4N1/r2bQQ2/2p3NK/B1R1BP2/7R/bqqn3R/Nnr3Rq w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 Kg7 g4 e5 d4 c5 b6 h5 b7 a5 b5 h3 g5 h2 d6 e3 Kf3 e2 b6 e1Q g6 h4 d7 e4+ Kg4 e3 d5 h3 d6 e2 Qd5 a4 Qe6 a3 Bg2 a2 Na3 Be7 Be4 Bg5 Nc2 Qe8 d8Q Bf4 d7 Ra6 Nf3 Bd6 Ng5 Nc6 b8R Na7 b7 Qd2 f4 e1R Bb2+ Qc3 Rd1 Qe7 Na1 Nb5 Rd3 Rd1 Rg1 h1B Rd4 h2 Rc4 Re1 Ra8 Qe8 b8R Na3 Rb3 Nb1 Rab8 Bb7 Qdf6+ Kh6 d8N Qc2 Kh4 Rc1 Rh3 Bf3 Bd4 h1Q Rh2 Bd5 Rb3 Bg2 Rbh3 Bf3 Qfe7 Nf6 g7 Bg2 g8B Bb7 Beh7 Bgd5 Be4 Qf8 Bf7 Rg8 Bb2 Kg7 Be8+ Kh8 Ba4 Qe8 Qg4 Qd7 Nde6 Rc8 Ng7 Qd8 Qf5 Bf7 Qfe6 Bg8 Bec6 Ne4 Kh5 Ned2 Be4 Ra7 Q7f6 Ra6 Nb3 a1Q Bd4 Qaa2 Na1 Qab2 Be5 Bc7 Bd6 Bb8 Bf8 Bc7 Qee7 Bgd5 Qee6 Bd6 Rd4 Bb3 Rc4 Ba2
b4Rb1/rknr1B2/N2n4/1P1qqrQK/4B1QR/1B6/1nNN1R1p/b1B1r3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 a5 d4 h5 e5 a4 g5 h3 g6 a3 b6+ Kb7 e6 h2 d6 a2 e7 h4 e8B c4 g7 c3 d5 h3 b5 c2 d7 Rh7 d6 Ra7 Bg6 Nh6 g8B Na6 Qd4 Bg7 Qc3 Nf7 Bc4 Nc7 Qd4 Bf6 Bb2 c1N Nd2 Nd3 Rf1 a1Q Bc1 Nb2 Rf2 Bh8 Bd3 Qg5 d8Q Be6 d7 Nd6 Bc2 Qa2 Bb1 Qd5+ Be4 Qf6 Ne2 Qe5 B6f7 Rg7 Rg1 h1B+ Rgg2 h2 Qg5 Rh7 d8R Bg7 Rf8 Bf6 Bh5 Rd7 Bhf7 Bh8 Qa4 Bg7 Nd4 Bf6 Ke2 f3+ Ke3 Bh8 Rg4 Bg7 Nc2 Bg2 Rf1 f2 Rh4 f4+ Ke2 f3+ Ke3 Qc3+ Kf4 Bh1 Qd4 Bh8 Qdg7 Qd4 Q7g6 Bg7 Q6f5 Qe5+ Kg4 Bg2 Kh5 Bh1 Rg1 f1R Rg2 f2 Qgg4 Rd1 Qfg5 f1R Rf2 Rde1 Q4f5 Qc6 Qfg4 Ba2 Bb3 Qcd5 Bf7 Bh8 Rg2 Rf4 Rf2 Rf5 Re2 Qc6 Qg1 Qc3 Rf2 Nd1 Be8 Ka8 b7+ Kb8 Bg8 Q3c5 Qg4 Ba1 Bd3 Qe5 Bgc4 Bd5 Be4 Bg8 Bcd5 Nb2 Be6 Bd5 Bg6+ Nce8 Bgf7 Kc7 b8N Qc5 Qg1 Ba8 Bb3 Qcd5 Qg4 Kb7 Na6 Nc7
5Q1r/Bn1kN3/Q1Rb1qBb/1P3R2/4b1rq/K5N1/npnQbN1B/1rB5 w - - 0 1 illegal: No proof kernel
NN5Q/K1Rb4/1Q2Brk1/1PqqBnr1/3n4/2b2npR/RN1q1Qr1/1q2R3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 Kf7 d4 g5 e5 c4 e6+ Kg7 h5 c3 d6 a4 d7 f3 Ke3 g3 e7 g4 e8R c2 d5 g2 Kd4 a3 b6 f4 b7 a2 h6+ Kf6 b5 f2 h7 g3 d6 f3 Kc5 Ra3 Rh3 Qe7 Kb6 Nh6 d8R Nf5 d7 Re3 Qe2 Bg7 Ka7 Re5 Bb2 c1Q Nd2 Kg6 Nc4 Qd2 Nb6 Qc5 Re7 Rf8 h8Q Rf6 Re1 a1N Rde8 Nc2 d8Q Nd7 b8N Ncd4 Ra1 Rd5 Ra2 Ne5 Rc7 Be6 Qe3 Bd7 Bc4 f1Q Qf2 Qfd3 Ne2 g1R Nc3 Rg2 Na4 Qb1 Bc3 Qbd3 Nb2 Qe4 Qe1 f2 Re7 f1Q Qf2 Qeb1 Re8 Nef3 Re1 Re5 Be6 Qd5 Na8 Qfc4 Qe7 Qcc6 Qd6 Qcc5+ Qb6 Re4 Rh2 Rg4 Rh7 Rg5 Rh3 Nc2 Be5 Ncd4 Qd8 Bh8 Qf8 Bg7 Qh8 Bf8 Na6 Qcc6 Ra3 Bb4 Ra2 Qcc5 Nb8 Bc3
3RBR2/4Bb1r/1k3Nn1/1Pp5/q1Qn2Kn/2QN4/NB2rq2/1qb1QbbN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 h5 d4 a5 e5 h3 e6 h2 d6+ Kb7 b6 a4 d5 a3 e7 a2 e8N h4 d7 h3 d6 Nc6 g5 Qf6 d8Q Be6 g6 Qd4 g7 Nge7 g8Q Rh7 d7 Ng6 Nf6 Bh6 Nc3 Bf7 Bb5 Ra7 Rb1 a1B Nge2 Ra2 Rf1 h1N Qe1 h2 Bb2 Ng3 Rd1 Qc4 Qdf8 Qb3 d8B Qa4 Qfg7 h1Q+ Kf2 f3 Be7 f4 Rd8 Nd4 Be8 Ngf5 b5 Nfh4 Ng3 Qh3 Nh1 Qf5 Q7h8 Qb1 Qhg7 Ra3 Na2 Re3 Nd5 Re4 Ndb4 Bg5 Nd3 Re2+ Kg1 f2+ Kh2 f3 Kg3 Bc1 Kg4 Rh6 Qe5 Rh7 Qc3 Rc2 Qee1 Re2 Rg1 f1Q Rg3 f2 Rf3 Bd5 Rf8 Bb3 Qgc4 Qg1+ Kh3 Qh2+ Kg4 f1B Rd6 Qf2 Rd7+ Ka8 b7+ Ka7 b8N+ Kb6 Rd5 Qa3 Rd8 Qa4 Q4b4 Bf7 Nd7+ Ka7 Nf6 Kb6 Ba3 Bab2 Qcc4 Bc3 Bb2 B3d2 Qcc3 Bf4 Qcc4 Bh2 Qbc3 Bg1
1rQ1q3/r2R2b1/5R1r/PqNn1Q1b/4N3/1R2n2B/1pKRq2Q/kN2Bn1q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 g4 c5 f4 b5 a4 e5 g5 h5 g6 e4 a5 e3+ Kc2 e2 g7 e1Q f6 h3 f5 h4 f7 h2 f6 b3+ Kb2 c4 Ra4 b4 Qc2 c3+ Ka1 b2+ Ka2 h3 Kb3 Qe2 Bh6 Nd7 Ra3 Ne7 g8Q Ne5 Nf3 Bg7 f8Q Qe8 f7 Ra7 Bd2 Bg4 Ng5 Bh5 Be1 Rh6 Qch7 Q2b5 Kc2 Nc4 Rg1 h1R Rg2 h2 Rd2 Rg1 Qhh8 h1Q Bh3 Qf3 Qgh7 Qe2 Qf5 Rf1 Qfg8 Rf2 f8R Ne3+ Kb3 c2 Ne4+ Kc7 d6+ Kc6 d7 c1Q d8R N7d5 Rd7 Rf3 Bg3 Qh1 Be1 Rf2 Nbc3 b1N Rf6+ Qe6 Kb2 b3 Qb8 Rg2 Qh2 Rgg6 Qd8 Rh8 Qe8 Rgh6 Kc1 Ng2 Qf8 b2+ Kc2 Rg8 Rb3 Rgh8 Qb4 Re8 Qf8 Rb8 Nd6 Qe7 Qd8 Qe8 Qc8+ Nc7 d5+ Kc5 Nde4+ Kc4 Ra3 Kb4 d6 Nd5 Re7 Qb6 d7 Qc6 d8N Qcb5 Qa6 Kc4 Ne6 Kb4 Rd7 Kc4 Nd1 Kb4 Rf3 Ka4 Ndc3+ Ka3 Na4+ Ka2 Qc8 Ka1 Rb3 Qf3 Nac3 Qe3 Rd4 Nd2 Nb1 Qee2 N6c5 Nf1+ Rd2 Nge3+
1q4B1/r1rb2Nn/3B3R/Prr1N1kq/K1Q3N1/1R2n1Qn/1p6/1b1N1RbB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 Kf6 Kc2 c5 Kb3 b5 g4 e5 f4 h5 a4 e4 a5 e3 d6 e2 d7 e1N d5 h3 d6 h2 Qf3 h4 Bg2 h3 Ba3 Rh5 Qg3 Nd3 Nf3 Na6 Ne5 Ra7 Nc3 Nf2 Raf1 Nc7 Nd1 Nd5 Bf3 Qb6 d8N Qb8 d7 Ne3 Ne6 Bd6 d8N Bd7 Ndf7 c4+ Kb2 b3 Ng7 b4 Nh6 Bc5 g5+ Ke7 g6 Nf6 Nhg4 Nh7 Rhg1 h1Q f6+ Kf8 f5 h2 f7 Ke7 f8R Nh3 Rf6 c3+ Ka1 b2+ Ka2 b1B+ Kb3 c2 Ra6 c1R f6+ Kd8 f7 Ke7 Bc6 Rc4 Ka4 b3+ Bb4 b2 Rb6 Qf3 Rh1 Rc3 Ba3 Rc7 Rb3 Rc2 Ne6 Rc1 g7 Rc3 g8B Rg5 Rhg1 h1R Ng7 Rh2 Rh1 Re2 Ngf2 Qh5 Nfg4 Ra7 Bb4 Rec2 Ba3 Bd6 Rh2 Rc5 Bb4 Rb5 Bh1 Rcc7 Ba3 Bc5 Bb4 Kd8 Ba3 Bd4 Bd6 Bb6 Nf3 Rgc5 f8Q+ Qe8 Qff4 Qh5 Be5 Ke7 Qc4 Rd5 Bf4 Bd4 Nfe5 Rdc5 Rb4 Nf5 Rb3 Bg1 Rd2 Ne3 Rd6 Be6 Ra6 Bd7 Rh6 Nf8 Nf3 Nh7 Ngh2 Bg6 Bd6+ Kf6 Ne5+ Nf5 Qf2 Kg5 Nhg4 Ne3 Qg3 Bb1
1Q4nn/1brb1k2/2rQ3R/p4N2/Rq2KP1B/1r2RB2/1Nnb1N2/q1r2NQ1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 c5 Ke3 a5 g4 e5 b4 h5 d4 h3 b6 h2 g5 c4 g6 c3 d6 c2 d5 h4 g7 h3 d7+ Ke7 b7 Qc7 d8N Rh6 d6+ Ke8 b5 Qd7 b6 Qg4 Bg2 Nc6 b8Q Ra7 b7 Bd7 Nf7+ Nd8 Nd2 Rf6 Ba3 c1R Nf1 Rb1 Bb4 Rb3+ Bc3 Be7 Ra4 Rg6 Bf3 Bg5+ Ke2 e3 Kd3 Bf4 Ke4 e2 Be1 Qh4 Nh6 Bd2+ Ng4 Qh8 Nge3 Kf7 Nc4 Rh6 Nb2 Rf6 Kd5 e4 Ke5 e3 Ke4 Rg6 Qc7 Rf6 b8Q Rh6 Qc6 Rc7 Qdc1 Ne6 Qa6 Nf8 Qd3 Ng6 Qd1 N8e7 g8N Qc3 Qd4 Nh8 Qc1 Rf6 Qb1 Qb4 Nh6+ Kg7 Nf5+ Kf7 Qa1 Ng8 Qc1 Be8 d7 Rfc6 d8R Bd7 Bg4 Rb6 f4 Rbc6 Bh4 e1R Rc8 e2 Bf3 Rd1 Qb1 e1N Re8 Nc2 Re6 Rc1 Qa1 Qc5 Qd6 Qa3 Ne2 Qc5 Nc3 Qa3 Ncd1 Qc5 Rg1 h1B Rh6 h2 Rg3 Bg2 Qb1 h1Q Nf2 Qg1 Rh3 Bh1 Bg2 Qb5 Re3 Qb6 Bf3 Qg7 Nbd3 Qa1 Nb2 Qb4+ Kd5 Qb6 Nh2 Rf1 Be4 Qb4 Qd1 Ra6 Qg4 Qb1 Qg1 Rc1 Nf1 Qa1 Ke5 Bf3 Ba8 Bg4 Bh1 Bf3 Bg2 Ba8 Bf3 Rac6 Kd5 Bb7 Ke5 Qb5+ Ke4 Qb4+
bb1R4/K4bnQ/1n2B1NP/4N1r1/kqp1nQ2/5r1B/2q1bR2/2BQ1qQN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Ke3 c4 h5 g3 d6 f2 h6 a4 b6 Kc6 b7 Kb5 e6 a3 d5 g4 Kd4 a2 e7 g2 e8B+ Nd7 b8N f4 Bf7 g3 Nd2 f3 Be6 Ngf6 Nc6 Ra3 Rh2 Nh5 Ne2 g1N Ne7 g2 Ng6 Qa5 Ng3 Nb6 d7 Rg8 d8Q Nh3 d6 g1Q d7 Ng5 Nh1 Bd6 Qe7 Ne4 d8Q Bb8 Bfh3 f1B+ Rf2 Bg2 Qh7 Qh2 Qg1 Ka4 b5 Qb4 Rb1 a1Q+ Rb2 Na8 b6 Ng7 b7 Nb6 Qd5 Qb1 Rb3 Bd7 Rd3 Be8 Qd8 Bf7 Qd6 Ba7 b8Q Rc3 Qbd8 Bb8 Qf4 Qc2 Qd5 Qd1 Qd8 Qf1 Qdd6 Nc8 Kd5 Nb6+ Kc6 Ra3 Kb7 Rc3 Re2 f2 Nf3 Ra3 Rd5 Re3 Nfe5 Rf3 Ka6 Ng5 Nf8 Ra3 Rc2 Nh5 Rd3 Ba8 Qgg3 Ne4 Qg1 Rg5 Nfg6 Ng7 Rd1 Rf3 Qd3 Bc6 Qe2 Ba8 Rd8 Qd1 Qd3 f1B Qdd4 Qde2 Qd1 Qd3 Rd2+ Qc2 Re2 Qg2 Rf2 Be2 Nd3 Bc7 Nde5 Qf1 Ka7 Bb8+
6Q1/2nB1N1Q/5RRp/2kn3q/3n4/bn3NR1/KBNrbP1r/1B1q1bqB w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 c4 Kd7 Kc2 Kd6 Kb3 a5 g4 e5 f6 d3 f7 d2 g5 h6 g6 d4 g7 d3 c5+ Kd5 c6 e4 c7 h3 b6 e3 b7 e2 Nf3 e1N Qc2 d1Q Ra3 a4+ Ka2 d2 b4 h2 b5 Qg5 b6 Qg1 Qh7 Kc5 Bb2 Na6 b8Q Bh3 c8B Nf6 g8B Nc2 b7 Nd5 Bd3 Nac7 Bd7 Nd4 Qc8 Bf1 b8N Bd6 f8R Ra5 Nc6 Rb5 Rb3 a3 Rf6 Rb4 Bge6 Rd8 Nce5 Bf8 Nf7 Be7 Ka1 a2 Bc6 Rd7 Qcg8 Rd8 Bed7 Rc4 N3g5 Rc3 B3f5 Rh3 Rg3 Qh5 Na3 d1B Nc2 Bde2 Nf3 Bd6 Bc3 Bf8 Kb2 a1N Ka2 Nab3 Ba8 Qg2 Rg1 h1Q Bb2 Rh2 Rgg6 Qgg4 Rg3 Qg1 Nb4 Be7 Bb1 Bd6 Nc2 Bf8 Nh4 Qf3 Bb7 Qd3 Ba8 Qd1 Nf3 Ne3 N7g5 Nde6 Nf7 Kb6 Bc8 Ba3 Nfd4 Kc5 Bh1 Rd7 Nf3 Rd2 Bd7 Ned5 R3g5 Ned4 Rg4 Rh3 Rg3 Rh2
4BQbb/rBB1Q1q1/2n2bP1/Bn1q3k/6NN/Kp3qr1/R2nRN2/2R2b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 e5 Kc2 c5 Kb2 h5 f4 b5 g4 h3 a4 c4 g5 h4 f6 Kg6 a5 e4 f7 h2 a6 e3 d6 h3 d5 b3 a7 c3+ Ka3 b2 Qe1 c2 f5+ Kh5 f6 e2 g6 Ne7 d7 Bg7 f8Q Nec6 d6 Na6 f7 Nc7 Nf3 Ba6 Bf4 c1Q Nbd2 Bf6 Ra2 Qa1 Nh4 Rh7 Rg1 h1Q Ne4 h2 Nf2 Rb8 Qb4 e1B a8B Bec3 Bb7 Qf3 Qe7 h1B f8N Rf7 Nh7 Bh8 Bd3 Bcf6 Rc1 Ra8 Be5 Ra7 Qf8 Qa8 d8B Bg2 d7 Bf1 Qbe7 b1N+ Kb3 Nd2+ Ka3 Qd5 Bc2 Bc4 Ba4 Qf3+ Bc3 Bb3 Ba5 Qac3 Qe4 Re7 Qb4 Re3 Qbe7 Qd5 Ng2 Rg3 Nh4 Ne6 Bdc7 Ned4 d8R Qcf3 Kb2 b4 Re8 Bf1 Bb5 Bbc4 Ba4 b3 Ka3 Qg8 Bb5 Qg7 Ba4 Bg8 Bb5 Bg5 Nf6+ Kh6 N6g4+ Kh5 Qd7 Bf6 Re2 Qd8 Qde7 Qdd5 Ba4 Nb8 Bd7 Nbc6 Be8 Nb5+
2Q1b3/1nr1q3/1Br2P2/2BK1n2/qRQp1kN1/3qRn2/3Q2r1/1NbN1BnB w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 a5 g4 h5 f4 e5 b4 d5+ Kd3 a4 c4 a3 b6 a2 c5 h3 b5 h2 b7 h4 b6 h3 c6 Ra6 c7 Nc6 b8Q Qe7 b7 Na5 Qe1 Nh6 Ne2 Bd7 c8Q Rh7 Qbc7 Rc6 b8N Be8 Be3 Nb7 Nec3 Rf7 Rg1 h1N Qd2 h2 Nd1 Ng3 Rh1 Ne2 g5+ Kg7 f6+ Kg6 Nd7 Kf5 g6 Ng1 g7 Kg4 g8B Nf5 Ndc3 Bh6 Nd1 Rg7 f7 Kf3 f8B Rg2 Nb6 Bg5 Nc4 e4+ Kc2 d3+ Kc3 Kg4 Bb6 e3 Kb3 d4 Bd5 e2 Nce3+ Kg3 Ng4 e1N Be4 Nef3 Bd5 Qe1 Bfc5 Qe7 Kc4 Bh6 Be4 Bg5 Kd5 Bh6 Nbc3 Bg5 Rb1 a1Q Rb4 Qa4 Nb1 Bh6 Qc2 d2 Qd3 Ne2 Rg1 h1R Qc4 Bg5 Qd6 Rh8 Qh6 Rh7 Rh1 Neg1 Rh4 Ng7 f5 Kf4 f6 Nf5 Rh3 Rf7 Ndf2 d1Q Rg3 Qd3 Nd1 Qf8 Qh2 Rfc7 Qh6 Ne1 Re3 Qe7 Bf3 Rg3 B3g2 Nef3 Bh1 Rg2 Qh2+ Rg3 Qf2 Rg2 Qd2 Qda3 Qdc3 Kg3 Re2 Bc1 Re3 Kf4 Qd2 Qd3
Q7/RnNKN2r/2n2p2/qb1B1NB1/QRq1Rn2/Rbq5/b1P2brk/5Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 a5 e4 d5+ Kb3 g5 Ka4 g4 h4 d3 b6 f6 Kb5 f3 b7 d2 h6 Kf4 h5 Kg3 h7 d4 e5 f2 e6 a4 e7 a3 e8N a2 h6 d3 Nf3 Nd7 Kc6 Nc5 b8R Nb7 b5 Qa5 b6 Bc5 Rh2 Be6 Rh4 Bb3 Bg2 f1Q Nd4 Ne7+ Kd7 Nc6 Bd5 Qc3 Qe2 d1B Bg5 d2 Nc7 Qf4 Qe8 Bf3 Nf5+ Kg2 Qe4 d1B Qa4 g3 Rf8 Kg1 Rf7 Qfc4 Re4 g2 Rg7 Qa5 Nc3 Bf2 Rf7 Rhg8 h8Q Ra7 h7 Kh2 Rfe7 Rg7 Qa8 g1N h8Q+ Nh3 Qh5 Bfe2 Qf3 Nf4 Qd3 Bh5 Qf1 Bde2 Rf7 Bg6 Rfe7 Bh7 Rf7 Bg8 Rfe7 Nd6 b7 Rg6 b8R Nb7 N3b5 Bf7 Nbd6 Qac3 Nc8 Rg7 Rd1 a1Q Rd3 Qa5 Rc3 Ba2 Ra3 Q1c3 Bh6 Rg2 Bg5 Bg8 Rf7 Q4b4 Rfe7 Bb5 Rg7 Qbc4 Nce7 Nd6 Rb6 Nb7 Rf7 Ba6 Rb1 Bb5 Rb4 Nd4+ Nc6 Nd6 Ke7 Bb1 Be6 Ra6 Ne8 Ba2 Na7 Qd5 Nc8 Rb6 Kd8 Qdb3 Ra7 Rb7+ Nb6 Rc7 Nc8 Rh7+ Nc7 Bf7 Ke7 Nc6+ Kd7 Qd5 Nce7 Qdc5 Bc4 Nb7 Bd3 Bfb3 Bc4 Q5d4+ Bd5 Qdc4
7Q/N1BK1Rn1/2bRPbqN/2p5/4r3/1Q1bnkqQ/1bN2N2/nBq1r1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 c5 b4 h5 g4 h3 g5 h4 b6 f3 g6 h2 b5 a4 g7 h3 b7 a3 b6 a2 Qd3 f2 Be3 Ne7 g8N Bg7 Nh6 Bd7 Na3 Qe8 Nc2 Nbc6 b8N Na5 b7 Nb3 Rd1 a1B Nc6 Bb2 Na7 f5+ Kf4 Rc8 b8Q+ Rc7 Bg2 f1N Be4 Na1 Qbb3 Bc6 Kg5 f4 Rd2 Ng8 Kf5 f3 Rd1 f2 Rd2 Kd7 d6 Nf6 d5 Nh5 Bd4 Bf6 e3 Kd8 d7 Ke7 d8B+ Kd6 Qdc3 Re7 Bc7+ Kd7 Bd3 Re4 d6 Qg8 Rd1 Qg3 Rd2 Rhe8 Rd1 Rg4 e4 Rh4 e5 Re4 Ne2 Re7 Nc1 Re1 Rg1 h1Q Be4 h2 Nd3 Qhg2 Rd2 Ke8 d7+ Kf8 d8Q+ Kg7 Rd1 h1Q Qc8 Rd7 Ke6 Ne3 Bg6 f1B Nf2 Bd3 Rf1 Re7+ Kd6 Qe4 Qh3 Qeg4 Be4 Qf5 Rd2 Kg6 Rd1 Kg5 Rd2 Kf4 e6 Qfg6 Bf5 Re8 Rd1 Rb8 Rd2 Ba8 Kd7+ Kf3 Rd1 Rb4 Rd2 Nd1 Be3 Re4 Qd4 Be7 Qh8 Ng7 Bd4 Bf6 Be3 Be2 Rd6 Bd3 Nfg4+ Ke2 Bg1 Ne3 Nf2 Kf3 Qh5+ Kf4 Nd4 Be5 Qh7 Be2 Qh3 Qhf3 Qh8 Bc6+ Kd8 Bc4 Ke7 Qd1 Kd8 Qc1 Nd3+ Kg5 Rf3 Rf4 Nf2 Rg4 Bb1 Re4 Rf4 Bd3 Rf7 Bf6+ Kc8 Kf4 Nc2 Ba8 Kd7 Kf3 Bb6 Bd5 Bc7 Bc6+
B1NBN3/b1Rq1rq1/3PB1Q1/2Q5/3pbQ1r/Rqr1n2N/2kN3n/Kn5n w - - 0 1 illegal: No proof kernel
3k3B/R5q1/1r1P2Qp/K1bbQ3/B1Q2bn1/N2N1rn1/2R2bN1/1qRQ1n1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 f5 Kc3 c5 g4 f3 b4 f4 e4 h3 e5 f2 g5 h6 g6 h2 d6 c4 d5 a4 e6 f3 b6 a3 e7 a2 b7 Qc7 b5 Nf6 Kb4 c3 b6 c2 g7 Nfd7 g8Q Rh7 Nh3 Nf6 Bb2 c1B Bb5+ Nbd7 b8R f1N b7 f2 Ba4 Ra7 Nf4 Rf7 Ng2 Ne4 Bh8 Neg3 Na3 Bf4 Rc1 a1B Rc2 Ra5 Ra8 Bd4 b8Q Ra6 Ra7 Rb6+ Ka5 Bc5 Rg1 h1Q Qg6 Qb7 Qc7 Bg7 Qc6 Bgd4 Qb5 Qc7 Qbe2 Bb7 Qc4 Qh5 Rh1 Bc6 Rg1 Nf6 Rh1 Qb7 Rg1 Kd7 Rh1 Kc8 d7+ Kc7 e8Q Ng4 Rg1 Qh1 d8N Kc8 d6 Bd5 Qee1 Rf6 Qee4 Qg7 Nf7 Bde3 Ne5 Kd8 Qed4 Nd2 Qb1 f1Q Ne1 Bg5 Ng2 Rf3 Nd3 Bf2 Qe5 Bf4 Qc1 Qd1 Re1 Ndf1 Qd2 Qb1 Rec1 Bg5 Qd1 Bf4
4n1Q1/bQN4n/1nP1bQN1/rB3rp1/1NQ2q2/1B1RBrk1/4n3/b1qK1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 Ke7 b4 Ke6 e4 Ke5 c4 g5 c5 a5 c6 d5 b6 f5 b5 f3 h6 a4 h5 d3 b7 a3 b6 a2 h7 f2+ Kd2 Kf4 h6 d4 e5 Na6 b8Q Be6 b7 Kg3 Nf3 f4 Qe1 Nc7 Nh4 f3 Qe2 Bc5 Ng6 Qf6 Na3 Ra5 Kd1 d2 Nb5 Ne8 Qc4 Ba7 Nc7 Qf4 Rh4 Ngf6 Rh3+ Kg4 Qc8 Rf8 h8Q Nh7 b8N Rf5 Bd3 f1N Qf6 f2 Qb7 Ng3 Nba6 f1N Nb4 Ne2 Rb1 a1B Rf3 Bd7 e6 Bc8 e7 Be6 Rf2 Kg3 Rb3 Nh2 Rc3 Ng4 Rf1 Ne5 Rb3 Nd7 Rc3 Nhf8 h7 Nb6 h8Q Nh7 Rb3 Qd6 Qg8 Qf4 Kc2 d1R Be3 Rb1 Rc3 Rb3 Kd1 Nd6 e8B Rba3 Bf7 Ne8 Bc2 d3 Ba4 d2 Rd3 Rb3 Bb5 Rc3 Rd8 Rca3 Bg1 Re3 Rd3 Rf3 Be3 Kh3 Qc5 Kg3 Kc2 Bc8 Bb3 Be6 Qcd4 Nc1 Qc4 d1Q+ Kb1 Qe1 Kc2 Qc3+ Kd1 Ne2 Nca6 Qb2 Nc7 Qc1+
R1RNRn2/Q4rQ1/1rP3N1/1qb2p2/4B3/nq2BbNB/2qn3K/bNkb4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kg2 Kf6 e4 Kg5 c4 a5 b4 d5 b6 f5 h6 d3 b5 d2 b7 d4 h7 d3 c5 a4 b6 f3+ Kg3 f2 h3 a3 e5 a2 e6 Qc7+ Kg2 Kf4 e7 Ke3 e8B g5 h4 g4 h5 g3 h6 Nf6 Qh5 Ra7 Kh3 g2 Rh2 Nd5 Ne2 g1Q Qg4 Nd7 b8Q Nb4 b7 Nc2 Qg7 Na3 Ng3 Qh1 Bf7 Qhc6 Bd5 Qb5 Be4 Ra6 Bfg2 f1N Qa7 Rb6 b8R Bb7 Rc8 Be7 Rh1 Rf8 h8N Rf7 h7 Nf8 Ng6 Ba8 h8N Qb7 Bb2 d1B Bc1+ Nd2 Kh2 Qd5 Bh3 Qdb3 Rg1 Bd5 c6 Bc5 Bh1 B5f3 Re1+ Kf2 Ree8 Qc2 Nf4 Qcb3 Ne6 Ke1 Ng6 Qc2 Nc3 Qcb3 Rb1 a1B Nd8+ Ne4 Be3 d2 Rc1 Qc2 Nb1 Qcb3 Nf1 Ke2 Rc4 Kd3 Ra4 Kc2 Ng3 Kc1 Bd4 Bc2 Bf2 d1Q Be3+ Nd2 B1g2 Bd3 Ra5 Qdc2 Ra6 Bd1 Be4 Bf3 Qe7 Bde2 Raa8 Bd1 Qd7 Q3b4 Qa7 Qbb3
RbB1r1b1/3nbk1N/1P3n1Q/3rR1q1/K3qB2/3RQr2/1QN1p1r1/2n1Q2N w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 h5 d4 a5 Kd2 e5 Kc2 c5 Kb3 c4+ Ka4 e3 b4 h3 f4 e2 g5 e1B f5 c3 f6 h2 d6 c2 d5 e4 g6 h4 f7+ Kd7 b6 h3 b5 e3 b7 e2 g7 Ra6 Na3 Ra8 Bf4 c1N Nc2 Be7 f8N+ Ke8 d7+ Kf7 d6 Bc3 Nh7 Be5 Qe1 Nf6 g8R Ra7 Rg3 Re8 Rd3 Ra8 b6 Rg8 Raa3 Rg2 Ra2 Qg8 d8Q Be6 d7 Qg5 Qh8 Bd5 d8Q Nbd7 Qc7 Re8 Qcc3 Bb8 Qb2 Be6 Nf3 Bc4 Nfd4 Be6 Rg1 h1Q Nf5 h2 Ng3 Bd5 Nf8 Bc4 Qh6 Be6 Nh7 Bd5 Kb5 a4 Ra1 a3 Ka4 Bbd6 b8Q a2 Qc8 Bb8 Qcc3 Bc4 Rb1 a1R+ Qca3 Rf2 Bh3 Qe4 Nh1 Rf3 Rg4 Ra2 Rh4 Ra1 Rh5 Ra2 Ra1 Be6+ Qbb4 Rb2 Qd4 Rb5 Qb2 Bc4 Qe3 Rd5 Ng3 h1R Bg4 Rh2 Nh1 Nf8 Bc8 N8d7 Raa3 Qg7 Re5 Rg2 Rab3 Qg4 Rb5 Qgf5 Ra5 Qg5 Ra8 Rb5 Qh5+ Kg7 Qbd4 Bg8 Qh6+ Kf7 Qdb4 Rd5 Qbd4 Qef5 Qb2 Qe4+
Q1RR4/BB2k3/P4n1Q/N1N2rbq/R2Rn1Qb/pb5N/6rK/qr1n1n2 w - - 0 1 illegal: No possible last move
2qR4/1QnR4/prRr1Q1R/q3B1bQ/3b1q1b/PnN2B2/1kN1N1q1/1r1K4 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 d4 Kd7 c4 Ke6 f4 h5 g5 b5 a3 b4 g6 a6 g7 b3 c6 b2 c7 h4 c8N e3 c5 Kd5 c6 e5 f5 h3 c7 e2 f6 Kc4 d5 h2 d6 e4 d7 Nc6 f7 Rb8 Qd2 Kb3 Nb6 Nge7 c8R Ne5 g8R Nd5 Rc6 Bh6 f8Q Nc7 Re6 Bg5 Qe7 Rh6 Ra2 Qc8 Nd5 Rb6 Nbc3 b1R Rc6 Rd6 Qe3 Nd3+ Kd2 e1B+ Kd1 Bf2 Qf3 e3 Nge2 g1Q d8Q g2 Qh5 Bfh4 Rd2 Qf2 Nb4 g1B Bg2 Qf4 Nc2 Bgf2 Qdf8 Bg1 Qff6 Bgf2 Rg1 h1Q Bf3 Qg2 Rh1 Qa4 Ng1 Qf4 Qhf7+ Ne6 Ne4 Rd7 Qh8 Bhg3 Qhf6 Rd5 Rh6 B3h4 Qb7 Nc7 Qh5 Ka2 Ke2 Rd4 Bb2 Nc1+ Kd1 Rd8 Be5 Kb3 Rd4 Kb2 Ne2 Bg1 N2g3 e2+ Ke1 Rd7 Rdd6+ Bd4 Rd8 Re7 R6d7 Re6 Ne3 Rd6 Kd2 Ka2 Kc2 e1Q+ Ne2 Qc3+ Kd1 Kb2 Nc2 Qa5 N4c3 Nb3+
nrq1QNK1/k3b2B/p2P4/B1RR1q1n/2n3QB/rb1N4/Q1rR2R1/r6b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb7 e4 h5 g4 f5 d4 a6 b4 c4 b6 h3 g5 f3 b5 f4 d6 c3 d5 c2 d7 h4 Ke6 f2 Kf7 h2 d6 h3 g6 f3 e5 Be7 e6 Rh4 g7 Rh7 Ra2 Qc7 d8B Qc5 Bg5 c1R Ne2 Nf6 Nd4 Ng8 Na3 Rh4 Rg1 h1B Nac2 h2 Bd3 f1Q Ne1 f2 Rg2 Bf8 e7 Bg4 e8Q Rh7 Rd2 Nd7 Ne6 Ngf6 Bh4 Nh5 Kg8 Be7 Nf8 Rc2 Qa1 Qc8 Qa2 Rh6 Bh7 Bd1 Nd3 Rb8 Bc7 Ka8 b7+ Ka7 Ba5 Rf6 Bg3 Rf3 Bh4 Ra8 b8R Nb6 Rg3 Qfh3 Rg2 Qcf5 Rd8 f1N Rc8 Rb8 Rc5 Ne3 Rd5 Na8 b6+ Kb7 Rc5 Nc4 Rd5 Qc8 Rc5 Qhf5 Rd5 Nc7 Rc5 Ka8 b7+ Ka7 Rd5 Rc1 Rc5 Bb3 Rd5 Rc2 Rc5 Ra8 b8R Re3 Rbb5 Rb8 Rd5 Na8 Rbc5 Ba4 Nb2 Ra3 Nd3 Bb3 Kh8 Qcd7 g8Q Qde6 Qg4 Qc8 Rg3 Be4 Rg1 h1R Rgg2 Ra1 Kg8 Bf3 Rgf2 Bh1 Rh2 Rg1 Rhg2 Ra1
1k1KN3/2N3Pq/1rQ3QN/QBn2bq1/n3b3/1nBbb2R/rp6/1R2QBr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 b5 d4 c5 a4 Kc7 f4 c4 d6+ Kb7 d5 b3 d7 b4 d6 h6 a5 c3 f6 b2 Kf5 h5 Ke6 b3 g4 e4 g5 e3 a6+ Ka7 f5 e2 g6 e1N f7 c2 g7 h3 f6 h2 Na3 b1B Nf3 h4 Nb5+ Kb6 a7 Kb7 Nd2 b2 Ne4 h3 Nc7 Nh6 Bd2 c1R Bc3 Nd3 Qe1 Be7 f8Q Nf5 f7 Na6 Qe8 Bg5 f8Q Rh6+ Qg6 Be3 Qe8 Qg5 Nf6 Nd4+ Ke7 Ndc5 d8Q Na4 d7 Nb3 Bb5 Bd3 Rb1 Rb8 a8B+ Ka7 Ne6 N6c5 Bg2 Ra8 Qa5+ Kb8 d8N Ra7+ Nc7 Bcf5 Qc6 Rd1 Rf1 h1Q Nf7 h2 Kd8 Ra8 Bh3 Qe4 Rf2 h1B Rf3 Qeh4 Rg3 Bhe4 Bf1 Ra6 Rh3 Rb6 Ke8 Rh8+ Ke7 Qh7 Nh6 Rc8 Ne6 Rc7+ Kd8 Ra7 Nc7 Rd2 Ng4 Rg2 Nh6 Rg1 Qa6 Ra8 Bd2 Nc3 Qa2 Qg2 Nfe8 Ra5 Qa4 Ra7 Qb4 Ra2 Qa5 N3a4 Bc3 Qg5+
4r1Q1/qK1RN1Pq/r2qBn2/5N1p/3Q2N1/Nn2R3/1QRbb2b/r4bBk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 h5 g4 c5 b4 a5 d4 c4 b6 f6 b5 h3 b7 a4 g5 c3 b6 c2 g6 h2 g7 f3 Ra2 f2 Nf3 a3 Bh3 f1R Ne5 Be6 Be3 c1B Bg1 Rf2 Ng4 Bd2 Rc2 a2 Na3 Nc6 b8N a1Q b7 Na5 Nc6 Qc1 Ne7 Nb3 b8Q+ Qc7 e3 Rf1 Qb5 Ra6 Qb4+ Kd7 d6 Bc4 d5 f5+ Ke5 f4 e4 f3 Qe2 Bd3 Qd4 Qb6 Qg2 f2 Nf5 Ke8 d7+ Kf7 d8Q Kg6 d6 Nf6 d7 Kg5 Qe8 Bc4 d8N Be2 Nc6 Bd6+ Ke6 Kf4 Qg8 Rd1 Nce7 f1B e5+ Ne4 Rc8 Qcc5 Kd7 Ra1 e6 Bc7 Rd8 Qbd6+ Kc8 Bb8+ Kb7 Bc7 Qf7 Re8 Rd7 Bb8 Qg8 Bc7 Qb2 Nf6 Qf2+ Ke4 Qfd4+ Kf3 Be3 Bb8 Rg1 h1Q Rg2 Qhh2 Bg1 Qhe5 Ng6 Qe3 e7 Qh6 Rh2 Qh7 Rg2 Rf8 e8R Bc7 Nge7 Bb8 Red8 Re8 Rc8 Qa5 Rc2 Qac5 Nf2 Bc7 Rg4 Bb8 Re4 Bc7 Bg4+ Kg2 Re3 Bb8 Nh6 Bc7 Be6 Bb8 Nfg4 Kh1 Nc8 Qf8 Nf5 Bh2 Ngh6 Qfe7 Ng4 Qed6 Nce7 Qa7+
2K1bn1k/Br3PR1/QN3QRb/2Qp1N1q/7n/2Rn2Nr/1nQ1B1qr/7b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Kg4 a5 f4 e5 b4 d5 c4 e4 b6 d3 b7 d2 c5 a4 b5 a3 b6 h3 c6 h6 c7 h2 Nf3 e3 Nh4 e2 Qc2 d1B Nc3 e1R+ Be2 a2 Be3 Qe8 Rc1 a1N Rg1 h1Q Ne4 Nc6 b8N Qf7 b7 Na5 Ng3 N1b3 Ba7 Nc5 Nd7 Nc4 b8Q Ne7 Qb6 Rb8 Qa6 Rb7 Nb6 Bd7 c8Q Ne6 Qc5 Ng6 f6+ Kg8 Kf5 h5 Nc8 Nb2 Nb6 Qe8 f7+ Kh7 Kf6 Bh6 Nhf5 h4 f8Q h3 Qfd6 Qg8 Qdc6 Nh4 Ke7 Nf8 Kd8 h2 Qf6 Be8 Kc8 Qg4 Qb1 Bf7 Rc3 Qh5 Qc2 Be8 Ne4 Re7 g4 Qg2 g5 h1N Neg3 Rb7 g6+ Kg8 g7 Nf2 Qe3 Nfd3 Qc5 Kh7 g8R Rf1 Rg6 Rf2 Ne7 Rf3 f5 Rf2 Qe6 Rf3 f6 Re3 f7 Rf3 Nh1 Rh3 Ng3 Rh2 Nef5 Rh3 Bf1 Bf3 Qee7 Qh2 Qd8 Bh1 Be2 Qg2 Qg5 Rg8 Qge7 Kh8 Qf6+ Rg7 Qg5 Rh7 Rg7 Qg6 Qf6 Qh5 Qd1 Rh2 Ne4 Qgf3 Qg6 Qg5 Qc2 Ng2 Qc1 Qgg3 Bf1 Bf4 Be2 R7h3 Qf6 Nh4 Qc2 Bh6 Rg2 Qgf2 R2g6 Qh5 Neg3 Qg2
6nk/r2qQp2/2q5/RN1B2b1/5QBK/Nbnb1PrQ/q2nQ3/RNq1B3 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 c4 a5 d4 e5 g4 h5 d5 a4 g5 e3 c6 h3 b6 h2 c7 e2 b7 h4 g6 h3 d6 e4 c5 a3 g7 a2 c6 Na6 b8Q Ra7 Bg2 Qd7 Bd2 Nb4 Na3 Nd5 Nf3 Nc3 Qbb3 Bb7 c8B Ba6 c7 Bd3 Rg1 h1Q Qb8 Nh6 g8Q h2 Qg4 Rg8 Qh3 Rg3 Rf1 Ng8 Qc2 Qd8 Bg4 Bh6 c8N Kf8 d7 Kg7 Qf4 Kh8 Nd6 Qc7 d8Q Qd7 Rb1 a1Q Ndb5 Qa2 Qe7 Qg1 Rb4 h1B Ra4 Qh2 Ra5 Qad5 Ne5 Q5c6 B2f3 Bg2 Rh1 Bf1 Nb1 Bc4 Qd3 Bb3 Nc4 Qg2 Nca3 Qh2 Be3 Qg2 Bc5 Qh2 Bb4 Qg2 Kd2 e1N Ke3 Be2 Qd2 Bd3 Qe2 Qh2 Qfg5 Qg2 Kf4 e3 Bd5 Nf3 Rc1 Nd2 f3 Qb6 Rc2 Qbc6 Ra2 Qh1 Ra1 Qc1 Qf2 e2 Qfe3 e1Q Q3e4 Qe8 Qe2 Nde4+ Kf5 Qed2 Qge3 Qa2 Qf4 Na4 Be1 Nac3 Qhg2 Bg7 Qgf1 Nd2+ Kg5 Bh6+ Kh4 Qed7 Qh3 Bg5+
bqN5/q1kPqQ2/1bn2Q1r/BKR1N1r1/2r1R1pQ/rb5B/4Q3/1n2RB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kd3 c5 Kc4 a5 h4 f5 e4 a4 b4 a3 d6 a2 b6 f3 b5 f2 d5 g3 b7 g2 e5 f4 b6 f3 h5 Nc6 b8Q Ra5 e6+ Ke8 e7 Kd7 b7 Qb6 e8B+ Kd8 d7 Rh6 Bd2 Nge7 Qe2 Ra3 Qa7 Kc7 b8R+ Bb7 Nc3 g4 Re1 a1Q Na4 Qf6 Ba5 Bg7 Bf7 Qd6 Re8 Bd4 Bg6 Qe6 Be4 Qe5 Nh3 g1Q Nf4 Qg3 Bh3 f1R Nd3 f2 Beg2 Qf6 Ne5 Qd6 Qa6 Ba8 Qb5 Qe3 Qb3 Qg5 Rc1 Re1 Qbf3 f1B Qf7 Rd1 Rc2 Rdd3 Rc3 Rf3 Rc2 Rf5 Rc1 Qgf6 Re1 Rg5 d8Q+ Kb7 Rh2 Qa7 Nb6 Qdb8 Kb5 c4 d6 c3 d7 c2 Nc8 Nd5 Qde7 Qe6 Qef6 c1R Rh1 Bb6 Rh2 Rh8 h6 Qe7 h7 Kc7 Rh1 Rc4 Rg1 Rhg8 h8Q R8g6 Qh4 Rh6 Rc1 Rf4 Rc5 Rc4 Qb2 Be2 Re1 Bd1 Qe2 Bc2 Bf1 Bb3 Qh8 Nf6 Qhg7 Ne4 Qgf6 Nd2 Nd3 Qd6 Re4 Qe7 Ne5 Nb1
1b5r/N1qPQb1k/NnQNB1rr/1pQR4/n7/B1q2nK1/5R1R/2rb2Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 Kg7 g4 c5 f4 e5 Kf2 b5 f6+ Kh6 f7 c4 a5 b3 a6 e4 f5+ Qg5 a7 h3 f6 c3 d6 c2 d7 e3+ Kg3 b2 d8R e2 d5 e1N d6 h2 Bh3 Nd7 Nf3 Nb6 Nc3 b1Q Ra2 Qa1 Ne4 Be6 Qd5 Qc3 Ba3 c1R Qc6 Qg7 Rf2 Na4 g5+ Kg6 Bg4 h5 Rd7 Rd8 a8N Ne7 Nc7 Nc8 Na6 Kh7 Bh3 Be7 f8Q Bf7 Be6 Ncb6 Qe8 Rc8 Qc5 Rc6 g6+ Kh6 Qa8 Bd8 Qc8 Bc7 Rd8 Qh7 g7 Bb8 g8Q h4+ Kh3 Qb2 Nd4 Nf3 Qg1 Qc3 Kg2 h3+ Kg3 Bh5 Qb7 Qc7 f7 Kh7 f8Q Bg6 Qe7+ Bf7 Qc4 Rc5 Nc6 Rf5 Na7 Rf6 Qc5 Rh6 Qe1 Rf6 Rg1 h1B Rgg2 h2 Qg1 Kg7 Qbc6 Rhh6 Rb2 Kh7 Rgf2 Bg2 Rbd2 h1R Rd5 Bf1 Rh2 Be2 Rf8 Rf4 d7 Bd1 Nd6 Rf6 Qd8 Kg6 Qe7 Rh8 Rf2 Kh7 Rg8 Rh5 Rg4 Rhh6 Rh4 Be2 Rh1 Bd1 Rhh2 Rg6+
4Q3/3Pq3/RKnR3b/pB1N3Q/1nb1k1r1/1RB2r1N/1q2Nb1r/R4nnB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 g4 a5 b4 c5 e4 h5 b6 f5 b5 h3 b7 h2 b6 f3 Ke3 c4 g5 f2 g6 h4 g7 h3 Bb2 c3 Bg2 f1R Qh5 c2 Bc3 Nc6 b8R Rf2 b7 Nf6 g8N Be6 Ne7 c1B+ Kd3 f4 Kc4 f3 Kb5 Qd7 Kb6 Be3 Rd8 Bf7 b8R Bfh6 Rb7 Bg8 Ra7 Rf1 Ra6 f2 Ra3 Ra7 Rb3 Rc7 Be1 Be6 Nc3 Rg8 Nce2 Rg4 Bc3 Rc8 Nf3 Bg8 Rg1 h1N Ng5 h2 Nh3 Ng3 Bf3 h1Q Bg2 Qh2 Bh1 Ra1 Rgb1 Ra2 Ra1 f1N Rf8 Qe6 e5+ Kd7 d6 Bf2 Nd5 Qe7 Rd8+ Ke6 d7 Rd2 Ng5+ Kf5 e6 Qg2 Nh3+ Ke4 Qe8 Qa3 e7 Rd3 Qh5 Rf3 e8B Qe7 Ne3 Bc4 d5 Ra8 d6 Qh2 Rb8 Ra7 d8Q Rd7 Qc8 Rd8 Bd7 Rh8 Qce8 Qg2 Rd8 Nd5+ Kb7 Ndb4 Kb6 Nd4 Bb5 Ndc6 Nd4 Ne2 Nd5 Ng1 Rd7 Bh4 Rd8 Qb2 Ne2 Rhg8 d7 Rg2 Rc8 Rh2 Rc7 Rg4 Rc8 Nd4 Rc6 Bf2 Rd6 Ndc6+
3q1b1Q/N2Pq1Nr/NpQ4Q/4rr2/5B2/3n2KN/k1B2rbR/q2Rbn1B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 f4 Kd6 Kf2 h5 g4 c5 a4 e5 f6 e4 f7 e3+ Kg2 h3+ Kg3 h2 a5 c4 g5 b6 f5 e2 f6 b3 g6 c3 a6 c2 a7 b2 g7 Rh7 Nd2 b1R Nb3 Rb2 Nc5 Nd7 Nh3 Ne7 g8Q Ne5 Na6 Bb7 Bf4 c1R Qc2 Re1 Qh8 Rb5 Rd1 h4+ Kf2 Rc8 a8B Nf5 Bg2 Rc4 Be4 Ng3 Qc1 Rcc5 Bc2 Nf1 Kg2 Rb2 Kf2 Kd7 d6 Ke6 d7 Bg2 d5+ Kd6 Bc6 Qe7 d8N Rcb5 Nc7 Kc5 d6 Kb4 d7 Ka3 Na6 Ka2 Bf3 Rc5 Nc6 Rd5 Na7 Rdb5 Rg1 h1Q Ba8 Qh2 Rh1 Qd8 Qd2 Ra5 Qd6 Rc5 Qc6 Qg3+ Kg1 Qa3 Rh2 Nd3 Bb7 Rf5 Ba8 Bh6 f8N Qae7 f7 Bg7 Ne6 Bf8 Nhg5 h3 Bb7 Bh6 f8Q Bg7 Qf6 Bf8 Ng7 Rb4 Bd6 Rbf4 Qh6 Rf3 Bf4 Rf2 Rd2 Rb1 Ba8 e1B Rd1 Rbb5 Rh1 Nd2 Kh2 Rbe5 Kg3 h2 Nh3 Rb5 Rg1 h1Q Bb7 Rbe5 Ba8 Be4 Rg2 Bd5 Rh2 Bg2 Bb7 Nf1+ Kg4 Be4 Qc7 Ng3 Rb1 Bd2 Bc6 Qc1 Qb7 Qb2 Rd1 Be1 Qc7 Bh1 Be4 Qa1 Qcc6 Bg2 Bf3 Bf1 Bh1 Bg2 Nc7 Nf1 Na6 Nd2 Kg3 Nf1+
2n1bBKQ/2P3rp/R1rb2q1/3nr2N/2qB1N2/RQ1b3B/3Qn2k/N2n2N1 w - - 0 1 illegal: No possible last move, all moves rejected
1b1KR3/1QpQ2nR/qRn3qN/3r3Q/1N1rq3/BNn2b1n/r1P1B1N1/6k1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Kf7 Ke3 Ke6 Kf4 h5 b4 a5 g4 d5 g5 h3 f3 e3 b6 e2 g6 e1Q g7 h2 b5 d4 b7 Kd5 b6 d3 e6 Kd4 Kf5 a4 f4 d2 Qe2 d1N Nd2 a3 Nc4 h4 Rb1 h3 Ne3 a2 Ng2 a1Q Ba3 Rh4 Qh5 Bc5 Be2 Ne7+ Kf6 Qe8 g8N Nc3 f5 Nbc6 b8Q Bb7 Nh6 Re4 Rb5 Re5 Qd8+ Rd5 Nf3+ Ke4 Rb1 Ra4 Rb5 Rad4 Qd7 Ba8 b7 Ba7 Rb1 Bb8 Rb6 Qa2 Ne5 Qc4 Nd3 Qa6 Nb4 Qg3 Ra1 h1N Rb1 Nf2 Rh1 Qg4 Rh2 Qeg8 Rh1 Q8g5+ Kf7 h2 Ke8 Qe3 f6 Qg6+ f7 Nf5 e7 Nh3 Rg1 Na5 Rh1 Ng7+ Kd8 Qed3 f8N Nc6+ Kc8 Qf3 Ne6 Qf4 e8R Qff5 Ne1 Ke3 Nc5+ Kf2 Nb3 Qfg4 Ng2 Q4e4 Rg1 h1R Rb1 Na7+ Kd8 Rf1 Rd1 Kg1 Rd3 Ra1 Rf3 Ra2 Rf7 Nf5 Rh7 Ng7 Bf3 Nc8 Bd1 Ne7 Be2 Ba7 b8Q Bc6 Qb7 Bb8 Qc8 Ba8 Qb7 Nc6+ Kc8 Qe3 Re4 Nd8 Re8 Rf5 Qd6 Qed3 Kd7 Rb5 Qc8 Bf3 Qb7 Rbd5 Kc8 Nc6 Qd7 Na7+ Kd8 Qdf5 Ng8 Qe4 Nh6 Nc6+
3nn3/1RpRrrN1/1bN5/2Q5/N2nrb1N/1kPq1Bnq/1B1B4/Qb1K1R2 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 g4 Ke7 b4 Ke6 f4 d5 g5 h5 g6 a5 g7 d4 c3 Kd5 f5 d3 b6 Kc4 e6 h3 f6 a4 b7 h4 e7 e3 e8R a3 f7 a2 b5 e2 b6 h2 Nh3 Ra4 Bg2 Bd6 f8B Rh7 Bd2 Bf4 Ng5 h3 Ba3 Nf6 g8Q+ Rf7 Rf1 h1Q Qf8 h2 Bb2 Nc6 b8N Bf5 Re7 Ne8 b7 Qd6 Na6 Nd8 Qc1 Kb3 b8N Re4 Bf3 Qg2 Rd7 h1N Ne6 Qh3 Nc6 Ng3 Ng7 Bg6 Na3 Rfe7 Rb1 a1N Nc4 Nc2+ Kf2 Rf7 Ne3 Nd4 Ng2 Qd5 Nh4 e1B+ Kg1 Qdf5 Qc5 Ree7 Nab4 Bh7 Nd5 Bg6 Nb6 Qd5 Be3 d2 Na4 d1R Bd2 Be4 Be3 Bd2 Kf2 Re1 Qd1+ Bc2 Qc1 Qdf5 Qd1 Bc1 Bd2 R1e5 Qe1 Qd3 Qd1 Be3+ Ke1 Re4 Ba3+ Ka2 Rb7 Bb1 Bb2 Bg1+ Qe2 Be3 Kd1 Bf4 Nb4+ Kb3 Nc6+ Nb5 Qef2 Be3 Qa7 Bb6 Qc5 Nd4 Qa3+ Kc4 Qa1 Kb3 Qa5 Nd6 Qe5 Ne8 Qc5 Qa6 Be1 Bf4 Bd2 Qd3
2K1n2n/bRp1q3/k1N1bQ2/b4n2/BPq2nN1/BQ2qrBQ/3R1QN1/7r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 a5 Ke5 f5 b4 h3 g4 h2 e4 f3 d4 f4 d6 f2 b6 Kc6 g5 Kb7 g6 h4 g7 a4 d5 a3 d7 h3 Ke6 a2 d6 f3 e5 Ne7 g8Q Rh7 Qc2 Rh8 Nd2 Ra6 Ne2 Ra3 Nc4 Ka6 b7 Ng6 Ne3 Qg5 Ng2 Qe3 Nd4+ Rd3 Be2 f1Q Nc6 f2 Ba3 Qe1 Bd1 f1Q Qf2 Qfe2 Rf1 h1N Ba4 h2 Rg1 Qc3 Rgd1 Ng3 Rd2 h1N Qgf7 Bh6 Q7f3 Nh5 Qh3 Ngf4+ Ke7 N1g3 d8Q Ng7 e6 Nd7 b8Q Ne5 d7 Qc4 Qf8 Rb3 Kd8 Neg6 e7 N3f5 e8N Rc3 Nf6 Ne8 Qe7 Bf8 Qg7 Bc5 Ng4 Bb6 Qe7 Ba5 Qf6 Bb7 Qc8 Rh4 Qhf3 Rh1 Qh3 Rd3 Qb8 Ba8 Kc8 Nh8 d8B Rb3 Be7 Rc3 Bd6 Qe7 Qg7 Rf3 Qf6 Q2e3 Be5 Nh5 Bg3 Nf4 Rad1 a1B Rd5 Bb2 R1d2 Bd4 Rb5 Ba7 Rb7 Q7c5 Kd7 Qce5 Qbd8 Q5e4 Kc8 Qe7 Qd3 Rc1 Nd4+ B7b6 Qb3 Rh1 Rb8 Bd5 Nc6 Ba7 Rb7 Be6+
r1R2q1q/1PpqnQ2/n2b3Q/1R2b3/2bNB3/N3B1kb/NQ1n4/1R1rN1K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 e4 a5 d4+ Kf6 g5+ Kg6 b6 f5 e5 h5 e6 h3 d6 h4 d7 h2 b7 h3 b5 a4 b6 f3 d5 Kh5 e7 Kh4 e8R a3 d6 a2 g6 f4 g7 Ne7 g8Q Rh5 Na3 Rg5 Bd3 Rf5 Be3 Rfa5 Qd2 Rd5 Rb1 a1B Rb5 Na6 b8Q Be5 Qf7 Rd4 Kf1 f2 Be4 Kg3 Nf3 Rd3 b7 Rd4 Qb2 Rd1+ Ke2 f1N Ne1 Nd2 Rf1 Kg4 Kf2 h1B Kg1 f3 Qa7 Kg3 Qb6 Bh6 Qc6 Bhf4 Rh8 Qe8 d8N Qd7 Ne6 Bg2 Qcc1 Bh1 Nd4 Bg2 Rf2 Bf1 Re8 Bc4 Rf1 Qd8 d7 f2+ Kh1 h2 Rh8 Qf8 d8N Qe8 N8c6 Bh3 Nb4 Qd7 Na2 Bd6 Re8 Bfe5 Rc8 Kh4 Rg1 f1Q Qd5 Qf8 Qf7 Bhe6 Kg2 Kg4 Rf1 h1Q+ Kf2 Qhh8 Kg1 Nb1 Qcd2 Bf5 Qh2 Nd2 Qh6 Kg3 Nec2 Rc1 Rd1 Bh3 Ne1 Rc2 Ra1 Rc1 Rb1 Rd1
1n2B1Qq/Bp5N/1Q1r1b1R/rq1RqbK1/N2N3r/1b2P1n1/1N1R2B1/k4q2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 d4 h5 g4 f5 a4 c5 g6 h4 g5 b3 g7 b2 g6 c4 a5 h3 a6 c3 a7 h2 Bg2 c2 Nc3 b1R Ra5 Qc7 Be3 c1Q Na4 Q1c4 Qb3 Qb5 Nb2 Qbc5 Nh3 Qb5 Ng5 Nf6 g8B Ne4 g7 Rh4 Bf7 Ng3 g8Q Bg7 Nh7 Rd1 Be8 Qe7 Bg1 Qe5 Ra2 Kc7 d6+ Kb6 d7 Rd3+ Kf2 f3 d8N f4 d5 Kc5 d6 Bf5 d7 Kd4 Qbe6 Kc3 Qb6 Kc2 Nc6 Kb1 d8R Rd5 Nd4 Rd6 Ke1 f2+ Kd2 f1B Be3 Rg6 Rd5 f3 Bf2 Rd6 Bg1 Qf6 Ke3 f2 Kf3 Rh3 Kf4 Qe5+ Kg5 Rh4 Bf3 B1h3 Bg2 f1Q Ra3 Qe6 Rd3 Ka1 Rd2 Bc2 Bf2 Bhf5 Bg1 Qe5 Be3 Na6 Bf2 Bb3 Be3 Rad8 a8N Nb8 Qc5 Rhh6 Ne6 Qg1 Nhf8 Ra6 Nb6 Rd6 N6a4 Ra8 Qc6 Ra5 Ba7 Qd1 e3 Qdf1 Qb6 Rh3 Rg1 h1Q Nd4 Qh2 Rh1 Rh8 Qe6 Qh7 Rh2 Qg8 Qf7 Rhh6 Nh7 Qh8 Qg8 Qd7 Rh4 Qdb5 Rf4 Rh2 Rh4 Rh1 Rh5 Rh4 Rh6 Bf6+
1bqQ4/1pN2Nk1/n1bnRNP1/4Q2r/1Q3B1B/1qQRbB2/1r3b1q/r4K2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 g4 h5 a4 e5 f4 c5 d6 e4 f6 c4 f5 e3 g5 c3 d5 b3 d7 e2 d6 b2 a5 c2 a6 h3 a7 h4 Qd2 h2 Nh3 Rh5 Qc3 Nh6 g6+ Kg8 Ra3 Be7 f7+ Kf8 Bg2 Ng4 Bf3 Nf2 Nd2 b1Q Ne4 Qb3 Bf4 c1B Nf6 Be3 Ng5 Kg7 f8N h3 Nf7 Qc7 d8Q Ne4 d7 Na6 Qe8 Qc6 d8B Bd6 Qee5 Bd7 Rg1 Rc8 a8Q h1R Be7 Re8 Qd8 h2 Rf1 Bb8 Rg1 Nb4 Ra6 Qc8 Re6 Nd6 Rf1 Bd2+ Kf2 Ba4 Rd1 e1B+ Kg2 Be3 Rd3 Bg1 Kf1 Bc6 N8h7 Bef2 Nd5+ Kg8 Bh4 Na6 Nhf6+ Kg7 Nc7 Be3 Ncd5 Bgf2+ Ke2 Rb1 Nc7 Rb2+ Kf1 Rg8 Qd2 Qd7 Qe7 Qd5 Rd4 Nb5 Qeb4 Ba7 Nh6 Nc5 Qdc3 Qb3 Rd2 Ra8 Nfg4+ Kf8 f6 Qc8 Rd3 Bb8 f7 Ra4 Re7 Na6 Nf6 Kg7 Re8 Bg1 Re7 h1Q Re8 Qh2 Re7 Qg8 Re8 Bgf2 f8Q+ Kh8 Qfe7 Nd6 Nf7+ Kg7 Qd7 Raa2 Re6 Qc8 Qd8 Ra1+
1N1rN1k1/P2r2B1/4nqQ1/5q2/1rR4n/B1BnbBK1/qp2RR1Q/Qb4q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 c5 g4 e5 f4 b5 Kf2 h5 a5 c4 g5 c3 a6 c2 g6+ Kg7 a7 e4 d6 b3 d5 b4 d7 h3 d6 h2 Ne2 e3+ Kg3 b2 Nd2 b1R Nc4 b3 Ba3 c1Q Ra2 Na6 Bg2 Nh6 f6+ Kg8 f5 Qc2 g7 Qd3 Nd4 e2+ Bf3 e1N Re2 Nc5 Nc6 Rh7 Nb8 Ne6 Qc1 Qe7 d8B Bb7 d7 Be4 Rg1 h1Q Nd6 Qa6 Qc2 Nd3 Rc1 Qf1 Ne8 Rb2 Ba5 h4+ Kh2 h3 d8Q Qf7 Kg3 h2 Bc3 h1Q Qd4 Bc5 Qe5 Qf8 Qb1 Be3 Qa1 Qh5 Rcc2 Qb1 Qf4 Qa2 Qh4 Qb6 Qh2 Nf7 Rc1 Nfe5 Rcc2 Ng6 Rc1 Rh6 Rcc2 Nh4 f7+ Kh7 f6 Qf5 Rc1 Q8c5 f8B Kg8 Bh1 Rd2 Bf3 b2 f7+ Kh7 Nc6 Rd8 Nb8 Qf6 Rc2 Qcf5 Rc1 Ne5 Rc2 R2d7 Rc1 Bb1 Rcc2 Nd3 Rc1 Kg6 g8Q+ Qg7 Rcc2 Qd4 Rc1 Qdf6 Rh1 Qc5 Bb7 Qfg5+ Kh3 Bf4 Rc1 Qcg1 Bd2 Nd4 Rc4 Be3 Bc3 Rh5 Ba8 Ne6 Bg2 Qa5 Kg3 Rb5 Qh7+ Kg5 Qg8 Rb4 Qh7 Qh6 Bfg7 Kh5 f8R Qe5+ Rff4 Qf5 Rff2 Kg5 Bh8 Qhf6 Qf7 Kh6 Bg7+ Kh7 Qh5+ Kg8 Qg6 Qc1 Bf3 Qg1+
B4B1r/p2r4/n1R3BR/KnNq3q/1Nn1R3/bQ4P1/b1Nbr3/R1Q1bk2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 Ke6 c4 Kf5 b4 d5 b6 h5 c5 e5 g6 d3 Kc3 h4 b5 d2 Kb4 e3 g7 Ke4 b7 h3 g3 e2 b6 Kd3 f5 h2 f6 d4 f7 e4 Ba3 e3 Ka5 Rh7 c6 Na6 b8N Nf6 g8B Ne4 c7 Be6 c8R Nd6 Rc6 Nb5 Qc1 d1Q Nd7 Ba2 Bg2 e1B+ Nc3 e2 Nf3 Bd2 Nc5+ Ke3 Re1 d3 Nd4 Kf2 Nc2 Qd5 b7 h1R b8Q R1h2 Qb6 Rh8 Bh7 Rd8 Bg6 Rd7 Bf3 Bd6 f8R Rg2 Rh1 e1B Rh6 Kf1 Re8 Re2 Re4 Qh5 Nb4 Qb3 Nc2 Qbd5 Bb4 B2f4 Qb7 d2 Bh1 d1N Bf3 Bb1 Na2 Bfd2 Qb8 Nb2 Qg8 Qd3 Qb3 Qdd5 Bh1 Nc3 Ba3 Nb5+ Nab4 Ba2 Nb7 Be5 Rcc4 Rhh7 Rg4 Qd3 Rc5 Nc3 Nc6 Nb5+ Rc3 Qe3 Bf8 Rh8 N6b4 Qf3 Rc8 Qd3 Nc5 Bec3 Ba8 Qdd5 Rc6 Nc4+ Ka4 Bb2 Re4 Ne5 Ka5 Ba3 Rd6 Re7 Rb6 Rd7 Rc6 Nc4+
1n5N/b1n1Q3/2q2B1b/1N2R3/n1rn3K/5NBN/n3nRPp/Rb1krBQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kd6 d4 h5 b4 a5 b6 c5 b5 f5 b7 h3 b6 h4 Qd2 f3 Qc3 a4 Qc2 f4 Bd3 a3 Nc3 c4 Nge2 h2 Bb2 h3 Na2 c3 Qc1 c2 Re1 h1N+ Kg1 f2+ Kh2 f1N+ Kg1 f3 Nf4 Qc7 Qd1 c1N Re2 Nfg3 Kh2 f2 Nc3 a2 Qg1 Nf6 Rc2 Rg8 Bf1 Nfd7 Rd2 Nf5 e5+ Ke7 e6 Kd6 e7 Nhg3 e8R Qc6 Ree2 Rg4 Re5 Bh6 Rde2 Nc5 Nb5+ Kd7 d6 Na4 d5 Nd4 Rd2 Nge2 Rc2 Ne6 Bc3 N2d4 Rb2 Rh4 Kg3 h2 Nh3 Nc7 Rc2 Re4 Bb2 Re1 Kh4 Nc3 Rd2 Ra4 Rc2 Rc4 Rd2 Nba6 b8B Na4 b7 Nc3 Bd3 f1N Rf2 Ng3 Bf1 Na4 Bc3 Nge2 Bb2 Kd8 Bc3 Be6 d7 Ke7 d8N Kd7 d6 Bf5 Nf7 Bb1 Rc5 Ke6 d7 Bf8 Ne5 Bh6 Nf3 Kf6 d8N Kg6 Ba7 Nb8 Nf7 Kf6 Rh5 Ke6 Nh8 Kf6 Nhg5 Kf5 Nh3+ Ke4 Re5+ Kd3 Bc5 Kc2 Bd6 Nd7 b8Q Kd1 Qf8 Nb8 Qf7 Bf5 Rb1 a1B Qe7 Bb2 Ra1 Bb1 Bd2 Na2 Bg5 Bc1 Bf6 Bb2 Re3 Ba3 Bg3 Bc5 Re5 Ba7
4Nr1R/3R4/B2b2NQ/b5Q1/bRqBkpb1/2nr3B/bPKR3n/1Q1n3b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 d4 Kd6 Kd2 c5 e4 a5 b6 f5 b7 h5 g5 h3 g6 f3 g7 h4 Qb3 c4 Rh2 f2 Qd1 c3+ Kd3 a4 Be2 f1B Qd2 a3 Nf3 a2 Qh6+ Nf6 g8R f4 Nbd2 c2 Ne5 Qc7 Ng6 Nc6 b8R Bg4 Rb4 Rd8 Kc3 Bg2 Ba6 Na7+ Kb3 Nb5 e5+ Kd7 d6 Ke6 d7 Kd5 e6 Nc3 Rb1 Bd6 Nc4 Ke4 Be3 c1B e7 Bd2 e8B Bh1 Rg7 Rf8 d5 Be1 Rg2 h2 Kc2 h3 Rd2 Qc5 Bd4 a1N+ Kc1 Bg2 Bf7 h1B Be6 h2 Rf7 Be7 d6 Nc2 Rh7 Ne3 Rh8 Ned1 Kc2 B2h3 Rc1 B1g2 Ra1 h1B Ra5 Rc8 d8Q Bf1 d7 Bd6 Qe7 Rcd8 Qeh7 Qc7 Rd5 B3g2 Na3 Bc4 Nb5 Qc8 Nc7 Ba2 Ne8 Bf1 Rc5 Bb5 Rf5 Qc4 Rd5 Bh5 Bh3 Ng4 Rd3 Nh2 Rd2 Ra8 d8Q Bg4 Qdg5 Ra7 Bb7 Ra3 Ba6 Bc6 Rf5 Rb3 Rf7 Ba4 Rd7 Bh4 Qgh5 Bd8 Q6g5 Ba5 Q7h6 Be2 Qg1 Bg4 Q5g5 Nf2 Qc1 Nfd1 Qb1 Nd5+ Bc3 Qd4 Rb5 Qb4 Bd4 Rd3+ Kc1 N5c3 Rbb7 Bb5 Kc2 Qc4 Rb8 Bc6 Rb4 Ba4+
1B1Qb1bk/r1N1RR2/1Nr2K2/q1Nb4/1pb5/1PRQ3N/BQ2n3/1n2b1rb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qd1 b4 Rh3 Qd7 Rh1 Qb5 axb5 Bf5 Nh3 Bg4 Ng1 Bc8 Kf2 c5 Kf3 f5 d4 Kf7 e4 Kg7 g4 a5 b6 h5 e5 h3 e6 h4 d6 h2 b3 a4 b7 a3 d5 c4 e7 a2 e8R c3 g5 h3 d7 c2 d8Q Nf6 g6 Bc5 d6 Ra7 d7 Bf2 Bg2 Rg8 Rf8 Kh8 Na3 Nd5 Bd2 c1R Rf7 Rc6 Nb5 Be1 Rc1 a1Q Nc7 Nc3 Re7 Nb1 Rc3 Qa3 Bc1 Qa5 Qd3 Raa6 Rf7 Ra7 Qf6+ Rg7 d8N Bd7 Nde6 Be8 Qfd8 Rg8 Nc5 Rg7 Ke2 f3+ Ke3 f4+ Ke4 f2 Kf5 f1B Be4 f3 Bf4 f2 Bd6 Bg2 Kf6 f1B Bf5 Bd5 Re7 Na6 b8N Be6 Nbd7 Nb8 Nb6 Bg8 Qe2 Be6 Qb2 Bfc4 Be5 Rg8 Qd3 Rg7 Nf3 Rg8 Rf1 h1B Ng1 h2 Nh3 Bhd5 Be4 h1B Bh2 Rd6 Rf5 Nc6 g7+ Kh7 Bg3 Nd4 Bh2 Rc6 Bd6 Ne2 Bh2 Rh8 g8Q+ Kh6 Be5 Rh7 Bh2 Rg7 Qf8 Kh7 Bf4 B8f7 Qd8 Be8 Qdc2 Bb5 Nca8 Kh8 Bb8 Bc8+ Ke5 Bbc4 Nc7 Bg8 Rff7 B8e6 Kf6 Na3 Qcd1 Rg5 Bb1 Rg1 Ba2 Nb1 Q1d3 Bed5+
1nBR2b1/n1bq2R1/1B2NrN1/1b1p1Nn1/2NR3n/3Qr2Q/n1P5/Bkn2K2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 Kf7 f4 Kf6 b4 h5 Qd2 Na6 b6 e5 b7 h3 b8R h4 b5 e4 b6 h2 b7 h3 Qe3 d3 Qe2 d2+ Kf2 d1N+ Ke1 e3 Nf3 Nc3 Ra4 Bd6 Nfd2 Rh6 Ba3 Ne7 Qf2 e2 Bb4 Nc6 Ba5 Bc7 Rg1 h1N Nb3 h2 Na3 Ng3 Bh3 h1B Qh2 Bd5 Bb6 Nge4 Nd4 d6 Rc4 Bd7 Rc8 Qe7 Rd8 Nab8 Rb4 a5 g5+ Kf7 f6 a4 f5 Ra5 Qe5 Na7 Qh2 Bb5 Bg4 Be6 Qh3 d5 Rg3 Nd2 Kf2 e1N Rc4 Ndf3 Kf1 Nh4 Rg2 Qe8 g6+ Kf8 f7 Ke7 f8N Kf6 g7 Ke5 g8N Nef3 Ne7 Bg8 f6 Ke4 Be6 Ke3 Rg7 Kd2 Nef5 Kc1 Bc8 Rg6 Nde6 Qd7 Nh6 Kb2 f7 Ka1 Ng4 Ng5 Ne3 Bc6 Rf4 Bb5+ Nac4 a3 Rg4 Rh6 Rd4 Ka2 Ng6 Ka1 f8Q a2 Qa3 Kb1 Ne5 a1N Nf5 Rf6 Ng6 Na2 Qae3 Ra3 Qe4 Re3 Qd3 Na6 b8B Bh2 Rf4 Nb3 Be5 Nb8 Ba1 Nbc1 Rd4 Bc7
N6Q/1KN1R1R1/B2n1kP1/2bb1Brr/1B1q1nR1/2pn4/Qn3N2/rnn3N1 w - - 0 1 illegal: No possible last move
nQ2n1N1/5RQK/1r3p2/1N1b1knB/3B1nqb/3r3R/1n2RQPn/4B1bQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 b4 h5 d4 a5 d6 f3 d5 h3 e3 a4 b6 c4 b5 h4 d7 h2 d6 c3 b7 c2 b6 f2 Nh3 a3 Kf4 a2 e4 Ra3 Nc3 Rh6 Ng5 h3 Nb5 Rd3 Be3 c1N Be2 f1N Bh5 Na6 b8B Be7 b7 Nc7 Nh7+ Ke6 e5 Ne2+ Kg4 Nf6+ Kg5 Nfe8+ Nf6 Na8 Bd4 Nf4 Qf3 Qa5 d8Q Qa4 d7 Qd1 Rc1 a1B Qc7 Qe2 d8Q Bb2 Bc5 Bd4 Qf2 Bd7 Bba7 Bc6 b8Q Bd5 Bb4 Bdc5 Rc3 Bd4 Rg1 h1N Bb6 Be3 Bd4 Nh2 Rf1 Ng3 Rb3 Qd1 Be1 Qf3 Qc1 Qe2 Qdc7 Ne4+ Kh4 Ng5 Ng8 Kf5 e6 Bd8 e7 Rb6 Qa1 Ng4 Qcb7 h2 Ra3 h1N Q7a7 Nd6 e8R Nh2 Qe7 Qd1 Qf8 Qe2 Qg7 Qf3 Re4 Ne8 Rc3 Bc1 Re2 Be3 Qg3 Bg1 Qf2 Ng3 Qb1 N3e4 Qc1 N4d6 Rb3 Qe4 Rc3 Rd2 Rh3 Nc4 Qc2 Nh7+ Ne7+ Ke6 Qf8 Nd3+ Qff4 Nc5 Qd1 Nd3 Bg3 Bf2 Qg7 Ncb2 Qe1 Be3 Rf3 Bf2 Qh1 Bg1 Be1 Rd1 Bg6 Rd2 Kh5 Rd1 Ng8 Bh4 Kh6 Ng5 Bh5 f6 Rfe3 Rd2 Qg3 Kf5 Qf2+ Qf3 Re7 Nf4 Rb7 Qg4 Rf7 Ne4 Kh7 Rd1 Nc7 Rd3 Nb5 Ng5+
3RR1n1/r4nB1/1KRrPNrn/Rq2pkn1/4Nn2/8/Q1bb1n2/Q2N1BQ1 w - - 0 1 illegal: No proof kernel
8/b1K3Rn/2p1b1b1/2r1b1kn/1Bq1bb1R/r3N2R/NQ1P1n1Q/N2Q1B1R w - - 0 1 illegal: No possible last move, all moves rejected
6Nk/R2BPQ2/1B1p1KRr/Rb3r2/1rQ1r2Q/N1Nn2n1/1n1r4/Q1b2r1q w - - 0 1 illegal: No possible last move, all moves rejected
K2nb1BN/Pn4R1/qQ1B4/rn1bpr2/k2bn3/1R2n1RN/nR3Q2/3Q2B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 b5 g4 h5 a4 h3 d4 h2 d6 Kc6 d7 c4 d5+ Kc5 g5 h4 g6 h3 g7 c3 a5 b3 f6 Kb4 a6 b2 f7 c2 f5 Qa5 d8R Bb7 f6 Rh5 Ra2 Rf5 Be3 c1N Nc3 b1N Rb2+ Nb3 Nce2 Ka4 Rd7 b4 Nf4 Nc6 d6 Na3 Ng6 Nb5 Kd5 Nh6 g8R Ng4 Nh8 Bh6 Bf2 Be3 f8B Bd4 f7 Ra7 Bc4 Ne3+ Ke6 Qb6 Rg3 Nd8+ Ke7 Bg2 Rc7 Qc6 d7 Bd5 Ke8 Qb6 Bd6 Qa5 f8Q Ra8 Qd2 Nc5 Qd1+ b3 Ra7 Bc6 Bg8 Bd5 Rc7 Ncb7 Rc3 Bf7+ Ke7 Be8 a7 Qa6 Qf6 Rc8 Qh4 Rc5 Rd3 Ne6 d8Q Rd5 Qb6 Ned8 Ne2 Rc5 Rhg1 h1N Nf4 h2 Nh3 Rd5 Rg7 Ng3 Rg2 h1B Bg1 Ne4 Qf2 Rc5 R2g3 Bg2 Rc2 b2 Rb3 b1N Rcb2 Bh5 Kd7 N1c3 Qc6 Na2 Kc8 Be8 Kb8 Nec3 Qb6 Bd5 Ka8 Ne4 Bf8 Nbc3 Be7 Ra5 Bd6 Nb5
NBbQ1rbk/PR1bp3/n1BQ2b1/R7/6Kn/qb2r1b1/2R4B/1QBN2n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kg7 g4 h5 a4 b5 d4 c5 g5 c4 g6 h3 d6 h4 a5 c3 a6 h2 a7 h3 d7 c2 d5 b3 d6 b2 Nd2 b1B f6+ Kh6 g7 Kh7 f7 b4 Ne2 b3 Bg2 b2 Nc4 Ba6 Nc3 Qb6 d8B Qe3+ Kg4 Bc8+ d7 Ba2 f4 b1B f5 Bb3 f6 Na6 Ra5 Qd3 Rf1 h1B Nb6 h2 Bc6 Bhd5 Rf2 h1B Bc7 Qe3 Bb8 Nh6+ Kh5 Nf5 d8Q Rg8 Qd6 Nh4 Rd2 Rh8 g8R Bh6 f8Q Bf4 f7 Bg3 Qfd8 Bde6 f8B Bed7 Rg4 Bhd5 Bh6 Bg8 Bf4 Qc5+ Rg5 Qa3 Rgb5 Kg7+ Kg5 Rh6 Rf2 Re6 Kg4 Kh8 Q1d3 Re5+ Qf5 Re4 Nd1 Re3 Re2 Be1 Bh2 Bg3 Bd2 c1N Rb4 Nd3 Bc1 Ne1 Rc2 Nef3 Nc4 Ng1 Rb7 B1a2 Nb6 Bf7 Rc7 Bg6 Rb7 Re6 Qb5 Bd5 Qb1 Bb3 Bc7 Rb8 Na8 Re3+ Rf5 Bde6 Qe8 Bcd7 Qc8 Bde8 Qcd7 Rc8 Bb8 Rd8 Q7c7 Bc8 Qb6 Bed7 Qbc7 Rf8 Qd8 Re6 Ra5 Re3+
NB4B1/1b2Rn2/3Nbk2/R2B3r/4qnQ1/P1Rp2b1/brR2Qn1/1n2QKn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 c4 Kf7 f4 e5 h4 d5 c5 g5 f6 b5 c6 g4 c7 d3 f5 b3 h6 g3 h7 b4 h5 b2 h6 b3 Nh3 d4 Nd2 b1N Nf2 g2 Rh2 g1N Bg2 e4 Kf1 e3 Bd5+ Be6 c8B b2 Qg4 Ba3 Nc4 d2 Ne4 d1B Ned6+ Kf8 f7 Ke7 f8R d3 Re8+ Kf6 Re7 Ra5 Rc2 Na6 Nb6 Bf3 Na8 Nb4 Ba6 Qc8 Bac4 Qe8 Bd2 Ra6 Be1 Rb6 Bg3 Nc3 Rac1 b1B Bf4 Bb2 a3 Ba2 Bb3 Nb1 Rc3 Nc6 R1c2 Nd4 Bg3 Nde2 Bh2 Nf4 Bg3 Ke5 f6 Be4 f7 Kf6 Bbc4 Bc1 Bh2 Rb2 f8Q+ Ke5 Bg3 Bd2 Bh2 Be1 Qf7 Bg3 Qf8 Nfe2 Qf2 Nf4 Qe1 Nf6 Bb3 Nd7 Bbc4 Kf6 Qf2 Rf8 h8R Ne5 h7 Nf7 Rg8 Qa4 Rg5 Rh8 Bb3 Bh1 Re5 Qe4 Bbc4 Rg8 h8Q+ Rg7 Qe8 Rh7 Bc6 Rh5 Ra5 Qd4 Be4 Bf3 Bh7 Bb7 Bg8 Qe4 Bd5 e2+ Ke1 Qc4 Qa4 Qe4 Qb4 Bh4 Nf5 Nfh3 Rc4 Qg2 Bb8 Bg3 Qd2 Qe4 R4c3 Nf4 Qe3 Ng6 Nd6+ Bf4 Qh2 Be5 Kf2 e1N Kf1 Bg3 Qhf2+ Nf4 Qed2 Ng2 Qc1 Nd8 Qce1 Nf7
6RK/B2r2R1/1r2BQB1/r2P1r1Q/1qqnbN1n/p3r3/4R3/BQbN1kr1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 c5 g4 a5 b6 h5 b5 a4 g5 h3 g6 h2 g7 a3 b7 h4 d6 h3 b6 f3 d7 f4 d5 f2 Nc3 f3 Bf4 Ne7 Kf6 Ra5 g8Q Rh6+ Kf7 Nf5 Ra2 Qh4 d8Q Nc6 b8B Ncd4 b7 Rb6 Qg4 Bh6 Bg2 f1Q Kg8 f2 Bfe5 Bc1 e4 Qe1 Rc2 f1R Nge2 Rf3 Qgg5 Re3 Rg1 h1R Qh5 h2 Qf6 Qf1 Qe1 Kd3 Kh8 c4 Nd1 c3 Bh3 Qhf4 Ba7 Nh4 b8R Bf5 Ra2 c2 Rg7 Rg1 Rbg8 h1R Rb2 Bg6 Be6 Rhh3 Qb4 Rhf3 Ra2 Qe1 Qb1 Qb4 Rb2 Qg4 Nf4+ Kd2 Ra2 Ke1 Rb2 Kf1 Ra2 Nb5 Ba1 Nd4 e5 Be4 Rb2 Bd2 Ra2 c1R Rb2 Rc4 Rc2 Bc1 Re2 Bd3 Bd7 Rc7 e6 Rf2 e7 Be4 Be6 Rd7 e8B Rff3 Bg6 Qc4 Ng2 Rf5 Nf4 Qb4 Rb2 Qe2 Rd2 Qd3 Re2 Qdc4
3Qn3/2Bb1Q1R/1b5K/1NP1r1r1/kp1n3N/N2Q4/nnq3nb/1BRB1b1N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 b3 h4 g5 f4 d5 a4 Kd7 c4 Kc6 f6 b5 f5 e5 c5 e4 f7 g4 f6 b2 h6 g3 a5 g2 a6 d3 Ke3 b4 Kf4 Kb5 Kg5 d4 h5 e3 a7 e2 h7 e1N h6 Be7 f8N Nc6 Nh3 g1B Bf4 Ng2 Nf2 Qe8 Rh4 Bd8 Be2 Bb6 f7 Nf6 Nh1 Qe4 Bc7 Bh2 Ng6 Re8 h8Q Bd7 f8Q Re7 Bf3 d2 h7 d3 Qf7 Rg8 a8B Ree8 Qe2 d1N Na3+ Ka4 Rc1 b1N Qf1 d2 Bb7 Nb2 Bd1+ Qc2 Ba6 Rg7 Bd3 Qb3 Bf5 Re6 Qd8 Nc3 Bb1 Na2 Qd3 Qc2 Rh6 Ne8 Kh5 Re1 Nh4 Nb8 h8N Rg3 Qf4 Nc6 Nf7 Nd4 Rh7 Re5+ Kh6 Rg4 Nd6 Rgg5 Bf3 d1B Ndb5 Be2 Qf7 Bf1 Be2 Rg8 Bd1 Rgg5
4b3/2bBkb2/3r1n1K/PRB3Qp/1Nn5/1bnR1bBQ/1B3R1N/n2q2Nr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Kf3 c5 Kg4 b5 Kh5 c4 f4 h6 d4 h3 a4 b3 g4 h2 a5 b2 g5 e4 d6 b4 f6 b3 d5 c3 d7+ Kf7 f5 e3 d6 e2 Bh3 e1N Ra2 c2 Qg4 Be7 Nd2 b1B Ndf3 Nc6 Bb2 c1N g6+ Kf8 f7 Bc2 Qh4 Ne5 Bg4 Ba6 Qh3 Bb5 Ra3 Nc4 Ra2 Qc7 d8N Ra6 d7 Rd6 Nc6 Qd8 Nb4 Ne2 Ra3 Bg5 g7+ Ke7 f8R Nf6+ Kg6 Be3 g8Q Nc3 Qd5 Bf2 Qd2 Bb6 Qg5 Bc7 Kg7 h5 Kg6 Rg8+ Kh6 Qa8 Rb8 Qd5 Ra2 Qd1 d8B+ Kf7 Be7 Be8 Rb5 Rg7 Bf8 Rg8 Bg7 Ke7 Bh8 Ne2 Be5 b2 Bg3 b1B Ra3 Ba2 Rd3 Bcb3 Bg7 Nc2 Bh8 Kd7 Bg7 Ne4+ f6+ Kd8 Bd7 N2c3 Bh8 Na1 Bg7 Rd5 f7+ Nf6 f8B Rd6 Bh8 Rg7 Nd5 Re7 Nb4 Re1 Bhg7 Rd5 Bc5 Rd6 Ne2 Ke7 Rf1 h1B Rf2 Bg2 Nh2 Rh1 Ng1 Bf3 Qg6 Nh7 B7e5 Nf6 Qg5 Nd2 Bed4 Bbf7 Bde5 Bab3 Bed4 Nc4 Bde5 Ne4 Bb2 Nc3
1n1bk3/2Qb2Q1/2Bq2RP/BQ1n2r1/rnnK1Npn/6q1/B2N1NR1/1nB5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 g5 d4 c4 e5 a4 d6 c3 h5 f3 Ke3 g3 e6 f2 d5 g4 d7+ Ke7 b6 f4+ Kd4 c2 h6 f3 b5 a3 b7 a2 b6 g2 Nd2 Nf6 Bc4 f1N Rh2 f2 Nh3 g1N Rg2 Ra4 Qe2 Qc7 d8B+ Ke8 d6 Bd7 e7 Rg8 Qe5 Nd5 Qg7 Nfe3 Rb1 f1N Nf2 a1N Rb2 Ra6 Ba2 Nc4 Rb5 Ra4 Rb4 Na6 b8Q Qc6 Qc7 Nb8 b7 Nf3+ Ke4 Qa6 Rb6 Nh4 Rc6 Qb6 Kd3 Qb3+ Kd4 Qg3 Rb6 Nc3 Ra6 Nfe3 Rb6 Nb1 Rc6 Na6 b8Q Nd5 Qb5 Nb8 Rc5 Nb4 Rg5 Nd5 Rg6 Nb3+ Ke4 Nc5+ Kd4 Nd3 Qcc5 N5b4 Ba5 Nf4 Qcb6 Nfd5 Qc7 Bc6 Qf6 Bg7 Qe5 Bf6 d7+ Kf7 d8N+ Ke8 Ne6 Bd7 Nf4 Bg5 Ba3 c1Q Qg7 Qe1 Bb2 Qe6 Bc1 Qd6 Qh8 Kf7 e8B+ Kf8 Qh7 Bd8 Qh8 Bc8 Bc6 Bd7 Qg7+ Ke8 Nf3 Rf8 Nd2 Rf5 Qc8 Re5 Qc7 Rg5
r2RQQN1/3nb1b1/3n3P/bb1NQr2/k1qp4/1b3B1r/1B3KRQ/r4B1N w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 c4 a5 f4 g5 b4 d5 b6 Kd7 f6 Kc6 f5 d3 f7 d2+ Kf2 a4 c5 a3 h5 e4 h6 a2 f6 Ne7 b7 Bd7 Rh2 Qc8 Nh3 Nf5 Qe2 d1B Bb2 Bb3 Nc3 Nd6 Rd1 a1B Rg2 Be7 f8Q Ra3 f7 g3+ Ke1 e3 Qe8 g4 f8Q Ra5 Nf2 Rb5 Qd2 e2 Nh1 Ra5 Qe3 Rg8 Rd3 Ra8 Qef4 Rg5 Qe5 Rf5 b5+ Kc7 b6+ Kc6 Nd1 Kb5 c6 Ka4 c7 Bb5 Ne3 Nd7 b8N Qa6 b7 Qc6 c8B Qc4 Rh2 g2 Nc6 g1R b8Q Rg3 Rg2 Rh3 Bb7 g3 Rd4 Bf6 Ne7 Bg7 Rf2 g2 Ng8 g1R Rg2 Bf6 Qc7 Be7 Rd3 Rg5 Kf2 e1B+ Ke2 Ba5 Qh2 Nc8 Qce5 Nd6 Kf2 Bf6 Rd4 Rf5+ Rf4 Bg7 Bc6 d4 Bf3 Bd8 Nd5 Be7 Ba3 Bc3 Bb2 Bd2 Rfg4 Ba5 Rg6 Nb7 Rb6 Nd6 Rb8 Ba2 Rd8 Bb3 Be2 Rb1 Bf1 Ra1
N2r1b1b/2q2B2/bP6/b2bR1rN/NRQ2K1R/B2b1n1q/p5QQ/k5Nn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 f4+ Kd2 c3+ Kd3 a3 b6 g4 h7 f2 Qd2 a2 Nf3 g2 Qc2 g1B Rh5 g3 Re5 Nd7 b8Q+ Qc7 Qd2 c2 Nc3 g2 Na4 Ra6 Rb1 Nh6 Rb4 Ng4 Ba3 c1B Qc3 Bd2 Qc4 Bh2 Ng1 f3 Qb7 Rg8 h8R Rg5 Rh4 Ra8 Be2 Bg3 Bd1 Bc3 Bb3 Be1 Qb8 Ba6 Qb7 Rd8 Qb8 Ngf6 Ke3 f1B Qa8 Bgf2+ Kf4 Bd3 Qb8 Ng4 Qb7 Nb8 Qa8 Nc6 Qb8 Kd7 d6 Bb7 d5 Bd4 Qa8 f2 Qb8 f1B Qa8 Ne7 Qb8 Nh2 Qa8 Ke8 d7+ Kf7 d6+ Kf6 Qb8 Bd5 Qa8 Re8 d8N Nf3 d7 Nf5 Ne6 Ng3 Ng7 Nh1 d8N Bdc3 Nde6 Rd8 Qb8 Qc8 Nc7 Qh3 Na8 Ba1 Ne2 g1Q Qbc7 Qc5 Ng1 Bd4 Qb7 Qc7 Nh5+ Kf7 Qc2 Ba6 Qh2 Bfd3 Qc8 Bec3 Qg4 Be1 Qgg2 Ba1 Rd4 Ba5 Rb4 Be6 Bc4 Ke7 Bb3 Kd6 Bc4 Bd5 Bb3 Bc6 Bf7 Bd5 Re8 Bh8 e5+ Kc6 Re7 Bf5 Re8 Bdc4 Re6+ Kd5 Re8+ Kd4 Re7 Rd6 e6 Be4 Re8 Beb7 e7 Bd5 Rb8 Kd3 e8Q Bcb5 Qc6 Bbc4 Re8 Rd8+ Re5 Kd4 Nc5 Kc3 Qb5 Be2 Na4+ Kc2 Bb2 Kb1 Ba3+ Ka1 Qc4 Bd3
N3R1RB/2rqnB1N/P1Nb1r2/2bn1p1K/1n5n/4R1bk/4N3/Bb1QQb2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Kg4 g5 a4 c5 d4 c4 e4 c3 h4 f3 e5 c2 d6 Ke6 h6 f5+ Kh5 b3 h7 g4 d7 f2 a5 b2 Nd2 b1B Ndf3 b4 Qe1 b3 Rh3 g3 Bb2 c1B Ne2 g2 d5+ Kf7 d6 g1B Rg3 Na6 Ra3 Nb4 Ba1 b2 e6+ Kf6 e7 Ba6 Ng5 Ra7 Rae3 Rc7 e8R Bad3 a6 Ne7 Qd1 Qc8 d8N Qd7 Nde6 Bh2 Bg2 f1N Bd5 Nd2 Rg1 Rg8 h8Q+ Rg7 Rg4 Nf3 Ba2 Rc6 Nc7 Bg3 Na8 Rc7 Qg8 Rg6 Bf7 Bd2 Qe1 Bc3 Qd1 Bd4 Qh7 Bc5 Qh6 Qa4 d7 Bcd6 d8N Qd7 Nc6 Bc5 Nc1 Bf1 Qe1 Nc8 Ne2 Bfd6 Rg8 Ne7 Rge4 Bd3 Re5 b1N Qf8 Nc3 Qd8 Bb1 R5e4 Qc8 Qd7 Bdf4 Qdd1 Bfd6 Rh8 Qd7 Nh7+ Kg7 Rb8 Rf6 Re8 Ncd5 Rf4 Ne5 Rg4+ N5g6 Kg5 Ng8 h5 Nh4 h6+ Kh8 Nf8 Nge7 h7 Kg7 Ncd4 Re6 Kh5+ Kf6 Rg5 Bh2 Rg8 Bhg3 Rf3 Ke5 h8B+ Rf6 Nh7 Ke4 Rb3 Ke5 Nc6+ Ke4 Rb2 Kf3 Rb3+ Kg2 Re3 Kh3
1RNN4/qQ1R1Qn1/p2QQ1nN/4b1B1/P3r2r/nn2b1b1/2K2b1b/k2B2B1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 c4 Kf7 a4 Ke6 f4 b5 d4 h5 Kd2 a6 g5 b4 c6 e3+ Kd3 e2 g6 e1B g7 h4 c7 b3 c8N h3 c5 Kd5 f5 e5 f6 h2 c6 b2 f7 e4+ Kc2 e3 c7 e2 Ra2 Kc4 d5 Nc6 d6 Qe7 d7 Bf2 d8B Na5 Nc3 b1N Nd5 Rh4 Nf6 Nb3 Nf3 g1B Nd4 g2 Be3 Qc5 Rb2 Qa7 Qd2 Ne7 g8Q Bg7 Ng4 Be5 Ne6 Ng6 f8Q Bfg3 Bc5 Be3 Nh6 g1B Qdd6 Bg3f2 Bg2 e1B Qff7 Bfg3 Qge8 Be1f2 Bg5 Re4 Bf3 Na3+ Kd1 Kc3 Nd8 Rb8 Qee6 Rbb4 Be2 Rh4 Rb1 Rbe4 Bg4 Nd4 Rb8 Nb3 Bf3 Kb2 Bh5 Ka1 Bf3 Nb5 Kc2 Be1 Bd1 Na3+ Kd3 Bg1f2 Rg1 h1N Bb6 Nc4 Kc2 Bh2 Rg2 Bfg3 Rd2 Bgf2 Bc5 Ng3 Rd5 Nf5 Bb6 B3f4 Rd2 Bf2g3 Bg1 Ng7 Qdd5 Ka2 Ne7 Re2 c8Q Re4 Qcb7 Bef2 Nc8 B4e3 Qc5 Ka1 Rd7 Nf4 Qce7 Ng6 Q7d6 Na3+
qR2b1nN/2b1nK1P/1N1b1Q2/1N2Q3/1n1BN3/2Bk1BrQ/1rR1bn1p/3n4 w - - 0 1 illegal: No proof kernel
2n2k2/1K2Npr1/R2n1B2/2Pbr1rB/3Rrb1R/N1Rq1QN1/B1n1Q2n/r7 w - - 0 1 illegal: No possible last move
BR1Q4/3rPNb1/Q1Nr1n1N/1BBb4/1b2BpR1/2qQ4/qk1b4/1b1Kn2b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 h4 Ke7 e4 Ke6 c4 g5 b4 d5 c5 f5 c6 a5 b6 d3 b7 d4 c7 g3 h5 a4 b5 f4 h6 a3 h7 d2+ Ke2 g4 b6 g2 Qc2 a2 Nc3 g3 Nd5 Nd7 b8N Ra7 b7 Qf6 Nc6 Nc5 b8Q Bg7 Ba3 Bb7 Nf3 g1B Bg2 Be3 Qa8 Nd3 Rh4 Ne1 Rb1 a1Q Qd3 Qa2 Rg4 Ra6 Bh1 g2 Kd1 g1B Nde7 Bgf2 Bc5 Rb6 Nb4 Bd5 Nf5 Rd6 c8B+ Rd7 Nh6 Bg1 Bb7 Rd6 Ke2 d1B+ Kf1 Rd7 Nc6 Bd2 Qaa6 Bc2 Ke2 Bge3 Rb4 Bb1 Kd1 Bc3 Rb3 Bed2 Ba8 Ba5 Rb8 Bab4 Qdc4 d3 Qc3 Rd6 Ng5+ Kd7 e6+ Kc7 Qa1 Qc3 e5 Nf6 e7 Rhd8 h8Q Kd7 Ngf7 Ke6 Be4 R8d7 Bh7 Bh1 e8B Kd5 Qa3 Kc4 e6 Bd5 e7 Bh1 Qa6+ Kb3 Bg6 Qa5 Qa4+ Kb2 Q4b5 Qa2 Bh7 Bc1 Qc4 d2 Qd3 Bd5 Ke2 Bh1 Be4 d1B+ Kf1 Ba4 Ke2 Bb5 Kd1 Bc4 Qg8 Ra7 Bd7 Bd5 Qd8 Rc7 Na7 Bd2 Bb5 Rb7 Nc6 Rbd7
N3Brrb/1RBNp1bR/brk5/Rn1r4/q3n2Q/1N4bN/1Q3PQ1/2b3K1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 h5 b4 c5 b6 a5 d6 h3 g5 c4 g6 h4 b7 a4 g7 e3 b5 e2 b6 a3 d5 c3 Qd2 h2 Nh3 a2 Qb2 c2 Bf4 c1B Nd2 Nf6 g8Q Qe8 Nb3 Nc6 b8R Ne4 b7 Nd4 Qg2 Rg8 Be5 Bg7 Bg3 Kd8 d7 Nb5 Bf4 Be5 Bg3 Kc7 d8N Kd7 d6 Rf8 Ne6 Kc6 d7 Bg7 Nhg5 h3 d8Q Ra6 Be5 Rb6 Qdd4 Bf4 Qb4 Bg3 Nc7 Rg8 Na8 Qd7 Rg1 h1R Bc7 h2 Nh3 Qg4 Q4d2 Qd7 Qf4 Qd4 Qh4 Qa4 Rd1 a1B Rd5 Nbd6 Ra5 Nb5 Qf3 Bh8 Rg2 Rg1 Qfg4 h1R Rh2 Rd8 Qf3 Rf8 Qg2 Bf5 Re8 Bc8 b8N+ Kb7 Nd7 Kc6 Rd8 Ba6 Rb8 Bg7 Rb7 Bh8 Qa3 Bag7 Qb2 B3e5 Qf3 Rg6 Qg2 Bg3 Qa3 Rd6 Qb2 Rg1 Qg4 Nc3 Nf6 Bh4 Q2g3 Rd5 Nf4 Bh6 Q3f3 Rg3 Qg2 B6g5 Qh5 Rg4 Rh3 Bg3 Rh4 Bh6 Nh3 Rgg8 Qg4 B6g7 Rh7 Nb5 Qg5 Nd4 Qh4 Nd6 Kd2 e1B+ Ke3 Bb4 Bc4 N4b5 Nd7 Be1 Ke2 Bd2 Kf1 Bc1 Kg1 Ne4 Bd3 Nec3 Bg6 Ne4 Bf7 Ned6 Be8 Ne4
2Bkr2Q/1q1PN1KN/1n1n1pr1/3N2n1/brr2nQ1/bR2n1B1/1R6/Q3R2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 Ke5 a4 b4 h3 e4 f3 g4 f2 d4 c4 b6 h2 b5 h4 d6 h3 d5 a3 b7 a2 d7+ Ke7 g5 c3 g6 c2 g7 Qa5 d8N Qa7 b6 Bd7 Bf4 c1R Ba6 f1N Nf3 Nh6 g8Q Nf5 Nc3 N1e3 Qg4 Nd6 Ng5 Rh6 Bg3 Ba4 Nc6+ Ke8 Rb1 a1R Rb2 Rab1 Ne7 Kd8 Nh7 f6+ Ke6 Rc2 e5 Nd7 Qdd4 Rc8 b8Q Re2 b7 Nb6 Qa8 Ree1 b8R Qb7 Qdd1 Re2 Rb3 Rbb2 Qa1 Rec2 Rf1 h1N Rb1 Nf2 Rh1 Rb1 Rb2 h2 Rb3 Ne8 Kf7 Nh3 d6 Nf4 Nd5 Rc4 d7 Nd6+ Kg8 Rb2 e6 Rb1 Rg1 h1N Re1 Nf2 Rh1 Qc6 Kh8 N2h3 Rb7 Rb8 Rb2 Nbc8 R7b3 Nb6 Bc8 Re1 Ng8 Be7 Kg7 Rb7 Qb8 Ng5 Qa8 Nb5 Qb8 Ba3 Nge7 Nd6 Qh5 Nf1 Ng6 Na8 Qg4 Rbb4 Bb7+ Qc8 Nc3 Nb6 Qa8 Nge4 e7+ Kc7 e8R Ng5 Re4 Qb8 Re5 Qa7 Qh8 Re3 Bc8 Qb7 Ngf8 Kd8 Nd5 Rf3 Re1 Re3 Ng6+ Re8 Nge7 Ne3 Rc2 Rc6 Rd2 Rcc4 Rdb2 Rg6+
1r1B4/1rpQK3/1r1Q4/RPb5/rq3Q2/BbN3r1/NRn1B2N/b3knbQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 h4 Ke5 d4+ Ke4 b6 a5 h5 f5 e3 g5 h6 a4 b7 a3 d6 g3+ Kg2 f3+ Kh3 f4+ d7 a2 Kg4 f2 h7 g2 d5 f3 d6 Nc6 b8Q Ra4 Ba3 Qe7 Be2 f1R Rh2 f2 Nf3 g1B b5 Nh6+ Kh5 g4 Kg6 g3 d8N g2 d7 Qb4 Kf6 Nf5 Qd6 Ncd4 Nc6 Ng3 d8B Be6 Qb7 Rg8 h8Q Nc2 Qh6 Bb3 Qg5 Rc1 Qh6 f1R Qdf4+ Kd5 e4+ Kc5 e5 Kd5 e6 Bfc5 Qd6+ Ke4 Qh4+ Ke3 e7 Kf2 e8Q Rfd1 Qh6 Nf1 Qed7 Rd3 Qdf4 Rd6+ Ke7 Ra7 Qa6 Rb7 Nc3 Rcd1 Qa8 Rdg6+ Qfd6 Rd4 Qf4 Rc4 Rb1 a1B Rb2 Rh8 Rh6 Rg3 Nh2+ Ke1 Rf6 Qa5 Re6 Ra4 Nb4 Rhg8 Nba2 Qb4 Rf6 R3g6 Rf8 Ba7 Qc5 Be3 Rf6 g1R Rb6 R1g3 Ra6 Bg1 Ra5 Rd6 Qcc6 Bac5 Qb6 Ra7 Qh1 Bcf2 Qc5 Rb6 Qcd6 Rab7 Kf6 Nd2 Be7 Rgb8 Bd8 Nf1 Ke7 Bc5
Kb4N1/rPr1R3/r2b1qB1/1bNQ1b1R/5Rb1/k2r1N1B/1nRB2np/3Q4 w - - 0 1 illegal: No possible last move
3N3n/P2rbR2/br1r1Rr1/4Qn1K/1k2nR2/qp2Q1N1/2R1B1n1/BNB3r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 a4 e5 f4 h5+ Kf3 b5 g4 b3 d4+ Kb4 a5 c5 g5 b2 f6 c4 f5 c3 f7 h3 a6 e4+ Kg3 c2 Kh4 e3 a7 e2 d6 e1N f6 h2 g6 Rh7 g7 Nc6 d7 Nh6 g8Q Ne5 d5 Ba6 d6 Be7 f8B Nf5+ Kg5 h4 Be2 h3 Qh8 Ng6 Ra2 Qa5 d8R Ng2 d7 Qa3 Qd3 Rb8 Re8 Rb6 d8N Rd6 Qe3 Rf7 Qh5 Nh8 Kg4 Rh7 f7 Rhh6 Qhg5 Rhg6 Bg7 Rd7 f8R Rgd6 Nc3 b1R Rf7 Rb2 Nb1 Rb3 Bcb2 c1R Ref8 Rcc6 Bc1 Rb6 Qe5 Rg3+ Kh5 Rg4 Qge3 Rg3 Nf3 Rgg6 Rf1 h1N Nh4 h2 Rc2 Nf2 Rf6 h1R R8f7 Ne4 Rf2 Nh6 R2f4 Rhd1 Nf5 Rg1 Ng3 Nf5 Q3c3+ Ka4 Qd3 b4 Qe3 b3 Re6 Bf8 Qd5 Nfh4 Ba1 Kb4 Ref6 Nf5 Qe5 Be7
q2B4/PRBr3b/r3rNb1/4n1N1/1Qp1K1r1/2b1nRb1/2Bk1b2/QQN3N1 w - - 0 1 illegal: No possible last move
N1rn4/N1rB3b/2N2BRR/n5qK/2R3rN/2Q1PQp1/Q1rnbbb1/5k2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 c5 h4 a5 h5 f5 h6 g5 b6 g3+ Kf3 g2 b7 a4 b5 g4+ Kf2 f3 Kg3 a3 h7 a2 b6 c4 Qd3 c3 Rh2 f2 Qf3 c2 Rh6+ Qf6 Bg5 c1R Kh4 f4 Na3 Rc7 Rc1 a1N Kh5 Nb3 Rc4 Nc6 b8N Nba5 b7 Bf5 Nd7 Nd8 Nb6 Rac8 b8R Be7 e3 Be4 Be2 f1B Bd1 Be2 Ba4 Bf5 Bd7 Bfd3 Nh3 g1R Na8 Rc1 Rb1 Rc2 Rg1 Bf5 Rg3 Bfd3 Ng1 Bf5 Qe4 f3 Rg2 f2 Nf3 f1B Nh4 Nac6 Qf3 Na5 Ng6 Qe5 Bf6 Qf4 Nh4 Be4 Rh2 Bg2 Rg6 Nh6 Rh1 Rg8 h8Q Nhf7 Be8 g3 Ra4 R7c6 Rg7 Bc4 Qh7 Nab7 Ng6 Ng5 Kh6 R6c7 Rh4 Rf8 Qg8 Nc6 Rh5 Ra2 Nh4 Nca5 Rb4 Rc5 Ba4 Rc2 Nb5+ Kd7 d6 Kc6 Qf7 Rg8 d7 Bd3 d8Q R5c4 d5+ Kc5 d6 Bh7 Nf5 Ne4+ Rgg5 R4c3 d7 Rg7 Qa2 Bf8 Rb3 Kc4 Na7 Bb4 Nh4 Bdf1 Rb2+ Kd3 Qc7 Rc6 d8N Be1 Rb4 Nd2 Qe5 Bf2 Rc4 R6c7 Bd7 Rg8 Ndc6 Nd8 Qfd5+ Ke2 Qf3+ Ke1 Qeb2 Be2 Qc3 Qf5 Rgg4 Kf1 Rg7 Qe4 Kg5 Qd4 Rh6 Qd6 Kh5 Qf4 Rf7 Rg6 Rg7 Rg4 Rgg6 Qg5+
5bQ1/1r1B1bBR/R1NnqQN1/8/1P2kN1r/1b1N1rp1/2B2nK1/r2nnR2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 c4 Kf6 f4 d5 Kf2 g5 b4 a5 b6 e5 h5 d3 c5 e4 h6 a4 h7 e3+ Kg2 g3 c6 g4 b7 e2 c7 d4 Rh2 a3 Nh3 a2 Na3 d2 Bb2 Qe7 Qb3 d1N Nc4 Qe6 Ne5 Ne7 Nd3 Na6 b8N Ra7 Nc6 Rb7 Qd5 Bd7 c8B Be8 Bd7 Bf7 Bc3 Nc8 Qf3 Rg8 h8N Nc5 Ng6 Nd6 Qd5 Rh8 Qb3 Kg7 f6+ Kh6 f5 Nce4 Rh1 Nef2 Nhf4+ Kg5 Rh2 Rh4 Qc4 Be8 f7 Kf6 Qb3 Kg5 f6 Kf5 Rh3 Ke4 Bb2 Be7 f8R Bf7 Ra8 Bf8 Rb1 a1R Ra6 Bg8 f7 Ra3 Nc1 d3 Bg7 d2 Ncd3 Ra1 Qb2 Ra3 Qf6 Rb3 Kg1 g2 Kh2 g1R Rba1 Be7 f8Q Bf7 Qg8 Bf8 Rb1 Rh1+ Kg2 g3 Rh2 Rg4 Rh7 Rgh4 Nd8 Rc3 Ba4 Rb3 Nc6 Ra3 Bc2 Ra1 Nh3 Rf4 Rc1 Rf3 Nhf4 Rh4 Kg1 Nc3 Bh3 d1B Rb1 Ra2 Kg2 Ra1 Bb3 Bc2 Rf1 Ncd1 Ba4 Bb3 Bg4 Bc4 Bc2 Bb3 Bh3 Qc4 Bc8 Qe6 Bd7 e1N+
2k1rQN1/B1nbB3/b1n1B3/RnN1b1p1/1Q1Bn3/1b1QP2K/r6R/2q3Rr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 a5 b4 f5 h4 g5 d4 c5 h5 c4 b6 a4 h6 a3 d6 c3 h7 g3 b5 a2 b7 c2 e3 f3+ Kh3 f2 b6 g2 d5 f4 Nc3 f3 Ne4 Ne7 Qd3 Nbc6 b8B Bg7 b7 Re8 h8R Be5 Ne2 g1R Bb2 c1N N2g3 Ne2 Ba7 Ned4 b8Q Nb5 Nh5 Qc7 Bbd4 Ba6 Bg2 f1B Rh7 Qc8 Nc5+ Kd8+ d7 f2 Rh2 Rh1 Nf6 Be2 Rf1 a1N Ng8 Bd1 Rg1 f1B Rf7 Ba4 Rf5 Bb3 Qb7 Be2 Bf3 Bed1 Bg4 Ba4 Qb8 Nb3 Qb6+ Qc7 Qa5 Nd2 Qb4 Bf4 Re5 Bdb3 Be6 Ne4 Rf5 Ng6 Re5 Nf8 Rf5 Qc8 Re5 Kc7 Rf5 Be5 d8B+ Kd6 Be7+ Kc7 Bb6+ Kb8 d6 Qc7 d7 Qc8 Bd5 Ne6 d8Q Nec7 Qd6 Qd7 Bf7 Kc8 Ba7 Qd8 Qh6 Qd5 Qf8 Qc4 Rf2 Qc1 Ra2 Bd1 Ra3 Bab3 Ra5 Bg4+ Kg2 Bd7 Be6 Qe1 Kh3 Qd1 Qf3 Qc1 Qf8 Bd6 Bb8 Bb7 Ra7 Be5 Ra2 Ra4 Ba7 Ra5 Rd2 Ra1 Ra2 Ba6 Ra5 Ra2
QB3r1k/3R4/K6b/2Rrp3/NQ4b1/1NbnrNnq/B1bnPr1Q/1B1B4 w - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 axb5 cxd4 g4 g5 fxg5 hxg4 Kd2 d5 Kd3 a5 b4 f5 c4 Kf7 h4 Kg7 h5 a4 c5 e6 b6 f4 b7 g3 b5 a3 g6 a2 h6+ Kf6 c6 g2 b6 f3 h7 Kg7 c7 f2 Qa4 Ba3 Bf4 Nd7 b8N Bc1 b7 Nh6 Nc3 Rf8 Rh5 Kh8 Nf3 g1N Nc6 Nf5 b8Q Ng3 Bg2 f1R Qab4 Ra3 Na5 Rf2 Qa8 Qh4 Nb3 Qh3 Na4 Bd2 Re1 a1B Rd1 Bac3 Bd6 Bh6 Rg5 Bb7 c8B Bc6 Bb8 Nc5+ Kc2 Bb7 Bd7 Bc8 Bh1 Bd2 Rf5 d3+ Kb2 d4 Be8 Nd7 Rc5 Ne5 Bc6 Be1 Be4 d2 Bb1 d3 Kc3 Nd7 Kc4 Ne5+ Kb5 Bd7+ Kb6 Bc8 Rdc1 d1B R1c2 Bd7 Ka6 Bc3 Rd2 Bc2 Rd1 d2 Bg2 Qh1 Bh3 Nd3 Bf5 e5 Be4 Kg7 Bc6 Bg4 Bb5 Kf6 g7 Qh3 g8B Kg7 h8Q+ Kg6 Rc1 d1R Rc7 Rd2 Rd7 Rd1 Nc5 Rd2 Bga2 Rd1 Nb3 Rd2 Ng5 Nf3 Bc4 Rd1 Bg8 Nd2 Nf3 Bg5 Qh4 Bh6 Bf7+ Kh7 Qh5 Qf1 Qh2 Kh8 Kb6 Nf4 Qh4 Bh7 Rc7 Nc4+ Ka6 Be1 Nbd4 Re3 Qh2 Qh3 Rd7 Rd2 Bfg6 Rdd3 Nb3 Rd5 Bgc2 Bg6 Qa3 Bb4 Bd1 Nd2 Rcc7 Bc3 Qb4 Bc2 Rc5 Nd3
r1B5/1b2R3/B3Q1P1/1R2q1b1/n2R1Qpr/NNr1nb2/1N3b1B/Kn1Bk2r w - - 0 1 illegal: No proof kernel
1n1R3B/2n3N1/1Q2npQ1/3b2B1/r1NKn1k1/2r2rb1/1b1BBQP1/1q2N1rR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kf6 b4 Kg5 d4 c5 e5 a5 e6 h5 d6 f6 d5 h3 b6 a4 b7 c4 e7 h2 e8N c3 b5 c2 d7 h4 d6 a3 b6 a2 Ba6 h3 Bb5 Ne7 Qe2 Nd5 Nd2 f3 Ng7 Nc7 Ke3 f2 Ngf3+ Kg4 Kd4 f1R Qf2 Ra4+ Nc4 Qe7 d8Q Be6 d7 Bd5 Bd2 c1B Rb1 a1N Ne1 Qb4 Qe8 Bd6 d8B Bg3 Be7 Ba3 Qf7 Rc8 Rd1 Qb1 Bf8 Bc1 Bg5 Rg1 Qg6 Nb3+ Kc3 Nc5 Kd4 Nbd7 b8B Bb2+ Ke3 Rf1 b7 N5e6 Ba7 Rg1 b8Q Rf1 Qb7 Nb8 Bb6 Rg1 Ba5 Rf1 Ba6 Rg1 Qb6 Rf1 Rg1 h1N Bd2 h2 Bb5 Bh4 Ba6 Ng3 Rh1 Ne4 Bc3 Bc6 Rd8 Bg3 Bd2 Bd5 Nh5 Nb5 Bg7 Nbc7 Bh8 Rg1 Ng7 Rf1 Rg1 h1R Bb5 Rh3 Rh1 Rg1 Na5 Ne8 Bd3 Rc3 Nc4 Nf4 Kd4 Nc7 Rf8 Bh4 Rd8 Rf3 Bf1 Bg3 Be2 Nfe6+
1n2r2r/kn5R/2BP2K1/N3bN2/4b1b1/1BrQq1Q1/Qn2p1QR/R1Brn3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kf4 c5 Kg5 Kc7 g4 Kb6 d4 h5 b4 e5+ Kg6 a4 f4 e3 f5 h3 d6 h2 d7 c4 d5 c3 g5 e4 f6 e2 f7 e1N Qc2 e3 Ne2 h4 Ng3 a3 Qg2 h3 Nd2 e2 Nf5 a2 Nb3 c2 Na5 Qc7 d8Q Bc5 f8Q Bd6 Qf7 Be5 Qdd7 Ka7 b6+ Ka6 b7 Qc3 b5+ Ka7 Qfe6 Qe3 Qd8 Nh6 b6+ Ka6 Qdd6 Nf7 Qa3 Nd6 Qd3+ Nc4 d6 Re8 Qg3 Bd7 Bg2 Rh8 Bc6 Re8 Rg1 h1R Rg2 h2 Qed5 Rg1 Qdf3 h1B Rh2 Rh8 Qff2 Be4 Qfg2 Nf3 Rh7 Rd1 Rh2 Bc8 Rh7 Ne1 Rh2 Nd7 b8R Re8 b7 Ka7 Rh7 Nb2 Rh2 Nc5 Rh7 Na6 Rh2 Be6 Rc8 Rh8 Rc7 Rae8 Rch7 Nb8 Kh5 Reg8 g6 Re8 g7 Bd7 g8B Bc8 Rb1 a1N Kg6 Nb3 Ra1 Nc5 Bb3 Nba4 Bb2 c1R Ba3 Rc3 Bc1 Be6 Qb1 Nbd7 Qa2 Nb2 b8Q+ Ka6 Re7 Nb7 Reh7 Kb6 Qc8 Nb8 Qd7 Ka6 Qf7 Bd7 Qd5 Ka7 Qd3 Bf3 Ng7 Bdg4 Nf5 Be4
4rb2/1b3qBN/rn1p1r2/2Q1QB2/rB5N/R1b1R1nn/2QP1b1N/Q3K1k1 w - - 0 1 illegal: No possible last move
nQNr1kr1/KbB2n1n/BpR1R1q1/2b1BN2/1N2QrP1/2rR4/n4b2/3R4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 c5 Ke3 h5 a4 e5 f4 e4 g4 h3 d4 h2 f6 h4 f7+ Ke7 a5 b3 a6 b2 d6+ Ke6 f5+ Kf6 d7 Ke7 a7 c4 d5 c3 Kd4 h3 Kc5 e3 Qa4 c2 Ba6 e2 Nc3 b1N Bb2 c1N Na2 e1B Nb4 Qe8 Kb6 Nd3 d8R Bh4 Nf3 Ne5 Re1 h1R Nd4 Nc3 Rad1 h2 Re3 Rf1 d6+ Kf6 d7 Ke7 Qc2 h1R Qe4 Nf6 Rdd3 Nh7 f6+ Kd6 Re1 Rg8 Nf5+ Ke6 Rc1 Na2 Rc6+ Bd6 f8Q Bf2+ Bd4 Qg6 f7 Rh3 Re8+ Kf6 d8R Rf3 Rd7 Rc1 Ree7 Rf4 Qe8 Rc3 f8B Kg5 Re6 Nf7 Bg7 Bf8 Rdd6 Be7 Be5 Nd7+ Kb5 Rb8 a8N Nb6 Rd5 Bc5 Bc7 Bd6 Be5 Bdc5 Ne7 Kh6 Rd1 Rf5 R5d3 Rf6 Qd8 Kg7 Qd6 Kf8 Ka5 Nd5 Nb6 Rf4 Kb5 Bd7 Nbc8 Nb6 Ka5 Na8 Kb5 Be8 Qd8 b6 Nf5 Nh8 Bb7 Nf7 Ka6 Rc4 Ka7 Rc3 Qh4 Bd7 Qh2 Be8 Ba6 Bd7 Nce7 Bc8 Qg3 Bb7 Nc8 Bfe3 Qh2 Bf2 Bd4 Be1 Bd8 Qh6 Nce7 Rf3 Qhf4 Rc8 Qb8 Rf4 Bc7 Bf2 Bde5 Rd8 Nc8 Qg6
b1Q1B3/5Rp1/r5P1/1nb2RBr/1nrNnNQ1/r4KBb/1b2q3/2NkN2R w - - 0 1 illegal: No possible last move
k1N1rBr1/3p1b1R/B2bbrN1/1QN5/K3n3/1q1n1Qb1/2PB1N2/Q1nr3R w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 b4 a5 f4 e5 g4 e4 b6 d3 Kc3 e3 Kb3 d2 f6 h3 b7 h4 g5 a4+ Ka3 e2 f5 e1B g6 h2 g7 h3 Bd3 Na6 b8N Qb6 f7+ Kd8 f6 Kc7 Bb5 Kb7 Nf3 Bd6 f8B Nc5 f7 Beg3 Na6 Nf6 g8N Nd3 Nh4 Ne4 Ne7 Rg8 Nc5+ Kb8 Nhg6 Bb7 Nc3 Bd5 Qg1 d1R Ba6 Be6 b5 Ka7 Bf4 Re8 Bd2 Ka8 Nc8 Nc1 Kb4 a3 Ka4 a2 Qf1 Qb8 b6 Nd3 Rc1 a1N Qg1 Rf1 Nd1 Rf6 Nf2 Nb3 Re1 Nbc1 Re3 Ne2 Qa1 Nec1 Rf3 Qb7 Rf5 Qb8 Rh5 Qb7 Rh7 Qd5 Rg1 h1B Rd1 h2 b7+ Kb8 Rf1 Bf3 Rd1 h1R Rg1 Bh5 Re1 Kc7 b8Q+ Kc6 Qbb2 Kc7 Qe5 Kb8 Qeb2+ Ka8 Qb5 Rg1 Rd1 Rg2 Rh1 Rg1 Bg7 Rd1 f8Q Qe5 Qf7 Qb2 Bf8 Qc3 Qg7 Qb2 Qh6 Qb1 Qf4 Qb2 Qf3 Qb1 Nh8 Bhf7 Ng6 Qb3+
1BQ3Q1/1RPK1rq1/5RNR/nn5B/1bkn2r1/rbn2QpQ/3B3N/b6r w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 a5 Kc4 e5 Kd5 g5 h4 g3 b4 g2 c4 e4 f4 a4 f6 d6 h5 g4 c5 e3 f5 e2 b6 e1R c6 d3 b5 a3 h6 a2 c7 d2 b7 Re7 b6 Nc6 b8R Ra3 h7 Na5 b7 Qd7 Qf3 d1N Be2 Nh6 Nh3 g1R Nd2 g3 Rb1 a1B Nf4 Rg8 h8Q Rg4 Rb6 Rf1 Rh5 Rh1 Nf1 Nc3+ Kd4 d5 Kc5 d4 Bd2 d3 Nh2 Qe6 Ng6 Nb5 Ra6 Qe5+ Kb6 Ke8 f7+ Kd7 f6 Nf5 Rh6 Kd6 Qg8 Qc3 Qg2 Be6 Qh3 Kd5 Bd1 Bg7 f8Q Kc4 f7 Nfd4 Qc8 Bf6 f8Q Bg5 Qf3 Rf7 Rba8 Bh4 b8B Be7 R8a7 Qb2 Rb7 Qc3 Bf4 d2 Be3 Kb4 Be2 d1N Bd2 Bb3 Bf4 Qe1 Bd2+ Ndc3 Bd1 Qe5 Be2 Nc2 Bd1 Qg7 Be2 Nc4+ Kc6 Nd4+ Kd7 Na5 Rf6 Kc5 Bd1 Kc4 Qe4 Rg5 Bh5 Rg4 Qf3 Bb4+
5br1/B1pb1R1n/1rk1N1Q1/2rR2qn/nnN1RQQ1/1BNP4/3b1N2/3K3r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 b4 h5 g4 a5 b6 f5 d6 h3 b5 a4 e5 h4 b7 h2 g5 h3 g6 f3 g7 f4 b6 a3 e6+ Kc6 e7 a2 e8R Rh5 d7 Qg5 Re4 Na6 b8Q Rh6 b7 Nf6 g8Q Nc5 Bc4 Nh7 d3 Na4 Bb3 f2+ Ke2 f1N Nc3 Rh5 Be3 f3+ Ke1 Ng3 Ba7 Rh6 Rb1 Rf6 Qg6 a1B Qe2 f2+ Kd1 f1N Qg4 Nh5 d8N+ Kd6 Rb2 Bd7 Ne6 Kc6 Rf2 Rf5 Rff4 Rc5 Rf7 Bb2 Qd8 Bc1 Qdf6 Bd2 Qff4 Rc8 Ke2 Ne3 b8N+ Kb7 Nc6 Nc2 Ne5 Nb4 Nc4 Kc6 Kd1 Rb8 Nge2 Rb6 Rf1 h1R Ng3 Rh2 Nh1 Rg2 Nf2 h2 Rf5 h1R Rd5 Rg3 Qe2 Qg4 Qgh6 Be7 Qff6 Nf4 Nh3 Qh5 Qff8 Rg7 Qg4 Qf5 Qhg6 Qg5 Qff5 Nh5 Qe5 Be1 Rf7 Bf8 Nf2 Rg8 Qef4 Bd2+
3QN3/1KpPbkN1/4qBn1/r1B3b1/n1r5/3Q3Q/1Rn1rR1N/1n1bbN1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 d4 g5 b4 f5 e4 f3 Ke3 f2 h4 g3 d6 g4 h5 a4 b6 g2 e5 g3 b5 f4+ Ke4 f3 Kd5 a3 d7+ Ke7 e6 a2 h6 Qe8 d8N Qg6 h7 Ba6 b7 Nc6 b8Q Qg4 b6 Be2 b7 Na5 Rh2 Nb3 Kc6 Ra5 d5 Nc5 Be3 Na4 Qd3 Bd1 d6+ Ke8 e7 Qe6 Be2 f1R Nd2 f2 Bc5 Re1 Qc8 f1N Rb1 a1N b8Q Nc2 Ngf3 g1B Rf2 g2 Rb2 Bh6 Qbb3 Bg5 Kb7 Bh2 Qa3 Bg3 Nh2 g1B Bf3 Re2 Bh1 B3h4 Qh3 Bg3 Qd3 B3h4 Ndf3 Nd2 Nf1 Nb1 N3h2 Bg3 Rf3 Be1 Rf2 Qf5 Ne6+ Kf7 e8N Ne7 d7 Ng6 Qd8 Rf8 Nf4 Qe6 h8B Be7 Bhd4 Rh8 Bc3 Rh4 Bf6 Rg4 Nh5 Rc4 Nf3 Bh2 Nhg7 Bf4 N3h2 Bg5
b3nn2/1P2R1n1/2QNBN1p/R3r3/rnQN3Q/2R1r3/qrb2bKR/1kB5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 g4 Ke5 d4+ Ke4 b6 a5 b7 f5 g5 c5 d6 f3 d7 h3 g6 f4 b5 a4 d5 a3 g7 c4 e3 a2 d6 h2 b6 c3 Na3 c2 Rb1 a1R Rb2 h6 Bb5 Ra2 Rb3 Nf6 g8Q Rb2 Ba6 Ne8 Bf1 Ra4 Bh3 Qh4+ Kf1 f2 d8R Nd7 Kg2 f1N b8R Ng3 Rc3 Nf5 Nf3 Nfg7 Ra8 Bb7 Ra6 Ba8 b7 Qg5+ Bg4 Qd5 Ra5 Qa2 Be6 Rh7 Re1 h1R Nb5 Rh5 Nfd4 Re5 Rh1 Be7 Rh2 Nf8 d7 Bh4 Qh1 Bf2 Rdc8 Rh8 d8Q Rh7 R3c7 Kd3 e4 Rh8 Qh4 f3+ Kh3 Rh7 Nd6 Rh8 Re7 Rh7 Bf4 c1N Qg2 Qd5 Rcc5 Na2 Bc1 Nb4 Rc8 Qa2 Qg6 Rc5 e5+ Kc3 Qge4 Rh8 Qc6 Rh7 Nb3 Kc2 Nd4+ Kb1 Qf7 Rc3 Qg8 Re3 Rcc7 Bg1 Rc8 f2+ Kg2 Nf5 Qgg4 Nfg7 Qe2 Rh8 Qec4 f1B+ Kh1 Rg8 Qd7 Nd3 Qb4 Nf6 Bh3 N8h7 e6 Bf2 Ree8 Rf8 e7 Nd5 Rc3 Nc7 Be6 Rf5 Qc4 Nb4 Qdc6 Bd3 Kg2 Rd5 Rd8 Rb5 e8N Rbe5 Nf6 Nf8 Rd7 Nce8 Re7 Bc2
1K4n1/1p2R1NB/Q2b3N/2N1n1qb/QPnn1Rr1/4k3/2bR3r/r1bBBR2 w - - 0 1 illegal: No possible last move
2Bkq2Q/R6K/1R3r1r/2B1r3/2Qn1n1r/3qQQ2/qq1BPbNp/1b1N3R w - - 0 1 illegal: No possible last move, all moves rejected
B3Qq2/rq3Q2/kN1Nqr2/B3B2r/2R1b1nq/n1b4R/KRP1Q1Rp/2r5 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 f4 a5 b4 e5 g4 d5 f6 Kd7 g5 Kc7 f5 Kb6 g6 h3 f7 h4 g7 e4 f6 h2 Na3 a4 Qh5 h3 Nb1 e3+ Kd1 d3 Bg2 d4 Na3 d2 Nf3 Nh6 g8R Ng4 Nh4 Bb7 Nf5 Na6 Nd6 Bg7 f8Q Be4 f7 Nc7 Qe8 Qh4 f8Q Ra7 Qff7 Ra6 Qhe5 Rh5 Nac4+ Ka7 Bb2 a3 Nb6 a2 Bc3 Bf6 Rb1 a1R Q5e6 R1a3 Rb2 Bh8 Rg5 Bg7 Rc5 Ra2 Rg1 h1Q Rc4 h2 Bf3 Qg2 Q6e7 Qgf2 Rg2 Bh8 Nd7 Rc6 b6+ Ka6 b7 Nb5 b8B Na3 Bc7 Be5 Ba5 Bf6 Nb6 Bg7 Nb5 Rf6 Nd6 Bh8 Be2 Qf5 Bf3 Qc8 Rb3 Qb7 b5+ Ka7 Ke2 d1R Rb2 Rc1 Qe5 Bd5 Kd3 e2 Q5e7 e1Q Qe2 Qef2 Kd2 d3 Be5 Bc6 Kc3 d2 Kb3 d1Q Bd5 Raa1 Be4 Qd5 Bf3 Rab1 Ka2 Qe6 Rb3 Be4 Rbc3 Bd3 Bc6 Be4 Rh3 Qbe7 Ba8 Qb7 Na4 Qf3 b6+ Ka6 Qed7 Qb8 b7 Qf8 b8R Rb7 Qde8 Rc7 Rb1 Ra7 Nb6 Qb3+ Ka1 Qb5 Ka2 Qbd5 Rb2 Qb7 Bf4 Rg6 Bg3 Bc3 Be5 Rf6
3QBqnk/rN3RR1/2Bnb3/4QQ1K/4N1P1/4qR1b/pbb1Q2r/Bqq5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 d4 f5 e4 Kf7 b4 Kg7 b6 h5 d6 a4 b7 a3 e5 c4 d5 h3 e6 c3 d7 h4 d6 a2 e7 c2 e8B h2 b5 h3 b6 Qc7 d8R Na6 b8Q Qc4 d7 Ra7 b7 Qd4 Bb5 Bd6 Nc3 Ba3 Qe2 Nc7 Ne4 Bb2 Bc6 Nb5 Nc5 Nd6 Qc7 Rh6 b8Q Kh8 Nb7 Rh5 Bd2 c1Q Qa5 Qe5 g4 Rh6 Kf2 f3 Bc3 Qd4+ Kg3 f2 Qc5 f1B Nf3 Qb1 Rg1 h1Q Ng5 h2 Ne4 Bh3 Rf1 Qg1+ Kf4 h1B Kg5 f4 Qf5 f3 Qc7 f2 Qb8 Rf6 Kh5 Qe3 Qc7 Qec1 Qca5 Qg3 Qae5 Qge3 Nec5 Bd5 Ne4 Bb3 Bd4 Qbd3 Rb1 Bc2 Bc3 Ba3 Rb3 Qdd1 Ba1 Bb2 Rg1 f1Q Rh1 Qeg1 Rf3 Qge3 Rh2 Qb1 Rhf2 Qdc1 Nbc5 Ba6 Nb7 Bc4 Rb8 Be6 d8Q Qfe1 Rc8 Qb4 Rc7 Qbc5 Rg7 Rg6 Qfg5 Qca3 Rff7 Rf6 Rf1 Rf2 Qgf5 Rh2 Rf3 Nc8 Bd5 Qf8 Bdc6 Nd6
N1nQ4/4R3/bBBR2qr/1Bn2br1/bNQ1PN2/b3p2n/1n1N1q1k/4RK2 w - - 0 1 illegal: No proof kernel
1Bq1Nn1K/1B4N1/1nNQ1b2/qb3Qp1/3B1B2/3PR1q1/q1k3br/Rr1b3Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kd6 b4 Ke5 h4 Kd4 d6 f5 e5 a5 b6 g5 e6 c5 e7 g3+ Kf3 g2 e8N c4 d7 c3 b7 c2 h5 a4 b5 a3 h6 a2 b6 Qc7 d8Q+ Nd7 b8B Be7 b7 Nf6 h7 Nd5 Rh3 Nf8 Ng7 Qa5 Ne2+ Kd3 Qd7 g1Q Bg2 Bf6 Nd4 Nb6 Nc3 Qe1 Ba7 Rb8 Nd5 Qh4 Nc6 Qg4+ Kf2+ f3 Qf7 f4 Nc7 Be6 Nce8 Bb3 Qe6 Nbd7 Bd4 Nb6 Qd6 Ba4 Qh1 Qg3+ Kf1 f2 Be4+ Kc4 Ke2 f3+ Ke3 Kb3 d3 f1B Bd2 c1Q Bd5+ Kc2 Ke4 f2 Kf5 Be2 Bf4 f1B Qf3 Rc8 b8B Bb5 Qh1 Bd1 Qe4 Rg8 h8Q Bg2 Qh4 Rh8 Qee5 Nfd7 Kg6 Nf8+ Kf7 Rh7 Kg8 Rc7 Qf5 Rb7 Rh1 Rh6 Re1 Rh7 Qh1 Rh2 Rb1 a1Q Re3 Q1a2 Ra1 Kd2 Nb4 Qc8 Nc6 Bh5 Kh8 Kc2 Na7 Rf7 Bb7 Bd1+ Qh7 Re7 Nc6 Re5 Qh3 Rc5 Qh7 Rc4 Qh3 Rb4 Qh7 Rb1 Qh3 Bh5 Qf5 Bd1+
3Qr2k/2n1rB2/N1q3r1/3Pnb2/NR1B2R1/3R1B1p/2BKqQb1/b1rN1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 e4 c5 b4 f5 g4 Kf7 b6 Kg7 d6 h5 d5 h3 d7 c4 e5 c3 b7 h4 g5 f3 b5 f4 e6 a4 g6 h2 b6 h3 e7 c2 e8B a3 Bd2 c1R Be3 a2 Kd2 f2 Qc2 f3 Bf7 Ra6 Bg2 f1B Ne2 f2 Bd4+ Qf6 d8Q Nc6 b8N Bf5 b7 Ne5 Rg1 h1Q Bf3 Bg2 Nbc3 f1B Nd1 Qc6 Nec3 Nf6 Na4 Ne8 Rb1 a1R Rb3 Rh7 Rd3 Kh8 Qa2 Ra8 Na6 Nc7 b8R Rab1 Rb2 Rg7 Rb8 Rb7 Qb2 Rba7 Rb4 Rg8 Qa2 Bg7 Qc2 Rb8 Qc5 Bf6 Qc2 Rb6 Qa2 Re8 g7+ Kh7 g8B+ Kh8 Qb2 Qc3+ Ke3 Bg6 Nf2 Ng4+ Kf4 Na8 Be4 Rae7 Re3 Nc7 Bh7 Bf3 Bc5 Rg8 Nd1 Rge8 Qf2 Qc2 Reb3 Ba1 Bd4+ Ne5 Ke3 Rbe6 Rg3 Qc6 Kd2 Qg2 Bc2 Bgd3 Bf5 Rg6 Bg4 Bf5 Rd3 B3e4 Be2 Qf3 Rg1 Qg4 Rgg3 Beg2 Bf3 Qe4 Rg4 Qe2+
4q3/1rR5/b2B2n1/R1pP1BRr/2QbQ1r1/N1RN1QNk/3nrb1b/3K2q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 a5 b4 c5 e4 f5 b6 g5 b7 g3 b5 g2 d6 Ke6 e5 f3 b6 a4 h5 g4 h6 g3 d7 f2+ Kd2 f4 h7 Kf5 e6 f3 e7 Kg4 e8Q a3 d5 a2 Bd3 f1R Ne2 g1B Na3 g2 Rh3 Nf6 Ng3 Nc6 b8N Re1 b7 Bf2 Na6 g1Q b8R Bd6 Rb7 Rb8 Rc7 Ne5 Nb4 Ng6 Qe4+ Bf4+ Kc2 Qe8 d8R Rb7 Rdd7 Re3 Rg7 Re2+ Bd2 Rg8 Qc4 Ne4 h8Q Bd6 Qh7 Rh8 Rg8 Bf4 Qe7 Rh5 Kc1 Be5 Bf4 Nd2 Be4 Bed4 Bd6 Be5 Nd3 Bed4 Rb1 a1B Rb5 Be5 Ra5 Bad4 Nh1 Bh2 Ng3 Rb4 Qf1 Ba6 Kd1 Rb7 Rg7 Be1 Qg2 f2 Qf6 f1R Qff3+ Kg5 Bf5 Rff2 Qe3+ Rf4 Qee4 Rg4 Qgf3 Bef2+ Nf1 Rf4 Rg3+ Kh4 Rg5 Qg2 Ng3 Rg4 Rg8 Kh3 Rh8 Qb5 Ra8 Qe8 Rb8 Ra7 Rb3 Rb7 Rc3 Qg1+
1RB2r1Q/Qn5N/N1q1R2n/rPbk2K1/3Bbrn1/1Rqr1Np1/8/2Q1R2n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 f4+ Kd2 a3 h7 a2 Bb2 g4 Nc3 g2 Rb1 a1Q Qc1 f2 Nf3 g1N Bh3 Nd7 b8N f1R Na6 g3 Bf5 Qb6 e5+ Ke7 e6 Kd6 e7 Nc5 e8Q Qc6 Qf7 Bb7 Bc8 Nh3 Ke2 Rd1 Re1 Nh6 Qg7 Rg8 h8Q Rd3 Qf7 Qa3 Ba1 Rg4 Rb3 Nf2 Qfh7 Rb8 Q7g7 Ba8 Qa7 Nb7 Bb2 Nh1 Ne4+ Ke7 Nf6 Kd6 Ba1 c3 Nh7 c2 Bc3 Qac5 Bb2 Qc3 Ba1 Ke7 d6+ Kf7 d7 Ke6 Bb2 Kd5 d8R+ Bd6 Rg8 Bc5 Rg6 Rh4 Re6 Rg4 Qe3 c1R Qd2 Ra1 Qc1 Ra5 Ba1 Kc4 d5 Rh4 d6 Kd5 d7 Rg4 Kf1 Rh4 Kg2 Rg4 Nfg5 f3+ Kh3 f2 Nf3 f1N Bb2 Nh2 d8R+ Nd6 Rde8 Rf4 Rg8 N2g4 Kh4 Nb7 Kg5 Qb4 Bd4 Qc3 Bd7 Rbf8 Bc8 R8f7 Bd7 R7f6 Rb8 Rf8 Bc8 Qc7 Rc6 Kc4 Qf6 Nd6 Rcb6 Be4 Qg7 Nb7 Qh8 Kd5 Re6 Qc6
QNR2n2/qqN3N1/b1qB2rk/1p1r2rr/5nK1/1Q1R3N/1b2Q1P1/RB4q1 w - - 0 1 illegal: No possible last move, all moves rejected
2rBk3/1N2b1Kb/1B1R1n2/PnB4q/q1B3q1/QrpRRnN1/1nq1N1Q1/8 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Kf3 c5 Kg4 b5 Kh5 c4 f4 h6 Kg6 e4 a4 h5 d4 b3 g4 e3 d6 b4 d7+ Ke7 a5 c3 d5 e2 g5 e1N Qg4 b2 Be3 b3 Bb6 h3 Bc4 h2 Ne2 h4 Qg2 h3 Nd2 b1Q Ne4 b2 N4g3 Qa2 Rd1 b1Q Rd3 Nf3 Rhd1 h1Q R1d2 Qc7 d8N h2 d6+ Ke8 f6 Be7 f5 Qa4 Kg7 Nc6 g6 Ncd4 Nb7 Rb8 Rd1 Nb5 f7+ Kd7 f8Q Nf6 Re3 Qbc2 Rdd3 Qhd1 Nd8 h1N Nb7 Nd5 f6 Qc5 f7 Nf6 Ne4 Qh5 N4g3 Kc6 d7 Nf2 d8B Bf5 Qg8 Qg1 f8B Nd1 Qf7 Nb2 Qe6+ Bd6 Qe7 Ba3 Qb4 Rc8 Bd6 Kd7 B6e7+ Ke8 Bec5+ Be4 Qb3 Bb4 Qa3 Qgd1 Rd6 Qg4 Red3 Qh1 Re3 Qhh5 Rdd3 Rh6 Bbc7 Nbd4 Bf8 Nh7 Kh8 Qgd7 g7 Qdg4 g8R Rb6 Rg6 Bd6 Bfe7 Rb3 Kg7 Nb5 Bb6 Bc5 Bf6 Bd6 Bfd4 Be7 Bdc5 Bf5 Kh8 Be4 Rgd6 Bg6 Kg8 Nf6+ Kg7 Bh7+
1k2n1b1/2R5/nNR5/p2R1b1b/rR1bN1P1/1n1K1N2/rq1BBB1n/5qQQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 d4 h5 Kd2 c5 e4 Kc7 e5 f5 e6 h3 e7 h2 e8Q c4 Qee1 f3 Ra6 f4 Nc3 f2 Nf3 h4 Ne4 h3 Be2 c3+ Kd3 f1Q Bd2 c2 d6+ Kb7 g3 Bg7 b6 Bf5 d7 Qf6 d8B Rh4 d5 Qb2 d6 Nf6 d7 Ne8 b5 Bd4 Bf6 Rg4 d8R Rh4 Rg1 h1B Rd5 h2 Qc1 Kc8 b7+ Kc7 Rad6 Na6 Rc6+ Kb8 Qa1 Rg4 Bh4 Bg2 Qab1 h1B Qf2 Bh3 Rg2 Bg6 Qg1 Bh5 Qe1 Rg5 Qc1 Bf5 g4 Rg6 Bf2 Rg7 Qb1 c1N+ Kc4 Nb3 Kd3 Rg6 Rc7 Rc6 Qd1 Rc2 Rh2 Bhg6 Rh6 Bh5 Rhc6 Rc4 Qe1 Ra4 Qa1 Qg2 Qaf1 Qh3 Qfg2 Ra2 Q2h2 Qf1 Qh3 Bg2 Qhh1 Qfc1 Ne1 f3 Rh7 Nac7 Bh4 f2 Re5 f1N Bf2 Bd7 Ng5 Bd5 Nef3 Nh2 Ne4 Bg8 Rd5 Bf5 Rg7 a6 Rh7 Ka7 b8N a5 b6+ Kb7 Nd7 Rb8 Rf7 Ka8 b7+ Ka7 Rh7 Na6 Rg7 Ra8 b8R Qf1 Rbb6 Rb8 Rf7 Na1 Rb3 Rb4 Nb6+ Kb8 Rfc7 Rba4 Rb4 Nb3
2B1bRB1/r4Q2/r3n2p/3QR2N/1brr4/n2P3q/B1kq1nQn/1R2BN1K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 Kd4 Kg2 c5 g5 a5 b6 f5 d6 h3+ Kh2 c4 e5 a4 b7 c3 b5 c2 e6 f3 b6 f2 e7 a3 e8B h6 g6 a2 g7 f4 d7 f3 Bh5 Ra7 Bd3 f1Q Bg4 f2 Qe2 Bb4 Bc4 Nf6 g8B Nc6 b8Q Ne8 b7 Ne5 Qc7 Ng7 b8R Ne6 d3 Qg5 d8Q+ Bd7 Bf4 c1R Nd2 Kc3 Rb1 a1R Bg3 Be8 Qd5 R1a6 Ba2+ Nc4 Qf7 Kc2 Qef3 Qe3 Qg2 Na3 Ne2 Qd1 Rg1 f1N+ Kh1 h2 Be1 Qh3 Ng3 Rh7 Ra8 Rg7 Bf5 Rg4 Nh5 Rd4 Bg4 Nf8 Bc8 Ne6 Ne4+ Qd2 Neg3 Ne3 Nf1 Ng4 Ra1 Kb2 Rb8 Rcc4 Rb1+ Kc2 Qgf2 Ne3 Rg5 Ng4 Re5 Qh4 Kg2 h1N Kg1 Nh2 Qfg2 Nf2 Ra8 Ne4 Kh1 Qh3 Bb7 Bd7 Rf8 Be8 Bc8 Nf2+
6r1/2n1kqBN/b2pqn1N/4R2P/1R3QBb/QN2q3/bKr4R/B1Rbq3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h6 g5 Kd2 a5 e4 f5 c4 a4 Kc2 f3 h4 g4 b4 a3 e5 a2 h5 f2 e6 g3 e7 f4 h7 f3 b6 g2 b5 Ra7 c5 Rb7 c6 Rc7 b7 d3+ Kb2 d2 b6 Bh6 Rh2 Nf6 Qa4 d1B Be2 f1Q Nd2 f2 Qa3 Ba4 Ngf3 g1Q Ng5 Rg8 Bg4 Na6 b8Q Qc4 b7 Bc2 Nb3 Bb1 h8N f1B Nh7 Bg5 Nf7 Bh4 Bh6 Qe3 Bg7 Be2 Nh6 Bf3 Qd6 Qf7 Qa3 Bbe4 Rd1 Be2 Rd4 Bb1 Qd6 Bf3 Qa8 Be2 Qf4 d6 Rb4 Qd7 Qa7 Qf5 Qa8 Rd7 c7 Rd8 Qa7 Kd7 e8R Bf3 Ree4 Q5e6 Re5 Ke7 b8B Bcb7 Ka3 Rc8 Qa8 Be2 Ba7 Bef3 Bd4 a1Q+ Ra2 Qac3 Rh2 Qce1 Ba1 Bd1 Kb2 Ba2 Qa7 Rcd8 c8R Rd7 Rhc2 Rc7 Rh2 Rc5 Rc6 Nc7 Qa3 Rc3 Rcc4 Ba6 Rcc5 Rd3 Rcc2 Rc3 Rc1 Rc2+
4Rnb1/3nK3/NkP1R1rN/2p2n2/R2r1QB1/1N1q1QqR/3B1bn1/1B2b2b w - - 0 1 illegal: No proof kernel
1n1NNb2/Q7/2pr1RKB/1knb1qnB/Rr3b2/2Q1N3/Pn1Q2R1/1b2Q2q w - - 0 1 illegal: No possible last move, all moves rejected
K3B1Nb/1q3q2/nbp1R1QQ/BQNNr1P1/bB2q3/1n2r2N/5R2/2q1b2k w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 e6 b4 e3 f5 a4 b6 e2 g5 e1Q f6 h3 b5 h2 f7 a3 b7 h4 b6 a2 Nc3 h3 Ba3+ Kd7 d6 Kc6 d7 Qe8 d8B Ra5 Bb4 Re5 Qh5 Qc1 Qg6 Nf6 Nd5 Na6 b8Q Bd7 b7 Ne4 d3 Be7 f8Q Qf7 Qfh6 Nd2 Be2 Rg8 Bh5 Re8 Rb1 Bf6 Rb2 Bh8 Rc2+ Nc4 Rf2 Na5 Ne2 Re7 Re1 h1Q Ng1 h2 Nh3 Qg2 Re3 h1Q Ree2 Qa3 Re3 Nb3+ Kc4 a1B d4 Qe4 Re1 Be8 Re3 Kd7 Kb5 Qac1 Ree2 Nbc5 Ka5 Kd6 Re1 Ba4 Re3 Kd7 Re1 c6 Kb6 Nb3 Ka7 Qf1 Bda5 Qb5 Ka8 Qb6 Ndf4 Qc7 d5 Bd4 d6 Bb6 Bf3 Rc5 Bd1 e5 Nd5 Rc3 Bh5 Re3 Nf6+ Ke6 d7 Re8 Ng8+ Kd5 d8N Qef5 Qc8 e4 b8N Q7f6 Qgg7 Rc3 Nb7 e3 Qcd7+ Ke4 Qd8 e2 Nd7 Re6 Be8 Qf7 Nbc5+ Ke3 Rd1 e1B Qgg6 Re5 Rd6 Qe4 Re6 Rd3 Ndf6 Qce7 Rb2 Kf3 Rf2+ Kg3 Qd6 Re3 Qd3 Qc7 Qb5 Qce7 Rf3+ Kg2 Rf2+ Kh1 Nd5 Qb7+
2B3n1/2qRQQqk/1p1N1rn1/1r1nPK1b/2QB1B1N/3NB3/qq3n1R/6b1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 f5 Kf3 Kf7 d4 c5 a4 g5 e4 Kg7 h4 b3 a5 b2 a6 c4 d6 c3 a7 b6 d7 c2 h6+ Kg6 h7 Bd6 h5+ Kg7 d5 Bc5 d6 Nc6 Ba6 Nce7 Na3 b1Q Rh2 Qa2 h6+ Kg6 Bd2 c1Q Nb5 Qcb2 Qf1 Be3 Qf2 Qc7 d8N Qg7 d7 g4+ Kg2 g3 Kf3 g2 Ne6 Bb7 Rd1 Re8 a8Q Bd5 Nc5 Bf7 d8Q Bd4 Ke2 f3+ Kd3 f4 Bc8 Be3 Qh4 f2 Qad5 f1N Nf3 g1N Qf2 Qgb2 Qc4 Nh3 Bc1 Bd4 Rd2 Ne3 Nh4+ Kg5 Qd7 f3 Qe2 f2 Qde6 Bg6 Qf7 f1Q Rd1 Qg1 Qe1 Nf6 Qeb4 Rhg8 h8B Qgg3 h7 Bh5 Bg7 Qgg2 h8B Qg1 Bf8 Rg6 Bfg7 Nfg8 Be5 Kh6 Bf4+ Rg5 Bg7+ Kh7 Qa3 Nc2 Qab4 Bf2 Bce3 Rf5 Bge5+ Qg7 Qa3 Ng6 Qa7 Qc6 Qac7 Re6 Qce7 Qc7 Bc3 Nd4 Rd2 Rd5 e5 Nc6+ Ke4 Bg1 Kf5 Nb4 Rd4 Nf2 Nd3 Rc5 Rd7 Nd5 Nd6 Rb5 Bcd4 Rf6+
2k1n3/b3bPN1/2BR3B/3rQb2/qqB1n3/4pNNn/K1Qb4/RrR2nR1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 Kd2 c5 Kc2 a5 Kb3 e5 g4 h5 f4 c4+ Ka2 h3 b4 a4 b6 a3 d6 h2 f5 h4 b5 h3 d5 c3 b7 e3 g5 e2 g6 e1Q f6 e4 g7 c2 b6 e3 f7 Nf6 g8B Ra5 Bh7 Qe8 Nc3 Na6 b8Q Nc5 b7 Nce4 Nf3 Be7 Ne2 Qb4 Rg1 h1N Ng3 h2 Bc4 Nhf2 Bb2 c1B Qc2 h1N Be5 Nh3 Bf4 Kd8 d7 Bd2 Qe5 Rb5 Bg6 Rh5 b8R Rb7 Bh6 Rb6 Ne2 Nhg3 Bf5 Nf1 Ng3 Rb5 Rb6 Rg5 Rd6 Kc7 d8R Rb6 Ne2 Qeb5 Ng3 Ne8 Bd7 Rh5 Bc6 Bf5 Ra8 Rb8 Rc1 Kc8 Rg6 Rg5 d6 Rh5 Ka1 a2 d7+ Kd8 Rd6 Kc7 d8N Kc8 Qb3 Rg5 Kb2 a1B+ Ka2 Bd4 Ne6 Ba7 Ng7 Bd7 Qf6 Rd5 Qc2 Bf5 Qe5 Qb1+ Ka3 Bd4 Ra6 Ba7 Ra4 Qa5 Bg5 Qbb6 Bf4 Qba6 Bh6 Rb1 Qcb2 Qc5+ Kb3 Qaa5 Ra1 Qab5+ Ka2 Qcb4 Qc2 Q5a4+
N3r3/nRbQPnr1/qN1Nn2Q/b1b2bN1/8/4p3/RBq2k2/B1K1nB1R w - - 0 1 illegal: No proof kernel
2KqR3/q1QpR3/k2rB3/3PQ1B1/1RRqB1r1/2Q4N/b1b1bn2/qbn2N2 w - - 0 1 illegal: No possible last move
Q3Nb1q/1P2Nkq1/1r4bn/7q/3b1b2/BNQ1R2B/p1r1R1q1/1QK1nRR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 h4 g5 e4 c5 b4 a4 d6 f3 d5 f2 h5 c4 d7+ Kf7 h6 a3 h7 g3 d6 g2 e5 f4 b6 f3 b5 g4 b7 a2 b6 g3 Nc3 Ra6 Ba3 Nc6 b8R Nb4 b7 Nd3 Nge2 g1Q Nd4 g2 Qb1 Rb6 Nd5 Ne1 Kc1 c3 Nb3 c2 Ne7 Nh6 Rh3 Qe8 d8Q Bf5 d7 Bg6 Qc8 Qh1 d8Q g1B Qc3 Qd7 Rg3 Qh5 Bh3 f1Q Ra8 f2 Re3 Rg8 h8R Qg2 Rb8 Rg7 Rg8 f1Q Re2 Bd4 e6+ Kf6 Ra8 Qfh1 Ra5 Qhh2 Qa8 Qb8 Rae5 Qbc8 Kd2 c1B+ Kd1 Bg5 Re3 Bf4 Kc1 Qce8 Nf5 Qb8 e7 Kf7 e8N Rh7 Ne7 Qbe5 Qc7 Qh8 Qc6 Bd3 Rg5 Bg6 Qc3 Qc7 Rg3 Qce5 Rf3 Qeg7 Rf1 Bc5 Rg1 Qgd5 Bf5 Qg4 Qbb2 Ng8 Rd2 Bd4 Bd7 Nd3+ Kc2 Rh2 Raf1 Qgh5 Qb1 Ne1+ Kc1 Nh6 Rb2 Rd2 Bh3 Qg2 Rc2 Rd3 Rcf2 Rd2 Rfe2 Rc2+
RQ1b4/Np1Rbr2/2B4K/n2Q3P/1RRB2r1/1b1qqb2/kn1N2n1/3NnQ2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 e5+ f6 e4 h4 g3 a4 b3 d4+ Kb4 f4 c5 d6 g2 f5 c4 h5 e3 d5 b2 a5 e2 d7 e1N a6 c3 a7 c2 d6 Kb3 Rh4 Nc6 Bb5 Na5 Ne2 g1B Qd2 Ne7 f7 Ng6+ f6 Rg8 Rd4 Nf4 Nec3 Nfg2 Raa4 Be7 Rdc4 Bb6 f8Q g6 Kh6 g5 f7 g4 Nd1 g3 Qe8 Rg4 Rab4+ Ka2 Qd5 Bc7 Be3 c1N f8Q Ncd3 Nd2 b1B Ba4 Bc2 Bd4 Bb3 Bc6 Nb2 Qef7 Qe8 d8N Qd7 Qf2 Qf5 Qf1 Qd3 Qe8 Bf5 d7 Be4 Qh8 Bf3 Qhe5 Rc8 a8R Bb6 Qb8 Bc7 Nf7 Rf8 Nd6 Rf7 Nb5 Bcd8 Na7 Nh4 Bc5 g2 Bf2 g1Q Bd4 Bc7 d8R Nhg2 Rd6 Bcd8 Rd7 Qge3+
R2r3n/Pn6/2nq2pN/k3NK1B/nq2QR2/2Q1R3/bB2rQrB/bQ3r2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 e5 Ke4 b5 h4 c5 f4 Kc7 a4 Kb6 d4 c4 a5+ Ka6 f6 c3 d6 g3 d7 c2 f7 b3 f5 b2 f6 g2 h5 Ra7 h6 Ra8 h7 Qb6 d8B Ba3 f8Q Be6 d5 Nc6 f7 Nge7 d6 Ba2 d7 Ng6 Kf5 e4 Nf3 g1R Nh4 e3 Bc7 e2 d8Q e1N Be2 Rg2 Nd2 b1Q Nc4 b4 Q8d4 b3 Bh5 b2 Bh2 Nd3 Ne5 Re8 Qc3 Nc5 Re1 Nb7 Re3 Rd8 Qe7 Rhe8 f8Q Nh8 Qg1 Kb5 a6 Qc7 a7 Qd6 Qe6 Bc5 Qff7 Bd4 Qd5+ Ka6 Qe4 Re7 Qfb3 Re6 Qf2 Re7 Bd2 c1R Qbc2 Rf1 Bc1 Qb4 Qd1 Qd3 Qde1 b1N Bb2 Ka5 Qd1 Nf7 h8R Qa6 Rg8 Nh8 Qdc2 Qb6 Re8 Qc5 Qc1 Qd6 Rf8 Na3 Qcb1 Nc4 Rg8 Nb6 Re8 Na4 Rg8 Rdd7 Ra8 Bd5 Ra3 Rd8 Rf3 Ba2 Rf4 Re1 Nf7 Rc1 Nh6 Rf1 Nf3 Re6 Qed3 Re4 Ne5 Re2 Qe4 Rc8 Qcc1 Rd8 Re3 Bc3 Ba3 Bb2 Qc3 Ba1 Bb2 g6+
1QbN4/3N1p2/R2rB3/1qbn1P2/4BN1q/1Qq2bRn/B2n2b1/KR2B1kb w - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 b5 axb5 g5 Ke2 gxh4 Ke1 Ra6 Qd3 Rd6 Qd2 cxd4 Qd1 d3 Bf4 d4 Bc1 Rd5 exd5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kd7 f4 Kd6 g4 Kc5 c4 e5 b6 h5 d6 a4 g5 e4 g6 h3 b7 h2 d7 a3 b3 a2 g7 h4 Ne2 h3 Nbc3 Qg5 d8N Nc6 b8R Nb4 Nd5 Nf6 g8B Rh6 Rg1 h1B Rg3 h2 Bh7 Bg2 Nb6 h1B Qc2 Nbd5 b4+ Kd6 b5 Kc5 Bb2 e3+ Kc1 Ne4 Qb3 Rd6 Bc3 d2+ Kb2 d1B Be1 Nd2 Be4 d3 f5 Qh4 Nf4 Kd4 c5 Bdf3 c6 e2 c7 Ke3 Nd7 Be7 Rb1 a1Q+ Kc1 Qa7 Kb2 Qc5 b6 Qb5 b7 Bf8 Ra8 Be7 b8Q Bf8 Rg5 Be7 Bg3 e1Q Ra6 Qc1+ Ka1 Qc2 Bh2 Kf2 Bg3+ Kg1 Be1 Bf8 Rg3 Qc3+ Qb2 Nc4 Be2 d2 Bd1 Be7 Bb3 d1N Ba2 Nf2 Qa8 Qc1 Qb8 Nh3 Qb3 Nd2 Nf8 Bb7 c8B Qcc4 Be6 Bc8 Nd7 Qc3+ Rb2 Rc6 Rg5 Bc5 Rg3 Qe3 Rb1 Rd6 Rg8 Qed3 Rg3 Qc3+
q2Q1n2/2q1r1BB/4r2N/R1R2prk/1n1NB3/RQ5N/1R2qP2/qn2Kbq1 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 b4 f5 g4 Kf7 b6 Kg6 d5 e5 b7 h5 b5 a5 b6 a4 g5 e4 d6 e3 d7 h3 Na3 h4 Be2 h2 Bb2 h3 Nb5 a3 Nd4 a2 Bf3 e2 Be4 Kh5 g6 Rh6 g7 Nf6 g8B Na6 b8R Nh7 b7 Nf8 Bh7 Re6 Qb1 d1N+ Kd2 e1R c4 Re7 c5 Nc3 c6 Qc7 d8N Nb4 Nf7 Be6 Rc8 Bc4 b8R Re3 Qc2 Nb1+ Kd1 d2 Qb3 Ra6 Nh6 Rg3 Ra8 Rb6 Ra3 Bf1 Bc3 Rg5 Ra5 Qb8 c7 Rbe6 Ra3 Qb6 Rb8 Qa7 c8Q Qc7 Qd8 Nd5 Nge2 Nb4 Rg1 h1Q Nf4+ Kh4 Rb5 h2 Nh3 Kh5 Rc5 Qg2 Bb2 h1Q Raa5 Qgh2 Rg3 Q2g1 Rd3 Na3 Rb1 a1Q Bc3 Qa2 Rb2 Nb1 Nc2 Qhg2 Bg7 Qa1 Nd4 Q2h1 Qc4 Qhg2 Rda3 Q2h1 Qb3 Qhg2 Bc2 Qa8 Be4 Bg2+ Ke2 Bf1+ Kf3 d1Q+ Ke3 Qc1+ Kf3 Qc4 Ke3 Nc3 Kd2 Nb1+ Ke1 Qe2+
Rr2Qr2/r3B1p1/4k3/nbb1qNK1/2bB2BR/r4rP1/1R1N2rN/4rNQ1 w - - 0 1 illegal: No proof kernel
2n4R/1Q1q2b1/5qR1/q3qqpK/4nNPR/2b2r1q/B2NbQ1B/3kNB1R w - - 0 1 legal: proof: f4 c5 h4 e5 a4 exf4 d4 cxd4 h5 g5 Nc3 a5 Nb1 b5 axb5 Ra7 Kd2 Ra6 Ke1 Rg6 hxg6 Qb6 Bd2 Qf6 Bc1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 e4 f5+ Kh5 d5 b4 d3 g4 Kd4 c4 a4 e5 d2 e6 Ke3 c5 a3 b6 f3 c6 f4 g7 f2 e7 a2 e8B f3 b5 d4 b7 d3 b6 Nf6+ Kh6 Nbd7 b8Q Ne4 c7 Ba6 b7 Nb6 Bg2 f1Q c8R f2 Rc5 Nc8 Nf3 Qa5 Qb3 Ke2 Bh5 d1Q Rc6 d2 Bf7 Qde1 Qe3+ Kd1 Kh5 Be2 g8N Bg7 Nf6 Rf8 Rh4 h6 Nd5 Bc3 Kg6 h5 Nf4 Bg7 Qa8 Bc3 b8R Qe5 Rh2 h4 Kh5 h3 Rg6 Qa5 Rh1 h2 Qb7 Bg7 Ba3 Qe5 Bd6 Qa5 Rg1 h1Q+ Bh3 Qh2 Rh1 Qf5 Bc7 Qfg2 Ra8 f1Q Qf2 Qhg3 Rh2 Qgh1 Bg2 Qf6 Rh4 Qhh3 Qfa7 Qff2 Bf1 Qc5 Rb8 Qcf5 Qf2 Qgh2 Ne6 Qhe5 Nf4 Kc1 Ra8 d1Q Nbd2+ Kc2 Rb1 a1B Ba2 Bc3 Ra1 Qb1 Bb8 Qbb5 Bd6 Qbd7 Rb8 Qb1 Ne1+ Kd1 Ra8 Nb6 Re8 Nc8 Rd8 Rf7 Rh8 Qa5 Ne6 Rf8 Bh2 Qf5e5 Nf4 Qfe6 Nd5 Rf3 Nf4 Q6f6 Ned3 Kc2 Bg2 Qbb5 Rf1 Qed6 Ne1+ Kd1 Rh1 Qbf5 Bf1 Qde5
4B3/3nr2p/2nQqrqk/1Q4rb/3B3R/QR1Q1B2/NrN1nr1P/1R1rK3 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 b4 Kf7 c4 Kg6 e4 d5 b6 a5 b5 d3 c5 d4 e5 a4 e6 a3 b7 a2 c6 Ra5 e7 Qe8 c7 Nd7 b8Q Kh6 f5 g5 f6 g4 b6 g3 f7 g2 f8R Rg5 b7 Qg6 e8B Ne7 Rf5 Nc6 Be2 f1R Rf8 f2 Nf3 g1N Nc3 Qe6 Rb1 a1Q Rg8 Qa6 Na2 Re1 Rb2 f1R Rb3 Rf2 Bb2 Qb6 Rg7 Rf8 Re7 Qg6 Re4 Rf6 Qa7 Qa6 b8Q Qc4 Qa4 Qe6 Qab5 Bb7 c8Q Ba8 Kc1 d2+ Kc2 Bb7 Qd6 d3+ Kc3 Ba6 Qa8 Bb7 Qc2 d1R Qaa3 d2 Nd4 Rb1 Bf3 d1R Qcd3 Rdd2 Ba1 Rbb2 Nc2 Qh3 Rd4 Re7 Rdb4 Qe6 Ra4 Nh3 Rb1 Nf4 Rd4 Rfg2 Re4 Rdf2 Reb4 Ne2+ Kd2 Ba6 Qba5 Bc4 Qb5 Bd5 Ke1 Be4 Rc3 Bf5 Rbb3 Bg4 Rc4 Bh5 Rh4 Rd5 Qf5 Rd2 Qfd3 Rg5 Ncb4 Rbc2 Bd4 Rb2 Nc2 Rd1+
2nrQB2/3rQ1NB/B2RKr2/Rq3n2/1qB2prR/1nN2PnN/8/3nb2k w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Bf4 Be6 Bd2 cxd4 Bh6 d3 Be3 d4 Bc1 Bd5 exd5 Qc8 Nf3 Qc7 Ng1 Qd8 Kd2 Kd7 b4 Kd6 g4 Ke5 c4 Ke4 c5 h5 d6 e5 g5 a5 b6 f5 g6 a4 b7 h3 c6 h2 b5 a3 d7 a2 b6 h4 c7 h3 c8B f4 g7 Ra7 Bb2 Qe8 d8Q Nd7 b8R Nh6 g8B Bb4+ Bc3 Nf5 b7 Nb6 Bc4 Qb5 Qd7 Rd8 Ne2 Kf3 Qe8 e4 Qe1 Ba5 B8e6 Nc8 Bb4 Rd7 Bg8 e3+ Kc1 d2+ Kc2 d1R Kb3 d3 Nbc3 d2 Bh7 Rf7 Ra8 Rd7 b8N Rf7 Nc6 Rad7 Ra6 Rd8 Rg1 h1N Rg4 h2 Rh4 Nhg3 Ne7 h1R Rc6 Rg1 Rd6 Nh6 Nf5 Rg2 Nc1 e2 Ng7 Nhf5 Nd3 Rg1 Bh3 Rdd7 Bg4+ Kg2 f3 Rd8 Nf2 Rdd7 Nh3 Kh1 Qf1 e1Q Qfe2 Nfe7 Bge6 Nef5 Bed5 Rg2 Q2e7 Qe4 Bb7 Qd4 Ba6 Qdc5 Rc1 a1N+ Kb2 Nb3 Ra1 Qd4 Kc2 Qdc5 Kd3 Rd8 Ba3 Qcb4 Ra2 Nf1 Ke4 Rg4 Rd5 N1g3+ Ke5 Ra1 Ke6 d1N Rad2 Ra2 R2d4 Rd2 Re5 Rd3 Rd6 Rd5 Rb6 R5d7 Rd6 Bb6 Red5 Bf2 Re5 Be1 Rc5 Qb6 Ra5 Q6b5 Rd4 Nc1 Qg5 Qb1 Bf8 Q1b4 Qge7 Nb3 Rd6 Rf6+
nn3B1k/q2q2N1/2B1b2n/3qRn1p/Q5q1/1R1B1N1P/rnR1Q2K/BQ2b3 w - - 0 1 legal: proof: f4 c5 g4 e5 a4 b5 axb5 a5 d4 cxd4 Bh3 f5 Bg2 Ra6 Bf1 Rf6 Na3 exf4 Nb1 f3 Qd3 f4 Qd1 Rf5 gxf5 Bc5 Kd2 Bd6 Ke1 Bf8 Kf2 Kf7 e4 h5 c4 g5 b4 Kg7 b6 d5 e5 g4 e6 a4 e7 d3 e8Q d4 c5 a3 c6 a2 b5 d2 h3 d3 f6+ Kh7 c7 Qd5 b7 Nh6 f7 Bb4 f8B Be6 Qa4 d1Q c8B d2 Ne2 g3+ Kg1 g2 b6 f2+ Kh2 f3 Ng3 Rg8 Qe7+ Kh8 Bd7 Ba5 Bd3 f1N+ Kg1 Ne3+ Kh2 f2 Nf5 Bb4 Ng7 Nef5 Bc6 Qg4 Rf1 d1N Nd2 Nb2 Nf3 Be1 Bf4 g1N Be5 Ne2 Rc1 a1Q Rc2 Nf4 Rg1 f1Q Bc3 Bd7 Qe2 Ne6 Bf6 Nc7 Bd4 Qh4 Rg5 Na8 Bf6 Be6 Bc3 Nd4 Re5 Ndf5 Bd4 Qg4 Bc3 Nd7 b8Q Qd1 b7 Qf2+ Kh1 Qa7 Kh2 Nc4 Ba1 Nb2 Qe8 Qd2 b8R Qd1 Rb3 Nb8 Qg6 Qdd7 Ba6 Q1d6 Bd3 Qd5 Bc5 Re8 Bf8 Rc8 Qg5 Rc7 Qc1 Rb7 Qb1 Rb4 Qa5 Ra4 Qb5 Ra3 Qa4 Ra2
R3r3/3b4/1p3R1Q/3qQ1BR/NkNQ3b/qPR1bNb1/3nKbB1/1q2qr2 w - - 0 1 legal: proof: f4 d5 g4 h5 a4 hxg4 c4 e5 cxd5 exf4 a5 Nd7 a6 b6 Nc3 Nc5 Nb1 Nb7 axb7 Rh3 Qc2 Rh4 Qd1 Rh8 b8R Kd7 e4 Kd6 d4 c5 h4 a5 h5 f5 h6 g5 b3 g3 h7 c4 Qd2 f3 Qg2 f2+ Kd1 f4 Na3 c3 Bb5 f1Q+ Kc2 g4 Ba4 f3 Ra2 f2 Bc6 a4 Qh3 g2 Nf3 g1B Qh6+ Nf6 Rh5 g3 Bg5 Qa1 Kd3 c2 Ke2 c1Q Rc2 g2 Rc3 Bd7 Nb1 Ra5 Ra8 a3 Bb7 Rg8 h8Q a2 Bc6 Be7 e5+ Kc7 e6 Kd6 Q8g7 Ne4 Nbd2 Bf6 e7 Re8 Qgh8 Qab1 Bb7 a1B Nc4+ Kc7 Nb2+ Kd6 Na4 Nd2 Bc6 Qa3 Q8g7 Rf8 e8R Rf7 Rf8 Bh2 Qgh8 g1B Bb7 Bg3 Bc6 Ke7 d6+ Ke6 Q8g7 Re5+ Be4 Bb2 Qgh8 Bc1 Q8g7 Bc6 d7 Kd6 d5 Re8 Qgh8 Qb8 d8N Bd7 Nc6 Qb7 Na5 Qc6 Nb2 Qb7 Nac4+ Kc5 d6 Qd5 Q8g7 Kb4 Na4 Be7 Qe5 Rf5 Bf4 Beh4 Bg5 Rf6 Rf7 Rf5 Rf6 Rf4 Ne1 Rf5 Bg2 f1Q+ Kd1 Qf4 Ke2 B1f2 Nf3 Bb2 Rc1 Bbd4 Rc2 Bde3 Rc3 Bc6 d7 Bb5 d8Q Bd7 Ncb2 Qfc4+ Rd3 Qcc1 Nc4 Bc5 Rc3 Bfe3 Nh2 Rf1 Nf3 Bef2 Re6 Bce3 Rf6 Bb5 Qd7 Bc6 Qg4 Bd7 Qgd4 Qe1+
2Q1Bn2/4pNk1/b2bP2R/1n1r2qb/NBb1B3/1Q3n2/R1K2Nb1/1R1nbR2 w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kf7 e4 d5 c4 h5 f4 a4 b4 h4 c5 a3 g6+ Kg7 e5 a2 b6 g2 c6 d3 b7 d4 c7 g3 b5 h3 f5 h2 b6 Nh6 e6 Qd5 Qf3 Nf7 Qf2 Nd7 b8R Rh5 b7 Nd6 Qe2 Nb5 Nh3 g1B Bg2 Bf2 Be4 g2 Qe3 g1N Ba3 Nf3+ Kd1 d2 Kc2 Be1 Nc3 Qe5 Nf2 Qf4 Na4 Qg5 Rf1 h1B Bb4 Bg2 Qb3 d1B+ Kb2 d3 f6+ Kg8 g7 d2 Rh1 Be2 Kc2 Bef1 Rb1 Be2 Ra8 Bc4 b8N Ba6 c8Q d1B+ Kb2 a1N Nc6 Nh4 Nd8 Nc2 Nf7 Ne3 Rh3 Bde2 Kc1 Nd1+ Kc2 Nf3 Ra7 Qf5 Rh2 Kh7 g8B+ Kg6 Rh3 Bh6 Rh1 Bf4 Rf1 Rg5 Bh7+ Kh5 Bg6+ Kh4 Ne5 Bb7 f7 Nd2 f8R Bh5 Qb2 Nf3 Rf6 Nf8 Nb6 Qg4 Ra4 Ba6 Be8 Rf5 Ra2 Kg5 Rh6 Qh4 Rh7 Kf6 Rh6+ Kg7 Qb3 Qg5 Nf7 Rd5 Na4 Bd6
2K1bR1q/2Nr1NQn/5q2/1bBQB2B/1r2P1RN/p1p3R1/2B1kn2/n3r1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 c5 g4 a5 b6 h5 b5 a4 e4+ Kb4 b7 c4 g5 a3 b6 f3 g6 f4 g7 h3 d6 h2 d7 f2 Ke6 f3 d5 h4 d6 h3 Be3 Nf6 g8B Rh7 Be2 f1Q Qd4 f2 Nc3 Rf7 Bh5 Na6 b8B Nh7 b7 Qh4 Bc7 Rb8 Nf3 Qd8 Rg1 h1N Rc1 h2 Nd5+ Kb5 Rb1+ Nb4 Nh4 c3 Qg7 Kc4 Bc5 Kd3 Rg4 Ke2 Rd1 Nc2 Rd3 Na1 Rdg3 Ra8 b8Q Ra4 Qb7 Rb4 Bb8 Qh3 Nc7 f1B Qc6 Nf2 Qd5 Rf3 Bgf7 h1R Be8 Bb7 Bef7 Qg5 d8R Qf6+ Kd7 Bc6+ Kc8 Be8 d7 Rd3 Bg8 Bd6 Be6 Be5 Bef7 Bd4 Be6 Bg6 Rf8 Be8 d8N Rd1 Nf7 Be3 Qf5 Rd7 Qd5 Qh2 Qb7 Ng5 Ng6 Qh4 Na8 Ke1 Be5 Nd1 Nc7 Bb5 Bb3 Ke2 Bc2 Re1 Qd5 Bf2 Ngh8 Bg1 Bg6 Qh7 Bh5 Nf2 Ng6 Qh8 Nh4 Nh7
1QNK1R2/R1rnN3/qb5B/2b2Q2/3kpq1n/1Qr3Qq/1b1BP1p1/3N1B1n w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 Kf7 Kd3 Ke6 Ke4 a5 b4 h5 c4 a4 f4 d3 g5 d6 g6 d2 g7 a3 b6 a2 b5 h4 c5 h3 c6 h2 c7 Rh7 c8N Nh6 b7 Nd7 b8Q Qc7 b6 Nf5 b7 Nh4 Nf3 g1B Ne5 g2 Nc3 Ra3 Ng6 Bb6 Qc2 d1Q g8Q+ Rf7 Qd3 Qb3 f5+ Kf6 Qd5 e5 Nd1 Qh3 Bd2 Rc3 Nge7 Qc6 Qg3 Qc7 Rg1 h1N Qdd3 Rg7 Kd5 e4 Qb5 Rh7 Qb3 Rf7 Qa8 Rg7 b8Q Qa7 Qc6 Qa6 Qc5 Rf7 Kc6 d5 Kd6 d4 Qa5 d3 Qad5 Bc5+ Kc7 Bh6 Kd8 Bhe3 Rb1 a1B Rb2 Qc6 Ra2 Bb2 Ra7 Qd6 Q3b4 Qf4 Qbb3 Bd6 Qdb5 Bec5 Qa5 Ke5 f6 Kd4 Qab5 Rg7 f7 Be5 f8B Bc7+ Ke8 Rf7 Bh6 B7b6 Qa5 Rf6 Qab5 Rc6 Qa5 Rc7 Kd8 Bd6 Qf5 Bdc5 Bc1 Nf2 Rh1 d2 Ne3 d1Q Bd2 Qa1 Nd1 Qa6 Rh2 Qhg4 Rh3 Nh1 Rh2 Ng6 Rh4 Qgf3 Rg4 Nh4 Rg8 Q3g4 Rf8 Qh3
3q1kn1/qrQ1b2q/1R1n4/rBN1b3/R2P1NB1/1p2K2b/rpNB1R2/2R2Q2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 f4 c5 g4 h5 d4 b5 a4 e4 g5 c4 d6 h3 a5 b3 a6 h2 a7 b4 d7+ Ke7 g6 h4 g7 h3 Na3 c3 Bd2 b2 Rb1 e3 Nc2 Rh5 f6+ Kf7 f5 b3 Rc1 Nc6 Kd3 e2 Ke3 e1Q+ Ne2 Qh4 Nf4 Ne5 Bb5 Be7 Qf1 Rg5 Rg1 h1Q Rg4 Rb8 a8R h2 Ra4 Qb7 Rg1 Rh5 Rg6 h1R Rh6 Qa7 Rg6 Qdc7 d8Q Rb7 Qd7 Qd8 Qc7 Nh6 g8B+ Kf8 Be6 Nef7 Bed7 Nd6 f7 Ng8 Be6 Rg5 Rf6 Qh7 Rh6 Kg7 f8N Rhh5 Nd7 Rg1 Ne1 c2 Nc5 Kf8 f6 Rg7 f7 Rg1 Rca1 c1B Nc2 Rgg5 Bg4 Rd5 Bd1 Bh3 Bg4 Rhf5 Na6 Rc5 Rb1 Rc6 Nc5 Ra6 Rf6 Ne8 Rb6 Nd6 Rc4 Ra2 Ra4 Kg7 f8R Rh5 Rf6 Rd5 Re6 Kf8 Rf6+ Qf7 Nfd3 Ne4 Ke2 Ng5 Be8 Qdb8 Ne4 Rd8 Be3 Rd5 Rf2 Ra5 Bb5 Qd8 Nec5 Ne4 Ra1 Bd2 Rc1 Nd6 Bg5 Bf4 Kf3 Nf5 Ke2 Bh2 Bd2 Be5 Nf4 Nd6 Ke3 Qh7
rr5b/qQqB1Q2/BR2K3/n2b4/QP2nN1R/BBN2k1r/2bq1pp1/3R4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 a5 h4 g5 e4+ f3 b4 f5 c5 d3 c6 a4 e5 a3 b6 f4 e6 d2 b7 a2 e7 Nf6+ Ke5 d5 e8B d4 h6 d3 h7 Bd7 c7 Bg7 c8B Nc6+ Kd6 Na5 Ne2 f2 b8Q f3 Ba6 Bc6+ Ke6 Qc7 h5 Ne4 Qa4 d1B h6 d2 Bd7 Bc2 Ba3 d1Q Nf4 Qd2 Bfc4 f1R Bb3 f2 Rh4+ Kf3 Qb7 g4 Nc3 g3 Rd1 Rhb8 h8Q a1Q h7 g2 Qe8 Rh1 h8R Rh3 Qf7 Bd4 R8h5 Bh8 Rb5 Qa2 Rb6 Qa1 Na2 Qad4 Nc3 Q4e3 Rb5 Qa7 Rb6 Bd5+
8/n1Q1q3/B2rbbqR/1n1B1b1p/Q1r2B2/2R3p1/KRrQNP1k/N2Q1n2 w - - 0 1 illegal: No proof kernel
1B1B2B1/7K/R1b2r2/q1n1bp2/k1n2RP1/q2pqN2/r1N1Q1Nr/B1nQ2R1 w - - 0 1 illegal: No possible last move, all moves rejected
n1k5/1n3n2/B1q1b2K/1r1BP1NR/Qbp1p3/1b2r2N/2RQ1Q1q/B1NrB3 w - - 0 1 illegal: No proof kernel
r1b2q2/1N3b1R/B2b4/1q1RP2Q/pk1B2R1/N2K1n1Q/B1rp1B1n/nN1q4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 a5 c4 f5 h4 g5 b6 a4 b5 Kc5 h6 d5 h5 g4 b7 f3 b6 f2 h7 g3 h6 g2 Qh5 d3 Ne2 g1Q Nec3 f4 Nb5 f3 N5a3 Kb4 c5 d4 c6 Qd7 c7 Nc6 b8R Qg2 b7 Na5 e5 Qdg7 Bb2 Nf6 Ra2 Rg8 h8Q Ng4 h7 Nh2 Rg1 Qh3 Rg4 Bd6 Bg2 f1B Ba1 f2 Bd5 Bd7 Rd8 Bc8 b8B Qf8 Ba7 Bg2 Bb3 Bd5 Rb2 Qf1 Ba2+ Bb3 Rc2 Bf7 Rc6 Bd7 c8B Rg7 Bb7 Bc8 Ba6 Rg5 Rc7 Rg6 Rf4 Rg2 Rg4 Qe2+ Kc1 d2+ Kc2 f1N Re7 Qd1+ Kd3 Nf3 Red7 N1h2 Rc7 Bc5 Rd5 Nb3 Bb6 Bd6 Qh3 Qh6 Qe8 Rf2 h8N Qf8 Bb2 Na1 Ba7 Bg8 Rh7 Bf7 Bb6 Qc1 Ba7 Qc5 Bb6 Bfe6 Nf7 Rg2 Nd8 Bf7 Nb7 d1Q+ Ke4 d3 Bd4 Qb5 Bf2 Bg8 Qeh5 Bf7 Bfd4 Rc2 Bf2 d2 Bbd4 Qa5 Kd3 Qb5+
q1Q2R2/Bn2NQQ1/6b1/1p2q1R1/nr3rpb/B2k2n1/K1b1RPN1/4rBQ1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 g3 Kd2 Kd7 Kc2 Kd6 Kb3 c5 a4 b5 h4 g5 a5 e5 f6 e4 h5 c4+ Ka2 e3 f7 e2 h6 e1Q h7 g4 Bh3 c3 a6 g2 a7 c2 Nc3 Qe5 Ba3 c1R Nf3 g1N Nh4 Ne2 Qg1 Nh6 Bf1 Bf5 Ng2 Ng3 Rh5 Rg8 Rb1 Re1 Rb2 Be7 f8Q Na6 Re2 Bg6 Qf5 Rc8 a8R Rc4 h8Q Rf8 Qg7 Bh4 Rg5 Nc5 Rb8 Rf6 Qf3 Qa5 Rf8 Nf7 Qf5 Qa8 Qe6+ Kc7 d6+ Kb6 d7+ Nd6 d5 Na4 d8B+ Kc5 Qef7 Kd4 Bb6+ Kd3 Ba7 Nb7 d6 Rff4 d7 Rce4 d8Q+ Rd4 Nd5 Rc4 Bc1 b3+ Ka3 b2 Qc8 b1B Ne7 Bc2 Ka2 Rcd4 Ba3 Rb4
N1r1kn2/1B3qR1/4N3/1p1p4/R1N1qRnr/1b2nbPK/2r2Q1B/b1QB3B w - - 0 1 illegal: No possible last move, all moves rejected
3Nr3/N1Bq1n1R/3B1p1K/1p2QR1N/3b1nrk/1n3R2/2R1rPq1/B3b1Qb w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 b4 c6 e3 Bg7 b6 Ne7 b5 Ng8 b7 Bh6 b6 Bf8 Bb5 cxb5 Kd2 Ke7 g4 d5 c4 h5 e6 Kf6 e7 Kg5 e8R a5 e4 h3 Ke3 a4 c5 a3 e5 h4 e6 h2 e7 a2 c6 h3 c7 Kh4 Kf4 d4 g5 d3 g6 d2 g7 Qd5 Ne2 Qg2 Qg1 d1Q Na3 Qc2 Bb2 Qf1 Nc4 Qh7 Rc1 a1B Na5 Nc6 b8B Nd4 b7 Nb3 Nc6 Nh6 g8R Qg2 Nd8 Ra2 Ng3 f6 Rc2 Bg4 c8N Nf7 Bc7 Bf3 b8B Bb7 Bbe5 Bd4 Nh5 Be4 Rg5 Bh6 Rc6 Re2 Na7 Bd5 Rg8 Bf3 Rg6 Re8 Kf5 Bd5 Rg3 Bd2 Rc2 Be1 Rf3 Qg7 Rh6 Bb7 Rh7 Bc6 Qf1 Bb7 Rg1 h1R Bcd6 h2 Bbc7 Bb4 Qc1 Bc6 Re1 Rg1 Rd1 h1N Rdd2 Bb2 Rd5 Bd4 Qf1 Be1 Rdc5 Be3 Ba1 Bd4 Re5 Rf8 e8Q Ng3+ Kf4 Bd5 Rf5 Rg8 Qe5 Re8 Ba3 Ne4 Bad6 Nec5 Rg5 Ne6+ Kf5 Qf8 Kg6 Qe7 Rcc3 Qd7 Rc2 Nf4+ Kg7 Qg3 Qg2 Qgh3 Qh1 Rg4 Qg1 Ng6 Rgf5 Be4 Rg3 Bh1 Rd3 Qg2 Rdf3 Nfh8+ Kh6 Nf4 Qe3 Rg5 Qe4 Rg4 Qe5 Nf7+
2RbB1q1/1R3NN1/1BnP1Q2/pp1brBB1/4b1N1/1k1qn2R/4qQ1K/3r2n1 w - - 0 1 illegal: No proof kernel
5R2/Bn2Q2r/2p1Q2p/QN6/1b2qBNP/2B1rb2/2rn2NR/Nn1kq1Kb w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 g5 e3 g4 Be2 Be7 Bf3 gxf3 Qc2 Bd6 Qd1 Bf8 Kf2 Ke7 b4 Kd6 g4 Ke5 d4+ Ke4 h4 a5 d6 f5 d5 c6 d7 a4 d6 a3 g5 h6 g6 a2 g7 Qb6 d8Q Qa5 b6 Ra6 d7 Bb7 b5 Ne7 g8N Nd5 Nd2+ Kd3 e4 Qb4 e5 Nc3 e6 Rh7 e7 Ra3 e8N Bc8 b7 Na6 b8B Nc5 Bb2 Nb7 Qe1 Kc2 Ne2 Qa4 Kf1 f2 Rh2 Qb4 Kg2 f1R Ba7 Rf2+ Kg1 f3 Qa5 f4 d8Q Bg4 Nb3 Bc5 Rb1 a1Q Ngf6 Qc4 Qd5 Bb4 Nd6 Bh5 Rd1 Qc1 Qf7 Nb1 Qe7 Qe3 Rd5 Bg4 Rf5 Qd5 Qc3+ Kd1 Qce5 Qde4 Na1 Qd2 Q5e6 Re3 Bc3 Bh5 Nd4 Bg4 Ndc2 Rg2+ Kh1 f2 Ne1 f1B b6 f3 Rh5 Nd8 b7 Be2 b8B Nb7 Nb5 Bf1 Nd3 Qe1 Nf4 Rc2 Rg5 Bh5 Rg8 Bg4 Rf8 Bh5 Rh3 Bg2+ Kh2 Bh1+ Ng2 f2 Bc7 f1N+ Kg1 Nd8 Bf4 Nb7 Rh2 Bf3 Ng4 Nfd2+
Q2N3b/2r1qN2/qP3N2/K4BR1/RnQpBRpk/r1r2bqb/3B3N/1n6 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 b4 Kf6 h4 a5 c4 g5 f4 e5 b6 d5 b5 g3 b7 e4 h5 g2 c5 g4 b6 a4 h6 a3 c6 d3 Kc3 a2 c7 e3 h7 d2 Qb3 d1B Bd3 e2 Nd2 e1Q Rh5 Qd6 Be4 Ra3 Rg5 Nh6 Nf3 g1R Nh2 Na6 b8Q Bf3 Qa8 Bb7 c8B d4+ Kc4 Qe6+ Kb5 Qe7 Qc4 Ng8 Be6 Rc3 Ka5 Rg3 Bc8 Bg7 Bd7 Nh6 Bc8 Re8 h8N Nb4 Nf7 Bh8 Bd7 Rg8 Be6 Rg6 Bc8 Ng8 Bd7 Kg7 f6+ Kh7 f5 Rg7 Bc2 Bg2 Ne4 Bh3 Bd2 Rgd3 Be6 Qg3 Nd8 Kh6 f7 Qd7 f8N Ne7 f6 Ned5 f7 Nc7 Nc6 Rb3 Ne5 Nb5 Ka4 Rdc3 Bd5 Rh7 Ne6 Na3+ Bc6 Rg7 f8R Nb1 Nd8 Qd6 Rf1 Rc7 Nf6 Qe7 Bd7 Bh1 Rf4 Bf3 Be4 Na3 Rc1 a1Q Bdf5 Qa2 Ra1 Nb1+ Kb5 Qa7 Ra4 Ra3 Nd5 Qb7 Ka5 Qc8 Rg6+ Kh5 Nf6+ Kh4 Nef7 Qb7 Rg5 Qa6+
1R1B1R2/1N1Q4/p1rr1QPr/3q1bQ1/RQn2n2/2Kqbq2/1NBNp3/2n4k w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg6 d4 c5 Kd2 h5 b4 e5 g5 Kf5 b6 e3+ Kc3 Ke4 f5 c4 b7 a6 b5 h3 f6 h2 g6 h4 f7 e2 d6 e1R b6 h3 d7 Nc6 b8R Bc5 f8Q Na5 b7 Rh6 d5 Be3 d6 Ne7 Ne2 Nd5+ Kc2 c3 Rg1 h1Q Ra4+ Nc4 Nf4 h2 Qf6 Qf3 Nd3 h1Q Nb2 Nf4 Qg5 Qg8 d8Q Bf5 d7 Qd5 Qdf6 Re2+ Kb3 c2 d8N Rd2 Kc3 Rd4 Bd2 c1N Be1 Rd2 Bh4 Qhg2 Be2 Qh1 Rf1 Ra7 Ra8 Rd4 b8Q Rc7 Nb7 Rc6 Qd2 Qg4 Qc8 Ng2 Bd1 Bg1 Qd7 Qe6 Qfe7 Rdd6 Bb3 Qd5 Qdd8 Be6 Qed7 Qh5 Rf8 Bf5 Kc2 Nf4 Q2a5 Kf3+ Kc3 e4 Rb8 e3 Qb4 e2 Qge7 Kg2 Bc2 Be3 Nd2 Kg1 Qf7 Qhe4 Q8e7 Qhf3 Qe5 Be6 Bd8 Kh1 Qg5 Bf5 Qff6 Qed3+
N2Qb1Nq/1QRRb2p/6B1/1r1N1P1Q/2n1qB1K/1b1p1rB1/qk4Bn/1r6 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 b4 Kf6 g4 Ke5 f4+ Ke4 Kf2 d5 g5 a5 f6 e5 b6 h3 Kg3 h2 b7 a4 f7 d3 c5 Kd4 c6 d2 g6 e4 g7 a3 c7 e3 b5 a2 b6 e2 Nh3 e1R Ng5 Ra4 Kh4 Nh6 g8N Ra5 Qh5 d1B Bg2 Rb5 Nc3 Be7 f8Q Nd7 b8Q Ne5 b7 Bd7 c8B Be8 Bf5 Nc4 Bg6 Ng4 f5 Bb3 Qa8 Re3 b8B Rf3 Bg3 Qb8 Rb1 a1Q Bcf4 Qa2 Rhc1 Qe5 Qb7 h1Q+ Bh2 Qhe1+ Bhg3 Nh2 Qf6 Qe4 Ne6+ Kd3 Nc7 d4 Na8 Qb8 Rd1+ Kc2 Rbc1+ Kb2 Nd5 Qbe5 Nh6 Rf8 Ng8 Rf7 Qfg5 Qh8 Rc3 Nd2 Rc7 Nc4 Rd7 d3 Rc1 Nd2 Rcc7 Rf6 Nab6 Rc6 Na8 Rc1 Ngf6 Nc4 Ng8 Bb4 Qe7 Rb1 Qd8 Be7+
kr1q1q2/1N1n3p/2P1p1N1/B2R1B1q/2NbRR2/Q2r2Q1/bBB3r1/1nb3K1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 a5 f4 d5 Kf2 Kd7 g4 Kc7 b4 Kb7 c5 h3 b6 a4 g5 d3 c6+ Ka6 g6 h2 b7 Ka7 g7 d2 b5 a3 f6 d4 f5 a2 f7 d3 f6 Qd7 b6+ Ka6 Qb3 d1Q Bh3 d2 Nf3 Qc2 Ne5 d1Q+ Nd2 Qb2 Nd3 Qb1 Re1 h1R Nc4 Qd8 Re4 Be6 Bf5 Nd7 b8Q Rh3 b7 Qh5 Qg3 Ka7 Kg1 Rb8 Nc5 Rh2 Qbf3 Qb4 Bb2 Rf2 Rd1 a1B Rd5 Qa3 Bc3 Bb2 Ba5 Bd4 Qb3 Nh6 g8B Ng4 Qa4 Bh6 f8N Bc1 f7 Nh2 Ng6 Nf1 f8R Nd2 Qab3 Qb4 Qa3 Nb1 Rf7 Qbb6 Rf6 Qf8 Rf7 Rd8 b8B+ Ka8 Be5 Rb8 Rf6 Qbd8 Bf7 Rb3 Nb7 Rd3 Be8 Bc5 Bb2 Bg8 Bf7 Bd4 B7e6 Bf7 Bh3 Bg8 Rff4 Bf7 Bef5 Rg8 Rb5 Bd5 Bhg4 e6 Bd1 Rh8 Bc2 Rg8 Nd2 Ba2 Nc4 Qde8 Rb6 Qf6 Nc5 Qee7 Rb7 Rb8 Rb5 Qef8 Nb7 Q6d8 Rd5 Rg2+
1QR1b3/2brRqp1/q3NB2/1nRp2n1/b3Pr1k/BB2n2N/3rB1K1/4N2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 c4 Kf6 e4 Kg5 h4+ Kh6 b4 a5 b6 f5 b7 a4 c5 d3 b5 a3 b6 a2 c6 d2 c7 f3 Na3 f4 Nc2 Nc6 b8B Nf6 b7 Bd6 Nh3 Qe7 Be2 Na7 Bb2 Nh7 Bf6 Qf8 Rg1 Rg8 Rg5 Qf7 Qh1 d1B Ne1 Nb5 Kf1 f2 Kg2 f1R Re5 Na3 Rc1 a1Q Re7 Rd8 Ba7 Be5 b8Q Nb5 Bc5 Ra7 Rc3 Qa6 Ba3 d6 Rc5 Bd7 c8B Ng5 Bb7 Ba4 Bd5 Bc3 Bb3 f3+ Kh2 f2 Kg3 Ba5 Kg2 Kh7 h6 Kg6 h7 Rc7 h8R d5 Rc1 Rc2 Rg8 Kh6 h5 Rd2 Rc5 Bc7 Rge8 Bc6 Rg8 Rd6 Rd8 Be8 Rc8 Kh7 h6 Kg6 h7 Rd7 h8N+ Kh6 Bec4 Kh5 Ng6 Kg4 Ngf4 Kh4 Nc2 Rc1 Ne6 f1N+ Be2 Ne3+ Kf2 Rg1 Ne1 Rg3 Nd8 Rg4 Ne6 Rf4+ Kg1 Nc4 Kg2 Ne3+
1NQrrn1Q/kn1bqqpN/1NR3Q1/2P3b1/Bn1QKB2/6q1/1pR1R3/5b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 d5 Kf3 Kd7 a4 Kc7 c4 Kb6 h4 e5 h6 d3 f6 d4 h5 b3 a5+ Ka7 a6 b5 c5 b4 h7 b2 h6 b3 f7 d2 Ne2 d3 Rh2 Qa5 Ke4 Nd7 f4 Qb4+ Nd4 Qa3 f5 Be7 f8Q Bg5 f6 Ne7 f7 Nf5 Nc3 b1Q Qd6 b2 f8N Qba2 Qg6 Qf7 Na4 Rg8 Qg4 d1N h8Q d2 h7 Nde3 Re2 d1B Nb6 Nc2 Bf4 Qg3 Rc1 Nb4 Rc3 Ba4 Rcc2 Bb5 Bh3 Ne7 Qh4 Nec6 Be6 Na5 Bb3 Nb7 Ba4 Nb8 Qg4 Bcd7 Qh4 N8c6 Qg4 Re8 Qh4 Ncd8 Qg4 Kb8 Qh4 Ne6 a7+ Kc7 a8R Ba6 Re3 Bf1 Ra6 Kb8 Ree2 Rd8 Na8 Re8 Rc6 Ka7 Nb6 Bc8 Nfd7 Nf8 Nb8 Bd7 Nf3 Rd8 Ke3 e4 Kd4 e3 Ke4 Bh6 Qhf6 Bg5 Qd4 Bf6 Ng5 Be7 Rf2 e2 Rg2 e1Q+ Rge2 Ne6 Bc7 Rgf8 Bf4 Rfe8 Qg8 Nf8 h8Q Qef2 Nh7 Bg5+ Be5 Qe7 Q8e6 Qff7 Qef5 Be6 Qh3 Bc4 Qc8 Be6 Bf4 Bd7+
7R/KNQ3pN/2NpBq2/r1rN4/1q1Q2bR/n1BQR3/P1nb3n/1b2r2k w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 b5 c4 d3 f4 d2 f6 b3 f7 b4 h6 b2 h5 b3 h7 Nf6 h6 Ra4 f5 Ne8 f6 Ra3 Ne2 Kf3 Nd4+ Kg3 Bh3 Nc6 Nc3 b1N Bb2 e5+ Kb5 d6 c5 Be7 f8Q e4 f7 Nb4 c6 e3 c7 e2 Kb6 e1Q Nc6 Bg5 Rh2 Rg8 h8N Nf6 h7 Ra5 Nd5 Rc5 Ka7 Ng4 Rh1 Be6 c8Q Na3 Qc7 Bh6 Qb1 d1R Qd3+ Be3 Qe8 Qf6 f8N Bd7 Bd4 b2 Nf7 Nbc2 h8R Qb4 Qe5+ Kf2 Rh2+ Kg1 Bc3 Bd2 Nh7 Rb8 Nfd8 Rbb5 Nb7 Be6 Rc1 b1B Qee4 Rf1 Re1 Bf5 Ree2 Re1 Re3 Bd7 Qed4 Be6 Rf2 Kh1 Rf4 Nh2 Rh4 Bc8 Be6 Bd7 Bf7 Bg4 Be6 Ra5+
1KnR3N/2q1Qp2/RnQ3Q1/N2BrpnB/1b2P1b1/q7/1kb2BQ1/rN5r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e6 f5 exf5 cxd5 Bg7 Nc3 Bh6 Nb1 Bf8 Kf2 Ke7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 a5 e4 h5 g4 c5 g5 h3 g6 h4 g7 a4 b6 c4 d6 c3 d5 c2 b7 Kb3 d7 h2 d6 a3 Nf3 h3 Qd5+ Kb4 Qc6 Kb3 Be3 c1R Bc4+ Kc2 b4 a2 b5 Be7 b6 Ra6 Rd1 h1B Nh4 h2 Bf2 Ra8 Ng6 Bg2 Bd5+ Kb2 Rd4 Rh4 Nh8 Qe8 d8N h1N d7 Ra5 Qg6 Rd1 Nc6 Bh3 d8Q Bb4+ Qe7 Be6 Qg2 Rb5 Na5 Bg4 Rd3 Rc5 Kd6 Nd7 b8Q Rg1 b7 Nb6 Qa8 Qd7+ Ke5 Re1 b8Q Rd1 Qc7 Rb5 Qed6 Ne7 g8B Nec8 Bh7 Rc5 Qac6 Re1 Be3+ Nf2 Bg6 Rhh1 Bh5 Rb5 Qe7 Rd1 Qc7d6 Rdg1 Nd2 Nh3 Bf2 Ng5 Nb1 Rf1 Qf6 Rfg1 Qg6 Rd1 Qdc5 Rdf1 Bb3 Bd5 Qe7 Bc4+ Rd5 Bd3 Bc4 Bc2 Bb3 Bc5 Rd6 Bb4+ Bd5 Qa7 Rd8 Qd7 Qcf6 Rd1 Qc6 Rde1 Nb3 Na4 N1d2 Rb8 Bc4 Rd1 Be6 Ra8 Bc4 Nab6 Nb1 Rd6 Bd5 Re6+ Kd4 Bd2 Kc5 Re5 Kb5 Na7+ Ka6 Bb4 Qc7 Nac8+ Kb7 Ra7+ Kb8 Ra6 Qcc6 Ra4 Nc3 Ra5 Rd1 a1Q Rg1 Qa4 Ra1 Ra7 Nb1 Qa6 Ra5 Qd3 Rb5 Ra3 Ra5 Ra1 Ra6 Qc3 Na5 Qb3 Qg8 Qa3 Qgg6 Qc7+
bN4B1/2b2p1R/1n2R2r/kp6/2qQ1n2/2R1Bb1B/n1QR1rNP/r4qKN w - - 0 1 illegal: No possible last move, all moves rejected
3Q1r2/3bqp1R/3k1pQ1/1q1B2P1/1Nqr1KR1/Nbn5/BB4NQ/b2r1n1Q w - - 0 1 legal: proof: f4 d5 a4 g5 c4 b5 cxd5 Bg7 axb5 Bf8 h4 gxh4 f5 Be6 f6 exf6 Rh3 Bf5 Rh1 Bc8 Kf2 Kd7 Ke3 a5 d4 c5 g4 h5 b4 c4 d6 h3 d5 h2 b6 h4 g5 c3 b7 a4 b5 c2 b6 h3 Bb2 c1R Kf4 a3 e4 a2 e5 Ne7 Ne2 Rh5 Na3 Na6 b8Q Nf5 b7 Ne3 Qd3 Re1 Qg6 Rd1 Bg2 Qe7 e6+ Kd8 d7 Nf1 Qa7 Kc7 d8N Nc5 Nc6 Ne4 Nb4 Kd6 Qg1 Bd7 Rc1 a1Q Rc4 Rh7 Rd4 Qa2 b8Q+ Kc5 d6 Qc4 Bf3 Rh4+ Bg4 Ba4 d7 Bb3 d8Q Qb5 Qg2 Qc4 Rg1 h1B Qh2 Bg2 Qh1 h2 Rd2 Bh3 Rd4 Qb7 e7 Qbb5 e8B Be7 Bc6 Bd6+ Kf5 Bg3 Bd5 Be5 Rd3 Bd4 Nf4 Bc3 Ng2 Bd4 Bc1 Ba1 Qg3 Rb8 Bb2 Rc8 Kf4 Rb8 Qe8 Kd6 Rf3 Rd8 Qf2 Rh8 Bge6 Rf8 Rg3 Bf5 Rh3 Bg4 Rh7 Bh3 Bg4 Rd4 Bd1 Bd7 Bc2 Rd1 Bb1 Rd4 Ba2 Rd1 Nh4 Rd4 Rg4 Rd1 Qhf3 h1Q Ng2 Qg1 Q2g3 Qgc5 Qh2 Kc7 Ne3 Be6 Ba8 R8d4 Bd5 Qe7 Qfh1 Kd6 Ng2 Bd7 Qd8 Nc3+
1QQK1kqN/4rpNP/3N4/3nQ1Q1/2qBb1B1/2b1pR1r/2nn3R/3r1qB1 w - - 0 1 illegal: No proof kernel
N3Bq2/4P1k1/2BbR1b1/2Rp1Q2/nr1q3B/2NRQ2p/n2r1NK1/nN1q3r w - - 0 1 illegal: No possible last move, all moves rejected
b7/rN1qpQ1q/bn1Rr2p/1rqB4/7k/NRK1QR1P/3RBn2/4n1BQ w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 f4 b5 axb5 fxe4 g3 g6 f5 Bg7 Bf4 Bh6 Bc1 Bf4 gxf4 Qb6 Ke2 Qc7 Ke1 Qd8 Kd2 Kf7 b4 Kf6 c4 d5 b6 a5 c5 e3+ Kc2 h6 c6 a4 h3 g5 c7 a3 b5 d3+ Kc3 g4 b7 a2 b6 e2 Nf3 e1N Na3 d2 Ng5 g3 Ne6 g2 Nc5 g1Q Rh2 Ra7 Be2 Nc6 b8Q Na5 b7 Qd7 Qb3 d1B Qa8 Qf2 b8R Nc4 Be3 Ba6 c8B Qg1 Rb1 a1R Nb7 Qg7 Rb2 Qh7 Rd2 Qd6 Bg1 Qc5 Bd7 Bc2 Rf2 Be4 Be6 Rb1 Qb6 Rb5 Rd8 Bh1 Rd6 Bg2 Rf3 Bh1 Qbd8 Rb6 Rg3 Rc6 Qb6 d4+ Kb3 d3 Kc3 Qd5 Qe3 Qc5 Rd4 Bg2 Bd5 Re6 Rf3 Kf7 f6 Kg6 f7 Kh5 f8R Kh4 Rf7 Nf6 f5+ Ng4 f6 Rb8 Rf8 Bh1 f7 Bg2 Rd8 Bh1 Rb2 d2 f8Q d1Q Rdd2 Nf2 Qf7 Qa4 Rd6 Qd7 Rb3 Bg2 Na5 Rb5 Nb7 Qe4 Qag8 Qf5 Bc6 Bf1 Qg2 Qd8 Na5 Qd7 Qh1 Bg2 Rg3 Qh7 Ba8 Bgb7 Rf3 Bc8 Bc6 Bcb7 Bd5 Ba8 Nb7 Nb6+
2nqq3/2bp2B1/2N1N3/2BP4/b2rnR2/Q1r1Bn2/1RQRp2q/K1B1krQ1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 b4 gxh4 b6 c6 b7 Bh6 b5 Bg7 b6 Bf8 Bb5 cxb5 d4 Kf7 Kd2 Kf6 Kc3 e5 Kb2 h5 g4 a5 f4 b4 c4 b3 d5 e4 c5 e3 c6 a4 c7 e2 Qd2 h3 Qd3 h4 Nd2 h2 Ndf3 h3 Ng5 Bd6 Ra2 a3+ Ka1 Rh4 Rd2 a2 Ne6 Nc6 b8R Ra3 b7 Nge7 Nf3 Ne5 Rf1 h1Q Nfd4 h2 Nc6 Qe4 Qh3 h1Q g5+ Kf7 f6 Kg6 f7 Kh5 f8B Qh2 g6 Nf3 g7 Qe3 Kb2 a1R f5 Bf4 g8Q Bg3 Qg2 Rd4 f6 Kh4 Bg7 Bd6 Qh1 Kg3 f7 Qe5 f8B Qeh5 Qh7 Qhe8 Qc2 Bf4 Rg1+ Kf2 Rg4 Bd6 Qg2+ Ke1 Rf4 Be5 Ra8 Bd6 b8B Bb7 c8Q Bc7 Ba7 Ba6 Qc5 Bb5 Rb8 Ba4 Qa6 Nc8 Qc2 Qhh5 Bfc5 Qh2 Kc3 b2+ Rb3 b1N+ Kb2 Ng5 Rb8 Rf3 Qg1+ Rf1 Qad3 Nf3 Qa3 Nc3 Rb3 Ne4 Bab6 Ra2+ Kb1 Rb2+ Ka1 Qh1 Rb5 Rb3 Rb4 Rc3 Rb2 Qh2 Ba7 Rdc4 Be3 Rb4 Bac5 Rd4
nN1b2b1/Bk1p1B2/NrRnP1K1/Q1B5/1Q2r1Qr/6Bb/5pN1/2q1qRq1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 Kd3 g5 h4 a5 b4 f3 e4 a4 c4 g4 h6 a3 e5 a2 h7 f4 Ke4 d3 Kf5 g3 h5 f2 c5 g2 b6 f3 c6 d2 b7 Qb6 c7 Qa5 b5 Bc5 h6 Qa7 b6 Ke7 Nc3 Nc6 b8Q Nb4 b7 Nd5 Kg6 Ke8 Nh3 Qa5 Ne4 Ngf6 Nf4 g1Q+ Ng2 Ra6 Bc4 f1B Ba3 f2 Qg4 d1R Rc1 Be7 Nc5 Rb6 Na6 a1Q Bc5 Bd8 Qa8 Rd2 b8N Bb7 c8Q Re2 Qc6 Re3 Qb5 Re4 Qb4 Nc7 Ba2 Bd5 Rc4 Rf8 h8B Qc1 h7 Bg8 Bg7 Rf7 h8B Rf8 Qd5 Na8 Bh6 Rf7 Bf4 Rh7 Bg3 Rh4 Bb3 Qaa1 Qdd2 Qab1 Qa5 Qe1 Qdb4 Qbc1 Rc3 Rc6 Ba7 Rb6 Rc5 Ke7 Bf7 Ne8+ e6 Nd6 Rc4 Rh2 Bd4 Rh4 Ne3 Bh3 Bc5 Bc7 Rc3 Kd8 Ng2 Kc8 Rc2 Kb7 Rc4 Qh2 Rf1 Qg1 Bd4 Bd8 Rc6 Qe2 Bc5 Qee1
nr1b2q1/3p3N/BQNqp1kB/b1K1Qnb1/2NR2R1/1r5N/2RP3q/r5Q1 w - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 axb5 Nh6 c5 Nf7 b6 Nh6 b5 Ng8 c6 Bb7 cxb7 Bg7 Ke2 Bh6 Ke1 Bf8 Ke2 Kf7 Ke3 c5 f4 a5 g4 h5 g5 a4 f5 c4 Kd4 e3 f6 a3 Nh3 e2 Qb3 e1B Bb2 a2 Bc1 e6 Na3 c3 Nf4 c2 Qe3 h3 Qg1 h4 Nc4 h2 Ba3 c1Q Nh3 Ne7 Kc5 Kg6 f7 Bh6 Bd3+ Nf5 f8N+ Kg7 g6 Bg5 Bb4 Ra3 Nh7 Qg8 Rb1 a1B Rb2 Kh6 g7 Kg6 Rc2 Rb3 Bc3 Bf2+ Bd4 Bb2 Be3 Bf6 Bf1 Bd8 Be2 Nc6 b8Q Na7 b7 Nc8 Qe5 Nb6 b8Q Na8 b6 Bg3 b7 Ba5 Qe4 Bgc7 Qe5 Bd8 Qa7 Rc3 b8N Rb3 Nf2 h3 Qb6 Qa1 Nc6 Qc3 Bf4 Qg3 Qga1 Qc3 Rg1 h1R Rg4 h2 Nh3 Qg3 Qad4 Ra1 Qg1 h1Q Bf1 Qf7 g8R+ Qg7 Be3 Qhh2 Rf8 Qg8 Rd4 Nd6 Rff4 Nf5 Rg4 Qf4 Qd5 Qc7 Qe5 Qf7 Nb2 Re8 Ba6 Qg8 Nc4 Be7+ Qd6 Rb8 Bf4 Bf6 Qe5 Bd8 Qe4 Raa3 Be5 Ra1 Bg7 Kh5 Bh6 Kg6 Qe5 Qd6+
3bBNR1/Rrp3K1/1nq2nQ1/4bQRb/3n4/2Prkqpq/5N2/NB3R1B w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 Kf7 Ke3 Kg6 Kd4 Kg5 e4 Kf4 h4 d5 b4 g5 h5 a5 h6 a4 h7 a3 c3 g2 b6 a2 b5 g3 e6 g4 b7 Ba3 e5 Ra7 e7 Bd7 e8B Bd6 b6 Nf6 e6 Ra5 e7 Bb4 Qd3 Rf8 h8R Bc6 Rg8 Nbd7 b8R Ra7 b7 Nb6 Bg6 Be8 Nd2 Qd7 Nb3 Qc6 f3 Bf7 e8B Be7 Rh5 Bd8 Rg5 Qe6 Bh7 Bh5 Qg6 Qc6 Ra8 Rf7 b8Q Rb7 Ra6 Rd7 Qc8 Rd6 Rc1 a1Q Ra7 Qb1 Bc4 Qf5 Na1 Rd7 Rf1 Qfe6 Kd3 d4 Bd5 Rd6 Kc2 Rd7 Nh3+ Ke3 f4 g1B f5 g2 Nf2 Bh2 Be4 g1N Bh1 Rd5 Kb3 d3 Qd7 Ne4 f6 d2 f7 Nf6 f8N Rd3+ Qd5 Qc8 Qdf5 Be5 Kc2 g3 Kb3 d1Q+ Kb4 Qg2 Kc5 Nf3 Kc6 Na8 Kc5 Nd4 Kc4 Ne4 Kd5 Qdf3 Qff7 Qd1 Qh6 Rd2 Bf5 Qa4 Qhg6 Qf3 Qff6 Nd6+ Be4 Qh3 Qff5 Qa6 Kc5 Qa4 Bb1 Ne4+ Kd5 Rd3 Qd6 Qa6 Qdg6 Nc6+ Ke6 Nf6 Kf7 Nd4 Kg7 Qac6 Ra4 Nb6 Ra2 Qfe4 Ra7 Qf3
Nn1bK1b1/2pQ1N2/1BRRpRr1/2rN4/1rBN2P1/n3nBqQ/4b3/q5k1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 b4 h5 b6 a5 g6 c3 Kg5 a4 f4 a3 b5 c2 g7 e3 Kg6 a2 Kf7 h4 b7 h3 b6 e2 f5 e1R f6 h2 Bc4 Ra5 Ne2+ Ke4 d4 Kf3 d5 Kg2 d6 Rhh5 d7 Rag5 Nd4 Rg6 Be3 c1N Nc3 Rhh6 Nd5 Nb3 Rc1 a1Q Qd3 Re2 Rhd1 h1B Rc2 Na6 b8N Nd2 b7 Nb1 Nbc6 Na3 b8N Rh7 Ne5 Rh5 Rdd2 Bb7 Bg1 Kf1 Qh3+ Bg2 Rd3 Re4 Rcc3 Bc6 Bf2 Bb5 Bg1 Qc8 d8Q Qb7 Qd7 Nh6+ Ke8 Nf5 g8B Ne3 f7 e6 Bh7 Be7 f8R+ Rf5 Rf7 Bd8 Rf6 Qb6 Bf2 Qd6 Nf7 Qg3 Rc2 Rgg5 Bg6 Rfe5 Bf5 Rg6 Rcc3 Rf4 Be4 Rh5 Bf3 Rhf5 Nbc6 Nb8 Nb6 Rc5 Na8 Re4 Nb4 Rf4 Be1 Kg1 Nd5 Bf1 Rc2 Be2 Ba5 Ba4 Rcc3 Bc2 Rd2 Rg5 Bb6 Bh7 Rcc2 Bg8 Bb3 Rb5 Rc6 Rg6 Bc4 Rf5 Rc2 Rb4 Rd6 Qf1 Ba6 Qb1 Rcc6 Qa1 Bc4 Re5 Ne7 Ra5 Nd5 Rc5
2B2N1N/1rp2bR1/1P1B1r2/1Kr1BQq1/3qBRQb/1n1Rnnb1/5k1p/6N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kd3 h5 Kc4 a5 e4 f5 b4 h3 g4 a4 e5+ Ke7 d6+ Ke6 b6 f3 g5 h4 b5 a3 g6 f2 b7 h2 b6 f4 d5+ Kf5 d7 Ke4 g7 f3 e6 a2 d6 h3 e7 Ra5 e8Q+ Re5 Ba3 Ke3 Qe6 Na6 b8N Nc5 Bg2 f1R Nc3 f2 Be4 Nf6 g8B Ng4 Nb5 Be7 Qf5 Nb3 Be6 Bh4 Kb4 Qe7 d8R Qg5 d7 Rc5 Nd6 Ne5 Qdg4 Nf3 Nf7 Bg3 Rc1 a1B Rc4 Bf6 Rd4 Re8 Nh8 Bb7 Bb2 Bd5 Rc4 Rf8 Be5 Ra1 Rd4 f1N Rd3+ Kf2 Re8 Qe3 d8B Qg5 Bc8 Ra7 Be7 Rb7 B7d6 Bf7 Nd7 Ne3 Re6 Bd8 Rg6 Be7 Rg7 Bf6 Ne2 Bd8 Ra1 h1Q Ng1 h2 Rc1 Qg2 Rc4 Qf1 Ka4 Qa1+ Kb4 Qd4 Ka4 Re8 Nf8 Re6 Rb4 Qh5 Rc4 Bdh4 Kb4 Qg5 Ka4 Rc6 Kb5 Rf6 Bd5 Qa1 Rf4 Qd4 Be4 Rc5+
Br1RnQ1q/1PB5/qbb1pQ1R/5N2/1QKB3n/1nN4r/1p1q1r1B/1Nk5 w - - 0 1 illegal: No proof kernel
n7/BpB1r1q1/bPQrR1NN/2q2K2/2pb1Rn1/1n1Q4/1kbN2BQ/2q3N1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 h5 g4 e5 a4 h3 f6 h4 a5 h2 a6 h3 a7 b3 d4+ Kb4 f7 c5 g5 b2 d6 Kb3 d5 c4 f5 Na6 d7 Nh6 d6 Bg7 f8N Nc7 g6 Qg5 d8Q Ng4 f6 Bd7 f7 Rh7 Be3 Qe7 Qe8 Rd8 Ra6 Na8 Bg2 Kc2 Nd2 b1N Bb6 Kb2 Bc7 Bc6+ Kf5 e4 d7 e3 Rb6 Bd4 g7 e2 g8N e1Q Nh6 Qg3 Ng6 Qc5+ Qe5 Qc3 f8B Rg7 Bfd6 Re7 Bb8 Qg3 Bdc7 Qc3 Ne2 Qc1 Rf1 h1Q Rf4 h2 Ra6 Qhe1 Ng1 h1B Rb6 Qg3 Ra6 Bf3 Re6 Bc6 b6 Bb5 Qd5 Ba6 Qe5 Rc8 d8Q Qgc3 Qdd5 Rd8 Qde4 Rd6 Qd3 Na3 Qd5 Nc2 Qe5 Na1 Qd5 Q5b4 Qc6 Nb3 Bd8 Nc7 a8Q Qa3 Ba7 Qc5+ Bd5 Bf3 Qb8 Na8 Bc7 Bd1 Qh8 Bc2 Qe5 Bf2 Qe2 Be3 Qf2 Qg7 Qh2 Qb4 Bf3 Bd4 Bg2 Qc5+
r2BQ1R1/1n1B1N2/1R1BrQK1/k2r2q1/3nRrbP/N1bp4/4N1p1/1nr4R w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 g5 Kd3 d5 h4 Kd7 c4 Kc7 b4 Kb6 f4 e5 f6 a5 f5 g3 f7 g2 f6 g4 Ba3 g3 Nh3 g1N Nf4 g2 Qf3 a4 Be2 Bg7 f8R Qe8 f7 Nf6 Rg8 Bg4 f8B Nfd7 Be7 Nc6 Ra2 Qb8 Bd8+ Qc7 Qf1 Nf3 Rb2 Nd2 c5+ Kb7 b6 Ka6 b5+ Ka5 Re8 Rf8 b7 Bh8 b8Q e4+ Kc2 e3 Kd3 Rf7 b6 Qe5 Rb4 Bg7 Rg8 Rf8 Bd1 e2 Bb3 e1R Ne2 Rf4 b7+ Ka6 Rb6+ Ka5 Bc4 Rc1 Bb5 Ra6 Qa8 Bh8 b8R Bf6 Bb2 a3 Ba1 a2 Na3 Nb1 Ba4 Na7 c6 Nb5 c7 Bh8 Bb2 a1R c8N Bg7 Qc6 Ra8 R8b7 Re1 Nd6 Nc5+ Kc2 Bf6 Re7 Nb7 Qe8 Bg7 Nf7 d3+ Kb3 d4 Kc4 d2 Kd3 Bh8 Bc1 d1R+ Bd2+ N5c3 Bd7 Rc1 Be3 Nb5 Bg1 Ra2 Bh2 Rac2 Qf3 Rc5 Qc6 Rd5 Qf6 Qc7 Re4 Qe5 Bg3 N1c3 Kd2 d3 Ke3 Nd4 Bh2 Nb1 Bg3 Rc6 Bh2 Re6 Bg3 Qf5 Bh2 Rc1 Bg3 Rf2 Bd6 Qe5 Bc5 Qf5 Qfe7 Nc6 Bd6 Bc3 Qf6 Qh5 Qfe7 Nd4 Qf6 Nf3 Kf4 Qh8 Qe5 Nd4+ Kg5 Rf4 Qf5 Ree5 Kg6 Re6+ Qf6 Qh5+ Kg7 Qe5 Kg6 Qg5+
1B2nr2/R2RKN2/Bn1Qq1Q1/3b1rBQ/3Pr3/n2N2bR/r1pp4/kr1Q4 w - - 0 1 illegal: No possible last move, all moves rejected
Q1n2BB1/3brrrR/6rN/NkB3Kp/2q1Q2n/1bQr3P/1p3QN1/n4R2 w - - 0 1 illegal: No possible last move, all moves rejected
3B1N2/Q2Bqrbn/N3bb2/2rr1PR1/2bp1R2/k1B1N1B1/3p4/KR1Q1b1n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 Kd7 g4 Kd6 c4 Kc5 Kc2 Kb4 c5 e5 g5 a5 b6 h5 c6 a4 g6 a3 c7 h3 f6 h2 b7 h4 f7 a2 f5 e4 g7 e3 Nc3 e2 Nf3 e1R Nb5 h3 Ne5 Be6 c8Q Ra7 Qd7 Na6 b8B Nc5 Bg5 Nd3 Ng4 Re5 Ne3 Qe7 Rb1 a1B Nc7 Nf6 g8R Bg7 f8N Nf2 Bb5 Nh7 Rf1 Nh1 Rf4 Ra5 b3 Ka3 b4 d3+ Kc1 Bf6 Na6 d2+ Kc2 Bd4 Qa7 Bb2 Bd7 Rc5+ Rc4 Bc3 b5 Ba1 Rg6 Rg8 b6 Rg7 b7 Rf7 Bh4 Bg7 Bg3 Nf2 Ng2 h1B Ne3 h2 Bc7 Bg2 b8B h1B Bd8 Bf1 Rg5 Bf3 Bbc7 Nh1 Ba5 Bc3 Rcg4 B3e2 Rf4 Bd4+ Bc3 Bc4 Qf3 Re4 Qd1 Bdf6 Rb5 d4 Kb1 Ree5 Ka1 Red5 Rb4 Rc6 Rb1 Rcc5
B1r5/N1n1Brbk/R3b3/qrRppN1r/P1BQ1n2/8/r1Q1BK1N/5R1n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 g4 Kg7 f4 b5 g6 e5 g5 h5 c5 d6 c6 h4 c7 d3 Nc3 b3 Nf3 d2+ Kf2 h3 Ba3 b2 Ne4 b1N Qc2 d1R Nh2 b4 Ng3 b3 Be2 b2 Rf1 Bb7 c8N Rd3 Na7 Ne7 f6+ Kg8 g7 Bc8 f5 Na6 f7+ Kh7 f6 Nd2 Bc5 b1R Nf5 Nd5 a4 Rb5 Rac1 Nac7 Ba3 Be6 g8B+ Kg6 Bb4 Bg7 f8Q Nf4 f7 Ra3 Qe8 Rc8 Qd7 Rh7 f8R Ra2 Bc5 Bc4 Bd5 Bb3 Ba8 Be6 Rg8 Rh5 Rf8 Kh7 Rf6 Ne4+ Ke3 Kg8 g6 Ng3 Kf2 Kh8 Qc6 Kg8 Qd5 Rh7 Qd4 Rh5 Ng4 h2 Bb4 h1R Nh2 Bh6 g7 Kh7 Qce4 Rg1 Rc5 Rh1 Qc2 d5 g8B+ Kh8 Bc4 Bg7 Bf7 Kh7 Be8 Bg8 Ra6 Be6 Nf3 R1h4 Nh2 Rg4 Be2 Rg6 Bec6 Rf6 Bd7 Rf7 Be8 Rb7 B8b5 Rbb8 Bbc4 Rb5 Ba5 Ne8 Bb4 Qa5 Rcc6 Nc7 Be7 Qd2 Rc5 Qb4 Bf8 Qa5 Be7 Nh1+
1kB4Q/1r3n1N/K1Q1q1Q1/1npbn2n/2pr1bR1/1N3R1N/1bPB4/1n3R1Q w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 g5 h4 gxh4 Qe2 f5 Qc4 dxc4 exf5 Ba6 Ra5 Bb7 Ra1 Bc8 Ke2 Kd7 b4 e5 f4 h5 g4 a6 d4 h3 b6 h2 b7 c6 f6 Kc7 d5 e4 f7 e3 g5 h4 f5 h3 b5 Qe7 f6 Ra7 g6 Rh4 g7 Nh6 g8Q Be6 Qg6 Rd4 Nd2 Nd7 d6+ Kb8 Nb3 Ne5 d7 Bd5 Bd2 Qe6 Ra4 Bd6 f8N Nhf7 Nh7 Bc7 Bg2 Bd6 Be4 Bc7 Bf5 Bd6 Kd1 e2+ Kc1 e1N Kb2 N1f3 Kc3 Bc7 Kb4 Bd6+ Ka5 c5 d8R+ Qc8 Kb6 a5 Ra3 a4 Rg8 Qe8 Bc8 Qe6 Ra1 a3 Rf1 a2 Rg7 Nh8 f7 a1B f8Q Nhf7 Qe8 Bc3 Qc6 Bb2 Bc3 Nd2 Rf3 Nb1 Bd2 Ra4 Rg8 Rb4 Ka6 Bc7 Ne2 Bd6 Rhf1 h1N Nf4 h2 Nh3 Ng3 Qg5 h1N R3f2 Nd3 Qe8 Be4 Kb6 Nh5 Ka6 N1g3 Qh6 Bg2 Rg4 Ne4 Qg6 Nec3 Qd7 Bc6 Rf6 Bg3 Qd5 Nde5 Qh1 Kc7 b6+ Kd8 b8Q Qd6 R6f2 Bd5 Qb7 Bf4 Rf3 Rb5 Qc6 Qd7 Qcf6+ Qe7 Qh8+ Qe8 b7 Kc7 Ka7 Qe6 b8Q+ Kc6 Ka6 Rb6+ Ka5 Nb5 Qa8+ Kc7 Qa6 Rb7 Qc6+ Kb8 Ka6 Bh2 Qd3 Bg3 Qg6 Bf4
1r6/Rr5Q/1n1RbR1B/np1BPKb1/1n3b2/1B2b1p1/1N1b3N/q1kN1R1Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 fxe5 dxc4 e6 Ke7 Kf2 Kf6 Kg3 Ke5 d4+ Ke4 a4 f5 h4 g5 d5 b5 d6 c5 e3 c3 e7 c2 e8R+ Ne7 a6 c4 a7 c3 h5 Nd7 h6 Rh7 a5 Nb6 d7 Rb8 a6 Rf7 h7 Bh6 Rf8 Ned5 a8B Qf6 d8R Be6 Bd2 c1B h8Q c2 a7 Rg7 Bc6 Rgb7 Rd6 Qd4 Bg2+ Kd3 e4 Nb4 Bf4+ Bd2 e5 c1B Qf3+ Kc2 Rf6 Bc3 Qh7 Be3 Qf1 Bcd2 Nf3 Qb2 Ra4 Qa1 Nh2 Kb2 Bgd5 Kc2 Bb3+ Kb2 Bd1 Kc1 Nc3 Qa3 Kg2 Qa1 Bg3 f4 Bd5 Bg7 Bh4 f3+ Kg3 f2 Ra2 Bh6 B1b3+ Be1 Nd1 B1d2 Kg2 Bf4 a8N Nc8 Qe1 f1N Kf2 Ne3 Nb6 Nc4 Ra7 Na5 Na4 Nb6 Nab2 g3+ Kf3 g2 Ke4 g4 Bg5 g1B Qf1 Bf7 Kf5 g3 Qf3 Bge3 Rf1 Bg8 Qh1 Bf8 Bh6 Be7 Rfe6 Beg5 Rf6 Be6+
1KN1r3/BQ6/1b2rq1b/1pQ1Pkb1/R1r1R1bp/NQ1n2nb/2NBN3/3B4 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 Kd7 Kg3 Ke6 Kf4 f5 a4 h5 e4 b5 g4 c5 d4 h4 a5 b3 a6 c3 a7 b2 g6 c2 g7 c4 d5+ Ke7 e6 Kf6 g5+ Kg6 Ke5 f4 d6 c3 e7 f3 e8Q+ Kh7 d7 f2 Be2 f1R Na3 b1B Bd2 c1B Qb3 c2 Bd1 Rf3 Ne2 Ba6 Re1 Rh3 Qe7 Kg6 Kd6 Rc3 e5 Nf6 g8N Kf5 g6 Bc8 g7 Nh5 Nf6 Nc6 g8N Bh6 Nd5 Rc4 Nb4 Ng3 Qf8+ Qf6+ Kc7 Bg5 d8B Rh6 Qc5 Bd7 Be7 Re8 a8Q Bb2 Qaa7 c1B Qb7 Bd4 Nbc2 Nb4 Bd8 Rg6 Kb8 Nd3 Ra2 Bc8 Bb6 Bg1 Ba7 Bh6 Bb4 Bcg5 Bd2 B1e3 Qce7 Bb6 Qc5 Qf7 Ra1 Rge6 Ra2 Qf6 Ne7+ Kg4 Ra1 Bd7+ Nc8 Kf5 Bc3 Bc6 Bd2 Bf3 Ng1 Bg4 Re4 Ba2 Ne2 Ra4 Qb2 Bd5 Qb3 Rc4 Nb1 Bc6 Ra4 Bd5 Nba3 Bh3 Rd4 Bf3 Re4 Bfg4
q1NR2n1/Q1r2r2/2bR1rp1/BBR3Nn/b3N3/1bQpQ1b1/1N5P/3K1kb1 w - - 0 1 illegal: No possible last move, all moves rejected
1K5b/4nk2/P3n2p/2nbR1BN/n1R1bqR1/QQ3p1N/2nRN3/1rBB2r1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 b5 Kf3 f5 d4 c5 a4 c4 g4 h6 e4 c3 a5 c2 a6 b3 d6 b4 g6 b2 g7 b3 d7+ Ke7 e5 Nc6 e6 Rh7 d5 Ra7 g5 Rh8 g6 Kf6 d6 Bb7 e7 Qa8 d8Q Qb8 e8R+ Nge7 g8R Bg7 Nc3 b1N d7 b2 Nce2 Nc3 Qa5 b1B d8B Na4 Nh3 Qe5 Ra2 Nd4+ Kf2 f3 Bg2 Qb5 Ke3 f2 Kf4 f1N Bf3 Qc4 Qb4 Ba8 Qa3 Bd5 Rg1 Rh7 Rg4 Bh8 g7 Kf7 Ke5 f4 Kd6 Rb7 Qdd3 Rb5 Qdb3 Ne3 Rh4 Qb4+ Kc7 Rb6 Rg4 Rg6 Rh4 Rg1 Rb2 Qc4+ Kb8 Ne6 Bg4 Nc8 Bg5 Ne7 Nc3 Qd4 Bd1 f3 Ne2 Qf6 Rc4 Qf5 Bd2 c1N Rbc2 Nd3 Bc1 Ndc5 Rd2 Nc7 Nc3 Bbe4 Ne2 Ng6 Re5 Ne7 Rc8 Qg4 g8N Qf4 Nf6 Nc2 Rg8 N7e6 Nh5 Rg7 Bf6 R7g3 Rg4 Re1 Bg5 Rgg1 Nc3 Re3 Ne2 Rc3 Qbb4 Rb3 Qb7 Rb2 Qbb3 Rb1
B1R5/k2b1n1R/p1b1q3/1rKR2R1/5NQn/2nPB2Q/2np3B/n1bN1r1Q w - - 0 1 illegal: No proof kernel
1N2B1Qn/B3nnR1/p1rB3p/1N3r2/QPKQrR2/7r/1q3bbk/Q2R1r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kd3 f5 e4 c5 g4 a6 b4 f3 g5 h3 g6 h6 b6 f2 b7 h2 g7 c4+ Kc3 f4 Ne2 f3 Rg1 h1R Na3 Rh3 Be3 Ne7 g8Q Nbc6 Rg7 Ne5 b8B+ Qc7 Ra2 Nf7 Qa1 Bb7 Ba7 Rb8 Bf4+ Ne5 Bg2 f1R Bg3 f2 Nb5+ Kd7 d6 Nf7 e5 Ke6 d7 Kf5 e6 Qe5 Bh1 Bg2 d8R Rb6 Rd2 Rh7 Rd1 Nh8 Rd7 Re1 Rg4 Rg7 Rf4+ Kg5 Rc7 f1R Rb7 Rg6 Rc7 Qg7 Rd7 Rf6 d5 Rf5+ Ned4 Kh5 d6 Re4 Rb7 Qf6 d7 Qg7 d8Q Qf6 Kd2 c3+ Kd3 c2 Nc6 Qb2 Qd4 c1N+ Kc4 Nd3 Nb8 Bg7 Bh2 Bf6 Rd7 Bh4 Rc7 Bf2 Bg3 Neg6 e7 Kg5 e8Q Ne5+ Kc5 Kh5 Rg7 Nef7+ Kc4 Ne7 Qd8 Rbe6 Qda5 Rb6 Bh2 Rff6 Q5a4 Rf5 Rf3 Kh4 Bd6 Rg3 Rf4+ Kh3 Rc1 Kh2 Rd1 Bh3 Bf3 Bg2 Bh5 Rh3 Bg6 Nd8 Be8 Ndf7 Rd2 Rfe1 Rd3 Rf1 Rd1 Rc6+
r5rQ/Q2KRbnP/7R/1B3N1Q/1b1p2qR/bN2bn1R/1n2p2B/1k1N1b2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 b4 e5 h4 g3 f4 d6 c4 g2 h5 e4 h6 a4 b6 a3 h7 a2 b5 g4 c5 e3 b7 g3 b6 d3 c6 d2 c7 Bg7 Nh3 g1N Bb5 g2 Qh5 d1B Nd2 e2 Nb3 Nd7 Kc6 d5 b8R d4 b7 Bf8 Nf2 Nf3 Rh3 g1B Bd2 Bc2 Nd1 Nb6 Rh4 Be6 c8N Ba3 Ne7 Be3 Bc1 Qf8 Re8 Nh6 b8Q Rg8 Qa7 Na4 Kc7 Bd5 Kd7 Qg7 Bd2 Bd3 Ba5 Qg6 Bc7 Nb2 Rc1 a1B Rc3 B3e4 Rd3 Kf7 f6 Nf5 Bd6 Ng7 f5 Nd2 Bh2 Bg2 Rc3 Bf1 Rd3 Bh6 Rdh3 Be3 Rc8 Nf3 Rc6 Nc4 Re6 Bc3 Ree4 Nb2 Re6 Kf8 f7 Qg4 Rh6 Bcb4 Rf6 Ne8 Rh6 Kg7 f8R Bc4 Rff6 Bf7 Re6 Nc4 Ng6 Nb2 Re7 Kf6 Nh8+ Bg6 Nf7 Ng7 Nd6 Qg3 Rf7+ Ke5 Re7+ Kd5 f6+ Qg5 Re8 Bf7 Nf5 Qg3 Re7 Qg4 Ba4 Kc4 Bc6 Kd3 Bb5+ Bc4 f7 Kc2 f8Q Kb1 Qfb8 Bf7 Qe5 Ne6 Qh8 Ng7
4B3/R4rBp/B1bQ1pnr/k4b2/2n1QB1N/b1N1RP1b/Q3Kb1N/1r1q4 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 h4 gxh4 c4 a5 g4 d5 e4 Kd7 e5 Kc7 c6 Kb6 g5 f6 e6 a4 e7 h3 e8B a3 c7 a2 g6 h2 c5+ Ka5 b6 d3 g7 d4 b7 d2+ Ke2 Ne7 g8Q Nd7 b8B Ra7 c6 Nb6 Nf3 Ng6 Nc3 Bh3 c8N Rf7 c7 Ba3 Nd6 Nc4 c8Q Qd7 Rg1 h1B Nh2 Bc6 f3 Qd8 Qc2 d1R Bh6 Rb1 Nf5 Qd5 Qf8 Rg8 Qb7 Qd7 Bg7 d3+ Kf2 d2 Bf4 d1B Qd6 Be2 Nh4 Bd3 Be2 Bdf5 Re1 Qe6 Bf1 Qd5 Re3 Qd3 Qbe7 Qd1 Qee4 Rb6 Rc1 a1B Qa2 Rb1 Rc2 Nge5 Rb2 Ng6 Rb7 Bb2 Ne2 Bd4 Nc3 Bc5 Ra7+ Kb4 Qc7 Nf8 Bgh6 Rg6 Bg7 Rh6 Qd6 Ng6 Be2 Qd4 Bd3 Na5 Ba6 Nc4 Ke2 Ka5 Rd3 Qd5 Nf1 Bd4 Nh2 Bf2 Re3 Qd1+
k7/3P1R2/b1N2Q1r/1nrQRQp1/1Nq2n2/p3BnKn/3b1n1b/N2N1R1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 Kc7 h4 Kb7 h5 a5 h6 g5 d6 a4 h7 a3 d7 c4 b6 f3 e5 c3 e6 c2 d5 f4 d6 Ra6 b5 Ne7 Nd2 Qc7 d8Q Nd5 d7 Ka8 e7 Nc6 e8R Nd4 Nh3 Qc4 Re5 Ra5 Nb3 Bc5 Qf6 Ba6 Be3 c1B Bg2 Bd2 Qf5 g3+ Kg1 Re8 Nf2 Re6 Rh5 Rh6 Bh1 g2 Kh2 g1N h8Q+ Bc8 Rb1 Nh3 Qhf6 Bb7 Na1 Ba6 Ne4 f2 Nc3 f3 Kg3 Ndf4 b7+ Ka7 b8N Ka8 b6 Nb5 Nc6 f1N+ Kg4 Nh2+ Kg3 f2 Nb4+ Nf3 b7+ Ka7 b8N Ka8 N8c6 f1N+ Kg4 N1h2+ Kg3 Ng4 Rh4 Rh8 Rh7 Ngf2 Rf7 Rh6 Qb3 Ba7 Nd1 Qc3 Qb2 Ng4 Bf2 Nd6 Qa2 Qc2 Qd5 Qc4 Nc3 Bc5 Be1 Bg1 Bf2 Rc5 Be3 Nb5 Rf1 Ngf2 Nd1 Bh2+
6k1/1B1pR2n/1Q1N1BnR/r3Qr2/pRbBb2K/r2PQrN1/8/r2Qqb2 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Kf8 g4 h5 e4 a5 e5 c5 e6 f5 g5 c4 b7 f3 g6 c3 d3 a4 b6 f4 b5 h3 Nd2 h2 Ne4 h4 Be3 h3 Bd4 c2 Nd6 c1R Rb1 Qe8 Ne2 Ra5 Bg2 Rh5 Ng3 Rc3 Rb4 Nc6 b8B Ne5 b7 Nf6 e7+ Kg8 b6 Rf5 g7 Ng6 Ba7 Rb3 b8Q Ra3 b7 Nh7 Re1 h1R Bf6 h2 Bad4 Rg1 Qa7 h1B b8Q Ba6 Qbb6 Bc4 Re4 Qf8 e8Q Re1 Qe5 Qe8 Qeb5 Rg1 Re7 Re1 Qe5 Re3 Kg1 f2+ Kh2 f1B Kh3 f3 Kg4 f2 Bb7 Nf4 Kh4 Be4 Qbc5 Rf3 Qab6 Bc6 Qe3 Be4 Qe5 Ng6+ Kg4 Ngf8 Qee1 Bed5 Rf7 Qe6 Kh4 Bg2 Qc1 f1R Re7 Rg1 Qef4 Qe2 Qf2 Be4 Qe5 Qe3 Qcc2 Rga1 Qd1 Qe1 Qe3 Bf1 Bc6 Ng5 Bb7 Kh7 g8R+ Bf7 Kg4 Ng6 Rg7+ Kh8 Rh7+ Kg8 Rh6 Bc4 Kh5 Nh7+ Kg4 Nh8 Kh4 Ng6+
2k1n3/2Pnp2B/2n1r2R/7N/nb3N1B/K1R2NqQ/4rpnB/1bRNbQ2 w - - 0 1 illegal: No proof kernel
8/Q1pR2b1/1BRNq3/Q4Rn1/bnP1p3/1B1nNr2/2bK1NBk/N1nr3n w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 f4 Ke7 b4 Ke6 g4 a5 g5 Kf5 g6 d5 e6 h5 b6 a4 b7 d4 g7 d3 e7 h3 e8N a3 b5 h2 b6 a2 Nc3 h4 Kd2 h3 Qe1 Kg4 f5 Ra6 f6 Qd5 f7 Nf6 g8B Qd6 Nd5 Nc6 b8N Nh7 b7 Ng5 Bg2 Bg7 f8R Ra3 Na6 Qe6 b8Q Nb4 Rf5 Bd7 Qa7 Ba4 Nd6 Rh5 Rb1 a1N Nc5 Rh8 Bf7 Rd8 Nb3 Rd7 Bb2 Rd8 Bd4 Rd7 Qd1+ Kg3 Qh5 Rd8 Rd1 Rd7 Kc3 d2 Ne3 Rd8 Rc1 d1B Kd2 Rd7 c3 Bc2 Bb6 Rd8 Nf3 Rd7 Rhd1 h1N Ng1 h2 Nh3 Nf2 Bg8 Nfd3 Nf2 h1N Bf7 Bb1 Rc2 Na2 Rcc1 Nc2 Na1 Ncb4 Rc2 Nac1 Bg8 Qe8 Bb3 Qe6 c4 Bb5 Rb2 Bc2 Ra2 Ra6 Ra5 Ba4 Rac5 Ra5 Rc6 Rd5 Qe8 Kh2 Qea8 Rb5 Qa5 Rd8 Q8a7 Re5 Rf7 Rf5 Rf1 Rf6 Rd7 Rf4 Nh3 Rff8 Rf5 Rf7 Nf2 Rf6 Rd5 Rf3 Rf5 Rf8 Rff7 Rf6 Nh3 Rf1 Nf2 Rg1 Rf5 Re1 Rd5 Rf3 Rf5 Rd1+
QQq4B/2pBbQ1P/1B2RRK1/2rrQ2p/5r2/3Rr2k/bn1b3N/rn1N4 w - - 0 1 illegal: No proof kernel
1b3n1r/1PpN4/r1n1p3/1qR3R1/1B2R3/1BQNbk1n/b3Nb2/2BNKQ1b w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 f4 Kd6 g4 a5 b4 h5 g5 e6 b6 e3 b5 e2 g6 a4 f5 a3 f6 a2 f7 h3 g7 h4 b7 h2 b6 h3 Nc3 Nd7 b8N Ne7 g8R Ba6 b7 Nc6 Rg5 Be7 f8B Bc4 Qc2 Qe8 Nd1 Ra3 Qc3 Ra6 Rb1 a1B Rb5 Qh5 Rc5 Ba2 Bg2 Bb2 Be4 Ba3 Bc2 Bb4 Bb3 Qe8 Bg7 Nf8 Nd7 Ba5 Bh6 Bb6 Ba3 Ba7 Bb4 Nb8 Rg6 Bf6 Bc1 Nc6 Rg7 Bb8 Rg5 Ke7 d6+ Kf7 d5 Bd4 Nb6 Be3 d7 Ke7 d8N Kd6 Nd7 Qh5 Nf3 Qe8 Rf1 h1N Nd4 h2 Rf4 Nf2 Re4 h1B Nf7+ Ke7 Nb2 Nh3 Nfe5 Kd6 Ned3 Bg1 Nd1 Qh5 Rg2 Qe5 Rg5 Qf5 Kd2 e1B+ Ke2 Bh4 Kd2 Bhf2 Ne2 Be3+ Ke1 Ke7 d6+ Kf7 Rh5 Kg6 Rg5+ Kh6 Nb6 Qd5 d7 Qc4 d8Q Qb5 Rgd5 Kg6 Nd7 Kh6 Qe7 Kg6 Qf7+ Kh6 N7e5 Kg5 Qf1 Kh5 Nef4+ Kg5 Nd7+ Kg4 Ne2+ Bf4 N1f2+ Kf3 Rg5 Be3 Nd1+ Bgf2+
2qrNB2/1pB4n/rQ1K1R2/3Bnbkb/1RQ3N1/2n1R1np/1P4n1/1N1bN3 w - - 0 1 illegal: No proof kernel
2B5/kp2r2p/1NB1RnB1/2Q5/1NPnrQn1/b3BRnK/2b1q2N/2Rn2r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 d5 g4 Kd7 f4 Kc6 Kf2 Kb6 Kg2 e5 a4 d3 a5+ Ka7 f6 e4 f5 b3 a6 b2 f7 d2 f6 e3 g6 e2 g7 e1N+ Kh3 d4 Bg2 d3 Nc3 b1R Bc6 Bd6 f8R Ne7 g8B Qc7 f7 Bg3 Nf3 Rb4 Nh2 Nf3 Nd5 Nf5 g5 Nd7 g6 Rb1 g7 Qe5 Nb4 Qe2 Qf1 d1N Be3+ N3d4 Qf4 d2 Re1 Rc1 Rb1 Nf6 Ra1 Bd7 Rb1 Re8 Ra1 Kb6 a7 Re4 Rb1 Be6 a8N+ Ka7 Nb6 Bd5 Qh4 Bd6 Qf4 Rc2 Rc1 Ng3 Rc8 Rb2 f8Q Rb1 Be6 Be7 g8B Nf2+ Kh4 d1N Bgf7 Ra1 Bg6 N2g4 Kh3 Bc5 Q8d6 Re8 Qde5 Re7 Rf8 Bd6 Bc8 Be6 Qc5 Bd7 Bd5 Ba4 Bc6 Bc2 Rf1 Ng8 Rf6 Rb1 Re6 N8f6 Rf3 Ra1 Nd3 Rb1 Qb5 Bb4 Qc5 Ba3 Nb4 Nc3 Rd1 Ra1 Rd3 Re1 Rd1 Rg1 Rc1 Nd1
r2Q3r/Pkn5/2b2pbr/r4Nnp/BbR3R1/1q1R2NB/1K1B1Q2/1R1rQ3 w - - 0 1 illegal: No possible last move
k6b/prnR1nR1/pB1bq3/1r3Q1R/2N3rb/2QB2Bb/KNP5/b1R1Q3 w - - 0 1 legal: proof: e4 f5 exf5 c5 a4 h5 g4 hxg4 d4 Na6 dxc5 Nb8 a5 Rh6 a6 bxa6 Qd4 Rh4 Qd1 Rh8 Kd2 e5 Kc3 g5 Kb3 d5 f4 Kd7 h4 Kc6 f6 Kb7 f7 d4 f5 d3 h5 d2 f6 e4 h6 g3 h7 g4 Ka2 e3 b4 e2 b5 e1B b6 g2 Ne2 g1B Rh5 g3 Nec3 g2 Na4 Be7 f8Q Bh4 f7 Nf6 Nb2 Qd6 Bd3 Nc6 Qe1 d1R Be3 Ne8 Nd2 Nc7 Rc1 Qe6+ Ndc4 Rg8 h8Q Rg4 Qhc3 Ne5 c6+ Kb8 b7 Bd6 Bb6 Bd4 Qf2 g1B Qfe1 Ba3 Qc5 Bd7 f8B Nf7 Qf5 Bh8 Bd6 Bgd4 Bg3 Bd6 Rb1 Qe2 Qa3 Nb5 Na4 Rg6 Bc5 B6e5 Qf4 Ba1 Qac3 Bh3 Qf5 Nh6 Bcf2 Bd6 Bg1 Kc7 b8R Rg4 Rg8 Rb8 Rg7+ Nf7 Bd4 Qe6 Bb6+ Kc8 c7 Kb7 c8R Ka8 Rc7 Rb7 Rd7 Nc7 Be4 Rd5 Rc1 Qe7 Bd3 Rb5 Nab2 Qe6
b2q3Q/p2B2p1/r1n1n3/r1Bk2B1/nb1nR2Q/RKP2R2/2nN1b2/5BQN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 b4 Ke6 e4 f5 h4 d5 h5 d3 Kc3 f4 h6 d2 b6 g3 h7 d4+ Kb3 d3 b5 f3 b7 g2 c3 f2 b6 Nc6 b8Q Bb7 Rh3 Nge7 Ra3 Nd5 Ne2 g1B Ng3 Nc7 Nh1 Bb4 Rf3 Rf8 h8Q Rf6 Qe1 d1N Qh4 Nb2 Bg5 d2 Qc1 d1N Nd2 Na4 Qc8+ Qd7 Qch8 Rc8 Qb1 Ba8 b7 Rcf8 b8B Ne3 Qa1 Nc2 Qc1 Ne8 Bd6 Nc7 Bc5 Rb8 Qe1 Rb5 Qd1 Ra5 Qb1 Qd8 Qe1 Kd7 e6+ Kc8 e5 Kb7 e7 Ne6 e8B Rg6 Bd3 f1N Bd7 Ng3 Bf1 Ne2 Qeg3 Bf2 Qg1 N6f4 e6 Ned4+ Ka2 Rh6 e7 Nfe6 e8R Kc7 Bb6+ Kd6 Bc5+ Kd5 Re7 Nf4 Re4 Nfe6 Qgg4 Nf4 Be2 Ne5 Bf1 Rha6 Qgg3 Nfe6 Qg1 Nb5 Kb3 Nc6 Ra2 Ne5 Ra1 Nc6 Ra3 Nbd4+
B1n1B1q1/pPQ5/1bKrNr1Q/5n2/BRN1r1b1/5kr1/RB1n2p1/N2r3Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 g5 c4 f3 b4 g4 h4 d3 h6 f2 h7 g3 b6 f6 h5 g2 h6 d2 c5+ Kc6 b7 d6 b5+ Kd7 Kd5 f5 e4 f4 c6+ Kc7 e5 f3 e6 Na6 e7 Qe8 Nh3 Nc5 Bb2 Na4 Nf4 Bg4 Rh4 Rd8 Bd3 f1R Bc2 f2 Na3 Bg7 b8N Bd4 Nd7 Bb6 Ra2 Re1 Nc5 f1N Qc1 Re4 Nc4 d1R+ Nd2 Rde1 Ncb3 R1e3 Na1 Rg3 Nc4 Nd2 Bd1 Qg6 Qc2 Rf8 e8B Rf6 Qc1 Nc5 Ba4 Ncb3 Qh1 Nd4 Qc1 Nf5 Ne6+ Kb8 c7+ Kb7 Nd4 Qg7 c8B+ Kc7 Bb7 Qg5 Bh5 Kd7 Ne6 Ke7 Kc6 d5 Bc2 d4 Ba8 d3 Be8 Qg6 Ba4 Qg7 Bd7 Kf7 Qc3 Kg6 Qe5 Qf8 Qc7 Qf7 Be8 Nge7+ Kb7 Rg8 h8Q Nc8 h7 Rf8 Kc6 Rg8 Bd7 Rd8 Qf8 Qg8 h8Q Nf1 Qfd6 d2 Qf4 d1R Be8+ Rf7 Qe3 Nd2 Qg1 Rd5 Qh1 Rd8 Nd4 Kg5 Qh7 Ba5 b6 Rd5 b7 Rf6+ Qd6 Bb6 Qc7 Ree5 Qe6 Kf4 Qed6 Ke4 Ne6 Kf3 Qf8 Re4 Qh6 Ng7 Rh5 Rd8 Rb5 Nf5 Rb4 Rd6+
rQ1q1Rb1/3k2BQ/nn6/8/3N1N1b/rrrB1n1R/p1QKPbp1/3BB1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 c4 a5 h4 g5 b4 f5 b6 d5 c5 d3 e6 g3 h5 g2 h6 a4 c6 a3 h7 a2 c7 g4 b7 g3 e7 f4 b5 d4 b6 f3 Qb3 f2+ Kd2 Ra3 Qc2 Be6 c8Q Na6 b8Q Nf6 b7 Bg8 Nc3 Nd5 Qh3 Nb6 Nd5 Bh6+ Nf4 Bg5 Qf5 Bh4 Rh3 Rb3 Qe4 Kd7 Rb1 Rc3 Rb5 Rb3 Rf5 Ra3 Rf8 Rb3 Nf3 g1B Bg2 Ra3 Bb2 Rb3 Bc3 f1N+ Ke1 Be3 Ng1 Nh2 Bb4 Bf2+ Kd2 Rc3 Qg6 Ra3 Be4 g2 Bc3 Rb3 e8B+ Ke7 Ba4 Nf3+ Kd1 d2 Bd3 Ra3 Qa8 Rb3 b8N Ra3 Nc6+ Kd7 Qb8 Rb3 Qc1 Ra3 Kc2 d1R Be1 Rb3 Qb2 Rd2+ Kc1 Rc2+ Kd1 Rcc3 Qc2 Be6 Qh5 Rg8 h8B Rg3 Be4 d3 Bg7 d2 Bd3 Bg8 Qh7 Ra3 Qb2 Rcb3 Kc2 d1R Nd4+ Rb5 Qb3 Rb1 Qc4 Rbb3 Kc1 Rc3+ Bac2 Rcb3 Bd1 Rc5 Qc2 Rc8 Qe5 Ra8 Qb8 Ng5 Kd2 Re3 Be4 Rec3 Bd3 Nf3+
b2k4/2bBRB2/1q1N4/Rr1Q1nQ1/nr1QP1b1/1n3p2/p1bRBK1r/2B4N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 b4 h5 c4 a5 g4 f5 e3 d5 b6 a4 b5 a3 b7 f3 c5 h4 g6 h3 g5 h2 c6 f4 g7 d3 g6 d2+ Kf2 d4 b6 d3 c7 Bg4 c8B Nd7 b8Q Nh6 g8Q Nc5 b7 Nf5 g7 Na4 Be2 Qb6 Qd6 Ra5 b8R Rb5 Qdd5 a2 Nc3 Rb4 Ne4 Rh6 Nd6+ Kd8 Rb7 Rb5 Qe1 d1R Re7 d2 Nh3 Rb4 Rg1 h1B Bd7 Rb5 Qf1 Re1 Qg2 d1B Qd4 Bc2 Qgd5 Rh4 g8B Bh6 Ng5 Rh2 Bf7 Bg7 Nge4 Be5 Ng3 Rb4 Bd2 Reb1 Bc1 R1b3 Rd1 Rb5 Rb1 R3b4 Ne8 Bd6 Rd2 Bb8 Nd6 Bc7 Kf1 f2 Qg1 Bhe4 Nh1 Bef3 Rb3 Bfe4 Ra3 Bef3 Qe6 Ba8 e4 Rh6 Kg2 f1N Qed5 f3+ Kf2 Rh2+ Qg2 Nc3 Ra5 Na4 Rd1 Rh7 Qg1 Nd2 Qg3 Nb3 Rd2 Rh4 Qf4 Rh5 Qg5 Rh2+
2kB2B1/1N1n3b/7r/bnn2qB1/1p3NN1/p1Qb1r2/KN2R2P/1bRR1r1Q w - - 0 1 illegal: No proof kernel
1Q1N4/3r2bK/NQRB4/N4p1k/n3Bq2/1r1NRPrb/p1BbR3/nr5n w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 a5 Ke3 f5 Kf4 Kf7 Kg5 h5 c4 a4 g4 e3 d4 h3 d5 h2 d6 a3 c6 h4 c7 a2 d7 h3 f3 e2 b6 e1R b7 Ra4 c5 Ra5 c6 Re2 Qd4 Ra7 Bf4 Nf6 Na3 e5 Re1 e4 Qb6 e3 Nc4 Na6 b8N Bg7 Bd6 Rg8 Na5 Rb2 Bd3 e2 Be4 Nb4 Na6 Rb3 Bc2 Bb7 c8Q Qc7 Qb8 Nfd5 Be4 Nc3 d8N+ Ke8 Kg6 Nc2 g5 Na1 Kh7 Na4 g6 Bc8 Ba3 Qf4 Bd6 Rd7 c7 Bb7 c8R Bc6 Be5 Bb5 Rc6 Ke7 Bd6+ Kf6 Bc2 Kg5 Be4 Kh5 Bc2 Bc3+ g7 Bb2 Rd1 e1B Rd2 Be5 Re2 Bd2 Re3 Bf1 Ne2 Bg2 Re1 h1R Nc1 h2 R1e2 Bh3 Nd3 Rhb1 Nf7 Re8 g8B Bg7 Nd8 h1N Bd5 Re6 Be4 Rg6 Qd4 Rg2 Qdb6 Rg3
n1b3rR/1k2b1b1/4bBK1/rn3pPQ/R1pN2N1/Q1Q3Nn/3RBqr1/6R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 a5 d4 h5 e5 a4 b6+ Kb7 d6 a3 d5 h3 e6 h4 b5 h2 d7 a2 e7 c4 e8N h3 d6 Rh4 Bb2 Qc7 d8R Qg7 d7 Ra6 Ne2 Qe5 Nd2 Qd4 Nb3 Rh8 Ng3 Nf6 Be2 Rg8 Rg1 Ne4 Nf6 h1N g5 h2 Ng4 Qd2 Bf6 Nc3 Nd4 Ra5 Re8 Ba3 d8R Be7 Qa4 Qe1 Qa3 Na6 Kg2 f3+ Kh3 f2 Kh4 f1B Kh5 Nf2 Rd5 Nh3 Rd6 Rf8 Kg6 h1R Rd5 Nc7 Rd7 Rf7 Rh8 Bg2 Rd5 Na8 Rd6 Kb8 b7 Rf8 Rd8 Ka7 b6+ Ka6 b8Q Qf2 b7 Nb5 Qf4 Bd5 b8Q Rh2 Qfe3 Rg2 Qec3 Bde6 Qbd6+ Ka7 Qd7+ Kb8 Qe8 Kc7 Qf7 Kb7 Qh7 Re8 Qh5 Rf8 Nc6 Re8 Rd2 Rf8 Nd4 Rd8 Rab1 a1B Rb4 Rg8+ Kh7 Bf8 Ra4 Bg7 Kg6 Bb2 Qa2 Ba3 Qab2 Bc5 Qba3 Be7
2Bn4/2b1RQb1/1b1N3P/2B2BQ1/R4N2/qnBrNb2/2Q1Kppk/1r1n2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 h4 Kd6 d4 a5 e4 g5 b6 c5 b7 f5 h5 g3 b5 a4 b6 g4 h6 g2 Qf3 g3 Nh3 g1B Be2 g2 Qf2 a3 Nc3 f3 Nd1 f4 Bd2 a2 Ne3 c4 Bc3 Ne7 Bd3 Nbc6 Qc2 f2+ Ke2 f1R b8Q+ Qc7 b7 Bg7 Re1 a1N Qa7 Nf5 b8B Rd8 Rh2 Bb7 e5+ Kd7 e6+ Kd6 e7 Nb3 e8B f3+ Kd1 Bf2 Nf4 Rg1 Rh4 Rd7 Bf7 Nd8 Be6 Bg3 Be4 f2 Ke2 Bc6 Qb7 Ra1 Ba7 Qa5 Bb6 Rb1 Qc7+ Ke7 d6+ Kf6 d5+ Kg5 Bc5 Qa3 Qa7 Rb7 Bc8 Rd7 Nf1 Ne3 Bf5 Nd1 Ne3 Rb7 d7 Rb4 Be5 c3 d6 Rd4 Qc7 Rd3 Bed4 Nf7 d8N Bh2 Nb7 Nd8 d7 Be4 Qb2 c2 Nd6 c1B Qc2 Bd2 Qb7 Ba5 Bc3 Bb6 Qd5 Bg3 Qf7 Bc6 Nfd5 Bh2 Ra4 Bhe5 Nf4 Kh4 Rf1 Kg3 Re1 Ne6 d8Q Kh2 Qg5 Nd8 Ndc4 Bb8 Nd6 B8c7 Ned5 Rd2+ Kf3 Rh1 Re7 Rd3+ Ke2 Rg1 Ne3 Bf3+
3bN2Q/2KN3n/rBBRPNkn/7b/3qR3/1ppQ3r/R2r1BNn/bb6 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 c5 Kf3 g5 Ke4 b5 Ke5 f5 h4 Kf7 d4 g4 e4 c4 a4 c3 h6 g3 h5 b3 a5 b4 a6 b2 a7 g2 d6 f3 d5 f2 h7 f4 h6 f3 d7 b3 d6 Qc7 d8R Qc6 d7 Qg6 Qd3 Bb7 Rh4 Bd5 Ne2 g1B Bg2 f1N Nd2 b1B Ra2 f2 Nf4 Be6 Bf3 Bc4 Ng2 Qg4 Ba3 Be6 Bc5 Bg7+ Kd6 Bf8+ Kc7 Be7 e5 Nh2 Bc6 f1R Ne4 Rd1 Nf6 Qd4 Re4 Bg4 e6+ Kg6 Bb6 Bh5 Bc5 Qc4 Bf2 Qc5 Rc8 Qe3 d8B Nd7 Rb8 Nf8 Rb6 Qd4 Rba6 Rb8 a8N Rd2 Nb6 Ra8 Nbd7 Ba3 Rb6 Bb2 Rba6 Ba1 Rb6 Ne7 Rba6 Nf5 Rb6 Rg8 h8Q Ra6 h7 Nh6 Ba8 Rg7 Rd6 Rf7 Bc6 Rg7 Kc8 Rg8 Bb6 Rg7 Kc7 Rf7 Ne8 Rf3 Ndf6 Rh3 Qg8+ Kf5 h8N Nh7 Ng6 Kg5 Qh8 Kf5 Be1 Be3 Bh4 Bg5 Bf2 Bh4 Ne5 Kg5 Neg4 Kg6 Nd7 Be7 Ngf6 Bd8+
6B1/b2Qq1RB/1k1pN2K/1rnn2Nr/5bP1/Q1B1RR1n/1R3prn/2Q4b w - - 0 1 illegal: No possible last move, all moves rejected
2Q1N1B1/R3Rn2/p1BQ1PR1/b5p1/b1k2BQr/1rq3nr/4Nn2/Rb1K3b w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 f4 Kf7 h4 g5 c4 e5 b4 d5 b6 g3 b5 g2 c5 e4 h5 d3 h6 d4 f6 Ke6 b7 Kd5 f7 e3 b6 e2 h7 a6 c6 Kc4 f5 Bb4+ Nc3 Ba5 f8Q Qf6 c7 Nh6 Bf4 Nc6 b8Q Nf7 b7 Nce5 Rh6 Ng4 Qd6 Nf2 Rg6 Qg7 Kd2 e1R Qg4 Rb1 Ne2 g1N Bg2 Rb3 Bc6 Ra7 Kc1 d2+ Kc2 Be6 c8B Bd5 Nb5 Bh1 Nc7 d1B+ Kc1 d3 f6 Bc2 Ne8 Bb1 Bf5 Qh6 Qc8 Qh3 b8R Re7 Rb7 Re4 Ra7 Rd4 Nc3 Ne2+ Kd2 Ng3 Kc1 Ba2 Ne2 d2+ Kc2 d1B+ Kc1 Rg8 h8R Bb1 Rh7 Rh8 Bfe4 Nd8 Rhe7 Nf7 Rg8 Rh4 Bh7 Rdd3 Rg7 Rb7 Bg8 Ba4 Rg6 Rbb3 Ng7 Rf3 Ne8 Nge4 Bd2 Qg3 Be3 Qe5 Bf4 Rfh3 Qgf5 Ng3 Qg4 Nfe4 Kd1 Qb2 Re6 Qc3 Ree7 Nf2#
R4n1B/bb1B1r1P/1N1RR3/2Q1Kn1B/N1r3pq/1Qr1n3/QQn1p2k/6b1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 h4 e5 f4 a5 b4 a4 c4 d6 b6 a3 b7 d3 h5 d2 b5 g3 h6 g2 c5 a2 c6 Be6 h7 Ra6 c7 Ra8 c8B Ra5 b6 Nd7 b8Q Nh6 b7 Ra7 Ne2 g1B Qc2 d1R Na3 Rd3 Nc4 Rc3 Bb2 g4 Re1 a1N Nb6 Ba2 Qa8 Be6 Qb3 Nc2 b8Q Rac7 Qaa2 R7c4+ Nd4 Rg8 Bd3 Rg7 Rh2 Re7 Rd2 Rf7 Ree2 Be7 Qb7 Nf8 Bd7 Rc7 B3b5 R7c4 Be8 Bc8 Bbd7 Na1 Kd5 e4 Ne6 e3 Nc5 Nc2 Qb8 Ba6 Nca4 Bb7+ Bc6 Kg7 f6+ Kg6 f5+ Kg5 Re1 Kf4 Rd3 Ba6 Bcd7 Kg3 Rd4 Kh2 Ke4 Rg7 f7 Bb7+ Kf4 d5 f6 Bc5 Ke5 Nf5 Ba1 Ne6 f8Q Rf7 Rdd1 d4 Rd3 Re7 Bh5 Rf7 Rdd1 d3 Qbb2 Bb4 Qc5 d2 Qbb3 Nf8 Qbb2 Rg7 f7 Qh4 Qbb3 Ne6 f8R Rf7 Re8 Nf8 Re6 e2 Bb2 Rf3 Ra1 d1N Bc3 Nde3 Red1 Rf1 Rdd6 Rc1 Bd4 Be1 Qbb2 Bf3 Qb7 Bef2 Qbd5 Rc3 Qdb3 Rc4 Kf4 Rc3 Bh8 Bb7 Ke5 Rd1 Re8 Rd4 Ra8 Rb4 Re6 Rf4 Rd1 Rfc4 Rdd6 Nh6 Nc8 Nf1 Qd5 Ba7 Qc5 Nfe3 Ncb6 Nhf5
b2Q2K1/3bNB1P/nr5k/1Q3Qn1/R2N1Rpn/1q4rr/1B1p1Q2/1B1bbN2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 a5 e4 f5 b4 Kf7 h4 g5 c4 Kg7 c5 a4 h6+ Kg6 h7 g4 h5+ Kg5 b6 a3 c6 a2 c7 Ra6 h6 Bd6 b5 Bb4 b7 Ra5 b6 Kg6 e5 f3 e6 f4 e7 f2 Qf3 Rb5 Nd2 Na6 b8N Bd7 c8Q Nf6 b7 Ne4 Bb2 Qb6 Nc6 Ng5 b8Q Qb7 Ne2 Rb6 Bg2 f1N Qf2 Nh2 Nf1 Be1 Be4+ Kh5 Qe5 f3 Qf5 Qb8 Qb7 Qg8 e8B+ Qf7 Rb1 a1R Ne7 Ra2 Ra1 Ra3+ Kc2 Rab3 Ra4 Ra3 Qc6 Rab3 Qb5 d3+ Kd1 d2 Bb1 d4 Kc2 Re3 Rg1 d3+ Kc3 d1B+ Kd4 d2 Rg3 Rc3 Ke5 Rd3 Nd4 Ra3 Qg2 f2 Rf3 Rd3 Rf4 Rg3 Qg1 Rb8 Kd6 Nf3 Qh2+ Nh4 Ke5 Rf8 h8Q Rb6 h7 Kh6 Qg8 Qa2 Bf7 Qb3 Qg1 Rc8 Qd8 Rcc3 Qg2 Be6 Kf6 Bd7+ Nec6 Rh3 Ke7 Rcg3 Kf8 Qe6 Ne7 Qb3 Nh2 f1B Kg8 Bd3 Qf2 Be4 Nf1 Ba8
6r1/3NP3/b1NRB2n/1RppKbk1/1rQ4n/2nNR1b1/3RbqQr/B4Q2 w - - 0 1 illegal: No possible last move
3k1b2/1K1p1rRN/1R3b2/1QNq4/1b1BbPpB/r1Q2Q1n/3n4/1BNrnQ2 w - - 0 1 illegal: No possible last move, all moves rejected
B2Rr2n/3pB3/np2k2b/QN5N/1b1rBP1r/n1N3B1/nQ4K1/QbR4q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 c4 g5 a4 e5 c5 g4 h6 d3 c6 g3 f6 b3 a5 g2 h5 b6 c7 b2 h7 e4 a6 e3 a7 e2 h6 Qe8 Nc3 b1R Bf4 Be7 Bg3 Rb4 f4 d2+ Kf2 e1N Nge2 Na6 Qa4 Bb7 c8N Be4 Nd6+ Ke6 f7 Bf8 Qa5 Rd4 Rc1 Bb1 Ndb5 d1N+ Kg1 Bb4 f8B Nc2 Be7 Qh5 Rh4 Rf8 a8B Na3 Kh2 g1B+ Kg2 Re8 Rg4 Nf6 Rg8 Ne4 Rf8 Ng5 Rg8 Rc8 Rd8 Nf7 Be4 Re8 h8Q Be3 Qg7 Nh8 h7 Rc5 Ba8 Qh6 Be4 Rh5 Ba8 Rh4 Be4 Ng6 h8Q Bd2 Kg1 Bd6 Bfg2 Be5 Kf1 Bf6 Ba8 Bg5 Bge4 Qh5 Kg2 Bh6 Bh2 Qd5 Ng3 Be1 Nh5 Qb7 Nd5 Nc3 Bg3 Na2 Ndc3 Qd5 Ne2 Bb4 Nec3 Rd1 Qd4 Rd3 Qf2 Rd4 Qg7 Nh8 Qb2 Rc4 Qa1 Qd1 Qd4 Qe1 Qf2 Rd4 Qfb2 Qh1+
4rn1k/1pQ1Q1rq/1b2p2r/B2N2n1/BBR2RRb/N2B4/1QbP4/1r1n1K2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kf7 f4 Kg7 a4 c5 a5 h5 g5 c4 g6 h3 a6 c3 d6 b3 a7 b2 d7 h2 f6+ Kh6 f7 Kg7 f5 c2 Ne2 h4 Ra4 h3 Rg4 Qc7 d8B Rh7 f6+ Kh8 Nf4 Nh6 Na3 b1R Bd3 Rg7 Nd5 Bf5 Kf1 Nd7 Qf3 Rc8 a8Q e6 Qg3 Be7 f8Q+ Ng8 f7 Bh4 Qc5 Ngf6 Qe7 Nf8 Qa4 N6h7 Qd4 Rb8 Qb2 Ng5 Rc4 Qd7 Rg1 h1N Ba5 h2 Qc7 Nf2 Rgg4 Nd1 Be2 Nfh7 Bd3 Rg8 f8R h1R+ Kg2 Rh3 Kf1 Be4 Rff4 Re8 Qbb4 Nf8 Bb2 c1B Bc3 Bh1 Qb2 Be4 Bcb4 Rh2 Bc2 Bf5 Ba4 Bc2 Qb3 Bb2 Qa2 Bd4 Qb2 Rf7 g7+ Kg8 Qa1 Bb6 Qa2 Kh7 g8B+ Kh8 Qb2+ Rg7 Bh7 Rh3 Qed6 Qf7 Qde7 Qg8 Bd3 Qh7 Qce5 Bhf2 Q5d6 Rh6 Qdc7 Bh4
b1BQ4/7q/3B1b1b/2Nb1K1k/2QRn1N1/p1n4p/2bRr1NP/RqQR3r w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 a5 g4 f5 c4 Kf7 d4 Kg6 c6 e5 c7 h5 c5 a4 c6 h4 g5 e3+ Kf3 e4+ Kg2 f3+ Kh3 f2 d5 f4+ Qg4 f3 d6 e2 d7 e1Q b6 e3 b7 e2 Qc4 Kh5 g6 Qe7 g7 Na6 b8R Bb7 d8Q Nc5 c8R Nf6 g8N Qh7 c7 Nfe4 Nd2 Bd5 Ba3 Qb1 Rb4 e1B Nb3 Nc3 Nh6 N5e4 Ng4 Bh6 Ne2 Re8 Nc5 Ra6 Bg2 f1B Rb2 f2 Rd2 Rc6 Ra8 Rf6 c8Q Re7 Bb4 a3 Ra7 Ba8 Rad7 Rc6 R2d4 Bed2 R7d5+ Bdg5 Rd6 Bf6 Nf4+ Kg5 Qcc7 Bd3 Rd1 Bc2 Bh1 f1B+ Ng2 Rb6 R4d2 Be2 R6d4 Kh5 Qf4 Bf3 Qe3 Ne2 Qec3 Re5 Qb2 Re8 Qc1 N2c3 Ne6 Qa2 Qb1 Qg7 Ne1 Qh7 Nf2 Nc5 Rc1 Nb7 Bd6 Kg6 Bg2 Bfe4 Kg4 Nc5 Bh3 Bed5 Ng2 Rb7 Rf1 Rbe7 Qc1 Qb1 Ng5 Re6 Rfd1 Re1 Kf4 R8e7 Bc8 h3 Kg4 R7e2 Ne6 N5e4 Nc5 Bhg7 Kf4 Kh5 Ng4 Bf8 Qa4 Rh1 Qc4 Qa7 Kf5 Bh6 R4d3 Qg7 Rd4 Qh7#
1n1qqnb1/kNr5/qRQ1R3/3R1pBB/2Bq3Q/2p2K2/1NBP3Q/q2rb3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 a5 b4 f5 e4 h5 e5 c5 b6 h3 g5 h4 e6+ Kd6 b7 Kc7 e7 Kb6 e8B h2 b5 f3 d6 a4 d7 h3 g6 c4 g7 a3 Bb2 a2 Bf6 c3 Ne2 Be7 Nf4 Ra4 Nd3 Ra8 Bh5 Nc6 b8R+ Bb7 Qa4 Ra7 Bg5 Nf6 g8B Nh7 Nb2 Nf8 Bd3 Bd6 Rf1 h1Q Bgc4 h2 Na3 Bg3+ Ke3 f2 Rfe1 f1Q Bc2 Qd5 Rab1 Qf6 Rd8 a1Q Re2 h1Q Qa6+ Kc5 b6 Nb8 Nb5 Be1 Nd6 Qh4 Qa4 Qg6 Qa6 Bc6 b7 Qdg8 Qa4 Bd5 Qa6 Be6 Qa4 Qg1+ Kf3 Kb6 Re4 Qd4 Qc6+ Ka5 Re2 Qe8 Re3 Qgg6 Re2 Bg8 Re6 Na6 b8Q Rc7 Rc8 Qh6 d8Q Rh7 Qf6 Qhg6 Rd8 Qh6 Qc8 Nb8 Qh8 Rhg7 Qa4+ Kb6 Nb7+ Nc6 Qb4+ Ka7 Rd5 Nb8 Qd6 Qhf6 Qh2 Qfd8 Qh6 Qd6 Qd7 Qda6 Qc6 Rg6 Na4 Rgg7 Rb6 Rh7 Nb2 Rhg7 Bf4 Qhd8 Qf6 Rg1 Bg5 Bf2 Qh8 Rd1 Qh4 Be1 Qe5 Qc5 Qeh2 Qd4
2br1k1K/4bN2/3BB2b/B1PpB3/1p2R2b/r1R2q1N/2b1Qn1n/1Qq2NR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 b5 Kd3 g5 Ke4 e5 h4 b3 a4 g4 f4 g3 c4 d6 h6 d3 c5 d2 f6 b2 h7 g2 h5 Ne7 a5 Bh3 h6 Nd5 f7+ Ke7 f5 Rg8 h8B Qd7 a6 Qc8 h7 Nd7 f6+ Ke6 a7 Ne3 Ra4 Ng4 Qe2 d1Q Nd2 Be7 f8Q Nh2 f7 Qb8 Qg7 Rd8 f8B Qe1 Qg4+ Kf7 Kf5 b1B+ Re4 d5 Bb2 Qb6 Bc3 Qc1 Ba5 b4 Bhg7 Ke8 h8N Bc2 Nf7 Nf6 Kg6 Qc7 Qh5 Nfg4 Kh7 Nf2 Qg6 Bc8 Nh3 g1B Kh8 Qd7 Bg2 Qf5 Nf1 Qf3 Qf5 Nd3 Bf6 Be3 Rg1 Nf2 Qh7 Bh6 Qg6 Rb8 a8R Rb7 Ra6 Ra7 Re6 Ra8 Re3 e4 Be5 Ra7 Rc3 e3 Qe4 Ba4 Qb1 Bc2 Rf6 Ra6 Rf4 Ra8 Re4 Ra6 Qd3 e2 Qd1 e1B Qe2 Bh4 Bfd6 Be7 Rh1 Kf8 Rg1 Qd3 Bf3 Qde3 Bg4 Qf3 Be6 Ra8 Bac7 Ra3 Bb6 Nd3 Bbc7 Bh4 Ba5 Nf2
N3rQ2/k1N2R1r/3Rb3/1qp2KbB/2Rq1QQ1/1p1n2N1/1BQ4P/b1b1n1b1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 g5 Ke4 b5 a4 c5 d4 Kc7 f4 Kb6 a5+ Ka7 a6 e5 f6 b3 d6 b2 f7 b4 d5 g3 f5 g4 f6 g2 d7 g3 d6 Be7 f8R Nc6 f7 Bg5 Ra5 Nh6 Qc2 Ng4 Ra2 Rh7 Ne2 g1B Na3 b1Q Bb2 g2 Kf5 e4 Ng3 e3 Be2 Nge5 Bh5 e2 Ra1 Bd4 Rd1 e1B Nb5+ Kb6 a7 g1B Nc7 Nf3 Rd3 Nce5 Ra4 Bb7 Rd2 b3 Rc4 Bd5 Rd3 Qe8 d8Q Qa1 d7 Bed2 Qc8 Ne1 d8Q Bc1 Qd6+ Qc6 Qcd7 Re8 a8N+ Ka7 Rd1 N5d3 Qf4 Qb5 Qe6 Bh8 Qee2 Ne5 Rdd4 N5d3 Qeg4 Bh1 Rd6 Bd5 Rg8 Qaa4 f8Q Bhd4 Rg7 Qab4 Ba3 Ba1 Bb2 Qc3 Re7 Qd4 Rf7 Be6+
1q6/3N1BNk/b1r1B1bP/b2pbqn1/Q1QBB1R1/2p5/2Q1b3/rR3KnN w - - 0 1 illegal: No proof kernel
Q1r1Bkr1/1Q5r/1n5P/3p1qn1/p1R1rbq1/3NB1B1/3BbR2/1KRQr2N w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 f4 e5 h4 g5 c4 d5 Kc2 a4 b4 g3 b6 g4 b5 e4 b7 e3 f6 g2 c5 e2 f7+ Ke7 h5 e1R c6 g3 c7 Ra7 h6 Ra8 f5 Ra5 b6 Nc6 b8Q Ba6 c8Q Bb7 Qa8 Rh7 Bd2 Rc5+ Nc3 d3+ Kb1 Ne5 Nf3 g1R Ne2 g2 Rh4 Nc4 Ne5 Nf6 Ng3 Ba6 b7 Ne4 b8B Ng5 Nh1 Qd7 Qcb7 Nb6 Rc4 Rc8 Ba7 Bg7 f8R Re4 Rf7+ Ke8 f6 Qf5 Be2 Re1 Bh5 g1R Bb8 Rg2 Be3 d2 Nd3 Bf8 Bg3 Bd6 Bg6 Bc7 Rf8+ Kd7 Be8+ Kd8 f7 Bf4 Rh8 Bb5 f8B Rgg1 Bb4 Rg2 Qc1 d1Q Bbd2 Qdg4 Qd1 Rgg1 Rf8 Rg2 Qba6 Ke7 Rf6 Nf7 Q6b7+ Kf8 Rfc6 Ng5 Rc1 Bc4 Ra2 Bb3 R6c4 Rgg1 Qf3 Bd1 Qf1 Bf3 Qe2 Rg2 Qd1 Be2 Rb4 Nh3 Bh2 Qgg5 Rbc4 Bg4 Bc3 Rg3 Rf2 Be2 Ba5 Qh5 Bc3 Rg8 Bcd2 Qhg4 Bg3 Ng5
R2r4/B2b1r2/N1NbB1bp/1B4n1/1PqRB2N/bKQRq3/2p1k3/1Q2b1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 Kd7 e4 Kd6 b4 Ke5 g6 Kd4 d3 c5 Kd2 a5 Kc2 f5 g5 a4 g7 h6 e5 a3 e6 a2 e7 f3 e8N f2 b6 c3 b7 c4 g6 f4 Qh5 f3 Nc7 Qd6 Qf5 Qc5 Nd2 Ke3 d4 Ra7 d5 Nf6 g8B Ne4 g7 Ng5 d6 Bd7 Rh4 Nc6 b8Q Ne5 Rd4 Rb7 Bd3 f1B Be4 f2 Ne2 Nef3 Qc8 Ng1 Na6 Bh3 Qc7 f1Q Be6 Qe1 g8B Be7 Qh7 Bf5 Nf3+ Kf2 Nh4 Bg6 Bgf7 Rd8 Be3+ Kf1 Rad1 a1B R1d3 Bb2 Qc8 Ba3 Be8 Qg3 Bf2 Qe3 Qc7 Bb5 d7 Bd6 Rd5 Bc6 Nd4 Bb5 Nc6 Ke2 R5d4 Ba4+ Kb1 c2+ Ka2 c3 Qc8 Bb5 Kb3 c1B Qc7 Bd2 Qc8 Be1 Qc7 Rc8 d8R Ra8 Qcg7 Rd7 Rc8 Raa7 Ra8 Rd8 Ne5 c2 Qf8 Qc8 Qc7 Bc6 Rd5 Qh3 Qf6 Rb7 Ba7 N5f3 Qg5 Bb5 Qc1 Ng5 Qb1 Qe3 Qc3 Qcc5 R5d4 Rf7 B8d7 Bc6 Be8 Bb7 B8c6 Bc8 Bb5 Bd7 Nc6 Qc4+
1RRnq1BQ/4rq2/1B1qn1P1/Kb2qN2/N2pk3/1qp4N/B4r1R/b2Q2B1 w - - 0 1 illegal: No proof kernel
R1nqb1Nn/7B/2qQ1bp1/2r1rP1Q/R1pBQN2/r3K3/3R3R/3Nk1rr w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 f4 Kd6 b4 c5 d4 a5 h4 e5 h5 c4 b6 a4 b5 a3 h6 g3 b7 a2 b6 g2 h7 e3 Bb2 e4 Qd3 Ra3 Nc3 Be6 Nh3 g1R Rh2 Nd7 b8R Ne5 b7 Ne7 Ra8 Nf7 b8N Nc8 Nc6 Bd7 Ne7 Be8 Ng8 Be7 Nd1 Bf6 Bg2 Ra5 f5 g6 Nf4 Rc5 Qc2 Kc7 d6+ Kc6 d5+ Kb5 d7 Kb4 Qb1 Kb3 d6 Kb4 Bh1 Kb3 Qd3+ Kb4 Qd5 Kb3 Bd4 Kc2 Rb1 a1R Rb4 Ra3 Rba4 Qc7 d8Q Qc6 d7 Kc1 Qe7 Kc2 d8R Kc1 Bg2 Kc2 Bf1 Kc1 Ke1 e2 Kf2 Kd2 Bg2 e1R Qed6 e3+ Kf3 e2+ Kf2 Rh1 Qe4 Reg1 Rd7 Ra1 Kf3 Ke1 Ke3 Ra3+ Qd3 Rb3 Bd5 Rbb5 Be6 Re5+ Qe4 Rbc5 Ne7 Rf8 Ng8 Nh8 Bd5 Rf7 Rd8 Ra7 Be6 Nf7 h8Q Raa5 Qh5 Nh8 Nh6 Ra6 Bg8 Raa5 Bh7 Ra6 Rb4 Ra2 Rba4 Ra1 Nc3 Ra3 Ng8 Qd7 Qc6 Ra5 Ba7 Kf1 Bc5 Qe6 Kd4 e1Q Nd1 Qg3 Qc7 Qc6 Qe7 Qb3 Rd5 Qbb6 Qd6 Qd8 Ba7 Ra1 Ke3 Ke1 Rdd2 Rab5 Bd4 Rbc5 Nf2 Ra2 Nd1 Ra3+
6qk/4Kn2/1R3prn/1Rr1Qq2/r1Q1N2N/N1R3P1/r2rp1B1/B1BN2bb w - - 0 1 illegal: No proof kernel
2K1b3/2Q1RQr1/2rp1Qb1/1BNp4/1n1Nb1RP/1bnN4/BB1bqq2/N2k4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c6 b4 axb4 d4 Nf6 d5 cxd5 Bg5 Ng8 Bf4 Qb6 Bc1 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 h4 b5 c4 d6 a4 b3 e4 b4 c5 b2 c6 b3 a5 g6 c7 Be7 a6 Bd7 c8Q Rh6 a7 Rh7 h6 Na6 Nd2 b1B Qc7 b2 Ne2 Qc8 Nd4+ Kf7 e6+ Kf6 Ra4 Be8 Bc4 Nb4 Ba2 Rg7 h7 Qa6 h8N Rc8 a8N Qe2 Re1 Bd3 N2b3 b1B Bb2 g5+ Kg3 Ke5 Na1 g4 Nb6 Bf8 e7 Nf6 Qdc1 Bc4 Qc3 Bb3 Qf3 Bg6 e8B B1c2 Bb5 Bd3 Qf2 f4+ Kg2 g3 Kh3 f3 Nd7+ Kf4 e5 g2 e6 g1Q e7 Bb1 e8Q Ne4 Nc5 Nc3 Nf7 Bbe4 Ne5 Be7 Qf1 Ke3 Qf7 Kd2 Ned3 Qgf2 Kg4 Bf6 Kf4 Be5+ Kg5 Bf4+ Kf6 Bg5+ Ke6 Be3 Qa5 Rc6 Kd7 Bf4 Qh3 Be3 Qe6 Bf4 Qf6 Bh6 Rg1 Bf4 Rg3 Kd1 Qc7 Bd2 Rg2 Qg1 Rh2 f2 Kc8 f1B Rg2 Qgf2 Rg4 Bfg2 Ra7 Bgf3 Rg5 Bfh5 Rg4 Rb6 Qc6 Ra6 Re7 Rb6 Qc7 Rc6 Q7e6 Be8 Qef7 Bhg6
1b3K1k/1b2R2p/qN2B1b1/r1b5/Q1NnR1bP/BNp2R1q/n2N2r1/Q5Q1 w - - 0 1 legal: proof: d4 b5 c4 e5 f4 d5 cxd5 exd4 a4 g5 axb5 gxf4 Kd2 f5 Kd3 Kf7 Kc4 Kg7 b4 a5 h4 c5 g4 d3 e4 f3 e5 f4 g5 a4 g6 d2 b6 f2 d6 a3 Kd5 c4 b5 f3 e6 c3 d7 a2 b7 Qb6 d8N Ra3 e7 Ra5 e8Q Ra4 Bc4 f1B Rh3 f2 Nc6 Ra5 Ne5 Bc5 Ba3 Bb4 Ne2 Ra7 Nd4 Ra5 Rf3 Qa6 Nb3 Bc5 b6 Bd3 Qa4 Nc6 b8R f1Q b7 Nd4 Qc1 d1B N1d2 Bg4 Re8 Qh3 b8N B3c2 Rb1 a1B Nbd7 Bb2 Nb6 Be2 Qe1 Bc1 Rb2 Bf1 Ra2 Bg2 Re7+ Kh6 g7 Bg6 Bb4 Ba3 Qa1 Bd6+ Bc5 Bb8 Rc2 Bb4 Rc1 Ba3 Re1 Bh1 Re4 Bb4 Rc7 Nf6+ Kd6 Rg8 Be6 Nd5 Nec4 Ba3 Kd7 Nb4 Ke7 Na2 Bd6 Bc5 Rb7 Rf8 g8Q Rf5 Rc7 Rg5 Kf8 Bg2 Qh8 Bh1 Qe5 Bg2 Qh2 Bh1 Qhg1 Bg2 Ke7 Kg7 Ra7 Kh8 Kf8 Bf1 Re7 Bd3 Re2 Bde4 Re1 Bd5 Re4 Bb7 Na8 Bca7 Ba3 Bc5 Nab6 B4f5 Nb2 Rg2 Nb2c4 Bg4
2R1Q3/1r2R1pq/1B1BBNQb/1R3r2/r3q2r/1b1pnP2/Nk1r1K2/2NnB3 w - - 0 1 illegal: No possible last move, all moves rejected
1rqBB2q/2BnpQR1/n3K2b/2rN4/4bRN1/rR3Pk1/1pQN2r1/3B3r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 h5 d4 b5 a4 c5 g4 b3 f3 b4 g5+ Kg7 Ke5 b2 f6+ Kg6 f7 h3 a5 c4 a6 h4 a7 Kh5 g6 h2 g7 h3 d6 Kh4 d5 c3 d7 c2 d6 b3 Be2 Ba6 Ra4+ Bc4 Bf4 c1R Qc2 Qb6 d8R Qb4 d7 Qa3 Bd1 Be6 Ne2 Bf5 Nd2 b1R Nc3 b2 Nd5 Na6 Rg1 h1Q Rb8 h2 d8B Qc5 Rb3 Nf6 g8N Be4 Rg7 Nd7+ Ke6 Qc8 Nh6 Rg8 Bd6 Ra1 Ng4 Ra3 B6c7 Rb8 a8B Kh3 Bc6 Kh4 Rg5 Bh6 f8Q Kh3 Rg7 Kh4 Qb1 Rc5 Qc2 Kh3 Qf7 Kh4 Ba5 Kg3 Bb5 Qg2 Bc6 h1R Rab4 Qh3 Bab6 Bg6 Rf4 Be4 Bbc7 Qh4 Rh7 Rg5 Rg7 Qh5 Qg8 Qe8 Qf7 Qh8 Nb1 Rgh5 Rb5 R5h2 Rb3 Rg2 Nd2 Nf6+ Bd7 Qb7 Be8 Nd7 Rc3 Qc8 Re3 Bg5 Rb3 Bh6
2Q1qR2/3p1qkP/1QQ1b3/rN2b1b1/nB1KRr1B/R2BN3/Qp6/1bb4n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 g5 h4 e5 f4 b5 c4 b3 a4 b2 f6 g4 a5 b4 f5 b3 c5 g3 a6 g2 c6 Bd6 c7 Bb7 c8Q Nc6 h6 Nb8 h7 Qe8 h5 Ne7 h6 Rf8 h8Q Bd5 a7 Be6 h7 Na6 Ne2 g1B Rh4 Be3 Nec3 Bg5 Na3 b1B+ Qc2 b2 Nd5 e4+ Kc4 e3 Re4 e2 Nb5 e1B Ra3 d3 Kd4 d2 Bd3 d1Q Q2c6 Bf2+ Ne3 Qh5 Qb8 Be1 Qbb6 Nc5 Bd2 Beg3 Be1 B3f4 Bg3 Na4 Bh4 Rd8 a8Q Qf3 Nc2 Bc1 Ne3 Qh5 Qaa6 Ra8 Qac8 Ra5 Q8a8 Rg8 Qac8 Kf8 f7 Bdf4 Qe5 Qg6 Qeb8 Kg7 f8R Qgf7 Qba8 Nd5 Be2 Nf6 Bd3 Ng4 Qaa6 Nf2 f6+ Kh6 Qaa8 Nh1 Qaa7 Qh5 f7 Kg7 Qaa8 Bh2 Qd5 Bhf4 Qac6 Be5+ Kc4 Bd8 Qc6c7 Kh6 Q7b7 Rg4 Q7c6 Bh2 Kd4 Kg7 Qdc4 Bg5 Qa2 Bc7 Rh8 Rf4 f8B+ Kf7 Bb4 Kg7 Rf8 Qhf7 Be7 Bb8 Bb4 Be5+
QQ3n1q/Q1p2P2/Nbb1rBp1/2RbB3/2N5/7Q/b1nKB3/qRrR1bk1 w - - 0 1 illegal: No proof kernel
B1N4q/1p1Bqkn1/1brb4/P2RQ1BR/2b1bK2/2QR2R1/4N2p/4bQrn w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 cxd5 gxh4 Ke2 e5 Ke3 h5 f4 c5 a4 h3 d4 h2 g4 h4 d6 h3 g5 c4 f5 c3 f6 c2 g6 Rh4 g7 Qc7 a6 Qc3+ Qd3 Ne7 g8Q Nd7 d5 Rg4 a5 Nc5 a7 Ne6 Qg5 Ng7 d7+ Kf7 d8R Be6 d6 Rc8 a8B Bc4 d7 Rc6 Ne2 Rg1 Ra3 Qa1 Bd2 c1B Nbc3 Bb2 Na4 Nef5+ Kf2 e3+ Kf3 e4+ Kf4 Bc1 Qc3 Ng3 Qge5 Bd6 Nb6 Bb2 Nc8 Bc1 Nd4 e2 Rg8 e1Q d8R e3 Ne2 Qb2 Rb3 Qa1 Rb5 Bca3 Rd5 Bac5 Bc1 Bb6 Rd3 Bf8 R8d5 Bd6 Bg2 Qb2 Bf3 Qa1 Bg4 Qb2 Bd7 Qa1 Nd4 e2 Be3 Qed1 Bc1 e1B Bd2 Qh5 Ne2 Qa3 Bc1 Qh8 Bd2 Kg6 f7 Qb4 f8Q Qc5 Qd8 Kf7 Qh4 Bdc7 Qg4 Qe7 Qf3 Bd6 Qf1 Rg2 Rg1 h1B Bc1 h2 Be3 N7f5 Rg5 Ng7 Bc1 Ne4 Rh5 Nf2 Bd2 Rg6 Rgg3 Be4 Rge3 Rg1 Rg3 Bg6 Kf3 Bf5 Bg5 Be4+ Kf4 Nh1
Rrq2r1r/1p3B1Q/1n2p1N1/B5R1/1r4QK/B1PN1r1q/1R1N1b2/kn1b2B1 w - - 0 1 illegal: No possible last move
B2NK3/7q/3qbR1Q/qR1B2N1/kbn3n1/3p1P2/r1pBN1br/1q2BQQ1 w - - 0 1 illegal: No proof kernel
1Q2RqN1/1BB1q3/1bKQn3/2bbNrR1/2r1R3/p1PR1pn1/1r6/4NkbQ w - - 0 1 illegal: No possible last move
q1B2Q2/knR1q2n/2K1NQBR/r2N2Nr/6rp/r3PRN1/1B2bp2/b5b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 d4 Kb7 g4 a5 b4 h5 b6 h3 e3 h2 d6 f5+ Kd5 c4 d7 f3 b5 f4 g5 f2 g6 c3 g7 c2 Bh3 f1Q Qf3 a4 Nc3 a3 Bb2 c1B Nge2 a2 Ng3 Bd2 Rc1 a1R Bf5 Rh6 Bg6 Nc6 Qf2 Kb8 b7 Qe7 d8N f3 Ne6 Qg2 Ng5 Ka7 b8R Bg4 Rb6 h4 Rhf1 h1R Ra6+ Kb8 b6 Ra3 b7 Na5 Rc6 Rh3 Rc7 Ka7 b8Q+ Ka6 Ra1 Nb7 Kc6 Rh5 d5 Be1 d6 Nf6 g8B Nh7 d7 Bg7 Qf8 Ka7 d8N Rh1 Nd5 Rg1 Nde6 Bd4 Qc2 Bf2 Qc3 Qh1 Ra2 Rg2 B8f7 Bg1 Be8 Bh8 Bd7 Ra5 Bc8 f2 Qcf6 Bg7 Rb1 Bf3 Ra4 Be2 Rf4 Bh8 Rf3 Ra3 N3e4 Rg4 Ng3 Qg2 Qf4 Bd4 Q4f6 Qh1 Bc1 Ba1 Bb2 Kb8 Rd1 R8a5 Rd4 Ka7 Rb4 Re4 Rb6 Rg4 Rf4 Bf1 Qc3 Qe4 Nd4 Qc2 Be4 Qa4+ Nb5+ Ka8 Rf3 Qeb4 Kd7 Ra7 Rh6 Qa6 Nd4 Be2 Nde6 Qaa5 Bg6 Qe7+ Kc6 Kb8 Qcf6 Ka8 Rd7 Qad8 Rc7 R7a5 Bd7 Qb8 Bc8 Ka7 Q8h8 Qa8 Qd8 Rga4 Qdf8 Rg4
3B1QB1/qqR1bn1r/kn5R/N1bn2BQ/5PK1/5R2/2R1pp2/r1n2NNb w - - 0 1 illegal: No proof kernel
5Q1K/Q3N3/nQr4n/1B6/Nq2PpN1/1nBpbRb1/2b1BN2/1rRqb1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 e4 f5 c4 a5 b4 d5 b6 g5 h6 a4 b7 a3 b5 d3 b6 f3 c5 d4 h7 g4 c6 f4 c7 f2 Be2 f1N Nc3 g3 Na4 g2 Bd2 a2 Qb3 Ra7 Rc1 a1B Nh3 g1B Bc3 d2 Nf2 Bf5 c8B d1Q Bd7 d3 Bb5 Na6 b8N Bc8 b7 Be7 Nd7 Nh6 b8Q Rb7 Nf6 Nd2 N6g4 Qa5 Qa7 Qb4 h3 Kg3 h4 Kg2 h5 Rg8 h8N Rg6 Rh3 Bh4 Rf3 Rc6 Ng6 Be6 Ne7 Bg3 Kf6 Rb8 Qb2 Bb3+ Kg7 Bc2 Qb3 Rb7 Kh8 Bb2 Qe6 Nb3 Qd6 Rb8+ Qd8 Rb7 Qdb6 Ba1 Nh1 Be3 Nhf2 Ng8 h6 Kg1 h7 Nh6 Kg7 Rb8 h8Q Rb7 Qf8 Bb2 Bd4 Bc3 Kh8 Be1 Bc3 Na5 Qd4 Qc5 Bc4 Rb1 Bb5 Qb4 Qdb6 Nb3
2n1b1B1/q3K1n1/1N2N3/qNQQ3q/3P1rpR/pRb2qQ1/R1NB1b2/5k1r w - - 0 1 illegal: No possible last move
K1N3kb/1QQ1B3/4rQ2/2Rq2B1/nPN2nnr/1R1p2rB/2n1bqp1/2Q4R w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 a5 Kc4 e5 Kd5 g5 h4 g3 b4 g2 c4 e4 f4 a4 f6 d6 h5 g4 c5 g3 b6 a3 b7 d3 h6 a2 c6 e3 h7 e2 c7 e1Q f5 d2 Na3 Nd7 Kc6 d5 b8Q d4 Ne2 g1N Nf4 d3 Rb1 a1N Nc4 Bd6 Ng6 Bc5 Qb7 Nc2 Bh3 g2 Ne7 Nh6 Rb3 Qf2 Qf1 d1R Bg5 Re8 h8Q Nb6 Qh7+ Kf8 f7 Ne2 Qe1 Nf4 Qe3 Ng4 Qc1 Be6 c8R Bd4 Rc7 Na4 Nc8 Nc5 Kb6 Qd5 Rc6 Rb8 Ka7 Na4+ Rc5 Bh8 Qc7 Rb7+ Ka8 Re1 Qh4 Kg7 f8B+ Kg8 f6 Re3 Be7 Rg3 Qh5 Bf7 Qh4 Bh5 f7+ Kh7 f8Q Rb6+ Ka7 Re6 Qf6 Kg8 Qb7 Rf8 Ka8 Rf7 Qe5 Rh7 Qd6 Nh2 Qb8 Be2 Qc7 Ng4 Qh6 Nh5 Qf6 Nf4 Bd6 Rh5 Be7 Rh4
nR1b1R2/1K2qN2/R2nn3/b2r3k/PQp1b2p/1BN3Qr/1B1BN1nq/4N3 w - - 0 1 illegal: No possible last move
5QbB/1b1R2r1/NK1Q2n1/b2N2RP/B1p5/np1qN1n1/3kr2B/R2bN2q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 c5 h4 g5 a4 f5 h6 b5 a5 g4 h7 f3 Ke3 f4+ Kd3 f2 h5 b3 a6 b2 a7 g3 Nf3 b4 Kc4 b3 Kb5 g2 Nc3 b1N Ne1 f3 Rg1 Nd7 Bf4+ Ne5 Bh2 Nf6 Bc4 Qd7+ Kb6 f1B Bb5 f2 Ba4 Rg8 h8B Na3 Qd2 c4 Nd1 Bb7 Ne3 Re8 a8N Be2 Nc7 f1B Na6 Bd1 Qf2 Bd3 Qf5 Ke7 d6+ Kf7 d5 Ng6 e5 Rg7 Qf3 Bb1 Qg3 Ne4 e6+ Kf6 e7 Bd3 Qf2+ Kg5 Qd2 Qh3 d7 Ng3 d8Q Kf4 d6 Bf5 d7 Be6 Qa8 Bg8 d8R Qd7 Qb4 Qd3 Rd7 Ke4 Qc8 Kf4 Qd6+ Ke4 Rf1 g1Q Rf5 Qh1 Re5+ Kf4 Rg5+ Ke4 N1g2 Kf3 Ne1+ Ke2 Qa8 Kd2 Qab8 Rc8 e8N Rc5 Nf6 Re5 Qd8 Be7 Qf8 Bd8+ Ka7 Ba5 Nfd5 Bc3 Kb6 Bb4 N3g2 Re2 Nge3 Ba5+
n1R5/BN1Q1Q1b/kBnQrR2/4NRrp/3nBK2/b3B2n/P1p1r3/5q1q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 f4 b5 d4 c5 g4 Kc7 d6+ Kb6 g5 h5 d7 h3 g6 c4 g7 b3 f6 h2 f5 b2 f7 c3 d5 c2 f6 e4 d6 b4 Bb5 b3 Qf1 Ra5 Nd2 b1Q Ngf3 b2 Ne5 Ne7 g8R Nbc6 Bd3 Nf5+ Kf4 e3 Ndc4+ Ka6 Be4 e2 Be3 e1R Qf3 Nfd4 Rf1 Be7 f8Q h1N f7 Rh6 Qg4 Qb6 d8Q Qb5 d7 Re2 Nd6 Re6 Nb7 Nf2 Qc7 Qe1 d8B b1N Qd6 Na3 Bb6 Nc4 Qfg7 Qbb1 f8B Rb5 Ba7 Nb6 Qf7 Na8 Bh6 Bd7 Rc8 Be8 Qgf5 Bf8 Qfd7 Bg6 Qff7 Bh7 Bg5 Qbc1 Bd8 Qcd1 Bdb6 Rd5 Rg1 Qf1 Rg6 Qh1 Rb1 Qdf1 Rb5 Be7 Rf6 Rc5 Ng6 Rg5 Rbf5 Bf8 Ne5 Be7 Q6c7 Ba3 Qcd6 Nh3#
b3qR1B/3B2qN/5RQb/K2n1r1p/Ppk3rb/Q4RQ1/1Q1q1N2/1n3Nq1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 g4 c5 f4 b5 a4 e5 f6 h5 f7 c4 f5 e4 f6 b3 Kc3 h3 Kb4 e3 g5 e2 g6 e1B+ Nd2 b2 g7 b1Q+ Bb2 c3 Qb3 c2 Ra3 c1Q Qg3+ Kd7+ d6 Kc6 d5+ Kb6 Rf3 h2 Nh3 Qa1 Nf2 Nd7 Bh3 Ne7 g8Q Nc5 d7 Nb3 d6 Qe8 d8R Bh6 f8N Bb7 d7 Ra5 f7 Ba8 Rf1 h1Q Nh7 Qg1 f8Q Qd1 Q8g5 Rg8 Bh8 Qg7 Q5g4 Kc6 Qg6+ Kd5 Rc8 Qc2 Rc6 Qd1 Rcf6 Kd4 d8Q+ Nd5+ Ka3 Qde2 Bd7 Qd3 Qdb8 Kc3 Nc4 Nd2 Ne3 Qe2 Qe7 Kd4 Qf8 Nb1+ Kb3 Qd2 Qa3 Ra6 Rf8 Rf6 Qb7 Rf4 Rf6 Rf8 Qb8 Rg4 Qb7 Ndc3 Kb4 Rf7 Ka5 b4 Qbe4+ Kc5 Qee5+ Nd5 Qeb2 Re7 Nfd1 Re5 R1f2 Rf5 Nf1 Kc4 Rf8 Rfg5 R3f6 Rf5 Rf3 Qe5 Qh3 Bg3 Nf2 Bh4 Qg3 Qe8
QR1rB3/5Q2/3kn1NR/n4bp1/3bP1R1/4qK2/pBN1Nbrb/B1r1N1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 a5 e4 g5 h4 c5 b4 f5 d6+ Ke6 d7 c4 h5 a4 d5+ Kd6 h6 f3 b6 a3 b7 f4 h7 a2 b5 c3 b6 c2 Bb2 c1B Qb3 Nf6 Nc3 Ne8 Bb5 Ng7 Nce2 Ne6 Rh6 Nc6 b8R Bg7 b7 Na5 Bc6 Rf8 h8N Bc3 Ng6 g3+ Kf1 f2 Kg2 f1R Nf3 Bh8 Ne1 Bd4 Ba4 Rg1+ Kf3 g2 Rb1 Bce3 Qc4 Qe8 d8N Qd7 Nc6 Rd8 Nb4 Bf2 Nbc2 Ra6 Rd1 Rb6 Ba1 Rb1 Rd3 Rc1 Rd2 Qc7 Be8 Qc5 Rd3 Qb4 Re3 Qd2 Qb3 Kc5 d6 Bd7 Bb2 Bc8 d7 Kd6 Kg4 f3 Ba1 Nf4 Qf7 Ne6 Bb2 Bg3 Rc3 f2 Re3 Bf4 Rg3 f1Q Ba1 Bf2 Kf3 B4e3 Rg4 Bd4 Bb2 Rh1 Ra8 g1B Ba1 Rh2 b8Q+ Nc7 Qb7 Rg2 Rb8 Bh2 Qa8 Qg1 Bb2 Ba6 Ba1 Bc4 Bb2 Be6 Ba1 Bf5 Bb2 Rc8 d8B Ne6 Bf6 Rd8 Ba1 Ba7 Bfc3 Bad4 Bcb2 Qe3+
QQ2Kq1q/3BR1rB/Rnq1NR2/2Q2P2/bn3pb1/1k1BB3/qrp4b/6N1 w - - 0 1 illegal: No possible last move, all moves rejected
2k1K1nn/4r3/qRq5/1bB2pR1/1qBR3P/b1B1N3/qQ1p1BrN/4QbQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 Kd7 b4 f5 c4 g5 e4 a5 h4 g4 h6 g3 c5 g2 h7 f3 b6 f2 c6+ Ke6 b5 a4 c7 Kd7 e5 a3 e6+ Kd6 e7 Kd7 e8Q+ Kd6 b7 a2 b6 Ra4 Qee1 Kd7 Nc3 Qe7 Be3 Ra7 Nf3 g1Q Rb1 a1Q Nh2 Qg6 Rg1 Qb4 Rg5 Nc6 b8B Qa2 b7 Nd8 Qc1 Be7 Nd1 Nf7 Be2 f1Q Bf2 Qc6 Ne3 Bf8 Qb2 Bd6 Rd1 Bc5 Kc2 Bf8+ Bc4 d3+ Kc1 d2+ Kc2 Qe2 Qg1 d4 Qe1 Qef3 Kd3 Qca6 Qg1 Qfc6 Qe1 Ra8 Ba7 Be7 Bb6 Ra7 Bc5 Bf8 b8Q Bb7 Rb1 d1B c8R Ba4 Qg3 Bb5 Qgg1 Ba8 Re8 Rb7 Re4 Kc8 Rf4 Rd7 Rfg4 Ngh6 Rf4 Rg8 h8B Bb7 Be5 Nh8 Ng2 Qba4 Qb3 N6f7 Rh5 Nh6 Ba7 Ba3 Ne3 Rgg7 Bb6 Ng8 Bc5 Q4a5 Qbc3 Ba4 Rb6 Bb5 Qb2 Qb4 Re4 Rg4 Rg5 Rg3 Ke2 Rg4 Kf3 d3 Bc3 Rg3+ Kf4 d2 Ke5 Qh6 Rd4 Bg2 Rbg6 Bf1 Rb6 Qh7 Ke6 Rg2 Rg7 Qh5 Rg6 Qf3 Rg5 Ne7 Kf6 Qc6+ Kg7 Ng8+ Kf8 Bd3 Ke8 Be2 Nhg4 Bf1 Nh2 Re7+
3q1B2/1K4N1/1bQ2qq1/n1Rp3b/N1r2Qn1/4PpqB/N3QbBR/2N3kr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 h4 g5 h6 a5 h5 g4 b6 f6 b5 g3 b7 a4 b6 f3 h7 a3 h6 d3 e3 a2 Rh2 d6 Qe2 f2 Nc3 g2 Na4 Ra5 Ba3 Nd7 b8N Rc5 Rc1 a1Q b7 Qb1 Na6 Rc7 b8Q d5+ Kf5 Bg7 Ke6 f5 Kd6 f4 Nb4 Bd4 Na2 Ngf6 Qa8 Rc5 Qc6 Ng4 Bb4 Bc3 Ba3 Ba5 c3 Bb6 Rc2 Kb3 c4 d2 Rc1 d1Q Rc2 Rf8 h8Q Qe1 Qf6 Rh8 h7 f3 Qf4 Qc3 Nh3 g1B Ng5 Qcf6+ Ne6 Qe1 Bg2 f1Q Bb4 Qg3 Ba3 Qb1 Rc1 Rb5 c5 Rb4 Rc2 Rc4 Bb4 Rf8 h8N Bf2 Nf7 Rh8 Ne5 Rh4 Rc1 Qbg6 Nd3 Rh7 Qc7 Rh4 c6 Nc5+ Qd7 Rh6 c7 Rh8 Kc6 Rh4 Qdd6 Rh8 Ng7 Be6 c8B Bf7 Rch1 Rh7 Qe1 Kc2 Ndc1 Nb3+ Kb7 Rh5 Bc5 Rh4 Qf1 Kd2 Qc6 Be8 Bf8 Rh5 Rh4 Rh6 R1h2 Rh8 Qd3+ Ke1 Bh1 Rh5 Qd2+ Kf1 Bg2+ Kg1 Qe2 Rh7 Be6 Qh6 Bd7 Bh5 Bc8 Qhg6 Be6 Ne5 Beh3 Ng4 Qd4 Ne5 Bg4 Rb4 R2h3 Rh6 Bc8 Rh8 Rf4 Bg4 Qe4 Rh4 Qf5 Bh5 Rc4 Qh2 Be6 Qhg3 Rc5 Rbc4 Qf4 Q3g4 Rg3 Rh1 Rh3 Q4g5 Rh2 Qg3 Beh3 Ng4 Qe4 Qgg5 Qf5 Qgg6 Qf4 Na5+
4NBN1/nR4Q1/R7/2rpqp1Q/5q1b/3K1n1r/1bR1BBPn/1kn1BN1b w - - 0 1 illegal: No proof kernel
1KR5/Nb3QB1/1k2BbB1/2pqRr2/P3RnQq/R3p1n1/5b1r/3b1QnN w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 b5 d4 h5 f4 e6 a4 h4 g4 e3 d6+ Kb7 g6 h3 d5 b3 d7 h2 d6 e2 g7 e1B g5 b2 g6 b4 f5 b3 f6 Ne7 g8B Rh4 f7 Ra7 g7 Rh8 Bd3 Nf5 Nc3 b1N Bb2 Ng3 Nb5 Kb6 Ra3 Nc3 Ne2 Nd5 Bg6 Qh4 d8R Bf2 d7 Be7 f8Q Bf6+ Kd6 e5 Re8 e4 d8R e3 Be6 Nf4 g8Q Rf7 Na7 Nc6 Qf1 Bb7 Rc8 Nd4 Qe7 Rf8 Qef7 Nf3 Rg1 h1Q Qgg7 Ngh5 Rg5 Ng1 Re5 Ng3 Bc3 b2 Re7 Ngh5 Ng3 b1B Bb2 Qe4 Nh1 Bc2 Qgg8 Ng3 Kd7 Ka5 Kc7 Bd1 Kb8 Qd5 Bc3+ Kb6 Re4 Bg5 Bg7 Rh6 Bd7 Rh5 R7e5 Bf6 Be6 Rf5 Qh8 Rg8 Qh5 Rh8 Qhe2 Qg5 Qf3 Rh2 Qg4 Qh4
2qr4/Q1b3BK/BNR1B1q1/2pR2Pn/2Q1N1nk/1p4r1/n4Nn1/Qbr1B3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 a4 e5 f4+ Kh6 d4 b5 g4 c5 g5+ Kg7 f6+ Kg6 f7 h5 f5+ Kh7 a5 h3 f6 Kg6 d6 h2 d7 h4 d5 h3 a6 b3 a7 b2 d6 b4 Nd2 b1R Ra6 b3 Rc6 Rh7 Ba6 Nh6 Bb2 Bb7 Bc3 Qc8 d8Q Ng4 d7 Kh5 Kf5 e4 Qc7 e3 Ne4 e2 Be1 Bd6 f8N Rc1 f7 Be5 Qa5 Bc7 Qd5 Rh6 Qa1 Rd6 Qe6 Rd3 d8Q Rg3 Qdd7 Kh4 Kg6 Rc4 Bf2 e1N Kh7 Ng2 Be1 Rc2 Qc4 Rc1 Rd6 Nc6 Rd5 Rb8 a8B Nb4 Qda4 Bc6 Nd7 Na2 Nb6 Be8 f8B Bg6+ Kh8 Bh7 Bc6 Bf5 Bd7 Bg6 Be6 Bf5 Nf2 Bb1 Ne2 Ra8 Rf1 h1Q Nc3 h2 Nce4 Qg1 Kh7 h1N Bg7 Rb8 Nh3 Qf2 Qa3 Qf7 Rf6 Ra8 Nf2 Rb8 Rd8 Qg6+ Kh8 Bd3 Bd5 Rh3 Rc6 Qcf5 Bb7 Bb1 Qa7 Ng3 Ba6 Nh5 Kg8 Qd7 Be6 Rg3 Kh8 Qf6 Kh7 Rc8 Rf8 Rd8 Rf7 Qc8 Rd7 Qf7 Rd5 Qg6+
8/2n2bq1/KQn1k1BB/1p6/Nrb2Qr1/Qb1Bn1p1/RBRNq1P1/3n2N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 e5 Nc3 exf4 Nb1 d5 cxd5 g4 Nf3 Be7 Ng1 Bg5 hxg5 Bd7 Bb2 Bf5 Bc1 Bc8 a4 Ke7 e4 b5 Ke2 c5 Kd3 h5 e5 f5 g6 g3 d6+ Ke6 d7 b3 a5 f3 g7 b2 a6 f4 a7 f2 Be2 f1B Qa4 h4 Qb4 h3 Ra2 h2 Qa3 f3 Kc3 f2 d4 c4 Kb4 c3 Bd3 c2 Nd2 b1B Bb2 Qe7+ Ka5 c1Q d8Q Nf6 g8Q+ Qf7 Qc7 Ne8 Qg5 Qc4 Qf4 Rg8 Qcc5 Bd7 Qb6+ Nc6+ Ka6 Rc8 a8N Bc2 Qh6+ Qf6 Qf4 Rg4 d5+ Kf7 d6 Ke6 Qb8 Bb3 Nb6 Qg7 Na4 Be2 Qb6 f1N Bc1 Ne3 Bb2 Kd5 e6 Nc7+ Kb7 Ra8 e7 Be8 d7 Ke6 d8B Bf7 e8B Bf1 Bg5 Ra5 Bh7 Qe2 Bd3 Ra8 Bh6 Rd8 Bb1 Rd4 Bh7 Rb4 Bd3 Bg8 Beg6 Bf7 Nh3 Na8 Rg1 h1N Ka6 Nf2 Rh1 Nfd1 Ng1 Qf6 Rh5 Qg7 Rc5 Nc7+ Kb7 Qf3 Rc2 Be2 Bde4 Bec4 Bd3 Ne8 Ka6 Qf1 Ngf3 Qe2 Ng1 Nc7+
q1B5/3Bk3/b1rRr3/qpBQ1qN1/1rpn1B2/1P6/2RNNb2/nKq1Q2Q w - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 Qc2 a3 Qb2 axb2 Kd1 e5 Kc2 h5 g4 c5 a4 b5 f4 c4 d4 h3 a5 h2 f6 e4 a6 e3 f7+ Ke7 d6+ Kf6 a7 h4 f5 h3 g5+ Kg7 d7 e2 d5 e1Q f6+ Kg6 d6 Qe2+ Nd2 b1R Ra2 Qh5 Ne2 Qa5 d8N Nh6 d7 Na6 Ne6 Nf5 d8Q Bc5 f8B Kf7 Qd5 Bf2 Bc5 Rh6 g6+ Ke8 Rg1 h1Q g7 h2 g8B Qh3 Rg6 Nb4+ Kd1 Nd4 Ng5 Ba6 Rc2 Qg1 Be6 h1Q Bc8 Qf5 Bd7+ Kd8 f7 Rb2 Rd6 Ke7 Bc8 Re6 Bd7 Rc8 a8Q Rc6 Qh8 Qhg2 Qh1 Ra2 Bc8 Q1h2 Bd7 Qgf3 Bh3 Ra4 Bg4 Qh8 Bc8 Qc3 Bh3 Qe8 Bd7 Qb2 f8Q+ Kd8 Qh8 Ke7 Qe1 Qa8 Bg4 Qa3 Qhh1 Qe5 Nf1 Qf5 Bf4 Qf6 Nd2 Qf5 Rb2 Nbc2 Kc1 Rb4 Kb1 Na1+ Rc2 Bh4 Bh5 Bg3 Bhe8 Bh4 Bc8 Bf2 Bed7 Qc1+
r1k1q1Rq/3n1NR1/8/pK3r1Q/rP4bR/b1N2qqn/B2Q1R1p/2NB2B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 c5 Ke2 h5 Kd3 a5 Kc4 f5 g4 h3 d4 h4 g5 f3 g6 f2 d6 h2 e5 f4 b6 h3 b7 f3 d5 Qg5 e6+ Kd8 g7 Ne7 g8B Rh5 d7 Ng6 Ne2 Bh6 Qd2 Qg3 Kb5 c4 Nbc3 Rf5 Ra2 Nf4 e7+ Kc7 d8N Nd7 Bg2 f1R e8Q f2 b8R Bg7 Bb2 Ra1 Bf3 f1Q Nf7 Bd4 Rg1 h1Q Nc1 h2 Bh5 Qfh3 Bd1 Qh8 Qee2 Be3 Qh5 Qhf3 Rb6 Nh3 Rh6 Bf4 Rg2 Be5 d6+ Kb8 Rf2 Kb7 Ra3 Kb8 Rb3 Ra4 Rh7 Kb7 Rg7 Kb8 Nb1 Kb7 Bd4 c3 Be3 c2 Nc3 Nf6 d7 Kb8 d8R Nd7 Nd3 c1Q Bb6 Qb1 Nc1 Qbe4 Bc5 Bf4 Re8 Qee3 Re4 Bh6 Rh4 Qe8 Rb2 Bf4 Rg2 Be5 Bg1 Kc7 Nd8 Kb8 Ba2 Kc7 Rc2 Kb8 Nf7 Kb7 Nd5 Bb2 Rf2 Kb8 Rc5 Ba3 Nc3 Bb7 Re5 Kc8 Rg8 Bd5 Rg7 Be6 Rg8 Rf4 Reg5 Bg4 R5g7 Rf5+
1BNq2B1/qB3N2/3B1bbn/p2Qr2P/3q1RN1/3r1K2/p2k1nQr/RR5r w - - 0 1 illegal: No possible last move, all moves rejected
Q1qNK2N/1Q4R1/n2B1b2/p2P1BQ1/2n1NRRr/2qN2bk/b2p2b1/1q5r w - - 0 1 illegal: No proof kernel
3BB1b1/1N2r1n1/2qQNqnr/p1P3Q1/3n1BK1/1B5R/pNQ2bkn/1R1q4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 cxd4 Ke2 Kf7 Kf3 d5 b4 h5 c4 a5 g4 e5 f6 Ke6 c5 a3 g6 d3 g7 a2 f7 h4 b5 d2 g5 Kf5 g6 d4 b6 h3 b7 d3 Ne2 h2 Nf4 Qf6 Na3 Nc6 b8N Be7 f8B Rh6 Qc2 d1N Rb1 Be6 Nc4 Ra7 Nb2 e4+ Kg3 d2 Bb5 Nd4 Be8 Bd6 Be7 Ne3 Bd8 d1Q Nc6 Ne7 g8B Bb8 g7 Ng6 Bgf7 Re7 g8Q Bc7 Na7 Bb8 Nc8 Kg5 Nd6 Nef5+ Kg2 Kg4 Nb7 Bb3 Ne6 e3 f4 Ng7 f5 e2 Bf4 e1N+ Kf2 Kh3 Ke3 Qh4 f6 Nef3 Ke4 Ne2 Ke3 Kg2 Ke4 Be5 Ke3 Bd4+ Ke4 Nh5 Kf5 Bf2 Qg7 Bc4 Bg8 Bd5 f7 Qf6+ Kg4 Ned4 f8Q Bb3 Re1 h1Q Re3 Rf7 Qd6 Re7 Qf8 Ng7 Qf7 Nh8 Qh5 Ng6 Rc3 Qhf1 Qg5 Qb5 Nc7 Qa4 Bc4 Qc6 Ne6 Ba4 Rd3 Bb5 Bb3 Bc4 Re3 Bd5 Re1 Bc4 Rh1 Bd5 Rh3 Bc4 Nf8 Bg8 Ne6 Nh2#
2n4q/1b1BNq1n/5rNp/1Q2n3/2B1bK2/3rB3/1nkbPpN1/Q3RQRN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 g4 Ke5 b4 Kd4 d6 f5 d3 c5 g5 a5 d7 h3 g6 a4 b6 c4 b5 h2 b7 a3 g7 a2 b6 c3 Qc2 h6 Qd1 c2 Na3 Kc3 d4 Bb4 d5 Qe8 d8N Ne7 g8B Nbc6 b8N Qf7 b7 Ra6 Be3 c1N d6 Nd3 d7 Nb2 Nh3 Rh7 Rb1 a1Q Rg1 h1B+ Bg2 Rh8 Qf1 Kb3 Nc2 Bd2 Ne6 Ne5+ Kf2 f3 Kg3 f2 d8Q Rd6 Ne1 Rd3 Bc6 Be4 Ng2 Kc2 Qd4 f4+ Kh4 f3 Kg3 Bd7 Nf8 Nc8 Ng6 Bdf5 Kf4 Qa8 Bd7 Rh7 Qe1 f1N Nf2 Ng3 Nh1 f2 Qf1 Bc6 Rd1 Ne4 Re1 Ng5 Qa7 Bce4 Qa1 Rh8 Nc6 Nh7 b8Q Bd5 Nce7 Bb7 Nd5 Qe8 Bf7 Rf8 Bfe6 Rf6 Nde7 Qa7 Ba2 Qh8 Bc4 Qa2 Ba6 Qf7 Bc4 Bf3 Qb6 Bb7 Qb5 Bfe4+
2N1NRQ1/8/1b2K1qp/k1BrNnRB/5QR1/n1r1b1bP/2R2p1n/4qb1Q w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 g4 Kc7 d4 f5 c4 e5 c6 Kb6 g5 a5 g6 a4 g7 e3+ Kf3 a3 c5+ Ka5 d5 e2 d6 e1Q b6 a2 d7 h6 h3 Ne7 g8Q Ba6 c7 Qe8 d8R Qg6 c8R Nbc6 b7 Na7 b8Q Nb5 c6 Na3 c7 Bg7 Bg2 Bf1 Nd2 Ra6 Rb1 a1B Ne4 Bd4 Rf8 Rc6 Be3 Bb6 Nf6 Rc3 Ne8 Bf6 Rb2 Bg5 Rc2 Rh7 Rd8 Rf7 c8N Rf6 Rf7 Rd6 Rg7 Rd5 Rh2 Bh4 Bh1 Bf2 Rg2 Bg3 Qd3 Bf2 Bc5 Be3 Qd4 Bb5 Rg5 e4+ Kg2 Be2 Qb7 f3+ Kh2 f2 Kg3 Bf1 Bf3 f4+ Kg4 Nf5 Be2 Qa1 Nf3 Qe1 Ne5 f3 Qc4 Bd2 Qc6 e3 Qf4 Bc1 Bd1 e2 Qce6 Nd4 Ned6 Qh7 Nd7 Bg2 Re5 f1N Rf8 Rd3 Ne8 Rc3 Rh5 Bd2 Qee4 Be3 Rgg5 Qg6 Rh4 Qf2 Ne5 e1B Be2 Qg1 Bd1 Bg3 Be2 f2 Bd1 Nd2 Bf3 Qa1 Be2 Bf1 Qh1 N2f3 Bd1 Qg7 Be2 Qe1 Bd1 Ne6 Kf5 Nh2 Bh5 Qh7+ Kf6 Nd4 Rhg4 Nf5 Ke6 Qg6+
Kq3Q1b/N4r1r/R3bQ1p/RBp2B1P/RN1b1n2/2k1qQ2/8/nR3Bnb w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 Kb2 Kd7 Kc3 Kd6 Kc4 Ke5 d4+ Ke4 g4 c5 h4 a5 g5 f5 h5 h6 b6 a4 Kb5 f3 d6 f4 b7 a3 g6 a2 g7 Qg5 Kb6 Ra3 d7 Be7 d8Q Qf5 b4 Rd3 Ka7 Qh7 d5 Kd4 e4 Bh3 d6 Bh4 d7 Nc6+ Ka8 Qg6 b8R Nge7 g8B Ne5 b5 Be6 b6 Rh7 b7 Nd5 Na3 Qe8 Qf6 Kc3 d8Q Bg3 Rb1 a1B Nh3 Bh2 Qde7 Bg1 Qef8 Rd2 Rd8 Rb2 b8R Rbb7 Rdc8 Rbf7 R8b6 Qd8 Ra6 Qe7 Bc4 f1N Nf2 Nfe3 Rh4 Nc2 Nd3 f2 Qf3 f1Q Nb4+ Be3 Bd3 Bd4 Rcc6 Qh1 Ra5 Qh2 Rca6 Bb2 Rg4 Na1 Rh4 Qg3 Rg4 Qd6 Rh4 Qe1 Bf1+ Qe3 Nb5+ Kb3 Qe2 f3 Na7 f2 Qef3 Nf4 Rg4 Kc3 Rh4 Ned3 e5 Nc1 Rg4 Nce2 Rh4 Ba2 e6 Ng1 e7 Be6 e8B Qb6 Beb5 Qd6 Bfd3 f1B Bf5 Bg2 Rg4 Bh1 Bf1 Rfg7 Bf7 Qc7 Be8 Rf7 Beb5 Kd2 Qg6 Bh8 Qf6 Bd4 Rg2+ Kc3 Rga2 Qb6 R2a4 Qb8+
1B1Q1B1N/2q1qb1Q/B2bb2p/RP5Q/1N3R2/p1Qn4/1rr1n1Kr/Nbk5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b6 Kd7 Kf2 Kd6 b4 Ke5 g4 Ke4 d4 a5 d6 c5 d7 f5 b7 f3 g5 a4 g6 h3 e3 h2 d5 h6 g7 a3 d6 f4 Qe1 c4 Nh3 c3 Ba6 c2 Bb2 Ne7 g8Q c1Q Bg7 Ng6 Qh7 Nc6 b5 Kd3 e4 Kc2 e5 Nb4 e6 Rg8 e7 Rb8 Rf1 h1R e8Q Rh2+ Kg1 Qf6 d8N Qe6 d7 Bd6 Qe5 Qe7 Nf7 Ra8 Rd1 f2+ Kf1 Ra7 d8Q Be6 b8B Rc7 Bf8 Rc3 Nd2 Rb3 Bc7 Rb2 Nh8 Rg7 Bb8 Rg8 Ke2 f3+ Ke3 Rg7 Nf4 Rf7 Nd3 Nf4 Re1 Rf5 Qd4 Rc5 Qh5 Rc8 Rg1 Ne2 Rg4 Bf7+ Qde5 f1B Rd4 f2 Kf3 Rc5 Nb3 Bh3 Rg4 Rc4 Rb1 Kd1 Na1 Kd2 Qc5 Qc3 Rd4 Bhe6 Rg1 Qc2 Rgg4 Kd1 Rgf4 Qc1 Ne5+ Nd3 Nc6 Qc3 Qb4 Kc1 Qba5 Rc5 Ra4 Rc4 Qac7 Qa5 Nb4 Rcc2 Qc3 Qac7 Qg8 Ba2 Qgg6 f1B Ra5 Bh3 Qgg7 Bhe6 Qh7 Rh3+ Kg2 Bb1 Qb3 Rh4 Qc3 Rh2+
B1q3Nr/1RKB2QQ/4b1Pq/2N1R2p/2pbBk1q/n2r1b2/N2q1n2/B5R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 a5 g4 h5 b4 f3 d5 f2 g6 c3 b6 a4 g7 c4 b5 f6 g5 c2 b7 a3 g6 a2 b6 Qc7 Qd4 Qd7 Bg2 f1B Bb2 c1Q Nd2 Be7 Nb3 Qe1 Nc5 Na6 b8R Qa5 b7 Nh6 g8B Qad8 Re1 Nb4 Ba1 Kc7 d6+ Kb6 Bd5 f5+ Ke5 f4 e4 f3 Ne2 f2 Nc3 Be2 Rhg1 f1Q Bh1 Qg4 d7 Bf6+ Kd6 Qh4 e5 Ng4 e6 Qg2 e7 Nc2 e8B Bf3 Re5 Na3 Be4 Qd2 Bg2 Bg7 Bh1 Q8g5 d8N Nf2 Nf7 Be6 Nh6 Bf6 Ng8 Qh6 Bd7 Ra6 Bb2 a1Q Na2 Qf1 Ba1 Qfh3 Bc8 Kb5+ Kc7 Rd6 Qc3 Rd3 Qd4 Qf5 Qd7+ Ka5 Qh7 Qfg4 Bd7 Bg7 Rg5 Bd4 Re5 Qf5 Re8 Qff8 Re7 Qa8 b8Q Qa6 Qf8 Qc8+ Kd6 Kb6 Qfg7 Ka5 Nc3 Kb4 Ba8 Be2 Bhe4 Bf3 Nb7 Kb3 Na2 Kc2 Rf7 Qf6 Nc5 Qh4 Rgg5 Kd1 Rg1+ Ke2 Re7 Qf8 Kc7 Ke3 Re8 Kf4 Rb8 Qe8 Rb7 Qc8+
R3B2Q/q3R1K1/3q2P1/pn6/1nNQB3/3n1b2/bR2pb1B/NBrbk1rN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 c4+ Kd6 c5+ Kd5 g6 e5 g7 d6 b6 d3 Ke3 Kc4 g5 d5 c6 h4 c7 h3 f5 a6 b7 h2 g6 Rh5 b5 Nf6 g8B Qd7 b6 Rg5 Nd2+ Kc3 Nb3 d2 Bf7 Nc6 b8Q Bd6 b7 Na7 Bg2 Nb5 Nh3 a5 Re1 h1Q Be8 Qh2 Nf2 Qe7 Ra3 Be6 c8B Qd7 Qg4 d1B Nh1 Bf3 Ra2 Qhh7 Na1 d4+ Kf2 e3+ Kg3 e2 Rb2 e4+ Bf4 Qhg7 Kh4 d3 Bh2 Nd5 f6 d2 f7 d1B f8R e3 Qf4 Rg4+ Kh5 Nb4 Qe4 Qd4 Kh6 Qa7 Rg8 Qd8 Kg7 Ba2 Bf5 Bc5 Qd5 Rg3 Bb1 Qd6 Qd8 Rc8 Qh4 Qa8 b8N Qa7+ Nd7 Rg5 Qh8 Rc7 Bh3 Rg1 Bhf5 Rc6 Bfc2 Bd4+ Qe5 Kd2 Be4+ Rc2 Bf7 Bc5 Ra8 Bb6 Be8 Bd4 Rf1 e1N Qf6 Bb6 Qd4+ Ned3 Rf2+ e2 Rf1 Bg4 Rf7 Ke1 Ne5 Rc1 Re7 Bf3 Nc4 Bc5 Qe5 Be3 Qd4 Bf2
1k1n2b1/8/1B1brP1r/1B1n2pB/1Nqq2RK/1pR3N1/n1n2N1Q/1Qq1N2R w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 d4 b5 a4 e5 f4 c5 Kf2 Kc7 Kg3 g6 d6+ Kb7 a5 c4 d5 c3 f6 c2 d7 e4 f7 b3 h5 e3 h6 b2 d6 e2 f5 e1N f6 b4 h7 b3 a6+ Ka7 Kh4 g3 Bb5 g2 Ra4 Nc6 Nh3 g1N Nd2 b1Q Rg4 Qa2 Nf2 Bh6 f8R Qe8 d8N Ne2 d7 Qe4 Ne6 Qa1 d8N Qed4 Nf1 Nc3 Ng5 Qc4 Be3+ Kb8 Ng3 c1Q Nf3 Na2 Bb6 Nc2 Ne1 Nge7 Qd3 Be6 a7+ Kc8 Qf5 Qad4 Rg8 Rb8 a8B Nd5 Rg7 Re8 h8Q Bf4 Qhh5 Rb7 Rc7+ Kb8 Qd3 Bd6 Qh8 Nc2b4 Qb1 Bg8 Qh6 Re6 Qh8 Nce7 Rc5 Nc2 Nc6+ Kc8 Nb4+ Nc6 Qh7 Kb8 Qh5 Nd8 Qh6 Qcd3 Rc3 Rh7 Bac6 Q3e4 Be2 Qc4 Bb5 Qe5 Re4 Rh8 Bh5 Qed4 Qd2 Rh6 Rg4 Qf1 Nd1 Qfd3 Qh2 Q3c4 Nf2 g5+
q1Br3r/1Bb4n/1K3P1r/p2B4/1n1Rb1NR/BRr2b1q/k3p3/2QQ2NQ w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 a5 Kc4 h5 Kc5 d5 b4 d3 f4 d4 g4 h3 c4 h2 b6 h4 f6 Ke6 f5+ Ke5 g5 d2 b5 h3 f7 d3 f6 Nc6 b7 Nb4 b8R Bf5 g6 Be4 b6 Nh6 b7 e6+ Kb5 Kd4 c5 e5 c6 Bd6 f8Q Bc7 g7 Nf7 g8B Ng5 Bd5 Nh7 Na3 Kc3 Nc4 Qe8 Rd8 Rc8 Ba3 Qh5 Qc1+ Kb3 b8Q d1R Qa8 d2 Rb1+ Ka2 Rb3 Qg4 Rd6 Rd8 Qe8 Qc8 Qb7 Qa8 Qh5 Re1 Qg4 d1B Bg2 Bdf3 Ne3 Rd1 Qh5 Rd3 Ng4 Rc3 Rd7 Bf5 Rd6 e4 Rd7 e3 Rd6 Bb6 c7 B5e4 c8B e2 Qd7 Bc7 Bdb7 Rc4 Rd4 Rc6 Qhh6 Rc3 Qd5 Nc2 Qd1 Nb4 Qhc1 Bc2 Qe6 Bd5 Qc6 Bb1 Nf3 Bf5 Rf1 h1Q Rf2 h2 Ng1 Bg6 Rf3 Bb1 Rh3 Bg6 Bf3 Qg2 Rh5 h1R Rh6 Rh5 Be4 Qh3 Bf3 Rf5 Rh4 Rh5 Be4 Rh6 Bh1 Be6 Qg2 Bef5 Qh2 Bb1 Bhd5 Bbc2 Qh1 Bce4 Ne3 Bf3 Ng4 Bb8 Kb6 Bge4 Qf4 Be5 Qfc1 Bc7+
n2Kbq1q/1R4r1/4p1Bb/R3N1kq/N2BQ2p/N4QqP/R2n4/Q2n1R1r w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 fxg4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 c4 a5 d4 e6 c6 h4 c7 a4 c5 g6 h3 a3 d5 g3 c6 e3 b6 g2 d6 e2 b7 e1Q d7 a2 Bb2+ Qc3 Na3 Ne7 Nf3 g1Q Bd3 Rg8 Ne5 Qg2 Rf1 Qb4+ Bd4 Qe8 d8Q Rg7 Qd5 Na6 b8R Bd7 c8N Nf5 c7 Ne3 Rb7 Qg3+ Ke4 g5 f4 g4 f5 Kg5 f6 Bb5 Nb6 Qh5 c8R Nc7 f7 Be8 Na4 Ra6 Qb1 Na8 Rc5 Nd1 Ra5 Rc6 Qb2 Rc2 Qc6 Rh2 Qbc3 Rh1 Bb1 Bd6 f8Q Bc7 Qff3 Qf8 Kd3 Bd6 Kc4 Bb4 Qb2 Bd2 Kb5 Bc1 Bg6 Bf4 Rc1 a1Q Rc2 Rd7 Qe3 Qg1 Nec4 g3 Qef3 Kh6+ Bc5 Qf2 Qb1 Qah8 Ne5 Rg7 Ra2 Qh2 Bd4 g2 Qc3 g1N Qba1 Nf3 Qe3 Ng5 Qf3 Ne4 Ka6 Nd2 Qce4 Qg2 Ka7 Qg3 Kb8 Kg5 Kc8 Kf6 Bf5 Be3 Kd8 Bh6 Bg6+ Kg5
5Bq1/b2b1Bn1/3rp3/Qb1R2Qb/r1PnkNB1/1Nq1pR1r/1K6/1N2QB2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 b4 Ke6 g4 Ke5 f4+ Kd5 c4+ Kd6 Kc2 a5 g6 h5 g7 d3+ Kb2 e3 f5 Ke5 b6 d5 b7 d4 b5 a4 b6 h4 f6 h3 g5 h2 f7 d2 g6 d3 Nf3+ Kf4 Qe1 d1B Nd4 d2 Nb3 Nh6 g8B Ke4 g7 Nc6 b8Q Bh5 b7 d1R Qc7 Nd4 b8Q Bd7 Qb5 Nhf5 Qca5 e6 Bh7 Qe8 g8B Bc5 f8N Ba7 Ng6 Ng7 Bf7 Qg8 Qg5 Bb5 Rg1 h1B Rg3 Bg2 Rf3 a3+ Kc3 a2 Ba3 Bd7 Kb2 Bh1 Bf8 Rd3 Rf5 B1f3 Nf4 Bd1 Nc1 B1a4 Nb3 Bab5 Bhg6 Nf3 Bh7 Rd6 Bhg6 Nd4 Rd5+ Kf3 Bf5 Rh7 Bg4+ Ke4 Na3 Rh6 Rd1 Rh8 Nb1 a1Q+ Kc1 Bg6 Rd2 Rh3 Rf2 Bh5 Rf3 Bb6 Qa3 Ra4 Qab4 Ba7 Qa5 Nc6 Kc2 Qa3 Kc3 Qb4+ Kc2 Nd4+ Kb2 Qc3+
1nN5/1BB3Br/1rN1pnk1/1RKn1qp1/3rN3/1Qb2b2/Q1P2QB1/R1nq4 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Ke3 d5 Kd4 a5 h4 g5 f4 g3 b4 g2 h5 e3 b6 e2 c6 e1R b5 a4 b7 a3 f5 a2 b6 e6 h6 Nd7 b8N Qe8 f6 Bg7 h7 Ra6 c7 Qd8 b7 Bf8 Ne2 g1N Nec3 Be7 Na3 Bb4 Bf4 Nh3 Qb1 Rb6 Nab5 Kg6 f7 Ngf6 Nc6 Nb8 Nd6 Qf8 Nce4 Bc3+ Kc5 d4 Bg2 d3 Bh2 Bd7 c8B d2 Qb2 Re3 Rhb1 d1Q Qa3 Be8 Rb5 Rd3 Be5 Nf4 Qa7 Qe7 f8Q N4d5 Qa6 Rd4 Bh2 Rg8 h8B Qf7 Bg7 Rh8 Qa5 Rh7 Be5 Ng8 Qa7 Qff1 Qf2 Ngf6 Qf5+ Kh5 Ra5 Rb2 Rb1 a1N Ra3 Qf4 Ra6 Qfg4 Qf2 Qf5 Rb6 Rb3 Qa2 Bg6 Na5 Nc6 b8Q Rb2 Ba6 Rbb4 Nc8 Rb2 Qb7 Nb8 Nc6 Bf7 Bc7 Nb3+ Kb5 Bg6 Ra1 Nc1+ Kc5 Rbb4 Qa7 Bf7 Qb3 Be8 Bb7 Bf7 Rba6 Rb6 R6a5 Be8 Rb5 Bg6 Bh8 Kh6 Qa8 Bh5 Bg7+ Kg6 Qaa2 Bf3
5BN1/1n3q1K/1k2ppBR/3PN3/1BbnN2n/2nQ4/QBbb1R1r/1rq3R1 w - - 0 1 illegal: No proof kernel
qR3rBk/N1b5/2NPp1n1/3p4/n4q2/Q1N1RQq1/3rn1nN/1bKR2BB w - - 0 1 illegal: No proof kernel
1BB1bq1B/1r1R2N1/3p1k2/qQN5/qQR1Q1n1/2r1p1K1/3nPNNr/3r1b2 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Rh3 Bh6 Rh1 fxg4 Bf4 g3 Be3 g4 Bc1 Bg5 hxg5 Kf8 Rh6 Kf7 Rh1 Ke8 c4 Kf7 b4 e5 f4 h5 g6+ Kg7 c5 a5 c6 a4 c7 d6 f5 a3 b6 e4 b7 d3 b5 a2 b6 h4 f6+ Kf8 g7+ Kf7 Nh3 g2 Kf2 g1R Nd2 Na6 b8B Nh6 g8N Qd7 b7 Rg3 Nc4 d2 Ne7 Nc5 Ne3 Ra7 Ng2 Rc3 Nf5 Nb3 Qc2 d1R Bb2 Nd2 Rc1 a1Q Ng7 Qa5 Qb3+ Kg6 f7 Kf6 f8N Qda4 Qb4 Bd7 c8Q Be8 Qcc4 Rh7 Nfe6 g3+ Kg1 e3 Qe4 Rh8 Nf2 h3 Nc5 Rh7 Nh4 g2 Kh2 Rh8 Kg3 g1Q+ Ng2 h2 Rc2 Ng4 Ba1 Kf7 Bb2 Rb3 Rc4 Rc3 Bc7 Rh7 b8Q Kf6 Q8b5 Rb7 Bb8 Kf7 Nge6 Rd3 Bh8 Rc3 Nfd3 Ke7 Kf4 Nf6 Nh4 Qg7 Bh3 Qf7 Nf2 Qf8 Kg3 Rh6 Bf5 Ng4 Ng2 Rh7 Ng7+ Kf6 Bc8 Kg5 Rf1 Rh6 Nfd3 h1B Nh4 Bg2 Rf7 Bf1 Rd7 Rh7 Ng2 Kf6 Nf2 Rh2
QrR1Rq2/2N1n3/1QNp2Kp/2bR2Qr/1b1b4/2q2r1R/bk1PN2n/4B2B w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kf4 a5 c4 e3 g4 h3 b6 d6 g5+ Ke6 b7 h6 c6 h2 c5 Kd5 g6 a4 c7 e2 g7 Kc4 c6 a3 Bg2 e1B Bb2 a2 Ne2 Ra3 Nbc3 Nf6 g8Q+ Be6 c8Q Ng4 c7 Bg7 Qb1 Kb3 Nb5 Bd4 Qg5 Nc6 b8N Qf8+ Ke4 Rg8 f4 Bef2 f5 Bc3 f6 Bc5 f7 B3b4 Qd8 Bc4 Kf5 e5 c8R e4 Qa5 e3 Qa8 Rh8 Kg6 Ne7+ Kh5 Bd4 Nc6 Be6 Nc7 Rg8 Ng1 e2 Be4 e1B Ne2 Bg3 Qg1 Bdc5 Bd4 Be5 Bf2 Bed4 Be1 Kb2 Rc1 a1Q Rc3 Nd5 Rh3 Rf3 Q1e3 Rh8 Kg6 Qa5 Rf1 h1R Rf2 Nh2 Rf1 Rg3 Rf5 Rf3 Re5 Qa3 Qf2 Qc3 Qfg1 Qd8 f8R Qe7 Rfe8 Qf8 Kh5 Ne7 Rd5 Rf5 Qe3 Rhf1 Bh1 R1f3 Re5 Ba2 Rd5 Ng8 Kg6 Re5 Qh4 Rh5 Qhg5 Rh7 Na6 Rb7 Nc7 Rb8 Qd3 Ba3 Qb5+ Bab4 Qb6 Ne7+
B3k3/2Q3Rq/B1P1N1n1/1B3R1n/bqNQ1b1q/1pp2r1q/1n6/B2NrR1K w - - 0 1 illegal: No proof kernel
rq3B2/Q5bb/2P1nR1r/Bp1k2rB/Q1N1R1pN/1N1qn3/3K4/QQ1b2r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 a4 d5 c4 e5 f4 b5 h6 g5 f6 Ke6 h7 e4 c5 d3 c6 e3 h5 e2 f5+ Ke5 a5 d4 f7 b3 f6 b2 h6 Bd7 a6 Qa5+ Nd2 b1R a7 Bg7 f8N Qd8 f7 Rb4 Rh4 Rb2 Re4+ Kd6 Ng6 Kd5 f8B Ne7 Nh4 Bf5 Qa4 Na6 Nc4 Nc7 Ngf3 Qb8 Nfd2 Ne6 Nb3 g4 Bd2 Rg8 h8Q Bh7 Ba5 Nf5 Bg2 Rb1+ Kd2 Rh1 Rf1 Ne3 Rf6 e1R Bf3 Reg1 Bg2 Bf5 Qh7 Rh3 Qg6 Rhh1 h7 Rh2 h8Q Rh3 Qe8 Bh7 Bf1 Rhh1 Qg6 Rh3 Ke1 d2+ Ke2 d1B+ Kd2 Rhh1 Bd3 Rh3 Ng2 Rh6 Nh4 Qb6 Bb1 d3 Ba2 Rc8 a8Q Qb8 Qa7 Re8 Kc3 d2 Bb1 Bc2 Ba2 d1Q Bb1 Qf3 Kd2 Bd1 Ba2 Qe5 Bb1 Ra8 Qf5 Qh1 Qf1 Qb8 Bd3 Bf3 Qb1 Bd1 Rf1 Ba1 Ref4 Rg5 Bg6 Qh3 Bh5 Be5 Re4 Ba1 Rf7 Qf3 Qhb2 Qf1 Qba3 Bd4 Qaa1 Bg7 Rf6 Qd3+
1nr2kqb/RQ1B4/1Np2b2/Rb5r/2B2N2/rqPp2QB/r1RB1N2/2nK4 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 g4 h5 f4 a5 b4 d5 c3 d4 f5 h3 g5 a4 g6 e3 e6 h4 g7 a3 e7 e2 f6 h2 b6 c6 f7+ Kd7 e8B+ Ke7 b7 a2 b5 d3 b6 h3 Bd2 Nf6 g8B Ra3 Bd7 Nd5 Qb3 Bg7 f8N Bd4 Ne6 Nb4 Nf4 Kf8 Bc4 Rh5 Qb2 Bh8 Bg2 Qg5 Qb3 Qg8 Qb2 Ra6 Na3 Ra7 Rc1 a1R Bf1 Ra2 Rc2 N4a6 Qb1 Nc5 Qb5 Nb3 Qg5 Bg7 Qg3 Nc1 Bg2 Bh8 Bf1 Na6 b8Q Rc7 Qa7 Nb8 Qa8 Ba6 b7 Bb5 Qa7 Na6 b8R+ Rc8 Ra8 Nb8 Qb7 Qe6 Bd5 Qg8 Nc4 Ra3 Ra7 Ra2 Kf2 e1B+ Ke3 Ra3 Nb6 Ra2 Bc4 Bf2+ Kf3 Bfd4 Ra5 Bdf6 Kf2 Ra3 Ke1 Ra2 Kd1 Ra3 Nge2 Ra2 Rg1 h1R Ra7 h2 Nh3 Ra3 Nef4 Ra2 Rg2 Rg1 Re2 h1Q Nf2 Qhd5 Re1 Ra3 Bfh3 Rg2 Re5 Ba6 Bb5 Qb3 Bc4 Rh2 Ra5 Bb5 Ne4 Re2 Nf2 Re4 Bd5 Rea4 B5e6 Ra2 Bc4 R4a3
Q1KR3r/1n2Qn1k/1Qp3bB/3NR1p1/N2qb1qb/3B3r/N2b1BNP/6r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 f5 d4 Kf7 e4 Kg6 b6 f3 Ke3 c6 Kf4 a4 Ke5 g3 b5 g2 d6 f2 d5 f4 b7 a3 d7 f3 Ke6 a2 e5 Rh7 b6 Qh4 d6 Rh6 Nh3 g1Q Qd4 Ra4 Bd3+ Qe4 Nc3 Nf6 Nf4+ Kh7 Ng2 Rh3 Bh6 f1R Re1 a1B Na2 Na6 b8Q g5 b7 f2 Qb6 Bc3 Qa8 Nb4 b8N Bd2 Na6 Ng8 Nc5 Na6 Re3 Rb4 Na4 Rc1 Re2 f1B Re1 Qe3 Rd1 Be2 Rhe1 Bf3 Re2 Qd4 Ree1 Bb7 d8Q Bc8+ d7 Bc5 Re2 Bh5 Qdc7 Bg6 Qca7 Bb7 d8B Bd6 Kd7 Qg4+ e6 Rcb1 Q7b8 Bg3+ Qd6 Bh4 Re5 Nc5+ Kc7 Bc8 e7 Rc4 e8N Nb7 Qf6 Be6 Qe7+ Bf7 Kb8 Be4 Nc7 Rc3 Nd5 Ra1 Qe6 Bfg6 Kc8 Rb3 Be7 Rc3 Bc5 Rac1 Bg7 Nh6 Bgf8 Nf7 Bh6 Qc4 Bf2 Qd4 Re1 Rd1 Re3 Rg1 Rf3 Nh8 Rf8 Nf7 Rd8 Ra3 Be2 Raf3 Bd3 Rf6 Qd7 Re6 Qd6 Re8+ Qe6 Rh8 Qd7 Qf4 Qe7 Qg4+
qQn1rn1B/bK2N1RQ/Bp5R/Qb4b1/2P4B/8/2br2p1/Nq1kq1QR w - - 0 1 illegal: No possible last move
7n/r1q1N1qR/P5QK/n2bBQ2/2k1r3/Rp2pBB1/Rb5B/qNq1b2N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 h5 a4 b5 g4 e5+ f6 b3 d4+ Kb4 f4 c5 f5 c4 d6 c3 d7 e4 a5 h3 a6 h4 d5 h2 d6 e3 Ra3 b2 Bg2 c2 Bf3 h3 Ne2 Qa5 d8R Nc6 d7 Bd6 f7 Bc5 f8Q Nh6 f6 Qc7 f7 Bb7 Ng3 Na5 Qdd6 Kc4 Qg6 b4 Bd2 c1B Bc3 b3 Be5 Rh7 Kh5 Bb6 g5 Bd5 Rc8 Ra7 d8B Bd4 Be7 Rh8 B7d6 Bc3 Rd8 Be1 Rd7 Rh7 Qc8 Bc6 f8B Bd5 Ra2 Rh8 Rh7 Nf7 Qcf5 Rg8 Rg1 Nh8 Kh6 h1Q Ra3 h2 Rg2 Qf1 Nh1 Qg1 Bg3 Rg7 Bde5 Re7 Rd2 Re6 Bfd6 Re8 Qgf7 Qg2 g6 Qg1 g7 Re6+ Bf6 Re4 g8N Qg2 Ne7 Qg1 Nc3 b1Q Rda2 Bb2 Bfe5 Qc1 Q7g6 Qa1 Nb1 Qg2 Nf2 h1Q+ Bh2 Qhg1 Nh1 Qd2 Beg3 Qc1 Bde5 Qg2 Bgf4 Qg4 Bfg3 Qg5+ Kg7 Qf6+ Kh6 Qg7+
Nq2nnq1/2Q2b2/Pq2RK2/1r2RRQ1/r2p1q2/4N1bk/1p2NB2/B2BBn2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Kf4 b5 h4 d5 c4 b3 a4 d3 c5 b4 a5 g6 h6 d2 h5 e6 c6 b2 a6 b3 c7 Bg7 h7 Bb7 c8N Qb6 h6 Bc6 Ra5 Be8 Qh5 d1N Ne2 Bf7 Bd2 Nd7 Be1 Ne3 Nbc3 b1Q Nd1 Rb8 Bg2 Nf8 Bf3 Nf1 Ne3 g5+ Kg4 Qb5 Nb6 e5 Na8 e4 Qh2 Qb2 Qc7 Qb6 Rh5 Qe5 Rc5 Qed6 Rc6 Ke5 f6 Ke6 Kh3 g4+ Kh4 g3 Kg5 g2 Bg4+ Ke5 f3 g1Q Bf2 Be8 f7 Nf6 Be1 Rg8 h8Q Qh2 h7 Qg1 Ng2 e3 f4+ Ke4 f5 Qf4+ Kh4 Bh6 Qg7 Rb7 h8B Bg5+ Kh3 Bh4 Qg5 Bg3 Rd6 Qd4 Rc6 Rb5 Rd6 Qb6 Rc6 N6d7 Ba1 b2 f6 d4 Bf2 Rb4 Rd6 Ra4 Rc6 Nc5 Rd6 Nce6 Rc6 Ng7 Rd6 Nfe6 f8B Bf7 Be7 Nf8 Re6+ Qe5 Bd6 Ne8 Bb4 Rg6 Bbe1 Qb8 Bf5+ Kf3 Bc2 Qf4 Bd1 Rh6 Nc1+ e2 Ne3 Bg8 f7 Rf6 Re5 Rb6 Rh6 Rb5 Rhe6 Nd7 f8R Bf7 Rh8 Nf8 Rh5 Bh4 Qge7 Qg8 Rhf5 Bg3 Qg5 Qb6 Ng4 Bh2 Kh4 Kg2 Bd2 e1Q Ne2 Qb8 Ba5 Qc3 Bb4 Qb3 Bbe1 Ng6+ Kh5 Kh3 Ne3 Bg3 Qgd8 Qf3+ Kg5 Qb4 Qf6 Nf8+ Qg7 Qc5 Qg6 Qcb6 Qg7 Nd6 Kf6 Qf4 Qg5 Ne8+
n1q5/2BQ2bb/p1b4r/2QN1R2/k1Nn1K1p/B2N2n1/B2BR1QP/1b2q2r w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 d4 h5 g4 e5 c4 f5 d5 f3 Ke3 f2 b6 h4 c6+ Kd6 g5 Kc5 d6 Kb4 b7 a6 c5 Nf6 c7 Nbd7 b8B Nh5 c6 Nb6 d7 Rh6 g6 Bg7 Nf3 Ng3 Bc4 f1B Ne1 Bb7 c8Q Bd3 c7 Bc6 Na3 Bb1 Ra2 Ra7 Bg8 Rb7 Re2 Na8 Ba2 Rb6 Qb7 Qc8 d8B Ka5 Qd2+ Ka4 Qd7 Rb2 Rf1 f4+ Kf2 f3 Ke3 f2 Bg5 Rd2 Nd3 Rd1 Nc4 Re1 Ba3 Rc1 Rd1 f1B Bf4 Bh3 Rf1 Bf5 Qb6 Rd1 Qc5 Re1 Rf3 Rh1 Bg5 Bf8 g7 Bh7 g8Q Bg7 Kf2 e3+ Kg2 e4 Rf5 Qd8 c8N Qf8 Ne7 Qc8 Re1 e2 Bd2 e3+ Nd5 Rd6 Kf3 Rh6 Rf1 e1N+ Kf4 e2 Bc7 Nc2 Rf2 e1Q Re2 Ba1 Qg4 Bg7 Qg6 Nd4 Qg4 Nf1 Qg2 Ng3
n1r3r1/Q2KB1Q1/pQ1R3b/1B5n/1NbpRqR1/2BQn1P1/N3rk2/r6q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 d5 f4 h5 c4 h3 g3 a6 b6 h2 b7 d3 b5 d2 f6 Ke3 f7 d4 b6 h4 f5 h3 f6 Nd7+ Kc6 e5 b8Q e4 c5 Kf2 b7 e3 Bb5 e2 Qa7 e1Q b8Q Rh7 Bb2 Nh6 Na3 Qee8 Ne2 Rg7 Qbb6 Qe5 Nc1 Ng8 Bc3 Qf4 Nc2 Rg4 Nb4 Bh6 Qb3 d1N f8B Ne3 f7 Qh4 Be7 Ngf6 f8Q Nh5 Nca2 Rg8 Qg7 Rb8 Rhe1 h1R Rab1 h2 Qd1 Rg1 Qd3 h1R Rb3 Rh2 Rbb1 Nf1 Re4 Ne3 Re1 Qh3 Re6 Rhg2 Rd6 Qh1 Kc7 Ra8 Kc6 Bb7+ Kc7 Bd5 c6 Nf5 Re4 Ne3 Kb7 Bf7 c7 Bc4 Kc6 Ra1 c8R Rb8 Rf8 Rh2 Rff6 Rbd8 Rg6 Rc8+ Qbc7 Nb6 Rg4 Na8 Kd7 Kf3 Qab6 Re2 Qca7 Kf2
4q3/1Q1R2N1/p3pq1B/1nB1P3/3n1b1Q/1Rrr1Q1n/bNrn2B1/1k2B1NK w - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 e4 Kf7 d4 Kg6 f4 h5 Kf2 c5 b4 h2 Kg2 c4 b6 a6 b5 h4 d6 c3 d7 h3+ Kf2 c2 d5 Nh6 d6 Qe8 d8Q Nf5 b7 Nc6 b8N Ncd4 d7 Nd6 e5 Kf5 b6 Ke4 b7 g5 f5 g4 f6 Bh6 f7 Bf4 f8B N6b5 Be3 c1R Ra3 Rc3 Rb3 e6 Nc6 g3+ Ke1 g2 Kf2 Rh6 b8Q Bb7 Ne7 Bd5 Qb7 Rac8 Nf5 Rd3 Ba3 Rcc3 Qh4 Rh7 d8B Rhc7 Bc5 Rc6 Nf3 g1N Bg2 Rc8 Ba5 Rc6 Ne1+ Ngf3 Ng7 Bc4 Rg1 h1Q Na3 h2 Qe2 Bd5 Nc4 Rc2 Nb2 Bc4 Bf1 Nd2 Nf3 Rcc3 Rg5 Rc2 Ng1 Qf3+ Ke1 h1N Bg2 Nf2 Rg4 Nb1 Kf1 Nh3+ Qef2 Bd5 Be1 Rc7 Nh5 Rc8 Rg7 Rc6 Rd7 Bc4 Rc3 Ba2 Rb3 Rcc3 Bf8 Rc2 Bh6 Rcc3 Ng7 Rc2 Qc8 R6c3 Qb7+ Nc6 Qb8 Rc1 Qc8 Rd4 Qe7 Bh2 Qg5 Rd2 Bb6 Ncd4 Bh1 Rcd1 Bc5 Re2 Nc4 Kd3 Qh4 Kc2 Nb2 Qf6 Kg2 Rdd3 Qb7 Red2 Qe2 Bf4 Qef2 Kc1 Qe2 Rdc2 Qef2 Nd2 Qff3 Bg5 Kh2 Be3 Bg2 Bf4+ Kh1 Kb1
1B1R2Rb/3r2NP/n2p2n1/1QpB1qK1/3rr1QR/R2Qr1NB/q3b3/k6q w - - 0 1 illegal: No proof kernel
7b/q3q1Bp/1N1R2BR/QrB5/1nN1r1kb/2R1r1Bb/2p1bP2/1N1QK2n w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 g4 Kf6 b4 a5 g5+ Kf5 b6 c5 d6 e5 b5 e3 g6 h3 g7 e2 d5 a4 b7 h2 d7 c4 b6 a3 d6 a2 Bg5 c3 Qc2+ e4 Bd2 Ra5 Bh6 Be7 Qb3 Kg4 Qd1 c2 Nf3 Rb5 Nfd2 Bh4 Nc4 Qe7 d8R Na6 b8B Nb4 b7 Nf6 g8N Nh5 d7 Ng3 Bg7 Qf7 Ne7 Re8 Nd5 Qe7 Rg1 h1B Ndb6 Bf3 Rh1 Qc5 Rh3 Nh1 Bd6 Qc7 b8B Qa7 Bc5 Re7 Kd2 e1R Bd3 Re3 Bg3 Be2 Ke1 Re5 Rf8 Re8 d8Q Re6 Rf6 Re8 Nba3 Bf5 Rb1 a1B Rb3 Be5 Rd6 Re7 Bf8 Bh8 Bg7 Kg5 Rd7 Beg4+ Be2 Rc3 Nb1 e3 Bd3 e2 Na4 Bh5 Kd2 e1Q+ Kc1 Qe4 Kd2 Be2 Rd6 Qeb7 Be4 Re3 Qa5 Re6 Bd3 Qe7 Nab6 Bfg4 Bf5 R6e4 Bg6 Bf5 Rc3 Be6 Bh2 Bg3 Rh6 Bh4 Ke1 Bh3 Bg3 Kg4
B2b1B1K/1Bq4p/N4kr1/1n2Rb1P/Qnprqn2/1N1Nn1qB/RQ1R4/8 w - - 0 1 legal: proof: d4 b5 c4 e5 f4 d5 cxd5 exd4 a4 g5 axb5 gxf4 Kf2 Ke7 Kf3 a5 Ke4 c5 Ke5 f5 b4 a4 g4 d3 e4 a3 h4 a2 b6 d2 b5 c4 d6+ Kf7 b7 f3 d7 f4 g5 f2 b6 f3 h5 Na6 b8N Nb4 g6+ Ke7 b7 Ra7 g7 Kf7 Ne2 Na6 Ba3 Be7 Nc1 Bf8 Nd3 Qh4 d8R Nb4 Qa4 d1N Nd2 Nc3 Nb3 Nb5 Bh3 f1N Na6 f2 b8Q Ne3 Rhe1 Ne7 g8B+ Kg7 Bd5 f1Q Bb7 N7d5 Re2 Nf4 Rd5 Qh1 Rd2 Qg3 Ba8 Kh6 Kf6 Rd7 e5 Rg8 e6 Qe4 Re5 Rd4 e7 Bf5 e8B Be7+ Kf7 Kg5 Bec6 Bf6 Bcb7 Rg6 Qh8 Bd8 Qg7 Qg1 Kg8 Qgg2 Kh8 Qg3 Rh1 a1Q Rhh2 Qag1 Rhf2 Q1h2 Rfe2 Na2 Bf8 Nb4 Ra2 Bc7 Red2 Bd8 Qd7 Kf6 Qa3 Qhg2 Qb2 Qc6 Qe8 Qc7 Qd7 Qe4 Qe8 Na7 Qa4 Nb5
q3B3/n2N1r1p/4k3/n1B1P3/n2R1QKp/R4Q1N/qb2Rb2/RQ1r1bnB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 d4 f5 g4 c5 b4 a4 e4 a3 b6 a2 b5 c4 b7 c3 d6 c2 d5 Qb6 g5 Qa5 b6 Nc6 b8Q Ra7 b7 Nge7 Be3 c1N g6 Nd3 g7 Nb2 g8B Na4 Nc3 Qa6 e5 Na5 Bb5+ Nec6 Bc5 Be7 Bf7 Rd8 Nh3 Bf8 Qb3 Bh6 Rae1 a1B Ne4 Bb2 Re2 Bf8 Ra1 Bh6 Kf2 f3 Qa8 f4 b8Q Bg5 Qe3 Rb7 Bc4 Na7 Qc1 Bh6 Qb1 Rc7 Qb4 Qc6 Qd2 Ba6 Qb7 Bg5 Qb3 Qa8 Nf6+ Kc8 Bh5 Rf7 d7+ Kc7 d6+ Kc6 Kg1 f2+ Kg2 f1N Kf3 Ng3 Kg4 f3 Qf4 f2 Qbe3 f1Q Bd5+ Kb5 Qc3 Qf2 Bh1 Qfg2 Qcd3+ Kc6 Qdf5 Qd5 Qf3 Bgc1 Q5f4 Be3 Ra3 Bf2 Ra1 Rc8 d8R Bc4 Rg8 Rd8 d7 Bb5 Rh8 Kc7 Re8 Qa2 Re6 Bc4 Rb6 Bd3 Rb3 Bc4 Ra3 Ba6 Re4 Ne2 Ree3 Ng1 Re2 Re7 Be8 Rf7 Re1 Bf1 Re2 Rb8 d8R Rb5 Bf8 Rd5 Bc5 Rd1 Rd4 Kc8 Nd7 Kd8 Rd6 Ke7 Rd4+ Ke6
4bb1k/NN2Brnp/Q1r3B1/q1p1P2R/qQ2nR1K/7B/1r2RQ2/1b4Bb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 d4 f5 g4 Kf7 b4 Kg7 e4 a5 e5 f3 g5 f4 g6 a4 b6 h3 d6 h2 d7 a3 b7 a2 b5 Nc6 b8Q Qe7 d8R Qb7 b6 Qa7 b7 Nh6 d5 Qa6 d6 Na7 d7 Nf5 Qe2 Nd4 Bh3 Qd3 Na3 Nab5 Qa7 Rb8 Qa6 Bd6 Be3 Qb1 Rf8 Qb4 d8B Bf5 Be7 Bb1 Nc4 Qa4 Na5 Ne6 Rf6 Rbc8 b8Q Nc3 Qb4 Rc6 Nb7 Rb8 Rf7+ Kg8 g7 Qa5 Qc2 Qa4 Ne2 Ne4+ Kf1 f2 Kg2 f1R Nd4 Qa5 Nb5 Rf3 Re1 h1B+ Kh2 Rf1 Re2 f3 Bg1 f2 Rf4 Qa4 Na7 Qa5 Bd8 Bf8 Be7 Qa4 Nd6 Rb5 Nb7 Rbb6 Qba5 Rb2 Qb4 Re1 Qcd2 f1B Qdd4 Bfg2 Qe3 Rf1 Qf2 Nf6 Kg3 Ne4+ Kg4 Bf3+ Kh4 Bh5 Qac4 Be8 Qa6 Bd3 Rc1 a1Q Rc4 Qa5 Rf5 Bb1 Rh5 Q1a4 Rd4 Nc3 Rf4 Ne4 Bf5 Kf7 g8B+ Kg7 Bf7 Kh8 B7g6 Ng7 Bc8 Rd1 Bh3 Rd7 Bg5 Rf7 Bf6 Qa2 Be7 Q2a4
b2b1QN1/7p/2B2P2/1NQbn2K/Q1n2bn1/B2NBp2/q1QRq3/2R2rrk w - - 0 1 illegal: No proof kernel
4R3/3k3p/2nqp1Rr/1rB2Q2/1n6/1bR1N2P/Br1NnnQq/NbQQ1K2 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 axb5 e6 e4 Bd6 f5 Bf4 g3 f6 e5 fxe5 gxf4 e4 b4 g5 c4 a5 h3 d5 f6 a4 c5 d3 b6 d4 c6 a3 b5 e3 f7+ Ke7 f8R e2 c7 g4 b7 g3 b6 g2 f5 a2 f6+ Kd6 f7 Na6 b8N Ne7 b7 Nb4 Nc6 Kd7 b8Q Bb7 Nc3 Ra5 Re8 Rb5 f8Q Rg8 Qa8 Rg6 Qf5 Rh6 Nf3 g1N Na5 Nec6 Ba3 d2+ Kf2 e1R Nd5 d3 Ne3 Qe7 Rc1 a1Q Nb3 Qb2 Rc3 Ne2 Rg1 Qd6 Rg6 Ba6 Bg2 Rg1 Bh1 Rg2+ Kf1 Rh2 Na1 Bb7 Qe1 d1N Nd2 Nf2 Bd5 Rg2 Ba2 Ba6 Ndc4 d2 Qc1 d1B Nd2 Bb3 Qd1 Nbd3 Bc5 Ndb4 Rc1 Qbe5 Rc3 Qh2 Qb7 Rb6 Qa8 Bd3 Qb7 Bb1 Qa8 Na5 Qae4 Rg5 Qg2 Nac6 Bd4 Nd8 Qd3 Nc2 Rc6 Bd5 Qde4 Re5 Qf5 Rb2 Bb6 Nb4 Rc5 Qc6 Ba7 Bb3 c8Q+ Kd6 Rc2 Rb5 Rc1 Qd7 Qc3 Qc7 Bc5+ Kd7 Qcc2 Ndc6 Qc4 Be4 Qcc2 Qcf4 Qb1 Qd6 Rc3 Bec2 Qbc1 Bb1
BB4qb/rRr2NPk/b4K2/2R1bn1B/1pN3QQ/1N1r2n1/1q1N1p1R/5r2 w - - 0 1 illegal: No possible last move, all moves rejected
1Kn5/1Rr2bp1/2NpBBBq/1NQr2Qb/4N3/qPR1b3/2Q2q2/N1b2k1n w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 a5 c4 g3 f4 a4 b3 a3 h5 a2 h6 g2 b6 d3 h7 d2 f6 Ke3 f5 Kf2 f7 Ra3 f6 Ba6 b7 Nh6 Nf3 g1Q Rh3 Qg2 Bb2 Ng4 Ng5 Qh1 Rc3 Qh6 Bd3 Qh5 Bg6 Nc6 b8N Na7 Nc6 Qh6 Qc2 Nc8 Ne4+ Kf1 Kd5 d1B c5 Ra4 Na3 e5 Nb5 Qb6 Rc1 Bd6 f8N a1Q f7 Ra5 Ne6 Qa3 f8Q+ Nf2 Ned4 Bb8 Qe7 d6 Qg5 Ba7 Ra1 Rd8 h8Q Rd7 Qf8 Rc7 Qff5 Qb4 Ra4 Qa3 Rb4 Bg4 Qcd2 Bd1 Nc2 Bh5 Na1 Bb7 Qc2 Ba6 Nf6 e4 Qe5 e3 Ne4 e2 Ke6 e1B Qd4 Rb7 Qde5 Rb8 Kd7 Bd2 Qd5 Bb7 Qd4 Bc1 Qde3 Qa6 Kc7 Nh1 Qd4 Nb6 Qdd5 Rg8 Qde5 Nc8 Qd4 Bb6+ Kb8 Rf8 Qdd5 Rf7 Nc7 Qc4 Ne7 Qe2 c6 Bf2 Rg3 Rf3 Bf6 Rc3 Qdf5 Ba6 Rb7 Na7 Re3 Rcc5 Rc3 Bc4 Qe5 Bf7 Qd4 Ra6 Nb5 Rd5 c7 Rc6 c8B Bfe3 Qc5 Qf2 Be6 Rc7 Nc6 Nc8
2BNRqrb/K1Q1RP2/B3Qrq1/1pRB1bB1/5b2/n2b4/pN6/n2Nqk2 w - - 0 1 illegal: No proof kernel
2BQN1RR/4qp2/2rqQK2/1bb1Qp2/1kn3Nr/qrR2P2/3q1R2/1N3Bn1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 h4 gxh4 a4 b5 axb5 Be6 b3 Bf5 Bb2 Bc8 Bf6 exf6 d4 Ke7 Kd2 Kd6 Ke3 a5 Ke4 h5 g4 c5 f3 a4 g5 c4 b4 h3 g6 h2 g7 h4 b6 c3 b5 c2 b7 c1Q b6 a3 Ra2 h3 Qe1 Nc6 b8Q+ Qc7 b7 Nh6 g8B Qc4 Bh7 Ne5 Bf5 Qc5 e3 Ra7 Rf2 a2 Bd7 Nhg4 Kf5 a1Q e4 Nc4 e5+ Ke7 e6 Kd6 e7 Rh6 Be6 Qaa3 Qe3 Bd7 e8N+ Ke7 Qc8 Q7d6 b8R Rb7 Qe5 Bb5 Qc6 Qcb4 Rc8 Qd2 Qb6 Bd7 Qa6 Rb3 Rc5 Bb5 Bc8+ Kd8 Qc6 Qe7 d6 Rg6 Rg2 Nf2 d7 Qd6 d5 Rh6 Qf4 Ke7 d8R Rg6 Ne2 Rh6 Nc1 Rg6 Rhg1 h1Q Nd3 h2 Ne5 Nh3 Rf2 Rh6 Rg7 Ng1 Ng4 Qg2 Qd4 h1R Rg8 R1h4 Qa6 Nb2 Rc3 Nc4 Bd7 Qgh2 Ra8 Qc7 Bc8 Qhd6 Rh8 Kd8 Qe5 Qce7 Qa7 Rg6 Qae3 Rgh6 Qe6 Rg6 Q3e5 Rgh6 Ng7 Kc7 Ne8+ Kb6 Rg8 Kc5 Rb8 Qb6 d6+ Kb4 d7 Qbd6 d8Q Qdb2 Kf4 f5 Rh8 Rf6 Kg5 Qbd2+ Qf4 Qda6 Rb6 Qd5 Qc6 Qee6 Qe5 Bc5 Qcd6 Rfh6 Q6e7 Qed7 Rg6 Qab7 Rg7 Rc6 Q7e6 Qd2+ Kf6 Q7d6 Rgg8 Qbe7+
1R3N2/k3bp2/1n3bn1/rP1q1pbq/B1N1b1R1/1r2BQN1/RQ2N1r1/1K2B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e6 f5 exf5 cxd5 Bg7 Nc3 Bh6 Nb1 Bf8 e4 Kd7 b4 c5 d4 Kc7 Kd2 Kb7 Kc2 h5 g4 a5 e5 h3 b6 a4 e6 h4 d6 a3 d5 a2 d7 c4 e7 h2 e8N h3 d6 c3 g5 Be7 g6 Ra3 g7 Nf6 g8Q Nc6 Qf3 Ng4 Ng7 Rh5 Be3 Nf6 Bb5 Rg5 Nh5 Rg2+ Nd2 Ra5 Qg7 Nd5 Ne2 Ne5 Rhg1 h1R Nc4 h2 Ba4 Ng6 b5 Qh8 Ng3 Qh5 Kc1 c2 d8B Be6 Kb2 c1B+ Kc2 Bd7 Qb2 Bc6 d7 Kb8 b7 Nb6 Bc7+ Ka7 b8R Ba8 d8N Be4+ Kd1 Bd2 Ne6 Bc1 Nf8 Bd2 Rc1 a1B Rc2 Bc1 Bd6 Bd2 Bb4 Bc1 Qb3 Baf6 Be1 Bd2 Qb2 Bc1 Bd4 Bh6 Be3 Bhg5 Rf1 Rhg1 Kc1 h1Q Rf2 Rf1 Kb1 Rfg1 Qg4 Rf1 Rf4 Rf3 Qh3 Be5 Rg4 Be5f6 Bg1 Rd3 Be3 Qf1 Qh1 Qf4 Qf1 Qd6 Qf3 Qd8 Qc1 Qd7 Ra2 Qd5 Qb2 Rb3+
qQ1BB2n/nNn2pqR/4p1rQ/1R4Qb/1q5N/k1B1QNr1/3q2P1/2K3b1 w - - 0 1 illegal: No proof kernel
1B1b4/b1R1p1B1/3R1PR1/nb1B1N2/Nr1q1nr1/N1nb1Qp1/qQ6/2K1k2B w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 f4 Kf6 c4 g5 h4 a5 b4 d5 h5 d3 c5 a4 c6 d4 h6 a3 h7 g3 c7 g4 b6 a2 b7 g2 b5 g3 b6 Nc6 b8Q Bg7 b7 Bd7 c8B Ra4 Qf3 Rb4 Bb2 Na5 Kc1 Bb5 Ne2 g1B Bg2 Bf2 Na3 d2+ Kd1 Be3 Rc1 a1Q Be6 Qa2 Nc3 Qdd5 Kc2 d1N Na4 Nc3 Rhd1 Bg1 Bh1 d3+ Kd2 Bb6 Bf7 Qdc4 Bd5 Qd4 Rc2 Bd8 Kc1 Nh6 Rdd2 Rg8 h8N Ng4 Nf7 Nf2 Nh6 Nh3 Ba1 Bh8 Rd1 Rg4 Bb2 Kg7 f6+ Kg6 f5+ Kh5 f7 Nf4 f8R Kh4 Rdd2 Kh3 Rg8 Be5 Rg7 Bec7 Rg8 Bb6 Rg6 Ba7 Qe5 Bc5 b8B Ba7 Bg2+ Kh2 Bh1+ Kg1 Qh8 Ne4 Rc7 Nc3 Qe4 Kf1 Qf3+ Ke1 Qf6 Nb1 Qb6 Qh8 Bg7 Nc3 Bf8 Qe5 f6 Qd4 Nf5 Nb1 Rb2 Nc3 Bg7 d2+ Kc2 d1B+ Kc1 Bd3 Rd2 B1e2 Qb5 Rc4 Qb2 Rb4 Rc2 Nd1 R2c6 Nc3 Ra6 Bb5 Rd6 Bed3
1q1Q2QR/B1qP1QB1/3brK1n/1k5N/3nR3/2p1pBrB/Rq2N3/1b1bb3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 h5 g4 e3 d4 e2 f4 e1Q+ Ne2 c4 b4 a4 b6 h3 d6 Kc6 b7 c3 f5 h2 f6 h4 d5+ Kb5 g5 a3 g6 a2 f7 h3 g7 e6 d7 Rh6 d6 Rf6 Nd2 Nh6 g8B Qc7 d8R Qf2 Re8 Rg6 Re7 Ra6 Ne4 Rg3 Nf6 Qfb6 Nh5 Nc6+ Kf6 e5 b8Q e4 Qb7 Nd4 Be3 Bf5 Bg2 Bg6 Bf3 Bh7 Qa7 Qbb8 Qb3 Bf5 Bh7 Bg4 Bf5 Rb6 Re6 Ra6 d7 Bd6 Qa8 Rc6 f8Q Rb6 Bf4 e3 Re4 Ra6 Qbg8 Rb6 Rhf1 h1Q Be5 h2 Qff7 Qg2 Be6 Bf5 Rh1 Bh7 Bh3 Bf5 Rac1 a1B Rc2 Bb2 Rd2 Bc1 Ra2 Bd2 Qa5+ Kc6 b5+ Kc5 Qa8 Be1 Qa5 Ra6 b6+ Kc6 b7 Qf2 Nc1 Qb2 Ne2 Rb6 Qa8 Kb5 Qd8 Be6 Qdg8 Bb3 Qd8 Bd1 Qdg8 Qe8 b8B Qf8 Ba7 Qfb8 Rf1 h1B Rf2 Qf8 Rh2 Bg2 Qd8 Bf1 Nc1 Bd3 Ne2 Bb1 Bf4 Nhf5 Bh6 Rc6 Bg7 Nh6 Qe7 Qfb8 Qed8 Rb6 Bf1 Nhf5 Nhf4 Rc6 Rh6 Rc5 Bh3 Re5 Rh8 Nh6 Nh5 Re6+
NBR1B3/r1Qp2qR/1B4nn/nnRN1r2/3k4/1pqr4/Bb2Q1P1/1b1NK3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 f4 e5 a4 h5 a5 b5 g6+ Kf6 a6 h4 a7 d3 c5 e4 g7 h3 c6 b3 c7 b4 Ne2 h2 Rg1 h1N Ng3 b2 Be3 Nf2 Rh1 Rh5 Ne2 Qe7 Nec3 Nh6 g8B Bb7 c8R Nc6 Qe2 Bg7 Ra5 Nfg4 Ba2 b3 Rc5 Na5 Nd1 Ne5 Nbc3 b1N Bf2 e3 Nd5+ Kf7 f6 Ke6 f7 Na3 f8B Rf5 Rh3 Ng6 Rh4 Qf6 Bd6 Nb5 Bb8 Qf7 Rh3 Bb2 Rh5 Qg7 Rh4 Ng4 Rh7 Nh6 Bg1 Rf7 Bf2 Kf5 Bg1 Ke4 f5 Kd4 f6 Rf8 f7 Bc6 Nc7 Be4 Nd5 Bf5 Qh5 Be4 Be2 Bf5 Qh2 Be4 Qc7 d2+ Kf1 Bb1 Bh5 Re8 f8Q Re5 Qe8 Rf5+ Nf2 d1R+ Ke2 Rd3 Ke1 Qg8 Nd1 Qf8 Qe6 Qg7 Bf2 Nh4 Be8 Ng6 Bh4 e2 Bd8 Rh3 Qb7 Re3 Bb6 Rd3 Qc7 Nc3 Qd8 Re5 Kf2 Rf5+ Bf4 Rb8 a8N Rb7 Qee7 Ra7 Qe6 Rh5 Bb8 Nb5 Qc7 Rd2 Kf3 e1Q Qe2 Rg5 N1c3 Qc1 Kf2 Rd3 Nd1 Rf5+ Ke1 Qc3+
Rr1Q1rKB/Rn1p3Q/1r2qRNb/5b2/2Nkp1QP/5r1b/B2q4/2Q1n2N w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 a5 f4 e5 h4 g5 b4 a4 c4 g3 c5 g2 b6 a3 b7 g4 c6 g3 c7 d3 b5 a2 b6 d2 Qg4 Nh6 Nh3 g1R Bb2 g2 Nf2 Nc6 b8Q Ra3 b7 Nb4 Bc4 Nd3 Kd5 Re1 Rf1 g1Q Nh1 Qb6 Bb3 Ra6 Na3 Nf7 Qa8 Re2 b8R Rf2 Qc6+ Nd6 Ra8 Qb4 Qc1 Rb6 Bc3 Ba6 c8N Rc6 Ne7 Qe8 Bb2 Bb7 Nc4 Bh6 Bc3 Ne1 Bb2 Kf7 f6 e4 Bd4 Rb6+ Ke5 Bd5 f5 d1B Qg3 Kf8 f7 Bg4 Kf6 Bh3 Qg4 Rf4 Kg6 Nb7+ Bf6 Rg8+ Kh7 Be6 Rf2 Rd6 Be5 Rd3 Bh8 Qd2 Nc6 Rg3 N6e5 Ke7 Rf3 Qd8 Rf2 Qb6 Rf3 Rb8 f6+ Kd8 f8Q+ Kc7 f7 Qa6 Nb2+ Kb6 Qfg8 Qc4 f8Q Rf7+ Qfg7 Kc5 Qd8 Kd4 Rf6 Bf5+ Ng6 Rf3 Kg8 Qa6 Nc4 Qe6 Rb1 a1R Qh7 Ra5 Ra1 Rb5 R1a7 Rb6 Ba2 Rf8#
4RK2/3p4/kqBQN1BB/PRp4q/nr1N1n1Q/4rbn1/1bQ2qnB/5N2 w - - 0 1 illegal: No proof kernel
Q2rB3/1qPNq3/1R1QbbKb/B3Q3/7p/B2p1R1n/q1k1r2n/1R1Rq2N w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 b4 e5 f4 d5 c4 h6 c5 h3 b6 d3 g5 a4 b7 h2 b5 d2 f6 d4 c6 a3 b6 a2 f5 Qd5 f7 Bd7 g6 Ke3 g7 e4 Bb5 Nf6+ Kg6 h5 g8Q h4 Ne2 Nh5 f6 Bh6 f8B Be6 f7 Nd7 b8Q Ndf6 b7 Ng4 Qe5 Rd8 b8R Rh7 Rg1 h1Q c7 Nh2 Be8 Kd3 Bb4 e3 f8R Re7 Ng3 e2 Bca3 e1Q Nc3 Qd6 Rc1 a1B Rb1 Qb7 Nce4 Bb2 Nh1 Nf4+ Kf6 Qd7 Ba5 Nh3 Kg6 Qdd5 Qgh8 Qa2 Rf3+ Qe3 Qf8 Ba1 Qa4 d1Q Nf6 Qe1 Nd7 Bc3 Qb4 Kc2 Qbd6 d3 Qfh8 Q1e2 Rgd1 Qe1 Qg3 Bf6 Qge5 Qa6 R8b6 Qb7 Qf8 Rg7+ Kh5 Rg2 Qg8 Re2 Kg6 Bg4 Qgd5 Be6 Qde4 Qa6 Qa8 Qb7 Qc6+ Qc5 Qcd5 Qf8 Qdd6 Qe7
3rq1Nk/2p5/n5R1/pB3RQN/QR1r1BQ1/qbP3b1/1R5n/KNbq2q1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 Kf7 Kc3 Kg7 g4 h5 b4 a5 Kb2 d5 f4 h3 b6 e3 b7 h4 g5 d4 c3 h2 b5 h3 f5 d3 g6 d2 f6+ Kh6 g7 Kh7 b6 e2 e6 e1B f7 Ra7 e7 Be6 e8Q Ra6 Qg4 d1Q Ra4 Bg3 Rb4 Nh6 g8N Ba2 Qa4 Qe8 Ne2 Qd6 Qg5 Ng4 Bf4 Bh6 Rg1 h1Q f8R h2 Rf5 Qf3 Ka1 h1Q Rg2 Qg1 Rb2 Qa3 Rb4 Bh4 Ng3 Nh2 Nh5 Qd1 Bb5 Bg3 Qg4 Ra8 Rgb2 Na6 b8R Bg5 b7 Bh6 Rd8 Rb8 Rd3 Rd8 b8Q Rd4 Re3 Bg5 Re6 Bh6 Rg6 Bg5 Nh6 Rg8 Qd8 Kh8 Bd6 Bc1 Bf4 Qc6 Qe7 Rgd8 Qeg5 Qe8 Ng8 Bb3+
R4R2/Q1pnb1B1/bNqr1P1q/7R/B3Npk1/1r4q1/N1bR1Q2/K1bn1B2 w - - 0 1 illegal: No proof kernel
1Q1Rqr2/r1p1b1pb/3B1Pnn/4Q1K1/1N2rq2/2r1N2B/2N4k/R1RqB2B w - - 0 1 illegal: No possible last move, all moves rejected
2K1nk2/QP1bN1q1/2B2bbN/1bB5/NN2np2/4R3/QpR2Q2/rRr2rq1 w - - 0 1 illegal: No possible last move, all moves rejected
B1bbr1K1/1P3R2/N2n1Q1Q/2R1br2/p5Np/1qQ2rRq/kB1bQ3/4Bn2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 e3 g4 h3 b6 h4 g5 c6 f5 e2 b7 e1R b5 a4 g6 e6 b6 h2 f6 Ra5 f7 Qc7 g7 Bd7 Nf3 Be7 f8Q Rc5 Nc3 Rh7 Qe2 Nf6 g8R Ne8 Bg2 Rf7 Qh6 Bd8 Ne5 Rf3 Na2 Bc8 Ng4 Na6 b8Q Nb4 Rf1 h1Q Bb2 Qh3 Rc1 Nc2+ Ke4 Rb5 d4 c5 Nb4 c4 Na6 c3 Qa8 Qc4 Qc6+ Ke7 Ke5 Nd6 Qc5 Ne3 Qb4 c2 Qc3 Ra5 Rg6 Qb3 Rg5 Nb5 d6+ Kf7 d7 Nd6+ d5 Rc5 Ra1 c1B Ra3 Bd2 Rf2 Nf1 Rh5 Bc7 d8B Ra5 Bg5 Bd8 Be3 Ke7 Bg5+ Kd7 Be7 Bf4+ Kf6 e5 Kg7 e4 Kg8 Be5 Bg5 Rc5 Bd2 e3 Rf5 Nc4 d6 Kc6 d7+ Kd5 Bh1 Nd6 Rh5 Rc4 Rf5 Rf4 Rf7 Rf5 Rh2 Rd1 Be1 Rd4 Rg2 Rb4 Rg3 Re4 Qf2 e2 Ra1 Bdf6 d8Q Ree3 Qdf8 Bd8 Rc1 Re4 Qfg7 Ree3 Qgf6 Re4 Bd2 e1B Qg2 Ree3 Qe2 Re4 Be3 Bd2 Bf2 Bef4 Be1 Re8+ Kg7 Be5 Bg2 Re7 Kg8 Re6 Rc2 Re8+ Kg7 Qb5 Qb4 Qc4 Rc3 Kd4 Qb3 Re3 Ba8 Ref3 b7 Qb4 Rc5+ Qc3 Qh2 Kd3 Qb4 Kc2 Qe2 Kb1 Qa5 Qc4 Qc3 Ka2 Kh7 Qb3 Kg7 Re6 Kg8 Re8+
3b2KB/1P2Q2Q/qk1NB3/1qp2bbR/1nB3NR/2Q1n3/nR1bp1r1/1R1r4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 Kc7 g4 h5 f4 h3 b4 h2 d4 e3 d6+ Kb7 b6 h4 g5 a4 f5 h3 g6 e6 f6 e2 g7 e1B b5 a3 f7 a2 d5 Qd7 Qd3 Ra6 Na3 Nh6 Kf6 e5 g8B e4 Qc3 e3 Rb1 a1B Bb2 Qc6 Nf3 Rh7 Nc4 Bf5 Nfe5 Rg7 Ng4 Bd2 Bd3 Qc8 d7 e2 d8R Nc6 d6 Nb4 d7 Na2 Re8 Bd6 f8Q Bc7 Be6 Bd8+ Qe7 Qa8 Rh8 Ra7 Nf2 Rg2 Ng4 Ra4 Kg7 Qa6 Qh4 B8g5 d8Q Rb4 Nf2 Ng4 Kg8 Ne3 Rh5 Rb3 Ng4 Ra3 Rhf1 h1N Rf4 h2 Rd4 Nf2 Qe7+ Kb8 b7 Ka7 Nd6 h1Q Bdc4 Nd3 Re4 Ndb4 Qh3 Kb6 b8R+ Ka5 b6 Rb3 b7 Kb6 Ra8 Qf1 Rf4 Qf3 Qh4 Qc6 Qh7 Bd8 Q4e7 Qab5 Ra4 Qa6 Rf3 Qcb5 Rfh3 Ra3 R3h4 Rb3 Qch8 Rd3 Qc3 Rd5 Ra3 Rd4 Rb3 Rd5 Qc1 Rd3 Bh8 Bf6 R3b2 Bg5 Qc2 Be1 Qc1 Rd1 Qc3 Bd2
KB1Nr3/BP1BN2p/3Q1b2/4QN2/r4nqR/pnq4r/k4Nnn/1R2Rb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 g5 c5 d6 f5+ Kd5 a4 e4 h3 d7 f3 g6 a3 b6 f2 g7 h2 e5 c4 e6 c3 e7 c2 e8Q Kb3 Ne2 f4 Be3 f3 Nbc3 Ra6 Rb1 Qc7 d8R Qa7 Ne4 Bb4 Bh3 f1N N2g3 Nd7 Kc6 f2 d5 Ra4 d6 Nc5 d7 Nf6 g8N Ka2 b3 Bd2 b4 c1Q b5 Qc3 Qe5 Qaa5 Ne7 Qab4 Kc7 Nb3+ Kb8 Rf8 b7 Nh5 Ba7 Ne3 Re1 h1R Ka8 f1N b8B Re8 b6 Ba6 b7 Ng2 Nf2 Bg5 Be6 Bc4 Ngf5 Bf6 Rc8 Rh2 d8N Rh3 Qdd6 Nh2 Bd7 Bf1 Rc5 Qh4 Rc4 Qg5 Rg4 Nhf4 Rh4 Qg4
1q3NN1/Pr6/1bK4B/1p2rb1B/QQ1qn1R1/2p1RN2/n1Q2B2/rQr2n1k w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Ke4 e5 d4 c5 g4 b5 f4 h5 a4 b3 a5 c4 f6 h3 f7 c3 a6 b2 f5 h2 f6 h4 g5 h3 a7 Qa5 g6 Na6 g7 Qa3 Qa4 Bd7 Nf3 Re8 Be2 Qb4 Nbd2 b1R Rg1 h1N Rg4 h2 Ra2 Be7 f8N Bd8 f7 Rh7 Rc2 Ra1 Rb2 Nh6 g8Q Nf5 Qg6+ Be6 Qc2 Ne3 Ra2 Nf1 Qb1 Kc7 d6+ Kc6 d7 Bb6 d8Q Qc4 Qc2 Nb4 Qh4 Qc5 Ra4 Na2 d5+ Kd6 Rg3 Qc7 Qhg4 Qb8 Bd1 Kc5 d6 Bc8 d7 Nf2+ Kf5 Kd5 Ne4 h1Q Bh6 Re6 d8B Qg1 Bh4 Re7+ Kf6 Bf5 Rh3 Rg7 Qh7 Rg5 Rb4 Rb7 Qf4 Nd3 Bf2 Nc5 Rg3 Rh5 Rg4 Rc1 Rb2 Rh1 Qb1 Rh5 Re2 Rg5 Re3 Rh5 Nd6 e4 Ne8 Rg5 Re1 e3 Qa4 e2 Qg6 Bd7 Qgc2 Ne4+ Ke7 Rh5 Ng5 Rh1 Nf6+ Ke5 Ng8 Bf5+ Nd7+ Kd5 f8Q Rh5 Nf3 Rh1 Bh4 Qd4 Bf2 Ne3 Reg1 e1R R1g3 Nf1 Qbb4 Ra1 Qbb1 Bd8+ Ke8 Rh5 Be2 Rc1 Qfb4 Rg5 Nf8 Rh5 Nd2 Rg5 Re3 Ke5 Rgg3 Kf4 Nf3 Bc7+ Ke7 Bb6+ Nd7 Nfd2 Nh2 Nf1 Bh5 Bg6 Nf3 Bh7 Ke6 Bg6 Nf8 Bh7 Bg7 Rd5 Rg6 Rf5 Bh6+ Rg5 Bg1 Kg3 Bf2+ Kg2 Rg7 Kh1 Rg6 Rf5 Rg4 Qg7 Ne5 Qf6+ Kd5 Qfd8+ Kc6 Qd4 Nf3 Re5 Nf6 Bg6 Ng8 Bf5
5R1q/Pp2NRn1/Nq4B1/1B2nrk1/2NBp1b1/r1Q3Rq/1b6/1K1qQB1b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kf7 Kd2 Kg6 Kc2 c5 g4 e5 f4 h5 a4 e3 a5 e4 f5+ Kf7 a6 c4 d6 h4 d7 e2 g6+ Kf6 g5+ Ke7 a7 e1Q g7 c3 f6+ Kf7 d5 Kg6 d6 h3 f7 h2 Bb2 Qf6 d8Q Qef2+ Nd2 b3+ Kb1 Rh7 d7 Nc6 Ne2 Rh6 Rg1 h1B Ng3 Bf3 Nf5 Bg2 Qc7 Bh1 d8N Qf3 Qe1 Qh3 Nc4 Ba3 f8R Nge7 g8B Qh8 Rg3 Ne5 Ne6 Rh4 Nc5 c2+ Kc1 Rf4 Na6 Rf3 Bh7+ Kh5 g6 Bd7 Nd4 Nf5 Nc6 Ng7 Ne7 Bg4 Qca5 Kg5 Qac3 Rf5 Rf7 Rg8 Ra2 Nh5 g7 Rf8 g8B Ng7 Ra1 Rd8 Bg6 Rd3 Rf8 Rdf3 B8f7 Re3 Be8 Rd3 Bb5 Rdf3 Kd2 c1Q+ Ke2 Qe3+ Kd1 Qb6 Kc1 Rd3 Kb1 Re3 Qd3 Ref3 Bd4 b2 Qdc3 Rd3 Kc2 Re3 Rd1 Rd3 Rd2 Rdf3 Rf2 b1Q+ Kd2 Qa1 Kc2 Bb2 Rf7 Qa4+ Kb1 Qd1+ Qc1+ Kh4 Rf8 Ra3 Rff3 Rg5 R3f6 Rf5 R6f7 Qb3 Qc2 Kg5 Qcc3 Qd1+
1q6/pB1kn3/R2br3/2n2q1p/rB2qPn1/1Q2N1N1/3BKNbR/3nRQB1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 c5 b4 e5 g4 h5 f4 c4 d6 h3 g5 h2 b6 e3 b7 c3 b5 e4 d5 e2 g6 c2 b6 Qg5 d7+ Kd8 g7 Qe7 Nc3 Qe6 Bg2 Rh7 Nh3 Qe8 Bd2 c1Q Ra6 Nf6 g8N Rh6 Ne7 Nc6 b8B Qb1 b7 Ng4 Nf2 Re6 Bd6 Rb8 Nf5 Ne7 Bb4 Kc7 d8B+ Kd7 Rf1 h1N d6 Qf7 Ng3 Qf5 Nd5 Qb2 Nh3 Nhf2 Ne3 Qb1 Qc1 Nd1 Bb6 Qb3 Nf2 Qb2 Bdc3 Qb3 Kd2 e1N Ke2 Nd3 Re1 Nc5 Bd2 Qb1 Nd5 e3 Be4 Kc6 d7 Kd6 d8Q+ Bd7 Qe8 Bc6 Qf7 Kd7 Qc4 Re8 b8R Qb2 Qb3 Qbe5 Rc8 Qb8 Qf6 Rd8 Qh4 Ba8 Qh3 Bc6 Qf1 Re8 Kf3 e2 Ne3 Ba8 Bb7 Re4 Ba3 Ra4 Rc6 Bg7 Rg6 Be5 Bab4 Bd6 Re6 Rg8 Re4 Rg6 Rc4 Re6 Rc2 Nb2 Rb1 e1Q Ra1 Qc1 Ke2 Nd1 Rb2 Qcc2 Rba2 Nb2 Re1 Qce4 Nfh1 Qe8 Bc6+ Kc8 Bc1 Qd8 Kd2 Qf3 Ng2 Nd7 Bg1 Qh8 Ne3 Nd1 Be4 Bd5 Kd3 Ba8 Rh2 Nc5+ Kd2 Qhf8 Nf2 Kd7 Bd5 Qg2 Ke2 Qb8 Bcd2 Qh1 Bc4 Be4 Bd5 Qg2 Ba8 Bc6 Bb7 Qgd5 Nfe4 Qde5 Nf2 Bg2 Ba3 Qfe4 Bab4 Q5f5
R2KN1Q1/pk5n/n2qR1P1/1p1Nb3/1RB5/5R1b/q3bBnN/nB2Q1rr w - - 0 1 illegal: No proof kernel
2b1KQR1/1q2r2Q/2n2r1b/4Q3/Rrr1N1P1/p3Rr1Q/3rBNBp/4Bnk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 e4 f5 g4 h5 b6 c6 b7 a4 d6 h3 d7 h4 Ke6 Kd4 Kf7 c5 b4 f3 e5 h2 e6 f4 b5 f2 b6 f3 e7 c4 e8B h3 Be2 f1R Qb3 f2 Nc3 Ra7 Ne4 Nc6 b8R c3 b7 c2 d3 Rd1 Bd2 c1R Be1 Qb6 d8Q+ Ke3 Qc7 Nge7 d4+ Rd3 d5 Nf5 d6 f1R d7 Rf3 d8Q Bh6 Ra8 Rc4 b8Q Qb7 Qd5 Rg8 Qe5 Rg6 Bd7 Ng3+ Ke8 Rd6 Bf5 Rb4 Qh7 Rf6 Be6 Nf1 Bd5 Rc4 Qbd6 Rb4 Qf8 a3 Rc1 Raa4 Rc3 Rc4 Ra7 Rab4 Ra4 R3f5 Nf3 Rf4 Nf2+ Rfe4 Ng5 Rf3 Rg1 h1R Rg3 h2 Rh3 Rg1 Rh5 Rf6 Rh4 Rg2 Rh5 Bg7 Rh6 Rg3 Rg6 Bh6 Rg8 Rgf3 Qe6 Re5 Nge4 Kf4 Qee7 Rd2 Re3 Re6 Nd6 Kg3 Nde4+ Kg2 Qc3 Bf4 Qe5 Kg1 Qh3 Rd6 Qef7 Bh6 Qh7 Rd7 Ng3 R3f5 Bg2 Rf3 Nge4 Re7+
1k1NbQQ1/1bq1Rrbb/Bp2Qr2/2p4B/6N1/1Pb1n2Q/RB1K3b/2n2R2 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 f4 Kd7 d4 h5 g4 a5 g5 c5 b3 Kc7 d6+ Kb8 g6 e5 d7 h3 d5 b6 f6 h2 f5 h4 d6 e4 g7 a4 f7 h3 f6 a3 Bb2 e3 Qh5 e2 Nc3 Qc7 d8R Ka7 d7 Rb8 Kd2 Rb7 Nd5 Nh6 g8B Bd6 f8Q Kb8 f7 Ng4 Nb4 Ne3 Qfh6 Nc1 f8Q a2 Qe6 Rh6 Re8 Rf6 Nf3 Be5 Rg1 h1B d8Q Bh2 Ne5 Bc6 Re7 Be8 Bf7 Ra7 Qdd5 Bb7 Qg2 Be4 Qgg8 Bh7 Ng4 Rb7 Rg2 Ra7 Rb1 a1B Qh4 Rb7 Bh5 Ra7 Kc3 e1B+ Rd2 Bf4 Ba6 h2 Qh3 h1B Nc6+ Ka8 Nd8 Kb8 Qe5 Bh2 Qf5 Bb7 Qfe6 Bh4 Re2 Bg5 Rf2 Bh6 Rc2 Bg7 Kd2 Nd3 Rf1 Nc1 Bd3 Ra4 Ba6 Raf4 Rc4 Rf7 Ra4 Rf3 Ra2 R3f6 Ba3 Bae5 Bb2 Bc3+
1RB4R/4b1k1/pb1p1bb1/K2R2Nr/QB1b4/2qP4/B1n1Bnr1/1NQ2b1N w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 b5 cxb5 Nc6 a4 Nb4 g4 hxg4 Kf2 Nc2 a5 Bb7 a6 Bxa6 Ra2 Bb7 Ra1 Bc8 h4 g5 b4 c5 e4 f5 Ke2 Kf7 Kd3 f4 Kc4 d6 b6 f3 Kb5 g3 h5 a6+ Ka5 g4 h6 g2 h7 c4 d3 g3 e6+ Kf6 e7 c3 e8B f2 b5 Nh6 e5+ Kg7 e6 Qg5 e7 Be6 b7 Na3 b8Q c2 Nh3 g1B Qc7 g2 Bd7 Qf6 e8B Qg5 Bd2 c1B Qa4 Ra7 Bb4 Bb2 Bc8+ Be7 Bf7 Qe5 Be2 f1B Nf2 Bf5 Qc1 Ng4 Ba2 Qc3 b6 Bg6 b7 Nc2 b8R Rg8 h8N Rd7 Nd1 Bd4 Nf2 g1B Nf7 Rc7 Ng5 Rc5+ Qb5 Bdf6 Rh8 Rf5 Nh1 Nf2 Nh7 Rh5 Ng5 Qc6 Qa4 Bbd4 Bf7 Qc3 Ra3 Qa1 Rc3 Qa3 Rc5 Qc3 Ba2 Rh2 Rd5 Rg2 Rh4 Rh8 Re4 Rh3 Rh4 Rhh2 Rh6 Rh5 Rh8 Nd1 Nf7 Ba7 Bf5 Bgd4 Bc8 Nf2 Ng5 Bab6+
K7/4p1rr/N1rnk2n/3qBpQ1/Bb5r/BN2R1N1/P2B2Q1/1bRRr2r w - - 0 1 illegal: No proof kernel
nbbRBNB1/2P1QR2/1q1N1KR1/1N5b/kp5b/2nr2Q1/1rpBb1N1/b7 w - - 0 1 illegal: No possible last move
kNbQRB1Q/4qKB1/4Nb1b/n7/r4rB1/1NPr2p1/1prb2R1/3BR1n1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 e5 Ke3 d5 f4 Kd7 a4 Kc6 h4 g5 c3 b5 a5 Kb7 h5 e4 Kd4 g3 Ke5 e3 h6 d4 h7 e2 f6 e1B f5 b3 f7 g4 f6 b4 Rh2 g2 Bh6 b2 Be2 g3 Nf3 g1B Bg7 d3 Nbd2 b1R Rg2 b3 Ng5 b2 Nb3 d2 Ne6 Qe7 a6+ Ka7 c6 Bd4+ Kf5 Rc1 Kg6 Nh6 c7 Nc6 Bg4 Rg8 h8Q Rc2 Rc1 Na5 Rb1 Bd7 c8R Nf5 Re8 Bc8 Rc1 Kb8 a7+ Kb7 Ra1 Be5 Rb1 Nd4 Rc1 Nf3 Ra1 Rb8 a8B+ Ka7 Bd5 Ng1 Bdf3 Rb4 Rb1 Ra4 Be2 Ka8 Rc1 Qb4 Rb1 Be7 f8N Bf4 f7 Bh6 Nd7 Bf6 f8B Qe7 Nb8 Rf4 Qc1 d1R Qd2 Ra4 Qd8 Rd3 Rc1 Bed2 Re1 Bhe3 Bd1 Rf4 Qh5 Rh8 Qe5 Rh4 Qh5 Ra4 Qh7 Bh6 Qh8 Qa3 Kf7 Qc5 Bge2 Rhf4 Bg4 Qe7+
1b2r2k/1QQbB3/KRB1Nr2/n3nQ2/6P1/2npr1nr/3RBN1p/3q2NB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 a5 e4 f5 g4 Kf7 c4 Kg7 b4 h5 b6 h4 g6 f3 c5 f2 b5 a4 c6 f4 c7 f3 e5 h3 e6 a3 b7 a2 b6 h2 e7 Be6 e8B Ra7 c8Q Bb4 Nc3 Ra6 Be2 f1R Ba3 f2 Qc7+ Nd7 b8N Ra8 b7 Bd6 Rb1 a1R Rb6 Ne7 Qc2 Rae1 Nd1 Nc6 Na6 Na5 b8Q Bg3 Qbb7 Rh3 Bb4 Kh8 Be7 Rc8 Nc5 Ne5+ Kd2 d3 Kc3 d4+ Kb4 d2 Kb5 Bf4 Qf5 Bd7+ Ka6 Bg3 Ne6 Bf4 Nb2 d1N Nd3 Nc3 g7+ Kg8 Bd1 Ree3 Be2 Bg3 Qf7+ Kh7 g8B+ Kh8 Qf8 Re1 Qff3 f1N Qf5 Bf4 Nf2 Ng3 Bgf7 Rf1 Bg8 Ba4 B8b5 Qd5 Bc6 Re8 Ng5 Qb3 Bgd5 d3 Ne6 Qd1 Nf3 Bh6 Rg1 Bg5 Rg2 Bf4 Ng1 Qc1 Be4 Qd1 Bcd5 Bd7 Bc6 Rf3 Bed5 Re3 Ne4 Nf7 Qcb8 Nd6 Qh5+ Kg8 Bf3 Bh6 Rd2 Bf4 Be2 Ndc4 Qd8 Bb8 Qdc7 Rf4 Nf2 Ne5 Bh1 Rf6 Qf5 Kh8
1r2b1Qn/bQ4B1/N1Rq4/k4B1r/1n1PnQ2/4Rp1B/b1p1KbNR/B6n w - - 0 1 illegal: No possible last move, all moves rejected
1B1r1K2/2r3nB/b1Qn4/R1p2n1n/3Q1Q2/bp5r/NP1R1q1N/k3BRRr w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 Ke2 Kf7 Ke3 h5 Kf4 b5 Ke5 a5 d4 h3 f4 h2 g4 b4 g5 h4 f6 a4 f5 a3 d6 h3 d7 Ba6 d5 Nh6 d6 Nc3 Qe2 a2 Qe3 Ne4 Qd4 c6 Be2 Qb6 Nc3 Rd8 Bf4 b3 Rf1 a1R Nf3 Rc1 Rhg1 h1N Nh2 Nhg3 Na2 Nh5 Bd3 Ng7 Bg3 e6 Be1 Rc3 Qd5 Qf2 Qc4 Rc8 d8B Rc7 d7 Ba3 Qd4 c5 Bb1 Nd6 g6+ Kg8 f7+ Kf8 Kf6 e5 Rg5 e4 Rgg1 e3 Bc2 e2 Bd3 Rb7 Bc7 Rg8 Bb8 Rc7 Be4 Re3 Bd3 Rh8 d8R+ Re8 Kg5 Ke7 f6+ Ke6 f8Q Nhf5 f7 Rh6 Rd7 Rd8 Qh8 Rh7 f8Q Rh4 Qf4 Kd5 Kf6 Rh7 Be4+ Kc4 Qe8 Rh5 Bd5+ Kd3 Bg8 Kc2 Bh7 Kb1 Qe6 Ne4+ Kf7 Ka1 Qee8 Ned6+ Kf8 Nf7 Rd2 N7d6 Qg8 Rh4 Qd5 Rh5 Nf3 h2 Qdd4 h1N Nh2 Rdd7 Qee4 Rh3 Qed5 Nhg3 Qc6 Nge8 g7 Nh5 g8R Rd8 R8g6 Neg7+ Qe8 Ne4 Rb6 Ned6 Rb5 Qf3 Ra5 Qe3 Bg3+ e1R Bh4 Rd1 Be1 Qf2 Rg4 Rg3 Rh1 Qg2 Bf2 Rg1 Be1 Qf2 Rg5 R1g2 Rf1 Rg1 Rg6 Rd3 Rg4 Rh1 Rgg1 Rdd7 Qee4 Rh3 Qc6 Rd8+
b1n2K2/k3N1nN/1RBbP3/NQbn4/5N2/1rn1p1B1/1qBp1R2/rQ3b1Q w - - 0 1 illegal: No proof kernel
1K2q2Q/3RN1Bn/r1ppB2b/bn3n2/Pkn1r1Q1/1Bb2B2/2R4N/1b3R1Q w - - 0 1 illegal: No proof kernel
k2r2Q1/Bbbq4/1PN2K1R/r2R2pN/Q2Qr3/3p2BB/nrb2NN1/bn6 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 Kd3 d5 h4 Kd7 c4 Kc7 b4 Kb7 f4 e5 b6 g5 f6 a4 c5 a3 f5 g3 h5 a2 h6 g2 h7 Ra3+ Nc3 Ka8 f7 Nc6 b5 Nge7 f6 Qd7 b7+ Kb8 Nh3 g1R Nf2 Na7 c6 Ra6 Bh3 Ng8 Nce4 Rf1 Ng3 Bd6 f8B Ne7 f7 Bc7 Nh5 Ra5 Qa4 Rd1+ Bd2 Rb1 Bf4 Rb2 Rad1 a1B Bg3 Rg8 Bg7 Re8 f8N Rd8 Rd2 e4+ Ke2 e3 Kd3 e2 h8Q e1R Ne6 Re4 Nef4 Nf5 Ng2 Nh4 Bf8 Nf3 Bc5 Bf4 Rdd1 Nd2 Qg7 Nb1 Rh2 Kc7 b8N Bb7 Rd2 Kc8 c7 Nc6 Ba7 Bd6 b6 Be5 Qf8 Bd6 Qf3 Be5 Qe3 Nb4+ Ke2 d3+ Kf3 d4 Nc6 Bf4 Rd1 d2 Qd3 Re6 Kg4 Na2 Qdc4 Be5 Kf5 Bf4+ Qd5 Re4+ Kf6 Bd6 Rf1 d3 Qdd4 d1B Re1 Rh4 Re5 Bc2 Rd5 Re4 Rh1 Ba6 Rh2 Kb7 Rh1 Ka8 c8Q+ Bb8 Rh2 Bb7 Rh1 Qg4 Qe6 Bf4 Qg8 Qd7 Be6 Be3 Ng7 Re5 Rh6 Bf4 Bh3 Re4 Nh5 Bc7
1k6/5rQb/pq1RQ3/1N3p1B/1R1b3R/3rb1Bb/rPQBN1Bn/n1K2r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 d4 h5 Kd2 c5 g4 Kc7 g5 f3 e5 c4 e6 f2 e7 h3 e8B c3+ Kc2 h2 g6 h4 g7 h3 Bg5 Nh6 g8Q Bc5 Kc1 c2 Ra4 Ng4 Nc3 Nc6 d6+ Kb8 d7 Rh7 b6 Nb4 d5 Bd4 b7 Qb6 Bg2 f1R d8R f6 d6 Rf7 d7 Rf3 Nge2 Rd3 Rf1 h1R Qg7 h2 Rf4 Rf1 Nb5 h1B Bh6 Nh2 Rh4 Rdf3 Bd2 Rd3 Bh3 Be4 Bg2 Bh7 Qe1 Nd5 Rb4 Ne3 Qd1 Rf8 Bg6 Rf7 Bh5 Rf2 Re8 Rf1 d8B Bcf5 Re6 Bh3 Rd6 f5 Bg5 Nc4 Be1 Na5 Bg3 Ra3 Kd2 c1B+ Kc2 a6 Bd2 Nb3 Kb1 Na1 Qc2 Rff3 Bc3 Bf4 Bd2 Ra2 Kc1 Rf1+ Be1 Bg1 Ra4 Qa5 Rf6 Ra7 Nbc3 Kc7 b8Q+ Kd7 Qe5 Kc8 Re4 Rad7 Rb4 Rd3 Rd6 Qb6 Nb5+ Kb8 Qd5 Bd4 Qe6 Rff3 Bf2 Bfe3 Bg3 Rf1+
2bN4/2qRr1p1/1NRN1Q2/BKQb1rP1/2Bb1B2/2pbnn2/3k1r1B/1r3R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Qc2 Nh6 Qf5 Ng8 Qg4 hxg4 e4 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 f5 h4 c5 b4 a5 d4+ Kd6 e5+ Kc7 e6 Kb6 e7 a4 e8R f3 d6 f4 h5 f2 h6 a3 d5 a2 h7 g3 d7 g2 d6 f3 Nd2 Be7 Rh6 Qc7 d8B Nd7 Nh3 g1R Ne4 Rg2 Bf4 Bf6 Re7 Bd4 Be2 Nb8 d7+ Nc6 Rf1 a1R Nd6 Nf6 Rg6 Re8 h8Q R8a3 Qf8 Ng4 Qf6 Rb1 Bh2 Ra4 Nf4 Ra5 Rf7 Re7 Nd5+ Ka7 b6+ Ka6 b7 Ne3+ Kd3 Rb5 b8B Ra5 Nb6 c4+ Kd2 Rf5 b5+ Ka5 Rh6 c3+ Kd3 Kb4 Rg6 Nc2 Bf4 Ka3 Kc4 Kb2 Bd3 Na1 Rh6 Ne5+ Kb4 Rh2 Bc4 Nc2+ Ka4 Ne3 Ka5 Qc5 Bdc7 Kc2 d8N Kd2 Ka4 Re6 Rd7 Re8 Na8 Qc6 Ba5 Qc7 b6 Re7 b7 Rg2 Nb6 Rh2 Rc1 f1B Re1 Bd3 Rf1 f2 Rg6 Qc5 Bc7 Be4 b8Q Bd5 Qa7 Nf3 Bb8 Qc7 Rh6 Rd1 Kb5 Ra1 Qb7 Rc1 Qc6 Rd1 Qc5 Re1 Rg1 f1B Rh1 Be2 Rf1 Rf2 N6f7 Ba8 Bh2 Qg3 Qfe5 Be4 Rc6 B2d3 Qf6 Bd5 Bd6 Qe5 Bc7 Qe6 Bce5 Qd6 Bef4 Qc7 Nd6 Rb1+
1n2br2/BQRpR1NQ/2Qb4/R4q1P/1nNr2B1/2pk2BK/Q4b2/1n2b2n w - - 0 1 illegal: No proof kernel
5RNQ/p1R5/bBKQ2q1/4B2R/2Q1n3/1np3n1/2B1rbP1/kN1nrbQb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 b4 h5 d4 f3 b6 c4 b5 h3 b7 h2 b6 h4 d6 f2 Kd5 h3 e4 Bg7 e5+ Kf5 e6 Nd7 b8B Qf6 e7 Nc5 e8Q Nb3 d7 Qg6 d8Q Nf6+ Kc6 Ba6 b7 Ne4+ Qd6 f6 d5 c3 Bd3 f1B Qf7 Re8 Bc2 Re6 Bc7 Rae8 b8R Bh6 Rb6 Be3 Ne2 Bf2 Rb7 Re5 Bb6 R8e7 Rg1 h1N Rc7 h2 Nf4 Ng3 Ra5 h1B Nh5 R7e6 Bce3 Re7 Bed4 R7e6 Ng7+ Kf4 Ne8 f5 Nf6 Re7 Bdc5 Re8 Bb4 Re7 Rc5 Ke3 Ng8 f4 Qfe6 f3 B4a5 Bfd3 Rf1 Kd4 Rb5+ Kc4 Bd4 Be2 Bab6 Re8 Rc5+ Kb4 Qc8 R5e6 Be5 R6e7 Nd2 Ka3 Nb1+ Ka2 Rb5 Ka1 Qd4 Be1 Qg1 f2 Qg4 Bd2 Qh4 Be3 Qh8 Bc5 Qe6 Bd4 d6 Be3 d7 Bc4 Rd1 f1N d8Q Bf2 Qdd6 Ne3 Rf1 Be2 Qc4 Nd1 Re1 Bd3 Re3 Be2 Rf3 Bf1 Rf8 Rd7 Qde6 Rd2 Qd6 Re2 Bf4 Nf6 Rh5 R8e3 Be5 Nfe4 Rcf7 Re1 Rc7 R3e2
2k2b2/4qR1q/n3n1N1/B1qRNB1r/bQ2N2p/1b2q2P/1KRpB3/2Bq1Q2 w - - 0 1 legal: proof: f4 c5 g4 e5 a4 b5 axb5 a5 d4 cxd4 Bh3 f5 Bg2 Ra6 Bf1 Rf6 Na3 exf4 Nb1 f3 Qd3 f4 Qd1 Rf5 gxf5 Bc5 Kd2 Bd6 Ke1 Bf8 Kd2 h5 c4 g5 Kc2 d5 b4 Kd7 e4 h4 f6 d3+ Kb2 d2 c5 d4 b6 f2 b7 a4 c6+ Kc7 b5 d3 h3 f3 e5 g4 e6 g3 f7 g2 e7 Nh6 e8B Be6 Bd7 Nf5 Nc3 Bb3 Ne4 Qe7 Be2 Ng7 Bf5 Rh5 Qf1 d1Q b6+ Kd8 Rh2 Na6 b8B d2 b7 Ne6 c7+ Kd7 c8R a3+ Kc3 a2 Kb2 Qc5 Bc7 Ba4 b8Q Bb3 Qe1 f1Q Qb4 f2 Nf3 g1Q Ba5 Qg5 Rb1 Qfg1 Qf1 Qge7 Rc7+ Kd8 Ne5 Qe3 Rd7+ Kc8 Rd5 Qg7 Rg2 Qh7 Rg3 Q3c5 Rc3 Qe1 Rc2 Qd1 Qe1 f1B Ra1 Bg2 Qf2 Qg1 Qf1 Qe3 Rb1 Bg7 f8N Bf3 Ng6 Bf8 Bd3 Bd1 Be2 Qf2 Ka3 Qf3 Rbb2 a1Q+ Ra2 Qd4 Ra1 Qdf2 Kb2 Qg4 Ra3 Ba4 Rf3 Qe3 Rf2 Qgf3 Bg4 Qh1 Rf7 Bb3 Bf5 Ba4 Rc3 Bdb3 Rc2 Qhg1 Qf4 Qe1 Qf1 Qd1
2n1Kq2/r2pR1Bq/2NPN1b1/4R1q1/1p2QNr1/b1kB1QB1/rRr5/r6B w - - 0 1 illegal: No possible last move
1Q2Q1bq/1N1B1bq1/p1q1RQ2/8/Pb1r1p1b/Qn2N1B1/B1R2b1K/k2n3N w - - 0 1 legal: proof: e4 b5 h4 c5 f4 g5 b4 gxf4 bxc5 d5 g4 dxe4 c6 a6 g5 Ra7 g6 Rd7 Ne2 Rd5 Ng1 Rg5 hxg5 Qc7 Bd3 Qa5 Bf1 Qd8 Kf2 h5 Kg2 e5 a4 Ke7 c4 Kd6 d4 f5 g7 h4 c5+ Kd5 c7 b4 g6 f3+ Kh3 b3 c6 e3 Qe2 f2 Bd2 f4+ Qg4 b2 Ne2 Kc4 d5 Kb3 d6 e4 d7 Nf6 g8N Bb4 g7 Nd5 Na3 b1Q Ra2 Qa1 Nb5 Nc3 Ng3 e2 Rc2 e1B Nh6 e3 Qf3 e2 Kh2 h3 Nhf5 Rh7 Bg2 f1B Nbd6 Bf2 Nb7 e1B g8B+ Bc4 Ne3 Bf7 Bf1 Rh6 Bb5 Nd1 Rf1 Qc3 Nh1 Rd6 Rg1 Qd4 Rg6 Qg7 Re6 Rd4 Bc3 Qe8 d8Q Nd7 Qf6 Nc5 Qg3 Bd7 c8Q Ka3 c7 Nb3 Qb8 Qef8 Rb6 Bde6 c8Q Qe8 Qf3 Qc6 Qe8 Bh4 Bd2 Bef2 Be1 Bc4 Rc3 Kb2 Rc2+ Ka1 Qg3 Qc8 Bd7 Bcd5 Re6 Qc6 Bh7 Bc4 Bd3 Bd5 Bc4 Bg8 Re4 Bdf7 Re6 Nd2 Ba2 Nb3 Qf3 Bfg3+ Kg1 h2+ Kg2 Bf2+ Kh3 Bg1 Bg3 Bf2 Qe4 Bg5 Qd3 Nc5 Qa3 Nb3 Qfe5 Bg1 Nf2 Bf6 Qf5 Bg5 Qf6 h1Q+ Kg4 Qhh8 Nh1 Bh4+ Kh3 Bf2 Kh2 Qg4 Nc5 Qg5 Nb7 Qgg7
n2Q1b1n/2RNn3/qp4bp/2R2b1Q/NBbRN1BB/K2rBb1P/2k5/4q3 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 Ra6 Bf1 Rf6 Qc2 exf4 Qd1 f3 Qc2 f4 Qd1 Rf5 gxf5 Qe7 Nh3 Qg5 Ng1 Qd8 a4 Kd7 e4 Kd6 d4 c5 Kd2 g5 Kc2 b3+ Kb2 c4 h3 g4 f6 g3 f7 g2 a5 b6 a6 c3+ Ka3 c2 a7 f2 a8R f3 Ra4 h6 Be3 c1N Ne2 g1Q Ng3 b2 Nc3 b1B Be2 f1B e5+ Kd7+ d6 Ke6 Ra5 f2 Nge4 Kf5 d5 Na6 e6 Ne7 d7 Nc7 Na4 Nd3 d6+ Ne5 Rc5 Na8 Qd5 Bd3 Rac1 Bg2 Bh5 Qe8 d8B f1B d7 Bf3 R1c4 Qg3 Rd4 Qe1 Rh2 Qa5 Rhc2 Qa6 Rc7 Rg8 R2c5 Rg3 Bg4+ Kg6 Qb3 Bb1 Qd1 Bc4 Bh5+ Kf5 Qe2 Ng6 Bh4 Nh8 d8Q Bd7 e7 Bc2 R5c6 Neg6 Bg4+ Ke5 Qd1 Bf5 Qe2 Nf4 Rc5+ Nd5 Qd1 Bg6 Nc3 Bcf5 Ne4 Qc6 e8N Qe6 N8f6 Qe8 Bf2 Kf4 Nd7 Ne7 Be1 Ke3 Bb4 Bce6 Qf1 Ba2 Qb5 Bc4 Qa5 Ke2 Bd2 Kd1 Be3+ Kc2 Qb5 Bg7 f8B Ng8 Bd6 Bf8 Qc6 Qe5 Qd5 Ne7 Qf7 Bh7 Qh5 Bhg6 R5c6 Qea5 Bc5 Qe1 Bb4 Rg2 Rc5 Rd2 Rd6 Rd1 Rd4 Rd3+
n1q2K1R/2QpNn1R/1b2q3/1RpNNb2/k1b3b1/Bb1PQ3/6Bn/R5rB w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 a4 g5 h4 gxh4 b6 Ra6 b7 Rg6 b5 Rg5 b6 Rb5 axb5 a4 Kf2 f5 Kf3 h5 g4 a3 e4 a2 d3 h3 g5 h4 g6 h2 e5 h3 e6 Ke7 g7 Kd6 e7 Kc5 e8N Kb4 Qd2+ Ka4 Qg2 Nh6 g8B Na6 b8R Nf7 b7 Bc5 Nd6 Bb6 Qb2 c5 Bd2 Nc7 Bc1 Na8 Qf2 Rh6 Qe2 Rg6 Bg2 Qe7 Qe1 Qe6 Qe3 Rg7 Ba3 Rg6 Ke2 f3+ Kf2 f4 Nf5 Rg4 Ne7 Rg6 Bh7 Rg4 Be4 Rg5 Ke1 f2+ Ke2 f1N Nf3 Rg7 Ne5 f3+ Ke1 f2+ Ke2 Rg8 Kf3 Rg7 Kf4 Rg5 Rg1 h1B Bd5 Nh2 Nc3+ Ka5 Bdf3 f1B Ncd5 Be2 Rgc1 Ka4 Rc2 Bc7 b6 Bd8 Be4 Bg4 Rf2 Rg6 Rf3 Bf5 Rg3 Rg8 Rg7 Bc7 Rh7 Bd8 Bf1 Bf3 Bg2 Rg7 Bh1 Rg1 Bg2 B3g4 Bh1 Nh6 Kg5 Bc7 Beg2 Bd8 Rc1 a1Q Rd1 Qa2 Ra1 Qg8+ Kf6 Nf7 Nf4 Qe8 Kg7 Qe6 Nfd5 Nf1 Be4 h2 Bhg2 h1B Bef3 Nh2 Be4 Nc7 Ra8+ Kb5 b8R Ba6 b7 Ka4 Bef3 Kb3 Be4 Bc4 Ra5 Na8 Rb5+ Ka4 Rc8 Bh3 b8Q Bb6 Qc7 Bhg4 Rb8 Qc8 Bef3 Qa6 Rbh8 Bb3 Kf8 Bc4 Bf1 Bg2 Be4 B2h3 Bfg2 Qc8+ Qd8 Bd1 Bh1 Bhg4 Beg2 Qb7 Qb8 Bdb3 Qc7 Qc8+
K1N1B1RQ/2n1B3/2bpBb2/N4b2/1Bp2NR1/b3Q1b1/k1nP1qn1/q2r2Q1 w - - 0 1 illegal: No possible last move
B2B4/b1p1n1N1/1Q1N1RqK/qqNb2R1/1B2Q2p/R1P4b/1kr5/b2b2Rn w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 d5 h4 dxe4 h5 Ra6 g5 Rg6 hxg6 Bg7 Rh2 Bh6 Rh1 Bf8 Ke2 Kd7 b4 Ke6 d4 Kd5 g7 Kc4 d5 e5 g6 h5 d6 f5 b6 e3 Kf3+ e2 d7 a4 b7 a3 b5 e4+ Kg2 e3 Kf3 a2 b6 Qf6 d8B Na6 b8Q Ne7 g8N Nb4 b7 Be6 g7 Qg6 Bd2 Nd3 Bg2 e1Q Nh6 e2 g8R Nf2 Bb4 Qf1 Nf7 e1Q Nc3 Bd5+ Ne4 h4 Qb1 Rh6 Nh3 Rh5 Bd6 Qa5 Bb4 Bg7 Rg1 Bd4 Qa8 Ba7 b8R Rg5 Bh1 Rg2 Nd6+ Kd4 Rc8 Qfb5 Ng5 Rh2 Qb3 Rg2 Raf1 a1B c3+ Kd3 Qc6 Rh2 Qbc4+ Kc2 Ra8 Kb2 Ne6 Rg2 Ng7 Rh2 Bg2 Nh1 Bh3 Rd2 Bg2 Rc2 Qb6 Rc1 Ke2 f3+ Ke3 f2 Nc5 Rc2 Qe4 f4+ Kf3 Qh6 Kg4 f3 Qa6 Qf6 Kh5 Qe6 Qb6 Qf6 Rd1 f1B Rd2 Qf7+ Kh6 f2 Rd1 Be2 Rdf1 Bd1 Bf3 Qf5 Rg5 Be2 Rfg1 f1B Rf8 Bd1 Rf6 Bb8 Ra7 Bh3 Ra6 Qa2 Ra3 Ba7 Bh5 Qb1 Be8 Qa5 Bc6 Qf1 Bb7 Qfb5 Ba8 Rh2 Qe3 Qf5 Qe1 Rc2 Qe4 Qg6+
6N1/1q4nr/Kp1N1Qr1/1Pk3rB/b1B1qp2/2BqN1N1/2bb3Q/R4QRq w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 Nd7 a6 b6 Rh2 Nc5 Rh1 Nb7 axb7 Qf6 Nc3 Qd6 Nb1 Qd8 b8Q Ke7 g4 Kd6 e4 f5 Ke2 h5 Kd3 a5 Kc4 h3 Kb5 a4 b4 h4 d4 a3 g5 h2 g6 h3 g7 a2 Bd2 f3 Bc4 f2 Be2 f1B Qc1 Nf6 g8N Rh7 Na3 Nh5 Bc4 Ng7 Bc3 Bd3 Ne2 Bc2 Rg1 h1Q Ng3 h2 Qf1 f4 e5+ Kd7 d6 c5 d5 Qe4 Qb7+ Qc7 Qa7 h1Q Qa6 Qb7 e6+ Kd8 e7+ Kd7 Qa7 Qd3 Qa6 Qhe4 Qg2 Ra7 Qe2 Rh5 Qh2 Rg5 e8B+ Kd8 d7 Kc7 d8N Kd6 Raf1 a1R Bh5 Bg4 Rc1 Bgd1 Rb1 Ra2 Ra1 Rb2 Nb1 Rg6 Nd2 Be7 Ndf1 Bh4 Ne2 Be1 Neg3 Bd2 Ne3 Bb3 Nc6 Bdc2 Nd4 Rb1 Qa2 Re1 Qb1 Re2 Qf1 Rg2 Nge2 R2g5 Ng3 Qc8 Be2 Rb7 Bh5 Ba4+ Ka6 Qc7 b5 Qb8 Bb3 c4 Ndf5+ Kc5 d6 Rf7 d7 Qc7 Be5 c3 d8Q Bb1 Bc4 c2 Qe1 c1Q Qf6 Ne8 Rf1 Rh7 Bc3 Ng7 Nd6 Bbc2 Qef2 Qd7 Rh1 Qg1 Qf1 Qgg2 Rg1 Qh1 Qhf2 Qf7 Qh2 Qfb7+
r1R4n/k2NbpQ1/2r1Q1q1/BB2qP1b/bN1r4/p2B4/KNq1RB2/bR6 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra4 Na6 Ra2 Nb4 Ra3 cxd4 Ra1 d3 Bg5 d4 Bc1 Nd5 exd5 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 Kd7 b4 Kc7 c4 Kb6 g4 e5 f4 h5 c5+ Kb7 g5 a5 b6 a4 f5 h3 d6 e4 c6+ Ka6 g6 h4 d7 h2 b5+ Ka5 g7 a3 b7 Kb6 b8R+ Bb7 c7 h3 c8B Be7 Ne2 Qc7 d8B Rh6 Ra2 Ka7 Qe1 Rc6 Nbc3 Qe5 Nf4 e3+ Kd1 d2 Kc2 d1Q+ Kb1 d3 Na4 e2 Nb2 d2 Ba5 Qa4 Bd7 d1B Rc8 Qc2+ Ka1 Ba6 Nd3 Bb7 Rg1 h1Q Nb4 h2 Bf4 Qf3 Bg3 h1R Bf2+ Qfe3 Be8 Rh4 Bd7 Qb6 Be8 Nh6 g8Q Rd4 Qg7 Ng4 Bd7 Rh6 Rh1 Qg6 Be8 Bf3 b6+ Kb7 Bb5 Bc6 Qc3 e1B Qb3 Bc3 Qe6 Be2 Bd3 Ba4 Bb5 Bf3 Bfd3 Be2 Rb1 Bf3 Rc7+ Kb8 b7 Ka7 b8N+ Bb7 Rg1 Qg5 Nd7 Qef4 Rc4 Qcd2 Rb1 Bf3 Qeg6 Ne5 Rc8 Bh5 Qc6 Qd1 Qc4 Rc6 Qe6 Bd2 Nc4 Bc3+ Rb2 Ng6 Qh6 Nh8 Qg7 Qe5 Ka2 Qg6 Re2 Ba1 Nb2 Qc2
8/pq1N1Bn1/3kB1r1/P1n1pqb1/2K3R1/NQ1N2Rq/2q1n2B/QRrN1r2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kd7 c4 h5 f4 e5 d4 b5 a4 h4 a5 e3 Kd3 e2 d5 e1Q g5 h3 c6+ Ke7 c7 h2 c8R b4 d6+ Ke6 g6 b3 d7 b2 f5+ Ke7 g7 Na6 c5 Qc7 d8N Qd7+ Kc4 Nf6 g8Q Qf2 c6 Rh7 c7 Qf3 Nh3 g1R Ra4 g2 Bf4 Nc5 Nb7 Qfc6 Nf2 Nh5 Na3 Rg7 Qa1 b1N Nd1 Nc3 Be2 Rf7 f6+ Ke6 Qg3 Ng7 Bh5 Be7 Rg8 Rc8 Qf3 Rff8 f7 Bg5 Qd3 Qb6 Qdb1 Ke7 Qb3 Qf5 Bg3 Rf1 Bg6 Rfd8 f8N g1Q Bf7 Rd6 Nd7 Qg2 Rg1 h1Q Bh2 Qb2 Rb4 Qhf3 Rg4 Qbc2 Rb5 Qh3 Rg3 Nce6 Nbc5 Qb7 Nd3 Nc5 Rb6 Rg6 Rb4 Rd8 c8B Kd6 Qba2 Bc1 Rb1 Bg5 Qb3 Rf8 Nb8 Rd8 Bce6 Rc8 Nd7 Nh5 Rh8 Na2+ Qac3 Na4+ N7c5 Ng7 Rh4 Qe2 Qa1 Qef2 Rhg4 Qe2 Qb5 Rc7 Kb3 Rc8 Na6 Rc1 Nb8 N2c3 Kc4 Nc5 Qb3 Qc2 Nd7 Ne2+
1bR5/2Q1rN1Q/4qrrp/3r4/1k1nNBB1/bpr1R3/1bb2BRP/1Q2K1Q1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 Nc6 Bf1 Nce7 Nc3 exf4 Nb1 f3 Bg2 f4 Bf1 Nf5 gxf5 Qd6 Qa4+ Qd7 Qd1 Qd8 a4 Kd7 e4 Kd6 d4 c5 a5 g5 f6 b5 f7 c4 a6 g4 a7 h6 Ne2 g3 Bg2 b3 Rf1 c3 Bh3 b2 Rg1 c2 Ra3 b4 Nd2 b1R Re3 b3 Nc3 Qf6 Rg2 Bf5 Bg4 Rc8 a8Q Qe6 Qa7 Ne7 Qa1 Bg7 f8Q Rg8 Qf7 Nc6 Qfa7 Bh8 Qh7 Rg6 Qa2 Rb2 Qa1 Re8 Qb1 Re7 e5+ Kd7 d6 f2+ Ke2 f1R d5 Rf3 Nb5 Nd4+ Ke1 Ra2 Ne4 Ra5 Rc3 Rd3 Rc8 f3 Bf4 Rc3 Qdc1 Bf6 Qe3 c1B Qg1 Rg5 Na7 Rg8 Nc6 Ba3 Nd8 Rg6 Nf7 Bg7 Nf2 Bc2 Ne4 Rac5 Nd8 Ke8 d7+ Kf8 d6 f2+ Kd2 f1R Nf7+ Re8 d8Q Rd5 d7 Rff3 Qb6 Ke7 d8B+ Kd7 Qg8 Re7 Qh7 Bh8 Qb8 Bf6 Bc7 Kc6 Bb6+ Kb5 Ke1 Kb4 Qc7 Bg7 Bg5 Rff6 Bf4 Qf5 e6 Bh8 Re2 g2 Ba7 Red7 e7 Qe6 e8R Re7 Qh1 g1B Rg2 Be3 Qg1 Bec1 Bb6 Bcb2 Ba7 Rff5 Bb6 Be5 Ba7 Rff6 Bb6 Ne2 Bf2 Nd4 Nd2 Qd6 Qd8 Rd7 Re7 Qa6 Re6 Bb8 Qc7 Qc6 Re3 Qe6 Ne4 Re7
4B1n1/r5b1/2K3Rp/NQ2Nb1N/R1qp4/1bQ1B2k/1qN1b1nP/2Rb1B1b w - - 0 1 legal: proof: f4 c5 g4 e5 b4 a5 d4 axb4 Bd2 f5 Be3 b5 Bc1 cxd4 fxe5 f4 Qd2 Ra6 Qd3 Rf6 Qd1 Rf5 gxf5 Qc7 Qd3 Qa5 Qd1 Qd8 Kf2 Kf7 Kf3 g5 Ke4 f3 Kd5 h6 a4 d3 e4 b3 c4 f2 c5 b2 c6 b4 f6 Kg6 f7 d2 a5 g4 e6 Kh5 e7 Kh4 e8N g3 c7 b3 a6 g2 a7 Bg7 a8R Nc6 f8Q Qf6 e5 Rh7 e6 Ne5 e7 Ng4 Qe2 d1B Nf3+ Kh3 Na3 b1B Rg1 b2 Qb5 Bbc2 Ra4 b1B Be3 Qb2 Qf6 Bb7+ Kd6 Bd5 c8N Bcb3 Ne5 Bf5 Na7 Bb7 Kc5 d5 Rc1 d4 Qfc6 Ba8 Nf6 Bb7 e8B Ba8 Bd3 f1B Nc2 Bfe2 Nh5 Bb7 Kb6 Ba8 Qc3 Bae4 Bg5 Ne3 Nac6 Bed5 Na5 Bb7 Rf1 g1Q Bf4 Ng2 Be3 Qf2 Rg1 Qf1 Kc7 Nh4 Rg6 Bh1 Kb6 Ng2 Kc6 Bh8 Ra3 Ra7 Ra2 Bg7 Ra4 Bc8 Bc4 Qf7 Bd3 Bf5 Bc4 Beg4 Bf1 Bge2 Kc5 Qc4+ Kd6 Qd3 Kc6 Qc4+
5BqQ/n2N2QN/1RQp2KN/qrq5/nb2p3/2nqP1R1/1R1nQ2r/2k4B w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 Kf7 Kd3 Ke6 Ke4 a5 f4 h5 c4 d6 b4 h4 g5 a4 b6 d3 f5+ Kf7 f6 Kg6 f7 e5 b7 h3 b5 a3 c5 h2 b6 a2 c6 d2 c7 Rh7 c8Q Ne7 Nc3 Nd7 b8R Ra5 b7 Bh6 f8Q Nc6 Nf3 g1Q Nd5 g2 Nf6 Na7 Qc6 Nb6 Nd7 Na4 Rb1 a1N Rb6 Qc5 Rg1 h1Q Qg7+ Kh5 Kf5 Rb5 g6 Nb3 Qc2 d1N Ng5 Ndc3 e3 Nd2 Bb2 Kh4 Qd1 Kg3 Qe2 Qg8 Kf6 e4 Ba1 Rh8 Nh7 Qhh5 Bb2 Qgd5 Ba1 Qd3 Kf7 Ncb1 Bf6 Qhe5 Be7 Nbc3 Bf8 Qh5 Qd4 Qhg5 g7 Qge5 g8N Bg7 Kg6 Bf6 Qd1 Kf2 Nh6 Bd8 Qg4 Ke1 Qf3 Qed5 Qg7 Qa2 Qf2+ Kd1 Be2+ Kc2 Bf3 Bh4 Qe2 Be1 Rd8 Kc1 b8Q Qaa3 Re8 Qa1 Re5 Qa2 Rg5 Qg8 Rg3 Qgd5 Rf1 g1Q Bh1 Qg8 Qba8 Qh2 Rf7 Qh4 Rf5 Qd8 Rd5 Qc7 Rd4 Qd8 Rb4 Qc7 Rb2 Qd8 Ra6 Qa5 Rb6 Qe6+ Nhf6 Nc4 Nf5 Nd5 Be7 Rh2 Nh6 Bb4 Qah8 Ndc3 Bf8 Qg8 Nh7 Nd2
4q1Q1/prQQ4/1N1q2nk/n3r1R1/QN5B/P1qr1p2/3bq1N1/RBr1R1K1 w - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 f4 c5 bxc5 gxf4 h3 Bf5 g5 Bg4 hxg4 Bg7 Bh3 Bh6 Bf1 Bf8 Kf2 f5 d4 Kf7 c4 Kg7 c6 b5 d5 e5 a3 h5 c7 h4 c8N h3 c5 f3 d6 h2 g6 b4 c6 b3 g5 f4 c7 b2 d7 e3+ Ke1 e2 Kf2 e4 Qa4 Bb4 Bh3 Nc6 Bf5 Nge7 Nb6 Rh3 c8Q Na5 Be3 Bd2 Nc3 b1R Qc7 e1R Ncd5 Rec1 Bc5 Qe8 d8Q Rb5 Ne2 Rb8 Be3 Rb7 Nb4 Re5 Re1 h1Q Qdd7 Qh2+ Kf1 Qg3 Bf2 e3 Bb1 Qh2 Bg3 f2 Bh4 Rf3 Bg3 Qh6 Bh4 Rh3 Kg2 Rf3 Kh1 f1Q+ Kh2 Qh3+ Kg1 Qe6 Ng3 e2 Nf1 Qhh8 Ne3 Qd6 Ng2 Qh5 N6d5 Rd3 Nb6 Kh8 g7+ Kh7 g6+ Kh6 g8R f3 g7 Ng6 N6d5 Qf5 Nb6 Qff6 Rf8 Qfe6 g8Q Qb3 Rf5 Qc3 Rf1 e1Q Rg5 Qe4 Re1 Qe2
1k3rR1/q1pQ2bK/1q2QR1N/QRnN1pBq/4q3/5B2/NQP1b2n/1n4n1 w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 d5 h4 dxe4 h5 Ra6 g5 Rg6 hxg6 Bg7 Rh2 Bh6 Rh1 Bf8 Kf2 Kd7 b4 e5 d4 h5 b6 f5 g7 h4 d5 h3 d6 e3+ Kf3 a4 b5 a3 g6 h2 b7 e2 b6 e1Q Bg2 a2 Qd2 Kc6 d7 Na6 b8Q Ne7 g8Q Bg7 b7 Nd5 Nh3 Nc5 Nc3 Qf6 Rg1 h1Q d8Q Qd6 Rb1 a1Q Qe6 Qa7 Rb5 Rf8 Na2 Nc3 Qde7 Nb1 Qa5 Bf6 g7 Qe4+ Kf2 f3 Kg3 f2 g8N Bh8 Bf3 Bg7 Nf4 Qh5 Nd5 Bd7 Nh6 f1N+ Kg2 Be8 Bg5 Nh2 Kg3 Bf7 Q7f6 Be8 Qbd8 Bd7 b8R Bc8 Rb3 Ba6 Qde7 Be2 R3b5 Qc4 Re8 e4+ Qfe5 Qd3 Kf4 e3 Qd8 Bh8 Re7 Bg7 Rf7 Qd4+ Kg3 Qe4 Rf6 Bd1 Qde7 e2 Q7f7 e1N Qfe7 Qb6 Q7d7+ Kb7 Rg2 Qc6 Qb2 Kb8 Rg1 Qd4 Rg2 Qg1 Kf4 Be2 Bh4 Qbb7 Nb6 Bh8 Rg8 Bg7 Be4 Qh1 Nd5 Qcb6 Bg2 Qf7 Be4 Qf3+ Kg5 Qd3 Bg2 Qe4 Bh1 Q7a7 Bg2 Qe8 Bh1 Qc8 Kg6 Nef3 Bg5 Qe8+ Kh7 Ng1 Bf3 Qh5
4n1b1/1kB1rBr1/1BpQ4/1rP1bp2/3r1R1Q/B3KbN1/2NnnnQ1/5N1R w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Qd5 g6 Qg5 hxg5 Ng8 Kf2 Kd7 d4 e5 b4 h5 c4 f5 c5 a5 g7 h4 g6 a4 d5 e3+ Kf3 e4+ Ke2 h3 d6 a3 b6 Kc6 d7 h2 d8B f3+ Ke1 a2 b7 e2 Kd2 e1R Bh4 f2 Ne2 Be6 Ba3 Bd6 Bd8 Nf6 g8Q Rh7 g7 Ra4 Qh8 Ne8 g8Q e3+ Kd3 Bd5 Qg2 Rg7 Ng3 e2 Nd2 Ra5 Rc1 a1R Rc4 Rb1 Rf4 Ra4 Qh4 Rb2 Qe4 Rb1 Bg2 f1N Bf3 Rb2 Bh5 Rb1 Qf3 Rb2 Qf2 Bg8 Bf7 Rb1 Rg1 h1B b5+ Kd7 b6 Kc6 Qfh2 Bf3 Rh1 Rb5 Q2h3 Re4 Qg2 Re7 Kd4 Be5+ Kd3 Nd7 b8B Nf8 b7 Ne6 Ba7 Nd4 b8N+ Kb7 Na6 c6 Ba5 Rb4 Bc7 Rb5 Qa4 Ra1 Bab6 Rd1 Nb4 e1N+ Kc4 Rb1 Qd1 Nd3 Nc2 Nf2 Kc3 R1b3+ Kc4 R3b4+ Kc3 Ne3 Ndf1 Ne2+ Kd2 Ra4 Ke1 Nc4 Qd6 Na5 Kd2 Rd4+ Ke3 Nb3 Qhh2 Nd2 Qhh6 Kc8 Qh4 Kb7
KB4N1/1bR4R/pk1NB1n1/2Rnnn1r/3Q3r/P3N1b1/5pb1/1Br1b1NQ w - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Qd6 h5 Qg6 hxg6 Nb8 Ke2 Kd7 d4 Kc6 c4 f5 g7 e5 g6 b5 a3 h5 Bg2 b4 Be3 b3 Qc1 a6 Rh3 b2 Nd2 b1N Nf1 Ne7 g8B h4 g7 Ng6 Be6 Bd6 g8N Rh5 d5+ Kb7 Bd2 e3 Kd3 e2 c6+ Kb6 c7 e1R Ne3 e4+ Kd4 f3 Rh1 Bf4 d6 h3 Kd5 h2 d7 f2 d8Q f1N Bc3 Nc6 Be5 Bg3 c5+ Ka7 Bf4 Nce5 c6 Nc3+ Kc5 Rd1 Qd4 Nd5 Ra2 Rb8 Rc2 Rb4 Qca1 Rc1 Kd6+ Nb6 Rc5 Nd5 Bh3 Kb6 Bg2 Bd7 c8R Rbc4 Rc7 Bc8 Bf3 Rb4 Bd1 Rbc4 Bc2 Ra4 Bg5 f4 Bb1 f3 Bf4 f2 Rg7 Nd2 c7 Ndf3 Rh7 Nfh4 Re7 Bd7 c8N+ Kb7 Na7 Kb6 Nb5 Bc8 Rec7 Nef3 Nd1 e3 Be5 e2 Ne3 e1B Bf4 Ka5 Kc6 Nf5 Be5 Bd7+ Kb7 Bc8+ Ka8 Kb6 Nd6 Rb4 Qd1 Rbh4 Bf4 Nfe5 Qad4 Nb4 Qf3 Nd5 Ra7 Ng4 Rf7 Rh6 Ra7 Rh3 Nb5 Rh7 Bb8 N4e5 Nd6 R3h6 Ne2 Rh8 Rac7 Rh3 Rg1 h1B Rg2 R3h6 Rh2 R6h7 Qh5 Bg2 Ng1 Rh6 Rh4 R8h7 Re4 Rh8 Qh1 Rh3 Rh4 Rh2 Rhh7 Rh4 Rhe7 R8h5 Rh7 Bb7+
1rBq1n2/n6r/Q1KB2NQ/5QRb/Rp2p2b/1B1r1n2/1p1NkP1R/Q4b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 g4 b5 a4 h5 g5 e5 a5 b3 d6 h3 a6 b4 d7 h4 f6 h2 g6 b2 a7 h3 f7 Ba6 d3 Rh7 g7 Be7 f8Q Nh6 g8B Nf7 Qh6 Bh4 Ne2 c6 d4+ Kc4 d5 c5 Rg1 h1R d6 h2 Rg5 Rg1 Ra3 Rg3 Bf4 Rd3 Ra4 h1B+ Bg2 Bb5 Bh2 Ba6 Nf4 Bb5 Nd2+ Kc3 Qf1 c4 Qg1 Kc2 Qf1 c3 Qa1 Bc4 Bf3 Bg2 Ng6 Bf1 Bg4 Bb5 Kf5 e4 Ke6 Ne5 Bf5 Nf3 Be5 Qf8 d8Q Nd7 Qa5 Rb8 a8Q Qd8 Q8a6 Be2 Bg4 Bf1 Bg3 Bc6 Qf5 Bb5 Qa3 Kd1 Qa1+ Ke2 Bf7 c2 Be5 Rc3 Kd5 Nf8 d7 c1N Bd6 Rd3+ Kc5 Bc6 Bb3 Na2 Bh3 Nc3 Bg4 Qe7 d8R Be8 Rc8 Bf7 Kc6 Nb5 Re8 Qd8 Re5 Bh3 Rc5 Bg2 Rc1 Bh3 Rh1 Bg2 Rh2 Bf1 Nh8 Bh5 Ng6 Na3 Qfa5 Nb5 Bc8 Nc3 Qd5 Nb5 Qf5 Na7+
N4NBQ/4R1bb/3nrkn1/NQ1n1p1R/1pB2r1r/B6B/P3p3/1b1RK1q1 w - - 0 1 illegal: No proof kernel
k5n1/5Qb1/1r2BN1p/8/K1B1pNrb/QbqpP1NB/nr3R1B/1Rn2R2 w - - 0 1 illegal: No possible last move, all moves rejected
Q3NbR1/B1QN1K2/1n2Bp1n/r2P3B/kb6/1pR2r2/3r1pnR/qb3NN1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Kg4 g5 Kf5 b5 d4 f3 e4 b3 a4 f6 Kg6 b2 h4 f2 d6 Kc6 e5 c4 d7 g4 a5 b4 e6 Kb5 e7 g3 e8N b3 a6 g2 h6 Be7 h7 Ba3 h5 Ra7 h6 Bd6 Qc2 Bh2 Be2 Qa5 d8Q Nd7 Be3 Nb6 Bh5 c3 Nd2 b1R Nf1 Rd1 Rc1 Bd6 Rh2 Rd2 d5 Be7 Kf7 Bf5 Qa8 Qa1 Bd4 Ka4 Bc5 Rc7 a7 Be4 Bd4 Rc5 Be3 Bf8 Bd4 Ne7 Be3 Rg8 h8R Ra5 h7 Rg3 Rg8 Rf3 h8N Nf5 Ng6 Bb4 Ne5 Nh6+ Ke6 Bd3 Nd7 Bg6 Qd8 Bd3 a8B Be4 Bb7 Bd3 Nh3 g1N Bc8 Ne2 Ng1 Bg6 Bc5 Nf4+ Ke7 Bh7 Qc7 Ng2 Qa2+ Kb5 Kf8 Bb1 Kg7 c2 Bd4 Na4 Ba7 Nb6 Kg6 Ng4 Kf7 Bf8 Re1 c1B Re3 Bca3 Rc3 Bac5 Nb8 Ba3 Be6 Ka4 Nd7 Bb4 Qb7 Bf8 Qc2 Bac5 Qa8 Bb4 Qc1 Rb2 Qf4 Rd2 Qc7 Nh6#
2Nq4/b4n2/3p4/kBnN2Q1/Nr2r1Nb/1PnrQ1Kp/p2R3R/BQ2Rb2 w - - 0 1 illegal: No possible last move
BK1N1k2/nQ2b2n/1PB2B1b/2p4b/1R5q/rr1N1Qp1/5Nnp/1N1Q1Rr1 w - - 0 1 illegal: No proof kernel
2Brnn1Q/1Q1N1kPK/rbp5/3Rr2R/1R3p2/bn1pNbNB/R6B/q7 w - - 0 1 illegal: No proof kernel
2bqBrQ1/4knPK/1p1n1bnr/1bQ2Q1N/B6p/BRB1NpR1/7R/7r w - - 0 1 illegal: No possible last move
R2R2n1/B4Qpb/2BB2QN/q3P1pn/1r2np2/2K5/B1QrNbb1/krR5 w - - 0 1 legal: proof: f4 b5 g4 e5 fxe5 c5 a4 h6 d4 cxd4 g5 hxg5 axb5 Bd6 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 b4 Ke6 h4 Kd5 c4+ Ke4 b6 f5 h5 a5 e6 d5 h6 a4 b7 d3 b5 Kd4 e4 a3 b6 a2 c5 f4 e5 Qd6 e7 Nc6 b8B Bg4 e8Q Bf3 h7 Nce7 c6 Qd8 c7 Bg2 c8B Nf5 b7 Ra4 Na3 Rb4 Nc4 Qa5 Be6 Ng3 Qc2 Bc5 Qf7 Nh5 Ba3 Ba7 Rd1 a1R Ne3 Rab1 Ng4 Bc5 Nh6 Bb6 Ke1 d2+ Ke2 Bc5 Ba7 Bb6 Qcg6 Kc3 b8R Bf2 Ra8 Kb3 Kd3 Ka2 Bd7 Ka1 Ne2 d4 Rc1 d1N Bc6 Nc3 Rd1 Rb8 Bd6 Ne4 Kc4 d3 Rc1 d2 Rh3 d1B Rd3 Neg3 Rd5 Rb4+ Kc3 Ngf6 Rd2 Rhb8 h8Q Ng8 Qhh7 Rd8 Rd5 Ba4 Qc2 Bb5 Qhg6 Bd3 Rd4 Bge4 Bh3 Bg2 Be6 Rd7 Ba2 Bde4 Be7 Rd5 Bd6 Bf5 Rc4 Rd2 Rd4 Bd3 Be7 Bde4 Rdd8 Bf5 Bd6 Bd3 Qge6 Bh7 Qeg6 Ne4+
QQRK4/1N3p2/Bb4NR/prrp1kn1/n1b3r1/Q5Q1/2Pb1q2/Nn1RB3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 Kd5 g5 e4 d6 h4 d3 b4 g4 b6 f3 h6 f2 h7 d2 e5+ Kg6 b5 g3 e6 g2 b7 Qb6 h5+ Kf6 h6 Nd7 b8Q Kg6 e7 Nc5 e8N Bg7 Ne2 g1B Nf4+ Kg5 Qf3 d1N Bd2 Bd7 Qa3 Nb3 Be1 Nb2 Ng6 Bc3 Nd2 Na4 Rd1 Kf5 Rh3 Qe3 b6 Be6+ Kc6 Nf6 Kc7 Rg8 h8Q Nh7 b7 Ng5 h7 Bc4 Kd8 d5 Rh6 Qf3 Be2 f1R Qg7 Bc5 h8R Qf2 Qf8 Ra6 Qg3 Rc6 b8Q Ba7 Qa8 Rc5 Qfd6 Rh1 Qdb8 Rh4 Bf1 Rg4 Be2 Nc1 Bf1 Na2 Nb3 Bd2 Na1 N2c3 Be2 Nb1 Bf1 Ba2 Be2 Rb4 Ba6 Rg7 Rf8 Bc4 Rfh8 Rbb5 Nd6+ Ke6 Nb7 Kf5 Ke7 Bb6 Rc8 Nh3 Ne5 Rg4 Ng6 Ng5 Ke8 Ba7 Kd8 Bb6+
1BN1B1N1/1Kpr4/b2Q1pnQ/1krR1b2/4bPp1/Q1Qq2n1/N1Rr1B2/n7 w - - 0 1 illegal: No possible last move
KNb2Qbr/1qb2r1B/2QBR3/1N1pR2R/N1N2pP1/3pr1k1/1B2n3/3q3n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 g4 h5 b4 d3 c4 f3 c5+ Ke6 g6 h4 g7 d6 b6 f2 c6 a4 c7 f6 b5 a3 b7 h3 b6 h2 Nf3 a2 Nbd2 Ne7 g8Q+ Kd7 Qc2 Rh4 Bb2 Ra5 Nd4 Ra3 Nb5 Rh8 Nc4 Nf5 Kd5 Ng3 e4 f5 e5 Nc6 b8B Nd4 b7 Nde2 Re1 a1Q e6+ Ke7 Kc6 Qd1 Bg2 f1R Be4 Bg7 Qc1 Be5 Qc3 Kf6 e7 Rf2 Qf8+ Kg5 e8R Kh4 Re6 Rf3 Qc1 f4 Bh7 Re3 Kb6 Rc3 Ka7 d5 Rhg1 h1B Ka8 Be4 Qc2 Kh3 Rh1+ Kg2 Rh5 Nh1 Qa4 Kg3 Qa6 Bg6 Qc6 Bd6 Ree5 Bf7 Re6 Bg8 Ree5 Bf5 c8N Bc7 N8b6 Bc8 Na4 Qf6 Re6 Qd4 Ree5 Qb6 Re6 Bd8 Bd6 Bc7 Na5 Rc4 b8N Rce4 Nc4 Re5 Rf1 Rf5 Rf2 Rf7 Rhe5 Rd7 Rh2 Rf7 Rhh5 Qb7+
1qk1r2b/2n4r/r1bRR1RR/n1pp1QN1/4qB1Q/p2b4/N2PQ3/2N1K2B w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 Na6 h4 gxh4 a3 Nb4 Ke2 Nc2 Nh3 Nxa3 Ng1 Nc2 g4 a5 b4 h5 f4 e5 b6 c5 f6 d5 b7 Kd7 b8R e4 f5 a4 f7 a3 g5 e3 g6 h3 b5 h2 g7 h4 b6 h3 b7 Qf6 Nc3 Bd6 f8Q Qd8 f6 Qa5 f7 Ra6 Bg2 Nd4+ Ke1 e2 Bb2 Rh4 Na2 Nb3 Be5 Nf6 g8R Qc7 Rg6 Na5 Bf4 Ne8 Ra8 Rh6 b8Q Rh7 Qb4 Bb7 Rb1 Qb6 Rd8+ Kc7 Qe4 Be5 Rdd6 Bh8 Rge6 Qa7 Rbb6 Bc6 Qf5 Qb8 Qe7+ Kc8 f8N Nc7 Qh4 Re7 Nh7 Re8 Kf2 e1R Ne2 Rg1 Bf3 Rg7 Ng5 Rh7 Rg1 h1B Nec1 h2 Ke1 Bg2 Qe2 h1Q Be4 Bf1 Rg4 Qh3 Bh1 Qd3 Rh6+ Bd7 Rde6 Qe4 Rbd6 Bb5 Nf7 Bc6 Rgg6 Qeb4 Ng5 Qe4 Qe3 Bc4 Qe2 Bd3
N3Q3/2Q2Nk1/1Bq1n1p1/r1n3Qr/bK2P1B1/1NbRrbBq/2p4p/2B3R1 w - - 0 1 illegal: No proof kernel
N1BQ4/b1BN1krK/4n1pp/2P1n3/5n1Q/1N2Rr2/R1Bq2p1/1qbbQ1B1 w - - 0 1 illegal: No proof kernel
2QR1qrr/2R1n3/3B1Pqp/Nk2r2B/p1R3Q1/3pn1Nb/2n2N1N/K3bQ2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 g4 Kd7 f4 a5 c4 e5 Kc2 a4 b4 e4 Kb2 d3 b6 Kc6 c5 h6 b7 d4 b5+ Kd5 g5 Kc4 g6 e3 b6 e2 c6 e1R f6 h3 f5 h2 f7 Re4 c7 Kc5 g7 d2 Nc3 d3 Qg4 d1Q Nf3 Kc6 Bf4 Re3 Ne2 Qg5 Ng3 Be7 f8Q Re6 Rc1+ Qc2+ Ka1 Bb4 Be2 Qc4 Bd6 Nd7 b8R Be1 b7 Qc5 Rc4 Ne7 g8N Qh5 Nf6 Qg6 Nfe4 Re5 Nf2 Nb6 Rg1 h1N Nh2 Bd7 Rd8 Kb5 b8N Nbd5 c8Q Nb4 Nc6 Rb8 Na5 Rg8 Nh5 Ng3 Bd1 Nf1 Ng3 Ne3 Bf3 Bd2 Rgc1 Be1 Bd1 Qb6 Rc7 Qc5 Rc4 Rh8 f6 Ra8 Qg7 Be6 Qe2 Bh3 Qf1 Rg8 Bh5 Nbc2+ Ka2 Qc6 Kb2 Qce8 Kb1 Qf8 Kb2 Qgf7 Qgg4 Qg6 Re8 Qff7 Qce6 Rh8 Rg8 Rf8 Qc8 Qfg7 Kb1 Rf7 Rd8 Qf8 Ka2 Rg7 Kb1 Rgg8 Kb2 Nd4 Ka1 Ndc2+
1NK1b2B/Q1r1NR2/r4p2/1k1B1qbB/4qQ2/3nB2p/pn2b1P1/Q2qRR2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Kg4 h5+ Kf5 c5 b4 h3 d4 h2 e4 a4 d6 c4 d5 c3 b6 h4 b7 a3 e5 a2 e6+ Ke8 b5 f3 d7+ Ke7 b6 Kd6 e7 Kc5 e8B c2 d6 h3 Bc4 f2 Ne2 f1B Nd4 Be2 Rf1 h1Q Nc3 Ra6 Be3 c1Q Nd5 Nc6 b8Q Bb7 Ne7 Nf6 Bd5 Qc8 Qa7 Nb4 Ndc6+ Kb5 Nb8 Bc6 b7 Qc2+ Ke5 Qh7 d8R Nh5 d7 Nf4 Kd6 Qe4 Qdd4 Nfd3 Rae1 Rh7 Qa1 Bh5 Bd4 Be2 Bh8 f6 Bh5 Bh6 Rf8 Be3 d8B Nb2 Rf7 N4d3 Bb6 Qcf5 Kc7 Bg5 Be3 Be8 Nbc6 Rg7 b8Q+ Ka4 Kb7 Kb5 Qf4 Rh7 Nb8 Qg1 Bd2 Qgd4 Kc7 Qa4 Kb7 Qd1 Be3 Qc2 Ng6 Qee5 Rc7 Qd1 Rd7 Qfe4 Kc8 Re7 Rc7 Q5f5+ Rd7 Ree6 Rf7 Re7+ Kd8 Rc7 Ne7 Rd7+ Kc8 Rc7+
k5Bb/1R1QK2Q/qn3p2/rp4P1/N2BNp1b/1R3R2/BQ1Q2nr/1rq2b2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Kg4 c5 Kf5 h5 g4 b3 d4 b2 a4 h4 e4 f6 g6 c4 a5 h3 e5 Kc7+ e6 Kb7 d6 c3 d5 h2 d7 c2 d6 Rh3 a6+ Ka7 g7 Rg3 g5 Rg2 e7 Rd2 Ke6 Qc7 e8Q Qd8 Qe7 Bb7 Nh3 Bf3 Bc4 Qa5 d8Q+ Nd7 Ra3 Rd5 Qe2 Qd2 Rf1 h1Q Ba2 Qa5 Nf2 Rd2 Rb3 Nh6 g8B Bg7 Nc3 b1R Bb2 c1B Na4 Nf5 Ne4 Bg2 Rff3 Bh8 Qh7 Nh4 Ke7 Bf1 Bd4+ Nb6 d7 Ng2 Qc8 Rdb2 d8Q Bd2 Qd5 Be1 Qcd7+ Kb8 Qf2 Rc2 Qd2 Bh4 Qe5+ Rc7 a7+ Kb7 Qc5 Qa6 Qa3 Qg1 Qab2 Qe3 Qb4 Qc1 Q2d2 Rd8 Qbc3 Ka8 Qcb2 Rc2 Qe8 Kb7 a8R Rdc8 Rb8+ Ka7 Rb7+ Ka8 Qd7 R8c4 Nac5 Ra4 Rbc3 Ra5 Rb3 Rc3 Na4 Rd3 Rf2 Rh3 Rff3 Rh2
2R1nRq1/1n1q2RR/1q1kP2K/B2r3N/b1Q1p1p1/3Qr1N1/B3pb2/4r1QN w - - 0 1 illegal: No proof kernel
5K2/n5Qq/NB2pB2/1k1Br2r/3Q1b1R/1qR2r1p/2NN1Ppn/1R2Bq1b w - - 0 1 illegal: No proof kernel
1B6/b1q1r3/3pB2R/K1n2b2/2Qbk1rR/P2p1N1p/Q2nB2r/BNq1Q1N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 c4 b5 f4 h5 g4 e5 a3 e4 c5 b3 c6 b4 f6 Kg6 c7 h4 f7 d3 f5+ Kg7 g6 Kf6 g5+ Ke5 f6 b2 g7 b3 Kc3 e3 g6 e2 Qe1 Bc5 f8N Bd4+ Kb4 Ke4 f7 Na6+ Ka5 Nf6 g8B Ra7 g7 d6 Nh7 Bf5 f8B Rb7 Be6 Nc5 g8Q Qb8 c8Q Re7 Qf7 Rg8 Qa6 Rg4 Be3 Qc8 Bg7 Qb8 Qb4 e1B Qc4 Bf2 Be2 Qb7 Qe1 Qc7+ Kb4 Nfd7 Ra2 Ne5 Bh8 Nf3 Qg8 Reg7 Qf7 Nd2 Ng5+ Ke5 N5f3+ Ke4 Qg8 Re7 Qcc1 Na4 Bf7 Ba7 Bf1 Bb8 Ba7+ Be3 Rh3 Nc4 Nbd2+ Kf4 Bc3 b1Q Ba1 b2 Qc2 Nc5 Rh2 Nb6 Ka5 Qc1 Bb3 Bd4 Qge6 Bf2 Q6e2 Bd4 Be6 Ne4 Qc4 Na4+ Bb6 Nac5 Qg2 Qb7 Bc7 Ba7 Qge2 Rh7 Rh1 b1R Bb8 Rb2 Nb1 Re7 Qec2 Qc6 Q2b3 Rf2 Rd2 Qc8 Qa2 Rfg2 Rf2 Nd2 Be2 Ke4 Rh3 R2g3 Rfh2 Rg2 Rg3 Qc6 Rhh3 Rh2 Rg2 Rgg7 Rg6 Qc8 Rh6 Qd7 Rg3 h3 Rg5 Rg6 Rgh5 Rg4 Rh4 Qc7+
2kq1RQ1/K3q2Q/n1P1b1p1/q1r1NN2/Bp1nQ2R/4pQ1r/1B1n1b1B/4R3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 b5 Kd3 d5 h4 Kd7 f4 e5 c4 b3 a4 b2 c5 g6 f6 b4 h6 Ra7 h5 Bg7 h7 Bb7 a5 Bf8 f7 Ra8 h6 Qe7 f5 Na6 f6 Kc8 Rh4 Qc7 Nf3 Kb8 Bf4 Qd7 Na3 b1N Nb5 Bg7 f8R+ Qe8 f7 Ne7 Bh2 Nf5 Nd6 Nd2 c6 Qd8 Qe1 Bc8 Qe4 Qe7 Re1 Kc7 Be2 Be6 Bd1 Rb8 Ba4 Rb5 Rh3 Rc5 Rh4 Ng3 Nf5 Ne2 Re8 Bf6 f8Q Bg5 Qf7 Be3 Rf8 Bf2 Qf6 Rg8 h8Q Rg7 Rf7 Rh7 Qhg7 Rh8 h7 Kc8 Qh6 Rg8 h8B Rg7 Rg4 Rh7 Qhg7 Rh6 Qh7 Rh3 Rh4 Nc4 Kc2 d3+ Kb3 d4 Bg7 d2 Rf8+ Qd8 Bh8 d3 Qff7 Nc7 a6 d1Q+ Ka2 d2 a7 Qc1 Kb3 Na6 Bf6 Qa1 a8Q+ Nb8 Qfg8 Qe8 Qaa7 Na6 Qaf7 d1Q+ Qc2 e4 Bb2 e3 Ne5 Qdd8 Qe4 Qee7 Qf6 Rd5 Qff7 Na3 Qf6 Nb1 Kc4 Rd1+ Kb5 Rc1 Qff7 Nd2 Qf6 Nc7+ Kb6 Nd4 Ka7 Rc5 Ng3 Qa2 Qff3 Qa1 Nf5 Na6+ Nd7 Qf6 Ne5 Qa3 Bd1 Qa5 Ba4 Qe7+
nQB1B2Q/3N1R1R/2p3k1/qn4b1/B1Q1qrq1/1K1b2Qp/3r1NpP/n5R1 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 axb4 g4 f5 gxf5 e5 Bb2 Be7 cxd5 Bf6 d6 Be7 d5 Bf8 Bd4 exd4 Kd2 Kf7 Kc2 b5 a4 h5 e4 g5 f4 h4 d7 g4 a5 h3 a6 d3+ Kb3 g3 a7 g2 d6 c6 f6 d2 e5 Be7 e6+ Kg6 f5+ Kg5 f7 Bf6 f8Q Bb7 e7 Ba6 e8B Nh6 Nc3 Qa5 d8Q Nd7 Qe1 Nf7 Nd1 Nb6 d7 Nd6 Qf7 Rh4 Nf2 Rf4 Qb8 d1N d8R Ne3 Qc4 Nc2 Nf3+ Kh6 Rb1 Bg5 f6 Kh7 f7 Kg6 Qc7 Rb8 Rd7 Rd8 Qb8 Na8 Rc7 Rd7 Rg1 Rd8 Be2 Rd7 Bd1 Rd8 Kb2 b3 Rc1 b4 f8Q+ Nf7 Qh8 Rd2 Qc5 Bd3 Ne5+ Kf5 Rb7 Nd6 Qc4 Nb5 Rg7 Kf6 Nd7+ Kf5 Rf7+ Kg6 Ra1 Qa6 Kb1 b2 Ra3 Qb6 Ka2 Qa5 Kb3 b1Q+ Qb2 Qc1 Qh8 Qa1 Qe3 Qg7 Qg3 Nac7 a8B Qg8 Bb7 Na8 Kb2 b3 Bc8 Qg7+ Kb1 b2 Ka2 Qd4 Kb3 Qe4 Ra2 b1Q+ Rb2 Nca3 Bc2 Qd1 Rb1 Qg4 Rbe1 Qef5 Ree7 Qe4 Bd1 Nc2 Rh7+ Kf5 Ref7+ Kg6 Kb2 Nca3+ Bc2 Rd1 Ba4 Nc2 Ka2 Rd2 Kb3 Na1+
2N2bkr/KQ1Nn3/2p3b1/prq5/RQ2pn1P/4N1qn/1BBQ4/1RB2Bq1 w - - 0 1 illegal: No proof kernel
N1Q2Nk1/b6b/1p1B2KQ/qpRNqrPr/1pR1q2R/1B1r4/2n5/2QN3n w - - 0 1 illegal: No possible last move
2N2n1N/1qRrB1QQ/Pp1n1rbp/3q1Q1q/2Bp4/r5K1/3k1N2/R1bB2N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 a4 d5 g4 e5 f4 b3 Kf2 b2 a5 d3 c5 d4 c6 b6 a6 h6 c7 d2 g6+ Kf6 g7 e4 g5+ Ke7 g6 Kf6 Qf3 d1Q Bc4 e3+ Kg3 e2 Nd2 b1R Ba3 Ne7 g8B Ra7 g7 e1Q+ Qf2 Be6 c8N Rd7 Bb3 Qh5 Bd1 Ba2 Bc4 Qe4 g8Q Qb7 Qh7 Rb3+ Qf3 Bb1 Rh2 Rd3 Re2 Nd5 Re7 Nc7 Rg7 Ne8 Re7 Rd5 Rc7 Nd6 Bb4 Nd7 Bc5 Bg7 Ba3 Rf8 Ne4+ Kf7 f6 Ke6 f5+ Ke5 f7 Bf6 Nf2 Bg5 f6 Bc1 Bb4 Ra3 Bc5 Bg6 Qd3 Re8 f8N Re6 f7 Rf6 Qg7 Ne8 Be7 Nd6 Nh7 Qg8 f8Q Qe6 Qfg8 Nf8 Ng5 Qf5 Q8h7 Qe6 Kg2 Kf4 Qf5+ Ke3 Nf7 Kd2 Nh8 Nf7 Nd3 Rd7+ Kf2 Nd6 Kg3 Ra4 Nf2 Qed5 Qe4 Ra2 Qf5 Ra3+
2K1nB2/r1R2BR1/pb2qNbq/5k1b/1NP1p1nR/1p1QrN2/RQ1B4/5n2 w - - 0 1 illegal: No proof kernel
K1q1R1b1/5q1Q/pR3RNN/rpq3N1/1n2B1pB/RQb5/1B2kP2/2b2rn1 w - - 0 1 illegal: No proof kernel
K4BNQ/4r2P/b1q2Rn1/1Bqk2q1/pQ3rp1/R3R1p1/3bNn1n/N3Q2R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 e5+ Kd7 h5 a5 d6 Ke6 d7 c4 b6 g3+ Kf3 c3 b7 c2 b5 a4 d5+ Kf7 b6 Rh7 e6+ Kf6 h6 Ke5 e7 Bg7 e8N Ne7 d6 Qc7 d8R Bf6 d7 Rh8 h7 Na6 b8Q Rf8 b7 Nc5 Ba3 c1Q Qe1+ Kd5 Bb5 Ra7 Ne2 Bc3 Nd2 Ne4 Nb3 Qc5 Bb4 Qd2 Ra3 Ng6 Na1 Nf2 Qa8 Qc6 b8Q Ba6 Rc8 Qd4 d8R+ Rd7 Rc7 Qc5 Rdc8 Rdf7 Re7 Bd2 Ree3 Rb7 Rc7 Ra7 Rf7 Re7 Rf6 Rff7 Nd4 g4+ Ke2 Ne4 Kd3 f3 Ne2 f2 Qb6 f1N Qa5 Qa7 Bc5 f4 Qb4 f3 Qc8 Ke5 Kc4 f2 Rd6 Nh2 Nf6 Rd7 Qh8 Rf8 Ng8+ Rg7 Rf3 Qe7 Rfc3 Qg5 Rcb3 Rf4 Rf6 Qb6 Bf8 Re7 Qb1 f1Q Re3 Qf3 Qe1 Bb7 Be8 Qd6 Kb5 Ba6+ Ka5 Qd5+ Kb6 Qc4 Bd7 Qb5+ Ka7 Qc5+ Ka8 Qg2 Rec3 Nf2+ Bc6 Qgd5 Rcb3 Qdd6 Bb5 Kd5 Re3 Qdc6+
2B1NRN1/1qQbK2p/RrqQ4/1Qn1Rppk/qB2Q2b/Nn1P2r1/2b5/8 w - - 0 1 illegal: No proof kernel
2r2Bqn/2q3p1/N2R2B1/1Qb3Bn/1RN3Pp/nRRNp2Q/k1K5/2b1q2r w - - 0 1 illegal: No proof kernel
Q2K4/2Q1R1pB/2NB2Rq/n3p1Q1/r1p3P1/qNbQ1r1n/3b3k/qr3RN1 w - - 0 1 illegal: No proof kernel
1r1Q1q2/k3qQp1/bn1KBR2/P1N1N3/Q3Rp1n/4B1pq/rR1Q1bN1/5b2 w - - 0 1 illegal: No possible last move, all moves rejected
1KR1R2Q/2Rbp3/qn3bP1/B1pQp1B1/1n1n1N1r/q3b3/1k1r4/NB2N2B w - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 dxc4 h4 f6 e5 fxe5 hxg5 Bb7 Qc2 Ba6 Qd1 Bc8 Ke2 Kf7 Kf3 Ke6 Ke4 a5 f4 c5 d4 h5 g4 c3 b4 h4 g6 c2 g5 a4 f5+ Kd6 d5 h3 b6 h2 f6 a3 f7 a2 b7 Bh3 g7 Nh6 g8B Rh7 b5 Nc6 b8Q+ Qc7 b6 Bg4 g6 Ra3 b7 Be6 Bg5 c1N Bd3 Rh8 Nd2 Na5 Bb1 Bg4 Nb3 Bc8 Nf3 Nf5 Ne1 Bg7 f8N Nd4 Ne6 Rh4+ Nf4 Bd7 Qe8 Qc6 b8R Qb6 Rc8 Qa6 Be6 Bf6 Qh8 Nc4 Bg4 Bg7 Bf3 Bf6 Rf1 Ra4 Bh1 Nd3 Re8 Nb6 Qd2 Kc7 d6+ Kc6 Rf2 Kb5 Rf3 Be6 d7 Kc4 d8B Bd7 Qd1 Kc3 Bc7 Na8 Kd5 Kb2 Ba5 Rc4 Rh3 Rc2 Qf3 Rd2 Qg2 Rg4 Rh7 Rh4 Rg7 Qb5 Rgg8 Qa4 Rc8 Qa3 Rge8 Nb4+ Kc4 Ndc6 Kb5 Nb6 Qf3 Rh7 Qd5 Rh4 Bf3 h1Q Bfe4 Qg1 Bh1 Qg4 Rc7 Qe6 Rec8 Nd3 Ka6 Nd4 Kb7 Nb4 Kb8 Qc6 Bd3 Qb5 Rd1 a1B Bb1 Qa6 Re8 Kc3 Rec8 Bb2 Na1 Bc1 Re8 Rf2 Rd3+ Kb2 Rf3 Be3 Rh3 Rg4 Rh7 Rh4 Rg7 Ba4 Rgg8 Rd2 Rec8 Bb5 Rge8 Bd7
2NNN1rn/2RQp3/1q4pb/3R2pn/4rQ2/K1BB1QqN/q3P2k/b4Br1 w - - 0 1 illegal: No extended proof kernel
8/BQ1Bpq2/bpK1B1nN/Q2nPb2/3B1RRp/1QN4r/q4b1k/1r3q1N w - - 0 1 legal: proof: f4 d5 b4 g5 fxg5 a5 h4 axb4 c4 Qd6 h5 Qh2 h6 Bxh6 cxd5 Bf8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 e4 f5 g4 b3 a4 c6 a5 h4 a6 f4 a7 b2 g6 f3 g7 f2 e5+ Kd7 Kc5 Qg2 d4 Qh2 d6 Ke6 d7 Rh7 d8B Rh6 g5 Kf5 d5 Rh8 g6 Nf6 g8B Bh6 d6 Nd5 Nc3 b1B Bb2 Kf4 d7 Kg3 g7 Bf5 Bh3 f1Q Ra4 Be3+ Rd4 Qf3 Bb6 Bf2 d8Q Qf4 Be6 Nd7+ Kc4 c5 Kb5 c4 g8N Rb8 a8Q Nf8 Qb3 Ng6 Nh6 Rg8 Ba7 Qf3 Qa5 Rf8 Nd1 c3 Rf4 c2 Bbd4 c1Q Nc3 Qf1+ Kc5 Rg8 Bg4 Rg7 Nh3 Qhg2 Rg1 Kh2 Ng5 Rg8 Nge4 Rd8 Ng3 Rd7 Nce2 Rc7+ Kb5 Rc3 Nh1 Re3 Bh3 Qh5 Bg4 Rh3 Kc5 b6+ Kc6 Ba6 Nc3 Rg8 Nf7 Qh7 Nh6 Qf7 Qc8 Qb1 Qb7 Qa2 Be2 Qf1 Bb5 Rd8 Rgg4 Nf6 Be3 Rd1 Bd4 Rb1 Bd7 Qd3 Bc4 Qf1 Bce6 Nd5
2q1RQKr/rn1P4/1p2R3/3k3q/2b1p2B/N2n1QBb/1RNn3p/b1B2Q1B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 h5 g4 c5 a4 e5 d4 b3 f4 h3 a5 h4 f6 b2 f5 b6 a6 h2 f7 h3 a7 Qf6 g5 Bb7 g6 Nd7 g7 Qg6 f6 Qg2 Na3 b1N Ra2 Qb2 Ne2 Rh6 Bg2 Nc3 Re1 Ne4 Bh1 Ne7 g8R Bg7 f8Q Bc8 f7 Rh8 Qd3 Qd2 Rb2 Qg5 Qf3 Qh5 Qf1 Rb8 a8Q Rb7 Nf4 Rc7 Nd3 Ra7 Nb4 Bf6 Nbc2 Nd2+ Kd3 c4+ Ke3 Nf3 Ke4 c3 Re2 Ba6 Rg6 Bc4 Rh6 Kc7 Re3 Bg7 Re6 Nc6 Re1 Na5 Re3 Qh6 Kf5 Nb7 d6+ Kc6 d5+ Kc5 Re8 Qh5+ Ke6 Nd2 Ke7 Nb8 d7 Na6 d8B Nb4 d6 Nd3 Re4 Kc6 d7 Kd5 Bf3 h1B Bc7 Bh6 Kf6 Bf4 Kg7 h2 Bd8 Be3 Bh4 Bg2 Bg3 Bh3 Bh1 Bd4 Re6 Rh7+ Kg8 Rh6 Qb4 Rh7 f8B Rh6 Be7 Rh7 Ne1 c2 Beh4 Bc3 Qbf8 Rh6 Rb1 Ba1 Rb2 Rh7 Q8f3 Rh6 Rf4+ e4 Rf8 Rh7 Rfe8 Nb1 Bcf4 c1Q Nec2 Nd2 Be3 Qe1 Qb8 Qf2 Bh6 Qc5 Qbf4 Qc8 Qf8 Nb3 Bc1 Nd2 Qe7 Rh6 Qef8 Rh8+
RQKNB2q/2qp1qNn/N4NQ1/2RrbPQ1/8/1n1pp1B1/br3R2/1k5n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 g4 h5 c4 h3 f4 d3 b6 a4 b5 h2 b7 a3 f6 h4 g5 a2 g6 h3 f5 Rh5 b6 Rh4 g7 Rh6 f7 Re6 Nd2+ Ke3 Ne2 Re4 Nf4 Ra6 Nh5 Qe8 Be2 Nf6 g8Q Bg7 f8N e5 Kd6 Ng4 Kc7 Qf7 c5 Nf6 c6 Rb4 Ne6 e4 Rf1 h1Q Nd8 h2 Rf2 Ra5 Qg1 Rb2 Qg6 Nh7 Bf3 Bc3 Ng7 Rd5 Bh5 Kd4 Qg5 e3 Ne4 Qd1 Nf6 h1N Bd2 Qc1 Be1 Kc4 Qe8 Kb3 Qe6 Be5+ Qd6 Qe6 Be8 Qc4 Rc1 a1Q Rc3+ Ka2 Ra3+ Kb1 Ra8 Bc3 Qdg3 Qf7 Qg6 Qa7 Q3g5 Qb4 Rf1 Qbf8 Bg3+ Be1 Rf2 Qh8 Nde6 Bd2 Kd8 Na6 b8N Be1 c7 Bb7 c8R Nc5 Na6 Nb3 Rc5 Bc3 Kc7 Bc6+ b7 Be5+ Kc8 Bb5 b8Q Bc4 Rc6 Nd4 Rc5 Ba2 Nd8 Nb3 Q6h6 Qb6 Qhg6 Qc7+
2q1n2Q/k2pBbp1/n1R1n3/5R1K/p1Rr3B/b1q4r/P1Nq1Q2/Q1BQ1N2 w - - 0 1 legal: proof: d4 c5 g4 f5 gxf5 h5 b4 e5 bxc5 exd4 Bh3 Na6 Bg4 hxg4 Bd2 Nb8 Bh6 Nc6 Bc1 Nb8 e4 a5 Ke2 b5 c4 g3 Kf3 g2 Kg4 b4 h4 d3 f4 a4 h5 b3 e5 b2 c6 d2 c7 Ra6 f6 Rc6 e6 Qe7 h6 Rh7 f5 Bb7 c8Q+ Qd8 c5 Rd6 e7 Rc6 Kh5 Ra6 c6 Ba8 c7 Be4 Na3 b1Q Nc2 Qb2 Nf3 g1N Nh2 Qb5 Nf1 Qc5 Rh4 Bd5 Rc4 Ne2 Qb7 Rh8 c8R Nd4 h7 Rd6 Qb1 Ne6 Rc6 Qc8 Qb6 Qa3 Qf2 Na6 Rb1 Qc3 Rb5 Bh1 Re5 Rd4 Ra5 Bd5 Rac5 Nh6 Rb5 Nf7 Ra5 Rg8 h8Q Nd6 Qde1 d1Q+ Kg6 Qb8 Qh5 Qdd3 Bg5 Rg4 Qa1 Rd4 Qhd1 Rh8 Bc1 Nec7 Rb5 Rh3 Ra5 Qc8 Kg5 Kf7 e8Q+ Kg8 Qeh5 Nde8 Qh8+ Kf7 Rb5 Ba3 Rbc5 Rf3 Kh5 Qdd2 Ra5 Ne6 Rac5 Nf8 Rb5 Nec7 Rbc5 Ke8 f7+ Kd8 f6 Ne8 Ra5 Be6 Rf5 Rh3+ Qh4 Nh7 f8B Bg8 f7+ Ng5 Bd6 Qdd3 f8B Qdd2 Rf6 Ne6 Bg3 Qc7 Be7+ Kc8 Rf2 Kb8 Rf5 Ka7 Be1 Qc8 Bf2 Rg3 Qf4 Re3 Bfh4 Rh3 Qf2 Bf7+
NR2BqRq/3p2pK/4P1n1/1nrp1BN1/1Q6/3r1bk1/1qQ1Q3/N1nNb1B1 w - - 0 1 illegal: No possible last move
4k3/1QPN1pq1/6n1/2QqB3/BK1NB2B/prnQRnb1/R1p2rb1/1q1R4 w - - 0 1 illegal: No possible last move, all moves rejected
N5Kb/1qp4p/1qk5/5QBB/4nnR1/2rpQ1N1/2RRQPq1/2Q1nbrN w - - 0 1 illegal: No proof kernel
1B2Q3/1pb3bk/2RNqBNB/2K3pN/1n1pq1PQ/1B1q4/1r2nQ1r/4Rb2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 h5 g5 Qd3 Qb6 Qd1 Qg6 hxg6 Bg7 Nh3 Bh6 Ng1 Bf8 Ke2 h5 Kd3 d5 g4 e5 f4 b3 a4 h4 c4 b2 f6 h3 f5 h2 c5 Rh7 c6 Rh6 f7+ Ke7 g7 Kf6 a5 Be6 a6 Rh7 a7 Ne7 g8Q Rg7 c7 Nbc6 c8N Bd7 Qe1 Rg6 Nh3 Rh6 Nd6 Bg7 f8B Ng6 Nd2 Rh4 Rg1 h1Q Nf4 Rh2 Nf3 Re8 Rg2 b1Q+ Rc2 Qb6 a8Q Re7 Qf2 e4+ Ke2 e3 Kd3 e2 Qe8 e1B Bb2 Re4 Nh4 Re2 Qh8 Ba5 Re1 Qa6+ Rc4 Bc7 Ba1 Rc2 Be2 Qg2 Bd1 Rb2 Bb3 Qh1 Nf3 Qa2 Qhh4 Be6 Rc2 Qg2 Ne5 Qe4+ Kd2 d3 Kc3 d2 Rcc1 Bh8 Bh6 d1Q Rc2 Bg7 Rc1 Nge7 Neg6 Nd4 Kb4 Qdd3 Rc6 Ne2+ Kc5 Bd7 Rb6 Bb5 Rc6 Qab1 Nh8 Qe6 Nh5+ Ke5 f6 Qe4 f7 Qbd3 Rb6 Nc6 f8B Nb4 Rc6 Bc4 Nf4 Kf6 Nhg6 Bh8 Nf5 Bg7 Bd6 Bd8 Bb8 Bc7 Qc8 Kf7 Nh5 Ba6 Qd7+ Kg8 Nd6 Kh7 Qc8 Rd2 Bd4 Rb2 Bf6 d4 Qe8 Ng3 Qe7 Qdf3 Nhf4 Bf1 Nh5 Ne2 Qe8 Qfd3
1K1n3r/p1B1q1n1/R7/2PRR1Bp/1b1QrrQ1/4b2B/pNb1QN2/k3qR2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 cxd4 Ke2 Kf7 Kf3 d5 Kf4 h5 Ke5 e6 f4 d3 g4 d2 c4 d4 b4 d3 b5 a3 b6 Rh6 g6+ Ke7 b7 Qe8 c5 Qf7 f6+ Kd7 g5 Kc6 f5 Kb5 g7 Kb4 g6 Na6 b8B Ne7 Kd6 e5 g8Q e4 g7 e3 Bc7 e2 Nc3 e1B Nh3 Nb8 Qh8 Nbc6 g8Q Nd8 Qe2 Kb3 Qgg4 d1Q Nf2 d2 Bh3 a2 Rf1 Bb7 Na4 Be4 Nb2 Bc2 Kd7 Qh7 f7 Re6 f6 Bh6 f8R Nf5+ f7 Be3 Re8 Ng7 f8R Re4 Rf6 Rf4 Ra6 Qe4 Bb8 Qe7+ Kc8 Kc3 Rf8 Kb3 Rf5 Kc3 Re5 Kb3 Qef3 Qe2 Qe4 d1R Qd4 Bb4 Qe8 Qe1 Qb5 Re4 Qbe2 Rd3 Bd2 Rc3 Rd1 Rc4 Bc1 Bh6 Bg5 Rf4 Rd2 Re4 Bf6 Be3 Bg5 Rf4 Qdd7 Rce4 Rdd5 Nde6 Kb7 Kc3 Bc7 Rh8 Qa4 Nd8+ Kb8 Bd3 Qad1 Bc2 Qd4+ Kb3 Na4 Ka3 Nc3+ Kb2 Na4+ Kb1 Nb2 Ka1
2Q4N/p2q1K1k/1bR4N/np1Rp2Q/1B1P4/nBB2R1q/6Qr/rr2Qb1b w - - 0 1 illegal: No proof kernel
2bk1Bq1/pRbB4/2nNR1R1/p3QqrN/1nK4q/p3rP1b/2Q2N1Q/1N6 w - - 0 1 illegal: Other
r1k5/p2R4/NRbrNnp1/3qB1qP/3bQ2p/2B1Q2K/RQ3qB1/nb1R4 w - - 0 1 illegal: No proof kernel
b1K2qnb/p1B2p2/r1Q1p1QN/2n3N1/1k6/rN1QR3/n1B1P2q/QB1qR3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kf2 Kd7 d4 Kd6 h4 c5 b4 c4 h5 e6 h6 g3+ Kf3 c3 Ke4 f3 h7 g2 b6 f2 b5 c2 g6 Na6 b7 Qh4+ Bf4+ Ke7 Ke5 c1N b8N Qh2 b6 Nc5 b7 Ne4 d6+ Ke8 g7 Ngf6 d7+ Ke7 d5 Nh5 Nf3 g1Q Bh3 f1Q Ng5 Qf3 Ra3 Nc5 Bf5 Na6 Re3 Rg8 h8Q Qd1 Nd2 Nb4 Bc2 Nb3 Re1 Na5 Nb3 Kd8 Nc6+ Kc7 d6+ Kb6 d8Q+ Kb5 b8Q+ Bb7 d7 Qh4 Qdc7 Qh2 d8Q Nf6 Ne7 Na2 Qd3+ Kb4 Kd6 Qg4 Qbc8 Rb8 Qc6 Ba8 Kc7 Nb7 Nf5 Nc5 Nh6 Rb6 Qhh7 Qf5 Qg6 Ra6 Bb1 Rh8 g8B Bg7 Bh7 Ng8 Qcd8 Qf6 Kc8 Qe7 Bc7 Qed6 Qdf6 Qe7 Qa1 Qf8+ Qd8 Be5 Qh5 Bc3 Bhc2 Rh7 Qg6 Bh8 Nf5 Rh4 Nh6 Rc4 Nh7 Rc3 Ng5 Qe7 Qdd3 Qed6 Na5 Ra3 Nb3 Qf8+
3k2n1/Br5R/1R3p2/N2nb1R1/3P4/1QNNr2r/KBpqpQ1r/1B1R1br1 w - - 0 1 illegal: No proof kernel
r2r4/rr4nk/1RNp3B/2R2N2/2K3p1/P1QpQ1BQ/R2n1B1b/4qBrb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 e5 f4 g5 c4 Kg7 h4 b5 c5 b3 h6+ Kh7 h5 b4 a3 b2 f6 b3 c6 g4 c7 e4+ Kc4 d3 f5 e3 f7 e2 f6 e1R Nf3 Re4+ Nd4 Re5 Nc3 b1R Qf3 b2 Nd5 Na6 Nf5 Re8 Qe3 Re7 Ra2 Re6 Nb4 Re7 Nc6 Bb7 c8R Bg7 f8B Nc5 f7 Nb3 Rg1 Re5 Bd6 Qa5 f8B Re7 Bg3 d6 Bd2 Rf7 Bde1 Nf6 Bef2 Ne8 Rb8 Qe1 Rg2 Bc8 Rb6 Rfa7 Rg1 Bb7 Rh1 Be5 Rh4 Kg8 h7+ Kf7 h6 Kg6 Rh2 Ng7 Rh5 Rg8 h8Q Nd2+ Kd5 Ra1 h7 Bf4 Kd4 b1R Kd5 Ne6 Qb2 Ng7 h8Q Be5 Qc3 Rb4 Be7 Rgd8 Bg5 Rb2 Bh6 Bf4 Qhe8+ Kh7 Q8e4 Be5 Qg2 Rab1 Qh3 Rc1 Bh4 Bh2 Bhg3 Rb5+ Kd4 Ra1 Na5 Bh1 Nc6 Rb7 Rg5 Rba5 Rh5 R5a7 Rg5 Ne4 Kc4 Nd2+ Kb5 Bd5 Be2 Nf1 Nfd4 Bh1 Rc5 Qd2 Nf5 Re1 Kc4 Qd1 Kb4 Nd2 Kb5 Rg1 Bf1 Qe1 Kb4 Nb1 Kc4 Nd2+
Q2rQ1rq/2pr4/p2r1k2/1B4N1/3nPp2/1N1Bb1Q1/NnKNr2B/1R3b1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Rh3 Ke7 d4 f5 Kd2 h5 b4 a6 e4 f3 g4 f2 g5 Rh6 b6 Re6 b5 Kf7 b7 Nf6 g6+ Ke7 d6+ Kd7 g7 Re5 g8B Be7 b6 Nc6 b8Q Rd5 b7 Ng4 Nc3 Ne3 Qe1 Bg5 Rb1 Nd1+ Kc2 Nb2 Bd3 f1R Nf3 Rg1 Na2 Qf8 Rh2 h3 Bf4 h4 Nd2 Qg7 Qa7 Qh8 b8Q Rg4 Be5 Be3 Qab7 Kd8 d7 Ke7 d8N Bd7 Be6 Rg8 Nf7 Bc8 Bd6+ Kf6 Ng5 Bd7 Bg3 f4 Qe8 Rb8 Bf7 Bg4 Qa7 Be2 Qa8 Bf1 Be6 Na4 Bd7 Nb2 Rg2 h2 Rg1 h3 Qf2 Rd6 d5 Re6 d6 Nd4+ Kc3 h1R B7b5 Rh2 d7 Bg2 d8N Bf1 Nb7 Rd6 Nc5 Rbd8 Qf3 Re2 Ncb3 h2 Qg4 Ne6 Kc2 Rg7 Nf3 h1R Bh2 Rgd7 Qgg8 Bg2 Rgd1 Rg1 Re1 Bh3 Rec1 Rg3 Rh1 Bf1 Qg4 Rg1 Qh4+ Rg5 Qg3 Rg8 Ng5 Nd4+
1R2r3/2nnNb1Q/kB3B1b/1n1NR3/3p4/1Rp3r1/pbq2PQQ/R3K1nB w - - 0 1 illegal: No proof kernel
6B1/r4b2/R3N3/bP3k1p/p1rr2NR/QbB2qBn/bN1B2Kp/1n2R1Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 Ke6 b6 h3 e5 f3 d7 c4 b7 f4 b5 c3 g5 c2 g6 Qf6 d8B Na6 b8B Nb4 d5+ Kf5 g7 Ne7 g8Q Ra7 e6 Na2 d6 Nc3 d7 Ned5 Qg3 Bb4 Nd2 Nb1 e7 h2 e8R Rg8 Nh3 Rg4 Nc4 Qf7 Bd2 c1R Nb2 Rc4 Rg1 a4 Re4 Bc3 Bf6 Ba5 d8N Be6 Bfc3 Qf8 Bd6 Bf7 Ne6 Qa8 Be2 Qc6 Kf1 f2 Kg2 Rd4 Bc4 f1B+ Kf2 Bd3 Kg2 Bc2 Nf2 Bb3 Bb8 Rh4 Ng4 Ba2 Qb3 Qb7 Qa3 f3+ Kf1 f2 Kg2 Bb3 Qe3 Qc6 Bg3 Qa8 Rc1 Ba2 Qe1 Qb7 Qg1 f1B+ Kh1 Bd3 Kg2 Bc2 Rd1 Bcb3 Rde1 Ne7 Re3 Ng6 Rd3 Rd7 Rd6 Rc7 Bd5 Rc4 Ra6 Nf4+ Kf1 Kg6 Ne3 Nh3 Kg2 Be8 Nd8+ Qc6 Bg8 Bf7 Ne6 Qd5 Qc5 Na3 Re1 Nb1 Qa3 Rf4 Ned1 Kf5 Nf2 Rf3 Rh4 Rff4+ Ne4 Qd3 Nf6 Rfd4 Ng4 Qf3+
1Q1r2Qb/n1KQ2n1/R2B1pq1/4NR2/2bNk1p1/1N3N1p/b1nB2bP/rB6 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 Bb7 Ra5 Ba6 Ra1 Bc8 f5 Qb6 f6 exf6 Qd2 Qc7 Qd1 Qd8 g4 Be7 g5 Bc5 g6 Bf8 gxf7+ Ke7 Kd2 Ke6 Kd3 Kf5 Kc4 g5 Kd5 a5 c4 h5 b4 g4 e4+ Kg6 b6 d6 e5 Kf5 b5 a4 e6 d3 b7 a3 e7 h4 e8N a2 b6 h3 c5 d2 c6 Bg7 f8N Nh6 c7 Nc6 b8Q Na7 Nd7 Ba6 c8Q Bd3 Qa4 d1B Nc7 Qe8 b7 Qg6 Nd2 Rd8 Nb3 Bh8 Ne6 Ba6 Bd2 Bf3+ Kd4 d5 Kc5 d4 Kd6 d3 Ned4+ Ke4 Kc7 Bb5 Ne5 Bc4 Qad7 Bg2 Ngf3 Nf5 Be2 Ng7 Rhf1 Qh7 Bd1 Qf5 Bc2 Qg6 Rac1 a1N Bb1 Nc2 Rf2 Na3 Rc3 Nc2 Rf1 Bd5 Rc6 Bf7 Ra6 Bc4 Bf4 d2 Rf2 d1B Bd2 Rf8 Qce8 Bde2 Qef7 Be6 Qg8 Re8 Ng1 B6c4 Rf5 Rd8 Ngf3 Bf7 Qbc8 Bec4 b8B Bcd5 Kb6 Bc4 Bd6 Rb8+ Kc7 Rb5 Bg5 Ra5 Bd2 Ra1 Qb8 Bfd5 Nc1 Ba2 Ncb3 Bc4
K2RN1Q1/r2BrrB1/nN3p1b/4pb2/2Qn2N1/3bP2q/2bpkBQ1/2R3Q1 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 Qc7 d3 Qxh2 d4 cxd4 Kf2 h5 Kf3 d5 c4 Kd7 b4 Kd6 g4 Ke5 c5 a5 e3 a4 b6 a3 b5 d3 b7 h4 b6 h3 c6 d4 c7 e6 g6 a2 g5 d2 g7 d3 g6 Ra7 Na3 Nh6 g8N Bc5 g7 Kf5 Bb2 Bd4 Rc1 a1R Nf6 Kg5 Ke4 Qe2 g8Q+ Kh4 Ne8 h2 Qg2 Rb1 Nh3 Rh7 Nc4 Nf5 Nf2 Na6 b8Q Bg7 b7 Nd4 Ng4 Bh6 Nb6 Qf3+ Ke5 Kg5 Kd6 Qh3 Qa8 Ra1 b8B Ra4 Qe1 d1B Ba1 d2 Bb5 Rb4 Bd7 Bc2 Qeg1 Rb5 Qac6 Rf5 Qc4 Rf2 Bb5 Bd7 c8Q Rf3 Bc6 Kf5 Ba4 Ke4 Qd8 Bc8 Bd7 Bd3 Qg5 Bc2 Qg8 Rg7 Qc5 Kd3 Bb2 Rf2 Qcc6 Ke2 Qc4+ Bd3 Bc7 Rh7 Bd8 Rg7 Bh4 Rh7 Qgd5 Rf4 Bf2 Rg7 Qdg2 f6 Ba3 Rf7 Bc5 e5 Kd5 Rf5 Bf8 Rh5 Bg7 Re7 Bb5 Bf5 Bd7 Bg5 Kd6 Rh7 Kd5 Bh6 Kd6 Ne6 Kc6 Rf7 Bc8 Rae7 Bd7 Nd4+ Kb7 Nb5 Qb3 Nd4 Rc8 Bc2 Ka8 Bcd3 Rd8 Bc2 Qgb1 Bcd3 Rc1 h1B Rc3 Bc2 Qg1 Bcd3 Rc1 Bc2 Qb7 Bhe4 Qc4+ Bed3 Bc6 Rc7 Bd7 Re7 Qbg2 Rb7 Bf8 Rhf7 Bg7 Ra7+
bnK2nk1/5brr/1R1p4/1B2N1B1/1p2PNB1/b1QQq1r1/1RB2p2/NrR5 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 b5 Kd3 g5 Ke4 f5+ Kd5 Kf7 a4 d6 h4 d3 e4 g4 c4 b3 h6 f4 h5 b4 a5 f3 h7 f2 c5 d2 h6 g3 a6 g2 a7 b2 e6+ Ke8 c6 Qb6 c7 Bd7 c8B Qd8 e7 Kf7 e8B+ Ke7 Na3 b1B Nc2 Nc6 Nh3 g1R Bb5 Rg4 Nf4 Qc7 Ra2 Bg7 Rb2 Kf8 Na1 Rg3 Bd3 Qb7 Bc2 Qb6 Qf1 d1R+ Qd3 Rb8 a8R Qe3 Ra6 Rb7 Rb6 Nb8 Bd2 Ba4 Ke6 Ne7 Bb5 Ng6 Bcd7 Rg8 h8Q Bf6 h7 Ba2+ Bb3 Rb1 Rc1 Bg5 Qhc3 Rg7 h8N Kg8 Nf7 Rc7 Ne5 Nf8+ Kd5 Rh7 Bf5 Rcg7 Bg4 Ng6 Ke6 Bf6 Ba6 Bc6 Bb5 Ba8 Nd5 Qc5 Bg5 Qe3 Bc2 Nf8+ Kf5 Rb7 Nf4 Bd5 Bh6 Bh8 Bg5 Rbg7 Kf6 Bf7 Ke7 Rg6 Kd8 Bf6+ Kc8 Rgg7 Nc6 Be5 Qc5 Bd4 Ne5 Bc3 Rb3 Bb2 Qcc3 Ba3 Rb2 Rg1 Qc5 Rg2 Qcc3 Rg3
Qrr1k3/4r3/1N1p2n1/B1Rb2pN/4K2b/RB1n1Q1p/P3nq1N/Q1Q1nB2 w - - 0 1 illegal: No proof kernel
3rN2k/2r1R3/nBP4b/3q3b/1nRRp1NK/b2R2Q1/BNpp4/2Bn2nQ w - - 0 1 illegal: No proof kernel
1k6/1n4R1/QNPp1K2/1n1nB1R1/rBb1r1RR/4p1q1/Np4N1/2QrnBb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 b5 Kd3 g5 Ke4 e5 h4 b3 a4 g4 c4 g3 f4 d6 c5 Kd7 f6 Kc7 h6 g2 h7 b4 h5 d3 f5 b2 a5 b3 a6 d2 a7 Qe8 f7 Bh6 f8R Na6 c6 Nb8 f6 Qf7 Ra4 Qd7 f7 Ba6 Nh3 g1N Nf4 Qe7 Kf5 e4 Nc3 b1N Ng2 b2 Rh4 e3 Na2 Nf6 Rg8 Nc3 f8N Bf4 h6 Nf3 Nd7 Bh2 Nb6 Ne1 Rg7 Re8 h8R Nfd5 h7 Bg1 Rhg8 Bc4 h8B Na6 Rg5 Nc5 Be5 Nb5 R8g7 Nb7 Kg6 Be2 Rag4 Bc4 Qc2 d1R Bd2 Qd7 Bb4 Re7 Qc1 Qc8 Rf4 Qh3 Rfg4 Qg3 Kf5 Rf8+ Kg6 Rf4 a8Q Re4 Qa4 Kb8 Qa6 Rf7 Qc3 Rf2 Qc1 Rc2 Kf7 Rc3 Ke6 Ra3 Kf5 Ra4 Kg6 Ndc3 Kf6 Nd5+
b2RQ1B1/1Q1n1rb1/P2r4/2RNpRn1/nB2p3/2R2Nqb/1k4np/4KNQ1 w - - 0 1 illegal: No possible last move
2kb1R2/b7/pBNQ1Q2/1nR3Rb/nN4N1/1r1P1Rp1/rp2qBB1/1K1bn3 w - - 0 1 illegal: No proof kernel
3K2R1/2Q3R1/p2n1N1k/4N1R1/QbBn2b1/1P2BrpN/1p5n/QRrqn2r w - - 0 1 illegal: No proof kernel
B7/Q1N2b2/pPnr1b2/pbk3BR/2B2pNq/n2K2R1/b1B4r/Q1R3Nr w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 hxg5 b6 a5 bxa5 cxd5 Qf6 Rh5 Qd6 Rh1 Qd8 e4 Ke7 Ke2 Kd6 b4 c5 g4 f5 d4 h5 g6 h4 g7 a6 g5 h3 b5 c4 e5+ Kd7 b6 c3 d6 Kc6 d5+ Kb5 e6 h2 e7 c2 e8N Rh7 g6 Qf6 d7 Nh6 d8R Ng4 g8B Ne3 d6 Nc4 g7 Be7 d7 Nc6 Nh3 Kc5 Nf2 Na3 Ng4 f3+ Ke3 f2 Bd5 Nb4 g8B Rh8 Nc3 Qf8 Bh7 Qf6 Ne2 Ra7 Rg1 h1B Ba8 Nc6 Rg3 Bd5 Bg6 Rh1 Ng1 Ba2 Bd3 Qh4 Be2 Bf6 Bc4 Bh8 Bd2 c1R Ke2 Qh2 Bh6 f4 Bc2 Rb7 Qe1 Ra7 Qc3 Rf1 Rc1 Bf6 Qa1 Rc7 Kd2 Rd1+ Ke2 Re1+ Kd2 Re2+ Kd3 Qh4 Bd1 Ne7 Bc2 Bb7 Rb8 Bd5 d8Q Bf7 Bg5 Nc6 Qd7 Rc8 Qa7 Rd8+ Bd5 Rd7 Nc7 Rd6 Rh8 Rd2+ Ke4 f1B Rh5 Rdh2 Bdb3 Bb5 Bc4 Nd4 Kd3 Nc6+
Rb1RQN2/BRQ2rkp/4Bp1b/6B1/1nq2np1/1PK3N1/1Q1R2b1/1rb4r w - - 0 1 illegal: No proof kernel
B1n1n1R1/Br1r2p1/3Q1r1k/3R1R2/q2bNp1p/N3n1P1/1bBr2K1/2NR2Q1 w - - 0 1 illegal: No possible last move
1R1b1b2/4QpQP/B1RBrqpp/1QK5/6n1/b1N1k2b/3r1rn1/2Q1B1NR w - - 0 1 illegal: No proof kernel
3Rn3/N2Kp3/2PR1n2/1bkb1pR1/R1rpB1q1/2BQ1r2/4nn2/b1BQN1Q1 w - - 0 1 illegal: No proof kernel
5K1B/b1Qp4/4k2N/BrBn2R1/Nqpp1nr1/1Q1P2BN/1b3Q1r/1R1b2b1 w - - 0 1 illegal: No proof kernel
BbN1nb1k/1Qqp2rp/2P1p2B/n2rnb2/2N5/2Q2R2/BR1QRK2/n5Q1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 f4 Kg7 b4 a5 g4 a4 g5 d3 g6 a3 c5 h3 f6+ Kh6 f5+ d2+ Kf2 a2 g7 h2 b6 Qc7 f7 Ra5 b7 Rb5 f6 Na6 b8R Qe5 Nc3 Rb6 b5 Nc7 Nd5 Rd6 b6 Ne8 b7 Qb2 Nf3 Qb5 Nb6 Qa5 Ne5 Rd5 Nec4 Qc3 Rb1 a1B Bg2 Qc2 Rb4 Be5 Rb3 Bd6 Re1 h1N+ Ke2 Kg6 Rf3 Nf2 Ke3 Be5 Re2 Nd3 Qg1 Bg3 Bh1 Ne5 Bg2 Bf4+ Kf2 d1N+ Ke1 Bh2 Bh6 Ne3 Kf2 Qb1 Ra8 Qa2 b8Q Qa7 Qb7 Nc2 Rb8 Na1 Bg5 Nh6 g8B Nf5 Bh6 Nd4 Bh1+ Kh5 Bg2 Ndc6 Bh1 Na5 Bg2 Bg7 f8Q Kg6 Be6 Rg8 f7 Rd2 Bd5 e6 Qd6 Bf8 Qdc6 Rg7 Qcc7 Bd6 f8Q Rd3 Qf4 Bf8 Qd2 Bf4 Qbc6 Ba6 Nc8 Bb5 Q7b6 Qc7 Qa6 Ba4 Rb2 Bc2 Qab7 Rd4 N4b6 Bd3 Ba2 Bf5 Nc4 Rd5 Bh1+ Kf7 Bg2 Kg8 Bh1 Qb6 Bg2 Kh8 Qcc7 Nf7 Qe5 Bh2 Qec3 Ne5 Qb8 Rd6 Rg3 Nf7 Ba8 Rd5 Qb7 Qc6 Rge3 Bb8 Rf3 Qc7 c6 Ne5
1b4qN/r1p2P2/n3rkr1/1nnb4/1Q3KpR/Qnp1B1QN/R2B4/3NNB2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 g4 hxg4 a4 d5 axb5 dxc4 Ke2 Kf7 Ke3 e5 h4 g5 d4 a5 f4 a4 b4 e4 d5 a3 b6 g3 f6 g2 b7 a2 h5 g4 b5 Ra6 h6 Nd7 b8B Be7 d6 Rb6 h7 Qe8 f5 Nh6 Nc3 Rf8 Bd2 Nc5 d7 Rg8 Rh4 Bb7 Ba7 Re6 b6 Na6 Qe1 Rg6 Qg3 Bd5 b7 Bc5+ Kf4 e3 b8Q e2 Qb4 e1N Nd1 c3 Nf3 g1R d8Q Bd4 Qdd6 Qg8 Qa3 Rg2 Qdb4 Bg1 Bae3 Rf2 Rb1 a1N Rb2 Nb3 Ra2 Rh2 Bc1 Rb2 Bed2 Ba7 h8N+ Ke8 Be3 Nf7 Bcd2 Nd6 f7+ Ke7 f8N Bb8 Nh7 Rb1 Nhg5 Ra1 Nh3 Kf6 Qaa5 Nb5 Qaa3 Nc2 Ne1 Nbc5 Qaa4 Ncd4 Qba3 Ndb3 Q4b4 Ke7 f6+ Kd7 f7 Ke7 Rc2 Ra2 Qb2 Ra5 Q2a3 Kf6 Ra2 Ra4 Qc4 Nb4 Qe4 Ra7 Qb1 Nba6 Qbb2 Nc1 Qbb4 N1b3
n3R2r/1qpb1pQN/3r3Q/3prP1R/kbQN4/3Q2b1/n1K3rB/4R1BN w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Kd2 a5 g4 h5 f4 a4 b4 a3 e4 a2 b6 h3 b5 h2 e5 h4 g5 h3 g6 Rh5 g7 Ba6 b7 Rg5 b6 Rg3 Nc3 Qe8 d8Q Nh6 g8N Rg7 d7 Nf5 Nge2 Bd3 Nf6 Ra6 Nb5 Nc6 b8Q Rg2 b7 Ne3 Nh7 Nb4 Qg5 Bf5 d8Q Qc6 Qdf6+ Kd7 Qfg7 Nc4+ Kc3 Qb6 e6+ Kc6 e7 Bd7 e8R Qa7 f5 Nb6 Qf1 Na8 Q5h6+ Kc5 Kb3 Rd6 Ng3 Kb6 Qf3 Ka5 Nd4 Qb6 Kc3 Ka4 Qd3 Qa7 Rhe1 h1R Bf4 h2 Qd8 Rf1 b8B h1R Qdh4 Qb7 Ba7 Rff2 Rab1 a1B+ Rb2 Rh3 Nh1 Re2 Bh2 Re5 Qhg4 Rh4 Qge2 Na2+ Kc2 Rh5 Rb3 Bc3 Qc4+ Bb4 Rh3 Be7 Qd3 Bh4 Qc4 Bf2 Qed3 Rhg5 Rh5 Bg3+ Ne2 Rg4 Bag1 Rgg6 Qh8 Rg8 Q8g7 Bf2 Nd4 Rh8 Kb2 Bg3+ Kb1 Bf2 Kc2 Bg3+
B3b2b/pn4bk/3rrnb1/N4NQ1/2KB4/1BR2p1B/Pp4R1/QNrq2Q1 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 d4 g5 Kd2 f5 Kd3 Kf7 h4 Kg6 e4 b5 d6 f3 d5 f4 d7 g3 d6 g4 h5+ Kg7 c6 g2 c7 f2 e5 g3 h6+ Kh7 e6 f3 e7 b4 e8B b3 Bf7 Na6 Ne2 g1R Kc4 g2 Rh2 Rb8 Be3 Qf6 d8Q Rh1 d7 g1B Nd4 Qd6 Rg2 Nc5 Nf5 Rb6 Qg5 Nb7 d8N Bd7 c8B Nf6 Nc6 Bg7 Na5 Re8 Bd4 Re6 Bd3 Bh2 Qg1 Be5 Be4 Be8 Bd5 Qd8 Bd7 Rbd6 B5c6 Nc5 Ba8 Nb7 Bg8+ Kh8 h7 f1B+ Re2 Bh3 Rg2 Bg4 Na3 Bgh5 Rc1 Bhg6 Nb1 Ne4 Rc3 Nf6 Q1e3 Rc1 Qg1 Rb6 Nh6 Red6 Bh3 Re6 Nf5 Qd6 Be3 Qd1 Bd4 Rbd6 Na3 b2 Kb4 Nd7 Nh4 Bgf6 Bf7 Re7 Bb3 Ree6 Kb5 Bh5 Kc4 Rc2 Qc1 Bhf7 Qa1 Bg6 Nb1 Rc1 Nf5 Bh5 Ng3 Kg7 h8Q+ Kg6 Qf8 Bh8 Qf4 Kh7 Qfe3 Bhg6 Qg5 Beg7 Nf5 Nf6
3Q3Q/p1qP1n2/K2R1rn1/1pkb4/2Nb3Q/1RRn3p/Brr2B1N/1R1N1r2 w - - 0 1 illegal: No proof kernel
1k1n3B/2R1Q3/1bR5/nq1q4/pK1pn2P/QRQrpb2/3RBn2/4NNBr w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 f4 e5 h4 g5 b4 d5 c4 Kd7 c5 Kc7 c6 g3 b6+ Kd6 b7 Kc7 f6 d3 Kc3 e4 f7 d2 b5 e3 f5 g4 f6 g2 Rh2 g3 Nf3 g1Q Qe1 g2 Be2 Nh6 Bb2 Bc5 f8Q Bg4 f7 Bb6 Qa3 Qf1 f8Q g1N Qfe7+ Qd7 Qc1 Nh3 Ne1 d1N+ Kb3 a4+ Kb4 Rg8 Nd2 Nf7 Qcc3 Nhf2 Rc1 Ne4 Ba1 Qf6 Nf1 Ndf2 Rc2 Bh5 Rd2 Qe6 Rg2 Bf3 Rg6 Nd8 Rh6 Rg1 Bb2 Bd4 Rh7 Kb6 c7 Ka7 c8R Qa6 Rc6 Bb6 Ba1 Rh1 Rf7 Qf5 Bb2 Nd7 b8B+ Kb7 Bc7 Ndc5 Bh2+ Qd7 Rh7 Nb3 Bg1 Na5 Rg7 Kb8 Rf7 Ba7 b6 Qf5 b7 Bb6 Qc4 Qh5 Bh8 d4 Qcc3 Qd5 Qe8 Ka7 Rd7 Rc8 Qe7 Kb8 Rdc7 Ng4 Qc4 Qg8 Rg6 Ngf2 Rd7 Ka7 b8R+ Bc7 Qc2 Qge6 Rb5 Qa2 Rc5 Ka8 Rc3 Qd5 Qd3 Bb6 Rb3 Rc3 Rc7 Kb8 Qc2 Rd3 Rgc6 Qd7 Qcb2 Qd5 Qc3 Qab5#
4QR1N/2k5/4Q1r1/n3P1pr/1Qbb1p1p/KqNn1QNB/b2RbRq1/B7 w - - 0 1 illegal: No proof kernel
1Bq2r2/1rr3rb/2Q5/2P1K1b1/2n2B2/pRN2p1Q/pRqQ2N1/1NnN1Bk1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 bxa4 d4 cxd4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 h4 a5 b4 g5+ Kf5 a3 e3 g4 b5 a2 h6 g3 e6 a4 c3 g2 h7 d3 h5 d2 h6 a3 b6 Na6 b7 Nc5 b8B Nb3 e7 Nf6 e8N Be7 Rh4 Rf8 h8Q Ng4 h7 Ne5 Rh2 Ra7 Ng7 Bg5 Ne2 g1R c4+ Kc5 e4 Rc7 Nec3 Kd4 c5 Ke3 Qc2 Nc4 e5 d5+ e6 d4 Qd1 Bb7 e7 d3 Re2+ Kf3 e8Q Qc8+ Qe6 f6 Qe1 d1Q Rb2 Rg4 Bf4 Nc1 Qd2 Qc2 Qd7 Rg3 Ke6 Be4 Nf5 Rg2 Ne3 f5 Ned1 Rg4 Qf6 Rg3 h8N Rg2 Be3 f4 Ng6 Kg3 Qf5 Kh2 Nh4 f3 Bf4+ Kg1 Qh3 Bh7 Kd5 Rg4 Qc6 Rb7 Qe1 d2 Ng2 Nd6 Ke5 Rg3 Nf2 d1R Qe2 Rd4 Nfd1 Ra4 Qe1 Raa7 Qd2 Nc4+ Kd5 Rbf7 Rb3 Bh6 Kd4 Nb2 Ke5 Rfc7 Qd4+ Qf2 Nd2 Rab7 Rb1 Rgg7 Qd8 Bg5 Qd4 Na4 R1b2 Nb6 Ndb1 Nc4+ Kd5 Ne3+ Ke5 Qc2 Qd2 Nc4+
1B4r1/3K1QQQ/1rq5/p2BrN2/Qr1n1R1p/3PRqnN/4p1b1/1kb1B2R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 e6 b4 e3 b6 c6 b5 h3 d3 h2 b7 e2 g5 e1R g6 h4 b6 Be7 g7 Qf8 f5 Nf6 g8Q Nh5 f6 Ng3 f7 Ra6 Nc3 Re5 Bd2 Bg5 Qg7 Rg8 Be1 Bc1 Nce2 c5+ Kc4 Nc6 Kb5 c4 b8R c3 b7 c2 Ra4 Bd7 Nh3 Be8 Rf4 Nd4+ Kc4 Bd7 Bg2 Rb6 Re8 Bc6 Re7 Qe8 f8Q Qh5 Qff7 Qf3 Kc3 Kc5 b8B Kb5 d6 Ka4 Kc4 Ka3 d7 Kb2 d8Q Kb1 Qc7 Bd5+ Kc5 Rb4 Rg1 h1Q Kd6 Be4 Re8 Bb7 Ke7 Qc6 Be4 Qf3 Rh1 Reb5 Nc3+ Kb2 Kd8 e5 Rg4 Qh6 Qe6 Qe2 Qcd6 Rb6 Kc7 Be3 Qef7 c1R Qdg6 Qf2 Bf3 e4 Q6h7 Bd5 Qa4 Qc6+ Kd8 Qf1 Nb5 Kb1 Nd6 Rc5 Bg2 Bc1 Nf5 e3 Rf4 e2 Bf3 Qh6 Kd7 Bb7 Bh5 Bg2 Re3 Re5 Bf3 Qf6 Bc6 Qf3 Bd5 Qc6+
2R2q1k/4q3/3R1bbP/1nB1r3/NBB1Q3/1nBKpqpN/pQ4RQ/1q4r1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 b4 c5 d4 e5 f4 g5 h4 Kg7 h5 a5 d6 a4 d7 e3 f5 a3 b6 c4 d5 a2 b5 e4 b7 c3 d6 c2 b6 g3 Nc3 g2 Qe1 g4 Bd2 c1Q Rh2 Nc6 b8Q Qb1 b7 Na5 Nh3 g1Q Na4 Qh1 Rg2 Be7 Bc3+ Nf6 h6+ Kg8 Bb4 Qf8 d8B Nd5 d7 Nb3 f6 Ra5 Qh2 Nc7 b8Q Nb5 f7+ Kh7 Bc3 Bf6 Be7 Rg8 d8R Bf5 Beb4 Kh8 Rc8 Rg5 Qb7 Bg6 Qd2 Re5 Qb2 g3 Qc6 Ra6 Qb7 Rd6 Qc6 Rd1 Qb7 Qd8 f8B Qe8 Bfc5 Qf8 Bd2 Qc2 Rc1 Qb1 Rc4 Rc1 Bdc3 Rd1 Rd4 Rc1 Rf2 Qg2 Rd1 Qf3+ Ke1 e2 Rg2 Re8 Qd5 Qbd3 Qc4 Qd8 Qd3 Re5 Qd4 Qde7 Qc4 Na5 Kd2 Ra1 Kc2 e1Q Rd6 e3+ Qe4 Nb3 Bc4 Qg1 Kd3 Qc1 Qc2 Qb2 Qf2 Rg1 Qd2 Qc1 Qb2 Qb1+
R7/Nr1nK3/2RB2kp/Qn1qp3/nQn3Pb/Rp3rB1/2bN3N/q2B2N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 b5 Kd4 c5+ Ke5 e6 d4 b3 a4 h6 f4 h3 g4 b2 a5 b4 d6 b3 f6 c4 f5 c3 a6 c2 d5 h2 a7 Bd7 Qd4 Bg7 Ra3 Qe7 Nd2 b1Q Be2 Bb5 d7 Qd8 Kd6 e5 Bd1 Bd3 Qb4 Nc6 Qa5 Rb8 a8R Rb5 Qb4 Qa5 d8Q Nd4 Kd7 Qb2 d6 Rb7+ Qc7 Nb5 Kd8+ Kf8 f7 Qa1 Qb6 Nf6 d7+ Nd6 Qc7 Qd5 Qca5 Rg8 Ra7 Bh8 Ra8 Kg7+ f8N Nc4 Ke7 Be4 Ng6 Rf8 Nh4 Bd3 Bb2 c1N Bc3 Na2 Nhf3 Bc2 Bd4 Nc3 Bf2 Nb5 Bg3 Rbb8 d8N Nd7 f6+ Kg6 f7 Rb7 Nc6 Bg7 Nh3 Bh8 Re1 h1N Na7 Nf2 Nh2 Nd3 Ng1 Ndb2 Re3 Na4 Rc3 Rg8 f8B Bf6+ Ke8 Rg7 Bd6 Re7+ Kd8 Rf7+ Ke8 Bf5 Rc2 Bh4 Rc3 Rf6 Kd8 Bc2 Ke7 Ncb2 Rc5 Nc4 Rc6 Rf3+
r2r2QQ/1N2q3/1pBB2b1/p1K5/1R1n1B2/bB2Q1qN/1NP1p3/1R1nnk1n w - - 0 1 illegal: No possible last move, all moves rejected
3N4/1nqb3P/1q4NQ/p2R1n1B/kr4rN/1pB5/np1B1QnB/R3K1bR w - - 0 1 illegal: No proof kernel
BB1r1r2/QNq1N1pr/p4R2/1B2R3/1nb4k/nrpP1qb1/1B5N/3R2KQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 b4 Kg5 h4+ Kh5 e5 f5 e6 c5 e7 a6 e8B+ Kh6 h5 Kg5 d6 c4 d3 Nf6 h6 Nc6 h7 Qc7 b6 Bb7 b5 Nd4 d7 Rd8 Nc3 Bd5 b7 Bd6 b8B Nc2 b6 Na3 Bb2 f3 b7 f4 Bg2 g3+ Kf1 f2 Nf3+ Kg4 Nh2+ Kh4 Rb1 Be6 Nd5 c3 Ne7 Bc4 Qe1 Rf8 Rd1 Nd5 Be4 Nb4 h8R+ Kg5 Kg2 f1R Rh6 Rf2+ Kg1 f3 Rg6+ Kh4 Rf6 g2 Bd5 Bg3 Qf1 Rc8 d8N Rh8 Bb5 Rh7 Ne6 Rf8 Nc5 Re2 Bdc6 Re5 Re1 Rd5 Re5 Rd4 Ba7 Rd5 b8Q Rdd8 Ba8 Bf4 Kf2 g1R Nb7 Rg5 Qg2 Bg3+ Kf1 f2 Rg1 Rg4 Qh1 Rgd4 Kg2 R4d6 Rd1 Rb6 Kf1 Qc5 Qc7 Qd6 Bb8 Qc6 Ke2 f1Q+ Ke3 Qf5 Ke2 Qfe4+ Kf1 Qf3+ Kg1 Qd7 Na5 Qd6 Qa7 Qc7 Nb7 Na2 Bc6 Rb3 Bb5 Nb4
n1BQK3/2QP1Bb1/Q1b1nq1r/3b1k2/R6B/NpR2qp1/2bp1R2/2NrQ3 w - - 0 1 illegal: No proof kernel
1rQ3R1/b1p1kn2/3R1Nn1/q1q1b2N/1R3Br1/1B2Rpb1/PQ1K2Bp/4Nb2 w - - 0 1 illegal: No proof kernel
1Rr1Q3/1np5/2B1R1K1/1Q2bp2/2b2qkB/q2pQ2N/BRq2qP1/r2nBN2 w - - 0 1 illegal: No proof kernel
1n1B4/1kpr4/3B3N/Pq4KR/Qnn1p3/1RrQ1n2/qBBNbpQ1/4b1R1 w - - 0 1 illegal: No proof kernel
3K2bB/2p2B2/2B5/2P1bQR1/NQq2nnb/p1p4r/qq1RNkB1/nR4N1 w - - 0 1 illegal: No proof kernel
Qq5r/1Q1r1k1B/p1Q1pB1p/R1N2q2/3NB1RQ/3qrn1R/P7/b1nn2K1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 f4 b5 d4 b4 c4 h6 g5 e3 g6 b3 c6 b2 c7 e2 c8R a6 c5 e6 f5 Ne7 d5 Ng8 c6 Bb4+ Nd2 b1R g7 Bc5 d6 Bb4 c7 Bc5 f6 Ba3 d7+ Kf7 Ne4 Rb2 Qd6 Qe8 d8Q Rb3 Bg5 Nd7 Nc5 Re3 Rh3 Ne7 Nf3 g1N Qc6 g2 Kf2 Bb2 Nd4 Ra7 Rc1 Ba1 Rc4 Nd5 g8B+ Kg6 f7 Nc3 f8Q Nf3 Qb7 Nde5 Bf6 Qb5 Ra4 Qd3 Ra5 Qf5 Rb8 Qd3 c8Q Nd1+ Kg3 g1Q+ Bg2 Qf5 Qcc6 Nd3 Qde7 Qf1 Qfc8 Ng5+ Kh2 e1Q Be4 Qb4 Qcf8 Qf3 Kg1 Nc1 Qfc8 Qb6 Qa8 Qd8 Rb4 Rd7 Qc8b7 Qb8 Qd8 Qe2 Bh7+ Kf7 Rb2 Qb5 Rg2 Qe2 Rg4 Qc2 Qdb6 Qd3 Qb4 Rg8 Qe1 Rh8 Qh4 Nf3+
1k6/RbNrQBrr/q3R1p1/3r2PQ/1nK2Qpn/1N2Np2/2n1rB2/2BN4 w - - 0 1 illegal: No proof kernel
2n2R1q/r4n2/p1k3pr/1b2QNPB/3pR1n1/1B1rN3/1QnK2n1/N2B1QB1 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 g6 h6 Bg7 hxg7 Qb6 Be3 Qc7 Bc1 Qd8 e4 d5 b4 Kd7 g4 h5 c4 f5 e5 f3 e6+ Kc7 b6+ Kc6 c5 f2+ Kd2 a6 b5+ Kb7 e7 d3 e8N d4 g5 f4 Rh4 f3 Be2 f1R Re4 f2 Nf3 h4 Ne5 h3 Ng4 h2 Ne3 h1N Bh5 Nd7 c6+ Kb8 c7+ Kb7 Na3 Rh6 Nac2 Ne7 g8B Ra7 Ng7 Ne5 Bb3 Nf7 Ngf5 Qh8 Ra2 Bd7 Na1 Rg1 Qf1 Nc8 Rc2 Rg2 Rc6 Rg3 Rf6 Nd8 Rf8 Nf7 Ba3 Bc6 Bd6 Rh3 Bh2 Bd7 Kd1 d2 Bg1 Be8 Kc2 d1N Kd2 Rg3 Ng4 Rc3 Nge3 Nb2 Bhd1 Nd3 Bh5 Nb4 Bbd1 Ncd6 Bb3 Nc2 c8B+ Ka8 Bd7 Nc8 b7+ Kb8 Bde6 Kc7 b6+ Kc6 b8Q Bd7 b7 Be8 Qe2 Bd7 Qe5 f1N+ Kd1 Be8 b8Q Nf2+ Kc1 Ng4 Qe1 Nfh2 Qf1 Nf3 Bec4 Bd7 Be2 Nh4 Kd2 Ng2 Qb4 Be6 Bd1 Bc4 Qa3 Bb5 Qb2 Rd3+
2R3bB/bn3p1n/N1Rbn1r1/2R3p1/2Bq1P2/Q2pK1bb/6QR/Bk1N2N1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 e4 d5 Qe2 a5 Nf3 d3 Ng1 d4 Qd1 Ra6 Ra2 Rd6 Ra1 Rd5 exd5 Rh4 Nd2 Rh5 Nb1 Rh8 Kd2 Kd7 c4 Kd6 f4 Kc5 h4 Kb4 c5 g5 h5 e5 b6 g3 h6 e4 h7 a4 d6 g2 b3 a3 b7 a2 d7 Na6 b8N Bd6 c6 Nf6 c7 Rg8 h8B Rg6 Be2 Nh7 Bb2 Nc5 Nc3 Nb7 Rc1 a1N Qf1 Nc2 Ba1 Ka3 Nd1 Ka2 b4 Qf6 d8R Bh3 c8R Qe5 Nf3 g1B b5 Qc5 b6 Qe5 Rc5 Bf2 Rb1 e3+ Kc1 Qd5 Qg2 Qe4 Bf1 e2 Rh2 e1B Na6 Bg3 Rf8 Bef2 Kd2 Qd5 Rb3 Qc4 Rc3 Kb1 Ng1 Qb4 Rfc8 Qa4 Nb2 Qd7 Kd1 d2 Ke2 d1B+ Kd3 Bdg4 Nd1 Bf5+ Kd2 Qd8 Bc4 d3 R5c6 Nd4 Rc2 Nc5 b7 Nde6 b8Q+ Nb7 Qa7 Bd4 Qc5 Qd7 Qa3 Ba7 Bd5 Qd8 R2c5 Qf6 Bb3 Qd4 Bc4 Rf6 Qa5 Nhf8 Bb5 Bh7 Bc4 Bg8 Qc3 Nh7 Qa3 Qd5 Ke3 Rg6 Qf3 Qe5+ Qe4 Qg7 Qg2 Qd4+
1k1K1B1Q/3p1n1B/q2R1p2/nb1Np1R1/3P1b2/bBb5/N2Q1Nrn/B2b1Q2 w - - 0 1 illegal: No proof kernel
1n5N/pBQ1KN2/P1BR4/3r1QB1/1pkbpr1q/Brr2r2/6RR/Nq4n1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 h5 f4 b5 d4 b4 a4 h4 c4+ Ke6 a5 h3 f5+ Kd7 d5 e5+ f6 h2 d6 Ke6 a6 e3 d7 e2 c6 e1R c5 e4 c7 Rh7 c8Q Ne7 f7 Qa5 d8B+ Nd7 Qf3 Kd5 c6 Rd1 c7 Nf6 Bb5 Qb6 Qff5+ Kd4 Nd2 Bg7 f8N Nh5 Ba3 Nf4 Ng6 Nc6 Nh3 g1Q Nh8 Nb8 Bc6 g2 Nb3+ Kc4 Ra2 Rf1 Rd2 Qbf2 Na1 Ne2 Rd6 Rh4 Qb7 Rd1 c8B Rd5 Qc7 Qb1 B8b7 g1R Kg6 Re1 Kf7 Ng1 g5 Rf4 g6 Rc1 Ke7 Bd4 g7 Rc3 g8R Qh4+ Ng5 Nd7 Qh3 Rf1 Ke6 Rff3 Bf6 Rc8 Ke7 Nb8 Rg7 Rg8 Ngf7 Rb3 Rg3 Rg4 Bg5 Rgf4 Qf5 Nh3 Re1 h1R Re2 Rc1 Rh2 Ng1 Rgg2 Rcc3
krqbn2n/NpQ1Qq2/5pR1/RnB1BN2/Q4Qp1/6K1/2n1B1P1/Rb2n3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 e5 Nc3 exf4 Nb1 d5 cxd5 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bf5 Na3 Be6 Nb1 Bc8 Kf2 Kd7 a4 h5 e4 c5 d4 Kc7 e5 b3 a5 c4 a6 h4 d6+ Kb6 g6 Ka7 e6 f3 d7 c3 d5 b2 d6 h3 e7 c2 e8Q f6 g7 h2 Ra5 Be7 Na3 b1N Be2 Nc3 Qf1 Nb5 Bb2 c1N Kg3 f2 Nf3 Ka8 Be5 Nd3 Nh4 Ne1 Nf5 Nh6 g8R Nf7 Rg6 Rg8 Rg1 h1Q Qf8 Qe8 d8Q Qh7 d7 Nh8 Qc7 Qhf7 d8B Be6 Rh1 Ba2 Qg7 Bb1 Qf8 Nd6 Nb5 Nc6 Na7 Nd4 Qg7 N4b5 Rg1 Bf8 Be7 Qc8 Qh7 Ne8 Bc5 Be7 Qg7 Nd3 Qc1 Ne1 Qf4 Bd8 Qf8 Nf3 Qfe7 Rf8 Rc1 Ne1 Rd1 Be4 Rda1 f1N+ Kf2 Ne3 Kg3 Bd3 Bf3 Qb8 R5a4 Ned6 Re4 Bb1 Be2 N3c2 Rea4 Re8 Nc8 Rf8 Qa5 Bb6 R4a2 Qc7 Ra4 Kb8 R4a3 Qd7 a7+ Kc7 a8Q Re8 Q8a6 Kb8 Na7 Ka8 R3a2 Rb8 Ra3 Bd8 Qc7 Qc8 Qac6 Ne8 Ra5 Nba3 Qca4 Nb5
3q2r1/5b2/1B1n2R1/1QpkN3/N3RbNp/1KPp3b/Bb2b1q1/BN3RQn w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 g5 g4 e5 f4 exd4 h4 gxf4 g5 Ra6 h5 Rg6 hxg6 Be7 Be3 Bd6 Bc1 Bf8 Kd2 Ke7 e4 Ke6 b4 c5 e5 h5 c3 f5 Kc2 d5 g7 h4 b6 d3+ Kb3 d4 b7 f3 g6 f4 b5 f2 b6 d2 Nf3 Ne7 g8N Kd5 e6 Na6 b8N Nb4 b7 Nf5 g7 Bd6 e7 Nd3 e8Q Be6 Nh6 Rg8 Ra4 Bf7 Ne5 f3 Nhg4 Bc7 Rg1 Nd6 Nbd7 Bb8 Bg2 f1B Bb2 Nf2 Ba1 d3 Re4 Nh1 Qe1 Bc7 b8B f2 Ba7 Bb8 Bf3 Bh3 Bb6 f1Q Qc1 Qg2 Rf1 Bc7 Bd1 Bb8 Bc2 d1B Qe3 Nf5 Qg1 Be2 Bd1 Nd6 Bc2 Rf8 g8R Bc7 Rg6 Rg8 Nf8 Bb8 Qb5 Bc7 Nfd7 a4+ Kb2 a3+ Kb3 a2 Ba7 Qf6 Nb6+ Ke6 Na4 Kd5 Bb6 Qg5 Nd2 Qd8 Bb1 Bb8 Bb2 a1B Ba2 Qg5 Bc1 Bb2 Nb1 Ba3 Bb2 Qd8 Ba1 Bb2 Nf2 Bc7 Nfg4 Nb7 Nc6 Bf4 Nce5 Nd6
B1K1N2Q/rb3r2/qp2k2N/BPBp1N1q/p1qR4/3R4/3Q1nN1/1Q1n1qr1 w - - 0 1 illegal: No possible last move, all moves rejected
2q2nN1/N4bkB/q7/1q1QrQ2/1KR2Rp1/NNn1pBRp/3B2Pr/2r2q2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Ke2 g5 Ke1 g4 Be2 Bh6 Bf1 Bg5 hxg5 Bb7 Be3 Ba6 Bc1 Bc8 Kd2 Kf7 b4 e5 f4 h5 c4 a5 b6 d5 f5 d3 Kc3 d2 c5 h4 g6+ Kg7 c6 a4 c7 e3 b5 a3 b7 h3 b6 e2 Nf3 e1Q Kb4 d4 Be2 e4 Rf1 a2 Na3 d3 Nd4 Ra7 Bf3 Ra5 Nb3 Nd7 b8N Ngf6 b7 Nf8 Nc6 Qe2 b8R Be6 c8B Re5 Na7 Bf7 Be6 Rg8 Rc8 e3 Rc4 Ne4 f6+ Kh8 Rf2 Qc8 Bf5 Nc3 Rb1 a1Q B5e4 Be8 f7 Kg7 Rb2 Rh8 Bf5 Rh5 Rc2 Rc5 Rf4 Rc7 B5e4 Re5 Bf5 Na4 Rcc4 Nc3 Nc2 Qaa6 Na3 Kf6 g7 Rc6 g8N+ Kg7 Qf1 d1Q Bh7 d2 Qh1 Qg1 Qh2 d1R Bd2 Re1 Qg3 Qgf1 Qh4 Ree6 Qd8 Re5 Qd5 Rd1 Bfe4 Rc1 R2f3 Rc5 Rg3 Ra5 Nc2 Raa1 Na3 Nd7 Nf6 Qfe1 Bg8 Rd1 Bf3 Rac1 Rc7 Q1f2 Rc5 Rh1 Bh7 Qff1 Ng8 Rh2 f8Q+ Kh8 Qff7 Nf8 Qf5 Kg7 Rc6 Bf7 Rc7 Qd7 Rc5 Qac8 Rc6 Qea6 Rcc4 Qdb5+
QNbBKn2/R2Q1p1b/2q3p1/QR1rbN1R/5pB1/qq6/3B1Pk1/1R2br2 w - - 0 1 illegal: No proof kernel
3b1b2/Rpp1Q2q/Q1rqRN2/1P3BN1/n2nN3/K1pk4/nB3nQ1/1b2B2Q w - - 0 1 illegal: No proof kernel
B2rr1qn/1KRNQ3/n4B2/p2bQ2R/2Q3Qr/P4pnN/1N3p1r/3Bq2k w - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 Kd7 c4 Ke6 d4 Kf5 c6 h5 d5 b5 c5 a5 g7 e5 c7 f6 a3 h4 g6 b4 c6 e3+ Kf3 h3 d6 h2 d7 b3 Nh3 b2 Qd5 e2 Nd2 e1R Be2 b1R Bd1 Bb7 c8Q Rb4 c7 Na6 Bb2 Ne7 Nc4 Qg8 Rc1 Ra4 Qe8 Rd8 c8N Re4 Qd3 Bd5 N8b6 Rh4 Bc3 Rb4 Bd4 Rb2 Rc3 Re2 Nb2 Rc2 Rc7 Rd2 Rf1 h1N Qc4 Ng3 Rh1 Rh2 Bc3 Nc8 Qe7 Nd6 Bd4 Nf7 Bc3 Re8 d8Q Nh8 Qdd6 Ra8 Nd7 Rd8 Ng1 Kg5 Nh3+ Kh5 Qdc5 f5 Q5d4 Qf7 g8Q Qf8 Qge6 Qg8 g7 Re1+ Qe4 Ree2 Qb6 Re1 Qg1 Ree2 Qg2 Re1 Kf2+ f3 Qf4 e4 Qfe5 Kg4 Bd4 Rf1+ Ke3 Rg1 Bc3 f4+ Kd4 e3 Qge2 Re1 Qg2 Nb4 Kc5 e2 Kb6 f2 Qg1 Kf3 Ka7 Qf8 g8B Na6 Bh7 Qg8 Bhc2 Be6 Kb7 Bf7 Ba4 Bd5+ Bc6 Nf1 Qgg7 Ng3 Qg4+ Kg2 Q5d6 f3 Bf6 Re8 Qde5 Rf1 Ba4 Rd1 Bc2 Rd3 Bd1 e1Q Nf8 Be4 Ng1 Rh6 Kb6 R2h5 Ba8 Rdd8 Nd7 Bd5 Rh4 Rh7 Rh3 Rg5 Rh6 Rh5 Ka7 Rh2 Nh3 Kh1 Rh4 Be6 Kb7 Rh6 Rh5 Rh7 Rf5 Rh4 Rh5 Bd5+
N1n4q/n1rQB1pB/B6p/QKR1NR2/1p1b2bB/5q1P/2Q3q1/qR1n2k1 w - - 0 1 legal: proof: f4 d5 g4 f5 b4 e5 c4 a5 cxd5 axb4 Nh3 b5 Ng1 Ra6 Qc2 Rf6 Qb3 exf4 Qd1 f3 Ba3 f4 Bc1 Rf5 gxf5 Kd7 Ba3 Ke7 Bc1 Ke8 d4 Kf7 Kd2 Kf6 Kd3 Kg5 a4 Kh4 e4 c5 h3 Kg3 a5 Kf2 a6 b3 a7 b2 a8Q b4 Kc4 h6 d6 Qe7 d5 Qe5 d7 Qc7 d8Q Qb7 f6 Rh7 d6 Bd7 e5 Qc8 f7 Ne7 e6 Rh8 Nc3 b1N Nb5 Nbc6 Nc7 Nc3 Rb1 Rg8 Qd3 Nd1 Kb5 c4 Qa5 c3 Na8 c2 Bd2 c1Q Qc2 Qa3 Qdc7 Qa1 Be1+ Ke3 Be2 f2 Nf3 f1Q Bh4 Qg2 Ne5 f3 Bd3 f2 Bh7 Qf3 Rg1 Qe8 Rg5 Nc8 e7 Bg4 d7 Qd8 e8B Bc5 f8R Bd4 Bf7 f1Q+ Bc4 Q1g2 Rff5 Re8 Rh5 Re7 Be2 Qh8 d8B Rd7 Qb7 Re7 Qd7 Rf7 Bhe7 Kf2 Bh4+ Kg1 Bde7 Qac3 Ka4 Qb2 Ba6 Qa1+ Kb5 Qf4 Nd3 Be5 Qd6 Nb6 Beg5 Nd7 Rf6 Nb6 Qe6 Ra7 Qd7 Nc8 Rf7 Qff3 Be7 Bb2 Rc5 Bd4 Ne5 Rc7 Rf5 N6a7+
kBqR1Q2/B5pR/6bq/1pbq4/QN1pr1P1/4q1KR/r3rQQ1/3nN2B w - - 0 1 illegal: No proof kernel
bn1qRRN1/1N3BQ1/3Kp1r1/2BR2pn/1pk1q3/4q3/Nr1B2Pn/q3Q2N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 fxe4 h5 d5 cxd5 g6 h6 Bg7 hxg7 Ra4 Bc4 Ra5 Bf1 Ra8 Ke2 Kf7 Ke3 c5 Kf4 b5 Ke5 h5 a4 e3 f4 e2 d4 e1Q+ Ne2 c4 a5 g5 a6 b3 a7 c3 d6 h4 d7 h3 d5 h2 f5 c2 f6 b2 d6 b4 Nc3 b1N Ra5 Qb6 d8B Na3 d7 Bb7 Rd5 Nb5 Na2 Nd4 Bd2 c1Q Rg1 Qa5 Bb6 Rh6 Bc5 Qd8 Rh1 Qh4 Ng3 Rg6 Qe1 e6 Be2 Nf3+ Kd6 Qe4 Rf1 h1Q Bd3 Qh8 Nh1 Nh2 Be2 Qh3 Bh5 Qa1 Rf2 Qhe3 Rf1 Nh6 g8N N6g4 Rf3 Kf8 f7 Kg7 f8R Nf6 Re8 Bc6 Bg4 Nh5 Rff8 Na6 Bf3 Rc8 a8Q Nb8 Qa7 Ba8 Bb6 Rc2 Bc5 Rb2 Qc7 Qf6 d8N+ Nd7 Nb7 Qd8 Ne7 Nb8+ Qd7 Rf6 Ng8+ Kg6 Rd4 Kf5 Bg4+ Kf4 Bf5 Rg6 Rd5 Qd4 Bg4+ Ke4 Bf3+ Kd3 Bd1 Qf6 Qg7 Kc4 Bg4 Qde4 Bf5 Rh6 Bg6 Qfd4 Bf7 Rg6 Qd1 Qf6 Qe1 Qd8+
r3nrnN/KQrp3n/6QQ/b1R1p3/5pQ1/k4Nqq/nRBRP3/2B4B w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 a4 c5 axb5 Bb7 h3 Bf3 g5 Bg4 hxg4 cxd4 Kf2 h5 b4 f5 c4 a5 g6 a4 g7 d3 g5 e6 c5 Ke7 b6 h4 b7 f3 Ke3 f4+ Kd4 h3 g6 a3 c6 Kd6 b5 h2 b6 f2 c7 a2 c8R d2 Na3 Nf6 g8B Qe7 g7 Ra7 Bh7 Ng8 Nf3 Ra8 Rb1 a1R Rb2 Na6 b8Q+ Nc7 b7 Qh4 Bc2 Qg3 Bg2 f1N Nc4+ Kc6 Rg1 h1Q Nd6 Qhh3 Bh1 Nh2 Nf7 Bb4 Qf1 Kb5 Qg2 Ka5 Rd1 Ne8 Qd6 Ng4 b8Q N4f6 Qb7 e5+ Kc4 Nh7 Qh6 Bc3 Kc5 Ra3 Qg1 Rb3 Rc6 Ka4 Rc8 Bb4+ Kb6 Ka3 Rc5 Rc3 Qg2 Qgh2 Qgg6 Q2g3 Rd5 Rc7 Rc5 Rac8 Ka7 Ba5 Rg1 d1N Re1 Nf2 Rd1 Ne4 Rd2 Nc3 Qg4 Na2 Qgg6 Ngf6 g8Q Rb8 Q8g7 Rf8 Nh8 Ng8 Qg4 Rbc8 Q7g6 Ra8+
1nN3B1/1RR1Qrp1/1r1pKp2/1RN3k1/2q1nq2/3PB1b1/2n4q/3BqQQR w - - 0 1 legal: proof: b4 e5 c4 h5 a4 b5 cxb5 d6 f4 exf4 g4 hxg4 b6 Bd7 a5 Bc6 b5 Ke7 a6 Bb7 axb7 Ke8 Kf2 Ke7 e4 Kf6 h4 a5 d3 c5 e5+ Kf5 h5 c4 h6 f6 h7 g3+ Kf3 c3 e6 c2 e7 a4 e8B a3 Be2 g2 Be3 c1Q Nd2 a2 Nb3 Ra4 Nc5 Qc7 Bf7 Ra6 Qf1 Nd7 b8R Qd1 b7 Qe1 b6 Be7 Nh3 g1Q Rc1 a1N Bd1 Nh6 Bg8 Qh2 Rc3 Kg6 Ke4 f3 Kd5 f2 Nf4+ Kg5 Ke6 Nc2 Rc4 Ng4 Nd5+ Kh4 Qg1 Bd8 Ne7 f1Q Nc8 Qf4 Ne4 Qg5 Bf7 Rf8 Bg8 Rf7 h8Q+ Qh6 Qh7 Qg3 Qf5 Nf2 Qf3 Qc5 Qfg2 Qc7 Q2f1 Qhf4 Rc5 Qc6 Rb5 Qc3 Nc5 Kg5 Ra8 Bc7 b8Q Ne4 b7 Ba5 Ra7 Rb6 Qc7 Qd4 b8R Be1 Qd8 Qa4 Qe7 Qb4 Rbb7 Nb8 Rc7 Qc3 Bg4 Qgf2 Rab7 Qfd2 Qh3 Bg3 Qhf1 Qe1 Bd1 Qc4+
rBq4N/2pB1rr1/b1q4N/2pkNQ1K/1B3B1Q/p3R3/2P1nqRQ/n2q4 w - - 0 1 illegal: No proof kernel
1b2QN1q/2R1p3/3p2QQ/R2qqpn1/B1n1B2K/q1R2NB1/B2P2k1/1br2n2 w - - 0 1 illegal: No proof kernel
q3R2B/1p3N1b/Q1pRp3/3Q2nB/1b2NnKR/1P1b1RQ1/4kbN1/3rq1n1 w - - 0 1 illegal: No proof kernel
2Qb2q1/2pQ2qp/1p1bB1r1/q1n1RBB1/b2K2Nb/Q2N1kNQ/1R4rP/8 w - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 a5 f4 d5 cxd5 Qd6 b4 axb4 g5 Nd7 f5 Ndf6 gxf6 Qd8 Ke2 Kf7 Ke3 e5 a4 g5 d4 g4 a5 b3 d6 b2 d7 b6 d5 g3 d6 g2 a6 Bg7 a7 Ne7 Qd3 Rf8 Ne2 Ng6 Ra5 Nf4 Nbc3 b1Q Ng3 Qb4 Nce2 Ne6 Nf4 Nc5 Bd2 Qe7 d8Q Rg8 d7 Bf8 Rb5 Qa4 Rb2 Qa5 Be2 Qe8 Re1 Rg6 Bg4 Bd6 Qf1 Bb7 Qc8 Qg8 d8Q Bc6 Nd3 Ba4 Bc1 Rb8 a8B Qg7 Bc6 Qg8 Bd7 g1Q+ Nf2 Ra8 Qh3 Qg2 Nd3 Qg1+ Ke2 e3 Kf3 e2 Bg5 Qg2+ Ke3 e4 Kd4 e3 Be8+ Kf8 f7 Kg7 f8N Ra7 Bf7 Ra6 Bh4 Kh6 f6 Ra7 Bfe6 Qg7 Rh1 e1B Qdd7 e2 Bgf5 Bd2 Rg1 Bg5 Re1 Qg8 f7 Bd8 Qe7 Ra8 Nd7 Ra7 Nf6 Ra8 Reb1 e1B f8Q+ Qg7 Re2 Rb8 Re5 Qa2 Bd7 Qg8 Bde6 Ra8 Qed7 Ra7 Ne2 Ra6 Ng4+ Kh5 Bg5+ Bh4 Qfe7 Bd1 Qf7 Qa4+ Bc4 Ra7 Ngf2 Qb5 Rb4 Ra1 Rb2 Qa5 Qa4 Rb1 Qa3 Ba4 Qfd7 Rg1 Bce6 Rg2 Be7 Rf6 Ng3+ Kg5 Nc1 Kf4 Ncd3+ Kf3 Ng4 Rh6 Bg5 Rg6
r3rR2/qbp1Np2/2PK4/1R1n1N1n/4rQ2/R1QB3r/2QB3p/r2RN1rk w - - 0 1 illegal: Other
3r1Q2/1bNQ4/N2b1B1b/1np1K2n/2Pp1Br1/rRR2Rp1/B2R2n1/k2bQ3 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 e5 axb5 exd4 Nc3 fxg4 Nb1 g3 Ra3 g4 Ra1 Qg5 hxg5 Kf7 Ra2 Ke7 Ra1 Ke8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 b4+ Kc4 f4 d5+ Ke5 c5 e4+ d3 f5 a5 b6 h5 f6 g2 b5 a4 b7 d4 f7 a3 g6 a2 g7 h4 b6 h3 Ne2 g1B Bg5 h2 Na3+ Kb4 Nc1 Kc3 Bf6 Kb2 Qe1 g3 Nb5 d2 Bc4 d1R Nc7 Be7 f8R Na6 b8R Bh3 b7 Be3 c3 Bg4 Nd3+ Kc2 Nb4+ Kb2 Be6 Bh6 Rc1 a1N Ba2 Nc2 c4 Ne3 Rc3 Ra1 Rg1 h1B Rg2+ Be2 Rf2 Ng2 Rff3 Bc1 Rfd3 Bd1 Rd2+ Bc2 Rf7 Rh4 Rff8 Rg4 Rf7 Nh6 g8Q Nf5 Qf8 Ng7 Re8 Nh4 b8B Nh5 Rd8 Bg2 Rd6 Bf3 Rb6 Ng2 Nb5 Nh4 Ke6 Rf4 e5 Bb7 Rh2 Re4 Bb1 Rg4 Bh8 Bd8 Rff3 Bf4 Rd2 Bfg5 Bf6 Ra3 Ba2 Ng2 Kd6 Bc8 e6 Nc7 e7 Bh6 e8Q Bb7 Qd7 Be7+ Ke5 Ne8 Ke6 Nd6 Bc7 Rd8 Na6 Nf5 Bf4 Nd6 Bb1 Ka1 Ba2+ Bd1 Ke5 Be4 Nbc7 Bb7 Rbb2 Nb5 Rbb3 Bd6+
1n1r1Bn1/rQ3N2/RNb1b3/2pb3p/1n1bB3/B1Kp3k/2P1rQR1/R1N3B1 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 a4 exd4 axb5 Ke7 g5 Ke8 g6 Qg5 hxg5 Ke7 Bg2 Kd8 Bf1 Ke8 Kd2 Ke7 e4 Ke6 b4 f5 g7 a5 g6 d5 e5 c5 b6 h5 b5 a4 b7 f3 b6 f4 Qe1 Kf5 e6 Kg4 e7 d3 e8Q a3 Q8e4 a2 Nc3 f2 Nge2 d4 Bg2 f1B Ba3 Be6 Nc1 Ra7 Qf2 Be7 Qc6 Bg5 Be4 Bg2 Na4 Bf3 Rg1+ Kh3 Rg2 Bd5 Qd7+ Bg4 Qb5 Bge6 Qb1 Nd7 b8B f3+ Bf4 Nb8 b7 Bc6 Be3 Bh6 Qe2 f2 Nb6 f1B Qf2 Bed5 Qb5 Be2 Qa6 Bg4 Qb5 Bge6 Qb2 Ne7 g8N Bf4 Nh6 Rd8 g7 Ng8 Nf7 Bh6 Kd1 d2 Ke2 d1N Kd2 d3 Rg6 Nd7 b8B Nc3 Bd6 Nb8 Bf8 Bf4 Qb5 Bg5 Qa6 Bh6 Qb7 Bg5 Rb1 a1R Rf6 Na2 Rg6 Nh6 g8R Nb4 Kc3 Bf4 R8g7 Ng8 Bd4 Be3 Rg2 Ra2 R7g6 Rb2 Ra1 Rb1 Ne2 Re1 Nc1 Re2 Qf1 Bh6 Bg1 Be3 Qf2 Bc8 Rd6 Bce6 Nd7 Ba4 Ra6 Bac6 Nb6 Bd4+
nQ1KN3/3QQN1n/4b1rB/2R1q1Q1/b3rB1R/1R1Pp2p/2p2r1p/3B2bk w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 c5 g4 h5 f4+ Kh6 a4 b5 a5 h3 d6 h2 d7 c4 Ke6 b3 a6 c3 a7 b2 g5+ Kg7 f6+ Kg6 f7 b4 Na3 b1R Nf3 b3 Nc4 h4 f5+ Kh5 f6 Kg4 g6 Kg3 g7 b2 Be2 Kg2 Ra5 Rh6 Ng5 Rg6 Rc5 Qe8 Nd6 Na6 d3 Ra1 Qe1 Ra2 Bf4 b1B Bd1 Rb8 a8R h3 Rf1 Rb3 Rb8 Rf2 Rb7 Ra3 Rb3 Ra4 Qd2 c2 Re1 Rd4 Re4 Ba2 Qe1 Bb7 d8Q Bc6 Qd7 Ba4 Qd2 Qb8 Ne8 Kh1 Qb4 Qc7 Qb8 Rc4 Qc6 Qe5+ Kd7 e6 Kd8 Nc7 Qd7 Na8 Rd4 Bd6 f8Q Rb4 f7 Nf6 g8Q Nh7 Qfe7 Bc7+ Kc8 Bb6 f8B Ba7 Bh6 Bb6 Rd6 Re4 Rd4 Re1 Qdb7+ Rf3 Be3 Qd5 Rcb5 e5 Rb2 e4 Nf7 Re6 Qgg5 Rg6 Qbd7 Qe5 Bc1 Bc4 R2b3 Be6 Rdb4 Be3 Rc5 Bg1 Kd8 Re2 Bf4 Ref2 Bg3 e3 Rg4 Rf4 Rh4 Rb4 Bf4 Re4
2B2Bn1/1R2B1b1/2r1p1N1/3K2Qp/2P1R2p/1pQQ1r2/k3Nq1r/1bb1R1nB w - - 0 1 illegal: No possible last move, all moves rejected
k1qN2nR/B3n1N1/RQNPB3/BK3p2/BR1r4/1p2bpQ1/1b2pn1r/7b w - - 0 1 illegal: No proof kernel
1Bbb2k1/3BKNN1/1p6/r4b2/1pn2QPR/2p2n2/1qpnRBrQ/4BQN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 dxc4 Ke2 Kf7 Kf3 h5 Kf4 c5 Ke5 h4 f4 h3 a4 b6 d4 e6 g4 c3 a5 c2 f6 c4 f5 c3 g6+ Ke8 g7 Kf7 a6 h2 a7 Qd7 d5 Rh6 d6 Qc6 d7 Rh7 d8N+ Ke8 f7+ Ke7 Nd2 Qf3 f6+ Kd7 Ne4+ Qd3 Bd2 Qa6 Ng3 Qa3 Nh5 Qb2 Rb1 Be7 f8B Ke8 Nf7 Bd8 Kd6 e5 Be1 e4 Bb5+ Nc6 Qd4 e3 Qf4 e2 Rd1 Qb3 Rd2 Qb2 Be7 Bf5 Bf2 e1N Re2 Nf3 Be1 Rc8 a8Q Rh6 Qa1 Ra8 Bf2 Ra5 Qf1 Rh8 Bc4 Nce5 Be6 Nh6 Be1 Nd2 Bf2 Rf8 g8Q Nef3 Qh7 Bc7+ Kc6 Ra6 Be1 Ra2 Bc5 Ra5 Bcf2 Rh8 Ng7+ Kf8 Bc4 Bc8 Be6 Nf5 Bd7 Ne3 Qh5 Kg8 Qhe5 Bd8 Kd6 Bc7+ Ke7 Rh5 Nd8 Nec4 f7+ Kh7 f8B Kg8 Nf7 Rh3 Kf6 Rg3 Bd6 Rg2 Ke6 Bd8 Bb8 Bc7 Ke7 Nd6 Nh3 N6c4 Rg1 h1B Qh2 Nh4 Qef4 Nhf3 Ba4 Ng5 Qhg3 Rh2 Bd7 Be4 Rh1 Ngf3 Ng1 Rg2 Rh4 Bf5 Qh2 Bd8+
r2N4/1r2KNBp/p2Q2r1/7Q/1Bkb3p/1qbRn1pQ/4b2P/BR1B2Rn w - - 0 1 illegal: No proof kernel
2NQ1N2/R2B2P1/1B2NpbQ/Br2rkn1/2R1p2r/8/1pn1N1p1/bn2q1RK w - - 0 1 illegal: No possible last move, all moves rejected
Bbn3kr/q5pp/1n1bpBP1/1B1RR3/3N1R2/3r1p1R/1NQ1Q1K1/N3r1b1 w - - 0 1 illegal: No possible last move, all moves rejected
q1k2b2/npn1BNr1/bRrK4/r6P/5Q2/2Rp2p1/p1R1BNb1/1N3QRQ w - - 0 1 illegal: No proof kernel
q1Q2n2/1p2B1bk/4R3/N1Kp1bQ1/RBB2N1p/1n4n1/3PrrRp/3bQ1B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 c5 Qd6 cxd6 gxh4 Ke2 Kf7 Ke3 Kg7 Kd4 h5 g4 e5+ Kc5 b3 a4 h3 f4 b2 a5 e4 g5 e3 f6+ Kg6 f5+ Kh7 a6 e2 a7 e1Q g6+ Kh6 g7 c6 f7 h2 f6 h4 Ne2 Ne7 g8R Bd7 Na3 b1B Nf4 Bg4 d7 Be2 d8Q Bf5 Rg2 Bg7 f8B Kh7 f7 Bh5 Nc4 Nd7+ Kb4 Bhg4 Na5 c5+ Kb5 c4 Ra4 c3 Ba3 c2 Bc5 c1N Bg1 Rb8 a8Q Nb3 Bc4 Bf3 Qe2 Qa1 Qe1 Bd1 Qc8 Rg8 Qa6 Ra8 Qf6 Ra6 Qg5 Re6 Kb4 Re2 Kb5 Bh3 Kb4 Nf5 Be7 Ng3 f8B Bf5 Kb5 Qa3 Bb4 Rf2 Bfe7 Nf8 Kb6 Ne6 Kb5 Re8 Kb6 Nf8 Kb5 Nd4+ Kc5 Nb3+ Kd6 Qb2 Qe2 Kh8 Nc6 Kh7 Ra5 Bg6 Bf6 Rf1 Bf2 Re4 Be7 Nd4 Kc5 Qc2 Be3 Rf3 Re1 Qa2 Bg1 Bf5 Qf1 Qa3 Ree2 Rf2 Qe1 Qb2 Ra1 Qa3 Ra2 Qa6 Ra4 Qa8 Na5 Nb3+ Kb6 Rd4 Re6 Re4 Kb5 Ree2 Kb6 Nd4 Kc5 Nb3+
1B2RQ2/1pQr2P1/B3p3/b1Knp1q1/1bn2QB1/2k4N/R1n1r1Qp/N1N4b w - - 0 1 illegal: No possible last move, all moves rejected
3Rn2N/Pq1K4/rB3NQb/2R1B3/1Np1p2r/1B1bpQr1/4Q1pb/2n3Bk w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 h4 g5 d4+ e3 a4 e5+ d6 b5 h5 g3 d5 g4 h6 b4 h7 g2 a6 c6 a5 b3 a7 b2 a6 g3 Bc4 Be6 Na3 b1R Nf3 Bc8 Bb3 Bd7 Rh5 Bg7 Bb2 Bc8 d7 Qe8 Kd6 c5 d8Q Ke4 Qe2 Bf5 Nc2 Re1 Nb4 Bg4 Nd2+ Kf4 Rd1 Nd7 Qf6+ Bf5 Ne4 Qd8 Qg6 Qc8 Nf6 Bd3 Ke6 Qb8 d6 Bh6 f3 Qb7 Bc3 Rd8 a8Q Rg1 a7 Rc8 Rg5 Rc6 Rh5 Ra6 Rg5 Nb6 d7 c4 d8B Na4+ Bb6 Nb2 Kd6 Qb8+ Kd7 e4 Rc5 Ra2 Qd5 Ra6 Qdf7 Qa8 Be1 Qb8 Bf2 Qb7+ Ke6 Bc2 Rdd5 Nd3 Rd8 Nc1 Qf8 Bd3 Qff7 Rh1 Bg1 Rh3 Kd6 Ne7 Qf8 Nd5 Ke6 Nc7+ Kd7 Rg8 h8N Rh5 Bh2 g1B Qff7 Bf2 Bg1 g2 Qf8 Bh4 Qff7 B4g5 Qf8 Kg3 f4 Rh4 f5 Ra2 Nh5+ Kh3 f6 Ra6 f7 Bf4 Nf6 Bh2 Qd6 Bg7 f8B Bh6 Qf4 Rg7+ Be7 Rg8 Bd6 Ne8+ Bdc7 Rg7+ Qf7 Rg6 Qff3+ Rg3 Qg6 Qd5+ Ke7 Qb7 Bf2 Bg1 Ke6 Kh2 Kd7 Qa8 Bb8 Kh1 Be5 Bh2 Bg1 Qb7+
5RRn/r3B3/2R1Q1rB/1N3nbB/p1pq4/KNPBb1pp/Nn2Q2q/7k w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 h3 fxg4 Ra6 g3 Ra1 g2 Na3 g5 Nb1 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd4 Rh3 Qd7 Rh1 Qd8 b4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 e5 Kb3 a5 f4 c5 c3 h5 f5 e3 b6 Ke4 d5 h4 f6 e2 d6 e1Q b7 c4+ Ka3 Nd7 b8N Bh6 f7 Qf2 f8R Qd4 g5 Qf6 g6 Bf4 g7 Qh6 b5 Ndf6 d7 Ng4 d8B Qg6 b6 Rh6 b7 Ra7 Qe2+ Ne3 Nd7 Qh5 b8Q Ne7 g8B Rg6 Qc8 Bg5 Bf7 a4 Rg8 Kf4 Nc5 e4 Qe6 Qh7 Ra2 h3 Rd2 N3f5 Nb3 e3 Be8 Qh5 Rd1 Qf3 Rh2 Qf2 Bf7 Nc8 Be7 Ncd6 Be8 Nf7 Rd2 Qg7 Rd6 Nh8 Rc6 Qd4 Bd2 Rh6 Bh5 Rg6 Nf3 g1B Ne1 Qg2 Nc2 Qh1 Rg2 Qh2 Nb4 Bf2 Na2 Bg1 Qd1 Bf2 Bc1 Bg1 Rd2 e2 Rf8 e1N Qde2 Be3 Rd1 Qe5 Rdd8 Nd3 Rg8 Nb2 Rdf8 Qg2 Nd4 Qf2 Nd2 Qh2 Nb5 Qd4 Nb3 Qd1 Qc2 Qg4 Bd3 Kf3 Qd1+ Kg2 Qe2+ Kh1 Bd2 Qd4 Bc1 Bf2 Bd2 Bf6 Bf4 Be3 Bh6 Bfg5
q5Qr/4B1Q1/4pbNR/3k3b/p1RN1B1R/2qB1KnR/1npP3p/q4Qr1 w - - 0 1 illegal: No possible last move
2NR1bk1/2K2RbR/1Qp1B3/1q2prP1/1q2p1Q1/B2b2pr/2Q1n2N/1n2B2Q w - - 0 1 illegal: No proof kernel
NR2r2N/1NN2QrQ/1pR2b1K/1P3Q2/p1n4q/1q1b1B2/1p1n2p1/3qR1Bk w - - 0 1 illegal: No proof kernel
Q1q3q1/2R3bp/2Q3rk/1B3QrB/1p1NK1R1/1nN2p1B/2p2P1B/b1b1R1n1 w - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 dxc4 e4 Bf5 b4 axb4 d5 Be6 d6 Bd5 exd5 Ra7 Be2 Ra5 Bf1 Ra8 Kd2 c5 Ke3 e5 g4 f5 a4 Kf7 a5 Kg6 d7 b5 a6 b3 a7 e4 d6 b2 Ra6 c3 Rc6 b4 Qa4 c2 Bh3 c4 Nf3 c3 Rc7 Bg7 Nd4 Nh6 Re1 Rg8 Qc6 Qc8 d8Q Nf7 Qdd7 Na6 Bd2 Rb8 a8B c1B Bb7 c2 Nc3 Nc5 Ba6 b1Q Bb5 Qa2 Qe6+ Bf6 d7 Ne5 d8Q Rb6 Kf4 e3 Qed5 Qe6 Qda8 e2 Ke3 Nb3 Qf3 f4+ Ke4 Ra6 Qd3 f3 Bf4 Qc8 Bg3 Nf7 Bh2 Kg7 g6 Kh6 g7 Ra5 Kd5 Ng5 Qf5 Ne6 Ke4 Nf4 Rh1 e1B g5+ Kh5 g6+ Kh6 Rg1 Ne2 Rh1 Bed2 Rf1 Ng1 Re1 Rd8 g8R Rd6 g7 Bb2 Rd8 Ba1 g8B Bc1 Bf7 Bg7 Bh5 Rf6 Rg8 Rg6 Ba4 Rd5 Bb5 Rc5 Qf4+ Rg5 Qf5 Be5 Rgg7 Bf6 Rg8 Bg7 Rf8 Bf4 Qfc5 Bc1 Rf4 Na5 Qf5 Qag8 Rg4 Nb3
2Q2nB1/bn1N1b1p/1pKN3r/1P1rq3/p1NBr1Bp/3kq3/Q2BR3/Q5R1 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 Ke2 Kf7 Kd3 Kf6 Ke4 e5 b4 c5 f4 a5 g4 a4 d4 c4 d6 c3 Kd5 e4 b5 c2 d7 b6 g5+ Ke7 f6+ Kf7 f5 e3 Na3 e2 Nh3 e1Q Kc6 Bh6 g6+ Kf8 d5 Qee7 g7+ Kf7 d6 Be3 Be2 Qe5 Bd2 c1R+ Nc4 Qde8 Rg1 Nc3 Bg4 Ne4 Nf2 Bf4 Ra2 Nc5 Ne4 Nb7 Rb2 Q8e7 d8Q Be6 d7 Rb8 Qc7 Rd8 Qc8 Qa3 Qf1 Qe3 Ra2 Rc3 Qa1 Rd3 Rc2 Rd5 Qa2 Re8 d8Q Rf8 Qd6 Rd8 Qda3 R8d6+ Kc7 Ne7 Qa1 Ng8 Q3a2 Ne7 Rb2 Re8 g8B+ Kf8 f7 Kg7 f8N Ng6 Nd7 Nf8 f6+ Kg6 Rc2 Bf7 Rb2 Rde6+ Ned6 Bh2 Kc6 Kg5 Bh3+ Kf4 Bf5 Kf3 Bh3 Ke2 Bg4+ Kd3 Rc2 Bh5 f7 Rh6 Rb2 Qh8 Rc2 Re4 Rb2 Qe5 Rc2 Ne6 f8B Bf7 Bg7 Nf8 Be1 Bf4 Re2 Bg5 Bh8 Bd8 Bb4 Bc7 Bd2 Bb8 Bg7 Ba7 Bh8 Q5f4 Bd4 Qe5
1Q2N2K/Q5np/pqq1P1bB/1p1n1Npq/3rR3/7B/3b1RQR/kB1r1B2 w - - 0 1 illegal: No proof kernel
1B1nK3/N1N2p2/1Q3Qbq/R1brQ3/p2NB1kp/1r1pq2R/1P1B1n2/1n4B1 w - - 0 1 illegal: No proof kernel
3N3q/B1kbpB2/3n1r1B/1nP1rp2/1RR1Q1Qb/1RK5/1pn1pqQB/4N3 w - - 0 1 illegal: No proof kernel
5R1n/1n1pB1Qr/1Q1RB1N1/1bp1p1N1/b1rqpbq1/8/PN4NQ/2K2kB1 w - - 0 1 illegal: No possible last move
N1RbQ1K1/b2p1p2/N1qnQRB1/2QNn3/2RPqr2/1qr5/3Bp1pR/1k6 w - - 0 1 illegal: No proof kernel
3b2R1/1np3qq/bQ1N2r1/3P1BN1/KQ3p1R/pqpQ1rN1/2RB3R/3k1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Kd7 Kd2 Kd6 Kc2 Kd5 b4 Ke4 h4 a5 d5 f5 b6 g5 b7 f3 h6 f4 h7 a4 b5 c3 b6 a3 Kb3 f2 h5 g4 h6 g3 Rh4 g2 Bd2 Bf5 Nf3 g1Q Bh3 f1Q Ng5+ Kd4 e4 Kd3 e5 Bd6 e6 Nf6 e7 Qd7 e8N Be7 Nd6 Ra6 Ra2 Ne4 Rc2 Nc6 b8Q Bd8 b7 Ng3 Bg4 Be4 Bf5 Na5+ Kb4 Re8 h8R Qh7 Rg8 Qd4+ Kb5 Qdg7 Ka4 Qf3 Qa7 Nf1 b8Q Qh1 Qb4 Nb7+ Kb3 Rc6 Ka4 Re5 Qab6 Qg1 Nc8 Rg6 Nd6 Qe3 Qf3 Ree6 Qg3 Ke2 Qh3 Qc5 Qd3+ Kd1 Rh2 Qc4 Rh4 Qhh8 h7 Bf3 Rh2 Be2 Rh4 Re3 Rh2 Qe5 Rh4 Qhg7 h8R Rf3 Rh2 Qee4 R8h4 Qee7 Be3+ Ke1 Nd2 Qh7 N2e4 Qeg7 Bd2+ Kd1 Ng3 Qa2 Qde4 Ba6 Qd3 Qb3+
2nN1k1q/bpNQ4/2P1b1rp/1QNQn1R1/4p1r1/K1R3qp/4b1BB/2Q3R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 Kd2 e5 a4 d5 g4 h6 f4 e4 c4 h3 Kc2 b3+ Kb2 d4 c6 d3 f6 d2 f5 Rh7 c7 Qd7 a5 Ra7 g5 Ne7 c5 Qc6 g6 Na6 f7+ Kd7 f6 Rh8 g7 Qd6 g8Q Qd4+ Ka3 b2 c6+ Kd6 Nf3 Nf5 Ne5 Qc4 Nc3 b1B Bg2 Ba2 Rg1 Qf1 Na4 Ne7 Nc5 Nb4 a6 Bg4 c8Q Bg7 f8Q Nd3 f7 Ra8 a7 Qf2 Qc2 d1Q Bf4 Bd5 Qc1 Be2 Bh2 Qg3 Qf5 Ba2 Q8c8 Be6 f8R Qc2 Rb1 Qc3+ Rb3 Rh7 Qe8 Nc8 Qfg5 Bh8 Rf5 Rg7 Qef7 Rb8 a8N Rg6 Nc7 Bf6 Qfg7 Qd4 Nf7+ Ke7 Q7h7 Ne5 Rc3 Qd8 Qh5 Bg5 Qhg7 Be3 Rg5 Qf8 Q7h7 Qg7 Nd8 Bf2 N5a6 Ba7 Nc5 Ra8 Nf7 Qh8 Nd8+ Nf7 Qhg7 Rb8 Qd4 Ne5 Qd5 Ra8 Qh7+ Kf8 Qhd7 Ne7 Nf7 Re8 Nd8 Nc8 Qg4 Re7 Qh4 Reg7 Qh5 Bd3 Qe2 Rg8 Qeb2 Be2 Qb5 R8g7 Rh5 Rg4 Rg5 Rg6
Qqr5/np1r2Rb/pN4RN/q7/P2kB2b/Qr1np3/p1RQ4/R1N3KB w - - 0 1 illegal: No proof kernel
nnbq4/pN2Q1B1/N3P1R1/1B2N2p/1R1np1r1/4kpN1/BQ1R3r/b4K1q w - - 0 1 illegal: No possible last move
3K2R1/p1bP2R1/1NRQp3/pbn1r2N/r4BB1/QNn5/q1pq4/3bkBN1 w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Bb7 a5 bxa5 Qf3 Ba6 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 b4 h5 f4 c5 g4 c4 f6 c3 f7 h3 d6 c2 d7 h4 f5 h2 f6 h3 b5 Na6 b6 Nc5 b7 Qb6 b8N Nb7 d8N Qb3 Ne6+ Ke4 d4 Qa4 d5 Nd8 d6 Nb7 Nd7 Qc4 Nb6 Qb3 d7 Nc5 Bf4 Rh4 Qd6 Ba6 Ng7 Re8 Nh5 Bb5 Ra3 Qe3 Rc3 Qd2 Rg3 Bg7 f8Q Bh8 f7 Be5 Kg6 Nf6 g5 Nd5 Rc3 Kd4 Kf5 Rg4 g6 Rh4 g7 Rg4 Qh6 Bb8 g8B Rh4 Rg3 Nc3 Rg7 Rg4 Qe6 Rh4 Qb3 Rg4 Qa3 Rh4 Be5+ Ke3 Bf4+ Kf2 Kg6 Ke1 Bh7 Qd5 Nd2 Qa2 Nb3 Rg4+ Bg5 Ra4 Bf4 e6 Kf6 Rc8 Ke7 Rc6 Be4 Rd6 Rg8 Rd5 Bf3 Re5 Bg4 Kf2 Ne2 Ke1 Rg1 h1B Kd8 h2 Qd6 Bf3 f8R h1Q Rg2 Qh3 Ng1 Bd1 Rg3 Qg2 Rf7 Qh2 Rfg7 Qe2 Rd3 Qh2 Rd4 Qd2 Rc4 Nd3 Rc7 Nc5 Rc6 Bc7+
R1B1nBnk/1r1b2N1/4r3/1P1pb1NB/3RNpK1/1p4qQ/2nnp1R1/3Q2B1 w - - 0 1 illegal: No proof kernel
3N4/1n1B2R1/n1Np1Kbp/B1rqP1b1/kB1Q1b1R/pr3p1Q/R7/1Q2bR2 w - - 0 1 illegal: No possible last move
1N3K2/n4Rr1/2p1Q3/1R2pPBn/3n1BBB/p1R1pb1q/1r2kNnQ/N5b1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kf4 a5 g4 h5 d4 c6 b4 h3 d6 e6 g5+ Kg6 Ke5 a4 f4 h2 f5+ Kg7 g6 a3 d5 h4 b6 h3 d7 Na6 b5 Qh4 d8B Nf6 d6 Rh7 b7 Rb8 b6 Nd5 d7 Bc5 Qc2 Ne3 Bg5 Nc7 Nd2 Nb5 Be2 Na7 Bg4 Bd4+ Kd6 e5 Ke7 Qg3 Bf6+ Kh6+ g7 Qh4 d8B Be6 Nb3 Bd5 Kf8 Qh5 g8Q Re7 Bg7+ Kg5 Bf6+ Kf4 Rb1 Qh8 Na1 Rg7 Qb2 Kg3 Bd2 Kf2 Qc2 Qh4 Qe6 Qg3 Be7 Qf3 Bh4+ Qg3 Qd1 Ng2 Bh6 Be3 Bf4 Bd4 Nf3 Be3 Qg1+ Ke2 Ne1+ Qf3 Nd3 Bf2 Bh6 e3 Bf4 Be4 Qc1 Bd5 Rd1 h1N Rb3 h2 Rc3 Ng3 Qb1 Nc8 Bdg5 Nh5 Qc1 h1N Qb1 N1g3 Qc1 Ne4 Qb1 Bg3 Nf2 Nc5 Rdd3 Nb3 Qg1 Be4 Rd7 Bh2 Rf7 Nd4 Qh1 Bg1 Qh2 Ra8 b8R Na7 b7 Bd5 Bh3 Qg3 Bg4+ Bf3 Re8 Rc8 Rd8 Rc7 b8N Rb7 Rd5 Rb2 Rb5 Qh3
q1Q3Q1/4k2B/np2Np2/R1pRPR2/5b1n/2Np4/nB1Rr3/n1K1QrBb w - - 0 1 illegal: No proof kernel
1nB5/2kBN2R/p5R1/qpn2Rb1/1Pb5/pprN1QKr/1Q1r1rQ1/1N1N4 w - - 0 1 illegal: Other
b1N4B/Nrn3Qp/1RR1Bp2/1b3P2/k1Npr2r/1r4pB/1n1Q1q1Q/3K3Q w - - 0 1 illegal: No proof kernel
1q2b1Nk/N2Pb2n/p5B1/nQ2rR1p/7N/2Bp1K2/2p2rRR/Nr2rQ1Q w - - 0 1 illegal: No proof kernel
q6n/3p1pNb/3krnQ1/P2b3Q/Bp1K4/3b1N2/1r2QRQp/R1BR2bB w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 Kd3 h5 g4 b5 e4 h4 a4 h3 c4 h2 e6 b3 a5 b2 g6 b4 g7 Qc7 g5 Qb6 c5 Nh6 g8Q Qa7 e5 Rh7 g6 Na6 c6 Rh8 g7 Rh7 c7 Qb8 Na3 b1B+ Nc2 Bb7 c8B Bd5 Nf3 Ng4 Bb7 Rh6 Bg2 Rf6 Bc6 Nc7 Ba4 Ne8 Qe2 Qc8 Rd1 Ra6 Bh1 Qa8 Qh7 Rf5 g8Q Nef6 Qh5 Bh6 Qg7 Be3 Qg2 Bg1 Qgg6 Rd6 Nd2 Rf2 Nf3 Bc6 Kc4 d3 Ne3 Bd5+ Kd4 d2 Nf5+ Ke8 Qhg5 Bd3 Ng7+ Ke7 Q5h5 Rc6 Re1 d1B Re2 Kd8 e7+ Kc7 e8Q B1c2 e6 Ne5 e7 Re6 Re1 Kd6 Rd1 Nc4 Qg8 Ne5 e8R Bb1 Qe4 Bbc2 Qe2 Ng6 Rc8 Bb1 Rc2 Nh8 Rca2 B3e4 Qgh7 Bbd3 Q7h6 Bh7 Q6g6 Rf1+ Qe3 Re1 Rf2 Re2 Qee4 Rd2 Qe2 Rb2
4r1R1/kP1p3R/1nQ3qp/rn2p1B1/2Q1r3/1bbB1p2/1R1Q1NKB/N3r1R1 w - - 0 1 illegal: No possible last move, all moves rejected
5n2/P1RpNQ2/4QpR1/5r1B/4N1K1/n2Nr1rB/bbQ1pBp1/B4qrk w - - 0 1 illegal: No proof kernel
QNk1N1N1/P1Bprp1n/2Q2pn1/2nn2pB/2Q1N1q1/1b2R1bK/6rR/4B3 w - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 c5 dxc5 Qc7 b4 axb4 f4 Qa5 f5 Qd8 f6 exf6 Kf2 b5 Kg3 g5 a4 b3 c4 b4 h4 b2 e4 b3 h6 Bd6+ e5 Ne7 a5 Ng8 a6 Qa5 c6 Kd8 h7 Qa4 a7 Qa2 c7+ Ke8 c5 Bf8 h5 Nc6 h6 Na5 c6 Bb7 c8N Kd8 c7+ Ke8 e6 Be4 Bd2 Bc6 Qc1 Qa4 Nf3 Bc5 Kh3 Bb7 Qc4 Ne7 Be2 Bd5 Nc3 b1N Nd4 b2 Be1 Nd2 Bh5 b1N Ra3 Nac6 Ne4 Nc3 Rh2 Nd8 Nc6 Ng6 N8e7 Bd6 c8Q Bg3 Ng8 Nb3 Nb8 Nc5 Qc6 Qd1 Q4a4 Ba2 Qc4 Nd5 Re3 Bb3 Ne7 Rg8 h8B Qf3 Bg7 Rh8 Ng8 Qg4+ Kg2 Rh7 Bf8 Rh8 Na6 Rb8 h7 Rb5 Bd6 Ra5 Nb8 Ra2+ Kf1 Re2 Bc7 Rg2 Nh6 Rg8 h8Q Ke7 Q4a4 Re8 Ng8+ Kf8 Qd4 Re7 Qc4 Ke8 Qh7 Nf8 Qf5 Nh7 Qf3 Rc2 Qa8 Nc6 Qg2 Ne5 Qh1 Rc1 Kg2 Ng6 Qc6 Qf3+ Kh3 Rc2 Be5 Kd8 Bc7+ Kc8 Qa8 Re8 e7 Rg2 Qc6 Rf8 e8N Qd1 Ng7 Re8 Qa8 Re7 Ne8 Rg1 Qg2 Qd4 Qgc2 Rg2 Q2c3 Na6 Qcc6 Nc5 Qb4 Qd1 Qc4 Qg4+
2r5/1n1q3p/k1p1R2R/1b1RB2Q/2BQ2pq/2bN1QPb/1K2p1rN/1QB1r3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 h3 fxe4 Qc2 g5 Qa4+ Nd7 Qd1 Ne5 h4 g4 Bd3 Nf7 Bf1 Ng5 hxg5 Bh6 Bb2 Bg7 Bc1 Bf8 f4 Kd7 a4 b5 d4 e5 Kd2 b3 Kc3 b4+ Kb2 e3 a5 e4 g6 e2 a6 e1R g7 e3 g3 Nh6 g8Q Qe8 f5 Qe6 f6 Bd6 f7 Qe8 f8B Ra7 Nc3 Qh5 Bc4 Qh4 Na2 Nf5 Qg5 Bb7 Qh5 Kc8 Bg7 Be5 d6 Bg2 Nf3 Bh3 d7+ Kb8 Qd3 Rc8 d8Q Nd6 Qb1 Nb7 Nh2 Ra8 Qf6 Ka7 Qf3 Kb6 a7 c6 Bf6 Rab8 a8R e2 Ra5 Rf8 Rd5 Rbc8 Bh8 Bg7 Re5 Rf6 d5 Rf7 Qf1 Rf2 d6 Rg2 d7 Ka7 d8Q Bf6 Bg8 Ka6 Qf3 Bg7 Qd4 Bf6 Re6 Be5 Qc2 Bg7 Kb1 b2 Qcf5 Bf6 Kc2 b1B+ Kb2 b3 Qfg6 Be7 Be5 Bf6 Qgf5 Bd3 Nb4+ Kb5 Rb1 Ka5 Bf7 Bb5 Nd3 Ka6 Ra1+ Na5 Ra4 Bh8 Rc4 Nb7 Rc5 Bg7 Rd5 Bh8 Kc3 b2 Q5e4 b1Q Qeg6 Qa1+ Kc2 Qa4+ Kb2 Qc4 Rdd6 Bf6 Qdf2 Bg5 Nf1 Ba4 Qd4 Rb8 Re8 Qd5 Qe6 Rc8 Qhh6 Qh5 Rh2 Qe4 Qa2 Bd2 Qb1 Qef5 Bc4+ Bb5 Rd5 Qd7 Re6 Bc3+ Kc2 Rf2 Qg6 Bg2 Rh4 Qh6 Nh2 Qg5 Rh6 Qh4 Qh5 Bh3 Kb3 Rg2 Kc2 Bb4 Kb2 Bc3+
2q4n/1n2Q1pR/rpR1b2q/3k1p1r/1Rn2P1B/pBK1QN1N/2N1q2Q/2Q5 w - - 0 1 illegal: No extended proof kernel
5QR1/r7/Bnq1r2p/p3b1r1/P1q1qR2/R4pp1/QB3BnQ/BK1kN1N1 w - - 0 1 illegal: No proof kernel
2R2NQB/5rNn/pN2Rp2/1q3r1Q/bk2qP2/p1p1nq2/4B1r1/2N1QB1K w - - 0 1 legal: proof: h4 d5 a4 b5 c4 bxa4 d4 g5 e4 gxh4 c5 Bh6 exd5 Bg5 Qc2 Bf4 Qd1 Bd6 cxd6 Bb7 Qb3 Ba6 Qd1 Bc8 b4 Kd7 g4 c5 f4 h5 Kf2 e5 Kg2 a6 g5 c4 g6 a3 b5 e4 b6 e3 g7 e2 b7 e1Q Ne2 Qc7 Bb2 Qc6 Nbc3 Nh6 g8B Qa4 Nc1 Qb3 Na4 h3+ Kg1 h4 Qh5 Qe4 Nb6+ Kd8 d7 Kc7 d8N Kd6 Ne6 Ra7 Nf8 Nd7 Rh2 Nf5 Rc2 Nf6 b8Q+ Rc7 Qa8 Bd7 Qe8 Ba4 Kh2 Qef3 Qe1 Ne3 Bh7 Qb5 Bhd3 Rb7 Bde2 Rg8 Rb1 Rg2+ Kh1 h2 Ra1 Kc7 d6+ Kc6 d7 Nh7 d5+ Kc5 Bh8 f6 d8Q Rf7 Rc3 Qe4 d6+ Kb4 d7 Qf3 Qa8 Qe4 d8N Qf3 Rd3+ c3 Nde6 Qfd5 Ra2 Re7 Rad2 Rg6+ Qf3 Re8 Qc6 Qe4 Qd5 Ra8 Ng7 Rd8 Qg8 Rd7 Rd6 Rf7 Re6 Rg5 Rd7 Rf5 Ra7 Nc2 Kg2 h1R Nbd7 Rg1+ Kh2 h3 Ra8 Ne3 Rc8 Rg6 Qg4 Rgg5 Nb6 Rg6 Kg1 h2+ Kf2 h1Q Qh5 Ng5 Kg3 Qhf3+ Kh2 Nh7 Qg5 Bc2 Qh5 Rg2+ Kh1 Ba4
5b2/1p1QN1R1/Br6/1Q1K1nBN/qprp2n1/r1nB2p1/kBNP4/3Q2qR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 exf4 Nh3 d5 Ng1 d4 Nf3 Be6 Ng1 Bd5 cxd5 Rh7 Qc2 Rh6 Qd1 Rh8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 h4 Kc4 a4 c5 d6 g5 d7 f3 h6 g4 h5 f2 a5 f6 a6 Qa5 d8B Qa4 a7 Qb5 h7 Nc6 h6 Bg7 Bb2 Nce7 Nh3 Qd7 Nf4 Qa4 Nh5 Bf8 Ra3 Rc8 a8Q Nf5 Qa5 g3 Re3 Nge7 Qb6 Rg8 h8N Rc6 h7 Nd5 Ng6 Rh8 Qa5 Rb6 Ne7 Rg8 h8Q Nc3+ Kf3 Rg6 Qh7 Ra6 Re4 Rb6 Rg4 Rg5 Qc1 Kb3 e4 c4 e5 Ka2 Bd3 f1N e6 N1e3 Na3 Rg6 Rg5 Ng4 Nc2 Nfe3 Na1 Ra6 Nc6 f5 e7 f4 e8B Ne2 Ke4 c3 Qe7 c2 Qee5 f3 Qg7 f2 Qd1 Nf5 Kd5 c1R Be7 Rc4 Nc2 f1Q Qf7 Rf6 Rg7 Rh6 Bg5 Qa3 Qe6 Rf6 Ne7 Qg1 Bb5 Ra8 Qd7 Rb6 Ba4 Raa6 Qc5 Qb3 Bb5 Ra3 Ba6 Qa4 Qcb5 Nc3+
1B3K2/p1b5/b1pkN1pp/1B6/RnR4N/nq2q3/r1PqQQRn/R1QN4 w - - 0 1 legal: proof: g4 b5 e4 d5 a4 dxe4 axb5 Na6 h4 f5 h5 Rb8 h6 Rb6 Ra4 Rf6 Ra1 Rf7 Bd3 g6 Bf1 Rg7 hxg7 fxg4 Ke2 Kd7 Ke3 e5 b4 g3 f4 g2 d4 c6 b6 h6 d5 Kd6 b7 Be7 b8R Bf8 f5 Kd7 f6 Ne7 g8Q Nc5 f7 Nb3 d6 Na5 b5 Qc7 b6 Bg7 f8Q Bb7 Rh2 Ba6 b7 Bb5 Nc3 Ba6 Nf3 g1N Nh4 Nf3 Rg2 Nh2 Qf2 Qd8 Qgd5 Qg8 Q5d2 Qb3 Q1e2 Rf8 Bb2 Rf4 Qc1 Ke6 d7 Kd6 d8N Nd5+ Kd2 Bf8 Nd1 Nb4 Ne6 Be7 Rf8 Bd8 b8R Bc7 Rf5 Rg4 Rf4 Rg5 Rb5 Rh5 Rc5 e3+ Ke1 e4 Rc4 Na2 Ra4 Nc4 Bd4 Nb4 Be5+ Ke7 Rfg4 Na3 Bg3 Ra5 Bf4 Bd8 Bb8 Bc7 Qef3 e2 Kd2 Bd3 Ke3 e1Q+ Kd4 e3 Q3e2 Qd2 Rf4 Ra6 Kc5 Kd7 Rc4 Ke7 Qef3 e2 Qg4 e1Q Qge2 Bd8 Kd4 Kd7 Ke5 Bc7+ Kf6 Kd6 Kf7 Qe3 Kf8 Q1d2 Rc5 Bb5 Rc3 Ra5 Rc4 Ba6 Rc3 Qdd4 Qd3 Rg5 Ra5 Nb1 Qdd2 Rc5 Bc4 Qdd3 Qde2 Qdd2 R5a3 Ra5 Bb5 Qb2 Rc4 Qbc3 Rb3 Ra2 Ra3 Qb3 Ra4 Na3
1NN1B1Q1/n2n2n1/1Q1p4/6B1/RpQKqbR1/R2p2pb/1P4Nb/1knNr3 w - - 0 1 legal: proof: e4 c5 g4 h5 d4 hxg4 a4 cxd4 Bf4 f5 exf5 b5 Bd2 a5 Bf4 b4 Bc1 Ra6 Qd2 Rb6 Qd1 Rb5 axb5 Rh5 Nh3 Rh4 Ng1 Rh8 Kd2 Kf7 Kd3 Kf6 c4 Ke5 h4 g5 b6 a4 c5 d6 b7 g3 h5 a3 f6 a2 c6 g2 h6 g4 c7 g3 h7 Bh3 c8N Nc6 b8N Nh6 f7 Nf5 Bg5 Ng7 Qc2 Na7 Qc4 Qe8 Ne2 g1B Nf4 Bh2 Ng2 Qc6 Nc3 Qe4+ Kd2 Kf5 f4 e5 Nd1 Be7 Bd3 Re8 f8Q+ Bf6 h8Q Re6 Rc1 a1N Qd8 Nb3+ Kc2 Be7 Qhg8 Nc5 Ra1 Nd7 Qb6 Bd8 Ra4 Re8 Bh4 Bg5 Rg1 Bh6 Bg5 Rf8 Qcf7+ Nf6 Qa5 Kg4 f5 Kf3 Bf4 Qa8 Nf2 e4 Bb5 e3 Kd3 e2 Rga1 Re8 R1a3 e1N+ Kc4+ Ke2 Nd1 Qb7 Qb6 Nd3 Qfc7 Re4 Be8 Nd7 f6 Nc1 f7 Qa8 f8R d3+ Qd4 Re3 Qdb6 Kd2 Kd4 Qc6 Rf5 Kc2 Rg5 Kb1 Rg4 Re1 Bd2 Qf3 Qcc4 Qb7 Bg5 Qf3 Be7 Bf4 Bg5 Qe4#
Rn3n1q/p1p1N2N/3pQQ2/2kP1rR1/BR1R2qK/brr5/Q3p1rB/2N5 w - - 0 1 legal: proof: b4 f5 c4 g5 e4 fxe4 a4 b5 axb5 d6 h4 gxh4 c5 Qd7 c6 Ba6 b6 Bb7 cxb7 Qc8 b5 Qd8 g4 Kd7 f4 e5 Kf2 h5 d4 h3 Kg3 h2 f5 e3 f6 e2 g5 e1R g6 e4 f7 e3 g7 Nh6 g8Q Qc8 Ra5 Ke7 Qb3 Kd7 Qe6+ Kd8 Nc3 Ng4 Nge2 Ne5 Kh4 Ned7 Nd5 Rh7 Bb2 Rg7 Nc1 Rg2 Ne7 Ree2 Ra4 Rc2 Rg1 Rc3 Bc4 e2 Bb3 Rg6 Qh8 Rg2 Qhf6 Bh6 f8N Bg7 Nh7 Nf8 Rc4 Ke8 Ba4 h1R+ Qh3 Rhh2 Rb4 Rf2 Rg5 Rhg2 Qhe6 Rf5 Qa2 Kd7 Rc4 Na6 b8Q Bh8 Qb7 Nb8 Qe4 Qb7 Qee5 Qc6 b7 Qf3 Nd3 Bg7 Bc1 Bh6 Bf4 Bg7 Bh2 Bh6 Rg4 Bc1 Rg5 Ba3 b6+ Nc6 Qe3 Rc8 Bd1 Nb8 Nc1 Re8 Ng6 Ree5 Ba4+ Rb5 Rb4 Kc6 Qee6 Rf2 d5+ Kc5 Rbg4 Rbb3 Rd4 Rg2 Ne7 Bb4 Bg1 Nbd7 b8R Qe3 b7 Ba3 Ra8 Qd3 b8R Qf3 Rbb4 Nb8 Rg6 Rb2 Rg3 Rbb3 Kh3 h4 Ng5 Qd3 Kg4 h3 Kh5 h2 Kg4 Qe3 Kh5 h1Q+ Kg4 Qh7 Bh2 Qh8 Nh7 Qf2 Kh4 Qf3 Rg5 Qg4+
qRNr1Qbk/1pq5/3B2pN/6b1/rq1N3p/2p1qB2/1QK2RNP/1Q1R1n2 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 Nc6 Bf1 Nce7 Nc3 exf4 Nb1 f3 Bg2 f4 Bf1 Nf5 gxf5 Qd6 Qa4+ Qd7 Qd1 Qd8 a4 Kf7 d4 h5 Kd2 c5 e4 c4 a5 b3 d6 h4 f6 b2 e5 f2 d5 f3 e6+ Kg6 f7 Kh7 e7 g6 e8R c3+ Kc2 Ra6 d7 Qb6 d8Q Ra7 a6 Bc5 f8Q Qa5 d6 Ra8 a7 Rb8 a8N Be6 d7 Bd5 Ra2 Bd4 Qb6 Nh6 d8N Bf6 Na3 Nf5 Bg2 f1Q Nh3 f2 Nb5 Qc4 Bf4 f1Q Bd6 Qff4 Nd4 Qe3 Bf3 Ng3 Qb1 Bg8 Nf7 Qc7 Rd1 Nf1 Nh6 Bg5 Nf4 Rd8 Ng2 Qa3 Qb4 Qa7 Nb6 Qab8 Nc8 Qa8 Qf5 Kg7 Nf7 Rh5 Nh6 Kh8 Qb6 Be7 Qf8 Ra5 Qb4 Ra4 Na7 Rd7 Rb8 Rd8 Nc8 Bg5 Qc1 Qe8 Kd3 b1Q+ Qc2 Qb3 Qb1 Qaa5 Rf2 Qa8 Qb5 Qa3 Kc2 Qe3 Q5b2 Qb4
1q1nRq1R/pb3n1Q/5B1Q/4R1B1/Ppp1bKQ1/p1b4B/kN2rB1b/7N w - - 0 1 illegal: Other
1Q4KN/1pp5/1bP1Q1R1/1R1B2bk/1Q2rRb1/2np1r2/p1BN4/Qbb3Bn w - - 0 1 illegal: No proof kernel
rbr5/pn1BB1Qr/P1r3NQ/4pbRb/1R3p2/1KRN3Q/3Bk2p/1R2n3 w - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Qd6 h5 Qg6 hxg6 Nb8 a4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 h5 g7 f5 g6 e5 a5 b5 c6 e3 a6 Ke4 c7 f3 d5 h4 d6 f4 d7 b4+ Kb3 f2 d8B h3 c4 h2 c5 e2 c6 e1R Bb5 f1R Bd2 Nf6 g8Q Nh7 g7 Be7 Nf3 Re2 Ra4 Bd6 Na3 Bg4 c8R Ng5 c7 Bh5 Be7 Nd7 Nh4 Nf3 Nc4 Kd3 Ng6 Rh7 Qh8 Re3 g8R Ne1 Qg7 Ref3 Qc1 Ke2+ Qc3 R3f2 Qh3 Rg1 Bc6 Rgf1 Nb2 Nc5+ Kc4 b3 Bd7 Rg1 Nd3 b2 Rb4 Nb7 Kb3 b1B Qh4 Rf3 Qg5 Re3 Q5h6 Rg5 Rg1 Rf5 Rg5 Rf6 Rb8 Re4 c8Q Rc4 Rf8 Bc7 Rf7 Rb6 Rf6 Rc1 Rc6 Bd6 Rc3 Rc6 Nb2 Bf5 Nd3 Nd8 R8b5 Nb7 Qch8 Bhg4 Qh3 Bh5 Qh6 Rcc8 Q8g7 Rc2 Ra5 Bb8 Ra1 Ra2 Rb1 Ra5 Qh4 Rac5 Qh3 R5c6
8/Q7/bBBQ1rk1/b1p1Rp2/1pRN2P1/1r1NNq1N/3pQKpn/2R1nb2 w - - 0 1 illegal: No proof kernel
3N1b2/Kb2Rp1p/np2p1N1/3P2B1/qBn4Q/R2Q4/1rrpR1b1/2k1B1NB w - - 0 1 illegal: No proof kernel
b1nNn3/qpR2pr1/1P3k2/2QR2pK/N6b/4B1NR/Qpp1B1br/B1B5 w - - 0 1 illegal: Other
K2n1Q2/pQ6/2B1B2B/3NNppk/3rpPr1/pR3qB1/3nb1b1/3RQ1nN w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 h5 gxh5 b5 Bh6 bxa4 Bf4 Nc6 Bc1 Nb8 e3 d5 Bg2 d3 Kf1 e6 Nc3 d4 Nb1 d2 Bh3 d3 Kg2 Bc5 Bf5 Bd4 exd4 Ba6 Bg4 Bc4 Be2 Ba6 Bf1 Bc8 Kf3 a3 Ke4 f6 b4 Kf7 c4 e5 h4 g6 h6 Be6 c5 Bc4 c6 Ba2 h7 Ne7 d5 Rg8 h8Q Nc8 d6 Qe7 b5 Nd7 h5 Qe8 b6 Rf8 h6 Nb8 b7 Qd8 h7 Qe8 d7 Be6 d8B Ba2 c7 Qd7 Qe1 d1B Bh6 d2 f4 Bdb3 Nc3 d1N Bg2 Qh3 Nge2 Bc4 Rb1 Nc6 b8Q Nb6 c8B Rg8 Ng3 Be2 Nd5 Nc4 Rb3 Rg7 Bb6 Nd8 Bf2 Qg4 Qb5 Rb8 Qa6 Rb4 Rf1 Ra4 Nh1 Qh5 Bg3 Qg4 Nb6 f5+ Kd5 Nf2 Be6+ Kf6 Kc5 Nh3 Qb7 Nd2 Bc6 Ng1 Qg8 e4 h8N Qf3 Nf7 Rd4 Ne5 Bb1 Qe8 Bbd3 Qh8 g5 Qf8+ Rf7 Ng4+ Kg6 Ne5+ Kh5 Nd5 Rh7 Kd6 Rh8 Kc7 Ba6 Kb8 Bad3 Rf2 Bf1 Re2 Bg2 Ka8 Bb5 Rf2 Be2 Rf1 Qd3 Bg7 Qf3 Qf2 Rh6 Rd1 Rh7 Ng4 Kg6 Qe1 Rh4 Bh6 Kh5 Ne5 Rg4
NR2K3/pb1p1p1R/4Q1Pr/qkN1r1B1/2npbQ1p/QB6/1b1B4/n1R1Q3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 Kf3 Qf6 Ke4 f3 Kd5 f2 c4 Bc5 e4 Rh6 b4 Ke7 g4 Rg6 e5 Qb6 e6 Na6 Na3 Rf6 g6 Ke8 g5 Nh6 g7 Kd8 g8R+ Kc7 e7 Nf5 e8Q Nh6 g6 Nb8 Qe6 Nc6 Bg5 Kb7 Nh3 Bf8 c5 Be7 Bc4 f1B Nf2 Qc7 b6 Bh3 b5 Qd8 Nd3 Bf1 Bb3 Rf2 Rc1 Ne5 c6+ Kb8 b7 Kc7 b8B+ Kb6 c7+ Ka5 b6 Rb2 Nc4+ Ka6 Nc5+ Kb5 Qe1 Bd3 Rh2 Ba6 c8Q Nhg4 b7 Re2 Nb6 Nc4 Bbf4 Rb8 Na8 Qa5 Qf8 h4 Rh8 Bc2 Rh7 Bd6 Qfe7 Rh8 Qf8 Bb1 Rg2 Re4 Rb2 Re2 Bd2 Re3 Na4 Ba3 Nc5 Bc2 Rbb1 Bb2 b8Q+ Nb6+ Kd6 Re5 Ke7 Bb7 Qbe8 Nc4 Qb8 Be4 Ke8 Nge3 Qc7 Nc2 Qd6 Rf5 Qf4 Rd5 Rg7 Rh6 Rh7 Na1 Qfe7 Qc3 Q7d6 Re5 Qa6+ Kb4 Qa3+ Kb5 Qff1 Bbc6 Ba4+ Ka5 Rd1 Bc1 Rb8 Bb7 Qf4 Bb2 Bb3+ Kb5 Rc1 Qa5
2B1n3/K1ppp3/Rb1NPB1k/N1Q5/1r3nQb/1p4R1/Q2p2nR/1q3RNb w - - 0 1 illegal: No possible last move
2QrRb2/Qp2rp1p/b1R1BbpB/n4R1N/3q2PK/3R3Q/1N2p3/k1N4r w - - 0 1 illegal: No proof kernel
7b/R2BNp1k/2b2r1p/1pN2p1N/q7/B3nQp1/Q2b1rPB/RKQ3qB w - - 0 1 illegal: Other
Nk3NR1/1r4n1/R2p1p1Q/q3bPBR/4p1n1/1Q1Q1Nbq/p1b1p2Q/2KB4 w - - 0 1 illegal: No proof kernel
2r1BnNR/5Bq1/pRQ1pKRp/4Q1N1/4Ppq1/2Bp4/q4B2/rbk2nQ1 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 a4 cxd4 axb5 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 Kf2 d5 Kf3 Kd7 Kg4 Ke6 b4 f6 c4 a6 e4 f3 b6 f2 b7 d3 g7 d2 g6 d4 c5 f5+ Kg5 Ke5 c6 f4 c7 Qe8 b5 e6 b6 Qf7 Nc3 Ra7 Bb5 f1Q Bb2 d3 Rb1 Kd4 Be8 Ke3 Nf3 Ne7 g8B Bd7 c8Q Qe2 g7 Nf5 Qc6 Ra8 Qg1+ Qf2 Rh3 d1Q Nd5+ Ke2 Rg3 Ne3 Bc3 Nf1 Nf6 Qe7 Bgf7 h6+ Kg6 Rg8 Rg2 Ke3 Ng5 Qg4 Rb3 Ke2 Rb4 Kd1 Rg3 Kc1 Rb5 Rf8 g8R Qa2 Rh8 Ra7 Ng8 Ra8 Rb3 Ra7 Qc8 Ba4 Qc6 Nd7 b8Q Rc7 b7 Rc8 Rb2 Bc2 Qe5 Bb1 b8B Rc7 Rb3 Rb7 Bd6 Rb5 Bc5 Ra5 Bf2 Ra3 Rb6 Ra5 Nf6 Ra3 Rh7 Rh8 Ng8 Nf8+ Kg7 Ra5 Nf6 Qa7 Bd7 Qb2 Bg8 Qf5 Nf7 Ra1 Rg6 Qg4 Ng5 Qb7 Nd5 Qd2 Kf6 Qa2 Ne7 Qa7 Bf7 Rg8 Rh8 Qb7 Bde8 Rg7 Bg8 Rh7 Nd5 Rc7 Ne7 Rc8 Nd5 Qh7 Ne7 Qge2 Bgf7 Qg4 Ng8 Qg7+
Q1RB4/pB1p1Rp1/Kp2Q2r/2n1r3/P2Nb2q/kN2p3/n1RQNqn1/5Q2 w - - 0 1 legal: proof: c4 h5 e4 c5 g4 hxg4 b4 e6 e5 Rh4 b5 Rh3 d4 Qh4 dxc5 f6 c6 fxe5 c5 e4 b6 Bd6 Bf4 Qd8 Bc1 Bc7 bxc7 Rh8 Kd2 Ke7 Kc3 e5 Kb4 g3 Kb5 g2 h4 b6 a4 e3 f4 e4 f5 e2 f6+ Ke6 h5 e1N h6 Nf3 h7 Nh2 f7 Nh6 f8Q Bb7 c8R N2g4 c7 Nf7 c6 Qh4 Nd2 Kd5 Nb3+ Ke5 Ne2 g1Q Ra2 Qgh2 Qd2 Nfh6 Rc2 Nf2 Bg2 Nd3 Rf1 Kd5 Rf7 Na6 Bb2 Ng4 Bf6 Qf2 Bd8 Qhh4 Qe7 Re8 h8Q Nb4 Qhf8 Na2 Qf6 Re5 Qg8 Qe1 Qf1 Qef2 Bh1 Rb8 Bf3 Ba8 Ka6 Ne3 Bh1 Ng2 Qe8 e3 Qe6+ Ke4 Bf6 Qhf4 Rh8 Q4h4 Be7 Rd8 c8Q Re8 c7 Bc6 Qf6 Kd5 Qa8 Rh5 c8N Rh6 Bc5 Re4 Nd6 Ne1 Bf3 Ng2 Nf5 Qh1 Nfd4 Qhh4 Qb8 Ba8 Be7 Bc6 Rc8 Ba8 Bh5 Re5 Bd8 Bc6 Nc3+ Kc4 Qe6+ Kb4 Qa8 Ka3 Nce2 Be4 Bf3 Bf5 Bd5 Be4 Bb7 Nc5+
1K3Rqn/Qpp4B/1pB2N1p/2bQ2RN/p7/r1R1nNpk/r1PB1b2/2B5 w - - 0 1 illegal: Other
b2BNq2/1BNK2R1/2Q2pp1/R1n2p1Q/Nbp4p/k1p1Q2P/4BQ2/2nrn3 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 b5 axb5 a5 f5 Kd7 f6 Ra6 g4 Re6 g5 exf6 g6 Re7 Na3 f5 Nb1 f6 Bg2 Qe8 Bf1 Rf7 gxf7 Qd8 Kf2 Kd6 Ke3 Kc5 d4+ Kb4 b6 h5 b7 c5 h3 a4 d5 h4 d6 c3 d7 a3 Nd2 a2 Nc4 Na6 b8Q+ Qb6 d8Q Qb7 Q8d4 Qb6 Qc7 Qb8 Bd2 Ne7 Qc6 Rh7 Nd6+ Ka5 Ne8 Nc7 b3 Qb6 b4+ Ka6 b5+ Ka5 Qb3 Qb7 b6 Qa7 b7 Rh5 b8N Qa8 Na6 Nb5 Nac7 Nd6 Kd3 Ng6 e4 Bd7 e5 Rh6 e6 Nh8 e7 Nb7 Kc4 Ng6 Kd5 Ne5 Ne2 Rh7 Rg1 Nf3 Qf2 Ne1 Qd1 Kb4 Bg2 Na5 Kd6 Nd3 Be3 Be6 Qde1 Bb3 Kd7 Ka3 Qd2 Bd5 Bd4 Nb3 Qde3 Nf4 Be4 Nc1 Bd3 Rh5 Ba6 Rh6 Bb7 Rg6 Ne6 Qa7 Qc7 Ka4 Bc8 Ba8 Bb7 Nfd3 Qc6+ Kb3 Be5 Qa3 Bc7 Rg5 Bd8 c4 N2d4+ Kb4 Nc5 Qa6 Nb5 Qa3 Nbc7 Rg2 Nd6 Rh2 e8B Rh1 Rg6 Be7 f8Q Rd1 Qh8 Bf8 Rg5 Be7 Bh5 g6 Nde8 Bd6 Be2 Bf8 Rh5 Bd6 Na4 Kb3 Nb2 Bf8 Rb1 a1N Rh7 Nc2 Rg7 Nce1 Ra1 Qb4 Ra7 Bc5 Na4 Ka3 Qh5 Bf8 Kc8 Qe7 Ra5 Qf7 Rg8 Bb4 Rg7 Qf8 Kd7 Nc5+
2B1n1KR/4R2P/RNq2nkp/2bR1R2/R1Bn1b2/1br5/NQ5r/5B1n w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 h5 bxa5 b5 a4 f5 axb5 Bb7 e4 Ba6 exf5 Bc8 h4 Be6 g4 Bd7 g5 Bc8 g6 Nc6 Bb2 Nh6 Qg4 hxg4 h5 Ng8 h6 Qd6 h7 Nb8 Be5 Qd7 Bf4 Qd8 Bh6 gxh6 Ke2 e5 Kd3 c5 Ke4 c4 f4 c3 d4 g3 b6 c2 d6 c1N Kd5 e4 d7+ Ke7 a6 Kf6 g7 g2 a7 e3 b7 e2 Nh3 g1N Ra4 e1B Nc3 Nb3 Na2 Kf7 f6 Qe7 d8R Qa3 f5 Bh4 Rd6 Na6 b8Q Ne2 Nf4 Na5 Qb2 Nb8 Ra6 Ke8 f7+ Ke7 f6+ Kd8 Rg1 Bb7+ Ke6 Bg5 d5 Qc5 d6 Nac6 d7 Ng3 Nd5 Bf4 Nb6 Nh1 Rg2 Qc2 Re2 Bc5 Re5 Qg6 f8R+ Qe8+ Kd5 Bc8 f7 Nd4 Rf5 Ke7 d8R Nd7 Re5+ Kf6 Re7 Rb8 a8B Kg6 Bb7 Nb3 Ke6 Ngf6 g8B Ra8 Bf3 Bb7 Bd1 Be4 Bg4 Bc2 Rb8 Qc8 Rd8 Ne8 f8R Ndf6+ Rdd7 Qb7 Rd5 Ra7 Rbd8 Qa8 Rf5 Rd7 Bgh3 Rd2 Rfd5 Rh2 Bf5+ Kh5 Kf7 Qc6 Rc8 Bd1 Rcd8 Nd4 Bc8+ Kh4 Rf5 Bb3+ Rdd5 Kg4 Kg6 Kh4 Bge6 Rg8+ Kf7 Rg3 Rg8 Rc3 Rh8 Bg5 Kf8 Kh5 Bg8 Kg6 Bge6 Ng4 Kg8 Bf4 Rde5 Rhc2 Bec4 Rh2 Rd5 Ngf6+
N2b4/2RqrKRp/1Pb1r3/1b2Q3/3B1RBk/nR3r1N/4Rb2/n1R2N2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 c5 g4 b3 d4 c4 f4 c3 f6 Kg6 d6 c2 Kd5 e4 f7 e3 d7 e2 Ke6 e1B d5 b2 b6 Nf6 d6 Ne4 f5+ Kg7 f6+ Kg6 Qe2 Bf2 Be3 c1R Ra7 Bb7 Bd4 Be3 Nh3 Rd1 Nd2 Be7 f8Q b1B f7 Qe8 d8R Qc6 Re8 Qc8+ d7 Bf6 Qe7 Bd3 f8R Qc3 d8N Bba6 Rc7 Bf2 Rf7 Nd6 Qe5 Bb7 Be2 Ra5 Nf1 Nc6 Rff8 Ra3 Rf7 Bg7 Rf4 Qd2 Rg1 Ba8 Rg3 Bb5 Rb3 Na5 Rc1 Nf7 Bf3 Bf6 Rc7 Kg7 g6 Kh6 g7 Bac6 g8R Re1 Rg7 Nd6 Bd1 Ndc4 Kf7 Re2 g5+ Kh5 Ne6 Rg8 Rec8 Re8 g6+ Bg5 Ra7 Qd3 Nc7 Qd2 Na8 Qd3 Rf5 Kh4 Rac7 Re4 Bg4 Re1 Rb2 Nb3 Re2 Na1 Rf4 Bf6 Rg8 Qf5 g7 Rf3 Rf8 Qd7 g8R Na3 Rg7 Bb7 Rc1 B7c6 Rc7 Bg5 Rec2 Re4 Re2 Ree3 Qf6 Re6 Qe5 Rg3 Rf3 Bf6 Rd3 Rf3 Rb3 N1c2 Kg8 Ba6 Q7c5 Bab5 Qcd6 Bd8 Qb4 R8e7 Rf4 Na1 Qbd6 Re8+ Qf8 Be7 Kf7 Bd8+ Qe7+ R8xe7+
1Q1N2N1/1B1kn1b1/P3b1K1/r1b1pR1p/4Np2/1R5B/q2rB3/Nq1N3N w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 h3 Kd7 h4 Ke8 a4 Kd7 e4 g5 hxg5 Kd6 Ba3 Kd7 d6 Kc6 d7 bxa3 f4 Kd6 d4 Ke6 e5 Kf5 d5 e6 Rh5 Qe7 Rh1 Qd6 exd6 Nc6 Qh5 e5 Qd1 Kg6 f5+ Kg7 Qh5 Nd8 Qd1 Ne6 fxe6 Kg6 Ke2 Kf5 Ke3 b5 d8N c5 g4+ Kg6 Ke4 h5 a5 b4 a6 c4 d7 b3 e7 f6 e8B+ Kg7 Kf5 a2 g6 b2 d6 c3 g5 c2 Nh3 c1Q Nf2 Qc7 Nf7 Ra7 Bh3 Rh6 Rf1 Bb7 d8N Qc4 d7 Rh8 Qb3 Bc8 Nc6 Qc5 Nh1 Rh6 Nb4 Qb6 Nc2 Qc7 Nc3 b1Q Nd6 Qa5 Nd1 Qa3 Ne4 Rc7 Qb8 Rc5 Rf3 Qa4 Rb3 Ra5 Bf7 Rh8 Bd5 Qa3 Bb7 Ne7+ Ke6 Kg8 g7 f5 Kf6 f4 d8N Qbc1 Rab1 Be6 Na1 Rh7 R1b2 Qb1 Rg2 Rh8 Nc2 a1B Rgg3 Nd5+ Kg6 Bd4 Na1 Qa4 Rb6 Rh7 Rgb3 Qaa2 Rc6 Bf2 Rc7 Rh8 Rf7 B2c5 Rf5 Ne7+ Kf6 Kh7 g6+ Kh6 g8B Rh7 g7 Rh8 Bf7 Kh7 Bg6+ Kg8 Kg5 Rh6 Be8 Rg6+ Kh4 Rg2 Bb5 Rd2 Kg5 Bb6 Be2 Bd4 Nc6 Bc5 Nf6+ Kf7 g8N Bg7 Nd8+ Kf8 Ne4+ Ke8 Rf8+ Kd7 Rf5 Nc8 Kg6 Ne7+
r3RB2/R3R2n/1k1n2P1/N1pBN3/1r1R3p/r1n3Q1/1p1n4/n1NRRK2 w - - 0 1 legal: proof: c4 a5 b4 axb4 a4 b5 f4 e5 Nf3 exf4 Qb3 d5 cxd5 Qd7 Qc2 b3 Qd1 b4 Ng1 Qb5 axb5 g5 g3 f5 Ra3 f3 Kf2 g4 Ke3 f2 Ra1 f4+ Kd3 f3 h3 Bh6 Ra6 Be6 Ra1 Bf4 gxf4 g3 Ke4 Kd7 Kd3 Bg4 hxg4 Ke8 e4 Kd8 g5 h5 b6 c5 b7 Kc7 d6+ Kb6 d7 b2 d8R h4 e5 g2 g6 b3 e6 Rh6 f5 Nc6 b8R+ Kc7 f6 Ra6 e7 Rb6 e8R Ra6 f7 Na5 f8N Rh8 Re7+ Kc6 Ne2 g1R Bg2 f1N Na3 b1N Qe1 b2 Nc4 Rh5 Rd4 Nh6 Rbe8 Ng3 Nd7 Nc3 Nde5+ Kb5 Ke3 f2 Bd5 f1N+ Kf2 Nb3 Na5 Kb6 d3 Nhf5 Bh6 Ng7 Nc1 N7f5 Bf8 Rh8 Qe3 Nh5 Qg3 Nfd2 Ra2 Rd1 Re1 Na1 Kg1 Nc4 Kf1 Nd2+ Kg2 Rh7 Rde4 Nd4 Nac4+ Kb5 Be6 N2f3 Rg7 Ndc2 d4 Nf6 d5 Na3 d6 Ra8 d7 Rd4 d8R Ka6 Rd1 Nd2 Ree1 Kb5 Rf7 Rg7 Rdd7 Nh7 Rf4 Ka6 Rb7 Rc7 Bd5 Rc6 Rbf7 Rc7 Rfe7 Rca7 Nd6 Ka5 Nb7+ Kb6 Kg1 Rb4 Rd4 Nab5 Kf2 Ndb1 Kf1 Nd6 Ra3 Raa4 Ra2 Rb3 Ra3 Rab4 Ra7 Ra3 Na5 Nd2+
R2nr2B/1NQn2b1/P3Bn1N/bN3NN1/q1b2b2/1b2Rn1B/1k1nN2K/8 w - - 0 1 illegal: No possible last move
5qRN/1b1qqPNq/1k1N1N2/8/3NBrQn/KN1r1qB1/1n2n3/R1R1n3 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 b4 a5 h4 gxh4 Qb3 a4 Qc2 Bg7 Qd1 Bd4 Be2 Bb6 Bf1 Ba5 bxa5 Bg4 Nh3 Be6 Ng1 Bc8 f4 Kd7 d4 c5 Kd2 Kc7 Kc3 e5 Kb2 h5 g4 c4 g5 c3+ Ka3 h3 f5 h2 g6 h4 f6 h3 a6 e3 d6+ Kb6 a7 c2 d5 e4 d7 e2 g7 e1N d6 e3 Bd3 e2 Bf4 c1N Be4 Rh4 Nd2 Nc6 Ngf3 Nh6 g8N Ncd3 Nb3 Nb2 Nfd4 Bb7 Bg3 Qf8 d8N Nf5 N8e6 Rf4 Ng7 Rd8 a8R Rd7 f7 Nh4 Ne7 Rd8 Rg1 h1Q Ng6 h2 Nh8 Qf3 Rc8 h1Q Rg2 Nb4 d7 Na2+ Rc5 Nc1 Rg1 Re8 d8N Re6 Rg2 Rd6 Rc7 Qh3 Rc8 Qd7 Rc5 Ba6 Nb7 Rd5 Nd6 Bb7 N4f5 Rd3 Nd4 Na2 Rcc1 Nc3 Kb4 a3 Rg1 a2 Ka3 Qh5 Rg2 Qh7 Rg1 Nef3 Rg2 e1Q Rg1 Ng5 Qg4 Ne2 Rg2 Ngf3 Rg1 Ka7 b6+ Ka6 Rg2 Qf2 Rgg1 Ne1 Rg2 Qf3 Rg1 Bc8 b7 Kb6 b8N Bb7 Rg2 Qde7 Nd7+ Ka6 Nf6 Kb6 Rg1 Qd7 Rc8 Qfe7 Rg8 Qf8 Rc1 a1Q+ Kb4 Qb1 Ka3 Qc2 Ra1 Qcc7 Rh1 Qde7 Rg1 Qcd7 Rh1 Neg2 Rhc1 Ne1
1n1B2r1/1qb1QK2/2pBrbq1/Nkr3P1/5bRR/B2q4/n3N3/N2BB2B w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 f5 Kd2 h5 Ke3 a5 Kf4 h4 Ke5 c6 e4 f4 d6 a4 d5 a3 b6 h3 b5 h2 g5 a2 b7 f3 b6 f2 Qe1 Ra4 Nd2 Ra6 Ba3 Rh3 Nb3 Ra5 Ne2 g1R Bg2 Ne7 Kf6 Rh6+ Kf7 Rc5 e5 Qc7 e6+ Kd8 d7 f1Q+ Bf3 g2 Rb1 Bg7 Na1 Bf6 Rb4 Rh8 Rg4 Rg8 Qb4 Qb1 Be4 Qd3 Qe1 Na6 b8B Qb7 Bg3 Nb8 Qb4 Rd1 Be1 g1B Bf3 Be3 Be4 Qa7 b7 Kc7 d8N Bf4 Bf3 Rdc1 Qe4 Kb6 d6 B6e5 d7 Nd5 e7 Bc7 e8B Nb4 Qe7 Kb5 Be4 Re5 Bg2 Re6 Be4 N8a6 b8B Rc5 Nb7 Qa8 Na5 Qb7 Ba7 Nb8 d8B Rce5 Bd4 Rd5 Be5 Rc5 Nc2 a1B Bd6 Bf6 Na1 Na2 Bg2 Re3 Bd7 Re4 Be6 Re3 Bb3 Ree5 Bd1 Re6 Rg1 h1Q Rh4 Qhh3 Bh1 Qhf5 Rgg4 Qg6+
6R1/4BNR1/3rbn1r/2p1b1bk/2PrB1r1/Q2qRK2/B2N2r1/1n1RRR2 w - - 0 1 legal: proof: b4 a5 g4 f5 e4 h5 exf5 hxg4 d4 e5 dxe5 b6 a4 b5 axb5 axb4 Ke2 Kf7 h4 c5 f4 d5 h5 g5 e6+ Kf6 e7 g3 e8B d4 h6 d3+ Kf3 d2 h7 b3 b6 b2 b7 g2 Bc4 Ra6 Ba2 Rd6 c4 Qa5 Qa4 d1R Bc6 Ne7 Qa3 Bh6 Be4 Nd7 b8R Qd2 Rb7 Nd5 Nh3 Nc3 Re1 g1B Rc7 Qc2 Nd2 b1R Bb2 Rg8 h8R Bd4 Re3 Rg7 Rg8 Qd3 Rd8 Kf7 f6 Be5 f5 Rg6 Bc1 Rb2 Re8 Nb1 Re7+ Kf8 f7 Kg7 f6+ Kh7 Re6 Rd4 f8R g4+ Kg2 g3 f7 Rb6 Kf3 g2 Rg8 g1R f8R Rg2 Rd8 Bhf4 Ng5+ Kh6 Nf7+ Kh5 Bb2 Rdd6 Bc3 Bg5 Ra7 Bef4 Bf6 Be5 Be7 Nf6 Rad7 Rd4 Rg7 Rh6 Rdg8 Rbd6 Rdd8 Rdg1 Rd7 Nc3 Rd1 Rg4 Rb7 Bd7 Rbb1 R1g2 Rf1 Bc8 Rbd1 Nb1 Bb7 Qb3 Rd3 Bef4 Ree1 Be5 Be4 Be6 Rde3 Qd3
4qQ1r/4R1P1/KN6/NrpB1rRB/2nb1N2/2b1br1R/1N2bNn1/Nk6 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 Ke7 e4 Qe8 b3 Kd7 Ba3 Qd8 Bc5 Ke8 Be3 fxe3 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Kf4 g4 a5 g6 c5 b6 h5 Kb5 f5 g7 h4 e5 Ke4 e6 a4 d6 a3 b4 e2 d5 e1B g5 h3 b7 f4 e7 h2 e8N a2 g6 f3 d7 f2 d6 Ra4 Na3 Ra7 Nh3 Rh5 Be2 f1R Nf2+ Ke3 Nc2+ Kf4 Qc1+ Ke5 Qh6 Rg5 Bh5 Nc6 b8N Bc3 Re1+ Kd5 Re7 Ra8 Na1 Na5 Nc6 Qc7 d8R Nc4 d7 Nf6 Nd6 Ng4 Na5 Kd4 g8B Nge3 Bd5 Rf5 g7 Ng2 Qh8 Bb7 Rde8 Qc8 d8N Rb8 Ne6+ Ke3 Rg1 Kd2 Nf4 Kc1 Re3 h1R R8e7 Qe6 Rh3 Kb1 Qg8 Bc6+ Ka6 Rb5 Qh8 Qf7 Qg8 Qe8 Qh8 Na3 Ndc4 Bd7 Nb2 Nc4 N4d3 Rf3 Nf4 Bf5 Qg8 Bd3 Qf7 Be2 Qg8 Rb8 b5 Bd4 b6 Rh2 Rd7 Be7 b7 Bg5 Re7 Rh1 Qf8 Bh6 Ne6 Bhe3 Nf4 Rh2 Ng6 Rf5 Nf4 Bc3 Nfd1 Rf3 Nf2+ Ne1 Rg5 Ng2 Rhg3 Rh4 Rh3 Bcd4 Bhf7 Rh8 Bh5 Rc8 b8N Rd8 Nbc6 Rb8 Ne5 Rb4 Nd7 Rb5 N1b3 a1B Nb6 Qd7 Nbd1 Bab2 Na1 Bbc3 Nb2 Qe8
3r4/N2n1K2/2Rqnb1Q/k2B1Pq1/1R1R1q1R/1R1qnq2/pBB1N3/3rR3 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b3 a5 b6 a4 Qe2 a3 Qf3 Bd7 Qd1 Ba4 bxa4 Qc8 Nc3 Qd7 Nb1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 h5 Kg5 e5+ Kg6 e3 d4 h3 g4 c4 f4 c3 f5 c2 a5 e2 g5 e1Q a6 e4 b7 Kc7 d6+ Kb6 a7 a2 d7 e3 d5 h4 d6 h2 Bd3 e2 Bb2 c1Q Qd2 h3 Kf7 Qed1 g6 e1N g7 Nf6 g8R Nc6 Rg6 Nd4 Ne2 Be7 Bc2 Ng2 Qh6 Ka5 b8R Qg5 Nbc3 Ne3 Rb3 Qb6 d8R Qb4 Rg1 h1Q d7 h2 Rg4 Qf3 Rb8 Qff4 d8R h1Q Rh4 Qhf3 Nb5 Re8 Rd7 Qdd2 Re1 Rc8 Bb1 Rc1 Bc2 Qd3 Rbb7 Rc8 a8B Rd8 Na7 Rd1 Rb6 Qc5 R6b4 Qcc6 Rd6 Nd7 Rd5+ Qc5 Rgb6 Ne6 Rdd4 Qce5 Bd5 Qd6 Rc6 Bf6
n1N1bK2/4Bn2/nR2Rn2/3r2q1/p3bknR/P2RN3/RnR5/1B1NQ2n w - - 0 1 legal: proof: f4 c5 g4 f5 b4 e5 c3 exf4 c4 f3 bxc5 d5 Bg2 dxc4 Bh3 Ke7 Bf1 Ke8 h3 a5 Bb2 g5 Bc1 b5 Rh2 f4 Rh1 Bh6 h4 Ra7 Nc3 Rf7 Nb1 Rf5 gxf5 g4 Rh2 Qd4 Rh1 Bg5 hxg5 Qd8 Kf2 Ke7 d4 h5 e4 b4 f6+ Ke6 c6 b3 e5 Kf5 a3 b2 d5 c3 d6 c2 e6 a4 c7 h4 f7 h3 f8R+ Nf6 e7 h2 e8R Bb7 c8N Qe7 g6 Bc6 g7 Na6 g8R Rh5 Nc3 b1B d7 Qe5 Bb2 c1N d8R Bbe4 Re6 Be8 Bd3 Qd5 Nh3 g3+ Ke1 f2+ Kd2 f3 Ke3 g2 Nf4 g1N Ra2 Qe5 Rg2 Nh3 Nfd5 Ng5 Bb1 Nf7 Qe1 Nd3 Nd1 Qf4+ Kd4 f1N Ba1 Ne3 Rgc2 Neg4 N5e3+ Kg5 Rdd6 f2 Rb6 f1N Bc3 Qg3 Bb4 Nd2 Be7 Kf4 Rh8 Rb5 Rh4 Nb2 Rg1 h1N Rg2 Ndc4 Rgd2 Ra5 Rd3 Nb4 Rb5 Nb6 Kc5 Nd8 Kd6 Na8 Rb6 Na6 Bf8 Rd5+ Ke7 Bh5 Rb8 Nf7 Rbb6 Ng8+ Ke8 Qg1 Be7 Nf6+ Kf8 Qg3 Rhh2 Qh4 Rh3 Qg5 Rh4 Nd6 Re5 Be8 Re6 Nf7
Kq1bN3/1N1bkqN1/R1pN3B/6Rn/r6n/q7/RQn1NBNP/3b1b2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Kf2 h5 Bg2 a5 Ke1 f4 Bh3 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 Kf2 g5 d4 c6 b4 a4 e4 a3 d6 a2 d5 Nf6 e5 Qd7 b6 Rh4 b5 Na6 e6 Qf7 b7 Qc7 b8R Qa7+ b6 Kd8 d7 Nc5 b7 Qa6 e7+ Kc7 e8N+ Kd8 Na3 Rh6 Qc2 Ke7 d8N Qb6 Ra8 Rh4 b8B Qc7 Ba7 Nh5 Nb7 Ne6 Qb2 Bd7 Nc4 Nd4 Nbd6 Nc2 Ne2 Bh6 Ne3 g3+ Kg1 g2 Kf2 g1N Ng2 g4 f6+ Kf8 f7 Bg5 Bc5 Bd8 Ra6 Ke7 f8N g3+ Kf1 f2 Ne6 Nh3 N6g7 Ng5 Rg1 Rg4 Nd4 Rh4 Ke2 f3+ Kd3 f1B+ Ne2 f2 Kc3 Nf3 Bh6 Rf4 Bd4 Re4 Kc4 Nh4 Kc5 Rg4 Nc1 Bc4 Ne2 f1B Bf2 Bb3 Ngf4 Nb4 Nh3 Bd1 Ne4 Bf5 Nhf4 Nc2 d6+ Kf7 d7 Bg5 Rc1 a1Q d8N+ Kf8 Rb1 Bd7 Nb7 Bd8 N4d6 Ke7 Rc1 Qa2 Ra1 Qf7 R1a2 g2 Nd3 Rf4 Ne1 Qb8 Nc7 Re4 Kb6 Qc8 Ka7 Ra4 Nce8 Qc7 Ng3 Qf3 Ne2 Qa3 Rh1 g1Q Ka8 Qg4 Rg1 Qc4 Rg5 Qf7 Ng2 Qb8+
2R2b2/2B1NN1b/Pn1r2p1/r1bn3R/kN4R1/3RQ3/n1K1nn2/rBR4R w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 c5 d4 h5 Na3 hxg4 Nb1 c4 Ke2 Qb6 Ke1 Qc5 dxc5 Kd7 Nc3 Kd8 Nb1 Ke8 Kd2 Kd7 a4 b5 h4 e5 f4 c3+ Kc2 g3 c6+ Kc7 f6 Kb6 f5 Ka5 h5 g6 c7 e4 f7 g2 h6 e3 h7 e2 d6 e1R d7 Nh6 d8R Ng4 f6 Nf2 Nh3 g1B Rd3 Nd7 Qf3 Nb6 Na3 Be6 c8N Rg8 h8R b3+ Kb1 b4 Nc2 b2 Ng5 Bc4 R8h5 Re6 Bd2 Rd6 Bf4 Rh8 Qe3 Ra7 R5h4 Rh5 Ne7 Bd5 Rg4 Bb3 Ne1 Ba2+ Kc2 b1N Bg2 Be6 Be4 b3+ Kc1 b2+ Kc2 Kb4 a5 Ba2 Bg3 Ka4 Bh2 Nd5 Bf4 Nd2 Rc1 b1N Bh2 Nc4 a6 Rc7 Bf4 Ncb6 Bg3 Rc5 Bh2 Ra5 Bg3 Bg7 f8R Bc4 Rc8 Bf8 Nf7 Rh6 Rh5 Ba2 Re5 Rh1 Rh5 Nc4 Nd8 Nh3 Kd1 Ncd2 f7 Rf6 Qg5 Bh6 f8R Bc5 Rf3 Nb4 Rc2 Bg8 Bf5 Nc4 Bf4 Na2 Bc7 Bh7 Rf1 Re6 Nd3 Rd6 Rh2 Rg1 Rh1 Bg7 Be4 Nb6 Rf3 Bf8 Re1 Rf1 Nf7 Rg1 Qd2 Rf1 Nb4 c2+ Ke2 c1N+ Kd1 Ne2 Rc3 Re6 Qe3 Rc6 Rb3 Nbc3+ Kd2 Ncd5 Bc2 Kb5 Rd3 Rd6 Kd1 Rff6 Reg1 Rf1+ Kd2 Rb1 Rc1 Ra1 Bb1 Ka4 Kc2 Nf2
1N2N1K1/r2Pkqn1/r3N1B1/NQq1R1n1/Nb2R2B/2b2pb1/p6N/5r1B w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 d4 h5 Kd2 a5 Kd3 c5 Kc4 f5 e4 h4 b4 h3 d6 f4 Kd5 a4 Ke6 a3 d5 c4 e5 c3 b6 a2 g5 c2 b5 h2 g6 Ra5 b7 Na6 b8N Rh5 g7 Ra3 b6 Rf5 b7 Qc8+ d7+ Kd8 Qd3 Rg5 Kf7 Nf6 g8B Qc5 e6 Rb3 Nf3 g1Q Bg2 Ne4 Bh7 Bd6 Bg6 Nc7 Nc3 Ra3 Qb5 Ra6 Kg8 Ke7 d8N Ne8 Na4 Qgf2 Re1 h1R Nh2 Rf1 Bh1 g2 Ba3 g1B Nbc6+ Kf6 b8N c1B e7 Ng7 Re3 Bb2 Ne6 Bc3 Na5 f3 e8N+ Ke7 Bb2 Bg3 Rae1 Qd2 R3e2 Qf4 Ba3 Re5 Bb4 Ng5 Re4 Rf5 Re5 Qc4 R1e4 Rf7 Ba3 Bb4 Bb2 Bd4 Bc3 Bf4 Be1 Bdc3 Bh4 Bg3 Nf4+ Kd8 d6 Rfa7+ Ne6+ Kc8 Kf8 Q4d5 Kg8 Qb7 Nd4 Kd8 d7 Qbd5+ Ne6+ Ke7 Re2 Qdc4 R2e3 Qf4 R3e4 Qf7+
1NN1NB1n/2nRp1r1/1P6/1rK3NN/2RNb1rk/p4n1n/Q7/B2bq2R w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 g6 cxd5 Nh6 f5 Ng8 g4 Bb7 h4 Bc6 g5 Bd7 f6 Bh6 Bh3 Qc8 Bf5 gxf5 g6 Bg5 hxg5 Qd8 Rh5 Be6 Rh1 Bc8 Ke2 h5 Ke3 c5 d4 a5 b4 a4 g7 Kf7 d6 Kg6 b6 a3 b5 c4 d5 h4 Kd4 e3 d7 h3 d6 c3 b7 h2 b6 c2 f7 e2 f8B Kh5 g6 f4 Qd2 e1N Bb2 c1R Nf3 Rc5 Nc3 Na6 b8N Bb7 Nb5 Rh7 Ng5 f3 Na7 f2 Nc8 f1B Rc1 Nc7 Rc4 Kh4 Ba1 Be4 Qa2 Nh6 g8N Be2 g7 Ra4 Nf6 Nf7 g8N Nh8 Ne8 Rb5 Ngf6 Rg7 Nh5 Bd1 Bb2 Rbb4 Kc5 Nf3 Ba1 Rb2 Na7 Qc8 d8N Qe6 d7 Rb1 Ndc6 Rab4 Re1 h1N d8R Nf2 Rd7 Nh3 Nc8 R1b2 Rf1 Rg2 Nd4 Rg4 Rh1 Qe5+ Rd5 Qg3 Rd6 Qe1 Rd7 Rb5+
1b2nR1N/1pRN1b2/4N2p/R1K2b1n/QqB4N/2r1n2b/4BP2/1NbNk3 w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 g5 b4 axb4 h4 f5 exf5 Qd6 g4 Ra5 h5 Rc5 h6 Qb6 Bb2 Rc4 Be5 Rc3 Bg3 Qd6 Bh4 gxh4 g5 Rc6 g6 Qd8 Qh5 Rf6 Qg4 Rf7 Qd1 Rg7 hxg7 Be6 Nh3 Bd7 Ng1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 c5 a4 h3 d4 h6 f6 h2 f7 b3 a5 e4 a6 e3 a7 b2 a8N e2 Ra5 e1N Nb6 Bh3 Ne2 Qe7 Qa4 Na6 Nec3 Nc2 Nd1 Nc7 Be2 Ne8 Nd7 Ngf6 g8B Nh5 g7 Ne3+ Kb5 Qe4 Re1 Be7 f8N h1B Ng6 c4 Nh4 c3 Bf7 c2 g8R c1B Rf8 Bd8 Rg1 Bf3 Rg7 Bc7 Be6 Bb8 Re7 Kc7 Kc5 Rg8 Rh7 Rg3 Bg8 Bfg4 Bf7 Be6 d6+ Kd8 Bg8 Bf7 d5 Rf3 Ne5 Qf4 d7 Ke7 d8N Kf6 d6 Kg5 Nd7 Kg4 Ne6 Qe4 Nf4 Qe7 Nfg6+ Qe4 Nh8 Qf4 Nbc3 b1B Rg7+ Bbg6 Rh7 Bf5 Nb1 B7g6 Bgc4 Bf7 Nb6 Qe4 d7 Kf4 d8N Qe7+ Kd4 Qb4 Rg7 Ng2 Nd7 Rc3 Rg6 Ne3 Rc6 Qa3 Rc7 Qb2 Bf1 Qb4 Ne6+ Kg4 N4g6 Kf3 Be2+ Kg2 Nh4+ Kg1 Bg4 Bd3 Bf3 Kf1 Bg4 Ke1 Be2 Qb2 Kc5 Bdf5 Bf1 Qb3 Be2 Qb4+
1R2NRKN/5B2/1r6/1R2p2r/2q1kq1R/1QRbBqr1/2Rn1Pqp/5bN1 w - - 0 1 illegal: No possible last move, all moves rejected
3rR1BQ/1BBB3P/5K2/1B2p1rq/B2r1pR1/br2qb1R/3kb1n1/N3N3 w - - 0 1 legal: proof: e4 d5 f4 c5 d4 g5 fxg5 a5 b4 axb4 Qh5 Nd7 Qxh7 Nb6 Qh4 cxd4 Qh7 d3 Nd2 d4 Nb1 Nd5 exd5 Bd7 Qh6 Bf5 Qh7 Bc8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kc4 h4 b5 g4 f5 a4 e6 h5 b3 d6 b4 d7 b2 h6 b3 a5 Ba6 g6 Qc8 d8R Be7 g5 Bb4 g7 Bc5 g6 Nf6 g8B Rb8 g7 Bb6 Rh3 Nh5 Na3+ Kc3 Bf4 b1R Nf3 b2 Re8 d2 Bb5 d1Q Ne1+ d3 Bg3 Nf4 Kf6 Kd2 c4 Rc1 c5 b1B c6 Qh5 c7 Bc5 Nac2 Ng2 Ra4 Ba3 Na1 Rc5 Rg4 Rb6 Be5 f4 Bd6 Qb7 c8B Qa7 Bcd7 Rg5 Bc7 e5+ Bge6 Ba2 g8B Bd5 Ba4 Bdb7 Bdb5 Bf3 Qg7 Rb8 h7 Qe3 Bed7 Rb7 Bbc4 Rb3 Bcb5 Be2 Qf8 Bb7 a6 Bbf3 a7 Kc1 a8B d2 Qh6 d1R Bb7 Rd4 Qg7 Kd2 Bge6 Rg8 Qh8 R8g7 Bg8 Re7 Bf5 Red7 Bfe6 Rd8 Bf5 Rdb4 Bfd7 Rd4
2k3Br/1b3BbB/R1r1P3/Nn3r1R/1p5K/2rBB2b/RB2p1b1/2NQ2n1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 Ra5 Rh5 Ra3 Rh1 Ra8 e4 f5 d4 e5 Bd2 Qd6 Bf4 fxe4 Bc1 e3 Ba6 e4 Bf1 Qe5 dxe5 Ra6 Rh4 Ra4 Rh1 Ra8 a4 Kd7 f4 b5 g4 c5 a5 h5 a6 h4 a7 b3 g6 e2 Kf2 e1R g5 c4 e6+ Kc7 g7 c3 g6 c2 d6+ Kb7 d7 h3 Kg3 h2 d8R b4 f5 e3 f6 b2 f7 Na6 Ne2 Nc7 Rd6 Nb5 Na3 b1B Ra6 Nh6 g8B Ng4 g7 Nf2 Ra2 Nh3 Bb2 c1R Nc4 Rc3 Nc1 Ng1 Bd3 e2 Na5+ Kc7 Bh7 Bb7 g8B Rf1 Kh4 Rc8 a8B Bg7 f8B Rf5 Bc5 Kd8 Bf7 Rc6 Be3 Kc8 Bg8 Rf8 Bg6 Bf5 B6f7 Bh3 Qd6 Rb6 Qd1 Bbg2 Be4 Rbc6 Be8 Rf1 Bef7 Rf5 Bd3 Bg4 Kg3 Rd6 Bf2 Bb7 Bc5 Rc6 Be3 Nh3 Rg1 h1B Rg2 Ng1 Rh2 Bg2 Rh5 B4h3 Kh4 Bf6+ Rg5 Be5 Rh5 Bg7
1R6/1q2RP1B/rQb2pRq/N5r1/RR2Nbnk/p3R3/3p4/KnB2Nq1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 e4 f5 exf5 Na6 f6 Nb8 f4 Qb6 f5 Qc7 f7+ Kd8 f6 exf6 Bd3 Ke7 Bf1 Qd8 Qe2+ Kd6 Kd1 g5 h4 a5 b4 g4 c4 d3 b6 g3 b7 g2 h6 a4 b5 d2 Kc2 Rh7 Kb2 Rh8 h7 d1Q h5 Qc7 b6 Nh6 c5+ Kd5 c6 d6 Rh4 Ng8 h6 Bd7 Qe3 Ne7 Nh3 Ng8 Bd3 Qh1 Nd2 Ra6 Rb4 Ne7 Nf2 Rg8 h8R Qh5 h7 g1Q Ka2 Bh6 Nf1 Bf4 Kb1 Rg7 Rg8 Rg5 h8R Qh7 Re8 Qh6 Rhg8 Qc8 c7 Nbc6 b8N Ne5 b7 Ke6 Qd4 d5 Bh7 Bb5 Qc5 d4 Nc6 d3 b8R d2 Rg6 Kf5 Na5 Qb7 c8R Bc6 Qb6 Nd5 Rc7 Nc3+ Kb2 Nb1 Ra3 Nf3 Ree3 Nh2 Ne4 Kg4 Re7 Kh4 Ka1 Ng4 Rab3 Qa7 Rc4 a3 Ra4 Qc7 Rbb4 Qb7
2r1NRNn/4Rrq1/bN1N3p/k3q3/r1r3R1/b4N2/BPNp1K1p/2B2Q2 w - - 0 1 legal: proof: e4 c5 h4 g5 d4 gxh4 a4 f5 exf5 b5 axb5 cxd4 Qd2 a5 Qd1 Na6 bxa6 Bh6 Nc3 Bg7 Nb1 Bf8 c4 d5 f4 Kd7 g4 Kc6 a7 Kb6 f6 e5 g5 a4 c5+ Ka5 f7 a3 f5 a2 f6 h3 g6 h6 c6 h2 g7 d3 c7 e4 Nf3 d4 Rg1 e3 Rg4 e2 Kf2 d2 Qe1 d3 Na3 Rh7 Nc2 Ba3 f8R Ba6 c8N Qd7 f7 Ne7 g8N Ng6 Nd6 Rc8 a8N Nh8 Nb6 Qc7 Rb1 a1R Bh3 Rg7 Qf1 d1R Bg2 Bb4 Bh1 Ra4 Ra1 d2 Ra3 Rh7 Re3 Ba3 Re7 e1Q+ Kg2 Qc3 Nh4 Ng6 Re5+ Rc5 Nb5 Ne7 Qf6 Ng6 Rb8 Qc4 f8N Ne7 Nfd7 Rf7 Qf1 Qb4 Rf8 Qc3 Ndf6 Rc8 Ne8 Ng6 Re7 Qg7 Nbd6 Qe2+ Kg3 Re1 Bd5 Nh8 Nf3 Qee5+ Kf2 Ree4 Ba2 Rec4
n2kn2q/BQ1nRrnP/5NR1/1rBB3K/1p6/4q3/1pq1NpR1/1B1B2B1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 h5 Ng1 g6 h3 Bh6 g5 Bg4 gxh6 g5 Bg2 Bd7 Bf1 g4 Nf3 g3 Ng1 Bg4 hxg4 Qc8 Rh4 Qd7 Rh1 Qd8 d4 f5 a4 b5 e4 c5 Ke2 c4 Kf3 h4 g5 g2 a5 h3 a6 b3 e5 c3 a7 h2 g6 b4 d6 b2 e6 c2 h7 Qc8 d5 Qc5 e7 Nh6 g7 Qc6 g8B Qc3+ Bd3 Qe1 Nd2 Qe6 Ne4 Nd7 Be3 c1Q Ne2 g1Q Bb1 Qc2 Ra6 Ng4 Bc5 Qd4 Rg1 h1N Rg2 Rb8 a8B Ng3 Qh1 Ngf6 Bc6 Rb7 Ba4 Ngh5 Ba7 Ng7 Rb6 Qcd2 Bd1 Qc2 Rc6 Rb5 Ra6 Nb8 Bf7+ Kd7 e8R Rf8 Re7+ Kd8 d7 Nfe8 Nf6 Qde5 Bg8 Rf7 Rb6 Nc7 Rd6 Na8 Bc5 Ne8 Ra6 Kc7 d8B+ Kc8 d6 Nd7 Bdb6 Qeb3+ Kf2 f3 Ba7 Kd8 Rb6 Qec3 Kg3 f2+ Kh4 f1N Kh5 f4 Ra6 f3 Rc6 Rf8 Bd5 Rf7 Bg1 f2 Bc5 Ne5 d7 Ne3 Rd6 Nf5 Ra6 Kc7 d8B+ Kc8 Rd6 Nd7 Bdb6 Qe3 Ba7 Qbc3 Ne4 Qg7 Rdg6 Qh8 Nf6 Kd8 Qh2 Nd4 Qd6 Ne6 Qa6 Ng5 Qc6 Ne6 Qb7 N6g7+
N1KRR1bq/2pp4/qR1bBb2/P5qk/Nn4R1/5Bp1/Rq2nQ1B/5R2 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 b4 a5 c3 axb4 c4 b3 d4 g5 Qf3 e5 Qg2 b5 Nd2 e4 Qf3 b4 Nb1 Ra5 Qd1 Re5 dxe5 Rh6 Ke2 Rb6 Ke1 Rb5 cxb5 Bd6 Bb2 Be7 Bc1 Bf8 Kd2 Kf7 a4 e3+ Kd3 b2 Kc4 b3 f4 e2 h4 e1Q h5 g3 b6 g2 Kb5 g4 e6+ Kg7 a5 Kh6 f6 Qf2 f7 Qe1 f5+ Qd2 e7 Qe8 f6 Qe3 b7 Na6 b8R Nc5 Be2 Nd3 Rh4 Qd2 Qf1 Kg5 h6 Nb4 h7 Qe3 h8R Qd8 e8B Bh6 f8R Na6 f7 Bg7 Nc3 b1Q Rb6 b2 Qf2 Qd2 Na4 Bf6 Bf3 Ne7 Ne2 g1B Nec3 Nf5 Ra2 Bb7 Nd5 Ng3 Rfg8+ Qg6 f8R Qf4 Bf7 Nb4 Be6 b1Q Bb2 Bh2 Be5 Qa8 Rf7 Qb3 Rd8 Ne2 Rhe8 Qb2 Bd6 Qh5 Rff8 Kh6 Be5 Qg5 Bd6 Bg1 Bh2 g3 Rg4 Qh3 Qe1 Bc5 Qf2 Bd6 Rf7 Qb8 Rff8 Ba8 Rf7 Kh5 Rff8 Nc2+ Ka6 Qc8+ Ka7 Qa6+ Kb8 Nb4 Rf7 Qd3 Kc8 Qb5 Rb7 Qhh4 Ndb6 Qh3 Rb8 Bd5 Na8 Qa6+ Rb7 Be4 Rff8 Bh7 Rf7 Bg8 Rff8 Qd3 Rb6 Qa6+ Bb7 Kg6 Qe3 Bc3 Rf1 Bf6 Qc5 Qh8 Qf2 Qd3 Bbd5 Kh5 Bf3 Qa6+
rR6/B3Bp2/qqbN2pp/2Q1RB2/6p1/N1N1P3/B1B4n/r1kq1BnK w - - 0 1 illegal: manual, White h pawn needs to take piece on g7 and thus doesn't promote to bishop. That leaves white a-d pawns having to promote to 1 dark and 3 light squared bishops, making this illegal.
b3K1N1/2P1p2Q/1n4Bp/NN1Bqb2/q1R1R1Br/1Bp1p3/q3rB2/kB6 w - - 0 1 illegal: No proof kernel
B6n/1b2R1Nq/Q3R1n1/3B1RP1/nNppq3/p1BRR3/p1R2K1k/r3n3 w - - 0 1 legal: proof: e4 a5 b4 b5 c4 f5 exf5 g5 h4 Nc6 d4 Nb8 c5 gxh4 a4 bxa4 b5 Ra6 Bc4 Bh6 Be2 Be3 Bf1 Rb6 cxb6 c5 Ne2 c4 Ng1 Bf4 Qd3 Bd6 Qd1 Bc5 dxc5 Kf8 Bf4 Kf7 Bc1 Ke8 f4 Kf7 g4 Kf6 g5+ Kg7 f6+ Kg6 f7 Kf5 f8R+ Nf6 b7 d5 b6 h5 c6 e5 c7 e4 Ra3 e3 Ne2 Kg4 f5 d4 Bd2 h3 Nf4+ Kg3 Rf7 h4 Re7 h2 Nc3 h3 Ne6 e2 Ng7 Qg8 Bg2 Nh7 f6 Nd7 b8R Nhf8 b7 Ng6 f7 Qh7 f8R Nde5 Qa1 Nf7 Bd5 Rg8 Ra8 Nfh8 b8R Bb7 Rf5 Re8 Ra2 a3 c8B a4 Ra6 Rf8 Rhf1 h1Q Rc2 h2 Rae6 Qe4 Na2 h1N Nb4 Kh2 R1f3 Nf2 Rd3 Nd1 Bc3 Nb2 Kf2 e1N Bd7 Rf7 B7c6 Rf6 Rbe8 a2 Qd1 a3 Qb1 Bc8 Ba8 Na4 Qb2 Bb7 Qb3 Nb2 Qa4 Rf8 Qa6 Na4 Rff3 Rf4 Rf8 Rg4 Rfe3 Rg1 Rff6 Ng2 Rff7 Ra1 Rf5 Ne1
2nr2N1/2b1PBQ1/1bkpR2p/1RB1n1Kb/2R1R3/N5pb/6p1/RN2R1n1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 f5 b4 e5 d4 exd4 c4 g5 b6 a4 b5 a3 b7 Ra6 h4 Rb6 c5 fxg4 cxb6 g3 Qd3 g4 Qd1 Qg5 hxg5 Bg7 Bb2 Bh6 Bc1 Bf8 Kd2 c5 f4 a2 e4 d6 g6 Kd7 f5 d3 Ke3 g2 Kf4 c4 g7 d2 f6 g3 f7 c3 e5 c2 e6+ Ke7 Bc4 Nc6 b8R Na7 b7 Nc6 b6 Kd8 e7+ Kd7 Ba3 c1B Bc5 Nf6 g8N Ng4 Kg5 Na7 Ne2 Bg7 f8R Ne5 Bf7 Kc6 Na3 Bh3 Re1 Nc8 Nc3 Bb2 Qb3 d1B Ncb1 Bd4 Qb2 Bh5 Ra8 Bc3 b8R Ba5 b7 Bc7 Ra4 Bh6+ Kh4 Bf4 Rae4 Be3 Ra8 Bf2 b8R Be3 Rb5 Bd4 Nc3 Be3 Rac1 a1N Ncb1 Nb3 Rcc4 Nc1 Qa1 Bf2 Kg5 Ne2 Raa4 Ng1 Ra7 Nd7 Qg7 Bd4 Re6 Ne5 Raa5 Nb6 Rfa8 Nc8 Raa4 Bf2 Nf6 Rd8 Ng8 Bd4 R8a7 Bc3 Rce4 B3a5 Rac4 Bab6 Nc2 Ne2 Ra1 Ng1 Nca3 h6+
3n1R2/p3Bb2/2NB1BB1/B1R1N3/1bRK4/Bpqb1QP1/p1k2p2/n1n2b2 w - - 0 1 illegal: No possible last move, all moves rejected
1qr2n2/b1r2NqR/BRNr4/3QNN1B/1N3nN1/2rn1K2/2b2Pr1/Bkq5 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 Kf6 d4 Kf5 b6 a5 d6 h5 d5 c5 b7 e5 b5 a4 d7 e3 g4+ Ke4 b6 h3 d6 h4 g5 h2 g6 c4 g7 c3 Qd2 a3 Bh3 c2 Bb2 c1R Ra2 Nf6 g8B Ra6 Nf3 Rc7 Ng1 Nd5 Ba1 Nf4+ Kd1 e2+ Ke1 Be7 Rc2 a2 Bg4 h3 Bh5 Qf8 d8N Bf5 d7 Bc5 Qa5 Kd3 Nc6 e4 d8N Nd7 Nf7 Qb8 Rb2 Nf8 Nf3 Be3 Rb5 Kc2 Nbd2 Bg6 Nb3 Kb1 N3e5 Bd4 Bc3 a1Q Ng4 Bc5 Kd2+ e1N Nce5 e3+ Kd1 Ned3 Nd4+ Qb2 Nf5 Bh7 Rb3 Bd4 Qd5 Bc5 Rg1 h1Q Rb5 Qg2 Rh1 h2 Rb3 Ra3 Rb4 Rb3 Rb5 Qa3 Ba1 e2+ Kd2+ e1R Rb4 Qba7 b8N Rg1 Nbc6 Qb8 b7 Ba7 Rb6 Bg6 Nb4 Rbc3 Ke3 Qc1+ Kd4 Qg3 Ke4 Rg2 Bh7 Qh4 Bg8 Qf6 Kf3 Qg7 Bh7 Qd8 b8N Qc8 N8c6 Qb8 Rd1 h1R Bg8 Rh4 Rh1 Rh6 Rh2 Bh7 Rh3 Rd6 Qb3+ Qb2 Nfd4 Ne2 Ncd8 Rcd7 Nh2 Rd5 Bg6 Qh6 Nh8 R5d6 Bc4 Qg7 Ba6 Bg8 Nf5 Rhc4 Rh7 Nef4 Bh5 Rc8 Nhg4 Rdc7 Ndc6 Be6 Qc4 Qc1 Nhf7 Bd5+ Qe4 Bb3 Qd5 Bc2
k2bK2N/bqPNn2B/rr3q1R/rRBq2r1/N1b1RN2/2N1n3/5QN1/5r2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 Kh5 Kb7 f4 e5 b4 a5 g4 h3 c4 h2 b6 h6 Kg6 e4 Kf7 a4 g5 e3 c5 e2 f6 e1B f5 a3 g6 h5 g7 d3 b5 h4 Qe2 a2 Be3 d2 Nc3 d1Q Nf3 d4 Na4 h3 Nh4 d3 Ng2 d2 Qf2 Bd7 c6+ Kc8 c7 Kb7 Bc5 Rh5 Bd3 Ne7 g8N Nd5 Ne7 Ne3 Nd5 Nc6 Ndc3 Ne7 Rb1 a1R Rb4 Bc8 Re4 Rg5 Bc2 Qd5+ Ke8 Qf3 f7 d1R f6 Ra6 Bb1 Bg7 f8N Be6 f7 Bf6 Ng6 Ka8 f8N Qf4 Bc2 Rdb1 Nh8 Bd4 Nfg6 Qf6 N6f4 Qb7 Re5 Bc4 Bh7 Bd2 Re6 Rb3 Re1 h1R Re2 h2 Re1 Nf1 R1e4 Ne3 Rd6 Rhf1 Rde6 Qe5 Rh6 h1Q Bd6 Qbd5 b7+ Ka7 b8N Ka8 b6 Qf6 Nd7 Be1 Qc2 Bh4 Bc5 Rb4 Qf2 Ra2 Nb2 R2a5 Nba4 Qg6+ Nf7 Rg3 Re5 N7f5 Be7 Qdc6 Ne1 Qhd5 Neg2 Rb2 Bf8 Bd8 Re4 Qgf6 Nh8 Rg5 Bd6 Ne7 b7+ Ka7 b8R Rbb5 Rb7+ Ka8 Ba3 Ba7 Bc5 Rb3 Rb4 Qb7 Rb6 Ra3 Rb2 Rb3 Rb1 Rbb6 Rb3 Qff5 Rb5 Qf6
N4k2/qR3bq1/nB3R2/r2r2N1/q5B1/NP4q1/3NQbKN/rBnNbn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 e4 c5 g4 f5 d4 h5 d6 h3 d5 a4 d7+ Ke7 e5 h4 e6 c4 g5 c3 b6 f3 g6 c2 g7 f4 b7 h2 b3 h3 Be3 c1B Bb6 a3 Qe2 a2 Na3 Qe8 d8N Na6 b8N Rh5 Nb7 Bd2 Nc5 Nf6 g8B Qa4 Nd3 Nd7 Bh7 Ndc5 d6+ Ke8 e7 Be6 Rc1 a1R Nd7 Bf7 Nb2 Rd5 Bb1 Bg7 Rc3 Bd4+ Re3 Bb4 Ne5 Bd2 Bg2 Be1+ Kf1 f2 Ng4 Ra7 Nd1 Nd3 Nf3 Nc1 Nd2 Ra8 Rg1 h1Q Bf3 Qh2 Re6 Qg3 Rf6 h2 Rg2 h1Q+ Rg1 Qc4 Nh2 Qa4 Bg4 Qe4 Rh1 Qg6 Rg1 Qg7 Rh1 Qc3 Kg2 Qc7 Rf1 Qa7 Rg1 f1N Rh1 Rf5 Rg1 Bdf2 Rh1 Kd7 e8N Rd8 Nc7 f3+ Kh3 Ra8 Rg1 Kd8 d7 Re5 Rh1 Ke7 d8N Kf8 Rg1 Rd5 Nde6+ Kg8 Ng5 Kf8 Rf5 Rad8 Na8 Ra5 Rf4 Rdd5 Rf6 Bd4 Qe3 f2 Bg6 Qh8+ B4h5 Ng3 Nge4 f1Q+ Rg2 Qh1 Qe2 Bdf2 Bh7 Nf1 Rg7 Qg8 Ng5 Qg1 Bb1 Qh8 Rh7 Qg8 Bg4 Qh8 Rd6 Bh5 Rb7 Qg7 Rf6+ Bf7 Be4 Bg3 Bb1 Qe3 Kg2 Bgf2 Bh3 Qe5 Bg4 Qg3+
2R1B1b1/3r4/1RqR4/r1Pb1KBR/1R1rnn1q/B3N2R/kb4bQ/3qnN2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 d5 Kg4 e5 b4 h5+ Kf3 a5 g4 h3 c4 e4+ Kf4 h4 b6 a4 g5 a3 b7 d3 f3 d4 b5 e3 b6 a2 c5 d2 f6 Ke6 f7 Kd5 g6 e2 g7 Kc4 Ba3 d3 Nc3 e1N Nd5 h2 Qe2 Kb3 Rd1 a1Q Ne3 Nd7 b8R h3 b7 Ne7 g8R Ra5 Rg3 Nd5+ Kf5 Qh4 f4 Ka2 Nf3 Bg7 f8B Bb2 Be7 Rd8 Rg5 Qc1 Rh5 Qb1 Bg5 N7f6+ Kg6 Rd7 f5 Ne4 f6 Nf4+ Kf5 Qc2 f7 Qa4 f8R Qc6 Re8 Rd4+ Re6 Bd7 Rc8 Be8 b8R Bf7 Rb7 Bg8 Rb4 Rd7 Rb1 d1R Rd6 d2 Qg2 Ra4 Bb5 Ra5 Rg1 h1B Qh2 Bg2 Rh1 Rc1 Ba4 d1Q Nd2 Rc4 Ndf1 Rd4 Rb6 Ba1 R1b4 Bb2 Rg1 Bf3 Rg3 Bg2 Qh1 h2 Rh3 Bf3 Qg2 h1B Qh2 Bhg2 Bb3+ Kb1 Bf7 Ka1 Be8 Ka2 Rd8 Be2 Rdb8 Bec4 Rc8 Bcd5
rb1r1B1r/3nrb2/2rR3n/5N2/n1B1N2b/3R1Bqn/Q1P1NBBk/2KB4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 b6 h5 b5 f5 g6 a5 g5 a4 b7 d3 b6 a3 g7 h4 g6 f3 Rh3 Kf4 e5 f2 e6 d4 e7 a2 e8B Qd6 Bf7 Nd7 b8B Nh6 g8B Be7 Rh2 Kg3 b7 f4 g7 f3 Ba3 h3 Bc5 Bh4 Kc1 d2+ Kb2 d3 Bg2 f1R Bh5 f2 B8d5 Re1 g8B f1R Bba7 Re7 b8N Rf6 Nc3 Rfe6 Rh1 h2 Qb1 d1R Nc6 d2 Nd4 Qe5 Be2 Rc6 Bdf3 Ba6 Bf7 Bc4 B7h5 Bf7 Bc4 Re1 Bb4 d1N+ Kc1 Nb2+ Bd1 Qd6 Bhf3 Na4 Qb3 Qb8 Qb2 Ree8 Bf8 Rd8 Qb1 Re7 Nge2+ Kf2 Rg1 h1N Bb6 Qg3 Ne4+ Ke3 Qb2 Nf2 Rb1 a1B Qa2 Nh3 Rb3+ Bc3 Rf1 Rce6 Bc5 Rc6 Rb6 Ba5 Ra6 Bc7 Ba7 Rc5 Rd6 Bb8 Rh1 Nf2 Rh3 Rc6 Ng1 Kf4 Nf5 Qg6 Rg3 Nh3 Bf2 Qg5 Bh1 Qg4 Bfg2 Qg8 Rgd3 Qg3 Ne2+ Kg4 Bb6 Nf2 Bf3+ Kh3 Bhg2+ Kh2 Ba7 Nh3 Bc5 Nf6 Bf2 Nd7
1rRq1q2/2B1q2Q/1n4R1/KBBkN1P1/r2N4/1qr2bnq/1b5B/B2NqB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kd6 g4 h5 d4 c5 Kd2 f5 Kc3 a5 b6 a4 b5 h3 b7 a3 g5 a2 b6 f3 Bd3 h4 Bf1 h2 Be3 f2 Ne2 h3 Qd3 c4 Kb4 f4 Nbc3 f3 Rc1 a1Q Nd1 Nd7 b8N c3 b7 c2 Nc6 Qa7 Ne5 Ne7 b8B+ Qac7 Kb5 Nf5 Kb4 Ba6 Ka4 Nb6+ Ka5 Ke7 d6+ Ke6 d7 Ng3 d5+ Kd6 Bd2 Bg7 Nd4 Bb7+ Ba7 Qc4 Bc3 Qb3 Ba1 Qe7 d8B Rb8 Ndc6 Rh4 Nd4 Kc5 d6 Ba8 Be2 f1Q d7 f2 Bc7 Rf4 d8B Qe1+ Qd2 f1Q Bb5 Qef2 Qd3 Rh4 Ba6 Qff8 Bb5 Q1f2 Rf1 Qg2 Rf6 h1Q Rg6 h2 Ba6 Qh3 Bb5 Rb7 Bcb8 Qc8 Bdc7 Qcd8 Bc4 Qg2 Ba6 h1Q Bb5 Nf5 Qh3 Rg4 Qh7 Ng3 Bf1 Qe2 Nec6 Qh6 e5 Kd5 e6 Qh3 Ne5 Bh8 Bd6 Qe4 Bbc7 Rb8 Bc5 Qed6 e7 Qe1+ Bc3 Bf6 e8B Q6e7 Beb5 Bg7 Ndf3 Rb4 Nd4 Bf6 Ba1 Bb7 Rb1 c1R Rb2 Rc3 Rc2 Bc8 Rc1 Bg4 B5d6 Bf3 Rc2 Nc8 Bac5 Nb6 Nc4 Ne4 Bh2 Ng3 Ne5 Qhd7 Nc4 Qef7 B5d6 Be7 Be2 Qh3 Bf1 Rd3 Ne5 Q7g7 Rc4 Rc3 Rc6 Rbc4 Ba3 Bc5 Bd6 Qge7 Rc8 Rb4 Bc7 Rbc4 Nc2 Be3 Bad6 Bc1 Bc5 Bb2 Nd4 Ra4+
bnK5/BNrB4/q2rNn1P/r2n3B/4B1N1/rQ2R1b1/BrbRBn2/k7 w - - 0 1 illegal: No possible last move, all moves rejected
B3RBk1/N5n1/r1b2Pr1/RR5n/r2Q3b/1bqR2R1/N1r1bR1q/2rN3K w - - 0 1 illegal: No possible last move
k1NR2Kb/rqPq4/b2NQ1q1/B1RNbB1q/4Bb1q/4N3/2r1NN2/4n1n1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 Kh5 Kb7 f4 e5 b4 a5 g4 h3 c4 h2 b6 h6 Kg6 e4 Kf7 a4 g5 e3 c5 e2 f6 e1B g6 a3 b5 a2 g7 h5 f5 h4 Qb3 d3 Nh3 d4 Nc3 d2 Bg2+ Nc6 Ne2 d1Q Be4 d3 Nf2 d2 Qe6 Ne7 g8B h3 Bh7 Kb8 b7 Nb4 c6 Ng8 c7+ Ka7 b8N Qb3 Nd7 d1Q b6+ Ka6 b7+ Ka7 b8N Qg3 Ne5 Bg7 Nc4 Ne7 Na6 Nec6 Nc5 Nd4 Bd2 Nbc2 Ba5 Ba6 Ne3 Nf3 Nb7 Ng1 Nd6 Bd2 Rc1 Ne1 Rc5 a1B Bg6 Rh6 Bh7 Be5 Bg6 Bf8 Kg8 Qd7 f7 Bfg7+ f8N Bh8 f6 Q1a4 Bf5 Qah4 f7 Qgg5 Be4 Qgh5 Bgf5 Rf6 Neg4 Bdf4 Ne3 Rh6 Ne8 Qf6 Nh7 Qhh4 f8N Qg6+ Ng7 Rh5 Nf6 Rg5 Nfd5 Rg2 Bd2 Kb7 Bb4 Ra7 Ba5 Qgh6 Ng6 Ka8 Nge7 Qg6 Nc8 Qhh5 Nfd1 Qh4 Nc1 Rc2 Ne2 Ngf3 Rg1 h1Q Nf2 h2 Rg5 Qg2 Rg4 Qgh5 Ne8 h1Q Ned6 Ng1 Rg6 Qgg5 Rg7 Qf6 Rf7 Q1f3 Rf8 Qfh1 Rd8 Q1f3 Neg4 Qb3 Nge3 Qb7 Nec4 Qfh6 Nce3 Q6g6+
1BQ5/Rn1qb2R/3RRr1K/r4B1R/1nqq3n/N1R5/kn1rN2P/1b4qB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 d4 a5 e4 g5 b6 c5 b7 f5 b5 f3 Kg3 f2 b6 c4 Qb3 f4+ Kg2 f3+ Kg3 a4 Ra2 a3 Bb2 c3 Qa4 c2 Bh3 f1Q Qc4 c1N Ne2 Nd7 b8R f2 Rb7 Nc5 Rh7 Qd7 b7 Ra5 b8R N1d3 Rb3 Nf6 Rc3 Nb7 Bg2 Qc1 Re1 f1R Bh1 Be7 Ra1 a2 Na3 Rd8 Rh5 Qe6 Rh7 Bd7 Qc8 Ba4 Rh5 Bc2 Rh7 Bb1 Rh5 Qc2 Bc1 Nd7 Bf4+ N7e5 Rh7 Qd7 Rh5 Bf6 Rh7 Nb2 Rh5 Ke7 d6+ Ke6 Rh7 Nc6 e5 Be7 d5+ Kf5 e6 Nb4 Be5 Qb3 Rh5 Qc4 Rh7 Rf2 Bf4 Rf8 Rh5 Rf6 Rh7 Qdc7 d7 Qd6 d8R Qd7 Rf3 Ke4 d6 Kd5 Rdh8 Qdc7 d7 Qd8 Ng1 Rd2 Bb8 Qe8 d8R+ Qd7 Rh5 Kd4 Ne2+ Kd5 Kf2 g3+ Ke3 g2 R8h7 g1N Rfh3+ Nf3 Rg3 Bd6 e7 Bc5+ Nd4 Bd6 e8B Bc5 Bg6 Be7 Bf5 g4 Rgh3 g3 Kf4 g2 Re6 Nh4 Rf3 g1Q Rc3+ Be4 Ne2 Qgd4 Rg1 a1Q Rgg7 Qd1 Kg5 Qf1 Rg6 Qa1 Kh6 Qag1 Bc7 Kc5 Rdh8 Bb1 Bb8+ Nc6 Rf8 Kb4 Rff7 Ka4 Rd6 Nb4 Rfg7 Rf8 Rge6 Rf7 Rc1 Kb3 Rc3+ Ka2 Bc6 Qe8 Qd7 Bf8 Rb3 Nc5 Bh1 Qc8 Rc3 Rf6+ Bg6 Qc6 Qc8 Qa4 Rc6 Bd6 Ra7 Be7 Rb6 Nb7 Rbd6 Rf3 Be4 Qd7 Bg6 Rf7 Bf5 Rf6+
2r2N2/2K2n2/3rB3/B3BB2/knnRrb1b/4NB2/P2bQB1R/q1qr1bN1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Kg3 b5 Kf4 f5 e4 c5 d4 g5+ Ke3 b3 h4 b2 h5 g3 d6 Kc6 e6 g4 Kf4 g2 Ke5 g3 h6 b4 h7 b3 d7 c4 e7 Kb5 Kd6 f4 d5 f3 e5 f2 e6 Ra6+ Ke5 Rd6 e8B Qc7 d8N+ Nc6+ Ke4 Bh6 e7 Bh3 Na3+ Ka4 Bf7 b1N e8B c3 Be2 f1Q Bf3 c2 Qe2 b2 Ne6 Bf4 Bd7 Nh6 Nc4 Na3 Nf8 b1R Bf5 Nb4 Ne3 Nc4 B7e6 Nf7 Rh2 Qc6 Ba3 Re1 Rd1 c1B Rd4 Bd2 Bc1 Rg8 h8B Qc5 Be5 Qc7 Qd3 Re2 Bb2 Qa1 Bc3 Re1 Qe2 Qc5 Nd7 Rc8 Nf8 Nb6 Bb2 Qcc1 Ba3 Nc4 Bb2 Rb6 d6 Ra6 d7 Rd6 d8B Rd1 Ba5 Re1 B3g4 Rd1 Nf3 g1B Bh5 Bf2 Ng1 Bf1 Bf3 g2 Ba3 Nc2 Bc5 Bh4 Ba7 Rdc6 Kd5 Re1 Nh3 g1R Bc5 Rg4 Ng1 Rd1 Bcb6 Bfg3 Ba7 Re4 Bc5 Ra6 Ba7 Bf4 B7b6 Rd8+ Kc6 Nb4+ Kc7 Rc8+ Kd7 Qac3 Rd6 Be7 Ng2 Nc2 Bf2 Nb4 Ne3 Bh4 Rd3 Q3a1 Rd4 Re8 Kc7 Rd6 Bh8 Rb8 Be5 Rc8+
Rb2Q1r1/2n1RN2/qR3n2/b5K1/q4rR1/n1k1P2B/q2Rb1NB/1Rn2qN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 g4 Kc5 b4+ Kc4 d4 c5 d6 f5 d7 a5 g5 h5 g6 h3 g7 h2 b6 a4 b7 a3 d5 h4 b5 a2 d6 h3 b6 Qe8 d8N Na6 b8R Nc7 b7 Ra4 d7 Bd6 Nc3 Nf6 Ne6 Rg8 Rb1 a1B Nb5 Bc3 d8R Ba5 Na3+ Kc3 e3 c4 Kf2 f3 Ra1 f4 Ng5 Bg4 Nf7 Rb4 Rb1 Qa4 Ra8 Be5 Bg2 Bh5 Kf1 f2 b8R Bg4 Qf3 Bh5 Ke2 f1N Nc2 Nd2 Qg4 f3+ Kf2 Qa2 Qg6 Ra4 R1b6 Nb1 Rd2 Na3 Ne1 Rb4 Re8 Bg4 Kf1 f2 Re7 Bh5 Bb7 Bg3 Bc8 Bf4 Bg4 Ra4 Ke2 f1Q+ Kd1 Qd3 Ng2 Qd7 Ke2 Qe6 Rb1 Qa6 Kf3 Bd6 Rb6 Rb4 Re5 Ra4 Kf4 Rb4 Bf5 Be2 Kg5 Ra4 Nf3 Rb4 Re1 h1Q Ng1 h2 Re7 Be5 Bh3 Bg3 Nf4 Qc6 Ng2 h1Q Qh5 Qa4 Bb2+ Kb3 Be5 c3 Qh8 c2 Rb1+ Kc4 Bd6 c1N Qh5 Kc3 Qh8 Rc8 Qe8 Rf4 g8R Bh2 Kh6 Rb8 Rg4 Bg3 Kg5 Bh2 Nf3 Qf1 Ng1 Bg3 Qb5 Rf8 Qe8 Rg8+ Kh6 Rf3 Bf4 Ncb5 Bg5 Bb8 Bf4 Nc7 Bh2 Rh8+ Kg6 Rf4 Kg5 Rg8+
Q2B2rB/B1r2q2/N2K2n1/1Bnr3P/1Bb1k1r1/bN2bb2/n7/3qRBRR w - - 0 1 illegal: No possible last move, all moves rejected
6rq/1K2bR2/5n2/n1Bb1rN1/1RR2r2/q1pb1Q1R/B2RPNR1/1qkn2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 a5 d4 h5 b4 c5 b6 h3 d6 f5+ Kd5 c4 b5 h2 d7 h4 b7 a4 b6 c3 Bh3 a3 Nd2 f3 Qf1 Kf4 g5 Ke3 g6 f2 g7 f4 Be6 a2 Ba3 h3 Ne4 f3 Bc5 Nc6 b8R Ra4 b7 Be7 Rd1 a1Q Rd2 Qa5 d8N Qb1 Nf7 Rc4 Nfg5 Qa3 Qg2 f1N Nf2 Rb4 Bf7 Bf5 Rc8 Bd3 b8R Ra4 Rb4 Nf6+ Ke6 Re8 g8R Ra5 Rg7 Rg8 Rc7 Ra4 Rc4 Ra5 Rb2 Rb5 Rbb4 Kd2 d5 Kc1 d6 Ne3 d7 Nd1 d8R Ra5 Bb6 Rf5 Bc5 Nh5 Kd7 Nf6+ Kc8 Rf4 Nfe4 f2 Kb7 f1R Rg6 R1f3 Nf2 Rf5 Rd6 R3f4 Qf3 Rg4 Qe4 Rgf4 Nh7 Bd8 Rcd4 Bb5 Ba2 Bc4 Rf7 Be7 Rg3 Bb5 Rd2 Bd3 Rd4 Qab3 Nf3 Qa3 Rhg1 h1Q Nhg5 h2 Rc4 Qg2 Qe3 Qh3 R1g2 Qh5 Ng1 Qh8 Rh3 h1B Rgh2 Bhe4 Qf3 Bd5 Rg2 Na5+
1KN1Q1Rq/5nB1/P2b1rRB/1b1rbq2/1k2B2n/2p4B/1r1n1B2/2B2RNq w - - 0 1 illegal: No possible last move, all moves rejected
r2kB2R/3n1n1R/3K2R1/N1nb1p2/1BN2rB1/1R5P/4brQb/n2RRnq1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 g5 d4 f5 e4 c5 d6 g3+ Kf3 c4 d5 c3 e5 a4 e6 a3 d7+ Ke7 d6+ Kf6 b6 c2 b5 g2 e7 a2 e8B Ba6 b7 Nh6 b6 Nf7 Qd2 Bc4 Na3 Rh4 Ne2 g1R Nd4 Rg2 Nb3 Be7 Rb1 a1N Na5 Bb3 Qe2 Bd5+ Qe4 Qc8 d8R Nd7 b8R Qc5 b7 Qg1 Bd2 c1N Be2 Ncb3 Bb4 Nbc5 N3c4 Rhg4 Rdc8 Bd8 Rc6 Bc7 Rd8 Rh4 b8R Rhg4 h3 Rh4 Bd1 Ra2 Rb2 g4+ Ke2 g3 Kf3 g2 Rb7 Rg4 Rb3 Nb6 d7+ Be6 Qe1 Qh2 Ne5 Ke7 Qf1 Nd6 Qe2 Bg8 Kf2 f3 Ke3 g1N Bh5 f2 Nec4 f1B Qg2 Nf3 Bg6 Bd3 Re1 Rf2 Bf7 Qg1 Be8 Bd5 Ra7 B5e4 Rb7 Nd2 Kd4 Nf1 Ke5 Bb8 Rbc7 Ndb7 Rg6 Nd6 Bf7 Bc6 Rh8 Rd4 Bg4 Be2 Ra7 Bc7 d8R Bb7 Rdg8 Bbf3 R8g7 Be4 Be8+ Kd8 Rgh7 Nf7+ Kf6 Bh2 Rd7+ Kc8 Rd5 Nbd7+ Ke7 B4f3 Rdd6 Rf4 Rd4 Bd5 Rdd1 Nfe5 Kd6 Kd8 Ra3 Re4 Rg3 Ref4 Rb3 Nf7+
rB4Bb/4bqn1/B1P2nbb/K2RQ3/1b3Nn1/1R2N2B/rBp1N3/Br5k w - - 0 1 illegal: No proof kernel
2RB2N1/Bk1K3n/7N/Br2qnqB/1R1B3n/5p1n/B2P1bbr/Q3r1Rn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 a5 g4 f6 b4 a4 e4 c4 b6 f3 g5 a3 g6 f2 g7 a2 d6 Kc6+ d7 c3 Ke6 f5 b5+ Kb7 e5 f4 Nf3 h3 Nh4 c2 Rg1 f3 Nf5 h2 Bc4 f1N Nh6 h1N Bb2 c1R Nc3 h4 Rb1 a1Q Ba2 h3 Ne4 h2 Nf6 Ne3 Bd4 Ng2 Rb4 Ne7 g8R Ra5 Kd6 Nf2 e6 h1N Qf1 Nd5+ e7 Nde3 Qe1 Bg7 e8B Nh4 Bh5 Nh3 Re8 Rh7 Nfg8 Qg5 d8B Nd7 Qd1 Nf8 Qa4 Kb8 b7 Re1 Qd1 Qb2 Qa1 Rh8 Kc6 Nh7 Rf8 Bf5 Re8 Bd3 Kd7 Nef5 Rf8 Qc3 Re8 Qc5 Rf8 Ka7 b8B+ Kb7 b6 Bf1 Ba7 Qe5 Re8 Bg2 Rf8 Ka6 b7 Rb5 b8B Kb7 Bbc7 Bf6 Bcb6 Be7 Ba5 Bc5 Bdc7 Bb6 Rc8 Bc5 Bd8 Bb6 Bc3 Bf2 Bcd4 Ng6 Ne7 Nhf4 Ng4 Nhf8+ Ke8 Ngh4 Bg6 Rh5 Nh6 Nh7 Bgf7 Nhg6 Kd7 Rh2 Neg8 Ngh4 Bh5 Nh3
Nk1B2qN/4b1n1/4b1N1/K1PB1RbN/3npN2/4bb2/Q2B1r2/Nqr2rR1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 f4 e5 h4 g5 c4 d5 b4 Kd7 h5 Kc7 b6+ Kb7 b5 g3 f6 d3 Kc3 g4 f5 g2 c5 e4 h6 a4 Kb4 g3 h7 d2 f7 d4 f6 d3 Qb3 d1R Ne2 g1B Bd2 g2 Ng3 a3 Rh5 a2 Rf5 Bd6 f8N Be3 f7 g1Q Na3 Nd7 Ng6 Rb8 f8N Ndf6 Nf4 Nh5 N8g6 Ng7 Ngh5 Be7 Ka5 Nh6 Nc2 Rf8 h8N Rc1 Rb1 a1B Qa2 Bb2 Na1 Be6 Be2 Kc8 Bg4 Qd5 b7+ Kc7 Bd1 Bbf6 Bb3 Bg5 Bc4 Rbc8 b8N Rf6 Bb3 Rcf8 Nd7 Qf1 Nb6 Kb8 Na8 Qc4 Re5 Nhf5 b6 Nd4 b7 Qd5 Rf5 R6f7 Bc3 d2 Bc4 d1B Bd2 Bf3 Bb3 Ka7 b8B+ Kb7 Bc7 Kc8 Bb6 Kb8 Bc4 Qd8 Bd5 Qd3 Rb2 Qb1 Rc2 Qc8 Bd8 Rf6 Be1 R8f7 Rg2 Rf8 Bd2 R8f7 Bb6 Qg8 Rg1 Bf2 Re5 Be3 Bd8 Bfg4 Nd3 Bd1 Nb6 Rf1 Na8 R7f2 Rf5 Bg4 Ndf4 Bf3
q1R3B1/1N2nQBq/q4q2/1pNr2N1/q3b1kr/1b1NK2N/RnNP1b2/R7 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 a4 c5 g4 b5 f4 h5 g5 e5 a5 h3 d6 h2 a6 e4 f6 Ke6 a7 Kf5 d7 e3 f7 c4 g6 b3 g7 h4 Qe1 b2 Qd1 h3 Qb3 c3 Na3 b1Q Ra2 c2 Bb2 c1Q Nc2 Kg4 f5 Qf6 d8N Bc5 f8N Rh4 Nd7 Ne7 g8N Nbc6 Qf7 Nb4 Nb7 Nd3 Bc3 Qa6 Bg7 Qca3 f6 Nb2 Bg2 Qb3 Bd5 Qba4 Bc4 Bd4 Ndc5 Be6 Nd3 Rd8 a8R Rd5 Rc8 Bb6 Qe8 Qa1 f7 Qa8 f8N Q4a6 Ra5 Qa4 Nh7 Bd4 Qf7 Bc5 Ke1 e2 Ng5 Ba7 Ndc5 Bb6 Kf2 Ba7 Ke3 e1Q+ Ne2 Qea1 Nf4 Qf1 Nd3 Qf6 Ra1 h1Q Ra2 h2 Nh3 Qb1 Ra1 h1B Nh6+ Kg3 Ba2 Be4 Bb3 Qb4 R5a2 Qba4 Ng5 Qh1 Ng4 Qh3 Ngf2 Qhf5 Nd8 Qh7 Nfh3 Kg4 Nb7 Rd7 Bd5 Bb6 Bc6 Bb3 Bd5 Ba7 Qe8 Bb6 Bg8 Rd5 Qf8 Bc7 Qe8 Bg3 Qf7 Bf2+
B3K1rN/1n2Q2q/1n2qN2/P1b2b1b/1r3BNp/5k2/B3r1R1/1Nr1rNRN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 c5 Kg5 Ke5 a4 Ke4 f4 b5 g4 e5+ f6 h5 Kg6 c4 Kf7 h3 d4 b3 d6 h4 f5 b2 d7 b4 g5 b3 g6 h2 d5 c3 d6 c2 g7 Ne7 g8B Nbc6 a5 Ra6 Qe1+ Kd5 Ra2 e4 Nh3 e3 Rg1 Ke4 Nf2+ Kf4 Nh1 Bh6 Bg2 Qb6 d8N Ra8 d7 Ra6 Ke8 Bf8 f7 Nd5 f6 Bc5 Nb7 Nd8 Nd6 Nb7 d8N Bf5 f8N Rh6 f7 Rg6 Bd2 c1R Ne4 Qc6+ Nd7 Nb6 f8N Ra8 Bc3 e2 Neg3 Ke3 Bf6 Qe6+ Be7 Ra6 Nf7 Ra7 Qb4 e1R Nf6 Ra6 N8h7 Ra7 Nd2 b1R Nh8 b2 Ngf1+ Ke2 Ng4 Ra6 Nhf2 h1B Nhf6 Ra7 Bc6 Bf3 Nh1 Ra6 Ngh2 Bh5 Nhg4 Rc4 Qa3 Rbc1 Nb1 Rb4 Be4 Nd8 Ba8 Nb7 Qa4 Kf3 Qd7 Nc4 Qc7 Rd6 Bf7 Rd2 Qe5 Rde2 Bg8 Qd5 Bd6 Nb6 Qe7 Qc4 Bf4 Qe6 Nc3 b1Q Rd2 Qe3 Ba2 Qbe4 Nb1 Qe6 Bg3 Qh6 Bf4 Qh7 Rc2 Re3 Rh2 R3e2 Rhg2 Rg8#
2RK1qB1/3bpRN1/2r5/2br1n1N/b1bn2BB/q3B1P1/kbr3B1/B4NQ1 w - - 0 1 illegal: No possible last move, all moves rejected
NqbBNN1N/P1N1q2b/R7/QRB1b1nK/4b3/3Br1q1/1n3k1p/r2b1N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 a4 Kd4 f4 h5+ Kg5 e5+ f6 b5 g4 c5 f5 h3 d6 h4 a5 h2 d7 e4 a6 b3 Bd3 e3 Na3 c4 Qe1 c3 Nc4 b2 Nb6 b1B Ba3 Nh6 Kh5 h3 g5 b4 g6 e2 g7 b3 g8N b2 f7 c2 f6 Bd6 f8N c1Q f7 Qcc7 Nf6 Bc2 Ne8 b1B Ng6 Nc6 f8N Qe7 d8B Qb8 a7 Bd1 Bb4 Ne5 Ra6 Nc4 Ba3 Rh7 Nh8 Nb2 Bb4 Rf7 Ba3 Rf1 Bc5+ Ke5 Nf3+ Kf4 Rg1 h1B Nh2 Be4 Rg5 Nf7 Rd5 Rg1 Nf1 Kf3 Rg5 h2 Re5 Qbb7 Rd5 Rb8 Na8 Be5 Bb5 Rg3 d4 Qb6 Bb4 Ng5 Bc7 Bh7 Bc4 Bbe4 Bd3 Qbd6 Ba3 Rg4 Qa5 e1Q Rc5 Rb7 d5 Nc4 Bb4 Qb6 d6 Rg3 d7 Qbd6 Bb6 Qb8 d8N Rc7 Nde6 Nb2 Rd5 Rc1 Bd8 Ra1 N6c7 Qe3 Rb5 Kf2+ Kh6 Rf3 Kh5 Qf4 Bd6 Qg3 Bc5+ Re3+
1BB3K1/1q6/k2q1bQn/n3R3/B2R1n2/q2b1r2/RBpPBbN1/2rb1N1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 f5 e4 a5 b4 h5 g4 c5 e5 Kc7 e6 Kb7 g6 h4 e7 h3 e8B c3 g7 c2 b6 h2 g5 a4 g6 c4 b5 c3 Ra2 a3 Nh3 Nc6 Bb2 c1B Qc2 Nh6 g8B Bc5 g7 Na5 Be6 Bf2 g8B Qd6 Be2 Rh7 Re1 Rf7 Qd3 c2 Nc3 h1N B8d7 Ng3 Nd5 Nh5 Ne3 Rf6 Nf1 Rf8 Be5 Bb2 Bb3 Bc3 Ba4 Bcd4 Bh8 Bf6 Bc4 Rf7 Bde6 Bd7 Bcd5+ Bc6 Qe4 Rg8 Bd7 Rg1 Qe8 Rf8 Qg6 Rh1 Raa1 a2 Bc8+ Ka8 b7+ Ka7 b8R Ba8 Rab1 a1Q Rb4 Qc1 Rd4 Qca3+ Bd3 Bb7 Re5 Kb6 Ra8 Rg1 Ne3 Rc1 B5e4 Bd5 Be2 Bc4 Bc6 Bd3 Nf1 Rf7 Kg2 f3+ Kh2 Ng7 Nf4 Nh5 Ng2 f4 Kh3 Be1 Bg4 f2 Bc8 f3 Bd5 Nf4+ Kg3 Kc5 b6 Rf8 b7 Kb6 b8B Rf7 Qg5 Rf8 Kh4 Rf7 Ng3 f1Q Bdc6 f2 Be4 Ne6 Kh5 Qh1+ Kg6 f1B Qh5 Rf8 Kh7 Bf2 Qg6 Nf4 Nh4 Qh3 Bh1 Qhd7+ Bg7 Bh3 Nf1 Qb7 Ng2 Bg4 Ra7 Rf7 Ra8 Nf5 Kg8 Bh5 Ba7+ Ka6 Bh8 Bf3 Bg7 Bg4 Bb8+ Kb6 Nge3 B6h4 Bd1 Nc6 Re7 Ne2 Rd5 Qc3 Bb5 Bh5 Ra2 Na5 Re8 Qa3 Ba4 Ka6 Bb2 Bd8 Rd4 Nh6+ Kh8 Rf4 Ng2 Bg4 Re5 Bf6+ Qg7 Re4 Kh7 Re3+ Kh8 Nf4 Bf3 Nf5 Kg8 Bh5 Qg6 Bg4 Bfc6 Bd1 Be4 Rh3 Bf3 Rg3 Be2 Rh3 Nge3 Rf3 Ng2 Nh6+
4r1BB/1b1Q4/2nbB1NR/3n1B1B/RNr2r2/6KN/bqpPB2b/k5nq w - - 0 1 illegal: No possible last move
7r/2KR1B1N/1q2qbn1/bqN1B1n1/rRB1P3/3N4/1pB4B/BnQb2nk w - - 0 1 illegal: No possible last move, all moves rejected
2qRB1q1/1R6/n1N3K1/1n3R2/R3prn1/QP1R3B/r1r3qB/1Rqb1Nbk w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 Kf5 d4 h5 f4 a5 g3 c5 b3 a4 d6 h3 d7 h4 b6 a3 d5 c4 b7 a2 d6 c3 Bd3 c2 Bb5 h2 Ne2 Kg4 f5 Kh3 f6 Kg2 g4 h3 f7 Nh6 g5 Ra4 g6 Na6 b8R Rg8 Bd2 c1Q g7 Qc5+ Nd4 Ng4+ Ke2 e3 Kd3 e2 Ke4 e1N Kf5 e4+ Kg6 Nc2 Qc1 Na3 Rb7 Rc4 Bf4 Rc2 Nd2 Rh8 g8B Rh4 Bc6 Nb5 Nf1 Bg7 Rb1 a1R f8R Raa2 Rf5 Qc3 Bc4 Qg8 d8R Be6 d7 Bf7+ Kg5 Bh5 Be6 Qc5 Qa3 Qc4 Bcd5 Qc8 Bf7 Bf8+ Bg6 Bg7 Nc6 Bd4 Be6 Bg1 Bg3 Ne3 Kh6 Rf4 Be8 Bd1 Ra1 Ng4+ Kh5 Qb8 Rb1 Qc7 Ra8 Qc8 d8R Nb8 Ra4 Na6 Nd2 Bd4 Rf1 h1Q Rf3 h2 Nf1 Kg1 Rd3 Qg2 Rg7 h1Q+ Kg6 Qh4 Bh2+ Kh1 B6d7 Qe1 Be6 Qed2 B6d7 Qc1 Be6 Qf8 Rb7 Bg1 Rg5 Ne3 Bh3 Ng4 Rf5 Qg8+
n2qq1qr/1n3B2/1k1B1R1Q/4B2R/Pq5N/1nK1bR1B/2bNB2p/1b2rB2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 g4 b5 a4 f5 e4 c5 e5 Kc7 e6 f3 e7 f4 e8B b3 d6+ Kb6 g6 f2 d7 b2 g7 h4 g5 f3 d5 c4 g6 b4 d6 b3 Be2 f1Q Bf7 c3+ Kd3 h3 Ra2 h2 Nd2 c2 Kc3 b1Q Ba3 f2 Qc1 b2 Ngf3 Qg1 Nh4 Ne7 g8B f1Q g7 Na6 Bb4 Nf5 Ra3 Qe8 d8B+ Nc7 d7 Bc5 Bf6 Nd6 d8R Bf5 Be5 Nb7 Rd5 Be3 Bbd6 Qd1 Ra5 Qg6 Rf1 Rd8 Bfc4 Na8 Bgf7 Rd7 g8B Re7 Bh7 Qgg8 Rf3 Bd3 Bf5 Be4 Bh3 Re6 Nf1 Bg6 Qd2 c1N Rf6 Nb3 Qc1 Qe4 Nd2 b1B Bef1 Qf4 Bce2 Qg4 Bf4 Bgc2 Rh5 Qe1 Bfe5 Q4g5 Rfh6 Qgd8 Rf6 Bd1 Qc2 Re7 Qg6 Bdc2 Qg5 Qg3 Qg7 Qf4 Qh6 Qb4+ Kb2 Bg1 Bec4 Bg6 Bf4 Re1 Bfe5 N3a5+ Rb3 Bgc2 Bb5 Qc4 Rbf3 Nb3 Ba6 Qcg4 Bae2 Be3 Kc3 Qb4+
1Nkr4/1Nnr2r1/2B1rnNb/p1N5/K1Rq2N1/2BR1n1q/1P5Q/B2Nq2b w - - 0 1 illegal: Other
q2N1N2/2br1N2/bnr1N2p/2B1nk2/1R1n4/3P2R1/bN1q2B1/b1NQq1KB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 c5 g4 f5 b4 a5 b6 a4 d6 Ke6 b7 f3 d3 c4 d7 f4 b5 h6 g5 h3 b6 h2 e5 c3 g6 c2 g7 a3 Ne2 a2 Nbc3 Nc6 b8N Nge7 g8B+ Kf5 b7 Nd4 e6 Ra6 Rb1 a1B Ba3 c1Q Nc6 Qd2 b8N Rh7 Rb4 Ng6 e7 Ne5 e8N Bd6 Bd5 Bc7 Rg1 h1B Bg2 Rb6 Kf1 f2 Nc1 Ba6 Na4 Qc8 d8N Rd7 Nb2 Qb7 Ne6 Qa8 Ncd8 Rbd6 Bb7 Rc6 Bd5 Be4 Rg3 Bf3 Bb3 Bd5 Ba4 Ba2 Nd6+ Kf6 N6f7 Kf5 Kg2 f1N+ Kg1 f3 Bb3 Ne3 Bd5 Rc2 Bdc6 N3c4 Bd5 Nb6 Bbc6 Rd6 Nd7 Rc5 Ndf8 f2+ Kf1 Rc3 Bh1 Rd7 Kg2 Rc5 Kh2 f1Q+ Bcg2 Qfe2 Kg1 Rc2 Rc4 Qee4 Bc5 Qh4 Rb4 Rc4 Be7 Rc6 Bd6 Qe4 Bc5 Qee1+
3Nb1B1/1N1R4/Kp2q1rq/R3BnN1/1n1NQr2/b1Pq3B/2r5/bk3NbN w - - 0 1 illegal: No possible last move
B1k1r1r1/3q1n2/1p3K2/bQ2q1R1/2P1N1RB/1n1RrNnq/R1RR4/N2b2q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 d5 Kd3 Kd7 f4 e5 c4 g5 h4 g4 a4 g3 h6 b3 h5 b2 f6 g2 f7 b6 f5 Ra6 a5 Qc7 f6 Bb7 h7 Bh6 f8R Be3 f7 Nc6 h6 Nb8 Qa4+ Nc6 Qb5 Nf6 Nd2 b1N Ngf3 g1Q Nb3 Nh5 Ra3 Bd2 Rh2 Ra8 a6 Ba5 a7 Rg8 h8N Nd2 h7 Ng3 Bg2 Re8 Na1 Nb3 Bg5 Kc8 Bh4 Nd8 a8R+ Qb8 Ra2 Bc6 Rd2 e4+ Kc2 e3 Kd3 e2 Ra7 Rg6 Rg8 e1R f8R Qe5 Rf5 Nf7 Rg5 Bd7 Rc2 Bg4 Bh1 Bh5 Rhd2 Qg2 Rg4 Rg5 Rg6 Qh3 Rd6 Rg7 Rdg6 Rgg8 R6g5 Bc3 Raa2 Ba5 Ng6 Re2 h8R Re4 Nf8 Re1 Nd7 Re4 Rc3 Re3+ Kc2 d3+ Kb2 d4 Rcc2 Kb7 Nc5+ Kc7 Ne4 Kc8 Re2 d2 Rh7 d1Q Red2 Nd8 Rd7 Qg1 Bg2 Nf7 Rd3 Be1 Rdd2 d3+ Rd4 Qhh2 Kc3 Qh3 Nh2 Qd6 Nc5 Rd8 Rgf4 Nh8 Ba8 Ree8 Ne4 Bd1 Nf3 Be2 Rfg4 Rd7 Rdd5 Nf7 Rd4 Bf2 Rd1 d2 Rf4 Be1 Rfg4 Qc7 Nf6 Rde7 Rd6 Qd7 Rdd5 Qc5 Rd3 Re3 Ne4 Bf2 Rh1 d1Q Rh2 Qg1 Rg2 Bd1 Rh2 Nd2 Rg2 Be1 Rf2 Qdf5 Rh2 Qe7 Kd4 Qf4 Kd5 Nb3 Rhf2 Qa7 Rfe2 Ba5 Red2 Ref8 Ke6 Qfc7 Rc5 Re8+ Kf6 Qb8 Rcd5 Qd7 Rdg5 Qe5+
nk1B1r2/Rq1BR2P/1N3qq1/2r5/Bp2R1R1/3N1nR1/Q1nqbK2/b1r3R1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 a4 Kd7 h4 c5 d4 Kc7 f4 b5 a5 e5 a6 g5 f6 g3 h5 c4 d6+ Kb6 f5 Ka7 f7 g2 d5 b3 d7 e4 d6 b4 f6 g4 h6 c3 h7 g3 Nf3 g1Q Qe2 b2 Bg5 e3 Ne5 g2 Na3 b1N Nac4 c2 Nd3 Qh2 Nb6 Bg7 f8R g1Q f7 Nh6 Rg8 Nf5 f8R Nd2 Rf7 Nd4 Re8 Qe7 d8R Qhg2 d7 Qb7 Qh2 Qgg2 Rg1 e2 Bh4 Qge4 Bh3 Qec6 Rf3 Qg6 Rfg3 Rf8 Ra4 Qed6 Ree3 Rf5 Rde8 Rc5 d8R Bg4 R8e5 Qde7 Rg5 Qee6 Re8 Qd6 R3e4 c1R+ Kf2 e1Q+ Kg2 Bd1 Bd7 N2f3 R5g4 Be5 Be7 Qdf6 Ra5 Qe3 Kf1 Qeh6 Qa2 Nc2 Kf2 Be2 Ra4 Ba1 Ra5 Nc6 Ra4 Rc8 Ra5 Kb8 a7+ Kc7 Ra4 Qd2 Ra3 Nd8 a8B Qbc6 Ra5 Ne6 Ra7+ Kb8 Bb7 Qd5 Bbc6 Nc7 Bb5 Qb7 Ba4 Qb2 Bf6 Na8 R8e5 Re8 Bd8 Rf8 Re7 Qbf6
2b1nnR1/RR3pr1/1NKn4/3qRb1B/4rr2/B4b1N/q1QRnPR1/2N2k2 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 Kb4 Kd7 Kc5 Ke6 b4 Kf5 c4 Ke4 g4 h5 g5 e5 b6 a5 d5 a4 d6 a3 b7 h3 g6 h2 d7 h4 b5 a2 b6 h3 g7 Ra4 Qh5 d1N Be2 d2 Bg4 Kd3 Qh6 e4 Qg6 Ne3 Qe6 d1B Ba3 Bf3 Qg6 Rh7 Nd2 Nf6 g8R Nf5 Nb3 e3 Bh5 e2 Nc1+ Kd2 Re8 Ke1 Re5 Kf1 Kb5 e1R c5 Rh4 c6 Ne8 c7 Rg7 Qc6 Re2 Qc2 Nfd6+ Kc5 Qg5 d8R Ree4 Kd5 Nd7 b8R Bg4 b7 Bf5 Kc6 Rhf4 Ra8 Qg2 b8R Nf8 Rb7 Qf3 Raa7 Qd3 Rab1 a1Q R1b4 Qf3 Rd4 Qa2 Rdd5 Qfb3 Rd2 Qd5+ Kb6 Ng6 Qb1 Nf6 Ra4 Bce6 Rg8 Nf8 c8N Nfe8 Raa7 Bd7 Qc2 Bde6 Ka6 Bd7 Nb6 Bc8 Nf3+ Kg2 Re1 h1N Ng1 h2 Nh3 Ng3 Re3 Ne2 Rg3+ Kf1 Rg4 h1B Rg3 Bf3 Rg2 Qd4 Ka5 Nc4+ Kb5 Ncd6+ Kc6 Qdd5+
2k4b/3b2RN/1Bb2P2/b1R4n/2rnB3/B1b1N1RK/Q2rRqpR/1n1b1R2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 c4 a5 f4 g5 Kf2 d5 Kg3 Kd7 b4 e4 b6 d3 b5 d4 b7 a4 h5 e3 f6 a3 h6 d2 h7 e2 c5 e1N c6+ Kc7 f5 d3 f7 a2 Qe2 d1B Na3 d2 Nc4 Qf6 Ba3 Nf3 Rh3 Ba4 Bg2 d1B Ne3 Bb4 f8R Bd7 Rf7 Bc3 Rg7 Nd2 Be4 Nb1 b6+ Kd8 Kg2 g3 Nf3 g4 Ng5 Qd4 Rh2 Nf6 Qc4 Rf8 h8B Nh5 Nh7 Bb5 Qe2 Ra4 Qd2 Rc4 c7+ Ke8 Qc2 Nc6 Qa4 Qc5 Qa7 Nd4 b8R+ Bc8 b7 Bc6 Qa8 Rf6 Qa4 Rd6 Ra8 Rd8 b8R B8d7 c8R Qf8 Rb3 Qf6 Kg1 g2 Ra5 Qf7 Rc5 Ke7 Kf2 g1B+ Kg2 g3 Kh3 g2 Rb2 Bf2 Re2 Bfe1 Rg3 Ba5 Rc7 Bec3 Be5 Qf6 Rb7 Qf8 Bc7 Qf7 Rg7 Ke8 Rb3 Ke7 Bb6 Kd6 Ba7 Kc7 Bb6+ Kc8 Nc2 Bd2 Rbg3 Bdc3 Qb3 Nd2 Rc1 a1B Qa2 Nb1 Ne3 Qd5 Bc2 Qf3 Bd3 Qf2 Be4 Ba4 Rch1 Bd1 Rf1 Nb3 Re7 Bh8 Rf7 B1c3 Rfg7 Nd4 Rhh1 Nb5 Kh4 Be6 f6 Rd2 Rh3 Nd4 Rh2 Nf5+ Kg4 Bd7 Kh3 Nd4+
BBb2K1B/2b1r1NN/n1BP2bB/b3n3/2R2Bn1/1b1R3q/Qp2k2b/1N1r4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 b5 a4 c5 f4 e5+ f6 h5 Kg6 e4 Kf7 h3 d6 b3 a5 e3 a6 e2 f5 Kd3 d7 b2 g5 c4 g6 h2 a7 h4 g7 h3 Ra4 c3 Qb3 b4 Bg2 e1B Qa2 b3 Ne2 c2 Rc4 Bd6 Nd4 Na6 Bc6 Bc7 Ne6 Ke2 d4 Rh7 d5 Ne7 d6 Qh8 d8B Ng6 Bf4 Bea5 Rd1 h1N Rd3 Ne5+ Ke7 c1B f7 h2 g8N Nf2 f6 h1B Ng7 Nfg4 f8B Bd5 f7 Rh1 Nf6 Qh3 Nh7 Rd1 Ke8 Rb8 a8B Rb7 Bfe7 Be3 f8B Bg1 Bf6 Bh2 Ke7 Nd7 Bd4 Nde5 Ba7 Bf7 Bb8 Bfe6 Ke8 Bg8 Bf6 Ra7 Nd2 b1B Ke7 Bc2 Nb1 b2 Nf5 Bc3 B8h6 B3a5 Kf8 Bf7 Bh8 Bg6 Ng7 Bb3 Ke7 Bd8+ Kf8 Re7 Nf6 Bdb6 Nh7 Bc7
k2b1RRq/6B1/1r5R/1N2NN1R/2P3KQ/1Bnr1pr1/1nRR2b1/1r1b1b1r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 a5 b4 g5 h4 d5 c4 Kd7 e4 Kc7 e5 Kb7 e6 a4 e7 a3 e8N a2 h6 d3 h5 d2 h7 d4 h6 d3 b6 Be7 b5 Na6 Bh3 Nf6 Qe1 d1R Bg4 d2 Qh4 Ne4 Ng7 Rb8 Na3 Nac5 Rh2 Nd3 Bb2 Ka8 Rc1 a1R Rc2 Nc3 Bh5 Rab1 b7+ Ka7 Ba1 Nb2 Rf2 Qe8 Rg2 Bd8 b6+ Ka6 Nb5 g4+ Kf2 g3+ Kf3 Qg8 Rh2 g2 Bg4 Ra8 b8R Ra7 Ra8 Kb7 Bh5 Ra6 Bg4 Kc6 b7 Rb6 b8R Bd7 Rc8+ Kb7 Rc6 Qf8 Rf6 Qe8 Rf8 Qe5 Rc8 Qb8 Rc5 Ka8 Rd5 Bc6 Bh5 Rg8 h8R Qc8 h7 Bb7 Ne2 g1R Ned4 Rh1 Nc6 Qb8 Ne5 Qc8 Kg2 f3+ Kh3 f4+ Nf5 f2 Be2 Rg5 Rhg8 Rh5 h8R f1B+ Kg4 Bc6 Rd3 Bcg2 Rh6 f3 Rdd6 Re1 Bd1 Re3 Rhf6 Rh8 Rh6 Rd3 Rh5 Qb8 Rdh6 Rh7 Rc1 Qc8 Bb3 d1B Rc2 Qd7 Rd2 Qg7+ Kf4 Qh8 Rc2 Bh3 Rhd2 Bhg2 Kg4 Rg7+ Rg6 Ne2 Nc6 Na4 Bd4 Nec3 Kf4 Nb2 Rgh6 Rg3 Bg7 Rgh3 Ne5 R3h2 Kg3 Rh3+ Kg4 Rg3+
1Bq4B/2NP1r2/N1n3b1/1Bbr3b/B1rR1r2/k1nQN3/p2K4/B1RBbr2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 a5 g6 h5 b6 f3 g7 a4 b7 f2+ Ke2 f4 b5 a3 b6 f3+ Kd3 a2 Bd2 h3 Nc3 h2 Nh3 h4 Nf4 h3 Ng2 Bf5 Rc1 Ra7 Ne3 Nc6 b8N Nf6 g8B Rf7 b7 Rh4 Na6 Bg6 b8B+ Qc7 Be1 c4+ Kd2 Bh5 Rg1 h1R Rg4 h2 Be2 f1R e5+ Kd7 d6 f2 d5 Qc8 Nb5 c3+ Kc2 Ne4 Nbc7 Rhg1 Bb5 h1B Qd3 Be7 Kd1 c2+ Ke2 Nc3+ Kd2 Bg6 Rd4 Bf3 Bh7 Bfh5 e6+ Kd8 d7 Bc5 Ba4 Ke7 d8B+ Kd6 e7 Rg5 e8B Re5 Bf6 Rhe4 Rb4 Rc4 Bh8 Ref5 Bb5 Rff4 Ra4 Rh1 Bd7 f1R Bg4 Rhg1 Bd1 Rg5 Bg8 Kd7 d6 Rd5 Ne8 Ke6 d7 Ke7 Nec7 Kd6 Bh4 Ne2 B4f6 Nc3 Ra1 c1B+ Kc2 B1a3 Rc1 Bab4 Kd2 Bd4 Nc2 Bf2 Ne3 Bc5 Bd4 R7f5 Be6 Rf7 Beg4 Bg3 Bb3 Bf2 Bgd1 Be1+ Kc2 Rb4 Ng2 Ne4 Bg1 Bb6 Bgd4 Ba7 Ba1 Nc3 Ne3 Rbd4 Nb4 Kc5 Nba6+ Kb6 Rc4 Ka5 B3a4 Bb6 Rc5 Rb4 Rc4 Bc5 Re4 Rc4 Rd4 Be7 Nc5 Kb4 N5a6+ Ka3 Nf5 Bf2 Kd2 Bc5 Ne3 Be1+
3N1R2/P3n1b1/N7/knbn1R1R/n2pb1R1/1R2n2R/BQ2bKr1/B1q3rN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 f4 g5 c4 d5 a4 Kd7 h4 Kc6 f6 Kb6 f5 e5 f7 e4 h6 d3 h7 d2+ Kf2 b3 f6 b2 c5+ Ka5 h5 b5 h6 g4 c6 b4 c7 b3 Ra2 Bb7 c8R Bg7 f8R Nd7 f7 Ndf6 Qe2 d1B Rc3 Qc8 Nh3 Ne7 Na3 b1N Nc2 b2 Rb3 Rg8 h8R Na3 h7 b1N Nb4 Nb5 Na6 N1c3 Qb2 Be2 Raa3 Rb8 Rg1 Qc4 Be3 Rc8 Bd4 e3+ Kg3 Ba8 Nf2 Rc6 Kg2 g3 Nh1 Qc5 Rc8 Re6 f8R Re4 Rc6 Rg4 Re6 Rg5 Re5 Rg6 Rf5 Qc8 Kh3 g2 Kh4 Rg3 Be5 Bf3 Bc4 e2 Bd4 e1N Be5 Rg5 Kh3 Bg4+ Kg3 Nc2 Kf2 Be2 Bd4 Na2 Rh3 Nac3 Ba2 Rg3 Rb3 Ne3 Qc1 Nb1 Ba1 N1c3 Qb2 Qc4 Rd1 Qc5 Rd4 Qa3 Rg4 g1B+ Ke1 d4 Rhh5 Bh2 Kf2 Rg1 Rh3 Bd6 Rhh5 Bc5 Rh3 Kb6 Rhh5 Nfd5 a5+ Kb7 Rh3 Na4 Rgg5 Bh5 Qc3 Be5 Nb4 Be2 a6+ Kb6 a7 Nf4 Na6 Qc1 Qb2 Ka5 Rgg3 Rg6 Rgg5 Rg7 Rhg8 Bf6 h8N Be4 Rgh5 R7g3 Nf7 Nfd5 Rg4 Bg7 Nd8 R3g2+
kq1Rrn2/r2bb3/B1N5/4n1N1/2qr1pQ1/P1NNB3/RqNKN2r/1q1R4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Kd7 e4 b5 d4 f5 h6 g5 h5 c5 d6 Kc6 e5 Kb7 d5 b3 a3 f3 e6 f4 e7 c4 e8R f2+ Kd2 b2 d7 c3+ Kd3 c2 h7 b4 d6 b3 h6 g4 Qe2 g3 Ra2 g2 Kd2 Ne7 Nc3 b1R Qg4 b2 Nge2 Nbc6 Rg1 Qc7 Rd8 Ng6 Rh1 Rg8 h8N g1R h7 Qb8 Nf7 Ra7 h8N Ka8 Ng5 Rg2 Nhf7 Be7 Ne5 Rh2 Nd3 Nce5 Bg2+ Bb7 Rd1 f1Q Bc6 Ra1 Bb5 b1Q Ba6 Qg2 Ke1 Bf3 Be3 Bc6 Kd2 Qf2 Rf8 Bb5 d8N Bd7 Nde6 Qg2 Rd8 Re8 Nd4 c1Q+ Ke1 Qd5 Nc2 Qcb2 Kd2 Qe4 Qf3 Nf8 Qg4 Ba4 d7 Qc4 Rc8 Bb5 d8N Bd7 Nc6 Qbb5 Ndb4 Rh7 Ke1 Rh2 Rd8 Qbb3 Rc1 Rb1 Nc2d4 Rb2 Rd1 Rd2 Ndc2 Rd4 Nd3 Qb1 Kd2 Q5b2
N1BKN3/rnBRB3/qnqpr2q/2QPn1BR/2rr2k1/1n6/N6B/3b3B w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kf6 Kg4 a5 d4 h5+ Kf3 Kg5 Ke4 f5+ Ke5 c5 Kd6 a4 g4 c4 e4 a3 e5 c3 b7 a2 e6 h3 d5 h2 e7 c2 e8N h4 b6 h3 b5 Qf6+ Kc7 Rh6 Qe1 Ra7 Bd3 Ne7 Be4 Nbc6 Qa5 Ng6 Ne2 Nge5 Nd2 f3 Nc3 f2 Nc4+ f4 Bd2 Kh4 g5 f1Q g6 c1R g7 f3 g8B f2 Bg5+ Kg4 Qb4 Rd1 Qc5 Na5 Rc1 a1N Na2 Qe6 Kd8 N1b3 b8B Qc6 b7 Re6 b6 Rd4 Bd6 Qd3 b8B f1N b7 Ne3 Nb6 Qa6 Rcf1 N3c4 Na8 Nb6 Bbc7 Rc4 b8B Rd4 Bde7 d6 Rf7 Bd7 Rh7 Rc4 Rh5 Rd4 Rf1 h1Q Rf7 h2 Bgh7 Qc1 Bg2 h1R Bf5+ Kg3 Bge4 Rh4 Bh1 Rc4 Rfh7 Rhd4 Bh3 Rh6 Rg7 Bg4 Rf7 Bd1 Bc8 Re6 Rfh7 Rb7 Ba7 Kg4 Bf8 Qb1 Rd7 Qg6 Bfe7 Qh6 Qa3 Na4 Bab6 Ra7 Qb4 Rd2 Bg1 Nb6 Qc5 Rdd4 Bh2 Nb7+
3B1q2/3q2n1/2B2bp1/3PK3/n1rN1Q2/krbbp1Rn/qNBNN2N/N6R w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 h4 e5 d4+ Kd6 f4 b5 a4 c5 f6 g3 h5 c4 f5 g6 f7 c3 f6 g2 a5 c2 h6 b3 h7 b4 a6 b2 a7 b3 Nd2 b1N Qg4 b2 Qf4 Qe8 Ra3 Ne7 Ne2 g1B Rg3 Bg7 f8N Qd7 f7 Ba6 Ne6 Bf6 f8N Nf5 Nc5 Nc6 Ncb3 Rb8 a8B Nce7 Bc6 Ng7 Na1 Rb3 Ne6 Rc8 h8N Bc4 Nc5 Nc3+ Kf3 b1Q Na4 Bf2 Nb2 Na4+ Ke4 Be1 Bg2 Qa2 Nf7+ Kc7 d6+ Kb6 Ng5 Ka5 Bf1 Kb4 Ngf3 Nd5 Nh2 Ka3 Bh3 Rc7 Bf5 Ba6 Qf2 Nf4 d5 Nh3 Qf4 Qe6 d7 Bd3+ Kf3 Qe8 d8N Qf8 Ne6 e4+ Ke3 Rc8 N6d4 Rc7 Ndf1 Rc8 Bd2 Rc7 Ba5 c1Q+ Nd2 Qcc5 Bb6 Qce7 Ba5 Rc8 Bd8 Qd7 Qe5 Nf2 Kf4 e3 Qb8 Ba6 Bc2 Bd3 Bb7 Rc4 Bc6 Be7+ Ke5 Nh3 Nd2f3 Bc3 Nd2 Bh4 Qd6+ Rcb4 Qf6 Rc4 Qf4 Bf6+
q1q1n1B1/2Np3R/1bQ1R2B/2pRN3/1P1n1rRr/nq2N2R/k2K1Rb1/6r1 w - - 0 1 illegal: No proof kernel
N1Q2K2/p1B1n1B1/B5R1/1B1q1r2/B2prnRq/1b3P2/1bRB1b2/1N3rnk w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 e5 c4 h3 g4 h4 b4 e4 b6 h2 c5 e3 f3 Kg5 c6 Kf4 b5 Kg3 c7 d6 b7 e2 b6 e1B g5 h3 f6 d3 f7 d2 g6 Bg7 f8B Be5 g7 Bd4 Qc2 d1R Ra6 Be5+ Bd2 Bb2 Bb5 Kg2 Ne2 Nc6 b8B Ne5 b7 Nd3 Nec3 Rh4 Na4 Re4 Nb6 Nf4+ Kc6 Bf5 c8B d5 Bc7 d4 b8R Be6 Bb7 Rc1 Rc8 Bf2 Kc5 Qg5+ Kd6 Ne7 g8B Rf1 Bg7 Bb3 Bf7 Rb8 Na8 Qh5 Rg8 Rf8 Bfe8 Rf5 Ba4 Qf7 Beb5 Qc4 Kd7 Qd5+ Ke8 Rc1 Rd1 h1Q Rf6 h2 Kf8 Qe1 B7a6 h1N Qc6 Ng3 Qe6 Nge2 Qc8 Qh1 Rg1+ Kh2 Rg6 Rf1 Rf7 Ng1 Rff6 Rg5 Rc6 Kg2 Rc2 Qh4 Rh8 Kh1 Rh5 Rge5 Rhg5 Ree1 Rg2 R1e4 R2g4 Rf5+
n2NBk1B/1p1r1B2/q1Nr1PB1/1RK2bB1/1R2Qn2/p4r1n/1n4R1/2b1nB2 w - - 0 1 illegal: No proof kernel
RNR1b2r/N1NnN2n/1pP1B1B1/2n2qr1/2bn1B2/2KrQ1pN/k1N4b/8 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 h4 g5 c4 d5 f4 e5 a4 g4 c5 b6 f6 Ke6 a5 b3 f7 d3 h6 b2 h7 g3 h5 e4 a6 e3+ Kc3 d2 h6 e2 a7 e1N f5+ Ke5 f6 Bh3 Na3 b1B Bd3 Bg4 Qb3 d1R Nc2 Be2 Bg6 Bc4 Nh3 Nd7 Bf4+ Ke6 c6 Bc5 Ra2 Rc8 a8B Qf8 Bb7 Bg1 Ra8 Nf3 Ba6 Rc7 Bc8 Bh2 Qa3 Ra7 Qc5 Ra5 Qe3+ Ne5 Rf1 Kd6 Rf2 Nc5 Be6 Qc8 f8N d4+ Kb2 d3 f7 d2 Nd7 Qf8 Nb8 Nf6 Kc3 Qc8 f8N Bba2 Bg8 Qf5 Ne6 Kd5 B8f7 Ned7 Rf1 Re8 h8N Nh7 Bg8 Bab3 Nf7 Rd8 Rf2 Rh1 Nd6 d1N+ Kd2 Ba2 Nc8 Nc3 Na7 Ne2 Rf3 Nd4 Kc3 Rd1 B8f7 Rh8 Rf2 Nb7 Nc7+ Kc5 Bg8 Bf7 Rf1 Be8 Be6 Bc4 Rh1 Nhf6 h7 Rd3+ Kb2 Rf8 h8N Nh7 Bh5 Rg8 Ng6 Rf8 Ne7 Rh8 Na3 Kb4 Nc2+ Ka4 Bg6 Nbc5 Rf1 Rd1 Kc3 Rb5 Ne1 Ka3 Nc2+ Ka2 Be5 Qg4 Rf8 Qf5 Bf4 Ra5 Rg8 Rd3+ Kb4 Qf6 Bh5 Nb7 Bd5 Bg6 Rc8 Be8 Be6 Rg5 Bhf7 Qf5 Bg6 Rd2 Kc3 Nbc5 Nf2 Rd1 Nh3 Rd3+
N1R1r2N/k3Pr2/1b3p1N/B1r2b1n/q2N4/pRnQn3/RbKn3N/3B3N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 g4 a5 e4 h5 d4 c5 Kd2 Kc7 d6+ Kb6 g5 f6 d5 c4 d7 c3+ Kc2 f3 e5 f2 d6 h3 g6 h4 e6 h2 g7 a4 e7 h3 Nf3 a3 Ra2 Qc7 d8R Kb7 d7 Qd6 b6 Ra4 b5 Na6 Be2 f1N Qd3 Nh6 g8N Qb4 Bd1 Ng4 Nh6 Ra5 Nbd2 Nc7 Ne4 Nd2 Ng3 Nd5 Re8 Kb8 d8N Bf5 b7 Ka7 b8N Qf4 Rf1 h1R Nd7 h2 Ndf7 Bg7 Rb8 Re8 Nh8 Rg1 Nb6 h1N Rf2 Qc4 Rb2 Qa4+ Rb3 Rg2 Bb2 Rg1 Na8 Nge3+ Kc1 c2 Rc8 Nc3 b6+ Kb7 Nh2 Rc5 Qe4+ Ka6 b7 Ka7 b8N Bf8 Qd3 Bg7 Ng8 Bh6 Ba1 Bf4 Nh6 Bc7 Re2 Bb6 Nc6+ Kb7 Nd4 Ka7 Nh5 Rg4 Ng3 Rg7 Rf2 Rf7 Rg2 Nf2 Nh1 Nfe4 Rf2 Ng3 Re2 Nb5 Bc3 Nh5 Ba5 Nc3 Rf2 Nde4 Qc4 Ng5 Kd2 Nge4+ Kd3 c1B Ra2 Bb2 Qb5 Ng2 Kc2 Nd2+ Qd3 Ne3+
1r4q1/1NqN2kN/5Rqr/3B3n/1Rq3QN/3P1Kbp/pNbR4/2N2qBn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 b4 f5 e4 Kf7 g4 a5 b6 h5 g5 f3 g6+ Kf6 e5+ Kg7 d3 a4 b7 f4 d6 h3 b5 c4 b6 c3 d7 a3 e6 a2 e7 h2 Bg2 c2 Nc3 h4 Nge2 h3 Rf1 h1Q Be3 c1Q Na4 Qcc7 Nb2 Nh6 Nc1 Nf5 Rb1 Qe8 d8N Nd7 b8N Nf6 b7 Nh5 Nd7 Nfg3 b8R Rh6 Rb4 Rb8 Nb7 Qh2 Qe2 Qc4 Rd1 Qef7 Rd2 Qfe6 Rb6 Qg8 Rf6 Nh1+ Kf1 f2 e8N+ Kh8 Bd5 Bd6 Qg4 Qg3 Ke2 f3+ Kd1 Bf4 Ned6 Kg7 Bc5 Qh2 Be3 Bg3 Nf5+ Kh8 Nh4 Kg7 Ndc5 Be6 Nd7 Kh8 g7+ Kh7 Re2 f1Q+ Kd2 Bf7 Bg1 f2 Ke3 Qfg2 Rd2 Be8 Ke2 f1Q+ Ke3 Qf7 g8N Qg6 Rf3 Bf7 Ngf6+ Kg7 Nh7 Bg8 Rf6 Be6 Qg5 Bg4 Qf5 Bd1 Qg4 Bc2 Nd1 Be1 Rb4 Qhc7 Nb2 Bg3 Bf2 Qgg1 Kf3 Qe1 Bd4 Qe8 Be3 Qg8 Bd4 Qe1 Bg1 Qf1+
Q5RN/3P4/NnrRRB2/bBn4k/n2K1p2/1Rqn2R1/2pB2rq/nb4R1 w - - 0 1 illegal: No possible last move, all moves rejected
rB1R1n2/bP1r4/4Brr1/B3QBn1/1K2bp2/2Nk3B/N1N1rpq1/q3R1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 e4 a5 g5 h3 b6 c4 b7 f3 b5 a4 g6 f4 b6 a3 g7 h2 Be3 h4 Bh3 a2 Qe1 Qe8 Na3 Qg6 Nc2 Rh6 Ne2 Qg2 Kb4 c3 Rd1 a1Q Bg1 Nf6 g8B Nh7 Bge6 Rg6 Rd2 Nd7 b8B+ Ke7 d6+ Kf6 b7 Ng5 d5 Ke5 Bhf5 h3 Rd1 Bg7 Rd3 Nf8 d7+ Kf6 d6 Ke5 d8B Rf6 Ncd4 c2 Nc3 c1R Ba5 Rd1 Nc2 Rd2 Qe3 Re2 Rd4 Rg6 Rd1 Bf6 Rd3 Bd8 d7+ Bc7 Rd6 Bb6 d8N Ba7 Nc6+ Kf6 N6d4 Ke5 Na2 Bd7 Nb5 Bc6 Nbc3 Bd5 Bf2 Rf6 Rb1 h1R Re1 h2 Bh3 Rf1 Bg1 h1R Bhf5 Rh7 Rd8+ Rc7 Bh3 f2 Bef5 Rd6 Be6 Rcd7 Qc5 Kf6 e5+ Kg6 Qb5 Be4 Qd5 Rf7 Qb5 Rf6 Qd5 Rd7 Bef5+ Kh5 e6 Kh4 e7 Kg3 e8B Kf3 Rc1 Rd1 Qe5 R1d6 Re1 Rg6 Bf7 Rdf6 Nd4+ Ke3 B7e6 Kd2 Nc2 Kd3
K2R2q1/R5Bq/R4b2/qq1rrBn1/k1N3b1/P1R1n1R1/ppRN4/Q1n4N w - - 0 1 illegal: No proof kernel
1R1B3q/BN4b1/k2r4/BNq1BRP1/1nq3Q1/B1p1N2q/bK2r1p1/2n2b1B w - - 0 1 illegal: No possible last move
R1Rb2R1/4N1n1/N1B5/1r1bBpkn/1P1N4/KN3rpQ/1n2nNqq/2Nb4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Ke7 Kd2 Kf6 Kc3 c5 Kb3 g5 h4 a5 e4 g3 e5+ Kf5 d6 c4+ Ka3 c3 b4 c2 h5 g2 h6 a4 d7 f6 e6 g4 e7 g3 e8N f3 h7 f2 d5 Nh6 b6 Be7 b7 Rf8 h8R Ra5 d6 Rb5 Nd2 Kg5 Ne2 g1N Bb2 c1N Bg2 f1B Bc6 Nf5 Nb3 Nd3 Rg8+ Ng7 Rhh8 Bg2 Be5 Nb2 Nec1 Bd5 Qf1 Ne2 Qh3 Qa5 d8N Qa8 Ra2 Nd7 b8N Rf7 Na6 Rf8 Nb7 Bd8 N7c5 Bb7 Nec7 Bf3 Be4 Bd5 N5d3 Qc6 Ra1 Bh5 Nf2 Qc2 Ka2 a3 Bg2 Qe4 Bh1 Qg2 Ne6+ Kg6 Nd4 Kg5 Ncd3 Rf7 Rc1 Bhf3 Rc8 Rf8 Nc1 Qh2 Kb1 a2+ Kc2 a1Q Ra8 Nc5 d7 Ne6 Bg2 N6f4 Rc8 Bc7 d8N Qa2 N8c6 Bd8 Ne7 Nh5 Ra8 Qa5 Bh1 Qc7+ Kb1 Qc2+ Ka2 Qe4 Ka3 Bg4 Rh7 Qeg2 Rh6 f5 Rc6 Re8 Ng6 Re7 Rcc8 Rc7 Ne7 Rc3 Nec6 Nef4 Ne7 Bd1 Rc4 Ne2 Rcc8 Qgg1 Bf3 Qgg2 Be4 Bb7 Bc6 Rf3 Be8 Be4 Bc6 Bd5
1qrn1q1R/NNk3N1/R5p1/brB4K/1q1BqRPp/3r3R/2bnQRR1/8 w - - 0 1 illegal: No possible last move, all moves rejected
5B2/qBn3Q1/1B1Rp3/r2R3q/n3kP1B/B2Nb1pN/KRbr2r1/4n1Bn w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 h4 Kd7 b4 Kd6 f4 a5 d4 g5 Kd2 c5 Kc3 a4 Kb2 e6 h5 g3 h6 e3 b6 g2 b5 g4 h7 c4 b7 c3+ Ka2 e2 b6 e1N Ba3+ Kd7 d6 Kc6 d7 Kd5 Ba6 g3 Rh5+ Qg5 d8B c2 Qg4 Nf6 Nh3 g1R Nd2 Ne4 Rd1 Bc5 Nc4 Bd7 Nb2 Rg2 Nd3 Nf2 Bf6 Rd8 h8B c1Q Bhg7 Qe3 Bf8 Ke4 d5 Nh1+ Rd2 Qf2 d6 Be3 Bd4 Qh6 Rd5 Qh5 Qg7 Be8 d7 Bg6 Bf6 Qg1 Bh4 Bh7 Bb5 Na6 b8R Nc7 b7 Ra5 Ba6 Bg6 Rb2 Bf5 Rc8 Bh7 b8B Qf2 Bab4 a3 Bb7 Bf5 Ba7 Bg6 Kb3 a2 Ba3 a1N+ Ka2 Nb3 Bd4 Bh7 Ra8 Bf5 Ra6 Nc5 Rad6 Na4 Bb6 Bg4 Ba7 Bd1 Bd4 Bc2 Bb6 Rc8 d8B Rb8 Bdf6 Rd8 Bfd4 Qfe2 Ne5 Qa6 Nd3 Qa7 Bdc5 Bd2 Bf2 Be3 Bg1 Qe8 Rd4+ Kf5 Rd7 Qh5 Nb4 Re8 Rd8 Re7 Rd2 Rd7 Rd4 Rdd5 Rd6 Rdc5 Rd1 Rc4 R1d5+ Ke4 Rb3 Rd4 Rb2 Rd1 Nd3 Rdd2
Rn2qNrB/2B1N1NK/3pQ3/3NN3/1q1qNb1R/2nPbp2/1q1Br3/1k5b w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 exf4 gxh5 c6 b4 Qb6 Bg2 Qd4 b6 Rh7 b7 Qe5 b5 Qc7 b6 Rh8 Be4 Qd8 Bd3 Rh6 Bc4 Rh8 Bb5 cxb5 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 e4 Kd4 Kf5 a5 h4 g5 c4 Kd3 c5 f6 Kg6 f5 e5 f3 c6 b4 e6 d6 e7 g4 e8N b3 c7 b2 h6 f4 h5 a4 h7 g3 h6 a3 Ng7 g2 Rh4 f2 Nf3 g1B Qe1 Kc2 d3 f1Q Nfd2 a2 Ne4 Nf6 Nbc3 b1Q Nd5 Qb2 Bd2 Rg8 h8N Be3 h7 Qe8+ Nf7 f3 h8B Bh3 c8N Bg2 Nce7 Bh1 Qe2 Qfb1 Qe1 Qb4 Qe2 Q1b2 Qe1 Ng4 Kh7 Nf2 Ne5 Nd1 Qe2 Nc3 Qe1 Na6 b8N Ra7 Nbd7 Nb8 b7 Bf4 Ngf5 B8h6 Nf8 Be3 Ng7 Bhf4 Qg1 Ra6 Qg6 Ra3 Qe6 Rb3 Re1 a1Q Rg1 Qa7 Ra1 Qad4 Ra6 Kb1 Ra8 Na6 b8B Ra3 N7c6 Ra2 Bc7 Nb8 Nce7 Q2b3 Bc1 Re2 Bd2 Qb2
1B3BNB/rQ6/1ppn4/1qqBn2N/r4RRB/r2n2n1/KPkb3N/b5B1 w - - 0 1 illegal: No possible last move, all moves rejected
2qR3N/3Bn1p1/R1P4n/N2r1r2/NNp1K2b/N1Nn2q1/rRQ4r/2Bb2k1 w - - 0 1 illegal: No proof kernel
2b2k2/Bn1pN1nb/3rqB1B/R1P1rB2/B2p1bR1/1N3Q2/R2Bq3/1b4rK w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 h5 c4 a5 g4 e5 f4 h3 Kf2 e4 f6 h4 g5 a4 f5 a3 b6 h2 Kg2 a2 b5 e3 b7 e2 f7+ Ke7 g6 e1Q b6 Ra4 c5 Qe3 f6+ Ke6 g7 Qf4 Nh3 Qf5 Bd2 Qc7 Rg1 Qce5 Bb5 Qe2+ Kh1 Ne7 g8B Nbc6 b8R Rh5 b7 Bh6 Rg4 Ra6 Bh7 Nd8 f8B Kf7 Bg7 Bf4 Ra8 Rd6 b8B Nb7 Ra5 Qfe6 Ba7 Re5 Ba4 Nf5 Bh8 Ke8 f7+ Kf8 Bf6 Ng7 Bf5 Qb5 Kg2 h1B+ Kg1 Bd5 Qf3 Be4 Kg2 Qe2+ Kh1 Bg3 Nf4 h3 Nd5 h2 Ne7 Bf4 Bc3 Bd3 Nd2 Bb1 Nb3 Qe4 Kg2 h1B+ Kg1 Bg2 Bd2 Bf1 Kh1 Bfd3 Bc3 Qe2 Bd2 Bbc2 Rc1 Bb1 Rc2 a1R Ra2 Qd5 Be6 Bh7 Bf5 Ne8 Bh4 Qe6 Bg5 Kg7 f8B+ Kf7 Bfh6 Ng7 Bh4 Kf8 Ra3 Ra2 Bf6 Rc2 Ra2 Rc3 Qd5 Rg3 Qf3 Rg1+
1r4B1/NP2qRqK/B3r2N/1q1n2Np/n1k2rNB/3NQ1pN/8/Rb2b2r w - - 0 1 illegal: No proof kernel
2rk1BB1/1p2rp2/Bb3QP1/Nb1qn1B1/2n3R1/2NR1q1q/1B1Bb2R/5b1K w - - 0 1 illegal: No possible last move, all moves rejected
2n3BK/QbnrN3/qnBBb2B/2R4B/b3r3/1N2p1P1/2R1p1Rn/b5Bk w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 b4 Kg6 c4 Kf5 f4 e5 g6 d5 g7 h5 c5 a5 c6 e3+ Kd3 a4 c7 a3 b6 a2 b5 h4 g3 e2 b7 Kg4 b6 h3 f5 h2 f6 Ra7 f7 Rh4 Nc3 Be6 c8B Qf6 Qd2 Na6 b8R Nc7 b7 Ne7 g8B Bg7 Bd7 Nc8 f8B Qh6 Rb1 a1N Rb2 Nb3 Bc6 Na5 Bc5 Nc4 Qe3 N4b6 Rc2 Bh8 Nf3 e4+ Kd2 d3 Nd4 Bg7 Rg1 h1B Nb3 d4 Rg2 Kh3 Nd5 Rg4 Ne7 Bf6 Ke1 d2+ Kf2 d1B Ra8 d3 b8B Rb7 Ra5 Ba1 Qd4 Qg6 Bh6 d2 Ke3 Rh4 Bd6 Qf6 Ba7 Rg4 Rac5 Rh4 Rg1+ Kh2 Bh3 Bf3 Rg2+ Kh1 Bg4 Qg6 R2c3 Bc2 Kf4 d1N Ke5 Ne3 R3c4 Nf1 Bh5 Nh2 Rc3 Nb5 Qf2 Rd7 Qd4 Bd1 Rc1 Nc7 R1c2 Qg4 Kf6 Qf4+ Kg7 Qf6+ Kh7 Rg4 Be3 Rf4 Bg1 e3 Bb8 Qg6+ Kh8 Qd3 Qg7 Re4 Bf4 Qa6 Bh6 Nb5 Bd6 Nc7 Ba4 Rg4 Bb5 Bb7 Bc6 Re4 Qb2 Nf3 Nd4 Nh2 R2c4 Ng4 Qa3 Qb5 Qa7 Qa6 Rc3 Ba4 Rc2 Re5 Nb3 Nh2 Kg7 Re4+ Kh7 Re5 Kh8 Re4+
n1bkn2r/1B1n4/b1r3Bb/1N3PNb/nq1Qp2K/NR3R1N/3N2Np/4B3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 a5 f4 e5 Kf2 h5 b4 a4 f6 h3 Kg3 d3 f7+ Ke7 g5 h2 b6 d4 g6 a3 b5 d2 c5 a2 g7 d3 b7 Qb6 c6 Kd8 c7+ Ke7 Nh3 Ra5 Na3 Bf5 c8B Qf6 b6 Rb5 Rb1 a1N Rb3 Qe6 Kh4 Na6 b8N Nc7 b7 Rc5 Nd7 Nf6 g8N+ Kd8 b8N Qe7 Na6 Nfe8+ Ndf6 Na8 Nh6 Rc6 Bb7 Bc8 Nc7 Qb4 Nf5 Bh6 Qg4 d1B f8N d2 Ne3 Be2 Ng2 d1N Ncb5 Nb2 Ne4 Na4 Nd2 Bc4 Rg1 h1B Nh7 Be2 Rf3 Nb3 N7g5 Nbc5 f5 Bd3 Be2 Nd7 Qd4 e4 Bb2 Bc4 Bc3 Bd3 Rb1 Bc4 Kg3 h4+ Kg4 Bd3 Bd1 Bf1 Bb3 Bd3 Bf7 Be2 Rb3 Bf1 Nf2 h3 Bg6 h2 Nfh3 Bc4 Ne1 Bg2 Kh4 Bgf1 Ng2 Bce2 Ndc4 Bd1 Be1 Bd3 Nd2 Bc4 Nc7 Ba6 Ncb5 Be2 Rfd3 Bg4 Rf3 Bh5
kN1R3B/1b3pK1/2BQBb1n/b1R3Nq/1r1R1RRr/5r1p/1r2RP2/6qr w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra4 Na6 Ra2 Nb4 Ra3 cxd4 Ra1 d3 Bg5 d4 Bc1 Nd5 exd5 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 Kd7 c4 Kc7 b4 Kb7 g4 a5 c5 e5 g5 h5 c6+ Ka7 c7 h3 d6 e4 g6 h4 g7 h2 b6+ Kb7 b5 h3 d7 a4 Bg2 a3 Bb2 a2 Ne2 Qf6 d8R Rh6 Nbc3 Ra3 Re1 h1R Rc1 Bd7 c8B+ Ka8 b7+ Ka7 b8R Bc6 Be6 a1Q b6+ Ka6 b7 Ka7 Rd6 Qf5 Rbd8 Be7 b8R Qh5 Rb4 Bb7 Rd5 Rh7 Rc5 Nh6 g8R Rb3 Rg4 Rh8 Rbc4 Rb4 Rf5 Qb1 Rff4 Qa1 Na4 Rh7 Ng1 Rh8 Re2 e3+ Ke1 Qb1 Nc5 d2+ Kf1 d3 Na6 Qa1 Nb8 Ka8 Bc6 Rh7 Bh8 Qb1 Qe1 d1R Rcd4 Rd2 Qd1 Rdb2 Rc3 d2 Rc5 Rh2 Nf3 Rh1+ Rg1 Qbg6 Ng5 Qg8 Qb3 Qg7 Qd5 Qgg6 Qd6 d1R+ Re1 Rd3 Re2 Rh2 Rgg4 Ra3 Rec2 Rh1+ Ke2 Rab3 Kf3 e2+ R5c3 e1B Re2 Qg8 Ke4 Bd2 Rc2 Rf3 Ke5 Qgg6 Rc3 Qb1 Rc5 Qg1 Bed7 Rb5 Bc8 Ba5 Be6 R5b4 Rcd5 Nf5 Rde4 Qg6 Red4 Rh4 Rb5 Qh5 Rc5 Bf8 Kf6 Nh6 Rdd5 Be7+ Kg7 Qb1 Rd3 Qg1 Rdd4 Bf6+
1B1Q1RRB/1bpK4/B1PNB1p1/2b1b2r/3NBB1b/r6n/2b1Nn2/3r1k1r w - - 0 1 legal: proof: g4 b5 d4 e5 a4 exd4 axb5 g6 g5 Qe7 h4 Qf6 h5 Qg7 h6 f6 hxg7 fxg5 Rh6 g4 Rh5 Ne7 Rh1 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 Kf5 c4 h5 e4+ Kf6 f4 d3 b4 h4 f5 h3 c5 d2 b6 Kg5 b5 Kf4 b7 Ke3 e5 Kf2 e6 g3 f6 h2 e7 g2 e8B a4 f7 a3 b6 a2 Ne2 g1B Na3 Be7 f8B Nc6 b8N Bh4 b7 Nh6 g8B Nd4 Nc4 Nf3 Be6 Ng4 Bg7 Ng5 Nd6 Ra3 Nc6 Nh3 b8B Bb7 Be5 Rh6 Bh8 Rh7 Rb1 a1B Rb4 Be5 Rf4+ Rf3 Rf8 Rh5 B8f7 Ra3 Bg2 Rg3 Be4 Ra3 Bd3 Kg2 Ba6 Bgd4 Bf5 Ngf2 B7e6 Be3 Rf1 h1R Rg8 B3d4 Qc2 d1B Bf4 Be3 Qd3 Bc2 Qd1 Nd3 Rf3 Ndf2 Qd2 Kf1 Be4 Bc8 Ncd4 Bb7+ c6 Ng5 Nf7 Nh3 Bg4 d6 Ke6 d5 Nd6 Bhf6 Nb3 d4 Kd7 d3 Be6 Bc5 Nbd4 Bh4 Bg3 Bg7 Rff8 Be5 Qg5 d2 Bf4 d1R Qf6 Ng1 Qd8 Ngh3
3R4/1n4Rr/1NnR1R2/3KpRp1/P4RbQ/1b1pqNnr/5B1b/kBB3r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 a4 g5 f4+ Ke4 h4 b6 f6 b3 f5 d3 h6 b2 h7 d2 h5 e6 h6 d6 f7 Qe8 f6 Nc6 Qh5 d1B Na3 b1N Nf3 Nge7 c3 Bg7 f8R Nf5 f7 Be5 Qh4+ Bf4 Rg8 Ng3 f8R Ra7 Rf5 Qe7 Rg7 d5+ Kb5 d4 c4 Bc2 c5 Bb3 Nc4 Nd2 Bh3 Kd3 Rf1 Kc3 Rd1 Rg8 h8R Nde4 h7 Kc2 Ra2+ Kb1 Rf2 Ka1 Rff1 Re8 Rhf8 Rd7 R8f7 Rh8 R7f6 Be5 Rf4 Rb7 Bf5 Nd6+ Ka6 b5 Nb6 b4 Bb1 Bd7 R6f5 Rc7 Rd3 Nb7 Kb5 Be8 Rf6 Bh5 Rd2 Bg4 Rdd1 Bc2 Kc4 b3 Rd2 b2 Rff2 Na7 c6 Qa3 R6f5 Qe3 Rf1 Rf7 c7 Nc6 c8R Rd7 Rd8 d3 Rdf2 Nh5 Rd4 Bh2 Rd6 Ng3 Rf6 Rf8 h8B Re7 Rgg6 Rh7 Rf5 Bd1 Bd4 e5 Rg7 Rfh8 Kd5 Bc2 Ng1 Bcd1 R2f4 Bc2 Nf3 Bb3+ Nc4 Qd2 Bf2 Qe3 Bc2 b1R Rff6 Rb2 Bb1 Rd2 R4f5 Rd1 Qh3 Nb8 Ng1 Qd2 Be3 Nc6 R1f4 Rh4 Bf2 R8h7 Nf3 R4h6 Qh5 Qe3 Qh3 Rg1 Qh5 Bd1 Nb6 Bc2 Qe8 Rh4 Qh5 Rh3 Qh4 Bb3+
1r3R2/1NR1B2k/2n1pnp1/2Pp2b1/Nr4Rb/3b4/R1BR1R1n/qr1KQ2B w - - 0 1 illegal: No possible last move, all moves rejected
5NNk/1n1n1bp1/K6B/1n1rN3/2BRrN1P/p1r2p2/1NqR1Q1b/1b3B1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 Kc4 Kf7 e4 g3 b4 a4 h4 g2 e5 a3 d6 f3 d7 f4 d5 f2 b6 f3 Kb5 c4 e6+ Kf6 e7 c3 e8B c2 d6 Na6 b7 Qc7 d8N Be7 b8N Bd7+ Nbc6 Be6 d7 Rc8 Nc3 Qh2 Qd4+ Kf5 Nd1 Bf8 Ra2 Bd6 Ne2 g1R Nf7 Kg6 d8N Kh7 Nh6 Rg6 Nb2 Bb3 Ne6 Rg5+ Ne5 Nf6 Bf7 Rc3 N6f4 Re8 Ng8 Nd7 Ng3 Kh8 B7c4 Nac5 Be3 Nb7 Ka6 c1N b5 Ne2 b6 Re6 Rg1 Bc2 Nh1 Bb1 Rg4 Bc7 Qc5 Nd4 Bd2 Nb5 Be3 N7d6 b7 Re7 b8N Nb7 Nbd3 Bd6 Rd2 Re8 Nb2 Re6 Bh3 f1B Qa7 Bfd3 Bf1 Bg6 Qc5 Bf7 Qd4 Nb6 Nbd7 Qf2 Nf8 Nd7 Ng2 Rh5 Bh6 Qe2 Qa7 Qe4 Qg1 Qc2 Rgd4 Re7 Qf2 Bb8 Ned3 Bh2 Ngf4 Rd5 Ne5 Re8 Ned3 Re2 Ne5 Re4
2Nbr2k/2N1R1rN/5N1p/1pRP1N1R/3n1p2/1N1B4/Q2bqB1K/4qbqn w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 b5 e4 f5 d4 Kf7 g4 Kg7 Kg2 c5 a4 b3 g6 h6 a5 b2 a6 c4 d6 f3+ Kh2 f2 d5 c3 d7 c2 e5 f4 g5 Qe7 d8R Rh7 e6 Bd7 a7 Qb4 e7 Bc6 e8N+ Kh8 Qd2 Rc7 g7+ Kh7 Nf6+ Kg6 Bd3+ Qe4 Re8 f1Q Re7 Qe1 Nh7 Rd7 Nf3 Nf6 g8N Nh5 Ngf6 Ng3 Nd4 Bb7 Qe2 Nc6 Be3 c1B Nf5 Re8 a8N Nd4 Nd2 b1Q Nb3 Bd2 Nc7 Bc8 Bf2 Qbd1 Rc1 Qf3 Re3 Rg7 Rc5 Be7 Re6 Bd8 Re7 Bc3 Qa2 Qfe2 Ne4 Bd7 Ned6 Bd2 Nc8 Qc1 Re5 Kf7 g6+ Kg8 Re7 Qb1 Nh4 Bh3 Nf5 Rf7 g7 Bf1 Rg1 Nh1 Rg5 Rf6 Rh5 Rg6 Re5 Kf7 g8N Rg7 Ngf6 Qbc1 Nd7 Kg8 Ndf6+ Kh8 Re7 Qa1 Qb2 Qa7 Qa2 Qb6 Ne4 Qg6 Nef6 Qg1#
R1BB1B2/rbq1B3/npq1KbpN/N1p4P/3r2n1/3BQb2/4R2n/B4kN1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 g3 h4 b3 f4 e6 d4+ Kb4 a4 c5 f6 g6 h5 g2 f7 b6 f5 b2 a5 Qd7 a6 Qe7 a7 Bg7+ f6 Rh7 f8B Nh6 d6 Rh8 d5 Qd8 d7 Bb7 d6 Na6 Bd3 Qc7 Nd2 Kc3 d8B b1B Bfe7 Re8 Qe2 Ng4+ Kf4 Kd4 f7 Bf6 f8B Kc3 Nb3 e5+ Kg3 e4 Kf4 e3 Rh2 Ba2 Na5 Bad5 Qf3 e2 Qe3 Qc6 d7 e1Q Ra2 Bf3 Bb2+ Kb4 Ba1 Qd2 Nh3 g1N Re2 Qb2 Ra4+ Kc3 Ra2 Bd5 Ra4 Nf3 Ng1 Nfh2 Ra2 Bf3 Ra4 Rc8 a8B Rc7 Ra2 Bc8 Ra4 Ra7 Bb7 Qc7+ Bd6 Re5 B6e7 Qc6 Bc7 Rg5 d8N Rd5 Nf7 Rd6 Bcd8 Qc7 Bbe4 Bb7 Bf5 Qc6 Nh6 Rd4+ Qe4 Rc4 Bc8 Rd4 Re1 Kd2 Re2+ Kd1 Ra3 Qb3 Raa2 Qf7 Ra3 Rd7 Qe3 Rd4+ Be4 Bh4+ Bf6 Nb8 Nb3 Raa4 Raa2 Qfd7 B6e7 Ra8 Ra7 Na6 Na5 Qdc7+ Bd6 Nf2 Ke5 Nfg4+ Ke6 Bf6 Bd3 Qe8+ B6e7 Qa4 Rf2 Qe8 Qg5 Ke1 Re2+ Kf1 Qe3 Bbc6 Rb7 Ra7 Rb8 Bb7 Ra8 Qec6+
r3nN2/5N1p/qn1RpQ1q/rk4BP/2qB1BB1/4bp1B/2K1b3/3BR1Rn w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 g4 Kd7 d4 f5 Kd2 a5 h4 f3 c4 f4 d5 f2 d6 a4 h5 e3+ Kc2 a3 b6 Kc6 d7 e2 g5 e1Q g6 a2 g7 f3 b7 Nh6 g8B Qea5 Be3 Qa6 Nh3 Qb5 Rg1 Qda5 d8B Qaa6 Nd2 Bg4 Ng5 Nf5 Nf7 Nh6 Nb3 Be6 Nd4+ Kd7 Bh3 f1N c6+ Ke8 c5 Nf5 c7 Kd7 c8R Bh6 Bb6 Nd6 Bg5 Ne8 Rc6 Ng3 Qe2 Ra7 Qe5 Nh1 Rae1 a1Q Qf6 Q1a3 Bg4 Qe3 Bh3 Ra8 Ba7 Qf1 Rd6+ Kc7 c6 Nd7 Bc5 Bc4 Bg4 Be2 b8B+ Kc8 c7 Kb7 Bca7 Nb6 Ne6 Qf4 Nf8 Qac4+ Kb1 Ka6 c8B+ Kb5 Bh3 Qe3 Bcg4 Qd2 Bh4 Be3 Bg5 Qdd3+ Kb2 Qg6 Bc7 Qh6 Kb1 Nd5 Bd4 Ra5 Kb2 Nb6 Kb1 Qd5 Kc2 Qa8 Rc6 Qc8 Bcf4 Qa6 Rd6 Qf2 Ne5 Qf1 Bb3 e6 Nf7 Nc7 Ng6 Ra8 Nf8 Ne8 Kb2 Bd3 Bd1 Qe2+ Kb3 Qa2+ Kc3 Qc4+ Kb2 Be2 Kb1 Qb4+ Kc2 Qc4+
n1Q1RNk1/nn1p4/bP2K3/r1p2NN1/1N1NB3/pBB1b3/1r2Nbq1/4R1q1 w - - 0 1 illegal: Other
1n6/1qpbK1bq/N1PB4/4qQrB/Rp5B/n5B1/rk1B1N1p/Nn1B3R w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 d5 hxg5 f5 gxf5 dxe4 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 a4 Kd4 c4 h5 c5 b5 c6 e3 a5 e6 g6 h4 g7 e2 a6 e1N a7 h3 f6 h2 Kg5 e5 f4 b3 f5 b2 Qh5 b4 Nh3 e4 Ra4 e3 Na3 b1Q Nf2 e2 Nc2+ Kc4 d4 Kb3 d5 Nh6 g8B Ng2 d6+ Kc3 d7 e1Q Be2 Nh4 Bf7 Ng4 Bd1 Qde7 d8B Q1e5 Bd2+ Kb2 Na1 Qc3 Qh7 Qh3 Bh5 Qd7 f7 Qc2 f6 Qe4 Qf5 Bg7 f8B Ne5 f7 Nc4 Bd6 Rg8 f8B Na3 Bg3 Qe5 Bd6 Nf3+ Kg6 Qg4+ B8g5 Qh3 B5h4 Qd8 Kf7 Bd7 Bhe7 Qc8 Beh4 Qa5 Ke7 Qb7 Bh6 Nd2 Be3 Na6 Bef4 Ndb1 Bd2 Raf8 a8N Nb8 Nb6 Rf6 Qd5 Rg6 Qf5 Rg5 Nd5 Rf8 Nf4 Qe5+ Ne6 Rf6 Kd8 Rf7 Nc5 Re7 Na6 Re6 Qf4 Qhf5 Qf3 Qh7 Qf5 Reg6 Bgf4 Rg2 Bfg3 Rg5 Bc1+ Kc3 Nh3 Re2 Nf2 Ra2 Be3 Qa5 Ke7 Kb2 Bd2 Qe5+
BN1BB2R/n7/5r2/p4pRB/1qQ2nb1/n1PK2p1/r1NB1Rnk/2b2B1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kd2 Ke7 h4 Ke6 b4 Kf5 e4+ Kf4 b5 Kg3 b6 a5 h5 d5 c6 g5 e6 a3 c7 d4 b7 a2 c3 d3 e5 f6 e7 Bh6 e8B Ne7 e6 Ra6 Qb3 Qd6 Nf3 Nbc6 b8B Na7 Na3 Nd5 e7 Nf4 Rh2 Qb4 Qc4 Rb6 Ke3 d2 Nd4 d1N+ Kd2 Bf5 c8B Ne3 Bb7 Ng2 Bc7 Bd7 Rb1 a1N Ba8 Nc2 Nc6 Bf5 Nb8 Rh7 Nb5 Na3 Nd4 Re6 Bd8 Rf7 Nc2 Re2+ Kd1 Rf8 Bf7 Bc8 e8B Bd7 Nd4 Ra2 Nc2 Bc8 Kd2 Be6 Rh1 Bc8 Rg1 Kh2 Bg6 g3 Rb2 Bg4 Bgf7 f5 Bg6 Bg7 h6 Rf6 h7 Bf8 h8R+ Bh6 Be2 Ne3 Bh5 g2 Rf1 g1R Rf2+ Neg2 Bf1 Rh1 Rb1 Qc5 Rb7 Qb4 Rg7 Bf3 Rgg8 g4 Rg7 g3 Rg5 Ne2 Kd3 Bg4 Rg6 Bd2 Rg5 Bf4 Bd2 Be3 Be1 Bc1 Bd2 Nf4+
3Br1N1/1RBKNqr1/2rQ1p2/Bn1R4/1B1P1bp1/2n1R2n/3B1p2/k2Brb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 b6 c5 h5 g5 b5 a5 e5 g3+ Kf3 a4 e6 a3 Kg4 f3 Kf5 a2 h6 c4 b7 g4 b6 f2 h7 g2 d6 c3 d7 c2 e7 Qc7 e8R Bg7 Be2 Bf6 Nc3 Na6 b8B Qc6 b7 Qc7 Rb1 a1R Nf3+ Kc5 Nd5 g1N Ng5 Kd4 Ne4 Bg5 Nef6 Qc4 Ne7 Bf4 Bc7 Nh3 b8B Ra7 Ba5 Nc7 Rb7 Nb5 Bbc7 Qb3 Ba3 c1R B3b4 Rc6 Re1 Qa2 Rd8 Rac1 Bf3 Kc4 Re3 Qb3 Rb6 Ba6 Rb7 Kd4 d3 Qc4 Qd2 Re1 Bd1 Qa2 Nfd5 Nf6 Ng8 Ne4 Nde7 Rh6 Qc2 Rb6 Qc6 Nec3 Qe6 Rc6 Qd6+ Nd5 Nh6 Re8 Nhg8 Qb3 h8B+ f6 Ke6 Qa2 Bg7 Qb3 Rdb8 Qa2 d8B Qb3 Bd2 Qc4 Kd7 Qb3 Qa3 Ndc3 Bf8 Qf7 Qc1 Kc5 d4+ Kc4 Qa1 Ne4 Qa3 Nec3 Re5 Kd3 Rd5 Kc4 Qd6 Kd3 Be2+ Kc2 Bd1+ Kb2 Ra8 Ka1 Rab8 Na3 Rb3 Bf1 R8b7 Na4 Re3 Nb5 Bdb4 Nac3 Bh6 Bg3 Rf3 Be5 Bd2 Bf4 Re3 Rca6 Kc8 Qh5 Ng6 Rb6 Rb8 Rbb7 Bcb6 Rf7 Rb7 Ra6 N6e7 Rg7 Kd7 Qf7 Bbc7 Rc6
7n/P5pN/1K1r3R/p2k1Nn1/Q1bb1pn1/1N3Nnb/Nq2B2r/RR1N2B1 w - - 0 1 illegal: No possible last move
1BQr3k/1nKn2rn/8/1p2q2R/1B1BpbBN/1Pp2n1R/1N3R2/qB1b1B2 w - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 Qc2 a3 Qb2 axb2 Ke2 Kf7 Kd3 Kg7 Ke4 b5 Ke5 c5 g4 h5 f4 e6 a4 c4 d4 h3 f6+ Kh7 g5 h2 a5 h4 g6+ Kh6 d6 c3 d7 h3 f7 Kg7 f5 Qh4 d8Q Qe7 a6 Ra7 d5 Rd7 d6 Qg5 a7 Ba6 a8B Qe3+ Be4 Qg3+ Bf4 Re7 d7 Rh5 Kd6 e5 f6+ Kh8 Nd2 b1N Qc8 Bb7 d8B Bh6 f8R Nd7 Ngf3 Rg7 Nc4 Nd2 Nh4 Nf3 Bb1 e4 f7 Rd5+ Kc7 Qg5 Bd6 Qe5 Ra7 Bf4 Bf6 Rd1 Ra2 Bd5 Re8 Be6 f8B Bg4 Rf2 Rd3 Nb2 Rd2 Rg1 h1Q Rg3 h2 Rh3 Qg1 Re7 h1N Re6 Ng3 B8e7 Qd5 Bd4 Nf5 Re5 Qh1 Bf8 Ngf6 Bb4 Nd6 Rh5+ Nh7 Be7+ Qg8 Bef6 Qf8 Ba7 Qe8 Bb8 Ne1 Bd4 Bd1 Qa6 Qe5 Qc8+ Rg8 Ba3 Rd8 Bb4 Nf3 g7+ Kg8 Bc4+ Qe6 Rfh2 Rg2 Ba2 Bc2 Bd3 Qe1 Bf1 Qa1 Bb1 Rg5 Rf2 Qe5 Rfh2 Bd1 Rf2 Kf7 g8B+ Kg7 Bf7 Kh8 Be6 Rg7 Bg4 Nb7+
1k2NB1K/q2nR1BB/4R2B/2Np4/Npr5/5b2/QprPBqq1/Bb2b2r w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b3 b5 Ba3 b4 Bc1 Nc6 Rh3 Na7 Rh1 Nb5 cxb5 a4 Qf3 axb3 Qe2 Ba6 Qd1 Bc8 Ke2 c5 Ke3 d5 Kf4 Kd7 Kg5 Kc7 f4 h5 Kg6 e5 g4 h3 a4 h2 a5 h4 f6 h3 f7 c4 a6 e4 f5 c3 a7 c2 b6+ Kb7 f6 e3 g5 e2 Nc3 e1R Ne4 Re3 Be2 Qc7 Ra6 Qf4 Nc5+ Kc6 b7+ Kc7 b8B+ Kd8 Re6 Qc7 Bb2 c1Q Ba1 b2 Qb3 Qf1 Qa2 Bd6 Kg7 Qf2 g6 Bg3 Re7 Bd7 f8B Kc8 f7 Bf5 Re6 Qb7 Bf4 Re4 Bh6 Rc4 Re7 Rb8 a8N Qa7 Nc7 Nf6 Ne8 Nd7 Re6 Rh7+ Kg8 Bb1 Bfg7 Rb6 f8B Kb8 Bf3 Bf4 Ne2 Bg3 Nc3 Rc6 Rhe1 h1Q N3a4 h2 R1e4 Qhg1 Be2 h1B Re7 Bh4 R4e6 Bhe4 Bg5 Rh5 B5h6 Bf3 Kh8 Rc7 Be5 Qgg2 g7 Bg3 g8B Rh1 Bh7 Rc2 Beg7 Rc6 Nb3 R6c4 Nbc5 Qe3 Nb3 Be1 Nbc5 Qef2
1Bqq1N1N/b3Q1B1/p3BKp1/Bbpb1qR1/1n1R4/PB2rk2/4n3/B2n3N w - - 0 1 legal: proof: g4 f5 e4 d5 h4 b5 c4 bxc4 h5 a6 h6 dxe4 gxf5 g6 Nh3 Ra7 Ng1 Rb7 Qc2 Rb6 Qd1 Rf6 Qe2 Rf7 Qd1 Rg7 hxg7 Qd4 Bg2 Qd5 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 e3 b4 h4 f6 c3 a3 c6 f5 e2 f7 e1Q f6 h3 b5 h2 b6 e6 b7 c2 Nc3 Rh6 Ne4+ Kc7+ Ke5 c5 d4 Kc6 Nh3 Bd7 Qe2 Ne7 g8B Qf2 Nhg5 Rh3 Rg1 h1B Bb2 c1N Ng3 Bd5 Nh1 Nf5 Qe4 Rb3 Bh3 Ne2 Rad1 Ne3 Ba1 Qc8 Rd2 Nd1 Qe3 Be7 f8N Bd8 Nf7 Bb6 Nh8 Ba7 f7 Qf1 Qe4 Re3 Rg5 Qf3 Bf5 Qh3 Kf6 e5 Qh4 e4 Be6 Kd6 Rd3 Bb5 Rd2 Nc6 b8B+ Qc7 Qe1 Nb4 Rd3 Bb3 d5 Qf5+ Kg7 B3c4 Rd4 Ke5 d6 Kf4 d7 Kf3 d8B Qc8 Bdc7 Bd5 Ba5 Rb3 Qh4 e3 Qh7 Ng3 Qh4 e2 Qh7 e1Q Qh4 Qc2 Kf6 Qed2 Qh7 Re3 Qh4 Be4 Bb3 Bd5 Qe4+ Ke2 Qe7 Q2f5+ Kg7 Qdc2 Rf4 Qfd7 Kf6 Qb1 Rd4 Kf3 Ne6 Qcd8 f8B Qc2 Bg7 Ne2 Nf8 Q7c8 Be6 Qf5+
6b1/b1NBk1q1/1p6/rRPR1B1r/1pQp4/4N1pb/2N1n3/BrnBBK1B w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 h4 f5 c4 d5 e4 g5 a4 g4 h6 f4 h7 d3 a5 f3 e6 g3 e5 b6 c5 Qd6 h5 Ra7 a6 Nd7 e7 Qf6 h6 Rc7 a7 Bb7 a8B Qf5 Nc3 Qe6 Rh5 Qf7 Bh3 f2+ Kf1 d2 Ra5 Qf3 Qc2 d1B Nge2 Rc6 Rb5 Qe3 Bd2 Qf4 Nd4 Ngf6 Be1 Bg4 Nd1 Ne4 Ne3 Qf6 Qc4 Rc7 Ndc2 Nc3 Rf5 Kf7 e8B+ Ke7 e6 Ne2 Bh5 Qg7 Rg5 Ne5 Rf5 Rg8 h8B Nd3 h7 Ndc1 Re5 Bc8 Bc6 Ra7 Bb7 Bf3 Bf5 Bg4 Bc6 Ra5 Bb7 Kf6 e7 Be6 e8B Bd6 Bd7 Ke7 Bbc6 Bb8 Bb7 Qf6 Bg7 Rc8 h8N Ba7 Nf7 Rh8 Nd6 Rh7 Bh8 Qg7 Ne8 Rh6 Nc7 Rh7 Be4 Rh6 Rg5 Bg8 Bh1 Rh7 Bg6 Rh5 Bgf5 Qh7 Be5 Qg7 Ba1 d4 Bbf3 Nf4 Bd1 Nfe2 Kg2 f1R Bfe6 Nd3 Rd5 Ndc1 Bf5 Rf3 Nf1 Rb3 Nfe3 Rb1 Kf1 Bh3+
3BN2K/Rb1pr1pn/1R2bbp1/3q3r/1pnk3N/P1RN4/1NnN2BQ/N7 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 Na6 b4 axb4 g4 Nb8 g5 Ra6 g6 hxg6 Bf4 Ra5 Bc1 Ra8 Kd2 Kf7 Kd3 Kf6 Ke4 b5 h4 e5 c4 b3 f4 b4 c6 b2 c5 Rh7 c7 Be7 c6 Bc5 h5 Bf8 h6 Qe8 Qh5 Na6 Nd2 b1B+ Kd5 e4 Rh3 e3 Bg2 e2 Rc3 e1N Qh2 Qe2 Ngf3 Bd6 Nh4 Bb7 c8N Bc2 Nb6 Rc8 Na4 Rd8 Nb2 Bc8 c7 Rh8 h7 Kf7 f6 Qe3 f5 Ke8 f7+ Ke7 f8N Kf6 Ne6 Nb8 Nf4 Qa7 Nfd3 Ba6 c8N Bc5 Nd6 Bd4 Ne8+ Kg5 f6 Bc4+ Kd6 Be6 f7 Qa8 f8N Nf6 Ke7 Qd5 a3 Rg8 h8R Nh7 Rc7 Bd1 Ra7 Bf3 Rb1 Nc2 Ra1 Bh3 Ne6+ Kg4 Kf7 Bf6 Ra2 Nc6 Ra1 Na5 Ra2 Qe5 Nec5 Bb7 Ncb3 Nc4 Na1 Rb8 Ndf3 Rc8 Bg5 Rc5 Nd2 Qf5 Bf4 Qe4 Bc7 Rh5 Bd8 Qd4 Nd1 Kg5 Rb2 Qc5 Rb3 Qd6 Rc3 Qc5 Nd6 Re8 N1b2 Re7+ Kg8 Qd4 Ne8 Qe4 Nhf3+ Kf5 Nh4+ Ke6 Qf4 Kd5 Qh2 Rg5 Nd6 Kd4 Ne8 Nf8 Rh5 Be6+ Kh8 Ra5 Rf5 Nh7 Rb5 Qf3 Rb6 Rh5 Qg3 Qc6 Qh2 Qd5
n3RKb1/2nQr3/3N2B1/B7/1bP3NN/k1Bpp2N/1N3ppb/Nqq1R2r w - - 0 1 illegal: No proof kernel
BRKr1N2/QpN4B/b2B2Rb/rnN2p2/n2Np3/q3pn2/q2P4/k4NN1 w - - 0 1 illegal: No proof kernel
2q1R1Nn/3N1B2/N1R1p3/1krQ2Nb/2Np1brn/pNr1pRP1/K7/6Br w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 d5 c4 Kd7 Kc2 h5 Kb3 a5 f4 e3 g3 a4+ Ka2 h4 b4 a3 f5 h3 b6 Kc6 g6 h2 g7 Qe8 c5 Rh3 f6 Ra4 b7 Na6 b8R Qd7 f7 Qc7 b5+ Kd7 b6 Kc6 b7 Bg4 Nd2 Bh5 Nb3 Qc8 Bc4 Nc7 Nf3 Nh6 g8N Ne6 Rf1 h1R Ng5 Nf5 Rf3 Bh6 f8N Nd8 Nd7 Nf7 Bb2 Nh8 Rc1 Nh4 Rc3 Qc7 Re8 Qc8 Bc1 R3h2+ Bb2 Rc2 b8N+ Kc7 Na6+ Kc6 Nh3 Bf4 Ng5 Rc1 Rc2 Rb4 Bc3 Rb5 Be1 d3 Bf2 d2 Bg1 d4 Bf7 e6 Rc4 Kd5 c6 Rc3 c7 Rc5 Qe2 Kc6 Qg2 Rh3 Qh1 d1R Qg2 Qd8 c8N Kb5 Ncb6 Qc8 Qh1 Rd5 Rc6 Rdc5 Nc4 Rdc1 Ne4 Rg5 Qg2 Rg4 Ng5 Rh1 Qc2 Re1 Qe4 Rec1 Qd5+ Ka4 Ncd2 Rc5 Nc4 Rc3 Nc7 Kb4 Na6+ Kb5
1R2K1RN/r1r1N2N/p2p3B/2B1n3/1p3b1k/BnBQ1pr1/B3P1q1/1r1b3B w - - 0 1 illegal: No proof kernel
r2r1N2/k2p2P1/Np2BN1R/N1rq1B2/3Q4/3p3K/1nb1p3/BN1NbRrn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 e5 a4 h5 f4 b6 Kf2 e4 Kg3 h4+ Kh3 b3 g4 b2 f6 e3 f5 e2 a5 Ba3 a6 Rh5 a7 Rh7 c5 Rh6 c6 Rh8 f7+ Ke7 f8N Kd6 f6 Kc7 f7 Bb7 g6 Rh6 g7 Qc8 g5 Bb4 g6 Rh5 Nh7 Ne7 g8B Be1 f8N Rc5 g7 Nf5 Nf6 Ng3 Be6 Na6 Bg2 Qe8 Be4 Nb4 B4f5 Qh5 Bf4+ Kc8 c7 Nd3 Be5 Be4 Qd2 Kb7 c8N Qg5 Ne7 Qh5 Rh2 Nh1 Nc6 Rd8 a8N Qg5 Nc3 b1R Na5+ Ka7 Nf3 Nb2 Nc7 Bc2 Nd1 d3 Qc3 Rc1 Na6 Rcc8 Qc5 Ra8 Nd2 Qh5 Nb1 Qf7 Kg4 h3 Qd4 Qg8 Rf2 h2 Kh3 Qf7 Rf1 Qg8 Bd5 Qe6 Ra4 Qc6 Bde6 Qd5 Rc4 Bb3 Rc8 Rc5 Rc6 Bc2 Qa4 Nc4 Ba1 Nb2 Qb4 Ng3 Qd4 h1R+ Kg4 Rg1 Kh3 Nh1 Bf7 Na4 Ne8 Bh4 Rh6 Be1 Nf6 Nb2 Bg8 Nc4 Bge6 Nb2
Bk3B2/2pnqn1b/2PRp3/3p1B1N/N1K1Q2B/br1B1p1N/1B1R1r1b/b7 w - - 0 1 illegal: No possible last move
R1n1bBQK/p1B5/1BR1q3/1N1qBp2/nB2k3/rN1p2p1/2n3PN/1q1Br3 w - - 0 1 illegal: No proof kernel
NNqR2N1/1k3p1p/1bR1nr2/2nBNP1B/2rQ1rq1/K5pp/3qNB1N/8 w - - 0 1 illegal: Other
1k5B/2rB1p2/b1r1qNrB/p3pN2/R2RB1q1/3B1QBn/N1np1P2/1K3n2 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 b4 Kd7 Kb2 Kc7 c4 a5 g4 h5 b6+ Kb7 g5 h3 g6 e6 g7 h2 d5 h4 c5 h3 c6+ Ka6 b7 Ka7 c7 Qe8 b5 Qe7 b6+ Ka6 d6 Rh6 d7 Qf6+ Nc3 Ra7 d8B Qe5 Ra4 Nc6 b8B Kb7 Nf3 Nd4 Kb1 Nc2 Bf6 Rg6 Na2 Ne7 g8B Nd5 Bh7 Nf4 Nd4 Qe1 Qg4 d1Q Nf5 Ka8 Bh8 Ba6 c8B Rc7 Rg1 h1N Bd7 h2 Qf3+ Qe4 Rg4 Ng3 Bg2 Nh3 Rh4 Qe2 Bh6 h1R+ Bf1 Qd5 Rhd4 Rh2 Bg2 d2 Bf1 Qc4 Bd3 Nf1 Be4 Rh1 Bd3 Rc6 Bg3 e5 b7+ Ka7 b8N Qe6 Be8 Kb7 Nd7 Kc8 Nf6 Kb8 Bd7 Rg1 Rd6 Qg4 Rdd4 Rg8 Ne7 Rgc8 Bhe4 R8c7 Nf5 Qf4 Bh2 Rg6 Bg3 Qg4
2r1bb2/1p4r1/K1B1n2R/1P1pN1BR/p1N1b1n1/6N1/Bp4Q1/1BbkBrB1 w - - 0 1 illegal: Other
1k3qr1/3R1pp1/R1RR1R1n/3pp3/R2r3n/NNpBbNBn/1QP4K/6r1 w - - 0 1 illegal: No proof kernel
4rNBB/1rRppBp1/1ppB1N2/3q4/2kBr1b1/7B/1P3R1Q/2bNK1nb w - - 0 1 illegal: No proof kernel forced: wxDB
K6R/pB2n3/pb2BB2/N4b2/k2BR3/bnppqNp1/PB1b3Q/B2R2r1 w - - 0 1 illegal: No proof kernel
1r1R4/3B1BnR/3bb3/1KN1q1B1/4B3/q1p1NnNq/2P5/bkB1NrQ1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 e4 Ng8 exf5 a5 h4 g5 b4 gxh4 e6 dxe6 bxa5 e5 Ke2 Ke7 f4 Kf6 g4 c5 b6 h5 b7 c4 g5+ Ke7 g6 Kf6 a6 h3 g7 h4 a7 e4 Nf3 e3 Ne1 h2 Nc3 h3 Nd5+ Kf7 f6 Ke6 f5+ Ke5 f7 Qd6 f6 Ne7 g8B Nbc6 b8N Qa3 Na6 Nf5 Nc5 Ng7 Ne4 Be6 Ng3 Rb8 a8B Bd6 f8N Rh4 f7 Rf4 Bg2 Rf5 Be4 Rf1 Nb4 Kf4 Nd7 Ne5 f8B Nf3 Nc5 Ke5 Bac6 Kf4 Rg1 h1Q Be7 h2 Bg5+ Ke5 Rg2 Qg1 Nd5 h1Q Bf7 Qh3 Bd7 Qgh2 Nh5 Qf4 Ng3 Qf6 Rh2 Qff5 Bd2 Kd4 Qb1 Qe5 Bc1 Qb3 Ra8 Qa3 Nf4 Kc3 Nfg2 Rb2 Rd8 Rb8 Qb6 Nh5 Qa7 Ng7 Bd2+ Kb2 Bc1+ Kb1 Rh1 c3 Kd3 e2 Rh2 Rb2 Ne3 Rb8 N1g2 e1B Rh1 Bd2 Ne1 Qg2 Rh4 Qh3 Rh7 Bf5 Kc4 Bg4 Bb2 Bc1 Qb6 Be6+ Kb5 Qa7 Ba1 Ba3 Bb2 Qa8 Bc1 Bb2 Nd1 Ba1 Ne3 Qa3 Nc4 Bd5 Ne6 Rc8 Qg1 Ra8 Nc5 Be6 Ne3 Rb8+
7R/1bN2R1q/1r1b4/2B1B1qN/K2N3Q/b1BB2p1/n2P1q1q/N2kq1N1 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 a4 h5 axb5 hxg4 f4 exf4 b6 Ba6 b5 Nc6 bxc6 Ra7 Ra4 Bc8 Ra1 Rb7 cxb7 Bf5 Bb2 Be6 Bc1 Bc8 b8B Kd7 h4 Kd6 e4 Ke5 d6 Kd4 e5 c5 b7 g5 h5 f5 d7 f3 h6 f4 e6 g3 h7 f2+ Ke2 a4 e7 g4 e8N g2 Rh3 g3 Qb3 a3 Kd1 a2 Kc2 c4 Nd6 c3 Be2 f1Q Ne4 f3 Ba3 f2 Nf6 Ne7 Nh5 Qe1 Bd3 Nc6 Qa4+ Nb4+ Kb3 Qg5 d8N f1Q Rh2 Rg8 h8B+ Rg7 Bc7 c2 b8N c1B Na6 Bb7 Rh1 Bd6 Ne6+ Ke5 Ba5 Qff2 Nd4 Qe4 Nc7 Qh7 Rh4 Bb2 Rf4 Bc1 Rf6 Rg6 Rf7+ Rf6 Ng7 Kf4 Nh5+ Kg4 Bg7 Rh6 Be5 Re6 Qd7 Bb2 Qd8 Rf6 Ka4 Rg6 Nh3 g1Q Qf6 Qgh2 Ng1 Na6 Bc5 Nb4 Na3 Bc1 Rb1 a1Q Qh8 Na2 Nac2 Ba3 Bc3 Re6 Rb6 Qae1 Na1 Rf6 Ra6 Rh6 Qf6 Rg6 Ra8 Rh6 Nh3 Rg6 Rh8 Rh6 Nf5 Kf3 Nd4+ Kg2 Qe6 Bf8 Qc4 Rb6 Ng1 Bd6 Nde2 Kf1 Qh4 Qc1 Bc2 Ke1 Nd4 Qb1 Bg6 Qe4 Bf5 Kd1 Bg6 Qee3 Bd3 Qee1
2NQ2q1/nr1n1n1n/n2R4/2k1NBQ1/5b1N/3P1R2/2p3NK/nNBq1N2 w - - 0 1 legal: proof: b4 a5 h4 b5 f4 d5 a4 e5 axb5 exf4 c4 g5 cxd5 gxh4 b6 Qd6 b7 Ne7 b5 Ng8 b6 Nc6 b8N Ra6 Nxa6 Bh3 b7 Qd8 Nb8 Na7 Rxh3 Be7 Rh1 Bf8 Kf2 Ke7 e4 Kd6 g4 h5 Kg2 c5 d3 f5 g5 c4 e5+ Kc5 d6 h3+ Kh2 h4 d7 a4 e6 c3 e7 f3 e8Q a3 g6 a2 g7 f2 Qdh5 c2 Qg4 f4 Be2 f1Q Nc6 f3 b8N f2 Qg2 Bd6+ Ne5 Rh7 Nd2 Nh6 g8N Nf7 Bh5 Qd1 Ne2 Qc8 Rb1 a1N d8N Qe6 Bg6 f1N+ Kg1 Qg4 Nh6 Ne3+ Nf1 Nd5 Nf5 Nc7 Nbc6 Na6 Nc3 Bb8 Qg3 h2+ Kg2 Qc4 Qg5 h3+ Kg3 Qe6 Rb6 Qc8 Rg1 h1N+ Kh2 Ng3 Nce7 Ne4 Rd6 Nf6 Nh4 Nd7 Rg3 Bc7 Bf5 Qb8 Kh1 h2 Nb1 Rg7 Kg2 h1N Nc8 Nf2 Kh2 Ne4 Rf3 Nef6 Qe7 Nh7 Ne6+ Kb4 Nf4 Kc5 Nfg2 Qa8 Nb6 Qg8 Nc8 Ba5 Kg3 Bd2 Qd8 Bf4+ Kh3 Rg6 Rd4 Rb6 Rd6 Bd2 Kg3 Rb7 Kh2 Bf4+
q3r1R1/B1knB1rB/2P2bQR/8/1b2qbp1/1R3B1K/1pN1B1R1/1q5N w - - 0 1 legal: proof: d4 a5 g4 d5 f4 h5 gxh5 c5 e4 e5 dxc5 d4 Nf3 Bg4 Ng1 Be6 b3 Bd5 exd5 e4 b4 axb4 Be3 Nd7 Bc1 Ne5 fxe5 Be7 Be3 Bd6 Bc1 Bf8 Kf2 Kd7 Kg3 b5 c4 g5 h4 b3 a4 e3 e6+ Kc8 h6 e2 a5 e1B+ Kh3 f6 a6 b2 h5 d3 c6 b4 e7 b3 e8Q d2 d6 Ra7 c7 Ne7 c5 Ra8 a7 Kb7 d7 Rg8 c8B+ Kc6 h7 Ng6 h8R Nh4 h6 Qc7 d8B+ Qd7+ Qg4 d1Q h7 Qd4 Ne2 Be7 Na3 b1Q Rg1 b2 Be3 Ng6 Ng3 Ne5 Rg2 Qde4 Nh1 Bb4 Qg6 Rg7 Nc2 Qb7 Be2 Nd7 Rg8 Bd6 h8R f5 Be7 Kc7 Ra3 Bf4 Rb3 Rb8 Rh6 Qa8 Bb7 Re8 Bd5 Qc6 a8B Qa4 Q4h5 g4+ Kh4 g3 Qhg4 Qaa1 Kh3 Qa5 Bdc4 Qaa2 Bad5 Qa5 c6 Qa8 Rf2 g2 Ba7 g1B Rg2 Bd4 Bf3 Qd1 Bce2 Bdc3 Rf8 Qg1 Bg8 Bf6 Bh7 Qb1 Rg8 fxg4+
B5Q1/2q2Br1/P3Qq1N/1nR5/3pB3/1p1NBRr1/1q1n1q2/bBK2kB1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d3 h5 d4 cxd4 gxh5 b6 f6 Bb7 fxe7 Be4 f3 Kf7 fxe4 Ke6 e5 Kd5 e6 Kc6 Kd2 Kc5 e8B d5 h4 g5 c4 b5 a4 b3 h6 b2 a5 d3 e7 Kd4 c5 b4 h7 b3 c6 g4 c7 g3 c8B g2 h5 Na6 h6 Qd7 Nh3 g1Q Bb7 Nc7 a6 Qg6 Qe1 Qd8 Nc3 b1Q Bg2 Qg3 Bf7 Qh2 e8B Qe5 Ng5 Qd7 Na2 Nb5 Nb4 Ra7 Be4 Qf6 Rf1 Bg7 Ra5 Qc7 Rf3 Qa2+ Kd1 d2 Ba8 Rb7 Bc6 Kc4 Bb1 Kd4 Qe6 Kc4 Ke2 d1Q+ Ke3 Kc3 Nd3 Qdc2 Bd2+ Kc4 Ke2 Qcb2 Kd1 Qbd4 Kc1 Qf2 Be3 Kc3 Ne4+ Kc4 Ng3 Ra7 Nf5 Rb7 Ne1 Ra7 Nc2 Kd3 Nb4+ Ke2 Nd3 Rb7 Ra4 Kf1 Rc4 Qg6 Rc3 Nf6 Rc5 Rg8 h8Q Ne4 h7 Ba1 Nh6 Qf6 Qg7 Nd2 h8B Ra7 Qh7 Rg3 Qg8 Rb7 Bg7 Ra7 Bf8 Rb7 Bd6 d4 Be4 Rg7 Bh2 Rb8 Qh8 Rbg8 Bg1 Rg3 Qh7 R8g7 Qg8 Qb2+
1b2rN2/nr4PB/2N2K1b/q2N1B1R/1B3Q1n/bkN3R1/bB3Bnb/r7 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 h4 g5 f4 exf4 e3 fxe3 hxg5 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 g4 c5 g6 f5 g5 h5 d6 a4 b6 c4 g7 h4 d5 h3 g6 c3 b7 a3 d7 a2 d6 h2 Nh3 f4 Qg4 c2 Bd3 e2 Nc3 e1B Bf5 Qb6 d8N Kb3 d7 f3 Nc6 f2 d8N f1N Qf4 Bg3 Ne6 Nh6 g8B Rh7 Kf6 Ba3 Nf8+ Be6 Bd2 Rg7 Bh7 Ne3 Rag1 a1B Be1 c1B Bf2 Re7 g7 Qa5 Rg2 Re8 Rgg1 Ra7 Rg2 Na6 b8B Rb7 Bd6 Nc7 Bb4 Nb5 Rgg1 Na7 Rg2 Bh4+ Rg5 Bg8 Rg1 Bg3 Rh5 h1R Rg2 Bh2 Rg3 Be6 Qc7 Nf7 Nf4 Ne5 Nfd5 Nf3 Qf4 Re1 Na2 Ng5 Qh4 Rbe7 Bc3 Ng2 Nf4 Kc4 b4 Ba1b2 b5 Rd7 b6 Nf3 b7 Rh1 b8B Rb7 Qg5 Nfh4 Bbe5 Bd2 Bd6 Ra1 Bb4 Bbc1 Bb2 Bg8 Nd5 Bf4 Nac3 Bb8 Nc7 Bf7 Qe3 Bd5 Qe5 Bh6 Qd6 Be4 Qf4 Kb3 N7d5 Bb1 Re3 Ba2 Rd3 Re4 Rg3 Re8
1Bb1b1B1/3R3q/4K3/3NNqrr/8/nr2RBbk/r1nNP2N/Q4rBB w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 Kf3 c5 Ke4 h5 Ke5 f5 d4 b3 g4 c4 d6 b2 d5 c3 b6 c2 b7 h4 g6 h3 g5 h2 g7 f3 g6 f4 Nh3 f2 Ng1 f3 Nd2 b1R Ba3 c1R Bc5 Ra2 Bg2 Nh6 g8B f1R g7 f2 Ngf3 Na6 b8B Qh4 Rg1 h1B Nh2 Rb4 Bf3 Rb3 Rg3 Nf5 Qe1 Rcc2 Rd1 Rh5 Bf7 Rcb2 g8B Nc7 Rh3 Nb5 Be6+ Kd8 d7 Na3 Bd4 Ke7 d8N Rb1 Nf7 Ne3+ Bf5 Nec2 d6+ Ke8 d7+ Ke7 d8N Rg5 Ba8 Bc6 Ne6 Qh7 Re3 Be8 Bf3 Bg7+ Kd5 Be5 B5e4 Bg3+ Ne5 Kf6 Nc7 Rh5 Bh1 Kg5 Bef3 Kh4 Kd6 Rg1 Nd5 f1Q Bda7 Bb7 Ke6 Kh3 Ne4 Rg2 Rd4 Rba1 Nd2 Ba6 Qb1 Qf2 Qb2 Rf1 Qa1 Rgg1 Rg4 Bb7 Rg7 Bc8+ Rd7 Rg2 Rd3 Qc5 Re3 Qf8 Bc5 Qff5+ Kd6 Qhf7 Re4 Bh4 Bg1 Rgg5 Re3 Q7g6+ Ke7 Qh7+ Kd6 Qe4 Ke6 Bg3 Qb2 Qd3 Qa1 Qdf5+
3r4/n2B1b2/RQ2R1q1/b3KBR1/2B2r1q/1R2P1b1/n1r2B1k/NR1N1n1n w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 c5 d4 c4 g6 f3 g5 f2 b6 c3 g7 h4 g6 c2 b7 b3 Nh3 f6 Ra6+ Nc6 b8R b2 Nd2 b1Q Rb3 Ne7 g8B Be6 g7 Bf7 Bh7 Rc8 g8B f5+ Kf4 Rc7 e3 Nc8 Bc4 f1N Nf2 h3 Qh5 h2 Qh6+ Qf6 Nd1 Na7 Bg6 Kd7 d6 Nb4 d5 Qh4+ Ke5 f4 Ba3 Na2 Bb4 c1B Bf5+ Be6 Rg1 h1N Rg5 f3 Bf7 f2 Be8+ Kd8 d7 Bf7 Bc3 Ke7 d8R Ba3 Rdb8 Bb4 Qg6 Ba5 Qb6 Bh6 Bed7 Rd8 Rb7 Qc2 Rb1 Rc6 Nb3 Rc7 Bg4 Qg6 Na1 Rcc8 Be1 Rc6 Kd4 Kf6 d6 Rcc8 Bf5 Bf8 d7+ Bd6 Rb8 Rc6 Ke4 Bg3 Rb7 Nh2 Rb8 f1R Rb3 Rf3 Bf2 Nf1 Rb7 Rc8 d8R Rf4+ Kd3 Rb8 Re8 Ra8 Re4 Rg8 Bd7 Rd8 Bge6 Rcc8 Kd4 Rc5 Bf5+ Rc6 Bce6 Rc2 Bd5+ Kg7 Bc4 Kh6 Rg4 Kh5 Ke5 Qh3 Rg5+ Kh4 Rd4 Qg4 Rd6 Kh3 Re6 Kh2 Qc7 Be1 R7b4 Q4h5 Qb6 Qh4 Rb1 Bd2 R4b3 Ba5
4R1bB/1B2BNbb/P3q3/R1rB1k1r/nKn1n3/3B4/1Q2Nn1q/3Rr2R w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 Kd2 Kd7 f4 b5 a4 e5 g4 h5 d6 b3 g6 h4 a5 b4 f6 Ke6 g5 b2 d7 b3 g7 e4 g6 h3 f7 h2 a6 d3 Kc3 e3 Ra5 e2 Qc2 e1R Ne2 d2 Na3 b1B Bb2 Qb6 d8R Rh5 Nb5 Nf6 g8B Nc6 g7 Ne5 Nd6 Nc4 Qc1 Qe3+ Kb4 d1N Ba1 Ra7 Qb2 Ne4 Bg2 Re7 Bh7 Rc7 g8B Bg7 Bg6 Ndc3 f8B+ Kf6 f5 Be6 B8f7 Rc5 Be7+ Ke5 f6 Qg1 Be8 Bg8 f7 Ke6 f8R Na4 Nf7 Bd3 Qd4 b2 Bc6 b1Q+ Qb2 Qa2 Rfe8 Bc2 Rd1 Qe3 Rf1 h1N Bb7 Nhf2 Rh1 Qh3 Bf3 Qh2 Bh7 Ned6 Bd3 Nde4 Qb3 Kf5 Qb1 Bf8 Bh8 Bg7 Qb3 Ne5 Qc3 Qe6 Qb2 Nc4 Bf8 Kg6 Qb3 Kf6 Qa3 Ned6 Qb2+ Ne5 Bb5 Bch7 Be7+ Kf5 Bfd5 Nde4 Bd3 Nc4
qb1B4/6bB/r3R1n1/Pb1BqRbB/3K4/3R1R1N/1NkqBn1Q/3n2b1 w - - 0 1 illegal: No possible last move, all moves rejected
BN1bbq2/1B5k/B4R2/bB4KP/N1N3N1/Q3n1N1/bR2r1q1/1rb2rr1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 h6 Nh3 Nc6 Ke1 Nce7 Bg5 f4 Ng1 Nf5 gxf5 hxg5 Kf2 Kf7 Kf3 d5 Kg4 a5 e4 g6 h4 Kg7 c4 f3 b4 f2 h5 d3 e6 a4 f6+ Kh7 f7 d4 c5 d2 e5 a3 c6 a2 b6 d3 b7 Qd5 b8N Ne7 b5 Qd6 b6 Nf5 e7 Rg8 e8B Bd7 c7 Bh6 c8B Qf8 Qc1 d1B+ Ne2 d2 b7 Bb3 e6 d1R e7 Ra3 Bg2 f1R Rh2 Bc4 Ng3 Re3 Qc3 Re2 Na3 Rb1 Na6 Bc6 b8N Ne3+ Kh3 g4+ Kh4 B6b5 Bec6 Be6 Bce4 Be8 Nc5 Bb3 Ba8 Rg7 Nf5 g3 Bgb7 g2 Nc4 g1Q Na4 Qg2 Ng3 Bf4 Qb4 Bc7 Kg5 Bd8 Qa3 Rg8 Rh4 Ba5 Rf4 Rg7 Kf6 g5 Ba6 g4 Bcb7 Rbb2 Re1 a1B Rb1 Ba2 Rf5 Rb4+ Rb2 Rg8 Ne4 g3 Rf2 Rh8 Kg5 Rb6 Rf6 Rb3 Rc2 Bb2 Rd2 Bc1 Rb2 Bb5 e8B Bd7 Rd2 Rb1 Rb2 Rg8+ Kh4 Bf5 Beb5 Bg6 Kg5 Qg1 Nec3 g2 Ne4 Qf2 Ng3 g1B Nc6 Qg2 N6e5 Bf2 Ng4 Bfe1 Qd6 Bd8 Qd3 Qe8 Qa3 Bea5 f8N+ Kg7 Nd7 Qf8 Qb3 Kh7 Qa3 Rg7 Nb8 Be8+ Kh4 Rd7 Kg5 Rdd1 Nf5 Rg1 Ng3 Rdf1
5n1b/kqn4B/BR1B4/2b2rr1/1b1Qr2R/1bP2p2/NN1B1Kq1/2RR3B w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 g4 g5 h3 f5 gxf5 g4 h4 Qg5 hxg5 exf4 e4 Kd8 b4 Kc7 b6+ Kb7 g6 a5 f6 h5 e5 d5 b5 a4 g7 a3 f7 a2 e6 d3 e7 f3 e8B g3 Nc3 g2 Bd7 d2+ Kf2 d4 Bg4 d3 Nd5 h4 Be6 h3 Nc3 h2 Na4 Bb4 f8R Nf6 g8B Rh5 Rd8 Na6 Nb2 Nh7 Bh3 Nf8 Ne2 Nc7 Bh7 Be6 Nc3 Rg5 Rb1 a1B Na2 Ra3 Rd7 Ka8 b7+ Ka7 b8R Bb3 Rb6 Ra4 Rd4 Rf5 Rh4 Rg5 Rg1 h1Q Bc8 Ra5 Ba6 Qh3 Nc4 Bf6 c3 Bh8 Nb2 Qc8 Rgh1 Qb7 Rg1 Bg8 Qa4 d1Q Bd2 Qc2 Rd1 Bb3 Rgh1 Bd6 Qd4 g1B+ Ke1 Bb4 Bg2 Be3 Rf1 Ra4 Bh1 Bg1 Qg4 Bgc5 Qd4 Qb1 Kf2 Qc1 Be1 d2 Rg1 Qa1 Rc1 d1R Bd2 Re1 Rf1 Re8 Rfd1 Ra5 Rd6 Ka8 b6 Re4 Rdh6 Qb1 Rc6 Qc2 Rg6 Qc8 b7+ Ka7 Rf6 Bb6 Rfh6 Raf5 Rc6 B6c5 b8B+ Ka8 Rb6 Qb7 Kf1 Nce6 Bd6 Ka7 Be3 Qh2 Bd2 Qh3+ Kf2 Nc7 Bh2 Qg4 Bd6 Qg2+
3R1n2/2nN3p/kN2b3/2R2BKq/1r4b1/1P2R2B/bQR3qq/rq1N1NN1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 h4 Qd7 b3 Qh3 Bb2 Kd8 Bd4 Be7 Bf2 Bg5 hxg5 Ba6 g6 Bb7 Qc1 gxf2+ Kd1 Ke7 g4 Ke8 g5 Qc8 Kc2 Ba6 Qd1 Qd8 Kc1 Bc8 e4 Kd7 d4 a5 Kd2 f5 d6 c5 b6 Kc6 b7 Kb6 d7 a4 d5 a3 e5 f3 Ke3 c4 Kf4 c3 d6 a2 e6 c2 g7 c1Q+ Qd2 Qb2 e7 Nc6 b8N Qc2 e8R Na7 g6 Ne7 g8N Nb5 g7 Nc7 Nf6 Ng6+ Kg5 f4 g8B Nf8 Bh3 f1B Rh2 f2 Nc3 f3 Re3 Bd3 Bge6 f1Q Bef5 f2 Nd1 Qe8 d8N Qg2+ Ng4 f1B d7 Bfe2 Rc1 a1Q Nf7 Qab1 d8R Be6 Ne5 Ra1 Nbd7+ Ka6 Nb6 Bf3 Ned7 Qh5+ Kf6 Qca2 Rc5 Rg8 Qb2 Rg7 Ngf2 Rg4 Nh1 Rb4 Ng3 Bg4 Nf1 Qg3 Rf2 Qh2 Qe5 Qe2 Qb2 Qf3 Rfc2 Qfg2 Rd2 Qc1 Rde2 Bb1 Rf2 Ba2 Rfc2 Qe8 Kg5 Qb1 Nf3 Qf7 Ng1 Qh5+
Q1nqB3/NKP1n1N1/1N6/R1rR1R1R/6k1/B1b2p1n/qRbN1q2/1bb5 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d3 c5 d4 cxd4 h3 g5 gxf5 a5 h4 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Ke7 Kd3 h5 Kc4 d5+ Kc5 f3 b4 d3 c4 h4 e4 g3 g6 h3 e5 h2 e6 Kf6+ e7 d4 b6 d2 b7 Kg5 b5 g2 g7 a4 f6 a3 b6 a2 f7 d3 Nh3+ Kg4 Nf4 g1N Nd5 Rh7 Ba3 Kh5 Qa4 d1Q Qa8 Qe8 Nd2 Nc6 b8N Ba6 b7 Qb3 Nb6 Na7 Nc6 Kg4 b8R Nc8 Na7 Qd8 Kc6 Nh3 e8N Rh5 c5 Qc2 Rd1 a1B Rb7 Bd6 f8R Bc3 Rf5 Bf4 Rb8 Bc4 Kb7 Ba2 c6 Nge7 c7 Bb1 g8R+ Bg5 Ng7 Qa2 Rh8 Bh6 Ra5 Rc5 Rf8 Bf4 Rf5 Bh6 Ne4 d2 Bb5 Be3 Be8 Bf4 Rc1 d1B Nd2 Bdc2 Rce1 Bg5 Ree5 Bf4 Rd1 h1Q Rd5 Qg2 Rh1 Qf2 Rh2 Ng1 Rhh5 Nh3 Ka6 Bfe5 Nbc4 Bb2 Rb4 Bh2 Kb7 Bc1 Rb2 Be5 Nb6 Bc3
2r1rr2/2N5/RB4k1/1PKR4/2b2Bb1/1Bnp1N1Q/Bb3q1N/N2Nbrb1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 f4 hxg5 Nc6 g6 Nd4 g5 Nf5 d4 cxd4 exf5 Bb7 f3 Bxf3 Ra4 Bb7 Ra1 Bc8 Kf2 h5 b4 e5 c4 d5 c5 a5 f6 f3 c6 d3 Ke3 f2 f7+ Ke7 c7 e4 Kd4 h4 b6 h3 b7 e3 b8N h2 b5 d2 g7 a4 g6 Kf6 Qh5 d1B Nf3 e2 Nc6 e1B Nb4 a3 Bf4 a2 Nc3 Ra6 Qh3 Ra5 Bc4 f1R Bb3 Bf5 c8N Ne7 g8B Be6 g7 Kg6 Nb6 Ra8 Kc5 d4 Nc2 d3 Nbd5 Rc8+ Nc7 Be2 Nd1 Bc4 Be5 Qd7 Bf4 Qg4 Rg1 h1R Rg2 Rf2 Rh2 Qh4 Rg2+ Kf6 Rg5 Rhf1 Rd5 Qg3 Bh7 Qg2 g8N+ Kg7 Bf5 Qg1 Bg4 Kg6 Nh6 Bg7 f8B Bb2 Bg7 Rhe8 Be6 Qg2 Bd4 Qg3 Nh2 Bg4 Nf7 Rf3 Ng5 Qf2 Bd6 Rff8 Ngf3 Nc6 Be3 Nd4 Bdf4 Ne2 Rc1 Bbc3 Na1 Bcd2 Rc2 Nc3 Bd4 Be3 Re2 Qh4 Bg8 Bg1 Re6+ Qf6 Ra6 Qb6+ Kb4 Qf6 Bb6 Qd4 Be6 Qf2 Rf5 Bd5 Bc4 Re7 Bg8 Re3 Kc5 Be6 Nc2 a1B Ba2 Bb2 Na1 Bd7 Bgc4 Be6 Bcb3 Bc4 Rd5 Ree8+
n2N4/Q3N2B/2P2NKb/Bn4R1/B2Nn2p/2B1n3/q1qn4/NrnR1b1k w - - 0 1 legal: proof: f4 g5 fxg5 b5 g6 a5 d4 c5 h4 cxd4 a4 f5 axb5 f4 g4 Ra6 e4 Rf6 g5 Rf5 h5 Bg7 h6 Bxh6 exf5 Bf8 Ke2 e5 Kf3 Ke7 Ke4 Kd6 c4 h5 b4 h4 g7 d3 g6 d2 b6 f3 b5 a4 b7 f2 f6 a3 Kf5 e4 c5+ Kd5 b6 a2 f7 e3 c6 e2 Qe1 d1N Bh6 Nc3 Bd2 Na6 b8N Nf6 g8N Nc7 g7 Ba6 b7 Nfe4 Na3 N3b5 Ba5 Na8 Nc2 d6 Rb1 a1Q Kg6 Qa2 Na1 Rh7 Qb4 e1N Nd7 Nd3 b8B Nc1 Qa4 Qb6 Ba7 Qc5 Nf3 Qcc2 Nd4 Rh5 Be2 f1N Rg1 Nfd2 Bd1 Rf5 Bc5 Rf1 Ndf6+ Ke5 Ne7 Kf4 g8B d5 Ba3 Bh6 f8N Ke3 Rg4 Kf2 Nfe6 Re1 Nd8 Rh1 Rf4+ Kg2 Bh7 Rg1 Rf2+ Kh1+ Rg2 Rf1 Bb2 Re1 Ndb3 d4 Bbc3 d3 Nd4 Bc8 Bcb4 Bh3 Rg5 Bf1 Bc3 Nf3 Be2 d2 Bc4 d1N Bb3 Ne3 Qa3 Re2 Ba4 Re1 Qc5 Nfd2 Qa7 Ncb3 Rd1 Nc1 Qa6 Nb6 Qb7 Na8 Qa7 Ne2 Rc1 Qcb2 Rc2 Rb1 Rc1 Qc2 Rd1 Nc1
1Bk3KB/Br3b2/B1NP2B1/qp4nN/Bb1bn2n/2Q2R1n/2qbR3/1Q6 w - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 c4 g5 fxg5 f4 g6 d5 cxd5 Ra6 b4 axb4 g5 Rf6 h4 Rf7 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kd3 c5 Ke4 h5 Ke5 c4 a4 e6 d4 h4 g7 h3 f6 h2 a5 c3 f7 f3 g6 f2 a6 b3 a7 c2 a8B b2 d6 Nf6 g8B Bb7 d5 Nh5 g7 Qb6 Ra2 Nf4 Kf6 e5 Be3 c1B Ne2 e4 Na3 b1Q Nc4 Ne6 Nf4 Nc7 Bd3 f1N Re2 Ne6 Ne5+ Kc8 Nc6 Nd2 Nh5 Rh7 Rf1 h1N Rf3 Qa5 Ba7 e3 Bg6 Nf2 Qc2 Qba2 Qb1 Na6 Bb8 Qb3 Ba7 Ng5 d7+ Kc7 d8B+ Kc8 d6 Nc5 Bdb6 Nfh3 Bb8 Qc2 B6a7 Bb2+ Ne5 Bc6 Bb7+ Kd8 Bc8 Be8 Ba6 Ba3 Nc6+ Kd7 Ref2 e2 Rg2 e1B Re2 Rh8 B8h7 Bb4 g8Q Bh6 f8B Bf2 Qd5 Bd4+ Qe5 Rg8 Be7 Rg7 Bg8 Rh7 Bb3 Rg7 Ba4 Nce4+ Kf5 Rf7+ Bf6 Rh7 Bh8 Re7 Rb3 Ndf3 Qc5 Rg7 Qc3 Rh7 Ne5+ Kd8 Ra3 Rb7 Nc6+ Kc8 Rb3 Nh7 Ke6 Bd2 Ra3 Nh4 Rb3 Bd7+ Kf7 Be8+ Kg8 N7g5 Qcb2 Nf4 Rf3 Nfh3 Qc3 Bf7+
1QQ2r2/NQ1KN2Q/P3q2b/2R2pr1/1Q2R1Bk/b6n/qQ1bb3/rBr5 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 b4 axb4 g5 f5 Bb2 Nf6 gxf6 h6 c4 Nc6 cxd5 Ne7 Bd4 Ng8 Be3 Rh7 Bf4 Rh8 Bg5 hxg5 Kf2 Kf7 Ke3 Kg6 Kd4 Kh5 h4 b5 a4 b3 e4+ g4 a5 g5 e6 c5+ Ke5 b4 d4 c4 a6 c3 f7 b2 d6 c2 d5 c1B e7 b3 e8Q Bb7 Ke6 Ra7 d7 Rh7 d6 Rg7 e5 Qb6 d8Q Qb5 d7 Bf3 Qb6 g3 d8Q g4 Qe2 g2 Ra4 g3 Na3 b1Q Qb7 b2 Qdb8 Qb3+ Kd7 Bb4 e6 Ba5 e7 Qb4 f8Q+ Rg6 Nh3 g1B Nb5 g2 Qec8 Qa2 e8B b1R Qb2 Qbb3 Re4 Bad2 Bd3 Nh6 Qb4 Ra8 Na7 Ra1 Bb1 Be2 Nf4+ Kg4 h5 Bc5 Rf1 Nf7 h6 g1R h7 Ng5 h8Q Nh3 Qh7 Rg5 Bh5+ Kh4 Re1 Bf8 Bg4+ Bh6 Nd5 Rf1 Ne7 Qg8 Q2e5 Ba3 Rc1 Rh1 Rc5 Rc1 Qeb2 Qgb3 Qcg8 Qe3 Qh2 Re8 Qhb8 Rf8 Qe6 Qeb3 Qec6 Qg8 Qcc8 Qge6+
1NB5/1RN4p/4q3/K3Q1Bk/R2b1r2/2Bqrq2/bBrPq1R1/1nR2B1r w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 f5 e4 Kf7 e5 Kg6 e6 c5 b6 a5 e7 a4 d6 c4 b7 f4 b8B a3 b5 g2 b6 f3 b7 c3 d7 g3 Be5 c2 b8R a2 Nc3 f2+ Ke2 Nf6 Kd3 Ra4 Nf3 g1Q Nb5 g2 Kc3 Rf4 Nfd4 Bg7 Kb4 Re8 Nc7 Qh2 Qe1 g1R Bb2 c1R Ka5 Ne4 Nc6 Nc3 Rb7 Nb1 Bec3 Rc2 Nb8 Kh5 g6 Bd4 g7 Qh3 g8R Qh2 Bc4 f1Q Rg2 Qf3 Qe6 Rd1 Bf1 Qhh3 Rhg1 Re1 Qf6 Qe6 Qg7 Re3 Qg3 Rg8 e8B+ Rg6 Bf7 Qde7 Bg8 Rh6 d8B Qe8 Bf6 Qg6 Bg5 Qd3 Rb6 Ba6 Rb7 Bc4 Qe1 Na3 Rc1 a1Q Rg4 Qb1 R1g2 Ba2 Qg3 Qde2 Bf7+ Qg6 Be6 Qg8 Bc8 Qe6 Ba1 Qbb3 Bab2 Nb1 Qe1 Kg6 Qg3 Rh1 Qe1 Kh5 Qg3 Rf5+ Qe5 Qbc4 Re4 Qcd3 Rf4 Ba7 Rc4 Bd4 Ra4 Rf4
BNr3N1/kpN1r3/2n5/1B2RR1Q/2bqB3/3Pr2q/KbN3r1/Bqq1N3 w - - 0 1 illegal: No possible last move
1n4bR/NQ2Kn2/Pqq4n/3BRq1b/1R2QBRq/1R2pR2/1N2k3/3q2b1 w - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 cxd5 a5 b4 axb4 f4 Nd7 f5 Nb8 g5 b5 h3 h5 h4 Ra6 Ke2 Rf6 gxf6 g5 Kf2 g4 Ke1 Rh7 Na3 Rg7 Nb1 Rg5 hxg5 Bd7 Kf2 Be6 Ke1 Bc8 Ke2 Kf7 Ke3 e5 d4 c5 a4 g3 g6+ Ke8 a5 Kd7 a6 Kd6 g7 b3 f7 g2 f6 c4 Nd2 b2 Ra4 b1Q Qb3 b4 Ngf3 g1N Rh3 h4 Bg2 Nh6 g8R c3 Rg4 c2 Qc4 b3 Rb4 Be7 f8Q b2 f7 Be6 Qg7 Qb6 f8R Bg8 Qf7 Bd8 Qb7 Bc7 Rhg3 h3 Qd3 h2 Nc4+ Kd7 d6 Ke6 d7 h1Q d8R Nh3 Rff4 Ng5 Rd5 Qd1 Rc5 Ngf7 d5+ Kd7 d6 Ke6 Bd2 c1Q d7 Qbc2 d8R b1B Qd4 Bd6 Rcb5 Bc5 Nb2 Ba2 Rf8 Bc4 Rb3 Be2 R5b4 Q1b1 Rf5 Qc6 Rh3 Ba7 Rd8 Q2c5 Rd5 Q5b6 Rc5 Qbc2 Qd3 Qcb1 Nd4+ Kd6 Ra5 Bf3 Raa3 Kc5 Nb5 Qbc2 Ra5 Be2 Rff3 Qcb1 Kf2 e3+ Kg3 e4 Kh4 Qbc2 Qdd7 Qd3 Qe6 Qdd7 Kh5 Qdc8 Kg6 Q8d7 Qf6 Qf5+ Kg7 Kd5 Kf8 Kc5 Qg6 Kd5 Rf1 Bf3 Qh7 e2 Bf4 e1Q Ke7 Be2 Rff3 Qh4+ Kf8 Qc7 Rh1 Bg1 Rh2 e3 Na7+ Ke6 Rd5 Q7b6 Re5+ Kd6 Re6+ Kd5 Qg6 Bc4 Re5+ Kd4 Qe6 Bh7 Rh1 Bg6 Rhh3 Bh5 Qe8 Qg3 Ke7 Qh4+ Rg5 Qf2 Qd8+ Nd6 Qa8 Bg6 Rfg3 Ng4 Qb7 Be8 Rh6 Bh5 Rh8 Nh6 Rh3 Qh4 Qg8 Qfc8 Qh7 Qcg4 Qb1 Qf5 Be4 Bg4 Rf3 Bh5 Rbb5 Bg8 Bd5 Qf2 Rg4 Ndf7 Ra5 Qh2 Rb4+ Kc3 Qe4 Kd2 Ra3 Ke2 Rab3 Qh4+
1n1B2kb/nQn5/r3p1K1/2bPNB1B/5Rq1/2NN2r1/N3bBp1/R4Nr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 g5 Ke4 b5 h4 c5 f4 b3 d4 b4 a4 c4 h6 c3 h7 c2 d6 b2 d7 b3 f6 g4 Kf5 g3 h5 g2 h6 Nc6 a5 Na7 a6 Qb6 Ne2 Qd6 Ng3 Qb4 Nc3 b1N Qg4 b2 Be2 Qb8 Rf1 Na3 Be3 c1B Bf2 b1R Na2 Nc6 a7 Ba6 d8B Ke8 f7+ Kd7 Kg6+ e6 f5 Bg5 f6 Bg7 f8Q Rb5 f7 B7f6 Qg7 Qd6 f8N+ Ke8 Qb7 Rb3 Nd7 Qf8 Nc5 Nb5 Na4 Nc7 N4c3 Be3 Bd3 Bg7 Bf5 Nf6 d5 Rg8 h8N Bc5 h7 Be2 Nf7 Rb1 h8N Nd7 Ne5 Ndb8 Nhf7 Rd1 Nd3 Bh8+ Kh5 Rg7 Nfe5 Re1 Be3 Qf6 Rf4 Kf8 Bf2 Rg1 Nf1 Rg8 Qf3 Rg3 Qg4 Qh4+ Kg6 Kg8 Rd4 Rh3 Rc4 Qg3 Rd4 Qf3 Rf4 Nba6 Nac1 Rg3 N1a2 Rc8 a8B Na7 Qb4 Rb8 Bc6 Rb6 Be8 Nb8 Qb5 Ra6 Qb7 Nd7 Kg5 Nb8 Bh5 Bf8 Kg6 Bb4 Kg5 Bc5 Kg6 Qxg4+
q1r4N/pB1N4/1Rp1Pb1k/NNr5/1nq1Nn2/2r3B1/Q2qQbR1/3N1K2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 f5 e4 Kf7 d4 Kg6 d6 h5 b6 h4 g5 f4 e5 h3 d7 f3 e6 h2 b7 c6 b5 Rh3 d5 Kh5 g6 Qg5 d8N Rh4 d6 Qf5 d7 Qc5 g7 Qd5 b6 Bb4+ Nc3 Nh6 g8N Qd4 Ba6 Qf4 Ra2 Kg5 Qe2 Nf5 Nf6 Nd4 Ne4+ Kh6 Nh3 g1B Nhf2 g2 Nd1 Be7 Nb5 Bf6 Rc2 Qg5 Bf4 Rh3 Bg3 Be3 Rg1 h1R Rb2 Rh5 Rb3 R1h3 Qa2 Ne2 Nf7+ Kg6 d8N Nf4 Nh8+ Kh6 Rb4 Qg8 Qe2 Rc5 Rb1 Nd7 b8N Ne5 Nd7 Rc8 b7 Bf2+ Kd2 Qf8 b8Q Ned3 Nb7 Nb4 Na5 Qd8 Bb7 Qg8 Rh1 g1Q Rh2 Qg2 Qe5 Qf8 Qd5 Qd8 Bh4 Qgg8 Bg3 Qgf8 Rg2 Qd6 Na3 Qb8 Qdc4 Qa8 Nb5 Qf8 Nbc3 Qd6+ Qed3 Na2 Bh4 B2d4 Rb6 f2 Nb5 Nb4 Qa2 f1Q Qf3 Qc4 Ke1 Rg3 Qfe2 Bf2+ Kf1 Rc3 Bg3 Qd2
NN5N/NRRRbqr1/2np3k/2R5/nnQ2n2/1r2P3/2p1bB2/RB3Kb1 w - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 b5 axb5 Bb7 gxh5 Bc8 b4 Nc6 b6 Rb8 b7 Ra8 b5 Nb8 b6 Bb4 Qa4 Bd6 Qd1 Bf8 d4 Qg5 Kf2 Qb5 cxb5 Bc5 Bd2 Bxd4+ Be3 Bc3 Bc1 Bd2 h4 Kf8 h6 f5 h7 a5 h5 c5 h6 g5 e3 g4 Be2 c4 Bf1 a4 Rh3 c3 Ba3+ Ne7 Rh5 c2 Bc4 f3 Qe2 g3+ Kf1 g2+ Kf2 f4 Rc5 Nd5 Nh3 g1B+ Kf1 f2 Nc3 Nb4 Ng5 Ra7 Ba2 N8c6 b8N Ba6 b7 d6 b6 Be1 Bc1 a3 Nb5 Rg8 h8N Rg7 h7 Ra8 Kg2 f1N Qc4 Bh4 Bb1 Ng3 Na7 Nh5 Kf1 f3 Bd2 Nf4 Be1 Bb5 Bf2 Ba6 Ne4 Be7 Nf6 Bb5 Ne8 Ba6 Bh4 f2 Nc7 Bb5 Nba6 Rb8 Na8 Rg2 Bg3 Kg7 Bh4 Kh6 Bg3 Re8 b8R Rf8 Rb7 Rb8 Bh4 Rg5 Rd7 Rg7 Ba2 Rb7 Nb8 Ba6 Rc1 Bb5 Bb1 a2 Rd1 a1N Re1 Rc7 b7 Nb3 Rd1 Nca5 Rc1 Rc6 Rd1 Rb6 Rcc7 Nac6 Rd5 Nfd3 Rc5 Nf4 Rf5 Bh2 Ba2 Rg2 Qd3 Na6 Nf7+ Kg7 h8R Ncd4 Nbc6 Rg4 Rb8 Nd5 Nh8 Bg1 Bg3 Kh6 Kg2 Nbc5 Qb3 Bd3 Qc4 Na4 Rg5 Nf6 Rc5 Be2 Rf8 Nh5 b8R Rb1 Rbb7 Nb4 Nb8 Rb3 Rff5 Ndc6 Rfd5 Bf8 Rd1 Be7 Ra1 Rg7 Bb1 f1Q+ Kh1 Qf7 Kg2 Bf3+ Kf1 Nf4 Bf2 Be2+
n3k3/Nbqr3b/1NP3NQ/rp1bK3/1rN2BR1/1p6/N2N1R1b/3QB1n1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 h5 g4 e6 gxh5 Ra5 Bc4 Ra8 Bd5 exd5 Ke2 g5 Kf3 b5 c4 d4 Ke4 d5+ Ke5 g4 h4 d3 f4 b3 a4 d4 h6 g3 a5 d2 c6 g2 c5 d3 h5 Be6 c7 Qh4 c8N Qh3 h7 Qg3 c6 Na6 h6 Qe1+ Ne2 g1R f6 Qh4 f7+ Kd8 f5 Be7 f8N Bd7 f6 Rg4 f7 Rb4 Na7 Nc7 a6 Bc8 Rf1 Bb7 Nd7 Nf6 f8B Nh5 Nec3 Ng3 Ra4 Ne2 Na2 Ke8 Nb6 Ng1 Nc4 Qh2+ Rf4 Rg8 h8N Rg7 h7 Bd8 Ng6 Rd7 h8Q Be7 Qe2 d1B Nbd2 Bc2 Qd1 Qg3 Qh6 Bd6+ Kf5 Qh2 Rf2 Bg3 Bd6 Bb1 Bf4 Bc2 Nf3 d2+ Ke5 Bf5 Bb2 Be6 Bc3 Bd5 Qa1 d1B Be1 Bc2 Nfd2 Qg2 Qd1 Bh2 Nc8 Qg3 a7 Rb8 a8N Bb1 Nab6 Ra8 Qc1 Ra5 Qd1 Na8 Na7 Bd3 Nh4 Bh7 Ng6 Qf3 Qg5 Qh3 Qh6 Qg3 Kf6 Re7 Bb8 Rd7 Nce5 Rd4 Rb4 Rd3 Rg4 Rd4 Bc7 Rb4 Nec4 Qc3+ Kf5 Qh8 Bf4 Qf8+ Ke5 Qd6+ Kf5 Qb8 Kf6 Qd8+ Ke5 Qc7+
QqRrb1Rn/NRn3nK/1B3BNp/4p3/B4bkb/7q/4bBP1/1R2B3 w - - 0 1 legal: proof: c4 a5 f4 f5 e4 fxe4 a4 b5 axb5 g5 h4 d5 cxd5 gxf4 Ra3 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Qd6 Na3 Qd7 Nb1 Qd8 Ke2 Kd7 d4 e5 b4 c5 g6 e3 Kd3 f3 Ke4 a4 Kf5 f2 b6 a3 g7 e2 d6 e1Q b7 h6 Kg6 Ke6 d7 c4 b5 a2 b6 c3 d5+ Ke7 d6+ Ke6 Bb5 f1B Na3 c2 Nf3 Qe7 d8B Qe2 d7 Qh4 Bf6 Na6 d8B Be7 b8R Nc7 b7 Qh3 Rb1 a1N Nh4 Bd7 Bd2 c1B Qa4 Nc2 Rc8 Nd4 b8B Nf5 Be1 Bf4 Qa8 Qb2 Ba4 Be2 Ba7 Qb8 Nb5 Bc6 Baf2 Bd7 Na7 Bdb5 Nf3 Bc6 B6h4 Bf6 Rb7 Nge7+ Kh5 Bd7 g8R Ng6 Bb6 B6g5 Bf6 Be8 Rf1 Rh7 Bef2 Rd7 Re1 Rd8 Rb1 Nd6 Be1 Kf5 Bef2 Nf7 Be1 Nf8 Bef2 Nfe6 Be1 Ke4 Kg6 Ng7 Bhf2 Nh8+ Kh7 Kf5 Nh4+ Kg4 Ng6 Bh4
bN1qb3/B2b1R1B/N4Pr1/1q1BQR2/2rqb3/Rp6/2Rpk1KB/1nB5 w - - 0 1 illegal: No possible last move
R1N1rR1N/qp1p1rPB/3q1r2/Q1q4R/4RN2/1b1B1K1n/1R1q3b/6Nk w - - 0 1 illegal: No proof kernel forced: wxLB
r2Q2R1/bb4n1/NN3r1r/1B1Nq1Nr/1KrP2kp/BN1B1p2/8/R4rB1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Ke7 e4 h5 b6 c5 e5 a5 b7 f5 b8N a4 e6 g2 g6 Kf6 d6 Kg5 e7 a3 e8B c4 g7 g3 b5 c3 d7 f4 b6 c2 b7 a2 Nh3+ Kh4 Na6 g1R b8N f3 Ba3 c1R Ng5+ Kg4 d3 h4 Kd2 Qb6 d8B g2 Nd7 Qb5 Nb6 Ne7 g8N Qe5 Bb5 Nf5 Ne7 Rh6 Ned5 Bc5 Be7 Bf2 Bec5 Rc4 Be2 Rf1 Rg1 Ng7 Be3 Rd4 Kc3 Bb7 Nd2 Rc4+ Kb3 Rf8 Bd4 Rff6 Be3 Rcc6 Kb4 Rh5 Nb3 Rce6 Rc1 a1R Rc8 Rfh6 Rg8 Ref6 Rh1 g1R Qd2 Rfc1 d4 Bg3 Bed3 Rgf1 Bg1 Rc8 Qc3 Ra8 Qc7 Rac1 Rh2 Bf4 Ra2 Rc5 Ra1 Rc4+ Ka5 Qe7 Qd8 Bb8 Rc1 Ba7 Ra1 Rcc1 Ka4 Qe5 Kb4 Rc4+
Bnr2rR1/k2p1NQr/3P4/4BR2/1nR1q3/3rR2N/pBRK2B1/2n2b1n w - - 0 1 legal: proof: b4 c5 a4 g5 h4 g4 bxc5 b5 f4 e6 f5 exf5 axb5 Bh6 g3 Bg5 hxg5 f4 Ba3 fxg3 Bb2 Qf6 Bc1 Qd8 c4 f5 e4 h5 d4 a5 e5 f4 e6 g2 c6 h4 e7 h3 b6 f3 g6 f2+ Kd2 a4 c7 a3 b7 a2 d5 h2 g7 g3 c5 Ra3 c6 Rh7 Nc3 Nf6 g8R+ Kf7 e8R Qe7 Qg4 Ra8 Bb2 Qe4 Nh3 g1N Bg2 f1R Nb5 Ne2 Rc1 Rf2 Rhg1 h1N Rc4 Ra3 Ref8+ Ke7 Re1 Nc1+ Re2 Rf5 Re3 Rc3 Nd6 Rd3+ Ke1 Rf2 Nf7 Rf3 Qg7 Rf5 Bf1 g2 Rc2 g1R Rc4 Rg3 Bg2 Rc3 Kd2 Rf4 Ne5+ Kd6 Rf7 Ng4 Rf5 Ngf2 Nf7+ Ke7 Rh5 Nfd3 Rg5 Nb4 Rf5 N8a6 b8B Rgf3 Ba7 Nb8 Bd4 Ba6 d6+ Ke6 Be5 Kd5 c8R Bb5 Rd4+ Kc5 c7 Kb6 Rc4 Ba6 Rce8 Rg3 c8B Ka7 Bb7 Rf1 Rec8 Rf4 Rd4 Bf1 Ba8 Rc5 Rc6 Rgf3 Rc4 Rg3 Rb6 Rc8 Rbc6 Rgf3 Rc2 Rg3 R6c4 Rgf3 Rg5 Rf6 Rf5 Rg3 Nfg5 Rff8 Nf7 Rf3 Re2 Rc3 Re3 Rd3+
2n1NnR1/3NN2B/1b2R3/2pbn1rr/1k5N/pP2Q2B/K2n2Bn/3N1B1n w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 h4 g3 b3 Nf6 h5 Bb4 Ba3 Be7 Bc5 Kd7 Bd4 Qg8 Bf2 Qg6 hxg6 Bb7 Qc2 gxf2+ Kd1 Ke8 g4 Ba6 g5 Ng8 Kc1 Bc8 Qd1 Bf8 Kb2 Kd7 d4 Kd6 e4 c5 g7 h5 b6 f5 g6 a5 b7 a4 e5+ Kc7 e6 Kd6 e7 a3+ Ka2 h4 e8B h3 Qf3 h2 Nc3 Ra7 Bc6 Be6 Nd1 Rh7 Qe3 Ne7 g8B f3 g7 Rh5 Bh7 f4 g8B Nd7 b8N Nc8 Rb1 Kc7 d6+ Kb6 d5 Ka5 Bf5 Rb7 B5h3 Kb4 Bh7 Be7 Ra1 Nf8 d7 Rb6 d6 Bd5 d8N Bh4 Ne6 Bd8 d7 Bc7 Bfd3 f1N d8N f2 Nf3 Nd2 Nd7 f1N Rg1 h1N Rg8 Nc4 Nh4 f3 Ng7 f2 Ne8 Nh2 Bdf1 Ne5 Rb1 Rg5 Rb2 Rb7 Re2 Bb6 Re1 Rc7 Bb7 Rc6 Re2 Rh6 Nc6+ Kb5 Ne7 Rhh5 Ba6+ Kb4 Bfg2 f1N Re1 Nd2 Baf1 Ba7 Qf2 Nec4 Re6 Bb6 Qe3 Ne5
1Bb4R/1n1P2R1/qp1p4/q3N3/4RBB1/Q1R1qNnB/2q1kqK1/1q2bR2 w - - 0 1 illegal: No possible last move
b7/Q2B3p/1Rp4B/4qB2/2nBrrb1/BRN1r3/n1kpPNQn/5BK1 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Qg5 b6 Qe7 b7 Qd8 d4 c6 b5 Bh6 c5 Qb6 cxb6 Bf8 d5 Be7 d6 Bf6 Nh3 Bd8 Ng1 Bc7 dxc7 Kf8 Ra5 Ke7 Ra1 Ke8 Kf2 Ke7 g4 Ke6 g5 Ke5 g6 d5 g7 f5 Rh2 a5 Qc2 Kd4 Kg2 h3+ Kh1 f3 Bf4 f2 Bg5 f4 Bh6 a4 Bg5 a3 Qf5 f3 Qf8 a2 Qd8 Ra4 Be7 Nf6 g8B Ne8 Ba3 Na6 b8Q Nb4 b7 Nd6 b6 Nc4 Be6 Re8 Bd7 Re3 Rg2 h2 Qa7 Na6 b8B Bb7 c8B Nb4 Nc3 Ba8 Rb1 a1Q Rg5 Na2 Rg3 Rb4 Qg5 Qb2 Bfh3 f1N Bf4 f2 Bhf5 Ra4 Nh3 Qb5 Kg2 h1R Rf3 Nh2 b7+ Qc5 b8B f1B+ Kf2 Bg2 Rg3 Bf3 Rb6 Bg4 Qg6 Qd6 Bh6 Qe5 Kg2 Re4 Nf2 Rb1 Bbd6 Rb3 Kg1 Rf4 Be7 Rab4 Bf6 Ra4 Rg2 Ke3 Qg5 Kd2 Rg3 d4 Bfg7 d3 Qg6 Qc5 Bd4 Kc2 Rh3 Qe5 Rf3 Bh5 Qg2 Re4 Bh3 d2 Bdf5 Bg4 Bcd7 Bb7 Qh1 Ba8 Bf1 Rab4 Qg2 Ra4 Nd5 Re3 Rh3 Rf3 Rg3 Rf4 Rgb3 Ra5 Nc3 Rd5 Be3 Rd3 Bd4 Rde3
NNn4b/p3B2Q/1N2Q2q/1rP2pBr/1N3NR1/kpb4r/5K1N/2R2b1n w - - 0 1 legal: proof: b4 c5 d4 e5 dxc5 h5 g4 b5 gxh5 Ba6 Bg2 Bc8 Bd5 e4 Bb3 e3 a4 bxa4 fxe3 axb3 e4 Nh6 e5 Ng8 h4 Ke7 c4 f5 e4 g5 e6 d5 e5 d4 h6 g4 h7 g3 b5 d3 h5 g2 h6 d2+ Kf2 Nf6 b6 Bb7 c6 Nbd7 c5 Ng8 c7 Bc8 b7 Ndf6 b8N Ba6 c8N+ Ke8 e7 Qa5 Rh4 Bf1 Na3 Bb5 Rg4 Qb6 Nc2 Bf1 Nf3 Nh5 Nb4 Bg7 Nh2 Ng3 Qe1 d1R Bg5 Qe6 Rc1 Rd3 Nb6 Kf7 e8N Ne7 Qe2 Nc8 Nc7 Qf6 Ncd5 Ke6 N8a6 Rb8 Nf4+ Ke7 e6 g1B+ Ke1 Rb7 Nb8 Bd4 Qe4 Be5 Kf2 Bc3 Qe1 Kd8 e7+ Kc7 Qe6 Qf8 N8d7 Rb8 e8N+ Kb7 Nc7 Qd6 Na2 Kc6 Nca8 Kb5 Nb4 Rb7 Nb8 Qc6 N6d5 Ka4 Ndb6+ Ka3 Be7 Nh5 Bg5 Rh3 Be7 Ng3 Bg5 Rd8 h8B Bge5 Bg7 Rh8 Bf8 Rhh7 Bfe7 Bh8 N6d7 Rb5 Ndb6 Rf7 h7 Rf6 Qf7 Rfh6 Qg8 R6h5 Qe6 Bhe5 h8Q Bed4+ Qe3 Qh6 Qh7 Bh8 Qe6 Nh1+
1NkBqQ2/2b1p2r/2nq1q2/7r/QR1pN3/p2Q1Q2/n3QB1P/1R1KQ1b1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 exf5 b5 axb5 Nh6 g4 Nc6 g5 Nb8 f6 Ng8 Be2 Ba6 Bg4 hxg4 f5 Qb6 Ra2 Kd8 Ra1 Kc7 Nf3 Bb7 Ng1 Bd5 g6 Bf7 gxf7 Kd6 Nd2 Qc7 Nb1 Qd8 c4 Kc7 b4 a5 b6+ Kc8 b7+ Kc7 c5 d5 b5 g5 b6+ Kd7 c6+ Kd6 c7 Kd7 c8Q+ Kd6 Qc3 Kd7 Ra4 d3 Nf3 d4 Nbd2 g3 Rb4 g2 Qa4+ Nc6 b8Q g1B b7 g4 Ne4 g3 Be3 d2+ Kd1 g2 Qd3 Rh5 Bf2 Bh6 f8Q Bf4 f7 Nf6 Qe5 Nd5 b8B Kc8 f6 Qe8 Bc7 Rb8 Bd8 Nc3+ Kc2 Na2 Kd1 Bg3 Qh8 Rh7 f8Q Rb5 f7 Rc5 Qh5 Bc7 Ne5 Rd5 Nd7 Rb5 Qaa3 a4 Qhe2 Rbh5 Qac3 a3 Nb8 Qd7 Qe8 Qd6 f8Q Qf6 Qc1 Qd6 Qff3 Qf6 Kc2 Qd6 Qhf8 d1Q+ Kb1 Qd2 Qce1 Qg5 Kc2 Qge5 Kd1 Qef6 Bg3 Be3 Rf1 g1Q Bf2 Qgg6 Rg1 Ne5 Qa4 Nc6 Rg5 Qgf7 Rgb5 Qe8 Rb1 Bd2 R5b4 Be3 Bh4 Bg1 Bg3 Qf5 Bf2 Qff6
1qNB2N1/3b2B1/NB1Nq1p1/4b1r1/BRK3nR/2N4p/1P1Q1p2/kb3n1q w - - 0 1 legal: proof: c4 a5 g4 e5 a4 b5 axb5 f5 f4 d5 cxd5 Qd6 Nf3 Qh6 Rg1 Qxh2 Rh1 Ra6 Ng1 Rf6 Qb3 exf4 Qd1 f3 Nh3 f4 Ng1 Rf5 gxf5 Qh3 Ra4 Qh6 Ra1 Qh2 e4 Kd7 d4 Kd6 b6 c5 f6 h5 f7 f2+ Kd2 g6 Kd3 h4 b7 f3 Be3 a4 Nh3 a3 Qd2 a2 Kc4 Bg7 f8B+ Ne7 Ng5 Rh5 Nh7 Be5 Bg7 Bd7 Nc3 Rg5 Nf6 Nbc6 b8N Nf5 Ng8 Ng3 Na6 Qh3 Be2 Qe6 Bd1 Nf1 Rc1 a1Q Ba4 Qb1 Re1 Qc2 Ra1 Qd1 Ra3 Qe1 Rb3 Qe8 Rb4 Qb8 Rg1 h3 Rg4 Ne7 Rf4 Nf5 Rh4 Nh6 Nf6 Ke7 d6+ Ke6 Ng8 Ng4 Rb3 Bc8 d7 Kd6 d8N Bd7 Nc6 Ke6 d5+ Kd6 Kd3 c4+ Kc2 Qe2 Bb6 Qe1 Rb4 Qe3 Ne2 c3 Kb3 c2+ Nc3 c1Q Na7 Qee1 Na2 Qcc8 Nc3 Qe8 Kc4 Qe6 Kb3 Ng3 Kc4 f1B+ Qe2 f2 Qd3 Bg2 Qd2 Bf6 Nc8+ Ke5 Qe2 Qh1 Qe1 Kf4 e5 Nf1 Qd2+ Kf5 Qc1 Be4 Qd2 Qf7 e6 Bb1 e7 Be5 e8N Qf6 d6 Qe6+ Nd5 Ke4 Bd1 Ba4 d7 Bc6 d8B Bd7 Ba4 Bg3 Qc1 Be5 Kc5+ Kd3 Nc3 Qb3 Qe3+ Kc2 Qd3+ Kc1 Ned6 Qf7 Qd5 Qe6 Kc4 Bf5 Ncb5 Kb1 Nc3+ Ka1 Nc7 Qf6 Qd2 Bb1 Na6 Qe6+
Bq1R4/7b/1p1nr2N/1pRPR2B/K2Q1N2/N5k1/1r1rrp1R/N1q3Nn w - - 0 1 illegal: No possible last move, all moves rejected
k7/3B2Nr/p4B2/1B1bN1Pp/2rN2r1/B1p1bN1R/KnQ2r1r/R2B3n w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 b6 d5 cxd5 Ke7 b7 Ke8 h4 gxh4 b4 Ne7 d6 Ng8 d7+ Ke7 b5 Bh6 Nc3 Bg7 Nb1 Bf8 Qc2 a6 Ra4 Kd6 Ra2 Qg5 Qd1 Ke7 Ra1 Qc5 Nh3 Qe3 Ng1 Qa7 b6 Kd6 bxa7 Ke7 d8N Kd7 g4 c5 d4 Kc7 Kd2 f5 Kc3 h5 Kb3 c4+ Ka2 h3 e4 f3 g5 c3 e5 f2 e6 h2 d5 f4 e7 f3 e8B Bc5 Bh3 f1R Bc6 f2 Ba4 Ne7 Bhd7 Nf5 Bab5 Nc6 b8N Be3 Nd2 Ne5 Nbc6 Nc4 Ne5 Nb2 Ne2 Rg1 Ndf3 f1R Qc2 Rh7 Ne6+ Kb7 d6 Rg4 N2d4 Ng3 Ng7 Rb8 a8B+ Ka7 Ng6 Bb7 Nge5 Be4 Bd5 Rc8 Bb3 Ka8 B3a4 Rc4 Bb3 Nd3 Ba3 Bc6 Bf5 Rf2 d7 Bd5 d8B Nb2 Bf6 Rf1 Bfd7 Rf2 Rhg1 Nh1 Rg3 Ra4 Rh3 Rc4 Rd1 Ng3 Ra1 h1R Qc1 Rhh2 Bd1 Nh1 Qd2 Kb8 Qc2 Ka8
B1k2r1r/P3BbN1/RBnr2R1/2N1pppr/5R2/6rQ/4B1R1/nK1Rb3 w - - 0 1 legal: proof: c4 a5 f4 e5 g4 h5 gxh5 b5 f5 Qe7 e4 Qe6 fxe6 d5 b4 axb4 exd5 Ra3 c5 Rf3 Ke2 Rf2+ Kd3 Re2 c6 Nxc6 Kc2 Nb8 a4 Kd8 h4 f5 d6 g5 d7 c5 a5 c4 e7+ Kc7 d8B+ Kd7 e8B+ Ke6 a6 c3 h6 Be7 a7 Nd7 h5 Rf2 h7 Ngf6 h6 Ba6 Be2 Ng4 d4 Bb7 d5+ Kd6 Ra6+ Bc6 Rh4 Rg2 Nf3 Rg3 Bb6 Nb8 Nbd2 b3+ Kb1 b4 Ba3 b2 Qb3 Ne3 Nd4 Nc2 Rf4 Na1 Ne6 Bd7 Bf7 Be8 Ne4+ Kd7 d6 Nc6 Ng7 Kc8 Bd5 Bf7 Nc5 Rf8 h8R c2+ Ka2 c1R h7 b1R Rg8 Rh1 h8R Rbc1 Rh2 Rcd1 Rg2 Rh5 Qc3 Rd4 Kb1 b3 Bdf3 b2 Be4 Na5 Ba8 Nc6 Qf3 Bd8 Qg4 Rd2 Qh3 Be7 Rh8 Bd8 Rh6 Rd5 Rg6 Rhh8 Ka2 b1R Bb4 Rh1 Kb2 Bc7 d7+ Kd8 Ba3 Rh2 Kb1 Rd6 Ba5 Bb6 B3b4 Kc7 d8R Rh5 Rd7+ Kc8 Ba3 Bc7 Bb6 Rhh8 Qg4 R2h5 Qh3 Rf6 Rd1 Bd6 Nce6 Bb4 Nc5 Ba5 Nb3 Bd2 Be7 Rd6 Nc5 Be1
NBK1QN2/3n2N1/q4N1k/1P1rrn2/NR1NB1p1/1Q2p1pq/4nR2/1rr5 w - - 0 1 illegal: No possible last move
1q3Qrr/1NPn1N2/k1N1Rpr1/6p1/BRb3B1/p5BN/B2pq3/2K2Bb1 w - - 0 1 legal: proof: g4 b5 d4 c5 b4 cxd4 f4 a5 a4 e5 fxe5 h5 axb5 hxg4 Bg2 a4 Bh3 Nc6 Bf1 Na5 bxa5 Qf6 Bb2 Qe7 Bc1 Qd8 Kd2 g5 e4 d5 h4 Kd7 c4 Kc7 c5 Kb7 e6 d3 e7 g3 e8B d4 b6 a3 h5 g2 a6+ Kb8 a7+ Kb7 h6 f6 h7 Bd6 c6+ Ka6 c7 Bf8 e5 Bb4+ Nc3 Be7 b7 Rb8 a8B Bh3 e6 Ka7 Ba4 Bg4 Ne4 Nh6 Rb1 Bh3 Rb4 Nf5 Nc5 Nd6 Qh5 Rc8 b8N Nf7 Qh6 Ne5 Nb7 Nd7 Nc6+ Ka6 Qf8 Bc5 e7 Be6 e8B Bc4 Nh3 g1R Bf7 Rb8 Rh2 Rh1 Re2 Bb6 Kd1 d2 Re6 Ba7 Kc2 d1Q+ Kb1 Qg4 Bf4 d3 Bg3 Qe2 Kc1 Bg1 Bh5 Rg8 h8N Rg6 Bg4 Rc8 Nf7 Qe8 Nf4 Rh8 Nh3 Qe7 Qh6 Rcg8 Qf8 Qd8 Nd4+ Nb6 Na5 Bb5 Bd5 Qb8 Ndc6 Nd7 Ba2 Bc4 Nb7 d2+
1N2B3/1qq2pP1/1N2B1Q1/1NN1rNRp/p1n5/q5B1/1qp3rn/kB2KR2 w - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 f4 exf4 c3 gxh4 b6 Bd6 Ra4 Be7 Ra1 Bf8 b4 Ba6 d3 Bc4 b5 Bb4 cxb4 c5 Qd2 Ba2 Qd1 c4 Kf2 c3 Ke1 Bc4 dxc4 Qf6 Qb3 Qg5 Qd1 Qd8 e4 Ke7 g4 Kf6 e5+ Ke6 c5 d5 g5 h5 c6 a5 g6 h3 b7 d4 g7 Kd5 c7 d3 c8B Kd4 e6 h2 e7 f3 e8B a4 b6 Nf6 b5 Ra5 Bf4 Ng4 Be6 Qd6 Qc2 Nd7 b8N Rh6 b7 Rg6 b6 Nde5 Na6 Qc7 b8N Nc4 b7 Re5+ Be2 Rgg5 Bg3 Rg6 Nc5 f2+ Kf1 d2 Na3 Rgg5 Qg6 c2 Nf3+ Kc3 Nb5+ Kb2 Rg1 h1Q Nh4 Qf3 Nbd7 Qa3 b8N Qb7 Re1 d1Q Nf5 Qc1 Nb6 Ka1 Bd3 Qb2 Be4 Nh2+ Ke2 Qa3 Ref1 Nb2 Ba2 Nc4 Bb1 Qcb2 Rg2 Ne3 Bd5 Qc7 Rd1 f1Q+ Kd2 Qfd3+ Ke1 Qe4 Be6 Qeb7 Rc1 Rg4 Rd1 Rd4 Rg1 Rd2 Rf1 Rg2 Rd4 Qd3 Rg4 Qda3 Rg5 Nc4+
Nk3K2/N2B1p1R/pp1r2qr/1BR2RR1/p7/Rp2nB2/QP1q4/2b2rB1 w - - 0 1 illegal: Other
2Q4N/nNbn1n2/BB2k3/3r2RN/K2r2Nn/2RRnbqP/3Nr1R1/b5q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Ke7 Kd2 f5 Kc2 a5 Kb3 g5 e4 c5 b6 f3 b7 a4+ Ka3 f2 b4 f4 e5 g3 h3 g2 b5 g4 b6 g3 d6+ Ke6 d7 f3 Be3 c4+ Kb2 c3+ Kc2 a3 Kb3 c2 Qc1 a2 Ne2 g1Q Nd2 g2 Rh2 Nf6 Ng3 Rh4 Nh5 Qc7 Ba6 f1R Ka4 Nc6 b8R f2 b7 Bd6 d8R Bd7 Rbc8 Rd1 b8N Na7+ Nc6 f1N Rb1 a1B Rb5 Rg4 Ne7 Bc6 Ng6 Bf3 Nh8 Nd7 Bf2 Qb8 Rc3 Ne3 Rbc5 Nc4 d5+ Ke7 e6 Bc7 Be3 Rd4 Ra5 Kd6 e7 Re1 Bf2 Re2 e8N+ Ke7 d6+ Ke6 Nef6 Rd5 Qd1 c1N Ng4 Nd3 Bb6 N3e5 Qc1 Nf7 Rc5 Qe1 Ra5 g1N Rg2 Rd4 Rg5 Qg3 Ba5 Qb1 Bb6 Rb8 Bc5 Rb5 Bb6 Bd5 Qc2 Nf3 Qc1 Nh4 Qc2 Nf6 d7 Bf3 Qf5+ Kd6 Qc5+ Ke6 Qf8 Rbd5 Qc5 Bb8 Qc8 Qg1 Re8+ Kd6 d8N Bc7 Ree3 Nd7 Red3 Ke7 Nb7 Ke6 Ra3 Qf1 Rab3 Qg1 Rbc3 Ne3+
N3b2Q/r1r1R2N/R5qB/qNbb3B/1n2qr2/3P2n1/NbN1b3/1KQN1k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 g4 Kd6 e4 Ke5 d6 Kd4 g5 h5 e5 a5 d3 c5 Kd2 f5 Kc2 h3 e6 f3 e7 a4 e8N f2 g6 a3 g7 c4 d7 h4 b6 h2 b7 a2 b5 c3 b6 f4 Bg2 f1R Bd2 f3 Bh3 f2 Bh6 Rh7 Nd6 Nf6 g8N Nc6 b8N Ra7 b7 Ne4 Bg2 h3 Bf3 Qf6 d8N Rc7 Nd7 Qg6 b8Q Ng3 Nb6 Bd7 Na8 Be8 Nf6 Nb4+ Kc1 c2 Na3 Kc3 Bh5 Kd4 Nh7 Kc3 Nf5 Bc5 Ne3 Kd4 Nb7 Kc3 Rb1 a1Q Nd6 Qa2 Ra1 Kd4 Nac4 Qa5 Na3 Kc3 Qc8 Kd4 Kb2 c1B+ Kb1 Bb2 Qd8 Re1 Qb8 f1B Qc1 Be2 Nd1 Rf1 Ra2 Rf4 Ndb5+ Kd5 Nc2 Ke5 Nf3+ Kd5 Rg1 h1Q Nfd4 h2 Re1 Qhe4 Nbc3+ Ke5 Ra1 h1B Na2 Bhf3 Qd8 Bg2 Nb5 Kf5 Qd4 Bh1 Bf3 Bg2 Qh8 Bh1 Bg2 Kg4 Bf3+ Kh3 Bg4+ Kg2 Bh5 Bg4 Re3 Kf1 Re2 Qg2 Re7 Q2e4 Nac3 Bgf3 Ra3 Be2 Na2 Qee6 Ra4 Bd5 Ra3 Qee4 Ra4 Qab6 Ra6 Qa5
3r2qr/1r2bn1k/3N2NB/RK6/BP4nN/1n3NQ1/1NR1RR1n/bn2q2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 Kc4 Kf7 g4 Kg6 b4 h5 e4 h3 g5 a4 e5 h2 e6 f3 b6 a3 e7 a2 e8R h4 b7 f4 d6 f2 d5 f3 d7 h3 d6 Nf6 Qd3+ Kg7 g6 Qb6 d8N Be7 d7 Ng4 Nc3 Qe6+ Kb5 c4 Nd1 c3 Nc6 c2 d8N Qg8 Nd4 Nc6 b8R Bb7 Rc8 Nce5 Nb2 Nf7 Rc3 Be4 Nb7 Rd8 Nd6 Bd5 Be2 f1N Bd1 f2 Ndf3 Nd2 Nh4 f1N Qg3 Nb1 Ngf3 Ba8 Bf4 c1N Ba4 Nb3 Rc2 Rh7 Rg1 h1Q Rgg2 Nfh2 Rgf2 Qe1 Bh6+ Kh8 Ng1 Bh1 Ngf3 Qf8 g7+ Kg8 Rfd2 Rh8 Rf2 Kh7 Ka6 Qg8 Kb5 Bf6 Re4 Be7 Ree2 N1d2 Rd1 Nb1 Rd5 a1B Kc4 Nf1 Ra5 h2 Kb5 Bg2 Qf4 h1R Qe5 Nfh2 Qg3 Qf8 g8N Rf1 Bg5 Bh1 Bh6 Bg5 Nd2 Nfe5 Ne7 Qg8 Rf8 Rf7 Neg6 Re7 Rf5 Nf7 Rff2 Ra7 Ndf3 Be7 Be3 Rad7 Bh6 Rb7+
NB1Q2Qq/1b4rN/3N4/1K1R1b1b/P1Rq1N2/2N1n1r1/3rbn1b/1nN1k2B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 g4 Kf4 a4 c5 f3 Kg3 d4 Kf2 f6 e5 d6 h5 g5 b5+ Kd3 b3 d7 b2 f7 c4+ Kc3 h3 d5 b4+ Kd2 h4 g6 h2 g7 h3 d6 b3 Kc3 e4 Kb4 e3 f4 e2 f5 e1Q+ Bd2 c3 f6 c2 Qg4 c1R Ra2 Qee8 Qe4 Rc3 Kb5 Ra7 Qa8 Ne7 Bf4 Nf5 Ne2 Na6 Nc1 Nb4 Bg2 Nd3 Rd1 h1B g8N h2 Nh6 Be7 f8N Qh5 Bc6 Bf3 f7 h1B Ng6 Bg5 Be5 Bf4 f8N Bh2 Nf7 Be2 Nf4 Bhf3 Bd5 Qf6 d8N Qg7 Rd2 Ke1 d7 Nf2+ Rd3 Rac7 Nde6 Bb7 Be4 Bg4 Bh1 Qhh6 Bd6 Bh5 Ra3 Qhf6 Nh7 Rd8 Qb8 Qh8 Ra2 R7c6 Nc7 Qfg7 Be5 Rg6 Na8 Qf6 Qc8 Rg7 Bb8 Qd6 Qc4 Qf6 Rd4 Rcg3 Nc3 b1B Rad2 Ne3 R2d3 Bc2 Qe6 Bb1 Rc4 Bc2 Qe8 Bb1 Rdd4 Bf5 Qg8 Qd6 Nd1 b2 Rd2 b1N Nc3 Re8 Rd3 Re4 d8Q Rd4 Rd2 Qf6 Nd6 Rd3 Rb2 Rd1 Rd2 Qe5+ Rd5 Qd4 Qge8 Rd3 Qg8 Rd2
3b2R1/NR2q1b1/1Bq4Q/2N1qBP1/2Bb3N/k1Bnrr2/b2K3N/nbN1n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kd6 g4 h5 d4 c5 b6 f5 b5 a5 b7 h3 b6 h2 Ne2 h4 Rg1 h1N Ra3 f3 Nbc3 a4 Na2 c4 Re3 f4 Qc2 h3 Nec3 a3 Qa4 h2 Rg3 f2+ Kd2 f3 Ne2 Na6 b8N Nc5 b7 Nh6 Ng1 Nf7 Nd7 Bg7 b8N Ne5 Bb2 Rh3 Bc3 Ned3 Nf8 Ne1 Nc1 a2 Na6 a1B Ng6 Bf5 Nh4 Qe7 Qd1 Rf8 e5+ Kd7 e6+ Kd6 Bd3 f1B g5 f2 Qh5 Rf7 Be2 Bb1 Qh6 Rf3 Re4 Re3 Ngf3 Bg2 Rf4 f1Q Rf8 Nf2 Rg8 h1Q Nh2 Nfd3 Rf3 Qf2 Rf7 Qg3 Bg4 Bf6 Bf5 Qe5 Rh7 Rhf3 Rhg7 Qf8 Rb7 Bd8 e7+ Qff6 e8B Nb3+ Kd1 Bb2 Bf7 Na1 Kd2 Qe7 Nc5 Bh3 Be4 Be6 Bf5 Qe5 Rb5 Kc7 d6+ Kc6 d7 Kd5 Rb7 Kc6 Ra7 Kb5 d5 Qg2+ Ne2 Qh1 d6 Bd5 Nc1 Be6 Na6 Ka4 Rb7 Ka3 Nc5 Bd5 Ba5 Bd4 Bc3 Bc7 d8N Be6 Nc6 Bd8 d7 Bd5 Ba5 c3+ Kd1 c2+ Kd2 Bda2 Na7 Rf1 Bc3 Qc6 Bc4 Rff3 N1b3 Bb6 d8B c1B+ Kd1 Bb2 Kd2 Ba5 Nc1 Bb6 Bc7 Ba5 Bd6 Bd8 Bc7 Qf4 Bb6 Bg7 Bca5 Bbd4 Bc3 Qfe5
1B4qb/R1R1rBBN/1rnn4/bQK2P2/N1B1b3/B2b2Bq/2Q1r1k1/2b3q1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 a5 g4 c5 d4 h5 f4 e3 b4 e4 f5 h3 b6 h2 b5 e2 b7 e1B b6 a4 g5 h4 g6 h3 g7 a3 Qe2 e3 Qg2 e2 Be3 a2 Bg5 Nc6 Bc1 Ra7 Nc3 Rh6 Na4 Nge7 g8B Ba5 Nf3 e1R Bf7 Bg7 Qc2 Qg8 Ba3 Re2 Ng5 Bh8 b8Q+ Rc7 Rg1 h1B b7 h2 Nh7 Be4 Rg7 h1Q Rc1 a1Q Kb5 Kd7 d6 c4 d5 c3 Kc4 Qh3 Kc5 Re1 Bc4 Re2 Qa8 Rg6 b8B Ba6 Qb7 Nc8 Qb5 Qb1 Qcb2 c2 Q2b3 Kd8 d7 Ke7 d8B+ Kd7 Bh4 Nd6 Bg3 Ke7 Rd1 c1B Qc2 Rb7 Rd3 Rb6 Rc3 Re6 Ng5 Kf6 Rh7 Nc8 d6 Re7 d7 Nd6 d8B Qa1 Be1 Ke5 Bg3+ Bf4 Rg7 Qah1 Nh7 Qg1+ Bf2 Bc1 Bdc7 Kf4 Bd4 Re3 Be5+ Kf3 Bg3 Nc8 Bce5 Nd6 Bg6 Re6 Ra7 Re8 Bgf7 Re7 Qd1+ Kg2 Bg7 Nd4 Qc2+ Re2 Rd3 Bab7 Re3 Bd3 Re6 Bbe4 Rg6 Ne8 Rc6 Nd6 Rcc7 Nc6+
q1b1K3/BNq1R3/k3N1P1/n2r4/1n2br2/1B1R1qbN/1qR1r1N1/N2RQ1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8R c2 d5 h3 d6 a3 g5 a2 g6 Qc7 Be3 c1Q Re7 Na6 d8N+ Kb8 b7 Qa5 d7 Bh6 Na3 Qb2 Rc1 a1Q Rc2 Qc7 Bc4 Nb4 Qe1 Ra5 Bb3 Bg7 Bc5 Be5 Nc4 Rh5 Bf2 Ra2 Ne3 Ka7 b6+ Ka6 b8R Rg5 b7 Qab1 Re8 Ne7 Ng2 Nec6 Ne6 Na5 d8N Q1a1 Ba7 Qac1 Kf2 f3 Re7 f4 Ra8 Bd6 Rb8 Qca1 Ra8 Rd5 b8N+ Kb5 Nbc6 Ka6 Nb7 Qd1 Kf1 f2 Ncd4 Qdb1 Ke2 f1Q+ Kd2 f3 Ke3 f2 Ke4 Be5 Kf5 Bg3+ Kf6 Q1a1 Nf3 Qg1 Kf7 f1R Ke8 Qd1 Nfg5 Rf4 Rb8 Qf3 Ra8 Qgf2 Rg1 h1B Rb8 h2 Nh3 Qd1 Rf1 Qg1 Rf3 Qe2 Rd3 Qg4 Ba4 Qf3 Nb3 Qa3 Na1 Qb2 Ne3 Bg2 Bb3 h1Q Rd1 Bf1 Ng2 Bd3 Nd4 Be4 Rd3 Bg4 Rd8 Bc8 Ne6 Qf6 Rc1 Re2 Rc2 Qb2 Rd1 Qgb6 Rdd7 Qhg1 Rd3 Qb8 Rd6 Qa8 Rd8 Qc7 Rd1 Rg5 R8d3 Rd5
n1Q2r1k/1N1Nr2b/1n1PnRB1/1nqqKN1N/3B3n/b1r5/RN6/1NQ1b3 w - - 0 1 illegal: No possible last move, all moves rejected
2b1KnBb/BN2R1P1/2nrQN1r/qn1N3q/1N1rB3/1k2N2n/3nb3/RB6 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 h5 e4 a5 g4 f5 c5 d5 b6 d3 g6 a4 g7 d4 c6 h4 c7 d2 b7 a3 g5 d3 g6 h3 Nf3 h2 Qe1 a2 Nc3 d1Q Nd4 f3 Bg2 d2 Nc2+ Kc4 b4 f2 b5 f1B b6 f4 Nd5 f3 Nce3+ Kb3 Bb2 f2 Bd4 Nf6 g8B Bg4 c8B Ka3 Bf5 Nfd7+ Ke6 Nc6 Kf7 Ra6 b8N Kb3 b7 Rh6 e5 Bg7 e6 Qa5 e7 Bfe2 e8N f1N Ba7 Nf8 Nd7 Bh8 b8N Bh3 Rg1 h1N g7 Nf2 Bb1 Rd6 N7f6 Bc8 Bge4 Nh3 Rg5 Rb6 Re5 Rb4 Nfd7 Rd4 Na6 Rh6 Nab4 Rd6 Bbd3 Rh6 Re7 Rd6 Rc1 a1R N7f6 Ra2 Bb1 Ra4 Bh1 Rh4 Bhe4 Rh6 Nbc2 Rd4 Ncb4 Qc2 Rd1 Qcc5 Rc1 Bc4 Qe2 d1N Qg4 Bd3 Qe6 Nc3 Re1 Nd2 Rd1 Rd7 Nd6 Nb5 Nb7 Rd6 Ke8 Bf1 Bbd3 Be2 Ra1 Qc1 Bb1 Qh1 Nfg4 Qf3 Ngf6 Qh5+
2BbN1N1/bN3PKq/1b2B1B1/N3nRr1/1q1Q4/1r1n2BR/4kN1b/r5qb w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 c4 Ke5 b4 Kf4 c5 d5 f3 e5 b6 a5 c6 h5 g6 e3+ Kd3 a4 g7 h4 g5 e4+ Kc2 d3+ Kc3 d4+ Kc4 h3 b7 h2 c7 d2 g6 a3 b5 d3 b6 e2 Bh3 Ke3 f4 e1B f5 a2 f6 Bf2 f7 Qe7 Kd5 Qb4 Ke5 Rh5+ Bf5 Ne7 Kf6 Ra3 g8B Nbc6 b8N Ne5 g7 Rb3 b7 Rg5 Nh3 N7c6 Nc3 Bc5 Na4 Ba7 Bgh7 Bh4 Rf1 h1Q g8N Bf2 Rb1 a1B Nd7 B1d4 b8N Bb7 c8B Bg1 Bg4 Bh2 Be6 Bdb6 Rf5 Ba8 Qg1+ Ke2 Nf2 d1Q Bg6 e3 Nac5 d2 Kg7 Nd3 Ndf6 Nce5 Nb7 Qe1 Nc6 d1R Bd2 Bd8 Rb2 Ra1 Ne8 Qb1 Nca5 Qc2 Qg2 Qg1 Qe4 Qcb1 Qd4 Bdb6 Nd8 Bh1 Be1+ Kf1 Re2 Rg4 Rf4 Nc5 Ndb7 Qd3 Rf6 Qf5 Ne4 Ncd3 Bf2 Qh5 Rf3 Qh7+ Kf6 Rg2 Rh3 Rg4 Ra2 e2 Bg3 Rg5 Rd2 Qh5 Kg7 Bd8 Qd7 e1B Ra2 Bc3 Rf2+ Ke1 Rf5+ Ke2 Qd6 Bcd4 Nf2 B4b6 Qd4 Qh7+
1KQb3N/2nb2n1/Br1r2R1/2b1q1R1/2N1PkNR/8/2R1bB2/b1r1NRbb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 b4 Kf6 h4 Kf5 d4 a5 h5 c5 b6 g5 b7 g3+ Kf3 a4 d6 c4 d7 a3 h6 c3 b5 a2 d5 g2 b6 c2 h7 Bc5 d6 Ra6 Be3 c1R Bf2 Ne7 Rh4 Qe8 d8R Bd7 e4+ Ke5 Na3 f5 Rb1 a1B Rc8 Rf8 h8N Rf6 Qc2 g4+ Ke2 f3+ Kd3 f4 Kc4 g3 Rc6 Bcd4 Kb5 Bc5 Rb2 Nf5 Nc4+ Ke6 Qc3 Ng7 Rc2 Qh5 Bd3 Qe5 Bf1 Rh6 Be2 Kf6 Bd3 Kg5 Bf1 Be8 d7 Rd6 d8R Bd7 Rg8 Qe6 Ne2 g1B Nd4 g2 Be2 Qe5 Bd3 Ra2 Be2 Na6 b8N Bh2 b7 g1B Rf8 Rb2+ Ka5 Nc7 Rb6 Nd5 Ka6 Nc7+ Ka7 Bg3 Nbc6 Rb5 Rh1 Bh4 b8R Kg4 Rbe8 Bd8 Kb8 Ra5 Rb5 Ra6 Re6 Kg5 Ref6 Kg4 Rh4+ Kg5 Be1 f2 Re6 f1B Bf2 f3 Reh6 Qf6 N6e5 Bg2 Ng4 Rac6 Rg6+ Kf4 Rf7 Bh1 Rf8 Ba3 Rbg5 Qf5 Rd2 Bb4 Nc2 Bc5 Ne1 Qf6 Rc2 Qf5 Bd4 f2 Qh3 f1B Bf2 Bad4 Nce3 Ba1 Ba6 Be2 Nc4 Rf6 Qb3 Qe5 Qb7 Rd6 Qc8 Rf5 Rff6 Rc6 Rd6 Rf6 Rd1 Rcd6 Nf3 Rc6 Rf1 Rfd6 Ne1 Rb6+
6Q1/3QBNBb/3r3R/k5qK/7n/B1n1B1BN/B1Pb1qrr/qb2n1bR w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kf3 a5 b4 e5 g4 d5 f6 Kd7 g5 Kc7 f7 Kb6 g6 d3 g7 a4 Bg2 d2 Bf1 a3 Nc3 e4+ Kf4 a2 f3 d4 Nge2 e3 Rh3 d3 Rh2 h3 Rb1 a1Q Ng3 h4 Nh1 e2 Ba3 e1B Rc1 Be6 Nf2 Bc5 f8B Ba2 Kg4 Ne7 g8Q Bb1 f4 Na6 f5 Ng6 f6 Qe7 Rh1 h2 f7 h3 Nce4 Nh4 Bg7 Bd4 f8B Nc5 Nd6 Rc8 Qe2 d1N Qee6 d2 Bc4 Nd3 Ba2 Nc3 Qd7 d1R Nf7 Qf6 Be7 Bd2 Be6 Rd8 Ba2 Re1 Rd1 Re2 Rc1 Rh6 Rcg1 Rg6+ Kh5 Ne1 Rg4 Qf4 Rg5 Rd6 Rg6 Qe3 Rh6 Rg6 Rg1 h1Q Rf1 h2 Nh3 Qf2 Rg1 Qb7 Rh1 Ka7 b6+ Ka6 b5+ Ka5 Qd5 Qc8 b7 Qc5 b8B Rg2 b6 Rd6 b7 Qb5 Ba7 B4e3 Rf1 h1B b8B Rh2 Rg1 Be4 Rh1 Bh7 Qf5 Qg3 Bad4 Bg1 Be3 Reg2 Qd5 Qf2 Qf5 Rdg6 Bg3 Rd6 Qd5 Bf5 Qb7 Qe5 Qd7 Bh7+ B7g5 Qef4 Be7 Qg5+
1b1R4/3RRN2/1q1B1n2/2qq4/R2rnNk1/K5Pr/N1Bb1nb1/rrRN3Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 c5 Kc2 a5 Kb3 h5 e4 f5 d6 Ke6 d7 a4+ Ka2 h3 b4 f3 g3 a3 b6 f2 e5 f4 b5 Kf5 b7 c4 d5 h4 d6 h2 e6 f3 b6 c3 e7 c2 e8N h3 Kb3 a2 Kb4 Nf6 Bf4 c1B Bd3+ Kg4 Bc2 f1Q Nc3 Ne4 Nge2 f2 Rg1 Qg5 d8R h1N Rd7 h2 Re7 Be6 d7 Rh3 d8R Bd2 Bd6 Nd7 b8N Bd5 b7 Ndf6 Nc6 Ra5 Rc1 a1R b8R Bh6 Rg2 Qg1 Rdd7 f1R Rbd8 Nhf2 Qe1 h1Q Nf4 Rc5 Rh2 Rb1+ Ka3 Rc4 Nd1 Rd4 Nb4 Bb7 Na2 Qc5+ Nb4 Qb6 Na2 Ra1 Bb4 Qc5 Nd6 Bf8 Nf7 Ba8 Re6 Bd6 Ree7 Bb8 Rg2 Nd6 Rh2 Qhd5 Qe4 Qb6 Qh1 Nde4 Bd6 Nd3 Re2 Ndf2 Rb1 Qbc5+ Rb4 Qb6 Ra4 Bc6 Re3 Re1 Rc3 Rf1 Nb2 Rfb1 Nd1 Qe1 Bd3 Bb5 Nb2 Qc1 Rcc8 Qcc4 Nd1 Ba6 Rc5 Qcb5 Rc1 Qb5c5+ Rb4 Bb5 Bc2 Bc4 Nh5 Bf1 Nf4 Qcc4 Ra4 Bg2 Ne2 Qcc7 Nf4 Qcc5+
1Nr3B1/5RR1/rb4b1/1R2Q1n1/1NknKNRn/P1b2n2/3qN2q/1rqRB3 w - - 0 1 illegal: No possible last move
1rR2R2/B2K1B2/NRr3n1/1RN1QQ2/n1R1bP1k/nn1b4/2q2q1q/2Rrb3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Ke5 c5 b4 h5 d4+ e3 g4 a5 b6 h3 f4+ Kh4 d6 a4 g5 c4 d7 h2 Ke6 a3 d5 e2 d6 e1N b5 c3 g6 c2 g7 a2 b7 Qb6 Nd2 Na6 b8Q Qf2 Rb1 a1N b6 Nb3 b7 Rh7 Ba3 c1Q Bc4 Nc2 Bc5 Na3 Ne2 Qc2 Nd4 Rh8 Re1 h1B Nb5 Be4 Nc7 Rh7 Rg1 Rh6+ Rg6 Qh2 Rc1 Bd3 Ba7 Nac5+ Kf7 e5 Ke8 e4 d8R e3 d7 e2 Rb6 e1R+ Ne4 Ne7 g8R Na4 Bf7 Qhf2 Nc5 Rc6 N7a6 Ng6+ Qe5 Rb8 Rb5 Be4 Qdd5 Rd1 Qd3 Bd6 Rf8 Bc7 Qdd5 Ba5 Qf5 Be1 Qde5 Kg3 Rb6 h4 Rb5 h3 Rb6 Ra8 b8R h2 Rb5 h1Q R8b6 Bb7 Rc8 Bd3 d8R Qhh2 Rd4 Kh4 Rc4 Rb8 Kd7 Rc7+ Kd8 Bbe4 Ke8 Rc6 Kd8 Qc3 Kd7 Qcc2
q5bB/1r1P2bR/3NQRnb/3RR1r1/2qBrn2/R6K/nBkNq3/5Br1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kc5 d4+ Kb4 e4 c5 g5 f5 e5 h5 b3 a5 b6 f3+ Kh2 f4 d6 a4 g6 f2 g7 a3 d7 c4 b7 a2 e6 f3 e7 h3 e8R c3 d5 h4 d6 c2 Bd3 f1Q Bb5 f2 Ba4 Ne7 g8R Rh7 Qg4+ Qc4 Na3 Kc3 b4 f1Q b5 Nbc6 b8B Ne5 b6 Bh6 b7 N7g6 Ba7 Nd3 b8B Ndf4 Nf3 Qfe2+ Bf2 Ra6 Nd2 Ra5 Qe6 Rg5 Rgf8 Qa5 d8R Rb7 Rd7 Qa8 Rf6 Kd3 Bb2 c1N Rh7 Bd7 Ree7 Be8 d7 Bf7 Bc6 Bg8 Nb5 Kc2 Bg2 Rf5 Bf1 Rg5 Rb1 a1B B8e5 Na2 Re1 Qb4 Nd6 Qbc4 Ba3 Bc3 Bb2 Bd4 Rg1 Bc3 Rg3 Bd4 Kh1 h2 Ref7 Bc3 Rf5 Bd4 Bh8 Bdg7 Rd1 Nd3 Kg2 h1R Re5 Rg1+ Kh2 h3 Rf6 Ndf4 Ra3 R1g4 N2e4 Rg1 Rdd5 R1g4 Nd2 Rh4 Kh1 h2 Bb6 Nh5 Bg1 Re4 Bgd4 Nhf4 Rh3 Qg4 Rg3 Nh3 Kg2 h1R Bbc3 Qh5 Bb2 Rg1+ Kh2 Qd1 Re3 Nhf4 Ra3 Nh5 Kh3 Qe1 Be3 Qee2 Bed4 Nhf4+
3rB3/2rbrNr1/rrqK2RP/3QNq2/1N2Rr2/1nB2n1B/1B4Nb/5kB1 w - - 0 1 illegal: No possible last move, all moves rejected
R1N3b1/1b2Q1rB/1P1KB1bn/2N2b2/q6q/5N1n/2bBkNB1/2BRbrb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 c5 g4 a5 b6 h5 b5 a4 g5 h3 g6 h2 g7 a3 b7 f3 d6 a2 d7 h4 b6 f4 d5 h3 d6 f2 Nf3 Nh6 Ne1 f3 Nd3 Rh7 e4 Nc6+ Ke6 Qh4 b8B Nd8+ Ke5 Ndf7+ Ke6 Ng5+ Ke5 Ra3 d8N Bf5 Be2 f1B d7 f2 Rg1 h1B Bf3 h2 Nb7 Nh3 g8B+ Rf7 d8N Ra7 Qd2 Bhg2 Qd1 h1B Qe1 Bg7+ Kd6 Bc3 Qe3 Be1 e5 Be2 e6 f1B e7 Bd1 e8B Bc2 Bfc6 Bd5 Nf2 B1d3 Qe7 Rg7 Bh7 Bg8 Bcd7 Kd4 Nd2 c4 Bf7 c3 Bde6 Ke3 Nf3+ Ke2 Nc6 Bg6 Be8 Bdf5 Nc5 Ra4 Rf1 Rf4 Na7 Bg2 Bd2 Bh1 Rd1 a1Q Nc8 Qa4 Bc6 Bg2 Ne5 Bf3 Ba8 Bb7 Nf3 Bce4 Ra1 c2 Ra3 c1B Rh1 Bb2 Bc1 Bb4 Rd1 Bc2 Bd2 Bd4 Raa1 Ba6 Be4 Bb7 Bc7 Qb5 Ra8 Qa4 Bc1 Rg4 Ne1 Bb2 Nfd3 Qa3 Kd7 Bf6 B7f4 Qa4+ Kd6 Rg1 Bg2 Rf1 Nf3 Be1 Bg5 Bd4 Bgd2 Bg1 Nf2 Qa5 Bb2 Qa2 Bbc1 Qaa4
nQBR2Qr/rb2RK2/k2nNQ2/3rP1Q1/3n1rnQ/q7/3B1NrQ/2n3b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 Kc7 e4 Kb7 d4 a5 g4 h3 g5 h2 b6 a4 d6 h4 d7 c4 Ke6 f3 d5 c3 g6 c2 g7 f4 d6 a3 b5 h3 e5 a2 Qd2 f2 Bc4 f1N Qc3 f3 Qd4 f2 Bd2 c1N Ne2 Ra7 Nf4 Nh6 g8Q Nf5 Kf7 Na6 Nc3 Nc7 Be6 N1e3 Rd1 h1R Ne4 f1R Nf2 h2 Qb2 Rhg1 Qg5 h1R Qf6 Kb8 b7 Na8 Qc2 Qa5 d8Q R1h3 d7 Ng4 Qde7 Rg2 d8Q R3h6 Qh4 Qc3 Qeg5 Qa3 Qdf6 Bc5 Bd7 Kc7 Ne6+ Kb6 b8Q+ Bb7 Bc8 Be3 Rb1 a1N Rb4 Ka5 b6 Nab3 Rc4+ Ka6 Rc7 Nbd4 Re7 Ng3 Qh7 Ne4 Qh2 Rh3 Qhh4 Rhg3 Qd6 Rf3 Qd8 Rf4 Qdg8 Rfg1 Bb4 Re1 Rd3 Rd1 Bd2 Nc6 Rd8 Bd4 Nh1 Bg1 Nf2 Nd4 Bd7 Bc6 b7 Bd5 b8Q Bb7 Be1 Rd2 Bc8 Rd3 Bd2 Nd6+ Kf8 N4b5 Kg7 Rd5 Kf8 Nd4 Kg7 N6f5+ Kf7 Nd6+
n2K1B2/Bk2NBN1/1n2Q2R/1rBbRBn1/4nbQ1/1B3q1n/1q4P1/rn3r2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 Kf3 a5 Ke4 d5+ Ke5 Kd7 c4 Kc7 b4 f5 e4 h4 b6+ Kb7 g6 a4 b5 a3 g7 d3 c5 d4 Bb2 a2 Qa4 d2 Nc3 d1N Nd5 f3 Qb4 f2 Qb3 f4 Rb1 a1Q Ba3 f3 Nh3 Nh6 g8B Na6 Nhf4 h3 Ne7 h2 Kf6 d3+ e5 d2 Bd3 f1N Ne6 f2 Bf5 Nfe3 Ng7 f1R Qe6 Nc3 Re1 d1N Bf7 Nb1 c6+ Kb8 c7+ Kb7 Bb4 Qd5 Bc5 Qf3 Re2 Bd7 Re1 Qb2 c8B+ Kb8 b7 Bc6 Qc4 Nf2 Bce6 Rg8 Qg4 Nh3 Bb3 Nc4 Ke6 Bd5+ Kd7 Nc7 e6 Rh8 Kd8 Nb6 Re5 Ka7+ b8B+ Kb7 Bd1 Rg8 Bb3 Ra1 Ba7 Nca8 Be4 Na4 b6 Rh8 Bf5 Rg8 Nh5 Rg5 Ng7 Rh5 Ng8 Bd6 e7 Rg5 e8Q Rh5 Ne7 Rg5 Rg1 h1N Qg8 N1f2 Rh1 Ne4 Rh2 Ka6 b7 N4b6 b8B Kb7 Bc7 Na4 Ba5 N4b6 Bab4 Rh5 Re6 Bf4 Re5 Rg5 Qe8 Ng8 Rh1 Ngf6 Rh2 Nh7 Qc6+ Ka6 Qe6 Kb7 Ba3 Ng1 Rh6 Nh3 Ng6 Rh5 Bf8 Rg5 Ne7 Rh5 Bb4 N7g5 Bc5 Nc4 Ba3 Ncb6 B5g6 Bc6 Rb5 Nh7 Bb4 Rc5 Bf5 N7g5 Ba3 Rc2 Rd5 Rc5 Re5 Rb5 Bc5 Bd5
nKn3bn/1RRB3q/n6B/k3BQq1/q2B2Pb/nRN1nBR1/2r4N/3r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 h5 d4 a5 g4 c5 b4 Kc7 d6+ Kb6 e5 c4 d5 a4 d7 a3 e6 a2 e7 c3 e8B c2 d6 h3 Bb2 c1N Be2 h4 Qd2 h2 Bg7 h3 Qd1 Be7 Bf8 Nd3 Qe1 Ne5+ Kf2 f3 Kg3 f2 Kf4 f1N Nf3 Nd2 Qf1 Nf7 Rg1 h1Q Rg3 h2 Bg7 Nc4 Qf2+ Kb7 b6 Ka6 b7 Qd1 Bd4 h1Q Qf1 Qa5 d8B Be6 d7 Rh2 Bc7 Nh8 d8B Rf2 Bd7 Qh7 Bd6 Bh4 Bg5 Ne7 Bh6 Bg8 Bc7 Rg2 Nh2 Nc8 Bd6 Qc5 b5+ Kb6 Qf2 Ra5 Qf3 Na6 Qf2 Ra3 b8R+ Ka5 b6 Qa4 b7 N4b6 Bd1 Qc1+ Ke5 f4 Qc2 f3 Qf5 f2 Bf3 f1N Bc7 Ne7 Rc8 Rb3 b8R Qg5 Rb7 Rd3 Nc3 Rd1 Rb1 a1N Rb3 Ne3 Bb8 Nac2 Kd6+ Nc5 Kc7 Na3 Ba7 Ra2 Be5 Na8+ Kb8 Rc2 Rc6 Nc8 Rcc7 Nd3 Bc5 Nb4 Bcd4 Na6+
N1Bq1b2/b1N3bR/N3K1NB/Bq3r1P/3bRNr1/BQr3n1/4bb1k/3n4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 h4 Ke5 b4 f5 b6 a5 d3 g5 b5 c5 b7 a4 d6 c4 b6 c3 h5 g3+ Kf3 g4+ Kg2 a3 d7 c2 Nc3 a2 Nd5 Nh6 Ne2 Nc6 b8N Nd4 b7 Ra4 Ba3 c1B Nb6 Nc2 Na8 Be3 Rh4 Ba7 Na6 Bf2 Rc1 a1B b8N Rg8 Rb1 Rc4 Rb7 Rc3 Ra7 Bb7 Qb1 Bc6 Qb3 Bb5 Rb7 Qb6 d8B f3+ Kh1 g2+ Kh2 f4 Rh7 g3+ Kh3 g1B Bg5 Nf5 Kg4 Qd8 Bh3 Bg7 Bh6 g2 Qc4 Ng3 Qb3 Qd6 Kg5 Ne3 Bc8 Qd8+ Kg6 Bb2 Kf7 Nd1 Rg4 Ba7 Rh4 Bgc5 d4+ Kd6 d5 Ke5 d6 g1B d7 f2 Rg4 f3 Nf4 f1R Rh4 f2 Nc6+ Kd6 Ne5 Be2 Neg6 Bd4 Nh8 Ke5 Rg4 Bf8 Rh4 Qg5 d8B Ba1 Ba5 Qd8 Nb4 Rg4 Na6 Re1 Qb4 f1Q Qb3 Bdf2 Nhg6+ Kd4 e5 Ke3 e6 Kf3 Nd3 Kg2 e7 Bfd4+ Ke6 Bgf2 Ndf4+ Kg1 Nh3+ Kh2 e8N Qg2 Bd7 Rf1 Bc8 Qb7 Nec7 Qb5 Nb4 Rg5 Re4 Rg4 Nba6 Be1 Ne7 Rf5 Nf4 Bef2 Neg6 Bdg7 Bd6 Rc2 Be7 B1d4 Ba3 Rc3
1r1b2nr/3B1n2/1N2N1K1/2qP3b/1krn4/2R2r1b/1B3rB1/QNRBNNn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 c5 d6 f5+ Ke5 h5 e4 a5 g5 h3 d5 a4 g6 h2 b6 h4 b3 h3 b7 a3 g7 c4 d7 a2 Bg2 f3 Ne2 f2 Ng3 f1R Bb2 f4 Kf5 c3 e5 c2 e6 c1R e7 f3 e8B f2 Kg6 Qa5 d8N Nc6 b8N Bg4 Ne6 Rc4 Nd7 Qc5 Ne5 Nd8 Nf3 Nf7 Ne1 Be7 Ba4 Bd8 Rg1 h1R Qc1 Nf6 g8B Rb8 Bh7 Rh2 Bd7 Ng8 Rh1 Rg1 Qd1 f1N Qd4 Nd2 Nf1 Nf3 Qd1 Ka5 b4+ Kb6 b5 Ka5 b6 Kb4 Ng3 Rf1 b7 Ng1 Qc1 Rf3 Nf1 Rb3 Kg7 Ra3 Bc2 Rf3 Bd1 Qf2 Na3 Qc5 Rb1 a1N Kg6 Nb3 Ra1 Qd4 Nb1 Qc5 Ra3 Nd4 Rc3 Rf5 Be4 Rhf2 Bef3 h2 Bg2 Ra8 b8N R5f3 Bc8 Bh3 Nd7 Rb8 Nb6 Nge2 Rg1 h1B Bd7 Bg4 Na3 Bh3 Qa1 Bg4 Bh3 Bg2 Rh1 Ng1 Nb1 Qb5 Bb3 Qc6 Bd1 Qc5 Nfd2 Nge2 Bb3 Nc6 Nc2+ Kb5 Rc1 Ng1 Ne1 Kb4 Bd1 Bf1 Bg2 Nd4 Bh1 Bg2 Nf1 B2h3 Bg2 Bh5+
QBB3k1/1N2r1n1/1Q3n1P/BRBn3R/2Brn1b1/2n5/K1B3rb/2brN2q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 b4 Kf7 e4 g5 h4 d5 c4 a5 Kc2 d3+ Kb2 d2 c5 g4 b6 g3 e5 f3 c6 f4 h6 a4 h5 g2 b5 d4 b7 d3 b6 f2 h7 a3+ Ka2 f3 h6 Ne7 c7 Qd5+ Qb3 d1R Rh4 d2 Rh5 Nf5 Ba6 f1N Bb5 f2 Bc4 Rg8 h8B N1e3 Nc3 f1N Ne4 Ra4 Nc5 N1g3 Nf3 g1B Ne1 Ne4 Rb1 Rg2 e6+ Kg8 e7 Bh2 e8B Ng7 Bg6 Nd7 b8Q Ndf6 b7 Bg4 c8B Bfd6 Qb2 Bdf4 Qa8 Ra7 b8B Re7 Qb6 Bg5 Ka1 a2 Rb5 Bgf4 Kb2 a1R Nb7 Ra4 Kb1 Rb4+ Ka2 Bg5 Ba3 Bgf4 Bb3 Rd4 Bc5 Bg5 Ka3 Bgf4 Bc2 Qc6 Ka2 Ned5 Bb3 Rb1 Bc4 d1N+ Ka3 Ndc3 Bgf5 Nd2 Bc2 Rd1 Kb2 Nf5 Bg7 Nde4 Bf8 Bg5 Bb4 Ng7 Ba5 Qe6 Kb3 Qf5 Kb2 Qf1 Kb3 Qh1 Kb2 Rc7 Bc5 Re7 Ka3 Bc1+ Kb3 Ne2 Ka2 N2c3+
n1r1bq2/P2B3R/QKR1N1RN/r2q4/1N1R2Rb/2b1b2b/1B5b/Nk2q1n1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 Ke5 Kb5 Ke4 h4 e5 d4 g5 a4 g3 f4 g2 h5 b3 f6 g4 a5 g3 h6 b2 d6 c4 d7 c3 f5 c2 h7 Nc6 a6 Bg7 f7 Qf8 d8N Nf6 d5 Nd4+ Kb6 Nf3 d6 Ne8 d7 Nc7 Na3 b1B Bb2 c1B f6 Bg5 Nc6 Bh4 d8N Bh3 Ne2 g1B+ Ned4 g2 Bb5 Be3 Nc2 g1B Ne6 Bh2 N6b4 Ng1 Bd7 Rg8 h8R Rc8 Ka5 b5 Rh6 Rh8 Rg6 Rh5 a7 Rf5 Nd3 b4 Ra4 b3 Ndb4 Rh5 Nf5 Bh8 Bc1 b2 Na1 Bd3 Qc2 b1Q Qa2 Qb3 Nh6 Bb5 Bb2 Qd5 Qc4+ Bd4 Qc6 Be3 Qa6 Rg5 Na2+ Kd3 Rg4 e4 Nb4+ Kd2 Nd8 Bef2 Ne6 e3 Kb6 e2+ Rd4+ Ke3 Rg4 e1Q Rd4 Rh5 Rdg4 Ke2+ Rd4 Be3 Rg4 Qg8 f8R Bg7 Re8 Qf8 Re7 Bh8 Reg7 Re5 f7 Rg5 Nd3 Kd1 Rg6 Kd2 Nb3+ Kc2 Na1+ Kb1 Nb4 Qe7 f8R Qf6 Re8 Qf8 Nc5 B8e5 Ree6 Bf6 Rc6 Ba4 Rc4 Bc3 Rcd4 Bhf2 Ng8 Bg2 Nbd3 Qdd6 Be6 Bhg3 Rh7 Bh2 Nb4 Bh4 Nh6 Qe5 Rcd6 Be8 Rc6 Bh3 Bd7 Qed6 Ne4 Ra5 Ng5 Qd5 Ne6 Na8+
2qbBn2/nbB4N/br3B1q/RRb1r3/3NP2r/3R3Q/RR1B1K2/rr1k4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 g4 f5 b4 c5 b6 a5 b5 h5 g5 f3 g6 f4 g7 c4 b7 a4 b6 a3 Bd3 a2 Rh3 c3 Qe2 c2 Rh2 h3 Bb2 c1B Qd1 h4 Qe2 f2+ Kf1 Nd7 b8R Ra6 b7 Ne7 g8R Nc6 Nf3 Rb6 Bb5 Rh5 Rgg2 Na7 Nbd2 Re5 Qe3 Be7 Rg5 Nf8 Bc3 Ba3 Nb3 Bc5 Be8 Qc7 Rhg2 h2 Bd2 h1R+ Ke2 f1B+ Kf2 h3 Rf5 h2 Ng5 f3 Nh7 Be2 Rb1 a1R Rb2 Rhg1 Ra8 h1R b8B Rgb1 Rh2 Nc6 Ra5 Bea6 Qh6+ Bf6 Qh3 Bd8 Rg5 Na7 Rf5 Ke7 d6+ Ke6 d7 Bcb7 Rb5 Qc8 Bc7 Bde7 d8B Bg5 Kg3 f2 Bf6 f1Q Re2 Qd1 Kf2 Qc1 Be3 Qd2 Ra5 Ng6 Bfd8 Rd5 Rba2 Bh4+ Qg3 Bf8 Be7 Qc1 Reb2 Bf6 Bed8 Rh4 Qh3 Bd6 Be7 Nf8 Bg5 Ba3 Bb4 Be7 Bf6 Qh6 Bd2 Rdb5 Bd8 Kd6 d5 Rc5 Nd4 Rcb5 Nf3 Kc5 d6+ Kc4 d7 Kd3 Bc7 Bab4 d8R+ Rd5 Kg3 Ke2 Kg2 Rdb5 Rd3 Bd8 Nd4+ Kd1 Kf2 Ba3 Rf4 Rbh5 Rff5 Bae7 Rfc5 Re5 Rcb5 Bc5
8/3r3q/B1bqq1RR/1N4Pb/bR2brkn/2B1b1N1/qB2nR2/QRB3K1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 Ke6 b6 h3 e5 h2 d7 c4 g5 a4 b5 c3 b7 h4 b6 f3 Bd3 h3 Bd2 c2 Bf4 c1Q Be4 a3 Nd2 a2 Rb1 a1Q Bg3 f4 Nf1 Rh4 Bc2 Nh6 Bb3+ Kf5 d5 Qc6 d6 Ra7 e6 Kg4 e7 Nf5 e8R Qa2+ Ne2 Qe4 Qc1 Qe6 Bc4 Nc6 b8R Bb7 Ba6 Ncd4 Rc8 Qdf6 d8B Bc6 d7 Bc5 b7 Qf8 b8R Qfd6 Bf6 Be4 d8B Rd7 Rg1 h1Q Ba5 h2 Rg2 Bc6 Rh8 Bb6 Bc3 Ba7 Ke1 f2+ Kd1 f3 Rcg8 Be4 Bf4+ Kh3 Bb2 Nc2+ Bd2 Be3 Bfc3 Bc6 Ra1 Be4 Ba5 Ncd4 Rg6 Bc6 Nc3 Be4 Rhe8 Rf4 Rb3 Bc6 Nb5 Be4 Bac3 Bc6 Rg1 Kh4 Ng3 f1B Ke1 Be2 Re7 Bd1 Kf1 f2 Rb4 Ba4 Qb1 Kg4 Rh7 Be4 Rh3 Bc6 Bdc1 Qhe4 Rg8 h1B Rh6 Nh4 Rg2 Qh7 Rh2 Bhe4 Rg2 Bg6 Rh2 Bh5 Rgg6 Nhf3 Kg2 f1B+ Kh1 Bh3 Rf2 Nh4+ Kh2 Bhg2 Kg1 Qa3 Qa2 Bge4 Rb1 Qab3 Qa1 Qbd5 Rf6 Qa2 Rfg6 Ne2+
2n1q2b/kN4n1/n1B3nB/3BQR1r/3N4/r2r1N2/B1NR2Pq/bB1K2bb w - - 0 1 illegal: No proof kernel
1nR1BKb1/5N1q/3b1N2/R1Nn3B/b7/3bN2N/nrPB1rnB/k3rqQ1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 d5 b4 h5 g4 a5 f6 d3 f7 d4 f3 d2 g5 h3 b6 a4 g6 h4 b5 a3 b7 a2 b6 h2 g7 h3 Ne2 d3 Qe1 d1B Nf4+ Be2 Na3 Bd7 Bd2 Nf6 g8B Ba4 Bh7 Nd5 Bg6 Qd7 Bh5 Rg8 Qf2 Rg6 Qg1 Rf6 Bg2 Qf5 Bf1 Qh7 Nc4+ Kf5 Ne3+ Ke5 Ne6 Rf5 f4+ Ke4 Nd8 e5+ Kc4 Bd6 f8N Ra5 Nfe6 Rb5 Nf7 Rf6 f5 Rb2 Rb1 a1N Nf4 Nb3 Ra1 Nc1 Ra3 Na2 Rc3 Rg6 f6 Rg2 Ra3 Rf2 Rc3 Bb3+ Kb5 Kd4 Rc8 e4 Bg2 Nd7 Kc6 Bf1 b8N Ba4+ Kb7 Be2 Na6 Nb8 Nc5 Bf1 Bgf3 Be2 Bfg4 Bf1 Bd7 Be2 Ba5 d2 Be8 d1N Bd2 Bd3 Qg7 N1c3 Ra1 h1B Qg1 h2 Nh3 Bf3 Qd1 h1Q Qg1 Nab4 Ra3 Nf4 Ra2 Ng2 Ra3 Bf8 Kc7 Ncd5+ Kd8 Bd6 b7 Bg4 Ra2 Bgd7 Ra1 Bb3 Ra5 Na2 Bc1 Bda4 Bd2 Nd7 b8B Bbc4 Ng4 e3 Bc7 e2 Ne3 e1R Bb8 Bf8 Bh2 Nb8 Nh8 Ndc3 f7 Bd6 f8N Bg8 Nfd7 Nd5 Nf6 Ngf4 Qg2 Qf1 Qg1 Ng2 Nf7 Rbb1 Bc1 Kc3 Bd2+ Kb2 Nfd7 Ka1 Nf6 Nc6+ Kd7 Rb2 Ke6 Ndf4+ Kd7 Nb8+ Kd8 Bc7+ Ke7 Nd5+ Kf8 Bd6+
1r3q1B/2n1n1Qb/1R1B1rnB/1K1B2B1/1n4qQ/k7/P1RqN3/Bqb2rN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 c5 g4 e5 d4 b5+ Kb3 h5 f4 h3 g5 e4 g6 h2 g7 h4 f6 e3 f7 e2 f5 e1Q f6 c4+ Kb2 h3 Be2 c3+ Kb3 c2 Bd2 c1N+ Kb2 b3 Kc3 b2 Kb4 Rh6 Bf1 Ne2 Bc3 Nf4 Qa4 Ng6 Bg2 N8e7 g8Q Bf5 Qg7 Qd2 Be4 Qe8 Bg2 Na6+ Ka5 Kd7 d6 Rb8 d5 Nc7 Qh4 b4 Bd4 b3+ Nc3 Qc8 Rc1 b1Q Rc2 b2 Ka4 Qbe1 Nce2 b1Q Ba1 Qg3 Be4 Qe8 Bg2 Qg4+ Be4 Kc8+ d7+ Kb7 d6+ Kb6 Rc5 Ned5 Rc2 Nb4 Bd5 Qe7 d8B Qe8+ Ka3 Ka5 d7 Bd6 f8B Bf4 Bd6 Qf8 f7 Bg5 Nf3 Bd3 Rd1 h1R Nfg1 h2 Bdf6 Kb5 d8B Be3 Nf3 Rf1 Nfg1 h1N Bfc3 Bf5 Bg5 Ng3 Rdc1 Ka5 Rb2 Bd3 Rcc2 Nf5 Kb3 Be4 Kc4 Ka4 Bcf6 Ka3 Bd4 Qh8 f8B Nfe7 Bdf6 Nf4 Bfe5 Bh7 Bd4 Rf6 Kc5 Nbc6 Rb6 Nfg6 Kc4+ Nb4 Kc5 Na8 Kb5 Qg8 Qf7 Bf4 Bfh6 Qf8 B4e5 Qdd1 Bed4 Bc1 Qg7 Qd2 Qf7 R6f5 Bh8 Rf6 Qg7 Nc7+
8/k2q2RN/B1BRnR2/b1b2r2/B1rrq3/3PBq1n/1NR1q1bb/K1B1Q3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 g4 c5 e4 Kc7 b6+ Kb7 g5 a5 g6 h5 b5 f5 e5 a4 d3 c4 Kd2 a3 Kc2 h3 g7 a2 Kb2 f3 e6 c3+ Kc2 h2 d6 h4 d7 f2 e7 h3 e8B f4 Bh5 f3 Bg2 f1Q Bg4 Ne7 g8B Rh4 Bc4 Nbc6 Bb3 f2 Qe1 Qe2+ Nd2 f1R Nf3 Ng6 Rg1 h1Q Ba4 h2 Ng5 Nf4 Nh7 Nh3 Bd5 Qde8 d8R Bc5 Rd6 Qhf3 Rf6 Kb8 b7 Ka7 b8R h1Q Rb6 Bb7 Bc8 Rc4 Rg7 Nd8 Rbd6 Qd7 Bc6 Ne6 Kb3 c2 Kb2 Rd4 Nc4 Qfe4 Rb1 Rf5 Ka1 Qhf3 Rb2 Rb8 Be3 c1B Rc2 Bd2 Nb2 Ba5 Bc1 Ba8 Ba6 Rc8 b6+ Kb8 b7 Ka7 Nd1 Rc7 Kb2 a1B+ Ka2 B1c3 Nb2 Bd2 Ka1 Bf4 Be3 Bh2 b8B+ Kb6 Rd5 Rc8 Bbf4 Ka7 Rd6 Rb8 Nf8 Rbb4 Nh7 Rbc4 Bc1 Bb7 Bfe3 Qef4 Nd1 Qff1 Bcb5 Bg2 Bc6 Q1f3 Nb2 Q4e4
1kq2BN1/q1qn3N/R2rn3/2Rb3N/NbQ2rB1/1PNR3q/7b/2Rb1nK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 a5 e4 c5 g4 Kc7 g5 h5 b3 f5 g6 h3 e5 h4 g7 a4 e6 f3 e7 f4 e8R h2 Bd2 a3 Qc2 a2 Qf5 h3 Re3 c4 Bc3 Nf6 g8N Nc6 d6+ Kb8 b6 Ra6 d7 Qc7 d8R Rh4 b7 Nd7 d5 Nd4 d6 Ne6 Bg7 c3 Qg4 c2 Rc3 c1B Ne2 Rc6 Rg1 h1B Rc5 h2 Bh3 Ra6 Kf1 f2 Ng3 Bd5 Nh5 h1Q Nc3 Ba3 Qe2 Bb4 Bg4 Qe4 Qc4 Qc2 Rc1 a1Q Rh1 Be7 Bf8 Rb6 Rh3 Qa7 Rd3 Bf6 Re8 Be5 Re7 Qca2 Rf7 Q2a6 Rf6 Rc6 Ke2 f1N Kf2 f3 Kg1 Bg3 Rh6 Ne5 d7 Rd6 d8N Nd7 Nf7 Qac6 Ng5 Qca6 Bh3 Rf4 Nh7 Qac6 Bg4 Qca6 Qe4 f2+ Kh1 Nd8 Ra1 Rg6 N5f6 Nd2 Be6 Ne5 Nh5 Bd7 Rg1 f1Q Ra5 Rgf6 Bh3 Bg4 Rg6 Be2 Bg4 Nd7 Rb5 Rc6 Rd6 Ne6 Ra5 Qff2 Rc1 Bd1 Rb5 Rb6 Ra5 Qe2 Kg1 Nf1 Qc4 Qe4 Be2 Qf5 Rc6 Qh3 Bg4 Qa8 Rd6 Ka7 b8N Rc6 Rb5 Qa2 Na6 Qac8 Nc5 Qaa6 Ra5 Kb8 N5a4 Qaa7+ Rc5 Ra6 Rc6 Rb6 Ra5 Ra6+ Rcc5 Rd6 Ra6 Bh2#
1r2R3/1q1Q3n/1b1nQr2/R2qr3/4kqBP/Qq3b1N/bbK1NQQB/3Q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 b4 c5 e4 a5 h4 g5 b6 f5 b7 g3 b5 f3 b6 a4 Ba3 g4 Be2 f4 Ra2 f2 Bb5 f1B Bd3 f3 Rh2 f2 Ra1 g2 Qe2 g3 Kc3 Ra5 Kc2 Nh6 Nc3 Bg7 Qe3 Nf7 Qe1 Bg4 Nce2 Bf3 Nh3 Nd7 b8Q+ Qc7 b7 g1Q Bb2 a3 Qa8 c4 b8Q c3 Qb3 a2 Qa3+ Qc5 Ba6 g2 Bc8 Nf6 Bg4 Nh7 Qg8 Qh1 e5+ Kc7 d6+ Kc6 d7 Kd5 d8Q+ Ke4 e6 g1B e7 Nd6 Qd1 Qd5 Qd7 Bf6 Qf7 Rb8 e8Q+ Be5 Qee6 Qb3+ Kc1 c2 d5 B1g2 Bd4 f1R Bb6 Rb5 Bc7 Bb6 Qff6 Rf2 Qg1 Bf1 Qg2 Rc5 Kd2 Ra5 Re1 a1Q Qff7 Qd4+ Kc1 Ne8 d6 Qdd5 Qf4+ Kd3 Qd2+ Ke4 Qd1 Rb5 Qdf7 Qb7 d7 Nd6 d8Q Rc5 Qdf8 Rd5 Qed7 Ba1 Qfe6+ Re5 Bd8 Bc3 Bg5 Bcd4 Bf4 Bb2+ Kd2 Qg1 Rh1 Qh2 Rg1 Qh1 Bh2 Qc4 Qef7 Ree8 Qh8 Bd8 Qg3 B3g2 Qa7 Qcb4+ Qhc3 Rf4 Qc1 Rf6 Qaf2 Bb6 Nd4+ Be2 Ref1 Bc4 Qfe7+ Kd5 Re1 Be4 Qb1 Qf3 Qgg2 Qa3 Re3 Qf4 Ne2 Bf3 Qa1 Qb4 Qaa4 Bb3 Ra1 c1Q+ Kd3 Qa3 Qd2 Qcc6 Qd1 Qcc5 Qb4 Bc4+ Kc2+ Qcd4 Qc3 Qb4 Ra4 Ba2 Qa3 Qb5 Rb3 Qb4 Ra5+ Qb5 Qf7+ Ke5 Rc3 Qdd5 Rc8 Ke4 Qg8 Re5 Re8 Qb4 Qge6 Qbb3+
1qr3nn/2NBN1B1/1b2q1b1/n4NN1/2k1P3/2bR2B1/1Rr1BnKr/B3Q2b w - - 0 1 illegal: No possible last move
K1nRbQq1/1BqqBrN1/rb1q2nR/2Pr4/Q5QQ/4N1Qr/3Q4/6bk w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 c4 d5 f4 h5 g4 a4 b6 e5+ Kb5 a3 b7 a2 g5 d3 f6 d2 f7 h3 g6 h2 f5 d4 f6 d3 g7 h4 Qa4 d1R Nh3 Kf3 Qa3 e4 Qa4 e3 Nf4 h3 Bb2 d2 Ba3 e2 Ne6 e1R Nc3 Qd7+ Kb6 Nc6 b8Q Nce7 b5 Ng6 Qd6 N8e7 g8Q Bg7 Rb1 a1B Nd5 Bd4+ Bc5 Kf2 Bg2 Rf1 f8Q Bb7 f7 Bc6 Qfb8 Rh5 Qba7 Nc8+ Ka6 Qc7 b6 Be8 f8Q+ Bf6 Bf3 Bd8 b7 Qd7 b8Q Bb6 Ne3 Rh6 Rg1 h1Q Ng7 Qg2 Rh1 h2 Rb3 Qg3 Rd3 Rh3 Bb7+ Qf4 Qdf6 Kg3 Ba3 Qfc7 Be7 Bdc5 Qd4 Rf7 Qg4+ Kf2 Qh8 Bd4 c5 Qdd6 Re1 h1Q Qc2 Qg2 Qhh4+ Qgg3 Rh1 Qdd7 Rh2+ Kg1 Qa2 Rb1 Qc2 d1Q Qd2 Rb3 Rf2 Qg2 Rf6 Kh1 Rd6 Nf4 Rh6 Ng6 Nef5 Bg1 Ne3 Rb4 Rd6 Rd4 Rd5 Qch2 Qbg3 Qc7 Rd8 Rd5 Bc6 Qd6 Kb7 Qa4 Qaa5 Qd4 Qa4 Ra6 Ngf5 Qd7+ Kb8 Qg7 Bb7 Qg8 Ng7 Qe4 Qb3 Qee6 Qbc2 Ba7+ Ka8 Qed6 Qca4 Q6c7 Qge1 Qhd6 Qeg3 Bb6+
1kq1BR2/1B1RRP1R/5Q1N/b1q2rB1/B3n2q/3rr1bb/n5K1/b2Rq1N1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 h5 f4 e5 Kf2 a5 b4 d5 c4 Kd7 f6 Kc7 c5 h3 f5 a4 f7 h4 g5 h2 c6 d3 g6 a3 f6 d2 g7 a2 Qf3 d1Q Qc3 e4 Kg2 d4 Nd2 d3 Ndf3 d2 Ne5 e3 Ng4 Bd6 f8R e2 f7 e1B Qe5 Nf6 g8B Qb3 Qf4 d1R Bh7 Ra5 Qg5 Be6 Bc2 Ne4 Qf6 Na6 b6+ Kc8 b5 Nb4 Rb1 a1B Bg5 Qc4 Ba4 Bf4 c7 Na2 Nh3 Kb7 c8B+ Ka8 Ba6 Qdc8 b7+ Ka7 b8R Rd8 Ne3 Bg4 Rd1 Qc3 Bc4 Rd3 Rb7+ Ka8 b6 Bd6 Ng1 h3+ Kf1 Bb4 Nf3 Rc5 Re7 Ba5 Bcb5 Rcd5 Bd7 Qc5 b7+ Ka7 b8R Rh6 Rg1 h1Q Nf5 h2 Rb7+ Ka8 Be8 Rh3 Rbd7 Kb8 Bb7 Bf2 Nh6 Rf5 Ng8 Rg3 Nd4 Rge3 Ne2 Qf3 Rg3 h1Q+ Ng1 Qh7 Rh3 Qe2+ Kg2 Qe1 Rh6 Bg3 Rh2 Qg6 Rh6 Qh5 Rh7 Qh4 Nh6 Bh3+
3bR1bk/3r1Pr1/BR4n1/2N2Kqr/4RnR1/1b2Q3/q1q2BbN/B2rB1B1 w - - 0 1 illegal: No possible last move, all moves rejected
7q/P1b3N1/1Bk2r1n/R1bnK2b/5RR1/1B2br2/3QnnRq/NQ3qRR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 b5 g4 h5 a4 h3 d4 h2 d6 h4 f6 c4 g5 b3 a5 h3 f5 b2 d5 c3 a6 b4 g6 b3 g7 c2 f7 Rh5 f6 Nc6 a7 Nh6 g8R Nb4 Be3 c1B Na3 b1N Rg4 b2 Nc2 Rf5 Ne2 Rf3 Bb6 Be3 Nf4 Be7 Rgg1 Qh8 f8R Bb7 Rf7 Rf8 Nh5 Ba6 Ra2 Be2 Rfg7 Rf7 Na1 Bd8 Nf4 Bc7 Ra5 Bc5 R1g4 Be3 Rhg1 h1Q Ne6 h2 Qd2 Bd1 Bc4 Qg2 Qc1 h1N Bb3 Qh2 R7g5 Rf8 f7 Be2 Ng7 Rf6 Rf4 Bh5 R5g4 Nc3+ Kf3 Bg6 Qb1 Ne2 R4g2 Bh5+ Ke4 Bc5 Rfg4 Rf3 Qa2 b1Q+ Qc2 Re8 f8R Re6 Rff4 Rf6 Qd3 Qf1 Qb1 Kc8 d7+ Kb7 d6 Nd5 d8Q Kc6 d7 Be3 Kd3 e4+ Kc4 Nf2 Rh1 Rf5 Qg5 Rf7 d8R Rf6 Rg8 Bc5 Qg6 e3 Qgc2 Nec3+ Qd3 e2 Qd2 e1B+ Qbd3 Ne2 Qb1 Be3 Rgg1 Nd1 Kd3 B1f2 Ke4 Bd8 Ke5 Bc5 Nf5 Bfe3 R8g5 Nf2 Ng7 Qd1 R4g2 Qf1 R5g4 Bc7+
1b1rr3/2QqRb1k/8/nbQB1Nrr/1Q1Br1b1/4QQ1Q/4r2P/1n3KNR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 a5 b4 c5 d4 g5 b6 f5 b7 Kf7 e5 Kg7 e6 a4 b5 g3 d6 g4 d7 c4 d5 g2 b6 a3 e7 g3 e8Q c3 d6 f3 Qde2 f4 Qc4 f2+ Ke2 f3+ Kd3 a2 Bh6+ Kh7 Qb4 c2 Qa4 c1R Bd2 Rc2 Qc6 Nf6 Qe1 Nd5 Qe3 Nc3 Qcc5 Nc6 b8Q Na5 Na3 Nb1 Bc3 Re2 b7 Qe7 d8Q Bg4 Qdc7 Qd7 Qbe8 Rd8 b8Q Bh6 Qbb4 Bf4 Q8e5 Rhe8 Qe6 Be5 Nb5 Bf4 Nh3 g1R Bg2 f1B Bd4 f2 Bd5 Bg2 Qf6 Rge1 Ng1 f1B Qf8 Be5 Qff3 B2h3 Qc8 g2 Q8c7 Bh5 Qc8 Bf7 Q8c7 Qe7 d7 Bg4 Nd6 Bg3 Qc8 Qe6 Nf5 Bb8 Nh3 g1R Q8c7 Rc8 d8Q Qd7 Qde7 Rgg2 Ng1 Rcd8 Qcc3 Rg3 Qec5 Rh3 Qcb3 Rh5 Qh3 Nc3 Rb1 a1R Rb2 Rab1 Qef3 R2e4+ Re2 Rbc1 Kd2 Ra1 Re3 Re2+ Kd3 Nb1 Q3c3 Rf4 Re7 Raa2 Qd2 Rg2+ Ke3 Bb5 Qde2 Rg3 Kf2 Re4 Kf1 Rg2 Qed3 Rae2 Qfe3 Bf3 Qd1 Rg5 Qdd3 Bg4 Qef3 Qe6 Qde3 Qd7
1R2N1b1/N1n1b1R1/q1Q1Q1r1/1r4n1/k2n1Q2/1r1Q1rP1/BB1n1K2/1Qn3nQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 b4 a5 e4 h5 d6 f5 g3 c5 e5 f3 b6 Kc6 b7 f2+ Ke2 Kb5 d5 f4 d7 f3+ Ke3+ c4 e6 h3 d6 h2 e7 h4 e8Q h3 Ba3 a4 Qe2 Nf6 Qd3 Rg8 Nd2 Nh7 Qdg6 Na6 b8Q+ Qb6+ Kf4 Nc7 Be2 f1R Qee6 f2 Kf3 Re1 d8Q f1N d7 Ra5 Qh4 Be7 Qgh6 Rg6 Bb2 a3 d8Q a2 Ne4 Ka4 b5 c3 Bc4 c2 Ne2 c1N Qd3 Qa6 b6 Rb5 b7 Ng5+ Kf2 Nd2 Rb1 a1N Nf6 Nc2 Ba2+ Nd4 Ne8 Rb3 Rf1 h1R Qf4 h2 Qa8 Bd7 b8Q Rb5 Qec6 Be6 Qbb7 Bg8 Nc3+ Ka5 Qac8 Re3 Q8e6 Rb3 Nb5 Ka4 Na7+ Rb5 Rd1 Rhe1 Kg2 h1N Qh8 Nf2 Qh1 Nfh3 Qb8 Ng1 Kf2 Ncb3 Rdc1 Rd1 Rc5 Nc1 Rd5 Bf6 Rd7 Bd8 Rg7 Be7 Qde4 Rb3 Qd3 Re1 Qbc8 Rb4 Ba1 Na8 Q6c7 Rb7 Qcb6 Re3 Rb3 Rb8 Qcc2 Nc7 Qb1 Rb7 Bb2 Rb8 Rc3 Rb7 Rc5 Rb8 Rb5 Rb3 Qbc6 Rb6 Rd5+ R6b5 Rd8 Bf8 Ra8 Be7 Rb8 Rf3+
3n1Nr1/q2B1nBN/4rR2/BRQ2bB1/r5nK/1bBb1R2/p1Pbk3/5bR1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 Kf7 f4 Kf6 Kf2 a5 b4 h5 b6 e5 b7 d5 b5 a4 b6 h3 Kg3 d3 Nf3 a3 Bd2 d4 Bc3 d2 Nh2 e4 Rg1 a2 Na3 e3 Nb5 e2 Nc7 e1R Kh4 Qe7 Rb1 Nh6 Ne6 Ra4 Nf3 h2 Bh3 h1N Nfg5 Nf2 Rb5 Nc6 b8B Qa7 b7 Bb4 Bc7 Nd8 b8B Nhf7 Nf8 Rg8 Ba5 Re6 Qf1 d1B Qc4 Bf3 Qc5 Bg2 Bd6 Bf1 Be7+ Kg7 f6+ Kh6 f5 d3 Ngh7 d2 Rg3 d1B Rd3 Bde2 Rf3 Ne5 f7 Bd3 f6 Bd7 Bb2 Bd2 Bbc3 Bc8 Nd7 Kg6 f8B Nef7 Bh6 Bf5 Bef8 Ba6 Bfg7 B1d3 Bf4 Bf1 g5 Ng4 Rb7 Bac4 Rb5 Bd5 Be3 B5d3 Bf4 Kf5 g6 Ke4 Bg5 Bb3 Ndf8 Bdc4 Rg3 Bcd3 Rg1 Kf3 Rg3+ Ke2 Rf3 Nd6 f7 Bf5 Nd7 Bd3 f8R Bf5 Rf6 N6f7 Ndf8 Nf2+ Kg3 h4+ Kh2 Bd3 Bf5 h3 Kg3 Ng4 Kh4 Re7 Bd7 h2 B7h6 h1B g7 Rh8 g8R Re6 Rgg6 Rg8 Bg7 Bhg2 Rg3 Bb7 Rff3 Bbe4 Rgf6 Bg6 Rg1 Bgf5
3B2R1/2BrR1K1/Qqbn4/5NN1/R2n1r1p/bn6/1PR1BkBb/1r2rr1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 d4+ Kc4 g4 f5 g5 h5 d6 c5 g6 h3 g7 a4 b6 a3 d7 h2 b7 h4 d5 a2 d6 f3 Bg2 f2 e4 f1R Nc3 f4 Nce2 f3 Qa4+ Kd3 Bf4 f2 Ng3 c4 Nf3 c3 Nf5 Ke2 Ng5 Qb6 d8B c2 d7 Nf6 g8B c1B Bd5 Ra7 Qa6+ Ke1 Bc4 Ne8 Be2 Nd6 Kf6 Nc6 b8R Bb7 e5 Nd4 e6 Bc6 e7 Rh7 e8B Re7 Rg1 h1R Rc8 Re4 Be5 Rf4 Bf7 Rc7 Bfd5 Be7+ Kg7 Rb7 Rb1 a1N Rc7 Nab3 Ra1 Ra7 Ra4 Bd2 Rb7 Bb4 Rc7 Ba3 Rb7 Rh3 Bh1 Re3 Rg2 Rg1 Rh2 f1R Bdg2 Kf2 Rc7 Bd5 Rc2 Bc6 Rh3 Ree4 Re3 Rb1 Nf3 Rgf1 Ng5 Nc8 Bec7 Bed6 Be7 Re5 d8R Ree4 Rg8 Re6 Bcd8 Rd7 Bc7 Ree4 Kh6 Be5 Bed8 Nd6 Kg6 Rf3 Kh6 Bh2 Kg6 Ref4 Re7 Rd3 Kh7 Rdd1 Kg7 Rde1
5RNQ/rq6/2n1NP2/1k1N1KN1/1N1Rn2n/1rbbQ1B1/1pBr1N2/1rr3b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 b5 d4 c5 a4 c4 f4 h6 a5 h3 f6 h5+ Kf5 h2 g4 h4 d6 Kc6+ d7 c3 g5 b3 g6 c2 f7 b4 a6 b2 d5+ Kc5 g7 h3 d6 e4 a7 e3 Qe2 b3 Ra4 Qb6 Rd4 Ba6 d8N Nc6 d7 Nf6 g8N Ne4 Nc3 b1R Nd5 Bd3 Ne6+ Kb5 d8N b2 Ng5 Bc5 f8N Qb7 Nfe6 Rb8 a8Q Rh7 Qf2 e2 Qe3 e1B Be2 Rd7 Bd1 Bc3 Bd2 c1R Bc2 Rd1 Be1 Rd2 Bg3 Re7 N1f3 Ba7 Rf1 h1R Ng1 h2 N1h3 Rd7 Rf3 Rhc1 Rf1 h1N Nf2 Na5 Nc6 Rh7 Ncb4 Nc6 Kg4 Re7 f5 Rh7 f6 Rd7 Re1 Rg7 Bh2 Nhg3 Rd1 Nf5 Bg3 Rc7 Rh1 Rd7 Rh7 Nh4 Rf7 Bc5 Rf8 Qc8 Nh1 Ra7 Nf2 Rb6 Kf4 Qb7 Qb8 Rba6 Qe8 Ra3 Qh5 Rb3 Qh8 Bb6 Nd1 Bc7+ Kg4 Rh2 Bd6 Rd2 Nf2 Ng2 Kf5 Bb8 Be7 Bh2 Bd6 Bg1 Bg3 Nh4+
3R1rN1/1nk1N2N/1NPr3q/1b2N2n/4rp2/2nQ2nN/2K1bQRb/1B2Bn2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 b4 a5 c4 g5 h4 d5 e4 Kd7 c5 a4 b6 g4 b5 d3 c6+ Kd6 h6 f3 b7 d4 e5+ Kc7 h5 f4 h7 a3 e6 g3 e7 g2 e8N+ Kb6 h6 f2 Rh2 a2 Na3 Qh4 Nf6 Bd6 Nh3 g1N Nc4+ Kc7 Nb6 Na6 b8N Nc5 Rg2 Ne2 N8d7 Ra4 Ne5 Ng3 Bb2 Qg5 Bc3 Nb7 Qe2 Bg4 Rd1 Bc5 Kc1 a1N Be1 d2+ Kb2 Bf3 Qd3 Nb3 Kc2 Bg4 Be2 f1B Bf3 Rb4 Be4 Bge2 Bg6 Nh5 Be4 Ne7 Bf5 Rd8 h8N Rf8 h7 Qh6 Nhf7 Ra4 Bg6 Nf5 h8N Nfg3 Nfg5 Rb4 Ng8 Ra4 Rb1 d1R Nh7 Nd2 Bf5 Rb4 Nhg6 Ra4 N6e7 Rb4 Qf3 Ra4 Qf2 d3+ Kc3 Be3 Rb4 Bc5 Rd4 Rb4 Rd8 Re4 Qf3 Bg1 Qf2 Bh2 Bg6 Nf3 Kb3 d2 Bf5 Rd4 Bb1 Rd6 Kc3 Rc1+ Kb3 Rc4 Kb2 Re4 Kc2 d1N Nbc8 Bc4 N7g5 Nd2 Nh7 Nc5 b6+ Kb8 b7 Bfe2 Nd5 Ndf1 Nce7+ Ka7 b8Q+ Ka6 Qb4 Bb5 Qc3 Nb7 Qd3 Nc3 Ne3 Kb6 N3c4+ Kc7 Nb6 Qf6 Qc5 Qg5 Qf2 Qh6
1BQ1b1RR/2nnpRbK/1BkP1BR1/5r1b/1r2q3/nNN2rB1/n7/3Bn3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kf4 c5 Kf5 h5 Kg6 h3 g4 c4 f4 c3 d4 c2 b4 h4 f5 e3 g5 a4 f6 a3 b6 h2 d6 a2 b7 h3 f7 e2 b5 e1N b6 Nf3 d5 Ra5 Bb2 c1N Bf6 Rh7 Ne2 Rh4 Nd4 Bg7 f8R Na6 b8B Nc7 b7 Ne1 Nb3 Rb4 Be2 Ra3 Rg1 h1B Kh7 h2 g6 Bf3 Nc3 Bh5 Rf7 h1R Qc2 Ra5 Rg3 Rf1 Bd1 Rf3 Rb1 a1N Rg2 Bh6 g7 Na2 Rg6 Rab5 Qc1 Nac2 Rb2 Na3 Rh2 Rbf4 Rh4 Rf5 Rh3 Rb4 Rh2 Na6 Bc7 Qf8 b8B Qd8 Bb6 Nc7 Bf2 Bb7 Bg3 Bc6 Rh4 Qc8 Rh1 Qa6 Rh2 Qc4 Qc2 Kc8 d7+ Kb7 d8B Be8 d6 Qe4 Qc1 Kc6 Rh1 Ncb5 Bb6 Nc7 Qc2 Bc1 Rh3 Bb2 Rh2 Nh6 g8R Ng4 Qd3 Ne5 Qa6 Nd7 Qc8 Bg4 Kg7 Ba1 Rhh8 Bh5 Kh7 Bb2 Ne2 Be5 Nc3 Bd4 Bfh4 Bg7 Bg5 Qc2 Bf6 Qe4
k2nrN2/1p5R/b2KrN2/2nR2b1/P1bq3Q/Rn2BBB1/3n1B1n/R3rB2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 Ke4 c5 f4 Kc7 g4 h5 d4 h3 a4 c4 g5 h2 f6 b3 f5 b2 d6+ Kb6 Kd5 Ka7 f7 c3 g6 c2 f6 h4 g7 e4 d7 e3 Qe1 e2 Nf3 h3 Ng5 Rh6 Nh7 Na6 Qh4 e1N Be3 c1N Nc3 b1N Ne4 Be7 f8B Nb3 f7 Nf3 Nef6 N1d2 Bf2 Qb6 d8B Bg4 Bc7 Re8 Bcg3 Ka8 Ra3 Bd8 Bc5 Rg6 f8R Nh6 g8B Nf7 Rg1 h1B Be3 h2 Bef2 N7g5 Rf7 Ne6 Nf8 Qb4 Bb6 Nac5 Rh7 Be7 Be3 Nd8 Be6 Bh3 Bg4 B1g2 Bef2 h1R Bh5 Nh2+ Bf3 Bg4 Ke5 Be6 d5 Bg8 d6 Bc4 d7 Bh3 Be3 Ba6 Kd5 Be6+ Ke5 Bec4 Bef2 Nce6 Bbe3 Qb6 B1e2 Qb4 Rga1 Re1 Bf1 Nec5 Nd5 Bf6+ Kd6 Bg5+ Nf6 Qa5 Rb1 Qc3 Rba1 Nc6 Kc7 Qd4 d8R+ Ka7 Rdd7 Ka8 Rd5 Nd8 Kd6 Rg7 Ng4 Rge7 Nf6 Re6+
kNrn1QNr/p2R1N2/P1r2N2/1R1R2b1/K2B4/4q1bn/3b1Nn1/r2BrR2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 c4 Kd7 f4 Kc7 a4 e5 d4 b5 Kd2 Kb7 Kc3 h5 Kb3 b4 d5 e3 c6+ Kb6 g5 e4 g6 h4 c5+ Kc7 f5 e2 f6 e1B d6+ Kc8 a5 e3 g7 e2 c7 Kb7 c8N h3 d7 h2 c6+ Ka6 f7 Bc5 f8N Be7 c7 Kb7 Nd2 Bg5 Ka4 b3 Nh3 g1R Bb2 g2 Ne4 Bed2 Rb1 e1B Qf3 Qe8 Be2 Nh6 g8N Nf5 Bd4 Bg3 Nhf2 Rc1 Bd1 Nc6 d8R g1N Rd5 Nd8+ Nd7 Ne3 Qf8 Ng2 Nef6 Qe3 Rb2 Rb8 a6+ Ka8 Nd6 Rc2 c8R Rc1 Rcc2 Rc8 Nf7 Ra1+ Ra2 b2 Rc7 b1R Nb8 Rb6 Rcd7 Nh3 Rg1 h1R Ra3 Rab1 Rb3 Rbc6 Rbb5 Ngf4 Rg2 Re1 Rg1 Ng2 Rf1 Ra1+
3R1K2/nNr1Q3/1kB1RR2/1qb1N1R1/3nb2P/2b1N2R/1qNr2p1/3nnnB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 g5 e4 c5 h4 Kc7 b4 f5 d6+ Kb7 d7 a5 d5 a4 b6 g3+ Kf3 a3 b5 a2 e5 c4 e6 c3 d6 c2 e7 g2 e8N Ra3+ Be3 c1Q Nc7 Qb2 Nd5 Rc3 Qe2 Rc7 Na3 Qe8 d8R Ne7 d7 Nbc6 Re1 a1B Rh3 Na7 Nc2 Nec6 Bf2 Bb4 Qe7 Bc5 Re6 Rf8 Nde3 g4+ Ke2 g3 Kd3 f3 Kc4 f4 Kd5 Rg8 Rf6 Rg5+ Ke6 Rd5 Bd3 Rd4 Be4 Rd2 Bd5 Qh5 Re8 Qf5+ Kf7 Qg5 d8R Bf5 Kf8 Bd3 Be4 Qf5 Rd5 Nd4 Red8 Qd7 Rg5+ Qc6 Bd5 Be4 Rdd6 Qb3 Rde6 Qb2 Ne2 g1N Nc3 g2 Na4 Nge2 Bg1 f2 Nc4 f1N N4e3 Bf3 Be4 Nc1 Bd5 Nd3 Be4 Kb8 b7 Ne1 Bd5 Qb6 Bc6 Qa6 Bd7 Be4 Bc6 Ba3 Nc5 f3 Rff5 f2 Rf4 Nc8 Rff6 Ka7 b8N Kb6 Nb7 Bc5 Nd7+ Ka7 Nd1 Ne3 Ne5 Qa5 b6+ Ka6 Nc3 f1N Nd5 Nd1 Nde3 Qa4 Nd8 Ka5 b7 Na7 b8R Qab5 Nb7+ Kb6 Rd8 Q2b3 Rd5 Bc3 Rd8 Qb2
BnnbNb2/6q1/5RP1/NN3pN1/1rr2q2/N2k4/N1bb1B1R/QnQbK3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 a5 g4 h5 b6 c5 b5 f3 d6 h3 d7 h4 d5 Ke5 b7 a4 g5 h2 g6 c4 d6 a3 b6 c3 Bb2 a2 Ne2 h3 Na3 Ra4 Qd2 Ne7 Nd4 c2 Bg2 Rh4 Qc1 Qc7 d8N Bf5 d7 Rc4 N8e6 Nc8 d8N f6 Rf1 h1Q Ng5 h2 Rb1 Qg1 Ndb5+ Qd4 Bc3 a1B Rb2 h1B Rf2 Nc6 b8N Qg7 Na6 Nb8 b7 Bg4 Nb4 f5 Na2 Rb4 Rb3 Bb2 Qa1 c1B Nc6+ Kf4 e5 Ke3 e6 Qf4 e7 Kd3 e8N Be3 Na5 Bbc1 Re2 f2+ Kf1 Bb2 Be1+ Bc3 Rbb2 Bf6 Rec2 Bh5 Rc6 Bd8 Rf6 Bd1 Bc6 Be4 Bd5 Na6 b8Q Rc4 Qc7 Nb8 Ba8 Rb4 Qcc1 Rg4 Nf3 Rh4 Kg2 f1N Bf2 Nd2 Kg1 Nb1 Kf1 Bd5 Ke1 B5b3 Ng5 Bbc2 Bg1 Qf3 Bf2 Rhc4 Bh4 Qf4 Bg3 Ba4 Rh2 Bac2 Bf2 Bd2+
5qn1/3NNN2/2b1pqq1/1P2b1q1/1Q1B4/b2rBkr1/BRq2BN1/R1KnB3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg6 d4 a5 Kd2 c5 b4 h5 b6 e3+ Kc2 a4 g5 Kf5 d6 Ke4 g6 e6 b7 c4 g7 a3 d5 a2 b5 e2 f5 e1B d7 h3 d6 c3 f6 h2 f7 h4 Na3 h3 Qd2 Na6 b8N Nc7 Bc4 Bb7 Nf3 Bg3 Ne1 Bc6 Ng2 Qg5 d8B Kf3 d7 Be5 Bf6 Nd5 d8B Bc5 Rb1 a1Q f8B Rh6 Ba5 Rg6 Rg1 h1Q Ba2 h2 Nd7 Rd8 Nc4 Ba3 Bc5 Qb2+ Kd1 Qb4 Bf2 Qf8 Rf1 Qg1 Rb2 h1Q Nd6 Qhh4 Nf7 Qh8 Kc2 Ne3+ Kb1 Qhh6 Qd6 Nd1 Bce3 c2+ Kc1 Qhh4 Bae1 Qd4 Qb4 Qdf4 Nb6 Rd3 Nd7 Qfh4 Be7 Qf6 B7c5 Rg3 Ba7 Qhg5 Bd4 Nh6 g8N Qgg6 Ne7 Ng8 Bc5 Qh2 Ba7 Qhh5 Bab6 Qhg5 Bd4 Bc7 B1d2 Nc3 Rd1 Na4 Bde1 Rc3 Kd2 Be5 Rb3 Nb2 Ra1 Nd1 Nf4 Kg4 Ng2 c1Q+ Ke2 Qcb1 Kd2 Kf3 Rb2 Rb3 Nc5 Qbf5 Nd7 Qd3+ Kc1 Qe2 Nd6 Rd3 Nf7 Qc2+
qB1r1NKb/Bn3n2/Rp4Bn/bQ4N1/1n1N1nr1/N3R1B1/P1q1b3/2Bk4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Kf4 f6 e5 f7 h5 d6 c5 Kd5 b3 d7 c4 Ke6 b6 g5 c3 f3 b2 g6 h3 g7 h4 Qb3 e4 d4+ e3 d5 h2 d6 h3 Bg2 c2 Na3 b1Q Qb5 Nh6 g8N Bg7 f8N Ba6 Ne7 Rg8 Nf5 Bh8 Nd4 Nc6 Bf1 Rc8 Bd3 Rg4 Bg6 Qb2 Rb1 Na5 Ra1 Kg3 f4 Kf2 f5 Ke1 f6 e2 f7 Kd1 Ngf3+ e1B Ng5 Nb7 Rg1 h1N Rg3 h2 Rf3 Qc7 d8B Qb8 d7 Qa8 Bc7 Ba5 d8B Ng3 Bb8 h1N Ba7 Nf2 Bc7 Nd3 Bcb8 Nb4 Rb1 Rd8 Re3 Qc3 Rb3 Ngf5 Bg3 Nc6 Rb4 Qc5 Ra4 Nb4 Nd7 Qc7 f8B Nf7 Bfd6 Qc3 Bdb8 Qd3 Bb2 c1N Nf8 Ne2 Bc1 Qc2 Nb3 Bc3 Nd4 Nf4+ Kf6 N5h6 Kg7 Nf5+ Kg8 Bb2 Nb3 Bh8 Nd4 Nbd5 Qe8 Be2 Qe5 Be1 Ra6 Ba5 Qe8 Nb4 Qb5 N5h6+
1n4k1/b1K1r3/PBb2B1B/1p1Nr2Q/5qB1/r1qR3N/rr1B3R/qB3Qn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 b5 f4 c5 a4 c4 d4 h3 a5 h2 g5 h4 g6+ Kg7 d6 b3 Kd5 h3 a6 b2 d7 c3 Bd2 e4 Be2 e3 Bg4 c2 Nc3 b1R Ra3 Nh6 f6+ Kg8 f5 c1Q g7 Qc7 d8B Qf4 Bb6 e2 Rb3 e1R f7+ Kh7 f6 Bc5 f8B Re7 f7 Bd7 Qf3 Nf5 Ra3 Ng3 g8B+ Kg6 Qe2 Rb2 Bh6 Qe1 Qd1 Ne2 f8Q Be8 B8e6 Kh7 Rb3 Rg8 Bef5+ Rg6 Qf6 Kg8 Bb1 Qeg3 Qf5 Rge6 Qc1 Re3 Qh5 Raa7 Qd1 R7e6 Qf1 Rae7 Na2 Qe1 Rd3 Qc1 Nb4 Qc3 Bc7 Ba7 Bb6 R6e5+ Kd6 Bc6 d5 R7e6+ Kc7 Re7+ Kc8 Rf3 d6 Ra2 d7 Rfe3 Nf3 Ng1 d8B Re2 Ng5 Ra3 Be1 Rb2 Nd5 Rba2 Qf3 Rg7 Bf6 Rge7 Bc2 Ne2 Rg1 h1R Bd2 h2 Nh3 Rb2 Rg2 Rha1 Kd8 h1Q Rh2 Qb1 Qf1 R1a2 Kc8 Qa1 Bb1 Ng1 Kd8 Nd7 Kc7 Nb8+
2N1n3/3r3P/1RQ5/q1qn1Nq1/2N1Kbq1/pbN4N/Bq1B1r1r/kNQR4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 h4 Ke5 b4 Kd4 h5 f5 b6 a5 b7 c5 h6 g5 d6 f3 e5 a4 d7 f4 e6 a3 e7 c4 e8Q c3 b5 c2 b6 Ne7 Bc4 Na6 b8N Nd5 b7 Ra7 Nh3 Nac7 Ba2 Bd6 Nc6+ Kd3 Qe6 Ne8 b8N Qa5 d8N Rd7 Nb4+ Kd4 Nb7 g3+ Kg1 f2+ Kg2 Be5 Kf3 g2 Qc6 g1Q Nd6 Bb7 Rh2 f1R+ Rf2 Ba6 Nc8 Bc4 d3 Qc5 Bd2 c1Q Qc2 Qb2 Qc1 Bb3 h7 Rg8 Qf6 Rf8 Qc6 Re1 Rf1 Re2 Re1 Rh2 Rd1 Re7 Nd7 Rf6 Ndb6 Rd7 Nc4 Qa5 Nf2 g4+ Ke2 g3 Kf3 g2 Nh3 Nb6 Nd5 Rff7 Ndc3 Nd5 Kg4 f3 Kg5 f2 Kg6 Ndf6 Kf5 f1Q+ Qf3 Kc5 d4+ Kb4 d5 Qe2 d6 Qgc5 Qe4 g1Q Qc6 Rb7 d7 Bf4+ Qd5 Qge3 d8N Rbd7 Ne6 Qg3 Nd4 Qh4 Qe5 Nd5+ Qf6 Qeg4+ Ke4 Qhg5 Qc6 Be3+ Kd3 Rff2 Nf5 Bf4 Ke4 Ba4 Bb3 Qa2 Nce3 Qb2 Ra2 Qa1 Rb2 Qa2 Ng2 Qa1 Bc2+ Kc4 Rb8 Qb2 Rb6 Nb4 Bd3+ Kb3 Bb5 Nd5 Nge3 Rb7 Ne2 Ka2 Bc4+ Ka1 Ba2 Rg7 Nec3 Rd7 Nc4 Bb3
2k2bQ1/2B1pBR1/P1r3bB/3nNn1b/2br3q/1RN1b1q1/1B3B2/n1KQ1B2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 c5 a4 b5 f4 h5 g4 c4 f6 b3 f5 c3+ Ke3 h3 g5 h4 a5 c2 Kd2 h2 g6 b2 g7 b4 f7 b3 d6 h3 d5 Qc7 a6 Rh6 f6 Nc6 Qe2 Nd4 Nf3 Nf5 Rg1 h1B Ra5 h2 Nc3 b1B Ra3 b2 Rb3 Kd8 d7 Qg3 Ne5 Bf3 Qd1 h1Q Rg2 Qhh4 Rg1 Kc7 Rg2 Bb7 d8B+ Kc8 d6 Bh5 Bb6 Bd5 Bf2 Bc4 Rg1 Ra7 Rg2 Rc7 Rg1 Rc6 d7+ Kc7 d8B+ Kc8 Bc7 Rg6 Qe2 Rg4 Qd1 Rd4+ Ke1 Rd2 Rg2 Ngh6 g8B Ng4 Rg1 Nge3 Rg2 Bh6 f8B Nd5 f7 Be3 Bg7 Bh6 Bf6 Bf8 Bg5 Ba2 Bh6 b1N Ba3 c1B Bb2 Na3 Rg1 Bb1 Rg2 Qgh3 Rg7 Q3g3 Qc2 Re2+ Kd1 Be3 Qd3 Rd2+ Kc1 Nc2 Qe2 Na1 Qd1 Be4 Rg4 Bg7 f8Q+ Be8 Qf7 Bf8 Rg7 Bf3 Qg6 Bh5 Qh7 Beg6 Bf7 Bg5 Qh8 Be3 Qg8 Rd4+
1rNNKR2/r1NP1nR1/3b4/3B2BN/NnQ2qk1/2Qpq3/3Nb2n/r1r1r3 w - - 0 1 illegal: No proof kernel
1N1R4/2NPR3/QQb1brbN/K2bp3/2Nq3n/Bnr2N1B/r7/kN1q2b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kf7 g4 Kf6 d4 h5 Kd2 c5 f4 b5 a5 c4 d6 b3 Kc3 h3 Kb4 c3 d5 h4 d7 h2 d6 b2 a6 c2 a7 h3 Qd3 Nh6 Nf3 Nc6+ Kc3 Na5 Kb4 Qb6 d8Q Be6 Ra3 Qf2 Qb6 Qd4+ Qc4 Rh7 Rd3 Rf7 Rg1 h1B g5+ Kg7 g6 Kf6 g7 h2 Rd2 Nb3 Bh3 Bg2 Re1 h1B Nh4 Bc6 Nf3 Ng4 Re3 Ne5 Ree2 Ng6 g8N+ Kg7 Rd3 Nh4 Nh6 Kf6 Re5 Nd2 Ka5 b4 Qca6 b3 Nc3 b1B Ba3 c1Q Re2 Bc2 Nb1 b2 Re5 Rc8 a8N Qd1 Nc7 Ra8 Ng5 Bhd5 Nf3 Kg7 f6+ Kg6 Nc3 b1R Re2 Rb4 Nb1 Rb3 Re1 Bg7 Re2 Rff8 f7 Kf6 f5 Rc3 Ree3 Rfc8 f8N Ra7 Ng6 Rf8 Nf7 Bh6 Re5 Be3 Nh6 Bg1 Re1 Raa8 Nge5 Rf7 Nc4 Nb3+ Kb4 Rg8 Rd2 Rg2 Re3 Bce4 Rdd3 Ra2 Rd2 Kg7 f6+ Kg6 Rdd3 Rf8 f7 Kf6 Rd2 Bg6 Re5 Rh8 f8N Rh7 Re3 Rf7 Ng4+ Kf5 Nd7 Rf6 Nb8 Kf4 Ree2 Kf5 Nh6+ Kf4 Rf2 Ke4 Rde2+ Kd3 d7 Qd2 Re5 Kc2 Rg2 Qe2 Rg4 Qed1 Rg3 Bh7 Rg8 Bg6 Rd8 Bg8 Rf5 e5 Rf4 Bge6 Rg4 Bd3 Rg7 Bg6 Re7 Be3 Nbd2 Bf2 Ne4 Kb1 Ned2+ Ka1 Nb1 Bb7 Kb5 Bg1 Ka4 Bbc6+ Kb4 Nd2 Ka5 Nb3+
R2q1nkN/1R1p1r2/2Q1n3/b3r1BB/3NR1R1/q1NPr1r1/q1rb4/1N3NK1 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Nf6 b6 Bh6 b5 Rg8 c5 Bf8 c6 Bb7 cxb7 Rh8 Qa4 Ng8 Qc2 Bb4 Qd1 Bf8 Kf2 f5 e4 Kf7 g4 a5 e5 h5 g5 c5 d3 a4 Bg2 f3 Bf1 h3 Be2 h2 Nd2 h4 Nf1 a3 Ne3 c4 Nh3 f4 Ng1 h3 Qc2 a2 Nf1 Na6 b8R c3 b7 Nc7 b6 Ne7 e6+ Kg8 g6 Ra5 g7 Re5 Ra8 Ng6 b8R Bb4 b7 Ba5 e7 Nf8 e8N Nce6 Nd6 Rh6 Bd1 Rg6 Nf7 Rg3 Nh8 Re3 Rb1 a1Q Rb4 Qa2 Ne2 Re5 Rg1 h1R Bd2 h2 Re4 Qa3 Qa4 c2 Qc6 c1B Nc3 Qa2 Nb1 Qa3 Bb4 Bd2 Be7 Qa2 Rg2 Rg1 Bf6 h1R Bg5 Rhh3 Be2 Rgh1 Bd1 R1h2 Kg1 Kh7 g8N Qa3 Nf6+ Kg7 Nd5 Kg8 Nfe3 f2+ Kf1 Qa2 Ndc3 Qa3 Rg1 Rhg2 Bh5 Rgh2 Ke2 f1R+ Rg2 Rff3 Nf1 Re3+ Kf2 f3 Kg1 Rh4 Ra7 Rf4 Rba8 Rf7 b8N Rh4 Ra4 Rc4 Rb7 Rcc5 Re4 Qa2 Na4 Rc2 Nac3 Qa3 Qd6 Qa2 Nc6 Qa3 Nd4 f2+ Kh2 Qa2 Qc6 Rc1 Nb3 Rgf3 Bg6 Be1 Rgg4 Rg3 Nd4 Qa3 Nfd2 f1Q Bh5 Qf2+ Kh1 Qe2 Nf1 Qea2 Rc8 Bd2 Ra8 Rc2 Kh2 Rgf3 Kg1 Rg3+
4B1nn/1PRb1qBB/1n2n1NB/kp1RBqN1/r3n3/4br2/4KqQ1/2Q4B w - - 0 1 illegal: No proof kernel
1QBbN1q1/br3R2/5B2/1Kn1RqRb/B1nq1r2/1B3n1p/6PB/1N2Rb1k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 d5+ Kb3 a5 Ka4 f5 b4 h5 c4 f3 b6 h4 g6 f4 g7 f2 b5 h3 c5 f3 c6 d3 b7 d2 b6 Kf4 e5 Kg3 c7 d4 e6 d3 e7 Rh7 e8B Be7 Rh2 Nf6 g8B Ng4 Ba2 Na6 b8R Nc5+ Kb5 a4 b7 a3 Bg8 a2 Bb2 Ra4 Qb3 d1Q Rh1 d2 Bf6 Rf4 Bd3 f1Q Ne2+ Kf2 Ng3 Ne5 Nh5 Bg4 Ng7 Bh5 c8R Qd4 Ra8 Bd8 b8B Qde2 Bc6 d1N Rc7 Nb2 Rf7 Nbc4 Ne8 Kg3 Qb4 f2 Ra5 Qg4 Bf5 Nf3 Bc8 Qfd3 Qb3 Qdf5 Re1 Kh2 Re5 f1B Bc7 Kh1 Bd6 Qfg6 Rg5 Q4f5 Bde5 Rg4 Bh2 Rf4 Qb2 Qd1 Qe5 Qd4 Qb8 Rg7 Nc3 Rh7 Re1 a1B Nb1 Rg7 Raa7 Bc3 Rae7 Bca5 R7e5 Bab6 Be4 Qh7 Bc2 Ba7 Ba4 Qh8 Bh7 Qg8 Bb3 Qg4 Bhc2 Qf5 Ba4 Rh7 Bcb3 Rg7 Rf8 Rd7 Rf7 Rb7+
8/nB1Q1R1n/5Qn1/4BNb1/1qBB4/2qpPrn1/R1B2brq/Kbk3NB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 c4 Ke5 Kc2 Ke4 Kb2 d5 g4 a5 c5 h5 g6 f5 g5 d3 c6 a4 g7 d2 b6 Ke3 b7 a3+ Ka2 h4 g6 d4 b5 f3 b6 f4 c7 f2 Qc2 h3 Qa4 f3 Rh2 Nd7 b8B Qf6 b7 Bc5 Qa5 Nf8 Qa4 Ne7 g8B Bf5 c8B Nh7 g7 Ng6 Bd5 Rf8 Nc3 Bb1+ Kb3 a2 Kb2 d3 Rh1 h2 Bg2 f1Q g8B f2 Bb3 Qe1 Bc2 f1N Bc4 Ng3 Qd7 Qc6 Nb5 Rf3 Bc7 Be7 b8Q Bg5 Bb7 Ra4 B4b3 Rg4 Be5 Qc4 Qh8 Qa4 Nh3 Qb4 Rf1 h1Q Nd6 Qh2 Qf8 Nh5 Bh1 Rg2 Qf6 Qc3+ Ka3 Ng3 Bb2 d1N Ng1 Kd2 Rf2 Qc4 Bbc3+ Kc1 Bcd4 Nc3 Nf5 Qc8 Bc4 Nb5+ Kb3 Na7 Ka3 Qa5+ Kb3 Kd2 Kb2 Qb4+ B2b3 Bc2 Raf1 a1B+ Ka2 Bb2 Ba4 Bc1 Ka1 Bb1 Bd1 Ba3 e3+ Kc1 Re2 Qcc5 Ref2 Qc3+ Rb2 Bb4 Rf2 Ba5 Bc2 Q3b4 Ra2 Bd8 Qfc6 Bh4 Qce6 Bdg5 Qf6 Qca5 Qfd6 Qaa3 Qf6 Qac3+ Rb2 Nh5 Ng7 Ngf8 Qa6 Rh3 Rf7 Rf3 Nf5 Bf2 Qad6 Ng6 Qf6 Qd2 Ra2 Ng3 Bca6 Qe1 Bc4 Qec3+
2R3r1/N2q2nr/b1qB2q1/1RR1QR1B/3n2PK/r1B3bn/1p2BN2/2k3nB w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 a4 Kd6 e4 Ke5 g4 Kd4 d3 f5 d6 b5 e5 c5 a5 h5 e6 b3 d7 b4 a6 b2 g6 b3 g7 f3 Kg3 h4+ Kh3 f2 a7 c4 e7 c3 e8B c2 Bf4 c1N Qe2 Nf6 g8B Ba6 Qe6 Bd6 Be5+ Ke3 d4 f4 d5 f3 Bef7 Ne2 Ra5 Ne8 Nc3 Kd2 Nb5 b1Q Bc3+ Kc1 Bh5 b2 Qe5 Qg6 Bf7 Qc8 d8R Qd7 Rc8 Rg8 Rc5 Ng7 Be8 Bc7 d6 Nc6 Bf7 Bb8 Bd5 Ncd4 Be4 Qc6 d7 Bd6 d8B Bc7 Qf5 Bg3 Qe5 Qd7 Bc7 Qgc6 Bg2 f1R Bd3 f2 Bd6 Re1 Bc4 f1Q Rh2 Qf2 Bh1 Qff5 Rf2 Qg6 Rf5 Rf1 Bd3 Rf3 Bc4 Rac8 a8R Rc7 Rc8 Rd3 Bb4 Ra3 Na7 Rb7 Rab5 Rc7 Nf3 Rb7 Bc3 Ng1+ Kg2 Rc7 Be2 Rb7 Qd5 Rc7 Ng5 Rb7 Ne4 h3+ Kf1 h2 Kg2 Rh8 Nf2 Rb8 Rc7 Rbg8 Rc8 Rh7 Be7 Bb8 Bd6 Bc7 Kg3 Bb8 Bhf3 h1N+ Kh4 Bc7 Qe5 Bb8 Nd1 Nf2 Bh1 Nfh3 Nf2 Qge8 Qf4+ Kc2 Be7 Qeg6 Bf8 Be5 Bd6 Kb1 Qe4+ Kc1 Qd5 Bh2 Qe5 Bg3+
n4rBN/1rNR3Q/3R2N1/rnq1B1P1/kr1nb1p1/3b3K/B2N4/B2q2bB w - - 0 1 illegal: No possible last move, all moves rejected
3Kn2R/NN1bq3/2BBr1b1/1R3P1N/kBB4N/1rn2Q2/4p1nN/q1q1b1n1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 h5 g4 e3 d4 e2 f4 e1N b4 e6 f5 h3 b6 h4 b7 h2 b5 c4 g5 c3 g6 c2 b6 h3 g7 a4 d6 Kc6 d7 a3 Nd2 a2 Ndf3 Ra6 Bd2 c1Q Bg2 Kb5 d5 Ne7 Kf6 e5 g8B e4 d6 e3 Nh4 Nd5+ Ke6 Ra3 Rb1+ Rb3 Ngf3 a1Q Bb4 Na6 b8B Nc3 b7 Nc7+ Kf7 Qg5 d8N Ka4 d7 Rh6 Ne6 Ne8 d8N Bd7 Nf4 Re6 Nh5 e2 Qd5 Bc5 Bd6 Bf2 b8N Qge3 Nbc6 Qc5 Rg1 h1B Nb7 h2 Na7 Qc7 Bh3 Bg2 Rh1 Bg3 Bg4 Bh3 Qe4 Ng2 Qe3 Be1 Qf2 Rh6 Ke7 Qc5 Bc4 Re6+ Kd8 Q5e3 Rg1 h1N Nh2 Qe4 Qf4 Nf2 Bf3 Bg4 Rh1 Nh3 Qe3 Ng1 Qf4 Qe5 Bc6+ Nb5 Qf3 Qee3 Ng7 Bh5 Rb2 Bg6 Nh5 Qg5+ Nf6 Ra3 Nf1 Qge3 Bbc5 Bh5 Ng6 Rc3 Rh4 Re7 Nh2 Qg5 Ba3 Re6 Rb1 Bg4 Rh8 Bh5 Nh4 Qg7 Rb3 Bg6 Nh5 Rce3 Rd3 Qf8 Rd5 Rb3 Bab4 Qfg7 Re5 Qf7 Be4 Nc3 Rb5 Qg7 Bc6 Qe7+
1Nr1nRB1/bR3B2/qqR1bnB1/1B1QRp2/5rPn/k7/Nn1b2K1/4q1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 g4 Kd6 e4 Kc5 c4 Kb4 e5 f5 b3 h5 b6 a5 c5 d5 e6 d3 c6 d2 g6 h4 g7 d4 c7 d3 b7 f3 e7 h3 e8B h2 Bh5 a4 Qe2 d1Q Qe5 d2 Bb5 a3 Ne2 a2 Bg6 Be6 c8B Bc5+ Nd4 Nd7 b8R Qb6 Nc3 Ndf6 Rb7 Ne8 Re1 h1Q Qd5 Qh6 Re5 Ngf6 g8B Ra4 Rb1 a1B Na2+ Ka5 Rc7 Bc3 Rc6 Qe2+ Kg3 d1N Be3 f2 Kg2 f1N+ Bf2 Qe1 Bg1 Nd2 Bd7 Nd6 Bde8 Nf3 Bef7 Nde8 Bd3 Qa6 Rd6 Qhe3 B8h7 Ng7 Nc6+ Kb6 b4 Bd2 b5 Rf4 Rb3 Ra8 Bhg8 Nb2 Bf1 Kb7 Bd3 Ba7 b6 Qc5 Rd8 Qd6 Rc3 Rc8 Rf8 Nge8 Bc4 Qb5 Bf1 Ka6 b7 Qc5 b8R Qb6 Rb7 Qc4 Bc5 Kb5 Bg1+ Ka4 Nb8 Qca6 Rc6 Ka3 Bb5 Nh4+
1N3r2/1QqBB1R1/2rqb1K1/NbqB1p2/1P1b1N2/N3Rr2/NB2nkq1/5n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 a5 b6 h5 d6 f5+ Ke5 f3 e4 h3 d7 a4 d3 h2 g5 f2 g6 h4 b7 a3 g7 a2 Na3 h3 Qf3 Nh6 g8N Bg7+ Nf6 Rf8 Bg2 f1R Ne2 Ra6 Nf4 Rc6 Rg1 h1B b3 h2 Bb2 Bh8 Re1 a1Q Re3 Qc1 d4+ Kb4 d5 Kc5 d6 Ng4+ Ke6 Qc4+ N6d5 Bd4 Qh3 Rf3 e5 Qc3 Qh7 Qc1 Re2 Ne3 Nb4 Nf1 Na2 Qc2 Re3 Qd3 Bh3 Bg2 Bg4 h1Q Bh5 Bh3 Rg7 Qg2 Bg6 Bg4 Bf7 Bh5 Bg8 Be8 Qh1 Bc3 b4+ Kd4 Bf7 Qb5 Bg8 Qc5 Bf7 Qh4 Bg8 Qh6+ Ke7 Qhg6 d8B Be6 Bf7 Q6g3 Kf6 Q3h2 d7 Qd6 Rd3+ Ke4 Be7 Bd4 d8N Qh7 Rd2 Ke3 Rd3+ Kf2 Rc3 Ra6 Rb3 c5 Re3 c4 Nc6 c3 Na5 Nc6 b8N c2 Rg3 c1Q Rg7 Qgh2 Kg5 Q7h3 Kg6 B8d7 Bg8 Qcc5 Bf7 Bc4+ e6 Bb5 Bg5 Qc7 e7 Q3g2 Bd5 Be6 e8B Q7d6 Bd7 Qc7 Ne2 Qhd6 Nf4 Ne5+ Kh7 Nd3 Kg6 Nc1 Qh7 Ne2 Qh1 Kg3 Be7 Rc6 Qh8 Rf7 Qc8 Rf8 Qb7 Kf2+
2N4r/1qNr1n2/1q1b2bB/R2RpN2/KBn1N3/Nb2n1PQ/1kB5/n1q2B2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 h5 Kc2 e5 Kb3 a5 g3 d5 c5 d3 b6 d4 c6 h3 b7 h2 c7 h4 Ne2 h3 Nec3 d2 Na3 d3 Qg4 d1N Ka4 d2 b4 Ne3 b5 Nd7 b8N Ra6 b6 Nh6 b7 Rd6 Nc6 Nf7 b8N Rd3 Nd4 Bd6 Rg1 h1B Nbc6 h2 Ne7 Be4 Qh3 h1Q Rg2 Ba6 c8B d1Q+ Rc2 Qdf3 Rd2 Bc4 Bb7 Ba2 Nc8 Qb6 Bd5 Qb7 Bb3 Qf2 Rd1 Qb2 Bc2 Q2b6 Rd2 Bf3 Rd1 Bh5 Bd2 Bg6 Ne4+ Kg7 Bb4 Rd2 Bg2 Rd3 Rd2 Qc1 f6+ Kf8 f5 Ke8 Qg4 Kd8 Bf1 Kc7 Rd1 Rd2 Qh3 Rd3 Ne6+ Kc6 Ng7 Kd5 Rd2 Kd4 Rd1 Nh6 f7 Rd2 f8B Nf7 f6 Rd3 Ne8 Rd2 Nc7 Rd3 Be1 Rd2 Bh6 Rd3 Nd2 Kc3 Ne4+ Kb2 Bd2 Q6a7 Bb4 Nb6+ Kb5 Nbc4+ Ka4 Qab6 Rd2 Nd8 f7 Rd5 f8N Nf7 Rd1 Qb8 Nb1 Q8b7 Bb3 Be7 Nfe6 Rd7 Nd4 Bc5 Bc2 Bd6 Nbc3 Bb1 N3b5 Ng4 Nf5 Nge3 Rd5 Qd1 Ra3 Qd2 Rc5 Qc1 Rd3 Ka1 Kb3 a4+ Kc3 Ka2 Rdd5 Ka1 Ba5 Ka2 Kb4 Kb2 Bd1 a3 Ka4 a2 Na3 a1N Bb4 Ba2 Ra5 Re8 Bb3 Rh8 Bc2 Bb3+
r1B1q1R1/8/R1B1rkb1/1pq4R/1BR3B1/r2n2bK/QPN1q1n1/1N2R1nq w - - 0 1 illegal: No possible last move, all moves rejected
3q2nk/B2B1rR1/4PR2/B3q3/nR3B2/rK2Qpb1/2nrr2B/1bN1Nb1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 Kg7 g4 h5 b6 a4 g5 f3 g6 a3 e5 f4 e6 f2 b5 c4 b7 h3 d6 h2 d7 a2 b6 h4 d5 f3 d6 h3 Bf4 Na6 b8B Nc5 b7 Ra3+ Qb3 Rh7 Ne2 Kh8 Nc1 Rf7 Ba7 Na4+ Kc2 c3 b8B Be7 Bb5 f1B Bc7 Bb7 g7+ Kh7 Bc6 Bh4 Qb6 Bg3 Qe3 Qg5 d8R Qe5 Bd7 Be4+ Nd3 Bg6 Nd2 Be4 Rb1 a1N+ Kd1 Nc2 Ne1 Bg6 Rb4 Bgd3 Nb3 Bf5 Rg1 h1R Nc1 Rh2 Rh1 Re2 Rf8 h2 Bcb8 Re7 Rf6 Rf7 Be8 Bg6 d7 Bd3 d8B Be4 Rg1 h1Q Ba5 Qh4 Bd7 Bg6 Rf5 Qd8 Rf6 Nh6 g8R Bf5 Rg4 Kh8 Rg7 Ng8 Na2 Nd4 Kc1 Bb1 Bbc7 c2 Rh1+ Bh4 Bh2 Bg3 Bd6 Nb6 Kb2 c1R+ Qd2 Rc4 Nc1 Nc2+ Qc3 Rd4 Qe3 Qf5 Bc7 Rdd2 Bf4 Qe5+ Rd4 Ra2+ Kb3 Na4 Rb4 Ra3+
1N1Rbb1Q/Nkr1b3/4P3/2nNR1n1/2KQ1pB1/1N2q3/1rr2Nq1/bnN1B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 b4 a5 e4 c5 g4 Kc7 e5 a4 d6+ Kb7 e6 a3 g5 a2 b6 h3 d5 f3 d7 f4 g6 c4 b5 f2 d6 h2 g7 h4 Bd2 h3 Ne2 Ra5 Be1 Nh6 g8N Qf6+ Qd4 Ra8 d8Q Qe5 d7 Na6 Nc1 Ra7 Nf6 Nc5 Nd2 Nf7 Nd5 Ng5 Be2 f1N Ne4 Nd2 Bg4 Nb1+ Kb4 c3 Nf2 c2 Kc4 Rh7 Rf1 Be7 Qh8 h1Q Rg1 h2 d8N+ Ka8 Rg3 Bd7 Rd3 Be8 Nc6 Rb7 Na5 Qe3 Nab3 Qg2 Rd2 Rc7 b7+ Ka7 b8N h1R b6+ Kb7 Rd3 R1h2 Nc6 Rg7 Na7 Rf7 Ne2 c1B Rd2 Ba3 Nec1 Rc6 Re2 Bf8 Rd2 Rfc7 Re2 Ka6 b7 Rb6 b8N+ Kb7 Nd2 Rb2 Ndb3 Nc3 Rb1 Rc2 Rb2 a1B Ra2 Bb4 Ra6 Rb2 Rd6 Nb1 Rd8 Bc3 Qd2 Bf6 Qc3 B6e7 Qcd4 Qd2 Re5 Qe3 Bd2 Rh1 Bc3 Rd1 Be1 Rdd2 Qg8 Re2 Qh8 Rec2+
1B1Bnb1N/rq6/4pB1Q/1RbRNRnR/2n1k3/1b2P1Bb/1R2K3/1r2q2r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 d4 Kd7 b4 Kd6 h4 c5 b6 f5 b5 a5 h5 g3 g6 g2 h6 e6 b7 f3 g7 c4 h7 a4 b6 f4 Na3 c3 Rb1 c2 Rh5 Ra7 Nh3 g1N Qd2 Bd7 Ng5 Qc8 Rb2 Nc6 b8R Ne5 b7 Nf6 g8R f2+ Kf1 Nh3 Nc4+ Kc7 d6+ Kc6 Rb5 a3 Nf7 a2 Rgg5 a1Q Rf5 Ng5 Qe3 Be8 d7 Qc3 Bb2 c1B d8B Qa5 Bc3 Bca3 Be1 Bac5 Qh3 Kd5 e3 Qc3 Ke2 f1R Bg3 Ke4 d5 Rb1 d6 Qa5 Rb2 Ba4 d7 Ne8 Bf6 Bb3 d8B Nef3 Rd5 Nd2 Nce5 Nc4 Qh4 Nf3 Rf5 Ng5 Qh6 f3+ Kf2 Bd1 Kf1 f2 Rb5 Bb3+ Ke2 Rg8 h8R f1B+ Kf2 Bh3 Ke2 Qd7 Rh7 Rg7 Nh8 Re7 Qg7 Qdc7 Rh5 Qa1 Qh6 Rh7 Rc8 Qc3 b8B Qb7 Rc6 Qa5 Rcb6 Rd7 Ra6 Bb4 Rd2 Bbc5 Rad6 Rh1 Rb2 Qb4 Rc6 Rdd1 Rd6 Rb1 Rd5 Qe1+
1R1R1n1n/k3b1q1/q1RP4/1b1rN2p/Q2KR2b/2R3R1/1B4n1/r2QNqnB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 Kc7 d4 Kb7 b6 f5 b5 h5 d6 c4 d7 f3 Ke3 f2 e5 c3 g5 h3 d5 a4 g6 h2 e6 a3 d6 c2 e7 f4+ Kd4 a2 e8Q f3 g7 Nh6 g8R Qf6+ Kd3 Nf7 d8R Be7 Ke3 Nd7 Bd2 c1N Bg2 f1Q Na3 Qg7 Bc3 Nf8 Nc2 Bd7 Ne1 Ne2 Rc1 a1B Bb2 Ra2 Rc6 f2 Ngf3 Ng1 Ne5 Rh7 Bf3 Nh8 Bg2 Qe2+ Kd4 f1N Bf3 Ne3 Bd5 Ng2 Rdc8 Qf7 Rg3 Qg7 Rd8 Ra8 Be4 Rc8 Rcc3+ Kb8 b7 Ka7 b8R Rc5 Rbc8 Bh4 Rc6 Be7 Ba3 Qa2 Bb2 Qa6 Ba3 Bb2 Bd5 Bc1 Bb2 Bcg5 Bf3 Bh4 Be4 Nh3 Rg1 h1Q b6+ Kb7 Rf1 Ng1 Rf4 Qh3 Bd5 Qf5 Re4 Qf3 Qg6 Qff1 Qgg4 Be8 Qa4 Bd7 Qgd1 Be8 Rd7+ Kb8 b7 Ka7 Rd8 Bd7 Rb6 Bb5 b8R Rh6 Rh3 Rf6 Rc6 Rf2 Rhd3 Rc2 Rg3 Rc1 Ree3 Ra1 Be4 Nf4 Bh1 Ng2 Re4 Rd5+
q2BKR1Q/3RNb1b/2P3q1/1RbN3B/r3k3/1R2p2q/Nr2b2r/1N2nnN1 w - - 0 1 illegal: No possible last move, all moves rejected
Q2RN1n1/rR2NR1p/rr1q2bK/q2R2r1/2n5/3N1N2/bRb4P/2q2BBk w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 c4 Kf7 b4 Kf6 e4 a5 f5 Kg5 b6 Kf4 b5 g5 b7 d5 c5 a4 f6 d3 b6 g4 c6 g3 c7 a3 e5 d4 f7 g2 f8R+ Bf5 c8N a2 e6 Nf6 e7 Ra7 e8R Nc6 b8R Bg6 b7 Qa5+ Nc3 Ne5 Rb1 a1R Rb2 Kg4 Qa4 Nc4+ Kd1 d2 Rd8 Ra2 Ne4 Ra6 Kc2 d1B+ Kd3 Rg8 Be3 Ra7 Ne2 Kh3 Rf7 Re8 Qa3 Re6 Ne7 Rb6 Nc1 Ra1 Qa4 Bb3 Rd5 Ba2 Rbd8 Raa6 b8N Ra7 Be2 g1R Na6 Kg2 Nc7 f1Q Ne8 f2 Qc6 Qfe1 Qa8 f1Q Bf2 Qeb4 Be3 Bh5 Nd2 Qd6 Nf3 Raa6 Nb3 Qc1 Nc5 Nd7 Ke4 d3 Kf5 d2 Kg5 d1B Nd3 Bg6 Kh6 Nf6 Qb7 Bc2 Qa8 Re1 Rf1 Rd1 Rf2+ Kh1 Bf1 Ra7 Rg2 Rd2 Rg4 Rg2 Re4 Rg5 Bg1 Rba6 Rb7 Rb1 Re2 Rbb6 Rf2 Bd1 Rb2 Ba4 Nb4 Bac2 Nd3 Ng8+
3q2r1/1b1q1QP1/BRN2n2/Q4Nq1/Rp3q2/N2b1NnK/Nkr4B/rN2b3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 Kd6 Kf2 Kc5 g4 Kd4 Kg2 c5 f6 h5 d6 b5 f7 e5 d7 e4 g5 b3 g6 e3 g7 c4 f5 c3 a5 e2 f6 e1R a6 c2 a7 b2 Ra4+ Bb4 f8N Re4 f7 Nc6 Kh3 Nce7 Qe1 Nf6 Ng6 Re2 f8Q Bb7 Qf7 Nf5 Ne7 Rg8 Nf3+ Kd3 Rg1 Ng3 Nf5 Ba5 Qf2 Bb4 Qb6 Bc3 Qa5 Bb4 Na3 b1B Bb2 c1Q Be5 Qc5 Bf4 Bc2 Nb1 Qd5 Bb8 Kc4 d4 Kb3 Rg2 Bd3 Rf2 Qc4 d5 Be1 d6 Rc2 Re2 Kb2 Re6 Qf4 Be2 Qe8 d8N Qd7 Nc6 Qd8 d7 b4 Nce7 Qg5 Nd5 Qf4 Ndc3 Qg5 Kh2 h3 Na2 h4 Rb6 Qf4 Kg1 h2+ Kg2 Qg5 Kh3 h1Q+ Nh2 Qc8 d8N Qhc6 Nf3 Q6d7 Nc6 Qcd8 Bd6 Rb8 a8N Rc8 Kh2 h3 Nc7 Ra8 Nb5 Ra6 N5a3 Qf4 Kg1 h2+ Kg2 Ra8 Kh3 h1Q+ Nh2 Qd5 Nf3 Be4 Ba6 Bd3 Bc5 Qde5 Be3 Qg5 Bg1 Qef4 Bh2 Rc1 Nbc3 Ra1 Ncb1 Rc8 Ne7 Rc5 Nc6 Rc2
3k1N1n/5PB1/2KrB2N/R1Nn2b1/1p4r1/B1bnqqnq/N1b1B3/R2B3Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Kf3 c5 Ke4 b5 d4 h5 g4 b3 f4 b4 a4 c4 d6 h3 Kd5 c3 f6 h2 g5 h4 f7+ Kd7 a5 e4 a6 h3 f5 b2 g6 e3 a7 c2 g7 e2 f6 e1Q Nc3 b1N Na4 Qe3 Be2 Nh6 g8B Bg7 Ba3 Qf8 Nc5+ Kd8 d7 Na6 Kc6 c1B d5 Rh7 Qe1 Rb8 a8B Nc3 Bd1 Bd2 Ne2 Rb5 Rg1 h1N Rg5 h2 Nc1 Ng3 Na2 h1Q Rf5 Qh3 Qh1 Bh8 Be2 Rg7 Bb7 Rg4 Rg5 Qg7 f8N Qf7 Re5 Qfh5 Be6 Nf7 Rg5 Bg7 Bd1 Nh8 Rf5 Nc7 Ba6 Rb7 Bae2 Na4 f7 Re4 Nd3 Qeg5 Nf2 Qf3 Ng4 Nc5 Nh6 Ke7 d8N Bgc3 Bd7 Rg4 Nde6 Ra7 Re5 Ba6 Bc8 Bd3 Bd7 Bc2 Bc8 Nge4 Bd7 Nd3 d6+ Kf6 Rb5 Nd5 Nc5 Ng3 Be6 Qe5 d7 Ke7 Ra5 Bg5 Nb3 Qee3 Nc5 Kf6 d8B+ Re7 Bc7 Rd7 Be5+ Ke7 Bd4 Kd8 Bg7 Rd6+
b1R4N/R1Pr4/4p1QK/q1bnb2B/n2NRB1q/rBB3nb/3q2k1/2R2R2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 b4 d5 c4 a4 f4 h6 b6 a3 f6 h3 f5 a2 b7 d3 b5 h2 c5 d4 b6 d2 c6 d3 c7 Nd7 b8R Kf4 f7 Kg3 b7 Ra3 g5 Ra5 f6 Nb6 Qg4+ Kf2 Nc3 d1B Be2 d2 Nf3 Ra3 g6 Na4 g7 Rh7 Qg6 Qd5+ Ne5 Bh3 Rc8 Qa5 b8R Bc2 Rb5 d1Q Bf4 Be4 Rb4 Qd2 Nb5 Ba8 Rhc1 h1Q Re4 Qhe1 Bg4 Kg2 Nd4 Qg3 Bd1 e6 Bb3 Bd6 f8R Bc5 Nf7 Ne7 g8B Nd5 Nh8 Re7 f7 Rd7 Rab1 a1B Rfd8 Qe1 f8B Qed2 Bf7 Bb2 Bg7 Bc3 Qh7 Qh4+ Kg6 h5 Kh6 Bb2 Rf1 Ba1 Rbc1 Bc3 Nf5 Bf6 Nd4 Be5 Qg6+ Qg3 Bg8 h4 Qg4 Bed6 Nb5 Bc6 Bc3 Be5 Rb8 Ba8 Qh5 Qgf2 Rb7 Bf5 Rc8 h3 Ra7 Qh4 Nd4 Bg4 Bf7 h2 Rfe1 h1N Rf1 Ng3 Bg6 Qe7 Qg5 Qd8 Bh5 Bh3 Qg6 Qh4
Q3K3/p1r4P/1n1N4/bq1BBB1n/rR1RRB2/3qq3/n1RrkrbN/6R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 h4 Kf6 b4 Ke5 e4 Kd4 e5 f5 e6 g5 b6 c5 d6 g3+ Kf3 g2 d7 c4 h5 c3 b7 c2 b5 Rh7 e7 Rf7 e8B Re7 b6 Re5 h6 Bc5 h7 Rd5 Ra2 Bf8 Bc4 Nf6 Bg6 Nh5 Nc3 Bb4 Ne4 Ba5 Nd6 Qe8 d8R Nd7 b8B Bb7 Bb3 Kd3 Bb2 c1N Be5 Rd4+ Bd5 Ra4 Rc2 Na2 Qb1 Bc6 b7 Nb6 Qe1 Qd7 Re8 Qd8 Bc7 Rc8 b8R Ba8 Re6 Qe8 Qf2 Qb5 Qc5 Rd8 Qc6 Bb7 Qe8 Bc6 Rb7 Rd7 Qa8 g4+ Kf2 Rf7 Nf3 g1R Nh2 g3+ Kf3 Rd1 Rg1 g2 Bb8 Rc7 Re7 Nc8 Rb6 Qc5 Rb4 Nb6 Bc3 Qc4 Re4 Qb5 Be5 Bb7 Kf2 f3 Bf4 Ng7 Kg3 f2 Kh4 f1R Kg5 Rf2 Kf6 Nh5+ Ke6 Bc6 Be5 f4 Bf5 f3 Bf4 Nd7 Kf7 Nb6+ Kf8 Re2 Be5 f2 Bf4 f1Q Be5 Rd7 Ke8 Rf2 Bc7 Qe2 Bb8 Qe3 Bc7 Ke2 d4+ Rd2 Nc8 Qc4 Bg8 Bb5 Bf4 Qc5 d5 Kd3 d6 Qc3 Rd1 Rg7+ d7 g1Q Rb3 Bc4 Bce5 Qf1 Rb4 Qcd4 d8R Rc7 Rd7 Qfe2 Rg1 Be6 Bg6 Bh3 Bf5 Bg2 Rd5 Qf1 Nd6 Qfe2 Rdc5 Qc4 Bd5 Qb5+ Rc6 Qf1 Rcc4 Qb1 Rcd4+ Ke2 Rbc4 Rd7 Rb4 Q1d3 Rc2 Rc7+
bb1NkNQ1/1B2B3/2R2q2/n1Q1P1nb/r3B3/p7/1r1rr1BK/1BrR1Br1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 fxe5 cxd4 Kf2 f5 Kg3 d5 b4 a5 c4 h5 e4 a3 g6 a4 c5 f4+ Kh2 d3 g4 f3 b5 a2 g7 a3 e6 d4 c6 h4 e5 d2 c7 d3 b6 h3 g5 f2 e7 Ra6 g6 Bd7 c8B Bf5 b7 Rh5 Ne2 Qd7 Nbc3 Qd4 Nd5 Nh6 g8B Be4 g7 Nc6 b8Q Qb6 Bh7 Na5 g8B Qf6 Qc2 d1R Ndf4 d2 Nd4 Ba8 Nde6 Nf7 Be4 Ng5 Nd8 Rh7 Bfg2 f1R Bc4 Rfe1 Ng6 Re2 Bcb7 Rg7 Rb1 a1R Rb6 Rb1 Rc6 Rb2 Ba2 Rg1 Bb1 d1B Qc5 Red2 Qc8 Bh5 Qe6 Re2 Qg8 Rd1 Bf4 Rdd2 Rd1 Ra7 Bg3 Ra6 Bh4 Ra7 Kg3 h2 Bf1 h1R Beg2 Rg1 Kh2 Nh7 Nf4 Rg4 Nfe6 Rc4 Be4 Ng5 Bb1 Rd6 Be4 Rc1 Bb1 Kd7 e8B+ Ke7 Beg6 Ra6 Qa7 Rdd2 Bge4 Ke8 Qc5 Ra7 Qh7 Bd6 Nf8 Bb8 Qg8 Nc4 Qgd5 Ra4 Qg8 Nh3 Bg5 Na5 Bh4 Qe6 Bf6 Ng5 Be7 Qf6
1B3bB1/r4B2/1R2RnR1/Nb1P4/n4B2/r2npbbK/3b1BRN/q1k2b1Q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 f4 e5 Kf2 h5 Kg2 a5 b4 c5 d6 c4 f5 e3 b6 Kg5 f6 Kf4 g5 c3 b5 h3+ Kh2 h4 d7 e4 d5 c2 g6 a4 b7 a3 g7 a2 b6 Na6 b8R Ra7 f7 Nc5 b7 Nf6 g8B Qa5 d8B Na4 Bb2 c1B Nd2 e2 Bg2 Ke3 Ngf3 e1N Be5 Bd7 Nb3 Bb5 Rg1 Bd2 Bf4+ Kd3 Rc1 a1B Rc2 Be5 Bb6 Bc7 Bf2 e3 Qc1 Ke2 Bh1 Nd3 Rg6 Qc3 Ra2 Qa1 Na5 Be5 Qg1 Bed6 Qg2 Kd1 Re8 Rh7 b8B Kc1 Re6 Ra6 Ne5 Ra8 Ng4 Ra7 Qe4 Be5 Bf3 Bed6 Kg1 h2+ Kg2 h1B+ Kh3 Rh8 Be2 Bf3 Nh2 Be5 Bd1 Be2 Qh1 Bf1+ Rg2 Rh7 Rb2 Rg7 Bh5 Bed6 Bh6 Bg3 Rb3 Rg4 Bg5 Rc4 Bgf4 Rc3 Rb2 Ra3 Bg6 Bd6 f8R B6b4 Rf7 Bf8 Rg7 Ne8 Kg4 h3 B6f7 Nf6+ Kg5 Ba6 Rg6 Bc4 Rbb6 Bb5 Nf3 h2 Kf5 Nd7 Kg4 Nf6+ Kh3 Qc3 Qg1 h1B Nh2 Qa1 Rbc6+ Kb2 Rb6 Be2 Qe1 Kc2 Rg1 Bhf3 Rg2 Kb2 Qg1 Bf1 Qh1 Kc1
B6n/kNRNbr2/1N2P3/4NB1n/1B2qb2/B1B1p1rR/2bb2b1/Knb2Q2 w - - 0 1 illegal: No proof kernel
1kbrn3/pP4B1/1rQ2Q2/Kn2NR2/7R/q1b5/b1QbQ2b/Q2BbNQr w - - 0 1 illegal: No possible last move
8/3n1b1k/3bQR2/1Rb1RnqB/2Q1NBrP/1Rr4p/n1K1N1R1/3R1nnb w - - 0 1 illegal: No proof kernel
2R3Bk/N4bbr/Qn1NN3/b1NrR3/q1P1n3/2BK4/B1N2brp/Brb5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Kg7 f4 a5 b4 d5 f5 h5 f6+ Kh7 f7 e5 b6 h4 b5 d3 b7 a4 b6 d4 Nf3 a3 Qe2 a2 Bb2 h3 Nc3 h2 Nb5 Bg7 Bc3 Qd7 Ne1 Nf6 Rc1 a1B Na7 Qa4 f8N+ Kg8 g6 Rh7 g5 Nbd7 b8N Kh8 b7 Nb6 Rg1 Be6 Na6 Bf7 Ne6 Rg8 b8B Bb2 Nac5 e3+ Kd1 d2 Qa6 e4 Ke2 d1R Be5 Ba3 Ba1 Rd3 c3 Rd1 Nc2 Rd3 Bg2 Rd1 Re1 d3+ Kf1 e2+ Kf2 d2 Ke3 Nc4+ Kd4 e3 Bd5 Ne4 Kd3 Nb6 Ba2 Ra8 c4 Re8 Bec3 Rg8 Rb1 Bc1 Rb5 Bd4 Rf1 e1B Rf6 Be8 Rf8 Bf7 Rc8 e2 Ra5 Bg3 Rb5 Rg1 Ra5 e1B Rb5 Rd8 g7+ Kg8 Ra5 Rg2 Rb5 Bge5 Ra5 Rh6 Rb5 Kh7 g8N Bg7 g6+ Kh8 Nf6 Rh7 Ne8 Rd5 Ra5 Bh4 Nd6+ Bd8 Rb5 d1R+ Bd2 Rf1 Bdc3 Bd2 Ra5 Rb1 Rb5 Bc1 Ra5 Bge5 g7+ Kg8 Rc6 Bdg5 Nb3 Rc5 Be1 Bgd2 Rb5 Ba5 Bec3 Bf6 Rc7 Rch5 Rg5 Bfe5 Nbc5 Bf6 Rg4 Rd5 Rg5 Rh5 Rc6 Kh7 g8B+ Kh8 Rf5 Bg7 Re5 Rh7 Rc8 Bf2+
bn1B2qb/N2Br3/1q1BK2P/p6r/r5rQ/NBB2N2/NRn3R1/r2r1k2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 e5+ Kd7 h5 c4 b6 c3 b5 g3+ Kf3 g2 b7 c2 d6 Ke6 d7 Kd5 b6 Nf6 e6 Bg7 e7 Qg8 e8B Ng4 d8B Ne3 Bd2 c1R Qe1 Nc2 Ra2 Rd1 Bc3 a6 Rh2 g4+ Ke2 Kc4 d5 g3 d6 Rh7 d7 Bh8 Nf3 g1Q Rb2 g2 Qh4 Qc5 Be7 g1R d8B Rg4 Bd6 Be6 Bh3 Bd5 Bd7 Qc6 Kf2 Kd3 Rg2 Rf7 h6 Qc7 Nh2 f3 Na3 f4 Ba4 Ra7 Bb3 Rf5 Bd4 Rh5 Bc3 Nd7 b8N Ba8 Nc6 Nb8 b7 Qb6+ Bd4 Ra1 Nb4+ Kd2 Na2 Kd1 Kg1 f2+ Kh1 Ke1 Nf3+ Kf1 Kh2 a5 B4f6 Rd1 Bc3 Rd4 B8e7 Ra4 Bd8 Rg6 Bd7 Rg4 Ng1 f3 Kh3 Na6 b8N Rc7 Bde6 Rf7 Nc6 Nb8 Bd7 Rgg5 Ncb4 Nd4 Rd2 Ke1 Rg3 f1R Rgg2+ f2 Nc6 Rg6 Na7 Rgg5 Kh2 Rg4 Rc2+ Kd1 Rb2+ Nc2 Nf3 Ke2 Ne5 Ra1 Nf3 Rgd4 Kh3 Rdb4 Rg5 f1R Rg7 Rfd1 Rg1 Qf8 Rg2+ Kf1 Kg3 Bd4 Kg4 Qg8+ Ng5 Bf6+ Kf5 Bh8+ Ke6 Rg4 Nf3 Re7+
2rNR3/K2n4/Pb1QB1k1/NB4b1/2Rq2b1/4rnrB/p3B2B/rb1r1NN1 w - - 0 1 illegal: No possible last move, all moves rejected
2B1nr2/bBqN1bp1/b2Nk2b/1P2B1Q1/2RB3q/2N4r/1K1N2B1/2Rnbb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 b4 a5 c4 d5 Kc2 f5 e4 g3 h4 a4 c5 a3 b6 a2 b5 d3+ Kb2 g2 h5 d2 e6 d4 e5 f4 c6 d3 b7 f3 c7 f2 h6 Nf6 h7 Ne4 Qh5 d1Q Ne2 g1B Bg2 f1B Nd2 Be3 Rh4 Nc3 Rc4 Nd7 b8B Bh6 Qg5+ Nf6 Ba7 Qa4 Bd4 Bb7 c8B Ba6 Bgb7 Qc7 Rb1 Ke8 e7 Kf7 e8N Bc5 e6+ Ke7 Nd6 Ba7 Be5 Rf8 h8N Nd1+ Ka1 Rb8 Nhf7 Rh8 Nc3 Rf8 Qg3 Ne8 Bb2 Ra8 Rc1 Qb4 Rc5 Qh4 Rc4 Rb8 Bd4 Ra8 Ne5 Kf6 Ndf3 d2 e7 Rb8 Nd7+ Ke6 Ng1 Rf3 Qg5 Rh3 Nf3 Nf2 Rc2 d1B Nd2 Bh5 Rc1 Nd1 Bg2 Bf7 Bcb7 Nf6 Be5 Rf8 e8B Bg8 Bh5 Ne8 Bc8 Bf7 Bhf3 Qb8 Bfb7 Qc7 Ba3 Nf2 Kb2 a1B+ Ka2 Bb2 Bc5 Nd1 Bb6 Ba3 Ka1 Bc5 Kb1 Bf2 Bbd4 Be1 Kc2 Nf2 Kb2 Nd1+
7b/RPKb4/Rp2B2Q/NRr3nR/3b1R2/r1Nr1nq1/1r1rb1k1/2BQ3R w - - 0 1 illegal: No proof kernel
r5N1/PQ4K1/2r1qbQB/1b2N2N/1npkNn2/1B1NnR2/N1b3n1/Rb2b3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 h5 Kg6 b5 d4+ Kd6 a4 e5 f4 c5 g4 e4 f6 e3 f7 b3 f5 b2 f6 e2 g5 e1B a5 b4 a6 h3 a7 h2 Qc2 h4 Nf3 h3 Nbd2 b1B Ne5 b3 Ne4+ Kc7 d6+ Kb6 d7 b2 d5 Nh6 d6 Nf5 Nd3 Be7 f8Q Ne3 f7 Rh4 Qg7 Qe8 d8N Nc6 d7 Ba6 Ne6 Bb5 d8N Nb4 Nc6 Bf6 Nef4 Qe6 f8N Ng2 Nh5 c4 Be2 Rg4 Rf1 h1N Bd1 h2 Rf3 Nf2 Kh7 h1B g6 Nh3 Bh6 Nhf4 Qe7 Rg3 g7 Rg5 g8N Rc5 Qa4 Bc2 Ng6 b1N Nge5 Nc3 Qd7 Bb1 Bb3 Ncd5 Qf7 Bc2 Qg6 Nde3 Qa3 Bb1 Qb2 Bc2 Nb8 Rc6 Na6 Nbd5 Nab4 Bb1 Na2 Nb4 Ng5 Bc2 Nf2 Kc5 Nfd3+ Kd5 Ne4 Bb1 Qa3 Kd4 Qa6 Nh4 Qc8 Bg2 Qb7 Bf1 Qa6 Nhg2 Qb7 Be2 Ndc5 Bd1 Ncd3 Be7 Kh8 Bdc2 Kg7 Bf6+
3NqNRr/nb1Q4/1RrnRb1N/1Bnb2N1/3B1P2/5bpr/2rR2N1/1K5k w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 f4 g5 b4 a5 c5 d5 h5 e5 c6 a4 b6 g3 h6 g2 f6 a3 h7 a2 c7 d3+ Kb2 g4 b5 d2 b7 g3 b6 d4 f7 d3 Nh3 g1R Qg4 d1B Qh4 Kf3 Be2+ Kg2 Qg5 e4 Qe7 e3 Qd7 d2 Bb5 e2 Ng5 e1R Rh6 Re6 Nc3 Qe8 Nd5 Be7 f8N Rc6 Re6 Bb3 Ne3+ Kh1 Ng2 d1B Be3 Bf6+ Bd4 Bf3 Rd1 Nh6 Rd2 Bc4 Kc2 a1N+ Kb2 Nb3 Kc2 Rg8 h8N Nf5 Nhf7 Rh8 Nh6 Rc1+ Kb2 Rc2+ Kb1 Na6 b8N Nbc5 b7 Nb4 Ne4 Nd6 Ng5 Rca6 Nc6 Bcd5 b8R Bb7 Nd8 Nc6 c8R Na7 Qc7 Rc6 Qd7 Ba6 Rb6 Bb7 Ng8 Rh2 Nh6 Rh3 Ng6 Rh4 Ndf7 Qg8 Rf8 Re8 Nd8 Qf7 Rh8 Rg8 Nf8 Qe8 Qc8 Rh3 Qd7 Rg7 Rg8 Rh7 Re7 Rh8 Re4 Qe7 Re6 Qe8
krR1N2n/2n2Br1/K2n1r2/1NP4R/B2R2p1/4Q2b/1q1B1B1r/1Bbn2Rb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 a5 Kd3 g5 Kc4 f5 e4 d3 b4 d2 h4 a4 b6 d5+ Kb5 Kd7 c4 d4 e6+ Kd6 h5 f4 e7 d3 e8B a3 h6 a2 b7 Kc7 c5 f3 h7 f2 e5 g3 e6 g4 e7 g2 Ne2 g1R Rh5 Nh6 Nbc3 Nf7 Ne4 Na6 b8R Qd4 N2c3 Bb7 Qe2 d1N Nf6 d2 Qe3 Nb2 Rd8 d1N Bd3 f1B Bd2 Bh3 Bb1 Rf1 Bd7 Rf5 e8B Rb8 Bc6 Qe5 Rd4 Bh6 Bd5 Rg8 h8R Rg7 Rf8 Nh8 Bdf7 Rf2 Bc6 Nc4 Ne8+ Kc8 Rg8 Nd6+ Kb6 Bg5 Ba4 Rf1 b5 Nc7 Ka7 Rf5 b6 Bh1 Nb5 Rf6 b7+ Kd7 Bh7 Kc6 Rc1 a1R Bb1 Ra2 Rf8 Nb2 Rg1 Nd1 Rg8 Rd8 b8B Bh6 Be1 Rh2 Bf2 Rc8 Qa3 Bc1 Qe3 Ne6 Bc7 Rb8 Ba5 Nc7 Bb4 Ne6 Ka6 Nc7+ Ka5 Kb7 Bd2 Ka8 Rf8 Ne6 Ka6 Rf4 Rd3 Qb2 Rd4 Rf5 Nf6 Rf3 Rc8 Rf4 Ne8 Rf5 Qg5 Rf6 Qe3 Nc7+
B4n2/1rq1K3/1p5R/nN1r2k1/BRbPB3/Qr2b1Nr/N1N2nbB/1n3N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 c5 g4 h5 a4 e5 f4 h3 d6 b3 Kd5 e4 d7 c4 g5+ Kg7 Ke6 c3 a5 h2 a6 c2 f6+ Kg6 a7 h4 f5+ Kh7 f7 b6 f6 Kg6 Ne2 e3 Ra4 h3 Rb4 b2 Bg2 Kh5 g6 Rh7 g7 Qc7 Be4 Nc6 Ng3+ Kg5 Qf3 e2 Qa3 Bb7 d8N Bd6 f8N e1N f7 Nf6 g8B Na5 Nc6 Rd8 a8B Ba6 d3+ Bf4 Nd2 b1N Ndf1 Nd7 Ke7 Bc4 Ne6+ Kh6 Ned4 Kg5 Nb5 Be3 Bb2 c1R Be5 Rc3 Bd6 Rb3 Be5 Rh5 f8N Rb8 Bgh7 Rb7 Ne6+ Kg4 Bd6 Rd5 Ned4 Kh4 Nc2 Kg5 d4 Nd3 Bhg6 Nf2 Bf7 Rb8 Be8 Rb7 Rg1 h1R Rg2 Bd3 Rh2 Bc4 Ne2 Rc5 Nbc3 Bb5 Na2 Nf6+ Bd7 Bc4 Na7 Re5+ Kf8 Rd5 Ba4 Nd7+ Kf7 Rg1 Ke8 Rg3 Ke7 Rf3 Rh1 h2 Nb5 Rg3 Rg1 h1B Be5 Bg2 Rh1 Nc3 Rh6 Rh3 Bh2 Nb1 Neg3 Nf8+
2R4r/Q3R1B1/1B1R2Rn/3K1N1B/q4b1r/k1Ppbnnb/BN2B3/bq5n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 h4 d5 e4 f5 b4 a5 e6 Kd6 h5 g5 b6 f4 c3 a4 e7 g3+ Kf3 d3 e8B d2 b5 Kc5 h6 g2 b7 d4 h7 a3 b6 d3 e5 g4+ Ke4 a2 e6 f3 e7 g3 Na3 f2 Bf7 Qc7 e8B Na6 b8R Bh3 b7 Bd6 Qa4 d1Q Nc4 Qd7 Nb2 Bf4 Rd8 Nh6 Be2 f1N Nf3 g1N b8R g2 Nd4 Nf3 Nf5 g1B Rbc8+ Qc6+ Bd5 Bge3 Bh5 Rb8 Qa3+ Kb5 Rd6 Qc2 Rh2 Qb1 Rg2 Qd7 Bdf7 Nc5+ Kd5 Ne4 Qa7 Nf2 Rg6 Nh1 Bg8 Nfg3 Be6 Rf8 h8B Rb7 Bg7 Rh8 Bd2 Rc7 Be1 Rc4 Bf2 Re4 Qd4 Ka5 Bg1 Qa4 Qa7+ Kb5 Bf2 Qc1 Rb1 a1B Bg1 Qcc2 Re1 Qb1 Bf2 Bc1 Bfd4 Bfe3 Bg8 Rh4 Bb6 Bf4 Bf1 Bcd2 Re7 Bde3 Be2 Qa6 Nc4 Ka4 Nb2+ Ka3 Kc6 Nf1 Ba2 Qa4+ Kd5 Nfg3
4B1N1/2rr1N2/b1QKQ3/1B1PB3/2rbp1Br/3n1B2/1B1q1RqR/n2bkb2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 d4+ e3 a4 b5 g4 h5 d6 e5 f3 Kg3 f4 Kf2 a5 b3 a6 h4 g6 h3 a7 b4 g5 b2 g7 h2 g6 e2 f5 e1R f6 b3 f7 Nc6 Ra6 Nge7 g8B Nd5 g7 Ncb4 Nf3 Nf4 Nbd2 b1B Bb5 b2 Ng5 Bc2 Ra2 b1B Bb2 Rh4 Qg4 Ba6 Qe6 Rc8 a8B Bd1 Bf3 Bd3 d5 Bf1 Bh7 Nc2 g8B Bg7 f8B Na1 Nf7 Qg5 d7 Nd3+ Kc6 Re3 d8Q Ke1 Bd6 Qh6 Kd7 c5 Bg6 c4 Qc7 c3 Ne4 c2 Qc6 c1R Nf6 Rcc4 Bc7 Re2 Kd6 Qd2 B8h7 Bh8 Ng8 Bf6 Bb8 Rc7 Bgh5 Bh8 Bf5 Bg7 Bf5g4 Bf6 Rg1 h1Q Rg2 Re3 Rf2 Qg2 Nfh6 e4 Be8 Bd4 Nf7 Rh7 Be2 Reh3 Bef3 R3h4 Ba7 Bc3 Bd4 Rg7 Be5 Bd4 Nfh6 Rge7 Nf7 Qg1 Rh2 Qgg2 Bc1 Qa5 Rf2 Qd2 Bb2 Red7+
b4q2/k1n1rBr1/nR1Bb3/pbR2N1B/3n1K1b/1QQ1B2B/4qnP1/1N4B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 Kf3 a5 e4 f5 c4 d5 b4 Kd7 g6 Kc7 c5 Kb7 b6 h4 b5 h3 e5 h2 g7 d3 e6 d4 e7 d2 e8Q d3 Qc2 d1Q+ Qce2 d2 Ra4 Na6 Rc4 Rh7 Qf7+ Ne7 g8B Be6 c6+ Kb8 b7 Ra7 Qf6 Rg7 Bf7 Nd5 Rc5 Ndc7 Qc3 Be7 Bh5 Qe1 Qed3 d1B+ Ne2 Qf8 Be3 Bh4 Rg1 Bdb3 Ng3 h1N Be2 Re7 Bf7 Nf2 Qd1 Bbc4 Qdb3 Qd2 Rc1 Qc2 Bd1 Qb2 Rc2 Qa2 Rb2 Bcd5+ Ke2 f3+ Kd2 f4 Nf5 Ne4+ Kd3 f2 Bdh5 f1B+ Kd4 f3 Ke5 Ra8 Kf4 Ka7 Bg1 Rd8 Be3 f2 b8B+ Ka8 b6 Bb5 Ba7 f1N Bg1 Rdd7 Be3 Nfg3 Bg1 Ne8 c7 Nf2 c8B Nec7 Bb8 Ne8 Bd6 Nec7 b7+ Ka7 b8B+ Ka8 Ng7 Nf5 Ba7 Nd4 Nf5 Bb7 Qa3 Qc4 Rb4 Qe2 Qab3 Ba4 Rb6 Bb5 Be8 Rg7 Bef7 Re7 Nh6 Bec4 Bh3 Be6 Nf5 Qb8 Rd5 Nc2 Rc6 Qf8 Be3 Nd4 Rb6 Ka7 Rc5 Ba8
1b1N1Rb1/1NB1NBb1/2Pr2R1/Q1B3b1/3np1q1/B7/2BNq1rk/1K1n1nn1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 a5 c4 d5 Kc2 h5 b4 h4 f5+ Ke5 b6 h3 b7 h2 f6 d3+ Kb2 e3 f7 Kf4 b5 Kg3 b6 e5 g6 d2 g5 a4 c5 d4 g7 a3+ Kc2 d3+ Kc3 e4 g6 a2 Kb2 e2 c6 e1B Qa4 d1Q Nf3 d2 Bd3 Nh6 g8N Bg7+ Nd4 Qh4 f8B Be6 Qa5 Nd7 b8N Qhg4 b7 Nf5 Ne7 Bg8 Na6 Rh6 b8B+ Ne5 Ne6 Nd4 Bc7 Qde2 Rf1 h1N Bc2 Kh2 Nd8 Bg3 Nc5 Nef3 Ncb7 Ng1 Rf7 Bf6 g7 Bg5 Rf3 Rd6 Rf5 Be6 g8B B3f4 Bf7 Ng3 Rf6 Nf1 Rg6 Ra6 Na3 Be5 Nc4 Bg7 Rb1 a1B+ Ka2 d1N Ba3 Bc3 Rb4 Be1 Kb1 Bg3 Nd2 B3f4 Rb5 Ra8 Rf5 Bd5 Be8 Bg8 Bf7 Ra6 Qc3 Ra4 Qa5 Bfe5 Bc5 Ra2 Ba3 Nh3 Bc4 Rf6 Nc8 Nhf2 Bfc5 Bd5 Nb3 Qd2 Bb8 Bg8 B2d3 Qe3 Ne7 Nh3 Bd5 Re6 Rf8 Rg2 Nd2 Ng1 Bc2 Qee2 Bc4 Bc7 B4b3 Rd6 Bf7 Bb6 Bc7 Ba7 Qb4 Bb8 Qc3 B5f6 Qa5 Bg5
q5RB/rn2Q2p/1q1n4/Q4NQP/1N3Qq1/B1Qn1rb1/q1RQ2bk/3K1n2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 g5 e3 g4 Be2 Be7 Bf3 gxf3 Qc2 Bd6 Qd1 Bf8 b4 Kd7 h4 Kd6 g4 Ke5 d4+ Ke4 h5 a5 d6 f5 d5 c5 b6 c4 g5 a4 d7 c3 d6 c2 g6 a3 b7 a2 g7 Na6 b8B Qf6 d8Q Be6 d7 Nc5 b5 Ne7 g8Q Nc8 b6 Bd5 b7 Qb6 Qg7 Bd6 Na3 Rf8 Ne2 f2+ Kd2 Kf3 e4 f1Q e5 Qf2 e6 Qh4 Ng3+ Kg2 e7 f3 e8Q f4 Qc7 Qd8 Rg1+ Kh2 Qee7 f2 Ke2 Qe8 Qd2 Ra7 Qa5 Bc6 d8Q f3+ Kd2 Rf4 Nf5 f1Q Qh6 f2 Rg8 Qf8 Qhg5 Qh3 Ke2 Be5 Qdd2 f1N Bb2 c1N+ Kd1+ Rf2 Nc2 N1d3 Ba3 Bg3 Nb4 Bg2 Rc1 Rf3 Rc2 Qg4 Qce5 Qfd8 Qec3 Qe8 Be5 Nd6 Bh8 a1Q+ Rc1 Qa2 Rc2 Qa8 b8Q Nb5 Qbc7 Nb7 Qcf4 N5d6
3N1r2/1nN3Pp/rRb4K/2N3n1/bbR2N2/nNqQB2R/Bk1bnq1R/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 Ke5 e4 Kd4 g4 c5 g5 f5 e5 a5 d6 a4 d7 a3 b6 h3 b5 a2 g6 c4 b7 h2 b6 c3 g7 c2 e6 Nf6 e7 Qc7 d8R+ Nbd7 e8N Ne4 b8N Ra6 b7 Bb4 Bc4 Rf8 Nh3 Qe5 Bd5 Ndc5 Nc7 Bd7 Rc8 Ba4 Nd7 Qf6 b8R Nb7 Nc5 Ng5+ Kg2 f3+ Kg3 f2 Kh4 f1Q Kh5 Qc4 Nf4 Qc3 d3 Qb6 Nd2 Qf6 Rb1 a1N Ba2 Qb6 Rb2 Qf6 Ng6 f4 Kh6 f3 Qf1 f2 Qh3 Nd6 Rb6 f1N Qf5 Qf7 Nf4 Ng3 Qg6 Ne2 Ndb3+ Ke5 Be3 c1B Rc2 Bd2 Rb2 Nc2 Qe4+ Kf6 d4 Na3 Qf3 Kf5 d5 Nb7 d6 Ke5 d7 Qf5 d8N Qfc2 Rg1 h1B Rg3 Bg2 Qf1 Bgc6 Rh3 Qf5 Qb1 Qf7 Qd3 Qf5 Nh5 Qf2 Nf4 Bf3 Rb1 Nd6 Ne8 Qc4 Rbh1 Nb7 Nce6 Qc2 Rc4 Bfc6 R1h2 Qb2 Qd7 Qd4 N8c7 Ke4 Nfd5 Kd3 Qd6 Qc3 Nec5+ Kc2 Nf4 Kb2 Qd4 Nf3 Qd3 Ng5
rB6/2NR3B/1R4rR/2KQp2b/3bP1k1/1qbqBR1R/4brq1/Bq2N1n1 w - - 0 1 illegal: No possible last move
R1bQ3R/3r3B/3R1B2/1p1Bq1n1/1Nrn1q1k/1P1RBr1q/1KRN2pb/b7 w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 gxh5 Nc6 a5 Nb4 a6 Nxa6 cxd5 Nb4 Qc2 Na2 Qb3 Bf5 Qd1 Bc8 h4 Ke7 d4 Kf6 Kd2 c5 Kc2 a5 e4 b5 d6 g5 b3 c4 h6 a4 d7 g4 d5 g3 h5 Kg5 e5 f5 d6 a3 h7 c3 e6 Ra7 h6 Qc7 d8R Ne7 d7 Qe5 Qd5 Nc6 Ne2 Bd6 e7 Rf8 Nd2 f3 h8R f4 e8B f2 h7 f3 Bg6 Nd4+ Kb1 g2 Rg1 Kh4 Nf4 Rc7 Bfd3 f1Q Bde4 f2 Nd3 Rf3 Nb4 Qc4 Qa8 Qce6 Bd5 Qh3 Re1 f1R Re2 Rd1 Rf2 Rc4 Qa5 Ba6 Ra8 Bc8 d8R Qee6 Re2 Bh2 Rd6 Qe5 Bd3 Ne6 Qd8+ Ng5 Nc6 Nb4 Re3 Rd4 Ra2 Nc2 Nb4 Rc4 Bg6 Nd4 Rc2 a2+ Ka1 Qe4 Rd3 Qf4 Nb1 Qe5 Be3 Rf7 Bf5 Rf1 Bg6 R1f3 Nd2 Rd7 Re8 Qef5 h8B Qe6 Bf6 Qe5 Rc1 c2 Bh7 Rf4 Rh8 Rf5 Rf1 Rf3 Rf2 c1Q+ Nb1 Qf4 Rc2 Qe1 Kb2 Qeg3 Nd2 Qe5 Bf7 Qgf4 Bd5 a1B+
N3nk1N/Bb2r1b1/2q1qn1P/N1R2BNR/1Rpr2KR/b1np4/1q2R3/1Q6 w - - 0 1 illegal: No proof kernel
N4N2/Q2nRN1n/2p1qb1b/3Bqk1p/1Rb1R3/2NN3r/rB1P1nr1/1K1R4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 h5 e4 f5 g5 a5 d6 Ke6 b6 f3 e5 f4 b7 h3 b5 a4 d7 c6 g6 h2 b6 a3 g7 a2 Bc4+ Kf5 e6 Kg5 e7 Rh6 e8N Kf5 Nh3 Qg5 d8N Qg4 Qa4 Qg5 Kd1 f2 Kc2 f1Q Qa7 f3 Nf2 Nd7 b8N Qg6 b7 Qe6 Bb2 Rg6 Bd5 Qfe1 Nc7 Ngf6 g8R Q1e5 Nf7 Rg2 Rd1 h1N Nd3 f2 Rg4 f1R Re4 Nh7 Nc3 Rf3 Rde1 Bh6 Rad1 a1B Kb1 Rh3 R1e3 Nb6 Nd7 Nf2 b8R Ba6 Nf8 Nd7 Rbb4 Bc4 Re2 Rb8 Na8 Rb5 Rg4 Ra5 Ree4 Ra2 Rb7 Ndf6 Re7 Nd7 Rh4 Bb3 Rb4 Bc4 Re4 Qh2 Na4 Bb3 Bc1 Bf6 Bb2 Bc4 Nc3 Qhe5
qN2bN2/7q/1PR3R1/R3nn1K/1bB4p/r1pRQNq1/3rRB1b/r1N2k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 Kd4 b4 h5 d6 f5 g5 a5 b6 c5 g6 c4 b7 a4 d7 a3 b5 a2 g7 h3 e5 h2 b6 Nc6 b8N Bb4 e6 Ra3+ Nc3 Nh6 g8R h4 e7 Qc7 d8N Bd7 d3 Be8 Qe2 Qd7 Rg6 Ne5+ Kg2 f3+ Kh3 f2 Nf3+ Kc5 Rhg1 f4+ Re6 Qd6 Rgg6 Nf5 Bd2 Rh5 Be1 Rg5 Qd2 Rg2 Ne2 Qd7 Nc1 h1Q+ Nh2 Kd4 Rc6 f3 Qe3+ Kd5 Be2 f1Q d4 f2 Ne6 Qfg1 Nf8 f1R Bd3 Rd2 Bf2 Qe4 Nf3 Qa7 Be2 Qa8 Bd3 Qf4 Be2 Qh6 Bd3 Qh7 Be2 Nf7 Bd3 Qh2+ Kg4 Ne5+ Kg5 Qf7 Kh5 Qg3 Rb1 a1B Be2 Bac3 Ra1 Bd6 Bd3 Bcb4 Ra2 Bd7 e8R c3 Re7 Be8 Ra7 Rdd1 Re2 Rd2 Bb5 Bc7 Ra5 Qh7+ Qh6 Ne3 Bc4+ Ke4 d5 Rg1 d6 Rh1 Nb3 Rha1 d7 Bcd6 d8R Bc7 Bd5+ Kd3 Rd7 Nf5 Nc1+ Kc2 Bc4 Kd1 Re7 Bcd6 Re3 Bc7 Rd3 Bcd6 Na2 Ke2 Nc1+ Kf1 Re6 Nd7 Ree3 Ne5 Re2 Bdc5 Be1 Bg1 Bf2 Qha7 Qg5 Bh2 Qe3 Qh7+
1R2N2K/3rqB1p/1RQ3BB/1b1r2B1/1Q1p1nNq/2nB4/nbP4b/kB2q3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 d6 g4 f6 b6 a4 b5 f3 g6 d3 g7 a3 b7 a2 g5 d2 g6 f2 b6 Qc7 Nh3 Qd8 Nc3 Qc7 Rb1 a1B Nd5 Na6 b8Q Nb4 b7 Na2 Rb6 Bb2 e3 Qf7 Qf3 d1N Bd3 f1Q Nf2 Ne7 g8B Qh3 g7 Ra5 Ng4 f5+ Kf4 Bd7 Kg5 f4 e4 Ba4 e5 Bb5 Ndf6 Ndc3 Qc6 f3 Ne8 f2 Be3 Ned5 Rb1 Qg3 Kh6 f1Q Bc1 Qfe1 Bg5 Ba1 Rb3 Bb2 Rb4 Qf4 Rb3 Qfe4 Rb4 Kf5 e6 Qe7 Bf7 Nf4 Rb3 d5 Rb4 Qd8 e7 d4 Qbd6 Ra7 b8B Rd7 Qdc5+ Rd5 Rb3 Qd6+ Bg6+ Ke6 Qb4 Rg8 Nef6 Rh8 e8B Be7 Bc7 Rf8 g8B+ Rf7 Ra3 Bd8 Ra8 Be7 Rab8 Qh4+ Nh5 Qee1 Bd8 Bf6 Be7 Be5 Bf8 Nh3 Bg7 Bh2 Bf8 Qhf2 Nhf6 Nf4 Ne3 Ke5 Bg7 Rd7 Bef7 Qg3 Ne8+ Qf6 Bf8 Qe7 Kg7 Qg4 Kh8 Qgh4 Nf5 Nb1 Bfh6 Nbc3 Bf1 Ke4 Ne3+ Kf3 Bfd3 Kf2 Bde4 Ke2 Ng4 Kd1 Bd3 Kc1 Be6 Kb1 B8f7 Re5 Bd5 Ka1 B5c4 Nc1 Ba2 Red5 Bb1 N1a2
3qKbBq/3rpR2/1pNqk3/2R5/PnNQ3B/4Nr2/1b1nBN1B/1b2N1n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 h5 Kf4 c5 Ke5 h3 d4 c4 g4 c3 f4 b3 a4 h4 g5 h2 g6+ Kg7 f6+ Kh6 d6 c2 d5 h3 g7 Kg6 f7 b2 f5+ Kh7 f6 Kg6 d7 Ra7 Ke6 b6 d6 Rh5 Bg5 c1B Nf3 Bb7 Na3 b1Q Ne1 Qd3 Nac2 Ba3 Ne3 Bb2 Rc1 Be4 Rc5 Na6 Be2 Nb4 Rf1 h1Q Rff5 Qb8 d8N h2 d7 Rh3 Nc6 Qf4 d8B Rd7 Bc7 Qd2 Na5 Bb1 Nac4 Qdd4 Qd2 Qc6+ Bd6 h1N Bh4 Qc7 Qc3 Qh6 Bh2 Rf3 Qd3 Qdf4 Qd4 Qg3 Rf4 Qh8 Rff5 Nf2 Rf4 Nh6 g8B Bg7 Rff5 Nhg4 f8N+ Kh6 Kf7 Qgf4 Nh7 Qfd6 Ke8 Kg6 f7 Ne4 Nf6 Ngf2 Nfg4 Nh3 Nf2 Nd2 Rf4 Ng1 f8N+ Kh6 Ng6 Bf8 Nge5 Kh5 B4g3 Kg5 Nc6+ Kg6 Rf6+ Kg7 Rf7+ Kg6 Nd5 Kg5 Bh4+ Kg6 Bf6 Kf5 Nde3+ Ke6 Bh4 Qd8+
k7/BRp1b1N1/4qn2/r2r2Nb/Qn1N3N/RQN3P1/BnK3pb/1r2q1N1 w - - 0 1 illegal: No proof kernel
1kBb3R/p2K4/3n4/P1B3N1/1rnRNbRr/3Bn1R1/2p3Q1/BqB1r1qq w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g3 f5 g4 fxg4 h3 g5 Nd2 g3 Rb1 g2 Qa4 g4 Qd1 g3 Ra1 Bb7 Nb1 Bc6 Na3 Bf3 Nb1 Bg4 hxg4 Qf6 Rh5 Qg5 Rh1 Qd8 Kd2 c5 Ke3 h5 Kf4 d5 Kf5 Kd7 e4 Kc7 Ke6 c3 a4 d4 f4 h4 b4 c4 b5 d3 a5 h3 f5 d2 f6 c2 g5 c3 b6+ Kc8 f7 h2 b7+ Kc7 g6 Rh5 g7 Qd3 Qf3 d1R Nd2 Nh6 g8R Ng4 Ra3 Re1 Nh3 g1B Ng5 Be3 Qg2 Bd6 f8B Na6 b8B+ Kb7 Kd7 Rh4 e6 Nc7 e7 Bb6 e8B Ne3 e5+ Qe4 e6 Bf4 e7 Nb5 Rb3 Bd8 Be5 Rb8 Bd3 Ka8 Rg1 h1Q Rb4 Nd6 Rd4 Rb4 Bf7 Kb8 e8R Qf5+ Be6 Qg6 Nde4 Qf5 Bd2 c1N Beg7 Nb3 Bc1 Nd2 Be7 Nc8 Bc5 Ndc4 Rh8 c2 Reg8 N8d6 Qf1 g2 Rf8 Nf7 Ke8 Qh7 Rd6 Rb6 Ba1 Be5 Bc8 Rb5 Rd4 Qh6 Qf2 Qb6 Kd7 Nfd6 Rf4 Rb1 Rg4 Bf4 Rf1 g1Q Qg2 Qb2 Rf3 Qa2 Rh3 Rb4 Rhg3 Qb1
2bB2nR/nrQ3rr/1Qr5/b2R1P2/2RbNqk1/5r1p/pR1RBR2/4N2K w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 f4 e5 Kf2 h5 Kg2 a5 b4 c5 d6 c4 f5 e3 g5+ Kf7 d5 e2 b6 e1B b5 a4 b7 e4 b6 c3 g6+ Kf6 g7 e3 d7 Kg5 d6 c2 Qd4 a3 Be2 a2 Nd2 Nc6 b8R Ra3 b7 Rh7 Qb6 Qc7 d8R Na7 d7 Qf4 Rh2 h3+ Kh1 h4 Ngf3+ Kg4 Rf2 h2 Ne4 Ba5 Bd2 Bd6 Rc1 Bc5 Bb4 Bd4 Be7 Nh6 g8R+ Rg7 Rh8 Ng8 Rd1 c1R Ne1+ Kh3 Re8 Rc6 d8R Rb3 Rd5 Rd3 Bh5 e2 Bd8 Rb3 Rd2 Rf3 Bf7 Kg4 Re7 Rh6 Rc7 Rf6 Rc4 Rc6 Kg2 h1R Be8 Rd6 Bb5 Rc6 Qc7 Rh2+ Kg1 h3 Ba6 Rg2+ Kh1 Rd7 Ra8 Rf7 b8Q Rh7 Qb1 Rgg3 Rb8 Rg2 Rbb2 Rgg3 Nc2 Rg2 Qg1 e1R Bb5 Rb1 Ne1 Qh6 Rcc2 Qf4 Be2 Kh5 Rc4 Rg7 Qh2 Kg4 Qb6 Qg5 Qhc7 Qf4 Rbc2 Rb5 Rb2 Rb3 Qa6 Rb8 Qab6 Rb7
b2r1n1R/1R2BKR1/2R2B2/P7/1bbN1k2/2p1n1r1/RQ2bnqp/Nb3BB1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 a4 b5 g4 h5 f4+ Kh6 d4 c4 f6 c3 d6 h3 d7 h4 Ke6 h2 a5 b3 f7 b4 d5 h3 d6 b2 Qe2 b3 Be3 Ba6 Na3 b1B Ra2 b2 Nc2 Nf6 Nf3 Nd5 Bg1 Bc4 f5 Rg8 Nfd4 Kg5 f6 Kf4 Na1 Bbd3 g5 b1B Qb2 Be2 g6 Qe8 d8R Qc6 g7 Nd7 Rc8 Rb8 Rc7 Rd8 Rc8 Qa8 Rc6 Qb7 Bf2 Qa8 Rg1 h1B Rg5 h2 Bg1 Ne3+ Rd5 Rh8 g8R Rh3 Rg6 Rg3 Rg7 Ne5 d7 Ng6 Rd6 Ba6 Rb5 Qg2 Rb7 Bac4+ Rd5 Rb8 d8B Ra8 Kd7 e5 Ke6 Bb4 f8B e4 f7 Rc8 Bf6 Rd8 Bc5 Nf8+ Ke7 Nd1 Re5 e3 Re6 Nf2 Rd6 Bg4 Re6 e2 Rc6 e1N Bd6+ Ke4 Bc5 Nc2 Bd6 Ne3 Bc5 Ne6 f8R Kf4 Kf7 Bd1 Rh8 Bde2 Bce7 Nf8+ Re6 Qh3 Rc7 Ba8 Rb7 Ba6 Rd6 Qg2 Rc6 Bac4+
2NB2R1/B1RQ1rn1/6p1/2p3bN/B3rNr1/k1KbqNbB/2P1r1B1/2nr4 w - - 0 1 legal: proof: g4 e5 h4 b5 d4 f6 dxe5 b4 g5 fxg5 a3 gxh4 axb4 h3 b5 Qf6 Be3 Qh4 Bc1 Qd8 Kd2 Ke7 f4 h5 e4 a5 b4 d5 e6 Kd6 e7 h2 e8B g6 b6 d4 b5 Kc5 b7 Kb4 b6 c5 f5 d3 f6 h4 e5 h3 e6 a4 e7 a3 f7 a2 Nf3 Ra4 Bc6 Rh7 e8B Qe7 Nh4 Na6 b8B Nh6 b7 Nf5 Na3 Qe5 Bcd7 Bd6 f8N Rf7 Nb5 Ng7 Ne6 Qd4 Na7 Bg3 Rg1 h1R Nf3 h2 Rg2 Bh4 Re2 Rg1 Bb2 h1R Nf4 Be7 Bdh3 Rg4 Bfg2 Bg5 Re7 Re1 Rc7 Bf5 Rb1 Qg1 Bf6+ Ka3 Kc3 d2 Rb6 Rb4 Ba4 Re2 Rd6 Qf2 Nc8 Qe3+ Rd3 Rd4 Ba7 Nb4 b8N Be4 Nd7 Bf5 Qe1 d1R Qd2 Be4 Ndb6 Bf5 Nh5 Rdf4 Be7 Be4 Nd5 a1B+ Kc4+ Bc3 Rd4 Nd3 Bf6 Rf5 Ndf4 Nc1 Rd8 Re5 Qd7 Be1 Rg8 Bg3 Bd8 Bd3+ Kc3 Re4
bN3rN1/1B1r4/N4pQR/1krBP3/1NrKpb1B/B1Rnr3/2B2n2/6qb w - - 0 1 illegal: No possible last move
1B2B1N1/2R2rrn/2K1P1pn/pN2n3/n2Q2B1/2qNB1RN/kb1Br3/4nb2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 h4 a5 h6 d3 b6 g6 b5 f6 h5 f3 b7 d6 b6 d2 h7 f2 h6 Bg7 Rh3 Ra7 Nc3 Qc7 Nb5 Nd7 b8B Nf8 Rg3 Bh3 b7 Qc5 Bg2 f1N e3 Kb4 c4 Nh2 Qg4 d1R Bd2+ Kb3 Rc1 Nf3 Bc7 Qb4 Kd5 f5 b8B f4 e4 Ka2 c5 Qc3 e5 Ne1 c6 f3 Bb6 f2 c7 f1N c8B Rf7 Qd4 Bf6 Bc5 Ne3+ Kc6 d5 Bg4 Nc4 e6 Rg7 Be4 Bf1 Nh3 Be5 Bc2 Bf6 Ba4 Be5 Be3 Rd2 Bb4 Re2 Rc2+ Qb2 Bbd2 Rf7 Qb6 d4 Qc5 d3 Qd4 Nf6 Rc1 Rg8 h8N Rgg7 h7 Ng8 Rc3 Nh6 Rc1 Re7 Nf7 Qc3 h8N Bf6 Ne5 Nh7 Nhf7 Rd7 Bg5 Rb7 Bde3 d2 Nd3 d1N Bd2 Ndb2 Bge3 Ng8 Nh6 Rbf7 Nf5 Nh6 Ne7 Bg5 Ng8 Be7 Bd1 Na4 Bc2 Ba3 Bd1 Nab6 Ba4 Bb2 Kc5 Qb3 Na7 Ne5 Be8 Na4+ Kd6 Qc4 Nb5 Qb3 Rc6 Qc3 Rc7 Nc4+ Kc6 Ne5+
N2K3N/NR1br3/nB1Pb1rB/bR2p3/2r3bB/1QpB3n/3N3q/1B1b3k w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 c5 Kg5 Ke5 a4 Ke4 f4 b5 g4 e5+ f6 h5 d4 b3 a5 b2 d6 h3 d7 b4 a6 h4 f5 b3 d5 c4 d6 c3 a7 h2 Nf3 h3 Ra5 Rh4 Nd4 Be7 Nc6 Nh6 Rb5 Na6 Be3 Qh8 d8B Bd7 Beb6 Nf7+ Kg6 Ng5 f7 Rb8 f8B Rb7 a8N Kf4 f6 Kg3 Be2 Kg2 Nd2 b1B+ Bd3 b2 f7 Bc2 Na7 b1B Bh6 Ba2 f8N Bae6 Qb1 Bf6 Qb3 Bd1 Rf1 Be7 Rf7 h1R Rh7 h2 Rg7 Nf3 g5 Ng1 Rh7 Beg4 Kf7 Nh3 g6 Rg1 g7 h1B g8B Bde6+ Ke8 Rd7 Bdc7 Bd8 Ng6 Kh2 Bf2 Bc6 Bcb6 Kh1 Rg7 Qh7 Nh8 Rg2 Bf7 Bc7 Bfg6 Re7+ Kf8 Bcd7 Be1 Rh5 Bh4 Rg5 Bgf5 Rg6 Bb1 Rg3 Bfd3 Rg1 Bc5 Ba5 Bb6 Re1 Rf7 Re4 Rg7 Rc4 Rf7 Bc6 Rg7 Rd7 Ke8 Re7+ Kd8 Bcd7 Rg8 Qf7 Re8 Qf2 Rf8 Rh7 Rf7 Qh2 Rg7 Be8 Rc7 Re7 Rb7 B8d7
BRRQNq2/4R3/P2RR2n/nQ3p2/1nKNr1bn/2Rr2k1/4rp2/n1b3B1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 d4 Kf6 Kd2 Kf5 Kd3 Kg4 e4+ f3 a4 b5 d6 c5 h6 g5 a5 f6 d5 b3 h5 b2 e5 b4 e6 b3 h7 Na6 h6 Kg3 e7 g4 e8R f2 d7 Nb4+ Kc4 Rb8 Nc3 b1R a6 Rb2 d6 Re2 Rb1 b2 Qd5 Bg7 Re5 Qf8 d8Q Bf5 Ra1 b1N d7 Rb7 Nb5 Na3+ Kb3 Rc7 Re6 Nc4 Nf3 Na5+ Kc3 c4 Nd6 Rc6 Ne8 Rd6 Bg2 Re4 Qb5 Rd3+ Kb2 c3+ Ka3 Nac6 Re1 Na5 Be3 c2+ Ka4 c1N Ra3 Ncb3 Nd4 Na1 Rc3 Kh4 Ka3 g3 Bf3 Bg4 Re2 Re5 Ba8 Re4 Ka4 Ne7 Ka3 Nf5 Kb2 Rg8 h8R Kh3 h7 Bh6 Ka3 Rg7 Rg8 Re7 h8R Kg2 Rg6 Bf4 Rd6 Nh6 Rg7 Re6 Re7 Bg5 Qc7 Re5 d8R Kh3 Rc8 f5 Bf4 g2 Qd8 g1N Bh2 Nf3 Bg1 Bc1+ Ka4 Rd5 Re1 Nh4 Rg8 Rf4 R1e6 Re5 Rb8 Kg3 Rbc8 Nd5 Rh8 Re2 Rb8 Nf6 Kb4 Nd5+ Kc5 Nb7+ Kc4 Rfe4 Rc7 Nb4 Rcc8 R2e3 Rh7 Re2 Rhe7 Na5+
nN1RRR2/3npKRR/3n1B2/1r1qN1r1/1bB2k2/3np1N1/2brP1n1/Q4N2 w - - 0 1 illegal: No possible last move
1NQNnrBk/1bn1pn1b/6B1/p3b1R1/n4BN1/1r3Nn1/1R3Pq1/1KB4N w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 Kd2 Kg7 Kc2 a5 b4 c5 g4 h5 d6 c4 g5 h3 b6 h2 d5 c3 b5 e3 g6 h4 b7 h3 d7 e2 b6 Na6 b8N Nc7 d6 Bb7 Nf3 Nf6 Nbd2 e1N+ Kb1 Nd3 Ne4 Nc5 Ra2 Nfe8 Qc2 Na4 Rg1 h1N Ng3 h2 Rb2 Rh3 Bd3 Kh8 Rg2 Qc8 d8N Qg4 d7 Bg7 Ndc6 Be5 d8N Qe4 Qb3 Qg4 Qe6 Qe4 Qc8 Qd5 Ne4 Ng3 Bc2 h1B g7+ Kh7 g8B+ Kh8 Ncd4 Qc6 Nf6 Qd5 Bg6 c2+ Ka1 Qe4 Ng4 Qc6 Ne2 Qe4 Be3 c1N Bf4 Nd3 Bc1 Qc6 Rg1 Bg2 Kb1 Bf1 Nh4 Qg2 Nf3 Nh5 Ng3 Be2 Nh1 Ng3 Re1 Bd1 Re3 Bb3 Ree2 B3d5 Rb5 Be4 Reb2 Bf5 B6f7 Bh7 Bg6 Bc3 Rd5 Ne5 Rc5 Nf7 Rg5 Bd5 b7 Be5 Na6 Bc6 b8B Bd5 Ba7 Rb8 Bae3 Rb3 Nb8 Bb7 Bf4 Rh6 Bd3 Rf6 Bf5 Nfd6 Be4 Rf8 Bg6 Nf7
1Q3R1R/2b1QQ2/2N1Q3/qQpr4/pB2b2b/K2B1n1N/Qn1r2Pk/1n1r3r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kf7 d4 Kf6 Kd2 Kg5 Kc2+ e3 Kb2 Kf4 f3 Kg3 d6 a5 b6 c5 b5 h5 b7 e5 d5 e2 b6 e1N f4 e4 f5 a4 d7 h3 f6 h2 f7 e3 d6 h4 Qc2 e2 Ra3+ Nf3 Nc3 e1B Nb5 h3 Bd2 Ne7 Bb4 Nd5 Nd4 Nc6 b8Q Bb7 Bd3 Na5 Nc6 Nc3 Rb3 Rg8 Ka3 Rg5 Qa2 Rd5 Rb1 Be7 f8Q Bh4 Qf7 Qc7 Qbe8 Rd8 Qee6 Bd2 Rf1 Bf4 Rf2 Ba8 b7 Qb6 b8Q Qb5 Kb2 Nc4+ Kc2 Qa6 Qb5 Nb2 Rf1 Qa5 Rf2 Rf8 d8Q Be5 d7 Bc7 Qdb8 Re8 Qef6 Re2+ Kc1 Rd2 d8Q Rf5 Q6e6 Re5 Na7 Be4 Nc6 Rd5 Qde7 Nd4 Rf6 Nf3 Ne2+ Kf2 Nf4 Kg3 Rf1 h1R Rh6 h2 Nh3 Rg1 Rh8 h1R Qh7 Ne1 Rff8 Kh2 Qhf7 Nf3+ Bf1 Nbd1 Bd3 Re1 Qc2 Ne3+ Kb2 Ned1+ Ka3 Reg1 Qc1 Nb2 Qb1 Rgd1 Qa2 Nb1+
NK1N1RrB/2BQN3/1p2b3/2n4p/1r2bn2/1r1B1R1B/nP2NN2/kb2qb2 w - - 0 1 illegal: No extended proof kernel
r5RK/3kNQR1/1p1n1b2/rPB1pqr1/bQR2R2/2N3B1/2bR1n2/n3r1R1 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 a4 c4 d5 cxd5 gxh4 Bc4 Bh6 Bb3 axb3 Qe2 Bg7 Qd1 Bf8 Ke2 c5 Kd3 h5 Ke4 e5 f4 c4 d4 c3 g4 b2 a4 c2 b5 h3 g5 h2 d6 b6 f6 h4 d5 h3 g6 Ba6 Kf5 Ra7 g7 Ra8 Kg6 Nc6 f5 Be7 a5 Qc7 d7+ Kd8 f7 Nd4 f8B Nf3 f6 Qa7 f7 Ba3 Qf1 Nd4 Bc5 Qb8 f8R+ Kc7 d8R Rh4 Nc3 b1B Nge2 Qc8 Ng3 Nh6 Kh7 Rg4 g8R Nhf5 Rg1 h1N Bf4 c1R Kh8 Nd6 Nf5 h2 Ne7 Rg5 Bg3 Nc2 Rf4 Nf2 Rg7 Bb7 a6 Qf5 a7 Re1 Rdg8 Kd7 Qc4 Bb4 Ra4 Na1 Qd4 Ba3 Rc4 Bc2 Qe4 Bb3 Qb1 Ba4 Qb4 Ne8 d6 Be4 Bd4 Bec2 Bc5 Kd8 d7 h1R+ Rh4 Kc7 d8R Rh3 Rdd4 Nd6 Rd2 Kd7 Rf4 Re8 a8Q Rd8 Qd5 Ra8 Qf7 Bc1 Bh2 Rhg3 Ne4 Ra3 Nc3 Ra5 Rd3 Be3 Rd2 Ra8 Rc4 Bf4 Rhg4 Bg3 Rgf4 Bh4 Bg3 Rg4 Nd1 Bab3 Bh2 Bf6 Bg3 Rg5 Nc3 R3a5 Qg6 Ba4 Qe8+ Ke6 Qf7+ Kd7
1nBrn1q1/5p1r/1r1Pn1b1/QB3N2/1KpR3Q/nb6/6Bb/k2NBBBR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 e4 Ke7 g4 Ke6 d4 c5 Kd2 a5 Kc3 h5 b4 f3 d5+ Ke5 d6 f2 b6 h4 g6 a4 b7 a3 g7 h3 g5 h2 g6 a2 b5 Bf5 b6 Bg4 Nf3+ Ke6 e5 Rh3 Qa4 Kd5 e6 Rh7 e7 Bf5 e8B Nf6 g8B Bh6 g7 Bg6 Nh4 Bf4 Bb5 Ne8 Nf5 Ke5 Bg2 f1R Bd2 Rf2 Be1 Rb2 Qa5 Qc8 Rg1 h1B Rf1 Bg3 Rf4 Bh2 Rd4 Rb4 Bf1 Be4 Bg2 Bc2 Bf1 Bb3 Bg2 Na6 b8B Qd8 Ba7 Nb8 b7 Qg5 Kb2 c3+ Ka3 c2 Nc3 c1N Nd1 c4 Rb1 a1N Bf1 Rh8 Bh7 Nd3 g8B Nf4 Bg2 Ne6 Rc1 Nc6 b8Q Qd8 Qb7 Nb8 Qe7 Qc8 Qh4 Nc2+ Kb2 Na3 Kc3 Bh5 Bg6 Rh7 Rb1 Be2 Bh5 Bd3 Be2 Bdc2 Bef1 Be4 Nh6 Bg6 Nf5 Qd8 Bd7+ Rb5 Bc5 Rb6 Bb5 Ra7 Kb4 Rd7 Rg4 Qc8 Bg1 Rd8 Rd4 Rc6 Nc3 Nf6 Bgf2 Rh8 Rd3 Ng5 Ng3 Rd7 Be2 Bh7 Bd2 Rb6 Rh1 Qe8 Bfe3 Rd8 Nd1 Bf5 Bh7 Qg8 Bf2 Ne8 Bef1 Be4 Bf5 Rh7 Bd7 Bg6 Bg1 Ne6 Bc8 Nf4 Re3+ Kd4 Re2+ Kd3 Nf5 Kc2 Be1+ Kb1 Rd2 Ne6 Rd4 Ka1
B1Rr1Q1Q/1P1Nb2p/1B3nBB/1k1q2qB/Nn2B1p1/4r1n1/b4R1n/1K2n3 w - - 0 1 illegal: No proof kernel
2BNKr2/B3Rnb1/r2Q1R1Q/3b4/1N1p1np1/kr6/q2qrPN1/Nb2N2N w - - 0 1 illegal: No possible last move, all moves rejected
2n1N2q/1k3bBb/1N2Q2B/rb1KB3/rp6/n1NP2R1/7p/qRnBN1bB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 b5 Kd4 h5 g4 b3 a4 c6 f4 Kc7 g5 b2 f6 b4 d6+ Kb6 d7 h3 f7 h4 a5+ Kb7 f5 h2 f6 c5+ Kd5 e5 g6 c4 g7 h3 Ra3 c3 Qe1 c2 Rg3 e4 Nf3 e3 Be2 Nc6 Nc3 b1B Bd1 Bc5 f8N e2 f7 Na7 d3 Rh5+ Bg5 c1N Rf1 Qe8 d8B h1B Bc7 h2 Be5 Nb5 Nd7 Bg1 f8B Na3 Nb6 Bd7 Bh6 Bb5 a6+ Ka7 Qd2 e1Q Qe2 Bg2 Qe4 Ba2+ Qc4 Bh3 Qb3 Bf5 Qc4 Qf2 Ne1 Bh7 Qb3 Qf6 Qc4 Qee7 Qb3 Qc7 Qc4 Kb8 a7+ Kb7 Qb3 Qc8 Qc4 Rb8 a8N Qe8 Nc7 Ra8 Qb3 Qc8 Ne8 Ra4 Qc4 Bb1 Qg4 Rg5 Qe6 Ba2+ Kd6 Ne7 g8B Qh8 Bfg7 Bd5 Bf7 Qc4 Bg6 Qa2 Be4 Qa1 Bh1 Bf3 Ne4 Nc8+ Kd5 Bh5 Nc3 Bf7 Rf2 Rg4 Rb2 Rc4 Rb1 Rc6 Na8 Rca6 Nb6 R6a5
1rN5/1n4RK/4BRrB/1r1pNb2/1b2B3/R1nB1p2/P1rB1k2/qQq1q1R1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 Kf5 g5 h4 b5 e4+ Kc5 c4 d5+ e6 f6 Kg6 b3 e7 d3 e8B Kd4 h6 f5 c5 f4 h5 b4 h7 g4 h6 d2 e5 Ke3 c6 b2 e6 b3 e7 g3 c7 g2 Rh3+ Kf2 Bd3 Nd7 Nf3 Ra7 Ne5 Bg7 Na3 b1Q Nb5 b2 Nd6 Nc5 Ba4 Qd7 e8R Nb7 Rf8 Qe7 Rf6 Bf8 Bac2 g1R+ Rg3 Be6 c8B f3 Be4 Ra4 Bcd3 Rc4 Qb3 d1R Bd2 Qc1 Rg5 Bh3 Be6 b1Q Nc8 Rc2 Qb4 Qbb2 Qb5 Qc3 Qb1 Qeb4 Rg3 Qa5 Rg5 Bb4 Kg7 Bf5 Rg4 Ne7 Rgg6 Rd8 h8R Nc6 h7 Na7 Kh6 Rg2 Rg7 Nb5 Rhf8 Rf1 h8B Rg6+ Kh7 Qd4 R8f7 Nc3 Rd7 Re1 Rd6 Re2 Ra6 Rb2 Bh6 Rec2 Bd2 Qe1 Ra8 Qac5 Ra3 Rb3 Rc7 Re8 Bg7 Rbb2 Bgh6 Qc6 Nb6 Rb8 Rg7 Qc7 Nec4 Qf4 Nc8 Qfe3 Ne5 Qc1 Kg8 Qee1 Kh7 Qg1 Nb6 Nd1 Nc8 Bc5 Ne7 Rb5 Nc8 Bb4 Bc3 Qb2 Qc1 Qe3 Rb1 Qa1 Qb2 Qe2 Bcd2 Nc3 Re1 Qed1 Qb1 Qc1 Rd1 Qf1 Re1 Qe2 Rg1 Qee1
BBQ2q1K/3BrNRB/r1R2b2/1NP4p/nnpNB3/4qb2/6rN/2k1r1n1 w - - 0 1 illegal: No possible last move, all moves rejected
1brn4/1n5B/2Q1Np2/rq1b1brN/4kN2/B1P4q/N1pB1R2/rBRK2B1 w - - 0 1 illegal: No possible last move, all moves rejected
6Q1/8/n2pBnN1/1Q1P1Qqk/pQnb2qr/3N1QK1/1R1b1B1R/r1r1Q2r w - - 0 1 illegal: No possible last move, all moves rejected
5bBk/N2b4/1pR3B1/1rB3r1/KQ1nNrP1/2nn2pq/B3qRNn/3NB3 w - - 0 1 illegal: No proof kernel
1n1q2R1/qrN1NR1B/1p5p/1q3R1K/2k1n1RB/QR1n1rNP/4b1N1/2qb4 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 f5 Qb3 f3 Kd1 f2 Kc2 f4 Qf3 Bd6 Qb3 f3 Qa4+ Ke7 Qb3 Bf4 gxf4 Ra4 Kb2 Kf7 Qd1 Ke8 Kc2 Ra8 Kd3 Kd7 Ke3 Kd6 a4 Kc5 d4+ Kc4 h3 c5 d6 g5 d7 b6 a5 b3 d5 h6 a6 b2 a7 g4 f5 g3 Kf4 g2 Kg4 Qf8 d8N Ne7 e4+ Kb4 e5 c4 e6 c3 d6 c2 f6 Qf7 d7 Na6 Ne2 g1Q+ Ng3 Qg8+ Bg5 c1N f7 Nc7 f8R Nd3 Rf7 Qg2 Na3 b1B Nc4 Kb5 Nc6 Rb8 a8R Qd8 Bh4 Ned5 e7 Bc2 e8N Rb7 Qc1 Rf8 Kh5 Nc3 R8a3 Bd1 Ne7 Ne4 Rg1 Na6 Ne3 Nb8 Nc7+ Kb4 Be2 f1Q Rc3 f2 Ra5 Qe1 Raf5 f1Q Ra3 Qh2 Ng2 Qh1 Qe3 Kc4 Rb3 Qa5 Bg4 Qa7 Qf3 Qe8 d8R Qb5 Qe3 Qf4 Bf3 Qd6 Re8 Qd8 Qc1+ Bc2 Qa3 Bd1 Bg4 Rg8 Bf3 Rg4 Rg8 Rf4 Bg4 Be6 Rfg5 Rf3 Bf5 Be2 Rg4 Bd7 Rf1 Bc6 Rf2 Qc1 Rf1 Qba6 Bh7 Ba4 Rb1 Bad1 Rb3 Rf6 Rf5 Qb5 Rd5 Rf2 Rdf5 Rf3
2K1Q3/7Q/Pb1Np3/1rNkr1NR/NBb3Bq/1N2pqbN/nb2n3/5nR1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 gxh5 fxe4 Ke2 Kf7 Ke3 g5 Kd4 c5+ Ke5 b5 a4 e6 h4 g4 d4 b3 f4 e3 h6 b2 h5 b4 h7 g3 h6 g2 f5 b3 a5 c4 f6 c3 d6 c2 a6 Ne7 d7 Rg8 Kd6 Rg4 h8Q Rg7 d5 Rh7 Nc3 b1Q Be2 b2 Qd3 Nbc6 Nh3 g1B Bd2 c1B Bg4 Nb4 Na4 Na2 Bb4 Bf2 Qe4 Rg7 h7 Nf5+ Kc6 Rb8 d6 Qe7 Kc7 Rg5 Qc2 Kg6 f7 Bb7 Qc6 Qf6 d8N Bg3 Qe8 Bd5 Nb7 Nd4 Na5 Rb5 Nb3 Qf3 Kc8 Qbe4 d7 b1N d8N Re5 Nb7 Bb2 N7c5 Nd2 Rag1 Bc4 Rh2 Bg7 f8N+ Kf6 Qg8 Nf1 h8N Ne2 Nf7 Qh7 Nd6 Qh4 Qh7 Bd4 Ng5 Bb2 Ng6 Bf8 Rhh1 Be7 Rh2 Bd8 Nf4 Bb6 Rhh1 Re4 Nfh3 Ke5 Nf2 Kd5 Rh3 Qh6 Rh5 Re5 Nfh3 Qhf6 Nge4 Qh4 Neg5 Bf2 Kb7 Be1 Kc8 Bg3
1BB1Rr2/1B2b1pn/1pr2RP1/3k1n2/q2bR1Rq/3b1N1R/b3Q1B1/4Nn1K w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 h5 Qc2 d5 cxd5 e5 Qf5 exf4 Qxh5 Qg5 Qh7 Qd8 Kf2 Kd7 h4 Kd6 a4 c5 g4 f5 Kg2 b6 d4 c4 e4 b3 h5 b2 e5+ Kd7 d6 Kc6 e6 c3 d5+ Kc5 a5 c2 d7 Nc6 h6 Qg5 d8R Nf6 d6 Nb4 a6 Ne8 d7 Qe7 a7 Nc6 g5 Na5 g6 Rg8 Rh3 f3+ Kh1 f4 Ra4 f2 Bg2 f1Q Nd2 b1B Re4 Ba2 Nf3 Qd1 Ne1 f3 Bf4 c1B Bb8 f2 Ngf3 Qh4 e7 Nf6 Re8 f1N d8R Bb2 Rdd4 Nb7 Qh8 Bce6 h7 Bf5 Rd6 Qa4 Rde6 Nd7 Rf6 Bd4 Rg4 Bd3 Re4 Qf2 Rg3 Kd5 Rgg4 Qg3 Rc8 Bc3 e8B Bac4 Bd6 Ba1 Bh3 Rb8 a8B Be7 Bf4 Nf8 Bd7 Bb3 Re8 Rc8 Bb8 Rc6 Bc8 Nd6 Bab7 Nf5 Ree6 Nd2 Ree4 Bd4 Bf1 Ne6 Bh3 Rf8 Bf1 Ng5 Qg8+ Kc5 Bg2 Nf1 h8R Be6 Rh5 Nh7 Rh3 Qh4 Qf7 Bb1 Qg8 Bea2 Qb3 Bd3 Qd1 Kc4 Qe2 Kd5
2N1N2B/1kN1Rp1R/2qn4/1q1R1BNn/p2Pqqr1/3b3K/r1Q3Nb/1R3n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 c5 b4 Kc7 g4 a5 Kg2 h5 e5 c4 g5 a4 b6+ Kb7 d6 c3 b5 c2 e6 Na6 d7 Nc7 e7 Nf6 g6 Ra6 e8N Ka8 b7+ Ka7 b8R Bc5 g7 Bd6 Bb2 c1Q g8N h3+ Kh2 h4 Nf3 Bb7 Bd3 Be4 Ne1 f3+ Be5 f2 Ne7 Qc8 d8R Qd7 Nc3 Rh5 Rb1 f1N+ Kg1 Bg6 Ne4 h2+ Kg2 Rc6 Ba1 Rc2 Ng5 Ra2 Qc2 Rh7 Rb6 Bf4 Re6 h3+ Kf2 Rh4 Nc8+ Kb8 b6 Nb5 b7 Rg4 Re7 Qf5 Rd4 Nd6 Be4 Qb5 Rd3 Nd7 Bh8 Nf6 Kf3 Qcb2 Rd4 Q2b4 d3 Q4c4 Kf2 Qcc6 Rd5 Bf5 d4 Bg6 Bf3 Bd3 Be4 Be5 Bf5 Bf4 Rg1 Be5 Rg2 h1Q Rg1 Qe4 Ng2 Qb3 Rh1 Qbb5 Nb6 Ka7 Nc8+ Ka6 Na7 h2 b8N+ Kb6 Na6 Ne3 Rhc1 h1Q Nac7 Qh2 Nc8+ Kb7 Rh1 Qg3+ Kg1 Nf1 Rh6 Nh5 Rh7 Qf2+ Kh1 Nfg3+ Kh2 Nf1+ Kh3 Bh2 Qc3 Qd2 Qc2 Qdf4
r2nB1q1/1B2p3/n1q4b/RB2k1KN/3N4/2P1pRnr/2NBnq2/1Q2BbN1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 b4 a5 f4 d5 c3 h5 b6 h4 f5+ Ke5 f6 a4 g6 h3 f7 h2 g5 d3 Ke3 a3 b5 d2 g7 a2 b7 Bh3 g6 Rh7 b6 Ke6 Kf4 e3 Kg5 d4 Bb5 d3 Na3 Nf6 g8B Ne8 g7 Nc7 Nc2 Nc6 b8B Ke5 b7 Bf1 Qe1 d1N Bd2 Nf2 Qb1 Rh3 Bh7 Qc8 g8B Nd8 Bg6 Bg7 f8N Qd7 Bd5 Qc6 Ne6 Ne4+ Kg4 Ng3 Ned4 Ne2 Kg5 Rh4 Be8 Rh3 Ba7 Na6 b8N Kd6 Bc5+ Ke5 Be1 d2 Ba3 d1Q Bc1 Qd3 Bcd2 Qdc4 Bg2 Qg8 Nd7+ Kd6 Nf6 Ke5 Qb3 Qb7 Nh5 Qc6 Rc1 a1Q Qb1 Qaa2 Bf3 Qd6 Bb7 Qde6 Qb4 Qb2 Ra1 Qc6 Ra5 Qba2 Qb2 Qaf7 Qb1 Qf2 Ngf3+ Ke4 Rg1 h1N Rg3 Kd5 Ng1 Ke5 Rf3 Nhg3 Ra2 Kd5 Ra1 Ke5 Ra5 Bh6#
1k1n1rrq/1bq1pNRn/5B2/bB1p4/Qn2RbnP/2N1B3/4KB2/1N1N3N w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 d5 b4 Kd7 f4 Kc7 c4 a5 f6 g5 c5 a4 f5 a3 b6+ Kb7 b5 d3 f7 a2 f6 d2+ Ke2 g3 Qa4 d1N Be3 g2 Nh3 g1B Nf2 Be6 c6+ Kc8 b7+ Kc7 b6+ Kd6 c7 g4 c8N+ Ke5 Na7 Kd6 Nb5+ Kd7 N5c3+ Nc6 b8N+ Kc8 Nd7 g3 Ne5 g2 b7+ Kb8 Nc4 Bh6 f8B Qc7 f7 Nd8 Bg7 Bc8 f8N Bf4 Ne6 Nf6 Nb2 Nh7 Ng5 Rg8 Bf6 Bgh2 Nf7 g1Q Ke1 Qg2 Rg1 Qg7 Bb5 Qh8 Nh1 Nf2 Rg7 Ng4 Nbd1 Bhg3+ Ke2 Be1 Na3 Bd2 Rc1 a1N Nab1 Be1 Rc2 Bd2 Rb2 Nc2 Rb4 Bd7 Re4 Bc6 Na2 Ba5 Nac3 Nb4 Bf2 Qe5 Be3 Kc7 b8B+ Kb7 Qa3 Qc7 Bba7 Rf8 Bac5 Kb8 Qa4 Bb7 Bf2 Rg8 Bce3 Ndc6 Rd4 Ka7 Na3 Raf8 Nab1 Kb8 Re4 Nd8
2q2n2/3p2RB/B2N1N1k/NNn1bK2/8/q2n2P1/1pbR2Q1/rnB1qrNB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kd3 Kg7 Ke4 h5 f4 b5 a4 e5 c4 b3 g3 d3 a5 d2 c5 h4 c6 h3 a6 h2 c7 b4 g6 b2 a7 b3 f6+ Kh6 f5 Kg5 g7 Ba6 c8N Bd6 f7 Kh6 f8N Ne7 g8B Ng6 Nh7 Nf8 Na3 b1N f6 b2 Kf5 e4 f7 e3 Qf3 d1N Qg2 Bf4 Nb5 e2 Nf6 e1Q Ncd6 Qc8 Bh7 Nf2 Ra4 Qec3 Rd4 Qa3 Rd2 Nd3 Be2 Bb7 Bf1 Na6 Be2 Ne6 f8N Nac5 Ng6 Nf8 Ne7 Bd5 Nc6 Bb3 Na5 Bc2 Bf3 Rg8 Bb7 Rg6 Ba6 Rg7 Nh3 Rf7 Rf1 h1Q Ng1 Re7 Rff2 Re1 Rfe2 Rf1 Re7 Rb8 a8B Rb6 B6b7 Ra6 Rg7 Ra7 Ne2 Qg1 Ba6 Qf2 Bc6 Qe1 Ng1 Qd1 Qe2 Rb7 Bh1 Qa1 Nb3 Ra7 Qg2 Qe1 Bb7 Ra5 Ba6 Qa4 Na1 Qb4 Nb3 Ra1 Na5 Qc3 Rg4 Qa3 Rg7 Be5+
K1N2b1q/B2pBN2/k2Br2N/1qR2q2/4n1n1/N1PBp3/r2b2N1/1QR2b1q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 Kd3 h5 Kc4 a5 b4 d3 f4 h3 g4 d2 f6 h4 f5 h2 c3 h3 b6 a4 Kb5 e4 g5 e3 b7 a3 f7+ Ke7 f6+ Kd6 g6 Kc7 g7 a2 Ne2 Na6 b8B+ Kb7 Ba3 Rh7 Bd6 Ka7 Nf4 Qe7 Ng2 Kb7 Bd3 Nh6 g8N Bg7 f8N Qe6 f7 Qf6 Ne6 Bf8 Ng5 Ng4 Nh6 Nc5 Qc2 Rg7 Rc1 h1Q Qb2 d1Q Qb3 Be7 f8N h2 Ng6 Qdf1 Ngf7 Bf8 Ne7 Q6f5 Qc2 Ka7 Ka5 Rg8 b5 Rg6 b6+ Kb7+ Kb5 Ne4+ Bac5 Ra4 Na3 Re6 Rab1 a1B Rb4 Qh5 Qb1 Bb2 Rc4 Qg6 Bb4 Qgf5+ Rc5 Ra8 Nc2 Ra2 Na3 Qhg1 Ka5 h1Q Kb5 Qgh2 Ka5 Ka8 b7+ Ka7 b8B+ Kb7 Ba7 Qh4 Rd1 Bc1 Re1 Bd2 Rc1 Qhf6 Kb5 Qh8 Ka5 Ka8 Kb6 Ba6 Nc8 Bc4 Kc7 Bb5 Kd8 Kb7 Be7 Ka6 Kc7 Qfh5 Kb8 Qff5 Ka8 Bc4 Rc7 Qb5 Bbd6 Qhg5 Rc5 Qf5 Bc2 Be2 Bd3 Bf1
N3R3/bBBp1NQR/2n3q1/1NpNB2r/k1B1r2P/q1rn4/2bN1r1K/6b1 w - - 0 1 illegal: No possible last move, all moves rejected
Nrn1B3/1N1ppqr1/Rn2q2R/NnQRBNb1/2N1b3/K6q/R5P1/1q3k2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 f4 h5 c5 a5 b6 a4+ Ka3 d3 b4 h3 b5 d2 f6 Ke3 f7 Kf2 f5 h2 c6 h4 f6 h3 b7 Ra7 b6 Bh6 f8N Bg7 f7 Bd4 c7 Ra6 Ra2 Qe8 Bb2 Bg7 Be5 Bf6 Bc4 Bg5 Ne6 Nc6 b8N Bb7 f8R+ Nf6 c8N Na7 Qh5 Qf7 Nc6 Nd5 Ne2 d1N Ned8 N1c3 Nd2 Rg8 Na5 Rg7 Rha1 h1Q Ng3 h2 Nf5 Qe1 Rh8 h1Q Rh6 Qh3 Be2 Ba8 b7 Nb6 b8R Be4 Ndc4 Kg1 Bd1 Kf1 Ndb7 Qe2 Ra8 Qeg4 Rb1 Qe2 Rb5 Qe1 N8d6 Nac8 Rd5 Qe2 Nb5 Qeg4 Kb4 a3 Nc7 Qe2 Ra7 Qe1 Na8 Qe2 Rad2 a2 Ka3 a1Q+ Ra2 Qb1 Bb3 Nba4 Bc2 Rb6 Ra6 Rb4 Bb3 Nab6 Bd1 Bf6 Qg5 Qe1 Qe3 Bg5 Bh5 Qe2 Qc5 Qeg4 Nh4 Qge6 Nf5 Nba4 Nd8 Rb8 Ndb7 Nab6 Bg6 Qff6 Be8 Qg6 Bh2 Qgf7 Be5 Nb5#
7N/r1Pp4/1qBkbB1b/5b2/Bp2Rn1b/2r2NN1/nN3R1K/q2BBrQ1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 b5 a4 e5 g4 Ke7 f4 h5 Kf2 h4 Kg2 e4 g6 e3 a5 b3 f6+ Ke6 c5 h3+ Kh2 b2 g7 b4 f7 e2 g5 e1B c6 d3 a6 d2 c7 Bf2 g6 Qe7 a7 Rh4 f5+ Kd6 f6 Rf4 Nf3 Nc6 Bb5 Nd4 Qg1 d1R Nbd2 b1B Ra2 Rb8 a8B Re1 Bac6 Nh6 g8B Rf1 g7 Ra8 Ba4 Nhf5 Bh7 Bd3 g8N Nb3 Nh6 Ng7 Bb2 Bf5 Bc3 Be6 Bc2 Bb7 Bd1 Rc4 Rb2 Nc1 Nf5+ Kc5 Rc2 Qd6+ Ng3 Nh5 Ra2 Bg7 f8N Nf4 f7 Ra7 Ng6 Bh6 f8B Ba8 Rb2 Na2 Be7 Bf5 Bcf6 Rc3 Nc4 Bb7 Nh8 Ba6 Na3 Bc4 Bd8 Bf7 Nc4 B7e6 Rd2 Qd4 Nb2 Kd6 Re2 Qb6 Re4 Bd4 Bh4 Bdg7 Bdf6 Bf8 Ne2 Be7 Be1 Bd8 Kg3 Be7 Rh2 Bd8 Rg2 h2 Rf2 h1Q Nd3 Qh5 Nb2 Qg5+ Kh2 Qg7 Ng3 Be7 Bd4 Beg5 Bf6 Bh4 Bg5 Qe5 Bf6 Qed4 Bdb3 Qd1 Bc2 Qc1 Bd1 Qa1
n1R1b2R/2pK3N/1b2N3/R1P1N3/1B2rr1Q/2b1p3/nnqb2k1/Rq1RB2N w - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 h5 g4 hxg4 Bd3 Kf7 dxe5 Bc5 e6+ Ke8 e5 Bf8 Be4 fxe4 Ke2 Ke7 Ke3 d5 Kf4 g5+ Kf5 a5 f4 g3 h4 d4 c4 g2 b4 g4 h5 e3 h6 g3 h7 d3 b6 a4 b5 d2 b7 a3 b6 a2 Nc3 Qd5 Qe1 d1N Nf3 g1Q Ne4 g2 Bd2 Bd7 Ng3 Nc6 b8R Ra5 b7 Nb4 Rc8 Qc5 b8R Ra4 Ra8 Nf6 Ra5 Be8 Qf2 Qc6 Be1 Nb2 Rd1 Rg8 h8R Rg4 Ra1 Qf1 Rg1 Nfd5 Nh1 Bg7 Qh4+ Bf6 Bf2 Qc1 Rd1 g1B Be1 Nb6 Rh7+ Kf8 Rh8+ Kg7 e7 Bf2 e6 Bc3 Ne5 Na8 Rf8 Bh5 e8N+ Kh6 Ng7 Qb1+ Kf6 Qg2 f5 Re4 Ke7 Bd4 f6 Bb6 f7 Rf4 Bd2 Be1 Kd7 Qgg6 e7 Qgc2 Bc3 Bd2 e8N Re4 Nf6 Rf4 Qf2 Kg5 Rh8 Re4 Qe1 Kf4 f8B Bg6 Nh7 Bf7 Nf2 Kg3 Nh1+ Kg2 Qh4 Bh5 Ne6 Be8+ Ke7 N4d3 Kd8 Nc1 Ba3 Rf4 c5 Rae4 Ke7 Qb3 Bab4 Q1c2 Rb1 a1B Kd8 Na2 Ke7 Bc1 Be1 Bd2 Rbc1 Nd3 Kd8 Bac3 Ra1 Qbb1 Ke7 Nb2 Kd8 Bf7 Kd7 Be8+
4R1K1/Nkp1P1B1/2nB3b/3Bn1rN/2p2q1N/1Br1R2Q/2q1rNbN/3br3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 f5 e4 h5 g4 a5 d4 h4 b4 a4 g6 a3 e5 a2 g5 h3 b6 Kc6 b5+ Kb7 g7 h2 e6 Qf6 g6 Ba3 d5 Nc6 d6 Kb8 b7 Nb4 d7 Qc3+ Bd3 Qd2 d8B Nf6 g8N Rh4 g7 Rh7 Be7 Bd7 Qb3 Ka7 b8N Kb7 b6 Qc3 Nd2 Ra6 Nh3 Bb5 Re1 h1R Nc6 Rh8 Nh6 Nh5 g8B Qf6 Nf2 Qg6 Bd6 Rg1 e7 Ba4 Bd5 Nf6 Nhg4 Rh2 Bc2 Nd7 Na7+ Nc6 Re3 Re1 Bd1 Ra5 Bb2 Bb4 Rb1 a1R Bg7 Ra3 Qc3 Rg2 Nh2 Qh7 Qd3 Rc3 Bb3 Ba3 Rd1 Bc1 Qf1 Rg5 Qh3 Re2 Rf1 Rg1 Rd1 Rh1 Rg1 Qg6 Rg4 Rhe1 Rh4 Rc5 Rh8 Qh7 Re8 Ne5+ Kg2 f3+ Kg3 Ra5 Kf4 Rb5 Kg5 f4 Kf6 Qc2 Bf8 Rc5 Kg7 Ra5 Kg8 Rb5 Nh1 f2 Bg7 f1B Ndf3 Bg2 Nh4 f3 Nf2 Rc5 Re4 Bh6 Re3 Ka6 b7 Ra5 b8N+ Kb7 Nd1 f2 Nd7 f1Q Nf6 Qf4 Nf2 Ng6 Be4 Rg5 Bd5 Ne5 Nh5 Qd2 Ba2 Bd1 Bb3 Qc2
1n6/1PQRbRRN/N3k2p/RBr2R2/5r2/1b1p1nBK/rq3rnN/1q5N w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 b4 a5 f4 d5 Kf2 e5 g4 a4 Kg2 h6 f6 a3 f5 d3 g5 a2 g6+ Ke8 c5 Kd7 b6 d2 g7 e4 b7 d4 c6+ Kd6 f7 e3 b5 e2 f6 e1Q b6 Na6 b8N Nc7 b7 Be6 Na6 Be7 f8N Nb5 f7 Rc8 c7 Nf6 g8R Nd7 Nh3 Bb3 Rg7 Nb8 Nh7 Ke6 Qc2 d1N Nd2 Rf8 Nf2 Ne3+ Kh3 Ng2 Nf3 Qd7 Bd2 Qb1 Bf4 Qd6 Rh2 Qb6 Bg3 Qb2 Rd1 a1R Nh1 Ra2 Rd3 Nc3 Rd1 Nb1 Bb5 Nd2 Rf1 d3 Ra1 Rcd8 c8R Rd4 Rd8 Rf4 Rd7 Rc8 f8R Rc5 Rf5 Qb1 Ne5 Nf3 Ng4 Qb2 Ba4 Qb4 Bb5 Qe1 Qc3 Qec1 Qa5 Qcb1 Qc7 Ne3 Rgf7 Rfc4 Rg2 Ra3 Bh2 Rf4 Nhf2 Ra5 Rg1 Nc2 Kg2 h3+ Kg3 Ne3 Rg2 Raa4 Rg1 Rab4 Ra5 Ra4 Rg2 Ra1 Bg1 h2 Kh3 h1R+ Bh2 Rf1 Nh1 Ra2 Rg1 Rd4 Bd6 Rf2 Nh2 Rb4 Rgg7 Ng2 Bg3 Rf4
3RBRQB/Bpq1rn2/3N1Rbb/n2q3p/Kr2nPN1/2RR1n2/3Bk3/1b6 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 e5 g4 h5 a4 e4 f4 e3 g5 e2 f6 e1Q a5 c4+ Ka4 b3 a6 c3 a7 b2 g6 c2 f7 h3 g7 h2 Ra3 Qd7+ Bb5 Nc6 Qg4 Nd8 Rd3 Rh6 Nd2 b1B Ne4+ Ke7 Nf3 Ne6 Nd6 Kf6 Bd2 c1N Ne5 Qc7 Be8 Ng5 Rf1 h1N Rff3 Rb8 a8R Bf5 Ra6 Nb3 Qg2 Nf2 Ng4+ Kg6 Rc3 Qee7 Rfd3 Qe5 Qg3 Na5 Qg1 Nf6 g8R+ Bg7 f8B+ Nf7 Be7 N6e4 Rf8 Nh3 Bf6 Nhg5 Rac6 Rh7 Rb6 Bh6 Bh8 Ra8 Ne3 Rc8 Nb5+ Qc6 d6 Rd8 d7 Qc7 d5 Rg7 d6 Kf6 Rg8 Ne5 Rf8+ Ke6 Rd5 Ngf3 Ra6 Re7 Qg8+ Nf7 Ng4 Bg6 Rd4 Q7b6 Rd5 Rc8 d8B Qcc5 d7 Qd4+ Ka3 Rc4 Bc7 Qe5 d8R Rb4 Bb8 Qed6 Ba7 Qbc7 Rdd3 Qdc6 Re3 Q6d6 Rac6 Kd5 Ra6 Qdd7 Rf6 Qdd6 Rc8 Qdc6 Nd6 Qc5 Rd8 Kd4 Bb8 Qd5 Ba7+ Rb6 Rc5 Rb3+ Ka4 Rb5 Ra3 Rb3 Rc4+ Kd3 Rd4+ Ke2 Rd3 Rb5 Rac3 Rb4+
b2n1B1R/3kb3/rR3rbN/r2q3B/2P1Q1rp/3b1npN/1K1N1QN1/1NN5 w - - 0 1 illegal: No proof kernel
rB3BN1/2b3p1/2BPbR2/4Qn1q/3KR3/r3Bbn1/knN2p1B/1nb1NN2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 h4 a5 d4 c5 e4 f5 e5+ Kc7 e6 Kd6 b6 a4 e7 a3 e8N+ Ke7 b5 c4 b7 c3 d6+ Ke6 h5 Kd5 h6 a2 b6 f3 Ke3 c2 d7 g3 h7 f2 Qe1 g2 Bb5 f1B Na3 Na6 b8B Be2 b7 Ne7 Nd6 Nb4 Rh4 Bf3 Re4 Qa5 d8B Be6 Ndc4 Nd3 Nd2 Nb2 Nf1 Rg8 Rb1 a1N h8N Nb3 Ng6 Nd2 Bh2 Ra7 Ra1 Nb1 b8B Ra6 Bd2 c1B Nc2 Ra7 Bd7 Kc4 d5+ Kb3 Bc6 f4+ Kd4 Rh8 Be3 Nf5+ Ke5 Rh3 Ne7 Ra8 Ng8 Be7 Bdb6 Bd8 Bbc5 Bc7+ Bd6 Qb5 Ra6 Qe2 Rb6+ Ka2 Qc3 Ne7 Kd4 Nf5+ Kc5 Qd1 Qe5 Rg3 Bf8 Rh3 Ne2 g1N Ned4 Ne2 Ne1 Neg3 Ndc2 Bg4 d6 f3 Rbb4 f2 Rf4 Bf3 Rbe4 Ne7 Rf6 Nef5 Rg4 Rh4 Rc4 Rd4 Rb4 Rd3 Re4 Rda3 Qc3 Nh6 Qe5 Qe2 Kd4 Qb5 Qf4 Qh5 Qe5 Nhf5+
2NB2r1/1p1p4/8/B2R3Q/B1br2b1/rNN1P1k1/bb2rqN1/1RKBn1Nn w - - 0 1 illegal: No proof kernel forced: wxLB
2R3R1/qpRB2QR/4p3/NN1k1N1q/3qN3/nR2r3/qP1n1n2/1qBr2bK w - - 0 1 illegal: No proof kernel
r3R1nr/n3nBk1/1pNQ4/1Q3pB1/6n1/2K1RP1r/1R3R1q/R1nrRb1N w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 h4 gxh4 d6 Bg4 d5 Bg7 e3 Bd4 exd4 Bc8 Kd2 Kf8 g4 h5 a4 c5 g5 e5 d7 f5 f3 c4 g6 e4 a5 b3 d6 b6 d5 e3+ Kc3 h3 a6 e2 g7+ Kf7 a7 e1N Ne2 b2 Qd3 h4 Na3 b1R Nb5 h2 Ng3 h3 Nd4 Qe7 d8Q Rh7 d7 Qe5 d6 Nc6 Bg5 Nce7 Qc7 Rd1 d8R Rh6 d7 Rh8 Qd6 Ba6 Re8 Nc2 d8R Nb4 Be2 Bb5 Re1 Nbc6 Nh1 Qf4 Rb1 Qg3 Rb2 Ba6 Kc2 c3 Qb5 Qf4 Kb3 c2 Kc3 c1N Bf1 Ng6 R8e2 Ng6e7 Re8 Qg3 Re3 Qg1 Ng3 h1N Bd3 Nf2 Nh1 h2 Bb1 Rd8 a8R Na7 Nc6 Ng4 Ba2+ Nb3 Ng3 h1R Rf2 R1h2 Nh1 R2h3 Rb2 Qh2 Rf2 N8h6 g8R Rb8 Rg6 Nhg8 Rge6 Rd8 R1e2 Nc1 Rb2 Rb8 R6e5+ Kg7 Bf7 Rc8 Re1 Rd8 R5e3 Rb8 Qbd5 Bf1 Qb5 Nac8 Ra7 Ra8 Ra1 Na7
4n2n/4B2b/rb1R1q2/2N1N3/NK1p2qp/Q1N1pr2/NN1R1PBk/1Qb1n3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 b4 Ke5 c4 Kf4 f6 e5 g5 a5 b6 d5 g6 h5 f7 a4 b5 d3 Kc3+ d2 c5 h3 b7 e4 b6 d4+ Kb4 a3 g7 h4 Ne2+ Kf3 Bg2+ Kg4 Nbc3 e3 Na4 h2 Nb2 Ne7 g8Q+ Ng6 Nc3+ Kf4 Rf1 Nd7 b8N h1Q b7 a2 Na6 Qg1 b8N Nf6 Nc6 Bf5 Ne5 Ne8 Rb1 Be7 f8N a1B Qa2 Bd6 Qaa4 Bc7 c6 Qf6 Nfd7 Bb6 c7 Rf8 c8N Nh8 Qa3 Bh7 Ndc5 Ra7 Qdb3 d1N Re1 Rff7 Re2 Ra8 Rd2 Raa7 Nba4 Nb2 Nd6 Ra8 Ndc4 Nd3+ Kb5 Bb2 Nb4 Qd1 Nba2 Ne1 Kb4 Qg4 Qc2 Raa7 Ra1 Ra5 Qb1 Ra6 Qb3 Kg5 Nb7 Bc5+ Kb5 Qff5 Nab6 Qd1 Nb4 Ra8 Ra6 Qdf3 Nba4 Qg3 Rh6 Bb6 Nba2 Ra6 Rc6 Qe6 Qb4 Rf3 Qb3 Ba1 Ba3 Qf6 Be7 Bb2 Rd6 Bc1 Ncb2 Kf4 Kb4 Qgg6 Nec4 Kg4 Qa3 Qgg7 Nbc5 Qg8 Bh1 Kh3 Bg2+ Kh2 Ne5 Qg4
K3B3/1RN2R1B/nBRB4/1r2rQ1b/3prpRP/2nqq3/7p/1Bb1kb1N w - - 0 1 illegal: No proof kernel
n1bb3R/nq2r3/1N3Rr1/K1pB4/1Np3qN/1nQR1p1k/2q1P2B/RR3N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 h4 Ke7 d4 Kf6 Kd2 Kf5 Kc3 Kg4 b4 g5 d5 a5 d6 f5 b6 c6 h6 f3 d7 f4 b7 f2 h7 a4 h5 a3 h6 a2 b5 Ra6 b6 Bd6 Qb3 Qe7 d8R Bc7 Bg2 f1N Bd5 Nd7 b8N Nd2 b7 Nb6 Nf3 Na8 Nh4 f3 Nd7 Qe4 Kb4 c5+ Kb5 Qc2 b8N Rg6 Nb6 Ne7 Ka5 Re8 h8R Kg3 h7 g4 Rg1+ Kh3 Rf8 g3 h8R g2 Rf1 g1Q Na6 Qg5 Rf6 Qg4 Rdd6 Bd8 Qc3 Qgf5 Nb4 Nb3+ Ka4 Qg4 Bf4 Nc6 Nd2 Re7 Rfb1 Na7 Nf1 Rg8 Bh2 Rg6 Rd1 Nc6 Rab1 a1Q+ Kb5 Qa3 Ra1 Qa7 Rdb1 Qb7 Rd7 Nd2 Rdd6 Na7+ Ka5 Qg1 Bc6 Qg2 Rd3 Qg4 Bd5 Nb3+
1n1B1q1Q/1b2Rqqr/N4Nnp/1k2N3/3p2N1/1r1p3r/3bP1BB/1N2BRK1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 b4 Kd7 c4 f5 g4 a5 g6 a4 b6 Kc6 b7 h6 c5 d3 b5+ Kc7 g5 a3 b6+ Kc6 g7 a2 g6 f3 Bg5 f4 Bg2 Nf6 g8N Ra7 g7 Nh7 Nf6 Kb5 g8N Kc4 c6 Qc7 Ng4 Qe7 c7 Ra8 N8f6 Kb5 Qd2 Qe5 Qc3 Ra3 Kf1 f2 Nf3 Qe6 Nfe5 Qf7 Rh3 Be7 Re3 Rb3 Qb2 Nf8 Qd4 Be6 c8N Bb4 Ne7 Rh7 N7c6 Bd2 Nb4 Ng6 Na6 Bf5 Qc3 Be4 Qc8 d4 Qh8 Qg7 Bh4 Nd7 b8B Bb7 Bc7 Nb8 Bd5 Rc3 Bd8 Rb3 Kg2 f1Q+ Kh2 f3 Be1 f2 Bg2 Bc8 Nc4 Bb7 Re7 Qf8 Nce5 Qg1+ Kh3 f1Q Kg3 Qe3+ Kh2 Qf5 Kh1 Qg7 Kh2 Qef4+ Kg1 Qe6 Ne8 Qff8 Nef6 Bd5 b7 Qef7 Kh1 Nd7 b8B Bb7 Bd6 Nb8 Kg1 Bb4 Nd2 Ba5 Rc1 a1R Nb1 Bc3 Bf2 Bd2 Rf1 Ra4 B6c7 Rc4 Be1 Rc1 Nc4 Rd1 Bh2 Rc1 Nce5 Rc5 Nc4 Rh5 Nce5 Rh3
4qRRB/B3n3/1RrB1PN1/2Bp3B/K2b2p1/3k1nN1/p1r3R1/qnQ2r1b w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 Kb3 g5 f4 d5 h5 a5 b6 e5 c5 g3 c6 g2 f6 d3 f5 d2 f7 Bg7 f8R Bh6 f6 Qc7 b7 Kd4 Na3 e4 Ne2+ Kd3 Rh2 g1Q Nc4 e3 Rb1 Qe5 c7 Ra6 Rg2 Nd7 b8B Qe8 Ng3+ e2 Ba7 Rc6 Ka4 Ne5 b4 Bh3 c8R Ne7 b5 Nf3 b6 g4 b7 Qd4 b8B Be3 h6 Qa1+ Ba3 Bd4 Qc1 d1N h7 Rg8 h8B Nc3+ Kb3 Rg7 B3c5 a4+ Kb4 a3 Bbd6 a2 Ra8 Nb5 Ka4 Na3 Rb6 Nb1 Rg8 Qg6 Raf8 Qe8 Ne3 Rf7 Nef5 Rh7 Nh4 Rh6 Rf2 Bg2 Ng6 Bh1 Bg2 e1R Re2 Nfd2 Bf1 Rh2 Rg2+ Ke3 Bd3 Rf1 Rg1 Rhf2 Rg2 Re2 Bf5 Ref2 Be6 Kd3 Bf7 Re2 Nh4 Ref2 Bh5 Nf3 Ng6 Rc2
8/2b1Nkn1/K1R1bp1B/1NR4q/npNQR2P/1rq1b2N/q2pBR2/1R2r3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 b5 Kd3 d5 a4 g5 c4 g4 h4 g3 e4 g2 e6 f6 a5 b3 e7 b2 a6 b4 c5 Qa5 e5 Qb6 c6 Qc7 a7 Bb7 h6 Qd7 c7 Qd6 c8N Qc6 h7 Nd7 Be2 Kf7 e8N Nh6 Rh2 Nf5 Na3 Bd6 Nc4 Nb6 Bh6 Bc7 Nh3 g1B Rb1 Be3 Ne7 Na4 Rf2 Ng7 Qg1 Rg8 h8R Bc8 Rh7 Rb8 a8R Be6 Ra5 Rd8 Rc5 Rd6 Kc2 d3+ Kb3 d4 Qg4 d2 Qg1 Ba5 Nc7 d3 Nb5 Bc7 Qg4 Qf3 Qd4 Ra6 Rh8 Rb8 Rc8 d1Q+ Ka2 Qc1 Kb3 d2 Rc6 Qh5 Rc5 Bb6 R8c6 Re8 Bg5 Bd5 Bh6 Bc7 e6+ Kf8 Nf5 Kg8 e7 Kf7 Qf4 Be6 Qd4 Rd8 e8R Qc3+ Ka2 Rd5 Ne7 Rg5 Qd6 Rg1 Qd4 Qc1 Kb3 Re1 Rd8 Ra8 Rdd5 Rd8 Re5 Rd5 Re4 Rf5 Qe5 Rf3 Qd4 Qc3+ Ka2 Nb6 Bg5 Qc1 Ra1 Bef4 Bh6 Rd3 Nc3 Be3 Kb3 Nd7 Ka4 b1Q Kb5 Qa2 Rb1 Nb6 Ned5 Qca3 Ne7 Na4 Ka6 Q3b2 Nb5 Rb3 Bf4 Qc1 Bh6 Qc3
Bnqnq2b/5BN1/1K1n1p1R/1pBB3Q/1P2B1Q1/rpr5/k2B1N1b/1Rq5 w - - 0 1 illegal: No proof kernel
5r2/b2N2RR/2KRPR1n/1pq2RQ1/b2bkq2/Rp5n/B3pQ1r/qN2B3 w - - 0 1 illegal: No proof kernel
k4b1N/5q1r/P1qp1RN1/pBB1rB1b/p1Q4R/B1q1n2B/1R1K3R/6nn w - - 0 1 illegal: No proof kernel
R3B1q1/1N5p/1R2r1BB/1R1pPr1q/2n5/2R1Q2B/1nNqpK2/bbBk2r1 w - - 0 1 illegal: No proof kernel
2K2nN1/1Qb3pb/2r2BQQ/kq2n1Q1/Np1RR2q/2Qn2Q1/rP2p3/B4q2 w - - 0 1 illegal: Other
qn4k1/1bpR2B1/6q1/KBRpb3/NB1Qr3/b1p2q2/1BNPR1r1/RR3n2 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 b4 axb4 c3 bxc3 gxh5 Ra4 Qf3 Ra6 Qd1 Ra8 a4 Kf7 f4 e5 h4 b5 a5 g5 f6 d5 h6 g4 h7 e4 f5 b4 a6 g3 a7 b3 h5 e3 h6 e2 Nh3 g2 Nf4 g1B Bb2 Bb7 Nd3 Qe7 Na3 Be3 Nc5 Na6 Na4 Bf4 Nc2 Rb8 a8R Nb4 Ra5 Bg5 Rc5 Qd7 Qc1 Ke8 f7+ Ke7 Qb1 Re8 f6+ Ke6 Qa2 Qd8 Qa3 Na6 Qb4 Qc8 Qd4 Ne7 Rh2 Bg7 f8B Nb8 f7 Rg8 h8B Be5 h7 Nf5 Bhg7 Ne3 h8R Be7 R8h7 Qd8 Kf2 e1Q+ Kf3 Qh4 Bb5 Nf1 Re2 Qh3+ Kf2 Qe3+ Ke1 Qg3+ Kd1 Qf3 Rh1 Bd6 Be7 Qc8 f8R Qd8 Rf4 Qc8 Rfh4 Kf7 Rh7 Qd8 Rc4 Ba3 Bb4 Qc8 Rc5 Re6 R7h6 Ree8 Rd6 Re7 Rd7 Qd8 Bc1 b2 Rg1 b1Q Rh1 Qa2 Bb2 Qc4 Kc1 Qcd3 Kb1 Qg6 Ka2 Qc8 Kb3 Qd8 Nb6 Qc8 Ka4 Qf8 Ka5 Qd8 Bh6 Rg7 Rg1 Kg8 Na4 Qgf7 Rh2 Bf4 Rg5 Re4 Rhg2 Nh2 Be2 Na6 R5g4 Qa8 Bb5 Be5 Re2 Rg5 Bf8 Qg6 Rgg1 Rg2 Rgb1 Nf1 Bg7 Nb8+
Nb1qb1Bb/pR3nB1/1N1N2K1/Q2p3B/7B/2n2q2/RnBp1P2/N1r1rk2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 e5 b4 h5 c4 h3 g4 d3 g5+ Ke7 b6 Kd6 b5 Kc5 f6 h4 Kf5 Kd4 f7 d5+ Kg6 e4 b7 e3 c5 e2 b6 e1B c6 h2 c7 h3 Ne2+ Kc4 Nec3 Bd2 Nb5 Nc6 b8N Bd6 f8B Be3 b7 Nb4 Bg7 Bdc5 Nd7 Bf4 b8N Nh6 Na6 Nf7 Qd2 Re8 Ra2 Re1 Be2 Bd4 Bh5 Ba1 Rf1 h1Q Bcb2 h2 Bbf6 Bb7 c8B Bb8 Nac7 Bc6 Rg1 Be5 Nd6+ Kd4 Nb6 Be8 Bh3 Qf3 Na3 h1N Bf5 Ng3 Rf1 Ne2 Nc2+ Kc5 Rg1 Nc3 Na1 Kd4 Be7 Rc1 Rd1 Bf6 Qe1 Be5 Rdd2 Bf6 Rdb2 d2 Bc2 Nd3 Qf1 Ne1 Qa6 Nd3 Qa5 Re1 Nbc8 Rc1 Rb7 Nb2 Nb6 Be5 Kh7 Bf6 g6 Be5 Bh4 Re1 Bh6 Bh8 g7 Rc1 g8B Re1 Bb3 Kd3 Bc2+ Ke2 Kg6 Kf1 Na6 Bc7 Bf8 Rc8 Bg7 Bb8 Nc7 Nca4 Nca8 Rc3 Bb1 Rcc1 Bc2 Nc3
qRnN4/pBk4r/2qNp1bb/2R5/NBN3n1/2Pp1rNQ/R5Kq/3R3n w - - 0 1 illegal: No possible last move
4N1Nn/pnN3RK/p1N4R/Q1b2k1B/q2P3r/rq5N/4rpR1/BR3q1b w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 gxh5 Nc6 cxd5 Nb8 a5 Ke7 a6 bxa6 Ra4 Kd7 Ra1 Ke8 Kf2 Ke7 Kf3 Kf6 Ke4 g5 h4 c5 d4 g4 b4 c4 h6 c3 d6 f3 h5 g3 h7 f2 d7 c2 b5 g2 h6 Be7 b6 Bf8 b7 Bg7 Nd2 Ne7 Nh3 g1R Rh2 Rg8 h8R Bf8 h7 Qa5 d8N R8g6 Rb1 Nd5 Qe1 Ba3 Ne6 Nd7 b8N Qa4 Nc7 R6g3 Rg8 Rh1 h8R Bb7 Rg7 Nf4+ Nc6 Bc5 Rh6+ Ng6 Rg2 Ra3 Bb2 c1Q Ba1 Qc3 e3 Rc8 Be2 f1Q Bh5 Ra8 Nb3 Rh2 Na5 Qcb3 Qd2 Rh8 Qa2 Bc8 Ne7 Bb7+ Nac6 Re8 Nd5+ Ke6 Ng8 f6 Qd2 Nh8 Qa5 Re7 Nf2 Rh1 Kf4 Rh3 e4 Rh2 e5 Re8 Bg6 f5 Kg5 f4 Nh3 f3 Kh5 f2 Bf7+ Kf5 e6 Bd6 e7 Nc5 Nc7 Ba8 Re6 Rh1 Kh6 Bb7 Kh7 Ba8 Qd2 Nb7 Bh5 Bc5 Qa5 Rh2 Ng1 Rh4 Rh6 Rd8 e8N Rb8 Nef6 Re8 Nh3 Re2 Nfe8 Nd6 Nb4 Be4 Nc6 Nb7 R2g3 Bh1 Rg1 Rf4 R1g2 Rh4
R4BB1/Q1b4p/bRKp3N/1nB1kN2/1P1b1rb1/3RrR2/pn3q1b/4BB2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 Ke6 g4 a5 b4 d6 c4 d3 Kc3 e3 Kd4 e2 c5 e1B b6 a4 b7 d2 f5+ Kd7 Kd5 e5 f6 e4 c6+ Kc7 g6 e3 g7 a3 g5 e2 f7 a2 g6 Na6 b8B+ Kb6 c7 Bg4 c8R Bh4 Nh3 e1B Qa4 d1B Ng5 Beg3 Bd2 Nh6 g8R Nf5 g7 Nd4 Be1 Bh2 Nc3 Bde2 Nce4 Nc5 Ng3 Nd3 Nf5 Qf6 Rd1 Nb2 Rd3 Nb5 Rc6+ Kb7 Ba7 Re8 Qa3 Re3 Rb6+ Kc7 Rg1 Kd7 Rg3 Be7 f8B Bd8 Rf3 Bf2 Qa4 Bc7 Nf7 Qh4 N7h6 Bfg1 Be7 Qf2 Ra8 Rf8 g8B Rf7 Bf8 Rf6 Ra6 Rf7 Bc5 Rf6 Nh4 Rf7 Rb6 Rf4 Bg7 Ke7 Bf8+ Kf6 Kc6 Ke5 Qa7 Bc8 Bg2 Ba6 Bf1 Bd1 N4f5 Be2 Rh3 Bg4 Rf3 Qd2 Rc3 Rd3 Qb8 Bd4 Qa7 Re3 Rd3 Qf2
b2N1B2/3pR3/B2pb1br/3Pb1K1/RB3Nrp/4B2b/1q1B1Qn1/nkBQ4 w - - 0 1 illegal: No possible last move, all moves rejected
R1bb3Q/P2Np3/2b1k3/1b5R/2n1rpK1/rRBp2q1/1RNNBN2/bN4n1 w - - 0 1 illegal: No proof kernel
2R3Rn/2b5/n1KBBRr1/p2BB1p1/3Bb1pQ/P4rrN/7n/qN1Rnk2 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Kd7 h4 g5 e4 a5 d4 f5 a3 b5 e5 b4 d6 Ke6 d7 Kd5 h5 Ke4 c6 b3 d5 f3 c7 f4 h6 b2 h7 Nh6 e6 Bb4 d6 Bc3 e7 Be5 e8B Ra6 Nh3 Nf7 Bc4 Qf6 d8B Bb7 c8R Bd5 d7 Bc7 Ba2 Qd4+ Be3 Rg6 Be7 Na6 Qe1 Kd3 d8B Be4 Be6 Rf8 Ba4 Nh8 Bd6 Qc3 Bf6 Qc1 Nd2 b1R Bed4 Rb3 Bfe5 Qb2 Rc1 Qa1 Rc6 Rff6 Nb1 Rc3 Kf1 f2 Bd1 Rf8 Bf3 Rff6 Kg2 f1N Qh4 Ne3+ Kf2 Nc2 Rc1 Ne1 Rd1+ Kc2 Rb6 Rb3 Bh1 Rg3 Ke2 f3+ Ke3 f2+ Bf3 Nf7 h8R Rf4 Rhg8 Nh8 Bc3 f1N+ Kd4 Nh2 Bb2 Nb8 Kc5 Na6+ Kb5 Rf5 Bh1 Rff3 Bbd4 Bd3+ Kc6 Bf5 Rc1+ Kd3 Rd1+ Ke2 Bg2 Rf1 Bgd5 Be4 Rb3 Rf2 Rf3 Kf1 Rf6 Rff3
2B3n1/K3p1r1/3r1B1Q/1N1k1pRB/b3N1PR/1rn2B1N/q2Np2r/n1B1b3 w - - 0 1 illegal: No proof kernel
2r4r/Bk1B1nb1/b1N1nn1Q/pn1Q1K1q/N1p2N1p/1P3N2/3R3q/1NNR4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 g4 h5 d4 a5 b6+ Kb7 b3 f6 g5 h3 g6 c4 d6 h2 g7 f3 d7 f2 d5 h4 d6 Rh6 Be3 Qe7+ Kf5 Na6 Nf3 Rb8 Ra2 Qf7 Rd2 Nb4 Bh3 f1Q Qc1 Ka6 b7 Ra8 b8N+ Kb7 Nc6 Qf2 Nd4 Na6 Rhd1 Nc5 Bg4 Ne6 d8N+ Kb8 d7 h1N Nb7 Qh2 d8Q Nf2 Qd5 Nd3 Nc5 Ba6 Na4 Ne5 Bg1 Kc8 e4 Rh8 Ne2 Rb8 Ba7 Qh5+ Ng5 Nf7 e5 Rb6 Bh3 Rc6 Bg4 Kb7 Bh3 Nc7 e6 Nb5 e7 Nd4+ Ke4 Ne6 e8N f5+ Ke3 f4+ Ke4 f3 Kf5 f2 Nc7 Nf4 Ne6 Nf6 g8N f1N Ne7 Bg7 Bg4 Nd3 N6f4 Nc5 Bh3 Ne6 Bg4 Kc7 Bh3 Rc5 Nc6 Kb7 Ra2 Nd2 Rb2 Nde4 Rbd2 Qh6 Nf3 Nc3 Qb2 Ng8 Nc1 Nb5 Qf6 Qh5+ Ke4 Ned8 Bd7 Ne6 Qh6 Nfg5+ Kf5 Nf6 Nb4+ Rc6 Qd6 Rc7 Nc6 Rcc8 Qd5 Nf7+
NqB2rq1/2pp2BN/1Rb4K/P7/bb1npQBk/5R1n/3N1b2/2BNr1N1 w - - 0 1 illegal: No proof kernel
N4Rrn/RP3qkb/3Kp1qr/N1Rp4/5R2/pN2B3/n3rN1N/1B2b1rQ w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 h5 Ke4 a5 Kd5 a4 g4 d3 f4 d6 b4 h3 c4 h4 b6 h2 c5 h3 b7 d2 c6 Ra7 g5 Ra6 b5 Bd7 g6+ Kf6 g7 Bc8 c7 Kf7 b6 Ra7 f6 Bf5 c8N Rh7 Nf3 Bc2 f5 Ra6 Bd3 Nh6 g8N Nc6 b8N Qc7 b7 Rg7 Nb6 Ra8 Re1 h1Q Re5 Qg1 Nh2 Qg6 Qh1 d1R Nd2 Re1 Nb3 Re2 Be3 Ra6 Na8 Nb4+ Ke4 e6 Rc5 Na2 Nc6 d5+ Kd4 Bd6 Nca5 Bg3 Be4 Kf8 f7 Be1 Nf6 Rg8 Nfg4 Kg7 f8R Nf7 Nf2 Nh8 Rf6 Qcf7 Ke5 Rb6 Bd3 Rb4 Kd6 Rg4 Be4 Bd1 Bb1 Rg1 Nc6 Bc2 Nca5 Qh5 Rh6 Qg4 Rh4 Qgg6 Rf4 Bd3 Nhg4 h2 f6+ Kf8 Qe4 h1R Nh2 Qfh7 f7 Kg7 f8R Qf7 Nf3 Rh6 Nh2 Qhg6 Qh1 Nb4 Ra2 Bf5 Rac2 Na2 R2c4 a3 Ra4 Kf6 Nc4 Kg7 Ra7 Qg3 Nca5 Bh7 Bd3 Qg2 Bb1 Qgg6
kN4nb/4nq1n/B2B3R/2p1p1B1/1Np2qR1/B1rrQRR1/Br2P3/q6K w - - 0 1 illegal: No possible last move
2NqR3/3k1p2/p4B1K/3nB3/2r3N1/Nq1q1Bbr/2B2Prp/Nb1Q1BRb w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra4 Na6 Ra2 Nb4 Ra3 cxd4 Ra1 d3 Bg5 d4 Bc1 Nd5 exd5 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 e5 b4 h5 g4 e4 c4 h3 g5 h4 b6 h2 g6 a6 d6 h3 b5 Bg7 b7 Kd7 b8N+ Ke8 c5 Qh4 b6 Qh5 d7+ Kd8 b7 Be5 c6 Ke7 d8B+ Ke8 c7 Bf6 g7 Be7 Nf3 Qh4 Ne1 Bd7 c8B Nf6 g8B Ra7 Na3 Nd5 Bb2 Bf5 Rg1 h1B Nd7 h2 b8N Rc7 Nb6 Rc4 Bh7 Bf6 Nec2 e3+ Ke1 d2+ Ke2 Qg3 N8d7 Bh4 Bb7 Qc7 Bf6 Qd8 Rc1 Rg8 Nc8 Rg2 Kf3 e2 Bg6 e1R Na1 Bb1 Ne5 d3 Ng4 Kd7 Bbe5 Ree4 Rc2 Rc3 Rb2 Rec4 Rb6 Rb3 Re6 Rbc3 Re8 Rb3 Qe2 d1Q Ba8 Qc2 Qd1 d2+ Bgd3 Rbc3 Bb7 Qb3 Ba8 Ne3 Bc2 Rd3 Be4 Rdc3 Kf4 Nd5+ Kf5 Rcg3 Bf3 Rh3 Qc1 d1Q Qd2 Bg3 Kg5 Bh4+ Kh6 Qe2 Qe1 Qed3 Qd1 Bg3+
2N2Q2/1p4r1/2pr2Rn/2kNR3/1RPN1p2/1r2n1R1/2NnBn1B/1qRbn1K1 w - - 0 1 legal: proof: d4 g5 g4 a5 f4 gxf4 h4 e5 dxe5 Qf6 b4 axb4 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 Ke7 e4 f5 a4 d5 c4 h5 e6 Kd6 e5+ Kc5 g7 h4 g6 d4 e7 h3 e8R b3 a5 h2 e6 f3 e7 d3 a6 b2 a7 d2 Ne2 c6 Nd4 Qd5 Be2 Nd7 Qf1 d1R Na3 b1N Bf4 Ne5 Nac2 Rh3 Ra4 Nd2 Rb4 Nh6 g8R Qe4 g7 Rb8 a8N Be6 Ne3 Qb1 Nc7 Bd7 Nec2 Nd3+ Ke3 Be6 Nd5 Ne1 Kf2 Bf7 Rg1 Bh5 Rg3 h1N+ Kg1 Rd8 Rg6 Ra8 Bh2 Nf2 Rgf8 Rd8 g8R Rd7 Rff6 Rd6 Re6 Rc1 Re5 Rd1 Rg3 Rg6 Ra8 Rg7 e8N Bg4 Nd6 f4 Nc8 Nfd3 Qg2 f2+ Kh1 f1N Kg1 Bf3 Ra1 Nf2 Rg6 Bh5 Qg4 Rc3 Qf5 Ne3 Qf6 Rb3 Qf5 Qa2 Rc1 Qb1 Qf8+ Re7 Rg3 Be8 Nb5 Bh5 Bg4 Ndf1 Ndb6+ Rd5 Rg6 Nd2 Bf3 Bg4 Nbd4 Bh5 Be2 Bf3 Bf1 Bd1 Bd3 Nhg4 Be2 Nh6 Re4 Rd6 Nd5 Rf7 Re5 Rg7
1B4kr/3b3q/2Bqp2B/1np5/rNqq2Kb/1BqRNp2/QNPN1RN1/8 w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Nbd7 h5 Ng8 Qf3 Ne5 Qd1 Ng6 hxg6 Bh3 Qh5 Be6 Qd1 Bc8 Ke2 a5 b4 h5 d4 c5 g7 f5 b6 Kf7 b7 e3 Kf3 e2 b8N e1Q d5 h4 d6 h3 g6+ Ke6 d7 h2 b5 a4 b6 a3 b7 a2 Ne2 Rh6 Bg2 Qh4 Rf1 h1Q Rf2 Qg5 Nec3 Qhh4 Nc6 Qf6 b8B Ra4 Nd2 Qd4 Nb4 Nf6 g8N Rh8 g7 Nd5 Nh6 Nc7 Ng4 Kf7 Ne3 Nb5 g8B+ Kg7 Qe1 Qh7 Ncd1 Qd6 Rb1 a1Q Bb3 Qc3 Nb2 Qdd4 Qe2 Qc7 d8N Qcd6 Qc4 Bd7 Ne6+ Kg8 Qd5 Bh6 Ra1 Bg5 Ra3 Bh4 Nf8+ e6 Ng6 Bd8 Nh4 Bg5 Ke2 Bf6 Be4 Be7 Nhg2 Bg5 Qa8 Bh4 Bc6 f3+ Kf1 Qc7 Kg1 Qd8 Kh2 Qc7+ Kh3 Qcd6 Re2 f2 Qa5 f1Q Rf2 Qdc4 Ba2 Qfd3 Nf3 Q4b3 Nf1 Qd3d4 Bh6 f4 Nfe3 Qcd2 Kg4 Qbc4 Rd3 Q2c3 Bb3 Ra1 Nd2 Ra2 Qc7 Ra8 Qa5 Ra6 Qa1 Ra4 Qa2 f3+
K6b/RN1N2RR/2p2B2/2P1NN2/1nbR1Rq1/r2Qqb1p/1kqpB3/1r1q4 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 e5 axb5 exd4 Nh3 Na6 Ng1 Nc5 Ra3 Ne6 Ra2 fxg4 Ra1 g3 Ra5 g4 Ra1 Ng5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 f4+ Ke4 b4 h5 f5 a5 g6 h4 b6 d5+ Kb5 g2 Kc6 a4 c4 d3 b5 Kd4 e4 g3 c5 d2 e5 a3 f6 a2 e6 Rh5 b7 Be7 b8R Bd6 f7 Qe7 f8R Be5 b6 Ra3 g7 Qf7 e7 Ba6 e8N Nf6 g8R Qh7 b7 Qc2 Ng7 Bc4 Nc3 h3 Be2 Rf5 Ne4 Rf1 Nd6 Kc3 Ngf5 d4 Nf3 g1Q Rg7 d3 Bb2+ Kb3 Rbd8 g2 b8N Nd5 Kb7 c6 Nd7 Qe3 Rh8 g1Q Rhh7 Qg4 Bd4 Re1 Rf1 Nb4 Rf2 Bf6 Nfe5 Rh1 Qf1 d1B Rf4 d2 Kb8 Rg1 Nb7 Rh1 Rg6 Bh8 Rgg7 Qec3 Qf3 Kb2 Qd3 Re1 Bf1 Bf3 Be2 Na6+ Ka8 Rb1 Bf2 Qd4 Bh4 Qe3 Bf6 Rg1 Rf1 a1Q Rd4 Qad1 Rb8 Bh1 Rff4 Bf3 Rc8 Rh1 Rc7 Rf1 Nd8 Nb4+ Ra7 Qb3 Nb7 Qdc2 Rg8 Rb1 Rg5 Qd1 Rgg7 Qbc2
2b2r1b/1R2bp2/RNnN2Nk/2BBq3/2N1KbQ1/1Np2p2/2PR1b1n/3b2R1 w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 d5 h4 dxe4 h5 Ra6 g5 Rg6 hxg6 Bg7 Rh2 Bh6 Rh1 Bf8 Ke2 h5 d4 e5 b4 c5 g7 h4 d5 h3 b6 h2 d6 a4 g6 e3 Kd3 a3 b7 e2 b5 e1B d7+ Ke7 b6 Kf6 Be3 Kg5 Ne2 c4+ Ke4 c3 Nd2 a2 Bc5 Be7 Nd4 Nh6 g8N Qc7 d8R Ng4 g7 Bh4 Nc4 Nc6 Nh6 Rf8 Rg1 h1B+ Bg2 Nh2 b8N Bf6 g8N Bh8 b7 Qa5 Rb1 a1B Nd7 Bb2 b8R Bc1 Nhf5 Kg6 R1b6 Be7 Nfd6 Kh7 Kd5 e4 Nb3 e3 Qg4 e2 Ke4 e1B Ra6 Bf2 Rb7 Qc7 Ndb6 Qb8 Nf6+ Kh6 Nfd7 Bd2 Bf3 Bg2 Nde5 Bf1 Qd7 Be2 Ng6 Bd1 Qg4 Bc1 Kd3 Bce3 Bd5 f3 Ke4 Bf4 Nf5+ Kh7 Be6 Rg8 Rd2 Rf8 Bd5 Qd6 Kd3 Qf6 Nfd6 Kh6 Ke4 Qe5+
1nQN2KR/bp1n1n1N/kP2rB2/8/4ppB1/1nB1B2N/N1RqrnN1/2n5 w - - 0 1 illegal: No proof kernel
bRRB4/2nK1np1/p1BnR2r/3rb2N/2N2pP1/2NkN3/2N1n1n1/Q4Rb1 w - - 0 1 illegal: No proof kernel
1Q1NR3/1p1B1nbB/2B4B/Rbpn3n/K3N3/1P1qNnnN/pN4nr/k7 w - - 0 1 illegal: No proof kernel
1B2Qrn1/RBBp4/B1bN3N/N1bNN2p/3PK3/rn2n3/4pk1r/2Rbr3 w - - 0 1 legal: proof: b4 f5 c4 g5 e4 fxe4 a4 b5 axb5 c6 h4 gxh4 c5 Bg7 b6 Ba6 b5 Bc8 b7 Qb6 cxb6 Bf8 Ke2 Kf7 Ke3 Ke6 f4 Kd5 g4 e5 d4 a5 f5 h5 f6 a4 g5 a3 g6 c5 g7 h3 f7 a2 Nf3 c4 Nc3+ Kd6 Nd2 h2 Qe1 Na6 b8B+ Nc7 b7 Ra3 b6 Kc6 Qe2 Bc5 f8N Kd6 Rg1 h1B Ng6 Bf3 Nh4 Bg4 Qe1 Bd1 Nf5+ Ke6 Nh6 Nd5+ Kf2 Ne3 Nd5 c3 Nc4 c2 Nd6 Bb4 Bd2 c1N Ba6 Bc5 Ba5 Nb3 Rc1 a1R Qe2 Ng2 Re1 e3+ Kf3 R1a2 Ke4 Ne7 Rg1 Rf8 Qe1 e2 g8B+ Rf7 Bh7 Ng8 Rh1 Rf8 Rh3 Bb4 Rhc3 Rc2 Rc7 Bc5 Kd3 Bb4 Ne7 Bc5 Ba7 Rd2+ Kc3 e4 b8N e3 Bb1 Bb7 Be4 Kf6 Nbc6 Kg5 Kc4 Kf4 Kd5 Ba8 b7 Rc2 Qc3 Kg3 b8N e1R Rb7 Rd2 Bc7 Na1 Na5 Rf4 Nbc6 Bc2 Bab8 Nb3 Ra7 Bd1 Qc4 Bb7 Ke5 Ba8 Qe6 Rf8 Bd5 Rdf2 Ke4 e2 Ne5 Ne3 Qf7 Rh2 Qe8 Kf2 Bc6 Kg1 Nd5 Kf1 Bcb7 Kg1 Bc8 Bc6 Bcb7 Kf2
N1BRb1nk/1n2r3/pBbpB2r/2R2n2/RKr1B2b/1R2pb1Q/3P4/1B5N w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a3 gxh4 e5 Qa5 bxc5 b4 e6 Qb5 a4 fxe6 axb5 e5 Qg4 e4 Qh5+ Kd8 Qd1 Ke8 f4 Kf7 c4 Kg7 g4 e5 g5 h5 c6 h3 c7 h2 b6 e3 c5 b3 c6 e4 g6 e2 b7 b2 f5 h4 f6+ Kh6 f7 Kg7 Na3 b1R Nh3 a6 Nc4 d6 Nf2 h3 Ba3 Be7 f8R Rh6 Nb6 Bd7 c8B Bg5 c7 Ra7 Bc5 Rb2 Na8 Be3 Ra4 Bf5 Rd8 Kh8 Bb6 Rb4 Be6 Nd7 c8B Bg5 b8R Nc5 Qb3 Rc4 Bg2 Re7 Rb7 Bh4 g7+ Kh7 Rc7 Nb7 Rc5 Bg6 Rf1 h1B Rg1 h2 Qh3 Nf6 g8B+ Kh8 Bh7+ Ng8 Bf3 Be8 Rg3 Bg2 Bhf5 h1B Bh7 Bf1 Bg6 Bhg2 Nh1 Bc6 Kf2 e1N Ke3 Bd3 Bgf5 Bb1 Ke2 Nc2 Kd1 Ba2 Kc1 Be8 Kb2 Nd4 Ka3 Bb3 Bg6 Bd1 Bh7 Nf5 Bg6 Bf1 Bg2 Bg4 Rb3 e3 Be4 Bg2 Bb1 Bgc6 Bh7 Rc2 Kb4 Bgf3 Bg6 Ng7 Bd3 Nf5 Be4 Rc4+
3B3b/1QpR1rRB/B5bN/2P5/2n2RK1/1q1pB1Nn/1n1R1p1R/bkn1b3 w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 h5 e4 e5 g4 exd4 f4 hxg4 f5 Ra6 e5 Re6 fxe6 Ba6 Qd3 Bb7 Qd1 Bc8 Kf2 Ke7 Kg3 f5 h4 d5 b4 g5 c4 f4+ Kh2 f3 Kg3 d3 b6 a4 c5 d2 h5 a3 b7 a2 h6 d4 h7 Na6 b8R Bg7 b5 Nh6 b6 Qg8 b7 Nf7 Nh3 Nb4 Qb3 d1N Be3 Nd3 Nd2 Nc1 Nf2 Nd6 Rh2 Nb2 Ba6 d3 Nde4 Ndc4 Ra8 Bd7 b8R Be8 Rb4 Bg6 Rd8 Bf6 Rb1 a1B Ra4 Qf7 Qb7 Rf8 h8B Qg8 Bg7 Rf7 Bh6 Bh8 Rb4 Na2 Rg1 Nc1 Ra4 Qe8 Rd1 Qb5 Rd2 Qb6 Rg8 Qb3 Bf8+ Ke8 e7 Kd7 e8B+ Ke6 Rg7 Kf5 e6 Ke5 Bf4+ Kd4 e7 Bh5 Nf6 Kc3 Be3 Bg6 Nh1 f2 Rd1 Kc2 Ng8 Kb1 Bd7 Na5 e8R Nac4 Rgh7 Bc3 Nh6 Bd2 Rg7 Be1 Kg2 g3 Kh3 g2 Ng3 g1B Rd8 g4+ Kh4 Ba5 Be7 Bc3 Bf5 Be1 Nh1 g3 Kg4 g2 Ng3 Kc2 Rd7 Kb1 Rh3 Bh2 Bd8 g1N Rd2 Na5 Rf4 Nac4 Nf1 Bg3 Rh2 Nh3 Be4 Bh4 Ng3 Bf6 Rg8 Bh8 Rg7 Rf6 Bf5 Bf7 Bh7 Bg6 Rd1 Rf5 Rd2 Rf7
1R1B1K1b/r2prBNq/1PbRnpB1/1n4Q1/8/R2R1p2/p1nBk2N/2r4R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 h4 Ke4 b4 g5 h6 a5 b6 a4 b7 d3 h5 g4 h7 a3 b5 g3 h6 f3 b6 g2 Nh3 g1N Bd2 Qe7 Ng5+ Ke5 e4 Na6 b8R Qf6 Ne6 Nh3 Qc1 Bb7 Ng7 Kd6 e5+ Kc6 e6 Qg5 e7 Qa5 e8B Nf6 c3 Rg8 h8R Bc5 h7 Rf8 Rg8 Kd6 h8B Ng5 Bh3 Ke5 Bf5 Be4 Bg6 Nd5 Qg1 Ne6 Qg5+ Bf5 Ra2 Ke4 Ra1 Nab4 Ra2 Qa7 Kb5 Bg1 c4 Bd4 c5 Nc2 c6 Qb7 c7 Ra7 c8R Ndc7+ Kc4 Nb5 Rc6 Bg1 Rd6 Bd4 Rb2 a2 Rb3 Bb2 Ra8 Qb8 Ra3 Qd8 Rc8 Qf6 Rc5 Qe7 Rcd5 Nd8 Kc5 Bc3 Be1 d2 Rd3 d1R Bh4 Rc1 Nd2+ Ke5 Nf1 Ke4 Nh2 Ba1 Nh5 Bb2 Bc3 Ne6+ Kc4 Ba1 Bd2 Bh8 Ng7 f6 Bg3 Qd8 Bef7 Re8 Be5 Qa8 Bg3 Re7 Rb8 Nec7 Kc5 Qb7 Qh6 Qc8 Qh5 Qg8 Qg5 Qh7 Rc6 Nd5 Bc7 Nf4 Bd8 Nc7 Kd6 Nfe6 Rdb3 Kd4 Bc3+ Kd3 Bd2+ Ke2 Rd3 Be4 Ra4 Re8 Raa3 Rf8 Ke7 Nb5 Rcd6 Bc6 Bg8 Nf4 Bd5 Re8+ Kf7 Re4 Kf8 Re7 Bdf7 Ne6+
RB4n1/1pQ2r1b/3P3r/p1KN3R/RQ2Bp2/1Nb1R1b1/n1Rpr1qR/5k2 w - - 0 1 illegal: No proof kernel
4k2N/7B/n3B2B/Q1qb1BqR/1pRbKQ2/2Bn1p2/pPrrN1p1/3B1q2 w - - 0 1 illegal: No possible last move, all moves rejected
2R1RR1N/1kr5/R4brN/3n1bBp/N1P1p1pp/1B1q3Q/4N2N/Kq2n1q1 w - - 0 1 illegal: No possible last move
r1BQ3r/R2q3n/NN3Bpp/3P1qN1/r2np2k/1R1b1p2/1R5b/1N3NRK w - - 0 1 illegal: No proof kernel
1nRNq3/6p1/1bq1B1P1/1bQ1q3/N3kNpQ/3NN1pK/R1B1pr2/nNr5 w - - 0 1 illegal: No possible last move, all moves rejected
1n1b2N1/q2p1k1q/n3R1bB/2Pr1B2/3nRBN1/r1pp2p1/1K4N1/1NB1Q1B1 w - - 0 1 illegal: No possible last move, all moves rejected
3rq1q1/pBB5/n3rnb1/3B1N2/1N1NPQR1/Np3Bb1/1pR2NpK/5kn1 w - - 0 1 illegal: No proof kernel
bnb2B2/1BQ1q3/6PB/br2p2p/2R1K3/pp3bNk/1BB1R2N/3rRRn1 w - - 0 1 illegal: No proof kernel
1k2N3/2n1N2b/3pp3/QPrR4/1N3p2/nb1N1Q2/b3RpKB/Nq1Bb1Nr w - - 0 1 illegal: No proof kernel
B1BN2n1/B2pR1b1/1K3QR1/R7/2kB1R2/pq4Nb/2ppP3/r1rr1rnR w - - 0 1 illegal: No proof kernel
5bnQ/3p1Q2/1k1rQP2/3bpNK1/4pB1n/3pN1R1/Bnr2qQ1/1QnR2Q1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Ke2 g5 c4 a5 f4 e6 b4 a4 h4 a3 h6 a2 h7 g4 b6 g3 b5 g2 b7 Ra4 b6 Ba3 f5 Qe7 h5 Kd8 h6 Ra5 f6 Qd6 c5 Ra7 c6 Ne7 c7+ Ke8 Bf4 Bb2 Nd2 Nd5 Nc4 Rg8 h8Q Nc6 b8Q Ncb4 h7 Ne7 b7 Qb6 Ne3 Nd3 Rh3 Ba3 Nf3 Nb2 Rg3 Ra6 Qg7 g1N+ Kf2 e5 h8Q Qc5 Bc4 d3 Nh4 Rd6 Nf5 Nf3 Qg1 Nh4 Rd1 a1N Ba2 Nb3 Qa7 Bb4 b8Q Nc1 Qa6 Qa7 Qbb6 Bb7 Qg4 Bd5 c8Q+ Kf7 Qcd8 Ke6 Qf8 Ba3 Qfg7 Rc8 Qh3 Bc5 Qhg2 Ng8 Qb3 Bb4 Qc2 Ba3 Qb1 Rc2+ Rd2 Bc4 Rf3 Rc6 Kg3 Ng6 Kg4 Bf8 Rd1 Nh4 Nf1 Kd5 Rg3 Qf2 Kg5 Kc5 Qf7 Bd5 N1e3 Re6 Qd6+ Kb5 Qde7 Rd6 Qee6 Kb6
NBK1nBN1/3N2pp/qr2p1R1/1nB1b1n1/r2n1pBP/2n1RNN1/5k2/7Q w - - 0 1 illegal: No proof kernel
3B4/p2r1kBN/1pq1np1p/1nQ2B1K/7B/PRrbRqB1/QB1N3n/2n5 w - - 0 1 illegal: No proof kernel
2N1bknB/B7/1rr2B2/1QN1qnqR/1nq1N2P/1BN5/4R1q1/R2K3b w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 d5 c4 a5 bxa5 h5 cxd5 b4 g4 hxg4 a6 e6 a4 Bc5 a5 Bb6 axb6 Rh3 a7 Rh8 b7 Nd7 b8Q Nxb8 f4 g5 d4 c5 f6 b3 f5 g3 d6 c4 d5 g4 Nf3 e5 Qe2 b2 Nfd2 c3 Qb5+ Nc6 Kd1 e4 Bc4 g2 Bb3 Rb8 a8N g1N Nb6 Bd7 Nc8 e3 h4 g3 Rh2 Rb7 Rg2 Ne2 f7+ Kf8 Rf2 Kg7 f8R Be8 d7 g2 d6 Rh6 Rf6 Qc7 d8B Ng3 d7 Nb4 Rc6 Qf4 Bb6 Qc4 Rc5 Rc6 Ba7 Rbb6 d8B Kf7 f6 g1Q+ Nf1 Qh2 Nfd2 Qg2 Rh5 Nf5 Be7 Kg6 f7 Kg7 f8N e2+ Ke1 c2 Nd7 Kf7 Nc5 Kg7 Nf1 Kf7 Ng3 Kg7 Bf4 Kf7 Be5 c1Q+ Bd1 Qe3 Bh8 Qg5 Bef6 Kf8 Nc3 b1B Rh7 Qh2 Rh5 Be4 Bb3 Bh1 Rg2 Qgg4 Rf2 Qg2 Kd2 Nd3 Kc2 e1Q Rd2 Qe3 Re2 Nb4+ Kd1 Qe5 Nge4 Qg5
1b2r1Q1/r7/2R1NB2/8/P1KNBnR1/1Bn1B1br/3N1RR1/r1qqr1bk w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Ke2 Kd7 Kd3 Kd6 a4 Ke5 f6 h5 f7 c5 d6 b5 g6 f3 g7 Kf4 g5 Kg3 d7 e5 g6 f2 Bb2 b3 Be2 Kg2 Nf3 f1R Bc3 e4+ Ke3 c4 Kd4 b2 d3 b4 Rh4 b3 Nfd2 e3 Kd5 Nf6+ Kd4 Nd5 g8B Nf4 g7 Bc5+ Ke5 Re1 f8R Ra7 d4 Na6 d5 Nc7 d6 Ncd5 Bd4 c3 Bd3 c2 Nf3 c1B Be4 e2 Nbd2 b1R Be3 b2 Qb3 Nc3 Rg4+ Kh1 Ra3 Qc7 d8B h4 Bf6 h3 Bgd5 h2 g8R Qd8 d7 Ra1 Ra2 b1Q Rc2 Bd6+ Kd4 Bb8 Kc4 Bb2 Rg2 Qc1 R8g4 Rg8 Rf7 Re8 Nd4 Ba3 Rf8 Bc5 Be6 Rf1 B6d5 e1B Rf7 Bg3 Be6 Qa5 d8N Re1 Rc7 Bb6 Rc6 Qh5 Bf7 Bc5 N8e6 Bb6 N2f3 Bc5 Rcf2 Bb6 Nd2 Bc5 Rg6 Qhd1 Rg4 Bcd6 Ng7 Nh5 Qb4 Bh4 Kd3 Bf4 Rf3 Bf2 Qa3 B4g3 Qf8 Bg1 Bb3 Nf4+ Kc4 Qb2 Nge6 Qbc2 Re2 Qcc1 Bf2 Kg2 Qg8 h1R Be3+ Bf2 Qf7 Rh3 Qh7 Kh1 Qg8 Bg1 Rg2 Bh4 Rff2 Bg3
3B3K/Nkq3n1/1rNQ4/rB1RPBrr/2bn2Rb/5R2/2n3R1/1N3qNr w - - 0 1 illegal: No possible last move
3N1N2/Bq1RRn2/bN4P1/3Bnq1N/4BQBk/b2r4/1RKr3q/3nq2r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 c5 Kd2 h5 g4 a5 b4 f5 g6 Kf6 g7 Kg5 b6 h4 b7 c4 e5 c3+ Kc2 h3 e6 a4 e7 h2 e8B a3 d6 a2 b5 Ne7 g8B Qd7 d5 Nec6 b6 Na7 Be2 Nac6 Nd2 f3 Bg6 f2 Nh3+ Kh4 g5 f1Q Nc4 f4 Qd2 f3 Nf4 f2 Bg4 Qe1 Rb1 f1Q Rb2 a1R Be4 R8a3 g6 R1a2 Nh5 Ne5 Rg1 Qc6 d7 h1N d8N Nbd7 b8Q Qb7 d6 Qf5 Bd5 Nf7 Qc7 Qe2 Re1 Nde5 d7 Nf2 Ne6 Nd1 d8N Be7 Nf8 Qh2 Re2 Rb3 Qb8 Ba3 Qd6 Qe7 b7 Qc7 b8R Ba6 Qf4 Qb7 Be3 Rh6 Nb6 Rh7 Kc1 c2 Rc8 Rd3 Rc7 Rb3 Kd2 Rh8 Rd7 c1Q+ Ke1 Qa1 Kd2 Rd3+ Kc2 Nc6 Qb4 Bb5 Bh1 Nf2 Na4 Qhg1 Nf6 Ba6 Ba7 Qaf1 Nb6 Nd1 Kc1 Qe1 Ree7 Nce5 Bhe4 Qgf2 Kb1 Qg2 Rb3 Re2 Rb2 Qh3 Qf1 Kg3 Qd2 Qg2 Kc1 Rh1 Nh5+ Kh4 Kc2 Qh2 Qf4 Rexd2+
3N3Q/1RBqR1n1/1N3knq/rNB3q1/2rbK1nN/4B3/nP4R1/b1R3q1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 Kf2 Ke7 e4 a5 d4 g5 h4 c5 d6+ Kf7 h5 c4 d7 a4 h6 a3 f6 c3 b6 c2 h7 a2 d5 Nc6 e5 Bc5+ Be3 c1N b7 Ra5 b8R Bd4 d6 Nh6 Rb7 Nf5 Rh2 Nce7 Nc3 Ng6 Rg2 Ng7 Nb5 Qc7 d8B Qd7 Be7 Rc8 h8B Rc4 Bd8 Ke6 f7 Kf5 Rb1 a1B f8N Na2 e6 Ke5 e7 Kf6 Bc7 g3+ Ke1 f2+ Kd2 f1Q e8R g4 Nf3 Qh1 Kd3 Qh5 Qh1 Qh6 Nh4 f3 Re7 f2 Ke4 f1N Re1 Nh2 Rc1 Qe8 d7 Qf7 Re2 g2 d8N g1Q Rec2 g3 Rg2 Ng4 Qh2 Rc3 Qh1 Be5 Bc5 Bd4 Qh2 Rc4 Nd7+ Kg5 Nb6 Kf6 Qh1 Qe8 Qh3 Qd7 Be5+ Kg5 Na8 Qh1 Rc2 Qc1 Rh2 g2 Bc7 g1Q Ng2 Qh5 Nb6 Nf5 Bhe5 Qh1 Bf4+ Kf6 Rc3 Rb4 Be3 Qcg1 Rc1 Qg5 Qh8+ Ng7 Rh3 Ra8 Rg3 Qhh6 Nh4 Rc4 Rg2 Ra5
r1n3Q1/1N2bn2/r3n1K1/1BqbR3/RP1b2pq/B2NqN2/2R1N3/3k1BR1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 h4 Kb4 d4 Kb3 h5 Kc2 b4 c5 g6 a5 g7 e5 h6 c4 b6 c3 f6 f3 f7 a4 d6 f2 b7 a3 d5 a2 d7 Qc7 Kf5 e4 d6 e3 h7 e2 Nf3 e1N Ba3 Na6 b8N Ra7 Kg6 Be7 d8N Bb7 f8Q Nc5 d7 Kd1 Na6 c2 Rg1 Ne6 Nc5 c1Q Nd3 Bd5 Nb7 Q7c5 d8R Ra6 Rc8 Q1e3 Rc6 Qcd4 Rc2 Qc5 Nd4 Nf3 Ne2 Nfg5 Qc8 Nf6 g8B Nd7 Bf7 Rf8 h8R Nb6 Be8 Nf7 Bb5 Re8 Qd8 Nc8 Rh5 Rf8 Re5 Rh8 Bh3+ f1Q Qg8 Qe1 Bf1 Qh4 Ng3 Qc1 Nd2 Qe3 Nf3 Qc5 Rb1 a1B Ne2 Bd4 Rbb2 Qe3 Ra2 Qhf2 Bc1 Qg3 Ra4 Qh4 Ba3 Nb6 Qg7 Rha8 Qg8 Nc8
2b2q2/p2R1R2/bk2rR1r/4N1BQ/Kn1bn1PB/6N1/N1N3R1/q3r1Bn w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g3 gxf4 Ra4 h5 Ra5 h4 Bg2 h3 Ra1 hxg2 d4 Kd7 Kd2 e5 Kc3 c5 Kb3 Kc7 h4 e4 d6+ Kb6 d7 e3 d5 e2 f6 e1R d6 c4+ Ka4 c3 b4 f3 f7 c2 h5 f2 h6 f1B h7 Bc4 Rh6 Qh4 d8R Qg4 d7+ Nf6 Nc3 Ba6 Ra2 Bd3 Nge2 g1Q Bg5 Rg8 h8N c1N Ng6 Be7 f8R Ne4 Rf7 Qf1 Ne5+ Bd6 Rhf6 Kc7 b6+ Kb7 b5 Qh4 g4 Nd2 Ng3 Ne4 Rg2 Rg6 Na2 Ne2 Qb3 Nc6 Qd5 Qh6 Qc5 Rc8 Qd5 Kb8 b7 Kc7 b8N Nb4 Nbc6 Qf8 Nd4 Bc5 Nc2 Bd4 Bh4 Rh6 b6+ Kb8 b7 Kc7 Bg5 Bdc4 Qb5 Be6 Qd5 Kb6 b8B Rc6 Bd6 Bf5 Bc5+ Kc7 Bh4 Re6 Bg5 Ba1 Bg1 Bd4 Re8 Kb6 Ree7 Nf4 Bh4 Nh3 Bg5 Nhf2 Bh4 Qc4 d8B+ Qc7 Rd7 Nh1 Be7 Qc4 Rg6 Qc5 Beg5 Qc3 Rgf6 Qa1 Rh7 Rc6 Qf7 Rd6 Qh5 Rc6 Rdf7 Bfc8 Rd7 Rd6 Rhf7 Re6
nR1r4/2NR2b1/nNB5/2r5/2BBN1k1/qn1p4/PB1Q1RK1/1bbr1nN1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 b5 hxg5 c5 d4 cxd4 b4 axb4 cxb5 Ra7 Bc4 Ra6 Bf1 Ra8 f4 Kf7 Kf2 d5 g4 h5 f6 Kg6 b6 e5 b7 d3 f7 b3 Bh3 b2 Kf3 d2 Bf1 e4+ Kg2 d4 Na3 b1N Nc4 h4 Rh2 e3 Bb2 e2 Nb6 e1B Bc4 Bg7 f8B Rh5 Bc5 Na6 b8R Qf8 Bd5 Qe7 Bc6 Nf6 Qe2 d1R Qd2 Ne8 f5+ Kf7 g6+ Kf6 g5+ Ke5 f6 Kf5 f7 h3+ Kf1 Nec7 f8N Kg4 Rf2 h2 Kg2 Bf5 Ne6 h1N Re8 Nb5 Nc7 Ng3 Rc8 Bc2 Rb8 d3 Bcd4 Qf8 Rd8 Qa3 Rd7 N1c3 Rb1 Rd8 Nc4 Nd5 Nb6 Bh6 g7 Nf1 g8B Bg7 g6 Re5 Ne8 Ndc7 Bc4 Na8 Nc7 Rh5 Qa5 Rc5 Qd2 Bf6 g7 Be5 g8N Bg7 Qe3 Bd2 Qe1 Bc1 Nf6+ Kg5 Ne4+ Kg4 Bf6 Nd4 Qd2 Nb3 Bbd4 Na5 Rb5 Bb1 Bb2 Rh8 Bfd4 Rb8 Na4 Rc8 Rb8 Nb3 Nb6 Rd8
1K1bBq2/QN2n2b/Nb1r3p/4q1q1/P1br2B1/2N5/N1R1BR2/B3k1nR w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 a4 e6 g4 b3 f4 Kb4 g6 b2 f6 h6 g7 d3 f5 d2 d6 Qe8 d7 Be7 d8N Qf8 f7 Ba6 Nc3 b1B f6 Bh7 Nb7 Bd8 g5 Ne7 Kd6 e5 g8B e4 g6 e3 g7 e2 Ra2 e1B Be2 Nbc6 Rc2 Nd4 Bb2 Bf2 Ba1 Nf3 Na2+ Kb3 Qf1 Bfb6 Qf2 b4 Qc5 d1Q+ Qd4 Qe8 f8R+ Bc4 Be6 Qf1 g8B Ra6 f7 Qc1 Bg4 Qg5 Qc5 Qb5 Qf2 Qbe5+ Kd7 Ba5 Qa7 Bab6 Nh3 Ng1 Nf2 Ba5 Ne4 Rd6+ Ke8 Bab6 Nec3 Rc6 Kd7 Rf6 Re8 Rf4 f8N Rd4+ Bd5 Rg8 Ne6 Rg6 Nc7 Re6 Rc1 Rc6 Rf1 Kc2 Rf2 Kd2 Na6 b3 Ref8 b2 R8f5 Re4 Bf7 b1Q Be8 Ke1 Rfh2 Qbc1 Rff2 Qcf4 Rhg2 Qf8 Rgh2 Ng8 Rhg2 Rd6+ Kc8 Red4 Kb8 Bf5 Rg3 Ne7 Rd3 Bce6 Rd2 Bc4 Rc2 Bh7
R1Bn2BB/K1N1Q1Np/qNq2qbR/1b1Bn1r1/7P/R4q1N/4k3/b3n3 w - - 0 1 legal: proof: f4 c5 g4 e5 a4 a5 d4 b5 axb5 f5 fxe5 cxd4 Bg2 f4 Bf1 Ra6 Bg2 Rf6 Bf1 Rf5 gxf5 Ba6 Ra3 Bb7 Ra1 Bc8 Kd2 Ke7 Kd3 d5 c4 g5 b4 g4 e4 a4 e6 Kd6 b6 Ke5 b5 g3 f6 f3 b7 a3 b6 g2 f7 a2 c5 f2 c6 Ne7 c7 Bh6 f8Q Na6 b8N Bg5 b7 Rg8 Qa4 Qe8 Na3 Ng6 e7 Bf5 c8B Nc7 Nh3 g1N Qa6 Ne6 Nb5 Qc6 e8N Nf3 Bg2 Bf6 Nbc7 Nd8 Bb2 Bh8 Ng7 Ne1+ Kd2 f1B Qe8+ Kd6 e5+ Kc5 e6 d3 Kc3 d2 e7 d1Q Qf7 Qh5 e8B d4+ Kb3 d3 Bd5 d2 Qe7+ Qd6 Ka4 d1Q+ Ka5 Ne5 Bg6 Bb5 Bgf7 Qhf3 Bc3 Bg6 Bb2 Rf8 Bg8 Rf5 Bc3 Rg5 Bb2 Nd7 Bf6 Ne5 Nd7+ Kd4 b8R Kd3 Nb6 Qc6 Ra8 Qe8 Nc4 Qc1 Kb6 Ke2 Ka7 Qf7 Nb6 Qc6 Rd1 a1Q Rd3 Qa4 Ra3 Qfe6 Rg1 Qcd7 Rg4 Qdc6 Rh4 Ng4 Bd4 Ne5 Rh6 Qed6 Nf2 Qe6 h4 Qef6 Nh3 Qf8 Qb4 Nd7 Nh5 Q8f4 Qe7+ Be5 Be3 Ba1 Bd4+ Qe5 Bc3 Qee6 Bf6 Ne5 Bh8 Qef6 Ng7 Qxa6+
k4b2/qNPB1rp1/1rr2RNq/5B1B/1rR1Nr2/NnQ1q1B1/8/3KR2q w - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 h5 gxh5 cxd4 Bh6 d3 Be3 Ra3 Bc1 Ra8 f3 e5 Bh6 d5 Bd2 d4 Bc1 Be6 f4 Bd5 exd5 e4 Qg4 Nc6 Qd1 Ne5 fxe5 Qd7 Qd2 Qd6 Qd1 Qd8 a4 Kd7 c4 Kc8 h4 Kb8 a5 f5 c5 b5 a6 b3 h6 f4 h5 b2 d6 e3 d7 e2 c6 b4 e6 b3 a7+ Kc7 e7 f3 e8B Nf6 h7 Qe7 d8N Ne4 h6 Nd2 Bd7 Rc8 a8B Kb8 Na3 b1R Nb7 b2 Nh3 Nb3 Nf2 Rc7 Ne4 d2+ Kf2 d3 Qe1 d1Q Qc3 d2 Bfh3 Qc2 Rf1 d1Q Bf4 Qcc1 Bhf5 Qcd2 Bg3 e1Q+ Kg1 Rg8 h8N f2+ Kg2 Qd1e2 h7 Qh6 Ng6 Qee3 h8R Q1c1 Re1 f1R Ra2 Rf4 Ra1 Qhg5 Rh4 Qh6 Rf1 Qa7 Rf3 Qce3 Rf2 Rf1 Re1 b1R Rf3 Rf2+ Kg1 Rc2+ Kf1 Rcc1 Rg4 Qg1+ Ke2 Qgh1 Qa1 Rc4 Qc3 Rb4 Rf2 Rb2+ Kd1 Qe8 Bde6 Rf7 Bd7 Qe3 Rff1 Ka7 Rf2 Qb8 c7 Rh8 Rd2 Rc2 Rd6 Rg8 Rf6 Rb6 Qd3 Rcc6 Qc3 Rb4 Nf2 Rfc4 Rd4 Ra6 Nd6 Be7 Bae4 Rac6 Bd5 Ka8 Bf3 Qa7 Bh5 Rgb8 Rf4 R8b6 Nb7 Bf8 Rg4 Rf4 Rh4 Rf3 Rc4 Rf4 Ne4 Qa4 Nbc5 Qa5 Nb7 Qa7
2BNqr2/2N3p1/br4RB/3bRRb1/1b3Pqb/4R2K/B1N2k1b/Q3bN2 w - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 h5 e3 hxg4 Nf3 b5 axb5 f5 Ng1 f4 Ra6 f3 Ra5 Nc6 Ra1 Nb8 Nc3 e5 Qe2 e4 Qd1 Nf6 Nb1 Nc6 Ra4 Ne7 Ra3 Nh5 Ra1 Nf4 exf4 e3 Bh3 e2 Bg2 Nf5 Bf1 Ne3 fxe3 Bd7 Kf2 Bc8 Kg3 Kd7 h4 Ke6 d4 Kd5 b4 Ke4 d5 c5 h5 a5 b6 c3 h6 f2 b7 e1B b8N a4 d6 c2 b5 c4 b6 c3 h7 a3 d7 a2 b7 Qc7 d8N Qd7 Bc4 Ba3 Na6 Re8 h8R Re7 b8R Re8 Bb2 c1Q R8h6 c2 Nc7 Beb4 R1h5 f1B Bf6 Ba6 Rbb5 Qf5 Nf3 Re6 Bg5 Bg2 Nh2 Rb6 Rg6 Bf3 Kh4 g3 Nf1 g2 Bh6 g1B Qe1 Bh1 Re5+ Kf3 e4 Bh2 Bb3 Qf8 Kh3 Qd1 Rhf5 c1B Be6 Qg8 Bc8 Qe8 Qc3+ Ke2 Qd4 Bab2 Na3 Bcd2 Nc2 Be1 Rb1 B2a3 Rb3 a1B Re3+ Kf2 Qb2 Rab8 Qc1 Bd4 Qa1 Bab2 Ree6 Bdc5 e5 Bd5 Re7 Qe2 e6 Bf6 Ree5 Bg5 Re3 Qg8 Re8 Bd4 e7 Bdf6 Be6 Bdb7 Nc6 Bh4 Bd7 Rd8 Bc8 Rd6 Nd8 Bd5 Rf8 Rdc6 Rfe5 Bfg5 Rff5 Rf6 e8B Ba8 Bed7 Qe8 Bb5 Bd5 Bc4 Rf8 Ba2 Qg4+
1b1NrB2/NN1q1q2/Rbq1n2K/8/ppR2n1Q/k5P1/1n4r1/1RBN1BB1 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 d5 h4 g5 c4 gxh4 cxd5 Ba6 Bd3 cxb4 Bf1 b3 Nh3 b4 Ng1 Bb5 axb5 Bh6 Bd3 Bg7 Bf1 Bf8 Ke2 Kd7 Ke3 h5 Kf4 a5 Kg5 e5+ f6 b2 f4 e4 d4 e3 b6 h3 d6 Kc6 g3 e2 d7 Kb5 f5 h2 d5 h4 d6 h3 b7 Ne7 f7 Nd5+ f6 Na6 b8B Nf4 Be3 Nc7 Bba7 a4 Nc3+ Kc4 Nf3 b1N Bc1 Na3 Qd4+ Kb3 Nd1 e1B Ne5 Nc4 Rb1+ Nb2 Nc6 Bf2 Bb6 Ka3 Na7 Qc8 d8N Qd7 Nb7 Re8 Qc4 Be7 f8B Bd4 Rg1 h1Q Rg2 h2 Rc2 Be5 Bg1 Qd5 Qe4 h1Q Rc4 Qf3 Qd4 Q7c6 d7 Rh2 d8N Bc5 f7 Rg2 Qe4 Bed6+ Kh6 Bb6 Qe7 Nce6 Qh4 Re7 Bg7 Qd4 f8R Bb8 Rf6 Qdd7 Bf8 Qb3 Rf5 Qbf3 Ra5 Re8 Ra6 Qfd5 Bd2 Qf7 Bc1 Qdd7
1n1K1NNB/QR3Pq1/nBB3q1/2pr2NR/1qbB2pb/1k5N/R3r3/6n1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 g5 f4 b3 d4+ Kb4 h4 c5 b6 e6 d6 b2 h5 g3 f6 g4 b7 g2 f5 Qc7 h6 Bg7 d5 Ra7 h7 Ra8 Nc3 b1Q Bb5 Qb3 Bc6 Qc2 Be3 Ne7 Bd4 Bf8 f7 Qd3 Kf6 e5 d7 e4 d8N e3 d6 e2 d7 e1Q Ne6 Qd6 d8B Ng6 Ne4 Ne5 Rh5 Qdc3 Ra2 Nd3 Qa1 Kb3 Bb6 Nb4 Nh3 Bh6 f8N g1N Kf7 Bg5 Ke8 N4a6 f6 Bh4 N6g5 Be6 f7 Rg8 h8B Bc4 Re2 Qe6+ Kd8 Qg6 Ra2 Qb4 Nf6 Qe5 Nfe4 Qeg7 Nf6 Nd7+ b8R Ra7 Rc8 Ndb8 Rc7 Rb7 Rc8 Re7 Rc7 Re2 Rb7 Q7h6 Qc1 Rg7 Ng8 Rh7 Qf4 Qhg7 Qc7 Rh6 Be3 Qb1 Qd7 Rd6 Bf2 Qbg6 Bd4 Rf6 Qe7 Rf5 Qc7 Nd7 Qb8 Rd5 Qa7 Ndb8+
1R2nN2/kP1N3K/3p1pN1/3B1BNQ/1R4bB/2qrr2b/1nR1qR2/2q1n3 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 Nh6 f5 Ng8 f6 exf6 g4 Be7 g5 Bf8 h4 Bd6 g6 Bf8 gxf7+ Ke7 Bg2 g5 Bf1 g4 Ra6 Bh6 Ra1 Bg5 hxg5 Ke6 Be3 Kd6 Bc1 Ke7 Kd2 Kd6 Kd3 Kc7 Ke4 Kb6 Kf5 a5 f8N h5 Kg6 h4 c4 d6 b4 h3 e4 a4 c5+ Ka7 c6 a3 e5 h2 c7 d3 e6 a2 e7 g3 e8R d2 b6+ Kb7 b5 g2 Qh5 d1N Na3 Ne3 Rb1 a1Q Rb4 Qc3 Nc4 Nc2 Bd3 Ra1 Ne5 Qe7 Ngf3 g1Q Bf5 Ne1 Bd2 Bd7 c8R Nh6 Rc7+ Ka8 b7+ Ka7 Rd8 Na6 Rb8 Qge3 Rf1 h1B Rf2 Ra3 Bc1 Nc5 b6+ Ka6 Bd2 Na4 Rcc4 Qc1 Rc2 Qc3 Bf4 Qe6 Bg3 Nb2 Bh4 Bg2 Kg7 Rb3 g6 Bh3 Ng5 Rg8+ Kh7 Ra3 Nc4 Qe2 g7 Bc8 Ne5 Bd7 Be4 Bdg4 Neg6 Nf5 Bd5 Ne3 Be4 Nd5 Bf5 Rb3 Nd7 Re8 g8B Re5 Ndf8 Nc7 Bd5 Re4 Re8 Re3 b8N+ Ka5 Rc8 Ne8 Nbd7 Ka6 b7 Ka7 Rd8 Qcc4 Rc8 Rbd3 Rb8 Qc3
B6B/bN2n1R1/1N1rqB1B/1n1P4/1nn3R1/1qpk1K1p/q5R1/4QRrN w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kd6 e4 f5 Ke2 h5 e5+ Ke7 b6 a5 d6+ Ke6 b7 Kd5 e6 Kc4 e7 c5 e8R f4 g5 a4 b5 h4 d7 a3 g6 h3 b6 a2 g7 Qf6 d8N Rh6 Nc3 Nc6 b8B Nge7 g8R Nb4 b7 Qe6+ Be5 Ra4 Rb1 a1Q b8B Qa2+ Rb2 Rg6 d5 Ra6 Nb7 Rd6 Qe1 f3+ Ke3+ Nd3 Ke4 f2 Nge2 g1Q Na4 g2 Rg7 Nb4 Kf3 Kd3 Bh6 c4 Bf6 c3 Nb6 Qb3 Rc8 Qh2 Rc4 Rg5 Rg4 Rg6 Rf7 Rg5 Bh8 Bg7 Bc7 Bd4 Rg7 Rg6 Bd8 Bc5 Na8 Ba7 Rg1 Qhe5 Ng3+ Qe2+ Kf4 Rg5 Nb6 Rg6 Rh1 g1N Rc2 Nf3 Ra2 Nec6 Bf6 Nfd4 Rg1 Nb5 Nh1 Ne7 R1g2 Rg5 Ra1 Kc2 Kg3 Qd2 Be2 f1N+ Kf3 Ne3 Bd1+ Kd3 Rc1 Qc4 Ba4 Qb3 Rb1 Nc4 Ra1 Nba3 Bc6 Qda2 Na5 Qbb2 Ba8 Nb5 Nb7 Qab3 Qg3 Q3a2 Rf1 Qbb3 Qe1 Nc7 Rb2 Qc2 Rf4 Rg1 Rfg4 Qcb3 Rbg2 Nb5
4r1bR/N2N1P1R/1pB2R2/N4Q2/1qBk1nrB/8/p1Kr1bqq/4RrN1 w - - 0 1 legal: proof: b4 d5 h4 f5 e4 g5 exf5 gxh4 c4 b6 cxd5 Bd7 b5 Bc8 a4 Nd7 a5 Nc5 a6 Nb7 axb7 c6 Qb3 cxb5 Qd1 b4 b8N Kf7 g4 Kf6 d4 a5 Kd2 e5 f4 h5 d6 a4 d5 b3 d7 h3 d6 h2 Kd3 b2 Qc2 a3 Nd2 b1R Nc4 a2 Na5 h4 Bg2 h3 Bc6 Qc7 d8R Rb4 d7 e4+ Kc3 e3 g5+ Kg7 g6 Kf6 g7 e2 Rb1 Ne7 g8B Ng6 Bc4 e1Q+ Bd2 Qh4 Be1 Bc5 Qe4 Ba6 Kc2 Bf2 Qd5 Rh7 Rh8 Bc8 d8N Be6 Ra1 Bg8 Qf3 Rd7 Qd5 Rd6 Nd7+ Ke7 Qf3 Rd4 f6+ Kd6 f5 Nf4 f7 Rd2+ Kc1 Rc8 f8R Qb8 f6 Qa8 Nb8 Kc5 Nd7+ Kd4 Qg4 Qb8 Qf5 Ra4 Rb1 Qd6 Rf7 Qb4 Rfh7 Qg4 f7 Qg2 Rh6 Ra8 Rf6 Rb8 Ndb7 Re8 Nd6 Ra3 Ra1 Rg3 Nc8 Rg4 Na7 Be3 Bh4 Bf2 Nf3+ Ke3 Rd1 h1Q Ng1 h2 Re1+ Kd4 Rh7 Qh3 Rb1 Q1g2 Rb3 h1R Rc3 Rd1+ Kc2 Qhh2 Rh3 Rd3 Rh8 Rd1 Bg3 Rd3 R3h7 Rd1 Bh4 Rd3 Nh3 Rf1 Ng1 Rd2+
qN6/2B2p1N/1r1NPB2/r7/1n3R1Q/p2RR2b/1BkbKNq1/1qqbB3 w - - 0 1 illegal: No possible last move
1B6/1N2pRNn/p2B1R1n/nb4BP/r2Nk1qB/Q5r1/3R2RK/1r4rq w - - 0 1 illegal: No possible last move
1k1n4/5rp1/2RNb1R1/NB2r1Pp/1B2rq2/5p2/n3BKNn/QbBR2R1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 b4 a5 Qb3 a4 Qd1 Bc5 h4 Bb6 h5 Ba5 bxa5 Qg5 Ra2 Qxh5 Ra1 Qh2 d4 Kd8 g4 h5 e4 c5 b6 f5 e5 c4 g5 a3 a6 f3 b7 Kc7 e6 f4 e7 c3 e8B a2 d6+ Kd8 d7 Kc7 d8R c2 a7 Bh3 d5 Bg2 d6+ Kb6 d7 Kc7 Na3 Nc6 b8N Nh6 Be2 Ng4 Nh3 Rf8 Rg1 Rf7 Nb5+ Kb7 Rb1 a1R Rc8 Ra4 d8B Re4 Ba5 Nd8 Bb4 Re5 Rc6 f2+ Kd2 f1B Ke1 f3 Nf4 Bh3 Ng2 Qf4 Bd7 Nh2 Kf2 Bg4 Qd4 Be6 Qa1 Bd5 Rg6 Bb3 Nc6 Be6 Nd6+ Kc7 Na5 Rc8 Bd1 Bd3 a8R Bdf5 Ra6 Kb8 Be8 Rc4 Bb5 Bd3 Rc6 Rce4 Be3 c1N Be2 Na2 Rbd1 Bc2 Bc1 Bb1
1B1q1Nb1/1PQ5/2p1pnR1/2K1N1p1/r5Br/4krqR/5N1B/B2nb1RR w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Kd3 Kd6 Kd4 g5 h4 c6 f4 e6 f6 g3 f7 b3 b6 b2 b7 g2 f5 Rh6 f6 Ra7 h5 Bd7 Na3 b1R Be2 Rh7 h6 Rb2 Nh3 g1Q+ Nf2 Ne7 Nc4+ Kc7 Bg4 Bc8 d6+ Kd7 Kc5 Nf5 d4 Rb4 d5 Rh8 h7 Ne3 Bb2 Be7 f8R Qc7 f7 Ra8 Rg8 Rb3 Rg6 Ra4 Qc2 Qh2 Rag1 Qd8 Ba1 Qg3 Qe4 Rd3 Qe5 Nd1 Rh3 Rf3 f8N+ Ke8 Rhh1 Kf7 Qf4+ Bf6 d7 Ke7 Rh3 Bc3 Qc7 Be1 Rhh1 Kf7 Ne5+ Ke7 Rg8 Kf6 d6 Qe7 d8B Bd7 Rh3 Be8 Rg7 Rg8 h8R Bf7 R8h4 Rh8 Rhh1 Bg8 R4h3 Bh7 Qc8 Bg8 Bc7 Qd8 d7 Rh4 Bd6 Qc7 d8B+ Qe7 Bc7 Qd8 Bh5 Kf5 Rg6 Kf4 Bg4 Ra8 Bb6 Ra6 Ba7 Ke3 Qc7 Ra4 Nf7 Qg2 Bh2 Qg3 Ne5 Nd7+ Kd6+ Kf4 Bb8 Nf6+ Kc5 Ke3
k2N1BK1/B1n4B/2npp3/1rQp2Bn/2R1NP2/r1R2Rr1/r1q5/N1b3N1 w - - 0 1 legal: proof: d4 f5 a4 g5 d5 b5 axb5 f4 e3 c6 exf4 cxd5 f3 g4 h3 gxf3 g4 Na6 g5 Nb8 b6 Ba6 Ra2 Bd3 Ra6 Bf5 Ra1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Rh3 a5 Kf2 a4 Kg3 f2 Kh4 h6 Kh5 a3 Kg6 a2 c4 h5 b4 h4 b5 Rh5 c5 Bh6 Kh7 Nc6 g6 Rc8 g5 Qc7 b7 Kd8 b8B Nd4 b6 e6 c6 Nb5 g7 Na3 b7 Qa5 c7+ Ke7 Nd2 Kd6 g6 Kc6 Nb3 Ne7 Bd3 f1R g8N Qc5 g7 Rf8 Qc2 Rg5 Nf6 Rf3 g8N Bg7 Bb2 Nb5 Rf1 a1R Ba7 Rb8 Nh6 Ra2 Nf7 d6 Na1 Re3 Bg6 Rf3 Ne4 Rfa3 Be5 Bh8 Bg7 Rg4 Re3 h3 Rff3 h2 Bf8 h1N Rd3 Ng3 c8R+ Nc7 Rb3 Nh5 Bf5 Bb2 Nd8+ Kd7 Qf2 Qc2 Rbc3 Ne8 R8c4 Nc6 Qc5 Kc7 Bg6 Bc1 Kg8 Rh4 Bh7 Rh2 Qb4 Rh3 Bd4 Rg3+ Bdg7 Rba8 Qc5 R8a5 b8B+ Kc8 Be7 Nc7 Ba7 Rb5 Bf6 Na5 Bg5 Nc6 Nf7 Kb7 Nd8+ Ka8 B7h6 Rab2 Bf8 Rba2
3kbR1K/1pb4p/1Q2q2R/1np1BN1R/BN3NP1/4n3/2B1b3/bnR3Nq w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 h3 g5 Bb2 f4 Qc2 Nf6 Bc1 Ra6 Qb3 Re6 Qd1 Re5 Kf2 Rf5 Ke1 Rg8 gxf5 g4 Bg2 g3 Bf1 Rg4 hxg4 Qe7 Rh3 Qd6 Rh1 Qd8 d4 c5 Kd2 b3 Kd3 g2 e4 f2 a4 b2 a5 f3 e5 Bg7 a6 Ne4 f6 Bd7 a7 Qc8 a8R Qc7 f7+ Ke7 f8R Qc6 d6+ Ke6 Nc3 b1N Bb2 Qc7 Nce2 Nbc3 R8a6 Nb5 Rc1 Bh6 Ng3 Qa5 Rh5 Qe1 Nf5 Na3 Qb3+ Nc4 Qb6 Bb5 d7+ Bc6 d8N+ Kd7 e6+ Kc8 e7 Kd7 d5 Ned2 d6 Qe6 Be5 Bg7 e8B+ Kc8 Be2 Ne3 Bd1 Nb1 Bc2 Ba4 Ke4 f1Q Bb5 f2 Nc6+ Kd7 Nb4+ Nc6 Kf4 Qe1 Kg5 f1B Rh1 Be2 Rh5 Bf6+ Kh6 Bd8+ Kg7 Bc7 Kh8 Qh4 Rf7+ Kd8 d7 Na7 Bc6 Qh1 Rf6 Bb3 Ba4 Nb5 Rf8+ Qe8 Qa7 Bf7 Rah6 Bg6 Nf3 g1B Qb6 Bf2 Ng1 Bf7 Qg6 Be1 Qb6 Bc3 Nh4 Ke7 d8N Ba1 Ne6 Qc8 Nf4 Be8 Nf5+ Kd8 Rff6 Qd7 Rf8 Qe6
qb5R/p1NQ1BR1/2N5/Kb2p1B1/1bR1B1P1/R3b1kr/3pqqN1/Br6 w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 d4 cxd4 f5 b5 axb5 Nc6 f6 Nh6 h3 Nf5 gxf5 g4 Qd3 g3 Qf3 Ne5 Qd1 Ng4 hxg4 Qc7 Qf3 Qb6 Qd1 Qd8 Kd2 Kf7 b4 h5 c4 d5 b6 h4 b7 h3 b8N d3 Kc3 d2 b5 g2 Kb4 d4 c5 h2 b6 d3 c6 e3 c7 e2 b7 e1B Ka5 e6 Nf3 g1B Nh4 Qe7 Bg2 Bg7 Be4 Qd7 Nc6 Bef2 b8R Bd4 Nc3 Bf8 Rb4 Bge3 Rc4 Rb8 Nd5 Ba6 c8B Bb5 Ra3 Be5 Nc7 Qd4 Ng2 Rh3 Bb2 Bed6 Ba1 e5 Qa4 d1Q Bd7 d2 Be8+ Kg8 f7+ Kg7 f6+ Kh6 Rf1 Bfe7 f8R Kg5 f7 h1Q Rh8 Qe2 f8B Rb7 Rf7 Rb6 Nd5 Bb8 Nc7 Bc5 Rfh7 Bd6 Bf7 Rb7 Ne1 Kf4 Rg7 Kg3 Be7 Qhf3 Ng2 Qd5 Bd8 Qff2 Bg5 Rb6 Nd8 Qa8 Nc6 Ba6 Ne8 Rb1 Nc7 Bf8 Qb5 Bc5 Qb7 Bb5 Qc8 Bd6 Qd7 Bb4+
1r1nRR2/2NB2R1/1Qn1p1q1/1p1pKBRP/q1b5/3q3N/1kN1p1q1/4B2B w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 Bb5 h5 Bf1 c5 dxc5 h4 Be2 g5 Be3 b5 Qc1 Rh5 gxh5 g4 Kd2 g3 Ke1 g2 Bf1 Bg7 Qd1 Be5 Bc1 Bg3 hxg3 Ra6 Rh3 Rh6 Rh1 Rh8 Kd2 Kf7 Ke3 Ke6 Kd4 d5 a4 h3 f4 h2 c4 b3 g4 e3 g5 b2 f5+ Kf7 a5 e2 f6 Ke6 a6 Rh6 a7 Qd7 a8N Qb7 c6 Rh7 f7 Rg7 f8R Nd7 g6 Nh6 c5 Qc7 Bd2 Rf7 g7 Qa5 g8R Qd8 c7 Nb8 Na3 b1Q c6 Rg7 Rh8 Nf7 Nh3 Rg8 Rg1 h1Q Be1 Qh7 Nc2 Qd3+ Kc5 Ke5 Ra7 Be6 c8B Qa5 c7 Qa4 Bd7 Nc6 c8B Nfd8 Nc7 Bf5 Qd2 Qh2 Qa5 Qhg3 Qb6 Qg6 Re8 Be4 Bf5 e6 Bd7 Rf8 Ra8 Rg8 Rh7 Rh8 Rg7 Rf8 Rh1 Rg8 Rh2 g1Q+ Rf2 Qh2 Bg2 Rf8 Bh1 Qhg2 Bg4 Rg8 Rff8 Bf5 Nd4 Ke4 Kd6 Ke3 Ra7 Be4 Bf5 Rh8 Bh4 Kd2 Be1+ Kc1 Nc2 Kb2 Rgg8 Qd1 Rb7 Bd3 Ra7 Bc4 Rb7 Qf7 Rg5 Qg6 Ra7 Qd3 Rb7 Na7 Ke5 Nac6+ Kf4 Nf7 Reb8 Qa5 Rg8 Qa7 Ne8 Ne7 Bc6 Rh7 Rf8 Qa4 Rc7 Nd8 Ke5 Nb7 Rd7 Nc8 Rc7 Na7 Rbc8 Rd7 Rb8 Rd8 Rg7 Rc8 Bd7 Nc6+ Kf4 Rc7 Rd8 Rc8 Nc7 Rb8 Rde8 Nd4 Ke5 Nd8 Bf2 Qgf3 Bg3 Qg2 Be1 N4c6+
8/1q1Np1n1/2pkN2B/2rp1Rpb/4Bn2/1RBR2Kq/3Bp2P/N4RQb w - - 0 1 illegal: No possible last move
6BQ/B3RR2/1p3pq1/RNk1nKBr/q2p2p1/r1B2NNr/1p4P1/3b3N w - - 0 1 legal: proof: e4 d5 f4 c5 b4 h5 Qxh5 a5 e5 axb4 Qh3 e6 Qh7 Bd6 d3 Nc6 d4 cxd4 exd6 e5 Ne2 e4 Ng1 Ne5 fxe5 Qe7 Be3 Qf6 Bc1 Qd8 Ke2 Kd7 a4 Kc6 h4 g5 c4 d3+ Ke3 g4 Kf4 d2 e6 d1Q c5 e3 e7 b3 e8R e2 d7 e1R a5 b2 a6 Qe2 h5 Rd1 h6 Qe6 a7 Nf6 Be3 Qd6+ Kf5 Qb8 Nf3 Qb6 Nbd2 Qa5 Ne4 Rf8 Ng3 Re1 Bc4 Nh5 Rf1 Nf4 Nh1 Ng6 Qh8 Qa4 h7 Nf4 Re7 Qa6 Ra5 Qd6 Bg1 Re6 d8B Ng6 Be3 Bd7 Bd4 Rc8 a8N Ne5 Nc7 Ra8 Nb5 Be8 Bc3 Rh6 Bb6 d4 Ba7 b6 Ba2 Nc4 Bb3 Kd5 c6 Rh3 c7 Kc5 c8N Ne5 Ba2 Qh6 Ncd6 Bc6 Bc4 Bd5 Ba2 Bb3 Rf2 Bd1 Ne4+ Kc6 Neg3 Kc5 Qf6 Rfd8 h8B Rd5 Qh4 Qd6 Bf6 Qc6 Bg5 f6 Qh8 Qe8 Rf7 Qg8 Re2 Qg6+ Kf4 Nd7 Ree7 Rf5+ Ke4 Ne5 Bh4 Rh5+ Kf4 Qc8 Bg5 Qe6 Bb3 Qc4 Ba2 Qa4 Be6 Qg7 Kf5 Qg8 Bb3 Qg6+ Kf4 Qa2 Rf8 Be2 Ra6 Nc4 Bb8 Qh6 Kf5 Ne5 Bg8 Bd1 Rff7 Qg7 Ra4 Ra5 Ba7 Qb3 Rb4 Ra3 Ra4 Qb4 Ra6 Qa4 Ra5 Qg6+
4qr2/2p1Rr2/1BnKQNB1/4R2p/5p1r/NP2NpRN/p1B1k2n/1B3n2 w - - 0 1 illegal: Other
BB1BNb1k/5b1n/Q4rbr/7b/rqR1N2N/1n2NP2/R3R1qK/2n2b1R w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 b4 Kg7 g4 a5 c5 e5 c6 d5 c7 h5 g5 h3 b6 a4 b5 a3 b7 d3 b6 a2 g6 d4 Nd2 h4 Ndf3 d2+ Ke2 d3+ Ke3 e4 Kf4 h2 Qa4 d1B Kg4 h3 Kg3 d2 Ng5 e3 N1f3 e2 Bg2 e1R Nh4 Be6 c8N Na6 b8R Qe7 b7 Bh5 Nd6 d1B Nge4 Bde2 Bg5 Rf1 Nc4 Rh6 f6+ Kh8 f7 Nf6 Re8 Qb4 b8B Nc5 Ne3 Nh7 Qa6 Nb3 Bd8 Bd5 Rc1 a1N Rc4 Nc1 Re5 Be6 Ra5 Nab3 Ra2 Bg7 f8N Bf7 Nd7 Bf8 Ndf6 Bd3 Ne8 Bc2 Rg1 h1B Kh2 Bd3 Bf3 Bg2 Rh1 Bb1 Qb5 Ra4 Qa6 Rd1 Re2 Rd6 Ra2 Rf6 g7+ Kg8 Ng5 Bf5 Ba8 Bf5g6 f3 Bf1 Ne4 Ng5 Kg3 Kh7 g8R h2 Rg7+ Kh8 Re2 Nh7 Ra2 Bg8 Rd7 Be6 Rdd2 Bef7 Re2 Bg2 Rg1 h1Q Rge1 Qf1 Kh2 Qf2 Rh1 Bf1+ Neg2 Qfe1 Ne3 Qed2 Neg2 Qg5 Ne3 Qg2+
Nk5N/nr2qQ2/n5K1/bq2q1R1/1RP5/BBn3n1/3B1RrN/Rbn2r1B w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 e5 Ke4 h5 f4 d5+ Kd3 Kd7 g4 Kc7 b4 a4 g5 h3 f6 h2 g6 a3 f7 h4 c3 h3 g7 a2 f5 Ra7 f6 Na6 b6+ Kb8 b7 Ne7 g8B Nc6 b5 Bb4 f8B Ba5 f7 Qe7 Bg2 Bf5+ Be4 Rh6 Qf1 Rg6 Na3 Rg2 Nf3 Bg6 Rg1 h1R Nc4 h2 Bd2 Bh7 Rd1 a1N Nb6 Nb3 Ra1 Bf5 Na8 Nc1+ Kc2 Bg6 Qc4 Bh7 Rf1 Bg6 Rf2 Rf1 Qb3 h1N Nh2 Ng3 Qc4 Qe6 Ba3 Qe7 f8N Bh7 Ng6 d3+ Kb1 d4 Nh8 Bf5 Qf7 Bg6 Bd5 e4 Bb3 e3 c4 e2 Bh7 Bh5 Be4 e1Q Bf3 Q1e5 Be4 Rgg1 Bh1 Rg2 Kb2 Bg6 Kb1 Nc7 Kb2 Ra6 Kb1 Rb6 Kb2 Na6 Kb1 Ka7 b8R Rb7 Rg8 Bf5 Rg5 Kb8 b6 Na7 Be3 d2+ Kb2 d1Q Bd2 Rc7 b7 d3+ Kb1 Qb5 Kb2 Qde1 Kb1 Nb4 Kb2 Q1e6 Kc3 Na6+ Kd4 Be4 Ke3 Qed5 Kf4 Qde5+ Kg4 Bh7 Bf4 d2 Kh4 d1N Bd2 Nge2 Kh5 Ndc3 Kh6 Bb1 Kh5 Ba2 Kg6 Bb1+ Rf5 Ng3 Qf6 Qbc5 Qf7 Rd7 Nb6 Kc7 b8R Qcd5 Rb7+ Kd8 Na8 Kc8 Rb4 Rb7 Nc7 Qb5 Na8 Nce4 Rf6 Kb8 Rf2 Nc3+
kN2R1qn/nbPRN2n/r7/b3RK2/r6B/3n2qB/q1nN3r/1B1BQN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kh4 Kb7 g4 f5 c4 a5 b4 h5 e4 a4 e5 d3 b6 f3 c5 a3 b5 a2 e6 f4 e7 f2 e8B d2 Bb2 d4 Bc3 f3 Bd7 d3 Bf5 Nd7 Qc1 d1Q Bg7 d2 Ne2 Ne5 Bh3 f1R Bf6 f2 g6 Qb3 Kg5 d1N g7 h4 Ng3 Ng6 Nd2 Ra4 c6+ Ka8 c7 Bb4 Bb1 Nc3 Qe1 Bb7 Kf5 Ba5 g5 Qa3 Be7 Nf6 g8B Nh7 Bb3 Qg8 Bd1 Rg1 Rh2 f1N Re2 Rh1 Re5 Rh2 Bhg4 h3 Bf6 Nf4 g6 Qd6 g7 Ng6 Bh4 Qa3 Be4 Qab3 Rc1 a1Q Bb1 Qaa2 Rc2 Nhf8 Rc1 Rh6 Rc2 Nh7 Rc1 Qgc4 g8N Nh8 Ne7 Qg8 Rc2 Re2 Rb2 h2 Bh3 h1N Rc2 Nf2 Rb2 Nh2 Ngf1 Nhg4 Rc2 Nd3 Rc1 Nd5 Rc6 Rg2 Rd6 Rh2 Rd7 N5b4 Qg3 Bf3 Qe1 Nc6 b7+ Ka7 b8N Ka8 b6 Na7 Bg5 Bb7 Bf6 Qba3 Bh4 Qd6 Re6 Qg3 Re5 Rg6 Nd5 Nc6 Na6 Bc8 b7+ Ka7 b8R Bb7 Rc8 Rh6 Nb8 Ka8 Qf2 Na7 Ne7 Ra6 Re8 Ngf6 Rb5 Nd5 Qe1 N5b4 Re5 Nc2
3bb2b/b2kqR2/K1brnbRr/1Q4R1/4BR2/2nnNPB1/1Bb2NBN/8 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 h5 d4 e5 g4 a5 b4 c5 b6 a4 d6 c4 b7 c3 b5 a3 d7+ Ke7 d5 h3 g5 c2 g6 a2 g7 e3 Kd3 e2 Kc4 e1B b6 h2 Kb5 e4 Qe2 h4 Nf3 h3 Bb2 c1N Nbd2 e3 Bg2 Rh6 Ne4 Nf6 g8B Ra6 Bh7 Bg7 Rg1 h1B Nh2 Nc6 b8N Bh8 b7 Nd3 d6+ Ke6 Rc1 a1B Rc5 Qe7 d8R Ba5 d7 Nd5 Rf8 Nd8 Rf7 Rd6 Nc6 Nc3+ Ka6 Bf6 Qf1 e2 Rg5 e1B Qe2 Bb6 Nb4 Bd2 Rg6 Bg5 Nd5 Bh4 Ne3 Ba7+ Ka5 Bg5 b8B Bb7 Qh5 Bc6 Ka6 Bh4 Qb5 Bg5 Bf1 Bf3 Rg3 Bd1 Bg2 Bh4 R3g5 Bc2 Nf3 h2 Bc7 h1B Nh2 Rd4 Be5 Rd6 Bg3 Nb7 d8R Nbc5+ Ka5 Be8 Rc8 Nd7 Rc4 Nf8 Rb4 Bc6 Ka6 Kd7 Bf1 Bf3 Bg2 Bh5 f3 Ne6 Nf2 Bh8 Rgg7 Bg6 Rbf4 Bh5 Be4 Bg6 R7f5 Be8 R5g6 Bg5 Rgf7 Bgf6 Bc1 Bb2 Rfg5 Ba3 Bb2 B3c5 Nf5 Bcb6 Ne3 Bd8
B1rk1rbN/1K1qr1n1/1P1B1N2/4b2q/Nb1n4/1qn1BB2/QqN5/2RR2R1 w - - 0 1 illegal: No possible last move, all moves rejected
1BbBr3/nnR5/1br1N3/k5br/1NrPb1R1/KB2N1q1/5Qb1/R1rB2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 g4 c5 e4 Kc7 d6+ Kb6 d7 c4+ Ka2 c3 b4 c2 g5 a4 e5 h3 e6 a3 e7 h4 e8N h2 g6 f3 g7 f4 Qd3 h3 Be2 f2 Qd2 f1B Nc7 f3 Ne6 f2 Qd1 Ra6 Bf4 c1B Bh5 Bc5 Bf3 Nc6 Bb8 Na5 Qe1 Qc7 d8B Nb7 Nc3 Ne7 g8B Bg5 Nd1 Bg2 Ne3 f1R Qf2 Rc1 Bd1 Nc6 Kb3 a2 Bf7 Nba5+ Ka3 Rc4 Rc1 Na7 Rc3 Kb7 b6 Qg3 Rc2 Kc6 b7 Bb6 Rc1 Re8 b5+ Kd7 Be5 Be4 b8R Bg2 Ra8 Be4 Bb8 a1R+ Qa2 Rb1 Qf2 Bg2 Rc2 Rc1 Bg8 Bc7 b6 Kc6 b7 Kb5 Bf7 Bb6 Rc3 Rb4 Rc7 Rbc4 Ne2 Be4 Rg1 h1B Rg2 h2 Ng1 Qf4 Rg4 Qg3 Bg6 Beg2 Bgc2 Be4 Bb3 Bhg2 Bf6 h1R Bd8 N7c6 Ba7 Rh5 b8N Ne7 Nc6 Nb7+ Na5 Nc6 Bb8 Nd6 Kb2 Na7 Nc6 Nb7 Nb4 Ka5 Ka2 Bh1 Ka3 Bhg2 Qa2 Kb5+ Kb2 Ba5 Ka3 Nc6 Qf2 Rb6 Ra6 Na7 Ka2 Rbc6 Kb2 Bb6 Ra1 Qf4 Ka2 Qg3 Ka3 Ka5
R1bQ1N1B/3R1Br1/2qNrr2/8/2BN2nk/R2r2br/nKqPNBn1/4r3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 b4 Kf6 e4 Kg5 b6 c5 e5 f5 e6 a5 e7 h5 e8B h3 d6 f3 b5 f2+ Ke2 f4 Kd3 h2 Kc3 c4 d7 a4 b7 a3 b6 a2 Qe1 f3 Nh3+ Kh4 g5 Ra7 g6 Nh6 g7 Na6 g8N Ng4 b8R Qc7 d8N Qc6 b7 Nb4 Bd3 Rh6 Qe2 f1N Nf6 f2 Ne4 Nfe3 Nhg5 f1R Ra8 Rff6 b8B Bd6 Nge6 Rg7 Bf7 Bg3 Bb2 Ng2 Ba7 Rhg6 Rf1 h1R Bf2 Rh3 Nf8 Re6 Nd6 Rgf6 Kd4 c3 Bc4 c2 Qd3 c1R Nc3 Rce1 Ne2 Qa4 Nc6 Qc2 Rb1 a1R Rc1 Qb1 Rc3 Na2 Rca3 Qc2 Bc3 Reb1 Re1 Rb7 Rb1 Rd7 Rb7 Re1 Ba1 Rde7 Rd7 Re3 Kc5 R7e6 Qd5 Rd3 Be5 Kg5 Ncd4 h4 Kb5 Rhh1 Ka5 h3 Kb5 h2 Ka5 Qc1 Ka4 Kh4 Qa5 Qb1 Qd8 Qc2+ Rb3 Rhg1 Ka3 h1Q Rc3 N2e3 Rb3 Qc6 Rc3 Ng2 Rb3 Qd1 Kb2 Rh1 Rba3 Rh2 Bf4 Rh3 Bh6 Rg6 Bg7 Qda4 Bh8 Rg7 Ba6 Qd1 Bc4 Qc2+
B2K1k2/R2P4/2r2Brb/Nr2q2r/3bn1N1/2RNN2B/b1n1Rbb1/1B1Q1n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 h3 e4 f3 d4 f4 b4 c4 d6 c3 g5 h2 b6 c2 d7+ Kf7 d5 h4 b7 h3 d6 f2 g6+ Kg7 Ke6 f3 e5 a4 b5 a3 b6 a2 Ne2 Nh6 Bb2 c1B Na3 Ra7 Nf4 Kg8 g7 Be3 Nd3 Rh7 Nc2 Nc6 b8N Ng4 b7 Nb4 Nc6 Qg5 b8R Nf6 Na5 Rc7 Rc1 a1B Ra8 Rc3 Ra7 Rc6 Bg2 Ne4 Re1 f1R Re2 Bd4 Ne3 h1B Rc3 h2 Bh3 Bb7 d8N f2 Kd7 Rh6 e6 Qe5 e7 Rg6 e8B Nc2 Nf7 Bg2 Kd8 h1R d7 Rh2 Qd2 Rb1 Qd1 f1N Nh6+ Kh7 g8B+ Kg7 Ba3 Rb5 Bd5 Bfc5 Bb4 Kf8 Nhg4 Bb2 Bef7 Bc1 Ba2 Rh1 Bfd5 Ba8 Bb1 Bb7 Nec4 Bh6 Ba3 Bf2 Bb2 Bcd4 Nce3 Bf3 Bg2 Rh5 Bh3 Bg2 Ba1 Ba6 Bb2 Rc4 Ba8 Bb7 Bc1 Bd5 Bd2 Rcc6 Be1 Bg1 Bh4 Ba2 Bf6 Bf2
2Q3r1/1Nn2b2/B2rnqr1/qr3R2/1B2KnR1/N1N1RP1B/5B2/k1b1b1bN w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 d4 h5 b4 a5 g4 e5 f3 c5 g5 h3 g6 c4 b6 a4 g7 a3 b7 a2 b5 c3 b6 h4 Qd3 c2 Bg2 h2 Bd2 c1B Qf1 h3 Qb5 Nf6 g8B Nc6 b8N Be6 b7 Ra5 Nd7 Bf7 b8R Ne8 Qc4 Nc7 Rb5 Qf6 Rb3 Nd8 Na3 Rb5 Ne2 Nde6 Rg1 h1R Nb6 h2 Na4 Rh6 Rc3 Rg6 Bh3 Bg7 Rg3 Rd1 Rg4 h1R Ng3 Rhg1 Nh1 Bf8 Rb1 a1Q Rd3 Be7 Nc3 Rg3 Bh7 Rgg1 Rb4 Rg8 Rf4 R1g6 Rf5 Bf8 Nab1 Qa5 Na3 Na8 Qc8 Nac7 Ke2 Bh6 Re3 Bf4 Be1 Bh2 Bf2 Bg1 Qa6+ Ke7 d6+ Kd7 Qc8+ Kc6 d5+ Kc5 d7 Rd4 Rd3 e3 d8B e4 d6+ Rd5 Rf4 Rd4 d7 Rd5 Rbd4 Rd6 Rd5+ Kb4 Be7 Kb3 d8N Kb2 Rg4 Ka1 Nb7 Qa6 Rf5 Qa5 Kd1 e2+ Kc2 e1B Re3 Rc6 Bb4 Rcb6 Re2 e3 Kd3 Ra6 Ke4 Rd6 Rd2 e2 Rd3 Bed2 Re3 e1N Ncb1 Nd3 Nc3 R6g7 Bg6 Ndf4 Bh7 Bh5 Bg6 Be1 Be8 Bf7 Bd7 Rbb6 Bb5 Rg6 Ba6 Rb5
r2b4/BbrBn3/R4RPR/3QK1NN/qrN2Bb1/qq2n3/5r1N/1k2b1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 c5 b3 f5+ Ke5 a5 e4 h5 b6 c4 b7 f3 g5 h3 d6 f4 g6 c3 d7 h2 d5 h4 d6 a4 Kf5 f2 e5 h3 e6 a3 e7 a2 e8N c2 Bb2 c1R Bg2 f1R Bg7 f3 Bf6 f2 Qd5 Nh6+ Ke5 Nf5 Ng7 Ne3 Nd2 Kc3 b4 Kc2 b5 Be7 b6 Qg8 d8N Bg4 d7 Rh4 Nf7 Bd8 Nh5 Kb2 Be4 Rc7 Ngf3 Qf8 Bh8 Qa3 Bf5 Qb3 N7g5 Nc6+ Ke4+ Kc2 b8B Ne7 b7 Qa4+ Bd4 Qa3 Rd1 a1B Nc4 Bc3 Ra1 Be1 Bba7 Qa4 Ra2+ Kb1 b8B Qb3 Ra6 Qa4 Rg1 h1B Bdc5 Bg2 Rh1 h2 Be6 Qb3 Ke5 Qa3 Rg1 h1Q Nh2 B2f3 Rg3 Be4 Rh3 Qf3 Bcb6 Qd1 Rf3 Qda4 Rf6 Rg1 Bf5 f1Q Bc5 Rg2 Bd4 Nd1 Bg1 Rf2 Be6 Ne3 Bf5 Ng8 Be6 Qfd3 Bf5 Be7 d8R Qdb3 Bd7 Bg2 Rdf8 Bd8 R8f7 Ne7 Rh7 Rb7 Bd6 Rc7 Rh6 B2f3 Kd4 Be4 Bf4 Bh1 Ke5 Be4 Qa5 Bb7 Qd5 Rd2 Nb6 Bf3 Bg3 Rb4 Nc4 Rf2 Bf4 Bg4
rb2R2q/B2bBR2/2q1PR1B/1BQ1r1r1/KN5n/2NbRNk1/n2q3r/6q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 Kd2 f5 Kc2 h5 Kb3 c5 g4 a5 d6 h3 b6 Kh4 g5 a4+ Ka3 f3 e5 f2 b5 f4 e6 c4 d5 h2 g6 c3 g7 c2 b7 f3 b6 Bd7 Qe1 Nh6 g8N Nc6 b8B Kg3 b7 h4 Bc4 h3 Qf1 Nf5 Ba7 Rh5 b8R Rg5 Rb7 Nh4 Bb5 Nb4 Nf6 Na2 Qc4 f1Q Qc5 f2 Nf3 Qg1 Nc3 f1B Be3 Qa5 Re1 c1R Bd2 Rb1 Re3 Re1 Rc7 Bd3 Rb7 Qf2 Rf1 h1Q Rc7 h2 Bc1 Bc6 d7 Qfg1 d8R Bd7 Re8 Bd6 Rf2 Bf4 d6 Qhg2 Rb7 h1R Nfd5 Rh2 Nb4 Qa6 Rf1 Qd2 Rc7 Qc6 Rb7 Bc8 d7 Bb8 d8B Ree2 Rf7 Bd7 Be7 Re1 Nc2 Ree2 Kb2 a3+ Kb3 Nb4 Rf6 a2 Ka4 a1Q+ Na3 Na2 Nc2 Reg2 Nb4 Re5 Ree1 Qdb2 Bh6 Qd2 Re4 Kh3 Re3 Rgg5 Rf7 Kg4 Nd4 Qab2 R1f6 Qba1 Nf3 Kg3 Rf5 Qab2 R5f6 Rg6 Ncd5 Rgg5 Rf5 Re4 Rf4 Qe5 Nc3 Qh8 R4f6 Ree5
2nRNb1N/1qB1B2P/1bq5/2qR4/3B1qb1/n2RR3/b1Br3n/r1k1K1NQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 Kd6 b4 f5 e4 g5 b6 a5 b7 c5 h5 g3 h6 g2 b5 a4 b6 f3 h7 a3 Qc2 f2+ Kd1 f4 Qb3 g4 Nf3 g1Q Nfd2 a2 Bb2 g3 Qe3 g2 Qf3 c4 Rh3 c3 Na3 Nd7 b8B+ Qc7 b7 c2+ Ke2 Ra5 Rd1 c1Q Rh5 a1N e5+ Ke7 e6 Kf6 e7 Nb6 e8R Bg4 d6 Nh6 d7 Nc2 d8N Nc8 Nac4 Ra1 Nf7 Na3 Ncd6 Q1c6 Re3 Qh1 Ba7 g1B b8B Qa5 Rh3 Qac5 Ne8+ Kf5 d5 Rg8 Bg2 f1B+ Ke1 Bc4 d6 Ba2 d7 Rg6 d8R Rd6 Qf1 f3 Bc7 Kf4 Bf6 Qb7 Rd3 Qbc6 Rd5 Ke3 Nh8 Qb7 Be7 Rd7 Ne4 Qc6 Nc3 Rd6 Rf5 Rd2 Rfd5 Qb7 Ne2 Qc6 Be5 Qb7 Bd4+ Kd3 Bb6 Kc2 Bc7 Be3 Qg1 f2+ Kf1 Qbc6 Rg3 Qb7 Bh3 Qe4 Qh1 Qg6 Ng1 Qgc6 Bg7 Bd4 Re3 Kb2 Bg2 Kc2 Be4+ Kb2 Kg2 f1Q+ Kg3 Qff6 Bc2 Qf5 Ne2 Qe5+ Kf2 Qf4+ Ke1 Bf3 Nf7 Ng4 Nh8 Nh2 Ng1 Bg4 Bb1 Rf2 Rdd3 Kc1 Bc2 Rd2 Bgf6 Q5b5 Bfe5 Bb6 Bd4 Qbc5
1Bb5/3nBr2/3qB1N1/r3RRr1/3B1pN1/2b2Qnq/KnP3qR/b1k2N1R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 h4 Ke6 e4 Ke5 b4 f5 h6 g5 b6 d5 b7 a5 h5 g4 h7 f3 b5 Kf4 h6 d3 Kc3+ d2 Kb2 Ke3 e5 f4 e6 g3 b6 g2 e7 f2 e8N a4 Rh4 a3+ Ka2 d4 Rh2 d3 Nf6 Bg7 Nf3 g1Q Bh3 f1Q Ne5 Ra5 Ng6 Ne7 Be6 Rf8 h8B Qh3 h7 Nd7 b8R Nf5 b7 Rf7 Ra8 Qb6 b8B Qd6 Qf1 Qgg2 Qf3+ Kd4 Ng4 d1R Rh1 Rg1 Nd2 Kc3 Nf1 Ng3 Be3 d2 Re1 Be5 Bf6 d1N h8R Nb2 Be7 Bd4 Rh5 Bf6 Rf5 Bh8 Nfh2 Bf6 Bd4+ Kd2 Ree5 Kc1 Nf1 Bg7 Kb3 a2 Ra7 a1B Rc7 Bf6 Rc3 Qe2 Rd3 Qe4 Rd2 Qec6 Rdh2 Qe4 Qd3 Qeg2 Qf3 Qd2 Bb6 Qh7 Nf2 Qh3 Rd5 Bc3 Bd4 Ne4 Rde5 Rg5 Ng4 Qe2 Rb5 Qeg2 Rbe5 Rd5 Ka2 Ng3 Re4 Rc5 Ree5 Ra5+
5N2/1p1b2r1/P1Qq3B/1rRNnN1K/BB2q3/1R2R1Bk/bN1r4/qnn3b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 c5 f4 e5 a4 e4 d4 b3 d6 e3 d5 b2 d7 h6 a5 e2 a6 e1Q d6 c4 Nh3 c3 Nd2 b1B Ra5 c2 Nc4 Qee8 Nb2 Nc6 Qf3 Qe6 Kh5 Qc4 g4 Qe4 Rc5 Nge7 Bb5 Ba2 Ba4 Rb8 Re1 Ne5 Re3 Rh7 Qg2 Qb6 d8B Bd7 Bc7 Rg7 Bd2 c1N Bb4 Rd8 g5+ Kf7 g6+ Kf6 Qf3 Nd5 Qh1 Nc3 Bb8 Re7 g7 Nb1 g8R Rh7 Rgg3 Rg7 Rb3 Qbc6 Rge3 Qb6 Qd1 Qbc6 Qd5 Qc7 Qc6 Be7 Nf2 h3 Nfd1 h2 Nc3 h1R+ Rh3 Be6 d7 Qd6 Bc7 Rd1 Re3 Rd2 Bb8 Rh8 d8N Bd7 Ne6 Bd8 Nd4 Bb6 Kh4 h5 Nd5+ Kf7 f6 Kg6 f7 Rd8 Nc2 Kf5 f8B Re8 Bc7 Ree7 Bb8 Rg5 Bh6 Reg7 Kh3 h4 Nd4+ Kg6+ f5+ Kh5 Ne6 Ba7 f6 Bb6 f7 Rf5 f8N Ba7 Re2 Bb6 Kh2 Kg4 Nd4 h3 Bc7 Rfg5 Nf5 Ba7 Bd8 Rh5 Bh4 Bb6 Bg3 Ba7 Kg1 h2+ Kf1 h1Q+ Kf2 Qeg2+ Ke3 Kh3 Kf4 Qd1 Rb5 Bg1 Rc5 Qc2 Ree3 Qc3 Nc4 Qa1 Nb2 Qh1 Ng6 Rh4+ Kg5 Rc4 Kh5 Qe4 Nf8 Rcd4 Rcc3 Rc4 Rc2 Rc5 Rc4 Ra5 Rc5 Rb5
1bb1r3/3nN2n/1k1b3B/1r1RN2B/1N1N1KBb/n3P3/Rb1Qrq1p/6BR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 a5 d4 f5 g4 c5 b4 Kc7 d5 h5 d6+ Kb6 g6 a4 d7 h4 g7 c3 g5 a3 g6 h3 Qa4 c4 Bb2 h2 Bc1 a2 Bh3 c2 Na3 c3 Bg4 Qf6 d8R Ra5 Rd5 Bd6 Qb3 Qf8 Qb2 Nf6 g8B Nbd7 g7 Nh7 Bf7 Rg8 Bd2 c1B Bfh5 c2 Qc3 Rh8 g8N Bb2 Ne7 c1B Nc2 Qf7 Qd3 Re8 Nd4 Bb8 Qc2 Ba3 Be3 Bcb2 Qd2 Qf8 Bf2 Qf6 e3 Qf8 Ke2 f3+ Kd3 f4 Ke4 Kb7 b6 Rb5 Nc6 Ka6 b7 Kb6 Ne2 Bf6 Ne5 Bh4 Bg1 f2 Kf3 f1N Nd4 Bb2 Ke4 Bd6 b8N f3 Na6 f2 Re1 a1B Re2 Qh8 Kf4 Qg8 Qd3 Nd2 Qc3 Nb1 Qd2 f1R+ Rf2 Ra5 b5 Re1 Nb4 Na3 Rg2 Re2 Rf2 Kb7 b6 Rb5 Rg2 Qg6 Rf2 Qc2 Rg2 Ka8 b7+ Ka7 b8B+ Kb6 Rf2 Bc3 Rf1 Bab2 Ra1 Ndf6 Ra2 Nd7 Qd3 Bce1 Qd2 Beg3+ Kf3 Qc1 N5g6 Bc5 Bf4 Qe1 Bh6 Bb8 Ne5 Bcd6 Kf4 Qf2+
1Q1N2bb/1rB2NN1/2B3nR/2K1nRbB/Rq1r1b1k/b2Pn3/4R2p/1N3r2 w - - 0 1 illegal: No possible last move, all moves rejected
r1R3R1/b2Nq3/1nRr3B/5P1Q/1Nr2r1p/n3b1BB/1KN1b3/n2kBrN1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc3+ e3 b4 Kf4 b6 a5 b7 c5 f3 h5 b5 e5 d6 a4 g5 h3 g6 e4 b6 h2 g7 h4 d5 a3 d7 a2 d6 c4 Qe1 Ne7 g8R Nec6 Rg2 Na5 Qd2 Bh6 Qd4 Qe7 d8B Nd7 b8N Rf8 b7 Nb6 Qd3 Bg4 Kc2 c3 d7 Nac4 Qe2 Na3+ Kb3 c2 Kb2 Bh5 Rg8 Bg4 Bd2 c1R Bh3 Rc4 Be1 Bh5 Qd1 e2 Na6 Ke3 b8N Bg5 Nb4 Rf4 Bc7 Bg4 d8B Bh6 Bc3 e1B Nd7 Bf2 Be1 Bg5 Qd5 Bh6 Qh5 Bg5 Nc3 Bh6 Rb1 a1N Nc2+ Kd3 Be5 e3 Rc1 e2 Nd5 Be3 Bdc7 Bg7 B5c3 Bgd4 Bg3 e1R Be5 Raf8 Bg7 Rf1 Bh6 Ra8 Rc8 Bc5 Ba5 Rd1 Ndb4+ Kd2 Rc6 Bd6 Rc8 Bb8 Rg8 Ba7 Rc8 Rf6 f4 Be2 f5 Rf1 Ne1 Rcf4 R1c6 Kd1 Nec2 Rg6 Nf3 Rgg4 Rg1 h1R Rg2 Rg6 Ng1 Re6 Be1 Rf6 Rgg8 Rd6 Bg3 Rh2 Nd5 Rhf2 Be1 Rc4 Ndb4 Rff4
1K2N1B1/5br1/NQR5/BBn1Nk1r/1r4r1/p1nnR1r1/P2q4/qNb2BR1 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 d4 h5 g4 b5 c6 a4 d6 a3 Kd5 h3 e4 b4 d7 h4 c7 b3 Bb5 b2 Bd3 h2 Qa4 f3 Qb5 f2 Bf1 h3 Nf3 Na6 Kc6 Ra7 d5 Bh6 d6 Nc5 Rg1 h1Q Bd2 h2 Ba5 Bc1 Ne5 Rh5 g5+ Ke6 g6 f5 g7 f4 Rg6+ Nf6 Qb6 f3 Rg1 Nd5 g8B+ Kf6 Rg3 Ba6 c8B Bc4 Ba6 Nc3 Bb5 Bf7 Rg1 Ke6 Rg3 Qg5 d8R Qd2 d7 Qg1 Rh3 h1N Rc8 Rb7 d8N+ Kf6 Bfe2 f1R Ne6 Nf2 Nc7 Nfd3 Na6 f2 Re3 Qh1 Rc7 Rg1 Bf1 Rg3 Kd6 Qg1 Rc6 Rg4 Nd7+ Kg5 e5 Kf5 e6 Qh1 e7 Qg1 Be2 f1R e8N Rf3 Ne5 Rfg3 Bf1 Bd5 Nf6 Rbg7 Ne8 Bf7 Kc7 Qe2 Nd2 b1R Kb8 Rbb4 Nb1 Qd2 Be2 N3e4 Nc3 Bb2 Re1 Qf2 Rg1 Qfe1 Bf1 Qa1 Nb1 Bc1 Rg6 Nc3 Re6 Qh2 Rc6 Qd2
1qn1Q2R/1Rb4N/1r1b1b1k/5R1p/1B2rN2/2BnrB1q/2b1PR2/4NNbK w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 a5 b4 h5 d4 c5 g4 f5 Kg2 Kf7 d5 Kg6 b6 c3 b7 c2 b5 c4 d6 c3 d7 a4 b6 a3 Rh2 f3+ Kh1 a2 Nd2 f2 Ba3 c1B Bg2 f1Q Qa4 Ra6 Bb4 c2 Qb5 Kg7 g6 f4 g5 Nc6 b8B f3 b7 f2 Ba7 Nge7 b8R Rh7 Rb7 Ne5 Bd4 Rb6 Bdc3 Qc7 d8N Bf5 Qc6 Nc8 Qe8 Bd6 Bd5 Qh3 Rb1 f1R Bg2 Rf4 Ngf3 Bf8 Ne6+ Kh8 Ra1 Re7 g7+ Kh7 g8R Qb8 g6+ Kh6 Nf1 Be3 g7 c1B Ne1 Bg1 Bf3 Bd2 Rd1 Bc2 Ra1 Rc4 Rd1 Bde3 Rd5 Nd3 Rf5 Bd4 Nf4 Bf6 Qc6 Re5 Qe8 Bd6 Rf8 Re3 Rg8 Qg3 Rf2 Rce4 Rf8 Bc7 Rg8 Be7 Rgf8 Bed6 g8N+ Kh7 Nf6+ Kh6 Nh7 a1B Rh8 Bb2 Bd2 Bf6 Bdc3 Qh3+
2n1qq2/NKr1qr2/2R3R1/b1R3p1/nNB2B2/BN2R2P/Q3r3/rb1k1Br1 w - - 0 1 illegal: No possible last move, all moves rejected
2B1B2b/qPb1R1NR/qb5r/3knBKN/2bp4/Rr1Q3b/N6n/3n1RB1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 h5 c4 e5 f4 d5 b4 a5 f6 Ke6 f7 h3 c5 h4 g5 e4 b6 h2 g6 d3 Ke3 d2 b7 h3 f5+ Ke5 c6 a4 g7 a3 c7 a2 b5 Be7 f8R Nf6 g8B Ra3+ Bd3 Nbd7 b8R Rb3 b6 Bd6 b7 Rh6 Ne2 Qe7 Re1 h1Q Nbc3 h2 Bf7 Qf1 Ng3 h1B Nh5 Qe8 Bc2 Qa6 Re2 Qe6 Be8 Bg2 Ba3 Bf1 Bc5 Qa7 Ra8 Bh3 Rf7 Bf1 Rb1 a1B Rh7 Bb2 Re1 Bc4 Bd3 Ba1 Na2 Bc3 Qc2 Ba5 Rf1 Bb6 Rbe1 d1N+ Ke2 e3 Kf3 e2 Bg1 Ng4 f6 d4 f7 Be7 f8N Kd5 Kf4 Nde5 Bf5 Bf6 Qd3 Bh8 Kg5 Bd7 c8B Nh2 Rf3 Bc7 Rff1 Qea6 Ne6 Bb6 Neg7 Be6 Bfg6 Bh3 Bgf5 Bc7 Rf3 Bb6 Ref1 e1B Re3 Bg3 Re4 Nc6 Re2 Bgc7 Re7 Qb8 Ra7 Ne5 Ra8 Qb5 Ra4 Qa7 Ra3 Qba6
2R3B1/3Q1N2/1K4N1/rbR1r2B/1B1nb2N/bqpPb1B1/n3nN1r/2k2q1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 g4 Ke5 e4 Kd4 b6 f5 e5 c5 e6 h5 d3 a5 d6 c4 e7 h3 e8B f3 b5 a4 b7 f4 g5 h4 g6 a3 d7 a2 g7 h2 b6 h3 Be2 Nf6 g8R Ba3 Nd2 Kc3 Bf1 Nc6 b8N Rh5 b7 Re5 Qe1 Kc2 Ne4 Raa5 Bg2 Nd5 Bd2 Nd4 Bh5 Nb4 Nc6 Qb6 b8B Ba6 d8N Bb5 Ne7 Kb2 Rc1 a1B Rg5 Na2 Ng6 Qe6 Bb4 c3 Nf7 Qb3 Rb1+ Kc2 Qe3 B1b2 Qe1 Bc1 Bc7 Re8 Rc5 Re5 Qe3 Kd1 Rb2 Bd2 Bb8 Kc1 Rc8 Nc2 Qa7 Nd4 Qd7 Be3+ Kf1 f2 Nf3 Nc6 Ke2+ f1N Nfh4 f3+ Ke1 f2+ Ke2 Rd5 Bg3 Rf5 Bgf3 Re5 Bfg4 Ra4 Be6 Ra5 Rg1 h1R Kf3 Rh2 Rh1 Bc5 Kf4 Nd4 Bd5 Re7 Be6 Re8 Ke5 Bb6 Kd6 Ba7 Bd5 Re5 Kc7 Nf3 Re2 Re7 Nfh8 Rg2 Bg8 h2 Rg1 h1B Bgd6 Rh2 Nf7 Re6 Rg5 Be3 Rc5 Nd4 Kb6 Ng3 Rd2 Nge2 Rd1+ Kc2 Rg1 f1Q Nf2 Be4 Rh1 Re7 Bf4 Re5 Bg3 Kc1
1KbrbR2/R4R2/QbB4k/2rq4/rB3n2/bp2qNq1/n2NNBP1/4BN2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kg7 Kc4 e5 Kb5 c5 f4 h5 a4 e4 d4 e3 f6+ Kh6 a5 b6 d6 c4 d7 c3 d5 e2 f7 e1Q f5+ Kg7 d6 h3 a6 c2 a7 h2 Qe2 h4 Be3 Na6 Kc6 c1B f6+ Kh7 Qa2 h3 Bb5 Bg7 Bd4 b3 f8B b2 f7 Nf6 Ne2 Nh5 Rf1 h1R Qa3 Qe7 d8B h2 d7 Nb4+ Kc7 Kh6 Bc6 b5 Qa2 Qe4 Bh4 Rg8 Rf4 Qd5 d8N Qf2 Bc3 Qe3 Bf2 Rh8 Rf5 Nf4 Ne6 Rf1 Be7 Rd8 f8R Bd4 Ng5 Rd1 Bce1 h1Q Bc5 Qh2 R5f7 Qhg3 Nf3 Rd3 Qc4 Rc3 Ra5 Na2 Ba3 Rb8 a8N b4 Nb6 b3 Bb4 Ra8 Ra3 Ra7+ Kb8 Ra5 Qd3 Ra6 Nc4 Bb6 Nd6 Rc5 Nc4 Qe8 Nbd2 b1B Rb7 Ra7 Nf1 Qe3 Ncd2 Bc2 Qc4 Bg6 Rd7 Be8 Rdf7 Raa5 Ra4 Ba3 Qd3 Rab5 Raa7 Ra5 Qa6 Ra4
4Rbr1/2q2KNq/RnBR3b/1r3N2/2NQB3/p2nrn1b/Pb1B4/1N1k2B1 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Ke7 h4 Kf6 d4 Kf5 c6 Ke4 d6 a5 h5 f5 d7 b5 e3 g5 d5 b4 h6 b3 d6 a4 c7 b2 h7 f3 Kg3 f4+ Kh2 a3 Bb5 f2 Bd2 f1N+ Kg2 g3 Kh3 g2 Kg4 f3 Kh5 g4 Kg6 g3 Rh6 f2 Ne2 Kf3 e4 g1B e5 g2 e6 Nh2 e7 f1R e8B Ne7+ Kf7 Bd4 Bc6+ Nd5 Ng3+ Kf2 Rg6 g1B Nf5 Rg8 h8R Nb4 Be4 Nd3 Qa4 Be3 Qd4 Ke2 Re6 Re1 Reh6 Qh4 d8N Nd7 Ne6 Qg3 Neg7 Nb6 d7 Ra5 d8B Rb5 B8c6 Kd1 Rg6 Bd7 c8N Bh6 Ncd6 Re3 Nc4 Qc7 Bh4 Nf3 Bf2 Bh2 Bg1 Be5 Nc3+ Kc2 Rd1 b1Q Re6 Qb4 Nb1 Qe7+ Kg6 Qh4 Kf7 Qh1 Rd6 Bf6 Re1 Qh2 Re2 Kd1 Rg2 Qh4 Rg6 Be5 Qd5 Bb2 Qd4 Bg5 Rge6 Qh7 Re8 Bf4 Ra8 Bg5 Ra6 Bh6 Bc1 Be7 Ng3 Rd8 Bd2 Bh3 Nf5 Rb8 Rhd8 Rc8 Re6 Ra8 Rdd6 Rg8 Re5 Bf8+ Re7 Qd8 Re8 Qc7+
1b4q1/2N3kB/bbq2N2/6nK/rr2NNrp/1P2R3/1n1nR2n/2BRBQB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 e4 f5 d4 Kf7 g4 a5 e5 c4 b3 a4 d6 h3 b6 c3 b7 h2 d7 c2 g5 a3 g6+ Kg7 e6 a2 d5 h4 e7 Ra4 e8R Nh6 d6 Nf7 Bh3 Nc6 b8B Rg8 Re7 Ba6 Nc3 Rb4 Re2 Na5 Qf1 Nc4 Ba7 Nb2 Ne4 Qg5 Rb1 a1R d8N Raa4 d7 Bd6 Bc5 Bb8 Ne6+ Kh6 Nc7 Kg7 d8B Qg4+ Kf2 f3 Bg2 f4 Nh3 Ng5 Bb6 Kh6 g7 Qc8 Rg1 h1Q Bf6 Kg6 Bc3 Kf7 Be1 Qf8 Bce3 c1B Bbd4 Bd2 Rd1 Bc3 Ba7 Bd4 Rd3 Bb6 Rc3 Rh8 g8N Kg7 Ngf6 Rg8 Rd3 Ba5 Bac5 Bb6 Bc1 Qe8 Bd4 Qc6 Rde3 Qh2 Rh1 Qg3+ Kg1 Qg4 Kh2 f2 Rg1 f3 Nf4 Rd8 Bc5 Rdd4 Bh3 Qge6 Bf5 Qg8 Bg6 Ne6 Kh3 Ng5+ Kg4 Rdc4 Qh3 f1N Bh7 f2 Kh5 Nh2 Qf1 Rd4 Rd3 Rdc4 Rgg3 Rd4 Rd1 Rdc4 Rge3 Rd4 Qh1 f1N Qg2 Nd2 Qf1 Rd8 Rd3 Rd7 Bg1 Rdd4 Rde3 Rd3 Rg3 Rf3 Rh3 Rf2 Rc3 Rg2 Rce3 Rg4
q1R5/k3BRN1/2r1n3/b2RB1n1/rnprN3/b1R3NB/q1BQP3/K1b4b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 c3 b4 Kd7 d4 f5 g6 h5 g7 a5 g5 c5 g6 Kc7 d5 Kb6 d6 a4 d7 a3 Rh3 a2 Bb2 f3 Qd2 c2 Rh2 h4 Nh3 c4 Ba3 c1B Kd1 f2 Kc2 f4 Nc3 f3 Ng5 h3 Qd5 Nc6 Ne6 Bb2 Rc1 a1B Kb1 Nge7 g8B Rh4 g7 Nd4 Bh7 Ra4 g8N Ka7 Ng7 Qb6 d8R Nec6 Nf6 Bb7 Nfh5 Rg4 Bg2 f1R Ng3 f2 Qg5 Rh1 Qd2 f1N Rd7 Bd6 Rf7 Bc7 Rc2 Bc1 Bf5 Bab2 Bh7 Ba8 Ka2 Qb8 b6+ Ka6 b7 Ba5 b5+ Ka7 Kb1 Rf4 Bd6 Ba3 Ka1 Rg4 Be7 Rg6 Qd3 Nd2 Bf1 Ne4 b6+ Ka6 Rhf2 h2 Bh3 Ng5 R2f5 Rd1 Qe3 Rd3 Qd2 h1Q Rb5 Qd1 Rc5 Qf8 b8R Nb4 b7 Ka7 Rd8 Rb6 Bg6 Nde6 b8B+ Kb7 Be5 Ka7 Re8 Bh1 Rd5 Rd4 Bd3 Rc6 Nce4 Qh8 Rc3 Qb3 Rb8 Qc8 Bc2 Qb7 Rh8 Qa8 Rc8 Qa2#
8/q1n1N1B1/nNqRRbrR/5pb1/4QRP1/b2B1r1b/r1B1B1k1/qK1N4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 Kd7 e4 Kd6 d4 f5 Kd2 a5 Kc2 c5 b4 h5 b6 a4 d5 Ke5 d6 h4 b5 f3 d7 f2 g6 c3 g7 c4 b7 a3 b6 a2 Bd3 f1R Qe1 h3 Na3 h2 Ne2 Na6 b8N Qc7 d8R Qd7 b7 Qc6 Rd6 Nf6 g8B Rh6 Bb2 Be7 Rc1 a1B Kb1 Rf3 Rf1 h1Q Bd5 Rfh3 Rf4 Rg6 Bc2 Qc5 Bc6 Qa5 Bb5 Ne8 Rcd1 Re3 Rc6 Nec7 Rdd6 Be6 Rb6 Bg5 Nc6+ Kf6 b8R Rf3 Ne7 Ke5 Rh8 Bd5 Rh2 Qg1 Rbc6 Qa7 Rh6 Q5b6 Bd3 Qbb7 Rb6 Qc6 Ba4 Nb5 Bac2 Nbc7 Ng1 Kd4 Ne2+ Ke3 e5 Be4 Qh1 Kf2 e6 Bd5 Nc8 Be4 e7 Bd5 Qe1+ Kg2 e8B Be4 Ne7 Bd5 Ng3 Be4 Be2 Bd5 Nh1 Be4 Bcd3 c2+ Kc1 Bd5 Bg7 Baf6 Nf2 Be4 Nd1 Bd5 Kd2 c1B+ Kc2 c3 Nc4 Ba3 Kb1 c2+ Ka2 Qcb7 Ba4 c1Q Bac2 Bc6 Re6 Bb5 Rbd6 Qc6 Nb6 Qa1+ Kb3 Qab7 Qb4 Qa7 Qe4 Rb8 Nbd5 Kg3 Bf1 Q1d4 Ka2 Rb7 Bc4 Qe5 B4b3 Bd3 Bc4 Rb2+ Ka1 Ra2+ Kb1 Be2 B4d3 Qec3 Bg2 Bf1 Nb6 Rf2 Bh1 Bh3 Bg2 Rf3 Bgf1 Qd4 Bfe2 Kg2 Qe5 Qdc3 Qe4 Qa1#
kq1b3r/1rQ3N1/K2b1NbR/1nP5/5p1n/rq1RBBn1/N4N1B/n3R1B1 w - - 0 1 illegal: No possible last move
b7/1qN1KBQ1/2B1Rn2/kP1R2N1/1pn2R1r/1rrR1r2/N2n1BNb/2q4q w - - 0 1 illegal: No proof kernel
3nBbnb/2Bq1R2/r1b1pN2/rB2QB1R/4NNR1/1b3PK1/kn2r1q1/6R1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 b4 h5 g4 d5 f6 Ke6 b6 a5 g5 d3 f3 d2+ Kf2 d4 b7 a4 g6 h3 g7 a3 b5 d3 f7 h4 c5 Kd5 c6 Kc4 b6 h2 c7 h3 Ne2 a2 Kg3 Bf5 c8B Be4 Nbc3 Rh5 Qe1 Kb3 Nf4 d1B Bf5 d2 Bb5 Nc6 b8N e6 b7 Ra6 Nd7 Bdc2 b8R d1N Rc8 Nb2 Nf6 Qd7 Be3 Nd8 Bb6 Ka3 Rc4 Bb3 Bc7 Bc6 Rb1 a1B Nce4 Ka2 Rd4 Bc5 f8R Bb4 Rg1 h1Q Rf7 h2 Rc1 Bf8 Rc5 Nh6 g8B Rg5+ Kh4 Qg2 Bgh7 Ng8 Bhg6 Qe2 Qg3 h1R+ Qh2 Rh5+ Kg3 Qd2 Qe2 R1h2 Qe3 Re2 Rb4 Rh6 Qc3 Rhh2 Qe5 Rh5 Qd6 Rh1 Rh7 Be7 Rd1 Ka3 Nh3 Rb6 Ng4 Ra6 Nc3 Bcd5 Bfd3 Qe3 Be8 Bc6 Rch5 Na4 Bf5 Bf8 Rf7 Rf1 Rf4+ Kb2 Ne4 Qg1+ Kh4 Qh1 Kg3 Rfe1 Qd5 Ka3 Rc1 Bh8 Qe5 Nb2 Ngf6 Qf1 Rg4 Qg2+ Kh4 Rd1 Nf4 Rd4 Rg1 Ka2 Qd6 Rda4 Qe5 Qf1 Kg3 R4a5 Rg2 Qh1 Rg1 Qg2+
q1qQ2bB/k4Nbn/3Pn1R1/1RrbRqN1/3B4/2Kb1r2/4pBr1/3N1BR1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 Kd2 e5 g4 c5 b4 Kc7 f4 Kb6 f5 h5 d6 a5 f6 a4 d7 h3 f7 c4 g5 e3+ Kc2 h2 g6 e2 g7 e1Q d5 e4 d6 c3 Qg4 a3 Bh6 h4 Qd1 h3 Bg5 e3 Be7 a2 Qe2 Na6 Bh4 Nc7 Bf2 Ne6 Nf3 Ra3 Ng5 Ka7 Rg1 Nf6 g8R h1B Rg6 Bg7 f8B h2 Qg4 Ba6 Qh4 Qb8 d8N Nh7 Ndf7 Rg8 Be7 Bf3 Bf6 h1B Be5 Be2 b6+ Ka8 b7+ Ka7 b5 Bc4 Bf6 Qc8 b8R Bhd5 Rb6 e2 B6d4 Bf8 Bh8 Bg7 Bd4 Qf2 Rb7+ Ka8 b6 Qf4 Re7 Kb8 b7 Qf5+ Kc1 c2 Kb2 c1R Nc3 Bab5 Nd1 Rf3 Rb1 Bd3 Re8 Rc5 Re7 Bbc4 Kc3 Ka7 b8B+ Ka8 Rb6 a1Q+ Rb2 Qaa6 Rb5 Qac6 Bc7 Ka7 Re8 Q6a8 Bd8 Rf2 B8f6 Rg2 Bf2 Rf8 B6d4 Nc7 Nh6 Bg8 Re5 Ne6 Nhf7 Qh3 Nd8 Rf3 Ndf7 Qf5 Qh6 Bf6 Qf8 Bg7 Qd8 Bd5+
6qn/Bb1b1r1N/kpN2rNq/N2B4/3b1qK1/R4Pn1/B1b3Q1/2R1R1nB w - - 0 1 illegal: No possible last move
B1qN1KNk/2Nn2p1/4R1b1/1N2b2B/1qr2n1n/qR2r3/1QBPq3/1r4BR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 c5 Ke3 f5 Kf4 Kf7 b4 a5 h4 a4 e4 g3 b6 a3 b5 c3 b7 c2 e6+ Kg6 Ke5 Kh7 h5 a2 h6 c4 e7 f4 e8B c3 b6 g2 Ne2 g1R Bc6 f3 Nf4 f2 Ba3 c1N Nd5 c2 Bc5 Be7 Nf6+ Kg6 h7 Nh6 Nc3 Qg8 Nb5 Nf5 Bd3 Qd8 Ng8 Ne2 Qb1 c1Q Bc2 f1Q Qb2 Nd7+ Ke6 Qb1 b8N Ra4 e5 Bd6 b7 Rc4 Na6 Rg3 b8R Re3 Bb6 Bb7 Bd4 Qc8 Nac7 Ba6 Ba8 Nc5+ Kd5 Qf2 e6 Be5 e7 Nf4+ Kc6 Kf7 e8B+ Kf8 Bf7 Qe2 Bh5 Nh4 Rb6 Qbd1 Rc1 a1Q Rb1 Qg1 Re1 Qgg4 Rb1 Qa3 Rbe1 Bf6 Kd6 Bb7 Rb1 Be4 Rbe1 Bg6 Rb8 Re8 Bg1 Bd4 Nf6 Rg8 h8N Re3 Nf7 Rh8 Nd8 Rh7 Nfe8 Kg8 Nf6+ Kh8 Ng8 Be5+ Ke7 Qgd7+ Kf8 Qd4 Ne7 Qdc3 Ng8 Qcb4 Bg4 Rh5 Bgf3 Rg5 Bh5 Rgg3 Rb6 Rgf3 Rb1 Rf1 Re6 Re1 Qa2 Rd1 Rb3 Rb1 Qb2 Nd7#
1qR1KNb1/BBq2P1b/1p1BR2b/1Q6/1R1N4/R2n1rB1/3q2r1/1n1b1Nnk w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Ke4 c5 f4 e5 d4 h5 a4 c4 g4 h3 f6 h2 f7 b3 g5 h4 f5 h3 f6 b2 g6 c3 a5 c2 g7 Rh5 a6 Nd7 a7 Rg5 Ba6 Rg2 Kf5 e4 Qd3 e3 Ra3 e2 Qb5 e1Q Nd2 b1N Nf1 Qd2 Nf3 b6 Bb7 Rb8 a8R Qc7 Rg1 h1B R8a4 h2 Rb4 Qd8 Bb2 c1Q Ba1 Qcc7 Bc3 Qe3 Be1 Qd2 Bh4 Qe8 Bg3+ Qe5+ Kg6 Nh6 g8R Nc5 Rh8 Nf5 Rg8 Bh6 f8N Bd7 Kf7 Nd3 Rg6 Qef4 Rg8 Bc8+ Ke8 Nh4 Rg6 Ra8 Rg8 Ra5 f7 Bf5 Ne1 Bh7 Nc2 Nf3 Rh8 Rf2 Rg2 Ng1 Rg8 Rf3 Re2 Bg2 Re7 h1B Re3 Qcc3 Re6+ Kc7 Rh8 Bh3 Rg8 Bg4 Rh8 Bg8 d6+ Kb8 d5 Qc7 d7 Bg2 Ra1 Ra2 d8B Bf5 d6 Bfh7 d7 Bh3 Qh5 Bg4 Be7 Ka7 d8B Qb8 Qb5 Qfc7 Bed6 Bh5 Be4 Bg4 Bg6 Kb7 Bf5 Rb2 Ra3 Bh5 Bh3 Bg4 Bg2 Bh5 Qa6+ Kc6 Nd4+ Kd5 Qa4 Ne5 Qb5+ Ke4 Bf2 Kf4 Bg3+ Kg4 Bh1 Nd3 Bg2 Rf6 Bb7 Kh3 Rbb3 Bd1 Rb4 Qa7 B8e7 Rf3 Bdf4 Kg2 Bed6 Kh1 Bfe5 Qc5 Bb8 Qc7 Bd6 Qa5 Ba7 Qh2 Qc6 Rg2 Qd7 Qg5 Qb5 Qd2 Bc5 Qb2 Be5 Bf5 Ng6 Qc8+ Ke7 Qb8 Kd7 Qf4 Be7 Qfc1 B7d6 Qbd2 Bg3 Qcc2 Ke7 Be4 Ne5 Qcc7+ Nd7 Bgh7 Rd8 Bg8 Ke8 Bf8 Rc8 Bh6 Nf8 Beh7
1Bnq1nK1/B4pN1/R1R3nq/3BQbb1/2R2P2/2R5/r2q1BN1/N1qkbr2 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 g4 a5 c4 h5 f4 a4 c6 h3 c7 h4 c5 a3 b6 e3 c6 a2 b7 e2 Nf3+ Kd3 Na3 h2 Ne1+ Ke4 d4 h3 d5 Ra6 d6 Rh7 d7 Qe8 d8B e5 Qd6 Bf5 c8R Ne7 Kf6 Bh6 c7 Ng6 Ng2 Kf3 g5 e1Q Nc2 e4 Bc4 e3 Bd5+ Ke2 Ba3 Rg7 Bc5 Qd2 Rhc1 h1N Ba7 h2 Qe6 Ra3 Qe5 Ng3 Be7 h1Q Bec5 Nc6 b8B Nce7 Bd4 Nf8 g6 Qd8 Bdb6 Rh7 g7 Qh3 g8N Neg6+ Ne7 Qh5 Rab1 a1Q Rb3 Qh2 Rc3 Ra2 Rb1 Qb2 Na1 Qbc1 Rbb3 Qh5 Ra3 Kd1 Ra6 e2 Bf2 e1B Rcc6 Rh8 Rc4 Bg5+ Kg7 Rh6 Kg8 Ne4 Rc3 Nd6 Rcc6 Bh3 Nf5 Rh7 Ng7 Qh6 Rc3 Bf5 Rcc6 Qd7 Rd8 Qe7 c8R Qe8 R8c7 Nc8 Rdd6 Qd8 Rc4 Qh2 R7c6 Rh3 Ra3 Rf3 Rac3 Qh6 Ra6 Qh5 Rdc6 Qh6 Bh4 Rf1 Bg3 Bg4 Bgf2 Bf5
3bq1bN/1P2p2R/N1NR2B1/r1rNq3/R1q1B2Q/1knr4/n3b3/K1r1B1R1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 b4 Kd6 f4 h5 d4 c5 Kd2 a5 Kc3 h3 Kb2 h2 f5 h4 b6 c4 b5 a4 f6 e3 b7 e2 f7 e1Q g5 h3 b6 Ra5 g6 Be6 g7 Qc7 Nf3 Rc5 Ng5 Qe5 Qh5 Nf6 g8B Ne4 Bh7 Na6 b8N Nc3 b7 Nb4 Be4 Bg7 f8R Nba2 Qh4 Bg8 Rg1 h1B Na6 h2 Bd2 Bf3 Rf7 h1Q Bfd3 Be2 Be1 Qd7 Bg6 Qe8 Bde4 Bh6 Rg7 Qf3 Rh7 Qd3 Nd2 Bg7 Nf1 Bh6 Ne3 Bg7 Rb1 a3+ Ka1 Qc2 Rb4 Bh6 Ne6 Bf4 Nd8 Qb3 Ra4 Qbb5 Rf7 Rh5 Rg7 Rg5 Nc6 Rg3 Rh7 Qb4 Ng2 Rd3 Ne3 Nd1 Qh2 c3 Qf2 c2 Qh4 Kd7 d6 Ke6 d7 Ndc3 Nd5 Qc4 Nd8+ Kd6 Nf7+ Kc6 d8R Kb5 Nh8 Be3 Rb4+ Ka5 Rd6 Bd2 Rb5+ Ka4 Ra5+ Kb3 Ra4 Nd1 Rh6 Ba5 Rh7 Ndc3 Nf6 Bd8 d5 Nb4 Rd7 a2 d6 Qce6 Ra3+ Kc4 Kb2 Ba5 Rd8 a1R d7 Q6d5 Ra2 Qdd4 Nd5 c1R Ra8 Qf8 d8N Qe8 Nc6 Bb6 Ra5 Ra4 Rd8 Nba2 Rd6 Bd8 Rb5 Ra3 Rb3 Raa5 Ra3 Rcb5+ Ncb4 Rc5 Ra4 Rc2+ Ka1 Kb3 Nc6 Qb4 Rf6 Qc4 Rd6 Rc1#
1NbK4/p1r1QRP1/5qrq/Rb3n1R/N5B1/1Rr1bB2/1r3q2/1nB1kNB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 e4 c5 g4 f5 d6 f3 b6 f2 d5 f4 d7 f3 Ke6 h3 g5 c4 b7 c3 g6 h4 d6 h2 e5 c2 g7 h3 Bg2 f1R Ne2 f2 Ng3 Rg1 Nf1 Qg5 Nc3 Nf6 Na4 Nd5 Qe2 Nc3 Bf3 Nc6 b8N Nb1 Qe1+ Kc4 b4 Kd3 b5 Ne7 b6 Nf5 b7 Rg4 Kf7 Qf6+ Ke8 Rg6 d8B Rh7 d7 Bc5 e6 Be3 e7 Rh4 Nc3 Rc4 Ra5 Rc7 Na4 Rc3 Bb6 Rc7 Ng3 f1Q Kd8 Qf2 Rf1 h1Q Bd4 Qf7 e8B h2 Qb4 Qe6 Qe7 Qf6 Bg4 Qhc6 Bf7 h1B Bd5 Bg2 Bdf3 Qcd6 Rh1 Bf1 Rh5 Qf4 Bb6 Qh6 Bd4 Be2 Nf1 Rc3 Ke8 Rc7 d8R Rc3 Rd7 Rc7 Bcb2 c1R Kd8 R1c3 Bc1 Kc2 Be5 Bb5 Bh2 Rb3 Bg1 Rb2 Na6 Rc3 b8R Rc7 Rb7 Rb8 Rd3 Rc3 Rc7 Rb7 Rcd7 Rbc7 Nb8 R3c6 Rb3 Rc3 Rd4 Be2 Rf4 Kd1 Na6 Ke1 Nb8 Nh4 Rff5 Bb5 Rf4 Qe6 Rf6 Nf5 Rf7 Qf6
N2B3k/6qb/3KQ2r/r3r1Nn/1r1PnBRr/1R3r1n/pRN3R1/BB4b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 b4 Kg7 e4 a4 d3 c4 d6 f3 g5 f2 g6 c3 b6 h3 d7 h4 b7 c2 b5 f4 b6 a3 Ke6 h2 e5 f3 Qe1 h3 Be3 c1R Ra2 Rc5 Rb2 a2 Bf4 Qg5 Na3 Raa5 Nc2 Na6 b8R Nf6 b7 Nh5 Qe4 Kg8 g7 Rh6+ Qg6 Rd5 Qf6 Kh7 g8R Bc5 Rb3 Qg2 Rg4 Qg3 Be2 f1R Bd1 f2 Nf3 Rd4 Rg1 h1N Rg2 h2 Ng5+ Kg8 Bf3 Re1 Be4 Rb4 Kd5 f1R d8B Bd4+ Kd6 Bf5 e6 Bh7 e7 Rf3 e8N Nf2 Nc7 h1R Na8 Nh3 Qe6+ Kh8 Bf5 Bg1 Be4 Qf2 Bf5 Qa7 Be5+ Nf6 Ba1 Nc5 d4 Re5 Na3 Nf4 Rc3 Rba4 Bb1 N6h5 Rcc2 Rh4 Rb2 Nh3 Nc2 Rb4 Rc8 Nd3 Rc3 Nc5 Rcb3 Re2 b8B Qg7 Kc6 Re1 Bf4 Re5 Kd6 Ne4+
1n1rNqr1/1b1BBn2/2p1R1r1/1B1K4/N1N3PR/QB2r1R1/1b3r1N/2k3br w - - 0 1 illegal: No possible last move
B2Rn1N1/4Q3/BP4rB/1Nrr1B1q/k3n3/4b2b/1RrrR1Np/1rn2K1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 b4 f5 g4 a5 e5 c5 d6 a4 b6 Kc6 e6 f3 d7 f4 e7 h3 e8B c4 g5 Kb5 d5 f2+ Ke2 c3 g6 h2 b7 c2 d6 a3 g7 a2 Bg2 f1R Bg6 h4 Bf5 h3 Qe1 Qa5 d8N Na6 b8N Nc5 d7 Rh5 Ne6 Ka4 d8R Nf6 g8B Ra6 b5 Bh6 Nc6 Ne8 Ne7 Ne4 Na3 Bd7 Qh4 Rd1 Rb1 a1R Rb2 Rd5 Kf1 f3 Ne2 f2 Ng3 Ra2 Nf4 Rg6 b6 Be6 Bd2 c1N Nb5 Bg5 Rg1 h1R Bh7 h2 Ng8 Bh6 Qe7 Bd7 Bf3 Bc8 Ng2 Be3 Rb3 Rc2 Rb2 N4d6 Bd3 Bh3 Bf5 Rdc5 Ba8 Ne4 Bc8 Rhd5 Ba6 Rh6 Bf5 Rg6 Rd7 Qc3 Rd8 Qh8 Rb3 Qh5 Rb2 Bd4 Bg5 Be3 Bh6 R2c4 Rd2 Nb3 Rb2 Rg4 Ke2 f1R Bfc8 Rb1 Re1 Rg6+ Bg4 Rf1 Nh1 Rf3 Bf5 Rcc1 Rd1 R1c2+ Rd2 Nc1+ Ke1 Bf2+ Kf1 Rfd3 Re2 Be3 Qf8 R3d4 Qe7 Rdd2
2r3nq/1RN3B1/N2r3R/B1R1Nrr1/5BnK/2Q1Pprn/1bN3nk/5B1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 d6 a5 d7 h5 b6 f5 b5 c5 g5 c4 b7 a4 b6 f3 g6 Kf4 g7 h3 Ra3 c3 Qe1 h2 Bb2 c2 d4 c1N d5 h4 d6 h3 Rd3 a3 Bf6 a2 Bd4 a1R Qc3 Nc6 b8B R1a5 b7 Rh6 Bb6 Ne5 Bd4 Ng4+ Ke1 Kg3 e3 f4 Na3 Rg5 Nc2 Be7 Bc7 Bf6 b8N Bb7 Na6 Rc8 Rd1 Qe8 d8B Qf8 d7 f2+ Kd2 Be4 Nf3 Nd3 Ke2 Ne1 Rb1 Be5 Rb6 Rd6 Rb7 Bf6 Ne5 Qe8 Bg2 f1R Ba5 Qh5 Bdc7 Qh8 d8N Rf3 Ne6 Bc6 Rg1 h1N Bf1+ Kh2 Bb8 Nhf2 Nec7 Rg3 Rg2+ Kh1 Rh2+ Kg1 Ne6 Bh1 Nec7 Ne7 g8R f3+ Kd2 Rf5 Rg5 Ng8 Rh5 Nfd3 Rh6 Nf4 Rf2 h2 Re2 Ned3 Re1 Rg5 Rc1 Nh3 Kd1 Ne1 Kd2 Ng2 Kd3 Ne1+ Ke4 Rg7 Kf5 Rf7 Kg6 Bg7+ Kh5 Rf5+ Kh4 Rg5 Nf7 Rf5 Qb3 Be5 Ba1 Bb2 Ne5 Re6 Qb4 Ngf2 Ng6 Rgg5 Ne8 Bg2 Qe7 h1R Qa3 Bf6 Ncb4 Ng4 Bf4 Rd6 Nec7 Rh2 Qd3 Bh1 Rc5 Rg2 Nc2 Rg3 Bae5 Kh2 Bb2 Bd8 Bg7 Bf6 Qc4 Ba1 Qc3 Bb2 Ne5 Ng2+
bb1BB3/2RqR1Rb/knn3N1/B2QNpb1/4RNr1/2nK4/P5r1/n3Nb2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 e4 b5 h4 c5 d6 Kc6 d7 Kb6 h6 f3 d5 b3 h7 g4 e5 c4 h5 f2 d6 b4 e6 g3 h6 c3+ Kd3 g2 e7 c2 e8N b2 Rh4 b3 Nc7 Nf6 Re4 Bb7 Nd5+ Ka6 Bd2 Rg8 h8R Be7 h7 Rg4 Ba5 Nc6 Na3 b1N Re8 b2 h8N Nc3 Ng6 b1B Nf3 g1B Ne1 Bh2 Ndf4 Nfd5 Nc4 Bg5 R8e7 Nb6 Nce5 f6 Be2 f1B Qd2 Qc8 d8R Qd7 Rc8 Bg3 Rc7 Rg8 Qd1 Ba8 Rg7 Qe7 d7 c1N+ Ke3+ Bd3 d8B Qd7 Qb3 Bh2 Qd5 Nb3 Bd1 Rg2 Bh5 Bg3 Rd1 Na1 Rd2 Bb1 Re2 Bc2 Rc4 Bf5 Re4 Bh2 Kd3 Rg4 Nh4 Bh7 Be8 f5 Nhg6 Bg1 N1f3 Bc5 Ne1 Bd6 Rc8 Bb8 Rc7 Rg2 Re3 Rh8 Nf7 Bg8 Re7 Rh4 Nfe5 Rhg4 Kd2 Rg1 Re4 Bh7 Ke3 R1g3+ Kd2 Rg2+ Ke3 Re2+ Kd3 Reg2+
rNb4k/4n2N/RR1p1rnB/3Nb1nB/1qB1R2B/8/RQ1bPK2/bb2n3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 a5 c4 f5 b4 Kf7 c5 g5 h6 a4 c6 a3 h5 d3 c7 d6 b6 f3 b7 a2 h7 Kg7 b5 f2+ Kd2 g4 Ke3 d2 b6 g3 Bh3 g2 Qb3 f1N+ Kf2 d1B Nf3 f4 Bg4 Bc2 Rh4 Nd2 Nc3 Nd7 b8N Bb1 b7 Ne5 Nd5 Ng6 Ng5 f3 Qb2+ Qf6 Be6 N8e7 Re4 Qc3 Bf7 Rg8 h8R g1B+ Kg3 Bd4 Nh7 Bh3 c8B Qb4 Bce6 Be5+ Kf2 Bg4 Be8 Bh3 B6f7 Bc8 Bb5 Bd7 Bc4 Bc8 Ke3 f2 Be8 f1N+ Kf2 Nf3 Bg5 Nf5 Bh4 Be7 Bf7 Rd8 Re8 Bf8 h6+ Kh8 Re7 N1d2 Be8 Nf4 Bh5 Ng5 Rc7 Ndf3 Rc6 Ng6 Ra6 Ne6 Ng5 Ne1 h7 Kg7 h8B+ Kg8 Bb5 Bh6 Bc4 Nfe7 Nh7 Bd2 Bg7 Ng5 Bh6 Kh8 Nd7 Qa3 b8R Qb4 Rbb6 Re8 Nb8 Rf8+ Rf4 Bbf5 Re4 Rf6 Rc1 a1B Rc3 Rf8 Rca3 Rf7 Ra2 Rf6 Rd4 Bb1+ Rf4 Nf5 Re4 Nfe7+
Bbb1krQ1/1b3pR1/1B1b1qR1/b6r/R1N1B3/n2N2r1/r1P2R2/3K1nNB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 e4 a5 b4 g5 h4 d5 e6 d3 b6 a4 h5 a3 b5 g3 h6 d4 e5 g4 b7 g2 e7 g3 b6 a2 h7 Ra6 Na3 Nh6 Rh2 Ra7 Qg4 d2+ Kd1 Nd7 b8N Nf5 b7 Nb6 Bd3 Nc4 Be4 Qb6 Bb2 Qf6 Nc6 Rg8 h8R Nfe3+ Ke2 d1R b8R Nf1 Nb4 Rg5 Rb6 Rh5 Rh7 Rb1 Bc1 d3+ Kd1 d2 Nd3 Rb4 Rc6 Rb8 Qg8 Ra5 Rg7 Rba8 Nf3 g1B Rf2 Bh2 Ng1 g2 Bb2 Rb8 Bd4 Raa8 Bb6 Ra6 Rb1 a1B Rb4 Bc3 Ra4 Ba5 Re6 Qg5 Reg6 Qf6 Nb5 Na3 Nd6+ Kd7 Nc4 Ke8 Nh3 g1R Ba8 Rgg5 Ng1 Rg3 Be4 Kd7 e8B+ Ke7 Bd7 Bb7 Bg4 Ke8 e6 Ra7 Bgf3 Rd8 Qh7 Bd6 e7 Raa8 Bh1 Rdb8 Bc5 Bc8 Ba7 Rb2 Bc5 Ra2 Qg8+ Kd7 Bd4 Bb7 Ne3 Bdb4 Nc4 Rgh3 Rfg2 Rf8 R6g3 Ke8 R3g6 Bb8 Rf2 B4d6 Be3 Bc8 Bb6 Rg3 Ba8 Kd7 e8B+ Ke7 Bd7 Bb7 Bf5 Ke8 Bfe4 Bc8 Ke2 Bb7 Rb4 d1B+ Ke1 Nd2 Ra4 Bg4 Bc6+ Bd7 Kd1 Nf1 Bce4 Bdc8
1N1bN3/pr2Rnb1/1Rr3Bn/2k2PK1/1NbR2B1/4rr1q/Q2BB3/2rb2R1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kf3 d5 Kf4 Kd7 g4 Kd6 c4 h3 b4 d3 c5+ Kd7 g5 e6 g6 d2 b6 Kc6 g7 h2 b7 h4 f6 d4 f7 h3 b5+ Kd5 b6 d3 c6 Rh6 c7 Nd7 b8N Ba6 c8B Kc5 b7 Bc4 Nc3 Ne5 Nb5 Qd7 Qb3 d1B Nd6 d2 Ra4 Rh7 f3 Nh6 g8B Bg7 f8R Nef7 Ne8 Qd3 Qa2 e5+ Kg3 e4 Kf4 e3 Bg4 Qb3 Ne2 Qc3 Nd4 e2 Nc2 e1B Rb4 Bh4 Rg1 h1R Be2 h2 Ra4 Bd8 Nb4 Nd6 B8e6 Ndf7 Bef5 Qb3 Bg6 Qd3 Re1 Rf1 Rg8 Rf2 Rg1 h1R Rh8 Rh3 Rf8 Nh8 Rf7 Qa3 Re7 N8f7 N8c6 Rc8 b8R Qb3 Rb6 Rc7 Nb8 Rc6 Ke4 Qc3 f4 Qg3 f5 Rf3 Ra3 Qg2 Rd3 Rhg3 Rd4 Qh3 Rd6 Ba4 Rd4 d1R Be3 Rc1 Bd2 Re3+ Kf4 Bc2 Rd3 Bd1 Rd4 Bf8 Bef3 Ne5 Re6 Rb7 Be2 Bg7 Re7 Rgf3+ Kg5 Nef7+
1nRRR2N/2b5/1n3b1k/R1KnN2B/3Np1q1/rNB2r2/Pn4Q1/1q2bbB1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 b5 Kd4 c5+ Ke3 e5 h4 g5 f4 Kg7 d4 c4 d6 g3 f6+ Kh6 f7 g4 f5 b3 h5 b4 d5 c3 d7 b2 f6 g2 d6 b3 Ne2 g3 Qc2 e4 Bd2 Bg7 f8N Ba6 f7 Nf6 Ng6 Rf8 Ne5 Qc8 d8B Qg4 Nd4 Nfd7 Be2 Nb6 d7 Bf6 Be1 Bd3 Nd2 Ra3 Rc1 b1Q Rh2 b2 N2b3 g1B+ Rf2 Kg5 h6 g2 h7 Bh2 h8N Kh6 Rf5 g1B+ Bf2 Bg3 Bd1 B1h2 Bg1 Be1 Qg2 c2 Bc7 Kg7 d8R Bf1 Bd6 Kh7 Bb4 Kh6 Bc3 Bhg3 Re8 Bh2 Bf3 Bhg3 Rd1 c1N Rd2 Nd3 Rc8 Rg8 f8R Rg7 Rfe8 Rf7 Nec6 Bc7 Ra5 Qd1 Be2 b1N Ne5 Nb2 Bf3 Qe6 Bh5 Qeg4 Nb5 Rf8 Rdd8 Qc1+ Kd4 Rf7 Bb4 Nc3 Kc5 Qb1 N5d4 Ncd5 Bd2+ Bg5 Bb4 Rf3 Bc3 Bf6
Nn1B2n1/qR3R2/2r1B2P/1R1NN3/2q2bp1/3bn1bK/1r4Qb/kNn2BR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 e4 Kc5 b4+ Kd4 h4 f5 h5 a5 d6 c5 d7 g6 e5 a4 b6 a3 b5 c4 e6 a2 b7 g3 e7 c3 e8B c2 b6 f3+ Kh3 f2 h6 f4 Qe2 g2 Bf7 f3 Be6 Qe7 d8N Ra6 Nf7 g5 Ne5 Qd7 Ba3 c1N Be7 Rh7 Bd8 Bd6 d3 Qa4 Qc2 Rc7 Qd2 Rc2 Rh2 Rb2 Ne2+ Kc5 Qc2+ Kb4 d4 g1B d5 Qa5 Rg2 Bh2 Nf4 Qa4 Qc6 Kb3 Rg1 Bc7 d6+ Qc4 Bd3 f1N d7 f2 Qg2 Ne3 Nd5 f1Q Be2 Qf7 Bf1 Nc6 b8R Bb7 Nf3 Bcg3 Ne5 Ba8 Rb7 Nb8 Ra7 Bc6 b7 Rb6 Ra5 Bb5 Ra7 Rc6 Ra5 Na6 b8R Qg7 Rb7 Nb8 Bf6 Qe7 d8N Qa3 Rf7 Qaa4 Raa7 Bf4 Rab7 Qa7 Na3 Bhg3 Rb1 a1B Be7 Ka2 Bf6 Re2 Rb4 Bc3 Nb1 Rb2 Be7 Ba6 R4b5 Ka1 Bf5 Bh2 Ra5+ Qa4 Ne6 Bd2 Nec7 Be1 Bd8 Beg3 Na8 Bd3 Rab5 Qc4 Be6 g4+
QR5b/5NB1/1q1n1P1r/Nkq1N1b1/4N1B1/2B1n1Rq/2r1bqp1/K3R1bR w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kd7 d4 g5 Kd2 e5 Kc2 c5 b4 a5 Kb2 g3 h4 e3 h5 e4 f5 a4 b6 g4 b5 c4 h6 g2 b7 a3+ Ka2 e2 b6 e1Q d6 Kc6 d7 e3 d5+ Kb5 h7 g3 d6 e2 Nh3 g1B Bb2 g2 Nf4 c3 Nd3 c2 Bg7 c1Q Nd2 Nh6 Ne5 Qf2 Ne4 Qcc5 Qd5 Ng4 Re1 Nc6 b8N Nd4 b7 Be7 Ka1 a2 Nbc6 Bg5 b8R+ Qb6 d8N Ne3 d7 Ba6 Na5 Ra7 Qa8 Rc7 Ndf7 Rcc8 Kb2 a1B+ Kb1 Qh4 d8R Qh3 Ka2 Rc6 Rd5 Rhc8 h8B Rh6 Rd8 Qa3+ Kb1 Rc2 Rd6 Qc5 Rg6 Bb2 Ka2 Nb3 Kb1 Nd2+ Ka2 Ndc4 Kb1 Bc1 Ka1 Bf6 Rg3 Bd2 Rc1 e1Q Be2 Qf2 Bg4 Nd6 Re1 Bh4 Nd7 Bg5 Bc3 Bc1 Nde5 Bf6 Bg7 Bd2 Bf8 Bh8 f6 Nec4 Nf3 Bg5 N3e5 Ne3 Bg7 Ka4 Qb7 Be2 Qa8 Kb5
2rb4/1nBpR1P1/k6n/1q2r1qB/1Qn2Nr1/2NbR3/1BN2RB1/1Rrn3K w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 h5 f4 e5 Kf2 a5 g4 a4 Kg2 a3 b4 a2 c5 d3 b6 e4 g5 e3 g6 e2 c6 e1R b5 d2 c7 Qf6 g7 Ra3 b7 Qe6 b6 Nh6 f6 Qc6+ Nf3 Ra4 f5 Qb5 Rh3 Re5 Nc3 Nc6 b8R Nd8 b7 Be7 Ne1 Rg4+ Kh1 Rf8 Rd3 h3 Qb3 d1N Rb1 a1N Nc2 h2 Bb2 h4 Qb4 Nb3 Be2 Nd2 Re3 Nc4 Ra8 Rh8 b8B Ba6 c8B Nb7 f7+ Kd8 f8N Rg8 f6 Rh8 Ba7 Kc7 f7 Bd8 Bb8+ Kb6 Ng6 Rg8 f8R Rh8 Rf2 Rhe8 Rg3 Rf8 Kg2 h1R Nf4 Rf1 Kh2 h3 Re3 Re1 Bf1 Rg8 Kh1 h2 Bc7+ Kc6 Rfe2 Rg3 Ng6 Qd5+ Rg2 Bf6 Ra1 Nc5 Nb5 Nc3 Ra5 Nb6 Ra1 Rc1 Rb1 Nd1 Nc3 Bd3 Nf4 Nc4 Be2 Rg6 Bh5 Rf8 Na2 Rg3 Qa3 Kb5 Bb7 Rb8 Ra6 Bd8 Re6 Rc8 Re7 Qc6 Ba8 Qb7 Qc3 Ka6 Qb4 Qb5 Rf2 Rg6 Baf3 Nb7 Nc3 Rgg5 Bfg4 Rg6 Kg2 h1Q+ Kg3 Qe1 Kh2 Rgg5 Bh3 Rg1 Bf1 Rg6 Kh1 Rgg5 Rfe2 Qg3 Bg2 Qg4 Rd2 Qf5 Rde2 Rg4 Rf2 Qg5
B1rn1Q1N/1Nknbp2/3qnP2/2B2N1B/1nqB4/3N2q1/R1n4R/rn3R1K w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Bf4 Be6 Bd2 cxd4 Bh6 d3 Be3 d4 Bc1 Bd5 exd5 Qc8 Nf3 Qc7 Ng1 Qd8 c4 Kd7 b4 e5 f4 a5 Kf2 h5 g4 a4 Kg2 e4 b6 d2 g5 d3 b5 a3 d6 e3 c5 a2 g6 e2 c6+ Kc8 f5 e1Q f6 Nh6 c7 Qe6 d7+ Kb7 g7 Ra7 g8N Nc6 Na3 Qc4 Ne2 Ng4 Ng3 Be7 Be2 Nge5 Nf5 Qb8 Bb2 Nd8 Rh2 h3+ Kh1 h4 Bd4 Ra4 Qg1 d1Q Nc2 d2 Ne1 Ra5 Rb1 a1N Bh5 Nc2 Qg7 Ra1 Qf8 Qg4 Rb2 d1N Ra2 Nc3 Bc5 Nb1 Nd3 Qg3 Bd4 Qa7 c8B+ Kb8 b7 Qa6 Bc5 Kc7 b8R Qb6 Bb7 Qd6 Rf2 h2 Rf1 Ne6 d8N Nd7 Nc6 Nd8 Na5 Qgf4 Ba8 Qe3 Kg2 h1N Nb7 Ng3 Bd4 Ne2 Kh1 h3 b6+ Kc6 Bc5 h2 Bd4 Qeg3 Rc8+ Kd5 Rc5+ Ke6 Rb5 Nf4 Rbb2 Kd5 Bc5 Kc6 Bd4 Qa3 Bc5 Nfe6 Bd4 Bb4 Nge7+ Kb5 Rg1 Ne1 Nbd6+ Ka5 b7 Bc5 b8B Nb7 Qh6 Rc8 Ba7 Nbd8 Nb7+ Ka6 Rbg2 Nc2 Ng6 Be7 Qf8 Kb5 Nh8 Kc6 Rd1 Qad6 Bac5 Kc7 Rf2 Qgf4 Kg2 h1N Ne5 Qe3 Rdf1 Qed3 Re2 Nf2 Rd2 Qdc3 Kg1 Nd3 Kh1 Ndb4 Rh2 Qh3 Nd3 Qhg3
1qq1qQK1/Rr1kr2N/1B3n1q/R1qp4/NnB2bq1/r7/1R1P2BB/4RN2 w - - 0 1 illegal: No possible last move
n1bKB3/RN1n3n/3Rrp1N/1BN3r1/2RQq3/2B3r1/1R1n1P1k/1Nn2nr1 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 Kb4 Kd7 Kc5 Ke6 b4 Kf5 c4 e5 b6 a5 b7 h5 g3 a4 b5 a3 d5 e4 d6 a2 b6 h3 d7 h2 Kd6 e3 c5 e2 c6 Kg4 c7 h4 Qb3 e1N Bg2 d1R Qd5 h3 Bb2 d2 Bc3 Qh4 d8N Ra6 Ne2 Nd7 b8N Rh5 Nd4 Rg5 Bf1 Nd3 Nb7 Ngf6 Ke7 Nc1 Kd8 Nh7 Bb5 f6 Nf5 Rg1 Qd4+ Kf3 g4 Kg2 Nh6 d1N Qa4 Nb2 Qd4 Ra3 Na6 Na4 Nac5 Re1 Rf1 Re6 Rd1 h1N Rd2 h2 Rd1 Rg6 g5 Qe4 Rd2 Rg7 g6 Ng3 Rd3 h1R Rd1 Rf7 g7 Nf1 g8B Rg7 Bf7 Kh2 Be8 Rg3 Bd2 Raf3 Bc3 Rg5 Rd2 Rfg3 Rd3 Nb8 Rd2 Rhg1 Rb2 Bd7 c8R Ne2 Na6 Qh1 Rc4 Qe4 Na5 Bc8 b7 Nb6 Nc5 N8d7 b8R Na8 Rb6 Qe5 Bd2 Nc1 Nab7 Qe3 Rd6 Qe2 Na3 Qe4 Bb4 Nb3 Bc3 Nbd2 Rc1 a1N Rcb1 Nab3 Ra1 Nc7 Nb1 Nc1 Ra7 Na8
6B1/2B2Nrn/nQbq3r/2bNN3/k1P1Rb2/rNpp2R1/Kn6/R3BBq1 w - - 0 1 illegal: No possible last move
2Q4R/1NB4R/b3NB2/1qN1B3/1rP2rkb/p1nbr3/1pRnn1q1/2R1KB2 w - - 0 1 illegal: No proof kernel
b1N1r2r/3NR1qk/2b1Knb1/1R3Brp/2qn2pB/6B1/N2R3P/1NRQ3q w - - 0 1 illegal: No possible last move
4N3/q1Nb4/3B3r/1B1p2q1/b1Q1PN2/bBpRqN1n/3Rr1n1/1KBR1r1k w - - 0 1 illegal: No proof kernel
bB1R4/Nn6/R1Nq1r1k/2qp1P2/Krn2qpN/1B3R2/N4B2/nRbQ3r w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 a5 f4 d5 b4 e5 c4 g5 Kc2 Kg7 Kb3 d3 f6+ Kh6 b6 a4+ Ka3 d2 f7 e4 c5 g3 b5 g2 b7 g4 b6 e3 h5 e2 Nc3 e1R Nf3 g1Q Na2 Ra6 Nh4 Nc6 b8B Bb7 Bc4 Qd6 Bb3 Ba8 b7 Na5 f5 Be7 f8R Bg5 Rd8 Re4 Bb2 Qe3 Bd4 Qef4 Bf2 Rb4 c6 Ne7 c7 Nec6 c8N Ne5 Na7 Rab6 Rf1 Rc6 Rb1 Rcb6 Qc2 d1Q Qc1 Qc2 Qd1 Qg6 Rd6 Qc5 Rd8 Rf6 Rd6 Kh7 Ra6 Kg7 h6+ Kh7 Kb2 Nec4+ Kc2 a3 Kc3 Kg8 h7+ Kg7 Kc2 Kh6 Kc3 Rg8 Kc2 Rg7 h8R+ Rh7 Rd8 Rh8 Bc7 Rh7 b8N Nb7 Nbc6 Rh8 Bb8 Rh7 Nc1 a2 Kc3 a1N Na2 Qe7 Rh1 Qc5 Rh3 Re7 Rf3 Re1 Bc2 Rh1 Bb3 Qh7 Nb5 Qhe7 Nba7 Nd2+ Kb2 Qed6 Ka3 Qe4 Rc8 Be3 Re8 Qef4 Rd8 Rb6+ Ncb4 Nc4+ Ka4 Bc1 Nbc6 Rb4+
NB2R3/1Q2NRbb/B2bRp2/B1npq3/qn6/1B2N2k/2q4P/2rRrn1K w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kg2 Ke6 e4 a5 b4 g5 c4 d5 e5 Kf5 h6 a4 e6 a3 c5 g4 h7 a2 b6 g3 e7 d3 e8R f6 b5 d2 b7 Qb6 c6 Be7 c7 Qa5 b6 Bd7 c8B Na6 b8N Bf8 b7 Ne7 Na3 Rg8 h8R Qa4 Nc6 Bg7 b8B Nc5 Ne2 Kg4 Nc4 Bf5 Ba6 Bh7 Qb3 d1Q Ned4 Qc2+ Bd2 f3+ Kg1 g2 Nf5 Rf8 Nb6 Kh3 Re1 a1Q Re6 Qe5 Ne3 Ra7 Bb4 Rc7 Bfc4 Rc8 Na8 Rg8 Rd8 Re8 Ba5 Rc7 Qb7 Rc8 Nb4 Nc6 Rd7 Rc7 Rf7 Ree7 Na2 Nb4 Bb3 Rc6 Re8 Rc8 Nc1 Rc6 Ne2 Rcc7 Kf2 g1B+ Kf1 Bf2 Nd4 Bg3 Nc6 f2 Rg1 Qh5 Rh1 Bd6 Rg1 Qe5 Rh1 Kh4 Kg2 Rc8 Rc1 f1N+ Kh1 Kh3 Rd1 Qc1 Nc7 Qd4 Nc2 Ncd3 Re2 Qdf4 Na8 Re3 Red2 Re1 Rde2 Qb1 R2e6 Qe5 Ne7 Qbb2 Na3 Rc1 Nc4 Nc5 Ne3 Qc2
1R2Nb2/3n2p1/BqP2R2/1bn2Bk1/QBK2NN1/1B3b2/1p1Rrrqq/1r2R3 w - - 0 1 illegal: No possible last move
6n1/1Nb1nrp1/1pPB1kBr/6R1/1N1NB3/R1RqB2b/2r1QnN1/1Kq2q2 w - - 0 1 illegal: No possible last move, all moves rejected
5R1R/nn1b1Nbb/1n4N1/Rr1R1BK1/b1P1pQ2/1p1N4/1Nq4B/Bkr2b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Kf4 g5+ Kg4 Ke5 a4 Ke4 c4 e5 f4 b5 h4 d5 a5 b3 a6 b4 a7 d3 h6 d4 h5 b2 h7 d2 h6 d3 Ne2 Ne7 Rh4 Nec6 Ng1 Na6 Qc2 d1B+ Nf3 Bd7 Qh2 d2 Rh5 Bg7 Bh3 Kd3 Ra5 Kc2 Nc3 b1B Na4 Rb8 a8R Nc5 Nb2 Rb5 Qg3 Re8 h8B Na7 h7 Be2 Qf2 Re6 f6 d1B f5 Nb7 f7 Qb8 Qe3 Bf1 f8N Qe8 f6 Qg6 f7 Qe4+ Kg3 g4 Kh4 g3+ Kg5 g2 Ng6 g1N f8R Ne2 Bf5 Nc3 Qf4 Nd5 Rad8 Nb6 Ne1+ Kb3 Be3 Qc2 Bg1 Rd6 Bh2 Rd2 Na4 Ka2 Nd3 Re2 Rh3 Re1 Rh6 b3 Rh4 Bg4 Rh3 Bc6 Rd5 Rc1 Rh6 Rc5 Nab2+ Ba4 Rh4 Rb5 Rf7 Bf8 Bf6 Bgh3 h8N Bg7 Rf8 Bg4 Nf7 Bgh3 Be4 Bd7 Rhh8 Na8 Ne7 Bc6 Nd1 Qe2 Nc5 Bd7 Bg6 Bbf5 Nd3 e4 Ba1 Kb1 N1b2 Nb6 Bh7 Qc2 Bg6 Bg4 Bh7 Bh5 Bf5 Bg6 Nc5 Bc8 Ncd3 Bh7 Ng6 Bd7
1n1N1NbQ/BRb2B2/B7/2R1R2r/p1nKn1k1/P5pN/3B3n/rbnq2N1 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Kd7 e4 a5 d4 b5 h4 f5 c6+ Ke7 e5 g5 e6 Kf6 c7 b4 e7 b3 e8B f3 Ke3 a4 a3 b2 h5 g3 h6 g4 d6 Kg5 d7 f2 h7 g2 d5 f4+ Kd4 g3 d6 Ra6 Nd2 b1B Bf7 f3 Rh5+ Kg4 Re5 Nf6 Ne4 Rc6 Bd2 Rc1 Ng5 Ne4 Ba6 f1N N5h3 Nh2 Ra2 Bh6 Rb2 Bf4 Qe1 f2 Rb7 f1N Qe3 Rf8 Qc3 Ne3 h8N Nc4 Ng6 Rh8 Nf8 Rh5 Qa1 Bd3 Qb2 Ra1 Qc3 Bb1 Qb2 Qe7 d8B Be6 c8R Qd7 Bb6 Qd8 d7 Bd5 Nf3 g1N Rc5 Be6 Ba7 Bd5 Bg6 Bg8 Bf7 Ne2+ Kd5 Ned6 Nfg1 Nc1 Kd4 Ne4 Qc3 Qb6 d8N Qb3 Qd3 Qd1 Qf1 Bg5 Qf6 Bh6 Qh8 Bf4 Rf5 Bd6 Rfe5 Bc7
1RR2Nkn/R2B4/1Q1N4/nn4B1/pKb1RP1p/3B1N1q/Bn3b1r/nr3r2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 e5 g4 a5 c4 d5 b4 h5 f6 d3 Kc3 a4 b6 h3 g5 h2 c5 d2 b7 e4 c6 e3 c7 e2 b5 e1N b6 Qd7 Nf3 Bc5 Na3 Qh3 Nb5 Be6 c8B Nc6 b8R Bf2 b7 Nc2 Ba3 Nge7 g6+ Kg8 g7 Ng6 Qb1 Na5 Bd3 Rh6 Be7 Nh8 Ra3 Na1 Nd6 d1N+ Kb4 d4 Ra2 Bb3 Re2 Nb2 Re4 Bc4 Rhe1 h1R f7+ Kh7 f8N+ Kg8 Bg4 Rf1 Rc8 Rb8 Bg5 Rh7 Bd7 Rh6 Bc2 d3 Re7 d2 R1e4 d1N Bd3 Nc3 Rf7 Ra8 b8R Nb5 Rfe7 Nd1 Qb2 Ra7 Qd4 Nb2 Qb6 Rc7 Be8 Rc5 Ra7 h4 Bd7 Rg6 Bh6 Rg2 Bg5 Rh2 Nb7 Kf7 g8B+ Kg7 Nd6 Re5 Rd4 Ree1 Re4 Rb1 Bc2 Be2 Ba2 Bc4 Bd3 Kg8
3bn2N/1r3BRp/1kNr1b1R/5BB1/b1QP4/b2R1n1N/3NK1p1/1qrb3B w - - 0 1 illegal: No proof kernel
1k2Nrq1/2N1b1B1/1Kb1R2N/R2b1rBB/2ppn3/n2RrQ2/2P3Br/2Nn4 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 h5 Ke3 c5 f4 d5 b4 Kd7 g4 Kc7 g5 a5 g6 a4 b6+ Kb7 b5 a3 g7 h3 f5 c4 Kd4 e3 f6 a2 e6 h4 e7 e2 Kc5 e1R f7 d4 Bg5 h2 Bg2+ Nc6 Nd2 h3 Ne2 Rh6 Nc1 Ra5 Ne4 Rh7 Qf3 Kb8 b7 Be6 Nd6 Nf6 e8B Bd5 g8N Na7 Nh6 Be7 f8B Re3 Rd1 h1B Bg7 h2 Bh5 Qg8 Rd3 Ne4+ Kb6 Bc6 Ne8 Bd5 Rb1 a1R Rb2 Bc6 Ra2 Bd5 Nb3 Rf1 Nc1 Nc6 Ra4 Ra8 Ra5 Na7 Qe2 Rf4 Qf3 Rf5 Raa3 Nd6 Qe2 Bf3 Nc7 Bc6 Ka5 Bd7 Bf1 Rh3 Be8 Bd5 Ng4 h1N Bg2 Re3 Qf3 Rh2 Bh5 Nf2 Nh6 Be8 Ka6 Nd1 Ra5 Bec6 Ne8 Ne4 Nf6 Kc7 b8N Bf8 b6+ Kd6 b7 Be8 Kb6 Bec6 Na6 Nb5 b8R Na3 Re8 Rd8 Nfg4 Kd7 Nf6+ Kc8 Re6 Be7 Nc7 Rf8 Nfe8 Kb8
n1n2q1K/1r3bB1/N2p1b1Q/rp5r/R3b2N/2RB3n/1B2N1RP/2NkBb2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Ke4 e5 f4 g5 c4 b5 a4 b3 h6 b2 a5 d3 a6 d2 a7 g4 c5 d6 h7 g3 c6 g2 c7 Bd7 c8R Qb6 Ra4 Qa5 Rc3 Bg7 Ne2 Be6 Rg1 Qd8 Qc2 d1B Bd2 Na6 Qc1 Qe8 Be1 Qf8 Nd2 Bf7 Nb3 Ne7 Qe3 Rb8 a8N Rb7 Nbc1 Nc8 Nc7 Bdb3 Qh3 Bbc4 Qh6+ Bg6 Ne6 Nc7 Nc5 Na8 Na6 b1B+ Rd3 Rg8 h8B Bba2 Re3 Bf7 Rc3 Bac4 Kf3 e4+ Kg4 e3 Kh4 Ke7 f6+ Ke6 f5+ Ke5 Kg4 Ke4 Kg5 Be6 f7 Kf3 f6 Be4 Ng3 B6d5 Bd3 e2 Kh5 Qd8 f8N Bf7+ Ng6 Qf8 Bd2 e1R Nge2 Rd1 Be1 Rd2 Kg5 Ra2 Nh4+ Ke3 Rb4 Ra5 Ra4 Bfg6 f7 Bh5 Rf1 g1N Rf2 Be5+ Bg7 Rh8 Rg2 Bd4 Be5 Nh3+ Kf6+ Ng5 Bg3 Kd2 Bf2 Kd1 Be1 Qe7+ Kg7 Nh3 Nc7 Qd8 f8B Bhf7 Na6 Qe7 Qf6 Rh5 Qh6 Qd8 Kh8 Qf6+ Bg7 Qe7 Bf4 Bf6 Be5 Bcd5 Rg3 Bg2 Bd4 Bf1 Rg2 Bf3 Rc2 Bc6 Bb2 Be4 Rc3 Qf8#
Bb2br1B/2nqkB2/pp1R2r1/r1Rn4/1bN5/1Pr1nKN1/1N1R3N/1Q1R4 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 Ke2 e5 g4 c5 d4 h5 f4 a6 f6 b6 f5 h3 d6 h4 g5 c4 g6 h2 d5 h3 f7+ Kd7 b3 e4 g7 e3 f6 c3 Bg2 c2 Nf3 Be7 f8N+ Ke8 d7+ Kf7 d6 Rh5 Bb2 c1B Nbd2 Rc5 Nf1 Nb4 Ra5 Rc7 Ne6 Rc3 Rc5 Nd5 Ng3 Nc7 Nf4 Bf8 Qc2 Ne7 Nd3 Ned5 Rd1 h1R Qb1 Rg1 Nh2 Bb7 Ba1 Bc6 Kf3 e2 Bb2 Ke6 f7 Bf4 g8B e1R Ba1 Re5 Rd2 Qc8 d8R Be8 d7 Bd6 f8R+ Ke7 Rf6 Rh5 Bf7 Qb7 Ra5 Bb4 Rc5 Qa7 Rd6 Rc8 Nhf1 h2 Bb2 h1N Nh2 Nf2 Rd1 Rc4 Bh8 Ng4 Nb2 Rb8 Rc8 Ra8 d8N Nge3 Nb7 Rc3 Na5 Qb7 Rcd8 Qc6 Bh1 Qd7 Nac4 Rc8 Ngf1 Rg6 Ng3 Nf6 R6d5 Na8 Rc1 Qd6 Kf2 Bd7 Rc6 Qe6 Ra5 Bb8 Rd1 Nc7 Be4 Re5 Kf3 Qd6 Rad5 Reg5 R5d3 Ra5 Rc5 Ba4 Ba8 Nfd5 Rd4 Qe6 Rd6 Rf8 R4d3 Be8 R3d2 Qd7
K1br1b1N/4knnP/QRb3p1/7B/B4nNr/3Rq1Nb/p1R2rN1/4R1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 c5 e4 a5 h4 f5 d4 a4 b4 g3+ Kf3 c4 b6 g6 h5 c3 h6 g2 e5 a3 e6 c2 b5 a2 b7 Ra5 h7 Qd6 b6 Qb4 e7 Nf6 d6 Ra7 d5 Qb2 d7+ Kf7 d8N+ Ke8 d6 Ra8 Qd3 Nh5 Be3 c1N Na3 Bh6 Be2 Ra5 Nc4 Qd4 Nf7 Na6 b8R Bf8 b7 Nc7 Rh2 Kd7 e8B+ Ke6 d7 Nd5 d8R Ke7 Ba4 Ng7 Rb1 Rg8 Nh8 Rc5 Qa3 Nd3 Re1 Qe5 Bd4 Qe6 Ne3 Ne5+ Kf2 Qb6 Bh5 f3 Ne2 g1R Ng3 f4 Ng2 Rh1 Qd3 Qe6 Qa6 Nf7 Rd6 Rc7 Rb6 Qe5 Ra8 Rc6 b8N Rf6 Nd7 Qe4 Rh3 Rh2 Ne5 Qe3+ Kf1 f2 Ng4 Bd7 Rc8 Bc6 Ne2 Rf5 Rf3 Rh4 Ng3 Qe5 Rfe3 Rf6 Ke2 f1B+ Kd2 f3 Rd3 Nf4 Kc3 f2 Kb4 Qe3 Kc4 Be2 Kc5 f1B Rc7+ Bd7 Rcc6 Bf3 Kb5 Bc8 Rc2 Bc6+ Ka5 Qe2 Bg1 Qe3 Qb5 Be6 Ka6 Bc8+ Ka7 Rf5 Qa6 Rf6 Ra1 Rf5 Ne1 Bh3 Ng2 Nd5 Kb8 Rf2 Re1 Nf4 Rbb3 Ke6 Rcc3 Ba3 Rc2 Rd8 Rb6 Bf8 Ka7 Ke7 Kb8 Be8 Ka8 Bc6+
n4BK1/2B2nqR/B1RR3N/1Pp5/b1rpR2N/2Q2Nrr/6q1/br1r1kN1 w - - 0 1 illegal: No possible last move, all moves rejected
2N2N2/1rBN1N1q/PBRb3R/2Qqbb1B/4bnK1/2Rp4/3kp1B1/1nb2r2 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 f4 Kf6 a4 g5 h4 e5 c4 d5 c6 b5 c5 b3 h5 e4 h6 e3 a5 d4 a6 b4 c7 b2 c6 b3 h7 g3 Kf3 e2 Na3 b1B Rh2 b2 Qd2 g2 Nh3 g1B Rg2 g4+ Kg3 Be3 Qa5 Bd6 Nc4 Ra7 Nb6 Be4 Ng5 b1Q Ra3 Ne7 Rc3 Rf8 h8R Ng6 Nf7 Rb7 Qc5 Nd7 Rh6 Ne5 Ba3 Be6 c8N Nf3 c7 Bc1 Rf2 d3 Bg2 Nd2 Bb4 Qa1 Ba5 Nb1 Rf1 Be5 Rf3 Qd5 Nd7+ Kg7 Bb6 Qaa2 Kh2 g3+ Kh3 Qac4 Kg4 Qa4 Bh3 g2 Rg3 g1B Bg2 Bgd4 Rgh3 Bd6 Rh1 Bb2 Rhc1 Qd1 R1c2 B4e5 Rc1 Qh1 R1c2 Qa2 Rc1 Bb3 R1c2 Bc1 f6+ Kg8 f5 Nf4 Na7 Be6 c8B Qd5 Bc7 Rb3 Bb7 Rb2 Bc6 Rb7 Nc8 Qh2 Ndb6 Qh1 Be8 Qh2 Nd7 Qh1 Ng5 Bf7 Bb6 Bg6 f7+ Kg7 Bc7 Rh8 f8N Rh7 Nf7 Rh8 Rh2 Rh3 Bb6 Rf3 Rh6 Rf1 Nh8 Bh7 Bh5 Bg6 f6+ Kg8 f7+ Kg7 Bc7 Qh2 Rb2 Qh1 Rb6 Qh2 Nb8 Kf6 Rc6 Qh1 Kg3 Kf5 Nbd7 Nh3+ Kh4 Kf4 Bb6 Qd4 Bc7 Ke3 Kg4 Kd2 Ne6 Rb5 f8B Qd5 Nf7 Rb7 Be7 Nf4 Nef8 Qh2 Bed8 Qc4 Bb6 Ke1 Rh8 Qh1 Bdc7 Qd5 Rh7 Kd2 Rh8 Bh7 Bg6 Qh6 Bh5 Bhg6 Rh7 Qg7 Rh6 Qh8 Na7 Qh7 Nc8 Bgf5+
3q1bB1/1N2Qq2/R1q3r1/2R2nR1/BkP1N2p/3bpnnr/1BBN2K1/3n1N2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 b4 a5 f4 h5 Kf2 e5 g4 Ke7 g6 Kd6 g7 e3+ Kg2 h4 b6 e4 g5 a4 b5 Kc5 b7 d5 g6 e2 b6 e1Q f5 e3 f6 d3 f7 a3 Nd2 d4 Ngf3 a2 Rg1 Nf6 g8B Qe7 g7 Nbd7 b8R Ne4 b7 Kb4 Bb2 Ne5 Bh7 Rg8 Nh2 Bf5 Rc8 Nf3 b8N Ra6 Nd7 Ng3 Rc5 Rg6 Nf6 Be4 Qb1 Qc1 Be2 Qe6 Bd1 Qc6 c4 Bf5 Nb3 d2 Qe4 d3 Qe7 Qc3 Ne4 Q3f6 Bc2 d1N Nf1 Qfe6 Nbd2 Qed5 Rb1 a1N Ba4 Nc2 Rc1 Ncd4 Ra1 Rh8 g8B Qd8 Nd6 Be4 Nb7 Ndf5 Nb3 d2 Ra3 Bh6 f8N Bd3 Nd7 Bf8 Nf6 Qdd7 Ne4 Qe8 Be6 Rhg8 Ra1 R8g7 Beg8 Qf7 Ra2 Nc3 Ra3 d1Q Nbd2 Qb1 Bb3 Nd1 Ra6 Qa2 Bc2 Qa5 Ba4 Qd8 Kh3 Nh1 Rg5 Nhg3 Kg2 Re6 Nc3 Ne4 Re5+ Nfd6 Qf6 Bb1 Rg3 Rg5 Qe7 Rh6 Bf5 Rhg6 Rc5 Bc2 Kh1 Rg4 Rg1 Rg3 Rg2 Nd4 Kg1 Rh3 Rg5 Nf3+ Kg2 Ng3 Bd3 Ndf5 Nce4 Bb1 Be2 Nf2 Bed1 Bd3 Bdc2 Nd1
b1b4R/2B1kb2/q2N2rB/b4QPp/4pK2/2R1r1N1/2nRNqB1/B2nN2r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 e5 b4 a5 g4 h5 c4 a4 g5 e4+ Kf4 a3 b6 d3 f6 a2 f7+ Ke7 b7 h3 c5 h2 c6 d4 b5 d2 b6 d3 c7 Ra6 Bb2 Ra3 Bg2 Ra4 Ne2 Nf6 Nbc3 Nh7 Ng3 Qd4 Nce2 Nc6 b8R Ra3 b7 Nf6 Rc1 a1Q Qf1 d1B Rc3 d2 f3 Qa2 Ba1 Qg1 Ra8 Nb4 b8B Bg7 f8N Ba4 Ne6 d1B Nc5 Bc6 Nd3 Rh6 Ne1 Ng4 Qf2 Rd6 Qc5 Nc2 Qf5 Qa7 Rf1 h1R Rf2 Rg6 Nc1 Rd6 Rd2 Qg1 Nce2 Nf2 Qd5 Be6 Qf5 Bf7 c8N+ Ke8 Qa5 Rg6 Nd6+ Ke7 Bc7 Bcd5 Rb8 Ba8 Qf5 Bd4 Rh8 Bb6 Ke5 Qc4 f4 Qa6 Qf6+ Kd7 f5 Ba5 Kf4 Rb3 Qe5 Ra3 f6 Rb3 Nc1 Bg4 Nce2 Nd1 Qd5 Bge6 Qf5 Ra3 Rc4 Re3 Rc3 Be8 f7 Ke7 Rd4 B8d7 Rd2 Bc8 f8B+ Kd7 Qc5 Bf7 Bh6 Ke7 Qf5 Qf2+
Q6R/Bb5N/n1P1BN2/b7/3NR1q1/qpRKp2r/rB1bb1N1/2rn1k1B w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 a4 Kf6 h4 Ke5 f4+ Ke4 c4 b5 c5 g5 f6 d5 a5 e5 f7 b3 h6 b2 a6 g4 f5 d3 a7 g3 h5 b4 f6 b3 h7 d4 h6 g2 Ra4 Qe7 Na3 b1R Ne2 Kf3 Nf4+ Kf2 Nc2 g1B Bb2 e4 Rh3 Rc1 Ng2 Na6 Rb4 Bg7 f8N Bb7 f7 Nf6 Nd7 Nd5 f8N Nc3 Nf6 Bh2 Ra4 Bc7 Qf3+ Kg1 Rc4 Nd1 Rh4 Ba5+ Rc3 Rg8 h8R e3+ Ke1 d2+ Ke2 Qd6 N8h7 Bf8 Rf4 Rg3 Kd3 Rh3 Qc6 Bg7 Re4 Kf2 Be2 Qf8 Bg4 Kf1 Be6 Qd6 Kc4 d3 Nd4 Qf8 Nd7 Be5 Ndf6 Bg3 Qa4 Be1 Qa3 Nf2 Qa4 d1B Qc6 d2 Qd5 Rd8 a8B Bf3 Qc6 Nd1 Kd3 Qe8 Qc8 Qa4 Qb8 Qa3 Qa7 Bc8 Bad5 Rd6 Qa8 Rb6 c6 Bb7 Ng5 Rb5 h7 Rb4 Rf8 Ra4 h8B Qa1 Ngh7 Ra2 Ba3 Qb2 Bc5 Qa3 Ba7 Nf2+ Kc4 d1Q Bg7 Bd2 Rc8 Qe1 Rh8 Nd1 Kd3 Qh4 Bf8 Qa4 Ba3 Qg4 Bb2 Qa3 Rf4 Qg5 Ne1 Qh5 Rh4 Bg4 Bh1 Bf3 Re4 Qg4 Ng2 Be2+
b2q4/r1rnRbkp/R1Nb4/K1B3P1/1NQRpn1N/B1q4R/3N4/1Bb1n3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 c5 Kd2 e5 Kc3 a5 f4 a4 b4 h3 d6 e3 f5 a3 b6 c4 b5 a2 Kb4 e4 f6 h2 d5 c3 g5 c2 b7 e2 b6 e1Q+ Nd2 Ra6 Qe2 Qe8 Qc4 Qe2 Ngf3 Qe1 Ba3 c1B Bd3 Qh4 Bb1 Nd7 b8R Qh6 b7 Ne7 Nh4 Qd8 Ra8 Qg6 b8N Bb7 Nc6 Qg7 Ra7 Ng6 Kb5 Nf4 Nb4 Ba8 Rb7 Rb6+ Ka5 Be7 Ra7 Rc6+ Rc7 Kf8 f7 Qe5 Qd3 Qc3 Qc4 Kg7 f8B+ Kf7 Rf1 h1B Rf3 Bg2 Rg3 Bf3 Rh3 Nf6 d7 Bd6 Be7 Bh5 Bf8 Kg8 Be7 Bf7 Bf8 Qc8 d8N Nd7 Rb7 Rc7 Nc6 Qd8 Ra7 Be5 Bc5 Kg7 d6 Re8 Ra6 Re6 Ra7 Re7 Ra6 Nb6 d7 Bd6 Bd3 Ra7 Rb1 a1N Bc2 Qf8 d8R Nd7 Rb3 Rc7 Bb1 Nc2 Rb2 Ne1 Re8 Re6 Re7 Qd8 Rb3 Qf6 Rbd3 Qc3 Re8 Re7 Rd5 Nb6 Rd4 Red7 Re7 Ra7 Qa2 Rdc7 Qc4 Nd7
nRqR1Rq1/4QK1p/3b4/1N1p1kB1/rN1P2bR/q3rn2/5nqN/1N2BB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 a5 c4 d5 d4 a4 e4 f3 b6 h3 c6 f2 b7 a3 c5 f6 e5 h2 c7 a2 c6 Qd7 Qe1 f5+ Kg5 f4 g4 Ra4 Nf3 Na6 b8B Bb7 c8N Nc5 c7 Nf6 Na7 Nb3 c8R Ne8 Nb5 Bd6 Rd8 Qc8 Kh6 Rg8 g5 Nd2 g6 Nc7 g7 Kf5 e6 Re8 g8N Na8 Kg7 Bc6 e7 Bd7 Bc7 Be6 Ba5 Bd7 Ne5 f3 Nc6 Be6 Nb4 Bd7 Rg1 h1N Rg4 Be6 Nf6 Bd7 Bh3 f1Q Kf7 f2 Qe2 Qg1 Bf1 Nf3 Bg5 Qg2 Rh4 Be6+ Kg7 Bd7 Ng4 Be6 Nh2 Bd7 Nd2 Be6 Rb1 a1Q Rb3 Qa3 Nb1 Bd7 Nd3 Be6 Be1 Bd7 Qe3 Be6 Nb4 Bd7 Bc4 f1Q Kf7 Nf2 Rb2 Qe2 Rb3 Qc2 Bf1 Qe4 Rb2 Qe5 Rb3 Qh8 Qe2 Rg8 e8R Rg6 Qe7 Re6 Rf8 Re3 Nc7 Bb5 Rb2 Be2 Nb5 Nd2 Rc2 Bg4 Rc7 Nf3 Rb7 Qc5 Rb6 Qc8 Rb8 Qg8+
r3QR2/B1R1R1pb/4nB1p/1qNP1n2/b1KR4/1r2q3/BN1Nkb1n/B5n1 w - - 0 1 illegal: No proof kernel
3R3n/r2B1PN1/p1qB4/3kn3/2R2pB1/R3brBN/b1Rn1N1q/1b1Q2Kn w - - 0 1 illegal: No possible last move
8/1bB2pRB/rbNp1KrR/BN1bQ3/qq4N1/B1rk4/n3bP2/1R3Nn1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 gxh5 cxb4 a4 e5 axb5 exd4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 h4 g5 c4 a4 b6 g4 c5 b3 h6 a3 h7 d3 h5 a2 c6 g3 b7 b2 c7 g2 h6 d6 Qe1 d2 Na3 d1B Nf3 g1Q Nb5 Ne7 Nh2 Bg7 Rb1 Rg8 h8B a1R h7 Nd7 b8B Nc6 e3 Nb4 Bd3 R8a5 Nf1 Na2 Rh6+ Kg5 Qc3 Be2 Qe5+ Kg4 Bd2 Ra3 Ba5 Rc3 Bc2 Ba6 c8N Qb6 Nca7 Bb7+ Nc6 Qc5 Bbc7 Qb4+ Kd5 Kf3 e4 Bf6 Bg7 Qa4 h8R Qg4 R8h7 Bd8 Bf6 Rg6 Rg7 Qf4 Bg5 Qh4 Be3 Rg5 Bc5 Qf4 Ba3 Qb4 Bb8 Bb6 Bc7 Qg4 Qf5+ Qf4 e5 Qa4 e6 Ne5 e7 Qb4 Rd1 b1B e8N Qa4 Qe6 Qfb4 Nf6 Kf4 Ng4 Nf3+ Bf5 Ng1 Qf6 Bc2 Rb1 Kf3 Qd4 Bcd1 Qc5 Bc4+ Kd4 Ke2 Bh7 Bdb3 Ke4 Bd1 Ng3+ Kd2 Qe5 Bde2 Rhg6 Kc2 Kf4 Kd3 Rh6+ Rg6 Kf5 Bd5 Nf1 Rg5+ Kf6+ Be4 Qf4 Qab3 Qh2 Nc1 Bb2 Ra3 Qe5 Na2 Bg8 Bd5 Bh7+ Qe4 Bb4 Ra6 Ba5 Qa4 Bg8 Qed4 Ba3 Qdb4 Bh7+ Rg6+
3R1nr1/1R2p3/NQN2kn1/p1bR3K/2nn4/R6b/rq1qPBN1/1N1B2Bb w - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 d4 Kf7 b4 c5 f4 a5 Kf2 h5 Kg3 g5 d6 g4 Kh4 h2 f5 c4 f6 c3 d5 c2 d7 g3 d6 g2 b6 Rh6 b5 Ra6 b7 Rh8 b6 Bh6 Be3 c1N Nh3 g1N Nf4 Nb3 Bf2 Nh3 Ng2 Nc6 b8N Nd2 b7 Nc4 Qb3 Be3 Qb6 Nf4 Ra3 Nd4 Nc6 Ra8 Rg1 h1B b8N Ra7 Na6 Rb7 Kg5 h4 Kg4 Ke6 f7 h3 f8R h2 Rf5 Nf6+ Kg5 Kf7 Rd5 Nh7+ Kh4 Ng6+ Kh5 Qg8 d8R Qg7 d7 Kf6 Rg8 Rb8 d8B Bh3 Bc7 Rb7 Rgd8 Rg8 Bd6 Rd7 Bc5 Qh8 Nf4 Qg7 Bg2 Nhf8 Be4 Rc7 Ng2 Rb7 Qa7 Rb2 Bc2 Ra2 Bb3 Nde6 Bb6 Bc5 Bd1 Nd4 Qb8 Qf7 Re1 Qe6 Ba7 Qe3 Qb6 Qd2 Ne3 Be4 Ng2 h1Q Rf1 Qh2 Bg1+ Qhf4 Rff3 Qc2 Rfb3 Qb2 Qc7 Nde6 Nh4 Be3 Rb7 Bh1 Ng2 Bd4 Bc5 Qfd2 Qb6 Bf2 Bd6 Bc5 Bg3 Nd4 Bh4+ Kg7 Bhf2 Kf6
1RBk1n1N/4p1Rb/6PB/2bN1p2/1N2q2K/r3RRrb/1qr1n3/rN4QB w - - 0 1 illegal: No proof kernel
3k1q2/3PN3/2B2rnB/pK1nnbRn/3B4/1pN2r2/NN1R1r1q/1R1Bb1Q1 w - - 0 1 illegal: No proof kernel
8/1b1PNNRq/K3pk2/b1q2N2/4p3/1nr1nB2/1rRb1QRB/NRBbr3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 f4 h5 g4 a5 d4 c6 b4 a4 b6 a3 f5 h3 d6 h2 d7 a2 b5 h4 d5 h3 d6 Qc7 d8N+ Kg7 f6+ Kg6 g5 Rh4 d7 Ra3 b7 Rg3 b6 Rh6 f7 Nf6 Qd4 Nd5 Nd2 Qe5 Ngf3 Nf6 Rg1 h1B Rb1 a1R Bg2 h2 Nb3 Nd5 Qf2 Na6 b8R Ne3 b7 Nc5 Nfd4 e6 Kd2 Bd6 Kc3 Bc7 Kb4 Ra2 f8B Rb2 Bf3 Qd6 Rg2 Ba5+ Ka3 Qe7 Na1 Nb3+ Ka4 c5 Kb5 c4 Ka6 c3 Nf5 c2 Nf7 Qc5 Bd6 Rh5 Nh4+ Kg7 g6 Kf6 g7 Rd5 g8R Rd1 Rg7 Re1 Nf5 Rh3 Rg1 Bg2 Bf4 h1Q Bh2 Rg3 Ra8 Bh3 Rg2 Bg4 Bg1 Qh7 Bh2 Qc3 Kb5 Rh3 b8N Bb7 Nc6 Qd4 Rc8 Qd6 Bd2 c1B Nce7 Bh5 Rc2 Rg3 Bb4 Bd2 Ba3 Ba8 Be2 Qc5+ Ka6 Bc6 Bb5 Bd1 Be2 Nd5 Bh5 Rc3 Bg4 Ne3 Bf3 Ra2 Bc1 Rb2 N5h6 Bd5 Nhf5 Bb7+
3k2BQ/BPb3N1/1Bn3b1/RNNqp3/2n1r3/np1R2qB/3nR3/2K1q1Rr w - - 0 1 illegal: No proof kernel
1q1K4/NprN1rnr/b1B2BRb/3R1pN1/1B3n1P/N3nq2/3B3k/2nQR3 w - - 0 1 illegal: No possible last move, all moves rejected
6BR/Pbp1N3/bB1N2n1/p1q3bB/K1N3nk/1B3QR1/1qR1n3/R3rr1b w - - 0 1 illegal: No proof kernel
br6/1kN1R1N1/r5R1/P2r1pbB/1p1Brr2/B3N2n/1Nnq1Q2/rR4BK w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 g5 e4 c5 h4 Kc7 d4 f5 a4 b5 a5 c4 h6 g4 e5 b3 h5 c3 d6+ Kb7 d5 b4 h7 g3 h6 b2 d7 c2 e6 Qh4 d8B Nc6 e7 Ra7 e8N Ne5 d6 Nd7 Nc7 Ndf6 d7 Ng4 Nd2 b1R Nc4 N8f6 Qe2 Nf2 Nh3 Qg5 Ba3 c1R Nb2 Rc5 Rg1 Re1 Rb1 N6g4 Bf6 Bd6 Bd4 Rd5 Bb6 Rg8 h8B Ra6 h7 Be7 Bhd4 Rd8 Qd2 Re4 h8R Rf8 Be2 f3+ Kf1 Qh6 Rh7 Bg5 Nf4 Nh3 Re7 f2 Kg2 f1R Kh1 Ne3 Bh5 Nc2 Ng2 Rff4 Qf2 Qd6 Ne3 g2+ Kh2 Kb8 d8N Bb7 Bbc5 Ba8 Nde6 Kb7 Ng7 Qd7 Rge1 g1R Re2 Rg3 Kh1 Rb8 Bb6 Qb5 Ree1 Qe2 Rg1 Qd2 Bbc5 Rgf3 Rg4 Bf6 Rg6 Bg5 Ba7 Rg3 Bab6 Rg1+ Kh2 Ne1 Qe2 Kc8 Bdc5 Rdd4 Ned1 Rd8 Rc1 Rg2+ Kh1 Rgg4 Qh2 Rf1+ Bg1 Nc2 Qf2 Rgf4 Bd4 Kb7 Ne3 Rd5 Re1 Ra7 Re2 Rb1 Re1 Ra1 Rb1 Ra6
rR2R2N/1Bb2n2/1bN1p1p1/3Q1b2/k2n3R/B2Bn1n1/2NN1rPq/RK4b1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 fxe4 h5 g6 h6 Qb6 Rh2 Qf6 Rh1 Qg7 hxg7 Ba6 Ra4 Bb7 Ra1 Bc8 Kd2 h5 f4 d5 c4 Kd7 Kc2 a5 b4 h4 f5 d3+ Kb2 a4 f6 d4 b6 Kc6 b7 e3 f7 h3 c5 Kb5 c6 a3+ Ka2 h2 c7 e2 Bb2 e1B Qe2 Bf2 Qe1 Nh6 g8N Nc6 b8N Ka4 b5 d2 b6 d1N b7 d3 Qc3 d2 Qf3 Bb6 Ne2 Ne3 Qd5 d1Q Nd4 Bf5 c8B e6 Nc2 Bfc5 f8R Nf7 Nd2 Nd4 Nc6 Qh5 b8R Qh3 Kb1 a2+ Kc1 Rh4 Bd3 Rf4 Bb7 Rf2 Nh6 Bc7 Rg8 B5b6 Rge8 Qh5 Ba3 Qh4 Rf1 h1N Re1 Ng3 Rh1 Qh2 Kb2 Qg1 Rh4 Qh2 Rd1 a1B+ Kb1 Ne5 Nf7 Bc3 Nh8 Nf7 Ka2 Bb4 Ra1 B4c5 Kb1 Rf1+ Kb2 Ng4 Bc4 Nf3 Rh6 Bg1 Bd3 Rf2 Rh4 Nd4 Kb1 Ne3
2rbb1qB/1N4p1/1p1Q2R1/N4n1K/1Bb1N2r/1n2RB1B/r1brRRP1/6k1 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 h5 Qc2 d5 cxd5 e5 Qf5 exf4 Qxh5 Qg5 Qh7 Qd8 Kf2 Kd7 Kf3 Kd6 a4 Ke5 e4 Kd4 h4 c5 a5 f5 h5 b6 e5 b3 e6 b2 h6 c4 a6 c3 d6 c2 d7 Nf6 a7 Nc6 e7 Nd5 e8R Ne3 Na3 b1R Ne2+ Kd3 Ra2 Be7 Ng3+ Kd4 Rh3 Rb2 Be2 Na5 Qg6 Ng4 h7 Bb7+ Ne4 Nh6 Nc4 Nb3 Na5 Bc6 d3 Ba4 Bd2 c1R Bb4 Rd2 Rg3 Qb8 d8N Rc8 Ndb7 Bd8 Qe6 Bc6 Rg6 Bd7 Rf8 Be8 Ra3 Qe5 Qd6+ Qd5 Kf2 f3 Kg3 Ke3 d4 f2 Bg4 f1B Bh3 Qc4 d5 Bd3 Rff6 f4+ Kh4 f3 Kh5 f2 Ra2 f1B Rf2 Rf8 h8B Rf4 Rb2 Nf5 Rc2 Rc7 Rc3 Rac8 a8B Ra2 Rcc2 Rd7 Rcd2 Bc2 Rde2+ Kd4 Qc6 Rg4 d6 Qg8 Re3 Bc4 Ree2 Re7 d7 Re5 Qe6 Rd5 Qd6 Bf6 Rd2+ Ke3 d8R Bg5 Rd7 Bd8 Re7 Rd3 Rf4 Rd4 Rd3+ Ke2 Rd2+ Ke1 Rff2 Rd5 Rfe2+ Kf1 Re3 Rd3 Rf2+ Kg1 Ng5 Bc6 Ree2 Rc7 Nc5 Rd2 R7e3 Be8 Bf3 Rc8 Ncb7 Rf4 Ne4 Rh4#
1B1nB3/1Rqn1N1N/b3p1B1/n2Nq2p/3R1R1P/2RBrqnK/2Qr4/k6r w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 Ra5 gxf4 Ra3 Bb7 Ra1 Bc8 e3 d5 Bd2 d3 Ra4 d4 Kf2 Bg7 Bc1 d2 Ra6 d3 Ra1 Bd4 exd4 Qd6 Qe1 Qd5 Qd1 Qd8 g4 Kd7 Kg2 Kd6 c4 f5 b4 a5 h4 h5 b6 e6 b5 a4 g5 f3+ Kh3 f2 g6 f4 d5 Kc5 b7 Kb4 c5 f3 d6 a3 c6 a2 c7 Ne7 b6 Qf8 d7 Nbc6 b8R Qf4 d8N Ne5 g7 Ra3 g8B Ba6 c8B N7c6 Qc2 d1Q b7 d2 Bf7 Qe1 Nc3 d1Q Bd7 Qd3 Be2 f1N Bg6 f2+ Nf3 Ng3 Ng5 f1R Ndf7 Rd8 Rc8 Qdd1 Rh2 Rh1 Be8 Rd5 Bb2 Nd7 Nh7 Nd8 Rc6 Qd3 Rd1 a1N Rc8 Nb3 b8R+ Nb6 Rb7 Na5 Ba1 Qde3 B2b5 Nd7 Rcc7 Rd3 Rc5 Rb3 Nd5+ Ka3 Be5 Qc3 Bd6 Qfe5 Bb8 Qc7 Rf1 Qc3e5 Rf4 Qf3 Bc4 Rdd1 Be2 Re3 Bb5 Rhg1 Rd2 Rg2 Rdd4 Rgd2 Bbd3 Rde1 Qc3+ Ka2 Qc2+ Ka1 Rc3 Rh1#
1Q6/R2NBr2/n3n1q1/1b1bqp2/Kn5N/2B1pR1q/NR1bP1n1/BN3B1k w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 g5 g4 c5 f4 cxd4 h4 gxf4 h5 Ra6 g5 Rg6 hxg6 Bh6 Nd2 Bg7 Nb1 Bf8 Kd2 f5 b4 d5 c4 Kd7 Kc2 Ke6 Kb3 Ke5 b6 h5 c5 f3 g7 h4 b5 f2 c6 d3 g6 h3 b7 a4+ Kb4 d2 c7 Kf4 b6 Kg3 Rh2 e5+ Ka5 e4 Kb5 d4 Nc3 d3 Ka5 a3 Nb5 a2 Ba3 Nf6 g8N Qd5 g7 Na6 b8B Rh7 b7 Bb4+ Ka4 Bd7 c8N+ Qe5 Nce7 Ne8 Qb3 d1Q Nf6 Bd2 g8R+ Ng7 Ng6 Ne6 Be7 Rf7 Nf3 Qe1 Rb1 a1N Rg7 Nc2 Rb2 Ncb4 Bbd6 Qc1 b8B Qc6 Bc5 Qcd6 Bd4 Qb6 Rh1 h2 Bc3 Be8 Nd7 Qc6 Bh3 f1Q Ngh4+ Kf2 Rhg1 h1B R1g3 Qg2 Rh7 Qh2 Bf1 Qh3 Bbd6 Qb6 Bf6 Qc6 Bde7 Bg2 Nh2 Kg1 N2f3+ Kh1 Rhg7 Be1 Rh7 d2 Bh8 d1N Nd2 Bf3 Nb1 Ne3 Bhf6 Bd2 Bh8 Bg4 Rf3 Ng2 Bhf6 e3 Rg7 Na2 Qb4 Bh5 Qd6 Bg4 Qb8 N2b4 Bd4 Bh5 Rc2 Ng5 Nb6 Rf8 Bec5 Qeg3 Ra7 Qd5 Ba1 Bhf7 Bce7 Be6 Bg7 Rf7 Rb2 Qe4 Bgf6 Bd5 Bg7 Bec6 Nd7 Ne6 Bd4 Qg6 Bh8 Bb7 N5c3 Bc4 Bhf6 Bbd5 Na2 Qf4 Bd4 Qe5 Bc3 Bb5+
3N1K2/kN2r2R/4pqr1/rR3pR1/4PBB1/4rnn1/3QB1nR/2N1Nqbq w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 a4 c5 axb5 Bb7 h3 Bf3 g5 Bg4 hxg4 cxd4 Kf2 d5 Kf3 Kd7 e4 Kc7 b4 Kb6 c4 h5 g6 a5 g7 f6 c5+ Ka7 c6 a4 c7 h4 g5 h3 Kg4 d3 Kf5 h2 Ke6 f3 Kf7 d4 g6 f2 Ne2 d2 Ra2 d3 Na3 Rh7 Nc2 a3 Ne1 Nd7 c8N+ Kb7 b6 f5 b5 Ra6 Bh3 f1Q Bg4 Ngf6 Nd6+ Kb8 b7 Ka7 b8N Nh5 Rc2 a2 Nb7 a1R Rc7 R1a5 b6+ Ka8 Kg8 Ng3 Nc6 Ne5 Qc2 d1N Qd2 Qd4 Ncd8 Nf3 Kf7 Rh3 g8B Ne3 g7 Qf6+ Ke8 Ng2 Bc4 e6 g8R Ra7 Rg5 Bc5 Rh7 Bg1 Bb5 Rh6 Ba6 Rg6 Bb5 Qb2 Kf8 Qc3 Qb2 Qe5 Bf4 d2 Nc1 d1R Be2 Rd3 Qd2 Rda3 Nc5 Re7 b7+ Ka7 b8R Re3 Rb5 Qa1 Ncb7 Bf2 Rg1 h1Q Rh2 Ngh4 Rgg2 Bg1 Rh3 Qb2 Rgh2 Ng2 Rh7 Qf6+
4N2B/1pb1B1rR/1k1qKbbp/N2rRN2/1Pqbq3/2Q4R/rN6/n3R2B w - - 0 1 illegal: No proof kernel
Kb1RB1R1/1NrBNQ2/1Np1b1R1/2b1q1n1/p2p1rR1/q2P4/n1B3Bk/2r5 w - - 0 1 illegal: No proof kernel
2B3Bb/3qr2Q/1RpN4/1PnRN2b/1RNp3r/Bb1p3k/1r1Bq3/1nR2K2 w - - 0 1 illegal: No proof kernel
5R2/kB1R1n2/Pprb1pq1/2BQ4/3n1RB1/nb6/bp2B1NN/qN1R1rK1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 d4 c5 g4 Kc7 e4 Kb6 a4 h5 a5+ Ka7 g6 c4 a6 c3 g7 b6 e5 f6 e6 h4 e7 h3 e8B f3 g5 c2 d6 h2 g6 b3 d5 b2 d7 Nc6 d6 Nb4 Ra4 Rh6 Qd5 Qe7 d8N Qc7 d7 Bd6 Be3 c1N Ne6 Nc2 d8R Qf7 Nf4 Be6 Bc6 Rc8 Bc5 Ne2 Bb7 Rc6 Ng2 Ned4 Rd7 Na3 Be2 Rh4 Rb4 Nh6 g8B Rf4 g7 Qg6 Bf7 Rf5 g8R Rf4 Kf1 f2 Rf8 Rf5 Bg8 Nf7 Nf3 Rf4 Rg1 h1B Nh2 Rf5 Qe4 Ba2 Qd5 Ng5 Be6 Nf7 Rc4 Rf3 Bg4 Rf4 Nh4 Be4 Rh1 Bc2 Kg2 Rf3 Rd1 Bcb3 Kh1 Rf5 Ng2 Rf4 Rg1 f1Q Rb4 Qc1 Rd1 Rf2 Kg1 Rf3 Nd2 Qa1 Nb1 Nf5 Re4 Nd4 Rf4 Rf1+
qN1b1kq1/1r5p/1p1NB3/4bp2/1R6/nB1KQPn1/1R1B1BRR/1rN1rb2 w - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 d4 g5 h4 gxh4 b6 e5 dxe5 cxb6 Kd2 f5 e4 a5 c4 d5 g4 a4 e6 a3 g5 d4 e7 d3 f3 a2 e5 h3 g6 h2 g7 Nd7 b8B Nh6 g8R Ra3 c5 Ra6 c6 Nc5 c7 Bd7 c8B Bc6 Ne2 Nb7 Be6 Ra8 Qb3 Ra7 Rg2 Nf7 Nbc3 Nc5 Na4 Rb7 Rb1 a1B Rb2 Bb5 Kc3 Ba6 Bd2 Nd6 Nc1 Nce4+ Kd4 Rg8 Nc5 Nc4+ Nd7 Ng3 Bc7 Qc8 Nb8 Na3 Be2 Bh6 Bd1 Bg5 Qc3 Bh4 Bdb3 Rg4+ Ke3 Rb4 Bd6 Qc4 Bc5 Qg4 Qd4 Qg8 Qe4 Bc4 Kd4 Bg5 Kc3 Bb5 Bf2 Bf6 Qf4 Re4 Qg5 Re1 Qe3 Bg5 Rhg1 h1Q Rh2 Ba6 Rgg2 Bc4 Bd7+ Kf7 e8N Kf8 e6 Bd8 Nd6 Ba6 Rh4 Qh2 Rb4 Qh5 Bc8 Qe8 Rh2 Bc4 Kd4 Qa4 Kc3 Qa8 e7+ Kg7 e8R Ba6 Re5 Kf8 Bce6 Bb5 Kd4 Ba6 Bc3 d2 Re4 d1R+ Bd2 Bf1 Rg4 Bg2 Kd3 Bh3 Na2 Rb1 Nc1 Bg2 Ra2 Be5 Rb2 Ne2 Rg7 Bf1 Rgg2 Ng3+
qbK1rknN/5p2/3b2r1/1rpBp2q/RBBNPq1n/3N3N/1RR2B2/6Q1 w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 d5 g4 b5 axb5 dxc4 g5 Nc6 h3 Bg4 hxg4 Nb8 Kf2 c5 Kf3 a5 Ke4 h5 Ke5 a4 d4 e6 b4 a3 g6 h4 d5 a2 b6 f3 g5 c3 b5 h3 g7 f2 d6 c2 d7+ Ke7 g6 h2 b7 Ra3 b6 Rh7 Nd2 Ra7 Nc4 Ra3 Be3 c1B Nb2 Ra6 Nh3 Qe8 Nd3 Ra8 d8B+ Kd7 Bdg5 Nh6 g8B Ra7 g7 Na6 b8R Qd8 b7 Rh8 Bh7 Ke8 g8N Nc7 Ne7 Nb5 Be4 Ra6 Bd5 Nd4 Ng6 Ng8 Bd2 Nf5 e4 Qc8 Bb4 Nh4 Be3 Be7 Be2 f1Q Bf2 Rb6 Rg1 h1Q Rg2 Rb5 Qe1 Rh6 Nh8 Kf8 Rh2 Rg6 Rg2 Bd8 Kd6 Bc7+ Kc6 B1f4 Rh2 Qfg2 Qg1 Bfd6 Bf1 e5 Be2 Kg7 Bf1 Qf8 Kd7 Qg3 Rg2 Qf4 Rh2 Qe7+ Kc8 Kf8 Ne1 Rg4 Bfc4 Rg6 Nd3 Qeg5 Ra8 Qgg3 Rb1 a1R Ra4 Bb8 Rb2 Qhf3 Rg2 Qh5 Rc2 Qge3 Rh2 Qc1 Rg2 Qa3 Rb2 Bbc7 b8N Ra2 Nc6 Bb8 Nd4 Ra1 Qh1 Rg1 Rh2 Re6 Rc2 Rgg6 Qg1 Re8+ Kd7 Qa2 Rb2 Qf6 Be3 Rc8 Ra6 Rg7 Rhc2 Rg6 Bf2 Re8 Ra8 Qf4 Ra7 Re7+ Kc8 Qa4 Rd7 Qa8 Ra7 Ree6 Ra4 Re8+
1BN2rn1/qN1B1p2/Rn2N3/1p1R1b1n/P3nbrQ/R1K1b3/p3B3/1k3B1R w - - 0 1 illegal: No proof kernel
2N1r3/2KbBp1n/2q1RR2/1pN1P2k/3bnr1r/1pNrR3/n5QB/1B2BN2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 g5 Kf3 b5 Ke4 c5 Ke5 g4 h4 g3 d4 f3 e4 c4 a4 c3 d6 b3 d7+ Ke7 h6 c2 a5 f2 d5 g2 a6 Ra7 h5 Nf6 h7 Rb7 h6 Qa5 d8B+ Ke8 d6 Bf5 a7 Qa3 a8N Qa4 Nf3 g1N Rh3 Qb4 Qe2 Ra7 Bf4 c1R Be7 Ra4 Nc3 Na6 Bh2 Qc4 Nb6 Nc5 Nc8 Ra5 Nd2 Qb4 Re3 Ra8 Ra6 Bg7 Bg2 Rc2 Nf1 Bd7 Bh3 Qa5 Bf5 Qc7 Qg4 Ne2 Qg2 Rd2 Rb6 Rf8 h8B Rd3 h7 Ra4 Ra6 Nc1 Bg6 Bh6 Bg7 Qc6 h8R Bg5 Rh6 Na2 Bf5 Nh7 Re6 Rh8 Bgf6 Bh6 Bh4 Bg5 Nd2 f1R Be1 Rh1 Nf1 Bf6+ Kf4 Rdd4 Bhg3 Qb7 Re5 Be6 Rc6 Rh6 Bh2 Kd7 Bg6 Re8 Ra6 Bh3 Rf5 Ke6 d7+ Rd6 Rb6 Bg4 Rc6 Rh4 d8N+ Kd7 Ra6 Qd5 Nb7 Ke6 Bf8 Bh8 Re5+ Kf6 Be7+ Kg7 Rf5 Qc4 Ke5 Rd1 Rf4 Bd7 Re6 Kh6+ Bf6 Rb1 Kd6 Rd1+ Kc7 Rd4 Bf5 Kh5 Be7 Rd5 Nd1 Ba1 e5 Rd4 Bc2 Rd3 Bb1 Qc1 Rff6 Raf4 Ra6 Qc4 Rae6 Bd4 Nc3 Qd5 Na7 Ne4 Nc5 Qa8 Nc8 Qc6+
1B5R/2prN1NR/P2B3n/1KbR1n1R/6p1/kb3pn1/B1BQbq2/2r3Nb w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 e4 Kd6 Ke2 Kc5 Kd3 g5 a4 b5 d6 f5 a5 b3 a6 Kb4 e5 f3 h6 b2 h7 g4 d7 f2 e6 f4 h5 f3 e7 Bb7 e8B Bh6 Nc3 b1N Nd5+ Kc5 Bg6 b4 Ne7 b3 Ra5+ Kb4 Rd5 Bf8 h6 b2 Rhh5 Ka3 Kc4 Nc6 d4 Nd2+ Kb5 Ne4 Qd2 Ng3 Bc4 f1B Bc2 Bg2 Ba2 Qb8 d8N Qa7 Ne6 Rd8 Ng7 Bh1 Qg2 Ba8 Be3 b1B Qh2 Rd7 Qd2 Ne5 Bf2 Ng6 Be3 Nh4 Bf2 Nhf5 Be3 Nf6 Bf2 Rg8 h8R Bb7 Rh7 Rh8 Re5 Be4 d5 Ng8 d6 Bd5 Bd4 Bb3 Rd5 Nf6 Be3 Ng8 Bf2 Qd4 Be3 Qb2 Ba7 Qd4 Bb8 Qf2 Bd3 B1c2 Be4 Rd8 d7 Bd1 Bc2 Nh4 Ng6 Bc5 Ne7 Nhf5 Qe3 Re8 d8B Rf8 Qd2 Rf7 Ng6 Rd7 Be7 Nf6 Bd6 Re8 Bf8 Ng8 Bd6 Re4 Ne7 Rc4 Rh8 Rc3 h7 Ngh6 Rd8 Qd4 h8R Qf2 Rh7 Rc4 Rdh8 Rc3 Bcb1 Rc1 Bc2 Be2+
4n2B/kpK1b3/1n1Nb1N1/BpRp1r2/1r1r1P1R/qB4R1/2n4N/2Qr2RN w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g4 f5 gxh5 a6 b5 axb5 exf5 Rh7 Qg4 Rh6 Qd1 Rh8 Kd2 g5 Kd3 e5 Ke4 g4 Kd5 e4 h4 g3 a4 g2 f4 e3 c4 d3 a5 e2 h6 e1N h5 d2 c5 d6 h7 Kd7 h6 Kc7 f6 Bd7 a6 Bg4 c6 Kb6 f7 Nf3 c7 Bf5 c8N+ Kc7 a7 Qe7 Ne2 g1R Rh5 Bg4 Ng3 Qh4 Nh1 Qh2 Bc4 Qe2 Bb3 Be7 f8N Re1 Ng6 Qe3 Ba3 Re2 Bb4 Ne1 Qc1+ Nc2 Rg5 d1R+ Nd2 Bf5 Rg3 Nd7 Rb1 Rb8 a8R Qc3 Ra6 Re4 Rba1 Ra8 Rc6+ Kb8 Rc5 Ra4 Ba5 Reb4 Rb1 Qb2 Ra1 Qa3 Rb1 Bd3 Nf3 Nb6+ Ke6 d5 Nh2 Be4 Nd6 Nf6 Ke5 Rd8 h8R Rf8 h7 Ne8 Ke6 Rf5 Ra1 Na8 Kd7 Ka7 Kc8 Ng7 Rb1 Nb6+ Kc7 Rbd4 Rb8 Bg2 h8B Bh3 Rf8 Rab4 Rf7 Nh5 Rh7 Nf6 Rh6 Re5 Rh4 Be6 Qe3 Rf5 Rc1 R1d2 Rcg1 Rd1 Qc1 Ne8+
3R3B/1p3B1b/N2QqKnp/1rrR1N2/2b1kpr1/1n1R2B1/1rP2b2/N1B2N2 w - - 0 1 illegal: No proof kernel
4rQK1/r3RN2/1N2bk1p/1BbnR1N1/1B1Pb1Bq/1qp2nRb/1R5p/3N4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 c5 Ke4 f5+ Ke5 a5 g4 h6 d4 f3 b4 f2 e4 a4 g5 a3 d6+ Kf7 d7 f4 g6+ Ke7 b6 h3 g7 h2 b5 a2 b7 f3 b6 c4 Ba3+ Kf7 Nc3 Ra4 Nh3 Bc5 Be2 Ra5 Qf1 Qh4 d8N+ Kg6 Re1 a1Q Nd1 Na6 b8R c3 b7 Nf6 g8R+ Kh5 Rg3 Ra4 Ng5 Nd7+ Ke6 Kg6 e5 Kh5 Kf7 Nb4 e6 Qb1 e7 Nd5 e8B Ra7 Rhg1 Qb4 R1g2 Rg8 Bb5 Qb2 Bb4 Qb3 Re2 Rh8 Rb2 Ne5+ Kg7+ Nf7 Bed7 Ne5 Rg1 Re8 Bf5 Re6 Kg8 Re7 Bh3 Kg6 Bg4 Bf5 Rc8 Bd7 b8N Bf5 Qc4 f1B Rc7 f2 Nd7 B1d3 Re1 f1B Nb6 Bh3 Rd7 Bb1 Qf1 Bbc2 Qf4 Nf3 Re5 Bce4 Rc7 Bd7 Qf8 Be6+ Ndf7 Re8 Re7 Kf6
4N2q/2r2R1b/n1p2P1Q/B1qpbR1N/3kB1nN/1p1B1Bb1/8/rbR1K2N w - - 0 1 illegal: No proof kernel
1Q4B1/R3qB1p/1p2RbNK/q1N2b1B/1q1NB3/3R2R1/nPp2r2/1n2krq1 w - - 0 1 illegal: No proof kernel
1B1R1r2/1r1p3q/NkBn1R1R/1B1P1p2/2Q1Bb2/r1KR1n1b/2N1q1Np/1r6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 e4 a5 g4 f5 c4 h5 d4 h3 Kd2 h2 c6 a4 c7 a3 b6 f3 b7 f2 c5 h4 c6 h3 g5 a2 e5 Bc5 g6 Ra4 e6 Bd6 g7 Na6 b8N Qh4 e7 Bf4+ Kc3 Qf6 Ne2 Nh6 g8R+ Qf8 Qd3 Nf7 Qc4 Rb4 Na3 Rb5 Nc2 Ne5 Rg3 Rb7 Rd3 Nc5 Na6 Nf3 d5 Qg8 Bg2 f1Q Bd2 Bg5 Nf4 Qh7 Re1 a1R Re6 Qf2 Rf6 Rf8 Be1 Qe2 Bg3 Nh4 Be4 Nf3 Ng2 Bf4 Rb1 h1R Rb6 h2 Rh6 Kf7 e8R Rhb1 Rd8 Ke7 Rf6 Ra7 Rh6 Nb7 Rf6 Nd6 Rh6 Bb7 c8B Ra5 c7 Bc6 Rf6 Bb5 Bb7 Raa1 Bc6 Rb7 c8B Ra3+ Qb3 Rb8 B8b7 Bc4 Ba8 Rb7 Bb5 Qf2 Re3 Bf1 Rd3 Qe2 Rh6 Nc8 Rbf6 Nd6 Nge3 Bh3 Ng2 Rc7+ Bac6 Rb7 Rc8 Rf7 Rh8 Rf8 Rg8 Kd8 Rh8 Ra2 Qc4 Kc8 Rg8 Ra4 Rh8 Ra3+ Qb3 Bc1 Nab4 Kc7 Rd4 Kb6 Na6 Rg8 Rd3 Nc8 Bb8 Re8 Rg8 Nd6 Rgf8 Bf4 Rg8 Re7 Rc8 Re8 Rd8 Raa1 Qa2 Rf8 Qc4 Ra3+
1nK2Nb1/1N1prpB1/p3qBn1/7q/1N1R1bR1/1Pk1N3/3r2R1/1n1QBn1B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 g4 c4 g3 b6 d3 b7 g2 c5 d2 b3 f3 h6 f2 h5 a6 h7 Be7 h6 Bd6 c6 Bg3 c7 Be5 Nf3 g1Q Bg2 f1N Nh4 Bb2 Nc3 Qf6 Ra2 Qe7 Ng6 Kf6+ Kd5 Qf2 e4 Nc6 b8N Qg3 e5+ Kf5 e6 Qb4 e7 Kf6 e8R Qbh4 Nf8 Nd8 Nc6 Qg6 Kd6 Ne7 Rg1 Bb7 c8N Qhh5 Nb4 Be4 Kc7 Ke5 Nd6 Kd4 Ncd5 Qe6 Bh1 Ndc6 Rg4 Ng6 Nb7 Nb8 Ne3 Kc3 Kc8 Rg8 h8B+ Rg7 Qe2 d1N h7 Ba1 Ba3 Bb2 Qf3 Bc1 Rag2 Bb1 Rd4 Rg8 Bf6 Bd3 Ng4 Bf4 h8B Rg7 Rd8 Rh7 Bhg7 Rh8 Nh7 Re8 Ne3 Re7 Rg8 Ra7 Nd6 Bf5 Nf8 Rc7+ Kd8 Rc5 Nb7 Ra5 Bc1 Ra2 Kc8 Rd2 Rg4 Nb2 Rg2 Nc4 Qd1 Na3 Rg4 Nb1 Ba3 Nh8 Bc1 Bh7 Rg2 Rd3 Rg4 Ng6 Bd2+ Kb2 Be1 Rd2 Rh8 Bg8 Rg2 Qf3 Rh4 Qh5 Rhg4 Kc3
1BbR1N2/p5P1/Nk1N2pn/nr3nn1/qB5N/QprK4/B6R/B3R1bq w - - 0 1 illegal: No proof kernel
1B1qB2N/2N4k/4RKRb/2B1pNpp/1r1rP3/2BqQ2r/RbN3b1/2q3n1 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h3 Nc6 h4 Ne5 h5 Ng6 hxg6 f5 Ra6 fxg4 Ra5 Qb6 Ra1 Qd8 Kd2 a5 Kd3 d5 b4 e5 c4 g3 f4 h6 b6 g2 c5 a4 b7 a3 b8B a2 b5 Nf6 b6 Ng8 b7 Ra6 g7 Kf7 c6 Kg6 f5+ Kh7 c7 Qe8 f6 Rc6 f7 Nf6 g8R Ra6 Bb2 Bg4 c8N Ra3+ Qb3 Bf3 Rg6 Ne4 Nd6 Ra4 Na3 Qd7 Bc3 Ng3 Nc2 Qd8 Nf5 Rb4 Nh3 g1Q Nf4 Bg2 e4 Bg7 f8B Ne2 Bc5 Bf8 Rh2 Qh1 Re6 Ng1 Ng6 Bg7 Rb1 a1B Be2 Bf8 Bh5 Bb2 Ra1 Bg7 Ra2 Bf8 Bba7 Bg7 b8N Bf8 Na6 Bg7 Kd2 d3 Ke3 d2 Nc7 d1R Bb8 d4+ Kf2 d3 Kg3 d2 Kg4 Rf1 Rh3 d1Q+ Rf3 Q1d2 Rd3 Rc1 Rdd6 Qd3 Qa3 Rd1 Qa7 Rf8 Nh8 Rf6 Be8 Rf7 Nfe3 Rf3 Nf5 Rh3 Rg6 Rd2 Rde6 Bf8 Ng3 h5+ Kf5 Bh6 Qb6 Q8d7 Kf6 Qc8 Nf5 Qcd8+ Be7 Nf3 Qe3 Qc1 Rd6 Ng1 Re6 Qe2 Ng3 Rdd4 Nf5 Qd5 Bd6 Qd3 Bc5 Qd8+
3nqRq1/B2k1br1/2R2p2/2p1b3/5RR1/3N1NBB/2P1p1NQ/1Nb1nnqK w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 d5 h4 dxe4 h5 Ra6 g5 Rg6 hxg6 Bg7 Rh2 Bh6 Rh1 Bf8 Rh4 c5 Kf2 e5 Kg2 h5 d4 e3 b4 e4 b6 a4 d5 f6 b5 a3 g7 a2 b7 Nh6 g8R Be6 g6 Ng4 b6 Nc6 b8N Qc8 g7 Bf7 d6 Rh7 b7 Nh2 Na6 Nf3 d7+ Ke7 d8N Ke8 Qe2 Kd7 Rh2 h4 b8B Bd6 Ba7 h3+ Kh1 Qb8 Rf2 h2 Ne6 Qf8 Bd2 Nd8 Bh3 Bc7 Kg2 h1Q+ Kf1 Ba5 Be1 Bd2 Nb4 Bc1 Nd3 Qh2 Rh8 Qg3 g8R Qe8 Rf8 Qg8 Rg2 Rg7 Rh4 Nb7 Rg6 Nd8 Kg2 Nd2 Kh2 f3 Bg3 f2 Kh1 f1Q Qh2 Qf2 Rg5 Nf1 Rf5 e2 Rg4 e1N Nef4 e3 Ng2 e2 Nf3 Qfe3 Rff4 Qd4 Nc3 Qde3 Rb1 a1B Rb6 Bab2 Nb1 Be5 Rc6 Qg1+
4N2R/1p2BR1p/BKn1N1kP/2q1Rqp1/3Bnr1R/1BQ3r1/rb5r/3N3r w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 exf4 Bf1 f3 Nc3 f4 Nb1 Bf5 gxf5 Kf7 Kf2 Ke7 Ke1 Ke8 Kf2 Kf7 a4 c5 h4 g5 d4 c4 e4 b3 e5 b2 e6+ Kg7 e7 c3 e8B c2 a5 Nc6 a6 Bb4 d6 Na7 h5 Nf6 h6+ Kg8 d5 Qa5 d7 Bd6 d8R Nh5 f6 Qa4 f7+ Kf8 Qd3 Bc5+ Be3 c1Q d6 Qc3 d7 Bd4 Nh3 Qcb4 Nc3 Qaa3 Re1 Qbb3 Nd1 Ng3 Be2 Ke7 f8R Qe6 Bf7 Qad6 Nc3 Qee5 Bb3 Nc6 a7 b1R Rc8 Qdd5 d8B+ Ke6 Rf5 Re8 Rf7 Rb2 Nd1 Qf5 Bf6 Rd8 Be7 Rc2 Qd2 Bb2 Qc3 Qc4 B3c5 Rd3 Rh8 Qcd5 Ng1 Re3 Rh4 Qc4 Nh3 Rd3 Kg1 f2+ Kg2 f1R Bg1 Rg8 a8N Rcd2 Bgc5 Rh1 Kf2 f3 Ba7 Rd4 Ke3 f2 Bb6 f1R Nf4+ Ke5 Nc7 Ra8 Bd3 Rfg1 Ne8 Ra2 Ne6 Qb4 Ba6 Rdh2 Qc2 Rf4 Ba7 Qf6 Qc3+ Kf5 Kd3 Qa3 Re5+ Kg6 Bd4 Qf5+ Kc4 Ne4 Kb5 Rg3 Kb6 Qc5+
3Nk3/1p2Bb2/B1pr2r1/1K2Bq2/2R1NRpq/NP1q1B2/3R2qn/1Nb1rQ2 w - - 0 1 illegal: No possible last move, all moves rejected
4RN2/Q1Rn1bn1/3qpNpK/1n1bb2B/5B2/BR2NrP1/1bnp4/2NB2k1 w - - 0 1 legal: proof: e4 c5 a4 a5 h4 f5 d4 cxd4 h5 fxe4 h6 b5 axb5 g6 Rh3 Ra6 Rh1 Rf6 Rh3 Rf7 Rh1 Rg7 hxg7 Ba6 Bd2 Bb7 Bc1 Bc8 Kd2 Kf7 f4 Kf6 b4 Kf5 c4 d5 c5 h5 c6 a4 b6 h4 g3 h3 b7 h2 c7 d3 Ke3 d2 b5 a3 b6 a2 Ne2 Kg4 f5 Nf6 g8N Ne8 f6 Ng7 f7 Rh4 Ba3 Be6 c8B Qd6 Nbc3 Nd7 Rb1 a1B b8B Bb2 b7 Rh7 Rg1 h1B Qa4 Bg2 Qd4 Kh3 Qa7 Kh2 Nd1 Rh5 Bc7 Rf5 b8R Rf4 Nc1 d4+ Ke2 d3+ Ke3 Bd5 Be2 Bh3 Rb3 Bhe6 Re1 Rf1 Bh5 Kg1 Re2 Rf5 Nf6 Rf4 Rc3 Rf3+ Kd4 e3 Bb7 Qa6 Bf4 Qd6 Bc8 Rf1 Re1 e2 Ne3 d1N Ba6 d2 Bd3 Ne8 Bc2 Bg7 f8N Bf7 Kd3 Bh8 Rc7 Nc3 Bd1 Ng7 Kd4 Nb5+ Kd3 Be5 Rb3 Kh2 Rb1 Rf3 Rb3 Bc4+ Ke4 Bb2 Rf1 e1N Rf2+ Kg1 Re2 Nc2 Re1+ Rf1 Re2 Re1 Kf3 Bcd5+ Kg4 Rf1 Kg5 Be5 Kh6 e6 Rf2 Nc3 Rf3 Rf2 Rb8 Nb5 Re8 Bb2 Nf5 Be5 Rb3 Bb2 Ne3 Rf3 N8h7 Be5 Nf8 Ba1 Kg5 Nf5 Ng8 Bhe5 Nf6 Ng7 Kh6 Bab2
BqbNRNBr/5n2/pbKpQ2q/1R2Bq1p/2n3kP/3p1R2/2N5/R1rB4 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 g4 fxg4 a4 e5 axb5 exd4 Kd2 Ke7 Kd3 Kf6 Ke4 h5 Kd5 Kf5 h4 g5 c4 a6 e4+ Kf6 f4 d6 b6 d3 f5 g3 b7 g4 e5+ Ke7 f6+ Kd7 f7 g2 e6+ Ke7 c6 Kf6 c5 Kf5 c7 g3 e7 Qe8 c6 Rh6 Na3 Ra7 Nh3 g1Q Qe2 g2 Nc2 Rh8 Bb2 Qf2 Ng5 g1Q Qe6+ Kf4 Rh3 Bh6 f8N Rh7 Be2 Ra8 Nf7 Qe3 Nd8 Qgf2 Bd1 Nd7 b8R Rh8 Rb5 Ne5 Rg3 Nc4 Rh3 Qg6 e8R Qa7 Re3 Qb8 Bf6 Bd7 c8B Ra7 Bb2 Rc7 Bb7 Bc8 Ba8 Bg5 Bg7 Nh6 Rh3 Nf7 Rg3 Ra7 c7 Qh6 Kc6 Bf6 Re3 Bd4 Rh3 Bb6 Be5+ Ke4 Rg3 Qff4 Rf3 Rb7 Qd5+ Kf5 Qe4+ Kg4 Qe1 Bf5 c8B Qfg5 Be6 Qgg6 Bd5 Bc8 Qe3 Qf5 Qe2 Ng5 Bg8 Nf7 Qe1 Re7 Bf6 Re2 Be5 Rh2 Qe2 Rh1 Qe4+ Qhf4 Qd5 Qh6 Qe6 Rf1 Be2 Rb1 Bd1 Rc1
2Bq1b1Q/1NnP1b2/1N2n3/1p1Bpp1R/q1RrBk1N/1KBprn2/1R4R1/8 w - - 0 1 illegal: No proof kernel
B1n1NR1R/bp1k2rp/3q2r1/n1p4P/NB1N1Bp1/K2RQB2/8/qq1b2N1 w - - 0 1 illegal: No possible last move, all moves rejected
RB2bn2/pr3r2/QNBpB3/3B2N1/1b1K2N1/4ppRN/3PR1qq/n2b3k w - - 0 1 illegal: No proof kernel
2b1r1R1/1P3R1K/4N1p1/1nrp4/qBkn1RB1/bn1p4/nQ3pBN/N4R1B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 a5 c4 a4 e4 a3 b4+ Kd6 h4 a2 e5+ Kc7 h6 Kb6 h5 f3 h7 f6 Kg6 d6 c5+ Kc7 c6 Kb6 c7 d3 e6 f2 h6 f5 e7 f4 e8B f3 Nd2 Nc6 Qb3 Na5 Ba3 Qh4 Qb2 Ba6 c8B Nb7 Bc6 Qf4 Bg2 f1N Nb3 f2 Bg4 Qd2 Rh4 Qf4 Nf3 Rb8 Nh2 Ng3 Rf1 Qc4 Na1 Nf5 Bh1 Nf6 Bcg2 Rg8 h8N d5 h7 Nbd6 Nf7 Rc8 h8R Nd4 R8h7 Nfe4 Ng5 Rc5 Ne6 Bb7 Rb1 Nc3 Rf1 Ka7 b6+ Ka6 b5+ Ka5 Rd1 Qa4 Rf1 Bc8 b7 Rh8 b6 N6b5 b8R Bd6 b7 Re8 Nc2 a1N Bb4+ Kb6 Ra8 Nab3 Na1 Na2 R7h5 Nbc1 Kh7 g6 Rf5 Ncb3 Rf7 Na3 Rh5 Kb5 Rhf5 Kc4 R5f6 Nab5 Rf4 Rc7 Bc3 Ba3 Bb4 Rc5 Rb8 Bd7 Rc8 Re7 Rh8 Bc8 Rg8 Re8
BNK2r2/4p2p/Rb1bn3/n4QNk/NnRR2pb/2p2NP1/2b5/B1B1Bq2 w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 Ra2 fxe4 Ra6 Be6 Ra1 Bc8 h4 g5 Rh2 a5 Rh3 g4 Rh1 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Qd5 Ra2 Qd4 Ra1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 a4 f4 c3 d4 a3 b4 e3 f5+ Kg7 f6+ Kg6 g3 c2 b6 c4 b5 e2 d5 e1B f7 a2 d6 Bb4 b7 Bf5 b6 Nh6 d7 Qc8 d8B Qd7 Nc3 Bd3 Nf3 Qc6 Na4 Bd6+ Ke6 Nf5 Bg2 Nh6 Qf1 Nd7 b8B Ne5 b7 Qe4 Ba5 Qe2 Be1 Nc6+ Kd7 Nb4 Kc8 Bg7+ f8R Bd4 Rd8 Bb6 Rh2 Bf4 Be5 Nf7 b8N Rf8 Bf6 Bd6 Bg7 Kf5 g6 Ng5 Bd4 Ne6 g7 Kg6 g8N Bf5 Nh6 Qf2 Qd3 Qf1 Nf7 Be4 Bdb2 c3 N7g5 Bf5 Bh1 Be4 Re2 Kh5 Re3 Bg6 Re4 Bf5 Rc4 Bg6 Rb1 a1N Qf5 Nb3 Ra1 Na5 Ra2 Be8 Bg2 Bc6 Ba1 Be4 Nh4 Bd3 Ba8 Be4 Nhf3 Bd3 Bcb2 c1B Ra3 Bcf4 Bc1 Bc2 Ra2 Bde5 Ra3 Bf6 Ra2 Rf7 Rd5 Bd6 Rdd4 Rf8+ Kd7 Bd1 Nc5 Nd8 Kc8 Nac6 Ra6 Na5 Na4 Bc2 Nf7+ Bg5 Qd3 Bh4 N7g5 Ba7 Qe4 Bb6 Qf5 Ne6+
6R1/B2Q1p2/2ppPr2/1n1bB3/2Rn1K2/2N1r1NB/R1p4p/bNknBN1q w - - 0 1 illegal: No proof kernel
2r1r1N1/P3Q1p1/Q1b1Nn2/4Q2n/4B2Q/2n1r1N1/5r2/K1kB1RRN w - - 0 1 legal: proof: c4 d5 cxd5 a5 d4 h5 g4 f5 gxh5 f4 b4 axb4 e3 Nf6 exf4 Ng8 f5 Bd7 Qf3 Be6 Qd1 Bc8 a4 c5 dxc5 e6 c6 Be7 a5 Ra7 a6 Qa5 Bb2 Qa3 Bxa3 Ra8 a7 Bf6 Ra2 Ba1 Rxa1 bxa3 Kd2 Kf7 Kc1 Kf6 f4 b5 h4 e5 h6 a2 Kb2 e4 c7 b4 h5 b3 h7 e3 d6 e2 d7 e1N d8Q+ Ne7 h6 Nc6 Qe2 Re8 h8N Nd4 h7 Rg8 Nh3 Be6 c8B Rf8 Bb7 Bf7 Qc8 Rd8 Nd2 Ng2 Ng6 Nc2 h8Q Re8 Be4 Na3 Qca6+ Nc6 Ne7 Bd5 Rg1 Nb1 Nf2 Rac8 Nh1 Nc3 Rc1 a1R Qh4+ Kf7 f6 Ke6 f7 Ra3 f5+ Ke5 f8Q Kd4 f6 Nf4 f7 Ne5 Rb1 Bc6 Ng8 Nh5 Qfe7 Ng4 f8N Ngf6 Qeh2 Ke3 Ne6 Bb7 Be2 Bc6 Bd1 Ra2+ Kc1 b2+ Kc2 Ra3 Qe5 Rb3 Ra1 b1R Rf1 Ra3 Rg1 Rb7 Rf1 Rd7 Kb2 Rd3 Rb1 Rb3+ Ka1 Rb2 Nf3 Re2 Nfd4 Kd2 Nf5 Rde3 Nfg3 Rh2 Rb2+ Kc1 Rg2 Bb7 Rgg1 Rf2 Qf7 Ba8 Qe7 Bc6
2r3nQ/1RQ1qr1b/n2bB2R/2P4B/2r1N3/1B2r1qQ/5K1Q/Nnk4B w - - 0 1 illegal: No possible last move
2nq2b1/RK4kP/1nr1Qq1N/2qp2BR/8/Q1b1QN2/B1r2B2/1B3rQ1 w - - 0 1 legal: proof: f4 h5 b4 c5 e4 b5 d4 cxd4 g4 e5 fxe5 a5 gxh5 f5 exf5 axb4 a4 Qa5 axb5 Qd8 Ke2 Kf7 Kd3 g5 Kc4 b3 Kd5 g4 c4 g3 h4 g2 e6+ Kf6 h6 d6 e7 d3 e8Q b2 b6 d2 b7 Qc7 c5 Be7 h5 Nd7 b8Q Ra5 h7 Ra2 c6 Ra8 h6 Qa7 c7 Qa3 Kc6 d5 Qa7 Qa5 Nf3 g1Q Nh2 Qd4 Ng4+ Kg5 f6 Qd3 f7 Kg6 Qe3 Qe4 Rh5 Qe5 Bc4 Bf6 Qdg1 d1R Ba2 Rf1 Qe6 Nb6 f8Q Ra6 Nd2 b1Q Qfa3 Qbb4 Nf3 Bd7+ Kb7 Qbc5 c8B Ne7 Bd2 Be8 Be1 Bf7 Bf2 Bg8 Bd7 Qed4 Bb5 Nec8 Bd3+ Qe4 Bdb1 Qf5 Q6e4 Bc3 Qe8+ Bf7 Qd7 Re8 h8B Bg8 h7 Re4 Bd4 Qf6 Qe6 Kg7 Nh6+ Rg4 Bh4 Rg2 Bg5 Rc2 Qd2 Qab4 Bf2 Qh4 Qde3 Qd8 Kb8 Qhd4 Kb7 Q4f6 Qa4 Nd7 Bc4 Qfd4 Ra3 Qf4 Bca2 Rc6 Qb3 Qff8 Ra7 Ndb6 Qa3 Qff6
3kr1NN/1Q4r1/R3nR1R/6qQ/r3R2p/Bq1NpNbB/3q3P/5q1K w - - 0 1 legal: proof: e3 b5 Nc3 a5 Nb1 Ra6 d4 e5 d5 Re6 dxe6 d5 Qe2 d4 Qg4 Ba6 Qd1 Bc8 Kd2 d3 b4 Qg5 a4 Qh4 Kc3 d2 Qe2 Qd8 Na3 d1R Bd2 Re1 Rd1 Rxd1 Bc1 Re1 f3 bxa4 e7 f5 e4 g5 Nb1 g4 fxg4 f4 b5 Bf5 exf5 a3 Kb3 Kd7 c3 Na6 Kc2 Nb4+ cxb4 Qe8 Qe4 Qb8 Qe2 Qd8 Kd3 h5 Ke4 c5 Kf3 c4 e8R a4 b6 a2 g5 a1Q g4 a3 Kg2 e4 f6 c3 g6 h4 f7 c2 b7 a2 b8Q e3 b5 Bg7 f8R Bb2 g7 Rh5 g5 Rd1 b6 Rd6 b7 Rd1 g6 Rhd5 Nh3 Rb5 Rf6 Re1 Nf2 Be5 Nd3 Ne7 g8N Nc6 g7 Nd4 Ne7 Qc3 g8N a1R Ng6 Ne6 Ba3 c1Q Nd2 Qb3 Nf3 Qd2 Nh8 Bc7 Qa8 Re5 b8R Qe7 Rg1 Bd6 Rh6 Qg5+ Kh1 Rec1 Rb6 Rc7 Qa6 Ra2 Re7+ Kd8 Bh3 Ra1 Rf6 Re4 Rh7 Rg7 Rhh6 Ra2 Rg4 Bc7 Bf8 Raa4 Qb7 Re5 Ra6 Ree4 Nfe1 f3 Ba3 f2 Nf3 Bg3 Rgf4 Re5 Re4 f1Q+ Ng1 Nc5 Qd1 Re8 Qh5 Qff2 Nf3 Ne6 Ng6 Qfe2 Nh8 Qf1+
3B1knN/n1RqN3/QbB3b1/n1n2NqR/1N3r1R/4r2Q/3R1P2/2b1n2K w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 g4 h5 d4 e5 f6 c5 g5 b3 g6 e4 d6 c4 f7+ Kd7 b6 c3 g7 b2 b7 h3 d5 h2 Na3 b1N Nf3 e3 Bb5+ Nc6 Kf1 c2 Kg2 e2 b8Q h4 Qd3 Nf6 g8N Nc3 Bg5 Ra4 Qb6 c1B Nc2 Rf4 Ra5 Qc7 Ba4 Nb5 Nb4 Nba7 Nd4 Bg7 f8N+ Ke8 Rc5 Bf5 d7+ Kf7 d8R Na5 d6 h3+ Kg3 e1N d7 Rh5 Rc8 Bh7 Bh4 Re5 d8R Qb7 Rd6 Qd7 R8c7 Re2 Qf3 Re3 Ng6 Ke8 Nh8 Kf8 Qa6 Bg6 Ne7 Ng8 Nc8 Bf6 Rh5 Bg7 Nf5 Bd4 Bc6 Bb6 Rg1 h1Q Bd8 h2 Rd2 Qd6 Rg2 Qg1 Nce7 h1N+ Kh3 Ng3 Rh2 Ne4 Rh1 Qg5 Kh2 Ng3 Kg1 Qd4 R1h4 Ne4+ Kh1 Nc5 Qh3 Qd7
QnBnb3/1B3Q1R/qN6/1bP1RR2/2n2R2/bNr1N3/1b2q1N1/1k2rbK1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 f6 h6 g4 Ba6 g5 Qc7 f5 Qd8 fxg7 Bb7 g6 Bc8 Bg5 hxg5 Kf2 d5 b4 Kd7 c4 Kd6 h4 Ke5 f6 Ke4 b6 e5 h5 a5 f7 d3 b7 a4 h6 d2 b5 d4 b6 a3 h7 a2 Rh2 g4 Rh4 d3 Nf3 Qd6 Qa4 d1B Kg2 d2 Be2 Nh6 g8Q Bd7 g7 Bb5 Kg1 Ra5 Rh5 g3 Ne1 g2 Bg4 Be2 Bc8 d1B Rf5 Bf1 Na3 Bh5 Nac2 Qe6 Rd1 a1B Ne3 Ba3 f8R Nf7 Rd5 Nd8 Qf7 B1b2 g8B Qh6 Rc5 Kd4 Rd5+ Kc3 c5 e4 Rde5 Kd2 Rf4 Kc1 Rff5 Kb1 Rf4 Nbc6 b8N Qg6 Nd7 Nb8 b7 Qa6 Nb6 Bg6 Qfc4 Bge8 Bd5 Rg8 h8R Rg3 R8f5 Rf3 Ng4 e3 Rh7 e2 Ne3 Rg3 Bc6 Rh3 Qf7 Rg3 Kf2 g1N N1g2 Nf3 Bd5 Nd2 Kg1 e1Q Bf3 Nd7 b8N Nc4 Bfb7 Qe2 Nc6 Nb8 Nd4 Rh3 Nec2 Rc3 Nb3 Qa8 Nce3 Ra6 Nd7 Re6 Nb6 Qa6 Bf3 Qb7 Qa8 Qa6 Bc6 Rd6 Bf3 Rd1 Bfb7 Re1
N1nRb2k/RQQ1bB2/8/rn1QR3/2q1NRnB/b1r3nK/7P/q2q2Q1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 f4 Kf7 Kf2 g5 Kg2 Kg7 d4 c5 d6 e5 d5 e4 d7 e3 d6 g3 b6 e2 b7 e1B Qe2 g4 Nf3 c4 Qd1 b3 Na3 c3 Ng5 c2 Ne4 b2 Nc4 b1N Ra7 Nf6 Qd5 Rh3 Nb6 Nc6 b8Q Na3 Bc4 Nb5 Qb7 Bb4 Re1 Kh8 Re3 Qc7 d8R Ba3 d7 Ne7 Bd2 c1N Be1 Ne2 Bb3 Nfg8 f6 Nh6 f7 Qc6 f5 Qc4 Qbc6 Bb7 f6 Nc8 Qc7 Bc6 Qb7 Ng8 Bf2 Bfd6 f8Q Be7 Ra4 Ra5 f7 Ned4 Na8 Nf5 Kg1 g2 Bh4 Ng3 Ba2 Bg5 Qfc5 Be7 f8R Bg5 Rde8 Be7 d8Q Bd7 Rf2 Bc6 Ref8 Be8 R8f4 Nh6 Rd2 Ne2+ Kf2 g3+ Kf3 g1Q Qdc7 Qa1 Kg2 Qb4 Qc1 Qc4 Qg1 Qd1 Qf5 Ng4 Rd8 Qa1 Qfd5 Qd1 Nf2 Qa1 Re5 Qd1 Ne4 Qa1 Kf3 g2+ Bg3 Bg5 Qgd1 g1Q Qdc6 Qc2 Bf7 Qc4 Qcd5 Ra7 Qc1 Qe1 Kg2 Bge7 Bh4 Rc3 Qe3 Qec1 Qg1 Ng3 Kh3 Qd1 Ra5 Ra6 Ra4 Rd6 Ra7 Ra6 Rff5 Ra4 Rf4 Ra5
1B2n1RK/Rr3R2/3P2qb/3N2rR/N2Qr1b1/1Qr4B/b4rn1/kB2b1B1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 e5+ f6 h5 Kg6 c5 g4 h3 g5 c4 d3 b3 f5 h4 f7 h2 f6 e4 d6 c3 d7 e3 b6 e2 b7 e1B Ra2 h3 Be2 b2 Qb3 c2 Bg4 Qe8 d8Q+ Nd7 b8B Ra7 Nc3 b1B Nd5 Rb7 Ra7 Rh5 Bcf4 Bh6 Kh7 c1R f8R Rc3 f7 Qe4+ g6 Ne5 Kh8 Nf6 g7 Ba2 g8B Ne8 Bh7 Nc4 Rg8 Rg5 f8R Qg6 Rf7 Ne3 Bfc7 Ng2 Ne2+ Kc5 Ba5 Be6 Bb4+ Kb5 d4 Bc8 Qb2 Kc4 Bc5 Kd3 Qb5+ Kc2 Qa4+ Kb1 Qb3+ Ka1 Qdb6 Rf3 Nec3 Rf2 Na4 Bd7 Bf5 Be6 Bb1 Bg4 Qd8 Qd6 Bhf5 Qg6 Rg1 h1R Bc8 Rh2 Rh1 Rf4 Nb4 Bd7 d5 Ne3 Nc3 Re4 Na4 Rc2 Qb6 h2 d6 Rc3 Nd5 Bf5 Rf1 h1R Rf4 Rgg1 Rh4 Rg5 Rh5 Ng2 Bf2 Rf1 Qd4 Bh3 Bg1 Rf2 Bf5 Bg4 Bc8 Be2 Bh3 Bg4
K5k1/rnN3P1/nQ2rqr1/b4nnb/2QQ1R2/1N2bR2/3RQ3/B2BbR2 w - - 0 1 illegal: No possible last move
1r3QQ1/2bn1N2/R2R4/1nPqN1r1/r1rRK3/1B6/1rRr4/Qnr2QBk w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kd3 h5 b4 e5 c4 a5 f6 Kg6 b6 d5 c5 e4+ Ke2 h4 b7 a4 f7 a3 b5 e3 Kd3 a2 b6 e2 Qa4 e1R Ba3 f3 Bc1 f2 Ba3 h3 Qa7 h2 Nf3 Rc1 Ne1 Nh6 Nf3 Qc8 Bb2 Bd6 f8Q Nf7 Nc3 Nd7 b8R Rg8 b7 Bc7 Qb6+ Nd6 Qa7 Nb5 Ne4 Rc4 Nd6 Rg7 Rd1 a1R Nf7 Raa4 Rd2 Qe8 Rd8 Rb8 Rc2 Qe6 Bg2 Rg8 Ra1 f1R Ra2 h1R N3e5+ Kh7 Bc1 Rf2 Be3 Rc1 Bf3 Rg7 Bd1 Re2 Bg1 Rf2 Rc3 Rb2 Bb3 Rg8 Rc2 Rg6 Ke2 d3+ Ke3 d4+ Ke4 d2 Qa6 d1R Qa8 Ra7 Ra6 Rd2 Rd6 d3+ Rd4 Rc8 b8R Raa4 Rb6 Rb8 Ra6 Rg8 Nd6 Rg7 g6+ Kh6 g5+ Kh5 Qf1 Kh4 Nf7 Rg8 g7 Kg3 Qd1 Kg2 g6 Kh1 Qf1 Rh8 g8Q Rh5 g7 Rg5 Qd1 Rf2 Qa7 d2 Qf1 d1N Qf8 Rd2 g8Q Ndc3+ Kf3 Nb6 R8d6 Nb1 Ke4 Nd7 Rab6 Rab4 Qa1 Ra4 Ra6 Qd5+
1b1b2b1/b5b1/P1Q1rR1N/1bn2QNR/k2B2n1/5B1K/1B2BR1q/2R3qq w - - 0 1 illegal: No possible last move, all moves rejected
2K1q3/2Q2bB1/4R1R1/3R2qb/B1bB1r2/1Rr1b2P/k1q1n3/bN1N1BQq w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 g5 h4 gxh4 f4 exf4 e3 h3 Qh5 h2 Qe2 Ba6 Qd1 Bc8 Bc4 h5 Qg4 h4 Qg6 h3 Qc2 Nd7 Ne2 Ne5 Bd3 Ng4 Rf1 h1B Rf2 h2 Qa4 N4f6 Qd1 Ne4 Nd4 Ng5 Ne2 Nh3 gxh3 Qf6 Nd4 Qe7 Ne2 Qd8 b4 Ke7 d6+ Ke6 b6 Kd5 d7 c5 b5 f5 b7 a5 b8R c4 b6 f3 b7 f4 Bb2 c3 Rg2 c2 Kf2 c1Q Bd4 a4 Rg6 a3 Qg1 Qe8 d8B a2 B8f6 Rh4 Bg7 Be6 Bb5 Qc2 e4+ Kd6 e5+ Kd5 d3 Bf7 e6 Ra3 e7 Rc3 Re6 Nf6 Rd8+ Qd7 e8B Nh5 b8R Ng3 Ba4 Bc5 Rb3 Bg2 Bb5 h1Q Ba6 Qd6 Ba4 Qd7 Rg6 Bf1 Re8 Qc6 Ree6 Ba7 Na3 Qc8 Rd1 a1B Nb1 Qg8 Bc5 Qe8 d4 Qb5 Rd2 Kc4 d5 Bg2 d6 Bb6 Nd4 Ne2 d7 Rg4 d8Q Rh4 Bb7 Qe8 Nb5 Bf1 Bcd4 Qg2+ Ke1 Qg5 Kf2 Bg2 Ba6 Bh1 Kf1 f2 Qc7+ Bc5 Rd3 Bf3 Rd2 Bg4 Kg2 f1B+ Kf2 f3 Rd3 Qf6 Ke3 f2 Ke4 Qfe7 Ke5 Bh5 Be3 Rf4 Rd5 Qh4 Bd4 Qg3 Qa5 Ba7 Kd6 Qg5 Kc7 Bc5 Bdf6 Be3 Bd4 Bg2 Kb7 f1Q Qd8 Qf3 Kc8 Bf1 Rb2 Rb3 N5c3+ Kb4 Bc4 Qfg2 Nd1 Qh1 Nd2 Ka3 Rb1 Rb7 Rb3+ Ka2 Nb1 Ra7 Bd7 Ra3 Ba4 Nc3 Ba6 Bc4 B6b5 Ne2 Ba6 Qb5 Qc7 Qe8+ Rd8 Nc3 Rb8 Bb3 Bf1 Ne2 Rb5 Bc4 Rb8 Qec6 Rd5 Rc3 Rb3 Qe8+
QN4n1/qQ1P3Q/n4q2/k1N1r2n/2Q3Br/4R1BN/1qN4q/bq1KR1n1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 h5 e4 c5 e5 Kc7 e6 Kb6 g5 f5 g6 a5 d6 h4 g7 c4 e7 h3 e8Q h2 d5 c3 d7 c2 d6 f4 Qde2 f3 Ra3 a4 Nh3 g1Q Qc4 g2 Re3 Qf6 d8N a3 d7 a2 Ne6 a1Q Nc5 Na6 Na3 Ra7 Qa8 f2+ Kd2 Qab2 Be2 Qa2 Bg4 Rh4 Bb2 f1Q Be5 Qfa1 Bg3 c1N+ Nc2 Nd3 Ke2 Nf4+ Kd2 Qgb1 Rhe1 Nh5 Ke2 h1Q Kd2 Ne7 g8Q Qbb2 Qh7 Ng8 Ke2 Bd6 Kd2 Be5 Ke2 g1N+ Kd2 Kc7 b6+ Kd6 b7 Kc6 b8N+ Kb6 b5 Ka5 b6 Qh2+ R3e2 Rc7 b7 Rc8 Qe7 Re8 Qh7 Qh1 Re3 Bd4 Qcd3 Re5 Qc4 Qh2+ Nf2 Qb5 Bf4 Qba4 Nc6+ Kb6 Bg3 Nb4 Be6 Qc3+ Kd1 Qa7 Nh3 Na6 Bf5 Qb4 Bg4 Ba1 b8Q+ Qb7 Qc8 Qa7 Nb8 Qbb2 Qcc6+ Ka5 Qcb7 Qab1#
2rq1k1n/P3rb2/3RrQ1K/3r3b/1QB4r/2N1QQBB/1B1b1b1q/N4R2 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ne5 h5 Ng6 hxg6 Ra8 Ke2 c5 Kf3 b5 Kg4 h5+ Kh4 e5 d4 f3 a4 e4 g7 b3 d6 b2 f6 c4 a5 c3 d5 e3 g6 f2 Kg5 c2 a6 e2 a7 e1R Nd2 b1B Ne2 b4 Nc3 b3 Rg1 b2 Nb3 h4 Bh3 f1R Qf3 Re6 Ra6 Rfe1 Rf1 Ne7 g8Q Ba2 g7 b1R Na1 Rb5 Bb2 c1B+ Qe3 Bd2 f7+ Kd7 Qh7 Ng6+ Kh6 Be7 f8B Ke8 g8B Bd7 Bg7 Rc8 Be5 Bc6 Bf4 Kf8 d7 Bc5 d6 Bf3 Bg3 Re7 Rc6 Bf7 Rb6 Bh5 Ra6 Qe8 d8Q Re6 Qd7 Qd8 Qc6 Bb6 d7 Rd5 Qa4 Bc5 Rd6 Re7 Bf5 h3 Qb4 h2 Be6 h1Q Bh3 Nf4 Qf3 Bf2 Qe3 Qh2 Qf3 Qe8 d8Q R1e2 Qdb6 Qd8 Qbe3 Ng6 Bf4 Be8 Bge6 Bf7 Bg3 Rd3 Bc4 Rd5 Qef4 R2e6 Q4e3 Rg8 Qf6 Nh8 Qf5 Rg4 Qf3 Rh4
rr1BR1Q1/2NR1R1b/3K2Rr/k5r1/br2b1bB/1Bn5/2n1P1B1/bQ1N4 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qb3 a4 Qd1 Qf6 Qc2 Qa6 Qd1 Qa5 bxa5 Bf5 Ra2 Bh3 Ra1 Bc8 Kf2 Kd8 Kf3 h5 Ke4 f5+ Ke5 c5 g4 Kc7 d4 h3 g5 h2 a6 Kb6 g6 f3 d6 a3 d7 c4 d8R f4 d5 c3 g7 f2 d6 a2 d7 h4 a7 h3 Na3 f3 Bb2 c2 Bg2 c1R Re8 f1R d8R f2 Bf3 Bf5 Qb3 Nc6+ Kd5 Rb1 Qd3 Nd4 Bg2 Nc2 Rd7 Ka5 b6 Rb8 a8B Bh7 b7 Ne7+ Kd6 Rg8 Bc1 Rb4 Bg5 Nd5+ Be7 Nc3 Nb5 Rh8 g8Q Bg7 Nc7 Bd4 Rd1 a1R Bd8 Re1 Qdg6 f1B Rf7 Ra3 Bd5 Bg2 Bc4 Bc6 Bb3 Ba4 Rd3 Rf1 Qe4 Rf5 Rd1 Ne1 Qb1 Nc2 Rd3 Rg5 Rd2 Rc8 b8B Ra1 Ba7 Rcb8 Bg2 Bf6 Bf2 Bg7 Nf3 Ra2 Re1 h1B Nd4 h2 Ndb5 Ra3 Bh4 Bf6 Bf1 Bf3 Bg2 h1B Rg1 Bg4 Rd4 Bd3 Rd5 Rh6 Rd4 Bh7 Rdd1 Nd5 Nc3 Ra1 Rd3 Ra3 Nd1 Ba1+ Rf6 Nc3 Rg6 Ra2 Rf1 Ra8 Rf7 Rb2 Rde3 Rbb8 R3e7 Rb4 Rd7 Rbb8 Bh3 Be4 Bf1 Rb4 Bg2 Rbb8 Ba2 R2b5 Bb3 Rb4
1N5b/R1b1N3/1R2qk2/3n1q2/rB3R2/RKq1Pp1b/1BnQr1N1/4NQ1n w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 d5 axb5 h6 cxd5 h5 Bh3 exf4 gxf5 Ke7 Bg4 hxg4 Qc2 Kd7 Qd1 Ke8 d4 Kf7 Kd2 c5 Kc3 g5 b4 a5 h4 g3 h5 c4 f6 g2 d6 f3 e3 a4 d7 a3 d5 a2 d6 g4 b6 g3 h6 Ra5 b7 Kg6 h7 Ra6 b5 Kf5 b6 Qe7 d8B Kg5 d7 Ra4 f7 Kf6 Nh3 g1Q Na3 g2 Bb2 Nc6 b8N Nb4 b7 Nc2 Ba5 Qe6 d8Q+ Ne7 Nf4 Qf1 Qe1 g1N Bb4 Nh3 Ng2 Nf2 Qdd2 Bh6 f8N Bf4 Rh4 Nh1 Ng6 Bc7 Rf4+ Qf5 Qec1 Rg8 h8R Qe1 Rb1 a1B Rh7 Rh8 Rg7 Rh2 Qd1 Qh4 Qf1 Qh7 Rd1 Qg8 Re1 Qe6 Rh7 Nd4 Nc2 Bd7 Rb1 Bc8 Nce1 Nc2 Na6 Bd7 b8R Bc8 Rb6 Bd7 Qdd3 Bc8 Nb8 Nd5+ Kd2+ c3+ Kc1 Ra3 Qd2 Ra4 Ne7 Bd7 Nh4 Re2 Nhg2 Be8 Ra6 Bh5 Ra7 Bg4 Rh8 Bh3 Rd8 Nb6 Rd3 Nd5 Kd1 Nd4 Kc1 c2 Ra3 Qc8 B2c3 Kg5 Ba5 Qce6 Rb4 Nc6 Rb6 Ncb4 Bh8 Bae5 Qd4 Bf6 Kb2 c1Q+ Kb3 Qd2 Qc3 Nc2 Bb4 Qd4 Qd2 Qc5 Bg7 Qcc6 Bf8 Bh8 Bg7 Qc5 Ba1 Qd4 Bac3 Kf6 Bb2 Qc3+
N3bRn1/nk1BbQ1b/4r2r/4q2q/n1Br4/1pKB2N1/QBP3N1/4N2R w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 d5 f4 Kd7 g4 Kc7 f6 h5 g6 e5 f5 h4 b6+ Kb7 g5 b3 f7 h3 f6 d3 g7 h2 g6 e4 Ne2 e3+ Kc3 d2 Bb2 Rh6 Ng3 Be6 Bd3 Bd6 f8Q e2 f7 Ne7 g8B e1Q g7 Ra6 Qf3 d1B+ Nd2 Nbc6 Bgh7 Qc8 g8B Qe8 Bhf5 Na7 Qg4 Bd7 Qa4 Bh5 Qa2 Bg6 Bh3 Qe2 Nf3 Bh7 Ne1 Qh5 Rb1 Bb5 Bd7 Bc6 Rf1 h1R Qg7 Rh3 f8N Rh4 Ne6 Rd4 Nf4 Ba3 Bf7 Ng8 Nfg2 Qee5 Bfe6 Bd6 Rf8 Be7 Qf7 Ba4 Bh3 Re6 B7b5 Rh6 Bbc4 Be8 Bg4 Kb8 b7 Rae6 Bgf5 Kc7 b8N Kb7 Ra1 Re4+ Kd2 d4 Na6 Rg4 Nc7 Re4 Bf1 d3 Na8 Rd4 Kc3 d2 B1d3 d1N+ Kd2 Rc6 Bd7 Nc3 Rd1 Na4 Rb1 Nb6 Kc3 Rcd6 Nf3 Rc6 Rh1 Rce6 Nfe1 Na4+
2r1Nq2/KR3n2/bP2Q1N1/k7/n1r2pR1/1BnR3r/R1qQ2q1/N1BN1b2 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kd7 Kd2 a5 Kd3 c5 Kc4 Kc7 b4 Kb6 e4 f5 e5 h5 d6 h4 d7 h3 e6 h2 e7 f4 e8N g2 g6 a4 g7 a3 d5 a2 d6 g3 Ne2 g1Q Qe1 g2 Nd2 Qe3 Rg1 h1B Nc3 Ba6 Nd1 Rh2 Nb3 Qd2 Qe6 Nh6 g8N Nf7 Ne7 Rh3 Ng6 Qc2+ Kd5 Qf6 d8R c4 d7+ Nc6 Bd3 c3 Be2 Rc8 Bc4 Ne5 Kd6 Nd4 Bd5 Ne2 Bc4 Kb7 b6 Qf8+ Kd5 Nf7 b5 Kb8 b7 Ka7 Rb1 a1Q b8R Qaa2 Na1 Qab2 Bb3 Qa2 Rf1 g1N+ Rf3 Rc4 Rb2 Bg2 Rdc8 Bf1 d8Q Nd4 Rd3 Nge2 Ra8+ Kb7 b6 Nb5 Rc5 Ng3 Qdd6 Ne4 Rd8 Qg2 Rbd2 Qb1 Ra2 c2 Rg3 Qb2 Rg4 Qc3 Rc6 Qb2 Qb4 Qb1 Qd2 Nc5+ Qe4 Na4 Re6 Rc8 Re7+ Kb8 Rc7 Nbc3+ Kc6 Qb2 Rd3 Qb1 Bb2 c1R Qd5 Qc2 Qe4 Rb1 Bc1 Ka8 Bc4 Rb5 Bb3 Rb4 Qd5 Re4 Qe6 Rc4+ Kd7 Bb7 Rc5 Bd5 Rc6 Kb7 Rc7+ Ka6 Ra7+ Kb5 Rc7 Ra8 Ra7 Bc6+ Kc7 Rb8 Rb7 Ka5 Qd7 Rd8 Qc8 Bd7+ Kb8 Bb5 Ka7 Ba6 Qe6 Rdc8
k1b2nB1/N2n4/q2NQ1Qr/3n1R2/4Pprn/1B1K2b1/2BB1Q1n/R3b1Q1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 e4 Kd7 Ke2 c5 d4 Kc7 g4 Kb7 b6 h5 g6 f5 g7 h4 d6 f3+ Kd3 f2 d7 f4 g5 b3 d5 b2 d6 h3 g6 h2 Ne2 Nf6 g8B Nh7 g7 Qf6 d8Q Nd7 Bb3 Be7 g8B Nhf8 Qe8 Rh6 Nd2 b1N Nd4 Nc3 Nc6 Nd5 Qg6 Ra6 Nc4 Ka8 Rg1 h1N Na7 Ng3 Bd2 Nf5 Rg5 Nh4 Rf5 Bd8 Be2 f1N Bh5 Nh2 Qdg1 Qe6 Bhd1 Bf6 Bdc2 Bd4 Qf7 Bf2 Qfg6 Bg3 Qf2 Rh5 Qg1 Rg5 Qf2 Rg4 Qg1 Nb8 d7 Qd6 d8Q Nbd7 Qdf6 Qc6 Nd6 c4+ Ke2 c3 Qe6 Qa4 Kd3 Qa5 Bb1 c2 Qf2 c1B b7+ Kb8 B1c2 Rb6 Bb4 Bd2 Qg1 Bde1 Bd2 Qa6+ Nc4 Kc7 b8Q+ Kd8 Qa8 Kc7 Qac6+ Kb8 Qcc5 Ka8 Qcf2 Qb7 Qe5 Rf6 Qe6 Qc6 Nd6 Qb6 Qh7 Rh6 Qhg6 Qa6+
kr2R1B1/6N1/r2N4/2Nn1p2/NRQQqn1b/1P1Bb3/KQ4b1/3Qrnr1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 e6 b4 exf5 b5 Bb7 Na3 Ba6 Nb1 Bc8 g4 h6 g5 f6 gxf6 Qd6 Ra4 Qd7 Ra1 Qd8 b3 Qe7 Ba3 Qd7 Bd6 Qe7 Bf4 Qd8 Bg5 hxg5 d4 Kd7 Kd2 c5 Kc2 Kc7 Kb2 Kb7 h4 a5 e4 g4 e5 g5 h5 a4 h6 c4 e6 a3+ Ka2 c3 f7 c2 h7 c1B b6 g3 e7 g4 e8B g2 d6 g3 d7 Ra6 d5 Qe7 d8N+ Ka8 d6 Nh6 b7+ Ka7 d7 Qb4 Rh4 Rf6 Ne6 Qa4 d8Q Qe4 Nc3 Nd7 b8N Nb6 Q8d4 Ng4 Nge2 g1R Na4 g2 Nec3 Nh2 Bd3 Ka8 Nb5 Bb7 Nd6 Be3 Ng7 Be7 f8Q Nf1 Qg8 Nd5 Na6 Re6 Rg4 Bh4 N6c5 Bc6 Qf7 Rf6 Bd7 Rb8 h8Q Bb7 Be6 Bc6 Kb1 a2+ Kb2 Rg6 Qc7 Bb7 Bg8 Rh6 Rc1 a1R Rc2 Rc1 Ka2 Bc6 Re2 Re6 Qd2 Re1 Qd1 Bb7 Nde8 Ra6 Nd6 Rh1 Qc6 g1N Qb5 Nh3 Qbc4 Rg1 Qb2 Qf3 Re4 Nhf4 Re8 Bef2 R2e4 Be3 Qbd4 Be7 Qh2 Bh4 Qhb2 Qg4 R4e7 Bc6 Rb7 Qf3 Rb5 Qe4 Rb4 Nc7 Qf2 Qe7 Be2 Bg2 Bd3 Qe4 Qfb2 Ncd5
1q4B1/RB1n3K/q2b2rN/B1N2b1N/2rNR3/1QP3Q1/n1qprr2/1B2k3 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 Kf7 Kd3 d5 f4 h5 g4 e5 b6 b3 f6 Kg6 f5+ Kf7 g6+ Ke8 g7 Kf7 b7 h4 g5 b2 Nc3 b1Q Ra7 h3 Nf3 h2 Ne2 Qa1 Nh4 Nc6 Ng3 Bd6 Bd2 Rh6 Nh5 Rg6 b8Q+ Bd7 Qb3 Rc8 Qf3 Qa3 Rg1 h1R Rg4 Rh2 Re4 Rf2 Qg3 Qaa5 Bg2 Qa6+ Qb5 Qc7 Ba5 Qb8 c3 Rf3+ Kd2 d3 Qb3 Rf2+ Ke3 d2 Bf3 d1Q Bg2 Ke8 f7+ Ke7 f8N Nb4 Ne6 Nf6 g8B Rc4 Bh7 Na2 Nd4 Qc2 Bh1 Bc5 Bf3 Kd6 Bh1 Bc8 Bg2 Nd7 f6 Ba3 f7 Kc5 f8N Bb4 Nhf5 Ba3 Rf4 e4 Nh6 Bb4 Rf5 Ba3 Re5 Bb4 Bf3 Ba3 Kf4 e3 Kg4 e2 Re4 e1R Kf5 Re3 Rb7 Ree2 Ra7 Rc6 g6 Bb4 g7 Rg6 Nc6 d4 g8B d3 Nd4 d2 Nfe6+ Kd5 Qa4 Bd6 Qa3 Rc6 Qb2 Kc4 Qa3 Kd3 Qb3 Rf6+ Kg5 Rf4 Kg6 Rf6+ Kg7 Rc4 Bf5 Rg6+ Kh7 Nc1 Rf4+ Ke3 Nc5 Na2 Bb7+ Rf3 Qh3 Kf2 Re4 Ke1 Qg3+ Rf2 Rf4 Qd1 Bb1 Qc2 Rg4 Nb6 Rf4 Bf5 Re4 Nd7
1BR2N1R/1r5N/q5K1/1kp1QB2/1qR2N2/b4n2/1RPb2n1/bQq1r1bN w - - 0 1 legal: proof: d4 b5 a4 h5 axb5 e5 dxe5 f5 e4 fxe4 g4 hxg4 b6 a5 b3 a4 Bd3 a3 Bf1 Ba6 Bh6 Bb5 Bc1 Ba4 bxa4 Rh7 Nh3 Rh5 Ng1 Rh8 Ke2 d5 Ke3 Kd7 Kf4 Kc6 Kf5 g5 f4 d4 h4 a2 h5 e3 h6 g3 a5 g4 h7 g2 e6 g3 a6 e2 e7 e1Q e8N d3 a7 d2 b7 Qc8+ Kg6 Bh6 f5 Qf2 f6 Qc5 f7 Nd7 f8N Rb8 a8R Qb4 Nc3 Ngf6 Bd3 Ng4 Nce2 Ne3 Rb1 a1B Nh3 g1B Nf2 g2 Bf5 Kb5 Nf4 c5 Qe1 d1Q Rh4 Bhg7 Nh1 Bgb2 Qc3 Ba3 Qe5 Bf2 Nf6 g1B Rb2 Ng2 Bd2 Be3 Be1 Bd2 Bg3 Qc6 Rg4 Re8 Rc8 Qc1 b8Q+ Qb7 Kh6 Rg8 h8R Rg7 N6h7 Rge7 Kg6 Rf7 Qd5 Re1 Qa2 Rfe7 Qe5 Qa7 Qb1 Qa6+ N4e6 Rf7 Rc4 Re7 Qf6 Rf7 Bb8 Re7 Nf4 Ne5+ Kg5 Nf3+ Kg6 Rb7 Qe6 Qa5 Qe5 Qa6+
nbBB1rqN/Q1B4k/2R2Qrp/4b3/b1b2qQ1/4KQP1/2rn1BN1/6R1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 d4 Kg7 f4 e5 b6 c5 g3 h3 d6 c4 f6+ Kg6 f7 e4 b7 c3 d5 c2 d7 h6 f5+ Kh7 f6 b3 d6 h2 Be3 c1R Nd2 b2 Bf2 b1Q Ra6 e3 Nh3 Rc2 Rc6 Na6 b8Q Nc7 Rg1 h1B Qa7 Bd5 Nf4 Bc4+ Kf3 e2 Ng2 e1B Ne4 B8a6 Ke3 Bc3 Qg4 Bab5 Be2 Bg7 f8Q Ba4 f7 Bce5 Bf3 Qe8 d8B Nf6 d7 Rg8 Nd6 Ne4 Qe7 Bh8 Qf6 Nd2 f8Q Rg6 Nf7 Qb5 Qa3 Qg8 Qc3 Bg7 Nh8 Bf8 Be4 Bfd6 Bf5 Rc8 Be6 Na8 Bc7 Rf8 d8B Qd5 Bc8 Qdf7 Ba5 Bb8 Bac7 Qd7 Qd3 Qde6 Qde2 Qf5 Qef3 Qf4+
1qQNqb2/r2RN1N1/3B2Pk/2r2Q2/1pqq1K2/Q1B4N/1b1R3n/Q1rn4 w - - 0 1 illegal: No possible last move, all moves rejected
2B4B/RBkr3P/1q2QpQR/r1q2n1B/4Qn2/5NK1/2QN1rb1/qq3b2 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 f4 exf4 a3 h5 a4 hxg4 axb5 a4 Qb3 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Ra6 Kf2 Ra7 Ke1 Ra8 Kf2 Kd7 e4 c5 h4 g5 d4 c4 d6 f3 h5 a3 h6 a2 e5 c3 e6+ Ke8 h7 c2 a6 Nc6 d7+ Ke7 d5 Kd6 a7 Ba6 e7 Nf6 e8B Nh5 b6 Nf4 b7 Nd4 Rh6+ Kc7 Nd2 Nf5 Bb2 c1R Bh3 Rf8 Bh8 Bf1 Qe2 f6 Qe4 Rc2 Bh5 Bg2 Qe6 Rf7 d6+ Kc6 b8Q Qb6+ Qe3 Rb2 d8Q Rd7 Qe8 Rc2 Qe6 g3+ Ke1 g4 Qbe8 Kb7 Qg6 Kc8 Q3e4 f2+ Kd1 f1B Ke1 Qc5 Ngf3 Kd8 Nb1 Rf2 Nbd2 Rb7 d7 Kc7 Rd1 a1Q Rc1 Rd8 a8B Rb5 Bb7 Ra5 Rd1 Bh1 Rb1 g2 Qc2 g1Q Qce4 Qb2 Ra1 g3 Ra2 g2 B3g4 Rb5 Ra7 Ra5 Qc2 Qb6 Bh3 Rg8 Qee4 Rg7 B3g4 Kd6 d8Q+ Rd7 Qde8 Kc7 Q8e6 Qh2 Bh3 g1Q B3g4 Bhg2 Qed3 Be2+ Nf1 Re7 Qcd2 Ng3 Qde4 Qhh1 Qea2 Bc4 Be6 Nf5 Qdc2 Rd2 Bec8 Red7 Qab3 Ba6 Qbe6 Qd4 Qe3 Be2 Kf2 Qa1 Qd4 Nd6 Kg3 Nf5+ Kg4 Bd3 Qde4 Rf2 N1d2 Qhe1 Nd4 Qeb1 N4f3 Ne3+ Kh4 Bdf1 Kg3 Nf5+
2n2Qqn/1rP1b2K/R6N/1Q3rqp/2b5/NqqQR3/3b4/k1BBNN1Q w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 Kf7 Kd3 h5 Ke4 e5 g4 b3 f4 b2 c4 d6 b6 d3 b7 d2 g6+ Kf6 c5 Ne7 g7 Rg8 c6 Ng6 c7 Nh8 Ra6 Ra7 Be2 Be7 Na3 Nc6 b8Q Be6 Rh3 Rf8 Re3 Bc4 Nf3 Rb7 Qh1 d1Q Ne1 Qd2 Bd1 Na7 g8Q Rf7 Qh7 Qg8 Qe8 Qc3 Qa4 Rf8 Qb5 Bd8 Qhd7 Be7 Qd8 Nc8 g5+ Kf7 g6+ Kf6 g7 b1Q+ Rd3 Qbb2 Re3 Qf2 Qdd7 Qh4 Qd8 Qg5 Qdd7 Kf7 f6 Kg6 f7 Kf6 Qdc6 Ke6 Qcd5+ Kf6 Qd3 Ke6 f5+ Kf6 Ra8 d5+ Kf3 d4 Ke4 Rd8 f8N Rd5 Ng6 Rc5 Qc2 d3 Nf4 d2 Qd3 Rd5 Ne2 Rc5 Ba4 d1Q Ng3 Qdb3 Nf1 Qa2 Bd1 Qab3 Kf3 e4+ Kf2 Ke5 f6 Qd4 f7 Qdc3 f8Q Rd5 Ra6 Rc5 Rh3 e3+ Kf3 e2 Rg3 Qh7 g8N Rd5 Nh6 Qhg8 Nec2 e1B Rh3 Bd2 Ne1 Rc5 Ra4 Ke6 Ke4 Rd5 Re3 Kd6 Qbe8 Kc5 Ra6 Kb4 Qd7 Qbc2 Qde8 Kb3 Qb5+ Ka2 Qb6 Ra5 Qb5 Qh4+ Kf5 Ka1 Qf6 Qb3 Qg7 Nf7 Kg6 Qf4 Qa4 Rf5 Qb5 Qe8 Qg8 Qg5+ Kh7 Nh8 Qf8 Qd8 Qc2 Qd5 Qd3 Qdg8+
1Nr2b2/2bbn3/Bk1NR2q/1P5p/r1b2Q1b/2NnNBbR/KQ2Q3/2Q5 w - - 0 1 illegal: No possible last move
KR1B3k/4b1N1/Q2bB3/2rr3p/2rbqrq1/R1r3B1/1RB1Q1Pn/N5R1 w - - 0 1 legal: proof: e4 c5 h4 b5 a4 g5 axb5 gxh4 d4 cxd4 Qe2 d3 Qg4 Qb6 Qd1 Qd8 f3 d5 Rh2 e5 Rh3 d4 Rh1 Be6 f4 Bd5 exd5 e4 Qd2 Nd7 Qd1 Ne5 fxe5 Qc8 Nh3 Qd7 Ng1 Qd8 Kd2 a5 b4 f5 c4 Kf7 e6+ Kg7 b6 h5 d6 a4 d7 f4 e7 h3 e8B h2 b7 f3 b8R a3 b5 a2 c5 f2 b6 Rh6 c6 Be7 c7 Kh8 c8Q Rc6 b7 Nh6 Na3 Rc3 Ne2 Ra5 Rg1 h1R Bg6 Rh4 Ng3 Rac5 Qe2 Qe8 d8B Ng4 Nc2 Nh2 Nf5 Qa4 Ng7 e3+ Kd1 d2 Qe6 Rd3 Qa6 Rdc3 Bf7 Qc6 Be6 Qe4 Ba3 Rf4 Bb4 R5c4 Bd6 Rf5 Bg3 Rfc5 Ra8 Bd6 Rb1 a1B b8R Bb2 Na1 Ba3 Qg4 Bb4 Bd3 f1R+ Ke2 d1R Ra7 Rf4 Bc2 Rdd3 Rb2 Rd2+ Ke1 d3 Qf3 e2 Kf2 Qc6 Ke3 e1B Qf1 Rd1 Qe2 d2+ Bd3 Rd5 Raa8 Rdc1 Ra7 Rcc5 Raa8 R3c4 Bc2 d1Q Ra7 Bec3 Raa8 Rff5 Ra7 Bd4+ Ke4 Qa8 Bd7 Rb5 Qf2 Be7 Qg6 Qc6 Ra3 Qf6 Bb3 R1c3 Bc2 Rd6 Qe1 Qf7 Bc8 Rd7 Qa6 Qg6 Qd2 Rdc7 Be6 Bbc5 Qe3 Rf4+ Kd5 Qdg4 Qe2 Rd7+ Kc6 Rd5 Kc7 Qe4 Kc6 Ra5 Kb7 Bcd6 Ka8 Rac5
4q3/Nq2Rr1k/8/pP1Qb1RK/2bq1BN1/n4Nb1/2q1N2Q/1BBn1qB1 w - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 h5 d4 c5 e4 f5 Ke2 Kf7 d6 Kg7 b6 c4 b7 c3 d5 c2 d7 f4 g6 h4 b5 h3 e5 g2 e6 g3 Kf3 h2 Kg4 f3 e7 f2 e8Q Rh6 d6 Ne7 Nf3 g1B Qd5 g2 Nc3 Na6 b8B Nb4 Bd3 f1Q Ne2 Bf2 Rg1 h1Q Ba7 Nf5 Qee5+ Qf6 d8N Bg3 d7 Rh7 Nc6 Bd6 d8B Be6 Qf4 Qd4 Bg5 Be5 Be4 Kg8 g7 Bf7 Bh6 Ne3+ Kg5 Nd1 Kg4 Bf2 Qh2 Bfg3 Bhf4 Qe1 Bc5 Qf1 Na7 Qe1 Bb2 c1Q Bb1 Nc2 Bb6 Qcd2 Bc1 Na3 Ra2 Qf1 Rc2 Qfe1 Rc7 Qc2 Re7 Qf1 Qe4 Qd8 Qd5 Qe8 Bc5 Rh6 Bd4 Kh7 g8N Rh5 Nh6 Rf5 Re6 Bg8 Re7+ Rf7 Bc5 Qf2 Kh5 Qd4 Rf1 g1Q Ng4 Qhg2 Rf2 Q2f1 Rg2 Qde4 Bb6 Qgc5 Rg1 Qcc8 Rg2 Qb7 Bg1 Qd4 Ne3 Bf2 Rg5 Bg3 Ng4 Rg7+ Qf7 Qdb6 Rg6 Qd4 Qe6 Bf7 Qd7 Bb3 Qd5 Rf7 Rg5 Bc4
1kBq1Q2/1Nr2R1Q/3Pbp1N/b2q1N1K/bnQ1Br2/1Q6/3R3r/2Nb2b1 w - - 0 1 legal: proof: c4 g5 f4 d5 cxd5 e5 b3 exf4 a4 b5 axb5 g4 Ra2 g3 Ra3 Nc6 Ra1 Nb8 h4 Qg5 h5 Qh4 Bb2 Ba6 Bd4 Nd7 Be3 Ne5 Bf2 Ng6 hxg6 Ke7 Qc1 gxf2+ Kd1 Bg7 g4 Bf8 Kc2 Kd7 Qd1 Qd8 g5 Ke8 Kc1 Bc8 d4 Kd7 Kd2 h5 e4 c5 Ke2 Kc7 Kf3 a5 b4 c4 g7 h4 d6+ Kb7 d5 a4 b6 a3 e5 a2 g6 h3 b5 f6 d7 c3 Kg4 f3 e6 c2 e7 c1B e8B h2 d6 Ra4+ Qd4 Ba3 Nd2 Kb8 b7 Qb6 Bh3 f1Q Nc4 f2 Ne2 Qc7 Ne3 Qd8 Rd1 a1R Nc1 Be7 Qc4 Qd3 Nf5 f1B Rd2 Rh7 Bf7 Ra2 Bd5 Rb2 Be4 Bc5 Rg1 h1B Rg3 Qf8 d8N Bg1 Re3 Qd5 Re1 Nh6+ Kh5 Be6 g8N Ng4+ Nh6 Be2 g7 Bd1 g8Q Nf2+ Bg4 Rf7 Qh7 Nd3 Ree2 Nb4 Rg2 Bb3 Bh3 Qe8 Rg7 Bf3+ Bg4 Rf8+ Rf7 Bfd1 Rd3 Re2 Rd2 Ra3 Bh3 Ba4 Bg4 Rf3 Bh3 Ka7 Bg4 Rf4 Bh3 Kb6 b8Q+ Qb7 Ng8 Bc8 Rd4 Nd3 Ngh6 Bd7 Qbc8 Ka7 Ng3 Qd5+ Bhf5 Rh8 Qb3 Qg8 Qcc4 Nb4 b6+ Ka8 b7+ Ka7 Ne6 Bd8 Rd2 Ba5 Nc5 Qa8 Re7 Rc8 Rf7 Qd4 Be6 Qd5+ Ngf5 Rc6 Qb1 Qd8 Qbb3 Be8 Bc8 Bd7 Qf3 Be6 Qg3 Na2 Qgg7 Rc7 Qf8 Kb6 b8Q+ Kc6 Qbb3 Nb4 Qhh8 Kb6 Qhg8 Ka7 Nb7 Kb8 Qh7 Rh2+
1Q6/b3n1Pq/b1R1p1nB/r2R1nQ1/NqK2N2/kB3q1N/2n2QN1/2n3Q1 w - - 0 1 illegal: No possible last move
kb2nn1r/n3p2B/1r5r/N7/3BqRN1/1Q1QQP2/1B1nRBK1/n2qQ3 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b3 a5 b6 a4 Qe2 a3 Qf3 Bd7 Qd1 Ba4 bxa4 Qc8 Nc3 Qd7 Nb1 Qd8 g4 Kd7 d4 Kc8 b7+ Kd7 d6 Kc6 a5 h5 g5 h3 a6 a2 d5+ Kb6 f3 Ka7 Kf2 c5 g6 c4 g7 h2 d7 c3 d6 h4 Bb2 c2 Bd3 c1N Nh3 e3+ Kg2 e2 Na3 e1Q Nc4 Qe4 Na5 Ne2 Nf2 Nc3 Ng4 Nf6 g8Q Bg7 Qgb3 Nb5 Re1 h1N Re2 Ng3 Qe1 Nf1 Rc1 a1N Rc4 Nd2 Bc2 Qc6 Bh7 Ne8 Rf4 Qe4 Qd3 Be5 Qb3 Qc7 d8Q Qcc2 d7 Qd1 Qe3+ Nd4 Qb3 Nbc6 Qdb6+ Kb8 d8B Ne6 Q6e3 Na7 Bb6 Nf8 B6d4 h3+ Kf2 h2 Kg2 Kc7 b8B+ Kc8 Bc7 h1R Bcb6 Kb8 Qed3 Rh5 Bf2 Rh6 B6d4+ Kc7 Qe3 Rb8 Qbd3 Rbb6 Qb3 Nc8 a7 Bd6 a8Q Na7 Qc6+ Kb8 Qcc4 Ka8 Qcd3 Bb8
Q2qR2N/qn6/QBQq2qn/1r1B2NQ/1K5P/2Bk3p/bbbB1n2/7R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g3 h5 Rh3 a5 Rh2 h3 Qb3 h4 Rh1 h2 Qa4 h3 Qd1 Rh4 gxh4 Ra6 Qc2 Rh6 Qd1 Rh8 b4 Kd7 d4 Kd6 Kd2 c5 Kc3 f5 e4 f3 e5+ Kc7 e6 Kb6 d6 f4 d5 c4 e7 a4 e8Q f2 d7 a3 d6 f3 Ne2 a2 Bg2 f1B Nd2 f2 Nf4 Na6 Ne4 Nh6 Ng5 Nc5 Qdh5 Bd3 Ng6 f1Q Bd5 Qf5 Bd2 Bc2 Rae1 Bg7+ Re5 Rh7 Nh8 Nb7 Qe6 Qg6 Qf6 Qc7 d8Q Be6 Qa8 Qd8 Qa4 Bg8 Re8 Bf7 d7+ Be6 Kd4 c3 Kc4 a1Q Qa8 Qa7 Qff3 Kc7 b6+ Kd6 b5 Ke5 Kb4 Kd4 Qg2 Kd3 Qc8 Qc7 d8B Be5 Bf6 Qd8 Qc6 Rc7 Qf1+ Kd4 Qa1 Kd3 Qa6 Rc8 Qd6 Rc5 Qc6 Bb1 Bg7 c2 Bf6 Bb2 Bfc3 Na5 b7 c1Q b8B Bc2 Bg3 Qd1 Bc7 Nb7 Bb6 Bf7 Bg2 Bc4 Bd5 Ba2 Be1 Qd2 Bc7 Qf4+ Bd4 Bcb3 b6+ Kc2 Bd2 Na5 b7 Qfd6 b8Q Nb7 Rhe1 h1N B4c3 Nf2 Bb6 Ba4 Rh1 B4b3 Qaa4 Kd3 Qa8 Bc2 Qa6+ Rb5+
1n1kr1b1/1qqN1RQ1/6Q1/q5r1/PBbKp3/B3q2B/1N2Qb2/QrB1R3 w - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 h4 Bh6 h5 Ra6 g6 Ra8 g5 Bf8 g7 Nc6 Rh3 Ne5 Rh1 Ng6 hxg6 Ke8 Kf2 e5 Ke3 f5 d4 c5 a4 b5 d6 h5 d5 f4+ Kd3 f3 Ke3 f2 Bh3 f1B Qd3 c4 Nd2 c3 Ngf3 c2 Rg1 h4 Nc4 b3 Nb2 Ne7 g8Q b4 g7 Ra5 g6 Nc6 d7+ Ke7 Rg4 Nb8 Rf4 Rc5 Rf6 Qa5 Rf7+ Kd8 Qd4 e4 Ne5 Ba6 Qd3 Bc4 Kd4 Rb5 Qh7 Be7 e3 Re8 g8Q Bg5 Bd2 c1Q g7 Bf4 Qg6 Bg3 Qf8 Bf2 g8Q Qc2 Re1 Qc7 Bf5 h3 Qe2 h2 Qh8 h1Q Qfg7 Qh5 Bc1 Qg5 Qh1 Qb7 Bh3 Rc5 Nd1 b2 Qg1 b1Q Nb2 b3 Qh1 Qf5 Qhg1 Kc7 d8B+ Kc8 d6 Bd5 Qeh5 Bfc4 Be7 Rb5 Bf8 Kd8 d7 Qg5 Bb4 Be6 Nd1 b2 Qe2 Qa2 Qgf1 b1R Nb2 Qab3 Ba3 Qe7 Qfg1 Qeb4 Qh1 Qa5 Bb4 Kc7 d8B+ Kc8 Nd7 Rg5 Bb6 Bed5 B6c5 Kd8 Rf6 Bg8 Rf7 Bd3 Bf8 Qcc7 Ba3 Ba6 Bfb4 Bc4 Rg1 Ra1 Bcd2 Rc1 Rf1 Rc3 Ra1 Rc2 Qb1 Rc1 Qa2 Rc3 Re1 Rc1 Qa1 Rb1 Bc1 Qxe3+
q1b2R2/2N1Q1q1/2NN4/1P1K1Rn1/qb2Qr1b/3Bp1Br/4N1q1/3QQr1k w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 c4 Nd7 g6 Ndf6 g5 Nd5 cxd5 Bg4 f3 Bxf3 Rh2 Bg4 Rh1 Bc8 Kf2 Kd7 d4 Kd6 b4 c5 g7 e5 g6 h5 b6 a5 b7 e3+ Kf3 c4 Ke4 c3 b8N e2 b5 e1B Bg2 a4 Na3 c2 Rh2 h4 Ne2 f3 Na6 f2 Bf1 h3 Bf4 c1Q Bg3 Qc4 Nc7 Nh6 g8Q Nf7 g7 Qg5 Rh1 h2 Qh7 Qb4 g8Q Qg7 Rg1 h1Q+ Rg2 Be7 Qe8 Bh4 Rc1 Qa5 Rc5 Bb4 Qf5 Qa7 Qf3 Qb7 Qc3 Ra7 Qce1 Qa8 Qc6+ Ke7 d6+ Kf6 d5 Kg5 d7 Kg4 d8N Kh3 d6 Ng5+ Kd5 e4 d7 e3 Nc4 a3 Qb7 a2 Nc6 a1Q d8Q Qa4 Qe7 Rf8 Nd6 Rf4 Ned4 Ra6 Bd3 f1R Ne2 Qh2 Rf2 Qg2+ Rf3 Ra7 Bf2+ Kh2 Bg3+ Kh1 Qe4 Rg4 Rf8 Ra6 Kc4 Rb6 Rcf5 Rf4 Qa7 Rb8 Kd5 Rb7 Na6 Rf7 Qe7 Rf6 Nc7 Rf3 Be5 Rh3 Bg3 Rf7 Re5 Rf3 Ref5 Rf4
5N1q/3rn1k1/1pnnR1q1/3RP3/3N1NB1/3r1br1/N1q3QK/R1r1BQ1R w - - 0 1 legal: proof: c4 a5 g4 f5 h4 g5 b4 d5 cxd5 axb4 f3 e5 f4 Bh6 gxf5 exf4 Nf3 g4 Ng1 Bg5 hxg5 Kf7 Bh3 Ke7 Bf1 Ke8 Kf2 Kf8 Kg2 c5 a4 h5 d4 g3 e4 h4 a5 b6 f6 c4 a6 b3 f7 b2 d6 c3 g6 c2 a7 Be6 e5 Qc7 d5 Kg7 f8N Ne7 d7 Nbc6 d8R Rh7 d6 Bg4 Nc3 b1Q Bd2 c1R Nge2 f3+ Kg1 g2 d7 h3 Nf4 f2+ Kh2 g1R Be2 f1Q Be1 Rg3 Na2 Bf3 Re8 Qd6 d8R Qc2 Rd7 Rc8 a8N Rd8 Nc7 Qf6 Rd2 Rd3 Nb5 Qe6 Nd4 Qg8 Rd8 Qh8 Rd5 Qf2+ Ng2 Qe3 Nf4 Qe4 Rd6 Kh6 g7+ Qg6 g8Q Rg7 Qd5 Rf7 Nb4 Kg7 Rf6 Nc8 Rd6 Rd7 Na2 N8e7 Re6 Bg4 Qg2 Bf3 Kg1 h2+ Kf2 Bd5 Bg4 Be4 Qe2 Bf3 Qef1 Be2 Nb3 Rde3 Rd5 Rd3 Rg1 Bd1+ Qe2 h1N+ Kf1 Qhh6 Nd4 Nf2 Rh1 Ne4 Kg1 Qh8 Qf2 Bf3 Qf1 Qg8 Kh2 Nd6 Bf5 Qh8+ Bh3 Kh6 Bg4 Kg7+
5B1r/1b2nRp1/2Br2b1/1Rq2R2/3Nb1BR/QK6/b2r1bPQ/bB2kN2 w - - 0 1 illegal: No possible last move
R4B2/R1q3R1/q5n1/1Q2b3/qq3Pk1/2Q2nN1/1pR1Br1b/B1NKBqq1 w - - 0 1 legal: proof: g4 a5 b4 axb4 f4 g5 e4 f5 c4 d5 cxd5 fxe4 h3 b5 Na3 Bf5 gxf5 g4 Nb1 g3 Bd3 Ra6 Bc4 Rg6 Bf1 Rg4 hxg4 Qc8 Ke2 Qd7 Ke1 Qd8 a4 Kf7 d4 Kf6 a5 e5 d6 c5 d7 h5 a6 e3 a7 e4 a8R e2 d5 c4 d6 h4 Bb2+ c3 R1a4 g2 R4a6 h3 Na3 h2 Ra5 b3 Ra4 b4 Ba1 b2 Qb3 b1Q+ Qd1 b3 R4a7 b2 Nc4 c2 Na5 c1Q Nb3 Qdc8 d8Q+ Ne7 d7 Qa2 Qe8 Qa4 d8B Qca6 Qh5 Nc6 Ba5 Ne5 Qh3 Rh4 Qc3 Ng6 Bb4 Qc2 Nc1 Bd6 Qdd3 Rh3 Ba5 Rf3 Qb5 Rf2 Bb4 Qd3 Ba5 Qdc4 Bb4 Qc7 g5+ Ke7 f6+ Ke6 f7 Kf5 f8B Kg4 Nf3 g1B Nd4 Be7 Nf5 Bf6 Kd2 Bh8 Ng3 Nf3+ Ke3 e1Q+ Be2 Qf1 Ba5 Ne7 g6 Be5 g7 Ng6 g8R Qcd6 Bd3 Qc7 Qe1 Rd2+ Qf2 Rc2 Rg7 Qh3 Bd2 Qg2 Ke2 e3 Kd1 Qh3 Bc3 Qf1+ Qe1 Rg2+ Qb3 e2+ Kc2 Q4a5 Qb5 Qa2 Qd2 e1Q Bc4 Qe4+ Bd3 Qb4 Bc4 Qf2 Kd1 Q2a4+ Qc2 Qf1+ Be1 Bgd4 Rg1 h1Q Qb3 Re2 Rg2 Bg1 Rf2 Bh2 Qc2 Qaa3 Qc3 Qhg1 Rg2 Re3 Rd2 Q3a4+ Rc2 Re2 Bd3 Rg2 Be2 Rf2
2R1NQK1/k2qNQ2/1np1B3/4R1Q1/P5rB/b1QNbr1r/1N2rb2/1q3b2 w - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 cxd5 hxg4 d4 f5 exf5 c6 b4 axb4 d6 Qd7 d5 Qd8 d7+ Kf7 d6 Na6 Qa4 Rh4 Qd1 Nc7 dxc7 Rh8 Kd2 b5 Kd3 e5 Ke4 Ke7 h4 g5 f4 b3 a4 g3 h5 g4 h6 b2 f6+ Ke6 h7 g2 f7 g3 f5+ Ke7 f6+ Ke6 Qd2 b4 Qg5 Kd6 Kf5 Kc5 Ke6 Kb6 Nf3 g1R Bc4 e4 Nbd2 b1Q Ne1 g2 Nd3 Ba6 c8N+ Kb7 Ne7 e3 Bb2 Qc7 d8N+ Ka7 Nb7 b3 Nd6 e2 Ne8 e1B Be5 b2 Bg3 Qb7 Bh4 Bf2 Bb3 Rf1 Nc4 g1B Rh3 Rb8 Re3 Rd8 Re5 Rd4 Ra3 Re1 Ba2 Re2 Rb3 Qc7 Rb8 Rg4 Rc8 Be3 Bb3 Bgf2 Ba2 Nh6 Bb3 Nf5 Ba2 Nd6 Bb3 Bh6 f8Q Bg7 Qg8 Bf8 f7 Qd7+ Kf6 Qf1 Ba2 b1R Ncb2 Nc4 Q8g6 Nb6 Be6 Ra1 Q6f5 Qb1 Qf3 Bh6 f8Q Ra3 Qf7 Rf8 h8Q Rc3 Qff5 Bc5 Kg6 Ba3 Kh7 Bb5 Qff4 Rb3 Qc1 Bc4 Qc3 Bb5 Qfg7 Rf3 Qf7 Ba6 Kg8 Rh3 Qgg6 Bhe3 Qg5 Qc1 Nb4 Bf4 Qe1 Rd2 Kh7 Rbf3 Qhf8 Bf1 N4d3 Qb1 Kg8 Re2 Qc3 B4e3
q1Q1B3/1QnpK1B1/3QBN2/3nqq2/1nR5/kq3Q2/2nrR2P/1bb3NB w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 b5 e4 f5 exf5 c5 axb5 cxd4 Ba3 a4 Bc1 Ra5 bxa5 Ba6 Qe2 Bb7 Qd1 Bc8 Kd2 e5 Kd3 Ke7 Kc4 Kd6 f4 g5 f6 a3 a6 e4 f5 g3 b6 e3 a7 g2 a8B e2 f7 e1N b7 g4 f6 a2 Nd2 d3 Bb2 g3 Be2 Na6 b8Q+ Nc7 Rc1 a1N Bh5 Bh6 f8Q+ Ne7 f7 Bb7 Qf3 Rg8 Bg7 Be4 Bd5 Qc8 c3 Nec2 Qb7 Qa8 Qfc8 Nb4 f8Q Nac2 Be6 Bf5 Qf6 Ned5 Be8 Be3 Re1 Bh7 Re2 Be4 Nb3 d2 Nc5 d1Q Qd4 Bf5 Qd3 Bc1 Ne4+ Ke7 Nf6 Kd6 Kb3 Kc5 c4 Bh7 Qg6 Qd4 Qh6 Qg4 Qhf4 Qf5 Qd6+ Kd4 c5 Qe5 Nh3 g1Q c6 Qf2 Rf1 g2 Ng1 Qb8 Ka4 Kc4 Rd1 Qfe3 Rd4+ Kc3 Rf4 Kb2 Rc4 Qb3+ Ka5 Ne7+ Kb6 Ned5+ Kc5 Qa8 Qe7 Qf5 Kd6 Ka3 Qf8 Nf4 Ke7 Nfd5+ Kf7 Qe5 Qd6 Bf5 Bh8 Rg4 Bg7 Rd4 Kf8 Rd2 Kf7 Nb5 c7 Be4 Qcb8 Bh7 c8B Nbc7 Kf8 Na1 Kf7 Bb1 Kf8 Nc2 Kf7 Nde3 Ke7 Ned5+ Kf8 Ka4 Qd3 Qg3 Qb5+ Ka3 Nh3 g1Q Bb7 Qh1 Qc8 Qhg2 Ng1 Nb6 Ke7 Q2f2 Bh1 Qf5 Qf3 Qgf4 Qbc6 Q4e5 Q6b7 Nbd5+
6Q1/1k2P3/1n4qn/2nRn3/bK1b2NB/2bBR1q1/qp1N1n1R/R1QQ1Q2 w - - 0 1 illegal: No possible last move
2Qq1b1r/Q2N3b/3r1Nrk/1P3Qb1/1q1bqB2/qB1Np2K/2N3RR/2Q5 w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 axb5 Nh6 f5 Na6 d3 Nc7 d4 cxd4 f6 Nf5 gxf5 g4 Bg2 Ne6 Bf1 Ng5 hxg5 Qb6 Bd2 Qc7 Bc1 Qd8 Kf2 Kf7 Kg2 h5 c4 a5 b4 e5 b6 d5 b5 e3 b7 e2 b8N e1B c5 h4 c6 e4 c7 d3 Ba3 h3+ Kh2 a4 Qc2 d2 Nd7 d1Q Bc4 Ra6 Ra2 Bh4 Bc1 a3 Ne2 Qd2 Bb3 Qb4 Bf4 e3 Qd2 Rd6 g6+ Kg8 g7 Kh7 g8N d4 f7 d3 f6 Bg5 Qc1 d2 Rc2 a2 Na3 a1B Ra2 d1Q Nc2 Bb7 c8Q Be4 Kg3 Qdd4 Rh2 Qd3 Qc7 Bg6 Qa7 Bd4 Rg2 h2 Rb2 Be7 f8Q h1Q f7 Be4 Qe8 Bf8 Ngf6+ Kh6 Qe5 Bh7 Qf5 Qe4 Ra2 Qhe1+ Kh2 g3+ Kh3 Qec3 Rb2 Bg7 f8Q Qcd3 Qg8 Bf8 Qc4 Qdc3 Qc8 Qa3 Ra2 Qcb4 Rh2 g2 Qa1 g1R Nc1 Ra6 Nd3 Rg4 Nce1 Rd6 Qac1 Rg1 Raf2 Rg2 Nc2 Rg4 Bg3 Bh4 Rfg2 Rg6 Bf4+ Bg5
3nkbK1/1q1nrR2/2R3rq/2QNpN2/RB1P2B1/2bp4/1BQ2q2/R5rB w - - 0 1 legal: proof: e4 f5 d4 fxe4 a4 g5 h4 b5 axb5 gxh4 Be3 Bb7 Bc1 c5 c3 Bc6 d5 d6 dxc6 d5 Qf3 d4 Qg4 d3 Qd1 Qd4 cxd4 Bg7 Nh3 Bh6 Ng1 Bf8 Kd2 e5 Ke3 h5 b4 a5 g4 a4 f4 c4 c7 h3 c8R+ Kf7 g5 c3 b6 c2 g6+ Ke7 g7 h2 b7 a3 f5 h4 b5 a2 f6+ Kf7 b6 h3 Nf3 Ra6 Bg2 Rh5 Rf1 h1Q Nc3 h2 Nd5 Bd6 Nh4 Ne7 Nf5 Rh8 g8B+ Kg6 f7 Ba3 f8Q Rh5 Bb2 c1R Be6 Nec6 Qc2 Nd8 Qfc5 Rh7 Rc6 Nd7 b8B Re7 b7 Rb1 Rf2 Rg1 Bd6 Bb4 b8R Rb6 Rb1 a1B Ra8 Ba3 Bf3 Qg2 Re1 h1Q Ra4 Qh7 Rff1 Qgh2 Bh1 Q2h6+ Kf2 e3+ Kf3 e2 Ke4 Q7g7 Nh4+ Kh7 Qa5 Re8 Kf5 Qe7 Bc1 Kg7 Rc7 Bc3 Bb2 Kf8 Ra1 e1Q Bc5 Rd6 Rc6 Nb6 Qa7 Qhd2 Rf4 Qb7 Kf6 Qef2 Rf3 Rf1 Rf5 Nd7+ Kg6+ Nf7 Kh7 Rg1 Rf4 Qc1 Bg4 Re6 Qa5 Ke8 Kg8 Nd8 Rf7 Qh6 Nf5 Bab4 Qa7 Ba3 Bb6 Bab4 Ba5 Bc5 Bb4 Rg6+ Rg7 Rde6 Qb6 Bf8 Qc5 Rgf6 Rh7 Re7 Rf7 Rg6+
r5R1/1nr3NR/b2Q1Q2/NpB5/pB2k2q/3bN1nR/1r1R1P1K/N1q4b w - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 b4 gxh4 a4 c6 axb5 Kf7 b6 Ke8 b7 Qc7 Ra3 Qa5 Ra1 Qd8 c4 Qc7 d4 Qd6 c5 Qh6 b5 Qh5 b6 Bh6 Bb5 cxb5 Qg4 Bf4 Qd1 Bd6 c6 Bc5 dxc5 Qg4 Bh6 Qg3 Bd2 Qc7 Bc1 Qd8 Kf1 Kf7 g4 Kf6 Kg2 Ke5 c7 a5 f6 d5 c6 h5 g5 a4 g6 d4 g7 d3 f7 e6 f8B d2 Bb4 h3+ Kh2 h4 Bca3 Qf8 Qf3 d1R Ne2 Rh7 Nbc3 Na6 b8Q Nh6 g8R Qf6 b7 Nf5 Ra2 Ng3 Nd4 Rb1 Nd1 Rb2 Nb3 Nc5 Na1 Qd8 Qf8 Ke4 Ne3 e5 Qf6 Bf5 c8R Rc7 Rg7 Qd4 Rcg8 Qc4 Kg1 h2+ Kg2 Bg6 Rh7 Bf5 Qbd8 Bc8 b8N Ba6 Qdd6 Nb7 Bc5 Qc1 Bab4 Qc4 Re1 h1B+ Kh2 h3 Rc1 Bf3 Rc3 Be2 Rd3 Qd4 Rd2 Bd3 Ra3 Rd7 c7 Qc4 c8N Rc7 Kg1 h2+ Kg2 h1B+ Kh2 Qd4 Nc6 Qc4 Na5 Qd4 Qb6 Qd8 Qfd6 Qf6 Ne7 Qh8 Rh3 Qh4 N7f5 Qe7 Nf1 Nh5 Rh8 Be2 Rhe3+ Kf4 Qd4+ e4 Rh7 Qh4+ Rh3 Bc4 Re3 Ng3 Qdf6 Be2 Qbe6 Bc4 Ree2 Kf3 Rd8 e3 Rg8 Bd3 Qd6 Ke4 Rc2 e2 N1e3 e1Q Rd2 Qf1 Ng7 Qc1
4k1bQ/1q1Nq1qp/1n2K2n/1r1N2b1/1NQr2BR/NPR5/Q3B2p/4rQ2 w - - 0 1 illegal: No possible last move
NNb1N2R/Pr1b1Q1b/6n1/3Q1N2/6k1/1qnpb1Br/1Rp1RR2/K2B3b w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 b5 g4 e5 d4 exd4 gxh5 Qf6 Qc2 Qb6 Qd3 axb4 Qc2 b3 Qd2 b4 Qd1 Qb5 cxb5 Kd8 Bh6 Ke7 Bc1 Ke8 Kd2 Kf7 h4 Kf6 a4 g5 f4 c5 h6 d5 b6 g4 b7 c4 a5 d3 h7 d4 a6 g3 h5 b2 h6 g2 a7 b3 Be2 Ba3 Rh2 Na6 b8N Bd7 Ra2 Ba4 Nc3 b1B Nd5+ Kf7 f6 Kg6 f7 Kf5 Nc7 b2 Nf3 g1Q f8R+ Kg4 f5 Nc5 f6 Bd7 f7 Qg3 Nh4+ Qf3 Nf5 Ne7 Re8 Na4 f8Q Nc3 Rf2 Ng6 Qf7 Bc5 Qh1 Bc2 Bd1 b1B Rb2 Bca4 Re1 Bc8 Ree2 Bad7 Qg2+ Qg3 Qgd5 Bc2 Nc6 Rb8 Na8 Rb7 Nb8 Re8 h8N Re3 h7 Qf3 Qc6 Qd5 Qb5 Rh3 Qb3 Qf3 Qd5 Bb6 Nf7 Bb1 h8R Bc5 N7d6 Bb6 Ke1 d2+ Kf1 Qe3 Ne8 Be4 Qf7 Bh1 Qb5 Qe6 Qd5 d3 Bc2 d1B Ke1 Bd4 Bf4 Be3 Ba4 Bb3 Bg3 Ba2 Bc2 Qb6 Bd1 Qb3 Bc2 Bd4 Kd2 Bc5 Kc1 Be3+ Rd2 Nb5 Re2 c3 Bd1 c2 Rb1 Qa4 Kb2 Nc3+ Ka1 Qb5 Rb4+ Bc4 Rb2 Qb3 Qde6 Bcd5 Rf2+ Bdf3 Rde2 Be4 Qd5 Nf4 Nfg7 Bh7 Nf5 Ng6
B1R3Q1/2n1Qbb1/1K2N3/Q1b1Np2/qR3Qn1/P2B1R1b/R1p2rkr/2q5 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e5 fxe5 h5 g4 a4 gxh5 a3 d3 axb2 Na3 bxc1Q Rb1 Qf4 Rb2 Qd4 Rc2 Qa1 Kf2 Kd7 Ke3 f5 h4 g5 d4 b5 e6+ Kd6 e7 c5 e8Q b4 h6 c4 h7 g4 h5 c3 h6 g3 Rh3 b3 Qd2 g2 Rf3 b2 Nh3 b1B Nf4 Nf6 Nc4+ Kc7 a3 Qe7+ Ne5 Kd6 Ra2 c2 Ne6 Rg8 h8Q Qg7 h7 g1B+ Kd3 Qg5 Kc4 Qh6 Kb5 Qe3 Kb6 Qf2 e4 Bg7 Bd3 Na6 Qf4 Nc7 Qa4 Bb7 Qa5 Rgd8 Qg8 Bh2 h8R Ng4 Rhh3 Qh4 Rhg3 Ke7 d6+ Kf6 d7 Re8 d8Q+ Re7 Rb2 Ba2 d5 Qc1 d6 Bc4 d7 Ra7 Ng5 Bf7 Ra2 Ra8 Qde8 Rb8 d8R Rd7 Bc4 Rd2 Ne6 Rf2 Rc8 Ra8 Rh3 Ba6 Bd5 Bf1 Qd7 Ra7 Ba8 Bg3 Rh1 Bh3 Rd1 Bh2 Rd4 Bg3 Rb4 Bh2 Nc6 Kg6 e5 Kh5 Qe7 Bg3 Nf8 Bh2 e6 Bg3 Qe4 Bd6 Ne5 Ra6+ Kb7 Rc6 Qf4 Rc4 Ka7 Re4 Kb6 Ree2 Qd7 Rh2 e7 Ref2 e8B Qg5 Re3 Kh4 Rf3 Qh5 Ne6 Qh6 Qe3 Qf4 Qda4 Qe4 Bb5 Qc4 Qe4 Qb3 Bd3 Qc4 Rf4 Kg3 Rf3+ Kg2 Qd7 Qb3 Qe7 Qa4 Qf4 Bc5+
R2q3B/3QRn1Q/N7/pb1N1N1K/1n2q1p1/r2B4/kBbNrPq1/4q1B1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 h4 fxe4 g3 e6 h5 Bd6 h6 Bf4 gxf4 Qh4 Na3 Qxh6 Nb1 Qh2 Ke2 Kf7 b4 g5 d4 h5 d6 c5 b6 e3 Kf3 h4 Kg4 c4 b7 e2 d5 e1Q f5 a6 f6 c3 b5 e5+ d7 h3 d6 Ke6 d8Q c2 b6 e4 d7 e3 f7 e2 f8B Ke5 Nc3 Nc6 b8N Nh6+ Kh5 g4 b7 Qg2 Bb2 c1Q Qd3 h2 Qh7 Kd4 Nd5+ Kc4 Bfg7 Kb3 Nf3 Re8 Bh8 Nb4 Qde7 Qb1 d8N Qd2 Qd7 e1Q Bd3 Re2 Ne6 Nf7 Ng7 Qbc2 Rf1 h1B Nf5 Qc6 Ra5 Qa4 Rg1 Ka2 Rf1 Qdd1 Nd2 Ra7 Nc6 Ra8 b8B Bb7 Bf4 Ra7 Nb8 Bc6 Bh2 Bb5 Ba3 Qac2 Bg1 Qc4 Ra4 Qce4 Ra5 Rc7 Ra4 Rc3 Bb2+ Ra3 Ra5 Qc1 Ra4 Qc8 Ra5 Qd8 Ra4 Qa1 Rc1 Qb1 Rc7 Qe1 Ra7 a5 Na6 Nc2 Rc4 Nb4 Rc8 Qg3 Rca8 Bg2 Bhe5 Bf1 Bh8 Qgg2 Qe6 Ba4 Re7 Bc2 Qd7 Re3 Bb5 Bfd3 Nac7 Re2 Na6 Bb3 Bc4 Bc2 Bb5 Ba4 Bd3 Bb5
2QNBQ1Q/4Qb1B/1q2R3/qr2PR2/k2r4/1qbpn3/N2r1pN1/1N1b1K2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 h6 Nh3 Nc6 Ke1 Nce7 Bg5 f4 Ng1 Nf5 gxf5 hxg5 h4 a5 b4 d5 c4 Kd7 e4 a4 h5 f3 c5 a3 b6 Kc6 f6 g4 f7 g5 b7 d3 b8N+ Kb5 c6 g3 e6 g2 e7 d4 e8B a2 h6 g4 e5 g3 h7 Qd5 Ne2 g1R Nf4 g2 Rh6 Be6 Na6 Rd8 c7+ Rd7 c8Q Ne7 Rh5 Qb3 Rf5 Ka4 b5 Nd5 b6 Ne3 b7 d2+ Kf2 Be7 f8Q Bb4 b8N Bc3 Nc6 Bf7 Nab4 Rg8 h8Q Rg4 Qc1 d1B Bd3 Rb7 Qd7 Rb5 Nd8 Rh4 Be4 d3 Qde7 Re1 Qc2 Re2+ Kg1 Rd2 Qc1 Bb2 Qc8 Bd4 Rf6 Bb2 Bh7 Bc3 Re6 Rg4 Na3 Rh4 Rb1 a1Q Na2 Rg4 Rc1 Rh4 Nb1 Rg4 Ng6 Rd4 Nh4 Be2 Rf1 Bd1 Kh2 g1Q+ Kh3 Qg6 Ng2 Qe4 Kh2 Qb7 Kg1 Qb6 Re1 Nc4 Kf1 f2 Re4 Re2 Rf4 Rd2 Nb4 Qaa3 Na2 Qab4 Rff6 Q4a5 Rf5 Ne3+
1r1R1R1N/1brrBB2/k2n1P2/2R4q/3BprN1/1Qr5/1QB2p2/1Rq3Kb w - - 0 1 illegal: No possible last move
nb3kq1/N2rN1q1/1Nb1p3/R1Bn3R/q1R2qN1/q1P1p1B1/3K1QR1/5Q2 w - - 0 1 illegal: No possible last move, all moves rejected
bBK5/r1P1nQNk/1rB1b1q1/1p1NR3/4q1R1/1Br1rp2/1R1BQ3/2R4q w - - 0 1 illegal: No possible last move
8/kBbq1Rn1/1r1Q1r2/N4BQ1/RRNB4/1p2rrrP/p2b2R1/B1r3K1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 d5 cxd5 e5 Ra2 exf4 Ra3 Qg5 Ra1 Qd8 Qc2 a5 Qb3 Ba6 Qd1 Nd7 Qb3 Nb6 Qd1 b4 b3 Bb5 axb5 a4 Qc2 a3 Qd1 Na4 bxa4 Ra6 Nf3 Ra7 Ng1 Ra8 Kf2 Kd7 e4 Kc8 d4 Kb8 d6 c5 a5 f5 d7 g5 d5 c4 d6 c3 a6 b3 b6 f3 a7+ Kb7 h3 c2 e5 f4 e6 Rb8 e7 Rh6 e8R Ne7 Bb2 c1B Nd2 Re6 Ne2 Nf5 Rg1 Ng7 a8B+ Ka6 b7 a2 Nd4+ Ka7 Bd3 g3+ Kf1 Qc7 d8Q f2 d7 g4 Qg5 Re3 d8B Bd6 Re4 Qd7 Bf6 Bc7 Kg2 f1R Nc6+ Kb6 Ra4 f3+ Kh1 f2 Na5 Ka7 Bbe5 g2+ Kh2 Rfe1 Ndc4 f1R Bb1 Rc3 Qd6 Bd2 Bc2 Rf2 Rb1 Re4 Rbf1 Rf5 Rf4 Rf3 Ba1 Ree3 Bfe5 Rff8 Rf6 Rf7 Bf5 Rff8 Rf1 g1R Rf2 Rc1 Bed4+ Bb6 Kg2 g3 Re2 Rc2 Kh1 g2+ Kh2 g1R Rf2 Rh8 Rf7 Rgg3 Rg2 Rh6 Kh1 Rf6 Kg1 Rc8 b8R Rc6 Bdb2 Bd8 Rbb4 Rb6 Bd4 Bc7 Bb7 Rc1+
Brk1r1N1/3R3N/R3B3/3rB2n/3NP2p/2pQb1Qr/1b3b1r/1KnB2N1 w - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 b4 axb4 Na3 e5 Nb1 d5 fxe5 dxc4 h3 f4 Qc2 Bf5 gxf5 g4 Qd1 g3 Qb3 Qh4 Qd1 Qg4 hxg4 Bc5 Bb2 Be7 Bc1 Bf8 d4 Kd8 Kd2 b5 Kc2 c5 a4 h5 e4 f3 d5 f2 g5 c3 d6 g2 g6 c4 d7 Bg7 e6 Nc6 a5 Ne5 f6 Nd3 f7 Nf6 Bf4 Nc1 Nd2 b3+ Kb1 b2 f8N b4 Be2 f1R a6 Rf3 a7 Rh3 Nh7 h4 Nb3 Nh5 Nd4 Rb8 a8B Re8 Qc2 Bh6 Bh2 Be3 g7 Rb5 g8N Rd5 Bd1 Bf2 Ngf3 g1B Ra6 Be3 Qg2 Bgf2 Be5 Rh2 Kc2 b1R Qg3 Rb3 Ng1 Ra3 Kb1 b3 Ngf3 b2 Rf1 Rb3 Ng1 Be1 Rf6 B1f2 Rd6 Kc7 e7 Kb8 Kc2 b1R d8Q+ Ka7 Qd7+ Kb8 Qdh3 Kc7 Rd7+ Kc8 Ra6 Ra3 Qf1 Rb8 Qd3 Rab3 Nb5 Ra3 Kb1 c2+ Kb2 Nb3 Nd4 c1B+ Kc2 Bb2 Kb1 Rd8 e8B Nc1 Bf7 Re8 Qf1 Rd3 Be6 c3 Qe2 Bf4 Qf1 Rf3 Qd3 B4e3 Qg5 Rfh3 Qg7 Rh1 Qg3 R1h2
2RNQ3/2rQ1Bb1/3Kbb2/2pP4/QR3Qb1/NpN3rn/5b2/n1NBkr2 w - - 0 1 legal: proof: g4 f5 f4 d5 b4 a5 c4 axb4 cxd5 h6 e4 Ra3 g5 Qd6 g6 Rh3 Bb2 Qa6 Bf6 Qe6 Bg5 Qf7 gxf7+ Kd8 exf5 hxg5 f6 Ra3 f5 Kd7 Nc3 Ra5 Nb1 Ra8 Kf2 Kd6 Kg3 Ke5 d4+ Ke4 a4 Ke3 h4 e5 a5 c5 d6 b5 d7 b3 d8N e4 h5 g4 a6 g5 d5 b4 h6 b2 a7 Nc6 h7 Bg7 f8N Na5 f7 Nb3 f6 Nh6 Nc3 b1B Nfe6 Rg8 f8Q Nf7 Ra4 Na1 Nd4 Be6 h8Q Rc8 a8B Rc7 Be2 b3 Qh7 Bd3 Rb4 Bb5 Qe7 Bbd7 Ndb5 Bc8 Qf1 Kd2 Qd7 e3 Bd1 e2 Na3 e1R Qa4 Bcd7 Qfb5 Rf1 Nge2 Ke1 Bc6 Bc8 Be8 Bcd7 Kg2 g3 Nc1 g4 Rh3 Ng5 f7 Bf6 f8Q Rg7 Rh1 Nh3 Bf7 Bc8 Qbe8 Bd7 Rg1 Rg8 Kh1 g2+ Kh2 Rg6 Rh1 g1B+ Kg3 Bgd4 Qd6 Rg8 Qf4 Bg7 Rh2 Bdf6 Qhf5 Ng1 Rh8 Nh3 Kg2 g3 Q5g4 Rh1 Kf3 g2 Ke4 g1B Qgf5 Bf2 Qh7 Bg4 Qhf5 Bc8 Qfd7 Be2 Kf5 Rf1 Ke6 Bg4+ Kd6+ Be6 Rb8 Ba6 Rh4 Be2 Rc8 B2g4 Qh6 Bf3 Rb4 Bg4 Qf4 Bh6 Bc2 Bf5 Ra8 Rg3 Bd1 Bhg7 Rc8 Bg4
1b2n1QB/1b4B1/5p1p/1PR2N1b/Kn1b2Q1/B7/3rN1RN/Br1Nkrn1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Ba3 g6 Qg5 hxg5 Bf8 Bg2 Ke8 Bf3 exf3 b4 Ke7 d4 Kd6 Kd2 c5 Kc3 a5 Kb3 f2 e4 f1R e5+ Kd7 b6 f3 b5 c4+ Ka4 c3 e6+ Kd6 b7 h6 e7 f2 e8N+ Ke7 d6+ Ke6 d5+ Ke5 d7 Ke4 d8B c2 g7 Nd7 b8B Ndf6 g6 Rh7 d6 Ne7 g8Q Bb7 g7 Ned5 d7 Bd6 Rh5 Nb4 Ba3 Ke3 Rc5 c1N Ra2 Ne2 Nc3 Bg3 Nd6 Ne8 Bf6 Bf4 Nf3 Ng1 Nde4 Bh2 Ba7 Bb8 d8B Rh8 Qd7 Rb1 Ng3 f1B Rc2 Be2 Nh2 Kf2 Qg4 Ke1 Nd1 Bef3 Ne2 Rh7 Qg5 Bh5 Ba1 Rh8 Bab6 Ra6 Ba7 Rf6 Qg4 Rf1 Bdf6 Rh7 Qf8 Rh8 g8N Rh7 Bh8 f6 Ne7 Rf7 Nf5 Rd7 Qfg7 Rd2 Qg8 Nd5 Rc8 Bf7 Bf8 Nec7 Ka3 a4 Bac5 Rd4 Nc1 Ne8 Bfg7 Bh5 Rg2 Rd2 Bcd4 Nb4 Ne2 Nd5 Rc5 Nb4 Bab2 Nc6 Ka2 a3 Kb3 a2 Ka4 a1B Ba3 Nb4 Bc3 Bb2 Bd4 Bc1 Ba1 Bb2 Nc1 B2e5 Ne2 Bd4
1K3k1q/1nBnnp1Q/b1BnR3/7R/1N1pRr2/2b3Pb/6B1/1RQN1b1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 gxh5 g5 Kf2 a5 Ra3 g4 Ra1 g3+ Ke1 g2 Ra4 Ra6 Ra2 Rg6 Ra1 Rg3 hxg3 Qg5 Qd2 Qe7 Qd1 Qd8 Kd2 d5 Kd3 a4 b4 a3 c4 a2 e4 f3 e5 f2 b6 Bg4 h6 Qe7 c5 Qe6 c6 Bc5 h7 Qe7 b5 Qd7 c7 Ke7 c8B Na6 e6 Ba3 b7 Qe8 b8R Bb4 b6 Bc3 b7 Qa4 Bf4 Kf8 e7+ Kg7 e8B Qa3 Rh5 Qf8 Bc6 Qd8 Bc7 Ne7 Nf3 g1N Bg2 Ne2 Ne5 f1B Qc1 Kf8 Be6 Rg8 h8Q Bh3 Qh7 Rg4 Rc8 Rf4 b8R Qe8 Rb4 Nb8 Bg4 Qd8 B4f3 Nd7 Bh1 Qe8 Bfg2 Qd8 Ra8 Qe8 Ra6 Qc8 Kc2 d3+ Kb3 d2 Ka4 d1B+ Ka5 Nd4 Nd3 Nb5 Rb6 Qd8 Ka6 Nd6 Ka7 Bde2 Re4 d4 Nb4 Bb5 Rhe5 Ba6 Rh5 Bd2 Nc3 Qc8 Rb1 a1N Re6 Nb3 Nd1 Na5 Rbb5 Qd8 Rbe5 Bc3 Re4 Nab7 Qe3 Ng6 Qc1 Qf6 Ka8 Qh8 Ka7 Ne7 Ka8 Ndc5 Kb8 Nd7+
Brqb1B2/Q7/1p2B3/1q1qNR2/N5Q1/r2P1NB1/k2Kq1pq/1rnRN3 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Bh3 g5 Bg2 f5 Bf1 f4 h3 Bf5 gxf5 Nc6 h4 g4 Qc2 Ne5 Qb3 Nf7 Qd1 Ng5 hxg5 Bg7 Nc3 Bh6 Nb1 Bf8 a4 Kd7 e4 Kd6 e5+ Kc5 e6 h5 e7 g3 e8Q h4 d6 b6 a5 h3 f6 h2 a6 g2 f7 b3 g6 Kb4 g7 c5 d7 b2 a7 c4 Na3 b1R Nc2+ Kb3 Qe7 c3 Ra5 Nf6 g8N Nd5 Nh6 Nb4 Ng4 Na2 Ne5 f2+ Ke2 Rg8 Ne1+ c2 Ngf3 Rb8 a8B Rg3 Rg1 h1Q Rd5 Qc8 d8N Qh2 Qa7 Be7 Ne6 Bd8 f8B Qd7 Ra5 Qd5 Bca3 Rh3 Bad6 Kb2 Nc5 c1Q Rh1 Ka1 Na4 Qc8 Ng5 Rd3 Ngf3 Ra3 d3 Nc1+ Kd2 Ka2 Be2 f1Q Ng1 Qh6 Nf7 Qcc5 Bg4 Qb3 Nc2 Qh2 Be6 f3 Bg3 f2 Qg4 Qc8 Rd5 Qb5 Rf5+ Rab3 Ne5 Qd1+ Ke3 Qf3+ Kd2 Qfd5 Ngf3 Ra3 Rd1 f1Q Nce1 Qe2#
3b1Nbb/1B1RR3/1q1b1k2/3KNq1q/1N1p2r1/1PQbN1r1/1B3Q1p/1B1B4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Bd2 g5 Be3 f4 Bc1 Ne7 h3 Nf5 gxf5 Nc6 h4 g4 Qd3 Ne5 Qd2 Nf7 Qd1 Ng5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Ke7 c4 d5 e4 h5 c5 a5 e5 d3 b6 a4 g6 d4 b3 h4 c6 d2 g7 h3 g8Q a3 c7 h2 f6+ Ke8 f7+ Ke7 b7 a2 b8N Bg7 f8N Bf5 c8B Bh7 e6 Kf6 e7 Qb6 Qe1 d1Q Qc4 Rg8 e8B Bh8 Na6 Rg7 Be2 g3+ Kf1 g2+ Kf2 Rg3 Na3 Ra7 Bg6 Rg7 Bb2 Rg4 Rc1 a1B Bb1 Rg3 Nc2 R7g4 Ba3 Bc3 Ne3 Bd2 Bb2 Bb4 Qcc3 Bd6 Nb4 Bc7 Bb7 Bd8 Nh3 g1B+ Kf1 f2 Ng5 Qc2 Nf7 Qf5 Bd1 Qh5 Ke2 f1Q+ Kd2 f3 Ne5 f2 Qe2 Bg8 Kd3 Bh7+ Kc4 Qfh3 Qec2 f1B+ Kd5 Bfd3 Qg2 Bf2 Re1 Qf5 Qf1 Qhh5 Rc2 Rf3 Rce2 Bg3 Qf2 Bf4 Rg1 Rg8 Rg7 Rg3 Rd7 R8g4 Re1 Bh6 Ne6 Bf8 Re2 Bc5 Nf8 Bd6 Nf1 Qh3 Re3 Qf4 Nf3 Qh4 Ree7 Qh5+ Ne5 Qff5 Ne3 Bg8+
1B2nb2/nnN4B/2P3R1/Qn5n/NpR1nkbR/5rp1/5B2/Qn1R1K1B w - - 0 1 legal: proof: d4 f5 b4 c5 e4 cxd4 exf5 a5 g4 axb4 f4 Kf7 f6 Ke6 f5+ Kd6 f7 Kc6 h4 Kc7 Rh3 b5 Rh2 Ra6 Rh1 Rf6 g5 Qe8 Nc3 Kd8 Nb1 g6 gxf6 g5 Nf3 g4 Ng1 g3 Qe2 Bh6 Qd2 Qf8 Qe2 Qg7 Qd1 Qg5 hxg5 Bf8 a4 Kc7 c4 Kd6 c5+ Ke5 g6 h5 a5 d5 g7 d3 a6 d2+ Ke2 h4 c6 h3 a7 b3 a8B b2 Qa4 d1N Bb7 h2 Nh3 b4 Ba6 d4 Ng5 Nd7 Bd3 Nc5 Nc3 b1N Be3 Nb7 Bf2 Kf4 Qa5 e5 Bg2 e4 Kf1 e3 Na4 Ndc3 Bd5 Nb5 Ne6+ Ke5 Bc2 d3 Nc7 d2 Bf3 d1N Bfe4 Bd6 f8R Kf4 f7 Na7 f6 Ndc3 Bg2 Rh6 Bh7 Bg4 Rd8 Rh4 f8B Ncb5 f7 Nf6 g8R Ne8 Rg6 Bc5 Bg7 Bf8 Rd1 Rh5 Ra2 Rf5 Rc2 Rf6 Be4 Rf5 Rc4 e2+ Kg2 e1N+ Kf1 Ng2 Bc3 Bd6 f8Q Rf6 Qg7 Bf8 Rg1 h1N Bf3+ Kf5 Be5 Nf4 Rg2 Rf7 Rh2 Nh5 Rh4 Rf6 Bf4 Rf7 Qa1 Rf6 B2e3 Nf2 Bh1 Ne4 Bf2 Rf7 Nd5 Rf6 Bb8 Rf7 Nc7 Kf4 Rd3 Rd7 Rd2 Rd3 Rd1 Rf3
b1b3B1/Nr1qN2N/5Rp1/RP1RpRr1/2KQ3b/NQ1rB3/3b3k/1r3q2 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Na6 f6 Ng8 h3 Qc7 f7+ Kd8 Qe2 Nc5 Qf3 Ne6 Qd1 Nh6 h4 g6 h5 Nf5 gxf5 Ng7 h6 Qa5+ Qd2 Kc7 hxg7 Qb6 Qd3 Kd6 Qd1 Qd8 Kd2 Ke5 g8Q Kf4 b4 Kg3 c4 h5 c5 d5 b6 a5 c6 e5 b5 a4 f6 h4 b7 d3 Kc3 d2 b8N h3 c7 a3 Nc6 d4+ Kb3 a2 Ne7 d3 Qh5 d1R Kc4 d2 Na3 e3 Nf3 e2 Ng5 e1B Nh7 Bh6 f8R h2 f7 Qd7 Bh3 Bf2 Be6 Ra7 Qh4+ Kg2 Qf4 Bh4 Qd4 Rb7 Rd8 Kg3 Rf1 h1B f8R Kh2 R8f6 Re1 R1f4 d1R Be3 Rd3 R4f5 Rb1 Bf7 Qe6+ Rd5 Qd7 Qg7 Bf4 Bg8 Bfg5 Qf7 Bf4 Nf8 Rh5 Nh7 Rg5 Rdd6 Bc6 Rd5 Bfg3 Qe6 Be1 Qf7 Bd2 Qe6 Ra7 Qf7 Ba8 Qe6 Ba6 c8N Rb7 Qf7 Rb6 Na7 Bc8 Qe6 Rb7 Qa6 Rb2 Qa4 Rb1 Qb3 Rb2 Raf1 a1Q Ra6 Qe1 Ra5 Rb1 Rf6 Qd1 R1f5 Qf1
2bq1k2/2rR4/2B1R2q/5p2/NPb1K2N/Bn2N1B1/prQ2p1N/nr3BQ1 w - - 0 1 legal: proof: d4 h5 f4 b5 g4 hxg4 e4 a5 f5 b4 c3 b3 axb3 Ra7 d5 Ra6 f6 exf6 e5 Re6 dxe6 Bb4 cxb4 Rh4 Qd6 Rh7 Qd1 Rh8 Ke2 d5 Kd3 g5 h4 c5 h5 a4 e7 c4+ Kd4 g3 h6 a3 b5 g2 b4 c3 h7 c2 b6 a2 b5 g4 b4 g3 b7 Nh6 b6 Na6 b8Q Nc5 b7 Ng4 Rh6 Ne3 Ba3 c1R Nf3 g1R Qc2 g2 Nh2 Nb3+ Kd3 f5 Nc3 f4 Qa7 f3 b8B f2 Re6 d4 Na4 f6 Ke4 d3 Qd4 Rf8 h8N d2 Ng6 d1B Nh4 Be2 Qdd1 Bc4 Rb1 Kf7 e8N Rh1 Qe1 g1Q Ng7 Qg6+ Ngf5 Qh6 Qed1 Re8 Bc7 Ng4 Ne3 Kf8 Ra1 Rb1 Qe1 Rb2 Rd1 Re7 Bb8 Rc7 Rd7 Qg5 Qed1 Nh6 Qg4 Nf5 Qg1 Nfd4 Rb6 Na1 e6 Rc6 Bg3 Ndb3 Ra6 Qh6 e7+ Kg8 e8B Rc7 Re6 Kf8 Rd5 Be2 Bc6 Bc4 Qg2 Rg1 Rd7 Rh1 Bd3 Rc1 Bf1 Rcb1 Qg1 f5+
N2B2QN/1k3N2/b1nn2RK/1B1p3Q/1b1R2rP/4Bp2/BN1p3q/1rq3q1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kf2 f5 Kf3 g5 h4 d5 c4 Kd7 e4 Kc7 b6+ Kb7 h6 d3 e5 Ra6 h7 Ka8 b7+ Ka7 c5 Qd6 c6 Qg6 c7 Rc6 a6 Bc5 e6 Nf6 e7 Be6 c8Q Bd4 e8B Rc5 Be3 d2 Ra4 Rc4 Na3 Nc6 Nh3 Ne4 Rg1 Nd6 b8B+ Ka8 a7 Bc3 Bd7 Bb4 Qg8 Kb7 a8N Rc1 Qe2 Rb1 Bc7 Qh6 Be8 Bc8 Nc4 Qe6 Nb2 Qe5 Bd8 g4+ Kg2 g3 Kf3 g2 Ng5 Re1 Nf7 Rb1 Qg4 Rg8 h8N Rg5 Qd1 Rg8 Bc4 Rg6 Ba2 Rg5 Re1 g1Q Re2 Rg7 Rg2 Rg8 Qh5 Rg7 Qe1 Rg4 Qg3 Qc1 Ra3 Qg1 Rd3 Qc1 Rd4 Qg1 Ke2 f3+ Kd3 f4 Bd7 Ne7 Bb5 f2 Ke2 Nc6 Kf3 Rg7 Qgg6 Qc1 Qgh7 Rg4 Qg8 f1Q+ Rf2 Qg1 Rg2 Kb8 Rg3 Ba6 Rg2 Kb7 Rg3 Rg7 Rg6 Qh2 Kg4 f3 Qg5 Qf5+ Kh5 Qg4+ Kh6 Qgg3 Qh5 Qgg1 Re6 Rg2 Rg6 Rg4
2nKn3/N1Bq1Qr1/2p1r3/B1Q1R3/Q2n1b2/1b1pPNQ1/Bk4pR/q3B3 w - - 0 1 illegal: No possible last move, all moves rejected
B2Q2R1/5b2/1nQr2b1/qP5p/2RpRN1p/n3qRbQ/B7/QN2k1nK w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 Bb7 h5 Ba6 Bf4 Bc8 g4 a5 h6 Qb6 Bg3 Ra6 Bh4 gxh4 g5 Qd8 g6 Rf6 Bc4 Rf7 Bf1 Rg7 hxg7 Bb7 Be2 Ba6 Bf1 Bc8 b6 e5 f6 h5 b4 d5 c4 Kd7 f4 Ke6 Kf2 Kf5 Kg2 Ke4 f5 Ke3 f7 d3 Ra4 e4 f6 d4 b5 d2 b7 Bf5 c5 Bd6 f8Q Ne7 g8B Nd7 b8Q Ne5 c6 Nc8 c7 Nf3 f7 Rh6 g7 Qe8 Rh3 Nb6 Kh1 Kf2 c8Q e3 Na3 e2 Bg2 e1N Ne2 Nc2 Qa8 Ng1 Re3 Bg3 Re5 Bh7 Qh3 Rd6 Re6 Qe7 Qfd8 Bg6 Bc6 Qg5 Re4 Qe3 Qc1 d1B f8R+ Ke1 Rf3 Qh6 Rb4 a4 Nb1 a3 Qb2 Qe3 Nf4 a2 Bc4 a1Q g8R Qa4 Qa1 Qa3 Ba2 Qa5 Qac8 Be2 Ba8 Na3 Qc6 Bc4 Ra4 Be6 Rc4 Bef7
B1Bq4/n4rN1/bN1P4/N2RR1n1/1Q1qRq2/1p1rp2Q/rk1Np2R/3K4 w - - 0 1 illegal: No possible last move, all moves rejected
k3N1Rq/4Qq1p/1Q1pP3/nB1r3q/1Q1Q4/1r3RpR/bNK2b1b/2B4R w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 g5 Nb1 f5 gxf5 Nc6 h3 Ne5 h4 g4 Nc3 Nf7 Nb1 Ng5 hxg5 Qe7 Ra2 Qf6 Ra1 Qd8 Kd2 a5 e4 d6 b4 Kd7 c4 Kc7 f6 Kb8 f7 f3 c5 g3 e5 f2 g6 a4 e6 a3 c6 a2 g7 d3 b6 Nh6 g8R Be7 f8Q Bd7 b7 Ka7 c7 Bf6 c8R Nf7 b5 Ne5 Na3 Bc6 Qe7 Bd5 Nh3 Nc6 Ng5 Bd4 Nc4 Na5 Nb2 Bc5 Rb1 a1B Rh3 Ba2 Ne4 Rb8 Be2 f1Q Nf6 Bg1 Ne8 Qf7 Rc3 Bh2 Qa4 Rc8 Qd4+ Rc5 Kd1 d2 Kc2 Kb8 Bf1 Rd5 Rf3 d1Q+ Kc3 Qe1+ Kc2 Qe5 Bd3 Bc4 Be2 Qc8 Bd3 Qc5 Be2 Ka7 b6+ Ka6 b8Q Qff4 b7 Qef6 Rg5 Qf8 Qdf6 Qh6 Nd3 Rd4 Bb2 Qh5 Ng7 Rd5 Rh1 Qcd4 Bc1 Ba2 Bf1 Rd8 Ne8 Rc8+ Qbc7 Ka7 Rg8 Rb8 Qcd8 Bc3 Nb2 Be1 Qdc7 Bf2 Qc3 Rc8 Bb5 Rcc5 Qh4 Qff7 Qc4 Qh8 Qd4 Re5 Qcc3 Re3 Qb4 Rd5 Qg7 Rb3 Qgg4 Kb6 b8Q+ Nb7 Qbd8+ Ka7 Qb6+ Ka8 Qgd4 Na5
B2k1N2/1Qn1qQpQ/bPQBrq1R/K3R3/bp6/n1B4B/5np1/3Nq3 w - - 0 1 legal: proof: b4 b5 g4 a5 a4 f5 d4 h5 d5 c5 dxc6 hxg4 e3 e6 e4 Bc5 bxc5 b4 Bg5 Ra7 Bh6 Rb7 Bc1 Rb5 axb5 fxe4 b6 Kf7 Na3 Kf8 Nb1 Ke8 Kd2 d5 f4 e5 h4 g3 c4 a4 f5 a3 f6 a2 f7+ Ke7 f8B+ Ke8 c7 d4 c6 d3 h5 Ba6 c8B Qf6 c5 Bb7 c7 Qc6 h6 Qg6 c6 Rh7 Nh3 Rh8 h7 Ba8 Nc3 Nh6 Qf3 Bb7 Nd1 Ba6 Bb7 Qg5+ Nf4 Qf6 Bh3 g2 Ba8 Ng4 Ne6 Nf2 Bb2 e3+ Kc1 e4 Bc3 d2+ Kb2 e2 Kb3 e1N Ka4 e3 Ka5 e2 Bd6 Qe7 Nf8 Nc2 Rh2 Rg8 h8Q e1Q Qh7 Na3 Rc1 a1Q c8Q+ Qd8 Qcf5 Qde7 c7 Rh8 Qb7 Qb2 Qg8 Rh6 Qgh7 Re6 c8Q+ Qd8 Qcc5 Qe7 Qf7+ Kd8 Qcc6 Qa1 Nb2 d1B Rh1 Ba4 Nd1 Qb2 Rc2 Qa1 Re2 Qb2 Bd2 Qbf6 Bc3 B6b5 Re5 Na6 Bf5 Bf1 Rh6 Nc7 Bh3 Ba6
KNb2R2/2p1BqQ1/QP1NR1N1/nq4Q1/k1p1Q2b/2q1N2B/b1r1p2r/8 w - - 0 1 legal: proof: f4 b5 e4 f5 g4 d5 c4 dxc4 a4 g5 axb5 Bh6 exf5 Qd6 h4 Nc6 h5 Qd5 Bh3 Qd8 Bf1 gxf4 g5 Ne5 Rh3 Bf8 Rh1 Ng6 hxg6 Qd5 Qf3 Qd3 Qd1 Qd8 Kf2 Kd7 Kf3 a5 Ke4 h5 Kd5 e5 d4 f3 b4 f2 b6 e4 f6 h4 g7 a4 b5 a3 f7 h3 g6 h2 b7 a2 b8N+ Ke7+ Kc6 e3 d5 e2 b6 Nf6 g8Q Be6 Kb7 Kd6 g7 Kc5 d6 Kb5 d7 Rh5 Qa4+ Kc5 Bg5 Bg4 Nc3 Qe7 d8Q Qe8 Bh3 f1Q Qa6 Kb4 Qh7 Nd5 g8Q Ne7 Qgg7 Nc6 Nb5 Be7 f8N Qff7 Rf1 a1Q Ng6 Qc3 Nd6 Bf5 Nf3 Bb1 Nfh4 Ba2 Rhg1 h1B Nhf5 Bd5 Rh1 Be6 Ne3 Bd7 Rf6 Bg4 Re6 Na5+ Kc8 Kb3 Rf1 Qb5 Qdg8 Bd8 Be7 Ka4 Rf6 Qfe8 Rf8 Qf7 Bf1 Rh2 Bh3 Ra7 Qh4 Bf5 Q8h7 Ra8 Qg5 Bg4 Qhh4 Bf5 Qe4 Ra7 Nc6 Bg4 Kb8 Bf5 Rf6 Bc8 Re6 Bb1 Qgh4 Ka3 Qb7 Nb3 Bf6 Ra4 Qhg4 Na5 Qa6 Kb3 Bh4 Ra2 Ka8 Rc2 Nb8 Ka4 Bg5 Ba2 Qh4 Bf6 Qhg4 Be5 Be7 Bg3 Qg5 Bh4
2R1r3/1KB4Q/NRN2B2/n1q1N3/qq3B2/p2nBQpN/P1p4k/2r1q2b w - - 0 1 legal: proof: e4 c5 c4 f5 exf5 Qb6 g3 Qd8 b4 d5 bxc5 dxc4 f4 h5 g4 e6 g5 Bd6 Be2 Be7 Bg4 Bf6 gxf6 hxg4 Kf2 Kf7 Ke3 a5 Ke4 g5 d4 b5 h4 c3 d5 e5 c6 c2 c7 a4 d6 a3 Kd5 e4 d7 b4 h5 e3 h6 e2 h7 e1Q Be3 b3 Nh3 b2 Nc3 b1Q Qd3 g3 Nb5 Na6 Kc6 Qf8 d8B Qb2 Rb1 Be6 c8N g4 Nc7 g2 Ne7 Qbc1 Rb6 g1Q Kb7 g3 Nc6 Nb8 Na6 Qd6 Bc7 Nh6 Rh2 Rf8 h8B Qdb4 Rd2 Ng4 Rd1 Kg8 f7+ Kh7 f6+ Kh6 f5+ Kh5 Qd7 Re8 f8Q Kh4 f7 Nf2 f6 Bd5 Rd4+ Re4 Rc4 Nd3 Qf5 Qcd2 Qh7+ Kg4 Bg7 Qa4 Bgh6 Qdb4 Bhf4 Nd7 Rc3 N7e5 Rc4 Rd8 Rc5 Rd6 Qa8 Kf3 f8N Kg2 f7 Nc4 Ng6 Kh2 f8B Re8 Be7 Bh1 Ne5 Rh6 Bf6 Rh5 Bd2 Rf5 Bfe3 Rf1 Bf4 Qd4 Bde3 Qd5 Qd8 Qd4 Qd5 Qdc3 Qf3 Qd4 Rd5 Qdc5 Rd8 Rg1 Rc8 Na5+ Ka7 Qe2 Ka8 Rc1 Ka7 Qee1 Ka8 Nc4 Kb7 Na5+
QrbBr1r1/3N4/3R2R1/Nk1p3B/b2q1PBr/2R2Q2/1p2K1p1/q1B1n2R w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 exf5 a5 b4 axb4 h4 Nc6 f6 Nd4 d3 Nf5 gxf5 g4 d4 cxd4 Bh3 Bh6 Bf1 Bg5 hxg5 Qb6 Qd3 Qa5 Qd1 Qd8 c4 h5 a4 b5 a5 e5 c5 d3 g6 h4 c6 g3 a6 e4 g7 b3 a7 e3 c7 d2+ Ke2 g2 Ra6 b2 Rc6 h3 Rc2 b4 Rc3 b3 Na3 b1R Nc4 h2 Nf3 Nh6 Nfe5 Ng4 Na5 Rf8 g8R Nf2 Rg7 Nd3 Rg6 Ne1 f7+ Ke7 f6+ Kd6 Nd3 Rb8 a8Q b2 Nc5 Ra1 Qb3 Rg8 f8R Ra2 Nab7+ Kc6 f7+ d6 Qd5+ Kb5 Qf3 d5 Rd6 Qf6 Nd7 Qd4 Na5 Ra4 Re8 Rc4 f8B Rc6 Rg6 Rf6 Be7 Rff8 Rg1 h1R Bd8 Rh4 Ree6 Bb7 Rh1 Bc8 Kd1+ Nd3 Rd6 e2+ Kc2 e1Q Be2 Qeg1 Bd1 Qf1 Be2 d1B+ Kd2 Ba4 Bd1 Bb7 c8B Qfg1 Ke2 Ne1 Nc5 Ba6 Bg4 Bc8 Nd7 Qc5 Rge6 Qgd4 Rg6 Qa3 Bh5 Qa1 Bc2 Rg7 Bf5 Rgg8 Bfg4 Re8+
4B3/1QRNRB1R/nb1Kn1P1/3r1k2/1qq3p1/2RpBb2/b4N1p/Bb1Q4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d3 c5 d4 cxd4 h3 g5 gxf5 a5 h4 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Ke7 Kd3 h5 Kc4 d5+ Kc5 f3 c4 h4 e4 d3 b4 a4 b6 d4 g6 f2 b5 a3 b7 d2 e5 h3 e6 Kf6+ e7 a2 b6 Kg5 f6 Kf5 f7 Bh6 f8B Kf4 e8B Be6 Nf3 Qc8+ Kd6 Bd7 c5 Kf5 c6 Nf6 c7 Nh5 Bc4 f1B Bg7 Nf4 Ne5 Be6 Nd7 Na6 b8R Bd3 Nc3 Bb1 b7 d3 Ne4 h2 Nf2 Bf7 Re1 Ne6 Ra8 Rg8 b8Q Be3 Qb7 Bb6 Ra7 Rh8 Re3 Rh5 Rh3 Rg5 Rh7 Rh5 Bd4 Bg8 Be3 Qb8 Bb2 Qc8 Qg1 d1B Bg7 Bf3 Qd1 Nec5 Bcf7 Ne6 Ke7 Qb8 c8R Qc7 Bf6 Qc4 Kd6 Qb4+ Nc5 Nec7 Bc3 Bc2 Rc1 a1Q Qb8 Qa2 Ba1 Bb1 Rc3 Kf6 Be6 Re5 Bb3 Kf5 Rb7 Na8 Rbe7 N8c7 Qb7 Be6 Bc2 Bb3 Bf7 Ne6 Rcc7 Bc4 Ba4 Qc2 Bae8 Bca2 Ra3 Qcc4 Rb3 Qa4 Nd7 Rc5 Ra3 Qab4 Rc3 Rd5#
2qQ1R1b/r1B2KB1/QqP1R3/pNrBN3/k2ppn1Q/q2B4/8/1q2Q1n1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Ke2 h5 Kf3 e5 Ke4 a5 Kd5 e4 c4 d3 b4 h4 c5 d6 Ke6 d2 g6 h3 b6 d5 f6 h2 g5 f3 b5 f2 g7 d4 g6 Ra7 b7 Rh6 b6 Rh5 c6 Rh8 Nc3 Ra8 Nf3 Ra6 Nb5 Rh5 Qe1 d1Q Ne5 Ne7 g8B Qd3 g7 Qa3 Bf4 Ra7 Bd3 Nd7 b8Q f1Q b7 Ng6 Qa8 Qc8 b8Q Kd8 f7 Qf3 Rf1 h1Q Bg3 Qd1 Rf6 Qb1 Ra2 Be7 f8B Nf4+ Kf7 Qbb3+ Re6 Bf6 Bh2 Rg5 Qh4 Qhb1 Rf2 Qbb4 Rf3 Qc5 Qd6 Qb6 Qb4 Rh5 Qbe1 Rf5 Bh7 Rg5 g8Q Bh8 Nd6 Kc7 Bg7 Rh5 Qf8 Rg5 Bg8 Rh5 Nec4 Rc5 Ne5 Q6b5 Rf1 Kb6 Qfd8+ Ka6 Bc2 Qb6 Nb5 Nh3 Bd3 Nf6+ Kg6 Nd5 Rf8 Ng1 Bg3 Ne7+ Kf7 Ng6+ Nd7 Qbb2 Bc7 Qb1 Ne5 Nf4 Rd6 Rc2 Nc3+ Q1b5 Kf6 Rc1 Bd5 Rc2 Qb8 Qbc5 Re6 Qcb4 Kf7 Qb1 Ne2 Rc4 Nc3 Qbb7 Nd1 Kb5 Nc3+ Kb4 Nb5+ Kb3 Qhe7 Ka4 Q7h4 Qb6 Qb7 Rc1 Qa6 Rc5
BNQB4/2Pb3R/2q2Q1Q/n1Nnp1rQ/4b3/R7/1kp3pn/1Nn1KNq1 w - - 0 1 legal: proof: e4 h5 a4 c5 b4 b5 c4 a5 g4 hxg4 cxb5 f5 d4 fxe4 b6 c4 b5 e6 b7 Bc5 dxc5 Ra6 Ra2 Rd6 Ra1 Rd3 b6 Rb3 Bg5 Rb5 axb5 a4 Bf4 Nh6 Bc1 Ng8 f4 Ke7 h4 Kf6 f5 Ke5 h5 g5 c6 d5 c7 a3 h6 d4 f6 c3 h7 d3 f7 Kd4 f8N e3 Rh6 d2+ Ke2 c2 Ra2 e5 Nh3 g3 Ng1 g4 Rf6 g2 Rf7 g3 Nd7 Nf6 Nc5 Nc6 b8N Qd7 b7 Na5 b6 Rg8 h8Q Rg5 Qh6 Qc6 Rh7 Bd7 Nf3+ Kc4 Nh2 g1Q Ra1 a2 Bg2 Nd5 Nf1 Kb4 Bf3 g2 Ba3+ Kc4 Qf6 Kd4 Qc1 d1B+ Ke1 e2 Be4 Rg6 Qh6 Rg3 Bc1 Rg5 Bf4 Kc4 Bg3 Kd4 Bh4 Kc4 Nba6 Kd4 b8Q Kc4 b7 Kd4 Na3 Kc3 Qc8 Kb2 b8Q+ Kc3 Rc1 a1N Qe8 N1b3 Nb1+ Kb2 Qbc8 Qb7 Nb8 Qa8 Nd2 Qc6 Ra1 Nc1 Qef7 Qa8 Nb1 Qc6 Kd2 e1N Qfh5 B1g4 Ra3 Bgf5 Bf3 Ncd3 Be4 Nf3+ Ke2 Nh2 Bf3 Nc1+ Ke1 Nf4 Be4 Qb6 Bd5 Be4 Ba8 Nd5 Qf4 Rg8 Bd8 Qc6 Qff6 Rg5
Rq1r4/QpQ1N2p/2Q1K1n1/n1P2B2/b2nB2B/N1pRB1nq/1b2k3/2Q5 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b3 a5 b4 axb4 d4 c5 c4 d5 cxd5 c4 Qe2 Ra5 Qd1 Rc5 dxc5 Be6 Bg5 Bd7 Bc1 Bc8 Kd2 Kf7 Ke3 Kf6 Kf4 b3 g4 e6 a4 c3 d6 h3 a5 h2 g5+ Kf7 Ke5 b2 f4 Ne7 g6+ Kg7 d7 Kh6 a6 Qb6 d8B Qa7 f6 Nf5 g7 Ng3 g8B Bd7 f7 Nh5 f5+ Nf4 f6 Kg5 Ne2 Kg4 Bg2 Bh6 f8Q Nh5 f7 Ba4 Bh4 Nf4 Na3 b1Q Be4 Qd3 Qd6 Qh3 f8Q Nc6+ Kf6 e5 Be3 Qb8 a7 Na5 a8Q Ng6 Qf7 Bf4 Ke6 Bh6 Bf5+ Kf3 Qc1 e4 Rd1 h1N Qc6 Ng3 Nf4 Bg5 Nd5 Ke2 Qfd7 Bh6 Bf7 Rd8 Qdc7 Bf4 Qa7 Bh6 Bg1 e3 Rd3 Bb5 Kf6 Qc8 Nb1 Nb3 Qa2+ Kf3 Qcc2 Qb8 Qaa5 Bf4 Qab6 Bh6 Ra8 Na5 Na3 Ba4 Qa7 Bf4 Rd1 e2 Rd3+ Be3 B7e6 e1N Ne7+ Rd5 Qb1 Nc2 Be4+ Ke2 B6f5 Bc1 Ke6 Rd8 Be3 Bb2 Qc1 Nd4+
NKQ1NB2/pb3nP1/2Bn4/3B1Rr1/2rb4/2b5/RNkpb1Qp/2BN2b1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 h4 g5 Kd2 g4 Ke2 Qa5 Nd2 Bb7 Nb1 Qa3 Ke1 Qe3+ Ne2 Qg5 hxg5 Bc6 Ng1 Bxg2 Kd2 Kf7 Kd3 h5 Kc4 d5+ Kc5 d3 b4 h4 c4 g3 f4 h3 f6 Ke6 b6 Kf5 b5 Ke4 g6 d2 f5 h2 b7 d4 b6 d3 f7 Bf3 f6 g2 g7 Na6+ Kc6 e5 b8Q Rh6 Kb7 Nc7 c5 Rh5 c6 Rh6 Ra2 Rh4 Ne2 g1B Qc2 d1B Qc8 Ba3 f8B Be7 f7 Rh6 Nf4 Ba3 Qg2 d2 Nd3 Rh5 Nb2 Bb3 Bc4 Nb5 c7 Bd1 Nc3+ Kd4+ Bd5 e4 Bc6 Bde2 Ncd1 e3 Bd5 Nh6 Bc6 Bf2 Rf1 Bg1 Rf2 Bd5 Rf5 Rg5 Qd8 Rb8+ Ka6 Rg3 c8B Bf1 b7 e2 Be7 e1B f8N Rb3 Be6 Bd6 Qc8 Be2 Nd7 Rg3 Nf6 Rg5 Ne8 Nf7 Bf8 Bb4 Bcd7 Nbd6+ Bb5 Bc6 Bd5 Bh4 Qd7 Rc8 b8N Rc7 Qc8 Bhf2 Nd7 Bc3 Nb6 Be3 Na8 Bef2 Nc4 Kd3 Ncb2+ Kc2 Bbc4 Ba4 Bb5 Rc4 Bd7 Bfd4 Bb5 Ne4 Kb7 Ned6+ Kb8 Rb4 Rf1 Rc4 Bd7 Bb5 B7c6 Ba6 Rf5 Bb7
3QqBbR/B1RN4/2Rp2q1/1bb2B1B/3bpn2/1k1p1P2/b3r1R1/1K4NQ w - - 0 1 illegal: No possible last move
BB1K1RRq/Q2N1N2/2Q4p/3R2r1/rQ1n3p/3r3q/2QPp3/1rRq1bk1 w - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 b5 axb5 g5 e3 gxh4 Nf3 e5 Ng1 Nc6 f4 Nd4 exd4 e4 Nc3 Bd6 Nb1 Be5 fxe5 Qf6 Qh5 Qd6 Qd1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 c5 b4 a5 g5 f5 b6 h6 b7 c3 b8Q c2 e6 e3 g6 a4 b5 e2 g7 a3 b6 a2 e7 c4 e8Q c3 b7 Bd7 Qa7 Bb5 b8Q Nf6 g8R Nd7 Nh3 Nf8 Na3 Bc6 Bb2 c1Q Qc2 Qd1 Rc1 a1R Ng5 Rb1 Qb4 Bb7 Nc4 Ne6+ Ke3 Qf6 Ne5 f4+ Kd3 f3 Ngf7 f2 Nd7 Rd8 Rf8 Ra8 Rg1 Rg8 Bh3 f1R Rg4 Rf4 Bg2+ Re4 Ba3 Qh8 Bf3 Rg5 Rg2 Kc6 Kc4 Qh1 Rg3 Qh3 Bh1 Bc8 Rg2 Re3 Rg3+ Rd5 Rgg8 Rd3 Bg2 Ng5 Bb2 Nf3 Ba1 Bb7 Bb2 Rg5 d5+ Kc7 d6+ Kc6 Kb3 Kd5 Ka4 Bc8 Kb5 Bb7 Kb6 Bc8 Bf1 Nd4 Kc7 Bb7 Qc8 Ke4 Kd8 Kf3 Bg2+ Kf2 Bh1 Bg2 Ba3 Bf1 Bg2 Rb8 Ba8 Rbb5 Qc6 Ra5 Bb2 Ra6 Nc5 Re3 d7 Qg2 Re1 Nf3 Qd1 c2 Be5 c1Q Ke7 Qg3 d8R Reb3 Rd5 Ra4 Qc2 Kg1 Kd8 Qh3 Nd7+ Nd4 Bb8 Re3 Qf5 Qc2 Rc1 Qd1 Qfc2 Rd3
1N1QK1N1/2Q3pN/B1pp3b/2qr4/1q2Pn2/p5B1/2knB1Nb/B2rR1R1 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 h5 g4 hxg4 e4 d6 c4 Be6 b4 Rh4 f4 exf4 b6 Rh7 b7 Rh6 b5 Qf6 b6 Qe5 dxe5 Rh8 Qd2 Bd7 Qd1 Bb5 cxb5 Ke7 Nc3 Kd7 Nb1 Ke8 Ke2 Kd7 Kd3 Ke6 Kd4 a5 h4 f5 h5 g3 h6 g2 h7 f3 Nh3 f4 Bb2 a4 Qc1 a3 Nc3 f2 Nd5 g1B Ne3 f3 Ng2 Na6 b8Q Nb4 b7 Nd5 b6 Nh6 Qd8 Nf7 b8B Ne3 b7 Ng5 Ba7 Nc4 b8N Be7 Be2 Bf6 Bc5 Ra5 Bc3 Rf8 h8N Bh2 Nf7 f1Q Nh6 f2 Ng8 Qe1 Rg1 f1Q Rb1 Rb5 Ba1 Qf5 Qc2 Qa5 Rbf1 Rb1 Re1 Nd2 Ba7 Rd1 Bc5 Kf7 Kd5 Ne6 Kc6 Qb4 Kd7 Bg5 Bf2 Bh6 Bg3 Qh5 Qc5 Nf4 Qa7 Qg5 Ba6 c6 Qac7 Ne2 e6+ Kg6 e7 Qgc5 Bd4 Rf5 Ke8 Rd5 Ng5 Kh5 Bc3 Kg4 Nh7 Kf3 Ba1 Nf4 Kf7 Qb7 e8B Qb3 Bd7 Qbb4 Ke8 Qbb5 Ref1+ Ke2 Bg4+ Kd3 Re1 Kc2 Be2 Qbb4
1q1Q3N/pK5N/NBN1k1q1/1pb1B2r/1RR5/2pn2p1/2nrPb2/1B1B3Q w - - 0 1 legal: proof: g4 c5 f4 h5 a4 hxg4 b3 d5 a5 c4 c3 b5 f5 Qb6 axb6 d4 f6 Be6 cxd4 c3 Nf3 exf6 Ng1 Bc4 bxc4 f5 d5 f4 Kf2 Ke7 d4 f5 h4 g5 c5 f3 Ke3 g3 h5 f4+ Ke4 f2 b7 f3 h6 g4 h7 g2 d6+ Kf7 Kd5 g3 c6 Na6 b8N Bg7 d7 Kf6 d8Q+ Kf5 c7 Bf6 Kc6 Bh4 c8B+ Kg6 d5 Kf7 d6 Nf6 d7 Ng8 Nd2 Nh6 Ne4 Nc7 Na6 Ke6 Nf6 Rb8 Bf4 Nf7 Ra4 Nd5 Rb4 Ne3 Be5 Nc2 Kc7 Bg5 Rhh4 Be3 Rhc4 Bc5 Bb7 Ra8 Be4 Rb8 Qc1 Rb6 Kc8 Rd6 Kb7 Rd2 Qa1 Na3 Bb1 Nc2 Nh3 g1B Bg2 f1Q Ng8 f2 Be4 Qe1 Ne7 f1Q Nc6 Qf6 Bd3 Qg6 Ng5+ Kd5 Bf5 Qd1 Bd3 Bgf2 Bf5 Rg8 h8N Rg7 Bd3 Rh7 Bf5 Rh5 Nh7 Nh6 Be4+ Ke6 Bd3 Ng4 Be4 Ne1 Bec2 Ne3 Ba4 Nd3 Bb3 Qc1 Bd1 Qb2 Qc7 Qa3 d8B Nc2 Qe7+ Kd5 Qh4 Ke6 Bb6 Qc1 Qa5 Qa3 Qh1 Bcd4 Rb3 Qd6 Rbb4 Bde3 Bc5 Bd4 Qd8 Bde3 Bb6 Bd4 Bf4 Bc5 Be5 Qb8+
R4nK1/1pn4n/3Q4/N1bq3P/R2B2kN/2pp1Rp1/2r1B3/NNnQ1R1b w - - 0 1 legal: proof: c4 c5 b4 f5 e4 h5 exf5 a6 b5 axb5 g4 Ra4 gxh5 bxc4 d3 c3 d4 c4 Nd2 Ra5 Nb1 Rc5 dxc5 Qb6 Qc2 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 e5 Kd5 g5 h4 d6 f4 g4 a4 c2 a5 c3 a6 e4 h6 g3 h5 e3 a7 e2 a8R e1N c6 Na6 h7 Nb8 c7 Bh6 Nf3 Na6 Ra4 Qe7 Be3 c1N Nfd2 Bd7 c8N Bf8 Nb3 Ng2 Be2 Be8 Na1 Qg7 Nb6 Qd7 Rf1 Bg6 Nc4 Nh4 Na5 Be8 Bf2 Ng6 Bc5 Be7 Bf2 Nf8 Bd4+ Kf7 f6 Nc7+ Ke4 d5+ Ke5 Qd8 f5 Bc5 Rf3 Bc6 Rf1 Ke8 f7+ Ke7 f6+ Kd7 Kf5 Kd6 Kg5 Ke6 Rf3 Nd7 Kg6 Nf8+ Kg7 Qd7 Bf2 d4 Be3 d3 Bd4 Qd8 Rf1 Bh1 Rf3 Ng6 f8Q Qd5 f7 Nf6 Qb8 Rc8 f8R Re8 h8N Nh7 Kg8 Re7 R8f4 Ngf8 Ng6 Rf7 Nh4 Rf5 Rf1 Re5 Bf3 Re2 Rf5 Rd2 Be2 Rc2 R5f3 Qe5 Nf5 Kf6 Nh4+ Kg5 Qd8+ Kg4 Qd6 Qd5+
RNkn2b1/Bqp2p1p/n1P4n/1q2R3/2nB1Q1Q/R7/R1Q1p3/2rQ1KN1 w - - 0 1 illegal: Other
5qQR/2ppQRB1/6bb/4r3/1n1k1N2/QpNPN2K/1Q1q2p1/1b2B1Nb w - - 0 1 legal: proof: f4 e5 g4 h5 c4 a5 Bh3 b5 Bg2 b4 Bf3 Nc6 Be4 f5 Bf3 Nce7 fxe5 f4 b3 Nf5 gxf5 Ra6 Bg4 hxg4 Kf1 Rb6 Ke1 Rb5 cxb5 a4 Kf2 axb3 Kf1 Bc5 Ke1 Bf8 Kf2 Ke7 Kg2 g5 e4 g3 h4 g4 a4 b2 f6+ Ke6 f7 b3 a5 Bh6 f8B Qe7 d3 Bg7 b6 Qa3 h5 Qe7 a6 Rh7 h6 Qc5 b7 Bh8 b8Q Nf6 a7 Rf7 a8Q Qe7 h7 Nh5 Nc3 b1B Qc2 Rf6 Qb2 Bb7 Qaa3 Rf5 Bd2 Bg7 h8N Bh6 Be1 Nf6 Ng6 Nd5 Bg7 Nb4 Rh5 Qf8 Rh4 Bg5 Rh8 Bh6 Qd8 Qf7 Qg8 f3+ Kh1 g2+ Kh2 g3+ Kh3 f2 Nf4+ Ke7 e6 Kd6 e7 Kc5 e8Q f1B e5 Be4 e6 Qf8 e7 Re5 Qef7 Kd4 e8N Bg6 Nf6 Be2 Ng4 Bf3 Ne3 Bfe4 Qe7 Bb7 Kh4 Bc6 Ngh3 g1Q Ra2 Qg2 Ng1 Qc2 Kh3 Bh1 Ra1 Ba2 Rd1 g2 Rd2 Bb1 Rf2 Bf7 Nh5 Bg6 Rf7 Qd1 Nf4 Qd2
2rNb3/1NBk4/3Bp1pp/r1R3pr/qQ3b1B/1N2NQR1/2KP2rq/7B w - - 0 1 legal: proof: c4 d5 a4 dxc4 h4 b5 axb5 g6 e4 Nf6 h5 Nc6 h6 Nd5 exd5 Nd4 g4 Ne6 g5 Ng7 hxg7 f6 Qf3 fxg5 Qb3 Kf7 Qd1 Ke8 g8Q c5 f4 a5 b4 a4 d6 e6 d7+ Ke7 b6 h6 b7 a3 b8B a2 b5 c3 b6 c2 f5 c4 b7 c3 Bg3 Ra4 b8B Ra6 Qf3 Rb6 Ba3+ Rd6 Bh4 Qb6 d8N Qa5 f6+ Kd7 f7 Rd4 Bg2 Bg7 f8N+ Ke8 Rh3 Ra4 Bh1 Rd4 Ne2 Bd7 Bad6 Be5 Nc1 Rg4 Na3 Bf4 Rg3 Qa4 Nb3 c1R+ Ke2 c2 Kd3 Rd1 Nc4 c1Q Ne3 Qc7 Rc1 a1R Rc5 Rg1 Qg7 Rg2 Kc2 Bb5 Qc3 Rh2 Rg1 Rgg2 Nd7 Rf8 Qb4 Bc6 Be1 Rh5 Bh4 Rh8 Ne5 Rf8 Nef7 Kd7 Nb7 Rc8 Nfd8 Qa6 Be7 Ra5 Bf8 Qe5 Bfd6 Qb5 Bbc7 Qa4 Nf5 Qe2 Ne3 Qf2 Qfe4 Qg3 Qd5 Qh2 Qf3 Rf2 Rg4 Rg2 Rg3 Ke8 Be5 Bd7 Nd6+ Ke7 N6b7 Be8 Bed6+ Kd7
2N3nk/1p1B2RP/4Kq2/NR1p1Q2/3q1Rpq/1QnNbp2/4b3/Bq2R1N1 w - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 cxd4 g5 e5 fxe5 Qf6 Nh3 Qe7 Ng1 Qd8 h3 h5 h4 Ra6 Bf4 Rhh6 Bc1 Rag6 gxh6 Rg5 Qd3 g6 Qd1 Rf5 Qd3 g5 Qd2 g4 Qd1 Rg5 hxg5 Qf6 Nd2 Qb6 Nb1 Qd8 Kf2 f5 Kg3 Kf7 Kf4 d5 a4 h4 e4 b3 c4 d3 a5 b2 a6 h3 c5 d2 g6+ Ke6 h7 h2 g7 Kf7 a7 Qh4 a8N Qe7 e6+ Kf6 c6 Qf7 e7 Na6 e8Q Be7 e5+ Kg6 e6 Bd7 Ke5 f4 c7 f3 c8N Nf6 g8R+ Kh6 Nab6 Qg7 Qf8 Ba3 e7 Be6 e8R Bc5 Qb3 Bb4 Nd7 Kg6 Ra4 d1Q Na3 b1Q Nc4 Nc7 Bb2 Bc5 Ba1 Nb5 Na5 Nc3 Rf4 Bf5 Bb5 Be3 Nc5 Bd3 Bd7 Be2 Ke6 Qd4 Nd3 Kh6 Qf7 Qh8 Rg5 Ng8 Qf5 Qhg7 Re7 Qf8 Rgg7 Qd8 Nh3 Qf8 Re1 h1Q Ng1 Qh4 Ref7 Qdc5 Rb4 Qd4 Qe5 Qfd8 Rf4 Qdg5 Qf5 Qd8 Rf7 Qdg5 Rb5 Qd8 Rf6+ Kg7 Rf7+ Kh8 Rg7 Q8f6+
k4b2/3pQ1RN/3ppQ1K/6bB/Nq2r1p1/Qp4Nr/P1Qr1B1R/1Nn5 w - - 0 1 legal: proof: g4 f5 b4 a5 bxa5 Ra6 e4 fxe4 f4 Rf6 d4 Nh6 d5 Ng8 f5 Ra6 d6 cxd6 f6 Ra8 h4 b6 Qd3 Bb7 Qd1 Bd5 Nf3 Be6 Ng1 Bf5 gxf5 Qc8 Qd5 Qc7 Qd1 Qd8 Bf4 g5 Bh3 g4 Bh6 Na6 Bf1 Nc7 Bf4 Ne6 Bc1 Ng5 hxg5 Rc8 Nf3 Rb8 Ng1 Ra8 Kf2 h5 Kg3 e6 Kf4 b5 c4 e3 c5 b4 g6 e2 Kg5 e1B a6 b3 g7 h4 a7 h3 c6 h2 c7 Rh6 c8N Qc7 f7+ Kd8 f6 Ba5 Bd3 Be7 f8N Qb8 Be3 Kc7 Bg6 Kb7 Ne2 Bed8 Nh7 Bb4 Bh5 Be1 Bf2 Be7 Ng3 Bf8 f7 Rf6 Qc2 Ne7 g8Q Ng6 Nb6 Nf4 Qgg6 Nd3 Na4 Nc1 Rf1 Rf4 Qf6 h1R Qe7 Re4 Qf6 Bg7 f8Q Rh2 Q8e7 Bf8 Rh1 Rh3 Rh2 Rd4 Kg6 Rd2 Kg5 Qc8 Kg6 Qc3 Kg5 Rc8 Kg6 Rc4 a8Q+ Kc7 Qa5+ Kb8 Qc5 Re4 Qa3 Ka8 Kg5 Bg7 Kg6 Qb4 Kg5 Bh8 Kh6 Rdd4 Bg1 Rc4 Nf1 Rg3 Qf4 Nd3 Nbc3 Rh3 Rd1 Rc5 Nb1 Nc1 Rd5 Bh4 Rg5 Rd5 Ng3 Rd2 Bf2 Bf6 Qf8+ Bd8 Rg7 Be7 Q8f7 Bf8 Qe5 Bf6 Qe7 Bh4 Q5f6 Bg5+
q5NN/Bnn2B1N/bR1q1NQ1/4BQ2/2q2n2/2R2n2/Bbn1rPrk/1b3K2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 b4 h5 d4 e5 d6 Ke6 g5 Kf5 b6 a5 g6 c5 d7 c4 b5 c3 b7 a4 b6 e3 d5 a3 g7 c2 d6 h3 Nf3 Kg4 Qd5 e2 Qa5 h4 Bg2 a2 Nc3 h2 Bf1 e4 Bb2 c1Q+ Nd1 h3 Bg2 Ne7 g8B Nec6 Rg1 h1Q Rb1 a1N Bf7 h2 Ng5 Rg8 Nh7 Na6 b8B Nc7 b7 Bg7 Ba2 Bh8 Ba7 Qc4 b8N Ba6 Nc3 Re8 Qe5 Na5 Nc6 Re6 Bf3+ Kh3 Nd5 Qf6 Bbd4 Rg8 d8Q Qg2 d7 h1B Qg5 Kh2 Qc8 Re5 d8N Qd6 Nf7 Rg6 Kd2 e1N Rb6 Nd3 Ke2 e3 Rc1 Nf4+ Ke1 e2 Bh5 Re3 Nce7 Be5 Ndf6 Qa8 Bb2 Be4 Qcf5 Nb7 Neg8 Bb1 Nh8 Bd4 Qh6 Rg2 Qhg5 Re8 Bf7 Re3 Qgg6 Re6 Kd2 e1N Kd1 Nf3 Bc3 Nd3 Bb2 Be5 Ke2 Bc3+ Kf1 Re2 Rc2 Nf4 Rc1 Ba5 Bd4 Bc3 Be5 Bb2 Rc3 Nc2
1q2r1NB/5kqr/bB1RqB2/Q3nBQ1/1q1N1b1K/4P3/1R3NN1/1rqb3n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 b4 f5 d4 h5 g4 a5 g5 c4 b6 c3 b7 f3 b5 h3 Kg3 h2 b6 c2 e3 a4 d6 f2 d5 f4+ Kh4 f3 d7+ Kf7 d6 a3 Bh3 f1R Bd2 c1Q Ne2 f2 Nf4 a2 Bc3 Bh6 Bf6 Ne7 Bf5 Nbc6 b8N Rh7 b7 Ne5 Qg4 Qh8 Rg1 h1B d8Q Bf3 d7 Qd2 Rh1 Qb4 Nc3 Rb1 Ne4 f1Q Nf2 Qfc4 Qa5 Qe6 Nc6 Qd8 b8B Ba6 Bc7 Qdb8 d8B Bd1 Ng2 Bde2 Kh3 h4 Bb6 Bf3 Rd1 Bfe2 Be4 Nf5 Nd4 Ng3 Bf5 Nh1 Bh8 Bf3 Qf4 Bfe2 Bdf6 Bh5 Kh2 h3 g6+ Ke8 g7 Kf7 Qg3 Bf4 g8N Qb7 Nf3 Re8 Nd4 Qb8 Rd3 Rd1 Rb1 a1Q Rb2 Rb1 Rd1 Qaa3 Kg1 Qac3 Qg5 Qc1 Nh4 h2+ Kg2 Qcc7 Kh3 Qce7 Ng2 Qf8 Rd3 Qg7 Ne2 Ng3 Kh4 h1Q+ Bh3 Qg1 Bf5 Nh1 Rd6 Qc1 Nd4 Bd1+
k2n2RK/2r1n2B/bbN1q2R/8/1QN1Qr1b/b2PN1rq/1B2B1nb/N2B4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 Kc7+ Ke5 Kb7 b4 f5 e4 h5 g4 a4 d3 f3 g6 f2 g5 h4 b6 f4 g7 f3 b5 h3 g6 c3 Bb2 h2 Qe2 c2 Nd2 c1B Nb3 a3 Nh3 a2 Nf4 c4 Nd5 c3 Ne3 Ne7 Kf6 c2 g8B Ra7 e5 Qd6+ e6 Nbc6 g7 Nd8 Bh7 Ka8 g8B Rc7 Rb1 Qd5 Na1 Ba6 Qe1 Qd7 Be2 f1R Rg1 h1Q b7+ Kb8 Qh4 f2 Qe4 Qh3 Rg2 Ka7 b8N Qd5 b6+ Ka8 Bf7 Rg8 Nc6 Rg3 Bfh5 Bh6 Bhg4 Bg5+ Kg7 Bh4 Kh8 Bd2 Bd1 c1B Bge2 Bb4 Rh2 Ba3 Rh1 Bd2 Rg1 Ba5 Rh1 Ng8 e7 Qde6 e8N Ne7 Rh2 Rg4 Nd6 Rg3 Nac2 a1B Ndc4 Rfg1 Rg2 f1N Rc1 Rf3 Rg8 Rf4 Rb1 Bae1 Rc1 Beg3 Rb1 Bh2 Rc1 Kb7 Rb1 Rg3 Rc1 Kc8 b7+ Kd7 b8Q Bg1 N6d4 Qg2 Qb4 Kc8 Nc6 Bg5 Be5 Bd4 Na1 Bb6 Nd5 Kb7 Bc2 Ka8 Bb2 Ne3 Rf1 Qh2 Bcd1 Ng2 Re1 Bgf2 Rh1 Bg1 Nde3 Qhh6 Rh5 Bh2 Rh4 Qh3 Rh5 Q6e6 Rh6 Bh4
1Q1Rq2r/1Bb4B/1b2kn1r/1n3r2/NN1rnB2/1NP1r1N1/Q3B1K1/1qR4b w - - 0 1 illegal: No possible last move, all moves rejected
2N2kB1/q1QR1b2/2N2r2/1N2Q1b1/1n1B1rP1/1K1bq1RB/Nb2rnB1/1n5b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 b4 f5 g4 h5 c4 a5 Kc2 a4 e4 a3 g6 d3+ Kc3 d4+ Kb3 a2 g7 d2 b6 h4 e5 d3 b7 f3 c5 f4 b5 h3 e6 f2 b6 h2 c6 f3 c7 Qe7 Nc3 Ra4 Nge2 Nc6 b8N Nb4 b7 Nf6 g8B Bh6 Ng1 Ne4 Kb2 Bg5 Qe1 d1N+ Kb3 d2 Nge2 Kf8 Rb1 a1B Nb5 Bb2 Rg1 h1B Nec3 Rh2 Bh3 f1B Na2 f2 Nc6 Ndc3 b8Q Bd3 Rg3 f1R Ra1 Nf2 Qe5 Qd7 Qa7 Bb7 c8N Nb1 Qa5 Qd4 Qac7 Qe3 e7+ Ke8 Ncd4 Bbe4 Nc6 Bg6 Bh7 Kf7 e8B+ Kf8 Bg8 Qa7 Bd7 Bf7+ Be6 Ra6 Bd5 Rb6 N6e7 Rf6 Nc6 Bd4 Bb2 Rf4 Bc3 d1Q+ Kb2 Qc1+ Kb3 Qe3 Bb2 Nc3 Rd1 Nb1 Ba1 Bb2 Rd2 Ba3 Bd4 Bb2 Bg2 Rh6 Bh3 Re6 Bdg2 Re1 Rc2 Rf1 Rc5 Re1 Rd5 Re2 Rd7 Ref6+
1nRqqb2/R1RNR3/q4b1B/7k/n1P1Q1b1/b1NQ4/3n4/b1NBKNrr w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 c4 e5 f4 g5 b4 a5 f6 Kg6 f5+ Kh5 f7 d5 b6 a4 b7 d3 f6 d4 b5 e4 b6 a3 Nc3 e3 Qe2 a2 Qd2 g3 Be2+ g4 Bd1 e2 Nf3 g2 Nh2 g1B Nf1 g3 Rh3 g2 Re3 Ra3 Re7 Bg4 Qe3 Rb3 Qe4 Rb1 Bh6 Be3 Rc7 g1B Re7 Rc1 Rc7 Ba3 f8N Bg5 f7 Bf6 Ne6 Bh2 f8N Bhd6 Nd7 Bf8 Nec5 d2+ Kf2 d3 Nb3 Rb1 Nc1 Qc8 Bc2 d1N+ Ke1 Nb2 Bd1 Na6 b8Q Na4 Qa7 Nb8 b7 Qe8 Qae3 d2+ Kf2 Qe6 Q3f3 Qa6 Qfd3 Nc6 b8R e1Q+ Kg1 Qe2 Re8 Nb8 Re7 Qe1 Qed4 Qe4 Kf2 Qg6 Q4e4 Qe8 Bc2 d1Q Bb3 Qc2+ Ke1 Qb2 Bd1 Qbb6 Rb7 Qbd8 Ra7 Rb5 Rb1 Rg5 Rbb7 a1B Rc7 Be2 Qc2 Rg1 Qed3 Kg4 h5 Kh4 Qe4+ Bg4 Qcd3 Rh7 Bf4 Rh8 h6 Kh5 h7 Bh4+ Qg3 Nf6 Bh6 Bg5 Qe2 Ne4 Qgd3 Nd2 Qee4 Rg8 h8R Rh1 Rhh7 Bf6 Rhf7 Bh8 Rf5+ Rg5 Rfc5 Bf6 Rc8 Be2 R5c6 Rgg1 R6c7 Bg4
q2RB1K1/1nqbPb1N/1q5b/N3k2r/1Br1N3/R3NqRQ/3n1R1q/4Qn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 c4 b6 c3 b5 h3 b7 f3 g5 a4 g6 h4 b6 h2 g7 f6 Na3 f2 Nc2 a3 Bd2 a2 Nf3 h3 Ne3 c2 Ng5 c1Q Nh7 Ne7 g8R Na6 b8N Bb7 Rg3 Qc5 Nc6 Qc7 Qe1 Bh6 Na5 Bc8 b7 Ng8 b8Q Bd7 Qb3 Rc8 Bb4 Qb6 Rhg1 h1Q+ R1g2 h2 Qa3 Qg1 Qac3 h1Q Qa3 Bc6 Kf5 Bd7+ Kg6 f5 Kf7 f4 Rh2 f3 Bh3 f1B Rf2 Bb5 Bd7 Qgh2 Be8 Nf6 Qd3 Ba4 Qf5 Ne4 Qh3 Bg5 Kg7 Nd2 Kf7 Bd7 Kg7 Bh6+ Kf7 Kc7 d6+ Kb8 d5 Qcc7 Rc1 a1Q Rc3 Nc5 Ra3 Ba4+ d7 Nb7 d6 Bc2 Ke6 Bg6 d8N Qd1 Nf7 Qa4 Qf5 Bh3 Nfg5 Qd1 Kf6 Q1g2 Qd3 Bd7 Qf5 Qa4 Qh3 Qf1 Ne4 Qac6 Rfg2 f2 Ke7 Qfh1 Kf6 f1N Rf2 Qf3+ Ke7 Bg4+ d7 Qa4 Nb3 Qa8 Na5 Qcc6 d8R Kc7 Nf8 Bd7 Nh7 Bgf5 Kf7 Qcc5 Neg5 Kd6 Ne4+ Ke5 Qh4 Qcc7 Qh3 Bf4 Kg7 Rg8+ Kf7 Rg5 Kf8 Bg6 Kg8 Rf5 Nef6 Ke6 Ng2 Qe5 e4 Rc4 Ne3 Qec7 e5 Bg5 Ne4 Bh6 Nd1 Kd5 e6 Rh5 e7 Ke5 Ne3 Bf7+
R1b5/3q2rB/5R1r/3QN1Rq/3nbqn1/1r2RNb1/N1kN1BPn/2b2K1Q w - - 0 1 illegal: No possible last move
1R4bB/4Nr2/4q1Qr/nQ1b1Q1n/Rq1NQN2/3r4/qP1bKN2/1k2nBb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Ke7 d4 Kf6 g4 a5 b6 h5 d6 c5 b7 a4 d5 Ke5 d7 f5 d6 a3 g5 f3 g6 f4 g7 c4 Nd2 Kd4 e5 f2+ Ke2 a2 e6 c3 e7 h3 e8Q h4 Kf3 c2 Qde1 h2 Qg6 h3 Qf7 Qe8 d8N Rh6 d7 Nc6 b8Q Ra3+ Qbb3 Qe6 Bb5 f1N Rb1 a1Q Bd3 Ne3 Qg3 Na5 Qg4 Nf6 g8Q Qa2 Kf2 Nh5 Qff5 Ng2 Q8g6 Ne1 Bf1 Bc5 Ne4 f3 Bd2 c1B Qb5 Rd3 Ra1 Ba7 Bb4 Bd2 Bf8 Bb7 Be7 Bd5 Bf6+ Qe5 Bh8 Bg8 Qbc6 Bc5 Ne2+ Kc4+ Nd4 Qe6 Rg1 h1B Qb6 h2 Nc6 Bg2 d8N h1Q Ne7 Qh2 Qc6 Qb8 Qgf4 Qb4 Qd7 Qa6 Ne6 Qd6 Q4e5 Qdb6 Nf4 Qe6 Nf6 Ba7 Ng4 Bb6 Qee4 Bh1 Bh3 Bc5 Kf1 f2 Ke2 f1R Rg3 Rff3 Bf1 Bb6 Nf2 Ba7 Ndc6+ Kb3 Qdd5+ Kc2 Qb5 Qaa4 Ra2 Kb1 Nd4 Qab3 Ra4 Qa2 Rg5 Bb6 Qh3 Bg2 Rd5 Bh1 Rd8 Ba7 Rb8 Bb6 Ng2 Rf7 Nf4 Bc5 Qhf5 Ba7 Nc2 Bae3 Nd4 Bg2 N2h3 Bg1 Nf2 Bh1 Qee5 Bc6 Qee4 Bd5
1B2B2N/3rQr2/R2qb2k/3b3q/2R1QR2/n3Nn1q/P1bbQKnR/Q6r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kf7 d4 Kg7 f4 h5 f6+ Kh6 d6 b5 d7 c5 f7 e5 d5 b3 d6 e4 f5+ e3 f6 h3 Bc4 b4 Qf3 h2 Ba6 b2 Qd5 h4 Bb5 h3 Qe6 c4 Ne2 c3 Qe7 c2 Na3 b1N Nf4 e2 Kf2 e1R Qe4 b3 Nc4 b2 Ne3 Ne7 Ng6 Rh7 Nh8 Nf5 Bc6 Qa5 d8Q Nh4 d7 Qh5 Qde7 Na3 d8Q b1B Qd2 Ng2 Qe2 Ra7 Be8 Be6 Bb2 c1Q Be5 Nc6 Bb8 Bg7 f8Q Qd1 f7 Bc2 Rc1 Nd4 Qg8 Qd2 f8R Nf3 Rf4 Rd7 Qgf7 Bc3 Qff6+ Qg6 Qfe5 Qd6 Q5d4 Bd2 Qa1 Rf7 g5+ Kh5 Qd8 Qh7 g6 Kh6 g7 Qf5 g8R Qh5 Qe7 Rd1 Rf1 h1B Rg3 h2 Rh3 Nge1 Rg1 Bg2 Rf1 h1Q Rhh4 Qh3 Rh1 Qf5 R1h2 Qh3 Rb1 Bh1 Rb6 Ng2 Ra6 Rh7 Rf5 Nf4 Q4d3 Ng5 Qac3 Rf7 Qa1 Bhd5 Rg4 Ng2 Rc4 Rb1 Rff4 Rh1 Qe4 Nf3
Nrnq1rBb/4nnB1/bqQr4/1BB2n1R/R1Pq2Q1/3K4/3bR3/1R1N1k2 w - - 0 1 illegal: No possible last move, all moves rejected
1Q2R3/1B2K1bb/b4Rbn/rrB1Pq2/q1Q1b1b1/3bnN1k/4QR2/1N1RQ3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 c4 a5 b4 d5+ Kf3 Kf5 g6 d3 e3 d2 b6 d4 g7 d3 g3 h4 b7 h3 b5 a4 b6 a3 c5 a2 c6 h2 c7 Qg5 Ne2 Na6 b8Q Nh6 g8Q Bg7 b7 Nb4 Rg1 h1B+ Bg2 Nd5 Rf1 Ra5 Qe1 d1B Ba3 d2 Qe8 Bc2 Bc5 d1B Rf2 Bd3 Qb5 B1c2 Ng1 Re8 Qc4 Re5 Qe2 Qh5+ g4+ Kg5 e4 Kh4 Qa7 f5 b8Q Ne3 Qe1 Bd7 c8R Be8 Qb2 Bg6 Re8 Rd5 e5 Qg5 Bb4 Rdb5 Bc5 Qf6 g5 Be4+ Ke2 f3+ Kd2 f4 Kc3 Qf8 Kd4 Qf5 Qb8 Bh7 g6 Kg3 Re2+ f2 Nf3 Kg4 Rf8 f1B Rf2 Bfd3 Rf6 Bd1 Qbe2 B1c2 Nc3 Kg3 Rc1 a1Q Rd1 Qa3 Nb1 Qa4 Bh3 Bg2 Bg4 Bh3 Bh5 Bf8 g7 Bg4 g8R Bg7 Re8 Kh3 Bf7 Bg6 Bd5 Bh7 Nfd2 f3 Bb7 Qh5 Rg2 f2 Nf3 f1B Rf2 Ng2 Bf8 Beg6 Bc5 Qf5 Kd5 Ne3+ Kd6 Be4 Ke7 Bcd3 Qd4 Rb2 Qd5 Ba6 Qdc4 Rbb5 Qb2 Bfd3 Qbc2 Bd5 Qce2 B5e4
nQq5/1NQ4B/1Q1K2rN/q1nR2Nr/1Rq1bq2/Bb4N1/2P2k1q/2Q1b1q1 w - - 0 1 illegal: No possible last move
Q3KQBQ/bbbN2BN/1nr2b1b/B1b2Q2/5R2/1Rnq1Pq1/k4r2/B6q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 b4 a4 b6 h3 g5 a3 g6 a2 b7 h4 g7 e3 b5 h2 b6 e2 f3 e1B Bc4 h3 Bb2 Bg3 Nc3 Nf6 g8Q Rh6 Na4 Ne4 Qh8 Nc3 Nc5 Nd7 b8B Bb7 Rb1 a1B Qc2 Ra2 Qf5 e6 Bb3 e5+ Kc4 e4 d4 e3 Ba7 Bc8 b7 e2 b8Q e1B Qa8 Bef2 Kb4 Nb6 Nd7 Bb7 Bc4 Nd1 Kb5 c5 Bc3 Be3 Rb3 Rf2 Bb2 Be7 Bc3 Bb2 Qhf8 Ba3 Ba1 Bgf4 Qh8 Qg8 Qaf8 Qg3 Qa8 Bf6 Bb8+ Ke7 Bd6+ Kf7 Bf8 Bc7 Bg7 Ke7 Ne2 Kd6 Nf4 Bb4 Ng6 Ba3 Re1 h1Q Ngf8 h2 Nh7 Qf1 Re2 h1Q Re1 Bd2 Re4 Be3 Rf4 Qe2 Bd3 c4 Bb1 Bc5 Ba2 Ke7 d6+ Kf7 d5 Qd3 Ndf8 Rg6 d7 Rh6 d8B c3+ Rc4 c2 d6 c1B d7 Bc8 Kc6 Nc3 Rf4 Rg6 Rh4 Bh6 Rf4 B1e3 Be7 Bed4 d8Q Be3 Nd7 Ba6 Qh5 Ke6 Qdf8 Bb4 Ne5 Nbd5 Ra3 Rg4 Rf5 Ba7 Bc4 Rd4 Rf4 Re4 Bc5 Re3 Bb6 Bc5 Ba5 Bc8 Nd7 Ba6 Nb8 Re5 Bb5 Nb6 Qg6 Re3 Bc4+ Ke5 Bg8 Bc8 Rf5+ Kd4 Qh5 Re5 Qg5 Rd5 Qh5 Kc4 Rf4+ Qe4 Qf5 Qd4 Ra2 Kb3 Rb2+ Ka3 Rb5 Ka2 Rb3 Qd3 Qe8 Bce5 Qf8 Rd6+ Kc7 Bb7 Nd7 Rf1 Qe7 Re6+ Kd8 Rf2 Ke8 Rc6 Qf8 Bc7
1Qrn1b1k/b3b1bb/B6K/1r1B1NN1/B5qP/2Rn4/1QR2b1R/B2qRq2 w - - 0 1 illegal: No possible last move, all moves rejected
1B1nN3/1N3rqB/1RRR3K/1N2n3/1kr1Q1bP/q2q1N2/1b2qR2/q4nqQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 a5 b6 g5 b7 c4 b5 g3+ Kf3 g4+ Ke2 g2 b6 a4 Ra2 a3 Nc3 f3+ Ke3 f2 Kf4 g3 Bd3 f1Q+ Rf2 a2 Nf3 Nd7 b8R a1Q b7 Ne7 Kg5 g1Q Bf4+ Ne5 Bb1 g2 Nb5+ Kd7 d6 Kc6 d7 c3 d5+ Kc5 d6 c2 Rh2 c1Q Bc2 Qe8 d8R N7c6 d7 Rh7 Qd3 Rg7+ Kh6 Qca3 Bg3 f4 Rh1 Ng6 e5 Kb4 e6 Nge5 e7 Ra4 Qe4+ Qc4 Bd3 Qcd4 Bh2 Qgf1 Bc2 Qfd3 Rc1 g1Q Bb1 Na5 Rc6 Rf7+ Kh5 Bg7 Bc2 Qg8 e8N Q4c4 Bg3 Bh8 Kh6 Qg4 Qd4 Qe2 Bh7 Qg8 Qe4 Qed3 Rb6 Nac6 Ra8 Qe2 b8Q Qcd4 Raa6 Qg7+ Kh5 Qdc4 Qa8 Qcd4 Qg6 Qdd3 Qe4+ Kb3 Qb7 Rc4 Qa8 Kb4 Bh2 Bb7 Rc8 Nd8 Rcc6 Bc8 Bg3 Ne6 d8N Bd7 Nb7 Nd8 Rg6 Bg4+ Kg5 Qf6+ Kh6 Qe7 Rgd6 Qd7 Nd2 f3 Rbc6 Qe7 Rab6 Qc7 Rh2 f2 Nf3 f1N Rf2 Bf6 Qc8 Bh5 Qh3 Bg4 Qg2 Nd7 Qh1 Bb2 Rg6 Qe5 Bh2 Qf6 Bb8 Ne5 Rd6 Qh8 Rdc6 Qg8 Rgd6 Qg7+
2Q1Q3/1Qn1rRBq/R6n/3N4/2Qqq1Pk/R4B1b/2n1nR1K/2Nnr1bn w - - 0 1 illegal: No possible last move, all moves rejected
n1n1Kr1N/1rRN3N/1B2k1Bn/4B2Q/B1b2P1n/qb1Q4/1brN1r2/4Rr2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 e5 g4 c5 b4 h5 f4 a5 d4 a4 d6 a3 g5 h3 b6 a2 d7 h4 g6+ Ke6 b7 h2 g7 h3 b5 c4 b6 c3 Qa4 Qe7 d8N+ Kf6 d5 c2 d6 Rh7 d7 Na6 b8Q Nh6 g8B Nc7 b7 Qa3+ Qb3 Bg7 Bb2 c1R Kf2 e3+ Kf3 e2 Ke4 e1R+ Qe3 Re2 Be6 Rf2 Nf3 Rc3 Rg1 h1B Bf5 h2 Bg6 Ke7 Rg5 Rcc2 Nd2 Bg2 Qd4 h1N Bb5 Bf1 Ba4 Bh8 Rb1 a1R Nf7 Ba6 Qd3 Ng3+ Ke3 e4 Rc5 Rg7 Kd4 e3 Ke5 e2 N3g5 e1N Nh7 Ne4 Qa7 Ng2 b8N Bb5 Qa5 Nd6 Bc3 Nh4 d8B+ Ke8 Kf6 Be6 Rc6 Bb3 Bb2 B5c4 Qh5 Nc8 Rh1 Ra5 Rg1 Na8 Bb6 Ra7 Rc1 Rb1 Nd7 Rb7 Rc7 Rg8+ Kg5 Be5 Nh8+ Ke7 Ba1 Bd4 Rd1 Bc5 Be5 Bd4 Rh1 Bb2 Rc1 Kd8 Kf6 Re8 Kg7 Ke7 Rh1 Ke6 Rf1 Re7+ Kf8 Rf7+ Ke8 Rd1 Re1 Rb1 Re4 Rbf1 Re1 Rf8+
7r/NbRN2b1/k3BrP1/1rqQR3/Nn3NKb/rn2b3/B3BQ2/r3B2n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Ke2 a5 g4 h5 c4 e5 b4 d5 f4 Kd7 f5 Kc7 f6 Kb7 b6 e3 Kf3 a4 g6 h4 f7 e4+ Kf4 h3 g5 a3 g7 e2 b5 e1B c5 e3 g6 h2 Qe2 d3 Qg2 a2 Nc3 e2 Na4 d2 Nh3 d1R Bd2 Na6 Rc1 Ne7 g8B Nf5 Kg4 a1R Nf4 Bg7 f8Q Bf2 Be1 Qd6 Qf3 Nb4 c6+ Kb8 b7 Ka7 b8N d4 c7 d3 Rc4 d2 Qd5 Rdb1 Nd7 d1R b6+ Ka6 b7 Nd4 Be6 Nb3 b8N+ Ka7 Rc1 Be3 Nc6+ Ka6 Na7 Bb7 c8B Qc5 Rg1 h1N Rc2 Qd6 Rc7 Qc5 Qf6 Rdc1 Qh4 Rc3 Qf2 Rf8 Rg2 Rf6 Rh2 Rb8 Rh5 Rb2 Re5 Rd3 Bc3 e1B Be2 Rbb1 Qff3 B1f2 Be1 Bh4 Qf2 Ra8 Bf7 Rb2 Ndb6 Rb8 Bce6 Rh8 Nd7 Rba2 Nab6 Ra5 Na4 Rb5 Qe4 Nd2 Ba2 Rb3 Be6 Ra3 Qd5 Nb3
1NQ2b2/6r1/2b1n2b/NKRq4/4BB1b/1nb1RQB1/n1P1N3/rk1qnBN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 a5 e4 f5 b4 g5 h4 d5+ Kb3 f4 Ka4 f3 b6 d3 b5 d2 h5 d4 h6 d3 b7 g3 b6 f2 h7 g4 Bh3 f1N Qe1 d1Q Nc3 d2 Qe2 g2 Qa6 Nh2 Nd5 Bd7+ Qb5 Bc6 Nf6 Qd5 Bb2 Nd7 b8N Nf3 b7 Ne1 Rc1 Ne7 Nh5 Ng6 Ng3 Nf4 N3e2 Rg8 h8Q Rg7 Bd4 Ra6 Bf2 Ra7 Bg3 Nc5+ Ka3 a4 Kb4 a3 Qd3 a2 Qf3 a1B Rh2 Kf7 e6+ Kf6 e7 Ke5 e8N Nb3+ Nd6 Bd4 Rb1 Ra1 Rb2 Bf2 Ra2 Bd4 Ra5 Bb2 Rc5 Bc1 Nc3 Kd4 e5 Ne6 Nc4 Bb2 Bf4 g3 Na5 Bc1 Bf5 Bb2 Be4 Bc1 Nh3 g1B Re2 g2 Re3 Bf2 Ng1 Bh4 Bg3 Bd6 Qc8 Bf8 Nh3 g1B Bf4 Bgf2 Ng1 Bb2 Bg3 Bg5 Bf4 Bfh4 Bg3 Nd8 e6 Bh6 e7 Ne6 e8B Qc1 Na6 d1N b8B Qd2 Bbf4 Qe2 Na4 Nc3 Nb8 Qd1 Bd7 Bb7 Bc6 Na2+ Kb5 Ba8 Bb7 Bc3 Ba6 Bb7 Nb2 Ba8 Nd3 Bb7 Nc1 Ba8 Kb6 Bc6 Bf1 Bd2 Bed3 Bb4 Rb5 Kc3 Rc5+ Kb2 Be4 Bd2 Nce2 Bc3 Ka6 Kb1 Kb6 Ba8 Kb5 Bc6+
2nbr1n1/3r1Q1Q/qN1B2R1/4RB2/1NBP3B/2QbKQb1/4q3/1k1r1rrb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 d4+ Ke4 b6 f5 e3 h5 d6 a5 g5 c5 d7 a4 g6 h3 b7 c4 b5 h4 b6 c3 g7 c2 Bb5 f3 Qe1 a3 Qc3 h2 Nh3 a2 Nf4 h3 Nd5 f4 Re1 h1B Nb4 h2 Ba3 c1B Bc4 Qf6 d8B Nc6 b8Q Ra7 b7 Bf5 Qa8 Bd6 b8Q Rd7 Qba7 Bc7 Be7 Bd8 Re2 Qe5 Bh4 Qa5 Re1 Qa6 Rg1 Bh7 Rg6 Bd2 Bb2 Bc1 Na3 Bd2 Rf1 a1R Re1 Rd1 Be6 Bc1 Nc4 Bd2 Nb6 Bc1 N4d5 Nce7 Ba3 Nc8 Bd6 Bd2 Qa1 Kd3 e4 Kc2 e5 Bc1 Qc3+ Kb1 Nb4 Bd2 Bg4 Bc1 e6 Bd2 Rg5 Bd3 e7 Bc1 e8Q Bd2 Re2 Be1+ Kf1 f2 Qf7 Nf6 Bh3 Re8 Rg6 Ng8 Bf5 Bc6 Qd5 h1R+ Kg2 f1R Re5 Rfg1+ Kf3 Bg3 Q7b7 Ba4 Qf7 Bc6+ Kg4 f3 Qaa7 Bf2+ Kf4 Bg3+ Ke3 f2 Qba8 Bg2 Qf3 f1Q Qab7 Rh2 Qa7 Bh1 Qac7 Rf2 Qa7 Nh6 g8B Qg2 Qh7 Rff1 Bc4 Ng8 Qab7 Qga2 Qbd5 Qh2 Qdf7 Qe2+
1qb1RB2/k1nQ2Nb/Nq6/1r1R3r/qb2QBr1/1q1n2B1/1r1PBR2/5RK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 a5 b4 c5 g4 Kc7 e5 Kb6 g5 f5 d6 h5 d7 f3 g6 h3 g7 f4 e6 c4 e7 a4 e8R a3 Re1 h2 Re4 a2 Qe2 h4 Qe1 c3 Re7 c2 Nc3 h3 Qe5 Rh5 Bg2 Nf6 g8R Nc6 Nge2 Ne8 Qe4 Ne5 Rf1 h1B Ba3 c1R Kg1 Ka7 Rf7 Rc2 Nd4 Rb8 Nd5 Qb6 d8Q+ Nc7 Qd7 Rb2 Rg5 Be7 Rae1 a1Q Re3 Qd1 Nf5 Nd3 Ng7 Qa4 Rf2 Rh4 Bf1 Rb7 Be2 h2+ Kf1 Rg4 Rf8 Ne8 Nc7 Bc5 Na6 Nc7 Rd5 Rb8 Rg2 f2 Rg1 Be7 Re8 Bd6 Reg3 Bf3 R3g2 h1R Rh2 Qb3 Rg2 Rh5 Rh1 Qa5 Rgh2 Qaa4 b6+ Ka8 b5 Bb4 b7+ Ka7 Qc4 Be4 Rg2 Bh7 Qe4 Bc3 Bf8 Ba5 Rhg1 Bb4 Rh2 Rgh4 Kg2 f1Q+ Kh1 Qb1 Rf1 f3 Kg1 Rg4+ Rg2 Ra8 b8B+ Kb6 Nc5 Ra5 Na6 Kb7 b6 Rb5 Qd8 Ne6 Be5 Nc7 Bg3 Ka8 b7+ Ka7 Rh2 f2+ Kh1 Q1c2 Qd7 Qc5 Kg2 Qb6 b8B+ Ka8 Ba7 Qb8 Be3 Qb6 Bf4 Ka7 Rg1 f1Q+ Kh1 Qh3 Rf1 Qb8 Kg1 Qh4 Rg2 Qf6 Rgf2 Qfb6
B1b1b1BN/2n1Q2N/1bq1B1r1/n3K3/nB1rnRQ1/1q1q1q2/3P3R/1k1N2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 b6 h5 b7 a5 d6 c5 d7 f5+ Kd5 h3 e4 h4 b3 c4 g5 c3 g6 f3 e5 h2 g7 h3 e6 a4 e7 a3 e8B c2 Bc4 f2 Ke6 f1Q Qf3 a2 Bd5 f4 Qg4 Ra6+ Bc6 Qb6 Ne2 Nf6 g8B Qf3 Qg2 Bc5 Qg5 Rh4 Ng1 Ne4 Qe7 Qd3 Nc3 f3 Bb2 c1N Nd1 f2 Bef7 f1Q Bc3+ Ka3 b4 Nb3 b5 Na5 Ke5 Qff3 d8N Rg4 Rb1 a1N Be6 N1b3 Bb4+ Ka2 Nf7 Rh4 Rc1 Rf4 Rc2+ Kb1 Nh8 Bf2 Bcd5 Nbc5 Rc4 Na4 Rd4 Qc6 b6 Qcc2 Rc4 Qcb3 Rd4 Rg4 Bc6 Rg6 Rc4 Ra7 Rd4 Na6 b8N Ra8 b7 Nc7 Nd7 Ra6 Bcd5 Rd6 b8Q Be3 Rc4 Bb6 Nf8 Rd8 Ba8 Rd4 Nh7 Nd5 Ne2 Nc7 Rf1 h1Q Rf2 h2 Ng1 Qhg2 Qb7 h1B Qa7 Qgh3 Rh2 Qh6 Qg5 Bg2 Qg4 Bh3 Qb8 Bd7 Qf8 Be8 Qe7 Qhe3 Rc5 Qdc4 Rd5 Qc6 Rd8 Qed3 Rb8 Bf7 Rf8 Be8 Rf4 Nd5 Qgg5 Qd7 Bef7 Nc7 Qg3 Bf5 Qg4 Qc6 Bc4 Bfd7 Bce6 Bc8
2rBQ2r/1Qr1NK1R/3bnN2/5qQ1/Bq6/1bR1bN2/P1q1nkqr/1Q3N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 h5 f4 b5 g4 b3 g5 h3 d6 b2 d7 h4 Ke6 Kd4 f6 c5 f7 b4 d3 h2 f5 c4 f6 h3 g6 c3 g7 c2 Qf3 b3 Qh5 Qb6+ Kf5 e5 Kg6 e4 d8Q+ Bd6 f8Q e3 f7 e2 Qh6 e1B Nd2 b1Q Qc7 b2 Qb7 Bf2 Qg5 Be6 Qe8 Qb4 f8N Na6 Nh7 Be3 Nf6 Nh6 g8N Nc5 Ne7 Nf5 Qeb5 Ng3 Ngf3+ Kc3 d4 Rac8 d5 Ne2 Q5b6 Kd3 Bg2 Bg8 Nf1 Ne6 Bd2 Qd1 Rc1 b1Q Bc3 Qd2 Bd4 Qdc3 Qb5+ Qcc4 Bb6 Rc7 Ba5 Rc8 Bd8 Rc7 Rg1 h1R Qe8 Rh2 Rh1 N2d4 Qf5+ Ke2 Qe4 Kf2 Qd3 Bg3 d6 Ne2 d7 Bd6 Qb3 Qa1 Qb1 Qe5 Ng1 Qea5 Bc6 Qab5 Nf3 Qe5 Re1 c1R Ba4 Qcb3 Rd1 Rc8 Rd3 R1c7 Rc3 Qc2+ Nf5 N6f4+ Kg7 Bb3 Ne7 Ne6+ Kf7 Qef4 Rg1 Qff5 Rg7 Rg2 Rh7 h2 Qg8 h1Q Qg5 Rc4 Bc7 Rc6 d8Q Rh2 Qe8 Qg2 Bd8 R6c7
bk2r3/1q1n3B/RB1q1Q1R/bKn2Q2/1bNnNb2/rNq5/PB1B4/1n2N3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 c5 Kc4 Kc7 d4 e5 g4 h5 f4 e4 f6 e3 f7 b3 g5 e2 f5 e1B g6 h3 f6 h4 g7 h2 Bb2 h3 Qg4 Nc6 d6+ Kb8 d5 Nd4 d7 Ra3 d6 Ba5 Nd2 b6 Bg2 Bb7 Rc1 Ba8 Ngf3 Qc8 d8N b5+ Kd3 b4 Kc4 Qc6 d7 Qd6 Ne6 Be7 d8B Bf8 Bc3 b2 Ne1 b1N Bb6 b3 Qf5 b2 Be4 Be7 Bb4 Nc3 f8B b1N f7 Nf6 g8N Na4 Bg7 Nd7 Nf6 Re8 Rc3 Bf8 Rg3 Be7 Rg6 Bf8 Rh6 Be7 Rf1 h1Q f8Q h2 Bd3 Qb7 Nfe4 h1Q Q8f6 Qh3 Bc3 Nc2 Kb5 c4 Nd4 Nac5 N4b3 Bf8 Bb2 c3 Rh1 Qhg3 Rg6 Be7 Bh6 Qge5 Be3 Qg3 Rhh6 Nd4+ Kc4 c2 Bf4 Nde6 Kb5 c1B Nc4 Bf8 Bc2 Qc3 Bg5 Bf4 Bd3 Bh2 Bd2 Bf4 Nf2 Qdd5 Qg7 Qg2 Qh3 Qbd5 Bd8 Qdd4 Rf6 Qf3 Bh7 Nb7 Qf5 Bfb4 Qf8 Nbc5 Rfg6 Ng5 Ra6 Nge6 Q8f6 Qd6 Bb6 Qb7 Ne4 Nd4+
5q1Q/RKnbRqn1/1R2b1k1/R1B2nN1/B1r1r2B/4P1Q1/1r1Bn2N/2b3b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 g4 f5+ Ke5 Kf7 b4 c4 d4 a4 b6 a3 d6 h3 Kd5 f3 d7 c3 b5 h2 g5 f4 b7 f2 b6 f3 Bg2 f1N Qb3 a2 Nd2 c2 Ne4 f2 Nf3 h4 Bd2 Na6 Kc6+ Kg6 b8B c1B b7 h3 d5 Nc7 d6 Nf6 Ba7 Nh5 b8R Ne3 Re1 h1B Bc5 f1Q Rb6 Ng7 Nh2 Nef5 Qg3 Rb8 Bf3 Qe7 d8Q Qf7 d7 Rh4 e3 Bd6 Qh8 Bg2 d8B Be6 Be2 Bf3 Bb5 Bg4 Ba4 Bf4 Ra6 Rb2 Ra7 Qf8 Rb1 a1R Bde7 Raa2 Rd1 Rc2 Rb6 Rc4 Kb7 Rb2 Bf6 Nd4 Bfe7 Ne2 Re1 Bd6 Rd1 Q1f7 Rf1 Nd4 Rf5 Ne2 Re5 Bgf5 Bd8 Bd7 Re7 Bfe6 Ra5 Kf5 g6 Bf4 Ng4 h2 Ng5 h1N Nh2 Bd6 Ra7 Rhe4 Ra5 Nh5 g7 Kg6 g8R+ Ng7 Qg2 Nhg3 Qf2 Nf5 Qg3 Q8e8 Rf8 Qg8 Rff7 Qef8 Re8 Qh7 Bf6 Qh5 Rfe7 Qh7 Rea8 Qhg8 R8a7 Qgf7 Qgh3 Bg3 Qg2 Be1 Qg3 Bf2 Ngf3+ Rg4 Bh4 Bg1 Ng5 Rge4
5n1R/r1RK2N1/qNR2bn1/kb6/rqQ1q2n/R1QP1Q1b/1n1Q2b1/2B4B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb6 b4 f5 g4 a5 e4 h5 d6 h3 g5 a4 g6 c4 g7 f3 d7 a3 Ke6 h2 e5 h4 Ra2 h3 Bd3 c3 Qe2 c2 Qd1 f2 Qh5 f1N Nc3 f4 Be4 f3 Nge2 f2 Ng3 Ra4 Qf3 Be7 Nf5 Ng3 Rf1 h1B Nd5+ Kb7 b6 Ka6 b7 h2 b5+ Ka5 b6 Na6 b8R Bf6 b7 Rh7 Kd6 Ne7 g8Q Bg2 e6 h1Q Nb6 Nc7 Ng7 Qf8 d8Q Ng6+ e7 Bch3 Rc8 Nf5+ Kd7 Ne6 e8Q Nfh4 b8R Qb4 Re1 f1B Rc7 Ba6 Qef7 Bc4 Qc3 Bcf1 Bc6 Bb5 Re5 Qe1 Rc5 Qe4 Ra1 a2 Rbc8 Bd4 Qff3 Be5 Qg5 Bf6 Qf7 Ne7 Rh8 Neg6 Rb1 a1Q Rb3 Qa2 Ra3 Qac4 Qd5 Qce2 Qdc4 Qf1 Qf8 Qfe2 Qd6 Qf1 Bb2 c1N Qdd4 Nd3 Bc1 Nb2 d3 Qg1 Qd2 Qf2 Qd4c3 Qg3 Rb7 Qb8 Rc7 Qa7 Kc8 Qa6+ Bb7 Rh6 R5c6 Rh7 Kd7 Qf4 Qff2 Qd4+ Ke8 Ngf8 Rd7 Bg4 Rc8 Qf4 Nh5 Bf1 Bh1 Bgh3 Qf3 Bfg2 Rc6 Qe4 Rb7 Rd7 Ng7 Nfg6 Ra7 Rd6 Re7 Rd7 Rf7 Rb7 Rc7 Ra7 Kd7 Nef8#
6kb/nrbN1nB1/1qQ2RB1/1q1bR3/r5KP/NNNQ3n/q3Q1b1/Q5n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 Kf7 d4 g5 e5 f3 Kg3 c4 b6 c3 d6 a4 d7 f2 b5 a3 d5 c2 b7 a2 d6 Ra4 b6 Rh7 Bb5 f1B Ne2 Nc6 b8Q Bg2 b7 Bg7 Re1 Bh8 Bd3 Na7 Nec3 Qb6 d8Q Be6 d7 Bed5 Bb2 c1B Na3 Nh6 e6+ Kg7 e7 Nf7 Rb1 a1Q e8Q Qa2 Qd6 Bd2 b8N f4+ Kh2 f3 Kg3 f2 Qee2 f1Q Qc6 Bc1 Bg6 Be3 Qdf6+ Kg8 d8N Bc5 Qdd3 Bd6+ Qfe5 Bc7 Nb7 Qf5 Na5 Qd7 Qc5 Qdb5 Nd7 Rg7 Nb3 Rh7 Kf2 g3+ Ke3 g4 Qf6 Qb7 Qcc6 Q7b6+ Qfd4 Bh1 Rf1 g2 Rbe1 g1N Rf6 g3 Ba1 g2 Bb2 Nd6 Kf4 Nf7+ Kg4 Nh3 Nd1 g1N Qed2 Rh6 Rd6 Bhg2 Nf8 Qc4 Ree6 Rh5 Q2e2 Qa5 Nd7 Bde4 Q4c3 Qaa6 Qce1 Qb7 Bg7 Rb5 Nc3 Bd5+ Re4 Rb6 Rf6 Qb5 Qa1 Q7a6 Rf3 Rb7 Rf6 Nf4 Ree6 Qab6 Re5 Nfh3+
3R1rkq/5R2/5n2/PKb2qrR/1b1nB3/qb3R1r/2N1qQQ1/2BNr1BB w - - 0 1 illegal: No possible last move
1Q2Q1Qb/2r1qN1N/1PN4r/n1Q2BBk/Rq2r3/6b1/Rb2nrN1/K1n2b2 w - - 0 1 illegal: No possible last move, all moves rejected
K2r1b2/1q1PQ3/1QQbBn1N/3R2BR/3r1qr1/2rB3b/2q5/bQB2Nkn w - - 0 1 illegal: No possible last move
N5Nk/2n1N2q/NQB3B1/1rb3Q1/r2r1R2/bBB2P2/3b1Rr1/b3Kbbn w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 b4 Kf7 c4 d5 h4 e5 b6 a5 b5 g5 h5 Kg7 h6+ Kh7 c6 a4 f3 g3 c5 g2 b7 g4 b6 e3 c7 e2 c6 e4 Nd2 a3 Nh3 g1R Ra2 g3 Nf4 d4 Nd5 g2 Ne7 d3 Nc4 Na6 b8N Qd7 b7 Nf6 Qd2 Ng4 Nb6 Nf2 Ng8 Bc5 Rh4 Nh1 Rf4 Qh3 Rc2 a2 Bb2 a1B Bc3 Bf5 c8B Nc7 Ra2 Ra4 Na6 Qh2 b8Q Bh3 Bb7 Ba3 Qa7 Bc5 Ne7 Rb8 Na8 Ba3 Qb6 Bc5 Rf6 Kh8 h7 Ba3 Qg5 Bc5 Kd2 e1B+ Kd1 e3 Ng8 d2 Bd3 Ba3 Bg6 Bf2+ Ke2 d1R Rf4+ Rdd4 Rc2 Rb1 Ra2 g1B Rc2 Ne6 c7 Rb5 c8B Nc7 Be6 Rd8 Rd2 Bf1+ Kd1 Rd7 Bc6 Rg7 Bb3 e2+ Kc2 e1B Kd1 Rdb4 Rc2 Bc5 Rf2 Bg2 Ke2 Bd2 Kd1 Rd4 Ke2 Be3 Ke1 Bf1 Qg2 Bd6 Bd3 Bdc5 Bf5 Rg5 Bg6 Kg7 Qg4 Qh4 Qf5 Rg2 Qg5 B3b2 h8N Bba3 Bh5+ Kh7 Ng6 Qh2 N6e7 Kh8 Bhe8 Qh7 Bg6 Bd2+
2bnb1br/b2r3k/rr4q1/5NQB/3PR1Nn/3B3Q/bB2BR2/NN2K1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 e4 c5 b4 f5 g4 Kf7 b6 Kg6 d6 h5 e5 f3 b7 a4 g5 c4 d7 h3 e6 a3 b5 f4 e7 h2 e8B+ Kh7 b6 a2 Qd2 h4 Kf2 c3 Qe1 h3 Bf7 c2 Nd2 Ne7 Ne2 Nbc6 b8N Nf5 b7 Qe8 d8Q Bc5 Nb1 Ra6 Nd7 Ba7 b8N Rb6 Qc3 Nh4 Bh5 Qg6 Bb2 c1B Ne5 Be3+ Ke1 Bg1 Qf6 Rd8 Nc1 Rd7 Nb3 Nd8 Nbc6 f2+ Ke2 Qg7 Ne7 Qg6 Ng4 f3+ Kd1 Rc6 Be2 f1B Kd2 f2 Nf5 Rb6 Qg3 Bg2 Kd1 f1B Ke1 Bd5 Qc3 Qg7 Qe7 Bg8 g6+ Kh8 Bd3 Qf6 g7+ Kh7 Qe3 Qg6 Qg5 Bg2 Be2 B2d5 Qce3 Bdf7 Bd3 Be8 Qg3 Be3 Rf1 h1B Rf2 h2 Qh3 Ba8 Re2 Bg1 Rf2 h1R Be2 Bad5 Bd3 Bge6 g8B+ Kh8 Bh7 Bg8 Be2 Rh2 N1d2 Bde6 Rd1 a1R Nb1 Ra4 Na1 Ba2 Rd3 Raa6 Re3 Rh1 Re4 Bgd5 Bg8 Rh2 Bf7 Kh7 Be6 Bdb3 B6c4 Rh1 Bb5 Bg8 Bbd3 Kh8 Qg3 Nf3+ Kd1 Qg7 Bg6 Rh7 Bf7 Nh4 Bh5 Qg6 Qh3 Rh6 Ng3 Kg7 Ke1 Rh8 Nf5+ Kh7
1b1Nn1bN/B3Q1BK/1NB5/nP5n/3B1r1R/1Rn4r/3rQn1k/nrN4q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 a5 g4 c5 b4 h3 b6 f5+ Kd3 f3 e4 a4 b5 h2 b7 c4+ Ke3 h4 Kf4 h3 g5 f2 g6 a3 g7 a2 Nc3 Nf6 Kg5 f4 Kg6 f3 g8N Be6 Bg2 f1R Nh6 f2 Be3 Nc6 Rb1 a1N Nge2 Ra2 Rb3 Qa8 Na4 c3 Nb6 c2 Qd2 c1N b8B+ Ke7 e5 Na5 Qb2 Bg8 d6+ Ke6 d7 Bd6 Ba7 Bb8 d8B Qb7 Qa3 Rd2 Nf7 Na2 Qb4 Rh5 Nh8 Rb1 Nc1 f1R Qc4+ Qd5 Qe2 Nc3 Bh6 Rf3 Bg7 Rh4 Be7 Rg4+ Kh6 Kf5 e6 Kf4 Bc5 Kg3 e7 Rgf4 e8Q Qb7 Qd8 Ne8 d5 Re3 d6 Red3 Rd1 h1N d7 h2 Bcd4 Nf2 Qde7 h1N d8N Qa8 Bf3 Kh3 Bd5 Ng3 Kg6 Nh5 Rh1+ Kg3 Rh4 Qb7 Bh1 Qg2 Kh6 Qh3 Bf3 Qh1 Bc6 Rdf3 Kg6 Kg2 Kh6 Kg1 Kg6 Rh3 Kh6 Kh2 Kg6 Bf7+ Kh7 Bg8+
BbN2N2/b2B3n/3B1qQ1/Q1q1q1R1/1Rn1r1PK/Rr2np2/1Br1bR2/1k6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 b6 a5 e5 c5 d6 f5 b5 h5 e6 f3 e7 c4 e8B c3 d7 f4 d3 c2 b7 h3 b6 h2 Qe2 h4 Nh3 a4 Qd1 a3 Bg6 a2 Bh7 Ra3 Be4 Bc5 Nc3 Rb3 Nd5 Nc6 b8B Na5 b7 Nf6 Ne7 Kc3+ d4 Nh7 Bd6 Re8 b8R Ba6 Ba8 Nc4 Nc8 Qf6 d8R Re4 Ng5 h3 Rb4 Ba7 Rf8 Qe5 Ba3 c1R Ne6 Rc2+ Qe2 Bb8 d5 Qf6 Rg8 Qe5 Rg1 h1Q Rg2 h2 Nf8 Bb5 Rg5 Qg1+ Ke1 h1N Rf2 Ng3 Bc1 Nf5 Ba3 Rd4 Qe4 Nfe3 Qg6 Re4 Bc1 Nb6 Ba3 Be2 Bb2+ Kd3 Bc5 Nbc4 d6 Ba7 d7 Bb8 Bd6 Ba7 Rb1 a1B d8Q Bb8 Qa5 Ba7 Ba3 B1d4 Rc1 Bb8 Ra1 Bc5 Bc1 Bca7 Ra3 Kc3 Bd2+ Kb2 Bc3+ Kb1 Bb2 Qh2 Bg2 Qh6 Bc6 Qhg7 Bd7 Qc5 Rf1 Qge5 Kf2+ Bd1+ Kg1 f2+ Kh2 Qg7 Kh3 Qge5 Bc1 Be2 Kh4 Rd4 Ba8 Re4 Rg1 f1Q Bb2 f3 Rg2 Qf6 Rf2 Qe1 Nb6 Qec3 Nc8 Q3e5
2Rb1Qqr/1nQr1R2/3Qq3/r1Bn2RP/2p1k3/6RN/3qB1b1/Q1N1nb1K w - - 0 1 illegal: No possible last move, all moves rejected
2N2Nnb/2bNB2p/4Bq1r/1r1R1n1B/1q4Qq/PQR5/2b3B1/1Nk1K1rn w - - 0 1 illegal: No possible last move
Q7/2Np2BK/R1n4r/2r1n3/BBr1Bqb1/1QNRPnN1/3bNb1k/2r4r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 a5 h4 g5 b4 a4 h6 f5+ Kh5 a3 Kg6 f3 h7 f4 b6 f2 b5 d3 c5 f3 c6 g4 b7 a2 b6 d2 h5 Kf4 e3+ Kg3 c7 Nh6 Nc3 Bb4 Bb5 f1N Qb3 d1R Ba3 f2 Ba4 Nc6 b8N Nd2 b7 f1R Na6 Rf4 b8Q Nf7 h6 Bb7 c8B Qf8 Nc7 Ra5 Qa8 Rc1 Nge2+ Kg2 Rf1 g3 Rd1 Nf3 Rd3 Ba6 Bb7 Rc4 Qd1 Rac5 Qb3 Ba5 Bb4 Qd6+ Kg7 Qf4 Kg6 Kh3 Kg7 g2 Ng3 g1B Kg6 Nb8 Be4 Bf2 Kg7 Kh2 Kg6 Rd8 h8B Nc6 Bg7 Rh8 h7 N7e5+ Kh5 Re8 h8N Re6 Ng6 Bb7 Nf8 Rf6 Nfe6 Ba6 Nd4 Bb5 Rb1 a1R Nde2 Rh1 Rbd1 Rc1 Rd6 Ncd4 Ra6 Ndc6 Rd3 Rg6 Ba3 Rd6 N3d5 Bd2 Ndc3 Rcd4 Bb4 Bc4 Qf8 Be6 Qh8 Rdc4 Qa8 Ng5 Kh6 Ngf3+ Kh7 Bg4 Bg6 Re6 Be4 Rh6+
NR1b1nQq/k7/3Qb1N1/1qn5/PB1pK2b/2BRQ2B/2q2b1B/rrb3Q1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 d5 Ke3 Kd7 h4 Kc6 f4 e5 a4 b5 c4 Kb7 c6+ Ka7 f6 g5 f5 g3 f7 g2 c7 e4 f6 b3 h5 b4 c5 g4 h6 g3 h7 b2 c6 b3 Ra3 Be6 c8Q Ne7 c7 Na6 Ne2 Nc5 Nbc3 b1Q Nf4 b2 Ng6 g1B+ Kf4 e3 Bh3 Rg8 h8B Bf2 Qg1 g2 Bg7 e2 Nb5+ Kb6 Bh8 e1B Rd3 Bh6+ Ke5 Ra5 f8Q Qc2 f7 b1Q Bf4 Bh4 Qe8 Bef2 Bh2 Bc1 f8B Ra7 Bf6 Rb7 Qcd7 Ka6 c8Q d4 Nc7+ Ka7 Bg5 Qb5 Qd6 Be1 Be3 Ba5 Bd2 Rh8 Bc3 Rb8 Qe1 g1B Na8 Bgf2 Qg1 Rh7 Qcc6 Qc8 Qf3 Bd8 Qe3 Rb7 Qf7 Rb6 Qg8 Rh6 Kf4 Rb8 Ne5 Ng6+ Kf3 Rh5 Be7 Nf8 Ng6 Nb7 Ke4 Rg5 Qd1 Rg1 Qg4 Rf1 Qg1 Nc5+ Kf4 Qc7 Kf3 Qb4 Qgg3 Bb2 Qd7 Na6 Bd6 Ra1 Rb1 Bc1 Qg1 Rb6 Qc6 Qg7 Ke4 Qa5 Ba3 Qh8 Qd6 Nc5+ Kf4 Rc6 Rb8 Rb6 Kf3 Rb2 Bab4 Qb5 Kf4 Rbb1 Kf3 Nb3 Ke4 Nc5+
rR2b2R/4Q1n1/1QN1qB2/2qn2Rp/P1knrnR1/K6Q/2q3Qb/1N1B1n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 h5 g4 e5 a4 b5 f4 e4 g5 e3 f6 c4+ Ka2 c3 f5 e2 f7 e1Q g6 h3 g7 b3+ Ka3 b2 f6 h2 Bd3 c2 Ne2 Qb6 Bh7 Ne7 g8Q Bd7 Rg1 h1N Qg2 Ng3 Qd3 Nf1 Bg5 c1N Qdh3 Be8 Bc2 Nbc6 Bd1 Nf5 Ra2 Bh6 f8R Ng7 f7 Nd3 Bf6 Bf4 Ra1 Rh7 Rh8 Bh2 f8R Nf4 Ra2 Rh6 Ra1 Rg6 Ra2 Rg4 Rfg8 Kd7 d6 Ke6 d7 Qea5 d8Q b4+ Kb3 Qba6 Qb6 Qc5 d5+ Kd6 Nd4 Rh4 Na3 b1N Rb2 Nc3 Nb1 Qe2 Bd8 Ke5 d6 Ncd5 d7 Qg4 Bg5 Qe6 d8Q Rg4 Qe7 Rh4 Nb5 Nd4+ Ka2 Rg4 Na7 Rh4 Rb3 Rg4 Rg3 Rh4 Rg4 b3+ Ka1 b2+ Ka2 Nc2 Rf8 Kd4 Bf6+ Kc4 Nc6 Nd4 Rg5 Qb5 Ka3 Qa5 Nc3 b1Q Rg4 Qc2 Nb1 Nfe2 Rg5 Re4 Rfg8 Nef4 Rf8 Bf7 Rb8 Bg6 Qd2 Qa7 R1g4 Be8 Qf2 Qa5 Qfg2 Qc5+
3b1b1b/kq3R1r/r4B2/1nRRp1n1/B2R1QQ1/2QKP3/1qQ1Nr2/3Nb1b1 w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 f5 h3 fxg4 Na3 g3 Nb1 g2 Nc3 g5 Nb1 g4 Ra2 g3 Ra1 Bg4 hxg4 Qd5 Qc2 Qd4 Qd1 Qd8 d4 Kd7 Kd2 Kc8 b4 Kb7 f4 c5 f5 h5 d5 a5 g5 h4 b6 a4 d6 h3 d7 a3 g6 h2 f6 a2 b5 c3+ Kc2 c4 g7 Nc6 f7 Qc7 d8R Ra6 Bb2 Nf6 g8Q Na7 Rd5 Rh7 Qg4 Ne4 e3 Ng5 Ne2 g1B Bh3 g2 Qd3 Bf2 Rc1 Kb8 b7 g1B Qdd4 h1R Qc5 Bg7 f8R+ Qc8 Bg2 Bf6 Rf7 Be1 Rcd1 e6 R1d4 Bd8 Qb4 Qc7 Rc5 R1h2 Bc6 Rf2 Be8 Qd7 Rcd5 Kc7 b6+ Kc6 b8Q Nb5 b7 Kb6 Qc7+ Ka7 Nd2 Qc6 Rc1 a1B Nb1 Qb6 Rcd1 Qc6 Rc5 Qd7 Rdd5 Qc8 R1d4 Qa8 Kc1 c2 Nbc3 Qc8 Nd1 Qd7 Rd3 Qc8 Bf6 Bd4 Be7 Bh8 R3d4 e5 Bf6 Qa8 Qc3 Qb8 Kb2 c1B+ Kc2 Ba3 Qcc8 Qc7 Qcf5 Qc8 Qff4 Qb8 Qa1 c3 Kd3 c2 Qc3 c1Q Bd7 Nd6 Ba4 Qb2 Qc2 Nb5 Qc3 Kb6 Qc2 Qc7 b8Q+ Qb7 Qbc8 Ka7 Qc7 Bab4 Qa5 Ba3 Qac3 Bb4 Rcc7 Bbe7 Rcc5 Bf8
1B2brb1/n1RR4/K3NQN1/3PB1bk/3pB1q1/2Nr1r2/Q2N2nb/q1B2b2 w - - 0 1 illegal: No proof kernel
R6R/3qNRb1/r1r4r/1kP2Bnn/1r1Q2bB/2QKBb2/1rp2B1R/1Nq5 w - - 0 1 illegal: No proof kernel
1q6/2b1Nn1n/r1N1Q1q1/2P2p2/R1NR1N2/1k1b1rn1/2r1QBn1/2KnR1RB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 Ke6 c4 a5 h4 d5 b4 f5 c5 g5 e5 g4 h6 d3 b6 d4 h5 Kd5 b5 Kc4 e6 a4 h7 a3 e7 a2 e8Q g3 b7 f3 b6 f2 h6 g2 Ne2 g1Q Ba3 Nd7 b8N Qg6 b7 Ngf6 Bb4 Bd6 Nc6 Ne5 b8R Nf7 Rg1 Ra3 Ra8 Bc7 Bg2 Ba6 Bh1 Qb8 Qc8 Re8 h8R Re7 h7 f1N+ Kc1 d2+ Kc2 Rd7 Rd8 Rf3 Nf4 Ng3 Qe2+ d3+ Kb2 Bb5 Bc3 Rd5 Bd4 Rd6 Bf2 d1R Na7 Rc1 Na3+ Kb4 Qd7 d2 Qde6 Ka4 Rb1 a1N Rd7 Rcc3 Rbe1 d1N+ Kb1 Nc2 Kc1 Bd3 Nc4 Rb6 Nc6+ Kb3 Ra4 Ra6 Rd4 Nce3+ Kd2 Ng2 h8N Qh5 Nhg6 Nh7 Nge7 Qg6 Qc8 Rc1 Qd7 Ra1 Qde6 Ra2+ Kc1 Rc2+
1Nq4b/n2rRr1b/2r3qR/p3Bn1Q/PQ1r4/B1rk3K/QQ5N/n2N3N w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Na3 h4 Nb1 h3 Bg2 hxg2 f4 Ke7 Kf2 Ke6 Kg3 Kf5 a4 Ke4 c4 b5 h4 g5 f5 d5 f6 a5 c6 b4 h5 d4 c7 d3 h6 d2 e6 b3 e7 b2 e8Q+ Be6 c8Q Kd4 e4 Ba3 h7 Bb4 f7 Bf5 f8N Be7 c5 Kd3 c6 Ra7 c7 Nh6 e5 Bf6 e6 Nc6 Qb8 Qc8 Nc3 b1N e7 Na3 Qh5 Nc2 Nd7 Rf8 h8B Bh7 e8N Rf7 Qe1 d1R Nf3 g1R+ Kh2 g3+ Kh3 g2 Ba3 Rd2 Qb2 Nf5 Nd6 Bd4 Rb1 Na1 Nde4 Rd1 Ng3 g4+ Kh2 Rf1 Be5 g1R Nb8 Rb7 Qef2 Na7 Rc1 Rd2 Nd1 Rd7 Rc6 Rb6 Re6 Rc6 Re7 Rdc2 Qa2 R2c3 Qg2 Rf2 Qb2 Re1 Qb4 Rff1 Qgb2 Re4 Kg2 Rf4 Rh4 Re4 Nh1 g3 Kh3 g2 Nh2 g1Q Qa2 Qg6 Qbb2 Qcg8 c8Q Rf2 Qc7 Qc8 Qcb6 Rff4 Q6b4 Rf1 Bc7 Bh8 Be5 Red4 Qf3+ Ne3 Rh6 Rf2 Qg4 Rf7 Qh5 Nf5
1N3N2/2N3b1/n2Qb2P/3RBnRK/B4n2/Rpn5/qbNrn3/qk1rR2Q w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 f4 Kd6 h4 Kc5 a4 Kd4 d6 e5 d3 b5 d7 c5 a5 g5 h5 b3 f6 b4 a6 c4 f5 b2 f7 b3 a7 c3 f6 g3 Kf3 g2 Kg4 c2 h6 e4 Na3 Kc3 d4 b1N d5 e3 d6 e2 Be3 Kb2 Kh5 e1Q Ne2 g1N Bd4+ Nc3 Be5 c1B Nd4 g4 Nc6 g3 Nc2 g2 Bb5 Qa5 d8R Bg7 f8R Ne2 d7 g1N f7 Na6 Ba4 Ne7 Rg8 Nf5 f8N Nh3 Ra3 Kb1 Nb8 Qf1 Qd5 Bb2 Rg1 Qd1 Qh1 Rh7 Rg5 Qc1 Re8 Qe1 d8Q Be6 Qd6 Qc1 Nbd7 Rd8 a8N Qe1 Nc7 Nhf4+ Kg4 Qf1 Nb8 Rd7 Qe7 Rd2 Qd6 Bf6 Rd8 Rd7 R8g7 Qc1 Re7 Bg7 Ree8 Nh3 Kh5 Rd1 Qe7 R7d2 Rd5 Nhf4+ Kg4 Ba1 Qd6 Qb2 Re7 Qa2 Re8 Bb2 Re7 Ng2 Kh5 Bg8 Bb5 Qa1 Bg3 Ned4 Ra2 Qa3 Re1 Nde2 Be5 Be6 Bc6 Qb4 Raa5 Qba4 Be8 Q4a2 Ra3 Nb4 Bd7 Na6 Ba4 Ngf4+
kq2BK2/B4N1N/1nRqqn1p/R4b2/QBrb4/4r1P1/1r2R1rQ/B3R1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 f3 e4 c4 d4 c3 b4 h3 d6 h2 d5 f2 e5 f6 b6 c2 b7 h6 Kg6 f5 Kf7 f4 b5 a4 b6 a3 Nd2 a2 Ndf3 Qh4 e6+ Kd8 d7 Bd6 Ba3 c1R Qa4 Qg3 Bb4 Be5 Kf8 Rc4 Ng5 f3 Nh7 Bd4 Nh3 Qe5 Rc1 a1R N3g5 Rb1 Be2 Qg3 Rhe1 f1Q Rc3 f2 Bh5 h1Q Be8 Qhh2 Re2 Nc6 b8Q Rb2 b7 Ne5 Qd6 Qc1 b8B Qce3 Re1 Ra5 Ba7 Rac5 Rcc1 Rc3 Ra1 Nc4 Qf4 Qe5 e7+ Kc7 d8R Kb7 d6 f1R d7 Rg1 Nf7 Qe6 Qh4 Qb8 g3 Ka8 Ra3 Qd2 Qh2 Re3 Re2 Ra5 Rc3 Nb6 Rc6 Rf5 Re1 Rf2 Re2 Ba6 Rdc8 Bc4 d8B Bd3 Bc7 Bg6 Be5 Bf5 Rd8 Qd3 Rd5 Rfg2 Ra5 Qa3 Be1 Qad6 Bb4 Rc2 Bf6 Rc4 Bg7 Bc5 Ba1 Bd4 Re1 Nf6+ Kg7 Qed7 Bbc3 Re4 Bd2 Rf8 Bb4 Bg4 Ne5 Ng8 Bg6 Rff2 Bh5 Qf5 e8R Rb2 Re7 Qfc8 Be8 Nf6 Nf7 Bf5 Ree5 Ree2 Re3 Qce6 Re4 Rec2 Ree5 R2c3 R5e2 Qdc7 Kf8 Re3 Rd1 Qce5 Rde1 Q5d6+
3kq3/B3nQ2/2BP1Nb1/5B2/b2bn2p/1N2RNNq/r1B2RK1/Qnn3nr w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 g4 f5 d4 c5 b4 a5 e4 a4 e5 f3 e6 h3 b6 f4 d6 h2 e7 a3 d7+ Kf7 e8B+ Ke7 d5 c4 b7 c3 b5 h4 b6 a2 g5 c2 g6 Bg7 Ne2 Bd4+ Be3 c1N g7 Nc6 b8N Nf6 b7 Rf8 Bh3 Ne4+ Kf1 f2 g8B Ra4 Kg2 f1N Bf5 Nfd2 Na6 Nf3 b8N Ng1 Nd2 Ra5 Beg6 Qe8 Nf3 Kd8 Nc5 Ne7 Nb3 Rf6 Rb1 a1Q Ng3 Qa4 Rb2 Qc4 Qe1 Ra2 Rf2 Bb7 Qc3 Bc6 Qa1 Ba4 B6h7 Nge2 Re1 Ng1 Bd2 Rg6 Re3 Qe2 Bb4 Re6 Bc5 h1B+ Kh2 Bg2 Ba7 Bf1 Bhg6 Qc4 B8h7 Bd3 Kg2 Rb6 Nc5 Rb1 Nb3 Qg8 Be8 Qc8 Na6 Qg4 Nc7 Qa8 Bf7 Qb8 Ne8 Qe5 B7e6 Qh8 Nf6 Qe8 Bf7 Ng5 Nbd2 Ng6 Nb3 N1h3 B5e6 Ne2 Nc1 Ke7 Nb3 Rh1 Rf1 Nc1+ Nfd2 Ng1 Bfg8 Nf8 Be4 Ng6 Bh7 f3+ Kf2 Bb1 d8Q+ Kf8 Qc8 Ke7 Qc4 Kd8 d6 Ne7 Bc6 Bd3 Bc8 Bb1 Qf7 Bc2 Rd1 Bb1 Kf1 f2 Kg2 f1N Bhe4 Bc2 Nf3 Nd2 Rf1 Nb1 Rf2 Bd3 Bed5 Bh7 Be4 Bg6 Bc2 Ne4 Bf5 Qh3+
Q3RnNR/1n2Q1B1/1bKPp1k1/1bN2n2/2B2q2/1r2Q1N1/1qn3Nb/n1Qr4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 c5 g4 a5 d4 h5 f4 h3 b4 c4 b6 c3 b7 c2 f5 h4 g5 a4 b5 e6 g6+ Kf6 b6 a3 d6 h2 d5 a2 Kd4 e3 Kc5 e2 g7 e1N Bc4 h3 Ne2 Ne7 d7 Nbc6 b8N Na5 Nf4 Ba6 b7 Ng6+ d6 Be7 Qf3 Qf8 Nd2 Bd8 g8N+ Kf7 Rb1 a1N Bb2 c1B f6 Nec2 Qe3 Qh6 Ng2 Nf8 Be5 Qf4 Ne4 Kg6 f7 Bb2 Bg7 Be5 Ng3 Rh5 Nc6 Rb8 Nb4 Bc7 d8Q Rh7 Rhc1 h1Q Qe7 h2 Nd3 Qg1 Rb4 Qgf2 Rh1 Qd2 Rb3 Qc1 Rb6 Qb2 Rc6 Bd8 Rc8 Rh3 Qc1 Ra8 b8Q Nb7+ Kc6 Bb6 Re8 Ra7 Rd1 h1N Nc5 Ra8 Qa7 Rb8 Nh5 Ng3 Rh1 Nf5 Ng3 Rh5 Rh4 Rg5 Rh8 Rh5 Qa8 Rh1 Qh4 Rd1 Qh1 Bd4 Qe1 Bg1 Qf2 Nh7 f8Q Bh2 Qe7 Nf8 Qe1 Bc7 Nd3 Nd8+ Kc5 Rb3 Qee3 Nb7+ Kc6 Bb6 Nc5 Bb5+
2b2NB1/r2B4/brp1Q1B1/1q2B3/1N2N2K/2Qb1Rb1/qn2PRN1/n1bkr3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 b4 Kd6 g4 Kd5 d4 Ke4 b6 a5 d5 f5 b5 h5 d6 a4 d7 f3 Kg3 c3 b7 c6 g6 a3 b6 h4+ Kh3 f4 g7 f2 g5 c2 g6 a2 Qd2 f3 Qe1 Nf6 g8B Bd6 g7 Na6 b8N Nh5 b7 Qg5 Rh2 Qb5 Kg4 h3 Rh1 h2 Bf7 Ra7 g8B Nf4 Qc3 Nd3 Bb2 Ke3 Bg6 c1B Nd2 Bg3 Ne4 Nb4 Nh3 Nc2 Nf4 Rh7 Rb1 a1Q Bh3 f1B Na6 f2 b8Q Qa2 Nb4 Na1 Qbe5 Ba6 d8N Rhb7 Nde6 Rb6 Nf8 Bg2 Qe6 f1R Rg1 Re1 Rf1 h1B Rf2 Bf1 Qg7 Bfg2 Be5 Bf3+ Kg5 Bg4 Rb3 Bhf3 Nc5 Kd2 Ng2 Nb2 Ne4+ Kd1+ Re3 Bh2 Kh4 Bf5 Qgf6 B3g4 Ref3 Bhf4 Qg5 Bh2 Qe3 Bf4 Qc3 Bh2 Nf6 Bd3 Ne4 Bhf4 Qec4 Bgc8 Bd7 Bh2 Qe6 Bg3+
R3n2B/7q/pn4Q1/1Rq1K1Bn/PQ1nb1k1/Q2Qnr2/N1Rb3R/3q1Nr1 w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Na3 h4 Nb1 h3 Bg2 hxg2 Kd2 Kf7 Kd3 Ke6 Kd4 Kf5 c4 d5 h4 g5 a4 b5 f4 g3 e4+ Ke6 c6 g4 c5 b4 c7 b3 h5 b2 c6 a6 h6 Nd7 h7 Ngf6 Nd2 b1Q Rh2 Bh6 Ne2 g1N Nf1 g2 Nc3 g3 Na2 Bb7 c8Q Rf8 h8B Nh3 c7 g1N Qd3 g2 Qb8 Ne8 c8R Nb6 Rc2 Qc7 Be3 Qd1 Rb1 Qh7 Rb5 Rg8 Bc1 Rg3 Bd2 Rf3 Be3 Ra7 Bd2 Ba8 Bc1 Rg7 f5+ Ke7 e6 Kf6 e7 Nf4 e5+ Kg5 f6 Kg4 e6 Nh5 f7 Bd2 f8R Ne2+ Ke5 g1Q Qd6 d4 Qb4 Be4 Qda3 Be1 Bg5 d3 Rg8 d2 Qd3 Nef6 e8Q Nd4 Qg6 Ne8 e7 Qe3 Qda3 Qc3 Qgd6 Qc5+ Qd5 Qa1 Rf8 d1N Rg8 Ne3 Rf8 Nef6 e8Q Bd2 Qg6 Qd1 Ra8 Ne8 Qd3 Rgf7 Qda3 Rg3 Qd6 Rg1 Qg6 Qc7+ Qdd6 Rf3 Qd3 Qc8 Qba3 Qc3 Qdb4 Qc5+
1q1RN3/1r1n1B2/3QR2R/8/1bqQ1r1q/nNRK3p/bN1P1B1k/n2Nb2n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 Kd6 e4 Ke5 Ke2 c5 d6 a5 d7 h5 g5 f5 b6 c4 g6 f3+ Ke3 f2 b7 f4+ Ke2 c3 g7 f3+ Ke3 a4 b5 c2 b6 h3 Na3 h4 Rh2 Nh6 g8N Nf5+ Kd3 Kf4 e5 Kg3 e6 Bd6 e7 Ne3 e8R Rh7 Nc4 a3 Re5 a2 Nf6 Ra4 Nb2 Rf4 Ne8 Nc4 Re6 Na3 Bg2 Qc7 d8R Nd7 b8N f1Q+ Qe2 f2 b7 Rg7 Nc6 Qb8 Bd5 Qe1 Na5 f1Q Nb3 Bb4 Rh1 h2 Nh3 Be7 Rb1 a1N Nf2 h3 Nfd1 Rh7 Rh6 Bh4 Bf7 Qg2 Qe7 Qc6 Qe5 Qcc7 Rf1 h1N Qd4 Kh2 Rf3 Qe7 Re3 Be1 Re5 Qh4 Ree6 Qa7 b8Q Qc4+ Ke3 Rg7 Qb4 Qb8 Qbd6 Qa4 Ke2 Bb7 Kd3 Bd5 Nc4 Qab4 Bb2 c1B Bc3 Bb2 Rc1 Qa4 Ba5 Bc3 Bb6 Bb4 Rc3 Rh7 Ncb2 Qc6 Nc5 Ba2 Nb3 Nf6 Bg8 Rb7 Bf7 Nd7 Q4d5 Nf8 Bf2 Nd7 Qd4 Qc4+
Nk4nB/2b1b3/RK4QN/R6q/2bBN3/rB2pb2/P1nr2qQ/B3q1rN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 f4 b5 d4 c5 g4 Kc7 d6+ Kb7 g5 h5 d5 b3 g6 b4 f6 b2 g7 h3 f5 h4 f7 c4 d7 b3 d6 e4 Kd4 h2 Kc5 h3 f6 e3 Qd3 c3 Nd2 b1R Qg6 b2 Ne4 c2 Bc4 Rh4 Bb3 Ra6 Ne2 Rh6 N2g3 Be7 f8Q Ra3 f7 Qe8 d8B Bd7 Bb6 Nf6 Qh8 Nc6 f8B Nd4 g8N Be6 Bg7 Bc4 Qhh7 Qf7 Bh8 Kb8 Rf1 h1B Rf5 Bd8 d7 Bf3 Nh1 Bc7 d8N h2 Ne6 Rh4 Bd2 c1B Nh6 Ng8 Bc3 Nc2 Kc6 Rh5 Ra5 Rd5 Bbd4 Qf5 Ra6 Qh5 Ra5 Bd2 Ra6 Rc1 Rb1 Rg1 Rd1 b1Q Ba1 Bb4 Rf1 Bf4 Kb6 Qe1 Nc7 Be7 Na8 Bg3 Rf2 Be5 Rg2 Bf4 Rg5 Bg3 Nhf2 h1Q Rf5 Rd8 Rfa5 Qg2 Nh1 Be5 Qg3 Bf4 Qh2 Rd7 Qg6 Rd8 Bc5 Rd2 Bcd4 Bc7+
3B2q1/r1R3q1/n1QB3N/K4b2/RQ1n4/P3p2R/BR1rnBNn/krb3b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 d4 Kf6 Kd2 b5 g4 e5 a3 c5 d6 h5 d5 h3 d7 h2 d6 c4 Nc3 h4 Qa4 h3 Ra2 e4 Nd1 b3 Kc3 b2 Kb4 b1R+ Rb2 c3 Nf2 c2 Nf3 Ne7 Ne1 Ra7 Be3 c1B Ng2 Bg7 Qa6 Qg8 Ka5 b4 d8B b3 Bc4 Be6 d7 Rh7 Rd1 h1N Rd3 h2 Beb6 Bf8 Rh3 Ng3 Bdc7 h1Q d8B Bd7 Bd6 Nf1 Bd5 Qg1 g5+ Kg7 g6 Kf6 g7 Nh2 Bc4 Bc8 Bf7 Rd7 Qb5 Na6 Qc6 Ra7 Be6 Rh4 Bbc5 Rg4 Bc4 Rg3 Bcb6 Rd3 Be3 Be6 Beb6 Rd2 Ng4+ Kf7 f6 Nf5 Be3 Nd4 Nh6+ Kg6 f7 Bf5 Bf2 e3 Rc2 b2 Ba2 Be7 f8R Bh4 Re8 Bg3 Re7 Kf6 Rc4 Bh4 Rc7+ Ke6 Qd7+ Kd5 Ra4+ Ke4 Qc6+ Kd3 Bc5 Kc2 Bd6+ Qc4 g8R Kc3 Ne1 Qg7 Ng2 Kc2 Re8 Kc3 Re5 Bg3 Rb5 Bh4 Be1 Bf2 Rb6 Bg1 Bf2 Ra1 Rbb4 b1N Rbb7 Kc2 Rb6 Nc3 Rb3 Bc8 f5 Nce2 f6 Bf5 f7 Rb1 Rb8 Kc3 f8Q Kc2 Bc5 Qb3 Bd6+ Kb2 Qe7 Ka1 Qee4 Qbf7 Rb2 Qfg8 Qf4 Ndf3 Qb4 Nfd4
NR2R1Rq/N3b3/3r2q1/2n1k3/b2R1nP1/2pb1rQ1/2B2Qrb/B1KqN2N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 g4 a5 e4 f5 b4 c5 b6 h5 b7 h3 b5 h4 b6 h2 Nf3 h3 Ng5 f3 Ba3 f4 Qc2 f2 Nf3 a4 Ne1 f3 Bd3 f1R Nc3 f2 Ne2 Nf6 Bb2 a3 Kc1 c4 Ng3 Na6 b8R a2 b7 Rh6 Rb1 Qb6 Ba1 Bd7 Rb4 Ba4 e5+ Kc7 e6 Kd6 e7 Nc5 e8R Nh5 Qe2 Nf4 Bc2 Be7 Rg8 Qb5 Rbe8 Rc8 b8Q+ Rc7 Rg1 h1Q Qf3 Qg2 Nh1 h2 Qb6+ Qc6 Qg3 Qf3 Qa7 Qe2 Rbb8 Rb7 Rg2 Rb2 Qb6 Kd7 d6 Ke6 d5+ Ke5 d7 Rd6 Qa7 Qb6 d8N Qa6 Ne6 Qb6 Qf3 Qc6 Nc7 Qb6 Ng3 h1Q Na8 Qh8 Nh1 Qc6 Ref8 Qe8 Qg3 Qg6 Rh2 Rg1 Rh3 f1B Rfe8 Rg2 Rh6 Rf2 Qb6 Rf3 Rh2 Qee4 Rd2 Bd3 Qa7 Qe2 Rd1 Rb6 d6 Ra6 d7 Rd6 d8N Be4 Rd4 Bd3 Bb3 Rd2 Bc3 a1B Bc2 Bb2+ Kb1 Ba3 Ba1 c3 Qb6 Bb4 Kc1 Ba5 Qb2 Bc7 Qa2 Qee4 Qb2 Rg2 Qb6 Qe2 Nc6+ Ke6 Na7 Ke5 Qb2 Bb6 Qa3 Na6 Bd1 Qee4 Rc4 Bg1 Qb2 Nc5 Rd4 Bh2 Qbf2 Qe2 Bc2 Qd1+
qK3nnB/4b1rk/1RrQn2N/2Br1b1R/r2Q1PBN/7N/p7/1qNq3B w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 a5 Ke5 c5 f4 h5 b4 a4 d4 e3 g4 h3 d6 c4 b6 e2 b5 e1N d5 h4 d7 e6 g5 c3 b7 h2 b6 c2 d6 h3 Bb2 c1R Bg2 a3 Qd4 a2 Nc3 Nh6 Nce2 Rb1 Nf3 Rg8 Nc1 Qe7 d8N Nc2 d7 Qf7 Nh4+ Kh7 Bf3 Ra4 Bg4 Qg6 Nf7 Bb4 d8N Be7 Ba3 Rg7 Bc5 Rbb4 Rb1 Ng8 Nh6 Rb5 Ndf7 Qd3 Rb3 Qd1 Rb1 Bf6+ Kd6 e5 Kc7 e4 Rb4 Nd7 b8B e3 b7 e2 Rb3 Rba5 Rb6 e1R Ba7 Nf8 b8Q Be6 Qbd8 Bc8 Kb8 Bf5 Q8d6 Bd8 Bb4 Rd5 Bc3 Be7 Bb2 Rg6 Bc3 Rf6 Bb2 Rg1 g6+ Kg7 Ng5 Rg3 Re1 h1Q Re5 h2 Nh3 Qhg1 Ba1 h1Q Bc3 Kh8 g7+ Kh7 Ba1 Bd3 Rh5 Bf5 Rb7 Qge1 Bc5 Qb4 Rb6 Qb1 Q6e5 Rc6 Qd6 Na3 Bc3 Nb5 Bb2 Nc7 Ba1 Nce6 Bc3 Nf6 g8B+ Kg7 Bf7 Kh7 Be8 Ng8 Bd7 Rc7 Bc6 Rg2 Ba8 Rc6 Qd2 Rdd4 Ba1 Rc7 Be2 Rd3 Bh8 Rg7 Bg4 Qc6 Rb5 Qa6 Bh1 Rd5 Qd4 Rc6 Rb6 Qa8#
r6Q/n1B1qRN1/2Q1rR2/N1N2b2/nb2p2N/rBP5/1n1K4/qB2qkBq w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 Kf7 b4 Kf6 g4 h5 b6 e5 b7 a5 c3 d5 b5 a4 b6 a3 Bb5 e4 Kd2 d3 Rh2 d4 Nf3 a2 Qa4 h3 Nh4 Nd7 b8Q Bb4 b7 Rh6 Rf2 h2 Na3 h1R Nc4 Nc5 Na5 Qe7 Ba6 Be6 Qc6 Na4 Qbe8 Rh2 b8B Rg2 Rb1 a1Q Bc7 Rg6 Ba3 Rg1 Rb2 Rb1 Ra2 Rb3 Bc1 Ra3 g5+ Kg7 f6+ Kh7 f7 Bf5 Qd5 Re6 f8N+ Kg7 g6 Kh6 Kd1 d2 g7 Nb2+ Ke2 d1N Kd2 d3 Qdc6 Na4 Nd7 Ndb2 Qb8 Qg5 Rf1 Ne7 g8B Qg3 Nc5 Nc8 Bc4 Na7 Bb3 Bh3 f5 Kg5 f6 Bf5 f7 Kg4 f8N Kh3 Rf3 Kh2 Bc2 Kh1 Bb1 Kg1 Nhg6 h4 Qbe8 h3 Nh4 Rf6 Bb3 h2 Nfe6 h1Q Ng7 Rd6 Qh8 Re6 Ke3 d2 Ke2 Bg6 Rf6 Bf5 Rf7 Qe5 Rf6 d1Q+ Ke3 Qg4 Kd2 Qd6+ Ke3 Bh7 Rf7 Qe7 Bd2 Nd3 Be1 Qg6 Raf2 Qg3+ Kd2 Ndb2 R2f6 Bf5 Bf2+ Kf1 Bg1 Qe1+
R2r1n1B/2Qbk1br/1Q4n1/1B2N2q/3Pn2R/K2npR2/1bRBrN1q/2B5 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 h5 d4 a5 Kd2 e5 Kc2 c5 Kb3 e3 f4 e4 f5 a4+ Ka3 h3 b4 c4 d6 h4 f6 c3 g5 c2 g6 h2 f7+ Kd7 b6 e2 b5 e1Q g7 e3 b7 h3 b6 Qa5 Nf3 Ne7 g8R Rh7 Rg2 Qc7 Nc3 Bg7 f8R Ng6 Ne4 Qh5 Nf2 Ke6 d7 Ke7 Bb5 Qg3 Ka2 a3 Ne5 Qgh4 Kb3 a2 Rf3 Qf4 Qe1 Qfh4 Qc3 Qf4 Rhg1 h1N Qc7 Ng3 Rh1 h2 Kb4 Ne4 d8B+ Kf8 Kb3 Nd7 b8Q Ke8 b7 Qfh6 Ba6 Ndf8 Ka3 Bd7 Qa7 Rc8 b8B Qf4 Bh4 Rd8 Bb5 Qfh6 Bg3 Ke7 Qab6 Qf4 Nd1 Qfh4 Be1 Qf2 Bed2 Qe2 Rhf1 h1R Nf2 Rh2 Rg4 Rg2 Re1 Qh2 Rh4 Qd1 Re2 Qdh1 Rb1 a1B Rb4 Qd1 Ra4 Bc3 Bb2 c1N Ra8 Nd3 Bbc1 Qf1 Be1 Qfh1 Rc2 Ba1 Bed2 Bb2+ Ka2 Rg1 Nc4 Nf6 Rhh3 Ne4 Qc8 Q2g2 Be5 Bh6 Bh8 Bg7 Qcc7 Re1 Ne5 Re2 Rh6 Qg4 Rh4 Qh5 Kb3 Qh2 Ka4 Bc3 Ka3 Bb2+
rbN4K/2B1Q1n1/3rr2k/B1bR3N/2p1B1PB/Q3qbRQ/Q2q1b2/1n4q1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg7 Kf4 h5 Ke5 c5 d4 a5 g4 c4 b4 e6 f4 a4 d6 a3 d5 h3 b6 h2 d7 a2 f5 h4 b7 e3 f6+ Kh6 f7 h3 b5 Qa5 d8B Nf6 b6 Qb4 d6 Bg7 f8Q Na6 b8Q Nc5 b7 Na4 d7 Nc3 Nd2 e2 Ba5 e1B d8Q Bf2 Qbd6 Qb2 Bd3 Bd7 Qf3 Bc6 Qb4 Be4 Rb1 a1B b8B Bc5 Qg3 Bf3 Qfe7 Rf8 Qdd7 Rd8 Qa3 Qb3 Ne2 Ne8+ Kf4 e5+ Kf5 e4 Rg1 h1R Nf4 h2 Nh5 e3 Ne4 Qb4 Nd6 Be5 Qh3 Bg3 Qb5 Bf2 Rg3 Re1 Nc8 h1Q Be5 Qb2 Qbb3 Qg1 Qba2 Qe2 Rb2 Nb1 Rd2 Qd1 Ke6 e2 Kf7 Ng7 Bh7 Rd4 Kg8 Rd3 Bf6 Be5 Kh8 Bb8 Bh4 Rd5 Bc7 Rd6 Bb2 Qc2 Rd5 Qd2 Bg6 Rc1 Bbf6 e1Q Bc3 Qe4 Bf5 Re1 B3a5 Qed3 Bh7 Ree6 Be4 Q3e3
r1N2K1b/2NQ4/2B2NR1/B1q1P1pn/1q4r1/R2nqR2/1nb5/Rb2QnNk w - - 0 1 illegal: No possible last move, all moves rejected
1NNRR1nk/2N2b2/nr2R1K1/1QqP1N1B/8/pq1q2Rn/7r/bQ2B1bq w - - 0 1 illegal: No possible last move
4q1nn/5B2/bB1K4/RRP1Rp1q/B1RNn1rr/Q3nQb1/1r1kq2N/7B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 h5 e4 a5 g4 f5 b6 d5 g6 h4 g7 h3 b7 a4 g5 h2 g6 f3 Bg2 f2 Ne2 f1Q Be3 d3 Nd4 a3 Nd2 a2 N2f3 Qf2 Re1 h1R Nh2 d2 Qf3 Rg1 Bh1 d1N b3 Kc3 b4 Ra3 b5 Rb3 b6 Nd7+ Ke6 Qdh4 b8R Bd6 e5 Qe2 b7 Qh5 Rc1+ Kd3 Ra8 a1Q b8R Rg4 Rb5 Nc3 Raa5 Qa4 Bg1+ Kd2 Bf2 Nh6 g8B Ba6 g7 Ne4 Bf7 Ndf6 g8Q Rb2 Qa8 Nfg8 Kd7 Rh7 e6 Bg3 e7 Rh8 e8B Rh7 Nc6 d4 Bg1 d3 Bb6 Rh8 c5 Rh7 Nd4 Rh8 Bb3 Nf7 Rc4 Rh7 Ke6 Nh8 Bf7 Rh6+ Kd5 Rh7 Rbb4 Qe8 Ba4 Rh4 Rb3 Rg7 Rbb5 Rgg4 Qa7 Qf2 Re3 Qe2 Qa8 Ke1 Qa7 d2 Qa8 d1N Qa7 Nd2 Re5 Ne4 Qa8 Kd2 Qa3 Ng5 Kd6 Ne3 Qf3 Ne4+
1R1n2q1/1bQBkb2/rRQb2P1/Rn3Bn1/3p3B/B1RN3K/rr4r1/1N1q4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 a5 f4 h5 Kf2 e5 c4 d5 g4 a4 Kg2 e4 b6 e3 c5 e2 c6 e1Q b5 d3 g5 a3 c7 a2 f6 d2 b7 d4 f7+ Kd7 b6 Ke7 g6 Ra6 f5 Nf6 Qc2 d1N Kh3 Nc6 b8R Bb7 c8B Nc3 Bd3 Nh7 Nf3 Nb5 Ne5 Qd1 Bd7 Qe8 Rg1 Nd8 Qc6 Rg8 Rg3 Ng5+ Kh2 h3 Ba3+ Nd6 Be4 h4 Rc3 Rg7 Nd3 Rh7 Bc1 Nb5 Qc7 Bd5 b7 Bc4 Bd2 Be6 Be1 Rg7 Kh1 h2 Kg2 h1B+ Kh2 h3 Bh4 Rh7 Kg3 h2 Qc6 Bg7 f8R Bf7 Rh8 Qg8 f6+ Kf8 Bef5 Bf3 Qb6 h1R Qc6 Rh5 Rh7 Rh2 Rh8 Rb2 Rh7 Ne4+ Kh3 Rg5 Rh5 Rgg2 Rh8 Bd5 f7 Be5 Rh5 Be6 Rg5 Ke7 f8B+ Kf6 Ba3 Bd6 Rc8 Bc4 b8Q Bf7 Qbc7 Ke7 Rb8 Ng3 Nd2 Ne4 Rb1 a1R Rb6 Raa2 Rb8 Rc2 Rb4 Rcb2 Nb1 Na7 R4b6 Nb5 Bg4 Nf6 Bgf5 Nh7 Qc5 Ba8 Q5c6 Bb7 Be4 Na7 Rgb5+ Nf6 Ra5 Nb5 Be1 Nh7 Bef5 Rbe2 Bg3 Reb2 Bh4+ Ng5+
b1N3R1/n7/5pP1/1Qqq1NnB/1q2k2K/1rb1B1rB/R1q2R1Q/1n2BRb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 g4 Ke5 d4+ Ke4 b6 a5 b7 h5 g5 c5 e3 h3 b5 c4 b6 h2 d6 f6 d7 h4 d5 f3 d6 a4 Qe2 a3 Bh3 a2 Na3 c3 Qb5 c2 Nc4 Nc6 b8Q Bb7 Ne2 Qc8 d8B Na7 d7 Qc5 Nd4 Nh6 Rf1 h1Q Nf5 Rg8 Qh2 Rb8 Bd2 c1Q Be1 Ba8 b7 Rg6 Bb6 Nf7 d8R Qc2+ Rd2 Qb4 Bd4 Bc5 Nb6 Rgg8 Nc8 Bb6 Rb1 a1B Rb2 Qbc5 Ra2 Bc3 Bg4 h3 Kg3 Qb4 Kh4 Qg1 Rdf2 Rg6 Qc7 h2 Bh3 h1Q Qh2 Qhg2 Qc6+ Kd3 e4 Bc5 e5 Bb6 Re2 f2 e6 Qd5 e7 Bc5 Rd2+ Ke4 e8B Rg7 Be3 Rg8 Re2 B5d4 Qb5 Bb6 B1d2 Bc5 Rb1 f1N Be1 Nd2 Rf2 B5d4 Rc1 Nb1 Rd1 Qf1 Rc1 Qfc4 Rd1 Qcc5 Rc1 Nh8 Bh5 Nf7 Rd1 Rh8 g6 Ng5 B1d2 Rd8 Rdf1 Rd6 Be1 Ra6 Qc6 Ra3 Qb5 Rb3 Nce7 Rd8 b8R Rd6 Rg8 Ra6 Bc1 Raa3 Nc8 Be3 Rg2 Bg1 Rgf2 Be5 Bcd2 Rg3 Bc1 Rab3 Be3 Bc3
6Q1/K1N1b1Q1/1BrkPQBb/6b1/4Qrq1/2p3R1/r1Nqn3/nnBb1R1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 b4 f5 d4 h5 g4 a5 e4 c5 d5 h4 b6 a4 b5 c3 b7 c2 e5 a3 b6 f3 Ke3 a2 d6+ Kd7 g6 f2 g7 h3 g5 h2 g6 c4 Kd4 f4 Kc5 f3 Qd4 Rh6 Nc3 Nf6 g8B Nc6 b8Q Ng4 g7 Be7 b7 Ne3 Qe4 Nd4 Nd5 Ne2 Bg2 f1N Nc7 f2 Kb6 Nd2 Nf3 f1R Ne1 Nb1 Rg1 h1Q Qa7 Qh3 b8B Rf4 Bh7 Qg4 g8Q Re6 Bg6 c3 Bd2 c1B Bh1 Nc2 Rg3 Bb7 Be3 Bd5 Bd2 Bb3 Kb7 Ref6 Qad4 Ra6 Ba7 Rc6 Be3 Rf2 Bh6 Bg5 Bb6 R6f4 Qg7 Nd2 Rc1 a1B Ka7 Bb2 Qc4 Ba4 Qcg8 Na1 Nc2 Nb1 Rf1 Bc1 Nd5 Rc4 e6+ Kc6 d7 Kd6 Nc7 Rc6 Ne3 Bd1 Nc2 Qc8 d8Q+ Qd7 Qdf8 Nd4 Na3 Ra2 Qff6 Ne2 Q7f8 Rf2 Qgg7 Bgd2 Ba5 Kc5 Qe8 Qd4 Qeg8 Kd6+ Bb6 Qd3 Bhe3 Qd5 Bed4 Bh6 Be3 Rf3 Bed4 Bcg5 Be3 Rf4 Bc1 Rb2 Nc2 Qd2 Kb8 Ra2 Kb7 Na3 Ka7 Nb1+
k1qbK1R1/3R3B/2r1pb1Q/q1n1B1P1/8/1R4Qn/NRbB1N1b/qrB3n1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 Kb7 g4 a5 b4 h5 Kg6 e3 Kf7 e2 d4 e1Q f4 c4 d6 h3 b6 c3 d7 h2 d5 a4 b5 c2 d6 a3 f5 a2 g5 h4 f6 h3 Bg2+ Nc6 Qg4 Qa5 Be4 Rb8 Bh7 Ka8 Nc3 Nd4 Rb1 a1B Rb3 Ne2 Na2 e6 Qg2+ Bb7 Qg3 Qc8 d8R Be4 d7 Be7 Ke8 Rb7 f7 Baf6 Bd2 c1B f8Q Bc2 Qh6 Bcb2 Bc1 Bbe5 Bd2 Rc7 Bc1 Rc6 b7+ Ka7 b8B+ Ka8 b6 Bc7 Nf3 Ng1 Nd2 Bcd6 Ne4 Bf4 Kf7 Bfd6 Rf8 Bd8 Nf2 Qf5 Bb2 Ne2 Qg4 Ne7 Qhh5 Qa5 Bd3 Ng6 Rb1 h1Q Rg8 h2 Ke8 B8e7+ d8R Nf8 Qg6 Bf4 B8e5 Nd7 Bf5 Rh3 Qh6 Rd3 Qgh3 Rd1 Bh7 Qhe1 Qd3 Qec3 Ba3 Qa1 Bb4 Rf1 R1b2 Bg3 Bf4 Rb1 Bc1 Bf4 Bbd2 h1N Nd1 Bh2 Qg3 Nf2 b7+ Ka7 b8B+ Ka8 Bd6 Ng1 Be5 Nfh3 Nf2 Nc5 Kf7 Bg7 Rd7 Bd8 Ke8 Bgf6
r6B/1Nnb2bB/1knP2K1/q1RB3R/p2q2B1/q2NQQ2/2rr4/Q2nq2Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 a5 d4 h5 e5 a4 g5 c4 e6 h3 d6+ Kb6 g6 h4 e7 h2 e8B h3 d5 c3 g7 c2 d7 Qf6 d8Q+ Kb7 b6 Qe7 d6 Rh7 b5 Qh4 Bg6 Ra7 Ne2 Be6 Qf6 Na6 Nbc3 Bc8 Ne4 Bd7 Bb2 Ra8 Nc1 Nc7 Nd3 c1R Be2 Ne7 g8B Rc2 Bd5+ Nc6 Rc1 Bg7 Qg1 Qe1 Qe3 Qa5 Bc3 Rh5 Bh7 Rg5 Bd1 Rgg2 Bb2 Rgd2 Nec5+ Kb8 b7 Ka7 Qf8 Kb6 Qf7 Bf8 Bh8 Bg7 Rg1 h1N Rg5 h2 Rh5 Nf2 Qf6 Qb4 Qa1 Qd4 Be2 Nd1 b8Q+ Ka5 Qd8 Kb6 Qg5 h1Q+ Qg2 Qh4 Nb7 Qg5 Qh1 Qd8 Kg2 f3+ Kh3 f2 Bg4 f1Q+ Kg3 Qc8 Kh4 f4 Kg5 f3 Kg6 f2 Qhf3 Qd8 Qh1 Rb2 Rc5 Qh3 Qef3 f1Q Qe3 Ka7 b6+ Ka6 Na5 Qf2 b7 Qe1 b8Q Rbc2 Qb3 Qf3 Qba3 Kb6 Nb7 Qh3 Nc1 Ne6 Qeb3+ Ka6 Qg3 Qa5 Qgg2 Qhe3 Qf3 Nc7 Qd3+ Ka7 Qde4 Qb3 Nd3 Kb6 Qee3 Qa3
2BrN1Q1/1R1Qr2R/pb1K4/2qB3q/r1NqR3/b2kP2B/b6n/b1n1B1R1 w - - 0 1 illegal: No possible last move, all moves rejected
NB1q4/1R3n1p/r1R1RN2/3Pq1q1/N2Qr3/2n1RNbb/nqB3b1/Q2K1k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 f5 g4 a5 g5 c5 g6 a4 b6 a3 g7 h3 b7 h2 b5 f3 b6 a2 Be2 c4 Bg5 f4 Qc1 c3 Ba6 f2+ Kd1 f1N Nf3 Nd2 Re1 h1B Bd3 Ra6 Re3 Bg2 Bc2 Nc6 b8R Bch3 b7 Nb4 Rc8 Nh6 b8R Nf7 g8N Bg7 Bh6 Be5 Nf6 Re8 Rb7 Re6 Bg5 Re7 Bh4 Re6 Bg3 Re7 Ng5 f3 Rcc7 f2 Nf3 Nb3 Bh2 Bg3 Qb2 Nc5 Rc8 Rc7 Qc1 Na4 e5+ Ke7 d6+ Ke6 d7 f1Q+ Ne1 Qf2 Nf3 Rc4 Rc6+ Ke7 d5 Re4 e6 Qg1+ Re1 Qgb6 Re3 Qbc7 Qd2 Qe5 Qd4 Qg5 Ne8 Qe5 Nc7 Kf6 e7+ Kf5 e8N Kg4 Na8 Kf4 Nf6 Qg5 Na3 Qe5 Rc1 a1Q Re6 Na2 Nc4 Qb2 Ncb6 Qc8 d8Q Qcb8 Qh8 Qd8 Bd3 c2+ Kd2 N4c3 Na4 Qb3 Rb1 Qa3 R1b6 Qb2 Rbc6 Bg4 Be2 B4h3 Bd1 c1Q+ Kd3 Qa3 Bc2 Qcb2 Kd2 Qae7 Nd7 Q7g5 Nf6 Bf5 Nd7 Kg4 Nf6+ Kh3 Qg7 Bh1 Qh8 Kg2 Qg7 Bh3 Qh8 Ne2 Kd1 Kf1 Qg7 B1g2 Qh8 Be1 Bf4 Bg3 Qg7 Qef5 Bb8 Qe5 Qf8 Nac1 Qa3 Nc3+ Kd2 Qb4 Qb2 N1a2 Qa1+ Nb1+ Kd1 Qb3 Ng4 Qb2 Nf6 Nbc3+
n3QQnQ/Q2B1p1K/1b2b3/r2b3k/1n2q3/3Bq1PN/2BNrB2/1RR3br w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 Kf3 a5 Ke4 d5+ Ke5 d3 e4 d2 b4 d4 c4 h4 g6 f3 g3 a4 c5 a3 b6 h3 c6 a2 b5 f2 c7 h2 g7 d3 b7 Nd7+ Kf5 Qe7 b8Q Nb6+ Kf4 Ra5 e5 Na8 Qa7 Be6 Qh5 d1R c8B d2 b6 Re1 b7 d1B b8Q Bdb3 Nd2 Bbd5 Bd3 f1N Rb1 a1B Nh3 Bd4 Qh4 Qa3 Kg5 Ne3 Bd7+ Ke7 Bb2 Bc5 Bd4 Nc2 Bf2 Re2 Rhc1 h1Q Qd4 Nb4 Qa1 Bf5 e6 Bb6 Qae5 Qe4 Bc2 Nh6 g8B Qae3+ Kh5 Bg7 Bh7 Ng8 Qc3 Bgd4 Qf8+ Kf6 e7 Bfe6 e8Q Q3d3 Qcc8 Qc3 Be1 Bg1 Bf2 Ne7 Kh6 Qce3+ Ng5 Ke5 Kg7 Ng8 Bg6 Rh2 Nh3 Rh1 Kh7 Kf6 Bf5 Qg2 Bfd3 Qge4+ Kh8 Kg6 Qc3 Kh5 Kg7 Qc4 Kh7 Qcf4 Qh8 Qfe4+
8/NqBp1N2/4Bnr1/2Qqn2N/1b1brnNB/2P1BR1R/4b2Q/k1nr3K w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 Kf7 Kf2 Kf6 g4 h5 Kg2 e5 b4 a5 b6 d3 b7 d2 b5 e4 b6 a4 Ra3 e3 Bc4 e2 Be6 e1B Rf3 a3 Qe2 d1R Nh3 a2 Nc3 a1N Nb5 Ra6 Be3 Qc7 Na7 Bfb4 Nf2 Nc6 b8N Qb7 Rhh3 Ne5 Nbc6 Nb3 Kh1 Nc1 Nd8 Bc5 Qd2 Bd4 Nf7 Ra4 Qe2 Rh6 Qd2 Qd5 b7 Rg6 b8B Ba6 Bc7 Bf1 Qe2 Bb4 Qd2 Qb7 c3 Be2+ Qe1 Ke7 g5 Nf6 Qg1 Qd5 Rh2 h3 Ng4 Bf1 Qg2 h4 Qf2 Be2+ Qg1 Rh6 g6 Qb7 g7 Rg6 Rg2 h2 Rgg3 Qd5 Rh3 Qb7 Kg2 h1N Qh2 Ng3 g8N+ Kf8 Ba2 Ngh5 Be6 Nd5 Nf6 Ke7 Ne8 Nhf6 Ng7 Rd2 Nh5 Rd3 Rhg3 h3+ Kh1 Rd1+ Qg1 h2 Rh3 Ne8 f6+ Kf8 f5 Nf4 Nh8 Qd5 f7 Ke7 Rg3 Nf6 f8B+ Ke8 Bh6 Ke7 Bg5 Qb7 Rh3 Qd5 Bd8+ Kd6 Bh4 Kc5 Nf7 Kc4 Bb6 Kb3 Bc7 Ng8 f6 Kb2 Nfh6 Qb7 f7 Nf6 f8Q Ka1 Nf7 Nfd3 Kg2 Qd5 Qc5 h1Q+ Kg3 Nf4 Qf2 Qe1 Kh2 Qd2 Qg2 Qb7 Qg1 Qa2 Kh1 Qad5 Kh2 Ba5 Qf8 Bdb6 Kh1 Re4 Qd6 Bd4 Qc5 Bf1 Qg2 Bb4 Qh2 Be2+
q1B1B1q1/2PB4/Rn1bn3/b1N1kNQr/qb1N1N2/5r2/RB1pb2n/1K2Q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 h4 Ke6 b4 a5 e4 d5 c4 g5 Kc2 f5 h5 g3 h6 a4 h7 g2 b6 a3 b7 f4 c5 g4 b5 a2 c6 g3 b6 f3 c7 f2 Rh2 Nd7 b8Q Nc5 b7 Ne7 Ba6 f1N Nf3 g1Q Bb2 g2 Na3 d3+ Kc1 d4 Nb5 Ra7 Nd6 Nd5 Qe1 Nb6 Nf5 Bd6 Qa8 Qh1 b8N g1B Nd7 d2+ Kc2 Rf8 h8N Bf2 Bb7 Ra5 Ng6 Be3 Rh6 Nh2 Qa7 Rb5 Qa5 Bg5 Ba6 Bge7 Bb7 Rf6 Ba6 Qg8 Nf4+ Kf7 Bb7 Ne6 Nc5 Bd7 Bc8 d3+ Kc3 d1Q N3d4 d2 Kd3 Qdg4 Kc2 Rb3 Rg6 Rh3 Rh6 Rh5 Qb5 Ng7 Qa5 Bb5 e6+ Kf8 e5 Be2 Rg6 Qa8 Rh6 Ke8 Rg6 Bf8 e7 Kf7 Rh6 Rg6 e6+ Kf6 e8B Ke5 e7 Rf6 Rg6 Ne6 Bed7 Qh4 e8B Bfe7 Rc1 a1B Kb1 Rf8 Rc2 Rf6 Ba3 Bc3 Ra2 Rf7 Bb2 Qg4 Qa3 Ba5 Qag3 Bf8 Ncb3 Bdb4 Nc5 Bd6 Qgg1 Qg3 Rf6 Qa3 Qg5 Qa4 Qc1 Nd5 Ng2 Nf8 Qe1 Be7 Ra6 Nb6 Nh6+ Rf5 Qgh4 Rf4 Nhf5 Ne6 Qg5 Rf3 Nf4 Bd6
q1q3kB/1QP1Rn2/N7/4Qp2/rn1KRq1b/3b1r2/B2nrB2/1Nr2NNB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 h4 Kf7 e4 d5 c4 g5 b4 a5 e5 a4 b6 d3 c5 a3 b7 d4 c6 a2 c7 g4 b5 f3 e6+ Kg7 e7 d2 e8B d3 Ke3 g3 h6+ Kh7 b6 f2 h5 g2 Qf3 d1Q Bf7 d2 Rh4 Ra7 Re4 Bd6 Kd4 Na6 b8N Bg3+ Nd7 Bh4 b7 Nb4 b8N Qa4 Na6 d1R+ Bd3 f1R Be3 Rde1 Bf2 Rc1 Re7 Bb7 Be4 Qc8 Nb6 Rfe1 Bc6 Re2 Nc4 Ba8 Be4 Bd5 Ncd2 Bc4 Qb3 Bd3 Nf1 Ra8 Qd5 Ra7 Qb7 Ra8 Nf3 g1Q Bed5 Qg3 Ng1 Qa3 Bh1 Qf4+ Re4 Ra7 Nc5 Ra4 Na6 Ne7 Bd5 Ng6 Bb3 Re8 Bc4 Kh8 h7 Ne5 Bg8 Kg7 h8Q+ Kf8 h6 Nf7 h7 Re3 Qe5 Rf3 Nbd2 Re7 Rb1 a1N h8B Re8 Rb2 Re6 Rc2 Re8 Nb1 Nb3+ Kc3 Nd2+ Kd4 Ng5 Bd5 Nf7 Ba2 Kg8 Rc5 Qb3 Rb5 Qbe6 Rc5 Qa8 Rd5 Qec8 Rd7 Re6 Re7 Rg6 Be1 Rg2 Bg3 Re2 Be1 Rfe3 Bf2 Rf3
2Q2N1b/1Rpq1rkr/r7/1P1N1nn1/4qb2/1n1RB2R/1R1NQ1N1/1n1bKB2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 f5 e4 Kf7 g4 h5 b4 a5 d6 f3 d5 f2+ Ke2 f4 e5 a4 g5 f3+ Kd2 h3 b6 a3 b5 h2 e6+ Kg7 b7 a2 e7 h4 e8Q h3 g6 Qd7 Qde1 Nh6 Q1e2 Nc6 b8R Rh7 Rb7 Nf5 Kd1 Ncd4 Nd2 Be7 Rb1 a1B Rb2 Ra6 Qd8 Nb3 Qh8+ Kh6 g7 Bg5 g8N+ Kg6 Nf6 Bf4 Qhe8+ Kg7 Q8e6 Nh6 Qf5 Nf7 Qfe6 Ng5 Qg4 Qe6 d7 Qd6 d8R Qd7 Rb8 Bb7 d6 Be4 Rb7 Bg6 Bg2 f1N Ke1 Bc2 Nd5 Bd1 Qge6 Ne3 Bf1 Nc4 Qg4 Na3 Qge6 Nb1 Qg4 Qe8 Qc8 Qe6 d7 Qf5 Re8 Qf7 d8N Qd7 Rc2 Bd4 Re3 Ba1 Rd3 Bd4 Bg2 Bf6 Rb2 f2+ Kf1 Bc3 Ngf3 Bce5 Nh4 Bf6 Rg1 h1Q Ne6+ Kf7 Nf5 h2 Nfe3 Bh8 Nf8 Kg7 Bh3 Qf3 Rg3 h1N Ng2 Qe4 Nc4 Rh4 Be3 Rhh6 Nd2 Rh7 Qf3 Bc2 Ke2 f1R Qg4 Rf2+ Ke1 Bd1 Qe2 Rf3 Nh4 Rf2 Bf1 Rf3 Rh3 Ng3 Ng2 Nf5 Rh2 Rfh3 Rh1 R3h6 Rh4 Rhf6 Rh3 Rf7
1br2q2/PNRn3B/1pr2Rnk/1q1QRrqb/7R/1Nb5/2QqB3/2K1B2B w - - 0 1 illegal: No possible last move, all moves rejected
1Q3b1n/1b3N1n/Qnn1QB2/Q1r1RB1K/1N1n4/b2r3B/pqP5/3kBn1R w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 b4 Ke4 f4 e5 b6 d5 g3 h5+ Kh3 a5 b7 d3 g4 d4 b5 d2 g5 Ke3 b6 d3 g6 a4 g7 a3 Nc3 e4 Ra2 Qf6 Nb5 Ne7 g8B Ra5 Nd4 Ng6 Qg4 Nc6 b8B Bb7 Rb2 a2 Nb3 Rc5 Rb1 Qb2 f6 Rh6 f5 Nh8 f7 Rd6 Kg2 h3+ Kg3 h2 f6 h4+ Kh3 Kf2 Nd4 Ke1 Qe6 d1N Kg4 e3 Bh7 d2 Nh3 e2 Bf5 Nc3 Ng5 d1N Kh5 Ne3 B1h3+ Nf1 Ra1 Rdd5 Bg3+ Kd1 Be1 Na4 Rb1 Qa3 Rb5 Qb2 Bcd2 Rd8 Bb4 Rdd5 Bec3 e1B Ra5 Bg3 Be1 Bgd6 Bbc3 Ba6 b7 Nb6 b8Q Bb7 Qa7 Bde7 Qa6 Rd7 Nb5 Rd3 Nc7 Bd6 Nd5 Bde7 Rg1 h1N Nb4 Nf2 Rh1 Ne4 Be5 Nd6 Bd4 Nb5 Bdc3 Nbd4 Rb5 Bh6 f8Q Bg7 Qe8 Bgf8 f7 Bd6 Qea8 Bde7 Bg2 h3 Q8a7 h2 Bgh3 Ne2 Bf6 Ned4 Rg1 h1N Qa8 Rcc3 Re5 Nf2 Rh1 Ng4 Qa5 Rc5 Q8a6 Bh6 f8Q Bg7 Qfc8 Bgf8 Nf7 Bd6 Bg7 Bde7 Qb8 Nf6+ Kg5 Nh7+ Kh5 Rc4 Bf6 Rcc3 Nd5 Ba3 Nb4 Rc5
2qRNQb1/r6r/Qb2Nb1R/1rb2NP1/1B2R3/b4bR1/1pn3BN/k3K1n1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kf7 f4 b5 a4 h5 g4 c5 f5 e5 d6 c4 f6 Ke6 g6 Kd5 d7 c3 f7 b3 g5 e3 a5 e2 a6 Kc4 d5 h4 a7 e4 g7 h3 d6 b2 Kf2 c2 Ra2 Kb3 Qd2 e1B+ Ke2 h2 Qd1 b4 Qd2 e3 Ra5 Nf6 g8Q Na6 Ra2 Bf2 Bh3 Ne4 Nf3 Rh7 Na3 b1R Bg2 Nc3+ Kf1 Be7 Qd3 Bf6 Nb5 Bg1 Qe8 e2+ Ke1 Bb6 f8R Rb2 Rg1 h1B Bd2 c1B Nh2 Rb1 Ra5 Kb2 Rh8 b3 Qf8 Nb4 Ra4 Bb7 Nd4 Bd5 Nf5 Bg8 Qc4 Qc8 d8R Bc5 d7 Bb6 Bh3 Bf3 Rg3 Bc5 Bg2 Bb6 Nd4 Bc5 Qa6 Nc2+ Kf2 e1B+ Kf1 Qc6 Nf5 Ne2 Re4 Ng1 Ba5 Bef2 Bb4 Rh5 Rh6 Qc8 Rg6 Rh7 Rh6 Rb8 a8N Rb7 Nc7 Ra7 Ne8 Bb6 Qc4 Ka1 Qd3 Bfc5 Qe2 Nd4 Qa6+ Ba3+ Kf2 Rb2+ Ke1 Qb7 Rb8 Qc8 d8N Nc2+ Kf1 Ra2 Ne6 b2 Ra8 Qc6 Rd8 Qc8 Qe2 Ra5 Qa6 Rb5 Qa7 Bcd4 Bd2 Bae7 Qb7 Ra7 Qa6+ Ba3 Bb4 Ne3+ Kf2 Bdc5 Ke1 Nc2+
1bB2r2/Q1b1N3/2qQR3/3rQpK1/2nrr3/1P1k1rNn/1Q5R/B1Bb1r1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 e4 Kd4 b6 c5 b7 a5 g5 h5 g6 c4 e5 a4 d6 a3 b3 h3 g7 a2 e6 h2 d3 h4 Kg4 f3 d7 f2 e7 c3 e8B c2 Nc3 h3 Bd2 c1B Nd5 Ra4 Rb1 a1R Bg2 f1R Qc2 Bd6 Qa2 Ne7 g8Q Ng6 Ne7 Qc7 Kg5 Rf3 d8Q Nc6 b8Q Nf4 Bd7 Na5 Qh7 Rf8 Qb2+ Qc3 Qdc7 Nc4 Qh6 Bb7 Bc8 f5 Qf6+ Be5 Qcd6+ Bd5 Qbc7 Ra5 Qfe6 R1a4 Qa7+ Rc5 Ra1 Rb4 Ra6 Ra4 Qdb8 Bc7 Qe1 Bf7 Re6 Bh5 Qd1 Bb6 Qd6+ Rd5 Qe2 Bg4 Qa2 Ba3 Qb2 Bac5 Qe1 Bc7 Bc1 Bb8 Qg3 Bb6 Qe1 Rf2 Be4 Bd1 Qee2 Rb4 Qe1 Rd2 Ne2+ Ke3 d4 B6c7 Bf3+ Kd3 Ng3 Rf2 Bg2 Rf3 Qee5 Qc2 Rf1 h1R Rf2 Rf1 Bh1 Re1 Rg2 Re4 Rh2 Rdb5 d5 Ra4 Qd8 Rd4 d6 Rbd5 d7 Qc3 Qe8 Qc2 d8B Qc3 Rc2 h2 Qd7 Re4 Qdd6 Red4 Bg2 h1R Rf2 Rf1 Bh1 Qb4 Rh2 Qb6 Qg2 Qc6 Qb2 Ba5 Bb6 Re4 Bd4 Bac7 Qg2 Rb4 Ba1 Ra4 Qgb2 Nh3+ Kg6 Nb6 Kh5 Rad4 Kg6 Nc4 Kh6 Nf4 Kg5 Nh3+
6br/bQ5P/rR2N2B/Rr3BRN/K1rrpn2/QB2q1r1/2nn4/R2B1k2 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Kc3 Ke6 Kb3 Kf5 f4 e5 c4 a5 h4 d5 c6 g5 c5 a4+ Kb4 a3 h5 g3 h6 a2 h7 g4 c7 d4 b6 e3 b7 Ke4 f5 g2 f6 g3 f7 e2 Qb3 e1R Qa3 d3 Bh6 d2 Ne2 g1R Rh5 d1R Nf4 g2 Nc3+ Ke3 Ncd5+ Kf2 Ne6 e4 Be2 Qg5 Nf6 Na6+ Ka4 Rd4+ b4 Ne7 b8Q Rb1 c6 Rgc1 Qb7 g1R Bd1 Qe3 Ra5 Rcc4 Nh5 Rg3 Bb3 Bd7 c8B Ng6 Rg5 Bg7 f8R+ Nf4 Rff5 Kf1 Ra5 Be5 Bd1 Bb8 Bb3 Be8 Bd1 Bg6 c7 Ba7 Bd7 Rb3 c8B Bf7 Bc6 Rb2 Bd5 Bg8 Bd7 Rcc2 Bb3 Rcc4 Rb1 a1N Bc8 Nc2 Ra1 Ne1 Bd7 Nf3 Bc8 Nd2 Bd7 Rc5 Bc8 Rd6 b5 Nb4 b6 Rc4 Ba2 Ng6 Qc7 Bb8 b7 Nf4 Neg7 Raa6 Bf5 Ba7 b8R Rdd4 Ne6 Rb3 Rb6 Nbd3+ Qb4 Rb1 Qb7 Rb2 Ka3 Rb1 Qd6 Rb5 Bab3 Rc7 Qc5 Rc6 Qc1 Nb4 Ka4 Rcc4 Qa3 Nc2+
3q2B1/1Q3Bk1/K1Q5/BNbr3b/B1b5/2NnrQb1/1Rpb3P/1R1Qrr1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 e4 a5 Ke2 g5 d4 f5 Qd3 Kf7 b4 c5 e6+ Kg7 e7 g3 e8B a4 d5 c3 e5 f4 d6 g4 b6 f3+ Ke3 g2 d7 f2 b5 a3 b7 g3 e6 a2 e7 c4 Kd4 c2 Kc5 Qb6+ Kb4 Na6+ Ka4 Rh3 b8Q Nf6 d8Q Ng4 Qd8d6 Qd8 b6 Nb4+ Kb5 Ra4 Bf4 c1B b7 c3 Qbc7 c2 Ne2 g1R b8Q g2 Nd4 Ra5+ Kb6 Bf5 Qb7 Bg6 Ba4 Bh5 e8B+ Be7 Be2 f1B Bd2 Nf2 Qb3 Rc5 Nb5 Rd3 Q3d5 Re3 Bc4 Bfe2 Qf4 Rd1 Qbc6 g1R Qff3 Bd3 Qdd6 Rce5 Bd5 Bc4 Bg8 Reg5 Qd3 Rd5 Bef7 Bh4 Ka7 Bg3 Q7b7 Ba3 Qde2 Nbd3 Ba5 Bc5+ Ka6 Rc1 Qd2 Rgd1 Re1 Nh1 Nc3 Rb1 Re2 Rf1 Re1 Rd1 Qde2 Rd2 Rec1 Rdd1 Qd2 Rde1 Qdd1 Ree5 Rcb1 R5e2 Rb3 Re3 Rab1 a1B Na2 Bc3 R3b2 Bd2 Nc3 Bf4 Qde2 Bb8 Qd1 Bg3
QQ4R1/b7/Brrn1QB1/rQrn4/1R1N3P/2k1NK2/4b1pB/1q1rb1Bb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 h4 Ke5 b4 Kd4 e5 f5 b6 c5 d3 a5 b5 g5 d6 f3 e6 g3+ Ke1 f4 e7 g4 e8B f2+ Ke2 f3+ Kd2 a4 b7 c4 b6 a3 d7 a2 Rh3 g2 Rh2 g3 Be2 f1B Rh1 f2 Qb3 Ra5 Na3 Ne7 Bg6 Na6 b8B Bb7 Rb1 a1R Qb5 Nd5 Rb4 Nc5 Kd1 Qf6 d8Q Rh6 Nc2+ Kc3 d4 Qf5 Qf6 Ne4 Nf3 g1B Ne3 Rb1 Rh2 Bc5 Rg2 Nd6 Bc7 Ba8 b7 Ba7 b8Q Rb3 Bb6 Qb1 Bc5 Rh8 Bed3 Rc8 Bb6 Bh2 Rg1 Rc6 Bc7 Bg2 Ke2 f1R Ba3 Bh1 Rg2 Ne7 Bc1 Rd1 d5+ Bd4 Ba3 Bg1 Bc1 Bf2 Bb6 Be1 Rg1 Nf7 d6 Nd5 d7 Nd6 d8Q Bb7 Qa8 Ba6 Qdb8 Rc5 Nc2 Rc6 Bf4 Rc5 Ne3 g2 Rf1 Rc6 Bg3 Rc5 Bh2 Rc6 Qf7 Bc5 Nd4 Rb2+ Kf3 Rb3 Bd8 Ba7 Bb6 Rb2 Qc5 Ne7 Nef5 Bb7 Rb5 Ra1 Nb3 Ba6 Kg4 Raa2 Qcd5 Ra3 Bbg1 Ra5 Nbd4 Kd2 Ne3 c3 Rf6 c2 Kf3 c1R Qfe6 Nc4 Rf8 Nd6 Rg8 Rb3 Qc4 Nd5 Qf6 Rb4 Qb3 R1c5 Qa4 Kc3 Rb7 Rbc4 Rb2 Rcb5 Rb4 R4c5 Be2 Rbb6 Bf1 Bd3 Be2 Bf5 Ba6 Bd3 Qb5 Be2+
2nB2n1/1Q3Qr1/3Rb2r/Q1Br1rPn/nn5k/B1QBb3/1q1pN1R1/K5N1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 a5 Kc2 d5 g4 e5 b4 h5 Kb2 d3 c5 d4 b6 e4 b7 d2 b5 e3 b6 a4 c6 e2 c7 e1N Ra2 h3 Qc2 d1R Qc3 a3+ Ka1 h2 Qh3 h4 Bc4 d3 Be6 Bh6 Qf1 h3 Rg2 a2 Ba3 Rh7 Bc4 Nc6 b8B Be6 c8Q Ra5 b7 Na7 Bc7 Rg7 b8Q Qd4+ Qb2 d2 Bd3 Rd5 Qb7 Nc8 Qc3 Rc1 Qf2 Qe5 Qc5 Nc2+ Kb2 a1N Qa5 Nb3 Bd8+ Nce7 Ka2 Nb4+ Kb2 Nc5 Ka1 Kf7 f6 Rf1 f5 Be3 g5 Na4 Qd4 Rf4 Nc3 Qb8 Nce2 Rf3 Qbb6 Nc8 Qc3 Rf4 Nf3 Qe5 Rf1 h1N Nfg1 h2 Qb7+ Bd7 Rc1 Ng3 Rc2 h1R Ra2 Kf8 f7 Rh6 Rc2 Be6 Rb2 Rgg6 Ra2 Kg7 f6+ Kh7 Rb2 Rf5 f8Q+ Rg7 f7 Kg6 Rb3 Nc6 Rb6 Nb4 Rd6 Kh5 Qe8 Kg4 f8B Kh4 Qef7 Qd4 Rd7 Nh5 Bc5 Qc4 Rd6 Qb3 Qc6 Qc2 Qcb7 Qb2+
3b3r/Rr2bq1p/B4R1N/BQ1r1r2/1P5k/K1Br2nN/b1R1Rnb1/B1Q5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kf6 Kc2 Kg5 Kb3 a5 g4 c5 e4 f5 e5 c4+ Ka2 h3 b4 c3 b6 c2 d6 h2 e6 a4 d7 a3 e7 Nh6 e8R Ra7 d5 Be7 d6 Kh4 b7 f3 g5 f4 g6 f2 g7 f3 g8R Nf5 Nc3 Ng3 Ne4 Na6 b8Q Rb7 Rg6 Nc5 Nf6 Nd3 Bd2 c1R Ng8 Qc7 d8B Rc5 d7 Rd5 Rf6 Qf4 Be2 f1B Ba5 f2 d8B Be6 Bc3 Bg2 Nh6 f1R Nh3 Nf2 Qc1 Qc7 Kb3 a2 Ba6 Rfd1 Rg1 h1R Ka3 R1d3 Re1 Rf1 Re2 Bg8 Rc2 Qd7 Bdc7 Bd8 Ree2 Qf7 Be5 Be7 Rb1 a1B Qe8 Bd8 Qb5 Be7 Rb3 Bd8 Bd2 Bd4 Bc3 Bc5 Ba1 Bce7 Bec3 Nfh1 Rbb2 Rff5 Ra2 Bf8 Re7 Nf2 Rc7 Bc5 Re2 Bce7 Rac2 Rb6 Ra7 Rb8 Qd2 Rb7 Qc1 Qf8 Kb3 R5d4+ Ka4 Ba2 Ka3 Qf7 Qd2 Rdd7 Qc1 R7d5
K2QQ2n/1BnPB1nr/3b1Rq1/1n6/3r1N1N/1RnRR3/3N2p1/1Nqkn2b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 f4+ Kd2 c3+ Kd3 a3 Kc4 g4 h7 c2 b6 f2 Kb5 f3 Bd3 f1N Rh5 a2 Nc3 f2 Bg5 c1N Rh3 g2 Nb1 g3 Nf3 g1N Nfd2 Na6 b8R Nf3 b7 Nc7+ Kb6 Nh6 Ba6 Qe8 Bd8 Qg6 e5+ Kd7+ d6 Ke6 d7 Kd5+ e6 Bd6 e7 Nf7 e8Q Ne2 Bh4 Nc3 d8N Ne1 Ne6 Ne3 Be7 f1Q Rh6 Bd7 Rd8 Bc6 b8R Nf5 Bb7 Ra4 Rd7 Rb4+ Ka7 Ng7 Rdd8 Qg4 Rf6 Qg6 Nb3 Kc4 d5 Qf4 N3d2+ Kd3 Rd7 Qf1 Nf4+ Ke3 Rdd8 Rd4 Rd7 Ba3 d6 Bh1 Ba6 g2 Rb3 Kf2 Bb7 Bb4 Qg4 Ke3 Qg5 Qc4 Rd8 Kf2 d7 Bd6 Ra8 Qc5+ Kb8 Qa3 Ra7 Qc1 Raa3 Rg8 Qa5 Nh8 Qa8 Rf8 Ka7 Rf7 Qad8 Nf3 Kb8 Ke1 Ka7 Kd1 Kb8 Na4 Re3 Nc3 Rb3 N7b5+ Ka8 Ng5 Na3 N5e6 Rab1 Ne2 Rbd3 a1N Rbb3 Nec3 Nab1 Nc2 Qa5 Ne1 Qb6 Rf8 Qbd8 Nf7 h8N Nec7+ Kb8 Qh6 Nhg6 Rh8 Nh4 Rh7 Re4 Nh8 Ree3 Na3 Ka7 Qh5 Kb8 Qg6 Ka7 Nab5+ Kb8 Na6+ Ka8 Nac7+
Q1N3N1/2p2BB1/Rb1N1bn1/1P1RBnnK/4q1rN/4r1n1/1b1QB3/4nbk1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 h4 Kd6 b4 Ke5 e4 Kd4 d6 g5 h5 f5 b6 a5 h6 f3 Kg3 f4+ Kf2 a4 e5 a3 b7 g3+ Ke1 a2 e6 g4 b5 f2+ Ke2 g2 d3 g3 Kf3 Be7 Kg4 f3 d7 Na6 b8N Qe8 d8N Bf6 h7 Nb4 Bh6 Nc2 Na3 Ra4 Nc4 Ne7 Rh5 Ne1 Nb7 Ng6 Be2 f1N Bg7 f2 Nb6 Ke3+ d4 Bd7 Nf3 g1N Nc6 g2 Rc5 Ng3 Ne7 f1N Ng8 Kf2 Qd2 Nh3 Nc8 g1B Rg5 Bc6 e7 Nh1 Rc5 Be4 d5 Nfg3 d6 Nf5 d7 Ng5 Rd5 Kg2 Nbd6 Bb6 d8Q Ra3 Na7 Re3 Qa8 Kf2 Nac8 Kg2 Rb1 a1B Rb2 Kf2 Ra2 Bab2 Ra6 Kg2 Rd4 Qc6 e8B Qc2 Rd5 Qc4 Nh2 Kg1 Bf7 Qa4 Ne8 Qc2 Ned6 Bg2 Nf3+ Kf2 Ra3 Bf1 Ra6 Qd3 Nh6 Rhe8 Kh5 R8e4 Nh4 Rg4 Ng8 Kg1 h8B Be7 Be5 Bf6 Bg7 Qb1 Qb7 Qe4 Qa8 Nhg3+
1r3RNR/n1k1K3/r1B5/NnQ1r2r/1P3b2/nNb1R1qR/QN2p2B/n6b w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 h5 g4 e3 d4 e2 f4 e1N b4 c4 d6 h3 d5 e6 f5 h2 g5 h4 b6 a4 f6 h3 b7 c3 f7 c2 g6 a3 g7 a2 Qe2 Ra6 Na3 Qh4 Bg2 Nh6 g8N Nf5 Nf3 Nd4 Bf4 c1B Nc4 Nb5 Nd4 Nc2 Nb3 Qg3 Kf6 e5 Nb2 Nc6 b8Q e4 Qb6 e3 Qc5 Bb7 Re1 Kd8 d7 h1R Be5 Bd6 f8R+ Kc7 d8N h2 Ke6 Ba8 Nb7 Nca3 N7a5 Bd2 Rac1 a1N Rc3 Rf1 Bf4 h1R Be4 Qg2 Bh2 Bf4 Kf6 Qg3 d6+ Kd7 Bg2 Nca7 Be4 Rh5 Bf3 Re5 Rd3 Re8 Bc6+ Kc8 d7+ Kc7 d8R Bc3+ Kf7 Re5 Qc2 Rfg1 Qb1 Bb7 Qa2 e2 Re3 Rg2 Rf1 Rgg1 Rff3 Rd1 Rde8 Rd8 Kf6 Rb8 Rd8 Qg4 Rh3 Qg3 Kf7 Rh5 Ke7 Rd1 Rd6 Rdd5 Rh6 Rdg5 Rh8 Re5+ Kf6 Bc8 Kf7 Be6+ Ke7 Bd5+ Kf6 Bh1 Kf7 Reg5 Ke7 Re5+
1N6/1Nr1R1bB/1nB1Rq1B/4nQ1b/1PBN1bbK/4rr2/1p1n4/NQ1r2k1 w - - 0 1 illegal: No proof kernel
1Q2n2b/n1nQB1rB/1r1N1R2/QR6/pb1NbNbk/nK3Q1P/6rq/5N2 w - - 0 1 illegal: No possible last move
q2k3n/N1r4r/3n2rN/Qp1Kb3/RPn5/b2bR2N/B3QQnN/1BQ2r2 w - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 Bb2 a3 Ba6 axb2 Bc4 Qd6 Bf1 Qd8 Ke2 b5 Ke3 h5 Kd4 h3 f4 e6 g4 c6 a4 h2 b4 h4 g5 h3 f6 Ra6 d6 Rh6 a5 Rb6 f5 Rh8 f7+ Kd7 f6 Bg7 f8Q Rh6 g6 Rb7 a6 Rc7 a7 Na6 a8Q Ne7 Qe2 Nc5 Qa5 Nb7 Ra4 c5+ Ke5 c4 d4 c3 d5 c2 Nd2 c1B Ndf3 Bh8 g7 b1N g8B Rg6 Qh6 Ba3 Qc1 Nd2 Bf7 Qf8 Bg2 Kd8 d7 Nd6 Bg8 Rg7 f7 Ng6+ Kd4 Qe8 f8Q N2c4 Qff4 Qf8 Qfe3 Bb7 Q3f2 Bc6 Kc5 e5 Bf1 e4 Bf7 Ke7 d8N e3 Kd4 Bb7 Nc6+ Kd7 Bg8 Qa8 Na7 Kd8 Be6 Bc6 Bf5 Bd7 Bb1 Bf5 Ba2 Bd3 Bg2 Nb7 d6 Rh7+ Kd5 Be5 d7 Nh8 Bf1 Rg7 Bb1 Rg6 Bg2 Ke7 d8N Nbd6+ Nac6+ Ke8 Nf7 Kd7 Nh6 Kc8 Qed2 e2 Qa2 e1N Qae2 Qb8 Na7+ Kd8 Nd2 Qc8 Nf1 Qa6 Be4 Ng2 Ba2 Qc8 Nf3 Qa6 Ng5 Qc8 Rg1 h1R Nh2 Qb8 Re1 Rf1 Qh5 Qc8 Re3 Qa6 Qhe2 Qc8 Nhf3 h2 Nh3 h1R Nh2 Rhg1 Qfe1 Rf7 Bf5 Rf1 Q1f2 Rh7 Qed1 Be2 Bfb1 Bd3 Qde2 Qa8+
bn1B1b1N/K3bQ2/Nrrp2n1/1R1NBnr1/1P1Q2N1/1k6/5Bq1/1Br3Rn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 a5 Kc4 h5 Kc5 h3 b4 h2 c4 a4 g4 h4 f4 a3 b6 h3 f6 Ke6 f5+ Ke5 f7 d3 b7 a2 g5 d2 f6 Ra4 g6 Rh6 g7 Nc6 b8N Ra6 Nc3 Bb7 Bb2 Ba8 Bd3 e6+ Kb5 Kd4 c5 Bd6 f8B e5 f7 e4 Be7 e3 f8B e2 Rc1 e1R Bb1 Qe8 Bd8 Nge7 g8Q a1B Qf7 Re5 Bg7 Qg8 Nf3+ Ke3 Rf1 h1R Nh2 Kd4 Rf5 Rg1 Bf8 Qg2 Ng4 h2 Bg7 h1N Bf6 Re1 Bh4 Rg6 Rg5 Ree6 Re5 Ra5+ Kb6 Kc4 Na6 Nb8 c6 Rg5 Bf2 Rb5+ Ka7 Rb6 Rb5 Bc5 Qc2 d1N c7 Ne3 Qd2 Kb3 Nd5 N3f5 Bg7 Bad4 Be5 Rec6 Qf4 Bd6 Qe4 B4c5 Qd4 Re2 Rg1 Re1 c8N Rc1 Qg8 Ng6 Qe6 Be7 Nd6 Bf6 Nf7 Bf8 Nh8 d6 Qf7 B6e7
2bb1Nq1/rPpn4/QN2n2B/2R3R1/BkN2R2/R2K2r1/Q1n2b1N/2r2r1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kd6 d4 h5 Kd2 a5 e4 f5 b6 a4 b5 h3 b7 h4 e5+ Ke7 g5 h2 g6 f3 b6 f2 g7 a3 d6+ Kd7 e6+ Kc6 e7 a2 e8R h3 d5+ Kc5 d7 f4 d6 f3 Qe2 Ra4 Re5+ Kb4 Na3 Nh6 g8Q Qf6 d8N Be7 d7 Nf5 Qa6 Rh4 Nc4 Qf8 Ne6 Ng7 d8R Nd7 b8N Rg4 b7 Rg3 Kd3 Qf7 Bg2 f1R Nf8 f2+ Nf3 Ne6 Rg1 h1R Bh6 h2 Rc5 Rc1 Re8 Bd8 Re7 Qe8 Rf7 f1N Rf4 Ne3 Bf1 Ra5 Be2 Nc2 Bd1 Ra4 Rg2 Rf1 Qf7 Rh3 Rgg5 h1N Qg8 Rg3 Qf7 Nf6 Nbd7 Ra5 Ndb6 Nd7 Nh7 Qg8 Nf8 Na3 Bb3 Nc2 Ba4 Rce1 Rc1 a1B Rd1 Bd4 Ra1 Rc1 Ra3 Rg2 Nh2 Bf2 Qf6 Rgg1 Qa1 Rg4 Qa2 Rgg1 Na8 Rg2 Qd6 Ra7 Qa6 Rgg1 Nab6 Rg3+
KQN1brB1/Np2Nb2/2NQB2B/r1Pr3n/2R3rB/8/1q5b/R1n1n1kn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 h5 Kc4 d5+ Kb5 e5 a4 h4 f4 e4 g4 h3 c4 b3 g6+ Kf6 g7 e3 a5 b2 a6 h2 a7 e2 c5 e1N Na3 b1B Nf3 d3 Nd4 d2 Bh3 Qd6 Nc6 d4 Kb6 d3 Nb5 Qe5 Bb2 Ba2 g5+ Kf7 f6 Kg6 f7 Na6 Bc3 Bd6 f8Q Bd7 Qb8 Be8 Be6 Nf6 g8N Nh5 Ba5 Nb4 f5+ Kg7 f6+ Kg6 f7 Qb2 Rf1 h1N f8B Bh2 Bh6 Bb3 Rf2 Na2 Rf4 Nc1 Rc4 Ba2 Bc3 Bb3 Bf6 Ba2 Qf3 d1R Qd5 d2 Qdd6 Bb3 Bd5 Kf5 g6 Ba2 g7 Bb3 Bh4 Ba2 Bf4 Kg4 Be6+ Kf3 Bh6 Kg2 Nge7 Rf8 g8B Kg1 Qbc7 Rc8 a8N Rf4 Ka7 Rg4 Nb6 Rb8 Nbc8 Ra8+ Kb6 Ra5 Qb8 Bb3 Rb4 Ba2 Nba7 Bd5 Bf5 Bdf7 Bd7 Ned3 Bf5 Rf1 Be6 d1R Kc7 Rf5 Rc4 Ne1 Qa8 Rdd5 Kb8 Bg6 Nb5 Ra6 Qa7 Rf8 Ka8 Rb6 Qab8 Bgf7 Nba7 Ra6 Ne5 Ra4 N5c6 Ra5
2qq2k1/4r1B1/nq1N2N1/Rbbq4/3B1Q2/2npP1NN/Q2rRK1r/1BB3r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 c4 g5 h4 d5 b4 f5 h6 Kf7 c5 a5 b6 f3 e3 a4 h5 f2+ Ke2 a3 b7 f4 h7 a2 b5 g4 c6 f3+ Kd2 g3 h6 g2 b6 d3 c7 d4 Nh3 g1R Qe2 Ra7 Nc3 Ne7 Ne4 Na6 b8B Bd7 c8N Bb5 b7 Nd5 Rh2 Bc5 Be5 Nc3 b8Q Re7 Ng3 Kf8 Bg2 f1Q Nd6 f2 Be4 Qg2 Bf5 f1Q Bg6 Rg8 h8N Qf6 h7 Qd5 Qc7 Rg2 Ke1 Kg7 Bf5 d2+ Kf1 Rg1+ Kf2 d1R Ng6 Rd2 h8B+ Kh7 Bg7 Rh8 Qb8 Kg8 Rg2 Qfe6 Bb1 d3 Bd4 Rh4 Nc8 Qeb6 Qf4 Rh8 Nd6 Rh4 Ng5 Rhh1 Nh3 Rh2 Qe4 Qc8 Nf8 Rc2 Qe5 Qa7 Ng6 Rhh1 Qe4 Qab7 Kf3 Rb2 Qc2 Qbc6 Qb3 Rd2 Re2 Q6c7 Kf2 Qc6 Qf4 Q6b7 Bc2 Qbc7 Rb1 a1Q Qa4 Qaa2 Ra1 Qdb7 Qa3 Qad5 Bb1 Qbb6 Qb2 Q7d7 Ra5 Qdd8 Qa2 Rh2+
2qrN2K/2QQq1RB/2N2q2/rb2Q2q/3np3/r1Bnk1B1/B3P3/Qb3Rr1 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Rh3 Bh6 Rh1 fxg4 Bf4 g3 Be3 g4 Bc1 Bg5 hxg5 Kf8 Rh6 Kf7 Rh1 Ke8 Kd2 Kf7 Kd3 Kg6 Ke4 d5+ Ke5 a5 b4 h5 c4 h4 f4 d3 b6 g2 b7 d2 c5 e6 b5 d4 c6 d3 c7 a4 b6 h3 Bb2 a3 Nc3 a2 Ne4 h2 Nf6 g3 Ne8 Ra3 Bc3 Rh5 Nf3 g1R Bh3 g2 Nd4 Nh6 Nc6 Na6 b8B Nb4 b7 Bd7 c8Q Qe7 Qc7 Nf5 Qe1 Nd4 f5+ Kh7 f6 Kg6 f7 d1B f8Q d2 Qf3 Bc2 Qd5 d1R Qf1 Bb1 Bf5+ Kf7 Qe1 Rd2 Bh7 Nd3+ Ke4 Rd1 Qb5 e5 g6+ Ke6 g7 Rf1 Rg1 h1Q Qa4 Rhf5 Qd2 Qh5 Qaa5 Rfe1 Rf1 g1Q g8B+ Qef7 Qa4 Qgg6 Rg1 Qf6 Rg7 Rg1 Qa7 Qd8 Qb2 Qc8 Qb5 Bc2 Qba4 Rd2 Rf1 a1Q Qb5 Rd1 Qb1 Qb2 Qa1 Bb1 Qd8 Qb4 Qg5 Qg6 Na5 Qe7 Bd6 Qh5 b8Q Ba4 Nc6 Nb5 Qd4 Rd2 Qc7 Nb4+ Qd3 Rd1 Qf4 Rd2 Rg4 Rg5 Bc5 Rf5 Bf2 Rd1 Bg3 Rg5 Ke3 e4 Qdd8 Rd7 Qf6+ Kd5 Kf4 Qfe6 Qg7 Kc4 Qh8 Rgd5 Qhe5 Q6d6 Rg5 Nd3+ Kf5 Qdh6 Qd6 Qhg7 Q8c7 Rd8+ Qcd7 Nc7 Bf7 Ne6 Q6c7 Ra5 Bfg8 Bb5 Bf7 Qh1 Bfg8 Qh8 Kg6 Qf3 Kh6 Qhf6+ Rg6 Kb3 Bf7 Kc2 Bfg8 Nd4 Bf7 Qh4+ Kg7 Qhh5 Kh8 Qff5 Rg7 Qff6 Rf4 Kd1 Ba2 Kc1 Rf1+ Kc2 Bb2 Kd2 Bc3+ Ke3
K1Q1B2N/b2N4/1RQq4/Bb2P3/2nprQr1/3Q1nbr/r1b2q2/B1R2B1k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kh4 c4 a5 e4 g5 b4 f5 c5 f3 b6 f2 c6 f4 h6 a4 h7 a3 c7 f3 b7 a2 b5 g4 b6 g3 Ne2 g2 Na3 Kh3 Nc4 d3 Bd2 Nh6 Rb1 a1B Ne5 Bc5 Ba5 Nc6 b8Q d2 b7 Nd4 Rb6 Ng4 Qa4 d1R Qc6 d6 Nd7 Re1 Qa7 Qf6 b8Q Ne5 Qa6 Nc4 Qab5 Ba6 c8B Qg6 Qb3 Bb5 Qd3 Ba4 Ba6 Bc2 Bb5 Bb2 Qbc7 Bc1 Qb8 Bf4 Qbc7 Bg3 Nf4+ Kg4 h4 g1R h5 Re2 Bb4 Ra2 h6 Qf6 Ng6 Re1 Bg2 f1B Ba5 f2 Qb8 Be2 Bf1 Nf3 Qf8 Rg2 Rg1 Qd8 Qf4+ Kh3 Ba4 Kh2 Bb5 Re8 h8B Qe7 Bg7 Rh8 Ba1 Rh7 e5 Qf8 Ra6 Ba7 Rb6 Rh8 h7 Qb8 Ke6 d5 Ba4 d4 Kd5 Qc7 Kc5 Qd8 Kb5 Qe7 Ka6 Qa3 Kb7 Qd6 Qc3 Bed3 Qb3 Re4 Qc3 Rg8 Nh8 Rg4 Ka8 Rh4 Qcd2 Rh3 Qde3 Nb2 Qd2 Bb5 Qd3 Nc4 Ng6 Rh5 h8Q Rh6 Qhc8 Rh3 Be2 f1Q Nh8 Qf2 Rc1 Rg1 Bf1 Kh1 Bb3 Ncd2 Bf7 Nc4 Be8 Bh2 Rb7 Rg4 Rb6 Bg3
1RB5/bQKrpBb1/2BnqPb1/R3NNk1/2N1n3/2N2Q1q/3r1b2/2B1qq2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 c4 Kg6 b4 a5 g4 h5 f4 d5 c5 h4 c6 e3+ Kd3 e2 b6 e1B b5 h3 b7 a4 b6 h2 c7 a3 Nc3 a2 Nf3 Nf6 Nd2 Qd7 Qf3 Nc6 b8Q Ra5 b7 Na7 Bg2 Nb5 Nc4 Qe6 Rf1 Bd7 c8B h1Q Qc7 Qh5 b8N Bf2 Nc6 Ne4 Qb7 Nbd6 Rd1 Be8 f5+ Kh7 f6 Kg6 Rd2 Bg7 Rb2 Qh3 Rb6 Bf7 Bh1 Rd8 N6e5+ Kh7 Rb5 Bg6 Rab1 Ra8 Ra5 a1B Rb6 Bb2 Bg2 Ba3 Rb3 Bc5 Rb2 Bf7 Rb4 Ba7 g6+ Kg8 g5 Rb8 Kc2 d3+ Kb3 d2 Ka4 d4 Rbb5 d1Q+ Kb4 Bh8 g7 Kh7 g8N d3 Nh6 d2 Nf5 Bg7 Rb6 Qf1 g6+ Kh8 Rbb5 d1Q Bh1 Qde1 Bg2 Bh6 g7+ Kh7 Rb6 Bg6 g8B+ Kh8 Bh1 Bg7 Bf7 Kh7 Ka4 Ne8 Kb5 Rd2 Bg2 N8d6+ Kc6 Ra8 Kc7 Rb8 Nh4 Kh6 Nf5+ Kg5 Qd3 Nc5 Bc6 Nce4 Qf3 Ra8 B8d7 Rd8 Bc8 Bh8 Qa6 Bg7 Rb8 Qfg2 Qb5 Qgf1 Qb7 Rd7+
1qQ1N1K1/Pq3p2/2R1RBB1/q5q1/1r1b4/4Rr1n/1Rbk1BB1/1n1rNQr1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 b5 h4 g5 a4 c5 d6 b3 e4+ Kb4 h6 c4 h7 c3 a5 g4 d5 b2 h5 g3 d7 f3 h6 g2 a6 c2 a7 f2 d6 Nf6 Bd3 f1Q Nc3 b1Q Rh2 Qa5 d8B Qa6 d7 Qf2 Nf3 g1Q Ne1 Nh5 Ra3 Qa5 Bf6 Qfb6 d8R Na6 Rd6 Rb8 Be3 c1R Re6 Nc7 Bf2 Bg7 Qe2 Nf4 Qf1 Re8 h8Q Nh3 h7 Rd1 Qf8+ Re7 h8R Nd5 Rh6 Qb7 Qg8 Bd7 Qc8 Qg5+ Kd6 Bc6 e5 Bh8 Ne4 Nc3 Rg6 Qb3 Rg2 Nb1 Rh6 Rc7 Rg6 Bd7 Ke7 Rc3 Kf8 Be8 Bc2 Rf3 Kg8 Bd7 Rc6 Bf5 e6 Qb2 e7 Qb3 Ba1 Bd4 e8B Qb2 Nf6 Bd3 Ba4 Bc2 Re6 Qb3 Bc6 Qb2 Bb3 Kc3 Ne8 b4 Ba2+ Kd2 Rae3 b3 Rh2 Rg3 Bg2 Rf3 Rc6 Qbc3 Rce6 b2 Bd5 Qcc7 Be4 Qa8 Rc6 Rb4 Bd3 Qcb7 Be4 Qh5 Rge6 Qab8 Bg6 Qhg5 Nd3 Na3 Ne1 b1R Bb2 Bc5 Bf6 Bd4 Rb3 Ra1 Rb2 Nb1 Re3 Nf4 Rh4 Nh3 Rhe4 Rg3 Ree6 Ra3 Bf3 Rg1 Bg2 Rab3 R3e5 Rg3 Re3 Rf3
1rb1bkBQ/PB1pN2q/nq3BQb/bQq2B2/q7/1r6/1K2R2n/1Q3NR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 b5 c4 h5 Kc2 e5 g4 e4 a4 d3+ Kb2 b3 f4 h4 c5 d2 c6 b4 c7 e3 g6 h3 g7 e2 f6 e1B f5 h2 f7+ Ke7 a5 Nh6 g8Q Ra6 g5 Ng4 g6 Rh4 g7 Rh5 f6+ Ke6 Nf3 Rh3 Rg1 h1B Bd3 Nh2 Nc3 Qe8 Nd5 Qe7 Ra2 Rb6 a6 Qc5 a7 Na6 Ne7 Rb8 Bf5+ Kd6 Qc2 d1Q Nd2 Bf3 Qb1 Bh5 Nf1 Qg4 Qh7 Bg6 g8B Bh6 f8Q Be8 Bg5 Bc3+ Kc1 b2+ Kc2 Qgc4 f7 Qh4 Bf6 b3+ Kd1 Re3 Qg6 Qa4 Qfg7 Rg3 f8Q Ba5 Qh8 Rc3 Qff7 Rg3 Qc4 Re3 Qbc1 b1Q Re2 b2+ Qb3 Qbe4 Qcc2 Qb7 Qb5 Rb3 Qb1 Qbb6 Qc2 Bb7 c8B b1Q+ Qc1 Qbe4 Qa1 Qe6 Qb1 Qf7 Qc4 Qh7 Kc2 Bc6 Bb7 Bb5 Bbe4 Bc6 Bf3 Bb7 B3e4 Bc8 Bb7 Bg7 Kc1 Bh6+ Rg5 Qcb5 Nd5 Re3 Rg1 Qbb4 Qb5 Q4c5+ Kb2 Rd3 Nc7 Re3 Bg7+ Ke7 Bf6+ Kf8 Nd5 Rh3 Ne7 Rb3+
1b1N2Nr/Q1Q2K1R/2Q4r/2BR4/2Qr2b1/1Rn1Pq1R/2Bqnpqp/2n4k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 a5 b4 c5 g4 h3 e3 h4 b6 a4 b5 h2 b7 a3 g5 a2 g6 f3 g7 f6 b6 c4 Ne2 f2 Nd2 h3 Qc2 c3 Ba3+ Kd7 Kf5 Rh6 d6 Kc6+ d7 Kd5 Bc5 Nc6 b8R Bd6 b7 Qa5 Qc1 c2 Ne4 Qd2 Rb1 a1R Rb3 R8a4 Bg2 Rh8 Kg6 f1Q d8Q f5 Kf7 f4 Qc7 Nge7 g8Q f3 Qe8 f2 Nf6+ Kc4 d5 Bg4 Bf3 Qg2 Nf4 Nd4 Be4 Ne2 Qec6 Be5 d6 Nd5 d7 Ndc3 Qf1 c1N d8R Ra6 Bb1 R1a4 Bc2 Qf3 Rd5 Qg2 Rg1 h1Q Ne6 h2 Nd8 Qf3 Rg3 Qhg2 Rh3 Rb6 Qc8 Bd6 Ra8 Bb8 Q8c7 Rab4 Ra5 Ra4 Rdh5 Rab4 Rh7 Ra4 Bd1 Kd3 Rab5 Rd4 Ra5 Ba7 b8Q Ra6 Qbb6 Bb8 Qba7 Rb6 Bb4 Ra6 Rd5 Rb6 Bc5 Ra6 Kg7 Rb6 Ng8 Ke4 Qca8 Rh6 Qac6 Qfg3 Bc2+ Kf3 Qe1 Qh1 Kf8 Kg2 Kf7 Qg1 Qd1 Kh1 Qf1 Qf3+ Bf5 Nf4 Qc4 Qgg2 Bc2 Nfe2+
2q4q/2bn4/qN2N2B/n3B2N/b1B1PpR1/2KRN1nk/2p2Q1r/Q4rBb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 e4 f5 g4 a5 b4 c5 d6 Ke6 d7 f3 d5+ Ke5 b6 Kf4 b5 Kg3 d6 c4 g5 f2 g6 h3 g7 a4 b7 h4 b6 h2 Ra3+ Kf4 Kc3+ Kg3 Bh6 f4 Nd2 h3 Qa1 Nc6 b8B Na5 b7 Nf6 g8Q+ Bg7 Rb3 a3 Ne2+ Kg4 Qf8 a2 Ng3 Ra7 Bd3 f1N Rg1 h1Q Nh5+ Ng3 Nf1 h2 Ne3+ Kh3 Ra3 Qc7 d8N Bd7 Ne6 Ba4 d7 Qc8 d8B Nd7+ Be5 Bf6 Bc7 Bd8 Bb6 Bc7 b8N Rb7 Bbd4 Rb1 Qc5 Rf1 Qb6 Rh7 Qbb2 Rh8 Qf2 Rh7 Kb4 c3 Bc4 c2 Rd3 Rh8 Kc3 Rh7 Nc6 Rh8 Nb4 Rh7 Nbd5 Rh8 Qc1 a1Q+ Qb2 Qa2 Qa1 Qa3+ Kd2 Qd6 Kc3 Qda6 Ba7 Qf3 Bc5 h1B Nb6 Qg4 Rg2 Qg7 Rg1 Rh7 Bcd4 Qgh8 Bc5 Nf5 Rg4 Ng3 Bhf8 Bg2 Ned5 Bb5 Qf3 Rg1 Nhf6 Rf1 Bg1 Ba4 Qf2 Bh1 Bg7 Rh4 Bh6 Rh5 Qfe1 Rh4 Nh5 Kg2 Qe3 Rh2 Qf2+ Kh3 Ne3 Qg7 Nbd5 Qgf8 Nb6 Qh8
R2Rb3/3b2n1/n3n3/1k1pRb1r/N1q3q1/QNB1r1N1/Np1P1RK1/q2B1Q2 w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 exf5 g5 c3 gxh4 Bb5 b3 Bb2 Bg7 Ba4 b5 Ba3 b4 Bc1 b2 Bb5 b3 Bf1 Be5 Rh3 Bd6 Rh1 Bb4 cxb4 Ra7 Rh3 Ra6 Rh1 Ra8 g4 h5 a4 e5 f4 c5 Kf2 c4 a5 h3 b5 h4 g5 c3 b6 e4 a6 e3+ Kf3 e2 a7 e1N+ Kf2 c2 g6 h2 g7 h3 b7 Nf6 Be2 Rh5 Nc3 b1Q g8R+ Ke7 Bb2 Nh7 f6+ Kd6 f5 Kc6 f7 c1Q f8Q Nc2 f6 Ne3 f7 Qg5 Bf3+ d5 Nge2 Nf5 Re1 Bd7 Ng3 Ng7 Re5 Qa2 Qe7 Nf8 Qf1 Nfe6 f8R Qa6 Bd1 Qc4 Ra5 Qa1 Na2 Kb6 Ra3 Kb5 Bd4 b2 Rff5 h1B Rd8 h2 Rf4 Nc6 b8N Be8 Nd7 Qg4 Nc5 Nb8 Rf6 Bd7 Qd6 Be4 Rff8 Bd3 Kg2 Bg6 Rf2 Bge8 Ra4 Nc6 Qf8 Nb4 Qf3 Kb6 Qb3 Rb8 a8N+ Kc6 Ra7 Na6 Qa3 Rb3 Nb6 Kb5 Nba4 Rc3 Raa8 Re3 Bc3 h1B+ Kg1 Be4 Nb3 Bd3 Kg2 Bf5
3R4/1b2N3/nQq4k/rP2b1qq/1RBQ1N1n/bB1NpN2/nK1pB3/4B2r w - - 0 1 illegal: No possible last move
2bQq1N1/6Q1/4bQR1/1p3N2/1K1Bnp2/RPn4k/rNrb1Qq1/rnNB4 w - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 Qc2 a3 Qb2 axb2 h4 Kd7 e4 b5 a4 g5 d4 c5 Kd2 f5 Kc3 f3 e5 f4 d6 Ke6 d5+ Kf5 e6 Kg4 a5 c4 h6 f2 a6 Qe7 a7 Rh7 h5 Na6 d7 Rh8 d8Q Nc7 h7 Nf6 h6 Nd7 d6 Qg7+ Kb4 c3 e7 c2 e8N Be7 Nc3 b1N Na4 Rb8 a8Q Qf7 Ra3 Nb6 Nb2 Nc4 Qa7 Ncd2 Ne2 Ra8 Ng7 Qe8 Nf5 Ne4 Be3 c1R Bd4 Rc2 Nc1 Bf8 Bd3 f1B Rg1+ Kh3 Be2 g4 Qf6 g3 Bd1 g2 Qc5 Ra6 d7 Bc4 d8Q B4e6 Qg7 Rg8 h8N Be7 h7 Bh4 Bc3 Be1 Nf7 Bd2 N7h6 Ra5 h8Q Ra6 Rf1 g1Q Qf2 Qg2 Rg1 Ra8 Qgf6 Rg3 Qg8 Re3 Qgg7 Re1 Ra1 Ra2 Ng8 Qf3 Rg6 Qg2 Qge7 Na8 Qeg7 Nb6 Qdc7 Na4 Qcd8 Be3 Be5 Nac3 Bd4 Bd2 Nc4 Rab2 Ra3 Ra2 Nb2 Be3 Be2 Nbd2 Ncd3 Rea1 Nc1 Ndb1 Bd1 Bd2
2kN1q1b/2B2B2/1QKR1pQb/B4n2/rp1RPqN1/1n2rNr1/b4B2/1n1N4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Ke4 c5 d4 g5 h4 f3 a4 b3 h6 b4 a5 c4 d6 g4 Kd5 b2 e4 f2 a6 g3 h5 g2 h7 c3 a7 c2 h6 Qh4 Be3 c1R Qh5 Qh3 Qg6 Re1 Ra6 Be7 Bc4 f1Q Nc3 Kd8 d7 Kc7 d8B+ Kd7 Rh2 b1N Nd1 Qg3 Rb6 Qf6 Nf3 g1B Rd2 Bh2 Bf2 Na6 Re6 Rb8 a8Q Rb7 Qb8 Re3 Bc7 Ra7 Bd8 Ke8 Kc6 Nc5 d5 Ra4 d6 Qgg5 Bd5 Be5 Ba5 Qgf5 Rd4 Qf4 Bd8 Qg7 Bc7 Qf8 Ba5 Qf6 Qc7 Qf5 Rf6 Be6 Qb6 Bd8 d7+ Ke7 Bb3 Qf4 Rf5 Bg7 Rf6 Bc7 Ba2 Be5 d8B+ Ke8 Bc7 Bb3 Rfd6 Ne7+ Kb5 Nf5 Kc6 Rd3 Qh5 Rg8 h8N Bc4 h7 Bh6 Ng6 Re3 h8N Beg7 Qg4 f6 Nf7 Bh8 Nge5 Bb3 Qh5 Rg3 Ng4 Bc4 Qg6 Ke7 Bb3 Be6 Bc2 Ba2 Bb3 Ke8 Bc4 Nb3 Nd8+ Ke7 Bf7 Qg8 Kd5 Qf8 Rc6 Kd7 Rd6+ Kc8 Kc6 Qg7 Qc5 Qg8 Qb6 Qf8
rR1nN1nQ/1q2rR2/1R1PR2b/2q3B1/p6N/pNn1rbN1/2k1B3/5qKQ w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 f4 Kf7 Kf2 Kf6 b4 e5 g4 c5 d4 a5 d6 h5 d5 e4 b5 c4 b6 h3 d7 h2 b7 a3 d6 h4 Ne2 c3 Nd2 h3 Rb1 a4 Rb6 c2 Nb3 Bh6 Ng3 Qf8 Be2 Nc6 b8R Nd8 Re1 h1Q Qd5 Qf3+ Kg1 e3 Qe4 Bb7 g5+ Kf7 g6+ Kf6 g7 Rh7 Bd2 c1N Qc6 Qh5 Qh1 Na2 Bc1 Nc3 Bd2 Nc6 d8Q+ Qe7 Qc8 Nd8 Bc1 Kf7 f6 Kg6 f7 Bf3 f8R Qb7 Rf7 Qc5 f5+ Kg5 f6 Kf4 Rd7 Ke5 f7 Kf4 f8N h2+ Kf1 Ke5 Ng6+ Kd5 Nh4 Ke5 Qg1 h1Q Rf7 Qh3+ Qg2 Kd5 Kg1 Ke5 Qh1 Kd5 Bd1 Kc4 Bd2 Kd3 Be2+ Kc2 Bc1 Ne7 g8N Rg7 Nf6 Ng8 Ne8 Rh7 Rf6 Re7 Re6 Nf7 Rf1 Nd8 Bc4 e2+ Rf2 Kd1 Bg5 e1R+ Bf1 Re3 Be2+ Kc2 Rf1 Be4 Rf8 Bf3 Rf7 Qd4 Qc5 Qb4 Qd4 Qc5 Qh8 Qf1+
B3K1b1/2NQPb1R/p2B1bR1/4n1pR/n2QR3/6qn/r1krq3/1N1q1BB1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 g5 h4 d5 e4 f5 c5 d3 h6 d2 h5 a6 c6 f3 h7 f4 c7 d4 b6 d3 b7 f2 h6 f3 Ra4+ Kc5 b4+ Kc4 b5+ Bb4 b6 Bg4 c8B Ne7 Kf6 Bh5 e5 Nbc6 b8R Bf7 b7 Qd6+ e6 Ng6 Ne2 Nf4 Nec3 Ne5 Nd5 Nh3 Nc7 Re8 h8Q Rf8 Ra2 Bc3 h7 Kb4 Rc2 Kb3 Bd7 Ba1 Re8 Rd8 b8B Qa3 Bc6 Rd5 Be2 f1Q Ba8 f2 e7 Qe1 Bf1 Qe2 Qg7 Ra5 h8R Bc3 Rc8 Rd8 Rh7 Rd7 Rg8 Bd4 Qe1 d1N Rc4 Nb2 Be3 Na4 Qd1+ Kb2 Qh8 d2 Rg6 Qad3 Kg7 Bc3 Bc5 Qg3 Kf8 Bg8 Ke8 Bd4 Qe1 d1Q Qd2+ Kb3 Bb6 Bc3 Qd6 Kc2 Re4 Bb2 Qe6 Rd2 Qd7 Bc3 Bg2 f1B Bg1 Qee3 Qf6 Bfc4 Bf1 Qee2 Qb6 Ba1 Qbd4 Bb2 Nd5 Ba2 Bd6 Bc3 Nc7 Baf7+ Kf8 Rb5 Rh2 Rb2 Rh1 Ra2 Rh5 Bd5 Ke8 Bdf7+ Kd8 Qde1 Rhh4 Nf3 Qd5 Bf6 Rh7 Nf2 Qd4 Ne5 R1h3 Q1d1 R3h5 Bd5 Ke8 Nh3 Qb5 Bde6 Qd7 Bef7+
N3bb1k/q2p1KRn/P1B1BR2/6rp/nr1B4/b2r1q2/QR4B1/1NR3qQ w - - 0 1 illegal: No possible last move
2Qbb3/1np2Q2/1q1Qn1Qb/1Nq1p2P/1R1R2R1/qB1r2R1/2N3r1/1kB2n1K w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kd7 Kf2 Kd6 Kg2 Kc5 b4+ Kd4 h4 a5 b6 e5 f5 g5 d3 e3 d6 e2 b5 e1B h5 a4 f6 g3 b7 g4 b6 a3 d7 a2 f7 Nh6 Qe2 Nf5 Na3 Kc3 d4 Bh6 f8Q Rg8 d5 Nd4 d6 Qf6 d8R Nd7 b8Q Ne6 b7 Ndc5 Rh4 Bd7 Qd1 Be8 Nc2 Ra3 d7 Bf2 Rb1 a1Q Nf3 Qg6 Kh1 g2+ Kh2 g1N Bc4 g3+ Kh1 Rb3 Qf7 Ne2 Nfd4 Qa3 Qc8 Be1 b8Q Nb7 Rg4 g2+ Kh2 Qf6 Qa7 Bed2 Qb6 Bdg5 Qd6 Rg6 Qg1 Ng3 Bd5 Kd3 Nb5 Rc3 Rbb4 Nf1+ Kh3 Rg8 Qgb6 g1Q Bb3+ Qd4 Kg2 Rg7 Kh1 Qf2 Qde7 Qc5 Qc6 Qb6 Qef8 Qfc5 Qfd6+ Ke2 Rg3 Rd3 Qe4+ Kd1 Qeg6 Bh4 Qfe7 Bf7 Rg8 Be8 d8R Bf6 Qef7 Be7 Qc6 Beg5 Rdd4 Bd8 Qgf6 Rg4 Qd6 Rg7 Rg1 Rg2 Rgg4 Rf2 R1g3 Rg2 Bb2 Kd2 Q6g6 Kd1 Bc3 Kc1 Bd2+ Kb2 Bc1+ Kb1
brnB1NB1/Qp3qN1/1N2P2k/br1Rp1nN/3R4/5q1n/q1KBb3/4Q1B1 w - - 0 1 illegal: Other
NqQ3B1/p2KB1R1/r3p2Q/3N1n1b/qQ2PbQ1/r1nb4/5Brk/1R3B1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kf2 Kd7 d4 Kd6 e4 f5 b4 c5 h4 e6 g6 c4 h5 c3 b6 g3+ Kf3 g2 b5 c2 g7 Ne7 g8B Nbc6 h6 Bd7 b7 Na5 b8Q+ Qc7 h7 Nc4 b6 Ne3 b7 Bc6 Qc8 Qb8 Nh3 g1R Nc3 Be8 Na4 Nd1 Nb6 Nc3 Rb1 Bh6 Be3 c1Q Bf2 Qc2 Rh2 Rg7 Rg2 Qa4 Rg5 Bh5+ Rg4 Qc7 b8Q Rg5 Qbb7 Rb8 Na8 Rg6 Qb5 Rb6 Qe2 Qb8 Qb7 Ra6 Qb4+ Kd7 d6 Kc6 d7 Bg5 Qbb2 Kd6 d5 Ke5 d8Q Rg7 d6 Rg6 Kg2 f3+ Kg3 Bf4+ Kh4 Rg7 d7 Rg6 Qb4 Rg5 Bg3 f2 Qc8 Rg6 d8B Rg7 Bg2 f1Q Bf2 Qh1 Bf1 Rg5 Rg1 Rg3 Qg4 Rg2 Bf7 Rg8 h8Q+ Rg7 Qh6 Rg8 Bc5 Ra2 Bf2 Ra3 Qd1 Rg2 Bg8 Bc1 Qg4 f4 Kg5 f3+ Nf4 Nf5 Be7 Bd2 Be3 f2 Nd5 Rh2 Bh3 f1B Bg2 Bd3 Bf1 Be1 B3c5 Bg3 Bf2 Rg2 Qh3 Bhe2 Qg4 Bf4+ Kg6 Bf3 Kf7 Bd1 Qb5 Bf3 Ke8 Bfe2 Kd7 Bd1 Qgg6 Bh5 Qg4 Be3 Qh4 Rh2 Rg7 Rg2 Qh3 Bg5 Ndc7+ Kf4 Qh4+ Kf3 Nd5 Bf4 Bb6 Nd4 Qg4+ Kf2 Bbc5 Kg1 Bb6 Kh2 Bbc5 Rc6 Qb4 Nf5 Bf2 Ra6+
n4Br1/4NRBb/QNN4B/b3K3/b2R2np/pPr2N1r/1k4bq/1B1Qb3 w - - 0 1 illegal: No possible last move
Bk1K1br1/nb4Pp/3NqrQ1/rQr3Q1/1B6/n1rp1B2/5R2/1QN1Rn1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 a5 c4 d5 e4 Kd7 b4 Kc7 g4 d3 g6 d4 e5 d2 g7 d3 c5 a4 b6+ Kb7 g5 a3 b5 a2 e6 Qe8 e7 Ra4 g6 Nf6 g8B Re4 g7 Na6 c6+ Kb8 b7 Nc5 c7+ Ka7 b6+ Ka6 b8Q Qd8 e8Q Re6 b7 Qd6 Be2 Nd5 Na3 Ne4 Rh2 Nb6 Nc4 Nc3 Qg6 Nb1 Ba3 Re5 Bd5 Qe6 Nd6 Rg8 Bb4 Na3 Qb1 d1R Rf2 Rc1 Bd1 Rc2 Ne2 Rc3 Bc6 Rec5 Nc1 Bd7 Qd8 Ka7 c8B Kb8 Be4 Bc6 Qdg5 Bd5 Bd7 Nc8 Bc6 Na7 Kg2 f3+ Kg3 f4+ Kh4 Qe5 Kg4 Qe8 Kf5 Qc8+ Kf6 Qd7 Rf1 f2 Bh1 f3 Re1 f1N Re2 Qh3 Rf2 Be4 Kf7 Bd5+ Ke8 Qe6+ Kd8 Be4 Rg2 f2 Bf3 Nd2 Rh2 f1R Rf2 Bd5 Qb3 Be4 Qc4 Bd5 Qb5 Be4 Rb1 a1R Na2 Bd5 Qa5 Qg4 Re2 N3b5 Be4 R5c4 Ba3 Rc5 Rbe1 Rf4 Nc1 Qe6 Bef3 Nf1 Rf2 Rf6 Qb4 Be4 Qb1 Ra2 Bb4 Ra5 Bd5 Na3 Bc6 Nc8 Bd5 Ka7 b8Q+ Ka6 Qb5+ Ka7 Qa4 Kb8 Ba8 Bb7 Qb5 Na7
1bBb4/1r1r2p1/n1rp2P1/3Nr3/1rR1B1Rq/1bB3RR/4Q1nB/N3QK1k w - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 f5 exf5 Nc6 d4 cxd4 g5 Nb8 Qg4 hxg4 b4 Kf7 c4 e5 h4 a5 f4 a4 c5 d3 h5 a3 f6 Ke6 b6 Kf5 h6 Ke4 h7 g3 f5 a2 b7 g2 c6 Na6 b8B Ra7 c7 Bc5 g6 Bb7 c8B Bc6 b5 Be3 b6 Qe7 b7 Bb5 f7 Bg5 f8Q Nh6 f6 Ng4 f7 Ne3 Bb2 Ba4 Ne2 Kf3 Nbc3 g1R Nc1 e4 Nb3 Rg4 Rc1 a1B Qe8 Rg8 Be2+ Kg2 h8Q Bf6 Bd1 d2+ Ke2 Qd8 Bc2 d1R f8R Be5 Rf7 Qh4 Rf3 Rf8 Nd5 Rf6 Qh5 Rc6 Qe6 Bf6 Bc3 Bd8 Rhh3 Kg1 Rf8 Ng2 Rff3 e3 Bh2+ Kh1 b8R Rb4 Be4 Rab7 Rfg3 Bb2 Na1 Bb3 Rc2 Rd3 Kf1 e2+ Kf2 e1R Qe2 Bc1 Qe5 Bf4 Ra8 Nb8 Ra4 Na6 Qe8 Bb8 Rc1 Red1 Rc2 R1d2 Kf1 Re3 Qe6 d6 Qe1 Rd7 Qg4 Rd1 Qe2 Rbb7 Rc4 Rb1 Rd2 Rb2 Rdd4 Rb4 Bf5 Re5 Rdg4 Rbb7 Be4 Bc2 Rc5 R2b4 Rc4 Bb3
6nQ/1npNn2r/B2R1Pp1/BbNRn3/1K2b1k1/NBN3q1/3n4/1rQ3bB w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 f4 Kf7 a4 Kf6 d4 Kf5 Kd2 b5 Kc3 e5 h4 e3 h5 g6 h6 e4 h7 e2 a6 e1N a7 e3 a5 e2 d6 g3 a6 g2 d7 Nc2 d5 e1N d6 Nc6 Rh5+ Qg5 d8N Nd3 d7 N2b4 Bd2 Nc5 Na3 Na5 Ne2 g1N Nc6 Bg7+ Ne5 Nab7 d8N Nf3 Ne6 Bh6 Qc1 Nb3 Nd7 Ne5 Nec5 Kg4 f5 Rb8 a8B Nbc6 f6 Nce7 a7 Qh4 Rb1 Be3 Kb4 Bg1 Nc3 Qg3 Be1 Nd2 Ra1 Nd6 Bd5 Ba6 a8B Rb6 Bb3 Rb7 Ka5 b4 Ra2 Rb8 Bh1 Nb7+ Ka4 Bd3 Rc2 Be4 Ba6 Bd3 Ba2 b3 Kb4 b2 Bb3 b1B Ra2 Nf1 Rd2 Bb5 Rd1 Be4 Rd6 Nd2 Rf5 Nh6 Rh5 Rhg8 h8Q Rg7 Rf5 Rh7 Rh5 Nhg8 Rf5 Nec4 Rfd5 Ne5 Bc4 Kh4 Ne2 Nd8 Ka5 Kg4 Bf2 Nf1 Be1 Bc6 Bc3 Rb2 Bb3 Bb5 Bb4 Nd2 Nc3 Bbd3 Ka4 Rb1 Ba5 Nb7 Kb4 Bb5
k1rQ1Q2/bp6/2B2n1B/r4NbN/nR2NnN1/B1P2Kp1/n2BRnb1/6q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 g5 a4 e5 f4 d5 h4 Kd7 f6 Kc6 f7 g4 a5 b3 a6 e4 h6 g3 h5 b2 h7 e3 f5 d3+ Kf3 e2 f6 e1B a7 d2 c3 d4 h6 d3 Rh4 Bh3 Bg2 Qd4 Ne2 Na6 Ra2 Be7 f8B Bf2 f7 Nc5 Nf4 Na4 Nh5 Bg5 Ba3 Kb6 f8B Nf6 Qf1 d1N Nd2 b1N Ne4 Bg1 Re2 Ne3 Bd2 Ned5 Qf2 Rc8 a8Q Nf4 Qb8 Rc5 Qd8+ Ka7 Bh1 Rg8 h8N Ra5 h7 Bf1 Ng6 Rh8 Bb2 Na3 Ne7 Nc2 Ba3 Nb4 Bh6 Na2 Nf5 Rf8 h8N Re8 Qd7 Ka8 Ng6 Rc8 Ne5 Qa7 Ng4 Qc5 Be1 d2 Qd8 d1N Bd2 Qb6 Qc5 Be3 Qcf8 Nf2 Rh2 Bh3 Bg2 Qb1 Rh1 Qa1 Rb1 Ba7 Rb4 Qg1 Ned6 Rc5 Ke3 Qf1 Bc6 Ra5+ Kf3 Qg1 Ne4 Bg2+
kbBNnbbQ/P1RNnq1r/2p1NB2/1Q6/1nb3N1/3bR1K1/p1r2Q2/Q7 w - - 0 1 illegal: No proof kernel
2rB4/rR1B2b1/1Br3R1/1N2pn1R/b2P2nQ/2q1pb1n/k1B1KR1Q/5Nb1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kd7 g4 Kd6 b4 c5 f5 e5 g5 h5 f6 a5 d3 h3 g6 c4 b6 h2 f7 c3 g7 c2 b7 a4 b5 Kc5 b6 Kb4 d6 Kb3 d7 a3 Qe2 a2 Nc3 h4 Be3 h3 Nf3 Nc6 b8Q Qc7 b7 Nf6 g8B Nd4 Bh7 Bg7 f8R Ra7 Nd2+ Ka3 Rb1 a1B Rb6 c1R+ Kf2 Rg8 Qa8 Rc2 b8R Bb7 Bg2 Bc6 Nf1 Ba4 Nb5+ Ka2 Rf7 Rc8 d8B Bb2 Qb7 Qc6 Qe7 Rc5 Bf3 Ng4+ Ke1 Rc2 R8b7 Ba3 Bf5 Bc5 Bd7 Qc7 Rf4 Nf5 Rg6 Bd4 Qg2 Qc4 Qf2 Qb3 Qg3 R2c6 Bd1 Qc3+ Ke2 Bb6 Bc2 Bc5 Rg1 h1N Qg5 Nhf2 Rh1 h2 Bd4 Ba3 B4b6 Bc1 d4 Be3 Rg1 h1B Qh5 Bg2 Rh1 Rc4 Rh3 R4c6 Qh2 Bh1 Rh4 Nh3 Rf3 Bg1 Rf2 e3 Qg5 Re6 Rh5 Rec6 Qh4 Bf3+
bB2R1qr/2bn2RB/3b1B2/1p1NnnNp/7N/B4r2/1n1P1NQ1/4krKQ w - - 0 1 illegal: No possible last move, all moves rejected
3NR1Q1/Q4np1/3b2k1/rn1bRRr1/p1Kb2B1/Pn2N3/q5bQ/2BRQr2 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 h4 f5 e4 Kf7 Ke2 b5 Kd3 a5 d6 a4 d7 b4 a3 g3 c6 g2 c7 f3 h5 f2 e5 f4 e6+ Kf6 h6 f3 e7 b3 e8R b2 h7 Kg6 Nh3 g1B Qe1 Bb4 Re5 Na6 Ng5 Qe7 d8R Bf5+ Kc4 Bd7 c8Q Bg4 d4 Qf7+ d5 Bh5 Qb8 Nc5 Ne6 Ra5 d6 Nb3 d7 Nh6 Be2 f1R Nd2 b1N Qa7 f2 Bg4 Nc3 Re8 Nb5 d8Q Bd6 Ra2 Rf8 h8Q Qg8 Qh4 Rf5 Qh2 Nf7 Nd8 Rg5 Ra1 Qh7 Qg8 Qh6 Bd7 Bf3 Bg4 Qh3 Ra2 Qg2 Rc2 Ba8 Rc3 Be4 Rf3 Bc6 Rff5 Bd5+ Kd3 Bc5 Nc4 Bd4 Qh3 Bh2 Ne3 Bg3 R5e7 Bd6 Ree5 Qh2 Qg3 Rg1 Qg2 f1B+ Qge2 Bfg2 Qa2 Bb7 Kc4 Rf1 Qaf2 Bgf3 Qh4 Qa2 Qh2 Bg2 Qe2 Rf3 Rd1 Rf1 Qe1 Bbd5+
3n4/B2N2p1/2n2Qr1/2RKQprk/rN1Q1R1q/b1R3nP/2RQb1b1/1B3r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 e4 c5 b4 f5 d4 Kf7 d6 Kg6 e5 c4 d5 c3 d7 c2 b6 a4 d6 f3 Ke3 a3 Kd4 g3 h3 f2 b7 g2 e6 a2 b5 Qf6+ Kd5 Ra6 d8Q Rc6 b6 Bd7 e7 Rc7 e8R Rc4 Re3 Kg5 Nc3 Ba4 d7 Rb4 Bd3 f1B Qd2 Nh6 Nf3+ Kg6 Rh2 g1R Ne5+ Kg5 Qe7 Ng8 d8Q Nc6 b8Q Nh6 b7 Nf7 Nd7 Be2 Qbe5 Rh6 b8R Rg6 Rb5 Kh5 Rc5 Qh4 Q7f6 R1g5 Rf2 Bb5 Rf4 Ra4 Rb1 a1R Na2 Ba6 Rb2 Bb7 Nb4 Be7 Qb6 Nfd8 Be4 Ba8 Rec3 Bb7 Ra2 Rb1 Bb2 Rf1 Bd3 c1N Bb1 Bb5 Ba3 Ne2 Rac2 Ng3 Bc1 Ra8 Qa7 Be2 Qa1 Ra4 Qb2 Bf8 Qdd4 Bba6 Be3 Bd6 Qc1 Bab5 Qcd2 Bf3+ Qee4 Bbe2 Bg1 Bg2 Be3 Rf3 Qee5 Rf1+ Qde4 Ba6 R5c4 Bh1 Nd3 Ba3 Ba7 Bc1 Nb4 Bg2 Rc5 Ba3 Qed4 Be2 Qde5 Rf3 Q4d4 Rf1+
4R2B/1NR1Pkp1/2nrR3/n1b1r1bN/Kb6/3pn1Qb/r3B1Qq/1B1R3B w - - 0 1 illegal: No proof kernel
4n2K/RN1bn2R/Q7/2Bpk1r1/Q2n2rb/N1pP3B/NnN1n1q1/Qq1Q4 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 Na6 h4 gxh4 a3 Nb4 Ke2 Nc2 Nh3 Nxa3 Ng1 Nc2 Kf3 Kf7 Ke4 Kf6 f4 h5 b4 e5 g4 a5 b6 c5 b5 a4 g5+ Ke7 b7 Kd6 b8N h3 g6 c4 b6 h2 d3 a3 b7 h4 g7 h3 f6 a2 Kf5 c3 Kg6 e4 f5 e3 f7 e2 f6 e1Q Ne2 Nb4 Na3 Ke5 Na6 d5 b8N Rh4 Nd4 Be7 f8Q Rg4+ Kh7 Bd7 f7 Nf6+ Kh8 Ne8 g8Q Nc6 Nc5 Bh4 Qh6 Qg5 f8Q Ne7 Be3 Ra6 Qa4 Qb1 Nb7 Rg6 Ndc2 Rg7 Bb6 Qd2 Bg1 Qg2 Na6 R7g6 Bc5 R6g5 Rg1 h1N Nab4 h2 Qf3 Ng3 Qha6 h1N Qd1 Nf2 Rh1 Ne2 Qf8 Bg3 Rh7 Bh4 Qfh6 Qg3 Bh3 Qg2 Qg1 Nd1 Qh5 Nb2 Qd1 Rd4 Qf7 Rdg4 Qff1 Qc1 Rb1 a1N Na2 Nb3 Ra1 Qb1 Q4a5 Ra4 Q6b6 Bf2 Nc1 Rgg4 Qd2 Bg3 Nb5 Rge4 Ra3 Reb4 Na2 Qa1 Qb1 Rc4 Qdd1 Bh4 Qb4 Ra6 Ra5 Rg4 Qa4 Nbd4 Nba3 Bf2 Qh6 Rag6 Ra7 R6g5 Qha6 Bh4 Qbc1 Nc4 Qb2 Qb1 Qa1 Nb2
rQ3NQb/2Bn2Nq/B1Rq2RP/1RbR2NN/bb1p1K2/1p3b2/4k3/2n2r2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 h4 Ke5 c4 b5 a4 g5 f6 d5 f7 b3 a5 b2 a6 d3 h6 Kd4 c5 e5 a7 b4 h7 d2 h5 b3 h6 Qc7 c6 Bh3 Ra5 Ba3 f8N Bd6 Nc3 b1Q Nge2+ Kd3 Ne6 Ne7 Rb5 Bb4 Ng7 Nf5 Rg1 Ng3 Ne4 Qd6 c7 Bd7 c8R Bc3 Qe1 d1B Rc6 Rf8+ Bf4 Rf6 h8Q g4+ Kg2 Bb4 Ng5 e4 Qg8 e3 f3 Bc5 Qb4 Be8 Be5 Nd7 f4 d4 f5 Rf8 Nc3+ Ne2 f6 g3 Kf3 g2 f7 Kd2 Kg4 Nc1+ Kf4 Bf3 Nce4+ Kd1 Ng3 e2 N3h5 e1B Bc4 Qh7 Bd3 Bb6 Rd5 Bc5 Qb8 Kd2 Ba6 Kd1 Rh1 g1B Rh2 Beb4 Rg2 Bf2 Rg4 Bh4 Rg2 Qe6 Bc7 Qe7 Ra2 Qe6 Ra5 Ke1 Rb5 Ke2 Nh3 Bf6 Ng5 Qe7 Qd8 Rc8 a8R Rb8 Ra7 Ra8 Qb8 Qd8 Nf5 Bh8 Nfg7 Ne5 Rg6 Qd6 Rab7 Bd7 R5b6+ Bb5 Rc6 Nd7+ Kf5 Re8 f8N Re3 Rbb6 Rd3 Rb7 Ba4 Rb5 Rd2 Bb7 Rd1 Ba6 Qe7 Kf4 Rf1 Nf6 Qe6 Nfh5 Qd6+
4B1n1/1b5Q/1N3Npb/2Pb2nB/1NpNbk1r/3QR2r/qBK1R1B1/4b2q w - - 0 1 illegal: No proof kernel
r1R2n2/2Qqr1Bq/R1p1r1rn/2Q2BPk/p2R1K2/N3R1bb/2r3N1/6BB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 f5 b4 Kf7 g4 Kg6 e4 h5 d4 c6 e5 h3 e6 h2 d6 h4 g5 h3 d5 Qc7 d7 Nf6 d8Q Rh6 d6 Rh8 e7 Rg8 e8B+ Qf7 b6 Rh8 b5 Nbd7 b7 Ng4 b8R Rh7 b6 Kh5 b7 Nh6 Qd5 Be7 Bd3 Nf8 d7 Bd6 Bb2 Rg7 Qb5 Rg6 Qc7 Qe7 d8R Qd7 Ra3 a4 Bf7 Be5 Ne2 Bd6 Rf1 h1R Rd1 h2 Bg7 Re1 Bd5 h1R Bc2 Rh2 Rd4 Re6 Qc5 Rg6 Nc1 Re7 Re3 Rge6 Bce4 Rc2 Na3 Rg6 Ne2 Rge6 Kg2 f3+ Kf2 f4 Bf5 Ra5 Ra8 Ra6 Kg1 f2+ Kh2 f1R b8B f3+ Kh3 f2 Ba7 Re1 Bh1 Rg6 Bb6 Ra5 Ra6 Bg3 Kg2 Ree6 Kf3 Re7 Nc1 Ree6 Nd3 Ree2 Ne1 Re7 Be6 f1Q+ Ke4 Qf6 Ng2 Qf7 Ba7 Qg8 Kf3 Qh7 Bf5 Qe8 Bb6 Be6 Rc8 Qd7 Be4 Bh3 Bf5 Rb5 Ba7 Rb8 Bb6 Bh4 Kf4 Ra8 Ba5 Ree6 Be1 Re7 Bf2 Re1 Bg1 Bf2 Rf3 R1e6 Re3 Bg3+
Bb1Br1b1/3NbqQ1/1q6/4n1p1/5Pk1/1B1rQ1Np/K1B2nn1/1RQ2RnQ w - - 0 1 illegal: No proof kernel
q2n2B1/b2Kb1Q1/5Q2/1r1n1PNb/R1R5/R3pNbp/1nRB3r/1BBk1q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 Kg5 b4 a5 g4 h5 d4+ e3 d6 h3 f4+ Kh4 b6 Kg3 g5 Kf2 d7 a4 Ke6 h2 b5 e2 g6 e1B g7 a3 b7 c4 d5 c3 b6 c2 d6 a2 Nd2 h4 Ndf3 Ra5 Ng5 Rb5 N1f3 Nc6 b8B Nf6 g8B Nd5 b7 Qe8 Bd2 c1N Bd3 Rh7 Rg1 h1Q Bb1 Nd3 Rg3 Nb2 f5 Qf1 Qc1 Ke2 Qc3 Kd1 Qg7 Bf2 Rg4 Bg3 Rc4 Qd8 Bc1 Qa5 Bc7 Qa8 b8R Bb7 d8Q Rh6+ Kd7 e5 Rc2 e4 Rc8 e3 Qdf6 Nd8 Ba5 Be7 Bc3 h3 B3d2 Rg6 R8c4 Ba6 Ne6 Rg4 Neg5 Rf4 Nh4 Rf2 Nhf3 Re2 Ke8 Rh2 d7 Ne6+ d8R Bb7 Rb8 Nd8 Kd7 Bc6+ Kc8 Be8 Ra4 Bh5 Kd7 Rc5 Rb3 Rb5 Rba3 Be5 Rcc4 Bd4 Bd3 Ba7 Rb1 a1B Rc2 Nc4 Rbb4 Be5 Be4 Nb2 Rbc4 Bg6 R2c3 Bg3 Bb1 Bf7 Rc2 Bh5
q2rQb2/B2RN1bB/2Nq1b1k/n2BP1n1/r3BRrp/3N4/6pQ/K1N4b w - - 0 1 illegal: No proof kernel
4rbR1/R1Rqq1B1/1rb3QQ/2qP1Q2/1n3R2/pnp1NBr1/6q1/N1k1KQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 a5 g6 h5 b6 f3 g7 a4 b7 f2+ Ke2 f4 b5 a3 b6 h3 Nd2 c4 Bg2 f1R Bb2 h4 Ngf3 h2 Nb3 h3 Rc1 Rg1 Nh4 Nd7 b8R Rh6 b7 Ngf6 g8R Nc5 Na1 Qe7 Qf1 f3+ Ke1 Bd7 Rc8 Bc6 Rc7 Qd7 b8Q Nb3 Qb5 Re8 Ra7 Qe7 Qa5 Rg6 Qd2 Qd7 Qh6 f2+ Kd1 Qe7 Bf3 R1g3 Ng2 Qd7 Rg1 h1Q Ne3 h2 Bc3 Qg2 e5+ Ke7 d6+ Ke6 Ke2 h1Q Rc2 Qe7 d7 Qh5 d8Q Nd5 Qa5 Nb4 Rh1 Qd7 Rh4 Qg5 Rf4 Qge7 Qe1 f1Q+ Kd1 Qff2 Qf1 Qh3 Qc5 Qfg2 Ke1 Qf5 Bb2 Kf7 e6+ Kf6 Qh3 Kg5 d5 Qdd6 Qb6 Qc5 Bg7 Qff7 Qa6 Qd7 e7 c3 Rf2 Qfe6 Rf7 Rf6 Qad3 Kf4 Qh6+ Ke5 Qf5+ Kd4 Rc7 Qe4 Qfh1 Kd3 Rf1 Rb8 e8Q Rb6 Re7 Re6 Qeg6 Re5 Re8 Re6 Ra8 Re8 Raa7 Qh3 Bd1 Qh4 Rf4 Qhe7 Kf1 Kd2 Bf3 Kc1 Ke1 Qc2 Qf1 Qg2
b3rqQ1/2QnB3/1rNnQN2/1bnp4/BRB2b2/3PqK2/1QRB2p1/3k1b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 Kf2 Ke7 c4 Kf6 e4 Kg5 e5 f5 b6 a5 b7 d5 c6 g3+ Kf3 a4 e6 a3 c7 g2 c5 a2 e7 Nd7 e8B Rb8 c6 Ne7 Ne2 g1Q Qb3 g6 h3 Bh6 h4+ Kh5 Qb2 Qe3+ Kg2 Kg4 h5 g5 Nbc3 Rf8 Rb1 a1N Rh2 Nb3 Nd4 Nbc5 Bc4 Rf6 Ne4 f3+ Kf1 f2 Kg2 Ra8 b8Q Bb7 c8Q f4 c7 Nf5 Nc6 Nd6 Qa7 Qe7 Qcb8 Qg7 c8Q Qf8 Qab6 Re6 Qb8c7 Rb8 Q8d8 Ba8 Qa6 Rb6 Nf6+ Kf5 Qdc8 g4 Q8b8 Bg5 h6 g3 h7 Re5 h8B f3+ Kh1 Kf4 d3 f1B Rc2 f2 Qbc8 Kf3 Bd2 Ke2 Bg7 Bh3 Q8d8 Qh8 Bf8 Bf4 Be7 Qf8 Qdc8 Bf5 Kg2 Re6 Qc3 Bg4 Rb4 Kd1 Qb2 Bh5 Kh3 Bg6 Kg4 f1B Q8d8 g2 Qac8 Nb8 Qdd7 Re5 Qe6 Re4 Qg8 Bf7 Qf5 Bg6 Bd7 Be8 Qfe6 Re5 Na5 Re4 Ba4 Bb5 Nc6 Nbd7 Bd8 Qe1 Kf3 Re2 Qeg4 Re8 Q4e6 Qe5 Be7 Qe3+
4B2B/R1r1RNQ1/bQ2K3/R2p1B2/B3nb2/R2p3q/P2nqr2/1N1rnn1k w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 e5 Kc4 b5+ Kd5 h5 c4 h4 f4 h3 g4 d3 g6+ Kf6 g7 e4 c5 e3 c6 e2 c7 e1N Qb3 d6 Nf3 h2 Ne5 Nh6 g8B Ra7 Nf7 Ba6 c8B Qe7 Be2 Qe8 Bd1 Nd7 Rg1 h1R Rg3 Rc7 Bh7 Be7 Bg6 Nc5 Be3 Ne4 g5+ Kg7 Bc5 Ng4 Ke6 Nh2 Bgh5 Rg8 g6 Nf1 Bc2 Rf8 Bd4+ Nf6 Qb2 b3 Rg5 b4 Bc3 Kg8 g7 Kh7 g8R Ne4 f6 d5 f5 Rg1 Bcd1 Rh1 Qf2 b2 Qb6 Rg1 Ba4 b3 Bcd7 Qc8 Bg4 Bd6 Bh3 Qa8 Be8 Bf4 Rg2 Qb8 Rc2 Qa8 Be5 Qb8 Rc5 Rh1 Ra5 Qd8 Ng5+ Kh6 f7 Kh5 f6 Kh4 Rg7 Kg3 Bf5 Kh2 Bd4 Rg1 Bc3 Kh1 Bd4 Rg8 f8R Qc8+ Rd7 Rg2 f7 Rf2 Bh8 Rg7 Rg8 Rc1 f8Q Rd1 Qf7 Qc2 Rf8 Qe2 Ra7 Rh7 Qg8 Rb7 Nf7 Rc7 Nd2 b1Q Qg7 Qb2 Rc1 Qc3 Nb1 b2 Rc2 Qd4 Rc3 Qde3 Ra3 Qg3 Nd6 Qh3 Rf7 Rc4 Rfe7 Rc7 Nd2 b1N Nf7 Nbc3 Nb1 Ned2+ Qe3 Nce4 Qed4 Rc8 Qb6 Rc7
rQqRNr2/R1KnN2R/1R1n1b2/3p4/p5n1/1q1q2qB/1N1B1P2/1k1NQb2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 a5 g4 h5 b4 d3 b6 e5+ Kb5 h3 f6 d2 c5 h2 c6 h4 c7 h3 f7 Nh6 g5 Ng4 b7 Be7 Kb6 Bf6 b5 Rf8 Ne2 Kd3 g6 e4 g7 e3 Qe1 Kc2 g8N d1Q Nec3 e2 Ne7 d5 Bf4 Qd3 Nd2 Nd7+ Kc6 Kb2 b8R Ba6 b6 Qc8 b7 Kc2 Nc4 a4 Nd1 Qg3 Ncb2 Bd3 Rg1 h1Q Bd2 h2 Bh3 Qe4 Rh1 Ba6 Rb1 Qed3 Rc1+ Kb3 Rc5 Ka2 Ra5 Bc4 Ra7 Kb1 Nf5 Qb3 Ng7 Bd3 Ne8 Ba6 Qf1 e1Q Qe2 Qeg1 Qe1 Qgd3 Kd6 Qgg3+ Kc6 Qd8 c8N Qa5 Ne7 Bc4 Rd8 Ba6 b8R Bc4 Rf1 h1N Rb6 Qa6 Rg1 Qg6 Rg2 Bf1 Rh2 Qg3d3 Kd6 Ng3 Kc7 Ne4 Rh1 Nd6 Rh2 Rg8 f8Q Qg5 Bg2 Qge3 Rh7 Qg3 Bh3 Rh8 Qf7 Rf8 Qfe6 Nb8 Qc8 Nd7 Qb8 Qc8+
1R1N4/N1Qb4/r2nBBk1/1NP5/3nq2p/2brnR1N/1p1BQnK1/1q1qB3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 a4 Kf7 g4 e5 f4 b5 Kf2 h5 c4 d5 f6 d3 g6+ Ke6 a5 d2 a6 h4 f5+ Kd7 f7 Ke7 g5 e4 f6+ Ke6 g7 Kf5 a7 b3 g6 b2 Rh3 b4 Rf3+ Kg5 Na3 b1N Nb5 d4 Kg2 d3 Qe2 Nh6 g8N b3 g7 b2 Ne7 e3 g8N d1N Nc6 d2 Nge7 Qd5 Nd8 Na3 Nec6 Nf5 Nh3+ Kg6 c5 Bd6 f8B Qe4 f7 Nc4 Bg7 Bd7 f8B Nf2 Bf6 d1Q B8g7 Be5 Bd2 Nfd6 Ra4 Bc3 Rb4 Re8 Be1 Re5 Bh6 Rd5 Bhg5 Rd3 Bf4 Na6 Bh6 Nc7 Bhg5 Rc8 a8Q Ne6 Qa5 Nd4 Nca7 Rc6 Qc7 Rb6 Na3 Rc6 Rb8 Ra6 N3b5 Qb1 Qd1 e2 Bgd2 Ng4 Bg3 e1Q Qe2 Qed1 Bge1 Nce3+ Kg1 Ndc4 Nf2 Qbc1 Bh3 Qb1 Kh1 Nh6 Be6 Nhg4 Nh3 Nd6 Kg1 Nf2 Kh2 Nec2 Kg2 Ne3+
N3n1b1/1Rn2b1r/1K3n2/1qPR1B2/2p2B1r/pkNRR1QN/q1n1Q2b/4N3 w - - 0 1 illegal: No proof kernel
1Q3r2/R1q3qQ/3r3Q/pr2nPnR/QbBB2N1/K2qRb2/N1pk1q2/7R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc3+ e3 Kb4 Kf4 f3 c5+ Kb3 a5 b6 e5 d6 h5 b7 h3 d5 e4 d7 h2 d6 h4 g5 h3 g6 c4+ Ka3 c3 b4 c2 b5 Rh6 g7 Qc7 d8R Bg4 b6 Nc6 b8R Nf6 g8Q Nh7 b7 Bg7 d7 Bc3 Qd2 Ne5 Bb2 Rd6 Bc4 Ng5 Qh7 Bh5 Qd4 e2 Re8 e1Q d8Q Qd2 Re6 Qd3 Qdh8 Qg7 Rc8 Rb8 Rc7 Rf8 b8Q Bg4 Ra7 Bh5 Qdb6 e3 Qb4 e2 Qa4 Ke3 f4 e1Q f5 Qf2 Nf3 Ke2 Rh6 Bg4 Rh5 Ke3 Nfd2 Bf3 Nf1+ Ke2 Ne3 Qc7 Rd1 h1Q Ng4 Qhg2 Rh1 h2 Qh6 Qgg3 Q8h7 Qgg2 Nd2 Qgg1 Nb3 Qgg3 Nc1+ Kd2 Re1 h1R Na2 Qg7 Re4 Rb1 Re3 Qf4 Ba6 Qfc4 Bb5 Qcc7 Bc4 Re1 Rb1 Re2 Rf1 Re1 Ba1 Rb1 Rfh1 Rb5 Nc1 Bb4+ Ka2 Qg2 Bd4 Bc3 Ka3 Qf2 Na2 Bb4+
1N1q1N1r/B3rb2/1Q2nKq1/p1p2RNB/1B6/P1QNnBkr/r2R4/2q1b3 w - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 h4 gxh4 b4 d6 bxc5 Bd7 c6 Bc8 c5 dxc5 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 b5 d4+ Ke4 g4 a5 f4 h5 d5 e5+ f6 b4 f5 b3 d6 h3 d7 b2 a3 h2 c7 h4 Bd2 h3 Qe1+ Kd4 Be2 Ke4 Ra2 Qe8 d8B Bb7 c8Q Ne7 f7 Rh6 f6 Nf5 Nf3 Bd5 Rf1 h1R Bb6 h2 Qc6 Rh7 Ba7 Bd6 f8N Qd8 Bb4 Re7 f7 Na6 Nd7 Nc7 f8N Ne6+ Kf6 Kf4 g5 e4 g6 e3 Qc3 Kg3 Nbd2 b1Q g7 Bb3 Bd1 e2 g8B e1Q Nb8 Ne3 Ne5 Qe4 Bg4 Qc1 Bf7 Rg1 Qc7 h1R Bf3 Rh3 Nd3 Rg2 Qb6 Bf4 Rc2 Bh6 B7h5 Qg6+ Ke5 Bg5 Rf2 Bh4 Ne4+ Kh2 Rf1 Be1 Ng5 Kg3 Rd2 Bc4 Rd1 Ra2 Rd2 Bb5 Rff2 Be8 Rf1 Bf7 Rff2 Qh7 Kf6 Qg8 Rf1 Qg6+ Ke5 Rh4 Na6 Qd1 Nd7 Rb8 Ba8 Rh2 Rf5 Qdg8 Baf3 Rd8 Nab8 Rh3 Bfg4 Qc1 Bf3 Q6h7 Kf6 Qe8 Nf8 Qd7 Ng6 Rh8 Nf8 Qd8 Bhg4 Qg8 Bh5 Qg6+
1bBNQ1bB/1QR4R/1B2b1rP/n6k/1KN1B1b1/n4QQ1/1rp3p1/2q1nq2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 g5 h4 f5 e4 Kf7 d4 Kg6 Kd2 a5 Kc3 c5 b6 c4 b7 f3 d6 f2 e5 f4 d5 g3 e6 g4 e7 a4 b5 f3 b6 g2 d7 g3 d6 a3 Qd4 a2 Qd3+ Kh5 Qd1 Nc6 b8Q Na7 b7 Qc7 d8Q Bg4 d7 Rh6 e8B+ Rg6 Bd3 f1B Na3 f2 Qf3 Bd6 Nh3 g1N Bb2 g2 Ng5 Ne7 Ne6 Nec6 Be4 Na5 Rc1 a1Q Qe7 Bg3 d8B Nb5+ Kb4 c3 Nc4 Na3 Bd7 Be5 Qc8 Rb8 Qe8 Be2 Rh3 f1B Rc2 Qc6 Bb6 Bd1 Rc1 Bb3 Nd8 Bd3 Rc2 Qf1 Qc7 Bf4 Bc8 Ba2 Rc1 Bc2 Qcf7 Bcb3 Qg3 Nf3 Qf5+ Kh6 h5 Ne1 Rh2 Be5 Qff3 Bc7 Rb1 c2 Bh8 Qd7 Rh4 Qd1 Rh1 Qc1 Ra1 Ra8 b8Q Kg5 Qb7 Bb8 Nd6 Bg8 Nc4 Qe3 Rd1 Qc1 Rd7 Ra6 Rc7 Bb3 Ne5 Bbe6 Nc4 Ra8 h6 Ra6 Rg1 Kh5 Rh7 Qd3 Rf1 Qe2 Rf2 Qf1 Rd2 Ra8 Rdd7 Ra7 Rc7 Ra6 Be3 Rb6+ Ka4 Rb2 Bb6 Nb3 Kb4 Na5+
rNRQ1b2/2bqr1kB/5p2/1QK1Rn2/B1b1q1N1/1q1pR1BP/1R5B/4b1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 b4 a5 e4 g5 c4 d3 b6 f3 Ke3 a4 Kd4 d2 e5 f6 h3 Kf7 h6 g4 b7 f2 b5 g3 e6+ Kg6 b6 a3 h7 g2 c5 a2 e7 Qd6 e8B+ Kg7 c6 Ra7 c7 Qh2 Ne2 g1B Qa4 d1Q+ Nd2 Qc2 Nf3 Ra5 Qb5 Qg2 Bf4 Ne7 Bh2 Be6 c8R Ra7 Re1 Nd7 b8R Qb3 b7 Ne5 Kc5 a1B Ned4 Bc3 Re3 Be1 Bd3 f1Q Nc6 d4 Bg3 Qd2 Nh2 Bc4 Ng4 Qf5 Rh2 Ra8 Rhe2 Nf3+ Re5 Qff4 R2e3 Bh2 Be4 Ng1 Bd7 Rg8 h8Q+ Kf7 Bc2 Qe4 Bf5 Rg7 Bh7 Qa2 Ba4 Qb3 Re8 Qdd3 Rbc8 Qd2 b8B Nf5+ Bd6 Qdd1 Nb8 d3 R8e6 Qdf3 Ree8 Qb7 Re2 Qd7 Rb2 Qe4 R8e6 Be7 Qd8 Bf8 Bg6+ Kg8 Bh7+ Kh8 Bh4 Bf4 Bg3 Re7 Bc7 Kg7 Bh2 Qh1 Re3 Qe4 Be5 Bh6 Beg3 Bg5 Re5 Bf4 Re6 Bc7 Re5 Bf7 Rg2 Bd5 Rb2 Bc4
bR5N/kq1r3Q/3bPbq1/B2r1BRn/QB6/n2N1K2/1pN3p1/q3NB1b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 a4 c5 e4 Kc7 d4 Kb6 h4 g5 a5+ Ka7 d6 b5 e5 f5 e6 g4 h6 g3+ Kf3 c4 d7 c3 a6 b3 h5 c2 d5 b4 h7 b2 h6 b3 d6 Nc6 Rh3 Qe7 d8Q Ne5+ Ke2 f3+ Ke3 f2 d7 Nc4+ Kf3 f4 Ra5 Na3 Rg5 Nf6 Bd2 c1B Bb4 Nh5 Rh2 Qe8 Qe7 Qg6 d8B+ Bd7 Qf7 Bd6 Bda5 Rhd8 h8N Be3 h7 Bd4 Qf5 Bf6 Nf7 Bc6+ Qe4 Bb7 h8N Rd7 Ne5 Rad8 Nd3 Ba8 Rh1 Rc8 Qc2 Rc5 Qc6 Rd5 Qa4 Nb5 Na3 b1Q Rh4 Qa1 Qb1 b2 Nc2 Na3 Rh1 Kb8 a7+ Kb7 Bh3 f1B Bf5 Be2+ Kg2 Bd1 Nf3 Ka6 Nfe1 f3+ Kf1 f2 Kg2 Bg4 Rg1 Bh3+ Kf3 Kb7 Rh1 Ka6 Rh2 f1Q+ Rf2 Qh1+ Rg2 Bb7 a8B Bc6 Bb7+ Ka7 Ba6 Ba8 Bb5 Qg1 Ba6 Qb6 Rh2 Bf1 Rh4 Qb8 Rc4 Bh3 Rc8 Qb7 Rb8 Bf1 Ne5 Bh3 Be2 Bf1 N5d3 Bh3 Bf1 Bg2+ Ke3 Bh1 Ke2 g2 Kf3 Qa6 Nc1 Bc7 Nd4 R7d6 Bg4 Qg7 Qh7 Qg6 Ndc2 Rd7 Ncd3 Bd6 Bf5 Qb7
2B1R3/2N1rQq1/NnK1pR2/B3p1QQ/2q1rq2/P1R3b1/b1R1b3/k1nQ2b1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f6 e5 fxe5 gxh5 Bh3 Qa4+ Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 h4 g5 f4 b5 d4+ Kd6 a3 g4 h6 b3 h5 b4 f5 g3 f6 b2 h7 b3 h6 g2 f7 Qd7 Ne2 g1B Rh2 Ra7 Nd2 Ba6 Nc3 Nc6 Bh3 Na5 Bg4 Bg7 f8R Be2 Rf6+ Qe6 Ra2 b1B+ Rc2 b2 Rh3 Ba2 Nb3 b1Q Nc5 Qb7 Bd2 Nb3 Na6 Nc1 Rd3 c5 Qf1 c4 Nb5+ Kd7 Ba5 c3 Nbc7 Kd6 Qf5 Bf8 Qh5 Bf2 Qf7 Bg3 Rcd2 c2 Rc3 Nb3 Bh3 c1Q Rdc2 Qg5 Bg4 Nc1 Bh3 Qb4 Bg4 Qg7 Bh3 Kd7 d6 Qc4 Bf5 Kc6 d7 Qd6 Be6 Qb4 d8Q Qa4 Nd5 Kb5 Bc8 Qab4 Ndc7+ Ka4 Qd7+ Qcb5 Qg4 Q5c4 Qg5 Rb7 Kf5 Ra7 d5 Qf4+ Ke6 Qbc4 Kd7 e6 d6 Ne7 Qg4 Rg8 h8Q Nd5 h7 Rb7 Qg5 Nb6+ Ke8 Ra7 d7 Rb7 d8Q Bc5+ Qf8 Bg1 Qd1 Qg6+ Ke7 Qg7+ Qf7 Re8+ Kd6 Re7 Qhg8 Ra7 h8R Ra8 Qfh5 Rb8 Qgf7 Ra8 Rf3 Rb8 Rf2 Kb3 Rc3+ Kb2 Re8 Ka1 Rg2 Nd7 Rh2 Rb4 Rg2 Nb6 Rh2 Qb3 Kc6 Re4 Rg2 Bf3 Rd2 Be2 Rdc2 Qc4+
2R3qk/1QN5/B1P1RNRq/bB4B1/3rBqn1/pp2RQ1b/1q4nr/K2r4 w - - 0 1 illegal: No possible last move
K1B1r1B1/2Qq1NRb/qBpqk3/1n1n1N2/2N2R2/4bQNp/BPqr4/3r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 a5 Ke4 h5 d4 h3 g4 f3 d6+ Kf6 Kd5 h4 e4 h2 e5+ Kg7 b6 f5 b7 Kf7 e6+ Kf6 g5+ Kg6 e7 Kf7 g6+ Kf6 e8B a4 d7 f4 g7 f2 Na3 h3 Be3 f3 Bf7 Bc5 Ne2 Nc6 b8Q Na7 Nc4 a3 Rg1 h1R Ng3 a2 Qe2 Qf8 d8N Bf5 Nc6 Bh7 Ne7 Qe8 Rb1 a1Q Nef5 Qaa4 Be6 Qf8 Bc8 Qc2 Bg2 Bb6 Rbf1 Qe8 Qb7 c6+ Kd6 Qg6 d5 Ne7 Qc7 Re8 g8B Qf7 Kd7 Rh2 d6 Nd5+ Ne7 Qfg6 Nef5 Rb8 Qd1 Bd4 Qd3 Rb3 Qe4 Rd3 Qf4 Rd1 Qg4 Bc3 Bb6 Bd2 Qe4 Be3 Qf4 Re7+ Kd8 Qf7 d7 Ke6 Na5 Ra1 Qb8 Nf6 Kc7 Bc5 Kb7 Be3 Qbc7 Re8 Ka8 Re1 Ne4 Rc1 Rd1 f1Q Rd4 f2 Rc4 Qfd3 d8N+ Kd5 Bf1 Rd1 Qf3 Rg2 Be2 f1Q Rb4 Qe6 Nf7 Qd7 Rc4 Rh2 Rg7 Ke6 Neg3 Qd6 Rf4 Nd5 Bc4 Rhd2 Ba2 Qa6 Nc4 Nb5+
2B3Br/1rb2N2/B1p4q/Q3n2r/4R1b1/Q2Rp3/Pnkq1RK1/1RbNBb2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kf7 f4 Kg6 Kf2 Kf5 g3 h5 d6 b5 d5 e5 d7 h4 g6 b3 d6 h3 g7 c6 Nf3 h2 Na3 b2 Rg1 b1B Qe2 h1Q Qd3 b4 Bd2 b3 Nc4 b2 Ng5 Ra5 Nf7 Ne7 g8B Bh6 Qa3 Na6 Be1 Bd3 Rb1 Nb4 Bh7+ Ng6 g4+ Kf6 f5 e3+ Kg3 e2 Ne3 e4 Nd1 Ne5 Kf2 Qh5 Kg2 Bc1 Rh1 e3 Rh4 Qh6 g5+ Kg7 g6 Kf6 g7 Bda6 g8B Nbd3 Bb4 e1B Re4 Bg3 Be1 Rc5 Be2 Qa5 d8R Qd2 d7 Ra5 Ra1 b1R Bg6 Rbb5 Rb1 Rb7 Bh5 Nb2 Bg4 Kg7 f6+ Kg6 Rf8 Rc5 d8R Rcb5 Bh3 Bg4 Rd3 Kf5 Qa5 Ng6 Ng5 Bc7 f7 Ne5 Ra8 Rc5 f8Q+ Qf6 Nf7 Qh6 Re8 Rcb5 Qfa3 Rc5 Red4 Rcb5 Rd6 Ke4 Rf6 Rc5 Rf2 Rd5 Rb3 Bb5 Bf1 Bbe2 Re7 Bh5 Bc8 Bhg4 Nc3+ Kd3 Nd1+ Kc2 Rd3 Nd7 Re8 Rh5 Re4 Ne5 Rd7 Bb5 Be2 Ba4 Ba6 Bb5 Rd8 Bbe2 Rd3 Bf1+
4bQB1/1Rr3n1/1P3bQN/pn6/BpN1Q3/QbB1nqq1/3rn2R/2B1k2K w - - 0 1 illegal: No proof kernel
br2K1B1/Q3b1r1/1prQ3Q/BR2n1N1/p3rPB1/1Q1Nn3/1q1B2k1/2q2q1R w - - 0 1 illegal: No proof kernel
N4rQB/K1n1r1Q1/p3B1q1/1NPnR3/2R3Bk/q5b1/B2bp2r/1r1bR2R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 b4 Kg6 c4 d5 f4 e5 g4 h5 f5+ Kh7 c5 d3 Kc3 d4+ Kc4 e3 g6+ Kh6 b6 Kg5 Kb5 h4 b7 d2 f6 e4 g7 h3 f7 e2 Bb2 e1B Qb3 d1R Nd2 e3 Nc4 e2 Nf3+ Kg6 g5 Kh5 g6 h2 Nb6 d3 Nd4 d2 Bh3 Bh4 Bg4+ Kg5 Qg3 Bd6 f8Q Ne7 g8B Bf4 g7 Na6 b8R Rb1 B8e6 d1Q g8B Qc2 Qg7+ Qg6 Ka5 Qd7 b5 Nd5 Bc3 Bb7 Re8 Bc6 Re1 Rb8 Na8 h1R b6 Rh2 b7 Ba4 Nb5 Bd2 Rh1 Rc8 b8R Bd1 Ra4 Qd6 Rc4 Rh7 Rb7 Qc6 Rf7 Rd8 Rff1 Nac7 Re1 a6 Re7 Rf8 Re8 Qd7 Re7 Ne3 Kb6 Qd3 Ka7 Ned5 Bgf7 Qf3 Qg8 Qd3 Bh8 Qa3 Qc3 Bg3 Qcg7 Be5 Bd7 Bg3 Re5+ Kh4 Bdf5 Rb3 Bb1 Rb4 Ba2 Rb1 Bfe6 Qc2 Qg6 Re7 Q6g7 Qg6
2B1qnbk/r2Nr1Np/q3BrR1/rRbR1n1P/1p5R/2N1qN2/Q4Q2/1K6 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 dxe5 f5 a4 fxg4 Ba3 Qg5 axb5 Nf6 b6 Ng8 b5 Qd8 Bb4 cxb4 Kd2 Kf7 Kc1 g5 e4 Kg7 c4 a5 h4 d5 f4 d4 h5 a4 b7 a3 f5 a2 e6 g3 e5 g4 c5 g2 b6 d3 e7 g3 e8R Nf6 e6 Ng8 f6+ Kh6 f7 Kg7 c6 Ra4 e7 Nd7 b8N Nh6 c7 Ra7 b7 d2+ Kb2 Rg8 Qa4 d1R Bc4 Rf1 Rh4 Kh8 Qb3 Rg5 Nc3 Re1 Rd1 a1Q+ Kc2 Qa3 Qa2 Qa6 Kb1 Re4 Rd6 Ra5 Rg6 Re3 Nc6 Re2 b8R Bb7 Ne5 Bd5 c8B Re4 Nh3 Rf4 Ng5 g1R+ Nd1 g2 Rb5 Rh1 Bb3 Rh3 Nc3 Re3 Bc4 Qc7 Rd8 Qcc6 e8N Bc5 f8Q+ Bg8 Qf5 Nf8 Ng7 g1Q+ Rd1 Qe8 Nd7 Re7 Be6 Qf2 Rd5 Qe3 Qfc2 Rf5 Qf2 Rf6 Nf3 Nf5
1K4bQ/2q3Bp/3B1PQ1/Q1b2pNn/N1R1q3/1krqrn1Q/nB4B1/2q2R2 w - - 0 1 illegal: No proof kernel
b1Kq1Q1Q/Q5Qp/1PN1B1N1/R1r1R3/2b4b/B3pr2/2nnn1N1/N2k2bq w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 c5 f4 a5 g4 e3 g5 c4 f5 e2 b6 e1Q+ Ne2 c3 f6 h3 d6 c2 d7 Kb3 Ke6 a4 d5 h2 f7 a3 d6 a2 b7 Bg7 f8Q Qea5 g6 Bf6 g7 Bh4 Bh3 Nc6 b8Q+ Qab6 Qd4 Ra3 Nf4 Ra5 Re1 h1B Qa7 Rc5 Na3 Qb7 Re5 Nf6 g8N Nb4 Ng2 Ne4 Qg7 Qc6 Qf2 Qa8 Qff8 Ba6 Bf5 Nd2 Bg4 Qb6 d8Q Bc4+ Kd7 e6 Ne7 Qa5 Qff6 Rf8 Ng6 Qe4 Qfe7 Rf3 Qdh8 Qd5 Qef8 Qa8 Rg5 e5 Be6 e4 Re5 e3 Qc7 Qc6+ Kc8 Bf2 d7 Bg1 d8N Qd5 Rb1 a1B Nc6 Qb6 Qa7 Qbd8+ Kb7 Ka2 b3 Bd4 Bb2 Bc3 Rd1 c1N Nc2+ Kb1 Na1 Nc2 b4 Bd4 b5 Bc3 Re4 Bf6 b6 Bh4 Ba3 Qh5 Rf1 Qh6 Rf2 Ne2 Re5 Qh5 Bb4 Kc1 Ba3+ Kd1 Rf1+ Ne1 Rf2 Rf4 Rf3 Nc2 Rg3 Rf3 Rg4 Ba2 Ra4 Bc4 Ra5 Qg4 Nce7 Qh3 Ne1 Rf5+ Ng2 Rd5 N2f4 Be4 Ng2 Qh1 Qff6 Rf3 Qff8 Qd6 Kc8 Rc5+ Qc7 Ba8 Nc6 Qd3 Qa7 Qd8+
q1r5/R1rR1Np1/p3N1B1/2nQR1b1/P1Q1r2R/1qnQ4/1n1Kbk1B/r6Q w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 h4 Kd7 e4 b5 d4 f5 d6 Ke6 d7 g3 d5+ Ke5 d6 b4 a3 g2 c6 f3 c7 b3 h5 f2+ Kd2 Kf4 e5 Kg3 e6 b2 h6 f4 e7 f3 e8R Na6 h7 Nc5 Rh4 Ba6 c8Q Be7 Nh3 g1R Nc3 b1Q Na4 Be2 Ng5 Nf6 Nf7 Nd5 Qa6 Qbb6 Qc4 Nc3 Qdb3 Rg8 h8Q Rc8 Bb2 Bf6 Re5 Rc7 Bg2 Qdb8 d8R f1R d7 f2 Be4 Re1 Bg6 Qa8 Qd3+ Kg2 Qbc4 Qb3 Ra2 Ra1 Qh7 Rge1 Qh6 Nb7 Nc5 Kf1 Ne6 Nc5 Rb8 Rh8 Rb7 Rhc8 d8Q a6 a4 Kg2 Q8d5+ Kg1 Ra7 Bg5+ Nf4 Nd1 Bd4 Nc3 Be3 Kf1 Ne6 Kg1 Bf4 Kf1 Ke3 Kg1 Rd2 f1N+ Kd4 Kf2 Bh2 Ne3 Qh8 Ncd1 Qh5 Nb2 Qh1 Qa2 Kc3 Nd5+ Kc2 Nc3 Rd1 Bf6 Kd2 Qb3 Qg5 Rg1 Qh5 Rg4 Qhf5+ Rf4 Qdd5 Bd8 Qfd3 Bg5 Qb7 Bh6 Qf5 Ra3 Kc1 Bg4 Rd7 Bg5 Kd2 Be2 Qfd3 Ra1 Qbd5 Re4+
n1qn2b1/N1rN1pQ1/4rn2/2nB1K2/1p1B4/B6k/1P1N2Nq/RbB2bRQ w - - 0 1 legal: proof: f4 b5 h4 g5 c4 e5 a4 exf4 a5 d5 cxd5 gxh4 Ra4 Bc5 Ra1 Bb6 axb6 Bh3 Ra4 Bf5 Ra1 Bc8 Kf2 Kd7 Kf3 h5 Ke4 a5 d4 c5 g4 h3 e3 f3 b7 c4 g5 f2 g6 c3 d6 Ke6 g7 h4 d7 a4 Qd2 h2 Be2 f1B Qd1 a3 Bd2 h3 Kf4 c2 e4 c1N e5 a2 Bf3 Nb3 Bc1 Nc6 b8N Nc5 Nd2 Nf6 g8Q Na4 Qg7 Ra6 Ne2 Nb6 Rg1 h1B Kg5 Qg8 d8B h2 Be7 Na8 Nd7 Nd8 Ba3 b4 Bc6 Be4 d5+ Ke7 d6+ Ke6 Kf4 h1Q Qe1 Rh5 Qh4 Qg2 Qh1 Bb1 Bf3 Qh3 Be4 Bb7 Bf3 B7e4 Bg2 Kd5 e6 Re5 e7 Ke6 e8N Rc5 Bf3 Rc7 Bg2 Qh2+ Kg5 Kd5 Nf4+ Kd4 Bf3 Bh7 Bd5 Ke3 Ng2+ Kf2 Nb3 Kg3 Nd2 Rc5 Nc7 Kh3 Nb5 Rc7 Na7 Qe8 Nb8 Bg8 d7 Rc2 Kf5 Re6 Bf3 Rc7+ Be4 Nc6 d8B Qd7 Be7 Qc8 Bc5 Nd8 Nd7 Bbd3 Rb1 a1N Bd4 Nb3 Ra1 Bb1 Nc6 Nc5 Na7 Nd3 Bd5 Nc5+
2rb3q/R4pnN/rbN3P1/p7/Q1B1K1bk/1n2q2b/BQ1QR3/2n2BBQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 c5 b4 h5 e4 c3 d4 a6 g4 h4 d5 h3 g6 Kf6 g7 Kg5 d6 h2 d7 c2 b6 c4 b7 c3 e5 Qe7 d8Q Ra7 e6 Rh3+ Ke4 Nc6 b8Q Bd7 b5 Rg3 b6 Rh3 b7 Rh8 Nh3+ Kh4 g5 f3 Qf4+ Kh5 b8Q Ra8 Nd2 Ra7 Qb2 Nh6 g8B Na5 Nc4 Nf5 Be3 c1B Bh7 c2 Bg1 Nb3 Ne5 Ng7 Nc6 Be3 Bc4 Qa3 e7 c1N e8B Bg4 Q8d2 f2 Bf5 f1B g6 Bec5 Bfe6 Bfe7 Ng5 Bh3 Nh7 Bb6 Bf1 Bed8 Bec4 Be7 Bd7 Rc8 Bde6 Kh4 Qff3 Bed8 Qfg2 Nd4 Qa4 Qg3 Ba2 Ndb3 Bec4 Raa8 Bc5 Ra7 Rg1 Qc3 Qh1 Raa8 Rg2 a5 Bg1 Ra6 Re2 Qg3 Rb1 Qe1 Qf3 h1Q Qg2 Qh2 Qh1 Nd3 Rc1 Qef2 Rc3 Ndc1 Rd3 Qc5 Rd7 Qg5 Re7 Qh6 Ra7 Qg3 Nf8 Qh8 Nh7 Qe3+
QR5B/1Q2P1qR/1bNnR3/1QKp1Nr1/2B3bq/p1q2nQ1/1rk3rR/3r4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 h4 Ke6 e4 Ke5 b4 d5 c4 a5 h6 g5 h7 f5 h5 a4 b6 g4 c5 f3 b7 f4 b5 a3 h6 d3 c6 Kd4 b6 d2 c7 Bg7 e5 Ra5 e6 Qf6 e7 Nd7 b8Q Rb5 b7 Ne5 Ne2+ Kd3 Qa4 d1Q Ra2 Qb3 Nd2 Qh4+ Ng3+ Kc3 Ra1 Kc2 Bb2 Nf6 Rh2 Ne8 Nc4 Rg8 h8R Bf6 Qba8 Nd6 b8R Be6 c8Q Rb7 Ke1+ f2+ Ke2 Rb5 Bc3 f3+ Ke3 Rb7 Be2 f1Q Kd4 f2 h7 Qg2 Re1 f1R Na5 Rb6 Qcb7 Rb5 Ne4 g3 Nc6 Bc8 Bc4 Rb4 Re3 Rd1+ Bd2 Bg5 Qab5 Bf4 Re1 Qg1+ Re3 g2 Ng3 Rg4 Rg8 Rg7 h8Q Rg6 Qg7 Nf3+ Kc5 Qd3 Rh8 Rb2 Bc3 Rg4 Be5 Qc3 Rh7 Bf5 Bd4 Bh6 Re6 Be3 Kb6 Rg6 Nd8 Bf2 Kc6 Rg4 Bf6 Bb6 Qg6 Qgd4 Bh8 Qdf6 Qg5 Qg7 Qf4 Rg5 Qg4 Bg6 Nf5 Bh5 Qf4 Bg4 Qg3 Bc7 Kc5 Ba5 Rh1 g1R Rh2+ Rg2 Nc6 Bb6+
1b1Q2br/2rRp3/BK1Q1PQ1/n2Q1b2/nBp5/N1R2rRq/4r3/kqN1R3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 c5+ Kc4 a4 g4 a3 d4 e3 f5 e2 g5 e1R b6 a2 Kb5 h3 g6 h2 g7 h4 b7 h3 Bd2 Qd7+ Kb6 Re2 b5 Nf6 g8Q Ra7 Bb4 Nc6 b8R Ne4 f6 Bh6 Qg6 Nc3 Na3 Na5 Rc1 a1Q Ra8 Qe6 Qb3 Bd7 Rg8 Rc7 Re1 Bf4 Qd1 Rd2 Ne2 Qb1 Nc1 Re2 Rg1 h1R Rg3 h2 Rc8 Qh3 Qdd3 Bg4 Qd2 Kd7 d6 Ke6 d5+ Ke5 d7 Bf5 d8Q Rg1 d6 h1B d7 Bd5 Qa2 Bg8 Qe6+ Kd4 Qd6+ Bd5 Qdg8 Rgg2 d8R Rgf2 Rd7 Rf3 Qd8 Ke3 Qc6 Bg8 Qd5 Na4+ Ka6 Qe4 b6 Qb1 b7 Bd6 b8Q Bf4 Qc6 Bd6 Qbb7 Kd4 Ka7 Re6 Ba6 Re2 Rb8 c4 Ra8 Nc5 Kb6 Na4+ Kb5 Rc8 Rb8 Nb2 Bc5+ Kc3 Qcb6 Ree3 Qd5 Re2 Rbb7 Bb8 Qbd6 Nb3 Rb6 Na4 Rbb7 Kb2 Rb6 Nd2 Ka5+ Ka1 Rb3 Rc6 Rc3 Rc7 Bb4 Nb3+ Kb5 Nac5 Kb6 Na5 Qh5 Bf7 Qh6 Bg8 Qg6 Na4+
1Q2b1b1/QRRp4/5pkr/P2R2N1/B2n1qb1/2N2Q1K/1b6/n1BQrnqR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 b5 Kg2 g5 a4 d3 h4 b3 e4 b2 c4 b4 a5 f6 e6 d2 h6 b3 h7 g4 h5 g3 e7 Kf7 e8R Na6 c5 Nh6 c6 Nb4 c7 Ba6 c8R Nc2 e5 Ba3 Rc3 Qc7 Bb5 Nf5 h6 Nfd4 e6+ Kg6 e7 Qf4 Ba4 Bc4 Nh3 Bg8 Rc7 Rc8 Nc3 b1B Rb7 b2 Ng5 Rb8 Ra2 Na1 Kh3 g2 Rc8 g1Q Rcc7 Re8 Qf3 Be4 Qd1 b1N Rc2 Rf8 e8Q+ Rf7 Qf3 d1B Qb8 Nd2 Qa7 Nf1 Rd2 Bb2 Rd3 Re7 Rd2 Ndb3 Rd6 Nd4 Rd5 Bb3 Qd1 Bb1 Qf3 Re1 Qd1 Bf7 Qf3 Be8 Qd1 Rf8 h8Q B1a2 Qf3 Bd1 h7 Rf7 Qf8 Rfe7 h8Q R7e5 Rd6 Bg8 Rd5 Rf5 Qd6 Be2 Qd3 Bh5 Qd1 Rfe5 Qa3 Re7 Qab3 Rh7 Qf3 Rh6 Qbd1 Bgf7 Qf8 Bg8 Qb4 Rh7 Qbb6 Rh8 Qb8 Rh6 Q6a7 Bg4#
1rk2b2/2Np2R1/1rP3br/1B2q3/1K1r2Np/R1NQ3R/q2bQ2n/N2nB2R w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 f4 e5 g4 a5 b4 d3 Kc3 e4 b6 h3 f6 d2 b5 h2 b7 e3 f7+ Ke7 b6 e2 g5 e1R g6 a4 f5 a3 f6+ Kd6 g7 a2 Nh3 h4 Nf2 Nh6 g8R Qe7 Bb5 Re5 Rg7 Ra6 Qe2 d1R Bd2 Ng4 Kb4 Ne3 c4 Reh5 Be1 R5h6 Nc3 Qe5 Ng4 Rd5 Qd3 Nd1 c5+ Ke6 Kb3 Nc6 b8N Nd4+ Kb4 Nf3 b7 Rb6 Na6 Rdd6 b8N Bb7 Nc6 Ba8 Na5 Be4 c6 Bg6 Nb3 Rg8 Rf1 h1Q Qe2 Qg2 Rh1 Qf2 Rh3 Nh2 Nc7+ Kf5 Rb1 a1B Rc1 Bb2 Na1 Rgh8 Rb1 Bc1 Rb3 Be3 Ra3 Kf4 Qd3 Qa2 Qe2 Bd2 Qd3 Be7 f8R Kg5 Rfa8 Rhb8 f7 Kf4 f8Q+ Kg5 Qe8 Bf8 Nf2 Kf6 R8a5 Qh5 Qee2 Qe5 Rg8 Ke7 Ng4 Kd8 Rg7 Nf3 Rh1 Kc8 Rb3 Rh5 Raa3 Rh7 Rb1 Rh6 Rh3 Nh2 Bf2 Nb2 Rh1 Nd1 Be1 Rd4+
4bQ1n/Nrp2Rn1/rBR2Bb1/2q3B1/pRq1R3/1r1Bb1P1/6N1/Q1bK3k w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 f4 Kd6 d4 h5 g3 a5 f5 e5 b6 e3 b5 e2 f6 e4 f7 h3 b7 h4 b6 h2 Qa4 h3 Ra3 Bd7 Re3 Na6 b8B Nh6 b7 Nc5 Qd1 a4 Nc3 Qh4 Rd3 Ne6 Bg2 Be8 Re3 Ra6 Nf3 Ng7 Rf1 h1R Ba7 h2 b8R Qg5 Kd2 e1Q+ Kc2 Qe5 Rb4 Qe2+ Bd2 Be7 f8Q Qc4 Bb6 Nf7 Nh4 Rh6 Rf5 Nh8 Qa1 Rb1 Rf7 h1B Bf1 Rb3 Kd1 Bf3+ Be2 Bh5 Ng2 Bg6 Bd3 Ra7 Re1 Rb7 Bg5 e3 Bf6 Kd7 d6 Ke6 d7 Bc5 Nb5 Kd5 d8B e2+ Kd2 Qd6 Na7 Qe5 Rc1 e1B+ Kd1 Bd2 Bg5 Be3 Bdf6 Qf5 Rc2 Bc1 Re2 Qf2 Re6 Qe3 Rc6 Qg1+ Bf1 Ke4 d5 Kf3 d6 Bf2 d7 Bfe3 d8R Qf2 Bd3 Qfc2+ Ke1 Qc5 Rdd6 Q2c4 Kd1 Kf2 Rd8 Kg1 Rd4 Kh1 Re4 Rh4 Re5 Rd4 Ree7 Rd8 Re4 Ra8 Nc8 Ra5 Na7 Ra6
B1k1NNq1/2p2KnB/n1b2Pnb/B2Q4/3Rq3/1p1R1Qrn/2r5/RR4bB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 Ke4 b5 a4 h5 f4 b3 d4 b4 g4 b2 g5 b3 g6 h3 f6 h2 Kf5 h4 d6 e4 a5 e3 f7 e2 g7 e1B Kg6 h3 f5 Qe7 a6 Bd2 a7 Qe2 d5 Qf2 Na3 b1Q Nc4 Qd4 Nf3 Nf6 g8B Be3 Nh4 Bb7 Bh7 Ne8 Bd2 Qbe4 Ba5 Bg1 Bg2 Bh6 f8Q Kc8 Kf7 Bc6 Ng6 Rg8 f6 Na6 Qf3 Qb6 Qe7 Qb8 Nf8 Rg3 Qe5 Ng7 d7+ Kb7 Ng6 Qh8 d6 Re8 d8R Re6 Rd7 Kc8 Qd4 Re5 a8B Rc5 Nd2 Rc2 Qd5 Bc5 Rhf1 h1N Rfb1 h2 Nc4 Nf2 Bh1 Nh3 Nf8 Bg1 Qg2 Nf4 Qf3 Kb8 Rd8+ Ka7 d7 Ng6 Bg2 h1N Nd6 Nf2 Ne8 Nh3 Bh1 Bhe3 Rb8 Bd2 Rb4 Bh6 Rd4 Kb8 d8R+ Ka7 Rd7 Kb8 Rd3 Kc8 Qc4 Ra2 R7d4 Rc2 Qd5 Qg8+
2r1QK1B/Nrp4P/2BN1n2/1p3qQb/4rbR1/N3nR2/4N2B/1n1qB1nk w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Kd4 g5 f4 b5 a4 e6 h4 b3 h5 g3 h6 g2 h7 b2 f6 g4 a5 g3 f5 Qe8 a6 Qh5 f7 Qg5 a7 Qe7 f6 Bd7 Qh5 Qd8 Ne2 g1N Ra3 g2 Qg5 Qc8 Rf3 Bc6 Rh4 Bb7 Na3 b1Q Rg4 Qd8 Bb2 Bh6 f8B+ Ne7 f7 Nd7 d3 Rc8 a8Q e5+ Ke4 Qa1 d4 Qd1 Bg7 Nf5 f8B+ Qe7 Bc3 Ne3 Be1 Rb8 Bf6 Bc8 B8g7 Rb7 Qb8 Rg8 Bh8 Qe6 Qa8 Nh3 Bfg7 g1N Bg2 Nf4 Bf6 Nb6 Bfg7 Nh5 Bh1 Bd7 Qe8 Nbc4 Bg2 Qf6 Bh1 Qf8 Bf6 Be6 Bfg7 Bf7 Bf6 Nc2 Kf5 e4 Bfg7 e3 Bg2 Be6+ Kg6 Nd2 Bh1 Qf4 Bg2 Bf5+ Kf7 Nb1 Bf6 Rg7+ Kf8 Bg6 Bh1 Bf7 Qe4 Qf5 Be5+ Kd7 d6 Ke6 d7 Nf6 Bg2 Bh5 Bh1 Qf4 Qeg6 Kd5 d8N Qf5 Bf4 Ke4 d5 Qd2 d6 Qd1 d7 Rg8+ Kf7 Re8 Nc6 Reb8 d8N Rc8 Qh4 Bg5 Na7 Bh6 Bh2+ Bf4 Nc1 e2 Kf8 Ne3 Qe8+ Qe5 Nf7 Qe6 Beg3 e1R Qg5 Re2 Be1 Qe5 Qd8 Qf5 Nd6+ Kd5 Rf1+ Ng2 Nf7+ Ke4 Nd6+ Ke3 Bf2+ Kf3 Qe8 Re6 Ne2 Qdc2 Rc1 Qcd3 Rc6 Qd1 Be1 Re5 Rc3+ Re3 Bd2 Kf2 Rd3 Re7 Rdg3 Ne3 Bc6 Re6 Rh3 Re4 Be1+ Kf1 Beg3 Kg2 Be1+ Kh1 Rhg3 Ra8 Rf3 Rc8
2b3n1/1P1B2rN/r1b1QbQB/R5np/K2B2N1/2R1Bqk1/n4Rpn/R3q3 w - - 0 1 illegal: No proof kernel
3Q1n1n/BpBK1R1r/Nb6/1Pb2b2/5B1N/1QqR2B1/p3nQQ1/k3rqn1 w - - 0 1 illegal: No proof kernel
bBn4R/p1q5/2nk4/2nr4/Q2RpN1b/1NBn2P1/1rQRqb2/K2BB1R1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 f4 h5 d4 e5 Kd2 c5 Kc2 c4 Kb2 e3 f5 e2 g3 e1Q f6 e4 b6 h3 f7 h4 b7 h2 b5 h3 d6 Bh6 f8Q Qea5 d5 Ne7 b6 Nbc6 b8B Bb7 Qf2 Qa6 Be2 Nc8 Qa4 Bg5 Bd1 Qc7 Qfc2 Rd8 Nd2 Bh4 Nb3 c3+ Ka2 Qd3 Bd2 Qf1 Be1 Qe2 Qb2 c2 Rb1 c1B Qc2 Rg8 Ka1 Be3 Rb2 Rg5 Bc3 Qg4 Ne2 Bf2 Rg1 h1N Nf4 h2 Ra2 Qe2 Rb2 Kd8 d7 Ke7 d8B+ Kd7 d6 Rd5 Nh3 Ke6 d7 Kd6 Nf4 Bc5 Ng2 Nf2 Nf4 h1N Bdf6 Be3 Be1 Nd3 Bfc3 Nc5 Ra2 Nf2 d8R+ Ke7 Rb2 Nfd3 Ra2 Bf2 Rb2 Rf5 Rd4 Re5 Qc1 Rd5 Rd2 Kd7 Qc2 Qd8 Be5 Rb8 Bd6 Ba8 b7 Qc7 Be5 Nb6 Bd6 Rf8 b8R Nc8 Be5 Nd6 Qb5 Qb7 Qa4 Rf7 Rh8 Nc8 Na5 Qb8 Ng6 Ke6 Bd6 Rb7 Nf4+ Kd7 Be5 Rb2 Nb3 Qb7 Bb8 Qc7 Ne6 Ke7 Nf4 Kd6
3n1nnR/pB1rQ1K1/NN1q4/QP1RN2p/R2b3r/B3q1n1/N2R2bq/1k6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 f5 g4 h3 g5 h6 g6 c4 g7 h2 d6 c3 d7 c2 d5 Kb3 b6 f3 d6 f2 b7 f4 Ra4 f3 Qe1 Na6 b8N Be7 Qa5 Bg5 Bg2 f1N Nc3 f2 Na2 Nc7 Na6 Nd2 Nf3 f1N Kf5 Ng3+ Kg6 Bh4 e5 Bf6 e6 Nc4 e7 Nb6 e8Q Bd4 Qe7 Ne6 Ne5 Bb7 Kf7 Qc7 d8R Nd7 Bc6 Ndf8 d7 Qd6 Bg2 Nf6 g8N Bc6 Rd1 h1Q Rd2 Qh2 Rc8 Rb8 d8R Rb7 Rd7 Nd8+ Kg7 Rc7 Bh1 Bg2 Rb8+ Qb6 Rd5 Rd7 Ra8 N6h7 Nf6 Qd6 Nfg4 Nf6 Nc4 Ng8+ Nge5 h5 Rc8 Rh6 Nb6 Rf6 Ra8 Rf4 Rc5 Bh3 Bb7 Bg2 Rd5 Rh4 Rc8 Qc5 Rc6 Qb4 Rh6 Qd6 Rh8 Qc7 Rf2 Qb8 Bd2 c1Q Bb4 Qd2 Ba3 Kc2 b4 Qd6 b5 Kb1 Re2 Qe1 Rd2 Qe3
r1q1Q1n1/pB1Q4/N2BQ1NP/2N1Qrk1/1n1RqRn1/3rb2p/6N1/1b4Kn w - - 0 1 illegal: No proof kernel
4K2N/1rBN2nb/Brr1p1R1/7p/2N1Q1r1/3BQr1P/1nb1r1k1/2BRq1N1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 axb5 e6 e4 Bd6 f5 Bf4 g3 f6 e5 fxe5 gxf4 e4 Ke2 Kf7 b4 Kf6 c4 a5 b6 g5 c5 h5 b5 d5 b7 d3+ Ke3 d2 Kd4 e3 b6 a4 h3 e2 c6 e1R Kc5 a3 c7 g4 Qa4 d1B Ra2 d4 Kb5 g3 Be3 d3 Qb4 d2 Qa5 g2 Qa6 Rh7 Qa7 Bc2 Bd3 d1R Nd2 Nh6 Nc4 Nd7 Kc6 Rb1 b8B Re2 b7 Nc5 Bc1 Na4 Qe3 Nb2 Ra1 a2 Qe4 Kf7 f6 Ra3 f5 Qd4 Rh2 Qc3 Kd6 Bd7 c8B Bc6 Bc7 Qe1 b8Q Bd5 Qe3 Be4 Kd7 Ra6 Qb7 Rc6 Qb4 Rg7 Ba6 Rg4 Nf3 g1R Rg2 Rf1 Ng1 Rf3 Rg3 Na4 Qb7 Rbb6 Rb1 a1R Qa8 Rg7 Rg6 Nb2 Kd8 Ra4 Ra1 Kg8 f7+ Kh7 f6 Nf5 Kd7 Rab4 Ke8 Rb7 Rb1 R4b6 f8N+ Kh8 Rg3 Rg4 f7 Kg7 Ng6 Kf6 f8N Bd1 Nd6 Bc2 Nh8 Ke5 Ra1 Rgf4 Rg6 Rg4 Nd7+ Kd5 Qf4 Kd4 Qg3 Kd5 Nc4 Kd4 Nd2 Ke3 Qe5 Kf2 Nc4 Kg2 Qf4 Rgg3 Qe3 Rg5 Bd2 Rgg3 Rd1 Rg4 Bc1 Nh4 Rg5 Bh7 Rg6 Nf5 Qd8 Rgg3 Qh4 Rg5 Qhf4 Rg4 Qfe4 Ng7+
B1b1nR2/r1pkNKb1/3BNn2/1rRQB3/2n2P1n/8/1NBp1rQN/2qr4 w - - 0 1 illegal: No proof kernel
1r1q2r1/2q2q1K/Q2pNRNn/2Q2B1Q/4N1n1/BN1PR2p/b1Q1n2n/4kn2 w - - 0 1 illegal: No possible last move, all moves rejected
2n1Nb2/2R3N1/2b1r3/npq1QR2/B2N1Npq/K1nR1q2/b2q1RP1/k5BQ w - - 0 1 illegal: No possible last move, all moves rejected
kbR3N1/3N3q/rR5n/4pqp1/r3N3/q1R1P1Qr/q4n1B/NB1QnKR1 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h3 Bb7 h4 Be4 h5 Bg6 hxg6 f5 Ra3 fxg4 Ra2 Nc6 Ra1 Nb8 f4 d5 c4 Kd7 b4 Kc7 e3 Kb7 b6 e5 b5 a5 g7 h5 f5 a4 c5 a3 f6 h4 f7 a2 Qc2 h3 Bc4 h2 Qd1 d3 Ne2 d4 Nec3 d2+ Kf1 d3 Ne4 g3 Na3 Qe7 Nc2 Nc6 Rg1 Nh6 g8N Nb4 c6+ Kb8 b7 h1Q Rb1 a1Q Ba2 Ra4 c7+ Ka7 b8N Ka8 c8R g2+ Kf2 Qc5 b6 Bd6 Nd7+ Bb8 f8Q Qcc3 Qf6 Qa3 Qf4 Q1b2 Na1 Nc2 Rc6 Ne1 Qg3 Qh3 Rc3 Qf5+ Qf4 Qh7 Qg3 Qbb3 Rb2 Qd5 Bb1 Qda2 Rb4 Ra6 Rbc4 Ra4 Rc8 Qf5+ Qdf3 d1Q+ Bd2 Qh7 Qe2 Qdc2 Qd1 Ra6 Rh1 g1N Kf1 Nh3 Rg1 Nf2 b7+ Ka7 R3c5 Ra4 Bb4 d2 Rc3 Ra6 Nef6 Qcf5 Ne4 Bc7 b8R Bd6 Qb3 d1R Rb6 Rd4 Qd1 Bb8 R3c4 Nc2 Be1 Ka8 Rc3 Rda4 Qgf3 Nh1 Bg3 Ne1 Bh2 Nf2 Ne7 Re8 Ng8 Re6 Qg4 Rd6 Qg3 Rdd4 Nd6 Rh4 Ne4 Rh3
2RQ1b1q/3p3Q/5R2/1N1r2q1/B1RPbNr1/1pq1rR1b/B1B4q/1K2Bn1k w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b3 b5 Ba3 b4 Bc1 Nc6 Rh3 Na7 Rh1 Nb5 cxb5 a4 Qf3 axb3 Qe2 Ba6 Qd1 Bc8 g4 Kf7 d4 Kf6 Kd2 Kg5 a4 Kf4 f6 h5 g5 e5 g6 c5 b6 e4 g7 h3 b7 h2 b8R b2 Kc2+ e3 f7 c4 a5 h4 a6 c3 a7 h3 Bd2 Nf6 g8B Rh4 Qh5 Ba6 Ra3 Nd5 Be1 e2 Rc8 Rg4 Qh7 Qg5 f3 Rb8 a8B Rb5 Bc6 Rc5 Ba4 Ne3+ Kb3 c2 Ka2 c1R Nc3 Rd5 Nb5 Rc3 Kb1 Rd3 Bg2 Nf1 Rc4 Ke3 f4 Rc3 f5 Bb7 Bd2+ Kf2 f6 Re3 Be4 Kg3 Bec2 Kg2 Be1 Ba8 Ka2 b1B+ Ka1 Ba2 Rc8 Bc4 Kb1 Bd3 Rac3 Be4 R3c4 Bb7 Nf3 Ba8 Ne5 Bf5 Ng6 b3 Nf4+ Kf3 Rg1 h1Q Rg2 Bc6 Rf2+ Kg3 Rf3+ Kh2 Qh5 Qg1 Bh7 Kh1 Bg6 h2 Qh7 Bh6 f8R Be6 Rg8 Bf8 f7 Qg3 Bge4 Qh3 Rg6 Qhh4 Qg8 Qh8 Rf6 Bf5 Bed3 Bb7 Qh7 Be4 Rh3 Bg2 Rf3 Bh3 Kc1 Ba8 Bb1 Bc6 Bdc2 Bb7 Ba2 Ba8 Bg3 e1Q+ Kb2 Qc3+ Kb1 Kg1 Be1 h1Q Rf2 Qh2 Rf3 Ba3 f8Q Kh1 Qd8 Bf8 Bf5 Rd6 Bd3 Be4 Bc2 Rd5
n2n4/BBR1K2k/4Q1R1/8/R4N1p/q1n1Qp1P/nn1BB2r/Nb2nrRq w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 Kd3 Kf7 Kc4 Kg6 Kd5 h5 Kd6 a5 c4 a4 e4 d3 b4 a3 b6 a2 e5 d2 b5 Kh6 f5 g5 f6 g4 b7 g3 e6 g2 e7 Qf8 b6 Nc6 b8B Kh7 f7 Nd8 c5 Nf6 c6 Nd5 b7 Nb6 Ne2 g1N Nf4 Ne2 c7 Nc3 Qb3 d1N Rg1 Nb2 Be2 f1Q Nd2 Qe1 Rg6 Qh1 Qe6 Ra6 Rb1 a1N Nb3 Nc2 Ba7 Na2 b8R Ne1 Bd2 Na8+ Rb6 Bb7 c8B Be4 Na1 Bc2 Rc1 Bb1 Rc7 Ra5 Ra6 Rc5 Nh3 Rc1 Ra4 Rd1 Bb7 Rc1 Ke5 d5 Kf6 d4 e8Q d3 Nf4 Qa3 Q8e7 Rd1 Qc5 Rc1 Ke7 Rd1 f8R Rc1 Bb4 d2 Rfg8 d1N Qce3 Ndc3 Rg1 h4 R8g6 Rg8 h3 Rc2 Bea6 Rf2 Be2 Rf1 Rf6 Rg2 Rg6 Qb3 Ba5 Rh2 Bb4 Ne4 Bd2 Nec3 Rac4 Qa3+ Rb4 Qb3 Ra4 Qa3+
qQBQBQ1b/2pQB2b/1bN1br2/B1b3p1/2Rn2P1/1K2N1b1/1n5k/q4R2 w - - 0 1 legal: proof: h4 f5 a4 d5 c4 dxc4 e4 fxe4 h5 a5 Nh3 b5 axb5 g5 Ng1 Ra6 Ra2 Rb6 Ra1 Rg6 hxg6 Bf5 Na3 Bd7 Nb1 Bc8 d4 Kd7 Kd2 Ke6 Kc3 Kf5 f4 e5 b4 h5 g3 e3 b6 e2 g7 Kg4 b5 a4 b7 h4 f5 h3 f6 e4 d5 e3 b6 a3 d6 h2 f7 a2 d7 Ne7 g8B Na6 b8B Rh6 b7 Nb4 Qa4 e1B+ Bd2 e2 Na3 Nf5 Nc2 Nd3 Rc1 Nb2 Nf3 a1Q Ba7 Bf2 Bc5 e1B Nfd4 Rf6 Qc6 Bg7 f8Q Bh8 Be6 Bg1 Bd3 Kh3 g4 Bg3 Be7 Be3 Rhg1 h1B Rgf1 Be4 Kb4 c3 Kb3 Kh2 Bb5 Ng7 Ba4 Bh7 Qd5 Nf5 Qb5 Bef4 Ne3 c2 Ba5 Bd6 Qd3 Qe8 Bb5 Bc5 Qd1 Qg6 b8Q Bb6 d8Q Bd7 Bec4 Be6 Be8 Bc5 Bd2 Qa8 Nc6 Bb6 Be1 Bc5 Q1d7 Nd4+ Kc3 Qf5 Ba6 Qf2 Bd2 Qe1 Bc8 Bb6 Ra1 Qc1 Ra4 Qa1 Rc4 c1B Kb4 Nd1 Bc3 Bd2 Bb7 Nb2 Bc8 Nf5 Kb3 Bc5 Bd4 Ba5 Bc3 Bab6 Ba5 Nd4+
b2n2Rn/2RKpN2/n1bbpN2/4PB2/BQ2n1rk/2B1n1bq/1N5N/4B2Q w - - 0 1 illegal: No proof kernel
b1R3b1/NQ3pbN/n2r1bRr/K1b3Q1/5PR1/4Bq2/2N1NRpk/2r1r2B w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 hxg4 d3 c5 Ne2 d4 Ng1 Nc6 Ra5 Nb4 Ra1 Nd5 exd5 c4 Be3 cxd3 Bf4 Qc7 Bc1 Qd8 Kd2 Kd7 b4 Kd6 h4 Ke5 c4 Kf4 h5 g5 c5 a5 h6 e5 d6 e4 h7 g3 b6 a4 b5 g4 b7 a3 b8R a2 b6 Nf6 c6 Nd5 b7 Nc7 d7 Bg7 Rh2 Ra6 Na3 Qf6 d8N Bf5 Bg2 Rb6 f3 Na6 c7 Rd6 c8N Bg6 Na7 e3+ Ke1 Be4 Nc2 d2+ Ke2 Bd5 Kd3 e2 Bh1 Be4+ Kc4 d3 Rb1 a1B Rb4 e1R Kb5 Qf5+ Ka4 Baf6 Rc8 Qd5 b8Q Qf5 Nd4 Ba8 Rf2 g2 N8e6+ Kg3 Qb7 Kh2 Nge2 Qf4 Qb3 d1R Nf8 d2 Qc3 g3 Qc5 Qg4 Ba3 Rc1 Qg5 d1B+ Ka5 Bc2 Rbc4 Bg6 Nc2 Qe4 Bc5 Qd3 Rf1 g1B Rg4 g2 f4 Bgd4 Rf2 Qf3 Bb6 Ba1 Be3 Bfd4 Nd7 Bc5 Nf6 Rhd8 h8R+ Bh7 Re8 Rc6 Re4 Bg8 Nh7 Rh6 Re6 Rd6 Rg6 Baf6
3R2N1/1pbB1nN1/1Q2b1k1/1Q2R3/3Bb2B/K1qnq1bB/1P1R1b1p/1R2b1r1 w - - 0 1 illegal: No proof kernel
1QB5/1R1nQ3/2qn1K2/4pRNk/n1qpbR1b/q1BQP3/4Nn1q/1r1R3Q w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kf7 Kd3 Kg6 Ke4 e5 c4 h5 b4 d6 f4 a4 e3 a3 f5+ Kh7 f6 Kg6 c5 d3 f7 d2 b6 g2 b7 g3 c6 a2 c7 h4 b5 h3 b6 h2 Bb2 Nd7 b8R Qf6 b7 Nh6 Nc3 Nf5 Nge2 g1Q Bh3 Be7 f8R Kh5 g6 g2 g7 Qf1 g8Q g1Q Qd5 Qg3 Rg1 h1N Qd3 Qh2 Rg4 Nf2+ Kd5 Qg6 Rf4 Bh4 Ne4 Rg8 Qe1 d1N Bc3 Nb2 Ng5 Na4 Rd1 a1Q Rf6 Qh6 Ke6 d5 Kf7 d4 Ke6 Qfg2 Qh1 Nd6 Ke7 Qh8 R6f5 Qc6 Ke6 Qa3 Ke7 Qh7+ Ke6 Ndb6+ Kf6 Be6 c8Q Bd5 Qc7 Be4 Qd8 Qhc7 Qe7 Rh8 Rd8 Qc4 Rd7 Q7c6 Rc7 Ra8 b8Q Ra5 Rb7 Rb5 Rf3 Rb4 R5f4 Rb1 Bc8 Qc1 Rf5 Qa3 R3f4 Nd7+
N7/p1Kq3N/1pnnQ1Q1/PBb1BpNR/2nBr1R1/N3r3/1b5B/b4k1r w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 h5 Qf3 hxg4 Qe2 Qd7 Qd1 Qd8 f3 e5 Kf2 e3+ Kg2 e2 Nc3 e4 Nb1 e3 Nh3 Bf5 Ng1 Be4 fxe4 Qg5 Qe1 Qf6 Qd1 Qd8 Kg3 Kd7 Kf4 Ke6 c4 e1R h4 f5 d4 e2 a4 g6 c6 g3 d5+ Kd6 a5 Kc5 Ke5 g5 h5 g4 c7 g2 c8N g3 d6 Nf6 h6 Ne8 d7 Nf6 h7 Bh6 Na3 Kb4 Kd6 Kc3 e5 Re8 h8B Bf4 c5 Ng4 c6 Nf2 c7 Nc6 Nh3 g1N Nb6 g2 c8Q Nf3 Be3 g1B Ng5 Nd2 Rh5 Kd3 Bd4 Rb8 Na8 b6 Qa4 Qe7+ Kc7 Nc4 Qb5 Bc1 e6 Ne4 Bhe5 Bb2 Ra2 Qf8 d8B Nd6 e7 Bf2 Bh2 Qg8 Bde5 Bc5 Qe6 Ke3 Qg6 Kf2 Qb3 Rd1 Ra1 e1B Rb1 Beb4 Bd3 Rh1 Rg1 B4c3 Rg4 Ba1 Bf1 Bcb2 Bd4+ Ne3 Bb5 Qe6 Bde5 Nec4 Qa2 Kf1 Qb3 Rf8 e8N Qg8 Nf6 Re8 Bd4 Re3 Nfh7 Qf7+ Be7 Re8 Bde5 Qe6 B7f6 Qg8 Bd4 R8e4 Bfe5 Qe8 Ba4 Nd2 Qbe6 N2c4 Bb5 Qd7+
B1Q3K1/NnrN1r1Q/bb1r3n/RB2R1qk/8/4ppR1/pP1qRbB1/4B3 w - - 0 1 illegal: No possible last move
QbB3br/qQb4k/1Nn5/4B2p/2p2B1P/1q1p2rQ/5Bn1/RNQ2KqR w - - 0 1 legal: proof: d4 b5 c4 e5 g4 f5 a4 exd4 axb5 d5 cxd5 fxg4 e4 Kf7 b4 Kg6 f4 a5 h4 c5 d6 h5 b6 c4 d7 a4 b5 g3 f5+ Kh7 f6 g5 e5 d3 b7 g2 e6 a3 e7 g4 e8Q a2 b6 g3 f7 Bd6 f8Q Bc7 Nh3 g1Q Qe3 g2 Nf4 Nf6 Qh3 Qh2 Nd5 g1B Bf4 Ng4 Qc1 Nc6 b8Q Ne3 b7 Ra5 Be2 Ng2+ Kf1 Ba7 Nb6 Rg5 Bg4 Rg6 Qa8 Bab8 Qb4 Qf6 d8B Qb2 Bf6 Qb3 Bd4 Be6 Bf2 Bg8 Bc8 Rg3 Qb5 Be5 Qba6 Bbc7 b8B Bed6 Q6b7 Be5 Na3 Bd6 Rb1 a1Q Be5 Qd4 Ra1 Qc5 Bf4 Qa5 Nb1 Qa7 Be5 Be6 Nc3 Bg8 Nd7 Ba5 Bf4 Be5 Nb1 Bb6 Bd6 Ba5 Ba3 Bd6 Bb2 Bb8 Bbe5 Bac7 Nb6 Qg1+
1Rnr1k2/NN1B1B1q/q2K2Q1/r4B1p/p1PN3b/1Q1b4/2p1N1rn/2R1B2b w - - 0 1 illegal: No proof kernel
R1B2N2/B3r2b/1qnQn3/3PbRRp/4Q1B1/R2q1KN1/1k2B1pp/1q1rb3 w - - 0 1 illegal: No proof kernel
q4B1k/1bnN2b1/Q1B2Q2/3p1B1N/n2pr1q1/5Qrp/1R1QP1rB/3RKq2 w - - 0 1 illegal: No possible last move, all moves rejected
b2r1B1N/K2kq3/2Rn1n1p/Q2p1Rpr/Pq5b/QN5n/QB3B1Q/3B3q w - - 0 1 illegal: No proof kernel
n1r1B2R/1Qb2R2/1N1r2pB/1bp2BK1/5p1r/Q3b2P/Rn1k1BN1/1R2qq2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 b4 Kd6 d4 a5 e4 c5 h3 f5 e5+ Kc7 d6+ Kb6 d5 f3 Kg3 g6 Kf4 f2 e6 g3 e7 g2 e8B a4 d7 a3 d6 a2 Ne2 g1Q Na3 Bg7 Qd3 Qe7 d8R Nh6 d7 Ba6 Rb1 a1B Rh2 Nf7 Nc4+ Ka7 Qa3 Bgd4 Bg2 Nd6 Nb6 Qf1 Be4 Nc4 Bc2 Qe5+ Kg5 Be3+ Nf4 Rh4 Rc8 Nb2 d8B Nd7 Rc7+ Kb8 Bf6 Qc3 Bd4 Qce1 Nd5 Nb6 Rf7 Kc8 Bd2 Rb8 Bd3 Na8 b6 Kd8 b7 Rc8 b8Q Bc4 Nb6 Bb5 Rf6 Ke7 Qb7+ Bd7 Rf7+ Kd6 b5 Bc6 Bf6 Bd7 Be7+ Ke5 Bf8 Kd4 Bh6 Qg1+ Rg2 f1R Bc2 Rf2 Bb4 Qef1 Be1 Rd2 Bf2 Qe1 Bd3 Qgf1 Rh2 Be6 Be4 Bb3 Bd3 Kc3 Be4 Rd6 Bd3 Bd4 Ng2 f4 Bf5 Kd2 Rh1 Nc4 Rb2+ Bc2 Ra2 Nb2 Rg1 Be3 Rh1 Qd3 Rg1 Ba4 Rf1 Qee2 Rb1 Qe1 Qe7 Rdc6 Nd5 R8c7 b6 Bb5 b7 Qdf1 Rf8 Rc8 Nb6 Re6 Rh8 Rf6 b8R Re6 Bc2 Nd3 Rb7 Be5 Qf7 Nb2 Bf5 Bb8 Ra7 Rd6 Qd5+ Bd3 Rf7 Bc7 Qb7 Bb5
Q4N2/6r1/1b1KQp2/qp1N3p/qBBbb1QP/4Qr1n/2r4B/1k1B1RRn w - - 0 1 legal: proof: d4 b5 b4 g5 f4 e5 dxe5 gxf4 a4 c6 axb5 Ke7 b6 Ke8 b5 cxb5 Kf2 Ke7 Kf3 Ke6 Ke4 a5 h4 h5 g4 a4 c4 f3 c5 f2 b7 a3 g5 a2 c6 f6 c7 d6 g6 Ra7 g7 Na6 b8B Ne7 Nf3 Nd5 Nc3 Nf4 Bd2 Nb4 Rg1 d5+ Kd4 Kf5 g8Q Bd6 e6 Nh3 e7 Nd3 e8Q Bb7 Ng5 Bb4 e3 Ba5 Nh7 Bc6 Rc1 a1B c8B+ Rd7 Bb7 Rg7 Bh2 Bb2 Be2 f1R Ra1 Ndf2 Kc5 Qa8 Kd6 d4 Qc4 Qa6 Qa8 Rc8 Nf8 Bb6 Rc1 Bf3 Bd5 Nh1 Qdb3 Rf2 Rcf1 d3 Be1 d2 Qcb4 Rg3 e4+ Kf4 e5+ Ke3 e6 d1Q e7 Rg7 Q4a4 Qa5 Qg4 Qda1 Be6 Q1a4 Bd1 Kd3 e8Q Rcc7 Bd5 Be4 Qee6 Rf3 Qa3 Rc5 B5b3 Rcc7 Nd5 B2d4 Bb4 Rc3 Bc4+ Kd2 Qa2+ Kc1 Qb3 Rc2 Qe3+ Kb1
1R1qQ1B1/K2B3R/1r2pb2/n1qbB1pb/q1QN1pN1/k2B4/1n3R1P/2R2r2 w - - 0 1 illegal: No proof kernel
BrNrqqRR/3QrB2/p1Pnb1RR/4B3/1Nn5/p5Q1/K2pb3/5kbB w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 cxd4 Kd2 Kf7 c4 h5 Kc2 d5 b4 e5 Kb2 a6 f4 e4 g4 d3 f6 Ke6 f7 a3+ Ka2 d2 c5 e3 g6 e2 g5 Kf5 b5 Kg4 f5 Kg3 f6 Kf2 b6 e1Q g7 h4 g6 h3 b7 h2 Nh3+ Kg3 Nc3 d4 Bg2 d3 Ne4+ Kh4 Nhf2 Qf1 Nd6 Kg3 Bb2 Ra7 Be5+ Kh4 Bc6 Nd7 b8Q Qe1 Ba8 Nh6 g8B Nb6 c6 Nc4 g7 Be6 Nc8 Bc5 f8R Nf5 Bf7 Nfd6 g8B Re7 Rg1 h1R Rg6 Rf1 Bh7 Rh1 Rfg8 Qf8 Qc7 Qe3 Qb3 d1B Qd7 d2 Nd3 Kh3 Nb4 Rh2 Rb1 Bdg4 Rh1 Kg2 Qd3 Rh6 Rh5 Qe4 Qg3+ Kf1 Rh3 Rh5 Rh4 Rg5 Rhh6 Bh5 Be8 Bg1 f7 Qg7 f8R+ Qf7 Nc2 Be2 Nb4 Qff4 Bf7 Rf5 Bf6 Rb5 Be5 Rd5 Rg4 Qee3 Be4 Rb5 R8g6 Rb8 Bh1 Qee4 Rfg8 Qff5 Rgh4 Qff4 R8g7 Rd8 Rh8 Qh6 Rgg8 Qf8 Rh2 Qf3 R2h3 Qe8 R3h6 Qf6 Qb7 Qg7 Qd7 Qgf8
Q1RKbq1q/Nr2Bnrp/p5pQ/5n2/1QRRnP1R/4k3/1bB1N3/1q1Q4 w - - 0 1 illegal: No proof kernel
2Q2N1k/2Q1bp1b/1q4R1/NB4pB/1n1r1bq1/p2N1nPK/2R3R1/rN2qR2 w - - 0 1 illegal: No possible last move, all moves rejected
2bRN2k/1R1P2b1/2nq1NRr/N4p2/6p1/1prQQ1Bn/KbBN3r/6qR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 f5 a4 Kf7 e4 g5 d4 Kg7 Kd2 c5 Kc2 b5 Kb3 g4 a5 f3 d6 c4+ Ka2 c3 d5 c2 a6 f2 h6+ Kh7 e5 Qb6 h5 Qb7 d7 Bd6 d8N Qc6 e6 Qc7 a7 Ne7 Ne2 Nd7 Qd3 Nc5 Bf4 c1B Ng3 Qd7 Nc6 Ba3 Na5 Re8 Ne4 Rg8 Bg3 Rh8 Nbd2 Nc6 e7 Be5 e8N Bg7 d6 Bab2 Rb1 Ne6 Bg2 Qe7 d7 f1Q Bf3 Qc5 Bd1 Ng5 Bc2 Nh3 Qe3 Rb8 a8R Qd6 Ra6 Qg1 Qd3 Kg8 Rb6 Rh7 N4f6+ Kh8 Rb7 Ra8 Re1 Ra6 Re7 Bf8 Rg7 Rb6 Rg6 Bg7 Nf1 Bc1 Nd2 b3+ Kb1 b2 Ka2 b1R Qe3 b4 Qd3 Bf8 Qe3 Rf7 h7 Rb3 Qf3 Nf4 Bh4 Bb2 Nfe4 Qe7 Rd6 Nd8 Qd3 Rc3 Nc7 Kg7 h8R Nh3 Bg3 Qf6 Re6 Re7 h6+ Kg6 h7 Bg7 Rf8 Rd6 Rh8 Nc6 Rd8 Kf7 Ne8 Kf8 Nc5 Qfd4 Rh6 Re2 Nce4 Rg6 N4f6 Rh2 Rh5 Qd6 Rg5 Rh6 Rg6 Bh8 Ng8 Bf6 h8Q Bd4 Qe5 Kf7 Qee4 Bg7 Ngf6 Kf8 Nd5 Kg8 Qee3 Kh8 Ndf6 b3+
5bN1/k1p3qb/N4RQB/3NK3/R2nBPp1/1Q1rRNqq/2r3pn/6bR w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 e5 d4 a5 b4 g5 h4 a4 b6 a3 b5 a2 d6 g3 b7 g4 b6 Kc6 d7 g2 d5+ Kc5 h5 Be7 d6 Ra3+ Qd3 Nh6 Nf3 Nf7 h6 Bf8 h7 Ng5 Nc3 Nc6 b8N Nd4 b7 Kb6 Na6 Ka7 Nd5 Rc3 b8N Rc6 Qb3 Rc2 Bd3 Qf6 d8Q Qg7 Rh3 Bf5 d7 Rg8 h8R Bh7 Qf6 Qh6 Rg3 Qh3 d8R Rg6 Nd2 Ngf3 Nd7 Nh2 Nf3 Rh6 Qg7 Rd6 N7f6 Rd7 Qg6 Rd6 Rb1 a1Q Ng8 Nb5 Ndf6 Qh6+ Ng5 Nf3 Qf5 Bg6 Qc3 Qa3 Rh3 Qg7 R8h6 Bh7 Rb3 Rd4 Rh1 Nh2 Rb4 Rd6 Re8 Rd7 Bd2 Qb3 Ra4 Rd4 Ke2 e3 Nd5 e4 Rf6 Qa3 Qg6 Qb3 Ke1 e2 f3 Qa3 Kf2 e1B+ Ke3 Bf2+ Kf4 e3+ Re4 e2 Ke5 e1Q Qb2 Qc3 Qb3 Bg1 Re2 Qh4 Be4 Qh3 Bf4 Qe1 Re3 Rdc4 Ne6 Rb4 Bh6 Rd4 f4 Qeg3 Ng5 Rd3 Nf3 Nd4
2b3rr/q1p4R/NRNk3q/Pr1B1QnN/3pqb2/p1Q1B2N/8/K2nQ2Q w - - 0 1 illegal: No proof kernel
b4Qqr/1p1b1B1r/n5R1/p3Bq1B/NQB1Q3/n5P1/1r1QNp1b/k2K3R w - - 0 1 illegal: Other
qrBN2k1/Npq2p2/Q2RN3/B5nN/6pb/PQ1KBnBr/3nb2R/2b5 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 c5 e4 g5 Ke2 c4 d4 b3 h6 b2 a3 c3 h7 c2 d6 f3+ Kd3 f2 e5 Qb6 d5 Bg4 e6 Bh6 e7 Qd8 h5 Bc8 Ne2 Qd7 Nd4 Ra4 Be3 c1B Bh3 f1N Rh2 Bf8 h6 Qg4 Ne6 Qf4 Qb3 Nf6 Nc3 Ne4 Nb5 Nfd2 Na7 Nc6 Ra2 Rg8 h8B Nd4 h7 N4f3 Be5 b1Q+ Rc2 Qf6 Bg3 Qh8 Bf5 Qbb2 Rc6 Qbe5 Bg4 Bg7 Rb6 Bf6 Ra6 Qg7 h8Q Qf8 Qh6 Rh8 Qg6 Rh3 Bf5 g4 Rc6 Bh4 Qf6 Kd7 e8N Neg5 N8g7 Qd8 Nh5 Ke8 Rb6 Bd7 Qg6 Bc6 d7+ Ke7 Qh6 Qa8 d8N Qc7 d6+ Ke8 d7+ Ke7 Neg7 Kf8 Nge6+ Kg8 Qf6 Bd5 Rd6 Bc6 Qfc3 Ra5 Qcc4 Ba4 Qa6 Re5 Ndc6 Rc5 d8B Ra5 Bf6 Rc5 Bc3 Re5 Ncd8 Rc5 Qa2 Bd1 Ba5 Rc4 Qb3 Re4 Nc5 Re8 Bd7 Rf8 Nce6 Re8 Ndc6 Rc8 Ncd8 Rb8 Bc8 Be2+
1kn2Bn1/pp6/1rB1Bpb1/1K3R2/1Qn1rq2/b3P1QQ/R1N2N2/q2Bq1Q1 w - - 0 1 illegal: No proof kernel
5rK1/1R1Rrr2/PN2pN2/1p6/1p3b1N/3Rr2b/1k1BqNBQ/Rn1r2nQ w - - 0 1 illegal: No possible last move, all moves rejected
3R2QQ/1r2pRnr/4N3/B1Q1b1qp/3bpnQ1/NK1P2b1/3R2bR/k2Bb3 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 f4 Kd7 b4 Kd6 g4 Kd5 b6 Kd4 b7 h5 b5 a5 b6 c5 d3 a4 Kd2 a3 Kc2 a2 g6 c3 g7 c4 f5 Rh7 f6 Ra7 f7 Nd7 b8Q Ndf6 g5 Ne8 g6 Ngf6 g8Q Bg7 f8R Rb7 Bd2 Nd5 Qc1 Nf4 Be2 Bh3 Rh2 Bg2 Nh3 Be5 g7 Qd5 Na3 Qb5 Rb1 a1B Ng5 Qc5 Rb2 Qa5 Kb1 c2+ Ka2 c3 Rf7 Qc5 Bd1 Qa5 Qb1 c1B Kb3 c2 Qa7 Qc5 Ba5 Bd2 Qh8 c1B g8Q Be1 Rd2 Ng7 Qc2 Bc3 Qab8 Bg3 Qbc8 B1b2 Qg4 Ba1 Re2 Bce1 Rd2 Rc7 b7 Bb2 b8R Rb7+ Ka4 Qd5 Rd8 Ba1 Qcc8 Bb2 Bc7 Kc3 Ne6 Qc5 Nc2 Ba1 Ba5+ Kb2 Qc7 Ka2 Na3+ Bab2 Qb6 Ka1 Kb3 Bed4 Qb4 Qg5 Qb6 Be5 Qb5 Bbd4 Qb4 Ra7 Qc5 Rb7+
R3QR1B/1B1bp1BB/1KPN4/QpbbN1Nr/b4b2/4qp1N/2r2n2/6nk w - - 0 1 illegal: No possible last move, all moves rejected
QnQ4K/N6n/BN1p2P1/1n1N3k/6pq/3bRp2/1Nr1rRnb/b1B3BB w - - 0 1 illegal: No proof kernel
4q2B/3Q3B/QnpbrpbR/NN2Q2b/4p1n1/2nr1R2/1P1k4/2n1RRQK w - - 0 1 illegal: No proof kernel
1b1Bk3/1r1br1Pp/pK1n1QN1/2R1p1N1/3QR3/1Bq1r3/Q4bN1/nN1b1Q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ra2 c5 b4 e5 Ke2 a6 f4 e3 Kd3 h3 Kc4 h2 g4 e2 d4 e1B g5 Bh6 b6 Bg3 b5 Bg7 b7 Ra7 d6 Nd7 b8Q Qa5 d5 Nh6 g6 Bf2 f5 Rc7 b6 Rg8 b7 Be1 f6 Bg3 f7+ Kf8 Qa7 Qe1 b8Q Bf2 Nf3 Qe3 Qbb3 Bf6 Ra5 Rb7 Nh4 Qh3 Qa2 Nb8 d7 Bd8 d6 Nf5 Ng2 Nc6 Bg5 Bc7 d8N Rg7 d7 Ncd4 Kd5 c4 Kc5 c3 Bc4 c2 Re1 c1R Re4 Rc2 Qf1 Re2 Bb3 Nc2+ Kc6 Bb8 Qd4 Na1 Rc5 Nd6 Bf6 Qe6 Bh4 Qf6 Ne6+ Ke7 f8N h1B Ngf4 Bf3 Ng2 Rf7 g7 Re1 Bg5 Bd1 Bh4 Rc7+ Kb6 Re2 Bg3 Qf3 Bf4 Qc3 Bg5+ Rf6 Bh4 Re3 d8Q+ Kf7 Ng6 Rb7+ Kc6 Rf4 Qg5 Ke8 Qf5 Bc7 Bd8 Bb8 Qg5 Rff7 Qf6 Rfe7 Ng5 Rbc7+ Kb6 Bd7 Qfe2 Ra7 Qf1 Rb7+
2Nb1BQ1/3n1Qp1/1p1Nq1Qr/5N1R/RQ2NpKP/2rb4/2n2r2/3bbB1k w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 d4 Kg5 a4 Kh4 e4 f5 e5 c5 e6 b3 h6 b2 e7 c4 e8N c3 a5 c2 d6 Qe7 d5 Nf6 d7 Rg8 d8Q Bd7 a6 Nh5 d6 Ng3 a7 Ba4 d7 Rh8 h7 Ne2 Qb6 Qe6 d8Q+ Be7 Q8d2 Bd8 Nd6 Nd7 Qdb4 Rc8 Nc3 b1B Ba3 c1B a8N Bd3 Qdb3 Bd2 Nce4 Rc3 Qa6 Be1 Nb6 Ng3 Qd5 Ne2 Nbc8 Bd1 Qac6 b6 h3 Nc1+ Ne2 Nb3 Ra2 Na1 Qdc4 Qg6 Qf7 Nc2 Rh2 Re8 Rh1 Re6 h8Q+ Qh6 Qhg8 Qf6 Kg2 f3+ Kh2 f4 Nd4 f2 Ra1 Qg6 N4f5+ Kh5 h4 Kg4 Rg1+ Kf3 Kh3 Qf6 Rg5 Qe5 Rh5 Rh6 Bc1 Qf6 Ra4 Qe6 Ba3 Bb5 Bd3 f1R Bc4 Rf2 Bf1 Nb8 Qce8 Nd7 Qg6 Bd3 Qef7 Re2 Nf6 Kf2 Kg4 Kg1 Nfe4 Kh1 Bb2 Rc4 Bf6 Rc7 Be7 Rc3 Bf8 Rf2+
5b1n/B1p1B1k1/1B1qP3/1rn5/1QQbB2n/Rb3pN1/1pQRbQ1K/r3N3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 g5 Kg2 f5 h4 Kf7 a4 b5 e4 f3+ Kh2 f2 d4 g4 e5 f4 a5 f3 d6 b3 e6+ Kf6 a6 b4 h6 b2 h5 b3 d7 Nc6 d5 Qe7 d8B Bd7 d6 Bc8 a7 Bg7 d7 Bb7 h7 Rb8 a8Q Na5 h6 Bf8 Na3 b1B Nc2 b2 Ra3 Nc6 Ne2 Ne5 Be3 Nf7 Bb6 Bd5 Qa6 Bb3 Ne1 Bd3 Ng3 Be2 Qc4 Kg6 Qd6 Nf6 Qdb4 Qd6 Be7 Ne4 d8Q Nc5 Bh3 Rg8 h8B Ra8 Bhf6 Nh8 h7 Rb8 Bg5 Kg7 Be3 Ra8 Rg1 Ra5 Rg2 f1N+ Kh1 Ra4 Qe8 Ra5 Qc6 Rb5 Bf2 Ne3 Kh2 Nf5 Ba7 Nd7 Bfb6 Nc5 Q6e4 Nh4 Qec2 Kh6 Rf2 Rg5 Rg2 Kg7 Rf2 Rd5 Rg2 Rd1 Rf2 Bd3 Rd2 Be2 Bf1 Rb1 Bh3 Ra1 Bf1 Bd1 Bd3 Be2 Be4 N4g6 Kg1 Nf7 Nf1 g3 Kh1 g2+ Kg1 Nh4 Ng3 Nf5 h8Q+ Kg6 Qhc3 Nh8 Qe3 Kg7 Kh2 g1B+ Kh3 Bf2 Kh2 Nh4 Bc6 Bd3 Be4 Bf1 Qee2 Bd4 Qf2 Be2
1n1Nb3/1Bp3Kp/1k1PR1N1/2R1qQ2/2p1QR1n/4B3/2R1rr1B/b1B1bnb1 w - - 0 1 illegal: No possible last move, all moves rejected
Q2nn2B/prNBB3/B5Q1/PNp5/3n1KR1/5pr1/k2b1Q1q/1rrbQR2 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 b4 exf4 c4 d6 bxc5 Qb6 c6 Qd8 c5 dxc5 Kf2 Ke7 Kf3 Kd6 a4 Kd5 h4 Kc4 d4 g5 e4+ Kb4 d5 b5 a5 f5 e5 Qd7 d6 Be7 c7 Rh7 e6 Bf6 e7 Bc3 e8Q Nc6 h6 Nf6 h5 Nd8 Rh4 Bd2 Qg6 Ne8 Qe1 Kb3 Rg4 b4 Na3 Qg7 d7 Qh8 Rb1+ Ka2 Ne2 b3 Nd4 b2 Ba6 Rb8 Nab5 Rg7 h7 Rb7 h6 Rg8 Kg2 f3+ Kg3 f2 Ne6 f4+ Kf3 Qe5 h8Q f1R+ Qf2 Qd6 h7 Rd1 Ke4 f3 Qe1 Qh2 Qd4 Rg7 h8B Rg8 Rg1 g4 Qdf2 g3 Ke5 g2+ Kf5 Nc6 d8Q Bd7 Qa8 Nd8 c8B Bc6 Rf1 g1N Nec7 Ne2 Bd7 Nd4+ Kg4 Bd5 Rg1 Bb3 Rf1 Bc3 Bg5 Bd2 Be7 Rg7 Rc1 b1R Rc4 Rdc1 Rb4 Bd1 Rc4 Rh7 Rb4 Rh3 Rc4 Nc2 Kf5 Rg3 Rg4 Ne3+ Kf4 Nf5+ Qee3 Nd4 Qe1 Bb4 Q3f2+ Bd2+
B1N1B1Rn/pp3r2/n1Nbn2P/Bk6/bBp3QR/2KQ1Qq1/r7/3b1Qn1 w - - 0 1 illegal: Other
1Q1bb3/1Q1N4/BB5r/KB1Pn1qp/7B/b1k3q1/1p2pNQ1/Q2nrRbR w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kf7 Kd2 b5 g4 e5 f4 c5 a4 h5 f5 b3 Kc3 e3 f6 b2 a5 c4 d6 Ke6 Kb4 Kd5 g6 e2 f7 e1B+ Nd2 e4 a6 c3 a7 b1Q+ Nb3 e3 g5 Bh4 g7 c2 g6 Rh6 Nh3 Bd7 Nf2 Nf6 g8B Ng4 g7 Qg5 Ka5 b4 Bb5 e2 Be3 c1B Nc5 Be8 d7 b3 d8B b2 Nd7 Ba3 Qg1 Qbg6 f8Q+ Qe6 Bh7 Qd6 Bhd3 Qg3 Qb4 Bd2 Rf1 Bc3 Ba6 Be1 Bdb5 Nc6+ Ka4 Nce5 Ka5 Rc8 a8Q+ Rcc6 Qc8 Rc1 Qb8 Bc3 Bb6 Re1 Bd2 Ne3 g8Q+ Nf7 Qg6 Ne5 Qb1 Nd1 Qa1 Q5g4 Bc1 Bd8 Bg5 Qf5 Bh4 Qfg5 Qh2 Bd2 Qh3 Be3 Qg2+ Qf3 Ng4 Bg1 Qe7 Ke4 Nf2+ Ke3 d5+ Kd2 Qb4+ Kc2 Qb7 Qfg3 Qd6 Kb3 Qdb8 Kc3
5R2/1BBn1RQ1/3bb3/1kpN2Kq/1N1Q2pp/r2q2b1/Qb1Q1nP1/N2r3N w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Qd6 Bd3 Qh6 Bf1 Qxh2 Ke2 Kd7 Ke3 c5 b4 g5 d4 e5 f4 a5 d6 h5 f5 a4 f6 h4 f7 g4 d5 a3 b6 a2 b5 Ra4 b7 Ra6 b6 Ra4 Nc3 Bg7 f8Q Ra5 Qa4+ Nc6 Ba6 Ne7 Nge2 Ng8 Rf1 Rh5 Ng3 Qh3 Rf7+ Ne7 b8Q Rf5 b7 Rf1 Qd4 Ra3 Qa8 Rd1 b8Q Bf6 Bb7 Nb4 Qg7 Nd3 Qa5 Nf2 Qba8 Rh1 Rb1 a1Q Bd2 Qb2 Rf1 Qb6 Bc1 Qd8 Q8a6 Qh8 Qad3 Qh5 Qd2 Rb3 Qaa2 Ra3 Ke2 Rg1 Nh1 e3 Bb2 e4 Ba1 Kd8 d7 Kc7 d8N Kb6 d6 Nc6 d7 Nb8 Nd5+ Kb5 Ne6 Qg3 d8N Nd7 Nc6 Be5 Bb2 Bd6 Bc3 Qh3 Ba5 Qf3+ Ke1 e2 Ncb4 Qd3 Bc7 Ne5 Nef4 Be6 Ne3 Nd7 Nfd5 Qc4 Qdc2 Qb3 Kd2 e1B+ Ke2 Bc3 Qcd2 Bb2 Nec2 Qg3 Na1 e3 Rc1 Rd1 Rc3 Nh3 Kd3 e2+ Ke4 e1B Rcf3 Bf2 Rf8 Be1 R3f7 Qc3 Qde5 Nf2+ Kf4 Qh8 Kg5 Qd3 Qe4 Qh7 Qee5 Qh5+ Kf4 Ne4 Nb3 Bf2 Na1 Bfd4 Nc6 Nf2 Ncb4 Qhh7 Kg5 Qh8 Qf5 B4e5 Qff6 Bg3 Qd4 Qh5+
K1Q2qq1/2b5/1p1nN3/N1N1r1Nk/b1rR1pRb/R6b/P3Bp2/n1B1R2Q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 f5 Kf3 Kf7 d4 g5 e4 c5 h4 b6 d6 b3 h6 Kg6 h7 b2 d7 c4 h5+ Kh6 d5 c3 e5 c2 e6 Bb4 e7 Nf6 e8R Ng8 d6 Ba5 Nd2 b1B Be2 Nf6 Rh3 Ne4 Nc4 Be1 Na5 Nc6 Rg8 Qf8 d8N Bh4 d7 Nb4 Ndb7 Nd6 d8N Ra7 Nc5 Re7 Qd5 Re5 Nde6 Bd7 Rg3 Ba4 Rg7 Rg8 Nh3 Rh8 Qd1 Rg8 Qh1 g4+ Kf2 Rh8 Nhg5 f3 Rd7 Rg8 Ra7 Rg7 h8R+ Rh7 Rg8 Rc7 Rg7 Rc6 Rad7 f4 Ncb3 Rc4 Nbc5 Ne8 Rd4 Nd6 Ke1 f2+ Kd2 Rd5 Rh3 Re5 Ra3 g3 Rg8 g2 Rg7 Nd5 Kd3 g1Q Nd7 Rc7 Ndc5 Ne3 Kc3 Qg2 Kb4 Qga8 Nh7 Qg8 Rg4 Qaf8 Nhg5 Ng2 Bd2 c1B Be3 Bb2 Bc1 Bf5 Rb1 Nf7 Ra1 Ne1 Kc4 Bb3+ Kb5 Ba4+ Ka6 Nd6 Rb1 Rc6 Ka7 Nc2 Ra1 Ne8 Rb1 Na1 Ka8 Rc7 Be3 Bc3 Re1 Bb4 Bc1 Bc3 Ncb3 Rc4 Nbc5 Nd6+ Nd8 Kg7 h6+ Kg6 h7 Kh5 h8Q+ Qh6 Qf6 Qhf8 Qe6 Bb4 Qc8 Bfd7 Rg2+ Bg4 Nde6 Bc3 Nf3 Bh3 Nfg5+ Kh6 Nc7 Bb4 Ncb3 Nf7 Nce6 Bd6 Rg4 Bc7 Nbc5 Nd6 Rag3 Kg6 Ra3 Kh5
5NQb/B3r1Np/q2r2bR/1p1R4/2QRpn1R/K2n1Nn1/2qPB3/1kN2n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 g4 Kd6 f4 Kc5 d6 Kd4 d7 c5 a5 e5 f6 b5 f7 c4 f5 e4 a6 b3 g5 h3 f6 c3 a7 c2 g6 b2 g7 h2 Be2 Ne7 Nc3 b1Q Na2 Nbc6 Ba3 c1N Qc2 Nf5 Kd1 Qe7 d8R+ Qd6 g8R Bh6 Rg6 Bg7 Rh6 Ne5 f8Q Rb8 a8N Rb7 f7 Re7 Nc7 Ng6 Ne8 Nf4 Qc7 Qd3 Bc5+ Kc4 Ba7+ Kb3 Qc6 Kb2 Nf3 Bf6 Qc5 Qa6 Rd5 Rg8 Qc6 Rg6 Qg8 Bh8 f8N Rd6 Ng7 Qb1 Qc5 Ncd3+ Nc1 Bd7 Qc7 Be8 Ra4 Bg6 Rad4 Qba2 Qc4 Kb1 Rg1 h1N Rg4 Nhg3 Rgh4 Ka1 Nh5 Nf1 Ng7 Q2a5 Kc2 N5g3 Kb3 Kb1 Qc7 Qc6 Qc8 Qab6 Ka3 Qc2 Qc4 Qa6+
1rR1R3/5QP1/4nn2/B1ppq1b1/b1R3Q1/B3pB2/R1B4r/N1NKrkqr w - - 0 1 illegal: No proof kernel
NnBQ4/1n1pPq2/p4Q2/1r2KB2/2rRR2r/1Qb3r1/pqb1Q2N/BkB5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 bxa4 d4 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 g4 b4 g3 c4 d3 h6 d2 b5 a3 h7 g2 c5 a6 b6 a2 h5 f6 c6 Ba3 b7 Ra7 c7 Nh6 Qb3+ Ke7 e6 Kd6 e7 Kc5 e8Q d1R Rh4 f5+ Ke5 f4 e4 f3 Bd3 f2 Nd2 f1Q Nc4 Nf5 h6 Bb4 Nf3 g1R Nh2 Nd6 Nb6 Rg3 Na8 Qf7 Bc2 Rd4 Bb1 Rhg8 h8B Rc4 h7 R8g4 Bg7 Bd2 h8Q Rf4 Qe7 Qde8 Qh5 Qh8 Qe2 Bb4 Qd8 Be1 Qbf3 Kb4 Qff2 Rfg4 Qff6 Kb3 Bd3 Kc3 Rb1 Rf4 Rb5 Rfg4 Rd5 Kb3 Rd4 Bc3 Bgh6 Qhg7 Bb2 Qh8 Bhc1 Rf4 Ba1 Rfg4 Rh6 Rh4 Rg6 Qhg7 Rg4 Qh8 Kf4 Qhg7 e5 Qh8 Bf5 Qhg7 Qe3 Qh8 Re4 Kc2 e6 Kb1 e7 Qhg7 Qg5 Qd4 Qe2 Qb6 Qf6 Qb2 Bd2 Nc6 b8Q Rb7 Bc1 Rb5 Qb6 Bb7 c8B Nb8 Rd4+ Be4 Qb7 Ra5 Qb3 Bc2 Re4 Rb5 Rd4 Rbb4 Ke5 Nb7 Re4 Rb5+
Rb6/Qp1kp2b/r7/5b1n/rBBKrq2/1PQ3BN/1b2Qp2/1rBR1N1Q w - - 0 1 illegal: No possible last move, all moves rejected
4Q3/3nN1n1/RqPk2rQ/RKp3p1/5nQ1/1b1pNB1p/1B1brQ1r/BB6 w - - 0 1 illegal: No proof kernel
2NNB3/1QbRnb1k/rqp1r2N/nR2b3/1p2pK2/r1PQ3R/2B1N1p1/R7 w - - 0 1 illegal: No possible last move, all moves rejected
5Rn1/1N1Np2P/2kBb2r/3N2QQ/RBnbqb2/1B2Np1n/1K1p1p2/4r1B1 w - - 0 1 illegal: No possible last move
1N4B1/krRb2q1/2n2n1r/p1p1K2Q/1R3pQ1/4p3/PB2R1N1/2NbqqRN w - - 0 1 legal: proof: e4 g5 h4 b5 c4 bxc4 f4 e6 e5 Ke7 h5 Bb7 g4 Ba6 fxg5 d6 g6 dxe5 g5 e4 h6 Bg7 hxg7 Bc8 Bd3 Kd7 Bf1 Ke8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb7 b4 f5 d4 a5 d5 h5 d6 c5 b5 c3 b6 h4 d7 e3 Ne2 c2 Rg1 h3 Ng3 h2 Nc3 h1B Qh5 e2 Ke5 e1Q+ Nce2 Qd1 Bb2 c1Q Rb1 Qcd2 Nc1 Ra6 Bc4 Be4 Nh1 Qe7 d8N+ Ka8 b7+ Ka7 Bd5 Nf6 g8R Qd7 g7 Rd6 g6 Bd3 Re8 Rb6 g8R Bc2 g7 Rh6 Rh8 Rb5 g8Q Qf1 Qgg4 Bd1 Rh7 Qg7 Re7 Bd7 Bb3 Na6 b8N Rb7 Bc4 Bb5 Rc7 Bd7 Rh8 Qdf2 Re8 Nb4 Bd4 Nbd5 Rb4 Ne7 Bb2 Q2e2+ Kd6 e5 Ne6 e4 Ke5 Qef2 Nf4 Q2e1 Ng2 f4 Bg8 e3 Rd8 Be8 Rd2 Bd7 Re2 Nc6+
5Rqn/1Bq1N1b1/nNbpq3/R6N/1r1R1Q1N/1P4BQ/3ppr1p/R3K2k w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 Kf7 g4 Kf6 c4 a5 c5 e5 c6 h5 b6 e4 b7 d6 b3 e3 c7 a4 Ra2 h3 Na3 h2 Nf3 d3 Nc4 a3 Nh4 e2 Bg2 Ne7 Nb6 Na6 b8R Bd7 c8N Ng6 Ne7 Bg7 Bb7 Bc6 Qc2 Rf8 g5+ Kf7 f6 Ke6 f7 Qc7 f5+ Ke5 f6 Ke4 Qc3 Nh8 g6 Ra7 Rg1 h1Q Bf4 Qh3 Bg3 Qe6 Qc1 Ra8 Qh6 Ra7 Ra1 a2 Ra8 Rb8 f8R Qg8 Rd1 a1Q f7 Qe5 Ra1 Qe6 Qh7 Ke3 Rf1 Ke4 Rf5 Ke3 Rd5 Ke4 Rd4+ Ke3 Nhf5+ Kf3 Ra5 Kg2 Nh4+ Kh1 Ra1 Nb4 Qh6 Ra4 Ra5 Na6 Qf4 Rb4 Qg4 Be5 g7 Rd8 Re8 Bf6 f8Q Rd7 Rb8 Rd8 Qf7 Rf8 Qf4 Be5 Q7f5 Rf7 Rf8 Rf6 Nhg6 h4 Qh5 h3 Nh4 h2 Qhg4 Qh7 g8N Rf5 Qh5 Bg7 Nf6 Qhg8 Qhh6 Qec8 Qh7 Qce6 Nh5 Rf6 Qhf5 Rf7 Qh3 Rf5 Qd2 Rf2 Qf4 d2+
nB5K/1b2q3/1Qp1b2P/1rn1QQp1/1p1q1b1k/1Q6/BNN1Rp1B/r1BR4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 a4 b5 d4 g6 h4+ Kg4 e4+ f3 d6 c6 d7 f4 h6 g5 h5 b3 h7 b2 d5 b4 d6 Qb6 d8Q Bb7 h6 Ra7 a5 Qa6 d7 Qb6 a6 Kg3 Rh2 f2 Na3 b1B Ne2+ Kg4 Nd4+ f3 Ndc2 Bc5 Bc4 f1Q Re2 f2 Ba2 Qg1 Nc4 Kh5 Nb2 Qb5 Qb6 Qd3 d8B Kg4 Bc7 Ne7 Kf6 Qe3 Kg7 Nd7 e5 Rf8 h8B Kh4 e6 Nc8 e7 Qe1 e8Q Rf5 Qe5 Qd4 Bb8 Bd6 Kh7 Ra8 a7 Nc5 Bf6 Bc7 Kh8 Bd6 Qd3 Bc7 Qb3 Bd6 Qe7 Bf4 Qe4 Rd5 Qf5 Re5 Na3 Bd3 Nc2 Bc4 Bd8 Be6 Bdc7 Nd3 Bd2 Nc5 Rd1 Nd7 Bc1 Rb5+ Qe5 Nc5 Qg7 Be3 Bh2 Bd2 Qe5 Bf4 Qc7 Nb6 Qh7 Bec8 Qf5 Be6 Red2 Qde3 Qee4 Kh5 Bb1 Bg8 Qee6 Qd3 Qed5 Qee4 Re2 Qe7 Qde5 Qd4 Qg3 Ra5 Qb3 Ra1 Ba2 Be6 Be3 Kh4 Bc1 Bbc8 Bc7 Rb8 a8Q Rb7 Qa7 Na8 Bb8 Rb5 Qb6 Bb7
1nRR2nq/1r2B1K1/p3p1N1/2rQ1p2/2R1n1BQ/p4BP1/B1bN2R1/k3bq2 w - - 0 1 illegal: No proof kernel
1nb1B3/1pr3R1/3NrB1Q/1nRp4/k2qqqQ1/6pb/1PKp4/1NRQ2RQ w - - 0 1 illegal: No proof kernel
1B6/1pb2p1R/nr2p1N1/2QB2q1/b1p3Rr/2RQ2q1/NKRP4/2BBknr1 w - - 0 1 illegal: No proof kernel
BB3R2/4Nn2/2p5/QP1q2nB/Q5N1/rBQK1k1n/bp1pn1p1/1RQ1b2r w - - 0 1 illegal: No proof kernel
QN5q/3qp3/p2p1rnr/N1RN1n2/qKN1p1Q1/2BP3Q/B1k1bQ2/4R1n1 w - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 cxb5 Bg7 a5 Bf6 Na3 Bd4 Nb1 Bb6 axb6 Kf8 Ra3 Kf7 Ra1 Ke8 f4 Kf7 g4 Kf6 g5+ Kf5 g6 c5 b7 h5 b6 d6 g7 a6 b5 c4 Nc3 h3 Nd5 h2 Bb2 c3 Rc1 c2 Bc4 h4 d3 h3 Kd2 Qc7 Kc3 Bd7 Qh5+ Ke6 f5+ Ke5 f6+ Bf5 f7 Nh6 g8Q Qd7 f8Q Nc6 Qf3 Bg4 b8N Nf5 b7 Rh6 b6 Bh5 Qe3 Be2 Ba2 Rf6 Re1 c1Q+ Kb3+ Qc3+ Ka4 Rh6 Qg4 Rf6 Qef3 Kd4 Qh6 Ne5+ Nc6+ Kc5 b8Q Ng6 Qb7 Rh8 Qa8 Qc1 Qhf8 Rh6 b7 Qc2+ Ka3 Kb5 Na5 Qcc6 b8N Kc5 Nc3 Kd4 Qf1 Ke3 Nd5+ Kd2 Nf3+ Kc2 Rg1 h1N Kb4 h2 Qfh3 Nf2 Nd2 h1Q Bc3 Qh2 Ndc4 Qh1 Qgh5 Qh2 Rg5 Qe5 Q3g4 Nh3 Qf7 Ng1 Qhh3 Re6 Qf8 Qh8 Qf6 Qg7 Qd4 Rf6 Qf2 Qh8 Ndb6 Ng3 Rc5 Nf5 Nd5 Qa4#
1n1K1Bb1/BN1qrrN1/pRbQ1r1p/2B5/1N3p1b/Qbkp1P2/4B2N/R7 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra4 Na6 Ra2 Nb4 Ra3 cxd4 Ra1 d3 Bg5 d4 Bc1 Nd5 exd5 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 Kd7 c4 Kd6 b4 Ke5 g4 f5 b6 e6 c5 a6 c6 h3 b5 h2 c7 f4 b7 h6 b8B Bd6 g5 Qe7 b6 Qe8 b7 Bc5 g6 Qc6 d6 Qe8 g7 Ba3 d7 Bc5 d8N Ke4 Ba3 e5 Nc3+ Kf5 Ba7 e4 b8B Ke5 Ne6 Bb6 Na2 Qc6 Bc5 Nf6 g8Q Qd7 Qf8 Rh7 Nb4 Rf7 Be2 Bb7 Ng7 Bc6 c8N+ Bc7 Nd6 e3+ Ke1 Bd8 Nb7+ Ke4 Nf3 d2+ Kf1 d3 Kg2 Bd5 Qb3 d1B Qa3 B1b3 Rhb1 h1B+ Kh2 Bdc4 Bbd6 Rc8 Be7 Rc6 Rb2 Re6 Kh3 Bd5 Nh2 Rc6+ Bg4 e2 Kh4 e1R Be2 Ke5 Rbb1 Bhe4 f3 Bh7 Rb2 Bg8 Rbb1 Re6 Rb2 Bc6 Rbb1 Nh7 Kh5 Nf6+ Kg6 Rd6 Na2 Kd5 Nb4+ Kc4 Rb2 Re6 Bed6 Be7 Qb8 Bd8 Bf8 Kc3 Qd6 Ree7 Qe6 Rg1+ Kf5 Rg6 Ke5 Qe8 Kd6 Nd7 Rbb1 Nb8 Qf6+ Re5 Qe6 Be7+ Kc7 Bh4+ Qe7 Rgf6 Qd7 Qe6 Kd8 Qh3 Qd6 Ree7 Nc2 Qe6 Qa2 Bbd5 Rb6 Bc4 Qa3+ Bb3 Nb4 Qd7+
b3NN2/2N4N/2qKn1np/bQp1B3/1n1BBnRP/1Q3p1b/2r2p2/1RB4k w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 d4 exd4 a4 g5 f4 gxf4 b6 Ne7 b7 Ra6 b5 Rc6 b6 Ng8 Nd2 Rc5 Nb1 Rb5 axb5 a4 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kf3 Kf5 h4 d3 g3 d2 e3 h6 Qb3 d1B+ Ne2 a3 Rg1 d4 Nc3 a2 Nd5 d3 Rb1 a1N Bg2 Na6 b8B d2 b7 Nb4 b6 Qe7 Ba7 Nac2 b8B c6 Be5 Qb7 Bh1 Ne7 Nc7 Ng6 Bg2 Be7 Bh1 Bd8 Bg2 Qa6 b7 f6 b8Q Qb7 Bad4 c5+ Kf2 Kg4 e4 f3 Nf4 f5 Nfe6 f4 Nf8 Rg8 Bh1 Kh3 g4 Kh2 g5 Bh3 Rg4 Be2 Bg2 Bb5 Bh1 Bc6 Bg2 Qa6 Qb5 Ba8 Bh1 Qb7 Bg2 Nh8 g6 Rg7 Bh1 Rg8 g7 Ng6 Na6 Ba5 Nc7 Nc6 Bg2 N2b4 Bh1 Nd8 Bg2 Rh8 g8N Ne6 Nf6 Rg8 N6h7 d1N+ Ke1 f2+ Kd2 Nb2 Kc3 N2d3 Kc4 Rg7 Bf3 Re7 Bg2 Nc6 Kd5 Ncb4+ Kd6 Kg1 Bg7 Kh2 e5 Re8 Bd5 f3 Be4 Ndf4 Bh8 Kh1 Bf6 Ng5 e6 Rb8 e7 Nge6 e8N Qc8 Bh8 Na2 Qd5 Rb6+ Qbc6 Qb7 Bhf6 Rb2 Qb3 Nb4 Bfe5 Rc2 Qb5 Qc6+
rQ1N3B/n4Qpp/B3p1B1/rpbB1N2/1Q3nP1/3n2Q1/1n1K1Rq1/kr1R4 w - - 0 1 illegal: Other
N1k5/2p3n1/Kp2q1Q1/N4B1r/BRP1RBQQ/1p1n2r1/1pb1r1B1/2r2Q1q w - - 0 1 illegal: Other
5Q2/n2R1RN1/rk1K4/3nB2p/2bR4/prp2B2/2PNpb2/RQ1nrQQn w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 f5 Bc4 Qd5 Be2 fxg4 Bf1 g3 Ra4 g4 Ra1 Qg5 hxg5 Be6 Ke2 Bd7 Ke1 Bc8 Ke2 Kd8 Ke3 e5 f4 a5 d4 c5 b4 Kc7 g6 h5 f5 c4 d5 g2 b6+ Kb7 f6 a4 b5 a3 g7 c3 d6 g3 f7 Be6 d7 Ne7 d8R Nc8 g8Q Bc5+ Rd4 Ra7 f8Q Nd7 Be2 Nf6 Bf3 Ra6 Nd2 Bc4 Nh3 g1N Nf4 g2 Ne6 Na7 Ng7 Nh3 Qf1 Nf2 Rh4 g1N Rf4 Ngh3 Rf5 Ne8 Rf7+ Nc7 Rd7 Nh1 Rf7 Nc8 Rd7 N3f2 Rf7 Ka8 b7+ Ka7 b8R Rhh6 Ra8+ Kb6 Ra7 Rg6 Ne6 Rf6 Qgg1 Rh6 Ng7 Rh8 Ra8 Na7 Rd8 Rg8 Rdd7 Rh8 Qe7 Rb8 Qd8 Bd5 Qf8 Nd1+ Ke2 e3 Kd3 Be6 Ke4 Bc4 Kf5 e4 Ke5 Nd5 Ke6 Ka5+ b6 e2 Ke5 e1R b7 Bb6 Ke6 e3 Kd6 Rc8 b8Q e2 Ne4 Rc5 Bf4 Rb5 Nd2 Rb3 Be5 Bd8+ Kc5 Bh4 Qb7 Bf2 Qbb8 Rb2 Qb3 Rb1 Qa2 Rb3 Qb1 Nc6 Kd6 Kb6 Rf6 Na7 Rf5 N1e3 Rff7 Nd1
6b1/1Bp1Bqkp/1R6/pr1n2P1/1p3rN1/bNRB1QK1/1nQQ3p/1Qn2B2 w - - 0 1 illegal: No proof kernel
1qkNBq2/1p3p2/1r1r1p2/1pK1pbR1/1BQ2Q2/1P1R4/nB2NBR1/1b4nR w - - 0 1 illegal: No proof kernel
r1k2NrN/pp3p1R/b2B2B1/1B1p4/2nP4/3pB1Nb/QR5b/1QKN1qb1 w - - 0 1 illegal: No proof kernel
2q4k/2NBQr2/3rN2q/2KP4/3N2r1/B3Q3/bQ2RQ1p/br1bBQn1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 b5 c4 f5 exf5 d5 cxd5 b4 a4 Nh6 a6 Ng8 a5 Nd7 Ra3 Nb6 axb6 Bh6 Rg3 Bf8 Rg6 Nf6 Rg8 Nxg8 Ke2 Kf7 Kd3 Kg7 Kc4 e5 g4 c5 d4 h5 f4 e4 a7 h3 d6 e3 d5 h2 f6+ Kh7 d7 e2 f7 e1R g5 b3 b7 h4 b8B h3 f5 b2 f6 Qa5 d8N Bg4 Nc3 b1B Ba3 Qc7 Nb5 Re6 Nf3 Qd6 Nc7 Bg7 f8Q Nh6 f7 Ba1 Nd4 Nf5 Qe7 Rf8 g6+ Kh8 Qd3 Rg8 f8Q Bd1 Qe3 Ng3 Qff2 Ne2 Rg1 h1Q Rg2 h2 Kb5 Rf6 N8e6 Ng1 Bc4 Ba2 g7+ Kh7 Be2 c4 Bg4 c3 Qb2 c2 Re2 Qd8 Kc5 Qc8 Qf2 Rd8 Qf1 Rf7 g8Q+ Kh6 Bh3 Rd6 Qg3 Kh7 Qe3 c1R+ Nc2 Qe4 Qh6+ Kg8 Ng7 Qa6 Nce8 Qh4 Bd7 Bb3 Ne6 Qh5 Kd4 Rc6 Bg3 Qg5 Be1 Rd6 N8c7 Rb1 Qh4 Qh6 Qhf2 Rb8 a8Q Kh8 Qa7 Ba2 Qb6 Qb7 Qb3 Qa8 Qbe3 Rg8 Kc5+ Rgg7 Ncd4 Qc8 Kb4 Rg2 Kc5 Rg4
r5kN/1BK1nnn1/2Pb1pB1/r4RN1/N1nB2Q1/N3pNp1/5Q2/4Qn2 w - - 0 1 legal: proof: d4 a5 b4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 Bb7 b6 Be4 b5 Bb7 Ra4 Bc8 e4 e5 f3 d5 Bg2 d3 Bf1 d4 Rb4 axb4 Be2 Bf5 Bf1 Qd5 exd5 e4 Bd2 e3 Bc1 Be4 fxe4 Ra5 Qe2 Ra6 Qd1 Ra8 c4 g5 h4 b3 d6 g4 h6 d2+ Ke2 f6 Kd3 Kf7 b7 g3 c5 b2 Kc4 d3 Kd5 Rh7 h5 Ra7 c6 Ra3 e5 Rh8 e6+ Ke8 e7 Kf7 h7 Ra8 e8B+ Kg7 d7 Ra6 d8Q Ra8 b6 Bb4 h6+ Kf8 Nf3 Ra2 Qe1 d1N Qc8 d2 Ba6 Bc5 Bg6+ Ke7 Na3 b1N Qg4 Kf8 Bb2 Bd6 Bd4 Be7 Rh5 Bd6 Rf5 Nd7 b8N Nb2 Bb7 d1N Na6 Ne5 Nc5 Nf2 Na4 Ne7+ Ke6 Nf7 Kd7 Rg8 h8N Nc4 h7 Ne4 Qf2 Nbd2 Qe1 Nh6 Nf7 Ng5 h8N Ne6 N7g5 Ng7 Kd8 Nf7+ Kd7 Bc5 Kc7 Ra1 Bc8 Bb4 b7 Nf1 b8Q Bc5 Qb2 Bd6+ Kd7 Rb1 Qg2 Rb5 Qgf2 Ra5 Bb7 Nh5 Qb1 Kg7 Qbe1 Rga8 Qb2 Kg8 Qbf2 Bc5 Kc7 Ng7 Nh7 Bb4 Nhg5 Bd6+
B1kq2b1/p2p4/K1P1Rrq1/8/q1p3NQ/RR1Q1Q1p/N2r1R2/3NbR2 w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 e5 b4 g5 d4 f5 exf5 Na6 h4 gxh4 c4 Qa5 b6 Qa4 b5 Qa3 b7 Nf6 Bb2 Qa5+ Bc3 Qd8 Bb2 Ne4 b6 Nd6 Bc3 Nb5 cxb5 c4 Bb2 Nc5 dxc5 Ke7 Bc3 Ke8 Bd4 exd4 Kd2 h5 b8Q d3 Kc3 d2 Kb4 h3 Ka5 h2 g4 h4 f4 h3 f6 Rh5 f7+ Ke7 f5 Rg5 f6+ Ke6 Nc3 Re5 g5 Re4 g6 Rf4 g7 Qe7 g8N Ba6 b7 Rf5 b6 Bh6 f8R Qd8 f7 Qc8 Na2 Rg5 Bg2 Rf5 Qg3 Rd5 b8R Qe8 b7 Bb5 Ne2 Bc6 Qh4 Qd8+ Ka6 Bf4 Rf1 h1Q Bf3 Qg1 Nf6 Bg3 Ng4 Be1 Nec3 Qg2 Qb1 d1Q Qd3 Qdd2 Nd1 Qb4 Rc8 Rd4 b8R Bd5 Rc7 Qg3 Rc6+ Qd6 Rb7 Rb8 Rb5 Rf4 Rb7 Rf6 Rf2 Ke7 Bh1 Qd2 Rb3 Qb4 Rb6 Be6 Ba8 Qg3 Rd6 Rb5 c6 Rd5 Qc3 Rd2 Qd3 Qe8 Rf1 Kd8 Rf2 Bd5 Re6 Qc7 Rab1 Kc8 Ra3 Qed8 Rbb3 Qcb8 Rfe8 Qg3 f8Q Qg2 Rf1 Qg1 Re2 Bf7 Ref2 Bg8 Re6 Qg3 Qf7 Qg2 Qfh5 Qe4 Qhd5 Qg6 Q5f3 Qa4+
qQQB2r1/2R2Q2/n1q4n/n3Q1qq/1B2bP1R/RN6/Qr2k1K1/3bb1B1 w - - 0 1 illegal: No possible last move
rQ2K1b1/1B1BP2k/3N2b1/4B2n/n1b1QbnB/2NN4/2RqQqb1/5B1b w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 b4 e5 c4 d5 cxd5 e4 h4 Bb7 f4 gxf4 g5 Ba6 h5 Bc8 Ra3 Ra6 Rf3 Rg6 hxg6 exf3 Kf2 h5 e4 f5 d4 c5 g7 Kf7 e5 Kg6 e6 c4 b6 h4 e7 c3 d6 h3 b5 c2 b7 a4 d7 a3 b6 h2 d5 a2 d6 a1N Nh3 Rh7 Nc3 Nb3 Qe2 Nf6 g8B Nc5 Be6 Nc6 b8B Na4 b7 Bh6 Bd2 c1Q Be1 Qf8 d8Q Qc2 d7 Qd2 Be5 Rh8 b8Q Kh7 Rg1 h1B Rg2 Qf7 Qe8 Nh5 d8N Rf8 Nb7 Rg8 Nd6 Bd7 Kg1 f2+ Kh2 f3 Nf4 Qf6 Nd3 f4 Bg4 Bf5 Kh3 Rh8 Kh4 Rf8 Bd4 Ne5 Qc6 Rc8 Bh3 Ng4 Be5 Qf8 Qce4 Rd8 Qa7 Ra8 Qb8 Qf6 Rh2 Qf8 Bfg2 f1B g6+ Kg8 g7 f2 Bf3 Kh7 Bfg2 f3 g8B+ Kg6 Bc4 Kh7 Ba6 Bf4 Bb7 Qf7 Q2e3 Be2 Bf1 Bd1 Qe2 Bb3 Bfg2 f1B Bf2 Ne3 Be1 f2 Bg4 Bg6 Bd7 Bf5 Bh3 Bg3+ Kg5 Bfg2 Qf1 Qf8 Qe2 f1B Bf2 Bg8 Be1 Qd8 Bf2 Qb6 Be1 Ng7 Kf6 Bf4 Bh4 Qbb2 Qe1 Qf2 Qe2 Qd2 Bb5 Bg6 Bhd7 Bf5 B5a6 Bb3 Bc4 Nh5+ Kf7 Ng4 Ke8 Ba2 Bca6 Bg8 Qd1 Qb2 Nb4 Qa7 Qec2 Bf3 Qe4 B1e2 Rf2 Bfg2 Bc4 Bd3 Rd2 Qc1 Rc2 Qd2 Bca6 Qaf2 Qde1 Bdc4 Qd1 Bcd5 Bf1 Bb3 Nd3 Bbc4 Qde2 Bg6+
2r3N1/5RQ1/1nqqN1Rr/qn2R1RP/k1n5/1N2BqK1/2bR1Q1n/3Qq3 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kd3 Kd7 Ke3 f1Q h4 c5 d4 a5 b4 g5 h5 g3 d6 a4 f5 a3 b6 Kc6 b5+ Kd7 b7 a2 b6 Kc6 d5+ Kb5 d7 f2 Kf3 g2 e4 c4 d6 g4+ Kg3 c3 e5 c2 f6 Ka5 f7 Qf8 d8N Bd7 e6 Bc6 e7 Nf6 e8R Qd3+ Nf3 g1N d7 Qfd6+ Re5+ Nd5 f8Q Na6 b8Q Ka4 b7 Nac7 Qg7 Nb6 Be3 Nb5 Nfd2 Nf3 Rf1 Nh2 Ne6 Be4 d8R Rh6 Nb3 c1Q N1d2 Qcc6 Rc1 a1Q Rc5 Qac3 Qa7+ Qa5 b8R Bh7 Rb7 Rc8 Rg1 f1Q Rf7 Qe1+ Kf4 g3 Ne4 g2 Nf6 Qdc3 Ng8 Bc2 Rdd7 Qcd3 Rd5 Qde2 Rd2 Qed3 Rf6 Qde2 Rdf7 Qed3 Rg6 Qdc3 Rf1 g1N Rff2 Qcd3 Rfg2 Ngf3 R2g5 Q3d5 Rf2 Nd2 Kg3 Na8 Qd4+ Nc4 Qf4 Nb6 Qh4 Qf1 Rd2 Qdh1 Qf4 Qe1+ Qf2 Qhf3+
1R1n2Q1/4Pr1N/1B2q1Q1/3r1n1K/Q1b1Q2R/rp1n2b1/3b2QR/kBB3q1 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 c4 d5 cxd5 f6 b4 axb4 Nc3 Bd6 Ne4 Bf8 Nf2 f5 gxf5 Ra5 Ng4 hxg4 Ba3 Ra4 Bc1 Ra8 Kf2 Ke7 Kg3 b5 a4 c5 h4 g5 d4 b3 e4 b2 a5 b1Q e6 Kf6 h5 b4 e7 c4 e8Q c3 d6 c2 d5 Rh7 a6 Rh6 d7 Qe7 d8R Ke5 f6 Bd7 a7 Be6 f7 Rh7 d6 Bh6 f8Q Bc4 d7 Qe6 Qff7 Ne7 Ra2 Nbc6 Bd3 Kd4 e5 Kc3 Qg6 Rf7 Rb8 Nd8 Rh4 b3 Qf1 Qa1 Qg2 Qb1 Nf3 Nf5+ Kh2 g3+ Kh3 Qa1 Kg4 Qb1 Qe7 Qa1 Qa3 Qb1 Qa4 Qa1 Qe2 g2 Qe4 g1B Rb2 Bh2 Ra2 Qa6 e6 Bg3 e7 Qe6 Rb2 Qa3 Ra2 Qc5 Rb2 Qg1 Ra2 Bg7 h6 Bh8 Kh5 g4 h7 Bg7 Qa3 Bh6 Qa4 Bhf4 Ng5 Bd2 Ba3 c1N Bb1 Nd3 h8Q+ Be5 Nh7 g3 Qf8 g2 Bc1 Bg3 Qfg8 Qh1 Rh2 g1R Rh4 Re1 Qg2 Re5 Rb2 Qg1 Qe4 Nc6 d8B Rd5 Bb6 Nd8 Rb7 Rc8 a8Q Rc7 Rb8 Ra7 Qb5 Ra3 Qba4 Bh6 Rbh2 Bg5 Bd2+ Kb2 Bc1+ Ka1 Qg2 Bd2 Q8c6 Rd4 Qce4 Rd5
n4nb1/r5Bq/3QrNQB/1N1N4/1pB3qK/r1b1P1BR/bk5b/3B2Q1 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 h5 a4 d5 c4 f5 gxf5 e5 cxd5 Bc5 fxe5 Be7 Ra3 Bc5 Rg3 Bf8 Rg4 hxg4 Kf2 Ke7 Kg3 g5 d4 b5 h4 c5 a5 b3 f6+ Kd7 d6 Kc6 h5 Kd5 h6 Kc4 h7 b4 f7 b2 d7 Nf6 a6 Nd5 a7 Bg7 f8B Qc7 d8B Be6 Na3+ Kc3 Nh3 b1B Nf4 c4 Rh3 Bg8 e6 Nb6 e7 N8d7 e8N Ba2 d5 Qb7 Bd2+ Kb2 d6 c3 Bc7 c2 Nd5 c1R Nb5 Bc3 Nef6 Ra1 Bg7 Nf8 d7 Re8 d8Q Re6 Bcf4 Na8 Qd6 Qf7 e3 Qg6 Bc4 Qd3 Kg2 g3 Qg1 g4 Be1 Qg6 Bfh6 Qe4+ Kf1 g2+ Kf2 Qb1 Kg3 Qc2 Kh4 g3 Qf2 g1Q Qh2 g2 Bg3 Qgd1 Qh1 g1B Qg2 Nc7 a8B Bh2 Qg1 Qcb1 Bc6 Na8 Be8 Qbd3 Bh5 Nb6 Qh1 Bf7 Nf4 Bb1 Nd4 Ng6+ Kg5 Rha8 N4d5 R1a3 Qg1 Bg8 Nb5 Nf8 Kh4 R8a7 Be2 Na8 Bf3 Q1c2 Bd1 Qde2 h8Q R7a6 Bhf4 Ra7 Qh5 Ba2 Bfh6 Qh7 Qg6 Qg4+
3R2rq/2r4N/5RN1/Rbqb3P/1Kpbr2B/Q2NRQnn/2k5/3rR2Q w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 Kf7 Kd2 c5 Kc3 e5 b4 a5 h4 f3 b6 e4 b7 c4 b5 g3 d6 e3 d5 e2 h5 e1Q+ Nd2 f2 b6 f1B g6+ Kf6 d7 Ke5 d6 g2 f6 a4 g7 a3 f7 a2 Nf3+ Kd5 Nh4 g1R Kb4 Kd4 Ng6 Kd3 Qf3+ Qe3 Nb3 Bg2 Nc5+ Kc2 Nd3 Rd1 Re1 Ne7 g8Q Bg7 f8N Bd4 Qgd5 Rg8 Nh7 Nf5 Bb2 Qf6 d8R Nd7 b8Q Ba6 b7 Nf8 d7 Ne6 Qa7 Qh8 b8R Bb5 Qa3 Ng3 Re8 Ng5 d8R Ra7 Rb6 Nh3 Rf6 Rc7 Bc1 Qf2 Bg5 Qg1 Bh4 Bh1 Rb1 a1R R8e3 Ra2 Ra1 Qf2 Qf4 Bf3 Qb7 Bd5 Qf3 Qg1 Qaa8 Ra6 Ra5 Re6 Qc6 Re4 Qd6 Nf1 Qh2+ Qf2 Qhh1 Ng3 Raa6 Ba7 R3e2+ Kb1 Ra3 Qb6 Re3 Kc2 Ra1 Qc6 Ra3 Bd4 Qa4+ Kd2 Qb3 Qb6 Ra5 Qa7 Qa3 Kc2 Nge5 Qb6 Ng6 Qc5+
4kNN1/Qb4Pr/1Bnr2N1/N5R1/n2bB2n/3qpn2/5q1Q/NQKqB3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 g5 g4 h6 f4 gxf4 g5 h5 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 d4 c5 Kd2 a5 h4 e5 h5 a4 f6 c4 g6 g3 b6 a3 b5 g2 g7 e4 b7 f3 b6 a2 f7+ Kd7 d6 a1Q h6 f2 h7 Qa4 d5 Qb3 Nc3 Be7 f8N+ Ke8 d7+ Kf7 d6 Ra3 Nf3 g1N Bd3 f1Q Nd5 Nc6 b8Q Ne2 b7 Nf6 Rg1 Ng4 Nf6 Nf4 Ng8 Nh2 Nd4 Bf6 Rg5 Ng2 Nc2 Bd4 Na1 Nh4 Qa7 Ra6 b8Q Bb7 Qc7 Qdf6 d8B+ Ke8 Qcb8 Qa3 Bb6+ Qd8 Kc2 e3 Be4 c3 Bd2 N2f3 Qb1 Qf2 Kd1 Qb3+ Kc1 c2 Bda5 Qd3 Be1 Qc8 Qc7 Qg4 d7+ Kf7 d8N+ Ke8 Bc3 Qd7 Qh2 Qd1+ Kb2 c1N+ Qc2 Bf6 Bbd4 Nce5 Be1 Ng1 Nc6 Nce2 Qb1 Ngf3 Ne6 Qd6 Bc5 Q6d3 Na5 Rd6 Bb6 Nc3+ Nc2 Q1e2 Kc1 Nc6 Na1 Bd4 Nh6 Rf8 h8N Na4 Ng6 Rh8 Ng8 Rh7 Nef8 Qed1#
1RrB2Kn/QQpk3b/4R3/b1rnB2P/1N1r3B/3b1R2/2Q1b1q1/R3Rq2 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 g6 axb5 Bc5 c4 Bf8 Bh3 Ba6 Nc3 Bc8 Ne4 Qf6 Ng3 Qd8 Nf5 gxf5 g5 d5 Bg4 hxg4 cxd5 Rh3 Ra2 Rh7 Ra1 Rh8 Kf2 a5 Kg3 a4 Kf4 f6 b4 a3 d4 a2 e4 g3 h4 g2 b6 Rh7 b5 Rg7 g6 Ra7 b7 Qe7 b6 Qf7 h5 Be6 d6 Ra5 d7+ Kd8 d5 Be7 Rh3 Rh7 g7 Bd6 Rf3 Qg6 Nh3 g1R Bb2 Bf7 Nf2 Rh8 Nd3 Bb4 e6 Qg2 e5 Rc5 Qc2 Ba5 Nb4 Nh6 g8Q+ Ke7 Qg6 Na6 b8Q Rd1 b7 Rc8 Qa7 Rd4+ Qe4 Be8 b8R Nf7 Bc3 Nh8 d8B+ Kf8 Qh7 Bg6 d6 Ke8 e7 Kd7 e8R+ Bf7 Rc1 a1Q Re6 Qb1 Be7 Bg6 Bb2 Qd3 Ra1 Qdf1 Bc3 Rd1 Qeb7 Rd4+ Ke3 Rh4 Bb2 f4+ Kd4 f5 Bc3 Rg4 Bh4+ Bf7 Nc6 Nb4 Bb2 Nd5 Nb4 Rgg8 Qg6 Rgd8 Bc3 Qgh1 Qg2 Bg6 Qc2 Qh2 Rf6 Qhg2 e6+ Ke8 e7 Kd7 Rg3 f3 Ke5 f4 e8R f2 Rfe6 f3 Bd4 Nf4+ Kf6 Nd5+ Kg7 Qc4 Kg8 f1B Na2 f2 Nb4 Bfd3 Rf3 f1B Ree1 Bfe2 Be5 Qf4 Rf8 Ke6 d7 Qf5 Re3 Qff1 Re4 Re8 d8B Kd7 Re3 Re7 Re8 Rf7 Rf3 Rf4 Re6 Rg4 Ra8 Rd4 Rb8 Bh7+
N5b1/2p1Q1q1/Qb1RPB1q/1r1q3k/1r4nn/N2QbR1R/N6q/5KRR w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 d5 axb5 h6 cxd5 h5 Bh3 exf4 gxf5 Ke7 Bg4 hxg4 Qc2 Kd7 Qd1 Ke8 d4 Kf7 b4 g5 e4 a5 h4 g3 d6 g4 e5 g2 e6+ Kg7 f6+ Kg6 f7 f3 b6 g3 h5+ Kh7 b5 a4 h6 Kg6 d5 a3 h7 a2 b7 Nh6 b6 Qg5 d7 Ra5 d8Q Nd7 b8Q Nf5 b7 Ne5 d6 Bh6 f8R Nh4 d7 Ng4 Qa8 Kh5 b8N Rb5 Na3 Ba6 Bb2 Qd5 Qe7 Be3 Ne2 g1B d8R g2 Nc3 f2+ Ke2 Bb7 Qd3 Bb6 Rf1 a1Q Rf3 Qc1 Re1 Qh6 Na2 Rf8 h8R Rf4 Rd1 Rfb4 Bf6 Bc6 Ra1 Be8 Rd6 Bf7 Qa6 Bg8 Nd7 Be3 Re1 Bb6 Rhh3 Be3 Nb6 f1Q+ Kd1 Bgf2 Na8 Qg1 Ke2 Qh2 Rb1 g1Q Rh7 Qgg3 Rg1 Qge5 Kf1 Qc3 Rh1 Bb6 Rg7 Bfe3 Rg6 Ne5 Rgg1 Ng4 Bg5 Qch8 Bf6 Q8g7
1qR1b3/PQ2q1rQ/b7/3B3B/2p1K1Nk/rBNBbn1n/6rr/2B1NQ2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 g5 f4 e5 fxe5 g4 Ra3 g3 b4 axb4 hxg3 bxa3 g4 Qd7 g5 Qd8 Kf2 Ke7 Ke3 c5 d4 f5 g4 b5 d6+ Kf7 e6+ Kg6 d5 h5 e7 b4 e8B+ Kg7 a5 a2 a6 a1R d7 b3 g6 Kf6 a7 Kg5 d6 h4 g7 b2 Bh5 f4+ Ke4 h3 Nc3 Ne7 g8B h2 Bb3 Kh4 g5 f3 g6 f2 g7 c4 g8B Ra3 Bd5 b1Q+ Qc2 Qe8 d8Q Nd7 Qb6 Bh6 Qb7 Ne5 d7 N7g6 d8Q+ Qe7 Qf8 Nf4 e3 Rb8 Bd3 f1R Qf5 Nh3 Nf3+ Kg3 Qd1 Rg1 Qh7 Rg2 Ne1 Kh4 Qf3 Bd7 Qf1 Rbg8 Rg1 R2g7 Rg6 Bb5 Rc6 Ba6 Rc8 h1B+ Kf5 Rg3 e4 Nf3 e5 R3g7 e6 Be3 Ke4 Rg2 Bd1 R8g7 Bb3 Qc7 e7 Qb8 Ba4 Qb4 e8N Q4d6 Nf6 Qe7+ Be6 Rhg8 Bd1 Rh2 Bb3 Rgg2 Ng4 Rg5 Rg8 Rg7 Rc8 Re2 Na2 Nfg1+ Kf5 Bc6 Nc3 Reg2 Bg8 Nf3 Bd5 Qd8 Ke4 Be8 Nc2 Qg5 Ne1 Qe7+
Q2K2b1/1q3NR1/bB1NbQ1R/3n2r1/P3NQ2/b4Q2/Qpk5/Rn1r2rr w - - 0 1 legal: proof: e4 d5 b4 a5 g4 axb4 c4 f5 exf5 h5 gxh5 b3 cxd5 c6 Bb5 cxb5 Kf1 b4 Ke2 Rh6 Ke1 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kd4 a4 Kd3 f4 e5 h4 g5 f6 b6 d6 g4 d7 g3 f5 b2 h6 g2 f7 e4 h5 e3 h7 b3 h6 e2 f6 e1R Nc3 b1B Nf3 g1R Nh4 b2 Qc2+ Kd4 Ne4 Ne7 Nf5+ Kd5 d4 Rd1 Nfd6 Qc7 d8Q Bf5 Be3 Na6 Qd2 Rhg8 h8N Nb4 h7 Ba2 Rh6 b1B Qc8 Ra7 Qa8+ Qb7 Qh2 Bb3 Qa2 Be6 Rg6 Nc2 Rg7 Ng6 Bf2 Nf4 Be3 Be7 f8Q Ra6 Nhf7 Na3+ Kb4 b5 h8R Rg5 Rh6 Bd3 Bf2 Rb6 Ka5 b4 Qfb8 Nb1 Qc7 Re8 Qc3 Ba6 Qf3 Bbc4 Be3 b3 Bg1 b2 Be3 Kc6+ d5+ Kd7 Bd4 Rg8 Bf2 Rc6 Bb6 Rh1 Nb5 Rd8 d6 Nd5 Qf4 Rc5 Qf3 Kc6 d7 Rg8 d8Q Rgg1 Qf8 Rd1 Qfb8 Bb3 Qbf4 Rcc1 Nbd6 Rdg1 Nfg5 Rcd1 f7 Bbc4 f8Q Bb3 Ne8 Ba3 Q8f6 Bbc4 Nf7 Bb3 Rgh7 R8g5 N8d6 Nc7+ Nb5 Kd5 Rg7 Kc4 Bf2 Qc8 Kb6 Qb8+ Kc6 Nd5 Nbd6+ Kb4 Bb6 Bbc4 Nd8 Bg8 Kd7 Qb7+ Ke8 Bb3 N8f7 Bbc4 Kd8 Bb3 Nc8 Kc4 Qf2 Kd3 Q2f3+ Kc2 Ncd6 Ne3 Q4g4 Be6 Qgf4 Nd5
3n2rN/3Q1qkp/1QNnRN1r/4N3/2B1B3/QnP4K/1b3rnN/1r2b1B1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 b4 Qa5 g4 Kd8 f5 Nh6 Ra3 Ke8 Rf3 Bb7 Rf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ng8 Be3 Qc7 Bc1 Qd8 Kf2 Kf7 Kg2 a5 c3 d5 g6+ Ke8 g7 Kf7 g5 e5 b6 e4 b5 e3 b7 e2 b6 e1B Kh3 f3 Bd3 a4 Be3 f2 Nf3 f1R Be4 a3 Bg1 d3 Nbd2 d4 Nh2 a2 Nc4 Ne7 g8N Nbc6 b8Q a1N b7 d2 Qg4 Bh6 g6+ Kf8 f7 d1N Nf6 d3 Qa7 d2 b8N Qd5 Qb6 Ne3 Ne5 Kg7 f8N Nd8 Nbc6 Rg8 Qd1 Rb8 Qa4 d1R Qaa7 Bg5 Qd7 Kh6 g7 Rb1 Nfg6 Nb3 Nh8 Qf7 Nd4 Ng2 Ndc6 Re8 g8B Rf2 Qe6 Kg7 Qd7 Qg6 Bc4 Bc1 Nfg4 Bb2 f6+ Kf8 f7 Nf5 Nf6 Nd6 Qe6 Kg7 Qd7 Kh6 f8Q+ Qg7 Qfe7 Rg8 Qf8 Ra8 Qfe7 Ra6 Qf8 N8b7 Qa8 Qf7 Qaa7 Kg7 Qa8 Ra2 Qa3 Nd8 Nhg4 Nd2 Kh2 Rf3 Bb5 Ne3 Nd5 Bc1 Be2 Rf6 Bc4 Nc2 Kg2 Nb3 Rh6 Ne3+ Kh3 Raf2 Nh2 Bb2 Rg6+ Kf8 Rh6 Ng2 Rg6 R6f5 Rf6 Kg7 Re6 R5f4 Nf6 Rh4+ Kg3 Rh6 Kg4 Nh4 Kh3 Ng2+
nRR3N1/4q1Br/rp3K1R/1NPrr1Qr/5N1q/1QN1b3/nNQ5/4n2k w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Kf7 b4 axb4 f6 Ke6 g4 Ke5 f7 Ke6 Kd2 Kd5 Ke1+ Kc6 f4 h5 f5 b6 f6 Ba6 Be2 Bd3 Bf3+ Be4 Be2 Bf5 gxf5 Kb7 Bg4 hxg4 Na3 Kc7 Nb1 Kc6 Kd2 Kd5 Ke3+ Ke5 a4 d5 c4 g5 h4 e6 h5 b3 h6 b2 h7 g3 a5 g4 a6 g2 c6 g3 a7 Qe8 c7 Nc6 c8R Nb4 c5 Na2 Nc3 b1R Na4 Ne7 Ne2 g1R Qc2 g2 Nb2 Re1 Rh6 g1Q+ Kd3 d4 Nc3 Bg7 f8Q Qg5 f7 Nd5 f6 Qe7 Qg8 Nc7 f8Q Qh4 f7 Bf6 Kc4 Bg5 Qd8 Be3 f8N Kf4 Nd7 Kf3 Nf6 e5 Qe6 e4 Ng8 d3 Qdd5 d2 Qg5 Nb5 Kd5 d1R+ Ke5 Nc7 Kf5 Rh1 Qeb3 Rd5+ Kg6 Rh3 Bd2 Re1 Bc1 Rb8 a8N Rb7 Bd2 Ra7 Rd1 Ra6 Rb8 Ne8 Nc7 Kf2 N7b5 Nc7 Rc8 Na8 Rb8 Re2 Be1+ Kf3 Bg3 Kg2 Be5+ Qg3 Rc8 Rh5 Bg7 Qg4 Rd2 Kh1 Rb8 Re1 Rf2 Qh4 Rff8 Red1 Rfe8 Re5 Rec8 Rdd5 Nf6 Re8 h8N Rf8 Ng8 Rf7 Bf6 Rh7 Bg7 Bd4 Rc6 e3 Rcc8 Qd7 Kf6 e2 Ng6 e1N Nf4 Be3 Qb4 Qc7 Qbb3 Qe7+
3b1b2/5n2/1qnQnP1R/kp1Q1R2/q2BN1b1/2K1N1RQ/2N3nN/1b3N1r w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 Nd7 g4 Nb8 b4 axb4 f6 Ra7 Ba3 Ra4 Bc1 Ra8 f4 b5 f7+ Kd7 g5 h5 f5 Ra3 Be2 Ra6 Bg4 Rf6 gxf6 hxg4 d4 g5 Kd2 e5 h4 c5 a4 Kc7 d6+ Kb6 d7 b3 d5 e4 d6 b2 a5+ Ka6 h5 c4 h6 e3+ Kc3 g3 h7 g4 Nf3 e2 Rh6 e1B+ Nbd2 b1B Nh2 g2 Ra3 g1N Bb2 Be7 f8R g3 f7 Qc7 d8Q g2 d7+ Ka7 a6 B1h4 Ndf1 Qb6 Qd6 Nh3 Rb3 g1Q Ba1 Ka8 a7 Kb7 a8N Ka6 Nc7+ Ka5 Nd5 Qg4 Nde3 Ng5 Qd5 Bd6 Qc7 Be7 d8N Ne6 Qcd6 Nc6 Bb2 Qd1 Ra3+ Qa4 Nb7+ Ka6 Nc5+ Ka5 Ne4 Bd8 Kd2 Bhe7 Bd4 Bd7 Kc3 Bc8 Rh5 Nh6 f6 Bd7 Rf5 Bc8 Rg8 Bd7 f8N Nf7 Rg6 Bc8 Nd7 Bf8 Ne5 Bd7 Nc2 Bc8 Kd2 c3+ Kd3 Bd7 Neg4 Bc8 Rh6 Bd7 Nge3 Bc8 Ke2 Bd7 Na1 c2 Kd3 c1N+ Kc3 Nd3 Nac2 Ndf4 Rb3 Ng2 Ra3 Rg8 h8Q Rg5 Qg8 Rh5 Qgg3 Bc8 Qh3 Neg5 Re5 Bg4 Rf5 Ne6 Qhg3 Rg5 Kd3 Bh3 Neg4 Nh4 Kd2 Rg7 Raf3 Rg8 Nge3 Rg6 Kc3 Rg4 Qf2 Rg1 Qg2 Bg4 Rg3 Rh1 Qh3 Ng2
2N1k3/4q1RN/Q3r1p1/1R2qp1b/2bQ3b/NNKPr3/nn1BN3/n2QR3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 a6 b4 Kd7 b6 Rh6 b7 Rh8 b5 Nh6 b6 Ke7 Bh3 Ng8 Bf5 Ke8 Bd3 Qf6 Bc4 Qd8 Bb5+ axb5 e4 c5 h4 f5 d3 b4 Kd2 c4 d6 g6 e5 b3 e6 b2 h6 f3 e7 f2 h7 f1N+ Kc3 Nc6 b8R Nd4 h5 Ra6 h6 Ne3 b7 Rc6 Ne2 Be6 Re1 Nf6 Bd2 Nb3 Ra7 Na1 Na3 Rg8 h8Q b1B h7 Bc2 Qg7 Bb3 h8Q Nfd5+ Kb2 Nc3 Qd4 Na2 Qhf6 Bd5 Qe6 Bh6 Qc8 Bg5 d7+ Kf7 e8N Bf3 Nf6 Re6 Nh7 Qe7 Qc6 Bh5 Qa6 Bh4 d8N+ Ke8 Nc6+ Qd8 Ne7 c3+ Kb1 c2+ Kb2 Bc4 Nc8 Qf6 Qb6 Qe7 Qa6 Nb4 Kc3 c1Q+ Qc2 Qb1 Qd1 Qa2 Rba8 Rf8 b8N Rff6 Rb7 Re5 Rb6 Rfe6 Rb5 Re4 Nc6 R4e5 Nb1 Qa5 Na3 Re4 Ra7 Na2+ Kb2 Qac7 Na5 Qe5 Rd7 Nd5 Rdb7 Re3 Nb3 Nb6 Rd7 Qf8 Rg7 Qe7 Rc5 Nc1 Kc3 Na4+ Kb4 Nb2 Kc3 Qe4 Rd5 Qe5 Rb5 Na2+
Q1RQq1bn/1R1Q1bQ1/2R2P2/q6b/p3n3/2rNQ3/1BkpN1r1/K1N3r1 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 g6 e5 f6 exf6 Kf7 Ra4 Ke6 f7 Ke5 Ra1 Kd6 g4 Kd5 f4 Qb6 h4 Qb7 g5 Na6 f5 Nb8 f6 Bg7 Bh3 Qc7 Bg4 Kd6 Bf5 gxf5 g6 Bh6 Qd2 Qb6 Qd1 Bg5 hxg5 Qd8 Kd2 Ke5 f8Q Ke4 c4 a5 Kc2 e5 b4 h5 Kb2 d5 g7 d3 c5 f4 c6 a4 c7 f3 g6 f2 b6 f1B b5 d2 b7 Kd3 b6 h4 Qd6 d4 Qd7 h3 Qd6 h2 Ne2 e4 Qc6 e3 Qd7 Rh3 Nbc3 Qe8 Qe1 d1B Rb1 Nh6 g8Q Na6 b8N Nf7 b7 Nc5 g7 Nh8 Na2 Ne4 Ka1 Kc2 Na6 d3 b8Q d2 Rg1 h1Q Rb7 Qf3 Rg4 Qf5 Bb2 Qa5 Nc5 Rg3 Qa7 Rg2 Nd3 Rb8 Qd8 Be6 Nac1 Rc8 Qa8 Bb3 Qh7 Bf7 Qf5 Bg8 Qfd7 Bf7 Rg5 Bg8 Rd5 Bf7 Rd6 Bg8 Nc3 Bh5 Rc6 e2 Qf2 e1R Qe3 Bgf7 g8Q Bfe2 Qg7 Reg1 Nf2 Bec4 Nd3 Rb8 c8R Bcd5 Ra7 Rb3 Ne2+ Rc3 Rac7 Bg8 Rb7 Bdf7
b2N4/3QPq1N/3p2kb/r2Qn1N1/1n5Q/1R3BN1/2r1R1bp/1q2NKnR w - - 0 1 illegal: No possible last move, all moves rejected
4nB1r/2P1qQ1p/3nn2b/3NK1N1/2r2Q1B/pR3BB1/q3Nb2/Q1bBk3 w - - 0 1 legal: proof: e4 c5 h4 b5 d4 cxd4 a4 g5 axb5 Na6 hxg5 Nb8 b4 f5 Ra5 d5 Ra2 d3 Ra6 d4 Re6 Bb7 Re5 Bd5 exd5 Qa5 Re3 Qd8 Re4 fxe4 Kd2 Kd7 f4 Kd6 c4 e5 g4 a5 b6 a4 g6 a3 g5 Qe8 b5 Kc5 f5 Kb4 c5 Nd7 d6 Ngf6 b7 Ra7 b8Q Ng4 c6 Rb7 b6 Nh6 f6 Nf7 g7 Qe6 g8Q Bh6 Bg2 Nc5 d7 Nd6 d8N Rc7 b7 Qe7 f7 Ne8 f8B Ne6 Bf3 Kc4 Ne2 e3+ Ke1 e4 g6 Kb4 g7 d2+ Kf1 d3 Kg2 Rc8 Kg3 Rc7 Qg1 d1Q Nbc3 d2 Rh3 Qc2 Qf7 d1N g8B Nb2 Nd5+ Kc4 Kg4 Kd3 Kf5 Nc4 Qgg7 Rc8 Qa1 Qa2 Qf4 Ncd6+ Ke5 Rc7 Bb2 Kd2 Bc1+ Ke1 b8B Nc5+ Ne6 Rc8 Ng1 e2 Bc7 e3 Bd2+ Kf2 Be1+ Kf1 Bf2+ e1B Bh4 e2 Rg3 Kf2 Bb8 Bd2 Bc7 e1B Ne2 Qd7 Ng5 Ne6 Bb8 Bc1 Bc7 Nf5 Bcd6 Qe7 c7 Ra8 Bc5+ Kf1 Bf2 Nfd6 Rh3 Rd8 Bfg3 Bf2 Ne3+ Ke1 Bg4 Rc8 Qg7 Qd8 Bh2 Nc5 Bb3 Nce4 Bd1 Rb8 Nd5 Rb4 Rb3 Rc4 B2g3 Nc5 Bf3 Ne6 Qgf7 Qe7
4NQ2/3pn2N/pRN2N1q/n2Rb1NP/1rr1B3/n4Rn1/b3Q1K1/k2n2Q1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 f6 h6 g4 Ba6 g5 Qc7 f5 Qd8 fxg7 Bb7 g6 Bc8 Bg5 hxg5 Kf2 e5 b4 Ke7 h4 Kf6 c4 g4 h5 e4 b6 Ke5 b7 d3 b5 Kd4 b6 a6 f6 d2 f7 g3+ Kg2 e3 c5 e2 c6 Ne7 g8Q Nf5 g7 Bc5 f8Q Bb4 c7 Qg5 Rh3 Bd6 Ra5 Ne7 Nc3 Nbc6 b8R Qh6 b7 Be5 Nd5 Kc4 Nf6+ Kc3 Nh7 Kb2 Qe1 d1N Rd5 Na5 Nf3 Ka1 Nfg5 Ra7 Qe6 Ra8 g8N Ra7 Kf3 g2 Ngf6 g1N+ Kg2 Rg8 Qf2 Rh8 Rf3 e1N+ Kh1 Ra8 Bd3 Ne2 Qg1 Nc2 Be4 Na3 Kg2 Rg8 Qc6 Rg6 Qc2 Ng3 Qe2 Ra7 Ra8 Rg7 b8N Rb7 Nc6 Rb4 Rb8 Bb7 c8N Rc4 Nd6 Rg6 Ne6 Rg4 Neg5 Rf4 Nde8 Rb4 Bg6 Rfc4 Be4 Ba8 Na7 Bc6 Rb6 Ba4 Nc6 Bb3 Rb7 Ba2 Rbb5 Bc3 Rb6 Be5
3N1Kr1/r1q2p2/1pN4P/1Q2B2b/3RB1bB/N2Qnn1Q/3N2b1/N2kb1r1 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 d5 c4 c5 cxd5 e5 fxe5 h6 a4 h5 Ra3 c4 Rb3 cxb3 gxh5 Qd7 Nh3 Qc7 Ng1 Qd8 Kf2 Kd7 Kf3 g5 Ke4 b2 Kf5 b6 d4 g4 h4 b3 e4 g3 a5 g2 d6 Kc6+ e6 Nd7 d5+ Kc5 e5 Kb4 e7 Bb7 e8Q Ra6 h6 Qc7 h5 Nb8 e6 Ra8 e7 Nf6 a6 Qc3 d7 Qc8 d6 Bc6 h7 Ka4 a7 Nd5 h6 Kb4 Rh4+ Nf4 Kf6 Bf3 d8N Bc6 d7 Bd5 Bd3 Nc6 Na3 Kc3 Be4 b1B Nf3 g1R Ne1 b2 Nec2 Na5 Nc6 Nb3 d8N Qc7 Na1 Rhg8 h8B Ng2 Bg5 Ne3 Rf4 Rg7 Bh4 Rg8 Qf1 Kd2 Qh3 Bc2 Qed7 b1B e8N Ba2 Nd6 Nd4 Ndc4+ Kd1 Nd2 Nf3 Bg7 Be6 Qd3 Bg4 Qb5 Bd5 Bh8 Rc8 a8Q Bb4 Qaa6 Ra8 Qd3 Bh5 Qab5 Ra7 Rg4 Ba5 Bg7 Be6 Rf4 Bd7 Ke7 Bb3 Bgf6 Bc4 Be5 Bdg4+ Qd7 Bf1 Qd3 Rg5 Kf8 Bg2 Q7d5 Rg6 Q5b5 Rg7 Bf5 Rg6 Rd4 Rg7 Be4 Rg5 Rd7 Rg8+ Ke7 Rg5 Nf1+ Kc1 Kf8 Be1 Nd2 Kd1 Rd4 Rg8+
n1Qnb3/2Q1q1P1/2RK3k/rQp3rp/1Nr2rR1/4Q1NR/Q3bq2/B6N w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Bb4 g6 Ke8 Bg2 Be7 Bf3 Bg5 hxg5 exf3 Kf2 Kf8 d4 Kg7 e4 c5 b4 f5 b6 a5 d6 h5 d5 a4 b7 a3 b5 a2 d7 Nf6 d6 Nc6 b8Q Qa5 d8N Re8 e5 Qa7 e6 Nd5 e7 Rh8 e8Q Qc7 b6 Qf7 b7 Nde7 d7 Rf8 Rh3 Qb3 Bb2+ Nd4 Qd2 Ra5 Qc7 Qe6 b8Q Rg8 Qb5 Nd5 Ne2 Qe7 Nbc3 Ne6 Nc6 Nd8 Nb4 Nb6 Ng3 Na8 Nh1 Bb7 Qe3 Bc6 Rg1 a1R Rg4 Rc1 Ba1 Rc2+ Ne2+ Rc3 Ke1 f2+ Kd2 f1Q Neg3 Qg1 Ke2 f3+ Kd2 f2 Qf8+ Kh8 g7+ Kh7 Qf7 f1R Qa2 f4 g6+ Kh6 Ke2 Rh8 g8R Rc4 Kd3 Qf2 g7 Rg1 Re8 Rf8 Qc8 Rf5 Rf8 Rg5 Rf7 f3 Rf6+ Kh7 Qc7 Rgc1 Qc8 Rf4 Rd6 Rcc4 Rf6 Bd5 Rc6 Bf7 Qc7 Be8 Qc8 Ne6 d8Q Kh6 Qdd7 Qg1 Qa7 f2 Qac7 f1B+ Kd2 Rcd4+ Kc3 Be2 Kb3 Qf2 Kc3 Rf6 Kb3 Nd8 Kc3 Rd3+ Kc4 Qg1 Qe4 Qf2 Qee5 Rc3+ Kd5 Rgg6 Qee6 Rf4 Qe3 Rc4 Bf6 Qf7+ Kd6 Rg5 Ba1 Qe7+
r4qr1/b2N2RR/N2k1q2/4N3/2qKR1b1/1QBnpQ1Q/PrN2p2/1N1r4 w - - 0 1 illegal: No possible last move
K2Q3N/3Qq2n/1p1n1r2/2Q5/1RBNkpqr/N2nb1Q1/Q1r2RP1/rR6 w - - 0 1 legal: proof: f4 d5 b4 g5 c4 a5 cxd5 axb4 h3 Ra5 Bb2 Bg4 hxg4 Ra3 Bd4 Ra8 Be3 e5 fxe5 Ra4 Bf4 gxf4 Kf2 Ra7 Ke1 Ra8 Kf2 Ke7 Kf3 h5 Ke4 c5 a4 b6 d4 c4 g5 f3 a5 b3 e6 Kd6 a6 f2 g6 h4 g7 f6 e7 b2 e8R h3 a7 h2 Ra2 c3 Qc2 Rh5 Nf3 Nh6 g8Q Qc8 Qg3+ Kd7 d6 Kc6 d7 Qa6 d5+ Kc5 d8N Qa3 d6 Nf5 d7 Bh6 Nf7 Bd2 d8Q Nd7 e3 Rc8 a8Q Nf8 Nh8 Nh7 Rg8 Rh3 Rg4 Rh4 Bb5 f1R Qc1 Kb4 Kd5+ Kb3 e4 c2 e5 Be3 Rg1 h1Q e6 Qh3 e7 Qa7 e8Q Nd6 Qec6 Qe7 Qcd7 f5 Bd3 Rc3 Rc4 Rf2 Kc6 Qg4 Kc7 Rf1 Kb8 Rf2 Qa5 Rf1 Qd2 c1N Na3 b1R Qc5 Ra1 Ka8 Rf2 Re4 Rc4 Qe2 Kc3 Rb2 Rf1 Rb1 Rf2 Qa2 Rc2 Rf1 Rf2 Bc2 Nd3 Bb3 Rc2 Qcc7 Rc5 Rb4 f4 Bc4 Rf5 Rf2 Rf6 Qc5 Nb2 Bb3+ Kd3 Bc4+ Ke4 Nd4 Nd3
1Nq5/KnBQ4/2n1B1n1/RPn4p/1n1B3B/r1p1n2Q/1Br3N1/Q1N2bk1 w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 a4 e5 axb5 e4 h4 Ba6 f4 exf3 Ra4 Bg7 Rf4 gxf4 b4 Bc8 g5 Bh6 g6 Bg5 hxg5 Qd6 Qa4 Qd7 Qd1 Qd8 Kf2 Ke7 e4 Kd6 d4 c5 g7 a5 g6 f5 e5+ Kc7 b6+ Kd7 b7 h5 b5 c4 e6+ Kd6 e7 a4 e8Q a3 Bh3 c3 Ne2 a2 Na3 a1N Bb2 Ra7 Nc2 Ra3 Nc1 Ne7 g8N Nbc6 g7 Nb3 Ne1 Nba5 Ng2 Ng6 Nf6 Rf8 g8Q Qc7 b8B Nb7 Nd7 Rf7 Ke1 f2+ Ke2 f1N Kd3 f3 Kc4 f4 Ba7 f2 Be6 f3 Nb8 Ng3 Qh7 Bd7 Qc8 f1N Qa4 f2 Rh4 Rb3 Qa1 Ne4 Rf4 Nec5 Rh4 Ke7 d6+ Kf6 d5 Ke5 Rh2 Ke4 Qg7 Be8 d7 Kf3 d8B Ra3 d6 Bd7 Bh4 Rf5 Rh1 Rd5 Bb6 Rd2 Qh7 Rc2 Kd5 Be8 d7 Bf7 d8B Bg8 Qcd7 Qc8 Bbc7 Bf7 Bhf6 Bg8 Bd4 Bf7 Rh4 Bg8 Rf4+ Kg3 Qhg7 Kh2 Bh4 Kg1 Rf6 Nce7+ Kc4 Ne3+ Kb4 f1N Rf4 Ne5 Qg4 N5g6 Qh3 Bh7 Rf2 N3d5+ Kc4 Bg8 Rf6+ Rf2 Bf7 Na4 Ra6 Nb4 Bd5 Nec6 Ra5 Be6 Bh8 Bf5 Be6 Rc2 Bg7 Nce5+ Kd4 Bd3 Bgf6 Ne3 Bg7 Nd8 Bh8 Bf1 B8f6 Nb6 Kc5 Nec6 Bd4 Nc4 Bg8 Nd2 Kb6 Ne4 Bf7 Nb7 Be6 Ncd8 Ka7 Nec5 Bde5 Bd3 Bef6 Bf1 Bd4 Ndc6+
1n2B1r1/2Q5/1N1b1b2/4Rnp1/RQr1Q3/rN1R1N2/npr4P/KNN2k1b w - - 0 1 illegal: No possible last move, all moves rejected
2B1Q2B/6bn/K1p2Bn1/BPn1NQR1/2R1r1nQ/b7/1k1pB3/rbR1r3 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 axb5 e5 c4 dxc4 gxh5 Ba3 Qc2 Bd6 Qd1 Bf8 f4 Bb7 e4 Qd5 f5 Kd8 Nd2 Bc6 Nb3 Qe6 fxe6 Bd7 d5 Ke8 Nd4 exd4 e5 Bc8 Ke2 Ke7 h4 a5 b4 g5 b6 f5 b5 c6 b7 a4 h6 f4 h7 d3+ Kd2 f3 Kc3 d2 Kb4 g4 h5 f2 h6 a3 Kc5 a2 Kb6 g3 Rh4 c3 Nf3 g2 Bb2 g1N Rc1 a1B Be2 f1N Qc2 Nh3 Rc4 Ne3 Qf5 Na6 b8R c2 Bc3 Bd7 Ba5 Nf6 Rb7 Rg8 h8B Neg4 h7 Nc5 Rc7 Nf4 d6+ Ke8 e7 Kf7 Bg7 Ng6 h8B Bb2 Rc8 Ba3 Re8 Be6 d7 Bd5 Rd8 Be4 e8B+ Ke7 e6 Kd6 e7 Nh7 Bf6 Bg7 Bf7 Re8 Be6 Ra7 Ne5 Ra8 Rb1 c1R Ra1 Rd1 Rac1 Re1 Rc8 Bb1 Rc7 Rf8 e8Q Rf7 d8Q+ Rd7 Qb8 Re7 Bc8 Kd5 Qa7 Na6 Kb7 Re6 Qaf2 Nc5+ Kb6 Re7 Qh4 Ra7 R4c2 Kd4 Rc4+ Ke3 Nf3 Re4 Ne5 Ra8 Rf7 Ra7 Rf8 Ra8 Rg8 Ra7 R4c3+ Kd4 Rc4+ Kd5 Qh1 Bb4 Bd3 Ngf8 Qg5 Bh6 Qf5 Ra8 Rg6 Bg7 Rg5 Ng6 Be2 Ra7 Qh4 Ra6+ Kc7 Ra8 Bb6 Ra1 Ba5 Ba3 R4c3 Kd4 Kb6 Bd3 Rb3 Bc2 Rb4+ Kc3 Rc4+ Kb2 Ka7 Bb1 Kb6 Nd7+ Ka6 Nc5+
Nn2b3/4bnQ1/1pN3KQ/3Q3B/k1P1Bp2/pR2Nq2/3BrB1r/B3r2b w - - 0 1 legal: proof: f4 e5 fxe5 c5 d4 Qb6 dxc5 Qc7 g4 Qd8 b4 a5 a4 axb4 Ra3 h5 gxh5 bxa3 Kf2 d5 Kg3 Kd7 Kg4 Kc6+ e6 g5 Kf5 f6 e4 d4 h4 b6 c4 g4 e5 d3 a5 d2 a6 g3 h6 g2 h5 Qd5 a7 Ba6 e7 Qf7 e8Q+ Nd7 h7 Bd6 e6 Bf8 h6 Be7 Ne2 g1R Nd4+ Kc7 c6 Qf8 Rh3 Rb8 a8N+ Kd6 c7 Kc5 c8Q+ Kb4 Bg2 Qf7 Nc3 Bb5 Qf8 Qg7 Qc6 Ne5 Be4 Bd6 e7 Nd7 e8B Qg3 Qg7 Re1 Bh5 Qf3+ Kg6 f5 Nd5+ Ka5 Rg3 f4 Ne3 Be7 Qd6 Re8 Nc6+ Ka6 Rh3 Nb8 Qd5 Re2 Qh1 d1B Bd2 Re1 Nb4+ Ka5 Nc6+ Ka4 Rg3 Nf6 Qh4 Ng4 Rh3 Rhg8 h8B Rgf8 h7 Nh6 Qhg5 Nf7 Q7h6 Be2 Bd4 Rh8 Qg7 Bf1 Q5h6 Bg2 Rg3 Bh1 Bc5 Rhf8 h8B Re2 Qgh7 Re1 Ba1 Rh8 Q7g7 Rc8 Nb4 Be8 Nc6 Rc7 Ng2 Ra7 Bf2 Ra5 Ne3 Rb5 Rh3 Rb2 Ba5 Rbe2 Bd2 Rh7 Nd1 Bf6 Bg4 Rf1 Qh4 Qg2 Rb3 Rfe1 Ne3 Qf3 Qhg5 Rh5 Q5h6 Rh2 Bh5 Be7
nk2r3/Nq1BpR1B/4QB1q/b1R2Q2/1p1B2b1/n7/rKPpQ1B1/3R2q1 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 g4 h5 g5 g6 Nd2 Rh7 Ndf3 Rh8 Ne5 Nf6 fxg6 Ng8 Ng4 hxg4 f5 Ra4 Kf2 Ra7 Ke1 Ra8 Kd2 b5 a4 d5 h4 Kd7 a5 Kc7 f6 b3 Kc3 d4+ Kb2 g3 f7 b4 h5 g2 g7 d3 g6 d2 h6 Bd7 h7 Bc6 a6 Bf3 a7 Kb7 c6+ Kc7 Ne2 g1Q Nc3 Qgd4 Bb5 Na6 Rf1 Qh4 Qe2 Nf6 g8Q Bg7 f8Q Qd7 Qge6 Ne4 Qff5 Rhe8 h8B Be5 g7 Qh6 g8B Nd6 Bf6 Bg4 Bh7 Kc8 Ba4 Nb5 c7 Na3 Rb1 Kb7 c8R Bc7 Nb5 Ba5 Rc5 Nc7 Rf2 Rad8 a8B+ Kb8 Be4 Na8 Bg2 Qb7 Na7 Rd3 Bac6 Rh3 Bd7 Rh1 Ka1 Rd1 Bcb2 Rc1 Bbd4 b2+ Ka2 Rh1 Rd1 Re1 Kb3 b1Q+ Bb2 Qc1 Bbd4 Rh1 Rdf1 Qe1 Rf3 Qf2 Kb2 Qg1 Rd1 Rh3 Rf2 Rb3+ Ka2 Rb1 Rff1 Rc1 Kb2 Ra1 Qf4+ Nc7 Bh4 Qh2 Qg5 Na8 Rf7 Qh1 Qgf5 Qg1 Bhf6 Ra2+
6q1/1p4nk/q5N1/1q2rbBp/r1QPQQQp/1RQB1N2/NKbn4/5B2 w - - 0 1 legal: proof: c4 f5 e4 d5 exf5 g5 cxd5 a5 b4 axb4 h4 Nd7 h5 Nb8 a3 Qd7 Ba6 Qd6 Bf1 Qd8 g4 Be6 h6 Ra7 a4 Bd7 Rh4 gxh4 g5 Bb5 g6 Nf6 g7 Ra8 g8B Bg7 hxg7 Bc6 Ra3 Bb5 Rh3 Bd7 Rh1 Bc8 f4 h5 d4 c5 Kd2 e5 Kc2 c4 d6 b3+ Kb2 e4 d7+ Ke7 a5 e3 a6 e2 a7 e1Q Nf3 Qe3 Bh7 Kf7 Nc3 Na6 Rh3 Qee8 Na2 Ne4 f6 Rg8 f5 Nc7 Bg5 Nd2 Qb1 Qe5 Qe4 Ne6 Qg4 Qf8 d8Q Qb5 Qa5 Qd8 Qc3 Re8 Bg6+ Kg8 Qe4 Qda5 Rg3 Qaa6 Rh3 Rb8 a8Q Re7 Qa7 Ra8 Qb8 Ra7 Qg3 Re8 Qgg4 Re7 Be8 Kh7 f7 Ra8 f8Q Ra7 g8N Ng7 f6+ Bf5 f7 Re5 Qc5 Ra8 f8Q Ra7 Kc1 b2+ Kc2 Ra8 Ne7 b1B+ Kc1 Bc2 Ng6 Bd7 Qff4 Bf5 Qcd3 c3 Qdc4 Qac6 Bd3 Ra4 Bf7 Qc8 Be8 Qa6 Bb5 Qg8 Bf1 Bb1 Bd3 c2 Kb2 c1Q+ Ka1 Qf1 Kb2 Qd1 Bf1 Bd3 Qc3 Bc2 Bbd3 Qe2 Q5c4 Qb5+ Q4b3 Ne8 Bc4 Ra8 Qcd3 Nb1 Nd2 Qbd5 Re3 Ra7 Nf3 Ng7 Qd2 Qde6 Qbb4 Ra8 Rb3 Ra4 Qdc3 Nd2 Ba6 Q2c4 Bb5 Qcd5 Bbd3 Qb5 Qbc4 Qea6
3q3b/5Bk1/1R3b2/1p3pnQ/N4Rr1/1pnQn1r1/N1QP3K/QnR1N2Q w - - 0 1 legal: proof: f4 e5 fxe5 a5 b4 axb4 c4 d5 Bb2 h6 cxd5 f6 g4 Qd6 g5 Qd7 g6 Qd8 Bd4 Be6 Be3 Kd7 Bg5 Bf7 gxf7 hxg5 Kf2 Ke7 Kg2 b5 e4 c5 h4 g4 a4 g5 a5 b3 a6 g3 h5 c4 d6+ Ke6 a7 g4 h6 c3 h7 c2 d7 c1N Bc4+ Ke7 e6 Nh6 e5 Bg7 f8R Na2 Qc2 Rg8 h8Q Nf7 Nc3 Na6 Rh6 Rb8 a8N Nc7 Rc1 Ng5 Nf3 Nd5 Nb6 Ne3+ Kg1 g2 Nba4 Rb7 Kh2 g1N Ne1 Ne2 Qhh7 Rb6 Qhe4 Rd6 Qh1 Rd4 Bd5 Bh8 Bc4 Nb4 Na2 Nbd5 Rg6 Ndc3 Bd5 Nb1 Rh6 Nec3 Bc4 Qb8 Rf7+ Kd8 e7+ Kc7 e8Q Qd8 e6 Kd6 e7 Ke5 Rf8 Rg7 Bf7 g3+ Kg1 g2 Kh2 Rg4 Rg6 Qc8 d8Q Rg3 Qa5 Qd8 Qd7 Rg4 Qdd3 f5 Rb6 Rg6 Rg8 Bf6 Rh8 Rg8 Rh4 Bh8 Be6 Kf6 e8Q Kg7 Qh5 Rg3 Rf4 Rg4 Bf7 Rg3 Qhf1 g1B+ Kh1 Bf2 Kh2 Rg4 Qh1 Bh4 Qdf1 Ne6 Qfd3 Bf6 Qb4 Ng5 Qa3 Re8 Qab2 Re4 Qa1 Rg3 Rf1 Reg4 Rf3 Be5 Rf4 Bf6
5R2/2R1pP2/1bRBK1nb/2RQpQ2/1k1q1N2/1q2QB1n/1rpqB1R1/7b w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 f6 axb5 Bd7 Ra4 Be6 Ra1 Bc8 e4 g5 f4 Qd6 e5 fxe5 f5 Qh6 Nc3 Qd6 Nce2 Qd8 g4 a5 h4 Ra6 h5 Qd7 Nf4 gxf4 g5 Rg6 hxg6 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 b6 h5 g7 c5 f6 h4 d6 f3 Kd5 f2 b7 h3 d7 a4 g6 a3 Ne2 h2 Nf4 c4 Qf3 c3 Qe3 c2 Be2 f1Q Ke6 a2 d5 Qg1 d6 Ka4 b4 Qf2 b5 Qe8 b6 Kb4 Ba3+ Ka4 f7 Nf6 g8R Ka5 g7 Na6 b8R Qd8 Rb7 Ne4 Rc7 Nb4 b7 Nd5 b8Q Bb7 Qc8 Ba8 Rhb1 h1Q Rb6 Qb1 Rbc6 Qb3 Rg1 a1B Rg2 Rh4 Rh8 Ka4 g8B Bd4 Bh7 Bh6 Rf8 Bb6 Bg6 Qe1 Bgh5 Nf2 Bhf3 Qd2 Rc5 Nh3 R7c6 Qc7 d8R Qa7 Rd7 Rg4 Rdc7 Rh4 Bb2 Kb4 d7 Qa1 Bc1 Qad4 d8Q Rg4 Rf2 Rg1 Rg2 Bb7 Bb2 Rb1 Bc1 Rb2 Qd6 Nf6+ Qd5 Ba8 Qa6 Nh5 Qad3 Ng3 Qg6 Nf5 Qg4 Nh4 Qf5 Ra2 Bb2 Ng6 Bc1 Ka4 Ba3 Rb2 Rb5 Bb7 Bd6 Ba8 Rbc5 Kb4 Qg1 Bb7 Qe3 Qbc3 Rg1 Nh4 Qa2 Ba6 Bg2 Bc4+ Bd5 Ng6 Rg5 Bd3 Bh1 Be4 Qd5 Bg2 Rg4 Qb3 Rg3 Bf1 Bhf3 Bg2 Rg5 Bh1 Rg3 Qbc3 Rg2 Qb3
2K2r1k/p1n5/R4b2/1Q2Bp1b/Q1qq4/1NBNN3/Br1pPrB1/2bB3Q w - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 fxe5 h5 g4 Nf6 d4 cxd4 g5 Nc6 gxf6 Ne7 Ra3 Ng8 Rg3 Qc7 Rg2 Qd8 Rg4 hxg4 Kd2 Kf7 Kd3 d5 c4 g5 h4 g3 h5 g2 h6 g4 h7 g3 e6+ Kg6 c5 Qe8 f7 Kg7 b6 Be7 f8N Bd6 b5 Qd8 c6 Nf6 e7 Be6 e8B Qd7 c7 Rc8 b7 Ba3 b8Q Qd8 b6 Bb2 b7 Nh5 Na3 Bd7 Nf3 g1B Nd2 g2 Ne6+ Kh6 Nb3+ Be3 Nc2 g1R Bd2 Rg4 Bc3 Rg2 Nf4 Rf2 Bg2 Bec1 Ne3 Kg7 Rf1 Be6 Ba4 Rf8 h8B+ Kh7 Be5 Qh4 Qa8 Nf6 b8Q Bf7 Qb5 Rb8 c8B Ne8 Be6 Nc7 Qc2 Bh5 Bf7 Bd2 Ra1 Bdc1 Qd1 Qg4 Qac6 Qh4 Qh1 Qg4 Nd2 Rb6 Bd1 Qg8 Ra6 Rbb8 Kc2 d3+ Kb3 d4 Kc4 Ba1 Nb3 d2 Kc5 d3 Kd6 Bab2 Bc2 d1Q Kd7 d2 Nd3 Qg1 Be6 Qg4 Bd1 Qc4 Be4 Qg4 Bg2 Qgd4+ Bed5 Ba3 Qa4 Be7 Qc5 Rb4 Qcb5 Bd8 Kc8 Bf6+ Qe8 Rf7 Qeb5 Kh8 Na5 Rb2 Be6 Qcc5 Ba2 Qcc4 Nb3 Rf8+
NQn1b1qr/1qR1n3/1q3p1q/QN2bRN1/1B1Rpp2/3N3Q/3P4/1N1k1K2 w - - 0 1 legal: proof: c4 a5 f4 g5 a4 d5 cxd5 b5 axb5 h6 g4 Ra6 e4 Rc6 e5 Rd6 exd6 gxf4 g5 h5 Be2 Bf5 Bf3 Bc8 Bg4 hxg4 h4 Kd7 b4 c5 h5 e5 b6 e4 h6 a4 h7 f6 g6 g3 g7 g2 b5 c4 b7 c3 b6 a3 Qf3 c2 Nh3 a2 Ba3 Nh6 g8N Be7 Ng5 Qc7 Qh3+ Ng4 Bb4 Qc3 Nh6 Nc6 b8Q Qc4 b7 Na7 Nf5 Ne3 Nd4+ Nf5 Nb5 c1Q+ Kf2 Qa3 Rc1 Qa6 Qa8 Qb3 b8Q g1Q+ Ke2 Qgg3 Kf1 Qb7 Rc2 Qge3 Rc4 Qeb6 Rc7+ Kd8 d7 Bd6 Qe3 Ke7 d8N+ Bd7 Nde6 Nc8 Qh3 Qg3 Qa5 Qh2 Nc5 Be5 Nge6 Kf7 d6 Kg6 Nd3 Be8 d7 Nfe7 d8R Qg3 Rd4 Qh2 Qh4 Kf5 Qg3 Qh6 Qf3 Rf8 h8N Rg8 Nf7 Rh8 Qh1 Kg4 Nfg5 Kg3 Rcd7 Kg4 Nec7 Kg3 Na8 Kg4 N1c3 Kg3 Rb1 a1Q Rc7 Qa2 Rc1 Kg4 Nb1 Qg8 R1c5 Kg3 Nf7 Kg4 Qh4+ Kf3 Rcd5 Bd6 Rf5 Be5 Qh3+ Qg3 Qh2 Qg8 Qh4 Qgf8 Kg1 Ke2 Ng5 Qf7 Qh3 Kd1 Kf1 Qg8
1b4K1/P1Np1p1N/1k2BQqp/2rpr3/3r2Q1/Nq3Q2/2R1R1R1/n2N1b1N w - - 0 1 legal: proof: h4 e5 f4 a5 fxe5 g5 hxg5 Bh6 d4 Bg7 b4 Ke7 c4 Ra6 d5 Bf8 c5 Ra8 Bd2 Ke8 c6 Na6 d6 Nc5 bxc5 cxd6 Bb4 axb4 Kd2 b5 Kd3 d5 Kd4 h6 e4 b3 g4 b4 a4 b2 a5 b3 g6 Rb8 g7 Nf6 g8Q Ba6 g5 Rh7 e6 Qb6 Ke5 Kd8 g6 Kc7 g7 Be2 e7 Bc4 e8Q Nh5 a6 Qa5 a7 Bb5 Ne2 Nf6 Ng3 Rb7 Ra2 Rh8 Na3 b1Q Qf3 b2 Bh3 Qae1 Rh2 Qd2 Re2 Qdd3 Qe6 Rb6 Nh1 Ne8 Qef6 Qd2 Be6 Kc8 c7 Kb7 c8R Qbd1 c6+ Ka6 c7 b1R Rg2 Q2e1 Rae2 Rb8 Kf5 Qh4 e5 Rb4 Qd8 Rb1 Re3 Bf1 Ree2 Qha4 Qg5 Rh7 Qh8 R8b5 g8N Bb4 Nf6 Bd6 Qgg4 Rg7 Nh7 Nf6 Qd8 Nh5 Qe7 Nf4 Kf6 Qab3 Bf5 Qb4 e6 Qd3 Qd8 Rc1 e7 Rc4 e8N Kb6 Be6 Rg5 Qe7 Re5 Kg7 Rce4 Qf6 Rd4 Kg8 Qb2 Ng7 Qdc2 Nf5 Nd3 Ne3 Ne1 Nd1 Qbb1 Re8 Qcb3 c8N+ Ka6 Rf8 Bb8 Nd6 Nc2 Rc8 Na1 Ne8 Kb6 Rc4 Rc5 Nc7 Q1d3 Rcc2 Qg6+
5N1N/bkB2Bp1/nn3BN1/br2QRPb/nq4N1/K3N1Q1/1Q3br1/1b3q2 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 e5 c4 Rh6 cxd5 Rb6 f4 exf4 g5 Rh6 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 h4 Kd7 d4 f5 Kd2 c5 Kc2 Kc7 Kb3 a5 e4 g3 d6+ Kb7 b6 g2 d7 f3 b5 f2 h5 f4 d5 a4+ Ka3 f3 h6 c4+ d6 c3 h7 c2 e5 Nh6 e6 Ra6 e7 Rg8 h8N Ng4 e8N Nf6 Qd2 Qe7 d8B Nd5 Nc3 Bf5 Nge2 g1B Bb2 c1N Nf4 Bb1 Bc4 f1Q Nf6 f2 Nd1 Na2 Bc7 Nac3 Ng4 Ra7 Nde3 Na6 Nfg6 Ra8 Bb3 Qe4 Ba1 Qb4+ Kb2 Rb8 d7 Bc5 d8Q Re8 Qf6 Rf8 Qe5 Rf3 Rh3 Rg3 Qdd4 Rg2 Rf3 Nf6 Rf5 Nd7 Qdf4 Bd4 Nc4 Be3 Qg3 Bd2 Nce3 Be1 Kc1 a3 Bf7 a2 Bb2 Na4 Ba1 Ka8 b7+ Ka7 Bb2 a1B Bc3 Ndb6 Bb2 Re8 b8N Kb7 Nd7 Rb8 Bd4 Bac3 Ndf8 Qe2 Bc5 f1B Be7 Bef2 Bf6 Bce1 Qb2 Qd3 Qbe5 Be2 Qb2 Nc4 b6 Bf3 Qge5 Qf1 Qg3 Kc6 b7 Ncb6 Nh2 Bh5 Nhg4 Re8 b8Q Re5 Qe8+ Kb7 Qe6 Rb5 Qee5 Na8 Nc4 Ba7 Nce3 Bgf2 Nd1 Ba2 Nde3 N8b6 Kc2 Bc4 Kb1 Bd3+ Ka2 Bb1+ Ka1 Qbc4 Nc2 Qd4 Nce3 Bd3 Ka2 Ba5 Ka3 Bb1 Qh4 Qf4 Qg3 Qb4+
4Q2r/1QbQ3b/QB3bRn/2pnB3/2q1Bb2/1kP1rb2/R2QN2K/1q1r3R w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Nc3 h4 Ne4 Qg5 Ng3 hxg3 Qd5 Qh4 Qd1 Qd8 b4 Ke7 h4 Ke6 f4 a5 e4 g5 h5 c5 h6 d5 b6 g2 Kf2 a4 Kg3 a3 b7 d4 h7 d3 b5 d2 b6 a2 Ne2 g1B Bb2 Bh6 Bg2 Nd7 b8B Ndf6 b7 Qd4 Bc7 Qc4 b8Q Nd5 Bb6 Ra3+ Bc3 Ba6 Qb7 Bd4 Qe1 d1B Qd2 Rb3 Kh2 g3+ Kh3 Bg1 Bd4 Re3 c3 Bh2 Bf3 Bb5 Qa6 g2 f5+ Kd7 f6 Kc6 f7 g1Q e6 Bc7 f8R g4+ Kh4 g3 Kh3 g2 e7 Qf1 e5 Bg5 e6 Nh6 Be5 g1B+ Kg3 Bba4 Rf6 Bac2 Rg6 Bf2+ Kh2 Bfh4 Qb7+ Kb5 Be4 Ka4 e8Q+ Kb3 e7 Bf6 Qf7 Bhg5 e8Q Bb1 Qfd7 Bd3 Rc1 a1R Rc2 Qf5 Ra2 Qf1 Ng3 Bf3 Ne2 Qb1 Qec8 Qb2 Qa6 Rd1 Qca8 Qb1 Q8b7 Rc8 h8Q Bc2 Qhg7 Rh8 Qe8 Bg4 Bg2 Nf4 Qgd7 Nd5 Rg8 Bh7 Be4 Bf3 Rg6 Bf4+
Qnr1Nn2/N1N5/b1p1R1K1/k1n3RR/4nNnr/5Bqn/2P1Q2Q/n1b1N3 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 a5 Ke3 g5 Ke4 g2 Kf5 d5+ e6 a4 b4 c6 f4 a3 e4 g3 h4 a2 e5 d4 b6 d3 h5 g4 b5 d2 h6 Na6 h7 Nb4 b7 Nd3 b8R Qh4 b6 Kd8 b7 Kc7 Nc3 Kb6 Nf3 g1N Kg6 g2 e7 g3 e8N Ba3 e6 Bc1 f5 Nf6 e7 Ne2 Ne1 g1N Bg2 Ng4 f6 Nd4 f7 Ngf3 f8Q Ne6 Qe2 d1N Nc7 N1f2 e8N Ndc5 N3b5 Nfe4 Na7 Ka5 Rb1 a1N Rb5+ Ka4 Rg1 Qh3 Bh1 g2 Qh6 Qg3 Qh2 Bd7 Rd8 Bc8 b8Q Ba6 Qb7 Rb8 Qa8 Rc8 Rd6 Nfe5+ Kf5 N6g5 Re6 Ned7 Kg6 Nb8 Qd1 Rf8 h8N Rf4 Qf3 Nh7 Qe2 Ncb3 Rg5 Nbc5 Rf1 g1N Bf3 Nh3 Rh5 Ka5 Rg1 Qh4 Rg3 Ngf6 Rgg5 Nf8+ Kh6 Rg4 Ng6 Qg3 Nf4 Rh4 Kg7 Ng4 Kf7 Nh7 Kg6 Nf8+
r1QKR1Bq/1q2Q3/5B1N/2B5/b1NN3r/QB1p2B1/n1nPb2b/1rqb1k2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 h5 g4 a5 c4 d5 f3 a4 c5 d4 c6 h3 b7 Kh4 g5 Kg3 f4 Kf2 f6 a3 g6 b3 g7 h2 b6 a2 f5 a1Q c7 d3+ Bb2 h4 f7 h3 f6 Rh4 Qc1 Nh6 g8B Qa6 Bg2 Bd7 c8N Nf5 Nf3 Nd4 Re1 h1B Na3 h2 Nc4 Ba4 N8d6 Nc2 Ke6 Nc6 b8Q N6b4 b7 Na2 Nd4 Qb5 Be4 Bf3 N6f5 h1B Qc8 Be2 b8B Qb7 Bd5 Bhf3 Nh6 Bh5 Bc3 b2 Bh2 b1Q Qa3 Qc1 Bb8 Bg7 f8Q Bd1 f7 Be5 Re3 Bh2 Bg3+ Kf1 Qe8 Bhf3 f8B Bfe2 Kf7 e5+ Qee7 e4 Ke6 Qe8 Kd6 Qbb1 Kc7 Qh5 Kd8 Qb7 Bb4 Qe5 Bc5 Qh8 Bde6 Bh5 Re2 e3 Bg7 Bf3 Bf6 Bg4 Rg2 e2 Bd5 e1R Re2 Bh5 Qh7 Qa1 Re8 Bdf3 Qe7 Qab2 Bde6 Rb1 Na5 Bd1 Bb3 Qc1 Nc4 Bhe2
1b3Q2/1N3N1k/3N1nn1/Bp3qR1/1Pq1N1R1/1rr2N2/b1n1RbQ1/1q1Qn1K1 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 a4 c4 d5 cxd5 gxh4 Bc4 Bh6 Bb3 axb3 Qe2 Bg7 Qd1 Bf8 Kf1 Kf7 d4 Kg7 f4 e5 a4 b5 g4 c5 d6 h5 d5 c4 g5 e4 a5 b2 d7 c3 g6 c2 d6 e3 f6+ Kh6 g7 h3 f7 h2 a6 h4 a7 h3 f5 Kh7 f6 Qc7 d8N Nd7 Nb7 Ne5 d7 Ng6 d8N Bd6 f8R Be6 f7 Ba2 Na3 b1N Re8 Nf6 f8Q Rc8 Nc4 Na3 a8Q e2+ Kf2 e1N g8N Qd7 Be3 c1B Bb6 Nac2 Nf3 Qf5 Nf7 Bb8 Rg1 h1Q Ba5 h2 Ncd6 Rc3 Re2 Be3+ Kf1 Rb3 Rb1 Bf2 Rc1 Nd4 Rc4 Ndc2 Rg4 Rc3 Nd2 Qhd5 Nf3 h1Q Rg5 Qh4 R1g2 Qb3 R2g4 Bg3 Kg1 Qb1 Ngh6 Rg8 Ne4 Rg7 Nfd6 Bf2+ Kf1 Rgc7 Nhf7 Rb3 Rg3 Qhf4 R3g4 Bg3 Kg1 Rcc3 Qa7 Bh4 Qf2 Qfc1 Qg2 Qcf4 Nf2 Qc4 Nfe4 Bf2+
rb5B/B1N3q1/bpQb1r2/1Q2Q2b/QR1n1nb1/1P1N4/N3Q3/1kbK1B1n w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 b3 gxh4 Nc3 a5 Rb1 a4 Rb2 a3 Rh2 axb2 a4 Bh6 Rh1 Bf8 d4 Kd7 f4 Kd6 g4 b1B g5 h5 f6 c5 f5 e5 g6 e4 a5 e3 g7 h3 a6 e2 f7 h2 f6 h4 a7 h3 Nf3 c4 Na2 c3 Be3 c2 Ne5 c1B Nd3 Ne7 g8Q Rh5 Qg5 Bg4 Qe5+ Kd7 d6 Kc6 d7 Rh6 d5+ Kb5 d6+ Nd5 Qd2 Qc7 d8Q Nc6 d7 Bd6 f8N Nd4 f7 Rf6 Ne6 Bh5 Rg1 h1N f8B h2 Qc8 Bg4 d8Q Qg7 Qdc7 Bc2 Q7b8 Bd1 Qdc2 Bh5 Q8c6+ Ka5 Ndc5 Nf4 Qbe8 Bb8 Rg4 Bd6 Rh4 Bb8 Nc7 Bg4 Nc3 Kb4 Na2+ Ka3 Qd3 Kb2 Qdb5 Kb1 Nd3 Ng3 Bb4 h1B Bc3 Bhf3 Q8e7 Nh1 Qee8 Nde6 Rh6 Bf5 Rh7 Nh5 Qed5 Qg6 Nf4 Rf8 Qcc5 Bd3 Qa4 Ba6 Bg7 Rf6 Nd3 Qg1 Bh8 Qg7 Nb5 Bd6 Nc7 Rb8 a8Q Rd8 Qc3 Rc8 Ba7 b6 Qa8c6 Ra8 Nb5 Bb8 Rh6 Bd6 Rg6 Bb8 Rg4 Bd6 Rd4 Nhf4 Rb4 Bh5 Q3c5 Bb8 Nc7 Nd4 Q5b5 Bc2 Ne5 Bf5 Nd3 Bfc8 Qf3 Bcg4 Qee5 Ba3 Rc4 Bd6 Kd2 e1B+ Kd1 Bd2 Qfe2 Be3 Rb4 Bc1
q1q2rNQ/k2nQr2/1r5n/2b4p/B3R2P/qB1Q1QN1/K2B1Q2/N2br1q1 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 d5 cxd5 g5 Ra3 g4 Rf3 gxf3 b3 Bf5 b4 Bc8 e4 Kd7 d4 a5 Kd2 h5 Kc3 c5 Kb2 Kc7 g4 Kb6 h4 f5 e5 f2 d6 c4 d7 c3+ Ka2 f3 e6 c2 g5 a4 g6 f4 e7 a3 e8B Ka7 g7 Bc5 b6+ Kb7 b5 Ra6 d5 Qc7 d8Q Bh3 d6 Ra8 d7 Rh6 Nd2 Rh8 Nb3 Qc8 Na1 Nh6 g8N Ra6 Ne2 Bg4 Bd2 c1Q Qe7 Ka8 d8Q Nd7 b7+ Ka7 Qb3 Rb6 Ng3 Qc3 Be2 f1R Bc4 f2 Qc2 f3 Bb3 Rb1 Re1 f1R Re4 f2 Qd1 Re1 Qf3 f1Q Qf2 Rf6 Qf3 Rf7 b6+ Ka6 b8Q Qg1 Qf2 Bd1 b7 Qf3 Qf4 Ka7 Qf5 Qc3 Q5f3 Qb4 Nf6 Rhf8 Ng8 Qa4 Qc7 Qc6 Qcd6 Qa8 Qdd3 Qcc8 Bd5 Rb5 Bb3 Rb6 Qde3 Nf6 Bea4 Nd7 b8Q+ Ka6 Qbe5 Ka7 Kb1 a2+ Kb2 Qcb7 Qd3 Qbc8 Qh8 Bd6 Nc2 Bb4 Bd5 a1Q+ Kb3 Qac3+ Ka2 Bc5 Na1 Qc1 Bdb3 Qa3+
3r4/Brn2pB1/1qKB1P2/RrR2qQR/2N1Bn2/Bk1b2pb/3qQ3/Q5b1 w - - 0 1 illegal: No possible last move, all moves rejected
2kn3Q/3r2p1/3b1N1Q/1Bq1qR1r/N1B1q3/1p1n1KPB/Q1b4b/B3N1Bn w - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 a5 a4 axb4 f4 h5 fxe5 h4 Ra3 Bc5 Rf3 Bf8 g3 h3 Rf2 Ra5 Rg2 hxg2 Bb2 Ra6 Bc1 Ra8 Kf2 Kd7 h4 b5 e4 f5 d4 c5 e6+ Kc7 d6+ Kb7 h5 b3 e5 b2 e7 c4 e8B b4 d5 f4 e6 c3 a5 b3 d7 f3 d6 c2 a6+ Kb6 a7 Kb7 e7 Nh6 Nc3 b1Q Be3 c1N Bc4 Nc6 Na4 Na5 Qd2 Qh7 Qa2 Qb6 d8Q Qc5 Beb5 Qhf5 e8N Nc6 d7 Qe4 Qh4 Bd6 d8B Bf5 Bf6 Nd8 Ba1 Kc8 Nf6 Qee5 Qf4 Bc2 Qh4 Rb8 a8B Rb7 Qh2 Re7 Be4 Rc7 Bf5+ Rd7 Bh3 Qe4 Ne2 Qee5 Rf1 Qe4 Nd4 g1B+ Ke1 Ng4 h6 Qee5 h7 f2+ Kd2 Qe4 Nf3 Nd3 Ke2 Qee5 Qh1 Bh2 Ne1 Qe4 Rg1 Qee5 Kf3 f1Q+ Bf2 Nc1 Rg2 Qd3+ Be3 Qdd4 Bg1 Nd3 Re2 Ngf2 Re4 Kc7 Rf4 Kc8 Rf5 Qh4 Qg2 Nh1 Qd2 Re8 h8Q Rf8 Qh7 Rh8 Qdh6 Qhd4 Qg8 Rh7 Qh8 Qh4 Qf4 Rh5 Qfh6 Qhe4+
rb2qNQ1/k2NpR1N/1b2P3/b3p2n/3N2b1/1QBn1N1b/R1QR1r2/3Kn3 w - - 0 1 illegal: No extended proof kernel
5bn1/1br2Q2/N1kpQq1r/1Rp1Qn2/Q1P5/q6R/3QRbK1/n1BNn2N w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 b4 c5 e4 g5 c4 a5 h4 a4 f4 g3 e6 g4 e7 d6 f5 Kd7 e8Q+ Kc7 e5 a3 e6 a2 f6 Nd7 b6+ Kb7 e7 Nb8 f7 Nf6 h5 Qc7 b5 Ra3 h6 Ra4 h7 Ng8 Nh3 g1B Kf1 Qd7 Qd2 Qe6 Nc3 Qe1+ Kg2 Qe3 Nd1 Nc6 Nhf2 Ra7 Rh3 Qa3 Nh1 Nd4 Rb1 a1N Rb2 Bf2 Qd7+ Kb8 e8Q Nf5 Qee6 Rc7 b7 Ka7 b8N Kb6 Na6 Bb7+ Kf1 Bg7 f8Q g2+ Ke2 g1Q Qff7 Qgg3 Kf1 Qgc3 Qde8 g3 Ra2 Bc8 Kg2 Bf8 Rc2 Kb7 b6 Qd4 Qb5 Qf6 Qba5 Kc6 b7 Qab2 b8R Qa3 Rb5 Bb7 Rh6 Be7 Qa4 Bf8 Kh3 g2+ Kh2 g1N Kg2 Nf3 Rh3 Nfe7 Qg5 Nf5 Re2 Ngh6 Qd2 Ne1+ Kf1 Rg8 h8Q Rg6 Qhg7 Ng8 Qh8 Qfb2 Qhf6 Rh6 Qfe5 Nd3 Kg2 Qbc3 Qef4 Qf6 Qfe5 Ne1+
BnB5/2bbn3/1Nr5/4Rq2/q3pB2/QQrb1bpN/B2NP1r1/1Q2BK1k w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h5 g4 Rh7 g6 Rh8 b4 Bh6 g5 Bf8 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 c4 d5 h4 Kd7 h5 Ke6 b6 Kf5 b5 e5 c5 a5 c6 a4 h6 g3 b7 Kg4 h7 f5 g7 e4 g6 d3 b6 f4 c7 a3 Qa4 d2+ Kd1 a2 Qd4 a1Q Qe5 f3 Qb2 d4 Qa3 f2 Nh3 Ne7 g8B Qd7 g7 Ra6 Bd5 Qf5 g8B Bd7 c8N Bg7 Bc6 Be5 Ba2 Bc7 Bcd5 Rf8 h8B Kh4 Bg2 f1B Bf3 Rg8 Bg4 Bg2 Be5 Bf3 Bf4 Rg5 Bb2 Rg6 Bc3 Rc6 Bb4 Ra4 Ba5 Rac4 Bb4 Na6 b8Q Rc2 b7 R2c3 Qa7 Nb8 Q7a4 Qb2 Ba5 Qb4 Q4b3 Qa4 Nb6 Re3 Bc3 Rd3 Kc2 d1R Nd2 Rg1 Rh2 Rg2 Kd1 Re3 Ke1 Rd3 Bb4 Rdc3 Kf1 d3 Rh1 Qf7 Bge6 Qf5 Qb1 Be8 Bc8 Bd7 Bc5 Kg4 Bf2 Kh4 Be1 Kg4 Ndc4 d2 Rh2 d1B Nd2 Bc2 Rh1 Na6 b8Q Bd3 Rh2 Rh6 Ba8 Rhc6 Nd5 Kh4 Q8b3 Nb8 Nb6 Kg4 Ng1 Qh7 Rh6 Qf5 Re6 Kh4 Nh3 Kg4 Ng5 Kh4 Re5 Kg4 Ne6 Kh3 Ng5+ Kh2 Nh3 Kh1
1Qq2K1k/p1Rr1b2/1b3RQ1/bRp2r2/Q6n/1qP1N3/3Bbq2/QBn3BQ w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Nc3 h4 Ne4 Qg5 Ng3 hxg3 Qd5 Qh4 Qd1 Qd8 Kd2 Kf7 Kc3 d5 Kd4 g5 f4 Kg7 h4 c6 e4 g2 b4 g3 b6 g4 e6 c5+ Ke5 d4 b5 d3 b7 d2 c3 Qd7 b6 Qa4 e7 Rh7 Kd6 Qc2 h5 Qa2 h6+ Kh8 e5 Nf6 e6 Kg8 f5 Kh8 Rb1 Na6 b8Q Ng8 f6 Nb4 b7 Qb3 f7 Nd3 Nf3 g1Q Ne5 g2 Nc4 g3 Ne3 Qf2 Rh3 Rg7 h7 g1B Bg2 Bd7 Be4 g2 Rf3 Nh6 Rf6 Qf5 Qe1 d1B Bd2 Be8 Qf1 Qc2 Rb5 Be2 Qa1 Nc1 Bd3 Qd1 Be4 Rg5 Bb1 Bg7 f8B Bf7 e8Q Bh2+ Ke7 g1Q Qg3 Rh5 b8Q Qb3 Qg6 Bc7 Qc6 Bb6 Qh1 Bg8 Ke8 Qgf2 Bd6 Qh3 e7 Nf5 Bh2 Nh4 Bg1 Rf5 Rb4 Bh6 Rb5 Bf4 Kf8 Bfc7 e8Q Bf7 Qee4 Ba5 Qea4 Bcb6 Qg5 Be6 Nc4 Rd5 Qe8 Rad8 Ne3 Bg8 Qgf4 Qc8 Qb8 R8d6 Ke7 Kg7 h8R Be6 Qh5 Rf5 Rh7+ Kg8 Rhf7 Rd3 Qg6+ Kh8 Rg7 Bd8+ Kf8 Bdb6+ Qe8 Bg8 Rb7 Rd7 Rc7 Qb7 Qg6 Bf7 Nc2 Qa6 Ne3 Qc8+
5brQ/1p1Rq1B1/1n1B1r1Q/kNQqB3/7B/1P3R1q/B1pRb3/q1b3Kn w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 c4 gxh4 cxd5 a5 b3 a4 Nc3 a3 Na4 Qd6 Nb2 axb2 Qf3 Qd7 Qd1 Qd8 g4 Kd7 d4 b1Q a4 e5 f4 c5 Kf2 Kc7 g5 Kb6 f6 h5 f5 e4 g6 h3 a5+ Ka7 d6 h2 g7 h4 d5 c4 a6 Kb6 d7 h3 a7 c3 f7 Qd3 f6 Qe7 d8B+ Kb5 d6 Nh6 g8Q Qe5 d7 Ba3 f8B Qc4 f7 Rh7 Qh5 Nf5 Bh4 Rh6 d8R Qe7 Qgg5 Rf6 Ne2 Nd7 Bf4 Nb6 Be5 Ka5 Rad1 Qd5 Bg7 Bc1 f8B Ng3+ Qf5 Bd7 Rd2 Bb5 Nd4 Be2 Rd7 Rb8 Rg1 h1Q Qh6 h2 Nb5 Rd8 Bg2 Ra8 Rf1 e3+ Ke1 Qg1 Be4 h1Q Bb1 c2 Ba2 Qh3 Qfg5 Re8 Qgh5 Nh1 a8Q+ Kb4 Qc8 Ka5 Qc5 Rc8 Bh8 Re8 Bfg7 Rg8 Bd6 Qgg3+ Rf2 Qge5 Rf3 Qa1 Qe8 Bc4 Qb8 e2 Qd8 Ng3 Kf2 e1B+ Kg1 Be2 Qb8 Nh1 Qbc8 Bg3 Qb8 Rf4 Bge5 Rf6 Bg7 Be1 Rd1 Bc3 Rd2 Bb4 Qe8 Bba3 Qeh5 Bb4 Qh8 Bba3 Q5h6 Qb1 Qc8 Qef7 Bb8 Bf8 Bbd6 Qe7 Qc5 Qa1
n1B5/1NQNk1b1/Q2p1rr1/Q2n3p/qBr1b1Q1/2bPR2N/1qpQ2B1/5K2 w - - 0 1 legal: proof: b4 b5 c4 g5 e4 f5 exf5 Nf6 a4 Ng8 h4 a6 hxg5 bxc4 b5 a5 Ra3 Nh6 Rb3 Ng8 Rb4 axb4 f4 c5 g4 e5 a5 h5 a6 d6 g6 b3 b6 b2 g7 c3 d3 e4 f6 c4 f7+ Ke7 a7 c2 f5 c3 b7 e3 f6+ Ke6 g5 e2 g6 Qb6 Qd2 Bd7 Bg2 Rh7 Rh3 Qc6 Na3 b1R Re3+ Qe4 Nc4 Nh6 g8B Bg7 Nh3 Rb4 Ba3 Nf5 Na5 Rc4 Bb4 Na6 b8Q Ne7 Nb7 Rh6 Qc7 Rf8 a8Q c1Q+ Kf2 e1B+ Kf1 c2 Bh7 Bh8 g7 Qb2 g8Q Nd5 Qg5 Rg8 f8Q Bc6 f7 Rgg6 Qg8 Bg7 Qg4+ Kf6 f8N Qe8 Qa5 Nac7 Q8a6 Na8 Qh8 Qe4 Nd7+ Ke7 Qc8 Rf6+ Bf5 Rhg6 Qde2 Bc3 Qcc7 Nf4 Be6 Qd4 Qe1 Be4 Bf5 Qd5 Qc1 Qc6 Qd2 Qa4 Nb8+ Ke8 Bc8 Kf8 Nd7+ Ke7 Bh1 Nd5+ Bf3 Nf4 Bg2 Nd5+
2N1r1N1/6NQ/Q1Bp1bb1/1BB2pN1/p4n2/1nqP3q/2k1N1n1/KR2qQ1r w - - 0 1 illegal: No possible last move
n2bQ1QR/1q1n4/b2bK2R/3pq3/3NRpp1/RBqk2N1/N1rP3r/2RQ4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ba3 Qb6 axb5 Qf6 b6 Qg5 b5 Qd8 Bb4 cxb4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 Kd5 Kf5 h4 g5 c4 a4 e4+ Kf6 c5 d6 h6 a3 c6 g4 c7 a2 b7 f3 b6 b3 h5 f2 e5+ Kf5 h7 f6 h6 b2 e6 Nd7 b8N Qe8 e7 Ba6 Nc3 b1Q Nc6 Rc8 Bc4 f1Q b7 Qh3 b8R Qb7 Bb3 Qe3 Rc1 a1B Na2 Qc3 Rh3 Kf4 Ke6 Ke4 Ra8 d5 Nd4 f5 Nge2 f4 Ng3+ Kd3 Rh1 Bb2 Re1 Ngf6 Re4 Nb6 Ra7 Qh5 e8Q Bd6 Qg8 Na8 Qe8 Bb5 Ra3 Nd7 Qg8 Ba6 Qe8 Rg8 h8R Ba1 h7 Qe5+ Kf7 Rg6 Qg8 Rh6 Qe8 Rb8 c8Q Rh2 Qcd8 Rc8 Qg8 Qa5 Qdf8 Rc2 Qe8 Qg7+ Ke6 Qc3 Qef7 Bb2 Qfe8 Qe5+ Kf7 Bb5 Nf3 Qg7+ Ke6 Qcc7 Ra7 Qcc6 Ra3 Bc3 Nd4 Ba5 Qgf7 Rc5 Rg8 Bd8 Qff8 Qh8 Rg6 Ba6 Rh6 Rc2 Qg8 Qg7 h8R Qc3 Rh5 Qg5 R5h6 Qe5+
R1qN3k/3B1K1p/1r3Nq1/pn2R1Q1/rnQ2Rp1/n1N1rNQ1/P7/4bb1N w - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f6 d4 Kf7 dxe5 gxh4 g5 Ke7 g6 Ke8 Bg5 fxg5 Kd2 d5 Ke3 b5 Kd4 a5 e4 h3 c4 b4 f4 b3 c6 g4 e6 h2 Ke5 b2 c7 d4 f5 d3 e7 d2 f6 Qd7 g7 Kf7 e8N Ra6 c5 Rd6 c6 Kg6 f7 Kh6 Nc3 b1Q Qb3 d1R Bb5 Ba6 c8Q Qa7 c7 R1d4 Bd7 Qe1 Nf3 Nf6 g8Q Qa8 Rf1 h1N Ng7 Rb6 Nh5 Nc6+ Ke6 Nf2 e5 Nd5 Ng3 Ndb4 Nh1 Qe4 Rae1 Nc2 Qc4 Be7 f8N Na3 Qb8 Nd3 c8R Bb4 Kf7 Na7 e6 N7b5 e7 Qac6 Rd8 Qc8 e8N Qf5+ Nf6 Qe4 Qd6 Qg6+ Ke7 Rf4 Re5 Re4 Qgd5 Kg7 Rf2 Rg8 Ne6+ Kh8 Re8 Rf8 Nd8 Re3 Q5c5 Re2 Qe3 Re1 Qg5 Re3 Ncd5 Bd2 Nc3 Nb4 Qdd3 Re4 Qde3 Be1 Qef4 Re3 Qg3 Qc7 Ne6 Qb7 Ra8 Rb8 Nd8 Qc8 Nd2 R8b7 Rf4 Rc7 Nf3 Rc5 Qf1 Rc4 Kf8 Nc6 Qe2 Ra4 Qc4 Nb4 Ke7 Bb7 Kf8 Be4 Ke7 Bd3 Kf8 Bf1 Ke7 Qc2 Kf7 Qg6+
rN3N2/n3R1p1/1QbknbR1/1pqp3K/8/1bB2RPN/bQ6/2rQQ1nQ w - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 e5 fxe5 a5 b4 axb4 g3 h4 Bg2 h3 Kf1 hxg2+ Kf2 Ra4 Ke1 Ra8 Kf2 Ke7 Kf3 b5 Kg4 f6 h4 d6+ e6 b3 a4 b2 e4 Qc7 c4 Qa7 h5 Bd7 a5 Nc6 e5 Qa6 h6 f5+ Kh5 f4 h7 f3 Bd2 f2 Nh3 f1B Ra3 g1N Nc3 b1B Ne4 Bbd3 Bc3 Bg2 Nf6 Qb7 a6 Nd8 c6 Qa7 c7 Nh6 c8Q Rb8 c5 Ng8 c6 Qc5 c7 Qb6 a7 Bde4 a8Q Bd5 Qca6 Nf3 c8Q Qg1 Qb6 B7c6 Nd7 Rb7 Nb8 Bb3 Rh2 Ke8 e7 Rc7 Qe6 Ba2 Qeb3 Qc5 Qb2 Ng1 Qab7 Kf7 e8R Be7 Rh1 Bf6 Re7+ Kf8 Rh2 Bgd5 e6 Bab3 Rf2 Ba2 Ra6 Bdb3+ Rf5 Nf7 Qa8 Ng5 Rf3 Rc8 Rea7 Rc7 e7+ Kf7 Rb7 Ke6 e8Q+ Ne7 Rba7 Rf8 h8N d5 Ng6 Rg8 Nf8+ Kd6 Rb7 Nc8 Qee1 Ne6 Rba7 Rf7 Re7 Na7 Qab7 Bg5 Qc8 Rf4 Qe8 Bf6 Qg6 Rb4 Qgc2 Re4 Qh2 Re2 Qh1 Rc2 Ra4 Rc1 Rg4 Ne2 Rg6 Ng1 Nfd7 Re8 Nf8 Rd8 Na6 Ra8 Nb8 Qc4 Ng5 Qb4 Nh3 Qc5
R3N3/1p4N1/1b2qb2/QPQr1pb1/1R2Q2Q/3Qrnp1/2bRNq1n/B2K1k2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 Bg2 e5 fxe5 a4 cxd5 Qg5 Be4 Qf6 Bc2 Qd8 Bb3 axb3 h4 Kd7 a4 f5 d4 c5 e4 g5 h5 b2 h6 c4 a5 g3 e6+ Kd6 b5 c3 h7 g2 a6 g4 e5+ Kc7 d6+ Kb6 d5 Kc5 d7 Kc4 e7 g3 e8N c2 e6 Qh4 d8R Be7 a7 Bf6 e7 Qe4+ Ne2 g1B d6 Nd7 Ng7 Nh6 e8Q Ng4 Nd2+ Kd3 Rh4 b1Q Bb2 Qe6 Qc1 Bb6 Nc4 Nde5 d7 Nh2 Nd6 Qba2 Rb4 Rg8 Qe7 Re8 h8Q Rb8 Qf4 c1B a8Q Nef3+ Kd1 Qa7 Qe5 Bcg5 Qh4 Qaa2 Qd5+ Ke3 Be5 Kf2 Qa5 Kf1 Qde4 Qb2 Ra3 Qd4+ Rd3 Qf2 Ba1 Ra8 Rd2 Ra6 Qa2 Ra3 Qf8 Rd3 Qa5 Re7 Re8 Rd5 d8Q Bd7 Qg8 Bc6 Qf8 Qf7 Qd7 Ree5 Ra8 Qe6 Qc4 Re3 Nde8 Rdd3 Qfe7 Be4 Qec5 Rd5 Qdc6 Bb1 Qd3 Qf7 Qe6 Qg8 Qe5 Qe6 Qee4 Bc2+
4R1r1/5p2/2Q1pNQ1/q2Br1n1/p5n1/qBbBPbK1/1kb1R3/b1RQ1BB1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 g4 h6 g6 Ba6 Nc3 Bb7 Ne4 Bc8 g5 h5 Nf2 Na6 Ng4 hxg4 Ra2 Nb8 Ra4 Nc6 Ra1 Nb8 Qd2 d5 Kf2 Kd7 h4 Kd6 Rh2 Ke5 c4 a5 b4 e6 c5 a4 c6 d3 h5 Kd4 c7 Ra5 b6 Qd7 g7 Bd6 g6 Rh6 b7 Rb5 Nh3 Rh8 h6 Bf4 h7 Ne7 Ng5 Na6 b8R Nc5 Ne4 Re8 g8B Bb7 c8B Qd6 h8Q+ Be5 g7 Nc6 Bh7 Rg8 Nf6 g3+ Kg2 Ba8 Bb7 Ne4 Re8 Ng5 Ba3 Qc7 Rc1 Qa5 Qe1 d2 Bc2 Kc3 Qh5 d4 Qg6 Rc5 b5 d3 b6 Rb5 Bf8 Bd4 Bd6 Ne5 Bc5 Ng4 Bc6 Be5 b7 Bd4 b8Q Bb7 Qf2 d1B Qd6 d2 Qe1 Ba8 Ba7 Rf5 Bf3 Re5 Qd7 Be4 Bd3+ Kb3 Qc6 Ba1 Bc4+ Ka3 Bb3 Bb1 Bfd5 Be4+ Kg1 Bf3 Rf2 g2 Bb6 Ne3 Kh2 g1B+ Kg3 Ng4 Rg2 Bgd4 Rh2 Bdb2 Bg1 Bc3 e3 Bc2 Re2 Bb1 Rc2 d1Q Qd2 Qc1 Qd1 Qb2 Rc1 Rh8 g8B Bd3 Qh5 Bc2 Bh7 Rg8 Bd3 Qa2 Qh6 Kb2 Qg6 Qa3
1N1Bk3/4r2n/B3B3/1N1Q2p1/1n2b1bb/pqnNB2R/1Q1p1BPp/Qr2K3 w - - 0 1 illegal: No possible last move
1N2r3/b2b2Rp/B1K3r1/2p2p1P/NkqpQQb1/4B1nQ/Q2b3B/Nn5Q w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 d4 gxf4 b4 e5 d6 Bh6 d5 Bf8 Ra3 Qe7 Rd3 Qd8 Rd4 exd4 Kf2 Kd7 Kf3 a5 Ke4 c5 h4 f6 g4 a4 h5 f3 g5 f2 b6 a3 b5 a2 b7 a1B b6 Ra2 g6 Ra4 g7 Ra6 Nc3 Ra7 Na4 Nh6 g8Q Nf7 Be3 Ne5 Nf3 Qc7 Rg1 Nd3 Ne1 Bc3 Rg7+ Be7 Nc2 Nb4 Na1 N8c6 b8B Na2 b7 Ra6 Qf7 Re8 Qg8 Kd8 d7 Bd2 Qb1 Qb6 Bh2 Qb3 b8N Bd6+ Qe6 Be5 Qh3 Kc7 d6+ Kb7 d8Q+ Ne7 d7 Nf5 Qc1 Qc4 Qa5 Rae6 d8Q+ Bc7+ Kf3 Nc3 Qd6 Nb1 Qf4 Ng3 Qd1 Rc6 Qe1 Be6 Qc1 Nh1 Ke4 Rd6 Qd1 f5+ Ke5 Ng3 Qa8+ Kc8 Qb3 Bd8 Qa2 Bb6 Qh1 Rc6 Qh6 Ba7 Qf4 Rc7 Kd6 Kd8 Rg4 Rg7 Kc6 Rg6 Rg5 Rf6 Rg7 Rg6 Bg2 f1B Bd5 Qc1 Bc4 Qc2 Ba6 Qc4 Beg1 Bg2+ e4 Bf3 Be3 Bg4 e5 Bg8+ e6 Bf7 Qh6 Ke7 Kb7 Kd6 e7 Be6 Qg5 Rf8 e8Q Rh8 Qc1 Kd5 Qee7 Re8 Kc7 Ke5 Kc6 Ke4 Qh1+ Kd3 Nb6 Kc3 Qf4 Kb4 Na4 Qc3 Qeh4 Qc4 Qfe4 Na3 Qg5 Nb1 Qgf4 Bd7+
1nRQKQB1/2p1N3/N2Np1pQ/R1b2N1b/8/1nR5/1k2Pp1p/1r1qNq1r w - - 0 1 illegal: No proof kernel
N1N1Nn1n/3nR3/b1kBK3/n4Qqr/b1P3r1/1q1r1NNR/1N2b3/1NR5 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 cxd4 f4 f5 gxf5 e6 e4 Ke7 e5 Ke8 Be2 Be7 Bg4 Bf6 exf6 hxg4 Ra2 g5 Ke2 d5 Kd3 Kd7 b4 a5 c4 g3 h4 g2 f7 a4 f8N+ Kc7 f6 e5 b6+ Kb7 f7 a3 h5 g4 f5 g3 b5 Ra6 h6 Qh4 h7 Nh6 f6 Nc6 Nd7 Rd8 h8R Ne7 f8N Ra5 f7 Ng6 Nf6 Qh3 Ne2 g1Q Qc2 g2+ Be3 Qc1 N8h7 g1R f8N Nf7 N8d7 Nf8 Ng5 Rg4 Ne8 Qf3 R8h5 Nh8 R5h3 Qg3 Rb2 a2 Rb3 Qf3 Ng3 a1N Rb2 Nb3 Nc5+ Kb8 Qf2 Ba6 Na4 Kb7 Rd2 Qfd1 Bf4 Rd6 Nb2 Qdc2+ Ke2 d3+ Ke3 d4+ Ke4 Rd7 Kf5 e4 Ke5 e3 Re2 d2 Kf6 Rd5 Bd6 d1B Qf4 d3 Nf3 Rh5 Qf5 d2 Ree1 e2 Ke7 Ka8 b7+ Ka7 b8N Kb7 b6 Rd5 Kf6 Na5 Nc6 Rd3 Ne7 Qa4 Nc8 Kc6 b7 Qa3 Bb4 Ba4 Bd6 d1B Ke5 Qg5 b8N+ Kb7 Nd7 Kc6 Ndb6 Qb4 Na8 Qb7 Ref1 e1N Nfd2 Qb3 Rf2 Bc2 Re2 Bd1 Re4 Be2 Rf1 Ng2 Rc1 Ne3 Nf3 Nd5 Re3 Nb6 Re4 Qd2 Kf6 Qe3 Re7 Qg5+ Ke5 Nh7 Ke6 Nd7 Qf6 Qh6 Qg6 Qg5 Qf5 Nhf8+
3k4/4p1pn/2rNb2q/nNN1P3/rRNQ2pb/NR2N3/q1N1R1B1/6bK w - - 0 1 legal: proof: c4 b5 g4 f5 a4 fxg4 axb5 h5 b3 d5 cxd5 Na6 Nh3 Nb8 Nf4 Qd6 Ba3 Qd7 Ng6 Qd8 Bd6 h4 Bg3 hxg3 Nxf8 Be6 Bh3 Bf5 Bf1 Bc8 f4 c5 e4 a5 h4 g2 Kf2 g1B+ Kg2 a4 d4 c4 b6 a3 b4 a2 b5 c3 e5 c2 b7 c1B f5 Rh5 d6 Bf4 d5 Rh8 h5 Ra6 d7+ Kf7 d6 Rh6 b6 Bc1 f6 Ra3 Ne6 Bc5 Nd4 Rf3 Nb5 Bb4 Rh3 Bba3 Qd4 Bb4 Kh1 Qc7 d8N+ Ke8 f7+ Kd7 f8N+ Ke8 Nf7 Rc3 Nd7 Rd3 Bg2 Rg6 h6 Bbd2 h7 Qc2 h8N Ba5 Nh6 Kd8 Nc5 Qc4 d7 Qc3 N1a3 Rf3 Nf5 Qb4 Ne3 Bd2 Re1 Rf4 Re2 Nc6 b8N Be1 b7 a1Q Nba6 Bb6 b8R Qd2 Nb4 Na5 Nbc2 Rc6 Nf1 Rff6 Qc3 Rf3 Nd3 Nb7 Na7 Bd4 Nf7+ Kc7 d8N Nf6 Nc5 Qh6 Nd6 Be6 Qd2 Rb3 Ndc4 Bh4 Nf7 Nh7 Nfd6 Rb4 Rb3 Bg1 Nfe3 Na5 Qd4 Ra4 R8b4 Qa2 N7b5+ Kd8
1b3BB1/BqbRB3/B2p1pn1/5k2/1N1nb3/R2R1PB1/1B5r/q1Qbn1Kr w - - 0 1 illegal: No possible last move, all moves rejected
2k2q2/1p5R/p1bRR1qR/KrNq1Rn1/4B1R1/QRb4p/P1B4q/Q7 w - - 0 1 legal: proof: d4 c5 b4 d5 bxc5 Nc6 c4 Kd7 cxd5 Qe8 f4 Ne5 e4 Qd8 d6 Nc6 e5 Ke6 d5+ Kf5 Qa4 Bd7 Qd1 Rc8 Kd2 Rc7 Ke1 Bc8 e6 Rd7 exd7 Nb8 Qf3 Kg6 Qd1 Kf6 h4 g5 h5 e5 Qe2 e4 Qc2 Nc6 Qd1 Ne5 fxe5+ Kg7 g4 h6 Be3 Qe8 Bf2 Qe7 Bh4 Qd8 Nd2 Nf6 Ndf3 gxh4 g5 Ng8 g6 Qe8 Ng5 hxg5 Bg2 Qe7 Bf1 Qd8 Kd2 f5 Kc3 g4 Kb4 g3 c6 e3 c7 a6 e6 Kf6 h6 g2 h7 e2 g7 f4 e7 f3 e8R f2 Nf3 g1Q Nd4 Kf7 Bg2 f1Q Rb1 Ne7 g8R Ng6 Ne6 Qf3 Ka5 Qff6 Rb3 Bh6 Be4 Bf4 Nc5 Nf8 Qa1 Bh6 Re6 Qh2 Rg4 Qg6 Bc2 Qe8 d8Q Bd7 c8B Bc6 d7 Bg7 d6 h3 Rf1+ Bf6 Rf5 Qe7 Qb6 e1Q+ Qb4 Qeh1 d8R Qd5 Rd7 Ke8 Qa3 Bb2 Rc7 Kd8 d7 Rg8 h8R Nh7 Be4 Ng5 Rh6 Qf8 Rh7 Ba4 Rcc6 Bh8 Rcd6 Bc6 Rh6 Kc7 d8R Kb8 R8d7 Bc3+ Kb6 Rh8 Rdh7 Rg8 Bd7 Rg7 Be8 Kc8 Rb5 Rd7 Rb2 Qde5 Rd3 Ba4 Rb4 Rd5 Ka5 Rd4 Bb5 Rc4 Rdd6 Qd5 Bc2 Rd4 Bbd3 Bc6 Be4 Rc4 Kb6 Rd4 Rb3 Rb4+ Ka5 Rb5+
2nN2n1/Nn2pp1B/P4QQ1/3B1rB1/B3K3/qRB5/3n1pB1/n1k1Bq2 w - - 0 1 legal: proof: d4 d5 e4 b5 exd5 a6 g4 Nf6 h4 Ne4 c4 Ng3 f4 Ne4 a4 Be6 h5 Bf5 d6 Bg6 hxg6 Nf6 d5 Ng8 c5 a5 b4 Ra6 c6 Ra7 Ra3 Ra6 Re3 Ra7 Re6 Rb7 Rf6 gxf6 Nh3 Bh6 Ng1 Kf8 Bd2 Bg5 Bc1 axb4 fxg5 Ra7 Nc3 Ra8 Nb1 Na6 Bf4 Rc8 Bc1 Nb8 Qd2 Qe8 Qd3 Rd8 Qd1 Rd7 cxd7 Qd8 Ke2 Kg7 Ke3 h5 a5 c5 a6 b3 Qd4 c4 Na3 c3 Ke4 b2 Rh3 b1N Ne2 c2 Bg2 h4 Rb3 h3 Nf4 b4 Nb5 h2 Na7 Rh7 Ne6+ Kh8 Qg1 Rh4 g7+ Kh7 Bd2 Qc8 d8B Kg6 d7 h1N d6 c1N Ba5 Rh5 d8B Qc3 d7 Nc6 Bdb6 Qh3 Be1 Nd8 Be3 Nb7 d8Q Qg3 Qd4 f5+ Kd5 f4 Nd8 f3 Ke4 f2 Qf6+ Kh7 Bf4 Qc3 Bfd2 Qa1 Bc3 Qa3 g6+ Kh6 Bb6 Rf5 g5+ Kh5 Be3 Kg4 Be3d2 Ne2 Bf4 Nd4 Bc1 Nc2 Bf4 Nh6 g8B Na1 Bh7 Ng8 Bc1 Kg3 g7 Kg4 g6 Ng3+ Kd3 Ne4 Bg5 Ned6 Kd4 Nh6 g8B Nd2 g7 Nc8 Bg6 Kg3 B8h7 Kg4 g8B Kg3 Bh3+ Kf3 Bg2+ Ke2 Bd5 Kd1 Qg4+ Rf3 Bc2+ Kc1 Bhe4 Rf5 Bh7 Ng8 Bg2 Re5 Rb2 Rf5 Ba4 b3 Qe4 Re5 Qeg6 Rf5 Ra2 b2 Kd3 Qb3 Ra3 b1Q+ Kd4 Q3a2 Rb3 Qa3 Ke3 Qc2 Kd4 Qd1 Ke3 Qe2+ Kd4 Qf1 Ke3 Nc4+ Ke4+ Nd2+
r2kn3/1q1p1Pq1/1N2rn1K/1NN1q2B/R1N1N1B1/N1qb2Q1/q4Q2/b1N5 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 b4 h6 g4 Bb7 f5 Ba6 Bf4 Bc8 Ra3 Kf7 Rg3 gxf4 g5 Ke8 g6 Na6 Rg2 Nb8 Rg5 hxg5 Ke2 a5 Kf3 e5 Kg4 f3 c4 e4 h4 a4 c6 f2 c5 e3 h5 a3 b6 a2 g7 a1Q f7+ Ke7 c7 e2 b5 e1Q c6 Ra2 h6 Rb2 Kh5 g4 b7 g3 b6 g2 f6+ Ke6 h7 Ra2 Qg4+ Kd6 Na3 Qee8 Qg3+ Ke6 Ne2 g1Q Bh3+ Kd5 Nc1 f1Q Bg4 Qde7 Rh4 Nh6 g8B Na6 b8N Qgc5 b7 Nb4 Na6 Qfb5 b8N Qf2 Nc5 Ba6 c8N Re2 c7 Qb7 Nc6 Qc3 N8a7 Re6 c8N Bd3 Na5 Bg7 N5c4 Na6 N7b5 Kc6 N8b6 Nc7 Ne4 Qec8 f8N Qa2 Bf7 Ne8 Bg6 Qd6 f7 Ng8 Kg5 Qdc7 B6h5 Ngf6 Kg6 Rg8 h8Q Q7e5 Qh6 Qca8 Qhf4 Bh8+ Kh6 Qac8 Nd4+ Kc7 Ndb5+ Kd8 Qff2 Qcc6 Nc5 Qg2 Nh7 Qg1 Ng5 Rf8 Qge3 Qgg3 Nge4 Qg2 Bh3 Qg8 B3g4 Qe1 Rh3 Ke7 N1b3 Qh2 Ng5 Nd6 Nb2 Ra8 Rh4 Nde8 Bf3 Kd8 Nc1 Qhb8 Ra4 Nd5+ Bg6 Bf6 N2c4 Ba1 Bg4 Qc3 Qeg3 Ndf6 Nge4 Qbe5 B6h5 Qg7#
4n2Q/1b1k1B1q/Qq2r2b/Q1QPQ1Q1/2q1qR1Q/p4rRr/6q1/KN5N w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 b3 f5 Qc2 f4 Ba3 h6 Be7 Nc6 Qd1 Nd4 Bg5 Nf5 gxf5 hxg5 d4 a5 Kd2 c5 Kc1 g6 Kb2 g4 e4 a4 h4 c4 b6 f2 h5 f3 f6 g3 f7+ Ke7 b7 g2 b8Q g5 e5 g4 b4 g3 d6+ Kd7 b5 Ra5 b6 Qg5 h6 Ba6 h7 Bg7 f8Q Qg4 e6+ Kc6 b7 Bb5 e7 Ra6 d7 Qe4 d8Q Bh6 Nh3 g1Q Qd2 g2 Qg5 Nf6 Qa7 Ne8 b8Q Qh2 Qbg3 g1Q Ra3 c3+ Ka1 c2 Qa5 c1Q Bc4 f1Q Q3h4 f2 Rg3 a3 Bf7 Qfg2 d5+ Kd6 Qa8 f1R Nf2 Bc6 Qa7 Rb6 Q7a6 Qhh3 Rh2 Bb7 Nh1 Qhf5 Rhh3 Kd7 Rg4 Rf4 Rhg3 Rf3 Rf4 Qc8 Qgh5 Qcc4 Q5g5 Rg8 h8Q Qh7 Qhe5 Rgg6 Qfh8 Rge6 Qec3 Rb2 Qcb4 Qb6 Qbc5 Qgf1 Qhe5 Rh2 Qh8 Qg2 Qhe5 Qd8 Qh8 Rh3 Qhe5 Nc7 e8Q+ Kc8 Qef8 Kd7 Qfg7 Ne8 Qh8 Qb6
1r1Q2q1/2qrbKQp/1N2n3/QQ4r1/3P1n1k/1QN2R2/1qBQ1R2/q1qQ4 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b3 g3 Bb2 Qg5 Bd4 Qd8 Bf2 Ba3 h3 Bg4 hxg4 Qf6 g5 Ne7 Qc1 gxf2+ Kd1 Bc5 g4 Ng8 Qc2 Qe7 Kc1 Qd8 Qd1 Bf8 Kb2 Ke7 Kc3 c5 Kc4 a5 e4 f5 d4 f3 e5 f4 e6 a4 g6 Kf6 g5+ Kf5 g7 Kg4 g6 a3 b4 a2 b6 Ne7 g8Q Qc7 g7 Qc8 d6 Ra6 b7 Ra8 b5 Qd8 b6 Nbc6 b8Q Ra6 d7 Ra7 b7 Nd5 e7 Qc7 e8Q Be7 Rh3 Nd8 Bd3 f1R Ne2 f2 Nd2 f3 Nc3 Nf4 Qa8 Rg1 b8Q f1Q Qbb3 Nde6 d8Q Qe2 Qeb5 f2 Rf3 f1Q Qbc2 Rb7 Qaa5 Kh4 Rb1 a1Q Rb2 Qfg2 Qf7 Qef2 g8Q Qg7 Qff8 Qf6 Qfg7 Rg5 Qcb3 Rb8 Bc2 Qfe5 Qge8 Rf8 Qeg6 Rf7 Qd3 Qg2 Ndb1 Qd2 Na4 Qc1 Ra2 Qcb2 Nb6 Qf6 Nc3 Qfe5 Qgg8 Qh8 Qgf8 Rff5 Qf6 Rd5 Q3d2 Rd7 Qg7 Ng6 Kd3 c4+ Ke4 Ngf4 Ne2 Rg3 Kf5 c3 Qdf8 Bd6 Kf6 Be7+ Kf7 Rg4 Qd8 Rg5 Bd3 c2 Nc3 c1Q Bg6 Nf8 Bc2 N8e6 Bd3 Ne2 Qe3 Qbb1 Rc2 N2f4 Rcf2 Qbc2 Qed2 Q2b2 Bc2 Qg8+
Nr3N2/1k1NNrP1/6RB/1K1bpn1N/B1rN4/r6N/3q1QQ1/2q2nrq w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Nd7 h4 Ngf6 b4 Rg8 f5 Kf7 Ra3 Bh6 Rf3 Nb8 Rf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Rh8 Qb3 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 d4 a5 b6 h5 d6 Kc6 f6 e5 d7 a4 b5+ Kb7 g7 c5 f7 a3 f8N c4 g6 a2 d5 a1R d6 h4 Qd5+ Nc6 Na3 e3 Nc2 h3 Qg2 h2 Nd4 c3 Kd3 e2 Kc4 e1R Nh3 c2 Rg1 f3 Bh6 Qe8 d8Q h1R d7 f2 Qf6 Rb8 d8N+ Ka8 Nd8e6 Rh7 Nef4 Rec1 Nh5 Ne7 g8N Nf5 Ne7 Rf7 g7 Qd7 b7+ Ka7 Be2 Ra3 Bd1 Ng3 b6+ Ka6 Kc5 f1Q Qff2 Qe1 Kc4 Nf1 Kc5 Qd8 Kc4 Be6+ Kc5 Ra8 b8N+ Kb7 Na6 Rb8 Kb5 Bd5 Nc7 Qd2 Na8 Qe8 Nd7 Qh8 Nf8 Qh7 Qh2 Qe4 Rg6 Rg1 Qhg3 Qh1 Qgh2 Rca1 Qhg2 c1Q Ba4 Rc3 Nef5 Rc4 Ne7 Re8 N5f4 Ra3 Nh5 Kb8 b7 Ka7 b8N Kb7 Ng8 Ne7 Nbd7 Nf5 Ne7 Rb8
1B1r4/3R4/BnNq1p2/P1pQ1r1r/1K1b3B/1Bn5/1B1kNnB1/1n3nQB w - - 0 1 illegal: No possible last move
1BNqrk2/1b6/q1p2K2/bP2R2B/B3N2n/3Qb2Q/1B1p3q/BBbr1B2 w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 h4 gxh4 c4 Bg7 a4 Ne7 axb5 Ng8 b6 Bh6 b7 Bf8 e4 f5 e6 Bd6 e5 Ne7 b5 Ng8 Ra4 Bf8 b6 Nc6 Rb4 Nd4 Ra4 Nb5 cxb5 Ba3 Rc4 Bf8 Re4 fxe4 Ke2 a5 Ke3 h5 Kd4 d5 b8B e3 f4 h3 g4 a4 e7 e2 g5 e1B g6 a3 g7 h2 b7 a2 f5 a1B+ Bb2 c6 f6 h4 f7+ Kd7 e8B+ Ke7 e6 h3 Ke5 d4 Nd2 d3 Nc4 Rh7 Ne2 Bh4 Ng3 Nh6 g8B Rh8 Nd6 Bg5 Nge4 Be3 Qc2 d2 Qd3 Ra2 Rg1 h1Q Rg5 h2 Ba7 Ra4 b8B Ba6 Bad4 Nf5 Bh7 Bb7 Rh5 Bfh6 Nc8+ Kf8 Bdc3 Nh4 e7+ Kg7 Bd7 Bb6 e8B Ba5 Be6 Kf8 Bb3 Be3 Rg5 Rc4 Ba4 Qg1 Ke6 h1Q Re5 Qhh2 Bd4 Qg8 Bdc3 Qb6 Kf6 Qa7 Bg6 Qa6 Bh5 Rc5 Bd7 Rc4 Be6 Rc5 Ba2 Rc4 Bd4 Rc1 Bb1 Re1 Bc1 B1c3 Bb2 Rd1 Ba1 Bcb4 Bdb2 Ba3 Bfe2 Qh7 Ke6 Kg7 Bd4 Bc1 Bdb2 Rg8 f8Q+ Kh8 Qfd8 Kg7 Bf1 Qh8 Ke7 Rf8 Q8d7 Kg8 Qh3 Qf6+ Kd7 Qd8+ Ke6 Re8+ Ne7+ Kf8 Kf6 Qd7 Nc8 Qd8+
1Q1Q4/Q1rN1Q2/QnPQR3/K4nb1/2RQ4/N3p1p1/1qqpk3/1nr2r1B w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Nh6 f6 Ng8 g3 Bb7 g4 Bc8 f4 h6 g5 Kf7 Be3 Ke6 f5+ Kd6 g6 Bb7 Bd2 Bd5 Bg5 Bf7 gxf7 hxg5 Kd2 Kd5 h4 Ke4 c4 d5 b4 a5 b6 e5 h5 g6 h6 a4 b7 a3 c5 a2 b5 d3 Kc3 Ke3 Kb4 d2 b6 e4 h7 d4 Nf3 d3 Rh6 g4 Qa4 d1N Ne5 g5 Bg2 d2 Na3 g3 Bh1 g4 Nd7 g2 Rc1 a1Q Qa6 g1R Ka5 g3 c6 Ne7 Rc4 Rf1 Rg6 Bh6 f8Q Qb1 f7 Ke2 f6 Nf5 Qd6 e3 f8Q Bg5 f7 Ra7 Re6 Qf6 Qd8 Qfb2 f8Q Nc3 Qf7 Rf8 h8Q Rc1 Qhd4 Q1c2 Nc5 Nd7 b8Q Rc7 b7 Nb6 Qba7 Nb1 b8Q Rh8 Nd7 Rh5 Be4 Rhh1 Bg2 Rhd1 Bh1 Rf1
1Q1rr3/4B2b/2BK3p/1r1QBBpq/1pbR4/R2B4/bB1bbBP1/2N2k2 w - - 0 1 illegal: No proof kernel
3k2B1/3rR2n/1p1KBn1q/1Q3bBb/2B1p1P1/Npq1Bp2/r2N4/B3B2Q w - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 Nd7 a4 Bh6 f5 Nb8 Ra3 Qd7 Rf3 Qd8 Rf4 gxf4 Bc4 Bg5 Bf1 Bh4+ Ke2 Bg3 hxg3 Kf7 Ke1 Ke8 Kf2 e5 Kf3 c5 Ke4 h5 d4 c4 a5 h4 f7+ Ke7 f8B+ Kd7 g5 b3 g6 c3 d6 c2 Kd5 b6 a6 h3 g7 e4 a7 h2 f6 Nc6 g4 Qc7 f7 Rh7 Be3 c1Q Na3 Ba6 Nf3 Rh3 Bc4 Nd8 Nd2 Rc8 a8B Nh6 g8B f3 Bg7 Ne6 f8Q Rd8 Qf5 Bc8 Qf1 Ke8 d7+ Ke7 Be5 Nf8 Bg3 Rh5 Be1 Nh7 Qg1 Qc6+ Ke5 Qg6 Bad5 Qc3 Bde6 Rh3 Qf1 Rg3 Kd5 Rg2 Kc6 Rf2 Qb5 Qg7 d5 Qf8 Rg1 h1B Kc7 Bg2 Rh1 Re2 Rh2 Qff6 Qh1 Bf1 Rh5 Rg2 Re5 Bd3 Ndb1 Ra2 Nd2 Nf7 Kc6 Qh6 Kc7 Nfg5 d6+ Kf8 Kc6 Nf6 Kc7 Ngh7 Kc6 Re8 d8B Re7 d7 Rf7 Bc7 Ke7 d8B+ Ke8 Bd6 Rd7 Bdc5 Bf1 Bg5 Bd3 Bce3 Be2 Be7 Bd3 Bf8 Kd8 Bg7 Rd4 Bef7 Bf5 Re7 Rd7 Bh8 Qa5 Bce6 Bc4 Bg7 Qc3 Bh8 Ra7 Kd6 Bd5 Bg7 Bc6 Bc4 Be8 Bfe6 Bh5 Bh8 Nd7 Be5 Ndf6 B5d4 Qc1 Bb2 Qc3 Ba1 Rd7+
2B5/2r1R2P/1p1B1pBp/kNb5/r2b2pQ/nQp3Nn/1B2B3/q3BBK1 w - - 0 1 illegal: No proof kernel
QRR2bQ1/K4RR1/rnRNkbb1/2B2q1p/qn2B1RP/7R/b3r3/2r2b2 w - - 0 1 illegal: No possible last move, all moves rejected
1bn2qBR/B7/1BNB1pn1/2p2r1B/2P1bQrB/Qnp5/K3r1k1/R1B3q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 a4 exf4 axb5 d4 Nc3 dxc3 b4 Kd7 d4 Ke6 h4 Kf5 e4+ Ke6 b6 a5 e5 Kf5 b7 Ke4 b5 c5 e6 g5 h6 a4 h7 a3 d5 g4 d6 g3 h5 a2 e7 g2 e8B f3 h6 Bh3 b6 Be6 d7 Ra7 Ne2 g1N Qa4 f2+ Kd1 Kf3 Kc2 Bg7 Kb3 Qc8 d8B Nh3 Qa3 Nf4 Bh3 Bd5 Be6 f1R Nd4+ Kg2 Nc6 Ne7 Rh4 Rg8 h8Q Be4 h7 Be5 Qf6 Rg4 h8B Nfg6 Qf4 Rf2 Bf6 Re2 Rh8 Ra8 Bh4 f6 Nb4 Nbc6 Bg8 Bb8 Bef7 Rg5 Bc7 Rf5 Bd8 Nge5 Bh5 N5g6 Bc7 Qf8 Bd6 Nd8 Nc6 Nc8 Bc7 Ne6 Bd6 Bc7 b8B Ra7 b7 Ra8 Rb1 a1Q Ba7 Bb8 Bb6 Ra7 Bd2 Ra8 Rh1 Qd1+ Ka2 Nd4 Rf1 Nb3 Re1 Bc7 b8B Qc1 B8a7 Bb8 Rf1 Qd1 Rf3 Qg1 Rf1 Bc7 Ra1 Rb8 Qa6 Rb7 Qa5 Bb8 Qa3 Rd7 Be7 Rd4 Bd6 Bc2 Bc1 Rde4 Qg5+ Rg4 Qf4 Be4+
3NQQNb/2nBq1pN/6p1/1N1pN3/1qb2N1R/2r1n2r/NB1K2P1/3n2rk w - - 0 1 illegal: Other
2q1bBnR/2Q1rR2/p1p2q2/R1K1rQ1p/b1R4R/3b3P/1R1N4/knbR3B w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Nc3 f3 Nd5 d6 Nf4 d5 cxd5 gxf4 Kf2 Kd7 b4 Kd6 e4 Ke5 d4+ Kd6 g4 f5 e5+ Kd7 d6 Ke6 g5 Kd5 g6 h5 d7 a6 e6 c6 g7 Rh6 b6 Rh8 b5 Ne7 g8R Qc7 d8R+ Qd6 b7 Nd7 b8Q Bh6 b6 Rh7 b7 Qc7 Rg4 Ng8 Bg2 Kc4 d5 Kc3 e7 Nb6 e8R Re7 d6 Nd5 Ba3 Bd7 Rf8 Be8 d7 Qc8 Rf7 Bg5 Bd6 Kb2 Qc7 Nc3 Ra5 Nb1 Qd5 Ra7 h3 Re5 b8R+ Rb7 Ba3+ Ka1 Rh4 Ra7 Rb2 Rb7 Kf1 f2 Nf3 Bh6 Qe4 Bg5 Ke2 f1B+ Kf2 Bd3 Nd2 f3 Rc1 f4 Rc4 Bc2 Be7+ Ba4 Bf8 Ra7 Qf5 Rb7 Kf1 f2 Bh1 Bh6 Kg2 f1B+ Kf2 Bd3 Kf3 Qb8 Kf2 f3 Rc8 Ra7 d8R Bf4 Rd6 Qb7 Rcd8 Qc8 Rh6 Bg5 Rh8 Rb7 Nf1 Bc1 Nd2 Re7 Rdd4 Rb5 Rd6 Rbe5 Rdd4 Be4 Ke3 f2 Rd7 f1Q Kd4 Qf4 Rdd5 Qh6 Kc5 Qf6 Nf1 R5e6 Rd1 Bd3 Nd2 Re5+
1BBnr3/R2Rr2B/4k2q/B4brn/RqbKB1R1/1P1r1Qr1/4p3/3RN3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Nh6 h4 Nc6 f5 Rg8 Nc3 Rg7 Nce2 Rg8 Nf4 gxf4 g5 Nb8 g6 Rh8 Bg2 Ng8 Bh3 Bh6 Bf1 Bg5 hxg5 Bb7 Bc4 Ba6 Bf1 Bc8 Kf2 Kd7 d4 h5 b3 e5 f6 c5 d6 a5 g7 c4 g6 f3 Ke3 f2 f7 h4 f8R h3 d5 a4 b6 h2 b7 c3 Ra3 c2 Bd2 c1Q Bd3 f1B Ba6 Nf6 g8B Qa5 g7 Rh3+ Nf3 Bc4 Bb5+ Nc6 b8B Nh5 Bh7 Qb4 g8B Rg3 Ba6 Nd8 Rg1 h1R Rf4 Rhh3 Ra1 Rg5 Rgg4 a3 Bf7 a2 Bfg6 Rg3 Bb7 Rg2 Ne1 Rg3+ Qf3 Ra7 Ng2 Qh1 Ne1 Ra8 Rd1 a1R Bc3 R1a2 Ra1 Rd2 Ra7 Qa4 Ba5 Rd3+ Ke2 e3 Be4 Qb4 Ba6+ Ke8 d7+ Ke7 d6+ Ke6 Bab7 Ng7 Ba6 Qh6 Bab7 Nh5 Ba6 Nf7 d8R Bd7 Bab7 Bc8 Rd7 Nd8 Kf1 e2+ Kf2 Rd1 Ke3 Rd2 Bd3 e4 Kd4 e3 Ba6 Bb7 Be4 Bbd5 Bh7 Be4 Bb7 Bf5 Bc8 Rc2 Be4 Rc3 Rdc7+ Kf6 d7 Ke6 Nd3 e1R Rcb7 Reg1 Ne1 e2 Rc7 Rg7 Rcb7 Re7 Rc7 Nf7 d8R+ Rd7+ Bd5+ Kd6 Rg7 Rc2 Ke3 R3g2 Rab7 Ba6 Ra7 Qa4 Bcb7 Rd2 Rc4+ Ke7 Be5 Rg5 Rg4 Rg3 Be4 Ke6 Rd4 Qa3 Ra4 Qb4 Bec7 Rc8 Bb8 Bc4 Ba6 Rb7 Rd3 Re8 Kd4 Nd8 Rf7 Rc2 Rd1 Rc3 Rg7 Rf7 Bab7 Rf6 Rd7 Rf7 Ba6 Rfe7 Bc8 Rd3+
1nR1N3/1rN2q2/Qq2bb1k/1rN1B3/2RNp3/2NP4/n1R1b1K1/3R1rRb w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 h4 gxh4 b4 a6 b6 Be6 b7 Bf7 b5 Be6 b6 Bc8 Bb5+ axb5 Kf1 Kf7 f4 Kg7 g4 c5 d3 e5 f6+ Kh6 d6 b4 g5+ Kg6 d7 h5 f7 h3 f5+ Kg7 g6 b3 Bf4 h2 Kg2 e4 Be5+ Kh6 g7 b2 f6 c4 Nf3 c3 Qa4 h4 Qa6 c2 Rd1 c1Q Nd4 Ra7 Nc3 Be7 f8N b1R f7 Rb5 Nfe6 Bf6 f8R Qf4 Nc7 Ne7 g8R Nec6 Rac1 Nb4 Rc2 Qf5 Ne8 Na2 Rg3 Qc7 d8R Be6 Rc8 Qc5 Rf7 Rf8 Rfc7 Qb4 Rc4 h1B+ Kh2 h3 Rgg1 Bf3 Kg3 Nd7 b8N h2 b7 Be2 Kg2 Qh5 R8c6 Qf7 Rc8 Nb6 Nd7 Qb3 b8N Rb7 Nc5 Nd7 Nbc6 Nb8 Ne7 Qb4 Ned5 Qa5 Ndc7 Qb6 Kf2 Rg8 Rgf1 Rg1 Rfe1 Rf1+ Kg2 Rf4 Rh1 Rf1 Rg1 h1B+
NRn2n1k/1Rr4N/b1q1N2P/4b2R/1Q4N1/2Rr1B1p/1N1r1p2/K2nbR2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 g5 h4 Bd6 h6 Bc5 h5 Bf8 b3 Nf6 Bb2 Ng8 Bd4 Bh3 Bf2 Bc8 Bh4 gxh4 e4 f5 d4 Kf7 Kd2 a5 Kc1 c5 Kb2 a4 e5 c4 b4 f3 d6 f4 d7 h3 e6+ Kf6 d5 f2 b6 f3 d6 Ne7 b5 Bb7 h7 Kg7 Ra3 c3+ Ka1 c2 Qd4+ Kh6 Nc3 c1B Nd1 Ng6 e7 Bf4 e8N Ra5 Be2 f1R Rc3 f2 Nf3 a3 Ng5 a2 Nf6 Kg7 Qb4 Be7 Bf3 Nc6 Ng4 Ba6 b7 Nf8 b8R Na7 b6 Qc8 d8N Be5 d7 Rd5 b7 Rd3 Rg1 Rg8 h8R Qc6 Nh7 Nc8 Rh1 Re1 Rf1 Re2 Nb2 Red2 Ne6+ Kf7 d8R Rg7 Rd4 Bd8 h6 Ba5 Rd5 Kg6 Rdc5 Rgd7 Rg8+ Kf7 Rg5 Rc7 Rh5 Kg8 Rb5 Kh8 Ra8 Bh2 b8N Be5 Rb7 Nd7 Rcc1 Rc2 Qe1 Nf8 Nd7 Rc5 Nb6 Rc2 Rab8 Bb4 Qe4 Be1 Qb4 Rcd2 Na8 Bd6 Nc4 Bf4 Rc2 Bd6 Kb2 a1N Kb1 Be5 Rc3 Nc2 Nb2 Ne3 Ka1 Nd1
1nrr4/kp3p1K/1nR3R1/r2R1b1q/N3RN1N/1Bq1q3/4R1P1/rNQ4N w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 Bc5 b4 axb4 Bb2 Be7 Bd4 Bf6 fxe5 g5 Be3 Be7 Bf4 gxf4 Qa4+ Kf8 Qd1 Bg5 hxg5 Ke8 Kf2 Kd7 Kf3 h5 d4 c5 a4 Kc7 e4 Kb6 a5+ Ka7 e6 b3 d6 b2 d7 c4 e5 c3 a6 c2 d5 c1Q e7 h4 Kg4 h3 e8N h2 d6 f3 g6 f2 e6 Kb6 e7 Qh6 g7 Rh7 a7 Qe6+ Kg5 Qh3 Bc4 f1R Bb3 Qd3 Ra6+ Kc5 Nf6 Qe4 e8R Qd4 Re2 Re1 Rc6+ Kb5 Qc1 Qc7 d8R Qdb6 d7 Ka6 Nh5 Ne7 g8R Rd1 Ng3 Rh8 Rgg6 Rg8 Kh6 Rd3 Nf3 Nd5 Rhe1 h1Q+ Nh4 Qe5 Re4 Qc3 Kh7 Qh3 Nh1 Qf5 Na3 b1R R1e2 Ra1 Nb1 Rd1 Rf8 Qg5 d8N Bf5 Ne6 Ra5 Rfc8 Rd8 Nf4 Re1 Rc5 Qe6 R8c6+ Nb6 Rd5 Rg1 Red4 Qee3 Rdc4 Nd7 Ra4 Rac8 a8N Ka7 Rad4 Nb8 Re4 Nc4 Nb6 Qg4 Na4 Nb6 Qc2 Re1 Na3 Ra1 Nb1 Qgf3 Qc1 Qh5+
2n2QB1/K1p1nNpN/8/BkBbbBN1/b3B2N/b2n4/Prn4R/1qN5 w - - 0 1 legal: proof: f4 b5 g4 a5 c4 h5 Na3 f5 Rb1 e5 fxe5 d5 cxd5 f4 b4 axb4 Rb3 Ra6 Rg3 Rf6 Rg2 Rf5 gxf5 Na6 Rg3 Nb8 Rg4 hxg4 h4 Kd7 d4 b3 Kd2 b2 Kd3 b1B+ Nc2 g3 e4 b4 Kc4 g2 Kb5 f3 d6 f2 f6 b3 h5 b2 h6 Nc6 h7 Be7 f7 Nf6 f8N+ Ke8 d5 Nh5 d7+ Kf7 e6+ Kf6 e5+ Kf5 d6 Ke4 Nf3 g1B Rh2 Bg5 e7 Na5 e8B Nf6 e6 Bf4 e7 Rg8 h8N Bb7 Ncd4 Kd5 Ng5 Nc6 Nhg6 Bc2 Bg2+ Ne4 Qf1 b1N Ne2 Be5 Nfh7 Nd2 Nh4 Nb3 Bd2 Nc1 Bg6 Nd3 e8B Qb8 d8B Ne7 d7 Ba4+ Ka5 Kc5 Nc1 Kc4 Bef7+ Bd5 Ka6 Nd6 Bf5 Qb1 Ba5 Ndc8 Bge4 Rf8 Bg8 Rf7 Qe2 f1N Qf3 Bc5 Qf2 Ne3 Qf4 Nc6 Be7 Ba3 d8N Nc2 Bc5 Rf6 Ndf7 N6e7+ Ne6 Rg6 Qf2 Rg2 Neg5 Nce1 Qf4 Rb2 Qf1 Nc2 Qf2 Nb6 Ka7 Kb5 Qf4 Bc3 Qd6 Bd4 Qd8 Be5 Qf8 Nbc8+
5NNN/pp1BB3/2N1bpRp/P1pp2n1/k1p3B1/6qN/K4QrB/B3r3 w - - 0 1 illegal: No proof kernel
n4B1B/Qqbn2R1/1rrN1N2/1r3B2/bp1b2q1/1P1Nr1k1/NKNB2r1/B7 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 b3 gxh4 Nc3 a5 Rb1 a4 Rb2 a3 Rh2 axb2 a4 Bh6 Rh1 Bf8 d4 Kf7 Kd2 Kf6 Kc2 b1R g4 h5 f4 b5 d6 c5 a5 e5 d5 b4 d7 h3 a6 h2 d6 h4 a7 h3 Bd3 e4 Nf3 c4 Nd4 e3 Rg1 Qb6 d8B+ Ne7 d7 h1Q Bd2 e2 Qe1 h2 Qf2 e1B Na2 c3 g5+ Kg7 g6 Kh6 g7 Kh5 g8N Qe6 f6 Rh6 f5 Qb7 f7 h1R f6 Rh3 Qe3 Bg7 f8N Kh4 f7 Bg3 Ng6+ Kg4 f8B Nd5 Bde7 Nc7 d8B Bd7 Bf6 Ba4 Nf4 Nd7 Bde7 Re8 a8N R3h5 Nb6 Na8 Nc4 Rb5 Bh7 Re1 Nd3 Re2 Be5 Reh2 B7f6 Re7 Kc1 c2 Be4 Bh8 B6g7 Qg6 Bf5+ Kh4 Bef6+ Qg5 Rg2 Bc7 Be5 Ra6 Nd6 Qf4 Rg6 Qg4 Rg5 Rg2 Bgf6 Bg7 Qg1 Bh6 Bh8 Bg7 Bf6 Kg3 Rg6 Bh6 Rg7 Be3 Be5+ Kh3 Nf6 Re6 Kb2 c1R Qf2 Rc2+ Ka1 Rcc6 Nc2 Ba7 Bb2 Re4 Qb6 Re3 Kb1 Kh4 Ba1 Kg3 Qa5 Bc5 Kb2 Rab6 Qa7 Bd4+
1K2Rn2/1Nb2n2/1Qqp1pR1/4qnN1/1NRR2r1/1N1B1R2/3b1Pr1/2Nbr1k1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bh3 d6 Bc8 h4 gxh4 d4 c6 d5 Qd7 Bf4 Qc7 d7+ Kd8 Bd6 Qb7 Ba3 Kc7 d8N Kd7 d6 Qb6 Bb4 Ke8 Ba3 Bg7 d7+ Kf8 Bd6 exd6 Ra2 Ke7 Ra1 Bf8 Kd2 Kf6 Kc3 Kf5 Kc4 Ke4 g4 h5 b4 a5 g5 f6 g6 c5 g7 h3 Qb3 h4 Ra4 h2 Nd2+ Kf4 Kd5 h3 e4 c4 e5 c3 e6 c2 e7 c1B e8R Rh4 Bd3 Be7 Nb7 Nh6 d8N Nf7 g8R Bg4 Rg6 Nd7 Qb1 Bd1 Nb3 Qe3 Kc6 Nf8 Kc7 Bd2 b6 Qe5 Ne2+ Kf3 b5 Rg4 Rc4 Kg2 Ne6 a4 Ng5 a3 Nec1 a2 Rf1 Ra3 Kb8 h1Q Re1 a1N Ree4 h2 Red4 Nc2 Qb2 Bd8 Qb1 Qf5 Re3 Ra4 Rf3 Ne3 N7a5 Ra1 Ka8 Qe5 b7 Re4 b8R Ng4 b6 Ngh6 b7 Bc2 Rf5 Bb6 Ne2 Bc7 Re8 Rg4 b8N Bd8 Nc5 Bb3 Qb2 Re1 Nc1 Bd1 Ncb7 Kg1 Na6 Qc6 Qb6 h1R Nab3 Rh2 Nb4 Rhg2 Rf3 Nf5 Kb8 Bc7+
3NNr1q/kN1N4/3Q1Nn1/np2r3/1R1n1Rbn/n1Rp4/1PB4R/1n1Kb1R1 w - - 0 1 illegal: No proof kernel
N2rK1bN/QBb3R1/1qNB3q/nBP2rNN/n7/4kb2/1Nnn4/3Q4 w - - 0 1 legal: proof: b4 h5 c4 a5 bxa5 c5 g4 b5 gxh5 f5 e4 Ra6 a4 Ra8 axb5 Kf7 Ra3 Ke8 d4 cxd4 Rc3 dxc3 exf5 Ba6 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 g5 Kc5 Ke5 h4 Ke4 f4 d5 b6 d4 h6 c2 h7 g4 f6 d3 a6 g3 b7 d2 a7 g2 h5 Bg4 f7 Be2 h6 Ke3 f5 Bf3 f6 Bh5 Na3 Bg7 f8Q e5 f7 e4 Qe7 Kf2 f8N e3 Nd7 e2 Kd6 e1N c5 Nc6 b8N Bf3 Bb5 Na5 Ne2 g1N Nc6 Nf6 Nf4 Qb6 Nc4 Rhd8 h8N Nd5 h7 Nc3 Nf7 Na4 h8N Be5+ Ke6 Bb8 Rh7 Bc7 Nb2 Ke3 Rg7 Rf8 Nh5 Rad8 Ng5 Rf5 Qf7 Bd5+ Ke7 Ngf3 a8B Bc4 Nde5 Rd7+ Ke8 Ba2 Qe7 Bg8 Bb7 Qa7 Nbd3 Qb6 Bb2 c1Q Ba1 Qc4 Nb2 Nc2 Qf7 Qe6+ Qe7 Qh6 Nec4+ Kf2 Qf7 Qa7 Nb6 Ke3 Na8 Qb6 Qf1 d1B Qa2 Be2 Qd1 Nd2 Qa3+ Nc3 Qa4 Bf3 Qa2 Nab3 Qa7 Na4 Nd3 Rfd5 Be5 Na5 Bd6 Rf5 Nb2 Rd8+
1Q2b2K/1bB1R3/1R3n2/kr1p1RRq/3n2N1/1bb3Q1/1P2RRB1/B2n1q2 w - - 0 1 illegal: Other
Q4N1q/Rbn2Q2/2q1Bn1b/pb1B1p1Q/2BP4/4n1N1/1b2BK1B/k1B5 w - - 0 1 legal: proof: g4 h5 f4 b5 a4 g5 axb5 a5 c4 d5 cxd5 f6 b4 Bd7 b6 Bc8 b5 Ra6 bxa6 gxf4 h4 e5 g5 Rh7 Ra3 Re7 Rf3 e4 g6 exf3 Bh3 Re5 Bf1 Rg5 hxg5 Bd6 Qc2 Bc5 Qd1 Bf8 d4 Ke7 e4 Kd6 e5+ Ke7 b7 c5 g7 c4 a7 h4 a8B c3 g6 c2 d6+ Ke6 d7 Kd5 e6 h3 e7 h2 e8Q f5 Nc3+ Kc6 Ne4 Kd5 Be2 Na6 b8B+ Bb7 Ng3 Nc7 Kf2 Nf6 Nh3 Qc8 Rg1 h1Q Ng5 Qh8 d8Q+ Qd7 Qc8 Qc6 Ne6 Ba3 g8B Bb2 Be3 c1B g7 Bd2 Qf7 Bdc1 Rh1 Bd2 Rh7 Bdc1 Kf1 f2 Kg2 f1B+ Kf2 f3 Bg5 Bd2 Qcf8 Bb4 Bc1 Bd2 Q8e8 Bh6 Qc8 Bh3 Qh1 Bg2 Qhh5 Ba6 Qcf8 Bd3 Q8e8 Kc4 Nf8+ Kc3 Bb7 Kc2 Bc8 Kb1 Be6 Bh1 Qd8 Ka1 Qd5 Qb6 Qa8 Bb5 Qe7 Ba4 B6c4 Nb5 Ne4 Bg2 Kg3 f2 Bge6 f1N+ Kf2 Na7 Bh2 Ne3 Ng3 Nb5 Qd7 Bc6 Bed5 Qb7 g8B Qa6 Qde8 Qb6 Ra7 Bb7 Bge6 Qc6 Qd7 Nc7 Qdf7 Bb5
1BN1K3/p2q4/4P1B1/B2r1Nn1/1R1Q1Bnp/3Qp1nk/1B1N3b/2n1r1B1 w - - 0 1 legal: proof: d4 g5 e4 d5 a4 e5 c4 b5 axb5 f5 exd5 Ba6 d6 Bc8 b4 Be6 h4 Bd5 cxd5 gxh4 Ra2 Kd7 Re2 Ke8 Re4 fxe4 dxe5 Bg7 Na3 Bh6 Nb1 Bf8 Ke2 Kd7 Ke3 c5 Kf4 h5 Kf5 h3 Kg6 c4 Kf7 h2 g4 c3 f4 c2 f5 h4 g5 Ne7 e6+ Kc8 d7+ Kc7 g6 Kd6 b6 Ke5 g7 Rh6 g8N Ng6 f6 Kf5 b5 Rh5 b7 Ba3 d6 Nf4 b6 Ng2 Qd4 Kg4 Bb2 c1N Nd2 Qc7 Ne7 Rf5 d8Q Ne3 d7 Bb4 Ke8 Bc5 f7 Qc8 f8B Ne2 Ngf3 Nc1 Bd3 Nc6 b8B Bd6 b7 Re5 Rd1 Qc7 Nc8 h1N Bh6 Ng3 Bf4 Kh3 Re1 Na2 Rb1 Ng4 Bc2 e3 Bg6 Nc1 Qd3 Rd5 Nd4 Be5 Nf5 Nd4 Qf6 Nf3 d8B Qg7 Ba5 Ng5 Bbc7 Bd6 Qfc3 Rb8 Qcd4 Nf1 Bh2 Be5 Bg1 Bh2 Bf4 Qd7+ Kf8 Ra8 b8B Ng3 Bbe5 Rb8 Bd6 Rb3 Bb8 Qb7 Ke8 Ra3 Qb5 Ra1 Qbd3 Qd7+ Kf8 Ra3 Bbc3 Ra1 Rb4 Nce2 Bb2 Rd1 Be8 Re1 Bg6 Qa4 Ke7 Nc1 Kf8 Qb5 Ke7 Qb7+ Ke8 Qd7+
5Q2/4Bb2/1RQKQq2/q6q/1nb1r2P/1nQ1N2n/k1r2B1Q/qr3QRB w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 f5 Ng1 h5 Nc3 f4 Ne4 f3 Nf6+ Kf7 Ra5 Bd6 Ng4 hxg4 Ra1 Bf4 gxf4 Ke8 Kb3 Kd7 Kc4 Kd6 d4 g5 b4 c5 h4 a5 e4 g3 f5 g4 b6 g2 f6 g3 e5+ Kd7 b5 a4 f7 a3 f8Q a2 d6 Ke6 b7 Rh6 b6 Nd7 b8Q Ngf6 b7 Qa5 Rb1 a1Q Nh3 g1Q Qc7 g2 b8Q Nd5 Be3 Nb4 Qc6 Rh5 Bd3 f1Q Nf2 Qh2 Qd2 g1N Nd1 f2 Qc3 Nh3 Rg1 Qf4 Qbb5 Qf6 Rb3 Qg2 Be4 Qgg5 Bh1 Rb8 Rb1 Rh8 Rb3 Qh5 d5+ Kf5 e6 f1B+ Qd3+ Ke5 e7 Rh7 e8Q+ Re7 Bf2 Ba6 Qec8 Be2 Ne3 Bg4 Qg8 Be6 Q8c7 Bf7 Qc3+ Kf4 Qf8 Na2 Qd4+ Re4 Rg2 Kf3 Rg1+ Ke2 Rbb1 Nc1 Rb4 Nd3 Rb3 Kd2 Rbb1 Rb6 Rb3 Nb8 d7 Rb7 d8Q Nd7 Qdc8 Rb8 Rg5 Kc1 Qh2 Rb7 Qe6 Rc7 d6 Rc6 Kd5 c4 Bf3 c3 Bh1 N7c5 d7 c2 d8B Rc7 Rb4 Nb3 Kd6 Kb1 Be7 c1R Rg1 Rc2 Qdc3 Ka2 Q8c6 Rf1 Qbc4 Rb1 Rb6 Nb4 Qf1 Bc4
qR4bq/N1N3k1/1q3R1b/5P2/3K1Brr/1r3QN1/R1N1NN2/1qqn1q1Q w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 a4 fxe4 axb5 h5 g4 Nc6 f4 Kf7 f5 Bb7 Be2 Nd4 f6 Nf5 gxf5 Bc8 Bf3 Ke8 Bg4 hxg4 Kf2 Kf7 Ke3 e5 b4 a5 h4 c5 d4 g5 h5 g3 h6 g2 d6 a4 h7 g4 b6 a3 b7 a2 b8R g3 d5 c4 b5 c3 b6 c2 b7 Bg7 d7 Qf8 d6 Ra7 Na3 Nh6 Nh3 g1R Nf2 g2 Qf3 Ra8 d8Q Be6 d7 Ra4 Bd2 c1Q Nc2 Rb4 Qc7 Qe8 d8N+ Kf8 f7 Rb3+ Qc3 Qa4 Rh2 Qa8 Rb1 a1Q Nc6+ Bc8 N6d4 Ng4+ Ke2 e3 Kd3 e2 Bf4 e1Q Ne2 Bh6 Ng3 e4+ Kd4 Kg7 f8N e3 Ne6+ Kf7 Qb2 e2 Nc7 Be6 Rf8+ Kg7 b8N Bg8 Rf6 Qf1 Nc6 e1Q Na7 Qee8 Qbc3 Qa2 Qcc6 Ne3 Rb2 Qab1 Qce4 Rc3 Rb8 Nd1 Qc6 Rh1 Qb7 g1Q Rg2 Rh4 Rh2 Qcb2 Qh1 Q2c1 Qbf3 Rb3 Rg2 Bc4 Rh2 Rf8 h8N Bg8 Ng6 Rf7 Ne7 Qc8 Ned5 Re7 Nc3 Re4+ Kc5 Reb4 Nce2 Ra4 Be5 Rag4 Bf4 Bf7 Kd4 Qh8 Rg2 Bg8 Ne3 Bf7 Nd3 Qc8 Ke5 Qcc2 Nc3 Qcc1 Ra2 Qa1 Nc2 Qb6 Nf2 Qab1 Nce2 Qg8 Na1 Qh8 Nc2 Qa5+ Kd4 Bg8 Ra1 Qb5 Ra2 Qb6+
NKNr1N2/n1BQ3R/3nQnNq/Nr2rQ2/1n3P2/2r3b1/R3r3/2r2k1N w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 a4 fxe4 axb5 h5 f4 Be6 Be2 Bf7 Bg4 Bg6 Be6 Bf5 Bc8 Bg4 Be6 Be2 Bg4 Bf3 gxf3 hxg4 f5 Kd7 Kf2 Kd6 Ke3 Kc5 Kf4 Kc4 Ke5 Kd3 b4 a5 h4 g5 h5 c5 b6 g3 b5 e3 h6 e6 b7 a4 b6 g2 f6 a3 h7 a2 f7 e2 d6 e1N d7 g4 Nc3 g3 Nh3 g1N Nd5 c4 Qc2+ Ke2 d4+ Kf1 Nc7 c3 d5 g2 d6 Ra3 Nf2 Qg5+ Qf5 c2 d8Q Rc3 d7 Nf6 Bf4 c1R Na8 Nc2 Qe7 Nc6+ Kd6 e5 Kc7 e4 d8Q e3 b8N e2 b7 e1R Qdd7 Na7+ Nc6 Qg7 Rh6 Nh3 b8N Ng5 Nh1 Nge4 Qee6 Bd6+ Kb7 Re8 h8N Rd8 Rh7 Qh6 f8N Ree3 Na5 Be5 Bg5 Bg3 Bf4 Ree1 Bc7 Nd6+ Kb6 Re4 Nbc6 Re5 Ne7 Rce1 f4 Rc1 Nc8 Rce1 Qd5 Rc1 Rb1 a1R Qd5e6 Ra2 Ra1 Rb2+ Ka6 Rbb5 Ra4 g1R Ra1 Ke2 Nhg6 Rg2 Ra4 Kf1 Ra2 Rbd5 Kb6 Rge2 Ka6 Nb4+ Kb6 Nde4 Kb7 Nd6+ Kb8 Rb5+
B1K2Q1B/1Q1Q1r1k/N2b1r2/2N5/pq2q3/rB1B1n2/1nPqR1bb/2B4B w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 h4 g5 hxg5 e4 Nc3 c4 d4 cxd3 Ba3 Bd6 f3 Bf8 fxe4 d2+ Kf2 Nc6 e5 Nb8 Rc1 dxc1B Ke1 Qc7 Qd2 Qb6 Qd1 Qd8 Kf2 h5 Kg3 d5 e4 a5 b6 f5 e6 d4 b5 a4 b7 d3 e5 d2 Kf4 h4 g4 h3 b6 h2 g6 Qh4 g7 Qh7 g5 Be7 g6 Bc5 e7 Ra6 Bd3 Ra7 Ne4 Bd7 Nh3 Bb5 Nhf2 Nc6 b8Q+ Nd8 b7 Bd6 Nc5 Nf6 g8B Nd7 g7 Bc6 Re1 h1Q Nfe4 Nb6 Bb3 Nc4 g8B Nb2 Re2 Qe1 Bgd5 Qg6 Qa8 Rh3 b8B Nf7 Qb7 Ng5 Na6 Nf3 Nec5 Qe6 Bc7 Kf7 e8Q+ Kg7 Qf8+ Kh7 Ba5+ Qe7 Bc3 Rg3 Qb5 Rc7 Qb7 Qe6 B5e4 Rf7 Bd4 Qc4 Bd5 Qb4 B5e4 Be7 e6 Bd6+ Be5 Rh3 e7 Qh1 e8B Bd5 Qg1 d1Q+ Qe3 Bd2 Bc6 Be1 Qd7 Qdd2 Ba8 Bf2 Qb7 Bg1 Qd7 Rg3 Qb7 Bh2 Qd7 Nd1 Bc1 Nb2 Qb7 Qhe1 Qd7 Nd4 Bh1 Bg2 Qb7 Rf3+ Kg5 Rh3 Bh8 Rf3 Bb5 f4 Qee7 Re3 Kg4 f3 Qed7 f2 B5c4 f1R Kg5 Rfe7 Kg4 Nf3 Kf5 Rg7 Bb5 Qeh4 Bd3 Qhe4+ Kf6 Ne5+ Ke6 Rgf7 Qde7 Nf3+ Kd7 Nh4 Kc8 Rf6 Qed7 Ref3 Bdc4 Rc3 Bd3 Nf3 Ba2 Ra3 Bd5 Qd4 Bb3 Q4b4
2BR1q2/r1rrq3/N1bk1Bpn/8/3P2Q1/1B1Q3B/n2B1Q1n/bNBb2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Nc6 b4 Be7 g6 Nd4 g7 Ba6 g5 Bf8 g6 Bc8 Ra6 Nf6 g8B Nc6 g7 Nb8 Rd6 Nh5 Rh6 Nf6 Rg6 fxg6 Kf2 Kd7 e4 a5 d6 c5 e5 h5 b6 h4 b5 f3 b7 c4 b6 h3 Ne2 c3 Nd4 a4 Nb3 h2 Bh3+ Ng4+ Kf1 a3 d4 c2 Qd3 Nc6 b8B f2 b7 Nb4 e6+ Kc6 e7 a2 d7 a1Q e8Q Nh6 Qe5 Na2 Bge6 Rh7 g8B Ra7 Qee3 Bb4 Nc5 Qe7 d8B Bc3 Bf4 Qb2 b8Q Qa3 Qe1 Ba1 Na6 Qf8 Bcd2 c1R Bf6 Qae7 Qbb3 Rf7 Qbd1 Rc2 B4g5 Kd6 Qg4 Rcc7 Qee2 Bb7 Bc8 Bc6 Qe1 Rh7 Bb3 Ba4 Kg2 f1N Qf2 Rd7 Bd5 Bd1 Bb3 Ng3 Rf1 h1B+ Kg1 Bc6 Bc1 Rg7 Bgd2 Rdc7 Re1 Nf1 Re5 Nh2 Re1 Qef7 Re8 Qe6 Rd8+ Rgd7 Qge2 Qee8 Qg4 Qee7
2R1N1nb/N5b1/2b1PRN1/qqn1r2K/5R1R/knRp4/1R2Q3/r1B1rQ2 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 gxf5 Nf6 d4 cxd4 Bh3 Ng8 Bg4 hxg4 Kf2 Ke7 Kg3 d5 b4 a5 h4 g5 c4 d3 e4 d2 h5 d4 f6+ Ke6 b6 a4 f7 d3 h6 a3 b5 a2 c5 Nf6 b7 Rh7 c6 Bd6 f8R Ra6 b6 Bc7 Nf3 Ng8 Rf1 Re7 h7 Bd7 Qe2 d1R h8R Re1 Rh4 Ra8 Rf4 Na6 b8R Nc5 b7 Be8 Kh2 g3+ Kh3 g2 Kg4 g1B Na3 Bd4 Nb5 Ra3 Rb1 a1N Rc8 Nab3 b8Q Ra1 Na7 Ba5 c7 Bc6 Rf2 Bac3 Kh5 g4 Rb2 g3 Qb4 Kd7 e6+ Kd6 Ne5 g2 Ng6 g1Q e5+ Kd5 Qa3 Kc4 Rf6 Qh1 R2f4 Qhd5 Qf1 Re8 Qa2 Kb4 e7 Qc4 Rc2 Qb5 Rb2 Rf8 e8N Rf7 Qb1 Re7 Qc2 Ka3 Qce2 Re6 Ra8 Re7 c8R Qda5 Rab8 Rd7 e6 Rd5+ R6f5 Bg7 Rb6 Rd4 Rf6 Re4 Rb7 Re3 Rbf7 Bh8 Rc4 Be5 Rc3 Re4 Rff4 Beg7 R7f6 Re5+
N1Q1bb1n/Q7/1P2BRrR/3brr2/R1q3R1/1qnR2NK/2kNp3/1R4q1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 Kg2 Kd6 h4 Ke5 d4+ Ke4 g7 e5 h5 a5 d6 c5 b6 g4 b7 a4 f6 c4 d5 c3 f7 f3+ Kg3 a3 h6 c2 d7 c1Q b4 a2 d6 f2 h7 Ra6 b5 Nf6 g8Q Qb6 d8R Nc6 b8N Qc4 d7 Ne7 Qb3 Ng6 Bh3 f1B Ne2 Bb7 Qa4 Kd3 Nd2 e4 Rb1 a1Q Rg1 Ra5 Na6 e3 Nc7 Nd5 Ra8 Nc3 d8R+ Bd5 Rg2 Qe6 b6 Rb5 Qa6 Kc2 Qa7 Qb3 Rd6 Qe4 Kh2 Qec4 Ng3 e2 Rg1 Bfg2 Rdd8 Bc6 Rd3 Bgd5 Rg2 Be8 Rgg1 Be7 f8R Bc5 Rf7 Bf8 Rf6 Ra5 Qe6 Rg8 Qf5 Nh8 Qc8 Rg5 Rg2 Re5 Rgg1 Nf7 h8R Rb5 Rhh6 Nh8 Qa3 Rc5 Ra4 Ra5 Na8 Rf5 Nge4 g3+ Kg2 Re5 Be6 Rb5 Kh3 g2 Ng3 Ra5 Rgf1 g1R R1f4 Rf5 Qe7 Rc5 Qa7 Rg2 Nh1 Rg6 Rg4 Rb5 Rbg1 Qe1 Ng3 Qf2 Rb1 Qg1 Bf7 Bdc6 Bg8 Rbe5 Be6 Bd5
3kn1QR/r1R2Q2/1R1b1N1r/2n5/B1b1Pp2/Rbn1K3/R4QqB/2rb2R1 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 f4 Nb8 fxg5 Bh6 Nh3 Bg7 Ng1 Bf8 g4 h6 g6 Rh7 Nd2 Rh8 Ne4 h5 g5 Bh6 Nf2 Bf8 Ng4 hxg4 Kd2 d5 b4 f5 h4 a5 e4 f4 c4 f3 h5 a4 h6 g3 g7 a3 h7 g2 b6 e6 c6 f2 g6 d4 c5 a2 b5 d3 b7 Na6 b8R Qa5+ Ke3 d2 b6 Nh6 g8Q Ke7 b7 Kd8 g7 Ke7 c7 Nb4 c6 Na6 Qe2 d1B Qf7+ Kd6 g8Q Ra7 Nh3 g1N Nf4 Nc5 Nh5 e5 Nf6 Bg4 c8R Be6 c7 Beb3 Ra8 Kc6 b8R Bd6 Bh3 f1B Qf2 Ne2 Rg1 Nc3 Qg4 Bfe2 Qgf4 Bec4 Rb4 Qb6 Bd7+ Kb7 Ba4 Ng8 Re8 Qb5 Re7 Kc6 c8Q+ Kb6 Rb1 a1R Rb2 Rb1 Bd2 Rc1 Qcg4 Kc6 Ra2 Kb6 Qgg5 Kc6 Rc7+ Kb6 Nh5 Nf6 Qgg8 Ne8 Nf6 Bbc2 Rbb2 B2b3 Ra3 Qd7 Rba2 Qg4 Be1 Qg2 Rac8 Be7 Rc6+ Kb7 R8c7+ Kb8 Ra6 Bd6 Rb6+ Rb7 Rd7 Kc8 Rc7+ Kd8 Q2h4 Qg6 Bg3 Ra7 Bh2 Qg7 Qhf2 Qg2 Qgf8 Rg8 h8R Rg6 Q8g7 Rh6 Qgg8 exf4+
Q1Q1Rn2/bnR3q1/1k4P1/rB2b1q1/Rp3nr1/7R/B2r1N1R/2RnBK2 w - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 Nh6 f5 Nd7 Nc3 Bg7 Nce2 Bf8 Nf4 gxf4 Bb2 Ng8 Bc1 Nb8 h3 Bd7 g5 Bb5 Bb2 Be2 Bc1 Bg4 hxg4 Ra6 Qf3 Ra4 Qd1 Ra8 a4 Kd7 d4 h5 a5 e5 d6 Kc6 f7 b5 a6 h4 g6 h3 g5 b3 d7 e4 g7 b2 d5+ Kb6 g6 b1R d6 c5 f6 h2 a7 b4 Bd2 e3 Ra5 e2 Kf2 e1B+ Ke2 c4 Nh3 f3+ Ke3 c3 Ba6 f2 Ke2 f1N Bd3 c2 Ra4 Rb2 Qc1 Ne3 Nf2 Nc6 Bb5 Nd1 Kf1 Na5 Bc3 Be7 f8R Nb7 f7 Rh4 Re8 Rg4 f8R Nf6 g8B Nh7 Ba2 Bf6 Rh8 Nf8 Rh3 Be5 Re7 Qc7 d8R Bd2 d7 Be3 Rg1 h1Q Be1 Qd5 Rde8 Bc5 d8R Qcd7 Qb1 c1N Qf5 Ne2 Rf7 Qc7 Qc8 Rd2 Rgh1 Bcd4 R1h2 Nf4 Rdd7 Qc3 Rc7 Qd8 Rc4 Qg5 Rfc7 Be3 Qf5 Qd4 Rc1 Qd7 Qc2 Qg7 Qc4 Rad8 a8Q R8d5 Ba6 Ra5 Bb5 B3d4 Qe6+ Bd6 Qec8 B4e5 Rd7 Bb8 Rdc7 Ba7
1QR1nrr1/3nQ2p/K1r1QRb1/nB2qQ2/r1q4Q/3PBb2/4Q2N/1k2B3 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 h4 Qf6 Na3 Qc3 Nc4 Qb4 Ne5 Nh6 Nef3 gxf3 g4 Be7 g5 Qd6 g6 Bg5 hxg5 Ng8 Rh5 Qd7 Rh1 Qd8 b4 Kd7 e4 Kd6 g7 Ke5 g6 Kd4 d6 c5 d7 f5 e5 a5 e6 a4 b6 c4 e7 c3 e8Q f2+ Ke2 a3 b7 a2 b5 c2 b6 Qf6 d8Q+ Nd7 b8B Ra4 Rh6 Bb7 Nf3+ Kc4 Qde7 Kb3 Kd3 Qe5 Qe1 Ngf6 Nh2 Bf3 b7 Rg8 Be2 f1B Qh4 B1g2 Bc7 Bh5 Ba5 f3 Bb4 f2 b8Q f1R Qbc8 Rh8 g8Q+ Bd5 g7 f4 Qb8 f3 Qgf8 f2 g8Q Bf3 Qge6 Rg8 Qeh5 Ne8 Qhf5 Bh5 Rf6 Bf7 Qfh6 Bg6 Qa6 Bf3 Rb1+ Qb2 Q6h5 a1N Qae6+ Bd5 Q5g4 Ka2 Qg2 Nb3 Qgg4 Bb7 Kc4 Bg2 Kb5 Bf3 Ba5 Qc3 Ka6 Qe5 Rb2+ Ka1 Ra2+ Kb1 Bb5 Rd4 Bc3 Na5 d3 Ra4 B1d2 c1Q Rc2 Rh1 Qgh5 f1R Be3 Rhg1 Bb4 Rg2 Rc6 Rc2 Rc8 Rc5 Be1 Qc4 Qh5g4 Rc6+ Bb6 Qa2 Qfg5 Bd1 Rf2 Rc7 Be3 Qc4 Rf8 Rf6 Q5f5 Rf7 Qg2 Bf3 Qe2 Rc6+ Ka7 Rfg7 Rf7 Rf8 Rf6 Rc5 Ka6 Rgg8 Bg5 Rc7 Be3 Rc6+
1Q4b1/pR1r1n1R/BRn1Q1K1/q5b1/6q1/R1n1bB1n/2k1B2P/4RNrR w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bd6 b3 Bc8 Bb2 Bf8 g4 Qd6 Bd4 Qe7 Be3 Qd8 Nc3 h6 Bf4 gxf4 Ne4 h5 g5 Nh6 Nf2 Ng8 Ng4 hxg4 Kf2 Kd7 d4 c5 e4 f5 g6 g3+ Kf3 c4 e6+ Kd6 e5+ Ke7 b6 c3 d6+ Ke8 b4 g2 d5 c2 b5 c1B g7 Be3 e7 Kd7 e8R Bc1 b7 Be3 b6 Rh6 Ra3 Qc7 Be2 Nc6 b8Q Be7 b7 Qa5 Qb3 Rh7 Qa2 Nh6 g8B Bh4 Bf7 Rg7 Bh5 Bg5 Rh8 Nf7 Rh7 Rg8 Ba6 Rd8 Ne2 Rg8 Ng3 g1N+ Kg2 Nh3 Nf1 f3+ Kg3 f2 Bf3 f4+ Kg4 Rg7 Kf5 Rg8 Bfe2 Rd8 Kg6 f3 Ng3 f1Q e6+ Ke8 e7 Kd7 Qb3 Qg2 Nf1 f2 Qc4 Qg1 Qe4 Qg4 Qe6+ Ke8 Qc7 Rd7 b8R Ng1 Bf3 Nh3 Rb6 Bb7 Qb8+ Bc8 Ng3 f1N Bae2 Nd2 Nf1 Ne4 Bc4 Rc7 Rb7 Nfe5+ Kg7 Bh4+ Qg6+ Kd7 Ba6 Qf5 Qh6 Nb4 e8B+ Kd8+ d7 Ke7 d8R Nc3 Bc6 Be6 Bcb5 Nbc6 Qc8 Qh5 Qf4 Qf5 Kh6+ Kf6 Bbe2 Rg7 Qd7 Rg1 Qc8 Bg8 d6 Nb8 d7 Bg5+ Kh5 Nf7 Qfc4 Ke5 Qe6+ Kd4 Qc7 Qfb5 Kg6 Qc4 Rb6 Nc6 Rdb8 Qcb4 R8b7 Re8 Qb8 Re7 Bd5 Qc4 d8R Qca4 Rd6 Rd7 Bdf3+ Nd5 Ra2 Kc3 Ra1 Kc2 Ra3 Nc3 Rd1 Qh4 Re1 Qg4
n4n2/1R1QnPb1/R4nqq/1N4N1/N2n4/RN1N1B2/5qbp/rQ2KN1k w - - 0 1 legal: proof: f4 f5 a4 b5 axb5 d5 e4 fxe4 c4 g5 cxd5 Bh6 b3 Qd7 f5 Qd6 Bb2 Qd8 Be5 Bf8 g4 a5 h4 Ba6 h5 Bc8 Bf4 gxf4 g5 Ra7 Bh3 Ra6 Bf1 Rg6 hxg6 Qd6 Rh3 Qd7 Rh1 Qd8 d4 Kd7 b4 Kd6 g7 h5 b6 e5 b5 c5 b7 h4 g6 a4 f6 e3 b6 f3 f7 f2+ Ke2 c4 Rh3 a3 Ra2 e4 Bg2 f1N Rb2 c3 Nd2 a2 Ngf3 a1N Nb3 c2 Nfd2 c1Q Ke1 e2 Bf3 Ne3 Nf1 Nd7 b8N Ng4 b7 Qb6 Nc6 Ne7 g8R Bg7 b8N Qh6 Na6 Nf8 Nab4 Nf6 Na7 Bb7 Qb1 Qa6 Rg3 h3 Nd3 h2 Ra2 Qc6 Ra6 Ba8 Na5 Nb3 Nb5+ Kd7 d6 Ke6 d7 Kf5 d8Q Nc5 d5 Ncd7 d6 Nb6 d7 Qd6 Ne5 Kf4 Nb3 Bc6 Qe8 Na8 d8N Qe6 Nb7 Qg4 Kf2 e1N N7c5 Nc2 Qd7 Nd4 Ke1 e3 Na4 e2 Rh3 N8h7 Rb8 Nf8 Rb7 Rg8 Bh1 Bg2 Rc3 Qgh5 Nd3+ Kf3 Na1 N8h7 Ra3 Rc8 Nb3 Nf8 Qd8 Rc2 Qe8 Ra2 Qd7 Bh8 g7 Ra1 g8N Q5g6 Ra2 Bg7 Ra3 Ne8 Ne3 Kg3 Nf6 Kf3 Ne4 Nf6 Ng5+ Kg3 Nb6 Bf1 Bf3 Bh3 Na4 Bf1 Bh5 Bh3 Nf1+ Kg2 Kd2 Kh1 Bf3+ Bg2 Ra2 Ndf5 Ra3 e1Q+ Kc2 Qeh4 Kd1 Nd4 Kd2 Qf2+ Kd1 Qg1 Ke1 Qf2+
Br3kb1/q4b2/1B1p1K1R/B3Bb2/bBQ2P1R/3R2b1/Bn2b2Q/b3N1r1 w - - 0 1 illegal: No proof kernel
2nqN1k1/NQb2R2/Q3N3/1rb1Q3/NqB3PN/2Kbrp1N/2R5/1qr3b1 w - - 0 1 illegal: No possible last move, all moves rejected
1Bq2n2/B1PnQn1N/n2B3r/2Bq2BQ/3npb2/1nN2BrQ/8/k2K3R w - - 0 1 legal: proof: f4 c5 e4 f5 exf5 h5 a4 b5 axb5 Qb6 g4 Qd8 b4 Nf6 d4 cxd4 g5 Nd5 f6 Kf7 Ra3 Ke6 f5+ Kd6 Rg3 Ne3 Rg2 Ng4 Rg3 Bb7 Rg2 Nh6 Rg4 Bd5 g6 Bf7 gxf7 hxg4 Be3 Ng8 Bg5 Nc6 Bc1 Nb8 c4 Ke5 h4 d5 b6 a5 h5 g5 b5 g3 c5 g2 h6 a4 b7 a3 b6 a2 h7 a1N c6 g4 c7 d3 Bb2+ d4 Rh4 d2+ Ke2 g3 Na3 Qc8 Rh3 Nd7 b8Q Nb3 b7 Nh6 Bc1 d3+ Kf3 Kd4 Rh2 Kc3 Nh3 e5 Rh1 Bd6 f8B Nf7 Be2 g1N+ Ke3 e4 Ng5 g2 Bf3 Bh2 Bc5 Nf8 Ba7 Ne2 Qf1 d1Q Nb1+ Kc2 Nc3 g1N Qh3 d2 Kf2 Rg8 h8Q Ned4 Q8h5 Bf4 Nh7 Rg4 Nb1 Rg3 Nc3 Qe6 Qd8 Qc8 Qe7 Rb8 Nd5 Kb1 Nc3+ Ka1 Bg2 Nh8 f7 Ngf3 f6 Ne5 Bf3 Ra8 b8B Ned7 Bb6 Ra6 B6a7 Nfg6 f8B Nf7 Ba3 Re6 Bh6 Ngf8 B3c5 Nc2 Qd6 Nb4 Qe7 Na6 Bd6 Qb1 Ke2 d1N Ke1 Qd3 Bg5 Ne3 Bdc5 Nf5 Bd6 Bd2+ Kd1 Qd5 Bdc5 Nfd4 Bd6 Nd8 f7 Bf4 Bdc5 Ng6 f8B Nf7 Qe8 Rf6 Bfd6 Ngf8 Qe7 Rh6
2B1n1b1/4N1Bk/1K5B/1Q3p1p/b1B3nr/1P1BRQ1r/1q4q1/R1bRBq2 w - - 0 1 legal: proof: c4 a5 f4 e5 h4 exf4 b3 g5 hxg5 d5 cxd5 a4 Na3 b5 Nc4 a3 Nb2 axb2 a4 Qf6 axb5 Qd8 Kf2 b1B d4 f5 g4 Kf7 e4 Kg7 d6 c5 d7 h5 g6 c4 b6 c3 b7 c2 g5 f3 Ke3 f2 e5 Rh6 e6 Bd6 e7 Be5 e8R Ra3 d5 Ra2 d6 Ra6 Ne2 Qc7 d8B Qc6 d7 Qe6 Nf4 Ra2 Ba5 Rh8 d8B Nd7 b8Q Qe7 Qf3 Ndf6 Qb5 Be6 Bd3 f1Q Nd5 Bb2 Be1 Qb7 Ne7 Nh6 Bcd2 Bc1 Kd4 Rf8 Kc5 Ra4 Rg1 Qa8 Kb6 Rg8 Rh1 Kh8 g7+ Kh7 Bc7 Rd4 Be5 Nhg4 Rg1 Rf4 g6+ Kh6 Qb4 Nh2 Be4 Qa2 Bg3 Qg2 Rd8 Qb2 Rd3 Ne8 Bb7 Bd7 Bc8 Ba4 Be3 Bd2 Qb5 c1Q B5d4 Qc4 Rd1 Bc1 Be1 Qg5 Bf6 Rh4 Bf4 Rh3 Re3 Qf1 Bfc3 Bd3 Bce5 Nf6 B5c3 Rd8 g8B Rd4 g7 Ne8 Bf7 Rb4 g8B Bc4 Bfe6 Bd5 Bgf7 Bc4 Bg7+ Kh7 Bd5 Qgg2 Be4 Bd5 Bd3 Be6 Bg5 Rbh4 B5h6 Bd5 Bfe6 Ng4 Bf7 Bc6 Bfc4 Bd5 Ra2 Bf7 Ra1 Bg8
4B3/1n1bBB2/r1P1B1q1/kqQB1pr1/b3nNR1/4Bp2/N3N1K1/2b3Qn w - - 0 1 illegal: No possible last move
1QBR1n2/Qp1bQ1K1/1N2r2n/qk1p1Pr1/5q1Q/2B4R/rb3Q1Q/q3R3 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 g4 h5 g5 g6 Nd2 Rh7 Ndf3 Rh8 Ne5 Nf6 fxg6 Ng8 Ng4 hxg4 f5 Ra4 Kf2 Ra7 Ke1 Ra8 Ke2 d5 Kd3 Kd7 Kd4 Kc6 Ke5 b3 c4 g3 h4 b2 a4 b1Q a5 e6 g7 g2 h5 Be7 h6 Bd7 a6 Qb2+ Qd4 Qc8 h7 Bd8 a7 Be7 g6 Qd2 Qf2 Qd3 Nf3 g1Q Nd2 Nh6 g8Q Bf8 Kf6 e5 g7 e4 Rh3 e3 Bb2 e2 Qe6+ Bd6 g8Q e1R Qg5 Ng4+ Kg7 Ne3 Qe7 Ng2 Bc3 Rd8 h8Q Re2 Qgh4 Qh1 Re1 Qe3 Q8h7 Kc7 c6 Kb6 c5+ Kb5 c7 Qf4 c6 Ba3 Nc4 Bb2 Nb6 Ne3 Qh8 Rf8 Q8h7 Qd8 c8Q Ng4 c7 Nh6 Qh8 Nc6 Qb8 Ne5 c8R Ng6 Qh7 Qdc7 Rd8 Re8 Qh8 Nf8 Qh7 Qfc4 Qh8 Re6 Be2 Qc5 Bh5 Q5b4 Bf7 Qa5 Qbh2 Qf4 Bg8 Rc8 a8Q Rc4 Qa7 Ra4 Bf7 Ra2 Qg8 Re3 Be6 Rg3+ Kf6 Rg5 Qh8 Bc6 Bc8 Bd7 Qg8 Ng6 Kg7 Qg1 Qd6 Re6 Qgf8 Qh1 Qdb8 Qf1 Qe7 Qg1 Re5 Qa1 Re1 Nf8+
n2NB3/2q1k2B/r2pB1b1/1BB5/rb3b2/4Nb2/2pnbNP1/B1QQR2K w - - 0 1 legal: proof: d4 a5 h4 b5 b4 axb4 c4 e5 dxe5 g5 hxg5 b3 Be3 b4 Bf4 Qf6 Bc1 Qd8 a4 f5 e4 Bh6 e6 Qe7 e5 Qc5 Rh4 Qb5 cxb5 Bf8 Rh1 Ke7 Ra2 Kd8 Re2 Ke8 Re4 fxe4 f4 h5 Kf2 c5 e7 c4 a5 h4 g6 h3 a6 b2 a7 h2 b6 b3 f5 c3 b7 Rh7 g7 Rh8 f6 Rh6 Nh3 Na6 b8N Nc7 Bd3 Bb7 Nd2 b1B Nc4 b2 Re1 h1Q Nc6 Qh2 Nd8 e3+ Kf1 Rh4 Bh7 Bg6 Nf2 b1B Bb2 Bf3 Ba1 c2 Qc1 Ba2 Qd1 Qg3 Kg1 e2 Ne3 Ra4 Kh1 Bc4 Qc1 Rc8 Qd1 Na8 Qc1 Rc6 Qd1 Nc7 a8Q Rca6 Qc1 Bb5 Qd5 Na8 Qdd1 Bbd3 Nb7 Kf7 e8B+ Ke6 f7 Bd6 f8B Nf6 Be7 Ne4 Bf8 Qf4 g8B+ Qf7 Be7 Nd2 Bf8 Bb4 Bc5 d6 Bb5 Ke7 e6 Bc4 Nd8 Qg7 Rf1 e1B Rg1 Bce2 Rf1 Nc4 Bf7 Bec3 Re1 Nd2 Bfg8 Bd4 Bf7 Be5 Bfg8 Kf6 e7 Qf7 e8B Qc7 Bgc4 Ke7 Be6 Bf4
kB4b1/1b6/1r1nn1r1/3pBq2/2BP4/1p2r1QB/N1rN2nQ/R2N1BBK w - - 0 1 legal: proof: e4 b5 a4 g5 f4 f5 exf5 Nc6 f6 Nb8 axb5 c5 b4 cxb4 h4 Bh6 g4 Na6 f5 Nb8 Ra3 Bg7 Rf3 Nh6 Rf4 gxf4 g5 Ng8 g6 Bf8 Qh5 Bh6 Qd1 Bg5 hxg5 Qc7 Qh5 Qa5 Qd1 Qd8 Kf2 h5 Kg2 e5 d4 a5 c4 f3+ Kh2 a4 g7 b3 c5 a3 b6 a2 b7 a1R g6 e4 c6 e3 c7 f2 Bd3 f1B Qc2 e2 Nc3 e1N Nd1 h4 Be3 h3 Ne2 R1a2 Nc1 Nc6 b8B Bb7 c8B Qa5 f7+ Kd8 f8B Ra6 f6 Rh6 f7 Nge7 g8Q Nf5 g7 Ng2 Bg1 Nd6 Qe2 Rc2 Na2 Rg6 Qf2 Ne8 Bfd6 Rb6 f8N Qf5 Be5 Nd6 Qh7 Be2 g8B Bf1 Ba6 Bc4 Qg3 Be6 Bf1 Bf7 Ba7 Kc7 Qhh4 Nd8 Nh7 Kc6 Nf6 Ne6 Ne4 Kc7 Nd2 Kc6 Bh7 Bg8 Bc4 Ne4 Bab8 d5 Bf1 Nd6 Qhf4 Ba6 Bd7+ Kb7 Bdb5 Ka8 Bbc4 Rf6 Bg6 Bb7 Bh5 Rg6 Bg4 Nf7 Bf2 Nd6 Rg1 Rc3 Kh1 h2 Bh3 Re3 Bfe2 Rh6 Rf1 Rg6 Bg1 Nc8 Re1 Nd6 Bf1 Ne4 Qff2 Nh4 Nb2 Nf4 Nf3 Nd6 Ra1 Ne6 Nd1 Rc3 Bfd3 Rc2 Nd2 Nf3 Kg2 h1R Bh2 Re1 Bf1 Nh4+ Kh1 Re2 Bg1 Re3 Qfh2 Ng2
3r2r1/N3Q1Np/P1QRb3/KN2rN2/1n1B2Q1/p3bb2/1N1nr1Nk/1qR5 w - - 0 1 legal: proof: b4 a5 h4 f5 a4 d5 c4 b5 cxd5 g5 e4 gxh4 exf5 Bb7 Bc4 Ba6 Bb3 Kf7 bxa5 Bc8 a6 Ke8 a5 Nd7 Bc2 Nb8 Ba4 bxa4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc3+ Kf6 Kb4 e5+ d6 e4 f4 c6 d5 h3 g5+ Kf7 f6 Kg6 f5+ Kf7 a7 a3 g6+ Ke8 g7 Kf7 a6 e3 Nd2 e2 Ngf3 e1R Nd4 h2 Nc4 Re2 Nb5 Ra2 Qg4 Rc2 Bb2 Bb7 Rhd1 h1B Rac1 Rh2 Bd4 Bc8 Nb2 c5+ Ka4 c4 d7 c3 d6 Qc7 d8Q c2 d7 Qb7 Ka5 Bf3 Qc7 Re2 d8N+ Ke8 Rd3 Be6 Nc6 Bc5 Qe5 Kd7 f7 Nf6 g8N Ne4 f6 Nd2 Nge7 Rg8 Nf5 Bd6 Qc5 Bf4 f8Q Be3 f7 Bb3 Qb6 Ke6 Qe7+ Kd5 f8N Bc4 Re1 c1R Ng6 Bb3 Ngh4 Rc5 Ng2 Ba2 Qf8 Ke6 Rc1 Re5 Qe7+ Kd5 Qg6 Ke4 Qbc7 Be6 Qc8 Nd7 Qce8 Rd8 a8N Nb6 Na7 Nd5 Nac7 Nb4 Qc6+ Nd5 Ne8 Qb8 Ngh4 Kf4 Neg7 Nb4 Qg1 Qb7 Ng2+ Kg4 Bc5 Kh3 Rd6 Qb8 Qd1 Kh2 Qa4 Nd5 Qg4 Nb4 Bd4 Qb7 Qb6 Qe4 Qc6 Qb1
7r/R2p2P1/nBkb2RB/2bRr1Nb/nR2qp1r/6K1/b7/BR1Q1RQ1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 c5 a4 c4 axb5 c3 Bh3 g6 dxc3 Bd6 c4 Bf8 c5 Qe7 Nc3 Qd8 Ne4 h6 g5 h5 Bf5 gxf5 Nf2 Bh6 Ng4 hxg4 Nh3 Bg7 Ng1 Bf8 Kf2 a5 c4 f4 e4 f5 b4 a4 h4 f3 h5 a3 c6 a2 g6 Ne7 b6 Nd5 c5 Bd6 b7 Bc7 b5 Nf6 h6 Ra7 h7 Qe7 e6 Qd6 e7 Ra8 b6 Rf8 h8B Qd5 e5 Qe4 Kg3 f2 Rb1 f1B Bh6 a1R Nf3 R1a7 Ng5 Be2 Rf1 Bd8 c7 Ra1 c6 Na6 b8R Bb7 c8Q Bf3 c7 Bd5 b7 Ra5 B8g7 Ra7 Ra8 Rh8 b8B Rb7 Ba7 Rb4 Bb6 Ba2 Ra7 Nd5 Qb8 Rd4 c8R Nc3 Rc4 Na4 Rcb4 Rb5 Qd6 Bc7 Qc5 Bd6 Bf6 Rc4 Qg1 Rd4 g7 Rc5 Kh4 g3+ Kh3 g2 Kg3 Nc7 Nh3 Kf7 e8R Bh5 Re6 Na6 Ng5+ Kg8 Qf2 g1B Qg2 Be3 Qg1 Rb5 Bfd8 Rc4 Rg6 Bec5 Bf6 Rd4 Kh3 Rc4 e6 Ra5 e7 Rd4 Nf3 Kf7 e8R Rc4 Rc8 Ke6 Rc6 Rd4 Ng5+ Kd5 Rc8 Rb5 Re8 Kc6 Re5 Qd3+ Kg2 Rh4 Rd5 Qe3 Ba1 Ra5 Rbf4 Qe4+ Kg3 Ba3 Rd3 Re5 Rd5 Bc5 Rg4 Qh1 Rc4 Qe4 Rcb4 f4+
1r2R1N1/qpB1Nr1R/1pNP3r/N1Q1nQ2/1nrQ1N2/3n4/1N1b4/kb4K1 w - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 f4 b5 f3 b6 axb6 exf3 Nd7 f4 Nb8 f5 Ra7 Bc4 Ra6 Bf1 Ra8 g4 g5 f4 h5 Bh3 Ra6 fxg5 Nd7 g6 Nb8 g5 Ra8 Bg4 hxg4 Kf2 Kd7 h4 Kd6 a4 Ke5 d4+ Ke4 d6 e5 f6 c5 g7 c4 h5 c3 h6 c2 a5 Bf5 d5 Bd7 g6 Rh7 f7 Bc8 d7 Qe8 d8N Qe6 a6 Qe7 a7 Bd7 Nc6 Qa3 Na5 Nf6 g8N Na6 g7 Bf5 Nh3 g3+ Kg1 g2 Nd2+ Kd3 Ndc4+ Kc3 Nb2 e4 Bf4 c1R Bc7 e3 d6 e2 Ne7 e1N g8N Nb4 Nec6 Nd7 Nf4 Rb8 a8Q Bb1 Qd4+ Kc2 Qa6 Ne5 Qb5 Be7 f8Q Rf7 h7 Bg5 h8N N1d3+ Nd1 Qa4 Rh7 Qa3 Nhg6 Bh6 Kh2 g1R Ng6e7 Rg6 Nb2 Bg5 Qc8 Rh6+ Kg2 Qa4 Qf5 Qa3 Ne2 Bd2 Nf4 Re1 Qbd5 Re4 Kg1 Qa2 Q4c5+ Rc4 Qdd4 Qa4 Nb3 Qa7 Nba5 Ba2 Re1 Bb1 Nd1 Ba2 Re2 Kb1 Nb2 Ka1 Nc8 Ng4 Re8 Nge5 Nc8e7 Bb1
2nnQbq1/R1PNbQ2/3krr1N/b2N4/b2B4/1qN5/1QNpp1R1/3K1N2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 Kd7 c4 e5 b6 g5 b7 d3 h6 a4 b5 e4 h7 d4 c5 g4 b6 g3 f6 e3 f7 e2 c6+ Ke7 c7 a3 f5 a2 h5 g2 h6 Na6 b8Q Qd7 b7 Qe8 f6+ Kd6 Qd2 Kd7 Nf3 g1Q Bb2 Bb4 f8Q Kc6 f7 Qee3 Rh2 Qg4 Rg2 Ne7 Nc3 Qge6 Nh2 Bd7 Qbe8 Ba5 b8N+ Kd6 Nc6 Nc5 Nb4 Ra6 Nc2 Ba4 Qc1 Rg8 h8N Nb7 h7 Nd8 Ng6 Qg5 h8N Qb3 Qg7 Nc8 Ne7 Rf8 Nd5 Rb6 Qh7 Qg8 Kd2 e1B+ Kd1 d2 Be2 d3 Nf1 Bh4 Qb1 Qg6 Qg8 Be7 Qg7 Rg8 f8N Qf7 Qh7 Rg6 Nd7 Qg8 Qg7 Rf6 Nf7+ Ke6 Nh6 Kd6 Qc1 Re6 Nb1 Rf6 Bd4 Bf8 Nbc3 Rc6 Rb1 a1B Qgf7 Bb2 Ra1 Ba3 Qb2 B5b4 Ne7 Rc5 Bf2 Re5 Ncd5 Ree6 Bg1 Bb5 Nc3 Bc6 Nc5 Ke5 Ned5 Bd7 Na6 Bbe7 Bb6 Kd6 Nc5 Bb4 Ra7 Ba4 Nd7 Ba5 Bd4 dxe2+
rRNN2b1/pQQ3N1/3P3Q/q6r/Q3bp1r/1r4n1/QK5B/3BqknQ w - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 b5 f4 f5 a4 Bd6 b4 Be7 g5 Bf6 gxf6 exf4 axb5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 h4 Kd7 e4 Kd6 d4 c5 Kd2 g5 Kc2 f3 b6 f2 b7 g3 b5 g4 b6 g2 h5 c4 f7 c3 f8Q+ Ne7 e5+ Kd7 d6 Ke6 d5+ Kd7 h6 g3 h7 Rg8 h8Q Rg4 Qe2 Qc7 Nd2 Nbc6 b8Q Bb7 Nc4 Rh4 Nh3 g1R Ng5 g2 Qfh6 Nd4+ Kb1 c2+ Kb2 Rh5 Ne6 Nf3 Bf4 c1R Bh2 f4 Ng7 Rc3 Qc2 Rd3 Be2 f1B Bd1 Nf5 Qb3 Qd8 Qa2 Ng3 Q8h7 Bc6 b7 Qa5 Qbh8 Be2 b8Q Rf1 Qb5 g1Q Qhb8 Rf2 Qhh8 Qge1 Q5b7+ Qc7 Rf1 Ng1 Q8h7 Rg2 Rf3 Ra3 Rb3 Rh4 Qbh8 Bg4+ Qc2 Be6 Rb6 Bg8 e6+ Kd8 e7+ Kd7 Q8h7 Re2 Rb4 Re5 Qce4 Re3 Qh1 Rb3+ Ka1 Rd8 Qhc2 Rc3 Qca4 Be6 Qa8 Rg5 Kb2 Re5 Qb8 Reh5 Qbb5 Kc8 Nb6+ Kb7 d7 Bg8 e8N Ra8 Ne6 Qd8 d6 Be4 N8g7 Rb3+ Ka1 Qg5 d8Q Qc5 Nc8+ Qb6 Qba5 Qb5 Qe7+ Kc6 Nd8+ Kd5 Qa6 Qa5 Qc7 Ke5 Rb8 Kd5 Q4a3 Kd4 Qab7 Kd3 Qa4 Ke3 Qb1 Kf2 Ka2 Rd3+ Kb2 Kf1 Qba2 Rb3+
KQQ3rN/2N1R3/qp5R/QP6/nbb2bp1/1kB3QQ/1N5b/1rQ1q2b w - - 0 1 illegal: No possible last move
B2B4/Q2n1RbR/Pb3n1Q/1RN1kbqq/b7/r3p3/B1R3p1/RK1R3n w - - 0 1 legal: proof: c4 g5 d4 a5 f4 d5 fxg5 Kd7 cxd5 Nf6 b4 axb4 e4 Ng8 d6 Kc6 d7 Ra4 Nd2 Ra3 Nb1 Ra8 g4 Kd6 g6 Ke6 d5+ Kf6 d6 Ra5 Nc3 Rd5 exd5 b5 Ne4+ Kg7 g5 h6 Nf2 h5 Ng4 hxg4 Kd2 e5 Kc2 f5 h4 c5 a4 e4 h5 f4 a5 c4 a6 f3 Bg2 b3+ Kb1 f2 Qd4+ Qf6 d8R f1Q d7 b4 d6 g3 Nh3 b2 Nf4 c3 Qa7 Qd1 Nd3 Qf5 Bf3 g2 Nc5 Nf6 Rh4 Bb7 Rc8 Bc6 d8R+ Nbd7 Rh3 Ba4 h6+ Kg8 g7 Kf7 g8R Bg7 h7 c2+ Ka2 b1N Rgf8+ Kg6 Rf7 b3+ Kb2 Rf8 h8Q Nc3 Rh7 Ne2 Rb8 Qdd5 Rb5 Ng3 Rc8 Nh1 Be3 c1B+ Kb1 b2 Bd2 Qa8 Ba5 Be3 Bd8 Qad5 Rc7 Qf4 Rc6 Kf5 g6 Ke5 Rc8 Bh6 g7 Qg5 g8B Bd4 Qg7 e3 Qg6 Bg7 Qh6 Re8 Ne4 Bb6 Rc2 Qh5 Nc5 Re6 Nb3 Qc5 Ba8 Qd5 Nc5 Re8 Be7 Rc8 Bd8 Qg5 Ne4 Rc3 Nc5 Nb8 d7 Ra3 Be7 Qf3 d8R Qfh5 Rd1 Nbd7 Bd8 Rc3 Ka2 b1B+ Kb2 Ba2 Kc1 Be6 Kb1 Bh3 Rf8 Ra3 Ba2 Be6 Rf7 Bf5
2B3nB/Bnn1Nk1p/2R1r3/Q2n1bQ1/pBq1n1QK/P2q4/3B3B/2N4n w - - 0 1 legal: proof: e4 d5 exd5 b5 g4 f5 c4 bxc4 b4 Nh6 Na3 Ng8 Rb1 Be6 Rb3 Bd7 Re3 Bc8 Re4 fxe4 f4 g5 h4 a5 f5 Bh6 Bh3 Ra6 Bf1 Re6 f6 Re5 Nb5 Rf5 gxf5 g4 Na3 Bg5 hxg5 Qd7 Qe2 Qd6 Qd1 Qd8 Kf2 c5 Kg3 e5 d4 a4 f7+ Ke7 f8B+ Ke8 g6 e3 b5 c3 d6 e2 d5 e1N b6 e4 g7 c2 d7+ Kf7 d6 e3 f6 c4 b7 c3 Ne2 Ng2 Nb5 Ke6 a3 Na6 b8B Kf7 Rh6 Nc7 Na7 Nf4 Nc6 Nfd5 Kh4 g3 Bh3 g2 Bd2 g1N Ba7 c1N Ne7 Na2 Nc1 c2 Qg4 e2 Qg5 e1N Bg4 Qe8 d8Q Nd3 d7 Nh3 Rg6 Nhf2 Rh6 Ne6 Qa5 Ndc5 d8B Nh1 Bc7 Nb7 Bh2 Nec7 Rg6 Bf5 Bh3 Bd3 Bc8 Qb5 Rh6 Nac3 Rg6 Nh6 Qg4 Ne4 g8Q+ Ke8 Qg7 Ng8 Qh6 Qc4 Bg7 Kf7 Qhg5 Qa6 Nb3 c1Q Rh6 Qcc4 Nc1 Nec5 Rg6 Bf5 Rh6 Ke8 Rg6 Ne4 f7+ Kd8 f8B Ke8 Bgd4 Kf7 Rc6 Qd3 Bf6 Qac4 Bfc3 Nh6 Bfg7 Re8 Bb4 Ng8 Bb2 Qdc2 Bh8 Q2d3 Ng6 Re5 Ne7 Re6
q3K1kb/1N3NNN/BbbrR3/1r4NP/6q1/Q2Np1n1/1BQp1p2/5Bq1 w - - 0 1 illegal: No possible last move
2B1NQQ1/Qqb1Np2/3q1P2/1r6/3b1kp1/Bb2pb2/K4B1R/B1BnrB2 w - - 0 1 legal: proof: e4 c5 g4 b5 b4 d5 exd5 cxb4 a4 Qc7 axb5 Qd8 h4 Bb7 h5 Kd7 Ra6 Ke8 Rh6 Nd7 Rg6 Ndf6 h6 Nh5 gxh5 hxg6 Bc4 Ba6 Bf1 Bc8 c4 Kd7 f4 Kd6 d4 e5 Kd2 a5 Kc2 g5 Kb3 a4+ Ka2 a3 c5+ Ke7 b6 Kf6 b7 Kf5 b8B g4 d6 g5 c6 e4 h7 e3 d7 g3 d5 g2 h6 g4 c7 Qe7 d8Q Bg7 d6 Nf6 d7 Ne4 Qg8 Nf2 d8B Bf8 Qd7+ Ke4 f5 Bb7 c8B Qd6 Be7 Nd1 Nd2+ Kf4 Rh2 Ra5 Ne4 Rb5 Nf3 g1Q Nd4 Qh1 Nf6 Bf3 Qa7 Bg7 Ne8 Be5 Nc6 b3+ Kb1 b2 Ka2 Qg2 Bh4 Bd4 Ne7 Bb6 Bf2 b1B+ Ka1 Bd3 Ka2 Bc2 Bc7 Ba5 Bb6 Qh1 Bc5 Bc7 Qf8 Be2 Bb4 Qb7 Bc5 Bf3 Bb4 Rg8 h8B Ba4 Bd4 Rh8 h7 Bc2 f6 Bb3+ Ka1 a2 Bba3 Rg8 h8Q Rg6 Qhg8 Rh6 Rg2 Rh1 Rh2 Rg1 Bb4 Nc3 Kb2 a1B+ Ka3 Nd1 Bbc5 Bc2 Ka2 Rh1 B5a3 Ba4 Bb6 Bd4 Ba5 Rg1 Bc3 Bc2 Ba1 Ba4 Bg2 Re1 Bf1 Bb3+
1B3K2/2Bp4/1NRP1b1p/n3Q1qb/1qq4B/1NB1nr1p/Q3N3/2B1qB1k w - - 0 1 legal: proof: b4 b5 c4 a5 a4 g5 h4 gxh4 e4 f5 exf5 Nf6 c5 Ba6 c6 Bc8 Ra3 Ra7 Rah3 Rb7 cxb7 Ng8 Rb3 Nc6 axb5 Nd4 b6 Nc6 b5 Nb8 Rb4 axb4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 h3 d4 b3 g5+ Kf7 Ke5 b2 f4 c4 d5 c3 g6+ Kg7 f6+ Kh6 f7 e6 g7 c2 f5+ Qg5 Ne2 Kh5 Qd2 Qg2 f6 Ba3 f8B Kh4 f7 h6 Be7+ Kg4 f8B Kf3 Bh4 Ne7 Kf6 e5 Kf7 e4 g8N e3 Nf6 Nbc6 b8B Bb7 Bg7 Nf5 Bc7 Be7 d6 Rg8 Nd5 Na5 Bc3 Bf6 Qe1 Rg7+ Kf8 Rg3 Rh2 Bc6 b7 Qg1 b8B Bb7 Na3 b1Q b6 Qb4 Nb1 Ba8 b7 Qg2 Ba3 c1Q Nb6 Qc2 Rh1 Qd3 Bc1 Qdc4 Qd2 Kf2 Qa2 Qgd5 Ng1+ e2 Nd2 e1Q Ne2 Ne3 Nb3 Qg2 Ba7 Qg1 b8Q Bf3 Qe8 Bh5 Qe5 Qg2 Bab8 Qgd5 Nf4+ Qdd2 Rh2+ Kg1 Re2 Qdd5 Rc2 Rf3 Ne2+ Kh1 B3b2 Qa6 Rc6 Qac4 Bc3 Qdb5 Qd4 Qf5 Qe5 Qg5
1n2B1r1/pNbBBq2/6b1/3B3K/3kpQ1Q/bBp2Q2/1rB2bP1/R5Nq w - - 0 1 illegal: No possible last move, all moves rejected
2qb4/Kq2Rp1P/4Q1R1/RQ1r3R/2B1n1R1/1n1p3p/2RpN3/Qb3kNq w - - 0 1 illegal: No proof kernel
3B3K/1p1B2R1/3qBP1Q/p2pQbQ1/1Q1Q4/1NR1n3/p1rn1Q2/1k3bbb w - - 0 1 illegal: No proof kernel
1R2nBb1/Q2b2p1/4p1p1/1p1RRpNN/1RQ1R2b/6KQ/n3Pp2/2Rr2k1 w - - 0 1 illegal: Other
1B1Q1Q2/b4R2/KB2p2Q/q1B1BN2/br4rn/n4b1B/1r2P1Rb/2nbBk2 w - - 0 1 illegal: No possible last move
rn1Q4/5KR1/2qb2Qb/R1Npk1rq/Nq1qN1bR/q2PR3/R5B1/n2R4 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 Ke2 Kf7 Ke3 Kf6 Kf4 d5 c4 h5 g4 a5 c5 a4 d3 e6 b7 h3 g5+ Ke7 Ke5 b3 f4 b2 f6+ Kd7 f7 a3 b6 h2 g6 a2 f5 h4 f6 h3 g7 Qe8 c6+ Kd8 c7+ Kd7 Nf3 Kc6 Bg2 Ne7 g8R Rh5+ Ng5 Bh6 f8Q Nf5 f7 Nd4 Kf6 e5 Qg4 e4 Nc3 b1Q Rg7 e3 Na4 e2 Rd1 e1B Ne4 h1Q Qg6 Bg4 c8R+ Kd7 Rc5 h2 Rb5 Nc2 Ra5 Bb4 Qh8 Rg5 f8N+ Kc6 Nd7 Qg1 Ndc5 h1Q Qg8 Qc8 Qd8 Qd4+ Kf7+ Qe6+ Kf8 Qd6+ Ke8 Qh5 Kf7 Nd7 b8R Qb3 Rab1 a1Q b7 Qaa3 Rb2 Na1 Ra2 Qc2 Qf8 Qcb2 Re8 Nb8 Qh8 Kc7 Qg8 Qc6 Re5 Na6 b8R Qbc3 Rbe8 Nb8 Rf5 Qcc4 Rff1 Qcc3 Rh1 Qd2 Rh4 Qe1 Nf6 Kd6 Re3 Qec3 Nfe4+ Ke5 Qd8 Qd2 Nb3 Bd6 Nbc5 Q2b4
2BnBb1b/k1p1Q3/B7/2Ppqr2/7B/BQ1N1rb1/1B1KRrn1/1bb1N1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1BQK1B2/2r3p1/qRpQ1nPr/1nr4N/nN1BB2B/6q1/NBb3r1/4bk2 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 e5 c4 Rh6 cxd5 Rb6 f4 exf4 g5 Rh6 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 Kf2 Kd7 e4 Kd6 h4 Ke5 d4+ Kd6 e5+ Kd7 h5 f5 g6 a5 b6 g3+ Kf3 c6 h6 a4 d6 Ke6 h7 Kd5 d7 a3 b5 a2 e6 a1Q b7 g2 e7 Qa6 e8N Ba3 b6 Nh6 Bb2 Bf8 Nh3 g1R Nf2 Rg2 Bd3 Nf7 Be4+ Kc4 d5 Ra7 d6 Qc7 d8B Nd7 b8B Nf6 d7 Bb4 b7 Be1 Nd3 Nd6 Be7 Nb5 d8B Qe5 Bbd6 Qc3 b8B Rc7 Bb4 Be6 Rf1 Kd4 Ba5 Bb3 Bf8 Bc2 Bb6+ Kc4 Bf2 Qca3 Nc3 Qb3 Ke2 f3+ Ke3 Qba3 Bh4 f2 Na2 f4+ Kf3 Qd6 Ndb4 Qe5 Rh1 f1N Qd6 Ne3 Bf2 Nd1 Bfd4 Ndc3 Rh4 Nfd5 Nf6 Na4 Nh5 Nf6 Rh1 Nd7 Bh4 Nf6 Rf1 Qg5 Rf2 Qe5 Ke2 f3+ Ke3 Qh2 Rd2 Qh3 Kf4 f2 Ke5 Qg3+ Ke6 f1R Rd1 Rf5 Rb1 Rg8 h8Q Rc5 Qh7 Rh8 Qg8 Rh6 Qh8 Rc8 Ke7 Rc7+ Kd8 Rd2 Nd5 Rf2 Qg8 Rg2 Qge6 Rf7 Qc8 Rc7 Bf3 Kd3 Ndb4+ Kd2 Be4 Ke2 Bbc3 Rf5 Nd5 Na3 Rb6 Kf1 Ndb4 Nb5 Bb2 Rc5
B2N1Q2/qNb2p2/1NnR1P2/2p3b1/3rKn2/b2rQ2N/2qQ2N1/BkNbr3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 d4 hxg4 b4 e5 d6 Qe7 d5 Qf6 Ra3 Qh4 Rd3 Qd8 Rd4 exd4 Kd2 Kd7 Kd3 c5 f4 a5 e4 g5 h4 a4 f5 a3 e5 g3 h5 a2 b6 a1B e6+ Ke8 b5 g4 f6 g2 h6 g3 b7 Qe7 h7 Bh6 b6 Bb2 Ke4 d3 Nc3 d2 Nh3 g1R Ne2 Ba3 Bb2 g2 Ba1 Nc6 b8N Bg5 Nc1 Qa7 b7 Nge7 Nd7 Ng6 b8Q Nf4 e7 Rf8 Qe1 d1Q h8N Qc2+ Bd3 Rf1 Ng6 g1B Nb6 Bh2 Qd2 Rg1 Nh4 Re1+ Qe3 Rh8 Ng2 Rh5 Qb7 Rb8 Qa6 Ra8 Qa5 Bg4 Qd2 Rd8 Rf1 Bd1 Rf2 Qc3 Ba6 Bg3 Bb7 Rd7 Ba8 Qc2+ Qd3 Bh2 Rd2 Rd8 Nc4 Kd7 e8Q+ Kc8 d7+ Kc7 Qf8 Bg3 Nd6 Kb6 Nc8+ Ka5 d6 Kb4 Nb6 Qb3 Qde2 Qc2+ Nd3+ Kb3 Q2f2 Rb8 d8N Ka2 d7 Kb1 Nb7 Rc8 d8N Rc7 Qfe2 Rd7 Kf3 Bh2 Nc1 Rd3 Ke4 Ne6 Q2f2 Bc7 Re2 Nf4 Qd2 Bh6 Qfe3 Rhd5 Rf2 Bg5 Rf3 Ne2 Rf5 Nf4 Re5 Qa5 Re6 Qa7 Rd6 R5d4+
R1rB1N2/1B1bKrQ1/1b4p1/B7/1Q2Bkbr/1pn2B2/bn4P1/NN1qqB2 w - - 0 1 illegal: No proof kernel
4Qb2/q1K1p3/1Nb1BbQ1/nk1r1QQ1/r3Pr1b/2QR4/pnBB4/4QNr1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 g4 Na6 c4 Nb8 cxd5 h6 f4 gxf4 g5 h5 Ra3 Kd7 Rg3 Ke8 Rg4 hxg4 Kf2 Kd7 d4 c5 e4 f5 h4 a5 d6 f3 Ke3 g3 b6 Kc6 d7 c4 d5+ Kb5 Kd4 g2 g6 a4 g7 a3 h5 f4 b7 f2 d6 a2 Kd5 f3 h6 Na6 b8Q+ Qb6 d8Q Nc5 d7 Ne6 h7 Ra4 Bd3 f1R Qe1 f2 Na3+ Ka6 Bd2 Qc7 Bc2 c3 b5+ Ka5 b6 Nh6 g8B Nd4 b7 Nb3 Nc4+ Kb5 Rh3 Nf7 Rd3 Na5 Nf3 g1B Nh2 Ne5 Nb6 Nec4 Be6 Nb2 Qe8 Rg8 d8Q+ Bd7 h8Q Rg5+ Qe5 Rh5 Qg6 Be8 Bb1 c2 Qdc8 c1B Qeg5 Bd7 Qa7 Qb8 Qa8 Qa7 b8Q Be8 Q5f5 Bd7 Qc3 Bc6+ Ke5 Rg5 Bc2 Rh5 Qd6 Rg5 Qae8 Rh5 Bh6 Bg5 Qdd4 Bh4 Bd2 Rg5 Qde3 Rh5 Qb1 Rd1 Qeg5 f1R Qc1 Rf4 Nf1 Bd7 Kd5 Bd4 Ne3 Rg1 Qe1 Bf6 Nf1 Ka6 Bf7 Bc6+ Ke6 Bb7 Kd7 Bd5+ Kd8 Bc6 Be6 Rg3 Q5h6 Be5 Qfg4 Kb5 Qh3 Rhf5 Qhg5 Bf6 Kc8 Re5 Qhf5 Rg1 Kd8 Rd5+ Kc8 Nb7 Kc7 Na5+
nN1Q4/3N1p2/1Q3b1b/N1Q1Bn2/R2KQ2r/2Rb3k/QrpbQP2/3r1q1r w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Na3 Ke5 Nb1 Ke6 Kd2 Kf5 Kd3 c5 h4 a5 b4 g5 b6 d4 h5 a4 b5 a3 h6 g3 h7 Kg4 b7 g2 b6 a2 Nd2 Bh6 Rh3 Na6 b8Q Nc7 b7 Ne7 Qa7 Rb8 Nc4 Nf5 Bf4 Na8 Nf3 g1B e4 Bh2 Be5 Bf4 Qe2 Bd2 Na5 Qg8 Kc4 d3 d8Q Qg7 Kd5 c4 d7 c3 Qdb6 c2 d8Q Bd7 Qc5 Bb5 Qdd6 Qg6 Qdb6 Qh5 Qaa6 Qh4 Qaa7 Qg3 Qaa6 Qg2 Qaa7 Qf1 Qaa6 Rhg8 h8Q Rg7 Qhd8 Rh7 Bc3 Rh8 e5 Rh7 e6 Rh8 Rb1 a1B e7 Bb2 Bg7 Bf6 e8Q Rh7 Rb3 Rh8 Rh1 Rh7 Rg1+ Kh3 Q8e4 g4 Ne5 g3 Rc3 g2 Nd7 Rh8 Bf8 Rh7 Bd6 Rh8 Bh2 Rh7 Rh1 g1R Qaa7 Rg4 Rg1 Rh4 Rg4 Bde3 Qaa6 d2 Be5 Bd3 Qac4 d1R Qa2 Rc8 b8N Bd2 Qe1 Rh8 Q4e2 Rc7 Ra4 Rb7 Qe4 Rg8 Q1e2 Rg1 Qbc7 Rb2 Q7b6 Ng7 Kd4 Rh1 Qbd6 Qe1 Qdc6 Qf1 Q6b6 Nf5+
3R4/1qr1ppr1/2N4q/2R1N1Q1/bNn2PK1/N1N3rR/1B1p2nN/4knbQ w - - 0 1 legal: proof: e4 b5 g4 d5 d4 h5 gxh5 c6 a4 Qd7 axb5 Qd6 Bc4 dxe4 d5 Qc7 d6 Qd8 Bd5 cxd5 Ke2 Kd7 f4 Ke6 b4 Kf5 c4 Kg4 h4 Kg3 c5 a5 b6 g5 h6 e3 h7 g4 h5 d4 b7 a4 h6 a3 b5 a2 b6 Ra7 d7 Nf6 c6 Rg8 h8N Rg7 c7 Nh5 h7 Nc6 b8N Na5 b7 Nc4 Na6 Qe8 d8R Qc6 b8N Qb7 Qb3 Bd7 c8N Ba4 Qb5 Kg2 Na3 g3 Rb1 a1Q Nc6 Qa2+ Bb2 d3+ Ke1 d2+ Ke2 Qb3 Qg5 Q3b6 Nab4 Q6a6 Rh3 Qab6 Kd3 Kf2 Ke4 g2 Kf5 e2 Ng6 e1N h8Q Ng3+ Kg4 Nf1 Nge5 Q6a6 Ngf3 g1R+ Kh5 Rg2 Nb6 Rg3 Nh2 Ng2 Rc1 Ke2 Rc3 Ke1 N6d5 Qb8 Qf6 Rc7 Qg5 Qbb7 Qhh6 Rh7 Rc2 Bg7 Nc3 Bf6 Rd7 Rg7 Rd8 Rd3 Kg4 Re3 Ng6 Bd4 Nge5 Rd3 Qd6 Bg1 Qd5 Nh4 Qh1 Ng2 Nb8 Qh6 N8c6 Nb6 Nd1 Re3 Rc5 Nc4 Nc3 Rg3+
3BN1bn/1KN3pk/n1r3b1/2p1QBQb/Q1pb2P1/4Q2q/B1bRr1Q1/6Q1 w - - 0 1 illegal: No proof kernel
R1Q3R1/r1B1qR1N/N1r3b1/b1R2qn1/R5qk/1K1pQpn1/2q1pP2/R1N5 w - - 0 1 legal: proof: e4 b5 g4 d5 d4 h5 gxh5 c6 a4 Qd7 axb5 Qd6 Bc4 dxe4 d5 Qc7 d6 Qd8 Bd5 cxd5 Kd2 e5 Kc3 a5 b4 g5 h4 f5 d7+ Ke7 b6 Kf6 h6 g4 h5 e3 b7 Kg5 b5 f4 b6 e4 h7 f3 h6 g3 Ba3 e2 Qd4 e1Q+ Kb3 e3 c4 e2 c5 g2 c6 Na6 b8N Bb4 c7 Nf6 b7 Nh5 Rh4 Qd2 Nc3 Qe7 d8R Bf5 c8R Ra7 Na2 Nc7 Rf8 Ne6 Na6 Ng3 b8Q Bg6 Rf7 Bc3 Rc6 Rc8 Rc5 Rc6 h8R Bb4 h7 Bc3 Bc1 a4+ Ka3 Ba5 Rg8 Qc7 Rhf4 Qe7 Nh3+ Kh5 Qc3 g1Q Qc8 Ng5 Qe3 d4 Bb2 d3 Be5 Qg2 Nc1 Qg1 Re4 Qg2 Bc7 Qg1 Nf4+ Kh4 Rd4 Qg2 Rc4 Qh3 Nh5+ Qg4 h8R Bb6 Rc2 Ba5 Ka2 a3 Kb3 a2 R2c4 Qd8 Ra4 Qe7 Rb1 a1Q Nf6+ Bh5 Nh7 Qae5 Rba1 Bg6 Qd7 Qf5 Ra8 Nh5 Rhg8 Ng3 Qc8 Qc2+
RN6/5bbK/1rnqN2B/1qP3N1/2kpN1B1/RNbq2Nn/n4N2/2R4n w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 c5 a4 cxd4 f4 h5 e4 b5 axb5 Rh7 e5 Ra7 f6 Rh8 Qg4 hxg4 f5 Qb6 Kd1 Kd8 Ke1 Rc7 Kd2 Rc6 Ke1 Kc7 f7 Rf6 exf6 Kd6 Kd2 Qc7 Ke1 Qd8 Kd2 Kc5 Kd3 g5 Ke4 e5 c4 d3 b4+ Kd6 h4 a4 c5+ Kc7 b6+ Kc6 h5 Kb5 h6 g3 b7 g4 h7 a3 Nd2 g2 Be2 g3 Nh3 g1Q Nb3 g2 Bh6 a2 Nf2 Ne7 Bg4 Qh2 Rhc1 Bg7 f8R g1N f7 d2 f6 Nd5 Kf5 d1N Kg6 Nc6 b8N e4 Rg8 e3 f8N d6 f7 e2 Ne6 e1B f8N N5c3 Ng5 d5 Nfe6 Kc4 b5 Qhd6 b6 Nh3 b7 d4 Nd7 Qb6 b8N Qb5 Rd8 Rf8 h8N Rf6+ Kh7 Rg6 Nfe4 Ndf2 Ndf6 Nh1 Ng3 Bd7 N5e4 Be8 Nf2 Bf7 N6e4 Bd2 Rab1 a1Q Rc8 Qa7 Ra1 Qaa6 Ra3 Rf6 Re1 Na2 Rc1+ Bc3 Rg8 Be8 Nf7 Rg6 Nfg5 Bf7 Na1 Qaa4 Rc8 Qc2 Nb3 Rf6 Na6 Qd3 Ra8 Rf5 Nb8 Re5 Nf4 Re7 Nfe6 Rb7 R3a7 Rb6 Ra6 Kb4 Ra3 Kc4
4Br1q/2N4p/nN1rbq2/1R5P/K1R1qNnn/3qb3/N3NRN1/b4NBk w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Qc2 d5 Qf5 f3 Qf4 gxf4 cxd5 Be6 Na3 Bg4 Nb1 Bc8 Kd1 Kd7 Kc2 Kd6 Kb3 Ke5 d4+ Ke4 g4 c5 h4 f5 b6 a5 h5 c4+ Ka4 f2 b4 f3 b7 c3 b5 c2 d6 f4 d7 Qe7 d8N Bg7 b6 Qd7+ Nc6 Bh6 d5 Na6 b8R Qe7 b7 Ra7 g5 Qc7 d6 Qg7 g6 Nf6 d7 Ra8 d8N Qg8 g7 Bg4 Ra2 Bd7 Rh4 Bf5 Ne6 Ng4 Be3 c1Q Nb4 Qc4 Rb2 Qgc8 g8N Qd8 Bg2 f1Q Ne7 Rf8 Nd5 Rf6 Ba7 Qh8 Ne3 Qe1 Bd4 Qd3 Na2 Rg6 Bh3 f2 Ng2 f3 Nef4 f1Q e3 f2 Nge2 Kf3 e4 Rd6 e5 Bc8 e6 Bg5 e7 Be6 e8N Bh6 Ng3 Qee4 Nbc3 Qa1 Nc7 f1N Rf8 Nfe3 b8N Nf5 Nd7 Re8 Rf7 Rf8 Nf1 Qf6 Rb5 Bg5 Nfe2 Be3 Nb6 Kf2 Nef4 Kg1 Nce2+ Kh1 Rb4 Qh8 Bc5 Qaf6 Rc4 Bd2 Bg1 Be3 Rb4 Nh2 Rg4 Nh4 Rg5 Ng4 Rc4 Ne5 Bf5 Ng4 Bg6 Rd7 Kb5 a4 Re5 a3 Ka4 Rd6 Rb5 Qfg7 Rff5 Qf6 Be8 Qh6 Nb4 a2 Rf6 a1B Na2 Qdd5 Nh3 Qdd3 Rf2 Qhg6 Nhf4 Qgf6
Br3R1b/2RKR3/3B1PBR/kbR2n1q/2pbbb2/2q4b/1N1N3N/1n5R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Ne5 Qf3 Nd7 Qf4 Nb8 h4 gxf4 g4 a5 h5 Ra6 g5 Rg6 hxg6 Bb7 Rh5 Ba6 Rh1 Bc8 Ke2 Kd7 d4 c5 b4 Kc7 f6 Kb6 d6 e5 g7 h5 d5 e3 Kf3 c4 Ke4 a4 d7 f3 Kf5 e4 Ke6 h4 d6 f2 g6 h3 Bd3 f1B Nd2 a3 Ngf3 e2 Nh2 a2 Ba3 e3 Re1 Nh6 g8B a1Q g7 Bb7 Bg6 Qc7 d8R Qb2 d7 Qc5 Rc8 Qh5 d8R Nf5 Rd6+ Nc6 Kd7 Bg2 Rc7 Ba6 Bd5 Qc3 g8R Bg7 Rf8 Rg8 Re6 Bh8 Re7 Ncd4 Ba8 Nb3 Rh7 Nc1 Rh6 Na2 Rc6+ Ka7 Rf7 Rb8 Re7 Be4 Reg1 e1B Rg3 Bb7 b6+ Ka6 b5+ Ka5 Bd6 Ba6 b7 e2 b6 Bf2 Rd3 e1B Rc7 Rf8 b8R Bd4 b7 Bg3 Rbc8 Bge5 b8N Bf4 Re3 Rg8 Ree8 Bg2 R3e7 Be4 Rf8 Bg2 Nhf3 h2 Rc6 Bh3 R8c7 Bb7 Na6 Bc8+ Ke8 Bb7 Nb4 Ba6 Rb1 h1B Nd3 B1g2 Nh2 Bf3 Kd7 Be4 Rff7 Rb8 Nb2 Nb4 Rf1 Nc2 Rf8 Na3 Rh1 Nb1 Rc5+ Bb5+
2bB4/2N1NKPp/3r1r1N/RN3b1N/7n/pB1kNR1R/3b3q/b1b1b2B w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 h4 Bd7 g4 Bh6 Qf3 Nc6 Qf4 gxf4 g5 Ne5 h5 Ng6 hxg6 Bf8 Be2 Be6 Bf1 Bc8 Ke2 Kd7 b4 Kd6 d4 c5 f6 a5 f7 e5 g7 a4 g6 c4 b6 e3 Kf3 c3 Ke4 c2 b5 e2 b7 e1B b8N f3 b6 f2 b7 Be7 f8R Bb4 Rf3 Ra7 Ne2 Qe8 Na6 Bc3 b8N Bf8 Nb4 Ra6 Ng3 Ne7 g8B Ra8 g7 Be1 Bg5 c1B N8a6 Nf5 Rh3 Qd7 Nc2 Qf7 Ne3 Ba5 Bg2 f1B Bh1 Bg2 Na3 Bad2 Nh5 Nh4 Nc7 Ra6 Bd8 Be7 Ra2 Bf6 Nab5+ Kd7 d6 Kc6 d5+ Kc5 d7 Rd6 Ra1 Qe8 Bf7 Rf8 Ra3 Ng6 Kf5 e4 Bg8 Ba1+ Kg5 Rff6 Ra2 Rb6 d6 Nh4 Bb3 Bf1 Rc2+ Kb4 Rc5 a3 Re5 Bc4 Ref5 Be6 Rc5 Rf4 Re5 Bf5 Kf6 Qh8 Kf7 Rc6 Bg5 Ra6 d8N Rb6 d7 Rd6 Na7 Kc3 Ndc6 Qd8 Ra5 Kd3 Ne7 Qh8 Nab5 Qd8 Na6 Qc7 d8N Qc2 Nac7 Qa2 Nc4+ e3 Bf6 Ke4 Bg5 e2 Ne3 e1B Ne7d5 Bb4 Kg8 Bfd7 Nf7 Qh2 Bd8 Bbd2 Ne7 Kd3 Nh6 Bg4 Na7 Rff6 Nab5 Rg6 Kf8 Bgf5 Kf7 Rgf6+
5Bkn/1R1nR2p/1r1qp3/N1Nr1qq1/5P1N/BRK3p1/3BBBB1/q4b2 w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 g5 exd5 f6 d6 Bh6 h4 Kf8 g4 Bg7 d4 gxh4 g5 f5 Qg4 fxg4 d5 Ke8 c3 Bd4 cxd4 Bd7 Bg2 Be6 Bf1 Bc8 Kd2 Kf7 f4 c5 b4 a5 d7 g3 b6 h3 g6+ Kf8 g7+ Kf7 b5 h2 d6 c4 b7 a4 d5 a3 b6 a2 Na3 Nc6 b8N Ba6 b7 Qb6 d8B Qb1 d7 Nd4 d6 Ne2 Bb6 Qe4 d8B Qf5 d7 Qe4 Bf2 Nf6 Ba5 Kg8 d8B Qf5 Rb1 a1Q Nd7 Nc3 b8R Nb5 Nc5 Nd6 Nf3 Nf7 Nh4 Nd7 R8b7 Rb8 Bg2 Bb5 Re1 h1Q Re4 c3+ Kc2 Ba6 R1b3 Bf1 Nc4 Qg5 Re2 Qh3 Ba3 Qe6 Kd3 c2 Bd2 c1Q Na5 Qd1 Bc7 Qef5+ Kc4 Rc8 Bd6 Rc6 Kb4 Nfe5 Re4 Ng6 Re2 Rb6+ Kc4 Kf7 g8B+ Kg7 B8d5 Rd8 Bdf3 Nh8 Bg4 Kg8 Bh5 Qa2 Kc3 Qab1 Re4 Qa2 Be2 e6 Bf8 Qab1 Reb4 Qa1+ Kc4 Nf6 Re7 Rd5 Rb5 Nd7 Kb4 Qae5 Kc4 Qd6 Kc3 Rc6 Rb8 Rb6 Rb7 Qa1+
5qBB/N2n2Pb/1R1ppN1N/1NN1b1R1/R1N4B/4p1rk/1p5n/4K1rr w - - 0 1 legal: proof: h4 g5 hxg5 f5 d4 c5 dxc5 a5 e4 d6 e5 Qd7 b4 axb4 e6 Bg7 exd7+ Kf7 Qd3 Bf8 Qe4 fxe4 d8B Kg6 f4 Kf5 a4 Kg4 c4 h5 f5 b5 a5 h4 g6 h3 g7 e3 a6 h2 a7 b3 c6 b2 c7 b4 f6 b3 c5 Rh5 c6 Rg5 f7 Nh6 g8N Nd7 Nh3 Nf6 Nf4 Ne8 Bc4 Rg7 Nh5 Be6 c8R Bd5 c7 Nf5 Nh6+ Kh4 g4 Kh3 g5 Rh7 g6 Bg7 f8N Nd4 Rg1 h1R Nd2 b1Q Ne6 Be5 Nf6 Rf7 Nc5 Ne2 Rb8 Rg7 c8N Bg8 Rb6 Qf5 Bb2 Bh7 Ra4 Ng3 Bg8 e6 Nc4 Nf1 Rg5 Rg1 Bc3 b2 Bd4 Rb8 a8N Qf3 Nc7 Qa8 Nfd5 Nf6 Nb5 Nd7 Nca7 Rh1 Be7 Rf8 Bc3 Rf3 Nf6 Rg3 Bf8 Rf7 Bg7 Qe8 Bh8 Qf8 g7 Rgg1 Ke2 Rg3 Be1 Rgg1 Bh4 Rg3 Nd5 Rf6 Ke1 Rg6 Nf6 Rgg1 Rh5 R6g3 Rg5 Nh2+
nN1rB2r/1p1B1br1/1PNk4/1R4r1/2Kb2Nq/3RB1pn/1N2Nn1r/6RN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 exf4 c4 d5 cxd5 Ra6 b5 Ra7 Qa4 Ra8 Qb4 axb4 e4 Kd7 Ke2 c5 Kd3 f5 h4 g5 a4 b3 e5 g4 d6 b2 h6 f3 a5 g3 a6 f4 h7 f2 h5 f3 h6 Ra7 e6+ Ke8 d7+ Ke7 Kc4 Bg7 d4 Bf8 d5 Ra8 a7 Qb6 d8N Bg7 d6+ Kf6 e7 Ke5 e8B Nd7 Ra5 Ngf6 Nd2 b1R Ne4 Nd5 Ne2 Nf4 Bh3 f1R Be3 f2 Rg1 Rb2 Ra3 Re1 Rd3 f1R Nf2 Reb1 Be6 Nh3 Nh1 Rf7 Bg4 Rb8 a8N Qa5 Nb6 Qa4+ Kc3 Qe4 Na4 Nb6 d7 Na8 b6 c4 Bf5 Rd2 Nb2 Qh4 Kb4 c3+ Kb5 c2 Nc6+ Kf6 d8N c1N Bg4 Bf5 Kc4 Be4 Bgd7 Bd5+ Kb5 Rc8 Nb8 Ke7 Ndc6+ Kd6 Ncd4 Rf3 Ndc6 Bd4 Kb4 Rd8 Kb5 Rg8 h8R Rf5 h7 Rg7 Rg8 Rf8 h8N Bf7 Ng6 Ra1 Nge5 Ra5+ Kb4 Rc5 Ng4 Rcg5 Rh8 Rc2 Rh5 Rh8 Nc3 Rh2 Ne2 R5g6 Rb5 Rg5 Be6 Rgh5 Kc4 Rhg5 Rdb3 Nd3 Ra3 Ndf2 Rd3 Bg6 B6d7 Bf7+
N7/N2B1nRB/KN1q4/1Bkbp1rR/1R1b2B1/Bp1r2n1/2rnP3/1q2r2B w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 dxc5 g6 f5 Bh6 Qd4 Bg7 fxg6 Bh6 g5 Bf8 Qg4 hxg4 Kd2 e5 Kd3 Ke7 Kc4 f5 Kb5 d5 h4 b6 a4 f4 c4 f3 h5 b3 a5 b2 g7 f2 g6 d4 a6 d3 h6 g3 h7 g2 a7 d2 c6 Kd6 c7 d1N c5+ Kd5 c6 Qe8 Nc3+ Kd4 Rb1 Nf6 g8B Qd7 g7 Ne4 Bc4 Bc5 g8B Ng3 Nd5 Ne3 Rh5 Bb7 c8B Qd6 c7 Nc6 Bg4 Rc8 a8N Nd8 Bd7 Bc6+ Ka6 b5 Ndb6 b4 Bb5 Nf7 Rg5 Be4 Rg7 Nc4 Bg4 Rd8 c8B Nd2 Bcd7 Bd5 Nf3+ Ke3 Bge6 g1R Bg2 f1R Nd4 Re1 Nc6 Bd4 Bh1 Rc8 Na7 Rc2 Bg4 b3 Ra1 b1Q Ra4 Rgf1 Rc4 Rf5 Ba3 Rg5 Rb4 Nd8 B8e6 Nf7 Bef5 Rhc8 h8R R8c3 Rh5 Rd3 Bc4 Bc3 Bfe4 Kd4 Bh7 Kc5 Bcb5 Bd4
2R3Bn/1q1rk1b1/2r2N2/4n1R1/1p3PR1/NnQQ2q1/N2RK3/1N4qN w - - 0 1 legal: proof: b4 b5 e4 d5 c4 h5 cxd5 f5 exf5 c5 g4 c4 gxh5 c3 Bb2 a5 bxa5 cxb2 a6 b4 a3 Bd7 a4 Bb5 axb5 Qc7 b6 Qd8 b7 Nc6 b8N Nxb8 h4 g5 f4 e5 d4 e4 a7 e3 h6 e2 h7 g4 f6 g3 d6 g2 d5 Qb6 d7+ Kd8 h5 Qb5 f7 Qb7 h6 Ke7 d8R Na6 d6+ Kf6 d7 Qc8 Qd3 Qc5 Nh3 g1N Nf2 Nb8 Ra5 Qe7 Rc8 Na6 d8R Nc5 Rh4 Ne6 Rg5 Nc5 Nh1 Qd7 Rhg4 Rb8 a8N Nh3 Nc7 Qc6 Nb5 Ne7 N5c3 Qb7 Na2 Bg7 f8N Nc6 Nd7+ Ke7 Nf6 Ne5 Rd5 Rd8 h8Q Nb3 h7 Rd7 Bg2 Rd6 Rd4 Rd7 Bd5 Ra8 Bg8 Ra6 Rd5 Nf7 Rd6 Ng1 Kf2 Nf3 Ke3 Bh6 Qg7 Rb6 h8N Ne5 Rd5 Rc6 Ng6+ Ke6 Qh8 Bg7 Qh3 Rb6 Qc3 Rc6 Rd2 e1Q+ Re2 Nf3 Ne5 Ke7 Nc4 Nh8 Nca3 Qg3 Rd2 Ne5+ Ke2 Qh4 Qhf3 Qh3 Qcd3 Qg3 Nbc3 b1Q Qfe3 Qc2 Ncb1 Qc5 Qed4 Qca7 Q4c3 Qag1
nrB2Br1/2Q2q2/rb2R3/3r1p2/b2N2R1/1B1RQK2/P1q1R2q/k1B2R2 w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 b4 d5 g4 c5 gxh5 a4 cxd5 a3 d4 c4 Be3 Nd7 b5 Nc5 dxc5 Bg4 Nc3 Be6 Na4 Bc8 Nb2 axb2 Rc1 b1Q b6 Qa1 Rc3 Qxb6 Rc2 Qd8 Kf2 Ke7 h4 b5 c6 g5 c7 f5 e6 Kf6 d6 Ke5 h6 b4 d7 g4 e7 g3+ Kf3 b3 e8R+ Ne7 h5 c3 h7 g2 h6 b2 Qc1 Rg8 h8R b1Q h7 Qab2 Rd2 c2 Rd3 Rg6 Rg8 Rga6 Rg4 Rb8 h8B+ Bg7 Qe1 c1R Bc5 Rc2 e4 Rd2 Qe3 Q1c2 Ne2 g1R Nd4 Bb7 c8B Qc7 d8Q Bc6 Be2 Ba4 Bd1 Qbb3 Ba3 Qf7 Bc1 Bf6 Bg7 Rgg2 Ne6 Nd5 Bf8 Nb6 Rf1 Na8 Qe7 Qd6 Qc7 Bd8 Nd4+ Qe6 Rf4 Rg8 Rg4 Qe7 Qd7 Bb6 Qc7 Qc5 Bb3 Qc2 Qc4 Qh6 Qf7 Qh2 Qg7+ Kd6 e5+ Kc5 e6 Kb4 Qge5 Rd1 Qc7 Rd2 Rd8 Rd1 Rd6 Qf7 e7 Rd2 e8R Rd1 Bd2+ Ka3 Rde6+ Kb2 Bc1+ Ka1 Qf2 Rh8 Re2 Rd2 Qe3 Rg8 Re6 Qc4 Nc2+ Kb1 Rc3 Rd5 Nd4 Ka1 Rd3 Qc2
nRQ3BB/P1n1r2N/1Rp2R2/1B2Rnn1/Rr6/1B1bn3/1k2K1br/7Q w - - 0 1 legal: proof: d4 a5 e4 d5 b4 axb4 c4 f5 cxd5 c6 exf5 Ra6 d6 Qa5 d7+ Kf7 d5 Qc7 d6 Ra8 dxc7 g5 h4 Bh6 f4 Ra6 g4 Bg7 f6 Ra5 f5 Rc5 Nc3 Rb5 Nce2 Rb6 Nf4 gxf4 g5 Bh6 g6+ Kf8 Qb3 Ra6 Qd1 Bg5 hxg5 Ra8 a4 h5 g7+ Kf7 d8R b5 a5 e5 a6 b3 a7 b2 Rb1 h4 Rh2 b4 Nh3 e4 Qc2 f3 Rd4 f2+ Ke2 b3 Ke3 Ne7 g8R Nd7 Qc4+ Nd5+ Ke2 e3 Re4 Nb6 Bg2 f1N Ra1 b1R Re5 b2 Qe4 Be6 c8B Nc7 Ra3 Bd5 Ba6 Re8 Ra4 Re7 Bb5 Nba8 Rb8 Rh7 Bd2 Rh6 Bc3 Rh5 Nf4 h3 Ng6 Rh4 Rh1 h2 Nf8 Rh3 Rg1 h1N Nh7 Rh2 Qf3 Nd2 Rd1 Nf1 Rb6 Be4 Rd8 Bd5 Rdb8 Nhg3+ Kd3 e2 Bh3 Nh5 Qh1 Ng7 Bg2 e1N+ Ke2 Ne3 Bd4 Nge8 Bc3 Nf3 g6+ Kg8 g7 Kf7 Bd4 Ng5 Bc3 Nd6 Bd4 Rh4 Be4 Rh3 Bc2 Bg2 Bc3 Rh2 Bd4 Rc1 Bb3+ Rc4 Bc3 b1B Bb2 Nc8 g8B+ Ke8 f7+ Kd7 f8R Kd6 f6 Rb4 Bbd5 Kc5 f7 Nd6 Ba1 Ndf5 Bb3+ Ncd5 Rfc8 Bc2 f8Q Bce4 Re8 Bb1 Re6 Ndc7 Bh8 Bc2 Rf6 Kd4 Qf7 Kc3 Qe6 Kb2 Qc8 Rf7 Re4 Re7 Re5 Bd3+
1kN2B2/2RbQ1q1/7b/B1B2p1Q/1K1bQnrn/N7/P3npn1/3B1BQ1 w - - 0 1 legal: proof: c4 a5 f4 e5 d4 d5 cxd5 h5 b4 axb4 g4 c5 dxc5 Qe7 gxh5 Qd8 f5 Na6 Nd2 Nb8 Rb1 Nc6 Rb3 Nb8 Rf3 Bd6 Rf2 Bf8 Rf4 exf4 e4 Ke7 e5 b5 e6 Kf6 e7 Ra4 Ke2 Ra6 Ke1 Re6+ fxe6 Rh6 Bd3 Rh7 Bf1 Rh8 e8Q Ke5 h4 g5 c6 Kd6 h6 Kc7 h7 f6 h5 b3 h6 b2 e7 b1N Ne2 g4 Nc3 f3 Nc4 g3 Nb6 g2 Be3 g1B Bc5 Nd7 d6+ Kb8 Rh4 b4 Rc4 b3 Nb5 b2 Na3 Ne5 d7 Nc3 Kd2 Qc7 d8B Bg4 Nc8 b1N+ Kc2 Qd7 Kb3 Nd5 Ba5 Ne3 Kb4 Ng2 Qf7 Nc3 e8Q Qa7 Qfe7 Ng6 Qb1 Ne2 c7+ Ka8 Qe1 N6h4 Qg6 Bd7 Qge4+ Bc6 Qg3 Bd4 Qh2 f2 Qg1 Nc3 Nd6 Ne2 c8B Qc7 Bg4 f5 Nc8 Nf6 Rc3 Rg8 h8Q Qd7 h7 Nh5 Rc1 Nhf4 Bh5 Nc3 Bd1 Rg4 Rc2 Bfg7 Qhe8 Kb7 h8B Nce2 Qh5 Bh6 Bg7 Kb8 Bf8 Qb7+ Bcb6 Bd7 Rc7 Qa6 Bc5 Qf6 Qd8 Qf7 Qde7 Qg7
1rB4Q/1p1Q1n1p/2B1b1qN/1NRQ1NQ1/1q6/b1Nrr3/rk4P1/1N4K1 w - - 0 1 legal: proof: c4 a5 b4 f5 bxa5 d5 cxd5 c5 e4 Ra7 exf5 Qb6 a4 Qd6 Ra2 Ra8 Rb2 Qb6 Rb4 Qd8 h4 cxb4 f4 Nd7 Bb2 Ne5 f6 g5 f5 Nf7 Be5 Nfh6 Bf4 gxf4 Nc3 Nf7 Nb1 Ng5 hxg5 Ra7 Qb3 Ra6 Qd1 Ra8 Kf2 Kf7 d4 e5 g6+ Ke8 d6 Kd7 a6 Kc6 d5+ Kc5 g7 f3 a7 e4 a5 b3 d7 Kb4 d6 b2 f7 Nf6 g8B Qe8 d8N Bd7 a6 Be7 f8Q Nh5 f6 Qg6 f7 Ba4 d7 Bc6 Bb5 Qe6 Qe8 Qc4 f8N Bf6 Nfe6 Ng3 Nd4 Be7 Be6 Bd5 Nf7 Nf5 d8Q Nd6 Nge2 e3+ Kg1 Rf8 Bg4 Be6 Nec3 e2 Nh6 Nf7 Qed7 Qc5 Rh5 e1R+ Kh2 f2 Bc6 f1R Ndf5 Rb8 a8N Re3 a7 Rf2 Nc7 Rff3 Q1d3 Kb3 a8Q Qb4 N7b5 Rf2 Qda5 Rfd8 Q3d5+ Kc2 Kg1 Kc1 N1a3 b1Q Bh3 Q1e4 Nab1 Ra2 Rg5 Kb2 Rh5 Re8 Qad8 Bf8 Qg5 Rbd8 Qb8 Rd3 Qbe5 Rb8 Qh8 Qg4 Rh4 Qh5 Rc4 Qg6 Rc5 Qe4 Rc4 Ba3 Rc5 Qb4 Nfd4 Bf5 Qc7 Be4 Bc8 Bf5 Qcd6 Re5 Qd7 Be6 Ndf5 Ree3
K1QR1Q1r/3N1N1q/2pP3r/R3B1Q1/Q6R/2qr1rR1/q3pQq1/1k1b4 w - - 0 1 legal: proof: c4 d5 e4 b5 exd5 bxc4 f4 e6 d4 Nc6 a3 Bb4+ axb4 Nb8 b5 Qf6 Be2 Qg5 Bf1 Qd8 g3 h5 Qf3 f5 Qd1 e5 Be2 e4 Bf3 Nd7 Bg4 Ne5 fxe5 f4 Be2 Nh6 g4 Nf5 gxf5 Kf7 Bf3 Ke8 Bg4 hxg4 Kd2 Kf7 Kc3 a5 h4 g5 b4 c6 d6 f3 f6 Kg6 b6 Kf5 b5 g3 f7 g4 f8Q+ Qf6 b7 f2 b8R f1Q d7 a4 Kb4 c3 Kc5 a3 Kb6 g2 d8Q c2 d5 a2 h5 e3 h6 Ke4 d6 g3 h7 e2 e6 Ba6 e7 Qh6 e8Q+ Qe6 Bb2 c1R Nf3 g1R Rh3 g2 Qef7 Qe7 Nbd2+ Kd3 Ng5+ Qf3 Qa4 Rgd1 Nde4 g1Q+ Nc5+ Kd2 Rg3 Qge3 Be5 Qg2 Qf2 Rc3 Nf7 Ra3 Qc8 Qc3 Nd7 Rh1 Kc7 Rh6 b6 Bc4 Kb7 Bb3 Qfd8 Qh4 Qg5+ Kc2 Qf8 Ra5 Rd8 Rd5 Ka8 Rd3 b7 Qh5 b8Q Qhh2 Re1 a1Q Qc8 Qa2 Rd1 Rf3 Rd5 Kb1 Rc5 Bd1 Ra5 Rg8 h8R Qh4 Rh7 Rh8 Rg7 Qe4 Rg6 Qed3 Rf6 Qh7 Rf4 Qc5 Re4 Rad3 Rh4 Qc3
2NNQnr1/2pn4/1npN1R2/2p2R1B/3QR1K1/5R1N/q3rP2/N1kqq3 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 a5 b4 g4 bxa5 d6 c5 Bh6 c6 bxc6 Ba3 Bf4 Bc5 dxc5 h3 Ba6 g3 Be2 gxf4 g3 Qc2 Qd3 Qd1 Bg4 hxg4 Qd8 Ke2 Kd7 Kf3 Kd6 a4 Kd5 d4 h5 g5 e5 g6 g2 a6 h4 f6 e4+ Kg4 h3 g7 e3 f5 Ke4 a7 e2 a5 e1N f7 h2 f8R Ne7 g8Q Rh3 a6 Qd5 f6 Qd6 d5 Nd3 f7 Qh6 d6 Qe3 d7 Kd4 d8N Rh7 Ra4+ Kd5 Re4 Qd4 Be2 Kc4 Nh3 Nc8 Nd2+ Kc3 Nb3 Kb2 Na1 Qe5 Rg1 Ne1 Qd4+ Kc1 Qg6 h1Q Qe6 Rh8 Qe8 Nd7 Bd1 Rb8 a8N Rb4 a7 Rb2 Nb6 Qd5 a8N Nd3 Nc4 Nf4 Nab6 Ng6 Nd6 Rg8 Rge1 Qc4 R1e3 Qa2 Rf3 Qe1 Rf5 Re2 Rf6 Na7 Nbc8 g1Q+ Kf5 Rb2 Bh5 Qh1 Kg5 Re2 Kg4 Qd1 Rf5 Qhe1 Rf3 Nb5 Nc2 Nc3 Na1 Rg7 Rg8 Na4 f8R Nab6 R8f6 Qc4 R6f5 Qa2 Rgf8 Rg8 R8f6 Ngf8+
Q2nRB2/b7/P4qq1/1BR1b1Q1/2N1KB2/3pRp2/R1p1q1q1/2k2BBr w - - 0 1 legal: proof: c4 e5 b4 a5 f4 axb4 fxe5 b3 d3 b5 Kd2 c5 Nf3 b4 Ke1 Ra5 Ng1 Rb5 cxb5 c4 Qc2 c3 Qd2 Qg5 Qd1 Qd8 Nd2 h5 Kf2 f5 Ke1 Nc6 Nc4 Bb7 Ne3 Na5 Ng4 Nc4 dxc4 f4 Ne3 Be4 g4 Bf5 gxf5 Rh7 Ng4 hxg4 Qd5 Rh6 Qd1 Rh8 Kf2 Ke7 h4 d5 e4 g5 a4 g3+ Kf3 g2 h5 d4 e6 Kf6 a5 Ke5 f6 d3 c5 Kd4 b6 c2 h6 Kc3 e7 b2 e8B b1Q c6 b3 e5 g4+ Ke4 b2 a6 g3 c7 Bg7 c8R+ Kb3 b7 Ne7 b8B Nf5 f7 Bf8 e6 Ne7 h7 Bg7 f8B Nc6 e7 Be5 Nf3 g1Q Rh3 g2 Ba7 Qf2 Bd7 g1B e8R Qg2 Qd2 Qf6 Ra2 Nd8 Rc5 Qa1 Bb6 b1Q Bb5 Qc3 Qe3 Qe1 Rg3 Qee2 Bd2 Rg8 h8Q Rg4 Ba7 Rh4 Bc1 Rh1 Qg8+ Kb4 Qd5 Qb3 Qa8 Qbf7 Rh3 Qg3 Nd2 Qgg2+ Rf3 Q7g7 Nc4 Kc3 Kd5 Q2g6 Qd2+ Kb3 Re3 f3 Qa5 Qgg2 Ke4 Q7g6+ Kd5 Qgf2 Rc7 Qh5 Re4 Rh2 Qd2 Qg2 Qg5 Bgd4 Bf4 Rh1 Bb6 Qhg6 Bbc5 Bc3 Bg1 Bcd4 Re3 Ba7 Rc5 Kc3 Nb6+ Kd2 Nc4+ Kd1 Qh5 Q6g3 Ke4 Kc1 Qh6 Qg8 Qg5 Qgg6+
R2Bb3/4Rn2/1N2B2q/1bQpK1p1/3P3R/3Bn1nR/pkBr1p2/2R1Q3 w - - 0 1 legal: proof: f4 a5 b4 b5 a4 c5 bxc5 e5 axb5 exf4 g3 Ra6 bxa6 Bd6 Kf2 Be7 Ke1 Bf8 Na3 f5 Nc4 h5 Ne3 f3 Ng4 hxg4 Kf2 Bd6 Ke3 f2 Kd3 f4 Kd4 f3 Kc3 Bf4 gxf4 Qg5 Qe1 Qh4 Qd1 Qd8 Kd4 Kf7 e4 Kf6 h4 d5 c4 g3 h5 a4 f5 g2 e5+ Ke7 f6+ Ke6 a7 a3 a8R a2 h6 g6 c6 Qd6 c7 Qd7 c5 Qe7 f7 Qf8 c6 Ne7 h7 Qd8 f8Q Ng8 Rh3 Qe8 Ne2 g1N Qe1 Na6 Qc5 Qf7 Nc3 Nb4 Bd3 f1B Na4 Qf8 Nb6 Bd7 c8B Nh6 c7 Nf7 Bb2 f2 Rc1 g5 Bca6 Qg7 c8B Qh6 Bc2 Re8 h8R Bb5 d3 Kf5 e6 Kf6 e7 Ne2+ Ke3+ Kf5 Bf6 Ng3 Kd4 Kf4 Rh7 Bdc6 Bf5 Rc8 Be6 Be8 Be5+ Kf3 Bc7 Rb8 Bd8 Rc8 Qg1 Ke2 Rh8 Kd2 Qh1 Bed7 e8R Rc6 Re7 Be8 Bf5 Re6 Qg1 Re2 Be6 Qg6 R8h4 Qh6 Rf1 Re1 Qh1 Kc1 Qe4 Rd1 Qe1 Kb2 Rfh1 Nh8 Ke5 Rd2 d4 Bf7 Bb3 Nc2 Rf1 Ne3 Bc2 Bfe8 Rg1 Bbc6 Bad3 Ba4 Qe2 Bad7 Rc1 Bb5 Qe1 Nf7+
r2r1Q2/3k3N/2r1n1K1/nb1bn1Q1/Bn2q3/2QPbr2/1N2Q2Q/3R1BNN w - - 0 1 illegal: No possible last move
2B1r1Q1/3Q2QK/1RB1b3/qB1b1k2/2N2Nr1/PQ2b3/4n1n1/nb2BnqQ w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h5 g4 Nc6 g6 Nb8 g5 Ra5 Bg2 Ra7 Bf1 Ra8 a3 Rh7 Ra2 Kd7 Rc2 Ke8 Rc4 Rh8 Rg4 hxg4 Kf2 Kd7 Ke3 c5 Kf4 b5 d4 e6 h4 b3 f6 b4 f7 g3 d6 b2 g7 b3 g6 c4 h5 g2 h6 e5+ Kf5 e4 h7 e3 d5 e2 Nh3 e1N Nf4 g1N Nd2 c3 Nc4 c2 Bd2 b1B Rh6 Ng2 Be1 Nf6 g8B b2 g7 Ra4 Kg6 c1Q+ Qd3 Ne4 Qb3 Be7 f8Q Nc6 Bf7 Nb4 g8B Bg5 Qg7 Qa5 Be6+ Ke8 Bg4 Ne2 d7+ Kd8 B8e6 Ba2 Bf3 Re8 h8Q b1B Kh7 Nc2 Rf6 Kc7 d6+ Kc6 d8Q Na1 Bh3 Be6 d7 Qe3 Qhg8 Qg1 Qa8+ Kc5 d8Q N4g3+ Bf5 Bh6 Qde7+ Kd4 Bc6 Bd5 Qd7 Rb4 Nd3 Be3 Bg4 Ke4 Nf4 Rb7 Qdf7 Rb4 Bc8 Ra4 Qab7 Rb4 Qbd7 Ra4 Qh5 Rb4 Qh1 Ra4 Re6+ Kf5 Bb5 Rb4 Rb6+ Be6 Bc6 Ra4 Nd2 Re4 Nc4 Rd4 Nd5 Rg4 Nf4 Qd2 Nb2 Nc1 Bfb5 Nf1 Qbc3 Bd5 Qb3 Ne2 Nc4 Qa5
5r2/4QQ1n/2k2q2/3b1n2/1PN1bbQR/1nqQ1R1q/1bK1NBnQ/2N4N w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Kf2 h5 Bg2 a5 Ke1 f4 Bh3 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 e4 Kd7 h4 g5 b4 c5 d4 f2+ Kd2 f1B b6 a4 f6 g3 h5 f3 f7 c4 h6 f2 b7 a3 e5 c3+ Kc2 g2 d6 a2 d5 g4 h7 g3 Nd2 Nh6 Ne2 g1Q Nb3 g2 Rh4 Qb6 e6+ Kd8 d7 Kc7 e7 Qf6 d6+ Kc6 e8N Bg7 d8Q Nf5 f8Q Be6 d7 Qh1 Ng3 g1B Qde7 Bg2 d8Q f1N Q8d3 Be3 Qff7 Bed5 Nd6 Bge4 Nc4 Bf4 Qg4 Nd7 b8Q Nf8 Be3 Qh3 Nh1 Rg8 h8N Nh7 Bb6 Rf8 Ng6 Bh8 Rc1 a1Q Bf2 Qa3 Ra1 Bg7 Nc1 N1e3+ Kb1 Ng2 Kc2 Bfh6 Qh2 Bf4 Nb3 Bh8 Re1 Qa1 Re3 Qe1 Nc1 Qd2+ Kb3 c2 Rf3 Qe1 Na2 c1N+ Kc2 Nb3 Nc1 Be5 Nf4 Qc3+ Kd1 Bg7 Nfe2 Bh6 Ne3 Bhf4 Nc4 Qa1 Kc2 Bb2 Na2 Qe1 Nac1 Qec3+
2r5/2Q2BN1/QBn2q2/R1b1n1b1/1bBqp1RP/2kn2BR/6BR/1Kr3q1 w - - 0 1 illegal: No possible last move, all moves rejected
bQR2N2/1R1R1rqn/r3q2Q/4P1RQ/nr2QB2/3Kn2B/3Q1bp1/1k2b3 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 gxf5 Ne7 Nc3 Ng8 Ne4 h6 Nf2 h5 Ng4 hxg4 d4 Kd7 Kd2 Kd6 b4 g5 h4 c5 e4 a5 b6 a4 f6 c4 b7 g3 b5 g2 h5 g4 h6 c3+ Kd3 f3 h7 f2 f7 c2 b6 a3 Rh3 a2 Qe1 g3 Nf3 g1B Ng5 Nd7 b8R Qf6 b7 Nb6 Ne6 Ra6 Rh5 Na4 Bh3 f1N Rg5 g2 Rb1 a1Q Bf4+ Qe5 Ra8 c1R b8Q+ Rc7 Rb7 Bf2 Qd2 Bg7 Nf8 Nf6 Raa7 Rg8 h8Q Ne3 Qh5 Nh7 Ra8 Be6 Qe8 Bg4 Rc8 Bf3 Qc6+ Ke7 d6+ Kf6 d7+ Qe6 d8R Bh6 Re5 Rg4 d5 Bg5 d6 Bgh4 d7 Be1 Qc4 Bhf2 Rd5 Qae5 Qc6 Qg5 e5+ Kf5 Rd6 Bd5 Re8 Bf3 d8Q Bd5 Rd7 Bf3 Qh6 Qg7 Qdh4 Bd5 Ke2 Ke4 Q4h5 Qd6 Re6 Qe7 Rg6 Qe6 Rg5 Rh4 Qd6 Rg4 Qc2+ Kd4 Qe4+ Kc3 Rb6 Ba8 Rb7 Rb6 Qd1 Kb2 Kd3 Ka2 Qd2+ Kb1 Ng6 Rb4 f8Q Rc6 Qd6 Ra6 Nf8 Rg3 Qb8 Rf3 Bh2 Rf6 Bf4 Rf7
3Bb3/1Rr2BK1/6B1/PR1q3R/1bN1n1Rb/1qB1Q3/kn2pr1n/B2Q1q2 w - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 Bd7 cxd5 Bc8 b4 axb4 g4 h5 g5 g6 Na3 Be6 Nc4 Bd7 Ne3 Be6 fxg6 Bf5 Ng4 Bc8 f5 hxg4 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 b5 h4 b3 a4 Kb4 d4 c5 d6 b2 d5 b1Q g7 g3 a5 g2 g6 c4 h5 c3 d7 c2 f6 Kb3 f7 b4 d6 Ra7 h6 Nf6 g8R Ne4 g7 Rc7 h7 Na6 Rh5 Nac5 Nf3 g1N Bd2 Na4 Bd3 Nb2 Bc3 e6 Qe1 c1B Qe3 Qc2 Rb1 Ka2 Nd2 b3 Nc4 Nf3+ Kf4 e5+ Kf5 Qd1 Kg6 Qf1 Bc2 Be7 f8R Nh2 Rff5 Bh4 Rfg5 Bd2 Bd3 Qe7 d8Q Bd7 Rf5 Bc6 d7 Qf7+ Kh6 Qd5 Rfg5 Ng3 Bg6 e4 Rg4 Bb5 Rf8 Rg8 Rf7 Rf8 h8B Bc6 Re7 Rf2 g8B Bb5 Kg7 Ba4 Qa7 e3 B8f7 e2 Qe3 Ne4 Ree5 Qb7 Rb5 Qd5 Qf8 Be1 d8B Bd2 Rb7 Be8 Qd6 Be1 Bcf6 Bb4 Bc3 Na4 Qd7 b2 Rb5 Qb7 Qd1 Qd5 Rc1 b1Q Rb7 Qbd3 Rb1 Ba3 R1b5 Nb2 Kh7 Bc5 Bhe5 Bb4 Kg7 Na4 Ba1 Qb3 Bec3 Nb2
1r1QRq2/2n2B2/Rn1K2pq/1bR5/2N2R1r/1k2rb1R/N1N1b1PQ/1q3N2 w - - 0 1 legal: proof: b4 a5 f4 b5 a4 e5 h4 exf4 c4 d5 cxd5 g6 h5 Qd7 h6 Bg7 hxg7 Qd8 Ba3 Nd7 axb5 Ndf6 b6 Nd7 b5 Nb8 Bb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kc5 b7 f5 d4+ Kb6 d6 h5 d5 Kc5 b6 h4 d7 f3 d6 f2 Nf3 f4 Ra6 h3 Nbd2 h2 Ne1 b3 Nc2 f3 Bc4 f1B Bf7 f2 Qh5 Qf8 d8N b2 d7 b1Q Nc6 Be2 d8Q f1B Na5 Ne7 g8R Bcg4 Nac4 Bgf3 Ke6+ Nd5 e5 Nd7 b8R c6 b7 N7b6 Rc8 Rb8 Qh3 Rh5 Rh8 Rg5 Rh4 Rg3 Rf4 Kb5 Qh8 c5 Rc7 Na4 Rcc6 Nc7+ Kd7 Rh3 e6 Rh4 e7 Nb6+ Kd6 Rh3 Na5 c4 Rc5+ Ka4 Qe5 Bd5 Qh5 Re3 Qh8 Bdf3 Qh3 Qh6 e8R Qb4 Qh5 c3 Qhh4 Bb5 Qh5 Bfc4 Nf1 Bce2 Nc4+ Kb3 Qh3 Rc8 b8N Qa3 Ne1 c2 Nc6 c1Q Nc2 Rb8 N6b4 Qb1 Na2 Qb4 Rg1 h1R Qhh4 Rh2 Rh1 Qa3 Qg3 Rh4 Rh3 Qab2 Qh2 Qbg7 Ra7 Qg8 Ra6 Qgf8+
1rQ2RRb/RB3R1p/8/3bn1K1/QNQq4/N4bnQ/1Pq1R1rn/1q4k1 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 g5 a4 d5 axb5 c5 h4 gxh4 d4 Bg7 Be3 Kf8 cxd5 Bh6 d6 Ke8 d5 Bf8 Bd4 cxd4 Kd2 Kf7 f4 Kf6 g4 e5 b6 a5 d7 e4 b7 d3 Ke3 d2 d6 a4 Nf3 a3 Rh2 a2 Qa4 d1B Bg2 h3 Ne5 Nh6 Na3 Ra6 Nc6 Bg7 Nb4 Nc6 b8Q Ne5 Qbb5 Bf3 Qc4 Bb7 Bh1 Ra5 Re2 h2 Bg2 Bd5 g5+ Kf7 f6 Ke6 f7 Kf5 f8Q+ Kg4 f5 Kg3 f6 h1N f7 Kh2 Kf4 e3 g6 Nhg4 Rf1 Bf6 g7 a1Q g8R Qc1 Qg7 Rb5 f8R Qc2 Rff2 Qb6 d8Q Kg1 d7 Nh2 Qg4 Ng3 Qdc8 Qd8 Qh4 Rb8 Qh3 Qb6 Rg7 Rg8 d8R Qa7 Rgf7 Bh8 Rg7 Qd4+ Kg5 Bg4 R2f7 Bgf3 Rg6 Rg7 Rdd7 Rg8 Ra7 Rg7 Rd2 e2 Bh1 e1Q Re2 Bh5 Bf3 Qeb1 Bg2 Be6 Bd5 Bf3 Bb7 Bed5 Rd7 Rf7 Rgg8 Rf4 Rdf7 Rg4+ Kh6 Nh1 Kh5 Rg2+ Kh6 Ng3 Kg5 Qcd3 Ra6 Qb3 Ra7 Q3c2
bQ1b3b/7r/qQPnnRn1/6Q1/2br2QR/1pR4r/3KR1N1/1k1NQ2B w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 f6 h6 g4 Nc6 g5 Ra4 f5 Ra8 fxg7 Nb8 g6 Ra4 Bf4 Ra8 Bg5 hxg5 a4 d5 c4 Kd7 h4 Kc6 h5 e5 f6 b5 h6 d4 f7 e4 a5 g4 h7 b3 a6 d3 a7 e3 Rh6 e2 Rh5 b2 Kd2 e1B+ Ke3 b4 Ra3 b3 Rh6 g3 Nc3 b1B Qc1 g2 Ra4 d2 Ra2 d1N+ Ke2 Be7 f8R Bb7 Nf3 g1R Rh4 Qc8 Bg2 Na6 Bh1 Nc7 Rf6+ Ne6 Qe3 Nf2 Nd1 Bd2 Ne1+ Ne4 Ng2 Bd8 Rc2 Rb8 a8Q Bc3 Qa7 Ne7 g8Q Ba8 g7 Qa6 Rd2 Nd6 Qb6+ Kd7 Ra2 Ng6 c6+ Ke7 c7 Rb7 Qd2 Bd3+ Ke3 Ra7 c5 Bc4 c8R Rf1 Qe2 Rf4 Qe1 Rd4 Re2 Kd7 Qf8 Ba1 g8Q Rc7 Qh6 Bb2 Qa7 Kc6 Qg5 Kb5 Qb6+ Ka4 Qg4 Ka3 Qg5 Rg4 Kd2 Ka2 Qg7 Kb1 Qd7 Rf8 h8Q Rg3 Qg8 Rh3 Qdb5 Rcf7 Qb8 Rd7 Q5b6 Rff7 Qg4 Rh7 Qg7 Nh8 Q7g5 Ng6 c6 Bc7 Rcf8 Bd8 Rf3 Bg7 Rc3 Bh8 Rf4 Rdf7 Rff3 Rf4 Rff2 Re4 Rf6 Rd4+
Q3R1rb/1R2Q2P/p1k1r2Q/n2N2n1/NBnbR3/1QQ5/q1n3br/3R1K2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 Kd7 h4 e5 b4 c5 d6 a6 h5 c4 f6 c3 f7 c2 b6 g3 g6 e4 h6 g2 b7 f3 b5 e3 b6 e2 h7 Be7 f8Q Bf6 g7 Bg5 d5 Ne7 g8Q Bh6 Qgg7 Nc6 b8R Nb4 b7 Rg8 Rh4 Qa5 Nc3 Qa2 Bd2 c1R Re4 Rc2 Nh3 g1B Na4 Bd4 Nf4 Ra7 Qh8 Nec6 Bc3 Rb2 Qb3 Na5 Rd1 Bhg7 Ra8 Rd2 b8R Bb7 Qf6 Bc6 Qh6 Rb7 Rbe8 Rb6 Ra7+ Bb7 Ng2 Bgf6 Ne3 Nc2+ Kf2 e1N+ Kf1 f2 Bb4 Bd8 Qe5 Nf3 Qef6 Ng5 Qf3 Kc8 d7+ Kc7 d6+ Kc6 Nd5 B8f6 d8Q Bh8 Qe7 Ba8 Qfe3 Re2 Rb7 Rd2 Kg2 f1N+ Kg1 Rh2 d7+ Rg6 d8Q Nd2 Qb8 Ndc4 Kf1 Re6 Qec3 Rb5 Nf4 Rf5 Qa7 Rf8 Qb8 Rg8 Nd5 Bf2 Qbd8 Bfd4 Re5 Be3 Nf6 Rh5 Ra7 Bd4 Rd7 Bb7 Qa8 Rh2 Re3 Kb5 Rc7 Bh1 Re4 Bf3 Rb7+ Kc6 Nd5 Bg2+
3nKN1k/4b2r/B2BB3/Q2Q1QR1/b1Qp2B1/rPB5/3rqNq1/n4q1r w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 g4 h5 g5 g6 Ra3 Qb6 Rg3 Qd8 fxg6 Na6 f5 Nb8 Rg4 hxg4 Ke2 a5 Kd3 e5 Kc4 g3 Kd5 g2 h4 d6 c4 a4 h5 d3 b3 d2 c5 e4 b6 e3 g7 Kf7 h6 e2 b7 e1Q h7 a3 g6+ Kf6 c6 a2 c7 a1R Bb2+ Kg5 f6 Qd7 f7 R8a3 Nh3+ Kh6 Bc3 g1Q Ba6 Qgf2 Rg1 Qd8 Rg5 Qee8 Nf4 R1a2 Ne6 Bd7 c8B Nc6 b8B Be7 f8Q Rb2 Qf5 Nd4 Nf8 Nc2 Qe1 d1R+ Nd2 Ba4 Ke6 d5 Bd6 d4 Ne4 Qf1 Nf2 Qeb5 Kf7 Na1 Bd7 Qda5 Ke8 Rbd2 Qee4 Qb7 Qed5 Qab5 Qc4 Qbg2 Qcd5 Bf6 Qc4 Ne7 g8B Kg7 Be6 Nc6 Qcd5 Kh6 g7 Be7 g8Q Qfe2 Qgf7 Rh1 Bdc8 Qbd3 Qa5 Qc4 Qfd5 Qef1 Qff5 Qce2 Qc4 Rg8 Bcd7 Rg7 h8Q+ Rh7 Qhe5 Qfe1 Qed5 Q1f1 Rh5+ Kg7 Rg5+ Kh8 Qh3 Rda2 Bg4 Rd2 Bde6 Bb5 Qhd3 Ba4 Q3f5 Nd8+
R2bK3/1k5n/2nbN3/1B1qPQQN/2qnQ3/8/prNqn2N/RrQ2Q2 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b3 f5 Ba3 h6 Bd6 f3 Be7 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kd7 e4 Kc8 h4 a5 d4 c5 f6 g6 d6 g4 b6 g5 f7 c4 h5 a4 b4 a3 b5 a2 d7+ Kb7 d5 c3 e5 c2 h6 c1B d6 Be7 f8Q Ra3 h7 Ra5 Qf5 Bd2 Na3 Qc7 d8Q Ra8 d7 Qc6 Qc1 Ba5 Nc2 Nf6 Rh2 Rf8 h8N Bd6 Ng6 Qd5 Rh8 Nh7 Qe7 Nc6 d8N+ Kb8 b7 Bb6+ Ke1 f2+ Ke2 g3 Nf3 g2 Nh2 g4 Ne6 g3 Qeg5 Bd8 Qe4 g1Q Kf3 g2 Kg4 f3 Kh5 Rf4 Qef5 Rb4 Ngf4 Rb1 Kg6 Ka7 Kf7 Rb8 Bd3 f1Q Ke8 Qe3 Nh5 g1N Be2 Qed3 b6+ Ka6 Rg8 f2 Qe4 Nf3 Rf8 Ra8 b8Q Nfd4 b7 Qd1 Qc8 f1N Qd7 Ng3 b8Q Q3c4 Qbc8+ Kb6 Qf7 Rb8 Qf1 Qd2 Qd7 Ka6 Qdf7 R8b2 Q7f5 Kb7 Bd3 Qcc5 Bb5 Nge2 Kd7 B8e7 Ra8 Bd8 Ke8 Qcc4
2N3r1/1Bn3Bn/p1rb2nr/2RB3q/1PQQ4/r2B2b1/R1n2B2/1k1K2QQ w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 g4 Bf5 Nc3 Bc2 Ne4 Bb3 Ng3 f3 Nh5 Bc2 Nf4 gxf4 h3 Bf5 g5 Bg4 hxg4 Ba3 Rh5 Bb4 Rh1 Bf8 e4 Ke7 d4 Kd6 b4 c5 g6 h5 g7 f5 g5 c4 b6 f2+ Ke2 f3+ Kd2 h4 g6 h3 b7 h2 Nh3 f4 Ng5 Qa5 Bb2 Nc6 Ra2 Nce7 Bd3 Nf6 g8Q f1R g7 f2 Qa1 Rb1 Rc1 f1N+ Kd1 h1R Qh7 a6 g8B Rc8 b8Q+ Rc7 Qb5 f3 Bf7 c3 Qc4 f2 Be6 Rg1 Qh1 Rc6 Bf7 Rh6 e5+ Kc7 d6+ Kb6 e6 Ng6 d5 Nh7 d7 Bd6 e7 c2+ Ke2 Rg4 e8B Ne3 Ne4 f1N Bg7 Rb3 Bg8 Bg3 d6 Nd5 d8Q+ Nc7 d7 Ra3 Nd6 Qh5 Bd5 Ne3 Qdf6 Rg5+ Kd2 Rg4 d8B Rg5 Qf2 Rg4 Bh4 Rg5 Rd1 c1B+ Ke1 Bb2 Rc1 Bbe5 Bd7 Rg4 Bc8 Bef4 Ke2 Be5 Qff1 Nc2 Bb7 Bef4 Kd1 Be5 Nf5 Bd6 Ne7 Ne1 Rc3 Nc2 Qe2 Rg5 Qf4 Rg4 Rc5 Rg5 Qfd4 Rg4 Rc4+ Kb5 Nc8 Ka4 Qdg1 Kb3 Qad4 Bge5 Bf2 Bg3 Ra1 Rg5 Rc3+ Kb2 Ra2+ Kb1 Rc5 Re5 Qeg4 Re8 Qc4 Rf8 Qd4 Rg8 Qc4 Qe5 Qgd4 Qh5+
6Kb/1r2qRq1/1q4N1/4P1R1/k2rRqb1/1R2Nq2/2Nr1p1R/1QB1Q1Nn w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Ra5 f4 Bh3 Nc6 Ra4 Nce7 Ra1 Nf5 gxf5 Nh6 Bg4 hxg4 Qc2 Ng8 Qa4 Kd7 Qd1 Ke8 Kf2 Kd7 b4 c5 d4 g5 e4 a5 h4 a4 f6 a3 b6 c4 h5 c3 b5 a2 b7 c2 b8R Ra3 h6 Ra8 h7 Qe7 e5 Ra4 b6 Ra8 b7 Nh6 d6 Kc6 d5+ Kb5 f7 Rg8 h8N Rg7 d7 Nf5 d8N Ka4 d6 Ng3 d7 Ra5 Ng6 Rd5 Na3 Rd4 Rb1 a1R Nc4 Ra2 Rh2 Rb2 Nc6 Nh1+ Kf1 f2 Kg2 g3 Kf3 f1Q+ Kg4 g2 Kf5 g4 Qe1 g3 Ne3 f3 Nb4 Ra2 Rb2 Rh7 Rb3 Bg7 f8R Bh8 Rf6 Qe2 Rf7 f2 Ra8+ Qa6 b8Q Qa5 Bd2 c1Q Nbc2 Qd1 Bc1 Qf3+ Nf4 Qa7 Kg6 Rb2 d8R Bg4 Rg8 Qa5 Nb4 Rbd2 Nbc2 Rg7+ Kh6 Qa6+ Ng6 Qaa7 Ne2 g1Q Qb7 Qf1 Ng1 g2 Rac8 Qb5 Rc4+ Qbb4 Qe4 Qb6 Qd3 Rd5 Re4 Rd8 Nd4 Rd5 Qb1 Rd6 Ndc2 R6d4 Rgf8 Qc4 Rf5 Qcf7 Rg5 Q7f4 Rf7 Qed8 Rf6 Rb7 Rf7 Qe8 Kh7 Qe7 Ne2 g1Q Kg8 Qgg3 Ng1 Qh4 Nc4 Qh6 N4e3 Qg7+
b4qr1/1nnK1k1P/2n1Rn2/QB1N4/3R2R1/np6/RN1N2qR/N1bQ1b2 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 Nd7 g4 Nb8 b4 axb4 f6 Kd7 f7 Ra5 Ba3 Ra6 Bc1 Ra8 f4 b5 g5 h6 f5 Nf6 Bb2 Ng8 Be5 Ra4 Bf4 Ra6 Be3 Rf6 gxf6 Bb7 Bf4 Bc8 Bg5 hxg5 Ke2 e5 Ke3 c5 Ke4 g6 h4 b3 d4 g4 a4 c4 a5 c3 h5 b2 h6 c2 h7 c1N d6 g5 Kd5 b4 a6 b3 a7 e4 a8N g3 Nd2 b1B Nc4 e3 Nc7 g4 Nb2 g2 Rh2 e2 Ra2 e1N Bb5+ Nc6 Nf3 g1N Nd2 Be7 f8R g3 f7 g2 f6 Bf5 Re8 Bd3 f8R Nge2 f7 Bg5 Re6 g1Q Kc5 Qh1 d5 Nf6 Rg8 Nd4 f8R Be3 Rg4 Bf1 Rfg8 Bg5 Rgh4 Bh6 Rgg4 Bb7 Kb6 Qc8 Kc5 Kd8 d7 Rg8 Kd6 Ncd3 Ra1 Ndc2 Ra2 Qg2 Rd4 Nf4 Rg4 Rg6 Na6 Na3 Nb4 Bg5 Nc2 Rg8 Na1 Ba8 Kc5 Kc7 d8N Kd7 d6 Ned3+ Kb6 Ne5 Kc5 Nf7 Kb6 N4d5+ Kc5 Ne7 Kb6 Ke8 d7+ Kf8 Kc5 Nd6 Kb6 Na7 Nc6 Kf7 d8Q Nb7 Nb4 Nac6 Nd5 Bf4 Qc7 Qf8 Qd8 Be3 Kc7 Bg5 Nf3 Bc1 Nd2 Nf5 Kc8 Nfd6+ Kc7 Nde8+ Kc8 Ne4 Qa5 Nc7+ Kd7 Nf6+
1QNN2nq/3QNp2/1Q2bR1Q/1rbq4/3B1P2/R1nQ3b/6q1/KqqNk3 w - - 0 1 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 exd5 Bh3 d4 Bh6 d6 Kf8 d5 Kg7 c5 Bc8 h3 Kf6 h4 Ra6 d7 Rd6 cxd6 gxh4 Ne2 Bg7 Ng1 Bf8 Kd2 Kf5 Kc3 Ke4 f4 e5 b4 c5 Kb2 h5 g4 a4 b6 h3 b5 h2 g5 h4 b7 h3 g6 c4 b6 Na6 b8Q Nb4 g7 Rh6 b7 Na2 Ne2 Kf3 Nd2+ Kf2 Nc3 e4 Qh5 e3 Nd1+ Ke1 Ne4 e2 Be3 Nc3 Ra3 Re6 Qg6 Re5 Ka1 Qg5 d8Q Be6 d7 Bc5 d6 Qg2 Rg1 h1B Qh6 h2 Bd4 Rf5 Qdc7 Rd5 d8N Bh3 Rb3 a3 d7 a2 Nd6 Re5 Qa7 Qd5 b8Q Bf3 Qcc8 h1Q Rb6 Bfg4 Rg3 Be6 Qcb7 Qh2 Nc8 Qhg2 Ra6 Rf5 Qab6 Rh5 Rg6 Re5 Ra3 Rg5 Kb2 a1Q+ Kc2 Nb5 Nc6 Rg3 d8N c3 Be5 Nf6 Nb2 Kf2 g8Q e1Q N6e7 Qee4+ Bd3 Rf3 Qgh8 Ng8 Qd7 Qf5 Nd1+ Ke1+ Nf2 Re3 Q8h7 Re4 Bh8 Rc4 Kb3 c2 Nd1 c1Q Bb1 Qad4 Bg7 Nc3 Bh8 Ne2 Ka2 Nc3+ Ka1 Qfc2 Be5 Rb4 Bf6 Rb5 Bh8 Qde3 Bd4 Qed3 Rf6 Qdg6 Qh5 Qh6 Qd3 Qh8 Qh6 Q2xb1+
2B3q1/PR2bR1q/3k4/Qn3p1q/1r4Qq/n1Q2r1R/n1KN4/QRQ1B1r1 w - - 0 1 legal: proof: f4 e5 fxe5 a5 b4 axb4 g4 d5 c4 f6 cxd5 h6 g5 Bg4 g6 Kd7 Nc3 Be6 Ne4 Bf7 Ng5 hxg5 gxf7 g4 h4 b5 a4 g5 d4 c5 Kd2 f5 e4 g3 e6+ Ke7 e5 b3 h5 b2 a5 b1R a6 b4 h6 c4 h7 g4 a7 b3 Rh3 g2 Nf3 b2 Kc2 g1Q Nd2 g3 Qg4 c3 Ba6 Nf6 Bc8 Rg8 h8Q g2 Qh6 Qh2 Qhg7 Qe8 d6+ Kd8 d5 g1Q d7 Ke7 d8R Nc6 Rd6 Na5 Rb6 Ne4 Rb7+ Qd7 Qh6 Nd6 Qh8 Nb5 d6+ Kd8 Qf6+ Be7 f8R+ Qe8 d7 Rb8 Qh6 Nc4 Rf7 Qgg3 Qhf4 Qh4 Rh7 Qeh5 Kd1 Na5 Nb3 Qe8 Qgg5 Nc7 Rg3 Bf6 Rf7 Qf2 Rb5 Qb6 Rh3 Qh7 Qg1 Rg2 Qg4 Rg3 Rb4 c2+ Kd2 Nd5 e7+ Kc7 e6 Qeg8 e8Q Rf3 e7 Nc3 Qd8+ Kc6 e8Q Kd5 Qge3 Kc6 Kd3 Nc4 Bd2 Rg1 Qe5 Na2 Qde8 Bg5 Rc1 b1N Qa1 Rb7 Qd8 Be7 Rb5 Nba3 Rb1 Rff1 Be1 c1Q Qgg5 Qc5 Qa5 Qd1+ Qad2 Rb6 d8Q Qdh5 Qg4 Rf3 Qc1 Rb8 Qa5 Kd6 Nd2 Qe5 Bf2 Qf6 Be1 Qfh4 R5b2 Rb4 Rb3 Ra4 Rb7 Nb5 Kc2 Rb4 Qec3 Nca3+
3Q1b1r/1rn2RK1/2Q1Br2/1R2nr1R/Q4NRp/1Q2Pb1b/1Q6/2r1knB1 w - - 0 1 legal: proof: h4 e5 g4 d5 f4 exf4 c4 b5 cxd5 g5 a4 Qd7 axb5 Qe6 Na3 Be7 h5 Qg6 Nc2 Ba3 hxg6 Be7 Nb4 Bf8 Nd3 f3 Nf4 gxf4 g5 Bh6 Ra2 Bg7 Ra1 Bf8 Kf2 Kd7 b4 Kd6 d4 h5 g7 c5 g6 f5 b6 a5 b7 a4 b5 a3 b6 a2 Bh3 c4 Be3 c3 Qa4 c2 Rf1 Nd7 b8Q+ Ke7 b7 Kf6 d6 Kg5 d5 Ne7 g8R Kh4 g7 Ne5 d7 a1R d8Q c1R d6 Ra7 Qdc7 Nd5 Qcc6 Nc7 d7 Rab1 Bc5 Rb5 Bd4 Rd5 Bc5 Rd6 d8Q+ Rf6 Bg4+ Kg5 Nh3+ Kh4 Qd2 Be6 Qb2 Bd5 Qd8 Be4 b8R Rb7 Ra8 Bd5 Ra5 Be4 Rb5 Bd5 Kg1 f2+ Kh2 f3 Nf4 Be4 Re1 f1B Bg1 f2 e3 Bh3 Rf1 Kg5 Kg3 Bf3 Rd1 f1R Rd7 Kh6 Kh4 Rf2 Ne2 f4 Rf7 Kg6 Be6 Rff1 Bb3 Kf5 Rh2 Bfg4 Rh1 f3 Nf4 f2 Rh2 Bf3 Bc4 Bd5 Rh1 Ke4 Kg5 Kf3 Ba2 Be4 Be6 Rc5 Rh2 Rfc1 Rh1 f1N Rh2 Bf5 Rh4 Bh3 Rg4 Rh7 Rh8 h4 g8Q Rhh6 Rhh7 Rd5 Rhg7 Rh8 Rh7 Bc2 Rh5 Bd1 Qh7 Be2 Qhc2 Bd1 Qcb3 Be2 Bh2 Kf2 Bg1+ Ke1 Rb4 Bf3 Rb5 Rg6+ Kf5 Rg5+ Kf6 Rd6 Qcc2 Ra6 Qc6 Nd3 Qcd5 Rd6 Qc6 Rf5+ Kg6 Be7 Kg7 Ne5 Bd7 Rdf6 Be6 Bf8+
B2Q1Q2/q6k/1Q2Q1q1/b6n/1R1bQ2r/B2B1NPN/n1b1B1pb/n1n1K3 w - - 0 1 legal: proof: a4 h5 b4 b5 e4 d5 g3 a5 Ra2 h4 Ra3 h3 axb5 c5 Re3 d4 Re2 g5 f4 Ra7 Rg2 hxg2 fxg5 Rd7 d3 Rd5 exd5 c4 Bd2 cxd3 Be3 Bh3 Bc1 Bc8 h4 f5 c4 Kf7 c5 Kg6 b6 e5 c6 e4 b5 d2+ Kf2 f4 c7 d3 h5+ Kh7 d6 a4 b7 e3+ Kf3 a3 b6 a2 d7 a1B h6 e2 Kf2 f3 Qc2 d1N+ Ke1 Nf6 Ba3 Qe7 d8Q Nh5 Nh3 Bf5 c8B Na6 b8Q Ne3 b7 Nc5 Qa8 Bd4 b8Q Qa7 Qe4 Nb3 Qa2 Bfc5 Qbb6 Nc1 Qae6 Bg6 Ba6 d2+ Kf2 d1N+ Ke1 Bf5 Nd2 Nc3 Bd3 N3a2 Rg1 Nc4 Qf8 Na5 Qfd8 Nab3 Rh1 Re8 Rh2 Na1 g6+ Kh8 g7+ Kh7 Rh1 Bg1 Rh2 Bcd4 Rh1 Bh2 g8B+ Kh8 Bf7 Kh7 Rg1 Rf8 Be8 Rg8 Bc6 Rg4 Ba8 Rh4 Qg5 Kh8 h7 Bg6 Qgd8+ Kg7 Nc4 Kh6 Ne5 f2+ Kd2 Kg7 Nf3 e1B+ Kd1 Bec3 Bfe2 Ba5 Rf1 Kh6 Re1 f1Q h8Q+ Qh7 Qhf6 Qa7 Qdf8+ Kh7 Qf6d8 Qg1 Rf1 Nb4 Ke1 Nba2+ Nd2 Qe3 Rf5 Qg5 Rb5 Bf5 Rb4 Qg4 Nf3 Qg6 Qee8 Bd7 Q8e5 Ba4 Qee6 Bc2
1QrRB1rB/b2B4/nr1Pqn2/3rBNN1/2p2Nn1/2q3K1/3N1BQ1/k1n5 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b4 f5 Na3 h5 Nb1 f3 Ra6 f4 Rg6 Bf5 gxf5 Bc5 Rg3 Bf8 Rg4 hxg4 Kf2 Kf7 d4 Kf6 h4 c5 e4 a5 h5 g5 h6 c4 d6 a4 d7 a3 b6 a2 b5 a1R h7 R1a5 b7 Bc5 b6 Na6 b8Q Qe7 d8N Qe6 b7 Ba7 Qc2 Rd5 Nh3 g3+ Kg1 f2+ Kg2 g4 e5+ Ke7 Be3 Nf6 Nf7 Rg8 h8B Rc8 Be2 f1R Nd2 Rb1 Rd1 Rb6 Nd6 Kd7 Bf1 Kc6 Ng5 Rg8 Bf2 f3+ Kh1 g2+ Kh2 g1N Kg3 Nh3 Qb2 Nf4 Bh3 Nd3 Qc2 Nc1 Qb2 Qd7 e6 Rc8 e7 Qe6 Ndf7 Rg8 Nh6 Rc8 Qa2 Kb5 e8B+ Kb4 Qc2 Ka3 Qe4 Nd7 f6 Ka2 f7 Nf6 f8N Kb2 Ng6 Ka1 Bb5 Rg8 Nf5 Rc8 Nf4 Rg8 Bg1 f2 Qg2 f1Q Be3 Qe1+ Bf2 Q1e5 Be8 Qe1 Qd6 Rc8 b8B Q1e5 Qf8 Qe1 Be5 Qe3+ Kh4 g3 Qd6 Qc3 Qb8 Ra5 d5 Rab5 Qf3 g2 Kg3 g1N Bg4 Qb2 Qg2 Nh3 d6 Rd5 Re1 Ng1 Rf1 Nf3 Rh1 Qc3 Rh7 Qd4 Rd7 Nh2 Rd8 Qb2 Bd1 Nhg4 Bda4 Qd4 Bad7 Qc3+
1Q3QBQ/1n4PN/r4N1r/n4R1b/1Rb1QrnQ/2KN2n1/4p1Nb/4r2k w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 g4 Bb7 h4 Bc8 b3 Bd7 h5 Nc6 Ba3 Nb8 Bd6 Bc8 Bf4 gxf4 g5 Qd7 Qf3 Qe6 Qd1 Qg6 hxg6 Bd7 Bh3 Be6 Bf1 Bc8 d4 Kd7 Kd2 Kd6 g7 c5 b6 e5 b7 a5 b4 h5 g6 c4 f6 a4 b5 h4 b6 h3 f7 e3+ Kc2 e2 Kb2 e1R Kc2 a3 Qg4 e4 Qf3 a2 Na3 e3 Rb1 a1R Rb4 c3 Bc4 h2 Ne2 Ra4 Rf1 h1N Qe4 f3 Nc1 f2 Nd3 Nh6 g8N Nd7 g7 Ng3 Nf6 Nc5 b8N Rh7 b7 Ng4 Nbd7 Rh6 Nh7 Be7 f8Q Ra6 Rh1 f1B Rh5 Be2 Ndf6 Be6 Rg5 Bf7 Bb3 Bh5 Rf5 Rf1 Qh8 Rae1 Bc4 Bd8 b8Q+ Bc7 Ba2 Nb7 Kb3 c2 Kc3 c1N Nc2 Rd1 Nce1 Nb3 Ng2 N3a5 Bb3 Rde1 Bc4 Bf7 Ba2 Be6 Bb3 Rf4 Bc4 Ke7 d6+ Kf7 d5 Kg6 d7 Bf3 d8Q e2 d6 Bd5 Bb3 Bc4 d7 Bd6 Ng5 Bc7 Ng8 Kh5 Qf8 Bd6 d8Q Bc7 Ne3 Kh4 Nh7+ Kh3 Ng2 Kh2 Ngf6 Kh1 Qde7 Nf2 Qed8 Bh5 Qdd4 Ng4 Qf2 Bb5 Bg8 Bc4 Qfd4 Bb6 Qdd8 Bg1 Qdd4 Bh2 Qf2 Nf1 Qh4 Ng3
4B3/b4r1n/q3pQ2/1np4r/Q1P1nR2/1BN2KbN/1B2r2B/NB1bkN2 w - - 0 1 legal: proof: d4 e5 dxe5 Ke7 a4 b5 axb5 Nf6 e4 Ne8 e6 Kf6 e7 Kg6 e5 Nf6 e6 Ng8 Ra5 Kf5 Ra1 Kf6 f4 fxe6 Qd6 g5 Qd1 h5 fxg5+ Kf7 b4 Nc6 g4 Rh7 g6+ Kg7 g5 Nb8 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 a5 e8B d5 h4 c6 h5 a4 b6 a3 b5 a2 b7 a1R b6 d4 Bc4 d3 Nh3 d2 Rf1 Bd6 Bb2+ Nf6 c3 Rh7 Qa4 Na6 b8N Ra7 b7 Nc5 Nd7 Qa5 b8B d1N+ Kg2 g3 Nd2 Nce4 Nc5 Nef2 Bc7 Ba6 Ncb3 N2e4 Rf3 Bb5 Nf1 Qa6 Rf5 Nc5 Kf3 g2 Bd5 g1B Bb8 Rb1 Na1 Rf7 Bb3 Rc1 Bc7 Rc2 Bb8 Bd3 c4 Nc3 Bc7 Re2 h6+ Kf8 g7+ Ke7 g8B Nb5 g6 Bc2 g7 Bd1 Bb8 Rh8 h7 Bf2 Ba7 Bdg3 Rf4 Kd6 Bb6 Bd4 Ba7 Ke5 Bb6 Rd7 Bgf7 Re7 Bg6 Rf7 Bb1 Nce4 g8N Nf2 Bc1 N2e4 Ne7 Bc5 Nd5 Kd4 Ba7 Bb6 Nc3 Bc5 B1a2 Kd3 Bb2 Bd4 Nh2 Kd2 Nf1+ Ke1 Bb1 Be5 Bc5 Bb8 Bg1 c5 Bh2 Ba7 Rf5 Rg8 h8Q Rg5 Rf4 Nh7 Qf6 Rh5
1Q1Q1qR1/q4n1B/1pqrQ3/Qr4b1/1BNb4/B1KB4/P2p2kb/B4Rn1 w - - 0 1 legal: proof: d4 f5 b4 c5 dxc5 a5 e4 axb4 exf5 Nc6 f4 Nb8 g4 Kf7 f6 Ke6 Nd2 Kd5 f7 Kc6 Nb1 Ra5 Qd3 Ra4 Qd1 Ra8 f5 h6 Nd2 b6 Ndf3 Ba6 Ng5 Bd3 f6 Bf5 gxf5 hxg5 Be2 g4 Bd3 Qc8 Bf1 Qd8 Kd2 Kd5 c4+ Ke4 h4 g5 h5 e5 h6 d5 h7 d4 c6 b3 c5 g3 c7 d3 c8Q g2 c6 g4 c7 b2 Rh4 b1Q Rh3 g3 Qb7+ Nc6 c8B Nh6 Be2 Ra5 Qb3 Rb5 Qe6 Be7 f8B Nf7 Nf3 g1B Qa8 g2 Rg3 Bh2 Kc3 g1B Ba3 d2 Qa5 Nd4 Bd3+ Ke3 Rg4 Kf2 Rg8 e4 Ne5 e3 Nc4 e2 Bb7 e1Q Bbe4 Nf3 Bb4 N7e5 f7 Bg5 f6 Kg2 Bfd6 Qh4 f8Q Qh6 f7 Qe8 Bg6 Qc6 Qb8 Qf8 Ba3 Bf2 Bdb4 Ng1 Bgf5 Qf1 Re1 Qg7 f8Q Qa7 Qfd8 Bc5 Bg6 Qf8 Rf1 Bf2 Rg7 Rg8 h8B Nf7 Bh7 Bc5 Rg6 Be3 Be5 Rh8 Rg8 Bf2 Bhg6 Rh6 Bh7 Bd4+ Kc2 Bf2 Ba1 Rf6 Kc3 Rg6 Qe1 Rd6 Qe6 Bd4+
1R2b1k1/2n2p2/1r2QQN1/1RKRQP1R/1Q6/1r3nbn/1p1QBq1q/q5B1 w - - 0 1 legal: proof: d4 c5 a4 a5 g4 h5 gxh5 e5 dxe5 c4 b4 axb4 Nd2 b5 Nb3 cxb3 axb5 Qc7 Bh6 Qa5 Bc1 Qd8 Kd2 g5 Kd3 d5 Kd4 g4 c4 b2 h4 b1Q e4 g3 f4 g2 e6 b3 f5 b2 e7 Nh6 e5 Bb7 c5 Qd6 b6 Ra6 c6 Ba8 b7 Qg6 c7 Qa2 c8R+ Kd7 e8R Rh7 e6+ Kd6 e7 Rc6 Qd2 Qa6 Ne2 g1N Nf4 Nh3 Be2 Qg3 Ra5 Rb6 Ng6 Qa7 Rb5 Qh2 Rcc5 Ng4 h6 Na6 b8Q+ Nc7 h5 Bc6 Rc8 Qa1 e8Q Ne5 Qb7 Be7 Rb8 Bh4 Qec8 Rh8 h7 Be8 h6 Rf8 h8Q Bg3 h7 Nf3+ Kd3 d4 Kc4 d3 Qf6+ Ne6 h8Q Qf2 Qa5 d2 Rh2 d1Q Be3 Qdg1 Qd2+ Nd4 Rh1 Qgh2 Qe4 Rg8 Qa6 Kd7 Qhh4 Rh8 Qee5 Nc7 Qhe4 Rh4 Qa4 Rf4 Qab4 Rf3 Rd5+ Rd6 Bg5 Rb3 Kc5 Nf3+ Be3 Qfg1 Qg5 Nf2 Qa4 Qhg2 Rh5 Nh3 Qh8 Q1h2 Bg1 Qf2+ Qge3 Qh1 Qab4 Qhh2 Ne5+ Ke7 Qf6+ Kf8 Ng6+ Kg8 Qee6 Rb6 Qed4 Qfg2 Qde5 Qf2+
5k2/1b1qbBrB/nQ1Q2r1/Q1b1n2P/2B4b/K3pp2/1N3B2/BNQR1b2 w - - 0 1 legal: proof: f4 c5 e4 h5 b4 b5 g4 e5 gxh5 Nc6 a4 Nb8 axb5 Qg5 Ra3 Qd8 d4 cxd4 Re3 dxe3 fxe5 Rh6 Bb2 Rh7 Bc1 Rh8 h4 d5 c4 f5 b6 a5 h6 g5 h5 d4 b7 f4 e6 g4 h7 d3 b5 g3 e7 f3 c5 g2 e5 a4 c6 a3 b6 a2 c7 a1B Qa4+ Qd7 Kd1 d2 Kc2 Ra5 Kb3 d1B+ Ka3 Bc3 Bd2 Nh6 Be1 Na6 b8Q Be2 b7 Nc5 Bf2 Ng4 Nh3 g1B Nf4 Bc4 Nd3 Bg7 Nb2 Ba2 Bc4 Bh2 Rd1 Ra6 Qa5 Rg8 h8B Rg6 Qba7 Bf4 b8Q Be1 Q7b6 Bf6 Qd6 Bg3 Qbb6 Bb7 Bg7 Bgh4 c8Q+ Qd8 Bh8 R8g7 Qcc6+ Qd7 Qcc7 Ne6 Qcc6 Kf7 e8B+ Kg8 Qcc7 Be7 Bf7+ Kf8 Qcc5 Nc7 e6 Na6 Bg8 Ne5 Bh7 Bc3 Qcc6 Bd4 Qcc7 Ke8 Qc8+ Bd8 e7 Bb3 Qcc7 Bc2 Qc8 Bd3 Qcc7 Bf1 Qc8 Qe6 Qcc6+ Kf7 e8B+ Kf6 Qcc7 Ng4 Bd3 Be7 Qc1 Bc5+ Qbb4 Ba7 Nc4 Bc5 Qb8 Qd7 Qd6+ Kg5 Be2 Rf7 Ba1 Kh6 Nb2 Kg7 Bc4 Kf8 Qab6 Rfg7 Bef7 Ne5 Qa5 Bd4 Qbb6 Bc5+
3Q4/1N2B3/1bpnK1b1/1rp2Q2/R1QR3R/1Q3R2/bP1RrN2/kbrq2n1 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d6 a4 Be6 axb5 Bc8 c5 dxc5 h4 g5 hxg5 a5 Qg4 a4 Qf3 a3 Qd1 a2 Na3 Na6 Bd3 Nb8 Bb1 axb1B Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 g4 Kd4 f6 h5 f7 h4 b6 h3 g6 e6 b7 h2 g5 c6 g7 Bg6 Nb5+ Kd3 Ke5 Ne7 g8Q Nf5 f4 Rh6 Nd6 Ra3 Nh3 Bh5 g6 Ra2 g7 Ra5 Ra4 Be7 f8R Rb5 Qf1+ Kc2 d4 Kb1 d5 Bd7 Qc4 Bg6 Nf2 Rh8 Rd1 h1B Rd4 Be4 Qh7 Bde8 g8Q Bef7 Rd2 Qd7 Rd8 Bg5 Qh3 Rh5 Qhb3 Rh1 Qh7 Rg1 Rh8 Bd8 Qhh3 Rd1 Rh4 Bb6 Kf6 e5 Qhf1 Na6 b8R Ng3 f5 Nc7 Nb7 Ne2 d6 Ng1 Rd8 Bd3 Qh3 e4 Ke5 e3 f6 e2 Qf5 Be6 f7 Ne8 f8R Bc2 Rdd4 e1R+ Be3 Be4 Bg5 Rc1 Be7 Re2 Rf7 Qc8 d7 Nd6 Rf6 Bg8 Rf7 Qa8 Ke6 Qa5 Rc8 Qe1 d8Q Qd1 Rc7 Qc2 Rd7 Qd1 Rb4 Ka1 Rd2 Nc8 R7d4 Nd6 Ng4 Rh2 Nf2 Bb1 Ra4+ Ba2 Qg5 B8h7 Rf3 Bb1 Qh5 Bhg6 Qf5 Be4 Ng4 Re2 Nf2 Bb1+
rBQ4q/2pQ3R/1p1R1b2/rRn1R2B/n1P3BN/R2r2r1/1B4b1/2nK1k2 w - - 0 1 legal: proof: e4 e5 f4 a5 d4 f5 dxe5 Ba3 exf5 Bf8 b4 axb4 g4 h5 g5 g6 Nd2 Bc5 Ne4 Bd6 Nf2 Bf8 fxg6 Qf6 f5 Qd8 Ng4 hxg4 h4 Ke7 a4 d5 c4 g3 a5 g2 h5 b3 a6 b2 a7 b1R f6+ Ke6 f7 Kf5 e6 Ke4 h6 d4 h7 d3 g7 Rb6 g6 Bc5 f8R Rd6 e7 Rd5 e8B Qf6 Ra3 Qb2 Be3 Be7 Rf6 Na6 Nf3 g1N Rd6 Bf6 Bh3 Ne2 Bg4 Nc5 Nh4 Ne7 g8Q Nc1 g7 Be6 Qa4 d2+ Kd1 Nc8 Qd7 Nb6 Beh5 Nba4 Qgc8 Rg8 h8B Rf5 Rb3 Bd5 Rb5 Kd3 Re1 Rg5 Bd4 Bg2 Re5 Rf8 g8R Rf5 Rg6 Rg8 Rh6 Rg7 Bf3 Rg3 Bfg4 Qc3 Rh7 Qa1 Re8 Re5 Bb2+ Ke3 Bg7 Kf2 Bf8 Rg5 Re5 Kf1 Bh6 Rf5 Be3 Rg5 Kc2 d1R Bf2 Rb8 a8R Rdd3 Raa5 Ra8 Be3 Ne4 Ba7 b6 Bb8 Rf5 Ba3 Qd4 Bb2 Nec5 Ra7 Nc3 Ra3 N3a4 Re2 Qe5 Re3 Qe8 Re5 Qh8 Re8 Bd4 Rbb3 Na6 Re3 Ra5 Rb5 Bf6 Ree5 Rde3 Kd2 N6c5 Kd1 Rd3+
r2n4/QK1B1NBn/n1QBb1N1/1BN5/1qpP1B1q/2b1n2r/5pR1/Nk6 w - - 0 1 illegal: No possible last move
NN1r3R/1ppnQ3/r5rN/2r2n1k/2B5/1bq2NQB/1P1Q1b1Q/Nq3K2 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 d5 hxg5 Ra7 cxd5 Ra6 d3 Ra8 a4 Be6 Bd2 Bd7 Bb4 Bc8 Ra2 axb4 Ra3 bxa3 f4 Kf7 g4 e5 d4 h5 d6 a2 a5 a1R d5 e4 g6+ Kf6 g5+ Kg7 a6 e3 d7 e2 d6 h4 a7 h3 Nf3 h2 Nbd2 Nh6 f6+ Kg8 g7 Kf7 g8B+ Kg6 f5+ Kh5 f7 Bg7 f8Q Ra5 f6 Rf5 f7 Qe8 d8N Bc3 g6 Re5 g7 Qb5 d7 Bb4 Qc2 Kg4 Qe7 Bc3 f8N Qc5 Nf7 Nf5 d8Q Nd7 Bh3+ Kh5 Nh6 Bd4 Nb3 Qc3+ Qd2 Rb5 Na1 Rc5 Bc4 Bg1 g8Q Bd4 Rg1 h1R Qg3 Rh2 Qee5 Rg2 Rh1 Be3 Qh2 Rg6 Qde7 Rhg8 Qeg3 Ra6 Ne6 Rg6 Ned4 Bg1 Nc6 Bd4 Qe3 Rb8 Kf2 e1Q+ Kg2 Ra8 Nb8 Qb1 Qe7 Bf2 Re1 Nb6 Kf1 Bd7 Rd1 Ba4 Re1 Bd1 Re5 Nd7 Rd5 Nf8 Rd8 Nd7 Rh8 Bb3+ Kg2 Qe4 Kf1 Qec2 Nc6 Rd8 a8N Qe4 Nb8 Qb1+
B4q2/P2pB1B1/1q2K2B/NqbQB1N1/n2Nr1k1/5p1r/2NR2b1/1r4Qb w - - 0 1 illegal: Other
1R2q1b1/1pN1q2K/3Q1R1R/B1N5/r5q1/2b1rQb1/1pN1N1P1/1k1NRb1n w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 d5 cxd5 g6 b4 axb4 f6 Kd7 f7 Bg7 Ba3 Bh6 Bc1 Bf8 h4 Bg7 f4 Na6 f5 Bf8 f6 Nc5 Bd3 Ne6 Bc2 Ng5 Bf5+ gxf5 hxg5 Ra4 Ne2 Ra3 Ng1 Ra8 Ke2 Kd6 Ke3 Kc5 Kf4 Kd4 a4 Kd3 a5 h5 g6 c5 Kg5 e5 a6 c4 d6 c3 a7 c2 d7 h4 g7 e4 Kg6 f4 Nh3 e3 Re1 b3 Qf3 b2 Nc3 Bb4 f8R Qe7 d8N Be6 f7 Nh6 g8R Nf5 Nc6 Ng3 Ra6 Nh1 Ng1 h3 Nge2 h2 Ncd4 Rh3 Nd1 Bc3 Rb6 Rg3+ Kh7 Bb3 Rh6 Rh3 Qd5 f3 Qd6 f2 Rb8 f1B Rg6 Qe8 Rf6 Be6 f8N Bf7 Nfe6 Rf3 Ng3 e2 Nc5+ Kc4 Qf4 Re3 Qf3 Kb4 d3 Ka3 Bd2 c1B Nc2+ Ka2 d4 Kb1 d5 Qe7 d6 Qe8 d7 Qe7 Nf2 Qe8 Rd1 e1Q d8Q Qe2 Qd6 Qc4 Be1 Qg4 Ne2 Qe7 Rd4 B1d2 Rdf4 Be5 Re6 Bdc3 Rff6 Bg3 Nd1 Nf2 Rh8 h1Q Rb8 Qhh5 Re5 Nh1 Ree6 Bd4 Ba5 Bc3 Re8 Rd8 a8N Qe5 Nc7 Ra8 Rb8 Qeh5 Bb4 Ra4 Ba5 Qe5 Nd7 Qb5 Nc5 Qbe8 Ng1 Rd3 Re1 Re3 Ne2 Bg8+
2B1B2Q/k1rQr3/1n6/pnb1B2r/P5N1/np1NNB1r/KBn2R2/4n2N w - - 0 1 legal: proof: e4 d5 f4 e5 b4 c5 bxc5 Qf6 Nh3 dxe4 Ng1 e3 Qh5 e4 Qd1 Qe5 fxe5 Ke7 Nh3 Kd7 Ng1 Ke8 a4 f5 g3 f4 g4 Bf5 gxf5 Na6 Ra3 Nb8 Rd3 h5 Rd6 Ke7 Rg6 Ke8 Rg4 hxg4 h4 Kd7 d4 Kc6 c4 g5 h5 a5 e6 b5 h6 Kb7 c6+ Ka6 h7 f3 e7 e2 Kd2 e1N Kc3 g3 Kb2 g2 e8B e3 f6 f2 c7 b4 c8Q+ Ka7 f7 e2 c5 g4 c6 g3 d5 Nf6 c7 Nbd7 d6 Nf3 Rh2 e1N Na3 Nb6 d7 Nh5 d8N Nd4 Ne6 Nb5 Ka2 Nf6 Bb2 Ng4 Qdd7 Rb8 Be2 f1N Nc4 Nge3 Nf4 Bc5 f8N Nd2 Bf3 Rb7 N8g6 Nb1 Ngh3 g1R Rf2 g2 Nd3 N1a3 Nge5 Ne3c2 Ne3 Rh1 N5g4 g1R Qcd8 Rh2 c8B Rc7 Qf6 Rg3 Qc3 Rf8 h8B Rf7 Qg7 Rh1 Qg8 Re7 Bhe5 Rh2 Qh8 Rh1 Re2 Rh2 Nhf2 Rh5 Nh1 Rgh3 Rf2 b3+
2Bbbn2/2B2K2/2pR2P1/1Qrn3R/R1Rr1Bp1/1Q5N/2Rrk2p/bB5q w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 e6 b4 exf5 b5 Bb7 Na3 Ba6 Nb1 Bc8 h4 g5 hxg5 Qd7 g4 Qe7 g6 Qd8 g5 Nh6 Na3 Nd7 Nc2 Ng8 Ne3 Nb8 Ng4 fxg4 Kf2 Kd7 Kg3 Kd6 Kh4 Ke5 Kh5 Ke4 d4 a5 b4 f5 d6 a4 d5 f4 d7 f3 d6 f2 b6 c6 g7 h6 Kg6 h5 b7 a3 b5 h4 b6 a2 Nh3 Qe7 d8R Qd7 Bf4 Qe7 d7 Na6 b8Q Nb4 b7 Ra3 Qb3 Qc5 Kf7 Qb5 g6 Nf6 g8B Ra5 e3 Kf3 e4+ Qd3 e5 Be7 e6 Nh7 Re8 Nf8 d8R Rc5 Rd6 Bf6 e7 Nd5 Rc1 a1B Rc4 Qe3 Bd3 f1R Bb1 Rf2 Rhc1 Qd3 R1c2 Rd2 Red8 Bd7 e8R Qe3 Re5 Ke2 Rh5 Qf3 Ra4 Qh1 Re8+ Kf1 Ree4 Bd8 Rec4 Ke1 Qa7 Ke2 b8B Bdf6 Bc7 Bd8 Ng5 h3 Qab6 h2 Nh3 Bc8 Q6b5 Rh7+ Ke8 Rh8 Be6 Bd7+ Kf7 Rh7+ Kg8 Re7 Bf5 Re4 Be6 Rd4 Kg7 Be8 Bc8 Bd7 Kf7 Be8+
nR1qR1BB/1n1bp2R/B4n2/N1p1R3/b1b5/QR2p1Pr/K2Q2r1/5B1k w - - 0 1 legal: proof: c4 d5 cxd5 a5 d4 g5 b4 axb4 h4 f5 hxg5 Bg7 e4 Be5 Nd2 Bd6 e5 Ra4 exd6 Ra8 Ne4 fxe4 Kd2 Kd7 Kc2 h5 Kb2 c5 a4 b5 f4 e3 a5 b3 f5 b4 g6 h4 f6 h3 a6 h2 g3 Nh6 g7 Qa5 g8B Qb5 f7 Qe2+ Qd2 Qd3 f8Q Ng4 a7 Na6 Ne2 Nc7 Ra3 Nf6 Ka1 b2+ Ka2 b1N Bb2 Ba6 Rb3 Rh3 Nc1 Bc4 Qg7 Rf8 a8B Na3 Bb7 Nab5 Ba6 Rf7 Qf8 Na8 Qb8 Rf8 Qb6 Rf7 Qa5 Rfh7 Qa3 R7h5 Rg1 h1B Bc3 Be4 Rh1 Bf5 Bb2 Rh2 Ba1 Rg2 Rh2 Rg5 Rh7 Rh5 Bc3 Rh3 Ba1 Kd8 d7 Kc7 d8R Nd6 Re8 Nb7 d6+ Kc6 d7 Kd6 d8R+ Bd7 d5 Qd4 Rh6 Ke5 d6 Ke4 Rb8 Kf3 Rh7 Ba4 d7 Qd6 d8R Qd5 Rdc8 Qd8 Rh5 Bd7 Re5 Ba4 Be2+ Kf2 Rc6 Kg1 Bf1 Kh1 Bd4 Ng4 Rh6 Nf6 Rh7 Bd7 Kb1 Ba4 Rc3 Bd7 Nb3 Ba4 Na5 b3 Rd3 b2 Rb3 Bd7 Ka2 b1B+ Ka1 Bg6 Ka2 Bc2 Rg5 Ng4 Bh8 Nf6 Re5 Bcb5 Rb2 Bca4 Rb3 Bc4
6R1/1k4KR/n1NrQqp1/3Q1N1b/r2q1p2/1nN1N1rN/pP1b3B/2RR4 w - - 0 1 illegal: No possible last move, all moves rejected
3rq1Qq/p1R1Np1B/5B1B/n1K1nB2/rp1b1B2/1k4N1/2bQP3/1b1Q1Q2 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 b4 c5 a4 b6 a5 Be7 Ra4 Bd6 axb6 Be7 b5 Bf8 Rb4 cxb4 Kf2 Ke7 g4 Kd6 d4 h5 b7 f3 Ke3 f2 g6 h4 g7 h3 b6 h2 g5 Nc6 b8B+ Qc7 g6 Rh4 b7 Bd7 Nd2 Bg4 Bh3 f1Q Ngf3 Be6 Ne5 Na5 Ne4+ Ke7 d6+ Kd8 d5 Qg2 Kd4 Nh6 g8B Qf1 d7 Ke7 g7 Qc8 Bh7 Rh5 g8Q Ng4 Bh6 Bg7 Ng3 Qe8 Kc5 Bf5 d6+ Ke6 d8B Bc2 d7 Qf6 Rf1 Qh4 Bf6 h1B d8Q Bhe4 Q8d2 Bf5 Bd6 Rd8 Ng6 Ne5 b8Q Bb1 Ne7 Bh8 Bg2 Bfc2 Bge4 Rf5 Qc7 Rf3 Beg6 Ra3 Qc6 Qh3 Qf3 Ra4 Re1 Qh2 Qf1 Qc6+ Kd4 Qb5 Bhg5 Nec4 Be5 Qh6 Q1c1 Qg7 Bd3 Bb3 Bh6 Qe8 Qcc2 Qf6 Rc1 Qg7 Qcd1 Qgf8 Qg7 Qg8 Rc3 B3c2 Qg6+ Bf6 Be4 Qh8 Qg8 Ne3 Rc7 Nec4 Kc5 Bg7 Bef4 Ba1 Nc6 Ne5 Be7 Bb2 Bf6 Bd4+ Kb5 Kd6 Bd3 Kd5 Bdf5 Nd7 Ka6 Kc4 Ne7+ Kb3 Kb5 Nc4 Kc6 Na5+ Kd5 Bb2 Kd6 Ne5+ Kc5 Bd4+
2Rr2r1/2Q1KQ2/1bp5/nbrqR1Q1/8/2NRR1Pp/RN3p1Q/1Br2k1n w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bd6 Ba3 Bh3 axb5 Bf8 b6 Bg4 b5 Bc8 Bb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 d6 h5 d5 b3 e4+ Kb4 d7 h4 Ke6 b2 g6 f3 e5 f4 d6 c6 b7 h3 b6 Bg7 g3 f2 Nd2 Kc3 Ra2 b1R Ne2+ Kd3 Nc3+ Ke3 Be2 Rb5 Qg1 f3 Qh2 f1R Nc4+ Kd4 Nb2 Ke3 Bd3 Rh6 Bb1 Na6 b8R Rc1 b7 Nf6 Kf7 Ng4 e6 Bh8 e7 Bd4 g7 Rg6 g8Q Nf2 e8R+ Re5 Qh7 Rg8 Re1+ Kd2 Qf5 Nc5 Qh7 Qg5 d8Q Nb3 d7 Na5 Re3 Bb6 Qf6 Rc5 d8R+ Qd5+ R8e6 Qd3 R6e5 Be6+ Ke7 Bc4 Rd6 Bb5 Qhf7 Qd4 Qg5 Qd3 Qg1 Nh1 Qh2+ f2 Re8 Qd4 b8Q Qd3 Qc7 Rb8 Ne2 Ke1 Nc3+ Kf1 Rd4 Qe4 Rdd3 Qd5 Rf8 Rd8 Re8 Rd6 Rc8 Rdd8
2Kn2b1/6Np/3pBr1k/5Q2/1BRqB3/bNB1PBQ1/1p3q2/1QbQr2r w - - 0 1 legal: proof: b4 a5 h4 g5 a4 e5 g4 c5 bxc5 f5 d4 exd4 Ra3 Nc6 Rb3 Ne5 gxf5 g4 Rb2 Nf7 Rb4 Ng5 hxg5 axb4 Kd2 Kf7 Kd3 Kg7 Kc4 b5+ Kd5 g3 c4 b3 f4 b2 e3 d3 a5 g2 g6 b4 c6 b3 c7 d2 c5 Ra7 a6 Bd6 f6+ Kf8 f7 Kg7 f8B+ Kf6 c6 Qe7 g7 Kg6 f5+ Kg5 f6 Kg6 f7 Qd8 Nf3 g1B Be2 Bb7 c8Q Be5 Bb4 d6 Ke6 Beh2 f8Q Nh6 c7 Be5 Qb8 Qf6+ Kd7 Bgh2 c8B Nf7 Nh4+ Kh6 Bf3 Bd5+ Qb7 Ra8 a7 Nd8 Rf1 Qf4 Qf5 Rf8 g8Q Rf6 Qg3 Bg8 Rh1 Rb8 a8B Bd4 Qbb5 Bc5 Bae4 Rb6 Bc3 Ba3 Kc7 Rb8 Be6 Rb7+ Kc8 Rg7 Qde1 d1Q Nd2 b1R Qbe2 b2 Nb3 Qd4 Q2d1 Rg5 Qeg1 Rh5 B1d2 Ra1 Qgf1 Bg1 Qd3 Bf2 Q3b1 Be1 Rh2 Nc6 Bb4 Nd8 Bdc3 Bd2 Rg2 Bc1 Rd2 Qde5 Rd4 Qd5 Rc4 Qd4 Bh1 Qf2 Bhf3 Qd5 Ng2 Rh1 Nf4 Re1 Nh5 Qd4 Ng7 Bd2 Qd3 Rc1 Qb1 Rh1 Qe2 Rce1 Qed1 Bc1
q4B2/B4P2/2bb1rNp/1nn1p2N/1k3NBq/p2QnB2/2B2NqQ/2K2R2 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 f5 f4 fxe4 c4 Bf5 cxd5 Bd7 f5 Bh6 Ra3 Bc8 Rf3 Bf8 h4 a5 g4 Bg7 h5 Ra6 Rf4 gxf4 g5 Rg6 hxg6 Bf8 d4 Kd7 Kd2 Kd6 b6 c5 b7 e6 g7 h6 f6 a4 g6 f3 b5 f2 b6 c4 Nc3 Qe7 Bd3 f1Q Bc2 Qf2+ Nge2 Bd7 Rf1 Nc6 Ba3+ Nb4 Kc1 e3 Qd3 Bc6 b8B+ Qc7 b7 Be8 Ba7 Qc6 b8Q+ Qc7 Ng3 e2 Nd1 e1Q Nh5 Ne7 g8B c3 g7 Qg1 Bh7 Qh2 g8B Bc6 Be4 Nc8 Bf3 Qeh4 Nf2 Qg2 Bh7 Be7 Bf5 Rf8 B5g4 e5 f7 Rd8 Qbb5 Qb7 Qd2 Qb8 Qbd3 Qa8 Qf4 Rg8 Qg3 Rg6 Qh2 Kc7 d6+ Kb7 d5 Rf6 d7 Bd6 Bb8 Kb6 d8N Ka5 Ne6 Na7 Nf8 Nb5 Ba7 Na6 Bb1 Nb4 Ng6 Nc2 B3c5 Ne3 Bc2 Be7 d6 a3 d7 Bd6 Bb3 c2 d8N Bd7 Ne6 Bc6 Ba2 Ka4 Nef4 Ka5 Bb1 Ka4 Kd2 c1N Bc2+ Nb3+ Ke1 Bb8 Bf8 Bd6 Ke2 Kb4 Ke1 N3d4 Kd2 Ne6 Kc1 Nc5
Q3q1Qq/1pQbb2p/1BRB2b1/5PQ1/3K4/1p5B/qrQRr1n1/1BN4k w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Ra7 h4 Be6 h5 Ra8 Nc3 Nd7 Nce2 Ne5 Nf4 gxf4 g5 Ng6 hxg6 Bc8 Ke2 Kd7 Kd3 Kd6 a4 Ke5 g7 c5 g6 b3 d6 f3 a5 Kf4 d7 Kg3 a6 e5 a7 f2 f7 Ne7 g8Q Nd5 g7 Be7 f8B Ne3 Ra6 Ng2 Rh2 c4+ Ke4 c3 d4 c2 d5 Qa5 d8Q Bd7 d6 Qa2 Be3 c1Q Bb6 Qc3 Qc2 Qc8 Kd3 e4+ Kd4 e3 Qdc7 Be8 Bd3 f1B Ne2+ Kf2 d7 Bg6 Nc1+ Kg1 d8Q e2 Be4 e1Q Bd3 Qb8 Be4 Bb5 Bd3 Nh4 Rd2 Kh1 Bf1 Bd7 Bh3 Bd6 Qg5 Qee8 Be7 Ng2 Bf8 Qbd8 Be7 Rc8 a8Q Bb4 Bd6 Ba3 Q7c4 Rc5 Q4c3 Re5 Qc7 Qb8 Qf7 Qbc8 g8B Qcd8 Qg7 Qf6 Bd5 Rg8 Qf7 Qh8 Be4 Rg7 Qg8 Rge7 Q2c6 R7e6 Bb1 Re2+ Qg7 R6e5 Qg8 Bb4 Rd3 Rb2 Qc2 Be1 Rd2 Bh4 Qg3 Be7 Qg5 Nf4 Ba7 Ng2 Rc6 Qa6 Bac5 Qa2 Bb6 Re2+
Nb5B/bQ1n1R2/1N1p4/k3prKQ/1bQPqQB1/p3Q1B1/1r5b/5B1b w - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 h5 axb5 f5 e4 fxe4 g4 Nf6 f4 Rh6 f5 Ng8 f6 Rh8 Ra3 Nc6 Rg3 Nd4 Rg2 Nf5 gxf5 Ba6 Rg5 Bc8 Rg4 hxg4 Ke2 g5 Ke3 a5 d4 g3 h4 g2 c4 g4 Kf4 e5+ Kg5 e3 b6 d6 c6 e2 h5 e1B c5 g3 c7 Kd7 h6 Kc6 b7 a4 b8Q a3 h7 Qe7 Nc3 Ra7 Nb5 Bd7 c8B Bb4 Nc7 Rb7 Nh3 g1B Bf4 g2 Bg3 Be3+ Nf4 g1B Na8 Bed2 Qh5 Bh2 Qa7 Qe6 f7 Qd5 f6 Be7 f8Q Qe4 Qfh6 Bd8 Rg1 Bda5 f7 Bb6 f8Q Nf6 Rh1 Bh3 Bg4 Bg2 Rg1 Be1 Nd5 Nd7 Qf4 Rf8 h8B Bh1 Qa6 Bed2 Qc4 Ba7 Ndb6 Rf6 Rg2 Ba5 Rf2 Bdb4 Qe3 Re6 Rf7 Rf6 Nd5 Rb5 Ndb6 Kb7 c6+ Ka6 c7 Bb8 Na4 Bb6 c8Q+ Ka5 Qb7 B6a7 Qf4 Bbc5 N4b6 Rb2 Qe3 Bb4 Q6g6 Bg2 Qf5 Bh1 Qff4 Rf5+
BQ2q1b1/1p4b1/Q1R2Q2/R2PRNQ1/bnn1Rp1p/K2n2Bk/3br3/1R6 w - - 0 1 illegal: No proof kernel
8/1N1knBQK/pqpb1p2/3NQ1R1/nB1qPN2/1q4q1/6B1/rBN3Nb w - - 0 1 legal: proof: g4 b5 b4 e5 a4 g5 axb5 d5 f4 gxf4 h4 a6 c4 Bb7 cxd5 Bc8 g5 Ra7 Ra2 Rb7 Rb2 Rb6 h5 Rg6 Rb3 e4 Rf3 exf3 hxg6 Bf5 Qa4 Bg4 Qd1 Bc8 Kf2 h5 e4 h4 d4 f6 g7 h3 d6 h2 b6 c6 g6 Be6 d5 Bf5 b5 Rh7 b7 Rh4 b6 Bc8 d7+ Ke7 d6+ Ke6 Nd2 Qc7 d8N+ Kd7 Nb3 Be7 Bd2 Nh6 g8B Bf8 g7 Be7 Ne6 Nf5 Ne2 Ke8 Rg1 Bf8 d7+ Ke7 d8N h1Q Bf7 Nd7 b8Q Nc5 b7 Qa5 Qe5 Qb5 b8N Na4 Nd7 Qh3 Nb6 Qg4 Qb1 Rh1 Nb7 Qh3 Bb4+ Qc5+ Ke1 f2+ Kd2 f3 Kd3 Qh4 Qc1 Bd7 Qg5 Qh3 Rg4 Qg3 Qh6 Rg1 Rg5 Rh1 Bh3 Ra1 Ng1 Bc8 Qh8 f1Q+ Kd2 Qc4 Nc1 f2 Nd5+ Kd7 Bf1 Q4d4+ Ke2 Bd6 Qh6 Qh2 Kf3 Qb6 Kg4 Ne7 Nef4 Qg3+ Kh5 Qb3 Qh8 Qg3 Kh6 Qb3 Bd3 f1Q Kh7 Qg2 Bb1 Qgg3 Bh5 Qg4 g8B Qgg3 Bd1 Ke8 Qg7 Bh3 Bf7+ Kd7 Be2 Bg2 Bf1 Bh1 Bh3+ Qg4 Bg2 Qgg3
1K6/1Br2npB/2B1BbbN/q2Pb3/Q1p3n1/q3Q2Q/3pb1QR/1kB4R w - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 e5 dxe5 h5 gxh5 Bh3 Ba3 Be6 Bc1 Bc8 e4 f5 e6 b5 e5 d4 Nd2 Ra6 Ne4 fxe4 Bh3 Rd6 Bf1 Rd5 cxd5 Qd7 Nh3 Qe7 Ng1 Qd8 Kd2 Ke7 f4 c5 a4 e3+ Kd3 c4+ Ke4 d3 h4 b3 Ra2 b2 a5 b1B h6 b4 h7 e2 f5 e1B f6+ Ke8 e7 Kd7 e8B+ Kc7 f7 b3 h5 b2 e6 Kd6 h6 Kc5 Ke5 Kb4 a6 Kc3 e7 Qa5 Kd6 Bb7 a7 Nf6 a8B Bd2 Bc6 Qa7 Kc7 Qa4 e8B Bc2 Bed7 b1Q Nf3 Bc8 Nh4 Be7 f8Q Qb2 Nf5 Qba3 Bab7 Qa8 Qe8 Bf4+ Nd6 Bb1 Rah2 d2 Bd3 Bc2 Bh3 Bg4 Qg6 Re8 h8Q Nbd7 h7 Be2 Qg2 Ne5 Be6 Nfg4 Nf7 Bf6 Qdg1 Q8a4 Qe3 Re7+ Kc8 Qa7 Qg8 Kb3 h8Q Ka2 Qhh3 Kb1 Bh7 Bg6 Nh6 Nf7 Qd8 Rd7 Qa5 B4e5 Qa6 Qb6 Qa4 Rc7+ Kb8 Qa5
q7/1Pq1N1q1/Qp1k1q2/3rp1n1/b2rB1RQ/3BBBB1/1b3pN1/3QK1Q1 w - - 0 1 illegal: No possible last move
2rr4/R1n2RQ1/1b1pNQ2/1Nn2p1p/6Np/1kN1PR1B/1b1R4/1K1qb1R1 w - - 0 1 legal: proof: c4 b5 h4 g5 a4 gxh4 axb5 Bb7 c5 d6 cxd6 Kd7 Nc3 Ke6 d7 Kd6 Nb1 Be4 d4 Qc8 d8N Nd7 d5 Bg7 f3 Bf8 fxe4 Nb8 Bf4+ Kd7 d6 Qa6 Nc6 Ke6 d7 Qb6 Bd6 exd6 Nd8+ Ke7 Kd2 f5 Kc2 h5 g4 c5 b4 a5 g5 c4 e5 c3 e3 a4 e6 a3 g6 a2 g7 Kf6 e7 Ke5 e8N Ra7 Ne2 Na6 Rg1 Qd4 b6 Kd5 b5 Kc4 b7 Ra8 b8R Nf6 g8R Qf4 b6 Ra7 b7 Ra8 R8g3 Qe5 Qd4+ Kb5 Bh3 Be7 Rf3 Qd5 Ne6 Nc7 d8Q Ne4 Qg7 Kc4 Nf6 Nc5 Ng4 Rg8 Kc1 c2 Nec3 Kb3 Na3 Qd3 Qdf8 Bd8 Nab5 Qd4 Qff6 Qa4 Kd2 c1B+ Kd1 Bb2 Kd2 Be7 Rf8 Bd8 Rf7 Rc8 b8R Rf8 Rad1 a1B Ra8 Rh8 Ra7 Re8 Ne2 Bc3+ Kc1 Bab2+ Kb1 Be1 Nec3 Qd4 Rc1 Qd1 Rg2 N7a6 Rd2 Bb6 Nbc7 Red8 N7b5 Qe2 Rcd1 Nc7 Rc1 Bf2 Rf1 Be1 Rg1 Qd1+
1Bnq4/2QQR1Qn/3Nnp1N/1qp2KQ1/3RN2p/5ppP/2k4N/2N1br2 w - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 b5 axb5 e6 e4 Bd6 e5 Nd7 f5 Rb8 f6 Ra8 Bd3 Bf8 Bf5 exf5 e6 Nb8 g4 a5 g5 Qd3 g6 Bb7 e7 Qd8 Qc2 Kd7 Qd1 Bd5 e8N Ra6 Ke2 Re6+ Kf2 Re7 fxe7 f6 Ke1 Bf7 gxf7 Kc8 Kf2 Kd7 Ke2 Nc6 Ke1 Nb8 Kf2 Ke6 Kf3 Ke5 d4+ Kd5 Kf4 h5 b4 c5 b6 h4 b7 c3 b5 Kc4 b6 g6 h3 c2 d5 Kb3 d6 a4 d7 a3 Nd6 a2 e8N Qc8 d8N Ne7 Nf3 Rh7 Nc3 Rh5 Nde4 Nd7 b8Q Qb7 Nh2 Nc8 Qg1 Bh6+ Qg5 Nf8 Rd1 Nh7 f8Q Qd5 Nf7 Qd8 Be3 c1Q b7 Qb1 Qa7 Kc2 Rd4 Qb5 Re1 a1N b8Q Nb3 Qbd6 Nc1 Na2 Nb3 Rdd1 Nd4 Nc1 Qdb6 Qg7 Qd8 Qdc7 Ne6+ Kf3 f4 Kg4 Nd6 Rd4 Nc8 N8d6 f3 Qe5 g5 Kf5 g4+ Bg5 g3 Qd7 Qbb6 Qac7 Qa5 Kg4 Qa4 Bf4 Qb5 Qd5 Bg5 Be5 Be3 Nh6 Bd2 Bf4 Bb4 Qdg5 Bd2 Re3 Be1 Kf5 Nhf8 N6g4 Rh8 Nh6 Nh7 Nd2 Rg8 Re5 Re8 N2e4 Nef8 Re7 Ne6 Be5 Qb6 Rf7 Ba5 Nb5 Re7 Qb8 Qb7 Nf2 Nc7 Bf4 Re1 Ne4 Bc3 Re7 Ne6 Qa7 Bb4 Bb8 Rf1 Nbd6 Qb5 Qac7 Be1
1QNq1Nk1/Br1Q1n2/Rn2n3/3rp3/5r1r/B2K1N1b/1b1NPb2/1B1B1Nr1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 g4 Na6 c4 Nb8 cxd5 h6 f4 gxf4 g5 h5 Ra3 Kd7 Rg3 Ke8 Rg4 hxg4 d4 f5 Kd2 Kf7 h4 a5 g6+ Kg7 b6 c5 h5 e5 b7 a4 b5 a3 b6 g3 d6 f3 d5 g2 h6+ Kf6 d7 f4 g7 Kf7 h7 c4 d6 a2 Ba3 a1N Rh6 c3+ Kd3 f2 Nd2 c2 Ngf3 c1B Nh2 g1R Bg2 f1R Be4 Ne7 g8B+ Kg7 Bb3 Nbc6 b8Q f3 b7 f2 Ba4 Re1 Nhf1 Ra7 Bc2 Nb3 Re6 Qa5 d8N Nd5 d7 Bc5 Nf7 Bb2 d8N Nbd4 Ng5 Nb6 Ndf7 Nd8 Nd6 Nf7 Ngf3 Bd7 Rf6 Bh3 Nc8 Ne6 Rh6 Bcd4 Bf5 Rd8 h8N Rd5 Ng6 Kg8 Nf8 Rg4 Bb1 Rh4 Qa4 Rc1 Qd7 Rc4 Bc2 Rb4 Bd1 Ra4 Ng3 f1R Be4 Rg1 Ngf1 Rb5 Bg6 Bf2 Bf5 Raf4 Bg6 Nd5 Be4 Qd8 Rf6 Neg5 Ra6 Ne6 Kc4 Bbd4 Bb1 Nb6+ Kd3 Ra5 Qbd6 Bb2 b8B Rb7 Ba7 Rb5 Qb8 Rd5+
b1rRQ2N/2p3n1/4Nn2/Q1P5/1qrq1rNQ/B2kr1bK/qQbN4/3R2N1 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 b4 Kf7 f4 Kg6 Kf2 Kf5 Kg3 Ke4 c4 d5 h4 g5 e6 a5 e7 d4 e8N a4 f5 a3 h5 d3 b6 d2 b7 a2 h6 Ra3+ e3 Qe7 h7 Nf6 b5 Nc6 b8Q Bb7 b6 Ba8 b7 Nd8 Qe1 d1B Nd2+ Kd3 e4 Qb4 e5 Bc2 c5 Bd6 Qa7 Ne6 b8Q Ng7 Qa5 Rg8 Kh2 g3+ Kh3 Ra4 Rb1 a1Q h8N Qa2 e6 Ra3 e7 g4+ Kh4 Rc3 Ba3 Rc4 Rd1 Rf4 Qe5 Rf8 Qd8 Rg8 Qb2 Rc4 Ne2 g1R Rh3 Rg2 Ng1 Rf2 Rh1 g2 Rh2 g3+ Kh3 Ng4 f6 Rff4 f7 Nf6 f8N Bb1 Ne2 g1R Ne6 Re1 Ng1 Bc2 Re2 g2 Re4 Nh7 Nf6 Re2 Ng4 Nf6 e8Q Re3+ Ngf3 g1Q Rd4+ Ke2 Qde7 Be5 Rd8 Bd6 Qh5 Kd3 Qh4 Qf2 Rb8 Rc8 Qe8 Re1 Ng1 Qd4 Rb6 Be5 Rd6 Re2 Rd8 Re3+ Kh2 Rff3+ Kg2 Bg3 Kh3 Rf4
q1Rr1nNR/4rbbB/2p1k1rQ/3N1q1N/1NbQ4/NQP1n3/7K/2bQ1q2 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 e4 Ke7 f4 d5 b4 g5 h4 a5 c3 d4 e6 d3 f5 g2 Kf2 a4 Kg3 d2 e5 c6 f6+ Ke8 h5 a3 e7 Kd7 e8N a2 f7 Ke7 h6 Ra3 e6 Ra4 b6 Qd5 b7 Nd7 b8Q Ngf6 b5 Qf5 b6 Re4 b7 Bg7 h7 Nd5 Bd3 Ne3 Nf6 Rd8 h8Q Nf8 Nh3 g1B Nf4 Bd7 N6h5 Be8 Na3 Re5 Rb1 a1Q Rh3 Bf2+ Kh2 g3+ Kh1 g2+ Kh2 g1R Rh4 Qg4 Bh7 Qf5 Rb5 g4 Ra5 Red5 Ra8 R5d7 Rh3 Rc7 Nd5+ Kd6 e7 Ke6 Nb5 Bh4 Na3 Bg5 Rh4 Ng6 f8Q Bf7 e8N Re7 Nef6 Rg2+ Kh1 g3 Ng8 B5h6 Qf4 Qa2 b8N Bg5 Qe8 Nf8 Qd4 Bf4 Qb3 d1B Na6 Be2 Rc8 Bc4 Nab4 Bg5 Nb5 Qa8 Na3 Rf2 Qbd1 g2+ Kh2 Rf4 Rh3 Rg4 Qb3 B5h6 Qdd1 Rg6 Qd7+ Ke5 Qa7 Ke6 Rh4 Qg5 Qad4 g1Q+ Kh3 Qf1+ Kh2 Qgf5 Rh3 Bf6 Qg7 Bhg5 Qh6 Bg7 Nhf4+ Kd6 Qh4 Rf6 Bg6 Ng2 Qh8 Kd7 Rh6 Rfe6 Nh5 Bc1 Rh7 Ne3 Rh6 Bf6 Qg7 Kd6 Rh8 Kd7 Qh6 Bg7 Bh7 Rg6 Nbc2 Kd6 Ncb4 Ke6
q1r2nK1/q1NB2nb/1b1nQ3/1Q1Npr1R/pQ3qN1/7N/P1QN1B2/k2r4 w - - 0 1 legal: proof: d4 c5 h4 e5 dxe5 g5 b4 gxh4 bxc5 f6 e4 Ke7 e6 Qe8 e5 Kd8 e7+ Kc7 e6 Kc6 Nd2 Qd8 Rb1 Bg7 Rb4 Bh6 Re4 Bf8 Re5 fxe5 Ke2 Kb5 Kd3 Kb4 Ke4 Kc3 Kf5 h5 Kg6 b5 Kf7 d5 e8Q a5 f4 b4 g4 d4 c6 a4 c7 h3 f5 h4 e7 h2 f6 b3 g5 b2 g6 b1Q g7 d3 Nc4 d2 Qc6 h3 e8N Qd4 Qb5 Ne7 g8N Qa7 Nh6 Nf5 Ng4 Rh5 Kg8 Bc5 f7 Nd6 f8Q Bf5 c8Q Bg6 Qe6 Nd7 Nc7 Rc8 Qe2 d1R Be3 Qb2 Nd2 Qb4 Bf2 Kb2 c4 Bb6 c5 Rf5 c6 Ka1 Qe4 Qd4 Qc2 Qf4 Bd3 Ne8 Qfb4 Nf8 Ngf3 Nd6 Ng5 Rf6 Bf5 Rf7 Rg1 h1Q Rf1 h2 Nh3 Qd5 Re1 h1N Rg1 Ng3 Rh1 Qff3 Na6 Nde4 c7 Qb8 Ng5 Re8 c8N Qa7 Rh5 Nd6 Nc7 Qda8 Ne7 Rc8 Qec4 Qf4 Bd7 Ngf5 Nh3 Ng7 Qe6 Rf5 Ned5 Bh7+
Kr1nRNk1/2N5/N3p3/2Q5/1QpNb3/n1r1P1q1/1b1qr1QQ/B2bn1QB w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 g4 Na6 c4 Nb8 cxd5 h6 f4 gxf4 g5 h5 Ra3 Kd7 Rg3 Ke8 Rg4 hxg4 Kf2 f5 d4 Kf7 h4 a5 e3 c5 d6 c4 h5 g3+ Kf3 a4 b6 g2 d7 a3 b7 a2 h6 a1N g6+ Kf6 g7 Kf7 d5 Nc2 b5 Na1 d6 Ra2 b6 Na6 b8Q Nb4 h7 Ra7 b7 Ra3 Bb2 Nbc2 Ne2 g1Q Nd4 Rc3 Bg2 Nh6 Na3 Qe1 Nab5 Na3 Rh3 N1c2 Ba1 Rg8 h8Q Qg3+ Ke2 Qa5 d8Q Ne1 d7 f3+ Kd2 f4 Qdc7 f2 Qc5 f1R Nc7 f3 Bh1 f2 d8N+ Kg6 Qb1+ Bf5 N8e6 Kf7 Rh5 Bg6 Re5 Be4 Qbb4 Rg1 Qa8 f1B b8N Be2 Nba6 Rg2 Qad5 Ng4 Qh3 Nh6 Qh2 Rh8 Qa8 Kg8 Qab7 Nf7 Qbd5 Rf2 Qdb7 B4d3 Qbg2 Nd8 Re4 Rh7 Qgg1 Kf7 Re5 Be4 g8Q+ Kf6 Qgg2 Bg7 Nf8 Bh8 Qg4 Kf7 Qgg1 Bd1+ Qe2 Rf1 Qeg2 Kg8 Re6 Rb3 Re5 Rb2+ Kc3 Re2 Ndb5 Rff2 Kd4 Rg7 Re6 Rc2 Re5 Rc3 Re6 Re2 Re5 Bg6 Kd5 Rh7 Re4 Bg7 Nd4 Bh8 Rf4 e6+ Kd6 Bg7 Kd7 Bf5 Kc8 Be4 Rf7 Be5 Re7 Bh8 Re8 Rd7 Ncb5 Rc7+ Kb8 Rb7+ Ka8 Bg7 Qch5 Bh8 Nc7 Qd5 Nc6 Qd2 Nd4 Rc1 Nc6 Bb2 Qhc5 Rc3 Nd4 Rb8+
3N2R1/rB1b1Bq1/1np1bb2/n1P1n2K/2Qr2N1/k1B1pBrN/4bNB1/6Q1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bf8 e4 gxh4 b4 f5 e6 Qg5 e5 Qe7 Ra3 Qg5 Re3 Qd8 Re4 fxe4 Ke2 Ke7 c4 d5 f4 h5 g4 a5 g5 a4 g6 d4 f5 e3 Kf3 a3 b6 d3 b5 h3 g7 d2 f6+ Ke8 e7 Kd7 e8B+ Ke6 b7 h2 c5 Kd5 b6 h4 e6 a2 Kg4 a1N f7 h3 Bg2+ Kc4 Nc3 Kb4 Bb2 Bd6 f8Q Nb3 Qff1 Qd7 Ne4 Ra7 Nf2 Bf4 Bf7 Na5 Bc3+ Ka3 Qc4 Nbc6 b8N Nge7 g8B Be5 b7 Nd5 Bh7 Qe7 Bhe4 Rg8+ Kh5 Nb6 Nd7 Rg3 b8N Bf6 Ne5 Bd7 Neg4 Ne5 Bef3 Qf8 e7 Qg7 Qb1 d1R Nc6 Rd4 Nd8 Be6 Bb7 c6 e8B Bf5 Ne2 Bd7 Rg1 h1B Nf4 h2 Bfd5 Nb3 Bgf3 Na5 N4h3 Bg2 Bde4 h1B Bf7 Bf1 Bg2 Bd3 Bef3 Be2 Rd1 Na8 Rd2 Nb6 Qg1 Rf4 Rd6 Re4 Re6 Rd4 Re8 Bd3 B3d5 Rf3 Bf1 Rg3 Rg8 Be2 Be4 Bg2 Bed5 Be4 Bg2 Bef5 Bdf3 Bfe6
N1RBQ3/bb3Bp1/Kn3r2/Bp6/R2n2P1/R2B1br1/rQ3qBr/3Rn1k1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 h4 b4 axb4 Nc3 Ra4 Ne4 Ra8 Ng3 hxg3 a4 Kd7 d4 b5 Kd2 c5 e4 f5 h4 b3 Kc3 b2 a5 b1R d6 Kc6 d5+ Kd7 h5 c4 a6 g2 e6+ Ke8 d7+ Ke7 d6+ Kf6 a7 Ke5 h6 f4 h7 f3 e7 f2 e8Q+ Be7 Bd3 f1B Bd2 Nf6 Nh3 g1R Qc2 Rb4 Qb2 Bb7 Ra3 Nc6 Nf4 Bg2 Ne6 Nd4 Nc7 Bf3 Ra4 Rg2 Rha1 Rg3 R1a3 Rf8 Be1 Kf4 h8R Ke3 e5 Qc8 d8R Qf5 d7 Bc5 Bd2+ Kf2 e6 Kg1 e7 Bb6 Rc8 Qc5 d8B Nd7 Rh2 Rf6 Be1 Qf5 Rd2 Bc5 Rd1 Nb6 Qc6 Qf4 e8B Qe3 Bf7 Qf2 Qd2 Rb2 Qe8 Qe3 Qc1 Rh2 Qb2 Qf2 Qb1 Nb3 Qb2 Bd4+ Kb4 c3 Bfg6 Be3 Bf7 Nd4 Ka5 c2 Bb4+ Kg2 Bd2 c1N Bc3 Bbc6 Be1 Kg1 Ka6 Bce4 Bc2 Nd3 Ba5+ Ne1 Bd3 Rb8 a8B Rb7 Ne6 Rc7 Bb7 Rc2 Nc7 Re2 Na8 Rd2 Qb4 Ra2 Qd2 Bf4 Bbd5 Bb8 Qb2 Ba7 B5c4 Bc6 Bcd5 Be2 Bh1 Bef3 Bg2 Bb7+
BB1r1n1n/p1rQ1rBB/Q1b5/4Qpr1/NQ1b4/qq1BKP2/2N1R2q/6k1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 d4 gxh4 b4 e5 d6 Qe7 d5 Qg5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 Kd2 Kd7 g4 c5 e4 f5 g5 h5 g6 d3 g7 c4 f3 h3 b6 h2 b7 c3+ Ke3 c2 b5 d2 e5 h4 b6 h3 Bb2 c1R Ne2 Nh6 g8B Rc2 Bh7 Qe7 Na3 Rc7 Qb1 d1Q Nc3 Qb3 Bd3 Nf7 Nc2 Rg8 Na4 Bg7 Re1 h1R Re2 h2 Qa1 Nh8 e6+ Ke8 Qa2 Nd7 b8B Nf8 b7 Bd7 Bc3 Bc6 d7+ Kd8 Qa3 Qd6 Qb4 Ke7 Bb2 Bc3 Ba1 Kf6 d8Q+ Ke5 e7 Rg4 e8B Rg5 Qd7 Rd1 Bf7 h1Q Be6 Qe7 d6 Qh2 Bd5 Rdg1 Qc8 R1g4 d7 Bd4+ Kd2+ Kf4 d8Q Kg3 Qdd7 Rg7 Bc3 Rf7 Ba1 Bf2 Bg7 Kg2 B5e4 Kg1 Bd5 Bg3 B5e4 Be5 Ke3 Bb5 Bc6 Rg5 Bd5 Rc3 Qcc4 Bc6 Qa6 Rc4 Bc7 Re8 b8Q Rd8 Q8b5 Qd6 Bb8 Bc3 B5e4 Bb2 Qe5 Ba1 Qbb7 Qda3 Qb4 Bd4+ Kd2 Bb5 Bb7 Rc7 Ba8 Bc3+ Ke3 Bc6 Ne1 Ba1 Nc2 Bd4+
2B1B2q/1BN1kpn1/2R2n2/1Rn1K3/2qp3R/rQ2bbB1/2R2Pr1/R1Q1qn2 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 Kd2 h5 Kd3 c5 Ke4 a5 g4 a4 b4 a3 d7+ Ke7 b6 a2 b7 h3 d6+ Kf6 g5+ Ke6 g6 c4 b5 c3 g7 c2 b6 h2 Bg2 h4 Nf3 h3 Bf4 c1Q Bg3 Rh6 Ng5+ Kf6 Ne6 Qd2 Nc7 Rh5 Qc1 Na6 b8R Rd5 b7 Qe1 Kf4 Qc3 e4 Qc4 Bf3 Qe8 d8R Bg4 d7 Ke7 e5 Nf6 g8B Nc5 e6 Ra3 Rdc8 Rg5 d8R Bh6 Bh7 Qh8 Rd6 Rg8+ Ke5 Be3 Bd5 Bf3 Bf5 Rg6 Rc6 Rg8 Rb1 a1Q Ra8 Qac3 b8Q Qe1 Qb3 Rg6 Ra5 Rg5 Rb5 Rg6 Rf1 h1N Ra1 h2 Bh3 Qec3 Rd1 Qe1 Rd2 Rg8 Rc2 Rg7 Rg8 Rg6 Rg7 Rg4 Rh7 Rg8 Bf4 Ng3 Rh4 Nf5 Bg3 h1N Be4 Rg4 Bd5 Ng7 Be4 Kd8 e7+ Kd7 e8B+ Ke7 Bd5 Rg6 Bc8 Rg4 Bf4 Ng3 Be4 Nf1 Bg3 Ra2 Rcb6 Ra4 Beb7 Ra3 Rc6 Rg6 Bh2 Rg1 Bg3 Rg2
1Bb1b1kn/R3RR2/Q4K2/bQp1R1qb/1prB2N1/2P2n1n/B4n2/2r2BR1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 dxe5 g6 f5 Rh7 Nc3 Rh6 Nd5 Rh8 Ne3 Rh7 fxg6 Rh6 g5 Rh8 Ng4 hxg4 Kd2 f5 Kd3 d5 Kd4 b5 e4 b3 h4 c6 a4 g3 e6 b4 Ke5 b2 a5 b1B h5 d4 e7 f4 h6 f3 a6 c5 h7 d3 a7 g2 g7 Kf7 e8R f2 c3 d2 Qa4 d1B Re7+ Kg6 Nf3 g1N Qb5 Nh6 g8B Nh3 Nh2 Bh5 Rg1 Nd7+ Ke6 Nf7 e5 Kg7 g6 Be4 Bf4 Bc6 Kf5 Nf6+ e6 Ne4 Ng4 Be8 Ra6 Rb8 a8Q Rb7 Ra4 Rd7 Ra7 Rd4 Bb8 Rc4 Qab7 Qd2 Q7a6 Qh6 Red7 Bd6 e7 Bc7 Ke6 Bb7 Rd5 Qg5 Re5 Bec6 e8R Ba5 Re7 Be8 Bd3 f1N Be2 Nfd2 Bf1 Qh6 Kf5 Kf8 Ke6 Nef2 Kf6 Nfg5 Bf7 Ndf3 Be6 Rg8 h8B Nf7 Bd5 Rg7 Be6 Rh7 Bd5 Qc1 g7+ Kg8 Be6 Bc8 Bd5 Bg6 Be6 Rh4 Bd5 Bh5 Be6 Kh7 g8R Qd2 Bg7 Nh8 Rf8 Qd5 Rff7 Kg8 Nh2 Rhd4 Ng4 Qd8 Bd5 Rd1 Be6 Rc1 Bd5 Rd4 Ba2 Qd5 Bh6 Qd8 Be3 Rc4 Bd4 Qd5 Be3 Qd2 Bd4 Qg5+
3r1Q2/bR6/1p1qBpQB/k4P2/1q2pQBQ/1R5B/2nnQ1br/2NKrb2 w - - 0 1 illegal: No possible last move, all moves rejected
N5B1/B1rnQQN1/RN2r3/p1bb1p2/N3rP2/q2k1n1p/NQ1q3Q/1b1K4 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 d4 gxh4 b4 e5 d6 Qe7 d5 Qg5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 f4 Kd7 g4 f5 e4 c5 b6 a5 e5 h5 e6+ Ke8 g5 h3 d7+ Ke7 b5 Kd6 e7 d3 g6 c4 e8N+ Kc5 g7 Kd4 d6 c3 b7 h2 b6 c2 Qe2 h4 Nc7 Be7 Nc3 Bf6 Na2 Rh5 Be3+ Kc4 Kd2 Qe7 d8Q c1R d7 Ra6 Na8 Qa3 Qe7 Rh6 d8N Bd4 Ne6 Nc6 b8Q Ne5 b7 Nf6 g8Q Nfd7 Qgf8 Rb6 Ng7 Rb4 Qh5 Rd6 Ne2 Rdb6 Rg1 h3 Nec3 h1B Bg2 Nc5 Na4 Be6 Qe2 Rd6 Bc6 Be4 Qh2 Rc3 Bd7 B6d5 Rg6 Ra6 Ke1 d2+ Ke2 Nf3 Be6 Bb1 Bg8 Rc6 Qff7 Rc7 Ra6 d1Q+ Kf2 Qdc1 Ke2 Rb6 Bf2 Re6+ Be3 Qcb2+ Kd1 Rc2 Bf2 Rce2 Bg1 Kd3 Bf2 Rd7 Qe5 Re3 b8N Rc7 Nd7 Re4 Q5f6 Be3 Bg1 Qg2 Qb2 Qf2 Ndb6 Nd7 Nc8 Qg2 Bf2 Bc1 Bb6 Be3 Ba7 Bc5 Ncb6 Qd2+
1k1bq2N/3pQ1Rr/RN4r1/2RBrp2/3NN1p1/3b2Kn/5QPn/2n1NqR1 w - - 0 1 illegal: No proof kernel
4k3/nK3pRp/1Br3NB/NQb4B/6pn/2n1qPr1/N3BQ2/2q1BrNb w - - 0 1 illegal: No proof kernel
Q1N3k1/1RbNpR1q/NRQ3nR/n1n3n1/2p2pb1/5Prr/1R2Bb2/4NK2 w - - 0 1 legal: proof: e4 a5 c4 d5 g4 b5 b4 h5 gxh5 Nc6 Ba3 Nb8 exd5 bxc4 b5 Qd7 Bc5 Qd8 Bb4 axb4 a4 c5 h4 f5 d4 Kf7 d6 g5 b6 g4 a5 b3 d7 f4 a6 b2 a7 c3 d5 c2 h6 c1N b7 c4 d6 g3 h7 g2 h5 Na6 b8N Bb7 h6 Bc6 Qf3 Nb4 Na6 Qa5 d8Q Qg5 d7 Rc8 a8N Qh5 Nd2 b1N Nb6 Ba8 Ra2 Qf5 Nb3 Nf6 Qc6 Nc3 Rb2 Nfe4 Be2 Bg7 Nf3 g1B Nbc5 Ncd3+ Kf1 Ne5 Ne1 Na4 f3 Bb7 Rh5 Ng6 Rg5 Rb8 Nc8 Bf2 Rg3 Rg8 h8R Ng5 h7 Be5 Qa5 Ra8 d8R Bc7 Nd7 Nc5 Rf8+ Kg7 Rh3 Qb1 Rh6 Rb8 Qd6 Nc6 Qa2 Na5 Qc6 Ra8 Rf6 Qf5 Rd6 Kf7 Qa1 Rg7 Rd8 Qb1 h8R Rh7 Rhf8+ Kg7 Rh2 Rh3 Rff6 Rg3 Rh6 Qc2 Rdh8 Qe4 R8h7+ Kg8 Rhf7 Qf5 Rd1 Qd3 Rdb1 Qf5 Na7 Bc8 Qaa4 Rb8 Qa8 Qd3 Rfb6 Rh3 Q4c6 Qc2 Ne5 Bg4 Nd7 Rf8 Nc8 Rg3 Rf6 Rf7 Rb7 Rh7 R2b6 Rh8 R1b2 Qb1 Rh7 Qe4 Rhf7 Rhh3 Rd6 Nh4 Re6 Qh7 Rh6 Ng6
2N1n1r1/pNpr4/1R2BQ2/Pr3bBn/bk3p1B/1r1qN3/2B2NQ1/1K1B2b1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 f4 g5 fxg5 Ba3 Kd2 Be7 Ke1 Bf8 b4 h5 a4 Ne7 g4 Bh6 g6 Ng8 g5 Bf8 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kd2 Ke7 Kc2 f5 e4 d5 h4 d4 g7 c3 e6 Kd6 h5 g3 g6 g2 h6 Qf6 e7 Nd7 e8N+ Kc6 b5+ Kc5 b6 Qc6 a5 Ndf6 e5 Nh5 b7 Ngf6 g8Q Qa6 b8N Kb4 e6 Ne4 e7 Nef6 h7 Ne4 g7 Nd6 Na3 d3+ Kb1 d2 Nc6+ Kc5 Qf3 d1B Bg5 Be2 Nc2 Qc4 Nd8 Qe6 Nh3 g1R Nf2 Qc4 Ne3 Rb8+ Nb7+ Kb4 Qf4 Bd1 Bd3 Rg2 Bc2 Rg3 Qd5 Qd4 Qg2 Rg8 h8B Bd7 Qe5 f4 Qf6 Qd3 Rh3 Bf5 Rh4 Nc4 Ned6 Rd8 e8B Rd7 Nc8 Nd6 Bf7 Ne8 Bb3 Bc5 Rh3 Bf3 Rh1 Bc6 Bh4 Ba4 Re1 Rf8 g8B Rg5 Bge6 Rfg8 Bg7 Rg3 Bh6 Rf3 Kc1 Bd4 Bd1 c2 B6g5 Bc5 Kb2 c1R Bbc2 Rb1+ Ka2 Bd4 Rf1 Kc3 Re1 Rb5 Re2 Kb4 Kb1 Bb6 Rd2 Qa3 Rd6 Qd3 Nh1 Bc5 Rb6 Rg3 Ng4 Bf2 Ne3 Bg1 Nf2 Qd4 Nc4 Ra3 Ne3 Qd3 Neg4 Rc3 Ne3 Rb3+
1Q2RNNr/1rB2NqQ/p1Q3pb/4Kn2/1k6/1bNp2Q1/Pn4Q1/nrn1R3 w - - 0 1 illegal: No possible last move
1Q1q1n1b/N3Rq1Q/2rpNQQ1/nb1P1R2/1p2B2b/RR4Kp/1bR2r2/6k1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 d4 Kf7 f4 Kf6 Kf2 a5 g4 e5 c4 h5 c5 d6 g5+ Kg7 d5 e4 f6+ Kg6 f7 Kf5 b7 h3 g6 h4 c6 h2 b6 h3 g7 a4 c7 a3 Qc2 Kg4 f5 a2 f6 Rh5 Bg2 Bd7 c8R Bb5 Nf3 Ra6 Nc3 Rf5 Rhb1 h1Q Rb3 Nc6 b8Q Nge7 g8Q+ Ng6 b7 Bh6 f8R Na5 f7 Bg5 Qh7 Rc6 Re8 Nf8 Re7 Kf4 Nd4 Rf6 Rf1 a1B Qg6 Bb2 Ne6+ Kg4+ Bf3+ Kh4 Ra1 Qc1 Raa3 Qf4 Qa8 Qf5 b8Q Qf4 Qab7 Rf5 Qf6 e3+ Kg1 Kg3 Be4 e2 Kh1 Nh7 f8R Kf2 Rcc7 Qf3+ Kh2 Rf4 Qd3 e1B Rff7 Nf8 Qb1 Ba4 Nb5 Bec3 Na7 Bb5 Qd3 Qh5 Qc2+ Kf1 Kg3 Kg1 Qd3 Rf2 Rc8 Rb6 Qd7 Bd4 Rc2 Rc6 Qe8 Ng6 Qeh8 Nf8 Qg6 Qh7 Rf5 Qf7 Qhh7 Bg7 Qd4 Bh8 Qdf6 Bh4+
2Q4Q/prR1p3/1qR2qp1/n3b1Q1/3bRQNB/1k4P1/rN2QpRK/5b1n w - - 0 1 illegal: No proof kernel
b3N3/3QnQ2/2q1pN1k/1B1r3p/1BKBp1r1/N3Pn1b/1p1b4/2bRBNB1 w - - 0 1 legal: proof: c4 a5 b4 axb4 h4 d5 cxd5 g5 hxg5 Bd7 a4 f5 Ra3 Be6 Re3 Bc8 Re4 fxe4 f4 Kf7 g4 Kg7 d4 b5 Kd2 h5 a5 c5 g6 b3 Kc3 b4+ Kc4 e6 d6 b2 d5 b3 f5 Qb6 g5 Nh6 a6 Rh7 f6+ Kh8 d7 Qc7 d8B Qe5 g7+ Kg8 d6 Nd7 a7 Bb7 Nf3 Qf5 Na3 b1B Be3 b2 Bb6 Bc2 Nd2 Bb1 Bg1 Bc6 e3 Rd8 a8N Rh8 f7+ Kh7 Ba5 Ng8 g6+ Kh6 Nc7 Ne7 g8Q Ba8 g7 Qg5 Ne8 Bd3+ Kc3 Ne5 d7 Ba6 Bb5 c4 Nf1 Nf3 Bb6 Qg2 Bd4 Qc2+ Kb4 c3 Kc4 Qc1 Qd2 c2 Qd3 Rb8 d8B Rh7 Ba5 Rd8 Be1 Rd5 Bb6 Nc6 Ba7 Bb4 f8B Bd2 Bb4 Ne7 Qf7 Rh8 Bd4 Rf8 Qg8 Rf4 Qf7 Rg4 g8N+ Kg5 Ngf6 Kh6 Kb3 Qd1 Qe2 c1B+ Kc4 Qa4 Qh2 Qa5 Qc7 Qb6 Qd7 Qc6+ Bbc5 Bb4 Rh2 Ba5 Rd2 Bc3 Rd1 Ba5 Qd6 Bad2 Qd7 Rg8 Nh2 Ng5 Kb3 B6b7 Bb4 Ba6 Ba4 Bf1 Bb5 Bh3 Nf1 Rg7 Ba5 Nf3 Bb4 Qb6 Kc4 Rg4 Ng3 Qa6 Nf1 Qc6+
B2N2B1/2b4Q/1pK1p1p1/1b1p1nNr/1NpB1b1k/4Qn1B/1BP2Nq1/2r4R w - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 h5 dxe5 d6 g4 hxg4 e6 Rh5 e7 Kd7 Na3 Rh3 Nb1 Rh8 e8B+ Ke7 e4 Rh4 a4 Rh3 e5 Rh8 e6 Kf6 e7 Ke6 Ra3 Ke5 Rh3 Ke4 Rh6 Ke5 Qe2+ Kd4 Qd1+ Kc5 Re6 fxe6 Ke2 c6 Ke3 d5 h4 Kd6 Kd4 g6 f4 g3 a6 g2 f5 Ra7 f6 Bh6 h5 Bf8 a5 Rh7 h6 Bg7 Qf3 Bf8 f7 Ra8 a7 Bd7 a6 Qc7 Bb2 Nf6 Nh3 g1B+ Nf2 Ne4 Qe3 Bh2 Nc3 Bc8 Na2 Bf4 Bh3 Nd7 Nb4 Rb8 a8Q Ng3 a7 Ne5 Ng4 Bg7 f8N b6 Nf2 Ba6 Qb7 Ra8 Bf7 c5+ Kc3 c4 e8N+ Ke7 Nd6 Kf6 Bg8 Kg5 Nf7+ Kh5 Nd8 Kh4 Kd4 Rh8 Nh7 Nf5+ Kc3 Bf8 Ng5 Bd6 h7 Qc5 Qd7 Nf3 Qf7 Bc7 Qg7 Rb8 a8B Rb7 Bf7 Rf8 h8B Qd6 Bg8 Qe5+ Qd4 Qe2 Qe3 Qf1 Qe7 Qg2 Bd4 Rf7 Qd7 Rh7 Qg7 Rh5 Qh7 Ra7 Na2 Bc8 Kb4 Ra4+ Kb5 Ba6+ Kc6 Ra3 Nb4 Ra1 Bh8 Rc1 Bhd4 Bb5+
1N2qN2/RBNN1r2/1B5b/8/PrRbr3/1B2r1rk/1nK3r1/B2N1B1r w - - 0 1 legal: proof: e4 a5 b4 axb4 d3 c5 Nf3 f5 exf5 c4 Ng1 d5 c3 d4 cxd4 c3 d5 Bd7 Bd2 Bb5 Bc1 Bc4 dxc4 g5 h4 Qc7 f4 Qb6 g4 Ra6 f6 Ra5 h5 Qd8 f5 Ra8 Qd2 Nc6 Qf4 gxf4 g5 Ne5 Ba3 Kd7 Bc1 Ng6 hxg6 Ke8 Kd1 Kd7 a4 e5 d6 h5 f7 b5 f6 Ke6 c5 Kf5 c6 Kg4 d7 f3 c7 h4 c8N f2 g7 h3 g6 e4 Nd6 c2+ Kd2 h2 Na3 b3 Kc3 b4+ Kd2 b2 Nab5 b1R Na7 b3 Nc6 b2 Nb5 e3+ Kd3 e2 Nh3 e1R Nb8 Qe8 d8B Rh4 Bb6 Bc5 f8N Ne7 g8B Nd5 g7 Nc3 f7 Bd4 Nfd7 Nd1 f8N Re3+ Kd2 Kg3 Nc7 Rhe4 Bd5 Ra5 Bb3 Rg5 g8B Kh4 Rg1 h1R Bgd5 Rgg3 Bb7 Kg4 Ra2 Ra1 Ra3 b1R Bb2 c1B+ Kc2 Kh4 Bc3 Nb2 Rg2 Rd3 Rh2 Bh6 Rg2 Rge3 Rg5 Rg3 Ra5 Rde3 Ra7 Rhg1 Be2 f1R Nf2 Rh1 Nd1 Rf7 Bf1 Nc4 Ba2 Rb4 Bb3 Rb1 Ba1 Nb2 Ba2 Rhg1 Rc3 Rh1 Bb3 Kg4 Be2+ Kh3 Rc4 Rhg1 Nc3 Rbf1 Nd1 Rh1 Bd3 Rfg1 Bf1+ R1g2+
1R6/4q1N1/pRR2bk1/N3b1bq/NN1R1n2/3Pn2R/B2n3N/rbK1Bq2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Kf2 a6 Qc2 h5 Qf5 Rh6 Qg5 Rf6 Ke1 Rf5 gxf5 Bc5 Kd1 Bf8 Qg4 hxg4 Ke1 Ra7 Ra3 Rb7 Ra5 Rb6 Ra2 Rh6 Ra1 Rh8 Kd1 Kf7 b4 g5 e4 c5 h4 g3 d6 f2 h5 f3 f6 g2 d7 g4 b6 g3 b7 c4 b5 c3 b6 Rh6 e5 Bd6 e6+ Kf8 f7 Kg7 f8R Nf6 e7 Kh7 e8N Bc5 Rh3 Nc6 b8N Be3 b7 Ne5 Ng7 Bd4 Ra4 Nd5 Bc4 f1N Nc6 f2 b8R Ng4 Na5 Bf6 Nf3 g1Q Rb6 g2 Ba2 Qe7 d8N Qh2 Rd4 g1B Ndc6 Bf5 Rc8 Nf4 Nb4 Qh1 Bb2 c2+ Kc1 Bh2 Bc3 Nge3 Rcc6 Rg6 h6 Rg1 Re4 Kg6 h7 Bg3 Nh2 Qf3 h8R Qh5 Rd4 Be4 Rhb8 Bd3 Kb2 c1B+ Ka1 Bc2 d3 Rh1 Be1 Nd2 Nc3 f1Q Na4 Bb1 Rc5 Bh4 Rc4 Bg5 Rcc6 Ba3 Nc2 Bc5 Kb2 Bd6 Nb4 Bde5 Kc1 Qg2 Kb2 Bc2 Bh4 Ra1 Be1 Bb1 Kc1 Qf1
1BKR2r1/5npR/2p2qBR/2N1nN2/1BP1B3/1pb1B2n/k3bbR1/1b2R1r1 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 Qd3 e6 Qg6 e5 Qg5 f6 dxe5 f5 gxf5 Rh7 Qg3 Rh8 Qg4 hxg4 Kd2 Ke7 Ke3 d5 Kf4 b5 e4 c6 h4 g3 c4 d4 a4 b3 h5 b2 e6 Kd6 a5 Kc5 Ke5 Kb4 f4 Kb3 a6 d3 h6 g2 f6 b4 f7 d2 h7 d1B f5 Bc2 a7 Bd1 f6 Na6 e7 Qe8 Kd6 Bf3 e5 Nb8 Kc7 Bf5 e6 Bg6 Bd3 Bd1 Be4 Bdh5 Ne2 g1B Ng3 Be2 Rh6 Nd7 Nd2+ Kc3 Ra2 b1N Nb3 Nc5 Nf5 Nd3 Be3 Nf4 Nc5 b3 Rd2 Rb8 a8R Nh3 Rd8 Kb4 Ra2 Nd2 Rc2 Rb5 Kc8 Ka3 Rb2 Nf3 Rc2 Bd3 Rg2 Ra5 Kb8 Qd7 e8R Qd6+ Kc8 Be2 e7 Qe5 Rd1 Qd6 Rd8 Ne5 e8B Bf2 Re1 Be7 f8B Ka2 f7 Bf6 Be7 Qd4 f8B Qc3 Rh4 Nh6 Bd6 Nhf7 Bb8 Rg8 h8R Ra7 R4h7 Rd7 Rh1 Rd1 Rh6 Rg1 R8h7 Bd3 Bfd6 Bb1 Be7 Bh5 Bed6 Be2 Bf8 Nfg5 Bg6 Ngf7 Rh8 Ng4 Nb7 Rf1 R8h7 Qe5 Rhg1 Qe7 Rh1 Bc3 Rhg1 Qf6 Bb4 Rc1 Nc5 Nge5 Rd1 Nhg5 Rd5 Rh1 Rd1 Nh3 Re1 Rg1
2n5/1k3n2/3R2bP/3qQBb1/NKB2B2/2Q1QQ1N/r2nqNrr/n3N3 w - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 h5 g4 hxg4 c4 c5 cxd5 a5 bxa5 Qc7 Ra3 Qb6 Rb3 Qd8 Rb4 cxb4 axb5 Ra6 Na3 Ra7 Nb1 Ra8 h4 Kd7 d4 Kc7 Kd2 g5 f4 e5 a6 b3 Kc3 b2 a7 g3 f6 e4 f7 g4 d6+ Kb7 d7 g2 f5 e3 h5 g3 f6 e2 b6 e1Q+ Nd2 b1R d5 Qde7 d8Q Qc5+ Bc4 Ra1 d6 Ne7 h6 Ng8 d7 Nc6 Qe7 Qf1 d8Q+ Bd7 Ndf3 Qb5 Qc7+ Ka6 b7 Qe2 b8Q Nd4 Nh3 g1N Nf2 g2 Qe3 Be7 f8N Bf5 f7 Nc2 Ne1 Nh3 Nh7 g1N f8N Nf3 Nd7 Nhg5 Nb6 Bg6 Na4 Nf7 Ng5 Ra2 Ngh3 Na1 Qg3 Rh7 Qbe5 Kb7 Qdd3 Nd2 Qgf3+ Qc6 Qc2 Bh4 Kb4 Qd5 Qcc3 Bg5 Rf1 Rd8 Rh1 Ne7 a8B+ Kc8 Bc6 Rg7 Bd7+ Kb7 Bf5 Nc8 Rg1 Re8 Rg4 Re7 Rd4 Re6 Qf6 Re4 Qe5 Rh4 Rd3 Qe4 Rd6 Qd5 Ng1 Rh2 Ngh3 Nb1 Qe3e4 Rg8 Bf4 Nd2 Qee3 Bd8 Bd7 Bh5 Bcb5 Rgg2 Bc4 Bg5 Bf5 Bg6
3kN3/1BN4P/R1q1n1nQ/p1Q1b3/4Q2r/K2bNq2/1b1RRN1b/1r4R1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Rh7 a4 bxa4 b5 a3 b6 Rh8 Bxa3 Bc8 b7 Nd7 Bc5 Nb8 Ba7 Na6 Bb8 Nxb8 d4 c5 Kd2 e5 Kc3 g5 Kb3 g4 h4 e4 f4 g3 f6 e3 f7+ Kd7 f5 g2 h6 e2 d6 e1B f6 c4+ Ka3 c3 d5 c2 h5 Ne7 h7 Qb6 h6 Kd8 d7 Qf2 Rh2 Qg3+ Qd3 Rg8 h8Q Rg6 Nc3 Na6 b8N Qg5 Qe4 Bh4 Nd1 Rg7 Nh3 g1Q Bg2 Nb4 Na6 Qg4 Nc7 Qe1 Ne3 Bg3 Nf2 Qh1 Rg1 Bh4 Ne8 Ba6 h7 Rg5 Qg7 Rh5 Qh6 Bg7 f8R Rb8 f7 Bd3 Rh8 Na6 f8Q Ng6 Qc5 Qd1 Rf8 Bd4 Rf6 Nc7 Ra6 Ne6 Bf3 Bg3 Rhg2 Bd6 Rh2 Ke7 d8N Rb1 Rhg2 Be5 Rh2 Nef4 Ne6 Rh4 N6c7 Kd8 Rhg2 Ne6 Rh2 Be7 d6 Bg5 d7 Bgf4 Qed4 Qg2 Bb7 Qc6 Qe4 Qh5 Nfg4 Qf5 Re2 Bh2 Nf2 Qf3 Qc3 Ke7 d8R c1B+ Ka2 Bc2 Rdd2 Bb2 Qcc4 Bd3 Qc5+ Kd8 Kb3 Bbd4+ Ka3 Bb2+
K6R/Q1n1Pkrp/1R3BN1/3N1nR1/p2Q2R1/2r1Np2/2Q1rr2/2Nn3q w - - 0 1 legal: proof: c4 a5 f4 d5 cxd5 e5 b4 exf4 a4 b5 axb5 a4 Na3 Be7 Nb1 Bc5 g3 g5 Bh3 Bb6 Bg2 Ba5 bxa5 g4 Bf3 gxf3 g4 Nf6 g5 Bf5 h3 Bg4 hxg4 Ng8 Kf2 c5 e4 f5 d4 c4 a6 c3 e5 c2 b6 Qc7 d6 Qd8 b7 Nh6 d5 Qd7 e6 Rg8 g6 Nc6 b8R+ Qc8 d7+ Kf8 d8R+ Kg7 g5 Nb4 d6 Na2 a7 Qc6 d7 Qb5 Rb6 Qa5 Rh4 Nb4 Ne2 Rb8 a8Q Na2 Nd2 Rb7 Nc4 Nb4 Ne3 Qe5 Bb2 c1R Qc2 Rh8 Qa7 Rf8 Rg4 Re1 Nc1 Rf6 Rh8 Qd6 d8Q Qc7 Qd4 Na6 Ra3 Qc6 Rc3 Qd5 Rc5 Nc7 Bc3 Ng8 Ba1 Kf8 g7+ Ke8 g6 Re2+ Kg1 f2+ Kf1 Qd8 Kg2 f1N+ Kf3 Qa8 Rd5 Ke7 Bb2 Nh6 g8N+ Ke8 g7 Rg6 Nf6+ Ke7 Nc4 Ne3 g8N+ Kf8 Rc5 Nd1 Nd5 Rg7 Nce3 Rb8 Rcb5 Rc8 Ba1 Ne8 Ra5 Rc3 Rc5 Nc7 Ne7+ Ng8 Ng6+ Ke8 e7 Kf7 Rg5 Nh6 Rc4 Nf2 Kg2 f3+ Kg3 Qc6 Kf4 Nd1 Ke5 f4 Bb2 Qa8 Kd6 f2 Kd7 Qc6+ Kc8 f1R Kb8 Nf5 Rcb4 f3 Rc4 Rff2 Ba1 Qc5 Kb7 Na6 Ka8 Nc7+ Kb8 Qd6 Qf4 Ra3 Bf6 Rb3 Qe5 Rd3 Rcg4 Rc3 Qd4 Qh2 Kb7 Qh1 Kb8 Na6+ Ka8 Nc7+
1Q3nQb/1Q1n1bRB/N1P1NrN1/4R3/rb4Rn/1r4K1/q7/QqqN1k2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 f6 h6 g4 Ba6 g5 Qc7 f5 Qd8 fxg7 Bb7 g6 Bc8 Bg5 hxg5 Kf2 d5 b4 Kd7 c4 Kd6 h4 Ke5 c5 Kf4 c6 a5 b6 e5 b5 e4 f6 d3 f7 e3+ Kg2 d2 h5 a4 b7 g4 b6 a3 h6 a2 h7 e2 Rh3 e1Q Kh2 d4 Be2 g3+ Kg2 Ke3 Ba6 d3 Nf3 Bb4 f8Q Ne7 g8Q Be6 g7 Nd7 b8Q Bf7 b7 Qa5 Qc1 Ke2 Rh4 d1R Qfc8 Ng6 Ng5 Ngf8 Rg4 Qd5+ Kh3 g2 Ne6 Kf1 Nc3 g1N+ Kh2 Qd2+ Kg3 Nf3 Qcc7 Re1 Nd1 Re3 Rb1 a1B Bc4 Ba5 Rb5 Bb4 Qb2 Qf5 Re5 Ra4 Qa2 Bac3 Qa1 Qa2 Bb3 d2 Bc2 Qe4 Nf2+ d1Q Qa7 Ke1 b8N Bg6 Rc5 Ba5 Qab7 Bf7 Na6 Ng6 Qf8 Qc1 g8R Kf1 Qcb8 Bab4 Nd1 Bg7 Re5 Rb3 Qfc8 Bf6 Rf8 Rg8 h8N Rg7 Rg8 Nfh4+ Nc3 Rh7 Bb1 Rh6 Qf8 Rb2 Nd1 Qec2 Qg7 Ngf8 Qh7 Qe4 R8g5 Bg7 Qg8 Rf6 Bc2 Qec4 Bh7 Qcb1 Ng6 Bh8 Ne7 Qcc2 Rg7 Qcc1 Ng6 Rb3+
4q1Qr/bb1KP1n1/3Nn2n/1Q1nkb1N/2nr4/1r1BB3/NQN3B1/1Q2R3 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Ne7 b5 Qd8 Ra4 Ng8 Rb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 h5 g4 b3 g6 f6 g5 h4 g7 c4 g6 f3 b7 b2 b6 f2 Bg2 f1R Nc3 b1N Na2 c3 Nh3 c2 Be3 c1N Nf4 h3 Nh5 Rf5 Re1 Ne7 g8Q h2 g7 Na6 b8Q+ Nc7 b7 h1B Qa4 Ra7 Qb5 Na3 Qb1 Nd3 Qb2 Kd7 d6 Ne6 d5 Nb4 Qb1 Rg5 Qb2 f5+ Ke5 Qe8 Qb1 Kd8 d7 f4+ Kd6 f3 Qb2 Nbc2 Qb5 Nf5+ Kc6 Ke7 Qb1 Qf7 d8N f2 Qb5 Qg6 Nf7 f1N Nd6 N1g3 Qb1 Nh6 Nb5 Nf4+ d6+ Kd8 Bd5 Re5 Bd2 Re4 Nd4 Qe8+ d7 Re7 e4 Ra4 e5 Ne3 e6 Ngf5 Nc2 Rd4 Qe5 Nac4 b8Q Rf7 Q8b2 Ke7 Kc7 Bb7 d8N Be4 Bc6 Rf6 Nf7 Rg6 Qd5 Rg3 Qdb5 Bd3 Bg2 Rf3 Ng3 Kf6 Bc1 Bb4 e7 Bc5 Nd6 Ke5 Nh5 Bde4 Qh7 Rg3 g8B Ng7 Bf7 Bd3 Qg8 Rh3 Bfd5 Bf5 Bf1 Ba7 Bd2 Nd3 Bdg2+ Nc5 Be2 Qf7 Bc1 Nd5+ Kd8 Rb3 Be3 Nce6+ Kd7 Qg6 Bd3 Qe8+
1b1rRQ1n/B3nN2/BBb5/1q2b2q/QB2Q3/5P2/KN3rb1/N1k1bNn1 w - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 cxd5 f4 Qc2 f3 exf3 Na6 Qd1 Nb8 b4 g5 Qc2 h5 Ke2 g4 Ra6 Nd7 Rg6 Nb8 Qd1 g3 Rg4 gxf2 Re4 Bb7 g4 Ba6 g5 Bc8 Rg4 hxg4 Kd3 Kd7 Kc3 Kd6 Kb3 Ke5 h4 Kd4 b6 e5 h5 a5 d6 c5 h6 c4+ Ka2 a4 b7 c3 g6 a3 h7 e4 b5 e3 b6 e2 d7 Kd3 g7 g3 Nh3 c2 Nf4+ Kc4 d4 g2 d5 g1N d6 Nc6 b8N Qe8 d8Q Ra4 b7 Rb4 d7 Qh5 Na6 Rb6 b8B Bb7 Qh4 Nge7 d8B Ne5 g8Q+ Nf7 Nd2+ Kc3 Nb4 e1B Ba6 f1B Nfd3 Bg2 Nb2 Bc6 Ba7 Bh6 Qe8 Bf4 Nf1 Bb8 Qe4 Rg8 Rh3 Nh8 Qf8 Qb5 Bh6 c1Q Nc2 Qcg5 Na1 Qh5 Qda4 Rb7 Rh2 Rd7 Bg5 Rd2 Bdb6 Rf2 Bge3 Rc2 Bec5 Rf2 Qf7 Rd8 Qf8 Qe5 Rh5 Qh2 Re5 Qh5 Ne3 Kd2 Nf1+ Kc1 Bb4 Nd5 Re8 Ne7 Kb3 Nhg6 h8N a2 Nf7 Nh8 Nc2 a1B Ka2 Bd6 Nc4 Bac3 Nb2 Bce5 Na1 Bb8
5Q2/1KQbq3/2bqRbq1/2NNR3/Q1PQnb2/2r2rn1/1N2R3/Bkr3R1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Ke2 a5 Kd3 e5 Kc4 Ke7 Kc5 d5 c4 e4 h4 e3 b4 e2 b6 e1R b5 g3 h5 d3 h6 a4 g7 g2 h7 d2 g6 d4 b7 d3 b6 Kf6+ Kb5 Ke5 f6 Ke4 f7 a3 Qa4 d1Q Rh5 a2 Nh3 g1Q Nf4 d2 Nd3 Na6 Kc6 Nh6 g8R Qe7 b8N Bd7+ Kb7 Nf5 g7 Qg6 Bb2 Ng3 Nc3+ Ke3 Rc1 a1B Rc2 Bb5+ Nd7 Nc5+ Kc7 Ra5 b7 Nce4 b8Q Rf1 Kb7 Rf3 Re5 Ra8 Qb3 Ra3 Qa4 Kd4 Nd5+ Rc3 Ba3 Bb2 Qc7 Ba1 N7c5 Bd7 Ra2 Rc1 Nb6 Kc3 Nb2 Bb5 Qa5+ Kc2 Qa4+ Kb1 Nd5 Qc2 Bb4 d1B Bc3 Qd3 Bd4 Qa3 Bc3 Qed6 Re6 Be7 Re8 Bg5 g8R Bf4 f8Q Be2 Bg7 Rfc3 Re5 Bg4 R8e7 Bgd7 R7e6 Qb4 Bf6 Qa3 Rg7 Rg8 h8Q Qe7 Qh4 Rh8 Qg4 Rhh1 Qgd1 Rf1 Qd4 Rff3 Rg8 Qgf7 Rgg5 Qg6 Rg4 Nf1 Rg1 Nfg3 Nbd3 Qd6 Re2 Qb4 Nb2 Qe7 Na6 Qbd6 Nc5 Ra3 Rf5 Rfe3 Qd3+ Ka2 Nd1+ Bb2 Bc3 Rf3 Qe3 Kb1 Rg5 Rb3 Bd4 Ba3 Ba1 Bb2 Rh5 Bf6 Qd4 Rbd3 Nb2 Rc3 Rhe5 Bbc6+
n1r2Br1/8/2P1R1Qq/k3nbRQ/qrqQ1r2/2K1R1b1/2N2b2/2Q2NNN w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kd2 a5 b4 d5 c4 Kd7 h4 Kc7 b6+ Kb7 f6 Ka6 b7 e5 c5 a4 c6 a3 h5 d3 b5+ Ka5 h6 e4 f7 d4 h7 g3 b6 g2 g7 a2 g6 Qh4 Rh3 Be6 Re3 Qh6 Ba3 Nd7 b8R Ngf6 g8Q Ng4 b7 Nge5 g7 Nb6 Re8 Bc5 b8Q Bf5 Qd8 Rb8 f8N Rc8 Qe6 Rg8 h8Q Bd6 Qh4 Na8 Qg6 Bc7 Ne6 Bb6 Nf3 g1Q Bf8 Qg4 Qhh5 Qgf4 Qc1 Qh4 Kd1 d2 Kc2 d1R Nbd2 d3+ Kc3 Rf1 Ng1 Rf4 Nf1 d2 Nd4 d1R Nc2 Rd4 Re6 Rb4 Rb1 a1Q+ Rb2 Qa4 Rb3 Rd4 Rb5+ Ka6 Rd5 Rb4 Rd2 Qh1 Rg3 e3 Rd3 e2 Qf3 Nf7 Rg5 Bf2 Rde3 Ka5 Qh3 Qd5 Qf3 Qda2 Qe4 Ne5 Qd4 Qh1 Qh2 Rh8 g8N Qad5 Nf6 Rg8 Ne4 Bg3 Nf2 e1B+ Qdd2 Qdb5 Qhh6 Qh2 Nh1 Bef2 Qd4 Qa6 Qh3 Qe2 Qg4 Qh6 Q4h5 Qc4+
3K1Qr1/2QNNnr1/rB1r1Q1q/3b3n/2Pqk3/1BB5/rbN3RN/1B2r3 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 b4 h5 g4 g6 g5 Na6 Ra3 Nb8 Rg3 Nh6 fxg6 Ng8 Rg4 hxg4 f5 Qa5 Kf2 Qb6 Ke1 Qd8 Ke2 a5 Kd3 e5 Kc4 Ke7 Kd5 a4 h4 d3 h5 d6 g7 d2 f6+ Kd7 b6 a3 f7 a2 b7 a1R b5 g3 h6 g2 g6 e4 h7 e3 b6 e2 Na3 e1R Rh2 Nc6 b8N+ Ke7 b7 Kf6 Nd7+ Kf5 b8Q Ra2 Nf3 g1R Qc7 Bb7 Rg2 Qg5 Nh2 Qh6 Bd3+ Kf4 c3 Ne5+ Ke6 d5 Nc2 Nf6 g8N d4 g7 Ba3 f8Q Bb2 Ke7 R8a6 Kd8 Bd5 Ne7 Rg8 Bf5 d3 h8B Nh5 Qe2 Ba8 Qf2+ Bf3 Qfb6 Be4 Qf6 Bd5 Ne3 d1Q Nc2+ Re3 Bd2 Qa1 Be1 d2 Bf2 Ree1 Bb6 d1R Nb4 Rd4 Bb1+ Ke3 Nc2+ Ke4 Qe8 Rf8 g8B Rd3 Be6 Rg8 Qef8 Rdd1 Rf2 R1g7 Rg2 Ba8 Bc4 Rd6 Bb3 Bd5 c4 Nf7+ Ke8 Rg6 Qf1 Bc1 Bb2 Rg3 Qf6 R3g7 Be5 Qc3 Bed4 Qcd2 Be5 Bb2 Bc3 Ng5 Kd8 Qf2 Qa7 Qd4 Qc7 Nf7+
3nb2Q/R2nnbB1/Q2qQq1B/7B/2PNQ3/2b5/1k4Bb/qNr2NKb w - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 f4 b5 axb5 g5 e4 Kf7 exf5 Bg7 f6 Kf8 f5 Ke8 Ra3 Bf8 g4 Bh6 h4 Qa5 Rf3 Qd8 Rf4 gxf4 g5 Bg7 g6 Bf8 Ba3 a5 Bc4 Ra7 Bc1 Rc7 Bf1 Rc3 Qe2 Rg3 Qd1 Rg5 hxg5 Qc7 Nc3 Qb6 Nb1 Qd8 Kf2 e5 c4 h5 f7+ Ke7 b6 Kd6 f6 a4 b7 e4 b5 Ke5 b6 d5 g7 h4 g6 a3 Qe2 e3+ Kg2 h3+ Kh2 a2 Nd2 a1Q Bg2 d3 Qf1 Kd4 Nb1 f3 Bd2 e2 Be1 f2 Ba5 e1B Bb4 d2 Qe2 d1Q Bd2 Ne7 g8Q Bd7 g7 Be8 Bh6 Nd7 b8N Bc3 b7 Nc6 Qa2 f1B Qa6 Be2 Nf3+ Kd3 Nfd2 Kc2 Qh7+ Kb2 g8B d4 Qe4 d3 Nf1 d2 Kg1 Bd6 f8B B2h5 f7 Qf6 Bfg7 Nd8 f8Q Bhf7 Qfe7 Bf4 Nc6 h2+ Kf2 Rh7 Q7e6 Rh8 Rg1 h1B Bh7 Rg8 Nd4 Rh8 Bg6 Bh2+ Bf4 Rh3 Bh5 Rg3 Q6d5 Re3 Qde6 Re1 b8Q+ Qb3 Bf8 Rc1 Bg7 Qb4 Qbc8 Qd6 Qca8 Qg6 Bfh6 Qg5 Qh7 Qge7 Qae4 Qg5 Qh8 d1N+ Kf3 Ne3 Kf2 Nf5 Bh3 Bf3 Bg2 Qf6 Rh1 Bg3+ Kg1 Ne7 Rh4 Bf4 Rg4 Bg3 Rg5 Bf4 Rc5 Be5 Rc7 Bg3 Ra7 Bf4 Bh3 Bh1 Bg2 Bh2+
QBbnR3/R3n2Q/3nR1r1/Q2r1P2/R2qqrqq/6B1/q7/Bk2NK1B w - - 0 1 illegal: No possible last move
b3Rb2/k1qQ4/2bbP1n1/2q1rQb1/Kr1NN3/2Q1QN2/1NB4R/1Rbb4 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 b3 f5 Qc2 f4 Ba3 h6 Be7 Nc6 Qd1 Nd4 Bg5 Nf5 gxf5 hxg5 d4 Kd7 Kd2 c5 Kc3 Kc7 h4 Kb8 e4 a5 e5 c4 b6 f2 e6 g4 d6 g5 d5 a4 Kb4 a3 b7 c3 f6 g3 f7 f3 h5 g4 h6 a2 h7 g2 Nd2 c2 Rb1 a1Q Nc4 c1B Qe1 g3 Qe3 Qa7 Nb2 Bd7 Rh2 Qc7 Bd3 f1B Bc2 f2 Nf3 Bg7 f8Q+ Be8 d7 g1B d8N g2 d6 Bc6 d7 Ne7 Qf6 Bf8 Nf7 Be2 Qf5 f1B Nd6 Bd1 Ne4 Ba6 Ka3 Qc5+ b4 Ng6 d8Q+ Ka7 b8R Bab7 Qd7 Bd6 Rc8 Rb8 Re8 Ba8 Kb3 Rf8 h8Q Rb5 Qhc3 Rh8 Ka4 Rh5 Qh3 Re5 Qf5 Rb7+ b5 Bf8 Qed4 Bge3 Qdd2 g1B Qf2 Bg5 Qfe3 Bd5 b6+ Ka6 Re2 Bh2 Rf2 Rb8 b7 Ka7 Re2 Bhf4 Rh2 Bc6+ Kb3 Rd8 b8N Bg3 Qc8 Rd4 Qd7 Rb4+ Ka3 Rb5+ Ka4 B3f4 Na6 Qb6 Nac5 Bg3 Nb3 Qc5 Re7 Rd5 Re8 Bgd6 Nbd4 Re5 Qh7 Qb7 Qhf7 Qc7 Qd7 Rb4+
5rq1/kN4Kn/2nq4/1rN2QNQ/4r3/N1BB1P1B/RQ4nb/1nqq3B w - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f5 axb5 fxe4 Ra5 g4 Ra6 Qd6 Ra1 Qd8 b4 g3 f3 Bh6 Bd3 Bg7 Na3 Nh6 Qc2 Bb7 Bb2 Rg8 Ke2 Qd7 Rf1 Qd8 Rf2 Ng4 Nb1 Nf6 Qd1 Bc8 Ke1 Rh8 Bc1 Bf8 Bf1 Ng8 Ke2 gxf2 g4 Bh6 g5 Bf8 h3 Bg4 hxg4 Qd6 Bb2 Qd7 Bc1 Qd8 Ke3 Kd7 Kd4 Kc8 Ke5 Kb7 d4 h5 g6 c5 g7 a5 g5 e3 b6 h4 b5 e6 g6 h3 d6 h2 d7 a4 d5 e2 d6 e1N Qd3 c4 Na3 c3 Bd2 c2 Nh3 c1R Bc3 Qg5+ Qf5 Ng2 d8Q Rh5 d7 Nf6 g8B Nh7 g7 Be7 Bd3 f1N Qe8 Nd2 Qg6 Qh6 Ng5 Nb1 Bf7 Bc5 g8B Bg1 Be8 Rh4 Qh5 Qg6 Bgf7 Qg8 Bg6 Rc2 Bf1 Rb2 Bef7 Rf4 Be8 Rbb4 Bef7 Ra5 d8N+ Ka8 b7+ Ka7 Be8 Rbc4 Bd7 Rce4+ Kd6 Nc6 b8N e5 b6+ Ka8 b7+ Ka7 Na6 Rb5 Qf8 Rf7 Nc5 Rff4 Bh3 Rf5 Nc4 a3 Kd7 a2 Ke8 a1Q Na3 Rf6 Bgf5 Qaa2 Bd3 Qad5 Bc8 Nf4 Bg2 Qd6 Bg4 Re1 B4h3 e4 Ba1 e3 Bc3 Bf2 Rg1 Bg3 Bh1 Ng2 Rf1 Be5 Rf2 Rf4 Ra2 e2 Bc4 Re4 Bd3 Rg1 Qh6 e1Q Qh5 Qc4 Qf5 Qc1 Qe6 Rge1 Kf7 Rf4+ Kg6 Ree4 Qf6 Rf5 Kg7 Bg3 Qe5 Rf8 Qf5 Rb4 Bd2 Nh4 B1g2 h1Q Bc3 Qhd1 Bh1 Bh2 Qhf7 Ng2 Qh5 Kb6 b8Q+ Ka5 Nce6+ Ka6 Qbb5+ Ka7 Nb7 Rb3 Nec5 Rb2 Qb3 Qce6 Qc2 Rb5 Qb2 Qg8#
1R4Q1/1bbr2qB/2K5/b1R2nQ1/RP1k2Np/BQ1n1n1q/Q2qR1B1/4r3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 d5 cxd5 f5 exf5 b5 Na3 a4 Nc4 Bb7 Na5 Ba6 Nb3 axb3 a4 Bb7 axb5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 d4 e5 f4 h5 g4 h3 g5 b2 b6 b1N b7 h2 f6 c4 f5 c3 f7 h4 f6 c2 g6 Rh5 g7 Qc7 Ba3 c1Q Bg2 Na6 b8R Rh6 Nf3 Be7 f8Q Bb7 f7 Rh8 Re1 h1Q Re2 Rh7 Qb3 Qh3 Nh2 Qd2 Ng4 Nh6 Qg8 Bd8 f8R Nf5 Rc8 Qe7 Rc5 Ba5 Rb8 Ra7 Ra2 Rh6 Qf7 Re6 g8B Qeg5 Bh7 Qg7 Bc1 Re7 Ra4 Rd7 Ba3 Ra8 Rf8 Re8 Qg8 Nc7 Qa2 Ne6 Qb3 Nf4 Qa2 Re6 Rb8 Nd3 Qf7 Ne7 Qf3 Nf5 Qg3 Nb2 Qgb3 Nd3 Rc6+ Ke7 d6+ Kf7 Kd5 e4 Nf2 e3 Ng4 Bc8 Rc5 Bb7+ Kc4 Ree7 Kb5+ Re6 Nf2 Kf6 d5 Ke5 Ng4+ Kd4 Ra8 Rf7 d7 Re5 d8Q Rd7 d6 Ree7 Rb8 Re4 Rf2 e2 Qdg8 e1B Re2 Re5 Rf8 Bg3 Rb8 Rf7 d7 Ree7 Rcc8 Bgc7 d8Q+ Rd7 Qg5 Rfe7 Rf2 Re1 Re2 Bh2 Rc1 Bhc7 Rc5 Qb2 Qg6 Nd2 Qh5 Nf3 Qg5 Ba6+ Kc6 Qd2 Rc1 Bc8 Rc5 Bb7+
2N1rbQn/1Q6/1R1Rb2q/n5R1/kr2PQR1/7N/Nn3K1p/rnN2Bn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 g5 h4 Bd6 h6 Bc5 h5 Bf8 b3 Nf6 Bb2 Ng8 Bd4 Bh3 Bf2 Bc8 Bh4 gxh4 d4 Kd7 e4 c5 h7 f5 b6 a5 d6 Kc6 h6 c4 b7 Kb5 d7 a4 b4 h3 d5 h2 d6 a3 Qd5+ Ka4 b5 f3 b6 a2 Nh3 f4 Kf2 c3 Rg1 c2 Rg4 c1N Nd2 Nc6 b8Q Ra7 b7 Ne2 Nb3 Nge7 Nc1 Ng6 Qf5 Qc7 d8R Be6 d7 Ng1 Qg5 Rg8 h8N Qd6 h7 Na5 Nf7 Nh8 Qd5 Qc6 Nd6 Qa6 Rb1 a1R Nc8 Ra8 Qbe5 Rb8 Re8 Qd6 d8R Qc6 Rb6 Qd6 Ke1 Qc6 Rd6 f2+ Kd2 f3 Ke3 Ne2 Qf4 Ng1 Bc4 f1N+ Kf2 Ne3 Bf1 Nec4 Re7 Na3 Reg7 N3c4 R7g6 Nb2 R6g5 Ra8 b8N Rg6 Ke3 f2 Na6 Rg7 Nb4 Rb7 Nba2 Rbb8 Bd3 f1N+ Kf2 Nd2 Be2 Nb1 Bf1 Qe8 Qb7 Qg6 Qc7 Qh6 Qg7 Nf7 h8Q Rb7 Qhg8 Nh8 Ra6 Rb6 Qb7 Rb4 Rab6 Rb8 Ne7 Rd8 Nc8 Re8
q4nQB/3K2rQ/BRp2N2/1N6/QbnnNk1n/3B2r1/b1Q1Pn1q/5N2 w - - 0 1 illegal: No possible last move
3b1QB1/6rq/1K2R2r/rp1B1BNR/2b1n2B/1k1P3R/1rn3q1/1RbQ1Q2 w - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 Bd7 cxd5 Bc8 b4 axb4 g4 h5 g5 g6 Na3 Be6 Nc4 Bd7 Ne3 Be6 fxg6 Bf5 Ng4 Bc8 f5 hxg4 Kf2 Kd7 Ke3 Kd6 Kd4 b5 h4 e6 a4 g3 h5 b3 f6 b2 a5 b1R d3 c6 a6 g2 f7 Qc7 g7 Rh6 g6 Be7 f8Q Nf6 g8B Ne4 a7 Na6 g7 Nb4 Nf3 g1R Bh3 Rb2 Bf5 Rg4 Qf7 Bd8 Ng5 Rgg2 Rb1 e5+ Ke3 Kc5 d6 Rg4 Rh3 Be6 d7 Bc4 Bd2 Rg1 Be1 Rgg2 Bh4 Nc2+ Kf3 Kb4 Qf6 c5 Bd5 Ka4 g8B Kb3 Qf7 Be7 d8R Rg1 Rb8 Bd8 Rb6 Rg2 Qf6 Qh7 Re6 Rg1 Nf7 Rg7 Ng5 Nc3 Qf7 e4+ Kf4 e3 Ke5 e2 Kd6 e1Q Kc6 Qe4 Qf8 Rhg6 h6 Qg2 Qf7 Ne4 Kb7 Rc8 a8Q Rc7+ Kb6 Ra7+ Kc6 Ra5 Qb8 Qh8 h7 Rh6 Qf6 Bb6 Qbf8 Bd8 Bf7 Qg8 h8R Qh7 Bg8 Rh5 Bf7 Qg8 Rc1 Rb1 Qf3 Ne3 Rh6 Qh7 Bf2 Rh4 Qa1 Rh5 Kb7 Rh4 Bc6 Bd5 Qg4 Rh5 Bh4 c4 Qf3 c3 Qf1 Bc4 Bd5 c2 Re1 Be7 Bg8 Rb2 Kb6 Bf6 Qc1 Be7 Qd2 Bf6 Rb1 c1B Qdd1+ Nc2 Nf3 Rhg5 Rh5 R5g6 Ng5 Rh6 Qf7 Be7 Qf8 Bd8+
1N3RNr/1rQ4N/K1RP3r/1r1QQ3/7B/2Qb1N1k/1rpR3r/nqnb4 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kb3 Kf7 Ka4 Kf6 Ka5 Kf5 b4 f1B h4 g5 d4 c5+ b6 g3 e4+ Kg4 f5 c4 b5 c3 d6 c2 h5 g2 d7 Nf6 h6 Bd3 h7 Na6 d5 Rb8 e5 Nc5 d6 Nh5 e6 Nf4 e7 Rb7 e8Q Ne2 f6 f2 f7 f1R f8N Nb3+ Ka6 Rf5 Nf3 g1R Qe5 Rg2 Nbd2 Rh2 Ne4 Kh3 Nf6 g4 Ng8 g3 Bg5 g2 Bh4 g1R Rb1 Qf6 d8Q Rg6 Qc7 Na1 Qd2 Bd7 Rhd1 Nc1 Qdc3 Be6 Rd2 Rh6 Qd5 Qg6 Rb4 Qg1 Rc4 Rfh5 Rc6 Bg4 Ne5 Bd1 Nf3 Rb8 b7 Qh1 Ka5 a6 Kb6 a5 Ka6 a4 Qce5 a3 Qc3 Rd8 b8R a2 Rc8 Rd7 Rd8 Bf5 b6 Rg5 b7 Bd3+ Qb5 Rd5 b8N Qg1 Qbc4 Rb5 Qd5 Re7 Nfd7 Qe1 Ndf6 Rd7 Rf8 Qg1 Qd8 Rdb7 Qc7 Qf1 Qce5 Qe1 Rf2 Qb4 Rd2 Qb1 Qe2 Nab3 Qee4 a1R+ Qa4 Ra2 Qa3 Rb2 Qb4 Bf5 Qc3 Na1 Ne7 Rg8 h8Q Rf2 Nh7 Bd3 Qhe5 Rh8 Ng8 Rh2
1rn3B1/3qQ2R/1Q3Qrr/NRNnPq1R/2r3r1/4nK1N/4p2k/1Q2Rb2 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 g4 h5 gxh5 e5 Ba3 e4 axb5 Nf6 b6 Ng8 b5 Bd6 Bb4 cxb4 e3 Be5 fxe5 d4 Bh3 dxe3 Bg2 Qg5 Bf1 Qd8 Ke2 Kd7 h4 Ke6 c4 Kf5 d4 Kg4 h6 Kg3 b7 f5 d5 a5 d6 g5 h5 f4 d7 a4 h7 a3 c5 a2 h6 b3 b6 f3+ Ke1 g4 c6 f2+ Ke2 b2 c7 Nf6 Na3 b1Q Qe1 Nc6 b8Q Nd5 b7 Na7 Rh5 Qe7 d8Q Qd7 Bh3 Kh2 Qe7 f1N Nc4 g3 Na5 g2 Qf2 Rg8 h8Q Rg4 h7 Rg6 Qhf6 Qc2+ Ke1 e2 h8R Nfe3 R8h7 Rg4 Rd1 a1R Qf1 Ra4 Kf2 Rc4 Re1 Nf5 Qb6 e3+ Kf3 Rg6 Qf2 Qb1 Qfh4 Qd3 Qhf6 Rh6 Rb1 e1R Rc1 Re2 Re1 Ra2 Qb1 Raa4 Qbb6 Qc2 Qb1 e2 Qbb6 Nfe3 Be6+ Rh4 Bg8 Rc4 Nh3 g1R Qb1 Rhg4 Qbb6 Qe8 Qb1 Bf5 c8R Qd7 Rc5 Nc8 Rb5 Be6 Qbd6 Rb8 Qb6 Rgg6 Rg7 R1g4 Rh7 Ra8 b8N Qd3 Na6 Rb8 Nc5 Bf5 Ncb3 Be4+ Kf2 Bg2 Nc5 Bf1 Kf3 Q3f5+
B1N3Nq/2QN1Pq1/2Q1BnN1/2r1r2Q/R2n3K/b1p1Qn1n/4q3/3k2Bn w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 b4 Bb7 g4 Qd7 Ra3 Kf7 Rf3 Ke8 Rf4 gxf4 Bc4 Qd8 Bf1 Bc8 h3 Be6 g5 Bf7 Qe2 Bh5 Qd1 Bg4 hxg4 Bg7 Kf2 Bh6 Ke1 Bf8 Kf2 Kd7 d4 Kd6 f6 h5 b6 e5 b5 c5 g6 a5 g5 h4 g7 f3 g6 a4 b7 a3 b6 h3 Kg3 a2 Nd2 a1Q Ne2 c4 Nf4 c3 Bg2 f2 Qh5 f1Q Kh4 Nc6 b8N h2 b7 e3 Nd7 e4 b8Q+ Qc7 Qb5 e2 Qd3 e1N Qe3 Nd3 Bf3 Nge7 g8N Ra5 g7 Nf2 Ng6 Nh3 Rg1 h1N Rg4 Qe2 Bg2 Qb7 Nc4+ Kc7 Bd2 Rc5 Ncb6 Qaa8 Nc8 Qba7 d6+ Kb7 d5 Ka6 Bf3 Ka5 Be1 Ka4 Bf2 Kb3 Bg1 Kc2 Ndb6 Rh7 d7 Kd1 d8Q Q7b7 d6 N3f2 d7 Nd5 Nd6 Ra5 Qe8 Nh3 Qg5 e3 Ra4 Nd4 d8Q Qc7 Bg2 Qf3 Nh6 Qcb7 g8B Re7 Qed7 Re5 Be6 Qab8 Q7e8 Qg7 f7 Nf6 Qc7 Be7 Qb5 Qbh8 Ndc8 Ba3 Qe8 Rac5 Ng8 e2 Qf4 e1N Qe3 Qe2 Ba8 Nec2 Qec6 Ne1 Nd7 Nef3+
N1qr2qR/q3kbB1/2R1b3/3rnR2/Nq1p1P2/2NK1NR1/QQ2r3/4Q1b1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 exf5 b5 axb5 Nh6 g4 Nc6 Be2 Ng8 g5 Ne5 Bf3 Ng4 Be2 N4f6 Bg4 hxg4 gxf6 Rh4 Ne2 Rh6 Ng1 Rh8 Ke2 e5 b4 d5 c4 g5 h4 a5 b6 e4 h5 g3 b7 e3 b8Q a4 b5 a3 f7+ Ke7 b6 a2 c5 g4 c6 g2 b7 g3 f6+ Ke6 c7 Bc5 f8Q Ne7 h6 Nc6 h7 Ne5 f7 Ra5 Nf3 g1Q Rh3 g2 Qg8 Ke7 f8R Be6 Nc3 Qc8 Rg3 Ba7 Rb1 a1Q Bb2 Qa4 Rc1 Qb4 Rf5 Bf7 Qe1 d3+ Kd1 d2 Kc2 e2 Ba1 Nc4 Kd3 d1B Rc2 Qgc5 Bb2 g1Q Rc1 Qf8 Ba1 Bb3 c8N+ Kd7 Nb6+ Ke7 Nba4 Qfc8 Qe5+ Be6 b8N Rb5 Qf1 e1R Nd7 Re2 Qe1 Q5c7 Qd4 Bc5 Bb2 Qa7 Ndb6 Qg2 Qe5 Bg1 Na8 Rc5 Qd4 Bf7 Qdf2 Rb5 Qg7 Rd8 h8R Ba2 Rgh3 Qg6 Rg3 Qh7 Ba1 Qg8 Qg2 Re5 Qb2 Re2 Qd4 Ra5 Qe3+ Be6 Q3d2 Ne5+ Kc2 Qd6 Qb7+ Nd7 Kd3 Bh2 Ne4 Bf7 Qb5 Bg1 Bg7 d4 Rc6 Bae6 Nec3 Qdb8 Qc4 Rd5 Qca2 Qb4 Qdb2 Ne5+
n1nRnB1Q/bb1pQ2Q/7R/n2kN1b1/6BB/1nP3K1/2rb3R/Q2R3q w - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f7 Kd6 f5 a5 g5 h6 Nd2 Ra6 Ndf3 h5 Ne5 Rb6 Ng4 hxg4 Bh3 Kd5 Bf1 Rf6 gxf6 Kd6 Kf2 e5 b4 g5 h4 a4 b6 a3 b7 d3 b5 e4 h5 a2 h6 g3+ Kg2 g4 b6 e3 c3 d2 h7 e2 Rh3 e1B Bc4 Bh6 f8B+ Ne7 f7 Bg5 f6 Nc6 b8R Na5 Bf1 Bb7+ Nf3 Kd5 Bb2 Nc8 Qb1 d1N Be2 Bed2 Ne5 Nf2 Rh2 Ne4 Bc1 Ned6 Ra8 Rg8 h8R Ne8 R8h6 Qc7 Qg6 Qc6 Qh7 Rg7 Rb1 a1N Bca3 Rg6 Rd1 N1b3 Bfe7 Rg7 f8Q Rg6 f7 Re6 Kg1 g2 Kf2 g1N Qfh8 Nf3 f8Q Nfd4 Kg3 Nb5 Bf6 Nbc7 Qfe7 Rd6 Rb8 Na8 Bb4 Na7 Rd8 Nc8 Bc5 Qa4 Ba3 Qe4 Bb4 Qh1 Bc5 Bc6 b7 Re6 b8Q Bb7 Qa7 Rb6 Bd6 Rb4 Nc6 Ra4 Ne5 Ra2 Qeg7 Rb2 Bf8 Rc2 Qe7 Qe1+ Kg2 g3 Bg4 Qh1+ Kh3 g2 Kg3 g1B Qa6 B5e3 Bh4 Bg5 Qf1 Ba7 Qa6 Nc4 Qa1 Nca5
rn3R2/R6n/Q2B1n1Q/1R1nbQqq/2R1PBp1/5Bq1/7k/Kr2Qq1N w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 f3 Nc3 f4 Ne4 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 d4 Ke7 Kd2 Kf6 Kc3 Kg5 h4+ Kh5 e4 a5 b4 g5 Kb2 c5 b6 f2 b5 a4 d6 f3 b7 c4 d5 g3 d7 Kg4 h5 g2 f6 Kg3 h6 g4 f7 Qe7 d8R Ra5 d6 Nf6 d7 Qe8 h7 Ra8 b6 Bg7 f8Q Qh5 Be2 f1N Qe1+ f2 Nh3 g1N Bf3 c3+ Kb1 Rg8 h8Q a3 Qh6 Ne3 Rc8 Ned5 d8R Bh8 Rc4 c2+ Ka2 Rg7 Qc5 Re7 Rf8 Rh7 Be3 c1Q Qca5 Qc3 Qa6 Qce5 Rb1 Qeg5 Ka1 a2 Rb5 Re7 Bc5 Re5 Bd6 Bg7 Qc1 f1Q Nf2 Nh3 Qe1 Bh8 Rg1+ Kh2 Nh1 Qf2 Rf1 Qg3 Rf7 Qgg6 Rfc7 Ng5 Rd7 Ngh7 Rf7 Nbd7 b8B Qg5 b7 Re6 Bf4 Rb6 Bbd6 Bg7 b8Q Rb7 Qc8 Nb8 Qf5 Bh8 Kb2 a1Q+ Kc2 Qd1+ Kb2 Qe2+ Ka1 Qf2 Rbc5 Rb2 Ra7 Bg7 Rg1 Qf1 Ra5 Ne8 Rb5 Be5 Rg2+ Kh3 Rgc2 Nef6 R2c3 Kh2 Rc8 Nbd7 Rf8 Nb8 Rc4 Rb1+
1q1Rb2b/3b1n2/PQBN2B1/1K4Q1/1B3BQR/rr3pR1/k1r1r3/2q2b1Q w - - 0 1 legal: proof: f4 e5 g4 h5 c4 d5 cxd5 a5 b4 axb4 Nc3 Nc6 Ne4 f5 fxe5 f4 Nf2 Nce7 Qa4+ Kf7 Qd1 Nf5 gxf5 Ke8 Ng4 hxg4 h4 Kf7 e4 c5 Ke2 b5 Kd3 g5 a4 g3 e6+ Ke7 e5 g4 d6+ Ke8 h5 b3 e7 Kf7 e8R b2 f6 b4 Kc4 b1B d4 g2 d5 b3 a5 g3 d7 b2 d6 Nh6 Kb5 c4 Ra3 c3 Nf3 g1R Bd3 g2 Rh4 c2 Nd4 Bg7 Nf5 Re1 Qg4 g1R a6 Rg3 Rf8+ Ke6 f7 Kd5 e6 Re2 e7 Rgg2 Be3 c1Q e8B Rh7 Rg8 Bh8 f8B Nf7 h6 Bc2 Rb3 b1B Be7 Qc7 d8Q Qb8+ Qb6 Ra7 d7 Rb7 d8Q+ Bd7+ Kb4 Rg7 h7 f3 Bf4 Rg5 Nd6 Rh2 Rc3 Bca4 Bg6 Bd3 Rc8 Rge5 Bf8 R5e3 Qf6 Rc2 Rd8 Bf1 Be7 Rhe2 Qfg5+ Be5 h8Q Ra3 Qhh5 Bab5 Qgg1 Ba4 Qh1 Bac6 Qhg4 Ba4 Nf5 Bh8 Ka5 Kc4 Bb4 Kb3 Nd6 Ka2 Rg7 Bf5 Bc6 Bd7 Rgg8 Bb3+ Kb5 Bbe6 Rg7 Be8 Rh3 B6d7 Rg3 Rc7 Rh7 Rb2 Rhh3 Rbb3 Rh4 Bf5 Bd7 Rcc2 Bc6 Bfd7
rQn3NR/1rrp1K2/4N3/1r2RQ1Q/4qbRq/n1BP2NR/k3N3/2nn4 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 g4 exf4 b4 Nh6 bxc5 Ng8 Na3 h5 Nf3 f5 Bh3 Bb7 Ng1 f3 Nb1 f4 Kf2 Be4 Ke1 Bf5 gxf5 Qb6 Bg4 hxg4 Ra3 Qf6 Ra1 Qd8 Kf2 Ke7 c4 a5 e4 g5 h4 a4 h5 a3 d3 a2 e5 Nf6 e6 Ra7 c6 Kd6 h6 Kc5 e7 Kb4 e8R Rb7 h7 Bd6 c7 Nc6 c8N Nd5 f6 Nce7 b6 Ne3 f7 Bc7 Qf1 Kb3 f8N Bd6 c5 g3+ Ke1 f2+ Kd2 g2 c6 g4 c7 f3 Ne2 g1R Nbc3 g3 Ne6 g2 Bb2 Nd1 Ng3 Rg8 h8R Rg5 Rc1 a1R R1h3 Ra8 Nce2 Rb5 Rc4 Ka2 Rg4 Bf4+ Kc2 Rh1 Bg7 g1N Bc3 Nf5 Ne7 Nd6 Ng8 Qh4 c8Q Rh2 Qe1 f1N Qc5 f2 Qh5 Nd2 Qf1 Nb1 Re7 Rc7 b7 Nc8 b8Q Rbb7 Qe1 f1Q Qf2 Qg2 Qfc5 Bd6 Qcf5 Na3+ Kd2 Nb2 Ke3 Nd1+ Kd4 Bf4 Nc5 Qc6 Re5 Qa4+ Kd5 Qb4 Ne6 Rh1 N2d4 Ne2 Ke4 Qa4 Kd5 Nc1 Nde2 Nb6+ Kd6 Qe4 Qf6 Re1 Ke7 Nc8+ Kf7 Rg1 Qff5 Rg2 Ng1 Rgb2 N1e2 R2b5
1k1q2qN/2N1nbN1/Q1bK1n1Q/2Q2r2/1qNR3B/2p1prR1/2PR3r/Q7 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 f5 e4 h5 exf5 e4 g4 hxg4 f4 Bd6 Bc4 Be5 dxe5 Ne7 Bg8 Nxg8 Kf2 g5 Kg3 a5 h4 d5 b4 Kd7 e6+ Kd6 b6 c5 b5 c4 b7 Kc7 b6+ Kd6 h5 c3 h6 a4 f6 d4 f5 a3 h7 a2 f7 d3 f8Q+ Qe7 f6 d2 f7 Nh6 Rh3 Ra5 Nf3 Nd7 b8Q+ Kc6 b7 Qd8 e7 Ng8 e8N Ndf6 Nc7 Be6 Qc8 Rf5 b8R Ne7 Rb4 e3 Rd4 Kb6 Ba3 Ka7 Qa6+ Kb8 Qh6 Rf8 Qdf1 d1B Nh4 Bf3 h8N Bc6 Nd2 Bed5 Rc1 a1Q Nc4 Qb2 Rcd1 Qb4 R1d2 Be6 Qa1 Rf3+ Kg2 g3 Nf5 g4 Ng7 Bed5 Ng6 Rh8 f8Q Rh7 Nh8 Bf7 Kh1 g2+ Kh2 g1R Rg3 Rgf1 Kg2 Qb5 Bd6 Qa4 Bf4 Qb4 Bg5 Rf5+ Kh2 R1f3 Bh4 Ned5 Qc5 Ne7 Rg1 g3+ Kh3 Nd7 Kg4 g2 Rf1 Rh3 Rf3 g1Q+ Rg3 Rh2 Rgg2 Nf6+ Kg3 Rg5+ Kf4 Rg3 Ke5 Rf3 Rg3 Qg2 Rh3 Qg4 Rg3 Qgc8 Qg6 Rh5+ Qg5 Qg8 Kd6 Qcf8 Qg6 Rhf5 Qh6 Qd8#
2nr2RB/b4b2/5QnB/2N1BP2/1R2Qqk1/rbRQ3p/p4B1r/Q4b1K w - - 0 1 illegal: No proof kernel
Q6r/1b1Q3R/BPp2Qr1/pn6/1k4q1/2R1Nb1R/2nQN2K/bN2n1Rn w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 Kg2 Kd6 h4 Kc5 d4+ Kb4 f6 a5 g7 e5 h5 g4 f7 g3 b6 e4 d6 e3 b7 c6 h6 e2 h7 Be6 d7 Ra6 d5 Ra7 d6 Nf6 g8N Qc8 d8R Ne4 d7 Nd6 Nf6 Na6 b8Q+ Nb5 Qa8 Bg4 Rh3 Bg7 f8R Rc7 Rf7 e1N+ Kh1 f3 Ne2 g2+ Kh2 Bh5 Ng4 g1N Ne3 f2 Qd2+ Bc3 Ra3 Bf3 Rg8 Ra7 d8Q Qg4 Q2d7 Ba1 Rgg7 Rc7 Re7 Rc8 Rg6 Rg8 h8Q Rg7 Rg5 Rg6 Reh7 Rb8 Qhf6 Rc8 Nec3 Ne2 Qd2 Rb8 Q8d7 Ng3 Bd3 f1B Ne2+ Nc3 Bb5 Rh8 Bc4 Nh1 Bd3 Qe4 Rg1 Qg4 Bb5 Nc5 Ba6 Ne6 Ra2 Nd4 Rc2 Kc5 Rc1 Ndc2 b4+ Kb6 b5 Kc5 b6 Kb4 Q2d5 Nb5 Qa2 Ncd4 Rc3 Ndc2 Nc1 Bd3 Ne2 Bf5 Qad5 Be6 Qd1 Bf5 Q7d2 Bc8 Qd7 Bb7 Q1d3 Nca3 Qd2 Nac2
2q2QN1/2Qq4/2Q1NBNB/r1q3nk/r1n1pK2/5p1P/1Bb1q1Qb/3RN3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 b4 f5 b3 axb3 Be6 b4 Bd7 b5 Bc8 b4 Ne7 e4 Kd7 b6 Nec6 Ba6 Nd4 Ra3 Ne6 Rf3 Nc5 Rf4 exf4 e5 Ne4 e6+ Ke7 Bb5 Nf6 Bd7 Kd6 e7 Ng8 Be6 fxe6 Kf1 Kd7 Kf2 Rh7 Ke1 Rh8 Ke2 Ke8 Kf3 Kf7 e8Q+ Kf6 d4 Kg5 b5 c5 f6 a5 f7 c4 d6 e5 d5 a4 d7 a3 h3 a2 d6 a1Q b7 c3 h6 c2 h7 Qa2 b6 Ra5 Qd2 Nc6 b8B Nf6 b7 Kh5 Qg2 g5 Bb2 c1Q Nc3 Ne4 Nd5 Ra4 Bc7 Na5 b8Q Nc4 Ne7 Ba6 Ng8 g4+ Ke2 g3 Kf3 Qc8 d8N Qd2 d7 Bc5 Ne6 Ra5 d8B Qdd7 Bf6 Ng5+ Ke2 e4 Nf3 Bb6 Rd1 Bg1 Ne1 Bb5 Bcd8 Ba4 Qc7 Bc2 Bg7 Ra4 Bdf6 Ra5 Bh6 Ra4 Ne7 Rg8 h8N f3+ Kf1 Rg7 Nhg6 Rh7 f8Q Rf7 Bfg7 Rf5 Ng8 Rfa5 Bgf6 Bb6 Qf2 g2+ Kg1 Ba7 Kh2 Bd4 Kg3 g1Q+ Qg2 Ba7 Nd3 Qc5 Kf4 Qf2 Qee7 Qa3 Qed6 Qe2 Ne1 Bg1 Qdb6 Qc5 Qbc6 Bh2+
1N5B/Q1Q1qbN1/rb2q3/2qr4/3RnK2/1B3Ppk/BQN2p2/2rb1N1B w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 f5 g4 fxg4 c4 e5 cxd5 e4 f3 e3 Ra3 Be7 Ra6 Bf8 Ra1 g5 h4 g3 Rh2 g4 Rf2 Nd7 Qc2 exf2+ Kd1 Bh6 Qa4 Bf8 Kc2 Nc5 Qb3 Ne6 Qa4 Ng5 hxg5 Qd6 Bb2 Be7 Kb3 Kd7 Nh3 Nf6 Bg2 Bf8 Na3 Bh6 Rh1 Bg7 Bf1 Re8 Bc1 Rh8 Ng1 Ng8 Nb1 Bf8 Kb2 Ke8 Qd1 Qd7 Kc2 Qd8 Kd3 Ke7 Ke3 h5 d4 a5 b6 c5 g6 Kf6 g7 Kf5 b7 h4 b8Q c4 b5 a4 b6 a3 b7 a2 d6 a1Q d5 g2 d7 c3 d6 g3 Qd2 c2 Bb2 c1R Qa7 h3 b8N Qc7 d8Q h2 d7 Qc6 Qdc7 Qd6 d8N Qg6 Ne6 Nf6 g8B Rh5 Ng7+ Kg5 Bb3 Kh4 Kf4 Be6 e4 Qa5 e5 Bf7 e6 Qc5 e7 Rd5 e8B Ne4 Ne2 g1Q Bg2 Qe1 Nd4 Qe6 Nc2 Qe2 Re1 h1B Rd1 Be7 Qb4 Bd8 Nd2 Qee7 Bd4 Qa6 Nf1 Qae6 Qd6 Ba5 Qdc7 Bb6 Bc3 Qc4 Rd4 Qcc5 Qab7 Ra3 Qa7 Ra6 Bea4 Qec6 Ba2 Qce6 Bh3 Bg2 Qb2 Bg8 B4b3 Bf7 Nd2 Bf1 Bg2 Bb5 Nf1 Be2 Bh1 Kh3 Nh5 Qec6 Rd1 Ba5 Bh8 Qce6 Ng7 Bb6 Rd4 Bd1
4b3/NB1Qrp1p/Kr3BR1/2q1qrN1/1bP2k2/2Q1N3/2qNb3/2BQB1n1 w - - 0 1 legal: proof: f4 b5 d4 e5 dxe5 c5 h4 g5 a4 gxf4 axb5 Qe7 g4 Bg7 b4 Nc6 h5 Bf8 g5 Qd8 Ra6 Nce7 Rd6 Ng6 Rd4 cxd4 hxg6 Qf6 Rh2 Qe7 Rh1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 e4+ Ke6 b6 a5 Kb5 d5 c4 a4 g7 d3 g6 a3 b7 d4 b8B f3 Nh3 a2 Ng5+ Kd7 e6+ Ke7 e5 a1R Bg2 f2 Nd2 f1Q Rg1 Qf6 Bb7 Nh6 g8Q Qd6 g7 R1a7 Bc7 Qf2 Ba5 Nf5 Rg2 Nh4 Rg4 Ke8 e7 Kd7 e8N Nf3 Nc7 Ng1 e6+ Ke7 Rg2 Kf6 e7 Ke5 e8Q+ Kf4 Qd7 Qe5+ Kb6 Rb8 b5 Bb4 Qgd8 Re8 g8N Re7 Nf6 Qfe3 Qh8 Raa8 Ng4 Ra7 Nb1 d2 Rg3 Qf2 Ne3 d3 Rg2 Qd5 Qc3 Qe5 Qdc2 d1Q Nd2 Qh5 Qd1 Qhe2 Nb1 Qc2 Nd2 Ba3 Bb4 Ra4 Ba5 Bb4 Ka6 Ra1 b6 Rb1 Ndf3 d2 Nb5 Rb2 Na7 Ra8 Qe2 d1B Nd2 Rb1 Qe1 Be2 Qd1 Rb8 Nge4 Rb2 Rg6 Rb3 Ng5 Rb1 Qb5 Bd7 Qc6 Be8 Qc7 Ba3 Qd7 Rb5 Bb4 Re6 Be7 Bb4 Bf6 Ra8 Bf3 Re7 b7 Rc8 b8B Rcc5 Bb7 Rd5 Nef1 Qc5 Bd6 Qc7 Bc5 Qc8 Bf2 Qc5 Be1 Qee4 Qch3 Rf5 Qc3 Qee5 Ne3 Rb6#
4nq2/7r/N1Q2N2/3Rnp1q/n1p2B1P/Q1QbRN1k/2rrn1R1/N1R3K1 w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 h5 axb5 Bc5 Bh3 Bf8 g5 Be7 Bg4 d5 cxd5 Bf6 gxf6 exf4 Kf2 hxg4 Kf1 Nc6 Ke1 Nb8 Kf2 Kd7 e4 g5 d4 c5 b4 a5 h4 c4 e5 a4 b6 a3 f7 f3 f8Q a2 b7 Nf6 d6 Ke6 b5 Ra4 b6 Nbd7 b8Q Rh7 b7 Nb6 d7 Ne8 Na3 g3+ Kf1 f2 Bf4 g4 Qb3 Ra7 Re1 a1Q Nf3 Na4 Nc2 Qd1 Na1 Qe7 Qh8 Qf8 d8R Ra5 Qe3 Rd5 Qa3 Rdd7 Kg2 f1R Qc7 Rf2+ Kg1 g2 b8N Rc2 Na6 Bb7 d5+ Kf7 d6 Kg6 e6 Kh5 e7 Be4 Qf6 Bd3 Qfc3 Qe2 Qc6 Qd1 Kh2 g1N+ Re2 g3+ Kg2 Nf6 e8N Kg4 Rb8 Rd8 Rb3 Rdd7 Rd2 Ne2 Re1 Rd8 Kh1 Kh3 d7 Ne4 Rb1 Nd6 Nf6 Ne8 Rc1 Nd4 Nc5 g2+ Kg1 Qe2 Na6 Qd1 Kf2 g1N Re4 Nde2 Re3 Rb8 d8R Rbb2 Rd5 Ra2 Ne1+ Nf3 Kf1 Ng3+ Kf2 Ne5 Kg1 Qh5 Rg2 Rd2 Nf3 Ne2+ Kf2 Rac2 Kf1 Nd4+ Kg1 Ne2+
q1Q5/1P2n2N/pN3BQn/qQ3nR1/1rBQp3/b1K4B/5Nb1/1bkB1n2 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 f5 f4 fxe4 c4 Bf5 cxd5 Bd7 f5 Bh6 Ra3 Bc8 Rf3 Bf8 h4 a6 g4 Nc6 h5 Nb8 Rf4 gxf4 g5 Ra7 Be2 Rb7 Bc4 Rb6 Bf1 Rg6 hxg6 Be6 Bb2 Bd7 Bc1 Bc8 d4 Kd7 Kd2 Kd6 g7 h5 f6 c5 f7 e5 g6 f3 b6 h4 b5 h3 b7 f2 b6 h2 Qg4 e3+ Kc3 e2 Nd2 e1N Bh3 f1B Bb2 Nc6 b8Q+ Qc7 b7 Be7 f8N c4 Nh7 Nh6 g8B Bf5 g7 Bb1 Qbc8 Nf3 Qg3 Bg2 Qg6+ Bf6 Bge6 Be7 g8B Nh4 Bhg4 e4 Nh3 N4f5 Rg1 h1N Bd1 Nhg3 Nf2 Nf1 Qce8 Bf8 Bgf7 Nce7 Qb5 Bh1 Rg5 Bg2 Nf3 Qc8 Ne5 Qa8 Nd7 Rg8 Nb6 Rg7 Kb4 c3 Bg8 c2 Kc3 Rf7 Bd7+ Rf6 Bf7 Ng7 Bh3 c1Q+ Kb4 Qf4 Kc3 Qe5 Bg8 Ngf5 Be6 Kc7 d6+ Kd8 d7 Kc7 Bg8 Kd6 Bc4 Qc5 d5 Ke5 d8Q Kf4 d6 Ke3 d7 Rd6 Be2 Rd4 Qc8 Qe5 d8Q Qd5 Kb4 Kd2 Bd1 Qe5 Ba1 Kc1 Kc3 Qd5 Bd3 Rb4 Bc4 Qc5 Qd4 Qd5 Bd3 Qa2 Bc4 Qa5 Qdd7 Ra4+ Kb3 Nc6 Bf6 Ba3 Qd4 Rb4+ Kc3 Nce7
1kr3b1/2N1r1N1/1bK2rnB/4NPbR/pR3p2/bn3NR1/3QR3/1Q2b1Q1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Bh3 f4 Ra2 Qg5 Ra1 Qf5 gxf5 Kd7 Bg4 hxg4 Qa4 Ke7 Qd1 Ke8 Kf2 Kd7 d4 a5 b4 c5 h4 Kc7 e4 g5 b6+ Kb7 e5 a4 b5 c4 d6 c3 d7 c2 d8Q Bh6 e6 Rh7 h5 Re7 d5 Bd7 d6 Ra7 Ra2 Nc6 Nc3 Bg7 h6 Ra6 h7 Nb4 h8N Be5 Rh5 Bf6 Nf7 Re8 e7 Bc8 d7 Nc6 Bb2 c1B Nd5 Na5 Nc7 Nb3 Ne5 Kb8 b7 Rb6 Bd4 Ba3 Re2 Rf8 e8N Ne7 Bc5 Ng6 Ng7 Re8 Qb1 Re7 Qg8 Ra6 d8Q g3+ Kf1 g2+ Kf2 g4 Qd2 Bg5 Bb4 Ka7 b8R Be6 Ra8+ Kb7 b6 Bc4 Rd8 Bf7 Rd3 g3+ Ke1 f2+ Kd1 f1R+ Kc2 Nc1 Kc3 Nb3 Ngf3 g1B Rde3 g2 Bc5 Na1 Kd4 Rc1 Bb4 Bc4 Kc5 Bf2 Kd6 g1B Rb3 Nf8 Rc3 Kc8 Kc6 Be1 Rce3 Nb3 Rc3 Ra5 b7+ Kb8 Rd3 Bb6 Bc5 Ka7 b8R Ng6 Bb4 Rd5 Bc5 Rdd7 Rc3 Rf7 Bf8 Rde7 Rd3 Bg1 Rb4 Bb6 Ng1 Kb8 Rg3 Rc3 Ngf3 Rf6+ Nge6 Rd3 Bh6+ Rd8 Qg7 Rc8 Qg8 Rff7 Ng7 Rff8 Qgd5 Rff7 Qc5 Rff8 Qcd4 Bg8 Qg1 Rf6+
nb1k1NbQ/3qR2Q/4BB2/1PbQ1pR1/R2R3r/b2bK2p/2BQ4/2br4 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 d4 g6 dxc5 Bg7 f5 Bh6 f6 Bf8 h4 Kf7 g4 Qb6 h5 Ke8 g5 Qc7 Nc3 Qd8 Nce2 Nc6 Nd4 Ne5 Nf5 gxf5 Ra4 Nh6 Ra1 Ng6 hxg6 Ng8 Kf2 e5 b4 h5 c4 a5 b6 d5 c6 h4 c7 a4 f7+ Kd7 g7 h3 b5 d4 g6 d3 b7 d2 b8R a3 c5 a2 Rb7 Rh4 Bd3 Ne7 g8R Nd5 g7 Nb6 Nf3 e3+ Ke2 e4 c6+ Ke7 Nd4 Be6 c8B+ Qd7 Bc2 Kd8 Bb2 Ra3 Qc1 Rd3 Rd1 Na8 Ra7 Bd5 Ra4 Bc4 Rb1 a1B c7+ Ke7 Bc3 Bb2 Ne6 Ba3 Rbb4 Ba2 Re1 Rd6 Rd4 d1B+ Kf1 e2+ Kf2 Bc4 Ke3 Bd3 Qd2 Bc1 Ba6 Ba3 c8Q Bc1 Qc5 Ba3 Nf4 Kd8 Ng6 Bc1 Bc8 Rd5 Rg1 e1B Rg5 Bg3 Bb2 Rd6 Qd5 B1e2 Bc3 Bc4 Rh8 Bed3 g8Q Ba2 Rh7 Be5 Kf2 e3+ Kf3 e2 Ke3 e1B Rg7 Bf6 Qh7 B6e7 Bb2 Bg3 Ba1 Qb7 Be6 Rd7 Bc3 Bea3 Bb2 Bfc5 f8Q+ Kc7 Qf6 Bh2 Re7 Kd8 Nf8 Bb8 Qfh8 Rd6 Bf7 Qd7 Ba1 Rg6 Be6 Bac4 Rh5 Rg1 Rg5 Rd1 Bg8 Bf1 Qe6 Bcb4 Re4 Qd6 Bf6 Bfd3 Rd4 Bc5 Qe4 Bf7 Qf3 Qd7 Qd5 Be8 Be6 Bf7 Ra5 Bg8 Ra6 Rh5 Ra4 Rh4
B3b1nB/r7/1QKB4/Ppn4n/1p6/B1b2Qn1/N2n1Rbr/k1N1QN1N w - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 axb4 e4 f5 exf5 g5 f4 Ra4 f6 Kf7 f5 Ke8 a3 Ra8 g4 Be6 h4 Bf7 a4 Be6 h5 Qc8 Ra3 Qd8 Rf3 Bc8 Rf4 gxf4 g5 Qd7 Bc4 Qe6+ Be2 Qf7 Bf1 Qg6 hxg6 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kd6 g7 h5 a5 b5 g6 c5 f7 e5 f6 f3 Nc3 c4 Nge2 f2 Na2 h4 Qe1 c3 Rh2 c2 Bg2 f1B Ba3 h3 Nec1 Nh6 g8N Nc6 g7 Nb8 Ne7 Nd7 g8N Bg7 f8Q Ra7 f7 Rh7 Nf6 Ng8 Bf3 Bg2 Ng4 Bb7 Nf2 Bc6 Nh1 Ndf6+ Kd3 Nh5 Ke4 Be8 Nf5+ Kc7 d6+ Kc6 d5+ Kc5 d7+ Kc4 d8Q Rh6 Ne2 Kb3 d6 c1N Kd5 e4 d7 e3 Nfg3 Bc3 Qb6 Nd3 d8B Nc5 Nf1 Kc2 Nec1 Kb1 Bh4 e2 Bf6 Ka1 Bh8 Rh7 Qe7 Rh6 f8B Rh7 Qf2 e1N Qeh4 Rh6 Bd6 Rhh7 Be4 Nf3 Qf6 Nd2 Qe1 Bf3 Rf2 Bg2 Qf3 h2 Nhg3 Bg6 Kc6 h1N Nge2 N1g3 Bd5 Nge4 Neg3 Bf7 Nh1 Neg3 Bc7 Nf4 Bd6 Rh2 Be6 Nfh5 Bc8 Ncb3 Bb7 Nc5 Ba8 Be8+
b1B2Q1q/n3p2Q/3nB1b1/1n6/1k1NrN1p/1Nrp4/1PQK2RB/4NQb1 w - - 0 1 legal: proof: e4 c5 g4 b5 a4 f5 axb5 Bb7 exf5 Bc8 d4 cxd4 h4 g6 h5 g5 Ra3 h6 Rah3 Nf6 Rh4 gxh4 g5 Ng8 gxh6 Ba6 Be3 Bb7 Bc1 Bc8 c4 d5 f4 Kd7 c5 a5 h7 a4 h6 d3 c6+ Kd6 c7 Kc5 b6 a3 f6 d4 f5 a2 f7 a1N b7 Ra5 f6 Bg4 c8B Bf3 Bf4 Kc4 Bh2 Nc6 b8N Bh5 Nf3 Na7 Qc2+ Kb4 Nbd2 Nb3 Bfh3 Ra4 Rg1 Bg6 Rg2 Bg7 f8Q Qe8 f7 Nf6 Kd1 Ne4 Ne1 Nd6 Bhe6 Rg8 h8Q Be5 Ndf3 d2 h7 Bg3 Ke2 Bf2 Nd7 Bg1 Nc5 Qd8 Qf6 Rh8 Qff5 d1B+ Kd3 Rg8 h8Q Ra3 Qh7 Qe8 Ng5 Bf3 Nh3 Ba8 Nf4 Qd8 Ke2 d3+ Kd1 Nd4 Kd2 Rc3 Nb3 N4b5 Qh3 Qc7 Qf3 Qb6 Qf1 Qd8 Qfh6 Qf8 Ne2 Bh5 Ned4 Qg7 f8N Qh8 Ng6 Rf8 Q6g7 Rf4 Qf8 Re4 Nf4 Bg6
3qKN2/bB1Qp2Q/2p2QrN/rN1QN1R1/B7/b3B2p/3bPn2/k4q1n w - - 0 1 legal: proof: c4 a5 b4 f5 g4 fxg4 a4 d5 cxd5 b5 axb5 Nf6 b6 Ng8 h3 g5 b5 g3 Ra3 g2 Rg3 g4 Rb3 g3 Rb4 Bg4 hxg4 axb4 f4 Kf7 d4 Kf6 Kd2 h5 Ke3 h4 Ke4 h3 f5 b3 g5+ Kf7 Ke5 b2 b7 Ra3 d6 Rh7 g6+ Kg7 Ke6 Rh4 d7 Rc3 d5 Rh5 d6 Rh4 b6 Rd4 f6+ Kh8 Kf7 Rc5 g7+ Kh7 Nc3 b1Q Be3 Rg4 Nb5 Na6 b8Q Rg6 b7 Nb4 Nf3 g1B Bg2 Nd3 Ne5 Nf2 Qd5 Qf1 Bf3 Bh2 Rg1 g2 Qc8 Bg3 b8Q Nh1 Qb6 Be1 Qd3 Bb4 Bb7 Ba3 Qf5 Rd5 Qd4 c6 Qde4 Qb6 d8Q Nh6+ Ke8 Ng4 f7 Ngf2 g8B+ Kg7 d7 Qd4 Qg5 Qd2 Qh6+ Kf6 Qef4+ Ke6 Qh7 Bh6 Qf3 Rc5 Qf6+ Kd5 f8N+ Ke4 Bb3 Qd6 Na7 Ra5 Nb5 Qd5 Ba4 Qdd1 Bd4 Bd2 Be3 Kd5 Ng4 Kc4 Nh6 Kb4 Qcc7 Kc4 Qce5 Kb4 Qc8 Kc4 d8N Kb4 Ndf7 Kc4 Nd4 Kc3 Qd7 Kb2 Qed5 Ka1 Ne5 Ng3 Rh1 g1B Rh2 Ngh1 Rg2 Qb3 Rg5 Qb6 Nb5 Qd8+ Kf7 Nd3 Bf4 Ba7 Be3 Qb6 Ke8 Ndf2 Q5d6 Qc7 Qd5 Qd8+
1NK5/1P2nq1k/1NR1qr1b/2R5/1pQ1N2b/1p2RNQ1/2p3nQ/1BrRn3 w - - 0 1 illegal: No possible last move
N7/kr2QqPB/rN4B1/2n1B1Kn/1p2n1RQ/1Qp1N3/bbQB2np/8 w - - 0 1 legal: proof: h4 f5 a4 g5 hxg5 a5 e4 d5 exf5 d4 Ra3 d3 b4 axb4 cxd3 bxa3 d4 Nc6 d5 Nb8 Ke2 Kd7 Ke3 b5 Kf4 h5 d4 c5 g4 Kc7 f6 Kb6 a5+ Ka6 d6 a2 f7 a1N d5 e6 d7 h4 g6 h3 g5 c4 g7 c3 g6 h2 d6 Qb6 d8Q e5+ Kg5 e4 f4 e3 d7 e2 f5 e1N f6 Rh4 Nh3 Qf2 Qc2 Rh7 Rg1 Ra7 Nf4 Nb3 Rg4 Qg2 Bd3 Rc7 Nd5 Nd4 Ne3 Ne7 g8B Nef5 g7 Qe4 Qe7 Nd6 d8Q Rh6 Bd2 Ng2 Bh7 Rb7 Na3 N4f5 Nac4 Qe6 Nb6 Ng3 Bdg6 Ka7 a6 Nh5 Qb3 Qc4 Qe4 Bd7 Qec2 Be6 Qe7 Nd7 Qd8 Be7 f8Q Bg8 Qf7 Bf8 Qfe7 Nc5 f7 Qe6 Qf6 Be7 f8B Qf7 Qe8 b4 Qd7 Bd8 Be7 Bc7 Qf4 Bd8 Bf6 Bc7 Qe7 Nde4+ Kf5 Be5 Qg3 Bf4 Qh4 Qe8 Be5 Bg5 Qa4 Ba2 Qab3 Qf7+ Qf6 Nf2 Nbc4 Ncd3 Bc1 Rb5 Nd1 Qb7 Bf7 Ka8 a7 Ne4 Qd6 Bd2 Nde3 Ndc5 Qe6 Qd5 Qee7 Rb7 Be8 Ra6 Beg6 Nef6 Kg5 Qf7 Bb2 Bc1 Ba3 Rd7 Nb6+ Kb7 a8N Ka7 Bf5 Rb7 Bd3 Bb2 Bdg6 Ba1 Bc1 Bb2 Bd2 Nfe4+
1n1N1Nbr/3R1QNp/5Rnp/2q1r3/3p4/1q1Qq1PR/2N2n2/1kBQR2K w - - 0 1 legal: proof: e4 b5 d4 d5 h4 f5 a4 c5 dxc5 Kd7 axb5 Ke8 h5 Qc7 h6 gxh6 e5 Bg7 Be2 Qd8 Bd3 Bf6 Be4 fxe4 Bf4 Bg5 Bc1 Bd2+ Ke2 Ba5 Kf1 Bc7 Ke1 Bd6 exd6 Qb6 Be3 Qc7 Bc1 Qd8 Kf1 Kf7 b4 Kg6 c4 Kf5 f4 e5 d7 a5 g3 e3 Kg2 Ke4 b6 e2 f5 e1Q b5 d4 f6 a4 c6 a3 c5 a2 c7 Ra6 b7 Rb6 c6 Qb4 f7 Qbf8 Ne2 Qde7 d8N Qg5 Nf4 Qf6 Nh5 Q6d6 Rh3 Bd7 c8Q Qde7 c7 Re6 b6 Qee8 Na3 Ne7 Kh2 Ng6 Nc2 Qc5 f8N Bc6 Kg1 Bd5 Ng7 Re7 Kg2 Bg8 Kh1 Qf7 Qd7 Qb3 Rb1 a1Q c8R Qac3 Rc6 Qe3 Rf6 Re6 Qf7 Re7 Qh5 Kd3 Qd1+ Kc3 Ra1 e4 Ra7 Re5 Ra1 Qd2 Rb1 e3 Ra1 Nc6 b8Q e2 b7 e1N Qa7 Qg5 b8R Nd3 Qa6 Qe3 Rb7 Nb8 Rd7 Nf2+ Kh2 Qbd5 Qaf1 Kb3 Rb1+ Ka2 Qfd3 Ne4 Kh1 Qe6 Rb6 Qb3 Rf1 Kb1 Re1 Qbb4 Rc6 Qb3 Rf6 Nf2+
B1kb1rQB/B3n3/p4r2/3nRnq1/2r4p/1NQ1N1P1/1N2BpN1/2n3QK w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 f4 gxf4 c4 e5 cxd5 Bd7 h3 Bg4 Ra3 e4 Rf3 exf3 hxg4 Bd6 Bb2 Bc5 Bc1 Bf8 Kf2 Kd7 e4 c5 d4 h5 e5 f5 d6 h4 g5 c4 g3 c3 d5 c2 e6+ Kc8 e7 a6 e8N Qe7 d7+ Kd8 b6 Nf6 g6 Ra7 g7 Qe5 g8B Rh7 b5 Rh6 b7 Qd6 b6 Nh7 Bb2 c1R Be2 Ra8 Nd2 Ng5 Nc4 Ra7 Bh8 Re6 Ne3 Rc6 Nh3 Rf6 Kg1 Qc5 Nd6 Nf7 Nc4 Be7 Nb2 f2+ Kh2 f3 Re1 f1N+ Kh1 f2 Nf4 Qb5 Nfg2 f4 Qc2 f3 Qc3 Nh6 Bh7 Rc5 Be4 Nc6 b8B Rc4 b7 Ra8 Ba7 Nf5 b8N Kc7 d8Q+ Kb7 d6 Nd2 d7 f1N Bd5 f2 Qg8 Nb3 d8Q Nc1 Nd7 Rc8 Qda5 Rcf8 Nc5+ Kc8 Qa1 Bd8 Nb3 Nce7 Ba8 Qa5 Rd1 Qe5 Rd5 Qf4 Re5 Qg5 Nd5 N1e3 Qb1 Nc2 Nde3 Nb4 Qa1 Nbd5 Qb1 Na2 Qg1 Nc1
2r1Bn2/BQ1p1n1N/1K3b2/n4R2/2BR1P1k/3QR1p1/p2q1bQ1/1bB1nQ2 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 e4 h5 exf5 Nh6 a4 Nc6 Nc3 Ng8 Nd5 Nb8 f6 cxd4 Ne3 b5 axb5 Ra7 Bc4 Rc7 Be2 Rc5 Bf1 Rf5 gxf5 Rh6 Ng4 hxg4 Nh3 Rh7 Ng1 Rh8 Kf2 Kf7 c4 g5 h4 e5 b4 a4 c5 d3 Ke3 d2 h5 a3 b6 a2 b7 g3 h6 g4 h7 g2 c6 e4 Kd4 g3 b5 e3 c7 e2 b6 e1N Nh3 Nd3 Be2 Be7 Ng5+ Ke8 f7+ Kf8 Re1 Kg7 f8R Kh6 f6 Ba3 f7 Be7 Bh5 g1B+ Re3 Nf6 Qf1 Rg8 h8Q+ Nh7 Qg2 Na6 b8B d1N b7 N1f2 Ba7 Nh3 b8Q Bb7 c8B Be4 Qb7 Qa5 Kc4 Qc3+ Kb5 Nab4 Kb6 Bf2 Qd4 Qc2 Qf1 Ne1 Qdd3 Qd2 Rb1 Nc6 Rb4 Bf5 Rd4 Na5 Qbg2 Bf6 Ba6 Be4 Bc4 Bg6 Ra8 Nf8 Nh7 Bf5 Rc8 Be4 Rc5 Ng5 Rf5 Rh8 Qb3 Bb1 Qbd3 Nfe6 Qb7 Rc8 f8Q+ Bg7 Qfa3 Bf6 Qb2 Nf8 Be8 Nf7 Ng5 Kh5 Nh7+ Kh4 Qbg2 Qc2 Qb5 Qc3 Qbc6 Qc2 Qb7 Qd2
qn1B1kB1/1pQ3R1/5NQP/qb2bQ2/1b1Rp1RQ/Bp5r/B2K3b/n7 w - - 0 1 legal: proof: c4 g5 d4 a5 f4 d5 fxg5 Kd7 cxd5 Nf6 b4 axb4 e4 Ng8 d6 Kc6 d7 Ra4 Nd2 Ra3 Nb1 Ra8 g4 Kd6 g6 Ke6 d5+ Kf6 e5+ Kg7 Nc3 h6 Ne4 Ra6 Ng5 Rd6 exd6 Rh7 N5f3 Rh8 g5 h5 Ne5 Qe8 Ng4 hxg4 Bd2 Qd8 Bf4 Rh5 Bc1 Rh8 h4 c5 a4 f5 a5 e5 h5 c4 a6 e4 a7 c3 a8R g3 Qf3 c2 Rh4 g2 Nh3 g1B Kd2 f4 R8a4 Na6 Ba3 Nh6 Rg4 Bb6 Bc4 Bg1 Nf2 Qa5 d8B Bh2 d7 Nf5 d6 Nd4 Rag1 Nb8 Ba2 b3+ Rb4 Be7 h6+ Kf8 Qh3 f3 g7+ Kf7 g8B+ Kf8 g6 c1B+ Kc3 Bb2+ Kd2 Qa8 Qf1 Nc2 Rd4 Ba1 Qb5 Rh7 Qf5+ Rf7 Nh1 f2 Ng3 f1Q Nh5 Bb2 Nf6 Na1 Bb6 Rh7 R4g3 Qc4 Qc5 Qe6 Ra4 Be5 Rd4 Bd8 Bf7 Qf5 Bd5 Qe6 g7+ Kf7 R3g2 Be7 d8Q Beg3 d7 Bc7 Ba5 Bcg3 Qdb6 Bed6 g8Q+ Ke7 Qbb5 Qf5 Qg4 Kf8 Bg8 Be7 Qh4 Qh5 Qcg5 Bc7 Qgg4 Qc5 Qf1 Bce5 Qff5 Rg7 Qgh5 Rg3 Bc7 Rh3 Rg7 Rc3 R1g4 Qca5 Qhg6 Bb4 Ne8+ Bf6 d8Q Bd7 Qc8 Bb5 Bd8 Bc4 Qc7 Bb5 Qfh5 Bfe5 Nf6 Be2 Qgf5 Bb5 Qhg6 Rh3+
R2Q4/n4N1B/2Rq1B1p/2RBb1Qq/1p1Q4/2qbq2R/1P1BpK2/k3n2b w - - 0 1 legal: proof: f4 f5 c4 b5 e4 fxe4 a4 a5 f5 d5 cxd5 g5 Qb3 b4 Qd1 Ra7 Ra2 Rb7 Ra1 Rb5 axb5 Bb7 Qc2 Ba6 Qd1 Bc8 h4 h6 g4 Bg7 h5 Bd7 Nc3 Bf8 Nce2 Bc8 Nf4 gxf4 g5 Rh7 Ra4 Rg7 Ra1 Rg6 hxg6 Qd6 Nh3 Qd7 Ng1 Qd8 d4 Kd7 g7 Kd6 f6 c5 g6 e5 b6 e3 f7 e2 b7 f3 Qd2 a4 Qc2 c4 Rh3 c3 Bd2 a3 Rb1 e4 Bg5 a2 Qa4 a1Q Qa7 c2 Bf6 c1Q+ Kf2 Na6 b8R Bb7 Ra8 Ne7 g8B Nc8 g7 Qaa5 Bh7 Qc3 g8Q Nc5 Rc1 Bg7 f8R Qdc7 Bg5 Be5 Bg2 Qd8 Bd2 Nd3+ Ke3 f2 Nf3 f1B Rf5 Qf6 Ng5 Ne1+ Kf2 Bc6 Qag7 Na7 Rc2 Qac5 Bh1 Qg6 Rc1 Qh5 Nf7+ Kc7 d6+ Kb6 d7 Kb5 d8Q Kc4 Q7h8 Kb3 Qgg5 Qd6 d5 Ka2 Rc2 Ka1 Qhf6 Qf8 d6 Qe7 d7 e3+ Kg1 Qd6 Bd5 Bf4 Qd4 Be5 Be6 Bh1 Bd5 Nd3 Rf6 e1Q Re6 Qeh4 Rg6 Ne1 Rf6 Qcc7 Rc5 Bd3 Re6 e2 Rg6 Qe7 Rgc6 Qe4 Kf2 Qe6 Qde7 Qed6 d8B Qa5 Qc7 Qa3 Bf6 Qc3 Qd8 Qe3+
2K2B1r/Bbp4k/4N1Rq/1bpppb1R/3n1b1R/Q4B2/1QPQ3R/3r1B2 w - - 0 1 legal: proof: e4 f5 exf5 e5 b4 g5 h4 Qf6 hxg5 Qg6 d4 Nc6 d5 Nd8 Na3 Qf6 Nc4 Ne6 Nb6 Qd8 Na4 Kf7 dxe6+ Ke7 b5 Ke8 b6 axb6 Nc5 bxc5 Kd2 h5 Kc3 b5 a4 d6 g4 h4 f4 h3 f6 b4+ Kc4 b3 Kb5 d5 Kc6 h2 f5 b2 g6 b1B g5 Rh3 f7+ Ke7 g7 Ba2 g6 Kf6 a5 Nh6 g8R Qe7 a6 Re3 g7 Bc4 a7 Bb3 Nh3 Rc3 Nf4 Rf3 Qd2 Rh3 Rh8 Bd7+ Kb7 Qe8 g8R Ng4 e7 Bda4 Rh4 Ne3 Ne6 Bg7 f8Q+ Qf7 e8B Rd8 a8Q Bb5 Qa3 B3c4 Bb2 Rc8 Bc3 Bh6 Ba5 Bf4 Bb6 Ra8 Qd6 Qh7 Ba7 Qh6 Bh5 Be2 Rgg4 Rh8 Rg6+ Kf7 f6 Nf5 Re1 Nd4 Qb6 Rd3 Rb1 Bg4 Rb4 Bf5 Bf3 Bg4 Rh5 Bf5 Ng7 Kg8 f7+ Kh7 f8B Bc8+ Kb8 Bb7 Ne6 Rb3 Ra4 Rb1 Rb4 Rd1 Rc4 Ba4 Qbb2 Bb5 Ra4 Ba8 Kc8 Bac6 Rhg1 h1B R1g2 Ba8 Rgh2 Bg2 Rc4 Bh3 Rc3 Bg4 Re3 Bf5 Re4 Be3 Reg4 Bf4 Rgh4 Bb7+
3B2k1/1n4p1/qp1n1pr1/3rQ2P/B1p5/R1Qb1pN1/1QBqRR2/2B1K1Q1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 Qf6 f5 Qd6 Na3 Qd8 e4 Ke7 f6+ Kd6 Nc4+ Kd7 Ne3 Na6 Ng2 Nc5 Nf4 exf4 e5 Ra5 e6+ Kd6 e7 Nd7 e8B Be7 fxe7 Nb8 Ba3 Ra7 Bc1 Ra8 a4 c5 d4 f6 h4 c4 h6 b3 h5 f3 a5 b2 h7 b1Q a6 b6 a7 Qb5 Rh2 Qb3 Ra3 Qe3+ Ne2 Qe6 Ba4 Nh6 e8Q Qe5 Rf2 Qf4 Ng3 Bb7 Bd3 Qc7 Bdc2 Nc6 Qe5+ Kd7 d6 Qc8 d5 Nf7 Qb2 Ke8 d7+ Kf8 d8B Qd4 d6 Na5 d7 Be4 Qd3 Qd6 Qdc3 Qa6 Ra2 Rb8 a8R Nb7 Ra7 Bd3 Re2 Rg8 h8Q Qd4 Qh7 Nfd6 Qf5 Rh8 Qe5 Kg8 Rf2 Rh6 Ra3 Nc5 Rc7 Ncb7 Rc6 Ne4 Re6 Rg6 Be7 Qe3+ Kd1 Ng5 Qd5 Qf4 Ree2+ Nf7 Qde5 Rf8 d8Q Be4 Qdd2 Bd3 Qe1 Rd8 Qg1 Rd5 Bd8 Nfd6 Ke1 Qd2+
QK1r1r2/3b3N/1NR5/1pb1QR2/1brnQ1QR/1k4B1/bPqnn2n/1R2N3 w - - 0 1 illegal: No proof kernel
n1NnQN1k/B3Q1p1/1rRB1QP1/1b2r2b/4Bp2/1B2b3/K3nq2/qN1rQ3 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 e5 c4 Rh6 cxd5 Rb6 f4 exf4 g5 Rh6 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 e4 c5 d4 f5 Kd2 Kf7 Kc2 a5 Kb2 c4 h4 c3+ Ka2 g3 b6 f3 h5 c2 h6 f2 d6 g2 h7 a4 b7 a3 d7 f4 e5 Qe7 d8Q Nh6 e6+ Kg6 b5 Qb4 d5 Nf5 d6 Ne3 b6 Na6 b8N Qa4 d7 Bc5 e7 Ra7 b7 Qc6 Nh3 g1R Bg2 f1B Be4+ Nf5 Qe1 Be3 Nf2 Re8 h8Q Nc7 Rh6+ Kf7 Rd6 Qb6 Rc6 Bb5 Bb2 Ra5 Be5 Nd4 Bd6 Ra6 Qh6 Kg8 Qf6 Nde6 g6 Na8 Qc7 Nc5 d8Q Bg4 Nd7 Kh8 b8B Nb7 Ba7 Bh5 Nf8 Qd4 Qdd7 Rb6 Qde6 Rb8 e8B Nd8 Qce7 Qd2 Ng4 Qf2 Ne5 Rh1 Nc4 c1N+ Ka1 a2 Bf7 R8b7 Qe8 Rg1 Qe6e7 Ne2 Kb2 a1Q+ Kb3 Ra6 Nb6 Ra5 Nc8 Rb6 Bg8 Rg5 Bc4 Re5 Bf7 Ra4 Bfd5 Rd4 Bc4 Qc3+ Ka2 Rd1 Bb3 Qa1+
r3r1Nn/1KN2N2/pQR3Qp/3b1n2/1RqN3r/3BRn1r/5Q1P/2k1b1bR w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 Kb2 Kd7 Kc3 Kd6 Kd4 f5 g4 a6 e4 h6 e5+ Ke7 Kc5 f3 d4 f4 g5 c6 b6 Bh3 e6 Qc8 g6 Kf6+ d6 Kf5 g7 Ke4 d5 Ke3 b4 Bg2 b5 Ne7 g8N Nf5 Bd3 f1N e7 f2 b7 f3 Kb6 c5 d7 c4 d8N c3 d6 c2 d7 c1B Nc3 Nd2 Nge2 f1R Nd4 f2 Ra3 Bd5 Qc2 Nc6 e8Q+ Ne5 b8R Qc4 Nf7 Nf3 d8R Bd2 Rdc8 Be1 Rc6 Bc5+ Kb7 Rg1 b6 f1R Qe6 Rg3 Ncb5 Rh3 Nc7 Rg1 Rc3 Rg4 Qg6 Rf4 Qcg2 Rfh4 Qg1+ Kd2 Qf2+ Kd1 Rb3 Kc1 Re8 Nd7 Re3 Nde5 Rb4 Rh7 Qg5 Ng6 Qh5 Nh8 Qg6 Ra7+ Kb8 Rg7 b7 Rh7 Kc8 Ra8+ b8Q Bb6 Kb7 Rg7 Ng5 Re7 Nf7 Re8 Qa7 Bc5 Qb6 Bd6 Qa2 Bg3 Qe2 Bf2 Qf1 Bg1 Qfg2 Ng7 Qf2 Nf5
2RQ1n1N/1prn1p1q/NN3BQB/3BK1NQ/bP6/1nk4b/q4B2/1nb4r w - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 h5 f4 e5 g4 exf4 gxh5 a4 a3 Qd6 Ra2 Qd7 Rb2 Qd6 Rb3 axb3 a4 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 h4 g5 d4 f3 h6 b2 a5 c4 h7 g4 d6 f2 a6 g3 d5 c3 d7 c2 d6 g2 h5 Nh6 a7 Qb6 d8Q+ Be7 d7 Ke6 Na3 b1B Nf3 g1N Nb5 Na6 Bg2 Ng8 h6 f1Q Ng5+ Kf6 e3 Nc7 Qh5 Ne6 Nc7 Nf8 Na6 Nf3 Rh2 Rb8 a8N Qa5 Nb6 Nd2+ Kd4 Qf2 Bd5 Qf5 e4 Qa2 Re2 Qh3 e5+ Kf5 e6 Nf6 Re3 Bd6 e7 Bf4 e8Q Ra8 Bb2 c1N Rc3 Bc2 Qe1 Qh1 Qg3 Nb1 Rc6 Qh4 Bc3 Bd1 Be1 Ba4 Bf2 Qh3 Rc2 Bd2 Qd3+ Kf4 Qdg6 Nb3+ Kc4 Ke5 Rc3 Rg8 h8B Bc1 Bg7 Rh8 h7 Qh2 Bh6 Qh1 Nc5 Ra5 Na6 Rc5+ Kd3 Rc7 Rc2 Rg8 h8N Rg7 Ke2 Qh2 Kf3 Rh7 Bg3+ Kd4 Rc3 N3d2+ Kf4 Nb3+ Kf5 Qh1 Rc6 Kd3 Bf2 Qh3+ Ke5+ Kd2 Re6 Kc3 Re8 Qd3 Qe7 Qdc2 d8B Bh3 Qd6 Ne4 Bf6 Nec5 Rc8 Qd3 Bhg7 Rh6 Qd8 Qdc2 Qg4 Qd3 Q6h5 Qh7 Qg6 Rh5 Bh6 Ncd7+ Ke4+ Nd4 Qd1 Bg4 Qe2 Rh1 Qd1 Bh3 Qh5 Nc5+ Ke5 Ndb3 Bg3 Bf1 Bh4 Bh3 Bf2 Ncd7+
Q5nR/1B1rR2p/nRRNn2r/1b1kN1NP/Q5Kq/2Q2rn1/2Q1p3/4b2r w - - 0 1 legal: proof: f4 f5 a4 b5 axb5 d5 e4 g5 c4 Ba6 b3 Bc8 Bb2 Bd7 Be5 Bc8 cxd5 fxe4 f5 Qd7 Bg3 Qd8 Bf4 gxf4 Kf2 Kf7 g4 c5 d4 e5 h4 a5 f6 a4 d6 Ke6 f7 c4 d5+ Kd7 b4 a3 g5 c3 g6 f3 Kg3 c2 g7 c1N b6 e3 b5 e4 h5 f2 b7 e2 b6 e1N Qa4+ Nc6 b8R a2 b7 e3 Nh3 e2 Bg2 f1R Na3 Ncd3 Ng5 Nf4 Nc4 Ne7 g8R Nf5+ Kg4 Ned3 Rh4 Nc5 Rc1 Bg7 f8Q a1R Qf6 Ng3 Qc3 Rf3 Re8 Qc7 Re7+ Kd8+ d7 Ra6 Ne5 Nfe6 Rc2 Rh1 Ra8 Rhf8 b8Q R8f7 Qb1 Qd6 Rb8 Kc7 d8N+ Bd7 Nb7 Rb6 Rc1 Na6 Rh8 Bf8 Qbc2 Bh6 Nh3 Bd2 Ng5 Be1 Rb1 Qc5 Rh3 Qg1 Nd6 Qh2 Rc1 R7f6 Rb1 Rb7 Rb6 Rg6 Nc8 Rh6 d6+ Kb8 Rh4 Be8 d7 Kc7 Na7 Kd6 d8Q+ Rd7 Qa8 Kd5 Nb5 Bg6 Nd6 Bd3 Rh3 Bb5 Rh4 Rb7 Rc7 Ne7 Rcc6 Rd7 Rh3 Ne4 Rh4 Ng8 Rh3 Rd3 Rf3 Re3 Rf7 Rf3 Re7 Ng3 Bh3 Rff6 Rc7+ Bc6 Ndc4 Kc5 Bg2 Rf2 Bd5 Rf3 Rc8 Rc7 Be4 Be8 Bb7 Bb5 Qcb4+ Kd4 Qba5 Rd7 Rcc6 Kd5 Nd6 Rc7 Q5b4 Rd7 Qbc3 Qh4+
NN1Q1N1Q/1RpRR3/bR1p4/3qb3/k1r2Qb1/n1P2r2/nQbKBr2/6r1 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 e5 axb5 h6 d4 Bc5 dxe5 Bd6 Bd2 Bf8 Bb4 Nf6 Be7 gxf4 g5 Ng8 g6 Rh7 Bh4 Rh8 Bg5 hxg5 h4 a5 e4 f5 b4 d6 c3 Kd7 h5 g4 b6 Kc6 e6 g3 e5 g2 e7 f3 e8R f2+ Kd2 a4 b7 f4 b5+ Kb6 g7 Ka5 b6 f3 e6 a3 e7 a2 h6 Nc6 b8R Bg4 h7 Nh6 g8Q Nf7 b7 Bg7 Qc1 Nfe5 Qc4 Nb4 Na3 Ka4 Be2 f1B Rb1 a1R Qf4 f2 Nh3 g1R Nc4 Rf8 h8Q Na2 Ng5 Rg3 Rb6 Rf3 Qb2 Qc8 Qh7 Qf5 Qh8 Qf7 Rh7 Qd5+ Bd3 Bfh3 Ne6 f1B Red8 Be2 Rd7 Rg1 e8Q Ra5 Qe7 Rc5 Qd8 Bf5 Re7 Bhg4 Rd7 Bf6 Rhe7 Rf7 Nf8 Bf1 Qd4 Bg6 Be2 Bc2 Rc8 Rf2 b8N Bg7 Rb7 R7f3 Rb6 Nc6 Rb7 Na7 Rb6 Nb5 Rb7 Qe6 Qf4 Na3 Rb6 Be5 Rb7 Qf5 Nb6+ Ka5 Na8 Rc4 Nc6+ Ka4 Rcb8 Qe6 Rb6 Qf5 R8b7 Qe4 Nb8 Qd5+ Ke1 Qf7 Bd1 Be2+ Kd2 Bd3+ Be2 Qe6 Qd4 Qd5 Qf4 Rb4 Qe3 Ba6+ Qd4 Qe4 Qe3 Rc4 Qf4 Qd5+
RQ1Q2q1/r1pp1bRb/B2N3n/k1bQ2N1/1RP1N2q/1p2rn1R/6r1/4Q2K w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 h6 g6 Qe7 g7 Qd8 g4 Bd6 g5 Be7 g6 Bf8 Bg5 hxg5 Kf2 b5 Kg2 f5 a4 g4 e4 f4 h4 b3 h5 b4 a5 g3 e6 b2 e5 b3 a6 Be7 a7 Na6 h6 Bc5 h7 Bb7+ Nf3 Ke7 Qe1 Bd5 Nc3 b1B Ne4 Nh6 g8R Nb4 g7 Nc6 Nfg5 Nd4 Ba6 Nf3 c4 Qf8 Ra4 Kd8 Bb5 Kc8 e7 Kb7 e8N Kb6 Ba6 Bf7 Rb4+ Ka5 N8d6 Re8 a8Q Qe7 Rf8 Rg8 Qd5 Ra8 h8Q Ra7 e6 Bc2 Nh7 Qh4 e7 Bb1 Nhg5 Bd3 Nf6 Bh7 Ra8 Re8 Nfe4 Rg8 Rh3 Re8 Kf1 g2+ Ke2 g1Q g8R Qgg4 Kf1 Qe6 Kg2 Qg6 Rf8 Qg8 Qf6 Ne5 Qh8 f3+ Kh1 f2 Qf6 Nf3 Qh8 Rc8 e8Q Rb8 Qe7 Re8 Qd8 Re6 Re8 Re5 Re7 f1R+ Kg2 Rf2+ Kh1 Rg2 Qb8 Qg7 Qhc8 Qg8 Qd8 Bfg6 Rg7 Bf7 Nc3 Ree2 Nce4 Re3
1n6/r3Qbb1/1qq1RN1N/pnB2B1n/1Q1p1Q2/2QN4/Pq2NpBK/3k2r1 w - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 b4 g5 bxc5 Bh6 Nd2 Bg7 Rb1 Bf8 Rb3 Nh6 Rg3 Ng8 dxe5 gxf4 g5 Qa5 Rg2 Qd8 Rg4 hxg4 Kf2 Ke7 Kg2 Ke6 e4 f5 c4 a5 h4 d5 h5 b5 g6 b4 c6 d4 c5 g3 c7 b3 c6 b2 g7 b1Q h6 Bd6 h7 Qf6 Ne2 Qd8 Rh6+ Qf6 Qa4 Qb2 Nf3 Ra7 Qb4 Bf8 Ne1 f3+ Kg1 g2 Nd3 f4 Kh2 g1N Bg2 Bd7 c8Q f2 c7 f3 Bg5 Qg6 Be7 f1Q Bc5 Nf6 g8N Bg7 Qf8 f2 c8B Nh5 Qf4 Qfa1 Nf6 Rg8 h8N Qe8 Nf7 Qab1 Qc3 Qb6 Rg6 Q1b2 Nh6 Nh3 Qb4 Ng5 Qc3 Nf7 Qb4 Nd6 Qc3 Ke7 e6 Bc6 e5 Bd5 Qb4 Qec6 Bd7 Kd8 e7+ Kc7 e8Q Nb5 Bf5 Bf7 e6+ Kb7 e7 Ka6 Nhg4 Nd6 Qc3 Kb5 Qf8 Ka4 e8Q Kb5 Qe1 Kc4 Nh6 Nb5 Qa1 Rb7 Qee7 Ra7 Ng3 Kc3 Ne2+ Kc2 Qe1 Na6 Qc3+ Kd1 Q8b8 Qd8 Qbb7 Nb8 Qb6 Nd6 Qbb4 Nb5 Ne4 Qdb6 Re6 Bf8 Nf6 Rg7 Bgh3 Rg1 Bg2 Bg7
3Q2Nq/bb2Q3/k1n1p3/pp2P2R/QR2Nb1r/n1K1QBR1/b4R2/1N1r2r1 w - - 0 1 illegal: No proof kernel
2br4/pB2r3/p1rbQN2/PQRbn1Rn/1N2Q3/KQ6/1rR2p1N/1k1q1R2 w - - 0 1 illegal: No extended proof kernel
3N3b/1Q2r1R1/2q2rQ1/Qp1Q3B/bb2nK1p/1P1R1nBk/p1bBRn2/2R5 w - - 0 1 illegal: No proof kernel
1Q3BN1/5Q1Q/1qpR2p1/NNP5/1kN1pn2/bb2RR2/b1R2qr1/K2bn2r w - - 0 1 legal: proof: f4 b5 g4 d5 a4 d4 axb5 d3 g5 g6 exd3 Nc6 d4 Nb8 d5 Nd7 f5 Nb8 Bd3 gxf5 g6 f4 g7 Na6 Be4 Nb8 Bg6 hxg6 d4 Kd7 Kd2 Kd6 Kc3 e5 h4 a5 b4 f5 Kb2 f3 c4 a4 c5+ Kd7 h5 f4 d6 e4 b6 Kc6 h6 Kb5 h7 c6 d5 f2 d7 f1B b7 f3 d6 f2 Ne2 Ra5 Qb3 Qh4 d8N Qg3 d7 Nf6 g8N Nh5 Ra2 a3+ Ka1 Bh6 Rh3 Nf4 Nd2 Na6 Rc2 a2 Qf7 Ka4 b5 Kb4 Nd4 Bc4 b8R f1B b6 Bb3 b7 Bfc4 Bb2 Qf2 Re3 Be2 Ra8 Bd1 b8Q+ Rb5 Nb7 Bg7 d8R Bce6 Na5 Rb7 Nb5 Rd7 Ndc4 Rd2 Qba7 Ba4 Nbd6 Qg3 Ne5 Rg2 Nab7 Qf2 Ree2 Kb3 Qb8 Qe1 Rf2 Qe3 Rf3 Nb4 Ra6 Nbd3 Rb6+ Bb5 Na5+ Ka4 Bd4 Ne1 Kb2 Bbc4 Rb3 Qf2 Rbe3 Bcd5 Ng4 Bc4 Bf6 Bcd5 Ne5 Bc4 Be7 Bf6 Bf8 Bg7 Kc3 a1Q+ Rb2 Qa2 Rc2 Qb1 Rd7 Qb6 Nb5 Bcd5 Kb2 Ba2 Ka1 Kb4 Rd6 Beb3 Nh6 Rg8 h8Q Bf6 Qhg7 Rh8 Ng8 Rh1 Qh7 Bh8 Rec3 Bf6 Nec4 Be5 Qa8 Bd4 Qb8 Be3 Rcd3 Bc1 Rde3 Ba3
b3R1nn/p1Q1Np1B/1Q1bqB1B/P7/2qqq3/KRR2r2/1p2R3/k1r1Q1Q1 w - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 b4 g5 bxc5 Be7 Nc3 Bf8 Nd5 Nh6 Ne3 Ng8 dxe5 gxf4 g5 Bg7 Ng4 hxg4 Nf3 Bh6 Ng1 Bf8 Kd2 Ke7 Kc3 Ke6 Kb2 d5 e4 b5 h4 f3 a4 b4 c4 f2 g6 d4 c6 b3 a5 d3 c7 d2 h5 g3 c5 g2 h6 Qd4+ Ka3 b2 h7 Bb7 c8R Qd3+ Qb3+ Bd5 g7 d1Q Ne2 g1Q Rh2 Qg5 Nf4+ Kd7 e6+ Ke7 c6 Kd6 c7 Kc5 e7 Kd4 e5 Qa6 e6 Qg1 Bd3 f1Q Qb6+ Kc3 Ng6 Qd4 Re2 Nd7 Bh6 Qc2 Rb8 Qg2 Rc1 Qge4 c8Q+ Bc6 Rb7 Ne5 Qcc7 Rd8 Rb8 Rd5 Rb7 Rc5 e8Q Bd6 Ne7 Ng6 Rb8 Ba8 Rb7 Nf6 g8Q Qac4 Qg7 Rg8 Rb8 Nh8 Qg1 Rg3 Rb7 Ng8 Rb8 Ng6 h8B Rf3 Bf6 Nh8 Rb7 Qe3 Bh7 Qee5 Qeb5 Qee4 Qb4+ Kd3 Qbe1 Qcd5 Nf5 Qcc4 e7 Qde6 e8R Qb5 Qh4 Rc6+ Rc5 Qbc4 Ne7 Kc3 Re3+ Kc2 Qhe1 Qd1 Rbb8 Kb1 Rb3 Ka1 Rbd8 Bf4 Rd2 Bd6 Re2 Qcd4 Qeb4 Qf1 Rcc3 Rc4 Rce3 Rc1 Red3 Bg3 Qe1 Be5 Rdc3 Bg3 Rg2 Qfc4 Re2 Bd6+
3Rnkb1/p7/1Q4Rn/pK4p1/Nbp2NNq/1qN2Q2/1rP1Q1R1/1qR1r2B w - - 0 1 legal: proof: d4 g5 f4 e5 dxe5 b6 a4 Bb7 a5 bxa5 Kd2 Ba6 Ke1 Bc8 fxg5 h6 g6 Qf6 g7 Qd8 g4 Bd6 g5 Ba3 g6 Bf8 Bg5 hxg5 Kd2 c5 Kc3 d5 b4 f5 h4 f4 e4 f3 h5 f2 e6 d4+ Kc4 d3 h6 d2 e7 Nd7 b5 Ngf6 g8N Rb8 h7 Bg7 e5 Bh6 b6 Ne4 b7 Ng3 g7 Nf8 Ne2 Nd7 Nf6+ Kf7 e8R Ra8 g8R Nb6+ Kb5 c4 b8Q Nd7 Rh2 Bf8 Bg2 f1Q Nbc3 Nf5 Rg6 Qe1 Bh1 Qh4 Na4 Nh6 Ng4 Bb4 Nec3 Nf6 Qb6 Rb8 Qf3 d1Q Rg2 Be6 Rc1 Q8d3 Rd8 Re8 h8N+ Ke7 Nh2 Bf7 e6 Bg8 Ng4 Qde1 Nf7 Qde3 Nfe5 Kf8 Nd3 Q1g1 Nf4 Qd1 Rd3 Re7 Rd8+ Ne8 Ncd5 Qb3 Ndc3 Rd7 Qbb7 Rd2 Qb6 Re2 e7+ Kf7 Rb1 Re1 Ra1 Qc1 Rb1 Qcb2 Rc1 Qb1 Rd4 Nc7+ Kc6 Q3b2 Rd8 Bc5 Qa6 Rb3 Qb6 Bb4 Rf6+ Kg7 e8Q Qa3 Qee3 Rb2 Qee2 Ne8 Kb5 Qb3 Rg6+ Kf8
BQ1R4/1n4rN/n2bpBQ1/kp1bbr2/p5RQ/1R1p4/P1KRq1Q1/5Bq1 w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 d6 g4 hxg4 e6 Nf6 e7 Kd7 Bg5 Ng8 Bf4 Ke8 Bc1 Kd7 e8B+ Kc7 e4 Rh5 e5 Rh7 e6 Nh6 e7 Na6 Nc3 Ng8 Nce2 Nb8 Nf4 Rh8 Ne6+ fxe6 Kd2 b5 c4 a5 f4 g5 h4 g3 h5 a4 h6 g4 h7 g2 c6 Kb6 c7 g3 f5 d5 f6 d4 f7 Bd7 c8R Qc7 c5+ Ka5 c6 Qe5 c7 Ra6 Rb1 Ra7 Qf3 Qf4+ Kc2 Nc6 Rh4 Qg5 Nh3 g1B Qg2 Qg4 Bg5 Bh2 Rd8 Nb8 c8R Na6 Rb3 Nh6 Bf6 Nf5 Ng5 Nd6 Rc5 Bc8 Bc6 Nb7 e8Q Bd6 f8Q Be5 Qh6 Rf8 h8Q Qh5 Qhg6 Qe2+ Kc1 Bd7 Rg4 Bd6 Be4 Bc6 Qh4 Bd5 Rc2 Rf7 Nh7 Rg7 Qh1 g2 Rd2 g1Q Kc2 Bhe5 Qg2 Rf7 Be7 Rf5 Bf6 Bc4 Bc6 Bd5 Qh8 Nbc5 Ba8 Rg7 Rd7 Nb7 Qb8 Bb4 Rd6 Ba3 Rd7 Bad6 Rd8 d3+
1N4nB/1N1n2Bp/5b2/1p1Nnrp1/1B5R/2pq1qk1/N2NP1N1/K2B1Q2 w - - 0 1 legal: proof: g4 g5 h4 e5 f4 d5 fxe5 b5 a4 a5 h5 Bf5 b3 Ra6 c4 Rg6 cxd5 f6 b4 axb4 Ra3 bxa3 hxg6 Be6 Bh3 f5 Bg2 f4 Bf1 Bf5 gxf5 Ke7 Rh5 Kd7 Rh1 Ke8 d4 Kd7 Kd2 c5 Kc2 a2 Kb2 a1N f6 f3 f7 f2 d6 Ke6 d5+ Kf5 d7 Kg4 e6 c4 d6 Qc8 d8B Kg3 d7 Qc5 g7 Qd4+ Nc3 Qf4 e7 Qh4 e8N Nb3 a5 Nd2 a6 Ba3+ Ka1 Nf3 f8B Ne1 a7 Qh3 a8N Nd3 Bd2 Kh4 Nec7 Be7 N7d5 Nc5 Nf4 Nca6 Na2 Kg3 Bg2 f1Q Bd5 Nb4 Ng2 Qh4 Nb6 Qf5 Qf1 Qe6 Nf3 N4c6 Bb4 c3 Bb3 Nf6 g8N Qe3 Bg7 Bc5 Nd5 Bf8 Bd1 Qg4 Rh4 Qd3 Nge7 Ng8 Nd2 Ne5 Nc6 Qgf3 Bdf6 Be7 d8N Nbd7 Nb7 Bd8 Nb8 Be7 Bf8 Bd8 B6g7 Bf6 Bfd6 Ne7 Bdc5 Rf8 Bd4 Ng8 Bh8 Bd8 Bg7 Rf5 Bh8 Ng6 Bdf6 Nge5 Bfg7 Bf6
2R1bNk1/2bn1nb1/qB2R1BR/2R1Bn2/1K1P4/3qQ1Rr/1BR1q3/6nr w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 b4 Kf7 d4 c5 Kd2 a5 Kc3 e5 h4 e4 f6 e3 h5 a4 d6 a3 b6 f3 h6 g3 b7 e2 b5 e1N h7 g2 b6 f2 d7 a2 g6+ Ke6 f7 c4 g7 Bc5 f8R Qg5 d8B Qg3+ Qf3 Ne7 g8R Nd7 b8R Bd6 b7 Bc7 Nh3 g1N Bd3 f1Q Rf5 Qe2 Kb4 c3 Rh2 c2 Bb2 c1B Rc5 Nf5 Nf4+ Kf7 Ng6 Ra3 Nf8 Bh6 Qe3 Nef3 Re1 a1Q Bc2 Qh3 Rg3 Nfe5 Ra8 Bg7 b8B Qa2 Be4 Qa6 Rhc2 Bb7 Bd3 Bc6 Be4 Qe2 Ra6 Bb5 Rh6 Qe6 Bd3 Qa6 Be4 Bd6 Bb6 Bc7 Rec1 Qhf1 Rcc6 Qd3 Rce6 Qfe2 Rc5 Nf6 R1c2 Be8 Qg5 Nfd7 Qe3 Rg8 h8R Ra1 Rh4 Rc1 R8h6 Rh8 Rh2 Kg8 R2h4 Nd6 Bg6 Nef7 R4h5 Nf5 Rcc6 Bd8 Be5 Rf1 Rc8 Bc7 Rhg5 Rf3 Rg2 Rg3 Rc5 Rh3 R5g3 Qed1 Rd2 Q1e2 Rdc2 Rh1 Rhh3 Rh5 Rh4 Rg5 Rh7 Rgh5 Rh6 R5h3
2B2r2/2BPb3/1q2RB1N/1r3b1R/1nk1rNR1/3b1bN1/2bK1N1R/b1q2N2 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 exf3 h5 Nc6 Qa4 Ke8 Qf4 gxf4 g5 Ne5 Ra3 Qd7 Ra1 Ng6 hxg6 Qd8 d4 Ke7 b4 Kd6 e4 f5 g7 h5 e5+ Ke7 d6+ Ke6 g6 Kd5 b6 a5 b7 c5 b8B h4 e6 c4 b5 h3 b6 c3 e7 c2 e8R h2 b7 a4 d7 f2+ Kd2 f3 Ra2 a3 Ne2 f4 Bb2 c1R Bc7 Rh4 b8N Nf6 g8N Rc5 g7 Kc4 d5 Be7 d6 Nd5 Bf6 Nb4 Bh3 f1Q Nc6 f2 Ng3 f3 Nh6 Re4 g8R Rb5 Rg4 Qg1 Rb2 f1B Ra2 f2 Ne5+ Kc5 Rb2 a2 Nd3+ Kd5 Rc2 a1B Ra2 Bg2 Rc2 f1B Nf2 Bf3 Rb2 Bf8 Re6 Bd3 Rc2 Be7 Rb2 Qe8 d8N Kc4 Ra2 Qc6 Ra5 Rbb8 Rh5 Rb5 d7 Ba6 Bf1 Qb6 Bg2 Bd1 Bf3 B1c2 Bg2 Rd4 Bb7 Re4 Bc8 Bb7 Rd6 Bd5 Ne6 Qf1 Nf4 Be6 Bh4 Rb8 Bf6 Bf5 Re6 Qg1 Nc3 Qb1 Nf1 Qb2 Nce2 Qa3 Rhg1 h1B Neg3 Bf3 Rgh1 Qb2 R1h2 Qa3 Ba6 Rf8 Bc8 Qc1+
qk3r2/2nR1B1B/2RP2RR/1b4b1/B5N1/nqB1K1q1/2b2BN1/Nn2bq2 w - - 0 1 illegal: No possible last move
Kb1rNNk1/Qq4n1/1Rb1q2n/3q1r1b/2pR1r2/1N1N3P/5B2/2RRN2N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 Kf3 g5 Ke4 a5 b4 f6 d4 Kf7 h6 c4 h7 g4 h3 f3 d6 a4 Kd5 f2 e4 g3 e5 f5 b6 a3 e6+ Kg7 e7 g2 b5 f4 b7 a2 b6 f3 d7 Qc7 d8N Qf4 Ne6+ Kf7 Ng7 Qh4 Nf5 Qg3 Nd2 Ra4 Nb3 Ra8 Be3 Nd7 Kc6 Qh4 b8N Bg7 d5 Bf8 b7 Ra4 d6 Qd4 Ng3 Ndf6 d7 Nh6 d8R Nh5 Na6 Bg4 b8R Ra5 Kb7 Ng7 Ka8 Rf5 Rb6 Bh5 Nac5 Qd3 Be2 f1R Rdd6 f2 Bf3 Qd4 Nd3 Qf6 Bb7 Qe6 Nf3 g1Q Nb2 Qh2 Nd3 Qg2 Rd4 Rg8 Rb1 Rh8 Qc1 a1Q+ Qa3 Rg8 Qa7 Qa6 Rc1 Rh8 Nfe1 Qgd5 Nc2 Rg8 Rg1 Rh8 Nh1 Rg8 e8N Bd6 h8N+ Kf8 Nf6 Bb8 Ng6+ Kf7 Bd2 Rd8 Ne8 Kg8 Bg5 Re1 Be7 Re4 Rgd1 Ref4 Bf6 f1B Bh4 Qdc6 Bg3 Bg2 Nce1 Qcd6 Bf2 Bc6 Nf8 Qdd7 Ra1 Qdd5 Rac1 Qxb7+
1K5R/2q2b2/1n2RNB1/kN2nq1N/5RNr/2NRp3/rP2nb1n/N2r1Q2 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 g4 h6 d3 Bb7 Bd2 Bc8 Bc3 Bd7 Bf6 gxf4 g5 Be6 g6 Bc8 Bg5 hxg5 Ke2 Kd7 Kf3 a5 Ke4 e5 h4 c5 b6 c4 g7 c3 b7 Kc7 d6+ Kb6 Kd5 f3 f6 a4 d7 e4 d4 e3 h5 f2 f7 a3 h6 g4 h7 g3 Ne2 g2 Ng3 g1Q Rh4 a2 Bd3 f1N Bg6 c2 Nc3 c1R Nh5 Ka5 Rf4 Qb6 d8R Nc6 b8N Ba3 f8N Ra6 Nbd7 Qb8 Ndf6 Qa8 Ne6 Qb7 Nc5 Ra8 Kd6 Nh2 d5 Be6 Ng4 Nge7 g8N Ne5 N8f6 Bb4 Qf1 Qf2 Re8 Re1 Rd1 a1N Rd2 Bf7 Rd3 N7c6 Re6 Na7 Qh3 Nb3 Qf1 Qb5 Kc7 Qc2 d6 Nc1 d7 Nc8 d8N Nb6 Kb7 Rd1 Kc7 Ne2 Nb3+ Ka6 Na1 Ka5 Kb7 Ra7+ Kb8 Qd7 Re8 Qf5 Ne6 Ra6 Nd4 Be7 Nfe4 Bh4 Ndb5 Bf2 Nef6 Rf8 h8R Ra7 Rh6 Rh8 Ng7 Rh7 Rh3 Rh4 Re6 Rc7 Ngh5 Rc4 Nfe4 Ra4 Nef6 Ra2 Ncd5 Ng3 Ng7 Rh5 Rh4 Qc5 Ndc3 Ne2 Rh3 Rg5 Rh6 Rh5 Rh8 Rh4 Ngh5 Qc7+
6b1/n1KNNn2/1NRQB1NR/3R3R/1rRnR2r/2Prp3/1q1bnk2/1r6 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 f6 h6 g4 Ba6 g5 Qc7 f5 Qd8 fxg7 Bb7 g6 Bc8 Bg5 hxg5 Ke2 e5 Kf3 Ke7 Ke4 Kd6 h4 Kc5 b4+ Kb6 Kd5 a5 c3 g4 h5 d3 f6 a4 f7 e4 h6 a3 h7 g3 Nf3 g2 Nbd2 g1N Rh5 a2 Nh4 Nc6 Bh3 Na7 Be6 Nh6 g8N Rb8 g7 Ne2 Ng6 e3 Ke5 d5 N8e7 d4 g8R Qd7 Rg7 Qb7 Kd6 Bd7 Rb1 a1N Rc1 Qg2 Nc4+ Kb7 b6 d2 b5 d3 Rb1 Nc2 Rb4 Ncd4 Ra4 Bc6 Ra5 Bd5 Rg8 Bg7 f8N Bf6 Nd7 Bh4 Rc8 Be1 Rc6 Qf2 Qc2 d1R Qd2 Rb1 Qd1 Rhd8 h8R d2 Rh7 Rh8 Ra4 Ka8 Kc7 Nf7 R7h6 Qg2 Qc2 d1R Qd3 Bd2 Rb4 Nc8 b7+ Ka7 b6+ Ka6 Rb5 Na7 Rbc5 Rb4 Rb5 Rbd8 b8R Rdb1 Rc8 Qf2 Na5 Bb3 Nc4 Qg2 Rbd5 Ba2 Nc5+ Kb5 b7 Rd6 Nb6+ Bc4 b8R Rh7 Rhg5 Qh2 Rh3 Rh4 Rh5 Qf2 Qf5 Bb3 Qf4 Rd8 Qd6 Ba2 Nba4+ Kc4 Nd7+ Kd3 Nab6 Ke4 Rh1 Kf3 Rc4 Qg2 Ra8 Kf2 Rh6 Rh5 Rh4 Bb3 Re4 Rh4 Rdh5 Qg1 Rab8 Qc1 Ra8 Qb2 Rd5 Nac6 Raa5 Na7 Rdh5 Ba2 Rad5 Nf5 Rdc5 Ned4 Qg3+ Ke2 Kb8 Nb3 Rcd4 Rc4 Nde5 Nc1 Bd5 N7d6 Ra5 Rd7 Rc6 Rb4 Bg8 Rd8+ Kc7 Kf1 Rb5 Ne2 Qh2 Bf7 Rdc4 Bd5 Be6 Ke1 Bd7 Bg8 Be6 Nf7 Rbc5 Rd3 Rd5 Kf1 Ned7 Nfd4 Qd6 Kf2
3KB2B/3B2rq/b1R2pQ1/2b1Bnr1/R1r3B1/rr5P/2k2bBN/1Rb4R w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 h5 axb5 f6 d4 Ke7 g4 c5 Nd2 Nc6 Ndf3 Qe8 g5 Nd8 g6 Nf7 gxf7 cxd4 Nh4 Ba6 Ng2 Bc8 Ne3 Qd8 Ng4 hxg4 Kd2 Ke6 Kd3 Kf5 Kc4 Ke4 b4 g5 e6 a5 b6 d5+ Kb5 g3 Kc6 a4 c4 a3 b5 g4 e7 d3 e8B d4 b7 g2 b8R a2 b6 g3 h3 d2 b7 d3 c5 Ra3 Bb2 Qd4 Kc7 Rh5 c6 Qf2 Nf3 g1B Be5 g2 Kd8 Rg5 c7 Qa7 Qb1 d1R Bd7 Rc1 Nh2 Bfc5 f8B Nh6 Bg7 Rc4 Bh8 Bgf2 Qc2 g1R Bg2+ Ke3 Bg4 d2 Qg6 d1R+ Bd7 Kd2 e4 Rge1 Rc1 a1B Ra8 Kd3 b8R Rg1 Rbb1 Ba6 c8B Bb2 Bg4 Qh7 Bcd7 Nf5 Ra7 Bc8 Ra4 Ba6 Rc2 Rb4 Rcc1 Rbb3 Rc2 Rc1 Rcc4 Bd6 Rc6 Bb4 Bf4 Rc5 e5 Bc1 e6 Rc4 e7 Bbc5 e8B Kc2 Bd6 Re1 Bg3 Re7 Be5 Rg7
6b1/Bn2B2p/1bbK3P/4B1R1/knBBB1NQ/b1qb4/3RbRR1/4q1n1 w - - 0 1 legal: proof: d4 a5 e4 d5 a4 b5 axb5 c5 Be2 cxd4 Bg4 d3 Bf3 d4 Be2 Ra6 Bf1 Rd6 Ra4 Rd7 Ra1 Rd5 exd5 e5 f4 e4 Nh3 Nf6 Ng1 Bd6 Nc3 Ke7 Nb1 Kd7 Nc3 Re8 Nce2 Re5 fxe5 g5 Nf4 gxf4 Kf2 a4 c4 d2 h4 d3 b4 f3 Ke3 a3 Kf4 a2 g4 e3 h5 f2 c5 e2 h6 e1N c6+ Kc7 g5 Kb6 c7 Qe7 g6 Nbd7 g7 Nc5 g8R Ng4 Rh5 f5 Bb2 Qf7 Nf3 Nb3 Rhg5 Qf8 Bd4+ Bc5 e6 Nf6 Ke5 f4 e7 Qg7 e8R Bh3 c8B Bg2 d6 Na5 d7 Nb7 Nh2 f3 Qa4 d1B Ref8 d2 Bc4 f1B Ng4 Bb3 Rd1 a1B d8B+ Qc7+ Ke6 f2 Be7 Nf3 Bd7 Bd3 Bc6 f1Q Be4 Nd5 Rff5 Ng1 Rf2 Qc6+ Ke5 Kc7 b6+ Kd7 b5 Nb4 R8g7 Bb2 R7g6 Ba3 Rg7 Na5 b7 Qe1 b8B Nb7 b6 Ba2 Ba7 Bh1 Rb1 d1B Rbb2 B1e2 Rd2 Bb3 Ba6 Bg8 Bc4 Nd8 b7 Bb6 b8B Nb7 Qa5 Qc8 Bbd6 Bg2 Qd5 Qc7 Qf7 Bh1 Qh5 Bhf3 Qh4 Bg2 Bb3 Qc3 Bc4 Bgf3 Bg6 Bfd5 Be4 Kc6 Nf6 Bh5 Rgg2 Bhe2 Ng4 Bd8 Rg5 Bb6 Ba2 Kb5 Bc4+ Ka4 Bdb8 Bgf7 Bbd6 Be8 Bc7 Bdc6 Ke6 Bh5 Bg3 Bf7+ Ke5 Nc5 Kd6 Bg8 Bge5 Nb7#
N7/1K2np2/1Rb3nP/1B2p2b/2N4q/BB1k3B/brN2rR1/rN2Rn1N w - - 0 1 legal: proof: f4 b5 a4 c5 axb5 g5 fxg5 c4 e3 c3 Ke2 cxd2 g4 d5 g6 h5 g5 d4 Kf2 d3 Qf3 Bg7 Qg4 Bd4 exd4 hxg4 Ke3 Kd7 Ke4 Kd6 h4 d1B c4 a5 b4 e5 d5 d2 c5+ Kc7 c6 Kb6 g7 a4 h5 g3 g6 g2 d6 a3 Kd5 a2 c7 Nh6 g8R Qh4 g7 Ng4 d7 Qe1 d8N Nh2 h6 Ra4 Nh3 g1N Ba3 Ng4 Nf2 Bc2 Nc6 d1B Nd4 B8f5 c8B Bcd3 Nc2 Ka7 b6+ Ka8 b7+ Ka7 b5 Bg6 b6+ Ka6 Rh2 Kb5 Nh1 Re4 Rg2 Nh2 Bh3 Nc6 b8N B1e2 b7 Ngf3 Nd7 Rf4 b8N Nh4 Nb6 Bgh5 Na8 Rf2 Nd7 Ng6 Ndb6 Bef3+ Kd6 Qb4+ Kc7 Bc4 Rb8 Nce7 g8B Bc6 Bh7 Qa4 Be2 Nf1 Bd1 Bb3 Rb7 Qb4 Nc4+ Kc5 Rb6 Rb8 Bdg4 Kd5 Bd7 Ke4 Bde6 Kd3 Bd7 Bd5 Bb5 Qe1 Nbd2 Qe4 Re1 a1R Nb1 Bb7 Rc6 Ba2 Rb6 Nh4 B7f5 Nhg6 Bfd7 Qh4 Bde6 Be4 Bd5 Rc8+ Kb7 Rc5 Ba4 Rb5 Bc6 Rb2 Bb3 Nd5 Bb5 Nde7+ Ka6 Bc6 Ka7 Be8 Kb7 Bc6+
1q4r1/KNrk4/3NpBn1/Pq1N4/N1BBbN2/R4b1B/1n1Q3p/N2qb3 w - - 0 1 legal: proof: h4 f5 a4 g5 hxg5 a5 e4 d5 exf5 d4 Ra3 d3 b4 axb4 cxd3 bxa3 d4 Nc6 d5 Nb8 Ke2 c5 Ke3 b5 g4 h5 f4 b4 d4 h4 g6 a2 g7 a1Q d6 b3 f6 h3 a5 c4 f5 h2 d5 b2 Kd4 c3 Kc5 c2 g5 Rh5 d7+ Kf7 d6 Qe8 Kb6 Ba6 Nh3 Qc8 d8N+ Ke8 g6 Qa3 f7+ Kd7 f6 Re5 Nc3 b1B Bb2 c1Q Qd2 Qa1 Nf4 Bf5 Nb7 Qa3 Na4 Bad3 Bh3 Qa2 Bd4 Q1c3 Ra1 Qac2 Ra3 Nh6 g8N Q3c4 g7 Rc5 Nd5 Ng4 Nh6 Bg6 g8B Bh5 Nf5 Na6 Nfe3 Qd1 Nc2 Qb8 Na1 Bg7 f8B Rc7 f7 Nb4 Bf6 Bh6 B8g7 Be4 Bh8 Nd3 f8N+ Ke8 Ng6 Kd7 Bf7 Nb2 Ngf4 Bg5 Bd4 Bh4 Bhf6 Be1 Bg8 Ke8 Be6 Ne5 Bg8 Bhf3 d7+ Kf8 d8N Ke8 Nf7 Ng6 Bg2 Kd7 Nd6 Qe8 Bh3+ e6 Bh7 Rb8 Ka7 Qd8 Bg4 Qb5 Bh3 Nh4 B7f5 Ng6 Bf1 Qh8 B5h3 Rg8 Bd3 Qh6 Be2 Qf8 Bc4 Qb8#
B5RB/BR1R2N1/1Pq2q2/1p1qnN1N/3p1Bbn/2Bb1r2/1N6/rk1K2r1 w - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 b4 gxh4 a4 c6 axb5 Kf7 b6 Ke8 b7 Qc7 Ra3 Qa5 Ra1 Qd8 c4 Qc7 d4 Qd6 c5 Qh6 b5 Na6 b6 Bg7 Qe2 Nb8 Qb5 cxb5 Ba3 Be5 Bc1 Bd6 c6 Bc5 dxc5 Qd6 Nf3 Qc7 Ng1 Qd8 f4 Kf7 g4 Kf6 c7 a5 c6 h5 Nh3 d5 Bg2 e5 Nc3 d4 Kd1 e4 Na4 e3 Nb2 Nd7 b8B a4 Ba7 a3 Re1 a2 g5+ Kf7 f6 Ke6 f5+ Ke5 g6 Ne7 g7 Rf8 g8R Ng6 f7 Qf6 Nf4 h3 Rg1 h4 Nh5 h2 Bd2 h1R Bc3 h3 Rc1 a1Q Rg7 Rg8 f8B h2 Rh7 Qa3 Bg7 Qc5 Bh8 Rf8 Rg7 Qd5 Rg8 Bb7 c8N Nh4 Nd6 Bc8 c7 Rf7 Rf1 Rg1 Ne8 h1B Neg7 Qdc6 Bd5 Be4 Ra1 Bd3 Bg2 Qfe6 f6 Qed5 Rc1 Rf8 f7 Qf6 Rc2 Qfc6 Bh1 Qf6 Rg2 Ke4 Re1 Ne5 Rf1 Be6 c8N Qc6 Ne7 Bh3 Nef5 e2+ Kd2 Bg4 Ke1 Rfd8 f8B Rdb8 Bd6 Rf8 Kd2 Qd5 Kc1 Rf7 Rb8 Qc6 Rb7 e1Q+ Nd1 Qg3 Nb2 Qf3 Kd2 Neg6 Bf4 Ne5 Bb8 Ra6 Ra1 Ra8 Raa7 Qd5 Rd7 Qfc6 Rab7 Raa1 Be3 Qf4 Ba7 Qg5 Bf4 Qgf6 Nd1 Bf1 Ke1 Kd3 Rg3+ Kc2 Bg2 Kb1 Nb2 Bh3 Kd1 Rf8 Ne6 Rf7 Rg8 Bg4+ Bf3 Rf8 Neg7 Bd3+ Be1 Ra2 Ne3 Ra1 Rb8 Qd8 Bg3 Qb7 Bh2 Rf4 Nef5 Qf7 Bg3 Qdf6 Bh2 Re4 Bf4 Re2 Bd5 Qc7 Bb7 Qcc6 Ba8 Qfd5 Rbb7 Re3+ Kd2 Rf3 Kd1 Rg2 Bc3 Rg1+
B2q1R1K/RrR2bN1/Bpbp2Bn/1n4k1/1R1N4/3PR1r1/8/2NqNr1b w - - 0 1 legal: proof: b4 f5 a4 b5 axb5 f4 b6 f3 b5 Nf6 b7 Ng4 b6 Na6 b8N Nf6 b7 Nc5 exf3 Rg8 f4 Rh8 f5 Ng8 Qf3 Na6 Qe2 Nf6 Qe3 Ng8 f4 g5 f6 Nb4 f5 Bh6 Bb2 Bf8 Be5 Na6 Qb6 cxb6 h4 Kf7 g4 Nc7 Bf4 gxf4 g5 Na6 g6+ Ke8 Nh3 Bh6 Ng1 Bg5 hxg5 Nc5 Ke2 Na6 Kf2 Nc5 Ke1 Na6 Ke2 h5 Kd3 e5 Ke4 d6 c4 h4 f7+ Ke7 f8N f3 f6+ Ke8 f7+ Ke7 g7 h3 c5 f2 c6 h2 g6 Kf6 c7 Qd7 Na3 Qe8 Ne6 Rh5 f8R+ Qf7 Ne2 Nh6 g8B Rf5 g7 Rg5 Nc6 Bd7 c8R Rg3 b8R Nc7 Bh7 a5 g8B a4 Nc1 Ra7 Bg6 Rb7 Nc2 a3 Nc6d4 a2 Ng7 Nb5 Ne1 Kg5 Rc7 Qe8 Bd5 Bc6 Rf3 Qg8 Re3 Qd8 Bc4 f1B d3 Bh3 Rb1 a1Q Rb4 Bhd7 Rf1 Qa4 Ra8 Qd1 Rf8 Be8 Raa4 Bf7 Ra7 Na3 Ba6 Nb5 Bh5 Ng4 Bg6 h1B+ Rf3 Kh4 Kf5 e4 Nde2 e3 Nd4 e2 Re3 Qe8 Bg2 Nh6+ Kf6 Qd7 Nh5 Qe7+ Kg7 Kg5 Kh8 Qf6+ Ng7 Qd8 Nec2 e1R B2e4 Rf1 Ne1 Rb8 Bf3 Bd7 Bfb7 Bdc6 Ba8 Rb7
bK1rB2R/N1N1RNb1/R6n/8/1PRn1R2/Qb4p1/2NpRq1k/1q2n1q1 w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 c5 a4 cxd4 e4 b5 axb5 h6 f4 Ba6 f6 Ra7 f5 Bc8 Bg5 hxg5 e5 Qb6 Qc1 Kd8 Qd1 Rc7 Qc1 Rc6 Qd1 Kc7 f7 Rf6 exf6 Kd6 Na3 Qc7 Nb1 Qd8 Kf2 Ke5 Kg3 d5 c4 a4 b4 g4 h4 g5 c5 a3 h5 a2 b6 d3 b7 d2 h6 e6 c6 d4 h7 d3 c7 Na6 b8N Qd5 Nh3 Bb7 c8R Nc5 Qa4 d1B Na3 d2 Rh2 Qc6 Nc2 Be7 f8N Bf3 f7 Bf6 Bb5 Bd5 Qa3 Qb6 Be8 Bg7 f6 Nb3 Rc4 Nd4 Re2+ Kf5 Rae1 a1Q Nc6 e5 Ne6 e4 f8R e3 f7 Nh6 Nc7 Qb1 Na7 Ba8 Rg8 Be6 f8R+ Ke5 Rf4 Bf7 Rc3 Bb3 Rc4 Qf6 Rf8 Rg8 h8R Qf5 Rg2 e2 Rf6 Rf8 Ra6 Qf6 Kf2 g3+ Ke3 g4 Ng5 Qb6 Rh2 g2 Kd3 g1Q Kc3 g3 Rhf2 Nhf5 Nf7+ Kf6 Kd3 Kg6 Rfh2 Nh6 Rhf2 Kh5 Ke3 Nc6+ Ke4 Qc5 Rg2 Qcf2 Kd5 Nd4+ Kd6 Rg8 Kd7 Rf8 Kc8 Rg8 Rf5+ Kh4 Kb8 Kh3 Rf4 Rf8 Rc1 e1N Rd1 Qff1 Re2 Qff2 Re7 Kh2 Rc1 Nef3 Rce1 Rg8 R1e4 Ne1 Re2 Rf8 Ne5 Rf6 Nf7 Rd6 R2e5 Rd7 Re2 Rd8+
3Rr2N/1q1N2RK/3N1p2/5nr1/r1q5/5rP1/N1b1pbqB/BkB1RB1N w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Nh6 f4 Ng8 f5 Ba6 Nc3 Bb7 Nb1 Bc8 g4 Nc6 f6 Nd4 f7+ Kd7 Qf3 Ne2 Qf6 Ng3 hxg3 gxf6 Ke2 Kd6 Ke3 Kc5 Kf4 Kd4 b4 h5 d6 c5 d7 a5 Kf5 e5 Kg6 h4 g5 h3 b6 a4 b7 c4 b8N a3 b5 a2 b6 e3 b7 e2 Nc3 h2 Nh3 Kd3 Nf2+ Kc2 d4 e1Q d5 e4 d6 Bh6 f8N Qe7 d8N e3 d7 e2 Nf7 Ra3 d8B Qe6 Rg1 h1Q Nbd7 Qg2 b8B Qed5 Be7 Qb7 Be5 Qd1 B7d6 Qd4 Bc5 Ra4 Rb1 a1R Nh1 R1a3 Na2 c3 Nd6 Qc4 Rb5 Rb3 Bcd4 Kb1 Rd5 c2 Ba1 Bg7 Bed4 Nh6 Bb6 Rg8 Kh7 Rf3 Ng6 Nf5 Nh8 Bh6 g6 Re8 g7 Be3 g8R Bc5 Rg7 Bf2 Ne5 Be6 Nd7 Bf7 Rd3 Bd5 Bbd4 Be4 Ndf7 Be1 Ba3 c1R Nb8 Rd1 Bc1 Qh2+ Bh3 Rd2 Ba7 Rd1 Rd8 Rd5 Nd6 Bc2 Nd7 Rd4 Rf1 Rg4 Bg1 Qf2 Bh2 Rg5 Bg2 Qg1 Bh3 Bf2 Re1 Qf1 Bg2 Qg1 Bf1 Qg2
5N2/q1R2p1b/n1PbRR2/1Nk3r1/1Rq3Rp/2N3p1/1B1N2r1/qnQ1K2R w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 e6 axb5 Nh6 f4 Ng8 f5 Bd6 Nd2 Be7 Nb1 Bf8 h4 exf5 h5 g6 hxg6 Bg7 Qd2 Bh6 Qd1 Bf8 g4 Ke7 g5 Ke8 Bh3 Nh6 Bg4 fxg4 Kf1 Ng8 Kf2 Qe7 Ke1 Qd8 e4 Ke7 c4 a5 b4 h5 g7 d5 e5 a4 b6 a3 b7 h4 g6 d4 e6 d3 c6 Kd6 c5+ Kd5 b5 a2 c7 g3 e7 Nd7 e8N Be7 b8N Ra6 b6 Ne5 b7 Ra3 c6 Nc4 Nf3 Rh5 Bb2 Bf5 c8R Rg5 Nc7+ Kc5 Nc3 Nd2 N7b5 Qb6 Qc1 Nb1 Nd2 Nf6 g8R Qa7 g7 Ne4 Rge8 Bh7 g8R Bd6 Rc7 Ra4 Rf1 Rd4 Rf6 Rdd5 Rce7 Rdf5 Ree6 Rf2 Rc8 Rg2 Nd7+ Kb4 b8R Nc5 Rh6 Na6 Nf8 Kc5 Rb6 Na3 Rb1 a1Q Rhf6 Qa2 Ra1 Nb1 Rc7 Qb3 Nd4 Qa2 Rb4 Qc4 Ndb5 Rd5 Rg4 Rg5 Nf3 d2+ Kd1 Na3 Qc2 Qb3 Rb1 Rg1+ Ke2 Rg2+ Kf1 Qd5 Rbe1 d1Q Nd2 Qa1 Qc1 Nb1 Rd1 Rg1+ Ke2 Qda2 Rdf1 Qc4+ Ke1 Rg2 Rg1 Qb7 Rh1 Qa7
1b2kBQ1/PK2rN1R/2RppR2/2n4n/2RRr1rp/Bn1Bp3/8/1b2B1R1 w - - 0 1 legal: proof: h4 g5 hxg5 f5 d4 c5 dxc5 a5 b4 axb4 e4 d6 e5 Qb6 e6 Qc7 Nd2 Qd7 exd7+ Kf7 Ne4 fxe4 Kd2 b5 Ke3 h5 Kd4 e3 Kd5 b3 d8B b2 g4 b1N f4 b4 a4 b3 c4 b2 a5 Rh6 f5 Rf6 c6 Rg6 c5 Bh6 c7 Bd7 c8R Ra6 f6 Rg7 g6+ Kf8 c6 Rf7 c7 Rb6 a6 Be8 a7 Ba4 g5 Bc2 g7+ Ke8 g6 Rb7 Nh3 Bg5 Ra4 Na3 Qg4 b1R Rd4 Ba4 Bd3 Nc2 Ba3 Bh4 Ng5 Rf8 Nf7 Nd7 Rf1 Bb3+ Kc6 e6 Rf2 Rg1 Qg5 Nh6 g8R Ba2 g7 Nf5 Rh8 Bb1 g8R Rg4 Rh7 Ng3 Rf1 Re4 Rg1 Rb4 Rg6 Na1 Qg4 Rc4+ Kb7 Nb3 Rgh6 Ra4 Qg8 Rg4 Ra8 Bg5 c8R h4 Rcc4 Nh5 Rac8 Re4 R8c6 Rg4 Qg6 Rg8 Ba5 Rg7 Be1 Re4 Ne5+ Rf7 Qg7 Re7 f7+ Kd8 f8B Ke8 Nf7 Rg4 Rc3 Rc4 Rf4 Re4 Qg8 Bf6 Rg6 Bd4 R3c4 Bb6 Rff6 Bc7 Rg5 Bb8 Rd5 Rg5 Rdd4 Rg2 Rc7 Rgg4 R7c6 Ndc5+
2rb2nR/7B/b2N2B1/pRpKpp1R/3N1Rb1/k1B1pp2/P2BB1N1/6n1 w - - 0 1 legal: proof: g4 b5 e4 d5 c4 dxe4 cxb5 Nc6 h4 Nb8 g5 Qd5 g6 Qg5 hxg5 e5 f4 a5 f5 Ra7 Qf3 Ra6 Qf2 Re6 fxe6 Nc6 Qf5 Nb8 Qf6 gxf6 Ke2 Ke7 Ke3 Kd6 d4 h5 b4 c5 g7 h4 g6 f5 e7 h3 e8B f6 b6 h2 b5 Rh7 b7 Ne7 g8R Rh8 g7 Rh5 b6 Bd7 d5 Nec6 Ne2 Rg5 Rh8 Rg6 g8B Rg7 Bh7 Rf7 Bd2 Re7 Na3 Rg7 Beg6 Rf7 Nf4 Be7 Ng2 Nd4 Bc3 Nbc6 b8N Ne2 b7 Ng1 Be2 Bd8 Rf1 Ne7 Rf4 Rf8 Nc6 Ng8 b8R Bc8 Rb3 Ba6 Nd4 Kc7 Nab5+ Kb6 d6 Re8 d7 Rf8 Kd2 e3+ Kd3 Re8 Kc4 Rf8 Re4 f4 Kd5 f5 Bd2 Bc7 Rb4 Rc8 d8B f3 Bh4 Bd8 Ra4 Nh3 Rb1 h1B Bhe1 Ng1 Rb3 Rc7 Rf4 Rc8 Nh4 Bg2 Nd6+ Bb5 Rab4 Bh3 Ng2 Ka6 Rh4 Bg4 Rh5 Kb6 Bc3 Ka6 Rb2 Kb6 Bed2 Ka6 Nb3 Kb6 Rf4 Ba6 Nc4+ Kb5 Nd4+ Ka4 Nd6 Ka3 Rb7 Bf6 Rb5 Bd8
Rb4nR/2q2p2/3NN1Bn/R7/1b1R2q1/3b1bK1/RB2qPnN/2rrNB1k w - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 cxd5 Kd7 d6 Ke8 d5 Nf6 Qd2 Ng8 Qd4 exd4 e4 Kd7 g4 h5 b4 c5 b6 a5 b7 d3 g5 c4 g6 h3 b5 h4 e5 h2 b6 a4 g7 h3 Bb2 a3 Bc1 c3 Be2 d2+ Kf1 d1N Bg5 c2 Ra2 c1B Bh6 Nc6 b8R Bf4 b7 Nce7 Nd2 Nf5 Ngf3 Qc7 Ne1 Ra7 Rg1 h1Q Ndf3 h2 Ra8 Ra4 b8R Ba6 Bg5 Rc4 Bf6 Nfh6 Rb5 Rc1 Ra5 Bg3 Bc4 Be7 Ke2 Bf4 Rg4 Ne3 Bd3 Bg3 Rd4 Qg2 Bc4 h1B Nh2 Qg1 Bd3 Ng2 Kf3 Bf8 Be2 Bd3 Bf1 Ne7 g8B Rh7 Rc2 a2 Rb2 a1Q Rba2 Rg7 Bh7 Qb2 Be4 Rg4 Bg6 Re4 Bg7 Re2 Bf6 Rd2 Bh8 Rdd1 Bg7 Qbb8 Bh8 Neg8 e6+ Ke8 d7+ Ke7 d8N Kd6 e7 Qb5 Ne6 Qe8 Ng7 Ke5 d6+ Qb5 e8N Bf4 d7 Bb4 Bh5 Bg3 Ne6+ Kf5 Nf4 Kg5 d8R Kh4 Ne6+ Kh3 Nd6 Qbc4 Ng4 Bf4 Bg6 Qc2 Nf6 Kh2 Rf8 Bg3 Rfb8 Qb2 Ng4+ Kh3 R5a6 Qcc2 R8a7 Ne7 Nb5 Qh2 Rdd8 Qc4 Rbc8 Bb8 Rdd7 Qhc7 R6a5 Qbc2 Ba1 Qd2 Rh8 Ng8 Ra8 Qd4 Ne3 Kh2 Ng4+ Kg1 Bb2 Nf4+ Kg3 Bf3 Rd6 Kh1 Nh2 Qe2 Rd5 Ng2+ Nd6 Qde4 Rd4 Qg4+
b2Nr2k/rb1R1B2/2p5/K1bNnN2/1RPb2b1/1R1n4/1Bpr2q1/1N2R1NB w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 axb5 f5 exf5 d4 Qb3 Ba6 Qf3 Bc8 Qc3 dxc3 f4 Kf7 b4 Kg7 d4 e5 g4 h5 f6+ Kh7 f5 a5 f7 h3 d5 e4 f6 e3 b6 e2 b5 a4 g5 a3 d6 c2 Kd2 e1R Kc3 h4 Kb4 a2 b7 h2 b6 h3 Bg2 Rf1 Bb2 Nd7 b8R Nh6 b7 Nc5 d7 Rg8 g6+ Kh8 Bd5 Bd6 f8N Nf7 Ne6 Rd1 Ng7 Ne5 f7 Qg5 d8N Rd2 f8N Bg4 Nd7 Ra7 Nb6 Re8 Nf5 Nd3+ Kb5 Bc5 g7+ Kh7 g8B+ Kh8 Bgf7 Qg6 Na3 Qg8 Rb1 a1B Rd1 Qg6 Nb1 Qg5 Ba3 Bad4 Bb2 Qg7 Bc6 Qg6 Nd5 Qg5 Nf3 Qg7 Rhg1 h1B Rge1 h2 Ng1 Qg6 Ra8 Be4 b8R h1B Rb6 Qg7 Rab8 Bhf3 Nfe7 Bc8 Nf5 Ba6+ Ka5 Qg2 Rb3 Bh5 R8b4 Bg4 Nh6 Bef5 Bb7 Bc8 Bc6 Bcb7 Nf5 Ba8 Nf4 Qg3 Bh1 c6 Nd5 Qh3 Re2 Qg2 Rde1 Ng6 Re7 Nge5 Rd7 B6b7#
5R2/1bBq1np1/2R1bKpN/1Q3R1r/3r1R2/2b2NPN/qbn3RR/1kn3N1 w - - 0 1 illegal: Other
Q4q2/1p3NBB/BBbn3b/2Kn1NN1/1P3qNr/b4r2/1n3pR1/1N2k1Nb w - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 h5 f4 e5 g4 exf4 gxh5 a4 a3 Qd6 Ra2 Qd7 Rb2 Qd6 Rb3 axb3 a4 Qd8 Kf2 Kd7 e4 Kd6 d4 c5 h4 f5 h6 g5 h5 g4 e5+ Kc7 e6 Kd6 e7 b2 e8B f3 Ke3 f2 a5 c4 a6 c3 h7 g3 a7 c2 h6 g2 Ba6 f1B Bg6 Nc6 Rh2 f4+ Ke4 f3 Be3 c1Q Qa4 Nce7 Qa3 Rb8 a8N Nf5 Nc7 Nge7 Ne6 Bd7 Ng5 Bc6 Qa5 Bg7 Qa4 Rf8 h8N f2 h7 Bh6 Qa5 Be2 Qa2 Bf3+ Kd3 Qd2+ Kc4 Rf7 Qa5 Qf8 Qa2 Ng3 Bd3 Ne4 Ng6 Rf4 h8N Rh4 Ne5 Ra8 Nhg6 Qc1+ Nc3 b1N Ng4 Rd8 Qa5 Rd7 Qd8 Qd2 Qa8 Na3+ Kb3 Rc7 Nb1 Nc4 Bc2 Nb2 Bcd3 Nc8 Ne7 Nf6 Bh7 Qc1 Bd2 Be4 Bc3 Qf4 Ng6 Rf7 Ne7 Kc7 d6+ Kb6 d7 Nd5 d8N Nd6 Nf5 Rf6 N1f3 g1B Rg2 Bh2 Ng1 Bg3 Ndf7 Bh2 Rg3 Bh1 Rg2 Qe4 Bd3 Bf4 Bc4 Bc1 Ba6 Nd1 Bb2 Qf4 Ba1 Ba3 Bc3 Ne7 d5 Nb2 Be5 Ne8 d6 Nd5 d7 Nd6 Ng3 Qc1 Bc3 Rf3 Nf5 Qf4 Bf1 Nd3 d8B+ Kb5 Ba5 Qb8 Bg7 Qf8 Kc2 Ka4 Be2 Nb2 Ba6 Ne3+ Kd2 Kb3 Ke2 Kc2 Bc7 Kc1 Bb6 Nbd1 Kd3 Nb2+ Kc3 Kd1 Kb3 Ke1 Kc3 Qg3 Kd4 Nd5 Kc5 Qf4
n2bn2B/B1p1RRRR/N3r2n/3pkn2/q3r3/1BK2bp1/2PB1r2/2B2BQ1 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Nc3 h4 Ne4 Qg5 Ng3 hxg3 Qd5 Qh4 Qd1 Qd8 Kd2 Kf7 f4 Ke6 h4 g5 e4 a5 b4 d5 h5 g2 f5+ Kd7 h6 g3 b6 a4 f6 Ke6 f7 g4 h7 a3 b5 a2 b7 Qd6 b6 Bd7 Nf3 g1R Ne1 g2 Kc3 g3 Nd3 Be7 f8B Ra6 Bfh6 Nf6 Nb4 Bd8 Bhd2 Rf8 h8B Ne8 Rh7 Rf2 Qe1 Ra4 Na6 Qe7 Rb1 a1N Qd1 Nb3 Rg7 Nc6 b8B Qa3 b7 Nca5 Ba7 Nc4 b8R Nb6 Qe1 Nd4+ Rb3 Rf6 Qe3 Rh1 Qg1 Rf2 Rc8 Nf5 Rh7 Be7 Rd8 Bc8 Rd7 Bd8 Rdg7 Qa2 Rb4 Nh6 Rd4 Rh2 Rd3 Na8 Rf3 Rh5 Rf4 Rf5 Rf3 Rf7 Rf5 Re7 Rff7 Kd7 e6+ Kd6 Rg8 Rd4 Rgg7 Qa4 e5+ Kc6 Qh1 g1N Qh2 Nf3 Qg1 Rd7 e7 Nh4 e6 Kd6 Kb2 Ke5 Kc3 Nd6 e8R N4f5 e7 Re4 Ref8 Ne8 Rfg8 Nf6 e8B Rd6 Beb5 Rb6 Bbc4 Ne8 Bb3 Re6 Rgf8 Bd7 Re7 Bb5 Rf6 Be2 Rff7 Bf3
6r1/N4k2/n1R1n1pb/1BnppBRn/3rRp1B/2B1q2R/2B1P1b1/5BQK w - - 0 1 illegal: No possible last move, all moves rejected
3BN2B/brrB3q/pkB2pNp/1Np4r/1B5R/1K1b3N/1n2nP2/rB1Q4 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 d4 gxh4 b4 e5 d6 Qe7 d5 Qg5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 Kd2 Kd7 Kc2 c5 e4 h6 g4 a6 g5 d3+ Kb3 d2 b6 h3 b5 h2 b7 Rh7 b6 Ne7 e5 Qc7 e6+ Kd8 d7 Bg7 g6 Ba1 g7 Qf4 g8B Qe3+ Bd3 Be5 Bb2 Rg7 Nc3 Bg3 Bb1 Qd4 Nh3 Ng6 Nb5 Nc6 b8N Nf4 b7 Rh7 Ba1 Qe4 Bh8 Rg7 Bh7 Ne5 Bf5 Ned3 Bg4 Ke7 d8B+ Ke8 e7 f6 d6 Bf5 Nc6 Kd7 b8B Ra7 Bbc7 Nb2 Ba5 Rb7 Bb4 Ne2 e8B+ Kc8 Bf3 Rgc7 Ne5 Kb8 d7 Qc2+ Ka2 Bd3 Bc6 Bf4 Ng6 Be5 Rg1 h1R Rg4 Bf4 Rh4 Bd6 Na3 Ka7 Nb5+ Kb6 Ka3 Qc1 Kb3 Qc4+ Ka3 Qe4 Kb3 Bg3 Be7 Bd6 d8N Qf5 Nf7 Bg3 Qc2 d1R Nfd6 Qd7 Bd8 Qh7 Bed7 Rc1 Ba2 Ra1 Bb1 Bf4 Qd1 Bh2 Re4 Bf4 Ne8 Be5 Ng1 Rh5 Nh3 Bh2 Be7 Rc8 Rg4 Bb8 Bd8+ Rcc7 Rh4 Ba7
2R3B1/pnB3KB/3n2N1/1BBn1N2/1P1q3B/nb3Qr1/1B2q3/1r1nB1kn w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Nd7 h4 Ngf6 b4 Rg8 f5 Kf7 Ra3 Bh6 Rf3 Nb8 Rf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Rh8 Qb3 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 d4 Kd6 f6 e5 g7 c5 f7 h5 f8B+ Ne7 g8B h4 g6 f3+ Ke3 f2 g7 c4 b6 h3 b7 h2 Qa4 c3 Ba6 f1N+ Kf2 e3+ Kf3 c2 Ke4 e2 Qa2 e1Q+ Ne2 Ne3 Qa3 Nd1 Nc3 Be6 Bh7 Nc6 g8B Na5 Bb5 Nc4 Bb2 c1N Rf1 Qf2 Ng3 h1N Nce2 Nb3 Nf4 Nba5 Ng6 Qe2+ Qe3 Rc8 b8B+ Rc7 Rg1 Nb7 Rg2 Qf1 Rc2 Qe2 Bf7 Rg8 Rc1 Qh2 Qf3 Rg7 Bfg8 Qd2 Nf1 Qe2+ Ne3 Bf7 Nf4 Rg3 Ng6 Nb6 Rc3 Nc8 Rc6+ Kd7 d6 Ke6 Rc1 Nd5 d7 Rc3 Rc2 Rb3 Bc7 Qf6 d8B Qh8 Bc3 Rb1 Bh4 Qf6 Bg7 Qd8 Bb6 Kd6 Kf5 e4 Ng4 e3 Be1 Qd7+ Kg5 Ke6 Kh6 Ncd6 Rc8 Qd8 Bc5 Qf6 Qg2 Kf5 Bh8 Qd8 Kg7 Qb6 Qh3 Ke4 Nh6 Kf3 Nf5 Qd8 Qg4+ Kg2 Qf3+ Kg1 Ne7 Nf4 Nf5 Bb3 d5 Qf6+ Kh6 Qc3 Be5 Qd4 Kg7 Ne4 d6 Nd5 d7 Ned6 d8B Qf2 Be6 e2 Bc7 Qf1 Bc3 e1N Beg8 Nc2 Be1 Na3 Bef6 Qe2 Be5 Qdf2 Bb2 Qd4+
2B2nn1/1Bqp1rNp/B1R5/B2P3B/2p1B3/KQB2qBk/3n1r2/3bRq2 w - - 0 1 legal: proof: c4 e5 f4 b5 cxb5 g5 fxe5 Na6 Kf2 Nb4 Qb3 Nc2 a3 Nxa3 Qd1 Nc2 g4 Rb8 h4 Rb7 Nc3 Ne7 Nd5 Bg7 Nf4 gxf4 g5 Rb8 g6 Bf6 Ra2 Ra8 Ra1 Bg5 hxg5 Ng8 e4 Ke7 Ke2 Ke6 Kd3 a5 Kc4 f5 Kb3 c5 d4 f3 g7 f4 g6 f2 b6 f3 b7 Rb8 Bd2 Ra8 b8B Ne1 Rc1 a4+ Ka3 Ra5 b4 Ba6 b5 Bb7 b6 Nf6 g8B+ Ke7 g7 Nd5 e6 Kf6 e5+ Kf5 e7 Kg4 e8B Ra7 e6 Bc6 e7 Rc7 b7 Rc8 Ba6 f1Q Ba5 Nf6 Bd5 Ng8 Bg6 Ng2 e8B Nf4 Be5 Ne6 b8B Qc7 Bge4 Nf8 Qb3 f2 Nf3 c4 Nh4 Qe2 Nf5 f1Q Re1 Qef3 Rh6 Bb7 Re6 Kh3 Bh5 Re8 Rg6 Re7 Rc6 Rf7 Bg3 Ba8 Bc3 Bb7 Ba7 Ba8 Bb6 Bb7 Bba5 Ba8 Kb4 a3 Bc8 a2 Ka3 a1N Ba6 Ne7 g8B Bb7 Ng7 Ba8 Qb1 Nb3 Qd1 Nd2 Qb3 Q3g2 Bc8 Rf2 Bgf7 Ng8 Bhf3 Qgh1 B7h5 Bb7 Rd6 Ba8 Bdb7 Qhg2 Ba6 Bc6 Bf4 Ba4 Bg3 Qgh1 Beb7 Qhg2 Bfe4 Qf3 Qb5 Bd1 d5 Nf6 Rc6 Rg8 Ne6 Rg7 Qb3 Rf7 Ng7 Ng8
4BrB1/1nRnQ1qp/4bB2/B5BP/1R1n1Bnb/N3qB1k/KB2r3/4nq2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Nc3 f3 Nd5 d6 Nf4 d5 cxd5 gxf4 b4 Ke7 d4 Kf6 Kd2 Kf5 Kc2 Kg4 Kb1 c5 e4 a5 h4 f5 e5 c4 e6 a4 h5 c3 b6 a3 b7 c2+ Ka2 Bg7 b5 Qe7 d6 Na6 b8B Ra7 b6 Qb7 d7 Bh6 d8B Nc5 e7 Nf6 e8B Qg7 b7 Rf8 d5 Bg5 d6 Bh4 Ne2 f2 d7 f3 Qd6 f4 Bb2 c1Q Ba5 Qe3 d8B Nfd7 Qe7 Ra6 g3 Re6 Bg2 f1Q Nc3 f2 Rb1 f3 Bf4 Re4 b8B Nb7 Rg1 Re6 Bh1 Kh3 g4 Re4 g5 Re5 Kb3 a2 g6 a1N+ Ka2 Nc2 Bg5 Ne1 Nb5 Qc4+ Ka1 f1N Rg4 f2 Qf7 Rc5 Bd5 Qf6 g7 Nb6 g8B Be6 Na3 Qg7 Bdf6 Nd2 B2e5 f1N Rc1 Nb3+ Ka2 Nh2 Bf3 Qf1 Qe7 Rc2+ Bb2 Re2 Rb4 Ng4 Bbf4 Nd7 Rc7 Nd4+
1r1NN1b1/nNb4N/2N1p1k1/1R1B1p1b/2pNq2r/2Bn3Q/K1Pn1r2/5NN1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 g4 Qd6 f4 Qd8 e4 h6 exd5 gxf4 g5 h5 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 h4 c5 d4 a5 Kd2 f5 Kc3 Kf7 Kb3 e6 h5 f3 d6 f2 b6 c4+ Ka2 g3 h6 g2 b7 a4 d5 a3 b5 Qb6 h7 Be7 d7 Qc7 d8N+ Kg6 b6 Qe5 d6 Nf6 d7 Qh2 Qd3 Bd6 Bb2 Kg7 g6 Qh4 Nd2 Bc7 Qh3 Qe4 Bc3 Nc6 b8N Na7 Nbc6 Rb8 Nd4 Nh5 Nb7 Nf4 d8N Bd7 Be2 f1B Bf3 Kf6 g7 Kg6 g8N Be2 Nf1 Be8 Nf6 Bf7 Ne8 Bd1 Ba5 Nd3 Bc3 Qg4 Bd5 Bg8 Nbd6 Qe4 b7 Rc8 b8N Bh5 Nbc6 Rb8 Nge2 g1R N6b7 Rg4 Ng1 Rg3 Rh2 Rf3 Re2 Rf2 Re1 Qg4 Rb1 Qe4 Rb5 Nc5 Ka1 a2 Kb2 a1N Ka3 Nab3 Ka2 Nd2 Nh2 Bf7 Nf1 Rf8 h8N+ Kh7 Ng6 Rh8 Nh4 Nd3 Nhf3 Bg8 Ng5+ Kg6 Nh7 Bd1 Ng5 Rh4 Nh7 Bh5
3r2Q1/N1NKn2N/NpR2Np1/3p2P1/N1pn1B1q/2NBN3/1br5/nb2n1k1 w - - 0 1 illegal: No proof kernel
3Bn1B1/R1q1n3/1nRR3B/q2R2qk/R1nR4/2Bnbr2/2PbN1N1/5b1K w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 c5 a4 cxd4 f4 h5 e4 b5 axb5 Rh7 e5 Ra7 f6 Rh8 Qg4 hxg4 f5 Qb6 Kd1 Kd8 Ke1 Rc7 Kd2 Rc6 Ke1 Kc7 f7 Rf6 exf6 Kd6 Kd2 Qc7 Ke1 Qd8 Kf2 Ke5 Kg2 g5 b4 d5 h4 a4 h5 g3 h6 d3 b6 d2 h7 Kf4 b7 Kg4 b5 d1N b6 e5 Bb2 a3 Rh5 e4 Rh6 e3 Nc3 d4 Nge2 d3 Kg1 d2 Ne4 g2 Nc5 a2 Ne6 Nc6 b8B Ba6 b7 Nc3 Bc7 d1N b8R Bb4 f8B Na4 f7 Nce7 f6 Nb6 Ra8 Bd2 Bc3 Nb2 N6f4 N2c4 Ra7 Qc8 Rd1 a1Q Bd8 Qc7 Rg6 Bb5 Bh6 Qa5 f8R Kh4 f7 g4 Ra1 Nf6 Ra4 Ne8 Rc6 Rg8 Kh2 g1B+ Kh1 g3 Ng2+ Kh5 h8R Rg6 Rfg8 Rf6 f8R Rf3 Rg4 Bf2 Rff6 Ba6 Nd4 e2 Rfd6 e1N Ne2 Bfe3 Rgd4 Nd3 Rh7 Ng6 Rhd7 Ne7 Nh4 Bb5 Bh3 Ba6 Be6 Bb5 Bg8 g2+ Kh2 Rf4 R6d5+ Rf5+ R7d6 g1Q+ Kh3 Qg4+ Kh2 Qg5 Kh1 Rf3 Ng2 Ba6 Rg4 Bc8 Rgd4 Bh3 Nh4 Bf1 Ng2 Rf5 Bg7 Rf7 Bh6 Rf3
K3N1N1/p2N4/3qB1P1/3B2Bq/1q2BNnb/2R1nq1r/2rn1N1k/2rNR3 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 g5 Qa4 f3 Qf4 gxf4 h3 Nf6 g5 Bg4 hxg4 Ng8 Kf2 Ke7 b4 Kd6 d4 c5 e4 f5 b6 h5 e5+ Kd7 d6 Ke6 d5+ Kd7 b5 h4 b7 h3 g6 c4 b6 h2 g5 c3 g7 c2 e6+ Ke8 g6 Ne7 g8B Rh7 Bc4 Nc8 d7+ Ke7 d6+ Kf6 e7 Kg5 e8B Kg4 Nh3 Nc6 b8N Rf7 b7 Rg7 Ra3 Ne5 Bge6 Ne7 Re1 h1Q Nc3 Nd5 Nc6 Rc8 b8N Rh7 Nd1 Ne3 Bcd5 Be7 Rc3 Rh4 Bd2 c1R B8f7 Qa5 d8N Qb4 d7 Bf6 Nb7 Rhh8 Ng5 Qh5 Ne4 Kh3 d8N Kh2 Ne7 Rh6 Nd7 Bh4+ Ng3 Rh8 Be4 Rc7 Ng8 Rc8 Ra3 R8c2 Nd6 Rh7 Ne8 Rh6 Rf1 Qd6 Rc3 N5g4+ Ke1 f2+ Ke2 Qb4 Kd3 f3 Nh1 f4 Re1 f1N Nhf2 Qd6+ B6d5 Rh8 Kd4 Rh7 Nd3 f2 Ne6 f3 Nef4 Rh6 Be6 Rh8 Rc6 Rh7 Bb4 Rh8 Rc3 Nd2 Ba3 f1Q N3f2 Qfa6 Bb4 Qb8 Kc5 Qa4 Ba5 Qab4+ Kc6 Rh6 Bb6 Q8d6+ Kb7 Rh8 Ka8 Rh6 N2h3 f2 Bd8 f1Q Bg5 Qf3 Nhf2 Bg3 Bf7 Qh4 Bf6 Qg5 Be7 Rh3 Bfe6 Qh5 Bg5 Bh4
B1rn2bR/BpB2k2/5Nr1/R1n1nBn1/RR4P1/R1n3bn/4K1p1/4R1N1 w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 h5 d4 g5 g4 h4 b4 axb4 d6 c6 d5 Bg7 d7+ Kf8 Qb3 Bh6 fxg5 Kg7 e4 Qc7 Qg3 hxg3 e5 Qd6 exd6 Kg6 Nh3 Bg7 Ng1 Bf8 d8R e5 h4 f5 a4 b3 a5 b2 h5+ Kf7 d7 f4 d6 f3 h6 f2+ Kd1 e4 a6 c5 a7 g2 h7 c4 Rh5 e3 Rh1 c3 Rh2 c2+ Ke2 Nf6 Ra4 Nc6 Nc3 b1N Rh3 Rg8 h8R Nh7 Nd5 Rg6 Re8 Nd8 Nf6 Rb8 a8B Nc3+ Kf3 e2 Be3 c1N Ba7 e1N+ Ke3 Rh6 Bd3 Rg6 Bf5 f1N+ Kf2 Nf3 Re1 N1h2 Rb4 Ne6 d8R Ne5 d7 Nhf3 Re8 Bg7 d8B Nb3 Bc7 Nbc5 Rd8 Bf8 Rdd4 Bd6 Ra4 Nd8 Rdb4 Be6 Rg3 Nb5 Ke2 Rc8 Rh3 Nd2 Rha3 Nde4 Rea1 Nf2 Re1 Nf8 Rh5 Nh3 Rh8 Kg7 Rh5 Bg8 Rh8 Nfe6 Rh5 Rh6 g6 Kf8 g7+ Kf7 Rg5 Rg6 Rh5 Neg5 Rh8 Nef3 Rh5 Bg3 Rh8 Bh7 g8R Ne5 Re8 Bg8 Re6 Bh2 Rea6 Bg3 R6a5 Nc3+
1N2Nn2/1Bb4K/1R1bbRRp/1NR4b/kB3r2/n1b2n1R/Nnp1R2P/8 w - - 0 1 legal: proof: d4 b5 a4 d5 axb5 Nf6 c4 dxc4 e4 Bh3 e5 Ng8 d5 Qd6 exd6 Bc8 f4 e5 b6 g5 Qg4 a5 Qh3 e4 Qd3 c6 Qf3 Ra7 Qg3 Re7 Qf2 Re5 fxe5 Kd7 Qf6 Ke8 Qf4 gxf4 Kf2 Kd7 b4 f5 g4 f3 Kg3 f2 Kh4 a4 Kh5 c5 g5 a3 b5 a2 b7 h6 Kg6 c3 b6 e3 Na3 c4 Nb1 e2 Ba3 e1B Bb4 f4 Na3 c2 Bg2 f1N Nb5 c1N Ne2 f3 Nec3 Na6 b8R f2 b7 Nd2 Rf1 Nd3 Rc1 a1B Na2 c3 Bh1 Nc7 e6+ Kd8 e7+ Kd7 e8N Nf6 Rc2 Nf3 Re2 c2 Bg2 Be5 Bh1 Kd8 d7 Bfd6 Bg2 Ke7 d8R Be6 Rdc8 Kd7 Kg7 Bg3 g6 Bc3 Bh1 Nb2 Bg2 Na8 Rc5 Nb6 Bh1 Bc7 d6 Rf8 Bg2 N6c4 Bh1 Nh5+ Kh7 Na3 g7 Rf4 g8R Nf6+ Kh8 Nd5+ Kh7 Nb6 Rg4 Bb3 Rg6 Be6 Rh5 Kc6 d7 Bd6 d8R Nd7 Rdc8+ Kb6 Rcc5 Ka6 Rg1 f1B Rf6 Bfh3 Rh4 Bhg4 Rh3 Bh5 Bg2 Bc7 Bh1 Rd4 Rgg2 Bgd6 Rgg6 Kb6 Rc8 Rf4 b8N Nd4 Be4 Nf3 Bb7 Nac4 Ba3 Ka5 Bb4+ Ka4 Rc6 Na3 Rb6 Bd8 Rc4 B8c7 Rc5 Nf8+
1rk1b2b/pR6/2PrR2N/1BnNK2p/2q5/6pN/qNb5/BN2nNRR w - - 0 1 illegal: No possible last move
1k3b1n/r1N3q1/1nrPb1Rp/nN1pNNN1/2BnR2B/4B3/N3Bp2/4K3 w - - 0 1 legal: proof: f4 e5 a4 exf4 c4 g5 h4 b5 axb5 Be7 hxg5 Bf8 d4 Ke7 d5 d6 c5 c6 cxd6+ Ke8 d7+ Ke7 d6+ Ke6 Qd5+ cxd5 e4 f5 g4 a5 b4 f3 g6 a4 e5 h6 b6 a3 b7 f4 g5 a2 b5 Ne7 b6 Ra5 g7 Nf5 g8N Qe8 d8B Kd7 e6+ Kc6 g6 Ra4 e7 Nd7 b8N+ Kb7 g7 Rh7 Be2 Nd4 Na6 Qg6 e8N Ka8 b7+ Ka7 b8N Ne5 Bh4 Bd7 Nc6+ Kb7 Nh3 Bc8 Na3 Rc4 Nab4 Nf7 Nb5 Be6 Nge7 Nh8 g8B Qg7 Ne5 Kb8 Be3 Rc6 Rb1 a1N Rg1 Nab3 Na2 Na5 Nf5 Qc7 Ng5 Qg7 Nec7 f2+ Kd1 f1N Ke1 f3 Rb4 Nd2 Rg3 N4b3 Re4 Ndc4 Bf7 Nb6 Be8 Nd4 Bd7 Qe7 Bc8 Qf6 Ba6 Re7 Na7 Qg7 Bac4 Rf7 Nab5 Rd7 Nh3 Rf7 Rg6 Rd7 Ng5 Rf7 Na8 Ra7 Nac7 f2+
R1BR1Bnb/1pk2PB1/2p1pRrq/pr4Rn/1B1R3N/q1N5/2p1K2R/8 w - - 0 1 illegal: No proof kernel
q1n3k1/qq2pN1N/2nq2Nb/n4R1N/r5B1/2R1B1N1/4P2q/Nbr1R1KR w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Qg3 hxg3 f4 Kf7 b4 a5 h4 c5 d4 g5 h5 g2 Kf2 c4 f5 c3 d6 c2 d7 a4 d5 a3 b6 a2 d6 Nh6 f6 Ng8 b5 Ra5 h6 Nc6 h7 Ra7 b7 Qe8 b8R Ne5 d8R Bf5 b6 Qc6 d7 Qd6 b7 Nh6 Na3 Nc6 Rbc8 Ra4 Be3 c1N b8N Bb1 Na6 Nf5 Nc5 Bh6 Nh3 Nb3 Nc2 Nba5 Ne4 Re8 h8N+ Kg8 Ng3 g1Q+ Ke1 Qg2 Ng6 Qgd5 Kf2 Qb3 Kg1 Qb7 Nhf4 Rf8 Ne4 g3 Bh3 g4 Nh5 g2 Neg3 Re8 Rc7 Rf8 Ra8 Rc8 d8N Qd3 Ra7 Nd6 Nf7 Qda6 Rd7 Rc7 Ra8+ Nc8 Rd5 Qd3 Rf5 Qd6 Na3 Bc2 Rb1 a1Q Re1 Bb1 Nc2 Qa2 Na1 Qad5 Rb8 Qa8 Rb3 Qb5 Ne4 Qba6 Rc3 Q6b7 Kf2 g3+ Kf3 g1Q Bg4 g2 Neg3 Qh2 Kf2 Qh4 Kg1 Nb8 Rd3 Rc1 Rc3 Qh3 Nfh8 Nbc6 f7+ Kh7 f8N+ Kg8 Nf7 Qh4 Bh3 Qhf4 Nh7 Qfd4 Bg4 Qda7 Kh2 g1Q+ Kh3 Qf1+ Kh2 Qh3+ Kg1 Qh2+
1BnB2b1/N2pB2r/2BrBb2/N2P1R2/rN5q/1q3Bnk/pN2b3/1n2R1K1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Qg4 Bb7 axb5 Ba6 b6 Bb7 b5 Bc8 Qb4 cxb4 g4 Kf7 f4 Kf6 Kf2 a5 d4 e5 c4 h5 c5 e4 g5+ Ke7 f6+ Ke6 c6 Kf5 c7 Kg4 b7 a4 b6 a3 f7 b3 d5 h3 g6 h4 g7 b2 f5 a2 f6 h2 Nc3 b1R Bf4 h3 Nge2 Rc1 Na4 Bd6 f8B Ne7 g8B Na6 b8N Rh7 b7 Nb4 f7 Be5 Nb2 Nc2 Bg2 Ra4 Nd4 Na3 Ndc6 Nb1 Re1 h1B Kg1 e3 Nb4 e2 N8c6 Bf6 b8N Ba6 Na7 Nc8 Be7 Rc6 f8B Rd6 Bf3+ Kh4 Rf1 e1Q N8c6 Qc3 Be6 Be2 Na5 Qb3 Bg7 Qh8 Bgf8 Bg2 Bd8 Bh1 Bfe7 h2+ Kf2 Bg2 Be5 h1N+ Kg1 Bh3 Bf4 Nb6 c8B Ng3 Bb7 Nc8 Bc6 Bg4 Be5 Kh3 Rf2 Na3 Re1 Nb1 Be4 Bf5 Rf4 Bfg4 Rf5 Bh5 Bf4 Bf7 Bf3 Bg8 Bb7 Rc6 Bb8 Rd6 Bc6 Qg7 Bf8 Qg5 Bfe7 Qh4
b2q1N1k/1Rn4q/NqR5/4N2R/1Rp1RKrN/R1P3rp/qbB5/2Bn2b1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 gxh4 Qe2 Ke7 dxe5 Ke8 e6 Qg5 e5 Qd8 Qe4 fxe4 Ke2 h5 Ke3 c5 b4 d5 f4 a5 g4 c4 f5 a4 g5 h3 b6 h4 b7 h2 e7 Kf7 e8N a3 b5 d4+ Kf4 a2 c3 d3 b6 e3 f6 d2 Bg2 d1Q Nf3 e2 Nc7 e1Q Na6 Bc5 Nbd2 Nh6 g6+ Kg8 e6 Qb3 e7 Qg1 g7 Ng4 Ne5 Nf2 Ndf3 Nd1 e8R+ Kh7 f7 Rg8 Re7 Bh3 Bf1 Bg2 Re6 Qf2 Rc6 Qfb2 Be2 Bg1 Bf1 Qb4 Be2 Qbd6 Bd3+ Qg6 Bc2 Qb1 Nb4 Na6 b8R Nc7 b7 h3 Na6 Qb6 Nh4 Be4 Rb1 a1B Rb3 Bb2 Ra3 Bf2 Re1 h1Q Re3 Qhg2 Re2 Bd5 Re4 Bg1 f8N+ Kh6 Rc5 Qh7 Rc8 Ra7 b8R Ba8 Rb7 Qe2 Rb5 Qg2 Rb4 Qe2 Nc5 Ra5 Na6 Rd5 Raa4 Rd3 Ra1 Rg3 Ra3 Rh8 g8R Qh2 Rg5 Rg8 Neg6 Kg7 Ne5+ Kh8 Rh5 Qg2 Bb3 Qc2 Ba4 Qb1 Bb3 Qa2 Bc2 Nb5 Rc5 Nc7 Rc6 R8g4+
2RR2rN/1k5b/R2Bn2p/B3b2q/2Rrrn2/4BR1B/1pq2R1P/n1N3Kn w - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 dxe5 f5 a4 fxg4 Qd4 Bd6 axb5 Ke7 b6 Ke8 b5 Bf8 Qb4 cxb4 e4 d5 c4 Kd7 f4 g5 Kf2 a5 c5 h6 f5 b3 f6 d4 f7 d3 b7 Kc7 c6 a4 e6 d2 e7 d1N+ Kg2 b2 e8R a3 e5 g3 e6 a2 e7 g4 Nc3 Qd2+ Nce2 Bf5 Rd8 Qc2 e8R Nf2 Re4 Nf6 Nh3 Bh7 Be3 Nd5 Rc4 Bg7 f8R Nf4+ Kg1 g2 Nc1 Nd7 Ng5 Rg8 Nf7 Be5 Nh8 Nc5 b8B+ Kb6 c7 Ra4 c8R Kb7 b6 Nce6 Bd6 Rb4 R4c5 Rd4 Rc4 Re4 Bb4 Rd4 Ba5 Re4 Rb1 a1N Rf6 Rg7 Rg6 Rd7 Rf6 Rdd4 Rg6 Ka6 b7 Ka7 b8B+ Kb7 Bbc7 N2d3 Nb3 Nec5 Ra6 Qe2 Bd6 Qe1 Rbc1 Qd2 R1c2 Nce6 Nc1 Qc3 Re2 Qc2 Rd2 Nb4 Kf2 g1Q+ Ke1 g3 Re2 g2 Bd2 Qe3 Rg1 Qf3 Be3 Qh3 Kf2 Qh5 Rh1 g1R Bh3 Rg8 Rf1 Re8 Rd2 Nbd3+ Kg1 Nf2 Re2 Nh1 Rf3 Rf8 Ref2 Rg8+
1k2q1R1/6p1/1B4Kb/nbNp3R/rN1Rn1P1/RpN2p1N/r4nBR/6Rb w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 fxe5 c5 dxc5 h4 Qd3 Ra7 Qh3 Ra8 Qg3 hxg3 Kd2 d5 Ke3 Kd7 Kf4 Kc7 c4 b5 a4 f5 h4 b3 e4 g2 c6 b4 a5 b2 h5 b3 c5 Qd7 Kg5 f4 h6 f3 h7 Ra6 e6 Rb6 a6 Rb7 a7 Ne7 a8R Rb5 e5 Rb7 Nh3 g1N Rh2 Rb6 Be3 Ne2 R8a3 Nf4 Nc3 b1B Bg2 Neg6 e7 Qd8 e6 Bd3 Rg1 Nh5 Bd4 Qd7 e8R Bca6 e7 Bf1 Rd8 Bab5 e8R Ngf4 Re4 Rg8 h8R Ng3 Rh5 Nd3 Kg6 Be7 Bf2 Bd6 Rd4 Bf4 Be3 Rh8 Rg8 Bh6 Bf2 Qd8 Be3 Kc8 Bf2 Rb7 c7 Ra7 Be3 Kb7 c8N Nc6 Nd6+ Kb8 Nb7 Na5 c6 Ne4 Nc5 Ndf2 c7+ Ka8 c8N Qe8+ Kf5 Kb8 Ne7 Ra6 Bh1 Bg2 Nc6+ Kc8 Nb4 Kb8 Bg5 Nb7 Bd8 Ra4 Bb6 Na5 Nf4 Bh3 Bg2 Rh7 Bf1 Bg2 Nh3 Bh1 Bg2 Bf4 Rgd1 Rh6 Rda1 Rc6 Rg1 Bh6 Ng5 Rc7 Nh3 Ra7 Nca2 Re7 Nc1 Nd2 Nca2 Re2 Nc3 Nde4 Nf4 Qf8+ Kg6 Ra2 Nh3 Qe8+
b1B2B1r/N2R3R/1p1b1NNN/3K4/RPR1p1bb/qB1bk3/1B1b4/4b3 w - - 0 1 illegal: No possible last move, all moves rejected
nkN3R1/2R1r1r1/2R1b1b1/r1r1N1P1/1B1r1b2/p1N1B2p/BNR3K1/1Bq5 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 exf3 h5 Nc6 Qa4 Ke8 Qf4 gxf4 g5 Ne5 Ra3 Qd7 Ra1 Ng6 hxg6 Qd8 Kf2 Kd7 b4 c5 d4 Kc7 e4 h5 d6+ Kb7 g7 a5 d7 f5 b6 a4 d5 a3 d6 c4 b5 h4 e5 c3 e6 c2 e7 Ra6 e8N Nf6 g8B Ra4 Ne2 Re4 Nbc3 Qc7 d8N+ Kb8 b7 Rd4 d7 Nd5 Nf7 Nb6 d8B Na8 Be3 c1R Ned6 Be6 Be7 Rh7 Nc8 Rg7 Na4 Rc5 Nb2 Qc6 Kg1 f2+ Kh2 f3 Rc1 f4 Rc2 Qc7 Nc3 Qc6 Bh3 f1B Bf5 f2 Ne5 Bd3 Rhc1 f1R Bg6 Qc7 Kg2 Re1 B6h7 Bg6 Bd6 Rcd5 Bb4 Bd6 Bf7 Rc5 Bfg8 Bd7 Ba2 f3+ Kh2 f2 Kg2 Bf7 Be4 f1R Bh7 Qc6+ Be4 Kc7 b8R Bg6 Rb6 Be6 Ra6 Kb7 b6 Kb8 b7 Rf5 Rb6 Qc7 Rc6 Ra5 Bed5 Rc5 Bb1 Ra5 Bda2 Rc5 Ng4 Bf4 Ne5 Ra5 Nf7 Rfb5 Ne5 Rc5 Ncd1 Qd7 Rc7 Qd6 Nb6 Bc8 Ned7+ Ka7 Rc4 Rcb5 Bg1 Rdd5 R1c2 Ree7 R4c6 Rbc5 Ne5 Be6 Nc3 Rd1 Be3 Qd2+ Kf3 Qc1 Kg2 Rd4 b8R+ Ka6 Rcc8 Ka7 Rg8 Rd8 Rbc8 Kb7 R8c7+ Kb8 Nc8 Rd3 Ne4 Rd4 Nc3 h3+
kNN3q1/3rRB2/1b2N2B/3p1pnN/1Bn1r3/P1R2Rr1/3p1qBK/6Rq w - - 0 1 illegal: No possible last move
R3nrbb/p1RR3p/1r1rq1N1/B1rn1N1k/5r2/BnNN3P/1B5R/1K3B2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Qc2 d5 Qf5 f3 Qf4 gxf4 cxd5 Be6 Na3 Bg4 Nb1 Bc8 Kd1 c5 Kc2 f5 d4 Kf7 b4 Kg6 e4 f2 g4 c4 d6 f3 b6 f4 b5 c3 d5 Ne7 b7 Be6 g5 Qd7 b6 Na6 b8R Bf7 h3 Qc6 b7 Bg8 d7 Qf6 d8R Kh5 g6 Qf5 d6 Bf7 d7 Nd5 g7 Nac7 g8N Qg4 e5 Be7 e6 Bb4 e7 Ne8 Ba3 Qe6 Ne2 Bc5 Rbc8 Bd4 Nc1 Rb8 Nd3 Bg7 Kc1 c2 Nc3 Bd4 Kb2 c1N Kb1 Nb3 Rc7 Rc8 b8B Bf6 Nh6 Rf8 Nf5 Bg8 Rh2 Bh8 Nh4 Rf6 Ng6 Rf8 Rb7 Rc5 Be5 Rf6 Ra8 Rf8 d8B Rf6 Bg2 f1R+ Ka2 f2 Rc7 f3 Rd1 Re1 Kb1 f1R Bd4 Rf2 Bf1 Rf4 Bg7 Rd2 Be5 f2 Bg7 Nef6 e8N Ree2 Nd6 Ne8 Be5 Ree4 Nf5 Rb4 Rf7 Rb7 Ba5 Rb6 Rc7 Nb4 Ne1 Rdd6 Nd3 Nd5 Ne4 Rb7 Beb2 Rbb6 Rd2 Qf6 Nc3 Qe6 Bg2 f1R+ Rd1 R1f2 Bf1 R2f3 Rh1 Rd8 Nfe7 Ra4 Nc1 Nb4 Rh2 Rf8 Nf5 Rd7 Rd6 Nd5 Nd3 Rf4 Rcc8 Rdc7 Rd7 R7c6 Rcc7 Rd6
5kb1/3Q4/Q1N5/2qQ3q/1PQ1r1qn/np6/QBn1Q1N1/1RK2N1Q w - - 0 1 legal: proof: g4 a5 e4 f5 exf5 h5 gxh5 b5 c4 d5 cxd5 b4 a3 a4 axb4 a3 Ra2 Ra5 bxa5 e6 b4 Kf7 Rc2 Ke8 Rb2 axb2 Na3 c5 Nb1 c4 Bd3 Be7 Bc2 Bc5 Bb3 Bb6 axb6 cxb3 h4 g5 f4 g4 d4 e5 Kd2 e4 h6 g3 d6 g2 b7 Nf6 h5 Qd7 d5 Ng4 f6 Nc6 b8N Qe7 d7+ Kf7 d8Q Bd7 d6 Nge5 h7 Nd3 f5 Qe6 h6 Nf4 Nf3 g1N Ne1 Ne5 Nc6 Qe8 Qe2 Ned3 Ng2 Bc8 d7 Rf8 h8Q Qe6 h7 e3+ Kd1 Qe5 Nd2 b1Q Nf1 Qc5 Qc7 Nf3 d8Q+ Bd7 Qa5 Rg8 Qaa2 Be6 Qd7+ Kf8 f7 Nfe1 Qhd4 Ne5 h8Q Nc2 Qdc4 Nfg6 Rg1 Bd5 Qh1 Nh4 Qaa6 Qa2 Bb2 Qaa5 Kc1 Be6 Qcd5 Rg4 Qac4 Re4 Qa6 Kg7 Qec4 e2 f6+ Kh8 f8Q+ Bg8 f7 e1Q+ Qd1 Qef2 Qfd8 Kg7 Qde2 Qf5 Qdd5 Qg4 f8Q+ Kh8 Qfe8 Kg7 Qda8 Qab5 Qee6 Qa5 Q8a7+ Kf8 Qed7 Qab5 Qa2 Qa5 Qaa6 Qab5 Qc3 Nc4 Qcd4 N4a3 Q4c4 Qa5 Nfe3 Qh5 Qdd4 Qg4 Kd2 Bh7 Rb1 Qcg5 Kc1 Q5h5 Nf1 Qac5 Qd4d5 Bg8
bQ2n1Q1/N4N2/kb2p3/1qr2NKp/p1RnQ2q/3p1N1N/3PN3/B1N2r2 w - - 0 1 legal: proof: e4 b5 b4 f5 exf5 c5 bxc5 b4 h4 b3 h5 g6 axb3 Na6 b4 Nb8 b5 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Bg7 g5 Bb2 Be2 Bc3 h6 Bg7 Bh5 Bf8 Ra6 gxh5 g6 Qb6 g7 Qd8 Rg6 hxg6 Ke2 a5 Kf3 d5 Kf4 Kd7 c4 Kc7 f6 Kb7 h7 e6 c6+ Kb6 f7 a4 c5+ Ka5 b6 d4 c7 d3 b7 Nf6 g8Q Ne8 c6 Be7 f8N Nf6 Rh4 Qd7 Qe1 Ra7 Nc3 Bb4 Nce2 Ne8 Nh3 Qe7 Bb2 Ka6 Nc1 Nd6 Nd7 Qf8+ Kg5 Ka5 f4 Bc5 f5 Bf2 f6 Qd8 Qe4 Ne8 Ba1 Ka6 Ne5 Bb6 Nf3 Bd7 c8N Qe7 c7 Nc6 b8Q Nd4 Nf2 Bc6 Nh3 Ba8 Nd6 Qd8 c8N Rc7 Nf5 Rc5 Na7 Qd5 Kh6 g5 f7 g4 f8N g3 Ng6 g2 Ngf4 g1Q Nfe2 Qh1 Kg5 Qc6 Qf7 Rf8 h8N Qb5 Qg8 Rf6 Nf7 Rg6+ Kf4 Rg1 Rg4 Rf1 Kg5 Qh2 Qc6 Nc2 Rc4 Nd4 Qd5 Qf2 Qe4 Qh4+
3RQN1Q/r7/6bq/p2pBr1N/QNN1rQn1/P5QN/p3b3/1bK1b2k w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 b4 e5 b3 a3 g6 Ra2 bxa2 b4 f6 exf6 Kf7 Ke2 Ke6 f7 Ke5 Kd2 Kd5 Ke1+ Kc6 g4 Kc7 f4 Kc6 h4 Bh6 h5 Nf6 f5 Ng8 f6 Bg7 Bd3 Bf8 Bf5 gxf5 g5 Kc7 Nc3 Nc6 Nb1 Ne5 Qd2 Kc6 Qd1 Ng6 hxg6 Qc7 Kf1 Qa5 Ke1 Qd8 Kd2 Kd5 c4+ Ke4 b5 d5 g7 a5 g6 e5 b6 h5 c6 f4 c5 f3 b7 f2 b8N f1B c7 h4 c6 h3 Bb2 h2 Qa4+ Bc4 Kc1 Ra7 Nh3 Kf3 Nd2+ Kg2 Na6 e4 Be5 e3 Nb4 Bb5 Nc4 Nh6 g8N e2 g7 Bf5 c8Q Ng4 c7 Qd6 Qe8 Bb1 c8Q Rh5 Rf1 Be7 f8Q h1B f7 Bh4 Nf6 Rf5 g8Q Be1 Nh5 Qh6+ Rf4 Ba6 Qd6 Kh2 f8N Bhe4 Qcb8 Kh1 Qh8 Rff7 Qdf6 Bg6 Qh4 Rf5 Qg3 Rg5 Rf7 Rf5+ Qf4 Bf2 Rd7 e1R+ Kd2 Re2+ Kc1 Be1 Rd8 Re4 Qd6 Qh7 Qg3 Qg7 Qf6 Qh6+ Qg5 Bb5 Q5f4 Ba6 Nb2 Bf1 Nc4 Be2
B4rb1/5br1/3BkbBQ/2P4B/nrK1N2B/1B3Qqn/2Q4r/n1NB1n2 w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 g5 dxc5 e5 f4 Qb6 b4 Qg6 h4 Qf6 Rh3 Qd8 Rf3 Rh6 Raa3 Rh7 Rf2 Rh6 Rg3 Rh8 fxe5 Ne7 Rf4 gxf4 g5 Ng8 Rg4 hxg4 Kd2 Ke7 Kc3 a5 e4 f5 g6 d5 h5 g3 g7 f3 c6 f2 e6 f4 b6 a4 b5 g2 c7 d4+ Kc4 d3 b7 a3 b6 a2 e5 a1R h6 d2 h7 f3 Nc3 Bd7 c8B Be8 Ne4 R8a3 Be2 Na6 b8B f1N b7 Nf6 g8B f2 c3 Ra5 Qc2 d1B Bg5 Qd6 Bh4 Bf7 Bd7 Nb4 Bc6 R1a4 Bc7 Rd5 b8Q Rd3 Ba8 Bg7 Qb7 Rg3 Bh5 Rg6 Ne2 g1N Nc1 Nh3 Qd5 Be2+ Qdd3 Bd1 Qf3 Rg5 Bg6 Nfd5 Bb8 Bf6 Bc7 Ke8 e7 Kd7 e8B+ Ke6 Bh5 Rg7 Bg6 Qb6 Bd6 Qe3 Bh5 Qg5 Bb5 Qg3 Bbc6 Ra1 Ba4 Rb1 Bb3 Na6 Bg6 Nc5 Ba4 Nb3 Bh5 Na1 Bb3 Kd7 e6+ Kd8 e7+ Kd7 e8B+ Ke6 Kc5 Be2 c4 Nc3 Kb4 Rb2 c5+ Bc4 Bg6 Ra2 Bh5 Ra3 Bba4 Ba2 Bg6 Rb3+ Kc4 Rb4+ Kd3 Ng1 Beb5 Nd2 Ne2 f1R Ba6 Be7 B4b5 Na4 Bc4+ Kd7 Qe3 Be6 Bf6 Bb1 Nc1 Rf5 Kd4 Rb6 Be2 Nf1 Bd1 Bba2 Bae2 Rb4+ Kd3 Beb3 Bc4 Rf8 h8Q Nh3 Qh6 Rf2 Bh4 Rh2 Beh5 Bg5 Qf3 Bf6 Ba6 Bg8 B6b7 Baf7 Bd5 Rbb8 Bb3 Nc3 Ba4+ Ke6 Kc4 Rb6 Bb3 Na4 Nf2 Rbb8 Ne4 Rb4+
1BB1q3/1r3p1k/K2bB3/Nb1n1p1r/P3N2r/bnQNQ2N/N3n3/N3N3 w - - 0 1 legal: proof: f4 h5 b4 e5 fxe5 a5 bxa5 g6 c4 Rh7 h4 Bb4 a4 Ba3 g4 Bf8 Rh3 Rh8 Rf3 Bb4 Rf5 Bf8 g5 d5 cxd5 gxf5 Ra3 Qf6 Rg3 Qd8 Rg4 hxg4 d4 b5 Kd2 c5 Kd3 b4 Kc4 b3 Kb5 b2 e4 c4 g6 c3 h5 g3 h6 c2 h7 g2 d6 Bb7 d5 Na6 e6 Nf6 e5 Rb8 e7 Nc5 g7 Ng4 g8N Bg7 a6 Nb3 a7 Nd2 a8N Bf6 Nb6 Nc4 Nc3 b1N Nf3 g1B Ne1 Qc7 Qf3 Nge3 Na2 Na5 Nc4 Qc8 Nd2 Bh4 Bc4 Nc6 Nb3 Nd1 Na1 Nb2 Qc3 Ba7 Bf4 Kd7 e8B+ Kd8 d7 c1R e6 Ne7 Nf6 Nc6 Ne4 Ke7 d8N Kf8 d6 Bg3 d7 Ne7 Nc6 Nd1 d8N Nd5 Ne5 Kg7 e7 Nd2 Ndc6 Bc5 Bd7 Nb3 e8Q Ba3 Na5 Rb1 Qe7 Qe8 N5d3+ Kg6 Bd6 Bc6+ Ka6 Rb7 Bb8 Bgd6 Bc8 Rb2 Qee5 Rh2 Qed4 Rh4 Qe3 Nf4 B4e6 Ne2 Qb4 Ndc3 Qbc5 Nd5 Qc3 Rf8 h8N+ Kh7 Ng6 Rg8 Ngf4 Rg5 Nh3 Rgh5 Qg5 Bd7 Qe3 Bb5+
R4K2/1b3Q1n/4q1Nn/2Rn1rNR/1p3RRr/1nQq1Q1R/P1R2p1b/5k2 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 g5 bxa5 Ke7 c4 Ke8 Bh3 Be7 Ba3 Bf8 Bc5 Ne7 Be3 Ng8 Bf4 gxf4 g5 d5 Bg4 hxg4 cxd5 Ba3 Nh3 Bd6 Ng1 Bf8 Kf2 Ke7 d4 b5 e4 f5 h4 c5 e6 Kd6 e7 f3 Kg3 c4 Kf4 g3 e8Q g2 h5 f2 h6 f1Q+ Nf3 g1N g6 c3 h7 b4 g7 c2 a6 c1N a7 Qa5 Kg5 f4 Kg6 Bg4 Kf7 Bd7 e5+ Kc7 d6+ Kb6 e6 Kb5 e7 Kc4 d5 Qa4 Ne5+ Kb5 Rh5 f3 Nd2 f2 Ndf3 Qb3 Ng5 Qe2 Ng6 Kc4 Qc8+ Nc6 e8Q Qed3 Qf3 Nf6 g8R Nge2 Qc7 Rc8 a8R Ng3 Qe7 Bg4 d7 Nf5 d8R Bh3 d6 Bg2 d7 Nh6+ Ke6 Bh1 Qf7 Bd6 Rdf8 Bh2 d8R Rb8 Rc8 Rb5 Rb1 Rf5 Rb2 Bg2 Qcg3 Kd4+ Kd6 Ne7 Rc5 Ned5 Rbc2 Qbc4 Rg7 Nb3 Rh3 Nc3 Ke7 Qe6+ Kd8 Ncd5 Rh5 Rg8 h8R Bh1 Rhh7 Rh8 Rh3 Nhg4 R7h5 Nh6 Qd1 Bf3 Qa1+ Ke3 Qc3 Nd2 Rgg8 Ke2 Rg7 Be4 Qf3+ Kf1 Rgg8 Nb3 Rg7 Qea6 Rgg8 Nb6+ Ke7 Bb7 Rfe8 Nbd5+ Kf8 Qc6 Re4 Qe6 Rf4 Nhg4 R5h4 Rh5 Rh8 Nh6 Rhg4 Rh4 Rh7 Nhg8 Rh5 Nh6 Qc7 Qd4 Qh7 Qd3 Qf7 Nh7+
3nQRrb/3Q4/Q1Bq1Bn1/2ppQ3/1P1Rb3/4qp1q/3QrQB1/1k3KQ1 w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 fxe5 c6 g4 Be7 gxh5 Qb6 d4 Qd8 d5 Bf8 c4 Na6 c5 Qg5 Nc3 Qf6 d6 Qd8 Nd5 Nb8 Bh3 Qc7 Nf3 Qd8 Nd4 cxd5 c6 Ne7 c7 Ng8 Nc6 dxc6 Bg2 Be7 Bf1 Bf8 b4 Kd7 h4 Ke6 e4 a5 b6 g5 h6 f5 h5 a4 d7 a3 b7 a2 h7 c5 h6 g4 Qd2 g3 Bg2 f4 Rh4 f3 Kf1 Bd6 Bb2 Qf6 d8Q Na6 b8Q Ne7 Rf4 Bd7 c8Q Re8 h8Q Ng6 h7 Nc7 Rd1 a1Q Qa6 Qf5 Qh4 Qh3 Qbb5 Rg8 Qg7 Rae8 h8Q Qc1 Qdd3 Qe3 Rf8 Qf4 Qbb7 Bb5 Qe2 Bd3 Ba1 Bc2 Rd4 Bb1 Qd2 Qe3 Qaa7 Be7 Q8h5 Bf6 Qa3 Qf4 Qae3 Bc2 Qg1 Bb1 Qgh7 Bh8 Qa8 Qf6 Qaa2 Qe7 Qa6+ Qd6 Bc3 Nb5 Q5g5 Na7 Q5e3 Re7 Qef2 Nc6 Q4h5 Nd8 Qg7 Kd7 e6+ Kc7 e5 Be4 Qgh6 Re8 e7 Kd7 Qa7+ Kc6 e6 Kb5 Qc7 Ka4 Qd7+ Kb3 Qe5 Nc6 Bb2 Ka2 Ba1+ Kb1 Bc3 Rc8 e8B Nd8 e7 Rc6 Qc8 Ra6 Bc6 Ra2 e8Q Rb2 Qcd7 Ra2 Qdg5 Re2 Qd2 Nb7 Qfe3 Bc2 Qeh5 Bb3 Ba4 Qf6 Rc4 Nd8 Qh1 Nf4 Q5g5 Qe7 Qa6 Ng6 Bf6 Qd6 Rd4 Bc2 Bc6 Be4 Qge5 Rf2+ Ke1 Qe7 Bf1 g2 Qhh2 g1Q Qh1 Qgg2 Qg1 Qg5 Bg2 Re2+ Kf1 Qd6 Qef2 Qe3
2Q2Knk/6N1/qRrqn2n/4q1Qr/1N4P1/bQ4q1/QQ1N3R/R2bQ1b1 w - - 0 1 illegal: No possible last move
bk2rNR1/2NnPQRR/1b2R3/r1r2K2/3n2nQ/2q2R2/3q3Q/N2Rqr2 w - - 0 1 illegal: No possible last move
B5kB/K2r3b/3Qr1Nn/n1bP3q/2bQ1Nb1/4r1B1/2BBB1Nr/4n2Q w - - 0 1 illegal: No possible last move
Q6b/1N1kn2N/Q1bqr3/2RrQ1P1/2n1R3/K1Q1n1p1/1r3Qnp/R1N2Q2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 g4 exf5 Qd7 Ra2 Qd6 Ra1 Qd8 d3 h6 Bf4 h5 h3 Bg7 Bh2 Bf8 Be2 g3 Bf3 gxh2 g4 Rh7 g5 Rh8 Bg4 hxg4 Kd2 c5 Kc2 a5 Kb3 e5 f4 a4+ Ka3 e4 b4 e3 d6 c4 b6 c3 b7 e2 d7+ Ke7 f6+ Ke6 h4 e1R f5+ Kd6 b5 c2 h5 c1N f7 g3 d4 Re7 d5 Rh6 f6 Kc7 d6+ Kb6 Nc3 Nc6 b8Q+ Kc5 b6 Re3 b7 Re2 Ne4+ Kb6 Qf1 Rb2 Ne2 Rh7 h6 Rb1 Nc5 Ra6 Qa8 Na5 b8Q+ Bb7 Qc8 Rh8 h7 Bg7 f8Q Ne7 f7 Nd3 Nc1 Bc6 Nb7 Nf4 Qcb8 Qc7 d8Q Rb2 d7 Ng2 Qdc8 Rg8 d8Q Bh8 Qd2 Rg6 Qdd3 Rd6 Qc3 Rd5 Qf2+ Kb5 Re1 Qd8 Qbe5 Qd6+ Nc5 Kb6 Qce6 Kc7 Re4 Rb4 Nb7 Nc4+ Ka2 a3 Qeh6 Bg7 h8R Kd7 Qhf6 Rab6 Qa6 R4b5 Qfa8 Rb4 Rc8 Bh8 Qf1 Rb3 Qb4 Re3 Q6f2 Re2+ Kb3 Rbb5 Ka4 a2 Qbc5 Reb2 Qc3 Re5 Q5d4 Re6 Qe5 Bd5 Rc5 Bc6 Rb1 a1N f8N+ Kc7 Nh7 Nc2 Ra1 Nc2e3 Qfd3 Kd7 Qdf1 Rd2 Nd8 Rd5 Nb7 Nd2 Ka3 Rb3+ Ka2 Rb2+ Ka3 Ndc4+
kqR3QN/3RQb2/3Qr2n/b4Q2/2Qn4/Rp2pp1P/1nnr3K/N1Q1N3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 a4 f5 a3 bxa3 Qg5 a4 Qf6 a5 Qd8 e4 Qd7 Ba3 Qa4 Bb5+ Bd7 Bd6 Kd8 Bc6 Bc8 Bd7 Qb5 Be6 Ke8 Bc5 Qa4 Be3 Qd7 Bf4 exf4 e5 Qd8 Bd7+ Ke7 e6 Kd6 e7 Qe8 Qc2 Qd8 Be6 fxe6 Qd1 Kd7 Kf1 c5 Kg2 Kc7 e8R g5 d4 b5 a4 Kb7 f6 b4 f7 e5 h6 c4 d6 b3 d5 e4 a6+ Ka7 h3 c3 a5 e3 h7 g4 d7 g3 d6 c2 Nf3 c1N Ra3 Qh4 d8Q Qh6 d7 Nc6 Qe7 Ne5 Ne1 Na2 Qc1 Nc4 d8Q+ Bb7+ Kg1 f3 Qdd6 g2 Rc8 Nb4 Kh2 Nc2 Rg1 Bg7 f8Q Nb2 Qf5 Bc3 Rf1 g1N Rf2 Nb4 Rd2 Nc2 Rd4 Rb8 Rd3 Ka8 a7 Qf8 Rd5 Nh6 Rd3 Rg8 h8N Qd8 Rd4 Qc7 Rd5 Bc6 Rd3 Kb7 a6+ Kb6 Qde5 Rd8 a8Q Nb4 Ra2 Be8 Qd5 Ka7 Na3 Ne2 Qc4 Rb6 Nac2 Rbd6 Na1 Nc2 Rd1 Ba5 Ra3 R8d7 Qed5 Qb8 Qg8 Bf7 Rd3 Kb6 a7 Rd8 a8Q Re6+ Kh1 Rd7 Qac6+ Ka7 Qc7+ Ka8 Kh2 Rd5 Qcg3 Rc5 Rd7 Rd5 Qgc7 Rd2 Qcd6 Ned4+
k3KN2/pbb2R1r/1p6/QRp1N3/b3N1NR/PnQ1qr1R/r2n1N2/1R6 w - - 0 1 legal: proof: e4 c5 g4 h5 gxh5 f5 exf5 d6 b4 Kf7 bxc5 Be6 c6 Bc8 c7 Ke8 c4 Nd7 d4 Rh6 d5 Nb8 c5 Rh8 c6 Be6 Be3 Bc8 Bc5 dxc5 d6 e6 Bc4 Nd7 Bb3 Nb8 Bd5 exd5 Ke2 g5 Kd3 d4 Ke4 d3 Ke5 d2 h4 g4 f4 g3 h6 g2 h7 Nd7+ Ke6 Bh6 a3 Ne5+ d7+ Kf8 h5 Qh4 f6 Nd3 f5 Qh3 f7 Ne5 Nf3 g1R Qb3 d1B Nc3 Ng4 Nh2 Be3 h6 Bc2 Nd1 Qh5 Nf2 Qg5 Rc1 N4f6 Nhg4 Ne4 Rh3 Nd2 Qc3 Re1 Qa5 Re2 Rb1 Ba4 Kd6 Ne7 d8N Be6 c8N Bc4 Kd7 Ba6 Nd6 Nc4 Nde4 Rb8 Rc1 Ra2 Rb1 Bc2 c7 Bf4 c8R Nc6 Qa4 Bc7 Qa5 Ra8 Rb8 Qf4 Rd3 Ba4 Rh3 Rg8 h8Q Qe3 h7 Nd2 Qd4 Rh8 Qdc3 Nd4+ Nc6+ Bd8 Kc8 Bc7 Nce5 Ke7+ f8R N4b3 f6+ Ke6 f7 Kd5 Ng6 Bh2 Kd8 Kc6 Ke7 Bf4 Kd8 Bc7+ Ke7 Rg8 h8R Rg7 R8h4 Rh7 Rbd8 Rb8 Rd4 b6 Rb4 Kb7 Rb5 Ka8 N6e5 Rc8 Kd7 Bb7 Ke7 Bd8+ Kd7 Rc6 Ke8 Bc7 Rg8 Rhh6 f8N Rcf6 Rg7 Rh7 Rf7 Rf3
1r1N4/Qn6/1n3RK1/R2Q2R1/R2n1NqN/1r1NPqk1/3Q1pn1/1b1N1q2 w - - 0 1 legal: proof: b4 a5 f4 e5 fxe5 f5 a4 d5 c4 h5 cxd5 b5 g3 f4 Bh3 f3 Bg4 hxg4 Ba3 Bd6 axb5 Bc5 b6 Be7 b5 Bg5 Bb4 Bf4 gxf4 axb4 Kf2 Kd7 Ke3 g5 Ke4 c5 Kf5 b3 h4 g3 d4 b2 e3 c4 b7 g4 e6+ Kd6 b6 g2 h5 g3 h6 c3 h7 c2 Ne2 c1Q Ra5 g1N Rh5 g2 Rg5 f2 Kg6 Qc4 e7 Qc3 e8R Qdc7 f5 Be6 f6 Nh3 f7 g1Q f8R Q3c4 Nbc3 b1N Nf4 Qg4 Qd2 Nh6 Rf6 Qf1 Nd1 Na6 b8N Qb7 Nc6 Na3 Nb4 Nf5 Nbd3 Nc5 Rc8 Ra7 Ra8 Rb8 h8N Nc4 Ra4 Qc6 b7 Nb6 Ra5 Kd7 d6 Qcf3 d5 Nd4 Ra4 Ra5 Ra6 Rb5 R6a5 Rc8 b8Q Rb3 Qa7+ Nb7 Qc2 Rb8 Qd2 Ke8 d7+ Ke7 d8N Bf5+ Kg7 Kd7 d6 Be4 Nhg6 Bf5 Nh5 Nf4 Nh4 Ng2 Nhf4 Bh7 Nde6 Kc6 d7 Be4 d8Q Bf5 Qg8 Kd6 Ndc5 Ke5 Ncd3+ Ke4 Nd8 Qfg3 Nhg6 Kf3 Qd5+ Be4 Kh7 Q3h3+ Kg7 Kg3 Nh4 Bg6 N3b2 Bb1 Nbd3 Kh2 Kf7 Qhf3 Kg6 Kg3
N1Q4n/k1qq2pB/B2N2B1/1qNrbP2/1n4Q1/KN4nN/1B5Q/r4n2 w - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 h5 gxh5 b5 a4 Be6 axb5 a4 b3 a3 b6 Bg4 Bh3 Bd7 Bf1 Ba4 bxa4 Ra5 Bb2 Ra6 Bc1 Ra8 e4 e5 h4 f6 d4 Ra7 d6 Ra6 d5 Ra8 Ra2 Nc6 Rd2 Nb8 Rd4 exd4 e5 f5 Rh3 Nf6 Re3 Ng8 Re4 fxe4 Kd2 Kd7 Kc2 Kc8 Kb3 Kb7 f4 c5 a5 e3 d7 a2 d6 a1Q h6 e2 a6+ Kc6 a7 Kb7 e6 e1N h5 d3 h7 d2 h6 Nf6 e7 Nd5 e8B Nf3 Bb2 Qf6 d8N+ Kc8 Nf7 Kb7 d7 Ne5 Qg4 d1N Nd2 Bd6 Nh3 Qb1 Ka3 Nf2 Nb3 Qd8 f5 Rg8 h8Q Ne4 h7 Ne3 Bd3 Ng3 Ba6+ Kc6 b7 Kb6 Bc1 Qc7 d8N Nbc6 b8N Nb4 Nb7 c4 N7c5 Ng6 Bb2 Be5 Nd6 c3 Bf7 c2 Nbd7+ Kc6 Be8 c1Q Nb6+ Qd7 Bf7 Rad8 Na8 Nef1 Be8 Rf8 Qg8 Nh8 Bg6 Qd3 Q8c4 Qf4 Qc2 Qb5 Qh2 Nf7 h8Q Rfe8 Nc7 Kb6 a8B Ka7 Bd5 Rf8 Qg8 Nh8 Na8 Rfe8 Qf8 Qfc4 Bg8 Qc2 Ne6 Qcc7 Nec5 Re6 B8h7 Rf6 Ndb7 Rd6 Qe8 Rd5 Nd6 Rb8 Qf8 Rb6 Qc8 Rc6 Ncb7 Rc1 N7c5 Ra1+
QR1Bb2r/3B2QB/KQ2BRb1/6nq/RbqR4/1r1nBnrP/8/4r2k w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 g5 axb5 Be7 c4 Bf8 Nh3 Qe7 Na3 Qd8 Nc2 Bg7 Ne3 Bf8 Nf4 gxf4 g5 d5 Ng4 hxg4 cxd5 Rh5 Rg1 Rh4 Rh1 Rh8 e4 Kd7 Ke2 f5 Kd3 a5 Kc4 c5 b4 g3 d4 f3 e6+ Kd6 g6 g2 e7 g1R e8R a4 b6 a3 Kb5 c4 b7 f4 g7 f2 h3 c3 Bc4 f1Q Qg4 a2 Be3 Qg5 Rd8+ Nd7 b8R Nh6 g8B f3 Bh7 Qh5 Qg7 c2 Rh2 c1N Rf2 Ra3 e5+ Kc7 e6 Kd6 e7 Nd3 e8B Nf7 Bb3 Rg3 Bc4 Rc3 Ka5 Qe2 b5 Ng5 b6 Rb3 b7 Be7 Rff1 f2 Ka6 Bf8 Beg6 Qc2 Bf5 Qc1 Bb5 Qc4 Be6 Be7 Rfd1 f1B Rf8 N7e5 Rf6 Bd7 Rd2 Qc7 Bc6 Be8 Bcd7 Nef3 Rdd1 Qc8 Rd2 Kc7 Rdd1 Bb4 d6+ Kd8 d5 Bg6 Bb5 Be2 d7 Kc7 d8B+ Kd6 Bc6 Ke5 Bcd7 Ke4 d6 Qc3 Rc8 Bf1 b8Q Qc6+ Qb6 Qc4+ Bb5 Bg2 d7 Bh1 Ra8 Bg2 Rab1 Bh1 Rb2 a1R+ Ra2 Bg2 Rb8 Bf1 Rd2 Re1 Ra4 Nh4 Bf4 Kf3 Rd1 Kg2 Be3 Kh1 Rd2 Nf2 Rd4 Bfd3 Be7 Bf1 d8Q Nhf3 Qdf8 Bfd3 Bd8 Bc2 Qe8 Nd3 Qec6 Be8 Qa8 Qc7 Bbd7 Qc4+ Ka7 Nc1 Kb7 Bcg6 Ka7 Nd3 Kb7 Qc3 Ka6 Qc4+
1Q1bbqk1/bPQ2r2/Bn5Q/2QB2B1/K1N5/n1r3B1/r1N2p2/1B1n1q1N w - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 h4 g5 b4 e5 f4 d4 Ra4 Bb7 c3 Bc5 cxd4 Rh6 d5 Bf8 Ra3 Rh8 Rf3 Ba6 Rh2 Bc8 Rg2 Nd7 fxe5 Nb8 Rf4 gxf4 g5 Nh6 Rg3 Ng8 Rg4 hxg4 e4 f5 d4 Kf7 Kd2 c5 Kc3 a5 Kb3 c4+ Ka4 g3 g6+ Kg7 d6 g2 d5 c3 e6 f3 h5 f2 b6 f4 b5 c2 h6+ Kf6 e5+ Kg5 h7 Kh6 b7 Kg7 b6 f3 d7 Qh4+ Qd4 Qh1 d8Q Nc6 b8B Na7 e7 Bg4 e8B Nb5 d6 Qh6 b7 Na3 d7 Bh5 e6+ Nf6 Qc7 Be7 d8Q Rf8 Ne2 g1B Bg5 c1R Ng3 Rc3 Ba6 f1N Qdc5 Rf7 Nh1 Ne3 Beb5 Nd7 Bd3 Bf6 e7 Nd1 e8N+ Kh8 Bc2 Qf8 Nd6 Be7 Qe8 Bd8 Nc4 Be3 Qe6 f2 Qh3 Bg4 Qh6 Bh5 Qe7 Bb6 Qcc5 Ba7 Bg3 Rc8 Qed6 Rc6 Qf4 Re6 Qb8 Re2 Qbc7 Rd2 Bd3 Ra2 Bf1 Nc2+ Nba3 Ra1 Q7d6 Rb3 Bh2 Re7 Bd3 Rc3 Kb5 a4 Qdb6 Nb2 Qa5 Bf3 Qh3 Bh5 Qg3 Kg7 Qb8 Kh8 Qac7 Rg7 Nb1 a3 Bg3 a2 Nba3 Re7 Ne3 Kg7 Nac4 Na3+ Ka5 Re1 Be4 a1Q Kb4 Qc1 Ka5 Re2 Bb1 Qf1 Kb4 Nd1 Ka4 Ra2 Nc2 Qg8 h8Q+ Kf8 g7+ Kf7 Q5e5 Qf8 Qh6 Kg8 Qec5 Be8 Qe6+ Kh7 g8B+ Kh8 Qec6 Kg7 Bd5 Rf7 Qf6+ Kg8 Qh6 Nb6+
2RR1n1n/1pNQbk2/R3N1RQ/1Q1P1N1b/7K/bQr1q1R1/1nb5/2rr4 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 Kd7 exf5 Ke8 f6 Bg4 Qf3 Be6 Qd1 Bc8 g4 Bh6 f4 Bf8 Bh3 Nh6 Ba3 Ng8 f5 h6 Bd6 h5 Bf4 gxf4 g5 Bd7 Bg4 hxg4 Qc1 Be6 Qd1 Bc8 Kf2 c5 a4 e5 d4 c4 h4 c3 h5 f3 Kg3 e4 h6 e3 f7+ Ke7 d6+ Kd7 a6 e2 f6 Ke6 h7 e1N d5+ Ke5 a5 c2 a7 c1R a6 f2 g6 f1B d7 Kf5 g7 Kg6 Nc3 Ba3 f8Q Ng2 f7 Ne3 Rh6+ Kf5 Qd6 Bd3 f8N Qe7 d8R Nd7 Ne6 Bc2 Nb5 Nf8 Nbc7 Nc4 Rg6 Nh6 g8R Nf7 Ne2 Nb2 Qd7 Qg5 R8g7 Qe3+ Kh4 g3 N2d4+ Ke5 Qf3 g2 Nf5 g1B Rg8 Rb8 a8R Bh2 Rg3 Kf6 a7 Be7 Ra6 Rd1 R3g4 Bhd6 Rg3 Ba3 Qe2 Rc1 Qeb5 Rd1 R8g4 Rg8 Qb3 Nh8 Rg5 Kf7 Qdb5 Beb4 Rg6 Bd7 Rc8 Be8 Rd8 Rc8 Rb8 Bc6 a8Q Be8 Qa7 Bd6 Qab6 Bdc5 Qd6 Bcb4 Rh6 Rg5 Qdd7+ Be7 Rg6 Rc1 Na8 Rc3 Rbc8 Rd3 Nac7 Rdd1 Rg8 Kf6 Rg7 Bh5 Rg6+ Kf7 Rc6 Rg4+ Kh3 Rc4 Ra6 Qd2 Rh6 Nhg6 h8Q Qe3 Qf6+ Kg8 Qg5 Kf7 Qh4 Nh8 Rg6 Be2 Qh6 Rc3 Qdc6 Beb4 Kh4 Bh5 Qd7+ Be7+
1q1Q2N1/2b1rR2/3n1KQb/RP1Qp3/b5rQ/k2n2p1/3NR2r/q1R3NQ w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bb7 b3 Bc8 Bh3 Bh6 Bb2 Bf8 f5 h6 Be5 h5 Bf4 gxf4 g5 Bg7 Bg4 hxg4 Kf1 Bh6 Ke1 Bf8 Ke2 Kd7 Kd3 Kd6 Kd4 a5 h4 e6 b6 g3 h5 a4 f7 c6 g6 f3 h6 a3 f6 f2 h7 f1Q b4 a2 b7 Bg7 f8R Ra4 Rf7 Bf8 g7 Nd7 b8R Nh6 g8N c5+ Ke4 e5 d4 c4 Nd2 c3 b5 c2 Rh2 c1B Re2 Qe8 Ra8 Nf5 Ra5 Qd8 Rb1 a1R Qe1 Ba3 Rc1 Bh6 Qd1 Bb4 Qb3 Qe8 Qf3 Bc5 Qh1 Bb6 Qh4 Bc7 Qh1 Ne3 Qh4 Nc4 Qh1 Qd1 Kf5 Nc5+ Kg6 Be6 Qh4 Qe7 Qh1 Kd7 d6 Nd3 d5 R1a3 Rc3 Qa1 Rc1 Kc8 d7+ Kb7 d8Q Kb6 d6 Kc5 d7 Kb4 Qe8 Qf8 d8Q Nd6 Qec6 Bb3 Qcd5 Bd1 Qe8 Ra2 Qee6 Qb8 Qg4+ Bf4 Kg7 Bb3 Qg6 Ka3 Rf8 Qa7 f7 Q1d4 Ne4 Qb4 Ree1 Qb8 Kf6 Rh2 Nd2 Qd4 Re2 Bd1 Rd8 Bb3 f8Q Qa1 Rd7 Bd1 Qd8 Be3 Ne7 Re8 h8Q Bb3 Qh4 Bh6 Ng8 Bc2 Rf7 Re7 Ra6 Bd1 Rb6 Re4 Ra6+ Ba4 Ra5 Rg4
1nRRR1n1/k4KB1/2BP4/2r4q/nb3R2/1B2B1Qn/1BBbb3/b1nB2r1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 g5 axb5 Be7 c4 Bf8 Nh3 Qe7 Na3 Qd8 Nc2 Bg7 Ne3 Bf8 Nf4 gxf4 g5 d5 Ng4 hxg4 cxd5 Rh5 Rg1 Rh4 Rh1 Rh8 Kf2 Kd7 e4 f5 h4 a5 b4 c5 d4 Kc7 b6+ Kb7 b5 c4 e6 f3 Kg3 a4 Kf4 g3 Ke5 f4 d6 c3 d7 c2 h5 f2 e7 f3 Ke6 g2 e8B g1B h6 a3 g6 a2 g7 Bb4 d5 Rh7 e5 Bh2 d6 Bd2 Kf7 Ra5 e6 Bhf4 e7 Be1 Be2 f1N Qd3 f2 Bb2 c1N Bd1 Bed2 Qg3 Nb3 Rh4 Qc7 d8R Bg4 Rc1 a1B Bd7 Nc5 e8B Rh8 h7 Nh2 Bc2 Ka8 b7+ Ka7 Bd1 Qc6 Bf5 f1N Bfc2 Qf3 Bc6 Bb4 Re8 Nd2 b6+ Ka6 Rd8 Ndb3 Re8 Na4 Rd8 Nf6 g8B Bfd2 Re8 Qf5 Rd8 Be2 Rf4 Rc5 Re8 Nbd7 b8B Nf3 b7 Ng1 Ba7 Nh3 b8R Qg5 Rbd8 Nb8 Ke7 Qh4 Be6 Qh6 Kf7 Rg8 h8B Rg4 Bg7 Ng8 Bed5 Rg6 Bb6 Qh5 Ba7 Ra5 Be3 Rc5 Rb1 Nc1 Bdb3 Nd3 Rc1 Kb6 Bb1 Ka7 Rc3 Nc1 Bb1c2 Rg4+ Bg6 Qh8 Ba8 Ba5 Qg2 Bb4 Bgc2 Qh4 Qh2 Rg1 Qg3 Qh6 Rd4 Rb5 Rcc8 Qg5 Bc6 Rc5 Rf4 Qh5+
R2B1R2/1B1pqB1r/Bb3Bb1/3RP3/qQn2q2/rB2b3/1n2k2K/1r4RB w - - 0 1 illegal: No possible last move
2k5/B1p2b2/1RQB2Rr/2bn2br/1P5R/1B1R3n/3p1bnq/R2K1RBB w - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 h5 axb5 h4 d6 h3 gxh3 Bf5 h4 Bh3 h5 Bc8 e4 Na6 d5 Nb8 Nf3 f6 Nd4 exd4 e5 f5 Nc3 Nc6 Ne4 fxe4 Qd3 Nb8 Qf3 Qg5 Qd1 Qd8 b4 Kd7 f4 a5 h4 g5 f5 d3 e6+ Ke8 f6 g4 h6 e3 h7 a4 h5 g3 b6 e2 h6 a3 e7 Kd7 f7 a2 b7 g2 Be3 g1B Ba7 Nc6 b8R Nd4 Qc2 Nf6 Bg2 Ng8 Rb6 Bb7 e8B+ Kc8 Ba4 Qf6 Bb3 Ba6 Qc6 Ne7 Rh4 Be3 Bh1 Bg5 Rf4 Ne6 Rf1 Nf4 d7+ Kd8 Kd2 e1N Kc1 d2+ Kd1 Bg7 f8B Neg2 Bc2 Nh3 Bb3 Nc8 Bd6 Bc4 Ra6 Qf4 Rb6 Rg8 h8R Ne7 h7 Qh2 Rg1 Bf8 Rf1 Rg6 Rg8 Bd3 h8B Rh6 Bd4 Bg6 Bg1 Bf7 Rg7 Ng8 Rg6 Nf6 Bg3 Bc5 Bf4 Ke7 d8R Rc8 Rd6 Rch8 Re6+ Kd8 d6 Bf2 d7 Nd5 Re4 Rh5 Bd6 R8h6 Rh4 Bc5 Rb1 a1B Rc1 Bad4 Ra1 Bde3 Be5 Ke7 d8R Bf2 Bf4 Nf6 Rd4 Nd5 Rd3 Kd8 Bd6 Kc8
8/Nnr1Rpq1/2R2P1r/N3p3/1rpRR2K/k1N5/1N2NBN1/qbn2b1R w - - 0 1 legal: proof: d4 b5 a4 d5 axb5 g6 c4 Bd7 cxd5 Bc8 d6 Bg7 d5 Bf6 e3 Bd4 exd4 h6 f4 g5 g4 Bb7 f5 Ba6 Bh3 Bc8 Qd2 h5 Qf4 gxf4 g5 Na6 Bg4 hxg4 Ke2 Nb8 Kf1 Bd7 Ke1 Bc8 Kf2 Kd7 h4 e5 b4 a5 b6 c5 h5 f3 Kg3 c4 b7 f2 h6 f1B f6 a4 g6 a3 g7 a2 h7 Be2 b5 Qc7 b6 Qd8 Kh4 g3 Nc3 g2 Be3 Bh5 Bf2 Na6 b8R Ra7 b7 Nc7 Nge2 g1Q Re1 Ne7 g8R a1R Re8 Rf8 h8N Ne6 Ng6 R7a3 Ngf4 Nc6 Nd3 Qg8 Nb2 Nc5 Ra8 Rd1 Ra6 Na5 Rc6 Nab3 b8R Qa5 Re7+ Kd8 d7 Nb7 Ra8 Rb1 Raa6 Qg6 Rd6 Kc7 d8N+ Bd7 Nc6 Rg8 Na7 Qg7 Rab6 Bg6 Rdc6+ Kd8 d6 Bh3 d7 Bf1 d5 Nc1 Rd6 Kc7 d8N+ Kb8 Rbc6 Bd3 Nbd1 Rb4 Nb2 Bb1 Ne6 Rab3 Rdd7 Qa1 d6 Rc8 N6f4 Rc7 Ng2 Ra3 Ncb5 Rg3 Nbc3 Rg6 Rd8+ Rc8 d7 Ka8 Rce6 Kb8 Rd6 Kc7 Rd4 Kb6 Rde8 Ka5 d8N Rc7 Ndc6+ Kb6 Na5 Kc5 Re6 Rb6 Rc6+ Kb4 Re7 Ka3 Ng3 Rb3 Ree4 Rb4 Nge2 Rh6#
1N6/3KR1Nk/1NRRq3/3N1q2/PR4nr/3b4/1Rqp1QR1/1Q1bbqq1 w - - 0 1 illegal: No possible last move, all moves rejected
KBB3Nr/1BnQ1n1q/1q1B4/q3Q3/3b4/1b2NP2/br1k1N2/B2Nb1Bb w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 e4 f6 g4 Be6 b4 Bf5 d4 Be6 d5 Bc8 Ra3 Kf7 Rd3 Ke8 Rd4 exd4 e5 f5 Rh3 Be7 Re3 Bf8 Re4 fxe4 Kd2 Kf7 d7 Kg6 f3 h5 e6 a5 e7 c5 e8N a4 b6 d3 Ke3 c4 Kd4 e3 b5 d2 b7 h4 b6 e2 d6 e1Q Kd5 a3 Bh3 a2 Nf6 a1B Bb2 c3 Qe2 d1B Qe5 c2 Nc3 Nc6 b8B c1Q b7 Be2 Nd1 Qb6 d8B Qbe3 d7 Qc2 Bb6 Nh6 d8Q Ra2 Bd6 Nb8 Qd7 Na6 b8B Bc4+ Kc6 Qa5 Nd5 Bb3+ Bc3 Qd4 N5e3 Nf7 Bbc5 Rb2 Bb6 Kh7 g6+ Kh6 g7 Qh7 g5+ Kg6 Be6 h3 g8B h2 Nh3 h1B Nhf2 Kh5 g6+ Kh6 Ba3 Bb4 g7 Kg6 Bf5+ Kg5 Bc5 Ba2 Bcd6 Qa7 Bd4 Be1 Bac5 Nh6 Bd5 Nf7 g8N Bb3 Qc7 Be6 Qd7 Ba2 Bde4 Bec4 Bc3 Bcb3 B5d4 Q7c5+ Kb7 Qcb5+ Ka8 Qbb6 Bcb4 Rb1 Bd4c5 Bd4 Bb7 Rb2 Bc3 Qab4 Neg4 Be3 Qc8 Re2 Ba1 Rb2 Nd3 Q4a5 Qce6 Bc1 Bg1 Be3 Qe8 Bd4 Bfc8+ Kh4 Nf4 Kg3 Nd3+ Kg2 Qd8 Kf1 Nge3+ Ke2 N3f2 Kd2 Qd7 Nc7#
1Q1Rn3/1RR1q3/b2r2n1/2P2R2/1bR4N/2r1nNpb/Q1R1nb2/KNNk4 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qd8 f4 h6 g4 Qc7 f6 Qb6 f5 Qd8 Bf4 gxf4 g5 h5 Be2 Bh6 Bf3 Bf8 Bg4 hxg4 Kd2 Kf7 Kc1 d5 h4 e5 c4 a5 b4 e4 Kb2 a4 g6+ Ke8 h5 Kd7 c6+ Kd6 b6 Ke5 g7 d4 f7 f3 b7 Kf4 b5 Ke3 h6 d3 h7 f2 c7 f1B b6 d2 f6 g3 Ra2 a3+ Ka1 Nc6 b8R Nd4 b7 Bch3 c8R Ne2 Qc2 d1N Rc7 Qe7 Nf3 Ra6 Qa4 Rc6 Rc2 a2 Rd8 Re6 b8R Rd6 Rbb7 Nf4 Qa8 Nc3 Qb8 Ng6 Rhh2 Ne2 Rc1 Nh6 g8Q Nf5 Rc2 Ng7 Rh1 Bd7 Rh4 Ne8 Rf4 Bdh3 Rg4 Bg7 f8R Kf2 Qd5 e3 Rh4 Rg8 h8N Bh6 Rf7 Bf8 Rf4 Rg7 Rf5 Rg8 Rh7 Rg7 Rh4 Rh7 f7 Rh5 Nd4+ Ke1 Nb3 Rh7 Qg2 Kd1 Re4 Rh4 Nc1 Rf4 Qf2 Rf3 Ref4 Nd4 Qg2 e2 Qh2 e1B c5 Bf2 Qg2 Ne2 Rfc4 Bh6 f8N Rc3 Ne6 Bd2 Nd4 Bde1 Nf3 Bd2 Kb2 a1N Qh2 Nb3 Qg2 Na5 Ka1 Bde1 Nh4 Bd2 Nf7 Bde1 Ng5 Bd2 Rcf4 Nc4 Ngf3 Ne3 Rc4 Rcd3 Nd4 Bb4 Qd5 Rb3 Qe6 Rc3 Ndf3 Rd4 Qa6 Rd6 Qa2 Ng1 Re4 Ba6 Rc4 Ne2
1Q1b4/RQ1r1b1b/3P2Qp/K2R1Qnr/n1NR4/2R2p2/QQ3r1b/2N1qk2 w - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 fxe5 c5 h4 Qa5 hxg5 Qc7 b6 Qd8 b4 Nc6 c4 Nb8 e3 Nh6 b5 Ng8 Ba3 d5 Bb4 cxb4 c5 Bf5 Be2 Bc8 Bc4 dxc4 g4 Kd7 d4 Ke6 Kd2 Kd5 b7 Ke4 c6 f5 b6 a5 c7 a4 g6 f4 g5 h6 d5 b3 Kc3 f3 e6 a3 g7 b2 d6 a2 Kb4 c3 e7 c2 e8R+ Qe7 g6 c1B Rh5 Bg4 c8R Be6 Ne2 Ra3 Rc3 Bb3 Qd2 Bf7 Rd5 Rb3+ Ka5 Rb4 Na3 b1B Qb2 Nf6 g8Q Rh7 g7 Nbd7 b8Q Nc5 b7 Na4 Nc4 Qe6 Qc7 Be7 b8Q Bd8 Qf8 Qe5 g8Q Rb5+ Ka6 Rg7 Qcb7 Nh7 Re7 Bd2 Nc1 Ng5 Rc7 Be1 Rcc5 Bg3 Rd4+ Kf5 e4+ Kf4 Rcd5 Bh2 Ra3 Kg3 Rc3 Qe8 e5 Bh7 e6 Rc5 e7 Rb5 Qb4 Kf2 Qb3 Kf1 Qb2 Bfg6 Qf5 Bf7 Qbc2 Rb2 Qb1 Rf2 Q1b2 Qf8 e8Q Qe7 Kb5 Qe1 Qee6 Rd2 Qeg6 Rf2 Rb1 a1R Ka6 Ra2 Ra1 Nb6+ Kb5 Ra5+ Kb4 Rc5 Ra8 Na4 Ra7 Rc7 Ka5 Rd7+ Q8c7 Bf6 Qgb8 Bd8 Qa2 Rg8 Qbb2 Re8 Q8b7 Re4 Qcb6 Rh4 Q6c7 Rh5 Qb8 Bf6 Qcb7 Bd8+
1kbNNN2/1n2bp2/1nBpQPBq/3Qrp2/2b1n3/KNBB3q/8/6NN w - - 0 1 legal: proof: b4 c5 d4 g5 dxc5 b5 f4 Bh6 a4 Kf8 axb5 Bb7 h4 Ke8 f5 Bc8 Ra6 Bg7 Rd6 Bf8 f6 e6 Rd5 Qc7 Re5 Qd8 Rf5 exf5 g4 a6 Rh3 Qe7 Rf3 Nh6 Rf4 gxf4 g5 Qd8 g6 Ng8 Bh3 a5 Nd2 Ra6 Nb1 Rd6 Bf1 Rd3 Nd2 Rg3 Nb1 Rg5 hxg5 Bh6 Bg2 Bg7 Bf1 Bf8 Kd2 h5 Kc3 h4 Kb2 f3 e4 d6 c4 Kd7 c6+ Kc7 c5 a4 g7 f2 g6 h3 e5 h2 e6 h1N e7 Bb7 e8N+ Kc8 c7 Na6 b6 Rh7 b5 Rh4 Ka3 Rg4 Bb2 Rg2 Bc3 Nb4 Nd2 Rg5 Bd3 f1B Nb3 Bbg2 b7+ Kd7 b8N+ Kc8 b6 Bf3 Nc6 Ne7 g8N Rg4 g7 Na6 Nh6 Re4 g8B Re5 Ng4 Ng3 Nf2 Ne4 Bh7 Nd5 Nh1 Be7 Bg6 Kb7 c8B+ Ka8 Ncd4 Kb8 b7 Nb6 c6 Nac5 Ne6 B3g2 Nf8 Bf3 Kb4 a3 Bd7 a2 Ka3 B1e2 Qd2 a1Q+ Qa2 Qf1 c7+ Ka7 b8N Nb7 c8Q Qh3 Bc6 Qh6 Bc2 Bc4 Bd3 Be2 Qe6 Ba6 Bc2 Bec4 Bd3 Qc8 Bb5 Ka8 Nc6 Qh3 Nd8 Kb8 Qg2 Qc6 Qf3 Qd5 Bc6 Qd4 Qg3 Qe3 Qf3 Qeh6 Qg2 Na5 Qd2 Bc8 Qa2 Nb7 Qg2 Nf2 Qgd5 Ne4
5k1B/1nbB4/5q1K/2r3B1/pR1rNr2/nBB2B1P/B2B2B1/qb1qNb2 w - - 0 1 illegal: No proof kernel
3r2nq/3n3k/R1q4b/3BP3/Bb1r1q2/1NQRQRbB/2PK2r1/Q6N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b6 a5 b3 d3 Ra3 a4 Ra1 a3 Nc3 d2+ Kf2 dxc1Q Nb1 Ba6 Ke1 Bb5 Nh3 Ke7 Ng1 Ba4 bxa4 Ke8 e4 d5 h4 f5 h6 Kf7 h7 Kg6 b7 f4 e6 d4 h5+ Kh6 a5 g5 e7 g4 e8B g3 a6 f3 a7 g2 Ne2 g1B Ng3 d3 Nd2 a2 Ba4 Bgc5 Bh3 Ba3 Nb3 Nd7 b8Q Qb1 Rf1 f2+ Kd2 Bae7 Qc7 Bb4+ Qc3 Qf6 Nh1 Qc6 Qg4 Qb2 Qe2 Rd8 a8B Bg7 Rfd1 f1Q Qe3+ Qf4 Rf1 Be5 Rf3 Kg7 Rd1 a1B h6+ Kg6 Ke1 d2+ Ke2 Qc7 Bd5 Qc6 Kd3 Ngf6 Ke2 Rhg8 h8R Rg7 Re8 Ng8 Re6+ Kh7 Rd6 Rg2+ Kd3 Qc7 Rb6 Qc6 Ra6 Kg6 h7 Bb8 Qcc5 Qh8 Qcd4 Bb2 Qc3 Bc1 Qa1 Qh4 Qc3 Bg3 e5 Qf4 Qa1 Qg7 h8Q Qgh6 Qf6+ Kh7 Qf8 Qg7 Qfc5 Qh8 Qcc3 Bf2 Re1 d1R+ Ke2 Rd3 Rd1 Rd4 Rd3 Bg3+ Kd1 Bf8 Qg1 Bca3 Qe3 Bab4 Kc1 Bh6 Kd1 Rg1+ Kd2 Rg2+
1n1bB3/3r3r/N4k2/P2QR1nq/1BbbBr2/2R1N1Q1/nn4PK/4N1Q1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 gxh4 b4 axb4 d4 c5 dxc5 d5 cxd6 Qd7 c5 Qd8 c6 Qc7 dxc7 Ra4 Be2 Ra5 Bf1 Ra8 a4 Kf7 f4 b5 Kf2 h5 a5 e5 f6 h3 Kg3 h2 f5 e4 Bf4 h4+ Kh3 b3 Qd6 e3 Qd5+ Be6 c8B b4 c7 e2 Qf3 e1B Qd5 b2 Nd2 b1N Be2 b3 Ra3 b2 Nc4 Bc5 Nf3 Nd2 Bd7 b1N c8Q Rh7 Bd3 Bd4 Bd6 Nh6 Ne3 Ng4 Qc3 Ra7 Bb4 Nc4 Be4 Nb2 Qc7 Rb7 Qg3 Nc3 Bb5 Bf2 Re1 Na2 Rc3 Rd7 Re2 Bb6 Ne1 Bd8 Bc6 Kg8 f7+ Kg7 f8N Kf6 Bb5 Bg8 Ne6 h1R+ Qh2 Rg1 Qg3 Rf1 Nc7 Bg1 Na6 Rf4 N3c2 Bc5 Ne3 Nf2+ Kh2 h3 Bc6 Bd4 Ba4 Rd6 Be8 Rdd7 Qc6+ Ke5 f6 Bc4 Qa8 Ke6 f7 Kf6 f8Q+ Rhf7 Qc5 Rh7 Kg1 h2+ Kf1 Rg4 Qad5 Nh3 Qa7 Ng5 Qac5 h1Q+ Kf2 Qh5 Kg1 Nh3+ Kh2 Rh4 Nf5 Be5 Qg1 Rf4 Ne3 Bd4 Bf5 Rh8 Nd1 Qh7 Re5 Qh5 Be4 Rhh7 Ne3 Ng5+
5rb1/q4B1N/br1B2KR/qr2qQQ1/PB3Rb1/3bP3/1N5Q/1k3n1N w - - 0 1 legal: proof: c4 a5 f4 e5 b4 h5 g4 b5 gxh5 Bc5 d4 exf4 dxc5 d5 cxd5 axb4 Na3 Nd7 Nb1 Nb6 cxb6 Qg5 Qa4 Qf6 Qd1 Qd8 Kd2 Ke7 Kd3 Kf6 Ke4 g5 h4 c5 a4 b3 b7 b2 b8B g4 d6 f3 d7 g3 h6 c4 h7 f2 h5 b4 h6 c3 Bbf4 b3 Rh4 c2 Rh3 g2 Nc3 b1B Bc7 b2 Bb6 Ne7 Qe1 Rb8 Bd2 c1Q+ Kf4 Bd3 Bc7 b1R Nd1 Nf5 Nb2 Ng3 Bd6 Qc5 Bb4 Rf8 h8N Qda5 h7 Rb6 Ng6 Qe5+ Kg4 Ke6 d8Q f5+ Kg5 Kd5 h8Q Ke4 Rh6 Bd7 Nh3 g1Q Qhf6 f4+ Qf5+ Kd4 Qb8 f3 Qc1 Be6 Bg2 f1B Nf2 Bg8 Nh1 f2 Bd5 Bh3 Bf7 f1B Ra3 Ba6 Rf3 Bg4 Rf2 Qg2 Qbc7 Qb7 Rf3 Qa7 Q7c2 Bg2 Rf4+ Be4 Qc7 Nf1 Qb8 Re8 Nf8 Rb5 Nh7 Rf8 Kg6 Rb6 Rf2 Bed3 Qg5 Rb5 Rf4+ Ke3 Ba3 Kd2 e3 Kc2 Bab4 Rb6 Nd1 Rb3 Nb2 Kb1 Qc7 Rc3 Qb8 Rc5 Qc7 Rcb5 Qc2+ Ka1 Qh2 Kb1
7k/r1NQR1b1/2r3r1/R2b2PK/n3B3/1B4PN/1B1NQr1Q/1rb1r2q w - - 0 1 legal: proof: b4 a5 bxa5 e5 f4 exf4 h4 b5 c4 d5 cxd5 g5 hxg5 Nc6 a6 Nb4 Ba3 Nxa2 Bb2 Nc1 Bxc1 b4 Kf2 f5 Kf3 Kf7 d4 Kg7 e4 c5 g3 h5 a7 h4 d6 b3 d5 h3 e5 h2 e6 c4 e7 b2 e8Q c3 d7 c2 d6 Ne7 Nd2 b1R Ra6 Bb7+ Ne4 Nd5 Ba3 c1B Qa4 Rh6 Bc4 Rg6 Qc2 Nc3 Bb3 Na4 Ra5 Bd5 Nh3 Kh8 Re1 h1R Qh2 Qc7 d8Q Qb7 Re2 Re1 d7 Rc8 a8B Rcc6 Qde7 Ra1 Q8f7 Bg7 d8N Ra2 Bb2 Ra3 Kf2 f3 Ne6 f4 Nd2 Ra1 Nc7 Ra2 Qe4 Ra1 Qd7 Ra3 Nf1 Ra1 Kg1 f2+ Kg2 Ra3 Nd2 f1R Re3 Rh1 Kf2 f3 Qc4 Ra2 Qe2 Ra1 Re7 Ra3 Ke3 f2 Kf4 f1R+ Kg4 Rf2 Kh5 Ra1 Be5 Rhf1 Bc2 Qb1 Bb3 Qe4 Bb2 Qh1 Bb7 Rb1 Ba6 Rf7 Bd3 R1f2 Bdc2 Rf8 Bf5 Ra8 Be4 Ra7
B1B1kbnR/Q2q1qP1/2bQ2P1/3br3/1pNK1N2/3n1nQ1/5N2/5rRR w - - 0 1 legal: proof: d4 g5 e4 c5 dxc5 d5 a4 f5 exf5 a5 c4 Be6 cxd5 Bd7 h4 Bc8 b4 axb4 Ba3 bxa3 hxg5 Bd7 Rh4 Be6 Rh1 Bc8 Kd2 e5 Kd3 b5 f4 h5 g4 b4 f6 h4 a5 e4+ Kd4 h3 a6 e3 f5 h2 g6 e2 g5 e1Q d6 a2 g7 Rh4+ Qg4 Rh3 g6 Ne7 a7 Rf3 f7+ Kd7 f6+ Rf5 c6+ Ke6 c7 Kd7 Bg2 Ba6 Nh3 Bb5 Qg3 Qf1 Na3 Ng8 Nc4 Na6 Nf2 Re5 Bd5 Rc8 a8Q Nc5 Qa7 Nd3 Ba8 Bc6 Rg1 h1B Rb1 Be7 f8Q a1N f7 Bhd5 Rh1 Qe8 Re1 Qh3 Reg1 Rb8 c8B+ Kd8 Qa6 Qd7 Qa4 Rb5 Qa7 Re1 Rg2 Rf1 Rgg1 Qf5 d7 Nb3+ Ke3 Nd2 Kd4 Bg5 Qfd6 Be7 f8N Qef7 Nh7 Ra5 Nf6 Bf8 Nh5 Rb5 Nf4 Rc5 Qdc7+ Ke7 d8R+ Qd7 Ba6 Ra5 Rb8 Rb5 Bc8 Ke8 Qd6 Ra5 Rb5 Bf3 Rg5 Re5 Rgh5 Bfd5 Rh8 Nf3+
5B1N/3nr2N/nR2BK2/3rn3/kB5p/1b5n/1bQR2PP/1qQ1RnQ1 w - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 dxe5 Be7 a4 Bd6 axb5 Bf8 e4 f5 f4 fxe4 c4 g5 fxg5 d5 Ra3 dxc4 Ra2 Na6 Ra1 Nb8 Ke2 a5 Ke3 h5 Kf4 h4 g6 a4 g7 a3 c6 c3 e6 e3 Ke5 e2 c7 e1N e7 a2 b6 c2 b7 Be6 c8Q Na6 b8B Rh7 Nf3 Rh5+ Ng5 Nf6 g8R Bc4 Bd2 c1N Rg6 Bb3 Qdc2 Ra7 Na3 Ne2 Bb4 Bg7 B8d6 Ng1 Nb5 Nh3 Rd1 a1N Bc4 Nd3+ Kf5 Nd7 Rhe1 N3e5 Rd2 Bf6 Be6 Bh8 Q8c5 Qb8 Qg1 Qb6 Qc1 Nc2 Bdc5 Nc6 Rh6 Bb2 Kg6 Qb7 Nh7 Nce5+ Kg7 Ne3 Rg6 Nb6 Kf6 Nf1 Bc4 Qc8 Rdd1 Qf5+ Kg7 Qb1 Nd6+ Kd7 Nf7+ Nd3+ Rf6 Bd4 e8Q+ Kc7 Qe2 Bb2 Qec2 Kb7 Bd6 Kc6 Rd2 Rb5 Kg6 Ne5+ Kf5 Rc7 Nh8 Ra5 Bg8+ Kb5 Bf8 Ka4 Re6 Rb5 Kf6 Re7 Red6 Rd5 Be6 Rd3 Kf5 Nbd7 Rb6 Nf4 Kg5 Rd4 Kf5 Rd5 Kg5 Nh3+ Kf5 Ndc5 Kf6 Ncd7+
2R1qnQN/1B2r3/Q1Bq1P2/R1qR3N/r1N2P2/bbp3K1/5B2/r1k1r3 w - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 g5 exf5 d5 c4 b5 cxd5 Nc6 h4 gxh4 a6 Nb4 Bb2 Nxa2 Ba3 Nc1 Bxc1 b4 g4 Kd7 d4 Kd6 f4 h5 Kf2 e5 a7 c5 f6 b3 g5 c4 g6 b2 g7 e4 Be3 c3 Kg2 h3+ Kf2 h2 Qb3 h4 Bh3 Rh7 Bg2 h3 Kg3 Be6 Bf2 e3 Ra5 e2 Qa2 e1R Ne2 Qe8 Na3 Ne7 g8Q b1Q Be4 Qb4 Nc4+ Kd7 d6 Ng6 d5 Re7 Rg1 h1Q Bf3 Ra1 Rd1 h2 Rd4 Qc5 Qa4+ Kc8 d7+ Kb7 d8R Qd1 Rc8 h1R d6+ Bd5 d7 Re1 Nd2 Kb6 d8N Bf7 Bb7 Bb3 Qac4 Ra4 Nf7 Ra1 Nh8 Ra4 Ne4 Qd2 Rd7 Qd6 Nd2 Raa1 Kg2 Ra4 Ng3 Raa1 Qce6 Ra4 Nh5 Raa1 Ra3 Kb5 Ra5+ Kb4 Kg3 Ra4 Qe2 Ka3 Qa6 Kb2 Nc4+ Kc1 Bc6 Rb8 a8B Ra1 Qd5 Rb4 Bab7 Rba4 Qg8 Qdd4 Ne5 Rg7 Bd5 Qa7 Rdd8 Ba3 Nc4 Rge7 Be4 Nf8 Bec6 Qac5 Rd6 Qde5 Rd5 Qed6
N6N/2P2QR1/1r1BQ1bn/KpB2b2/8/4p1Nk/n2Pnr1B/r3Q1qR w - - 0 1 legal: proof: e4 c5 g4 d5 c4 f5 exf5 h5 gxh5 a6 b4 cxb4 c5 e6 Bc4 a5 Bxd5 Bd6 c6 a4 c7 Be5 Bb3 Bc3 Nxc3 axb3 Nb1 Qd3 Ne2 Qd6 Ng1 Qd8 h4 Ke7 a4 Kf6 f4 b5 h6 g5 h5 e5 h7 b2 a5 b3 a6 e4 h6 g4 a7 e3 Ke2 g3 Na3 b1N Qe1 b2 Nc4 g2 Nb6 Qf8 Kd3 Ne7 Ne2 g1R Ng3 Na3 Kc3 b1B Kb4 Nc2+ Ka5 Nb4 Ba3 Nc2 Bc5 Rg8 h8B+ Rg7 h7 Na6 Ra4 Rb8 a8Q Nd4 Qd5 Rf1 Na8 Ne2 Re4 Ng8 Re7 Rf2 Rd7 Qe7 Qe5+ Kf7 f6 Kg6 f5+ Kg5 f7 Kg4 f8B Rb6 f6 Nb4 f7 Qg5 Bfd6 Na2 f8Q Nh6 Qf7 Bg6 Qee7 Rg8 Bhe5 Rf8 h8N Rf1 Qd5 R8f2 Qef7 Rg1 Re7 Bcf5 Qde6 Rgf1 Ne4 Rg1 Bh2 Kh3 Rd7 Qg2 Ng3 Rgf1 Qfe8 Qg1 Rg7 Rf3 Q8f7 Rf4 Qf2 Ra1 Qe1 Rf2
4r3/P3R1NB/Q2B1k2/pNpq2r1/3R2rK/3qb3/1B1P1n2/Q1Rn1q1N w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 d4 b4 d3 b5 Nh6 cxd3 Nf7 d4 Nh6 d5 Ng8 a4 c5 a5 Bd7 a6 Bc6 Qa4 Kd7 Qa5 Ke8 b6 axb6 dxc6 bxa5 f4 Kf7 Kf2 g5 Kg3 b5 h4 e5 a7 e4 h6 b4 h5 b3 f6 g4 h7 b2 h6 e3 f5 e2 c7 e1R c8Q Qd4 Na3 b1Q Rh4 Rd1 Qa6 Qdb2 Nb5 Q1c2 Ne2 Qa2 Bb2 Nd7 Rc1 Qd5 Bg2 Rh1 Be4 Ne7 Bd3 Rg8 h8R Rg6 h7 Bh6 Re8 Ne5 h8Q Be3 Be4 Rg5 Bd3 Ng8 Be4 Qcd3 Re7+ Kf8 f7 Re8 Qhf6 Nc4 Qc3 Nf6 Qd4 Kg7 f8N+ Kg8 Ne6 Rf1 Ng7 Rf4 Qc3 Kf8 Qa3 Kg8 Qa1 Kf8 Kh2 g3+ Kh3 g2 Ng3 g1Q Nh1 Ng4 f6 Qgf1+ Kg3 Kg8 f7+ Kf8 Bh7 Nf2+ Rg4 Rd4 Kh4 Rf4 Bd4 Nb2 Bc3 Nbd1 Bb2 Ra4 Rd4 Bf4 Re1 Be3 Re2 Ke7 f8B+ Kf7 Bd6 Kf6 Re1 Bf4 Re5 Be3 Re7 Rg6 Rg4+ Rd4 Rc3 Re4 Rc1+ Re5 Re4 Rg2 Rd4 Reg5 Bg8 R2g3 Bh7 R3g4+
Q2b2R1/NBQ5/1bN2pBb/1n1q4/1Bp1qR2/P1N2bp1/Q2P2K1/4kb2 w - - 0 1 illegal: No possible last move
1nK2nkr/Q1q1R2N/3Pr1nq/1QqQ1bR1/1r3P2/R3BB2/b6N/2b1B3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 a5 Kc4 e5 g4 h5 f4 c5 b4 a4 d4 h3 g5 h4 g6+ Kg7 b6 a3 Kb5 h2 b7 c4 Bg2 e4 Nc3 h3 Nf3 a2 Re1 e3 Ne4 h1B Neg5 c3 Nh7 Na6 Kc6 h2 b8Q e2 b5 c2 b6 Bd7+ Kb7 Ne7 f6+ Kg8 g7 Kf7 g8R Bf5 Rg5 Ng6 Bd2 Kg8 f7+ Kg7 Bc3 Ba3 f8B+ Kg8 Bc5 c1Q Qb3 Qc2 Qb5 Bc1 B3b4 Qc3 Qc8 Qf8 Qc7 Qa3 Bd2 Re8 Bcb4 Qc5 Bbc3 Re7 Ba5 Rd7 Kc8 Qa4 Bac3 Qa5 b7 Rd6+ Qd7 Rb6 b8Q Rb4 Qa7 Bd3 Qb5 Nb8 d6 Bc2 d7 Bf5 Rb1 a1N d5 Nb3 Ra1 Nd4 Ra3 Ne6 d8Q+ Nf8+ Qdd7 Be6 d6 Bf7 Qdc6 Ba2 Bh3 Bg2 Bg4 h1Q Bd4 Qh3 Nh2 Qh6 Bf3 Bf1 Qe4 Bh3+ Qf5 Ne6 Qd5 Bf5 Rf1 e1R B2c3 Re2 Re1 Reb2 Re5 Re2 Be1 Re3 Qdc6 Re4 Be3 Nf8+ Re6 Re5 Qd5 Ree4 Kd8 Re5 Re7+ Re6 Kc8 Qaxc7+
2R1q2K/Nr2B1PQ/3n3Q/N1Pn1nnN/3b1rb1/3Q1Brk/8/2nB1bR1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 Kf7 Kd3 h5 Ke4 e5 f4 d5+ Kd3 h4 c4 h3 g4 h2 g6+ Kf6 c5 b3 g7 b2 b6 Na6 b7 Nh6 g8B Bg7 b8N Nc7 Be2 Ra3+ Nc3 b1R Nc6 Ne8 Nh3 Nf7 Na5 Ned6 Rg1 h1B Bf3 Qe8 Bh7 Ra4 Nb5 Ng5 Na7 Rg8 Bg6 Bd7 Bh5 Bg2 Ra2 Rb7 Qd2 Ke7 f6+ Ke6 f7 Bf1+ Qe2 Bc8 f8Q Bf6 Qh6 e4+ Kc2 e3 Kd3 Rab4 f5+ Ke5 Nf4 Bd7 Kc2 d3+ Kc3 d2 Qd3 e2 Qh7 e1N Ra3 Bh8 f6 Rd4 f7 d1N+ Kd2 Ra4 f8Q d4 Qfh6 Nc3 Ra1 Nd5 Rb1 Ngf7 g5 Bg4 g6 Ng5 Rb6 Rc4 Rc6 Bg7 Rc8 Bf6 Qc2 Nd3 Bb2 Nc1 Qd3 Rf8 g7 Rc3 Ne2 Ra3 Ng3 Kf4 Bd1 Bgh3 Bhf3 Bg4 Qdg6 d3 Bc3 Be7 Bf6 Bd8 Be7 Rf7 Ke1 d2+ Kf2 Rc3 Qd3 Rf5 Bf8 Bf6 Be7 Rcb3 Qb1 Re3 Qd3 Bd4 Nh5+ Ke5 Kg3 Rf4 Bc2 d1N Kh4 Bg2 Be2 Rg3 Bf3 Bf1 Ba4 N1e3 Bad1 Ngf7 Qa6 Nh8 Kg5 Nef5 Qd3 Nhf7+ Kg6 Ke6 Qg8 Ke5 Kh7 Ng5+ Kh8 Nde3 Bfe2 Nd5 Qc4 Ke4 Bf3+ Ke3 Qa6 Kf2 Qd3 Rg2 Nf6 Kg3 Nh5+ Kh3 Rb8 Rg3 Rc8 Qd7 Qgh7 Qe8+
1q3q1q/1q3Qn1/2P1B2N/b6q/KNB1B2P/2b3RN/r1QRRn2/k3br2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 h6 Nh3 Bb7 Ng1 Be4 Ke1 Bd3 Bg5 hxg5 Na3 f4 Nb1 Bf5 gxf5 Kf7 Ra4 Ke7 Ra1 Ke8 Kd2 Kf7 h4 d5 e4 a5 b4 f3 c4 a4 Kc2 d3+ Kb2 g4 Ka3 g5 f6 Ke6 f7 f2 b6 d4 c5 d2 b5 d3 b7 g3 b6 g4 Bh3 f1Q Nf3 g2 Ne1 g1Q Ng2 Nh6 Nc3 Na6 b8Q Nc7 b7 Qgd4 Ne3 Ne8 Rb1 Ng7 Qa7 Rb8 Nf5 g3 Rh2 g2 Rb2 g1B Re2 Ng4 Nh6 Bf2 Na2 Be1 Qc2 d1Q Nb4 d2 c6 Qb1 Rb3 d1Q Rg3 Bd6 Rd2 Bc7 f8N+ Ke7 e6 Kd6 e7 Ke5 e8B Ba5 Bg6 Nf2 Ne6 Rf8 Nf4 Qh5 Bf7 Q4b6 Re2 Kd4 Bc4 Rf5 e5 Qh8 e6 Rff8 e7 Rf7 Nfd3 Rf3 Qd1 Kc3 Nf4 Qbh7 e8B Q7g8 Ka2 a3 Bg6 Qf8 Rd2 Qh1 Bg4 Qh2 Bge6 Qc7 Be4 Qce7 Kb1 a2+ Kc1 a1B Nh3 Qef7 Kb1 Qd7 Ka2 Qdc8 Ka3 Qd7 Rd4 Qc7 Ka4 Kb2 Rd3 Qce7 Qe2+ Kb1 Qd2 Bc3 Qc2+ Ka1 Rd2 Qf4 Nd5 Qef6 Rg6 Q4g5 Re2 Rg3 Qd2 Rg1 Qd3 Rf1 Qd2 Re8 b8R Qff8 Rd8 Qge7 Qc2 Qhc7 Rd7 Rb8 Rg3 Rb2 Nb4 Qcb8 Rdd2 Qec7 Qb7 Qb6 Qd7 Q6b7 Qf7 Ra2+
1N2rbq1/R4Q2/2R2Q1P/3rb1qQ/nKPrk1bq/3rBnB1/1N2N3/B7 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kd2 a5 c4 e5 h4 Ke7 b4 Kd6 g7 e4 f6 Ke5 h5 d5 g6 e3+ Kc2 g3 Kb3 d3 h6 d2 b6 g2 f7 d4 b7 a4+ Ka3 e2 Bb2 e1Q Ne2 g1Q Nbc3 d3 Rh5+ Qgg5 Ra2 Ne7 g8Q Qh4 g7 Nbc6 b8B+ Kf5 b5 Ra5 b6 Ne5 b7 Nf3 Ba1 Rd5 Kb4 a3 Na4 Ke4 Bg3 Bg4 b8N Qe8 Qh1 d1R Nb2 d2 Qh2 Rd3 Qf2 Nc8+ Qc5 Be7 f8B Nb6 Qf7 Na4 g8Q Rd5 Bg7 Bf8 Bd4 Qc8 Qgg7 Qe6 Qff6 Qg8 Be3 Rd3 Qgf7 Rd4 Nd3 Rd5 Rb2 a2 Rb3 Rd4 Ra3 Rd5 Bc3 a1B Nb2 Rh1 Ra2 d1R Bce5 Rh3 Bc3 Nb6 Ra7 Na4 Bce5 Qf4 Rg5 R1d4 Rg6 Qhg5 Q6g7 Qh4 Rc6 Qfg5 Qff6 Rh1 Qgf7 Rhd1 Qh5 R1d3 Qce7 Rh7 Qff7 Rg7 Qf6 Rg6 Qf7 Re6 Qd6 Re7 Qdf6 Re8+ Re7 Qh2 Nd1 Qhh4 Be1 Bb2 B5g3+ Re5 Bc3 Rd6 Ra7 Ra5 Bce1 Bd4 Bc3 Be5 Ba1 Rc5 Nb2 R6d4 Qd6 Rcd5 Qde7 Nc5 Qef6 Na4+
N1q2kN1/5P1b/3bR1Q1/3N2rq/KB2Q3/PnRq1r2/1B1nrn2/1rB3Q1 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Rh7 Bh3 Bh6 fxg5 Rh8 g6 Bg7 g5 Bf8 Bg4 hxg4 d4 e5 Kd2 b5 Kc2 c5 Kb3 e4 h4 e3 h5 e2 h6 e1R h7 g3 d6 g2 a3 Ra4 d5 Ra7 g7 Nf6 g8Q Nbd7 g6 Re2 g7 Ng4 f6 Nf2 Nd2 Ra5 Nh3 g1Q Nf4 Qg6 Nc4 Qh5 Qg1 Nb6 Rh2 Bf5 Rh3 Qc8 Rc3 Bd3 Qe6+ Be7 g8N Kf8 d7 Bd6 d8B Bb1 Ne3 Nc4 f7 Bg6 Qe4 Nd2+ Kc2 Bf5 Nc4 b3+ Kb2 b4 Nb6 c4 Na8 Rc5 Ba5 Rb5 Ne7 Rg8 h8B Rg3 Ng8 Bh7 Rb1 Rf3 Qgg6 Bb8 d6 Rg5 d7 Be5 Nd5 Bd6 Ka1 b2+ Ka2 Rgg3 Ra1 b1R Bf6 Rg5 Be5 Qc6 d8Q+ Qe8 Qb6 Qc8 Re3 c3 Bd4 c2 Bdb2 Nf1 Kb3 Nd2+ Ka4 b3 Rd3 Qh1 Bb4 Qh5 Be5 b2 Rc3 Nh3 Qg1 Nf2 Bf6 Nb3 Be3 c1Q Bh8 Qd1 Bc1 Qd3 Ra2 Ra1 Be5 b1N Rac2 Qb8 Rc6 Qe8 Beb2 N1d2 Rc3 Qc8 Ra6 Rb1 Rb6 Bc5 Re6 Bd6
1Q3rr1/1Q2qNr1/RrN3PQ/4K3/n1b5/P2r2N1/bkq1RBB1/q4Rb1 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ne5 h5 Ng6 hxg6 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 a3 b5 g7 e5 g6 h5 f6 h4 d6 h3 d7 b3 d3 b2 f7 h2 Ne2 f3 d4+ Kc4 d5 c5 d6 b4 Qe1 Kb3 Qg3 c4 Kf5 c3 Qg1 f2 Bg2 f1B Bb7 e4 Bh6 c2 Qg2 c1R Ng3 e3 Be4 e2 Bb7 e1R Nh5 Nf6 g8Q Ne4 Bf4 Bc4 Ke5 Rcd1 Ra2 Nc3+ Be3 Na4 Nc3 b1Q Rf1 h1Q Ne2 Qc2 Bf2 Rd3 Ng3 Qg1 Qg7 Rg8 Qh6 Qc7 d8N B8e6 Bd5 Qe7 d7 Red1 Nd4+ Kc3 Ke4 b3 N4c6 b2 Ke5 b1R Qgh1 Rb7 Bg2 Rdb1 Rb2 Rab8 Rb6 Rc7 Ra6 R1b6 Re1 Qf1 Re2 Qa1 Qb1 Qe8 Qbh1 Bc5 f8R Qe7 Nf7 Kb2 d8Q Ra8 Qb8 Rca7 Be1 Bg1 Bf2 Ba2 Q1h3 Bec4+ Qe6 Qh4 Qec8 Rc7 Qcb7 Rcd7 Nh8 Rdg7 Rf5 Qd8 Nf7 Qd7 Bc5 Qd8 Rf1 Qf8 Bf2 Qb4 Qd6 Raf8 Qdb8 Qe7+
1kq1QbR1/1q1B4/Qnnb1N2/1B1b2rN/3R2b1/2PKn3/1q4QP/2B1qR2 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 b5 e4 f5 exf5 c5 axb5 cxd4 Ba3 a4 Bc1 Ra5 bxa5 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 d5 f4 Kd7 c3 Kc7 a6 e5 f6 g5 f7 g3 a7 g4 a8B g2 f5 g3 f6 e4 Nf3 g1B Nbd2 e3 Qb3 d3+ Kd1 e2+ Ke1 a3 Bh3 g2 Bf5 a2 Bc6 d4 Nh4 Bb7 Qe6 Rh5 Ne4 Nd7 Kd2 Kb8 b6 Rg5 Bb5 Qc8 Ng6 Bd5 b7 Nb6 Nf4 Ne7 Nh5 Nc6 Bg4 Bf2 Rf1 g1Q Qe8 Qg3 Bd7 Qg2 Rb1 a1Q Rb4 Bd6 f8R Bg1 f7 Qb2+ Ke1 Be3 Nef6 Bef4 Rh8 Bf8 Rg8 B4d6 Qe4 Qh1 Qg2 d2+ Kf2 d3 Ke3 d1B Rd4 d2 Kd3 Bh6 f8Q e1Q Qd8 Bg4 Qe8 d1N Qg6 Ne3 Qe8 Kc7 Qg6 Bhf8 b8Q+ Kd8 Qa8 Kc7 Qa6 Kb8 Q6e4 Qg1 Qe8 Qgf2 Ne4 Qf7 Nef6 Qe7 Be6 Qa7 Bd7 Qb7
b1B1QN2/1nb5/2rn1Q1K/2Nn1Q1q/4Pnb1/P3b2B/2R1q2k/B1N2qR1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g4 f5 h3 b5 gxf5 g5 h4 g4 Bg2 Ra6 Bh3 Rg6 Bf1 Rg5 hxg5 Qe7 Nc3 Qd7 Nb1 Qd8 Kf2 Kf7 d4 c5 f6 Kg6 f7 Kf5 a3 h5 e3 b3 g6 h4 g7 g3+ Kf3 g2 d6 c4 d7 h3 d5 c3 d6 c2 Bc4 b2 Qe2 b4 Bb5 b3 Ba6 h2 Bb5 Nh6 g8B Qc7 d8N Nd7 Nb7 Nc5 d7 Bd6 f8Q+ Nf7 d8Q Rh6 Nc3 b1Q Nd5 b2 Qd1 Qa2 Nb6 b1N Qe1 Nc3 Bc4 Nd5 Ne2 g1B Bb2 c1N Ba6 N1d3 Nc1 Bf2 Rg1 h1B+ Rg2 Qe7 Qf1 Bc7 Qde8 Rc6 Nd7 Qc4 Qg7 Nd6 Nf8 Qf7 Ra2 Qb5 Ba1 Bg1 Rc2 Qb2 Na5 Ncb7 Nab3 Qe5 Nc5 Be6 Ke2 f3+ Kd2 Bf2 Rg1 N3f4 Qh6 Bg2 Qf6+ Kg4 Bh7 Kg3 Bf5 Bd7 Bh3 Bg4 Qd3 Kh2 Qdf5 Nd8 Bc8 N8b7 Qed7 Bg3 Qde7 f2 Qe8 f1Q Ra2 Bf2 Rc2 Ne2 Kd3 Qb2 Kd2 Qa2 Kd3 Nef4+ Kd4 Nb4 Ke5 Bd5 e4 Qb2+ Rc3 Qbe2 Rc2 Be3 Qh6 Qd7 Kf6 Qf7+ Kg5 Rb6 Qee6 Na5 N1b3 Ba8 Nc1 Rc6 Qhf6 Nab7 Kh6 Nbd5 Qe8 Qh5+
2R5/n1Qr1k1b/1Q1P1r2/n3RNB1/NN2B3/b2b1n1R/3P1rr1/r2nQ2K w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 b4 f5 e4 c5 g6 h5 b6 a5 b7 g2 Kf2 f4 e5 h4 b5 h3 b6 h2 g7 c4 e6 f3 e7 a4 Qe1 a3 Qe2 a2 Bb2 g3+ Ke3 c3 Nh3 g1N Qb5+ Kf7 Bd3 f2 Be4 f1B Nf2 c2 Bf6 c1R Nd3 g2 Kf2 Rc6 Nc3 Nf3 Na4 g1R Bg5 Bf5 Nb4 Rh7 Re1 a1R e8R Rg3 Qe2 Ne7 g8N Nc8 Ne7 Na7 Rc8 Rf6 Qd1 Bg6 Nf5 Nbc6 b8Q Na5 b7 Bd3 Qc7+ Be7 Re2 Rg2+ Kf1 Rg7 b8Q Bh7 Qbb6 Rb8 Qe1 Rb7 Qcc5 Rd7 Qcc7 Bc5 d6 Rg8 Nd5 Ba3 Nb4 Rf8 Bf4 Rgg8 Bg5 Rgg6 Kg2 Rgg8 Rg1 h1N Re3 Nf2 Rh1 Rg7 Rh3 Nd1 Kh1 Rgg8 Bc6 Rg7 Re5 Rgg6 Be4 Rgg8 Bf4 Rg2 Be3 Rfg8 Bf4 Rf2 Be3 Rg4 Bg5 Rgg2
qN1N1n2/3B1RBk/2rq1Q2/1Qrq1P2/2n1r2B/2K2Q2/Pn3R1n/r3nR2 w - - 0 1 legal: proof: f4 a5 e4 g5 c4 f5 b4 axb4 h3 d5 cxd5 fxe4 g3 Bg4 f5 Bg7 Nc3 Be5 Nb1 Bf4 gxf4 Bf3 Qb3 g4 Qc2 g3 Qd1 Bg4 hxg4 Ra7 Ba3 Ra6 Bc1 Ra8 d4 Kf8 Kd2 Kg7 g5 e5 d6 b5 g6 c5 d7 h5 d5 b3 d6 b2 Rh2 e3+ Kc2 e2 Rh1 e1N+ Kb3 h4 Bc4 g2 Be6 b4 Bc4 h3 Bd2 h2 Nc3 b1N Qf3 e4 Bd3 e3 Nce2 c4+ Kb2 b3 Nd4 e2 Bc3 Ra5 Nh3 g1R Ng5 Na3 Nf7 Rc5 Nc6+ Nf6 Bb1 Qg8 d8B Nd7 Nb8 Nf8 d7 Rh4 Be7 Rhg4 Nd8 Qd5 Be4 Kh6 g7 Kh7 g8R Rh4 Rg2 Ng4 Bg7 Nd3+ Kc3 e1N Rf2 b2 Rd1 Qd6 Bc6 b1Q f6 Nb2 f7 Qe4 f5 Qed5 Bef6 Rf1 Rg1 h1Q Bb5 Rh5 Bh4 Nh2 Rg6 Rg5 Rf6 Rg4 Ra1 Re4 Ba4 Ng6 f8Q Rg1 Qe7 Nf8 Rf7 Qa8 Qe8 Rf1 Kb4 c3+ Kb3 c2 Rc1 Ra5 Kc3 Nac4 Qe5 Ra6 Qb5 Rc6 Ra1 Ned3 Re1 Rg1 Ref1 Ne1 Nb7 Qg2 d8Q Qh1 Qf6 c1R+ Bc2 Ra1 Ba4 Rc5 Nd8 Rg6 Qb4 Qg2 Bd7 Rh6 Qe3 Qf3 Qb5 Qfd1 Qf3 Q6d5 Qe7 Rhc6 Qg5 Qd6 Qf6 Q1d5
n1N2kbB/2rQ2r1/Bb1q2q1/1P2N2N/1R1RPpB1/2qn3K/R6b/Q4r2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 h5 d4 f5 g4 c5 Kg2 h4 e4 f3+ Kh3 b3 d6 b2 g6 c4 d5 c3 g5 f2 g7 c2 g6 Ra7 Ra2 Nh6 g8B Rg7 Nc3 b1Q Be6 Ng4 Nce2 Qb4 Ng3 Qc3 Be2 f1R Nf3 Rhh7 Bb2 c1B Nh5 Be3 Qa1 Na6 Ne5 Nc7 d7+ Ke7 Rg1 Na8 Rg3 Qe8 d8R Bb6 Re3 Bb7 Bc8 Qec6 Rd3 Qd6 Rg3 Bc6 Ba6 Be8 Rd3 Bf7 Bf3 f4 Rd4 Bg8 Rb4 Bg1 Nc4 Bh2 Ne5 Rf7 g7 Nf2+ Kg2 Qg6+ Bg4 Nd3 Rd6 Ke8 Kh3 Rc7 Rd7 Bc5 d6 Be6 g8N Kf8 Ne7 Bb6 Nc8 Rg7 Re7 Bd5 d7 Bg8 d8Q+ Qe8 Qd4 Qg6 Rd7 Qd6 Qf2 Qg6 Rdd4 Qd6 Kg2 h3+ Kf3 Qd2 Rd5 Qd8 Bc1 Rg5 Nc4 Bg1 Bb2 h2 Kg2 Ne5 Kh3 h1Q+ Qh2 Qf6 Bd7 Qf3+ Qg3 Qfe3 Bg4 Bh2 Bd4 Qec3 Qd3 Nd7 Be5 Nc5 Bd4 Qe6 Bh8 Rgg7 Ne5 Qg6 Rd7 Qcc2 Qd5 Qd4 Qe6 Nd3 Rd6 Qcc3 Qd7 Qdc5 Rdd4 Qcd6
Q1nr1R2/n1b2Rr1/1Qnq2P1/3Rrb1k/B6B/1p6/Qb3P1N/1KN1N1q1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 Kd2 h5 Kc2 e5 g4 c5 g5 h3 d6 e4 d5 h4 g6+ Kf6 d7 c4 b6 h2 b7 h3 d6 e3 Ne2 Kg5 f6 c3 f7 Ra5 Na3 Nc6 Qd2 b3+ Kb1 Re5 b8N c2+ Kb2 Nd4 Nc6 Nb5 Ncd4 Ne7 Nf3+ Kh6 Rg1 h1R Bg2 h2 Rd1 Qc7 d8Q Bf5 Qa8 Nc8 d7 Bd6 d8Q Rg8 Bf1 Rg7 f8R Kh5 Qda5 Qe7 Qdb6 Rg1 Qa4 h1Q Nh2 Rg4 Bg2 Rd4 Bc6 Qg1 Bd2 c1N Nc2 Nd3+ Kb1 Nb4 Nc1 e2 Bg5 e1B Bh4 Bc3 Rd2 Rd3 Ne1 Bb2 Ra2 Bb8 Q4a5 Rd8+ Rd3 Bg4 Rd5 Qd6 Ra4 Nba7 Bb5 Nbc6 Raf4 Nb4 Qa2 Nbc6 R4f7 Bc7 Ba4 Bf5+
5nq1/1n1k2Pb/B5QB/1N1P1K1N/3r3Q/RN2rRq1/1Bnp3r/qb3Q2 w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 f5 exf5 gxh4 d4 cxd4 c3 d3 Kd2 Nh6 Ke3 d2 Ke2 Ng8 Kd3 d5 Ra5 d4 Ra1 Bg7 Kc4 d3 Kb3 Bd4 cxd4 Nc6 Kc3 Nb8 g4 a5 b4 e5 f4 h5 f6 h3 f5 h4 d5 a4 b6 h2 b5 h3 f7+ Kd7 f8B e4 Kd4 e3 Ke4 a3 f6 e2 f7 e1Q+ Ne2 a2 g5 Rh4+ Kf5 Na6 b7 Nb4 b8Q Qe8 g6 Na6 b6 Nf6 b7 Qg3 Qe1 d1R Nec3 Nh7 Nd2 Nc5 Nb5 Ra3 Bh6 Qg8 g7 Nf8 Nb3 d2 Bb2 Rd4 Rg1 h1B Qf4 h2 b8Q Bg2 Qb6 h1Q Qg6 Nb7 Qh4 Rc1 Bd3 Bf3 Rf1 Be4+ Kf6 Bf5 Rf3 Qf1 Be2 Bb1 Qf2 Qh1 Qf1 Re1 Bd3 Re2 Kf5 Rh2 Nc3 Re4 Be2 Raa4 Ba6 Rad4 Nb5 Bd3 Re1 a1N Ree3 Bb1 Rd3 Nc2 Rc3 Re7 Rcd3 Nh7 f8N+ Kd8+ Ne6+ Kd7 Qf7 Ba2 Qc1 Ne1 Nf4 Nc2 Na5 Nf8 Nh5 Kd8+ Kf6 Re3 Ra3 Bf5 Nb3 Bh7 Qg6 Kd7 Kf5 Qhg1 Qe1 Qf1 Qe2 Qa1 Qf1 Bb1
1R1B1br1/1n3P1b/1nQ1pR2/2q1r2B/1R6/2QP2k1/1nQ3Nr/NqB1K1q1 w - - 0 1 illegal: No possible last move
r1N3N1/1rpQBN2/3Qb3/k3Bq2/Bq1b3P/1Q4nR/K1q2P1R/1r1b1n2 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 Kd2 e5 Kc2 g5 Kb3 e4 h4 g3 d6 g4 f6 g2 b6 Kc6 f7 g3 d7 e3 b7 Kb6 d5 e2 d6 e1Q Bd3 Ne7 Bf4 Nd5 Bc2 Qg5 d8B Ne3 d7 Qf5 Nh3 g1R Qd6+ Nc6 Be5 g2 Rh2 Nf1 Nc3 Bg7 Na4+ Ka5 b8Q Nd4+ Ka2 Ne2 f8N Neg3 Be7 Qc3 d8Q Be6+ Bb3 Qc5 Nh7 Qcc2+ Bb2 Rf8 Nb6 Bd4 Q8d7 Rh1 Re1 g1Q Nf6 Rh8 Qb7 Rhb8 Re3 Qg2 Ng8 Qge4 Nc8 Qeg4 Qf3 Rb7 Ng5 Qgf4 Bd5 Q4e4 Nf7 b3+ Ka3 Qeg4 Bc6 Rg1 Ba1 b2 Ba4 b1B Qd1 Bba2 Qd3 Bac4 Qb3 Be2 Bb2 Qgf4 Ka2 Bd1 Rc3 Qfd2 Rf3 Qb4 Re3 Ne4 Reh3 Neg3 Q6c6 Be2 Qd8 Bc5 Ka1 Ne3+ Ka2 Rb1 Qdd6 Bd1 Qe8 Nef1 Qed7 Qce4 Bh8 Bd4 Be5 Qc2#
1N1k3K/1p1b1n2/1qR2r1Q/PbQ1R1QR/2r4q/1PB1r3/bN2n3/n5NB w - - 0 1 legal: proof: h4 c5 d4 g5 e4 gxh4 c4 d5 Qb3 f5 exf5 a5 Qb4 a4 Qb3 a3 Qb4 Bh6 cxd5 c4 b3 Bf4 Qc3 Bd6 Qb2 Bc5 dxc5 axb2 Ke2 h5 Ke3 e5 Ke4 h3 f4 c3 g4 h2 a4 c2 a5 h4 c6 h3 c7 Ne7 f6 Rg8 d6 Nf5 g5 Nc6 f7+ Kd7 f8Q Nce7 g6 Rb8 g7 Nd5 Bg2 Nb4 Nd2 b1B Nc4 Ba2 Bd2 c1R Bc3 Nc2 Nb2 Qf6 Kd5 e4 Bf3 Rh8 g8Q e3 Qg5 e2 Qfh6 e1Q Be4 Qg6 Ke5 Qh4 Rb1 Rf1 Re1 Na1 Bd5 Ke8 Be4 Be6 c8R+ Kd7 Bf3 Re8 Rc6 Rbc8 Re2 Re7 Re4 Ke8 d7+ Kd8 Re3 Nd6 f5 Rf2 f6 Re8 f7+ Re7 Bg2 Rf6 f8Q+ Re8 Re4 Bc4+ Kd4 Bb5 Kd5 Rc7 Re5 Rc8 Rb6 Rc4 Rc6 Nf7 Qc5 Nd6 Rf5 Re3 Be4 Ke7 d8N Kd7 Ke5 Ke8 Nf3 Kd7 Re1 h1N Ng1 h2 Re2 Ng3 Re1 Rd3 Bh1 Ke8 Re3 Ne2 Rh3 Qf2 Rh5 Qh4 Rc7 Rh3 Nc6 Rg3 Nb8 Kd8 Rc6 Rd3 Bd5 h1B Bf3 Bg2 Be4 Bf1 Bh1 Bh3 Qg4 Qgg5 Qf2 Rf8 Ke6 Rf3 Re5 Qe3 Qf5 Qb6 Qc5 Re3 Qg4 Rf1 Qf5 Qf4 Kf6 Qh4+ Kg7 Bg4 Qfg6 Bd7 Qgg5+ Rf6 Kh8 Nf7+
2nkb2n/1Q2R1b1/KrPqbNn1/1n4B1/3rpN1N/R1Q4n/P2B4/R1Q5 w - - 0 1 illegal: No possible last move
2N2q2/8/PB2nn1r/3b1N2/k1P2pR1/3N2RQ/bBbn1r2/rBR1r1QK w - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 e3 h5 gxh5 d5 Nd2 d3 Bb2 d4 Bc1 Bc5 Nb1 d2+ Ke2 d3+ Kf2 Bd4 exd4 Qd6 Kg2 Qe7 Kf2 Qd8 Kg2 Kd7 h4 Kc6 c4 g5 a4 f5 a5 b5 a6 g4 e6 g3 d5+ Kb6 d6 f4 d7 b3 h6 b2 h5 b4 h7 b3 e7 Qf8 e8N Kc6 d8B Nd7 h6 Ngf6 Nc3 b1B Nb5 b2 Bb6 Rb8 Nf3 Bb7 Nbd6 Ba2 Rg1 b1N Nf5 Nc5 Ne1 Ne6 Ned6 Rd8 Qg4 d1B Kh1 d2 Nd3 Bc2 Nc8 d1R Bb2 Nd2 Rc1 Re1 Be2 Rd6 Bd1 Rg8 h8R Rg5 h7 g2+ Kh2 Rg6 Rg8 Rh6+ Qh3 Rd4 h8Q Rde4 Rg5 R4e2 Qg8 Rf2 Rg3 Ba8 B6d4 Kc7 Bh5 Bd5 Bb6+ Kc6 Bg6 Rf3 Rh1 g1R Bh7 Rgf1 Rhg1 R1f2+ Kh1 Rfe3+ Rf3 Ref1 Qg2 Ree1 Rg3 Be4 Rg4 Re3 Nfd6 Bcb3 Re1 Ree2 Nc5 Bd5 Bd3 Ba4 Nf5 Re5 Re3 Ra1 Bb1 Bc2 Rc1 Re4 Nd3 Re5 Bc7 Re4 Qg1 Re5+ Rf3 Re1 Ne5+ Kc5 Bb6+ Kb4 Nd3+ Kb3 Nd4+ Ka4 Nf5 Re4 Rfg3 Re1+
q7/1b1N3R/2r4R/1Qbqp1Pr/KBBkBN1b/2bPN1R1/2n3b1/1Qn5 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 d5 cxd5 f5 e4 fxe4 a4 axb4 axb5 Bg7 Qf3 Bh6 Qd1 Bf8 f4 Kd7 g4 Kd6 f5 Ke5 d3 h5 Kd2 c5 Kc2 h4 Kb3 h3 f6 e3 f7 c4+ Kb2 h2 g6 b3 d6 e2 d7 e1B b6 Bb7 g5 Ra6 g7 Kd4 Bd2 e5 Nh3 Rh5 Bb4 Nf6 g8B Ne4 Na3 Nd2 Bg2 Nc6 Be4 Bh4 Nf4 Bc5 f8N Qa8 Rg1 h1B Rg3 Bg2 d8R+ Bd6 Nd7 Bc5 Qb1 c3+ Kc1 b2+ Kc2 Nb3 Nc4 Nc1 Ne3 Bf3 Bc4 Bg2 Kd1 c2+ Kd2 Na7 Rh8 Nb5 Rh7 Na3 Rh6 Ne2 Ra2 c1B+ Kd1 Nc2 Ra1 Bd5 b7 Rc6 b8Q Bd2 Qb5 Bc3 Rh7 Nc1 Ra6 Rc7 Rah6 Bb7 Qa1 b1Q Qb2 Ne2+ Qc1 Qba2 Qb1 Ng1 Kc1 Rc6 Kd1 Qg8 Kc1 Qaa8 Kd1 Qd5 Kc1 Bd2+ Kb2 Ne2 Kb3 Be1 Qa1+ Bc3 Qb1 Qc8 Ka4 Nc1 Ng6 Qb8 Nf4 Qa8+
b4B1Q/1q1b3b/3RN3/1B2rrNP/1Bn1P3/R2n1bN1/qp1n3k/1RQ1K3 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 a3 b5 Qc2 h5 gxh5 b3 Nf3 b2 Qd1 b4 Ng1 b3 Bg2 Ra5 Bf1 Bb4 axb4 Ra8 d4 Ke7 h4 Kf6 h6 Kf5 b5 Kg4 h5 Kg3 b6 f5 b7 c5 d6 g5 e3 f3 h7 c4 d7 c3 d5 f2+ Ke2 g4 d6 c2 Bh3 f1B+ Kd2 f4 Ra2 f3 Ra4 f2 Na3 b1B Ra5 b2 Qe1 Be2 Rd5 Bf3 Nb5 Nc6 b8R Na5 Nc3 Qe7 d8B Nf6 d7 Rf8 h8Q Ra7 Qd1 f1B Ke1 B1g2 Rd6 Ne4 Ra8 Rf5 Bd2 Nc4 Qc1 Raa5 Ra7 Rab5 Ra3 Rbe5 Bc7 Qf7 d8N Bd7 Ne6 Qg8 Bb6 Qb8 Bc5 Qb7 Rh2 Bh1 Bf1 Bhg2 Rh4 Bh1 Nh3 Kh2 Bd3 g3 Ne2 g2 Bdb4 Ned2 Ng3 g1Q+ Bf1 Qg2 Nhg5+ Qh3 Rhd4 Qg4 Rdd3 Qd4 Ra1 Qdd5 Rda3 Bhg2 Rc6 Bh1 Bf8 Qa5 Rd6 Qa4 Qd1 c1N Be2 Bc2 Rb1 Qb3 Bd3 Qa2 Be2 Rf7 Bf1 Bh7 Bd3 Rff5 Be2 Bfc6 e4 Bf3 Bf1 Qb8 Qc2 Ba8 Be2 Qb7 Qd1 Ncb3 Qc1 Nc5 Bd3 Na5 Ba6 Nac4 Bb5 Nd3+
8/Rrn1N2r/2nP4/b2P2RB/3k2N1/3p1QQ1/1qbnQn1N/B1K1Bbq1 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 g5 a4 d5 axb5 c5 h4 gxh4 d4 Kd7 cxd5 Na6 d6 Ke8 d5 Nb8 Qd4 cxd4 Kd1 Kf7 b4 Kf6 g4 Ke5 f4+ Ke4 b6 a5 b7 e5 g5 h5 g6 a4 f6 a3 b5 h3 g7 h2 f5 a2 b6 h4 f7 h3 f6 Rh7 Na3 Be7 f8B Bf5 f7 Na6 b8Q Nc7 b7 Ra7 Nc2 Bf6 Kd2 Ne7 g8N Nc6 Bg7 Qe8 f8Q Bd8 Bf6 Qg6 Nf3 Qg1 Ne3 Bg6 Qa8 Bf5 b8Q Rb7 Qa6 Bg6 Rb1 a1Q Ng4 Qb2+ Kd1 Bf5 Bd2 Bg6 Be1 Bf5 N4h6 Ke3 Bg2 e4 Ra1 Bg6 Qa2 Kd3 Ne7 e3 Qa3+ Kc4 Ra2 Bb1 Ng4 d3 Qa4+ Kc5 Qa5+ Kc4 Qd2 Kc5 Ra7 Kc4 Nfe5+ Kd4 Qc2 e2+ Kd2 Qf1 Rg1 h1N Nh2 Nf2 Bf3 Qg2 Qf7 Qh1 Rg5 Qg1 Nf1 h2 Bh5 h1B Nh2 Bg2 Neg4+ Ne5 Bg7 Bh3 Qf3 Bf1 Bh6 Nc6 Qg3 Qb3 Kc1 Qa2 Qd1 Bc2 Qc8 Qb3 Qf5 Qb4 Qff3 Qc3 Bd2 e1N Qfe2 Nf3 Be1 Nd2 Qef3 Nb5 Qde2 Ba5 Bf8 Nc7 Bg7+ Kc5 Be5 Qb3 Ba1 Qc3 Bg6 Kd4 Bh5 Qb2+
4qR1r/2bRpbbB/1P1bB1QB/3r3Q/1PnK4/1k5N/1n1n3N/1q1R1Q2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 Kf7 h4 c5 b4 a5 d4 f3 Ke3 a4 f6 a3 h5 a2 h6 f2 d6 Ke6 f7 Kd5 d7 c4 b6 c3 h7 g3 g6 g2 g7 c2 Be2 f1Q Nd2 Nc6 Bg4 Ra5 Ndf3 Kc4 d5 Kb3 d6 Ne5 Nh3 Qe8 d8R Nc4+ Kd4 Re5 d7 Nf6 g8B Bg7 f8Q Ne4 Nh2 Nd2 B4e6 g1B+ Qf2 Bb7 Ra8 Be4 d8Q Bg6 Qd6 Bf7 Rd8 Qe1 Rd7 Qd1 Qc6 Qf1 Qg2 Qd1 Qg6 Qe1 Nf3 Bh2 Rf1 Bf4 Nh2 Bg3 Ba3 Qb1 Bc1 Bf4 Rd1 Bg3 Qf1 Bf4 Ba3 c1N Bb2 Nd3 Bc1 Ne4 Be3 Nb2 Bc1 Bg3 Bh6 Nd2 Re1 Qc2 Rad1 a1B Re4 Qb1 Rf4 Rg5+ Rf6 Bd6 Bf5 Bd5 Bge6 Bc7 Bd3 Re5 Rf8 Bd6 Bef5 Bf7 Be6 Rg8 h8Q Bc7 Qhh7 Rh8 Bc2+ Ka2 Qg4 Re1+ Kd5 Na4 Qh5 Bae5 Rd8 Nab2 Rd7 Bed6 Q7f5 Re5+ Kd4 Ka3 Qfg4 Ka2 Bh7 Kb3 Qgg6 Rd5+
1n1r4/1PQ2Bqr/1b3BRQ/2QB2rr/1R1rp3/1N4bn/P1K5/RN1r2k1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 g5 c4 gxh4 b5 d5 cxd5 a5 bxa6 b6 Be2 Bb7 axb7 Nc6 Bf1 Nb8 d4 Kd7 Kd2 Kd6 f4 c5 g4 h5 g5 e5 f5 e3+ Kc3 e2 g6 e1B+ Kc2 c4 f6 h3 g7 h2 f7 e4 Nc3 b5 Kb2 h4 Nf3 b4 Nd2 h3 Bd3 b3 Ndb1 Rh5 Qc2 Nh6 g8B Qf6 Na4 c3+ Ka3 b2 Kb3 Bg3 Bf1 Ng4 Rg1 h1R Bc4 h2 Nc5 Nf2 Bg5 Qg7 Bf6 Rg5 Qd2 Be7 f8Q c2 Bf7 c1R Qc3 Rf1 Kc2 Nh3 Nb3 Rd1 Qh8 Rd3 Qh6 Bd8 Qa5 Bb6 Qc5+ Kd7 d6 Ra4 Qf5+ Kc6 d7 Kd6 d8Q+ Kc6 N1d2 b1R Bcd5+ Kb5 Qc7 Rd1 Nb1 Kb4 Bde6 Ra8 d5 Rd4 Qd7 Kc4 d6+ Rd5 Qe5 Rd4 Rg2 Rhd1 Rg1 h1R Qc7+ Nc6 d7 Rd8 Kb2 Kd3 Qf5 Ke3 Kc2 Rd6 Qc5 Kf2 Bd5 Rh8 d8R Nb8 Rg8 Rh7 Re1 Rd8 Rg1 Qf8 Rg6 Qg7 Re1 Rh2 Re3 Rhh1 Rc3 Kg1 Rc4 Nf4 Ra4 Rhh5 Rb4 Nh3
B1n1nk2/4b3/4pP2/rRP1Nbbb/Q2Kn2N/4rnB1/BR5R/Q1q4Q w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 a4 b5 axb5 f5 d4 c5 e4 cxd4 exf5 Qb6 Nf3 Qc7 Ng1 Qd8 Kd2 d5 Kd3 g5 c4 e6 h4 g3 f4 g4 b6 g2 a6 g3 b7 Ke7 h5 Nf6 a7 Nc6 b8R Ba6 h6 Qc7 h7 Ne8 Nf3 g1N Nh4 g2 Rb5 Nf3 Rh2 g1B Raa2 Be3 f6+ Kf7 f5 Ne7 Ba3 Nc8 Bd6 Be7 Qa4 Bg5 Na3 Kf8 Bg3 Qf4 c5 Qc1 f7 Bb7 Ke2 d3+ Kf2 d2 Rab2 d1B Bc4 d4 Ba2 d3 Nc4 d2 Ne5 Rg8 h8Q Bc2 Qf6 d1N+ Ke2 Nc3+ Kf2 Rb8 a8B Ne4+ Ke2 Bd1+ Kd3 Bd5 Qh8 Rb6 Qh7 Ra6 Qh8 Ra5 Qh7 Ng1 Kd4 Bc4 Qh5 Bd3 Qf3 Rg7 Qh1 Bh5 Rbe2 Qe1 B8d5 Nc3 Bb1 Bd2 Bf2 Rg3 Bba2 Bdg5 Reb2 Kg7 Ba8 Re3 Bg3 Qd1 Qf3 Qf1 Qfd1 Be4 Qa1 Qc1 f8Q+ Kh7 Qf6 Kg8 Nf7 Kf8 Qg6 Qb1 f6 Bd3 Qe4 Qc1 Qc6 Bf5 Qh1 Ne4 Ne5 Nf3+
R2N1N2/Rb1K1r2/2pPP3/2Bkr1b1/bQn3BN/1Rb2rr1/4QB2/3q2n1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 g5 d4 b3 h4 g4 h6 g3 h5 f6 b6 b2 b7 c6 h7 f3 h6 f2 Ra7 g2 Rh3 Be6 Nc3 Ne7 Na4 Bc8 Rb3 Nd7 Nb6 Ne5 Nf3 g1B Be3 Bg7 Nh4 Re8 h8B Nf3 Bh3 f1R Nd7 Ng6+ Kf5 Nge5 h7 Nc4 Bf2 b1B+ e4 Bc2 Qe2 Re7 b8R Bb7 Bg4 Rf7 Nf8 Re1 Rc8 Bh6 Bg7 Bg5 h8Q Bh2 Qh5 Be5 Qd2 Re3 Rb8 Ng1 Qb4+ Kc7 Ke6 f5 Bf6 f4 Be7 Rg3 Bc5 Bg7 e5 f3 Ra5 Ra6 Ra8 Rb6 R5a7 Rb5 Be7 B7f6 d6+ Kb6 d7 Bh8 Be3 f2 d5+ Kc7 Bd4 f1R Bec5 R1f3 Bf2 Bg7 Qg6 B7f6 Qd3 Ra5 Qe2 Rb5 Rba3 Ba4 Rb3 Bd2 Bf5 Bc3 Bg4 Bg5 Nh7 Qg8 Nf8 Qh7 d8N Qb1 Nhg6 Qd1 Nh4 R7f6+ Ke7 Rf7+ Ke8 Ra5 e6 Rb5 Bce3 Rc5 Bd4 Kd6 Bde3 Ke5 d6 Rb5 Bc5+ Kd5 Ra3 R7f5 Kd7 Re5 Qa5 Rb2 Qb4 Rd2 Rb3 Rd4 Qa5 Rdf4 Qb4 Rf7+
1Q1N4/1brRKQ2/2b3NB/b2Q2B1/1P2q1nq/Pbk5/1n1p1bN1/B1n2R2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 gxh4 b4 c5 Bd3 b5 Bc2 a4 cxb5 c4 Bb3 axb3 d4 Ra7 Ba3 Rc7 Bc1 Rc5 dxc5 Bg7 Qd2 Bh6 Qd1 Bf8 Kd2 Kf7 Ke3 Kf6 Kf4 h5 g4 d5 b6 c3 c6 c2 a3 d4 b7 d3 c7 b2 Nh3 Nd7 b8B Nh6 Ng5 h3 Nc3 b1Q Ne2 h2 Ne6 h4 Rf1 Bb7 c8Q h1B f3 h3 g5+ Kf7 f6 h2 Ba7 Ng4 Kf5 Nc5 f4 Rh7 Qb8 Na4 Bd4 Nb2 Qd2 Bhd5 g6+ Kg8 g7 Kf7 Kg5 h1B f5 Bb3 N2f4 Bhc6 g8N Bg7 Ng2 Bh8 Qd1 Bg7 Bd2 c1N Qf3 Qc2 Qd5 Qc4 Be5 Qe4 Rb1 Na2 Rbd1 Nc1 Nd4+ e6 Ne7 Bf8 Ng6 Bd6 Bdf4 Bc7 Rd2 Ba5 Rdd1 Kg8 Be3 Re7 f7+ Kh7 f8Q Rc7+ Bf6 e5 Ne6 Qe7 Nd8 d2 Rde1 Qb1 Bf4 e4 Re3 Qc2 Rd3 e3 Be5 e2 Bd4 Qg7 Qff7 e1B Be7 Bg3 f6 Bf2 Kf5 Kh6 Ke6 Qh7 Be5 Kg5 Kd6 Nc4+ Ke6 Qh4 Ba1+ Nce5 Kd6 Kf5 Qc4 Nd7 Qh7 Qa2 f7 Nc5 f8B Qc2 Bh6 Na4 Beg5 Nb2 Qc5+ Ke4 Qf7 Qc4 Rd5 Qd4 Ke6 Kd3 Kd6 Rc8 Ke7 Rc7+ Rd7 Qd5 Qd6 Kc3 Qe5+ Qd4 Qed5 Qe4+
2n1Kb2/3P1Q2/2r1Nq2/1B3B2/b2qprq1/R5q1/Pk3qrQ/RNRB2N1 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Ra7 h4 Be6 h5 Ra8 Bb2 Bc8 Be5 Nc6 Bf4 gxf4 g5 Ne5 Bc4 Qd7 Bf1 Ng6 hxg6 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 h5 g7 b5 Kc6 Kd4 g6 e5 d6 e4 d7 f3 f7 b3 d3 h4 f6 b4 Rh3 f2 Rh2 h3 Nc3 b2 Rc1 b1Q Rc2 b3 Rg2 h2 Rc1 h1Q Qh5 b2 Qh2 Rh4 Rg3 Qa1 Nb1 Qf3 Be2 f1Q Bd1 Qe7 d8N Q1f2 Rh3 Rf4 Ne6+ Ke5 Rg3 Qg4 Rh3 Qa3 Re3 Bb7+ Kd7 Ne7 g8B c5 g7 c4 Bh7 c3 g8B c2 Bf5 Nc8 d4+ Kd5 Rd3 Kc4 d5 Bc6+ Kd8 Ra6 d6 Ba4 d7 Rc6 Ke8 Qd6 Ra3 Qdd4 Bgh7 Qfg3 Bhg6 Qgf2 Bh5 Qgg3 Bhe2+ Kb4 Nc3 b1Q Bb5 Qb3 Nb1 Qg4 Nh3 Qbg3 Ng1 Bd6 f8R Bc5 Rg8 Bf8 f7 Qf6 Nd2 Qad4 Ra1 c1R Nb1 R1c2 Rg5 Bc5 f8Q Rb2 Qf7 Bf8 Rh5 Rbc2 Rh3 Rd2 Rc3 Re2 Rc1 Rec2 Nc3 Ka3 Nb1+ Kb2 Nd2 Q3h4 Ra3 Qfg3 Nb1 Rg2 Nf3 Qgf2 Ng1 Qhg3
3b1Q2/N2p3k/K1B2R1q/N2Q1qqq/P1P2r1n/1n6/4bBq1/bRRN3B w - - 0 1 legal: proof: f4 g5 g4 b5 d4 c5 fxg5 cxd4 g6 f5 g7 f4 h4 a6 h5 f3 g5 a5 b4 axb4 exf3 Ra7 f4 Ra6 f5 Rg6 hxg6 Qb6 Kd2 Qa5 Ke1 Qd8 Kd2 h5 Kd3 e5 a4 e4+ Ke2 e3 Kd3 b3 c3 b4 Kc4 e2 Kb5 e1B f6 h4 Nf3 b2 Bd3 b3 Qc2 h3 Qd2 h2 Qf2 Nh6 g8B Na6 g7 Nf5 g6 Nc5 Be4 d3 Bc6 d2 Bgd5 d1Q g8Q Nh4 Nfd2 Qh5 g7 Rh7 Rf1 h1Q Nc4 Qg2 f7+ Ke7 Bf4 Kf6 Bg3+ Kg6 Na5 Be7 f8R Bb7 c4 Bc3 Rf7 Rh6 Qf8 Kh7 Qd4 Rf6 Bf2 Rf4 Rf6 Qh6 g8N Qh5 Na3 b1Q Rc1 b2 Nc2 Nb3 Ne3 Qbf5 Nd1 b1Q Qe4 Qd3 Rab1 Qdh3 Qe5 Ba8 Ka6 Ba1 Be4 Qh6 Qd5 Qhg4 Bf3 Qe8 Be4 Bd8 Ne7 Qgg5 Nc8 Qeh5 Na7 Q2g3 Bh1 Qg2 Bb5 Bc6 Qdc5 Bd5 Bc6 Bf3 Qd5 Be2
3N1bNR/Pr3Nnq/r1B1pn1Q/6KR/4rrPQ/8/2QqB1k1/3B2rq w - - 0 1 legal: proof: d4 a5 e4 g5 b4 axb4 e5 c5 dxc5 f6 exf6 Ra3 Bb5 Ra4 Bf1 Ra8 g4 b6 f4 Ba6 f5 Bb5 Bf4 gxf4 h3 Be2 g5 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kf3 h5 a4 d5 c4 h4 g6+ Ke8 g7 Kd7 a5 Kc6 f7 b3 f6 h3 a6 b5 a7 b4 Ne2 b2 Nd2 b1Q Ra5 h2 Qc2 d4 Ne4 b3 Nd6 Nh6 g8N d3 Nd4+ Kd7 Bg2 d2 Ne6 Kc6 Ke4 d1R Bf3 Rc1 Bd1 f3 Kf4 f2 Kg5 f1R Rb5 b2 Ra5 Bg7 f8Q Nd7 f7 Nf6 Qe8+ Qd7 f8Q Rf4 Qh5 Nf5 Qh4 Re8 Nf7 Rh6 Rb5 Qd2 Ned8+ Kd7 c6+ Kc7 Nh8 Kd6 c5+ Ke5 c7 Kd4 c8B Ke3 Be2 Rg1 c6 Qdc1 c7 Qd2 Qh3+ Kf2 Qh4+ Kg2 Bd7 Rc1 c8B Rg1 Qc5 Qbc2 Bd1 b1R Ba6 Rb2 Ra5 Rb7 Bae2 Qcd3 Qc2 Qh3 Qf7 Bf8 Qe6 Ng7 Nhf7 Qhd3 Qb6 Qh7 Ba4 Nfh5 Qe3 Ra6 Qb6 Nf6 Rd5 Nd7 Qbh6 Nf6 Bc6 Re1 Rf1 h1Q Rf3 Rf1 Rh3 Rg1 Qhg6 Qb4 Qe1 Qd2 Rdd3+ Nd5 Qf6 Qe4 Rh8 Qeh7 Qh6 Rc7 Rh3 Rb7 Bd7 Nf6 Rh5 Rbb4 Bdb5 e6 Qh4 Rbe4 Ba4 Re7 Bc6 Rb7
2r1q1K1/8/3nN1n1/qRN3p1/bqR1PQB1/3QNB1P/2q4R/rk2rB1n w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 g3 b5 axb5 e5 fxe5 Kf7 Ra2 Ke7 Ra1 Ke8 Kd2 f4 Nh3 h6 Ng1 f3 Ke1 Be7 Bd2 Bg5 Bb4 Nc6 Be7 Bf4 gxf4 Nb8 Bg5 hxg5 Kd2 Ke7 Kd3 Ke6 Ke4 a5 b4 f2 c4 a4 h3 g4 c5 g5 b6 a3 b7 d3 b5 d2 c6 d6 c7 a2 b6 g3 Rh2 g2 Na3 Ne7 Rc1 a1Q Nc2 Qa5 Nf3 g1Q Ne3 Bd7 c8B Nf5 Rc4 Qe8 Ne1 Qg4 Nd3 Qh4 Qc2 d1R Qb1 Re1 Nc5+ Ke7 Kd5 Ba4 e6 Kf6 e7 Nd7 b8Q Nf8 b7 Ra6 Bg2 f1N Qd3 N1g3 Bf3 Nh1 Qc7 Ra8 b8R Kg6 Rb5 Ra7 Ke4 d5+ Ke5 d4 Kd5 Kf6 Bd7 Nd6 Bdg4 Ra8 f5 Rc8 Bg2 Ra1 Bf1 Qhe1 Qb8 Qeb4 Bf3 Rh4 Qc7 Re4 Bg4 Kg7 f6+ Kg6 f7 Kf6 Qb3 d3 Qb1 d2 Qd3 Nd7 f8N d1Q Nfe6 Qc2 Qb8 Nf8 Qc7 Qd8 e8B Qe7 Beh5 Qf7 Kc6 Ke5 Bf3 Qg6 Bhg4 Qh5 Nd8 Kf4 Kd5 Qe8 Nde6+ Kg3 Ng2 Kf2 Ne3+ Ke1 Qf7 Ra2 Qf4 Ra1 Qb3 Kd2 Qc3+ Kc1 Qd3 Rd4+ Ke5 Re4+ Kf6 Re5 Kg7 Kb1 Kg8 Rd5 Qdf5 Rd1 Qd3 Rc1 Ng2 Rd1 e4 Re1 Ne3 Ng6+
b5nR/7N/1nr1B1QP/BB3Q2/2qb1RP1/1b1qp1Q1/b1R3nK/kq4N1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 f3 g5 Be3 a5 Nc3 g3 Nge2 g2 Ng1 g4 Nb1 g3 Bg5 Rh4 Bc1 Rg4 fxg4 Ra6 Nc3 Rh6 Nb1 Rh8 h4 Kf7 c4 Kf6 b4 Ke5 h5 d5 f6 a4 h6 a3 c5 a2 c6 d3 b6 Kd4 c7 e5 f7 e4 b5 e3 b7 d2+ Ke2 Be6 Kf3 Bc5 c8B Nd7 f8R Nb6 Nh3 g1Q b8Q g2 Qc2 d1B+ Kg3 Bf3 Ng5 Qf2+ Kh2 Qe2 Rf5 Qc4 Nc3 g1N Nh7 Ne2 Qg3 Nf4 Bd2 Ng2 Rf4+ Be4 Rd1 a1Q Rc1 Bf7 Be6 Qb1 Be1 Qd7 Qcf2 Qd8 Ne2+ Kd3 Qff3 d4 Ba5 Ba8 Rc3+ Kd2 Ng1 d3 Qe4 Qdd5 Qf5 Bd4 Rc2+ Kd1 Qg6 d2 Qf2 Qd3 Rc8 Q5c4 Rd8 Nd7 b6 Kc2 b7 Kb2 b8Q+ Nb6 Qc8 Ka2 Qg3 d1B Qc5 Ka1 Qcf5 Bb3 Re8 Ne7 Rb8 Rc8 Be2 Rc6 Rh8 Qa4 Bf1 Ng8 Be2 Qe4 Bb5 Qa3 Nh3 Qd5 Rc1 Qc4 Rc2 Ba2 Ng1 Qad3 Bd7 Qc5 Bc8 Bfb3 Be6 Qcc4
R1n5/4BKPp/1QNr1B2/1R1R2qr/1nP5/NQ1B2Nr/4bq1k/nq4q1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kf2 a5 Kf3 e5 Ke4 Ke7 Kd5 f3 c4 a4 b4 e4 b6 a3 b7 f2 b5 d3 b6 a2 g7 e3 g6 Kf6 Nd2 Kg5 f6 Kf4 f7 Kg3 f8B e2 Qa4 e1R Rh5 Ra5+ Kd6 Re3 Be7 Nc6 b8Q Nb4 Rh4 Rh5 Rd4 Kh2 b7 Reh3 Nb1 d2 Qb3 d1Q Bd3 f1Q Bb2 Qf2 Ne2 Qdg1 Ng3 Qa5 Qa7 Qg5 b8R Bb7 Ra8 Bf3 Rd5 Be2 Na3 Qb1 Qa5 Qbg1 Rb1 a1N Bf8 Ne7 Qb6 Rg8 Bf6 Rh8 g8N Nc8+ Kc7 d6 Ne7 Rg8 Kd7 Rg7 Rf5 d5 Ke6 d4 Nc6 Rd7 g7 Rd5 Rb2 Rd6+ Kf7 Qb1 Rd5 Qbg1 Bg6 d3 Be7 d2 Bd3 d1Q Qa2 Na6 Rbb5 Qb1 Qb3 Nb4
b1R2nR1/3PK3/b3n1qk/B1qBRnp1/bNQ2QQ1/BPN4r/2q2n2/8 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Bh3 f4 Bg2 Qd5 Bf1 Qd8 h4 a5 h5 g6 h6 Bg7 hxg7 Ra6 Rh3 Rf6 Rh1 Rf5 gxf5 Qd6 Qb3 Qd3 Qd1 Qd8 Kf2 Kf7 d4 h5 e4 c5 b6 h4 b7 h3 b3 a4 f6 h2 e5 g5 d5 Kg6 e6 a3 d6 a2 f7 c3 f8Q c4 e7 c2 e8R c3 Nd2 Bd7 Nb1 Rh3 Na3 Nf6 Re3 Ne4+ Ke1 f2+ Ke2 f3+ Kd3 Qf6 Kc4 Kh6 Kd5 Qg6 Qf4 Ba4 g8Q Nd7 b8B Nf8 d7 Nd6 Bc4 f1B Re5 f2 Ne2 Bg2+ Kc5 f1B Bd5 Be4 Bc7 Bf3 Rg1 h1N Ba5 Nf2 Bb2 c1Q Nc2 Qd2 Nb4 c2 Nc3 c1Q Ba3 Ba6 Qe6 Bh1 Qdg4 Qdc2 Rd1 Bg2 Rh1 Qg1 Rc1 a1N Qef7 Bf3 Qc4 Bg2 Qff4 Be4 Bg8 Ba8 Bd5 Qcf5 Rh2 Nc2 Rh1 Qg2 Rhe1 Qge4 Re8 Qg2 R1e5 Nd4 Rc8 Qc2 Rce1 Qf3 Ree8 Qg3 R1e5 Qe3 Red8 Nh7 Rg8 Nf8 Kb6 Qec1 Kc7 Qe3 Kd8 Nde6+ Ke7 Qb6 Qff5 Qc5 Qff4 Nf5#
3Qb3/q2P2qR/1NP1k1n1/BQ1Nr2b/p6B/2qB2b1/1QnbN3/3R2nK w - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 a5 h4 g5 Nc3 gxh4 Nb1 c5 axb5 c4 Nc3 Ra6 Nb1 Rc6 c3 Rc5 bxc5 d4 Qe2 dxc3 Qg4 Be6 Qd1 Bc8 d4 Kd7 g4 h5 f4 e5 Kf2 h3 f6 a4 d5 e4 f5 h4 d6 c2 g5 c3 g6 h2 Kg2 e3 f7 e2 b6 e1B b7 h3+ Kf3 Qc7 g7 Nc6 b8Q Nge7 g8Q Ng6 f6 Bh6 f8B Qa7 f7 Bg3 Be7 Bd2 Bd3 Rh5 Qe8+ Ke6 Qb2 Nb4 Qb5 Bd7 c6 Be8 Ne2 Rd5 Bh4 Re5 Rg1 h1N Re1 h2 Kg2 Nf2 Rh1 Nh3 f8N+ Kf7 Nd7 Ke6 Nb6 Ng1 Nd5 Qg7 Na3 Qa7 Nc4 Qg7 Qb1 Qa7 Bb2 c1Q Ncb6 c2 Bc3 Qb2 Qa2 c1Q Rb1 Nc2 Ba5 Qc3 Qab2 Bh6 Ra1 Qg5 Qd2 Qf6 Rd1 Qf8 Qg5 Qfg7 Qd8 Bd2 d7 Nf3 Rhf1 Ng1 Rf7 h1B+ Kf1 Qh8 Rg7 Bf3 Rh7 Bh5 Kg2 Qf6 Kh1 Qg7
R1r1n1Q1/4qb1R/Q2Nrqn1/5BNQ/1kn1nPPn/3R1n1B/4B1p1/K7 w - - 0 1 legal: proof: d4 b5 g4 g5 f4 f5 a4 c5 axb5 cxd4 Bd2 h5 Be3 h4 Bf2 Bg7 e3 Be5 Bg3 hxg3 fxg5 f4 Qd3 f3 Qd1 Bf4 exf4 Rh7 Be2 Rh3 Bf1 Rh8 Kd2 e5 Kc1 Ke7 b4 Kd6 Kb2 a5 c4 e4 h4 f2 h5 d3 h6 e3 h7 d2 b6 a4 b7 e2 g6 e1N g7 a3+ Ka2 Ne7 g8B Ra6 b5 Kc5 b6 d5 Qc2 d1N Nd2 d4 Qb2 d3 Nh3 Nf3 Ng5 Nd7 b8Q Nf6 b7 Re6 Bh3 Ne8 Qf6 f1N Nde4+ Kb4 c5 d2 c6 Ng6 c7 Nf2 Nd6 Qe7 Rd1 Nfh4 Ka1 a2 Bf7 Rf8 h8Q Nh2 Qh5 N2f3 Rh2 Bd7 c8B Ne4 Qa8 Bc6 b8R+ Bb5 Qa6 Rg8 Ra8 Bc4 Qfh8 Rf8 Rf1 d1N Qg8 Nb2 Rd1 Bd5 Rd3 Nc4 Rc2 g2 Rcc3 Re5 Bf5 Re6 Ra3 N8f6 Ra5 Rc8 Rc5 Ne8 Rc7 Rf6 Nb5 Rc6 Nd6 Rb6 B7e6 Rc6 Bd7 Bf7 Rca7 Rb6 Ba4 Rbc6 Bd1 Rb6 Be2 Rbc6 Nb7 Re6 Nd6 Qf8 Qgh8 Bg8 Rh7 Qe7 Qg7 Bf7 Qg8 Na5 Kb2 Nc4+ Kc1 a1Q+ Kc2 Qg7 Kb1 Qgf6 Ka2 Nge5 Ka1 Neg6+
Q1B1Q1r1/1Q1K4/4rRp1/P6N/k3B1qB/1q1rq3/1P2nqnN/N2R1rq1 w - - 0 1 illegal: No proof kernel
1B3Q2/1bpn1n2/3N3r/1BP1Q1n1/1KbB1r2/2Rp2P1/2rRqR2/Q2b2kN w - - 0 1 legal: proof: a4 e5 f4 b5 axb5 g5 e4 gxf4 g4 f5 d4 fxe4 dxe5 Bb4+ Kf2 Be1+ Ke2 Bg3 hxg3 Ba6 Ke1 Bc8 Kd2 Kf7 Kc3 Ke6 b4 d5 g5 Kf5 e6 h5 b6 a5 e7 d4+ Kb3 e3 e8R h4 c4 a4+ Ka3 e2 b7 Kg4 b5 h3 b6 h2 g6 f3 c5 e1N g7 Rh6 Bg5 Qe7 Nc3 Qe2 Be3 f2 Nb5 Nf3 Rd8 Nd7 b8B Ng5 Kb4 a3 b7 a2 Rc1 a1R Rc3 R8a2 Nd6 Rc2 Nh3 Kf3 Qe1 Ra8 Qa1 Raa2 Rg1 h1B Rg2 Ra6 Rh2 Rf6 Rg2 Nh6 g8Q Rf4 Qg7 Nhf7 Qe5 Rc6 Ne8 Rh6 Nd6 Qd1 Bb5 f1B Nf2 Bc4 Rf8 d3 Bd4 Qe2 Rh2 Bg2 Nh1 Bh3 Rg2 Bg4 Rh2 Qe4 Rd2 Qe2 Ba7 Kg2 b8Q Bb7 Qc8 Qf2 Bb8 Bd1 Qd8 Kg1 Qde7 Nd8 Rf6 Ndf7 Qf8 Rg4 Rf4 Qe3 Rf3 Rf4 Rff2 Qe2
q7/P1BB1n1k/3P1p2/1nR1QpnN/4R2N/2bBbN1r/4r1r1/KR4Qb w - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 c5 b4 axb4 d4 h5 gxh5 e6 dxc5 Qb6 f4 Qd8 f5 exf5 Kd2 b5 Kc2 g5 Kb2 g4 h4 g3 e4 g2 a4 b3 c6 b4 a5 Be6 a6 Bg7+ e5 Kf8 h6 Qb6 a7 Qd4+ Nc3 Qe3 h7 Qg3 h5 Nd7 h6 Nc5 c7 Re8 c8B Qf3 Rb1 Ne4 Bd3 Ng5 Bd7 Bf6 d6 Qa8 Be3 Bd5 Nf3 g1B Bb6 Be3 e6 Bc6 Ka1 b2+ Ka2 Re7 Ne4 Bc3 Qg1 f6 Bc7 Re8 e7+ Kf7 Rh4 Kg6 Ng3 b3+ Ka3 Bb7 Re4 Bd5 Nh5 Bc6 Re1 b1R Rf1 b2 Ka2 Rd1 Re1 Rd2 Rb1 Rd8 e8R Rg2 R8e5 Re8 Rc5 Bed2 Rf1 b1N Rd1 Na3 Rb1 Bb4 Ka1 Nb5 Rf4 Ree2 Re4 Be3 Rd5 Ne7 Rc5 Rd8 h8N+ Kh7 Ng6 Rh8 Ngh4 Ng6 Rb2 Ne5 Rb3 Nef7 Rb1 Kg8 h7+ Kf8 Nf4 Kg7 Nh5+ Kh6 Qc1 Bbd2 Qg1 Bc3+ Rb2 Rg8 h8Q+ Nh7 Rg4 Rgf2 Ne5 Na3 Nf4 Bh1 Nef3 Bcd2 Nhg6 Rh2 Rb1 Rg7 Qe8 Nb5 Qe6 Rh3 Ngh4 Bb4 Qe5 Bc3+ Rb2 Rg5 Nh5 Rg8 Re4 Rgg2 Nd2 Nhg5 Ndf3 Bb4 Rb3 Kh7 Rb1 Bc3+
knK1N2r/N1qQ4/Q2B1P2/4R3/pR2qpbq/1Q1N1n1b/2brP3/B2B4 w - - 0 1 legal: proof: c4 b5 g4 f5 a4 e5 axb5 g5 h4 Bg7 f4 gxh4 g5 d5 cxd5 Bf6 gxf6 exf4 Kf2 Kd7 Kf3 a5 d4 c5 b4 Kc7 d6+ Kb7 b6 h5 b5 h3 d5 c4 d7 h2 d6 c3 Bh3 a4 Qd3 h4 Nd2 c2 Ne4 Rh5 Bb2 c1Q Rb1 Qe8 d8Q Ra5 d7 Qd1 Nd6+ Ka8 b7+ Ka7 Ba1 Qe5 Ne8 Qc1 Rb4 Na6 b8B+ Ka8 b6 Ne7 Bd6 Qc7 Bg4 Nc6 Nh3 Rc5 Nf2 h3 Rhb1 Rc2 b7+ Ka7 b8N Rd2 Qb3 Rh8 Nd3 Ka8 Rc1 Qd4 Rc5 Qc4 Re5 h1B+ Kf2 f3 Kg3 Nd4 Kf4 f2 Nc6 f1B Na7 h2 Bh5 Qa5 Bg6 Bh3 Qb6 Be4 d8Q h1Q Qd7 Nb8 Qa6 Qac7 Kg5 f4 Bf5 Rb2 Kg6 Qc2 Kf7 Nf3 Ke6 Qe1 Ke7 Qh4 Be6 Qb1 Bc4 Rd2 Bf7 Qc3 Kd8 Bef5 Bc4 Bfg4 Bg8 Bb7 Bc4 Be4 Kc8 Qcc1 Qc3 Bg6 Bb3 Bh7 Bd1 Qbc2 Nc5 Qe4 Qb2 Qcc4 Qb3 Qf7 Nd3 Qfc4+ Kd8 Qc7+ Ke7 Qcb7 Kd8 Qec6 Nc1 Bc2 Nd3 Qc4 Qb1 Qce4 Qb3 Qb6+ Kc8 Qc7+
3q2qK/1B6/rr1P3N/3Q1p2/bR1Qbp1R/4NBq1/4BnPR/2kn1N1n w - - 0 1 illegal: No possible last move, all moves rejected
3R2BQ/2rb2PB/4rq1N/1p2P1n1/pR1Q1n2/NQ2nb1r/1R2qK2/2N4k w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 hxg5 Nc6 b6 Nb8 b7 Na6 b8N Ba3 Kf2 Be7 Ke1 Bf8 b4 Nf6 d4 Rg8 c4 Bg7 b5 Ne4 b6 Nac5 b7 Bf6 Be3 Na6 c5 Rh8 Bf2 Be7 c6 Nf6 Be3 Bc5 dxc5 Qe7 Bd2 Qd8 Ba5 Ng8 Bb6 cxb6 e4 Ke7 g4 Ke6 g6 Ke5 g7 d5 c7 f5 g5 h5 g6 b5 c6 d4 Ra4 h4 Bc4 d3 Nd2 h3 Nb3 h2 Na5 d2+ Kf1 f3 Nh3 f4 Bd5 f2 Ke2 f1N Rb4 f3+ Kf2 Bd7 c8B Nc7 Na6 Qf6 b8R Nh6 g8Q Nf7 g7 Ne6 c7 Ne3 Ng5 Kf4 Nb3 Rh6 Nc1 Kg4 e5+ Nf4 Re1 h1R Re2 R1h3 Qd8 Rg6 Qb3 d1B Rb2 Be2 Bcb7 Kh4 c8Q Bd1 Nc5 a5 Nce6 a4 Nd4 Ra7 Nc2 Be2 Ba8 Rc7 Na3 Bd1 Be4 Be2 Bad5 Bd1 Ne6 Ng5 Nd4 Be2 Bg8 Bd1 Ke1 Kg3 Bd3 Be2 Nf5+ Kg2 Nh6 Kh1 Ra8 Bd1 Qb8 Be2 Qb6 Bd1 Qd4 Be2 Qe8 Bd1 Rd8 f2+ Kd2 f1Q Be4+ Qf3 Ke1 Qg2 Bd3 Qg4 Kf2 Bf3 Bb1 Qa6 Bc2 Re6 Bch7 Qd6 Bf7 Qe7 Qh8 Qf6 Bfg8 Qgf5 Ne2 Qd3 Nc1 Qe2+
Q1NB3r/1nKqpN2/P6n/n1Q1P2p/1q1N1Rb1/1Rb1qR2/3k4/B4Q1r w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 f4 g5 fxg5 Ra4 e3 Nh6 a3 Ra8 Bc4 Ng8 h4 Nd7 g6 Nb8 Ba2 b3 g7 bxa2 g4 Nc6 h5 Qd6 g5 Qg6 hxg6 Nb8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 a4 b5 d6 c5 d7 h5 d8B b4 a5 f6 d5 b3 a6 b2 d6 Bg4 d7 Kb4 Kd5 c4 e4 c3 e5 f5 Rh4 c2 Na3 Kc3 Nf3 b1Q Qf1 f4 Nd4 f3 Bb2+ Kd2 Nab5 c1Q Na7 f2 Nc8 Be2 Rf4 Nh6 g8Q Bg4 g7 Nc6 g6 Rb8 Qh7 Rb6 g8R Na5 g7 Nb7 Rf3 Qf5 Rb1 a1N Rf4 Nb3 Ba1 N3a5 Rb3 Rc6 Qg6 Qc3 Qd6 Qe3 Qa3 Rc1 Qc5 Qfd3 Rf3 Qb5 Rf4 Qb4 Rf3 Nc4 Kc6 Nca5+ Kc7 Rb1 Qh3 f1Q Qh1 Qfd3 Qf1 Rh7 Rh8 Qf5 g8Q Bg7 Rf4 Bf6 Qgd5 Bh4 Rf8 Rh8 Rf3 Qe6 R8f4 Be1 Qdc6 Nd6 Qa8 Ndb7 Qfc4 Bh4 Q4b5 Rh1 Qf1 Be1 Kb8 Bg3 Bb6 Be1 d8N Kd1 Nf7 Qd5 Bd8 Qd7 Qfb5 Bc3 Qbc4 Qf5 Qf1+ Kd2 Kc7 Qd7+
3bQ1K1/2n1PR2/1b1Rn3/1Q4B1/1NBp1r2/N4Nrk/1pb2Pbq/bR3B2 w - - 0 1 legal: proof: e4 e5 b4 c5 d4 cxd4 g4 h5 gxh5 Qe7 b5 Qe6 b6 f5 exf5 axb6 fxe6 b5 Qd3 b4 Qf3 Rh7 Qd1 Rh8 Ke2 Ke7 Kd3 Kf6 Ke4 g5 Kd5 Kf5 c4 b5 a4 b3 h4 b4 a5 g4 c5 b2 c6 b3 a6 e4 c7 g3 h6 g2 h5 e3 h7 e2 a7 Kg4 e7 d3 h6 d2 Rh2 Bb7+ Kd6 Bg7 c8B Nf6 Ke5 Nh5+ Kd6 Nf4 Nf3 e1B Ra4 g1B Qe2 d1Q+ Rd4 Rf8 h8R Na6 h7 Ba5 Qb5 Nc7 Rh1 Bb6 Na3 b1B Rd2 Rb8 a8N Ba1 Bc4 Rf7 Rf8 b2 h8Q Nfe6 Rd4+ B1e4 Bg5 Rf4 Rf7 Bh2 Qe8 Bc2 Rf1 Bc6 Ba6 Kh3 Rd3 Qe2 Rb1 Qf1 Ke5 d5 Rdd1 Qg1 Rd4 Rg4+ Kf6 Rg3 Rd3 Rd8 Kg6 Rd7 Kh7 Bb7 Kg8 d4 Rc3 Rd8 Bf1+ Qg2 Rc6 Rd5 Bc4 Rf5 Rd6 Rf4 Bf1 Bc5 Nb6 Bd5 Na4 Bb6 Nc3 Ba8 Bc4 Bae4 Nd5 Qg1 Ne1 Bg2 Nb4 Rf5 Bd5 Rd3 Rd7 Na8 Qa5 Bhc7 Rd6 Rg3 Nf3 Bd8 Bf1 Qh2 Bdc4 Rf4 Qab5 Nac7
2K5/2Q5/1bR1P3/5kB1/2pnr2p/1BNRP1qn/QR1nq1n1/Nr1bB1Q1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 cxd5 e5 fxe5 b6 a4 b5 axb5 axb4 Kf2 Kd7 Ke3 c5 Ke4 h5 Kf5 h3 g4 h4 d4 f6 b6 h2 g5 b3 e3 b2 d6 Ra6 b7 Rc6 g6 Ra6 d5 Qb6 g7 Ra4 Na3 b1N Bd2 Re4 Ra2 Nc6 b8Q Qc7 Be1 Nd2 Rb2 Ba6 Nc2 Be2 Qa1 Bd1 Ne2 Rh6 Rg1 h1N Nc3 Nf2 Qa2 Nh3 Rg6 c4 Be2 Be7 Na1 Bd8 Bd3 Rh7 Bc2 Rh6 Bb3 Rh7 Rh6 Nd4+ Kg6 f5 Kf7 f4 Qb6 Kc8+ Ke8 Ne7 g8Q f3 Qg1 f2 Qc6 f1Q d7+ Kb8 d6 Nd5 Rg6 Ndf4 Re6 Qe2 Qc5 Bg5 d8B Ng2 d7 Be7 Qca5 Bc5 Bg5 Bb6 d8R+ Kb7 Rd5 Kc8 Rc6 Rf7 Qc5 Rf1 e6 Kb8 Qca5 Qg3 Rcd6 Kc7 Ke7 Nc2 Rd3 Nd4 Qe5 Bc5 Qg7 Ba7 Ra6 Bb6 Ke8+ Kd6 Qh7 Ke5 Kd7 Nf5 Kc8 Nd4 Qa7 Kf5 Qc7 Bc5 Rd6 Bb6 Rc6 Bc2 Bf2 Rb1 Be1 Bd1
1N1rBnBq/4qQ2/Q3p3/5R1r/Rp2P3/Nr2R3/1k1bPK1n/1b1BQ1r1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 Qd7 a4 Qd6 f3 Qg6 Ba3 Qe4 fxe4 bxa3 d4 Kd7 g4 Kd6 g6 b5 a5 f5 g7 c5 a6 h5 g5 b4 g6 c4 a7 a2 Nh3 f4 Rh2 h4 Qd2 f3 Nf2 h3 Nd3 c3 Ne5 c2 Rf2 h2 Bh3 Ba6 Bd7 Rh5 Be8 Nd7 Nc6 h1R+ Rf1 Rb8 a8Q Bd3 Qa6 c1Q+ Qd1 Rc8 Nb8+ Qc6 Qd2 R1h3 Rf2 Nh6 Kf1 Bc2 Qe1 Ng4 Kg1 Nh2 Rf1 Kc7 d6+ Kd8 d5 Qb7 Rf2 Bd3 Rf1 f2+ Kg2 Nc5 d7 Kc7 d8R Ne6 g8B Rf3 Bgf7 Bh6 g7 Bd2 g8B Nf8 Ba4 e6 Bd1 Bc2 Be8 Rb3 Qa4 Kb6 d6 Kc5 d7 Kd4 Qa6 Rcc3 Rc8 Rd3 d8Q+ Qd7 Qe7 Qb7 Rg1 f1R Qf7 Qa7 Rc5 Qe7 Rb5 Kc4 Rf5+ Kd4 Na3 Kc3 Nc4 Rd8 Kg3 Bb1 Rh1 Ng4 Rh3 Rg1+ Kf3 Nh2+ Kf2+ Bd3 Rb1 a1Q Re3 Qa5 Ra1 Qe5 Ra4 Qh8 Na3 Kb2 Qb5 Bc2 Qa6 Bb1
q2QR3/1P1KQ2r/B3RrB1/1bqbP3/3BQ3/r1R1n2N/6pp/4knrN w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Ke7 Kd2 Kd6 Ke3 h5 Kf4 c5 e4 a5 b4 f5 b6 a4 b7 c4 g6 g2 b5 c3 g7 h4 b6 c2 Be3 c1Q Bd2 a3 Rh3 g3 Bc4 a2 Qg4 Nc6 b8R Rh7 b7 Ne5 Be3 Nf6 g8B Ra6 Nc3 Nf3 Nd1 Be6 Nf2 Nh2 Bf7 Nf1 Nh1 Rb6 Ba6 Qc5 Qe2 Ng4 Re1 a1R Bg6 Ra3 Qc4 Qh8 Re8 Qf8 Kg5 f4 Qd3 Bf7 Kf5 f3 Bf2 Nge3+ Kf6 Kd7+ d6 Kc6 d7 Bd5+ Ke5 Qg8 d8Q Qgf8 Qe7 Qg8 Ne2 g1R Nf4 g2 Rg3 h3 Kf6 h2 Nh3 Rb2 Qe2 Kb6 Qc2 Ka5 Re2 Ba2 d5 Kb4 d6 Bd5 d7 Rbb3 Qb1 Kc3 d8Q Rb6+ Ke5 Rf6 Re1 Nc2 Bd4+ Kd2 Re3 f2 Rc3 Qa7 Rge3 Qa8 Re1 Nce3 Qbb4 Qf8 Qc4 Be6 Kd6 Bg8+ Kd7 Bd5 Re2+ Kd1 Rb2 Ke1 e5 Ra5 Rb6 Ra3 Qf7 Qc5 Rbe6 Nd2 Qa4 f1B Qfe7 Bfc4 Qc2 Ndf1 Qe4 Bb5+
N2rR1Nr/3Q1R1B/4p3/Q2PnP1R/2pq2qr/nBq5/K1B1k2n/3N2b1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 g4 Bd7 b3 Na6 Bb2 Bg7 Be5 Nb8 Bf4 gxf4 h3 Bf8 g5 Be6 Ra4 Bf7 Ra3 Bh5 Ra1 Bg4 hxg4 Bh6 Ke2 Bg7 Ke1 Bf8 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb2 a5 g6 h5 b6 e3 b7 a4 g7 e2 b4 e1R g5 a3+ Ka2 f3 g6 f2 b5 h4 b6 h3 Nd2 h2 Ne4+ Kd7 d6 Kc6 d7 Kd5 Nh3 Nf6 Bd3 f1Q Bc2 Kc4 Nhf2 Ng4 Nf6 Qh3 Ng8 Nc6 b8R Nce5 b7 Re4 Rc1 Qa5 d8Q Qac3 Qa5 Qhg3 Re8 Rd8 b8N Rf4 Re1 h1Q Na6 Qe4 Rh1 Nh2 Nc7 Rfh4 Na8 Qgg4 Rb1 Qed3 Rb7 Qe3 Qf3 Qef4 Qc6 Qe4 Nd1 Qd5 Bb3+ Kd3 Qd7 Ke2 Ra7 Qde4 Bc2 Qee3 Nf6 Qee4 g8B Bg7 Bd5 e6 Bdb3 c4 d5 Qed4 Ng8 Bh6 g7 Be3 Ne7 Bf2 g8B Bg1 Bh7 Qf2 Ng8 Qfd4 Kb1 a2+ Kc1 a1N Kb1 Qgf3 Ka2 Qh3 Qc8 Qg2 Rf7 Qgg4 Qd7 Kd2 Bd3 Nc2 Be4 Na3 Bec2 Nf1 Rh3 Ke2 Rh1 Rh6 Rh5 Nh2 Rg5 Rh3 Rh5 Rh4
1Nr1Bb2/R1pr3p/2qN4/1BP2RR1/5B2/1Pkbb1rK/q2N1Q1Q/n1q5 w - - 0 1 legal: proof: d4 b5 a4 g5 axb5 e5 dxe5 f5 e4 fxe4 h4 Bd6 g4 Bc5 f4 gxf4 g5 Nc6 h5 Nce7 Qe2 Ba3 Qd1 Ng6 hxg6 Bf8 Kf2 Ke7 Kg2 Ke6 c4 a5 c5 d5 b6 a4 b3 e3 g7 f3+ Kh2 a3 g6 d4 b7 Kd5 b8N e2 e6 e1B e7 f2 e8Q d3 Bf4 Kd4 Qee2 d2 Qc1 d1R Nd7 a2 Na3 Ba6 Nb8 Nf6 g8R Qe8 g7 Bd2 Nc4 Nd5 Nd6 Ne3 Kh3 Bd3 Qc2 Qc6 Qh5 Bc1 Qce2 Rd2 Nf3+ Kc3 Qh6 Rd1 Nd2 Nc2 Rg1 Ra4 Rg5 Re4 Rf5 Re3+ Kg4 Rf3 Qh2 Rg3+ Kh4 Kb4 Qe1 Kc3 Be2 f1Q Qef2 Qg1 Bh5 Qe1 Be8 Qg1 N2c4 Be3 Nd2 Rg2 Kh3 Qf1 Rb1 a1Q Rb2 Qc1 Ra2 Na1 Ra7 Qe2 Rg5 Be7 Rf8 Rg8 Rf7 Bf8 Rff5 Rh8 g8B Rg4 Nf1 Qa2 Bc4 Rg8 Bb5 Rg3+ Kh4 Rg7 Nd2 Rd7 Rg8 Rd8 Rgg5 Rc8 Rg8 Rg7 Kh3 Rd7 Rg7 Rg1 Rgg5 Rg3+
n1RnQ3/q1nr2KP/2k3N1/1R4B1/1Q2r3/nP3N1p/BB2bp2/4RNnr w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 g3 h3 Ra4 h2 Ra6 Nf6 Ra1 Ng8 Nh3 h5 Ng1 h4 Qc2 h3 Qb3 Be7 Qd1 Bh4 gxh4 Kd7 Ra5 Ke7 Ra1 Ke8 Kf2 Kd7 Kf3 f5 e4 c5 d4 a5 e5 c4 e6+ Kc7 e7 a4 e8Q a3 h5 c3 h6 c2 h7 a2 Bc4 Ra7 Nd2 Nh6 Nf1 Nd7 Qde1 Nb6 Qb4 Na8 Rb1 a1N Ba2 Qe7 d6+ Kb7 d7 Nf7 d5 Nd8 d6 Kb6 b3 Ba6 Ba3 c1N Bb2 Ne2 Re1 Nc2 Rc1 Kb7 b6 Kc6 b7 Qg7 Re1 Na3 b8R Qf7 Rb5 Rb7 Kf2 f3 Ke3 f4+ Ke4 f2 Nf3 Ng1 Ke5 Qe7+ Kf5 Qe3 Kg6 Qa7 Kg7 Rc7 Qe6 Re8 Qf7 Re4 Qe8 Ne2 Rg1 h1R Rg6 Rb7 Rf6 Ng1 Rf8 Nf7 d8B+ Rd7 Bg5 Nd8+ Qe7 Rb7 d7 Rc7 N1d2 f1N Qe8 Ne3 Nf1 Nd5 Nh4 f3 Ng6 f2 Rg8 Rb7 Rh8 Nf7 d8N+ Kc7 Nc6 Nd8 Ra5 Be2 Nd4 Ne7 Rb5 Nd5 Qg8 Kd7 Nf3 Kc6+ Qf7 Rd7 Qfe7 Nf7 Rc8+ Ndc7 Qe8 Nd8+
3b1rnN/kb1qB1np/3PbB2/p1bN4/PB2Q3/1n4Q1/b2RK3/1R1Q2R1 w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 fxe4 f4 d5 c4 g6 cxd5 Nd7 f5 Nb6 f6 Nd7 Be2 Nb8 h4 b5 g4 a5 g5 Qb6 Bg4 Qd8 Bf5 gxf5 h5 Nh6 Ne2 Rg8 Ng1 Rg6 hxg6 Ng8 Rh4 Nc6 Rh2 Nb8 Rh1 Ba6 Nh3 Nd7 Kf1 Qb6 Ke1 Kd8 Ba3 Nh6 Rg1 Bg7 Kf1 Rc8 Bc1 Nb8 Ba3 Kd7 Qc1 Rh8 Ke1 Qd8 Qd1 Bf8 Rh1 Ng8 Bc1 Bc8 Ng1 Ke8 d4 Kd7 a4 Kc7 d6+ Kb7 d5 e5 f7 e3 c6+ Ka7 g7 b4 d7 b3 c7 b2 g6 e2 Rh6 e4 Nf3 f4 Ng5 f3 Rh2 Na6 Nc3 b1B Bb2 Ba2 Rb1 Bc5 f8B Bb7 c8Q Nc7 Nf7 Ne8 Qc6 f2+ Kd2 e1B+ Ke2 Qc7 d8B e3 Bde7 Qd7 Qe6 Bd2 Qe4 Bc1 Ba1 B1a3 Bb2 Bb6 Bb4 Bd8 d6 Be6 Nd5 f1B+ Kf3 e2 Be7 Bfh3 Bbf6 e1N+ Ke2 Nd3 Rg2 Nc5 Rf2 Nh6 g8Q Nb3 Qg7 Rf8 Nh8 Bf7 Qg8 Bhe6 g7 Kb8 Ke3 Ka7 Rd2 Bc1 Ke2 Ba3 Bbc3 Bc5 Bb4 Bg6 Qf7 Bgf5 g8R Ng7 Qg6 Bf7 Qg3 B5e6 Qgf3 Ngf5 Rg1 Ng7 Qc3 Ng8 Qg3 Na1 Nf4 Ba2 Nd5 Be6 Qc3 Nb3 Qh3 Nh5 Qg3 Ng7
1kNR4/r1q1B3/1nqRQ1Bn/4n3/1p1PRn1N/nPQ4K/pN1r3Q/7b w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 c3 d4 cxd4 gxh4 Qb3 c6 Qd1 c5 a4 c4 d3 cxd3 a5 Qd5 Ra2 Qd7 Ra1 Qd8 Be3 b5 Rh3 Bh6 Bc1 Bf4 Rh2 Bc7 Rh1 Bb6 axb6 Qd5 Qf3 Qd7 Qd1 Qd8 f4 Kd7 Kf2 e5 g4 a5 Kg2 h5 b7 Kc7 b3 a4 f6 h3+ Kg3 e4 g5 d2 f5 b4 g6 h2 g7 e3 f7 a3 f8Q a2 f6 e2 f7 e1N Qc5+ Nc6 f8R Nc2 Qc3 Na3 Qe1 d1N Nf3 Ne3 Nbd2 Nd5 Bd3 Ra7 Nc4 Nb6 Nb2 h4+ Kg2 Be6 Bg5 Bd5 Be7 h3+ Kg3 Qb8 Rd8 Rh6 Rf1 h1Q Bg6 h2 Kg4 Rh3 Nh4 Rd3 Rf6 Rd2 Kh3 Nh6 Qe2 Qe4 Re1 h1N g8Q Ng3 Qh2 Qc8+ Re6 Qe5 Re2 Bh1 Re4 Nh5 Qf7 Ra5 b8N Kb7 Qf5 Qd5 Qg4 Ne5 Nc6 Qc7 Na7 Qdc6 Nc8 Kb8 Red6 Ra7 Qe6 Nf4+
Q6n/bN1Q2Np/1qR1K2R/1PR2B1n/B1n2BN1/2r3qn/3np1P1/1r3k2 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 Bg4 axb5 f5 e4 fxe4 f4 g5 h3 gxf4 hxg4 Bg7 Ra2 Bh6 Ra1 Bf8 Kf2 Kf7 d4 Kg6 b4 Kg5 b6 a5 b5 c5 d6 e5 d7 c4 b7 c3 d5 e3+ Kf3 a4 Ke4 a3 d6 a2 Kd5 e4 Rh3 e2 Bb2 e1Q Be2 f3 Rh5+ Kf4 g5 Kg3 g6 Kf2 g7 e3 Rh6 c2 Nc3 c1N Ke6 Ne7 g8B Qb6 d8N Nd3 Na4 Nbc6 b8Q Nce5 Nc5 Nc4 Ncb7 Ng6 Rc1 a1N Be5 Nb3 Bf4 Ra1 Qa8 Rb1 Qd2 Be7 Bd1+ e2 Nh3+ Kf1 Nf2 Bh4 Ng4 Nf2 Qd4 Nbd2 Ba4 Nh3 Qg7 f2 Qd7 Bg3 Bf7 Rg8 Be8 Nh8 Bg6 Bh2 Bf5 Bg1 Rc2 Na3 Rc5 Nac4 Kf6 Re8 Ne6 Re7 Ng7 Re3 Rc6 Rc3 Ke7 Ne4 Ke6 Nf6 Qc7 Nh5 d7 Qd1 d8R Qd3 Qd7 Qg3 Qe8 Ke1 Rd7 f1N Rd5 Nfd2 Qd7 Kf1 Rc5 Qa6 Re5 Ba7 Rc5 Qb6
2N1R2n/2Kr1bR1/Q3Bn2/1B6/Q1Pq3k/p1P3p1/r2qRQqN/1r1q2N1 w - - 0 1 legal: proof: a4 c5 f4 b5 axb5 e5 d3 exf4 g3 c4 dxc4 f3 Bh6 f5 Bh3 f4 Nc3 f2+ Kd2 f3 Bf1 Bd6 Bg5 h6 Nb1 Bf4+ gxf4 hxg5 Kd3 Ke7 Kd4 Kf6 Kc5 d5 h4 a5 b4 g4 e4 g5 b6 g3 c3 g4 h5 a4 b5 a3 h6 d4 e5+ Kf5 h7 d3 e6 d2 e7 g2 e8B g3 b7 Kg4 f5 Nd7+ Kd6 Qe7+ Kc7 Qe3 b8Q Qh6 b6 Ra7+ b7 Qh2 f6 Ra8 f7 Ndf6 f8Q Ra4 Bb5 Kh5 Qa8 Ne7 b8R Ng6 Ra2 Be6 Re8 Kh4 Qa6 Bf7 Bd3 f1Q Bf5 f2 Be6 Rb4 Qda4 d1R Nd2 Rbb1 Rb2 Qd3 Nf1 Qd4 Re2 Rd2 Qc5 Ra2 Qf8 Rg8 h8N Rg7 Qc5 Qd2 Qca7 Qh3 Nh2 f1Q Q7b6 Qfd1 Qf2 Bg8+ Nf7 Nh8 Kc6 Qg4 Nd6 Bf7 Nc8 Qgd4 Kc7 Rh7 Nh3 Rg7 Rhe1 g1Q Re7 Qg2 Ng1 Bg6 Rd7 Rh7 Rg7 Bf7 Bh3 Rc1 Re8 Rb1 Be6 Rh5 Re3 Rd5 Re2 Rd7+
5b1B/q1R2n1k/3Nq1RN/4Rprb/3Pb2r/r1bP1B1Q/7p/1N2QBK1 w - - 0 1 illegal: No possible last move, all moves rejected
1r3B2/q1Q1NQ1N/n2q1RBK/1n2PN1r/2pP1r2/k1B4R/p2n4/r4R1b w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kd7 Kd2 a5 Ke3 c5 Kf4 h5 e4 f5 b4 g2 g6 h4 b6 g3 b7 h3 b5 c4 e5 h2 d6 a4 b6 Kc6 g7 Kb5 d7 Kb4 Nd2 a3 Bd3 a2 Qf1 Ne7 Kg5 f4 g8N f3 Bb2 f2 Bg6 Nd5+ Ne7 Nc3 Ne2 g1R Ne4 g2 N2g3 Na6 b8B Rh4 b7 Rf4 Nf6 Nb5 Bc3+ Ka3 Ngf5 Qf8 Bc7 Rb8 d8R Be6 Kh5 Bd5 Nh7 Qf6 Re8 Qd6 Rf8 Bc6 Kh6 Bd5 Qd3 f1N Qf3 Nd2 Rf6 Re1 Bb6 g1R Rc1 Rg5 Bc5+ Kb3 Rf1 h1Q+ Qh5 Qh3 Rh1 Qd3 Rh3 Bh1 Ra1 Reg1 Rf1 Qf3 Ba3 Qfc6 Qf3 Qb6 Qd5 Qa7 Qf7 Ra8 b8Q Ka4 Rf2 Ra1 Qc7 Rc8 Rf1 Rb8 Nc6 Qd7 Bf8 Qd6 Nce7 Kb3 Kg7 Ka3 Kh6 Rh5+
2k1b2r/q1N1K1R1/4q3/q2rprN1/Q1Bb4/Qp1Q4/B1rRPR1P/1N4n1 w - - 0 1 legal: proof: c4 a5 b4 axb4 a4 b5 f4 g5 fxg5 d5 cxd5 b3 Ba3 b4 Bb2 Ra6 Bc1 Ra8 g4 h6 g6 Kd7 g7 Rh7 g5 Ke8 g6 Rh8 Bb2 Nc6 Bf6 Nd4 Bg5 Nb5 axb5 hxg5 Kf2 Kd7 Kf3 e5 Kg4 c5 Kf5 c4 d4 g4 d6 g3 d5 b2 b6 c3 b7 c2 b8Q c1R Bg2 Qa5 Nh3 Nh6+ Kf6 Rc2 g8R Nf5 g7 Nh4 Rf1 Nf3 Ng5 Ng1 Ra2 Ba6 Qc1 Bb5 Qa7+ Kc8 Rf2 Be8 Be4 g2 Bd3 Rb8 Bc4 Rb5 Qce3 Rc5 Qa3 Rb5 Nd2 b1Q d7+ Kd8 Qa4 Qb3 Nb1 Bc5 Qa6 Kc7 d8N Bd4 Ke7 f5 d6+ Kb8 d7 f4 Qa3 f3 Nde6 Rd5 Rb2 Qa2 Nc7 Qb3 Qc6 Qa2 Qca4 Qb3 Rf1 f2 d8Q+ Kb7 Qd6 Kc8 Qg6 Qh3 Ba2 b3 Qd3 Rc1 Rd2 Rc2 Rf8 Qh6 g8B Qh3 Rfd1 f1R Rf7 Rf5 Rg7 Nf3 Re1 g1Q Rf1 Qe3 Rf2 Ng1 Bf7 Qh6 Bg8 Qhb6 Bf7 Qh3 Bg8 Qba7 Bf7 Rdc5 Bc4 Rd5 Rg8 Qh6 Rg7 Qe6+
2Q1B3/4n1bk/6NB/QbpqQ3/1q1Ppr1N/5BR1/3q1PqR/2KRnb2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 cxd5 f5 axb5 fxe4 Na3 a4 Nb1 Ra5 bxa5 Qd6 Qb3 Qd7 Qd1 Qd8 g4 Kf7 d4 Kg7 Kd2 h5 d6 e5 g5 c5 d7 a3 g6 a2 b6 h3 b7 h4 a6 h2 a7 e3+ Kc2 e4 a8Q h3 Qe1 e2 Qea5 e1Q Be2 Nc6 b8Q Ba6 Nf3 Nge7 Ne5 Qb4 Bf3 Rh4 Nd2 Rf4 Qab7 Bf1 Q7c8 Bb5 Qbc7 Kg8 g7 Kh7 Ng6 Ne5 Rb1 Nd3 Qe5 a1Q g8B+ Kh6 Bb3 Bg7 Bf7 Kh7 Be8 Qa2+ Kd1 Qab2 Rg1 h1B Rg3 h2 Ra1 Qc7 d8R Bg2 Rd6 Bf1 Rf6 h1Q Rf5 Qh3 Rh5+ Bh6 Rh4 Qf5 Rh2 Ne1 Qf6 Qcd7 Be2 Qh3 Qe5 Bg7 Nf3 Qc6 Nfh4 Rf6 Bh6 Rf4 Bf3 Qd5 Rb1 Q2c3 Rc1 Qe3 Ra1 Nd3 Kc2 Qg2 Rd1 Qe2+ Rd2 Ne1+ Kc1 Qd3 Rd1 Qdd2+
1RQ1R1N1/N1Qq1nr1/Q2PK1BP/3p4/q1qbN3/q4k2/3np1r1/3R2rB w - - 0 1 illegal: No extended proof kernel
6NQ/q1r2RrP/P2Q1K1B/qrpRB3/2N5/n1R2Qpn/3nn1b1/5Bk1 w - - 0 1 legal: proof: c4 d5 cxd5 h5 e4 f5 exf5 a5 d4 e6 g4 hxg4 b4 axb4 d6 c6 d7+ Kf7 d5 Bc5 d6 Bb6 Bg5 Kf8 Bc1 Bc7 dxc7 Ke7 Kd2 Kf6 Ke3 Kg5 Ke4+ Kh4 Ke5 b5 a4 g5 f4 b3 h3 Kg3 f6 Kf2 a5 b4 f5 g3 h4 b2 h5 c5 h6 g2 f7 b3 f8B g4 f6 g3 h7 Bb7 c8Q Qe7 d8R Ra7 a6 Nc6+ Ke4 e5 Kf5 e4 f7 e3 Rd2+ e2 Bh6 Nf6 f8Q Rg8 Na3 b1N Bb2 Rg7 Rd5 e1Q Be5 b2 Nc4 Na3 Nf3 g1N Nh2 Nh3 Rc1 b1R Rc3 Ne4 Qe6 Qc7 Qh8 Nd2 Qd6 Rb5 Kf6 Nd4 Qh5 Qa1 Qg4 Ne2 Qf3+ Ke1 Ng4 Qa5 Rc2 Ba8 Rg1 Rac7 Rc3 Qb6 Rg2 Qa7 Rf2 Bb7 Ke6 Bc6 Nf6 Ba8 Ng8 Bb7 Re3 Qc3 Red3 Qa5 Rc3 Ba8 Qh1 Bb7 Rf7 Bc6 Kf6 Kf2 Qe4 Kg1 Qf3 Bd7 Qh5 Bf5 Qf3 Be4 Qf4 Bh1 Qf3 Bg2
2Q4r/B1Q3Rp/R4P1q/1b1P4/Nkn2N1n/2rq1pn1/1Nq3B1/B1R3Kq w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 h4 gxh4 f4 exf4 e3 f3 Kf2 Bh3 Ke1 f2+ Ke2 Bc8 Kd3 f5 Ra5 f4 Kc2 f3 Ra3 Bh6 Ra1 Bf4 exf4 Qf6 Ne2 Qd6 Ng1 Qd8 Kd3 Kd7 Ke3 Kd6 b4 c5 d4 a5 g4 h3 f5 h2 f6 a4 g5 c4 b6 a3 b5 a2 g6 c3 b7 c2 g7 Ra6 b6 Ra7 Bb2 c1Q+ Nd2 Ra5 Nh3 Ra8 Bg2 f1N+ Kf2 Nh6 g8R Qc6 Nc4+ Kd7 d6 Ng3 Nf4 Nhf5 Qc2 Ra3 Rhc1 h1Q d5 Rc3 Rg6 Qh3 Kg1 Qf8 Rg4 Nh4 Rg7+ Ke8 Qf5 Nd7 b8N Ne5 b7 Bd7 Na6 Qc7 b8B Bb5 d7+ Kd8 Ne3 Nc4 Ba7 Qc8 Nc5 Kc7 Qc2 Kd6 Na4 Qc6 Nd1 Qcc8 Nb6 Kc5 d8Q Kb4 Qc7 Qcf5 Na4 Qd3 Rf7 Qh6 Rg7 Rb3 Bbd4 Ra3 Ndb2 Rc3 Qe2 Qc2 Qe6 Qd3 Qec8 Qc2 Rab1 a1Q Be5 Qa3 Ra1 Nf1 Nc5 Qab3 Ra6 Ng3 Nca4 Qd3 Bed4 Qbc2 Nd1 Ra3 Ba1 Rc3 Ndb2 Qh1+
r7/2B3P1/1pn1qkPq/1NQn1Br1/1B5Q/6Rq/Kb2n1p1/RN1RnQ2 w - - 0 1 legal: proof: e4 d5 f4 Kd7 c4 g5 fxg5 a5 cxd5 Na6 b4 axb4 d6 Kc6 d7 Nb8 g4 Kd6 d4 Ke6 g6 Kf6 d5 h5 g5+ Kg7 Qg4 hxg4 d6 b6 Na3 Bb7 Nb1 Bd5 exd5 Rh4 Kd2 Rh3 Ke1 Rh8 Kd1 c5 Kc2 f5 Kb2 e5 h4 c4 a4 e4 h5 g3 a5 g2 a6 c3+ Ka2 e3 a7 e2 Nf3 e1Q Ba3 f4 Rh3 c2 Bd3 c1Q Bf5 Qf6 d8R Qcc3 d7 Nc6 d6 Nge7 Rg3 Nd5 Nd4 f3 Nb5 f2 h6+ Kg8 g7 Kf7 h7 f1N Bg4 Nh2 Bf5 Qh6 g6+ Kf6 Bc2 Rc8 a8Q Qe6 Bf5 Nf3 Qa6 Ne1 Qa5 Rg8 h8Q Ra8 Qh7 Rh8 Qa6 Qce3 Qa5 Qh3 Qh4+ Qg5 Qc4 Rh5 Qf1 b3+ Kb2 Qf7 Bb4 Qh6 Ka3 b2 Ka2 Rg5 Qa3 Rb8 Qe3 Qe7 Qc5 Qe2 Rc8 Qe6 d8B+ Be7 Bc7 Bf8 d7 Ra8+ Kb3 Bd6 d8Q+ Be7 Qh8 Bd6 Rd8 Be5 N1a3 b1N Ka2 Bb2 Qh7 Nd2 Rd7 Nb3 Qh8 Nf4 Rdd1 Nd5 Qh7 Nbd4 Qh8 Rg8 Nb1 Ne2 Qh7 Q6h4 Qh5 Rc8 Qg4 Qh6 Qh4 Ra8+
NK1B1k2/1pQ1q1nb/5n2/1QnQ1p1R/R3bq1P/3nN3/R3P3/3B1rbN w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 gxh5 e5 cxd5 Bd7 f4 exf4 a5 Qc8 a6 Qd8 a7 Na6 Kf2 Bg4 Ke1 Rb8 axb8Q Bc8 Kf2 g5 Kf3 c5 Ke4 f5+ Ke5 f3 h4 b3 d4 f2 d6 b2 h6 c4 h7 c3 d7+ Kf7 d5 g4 d6 c2 Bg2 f1N Be4 g3 Qc7 g2 Bg5 c1Q Qa4 Kg7 Ra2 Ne3 Na3 b1B Nc2 Nd1 Qb5 Qe3 Nh3 g1N Nf2 Nh3 Ke6 Qc1 Ne3 Nf6 Bc2 Rg8 h8R Nb2 Rh5 Nd3 Bd1 Be7 Rg1 Kf8 Rg4 Qe8 Rga4 Qc4+ Qd5 Qf4 Nh1 Qd8 Qcc4 Qc7 Qcb5 Bd8 Ra1 Qc5 R1a3 Bb6 Ra2 Qcb4 Nc2 Bg1 Ne3 Kg7 Ke7 Nac5 d8Q Be6 d7 Bf7 Qb8 Bg6 d8N Bh7 Qbe5 Qbe4 Kd6 Kf8 Kc7 Bc2 Qed6+ Qe7+ Kb8 Rg6 Qc7 Rg7 Nf7 Rg6 Nd6 Rg7 Bh6 Ng5 Nc8 Nge6 Bg5 Rg6 Nb6 Ng7 Bh6 Rg2 Na8 Rf2 Bg5 Rf1 Qcd6 Nc1 Q6e5 Be4 Qc7 Ng4 Bf6 N1d3 Bg5 Qee5 Bd8 Nf6 Ra7 Qd6 R7a4 Qe7
2b3nN/2Q1Qb1B/NRRrRpBP/2B1P1k1/rnr1np2/3r1Q1n/8/1K6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Qd3 cxd4 Qd1 h4 Na3 g5 Qd3 Bb4+ Kd1 Be1 Qd2 Bg3 Nb1 Qf6 Qd3 Qh6 Kd2 Qh5 gxh5 g4 Kd1 Bf2 Qd2 g3 Qd3 Be3 Ke1 g2 Qd1 Bf2+ Kd2 Bg3 hxg3 Nc6 Ke1 Nb8 c4 Ke7 Kd2 Kf6 Kc2 d5 e4 a5 b4 a4 c5 a3 e5+ Kg5 c6 h3 g4 h2 c7 a2 h6 f6 b6 Na6 b7 Rb8 b5 Kg6 b6 Ra8 b8R Rh7 g5 Nc5 b7 Na4 Ba3 Ra5 Qf3 Rf7 Nh3 g1N Bc5 Ra7 Nd2 Bf5+ Ne4 Bc8 Bd3 Nc3 Kc1 Kf5 g6 Ra4 Nhg5 Nh3 g7 Kg6 Rb1 a1N Rb6 Nc2 Re6 Nb4 Rf1 Rd7 Nf7 h1B Nh8+ Kf5 Kb2 Rd6 Rc1 Rc6 Bb1 d3 Bc2 d2 Bd3 Ne2 Kb1 d1R Bc2 d4 Bd3 Bd7 c8Q Ng3 Qe8 Bc8 Bc2 d3 Qf7 Ne7 g8B d2 Qe8 Rd6 Bf7 Ng8 Qe7 Bg2 Bf2 Bf1 Nc5+ Kg5 Na6 Bd7 Bh7 Be8 Nc5 Ne4 Bfg6 Bf7 Bd4 Bb5 Na6 Bd7 Bf2 Rh1 Bb6 Rh2 Rc6 Bc8 Bc5 Rf2 Ra8 Re2 b8Q Re3 Qba7 Rc3 Rb8 Rc4 Rbb6 d1R+ Kb2 Na2 Qac7 R1d3 Kb1 Nb4
1B1n2Q1/2RRrQ1q/4N3/B1n1kqp1/5rq1/Q1pn1P2/q5Pr/1RKN2B1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 f5 d4 g6 e4 fxe4 h4 Kf7 h5 Nc6 h6 Nb8 d6 Ba6 d5 Ke8 Bc4 Bg7 hxg7 bxc4 Qd3 Nf6 Qd1 Bb5 axb5 Ng8 Kd2 Kd7 b4 c5 f3 a5 b6 h5 b7 e5 b5 e3+ Kc2 c3 b6 h4 Ra2 a4 Ra3 c4 Ra2 g5 Qe2 a3 Bb2 e4 Qd1 e2 Qd2 e1N+ Kd1 c2+ Kc1 h3 Qf4 e3 Qe4 h2 Nh3 e2 Qf4 Qf6 Nc3 Ra4 Nd1 Ne7 g8Q Na6 b8B Nc6 b7 Nd8 Bd4 Qf5 Bg1 Nc5 Rb2 a2 Rb1 a1Q Qe3 Qfe5 Nf4 Qa2 Ne6 Qf5 Qa3 Qg4 Bc7 Rh3 b8B Ned3+ Kd2 e1R Ba5 Rh7 Rc1 Re7 Qf7 Re4 Rb1 Rf4 Rc1 Kc8 d7+ Kb7 d6 Kc6 Bf2 Kd5 Bg1 Ke5 Rb1 Qf5 Rb7 Rh4 Rc7 c3+ Ke2 Nc6 d8Q Raf4 Qdg8 Nd8 d7 c1Q+ Nb2 Qe3+ Kd1 Qee4 Kc2 Nc6 d8R Qd4 Rdd7 Nd8 Bf2 Rh3 Rb1 h1Q Bg1 Rh6 Kd1 Qh5 Kc2 Qde4 Kd1 Qhg4 Kc2 Rh2 Kd1 Nf2+ Kc1 Qh7 Nd1 Qeg6 Rb2 Q6f5 Rb1 Nfd3+
r1n3q1/2n3R1/Brn2NP1/2nB1p1Q/1R1rP1p1/1K5q/1B2NQq1/3Q2Nk w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 h4 Bb7 Ra6 Be7 Ra1 Be4 h5 Bg6 Rh4 f5 Rh1 Bf6 gxf6 Bf7 Bd2 g5 Bc1 Bg6 hxg6 Qc7 Nd2 Qb6 Nb1 Qd8 Kd2 a5 c4 d5 Kc2 Kd7 e4 Kd6 b4 Ke5 b6 h5 f7 f3 f8N h4 b7 a4 b5 a3 c5 f2 c6 d3+ Kb3 a2 c7 g4 c8B d4 b6 h3 Bg2 f1N Ne6 h2 Bg5 d2 Kb2 d3 Nh3 Ne3 Nf8 Nd5 Be6 Nge7 Kb3 Nbc6 b8Q+ Nc7 b7 Nc8 Nh7 Qg8 Nf6 Rh7 Re1 h1Q Bf1 Qg2 Ng1 Rh3 Bh4 Kf4 Bd5 Rh2 Bg5+ Kg3 Nc3 Rh1 Qa7 Kh2 Rc1 a1Q Nce2 Qe5 b8Q Qeg3 Qf2 Qh3 Qc2 d1N Bh4 Nb2 Qd1 Ra1 Rc4 Ra7 Rb4 Ra8 Qba7 d2+ Qae3 Nd3 Qh6 Nd6 Qh5 Nc8 Rb7 Ne8 Rg7 Nc7 Qa1 d1R Qa4 Rd2 Rb1 Rc2 Bg5 Rc4 Bc1 Rd4 Bb2 Ncb4 Qd7 Nc6 Ng3 Ne1 Ba6 Nd3 N1e2 Rc1 Ng1 Rc2 N3e2 Kh1 Rc1 Rc5 Rc4 Rb5+ Rb4 Rb6 Qe8 N6e7 Qa4 Nc6 Qa1 Nd6 Qc1 Nc8 Qd1 Nc5+
k3qRQ1/1RnR4/1q4n1/n1p1r3/Q2N1pqN/4N1PP/KQ1b2q1/3nB2B w - - 0 1 legal: proof: e4 d5 exd5 h5 c4 b5 g4 hxg4 a4 bxc4 d4 Kd7 d6 Ba6 d5 Bb5 axb5 Ke8 Bg2 g5 Bf4 g3 Qe2 g4 Bf1 g2 Qd1 g3 Ne2 g1N Bc1 g2 Ra2 Kd7 Ra4 a6 Ra1 Kc8 Bf4 Kb7 d7 Kb6 Bh6 Kc5 Bc1 Kd6 Nec3 a5 Ne2 Ra7 Bg5 Rb7 Be3 Rh5 Bc1 Rh8 Qc2 Rb6 Qa4 Ra6 Qd1 Ra8 Kd2 Rh3 Ke1 Rg3 fxg3 Ra6 Na3 Kc5 Qd3 Rh6 Nb1 Rh8 Qd1 Kd6 Kd2 f5 Kc3 c5 b4 Kc7 Kb2 Kb7 d6 e5 b6 c3+ Ka2 e4 h3 c2 b5 e3 Na3 a4 Nc4 a3 Rb1 Na6 Bd2 c1Q Nd4 e2 Be1 Qf4 Nf3 Rh5 Qa4 Bh6 Nh4 Ka8 Ne3 Ne7 Rd1 Qc7 d8N Ng6 d7 Qg4 Ne6 Qa7 Nd4 Nc7 Bf2 e1Q d8R+ Kb7 Ra8 Ne2 Rf8 g1Q Rd2 Qg2 Rb2 Qb4 Be1 Qb8 Rb3 Qd8 Rb2 Kb8 b7 Qe8 Rb3 Qa5 Rb4 Qb6 Rb1 Qh2 Bg2 Bg5 Bd5 Qg2 Rf1 Bh6 Rf4 Bg5 Re4 Bh6 Re7 Rg5 Rd7 Nc3+ Kb3 a2 Be4 Qd2 Bh1 Nd1 Rb2 a1N+ Ka2 Qb4 Rb1 Nb3 Rb2 Na5 Rb3 Ka7 Rb1 Qc6 b6+ Ka6 b8Q Qg2+ Rb2 Rh5 b7 Qb6 Qd8 Ka7 Qf6 Bg5 Qe6 Bf4 Qg8 Rg5 Nf1 Bc1 Ne3 Bd2 Rb4 f4 b8Q+ Ka6 Rb2 Re5 Rb3 Qbe6 Qbb5+ Ka7 Qe2 Qf6 Rb7+ Ka8 Qeb5 Qd6 Qb2 Qb6
N7/1QpbkP2/2r1p3/P2rRn2/3RQnNp/1B1b4/BRQ4b/qNn4K w - - 0 1 legal: proof: h4 f5 a4 g5 hxg5 a5 e4 d5 exf5 Qd7 c4 Qd8 b4 axb4 Ba3 bxa3 cxd5 Qd7 Be2 Qd6 Bf1 Qd8 d4 b5 f4 h5 Kf2 a2 g4 b4 Kg2 h4 d6 b3 a5 b2 d7+ Kf7 g6+ Kf6 g7 Bb7+ d5 Na6 g5+ Kf7 f6 Rc8 f5 Bc6 Qc2 Ba4 d6 Nh6 Nh3 Bb5 Nf2 Rg8 Ng4 Bc4 Rh2 Qe8 d8Q Ra8 d7 Rc8 Kh1 Be6 Bc4 Rb8 Qc8 Rb4 d8R Qa4 Qb7 Rh8 Bb3 Rc4 Rd4 Nb4 g8B+ Ke8 g6 Rc6 g7 Bd7 Rhd2 Nd5 f7+ Kd8 f6 Nf4 Re2 Nf5 Re5 Qa3 Bh7 e6 g8Q Qa4 Qg6 Bd6 f8N Qa3 f7 Ke7 Nc3 Rg8 Rb1 a1N Ba2 Nb3 Qe4 Be8 Nd7 Nc1 Nb6 Bd7 Na8 Rd8 Qc2 Ng7 Qge4 Nf5 Ra1 Qa4 Nb1 Qa3 Bb3 Qa4 Ra2 Qa3 Nc3 b1B Rb2 Qa1 Bd5 Ba2 Nb1 Bc4 Bg6 Bf1 Ba2 Bd3 Bh5 Re8 Ne3 Bc5 Qcb3 Bb6 Ra4 Rd8 Bd1 Be8 Ng4 Bg1 Rd4 Bh2 Qc3 Rdd6 Bdb3 Rd5 Qc2 Bd7
3QN3/4Brp1/2QB1R2/r3qn2/NKPqb1Rb/2NBpQnk/2pP3r/8 w - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 f5 gxh5 d5 Qf3 d4 Qc3 dxc3 exf5 cxb4 a4 Bb7 axb5 Bc8 f4 Kf7 h4 Kf6 b6 a5 b7 e5 h6 b3 h7 c2 h5 a4 h6 b2 Rh4 e4 Ke2 a3 Rg4 a2 Nc3 b1R Na4 e3 Ba3 Nd7 Kd3 Qe7 Kc3 Nc5 b8N Rc1 Na6 Bb7 Kb4 Rd8 Bd3 Bc6 Ne2 Bd5 Nc7 Rg1 Nec3 Ra8 Ne8+ Kf7 f6 Ke6 f7 Be4 Rf1 a1Q f5+ Ke5 f6 Ra5 Rf3 Rf1 Rf2 Qa7 Rff4 Be7 f8B Qd7 f7 Bh4 Be7 Qd4 f8Q Ke6 Bd6 Ne7 Rf2 Qe5 Qf3 Nf5 Be7 Bc6 Bd6 Ne4 Be7 Neg3 Bd6 Rg8 h8Q Be4 h7 Rf8 Qg8+ Rf7 h8Q Rh1 Be7 Qd4 Qh6+ Ke5 Qc6 Rh2 Qd1 Nd6 Rf6 Ndf5 Rgg6 Kf4 Rg5 Re2 Rg4+ Kf3 Qf8 Kg2 Qh8 Rf2 Qf3+ Kh3 Qg8 Rf8 Qgd5 Rf7 Qd8 Re2 Kb3 Rg2 Bad6 Rh2 Kb4 Qe5 Nb1 Qad4 Nbc3 Rd5 Ka3 Rc5 Kb4 Ra5
1k2K1B1/2bQQ3/2q1BBq1/8/1P1rbR1R/1np2R2/prP1Q2p/1N1brN2 w - - 0 1 legal: proof: d4 b5 a4 g5 axb5 e5 dxe5 f5 e4 fxe4 h4 Bd6 g4 Bc5 f4 gxf4 g5 Nc6 h5 Nce7 Qe2 Ba3 Qd1 Ng6 hxg6 Bf8 Kd2 h5 Kc3 c5 Kc4 d5+ Kb3 Kd7 Ka4 Kc7 b4 a5 e6 d4 b6+ Kb8 Kb5 a4 Kc6 a3 e7 e3 e8Q c4 g7 e2 b7 e1R g6 h4 Qe5+ Qd6+ Kb5 h3 Qf3 d3 Ne2 c3 Qe7 d2 Ng3 d1B Bc4 Rh4 Nf1 Nh6 g8R Bf5 g7 Be4 Be6 Nf5 Qe2 f3 Bg5 f2 Bf6 h2 Rh8 a2 g8B Ra3 Rh6 Rg4 Rh4 Rb3 Rg1 Qc7 Rg3 Rb2 Rf3 Qc8 Qd7 Bd6 Rf4 Bc7 Kc5 Bd3 Kc6 Qe8 Rf3 Qg6 Qe7 Nd4+ Kd7 Nb3 Rf4 Qe4 Ke8 Qc6+ Qd7 Ka7 Rf3 Rd4 b8Q+ Ka6 Qb5+ Ka7 Qc5+ Kb8 Qe7 Be4 Ne3 f1Q Rff4 Qh1 Nf1 Qg2 Nfd2 Qg5 Na3 Rg1 Rc1 Qg4 Nab1 Qf5 Qg4 Be2 Rcf1 Bd1 Qe2 Rh1 R1f3 Re1 Nf1 Qg6+
2n2qQ1/2B2bQN/k4NK1/nb1p1Nnr/5B2/bB2pq2/p1P1Q2P/3R2R1 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 b5 e4 f5 exf5 c5 axb5 cxd4 Ba3 a4 Bc1 Ra5 bxa5 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 e5 Kd3 g5 Ke4 g3 f4 g2 f6 a3 Kf5 d5+ Kg6 Kd7 a6 Kc7 f5 Kb6 f7 e4 f6 d3 a7 a2 a8Q g4 Qe2 d2 Nc3 d1B Nf3 g1N Nd4 g3 Be3 g2 Bf4 e3 Nf5 Be6 Ne4 Ba3 f8N Nc6 f7 Na5 Nh7 Nh3 f8Q Ng5 Nef6 g1Q Qg7 Qg4 Rg1 Qf8 Qe8 Qf3 Bc7+ Kb7 b6 Nc4 Qd8 Ka6 b7 Ne7+ Kh6 Qf4 b8B Nc8 Kg6 Qf3 Qe8 Qd6 Qeg8 Qf8 Qd2 Be2 Rd1 Bd3 Qe2 Na5 Bf4 Bb5 Bbc7 Bb2 Qf2 Bc1 Bc4 Ba3 Qe2 Qe7 Nf8 Rh5 N8h7 Qf8 Bb3 Bf7+
3b1rnn/2k2B1q/6R1/1p1B1p1P/2n2PQB/qp3N1N/r3Q2R/2R2QKr w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 b6 e4 Ra3 d6 Kd7 e5 Ke6 d5+ Kf5 e6 Bd7 exd7 Ra8 Ke2 Ke5 Ke1 Kf6 h4 Ke5 a4 g5 a5 f5 a6 c5 a7 b3 h6 g4 h7 e6 Rh2 g3 Bg5 c4 Qg4 g2 Nd2 b5 Nh3 c3 Rc1 c2 Bc4 Qc7 d8Q Nc6 d7 Kd6 f4 e5 Kf2 e4 Qe8 e3+ Kg1 e2 d8R+ Qd7 Nf3 e1N Qe2 Kc7 h5 Be7 Bh4 Nd3 d6+ Kb6 Rf8 Nce5 Rf6 Nf7 Rg6 Bd8 Bd5 Qe7 d7+ Kc7 Qf1 Nde5 Qe2 Rc8 a8B Nc4 Be6 Rb8 Bad5 Ra8 Qf1 Ra2 Qe2 Nf6 Qf1 Re8 h8Q Ng8 Qb2 Nh8 Bf7 Rf8 Qe5+ Qd6 Qee2 Qa6 Ra1 c1Q Rb1 Qca3 Rc1 Bf6 Nf2 Qb7 Nh3 Kd6 d8Q+ Qd7 Qa8 Kc7 Qa4 Bg5 Qb4 Bd8 Qbe1 Qde7 Kf2 Qd7 Qh1 Qde7 Qef1 Qd7 Kg1 Qde7 Be8 Qh7 Bef7 gxh1R+
B6B/q3rPRP/k1b4Q/B1n4b/3N3b/2R1NqrK/p2p2pQ/1R2N1r1 w - - 0 1 illegal: No possible last move, all moves rejected
3Q2q1/PQr1B2R/R1r3R1/1K1p1p1p/4knr1/1rr1b1Bn/1PN3N1/4B1Q1 w - - 0 1 illegal: No proof kernel
1q3n1r/1N2rBpb/1B1PQ3/4n1KR/PQ1p1nrR/3k4/1R1p4/rN1NB3 w - - 0 1 illegal: No possible last move, all moves rejected
kN2Q2n/1pp3Q1/2Q1n3/BN1pRbPr/4nB1P/nNBq1K2/4R3/r2q4 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 cxd5 h5 gxh5 e6 d6 Ra6 d7+ Ke7 Nc3 Ra4 Nb1 Ra8 f4 g5 d4 g4 d5 Bg7 d6+ Kf8 Bg2 Bh6 Bd5 Bg5 fxg5 exd5 Kf2 f5 a4 b3 e4 f4 h4 b2 a5 f3 a6 Ne7 h6 Nec6 a7 Kf7 e5 Ke6 h7 Re8 h8B Nb4 Nd2 b1N Qc2 N8c6 Nb3 Qf6 d8N+ Kd7 Ne2 Ne7 Nc3 Ng6 Nc6 Na6 Ra2 Nc5 Bf4 Na3 Re1 Qf5 Nb5 Qd3 Nb8+ Kd8 d7 Ne6 Bg7 Rh8 Qc6 Rh5 Rae2 Nh8 Kg3 f2+ Kg2 Nd4 e6 f1N Re5 g3 R1e2 Nd2 Bf8 Nab1 Bb4 Na3 Ba5 Ne4 Qc4 Ke7 d8B+ Ke8 e7 Ne6 Qc6+ Bd7 Kh3 g2+ Kg4 g1Q+ Bg3 Qdd4 Kf3 Qgd1 Bf4 Nf8 Qh6 Bf5 Qg7 Qc4 Na6 Kd7 e8Q+ Kc8 Qc6 Ne6 Bf6 Rb8 a8Q Qcc2 Qa7 Ra8 Qe3 Qcd3 Nb8 Ra7 Be7 Ra8 Beb4 Ra6 Bc3 Ra7 Nd7 Ra6 Ndc5 Kb8 Nd7+ Ka8 Nb8 Ra7 Na1 Nb1 Nb3 Nd6 Bb6 Nd8 Re4 Ra1 Bba5 Na3 Re8 Q3d2 Qe6 Ne4 Qef7 Q2c2 Re5 Ne6 Qfe8 Qcd3+
rbB2qB1/2n1p3/1p2b2P/1q1R1qP1/RN1N1B1k/1R6/Q1q1p2K/q4NQ1 w - - 0 1 legal: proof: c4 a5 g4 h5 b4 axb4 e4 f5 h3 fxe4 Nf3 d5 cxd5 g5 Ng1 Ra6 Qc2 Rah6 Qb3 h4 Qd1 Rh5 gxh5 g4 Qe2 g3 Qd1 Nd7 Ba3 Ndf6 Bc1 Ng4 hxg4 Rh7 Bc4 Rh6 Bf1 Rh8 f4 Kf7 a4 Kf6 d4 c5 a5 b6 d6 b3 d5 h3 f5 c4 h6 g2 Kf2 b2 Kg3 c3 d7 c2 d6 e3 a6 Kg5 f6 h2 a7 Bg7 a8B Qe8 d8N Bd7 f7 Bc3 f8Q Qg6 Nc6 Bf6 Nd2 b1Q Bc4 e2 Nb4 Ba4 d7 Qf5 d8R Bb3 Ra4 Be5+ Kh3 Bc7 Rd5 Nf6 Qf7 Bb8 Bb7 Ne8 Bc8 Nc7 Qe1 Qb2 Qg3 Qbe5 Nf1+ Qef4 Bd2 c1Q Qe1 Qc2 Qg8+ Kf6 Nf3 g1Q Nd4 Q4e5 Qc1 Qgf2 Bf4 Ba2 Rg1 Qf3+ Rg3 h1Q+ Nh2 Qf2 Rb3 Qhe1 Qe3 Qa1 Qg3 Qf3 Nf1 Qf2 Qg1 Qf3+ Bg3 Qf2 Qe6+ Kg5 Qf7 Q2f3 Kh2 Re8 Bf4+ Kh4 g5 Rg8 Rd6 Qb5 Qd5 Rd8 Qa8 Qf8 Bg8 Qfe4 Rd5 Qef5 Qc6 Re8 Qc3 Rd8 Qb2 Re8 Rd3 Bb3 Qa2 Bc4 Rb3 Rd8 Rc5 Be6 Rd5 Ba7 Ba6 Ra8 Bc8 Bb8
Q1bnQ3/1P2b3/2q3b1/1qPk2BR/4n1NN/pp3Kp1/2BB2R1/3Q1qqR w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 g4 h5 Be2 hxg4 Bf1 b4 b3 a5 Bh3 g5 Bg2 Ra7 Bf1 Rb7 Qd2 Rb5 axb5 a4 Qe2 a3 Qd1 Rh6 Bf4 Ra6 Bc1 Ra4 bxa4 Bg7 Nf3 Bh6 Ng1 Bf8 Ke2 Kf7 f4 e5 c4 d5 h4 b3 h5 g3 f6 Ke6 c5 e4 a5 g2 f7 e3 a6 d3+ Kf3 d4 b6 d2 f5+ Kd5 f6 d3 a7 e2 a8Q+ Kd4 b7 e1Q h6 Na6 h7 Qd7 h8R Nc7 Nc3 Qc6+ Ne4 Be7 f8B Kd5 f7 Nf6 Ra2 Ne6 R8h5 Nd8 Nf2 Ne4 Bh6 Qb5 Be2 Qf1 f8Q Qc6 Qe8 Qb5 Qc2 d1Q Bd2 Qa1 Bd1 Qf6+ Ke3 Qfc6 Nf3 g1Q Nh4 Qc7 Kf3 Qcc6 Ba5 d2 Qc1 Ke5 Bc2 Kd4 Qd1 g4+ Kf4 g3 Bg5 Kd5 Kf3 Bf5 Qe2 d1B Bad2 Qe1 Ng4 Bg6 Bb1 Bc2 Qd1 Bf5 Rb2 Bc8 Ra2 Bd3 Bc2 Qef1+ Nf2 Qd7 Bc1 Qa4 Bb1 Nc3 Re2 Qa5 Bc2 Qab5 Bcf4 Qdc6 Bd2 Qe1 Ng4 Bg6 Reh2 Ne4 Rg2 Qef1+
1R2NQNk/1b1p1brp/3n1n2/8/B4KRP/2b1B3/p1Qb1QPn/2B3nR w - - 0 1 legal: proof: e4 a5 b4 b5 a4 f5 c4 g5 c5 f4 axb5 a4 b6 c6 b5 cxb5 d4 b4 f3 Ra5 c6 Rc5 dxc5 b3 Kd2 Qc7 Ke2 Qe5 Ke1 Qf5 exf5 g4 Bd3 gxf3 Bc4 Na6 Bf1 Nb8 Kd2 Kf7 h4 Kg7 b7 e5 c7 a3 c6 e4 Nh3 f2 Bd3 f1B Qe1 f3 Ke3 b2 Bb5 f2 Ba4 Nf6 Nf4 Rg8 Nd2 b1N Nc4 Bb4 Nh5+ Kh8 Kf4 e3 Nd6 e2 Ne8 Na6 b8R Bb7 c8Q Rg7 c7 Nc3 Rb1 Ba5 Rb4 a2 Qd8 Nc5 c8Q N5e4 Be3 Ng4 f6 Nd6 f7 Nf6 Rd4 Bb4 f8B Ba5 Qd2 e1B Qc2 Bd2 Qc5 Bc4 Qdc8 Nfe4 Nhf6 f1N Ng8 Nh2 Be7 Bb3 Bg5 Bf7 Qd8 Bb4 Qe7 Nf6 Qf8 Bc1 Qf2 Bd2 Qf5 Ba5 Qc2 Ne2+ Ke5 Be1 Bc1 Beb4 Rg4 Bd2 Be3 Ng1 Kf4 Bac3
b7/Bp1Q2PR/1b2Np1R/1Nrq1b2/1K3Qp1/1R1B3P/1r4B1/1r1rb1kN w - - 0 1 illegal: Other
1r1Q3B/N1R2rN1/1qpppbPQ/P2r4/3N3B/1p2r1Bk/2RnQ2n/2K5 w - - 0 1 legal: proof: d4 a5 h4 b5 b4 axb4 c4 e5 dxe5 g5 hxg5 b3 Qd6 b4 Qd1 Ba6 e4 Ke7 e6 d6 e5 Bb5 cxb5 Ra3 Bc4 Ra8 Bd5 Ke8 e7 Kd7 e8N Kc8 Bc4 Kb7 e6 Kb6 e7 Kc5 Be6 fxe6 Kd2 Kd4 f4 Ke4 g4 h5 a4 c6 g6 b2 b6 h4 g5 Kf5 b7 h3 a5 h2 g7 b3 g6 Qd7 Nc3 b1R Nge2 Kg4 f5 Kh4 f6 Na6 b8B Kg4 f7 Rh7 Ra2 Nc7 Nd4+ Kh3 Ba7 Qc8 Rc2 Qa6 Bb2 Nd5 Ncb5 Rh5 Qe2 Ngf6 g8Q Rf1 Ng7 Ne3 e8Q Re5 Qd8 Be7 f8B Nfg4 Qh8+ Rh5 Ba1 Rb8 Qh6 Bf6 Be7 Qb6 Bb2 Rf5 Kc1 Nc4 Rf1 h1R Ba1 Be5 Bh4 Nd2 Bg3 Rh2 Rf2 Rf8 Rf7 Bf6 Rc7 Rf7 Bh4 Rd5 Bc3 Ne4 Bce1 Nd2 Beg3 Qa6 Bc5 Qb6 Na7 Rf2 Bb4 Rf3 Bc3 Nh2 Ngf5 Qb4 Ndb5 Be7 Bh8 Re3 Ng7 Bf6 Nd4 Qb6
bB4B1/B1P1kp2/2Q1b3/3Rr2N/p4QRp/P3p3/R1qnb2K/b1N1n1N1 w - - 0 1 legal: proof: e4 d5 h4 Kd7 c4 g5 cxd5 gxh4 b4 c5 bxc5 Nf6 d6 Kc6 d7 Ng8 d4 b5 Kd2 a5 f4 Qb6 f5 Ra6 e5 Kd5 f6 Ke6 Kc2 Kf5 Kc3 Qxf6 d5 Rd6 Qd2 Kg6 Qd1 Qf2 exd6 Kf6 Kd3 h5 Ke4 e5 d8Q+ Ne7 g4 h3 d7 b4 d6 a4 g5+ Ke6 a3 h4 c6 b3 g6 b2 g7 h2 g8N Qb6 Kf3 e4+ Kg2 Bh6 Qd4 Qb4 Q8b6 Bd2 d8B Ng6 d7 Qc4 Nc3 b1B Nce2 Qa2 Nf6 Re8 Nh5 Ne5 Bc7 Nc4 d8R Na6 Rd5 Nc5 Bb8 Ke7 c7 Bc3 Be3 Nd3 Qc6 Nd2 Nc1 Qc2 Ra2 Be6 Qe5 Bb2 Qf4 Ba1 Bea7 e3 Be2 Bb2 Bd1 Ba1 Bg4 Ne1+ Kh3 Bc8 Bf5 Ba6 Bh7 Be2 Rb2 Ba2 Bg8 Bac4 Ra2 Bb3 Nf3 Bbc4 Rg1 h1B Rg4 Bb3 Ng1 Bhf3 Ra5 Be6 Kh2 Bh1 Qcc4 Ba8 Qc6 Rd8 Rb5 Rd5 Rc5 Rg5 Rd5 Re5
q1b4R/p3nB1N/PRN2B2/2R2p2/N2PQnq1/r3p1q1/Q1n2p2/BK4k1 w - - 0 1 legal: proof: e4 c5 h4 g5 b4 b5 c4 d5 cxd5 c4 d4 Na6 f4 gxf4 g4 Kd7 g5 Ke8 g6 Bh6 e5 Bg5 hxg5 Rb8 Rh6 Rb7 Rh1 Rc7 e6 Rc5 bxc5 Bxe6 Qh5 Bf5 Qd1 Bc8 Kd2 Kd7 Kc2 h5 a4 f5 g7 e5 a5 h4 g6 Qc7 d6 Ke6 d7 Kd5 d8B Ke4 c6 c3 Be2 b4 Bh5 h3 Bf6 f3 Bfg5 h2 Nh3 f2 Bb2 Ne7 g8Q Bd7 g7 b3+ Kc1 c2 Bf6 Ke3 Qg4 e4 Ng5 Nb4 a6 Qe5 Bg6 Rh3 c7 Rg3 Qh4 Ke2 c8R Be6 Rb8 Bc8 Ra5 Re3 Rb6 Qg3 Be8 Rd3 Bc3 e3 Ba1 Rc3 Kb2 c1N Rc5 Rd3 Qe6 Rc3 Bf7 Ncd3+ Ka3 b2+ Qb3 Nbd5 Ka2 Ne1 Qf4 Rd3 Qe5 Nf4 Nc3+ Kd2 Na4 Ke2 Nh3 Kf3 Ng5+ Kg2 Qee6 Neg6 g8N b1Q+ Ka3 Qc1+ Ka2 Qd1 Ne7 Qdg4 Kb1 Nc2 Qa2 Ra3 Qed5+ Q3f3 Qe5 Qa8 Nc6 Ne7 Re1 h1Q Qe4+ Kh2 Rf1 Qhf3 Rh1+ Kg2 Rh8 Kg1 Nh7 Qfg3
2k1rR2/r5BB/2PR1QNK/4bppr/1q1p3Q/1N4P1/pr1Bn1r1/2N4R w - - 0 1 illegal: No possible last move
2qRb2r/2Q1R1bQ/1RqN2nK/8/3B1r2/1B2NqnP/2qnP3/2kNb1Bq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 g5 b6 f5 h3 a5 b5 c5 b7 f3 Ke3 c4 b6 a4 Ra2 a3 Bb2 c3 Qc2 f2 Qd1 f4+ Ke4 g3 Nd2 g2 Qe1 g4 Ndf3 g3 Qb1 c2 Nh4 c1Q Ngf3 g1Q Ne1 f3 Nhg2 Nh6 Nd3 Qc2 Kf4 Nd7 Ne3 Ne5 Bg2 f1N Nf2 Bg7 Nfd1 f2 b8Q+ Qdc7 Kg5 Ng6 b7 Bd7 Qa7 Raf8 b8B Rf4 Qa5 Qh2 Ba7 Q7c6 Be4 g2 Qc7+ Ke7 d6+ Ke6 Rg1 Be8 d7 Nd2 d8R f1Q Ba1 Nf5 Rb2 a2 Rb6 Qh1 Bc3 Qb2 Bc2 a1B Ba4 Qf3 Bb3+ Nc4 Rf1 Ng3 Rf2 g1Q Rg2 Nf8 Qh7 Qc2 Bb2 Ng6 Rf2 Bf6+ Kh6 Bh4 Rg2 Kf6 Rf2 Qe1 d5+ Qec3 d6 Ke5 d7+ Ke4 Rf1 Nd2 Rg1 Q3c4 Bd4 Ngf1 Rg5 Be1 Rf5 Q4e6 Rf7 Ng3 Re7 Bb2 Ra8 Bc3 d8N Bb2 Nb7 Ba1 Be5 Qeg4 Rd8 Qc8 Bg7+ Be5 Nd6+ Kd4 Nf2 Kc3 Bf6 Kb2 Nfd1+ Kc1 Bg7 Bb2 Bd4 Ba1 Bf6 Q6e4 Ng2 Bb5 Rb8 Be5 Bg1 Qa4 Nge3 Be8 Rb6 Qac6 Bg7 Bd4 Bf6 Bc5 Bc3 Bd4 Ba1 Be5 Bd4 Bg7+
2B5/N1b1q1qk/Q1KQ1Rr1/RN2BnBb/2PrR2b/6Q1/P1bn1b2/4n2q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 b5 Ke4 e5 Kd5 g5 f4 Kg7 c4 b3 h4 g4 f6+ Kh7 h6 b4 f7 d3 f5 d2 h5 b2 f6 g3 Bg2 e4 Rh4 e3 Rf4 b3 Bf1 e2 Rh4 e1B Qf3 d1B Be3 g2 Bc1 Ra6 Re4 Bh4 Qd3 Qe7 Be3 Nc6 Nf3 g1B Nd4 Bc2 Nb5 Nd4 Bh3 Nf3 N1a3 b1Q Bg5 b2 Na7 Bgf2 N3b5 Qh1 Rg1 Ne1 Qg3 b1N Bg4 Bg7 f8Q Nd2 f7 Rg6 Rf1 d6 Kc6 Be5 Qd8 d5+ Qd6 d4 f8Q d3 Qff6 Be6 Bh3 Bf7 Bc8 Bfd4 Rf4 Bf2 Qfe6 Qg2 Rf6 Qg1 Qa3 Bc7 Qa6 Qa3 Qed6 Ne7+ Kd7 Nf5 Kc6 Kg8 h7+ Kg7 Qg4 Rd8 h8B+ Kh7 h6 Qg2 Qgg3 Qh1 Qde5 Rd4 Bg7 Qe7 Qd6 Nb1 Bh8 d2 Bg7 d1Q Bh8 Qg4 Bg7 Kg8 Bh8 Nd2 h7+ Kf8 Be3 Rg5 Na3 Bd1 Re6 Nh6 Bf6 Rg8 h8R Bc2 Re5 Bg6 Ra5 Nf5 Be5 Bh5 Rh6 Rg5 Rf6+ Kg8 B3f4 Kh7 N3b5 Rg7 Bh6 Qg6 Be3 Qgf7 Bh6 Rg6 Bg5 Qg7
4rRq1/kBnn4/r3NBQ1/1Rqq3n/1RPn1Pb1/5Q1n/1bN2NQ1/4b2K w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 a5 f4 h5 Kf2 e5 c4 d5 g4 Kd7 Kg2 Kc7 b6+ Kb7 g5 h3+ Kh2 d3 f6 e4 b5 d2 f7 h4 g6 d4 g7 d3 Bg2 a4 Qh5 d1N Qc5 a3 Qe7+ Nd7 Qe6 d2 Qf6 a2 Qe5 Ngf6 g8Q Ne8 Qf5 Nc7 Qgg4 Ba3 f8R Bb2 Qfg6 Nf2 Qf3 d1Q Na3 Ra6 Nc2 Qd6 Rb1 a1N Be3 Ka8 Bd4 Nb3 Bf6 Nd4 b7+ Ka7 b8N Qc5 b6+ Ka8 b7+ Ka7 Be7 e3 Bf6 e2 Nc6+ Kb6 Qfh5 e1B Qf3 Qe8 Nd8 Ka7 Ne6 Qf7 Ne2 Qh7 Nc1 Qg8 Kg1 h2+ Kf1 h3 Nd3 Ba3 Rb4 Bb2 Rg1 h1Q Rb5 Ne4 Nf2 h2 Rb4 Ng5 Rb5 Rc6 Rb4 Nh3 b8Q+ Ka6 Qb5+ Ka7 Qa5+ Ra6 Qaa3 Ndb5 Qfg4 Nd4 Bb7 Qhc6 Qaf3 h1N Kg2 Ng3 Rb5 Nh5 Kh1 Q6d5 Qgg2 Rh7 Rb4 Re7 Rf1 Re8 Rb5 Bb4 Ra1 Be1 Ra4 Ne5 Rab4 Bd7 Ng7 Bg4 Ne6 Nd7
6qN/2N5/2rB1k2/KbP1n1RB/n4qQn/1Q2Nbb1/nrQ2P1r/2RB1n2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 h5 b4 d5 c4 e5 f6 a5 b6 d3 Kc3 a4 b5 e4 c5 e3 Kb4 a3 b7 e2 g5 e1R b6 a2 Nh3 d2 Bg2 d4 Rh2 d3 Qc2 d1N Bh1 d2 Be4 Bd6 Qa4 Nb2 Kb5 d1N Qb4 Bg3 Nc3 Re2 Nd5 Na4 Rg2 Ra6 Bf3 Nd7 b8N Rb2 b7 Ne5 Ne3 Ne7 Nf4 h3 Ng6 h4 Bh5 Rc6 Na6 h2 b8Q h1B Nc7 h3 Ka5 h2 Qg4 Qg8 Qb3+ Be6 Bd2 Bc4 Rc1 a1Q Bc3 Rh6 Bd2 Nf5 Nh8+ Kf8 g6 Ndc3 f7 Ke7 g7 Bb5 Qc2 Nh4 Rgg1 Kf6 f8Q+ Qf7 g8B Qa2 Qb8 Bf3 Bh7 h1N Qbg8 Qf8 Qgb3 Qg8 Bf5 Qa1 Bd3 Na2 Be2 Qb1 Bd1 Rh7 Qcc3 Qf5 Qcc2 Qf4 Bc3 Bh2 Rg2 Ng3 Bd2 Nf1 Rg3 Ke7 Rg1 Bg3 Bc3 Nf7 Be5 Rhh6 Bd6+ Kf6 Rg2 Ne5 Qd7 Bh2 Rg5 Bg3 Qg4 Ng2 Bg6 Rh2 Bh5 Nh4
q2RB3/k1nKb3/r2Nn3/1P4qr/2N3qn/4NnPB/Q2R1rb1/R1n1B2Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb6 b4 f5 e4 a5 d4 h5 d6 h3 d5 h2 d7 c4 Ke6 c3 g3 h4 e5 c2 d6 h3 Be2 f3 Bf1 f4 Ra3 f2 Rf3 a4 Ra3 f3 Bh6 c1N Be2 f1N Nd2 f2 Rd3 a3 Ngf3 a2 Nh4 a1N Ng2 Be7 Nc4+ Ka7 Bd2 Nab3 Be1 Nfd2 Bg4 f1R Nge3 Nf3 Rd2 Rh5 Qe2 Rf2 b6+ Ka6 b7 Nh6 b5+ Ka7 Rf1 h1Q Bf5 h2 Bh3 Na6 b8R Qh8 Qd1 Bb7 d8N Bc6 d7 Qg8+ Nf7 Nf5 d8Q Qg5 Qd5 N5h4 Nfd6 Bb7 Rg1 Nbd4+ Kd7 Nc7 Rd8 Nde6 Qb3 Qg2 Qb1 h1Q Qa2+ Ba6 Qe4 Qf1 Qeb1 Qd3 Rf1 Qd4 Qh7 Qdg4 Qe4 Ng7+ e6 Ng1 Qab1 Na2 Qd5 Rb8 Ng2 Bb7 Qf3 Bf6 Nge3 Bd5 Qb2 Rb6 Qg2 Ba8 Qh2 Qb7 Qh1 Ra6 Qa3 Qb8 Qb2 Bg2 Qa1 Nc3 Qa2 Ngf3 Rg1 Qa8 Rf1 Ngf5 e7 Ne2 e8B Be7 Rg1 Nf4 Rf1 Nfe6 Rg1 N5d4 Rf1 Re2 Bf2 Nb3 Ra1 Nc1 Be1 Rf2
2nK1Q1r/1rRbn2N/2nr4/kP2q2Q/2q1P1n1/4q3/1n1bNQR1/B4BBN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Qe7 b6 Kd7 Kf3 a5 Kg4 h5+ Kf5 c5 g4 c4 b4 a4 d4 f3 g5 h3 b7 Kc7+ Kf4 Kb6 g6 f5 d6 f2 b5 h2 Bh3 f1R+ Nf3 c3 g7 a3 d7 h4 d5 a2 d6 c2 Bb2 c1N Nd2 Ka5 Rg1 h1N Ne4 Ra6 Ng3 Nf2 d8Q+ Rb6 e3 Ne4 d7 Nd6 e4 Qe5+ Kg5 f4+ Kg6 Nd3 Rc1 a1Q Nd4 f3 Qf6 f2 d8B Qa3 Qh5 Rd1 Ba1 f1Q Qff5 Qe2 Bf1 h3 Rg2 h2 Qf7 Qea2 Nde2 h1N Bh4 Nhf2 Nh1 Ng4 Bf2 Be7 Bg1 Bg5 Qf2 Nb2 Rc5 Qc4 Rc6 Nd7 b8Q Rb7 Rc5 Bc1 Rc7 Qe3 Qa8+ Kb6 Qa3 Nb8 Qa8 Bd7 Qa3 N8h6 g8N Nc6 Nf6 Nc8 Qf8 Ng8 Nh7 Rd5 Kf7 Bd2 Qfh6 Ka5 Qf8 Be6+ Ke8 Rd6 Q2f4 Nge7 Qff5 Nb4 Qf2 Bd7+ Kd8 Nbc6+
1q2B2Q/3r2Pn/3NNP1b/2n3N1/kB2Q1r1/4K2R/rq2b1n1/q1QqR1Rq w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 h5 g4 e5 f4 c5 d4 a5 b6 a4 f5 a3 b7 a2 b5 c4 g5 c3 b6 h3 g6 h2 d6 Kc6 d7 Kb5 d5 h4 d6 e3 Qd4 h3 Bd2 c2 Qb2+ Ka4 Kd3 c1Q Na3 e2 Nc4 e1Q Nf3 Na6 b8R Rh7 b7 Nf6 Bb4 Bh6 Rg1 h1Q Ng5 h2 g7 e4+ Kd4 e3 Kd3 Qg8 d8N e2 d7 Nc5+ Kd4 Qb1 Nde6 Qed1+ Ke3 e1N Qc1 Qb2 d8Q Qf8 Rb1 a1Q Qd4 Bd7 Bh3 Bb5 Nd6 Be2 Qe4 Ra5 Ra8 Qb8 Bg4 Rh8 Bh5 Nh7 f6 Rd8 Be8+ Rd7 Ra7 Qg2 Ra6 h1R Rc6 Rh4 Rc7 Qc8 b8Q Rg4 Qba8 Qb8 Rc6 Na6 Rc3 Nc5 Bh5 Qdc2 Qd2 Qd8 Kd4 Qh1 Qe3 Ng2 Rbe1 Qc7 Qh8 Qb8 Qc1 Qcb3 Be8 Q3c2 Kd5 Ra8 Rh3 Ra7 Bc3+ Kb3 Ke5 Ra2 Kd4 Nf4 Ke3 Qd1 Bb4 Ka4 Bf7 Nfd3 Bh5 Nf4 Be8 Ng2+
1r1r1nB1/4Pn2/6N1/rBQP1b1K/1N1R3B/k1bQR2n/2rr2qN/5Qqq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 h5 e4 c5 d4 a5 g4 f5 g5 h3 g6 h4 g7 a4 b6 a3 b7 a2 b5 c4 b6 h2 Nh3 c3 Qa4 c2 Bd3 Qg5 Qe8 Qg1 Bb5 Nd7 b8N Nh6 g8B Bg7 b7 Nf7 Nd2 Nf8 Na6 Rb8 Nb4 Bf6 Bb2 c1R Nf1 Rc2 Re1 a1R Re3 Ra5 Bc3 Bd7 Be1 Rd2 Qc8 Be6 Nf2 h3 Nfd3 Rc2 Ne5 Bg7 Ng6 Bf6 Bd2 Bd7 Ke2 f3+ Kd1 Rh7 Na6 f2 Ke2 Ra8 Kf3 Nh8 Bc4 Qg5 Rc3 Ne6 Be1 Re7 Qf8 f4 Rg1 h1R Rg4 h2 Ra3 Nf7 b8Q+ Nc7 Qb2 Rb8 Qb1 Bf5 Bb5 Ne6 Qc1 Rg1 Qa1 h1N Nh2 f1Q+ Bf2 Qc1 Bh4 Nf2 Rb3 Rc6 Re3 Nh3 Qb1 Qe1 Qc1 Rg2 e5+ Kd7 d6 Rd2 Qa1 Ree8 Be2 Rc4 Qe7+ Kc6 d7 Rcc2 d8Q Rd1 Rd3 Kb5 Nb4 Nf8 e6 Rdd2 Qd1 Ka4 Re3 Bh8 Qa7 Bg7 e7 Be5 Qd5 Red8 Qac5 Bh8 Bd3 Ka3 Qb1 Bg7 Qe4 Be5 d5 Bc3 Bb5 Rg2 Qd3 Qh1 Nh8 Qg7 Re4 Qd4 Ng6 Qdg1 Rd4 Rgd2+ Rg2 Be4+ Kg4 f3 Rg3 f2 Kh5 f1Q Re3 Qfg2 Qbf1 Bf5
KQ5B/2Pn2qQ/2kqRN2/bR2r3/2r4N/bnPb4/RQBq4/1bn2N1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 h5 Kf3 a5 Ke4 d5+ Ke5 Kd7 e4 f5 g4 h3 b4 h2 g5 h4 g6 f3 g7 a4 b6 a3 b5 f4 b7 d4 Kd5 d3 e5 h3 b6 d2 Qe2 d1Q+ Nd2 a2 Qe4 f2 Ne2 f3 Qa4+ Nc6 b8R Rh4 b7 Rc4 Ng1 Ra5 Qa3 Nd4 Qb2 Nb3 Bd3 f1Q c3 f2 Bc2 Qg2+ Nf3 f1B Rg1 Bd3 Re1 h1N Nf1 h2 Bf4 Qg3 Nh4 Nf2 Re4 Bd6 e6+ Kc7 e7 h1B e8Q Qd2 Qg6 Bf5 Be5 Kd7 Bd4 Bc7 Qh7 Rb5 Be5 Ba5 Bd4 Rb6 Be5 Re6 Bd4 Q8g5 c6+ Kc7 Be5+ Kb6 Bf6 Re5+ Kd6 Qh6 c7 Bg6 Kd7 Qg4+ Kd8 Kc6 Re2 Qd4+ Kc8 Qd6 Re4 Rb5 Be5 Nf6 g8N Nd7 Bh8 Qg7 Re6 Re5 Nf6 Bge4 Ra8 Bg6 Rb1 a1B b8Q Bgf5 Qc1 Bb2 Ra6+ Bb6 Ra2 Ba3 Qb2 Ba5 Qb4 Ndc5 Kb8 Nd7+ Ka8 Bg6 Qb8 Bge4 Rc1 Bg6 Bd1 Bb1 Bc2 Nd3 Re1 Ndc1 Re2 Rg5 R2e5 Bd3 Rb5 Re5
rB1b3K/rR3N1n/Br1qQ3/1Q4qq/1R1PN3/3n2n1/B1P2b2/Qn1k1bN1 w - - 0 1 illegal: No proof kernel
6r1/1b1b4/2NnqkB1/n4r1P/b1N2B1r/B1b2K2/QN2QP1n/1RqQ2Rq w - - 0 1 illegal: No possible last move
bq1q2Rr/r1k2N2/2n5/1R1Pq1PB/N1b2bKB/1Bn1QQ1N/8/3nR1rn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Kc7 e7 a3 e8B a2 Bd7 h4 Be6 h2 Ne2 h3 Ng1 c3 Bd2 c2 Be2 c1R Nc3 Nc6 Be1 Bb7 Rb1 a1Q Bh4 Nf6 Na4 Ne4 Bg8 Bd6 b6+ Kb8 b5 Nc3 Qd3 Ra7 Qe3 Ba8 b7 Kc7 b8R Qb2 Bf7 Qb3 Bd1 Qb2 Bb3 Rd1 Ne2 Rg1 Bh5 Be5 Kf2 f3 b6+ Kd6 b7 f4 Re1 Kc7 Rb1 Rd1 Rf1 h1Q Re1 Qa1 Ng1 h2 Nh3 Bd6 Re2 Rg1 Rbe1 Qb1 Rb2 Qe4 Bc4 Qe5 Rb5 Qde7 Rg8 Qd8 Bb3 Qb8 Rf1 Qg2+ Ke1 Qg4 Kf2 Qd7 Rd1 Qdd8 Re1 Ba3 Rf1 Bc1 d6+ Kd7 d5 h1N+ Ke1 Ne4 Kd1 f2 Ke2 Nc3+ Kf3 Bd2 Re1 f1B Qf2 Bc4 Qe3 Rf1+ Kg4 f3 Ba2 f2 Bb3 Bc1 Qf3 Bf4 Qe3 Qbc7 b8Q Qcc8 Qbb6 Qb8 Qf3 Kc8 Qbe3 Rg1+ Qg3 f1N d7+ Kc7 Qg2 Qf8 d8N Qff6 Nf7 Qfd8 Bd1 Nd2 Bc2 Nd1 Bb3 Ne4 Qgg3 Nec3 Qg2 Bg3 Qgf3 Bf4+
rn3Qn1/Qq3nb1/6q1/1bP1r1R1/NnPk1B2/qB4K1/N1Bb3R/N5rQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 Ke7 g4 Kf6 c4 Ke5 e4 d5 b4 h5 b6 a5 b5 f5 g5 d4 b7 d3 g6 d2 b6 h3 g7 h4 Qb3 d1R Ra3 h2 Qh3 f3 Bd3 f4 Qf1 h3 Rb3 a4 Nc3 a3 Nb5 a2 Rb1 a1B Rb2 Bd7 Nd4 Rh5 Nc2 Bb5 Ne2 Qd6 Rg1 h1Q Nc3 h2 Na2 Qg6 Be3 Rf5 Rg5 Rb1 Qh3 Qc1 Bd2 h1Q Qf1 Nh6 g8Q Bg7 Qf8 Ng8 Qg2 Qhh7 Qh1 Bh6 Rb3 Bb2 Na1 Kd4 Bc2 Re5 Rb4 Bc3 Rb2 Bg7 Bb3 Bb4 Rc2 Qa3 Rb2 Nd7 b8Q Rg1 Qa7 Nb8 Bc1 Bd2 b7 Qh3 Bc2 Qc8 Bb3 Nc6 b8N Qb7 Nd7 Nb8 Rc2 Rg4 Kf1 f2 Nb6 Rg1+ Ke2 f1N Kf2 f3 Na4 Ne3 Rb2 Rd1 Kg3 f2 Rc2 Nd5 Rb2 Ba5 Bf4 Bd2 Rc2 Nb4 Rb2 Rf5 e5 Rf1 e6 Re5 e7 Rg1+ Kh4 f1N e8B Ne3 Bf7 Rc1 Kg3 Ng4 Bd5 Rb1 Be4 N4h6 Bc2 Nf7 Bf5 Be3 Rh2 Bd2 Bc2 Rg1+
4Q3/4K2q/r1B2rNb/P1n1n2P/2n2N1B/2qB4/qbnR1RbQ/kr1RQ3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 g5 a4 b5 h4 c5 d4 c4 a5 f3 h6 b3 h7 g4 h5 b4 e3 c3 d6 c2 Kd5 b2 e4 b3 d7 g3 Ba6 g2 Bd2 c1B Be2 f2 Bh6 f1N Qc2 Qe7 d8Q Na6 Bd2 Bh3 Ra2 Bh6 Bc3 Ne3+ Kc6 Nc5 Qd5 Nc4 Nd2 b1Q Ndf3 b2 Be1 Qa7 Ne5 Ne7+ Kb5 Ng6 Kc6 Rhf8 h8Q+ Bg7 Qd7 Bh6 d5 Qa1 d6 b1Q Rb2 Qba2 Qd8+ Qe7 d7 Ra6+ Qb6 Ke6 d8R f5 Bh4 f4 Bf1 f3 Ne2 g1R Rd3 Nf4 Ng6 f2 e5 Kf5 e6 Ke4 Rd5+ Nfd3 Nef4 Bc3 Rd6 Qh7 e7 Rf6 e8B Qe1 Be2 f1N Bd7 Be5 Qe8 Nfe3 Bf1 Qc1 Qh2 Bg2 Rf2 Qcd2 Kc7 Nc2 Qb4 Ke3 Be2 Rb1 Kd8 Qe1 Bc6 Qd2 Re6 Kd4 Rd1 Qe3 Qe1 Qf3 Qeg1 Kc3 Qe1+ Kb2 Rd6 Ka1 Bf1 Bc3 Rd4 Nde5 R4d2 Bb2 Be2 Bg7 Ke7 Qc3 Bd3 Bh6+
Q1n2n1B/2rr4/1k1PBn2/r4B1R/rb1R2R1/2qq2q1/1Pb2N1N/2Q1QKb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 g4 f5 e4 c5 b6 h5 b7 Kc7 d6+ Kb6 g5 a5 d7 h3 e5 h2 d5 f3 e6 a4 e7 c4 e8Q h4 g6 h3 g7 f4 Nd2 f2+ Ke2 f3+ Ke3 a3 Qg6+ Qf6 d8R c3 Kd3 c2 Qh7 a2 Nb3 Bf5+ Kd2 Ra5 Qe1 Bb4+ Ke3 Nd7 d6 Ne7 g8B Nc8 Qe7 Rh7 Bb5 f1N+ Kf2 Ne3 Nd2 Nd5 Nf1 Qh8 Bg5 c1B Q7e2 Bc2 Be6 Qc3 Bf6 Bd2 Rh8 Nf8 Rd1 a1R Rg8 R1a4 Bh8 Rc7 Bd3 Nf6 Bdf5 Bh6 Q1d2 Be3+ Ke1 Bec5 Rg4 Bd4 Qe3 f2+ Ke2 Bdc5 Qe1 Bd4 Qc1 Be3 Nd2 Bd4 Ngf3 Be3 Rf1 h1Q Ne4 h2 Rd4 Qg2 Rh1 Qg3 b8Q+ Kc6 Rf1 h1R Qa8+ Kb6 Rg1 Rh4 Rh1 Rhh7 Rh5 Rhf7 Nh2 Rfd7 Bg6 Bb1 Bgf5 f1Q+ Kd1 Bg1 Nf2 Qfg2 Ke2 Q2f3+ Kf1 Bc2 Bf7 Qe4 B7e6 Qed3+
2RNK2n/nrQ2r2/1nRP3k/1q1PbQ2/1N2br2/1Qr1q1qN/1B1bR1B1/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 d4 Kg6 e4 a4 b4 f3 b6 a3 g5 c4 b5 c3 b7 a2 b6 f4 d6 f2 d5 f3 Qe2 h3 Qb2 c2 Ne2 h4 Bd2 c1Q Qd4 h2 Qb2 h3 Be3 Nh6 Bg2 f1R Bd4 f2 Ng1 Ra3 Nc3 Qd7 Qb3 Qe3 Re1 a1B Na2 Rh7 Bb2 Rf7 Re2 Qb5 Nb4 Kh5 g6 Bf5 g7 Bg6 Ke6 Nc6 g8Q Na7 e5 Be4 Qa4 Rc3 b8Q Be7 b7 Bg5 Qbd8 Rf4 b8R Nf7 Qc7 Nh8 Qb3 Kh6 Qgc8 Rb1 Rb6 f1N Rc6 Nd2 Kd7 Nc4 e6 Nb6+ Ke8 Rf7 e7 Qg3 Q8d7 Bd2 Qf5 Rf1 Kd8 Rf4 e8N Qe3 Ng7 Qg3 Ke8 Qe3 Qd8 Rb7 Nf3 Rf7 Rhe1 h1Q Qc7 h2 Ng5 Qhg1 N7e6 h1R Rc1 Qh2 Nd8 Qhg3 Rc2 Rb1 Nh3 Rc4 Bc1 Be5 Bb2 Rc3 Qcd7 Rc5 Rc8 Rc7 Rc6 Rb7 Qe7 Rc1 Qc7 Rc3
R5r1/QQ2Pq2/1Bn5/3n4/r1R1P1Nq/1R1B2bk/Nn2rb2/bq1N1bBK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg2 Ke6 b4 Kf5 h4 a5 c4 g5 b6 d5 c5 g3 e3 g4 c6 d3 b5 d4 c7 a4 h5 d2 b7 d3 h6 a3 b6 a2 h7 Ra4 e6 Nc6 b8Q Nge7 b7 Rg8 h8N Nd5 Na3 Qh4 Nb1 Bd6 Qb3 d1Q e7 d2 Qa7 f6 b8B Ba6 c8R Qc2 Bb2 d1N+ Ne2 Bc7 Nd2 Qb1 Bd4 Nb2 e4+ Kg5 Qb5 f5 Nc1 f4 Rh3 f3+ Kh1 f2 Bd3 f1Q+ Bg1 Qf7 Qbb7 Kf4 Nf1 g2+ Kh2 Be5 Bc7 Bb5 Bcb6 Bd6 Bgf2 g1B+ Kh1 g3 Ng6+ Kg4 Bfe3 Bf2 Ne5+ Kh5 Bec5 Kg5 Ne3 g2+ Kh2 g1R Nd1 Rg2+ Kh1 Bc4 Ng4 Bdg3 Bd4 Be1 Bdc5 Re2 Bg1 Bef2 Ra8 Qc2 Rb1 a1B Na2 Bb5 Rc1 Qb1 Rc5 Rd2 Bc2 Bf1 Bd3 Re2 Rc4 Qh8 Rh7 Qhf6 Rg7+ Kh4 Rg5 Kh3 Rf5 Nc7 Rb5 Nd5 Rb3 Qh4
R2RB3/R5Bk/1b1Kb1Nb/Qb3b1q/2nbN3/1NnQ1rP1/1Q3P2/rn5r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg7 Kf4 a5 Ke5 c5 b4 h5 d4 h3 b6 c4 b7 a4 d6 a3 d5 h4 d7 h2 g3 c3 d6 h3 b5 c2 b6 a2 Qg4+ Kh7 Nf3 e3 Bc4 e2 Nbd2 e1R+ Ne4 Nf6 Nh4 Nc6+ Ke6 Qe8 b8N Ne5 b7 Ra3 Na6 Qh5 b8R Bh6 Nc3 Ne4 Bd5 Nc4 Bf4 c1B Ba8 Be3 Ne2 Bb6 Nc1 Rf3 Be3 Nc3 Qd4 Rf1 Rg1 h1B Nb3 h2 Nac5 Bg2 Qd2 h1B Bd4 Rb1 Be5 Bf1 Qb2 Bd3 Ng6 Bf5+ Kf7 e6 Bg7 e5 Ke7 e4 d8Q e3 d7 e2 Bc6 e1N Ra8 Nc2 Ne4 N2a3 Rd1 Ba6 Qc7 Bb5 d8Q Bg2 Bd7 Bgh3 Be8 Be6 Qa7 Bhf5 Qa5 Rc1 Rd7 Rh1 Rad1 a1B Rda7 Nab1 Qd3 Na2 Qc1 Bad4 Qb2 Nac3 Bf7 Ne3 Kd6 Rc8 Rd2 Rc4 Be8 Ra4 Re2 Ra1 Rc2 Na2 Rcc8 Nac3 Rd8 Nc4+
r2Q3R/5N1r/1rn2N2/3q1BPP/2kB2nb/2b2R2/b2bbRKn/b1B2QN1 w - - 0 1 illegal: No proof kernel
bN6/Q2qn1R1/R1B1NB2/1Q1P1r2/b1K1kbN1/bP6/nbRr2b1/q4b1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 Ke2 Kd6 Kd3 Ke5 g4 h5 b6 a5 g5 c5 d6 f5 d7 f3 g6 f4 b3 c4+ Kc3 f2 b7 f3 d3 h3 g7 h2 Ra2 a4 Bh6 h4 Na3 h3 Qc1 Ra5 Bd2 Na6 b8N Ne7 g8R Nb4 Nb5 a3 Bg2 f1Q Nc7 f2 Rc2 a2 Bg5 Bb7 Bh4 Bc6 Ne6 Ba4 Rg7 Rh5 Qe3 Rf5 Qa7 Rd5 Bg5 Qc7 d8Q Qd7 Qda5 Qd1 Qb5 f1B d4+ Kd6 Bc1 a1B+ Bb2 Qb1 Nf3 Na2+ Kd2 c3+ Ke3 Qb7 Ne5 Qd7 Ng4 Qd1 Rg1 h1B Qbb7 h2 Bf3 Bfg2 Qba8 Qe1+ Kd3 Bh3 Rg3 B1g2 Kc4 h1B Rg6 Bh6 Rf6 Bf4 Q8b7 Nc6 e5+ Ke7 Ne3 Bg4 Rd2 c2 Ng7 B2h3 Rdg2 c1B Rc2 Bh5 Qb5 B5g4 e6 Kd6 Bc3 Ba3 e7+ Qe6 e8Q B1b2 Rg6 Qa1 Qh8 Ne7 Be4 Bd1 R3g5 Bdf3 Ng4 Rde5+ Bd5 Re2 Qh4 Bf1 Qh5 Bhg2 Qh1 Qf6 Ba8 Bb7 d5 Qe6 Rh6 Kc7 Bd4 Qc8 Ra6 Qd7 Ra5 Kd6 Bf6 Bc6 Ne6 Bb7 Rg7 Bc6 Nh2 Bb7 Ra6+ Bc6 Bh4 Ke5 Bf6+ Ke4 Bb7 Be3 Ng4 Bf4 Bc8 Ba8 Bb7 Rh5 Bc6 Rg5 Qa5 Rf5 Qb5 Rd2+
5b2/1RB1N1q1/2n4R/r4Qn1/kb1Pnbn1/N1r1N2Q/1bbPB1R1/B2n3K w - - 0 1 legal: proof: g4 d5 f4 h5 a4 hxg4 f5 b5 axb5 d4 c3 e6 cxd4 exf5 Ra3 f4 Ra5 Qd6 Ra1 Qd8 Kf2 Kd7 Kg2 f5 h4 g5 e4 c5 b4 a5 b6 Kc6 e5 g3 h5 f3+ Kh3 g2 Kh2 f4 e6 c4 h6 Kb5 h7 f2 e7 f3 e8Q+ Qd7 b7 a4 Ra3 g4 Qb3 Nc6 b8N Qg7 Qb2 Nh6 Qd8 Ra5 Nd7 g3+ Kh3 Ng4 Nb6 Bf5 Qb3 Bc2 Ne2 g1B Qd7 g2 Nc8 c3 Bb2 Bh2 Rg1 Bf4 Ne7 Rg8 Ra1 a3 h8R a2 Rh6 Rh8 Qf7 Ka4 Na3 Rh7 Rb1 a1B b5 Rh8 Bc1 Bb2 Ng3 Rg8 Bc4 f1N b6 f2 b7 Nfe3 b8B f1N Be2 Nd1 Ngf5 Ng3 Ne3 Ne4 Bc7 Rh8 Qff5 Rh7 Rh1 g1N+ Kg2 Nh3 Rg1 Nhg5 Kh1 Rh8 Rg2 Rh7 Rhh2 Rh3 Qde6 Rf3 Rh6 Rg3 Nac4 Ba3 Bb2 Bb4 Ba1 Nge5 Na3 Bc5 Kh2 Bb3 N3d5 c2 Qh3 c1B Qg6 Ng4+ Kh1 Rc3 Qf5 Bc2 Rb7 Bb2 Ne3 Bb4
r3b3/1qB4N/1Rr1QK2/knBR1B1N/b3Q2P/rQ6/P1bN1nrn/4b1b1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 g5 Kd4 b5 Ke5 c5 d4 Kc7 h4 Kb6 f4 g3 f6 c4 f5 g2 f7 b3 d6 g4 d5 b2 f6 c3 d7 g3 d6 b4 Qb3 c2 Ba6 Nc6+ Ke6 Qc7 Bb5 Nh6 Qc3 b3 Be2 Qb7 Bd1 Ng4 Bd2 c1R Be1 Na7 Kf5 e5 Nd2 b1B+ Bc2 b2 Ne2 g1N Qb3+ Nb5 Nf4 g2 Bg3 e4 Nh5 Nf3 Rd1 g1R Qe6 e3 d8Q+ Ka6 Qe8 e2 d7+ Ka5 Bf4 Bc5 f8N e1B d8Q+ Bb6 f7 Rg2 Nh7 Nfh2 f8B Bd7 Bc5 Nf2 Kf6 Rf8+ Q8f7 Be8 Bf5 Bc2 Bc7 b1B Qdd5 Ba4 Qde4 Bbc2 Rb1 Rfg8 Rb4 R8g3 Qg8 Ra3 Qb3 Bd3 Qge6 Rc4 Nb1 Bc2 Rd5 Rc3 Nd2 Rc4 Bf8 Rc6 Bc5 Nc3 Bg3 Ba7 Rb6 Nb5 Bc7 Qb8 Be7 Nd1 Rb7+ Bb6 Bf4 Be3 Bc5 Bg1 Rb6 Nf2 Bc7 Qb7
4k2b/1nbr1NKn/b3q3/B3PNQR/b1RPQ3/2r3R1/3qq3/QBb2b1B w - - 0 1 illegal: No possible last move
3R1R1r/n1n1rKQ1/3B1B2/b1PN3k/br1q4/QQ2n1r1/2B1P1r1/1N1b1Nn1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 Kf7 h4 g5 c4 a5 b4 d5 b6 g4+ Kf2 g3+ Kf3 g2 h6 Kg6 h7 a4 b7 d3 b5 a3 b6 d4 Nh3 d2 Bb2 a2 Nf2 d3 Qa4 d1R Ne4 d2 Ng3 Nc6 b8Q Bb4 c5 Na7 b7 Ba5 Qa3 Bd7 Bf6 Ne7 h5+ Kh6 Rh3 Ba4 Rh1 Rg8 h8N Qd4 Ng6 Nd5 Ne7 Nc7 Nd5 Rg7 Qg8 Re7 b8B Rc1 Qe6 d1B Qb6 Rc4 Qbb3 Rb4 Rh4 Ne6 Bd6 Rh8 Rg4 Nc7 Rg8 g1R Bh3 Rg2 Bg7+ Kg5 h6 Kh4 h7 Kg5 Nf1 Kh5 Nfe3 Rg3+ Kf2 f3 Bf6 f4 Bf5 Rd7 Rd8 Re7 Bc2 Rg2+ Ke1 Rg3 Nf1 Rg2 Qd3 f2+ Kd2 f3 Rf8 Qe4 Kc3 Qg4 Nfd2 f1N Qe3 Nh2 Nf1 f2 Rd8 Nf3 Kd3 Rf8 h8Q+ Kg6 Qb3 Ng1 Qg7+ Kh5 Qc1 Qd7 Qca3 Rh8 Rf8 Rb8 Kc4 Rg3 Nh2 f1N Kd4 Ne3 Nf1 Ne6+ Ke5 Rb4 Bh4 Nc7+ Kf6 Qg4 Rd8 Re5 Kf7 Qd4 Bf6 Reg5 Nbd2 Rg2 Rc1 a1R Nb1 R5g3 Bd3 Rb8 Rc4 Ra2 Bc2 Rb2 Rf8 Re8 Rb4 Re5 Rbb8 Re8 Rd8 Re5 Qba2 Rb4 Q2b3 Re7+
bB1Q1B1n/1nQB2b1/nq2rnN1/r1PK3b/3N2Rn/2N1k3/2P1br2/Q6R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 a5 b4 h5 e3 f5+ Kd4 d5 e4 a4 b6 h3 b7 h4 b5 a3 e5 a2 b6 h2 e6 h3 e7 Rh6 e8Q Ne7 Qe1 Ng6 Qc6 Nh8 Qd7 Bg7+ Qe5 Re6 Na3 Ra5 Nb5 Na6 b8B Bb7 Bd6 Ba8 b7 Qb6 Ba3 f3 b8Q f2 Bg2 f1R Qdb7 Rf2 Rc1 a1N Nc3 Nb3+ Kd3 d4 Kc4 d3 Q7c7 d2 Rb1 d1B Bf8 Bdf3 Qd4 f4 Bb2 Bd1 Nge2 f3 Rg1 h1N Bf1 h2 Bh3 Ng3 Qbd8+ Re7 Qde5+ Nf5 Nd4 h1N Qe1 Nh4 Rc1 Kg6 g5 Ng3 Bd7 Ne4 Rg4 Nf6 Qg1 Kh5 g6 Re6 Qh1 Rfe2 Ra1 f2 Bc1 f1B Bf4 Bh3 B4d6 Rf2 Qe1 Bdf3 Qe5+ Kh6 Rh1 Bhg2 Qe1 Kh5 Qc1 Bd1 Qa1 Bgf3 Qb7 Kh6 Bb8 Kh5 Qbc7 Kh6 Rf4 Kg5 Re4 Bh5 Rf4 Bh6 g7 Bdf3 g8N Bg7 Re4 Bfg4 Ne7 Bf3 Re5+ Kf4 Rg5+ Ke3 Rg4 Bd1 Ne4 Ra2 Ng6 Na5+ Kc3 Nb7 Kc4 Ra5 Nc3 Nh7 Kd5 Bf3+ Kc4 Be2+ Kd5 Nf6+
2B1Q1qb/1r1Q2R1/Bk2P1R1/n6b/1q4n1/1nRN2K1/nb1N1P1r/BnnQ4 w - - 0 1 illegal: No proof kernel
1K1Bk1n1/2n2b2/NP1r4/1RnPn1bn/qr1QN2Q/1qnB2N1/3B2Q1/3Rb3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 h3 e4 f3 d4 f4 b4 c4 d6 c3 g5 h2 b6 c2 b5 f2 d5 a4 b7 f3 b6 h4 g6 h3 g7 a3 Qe2 a2 Na3 Na6 b8Q Qd7 Qa7 Rh4 Qc4 Qa4 Qe2 Nc7 Qe1 Be6 Ne2 Rd8 Bf4 c1B Nc4 Bf7 Rb1 a1N Nd2 Nb3 Ng3 Nc5 Bd3 f1N Rb5 f2 Qd1 Qb3 Qa4 Ne3 Qd4 f1N Qg4 Nd1 d7+ Ke7 Bh6 Nfe3 Rf1 Nc3 Rd1 h1N Bg5+ Nf6 g8Q h2 Qh3 Rg4 Qh4 Bh6 Bf4 Bg5 Qg6 Kf8 Kd6 Ng8 e5 Nc4+ Kc6 Ba3 e6 Bb4 Nde4 Ne5+ Kd6 Rc8 d8B Ke8 e7 Ba5 Nf5 Ng3 Bd2 Nh5 Nfg3 h1Q Qg7 Rf4 Qg6 Bh6 Qgg4 Bg5 Qe2 Qa4 Qg2 Qh3 Bc4 Na2 Qc3 Bg6 Nf5 Kf7 Nf6 Na8 e8N Nb4 Be1 Na2 Nc7 Qe3 Qa1 Qeb3 Ng3 Bd2 Bd3 Rb4 Qad4 Nc3 Na6 Kf8 Nf5 Bf7 Ne4 Ke8 Nfg3 Rc7 Bf2 Be1 Be3 Ng4 Bc1 Rd7+ Kc6 Nc7 Bd2 N5e6 Kb7 Nc5+ Ka7 Ne5 Kb8 Rd6
nnrN1RQR/b1rP1N1q/8/5Qbr/Q1R2qN1/2b2bP1/BKb1b3/B3k3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 Kd6 d4 h5 Kd2 a5 Kc2 f5 b6 c5 b5 a4 g3 h3 b7 c4 b6 c3 Bb2 f3 Bc4 f4 Qe1 h2 Ra2 a3 Bb5 h4 Ba6 f2 Ba1 f1R Rb2 a2 Qf2 h3 Bb5 f3 Ba4 Qh4 Rb3 Nf6 Rb4 Nfd7 Na3 Qf4 Bb3 Rh5 Rc4 Rd1 Qf1 f2 Nf3 Bg7 Qd3 f1B Ne5 Be2 Ng4 Rb1 Rf1 h1Q Rf3 h2 e5+ Ke7 d6+ Ke6 Qg6+ Kd5 e6 Re1 Qg5+ Ke4 d5+ Bd4 e7 Rb1 Nb5 Rd1 Bb2 a1B Ba2 Rc1+ Kb3 c2 e8Q+ Ne5 Qf6 Bf5 d7 Ra7 Rf2 Kd3 d8N Kd2 Nd6 Ned7 N6f7 Ke1 d6 Bc5 Bd4 Bc3 Qfe5 Bd3 Qf5 Qhe4 Qg8 h1B Bg7 Bhf3 Bh8 Nc6 b8Q Rc7 b7 Nb6 d7 Na8 Qa7 Nb8 Qa4 Ba7 Rh2 Bd2 Ba1 Bc3 Qc5 Qh7 Qf5 Rd1 Rh4 c1B Rh2 Bce3 Rf2 Bc2+ Ka3 Nc6 b8R Rc1 Rc8 Nb8 Rh2 Ba5 Kb2 Bed2 Nb7 Bab4 Rf8 Be7 Rh3 Bg5 Nbd8 Bc3+ Ka3 Rc8 Rc6 Bcd3 Qab5 Bb2+ Kb3 Rh6 Qf6 Qhf5 Qa4 Rc4 Qe5 Bc3 Qc5 Qg6 Qf5 Bc2+ Ka3 Rb4 Rh4 Rb7 Rc4 Rbc7 Rh3 Rh7 Rh2 Rg7 Rh8 Rh7 Rc5 Rh5 Rc4 Bd2 Kb2 Qh7 Ne6 Bb4 Ned8 Bc3+
r3b3/2nr2n1/1b4q1/1NB1PQqB/kPBn1Rr1/3n2R1/K2R3N/rQ2N1r1 w - - 0 1 illegal: No possible last move, all moves rejected
rqbQ2N1/3b4/bRQ4R/BP4bn/b2Pq3/N1Q5/r1R2qqk/2K1B1nB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Qg5 b4 Ke7 d4 Kf6 Kd2 c5 g4 a5 b6 Ra6 b7 Bd7 Ra2 a4 Bc4 a3 Qc2 h5 Rh3 Qg7 e5+ Kg5 e6 f5 Re3 f3 e7 f4 e8R Nc6 b8Q f2 Rc3 f1Q Rce3 f3 Qa7 Kf4 g5 Kg3 g6 Ne5 Qa4 Be7 Rb8 Nf6 Re2 f2 Re8 Nf3+ Kc2 Bd8 Bd3 c4 Qa5 c3 Nh3 Ng1 Rb2 a2 Be4 a1Q Q5c5 Ra2 Qa6 Ba4+ Kd3 c2 Ng5 h3 Kd2 h2 d6 h1B d7 h4 Na3 h3 Nh7 h2 Re6 Nh5 Nf6 Qb1 Qc3+ Bf3 Qb5 h1B Bc6 Qf8 g7 Kh2 g8Q Bg4 Qb7 Be7 d8B Qh3 Rd6 Bd7 Ba5 Qf5 Ree6 f1B Bg2 Qc8 Rb6 Ba6 b5 Qc7 Qg5 Ra8 Ng8 Qb8 Rh6 Bc8 Qd7 Qf1 Bb7 Bc6 Qe6 Be8 Bh1 Bed7 Qec6 Qf5 Qgf6 Qh3 Qf8 Bh4 Qd8 Qg2+ Kd3 Be7 Bd2 c1Q+ Ke3 Qh7 Rc2 Qcf1 Be1 Qhf5 Qf8 Qd5 Qd8 Qff2+ Kd3 Ne2 Kd2 Qde4 Kd1 Ng1 Kc1 Bg5+
b1q2qb1/q4nqk/4nP2/2b1K3/QNQNR3/4qPRr/2B3b1/1QB1N1rR w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Ke4 e5 g4 d5+ Kd3 h5 c4 a5 b4 a4 g5 h3 b6 h4 b5 a3 b7 e4+ Kc2 d3+ Kc3 d2 Kd4 e3 b6 h2 f6+ Kh7 c5 a2 c6 h3 c7 e2 Nc3 e1Q Rb1 a1Q Rb3 Bc5+ Kd3 d4 Ne4 Nc6 b8N Nh6 b7 Be6 c8Q Nf7 Ng3 Qa7 N3e2 Qf8 Ke4 d3 Rb4 Nd4 Qa4 d1Q Nc6 d2 b8Q Qc2+ Kf4 d1Q Nf3 Qec3 Ne1 Qdd3 Qca6 Bb3 Qc4 Qg6 Bg2 Qgg7 Qbb5 Q2d2+ Ke4 Ne6 Ned4 Rc8 Bf3 Rd8 Bd1 Qde3+ Kf5 Rd7 Bc2 Ba2 Rf1 h1B g6+ Kh6 Qb6 Bg2 Rh1 h2 Qbb5 Qgg8 g7 Kh7 Qab3 Rd8 Qb1 Bb3 Qa4 Rd6 Nb5 Rd1 Nbd4 Ba2 Rb7 Bb3 Nb4 Ba2 Re7 Bb3 Rg1 h1B Rf1 Ba8 f3 Bg2 Rg1 Qc8 Re8 Qf8 g8R Qeh6 Re7 Qce3 Rg3 Qhg7 Rf1 Kg8 Rh1 Rh3 Ned3 Rg1 Ne1 Kh7 Re8 Qcb8 Re7 Neg5 Re5 Ne6 Re4 Qbc8 Qba2 Nfd8 Qca6 Ng5+ Ke5 Bg8 Q6c4 Nde6 Qb1 Nf7+
1rQq1k2/3n3n/Q1bP2q1/nb4B1/3bQN2/NRRR4/B1bB1P1K/2rb2n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 e5 a4 b5 d4 h5 d6 c5 g5 h3 a5 b3 a6 b4 d5 e4 a7 b2 g6 b3 g7 h2 f6 e3 Bd2 h4 Bb5+ Nd7 Kf1 c4 Kg2 h3+ Kg3 c3 Be1 e2 Qc1 c2 Nd2 b1Q Ra3 b2 Nc4 Ba6 Rd3 Rc8 Bd2 e1N a8Q Nf3 Qf1 c1N Ne2 Nb3 Na3 Na5 Nf4 Rc1 Bc4 Bb5 Ba2 Ng1 Qe2+ Kf7 Qe4 Qc2 Rb3 b1B Qa6 Qc6 Rd3 Bc2 Rb3 Ne7 g8R Ng6 Rd3 Bg7 Re8 Rg8 Re5 Kf8 f7 Rh8 Rh5 Bd4 Rh4 Nf6 d7 Ne5 d6 Nh7 Rh5 Qd5 Rh6 Qe6 Rh4 Qg6+ Rg4 Qa8 d8B Nd7 Bg5 Qd8 Rb3 Nf3 Re1 h1B Ree3 h2 Rec3 Ng1 Rh4 Bf3 Rh3 h1B Kh2 Bfd1 Rhd3 Rg8 Qe2 Bhc6 Qe4 Kg7 f8Q+ Kh8 Qff5 Kg7 Qg4 Re8 Qh3 Kf8 Qhe6 Qc7 Qh3 Rb8 Qhe6 Qd8 Qc4 Ba8 Qcc8 Bac6
2rbR3/6bn/1P2n1N1/2Nk1q2/1qqB2b1/1PRqrb2/QB1q4/KQ1BN2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 c5 g4 a5 e4 f5 g5 h5 b3 h3 Kb2 c4 g6 h2 b6 a4 g7 f3 Be2 a3+ Ka2 f2 Be3 f1Q Bd2 f4 Be1 f3 Bd3 f2 Bc2 h4 Nf3 c3 Nbd2 h3 Qb1 Nd7 Bd1 Ngf6 g8N c2 Ne7 Qc4 Ng6 f1Q Bf2 c1Q Ne1 Be7 Be3 Nc5 e5+ Kd7 e6+ Kd6 Bf2 Nh7 Bg1 Bh4 e7 Qf5 e8R Ne6 Be3 Qb4 Bg1 Qcc4 Ne4+ Kd7 d6 Kc6 d7 Kd5 Nc5 Qdg5 d8B Qgd2+ Qc2 Qdd3 Bc7 Bd8 Be5 Ra4 Kb1 a2+ Kb2 Ra8 Rc1 a1B+ Kb1 Qdd2 Qd3 Bd7 Rc3 Rc8 Qc2 Rf8 Ka2 Bb2 Qb1 Qfd3 Be3 Rf3 Bh8 Qf5 Bg7 Qdd3 Bc1 Ba1 Bb2 Re3 Bf6 Kc6 d5+ Kd6 Rf1 h1Q Bd4 Qg2 Rh1 h2 Qc2 Ba4 Qb1 Qgd2 Nb7+ Kd7 d6 Kc6 d7 Kd5 Nc5 Bc6 Rg1 h1B Rf1 Bf6 d8Q+ Bd7 Qe7 Bg2 Rh1 Bf3 Qd8 Bg7 Qc7 Bf6 Qa7 Bd8 Bf6 Qff4 Rc2 Kd6 Bc1 Nef8 Qa5 Bc3 Bb2 Bdg4 Ka1 Ne6 Qaa2 Kd5 Bh8 Bcf6 Rc3 Qff5 Bg7 Bfe7 Bh8 Bf8 Bd4 Bg7
n1q5/k3b1P1/2QN3R/n3Bn2/KR2qQ2/3N1Q2/b1rbPNnr/1B2n1Rb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc2 c5 Kb3 Kc7 g4 Kb6 g5 f5 d6 a5 g6 h3 d5 a4+ Ka3 h4 b4 f3 d7 f4 g7 f2 d6 c4 Bd2 f3 Qb3 c3 Bc1 c2 Nc3 h2 Nd5+ Ka7 Nc3 h3 Bh6 Be7 Na2 Nf6 Nc1 Ne8 Bf4 Nc6 Be5 Na5 Bg2 f1N Nd3 f2 Be4 Ne3 Qc4 c1N Qc6 f1N Bg6 Qc7 d8Q Ng2 d7 Ng3 Rb1 Nf5 b6+ Kb8 b7 Ka7 b8R Qb7 Qd6 Nc7 b5 Rh5 Kb4 a3 Ka4 a2 Qc6 a1B Qf8 Bc3 d8N Be6 Nf7 Qc8 Nd6 Ba2 Ra1 Bd2 b6+ Ka6 b7+ Ka7 Qf7 Rh8 Qfd5 Rh5 Qf3 Rh6 Nc5 Nd3 Rc1 Nde1 Nd3 Rh5 Rb1 Rh4+ Rb4 Rc4 Bh7 Rc2 Bg6 Qe6 Rh8 Qc4 Rh6 Rh8 Qd7 Na8 b8Q+ Ka6 Qf8 Qc8 Qdc6+ Ka7 Qf6 Ng3 Be4 Rh7 Q6f4 Nf5 Nf2 Rb2 Bb1 Rc2 Qb3 Rh8 Nf3 Rh7 Rg1 h1B Bf6 h2 Ne5 Rh8 Ned3 Nge3 Qbd5 Bf3 Rh5 h1Q Be5 Qg2 Rg5 Rh2 Rg6 Be4 Rh6 Qg4 Qg5 Bh1 Qf3 Qe4 Qgf4 N3g2
nr2rbQq/1b4PN/1n2N1QQ/bn2B3/2R1B2B/3P1b1q/K4Rn1/2N3kn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Bh6 b4 Kd7 e4 Kd6 g5 Ke5 b6 Kd4 b7 c5 d3 a5 Kd2 f5 Kc2 a4 Kb2 f3 g6 c4 d6 a3+ Ka2 h3 e5 h2 b5 f2 e6 c3 b6 f4 e7 c2 e8N f3 d7 Nf6 Ng7 Ne8 Qe1 Nc7 Be2 f1Q Bd2 c1B Ba5 Ke3 Nh3 f2 Kb3 a2 Bc3 Bd2 Be5 Ba5 Rg1 h1B Nc3 Bc6 Rc1 a1N+ Ka3 Nc2+ Ka2 Na3 Ng5 Nab5 Rg2 Qe8 d8B Nd7 b8Q Qf8 b7 Nb6 Ra1 Qh1 Rd1 f1N Qh4 Bg4 Rc1 Rg8 Rg3+ Kf2 Rf3+ Kg1 Qh5 Qf6 N7e6 Qh8 Bdf6 Bg7 Qe8 h6 b8Q Bb7 Qbd8 Rb8 Nh7 Nca8 Bd1 Ne3 Ne2+ Kg2 Qh4 h5 Rc4 Rf8 Nc1 Kg1 Qg5 h4 Rf2 Ng2 Bf3 Bh5 Be4 Bf3 Qh6 h3 Rb2 h2 Rf2 Rg8 Bh4 Rf8 Qdg5 Rg8 Qf7 Rge8 Qg8 Bf8 Qf6 Nf4 g7 Qg2 Kb1 h1N Ka2 Qh3 Qfg6+ Ng2
1bb1n3/BPRBKb2/2B2r2/Qb1Q2qq/2Q1Nq2/1PNR4/R2r4/1q2kb1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g4 c5 b6 f5 g5 a5 b7 h3 d6 h2 g6 a4 d7 a3 Ke6 f3 d5 a2 d6 f2 g7 h4 Nh3 f4 Kf7 f3 Bd2 Ne7 g8R Na6 Rg5 Rh6 Rg6 Nc7 Ba5 Nf5 Bc3 Ne8 Ng1 h3 Qc1 Ng3 Rg7 Qg5 Bg2 f1B d8Q f2 e4 Kd3 e5 c4 d7 Bd6 e6 Bb8 b3 Rf6+ Ke7 Ra4 Bd4 c3 Nd2 c2 Bc5 Rd4 Bc6 Be2 Qc7 f1B d8Q Rd6 Qd1 c1Q Ba7 Kc3 Rh7 Bb5 Ne2+ Kd3 Rg1 h1B Nc3 h2 Nde4+ Qcd2 Qg4 Qdf4 Qa5 Bf3 Bd7 Nh1 Rg3 Kc2 Bc6 Rd2 Qd5 B3e2 Qh4 Bh5 Rd3 Bf7 Bd7 Qe3 Qf4 Qf3 Qfc7 Qf2 Qcc4 Qff4 Re1 a1Q Re2 Kc1 Bc6 Qb1 Rg2 Rd1 Ra2 Rd2 Bb6 Ng3 Kf8 h1Q e7 Qhh5 Ba7 Bg8+ Rf7 Ng7 e8B Nh1 Bed7 Ne8 Bf5 Rh6 Re7 Bf7 Rc7 Rd6 Bfd7 Rf6 Na4+ Kd1 Ke7 Ke2 Nac3+ Ke1
NQ2KbbB/b3nRq1/2n1kN2/1r1b2Q1/7N/B6R/qnrPqQP1/3q3B w - - 0 1 illegal: Other
bB1bR2r/1r1q3B/2qQ1qK1/b1QR2b1/k2q4/PN5R/r2PnNNQ/3n4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 c5 Kf4 b5 Kg5 e5+ f6 h5 f4 e4 g4 e3 f5 b3 d6 Kc6 d7 c4 Ba3 c3 Rh3 c2 Qc1 b2 Be2 b4 Ba6 e2 Rf3 e1B Rd3 h3 Kg6 h2 g5 h1Q f7 h4 f6 h3 Ne2 b3 Rg3 h2 Re3 Nh6 Re4 Be7 f8R Qg1 f7 h1Q Nf4 Ng4 Ng2 Bh4 Bd6 Ne3 Bd3 Bb7 Re8 Nd1 f8N Qd4 Nc3 b1Q Re5 b2 Ne4 Ra6 Ra5 Ba8 Rd5 Qc8 d8Q Qd7 Ne6 Qf1 Qa5 Bd8 Qa3 Kb6 Bh2 Nc6 N6c5 Ra4 Nf2 Ka5 Bf5 Kb5 Qg3 Ra7 Nb3+ Ka4 Qf4 Rb7 a3 Qa6 Ra2 Qa1 Qd6 b1R Bg3 Qac3 Rb2 Ra1 Bf4 Ra2 Rb1 Nb2 Qg1 c1B Qh2 Qab6 Qc5 Qb5 Bb8 Nd1 Qhd6 Bb2 Bc2 Ne3 Rh1 Nd1 Rh3 Qf3 Bf5 Bc3 Qh2 Rf8 Kh6 Qde3 Bg6 Rh8+ Bh7 Qf6+ Kh5 Nd4 g6 Qfb6 g7 Ne2 g8Q Ba5 Qgg3 Bhg5 Qe5 Qf6 Qe6 Qbc6 Qed6 Qfe5 Kg6 Q3d4 Qh1 Qee7 Qh2 Qef6+
k3n1Qb/3B2nB/2KQ1q2/q5P1/1q1BNn1P/b2R1bQr/Rn1qN3/1N5r w - - 0 1 illegal: No proof kernel
2q5/b2r2r1/K1Qq2QN/1R4PR/1P2BN1R/B3r3/1nqnr1bQ/qN2k2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 a5+ Kc4 f5 b4 c5 e4 f3 g4 h3 g5 h4 b6 h2 Kb5 a4 b7 h3 Bb2 a3 Bd3 a2 Bc2 f4 Bc3 f2 Qd3 f1Q Qc4 f3 Ne2 f2 Nf4 Qc1 Nh5 f1R Bd2 Rf3 Qb3 c4 Nf6 c3 Re1 h1R Qb2 h2 Re3 Nd7 b8R Rh7 Nh5 Ngf6 Nf4 Ra7 Bd3 Qc2 Bc1 Rb7+ Ka6 Ne5 Re1 Nc4 e5+ Ke7 e6 Kd6 e7 Bh3 e8Q Ne4 Re2 Rbd7 Rb5 Ned2 Be4 Re3 Qg6+ Qf6 Rg2 Rhg7 Rg4 Bg2 Rh4 Rhe1 Rh5 h1B Rh4 R1e2 Rh5 Kc7+ d6+ Kc8 d5 Kd8 Qb3 Nb2 Qc4 Be7 Qc6 Qe6 Rh7 Bf6 Rh3 Bd4 Rh5 Ba7 Rh4 Rde7 d7 Qd6 Rh5 Ref7 Rh4 Ke7 d8N Qc7 Na3 Qd6 Rb1 a1Q Rh5 Rf8 Nf7 Rd8 Nh6 Rd7 Rh4 Qb3 Rh5 c2 Rh4 Nd1 Bb2 c1Q Rh5 Qcc3 Rc1 Qcc5 Rc4 Qc2 Bc1 Nb2 Rd4 Na4 Nb1 Q5c3 Ba3 Nb2 Nd3 Qf6 d6+ Ke6 Rbd5 Qc4+ Rb5 Qc5 Nf4+ Ke5 Rc4 Qe6 Rc3 Kd4 Rh4 Rde7 d7 Qed6 d8Q Rd7 Qg8 Qf5 Q8e6 Qff8 Qh3 Qe8 Qh2 Qc8+ Ka5 Rf3 Rc4+ Ke3 Rh5 Kf2 Rd4 Ke1 Rc4 Qa8 Ka6 Rb3 Rc3 Qd8 Rch3 Rbe3 R3h4 Qc8+
Q1BBNr1Q/2KNR3/1P2N2n/3q1Rb1/r2qnB1k/8/2RP2nr/1brn3q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 g4 h5 b4 c5 e4 a5 d6 f3 d7 c4 b6 h3 b7 h2 b5 f4 b6 f2 Qe1 f3 Bh3 f1N Na3 a4 Nc2 h4 Bb2 a3 Nd4 a2 Rc1 a1Q Rc2 Bh6 Kd6 c3 e5 f2 e6 Na6 b8Q Nc5 e7 Ne3 e8N Ra4 Qa8 f1N Qd1 Qa2 Qa1 Nd1 Kc6 Qf6+ Kc7 Ne4 d8B Nfe3 Ba3 Qd5 Bd6 Ng2 Bf4+ Kg6 g5 Kh5 g6 Bg5 g7 Bf5 Ne6 Qfd4 Qb2 Nh6 Nf3 Rf8 Re1 h1R g8R Rh2 Ne5 Bg6 Bf5 h3 Nd7 Kh4 Rf1 Bh7 Rg7 Bg6 Qa1 Bh7 Re7 Bg6 Rb2 c2 Rf3 c1R+ Rc2 Qb4 Qh8 Qbd4 Rc4 Nef2 Bg4 Bb1 Rc2 Ne4 Be5 Rh1 Rf5 h2 Bf4 Rg1 Be2 h1Q Ba6 Rf1 Bc8 Rf3 Rc5 Rh3 Rc2 Rh2
NQ2Q1b1/3qP1q1/3R4/3r1q2/B2n1n1k/B1b2Q1r/bN1BR1P1/1brr2NK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 b4 Kf6 e4 Kg5 d4 f5 e5 c5 b6 a5 b7 h5 e6 a4 b5 h3 d6 h4 d5 c4 e7 a3 d7 h2 d6 a2 b6 h3 Qd4 c3 Bb2 c2 Kf3 Bg7 Na3 Nf6 Re1 c1R Ba6 a1Q Re3 Nh5 Ne2 Nc6 b8B Rg8 b7 Kh4 Rd1 h1R Rg1 h2 Bd3 Ra5 Nc4 Qf8 d8Q Be6 Nb6 Ba2 d7 Bf6 Qc3 Rg3+ Kf2 f3 Qe8 f4 d8Q Qb1 Na4 Qg7 Bf5 Rb5 Qcd3 Bc3 Rd1 Bg8 Rd2 Rhd1 Ba3 h1Q Nb2 Qh3 Bd7 Qe6 Qd5 Qbf5 Ba7 Ra5 b8N Qd6 Re6 Rc5 Qd3 Rd5 Be3 Nd4 Rh6 Ra5 Bc6 Qdd7 Na6 Rd5 Rc2 Be1+ Kg1 f2+ Kh1 f1B Rg6 Bc3 Qb8 f3 Nc7 f2 Na8 Nf4 Ng1 Be2 Rd2 f1B Rd6 Bf3 Ba4 Be4 Qe2 Bb1 Qf3 Bc4 Re2 Bca2 Bd2 Rh3+
KQ1q2NR/1QP2P2/4nBr1/k1N2N1n/6b1/b1r1qR2/1R1n1q1b/B1q2Bn1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 g4 Kc7 b4 Kb6 c4 h5 f6 a5 g5 e5 g6 h3 f7 a4 g7 a3 Qe2 h4 Bg2 h2 Bh3 d3 Bg5 d4 Ke4 d2 f4 d1N f5 a2 f6 d3 Qe1 d2 Qe2 Bg4 Nf3 Nb2 Nd4 d1N Qg2 Na6 Nf5 Rh6 Nc3 Nc7 Rb1 a1B Qf3 Ra3 Bf1 Bc5 f8R h3 f7 Rd6 Bf6 Ne6 Rg1 h1Q Rg3 h2 Na4+ Ka7 b6+ Ka6 b5+ Ka5 b7 Qg1 b8B h1Q b6 Rc3 b7 Qf2 Rh3 Ba3 c5 Nc4 Rb2 Ra6 Bd6 Nd2+ Kd5 e4 b8Q e3 c6 e2 c7 e1Q Nc5 Qee3 Qg2 Qhg1 Rf3 Qh1 Rb6 B1b2 Kc6 Bc1 Kb7 Qhh6 Bg5 Nf6 g8N Nh5 Bf6 Qhg5 Bde5 Qgf4 Ne4 Bd6 Qh1 Bca3 Nc5 Qg5 Bd4 Bh2 Rb2 Rc4 Nge7 Qee2 Rb4 Nb1 Rc3 Nef4 Bfe5 Rg6 Bf6 Ne6 Ka8 Qc1 Rh8 Nd2 Ng8 Qd3 Rcb3 Nc3 Qb7 Ne2 Ba1 Ng1 Rb2 Rc2 Rf4 Rc3 Rf3 Qde3
6bQ/Pr3bqq/2krn2n/4B1R1/4NbB1/QQ2NPr1/n1N3b1/K2RR1r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 b5 Kc2 c5 Kb2 h5 a4 e5 g4 h3 g5 h4 g6 b3 f3 c4 g7 e4 a5 h2 a6 e3 a7 e2 d6 e1R f6 b4 f7 h3 d5 Nc6 Qd4 Nh6 g8R Qc7 Rg5 Nd8 Rh5 Rg8 Qe5 Ne6 Qe3 Rg3 Nd2 c3+ Kb1 b2 Ne4 Rb8 Rg5 Rb7 Ne2 Rd1 Nd4 c2+ Ka2 b1N Bb2 c1R Qb3 Qc3 Nf5 Qg7 Be5 Nc3+ Kb2 Na2 Ne3 Be7 Rg1 h1B f8Q h2 Bh3 Bg2 Re1 h1Q Bg4 Bd8 Rb1 Bc7 Ka1 Qh5 Qh8 Qhg6 Qa3 b3 Qg8 Q6h7 Qf7+ Kd8 d7 Rc6 Rc1 Rd6 Qg8+ Ke7 d8N Kd7 Nc6 Bb8 Nd4 b2+ Kb1 Bc7 Ndc2 Bb8 Qh8 Kc7 Qb3 Bd7 Qa3 Be8 Qg8 Bf7 Qh8 Rd2 Rcd1 Rf2 Qb3 Rf1 Qf8 Kd7 Qh8 Rg1 Qf8 Ra6 d6 Kc6 d7 Bd6 d8Q Bg8 Bd4 Bf4 Qfa3 Bf7 Qh8 Bg8 Na1 Bf7 Be5 Rab6 Kc2 b1B+ Kb2 Bd3 Nac2 Bg8 Nd2 Bg6 Ne4 B6f7 Kb1 Rd7 Kb2 Rbb7 Ka1 Rd6
b2n4/PqB1r3/3Pr2b/r4qN1/b1n1B1kB/N3Q1b1/QK1RrR1n/1N4R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 e5 Kc2 b5 f4 c5 a4 h5 g4 b3+ Kb2 b4 d6 e4 f6 Ke6 g5 Kf5 f7 c4 a5 h3 a6 h2 g6 e3 d7 e2 g7 e1B d5 h4 d6 h3 Qd5+ Kg4 f5 Qa5 d8N Nd7 f6 Nh6 Qd3 Rh7 Nd2 c3+ Kb1 c2+ Kb2 Qf5 Rb1 Nb6 Qc3 Bd7 Qc5 Ba4 Bg2 Bg3 g8Q+ Bg7 f8B Nf7 Nc6 Nd8 Qe6 Bh6 Na7 Re7 Nb5 Raa7 f7 Ra8 Ka1 b2+ Ka2 Raa7 Be4 b3+ Ka3 Ra8 Ngf3 Raa7 Re1 h1N Rd1 h2 Ng5 Nf2 Qe3 h1B Qc4 Re6 Be7 Bf3 Ra1 b1R f8R b2 Qa2 Bh1 Bf6 Rae7 a7 Bg2 Bc3 Bf3 Ba5 Bh1 Nf1 Bg2 Bcd2 c1R Be1 Rc5 Rd2 Rbc1 Rf7 b1Q Rf6 R1c2 Rf8 Na8 Bc7 Nb6 Rf6 Nh3 Rf8 Ng1 Bf2 Nf3 Be1 Be5 Bh4 Bg3 Rf7 Nh2 Rf6 Qd5 Rf8 Qb7 Rff2 Qd1 Rb1 Qf3 Rbd1 Rce5 Ra1 Rcc5 Kb2 Qf5 Na3 Bf3 Rd3 Ra5 Nd2 Rec5 Rg1 Rc2+ Ka1 Bg2 Ndb1 Re2 Rd2 Qa6 Bc2 Ba8 Kb2 Qb7 Be4 Nc4+
3R3n/bn2B1qN/nrP1B1N1/N6B/n1Q1K1bR/1b6/R2nQPkn/r3b3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 g4 Ke5 c4 d5 b4 h5 b6 a5 b5 h3 c5 h4 f6 h2 b7 h3 f7 a4 b6 a3 c6 a2 g5 Na6 b8Q+ Qc7 g6 Nh6 b7 Bg4 Ba3 Kf4 g7 e5 g8B e4+ Kd2 e3+ Kd3 e2 Qc2 e1B Qa4 Bc5 f8R+ Nf7 Qc4 Ba7 Ne2+ Kf3 Rg1 h1N Qc3 h2 Rd8 Ng3 Be7 h1N Bh4 Ne4 Qc4 Ned6 Bg5 Ng3 Bh3 Nf1 Be7 Nh2 Nbc3 Rh4 Ne4 Nh8 Nc5 Qd7 Bg5 Qg7 Bf7 Rh5 Be7 Re5 Rd1 a1N Rd2 Nb3 Ra2 Nd2 Nb3 Rf5 Qc7 Rf4 b8N Nb7 Qe5 Re4 Kc2 d3+ Kc3 Rd4 Nd7 Re4 Bh5 d4+ Kb2 Rf4 Nf8 Rf5 Qee6 Rb5 Nf4 Rb6 Qe5 Ndf1 Rg2 d2 Kc2 d1B+ Kd3 Nd2 Na5 Bb3 Rg1 Ba4 Rh1 Bb3 Bf1 Nb1 N4g6 Nd2 Be2+ Kg2 Bd1 Nb1 Ke4 d3 Bc2 d2 Nh7 d1N Bd3 Nb2 Bc2 Nf3 Rh4 Nh2 Qeb5 Na4 Bd1 Bd7 Bdg4 Bc8 Be6 Bd7 Bg8 Bg4 Be6 Nd2+ Ke3 Bbd1 Ra3 Nb2 Qd3 Bb3 Qe2 Nc7 Nc4 Bb8 Qc5 Ra4 Na5 Ba7 Qcc4 Na6 Ra1 Ra2 Kf4 Na4 Ke3 Rc2 Ra2 Rc1 Kd3 Ra1 Ke3 Ndf1+ Ke4 Nd2+
Br2n3/1nnr2P1/4QnQ1/K1BPrN2/1Rq2RQ1/kN3bR1/r3N3/b1n3n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kd6 g4 h5 d4 c5 Kd2 f5 Kc3 a5 b6 a4 b5 h3 b7 a3 g5 a2 g6 f3 b6 f4 Bb2 c4 Kb4 h4 Bg2 c3 Qc1 h2 Nd2 h3 Nf1 f2 Nd2 f1N Qd1 c2 Bf3 c1N Be2 f3 Bc3 f2 Rb1 a1N Qe1 Bg4 Bf3 Bg7 Ne2 Nab3 Rg1 h1R Rg3 Na5 Nb3 Nd7 b8N h2 b7 Qc7 Nc6 Ne3 b8Q f1N Qc8 Ngf6 Ne7 Nd2 Bb2 Rf8 Ba3 Ne8 Qd1 Be5 g7 Ndf6 Qg1 Bh5 Qg4 Nb7 Qg2 Rd1 Nf5+ Kd7 d6 Kc6 d7 h1R d8R Rhe1 Rd5 Ra6 Ra5 Ned5+ Ka4 Qc8 Bc5 Ndc7 Kb4 Ra8 Ra4 Qe6 Q2h3 Ra5 Bg2 Nf3 Qg6 Ng1 Qhg4 Rd2 Bh1 Ra2 Bf3 Ra7 Rb2 Bd6 e5+ Qd5 e6 Be5 e7 Rh8 Qh4 Rg8 Be4 Bf3 Qhg4 Rf8 Kc3 Kb5 Rc4 Ned6 e8Q+ Qc6 Qe7 Rb8 Qe6 Nde8 Rb1 Qa6 Ra4 Nbd6 Ba8 Nb7 Rb2 Qc6 Kd2 Qa6 d5 Qc6 Rf4 Bd4 Rc2 Ba1 Rb2 Qa6 Kc3 Qc6 Nbd4+ Ka4 Kc4 Qa6+ Rb5 Qc6 Rb4+ Ka3 Nb3 Qa4 Ned4 Re5 Ne2 Na6 Nd2 Qb3+ Kb5 Qc4+ Kb6 Nd8+ Ka5 Rd7 Nb3 Nac7 Bb6 Rb2 Bf2 Ra2 Bc5 Nb7+
nrBRQ2q/4BNrb/2QN1n1r/1Q5N/Pb3b2/R1PnKb2/1R4rk/1n6 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 f4 Kf6 h4 e5 a4 g5 c3 d5 h6 b5 h7 d3+ Ke3 g4 h5 g3 h6 b3 Nd2 b2 Ra3 b1R Rb3 b4 Qc2 g2 Bb2 d4+ Kf2 e4 Ne2 g1R Bg2 e3+ Kf3 Na6 Bc1 Rb8 Ke4 Rb2 Rh2 Nc7 Qb1 Na8 Ra3 b3 Ng3 e2 Bh3 e1B Nc4 d2 Nd6 d3 Ke3 d1B Re2 Ra2 Rb2 d2 Bg4 Bf3 Nh5+ Ke7 Qd3 Nf6 Qb5 Bg3 Qc6 Rg2 Qb5 Rg8 h8Q Rg7 h7 Bcb7 Qg8 Bbe4 h8N Qc8 Qgd5 d1N+ Kd4 Bd3 Qdc6 Nf2 Nhf7 Bc2 Bd2 Nd3 Ke3 Ra1 Be1 Bh2 Bh4 Rh1 Rba2 b2 Bg5 b1N Rb2 Rg8 Bh3 Bh6 Bh4 R8g7 Bg4 Bg5 Bh3 Qh8 Bg4 Nd7 f6+ Kf8 Nd8 Qg8 f7 Ke7 f8R N3e5 N6b7 Bh7 Ng3 Qh8 Be6 Bf6 f5 Nd3 Bg5 N7e5 Bc8 Nd7 Nh5 Bd6 Ng3 Rh6 Nh5 Bb4 Bh4 R2g5 Nd6 Be5 N8f7 Bh2 f6+ Ke6 Ne5 Rg2 f7 Bg3 Be7 Bh2 Bb7 Nf6 Rd8 Bg3 f8Q Bh2 Ne8+ Kf5 Nf7+ Kg4 Ned6 Kh3 Qfe8 Be5 Ba6 Kh2 Bc8 Bf4+
3r1N2/K3qrqR/1n1Q2Bb/Bn3Rr1/k1b1P3/1b1p1Q1q/1RP4B/4nN1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 e4 a5 b4 d5 h4 Kd7 b6 Kc6 h6 g5 h5 d3 b7 Kb5 h7 a4 h6 f3 Ke3 a3 Kd4 a2 Rh5 f4 Rh3 f2 Qe2 g4 Qf3 g3 Nd2 g2 Qg3 f3 Be2 f1B Rb1 a1Q+ Rb2 f2 Rh5 Nf6 Ngf3 g1R Ne5 Ka4 b5 Nfd7 b6 Ra7 Rf5 Na6 b8B Nc7 b7 Nb6 Bh5 Qe7 Qf3 Rg5 Bg6 Be6 Nd7 Be2 Nf1 d2 Rf6 d1N Rf5 Bg8 Bd2 Bc4 Be1 Be6 Ba5 Rg8 h8Q Ne3 h7 Bh6 Nf8 Ng2 Re5 Ne1 Rf5 Nca8 Be5 Nc7 b8Q Bb3 Bh2 Rb7 Ne3 f1Q Qd8 Bc4 Qd6 Qh3 Kc5 d4 Nf1 d3 Kc6 Rb8 Kc5 Rg7 Kc6 Ra8 Kb7 Rd8 Ka7 Rf7 Qc3 Rg3 h8R Rg5 Rh7 Bb3 Qh8 Bec4 Rb1 Qd4 Rb2 Qg1 Qhd4 Qgg3 Qg1 Qge5 Qgg2 Qg7 Qh1 Nb5+
b5BN/1nQ2B1b/1K1b1nrk/P2Qp3/5q1b/RNrrP3/1B3n2/R1Rb1Q2 w - - 0 1 legal: proof: f4 a5 c4 h5 b4 d5 cxd5 axb4 g4 g5 fxg5 hxg4 Kf2 f5 Ke3 Kf7 Kd4 Kg6 Kc5 b5 a4 e5+ d6 b3 h4 g3 d4 g2 e3 b2 d5 b4 a5 f4 Bb5 f3 Ba6 f2 Qa4 f1N Qa2 b3 Nh3 g1B Be2 Bb7 Bf3 Nf6 Kb5 c5 d7 c4 d6 c3 Bd5 c2 Nd2 b1B Bb2 c1R h5+ Kg7 g6 Ra6 Ng5 Rc3 Bg8 Ng3 Nf7 Bf2 Rc1 Bc2 Qb1 Nge4 Ra3 Rh6 Nh8 Bh4 Bf7 Nc6 Qa1 Qe8 d8Q Nf2 d7 Bd1 Qc7 Bd6 d8Q Qf8 Qa8 Ra7 Kb6 Nd8 Qb1 Bbf3 Qd5 Nb7 Qbd3 Ra8 Qf1 Rd8 Rca1 Rh7 Rc1 Kh6 g7 Be4 g8B Rg7 Rca1 Rg6 Rc1 Qe8 Rca1 Qa4 Rc1 Bg2 Rca1 Qf4 Rc1 Kg5 h6 Bgf3 h7 Kh6 Ba1 b2 Nb3 b1B Bb2 Bbe4 Ka6 Rg7 Qdc6 Bg5 Qg1 Bdc2 Be8 Bf8 Bef7 Rdd3 Re1 Nd8 Ng6 Bd6 Kb6 Kh5 Rea1 Bf5 Qc4 Ba8 Qd5 Nb7 h8R+ Rh7 Be8 Rh6 Bef7 Be4 Rh7 Bf5 Rg7 Bh4 Nh8+ Bg6 Be6 Bh7 Bef7+ Rg6 Qgh1 Kh6 Qh3 Rg2 Rg4 Rh2 Rgg1 Rg2 Rgc1 Rg6 Qf1 Bd1
3q1r1r/2Q2n1b/1nRBKbP1/QBnPR1Rp/N3rk2/B2b4/n7/3N1nN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d6 Qf6 Rh2 Kd7 Kf2 Ke6 Kf3 Kf5 b4 h5 d4 c5 d5 a5 d7 a4 d8Q a3 b6 c4 b7 a2 b5 c3 b6 c2 Qc7 h3 Qd2 Be7 Qa5 Nd7 b8N Nh6 b7 Nb6 Ba3 c1N g4+ Kg5 Ke4 f3 e3 f2 Bb5 f1B Rg2 h2 Na6 h1N Nc3 Bf5+ Kf3 Qd6 e4 Nf2 e5 Ne4 e6 Raf8 Nc5 Bh7 Nd1 f5 Na4 Bf6 e7 f4 e8R Nf7 Re7 Qd8 Re5+ Kh4 g5 Bd3 Ne2 Kh3 g6 Kh4 Rgg5 Kh3 Rb1 a1R Ndb2 Kh4 Ng1 Na2 Rc1 Rb1 Rc2 Re1 Rc6 Nc5 Nd1 Re4 b8B Qc8 Qd7 Qe8 Bd6 Qd8 Kg2 f3+ Kh2 f2 Qc7 f1N+ Kg2 Re1 Kf3 Re3+ Kf4 Re4+ Kf5 Nb7 Ne2 Kh3 Ke6 Kh4 Rf5 Kg4 Rg5+ Kf3 Ng1+ Kf4 Qe7 Nh2 Qd7 Nf1 Qc7 Nc5+
4q3/k2rNp2/b6R/1P1rBB1r/n1Q1RrK1/2QN1NRQ/1rn1P3/b1n2b2 w - - 0 1 illegal: No possible last move
k1B1brqn/3b4/N4qb1/B7/RB1Q1n2/2bN3b/R1Pp2PQ/1rR2rQK w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 e4 f5 b4 a5 b6 d5 g6 Kd7 b5 f3 b7 Kc7 g7 h4 e5 f4 e6 h3 e7 h2 e8Q a4 Qd3 a3 Qee3 a2 Qh7 d3 Bd2 d4 Qh3 Nd7 b8B+ Kb7 b6 Bb4 Qg4 Ne5 Qh5 Ng6 Qe1 Bh3 Qg4 N8e7 g8Q Bc3 Q4e6 Nd5 Bd6 Rb8 Qc8+ Ka8 Qg7 Rf8 Ne2 Nh8 Na3 Qe8 Rc1 a1Q Qcc7 Qd8 Rg1 h1R Bb4 Qa2 Qd6 Qf6 Nb5 Qb3 Qd1 Qc4 Be1 d2 Ba5 d3 Nc7+ Kb7 Na6+ Ka8 Ra1 Qa2 Qb1 d1B Nc1 Qc4 Ra4 d2 Nd3 Qb3 Qh7 Bd7 Qh2 Qc4 Be2 Qa2 Kf1 f2 Bg4 Qc4 Bf5 Bg4 Qc5 Be8 Qd4 Bh3 Bc8 Qb3 Ke2 f1B+ Kf2 f3 Kg3 Nb4 Bf2 Nd5 Ra2 Be2 Rc1 Rf1 Be3 f2 Bh6 Rf7 Bf8 Nf4 Bfb4 Beg4 Ra4 Bgd7 Ra2 Re1 Qa1 f1B Kf2 Bb5 Kg1 Bbd7 Kh1 Rf8 Qdg1 Qg8 Ra4 Be5 Qad4 Rb7 Qdf2 Bc3 Qd4 Be2 Ra2 B2h5 Ra4 Rc7 Ra2 Rc5 Ra4 Rf1 b7+ Ka7 b8R Bhg6 Rb6 Ka8 Re6 Rc6 Ree1 Rb6 Rca1 Qd5 Rec1 Qg8 R1a2 Rb8 Bd6 Rb3 Bdb4 Rb1
R1b3bb/N4nQn/1KB5/2r1N2P/Bb1Nr1Rb/2pR1Q2/k2q1P1B/4nq2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Ke3 b5 Kd4 g5 Kc5 e5+ d6 e4 d4 b3 h4 b4 a4 e3 d5 b2 a5 b3 a6 g3 a7 g4 f6 g2 Qd2 g3 Bb5 e2 Ra2 Nc6 Ra3 Ne5 Nc3 b1B Qf4 b2 h5 Ba2 Qc4 b1Q Bf4 Qf1 Rb3 e1N Nge2 g1B Ba4 g2 Qd4 Bh2 Bc1 g1B Bf4 Bg3 Nb5 B1h2 Rg1 Bh4 Rg4 Rb8 a8B Rh7 Nbc3 Rb4 Nb5 c6 Qe3 Re4 Qf3 Bg7 d7 Bh8 d6 Ke6 f7 Nf6 f8Q Rg7 Qd3 Rg5 Qg7 Nh7 Qf3 Qa5 Bg3 Qd2 Kb6 c5 Bc6 c4 d8R Bd7 Ra8 Bc8 Re3 c3 Na7 Rf5 Bcb5 Kd5 Bc6+ Kc4 d7 Kb4 d8N Ka3 Rd3 Bg8 Bf4 Ka2 Nf7 B2g3 Nd4 Bh2 Nd6 Nf7 Nc4 B2g3 Bb8 Bd6 Bc7 Ba3 Bh2 Rc5 Ne5 Bb4
1Nk1nq2/b5q1/4qB1Q/1n4qP/1Q2RNP1/1Q1r4/N1B2p1r/1bRKnR1q w - - 0 1 illegal: No proof kernel
7K/Nk4qn/2bnR3/1nqQ1p2/Bb3R2/N1P2r1r/RnPr2n1/3BBQQ1 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 h5 c4 h6 c3 dxc3 gxh6 Ra5 h5 Ra1 h4 Kf2 a5 Kf3 d5 g4 Kd7 b4 Kc7 e4 h5 g5 f5 e5 a4 b6+ Kb7 g6 d4 g7 d3 b5 h3 e6 h4 e7 d2 e8Q h2 Bg2 h3 Qd7+ Qc7 Ne2 a3 Qd5+ Nc6 Qf1 d1N Qg1 a2 Na3 Bd7 Bd2 Nf6 g8B Nh7 Be1 Nb2 Nd4 Rd8 Bf1 Qc8 Be2 Bb4 Bd1 Qc7 Qf1 Qd6 Bf7 Qc5 Be8 Rg8 Rg1 h1N Rg6 h2 Re6 Nf2 Qg1 h1R Qf1 Kb8 b7 Na7 Nc6+ Kc7 b8R Ne4 Ra8 Kb7 b6 Nb5 Ra4 Ned6 Na7+ Bc6 Bd7 Kb8 b7 Rh3+ Ke2 f3+ Kd2 Ba5 Rf4 f2 Qg1 f1N+ Ke2 Rh1 Kf3 Ne3 Qf1 Kc7 Be8 Kb6 b8Q+ Ka6 Qc7 Bb4 Qg7 Ng2 Qd4 Kb7 Qdg1 Ne3 Bd7 Rg2 Be8 Rd2 Kg3 Rhh2 Bd7 Rhf2 Kh4 Ng2+ Kh5 Rf3 Kg6 Rg8+ Kh6 Rgg3 Be8 Rh3+ Kg7 Nbc4 Kh8 Nb2 Rb1 a1Q Rc1 Qa2 Ra1 Qac4 Ra2 Q4d4+ Kg8 Nc7 Qe5 Be4 Ba4 Bc6 Kg7 Ncb5 Kh8 Qf2 Qd4 Qg3 Qd5 Qg7+
2b2N2/1Q1R2n1/q1b5/4Pb2/N1N1P1k1/B4r1p/BrQ1n1q1/1RbKbQqR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 b4 Ke7 c4 Ke6 g4 f5 g5 a5 b6 h5 e3 d5 b7 d3 c5 d2+ Ke2 a4 g6 f4 c6 Kf5 g7 h3 b5 h4 b6 h2 c7 f3+ Kf2 h3 Bb2 d4 Ne2 a3 Rg1 h1B Ra2 d3 Bd4 Bb4 Nc1 Nh6 g8R Qg5 Nb3 Nc6 Bc5 Nd4 b8Q Ne2 Rb2 a2 b7 a1B Nc3 Ra3 Rb1 Bb2 Na4 Bc1 Na5 Rh7 Qe1 d1B Nc4 d2 Rg7 Bc2 Rd7 d1Q Be7 Bg2 Rh1 Kg4 Qa8 Qd3 b8N Nf5 Qb7 Ng7 Qd1 Rc3 Ke1 Rh6 Bc5 Rb6 Bf8 Ba5 Ba3 Qd5 Qd3 Rb2 Qd1 Bh7 Qd3 f2+ Kd1 Qe6 Qc2 Bc6 e4 Bf5 Qb5 B8b7 c8Q Rf3 Qc7 Bc8 Qcb7 Bc3 Qb4 Ng1 Ncb6 Kh5 Rd6 Qd7 Qb5 Qg2 Bc4 Be1 Ba2 f1Q Q5a6 Qd8 N8d7 Kg4 Nf8 Qff2 Qf1 Ne2 Rd5 Qfg1 Rd4 Qd5 Rd3 Qc4 Rd7 Qb5 Nc4 Qa6
2b1QK2/1q1QN1B1/nq1R3q/k1BBpNR1/2r1Q2N/8/1n1qPP1b/3qr2b w - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 b4 Kd7 d4 h5 Kd2 a5 Kc3 g5 Kc4 c5 b6 g4 b7 Kc7 d6+ Kb6 Kd5 a4 d7 h2 Ke6 g3 Kf7 h4 d5 c4 d6 g2 b5 a3 Bh6 c3 Qc2 h3 Nf3 g1Q Qe4 c2 Nc3 c1Q Bg2 a2 Nh4 Na6 b8Q+ Ka5 b6 Nf6 b7 Qge1 Nd5 Ne8 Rg1 h1Q Ne3 h2 Bg7 Qed2 Nef5 Qb6 d8N e5 Rb1 a1Q d7 Rh6 Rb4 Rc6 Rd4 Rc4 Rd6 Qcb2 Qa7 Qad1 b8Q Qh6 Bf3 Qbd2 Rg5 Qg2 Qac7 h1B Qcb7 Be7 Q7c7 Bf6 Kf8 Ra7 Qg4 Rb7 Bd5 Qf3 Qe4 Qfb3 Rg1 Bg5 Rg2 Be3 Rg5 Bf4 Qa8 Bh2 Nc6+ Kb5 Nce7 Ka5 d8B Ra7 Re6 Nd6 Qd7 Rac7 Rf6 Qb7 Re6 Q3b6 Reg6 Rc1 Re6 Nc4 Rd6 Rc6 Bc7 Nb2 Bb8 Qbb3 Ba7 R6c4 Bc5 Q3b6 Qb8 Qdb3 Qa8 Re1 Qb8 Qbd1 Qa8 Qb8 Qac6 Qa8 Qe8 Qaa7 Qcd7 Qab7
KQB1qkqB/5rb1/nN1r3B/1P4RN/3P4/2Q1nq2/bpb4R/Rb2b2Q w - - 0 1 illegal: No proof kernel
N1b2r2/1Q2qnk1/1BnQ3r/1P2n2r/p1BNKR1R/2b3PB/1R3r1q/3r1N2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 d4 f5 e4 Kf7 b4 a5 e5 c4 e6+ Kg6 d6 h3 d7 h2 d5 h4 e7 a4 e8B+ Kh6 g3 h3 d6 c3 b6 c2 b7 Kg7 b5 Rh6 Bc4 Qe7 d8N Nc6 Be3 c1N b8Q Nd3 d7 Rh5 Ba7 Nh6 Ra2 Nf7 Nd2 Rh6 Qb7 Nde5+ Ke2 f3+ Ke3 f4+ Ke4 f2 Bb6 f1R Ne2 f3 Rb2 f2 Nd4 Rg1 Nf1 Rh5 Qd3 Rg2 Qa3 Rg1 Qd6 Rb8 Ne3 Rd1 Rf1 h1R N8e6+ Kh7 d8R h2 Nc7 Kg7 Na8 Rh6 Rg1 f1R Bd7 Rf2 Bh3 Rff1 Rd2 Rh7 Ng4 Qf6 Qa3 Be6 Ne3 Bb4 Bg2 Qe7 Rh8 Bc3 Rb2 Rf8 Qd6 Rf6 Re1 Bc8 Rf1 Rh3 Rf5 Rhf1 Rhh5 h1Q Rf4 Rf2 Nf1 Qh2 Rh6 Rh4 Rh5 Rh6 Bh3 Rg4 Rh4 Rg5 Bd3 Rf5 Bc4 Rfh5
5RNN/2qN4/P1k5/1rP1nnb1/Bq2rB2/Rpb2bRb/Q2K2b1/r4Q1Q w - - 0 1 illegal: No possible last move, all moves rejected
1NR2Nk1/qb3bP1/1NBQB2b/Pqr4r/4b3/n3p2R/5nQ1/2bKnRB1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kf7 f4 b5 a4 h5 g4 c5 f5 e5 d6 c4 f6 c3 d7 c2 a5 b3 d5 b4 d6 h4 Bg2 b2 Qd2 h3 Qe2 h2 Ra3 b3 Nd2 b1B Qf1 e3 Ne2 b2 Nd4 e2 Nc4 e4 Nc6 Qc7 d8R Nh6 d7 Qa7 g6+ Kg8 g5 Ba2 g7 b1Q Nb6 Ng4 Rh3 Bb7 Rc8 Nf2 d8Q Bf7 Qd6 Na6 Nb8 Qb5 Be3 c1B Bf3 Rh6 Qg2 Nc7 Rf1 h1B Bc5 Rh5 Bd4 Kh7 g8B+ Kh8 g6 Bfh6 Qgh2 Qf5 Qhg3 Nb5 Qg2 Na3 Be3 Qb5 Bc5 Be8 f7 Kg7 f8N Kh8 Ba2 Bf7 g7+ Kg8 Nc6 Rb8 Be6 Ra8 Rd8 Rc8 Nb8 Rc7 Rc8 Rc6 Be3 Rcc5 Bd4 Ng4 Bg1 Nf2 Qgg3 Bg2 Qg5 Bh1 Qg2 Bb2 Qg5 Bg2 Kd2 Bh1 Bg2 e1N Bf3 Rc4 Ke2 e3 Bc6 Be4 Qg6 Bc1 Qg2 Nfd3 Kd1 Rc2 Bed7 Rcc5 Be6 Nf2+
3Q1b2/Rb1Pn2q/BpkP3N/B3q2N/3rRqK1/3Q3N/3n2Rr/1B2rq1q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 c5 a4 e5 d4 h5 g4 b6 f6 c4 a5 b3 g5 c3 g6 h3 f7 b2 d6 h4 g7 c2 a6 e4+ Kg4 e3 f4 e2 f5 e1R f6 h2 a7 h3 d5 Rh7 Nc3 b1Q Nce2 Ba6 Qd3 Rh6 Bd2 c1Q Ba5 Qb3 Nf4 Bb7 Nh5 Ne7 g8N Rh7 Nh6 Qe8 Ra4 Qbc2 Re4 Nbc6 Be2 Bg7 f8Q Rd8 a8B Nd4 f7 Nb3 Qg8 Q2d1 f8R Nd2 Rf2 Bf8 Rg2 Qa4 Qg5 Qca1 Qh4 Qe5 Qf6 Qf7 Qh4 Qf1 Qf6 Bc6 Bb7 Qc4 Ba6 Bb7 Bd1 Qc1 Bc2 Rh8 Bb1 Qc7 Ne2 Qb8 Rhg1 h1Q Nef4 h2 Nh3 Qc7 Kh4 Rh7 Rg7 Qhf3 R1g2 h1Q Qg5 Qff6 Kg4 Qg6 Rf7 Rh8 Rg7 Qh7 Nf2 Qc1 Qh4 Nf3 Nf5 Bc8 Nf4 Qg6+ Qg5 Rh3 Nh6 Qh7 Nh5 Rh2 Nh3 Qe3 Rf7 Nd2 Qg8 Bg7 Qh8 Rf8 Ref4 Q3d4 Rf6 Nf5 Rf7+ Kd8 Rb7 Ne7+ d7 Qde3 Rb8 Kc7 d6+ Kc6 Ra8 Bb7 Rb4 Rf7 Qe8 Bf8 Qd8 Qef2 Ra7 Rf3 Qe2 Rd3 Re4 Rd4 Qd3 Qff4+
3Q4/nrP1b3/1r1qq3/1p2N3/2BqqN1B/2N2qR1/n1b3PQ/k2BKRrR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 a4 Kf7 f4 b5 c4 h5 c5 d5 g6+ Kf6 a5 e5 g7 h4 c6 d3 c7 b3 a6 d2+ Ke2 h3 a7 e4 Nf3 d4 Ra2 d3+ Kf2 h2 Ne1 e3+ Kg3 b2 Nf3 e2 Kf2 Na6 Nc3 b1Q Qa4 d1Q Nh4 d2 Nf3 Qd6 Ne5 Rb8 a8N Nb4 Nb6 Rh6 Ra3 Ne7 g8B Qe4 Bb3 Na2 Qb4 e1R Bfc4 Rb7 Qc5 Qh5 Bd1 Nc6 Bb2 Qe6 Qd6 Be7 Ba1 Rg1 Nbd5+ Kg7 Rb3 Na7 Qd8 Bd7 Ra3 Be8 Bb2 Bg6 f6+ Kh7 f7 Kg7 f8R Qhf5 Bh5 d1Q Qd6 Qff7 f5 Qff6 Bc1 Qdd4+ Be3 Qff7 Nf4 Kf6 Bd1 Bh7 Qd8 Qed6 Rg8 Qfe6 Rg3 Re1 Rf1 h1Q Rb3 Qh4 Rb1 Qg4 Rh1 Rg1 Ra1 Kg5 f6 Kf5 f7 Qh5 f8Q+ Rf6 Bf1 Qhf3+ Ke1 Bg6 Qh6 Bh7 Qh2 Rh6 Nd7 Rg6 Nb6 Ke5 Rc1 Rh6 Nc4+ Kf6 Rg4 Qe6e5 Nb6 Qdd3 Nb1 Bg8 Nc4 Qdc5 Bb3 Kf5 Rd1 Rhb6 Rg6 Q4d4 Nc3 Qcd6 Rb1 Qef6 Ne5 Bh7 Bf2 Qfe6 Bh4 Qc2 Rg3 Bg6 Ncd5 Ke4 Nc3+ Ke3 Rb2 Qcf5 Rf2 Qg4 Bd1 Bc2 Nfd3 Qge4 Na4 Q4c5 Nf4 Kd4+ Kd2 Qcd5 Bfe2 Q5c5 Rf1 Qcc4 Ke1 Qcd5 Nb2 Kc3 Na4+ Kb3 Nc3 Kb2 Nc6 Ka1 Ne5 Qed4 Bc4 Q5e4+
2n3Q1/2Pqpq2/r1Q2QR1/nB1B1bb1/2Nr4/1r1rN2n/1R2P2k/NRKr4 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h6 g6 Qc7 g7 Qd8 g4 Rh7 g5 Rh8 g6 Nf6 Bf4 Ng8 Bg5 hxg5 Kd2 d5 c4 Kd7 h4 Kd6 b4 Ke5 h5 Kf4 b6 Kg3 b5 a5 b7 f5 c5 a4 h6 g4 h7 a3 c6 f4 c7 a2 b6 d3 Nc3 d4 Nh3 f3 Ng5 f2 Rh4 Ra3 Qb1 Bf5 Kd1 d2 Qc2 Nc6 b8N Nf6 g8Q Ne4 b7 Bh6 g7 Qd7 Ne6 Nd6 Nc5 Na5 Nb3 Nc8 Nc6 Bg5 Rb1 a1R Bh3 Kh2 b8R g3 Ne5 g2 Nc4 g1N Rh6 R3a2 Bg2+ Nh3 Bc6 Ra3 Qe4 f1Q+ Kc2 d1R Bb5 Ra4 Rg6 Rd3 Nd5 R1a3 Na1 Rab3 Nde3 Qf4 Qgd5 Rd8 h8Q Rd2+ Kc1 d3 g8B Qf3 Qb2 Qh5 Rh6 Qf7 Qf6 Raa3 Rg6 Ra4 Nd6 Rd4 Rb7 Ra2 Nc4 d2+ Kd1 Ra4 Qg4 Raa3 Qdc6 Rdd3 Kc2 d1R Rb8 R1d2+ Kc1 Qh7 Bd5 Qf7 Qh4 Rd4 Qh7 R2d3 Rb7 Ra2 Rb6 Rad2 Qhg7 Rh8 Qg8 Rh6 Rb2 Rhh4 Nec2 Nb7 N4a3 Ra4 Rb1 Rhd4 Ne3 Ra6 Nac4 Na5 Ba4 Ra3 R6b2 Rab3 Bb5 Rd1+
5NN1/kPqnNQ1Q/7K/B2p1rq1/P5r1/Rn1B4/2B1nb2/1RQnnbb1 w - - 0 1 illegal: No possible last move, all moves rejected
2R5/qp5B/4b3/1Pn1b1r1/P1Br1BRN/1N1QK1Qq/1k1nn3/1bNQn2n w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 Ke2 Kd7 f4 Kd6 a4 Kc5 d4+ Kc4 g4 Kb3 d6 h5 f6 e5 f5 c5 g5 h3 d7 h2 g6 h4 f7 c4 g7 h3 d5 e4 f6 c3 d6 c2 Bd2 c1N+ Ke3 Kb2 Bd3 b3 Ne2 Rh4 Bc4 Qa5 d8Q Nd7 Rg1 h1Q Rg4 Nc5 d7 Bd6 f8N h2 f7 Be5 Ng6 Nf6 g8B Qa7 f8Q Qf1 Qfe7 h1N Qg7 Rb8 Bh7 Qh3+ Ng3 Rh5 Nh4 Rg5 Ra3 Ne2 Bc1+ Kc2 Nd2 b2 Nb3 b1B Qg6 Kc3 Qc7 Kc2 d8Q Be6 Qd1+ Kc3 Bd2+ Kb2 Qd7 Rd8 Qd3 Rd4 Ra1 Bc2 Rc1 Bb1 Bd5 Ncd7 Rc8 Nc5 Bc4 Nfd7 Nc1 Nb3 Qg7 Ndc5 Qg8 Qf1 Ngf5 Qh3+ Rg3 Rd7 Nd4 Rg4 Qg6 Nf4 Qg8 Ng2+ Ke2 e3 Qg7 Nf4+ Kf3 e2 Be3 Ng2 Bh6 Nf4 Ke3 Nd2 Ndb3 e1N Qg8 Ne2 Bf4 Rg5 Qg7 Rf5 Qg4 Rh5 Qf3 Rg5 Rg4 Rd6 Qg3 Rd4
2b3k1/P2B4/1rnn1BK1/NR3Q1n/1b1Pn3/n1qR2QN/1RN2B1p/4nrn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 b5 f4 c5 a4 c4 d4 h3 a5 h2 g5 h4 g6+ Kg7 d6 b3 d7 h3 a6 b2 a7 c3 Qc2 b4 Ra2 b3 Bb5 Qa5 d8N Bb4 Nb7 Nc6 Be3 Nh6 f6+ Kg8 f5 Rb8 g7 Nf7 Na3 b1N Bf2 b2 Ba4 Qc5 Na5 Rb6 Qb3 c2 Qg3 c1N Nc2 Ne2 Ra3 Rb5 Rd3 Rb6 Bb5 Na3 Ba4 Kh7 g8R b1N Rg5 Qc3 Bb5 Rf8 Ba4 Nfd8 f7 Nb7 f6 Kh8 Bb3 Kh7 Be6 Nd2+ Kf5 e4 Bd7 Kh8 Kg6 e3 Rb5 Nd6 Nf3 N2e4 Rb1 h1N Ng1 h2 Nh3 Ng1 Rb2 Re8 f8B e2 f7 e1N Bh6 Re5 Bg5 Rf5 Kh5 Kg7 f8Q+ Kh7 Qf6 Kg8 Kg6 Rf4 Qf5 Rf3 Qgf4 Nhg3 Bf6 Nh5 Qg3 Rf4 Be3 Rf1 Bf2 Bb7 Bd8 Ba6 Bf6 Bc8
6N1/1bR3q1/nn2b2B/2q1B1r1/q2QrN2/1P1qRpRB/QK3P2/Nb4nk w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 g4 Kd7 b6 Kd6 b7 Kd5 g5 Ke4 d5 h5 g6 f5 g7 a5 d6 e5 d7 h3 Kb3 h4 c4 h2 c5 f4 c6 a4+ Ka2 h3 c7 a3 Qb3 d1Q Qc2 Nf6 g8N Na6 b8Q Rh5 Qb6 Qf8 d8B Qc5 Nf3 Nd5 Kb3 a2 Be7 Be6 c8R Rg5 Rf8 Re8 Rg1 h1B Qd6 h2 Na3 Nb6+ Nc4 Bg2 Qc7 h1B Bf6 Qd2 Rb1 a1Q Qd8 Qda5 Ne1 Q5a4+ Kc3 Bgh3 Be3 Bhf5 Ng2 Kf3 Qd4 d2 Rf7 d1Q Rc7 e4 Be5 Bh7 Bd2 e3 Qb3 e2 Qa2 e1N Rc1 Qd5 Na3 Bb1 Nc2 Qe2 Rd1 Qeb5 Be3 Re7 Rd3 Qdc5+ Kd2 Qd7 Kc1 Re8 b3 Qac3 Rd2 Qd3 Kb2 Qg7 Re2 Bd7 Bd6 Re4 Be5 Be6 Na1 Nc2 Qc3 Nd4 Re1 Ne2 Qd4 Kg4 Bc1 Kh3 Be3 Kh2 Bd2 Nc3 Re3 Ne2 Nh4 Nb4 Bh3 Na6 Rgg3 Ng1 Ng6 Bf3 Bc1 Kh1 Bd2 Bfg4 Bc1 f3 Nf4 Bc8 Bd2 Bge6 Ng6 Na8 Re1 Rf5 Bh6 Rg5 Nf4 Nb6 Re3 Bb7
1qk1r1nN/1Nnb1K1B/4R3/Q1r1B3/6P1/pP1rqRQ1/r1Bnq3/Q4Rb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Kg4 c5 Kh5 f5 e4 c4 d4 a4 g4 f3 b3 h6 Kg6 a3 d6 f4 b6 c3 e5 h5 d5 h3 b7 h2 e6+ Ke8 d7+ Ke7 Nh3 f2 Ng5 h4 Nf7 h3 Bb2 c2 Bd3 f1N Nc3 c1Q Na4 f3 Be5 f2 Bc2 Rh5 Nc5 Qe3 Nh8 Na6 b8Q Nc7 Nb7 Nd2 Rf1 h1R Ra2 h2 Qa1 Bh6 Rb2 Qf8 d8R Bd7 Rbb1 Rg1 Rbe1 h1R Re2 Qff4 Rf8 Rg3 Ree1 Qb4 Rf3 R1h2 Re2 Qbf4 Ree1 Qf8 Re2 Qc8 d6+ Ke8 e7 Bg5 Rg1 f1Q Re1 Qfe2 Rgf1 Bb5 Kg7 Kd7 Kf7 Bh4 Bh7 Rgh3 Bc2 Bf2 Bh7 Bg1 Bc2 Kc6 d7 Kb6 d8Q Bd7 e8B Rg3 Bf4 Rc5 Be5 Kc6 Qh4 Qd8 Qa7 Qb8 Qa5 Rgh3 Kg7 Rf2 Beg6 Rg2 Bh7 Rhg3 Nd6 Rh3 Qg3 Rf2 Ndf7 Kb7 Nd8+ Kc8 Kf8 Rh6 Nb7 Rd6 Kf7 Rd3 Qb6 Ra6 Qa5 Re6 Rf6 Rg2 R1f3 Re8 Ref1 Rh2 Re6 Nc4 Bd1 Qe1 Qf4 Ra2 Qg3 Q1e2 Bc2 Nd2
b3r1N1/2RRBqq1/qr2Q2R/8/b1Qp1n1q/1N5r/1bP1P1kB/K2BQ1n1 w - - 0 1 illegal: Other
2nq3b/1q5b/BN1r1NB1/k1r1KN2/b2p2R1/Brn2PQ1/P1Qn3Q/R4b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 g5 Kd3 d5 c4 Kd7 h4 Kc7 h6 Kb6 f6 e5 c5+ Ka5 h7 b5 f3 b3 c6 g4 c7 e4+ Kd2 b4 f7 g3 h5 b2 h6 g2 Kc2 b3+ Kd2 d3 Kc3 e3 Kd4 d2 Qe2 d1B Nd2 b1B Ke5 b2 Kd4 Na6 Nh3 g1R Nf2 Ba4 Rh4 Nc5 Nde4 Bh3 c8B Ne7 Ba6 Rb8 Nd6 Nb3+ Ke5 d4 Rg4 Nd2 Nfe4 Rb3 Nf6 Bg7 f8N Nc8 Nd7 Rh1 Qf2 e2 Nf5 e1Q+ Bfe2 Qd1 Nb6 Bf1 Bed3 Rh5 Qg3 Rg8 Bc2 Bh8 Be4 Rg6 Bc2 Bg7 h8Q Rhg5 Qe8 Bh8 Qc6 Qe2+ Be4 Qb5+ Qc5 Bc2 h7 b1N Ba3 Nc3 Bd3 Rg7 Be4 Rd7 Bd3 Rd6 Be4 Bg7 h8Q Bcd3 Qhh2 Bh8 Bd5 Rh5 Qc4 Qbd7 Bf7 Qb7 Qc6 Bc4 Bg6 Bg8 Qe4 Bh7 Qc2 Rg5 Be8 Rg7 Bh5 Rc7 Bg6 Rc5+
n7/QR1qr1nk/1n5N/1Kb1Qq1b/P2Q1q2/1P1N3n/4RNrp/B2rRB2 w - - 0 1 illegal: No proof kernel
5qB1/BnQbb3/3rN1Q1/1R4nP/2Q4P/3rp2k/2RbN2r/qqNKR2q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 c4 Kf7 b4 Ke6 b6 Kf5 h3 e5 f3 a5 c5 g5 c6 d5 b7 g4 b5 a4 b6 e3 c7 g3 Ne2 g2 Na3 g1Q Rb1 d3 Nc2 e4 Nf4 d2+ Ke2 a3 Rb5 a2 Na1 Bd7 c8Q Ra3 Nb3 a1Q Qc4 Nh6 Qdc2 Na6 b8R d1R b7 Nc5 Rc8 d4 b8Q Nf7 Qc7 Be7 Bb2 Qe8 Nc1 Qf8 Bg2 Qh2 Re1 Qh1 Qb1 Ng5 h4 Rh6 Bc3 Rd6 Ba5 Rdd3 Bb6 Ra5 Ba7 Ra2+ Qbc2 Rc3 Kd1 d3 Qb1 d2 Nfe2 Rcd3 f4 Kg4 f5 Nb7 f6 Rb2 Bf3+ Kh3 f7 Qd8 f8N Ra2 Ne6 Qf8 Ng3 Rc2 Rb4 Ra2 Rb2 e2+ Kc2 e3 Rb8 Qf7 Nf8 Qf6 Bd5 Nc5 Nb3 Rd4 Rb5 Nb7 Bg8 R4d5 Ne6 Qf8 Kc3 d1Q Qg6 Qdb1 Nc1 Ra4 Q4c6 Rf4 Qc4 Rf2 Kb3 Rh2 Kc3 Qba2 Kc2 Rd4 Rd1 e1B+ Nge2 Bd2 Re1 R4d5 Kd1 Rd3 Rc2 Q2b1
4Q3/K4R1B/1R1Rqr1B/3Q1Pr1/3pbqQN/1q3n1N/4qPbb/knn3N1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 d5 g4 h5 b4 a5 c4 a4 g5 a3 b6 h3 b5 h4 g6 a2 b7 d3 g7 d2 b6 h2 Kb5 Kd4 c5 e5 c6 h3 c7 e4 Qf3 d1Q Bd3 e3 Nd2 Kc3 Bb1 d4 Ba3 Qd6 Bc2 Ne7 g8N Nbc6 b8R Rh5 b7 Qe6 Kb6 Rg5 Bb4+ Kb2 Nb1 e2 Qg4 e1Q Nh6 Qe1e2 Nd2 Ne5+ Bd6 Ra3 Bb3 Nf3 Nf7 Ra8 Rc1 a1N Rc6 Qc1 Bc4 Nb3 Bf4 Ka1 Rd6 Qc2 Be3 Nc1 Bd5 Bd7 c8Q Bc6 Qd7 Ra5 Bc4 Be4 Qd8 Re5 Ka7 Nd5 Bf4 Nc3 Qa5+ N1a2 Qd5 Nc1 Ba2 Bg7 Rf8 Qcd1 b8Q Nb1 Qe8 Bf6 Bc4 Qb3 Be3 Bd8 Rb6 Bc7 Rd6 Rg7 Bh6 Rg5 Rb6 Qe7 Rd6 Re6 Rb6 Rf6 Rd6 Ne5 Ndf3 Qe6 Nh4 Nf3 Ne5 Qee3 Nd3 Qf4 Rb6 Bd6 Rf7 Be5 Ne2 Bc7 Re1 h1Q Ng1 h2 Re2 Qd2 Nf4 Bd6 Re3 Qe2 Nfh3 Qg2 Rc3 h1B Rc2 Bh2 Rb2 Qbe3 Rd6 Qf4 Rbb6 Qgg3 Qdb5 Qd5 Rc7 Nfd2 Ba2 Qde5 Bg8 Qe6 Qd5 Bhg2 Rf7 Qb3 Bh7 Nf3
2QnrR2/3NB2N/K1b1Q1Bb/2q1bP2/nPB3Q1/3r2r1/pk2qNq1/r6R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 f4 Kd6 b4 e5 g4 h5 d4 c5 b6 a5 b7 a4 f5 c4 g5 c3 g6 c2 g7 e3 Kd3 a3 Kc4 e4 Kb5 e2 Bg2 e1Q Qg4 a2 Rh2 e3 Nc3 e2 Be4 h3 Be3 c1B Bg2 h4 Nb1 Ne7 g8B Nd7 b8N Nc6 Bd2 Bg7 Bf3 Be5 Nc3 Qf8 Bg5 Ra3 Nd1 Nc5 Nd7 Bb7 Nf2 Nd8 Rg2 h2 Ngh3 h1R Be7+ Kc7 Bh7 Rd3 Bg6 Na4 Ng5 h3 Nh7 Bc6+ Ka6 h2 Be4 Rg3 Bd3 Bh6 Bc4 Rf1 Rb1 h1Q Rg1 Qg2 d6+ Kc8 d5 Rd3 Ng5 Rg8 Nh7 Qd1 Rc1 e1R Rh1 Ree3 Rc2 Rg3 Re2 Qc2 Re3 Ra1 Re4 Bf6 Re6 Be5 Rf6 Qe8 Rf8 Rh8 Nb6+ Kb8 d7 Qe2 d6 Qf7 Rb1 Qfd5 Rh1 Qc5 Nc8 Ne6 d8Q Ka8 Qc7 Nd8 d7 Rg8 Qd6 Rh8 Rf6 Re8 Qe6 Kb8 Rf8 Kc7 Qf7 Bd5 Nb6 Bc6 Bh4 Kd6 Bf6 Bef4 Be7+ Ke5 Qg8 Kd4 Qe6 Nb7 d8Q+ Kc3 Qc7 Kb2 Qcc8 Be5 Nd7 Nd8
R2q2Qr/3Nb2K/Q2qR2B/q2kPBr1/3r4/Pb2nN1N/3pn2n/R3nB2 w - - 0 1 illegal: No possible last move
r1Kbk1B1/7r/7Q/QbP1NnN1/1RQ1pq2/2nP1q2/R1qB3N/Bbr3q1 w - - 0 1 illegal: No proof kernel
2RnbR2/1N4b1/B1nnqr2/2P3BK/1p1b4/b1NQrN2/q2P2BQ/k1rQ4 w - - 0 1 illegal: No proof kernel
8/bk3r2/bn3n1N/q1PR2pr/N1QR1B2/1q1B1QB1/n3b1P1/R2rKb1Q w - - 0 1 legal: proof: e4 c5 h4 b5 a4 f5 axb5 Qc7 d4 cxd4 exf5 Qf4 Bd3 Qxh4 Bf1 Qh2 b4 Kd8 f4 Kc7 c4 g5 b6+ Kb7 f6 d5 b5 a5 f5 e5 f7 h5 f6 a4 Ba3 h4 Be2 d3 Kf1 e4 Qb3 d2 Bc5 d1B Be7 a3 Nh3 a2 Qa3 e3 Bg4 e2+ Kf2 e1N Nc3 d4 Qb3 d3 Be2 d2 Bd6 Nd7 Bd3 Rh7 Bf4 Nc2 Na4 Be2 Rhd1 Nb4 c5 Bd6 f8R Bb8 f7 Ngf6 Rh8 Ba7 f8Q Bf1 Qc4 Rf7 Qh6 Qh1 Re8 Qh2 Re5 Rb8 Rd5 Qg3+ Kg1 Qe3+ Nf2 h3 Rd4 Qe6 Ng4 h2+ Kf2 h1R Qh3 Qd5 Qf3 Rh5 Nh6 Ra8 Rdc1 d1B Ke1 Bde2 Rd1 Rb8 Rd2 Ka8 Rdd1 Ba6 Bg3 Re8 Rd2 Re5 b7+ Kb8 Bf4 Nb6 Rdd1 Kc7 b8B+ Kb7 Bg3 Re8 Bbf4 Rd8 Rd2 Na8 b6 Rd6 Rc1 a1Q Rdd1 Qa3 Ra1 Na2 Rd2 Qb3 Rdd1 Qc6 Rd5 Qc7 Rd4+ Kb8 b7 Qa5+ Rd2 Kc7 Rd5 Kc6 b8Q Nb6 Qe8+ Kc7 Qe6 Kb7 Qh3 Re6 Qh1 Re3 Bb1 Rc3 R2d4 Rc2+ Qb4 Rb2 Bd3 Rd2 Qc4 Rd1+
1b1k2n1/2n1q2N/2Rq2rn/1pq1bQ2/1r2K2B/3r1PQ1/1P2Q1R1/NR2nN1B w - - 0 1 legal: proof: e4 d5 a4 f5 h4 fxe4 c4 g5 cxd5 gxh4 a5 b6 a6 Bb7 axb7 Bg7 Ke2 Bh6 Ke1 Bf8 Ke2 c5 Ke3 e5 d4 h5 g4 a5 f3 b5 d6 h3 d5 c4 g5 c3 g6 h2 g7 a4 Nh3 a3 Rg1 h1Q Bg2 a2 Qd3 c2 Nc3 h4 Nf4 h3 Qf1 h2 Bd2 c1Q Nh5 Ra6 Qf2 Qe7 d7+ Kd8 Qe1 Rg6 Nd1 Na6 Rb1 a1R Ng3 Nc7 Qe2 Qc6 b8N Qcd6 Be1 Ra6 Nf1 Ra3+ Nc3 Rhh6 Na6 Rb3 Nb4 Rh4 Nc2 Rf4 Kd2 e3+ Kd3 e4+ Kd4 Rf5 Bh4 Rf4 Na1 Rff6 Qe1 e2 Qf2 e1N Qe2 e3 Ne4 Re6 Ng5 Ref6 Nh7 Re6 Qd1 e2 Qc2 Ree3 Qf5 Nf6 g8Q Rec3 Qge6 Bg7 Qee4 Ng8+ Qee5 Rd3+ Ke4 Qg5 Qg3 Be5 Bh3 Qgf6 Rg2 Qg1 Nc2 h1N Na1 Ke7 d8R Qgc5 Rb8 Qg5 Rb6 Kd8 Ra6 Qge7 Rc6 Qdf6 d6 Qfe6 d7 Qed6 Qfg4 Nf2+ Kf5 Nd1 Ke4 Ne3 Qf5 Ng4 Rf2 Ne8 Bg2 Nc7 Bh1 N4h6 Rg2 Nc2 Qf2 e1B Qe2 B1g3 Qd2 Bd4+ Qe5 Na6 Ne3 Ne1 Rc7 Qe6 Rc6 Q6f6 Qe6 Bb8 Nf1 Nc7 Qe2 Be5 Qg4 Qed6 Qf4 Ke7 d8Q+ Ke6 Qf8 Kd7 Qg5 Qfe7 Qff5+ Kd8 Qg3 Rb4#
2qB1NQ1/b3BR1r/2KN4/P1b1r1n1/3qN3/r2BQn2/P1Qp3R/k2r1b1n w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 h4 gxh4 d4 cxd4 Ke2 Kf7 Kf3 Kf6 Ke4 d5+ Kd3 Ke5 c4 h5 g4 b5 g5 b4 g6 h3 f6 h2 c5 b3 f7 h4 g7 h3 f3 b2 c6 Ba6+ Kc2 d3+ Kc3 d4+ Kb4 d2 Kc5 d3 c7 Rh7 c8N Nf6 g8Q Ne4+ Kb4 Kd4 f4 e5+ Ne7 Nc6+ Ka4 Qc8 f5 Ng5 f6 e4 Qf3 d1R Nd2 Kc3 Ng6 b1Q Nc4 e3 Nd6 e2 Qe3 e1B Nf3 Qb2 Nd2 Bf2 N2e4+ Kc2 Bd2 Nd4 Bb4 Be7 f8B d2 f7 Ndf3 Bc3 Ra7 Bf6 Qd4+ Bc4 Kb2 Rb1+ Kc2 Rb7 Ra8 Ra7 Kb2 Rc7 Ka1 Kb4 Qb2+ Kc5 Qd4+ Kc6 Rb8 Bf1 Rb3 Bd3 Rh5 Qh7 Ra3 Qg8 Nh7 Bh4 Re5 Bf6 Nhg5 Qh7 Bd8 B8e7 Bg1 f8Q Bf2 Re1 h1N Qfg8 h2 Nf8 Bg1 Bc2 Bf1 Re2 Qg4 Rb7 Bb6 Bd3 Bc5 Bd8 Qe6 Bfe7 Qc8+ Rc7 Nf2 Qhg6 h1R Q6h7 Rh6 Qf5 Nh1 Rh2 Rh7 Qfg6 Ba7 Qf5 Re6 Qc5 Bf2 Qc2 Re5 Qe2 Rh5 Bf6 Qb4 Qe1 Bfc5 Qe3 Qcb8 Rg7 Rh7 Rf7 Qd4 Bfe7 Qc8+
QK5r/Qn2k2N/2QnB1Bp/1R1r4/qNP5/nbB1n3/5R1P/2bqqN1r w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 fxg4 Ke2 g5 Ke3 e5 c4 a5 f4 a4 d4 h6 b6 g3 d5 g2 c6 a3 b7 a2 d6 g4 f5 g3 f6 Bg4 c7 Nd7 b8Q Ne7 c8B Ra5 Na3 Rd5 Bb2 Qa5 Qa4 Bd1 Qa7 Bb3 Qc6 Qa4 Ne2 g1R Bc3 g2 Rb1 a1N f7+ Kd8 Rb2 Nc5 d7 Nb7 Ng3 Bg7 f8N Nf5+ Kf2 e3+ Kf3 e4+ Kf4 e2 Nc2 e1N Bd3 e3 Nh7 e2 Nf1 Bf6 Nb4 Nfd6 Bg6 Nec2 Rb1 e1Q Rb2 Ne3 Rf2 Ne8 Ke4 Nac2 Kf4 Rh5 Ke4 Bg5 Ke5 Na3 Ke6 Ned6 Ke5 Nef5+ Kd5 Na5 Kc5 Ke7 Kb6 Qd1 Kc7 Ne3 Kb8 Bf4 Bb1 Nab7 d8Q+ Kf7 Qda5 Ke7 Bg6 Rg5 Qad5 Qe1 Qg8 Rd5 Be6 Qd1 Nd2 Re1 Nf1 g1Q Qgc8 Qg3 Rg1 Qh4 Rg5 Qg3 Nd2 Rh1 Nf1 Rd2 Rb5 Rd5 Rf3 Qge1 Rf2 Ng2 Kc7 Bc1 Qca8 Nc8 Kb8 Ne3 Bef5 Nd6+ Bc8 Kd8 Be6 Ke7+
1Q2NQ1N/B2R2qk/2Rq2np/rB3bPP/1R3nN1/1q1nB3/5b2/2rK2nb w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 g4 a5 d4 e5 h4 f5 c4 Kf7 b6 Kg6 c6 e3 c7 a4 g5 a3 d5 e2 b7 f3 c5 h6 d6 a2 h5+ Kh7 d7 e4 c6 f2+ Kd2 e1N Ba3 f4 Qf3 e3+ Kd1 e2+ Kd2 Bc5 Rh4 Ne7 Qg3 f3 Rb4 Nd5 Nh3 Ra5 Nc3 Nd3 Nb5 e1N Rd1 a1Q Bc1 Qg7 Nd6 N5f4 Ne8 Rf8 Be2 f1B Nf2 Bg2 Ng4 f2 Bf1 Qde7 d8N Bh1 Nf7 Bf5 c8Q Nd7 b8B N7e5 c7 Qd6 Ba7 Neg6 Nh8 Nf3+ Kc2 Rf7 Be3 Ng1 Qa8 Rd7 c8R Rc7 Qgf3 Rc6 Qb8 Rc7 Be2 f1Q Rd2 Qh3 Kd1 Bb6 Bf1 Rc2 Rc6 Qg2 Qf2 Qgd5 Be2 Qb3 Qf1 Nc1 Bb5 Bc5 Rdd4 Ncd3 Qf2 Qde6 Rd7 Qd6 Qf3 Bb6 Qe4 Bc5 Qe7 Bd4 Qf8 Bb6 Bc1 Bf2 Bce3 Rc1+
2RbNBbk/q1RN4/5bPP/q1rQ3B/3n2q1/2p1B3/r3Q2r/n1r2NKR w - - 0 1 illegal: No proof kernel
bK2Q3/rr1BB1q1/bR1N2pq/1PB1N3/b2R1bP1/r1R1Q1n1/3Q4/4nkq1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 h4 Qb3 Rh6 Qh3 Rh8 Qg3 hxg3 h4 Kd7 d4 Kd6 Kd2 c5 Kc3 f5 Kc4 a5 b4 f3 e4 g6 h5 f2 h6 a4 b6 a3 Kb5 g2 h7 c4 b7 a2 Rh6 f4 Ba3 c3 Rh5 c2 Nd2 c1Q Rh3 Na6 b8R Ra7 Ngf3 g1Q Ne5 Qdc7 Rc3 Qg7 Kb6 f3 Bb5 f1B Bd7 f2 b5+ Nc5 Rb1 a1R Rb4 Ne7 Rbc4 Rg8 h8Q Bd3 Qh3 f1B Qe3 Bg2 Ra4 Nf5 Ndc4+ Ke7 d6+ Kf6 d5 Ng3 Rb7 Bc2 Kc7 Nd3 Bc5 Ra3 Kb8 Ne1 Rb6 Bf3 Nd2 Bb7 Rd4 Ba4 Ndc4 Ba8 Bc6 Rh8 d7 Rh7 d8Q+ Be7 d6 Bb7 d7 Ba6 Qd3 Kg5 Nd6 Kh4 Qe2 Kh3 Qe3 Bh4 Qdg5 Kg2 d8B Rc7 Bd7 Kf1 Be7 Ra7 Qh6 Bg5 Qh2 Bf4 Qhd2 Bc8 Nec4 Bh1 e5 Ba6 e6 Ba8 Ne5 Qh1 Bh4 Ng2 e7 Ne1 e8Q Bh6 Qh2 Qf8 Bc6 Rhc7 Qe4 Qg1 Be7 Qg7 Bd7 Qg5 Qd2 Qh4 Nb7 Bf4 Qee3 Qhh6 Nd6 Rcb7+
4r2N/Rq1n1qr1/2q2PbR/QnQb3P/1p2b2N/2r1b3/Q2RK2k/1NB4B w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 a4 Kf6 f4 d5 c4 b5 c5 e5 h6 g5 c6 b3 c7 g4 a5 d3 h5 d4 h7 g3 a6 e4 a7 e3 Qg4 d2+ Ke2 d1B+ Kd3 e2 Bg2 e1Q Be3 b2 Bb7 g2 Bd2 b4 Qg3 Qee8 Nh3 g1R Qf2 Qd5 Qf3 Qdc6 Qd5 Bc5 Na3 b1B+ Nc2 Be6 c8R Nd7 Bc1 Qf7 Qa2 Bf3 Ng5 Bed5 Rh2 Bfe4+ Ke2 Nh6 Nf3 Re8 h8N Rg7 Na3 Bb6 Rc7 Rac8 a8Q Bbc2 Qa5 d3+ Kf1 d2 Nh4 Bf2 Ke2 Be3 Ba8 Bb1 Ra7 Qb7 Rg2 Rc3 Rf2 Qf8 Rh2 Nf7 Rg2 Bbc2 Nb1 Nd6 Rf2 Nb5 Ra6+ Ke7 Rh6 Qf7 f6+ Ke6 f5+ Ke5 Rg2 Kf4 Rh2 Qf8 f7 Kg3 f6 Bg6 Rf2 Bce4 Rh2 Qg8 f8Q Qf7 Qc5 Qc6 Rh1 Qb7 Rd1 Kh2 Rh7 Rb3 Qcc2 Bc6 Q2a3 Bef5 Qd8 Qb8 Rh6 Bh1 Bg2 Qb7 Qab2 Be6 Ra7 Bd5 Qa2 Rd3 Qda5 Ra3 Bh3 Bhe4 Bg2 Rb3 Bh1 Rd3 Re1 d1Q+ Kf1+ Qd2 Rd1 Rb3 Qc6 Qc2 Rd2+ Bg2+ Ke2 B2e4 Qcb6 Qcc6 Qc5 Rc3
2qbK1B1/1RB2n1N/Q1brPp2/2kq4/b7/1Q3BRN/r1P1q1q1/nQ2r2N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 Kf5 h5 b4 a4 e4 f3 g4 f2 g6 d3 g5 d2 b6 a3 b5 h4 b7 h3 e5+ Kc5 e6 d5 g7 d4 b6 a2 g6 d3 Be2 f1Q+ Bf3 h2 Nc3 Rh7 Nh3 Na6 b8Q Be7 b7 Qg2 Qe2 d1Q Rb1 a1R Bf4 d2 Bc7 Bd7 Rg1 h1B Rb2 Qe1 Nd1 Ba4 Ndf2 d1Q Ke5 Nh6 g8B Qf8 g7 Qc8 Rb1 Bd8 Rb2 Qh2+ Rg3 Qg2 Rb6 Qed2 Qd3 Rc1 Qb3 Qdd7 Qa7 Q1d3 b8Q Re1+ Kf4 Q7d5 Rb7+ Kc6 Qb1 Nc5 Qa5 Nb3 Qaa7 Na1 Qa6+ Kc5 Qb3 Qh2 Qb1 Bg2 Nh1 Qe2 Qb3 Ng4 Qb1 Ne5 Kf5 Rh6 Ra7 Rh4 Q8b3 Rd4 Rb7 Rd3 Bh7 Ra7 g8N Qg1 Nf6 Qgf2 Bg8 Rdd1 Nh7 f6 Nf8 Nf7+ Kg6 Rd3 Q3a2 Ra3 Qab3 Ra2 Bg4 Bf3 Nh7 Qg2 Bh5 Qdd2 Kg7 Bfc6 Kf8 Qdd5 Rb8 Rb7 Bf3 Rb4 Rb7 Rd4 Ra7 Qf5 Rb7 Rd7 Ke8 Qg5 Rb6 Qd5 Rb7 Rd6+
QR2n1Q1/2Q2bb1/B2P1q2/n2N2B1/k1pq1R1r/q5BR/2Pb2rN/1b2Kn2 w - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 d5 a4 dxe4 f3 exf3 axb5 Qd5 Bc4 Qd6 Bf1 Qd8 h4 Kd7 b4 a5 d4 f5 h6 g5 h5 c5 b6 Kc6 b7 e5 h7 a4 h6 f4 Rh2 g4 Kf2 e4 Bd2 g3+ Ke1 g2 Bc4 f2+ Ke2 f1N Be6 Kb5 d5 a3 d6 e3 Bd5 f3+ Ke1 a2 Qe2+ Ka4 b5 Nc6 b8Q Bg7 b6 Qf6 b7 Be6 Bc4 Bf7 Ba6 Na5 Qc7 Ra7 Qd3 e2 b8R Ra8 Bg5 Ra7 Nh3 g1Q Qe4+ Qgd4 Nd2 Rb7 Rb1 a1Q Nf4 Qa3 Rh3 Ba2 Rc1 Bb1 Nd5 Rb3 Qg6 Re3 Rd1 Re4 Qgf7 Rg4 Qf8 Rg2 Qff7 Ne7 Qg8 Nf5 Rc1 Bf8 Rd1 Ng7 Rc1 Ne8 Rd1 Ne3 Nf1 Bg7 Nh2 Nf1 Rd3 c4 Rh4 Ne3 Rf4 f2+ Kd2 f1B Ke1 Rg4 Rc3 Bg2 Rcb3 Nf1 Rh3 Qde5 Qf8 Rg8 h8Q Qd4 h7 Rh4 Qff7 Be4 Qe6 Bg6 Qec8 Rf8 Qg8 Bf7 h8B Qdb2 Kf2 e1B+ Ke2 Bc3 Q8b7 Bd2 Qa8 Bh6 Bg7 Qfd4 Be5 Bg7 Rff3 Qba1 Bg3 Qf6 Rf4 Qad4 Qh7 Rh8 Qg8 Rg4 Kd1 Rhh4 Ke2 Bc1 Ke1 Be3 Bf2 Rg2 Bg3 Bd2+
1BB1qQ1B/K1R5/2Rp1Nbr/4n3/2Pn4/r3PNQ1/n2Q1r1b/qk1b2nR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 b4 Ke4 h4 f5 c3 g5 b6 a5 Kb5 a4 e3 g4 h6 g3 h7 a3 b7 g2 h5 f3 h6 a2 c4 f2 Nh3 g1N Be2 f1R Rh2 d3 Bd2 f4 Bg4 f3 Bc3 f2 Rh1 d2 Nf4 Nc6 b8Q Qe8 Kb6 Nf6 b5 Bd6 Nd5 Bh2 Qg3 Kd3 Qe1 d1B Nd2 d6 Nf3 Kc2 Bh3 Ne4 Qd2+ Kb3 Bd7 Bb7 Bc8 Ra4 Bg7 Nd4 Nf6 Nc3 Rb1+ Ka3 Rb4 a1Q Rb2 Rf8 h8Q Be4 h7 Bg6 Kb7 Na2 b6 Rg8 Rb5 Ra6 Rc5 Kb3 Kb8 Ra3 b7 Rf8 Rc6 Rg8 Qa5 Kc2 Ka7 Kb1 b8B Rf8 Bh6 Rg8 Qg7 Rf8 h8R Rg8 Rh7 Rf8 Qe7 Rh8 Rf7 Rh7 Bg7 Rh6 Ra6 Re1 Qc3 Re2 Bh8 Rc2 Qf8 f1N Rc7 Rg2 Ne5 Rf2 Qa5 Nd2 Rac6 Rd3 Qc3 N2f3 Qd2 Rb3 Nf7 Rc3 Ng5 Ne5 Nf3 Ra3+
1nq1N1R1/2bN1Kn1/1Pk1bB2/R7/b1q1NPQb/r1r2qB1/2r2pR1/1B1Q4 w - - 0 1 illegal: No possible last move, all moves rejected
1k1Kn2b/1B1q3Q/Bpq2r1q/1RQP1n1b/N1R3P1/3r3b/3nQB2/R1N1n3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 h5 f4 c4 a4 h3 d4 h4 g3 b6 f6 c3 f7 c2 a5 b3 f5 h2 f6 b2 a6 h3 a7 Nd7+ Ke6 Nh6 Qe2 Nf5 Be3 c1Q Nc3 b1N Bf2 Rh6 Na4 Bg7 f8R Bh8 d6+ Kb7 d5 Qc6 Rg8 Nd2 Rg4 Rg6 Kf7 e5 Rc4 e4 Rb1 e3 Rb5 Qdc7 Ke8 Rh6 f7 Rf6 Qf3 e2 f8Q e1N Ne2 Rf7 Nc1 Rf6 Rg1 h1B Qe2 h2 Qf7 Bg2 Qh7 h1Q g4 Qh6 Rh1 Bh3 Rg1 Nc5+ d7 Ne6 Rh1 Q7d6 Rg1 Neg7+ Kd8 Ne8 Rh1 Rb8 a8B+ Ka7 Bb7 Ra8 Rg1 Kb8 Rg3 Qe6 Ra3 Qf7 Ra1 Qfg7 Nc5 Ra3 Na4 Rd3 Qf3 Re6 Rbb4 Ra3 Rc2 Rb3 Bfa6 Rc3 Rb5 Qe5 Qe2 Rd3 Rc4 Qef4 Rc3 Rf6 Rc4 Nd4 Ke7 Qf5 Qf7 Qfh7 d8Q Qf5 Qd7 Qfe6+ Kd8 Nf5 Qg6 Qf7 Qde7 Be6 Qb4 Qfh7 Qg8 Bf7 Qc5 Bh5 Qg6 Q7g7 Qh7 Qgd7+
B2r1B2/b1rQ1q1b/1pP1P2q/q6k/2b1n2r/3bQR1Q/2R1KBn1/1RN2N2 w - - 0 1 illegal: No possible last move
b3r2q/1qN1rrnB/P2Q3K/1R4Q1/3Bp1PR/b1nQ3r/4n1bR/k3NN2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 b5 a4 c5 f4 e5+ f6 h5 d3 c4 a5 h3 d6 c3 d7 b3 a6 c2 f5 b4 Qf3 h2 Ra5 h4 Bd2 c1R Nh3 e4 Ng1 b2 Rb5 Ne7 f7 b3 f6 h3 Bb4 Rc6 Nd2 b1N Bc5+ Kc3 d4+ Kb2 d5 Rc7 d6 Raa7 Bd4+ Nc3 Qd3 Nf5 Ngf3 Ka1 Ne1 b2 Be2 b1Q Nf1 Be7 f8N Ng7 Ne6 Re8 Kh6 Nc6 f7 Bb7 f8R Ba8 Rf2 Qb8 d8Q Rcb7 d7 Ba3 Bf6 Nd4 Nc7 Qb3 Bd1 Nde2 Bd4 Qg8 Bb3 Qh8+ Kg5 Qc8 Bg8 Qb8 Bh7 Qc8 Rg1 h1B Kh6 h2 Qg5 Bg2 d8Q Qb8 Qd6 h1R+ Kg6 Rh3 Rh1 Rg3 Rh5 Rh3 Kh6 Qc8 Rh4 Qb8 Ne6 Rf7 Nc7 Qb7 Qgc5 Bf3 Rh2 Bg2 Qg5 Qd5 Ne6 Rae7 Nc7 Qb7
n3q1rQ/q1kb1bB1/p4NqK/3QbrB1/1P2BR1N/2r5/R4r1P/1Q3Rn1 w - - 0 1 illegal: No possible last move
1R1K1BNR/Q3r2P/4Bp2/1b3b2/2nQq1rk/rR1q1P1n/QB4bq/2N2r2 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 e3 d5 Qf3 d3 Qf5 d4 Qf3 e6 Qd1 Be7 Bh3 d2+ Kf1 d3 Kg2 Rh5 Qe1 Bf6 Qd1 Bd4 exd4 Re5 Kg3 Rc5 Bf1 Rh5 Kg2 Rh8 Kg3 Ke7 Kf4 Kf6 c4 a5 b4 a4 h4 g3 c5 g2 d5 a3 c6 a2 h5 Nd7 b6 Nh6 d6 Ne5 d7 Nhg4 b7 Nc4 b8Q Ra3 b5 Re8 c7 Re7 Ne2 g1R b6 g5+ Ke4 e5 Kd5 e4 Kc6 e3 h6 Ba6 c8Q Bb5+ Kb7 Kg6 Nbc3 f6 Bh3 Kh5 Qa7 Kh4 Rb1 a1R Bb2 Rf1 Qb3 d1B Nc1 e2 Qc5 e1Q Nd5 d2 Qd4 Qe4 Qa2 Bc2 f3 d1B Rh2 Nf2 Be6+ Nh3 Rh1 g4 Rh2 Qf8 Kc7 g3 b7 g2 b8R g1Q Rh1 Qf7 Kd8 Qh7 Rh2 Be2 Rh1 Rf7 Ne7 Qh2 Ng8 Qg6 h7 Bcd3 Rg1 Re7 Rg5 Rg1 Rc5 Bc2 Rcc8 Bf1 Ne2 Qg7 Bc3 Kh5 Nh6 Qee5 Rb3 Rb1 Bb2 Re1 Nc1 Bg6 Rd3 Rg4 Rb3 Rf7 Ke8 Kh4 Rd8 Bg2 Rdc8 Qf5 Rd8 Rf1 Rdc8 Ba6 d8B Qd3 Be7 Be4 Kd7 Qg6 Rh8 Bb5+ Kd8 Rg7 Bf8 Re7 Ng8 Qf5 Ba1 Qfe5 Bc3 Bf5 Bb2 Qee4
nB1N3q/Nq4RP/pN1P4/3B3b/4r2K/brn2knQ/Q1QBn3/2q3bR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 b4 Kg5 d4 c5 e5 f5 d6 g3+ Kf3 g2 d7 c4 e6 a6 b6 c3 b5 c2 h3 Rh4 e7 Nf6 e8Q Ne4 b7 Ba3 b6 Nc3 Qe3 Qh8 d8N Nd7 d5 Rb8 Ne2 g1B Bd2 c1Q d6 Kh5 Qe6 g5 Qc2 g4+ Kg2 g3 Nd4 Rg4 h4 f3+ Kh3 g2 N4c6 f2 Na7 f4 Qea2 f3 Bc4 f1Q Bd5 Re4 Kg3 f2 Kh3 Bb2 Na3 Qb5 Nc4 f1N Rb1 Ng3 Ra1 Ra8 b8Q Ba3 b7 Qbb2 Qc7 Nb6+ Qd7 Rb8 Qe6 Na8 Nb6 Bd7 Rb1 Be8 Qd7 Rc8 b8B Rcc4 Qc8 Rb4 Qe6 Rb3 Qd7 Kg6 h5+ Kf6 h6 Ke5 h7 Bh5 Be1 Kf4 Bd2+ Kf3 Qe6 Bg4+ Kh4 Bh5+ Bf4 Qf1 Qh3 Qb5 Rd1 Qc1 Rd4 Qc6 Rc4 Qb7 Rc7 Bgc5 Rg7 g1N Qe6 N1e2 Qh3 Bg4 Bg5 Bg1 Bd2 Bh5+
4bQq1/1b2NNP1/n3R3/kpQ1B2n/4r1Rb/2r1N2q/qK1bPBB1/2R3n1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 g4 Kd7 a4 f5 d4 c5 Kd2 Kc7 Kc2 Kb6 g6 h5 d6 c4 g5 f3 d5 h4 g7 f4 g6 b3+ Kc3 h3 d7 f2 d6 h2 Qc2 f3 Nh3 b2 Nf4 Na6 Bd2 Ka5 Nd5 b5 Be3 Bb7 Bg2 f1N Ne7 f2 Na3 Rc8 Rc1 Nf6 g8R b1Q g7 Rh3 Rg1 h1B Qf5 Rh5 Nc2 Nh2 Qc5 f1Q Bf2 Rh4 Ne3 Nh5 Rh8 Rc7 Rh6 Re4 Re6 Qb8 d8B Nf3 d7 Qa2 Nc8 Bd6 Bf6 Bg3 d8N Bh4 Ne7 Rc6 Nf7 Qg8 Be5 Rc7 Nd8 Bc6 Nf7 Be8 Bh3 Rc8 Rg4 Ng1 Bg2 Rc7 Bf3 Qh3 Bg2 Qa3+ Kc2 c3 Kb1 Qb3+ Ka1 Qc4 Kb1 c2+ Kb2 Qd5 Qb6+ Kb4 a5 Rc3 Qc6 Nc7 a6 Ka5 a7 Na6 a8Q Qd2 Rf1 Qd5 Qc5 c1B+ Kb1 Bd2 Kb2 Qc4 Rc1 Bd7 Ng5 Rf4 Bf1 Bb7 Qf8 Re4 Bg2 Be8 Nf7 Qa2+
1r5r/5P2/Q1Nrb3/KPR5/2nQnbR1/1pBrnN1B/1N2q2R/q1k1b2B w - - 0 1 illegal: No proof kernel
B4R2/N1bQqPqb/b1r3pq/4Q2Q/RnP2B2/Nn4B1/5q1K/R1rn1k2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b4 Kf7 h4 Kf6 c4 Ke5 f4+ Ke4 Kf2 a5 Kg2 d5 f6 e5 b6 g3 b7 d3 f7 a4 h5 a3 h6 d2 f5 Ke3 b5 a2 b6 e4 h7 d4 f6 d3 Rh4 Na6 b8R Bd6 f8B Ne7 f7 Nd5 b7 Qb6 Rh5 Nc5 Rh1 Ra6 Na3 Bc7 Rb1 a1Q Rh6 Qe6 Kh1 Kf2 Rb2 e3 Rb4 e2 Rb1 e1Q Nf3 Qg6 Bd6 Qe7 Qa4 d1B Nd4 d2 Nc6 Bc2 Bg2 Ke2 Be4 g2+ Kg1 Rd8 Kh2 Kf1 h8Q Qd4 Ra8 Qf2 Ra1 Rb6 Ra5 Rd7 Na7 g1Q+ Kh3 Q1g5 Bg3 Rdd6+ Qd7 d1N Bh1 Rb1 Bcf4 Rc1 Ra4 Q6f6 Rg6 Bd3 Qh4 Qh6 Qh5 Ra6 Rg5 Bh7 Rg6 Q6d4 Rb6 g6 b8Q Bd8 Rb7 Qdg7 Qe5 Nb4 Rb8 Nb3 Ba8 Bb7 Rc8 Bc7 Rh8 Rc6 Rf8 Qfc5 Kh2 Ba6 Qee6 Qe3 Qe5 Qf2+
2Rb2K1/n3RPBp/Q5N1/r1Rq3B/q1r5/Q2nQPN1/5bb1/q1Nk1n1n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 e5 c4 d3 b4 a4 g4 d2 c5 Kg5 b6 Kf4 b5 d6 g5 a3 b7 h3 c6 a2 f6 e4 c7 h2 f7 e3 b6 e2 g6 e1N Bb2 Qd7 Bg7 Qa4 Be2 Be7 Qc1 Nh6 Qa3 d1Q+ Nd2 Nc6 b8Q Ng4 b7 Bd8 Qa7 Nd3 b8Q Bb7 Ke6 d5 Qc8 d4 Nb3 Ne3 Bh5 Nf1 Rc1 a1B Rc5 Bc3 Qa6 Be1 Nc1 Na7 Nge2+ Ke4 Rg1 h1N Ng3+ Kf4 Qb8 Bg2 Qbb3 Rc8 f3 Ke3 Qbb6 Ra8 c8R Kd2 Qbb3 Bf2 Qbb6 Nh2 Re1 Nf1 Kd6 Qdb3 Re7 Qb1 Ke6 Qa1 Kf6 Kd1 Qe6 Rg8 Qe3 Rf8 Bh8 Rg8 g7 Re8 g8N Rf8 Kg7 Re8 Rd7 Re4 Rdc7 Nb5 Qb2 Nf4 Rb7 d3 Qh6 d2 Rd7 Ra5 Qa6 Na7 Ne7 Rb4 Kf8 Rc4 Qba3 Kc2 Ng6 d1Q Kg8 Qd5 Bg7 Kd1 Re7 Nd3
K2b1b2/4Bp1B/1nr1n3/1rP2R1R/1QN3qn/P1n1Q3/1BNQ1r2/R2b1q1k w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 d5+ Kf3 Kf5 c4 b5 e3 g4+ Kg3 Ke4 h6 d3 e6 b3 a3 b4 h5 d2 e7 d4 e8R+ Ne7 h7 d3 h6 b2 Ne2 b3 Nd4 Nc6 Ne6 Nd5 Rh5 Ra6 Nd4+ Be6 Be2 Qg5 Nc2 Nd4 c5 Nb6 Qe1 d1N Qb4 d2 Bf1 Rg8 h8B Nc3 h7 d1N Bf6 Rg6 Be7 Rf6 h8Q Rf2 Bh3 Bc4 Bf1 Be2 Qh6 Bf3 Bc4 Ne6 Rd8 Be2 Rd5 Bf3 Rf5 Qf4+ Kh4 g3+ Kh3 Be2 Bd3+ Kf3 e4 g2 e5 g1B Qg5 Bh2 Qh6 Nd8 e6 Ne3 Qg5 Bd1 Qh6 Rf1 Nd2+ Kf2 Be4 Kg1 Nc4 b1Q Bb2 Ng2 Bd3 Qd4 Qd2 Bc7 Be4 Rf3+ Kg4 Nh4 Kg5 Qd7 Kf6 Rf2 Bd3 Bf4 Be4 Bg5+ Ke5 Qc8 Bd3 Kh1 Kd6 Qd7+ Ke5 Qa4 Kd6 Qc1 Kc7 Qb1 Bc1 b2 Kb8 Bf6 Re5 Qd7 Bh7 Qd4 Ref5 Qg4 Ne1 Qd3 Nc2 b1R Bb2 Qf1 Rf3 Nc8 Rff5 Rc6 Ka8 Bg5 Bd6 Bf6 e7 Ne6 e8Q Bd8 Qe7 Nf4 Qee3 Ne6 Bc1 Rb2 Be7 Rb1 Qb5 Rb4 Bb2 Rb3 Qa5 Rb5 Qb4 Nb6+
B6R/r1n1P3/1r2n1bQ/1q1qbp1q/Q1B1P2B/1R2r1Nk/K1N1rQ1N/4b3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kd2 Ke7 e4 a5 b4 d5 g4 h5 c4 a4 Kc2 d3+ Kb2 h3 g5 d2 c5 h2 e6 d4 c6 a3+ Ka2 h4 c7 d3 b6 h3 b5 Nh6 b7 Na6 b8Q Qd5+ Qb3 d1R g6 Kf6 b6 d2 b7 Kg5 g7 Kg4 g8N Bb4 e7 Bf5 c8B Ra7 Qc4 Nc7 Bg2 Qb5 Bf1 Re1 Ne2 d1Q Bg5 Qdd5 Ng3 Re3 Bh4 Be1 Qb3 f6 Bc4 Nf7 Qa4 Rh6 Bd7 Nd8 Bc6 Nde6 Qf8 Bh7 b8Q f5 Ba8 Bg6 Qb6 Re2+ Nd2 Re3 Rb1 Re2 Qf2 Re3 Rf1 h1R Nb3 h2 Na1 Kh3 Nc2 Rg1 Rb3 h1Q Nf6 Rg2 Ng4 Qh2 Qf3 Rge2 Qf2 Qh1 Rg1 Qf3 Nh2 Qh5 Ka1 a2 Rh1 Ng7 Kb2 a1B+ Ka2 Nge6 Qh8 Be5 Qf8 Rh8 Qh6 Rb8 Qf8 Qa5 Nf3+ Kg4 Bf6 Qg5 Rh8 Qab5 Qh6 Qh5 Bh4 Kh3 Nh2 Rb6
1qnN1n1K/n1QP1b2/1Q1R3B/1p1N4/1Bq1Nbb1/5R1q/2P2Qq1/2k1r1rB w - - 0 1 illegal: No proof kernel
4BnR1/bb1P1pq1/1b2RQQB/3nb1PN/1r5k/r1NQN2r/2K2q2/R4n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kf6 b4 Kg5 e4 h5 g4 c5 e5 a5 b6 h3 d6 c4 d5 f3 b5 c3+ Kd3+ Kh4 d7 c2 b7 h2 b6 a4 e6 f2 d6 a3 e7 a2 e8N Ra3+ Nc3 Qg5 d8Q Nd7 b8R Ngf6 b7 Nd5 Bd2 c1B Nf6 Qg7 Bh6 Be3 g5 Ba7 Ng4 Bb6 Bh3 f1N Ne2 Rh7 Rg1 h1Q Ne3 Qg2 Nf4 Qf2 Qf6 Be7 Qd2 Nf8 Kc2 Bed8 Rg3 Ba7 Bd7 Bdb6 Be8 Rh8 Rg1 Rh7 Re1 a1B Ra8 Rh8 b8Q Bb7 Qbd8 Bb2 Qg6 Rh7 Qdf6 Rh8 Ncd1 Be5 Nc3 Rh7 Nb1 Bb2 Qgf5 Nd7 Rc8 Nh2 Neg2+ Kg3 Re6 h4 Q5g6 h3 Ne3+ Qg2 Rd8 Be5 Nc3 Rh8 Ra1 Nf1 Ra8 Qf3 Qdd3 h2 Rb8 h1R Rc8 Nf8 Ba4 Nh7 Rg8 Rh4 Be8 Nf8 d7 Rh7 Nfg2 Rb4 Nf4 Qh8 Bg7 Rh3 Bh6 Qg7 Nh5+ Kh4 Qd4+ Qf4 Qdd3 Qf2+
B1k3rb/1RP5/1Pr5/4rN2/n2bn1bB/1Bp2rQ1/2Kq1N2/Q1nRqQN1 w - - 0 1 illegal: No proof kernel
2rrb1b1/n1PP1Q2/RKB1q3/r1b1B2q/2Q2qkn/3Q2pN/N1B5/1Rq3N1 w - - 0 1 illegal: No proof kernel
kn1bB1r1/1rp5/P4nNP/5nN1/3NQQ2/nb1q1q1R/1K1Q2B1/b1B1R1r1 w - - 0 1 illegal: No possible last move, all moves rejected
B2QR2q/1Pq2k2/2Qr4/2qb4/K2B1b2/4NQn1/1PqNpR1n/NrR3nr w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 h5 d4 a5 Kd2 c5 Kc3 e5 Kb3 c4+ Ka4 c3 g4 h3 g5 c2 g6 h2 d6 h4 f5 h3 b6 e3 d5 e2 f6 e1Q g7 e4 d7+ Kf7 d6 e3 Na3 e2 Nb5 Qd2 Nc7 Ra6 Ne6 Bb7 Nf3 Nc6 Ned4 Qc7 d8R Ne5 d7 Bd5 Bg2 Nh6 g8N Nhg4 Nb3 Bd6 Rf1 h1N Rf2 h2 Re8 Ng3 d8Q h1Q Ne7 Nh2 Nf5 Qd3 Bf4 c1Q Ne3 Q1c5 Qc1 Qdc2 Nd2 Nef3 Be5 Ng1 Bd4 Bf4 Rb1 Be6 Ba8 Bd5 b7 Rd6 Ra1 Qa7 Kb5 a4 Rb1 a3 Na1 a2 Kb4 Qh7 Qc6 Qc5+ Ka4 Q1e4 Rc1 Qg7 Qb5 Rh7 Qa6 Qh8 Qc6 Qec2+ Nab3 Kg6 f7 Rh4 f8Q Rh3 Qh6+ Kf7 Qhg5 Rh4 Qg4 Rhh6 Qf3 Rh4 Nec4 a1R+ Na3 Rb1 Nac4 Nhf1 Ne3 Rh1 Ne4 Q2c3 Ned2 Nh2 Na1 Qc2+
N4N2/1P2BqrQ/RbQ5/1bq3R1/3qbpR1/n3k1r1/P2nb1B1/Q1BK1n2 w - - 0 1 illegal: No proof kernel
2Q1R3/1P2qp2/r1q1Nq1B/1bR1n1b1/5P2/B1r2Qn1/Q1R1bK1k/r3Nr1N w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 b4 Kf5 f4 c5 b6 a5 g3 h5 b7 d4 b5 c4 b6 d3 Ra4 c3 Ra1 d2+ Kf1 h3 Na3 c2 Qe2 d1B Qf3 h4 Ra2 a4 Ne2 h2 Kf2 Qe7 d8N h3 d7 Rh6 Ne6 Nc6 d8B Ne5 b8Q Bd7 b7 Bb5 Qa7 Nf6 Qa5 Nh5 g4+ Kf6 e4 Ng3 Bb2 c1R Nc2 a3 Ne1 Rc3 g5+ Kg6 Rg1 h1Q Bc1 h2 Rc2 a2 Ba3 a1Q Qa6 Nf1 Ng3 Bde2 Qa4 Ra6 Qb3 Bg7 Qa2 Bf6 Rg2 Rh8 Rc1 Rg8 Rc2 Kh7 g6+ Kh6 g7 Bg5 Rg1 Qe8 Bf6 Qe7 Rg2 Rga8 g8Q Qb2 Bg7+ Kg6 Nf5 Ng3 Qc8 R8a7 Bh6 Ra8 Qe3 Kh5 Rc1 Kg4 Qf3+ Kh3 Rc2 Rb3 Rc6 Rc3 Rc5 Nc6 e5 Qa1 Nd3 Qhc1 Ne1 h1R Nf8 Rg1 e6 Qc7 e7 Ne5 e8R Qe7 Ne6 Qc2 Ne3 Qg6 Nf1 Qgf6 Bb2 Qb1 Bc1 Qe4 Ba3 Qc6 Qe4 Nf5 Ng3 R8a7 Nh1 Ra8 Rg3+ Kh2 Rd3 Ng3 Qf3 Ra5 Rd2 R8a6 Bc1 Raa3 Rc2 R3a4 Qb3 Ra2 Ba3 Ra1 Qa2 Rf1#
1Rq1r3/nPP5/3k2pb/4R1Q1/3Knrb1/1B2q2B/N2Nb3/nrBnQ1RQ w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 b4 a5 h4 f5 e4 d5 c4 a4 e5 a3 b6 a2 b5 d3 b7 f3 Ke3 g6 c5 d2 h6 f4+ Kd4 f2 c6 f3 h7 Ra5 e6 Ra8 c7 Ra3 b6 Nf6 h5 Kd6 e7 Bh6 e8B Bg4 Ne2 Rb3 Bf7 Re8 h8Q Qc8 Qe1 d1N Bh3 f1Q Nec3 f2 Rg1 Ne4 Nd2 Qe2 Rb1 a1N Na2 Rf3 Rb5 f1R Rc5 Rf4 Qf6+ Be6 Qfh4 Bg4 Qg5 Qf2+ Kd3 d4 Re5 Nc6 b8R Na7 b7 Qg3+ Kc4 d3 Kd4 Qf3 Bb3 Qe3+ Kc4 Bf8 h6 Be2 h7 Bh6 h8Q Bg4 Nb1 d2 Qh7 Ndc3 Qh8 d1B Nd2 Bdf3 Qh7 Nd1 Bg2 Bg7 Qh1 Bh6 Bh3 Rf2 Nf1 Rb2 Nd2 Rb1 Qf1 Qe2+ Kd4 Qe1 Qf2 Be2 Qf1 Qg3 Qe1 Qe3#
rn1R2Q1/5NRB/k2B1K2/qr3B2/1PqbN3/2Qb1Pp1/Q5bn/b2bb1R1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 d5 Kd3 Kd7 b4 Kc7 c4 Kb6 h4 e5 f3 a5 h5 g5 h6 a4 f6 a3 h7 g3 f7 g4 Qe1 a2 Nd2 g2 Qe2 g3 Ne4 Bg7 f8Q Nh6 Bf4 Bh3 Qg8 Ng4 c5+ Kb7 b6 Nh2 c6+ Ka6 b7 Qa5 Re1 a1B c7 Bf6 c8B Bg7 Kd2+ d3 Bf5 d4 Rc1 Bf6 Rc7 Bg7 Qb3 Rd8 h8Q Rd5 Qg8 Rb5 Qe1 Bh8 Qa2 Bf6 Qc1 Bg7 Qc3 Bf6 Ng5 e4 Ne2 g1Q Bd6 Bg2 Nf7 Qf2 Rg1 e3+ Kd1 d2 Kc2 d1B+ Kd3 Ba4 Ke4 d3 Bh7 Be5 Kf5 d2 Re7 d1B Ke6 Nc6 b8R Bac2 Rd8 Nb8 Red7 Bd4 Bf5 Bc5 Kf6 Bd3 Bh7 Qe1 Re7 Qd2 Rb7 Qc1 Re7 Bh1 Bh3 Bg2 B3f5 Qc2 Ng5 Qb3 Rg7 Qc4 Nf7 Bb6 Qe5 Bc5 Nc3 e2 Ne4 e1B Qc3 Bd4+
1B4BQ/1n5Q/rkb1nr2/n4P2/2bNP3/3RpR1N/1b1RbK2/nqNbB3 w - - 0 1 illegal: No possible last move, all moves rejected
r1B1KQ1N/1NR5/Bb5b/rN1Pr1pQ/bR6/6Pn/rQ3b1k/q1Rb2n1 w - - 0 1 illegal: No extended proof kernel
1b2bR1n/2qNBR2/1Kn1bQ2/1PB1NP2/R2Qr3/n3b2B/1p3rnk/1Q1n4 w - - 0 1 illegal: No proof kernel
rNKQb3/1B1N4/Brnq1bQp/2r2bn1/1r1B1bRP/6r1/1PR1N1k1/2Q5 w - - 0 1 legal: proof: e4 b5 f4 g5 a4 gxf4 axb5 c6 bxc6 d5 Qh5 dxe4 Qf3 Bh6 Qd1 Bf8 Ke2 e5 h4 Ke7 c4 Kf6 d4 Kf5 g3 Kg4 c7 f5 d5 a5 c5 h6 d6 a4 c6 a3 d7 e3 Kd3+ f3 Kc4 e4 Kb5 a2 Kb6 f4 Qa4 e2 Qa5 e1R Qa7 f2 Be3 f3 Rh2 Bg7 Qa6 Rc1 Nd2 Nf6 Bd4 e3 Nc4 e2 Na5 e1B Ne2 Rg8 Bg2 Qe7 d8Q Bf5 Kb7 Qd6 c8B f1R c7 f2 Nc6 Rc5 Qc4 Nh7 Qc1 Bf6 Bd5 Na6 Nb8 Bd2 Bc4 Kf3 g4 Re1 g5 f1B g6 Ng5 g7 Nb4 Ba6 Nc6 Rg2 Bf4 Rg4 Bh3 Rb1 Rg1 Ra1 Rh8 g8Q Rg3 Rb1 a1R Qg6 Ra4 Ra1 Bd3 Ra3 Re8 Rc3 Kg2 Rc2 Bb5 Be6 Ra7+ Kc8 Rb4 Bb7 Ra8 Bc4 Ba4 Bb5 Re6 B5a6 Qe5 Kd7 Bb5 c8N Ba4 Nb6 Qd6+ Kc8 Nh7 Rg5 Bf5 Rg4 Ng5 Qgg8 Re4+ Nd7 Rb6 Qg6 Bb5 Bc3 Rb4 Be5 Bc4 Bc3 Bf7 Bd4 Be8
1N1n1r2/bQb1q1N1/2r1RrPQ/n1R2b1p/1B6/1K1R4/P1r1B3/1kr1QNb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 d4 Kd6 Kd2 c5 Kc2 h5 f4 b5 g5 e5 f6 c4 g6 b3+ Kc3 e4 f5 b4+ Kb2 e3 f7 h3 f6 e2 Nd2 e1B Ne2 c3+ Kb1 b2 Kc2 b1R Nf3 h2 Neg1 b3+ Kd3 c2 Kc4 b2 Ne2 Bg3 Nd2 Ra6 Nf4 Nh6 Ne6 Qe7 Kb3 Rc6 Qe1 Nf5 Ng7 Ne3 Be2 Bf5 Nf1 Nc4 Bd2 c1B Bc3 Be3 Bb4+ Rc5 Rg1 h1R Rg2 Bgf2 Rg5 Rc1 Rb1 Bg1 Ra1 Kc7 d6+ Kc6 d5+ Kb5 d7 Rc2 d8R Rc6 d6 Ba7 d7 Rh4 Rd1 Rf4 Re8 Rf2 d8N Rg8 Qc3 b1R+ Qb2 Rf4 Rd3 Rbc1 Qc3 Rf2 Qe1 Rf4 Nge6 Bg7 f8Q Rf3 f7 Be5 Qh6 Bc7 f8Q Rf4 Qf7 Rf8 Ng7 Rf2 Ba5 Kc5 Rdg3 Kd4 Bb4 Rf4 Bf3 Kd3 Rh3 Be6 Rc5 Rf6 Rg3 Bf5 Rh3 Qd7 Re6 Qe7 Rg3 Rb6 Nc6 Ra6 Nd4 Nc6 Rh3 Nd8 Nc6 Rb6 Nb8 Rc6 Ka4 Rg2 Be2+ Kc2 Rd3 Kb1 Kb3 Rf2 Bd1 Rfc2 Be2 Qe8 Qd7 Qf7 Qc8 Qe7 Qb7 Na5+
2RQbbnn/2KNR3/3QprNn/Br4P1/rnn2q2/1B1RP2Q/2r2k1N/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kf2 Kd7 b4 Kd6 d4 c5 h4 a5 e3 f5 b6 c4 b5 f3 Kg3 f4+ Kh2 e6 h5 g3+ Kh3 g2 Kg4 a4 h6 c3 h7 a3 b7 f2 b6 c2 Nf3 g1N Nh2 f3 Kf4 a2 Bd2 c1R Nc3 Bd7 Ne2 Ra4 Ba5 Nc6 b8N Rc2 b7 Ne5 Rc1 Be8 Nd7 a1N b8Q+ Qc7 Ke4 Nh3 Nf4 Nc4 Ng6 Nf4 Rd1 Nh5 Rd3 Nf4 Be2 f1N Bd1 f2 Qd8 Rd2 Bb3 Nc2 Qb8 Nb4 Qd8 Nh6 Qb8 Rg8 h8Q Rc2 Qd8 Rg7 Qh7 Ng8 Qh3 Ng2 Qb8 Nh4 Qd8 Ng3+ Kf4 Qb6 Rf1 Ngf5 Qe7+ Kc7 d6+ Kc6 d5+ Kb5 Rfd1 f1R+ Ke4 Qb8 Qd8 Na3 Ke5 Nfh6 R1d2 Re7 Rf2 Rh7 Rf7 Rf6 Re7 Qc7 Nb8 Qc4 d7 Rg7 Kd6 Qf4+ Ne5 Nc4+ Kc7 Ng6 d6 Nh8 Ng6 Kc5 Qc8 Rd2 d8R Rc2 Qa6 Rgf7 Rc8 Rf5 Rc3 Kd5 Rd3+ Ke4 Qb6 Re5 d7 Rf6 d8Q Rb5+ Qbd6 Qg3 Nf1 Kf3 Nh2+ Kf2 Nd7 Qf4
2q1RbBQ/4r2Q/rr1p1n2/1r2NPKn/k1r5/2B2Q1R/1P2b3/NNRb2b1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 h5 c4 a5 g4 h3 f6 h2 c5 d3 c6 d2 c7 d6 b6 Kd7 f7 Kc6 b7 e4+ Kf4 h4 g5 e3 f3 e2 g6 Kb5 g7 a4 Qe1 d1B Qg3 a3 Ra2 h3 Bd2 Ra7 Ba5 Ka4 Ra1 e1B Ne2 a2 Nd4 Nd7 b8R Bf2 Nc2 Ba6 c8Q Ndf6 Bc3 Bae2 Kg5 Re7 f4 Nh5 Qf3 Ngf6 g8Q Bg1 Qh7 Qd7 Qd8 Qc8 f5 Re5 Nba3 Rb5 Rc1 a1R Nb1 Ra3 Na1 Rab3 Qg7 Rh7 Qe7 Rb6 Qh8 R3b5 Qd7 Be7 f8N Rg7+ Ng6 Bf8 Nd2 Re7 Ne5 Bd4 Rg1 h1R Nb1 h2 Rg3 Rg1 Bg2 h1R Rh3 Re1 Qdb7 Bg1 Bf1 Rc7 Bg2 Rc4 Qbh7 Qe6 Re8 Qc8 Rg3 Rhh4 Rh3 Rcc6 Qf1 Ra6 Bd5 Rhc4 Qf3 Rcb6 Bg8 Bf1 Nf7 Re7 Ne5 Bfe2
2n1q3/n4r2/2Bp3B/1P4b1/n3Rb2/1PBb1QQ1/RQ1Nn1Nn/KNrk1b2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 a5 c4 h5 Kc2 e5 b3 d3+ Kb2 d6 c5 h3 c6 a4 c7 d2 Bc4 h2 Ra2 a3+ Ka1 e4 Bf1 h4 Bh3 e3 Ne2 Nc6 Qc2 d1N Qc4 Rh7 Qd3 Na7 Qd2 Bh6 Rc2 a2 Na3 Nb2 Bg2 h3 Bc6 Ne7 Rf1 h1B Re1 h2 Nb1 Na4 Ba3 Qd7 Bb4 Rf7 Qc1 Bb7 c8N Bg2 Nb6 h1N Nc4 Bf1 Ncd2 Nec8 Qa3 Qe8 Qb2+ Qe5 Bc3 Ng3 Bd7 Be4 Bc6 Bd3 g5+ Ke7 f6+ Ke6 g6 Kf5 g7 Kg4 g8Q+ Bg5 f5 Qe8 Nf4 e2 Ng2 Rb8 Rec1 e1N Qg6 Nf3 Re1 Nh2 Re4+ Kh3 Qg7 Ne2 Qg8 Kg3 Qg6 Rf8 f7 Kf2 f6 Rb7 Qg7 Rh8 f8B Rf7 Qg8 Rhh7 Qg6 Rc7 Bh6 Rhf7 Nf4 Ke1 Ng2+ Kd1 Qg8 Rg7 f7 Bf4 f8Q Rcf7 Qa3 Rg5 Rb2 Rc5 Qg3 Bg5 Bcg7 Rc1 Bc3 Re7 Qff3 Rf7 Rc2 Nc5 Kb2 a1B+ Ka2 Na4 Qb2 Bf4 Qa3 Nab6 Ba5 Bf6 Bc3 Bh4 Ka1 Bd8 Ra2 Na4 Qb2 Bdg5
q1b2b2/2Bb1BQQ/Pn3rrQ/rRr2nNN/1b4Kp/6B1/4P3/1NR3rk w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 d4 b5 g4 c5 a4 h5 g6 f5 g5 b3 a5 b4 g7 c4 g6 h4 Bb2 c3 Ra4 c2 Na3 c1B Qc2 Nd7 Ba1 b2 Qd2 b1B Nh3 b3 Ng5 b2 Bh3 Rh5 Rb4 Nb6 Rb5 Ne7 g8Q Bc2 g7 b1R Rd1 Ba4 Qh7 Rb2 Qc3 Bd2 g8N Qe8 Qc1 Bb4 Nf6 Rc2 a6 Rc5 Nb1 Ra7 Ra5 Bad7 Rb5 Rac7 Bc3 R7c6 Be1 Qd8 Qb2 Qe8 Rc1 Qd8 Kg2 f3+ Kh2 f4 Bg3 f2 Be6 f1R Kh3 Nf5 Bf7 Rg1 Kg4 Bb7 Qd2 Qa8 Qe3 Bbc8 Qg7 Rh6 Nh5 Re6 Qh7 Re5 Qc3 f3 Qh6+ Ke7 Qb2 Rg6 d6+ Kd8 d5 f2 Qd4 f1R Qa1 Re3 Qb2 Ra3 Qbg7 Ra5 Qhh7 Bc6 d7 Ke7 d8B+ Kd7 Nf4 Kd6 Qhh6 B6d7 Bc7+ Ke7 Qgh7 Kf6 d6 Ke5 Nh5+ Kd4 Q6g7+ Ke3 Qgh6 Bc6 d7 Rf3 d8Q B6d7 Kh3 Rf2 Qf6 Rf4 Bh2 Kf2 Qfg7 Nd6+ Be6 Rff6 Be5 Nf5 Bf7 Rh1+ Kg4 Kg2 Bh2 Rg1 Bhg3 Kh1
1n2b1bk/B2N2n1/P2Q2pK/RP2qnr1/Nn2rN2/2b2R2/1BB4Q/n3Rb2 w - - 0 1 illegal: No proof kernel
kn3b2/N1Q3Rq/p1nNbK1Q/1n2B2r/4bP2/1QRNbP2/1Bb4n/3B3r w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 b5 axb5 gxh4 Be2 f5 Bf1 f4 exf4 Bg7 Nd2 Bh6 Nb1 Bf8 Kd2 h5 Kd3 d5 g4 Kd7 b4 Kc7 c4 Kb7 g5 e5 c5 h3 g6 a6 b6 h4 b5 h2 g7 h3 Na3 Rh5 Ne2 Qd7 Nc4 Ne7 g8Q Nec6 Rg1 h1B Qh8 h2 Bb2 Qh7+ Rg6 Bg4 Rc1 Be6 Qb3 Bf3 Rc3 h1N Nc1 Ng3 Bh3 Nf1 Bg4 Nh2 Qf6 Ra7 Nd6+ Ka8 Qg7 Bg2 Bd1 Bh1 Qh6 e4+ Ke2 d3+ Ke3 d2 Nd3 Rg7 Rg5 Rg8 Rg7 Rh8 b7+ Ka7 Bg4 d1B Be2 Bc2 Bd1 Nd7 b8B+ Ka8 Bc7 Ndb8 b6 Bg2 Bd8 Bf3 Bf6 Bh1 Be5 d4+ Kd2 e3+ Ke2 Nd8 c6 Be4 c7 Ndc6 c8Q Rg5 f3 Rh5 Ke1 e2 Kf2 e1B+ Ke2 Ne7 Qc7 Bd2 Kf2 Nec6 Kg3 Rg5+ Kh4 Be3 Ne8 Rg1 Nd6 Re1 Kg5 Rh1 Ne1 d3 Kf6 d2 b7+ Ka7 Be2 d1N Nd3 Bb6 Rc4 Nc3 Bd1 Nb5 Rc3 Be3 Nc1 Ne7 Nd3 Nbc6 b8N+ Ka8 Ba3 Nc8 Bc1 Nb6 Bb2 Nd7+ Kg5 Nb4 Nc6 Nb8 Na7 N4c6 Kf6 Rg8 Rd7 Rg5 Rg7 Rh5
b1qr1r1n/QR4Pp/rBn1R1bR/Q1b2N2/P1kbr1N1/7B/6bB/N3K3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 g4 b5 d4 c5 d6 e5 d5 e4 f6 h3 d7 h2 d6 Ke6 g5 c4 f7 c3 g6 b3 f5+ Ke5 f6 e3 g7 b4 Nd2 Kd5 Ne2 b2 Qa4 b1B Nd4 e2 Qa7 b3 a4 Qc7 d8Q c2 d7 Ne7 Kf2 b2 N2b3 Bb7 Bf4 Qc6 Qda5+ Kc4 d8B c1B Q7b6 Ra6 Qa7 Be4 Rb1 Ng6 Na1 Bc5 f8N Ba8 f7 Qc8 Nd7 Nc6 f8R Bd2 Rg8 Bc3 Re8 Rf8 Nf6 Nh8 Re6 Bg6 Bg2 e1R Ng4 Re3 Nf5 Bf6 Kf1 Rd3 Bdc7 Rdd8 Ke1 Be5 Rd1 b1B Rd7 Bed4 Bb6 Be4 Rb7 Bd5 Rf1 Be4 Rf3 Bd5 Rh3 Be4 Rh6 h1R+ Kd2 Bf3 Bh2 Re1 Bh3 Re2+ Kd1 Re4+ Kd2 Bg2 Kd1 Be3+ Ke1 Bed4+
Nq2r2k/1B1nBP2/P1Q3r1/Rbr4B/1b4Q1/4rrpR/Q2R1qnr/4N1K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 f4 Kf7 Kf2 d5 h4 g5 c4 Kg7 a4 e5 c5 b5 c6 e4 a5 b3 a6 b4 c7 d3 Qe1 d4 Na3 b2 Be2 b1R Rh3 d2 Nb5 d1Q Nf3 e3+ Kg1 g4 Ra5 g3 Ba3 b3 Be7 Bd7 c8B d3 Nc7 d2 Bb7 b2 f6+ Kh7 f5 Nh6 f7 Ng4 f6 Rc1 h6 b1R h5 Rb3 Qf1 Rc5 Ne1 Bb5 Qg2 Nd7 Qc6 Qb8 Bf3 e2 Rh2 Ra7 Na8 Re3 Rg2 Rg8 Rf2 Kh8 h7 Qc2 Rg2 d1R Rf2 Bg7 f8Q Rd2 Qf7 Bf8 Qa2 Rg6 f7 Red3 Rg2 Ne3 Rh2 Ng2 Bg4 Rf3 Rh3 Kg7 h8R Qc4 Rg8+ Kh7 h6 Qe6 Rg7+ Kh8 h7 Rb2 Bh5 Qg4 Bc8 Rc7 Bb7 Rc8 Rh2 Re8 Rh3 Rd6 Rg5 Rg6 Rd5 Rbc2 Qc4 Ra2 Rd2 Rb2 Nc2 e1R+ Qf1 Rf4 Ra3 Rgg5 Na1 Rcc2 Bd8 Bb4 Rd1 Nh4 Ra5 Kg7 Be7 Re3 Qff3 Rcc5 Nc2 Rff5 Ne1 Rh2 Qf4 Qe2 Qg4 Ng2 Rd2 Rff3 Bf6+ Kf8 h8Q+ Rg8 Qh7 Rgg5 Qhe4 Rg6 Be7+ Kg7 Qc2 Kh8 Qa2 Qf2+
q2N2Kb/R1n1P3/2nN1R2/QrQ1rQ1n/1r5k/1r1p3r/B2B1PbN/1n1R4 w - - 0 1 illegal: No proof kernel
1R1BB1qN/1N2P1r1/q2RQqb1/1p1n4/1K1nqP2/Q2r4/1R1B3q/2bk2qN w - - 0 1 illegal: No proof kernel
3NQK1r/kbB1P3/1n2B3/Pp1r4/8/QNBnQ1bb/Rb3R1r/1N2rbq1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Kg4 g5 Kf5 c5 a4 c4 d4 b3 e4 f3 h4 c3 a5 f2 d6 Kc6+ d7 Kb7 h6 b2 d5 c2 h5 f6 Kg6 f5 Kf7 g4 d6 g3 h7 g2 e5 f4 h6 f3 e6 Nf6 Ra2 Ka7 Qe1 Ne4 Bd2 c1B Qe3+ Nc5 Bc4 f1B Rh2 f2 Ne2 g1R Nd4 Rh1 Nb3 Qg5 d8B Bb7 d7 Bd6 e7 Bg3 Bc7 Bh3 d8N f1B Rf2 Nd7 Be6 Nb6 Be1 Nd3 Bc3 Qc5 Kg7 Rh2 Kf7 Rg8 h8Q Rg5 h7 Rd5 Qe8 Rb8 h8Q Rc8 Na3 b1R Kf8 Bb2 Qf6 Re1 Nb1 Qd4 Qfh6 Qg4 Qc5 Qd4 Qa3 Ra8 Rf3 Qg1 Qe3 Rb8 Rf2 Rc5 Qc6 Bg4 Kf7 Ba8 Nb7 Rbh8 Nd8 Rd5 Qe8 Bb7 Kg7 Bgh3 Kf7 Rhh5 Kf8 Rh8+
Nr1R1nqB/p5N1/2knB2b/2n1bb1Q/R4R2/P2Br1bb/3K2PQ/3n1N2 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 d4 Kd7 f4 e5 f5 b5 d6 h5 a3 h3 f6 b4 d5 b3 f7 e3 Bd2 e4 Bb4 b2 Qd2 h4 Ba6 e2 Qf4 h2 Bc3 h3 Kd2 Nh6 Bd3 Nf5 Nf3 Bg7 f8Q e3+ Kc2 e1B Nh4 e2 Nd2 Rh6 Qh8 Re6 Qh5 Bh6 Bh8 Qg8 Ra2 Bf2 Nf1 e1B Kd1 Bd4 c6+ Kd8 c7+ Kd7 Kc2 Re3 Qg3 Be5 Qf4 Ng7 Nf5 Ne6 Ng7 Na6 Qfh4 Nf8 Qg3 Bb7 Kd1 Nc5 c8B+ Kd8 d7 Kc7 d8N Rb8 Qgh4 B1g3 d6+ Kb6 Nde6 Kc6 d7 b1B d8R Ba6 Be2 Bc4 Nc7 Be6 Na8 Bd3 Rd2 Bg4 Be6 Bdf5 Rg1 h1N R2d4 h2 Ra4 Nf2+ Kd2 h1N Bd3 Nd1 Nh2 Nhf2 Rf1 Nh3 Rff4 Nhf2 Nf1 Nfe4+ Kc2 Nd6 Qh2 Bh3 Kc1 Rb4 Kd2 Rb8
1BN2K1b/1rn1rbR1/Nb2nQq1/4QR1P/5B2/1b1n2p1/RrrQ2P1/N5k1 w - - 0 1 illegal: No proof kernel
n1r2N2/N1b2b1Q/K3QRqb/3P1QN1/1R1Bp1b1/Pn1k1B1r/3n1rn1/2R5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 d4 h5 g4 c5 f4 e5 g5 c4 f6 b3 f5 b2 a3 c3 f7 c2 g6 h3 f6 h2 g7 h4 d6 h3 d7 Na6 Ra2 Nc7+ Kb6 Ne7 g8N Bh6 f8R Qe8 d8Q Ned5+ Kc5 b5 f7 b4 Qf6 b3 Nf3 Bg4 Qd2 Nf4 Kb6 Ng2 Ne7 Rc8 Qe6 Na8+ Ka6 Bf4 Rg1 h1B Be2 h2 Ng6 Rh3 Qc3 Bh6 Be3 c1B Qc7 Bf4 Bd1 Kd3 Nc3 b1N Nb5 b2 Na7 Nd2 Ng5 b1N Bf3 Nb3 Rb2 N1d2 d5 e4 Qb7 Bc7 Bd4 Bh5 Rh8 Qg8 Nf8 Qg6 Rh6 Bg4 Bd1 Rf3 Re1 Rf2 Bf3 Na5 Rb4 Nab3 Nd7 Bh5 f8Q Bg4 Qed6 Be6 Qf5 Bf7 Nf8 Ne3 Bh5 Bf3 Qde6 h1R Bg4 Be2 Bf3 Rh3 Rf1 Ng2 Rh1 Qh5 Rf6 Qg6 Re1 Nc4 Rh1 B1f4 Rc1 Ncd2 Ngh7 Bh6 Ng5 Ne1 Bh1 Bg4 Bf3 Bg3 Qc7 Ng2 Qce7 Bc7 Q7d7 Bg8 Qh7 Bf7
1NBKn2k/2n1B1N1/bbN1Pb2/R1r1Q3/Q4n1P/3n3r/3p1q1Q/Rr1bR3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 a5 e4 f5 b4 Kf7 c4 g5 h6 g4 e5 a4 h7 Kg7 e6 g3 c5 a3 b6 f3 h3 g2 b7 f2 c6 a2 b5 f4 b6 f3 c7 Qh4 Ne2 g1N Qa4 Na6 b8N Nb4+ Kd2 d3 Ke3 d2 b7 d1B Ng3 Nf6 Ba6 f1R Nd2 f2 Nb3 Ne8 Ba3 Bc5+ Nd4 Nd3 Bb4 Bb6 Be7 Ne2 Nh5+ Kg6 Ng7 Nef4 Nf5 Rg1 Ng7 Rg5 Re1 Kh6 Kd2 f1N+ Kc3 Qf2 Ndc6 d4+ Kc4 Rg1 Kb5 Ne3 h4 Ned5 Rc1 a1B Rb1 Rf8 h8Q+ Kg6 Rc1 Rf5 Rb1 Bc3 Ra1 Rg3 Qb4 Rh3 Qa4 Bd7 c8R Ndc7+ Kc4 Ra7 Rd8 Bc8 Rd5 Re5 Ra5 Ra8 Qf8 Kh7 Qf5+ Kh8 Qg5 Ncd5 Kb5 Rf5 Qg3 Bb2 Qh2 Ra7 Nd8 Ndc7+ Kc6 Bc3 Nd7 Rb5 b8Q Rb1 Bb7 Nb2 Ba6 d3 Bb7 d2 Ba6 Na8 Qe5 Nbd3 Nb8 Nac7 Bb7 Bcd4 Ba6 Bb7+ Kd7 Bc3 Ndc6 Bcd4 Bb5 Ba6 Kd8 Rb7 Qc5 Bf6 Qe5 Bc5 Bc4 R7b5 Bd5 Bb6 Bc4 Rc5 Bb5 Bb7 Ba6 Ba8 Bc8 Bb7 Qe2 Ba6 Qee4 Bb5 Qe5 Ba6
3RK1n1/q1BnP1Q1/PbQ1p2n/b2rN3/4n1Br/2Rr3N/B3bQb1/k1N5 w - - 0 1 illegal: No proof kernel
6nB/2kp4/Pr2QRBN/RRP3Qb/b1nrbn1N/2qnQr2/8/3KbN2 w - - 0 1 illegal: No possible last move
1Br4k/2Pn1Q2/2KN1nn1/p2R1q2/Qb3Qbr/P1r1b1B1/R2NR3/b1r4B w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 f5 e4 Kf7 d4 a5 h4 g5 d6 Kg7 d5 b5 d7 g3+ Kf3 g2 h5 b4 a3 b3 e5 b2 c6 Bd6 h6+ Kh7 e6 Nf6 e7 Bb4 d6 Qf8 d8Q Nbd7 Ne2 g1B e8Q Be3 Nd2 b1N Bg2 Nc3 Rh2 Ncd5 Nd4 Ne7 Bh1 Ng6 Ra2 Rb8 Re2 g4+ Kg2 g3 Kf3 g2 Nb5 g1B Qc7 Bd4 Qa4 Bge3 Qe5 Kg8 h7+ Kg7 Qe4 Ba1 Bb2 Ra8 Bd4 Qf7 Ba7 Qd5 Bb8 Qd3 Kg2 f3+ Kg3 f2 Kf3 Qc2 Qf4 Qc5 Qb7 Qe5 c7 Qe6 Qd5 f1R+ Rf2 Rc1 Re2 Rc3 Qdc4 Rf8 h8B+ Kh7 Bg7 Rh8 Bh6 Kg8 Bg5 Rh2 Bh4 Kh8 Bg3 Qe5 Qf7 Rh4 Qg4 f4 Qg5 Ndf8 d7 Qf5 d8R Be6 Rd5 N8d7 Ba7 Rc8 Bb8 Qb1 Nd6 Bg4+ Kg2 Ba7 Qe5 Qf5 Qe3 f3+ Kf2 Rc5 Qf4 Bb6 Ke3 f2 Ne8 f1R Nd6 Ne4 Kd3 Rfc1 Ke3 R1c3+ Kd4 Ba7 Re5 R5c4+ Kd5 Bac5 Kc6 Nef6 Rd5 Rc1 Ne8 R4c3 Nd6 Be3+
1R5N/RbpnP1nB/1b6/r2Qbq1N/2rr2Rr/5nKN/3kP3/1n3BBQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Ke7 b4 Ke6 g4 Kd5 d4 Ke4 b6 h5 g5 a5 e6 f5 b7 h3 d5 a4 b5 h2 b6 f4 d6 c3 g6 a3 g7 f3 d7 h4 Bf4 a2 Bc1 c2 Bg5 c1N Qb3 h3 Kg3 f2 Be7 Nf6 g8B Rh4 Bf7 Nd3 Qc3 Ke3 Qc4 Ne8 Qc6 Rd4 Bg6 Ra5 Bh7 Ng7 Qd5 Ne1 Nd2 Nf3 Bc5 Qf6 d8N Qf5 Ne4 Nd7 b8Q Bb7 Nf6 Kd2 Qa8 Be7 Nh5 Bf6 Re1 a1B e7 Bb2 Ra1 Be5+ Nf4 Ba3 Nf7 Bb4 Nh8 Ba3 Qc6 Rc4 Bd4 Bc5 Qd5 Ba6 b7 Ng5 Kh4 Rb5 b8R Bb6 Qg2 Bc8 Qaf3 Bb7 Ra7 Ra5 Nh5 Ne4 Ng3 Nc3 Nh5 Nb1 Qc6 Qf7 Qge4 Qf5 Bg2 f1N Bc5 Ke1 Qd5 Nfd2 Bf1 Kd1 Nf3 Kc1 Rg1 h1R Ng5 h2 Rg4 Rg1 Bh3 Rd1 Bg1 h1R Qg2 Kc2 Qh2 Kc1 Bf1 Nf3+ Kh3 Rdd4 Kg2 Bf6 Kg3 Kd2 Qg2 Rh2 Qh1 Rh4 Nh3 Be5+
k2r4/1pr1bn1B/rR1B1r2/1bNn1Kb1/1P1Qn3/3NRR2/P2B1q1n/4Q1Q1 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 cxd5 f5 exf5 a4 Qb3 axb3 Ke2 Kd7 Kd3 c5 Ke4 Kc7 f4 h5 d4 e5 g4 c4 f6 b2 g5 c3 g6 c2 f5 h3 f7 h4 f6 h2 g7 h3 Bg2 Ne7 g8Q Ra6 Nc3 b1N Nge2 Bd7 Na4 Bb5 Nc5 Nbc6 d6+ Kb8 d7 Qb6 d5 Ka8 d6 Nd8 Nf4 Nd5 Bd2 c1B Nfd3 Be7 f8B Nf7 Kf5 Nbc3 Be4 Rh6 Rd1 h1R Qg1 h2 Rb1 Rh7 Rb3 Rh8 Qe1 Rg1 Ra3 h1R Rb3 R1h7 d8Q+ Ka7 d7 Rg6 Qc7 Ka8 Qg1 Rhg7 Rf1 Rhg8 Rf3 Qa7 Qb6 Rh8 Qe6 Rgh7 Be1 Bg5 Bd2 Rhg7 Na4 Qf2 d8Q+ Ka7 Qdb6+ Ka8 Qd4 Rgh7 Nac5 Rhg8 Bg7 Rd8 Bf8 Rhg7 Kg4 Rh6 Bh7 e4 Kf5 e3 Ra3 e2 Qee4 Ne5 f7 e1N Qh4 Ne4 Qhg3 Bef6 Bd6 Be7 f8R Re6 Rf6 Nf7 Be5 Rc6 Bd6 Rc7 Re6 Rg6 Qh4 Qe2 Re3 Nf3 Qhe1 Nh2 Rf3 Qf2 Rc3 Nef6 Re3 Ne4 Ra3 Ra7 Ra6 Re6 Rc6 Ra6 Rb6 Rf6+
6n1/5NbQ/1rN2r1B/K6b/1PRR1PRb/1p3bqn/B1QrN1rk/2Q4q w - - 0 1 illegal: No proof kernel
1nnQbR2/k3brRN/B1q5/2r2p2/1Pn2nqQ/KP1r1r1Q/3B3N/4R2B w - - 0 1 legal: proof: h4 d5 f4 b5 c4 g5 cxd5 gxh4 f5 b4 a3 e6 axb4 exf5 Qc2 f4 Qb3 Bf5 Qd1 Bc8 g4 Kd7 d4 f5 Kd2 a5 Kc3 c5 Kb3 Kc7 e4 Kb6 e5 h5 d6 f3 d7 h3 g5 a4+ Ka3 h4 b3 h2 e6 h3 d5 f2 g6 c4 g7 c3 d6 c2 e7 Ra7 e8Q Be7 Bd3 f1R Bb5 Rf3 Bg5 c1R Qf7 Rc5 Qe8 Rac7 Bc6 Ka7 Qf1 Ba6 Bb7 Bb5 Ba6 Rh4 Bc1 Rd4 Bd2 Rdd3 Qh5 Qe8 d8Q Qg6 d7 Qg4 Qh4 Rb7 Ka2 a3 Nc3 Bc6 Nd5 Ba4 Kb1 a2+ Kb2 Bc6 Rd1 a1N Nf6 Nc2 Re1 Na3 Nh7 Nc4+ Ka2 Nf6 g8B Ne4 Bf7 Ned6 Bd5 Nc8 Be4 Bd5 Qg2 Bf7 Bd5 Be8 Qgg3 Rf4 Nf3 Rbc7 Rhg1 h1N Qg2 h2 Qgh3 Ng3 Rg2 h1Q Nh2 Rff3 Be4 N4b6 Ka3 Nh5 Rg3 Nf4 Rgg1 Qg6 Rg2 Qc6 Rg7 Qg2 Bd5 Qg4 Be4 Rfe3 Bh1 Rb7 Qc7 Rf3 d8R Bf8 Qd6 Rf7 Qd4 Be7 Qdf6 Bd7 Rf8 Be8 Qd6 Qg5 Qd4 Qg4 Qd8 Nc4+
1r1qRr2/Nbqq3k/2Q1P3/B2PB3/NQnR1bpN/1B5q/QK1b3n/6b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 Kc3 Kf7 b4 Kg6 h4 c5 e4 c4 d6 f3 h5+ Kh7 h6 g5 b6 f2 b7 a4 e5 f4 b5 a3 b6 a2 e6 g3 d5 g2 d7 f3 Bd2 Bd6 Qc1 Bc7 Rh4 Bf4 Kb2 Nf6 Nc3 Ng4 Na4 Nc6 b8Q Nce5 b7 Rf8 Qa7 Nh2 b8Q Bb7 Ba5 Qc7 d8N g4 Nc6 Qd7 Qd6 Rab8 Qb4 Bd2 Be2 f1Q Bd1 f2 Nf3 g1B Bb3 Qh3 Qa6 f1Q Na7 Qf2 Qcc3 Qc5 Rd1 Bf4 Rd4 Qcc7 Rh5 Qdd8 Nh4 Bd2 Rg5 Qdd7 Rg8 a1Q+ Kc2 Qaf1 Kb2 Qf6 Qc6 Qfd8 Qc2+ Rf5 Re8 c3+ Kb1 Nc4 Qa2 Rf8 Kc2 Kh8 h7 Kg7 h8B+ Kh7 Kb1 c2+ Ka1 c1B Be5 Bf4 Kb1 Bcd2 Ka1 Ne3 Kb2 Nc4+
K5k1/3RB1bb/P5Qn/r1q1nnR1/B2b4/1r3Q1R/Pn1q3p/N1b2NBQ w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 cxd5 gxh4 Ke2 Kf7 Ke3 h5 Kd4 b5 Kc5 e5+ d6 h3 d4 h2 f4 e3 g4 e2 d5 e1B f5 h4 f6 b4 g5 h3 Bb5 b3 Bc6 e4 Nf3 b2 Nbd2 b1Q Nf1 e3 Nd4 e2 Nb3 Qf5 Ba4 Nd7+ Kc6 Bf2 Be3 Nh6 g6+ Kg8 g7 e1N a6 Rb8 Rc1 Nd3 Rc5 Nb2 Na1 Rb3 Rb5 Qh5 Ba7 Bd4 Qc1 Nb6 d7 N6c4 d6 Rh7 Rg5 Ne5+ Kd5 c5 Qd1 Qe7 d8R c4 d7 c3 Bb6 c2 Ba7 Nef7 Kc6 c1B Kc7 Bb7 Kb8 Be4+ Bb6 Bb1 Ka8 Qb4 Qf3 Rh8 Qg2 Ne5 f7+ Kh7 Qg1 Qc5 Qg2 Qd1 Qf3 Qd2 Qb7 Be7 f8Q Bf6 Qf7 Re8 Qh5 Kg8 Qhf3 Bh7 Qbc6 Kf7 Qcd5+ Re6 Qc6 Rd6 Qb7 Rd5 g8Q+ Ke7 Qg6 Bg7 Rhg1 h1N R1g3 h2 Rh3 Ng3 Qh1 Qc4 Ba7 Ra5 Qbf3 Ngf5 Bb6 Bc3 Bg1 Qb4 Rb8 Qb5 d8B+ Kf8 Rb7 Qc5 Rd7 Kg8 Be7 Bd4
RN2b1b1/4BNp1/q1qn4/B3q1P1/b3Rn1P/1K1k4/Q3r1QB/q1rN2bR w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Bh3 Rh6 Bf5 Rh8 Bg4 hxg4 d4 Ke7 Kd2 Kd6 Kc2 f5 h4 a5 b4 c5 e4 f3 b6 f4 b7 a4 b5 a3 b6 g3 Qd3 g2 Rh3 f2 Re3 f1B Ne2 g1Q Rh3 a2 Bb2 f3 Qa6 f2 Qb5 c4 Rh1 c3 Qa6 Qf6 Nc1 Bb5 Nd3 f1B Ne5 Ne7 Kb3 c2 Nc3 c1Q Nd1 Nd7 b8N Qge3+ Bc3 Nf5 b7+ Nb6 Qa4 Qf4 Ba5 Be8 Qc4 Be6 Nf7+ Ke7 e5 Nd6 Qe2 Qc6 Qc2 Bb5 Qg2 B6d7 e6 Q4e5 Rc1 a1Q Rc4 Qf1 Ra4 Ra6 Ra2 Bc8 Re2 Rh6 Re4 Rf6 Qa2 Rf2 Rg1 Ndc4 Qe2 Qcd6 Nd8 Bec6 Re3 Qg2 Qa2 Re2 Rh1 Qge4 Nd7 Qf6 b8B Qc5 Bh2 Qfg6 Nb8 Qe5 Re4 Kd6 Nd7 Qh6 e7 Ra7 e8Q Rc7 Qh5 B8b7 Nf6 Be8 Qf3 Bc8 Qg3 Be6 Nd7 Bg8 Qg2 Rc8 Rg4 Qf6 Re4 Qc7 Qb1 Qa7 Qa2 Qa6 Nf7+ Ke7 d6+ Ke6 Bf4 Nd5 Bh2 Nf4 d5+ Kf5 Rd4 Qa8 Nb8 Qh6 d7 Bc5 d6 Qhf6 d8B Qa6 d7 Ba7 Rd5 Bg1 Rd3 Qfd6 Rf3 Ke4 Re3+ Kd4 Re4+ Kd3 Be7 Qc7 d8R+ Nd6 Rd7 Qcb6 Rb7 Rc1 Ra7 Qc6 Ra8 Ba4+
Nn4R1/b2KNPr1/bRQ3bq/1q2q2P/p1b2BQ1/1B1N1B2/2r5/k1nRq3 w - - 0 1 illegal: No possible last move
n2r2N1/B1kPB3/np1n3R/4q2R/R4N1K/1PrQbqq1/2B1n1Qb/Qq6 w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 b6 a6 Bb7 axb7 Qd7 Kf2 Qe7 Ke1 Qd8 Kf2 Kd7 d4 c5 e4 f5 g4 h5 g5 a5 d6 a4 g6 c4 e5 h3 d5 h4 g7 h2 b3 a3 Bd2 c3 Be3 h3 Ne2 a2 Rg1 h1Q Rg4 c2 Rg6 c1B Na3 f3 Kg3 f4+ Kg4 f2 Bc5 h2 Rh6 f3 Kh3 Ne7 g8Q Qc7 Nb1 Nf5 Nbc3 Na6 b8B Be3 Ba7 Rd8 e6+ Kc8 Bg2 f1Q e7 f2 e8R Qhg1 Ba3 h1N Re5 Nhg3 Nf4 Ne2 d7+ Kb7 Qb1 Nd6 Ne4 Qc2 Qe1 Kc7 Kh4 Qb1 Nf6 Bg7 Be4 Qg3+ Kh5 Qfg2 Bc2 f1N Bb4 Q3f3+ Kh4 Bf8 Reh5 Rc8 Qg4 Qgg3+ Kg5 Bg7 Ng8 Be5 d8Q+ Kb7 Qe8 Rc3 Qb5 Kc7 Bc5 Bg1 Qc1 Ne3 Qd3 Bd4 Qcd1 Bh2 Qh1 Ndc4 Be7 Nd6 Nf6 Rd8 Ng8 Nec4 Qc1 Be3 Qa3 Nb5 d6+ Kc6 d7+ Ncd6 Qa5 Nbc7 Qe5 Na8 Qh8 Qgg1 Kh4 Kc7 Qg2 Qbc1 Rb1 a1Q Qe5 Qa5 Ra1 Qb1 Qed4 Qe5 Ra4 Rc6 Qa1 Rc3 Qf2 Qgg7 Qg2 Qgg3+
rr1n3q/QP2bB1Q/2Qn4/B2P2Nb/N1Kb1q2/1r2R1B1/2R1R2p/r2b2k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 Ke2 Kg5 Kd3 a5 g4 h5 b6 c5 e5 f5 b7 a4 d6 h3 b5 Kh4 g5 Kg3 g6 Kf2 e6 c4+ Kc3 f3 d4 h4 e7 f4 e8R a3 g7 a2 b6 h2 d7 h3 d5 Ne7 g8Q Nf5 Bd2 Nd6 Kd4 c3 Bc1 c2 Qg7 Be7 Be2 Nc6+ Kd3 Qc7 b8Q Nd8 b7 Rf8 Bd2 c1B Qa4 Bb2 Qh7 Bd4 Ba5 Kg2 Be1 f2 Qc6 f1R Bg3 f3 Qa7 f2 Nc3 Rb1 Bh5 Rb3 Re1 a1R Bf7 Rg8 Re3 f1B+ Kd2 Bd3 Na4 Be2 Nf3 Bd1 Ng5 Bh5 Rhe1 h1Q R1e2+ Kg1 Rc3 h2 Kd3 Qf3+ Re3 Qf4 Re2 Qb8 Rc2 Ne6 d8B Rh8 Bc7 Nd8 Ba5 Bcg4 Re2 Rg8 Rc2 Bd1 Re2 Nc8 Kc4 Qbe5 Rcc2 Qh8 Re4 Bec5 R8e5 Be7 Ree2 Rf8 R5e3 Re8 Nc3 Nd6+ Kd3 Rg8 Be8 Ne6 Bf7 Rb4 Na4 Rgb8 Ra2 Rbb1 Rad2 Nd8 Rc2 Ne8 Kc4 Rb5 Ne4 Rb3 Ng5 Nd6+
nK1n2bR/PR5Q/3b4/2nP2Q1/k4N1n/1rBq3N/Np1rQrq1/1B1Rr3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 b5 g4 h5 a4 h3 d4 h2 d6 Kc6 d7 c4 a5 h4 a6 h3 g5 c3 g6 c2 a7 b3 f6 b2 f5 b4 f7 b3 f6 Ne7 g7 Na6 g8Q Nc7 Be3 c1N Qgg4 Nd3 Bh6 Kb5 Bc1 Nc6 Qg6 Bd6 Qh7 Rf8 Qe2 Rb8 Kf5 e4 Bd2 e3 Bc3 Na8 Ke6 Rb7 Ra4 Rc7 Rc4 Nc5+ Kd5 Ba6 Rb4+ Ka5 Rb7+ Ka4 Bg2 Bd3 Be4 Rc8 Na3 b1R Nb5 b2 Bf5 Rd1 Bg6 Rd2 Be4 Qe7 d8Q Qd7 Qe7 Bc2 Bf5 Bd1 Bb1 Nd8 Qe5 Rb8 Qg5 Re8 f8R Qf5+ Kc4 Qd3+ Kd5 Re6 f7 Rf6 Rh8 Rf2 f8N Bc2 Qeh5 e2 Ne6 e1N Nf4 Ng2 Qhg4 Nh4 Qe2 Nf7 Kc6 Bb3 Nf3 Bc4 Rd1 h1R Ng1 h2 Ngh3 Be6 d5 Re1 Bf6 h1Q Nc3+ Ka5 Be5 Qg2 Na2 Ka4 Bc3 Ne4 Rc7 Rb3 Rb7 Nc5 Rb5 Nd7 Kb7 Nd8+ Kc8 Bg8 Rb6 Be7 Rb7 Nc5 Kb8 Bd6+
2R1K3/p1r1N1rB/4r3/Q2P2RR/bb5n/qbP1NQq1/rk1BN3/nb4B1 w - - 0 1 illegal: No proof kernel
Rr1N2BR/2Q5/nqpK2Q1/P4bNn/r2Qqr1r/q2rn3/2P2R2/B5kN w - - 0 1 legal: proof: g4 a5 d4 g5 h4 e5 dxe5 f5 b4 axb4 Be3 Be7 Bf4 fxg4 Bc1 g3 Qd4 g4 Qd1 Bg5 hxg5 Kf8 Bf4 Ke7 Bc1 Ke8 Kd2 Kf7 Kd3 Kg6 Kd4 Kf5 Kd5 h5 f4 b5 a4 b3 g6 h4 g7 b2 e6 g2 e7 c6+ Kd6 Ke4 e8N b4 e3 h3 f5 g3 f6 b3 f7 h2 f8R Nf6 g8Q Nh5 Nc7 Na6 Ne8 Qa5 Ne2 g1R Rf5 g2 Qg7 Rf8 Rf2 Rf4 Nc7 Qf5 Na3 b1R Nab5 b2 Ne6 Rb8 Ra2 Ra1 Nbd4 b1Q Bb2 Qc1 Nf3 Qg4 Bd4 Qg6 Qd2 Qa3+ Qb4 Qf5 Nd8 Rd1 Qc5 Rd3 Qh7 Rdb3 Ba1 Rd3+ Ke7 d5 Kd6 d4 Qc7 Qh7 Qb4 Kf5 e4+ Kg4 e5 Kh3 e6 Qe4 e7 Bf5 Nc3 Kg3 e8Q Kh3 Be2 Rf1 Qg6 g1Q Ng5+ Kg3 Rf3+ Kg2 Nd1 Qge3 Nf2 Rfd1 Rf1 h1R Rh3 Rb1 Qc5 R1b4 Qd5 Rh2 Nh1 Qf2 Qe5 Qfe3 Rf2+ Kg1 Rhf3 Rhh4 Rh3 Rd1 Bc4 d3 Qc3 d2 Bg8 Qb6 Rhh2 Rf1 Qd4 d1N a5 Ne3 Rb2 Ra4+ Rb4 Qa2 Rb5 Rd1 Re5 Rhg4 Re8 Rd3 Rh4 Ng3 Rh8 Nh5 Nb7 Qab2 Rc8 Rh4 Nd8 Rb7 Ra8 Rb8 Qcg7 Qc3 Qc7 Qa3#
2n2R1N/3B4/3npb1Q/2BNb1nQ/2BQPqP1/4N1bb/Rn2Kr1k/2b4n w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 f5 d4 cxd4 h3 fxg4 Bd2 g3 Be3 Nf6 Bc1 Ng8 Kd2 g5 Ke1 a5 Bg2 g4 Bf1 g2 Bg5 g3 Bc1 Ra6 Ra3 Rg6 Ra1 Rg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 c4 Kf7 e4 Kf6 f4 d5 b4 h5 b6 d3 f5 Ke5 c5 d2+ Ke2 Kf4 c6 a4 f6 d4 b5 h4 b7 e6 b6 h3 f7 a3 c7 h2 Nc3 a2 Rb1 a1B Nf3 g1B Qc2 g2 Rb5 Kg3 Rc5 d1N Ne5 d3+ Kd2 Bf2 Qa2 g1B Qc2 Ne3 Nd1 Qd6 Qa4 Nd7 b8Q Ne7 b7 Bh6 f8Q N3f5+ Ne3 Nf6 Qd4 Nh7 Rc2 Ng5 Nf7 Qf4 Ra2 Nd6 Ba3 Bb2 Qe8 Rf8 Nh8 Rf5 Kd1 d2 Ke2 d1N Qh5 Ba1 Bc5 Nb2 Qa8 Bd7 b8N Nec8 Na6 Bb5+ Qc4 Bg7 Nb4 Be5 Nbd5 Be1 Qd3 Bgf2 Qa4 Bd2 Qd4 Bc1 Qh6 Ba6 Qb5 Rf6 Bh3 Be1 Rf1 h1N Rf3+ Kh2 Bg2+ Bh4 Bf1 Ne7 c8B Rf8 Bd7 Nec8 Bh3 Bg3 Bf1+ Nh3 Qa4 Bd4 Bb6 Nbc4 Nf6 Qg5 Kd3+ Bab2 Qd5 Bb5 Be2 Bbc3 Bc5 Nb2+ Kc2 Ba6 Qe5 Qf5 Nfd5 Qf6 Qeh5 Qf5 Bd1 Bf1 Be2 Bg7 Beb5 Bce5 Qd4 Bg2 Bc4 Qg5 Rf6 Rf7 Rg6 Rf2+ Kc3 Bgf6 Rg8 Qf4 Rf8 Kg1 Nf5 Ng5 Nfe3 Rf1 Kc2 Bh3 Kc3 Kh2 Kc2 Nd1 Kd3+ Nb2+ Ke2 Rf2+
1B3b2/3K2Q1/2B1nRQ1/2r2rB1/1QqR1r1p/rqnN1N1r/k3r1PP/1R5n w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 f4 gxf4 Qf3 Bb7 Qd3 cxd4 Qd1 d3 Kd2 d4 Ke1 Bd5 exd5 Qd7 Ra5 Qc7 Ra1 Qd8 Kd2 Kd7 b4 Kd6 c4 f5 b6 a5 b5 Kc5 b7 Kb4 c5 e5 b6 h5 d6 e4 d7 e3+ Ke1 f3 c6 a4 c7 e2 Kf2 e1R Kg3 d2 Kf4 d3 c8R f2 Rc2 Kb3 Raa2 a3 Nh3 Qc7+ Kg5 f4 Kf5 f3 d8B Na6 b8Q Ne7+ Kf6 Nd5+ Kf5 Nc5 b7 Ra5 Nf4 Re2 Bg5 Ne6 Qa7 Qc4 b8Q+ Rb5 Ra1 a2 Qg7 Nc3+ Kf6 Rh7 Qb6 Rh8 Qe1 d1Q Rd2 Qc2 Rd1 d2 Nd3 Qb2 Qc6 Rc5 Kf7 Qa3 Ke8 Qab4 Bb2 Qbb5 Kd7 Rh6 Rc1 d1N Rc2 Qb8 Bbc1 Qb6 Bcf4 Rh8 Nd2+ Ka3 Ne5 Qbb3 Rb1 a1R Nd3 Rh6 Rcc1 Ka2 Qe4 h4 Bd6 Rf6 Qeg6 Rff5 Bdf4 Re3 Be2 f1R Bb8 f2 Bf3 Re2 Bc6 Rf3 Rg1 Rh3 Rh1 Ne4 Rg1 Ng3 Nf3 Nh1 Qb4 Nc3 Rd1 Rfe1 Rdc1 f1R Rd1 Rff2 Rf1 Rf5 Ng1 R2f4 Nf3 Rc5 Nde5 Rf2 Rd4 Rf5 Nd3 Re4 Rfe1 Ref4 Ree4 Re2 Rd6 Nd8 Rf6 Ne6 Rd4 Qa3 Rc1 Qab3 Rc2+ Kb1 Rd2 Ra3 Rb2+ Ka1 Rb1+ Ka2
N5NR/2bRb1r1/2np1Q1K/1QRBB1qP/1b1b1r1k/3P1Qqb/1B5b/5q2 w - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 hxg4 a5 Qg5 a6 Nc6 b6 Nd8 b5 Nb7 axb7 Qd8 Kf2 Ke7 b8B Kf6 e4 Kg5 d3 f5 e5 c5 b7 a5 b6 g3+ Kf3 a4 h3 c4 e6 c3 e7 c2 e8R g2 Re3 a3 Re2 d6 Bd2 c1B Re7 a2 Nc3 Ba3 Ne4+ Kh4 Ne2 g1B Nd4 g5 Rc1 a1B Bc3 Ra7 Bg2 Bh2 Nf6 Bb4 Rd7 Ne7 Bb2 Nc6 Nb5 Be7 Nc7 Rf8 Na8 Rf7 Be5 Bd4 Rc5 Rf8 Ng8 g4+ Ke2 g3 Bd5 g2 Kf3 g1B Qf1 Ra2 Ba7 Rg2 b8Q Rg7 b7 Bgf2 Qc7 Bfe1 b8Q Ba5 Qbb6 Beb4 Qbb8 Bb6 Qcb7 Bc7 Qa1 Rf6 Qc3 Rf8 Qb5 Rf6 Q8b7 Rf8 Ke2 f3+ Kd2 f4 Bb6 Kg3 h4 f2 Ke2 Kh3 Kf3 f1Q+ Ke4 f3 Ba7 Bf6 Kf5 f2 Bb6 Qe1 Qb2 Rgf7 Kg6 f1Q Kh6 Rg7 Qf2 Be7 Qf6 Qg3 Ba5 Ba3 Bc3 Bb4 Bb2 Rff7 Qf3 Rf5 Q7a6 Rf4 Qa1 Nb8 h5 Kh4 Rg1 Qgf2 Rg6 Qg3 Rf6 Nc6 Rf7 Rg5 Rh7 Rg7 Rh8 Qf8 Rd8 Bh3 Rd7 Qf5 Qc1 Re4 Qcf4+ Qfg4 Qf8 Rf4 Qf6+ Qg5+
1N1R2B1/n1k2r1n/b1b5/3Qp3/2Q1PRbN/1bn1bQBr/bb1NPK2/5B2 w - - 0 1 illegal: No possible last move, all moves rejected
1B2n2q/1B1k1pqr/Pr2RP1b/7b/1B2Qq1q/Q2q1N1b/1NQ1NR2/1K4b1 w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 h4 gxh4 e4 Bf5 e5 Bc8 d6 Bh6 d5 Kf8 e6 Kg7 Bc4 Kf6 Bf1 Nd7 exd7 Bf8 Kd2 e5 Kc2 c5 a4 h5 f4 b5 g4 c4 a5 e4 f5 e3 a6 e2 Ra3 e1B Re3 b3+ Kb2 b4 Re5 h3 Nc3 h2 Kb1 h4 Nf3 h3 Bg2 b2 Qc2 Bf2 Na4 c3 Bd2 Bh6 Rf1 Bg1 Rf2 Qf8 d8N h1Q d7 h2 d6 Rb8 Ne6 Qg7 Ned4 Rh7 Ne2 Rb7 Re7 Rb6 d8B Bd7 Qe4 Bc8 d7 c2+ Ka2 c1Q Bc7 Qf1 d8Q b1B+ Ka1 b3 Bb4 Bc2+ Qd1 b2+ Ka2 Bd3 Bb8 Bd7 Qc2 b1Q+ Ka3 Qbc1+ Ka2 Qf4 Nb2 B3b5 Re8 Qd1 Re5 Qd3 Kb1 Be6 Bc3 Ke7 g5 Ba4 g6 Kd7 Be1 Nf6 Bb4 Ne8 f6 Bh3 Re6 Qh8 g7 Qf8 g8Q Qg7 Qa8 Bc6 Qf8 Bb7 Ne1 Bf3 Qe4 Bh5 Bf3 Qh8 Qc5 Qg2 Qc3 h1Q Qa3 Qgg4 Bg2 Qhg7 Nf3 Qh4 Qe3 B5g4 Rc6 Qhg5 Be1 Qh8 Re6 Qhh2 Nd2 Qgg7 Bb7 Bf1 Nf3 Qh4 Bb4 Bfh3 Qe4 Bh5
bN1k1N1Q/q1qB4/2bQ4/3bB3/B2PR1pR/2QbN1q1/4n1Pb/K1q2n1r w - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 a5 b4 axb4 f5 g4 f6 exf6 Nh3 f5 Ng1 f4 Bb2 Ra6 Ba3 Rg6 Bc1 Rg5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 e4 c5 a4 f5 e5 h5 d6 b3 d3 b4 Kd2 b2 Kc2 b3+ Kc3 h4 g6 h3 e6 h2 a5 c4 a6 f3 e7 f4 g7 f2 a7 f3 a8B Be6 Be2 f1Q Be4 f2 Ra3 Qc7 Ra4 Nf6 g8Q Qe1+ Nd2 f1B Bf5 b1B Kb2 c3+ Ka1 c2 Re4 Nd5 Ngf3 Ne3 Nd4 Qg3 Qg7 Bd5 Ne6 Nc6 Bb2 c1Q Be5 Nd4 Nc4 Kd7 Bf3 Ne2 e8N+ Be7 Nf8+ Kd8 d7 Bd6 Nf6 Bc6 d4 Rh4 Qd3 Ba2+ Qb1 Qa3 Qd3 Qaa7 Qh8 Rh3 Qc3 Rh7 Rg1 h1Q Be6 Qh6 Rh1 Ba8 Rf4 Qg5 Bc6 Qh6 Rh5 Qg5 Re4 Q5f4 Rf5 Rh1 Rh5 Qh6 Ba4 Qg5 Bf4 Qgc5 Rh4 Qa3 Qd3 Qc1+ Qb1 Qc2 Ne8 Qf3 Rh6 Ng3 Nd2 Bb5 Nc4 Bbc6 Rh4 Ne2 Nf6 Nf1 Ne3 Ke7 Qe1 Qf2 Qc3 Be5 Bh6 Bh2 Bf4 Qg3 Be5 Qd2 Rh5 Bb1 Rh6 Bd3 Rh4 Bc4 Bf5 B4d5 d8Q+ Kf7 Kb1 b2 Qd6 Qde1+ Qc1 Qc3 N6d7 Ke8 Nb8 Qc4 Bd7+ Kd8 Qc2 Qc3 Qb3 Qc1+ Ka2 b1B+ Ka1 Bg8 Qd3 Bgd5 Qc3 Bd3+
4R3/rq2rQ1B/N1k2N2/1r1N2BP/qnqqp3/1Q2b1qB/R1Q1P2K/2r4n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d3 Bb7 f5 e5 d4 cxd4 Ra5 Bd5 Ra1 Be6 fxe6 Qf6 Bg5 Qe7 Bc1 Qd8 Kf2 g5 Kg3 d5 h4 a5 c4 f5 b4 f4+ Kg2 g3 e7 Kd7 e8N a4 c5 e4 h5 f3+ Kh3 f2 b6 a3 b5 g4+ Kg2 a2 b7 d3 b6 d2 Rh4 d4 Nc3 d3 Nh3 Na6 b8Q Ra7 b7 Qe7 Qc2 d1R Bd2 Nh6 Qb3 Nb4 Rc1 a1R Nb5 Rh7 Kh1 g2+ Kh2 Kc6 Nf6 R1a5 Qc2 Nf5 Nf4 Bh6 Rh3 Ng3 Qg8 Nh1 b8Q Qb7 N4d5 Re7 Bg5 d2 Nbc7 Rb5 Na6 Re1 Qh7 d1Q Qf7 Qd3 Rg3 Qc4 Ra1 Rd1 Ra2 Rc1 Bh4 Bf4 Bg5 Be3 Rf3 Qd4 Rf5 Qc4 Re5 g3+ Kh3 Rd7 Re8 g1Q Bg2 Qd1 Bf1 g2 Kh2 Re7 Qg3 Bd4 Qgb3 g1Q+ Kh3 Qg4+ Kh2 Qgd7 Bh3 f1Q Bf5 Qf3 Bh7 Ra5 Ng4 Be3 Ngf6 Kb5 c6 Qdd4 c7 Kc6 c8B Rb5 Ng4 Qf1 Ngf6 Qe1 Qcd3 Qec3 Qbc2 Qa3 Qdb3 Qg4 Bcf5 Qa4 Be6 Qf3 Bh3 Qg3#
b7/2q3R1/bpBB1N2/R5rQ/q1P3N1/qq3nK1/1Pbk1NQb/QB1bn3 w - - 0 1 legal: proof: e4 f5 exf5 c5 h4 g5 a4 gxh4 d4 cxd4 a5 b6 a6 Nc6 Bc4 Rb8 Be2 Rb7 axb7 a5 Bf1 Nb8 f4 Kf7 Kf2 Kf6 c4 h5 g4 e5 Nh3 d5 Nd2 d3 Kg2 a4 Be2 d4 Nb3 e4 Kh2 e3 Ng5 a3 Nd2 h3 Re1 h4 Bf3 a2 Qb3 e2 Qa3 Ne7 Bg2 Na6 b8N Ng6 Ba8 Qc7 Rh1 e1Q Qa4 Qee7 Bc6 Rg8 Nf7 Qa3 Nh6 Nc5 Rg1 Ba6 Qa5 Ne5 g5+ Ke7 f6+ Kd6 f5 Nf3+ Kh1 Ke5 g6 Kf4 f7 Ke3 f6 h2 Kg2 Qa4 Ne4+ d2 g7 d3 Nd7 h1B+ Kh3 Ke2 Ng4 d1B Nef2 Bc2 Bf4 d2 Bd6 Nd3 Qh5 d1B Rg3 Be7 f8Q Kd2 f7 Nde1 Qa8 Bf6 f8Q Bd4 Ndf6 Qa3 Nd3 Bg1 Ndf2 Qa4 Qfc8 Qa3 Qcb7 Qb3 Rb1 a1Q Rc1 Qaa4 Ra1 Re8 g8B Re5 Bh7 Rd5 Ne5 Bg2+ Kg4 h3 Kf4 h2 Rg7 h1Q Kg3 Qba3 Neg4 Rg5 Bhe4 Bb3 Bb1 Bbc2 Qhe8 Qh8 Qh5 Q4b3 Qba7 Qe8 Q8b7 Qc5 Ra5 Qca3 Ba4 Qeb5 Qe4 Q5b4 Bc6 Q4a4 Qe2+ Kc1 Qf1 Kd2 Qa8 Bh1 Qg2 Qc5 Be8 Qaa2 Qd8 Bb7 Ra6 Nh2+ Qf3 Qaa5 Qd7 Qa1 Ra3 Ba6 Ra5 Qaa2 Qa4 Qcb4 Qa3 Q4a4 Kh4 Bg2 Qh3 Bgf3 Qg2 Ba8 Bc6 Nhf3+ Kg3 Qc3 Qb3 Q2a3 Qa2 Qcb3 Qa1 Bh2+
1R3nr1/1qR2p2/2R1q3/PB3qr1/N2B4/nq3PN1/nN1K3k/bQr1QB1r w - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b6 d4 Kd7 h4 gxh4 e5 Bb7 d6 Ke6 d5+ Kf5 b3 a5 b4 Bc8 e6 Bd7 exd7 axb4 Rh2 Kg6 Rh1 Kf6 a4 Ke5 g4 h5 a5 c5 g5 h3 g6 c4 g7 h4 Na3 b3 Qg4 c3 Bc4 c2 Be2 b2 Bh6 c1R+ Bd1 b1N Ne2 h2 Qb4 h3 Nb5 Nf6 g8B Nh7 Qb3 Qc8 d8R Na6 d7 Nb4 d6 Na2 Ng3 Na3 Qb1 Bg7 Be3 Nf8 Nc3 b5 Bh7 b4 Na4 b3 Bd3 b2 Kd2 Rh5 Bb5 Rg5 Bd4+ Kf4 Bde2 e5 Bf1 e4 f3 Qb7 Rg1 h1R Rb8 h2 d8Q Bh8 d7 e3+ Kd3 e2 Qe7 e1Q d8N Qe5 Nc6 Qe6 Kd2 Qb3 Qe1 Be5 Qg6 b1Q Nb4 Qf5 Rb1 Bg7 Rb2 Qfe6 Qb1 Bf6 Rc2 Be5 Bc5 Ba1 Bd4 Qf5 Rcc8 Ra6 Rg2 Rg8 Ke2 Rag6 Rc7 Rg1 Ne4 Rg5 Rf2 Qfe6 Rg2 h1Q Nd3+ Kf5 Rf2 Qh3 Ndb2 Kf4 Rh2 Qhf5 Rh1 Qee5 Rh6 Rh1 Rhc6 Qfe6 Kd2 Q5f5 Nf2 Kg3 Ne4+ Kh2 Ng3 Qed5 Rc2 Qd6 R2c6 Qde6
Qq1rqqbR/p5K1/6N1/k1qRQ1QB/6rB/PPR1bBrb/r7/1Nn5 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Na6 Bc1 Nc5 Bh3 Ne4 Bg2 fxg4 Bf1 g3 Nd2 g4 Nb1 Ng5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 h5 Ke3 c5 Ke4 d5+ Kf4 Kd7 Kf5 Kc7+ Kg6 Kb6 e4 g2 f4 g3 a3 d4 f5 d3 e6 c3 e5 c4 b3 h4 e7 c2 e8R h3 e6 d2 e7 c3 f6 h2 f7 Ka5 Qe1 d1Q Nd2 Bh6 f8Q Nf6 Qe3 Bh3 Qf2 Ng4 Kf7 Qe2 g6 Be3 g7 Qb8 g8Q Ne5+ Kg7 Nd3 Ngf3 g1R Nb1 g2 Ne5 Qh5 Rd8 Qe8 Bb2 c1Q Q2f4 c2 Be2 Qf1 Bf3 c1Q Rd5+ Qc5 Ng6 Nc1 Bf6 Rh4 Qh8 Rg4 Bh4 Qf2 Qh5 Re1 Qhg5 g1R Q4f5 R1g3 Qe5 Re2 Ra2 Rd2 Rc2 Re2 Rc3 Ra2 Re1 h1B Qh8 Qec8 e8B B1g2 Bf7 Qe8 Rh1 Qf1 Nf4 Qf2 Bh5 Bf1 Ng6 Bc4 Rd6 Bd5 Qf8 Bg8 Rd5 Qb6 Rh2 Rd8 Rh1 Qb8 Rh2 Qc6 Qfe8 Qcc8 Qc6 Qe6 Qa8 Qe8 Bd1 Rf3 Bg3 Rd4 Bg4 Bf1 Rh8 Bh3 Bh5 Rg4 Bh4 Rfg3 Be2 Qf5 Bf3 Qff8+
QQ2b3/rNrRR3/NP3r2/bq1r1RK1/b1r5/2p1rB2/bNPQ3B/n4k2 w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Nbd7 h5 Ng8 Qf3 Ne5 Qd1 Ng6 hxg6 Bh3 Qh5 Be6 Qd1 Bc8 Ke2 Kd7 d4 Ke6 b4 Kf5 b6 Kg4 b5 Kg3 b7 e5 b8N f5 g7 a5 d5 h5 b6 c5 d6 h4 d7 e3 g6 f3+ Kd3 Kf2 Qd2+ e2 Bg2 c4+ Kc3 f4 Ba3 h3 Bc1 a4 Qd1 e1R Kd2 h2 Nc3 a3 Nc6 e4 Ne7 a2 Rb1 a1R Ncd5 e3+ Kc3 e2 Kd4 c3 Ke4 R1a7 Kf5 Rh7 Ra1 Nh6+ Kg5 Nf5 g8R Qe8 d8Q Bd7 g7 Rc8 Ng6 Nd4 Ra5 Nb3 Nge7 Rc4 Qd3 Na1 Qa8 Ba4 Nb4 Qb5+ Nf5 Rd1 Na6 e1R Ne2 Bb4 Rd8 Rac7 Rg1 h1B g8Q Rhf7 Qd6 Rd5 Rd7 Rh7 Bd2 Ra7 Nc1 Re3 Rd1 Rf7 Rb7 Rfc7 Nd3+ Ke2 Nb2 f2 Bc1 f1R Qgb8 f3 Rd3 f2 Bf3+ Ke1 Rd4 Bg2 Re4 Bh3 Re7 Bg4 Qf4 Bh5 Qd4 Be8 Rd7 Rh1 Qd2+ Kf1 Re7 Rh6 Rd7 Rc8 Re7 Rf6 Rbd7 Qc6 Rc5 Rcc7 Rb5 Ba5 Rc5 Rdd3 Nd6 Qb5 Rf5 Rd5 Nb7 Kg1 Nd1 f1B Ba3 Bh3 Nb2 Kf1 Bd6 Bg4 Bh2 Bh3 Rfe5 Be6 Rf5 Rce4 Rd6 Rde5 Rc6 Ba2 Rd6 Rd5 Rdd7 Rec4
rQ4RB/1Qn1NrB1/7p/3K1Nr1/1R1nBbQ1/n1R1r1n1/r4P1P/k5qr w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 b5 axb5 Bb7 e5 Bf3 gxf3 f6 f4 fxe5 f5 e4 Kd2 Kf7 b4 Kf6 c4 Ke5 b6 g5 f6 d5 b5 a5 f7 h6 b7 g4 b6 e3+ Kd3 a4 c5 e2 c6 e1N+ Kd2 d3 Kc3 a3 c7 a2 c8R g3 Bd2 d4+ Kc4 g2 Bg5 d2 Qg4 d1R Rc6 d3 Rd6 d2 Qh3 Rh7 Rf6 Na6 b8Q+ Nc7 b7 Nf3 Qg4 Nd4 Qf3 Re1 Kc5 d1R Qc3 Re3 Rf3 Nf6 Bh4 Nh5 Ne2 g1R Qb4 Rg5 Nbc3 Ng3 Rb1 a1R Nd5 R1a2 Bg2 e6+ Kc4 Bd6 f8B Rf7 Rg1 Qf6 Qa7 Qg7 b8Q Ke4 Qa6 Bf4 Ne7 e5 Bh1 Qg6 Bg7 Re1 Qab6 Rf1 Kc5 Kd3 Q6b7 Kc2 Kc4 e4 Rg2 Rgf5 Bhf6 Rg5 Bh8 Re1 Bfg7 Nf1 Q4b5 Rb3 Nd5 Rg3 Ne7 e3 Bf8 Rg4 Ng3 e2 Qd7 Qg7 Rc1+ Kb2 Rc2+ Ka1 Rb2 Rba3 Rb4 Rb1 Qe6 e1N Qe2 Nec2 Ngf5 Rd3 Rfg3 Rdb3 Rg1 Qg5 Be4 Na3+ Kc5 Re1 Qd1+ Rb1 Rc3 Re3 Rg3 Rh4 Qf3 Rh5 Rg2 Qg4 Qh3 Qd1 Rg8 Rg5 Bfg7 Ng3 Qh5 Qh1 Qg4 Qg2 Bf8 Rh1 Bfg7 Ndb5 Kc6 Qf1 Kc5 Qg1 Kc6 Nd4+ Kc5 Na6+ Kd5 Nc7+
K6n/1n2q1Q1/Bbr4N/1R1nNR2/3P3B/1P1Q3p/b2qbp1B/1Q1rkNq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 g5 c5 d6 f5+ Ke5 a5 d7 f3 g6 f4 b6 f2 b7 h3 g7 h2 Ra2 f3 Bh6 h4 Nh3 a4 Nf4 a3 Qd2 h3 Ne6 Nc6+ Ke4 Nge7 g8N Ne5 b8Q N5g6 Ng5 Nd5 Nf7 Qe7+ Qe5 Ra6 d8B Rc6 Bf4 Be6 Ngh6 Rg8 Qg7 Nh8 Qd3+ Kb4 e3 c4 Nd2 c3 Ne5 c2 Rg1 h1N Rg5 c1Q Rf5 Bf7 Be2 f1B Bh2 f2 Qb1 Qc3 Ba6 Be2 Nf1 Qd2 Ra1 a2 b3 Bg6 Qd3 Bh7 Rc1 a1Q Rc5 Qb1 Ra5 Qbe1 Qb1 Kc3 Rb5 Qec1 Qf6 Rg1 Qg7 Qd7 Bh4 Bc5 Qa1+ Kc2 Qb1+ Kd1 Qd3 Ke1 Qb1 Qe7 Qd3 Nc7 Qb1 Ne6 Kd5 Ng3 e4 Bb6 Qd3 Nh5 Qb1 Rc4 Qd3 Nc5 Kc6 Nf4 Qb1 Nd7+ Kb7 Rc6 Ka8 Nd5 Ne3 Bg8 Rf6 Qeb4 Qc2 Bh7 Nef7 Nc5 e5 Nb7 e6 Qa1 Qb2 Bb1 e7 Ba2 e8Q Rh1 Qe5 Qe7 Qe4 Qb1 Qf3 Qg6 Rf5 Rf1 Ne5 Qg1 Qe4 Qdb4 Qbb1+ Kd2 Qf3 Rd1 Nf1+ Ke1 Qfd3 Qd2
nqqR4/1N1R1N2/qBk5/Q1r1r3/2P1bnrb/5p1B/3BPQ1p/2QNKb2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 g4 f5 b4 d5 c4 Kd7 g6 h5 g5 a5 g7 a4 g6 f3 b6 d3 b7 a3 b5 f2+ Kd2 h4 b6 a2 Nf3 h3 Nh2 d4 Rg1 f4 Rg4 f3 Rg5 Ra5 Nc3 Na6 b8B Ne7 g8Q Nc7 g7 Na8 b7 Rh5 Rd5+ Kc6 Ng4 h2 Bc7 Re5 Nh6 Ng6 Rd7 Be7 Bb6 Nf4 Nf7 Rac5 Bh3 f1B Ke1 Qc7 b8Q Bb7 Qa7 Qb8 Qd8 Bg5 Rb1 a1Q g8N Qa6 Bd2 Qc8 Qc1 Bh4+ Kd1 Qb8 Nd6 Qc8 Nh6 Qb8 Be3 d2 Nhf7 Qc8 Qg5 Qb8 Qg3 Qc8 Qf2 Qb8 Kc2 d1R Bd2 Re1 Nd1 d3+ Kc3 Qc8 Be3 d2 Ra1 Qb5 Qa5 Qa6 Rb1 Bg2 Rb3 Rg1 Kc2 Qb8 Rd3 Bf1 Rd8 Rg4 Rd5 Bc8 Nb7 Bf5+ Kc3 Be4 R5d7 Bg3 Nb2 d1Q Bd2 Qa4 Nd1 Q4b5 Be3 Qa4 Kd2 Bh4 Ke1 Qb3 Bd2 Qa2 Nbd6 Qac8 Nb7 Qa4 Be3 Qb5 Bd2 Qa6
1r4Nb/B2b1k2/rq3q1p/1n3Q2/4b1NP/qp1R1QBP/nBr2Q2/2R1N1K1 w - - 0 1 illegal: No proof kernel
1BB1qqbN/5n1k/2K1R1Rp/Q2Q4/2Pb2B1/1nP2p1n/r3NrNQ/5b1q w - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 f5 b5 axb5 c4 d3 e6 dxc4 exf5 Rh3 f4 Rh2 Qc7 Rh1 Qd8 Kd2 a5 Kd3 d5 Kd4 f5 g4 Kf7 e4 Kg7 b4 h3 g5 h2 e5 h6 c3 f3 e6 f2 g6 f4 b6 a4 b7 f3 e7 a3 Kc5 a2 b5 d4 b6 d3 Bh3 f1Q Ne2 d2 Bg4 Qe1 Rg1 h1N Na3 Nd7+ Kc6 Nc5 b8Q Nb3 e8B Be6 b7 Nf2 Qe5+ Nf6 b8Q Bg8 Qa5 Nh7 Bed7 Ng5 Qh2 Bc5 Bc8 Nf7 Nc2 Nh3 Ne3 Bd4 Ng2 Qf8 Ba3 Ra7 Bd6 Rh7 Rc1 a1Q Bb8 Kh8 Rc2 Rg7 Ra2 Qc1 Ra4 Qb1 Rb4 Ra8 Rb5 Qc1 Re5 Qb1 Re6 Qa1 Qb1 d1B Qd3 Bc2 Qdf5 Bd3 Qad5 Ra2 Qa5 Nd6 Qfd5 Rb7 g7+ Kh7 Ng3 Bf1 Ne2 Bf7 g8N Ra7 Ng3 Rf2 Ne7 Bg8 Ne2 Nf7 Ng6 Qab1 Nh8 Qg6 Qab5 Ra2 Qa5 Qe4 Rd6 Qee7 Re6 Qee8+ Kc7 Bf6 Ngf4 Bd4 Bh5 Bg7 Rgg6 Bd4 Bg4 Bg2 Kb7 Qh1 Kc7 Bf1 Ng2 Qee7+ Kc6 Qee8+
B1B2b2/Qn5b/3qnP2/RNR1q1pr/1rP4k/5K1q/2QQ1Npb/2Bn3R w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Ke2 Kf7 b4 Kg6 h4 Kh5 f4 e5 c4 a5 c6 g5 f5 d5 b6 a4 b7 a3 b5 g3 f6 g2 b6 a2 c7 d4 Be3 Nd7 b8Q Ra4 b7 Nh6 Qa8 Rb4 b8Q Nf7 Nh3 Nc5 Qb6 Ne6 Qc5 Nd6 Qaa4 Nb7 Bf4 e3 Qe1 e4 Nf2 Qd6 Qc2 Rh6 Na3 d3+ Kd1 d2 Ke2 d1N Qed2 Bd7 c8B Be8 Qcd4 Bg6 Nb5 Bf5 Qa7 Bh7 Rb1 a1B Rc1 Bd4 Ra1 Be5 Ra5 Kg6 h5+ Kf5 Ke1 e2 Be3 Bh2 Bf4 Rg6 h6 Rg8 Be3 Rh8 Bf4 Kg6 Be3 Kh5 Bf4 Bf5 h7 Kh4 Be3 Rg8 h8R+ Bh7 Bf4 Rg6 Rg8 Rh6 Rg7 Rh5 Rc7 Qd3 Rc5 Qh3 Qd5 Bg8 Kd2 e3+ Kd3 e1Q Ke4 e2 Bc1 Qec3 Qdd2 e1Q+ Be2 Qg1 Bf3 Qe5+ Kd3 Qd6+ Ke2 Bh7 Bc6 Nbd8 Ba8 Nb7 Ne4 Qgd4 Nf2 Bg3 Kf3 Qb2 Rg1 Qbe5 Rh1 Bh2+
1R5n/K7/q4PkP/1rQ5/2Bbrnp1/q3q1nb/Q1NrBNp1/Q1R2NB1 w - - 0 1 illegal: No possible last move, all moves rejected
2R4R/qr2b2Q/nr2np2/4Bb2/p2Qq1Q1/2R1PKn1/bN2rPBB/4k1N1 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 h4 gxh4 g4 Ke7 c4 Ke6 c6 Ke5 e3 Ke4 Ke2 d5 b6 h5 c7 a5 g5 a4 g6 d3+ Ke1 f6 b7 h3 g7 h2 c5 d4 c6 d2+ Ke2 h4 Ba3 h3 Qb3 d1B+ Kd2 d3 Bc1 Ne7 g8R Ra7 Qc4+ Qd4 Ra3 Nd5 Nf3 Bb3 Bb2 Bf5 c8Q Nf4 c7 Ba2 Qf7 Ne6 Bg2 Be7 Qh7 Na6 b8B Rb7 Rc3 Qa7 Na3 Rb6 Kd1 d2 Ke2 d1R Qd8 Ra1 Rhc1 h1Q c8Q h2 Nc4 Rb1 Ba1 R1b2+ Qd2 Rc2 Nb2 Rb7 Rf8 Rg8 Re8 Rg7 Rh8 Rb6 Bf1 Qg2 Ng1 h1N Bh2 Qg6 Kd1 Ng3 Bg2+ Ke5 Qd3 Re2 Qcg8 Qg4 Rc8 Qe4 R1c3 Ba3 Qdd8 Rgb7 Qg4 Be7 Qc7+ Kd5 Qcf4 Nac7 Rb3 Kc5 Rc3+ Kb4 Qe5 Na6 Qd4+ Bc4 Rd3 Nb8 Qd7 Bd5 Nc4 Rc2 Be5 Na6 Nb2 Ba2 Ke1 Rc3 Qd4+ Kb3 Rb8 Kc2 Rbc8 Kc1 Bf3 Rc2 Rdc3 Nh5 Kf1 Ng3+ Kg2 Qd3 Be2 Kd2 Kf3 Ke1 Bf1 Re2 Bg2 Qe4+
NbN1qQbQ/K4BR1/B2nPPr1/1pp3Qn/r7/3qrk2/8/1N1R1bBq w - - 0 1 illegal: No proof kernel
1N3Bb1/4bNq1/3p2RQ/kr3Q2/1R2Q1R1/PK1Br2q/pN2P1n1/1nb1q2r w - - 0 1 illegal: No proof kernel
Nrr2q1Q/7R/BPqnq2p/3B1N1Q/b3P1b1/1r3k2/Qp3bRR/2B1Kn2 w - - 0 1 illegal: No proof kernel
q2nr2q/7N/kpB2RQ1/1b3K1Q/PPb5/1Br3Q1/1R1p1NNr/1n2bqR1 w - - 0 1 legal: proof: g4 c5 e4 a5 d4 cxd4 b3 f5 exf5 h5 gxh5 a4 Bb2 a3 Bc4 axb2 Bb5 Rh6 Bf1 Rh8 Ke2 e5 Kf3 g5 Kg4 d5 f4 Kd7 h4 Kc6 c4 Kb6 a4 d3 b4 e4 c5+ Ka7 h6 d4 h7 b6 h5 e3 c6 e2 h6 e1Q c7 d2 Ra2 d3 Qb3 d1B+ Nf3 d2 Nc3 b1Q Bg2 Bc5 Rb2 Bf8 Ne4 Bd7 c8B Bd6 Qd3 Be8 Be6 Ne7 f6 Qc2 f5 Nd5 f7 Nc6 f8Q Qc3 f6 Bb3 f7 Qf1 Qg8 Bg3 f8N Be1 Kf5 g4 Nf2 g3 Nh4 Qg7 Be4 g2 Qf3 Nc3 Qh3 Bd1 Bb3 Be2 Qe6 Bc4 Qd6 Rg8 h8Q Qd4 h7 Rg3 Qg7+ Ka6 h8R g1R Rh6 Nb1 Ng2 Rc3 Qgg3 Qh8 Nh7 Qb8 Qh5 Qb7 Ne3 Rg2 Rg1 Rh2 Ng2 Bd7+ Re6 Re8 Qgg6 Qc8 Qdg3 Nd8 Bf3 Bdb5 Bc6 Qb7 Rf6 Qa8
b1bQ2N1/kB2Q1B1/1p2Pq1b/1qn2q1R/N1rB4/3NR1r1/2P3p1/1r1RKn2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 h4 g5 a4 d5 e4 Kd7 h6 Kc7 h7 Kb6 h5 f5 a5+ Ka7 e6 f4 e7 b3 e8N f3 e5 b6 a6 b2 e6 g4 h6 f2+ Kd2 g3 Be2 f1Q Ra5 d3 Nf6 d4 Nh3 g2 Ra3 Nd7 Nf2 Ne7 Bf3 Rg8 h8B Rg3 h7 Nd5 Bg7 Ne3 h8R Nc5 Ng8 Qf6 Nc3 b1Q Na4 Qb5 Bb2 Rb8 R1h5 Rb7 R8h6 Rc7 Bb7 Qf5 Qf3 Qa1 Qd1 Nf1+ Ke1 Rc6 Qc1 Rc7 Rh1 Rc6 R6h5 d2+ Kd1 Rc7 Nd3 Rc6 Ke2 d1B+ Ke1 Bf3 Bc3 Qab2 Qg5 Rc7 Qe7 Be4 Ne5 d3 Bd4 d2+ Kd1 Qf6 Re3 Qf5 Nd3 Bc6 Ke2 d1R Rg1 Rb1 Rgh1 Nh2 Rd1 Nf1 Ke1 Bd5 Bge5 Bh6 Bg7 Qc3+ Ke2 Nd7 Bdf6 Rc4 Bc6 Kb8 a7+ Kc7 Ba8 Qd4 Ke1 Qh4 Bd4 Qhf6 Qe8 Nc5 Qe7+ Bd7 Bc6 Bf3 a8Q Be4 Qa6 Kb8 Qc8+ Ka7 Ba8 Bb7 Qcd8 Bbc8 Be4 Bb7 Bc6 Ba8 Bb7 Bc8
n1nq4/K2b2Rp/P1bN2Rp/2Pk4/2r2q2/1r1n3r/N3NB2/bQQB1Q1R w - - 0 1 legal: proof: e4 c5 h4 a5 b4 axb4 d4 f5 dxc5 Ra7 exf5 Ra6 h5 Ra8 h6 gxh6 c6 Kf7 Ke2 e5 Ke3 b5 f4 d5 g4 e4 Kd4 e3 a4 b3 c4 b2 g5 e2 g6+ Kf6 c7 e1N g7 b4 a5 b3 Nc3 b1R Na2 b2 Be2 Qd7 Be3 Ne7 Kc5 d4 Kb6 d3 g8R d2 c5 Qa4 Qc2 d1Q a6 Rc1 Qd2 b1B Rg2 Bb7 c8N Bg7 Qc2 Kf7 f6 Ke6 f7 Bc6 f8Q Rg8 f5+ Ke5 f6 Nd7+ Kc7 Qdd4 f7 Rb8 Qd3 Qh4 Nd6 Rb3 Rg3 Nb6 Kb8 Ke6 Ka7 Na8 Qe8 Bd4 f8Q Kd5 Qf4 Rg4 Bf2 Rcc3 Qeg6 Qa5 Qb5 Bf5 Rd1 Rf3 Qc1 Bfd7 Qgb1 Qd8 Rg2 Re4 Rg7 Qf4 Rd3 Rh3 Rdg3 Ba1 R3g6 Rd4 Bd1 Re4 Qf1 Nd3 Ne2 Ra4 Qcb2 Rc4 Q2c1 Nc8+
1n1r1r2/n2p1QK1/n2Q1P1b/pB4R1/2qr2P1/1qB5/6BN/RNNRq1kb w - - 0 1 illegal: No possible last move
5qR1/2pbQ3/nrQP1q1N/1P2N2r/1RK1b2q/bRr5/1BkB2Bp/n6N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kd3 h5 b4 a5 e4 f5 g4 f3 g5 f2 b6 h3 b5 h2 b7 a4 g6 f4 g7 a3 Bb2 f3 Qe1 a2 Ne2 h4 Bg2 f1R Nd2 f2 Rb1 a1Q Ng3 h3 Kc4 Nh6 g8N Qh4 Nf3 Ng4 Nh6 Na6 b8R Bd7 Ne5 Be7 Rg1 h1B Rg8 h2 Qc1 Rd1 Re1 Rc8 Re3 Rb8 Rb3 Rd3 Qc2 f1Q Qe2 Bf8 Rb4 Ke7 d6+ Kf6 d5 Rb6 Qe3 Qf5 Qc5 Qa3 Qc6 Qg6 Rb3 Kg5 Rb4 Kf4 Rb3 Ke3 Rb4 Bf5 d7 Kd2 d8B Bd7 Bg5+ Kc2 Bd2 Qgf6 Rb3 Qae7 Rb4 Qd8 Rb3 Bb4 d6 Ba3 Rb4 Qde7 Nf3 Qh5 e5 Nf2 e6 Rd5 Ng4 Qhh4 Bbc1 Nh3 Ne5 Rh5 Be4+ Rd3 Nh6 Qef8 e7 Nf4 e8Q Ne2 Qe7 Nd4 Bf3 Bg2 Nh1 Nb3+ Be4 Na1 R1b3 Bgh3 Bb2 Bhf5 Neg4 Bg6 Bg2 Be4 Ne5 Rc3+
2q4R/P3rbBQ/3Np2P/r1qb2n1/k3B1K1/bnBn3p/2N1N1Q1/r1Q3R1 w - - 0 1 illegal: No proof kernel
5Kb1/P2R3n/BpNQ2b1/4bpB1/2Qq1Rr1/4q3/P1NnrNr1/QB1n1k2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ Kg3 d4 Kf2 g4 c5 g5 h5 d6 h3 d7 c4 d5 h4 g6 h2 a6 c3 d6 c2 g7 h3 a7 f3 Be2 b6 Kd5 Nf6+ Ke5 Nd5 g8B Ne3 Na3 Rh4 Bh7 Rg4 Ba6 f6+ Ke6 Bg7 Qd3 Nd1 Bg5 c1Q Kf7 Qe3 e5 Qh8 d8Q Be6+ Ke7 Nd7 Nc2 Bg8 e6 Kg2 Qb5 f2 Qc4 f1N Rb1 Rc8 Rb4 Nd2 Ke8 Rc5 e7 Re5 Bd3 f5 Qb8 Bh7+ Kf7 Ree4 e8Q Nf6 Qe5 Bg6+ Ke7 Kf2 d7 Rg2 d8N Reg4 Nc6 Qd8+ Ke6 Qdd4 Ke7 Bh8 Qd6 Bg7 Ne2 Bh8 Re1 h1R Nc1 h2 Kf8 Rhg1 Be4 h1B Re2+ Kf1 Nd3 Rh2 Nf2 Bf3 Bd3 Bd5 Ra4 R1g2 Be4 Qdd3 Qa1 Qed4 Re3 Bg8 Rh3 Qe3 Rh7 Qd4 Rd7 Qe2 Nd3 Qee3 Rb4 Re2 Nf2 Rhg2 Ne1 Nh5 Bb1 Be5 Nc2 Nf6 Qcc5 Qd5 Rf4 Qdd4 Qc4 Nh7+
Q7/p1np2kN/N2Pr3/3R3K/qP1q1RNB/Q4Bqb/2b1B1nr/Rr3n2 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Kf8 Kf3 c5 Kg4 f5+ Kh5 c4 d4 h3 g4 f3 e4 h2 e5 f2 b7 c3 d5 c2 b6 f4 d6 f3 e6 Kg7 g5 Na6 b8Q Qf6 g6 Qd4 e7 Bb7 e8R Ne7 Qd8 Be4 b7 Nd5 b8N Ne3 Rf8 Ng2 Nc3 Nc7 Bg5 c1Q Qa4 Qcd1 Rf4 Bc2 Be2 f1B Nd5 f2 Nf3 h6 Rg1 h1Q+ Bh4 Qh3 Nh2 Qg3 Na6 Re8 Ng4 Re6 Qc8 Rb8 Qb7 Rh8 Qa8 Rh7 Qb3 Rh8 Ra5 Q1a1 Rc5 Qa4 Ndf6 Qdc3 Bg5 Ne3 Rd5 Qd4 Qa3 Bg2 Ra1 Bf1 Ne8+ Kg8 g7 Bg2 Bf6 Kf7 Rff5 Kg8 Kg6 h5 Qd3 h4 Qa3 h3 Kg5 h2 Rf4 h1R Be7 Rd1 Nf6+ Kf7 Bf3 Rh2 Nh7+ Bf5 Be2 Bh3 Kh5 f1N Bh4 Rb1 g8B+ Kg7 Ra5 Rf6 Bd5 Ng2 Bdf3 Bc2 Rd5 Re6
1n3r2/2R1QRQ1/1b1n1b2/k1q1pRp1/B2rPb1N/3Qn1BP/b5BK/2bN4 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h5 g4 hxg4 Qd4 g3 Qg4 fxg4 f4 d5 b4 Kd7 e4 Kc7 c4 a5 f5 g5 h3 e5 c6 Kb6 c7 d4 f6 d3 f7 a4 Bf4 a3 Nf3 a2 Nh4 g2 Kf2 g1B+ Kg2 g3 c5+ Ka7 b6+ Ka6 c6 Nf6 b7 Be7 f8Q Nbd7 b8Q Qe8 Qa7+ Kb5 Qg7 Qf8 Qc5+ Ka4 b5 d2 b6 d1N b7 Bh2 b8Q Ne8 Qba7+ Ba6 c8B Nb8 Qd7 Bc4 Qd3 Ra5 Qcd6 Rd5 c7 Ka5 Nc3 Bd8 Rb1 a1B Bd7 Bb2 c8R Ba2 Rc7 Ba3 Rb6 Bc1 Ba4 Rg8 Rf7 Bf6 Rc6 Qe7 Qd7 Rf8 Rc7 Qa3 Qe7 Nd6 Be2 Qb4 Rf1 Qd4 Rf2 Qb6 Bf1 Qd4 Kf3 g2 Kg4 g1B Bg2 Qa7 Rf1 Bge3 Rf3 Bhg1 Kg3 Bed2 Rf1 Bc5 Rf2 Rd4 Kh2 Qb6 Rf3 Qb4 Rf1 Bb6 Bg3 Qc5 Rf5 Be3 Qe2 Bf4 Qd3 Ne3 Nd1 Qb5 Qc4 Qc6 Qd3 Qc5
4rQK1/5B2/Nn3pBr/2R2P1R/k2bq2P/2rr1N2/r2pn2Q/bBN1Q2b w - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 e5 Bd2 e4 Bg2 e3 Kf1 exd2 Bh3 Nh6 Kg2 Nc6 Kf3 Ng8 Bf1 Nb8 Kg3 Rh6 Kg2 Rh8 Kh3 g5 Kg4 a5 Kf5 f6 Kg6 d5 e4 Kd7 Kf7 d3 c4 a4 b4 a3 f4 d4 b6 Kc6 c5 Kb5 e5 a2 h6 g4 e6 g3 e7 g2 e8B+ Bd7 h7 Ra4 b7 Ra5 f5 Qb6 c6 Ne7 c7 Nec6 c8B Bc5 Nf3 g1R Qe1 d1R Nbd2 Rg6 Nb3 Rh6 Nc1 Ka4 b5 d2 Bd3 Qa7 h3 Qa8 Bb1 d3 b6 Nd4 Kg7 Ra6 Bg6 Bc6 Be6 Ne2 Bef7 Re8 h8Q Bd4 Qf8 Nd7 b8N Ra5 b7 Nb6 Na6 Be4 Nb3 Rc1 b8Q d1R Kg8 Rc3 Qh2 Qb7 Nc1 Qe7 h4 Ba8 Rg1 Qe4 Rg5 Rd2 Qeg3 Rd5 Rh5 Rb2 Qgg1 d2 Qe1 Bb7 Bd3 Rbc2 Rb1 a1B Rb5 Ra2 Bb1 Bg1 Rc5 Rdd3 Qh1 Bd4 Qh2 Qe6 Ng5 Bh1 Nf3 Qe4
N4n2/5Qn1/r2npn1q/3pBQb1/k1P1r1b1/1b4K1/2PR1B2/N1nBRQR1 w - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 e5 b5 axb5 c4 d3 f6 dxc4 fxe5 Qd2 e4 Qd6 Nf6 Qd1 Ng8 f4 a5 Kf2 h5 b4 e3+ Kf3 a4 g4 a3 g5 h3 g6 h2 b6 h4 b7 h3 b5 e2 f5 e1N+ Kf4 a2 g7 Ng2+ Kf3 Ne3 b6 Nf6 g8R Rh4 Ba3 Re4 Bd6 Ra6 Rg2 Bh6 Rd2 Bg5 Be5 d5 Na3 Kd7 Kf2 Kc6 Nb5 e6 Nc7 Qh8 Ne2 Bd7 Nc1 Qh6 Be2 Kc5 Na8 Kb4 Re1 h1B Kg3 h2 Nb3 Bf3 Rc1 Ka4 Na1 Bb5 Rb1 Nbd7 b8Q Bh5 b7 Bg4 Qg8 Nf8 b8B Bd7 Qf7 Be8 Nb3 a1N Ba7 Bb5 Rg1 Bc6 Qf1 Bd7 Na5 Nb3 Re1 Nc1 Nb3 Be8 Na1 Bb5 Qh3 Bc6 Bd1 h1N+ Kh2 Nf2 Kg3 Ne8 f6 Nd6 Qf1 Nef5+ Kg2 Ng7 Kg3 Bh3 Bc5 Ng4 Bf2 Bd7 Qe7 Bc6 f7 Nf6 Qd7 Bg4 Qa7 N8h7 f8Q Be8 Qff7 Nf8 Qb8 Ka3 Qba7 Ba4 Qd4 Bb3 Qdd3 Kb4 Qf3 Ka5 Qf5 Ka4
B1b5/3R4/2PrN1r1/KQ2BQR1/3b3Q/P1pN1p1n/1q2R3/bkrB1nrr w - - 0 1 illegal: No proof kernel
knb2R2/3n1bp1/P4r1N/R2nN2n/5P2/4Q3/pRKr2QQ/qBBBbn2 w - - 0 1 illegal: No proof kernel
3BR2r/r2prp2/3KPR1n/1NR4n/1NbPr3/2B3bB/2b3rk/1QQ1Qq2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 c4 Kg3 e4 h5 d4 a5 c6 f3 c7 f2 c5 a4 c6 a3 b6 a2 b7 h3 Bd2 h2 Nh3 h4 Qe1 Nh6 Na3 Ra6 Rc1 a1R Rc5 Rb6 Bc3 Na6 b8B Bb7 c8R Rb2 c7 Nb4 Nf4 h3 Nd3 Nd5 Nb5 Ra7 Nb4 Nf6 Rg1 Bg7 Kd6 h1R e5 Kh2 g4 Be4 g5 Nh5 g6 Bc2 e6 Re8 Rg4 Qf6 Rf4 Re7 Re8 Bh8 Bg2 f1B c8Q Bc4 g7 Rg1 Qb1 Re1 g8Q Re4 Bc7 Qf5 Qg6 Bf6 Qg4 Bh4 Bd8 Bg3 Qg7 Rba2 Qe5 Rb2 Rg4 Qf1 Rg6 Kg1 Qc7 h2 Bh3 h1R Rf6 Kh2 Qc8 B2b3 Qc6 Rg2 Qc8 Bc2 Qc7 Rf4 Qee1 Re4+ Rf4 Ng8 Qa5 Nhf6 Qa3 Kg1 Bf5 Rh8 Qac1 Nh6 Bg4 Nh5 Bh3 Re5 Rf3 Kh2 Rf6 Re4+
K4QQ1/2P2Nb1/2q1r2b/1Q6/1n1b4/1b1rPp1R/BRpn1R1r/B1k1N1bN w - - 0 1 illegal: No proof kernel
n1rK4/2P2Nrk/3bpnr1/1Np2b2/Q2P1BBn/Bn1N2q1/2R3R1/R3n2Q w - - 0 1 illegal: No possible last move, all moves rejected
2RBBR2/r1p1r1R1/1k1bnqK1/4N3/8/1Nr2p1r/1P1r1Pn1/B1bQ1QnQ w - - 0 1 illegal: Other
2bb1n1n/1P1rR2r/5P1k/Q4Bb1/1QrQ4/R1B1N1Bq/ppRb4/bN2K3 w - - 0 1 illegal: No proof kernel
B4bqR/Bpn1P1Pn/4b2B/2b1r3/4r2Q/np1k1NQ1/1KRn2N1/1Qn4N w - - 0 1 illegal: No proof kernel
k1B1QB1Q/pN2K2N/7P/B1R3bb/2N1n2r/1npb1q2/rQ1P1r1r/2r3R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 g5 e4 f5 b4 c5 e5 Kc7 b6+ Kb7 e6 c4 b5 f3 Ke3 f2 Kd4 g3 Ke5 f4 h5 c3 e7 g4 d6 f3 d7 g2 Ke6 g3 Ra5 Bg7 Qc2 Nf6 Ba3 Na6 Nh3 g1R Qb2 g2 Ng5 Bh6 e8N Kb8 b7 Ne4 Nd6 Nac5+ Kf7 Qb6 d8B Nb3 Bb4 Qa6 Na3 Bg4 Bc4 f1R Be6 Qb6 Nac4 f2 Bf5 Qe3 Be7 Kc7 b6+ Kc6 b8Q Qf3 Re5 Ra1 Ke6 Rgf1 Ba5 g1R Qg8 Rh7 b7 Ra2 b8Q Rg2 Rb5 Rc1 Rg1 f1B Rd5 Bd3 Qbf8 Rh2 Qh8 Qf1 Qf7 Rg8 Bf8 Qf3 Ke7 Rf2 Bc8 Rg6 Rg2 Rf6 Rg1 Rf4 Bb4 Kc7 Nb7 Kb8 Ba5 Ka8 Rb5 Bf5 Rc5 Bg6 Kd8 Rg4 Qe8 Bf7 Kd7 Rgg2 Ke7 Rh2 Nh3 Bf4 Ng5 Rh6 Nh7 Bg5+ Kd7 Rf6 h6 Bh5 Kd8 Rf4+ Kd7 Rfh4 Ke6 Nf6 Ke7 Ne4+
5Br1/pPqPbN2/r1QNn1Br/3R4/4r2k/2nQ3b/rN1p2R1/K1RQb3 w - - 0 1 illegal: No possible last move, all moves rejected
1B1N1RR1/r3Q1Rb/5Kn1/3n1n2/Bn1PBq2/N1b5/2ppPbrN/1Q2r2k w - - 0 1 illegal: No proof kernel
QK1k3n/4b2Q/2r1Qnr1/p2b4/qN1rR1Nb/2R2p1B/2b1P1P1/B1N1R1n1 w - - 0 1 illegal: No proof kernel forced: bxLB
5q2/1nR4b/2r1nP1k/pBBBNnn1/b6N/1Kp2r1Q/Pb1R1Q2/3N1Qr1 w - - 0 1 illegal: No possible last move
2R1K1B1/3N3N/Qp1r1PB1/1B3bQ1/2p1kq1Q/1nr4b/r1P1Nb1R/nn2b3 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 f5 gxf5 e5 dxe5 h6 Bg5 hxg5 Kd2 Kf7 Kd3 c5 Kc4 d5+ Kb5 b6 f4 d4 h4 b3 a4 b2 e4 d3 a5 g6 e6+ Kf6 h5 g4 h6 g3 e5+ Ke7 h7 g5 a6 g2 a7 d2 Nc3 b1N Nh3 g1B Qh5 d1B Bc4 g4 Rh2 g3 Ng5 g2 Ne2 Na6 Kc6 Qd2 Qh6 Bf2 f6+ Kd8 f7 Ke7 f5 g1R Ra3 Qf4 Rc3 Nf6 Bb5 Bg7 f8N Rg3 Nd7 Rd8 h8Q Ne4 Nh7 Ned2 Qg5+ Bf6 Bc4 Nb3 Bd5 Na1 Bb3 Rb8 a8Q Be1 Qb7 Ra8 Rc4 Rc3 Qa7 Nc7 Qa6 Nb5 Ba2 Nd4+ Kc7 Ndb3 Kc6 Rg8 Kc7 Ke8 e7 Kf7 e8B+ Ke7 Kc6 Rg6 e6 Rh6 Bg6 Bf2 Kb5 Kd6 e7 Kd5 e8B B6d4 Qhf6 Ke4 Kc6 Be1 Qh4 Ra7 Qfg5 Ra8 Nc1 Bg4 Ne2 Qd2 Kc7 Qf4+ Kd8 Bh3 Ke7 Rd3 Rc3 Bdf2 Kf7 Rd6 f6+ Bf5 Qhg4 Rh3 Q4h4 Na5 Bc4 N5b3 Kf8 Rhd3 Bb5 Rf3 Bef7 Ra7 Bg8 c4 Ke8 Rg3 Rd3 Re3 Rd5 Rc3 Rc5 Ra8 Rc6 Ra7 Qb7 Ra2 Qa6 Bb7 Rc5 Bd5 Rc8 Be6 B6f7 Bh3 Bg6+ Bef5
rk5K/1N2b1R1/p3n2n/B1BQ2Qb/QN1Pb3/7q/N1R1rPp1/n1bB1r2 w - - 0 1 illegal: No proof kernel
b4K2/2Q2P1b/2r1Pr1p/QnB4k/3QN2N/1r1qR1r1/1np1NnR1/b2B1R2 w - - 0 1 illegal: No proof kernel
1Nn1k1NQ/2npP1B1/3Pr1bb/7q/6Rn/B1QQB3/Krp3r1/2b1RbN1 w - - 0 1 legal: proof: f4 h5 g4 e5 fxe5 b5 gxh5 a6 c4 Nc6 b4 Nb8 Bg2 Nf6 Bc6 bxc4 b5 Ng8 b6 Rh7 Ba4 Rh8 Bb5 axb5 a4 g5 d4 c5 Kd2 f5 Kc2 f4 Kb2 c3+ Ka2 b4 e4 g4 h4 c2 e6 c4 a5 c3 e5 f3 b7 f2 h6 f1B a6 g3 d5 g2 h5 Bg7 e7 Rh7 d6 Bh8 a7 Bf6 Nd2 Na6 b8N Bh8 Rh4 Bg7 Ba3 c1B Rg4 c2 Ne4 Bb7 Qd3 Nc7 Rb1 Rh8 h7 Bgh6 Qc3 Bba6 Ra1 Bad3 Nf6+ Kf7 Rb1 Bg6 Ra1 Qe8 e6+ Kg7 Rb1 Qf7 e8Q Ne7 Qc8 Rg8 Qa6 Kf8 h8B Nc8 Qad3 Rg7 Ng8 Ke8 Ra1 Qf5 Rb1 Re7 Bg7 b3+ Ka1 b2+ Ka2 Qc5 Bd4 Qa5 Be3 Rg7 Ra1 b1R e7 Rb4 Qdd2 Re4 Qdd3 Re6 Rb1 Bb2 Re1 Bc1 Nc6 Rb8 a8Q Rb7 Nb8 Rb2+ Ka1 Bf4 h6 Qh5 h7 Bg5 h8B Bh6 Nh3 g1N Qh1 Rb1+ Ka2 Nf3 Ng1 Nh4 Qa8 Rf7 Bg7 Rf2 Qf3 Rg2 Qff5 Bf7 Qh7 Bg6 Qh8 Rb2+
4k3/2p1r2r/R2P1RrN/r1q1nQnp/N7/3PQbB1/b3B1NQ/RK1n2b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 h5 g4 a5 b4 f5 d3 f3 Kd2 f2 Kc2 a4 d6 a3 b6 f4 b7 f3 b5 a2 e5 h3 e6 h2 b6 Qe7 g5 Nf6 g6 Kd8 g7 Ra5 g8N Ke8 Qd2 Nc6 b8Q Rh7 b7 Ne5 Nc3 Ne4 Nge2 Bg7 Na4 Qg5 e7 Qe3 Nh6 Qc5+ Kb2 Ng5 Nf4 Bh8 Be2 f1N Rg1 h1B Ng2 Ne3 Rf1 f2 Qa7 Bf5 b8Q+ Bc8 Qbb7 Be6 Qf3 Bc4 Qf5 Nd1+ Kc2 Bf6 Qdf4 Bh8 Qh2 Bf6 Re1 f1R Bf4 Rg1 Rf1 Bh8 Bg3 Bg7 Rb1 a1R Rb6 Rb1 Ra6 Rb4 Re1 Bb3+ Kb1 Re4 Nh4 Bf3 Ng2 Nef7 Rf1 Bd4 Qb6 Be6 Rf2 Ne5 Rf1 Kd7 e8R Bf2 Rg8 Be3 Rg6 Ke8 Rf6 Ba2+ Ka1 Nd7 Re1 Ree7 Rf1 Ne5 Qa7 Be6 Kb1 Bb3 Re1 Ba2+ Ka1 Qb5 Nf4 Ne4 Bf2 Rg6 Bg3 Ng5 Ng2 Bg1 Qe3 Nc3 Rb1 Qc6 Kb2 Qc5 Ra1 Bf7 Kc1 Nd1+ Kb1 Ba2+
1RQ4n/1P3r2/2rk2N1/p1b3NB/b1B2RKr/Q1Pnp3/3B1q2/nbRr3Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 Ke7 b4 d5 g4 a5 b6 h5 g5 d3 b7 d2 g6 d4 b5 h3 g7 d3 f6+ Kd6 b6 h4 c3 e4+ Kf4 h2 f3 h3 f7 e3 Ne2 Nh6 g8B Bf5 Ra4 Nc6 b8R Ra6 b7 Qf6 Bh7 Nb4 Bg6 Rh7 Bh5 Be7 f8Q Rc6 Qc8 Rf7 Qe1 d1B Nd2 Nc2 Ne4+ Kd5 Ng5 d2 Kg3 Na1 f4 Bb1 f5 Bc5 Nf4+ Kd6 Bc4 Bb3 Qf1 d1R Ng6 B3c2 Rg1 h1R Bd2 h2 Rb4 Ba4 Qf3 Qe6 f6 Qf5 Qg2 Qf2+ Kh3 Rfc7 f7 Re7 f8Q Nf7 Kg4 Nh8 Qff5 Rec7 Qc2 Rh7 Qb2 Rf7 Re1 Rf1 Qa3 h1N Qf3 Rg1+ Kh3 Rg2 Rf1 Rh2+ Kg4 Ng3 Rg1 Ne2 Qh1 Nf4 Re1 Nd3 Rf1 Qe1 Rf4 Qf2 Rb2 Ne1 Rc2 Nd3 Rc1 Rh4+
1Q4Bk/PQ4n1/pRNBrN1r/K1n2pb1/5bNr/Rbq1n3/R4P2/4Q2n w - - 0 1 illegal: No proof kernel
1r2nQK1/2bqRNq1/2BnNQ1N/B2q2QR/r4p1b/2R2P2/k2q1pPq/8 w - - 0 1 illegal: No possible last move, all moves rejected
1B2QK2/rN1bN2k/Pnr4p/2R5/pq1Nr1r1/2b1Bn1P/Q3R3/1Q2qrR1 w - - 0 1 illegal: No proof kernel
n3NbQ1/NbN1Qb2/PRp1bp2/kB1P2Q1/4rbr1/B2R2n1/q3RK2/5q2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Kd7 e4 b5 d4 g5 a4 g4 e5 g3 a5 b3 a6 b2 h6 c6 h7 Kc7 h5 Kb6 e6 f6 e7 f3 e8N g2 h6 b4 d6 b3 d7 Ne7 d5 Nf5 Na3 b1B Qd2 b2 Ra2 Ng3 Rh3 Bf5 Bb5 b1B Kf2 Rg8 h8R Be6 h7 Rg4 Qg5 Ka5 Ne2 Bb7 Nf4 Bg6 Re2 Bgf7 Bb2 Qc7 d8Q Nd7 Qe7 Nb6 Rg8 Rb8 h8Q Na8 Rg7 Qd6 Qg8 Qe5 Bc1 Qb2 Rgh7 Qa2 R7h4 Bd7 Ne6 Rc8 N6c7 g1B+ Ke1 Bh2 Kf2 Bde6 Bb2 Ra4 Rd4 Rd8 Rd3 Re4 Rh4 Re3 Rb4 Re4 Bc4 Rb8 Nab5 Rc8 Na7 Rg4 Ke3 f2 Rb6 f1Q Ba3 Rb8 Bb5 Rd8 Ng7 Re8 Qg6 Ne4 Qg5 Bd7 Qc5 Re5 Nge8 Bde6 Qe7 Bg3 Rf2 Bf4+ Kf3 Qd1+ Re2 Ng3 Kg2 Re4 Kf2 Qf1#
1q1b1BR1/b2PPk2/2QQ2n1/p4N1K/bRrNb1p1/1n2R1r1/2B4B/2b1N1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 f5 h4 c5 e4 g5 d4 f3 Kg3 f2 d6 c4 h5 c3 d5 c2 d7+ Ke7 h6 Bg7 e5 Qc7 d8Q+ Kf7 b6 Bf6 b7 Ra7 d6 Qe7 d7 Rh7 b5 Bh8 e6+ Kf6 b6 Nc6 b8B Rc7 b7 Rg7 h7 Nd4 Bd3 f1B Nc3 Rc4 Ra3 Nb3 Qc7 Qb4 Nb5 Ne7 Nd4 Ng6 Ngf3 Bg2 Bb2 c1B Ne1 Bc6 Bc2 Ba4 Rg1 Rg8 Qc6 f4+ Kf2 f3 Kg3 f2 e7+ Kf7 Bd6 f1Q b8R Qb7 Bc7 Qa7 Rb4 Bb7 Bf4 Be5 h8N+ Kg7 Qd3 Bc7 Nf7 Qb8 Nh6 Bd8 Nhf5+ Kf7 Rg2 Qg1 Qd1 Na1 Re3 Nb3 Qd3 Rc3 Qda6 Rc4 Qd6 Bd5 Qac6 Be4 Be5 Qf1 Bg7 Qg1 Bf8 Qf1 Kh2 g3+ Kh3 Qg1 Kg4 Rg7 Kh5 Rg8 Rh2 g2 Rh4 Qf1 Rg4 g1B Ndf3 Bf2 Be5 Qg1 Bh2 Rg7 Re2 Ba7 N3d4 Rg8 Re3 Rg7 Rgg3 Rh7+ Kg4 Rh3 Rg2 Rf3 Kh5 Rg3 Qb7 Rh3+ Nh4 Nh8 Qbc6 Rf3 Rg4 Rg3 Nhf5 Bg2 Rge4 Bh1 Re6 g4 Rg6 Be4 Rg8 Ng6
1nq1Q3/2B2bkb/1rr2q2/2Q5/2n1QN1b/N1p2b1P/1pR1PR2/K1RB1qB1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 c5 d4 b5 Kd2 g5 Kc2 f5 Kb2 Kf7 h3 c4 h6 f3 h7 f4 a5 c3+ Ka2 f2 d6 f3 d5 g4 a6 g3 d7 Kg7 d6 Be7 a7 Nh6 Be3 Nf7 Qd5 Bh4 Na3 Ne5 Qc5 Nc4 Bg2 f1Q Rc1 f2 Bc6 g2 Ka1 b3 Nf3 g1Q Nd4 b4 Rh2 Qg4 Ba4 Qf6 d8B Be6 d7 Bf7 Bc7 Rc8 h8R Qge6 d8Q Qa6 Qe8 b2+ Ka2 b1B+ Ka1 Bf5 Bd1 b3 Rf8 Bb1 Rh1 Bh7 Rc2 Qae6 Bh2 Rc6 Bc7 Qc8 Ne6+ Kg6 Nf4+ Kg7 Nd5 Qg2 Rg1 f1B Nf4 Rb6 Rh1 Qf2 Bd4 Bg2 Rf1 Qe1 Bg1 Bf3 Rf2 Qf1 Qe4 Na6 Qe8 Rab8 a8Q Rc6 Qe4 Rbb6 Qe8 Re6 Qe4 Nb8 Rg8+ Kh6 Rg5 Rec6 Rd5 Kg7 Rc1 Nb2 Rd2 Nc4 Rdc2 b2+
2b3Rb/1b2q1qQ/Q1r5/8/4qpq1/p1Q1Pn1N/k1NRrP2/BRBK2Bn w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 b4 h5 g4 f5 b6 c5 b5 a5 g5 a4 b7 h3 b6 h4 g6 c4 g7 c3 Qd3 h2 Ra3 d4 Qd2 Kd5 Nf3 Kc4 Qd1 d3 Rf1 h1B Qc2 h3 Bb2 d2+ Ke2 f4 Qh7 c2 Rd3 c1Q Ng5 h2 Nh3 Ne7 g8R Qc3 Na3+ Kb3 Kd1 Nbc6 b8Q Ne5 b7 Nf5 Qc7 Bg7 b8B Ng3 Bc1 Nf3 Nc2 Qe7 d8Q Ka2 d7 a3 Qb7 Ra6 Be5 Rc6 Qa6 Bg2 Rd4 h1Q Qda5 Qb2 Qc3 Bf6 Rg7 Rd8 Rg8 Bh8 Bf6 Qb7 Rd6 Qg1 Bh4 Nh1 Bg3 Qb4 Bh2 Qbe4 Re1 Bf1 Rd4 Qgg7 Bg1 Bc4 Rd3 Be6 Rd5 Bb7 Rd3 Rdc8 d8B Bd7 Ba5 Rd8 Bb6 Bdc8 Bd4 Rd7 Qb4 Rd5 Ba1 Rb5 Qba5 Rb2 Qc3 Qh4 Ke2 Rb3 Bcb2 Nh2 Rb1 Qhe7 Bc1 Rb2 Rd4 Ng4 Ne1 d1Q+ Kf1 Rd2 Rd5 Qdf3 Nc2 Ne5 Ke1 Re2+ Kd1 Qfg4 Rd2 Nf3
B2Q1n1q/B1BbK3/bQ2N3/NR4np/4Rb2/kp3rq1/r1P1PQ2/2Rb1q2 w - - 0 1 illegal: No proof kernel
q2bb3/3R2r1/nBN5/1N3p1r/Q1QR2PB/4Nnp1/1qR2P1k/2KB1bnb w - - 0 1 illegal: No proof kernel
R4B2/b2N1B1N/4nn2/2r1bp2/bqR1pnkn/2QNP3/2PQ2r1/1q1RB2K w - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 axb5 cxd4 g4 g5 fxg5 hxg4 Kf2 e5 Kg2 Ke7 h4 Ke6 b4 Kf5 e3 d5 h5 a5 g6 a4 h6 e4 g7 d3 b6 d2 b5 d4 b7 d3 h7 g3 b6 a3 Rh6 a2 Be2 Ra5 Bh5 Na6 b8R Qd4 b7 Nc5 Qe1 d1Q Nd2 Nf6 g8Q Qb4 Nc4 d2 Ne5 Bd7 Ra8 Ne6 b8N Bc5 Qd8 Ba7 Nh3 Rc5 Nd3 Ba4 Kh1 Rg8 Ba3 Qdb1 h8B d1N Nd7 Nc3 Ng5 Ne2 Nh7 N2f4 Qc8 Rg4 Bg7 Rg6 Bf8 Rg8 Bg6+ Kg4 Bb2 Rg7 Bc3 Rg8 Qc1 Rg7 Be1 g2+ Kh2 g1N Qd2 Rg8 Kh1 Nf3 Rh5 Nh4 Rf5 Q1b2 Rd1 a1B Rd5 Qa2 Rd4 Qab1 Rc4 Be5 Qc7 N6h5 Qc6 f5 Bf7 Nf6 Qc7 Kf3 Qa5 Rg2 Qc3 Kg4 Qd2 Qb8 Qac3 Q8b4
BNKr4/2Q2q2/2bBRn2/3Npr2/kr2n1qR/1r1QbQ2/1pPP3N/3nB3 w - - 0 1 illegal: No proof kernel
3QN1N1/1b1Bb3/r1N1b2n/1qQ1p1nq/rR3p1b/1R2Pn2/3kB2P/Q4R1K w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 h6 g5 Bb7 b3 Qd7 g6 Qd6 Bb2 Bc8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Kg2 Kd6 d4 f5 b6 a5 g7 c5 b7 e5 b4 g4 b5 a4 b6 c4 Nd2 f3+ Kg3 c3 Kf2 a3 Rb1 a2 Rb3 a1Q Nh3 c2 Kg1 c1B Nf4 g3 Ne6 g2 Nc7 Nd7 b8N Rh4 b7 Qa6 Nc6 Qg5 b8R Qh5 R8b4 Nh6 g8B Qb5 Be6 Nc5 Bd7 Ne6 e3 Ra6 Be2 Bb7 Qe1 Ba3 Qa1 Ng5 Nb8 Ke7 d6+ Kf6 d5 Be7 Ne4+ Kg6 Nf6 Re4 Rd3 f4 Rdb3 Rd4 Nc6 Rc4 Ne6 Kf5 Ng8 Ke4 Nc7 Rd4 Ne8 Bd8 Kf2 g1N Kf1 f2 Kg2 N1f3 Rf1 Rc4 Kh1 Bf6 Bg4 Be7 d7 Rd4 d8Q Rc4 Rd1 f1B d6 Bh3 Bd7 Be6 Qb6 Bf6 Qc5 Bd8 Rb2 Be7 R4b3 Rca4 Rf1 Bf6 Bc8 Be7 d7 Bb4 d8Q Be1 Bd7 Bg3 Bd1 Bh4 Rb4+ Kd3 R2b3+ Kd2 Be2 Bd5 Ra3 Bf7 Rab3 Be6
Q3B1R1/1R1RBK1b/1N6/2bPq1r1/n1n1n2N/1P1Qrp1N/p1q5/1k2bB1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 d4 a5 g5 c5 g6 h5 d6 h3 b6 a4 d7 f3 Ke6 h4 b7 f2 g7 h2 d5 f4 Nf3 h3 Ra3 Qe7+ Kf5 Nf6 Kg6 Ne4 g8Q Qe5 d8N Na6 b8R Rh5 Qe6 Rg5+ Kf7 Bd6 Ra2 a3 Ra1 a2 Rg1 h1Q Qd2 h2 Nc3 Qg2 Na4 h1B Qe8 Bf5 Ne6 Bh7 Nh4 f3 Nb6+ Kb3 Rd8 c4 Qd3+ c3 Rb1 Nac5 Nf4 Ra3 Nh3 Na4 Rd7 Bc5 Qa8 Qgh2 Qd1+ c2 Qd3+ Qc3 Bf4 c1B Bd6 Qe5 Be7 Bd2 e3 Be1 Rg2 Nd2 e4 Nc4 Rg1 Rh5 Rg8 Rg5 Qe3 Kc2 Qd4 Qh2 e5 Qg3 e6 Qe5 Bd8 Qd2 e7 Re3 e8B Qc3 Be7 Qd3 Be2 f1N Qe4 Ng3 Bf1 Kb3 Qd4 Qc2 Qd1 Ne4 Qd3+ Kb4 b3 Ka3 Rc1 Bc3 Re1 Kb2 Re2 Kb1 Rg2 Rh5 R2g6 Be1 Rc6 Qd4 Rcc7 Qe5 Rb7 Rg5
2q1Bk2/bQ1Q2nR/1b1rnq2/3P2Q1/B1r3Nb/1P1pK2p/b6R/R2q1NB1 w - - 0 1 illegal: No proof kernel
2k1b3/QnB1r2q/q4rN1/n1bPpnp1/2rQP3/1Q3r1B/1RBR1N2/1K4R1 w - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 axb5 h6 c4 Ba6 cxd5 Bc8 Qb3 Ba6 Qg3 gxf4 g5 Bb7 g6 Bc8 Qg5 hxg5 d6 Kd7 Kd1 c5 Kc2 f5 h4 a5 b4 e6 e4 f3 d4 f2 b6 c4 g7 f4 h5 f3 b5 c3 h6 a4 h7 a3 b7 a2 b6 Ne7 g8B Ra7 Ne2 Qe8 Bf4 Qh5 Bh3 f1R Rg1 Na6 b8Q f2 b7 Nf5 Bf7 Kd8 d7 Nc5 Bh2 Ra6 Nf4 Rg8 h8Q Rg7 Bg8 Qh7 Qa7 Kc7 d8R Bd7 Rb8 Be8 Ng6+ Kd7 Bc7 Bd6 Ba5 Re7 Bc7 Rc6 Qe5 Ra6 Qd5 e5 Qc4 Rb6 Qd3 Ra6 Bb3 Rc6 Qd1 Rb6 Kc1 c2 d5 Rc6 Kb2 c1R Nc3 Rb6 Rb1 a1N Qd4 Rc6 Ba4 Nab3 Nd1 Na5 Bb3 Rb6 Ra1 Rc3 Ra2 Rf3 Kb1 Re1 Ka1 f1Q Rd2 Qa6 Kb1 Ree3 Nf2 Rc3 Rgd1 Rc6 Rg1 Rc4 Bd1 Ne6 Bc2 Nd8 Rc8 Bc5 b8Q Rce6 Qbb6 Rc6 Rb8 Rf6 Rb7 Kc8 Qbb2 Rf4 Qbc3 Rf3 Rb2 Ndb7 Qcd3 Bd7 Qb3 Be8
b4r2/2Q1N2N/1Q2R2n/3p1B1r/1B1Pb2r/1q1qRN1Q/p1rRPn2/2k2nK1 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 g4 Kd6 g5 Ke5 d3 Kd4 g6 c5 g7 a5 b7 f5 b6 h5 b5 h3 Bg2 a4 Qe1 a3 Qa5 f3 Bh6 c4 Bd2 c3 Bg5 h4 Qa7 a2 Bc1 h2 Bf4 c2 Qa5 c1R Bd6 h3 Qa3 f4 Nd2 Rh4 Ne4 Nc6 b8R Rc2 b7 Nb4 b6 Nh6 g8N Ra5 Ne7 Rah5 Kf1 Ke3 Rd1 f2 Ng5 Qg8 d4+ Qb3 Rd2 Nd3 Bc5 d5 N1f3 Bd7 Nh7 Bc6 Rg1 h1B Re8 h2 b8Q Bb7 Bh3 Ba8 Ne5 Bf3 b7 h1Q Bf5 Be4 Qc7 Qf3 b8Q Qg3 Nf3 Qg6 Bc8 Qf5 Kg2 f1N Bb4 Nf2 Rh1 Qh3+ Kg1 Qf5 Rh3 Qg6+ Nfg5+ f3 Bf5 Qa6 Qbb6 Qb5 Rd8 Q5d3 Rd6 Rc1 Rb2 Rc5 Re6 Rc2 Bc5 Kd2 Bb4+ Kc1 Rg3 Rc5 Rd2+ Qb2 Qaa7 Qbb3 Rh3 Rc6 Qg3 Rc3 Qac7 Rc2 Qh2 Qdc4 Rg3 Qcd3 Qh3 Nd1 Bg6 Nh2 Kh1 f2+ Rf3 f1R+ Kg2 Rf2+ Kg1 Nf1 Re3 Rf8 Bf5 Nf2 Nf3 Qbc3 Nfg5 Qa3 Nf3 Qab3
1N1RqQ1b/Q7/r3r1BB/1pN3N1/P1bKn1qR/Q2p4/3PkB2/nq1q2r1 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 b4 axb4 c3 bxc3 gxh5 Ra4 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 Kd3 Kf6 a4 Kg5 h4+ Kf4 f6 e5 h6 b5 h7 d5 f3 c5 h5 g5 f7 c2 h6 g4 Rh2 c4+ Kc3 e4 Ba3 c1R+ Kd4 e3 Rh4 c3 Bd3 e2 Bg6 e1Q Qb3 c2 Bc5 Qd1 Nc3 Be6 Ra3 Ra6 Ne4 Nf6 Qb4 Qe8 Rd3 Ra1 Qa3 Bg7 f8N c1Q Nd7 Qb1 Ba7 Rg8 Nec5 Bh8 Nh3+ Kg3 Ng5 Kf2 f4 g3 f5 g2 Bb6 Ne4+ f6 g1Q Ba7 Rg7 f7 Qgg4 f8B Ke2 Bb6 Bf7 Ba7 Re6 Bb6 Na6 Nb8 Bg8 Ba7 Rf7+ Bg7 Rff6 Bf8 Bg7 h8Q Nb4 Qh7 Bh8 Qb7 Ra6 h7 Be6 Bh6 Nc2+ Ke5 d4 Bb6 Bg7 h8Q Bf7+ Qe7 Re6+ Kd5 Bf6 Qhf8 Bh8 Qa7 Bg8 Rf3 d3 Rf7 Ra2 Rd7 Na1 Rd8 Rc2 Qfe7 Rc1 Qf8 Rf6+ Kd4 Bc4 Bc7 Rae6 Bg3 Ra6 Bf2 Rfe6+ Qf6 Qdb3 Qfg7 Rg1 Qf6 Q3d1 Qfg7 Re5 Qf8 Ree6+
1kq2BNN/2nq4/7P/P1pN2Br/1r1n1Q2/4p1bR/1KB3Qb/2nbnQ1R w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 f4 g5 a4 c5 d4 Kc7 Kd2 e5 Kc2 b5 f6 e4 h5 b3+ Kc3 b2 f5 g3 f7 g2 f6 b4+ Kb3 g4 a5 g3 Bg5 e3 Bd3 Nc6 d6+ Kb8 d5 Bg4 d7 Bd6 f8Q Qc8 d8Q Nge7 Ne2 g1B f7 g2 Nbc3 b1N Rh3 Nd2+ Kb2 b3 Qf1 Nd4 Bc2 Bgh2 Ng3 g1N Nf5 Ngf3 Nh6 Ne1 Ng8 Bdg3 d6 Bd1 d7 Nd5 Qg2 Rh7 Qf6 Nc7 d8N Ra7 Qff2 Rb7 Qff1 Rb4 Nd5 Qd7 Qh6 Rh8 f8B Qc8 Ka3 b2 Nf7 b1Q Qhf6 Rh6 Q6f4 N2b3 Nh8 Qc1+ Ka2 Qd2 Kb2 Qd3 Rb1 Qdf5 Ra1 Qfd7 Rc1 Re6 h6 Re5 Ra1 Nc1+ Ka3 Ned3 Q1f2 Bg4 Bd8 Ncb3 Rh1 Rh5 Bg5 Ne1 Qff1 Bd1 Kb2 Nc1+
2N1Rq1N/r5n1/qr5p/K2pP3/Q1N3R1/1B1Q1bRP/bQ3nb1/2Bbkq2 w - - 0 1 illegal: No possible last move, all moves rejected
1r2QR2/KB1qBqr1/n1r1Q1P1/1q4q1/1B1Q2bp/N4kP1/N2b3p/1RnR4 w - - 0 1 illegal: No proof kernel
2k1N3/1r6/1b2PqRq/1rPNBr1R/B4n1q/R1QppB2/3n2Q1/3KQbq1 w - - 0 1 illegal: No proof kernel
2r2Bkb/6N1/qR2P1Kp/1bNr4/pP3Bn1/qq2RN2/Q1nQ2Bb/3Q1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 a5 Ke4 f3 b4 h3 d4 h6 g4 h2 b6 c4 b7 c3 d6 f6 d7+ Kf7 Kf5 f2 e4 c2 e5 Nc6 b8B Bg7 g5 Ba6 d5 Bb5 Bd6 Rc8 Bg2 f1B Bf4 c1B Nc3 a4 Nf3 Bb2 Rg1 h1Q Bf8 Qh2 d6 Qg3 Ra3 Nd4+ Ke4 Qc7 d8Q Qc4 d7 Nc2+ Kf5 Qb3 Ne4 Rh7 Nc5 Bh8 Qb6 Bd4 Qd6 Bf2 Q6d2 Be3 Rh1 Bg1 Rh5 Bh2 d8N+ Ke8 g6 Rd7 g7 Rd5 Nde6 Kf7 Ne1 Qge3 Nf3 Qed3+ Kg4 f5+ Kh4 Nf6 g8Q+ Ke8 Rg5 Ng4 Kh5 Qdc3 Kg6 Qe3 Bg3 f4 Rf5 Qec3 Rf7 Qcb2 Rb7 Qa1 Rb6 Qaa2 Nh4 f3 Bf4 f2 Nf3 Qab2 Ra1 Q2a3 Rc1 Nd4 Rc3 Nc2 Re3 Ba6 Ned4 Bfb5 e6 f1Q Nf5 Qfc4 Nd3 Qc6 Nc5 Bf1 Qg7 Bab5 Qb2 Qa8 Qa2 Qb7 B8d6 Qa6 Ng7+ Kd8 Bc7+ Ke7 Bd8+ Kf8 Be7+ Kg8 Bed6 Re5 Bf8 Rd5
Qbqn4/2qR3B/r2PrPR1/1NQ4B/K1n1p1N1/3k3b/1qp3N1/3bBqR1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 Kd2 h5 Kc3 e5 Kb3 c5 f4 a5 b6 c4+ Ka4 e3 b4 h3 d6 e2 d7 e1Q b5 e4 d5 h2 b7 h4 b6 c3 f5 Ke5 f6 c2 g5 h3 g6 Qc3 g7 Qcc7 Qh5+ Kd4 Nc3 Ra6 Bd2 Nc6 b8Q Ne5 b7 Bd6 Be1 Ne7 g8B Nc4 Bh7 Re8 Nge2+ Kd3 Nb5 Nc6 Qa8 Re6 Rg1 h1B b8N h2 Rg6 Bf3 Qf5 Qg8 d8R h1Q Rd7 Nd8 Nc6 Qe8 Bh3 Qf1 Bg4 Bf4 Bh5 Bd6 Ng1 Bd1 Nf3 Bh2 Nh4 Bg3 Kb3 a4+ Kb4 a3 Ng2 a2 d6 Bf2 Rb1 Ba7 Qc5 a1Q Rc1 Rb6 Rb1 Qb2+ Ka4 Bb8 Bg3 Qh8 Ne5+ Kd2 Ng4 Kd3 Be1 Ra6+ Ba5 Re8 Re7 Bf5 Rd7 Re6 Ra1 Nf7 Rc1 Qhc8 Ra1 Nd8 Rb1 Rb6 Be1 Be2 Ba5 Qfc1 N4e3 Bh3 Ng4 Ra6 Ra1 Qf4 Rf1 Bd1 Rg1 Rb6 Bb4 Qf1 Be1 Ra6+
Q6N/1QR1K2n/B1P1N1rp/qPR1p3/k3br1B/1nbBqr2/2qN3q/7Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 a5 Kg5 e5+ f6 h3 g4 h2 c4 a4 b4 d3 f4 d2 b6 Kc6 f5 d4 c5 d3 b7 Kb5 c6 a3 Nh3 a2 Nf4 Bd7 Ng6 Qa5 f7 Ra6 f6 Bc5 f8N Bd4 f7 Bf5 Ne6 Nf6 f8Q Nbd7 Qa8 Rf8 Nh8 Nc5 b8Q+ Rb6 Qab7 Be4 Q8a8 Nb3 Qf3 d1R Nd2 Re1 Rg1 Qa7 Qh1 Bc3 Ba3 Re3 Rc1 Ka4 b5 a1Q Be7 Rf3 Bd8 Bb2 Rc5 Bc3 Be2 Ra6 Rf1 Rg3 Rf5 h6+ Kg6 Bf3 g5 Nh7 Rf7 Be4+ Kg7 Qe1 Rc7 Rf4 g6 Rg1 Bg4 Qe3 Bh4 Qb6 Kg8 Qa5 g7 Rf3 Bf5 Rg6 Kf7 Ra7 g8B Ra6 Qd1 h1Q Ke7 Qh2 Qh1 Ra7 Bf7 Ra6 Be8 Rf4 Bd7 Ra7 Nf3 d2 Bc8 d1Q Nd2 Qb1 Bg3 Qc2 Bh4 Bg2 Bd3 Be4 Qb6 Rf3 Ba6 Rb7 Qba7 Rb8 Qb6 Rbf8 Qbb7 R8f4
1q3Qr1/Q2Bn2k/1RP1bBpn/PRrpN3/3b3K/1rNr2Bq/1Q6/1R2b3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 c4 b5 a4 e5 f4 d5 Kf2 b3 Kg3 d3 c5 e4 a5 b4 c6 e3 h6 g6 f6 b2 h7 d2 f5 b3 h5 e2 h6 Be6 Nf3 Bc5 Nc3 b1R Bh3 b2 Qg1 d1R Bf4 Qe7 Ne5+ Kf8 f7 Qd7 Kh4 e1B+ Bg3 Rbc1 Rb1 Ne7 Bg4 Rg8 h8Q Rd4 h7 Rd3 Qf6 Qc8 h8B Nd7 Rh3 Rb8 Rh2 Bd6 Qa7 Bc5 Re2 Rc2 Re4 Rb3 Rb4 Bd4 Rb5 Nb6 Na2 Rc5 Nc3 Qd7 Bh3 Nbc8 Bg4 Nd6 Bh3 Nec8 Qg7+ Ke7 f8R+ Nf7 Rd8 Re8 Qf6+ Kf8 Bg4 Ne7 Rdb8 Kg8 R8b6 Nh6 Qg5 Ra3 f6 Bf7 Qc1 Ra4 Rb4 Ra8 Rb7 Nc8 Ra1 b1Q Bg7 Qb2 Rb1 Ra3 Be6 Qb3 Qb2 Kh7 Rb8 Bg8 f7 Ne7 Bh3 Qf5 Bf6 Qe6 R4b7 Qb4 Bg4 Rb3 Bf5 Qb6 Bh3 Qd8 Rb5 Qc7 R8b7 Rc8 R7b6 Qb8 f8Q Qf5 Qe8 Qf1 Bd7 Be6 Bg7 Rd8 Qf7 Rh8 Qf8 Rg8 Bf6 Qh3+
3Nn1bn/NBk4b/R1prb3/pR3q2/1bQ1P1K1/2r3n1/P1q5/B1Q1Q1RN w - - 0 1 illegal: No possible last move, all moves rejected
b3k1Kn/Q2N1N1Q/PnBrpR2/5p2/3B4/1nR1bR1B/q1P4r/rq2nQ2 w - - 0 1 illegal: No proof kernel
kB3b2/1q2R3/p1N1RB1P/qr2b3/n2RB1b1/2Q1q2Q/K3qrPp/n2N3Q w - - 0 1 illegal: No proof kernel
3nQ1q1/1B3QNP/1n3PN1/2npp1k1/2rb1Nb1/b5BR/R3b2Q/r4KRq w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b4 Kf7 f4 Kf6 c4 a5 h4 d5 c5 g5 b6 e6 h5 g3 b5 d3 c6 g2 c7 a4 h6 g4 b7 a3 h7 a2 b6 g3 Qf3 Qe7 Na3 Qd6 Nb5 Nh6 Rh3 Qc6 Ne2 g1N Nd6 Nd7 b8Q g2 b7 d2+ Kf2 d1B Ne8+ Ke7 Rb1 a1Q Ng7 Nb6 f6+ Kf7 f5 e5 Nf4 Qe6 Ba6 Ne2 Bd2 g1B+ Kf1 Nc1 Be1 Bgc5 Bg3 Nb3 Qa7 Bf2 b8Q Nc5 Bb7 Bd4 Qa2 Ra4 Qa8 Rc4 Qh2 Qe8 Qb8 Be7 Rb2 Qg8 Rg2 Qb1 Rg1 Qe4 Qff2 Qh1 Qf3 Bd7 c8R Na6 Ne2 Rb4 Rc2 Qd8 Rd2 Rb1 Ra2 Ba3 Qa8 Ra1 Qh5+ Kf8 f7 Ke7 f8N Kf6 Qc8 Nf7 Qf3 Kg5 f6 Qe8 Qe4 Bg4 Qc6 Qc8 Qec2 Qe6 Ng6 Rc8 Qe8 Nd8 Nef4 Qg8 Qf7 Rc4 Qa4 Nc5 Qae8 Bde2#
4KR2/3nr2p/1QN1q2k/1nn2BbP/1r2Qpq1/Rr6/1Bb1RPNQ/5Br1 w - - 0 1 illegal: No possible last move, all moves rejected
4r3/3R1Qp1/2Bn1b1b/1nN2b2/K2pPQBP/N2q1N1R/b1Rr1q1q/2B4k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Kf6 Kc2 Kg5 Kb3 Kh4 e4 d5 h3 Kg3 h4 f5 c5 a5 b6 d3 h6 f3 b7 f4 c6 a4+ Ka2 f2 b4 a3 Kb3 f3 h7 a2 c7 d2 b5 Bb4 b6 Nh6 Bh3 f1Q Bb2 f2 Qh5 Na6 b8R Qg2 b7 f1Q Qf7 Qh2 Bd7 Kg2 Bc6 Nf5 Na3 Re8 h8N Nd6 Bc1 Qf2 Ka4 Bf5 c8B Qd7 Rb1 a1B Ng6 Bf6 Rb2 d1B+ Rc2 Bd2 Ne5 Bh6 Nd3 d4 Nf3 Nc7+ Kb4 Ra6 Nc5 Ncb5 Ra8 Be2 b8Q Bc4 Ra7 Ba2 Rc7 Rb6 Ka4 Qe6 Rd7 Qc4+ Ka5 Qd3 Ka4 Qf4 Rh3 Qh2 Qc7 Kh1 Qb8 Na7 Qc7 Rb2 Qb8 Nab5 Qc7 Nb7 Qf4 N7d6 Re7 Bh7 Bg4 Bg6 Rd7 Bf5 Rc4 Re2 Rc2 Rd2
4NR1q/2R1r1pQ/2N2n2/BPr3B1/p3Bb2/1kP1n2q/3K1QR1/q1r2rQb w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b4 Kf7 h4 e5 f4 d5 b6 a5 h5 a4 c3 d3 b5 g3 h6 d4 h7 e4 b7 g2 f6 Ke6 f5+ Kd5 f7 Kc4 f6 e3 Nf3 g1Q Rh3 e2 Rh2 Qe3 Bd2 Na6 b8B Nb4 Bc7 Bb7 Rg2 Ra7 Ba5 Bd6 f8R Bf4 f7 Nf6 Ra2 Rg8 h8Q Nbd5 Qh7 Qb8 Rc2 Kb3 Ne5 Qh3 Nc6 Ne3 Na3 Ba8 Qa1 Re7 Nc4 Qd8 Bc1 Bb7 Kd2 e1R Be2 Rf1 Bf3 Rh8 Be4 Qb8 Qg6 Rh5 Nd6 Rc5 Qh7 Qa8 Rc8 Qb8 Rc7 Qh8 f8Q Ba8 Bb2 Bb7 Qe1 Ba8 Ne8 Bb7 Kc1 Ba8 Rcf2 d2+ Kb1 d1R+ Bc1 d3 Rf3 Rh1 Qg1 d2 Rff2 Rf1 Qf7+ Nfd5 Qf6 d1Q Qd4 Bh2 Rf8 Bf4 Qd2 Qe1 Qdf2 Nf6 Nb4 Qg8 Rg4 Nc2 Bb7 Be5 Qgg3 Rfg1 Bf3 Be4 Nc6 Qh8 Rg6 Qd1 Rg5 Re1 Rg6 Rhf1 Qgg1 Bd3 Rg5 Be2 Be4 Bf3 Rg6 Bh1 Rg2 Kc4 Kb2 Bh2 Bh6 Bf4 Bg5 Ne3 Rd7 Ned5 Rc7 Qa1+ Kc2 Ne3+ Kd2 Kb3 Qfh4 Rb1 Qhf2 Rbc1
Q3n3/2Q1q1pn/r1nP2bN/3nR1BR/R2K3b/Q2Nr3/B2q1Pp1/kqN5 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 Kd6 h4 Kc5 d4+ Kb4 b6 c5 b7 a5 d6 e5 h5 c4 h6 g3 b3 a4 d7 c3 h7 g2 d5 c2 d6 a3 Bb2 c1Q+ Nd2 a2 Nh3 Ra6 Bc4 Nf6 Bf7 Ne8 Qe1 Be7 Nf4 Nc6 Rh5 Qb1 Qc1 Bh4 b8Q+ Bb7 Bd4 Qe7 d8Q Rg8 Qc3+ Ka3 h8N Bc8 Qb7 Bf5 Qda8 Bg6 Nd3 Rf8 Be6 Rf4 Qc7 Rf3+ Ke2 e3 Nf7 e4 Bf6 Rh3 Nh6 Rf3 Bg5 Rg3 Nf4 Rh3 Qd3 Kb2 b4 Rg3 Nb3 Rf3 Nc1 Rh3 Ke1 e2 Kd2 e1N b5 e3+ Ke2 Nf3 b6 Rg3 b7 Rh3 Nd5 Rg3 Nb4 Rh3 Bf4 Ng5 b8R Nh7 Bg5 Rg3 Rb5 Rf3 Ke1 e2 Kd2 Re3 Re5 e1N Bc4 Nc2 Bd5 Re4 Qh3 Ne3 Be6 Nd5 Nbd3+ Ka3 Qg3 Re3 Bg8 Ndf6 Kc3 Nd5+ Kc4 Qb2 Rb1 Qe2 Rb4 a1Q Qh3 Qb1 Qf3 Na5+ Kd4 Qd2 Qg3 Nc3 Bb3 Nd5 Ba2 Nc6+ Kc4 Qdb2 Nf4 Qd2 Ra4+ Kb2 Qh3 Re2 Qa3+ Ka1 Nfd3 Re3 Kc5 Ncb4 Kd4 Nc6+
4B1k1/1bbN1pr1/b2K4/3Q1RNn/BQ1b1B2/PRr1P2q/1qn2pnN/R7 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 b5 Ke5 h4 g4 c4 d4 c3 a3 h3 g6 h2 g7 b3 g5 c2 d6 f3 d5 b4 g6 f2 Bf4 c1B e3 b2 Qa4+ Qd7 Bd3 b3 Qb4 Nf6 g8N Nh5 g7 Na6 Nc3 b1N Nf3 b2 Bb5 Nd2 Ne4 b1Q Neg5 Rh7 Rf1 h1B Nh2 Ra7 Rg1 Rc7 Nf6+ Kd8 g8B Rc3 Rg2 Rg7 Bh7 Bb2 Bc2 Qh3 Nd7 Ke8 Bca4 Be7 Bc6 Bd8 Rg1 Qa2 Rgb1 Bc7 Bcb5 Bb7 Bc6 Bf3 Bcb5 Be2 Bc6 Bc1 Rb3 Bb2 Nf6+ Kf8 Be8 Qg3 Qb5 Nb4 Qc4 Nc2 Qb4 Ba5 d7+ Rc5+ Rc3 Bf1 d8R Qh3 Ra8 Bb6 Ra5 Bfa6 Rb5 Nd4 Rb3 Nc2+ Qd4 Rc6 d6 Bc7 Kd5 Qb1 d7 Nf3 d8Q Nh4 Qc3 Ng2 Qb4+ Rd6+ Kc5 Rd3 Qdd4 Bc3 Nd7+ Kg8 Qe4 Qb2 Qed4 Bd8 Kd6 Bb6 Rf5 Ba5 Qd5 Bd4 Rh1 Rc3 Ra1 Bc7+
1Bn2k1b/2R2pr1/3bqqp1/RK3B2/B1Rr4/QNPnP1Q1/4n1nQ/2Nb4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 d5 Kd3 a5 b4 a4 h4 g3 c3 g6 e6 a3 e7 g2 h5 a2 b6 Qd7 b7 Nc6 b8Q Rh7 h6 Ra4 b5 Rg7 b6 Qe6 h7 Qf6 Qa7 Bg4 h8R Rc4 b7 Rb4 Nh3 g1B Nd2 Bh2 Qa6 Be5 Nf2 Qe6 R8h5 Ra4 Rb1 a1Q Bh3 Rc4 Qa7 Qa6 Qg1 Qf6 b8Q+ Qc8 Qbc7 Qce6 Qg3 Bf3 Kc2 d3+ Kb3 d4 Qa3 Bd6 Ra5 Bh5 Nde4 d2 Nc5 d1N Bf4 d3 Bf5 d2 Nfd3 Ne3 Rh4 d1N Nc1 Ng2 e3 Nb2 Be5 Ra4+ Rc4 Nd3 Qh2 Rh7 Ra1 Bg7 Ra7 Bh8 Qb8+ Qc8 Rc7 Rg7 Bg3 Ndf4 Ra2 Ne5 Ra1 Ne2 Bf4 Ra6 Kb4 Nd3+ Kb5 Ra4 N5b3 Bg4 Qb7 Qce6 Qf3 Ng1 Qfh3 Bd1 Q3g3 Ne2 R7c5 Kd7 e8B+ Ke7 Rc7+ Kf8 R7c6 Bc2 Rd4 Ra5+ Kb6 Rh7 Qb4 Be7 Bb8 Rd5 Rc4 Bd1 Ra5 Rg7 Qa3 Bd6 Rc7 Rd4 Ba4 Ne7 Kb5 Nc8
1R1b1B2/1q3p2/bBprrNn1/1k6/r1q3QQ/B1Rq1n2/NN2PP2/Q1r2K2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 g3 e6 d6 Ne7 d5 Nbc6 Bg2 Nb8 Be4 Ng8 Bg2 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Ra4 Kf5 Ra1 Ke6 b4 h5 g4 a5 g5 d4 b6 Kd5 b5 Kc5 g6 d3 b7 h3 b6 a4 g7 h2 Nh3 a3 Qa4 a2 Rg1 h1R Kf1 d2 Qg4 h4 Ba3+ Kb5 Nf4 h3 Nd3 h2 Nb2 Nc6 b8B Nge7 g8N Ne5 b7 Nf3 Nf6 Ra4 Ba7 c6 b8B Ba6 Bb6 Ng6 B8a7 Qc7 d8Q Rh6 d7 Qb7 Qa8 Be7 d8Q Rd4 Bbc5 Rd6 Bab6 Re6 Qdd4 Bd8 Bf8 Rd6 Qh4 Re6 Qdg4 d1Q+ Kg2 Qd2 Rc1 Qd3 Rc3 Rc1 Qa7 Rh5 Qa8 Rd5 Qa7 Rdd6 Qa8 Ne1+ Kf1 h1Q+ Qg1 Qhf3 Bac5 Qfd5 Nd1 Q3f3 Ba5 Qfe4 Rg3 Qe7 Nbc3+ Kc4 Rb1 a1R Rb8 Bb5 Bab6 Qb7 Rd3 Qed4 Qgg4 Nf3 Qa3 Ra2 Qb2 Q4e4 Qa1 Ra4 Ba3 Ba6 Na2 Kb5 Re3 Qec4 Rc3 Ne1 Nb2 Qdd3 Kg1 Nf3+ Kg2 Rc2 Kf1 Rc1+
3rn1k1/2NPR3/1b1r2N1/rR1b4/KN3Qn1/p1p3r1/qb1R1PBQ/1q1BB3 w - - 0 1 illegal: No possible last move, all moves rejected
1qN1K3/bRRPq1p1/p3n1B1/N4N2/Pr1Rr1rb/5k2/2q2Bn1/2Qr1QB1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 h5 gxh5 b5 Be2 bxc4 Bd3 Bd7 Bf1 Bc8 f3 e5 Qb3 e3 Kd1 e4 Kc2 e2 Qa4+ Bd7 Qb3 e3 Qa4 Bc6 Qb3 Be4+ fxe4 Ne7 Kc3 Nd7 Qd1 Nb8 Kc2 Ng8 Kc3 Ke7 Kb4 Kf6+ Kb5 Kg5 h4+ Kg4 d4 c5 a4 f5 b4 c3 d5 c2 h6 c4 e5 c3 h5 f4 h7 f3 e6 e1B h6 e2 e7 f2 e8N Qf6 d6 Na6 Kc6 Be7 Kd7 Qf8 b5 Bf6 b6 Bd2 b7 Nc7 b8B a6 Rh4+ Kg3 Na3 e1R Nf3 Ra7 Rb1 Be3 Rb7 Bfd4 Nc4 Ne6 Na5 Ne7 Bd3 f1R Bg6 Bg5 Be3 c1Q Bg1 Qcf4 Qc1 c2 Bc7 Q4f7 Bb6 Re4 Rc7 Bf2 Nd4 Rb7 Nf5+ Kf3 Rg4 Bfh4 Bbf2 Rbb4 Rb7 Be3 Rc7 Rg8 h8R Rd1 h7 Ba7 Rb7 Rec4 Rd4 Qf6 Rc7 Nd5 Rb7 Ne3 Rc7 Ng5 Rb7 Qe6+ Kd8 Ng2 d7 Qfd6 Rc7 Rf8 Rg8 Rf7 h8Q Re7 Rb7 Qh2 Ned6 Qf6 Nc8 Qb8 Qh7 Qf7 Re8 Re4 Qg8 Qe6 Qf8 Qed6 Re5 Ne6+ Ke8 Rg4 Rc5 Qe5 Rd6 Rce4 Rcc7 Qc5 Rd4 Qd6 Qb1 c1Q Qa1 Qe5 Qc5 Qb1 Qc1 Qc2 Qab1 Rd2 Qf1 Rd1 Qb2 Qec5 Qc1 Qe7+
1K3B2/3pP1q1/k1r2b2/1N1P2b1/1rR3NR/2n1RQQ1/N1b1bp1Q/q1nrB3 w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 exf4 gxh5 c6 b4 Qb6 Bg2 Qd4 b6 Rh7 b7 Qe5 b5 Qc7 b6 Rh8 Be4 Qd8 Bd3 Rh6 Bc4 Rh8 Bb5 cxb5 Kf2 f5 Kf3 a5 e4 g5 h4 b4 c4 a4 d4 b3 h6 b2 d5 a3 h7 a2 e5 Nh6 e6 Qf6 c5 Kd8 h5 Ra6 c6 Qg7 Nh3 Nf7 h6 Be7 Bd2 Nd6 Na3 b1B Be1 Ne4 Nb5 Bc2 Nf2 Nc3 Ng4 Bf6 Rh4 Rg8 Rc1 a1Q h8Q Ra4 h7 Rb4 Qd3 Na6 b8N Nc5 b7 Nb3 Na6 Re8 Rd1 Nc1 b8Q Rf8 Qd6 Bb7 e7+ Kc8 c7 Re8 Nc5 Ba6 Nb3 Kb7 c8R Rg8 Rc6 Rc8 Rc4 Rc6 Qe4 Kb6 Rd3 Kb7 Re3 Kb6 Kf2 f3 Kg3 f2 Qf3 f1R Qg8 Rh1 h8B Rf1 Bd2 Rd1 Be1 Qg6 Bg7 f4+ Kf2 Kb7 Bf8 Qg7 Qh7 Kb6 Qh5 Kb7 Qg3 f3 Qde5 N1e2 Nc1 Kb6 Na2 Nc1 Qh2 Ka5 Kg3 f2 Nh6 g4 Kf4 g3 Qf3 g2 Ng4 g1B Qhg3 Bh2 Qh5 Qg6 Qh7 Bg5+ Ke5 Qg7+ Nf6 Rc7 Kd6 Kb6 Ng4 Bf6 Qe5 Bf4 Qd3 B4g5 Qh2 Bb7 Qfg3 Ka6 Qe4 Rc5 Qef4 Bc6 Kc7 Bb7+ Kb8 Rc6 Qh1 Kb6 Qff3 Ba6 Nd4 Bb5 Qhg1 Ka6 Q1h2 Bba4+ Nb5 Bab3 Rd4 Bc4 Rf4 B4d3 Rc4 Be2
4Q2B/rkP2qNb/1q3p1q/7R/2nR3P/R1b1n2K/5pqQ/1NBQrB1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 Kg2 a5 c4 d5 b4 Kd7 e4 Kc7 h4 f3+ Kh2 d3 e5 g4 e6 a4 e7 f2 e8Q d4 b6+ Kb7 b5 d2 h6 a3 c5 f6 h7 d3 Kg2 a2 Qc2 d1Q Rh2 d2 Bd3 g3 Rh1 Nh6 Qe1 Nd7 Ne2 Ra7 Qa4 Nf5 Kh3 g2 Ng3 g1Q Nh5 Ne3 Ng7 Qh5 Bf1 Qf7 Qad1 Be7 Qee2 Re8 h8B Qg5 Rg1 Ne5+ Rg4 Qh6 Qee1 N5c4 c6+ Ka8 Qee2 Bb7 Rd4 Bb4 c7 Bc3 Qh5 Bc6 Qe5 Bh1 Qd6 Qb8 Qh2 Ra5 b7+ Ka7 Qc2 d1B b6+ Ka6 Qd2 Bc2 Qd1 Qa7 b8R Bh7 b7 Qb6 Rc8 Ra3 b8Q Re6 Re8 Re7 Qd8 Kb7 Qd7 Ra7 Rd8 Re6 Qe8 Re4 R8d5 Re6 Rh5 Re7 Na3 Re6 Rb1 a1Q Rb3 Qb2 Nb1 Qc2 Qg1 Qe4 Qh2 Nc2 Bf4 Qd5 Bd2 Re1 Ra3 N2e3 Bc1 Qg2+
BbQK3n/1qPQ1R2/1pr3k1/NB3rb1/1PR3n1/1q2p3/qQ1N1B2/b1q4N w - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 d4 cxd4 a5 g5 hxg5 b6 a6 Bb7 axb7 Qc8 Kd2 Qc7 Ke1 Qd8 Kd2 Kf7 f4 h5 g4 a5 b4 e5 c4 d5 f5 d3 Ke3 h4 c5 h3 c6 d2 f6 h2 Ne2 a4 Ng3 a3 Bb5 a2 Rf1 Nh6 Nh1 Kg6 f7 Bd6 f8Q Nd7 b8N Ra5 Rf7 Nf6 Qa4 d1Q Nd2 Qe7 Qc8 Qc2 Qb3 Rg8 Qd7 Rc8 Bb2 Bc7 Rc1 a1B Bd4 Qa2 Qb2 Bd8 Rc4 Rc7 Kf2 e3+ Kg3 e2 Bf2 e4 Kf4 Qc5 Ke5 e1B Ke6 e3 Nf3 d4 Nd2 Qf5+ Kd6 Qf3 Ke6 d3 Kd6 Rb7 Ke6 Bc7 Ke7 Be5 Kd8 Rc7 Na6 Qd1 Nc5 Qc1 Nb7 Bd6 Bg1 Bh4 Bf2 Ra3 Na5 Rc3 Rf4 Rc5 Rc4 Rf5 Qc8 Re7 Qd7 Bb8 c7 Re6 Be1 Nfg8 Bf2 Ne7 Rf6+ Kg7 g6 Rc6 g5 Ng4 Rf7+ Kg8 g7 Kh7 g8B+ Kg6 Ndb3 d2 Bh7+ Kh5 g6 d1Q g7 Bg5 Bg8 Kg6 Nd2 Qdb3 Bh7+ Kh5 g8Q Ng6+ Re7 Nh8 Qge6 Rf3 Be4 Rf7 Qc8 Rf5 Qed7 Kg6 Bd5 Re6 Ba8 Ref6 Ng3 h1Q Rf7 Qb7 Nh1 Rc6+
2q1rR1R/1QPQ1bK1/1pq4N/P2QqRB1/4n3/1r1rb1nB/2p2BN1/2k3q1 w - - 0 1 illegal: No proof kernel
3b1N1k/KPRRbQ2/Bbp5/qQ3n1q/1B1n2pr/1P3b2/Bq2r2N/3NR3 w - - 0 1 illegal: No possible last move, all moves rejected
2RBn2q/1PQBbqkn/P1b1K2r/1N3Bp1/4n3/1p2bN2/3N4/r1R2QRb w - - 0 1 illegal: No possible last move
1Bbk4/1PNBbP2/2Bpn1Q1/K1R3Q1/2q1q2N/pnb1Nrb1/7Q/R3n1r1 w - - 0 1 illegal: No possible last move
kr2RB1b/1pr1q3/3n1R2/1b1qq3/2B1r3/2p3PR/1nPBK2N/1Q2QQrN w - - 0 1 illegal: No possible last move, all moves rejected
3q1b2/P2N1Bk1/2q1R2r/2N1qQB1/Q1P1p1np/2Nb1r2/5n1b/1K1R1BbR w - - 0 1 illegal: No proof kernel
2QBq1N1/PR3r1N/2r1BQb1/1Q3Nn1/1p3pn1/kr3RP1/3Kr1b1/4bR1q w - - 0 1 illegal: No possible last move
2bNbnBB/Pr3nr1/2PQnk2/qR1Q2pR/1NKR4/3p2B1/4Q3/1bq3b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 e5 a4 d5 c4 g5 f4 b5 h4 b3 f6 b2 f5 b4 h6 b3 h5 Bb4 h7 Be7 c5 Bd6 a5 Nd7 a6 Nf8 c6 Qe7 a7 Nd7 h6 Rb8 Rh5 Qd8 Nc3 Nf8 Rb1 Bc5 Bf4 Qa5 Nge2 Rb7 Na2 Bb6 Nb4 e4+ Kd2 e3+ Kd3 Bc5 Bg3 Bb6 Nf4 e2 Ne6 e1N+ Ke2 Nf3 Kd3 Bc5 Qc2 Bb6 Rd1 b1B Nd8+ Ke8 f7+ Ke7 Bg2 b2 Bh3 Ba2 Qe2+ Kf6 Bf1 Ne6 Rd2 Nh4 Bh3 Ng6 f8R+ Ke7 Re8+ Kf6 Rd1 Ngf8 Rd2 Nc7 Re5 Nce6 Bg2 Ne7 Rd1 Rg8 h8Q+ Rg7 h7 Neg6 Qg8 Nh8 Be4 Nf7 h8B b1B+ Qc2 Ke7 f6+ Ke8 Bh7 Bc4+ Kd2 d3 Kc3 Bg1 Qe2 d2 Rf5 Bcd3 Kb3 d4 Rb5 Bg6 Kc4 Nh6 f7+ Ke7 Nd3 Kf6 Nb4 Nd7 f8Q+ Nf7 Qd6 Nf8 Re1 d1Q Rf1+ Bgf5 Rf4 d3 Rd4 Bg6 Qd5 Nd7 Qf8 Qd2 Qfd6 Nf8 Bg8 Qc1+ Nc2 Nh6 Bh2 Be8 Bg3 Qf1 Nb4 Nf7 Qb8 Qe1 Qbd6 Qc1+
1QRr4/PQ1NBp2/r2B1P1q/p1NQ3b/3bbq2/3nkNRb/n2q4/K4B2 w - - 0 1 illegal: No proof kernel
2nB1Bn1/P2R1pr1/1nqp2bN/8/K4P1B/Q1Q2rQ1/1b1R2N1/N2nq1qk w - - 0 1 illegal: No possible last move
bn2q3/1r4P1/1pNRB3/Rb2rbNN/1P6/1bBQp3/QK1b2R1/n1B1b2k w - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 cxd5 f5 exf5 a4 Qb3 axb3 Kd1 Kf7 f4 Kf6 g4 e5 d4 h5 a4 c5 d6 e4 d5 c4 d7 b2 Kc2 e3 a5 h3 a6 h2 a7 h4 d6 h3 Ra5 c3 Nd2 b6 Bc4 Rh5 Nf1 Ne7 Ng3 Bg7 Be6 Qe8 d8R Bd7 Nf3 Bb5 d7 Nec6 Rg1 h1B Ng5 h2 Rg2 b1B+ Kb3 c2 Kb2 Ke7+ f6+ Kd6 f5 Ke5 f7 Kf4+ f6 Nd4 f8Q Nb3 Qf7 Na1 Qg6 Ba2 Qd3 Bb3 Rc8 Rh7 d8N Bh8 Rc6 Rb7 Rd6 Bg7 Rg1 Be4 Rg2 h1B Nc6 Bh7 Rh2 Bf5 Rg2 Bh6 f7 Bg7+ Qc3 Bf6 f8B Be7 Bg7 Bd8 Nh7 Kf3 Qd3 Bh4 Nh5 Bg3 g5 Be1 Rg1 Kf2 g6 Bf3 Rg4 Bg2 Bh8 Kg1 Bc3 Kh1 g7 Bf3 Ng5 B3e4 B1d2 Bf3 Rg2 c1B+ Kb1 Bb2 Bc1 Bd2 Bd4 Bbc3 Bf6 Be1 Bd4 Bcd2 Bc3 Na6 Kb2 Rc8 a8Q Nb8 Ne7 Rc5 Nc6 Re5 Qa6 Rc7 Nd4 Ba8 Nc6 B5a4 Qac4 Rb7 Qcd5 Bb5 Q5c4 B3a4 Qa2 Bb3
1R2b1k1/r2PQ2b/B6Q/P1n2b1Q/Np3Nbr/3pq2n/2KR4/bNb1R1B1 w - - 0 1 illegal: No possible last move, all moves rejected
Rb4Q1/3PBNbK/pnP1Rbr1/8/pQ2B3/1b1rq3/1bQ2B1k/n1R3bN w - - 0 1 illegal: No proof kernel
5QQb/k1B2K2/2B1q2R/2r1R2N/2Q1PnRb/p5rN/n4Pnp/bn3bN1 w - - 0 1 illegal: No proof kernel
6r1/B1QRB1r1/1b2Nb2/1P4R1/pK2P2r/3BQ2n/1nbp2R1/k1q1QbrN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 h4 Ke6 c4 Ke5 b4 d5 e3 g5 b6 a5 b5 f5 b7 f3 h6 d3 Kc3 d4+ Kb3 a4+ Ka2 f4 h5 f2 c5 g4 Ka3 d2 h7 d3 h6 g3 Be2 f1R Kb4 f3 Ra3 f2 Nc3 g2 Rh2 Qg5 Qe1 d1R Ne4 Be7 Nh3 g1B Nf4 Nf6 Ne6 Nh5 Ng3 Nd7 Rg2 Nb6 Nh1 Bf6 c6 Nc4 c7 Nb2 b8B Nf4 Ba7 Nh3 Ra1 Bb7 c8Q Be4 Qc7+ Kd5 Ra2 Rag8 Ra3 d2 Bd3 Rg7 Rb3 Rhg8 h8R Qe5 h7 Qc3+ Ka3 Qc2 Rb4 Bg6 Rbg4 Qb1 Kb4 Qa1 Bb1 Bc2 R4g3 Ke4 Rg5 Kd3 e4 Re8 Kc5 Kc3 Rg8 Ra8 Rd8 Rc8 Rd7 Rcg8 h8Q Kb3 Qe2 Rfe1 Qh6 f1B+ Qf2 Re3 Qe1 Rf3+ Qf2 Rf4 Qh4 Re1 Qd4 Rd1 Qe1 Rh4 Qdf2 Nc4 Ba3 Nb2 Ba2+ Kc3 Bc4 Qc1 Bd3 Kb3 Qee3 Ka2 Qfe1 Ka1 Kb4 Bf2 Ka5 Bg1 Be7 Bf2 Kb4 Bg1 Q3g3 Bb6 Qee3 Be2 Qgf2 Rg1 Qe1 Bf1
1qQB4/KR1q2P1/2Q1q1r1/N1p3pr/3b1NPq/k2B1R1n/2BNb1q1/1r5R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 h5 dxc4 Ra4 Nd7 Ra2 Ne5 Ra1 Ng6 hxg6 Bd6 Rh5 Be7 Rh1 Bf8 Kf2 Kd7 d4 Kd6 b4 a5 e4 h5 g4 f5 b6 f3 Ke3 a4 g7 f4+ Kf2 a3 b5 a2 b7 h4 b8R h3 b6 c3 b7 c2 d5 Kc5 e5 Kb4 d6 h2 d7 Ra6 e6 Nf6 e7 Rh5 e8B Bc5+ Be3 c1Q Bd4 Qb2+ Qc2 Nd5 Bd3 Rg6 Nd2 Ka3 Rf1 a1Q Nh3 Qaa2 Qc4 Qe7 d8N Qd7 Nc6 Qb5 Be3 Bd4 Na5 Qb6 Bc2 Qbe6 Qc6 Qb3 Bf7 Qb6 Bg8 Qa7 Bh7 Qa8 Ke1 f2+ Ke2 f3+ Kd3 Qa7 Kc4 Nf4+ Kb5 Qa8 Ng1 Nh3 Ne2 Qa7 Nf4 Qa8 Rfg1 f1R Rg3 f2 Rf3 Rg1 Bd3 f1Q Bf2 Qg2 Bc2+ Bc3 Bb6 Rb1+ Kc5 Rf6 Bhd3 Rg6 Qd6 c6 Bd8 Bb2 Kb6+ c5 Rd1 h1Q Qc6 Qhe1 Rc1 Qef2 Rh1 Qh4 Nab3 Qa4 Na5 Bd4+ Ka7 Qdd6 Ra8 Qb4 b8Q Ba6 Qbc8 Qbb3 Rb8 Qdd7+ Rb7 Bb5 Be4 Be2 Bed3 Qb6+ Kb8 Qbc7+ Ka7 Qb8+
QN2rr2/1N2pr2/q1RPPb2/pk3n2/rB2Rq2/1Nr1R1Q1/7K/B1qB3n w - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 f5 h3 fxg4 Na3 g3 Nb1 g2 Nc3 g5 Nb1 g4 Ra2 g3 Ra1 Bg4 hxg4 Qd5 Qc2 Qd4 Qd1 Qd8 d4 Kd7 e4 c5 b4 h5 f4 a5 e5 c3 e6+ Kc7 g5 Kb6 g6 h4 d5 c4 g7 c2 d6 h3 f5 h2 f6 c3 f7 Nf6 g8R Rh6 Nh3 g1R Nd2 g2 Kf2 Na6 Kg3 Qc7 Qe1 Qb7 Rg4 Nb8 Re4 Qd7 Be2 Rf1 Nf4 Ng4 Nd3 Rh4 Bd1 Bg7 f8B Rf7 Nc5 Qa7 Ra3 Nc6 Nb7 Re8 Nb3 Bf6 Bg7 Nd4 Bd2 c1Q Rf1 h1R Rf5 c2 Rc5 Qa6 Rc6+ Ka7 Qg1 Nf2 b6+ Ka8 Qe1 Rf1 b5 Rf4 Kh2 g1R Bc3 Nh1 Qg3 Nf5 Bb4 R4f3 Bh8 Qf4 Bg7 c1Q Bh8 Bh4 Ba1 Kb8 N3c5 Bf6 Rae3 Ka8 Nb3 Rff8 Nd8 Rf7 b7+ Ka7 b8N Rff8 Nb7 Rf7 Re2 Rc3 R2e3 Rg2+ Kh3 Ra2 b6+ Ka8 N3c5 Raa3 Nb3 Ra4 Kh2 Rff8 Nd8 Rf7 b7+ Ka7 Nd7 Qb6 b8Q+ Ka6 Nb7 Kb5 Qc8 Qa6 Qa8 Rd3 Rc2 Rc3 Nb8 Rcc8 Rc6 Rf3 Re1 Rc3 R1e2 Ref8 R2e3 Rce8
k1N1Bb2/N1R1p2B/p3qb2/4P2Q/q1Q1K3/2bPBbq1/b5RR/r2Nn2r w - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 axb5 dxc4 h3 f5 Ra3 Nd7 Ra4 Ndf6 Ra3 fxg4 Ra1 g3 h4 g4 Ra2 Ne4 Ra1 Ng5 hxg5 Qd7 Nh3 Qd6 Ng1 Qd8 e4 Kd7 Ke2 c5 Ke3 Kc7 b4 Kb8 f4 h5 f5 g2 f6 g3 f7 h4 b6 c3 e5 c2 b5 h3 b7 c4 g6 c3 g7 h2 Nh3 g1Q+ Nf2 g2 Na3 Qd6 Qh5 Qh6+ Ke4 Qe6 Nc4 Nh6 g8B Nf5 Nd1 Nd4 Nd6 Nf3 Bh7 Ne1 Ra2 Qb6 d3 g1Q Bg2 Qa6 Be3 c1B Rf2 Bd7 Nc8 c2 Bf3 Bb2 Rg2 c1B Be2 Bh6 f8Q Bc3 Qf4 Bf8 Bg4 B1d2 Bgf5 Qf2 Bfg6 Qg3 Be8 Qa1 Qf2 Bc1 Qc2 B1d2 Qb3 Qa4+ Qc4 Bc1 Rf1 h1B Rf2 Nf3 Rh2 Ne1+ Rfg2 B1d2 Bd4 Bg5 Bc5 Kc7 b8N Kb7 b6 Bf6 Be3 Bb5 Nc6 Ba6 Qd4 Bc4 Qc5 Ba2+ Qc4 a6 N6a7 Rb8 Bg5 Ka8 Bd2 Rb7 Be3 Rc7 b7+ Kb8 Bd2 Rc5 Bf4 Rb5 Bh6 Rb1 Be3 Ra1 Qh3 Rg8 Qh5 Nf3 Rc2 Qf2 Bb6 Rg1 Be3 Qg3 Rcd2 Bg2 Rf2 Rh1 Rd2 Bh3 Rdg2 Bg4 Qd4 Kc7 b8R Ne1 Rb6 Be2 Rc6+ Kb7 Qc4 Ka8 Rc7 Bf3+
3QN1q1/6R1/kpbb3n/1r5B/1P2Pqq1/BNq1B3/1RpK1R1r/1r1Q1q1Q w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 Nd7 a6 b6 Rh2 Nc5 Rh1 Nb7 axb7 Qf6 Nc3 Qd6 Nb1 Qd8 b8B Kd7 g4 f5 e4 a5 d4 c5 b4 h5 d6 Kc6 d7 Kb7 d5 a4 d6 h3 g5 f3 g6 a3 g7 a2 Be3 h4 Bf4 h2 Kd2 f2 Qa4 c4 Bg5 f4 Nf3 h3 Nh4 f3 Be2 f1Q Qd1 f2 Nf5 Ka6 Bh5 Nh6 g8R Bb7 Ng7 Bc6 Be3 Be7 Rg1 h1Q Rg2 h2 Ne8 Qhg1 R8g7 h1R Qc1 Qc8 d8Q Qg4 d7 Bd6 Qd1 Rh2 Qh4 Rg8 d8Q c3+ Kc2 Rf8 Nd2 Rf5 Nb3 Rb5 Rb1 a1Q Rb2 Qa3 Kc1 c2 Kd2 Ra7 Rg3 Qgg2 Rf3 Q2g3 Rf5 Qfg1 Rf8 f1Q+ Rf2 Q3f4 Qh3 Rd7 Qg2 Rf7 Qh1 Rff5 Rh7 Qg8 Rg7 Qgg4 Bc7 Bf8 Be5 Bd6 Rb1 Rg5 Bb2 Qa1 Ba3 Qc3+ Kc1 Rgd5 Rb2 Rd2 Qg2 Re2 Qg1 Re1 Qh1 Qcf6 Kd2 Q6e5 Qdf3 Rb1 Qd1 Qc3+
R4nNn/1n1NN1n1/1q2pqrB/3B1P2/1k2B3/Rb2P1Q1/nRqp2r1/K4Q2 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Rh3 Bh6 Rh1 fxg4 Bf4 g3 Be3 g4 Bc1 Bg5 hxg5 Kf8 Rh6 Kf7 Rh1 Ke8 Kd2 d5 f4 Kd7 c4 Kd6 Kc2 Kc5 g6 h5 b3 a5 Kb2 a4 f5 h4 g7 d3 b6 a3+ Ka2 h3 b7 g2 Nd2 h2 Ngf3 g1Q Bg2 d4 Kb1 a2+ Kb2 g3 Ne1 Be6 Nf1 d2 Bd5 g2 Nf3 d3 Ne5 Kb4 c5 Ra6 c6 Qc5 c7 g1Q c8B Nh6 g8N Nf7 Ng4 Nd7 Ne5 Nf8 b8R+ Rb6 Rb1 a1N Nd7 Rh5 Be4 Nh8 Ra8 Rg5 Bcb7 Rg2 Ne3 Bd5 Ra3 Rbg6 Qf1 d1N+ Ka2 e6 Rb2 Bc4 Bbd5 Qf6 Kb1 Qf2 Rg1 h1N Bd2+ Kb5 b4 Nb3 Bc1 Na5 Ka1 Ng3 Rh1 Nf7 Rh8 Qb6 Bd2 Bb3 Bc1 Nh5 Bd2 Ka6 b5+ Ka7 Bc1 Nc3 Bd2 Ng7 Bc1 Qc6 b6+ Ka6 b7 Kb5 b8Q+ Nb7 Qg3 Qa6 Nd1 Qaa7 Bh6 Qab6 e3 Na2 Nc3+ Kb4 Nb5 d2 Na7 Qf4 Nc8 Qfc7 Nce7 Qc2 Rh7 Ne8 Rg7 Nh8 Rf7 Nh7 Rf8 Ng7 Rfa8 Nf8
1kb1rK1N/r3p2R/1b5p/2B1N2P/nq2bP2/2q2NrB/q2Q1Rr1/Q4RQ1 w - - 0 1 illegal: No possible last move, all moves rejected
nQN1nb1n/4PqN1/b3pb1k/Q3n1p1/1R2N1Pq/2BBRq1r/1K6/3Q2R1 w - - 0 1 illegal: No proof kernel
1r1r1R2/1qbn1QNb/PB4qB/Q1R1rp2/3N1P1R/bp1Q3K/Bk2r1q1/8 w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 h4 gxh4 e4 Bf5 e5 Bc8 d6 Bh6 d5 Kf8 e6 Kg7 Bc4 Kf6 Bf1 Nd7 exd7 Bf8 g4 Ke5 a4 b5 a5 h5 a6 c5 g5 h3 f3 b3 Kf2 h4 g6 h2 Kg2 b2 g7 h3+ Kg3 b4 Na3 b1Q Bg5 c4 Kg4 c3 Qc2 Kd4 f4 e5 Qc1 c2 Bb5 Kc3 Qe1+ Kb2 Qd2 e4 Bh6 e3 Nf3 e2 Bc4 e1R Ba2 b3 Nh4 Re5 Qd3 c1B Nf5 Qc7 d8R Qb7 d7 Rb8 Nc2 Bd6 Rf8 Bc7 d8B Nf6+ Kg3 Re2 g8Q Nd7 d6 f6 Qf7 Re5 Rg1 h1R Ng7 Rh2 Nd4 Rhe2 Rh1 h2 Kh3 Qc2 Qd1 Qg6 Qd3 Bd2 Rag1 Bb4 Rc1 Ba3 Rc5 f5 Rf1 Rg8 Rf2 h1Q+ Rh2 Qhe4 Rh1 Nb6 Rh2 Be6 d7 Qec6 Bh4 Bc4 d8Q Nd7 Be1 Qe4 Ba5 Bd5 Bb6 Rh8 Qfe8 Bg8 Qf7 Qh1 Qh4 Qhe4 Qe1 Bh7 Qa5 Qeg2+ Kh4 Q6c6 Rc8 Qgd5 Kg3 Rhe8 Rh4 Qg6+ Kh3 Rf8 Re8 Qe4 Re7 Rfd8 Re8 Qec6 Rf8 Qcg2#
q3K3/1B1rRP1n/1Q2q3/2Qp2Q1/qn1P2pb/k1r1B2N/1RqrBn2/2R1N3 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 hxg4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Ba3 b4 Bc1 Bb5 cxb5 Rh7 Bb2 Rh3 Bc1 Rh8 Ke2 e5 Kd3 Ke7 Ke4 Kd6 h4 Kc5 f4 g5 a4 b2 h5 g3 f6 d5+ Kf5 g2 Ke6 b3 Kf7 Kb4 d4 c5 f5 e4 h6 c4 h7 g4 a5 c3 b6 e3 a6 e2 a7 e1Q b7 c2 Be3 c1R Be2 Nc6 Na3 b1Q Ra2 b2 Qd2+ Rc3 Nh3 g1N b8Q+ Ka4 Qc7 Qbd1 Qb6 b1Q Rb2 Be7 Nc2 Nb4 Qc1 Rac8 a8B R8c7 Bb7 Qa8 Qd2 Bd8+ Ke8 Rd7 f7 Qa1 f8Q Bh4+ Qd8 Qab1 f6 Qbc1 f7 Qa1 Nf4 Nh3 Qc5 Nf2 Qc1 Qd3 Nh3 Qf5 Qb6 Qd2 Ne1 Ka3 Qc2 Qa4 Qe7 Qe6 Qf5 Qdc2 Qg5 Qeg6 Qec5 Qgc6 Ng2 Qd6 Rc1 Qe6+ Kf8 Qa2 Ne1 Nf6+ Kg7 Ra8 h8R Rb8 Re8 Nh7 Re7 Rc8 Qca5 R8c4 Qac5 Rd3 Kg8 Rd2 Kg7 Rc3 Kg8 Nf6+ Kf8 Nh7+ Ke8 Qa8+ Qd8 Qab3 Qb8 Qba4 Qd8 Q8a7 Qdb6 Qa8+
3B2Bk/5P1q/2N4r/1qn1R3/n1Kpq2N/prBP2n1/r2bRQ1Q/Nn5R w - - 0 1 legal: proof: b4 f5 c4 g5 e4 fxe4 a4 b5 axb5 d6 h4 gxh4 c5 Qd7 c6 Ba6 b6 Bb7 cxb7 Qc8 b5 Qd8 Ke2 Kf7 f4 Kg7 g4 e5 d3 h5 f5 a5 g5 c5 g6 e3 Rh3 d5 Nc3 e4 Qc2 d4 Rf3 h3 Qb3 a4 Rf4 c4 Nd5 h4 Qc2 c3 Nf3 h2 Bg2 h1Q Bd2 h3 Nb4 h2 Nh4 Rh6 f6+ Kh8 Rf2 Na6 b8N Nc5 b7 Qa5 b6 Qb5 N8c6 Ne7 b8Q Nd5 b7 Nb6 Qd6 a3 b8B Nba4 Bc7 Rb8 Bd8 Be7 Qb2 c2 Bc3 c1R Nc2 Rb1 Qa2 Rb3 f7 Bg5 g7+ Kh7 g8R Rb6 Rg6 Kh8 Rg1 Rb8 Ke1 e2 Na1 Bc1 Rf5 Bd2+ Kf2 e1N Re5 Rc8 Rge6 e3+ Ke2 Rb8 Be4 Nf3 Kd1 e2+ Kc2 e1Q Bh7 Qe4 Bg8 Qh7 Rb1 Qg2 Re2 h1N Qh2 Ng3 R6e5 Qh1 Qb2 Qe4 Qf2 Qh3 Rh1 Qhf5 Qb1 Qh7 Qbg1 Rb2+ Kd1 Ra2 Qgh2 Be1 Kc1 Nd2 Kd1 Nb1 Kc1 Nb2 Kc2 Bd2 Qf3 Qa5 Qff2 Nba4+ Bb2 Nb7 Kb3 Nbc5+ Kc4 Rb3 Bc3 Qb5#
4Kb1q/2p1b1BR/k1P2p2/n4qqQ/P2r1Qr1/r4BNR/1B1R1q2/1N1b3N w - - 0 1 legal: proof: d4 h5 b4 e5 dxe5 a5 e4 axb4 f4 Ke7 g4 hxg4 e6 Nc6 f5 Nd4 f6+ Kd6 e5+ Kc6 Qd3 Nf5 Qd1 Nfe7 fxe7 Kb6 Kf2 Kc5 Ke1 Kc6 Ke2 Kb6 Ke3 g5 Ke4 d5+ Kf5 g3 e8Q d4 c4 d3 h4 d2 h5 f6 Kg6 g4 Kf7 b3 e7 b2 e6 g2 h6 g3 h7 Ka6 c5+ b5 Ne2 g1B Rh3 b4 Bg2 b3 Bf3 g2 Qf1 d1R Ng3+ Rd3 Qf2 Rd4 Nh1 Bh2 a3 g1Q Ra2 Bd6 a4 Qg5 Qd2 Rb8 Qf4 Rbb4 Nc3 b1Q Bb2 Qbg1 Nb1 Qf2 Qb5+ Ka7 e8N Ne7 Ng7 Nc6 e7 Bg4 e8R Bde7 Nf5 Na5 c6 Qb8 Qbe5 Ka6 Nfg3 Rg8 h8B Qd8 Bd5 Bd1 Bf3 Rbc4 Bg7 Rc3 Qef5 Qa8 Qg6 Rcd3 Qh5 Qc8 Ba3 b2 Rd8 Qcf5 Rd7 Qh7 Ke8 Qh8 Nc3 b1Q Rd2 Re3 Bb2 Qbf5 Nb1 Ra3 Bh6 Bb4 Rh7 Bbe7 Bg7 Qh4 Bh6 Rg4 Bg7 Qhg5
7k/3rn2r/QB1BQKQP/1R2r1pp/2Rq1qB1/3qn2P/4nNb1/N2R2r1 w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 a4 cxd4 g5 b5 axb5 h5 Bh3 g6 Bf1 Bh6 gxh6 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Kf8 Kf3 a5 Ke4 f5+ Ke5 d5 e4 a4 b4 g5 c4 a3 c5 a2 c6 d3 c7 d2 b6 f3 b5 f4 b7 d4 b6 d3 Na3 f2 Be2 f1R Qa4 d1N Nc2 f3 Be3 f2 Nh3 d2 Rc1 a1R Qa6 Bg4 c8Q Ne7 Kf6 Kg8 e5 Bf3 e6 Nbc6 b8B Re1 b7 f1Q Bb6 Ra7 Nf2 Bg2 h3 Rh7 Bd6 Nd4 b8R Rd7 Bg4 Kh8 Qc6 Ra5 Na1 Ne3 Rc4 d1Q Qe4 Rc5 Qg6 Qdd3 Rb7 Rb1 Rb8 Qc1 Rd1 Ne2 Rb7 Re5 Rb8 Nc8+ e7 Qcd2 Rb7 Qd4 Rb8 Q2d3 Rb7 Qg8 e8Q Ne7 Qef7 Qb8 Qe6 Rc1 Ba5 Qc7 Rb5 Qb8 Bb6 Qc7 Rd2 Rg1 Rd1 Qc6 Ra5 Qce4 Rb5 Qf4+
1N1B2B1/2R1Q2Q/1r5r/R3p1Q1/qNBqpnn1/6b1/2r1PqnP/2R1nk1K w - - 0 1 illegal: No proof kernel
Q4Kq1/R3r3/1r3B2/Bk1P1nqb/1p1Qpb1q/r5NQ/2b1P1BN/1N4rR w - - 0 1 legal: proof: g4 a5 c4 g5 b4 axb4 h4 d5 cxd5 f5 Rh3 Nd7 Rh2 Ne5 Rh1 Nf7 Rh3 fxg4 Rh1 g3 Bb2 g4 Bc1 Ng5 hxg5 Ra3 Qc2 Ra5 Qd1 Ra8 d4 Kd7 Kd2 e5 Ke3 h5 Ke4 c5 Kf5 b5 Kg6 b3 Kf7 e4 a4 h4 f4 b4 d6 Kc6 d7 g2 f5 h3 g6 h2 g7 g3 a5 c4 a6 c3 a7 c2 d5+ Kb5 f6 b2 Qd4 Bd6 Ra6 Rh7 Bd2 c1Q Bc3 Ne7 Nf3 g1R Bg2 Nf5 Ra3 Rh6 g8N Qg5 Ne7 Bf4 Ra6 Qh8 d8B Bd7 Ba5 Be8+ Ke6 Bg6 f7 Qg8 Kd7 Qh4 f8Q Bh5 Qc8 Qgg5 Qch8 Rb6 Qh7 Re8 a8Q Qg8 Ra7 Qgg5 Nbd2 b1B Qh6 Bc2 Nb1 Rg8 Qhh8 Rg7 Bb2 Rf7 Ke8 Rg7+ Kf8 Rh7 Nbd2 Ra1 Nb1 Ra3 Rf1 h1Q Nh2 Qg1 Bc3 Ne3 Nf5 Re7 Rc1 Qf2 Rh1 Qg1 Bf3 g2 Ng3 Nf5 Bb2 Qf2 Ba1 g1R Bg2 Bf7 Qh5 Qf1 Qg4 Bh5 Qh3 Qd1 Qe3 Qc1 Bf6 Qb2 Qd2 Qe5 Qc3 Qe6 Qd4 Qeg8#
2n4N/nn1q1Npk/R3bb2/2R2b1n/2B1p1QB/q1r1Q1q1/1NKPPB2/7Q w - - 0 1 legal: proof: f4 d5 c4 dxc4 g4 e5 a4 h5 Qc2 hxg4 Qe4 b5 axb5 a5 Qc2 e4 Qb3 Rh5 Qd1 Re5 fxe5 Ra6 Bh3 Rh6 Bf1 Rh8 h4 f5 b4 Kf7 e6+ Kg6 e7 c5 e8Q+ Kh7 h5 a4 b6 g3 b7 f4 b5 g2 b6 f3 h6 a3 Rh4 a2 Nh3 g1Q Qe5 c3 Qh2 c2 Qg3 c4 Rh5 c3 Na3 Nc6 b8B Qd7 b7 Be7 Nc4 Na7 Rc5 Bf6 Ba3 c1N Qg4 c2 Nb2 Nb3 Bg3 c1N b8Q Na5 Qbb3 Nb7 Qe3 Ne7 Bf2 Qg3 Bb4 Re8 Ba5 Rg8 Bd8 Rf8 Qc2 Rg8 Kd1 Nd3 Qc1 Nf4 Kc2 Nh5 Bg2 Rf8 Qh1 Rf7 Rc1 a1Q Ng5+ Kg8 Rg1 Qa3 Ra1 Rf8 Nf7 Kh7 Bh3 Re8 Be1 f2 Ra2 f1B Bf2 Qdd6 Ra1 Bf5 Ra2 Nec8 Be7 Be5 Bh4 Qd7 Ra1 Re6 Ra2 Rc6 Ra1 Kg8 Ra2 Bf6 h7+ Kf8 h8N Kg8 Ra1 Kh7 Ra2 Qb4 Ra6 Qa3 Qgf4 Bg2 Bg4 Bh3 Qg5 Bg6 Be6 Bgf5 Bc4 Be6 Qgf4 Bhf5 Qg4 Rd6 Qhf3 Rd3 Qh1 Rc3+
3kr1K1/Q7/bn1rR3/RrpP4/4R3/Nq1BpN1N/2Pn1q2/nq1BBQ1n w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 f5 Rh3 Bh6 Rh2 fxg4 Rh1 g3 Rh2 g4 Rh1 Bg5 hxg5 Qd4 Rh2 Qd6 Rh1 Qd8 Ke2 e5 Ke3 c5 b4 h5 f4 a5 d4 h4 b6 h3 f5 a4 g6 g2 d5 h2 g7 g3 f6 a3 f7+ Kd7 f8N+ Ke8 b5 a2 b7 Bg4 b6 Ra6 Be2 Nf6 g8B Nbd7 Ne6 Qb8 Nf4 Kd8 Nf3 g1R Qf1 g2 Bd2 Rh7 Bb4 Re7 Na3 Bh5 Re1 a1N Bd1 Ra5 Bf7 Rb5 Nh3 Bg4 Bg6 Be6 Ke2 e3 Kd3 e2 Ke3 Bg4 Bd3 e4 Bd2 Qg3 Bb4 Qf2+ Kf4 e3 Kg5 Be6 Kg6 Ne4 Bc3 Nd2 Kh6 Nf8 b8Q+ Bc8 b7 Nd7 Qa7 Nb6 b8R Qh4+ Kg6 Qc4 Rb7 Qb3 Rc7 Ba6 Rc6 Qb2 Re6 Qb3 Qf2 Rf1 Qg1 Rf2 Qf1 g1Q+ Kh6 Qg3 Rg1 Qb8 Rg4 h1N Rge4 Rg2 Ba5 Rgg7 Bb4 Rd7 Ba5 Rd6 Bb4 Re7 Kg6 Re8 Kf7 Re7+ Kg8 Qb7 Qf2 Qb8 Rg1 e1Q Qf1 Qf2 Bc3 Nb1 Be1 Nd2 Rgg4 Qb7 Ra4 Qb1 Rge4 Rb4 Nfg5 Qc6 B1e2 Qb5 Nf3 Qc4 Ra5 Rb5 Bd1 Qc3 Nhg5 Qcb3 Nh3 Re8+
q1RQ1B2/pN1b2q1/5Nr1/2R1PB1q/PQ1b1Q1n/4qN2/rp2r1k1/3KB2b w - - 0 1 legal: proof: f4 c5 h4 g5 e4 gxh4 b4 e5 bxc5 d5 Bb2 Nd7 Ba3 dxe4 Bc1 e3 Ke2 e4 Ke1 Ne5 fxe5 Bg7 Qe2 Bh6 Qd1 Bf8 d4 Ke7 g4 Ke6 c4 f5 a4 b5 g5 h5 g6 h3 g7 b4 c6 e2 c7 h2 c5 Kd5 c6 f4 Qd2 b3 Ba3 f3 Bc1 h4 Qb2 h3 Bh6 Bd7 c8N Ne7 c7 Nf5 Nd2 Nh4 Rc1 Bc5 Nd6 Qf6 Rc4 Rag8 c8Q Qd8 Qa6 Qa8 Nb7 Bb6 Rc8 Rh7 Kf2 e1R Bd3 Re2+ Kf1 e3 Ne4 f2 Nf3 Bc5 Qf6 Rhh8 Rg1 h1B Qf4 h2 Rg6 Rh7 Rgc6 Rhh8 Qb1 Ra2 Qe1 b2 Ke2 f1Q+ Kd1 Qg2 Qb4 e2+ Kc2 Re8 g8Q+ Re6 Qd8 Rg6 Bf8 Qg3 Kd2 e1Q+ Kc2 Qe3 Kd1 Qg5 Bb1 Qf6 R6c7 Qg7 Nf6+ Ke6 Be4 Rh5 Bb1 Rhg5 Bc2 Rg2 Be4 Re2 d5+ Kf7 d6 Ke6 Rc6 Bd4 Rc5 Rgg2 Bh7 Rg6 Qg3 Kf5 Qf2 Bc6 d7 Kf4 Qf1 Rg1 Bf5 Kg3 Qe8 Rgg2 d8B Bd7 Ba5 Rg1 Qd8 Rgg2 Bb1 Kh3 Qf2 Rg6 Bc2 Qg5 Qe3 Kg2 Bf5 Qf4 Qe4 Qe3 Qf4 Qf7 Bc7 Qg7 Bd3 Nf5 Qc4 Kh3 Qc3 Bg2 Ba5 h1Q+ Qe1 Qh2 Qc3 Bh1 Qc4 Kg2 Be1 Qh3 Qb4 Qh5 Be4 Nh4 Bb1 Bb5 Bf5 Bd7
Q1b3N1/8/n1Q2B1n/2p1Rn1p/n5Pq/b3R2B/QnPRK2q/1B1Nn1kr w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 Ra6 e5 Rg6 h4 Rg5 e6 dxe6 hxg5 e5 Kf2 e4 Ke2 Nd7 Ke1 Nb8 d4 Kd7 b4 Kd6 d5 Ke5 g6 f5 d6 a4 g7 e3 d7 Ke4 b6 e5 b5 f3 b7 f2+ Ke2 a3 b6 f4 Rh3 a2 Qe1 f3+ Kd1 e2+ Kd2 Nh6 g8B Ba3 Bb2 Qh4 d8R Na6 b8Q c5 Qc1 e1N b7 Nd3 Nc3+ Kf4 Qa7 e4 Rb1 a1Q Ba2 e3+ Kd1 Rf8 Rd7 Rh8 Nd5+ Ke4 b8Q e2+ Kd2 e1N Bf6 Qe5 Qba8 Nb2 Ne2 Na4 Nec3+ Kd4 Bg2 f1N+ Kd1 f2 Re3 Ng3 Bh3 Ngf5 Ke2 f1N Nd1 Nd2 Ne7+ Nd6 Qc7 Nc4 Ng8 Ncb2 Re7 Ndf5 Qcc6 Be6 Ra1 Bd7 Qb1 Bc8 Bg5 Qeg3 R7e5 Qg1 Bf6 Qh2+ Nf2 Nbd3 Qb3 Ndb2 Rd1+ Ned3 Rf3 Nf7 Rd2 Qg5 Nh6 Re8 Bb1 Qh4 Ng8 h5 Kf1 N7h6 Nd1 Re7 Rd5+ Ke4 Re3+ Kf4 Ree2 Kg3 Qc4 Re4 Re5 Rf4+ Nf2 Ne1 Qa2 Rf3 R2e4 Rf4 Ke2 Rf3 Bg2 Rf4 Nd1 Rf1 Qb8 Rh1 Qba8 Q2h3 Bf1 Kh2 Re3 Kg1 Bg2 Q3g3 Bh3 Qh2+
4NK2/1npR2pb/1Q4nb/4P1R1/Bn4bQ/rnB1Q1b1/2kNR1P1/q3b2N w - - 0 1 illegal: No proof kernel
1NQ3n1/rR1B1Kbp/p1NBB2P/R3q1r1/4b3/2Q2qr1/2Rr2P1/1Qb2bk1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 f4 gxf4 Ke2 Nd7 Kf2 Ndf6 Ke2 cxd4 Ke1 d3 Kd2 d4 Ke1 Nd5 exd5 Bg4 Nf3 Bh3 Ng1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 c4 a6 b4+ Kb6 h4 e6 h5 f3 c5+ Ka7 c6 Kb6 d6 f2 d7 d2 c7 d3 h6 f4 Nf3 Bb7 c8B Ra7 Ra5 Bd5 Qe1 d1R Nbd2 Qe7 Nb3 d2 Nbd4 Be4 Bc4 f1Q Nc6 Qe8 Nfd4 f3 d8R f2 Bd7 Bg7+ Kd6 e5 Rc8 Qe2 Ba3 f1B Nb8 Qf3 Ndc6 Ra1 Bd5 d1R Qc3 Rd2 Rc7 Qeh5 Ke6 Rb1 Rh4 Rb3 Rf4 Qg5 Rf7 Qf2 Qf3 Re2 Nd4 Nf6 Bc8 Bd3 Rc2 e4 Bc6 Rf8 Nd7+ Kc7 Qh3 e3 Re7 Ng8 Qf3 Rd8 Kf7 Kd6 b6 Be4 b7 Qgg3 Bb5 Kd5 b8Q Rc3 Ba4+ Kc4 b5 Kd3 b6 Qc7 Nf6 Rd5 b7 Rg5 Be6 Qe5 Qc8 Qfg3 b8Q Rf2 Qh5 e2 Bd6 Ke3 Qh3 e1B Qb1 Bd2 Rb7 Bc1 Be8 Ra3 Nc6 Rd2 Nd7 Kf2 Ndb8 Kg1 B8d7 Qg4 Qhb3 Qe2 Qc4 Rag3 Qc3 Qf3+
3qn3/4BQRp/1nq5/1RN1N1qP/n1q1p2Q/2nP3R/2rkb2Q/K1NB1r2 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e6 e4 Bd6 f5 Bf4 g3 f6 e5 fxe5 gxf4 e4 h4 Ke7 b4 Kf6 d3 c5 Kd2 a5 Kc3 g5 Kb2 c3+ Ka2 g4 h5 g3 b6 e3 b7 c2 b5 a4 b6 a3 Nh3 c4 Nf2 c3 Bh3 g2 Rf1 g1N Bd2 c1Q Bg4 c2 Qe1 e5 Bb4 e2 Nc3 Nd7 b8R e4 b7 Nb6 Rb1 Ra4 Ka1 a2 Ra8 Qe3 b8Q c1Q Ra7 Qc5 Rd7 Qc6 Rg7 Qe3 Bf8 Rc4 Rb5 Qg3 Bf3 Qg5 Bg4 Nh3 Rh1 Ng1 Rh3 Be6 Qb1 e1Q Ne2 Rc2 Nc1 Qb4 Bd1 Qbc4 Qb4 Ne2 Qe1 Nc3 Qh1 Qb7 Qh2 Qbc7 Qg3 Q7c6 Qh4 Ne7 Qc7 Nec8 Bd6 Rf8 Ba3 Bf7 Qb8 Nd6 Ng4+ Ke7 f6+ Ke6 Bc5 Kd5 f5 Be6 f7 Ne8 Be7+ Kd4 f6 Bf5 Ne5 Bg4 Qc7 Bf3 Qb8 Ke3 Qd6 Kd2 Qb8 Rg8 f8N Be2 Ne6 Rf8 f7 Rh8 f8Q Rg8 Qf1 Rf8 Qg2 Rf1 Qa7 Qg3 Nc5 Nb1 Bf8 Qgg5 Qf7 Rc3 Kb2 a1N Na6 Nb3 Be7 Nc5 Qh2 Nca4+ Ka1 Rc2 Nc5 Nbc3
1kb3r1/rr2nR2/3pq3/B1n2P2/1p2NRQ1/2qPRQBr/1n4NQ/3K1n1B w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b3 a4 c5 Bg7 Bd3 Bc3 Bf1 Ba5 Be2 b5 Bf1 Bb6 cxb6 axb3 g4 e5 a4 h5 f4 c5 g5 h3 a5 h2 g6 c4 f6 e4 b7 h4 f5 d6 f7+ Kd7 f8R Kc7 g7 h3 a6 b2 a7 c3 Qg4 c2 Nc3 b1R Rf7+ Qd7 Nge2 e3 Bg2 Na6 Nf4 e2 Ra4 Nc5 Ne4 Ne7 g8Q Qe6 Qh7 Rg8 b8B+ Kb7 Rf1 h1N Rf3 h2 Bc7 Ng3 Bh1 Nf1 Re3 Rb3 Bb2 c1N Be5 Rb2 Ba5 Rb4 Bf3 h1R Ng2 Rh3 Bg3 Rb2 Nf4 Rb3 Bh1 Rb1 Ng2 Rb2 Kf2 e1Q+ Kf3 N1d3 Qh8 Qa1 Ke2 Qa3 Kd1 Qc3 Rd4 b4 Qh6 Rb8 Qhf4 Ra2 Qff3 Ne5 d3 Nc4 Qf2 Ka8 Qg1 Rb6 Qh2 Kb7 a8Q+ Kc7 Qc6+ Kb8 Nf6 Rb5 Rf4 Rb7 Qcf3 Ra3 Ne4 Ra2 Bb6 Raa7 Ba5 Nb2+
4r2K/n1Q3P1/3bbR2/4kbp1/2pbN1P1/BnQQ2n1/1NR1B2N/1B2rn1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 h5 dxc4 Nf3 Qf6 Ng1 Qg6 hxg6 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 g4 a5 d4 h5 b4 f3 d5 a4 g7 h4 b6 c3 b7 c4 b5 c2 b6 h3 Qe1 a3 Nc3 f2 Nd1 h2 Nf3 f6 Nb2 a2 Qc3 Nc6 b8Q+ Kc5 b7 Nce7 d6 Rh6 d7 Rh8 d8Q Nf5 Qdd3 Nge7 Qc7+ Nc6 b8N Bd6 e3 Rh7 Be2 Be6 Rf1 h1R Nh2 Rh8 Rb1 Re8 Ra1 Re7 Rb1 a1B Nd7+ Kb5 Nc5 Rae8 Qe5 Na7 Qec3 Bd7+ Kd5 Ng3 e4 f5 e5 f4 e6 f3 Ne4 Bc8 Rd1 f1N Rd2 Bc5 Ke5 f2 Kf6 Bd6 Kg6 Bd7 Kh7 Bc8 Qd8 Kc6 Qda5 Rb7 e7 Be6 Qd8 Rb5 Qb8 Rd5 Qd8 Rd4 Qc7+ Kd5 Qb7+ Ke5 Qc7 Rc8 e8B Rb8 Bg6 Re8 Na4 Bb2 Bf5 Ba1 Bb2 c1N Rc2 Nb3 Ba3 Bb2 Qe1 Bc3 Nb2 Rd5 Ra1 Bd4 Qec3 Rc5 Bb4 Rd5 Ra6 Ra5 Rb6 Ra1 Ba3 Re1 Rb8 Re7 Rf8 Re8 Rf7 Ne3 Rf8 f1B Rf6 Bg2 Bg6 Nef1 Bf5 Re7 Kh8 Bf3 Nf2 Be4 Bg6 B4f5 Ne4 Re8+ Rf8 Bf7 Qf3 Nc8 Nf6 Rc1 Rd2 Bd7 Bb1 Na7 Rc2 Bd5 Qfd3 Bf5 Ne4 Bg8 Rf7 Re1 Rf6 Bge6+
1n5r/pk3N1p/3nQr1R/b1B1Rb2/bb2PRB1/1n2KQ1Q/P1B4r/1nN5 w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 f3 e5 Nc3 e3 Nb1 Qd4 Ke2 Qf4 Kd3 e2 Kc3 e4 Nh3 e3 Ng1 Qe4 fxe4 Ke7 Kb3 Kd8 Kc3 Ke8 Kd3 Kd7 c4 Kc7 g4 e1B c6 f5 c5 b5 g5 e2 g6 f4 g7 f3 Nh3 f2 Nc3 b4 Ng5 b3 Ba3 b2 Ke3 b1N d4 h3 d5 h2 d6+ Kd8 d7 Kc7 d8R Bd6 Nf7 Bb7 Re8 Ba6 Re5 Nf6 g8Q Bc8 Qe8 Bf5 Qe6 Ne8 Qd3 Nd7 Bb4 Kc8 c7 Kb7 Ba3 Nb8 c8B+ Kc6 Bd7+ Kb7 Ba4 Bf8 Bh3 f1B Bc2 Nd6 Bg4 Bh3 Rf1 h1R Rf4 Rh2 Qd1 Be7 Bb4 Bd8 Ba3 Ba5 c6+ Ka6 c7 Kb7 Bc5 Bd2+ Kd4 e1N Qf3 Nd3 Ne2 Bdb4 Nc1 Bf1 Ke3 Be2 Qh6 Bd1 Qhh3 Rf8 Bd4 Nc5 c8Q+ Kb6 Qe8 Kb7 Qe6 Nb3 Bb6 Be2 Bd4 Bb5 Bc5 Ba4 Ne2 Nc3 Rh1 Nb1 Nc1 Bb6 Ng5 Rf6 Nf7 B6a5 Qhf1 Rg2 Rh6 Rh2 Q1g2 Nc6 Qgf1 Rh8 Q1h3 Nb8
2qB4/1Qn4N/rQ2QR1p/1P1Bb3/RB1N2n1/1r1n1pP1/bk1NKbp1/r7 w - - 0 1 illegal: No possible last move, all moves rejected
3n1Q2/2N5/3rRQpb/1p2rbNB/1qRP2r1/2B1bR2/1n1pP2k/nQN1K3 w - - 0 1 illegal: No possible last move, all moves rejected
N4n2/Qb1n4/r1pr3B/pQ2bQ1P/1NP1RRR1/2kn2B1/qNb2r1p/2K5 w - - 0 1 illegal: No proof kernel
5r1K/BnNq1BPp/1b2bpQ1/1p1N4/2knR1r1/P3n1NR/1r1b1QB1/7R w - - 0 1 illegal: No possible last move, all moves rejected
6rk/R1N1p3/Q1KB2p1/3n1Rnr/3qbn1N/B1PpR1b1/P1B3rb/1Q1Q4 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Ke3 b5 Kd4 d5 f4 g6 h4 Kg7 h5 g3 h6+ Kh7 c6 b3 Kc5 d4 c7 b4 f6 b2 c3 g2 f7 b3 f5 Qe8 f6 Qd7 Rh5 Nc6 Nf3 g1B Na3 b1N Bd3 b2 Nh4 Nd8 Nb5 Bb7 c8Q Be4 Nc7 Bg7 f8R Bh2 f7 Nd2 Rf5 b1R Ba3 Rb2 Bc2 d3 Qa6 Nf6 Rg8 Rab8 f8Q Nf3 Qf7 Rc8 Qb3 Ne6+ Kb6 Nf4 Rd8 Qd5 Rd7 Ng5 Qbb5 Kg8 h7+ Kf7 Qb4 Qd4+ Kb5 Rhg8 h8B Bh6 Bg7 Rh8 Rb1 Kg8 Rc1 N6d5 Kc6 Kh7 Be5 Rcg8 Bd6 Bg7 Qbb5 Be5 Qb4 Kg7 Qbb7 Rh5 Rb1 Rb5 Rb4 Kh8 Ra4 Ra5 Qbb1 Rb5 Ra5 Nfh3 Rf3 Beg3 Re3 Nhf4 Rd8 Rf8 Ra8 Rg8 Ra7 Rb2 Kd7 Nb4 Rf5 Nbd5 Kc6 Kg7 Bb3 Rg2 Bc2 Kh8
1r3B2/1BQK1kqB/8/b2R2QR/n2Rnq2/P1N1rpp1/1Pp3r1/qbN2Q2 w - - 0 1 illegal: No proof kernel
RrB2b1B/2K2b2/1QQ2q2/1rQ1qbnk/6n1/p1P1NP2/1RNN1ppn/2R5 w - - 0 1 illegal: No proof kernel
2bR1q2/3rBNbk/3b1B2/4KPpP/1QQ1Q2r/4rqN1/1RBp1p2/1n2N2n w - - 0 1 illegal: No proof kernel
bq1R4/NNQ3rr/1Q1n1R1K/3pp3/2B2Rp1/1q2Pq2/kBPB1bnN/6r1 w - - 0 1 illegal: No possible last move, all moves rejected
BB6/3qqkq1/RB6/1pn1bN2/b2Q4/1r1R1p1n/pR1PPQ1N/3brKQ1 w - - 0 1 illegal: No possible last move
2nb4/2q5/N2kB1Rn/p2N1rBp/b1Pb1N1r/2qKpRQ1/3PQ3/3BRn2 w - - 0 1 illegal: No proof kernel
N4bb1/6r1/1BB1p1r1/1B3p2/1pP1nR1N/1qbN2R1/nr1QK1P1/2R1Qq1k w - - 0 1 illegal: No proof kernel
1rB2N1Q/4N3/1Rpq2QR/N1PPQ1nb/kp4p1/1r2BnnB/1qb2K2/q7 w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 f5 Nh3 d5 Ng1 Bh6 gxf5 dxe4 Qf3 g4 Qd1 Bg5 hxg5 Ra4 Nh3 Ra6 Ng1 Ra8 f4 Kd7 a4 Kc6 d4 e5 c4 b5 g6 h5 a5 b3 a6 b2 f6 e3 c5 e4 g7 e2 f5 h4 f7 b4 f8N Kb5 d5 c6 f6 h3 a7 h2 f7 Be6 Bf4 Nd7 Ra2 Rh3 Ra6 Rb3 Nd2 b1B Kf2 Ne5 Nh3 Rb8 a8B Bc2 Bb7 Nf6 g8Q Qd6 Qa1 Nh7 Be3 Nf3 Nc4 Nhg5 Qg6 Bd7 Qag7 Be8 Rb6+ Ka4 Nf4 e1Q+ Kg2 Rd8 Na5 Qc3 Kf2 Rb8 Bc8 Qb2 Bh3 Rd3 N8e6 Rb3 f8Q Bf7 Qe5 Be8 Bd2 Bf7 Qfh8 e3+ Ke2 Be8 Nf8 Bf7 Kf1 e2+ Kf2 Be8 Be3 e1Q+ Kg2 Qec1 Kf2 Bf7 Qgf5 Qd1 N4g6 Qda1 Ne7 Bh5 Qg6 Qe6 Rd1 h1N+ Kf1 Ng3+ Kf2 Qg8 Rh1 Qe6 Bf1 Qd6 Rh4 Qf6 Bh3 Qd6 Qge4 Bg6 Rh6 Bh5 Qeh7 Nh2 Qg6 Nhf3
1R1nNk1r/QN1Q4/1pR2p2/n1br2b1/B1P1Nq2/2p2PR1/1qKQ1q1B/6b1 w - - 0 1 illegal: No proof kernel
1N1Q1bqB/R7/1p1p2K1/1qRB2Bn/1bP1N1r1/n2Pq2Q/1pN3Rr/1k1b4 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 axb4 Qf3 c4 Qb3 cxb3 Ke2 Kf7 Ke3 Kf6 Ke4 e5 a4 g5 h4 d6 c4 b2 f4 b3 h6 g4 h7 g3 a5 g2 d3 b6 a6 Bg7 a7 Bf8 h5 Qe8 h6 Na6 Nf3 g1Q Nc3 b1Q Bg2 b2 Rh2 Qa2 Ne1 Qd8 Nc2 Qb3 Ra5 Bd7 Rc5 Qb5 Bh1 Rc8 a8R Nb4 Ra7 Be8 Bd2 Bh5 Rg2 Rc7 Be3 Rg7 Bd2 Qe7 Bc1 Rg4 Be3 Kf7 f6 Ke6 f7 Qd8 Bf2 Qg5 Bh4 Qg7 Bg5 Nf6+ Kf3 Qg8 Ne4 Be7 f8Q Kf5 Qa8 Bf8 Qd8 Ke6 Nf2 e4+ Ke3 Qe1+ Kd4 e3 Ne4 e2 Ke3 Qd2+ Kf3 Nfd5 f5+ Ke5 f6 e1B f7 Qc1 Rc8 Nf4 Rc5+ Nbd5 Nd4 Bb4 Nc2 Bg7 f8N Qe1 Na1 Kd4 Nd7 Ne3 Nb8 Nc2 Nf6 Ne3 Nc2+ Kc3 Ke4 Qd2 Na1 Nc2 Kf5 Na3 Nc2 Bf8 Ne4+ Kb3 Kf6 Ka2 Kf5 Qe3 Kf6 Qg7+ Kf5 Rg8 h8Q Kb1 h7 Rh4 Be7 Qgg3 Bg5 Bd1 Kf6 Nh5+ Kf5 Bg7 Kg6 Rg4 Qd7 Rc8 Qhd8 Bf8 h8B Rc7 Qf5 Rh7 Qf3 Qe5 Qg3 Qd5 Qh3 Qg8+ Kf5 Bg7 Qf3 Qa5 Nf6 Qge6+ Kg6 Qg8 Rg1 Ng3 Qf1 Qb5 Bd5 Rh5 Ne4 Rh2 Qh3 Nh5 Rg2 Bf8+
bNKQq3/B3bBkN/PrpnR3/n1q5/1RP1p3/B3n2r/p4Q2/bN5Q w - - 0 1 illegal: No proof kernel
1b5Q/nR1KR3/p2b1RbQ/Q7/BPn1N2B/kp2Nqr1/p1P4n/qB5r w - - 0 1 illegal: No proof kernel
Nr4k1/4R3/p1r2BP1/Q3bb1P/1Q2r3/1nBKpq1R/nb1N1pQq/5N1B w - - 0 1 illegal: No proof kernel
1B2RNQ1/n1N1rqpQ/2B1pR2/K4n2/1b1rr1k1/1Nq4p/b1R2PPq/7B w - - 0 1 illegal: Other
rq4nn/N3kPR1/r1b3p1/q1R1B2p/n1Qb1Q2/3q2PN/2Bp4/1Q1NK2B w - - 0 1 illegal: No possible last move, all moves rejected
b7/kbn1BpqP/8/1K1BP3/1R4np/N1qrN1Q1/2pRrN1b/2B2RQq w - - 0 1 illegal: No proof kernel
n3Qr2/1QR2pBp/b2b4/RP2nKBp/N4P1B/3NR3/4q1b1/n1rNq2k w - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 b4 h5 b3 axb3 g6 b4 gxh5 b5 Qd6 Qc2 Qd7 Qd1 Qd8 d4 Kd7 d6 e6 e3 Nc6 d5 Bg7 Bc4 Nb8 Ba2 Bf8 Bb3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qd4+ Kf5 Qd1 Ke6 b6 Ke5 Kd2 Ke4 f4 a5 g4 c5 b4 c4 b5 d4 g5 a4 b7 a3 g6 a2 g7 d3 Nf3 Qc7 d8B Ra4 d7 Na6 b8N Qb7 Re1 Qd5 Bb2 Qc6 Ne5 Qd6 Bh4 Qa3 d8B Ne7 g8R Ng6 Bdg5 Nc7 Nbd7 Qe7 Nb6 Na8 Qb3 Ba6 Nc3+ Kf5 Qc2 Qe6 Qd1 Bd6 Rc8 Rf8 Rc7 Ra3 Qf3 Ra5 Kd1 d2 Kc2 d1B+ Kd2 Ra4 Qb7 Bf3 Nd3 Kg4 e4 Kh3 Ke3 Kh2 e5 Bg2 Re2 Qe7 e6 Qe8 e7 Ra3 Ne4 c3 Nef2 c2 Bg7 c1Q+ Kd4 Qh1 Nd1 Qe1 Re5 Rc3 Re6 Qc6 e8Q Rc1 Re5 Qc2 Re3 Bh3 Ke4 Bg2+ Kf5 Kh1 Rb1 Qce2 Rb2 a1N Ra2 Nb3 Ra5 Na1 Na4 Ne5
q4kq1/K2QqpRp/1R1r1bbp/RPn1QB2/4r2P/r3Q1nB/5NN1/N7 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 f4 exf4 b3 Qg5 Bb2 Qd8 Bf6 Ba3 Bg5 Bf8 Bh6 gxh6 b6 a5 Kf2 c5 h4 a4 g4 c4 e4 a3 d4 f3 Ke3 a2 b4 f2 b7 c3 e5 c2 d6 c1R d5 Rc7 Kd4 Qe7 g5 Bh3 g6 Ra3 d7+ Kd8 e6 Rg3 g7 Ra3 Qb3 Rc8 Qe3 Ra4 Nd2 Rc6 Nb3 Rd6 Kc5 Qf6 e7+ Kc7 e8B Be7 d8N Qe6 Bd7 Bf5 Nh3 Nf6 g8R Nh5 b5 Re4 Rg6 Qf6 Bg2 f1Q Nf2 Qg1 Bh3 Qg3 Rag1 a1Q Rg2 Qa5 Ra1 Qfg5 Ra4 Ra6+ Rd6 Re6 Na1 Re4 Rg1 Bg4 Bf5 Qe5 Ra3 Bf6 Re6 Kd7 Rg2 Nc6 b8Q Nd4 Rd6+ Ke8 Ne6+ Ke7 Nf4 Rd8 Rc6 Qec7 d6+ Kf8 d7 Qg8 Rg3 Bf3 Rg7 Ng3 Ng2 Bh5 Ra4 Qb7 Qe5 Bg6 Ra2 Qa4 Ra3 Ra5 Rd6 Qa8 Kb6 Nb3 Ra2 Qa3 Rc6 Re8 d8Q Ra7 Qdd4 Re6 Qd7 Qe7 Ra4 Nc5 Ra3 Raa4 Rd6 Rab4 Ra5 Rb3 Rc6 Ra3 Rd6 Qc6+ Ka7 Qd5 Rda6 Rd6 Rb6 Qa8+
1qK2N2/2Q1p3/B1nQr2b/nPb1r1p1/B3NB2/3bpNqR/1Pq3k1/2RQ4 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Kc3 Kf6 Kc4 Kf5 Kd5 a5 h4 g3 f4 g2 c4 a4 h5 a3 h6 a2 h7 Nc6 Nf3 Kg4 f5 Kg3 f6 g1B f7 Na5 c6 Ra6 c7 Nf6+ Ke5 d5 c5 d4 c6 d3 Nbd2 Bf5 c8Q Bc5 c7 Nd5 Be2 Kg2 Rh3 Nb4 Qe6 g5 c8B Bh6 Qd6 Rf8 h8Q Nbc6+ Kd5 Rb6 Ba6 Qb8 Qhe5 Bg6 Rb1 a1Q Ke6 Qa3 Kd7 Rc8 f8N Bh7 Nf1 d2 Ng3 Bg6 Qc7 Qd3+ Qed6 Qb3 Qc2 d1Q Bf4 e3 Rc1 Qe1 Qcd2 Bd3 Ne4 Qg3 Qe1 Qc2 Bd1 Qe2 Ba4 Qc2 Nh7 Rf8 Qd1 Rf5 Nf8 Re5 Qe6 Nd4 Qd5 Rbe6 Qdd6 Qa7 Kd8 Ndc6+ Kc8 Qb8+
1n1r2R1/Bq2p1q1/5R2/1pq2QK1/1RnQPrb1/1BPB3N/N2kp1Nr/3b4 w - - 0 1 illegal: No proof kernel
2r1Rq2/1bQ1p1Qp/2nq3p/b3PB2/NPb1RR2/4KBN1/N5qr/Bn2k3 w - - 0 1 legal: proof: f4 b5 a4 d5 c4 Bg4 axb5 Bf3 cxd5 Qd6 h4 Qxf4 h5 Bg4 h6 gxh6 Qb3 Bh5 Kd1 Bg4 Kc2 Qf6 Qg3 Bh3 Qe1 Qf2 Qd1 Bc8 Kd3 Kd7 e4 Kd6 b4 Ke5 g4 Kf4 d6 Kg3 b6 a5 b7 f5 g5 c5 d7 a4 d8Q f4 g6 f3 g7 a3 Be2 a2 Qc7+ Kg2 Bb2 Nf6 g8B Bg7 Nc3 Nc6 b8R Bb7 Re8 Nd5 Rh4 Bd4 e5 c4+ Ke4 Rc8 Rf4 Bb6 d4 Ba5 Be6 Rf8 Bf5 Rf7 Rb1 a1Q Na2 c3 Qd3 c2 Re1 Qc1 Ba1 Qb2 Bd1 c1Q Ne2 Rf6 Ng3 Qc5 Re2 Qd6 Qb3 Ne3 Qf7 Nf1 d5 Nd2+ Kd3 Kg1 Qg7 Nb1 Ree4 Qf1+ Ke3 Qbg2 Be2 f2 Bf3 Rf7 Bh3 Rf5 Bhg4 Rh5 Bf5 Qg6 d6 Rh2 d7 Qf6 d8N Qd1 Qg4 f1B Qg5 Qf8 Qg7 Bc4 Ne6 Qd7 Nc5 Qd6 Ne2+ Kf1 Ng3+ Ke1 Na4 Bb3 Bh5 Be6 Bf3 Bc4
3Q2qn/1RPb2BN/1Q4b1/rP2nR2/4Np2/Q2q1B1p/1N3Knp/1k2bB1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 e4 Ke7 b4 Ke6 g4 d5 c4 h5 c5 f5 b6 a5 b5 h3 b7 a4 c6 h4 c7 d3 g5 a3 g6 d2+ Ke2 a2 g7 f4 Bb2 d4 Qc1 d1N Nc3 Ra5 Nf3 Nc6 b8Q Ne3 Nd2 d3+ Kf2 Bd7 Nd1 Nh6 g8N Nf7 Qb6 Ng2 Nf6 Bb4 Nh7 Qg8 Bd4 Bc3 Qa3 Bb4 Nb2 Bc3 Ndc4 d2 Nd6 d1B Rg1 Bh5 Rh1 Ke7 e6 Bg6 Bg7 Bd2 e5 Bc3 Rb1 a1Q Ne4+ Bb4 Rd1 Qb1 Rd5 Qd3 Rg1 Ne3 Rg5 Ng2 Rd6 Bd2 Nf8 Rh5 Nh7 Nh8 Rf5 Be1+ Kg1 Ke8 e7 Rh6 Nhf6+ Kf7 e8B+ Ke7 e6 Ne5 Nh7 Bc8 Bc6 Bd7 Nc5 Rh5 Bf3 Rh6 Qb8 Rh5 Ra6 Rh6 Ra8 Kd6 Ne4+ Kd5 e7 Kd4 e8Q Ke3 Qed8 Rh5 Nc5 Kd2 Qb6 Kc1 Ra7 Kb1 Rb7 Rg5 B1e2 h2+ Kf1 h3 Ne4 Bd2 Kf2 Rg3 Bh5 Re3 Bf1 Re1 Bf3 Bc3 B1e2 Rh1 Bf1 Be1#
5q2/R1P1rr1P/B2p1N2/2R2rn1/kB3Qb1/Nn2Q2n/Bb1p1R1p/qQ3K2 w - - 0 1 illegal: No proof kernel
q3R2B/Q1pNnp1q/2k3P1/1N1n1b1B/1n1pP3/4NK2/3B1Q2/1RbbrQ1r w - - 0 1 illegal: No proof kernel
BQbNR1n1/pr1Q1q1N/2PK4/q4r2/p1nbP3/Bp5r/Nq3kBQ/R7 w - - 0 1 illegal: No proof kernel
4K2b/pp2nqN1/2P1r1b1/R3Pp1N/6Br/1Q2R1B1/BN2qQ2/1bQ1q1nk w - - 0 1 illegal: No possible last move, all moves rejected
1QBb2QQ/qbnN1P2/4R2p/P1R3bp/K2B1N2/1n1N1kb1/r2p1b2/2Rr4 w - - 0 1 illegal: No proof kernel
1rb3nq/RR1QnP1R/2b3pN/Qp3n2/B3p1PQ/K7/1n1BnB2/4rkN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 fxe4 h5 d5 cxd5 g6 h6 Bg7 hxg7 Ra4 Bc4 Ra5 Bf1 Ra8 f4 Kd7 g4 Kd6 a4 Kc5 d6 Kd4 d7 h5 f5 c5 a5 e5 a6 c4 f6 b6 a7 b3 f7 c3 Bb5 h4 Ba4 Kd3 Na3 e3 Nb5 e2 Nd4 b5 Nf5 h3 Nh6 b2 Ra3 Qe8 d8B b1B Bh4 h2 Bf2 Nc6 Ra2 Rb8 a8Q c2 Qa5 Nce7 Ra1 Nf6 g8R e4 Rf8 Ba2 Rg8 Bd5 Ra2 Kc4 d4 Bc6 Kd2 e1N d5 Nd3 d6 Nb2 d7 Rh7 Rh8 Nfg8 d8Q Qf8 Qe1 Qg7 Qd7 Qf6 Nf5 Rh4 Rh7 Qh8 Nh6 Rh3 Ra3 Rg3 Rd3 Re3 Rd6 Bd5 Rb6 Bc6 Qd1 Re1 Rb7 Nd3 Qf3 Nb2 Qh3 Rf1 Ne2 Re1 Rf1 h1N Qh4 Ng3 Ng1 Re3 Re1 Ngf5 Re2 Ra3 Re3 Ra1 Ra3 Rb1 Ke2 Ra1 Bd2 c1N+ Ke1 Nbd3+ Kd1 Nb2+ Kc2 Ne2 Ra2 Re1 Ra1 Nc1 Kb1 Ne2+ Ka2 Nf4 Ka3 Ne2 Qe6+ Kd3 Qd7+ Ned4 Nh3 Ke2 Ng1+ Kf1 Rc1 Bd5 Rcc7 Bc6 Ra7 Ne2 Rcb7 Qf6 Bb4 Qd4 Bd2 Qh8
k7/5p1K/nR1B3b/nR4P1/1p3BNQ/3R1nbB/1PQNnrpn/Q1r3q1 w - - 0 1 illegal: No proof kernel
NQ2K1k1/RPQ4q/RN3n2/2PpQnN1/1n2pbB1/1nBr1p1b/5R2/4rn2 w - - 0 1 illegal: No proof kernel
3nQ1B1/1P3N1n/1r1np1pP/3r2pn/NN2k3/Q1bRn1KR/Qq1Bb3/6R1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h6 g4 Ba6 g5 hxg5 Qa4 Bb7 Qd1 Bc8 d4 Kd7 h4 Kd6 b4 c5 f4 a5 Kf2 c4 h5 g6 b6 c3 f5 c2 f6 e3+ Kg3 a4 f7 a3 h6 a2 b7 e2 b5 e1N b6 Bg7 f8Q Nd3 Na3 Nf2 Qd2 Nf6 Rh3 Ra5 Ne2 Nh7 Nc3 Bg4 Bc4 Nc6 Na4 Be2 b8Q+ Qc7 Qbc8 Qb8 Qce8 Nd8 Rb1 a1N b7 Rb5 Qa5 Rb6 Bd2 c1N Nc2 Ncd3 Nb4 Nc2 Rg1 Ne3 Qf3 Nf4 Ba2 Neg2 Qa3 Rf8 Qa6 Rf5 Qc4 Qc7 Qc2 Qd7 Bb3 Qc8 Qca2 Qc2 Bc4 Ne3 Bb3 Qb2 Bc4 Kc7 d6+ Kb8 d7 Kc7 d5 Kd6 Bb3 Ke5 d6 Ke4 Be6 Bc3 Bg8 Nc6 d8N e6 d7 Rd5 Nf7 Nd8 Ne5 Nc4 Nf7 Ng4 Nc6 Nd6 Nb4 Nc6 d8R Ne3 Rd7 Nd8 Rc7 Bh8 Rc3 Be5 Rd3 Bf6 Qd7 Bc3 Qe8 Nh5+
2QB3b/p1N3nn/2N3pK/Q1Rn1B2/n2nPrPR/r2R2p1/5k2/Q1Nb2q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 h4 Qb3 Rh6 Qh3 Rh8 Qg3 hxg3 h4 Kd7 b4 Kd6 d4 f5 Kd2 c5 h5 g6 h6 f3 Ke3 c4 Kf4 f2 b6 c3 b7 c2 b5 Nd7 b8N Nc5 h7 Na4 b6 Nf6 Kg5 f4 b7 f3 Na3 Bd7 Nc6 Rc8 Rh4 Bg7 b8Q+ Qc7 e4 Rhf8 Ne2 Bh8 Kh6 Be8 Qb1 Qb6 Bg5 c1N Ra2 Nb3 Nc1 Rc7 Bb5 f1N Rc2 f2 Qa1 Ne3 Rc5 f1N Ba6 Rd7 Bc8 Rdf7 Bf5 Rb7 Nb8 Bb5 Nc6 Be2 Rh3 Bd1 Rh4 Nh5 Bd8 Nfd2 Na5 Nf3 Nc6 Bf6 h8Q Ng7 Qg8 Ng5 Qh8 Nh7 Qg8 Re7 Qh8 Re6 Nb5+ Kd7 Nc7 Kd6 Qg8 Be5 Bg5 Rf7 Qc8 Rf8 Bd8 Ref6 Bd7 Rf3 Be6 R8f4 Bf5 Ne6 Qa6 Bh8 Qa5 Kd7 d6 Nd5 Q5c3 Rd3 Qa5 Qa6 Bg5 Ndf6 d5 Ne8 Nb5 Rd4 Rc3 Rd3 Ne7 Qb6 Bf6 Ng7 Rc7+ Ke8 d7+ Kf7 d8Q Qg1 Rc5 Nc7 d6 Rc3 d7 Rcf3 Bb2 Rc3 Qc8 Kf6 Rc4 Ke5 d8R Nf6 Ba3 Nh7 Rd3 Nd5 Nc7 Rf1 Qd8 Kf4 Qc8 Nd4 Nc6 Rb3 Be7 Ra3 Bd8 Rf2 Rd2 Ke3 Rc5 Rf4 Rd3+ Kf2
4QQ1B/k1N3rN/1r5P/1n1b1q2/1rb1B1N1/bRPr3p/K2pp3/BQn1R3 w - - 0 1 illegal: No possible last move, all moves rejected
1N2nQ2/1q1Q3B/1RQ1bp2/k1pNP3/r4bb1/Bpn1rB2/2P1b1RK/r2R4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 g5 fxg5 e5 dxe5 hxg4 Kf2 c5 Kg2 b5 h4 d5 e4 Kd7 a4 Kc7 a5 f6 a6 Kb6 g6 d4 g7 d3 h5 b3 h6 b2 e6 g3 e5 b4 a7 d2 e7 Na6 e8Q Nc7 h7 Qd7 Nf3 Ne7 g8R Ned5 Bd3 Bh6 Nd4 Nc3 Nc6 Bf4 Nb8 Qg7 Ra3 Bg4 Rb3 Ka5 Qc6 Ne8 Kg1 g2 Bg6 Bg5 Kh2 Qb7 Rg7 Rg8 h8Q g1R Bh7 Be2 Rg6 Bf4+ Rg3 Rg4 Qf8 Rf1 Rg1 Rf3 Rf1 Re3 Re1 Nb5 Nc3 b1B Ba3 Ba2 Nd5 Nc3 Rb2 Bg5 Rg2 Bh6 Qc1 d1B Qd2 Rf4 Qd4 Bg4 Qd3 Bde2 Rd1 Rf1 Qf5 Rg1 Qfd7 Re1 Rd4 Ra1 Rb1 Bac4 Rbd1 b3 Re4 Bcd3 Rb4 Bdf5 Rb6 Be6 Na6 Rc8 a8B Rc7 Nb8 Bf4+ Kh1 Qa6 Kg1 Ra7 Kh1 Qb7 Kg1 Rg3 Kh2 Re3+ Kh1 Qc7 Qb7 Bh5 Nb4 Bhg4 Qbc8 Ra6 Bf3 Qb7 Nd5 Ra8 Rb5+ Ka4 Qcc6 Ra5 Rb6+ Rb5 Bb2 Ka5 Ba3 Rb4 Kg1 Ra4 Kh1 Bh6 Kh2 Bf4+
Q1B1nnbr/6B1/K1bPQ1n1/1Ppb4/1kp4N/1pRRN1b1/Q2N3q/B4r2 w - - 0 1 illegal: No proof kernel
nR1r2q1/N1n1k2b/QK1p1r2/2r1p2R/R3N2p/b1NPnPn1/8/1Q1QBB2 w - - 0 1 illegal: No possible last move
Qr5k/3N2n1/1pnb1ppb/2B2R2/P1bQqBPn/2N2B2/3r1QR1/3b1N1K w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 exf4 h5 g6 h6 Qg5 Nc3 Qf6 Nb1 Qg7 hxg7 Ra7 Qb3 Ra4 Qd1 Ra8 Kf2 c5 a4 h5 e4 b3 d4 f3 g4 h4 e5 c4 d6 h3 e6 b2 d5 h2 e7 c3 Bg2 b6 Qd2 c2 Nc3 b1Q Ra2 Ba6 Nge2 Nf6 g8Q Bc4 Ng3 Nh5 Rf1 h1B Kg1 Nc6 Ba3 c1B Bc5 f2+ Kh2 Kd7 e8N Qe4 Nf6+ Kd8 Qe2 Bh6 d7 Ra7 Bh3 Bf3 Bg2 Rb7 Kh1 Ra7 Qe3 Bd1 Rc2 Ng7 Qd2 Nf5 Rb2 Nh4 Qc2 Kc7 d8B+ Kc8 d6 Rd7 Bc7 Rd8 Nh7 Kd7 Nf6+ Ke6 Qe2 Rd7 Qf3 Be7 Qa8 Rb8 Re2 Rdd8 d7 Bef8 Rg1 f1N Rf2 Ne3 Nf1 Nef5 Qe2 Ng7 Rf5 Nh5 Qf2 Be7 Bf4 Bef8 Nh7 f6 Bf3 Kf7 Rg2 Be7 Nf8 Kg8 Ba3 Kh8 Bad6 Rb7 Bc5 Rdb8 d8Q Ng7 Qd3 Rd7 Qd5 Rd6 Nd7 Bf8 Qe5 Rd2 Qed4 Bd6
1krb1b2/2R3Pn/3np3/QNp5/nRQB1b2/1B3Q2/1pP1Kb1R/N3q1Nr w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 a5 bxa5 f5 h3 fxg4 Bd3 g3 Bf1 g2 Nc3 g5 Nb1 g4 Ba3 g3 Bc1 Bg4 hxg4 Qd7 Bc4 Qd5 Bf1 Qd8 f4 Kd7 a4 Kc8 d4 c5 a6 h5 g5 b5 d5 h4 a5 e3 g6 e6 f5 e2 a7 h3 g7 h2 f6 b4 f7 b3 d6 b2 a6 Rh4 d7+ Kc7 Ra4 Qf6 d8R Qc3+ Nd2 Nd7 Rb4 Rc8 a8Q Nb6 a7 Na4 Rdd4 Qe3 Nb3 Nf6 Na1 Nh7 Qd3 Qe5 Kd2 e1B+ Kd1 Bd2 Qc4 Bg5 Be3 Bd8 Ke2 Rh5 Rd2 Qc3 Bd4 Rh6 Nh3 g1B Rd3 Be3 Ng1 g2 Rd2 Bfe7 f8Q Bf4 Qf3 Bed6 Qe8 Bf8 Qeb5 Nb6 a8N+ Kb8 Qa5 Rh5 Nh3 g1B Nc7 Bf2 Nb5 Na4 Bg2 Rh4 Rhd1 h1N Ng1 B2e3 Rf1 Nf2 Bh1 Ne4 Rf2 Bdc7 Rh2 Bf2 Qh3 Qg3 Bf6 Qg5 Qcc3 Qf5 Rd7 Qg6 Bd4 B2g3 Rg2 Bd8 Rc7 Be1 Rf2 Nd6 Bd5 Rh6 Bb3 Qg3 Qc4 Rh4 Qg4 Rh1 Rh2 Qc3 Qh3 Bf2 Qf3 Qe1+
3k2b1/3PRbb1/N2nqnp1/3Qp2B/r5b1/BQrp1P2/B4NR1/2Qn1K1R w - - 0 1 illegal: No proof kernel
1nk2BQB/3p1p1R/1b2N3/2rNbPn1/n1p1Bq1b/K3Q3/4rR1P/4QN1n w - - 0 1 legal: proof: b4 h5 d4 e5 g4 hxg4 c4 exd4 a4 b5 cxb5 Bc5 a5 Rh6 b6 Qg5 b5 Bf8 a6 Bb7 axb7 Rh8 Bd2 Qe7 Bc1 Qd8 Kd2 g5 Kc2 c5 Kb3 a5 f4 g3 e4 g2 f5 g4 e5 a4+ Ka3 d3 e6 g3 Nf3 g1B Nfd2 g2 Qe1 Rh6 Bb2 Qc7 Nc3 Kd8 Ra2 Ra5 Nd5 Ne7 Bh8 c4 Rc2 Bd4 Rg1 Qf4 Be2 Bf2 Nf1 d2 Bf3 d1N Be4 Bh4 Rf2 Bg7 Qe3 Bd4 Qe1 Nc8 Qe3 Nc6 b8Q Be5 Qa7 Nb8 b7 Nb6 Qe1 Rf6 Nb4 Kc7 e7 Re6 e8N+ Kd8 Nd5 Bd4 Re2 Nf2 Nec7 Nh1 Rf2 Re8 Bf3 Re2 Be4 Na8 b6 Rc5 Kb4 a3 Ne6+ Ke8 Ka4 a2 Kb4 a1B Ka3 Nc6 b8B Be3 b7 Be5 Qa6 Nb6 Qa7 Na4 Bd6 Nb8 Bf8 B3d4 Ng5 Kd8 Qb6+ Rc7 Qb3 Bb6 Qe3 Nc6 b8Q+ Rc8 Qd6 Nb8 Qg6 Rc5 Qg8 Kc8 Ne6 Bd4 Rf3 Be5 Rh3 Bg3 Rh7 Bf2 Nd2 Bh4 Rf1 g1N Rf2 Nf3 Nf1 Ng5
2Q3n1/pbq3p1/2B1P1PB/Q6p/4QrNN/R4b2/K2b2Rr/2nkrRNr w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 d4 Ke7 Kd2 Kd6 Kc2 h5 Kb3 c5 e4 f5 g4 f3 e5+ Ke7 b6 f4 b7 c4+ Ka2 f2 b4 c3 d6+ Ke6 g5 Kf5 b5 Ke4 g6 c2 b6 f3 d5 Qg3 e6 Qh3 d7 Qg3 d8N Nd7 b8R Bb7 d6 Ne5 d7 Bb4 Bh6 c1R Nf7 Bd2 d8Q Nd3 Qc2 Qc7 Bg2 f1R Ne5 Rce1 Ng4 Rf2 Rc8 Rb8 Qg5 Rfe2 Qa5 Kd4 Rh3 f2 Bc6 f1B Rf3 Bg2 Rf1 Bf3 Rf8 Be4 R8f2 Bf3 Rh2 Rf8 Rg2 Rf4 Qca4+ Bb4+ Nd2 Kc3 Rb1 Rf2 Rb3+ Kc2 Ra3+ Kc1 Nf6 Bc3 Qe4 Kd1 Ng4 Nc1+ Kb1 Be2 Ndf3 Bd2 Nh4 Bf3 Kb2 Ne7 Ka1 Rb8 Kb2 Ng8 Ka1 Ba6 b7 Rc8 b8Q Bb7 Kb1 Rd8 Qc8 Rd5 Rg3 Rh2 Rg2 Rg5 Ne5 Rg3 Ng4 Rgh3 Ka1 Rh1 Kb2 R3h2 Ka1 Ne2 Ka2 Nc1+
3QRNkn/1BK1rq2/4Qq2/1N2nr1Q/RP1p1b1n/2P3p1/pn1Bb3/2R2N2 w - - 0 1 illegal: No possible last move, all moves rejected
2r1Q3/1n1BbnBR/1R3b1N/q1pk2p1/N2pbB2/2R2P1N/Pq2b3/4rQ1K w - - 0 1 illegal: No proof kernel
1QK2N1Q/b6B/k3bRp1/rrBR1NNP/Q3n3/q5p1/P1p1qb1b/R3n3 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 Ke2 Kd7 Ke3 e5 d4 c5 h4 Kc7 f4 b5 f5 Kb7 d6 b4 f6 c4 d5 g6 d7 c3 d6 b3 h5 b2 f7 Na6 Qa4 c2 Nc3 b1Q Nce2 Nb4 Ng3 Qb2 Nh3 Qe7 d8Q Be6 d7 Nf6 Bc4 Nd3 Rf1 Ne1 Nf5 Qba3+ Bb3 g3 Qb8+ Ka6 d8R Qe8 Rd4 Bc5 f8N Ba7 Ng5 Rh7 Bd2 Rb7 Bb4 Rb5 Bc5 Qe7 Rd5 Qe8 Kd2 e3+ Kc3 e4 Kd4 e2 Ke5 e3 Kd6 Ne4+ Kc7 Nd3 Nfh7 e1B Nf8 e2 Rf4 Bf2 Rf3 Bf7 Rf4 Qe5+ Kc8 e1B Nfe6 Bb6 Ned4 Bg1 Rd6 Nef2 Nde6 Qe2 Nh6 Ne4 Nf8 Bh2 Be6 Bf2 Rd5 Ne1 Rff5 Be8 Bg8 Bf7 Bh7 Ra7 Qd4 Bg8 Qh8 Bf7 Rf6 Be6+ Nd7 Rb4 Nf5 Kb5 a6 Rb7 a7 Ra4 a8Q Ra6 Qe5 Raa7 Qab8 Ra5 Qd4 Ka6 Qa4 Ba7 Qc6+ Rb6 Qa4 Bf7 Nf8 Bg8 Nfe6 Rb5 Nf8+ Be6+
N1Q4b/4b1qb/2r1P1k1/1R2Q3/Q1npNrq1/pK2PpBB/2R1B1n1/b4R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 f5 c4 Kf7 Kc2 d5 b4 a5 h4 g5 h5 d3+ Kb2 d2 b6 f4 b7 g3 c5 g4 c6 g2 h6 a4 h7 a3+ Kb3 g3 c7 Be7 b5 Nc6 b8R Kg6 b6 Ra4 b7 Nh6 Nh3 g1B Ra2 g2 Ng5 Bd4 Nc3 g1B Ne6 Qd7 Rc2 Ng4 Ne4 Ne3 Bb2 Re8 h8Q Ng2 e3 Bh2 Be2 Na5+ Ka2 f3 Rf1 Nc4 Kb3 Rf8 Bc3 Ra6 Bb4 Rf4 Bd6 Rc6 Qf8 Qe8 Qh8 Bd7 c8B Qf7 Nc7 Qg7 Na8 Bf5 Be6 Ba1 Qc8 d4 Bc7 Kh5 Bd6 Bh7 Bh3 Kg6 e6 Rh4 Bg3 Rf4 Qe1 d1Q Qb4 Qc1 Qa4 Qe1 Qc7 Qa5 Qe5 Qa7 Rf8 Qa5 b8Q Qd8 Rf5 Qdg8 Bf2 Bg3 Qc8 Bgh4 Rh5 Bhf6 Bh4 Q7f8 Bg3 Bh8 Qec7 Qgg7 Rb5 Qf5 Qe5 Qg4
2n2qQ1/BN1nRb1R/pbQ1BR2/5PNq/2b2K2/p1k2B2/1brpPQ2/6r1 w - - 0 1 illegal: No proof kernel
Rq1r4/1bN1q1Qp/p1rP1n2/2KQBp2/r1Nr2R1/4B1Q1/3bkP2/3Rn2B w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 Kd7 Ke3 Ke6 d4 Kd5 c4+ Ke6 g4 f5 c6 a6 d5+ Ke5 c7 e6 g5 h3 g6 h2 g7 Qe8 b6 Nc6 c5 Nf6 g8Q Nb4 b7 Nd3 b8B Ne1 c6 Bb4 Ne2 Bb7 Rg1 h1R Nd2 Rh4 Nc3 Qe7 Qg6 Rd8 c8Q+ Rd6 c7 Rb6 Rg4 Qe8 Ke2 Kd4 Qg7 e5 Bg2 Qf8 Bh1 Qg8 Rg1 e3 Rg4+ e4 Qcf8 Ba5 c8R Qh8 Qd6 Qe8 Kf1 Kd3 Nb5 Bb4 Nc4+ Bd2 Nc7 e2+ Kg1 e3 Qg3 Nc2 Rd8 e1Q+ Kg2 Qb5 Kf3 e2 Ne8 Qb4 Be5 Qf8 Nc7 Qg8 Rg6 Rd4 Rg4 Qf8 Re8 Rd8 Rb1 Qe7 Rg8 Qf1 Rh8 e1R Rf8 Ree4 d6 Rd7 Rh8 Qh3 Ra8 Rd8 Ra1 Qh5 Rb1 Qhe8 Ra1 Ne3 Rb1 Ng2 Qb3+ Bc3 Be3 Qg8 Qa2 Bd2 Rd1 Qgf8 Na5 Ra4 Qd5+ Red4 Nc4 Ne4 Rg5 Ne1+ Kf4 Ke2 Rg4 Qh8 Qdg8 Rd3 Bb2 Rd7 Qd5 Qb8 Bf6 Rd8 Bd4 Qf8 Ke5 Nf6 Bb2 Rc3 Kd4 Rd3+ Kc5 Qe7 Be5 Rd4 Qf8 Qe8 Qh8 Qe7 Qg7 Rc6+
k2Bn2K/2r1NP2/1q5r/qr2Qp2/NBN1b1P1/p1brn3/5pQQ/1B2R2R w - - 0 1 illegal: No proof kernel
NN3q2/q4p1q/BB2bR1Q/3Np2r/2P3q1/b1r1Q1Rp/Pkn1n2K/4R1B1 w - - 0 1 illegal: No proof kernel
2BrB1B1/npb2qQQ/1r2b1p1/1PP3Nn/1n4k1/Q1p4n/q1N2RNR/7K w - - 0 1 illegal: No proof kernel
bn1q1qb1/p4B1Q/5Q2/N1RPBp2/Rn5r/4np1K/P2QR3/rkn1N1N1 w - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 Kd7 Kg2 Kc6 c4 f5 d4 e5 g7 h5 g6 b5 Kh2 b4 Na3 b3 Bh3 b2 Qc2 b1Q Qb2 e3 Qc3 e2 Bb2 e1N Qd2 h4 Bg2+ e4 Nc2 Ne7 g8Q h3 g7 Rh4 Qh8 Nd5 g8Q e3 Qgh7 e2 Qf6+ Be6 Bf1 Nd3 Ne1 Qd1 Rc1 Qd6 Rc2 Nc1 Bg2 Qe7 Bf3 Qf7 Bh5 Qf8 Bf7 Ne3 Ba1 Na6 Rb2 Rb8 Rb4 Rb7 Ra4 Rb1 Bb2 Nb8 Bc3 Kb7 c6+ Kb6 c5+ Kb5 c7 Ra1 c8R Bd5 c6 Bc4 Nc2 e1N c7 Ned3 Ne1 Nb4 Re8 Bd5 c8N Kc4 Ne7 Be6 Nc6 Bd5 Bh5 Bg8 Rc8 Qf3 Bg6 Qd5 Be8 Qd8 Na5+ Kd5 Rc5+ Ke4 Qf2 N8c6 Bf7 Nb8 Nc2 Kd3 Bb2 Ne2 Ne1+ Kd2 Bc3+ Kc1 Bb2+ Kb1 Qg2 Nc1 Qd2 Ng2 Ngf3 N8c6 Rg1 Ne3 Rg2 Nb8 Ng1 N8c6 Re2 Nb8 Kh1 h2 Bc3 Ng4 Kg2 h1B+ Kf1 Bb7 d5 Ba8 Kg2 f3+ Kg3 Ne3 Be5 Re4 Kh3 Rh4+
N1rRbkq1/p3nq2/P1Br2p1/N6B/p4BPR/3n3Q/1K1b2R1/nQQ4n w - - 0 1 legal: proof: f4 b5 h4 d5 a4 e5 c4 exf4 cxd5 g6 h5 Bc5 h6 Bf8 a5 Qf6 Qa4 Qg7 hxg7 bxa4 Kd1 f5 Kc2 c5 b4 h5 d4 f3 e4 h4 e5 c4 b5 c3 a6 f4 e6 h3 e7 f2 d6 f3 b6 h2 b7 Nc6 b8Q Nh6 g8Q Ne5 d5 Rh7 Nd2 Nhg4 Qb1 Nd7 Nh3 Ndf6 Ra2 Rh4 Qe6 Bd7 Nf4 Rc8 Be2 f1N Nb3 f2 Na5 Ne5 Bh5 Nd3 Qh3 Nd2 Ne6 Nb3 Bf4 f1Q Nc7+ Kf7 g3 Bh6 e8B+ Kf8 Na8 Ng8 g4 Ne7 Qc1 Na1+ Kb1 Bb5 Rg2 c2+ Ka2 Qf3 d7 Bc6 Qb1 c1Q d8R Qc4+ Ka3 Bb5 d6 Qg8 d7 Qfd5 Qc1 Qdf7 Qb1 Bg7 Qc1 Bc3 Qb1 Bd2 Qc1 Nb4 Kb2 Nd3+ Kb1 Qfh7 Qc5 Nf2 Qf3 Rh3 Kb2 Rc7 Rb8 Qhf7 d8Q Bb4 Qdd3 Bd2 Rd8 Rc8 Qb1 Rg3 Qfa3 Rd3 Qcc1 Rd6 Bc6+ Kg7 Be4 Be8 Bc6 Kf8 Rf1 h1N Rd1 Ng3 Rh1 Nge4 Qac3 Nc5 Rh4 Nh1 Qh3 Nd3+
7Q/2N2BQ1/2R4q/2Knp1R1/N1bpPk2/rNqR1qp1/r1QbbBP1/5r2 w - - 0 2 legal: proof: f4 c5 a4 b5 axb5 Qc7 h4 Nc6 d4 cxd4 h5 Nd8 f5 Qh2 Ra3 e5 Ra1 Ne6 h6 Nxh6 fxe6 Ng8 Kf2 d3 Ke3 Ke7 b4 Kf6 c4 Kf5 c5 d5 e7 h5 e8N g5 b6 a5 b5 d2 b7 g4 b8Q d4+ Kd3 h4 Kc4 h3 c6 a4 e3 a3 b6 a2 c7 g3 b7 Bh6 Ne2 Nf6 Qa7 Be6+ Kc5 Qg1 b8R h2 c8Q Qf2 e4+ Kg4 Qc2 d1B Nd2 Rh7 Rab1 a1Q Qad7 Ra2 R1b6 Rh8 Rg1 h1Q Nc7 Bf4 Ra8 Qh6 Nc3 Bf3 Bb5 Be2 Rd1 Kg5 Rd6 B6c4 Nb3 Nd5 Be3 f5 Rd3 Qff1 Bg1 Bd2 Qf7 f4 Be8 f3 Rc6 f2 Qf8 Bd1 Bf7 Kf4 Qce8 Qe2 Qc8 f1R Bf2 Qf3 Qh3 Qe6 Qh1 Rg8 Qh8 Qh6 Re8 Qb2 Ree6 Be2 Rg6 Qa1 Qfg7 Rga8 Rg5 R8a3 Na4 Qc3
Rq3nQb/BB1R2N1/pNnq1k1p/q4B2/3b3K/r1R1pQ2/2P1P3/4nbQ1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 f5 axb5 g5 Nc3 a6 Nb1 Ra7 Ra5 Rc7 Ra2 Rc5 Ra3 fxg4 Ra1 g3 Kd2 g4 Ke1 Rg5 hxg5 Qc7 Na3 Qb6 Nb1 Qd8 b4 Kf7 f4 d5 b6 e5 b5 h6 f5 g2 Kf2 d3 Kg3 d4 g6+ Kf6 g7 e4 b7 d2 b6 d3 Nc3 Ba3 Nh3 g1N Kh4 g3 Nd5+ Kf7+ f6 g2 Nhf4 Bb2 Rh3 Ne7 Nh5 Nd7 b8Q Nf8 b7 Qa5 Nb6 Nc6 g8B+ Kg6 Bc4 Rg8 f7 Bh8 Ng7 Kf6 Bd5 Bd7 Qe1 d1Q Be3 d2 Bc5 Bf5 Rc3 Qb1 Be3 Qb3 Rd1 Bh3 Be6 Qb1 Bf5 Qbb4 Qf4 Qb2 b8Q Nf3+ Kh5 g1B Bg2 Bf2 Qg1 Ne1 Qf3 Qbb5 Bh1 Bf1 Qbg3 Qe5 Kh4 Qb8 Bc5 Bd4 Qg3g2 e3 Qgg4 Nh7 Q4g2 Rc8 f8R+ Ke5 Rd8 Nf8 Rd7 Kf6 Ra7 Be5 Ra8 Rd8 Qgg4 Rd3 Qc4 Bd4 Qg8 Ne5 Nc8 Nc6 Ba7 Qbc7 Nb6 Qb8 Rb1 d1Q Rb5 Qc1 Rd5 Qca3 Rd7 Qad6 Qh5 Ne5 Bb7 Nc6 Qf3 Qa4 Rc5 Ra3 Rc3 Qa5
Q4BQ1/bK1p1Q1B/PN5p/1p1PRbrq/1N2q3/kN3B1R/2r1r1q1/n5b1 w - - 0 1 legal: proof: e4 g5 c4 b5 h4 gxh4 c5 f5 exf5 Nc6 Qc2 Na5 Qd1 Nc4 b3 a5 b4 Nb6 cxb6 axb4 Ke2 c5 Ke3 e5 d4 Ke7 f4 Kd6 g4 e4 a4 h3 a5 c4 b7 c3 b8N b3 g5 c2 g6 h2 g7 b2 a6 h6 f6 Qa5 f5 Be7 f7 Qc7 f8Q Qb7 Bg2 Nf6 Bf3 Rg8 Nc3 b1Q Nge2 Ng4+ Kf4 e3 f6 Qd5 f7 Bb7 Qg1 Qh5 Nc6 Re8 Nb4 Be4 d5 Kc5 Nd4 e2 Ba3 e1B Nb3+ Kc4 Qf2 c1R Na4 Ne3 Nb6+ Kc3 Qf1 Bf5 Ke5 Nc2 Ra2 B7h4+ Kd6 Bef2 Kc7 Re2 Kb7 Bg1 Qa8 Bhf2 f8Q Na1 Qf7 Bc5 Qg2 Qe4 Rb2 Rcc2 Qgg6 Re8 g8B Re5 Bh7 Bcd4 Qgg8 Bde3 Nc8 Ba7 Rb1 Kc4 Re1 Kc3 Bc1 Kc4 Nb6+ Kc3 Be3 Kb2 Bc5 Ka3 Be7 Be6 Bf8 Rg5 Rd1 Bh3 Rd3 Bf5 Re3 Bf2 Re1 h1Q Rc3 Qg2 Re3 Rg6 Rh1 Bg1 Rh3 Qe5 Re4 Rg5 Re3 Qd4 Re5 Qe4
BB2N3/Q1b1pB1K/qn1nN2R/k3b1q1/q4Q2/1Rp1P1r1/PQ4np/4N2b w - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 h4 b5 b4 a5 Bg2 axb4 Bf1 Ra6 Bb2 Rg6 Bc1 fxg4 Bb2 g3 Ba3 g4 Bc1 Rg5 hxg5 Be6 Rh5 Bd7 Rh1 Bc8 f4 Kd7 d4 h5 Kd2 c5 Ke3 Kc7 Ke4 Kb6 d6 g2 d7 b3 Kf5 g3 Kg6 b4 f5 b2 d5 h4 f6 c4 d6 b3 e3 h3 f7 c3 Na3 b1N Bc4 b2 Qa4 Qe8 d8N Bg7 d7 Nf6 Bd5 Nh5 Ne6 Nd2 Nf3 g1Q Ba8 g2 Rb1 Bb7 Nb5 Ne4 Ne1 Nd6 Nbc7 Rg8 d8Q Nf4+ Kh7 Nd7 f8Q Be5 g6 Bc6 Qc2 Ka5 g7 Nb6 Qb8 Bf3 Qff5 Qa4 Ne8 Qf1 Rh2 g1B Qa7+ Qa6 Qd2 Ng2 Qf4 Bd5 Rh1 Bh2 Qdf2 Rf8 g8B Bg3 Bf7 Rg8 Ra1 b1Q+ Qc2 Qab4 Ba3 Qa4 Bc5 Rg6 Qb2 Qf5 Rb1 Qg5 Bd4 Nh4 Rh2 Bh1 Bc5 Ng2 Ba3 Ndc4 Bd6 Rg8 Bb8 Bc7 Qa3 Nd6 Rb3 Rg6 Qb2 Rg8 Qf5+ Be5 Qf4 Nh4 Rg2 h2 Rg3 Ng2 Rh3 Qf6 Rh5 Rg3 Rh6 Qg5
2B2b1N/1ppR2qK/2Rbr1p1/5r1k/1rN3qb/2nB2B1/1P1q2PR/Q2N3Q w - - 1 2 illegal: No proof kernel
8/b3r2B/5p1R/2p1NPn1/1bqP1QbK/BQ3rr1/1Rp2N2/R1b1NkbB w - - 0 1 legal: proof: c4 h5 d4 d5 g4 dxc4 b4 a5 bxa5 hxg4 e3 Nc6 d5 Nd4 exd4 Be6 Be3 Bf5 Bc1 Bc8 f4 Kd7 Kf2 Kd6 Kg3 e5 h4 b5 a4 g5 h5 b4 h6 c3 a6 b3 h7 e4 a7 e3 a5 b2 a6 f6 Qb3 c2 Ra5 e2 Rh6 e1B+ Kh2 g3+ Kg2 g4 Qb7 Bb4 Nc3 b1R Ba3 Rb3 Nd1 Rf3 Nf2 c5 Rh2 Nh6 Bd3 Nf7 Rb5 Ng5 Rh6 Rg8 h8N Rb8 Qf7 Rb7 a8R Re7 a7 Qe8 Rb7 Qb5 Ng6 Qc4 Ne5 Bg7 Bh7 Bd7 Kh1 g2+ Kh2 Bf5 Qg6 Bd7 Qd3 Be6 Qb3 Bf8 Ngh3 g1B+ Kg2 g3 Nfd3 Rg6 Nhf2 Bh2 Ne1 Bg4 f5 Rgg7 Rab8 Rg6 a8B Rgg7 Ra7 Rg8 Rh4 Bh6 Rh3 Ne4 Bb7 Bc1 Rh6 Ng5 Raa8 Kc7 d6+ Kb6 d7 Kb5 d8Q Rgg7 Qd6 Rg8 Qd3 Rg6 Kf1 g2+ Ke2 g1B Kf1 Rf7 Kg2 Re7 Qb3 Rg8 N5d3 Rgg7 Qg3 Rg6 Qh4 Bc7 Ne5 Bb6 Ra4 Ba7 Qh2 Rf4 Kg3 Rf3+ Kh4 Qf7 Nh3 Rf1 Qd5 Bf3 Qf4 Bbd2 Bb4 Ne6 Nc4 Rg3 Nb6 Ng5 Nd7 Bg4 Ra1 Rf2 Qdf3 Kc4 Ba3 Qg8 Bc6 Ba5 Rb3 Bb4 Rb2 Qf7 Qd5+ Kc3 Qa2 Qc4 Ne5 Rf1 Bh1 Rff3 Qe4 Kd2 Qb3 Kd1 Qf4 Ke2 Nf2 Kf1
1N2nQ2/Qnq1pr1k/8/2n1p1nB/1p2rr1N/3BPN2/PB1b1QR1/3K1R1n w - - 0 1 illegal: No proof kernel
1r4n1/r2Q1B1b/2BQ2PR/p2NBpp1/5N2/rk1K3R/5Pnn/qrQ2rR1 w - - 0 1 illegal: No proof kernel
4N2B/1k1rp3/2Rn1R2/Pp1rNRrn/1pQr3K/3BP3/1Qb3q1/nBr1Q3 w - - 0 1 legal: proof: g4 a5 c4 g5 b4 axb4 h4 d5 cxd5 f5 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Bg2 g4 Bf1 Bg5 hxg5 Ra6 Nc3 Ra7 Nb1 Ra8 a4 Kd7 d4 h5 f4 b5 a5 c5 d6 Kc6 f5 c4 f6 c3 e3 g2 Kf2 h4 d7 c2 f7 h3 Kg3 h2 f8R Ra6 g6 Bb7 g7 Ra8 d5+ Kc7 Qe1 Na6 Bb2 c1R Nf3 Nh6 g8B g1R+ Kh4 g3 Nbd2 g2 Ne4 Ra7 Rf5 Nf7+ Bh7 Nd6 Ne5 Qg8 Bd3 Nc5 Nf6 Nb3 Ne8+ Kb8 Ra2 Na1 d8Q+ Bc8 Bc3 Rd7 Rc2 Kb7 Bb2 Rf1 Rc6 g1R Rf6 Rf5 Qc7+ Ka8 Bd4 Rgg5 Rf1 h1N Bc3 Ng3 Bb1 Nde4 d6 Nh5 Rf2 Qa2 Rf4 Qg2 Bb2 Rd8 d7 Nd6 Bd4 Rc4 Bc3 Rd4 Bd3 Bb7 Bg6 Rc8 d8Q Rf8 Qdd7 Rd8 Qe6 Rd7 Qc4 Bc8 Qb6 Rh8 Qbc5 Kb7 Qb3 Rh6 Qb2 Rh7 Qc4 Rh6 Nf7 Rfd5 Ne5 Rh8 Ng7 Rhd8 Ne8 Rc7 Bb1 Bf5 Bh7 Bc2 Bd3 Rdd7 Rf5 Ne4 Rff6 Rc8 R4f5 Nd6+ Ng4 Qf1 Re6 Qg2 Qc5 Rc4 Rc7+ Kb8 Bh8 Bb3 Ref6 Rc1 Qcc3 Bc2 Ne5 Ka8 Rc5 Kb7 Qd4 Rc6 Rc3 Rc4 Qg4 Re4 Rc6 Rc4 Qgd4 Nf4 Qc5 Rcd4 Qc4 Nh5+
2nB1bB1/4Qp2/np1qn2P/rR4Nk/1RN4q/2Rb2pn/nNQ3P1/1B1K4 w - - 0 1 illegal: No proof kernel
5q2/4pQ1B/b1k1rpp1/1r1N1qP1/RQ3Pqb/Nq1B3K/q3nQ1R/4N1B1 w - - 1 2 illegal: No possible last move, all moves rejected
2qQ3q/1p5N/qPRrrRQ1/B3ppNK/n5Nn/1q4B1/1Rb1QPk1/1q6 w - - 0 2 legal: proof: c4 g5 e4 d5 cxd5 a6 h4 gxh4 d4 Bh3 b4 Bf5 e5 Bh6 b5 Bc8 b6 Bf4 Bb5+ axb5 Kf1 Bd2 Ke2 Bb4 Kf1 Bc5 Ke1 Bd6 exd6 Bh3 Nf3 Bd7 Ng1 Bc8 Ke2 Kd7 Kf3 e5 Kg4 f5+ Kh5 c5 a4 b4 g4 h3 a5 c4 g5 h2 a6 c3 a7 b3 g6 b2 g7 c2 Nf3 Na6 Ng5 Nc5 Nc3 b1Q Nce4 Ne7 g8Q Ng6 Bd2 c1Q Ra2 Qa3 Ba5 Qbb3 Qe2 Nh4 Qg6 Na4 Rb2 Re8 Rc1 h1Q Rc6 h6 Nh7 Re6 Neg5 Qb1 Nf3 Qh8 Nh2 Qc5 Ng4 Q1d3 Ng5 Qa6 Nh7 Nf3 Rc7+ Kd8 d7 Ke7 d8N+ Kd6 Rd2 Qa2 Qc4 Bd7 Qe2 Nc3 Rb2 Ba4 Rc8 Rb8 a8R Bc2 Rc7 Q2c4 Rc8 Na4 Nf7+ Ke7 Rf8 Rd8 Rc8 Qb3 d6+ Kd7 Ra2 Qc7 Rb2 Kc6 d5+ Kc5 d7 Kd4 d6 Kd5 Qf1 Ke4 Qb5 Qb8 Rc6 Qc8 Qf1 Ne1 Qc4+ Kf3 Kh4 Kg2 Qd3 Rf6 Qe2 Nf3+ Kh5 Re8 d8B Re7 d7 Rd6 Qe3 Re8 Bh4 Ree6 Bg3 Nh2 Kh4 h5 Kg5 h4 d8Q Nf3+ Kh5 h3 Qg7 h2 Qg6 Nh4 Qe2 h1Q Ng5 Qa1 Rf6 Qb1
bbQNK3/n3R1QQ/B3p2q/Rp1B2nn/Nn4P1/B1qr4/2p1Pk2/5N1n w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g3 axb4 g4 fxg4 h3 g5 Nc3 b5 Ba3 g3 Ne4 g2 Nc3 g4 Bc1 g3 Nb1 Ra6 Bb2 Rg6 Bc1 Rg4 hxg4 Bd7 Rh6 Bf5 Rh1 Bc8 a4 Kf7 d4 Kf6 Kd2 Kg5 Ke3 c5 a5 h5 d6 b3 a6 h4 d7 c4 d5 b2 d6 c3 a7 h3 Kd4+ Kh4 Ke5 e6 a8B c2 f4 h2 f5 Nf6 Nf3+ Kh3 Bb7 Qa5 d8Q Nh5 Ba6 Bb7 f6 Ba8 Nc3 b1N Na4 Nc3 d7 Na2 f7 Nb4 Ba3 Qc7+ Qd6 Qc3+ Qd4 Bh6 Kd6 N8c6 f8Q Na7 Ke7 Bf4 Qfg7 Bb8 Qc8 Rd8 Nd2 Kh4 Ra2 g1Q Qd3 g2 Qdh7 Qge3 Ra1 g1N Bg2 Kg3 Nf1+ Kf2 Bd5 Qh6 Kf7 Re8 d8N Nf3 Ra2 Rf8+ Ke7 Rf5 Ke8 Ng5 Qgg6 Qb2 Qe7 Nd3 Bb4 Ne4 Ng3 Qc3 Nb6 Rf3 Ra5 Nhf4 Na4 Ng5 Ba3 Nb4 Rf1+ Ke3 Qeh7 h1N Qgg7 Nh5 Rf2 Rf5 Rf1 Re5 Rf7 Rf5 Rb7 Kf2 Nf1 Rf3 Re7 Rd3
3R1QqR/1KBr4/1NR3p1/nq4P1/prp2P2/N2q4/1rb4Q/BB1k1nrN w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 fxe4 h5 g6 h6 Bg7 hxg7 Ba6 Bd3 Bb7 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc3 Kd5 f4 h5 d4 a5 b4 e5 g4 h4 g5 a4 b6 h3 b7 e3 b5 Ke4 d5 h2 d6 e2 d7 e1R b6 Ne7 g8N Nbc6 b8Q Nf5 b7 Ncd4 Nh3 Nb3 Qd2 Kf3 Qb2 e4 Rg1 h1R Qh2 e3 Qe5 e2 b8R Ng3 Na3 Rd1 Nf6 Qg8 d8B Bf5 Bb2 Bc2 Qe8 Rd7 Rd1 e1Q+ Rd2 Qc1 Ba1 Qb1 Bd3 Nf1 Qf8 Rh4 Rgg2 Rg1 Nf2 Rg4 Rb6 Rb8 Rc6 Rb4 Nh1 Rg3 Rge2 R3g2 Re8 Re2 Rd1 Rf2 Be4+ Ke2 Nd5 Rfg2 Rd4 Qd1 Nb6 Qd3+ Kb2 Ke1 Bc7 c3+ Ka2 c4 Rb8 Rf7 Rdd8 Kd1 Rb7 Rb5 Na8 Qd7 Re6 Bd3+ Nc2 Ra5 Ka3 Nd4 Kb4 Nb3 Na3 c2 Re7 c1Q Rb6 Rb2 Rd6 Qc6 Nb6 Qc2 Bf5 Qd5 Rc6 Rh7 Re3 Rd7 Rh3 Qe5 Rh8 Ra8 Nd5 Qd2+ Kb5 Rb8+ Ka6 Rb4 Nb6 Qb5+ Kb7 Qe3 Be4 Qd2 Bd5 Bf5 Be4 Qe3 Bb1 Bc2 Qg7 Qd3 Qf8 Na5+
QR1BB1N1/2bN2Q1/1r2NPpq/2nKR1P1/5r1r/3Rq3/pp2k3/Q1n1n2n w - - 0 1 illegal: No proof kernel
3NNKrn/5BQN/1qQ2pR1/4BPn1/1k2qRpp/1r3P1b/q1rqQR2/8 w - - 0 1 illegal: No possible last move
Q1r1b2K/4nPp1/4RNk1/BR1qp2q/NN2PQn1/b2b4/p1BR3Q/1q4q1 w - - 0 1 illegal: No proof kernel
3n2R1/2q2rq1/1b1Qbk2/Q1P1rNR1/bp3BBp/1P1NpQK1/N2Bq3/5b2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a3 f5 exf5 g5 Ke2 gxh4 Ke1 Na6 a4 b4 Bf4 Nc7 Bc1 Nb5 axb5 Bb7 Be3 Ba6 Bc1 Bc8 f4 Kf7 Kf2 a5 g4 e5 c4 d5 f6 h5 g5 d3 f5 h3 b3 d2 b6 d4 b7 d3 b8B h2 Nh3 e4 Nc3 a4 Rg1 h1B Nf4 e3+ Kg3 a3 Na2 Nh6 Be2 Be6 Bg4 Bc5 Qf3 d1Q Bd2 Bb6 c5 Rf8 Rb1 Qc7 g6+ Ke8 g7 Kf7 g8N Qe2 Rbe1 Re8 Rd1 Ra7 Ne7 Bg2 Qa8 Bc6 Rc1 Rb7 Qa5 Bcd7 Rc4 Ba4 Re4 Ra7 Re5 Rb7 Bc1 d2 Nd3 d1B Bd2 Kf8 f7 Kg7 Rg2 Kf6 f8Q+ Nf7 Rg1 Rd8 Rg2 Rd5 Qd8 Bc2 Qd6 Nd8 Rg1 Rd4 Rg2 Re4 Rd5 Re5 Rg1 Kg5 f6 Bd1 f7 Kf6 Nf5 Bc2 Nc3 a2 Rg2 a1Q Na2 Qc8 f8Q+ Rf7 Rg1 Qc7 Nh4 Re4 Rg5 Re5 Nf5 Qb2 Qd5 Qd4 Qf3 Qdd7 Qd6 Qe7 Nf2 Bd3 Rg2 Bc4 Nd3 Qf8 Rg8 Qg7 Qdd5 Bc8 Nf2 Qa7 Kf4 Ree7 Bh3 Qe1 Rg5 Bf1 Nd3 Qe2 Bg4 Qb7 Bd6 Qc7 Kg3 Bcd7 Bf4 Re5 Qd4 Be6 Qd6 h4+
N3B2r/1Q1n2np/n3rnR1/pP3N1P/Kb4q1/1Q2B3/3pk2r/BNR3Qq w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Kf2 Bb7 Ke1 Be4 Kd2 exf4 Ke1 f3 Na3 f4 Nb1 Bf5 gxf5 Be7 Na3 Bd6 Nb1 Bf8 Kd2 Ke7 e4 Kf6 h4 Ke5 c4 g5 Kc2 d5 Kb3 a5 b6 d3 f6 Kd4 e5 d2 e6 Ke3 h5 f2 b7 f3 f7 d4 e7 g4 e8N d3 c5 g3 c6 g2 c7 Nf6 c8Q Na6 b8Q Qd7 Qcb7 Qg4 Nc7 Bb4 Ne2 g1N f8B Ra7 Bh3 f1R Ka4 f2 Nd4 Nf3 Bg7 Ne5 Na8 Ned7 Rg1 Re1 b3 f1Q Nf5+ Kf2 Bg2 Re6 Bc6 Qfg2 Qg8 Qh1 Qc2 Ke2 Qc4 d1N Be3 Qge4 Rg6 Qg4 Qd4 d2 Qf7 Bc5 b4 Bd6 b5 Bb4 Qbb6 Rc7 Qb7 Rcc8 Qg8 Rce8 Qb2 Rf8 Qb3 Rf7 Na3 Rf8 Rc1 Rfe8 Nb1 R8e7 Bd4 Ne3 Bh6 Rg7 Ba1 Rf7 Nh4 Nf5 Be3 Ng7 Nf5 Ndb8 Be8 Nbd7 Qb2 Rfe7 Qd4 Re4 Qb3 R7e6 Qda7 Rf4 Qc5 Rf2 Qca7 Rh2 Qd4 Qgg2 Qg4+ Qf3 Qg1 Qg4
4R1N1/1b3nq1/r1Q1qBNp/Q1np2bR/3bR1p1/6nQ/P3bKPN/kB6 w - - 0 1 legal: proof: e4 c5 b4 g5 d4 cxd4 h4 a5 Ba3 axb4 Ba6 f5 exf5 g4 Bf1 b5 Bc1 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Ba6 Rh6 Bb7 Rh1 Bc8 f4 Kf7 c4 d5 g6+ Kf6 c5 e5 g7 b3 c6 b4 c7 b2 Rh4 b3 Ke2 d3+ Ke3 e4 Bd2 Qe8 Qc2 Nh6 g8Q Bg7 Qd1 Bb7 c8Q Na6 Kf2 Nf7 Qc6+ Qe6 Qe1 Nc5 Nc3 b1N Rh5 b2 Nf3 h6 Qh7 Rf8 Nh2 Ra8 Qe3 Ra7 Qh3 Ra6 Be3 d2 Bd3 d1B Bd4+ Ne5 Bc2 Nd2 Bb1 Be2 Qh8 Nf1 Qa8 Ng3 Qd8+ Kf7 f6 Bh8 Qa5 e3+ Kg1 Bg7 Ne4 Kg6 f7 Bh8 f8R Nf7 Bc3 Bd4 f5+ Kg7 Ng5 Kf6 Re8 Ke5 f6 Bc8 Bd3 Bb7 Re1 b1Q Bh7 Qd1 Bb1 Qd3 Ba1 Qh7 Bc3 Qg7 Ba1 Bc3 Nh7+ Kd4 Bb2 Bf3 Ba1 e2 Kf2 Kc4 Nf8 Bb2 Ng6 Bc1 Ne7 Bg5 Qd8 Kb4 Ng8 Ka3 Qa8 Bd2 Bd4 Bc3 Qd8 Kb2 Qa5 Ka1 Be5 Nd6 f7 Bb2 f8N Nf7 Rg1 Bc3 Ng6 e1B+ Ke3 Bd2+ Kf2 Bf4 Re1 Bg5 Re4 Be2 Bf6 Bd4+
KRq2Q2/2Pqrnn1/pN1r2q1/b4rpr/1R1p1B2/7B/k1N2QPQ/3N1B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 Bd2 Bb7 Be3 Be4 Bc1 Bg6 hxg6 Be7 Nd2 Bd6 Nb1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 Kb4 Kd5 h5 e4 f5 c5 d6 g7 h4 c6 d3 e5 a6 e6 f3 b6 f4 b7 h3 e7 f2 e8Q h2 Nc3 f3 Qc2 d2 Nd1 Rh6 Ne2 Nd7 b8N Qc8 Rb1 Ne5 Nd7 Ra7 Nb6 Re7 Nd4 Nf7 c7 Rf6 Kc6 Ngh6 g8B Nf5 b3 Bg7 Qf8 Rh6 Rb2 Ka3 b4 Rf6 Rg1 h1R b5 Rh5 Rh1 Bh8 Rh4 Ng7 Bh7 Rfh6 Bf5 d5+ Be6 Rg6 Qf5 Rf6 Qf4 Rfh6 Qh2 Rg6 Rb3+ Ka2 Nc2 Rgh6 Rhb4 Rf6 Nb2 d1Q Bf4 Qd3 Nd1 Qg6 Rb1 Qd7+ Kb7 Rf5 Be2 f1R Ka8 f2 R1b3 Rf6 Bh3 Rd6 Bd3 Rg1 Rb1 f1Q Be2 Qe1 Bf1 Qee6 R1b3 Nh6 Qf6 Nf7 Qd4 Qg4 Qf2 Q4e6 Nc8 Qef5 b6 Qg4 b7 Q4f5 Be2 Rf1 Nb6 Qc8+ b8Q Qfd7 Qe1 Rf2 Bf1 Rf3 Be3 Rf5 Bf4 Ne6 Qeg3 Bc3 Qf2 d4 Rb1 Qcg8 Qf8 Ng7 Nc8 Bd2 Rb8 Ba5 R1b4 Qh8 Nb6 Ne6 Qg7 Qhc8 Qf8 Ng7
1RQb1B2/RK3p1q/n1p2q2/1q1rNp2/2nRB3/N1n1N3/2P2PnQ/k1r2Q2 w - - 0 2 legal: proof: g4 d5 a4 b5 axb5 g6 e4 dxe4 Qf3 Be6 Qf5 Bc4 h3 Be2 g5 Bg4 hxg4 gxf5 Ke2 Kd7 Ke3 Ke6 d4 Kd5 b4 a5 g6 e5 g5 h5 g7 a4 b6 h4 b5 c6 g6 a3 b7 h3 b6 a2 Bd2 h2 Nf3 Ra5 Bg2 Kc4 d5 Na6 b8R Be7 b7 Nf6 d6 Rd5 g8N Qa5 d7 Bd8 g7 Qb5 Rd1 h1Q Bb4 Qh7 Nh6 Re8 g8Q Re7 Ke2 e3 Ng4 e4 Bc5 Re6 Na3+ Kc3+ Rd3+ Kb2 Nfe5 Re8 Qg5 Rg8 Bf8 Rg6 Bh1 Rh6 Bf3 Rh1 Qf4 Rc1 Qh2 Ne8 Qh1 Nd6 Qf1 Nc4 Rd4 Rd1 Rc1 a1Q Rb1+ Ka2 Rb4 Qb2 Ra4 Rc1 Ra5 Ka1 Ra4 Be7 d8Q Qc3 Qc8 Bd8 Ra8 Qcb2 b8Q Qc3 Nd7 Qcb2 Qh2 Qc3 Rb8 Qcb2 Rd1 Qbg7 Nde5 Qf6 Ke1 e2 Ne3 Nb6 Rd4 Na4 Kd2 e1N Bh1 Nd3 Re1 Nab2 Kc3 Ndb4 Red1 Nc4 Kb3 Qb6 Ka4 Na2 R1d3 Qb1 Rdb3 Qb2 R3b7 Qb6 Ra7 Qc5 Nd1 e3 Be4 e2 Ne3 e1N Nb5 Nb6+ Ka5 Qc4 Rc7 Nc3 Ra7 Rd7 Na3 Ng2 Raa8 Rd6 Ra7 Rd5+ Nb5 Nc5 Na3 Nba4+ Qc7 Nb2 Kb6 Na6 Kb7 Qa4 Qd7 Nc4 Qc8 Qb5+
1b1k3N/4ppR1/3q1Q2/nbPB2QB/4P3/n2qBRKb/p1N4N/2nnQ2r w - - 0 1 illegal: No possible last move, all moves rejected
6nQ/Qb5b/3Kp1P1/2N1Bb1B/q3Qp1p/1nb1P2R/kqR1B1n1/1Nr4N w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 g5 g4 c5 f4 cxd4 h4 gxf4 h5 Ra6 g5 Rg6 hxg6 Bh6 Nd2 Bg7 Nb1 Bf8 Kf2 f5 Kf3 h5 b4 d5 c4 Kd7 c5 Ke6 g7 a4 b6 a3 c6 h4 b7 d3 c7 d4 b5 Kd5 b6 Kc4 Be3 a2 Bg2 d2 Rh3 e6 Bf2 d3 Qe1 Kb3 Bf1 d1N Bg3 Nd7 b8N d2 b7 Qe8 Na6 Bb4 b8Q Nc5 Qa7 Ne3 Bh2 d1B Bg3 Bd7 c8Q Ng2 Qd8 Bc2 e3 Nh6 g8B Bc8 Ne2 Bc3 Bf7 Qa4 Bh5 Ng8 Qed1 Bb7+ Q1d5+ Kb2 Qe4 Nb3 Nc5 Rh7 Bh2 Rc7 Ng3 Bd3 Be2 Bc2 Kf2 f3 Nh1 Rc8 Be5 f4 Qf6 Bd3 Qh8 Rc6 Qc4 Bh7 g6 Rc8 Qe4 Rc6 Kg1 f2+ Kh2 f1B Kg1 Rc7 Kf2 Rc6 Kf3 Rc7 Nd2 Rc8 Rc1 a1Q Nb1 Ka2 Rc2+ Qb2 Kg4 Ne7 Kg5 Rc6 Kf6 Ng8+ Kf7 Rc8 Beg4 Bd3 Be2 Nf6 Ke7 Ng8+ Kd6 Rc7 Qf3 Bf5 Qe4 Ba5 Nd7 Rc4 Nc5 Rc3 Rd2 Rc1 Rc2 Bc3
bQ6/N6b/4b3/nBpk1p2/q1n2RrB/1q2qp1Q/2PN1PR1/RQb2KB1 w - - 1 2 legal: proof: g4 a5 d4 g5 a4 e5 h4 exd4 h5 b5 axb5 Nc6 Qd2 Ra6 Qf4 gxf4 g5 Rb6 Bd2 Nb8 Bc1 Rg6 hxg6 Qf6 Kd2 Qe7 Ke1 Qd8 e4 Ke7 b4 Ke6 g7 d5 e5 f5 g6 h5 b6 c5 b7 a4 b5 a3 b6 d3 Nc3 h4 Nb5 h3 Nc3 h2 Bg2 d4 Be3 d2+ Ke2 d1B+ Kf1 d3 Be4 a2 Nb5 d2 Bd3 Nh6 g8R Qd5 g7 Nf7 Nf3 Qb3 Na7 Nd6 Bb5 Nc6 b8B Rh4 b7 Kd5 e6 Na5 e7 Rg4 e8Q Ndc4 Qh5 Be6 Qh3 Be7 Bc7 Bg5 b8Q Bh6 Rg1 h1B Rg2 Bg5 Re8 Bh6 g8Q Bg5 Rc1 a1Q Qf8 Qaa2 Ra1 Qaa4 Qf6 Bh6 Qb2 Bg5 Qb1 Bh6 Ne1 Bf3 Bd8 d1Q Bh4 Qd2 Rg8 Be4 Nf3 Qdc3 Bd4 Qe3 Be5 Bg5 Re8 Bg8 Nd2 Bh7 Rg3 Bhf3 Rg2 Be2+ Kg1 f3 Bh2 Bf6 Rg8 Bb2 Rh8 Bc1 Rd8+ Ke6 Rd4 Ba8 Rf4 Bf1 Rg3 Bd3 Rg2 Bde4 Kf1 Bed5 Qe8+ Kd6 Bg1 Be6 Qb8+ Kd5
nq1b2Bq/K2bRp1q/1p1Bn3/2RN1N2/1BRq2kP/1Pr5/1N3Qnp/4Q3 w - - 0 1 illegal: No proof kernel
nRN4n/q2r1p1k/6p1/1nR1qNB1/Pr1n2B1/Q2Q1P2/NbR3pq/4BK2 w - - 0 1 legal: proof: c4 h5 e4 d5 exd5 b6 g4 hxg4 d4 Bf5 d6 Kd7 c5 Ke6 d5+ Kf6 b4 a5 c6 Bd7 cxd7 axb4 h4 Kg6 a4 c5 f3 e5 h5+ Kh7 h6 b5 Bf4 b3 Bg2 c4 Rh5 g3 Ke2 e4 Qd4 c3 Nh3 b4 Be3 b2 Rf5 c2 Bd2 c1N+ Kf1 e3 Be1 b3 Qc5 Qb6 d8Q Ra7 d7 Ne2 d6 Na6 Rg5 Ne7 Ra2 Nc7 Qa3 Nd4 Nf4 Na8 Ne6 Ng6 Nc3 b1Q Bh3 b2 Bg4 Qc2 Rc5 b1N Rb2 Qa5 Na2 Qh2 Re2 Nc3 Rc2 Nf5 Nd4 Nb5 Qc8 Rb7 d8N Rd7 N8c6 Qa7 Ne7 Rg8 Qb7 Nh8 Nc8 Be7 Qd5 Bf6 Qe4 Re8 Qed3 Re4 Nc6 Ba1 N6e7 Nfd4 Nf5 Bc3 Nfe7 Bb2 Nf5 Rde7 d7 Rf4 d8B Rd7 Bg5 Re4 Bd2 e2+ Ke1 Nc6 Bc3 Rb4 Bcd2 Ncd4 Bc3 Kg6 h7 Qh6 Ncd6 Qh5 Qc4 Qh2 Kd2 e1Q+ Kd3 Qe5 Be1 Qh6 Kd2 Qh1 Qcd3 Qh2+ Bf2 Qd5 Ke1 Qe4+ Kf1 Qe5 Be1 Qe4 Bc1 Qe5 Ne3+ Kh6 Bcd2 Ng6 h8R+ Kg5 Rg8 Kh6 Rb8 Nh8 Nef5+ Kh7 Nc8 g6 Bg5 g2+
1B4rK/Qr1R1r2/2NBnn2/1r2N1pk/1n1Q1b2/p4RP1/P3Rp1r/1b1B2Q1 w - - 0 2 legal: proof: c4 e5 b3 d5 b4 c5 bxc5 dxc4 f4 exf4 h4 g5 h5 Qe7 Nf3 Qe4 Ng1 Qg6 hxg6 Bg7 Nh3 Bh6 Ng1 Bf8 Kf2 a5 Kf3 b5 Ke4 h5 Ke5 f5 d4 h4 e4 h3 d5 a4 c6 h2 c7 b4 g7 Kf7 d6 Kg6 g3 b3 d7 a3 d8B b2 Be2 f3 Bf4 f2 Be7 f1N Qd4 c3 Bd1 c2 Ne2 c1R Bd6 Rh7 Nd2 b1R Nc4 Nf6 g8Q+ Kh6 Qf7 Ne3 Rf1 h1R Rf3 Ng2 Qg1 Rh4 Nd4 Rb7 Nc6 Na6 Rb1 Be6 c8Q Nb4 Qd8 Rh2 Bb8 Rc3 Qdd4 Rb3 Rb2 Be7 Re2 Bd8 Qc7 Kh5 Qa5 Bf7 Qaa7 Bg6 Ke6 Bb6 Bfd6 f4 e5 Bc7 Rd2 Bb1 Rdd3 Rh6 Kf7 Rh7+ Kf8 Rb2 e6 Rg7 e7 Rh7 Rfe3+ f3 e8R Nf4 N4e5 Rd7 Re2 f2 Re7 Rb3 Kg7 Ne6+ Kh8 Rb2 Rg7 Rf7 Rf3 Rb5 Bf8 Rb3 Nc4 Bf4 N4e5 Rbb7 Bfd6 Nd3 Rg8 R3b5 Rd8 Nb4 Bbc7 Rc8 Bb8 Rcc7 Rd7 Rg7 Rd8 Rcf7 Rd7 Rg8#
1R1Q4/5Brp/1N4nQ/1P1KrR1P/1Bp2rr1/B1NN1pkb/b3n3/Rn2b3 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 dxc4 Bh3 Qd5 Bg2 exf4 Bf1 f3 Nc3 f4 Nb1 Qf5 gxf5 Bc5 Qc2 Be7 Qd1 Bf8 Kf2 Kd7 b4 Kd6 d4 g5 h4 c5 e4 a5 f6 a4 h5 a3 f7 a2 b6 c3 b5 g4 b7 c2 d5 Ke5 d6 g3+ Ke1 f2+ Kd2 f3 Kc3 g2 Kc4 Na6 b8B Ra7 d7+ Nc7 d8Q Ne7 Q1d2 Ng6 Nc3 Bh3 Ba3 c1N Nge2 g1R Qh6 Rg4 Nf4 Ne2 Rg1 Rb7 Ba7 Nd5 Rg3 Bd6 f8N Rg7 Bb6 Be7 Ba5 Bh4 B5b4 Rhg8 Rg2 Rg5 Rg1 Be6 Bh3 f1B Rg4 Rf5 Rg5 Be1 Bg4 Bh3 Nd7+ Kd6 Nd3 Re5 Rf5 Rf8 Rg5 Rf4 Bf5 Bf7 Be6 Bg8 Rf5 Rg4 Rd1 a1R Bf7 Ra2 Ra1 Rc2 Qc8 Ra2 Nb6 Rf4 Nca4 Ndc3 Qe8 Nb1 Nc3 Nd4 Qa8 Rg2 Qc8 Ne2 Qa8 Rgg4 Qd5+ Kc7 Qd4 Re6 e5 Re7 e6 Re8 Nbd5+ Kd6 e7 Re4 Be6 Bf7 Rf4 Rf8 e8R Bg8 Rb8 Rff7 Nb2 Re3 Qd3 Ke5 Nb6 Rf5 Qd8 Bf7 Rd4 Ree4 Bd5 Rfg5 Be6 Kf4 Nd3+ Kg3 Bd5 Ref4 Re4 Nd4 Re6 Rgf5 Rf6 Re5 Rf5 Re7 Be6 Ne2+ Kd5 Bg8 Kc6 Bf7 Ba2 Re5 Kd6 Be8 Bg8 Bf7 Kc6 Bc4 Bf7 Ba2 Kd6 c4 Kc6 Re6+ Kd5 Re5+
QQn2kN1/q2r1B2/nR6/1brN2nr/2pB2R1/2PPp1Qp/R2r1B2/5nK1 w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 f5 Rh3 Bh6 Rh2 fxg4 Rh1 g3 Rh2 g4 Rh1 Bg5 hxg5 Qd4 Rh2 Qd6 Rh1 Qd8 b4 h5 f4 c5 g6 e5 f5 a5 b6 a4 f6 c4 b7 g2 Kf2 a3 d3 h4 f7+ Kf8 c3 a2 b5 h3 b6 Rh5 Be3 Qc7 Nd2 Bd7 Bd4 Ra7 Ne2 g1R Bg2 Bb5 Qe1 Ne7 Nf4 Na6 b8B Nc8 b7 Qc5 Qe3 Rd1 Nd5 Qe7 Re1 g3+ Kg1 Qd7 Qf2 e3 Ne4 e2 Nef6 e4 Ng8 Rd2 Reb1 e1N Bbe5 e3 b8Q Qc7 Be4 g2 Bg3 Qb7 Bf5 Qa8 Be6 Rd7 Qf3 Qa7 Bf2 Qb7 Rb2 Qa7 Rab1 a1N Qfg3 Nb3 Ra2 Re2 Qa8 Nd2 Rbb2 Nf1 Rb1 Ba4 Rb6 Bb5 Qab8 Rd2 Qa8 Nc2 Qab8 Ncb4 Qa8 Nc6 Qab8 Ne5 Qa8 Kg7 f8Q+ Kh8 g7+ Kh7 Qg4 Ng3 Ngf6+ Kh6 Ne7 Nf7 Kh2 Ncd6 Qfb8 g1R g8R Nc8 Qgf3 Rc5 Nfd5 Kh7 Rg5 Kh6 Ng8+ Kh7 Re5 Kg7 Re4+ Kf8 Qg2 Nh5 Qf3 Rg5 Rg4 Ng3 Kg1 Rh5 Qff4 Nf1 Qg3 Ng5 Bf7 Re2 Qbf4 Rc2 Qfb8 Rd2
Q4q1k/B1r2p2/r1pb1rpB/B1N1QP1R/n4N2/r1Pb2b1/R3Q3/2KbR3 w - - 0 2 legal: proof: g4 b5 h4 e5 a4 Ba6 axb5 Bb4 h5 Bf8 d4 exd4 h6 Bc8 Bg5 Nf6 Bh3 Nc6 Bc1 Nh5 gxh5 Ne7 Bf5 Ng8 Bg6 hxg6 Kd2 a5 f4 d5 e4 d3 b4 d4 h7 a4 e5 a3 b6 c6 c3 a2 h6 Ra3 b7 Bf5 b8B Bd6 b5 Kf8 b6 Nf6 e6 Nd5 b7 Nb6 Nh3 Na4 Ba7 g5 b8Q g6 Re1 g4 Qe2 g3 Qa8 g2 Qe5 Rg8 h8B g1B h7 Bh2 Bf6 Bg3 h8R Be4 Kd1 d2 f5 Bd3 Rh5 Rh8 e7+ Kg8 Qe2 Qf8 Bg5 Kg7 e8Q Rg8 Bh6+ Kh8 Q8e7 Bc4 Kc2 d1R Bcf4 Rd2+ Kc1 d3 Bfe3 Ba6 Beb6 Bb5 Qf1 Re2 Qee8 Re6 Nf4 Rf6 Qfe2 Ba6 Ba5 d2+ Kd1 Bc4 Q8e5 Ba6 Kc2 d1B+ Kc1 Bc4 Nd2 Bd3 Rb1 a1R Nb3 Qg7 Nc5 Rc8 Bc7 Qf8 Ba5 R1a2 Rb2 Rc7 Rd2 Rb2 Rc2 Rb6 Ra2 Ra6
1r2n3/2QB4/1bK4Q/1PNprP2/2br1n1B/n2RQR2/2pN2pp/1NRq3k w - - 0 1 illegal: No proof kernel
B2B1r1Q/r3qb2/Q2np2p/2nP4/pNN1k3/Rp2Pbr1/RN3K2/b3BR2 w - - 0 1 illegal: No proof kernel
3Bb1Nk/nR3R1b/1p1Bp3/6P1/Qp4Qq/3pR3/Pn1rBnr1/NK2b2Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 g4 Kg7 c4 d5 Kc2 h5 f4 e6 c5 h4 g6 h3 f6+ Kh6 f7 Kg7 c6 h2 c7 b6 f5 Rh7 f6+ Kh8 Na3 d3+ Kb1 d4 Qa4 d2 Nf3 d1N Nh4 d3 Bg5 Na6 Nf5 Rh5 g7+ Kh7 Ne7 Nf2 Be2 Bd7 c8Q Be8 Qcc6 Nc5 Nc2 Rc8 Rg1 h1B Rg3 Rb8 Re3 Be4 Qd5 Bf5 Qh1 Rh2 Bh4 Rc8 Bg5 Rc7 Bh4 Rg2 Bg5+ Nh6 Ng8 Bd6 f8B Bg3 f7 Be4 Bh4 Nf5 Bd6 Ne7 f8R Nc6 Rf7 Na7 Rd7 Rc6 Rb7 Qf6 Bg5+ Qh6 Bd8 Qh4 Kb2 Rc7 Rf1 Rc8 Na1 Rc6 Qa3 Na4+ Kb1 Nb2 Qa6 Rc2 Qa4 Nh3 Rff7 Rd2 Bb8 Be1 Bd6 Nf2 Ne7 Bg6 g8Q+ Kh6 Qg7+ Kg5 Qd4 Bh7 Ng8+ Kg6 g5 Bd7 Rf6+ Kg7 Qg4 Kh8 Rf7 Be8
n1K1N3/BBQRB1rp/2P2rRp/2R2Q2/qbQN3k/1n2np2/pb2P3/1b6 w - - 0 1 legal: proof: f4 c5 d4 e5 dxc5 b5 fxe5 Nf6 a4 bxa4 h4 Ng8 h5 Nc6 h6 gxh6 Ra3 Nb8 Ra2 Bb7 Ra1 Bc8 Kf2 Ke7 Ke3 f5 Kd4 d5 g4 a5 b4 a3 c4 f4 g5 a4 g6 a2 e6 Kf6 e7 Kg5 Ke5 d4 e8Q d3 g7 d2 b5 a3 c6 Qa5 c5 Qb4 c7 Ra4 b6 Na6 b7 Qb3 b8B Qd3 Qe6 Nb4 Ba7 Qb3 Qc4 Qb2+ Nc3 Bg4 c8Q Na6 Qc7 Nf6 Qc2 d1N Bg2 Ne3 Bb7 Ne4 c6 Qb5+ Nd5 Nec5 Nf6 Rg8 Ne8 Bf5 Rh5+ Kg4 Kf6 Nb3 Nf3 Bb4 Nd4 f3 Bb2 Ra5 Rd1 a1B Rd3 a2 Ba3 Be4 Ke6 Qa4 Kd7 Bb2 Rc5 Kh4 Kc8 Rf8 g8R Rf6 Rg6 Bf5+ Qd7 Nc7 Qb1 Be4 Qd8 Na8 Qc7 Rb5 Rd2 Bd5 Qf5 Be4 Nc2 Ra5 Rd7 Rb5 Nd4 Bb1 Re5 Bd2 Be7 Bb4 Bd8 Rd5 Be7 Rd6 Rc5 Re6 Rg5 Rf7 Rg1+ Ref6 Rg6 Rg7
qb2bN2/1RQB1kpB/1n3nr1/Qn2P1P1/5p1R/4p3/1BbQ1r1p/1K3N1R w - - 0 1 illegal: No proof kernel
nb1q1Q2/3N1PPp/1R6/2pR2p1/r1n1pRr1/1BB1nb1k/1BQ4N/1rK1N3 w - - 0 1 illegal: No possible last move, all moves rejected
BN6/Nn2kpB1/3R3P/p1r3N1/1R1Kqpb1/R2P2Q1/pn1rBr2/2bQn3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 bxa4 c4 d5 cxd5 exf4 b4 g5 h4 a5 e4 c5 Ke2 g4 Kd3 a3 e5 c4+ Kd4 c3 e6 c2 e7 g3 b5 g2 h6 Bh3 d3 Be6 d6 Bg4 b6 Bh3 h7 Nf6 b7 Nfd7 h5 Nc5 Bb2 c1R Nf3 g1N Be2 Nba6 b8N Nb7 Nc3 Rc2 Nb5 Rd2 Ng5 Bg4 Na7 Nac5 h6 Rg8 h8Q Na4 Bc3 Nb2 Qg7 Qc8 Rb1 Qf5 Rh2 Nc4 Rb4 Nb2 Na6 Kd7 e8B+ Kd8 d7 a2 Nb8 Ke7 d8R Qg6 Rd6 Nf3+ Kd5 Qh7 Bc6 Ne1 Kd4 Qf5 Ra4 Qg6 Ra3 Qh7 Na6 Rc8 Nb8 Rc7 Bcf3 Rc5 Rg2 Nd8 Ba8 Nb7 Qg6 Rg7 Qh5 Rg6 Qh3 Re6 Qf3 Re3 Qg3 Rf3 Bf1 Qg6 Re2+ Qe6 Re4 Rff2 Be2 Bg7+ Re5 Bh5 Ke4 Bg4 Bd4 Na4 Bb2 Ke8 Ba1 Qe7 Ree6 Bb2 Rb6 Bc1 Rb4 Kd8 Bg7 Nb2 Kd4 Qe8 Rg6 Qe6 Rf6 Ke7 Rg6 Qf5 Rd6 Qe4+
4Kn2/1k2NpRn/1B2pbpr/1N1n1rbN/P1b3PQ/1R3Q2/3p1Q2/Bq2B3 w - - 0 1 illegal: No proof kernel
1R6/2np1pQ1/1Pr2rp1/kBR5/1r2bpKb/n3QBP1/B1nN1qN1/2R2Q2 w - - 0 1 illegal: No extended proof kernel
K1N1r3/1r1pP3/4Qp2/QB1b2p1/RB1Pq1Q1/2R2p1b/2r1R3/1b1NBknn w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 gxh5 b5 c3 b3 Kf2 b2 Ke1 b4 Qc2 b3 Qd1 Bb4 cxb4 Ra6 Kf2 Ra5 Ke1 Ra8 Kf2 Ke7 h4 Ke6 a4 Ke5 e4 Kd4 h6 g5 e5 c5 a5 c4 h5 f6 e6 c3 b5 c2 b6 Qe7 h7 Nc6 b7 Qb4 b8B Ra6 e7 Qc3 Ra4+ Qc4 Na3 b1B Nb5+ Ke4 Qg4 b2 Nd6+ Kd4 Nh3 Ne5 Rh2 Ra7 a6 Ra8 a7 Bb7 Nc8 Ba2 Bd6 b1B Bb4 Rb8 a8Q Qe6 Qa5 Bb3 Bb5 Nc6 Kf3 Bc4 Nf2 Nh6 Nd1 Kd3 Re2 Rg8 h8Q Re8 Qg8 Nf5 h6 Ng3 h7 Nh1 h8R Qf5 Bca3 c1R Rh3 Rc2 Qe6 Ba6 Bb2 Rb7 Bd4 Qh7 Bf2 Qh4 Be1 Ne5+ Kg2+ Nf3 Rg3 Kd4 Rh3 Ng1 Rc3 Ng3 Kf2 Bd5 Rc4+ Kd3 Rc5+ Rc4 Rc6 f3 Rc7 Kc2 Ke3 Nh1 Rc6 Rc5 Kd4 Kc1 d3 Rc2 Rc3 Qh7 Kc5 Qe4 Bc6 Bb5 d4 Bbc4 Bb5 Bd3 Rf2 Bf1 Re2 Bh3 Bh4 Rc7+ Kb6 Rb7+ Ka6 Rb8 Ka7 Rb6 Re1 Rb7+ Ka8 Kd2 Bg3 Qf4 Re5 Qe4 Bh4 Bc4 Be1+ Ke2 Rf5 Kf1 Re5 Qd5 Ree3 Qe4 Re2 Bd5
7k/Np6/Bb1n1Nn1/QPQrr1rp/2RqP2b/BR2p3/6pK/B1bNR3 w - - 0 1 illegal: No proof kernel
b1R4q/q3N3/3P4/n1bBK1kP/1N2Rnn1/2p1Q1BR/p2p1pQB/1N2r2r w - - 0 1 illegal: No proof kernel
8/N3n3/1prQrn2/pR1B1PNN/qq1R1BkB/PQb5/2pp3n/1K3Qb1 w - - 0 1 illegal: No possible last move, all moves rejected
Q1NR3q/qRB3P1/6bQ/prk2B2/5b1r/p1K1ppNR/1nNP2r1/1B1n4 w - - 0 1 illegal: No proof kernel
6R1/1Q2KP1Q/2Npq1N1/Rp3B1N/4bBPp/bB1r1R2/2np4/1kqbr2n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 b5 Ke4 e5 Kd5 h5 a4 e4 g4 h4 c4 e3 f4 e2 f6 Kg6 a5 e1Q f7 d3 c5 d2 a6 Bg7 Kd6 Qg3 c6 Ne7 a7 Qg8 c7 Bf8 Nc3 Bb7 c8B Qe3 Qc2+ Be4 Nd5 Nbc6 Bc4 Nd4 Ra5 Qa3 Qd3 Nc2 Bb3 Rh7 Ne2 Nf5+ Kc7 Rh6 Kd8 Ng3 Rf1 Nh1 f5+ Kg7 Ng3 Re6 g6 Re7 Nc3 Kf6 g7 Ke5 f6 Bf3 Nd5 Bd1 Qg6 Kd4 Nh5 Re1 Ne7 Kc3 Nc6 Bc5+ f8N Qe6 g8R d6 f7 Qb2 Qh7 Qa1 Ba3 Qc1 Ng6 Kd3 Rf6 Kc3 Bb2+ Kd3 Ba4 b3 Be5 b2 Bb3 b1B Bf4 Ba3 Rf5 Kc3 Rf6 Kb2 Rf5 Rb8 a8Q Re3 Rf6 Rd3 Qa6 Rb7 Qb6 Re7 Qb7 Qd5 Bf5 Re1 Re6 Ka1 Re3 Qe6 Rf3 Ba2 Ba4 Bd5 Bb3 Kb2 Nge5 Be4 Ng6 Qc8+ Ke7 Kb1 Nce5 Qc4 Nc6 Qe6+
5k2/1r2Np1Q/1b4pR/Qb2pR1n/1PnN1N1R/2rp2q1/1q1P1Q2/2nBK1B1 w - - 0 1 illegal: No proof kernel
Rb3N2/1kB1pQ1K/3b4/BpprN1Q1/2p1Bqnn/PPQq1r1N/3R3n/8 w - - 0 1 illegal: No proof kernel
1nR1n2Q/1prQ2r1/5Bpb/NK4P1/1p6/NBQ5/P1n1b1pB/1Nkqq2R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 c4 d5 cxd5 Ra7 g5 Ra8 Qg4 hxg4 Na3 Kf7 Ke2 c5 Kd3 e5 Kc4 g6 d4 g3 f4 g2 h4 Nh6 d6 Qc7 d7 Bd6 d8B Bd7 h5 Qa5 d5 Rh7 f6 Bf8 d6 Ke6 f7 Kf5 Ne2 Ke4 f5 Ng4 f6 Nc6 h6 Qa4 Bf4 Rc8 Bh2 Ke3 Rc1 Kd2 Nc3 Nb8 Be2 Bc6 d7 Bf3 Bd1 Qc2 Kb5 c4 Be7 Qd3 d8N e4 Bb3 e3 Nc6 e2 Bd8 e1N Na5 Be2 Be7 Bg7 f8Q Qd4 f7 Nf6 Qd8 Ne8 f8Q Qd6 Qg8 Qd3 Na4 c3+ Qc4 c2 Nc3 Bf8 Bf6 Rf7 h7 Bh6 h8Q Rg7 Ra1 c1Q Qd7 Qb1 Qf7 Qg3 Qd7+ Qbd3 Rb1 Qd4 Rb2+ Kc1 Ncb1+ Qgc3 Rd2 Rc6 Rb2 Qd1 Rd2 Rc8 Rd5 Rc6 Rc5 Nc2 Qcd3 Qce1 Rc3 Rd6 Rc8 Rc6 Qc4 Rc7 Qcd3 Bg4 Qc3 Be2+
3n1r2/p2R1B1b/pbPN4/3RBN2/1q2n3/K1RPQ1Qn/1BN1pp1r/1q3k2 w - - 0 1 illegal: No proof kernel
2NqB1br/4BbR1/3n1Prp/3N1KR1/2Bp1Nnp/1R2p2P/k1r3QQ/7r w - - 0 1 illegal: No proof kernel
BBb1Qr2/1rR2rbQ/N1p1p3/P5R1/1pR4p/1NB1nrP1/6k1/KQ4qn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 Kf6 Kc2 h5 Kb2 b5 a4 e6 f4 b3 d6 h3 g3 b4 d7 h2 a5 h4 d5 Be7 d6 Qf8 d8B Qh6 d7 Qg5 Nf3 Nh6 Bd2 Qh5 Bg2 Ra7 Bc3+ Kf7 f6 Kg6 f7 Kf5 f8Q+ Kg4 f5 Ra8 f6 Qc5 f7 Nc6 Nbd2 Nf5 Qb1 Ne5 Qe8 Qg1 f8Q Ra7 Ne1 Rb7 Nd3 Bf6 Nc5 Ne3 Qh6 Rf8 Qhh7 Bg7 Na6 Rf7 Ra2 Nd3+ Ka1 Nf2 Rc2 Rf8 Be4 Kh3 Be7 Rf3 d8R Kg2 Rd5 b2+ Ka2 Bh8 Bd6 Bf6 Rg5 Bg7 Bg6 Rf7 Nb3 Rf8 Be4+ Rf3 Qa1 b1R Bde5 Rd1 Qb1 Rd7 Ka1 Rf7 Rc1 Qe1 Rf1 h1R Rc2 Qd1 Bc6 Qd4 Rfc1 Rf1 Bf4 Rb8 Ba8 Rb7 Rd1 c6 Bb8 Qa7 Rd7 Rf8 Rc1 Nh1 Rc7 Qc5 Bf6 R1f2 Rc4 Qa7 Bb2 R3f7 Be5 R2f3 Bc3 Qd4 Qg8 Qd1 Qh7 Qg1
B6Q/2pp1R1n/4b2R/B1n1N2b/4NB2/bKN1rpQ1/PpQ2Prb/k1q5 w - - 0 1 illegal: No possible last move
4nN1r/PBbK4/2pn3k/R1Pq1Qn1/1R2rn1p/3N3b/B2pB1p1/1QR3Q1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 hxg5 f6 g6 Ra4 g7 Ra8 g4 Bc5 g5 Bd6 g6 Bf8 Bg5 fxg5 Kd2 b5 Ke3 d5 Kd4 h5 c4 g4 a4 g3 f4 h4 e4 b3 f5 b4 c5 b2 e6 b3 Ke5 d4 a5 d3 f6 d2 f7+ Ke7 a6 Rh7 a7 Ba6 Nc3 b1N Nf3 b2 Nb5 Na3 Be2 b1N Ne1 Rh6 Nd3 Qd7 Nd4 Nf6 g8Q Nc3 g7 Ne8 Qb1 Nd5 Rc1 Nb5 Ra5 Nf4 Kf5 Qd5+ e5 Kd8 e7+ Kd7 Ne6 Nc6 Rf1 Bc8 Rc1 Nf6 e8R Rh8 Rd8+ Ke7 Rd6 Nd8 Rb6 Ne8 Rb7 Kd7 Rb8 Bd6 f8Q Nf7 Rb6 Nc3 Rb4 Ng5 Qf6 Rb8 Qg6 Nce4 Nf8+ Kd8+ Q8e6 Rb6 g8B Rc6 Kg4 Rb6 Qef5 Ke7 e6 Rb8 Bf7 Ra8 Qg7 g2 Qd4 Be5 Qe3 N4d6 Qg1 Ng7 Bg8 Ke8 e7 Rb8 Rb3 Rb4 Be6 Re4 Rb4 Qb7 Ba2 Qd5 Qd7+ Kf7 e8B+ Kg8 Qf5 c6 Bd7 Nge8 Be6+ Kg7 Bd7 Ba6 Bc8 Ndf7 Bb7 Bc7 Qe5+ Kh6 Kf5 Ng7+ Kf6 Nd6 Ke7 Nge8 Kd7 Bc4 Qf5 Bb3 Qh3 Bc2 Qf5 Bd1 Bf1 Bg4 Be2 Bh3
1B1r1R2/p1bnb1b1/1nkNr1R1/4Q3/PP1Q1p1B/1b1pB1R1/Q1q2p2/2NK4 w - - 0 1 illegal: No possible last move, all moves rejected
B5qq/r2r4/1QRp1n2/1NP2KRN/2kBQ1rp/p2b3P/1b1p2b1/5NQB w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Bg2 Nc6 Bf1 Nce7 Kd2 exf4 Ke1 f3 Ra5 f4 Ra1 Nf5 gxf5 Bb4+ Nc3 Bc5 Nb1 Bf8 Kd2 Kf7 Kd3 g5 Ke4 h5 c4 a5 b4 g4 h3 d3 b6 d2 c5 a4 b5 h4 f6 Ke6 f7 d6 b7 g3 b8Q f2 b6 f3 b7 g2 Nc3 Rh6 Bb2 Ra6 Qa8 Rc6 b8Q Rg6 Nb5 Rg5 Qb6 Qe7 Bd4 Bg7 f8N+ Kf7+ Ne6 Qf6 Nf4 Ke7 Nh5 Ke6 e3 Rg3 Ne2 g1Q Bg2 f1R Rh2 f2 Bh1 Rc7 Rg2 Rg5 Neg3 Rd7 Qb1 Rd1 Nf1 Ba6 Ra3 Rg6 Rg5 Qd8 Kf4 Nf6 e4 Qh8 e5 Re1 Rb3 a3 Qae4 Bb7 Rb4 Bd5 Qd1 Bc4 Ra4 Bd3 Ra7 Re3 Rc7 Rg3 Qb1 Rh6 Rc6 Rh7 Ne3 Qg2 Qg1 Ra7 Nf1 Rd7 Qe2 Kd5 e6+ Kc4 Qe4 Rg4+ Kf5 Qg3 e7 Qg2 Nh2 f1B e8B Qg3 Bg6 Bg2 Nf1 Qg8 Be8 Qe5+ Kg6 Ra7 Bd7 Qee8+ Kf5 Qh8 Bc8 Qeg8 Bd7 Bf8 Bc8 Rhd7 Bb7 Be7 Ba8 Bd8 Qa6 Ba5 Qb7 Bc3 Qb6 Bb2
7r/P1R2p1Q/2B2q1b/p1nq3q/PNb2p1p/R2NQRBN/2QK4/1bn4k w - - 0 1 legal: proof: h4 e5 b4 g5 c4 gxh4 f4 exf4 b5 d5 cxd5 a5 Rh2 b6 Rh1 Ra6 bxa6 b5 g4 Kd7 e4 Kd6 d4 c5 a4 h5 e5+ Ke7 d6+ Ke6 d7 Kd5 g5 Ke4 a7 c4 d5 c3 g6 c2 d6 b4 g7 b3 e6 h3 e7 b2 e8Q+ Ne7 g8Q h4 Ra3 h2 Qh7+ Ke5 Bg2 Na6 Nh3 Qc7 d8N Qc3+ Nd2 b1B d7 Bh6 Bc6 Nc5 Rf1 Ba6 Rf3 Bc4 Bb2 Qd4 Nb3 c1Q Bc3 Qc2 Bd2 Qf5 Qc2 Qh5 Nc1 Qd6 Kd1 Qf6 Be1 h1Q Nd3+ Kd4 Kc1 Nd5 Kd2 Nc3 Bg3 Na2 Nb4 Qg1 Nb7 Nc1 d8R+ Qd5 Rc8 Qg2+ Rf2 Qgf3 Rc7 Qfh5 Rf1 Ne6 Nc5 Ke5+ Ke1 Kd4 Ncd3 Ke3 Rh1 Kf3 Kd2 Kg2 Rf1 Nc5 Rf3 Kh1 Qe2 Na6 Qe3 Nc5
8/PR3N1r/pb1RBBqQ/4n2N/3rpbpp/1K2N1qb/5r1P/QRB4k w - - 0 1 illegal: No proof kernel
1kn3q1/1B2p2Q/KnQR3p/pp2PNB1/3R2qN/N4bnR/P1b4r/3B3q w - - 0 2 legal: proof: c4 a5 g4 g5 d4 f5 b4 b5 h3 c5 d5 Ra6 h4 cxb4 c5 Rc6 dxc6 Bh6 Qd2 fxg4 Qd1 g3 Be3 g4 Bc1 Bg5 hxg5 Bb7 Ba3 Ba6 Bc1 Bc8 Kd2 d5 Kd3 g2 f4 g3 e4 h6 f5 b3 f6 d4 f7+ Kf8 c7 b2 g6 Nc6 e5 Qd5 Qc2 Qe6 Na3 b1B Rh3 Na7 c6 Qg4 Nf3 g1N Nh4 g2 Be2 Nf6 Bg5 Rg8 Bd1 Bb7 c8N Nd7 c7 Bf3 Nd6 Ne2 c8B g1Q Bb7 Nc8 Ndf5 Ng3 Ne3 Kg7 f8R Ndb6 Rf4 Qg2 Nef5+ Kf8 g7+ Ke8 Re4 Kd8 Rf4 Rf8 g8Q Qh1 Qh7 Qg1 Kd2 d3 Kc3 Kc7 Rd4 d2 Qe4 Bc2 Qc6+ Kb8 Rb1 Bg2 Rbb4 Bge4 Rd6 Bf3 Rf4 Qh1 Kd4 Rd8 Kc5 Rd7 Be2 d1Q Rfd4 Qb1 Bd1 Qb3 Ng2 Qf7 Ngh4 Qg8 R6d5 Qf1 Rf4 Qh1 Rd2 Rd3 Re4 Re3 Rd6 Re2 Rb4 Rh2 Rbd4 Nc4 Ba8 Na7 Bb7 Nb2 Kb6 Nc4+ Ka6 Nc8 Rd2 N4b6 R2d3 Qh5 R3d4 Qg4
1q3R2/4pK1Q/Pq1Bb3/1r2P3/k1n2pN1/B1Q1b1p1/BRnpRN2/2bQq3 w - - 0 1 legal: proof: f4 c5 g4 g5 d4 b5 dxc5 h5 b4 a5 Qd5 axb4 Qd4 Ra6 Qd1 Rg6 Ba3 hxg4 Bc1 g3 Na3 g4 Nb1 Rg5 fxg5 Bg7 Bg2 Bh6 Bf1 Bf8 Kd2 d5 Ke3 Kd7 Kd4 Kc6 Ke5 f5 h4 b3 a4 f4 c4 d4 e4 g2 a5 b4 g6 b2 g7 b3 a6 g3 h5 d3 h6 d2 h7 Qd7 Nc3 b1Q Nd5 b2 Nh3 g1B Ne3 Qb7 Ng4 Bf2 Rh2 Be3 Nhf2 Qb4 Ra2 Nh6 g8Q Bb7 Ke6 Nf5 Kf7 Kc7 c6 Kb6 c7 Nd4 c8R Bg7 Rf8 Nc2 c5+ Kc6 Bg2 Kb5 c6 Bc8 c7 Nc6 Bh1 Bd7 c8Q Na5 Qc3 Nc4 Bf3 Bf6 Qg6 Rg8 h8B Be5 Qf5 Rg5 Qh7 Qa5 Be2 Qb6 Bf3 Bd6 Be5 Ba3 Bd6 Ka4 Rg2 Rd5 e5 Rb5 Bd5 Qa1 Rh2 b1Q Rg2 Qb4 Rb2 Qb8 Nh1 Qa5 Re2 Qab6 Nhf2 Na5 Ba2 Nc4 Rb3 Bf5 Bb2 Qb1 Ba1 Bc1 Bb2 Nd4 Bba3 Be6+ Kg7 Qe4 Rb1+ Nc2 Rb2 Qh1 Kg6 Qe1 Kg7 Bc8 Kf7 Be6+
1R1N2Rq/2p5/3p1B2/PQ3NKp/1r1QB3/1Qqnn2p/nRbP4/1Nk3rq w - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 exf5 g5 c3 gxh4 Bb5 b3 Bb2 Bg7 Ba4 b5 Ba3 b4 Bc1 b2 Bb5 b3 Bf1 Be5 Rh3 Bd6 Rh1 Bb4 cxb4 Ra7 Rh3 Ra6 Rh1 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 a4 h5+ Kg5 e5+ f6 h3 g4 d6 f5 Be6 a5 Qe8 b5 Rh6 f7 Na6 f8N Qf7 f6 Nb4 b6 Bf5 b7 Rb8 Ra2 Qc4 f7 Nf6 Ne2 Kd3 Ne6 e4 f8Q e3 Bg2 Nfd5 Nd8 Qc3 Nd4 e2 Qh8 e1N Bf3 Bh7 Nf5 Ne3 Qe2+ Kc2 Qb5 Re6 Qd4 Ned3 Rg1 Rh6 Be4 Rg6+ Kh4 Rg8 g5 Rg7 g6 Rg8 Ra4 Na2 g7 Bg6 Rg3 Kd1 Rb4 Bh7 Na3 b1Q Bb2 Qa1 Nb1 Bg6 Kg5 Kc2 Ba3 b2 Rb3 Kc1 Rg2 Rf8 g8Q Rf7 Bc5 Rd7 Rb4 Rg7 Qb3 Rg8 Qdd5 Qh8 Bd4 Rg7 Bf6 Rg8 Nc3 b1Q Qd4 Qc2 Nb1 Qac3 Nc6 Qd1 Nd8 Qh1 Rg4 Ra8 b8R Ra6 Q3c4 Rb6 Rb2 Rg7 Qbb3 Rb4 Qb5 Bh7+ Kh4 Re7 Rg8 Rg7 Q5a4 Rg1 Qb5 Bg6 Bf3 Rc4 Ng3 Nc5 Kg5 Bc2 Ba8 Nd3 Be4 Re1 Nf5 Rb4 Be7 Rf1 Bf6 Rg1+
q3n1NN/7B/2b2RRR/4p1Br/rq1bQK2/pbQQP2P/p1B2pbk/8 w - - 0 1 legal: proof: f4 b5 g4 c5 d4 cxd4 a4 bxa4 f5 h5 gxh5 e6 f6 Nc6 Ra3 Nce7 Rc3 Qc7 Rb3 Kd8 Ra3 Qb6 fxe7+ Kc7 Ra2 Kc6 Ra1 Qd8 Kf2 Kd6 Kf3 Ke5 e8B d5 c4 a5 b4 f5 b5 g5 h6 a3 h7 d3 h3 d4 b6 d2 c5 a2 c6 d3 b7 f4 b8R a4 c7 a3 Nc3 Bg7 Nd5 Bb7 c8Q Nf6 Qcc2 Bc6 Bg6 Ne8 Rh2 Ra4 Rf2 Qa5 Qc4 Qa8 Qe4+ Kd6 Qc2 d1B Ne7 d2 Qd3+ Bd4 Ng8 Bb3 Kg4 d1B Nf3 Bdc2 Nh4 f3 Kg3 g4 Bg5 Bb1 Kf4 g3 e3 g2 Be2 g1Q Bd1 Qe1 Bc2 Qb4 Bf5 Kc5 Ng6 Kd6 Rb7 Kc5 Rf7 Kd6 Rg2 f2 Rf6 Kc5 Rg4 Kd6 Rh4 Kc5 Bd1 B1c2 Rb1 Bbd5 Rh6 Bcb3 Bc2 Kd6 Qf3 Be4 Rg1 Kd5 Qfd1 Bf3 Rg4 Bg2 Qe4+ Kc4 Rg3 Kc3 Qf1 Kd2 Qfd3+ Ke1 N8e7 Rf8 h8Q Rg8 Qg7 Rh8 Ng8 Rh7 Qd2+ Kf1 Nh8 Kg1 Qdd3 Kh2 Qc7 Rd7 Bh7 Rd5 Qa5 Re5 Qc5 Rd5 Qcc3 Rda5 Bh4 Rc5 Rgg6 Rh5 Bg5 e5+
1b1k2n1/qb3b2/1p2n1N1/2QPB1b1/1B2QNpR/1PK2B2/q2ppN2/1r1R3R w - - 0 1 illegal: No proof kernel
B1rBkN2/2p1nn2/1P3p1q/1RnR1QQ1/nb3B2/2P1N1pK/bN2Qp2/1q6 w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 h5 e4 e5 g4 hxg4 f4 exf4 d5 Ra6 e5 Re6 dxe6 Be7 Kd2 Bd6 Ke1 Bf8 Kf2 d5 Kg2 g5 h4 g3 b4 a4 e7 d4 h5 a3 h6 a2 c3 g4 b6 d3 b7 d2 h7 Bh6 b5 Nf6 b6 Ng8 Ne2 Be6 Qc2 d1N Qf5 Qd2 Na3 Bg5 Rb1 a1Q Nc2 Qd4 Rb5 Qc5 Ne3 Bc8 Rh5 Nd7 b8N Qd6 Bd2 Nb2 Nc1 Bf6 Nd3 Na4 Nb2 Ndc5 Nd7 Qb1 Nf8 Be6 Be2 Bb3 Bf3 Ba2 Ba8 Bg5 Bc1 Qh6 Bd2 Nf6 Bc1 Nd5 Bd2 Rg8 h8B Bh4 Bf6 Rh8 Bc1 f3+ Kg1 g2 Kh2 g3+ Kh3 g1N+ Kg4 f2 Qd3 Qg7+ Ng6 Rg8 Qe2 Kd7 e6+ Kd6 e8Q Nd3 e7 Nf3 Kh3 Qh7 Ng2 Nfe5 Qf8 Kd7 Bf4 Qh6 Ne3 Bg5 Qg7 Rc8 e8Q+ Kd6 Bd8 Be7 Bb7 f6 Ba8 Ke6 Qh7 Nf7 Qeg8 Kd7 Nf8+ Ke8 Qgg4 Bd6 Qh4 Ne7 Rhd5 Ba3 Qf5 Ndc5 Qhh5 Bb4 Qh4 Qg6 Qhg5 Qh6+
6B1/ppN3q1/4rQ1B/K1RpB1q1/Q1p3N1/Pbb1P1Qb/1k1rRn2/4b1N1 w - - 0 1 illegal: No proof kernel
1N1qK2R/1pq1N1p1/P2Rb1r1/3qb1Q1/2p1Q3/1B2q1n1/1PpB1r1B/1k3N1R w - - 0 1 illegal: No possible last move, all moves rejected
Bb1n1Bbk/2Rbbqpp/b5pB/6q1/R3K2P/rQ1Q1NP1/4Q2p/2R3N1 w - - 0 1 illegal: Other
1N1KQ2r/1N1ppr1R/1nNr1B2/3P2p1/k3rRP1/8/pQ4nr/B1r1b1QB w - - 0 1 legal: proof: b4 c5 a4 f5 c4 b5 h4 bxa4 e4 fxe4 h5 g5 b5 Ba6 b6 Bb5 cxb5 Qc8 Bc4 Qc6 Bf1 Qg6 hxg6 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 a5 Ke3 h5 g4 h4 d4 c4 f4 a3 b7 h3 g7 a4 f5 h2 b6 c3 f6 c2 f7+ Kd8 d5 Nf6 Kd4 e3 Kc5 e2 g8Q e1R Ne2 Nh5 Bb2 Ra6 Nd4 Nc6 Nd2 Na7 b8Q+ Nc8 b7 Rd6 Ne4 Nf4 Bg2 Re2 Qg6 Bg7 f8B Bf6 Rf1 h1R Bg7 R1h4 Ra2 c1R+ Kb5 R4h7 Nc5 Re4 Bh1 Rc2 Qb1 Rd2 Qa7 Kc7 Qe8 Be5 Bf6 Rf7 Rf3 Rc2 Rh3 Rh2 Rh7 Ng2 Qg1 Bg3 Qb6+ Kb8 Ka5 Be1+ Qb4 Kc7 b8N Bg3 Nb7 Bf2 Qd2 Be1 Kb4 Kb6 Kc4 Re2 Ndc6+ Re3 Kd4 Kb5 Bc3 Re2 Qc1 Ree6 Rf2 Re2 Rf4 Re4+ Kd3 a2 Bcd4 a1R Bde5 Ra2 Ba1 a3 Qc2 Re2 Kd4 Rb2 Qc1 Rb1 Qb2+ Ka4 Kc4 Re4+ Kc5 Na7 Kb6 a2 Kc7 Nc8 Kd8 Nb6 Qg8 Rd1 Qe8 Rc1
B1Q1N2R/2Npqp1n/5p2/3r1R2/4r2P/QpkpbR2/2BqP3/1bQ1n1BK w - - 0 1 legal: proof: f4 c5 b4 h5 d4 cxd4 g4 a5 gxh5 Nf6 bxa5 Ng8 f5 Nc6 f6 exf6 Bh3 Nb8 Bg2 Ba3 Bf1 Bf8 Kf2 Ke7 Kg2 Ke6 c4 Ke5 a4 g5 h4 b5 h6 g4 c5 g3 h7 b4 a6 b3 c6 Bg7 a5 Qc7 a7 Bb7 a6 Ne7 Nc3 Nd5 Nh3 Nb4 Be3 Qa5 Qc1 Nc2 Nb5 Bh6 Nf2 Qd2 Ne4 Re8 c7 Nc6 h8R Ne7 c8Q Ng6 Ra5 Nf8 Bg1 Nh7 Rh3 Ne1+ Kh1 Be3 Bg2 Bd5 Ned6 Be4 Bf3 Bb1 Be4 Rb8 Nc7+ Rb5 a8Q Rd5 Bc2 d3 a7 Kd4 Rb5 Re4 Nde8 Kc3 Ra5 Rdd4 Rf5 g2+ Kh2 Rd5 Rhf3 Ra4 Qab7 Rf4 a8B Re4 Qa6 Rc5 Qaa3 Rd5 Bf2 g1Q+ Kh3 Qg8 Kh2 Qg3+ Kh1 Qe5 Bg1 Qe7
QQ2q2N/2r2p1K/2b5/1B2R3/1p1nNPRB/1np1kP1r/1B2pp1r/1Nn1R3 w - - 0 1 illegal: No proof kernel
6K1/1N2Qp1B/3prpp1/2BprR1Q/6P1/qNP1R1n1/B1k1bqQ1/1nN2n2 w - - 0 1 legal: proof: h4 b5 f4 g6 d4 b4 d5 b3 f5 c6 h5 cxd5 f6 exf6 h6 Bg7 hxg7 Qc7 axb3 Ba6 b4 Qd8 b5 Bc8 Kf2 Ke7 Ke3 Kd6 Kd4 h5 e4 a5 b4 a4 b6 h4 b7 h3 c3 h2 b5 a3 e5+ Ke6 b6 Kf5 e6 a2 e7 Rh4+ Kc5 Ke4 Kd6 Ra6 e8Q+ Ne7 g8B Ra5 Bc4 Ra3 Qh5 Nc6 b8Q Ra6 g4 Bb7 Be3 Ra3 Bc5 Ra6 Ne2 Ne5 Rf1 h1N Bh7 Nf3 Nc1 Nd2 Rf5 Ng3 Qc7 Bc6 b7 Ngf1 b8N Bb5+ Nc6 Rh3 Qb6 Re3 Na5 Qc8 Bb3 Be2 Nb7 Qa8 Qf8 Qa7 Bc4 Ra3 Qb2 Ra6+ Kc7 Rb6 Kd8 Re6 Ke8 d6 Bb3 Nc6+ Qe7 Nd4 Kf8 Qb6 Na3 Nb1 Kg8 Qa7 Nc2 Qa3 Rf2 Nf5 Nd4 N5g3 Rf5 Re5 Qd2 Qb2 Qe1 Qd2 Qf2 Qe1 Qg1 Qf2 Bc4 Nbd2 Rb1 a1Q Ndb3 Qa3 Rb2 Nb1 Rd2 Bd1 Rd3 Re2 Rdf3 Re3 Qg2 Be2 Nd4 Re6 Ba2 Re5 Ncb3 Kd3 Nc1+ Kd2 Ndb3+ Kc2 Qe8 Re6 Qe7 R3e4 Re3 R4e5
Kr2B1QR/N6p/pR1Bn1R1/rQp1p3/N2pn1Pq/7r/QNP2q2/4k1b1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 d5 gxh4 Bd2 Bb7 Bc1 Bc6 dxc6 Qb6 Nd2 Qc7 Nb1 Qd8 Kd2 Kf7 Kc3 Kg6 Kc4 Kf5 Kd5 d6 f4 e3 g4+ Kf6 b4 e2 b6 e1Q b5 a6 c7 h3 c8N h2 b7 Qea5 f5 Nd7 Kc6 Ke5 b8Q Ke4 Kb7 d5 b6 e6 f6 d4 f7 Qc3 Nd2+ Ke3 Bb5 Kf2 Ne2 Ngf6 Nc4 Qb2 Na7 Qc3 Bf4 Qe1 Nb2 Ne4 Rb1 Bd6 f8R Qh4 Nc3 Be5 Re8 Nf8 Nca4 Qd2 Re1 h1R Qc8 Bb8 Bd6 Rh3 Rd8 Rg8 Be8 Rg7+ Qd7 Bc7 Qb5 Qe3 Qdd3 Rc8 Qdb3 Rb8+ Kc6 Rb7 Qa2 Rf7 Rh1 Rff3 Rb8 Qd2 Ra8 Rd3 Rhf1+ Ke2 Rf6 Qde1 Rg6 Qef2 Rd8 Kd2 Ra8 Ra3 Rc8 e5 Ra8 Bd8 Rb8 Ne6 Rc8 Rf7 b7 Bg5 b8Q Bf4 Qa8 Bh2 Kb6 Bg1 Kc6 Rf5 Kb7 Rf7+ Kb8 Rg7 Q8d5 Rb7+ Ka8 N6g5 Qg8 Ne6 Nc3 Ra5 Nca4 Re7 Rb8 Rc7 Rb6 Rb7 Rf1 Qe2 Rf8 Ke1 Qf7 Qf1 Rh8 Qff2 Qg8 Rb8+
2nKbr2/1pqnB3/1N1Q1pp1/r1PQ1RR1/rP4qB/p3pBN1/N4k2/2R5 w - - 0 1 illegal: No proof kernel
3BR3/1r2pBN1/p2nR3/PrnK3Q/N1rQPQbb/Bp3p1k/3p4/R1n5 w - - 0 2 legal: proof: c4 h5 f4 g5 d4 d6 b4 Na6 c5 Nf6 b5 Ng8 b6 Qd7 bxc7 gxf4 g4 hxg4 d5 Qc6 dxc6 Nb8 Kd2 b5 Kc3 f5 Kd4 Kf7 h4 Kf6 a4 d5 e4 f3 a5 b4 h5 f2 h6 g3 h7 b3 Rh4 a6 Bc4 f1R Nf3 g2 Ba3 g1N Ng5 f4 Ne6 f3 Ng7 Kg5 Rh6 Kg4 Re6 Kh3 Nc3 Ra7 Na4 Rb7 Qd2 Rf2 Qf4 Nf6 Ke5 Rg8 h8B d4 Bd5 Bd7 c8Q d3 c7 Rc2 c6 d2 Qd8 Ne2 c8Q Rc4 c7 Nc1 Qe8 Rb5 Qcd8 Rb7 Qg6 Ne8 c8R Rb5 Qb6 Nd6 Re8 Bc8 Qd4 Rb7 Nh5 Bh6 Ng7 Bg5 Qgf7 Bh4 Qh5 Rc2 Bc4 Nd7+ Kd5 Nc5 Nf5 Ra7 Be5 Rg5 Ng7 Rc3 Be2 Rb7 Bc4 Nf5 Bc7 Nd6+ Kc6 Rf5 Bd8 Rc2 Rf6 Re5 Bf7 Rc4 Rh6 Bg4 Re6 Rd5 Qf2 Rd3 Qd4 Rdc3 Kd5 Rcb4 Qg6 R4b5 Qh5 Rc4
Q2QQ1q1/1prb1r2/1rpkBRN1/3Np1p1/K3BP1p/2R1P3/pnR1n3/4B3 w - - 0 1 illegal: No proof kernel
1RB2N1n/r5pq/2pN2Pn/B1bQ1Br1/4b1R1/k1P3Qb/rNQ1Kr2/6rn w - - 0 1 illegal: No proof kernel
k1b1R1Nn/nNr1n3/2p4K/2rQ1Q1q/2BbR1r1/1pP2rr1/1Pb4B/3R2QN w - - 0 1 illegal: No proof kernel
rr2QKN1/1nR3pq/2Npr1B1/2B5/kN2bq1Q/2bPb1r1/1RRn1BP1/4r3 w - - 0 1 illegal: No proof kernel
r1rQr3/1R2Bq1Q/k2p1b1b/3PB2Q/4b1p1/qb4P1/N2NKNn1/n1R3qB w - - 0 1 illegal: No proof kernel
N1Q2q2/2n2Rpr/qpbn4/1P2B1RK/2Br3B/1n5N/1qbb2PR/1QnkN3 w - - 0 1 illegal: No possible last move, all moves rejected
4kN2/2pbr1KN/q1Pr4/1nQR2p1/3RBbP1/RBr1Q3/3Br2N/1n3nrr w - - 0 1 illegal: No proof kernel
2r1Kn2/bBBn1n1q/2Q4p/4nbpR/3n2P1/2NkNQnr/1R1r3P/1R1Q1N2 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 Kf5 Kc4 b4 g5 e4+ d3 g4 d5+ Ke5 a5 c3 f5 b6 f3 b5 f2 b7 d4 b6 f4 Ba3 a4 Ra2 f3 Bg2 f1N Bb2 d2 Qe2+ d3 Qd1 a3 Bc1 f2 Ne2 Bc5 Rb2 a2 Ng3 Ne3 Nf1 Nd7+ Ke6 a1N Kf7 Qc7 b8R Nac2 e5 Nd5 b7 Nf4 e6 Ng6 e7 Ngf8 e8N Ne7 Ng7 Nd4 Nf5 Nec6 Ke8 Nd8 Qf3 d1N Bf4 d2 N5e3+ Kd3 c4 Bb6 c5 Ba7 c6 h6 Nc3 Rg8 Rb3 Nb2 Bg3 d1R Be5 Qa5 c7 Nc4 Bf4 Nce5 Rb2 Nb6 Bg3 Bf5 c8Q Qa6 Qcc6 Nbd7 Rc8 Qb5 b8Q Qb7 Qbd6 Rd2 Rb8 Qc7 R8b3 Rc8 Bf4 Rg6 Qdd5 Rf6 Qd1 Rd6 Q5f3 Rd5 Rg1 Ra5 Bh1 Ra3 Rg3 Qb7 Rh3 Qc7 Rh5 Qb7 Ng3 f1N Rb1 Qc7 R3b2 Qb7 Nge2 Ng3 Bg2 Nef7 Bc7 Nfe5 Bh1 Qb3 Bg2 Qg8 Bh1 Qh7 Bg2 Nh1 Ng3 Rb3 Ngf1 Ng3 Bh1 Bg6+ Qf7 Rb5 Ncd5 Nge2 Qb7 Rb3 Nf5 Kc4 Qa8 Rf3 Nc3+ Kd3 N5e3 Rh3 Bc6 Be4 Qf3 Bf5 Qb7 Ng3 Qb6 Nb8 Bb7 Nbd7 Qbc6 Ndf7+
rnR1BR2/2r1q1pQ/2N2bKR/2kpNrB1/Q1r3nb/2n3P1/2NP2Q1/3b2b1 w - - 0 1 illegal: No proof kernel
1q3kBN/p7/K1Qq1n1p/P1q1q3/1nR1R1bP/rNB2N2/bbb1r2Q/1BQ5 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 bxc5 g5 Qh5 gxf4 Qe2 Qa5 Qd1 Qd8 Ke2 e5 a4 b5 g4 f5 c4 b4 d4 e3 Kd3 h6 h4 e2 g5 e1Q a5 b3 c6 f3 c7 b2 g6 f4 g7 f2 c5 e4+ Kc4 f3 Kb5 e3 d5 e2 c6 Qc3 d6 e1Q Qd2 Bg4 c8Q Na6 c7 Nf6 g8B Bg7 d7+ Kf8 Ra4 Nb4 Bd3 f1Q Qh2 f2 Nd2 b1B Nb3 Bc2 Bb2 Rb8+ Qb7 Qfe2 c8Q f1B Nf3 Qe6 Rg1 Qc7 Bc3 Qed6 Rg2 Qee7 Re2 Qde8 Re4 Qee5+ Bd5 Rg8 Qb6 Ra8 Qc6 Bfh3 d8N Q8e7 Q8b7 Qb8 Nf7 Be6 Qc5 Bhg4 Qe3 Bh8 Qc1 Rg5 Rc4 Bg7 Nh8 Rf5 Nfd2 Rf3 Bh7 Rh3 Nf3 Qe1 Be5 Qbe8+ Qc6 Nh5 Rc3 Qg1 Ne1 Bcf5 Bf6 Na2 Nd2 Qgc5+ Ka6 Rg3 Rc2 Ra3 Bg5 Bb2 Nef3 Nf6 Bg8 Qec7 Be4 Qh5 Bf4 Re8 Be5 Qb8 Rd4 Bb3 Rcc4 Qg5 Bb1 Bfc2 Rf4 Qh5 Bd4 Re2 Bc3 Qhe5 Rfd4 Qbd8 Re4 Nb4+ Kb7 Ba2 Nb3 Nd3 Ka6 Q8c7 Qe3 Qb8 Qc1 Nb4+
1k6/N5nB/pnRbQ1pp/1NQ2n2/B1r2B1q/1br1q1PP/RQb1q3/2K1R3 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 Kd2 f5 c4 d5 b4 Kd7 e4 Kc7 c5 h6 g3 g6 e5 f3 e6 a6 e7 d3 e8B f4 h3 f2 c6 d4 Nf3 Bd6 Ne5 f3 Qe1 Qh4 Ra2 Ne7 Na3 Nd7 b6+ Kb8 b7 Nf5 b5 Ng7 Kd1 d2 Bc4 f1N Bg8 f2 Bh7 Nb6 c7+ Ka7 b8R Be6 c8Q Bb3+ Qc2 Rf8 Qe2 Rf3 Rc8 Rc3 Rc6 Rc8 Qc4 Kb8 Qe6 Na4 b6 Ne3+ Ke2 d1B+ Kd2 f1Q b7 d3 Nb5 Qff4 Re1 Qe4 Qb2 Bbc2 Qb4 Nef5 Qc5 Nb6 Bd7 Bb1 Be8 Bb3 Bd7 Bc4 Kd1 Rc7 Bf4 Bc2+ Kc1 B4b3 Nf7 Bf8 Na7 Qf3 Nd6 d2+ Kb2 d1Q Ndb5 Qde2 Kc1 Qff2 Nd6 Ba4 Qcd5 Qd4 Rc5 Nc8 Be8 Rc6 Qc4 Kc7 Qb5 Qg1 Qb2 Bab3 b8Q+ Kd8 Qb5 Kc7 Qbc4 Kb8 Bd7 Rc7 Ba4 Nb6 Ndb5 Bd6 Qb4 Qgf2 Rc4 Rc5 Q4a3 Re5 Rc7 Re4 Qc5 Rec4 Rc6 Qfe3+
n1Bnk1b1/p1rR1pbB/PN2N3/1Q1q1P2/1KR2rb1/1bp5/1R1n1B2/1b3Q1N w - - 0 1 legal: proof: c4 e5 h4 b5 cxb5 g5 d3 gxh4 d4 exd4 Kd2 c5 g4 h5 b4 d5 e4 h3 f4 h4 a4 d3 Kc3 c4 a5 h2 g5 h3 b6 d2 g6 Qc7 b7 Qd7 b5 Nc6 b8Q Rh6 a6 Kd8 e5 Nf6 e6 Rh4 g7 Ne8 g8B Nc7 b6 Ke7 b7 Nd8 Qe2 d1B Na3 Bc2 Be3 Bh7 Rd1 Bg7+ Rd4 Bb1 Bf2 Qc6 Bh7 Qd7 Kb4 c3 Kc5 Kf8 Rd1 d4 Nc4 d3 Qe1 d2 Ne2 Qd3 Ng3 Qf3 Be2 Qe4 Qf1 Ke7 Re1 d1B Rg1 Bdc2 Rd1 Kf8 Bg4 h1B Bg6 h2 e7+ Kg8 e8N Kf8 Bd7 Qd3 Bg4 Bd5 Rg2 h1N Be6 Nb5 Nc7 Qf3 Bd3 Be4 Rh2 Bh7 Bg6 Bg8 Bh7 Rg4 Rh4 Ke7 Rd2 Ba4 Rb2 Bb3 Kb4 Qd5 Bd7 Nd6 Bdf5 Bd7 Be6 Nc8 Bef5 Nb6 Be6 Bb5 f5 Kf8 Bd7 Ke7 Ne6 Re4 Qc7 Rc8 b8R Na8 Qc6 Rg4 Rb6 Rc7 Bc8 Rd4 Qb7 Ke8 Rd6 Rg4 Rd7 Re4 Be3 Nf2 Nh1 Rg4 Bc5 Ne4 Bf2 Nd2 Qc6 Bd4 Nb6 Be2 Qb5 Bg7+ Nc4 Rd4 Rf4 Bg4 Re4 Rd3 Nb6 Rf3 Rc4 Rf4
3r4/3N2B1/2pQ1NQn/2RB1rnp/3R1p1P/rQ1qnPrb/3Bbbk1/3NK3 w - - 0 1 illegal: No proof kernel
1bK5/5Rpk/1R4R1/3rB1q1/1rb1QnB1/2np1pPb/Nb1P2Q1/N2nBNr1 w - - 0 1 illegal: No proof kernel
2BN2Nb/2r3p1/2b1Qp2/2n3Q1/1p1Rq2Q/nqBRr3/qPkBq1P1/4qR1K w - - 0 1 illegal: Other
6bk/2n2BbN/1Nn1pQ1q/q1QRPp2/1p2QP2/4KRB1/1r2n3/r1rn1B1R w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h3 axb4 h4 gxh4 d4 b5 Kd2 h5 e4 f5 a4 Kf7 g4 Kg7 g5 c5 e5 b3 d6 c4 d5 b2 a5 h3 a6 b4 d7 h4 g6 c3+ Ke3 h2 d6 h3 a7 c2 Nc3 b1N Nd5 Nc6 Nf3 Nf6 Ng5 Qa5 d8Q Nc3 d7 Ne2 Qd4 Ne8 Nh7 Nc7 Ra3 Ba6 f4 Bc4 Nb6 Bg8 Bd2 c1R Be1 e6 Bg3 Nb5 Qc5 Nc7 Rg1 h1N Qg5 h2 d8R Nf2 Rd5 h1Q Qf6+ Kh6 Rad3 Qh4 Rh1 Bg7 Kd2 Nd1 Rf3 Rd8 a8Q Ra1 Rdd3 Rd4 Qb7 Rc4 Rd5 Rc3 Qa6 Rb3 Qac4 Rb2+ Kd3 Bf7 Q4d4 Rc8 Qe4 Bg8 Qfe7 Bf6 g7 Kg6 Qf8 Qh6 Qd8 Bf7 g8B Kg7 Qdf8+ Kh8 Qfe7 Bg7 Qf6 Ra8 Ng5 Rc1 Nh7 Be8 Bf7 Ra7 Bh5 Bf7 Bg6 Bg8 Bf7 Ra8 Qd6 Qc5 Qde7 Raa2 Qd6 Qa5 Qc5 Ndc3 Ke3 Ra4 Kf2 Raa1 Ke3 Nd1+
2RQ2BK/b1p1Qn2/r2BN2k/Qnpr1q1q/r1P3p1/4N1P1/5bBR/3R2bb w - - 0 1 illegal: No proof kernel
2Qq4/pBB1bnR1/Ppq2N2/bPrQ2Qn/6pN/5b2/Kr1B1k1b/N3R2r w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 Bh3 hxg4 Bg2 Nd7 Bf1 Nb8 d3 g3 Kd2 Kd7 Kc3 Kd6 Kb3 Kc5 h4 Kd4 e4 f5 a4 g5 d6 c5 d7 g2 e5 f3 h5 c4+ Ka2 c3 b4 c2 b5 f2 h6 f4 e6 b6 h7 f3 a5 g4 a6 Qg5 d8B Nd7 e7 Nh6 e8N Bb7 Nd2 Ke3 d4 Nf6 d5 Rc8 d6 Nf7 Be2 f1Q d7 f2 Ngf3 g1B Rh6 Bd6 Rg6 Qg2 Rg7 f1R Bc4 Qh4 Bd5 Rf2 Nb3+ Rd2 Rb1 Kf2 Na1 Re2 Bh6 c1B+ Qd2 Bca3 Re1 Bab4 Bg5 Ba5 Bf4 Rg8 h8Q Rc5 Bc7 Bf8 Qh5 Rh8 d8Q Qg5 Qg6 Rh1 Qc8 Nh5 Nh4 Qd8 Nf6 Be7 Qg5 Bh2 Be4 Bc6 Bf3 Be8 Bb7 Bc6 Kb3 Qe4 Qd6 Rec2 Bd2 Rb2+ Ka3 Qe6 Qd3 Bf3 Qdd5 Rb1 Ka2 Qc6 Qf4 Rb3 Qfg5 Rb2+
bB1r2B1/2R2NpQ/2qb2qQ/1Rp1N1B1/5q1R/n1P2p2/4kPqN/2Kb1r1n w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 h5 Ra5 hxg4 Ra6 Rh5 Ra1 Rh8 Kd2 Ke7 h4 Kf6 b4 Ke5 e4 Kf4 b6 c5 b7 d5 e5 a5 h5 f5 e6 d3 e7 a4 e8Q d4 b5 a3 c3 g3 h6 g2 h7 a2 b6 Qd7 Ne2+ Kf3 Rh5 g1Q Qf7 f4 Rh1 Nc6 b8R Ne5 b7 Ne7 Qe1 Nc4+ Kd1 d2 Qe6 Qg6 Qa6 Nf5 Rh2 Ng3 Na3 Qdc6 Rh4 Nh1 Ng3 Bd6 Rb1 a1Q Rb5 Be6 Rc8 Rd8 h8N Bd5 b8B Qab1 Qe7 Qbf5 Rc7 Qh3 Qf7 Qg2 Qf5 Ra7 Kc2 d1Q+ Kb1 d3 Nf7 d2 Bd3 Qh5 Qh7 Qg6 Nf1 Qa4 Bc2 d1B Nh2+ Ke2 Be4 f3 Bg5 Qd7 Kc1 Ba8 Bd5 Qc6 Qb6 Ne3 Ba2 Nc2 Nc4 Na3 Nce5 Qag4 Nh6 Ra4 Bg8 Re4 Nhf7 Qf4+ Kb2 Kd2 Qa6 Re1 Qb6 Ke2 Qa6 Qfe4 Kc1 Rf1 Qc8 Qgf5 Qe6 Qa4 Qeh6 Qg6 Rb1 Qc4 Rb5 Qf4+
2NR2Bk/p3pnp1/P3nr1n/bB1N1b2/1bR1r1P1/4K1B1/qqQQ2QN/4b3 w - - 0 1 illegal: No proof kernel forced: wxDB
3b3q/4r1p1/rpn1NQ2/2b1R1B1/kP1q1QP1/N1B1nB1p/2K1b1Qr/N3b1R1 w - - 0 1 illegal: No proof kernel
b1kN3q/rr2pn2/1rBB3B/b1p3n1/p4bN1/4Pq2/PNRQRR2/1bKQ4 w - - 0 1 illegal: No proof kernel
1K1N1Rr1/1p2nq2/1np1R3/rNQBp3/QPqB3B/bbqn3R/Q1P1kq2/8 w - - 0 1 illegal: No proof kernel
nq2rq2/p1p3Bk/3p3B/2R1q2b/5b1n/Prr2rQ1/B1PN2NQ/1RNK3Q w - - 0 1 illegal: No proof kernel
1b1R4/1Qrb1p2/1Bnrp2p/q2BP2K/kN5Q/1bnnRbN1/1B2N2P/1Q4n1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 Ra5 gxf4 Ra3 Bb7 Ra1 Bc8 Kf2 a5 Kf3 d5 g4 Kd7 e4 a4 b4 h6 c4 d3 b6 Kc6 c5 Kb5 g5 a3 b7 a2 g6 e6 Kg4 f3 e5 d4 c6 f2 g7 Ra6 c7 Be7 Ne2 d2 Ng3+ d3 Bg2 f1N Bd5 Bd6 Bb2 Bd7 c8Q Ne7 g8Q Nbc6 b8B Qa5 Ba7 Bb8 Qg5 Rd8 Qc7 Rc8 Qb7+ Rb6 Kh5 Rc7 Qc1 Ka4 b5 Ra6 b6 d1B+ Ne2 Nd2 Re1 Bb3 Ng3 Nf3 Re3 d2 Qh4+ Ncd4 Qc2 d1B Qce4 Nc6 Nc3+ Kb4 Rb1 a1N Nce2 Ng1 Rc1 Kb5 Qb1 Ka4 Rcc3 Nc2 Rcd3 N2b4 Bg2 Be8 Qa8 Nd8 b7 Rac6 Bb6 Ba7 b8N Nb5 Qb7 Nc3 Na6 Bb8 Rd7 Rd6 Bd5 Nc6 Rd8 Nf3 Nd4 Nd3 Nb4 Ng1+ Qg4 Bf3 Nde2 Bh1 Qf4 Bd7 Qh4 Bf3+
KBNB1Qn1/7p/k5rN/b2Rp2q/r5Qp/2QR4/B1p1P2P/nnb1N1rb w - - 0 1 illegal: No proof kernel
n1n1RQR1/4KN1R/N3pr1p/1p2PbQ1/B1k1B1qr/2p1r1b1/2P5/1Nq1B2n w - - 0 1 illegal: No proof kernel
3B3q/p2nK1Rp/1q2N1n1/NB2R3/1pbrr2q/PPpk3b/R2N2QB/Q1b5 w - - 0 1 illegal: No possible last move
1q1QR1N1/1pbp2B1/p1N5/1nq3p1/2Q1Rr2/P1BK1nPb/r2RBnk1/2N2q2 w - - 0 1 illegal: No proof kernel forced: wxLB
r3N1nQ/2bN1bRB/1pQ2p1B/1r5k/1nK1qP2/1rp2R2/1pPB3N/nR2n3 w - - 0 1 illegal: No possible last move
q2b2Bq/Np5p/Q1Rrpn2/Q2pPNk1/2b2b2/3bnr1Q/7P/1RRKB2B w - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 f5 gxf5 a5 Bg2 axb4 Bh3 Ra3 Bf1 Ra8 f4 Kf7 c4 Kf6 e4 d5 a4 g5 e5+ Kf7 a5 g4 c5 g3 a6 g2 a7 b3 f6 Kg6 f7 d3 f5+ Kg7 c6 b2 c7 Qd6 f6+ Kg6 Na3 b1Q Ne2 g1B Nd4 Qd8 Bg2 Nh6 Qf3 d2+ Kd1 Kg5 Nab5 Nf5 Qh3 Qa2 Rb1 Bh6 f8R Nd7 f7 Nf6 Bb2 Bf2 Bc3 Bh4 Be4 Rb8 a8Q Qa3 Re8 Rf8 Qa6 Qa1 Na7 Ne3+ Ke2 Qa5 Rhc1 Bf5 c8B d1B+ Kd2 Ra8 Be6 Be2 Bh1 Bfd3 Nf5 Rc8 Bb4 Rc6 Bc3 Qa8 Rc8 Rd6 Rc6 Q5d8 Ba5 Bc4 Bb4 Bed3 Qa5 Rh8 f8Q Qdc8 Qfd8 Rf8 Bg8 e6 Qa6 Rf7 Qda5 Qf8 Bc5 Qg7 Bb6 Qh8 Bd8 Bg3 Bb6 Bf4 Bd4 Bf8 Bc3 Be7 Ke1 Bd8 Bb4 Nf1 Kd1 Ne3+ Kd2 Ne8 Nh6 Bg3 Bc3 Rf1 Nf5 Nf6 Bb4 Rf3 Bc3 Neg4 Kd1 Bf4 Be1 Ne3+
1br1k3/1p1ppr2/1B2Q1nB/R1RK4/NP1P3p/bp3R1B/1Qb2rQq/3nN3 w - - 0 1 illegal: No proof kernel forced: wxLB
1R5B/p1p1NRq1/2pn3K/P1RrQQ2/p1QbN3/1qnn1p2/1kB2Pr1/5b1B w - - 0 1 illegal: No proof kernel
qrb1B2b/pp3pnN/2B2N1k/3Q2n1/1PRp1Qn1/B7/1qrPN2p/K2R1R2 w - - 0 1 illegal: No proof kernel
2k1BNQ1/Rp2pr2/1P1K1p2/p3p1n1/1N3B1R/1n2r1pR/r1qb1NPQ/4B2b w - - 0 1 illegal: Other
3R4/2bQbN2/1B1bR1Bp/5N1P/1B3n2/2PBK1pn/4B1qn/n1k1N2r w - - 0 1 legal: proof: b4 a5 g4 b5 e4 c5 d3 d5 bxc5 dxe4 a4 f5 axb5 Ra6 bxa6 fxg4 Be3 Be6 Bc1 Bc4 dxc4 Qd3 Ne2 Qd5 Ng1 Qd8 Ke2 Kf7 h4 Kg6 f4 Kf5 c3 e5 a7 g5 a8N a4 c6 g3 c7 g4 c8B+ Nd7 c5 e3 c6 Ke4 c7 g2 f5 a3 f6 a2 f7 Be7 f8B Ndf6 Na3 Nh5 Nb6 Qd5 Nbc4 Nh6 Nc2 Kf4 Bd2 e4 Nd4 Qg5 Rc1 a1N Ngf3 Qg8 Bf5 g1N+ Ke1 Bd6 c8B Nh3 Bd3 Be7 Kf1 Qd5 Be1 e2+ Kg2 e3 Bg6 Qe4 Bf2 e1B Ba6 e2 Nf5 Qc6 Bb6 Bg3 Rc2 e1B Ne5 Bef2 Bac4 Bfc5 Re2 Bcd6 Nf7 Bh2 Re6 Qe4 Nd4 Ke3 Kf1 Bc7 Ne1 Bhd6 Rh2 g3 Rd2 Ng4 Nf5+ Kf4 Qa4 Qc6 Ke2 Nh2 Bg7 Qh1 Qd7 Qg1 Bgd4 Qg2+ Bf2 h6 Bc5 Rb8 Ba3 Rb1 Bb4 Nf6 h5 Nd5 Ra2 Rd1 Ra8 Rb1 Rd8 Rd1 Nc2 Rh1 Kd2 Kf3 Ba6 Ndf4 Bab5 Qg1 Bb6 Qg2+ Re2 Rf1 Ba4 Nf2 Re6 Rh1 Bb3 Kg4 Ke3 N2h3 Kd4 Kf3 Ne1+ Kf2 Bd1 Qf3 Nc2 Qa8 B1e2 Qg2 Na3 Ke1 Nc2+ Kd2 Ne1 Kc1 Ke3 Bg5 Bc2 Bf6 Bcd3 Bfe7
1qN1N2N/Pn2R3/r2P3k/NR3ppp/6RK/r2r2BN/r2Q3q/B1q5 w - - 0 1 legal: proof: h4 Nc6 h5 g6 h6 Nd4 Na3 Ne6 Nb1 Ng7 hxg7 Nf6 Rh5 Ng8 Rh4 Rb8 Rh1 Ra8 g3 e5 Bg2 Qf6 Bc6 Qd8 Bb5 c6 f3 cxb5 b4 d5 g4 a5 g5 e4 Nh3 d4 Nf4 Be7 Nh3 Bf5 Ng1 Bf6 Rh5 axb4 Rh1 d3 exd3 e3 Ne2 Be5 Ng1 Be4 fxe4 f5 Rh5 Qb8 Rh1 Bf6 gxf6 Qd8 a4 Kf7 c4 h5 e5 e2 Kf2 e1R Kg3 b6 e6+ Ke8 a5 b3 c5 b4 f7+ Ke7 f8B+ Kf6 a6 Kg5 c6 b2 d4 b5 a7 b3 e7 b4 e8N Rh7 d5 Re2 d4+ Rd2 d6 Kh6 c7 Qe7 c8N Nf6 g8R+ Rg7 d7 Qe5+ Kh4 Qh2+ Nh3 Rb8 d8N Ne4 d5 Rb6 Bd6 Nc5 Na3 b1R Bb2 Ra6 Nc4 Rd7 Ra5 Ra1 Rg1 Nb7 Rg7 Ra3 Ba1 b2 Re7 b1Q Bg3 b3 Rb5 b2 Na5 Qc1 Qe1 b1Q Nf7+ Kh7 Rg2 Rda2 Nh8+ Kh6 Qc3 Qbb2 Qb4 Qe5 Rg1 Qb8 d6 Rc7 Qd4 Rcc3 Qd2+ Re3 Bge5 Rd3 Rg4 Rda3 Bg3 Rd3 Qf2 Rda3 Qc2 Red3 Qd2+ g5+
qrn1R1Nn/1BNn3r/3P1b2/k3r1rN/2rN4/1R6/KNP1B1BQ/2b2q2 w - - 0 1 legal: proof: e4 d5 h4 b5 d4 g5 a4 gxh4 axb5 c5 dxc5 f6 Bd2 d4 Bf4 Be6 Be5 Bd5 exd5 fxe5 Kd2 Kd7 Kc1 Kc7 b4 h5 Kb2 a5 g4 a4 f4 d3 g5 e4 g6 e5 g7 e3 b6+ Kb7 d6 Ka6 b7 e4 f5 a3+ Ka2 h3 c6 h4 f6 e2 f7 e1R b5+ Ka5 b6 d2 c7 h2 c8B e3 Nh3 e2 Nc3 Ne7 g8B Bh6 f8N Nd7 b8N Rh7 Na6 Rb8 Nf4 h3 Bb7 Nc8 Na4 Rg7 Rc1 Rg5 Bfg2 Qe8 Rg1 h1R Nh5 h2 Ne6 Qf7 Rb1 Qf1 Qc1 d1R Qf4 Rd4 Nac7 Rb4 Nd4 Rc4 Ka1 a2 Nb2 Ne5 B8d5 Nf7 Bdf3 Nh8 Qg3 Rc1 Bg4 e1N Be2 Nd3 Qh4 Nc5 Qh3 Qf4 Re1 Qf1 Qh4 Rg1 Qf4 h1Q Qh2 Rg7 Nf5 Bg5 Nh6 Rh7 Ng8 Be3 Bbf3 Rd1 b7 Rd5 Be4 Re5 Bc6 Ra8 b8N Bc1 Bb7 Nd7 Nc6+ Kb6 Ne8 Rb8 Nd4 Ka5 Nc7 Qf2 Bgf1 Rgg5 Bfg2 Qfg1 Na4 Qf1 Rb3 Bf4 Kb2 a1B+ Ka2 Bc3 Nb2 Bc1 Bh3 Qc6 Bg2 Qa6 Bef3 Qa7 Re3 Qa8 Be2 Ref5 Re8 Rfc5 Nf5 Bf6 Nd4 Rce5
1R2n1bb/q3b3/2RrBNnr/Nq3P2/1n4qB/KBQN4/q3kP2/B5B1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb2 h5 g4 e5 b6 c4 g5 c3+ Kb3 h3 b7 e4 g6 c2 g7 h2 Be3 c1N+ Kb2 h4 Nd2 h3 Ra5 b3 Ne2 Ne7 g8B Rh6 Bh7 Qb6 Nf4 Nd3+ Ka3 b2 Qe2 b1Q Bg8 Q1b5 Be6 Ng6 Qe1 Be7 Ra6 Nb4 Bc4 Nd7 Bb3 Nf6 Nd3 Ne8 b8N Bd7 Nc6 Rd8 Na5 Bc8 Ra8 Qa7 Rb8 Bb7 Bg5 e3 Bh4 e2 Qa1 e1B Qc3 Bc6 Rf1 h1Q Ne4+ Kc7 Nf6 Kd6 Rg1 h2 Rf1 Bd2 Rc1 Qd1 Rc2 h1Q Bg3+ Bf4 Bh2 Qhf1 Bg1 Be5 Rc1 Qg4 Rc2 Qc4 Rc1 Bb7 Rc2 Kc7 d6+ Kb6 d5 Kb5 d7 Bd4 d6 Qfe2 Ne4 Bh8 Nf6 Qcc5 Rc1 Qcb6 Rc2 Bd5 Rc1 Rc8 d8B Rc6 d7 Rd6 Bc7 Bc4 d8B Qbb7 Bc8 Bg8 Bb6 Qe6 Bd4 Qbb6 Be5 Qd5 Be6 Qdc4 Nf4 Kc5 Rc2 Qb5 Qf3 Qc3 N6h5 Bf8 Bh4 Be7 Rc1 Qc2 Ba1 Bc3 Qc6+ Kd4 Qc8 Ke4 Nd3 Bh8 Nf6+ Kf3 Qc4 Qe2 Qd4 Qd2 Rc6 Ke2 Qc3 Qa2+
Qr3B1B/1NP5/3n2n1/Pb1r3n/1n3r1N/3q1R1b/1K3RBk/NnrN2N1 w - - 0 1 legal: proof: g4 a5 d4 c5 f4 cxd4 b4 axb4 h4 f5 e4 g5 exf5 e6 fxg5 Ra4 h5 Ra7 h6 Bc5 g6 Bf8 g5 Bg7 hxg7 Ra8 Kd2 Ke7 a4 Kd6 c4 Ke5 Kc2 b5 f6 h5 f7 d5 f8B h4 a5 d3+ Kb2 d4 c5 b3 c6 b4 c7 d2 Na3 Kf4 Rh3 e5 Bg2 d3 Re3 e4 Rh3 e3 Bf3 e2 Rh1 Kg3 Bc6 e1R Rh2 h3 Ra2 Rh4 Bf3 Rf4 Nc2 Ne7 g8N Na6 g7 Ng6 Bg2 Rb8 Ne7 Bd7 g8N Bb5 Qe2 d1B Nc8 d2 Na1 Qd3 Qe4 Bg4 Nh6 d1R Nd6 Be6 Rh1 h2 Nb7 Bh3 Ng4 Ref1 Be3 Rc1 Bd4 Rfd1 Bh8 Rd2+ Nc2 Rdd1 Nge3 Rd2 Nf3 Rdd1 Rf1 h1N Ng1 Kh2 Na1 Ng3 Ra3 Nh5 Qe8 Qf5 Qd8 Rd5 Rf2 Qd3 Qe8 Nc5 Qc6 Ne4 Nd1 Nd6 Qa6 Rcc5 Qa8 Rc2+ Kb1 b2 Rb3 Rcc5+ Ka2 b1N Kb2 Rc1 Rc3 Ne5 g6 b3 g7 Na3 g8N Ng6 Ne7 Nc2 Nf5 Nb4 Nh4 Qf1 Ka3 b2 Rcf3 b1N+ Kb2 Qd3
NB1N2k1/b4R2/B5qB/1N3R1K/1N1bN1P1/2r3bP/r4bnq/Q3rnr1 w - - 0 1 legal: proof: c4 b5 e4 h5 a4 f5 axb5 d5 cxd5 fxe4 g4 hxg4 f3 g3 Ra4 g2 Ra3 Rh7 Ra1 Rh8 Na3 g5 Nb1 g4 Qb3 g3 Qd1 Bg4 fxg4 Rh5 Nf3 Rh7 Ng1 Rh8 Ke2 Kf7 b4 c5 d4 a5 h3 e5 b6 c4 b5 a4 b7 a3 b6 c3 d6 e3 Kf3 e4+ Kf4 e2 d7 e1R d5 e3 d6 e2 Nd2 a2 Qa4 c2 Qe4 Nf6 Kg5 Qc7 d8N+ Kg8 d7 Bd6 Ndf3 Nh5 Nd2 Na6 b8B Nf4 b7 Nb4 Qd4 Nbd5 Ne6 Ne3 Ngf3 g1R d8N g2 Ne4 Qf7 Rb1 a1B Nc7 Ra2 Na8 Qe6 Bd2 c1Q Rb5 Qb2 Rf5 Qc2 Qe5 Bd4 Bc1 Ba7 Nd4 Bdc5 Nb5 Bd4 Bd2 Rh7 Qf6 Rc7 Kh6 Rc3 Rh2 Ng6 Kh5 Nh4 Rh1 Qd6 Bc1 Qh2 Qe5 Nc4 Bh6 Nd2 Qf6 Rd1 Qa6 e1B Rf7 Bef2 Be2 Rge1 Rf1 Bg3 R1f5 g1B Qa3 B1f2 Qa4 Rb2 Qa1 Nf1 Nf6+ Kh8 Nd6 Ne3 Bc7 Nd5 b8N Rg1 Rf4 Qh7 Na6 Rde1 Bb8 Ng2 Nb4 Nde3 Nfe4 Ra2 R4f5 Nf1 Ba6 Kg8 Nb5 Qg6+
8/N2r1B2/B2q2Pb/kqB1Pb2/2n1QR1B/B1rq3N/2n1nKn1/1qN3R1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 e4 Kd7 d4 h5 g4 c5 g6 Kc7 g7 Kb6 g5 f5 d6 c4 g6 f3 d7 c3 e5 b3 d5 c2 d6 b2 Bc4 f2+ Ke2 f1N Na3 b1Q Qe1 f4 Rh4 f3+ Kf2 Nc6 Qe2 Nb4 Nh3 Nf6 g8B Ng4+ Kg1 f2+ Kg2 Ra7 Bgf7 Bh6 Qe4 Ka5 b6 Nd2 Ba6 Nc4 b7 f1Q+ Kg3 Qe8 d8N Nge3 b8B Qb5 d7 Ng2 Ne6 Qd3+ Kf2 Rh7 d8B+ Rc7 Nc5 Bf5 Rf4 h4 Bb2 c1N Ba7 Nc2 Be7 Qd6 Nd3 Ne2 Bc5 Qd1 Nc1 Q1d3 Ng1 h3 Bh4 h2 Nh3 h1Q Rb1 Qa4 Nb5 Rg7 Na7 Qb5 Bba3 Rh7 Be6 Rhd7 Bf7 Qhd1 Na2 Qc1 Ra1 Qcb2 Rg1 Qb1 Nc1 Nb6 Be3 Rc3 Bec5 Nc4
Rn2RB2/1N1qb3/1PrR2rP/1q1r4/1qnn3R/2KBNk2/1nn5/4Q1RN w - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 h4 d5 cxd5 g5 a4 h5 axb5 Bf5 Ra6 Bg6 Ra5 gxh4 Ra1 h3 Qb3 h4 Qd1 Bh5 gxh5 Bb4 Kf2 Ba3 Ke1 Bf8 e4 Ke7 d4 Kf6 Kd2 Kg5 b4 c5 h6 a5 d6 f5 d7 c4 b6 h2 e5 f3 d5 Kg4 d6 c3+ Kd3 a4 e6 c2 b5 a3 b7 f4 e7 a2 e8N h3 b6 Ra5 Na3 Be7 Kc3 Rd5 Qd2 f2 Bd3 f1N Nb5 f3 Be4 f2 Kb4 Ne3 Bd3 f1Q Nd4 Nc4 Ba3 c1R Nge2 Qf8 Rb1 a1N Qe1 Nc2+ Kc3 Qf1 Nf5 Kf3 Rg1 h1N Neg3 h2 Rb4 Nf2 Ne3 h1Q Ra4 Qhh3 Nh1 Qg4 Ra8 Qc7 d8R Qcd7 Rc8 Qf4 Rc5 Qfg4 Rca5 Rh7 Ra4 Rg7 Bc5 Rg6 Bb4 Nc6 b8R N6d4 Bc5 Nf6 Rd8 Qb5 d7 Qfh3 Nd6 Qe4 Rh8 Qhf5 d8R Nd7 Bb4 Nb8 Rhe8 Qfd7 Nb7 Qeg4 Rc8 Qe4 Rc6 Qf4 Rd6 Qfg4 Bf1 Nd3 Ba3 Ndb2 Bd3 Bf6 Rc6 Qf4 Bf8 Be7 Rd6 Ne5 Kd2 Ndc6 Re4 Na3 Rg2 Rcc5 Rea4 Nc2 Rg1 Qfc4 Nd8 Qcb3 Re4 N6d4 Nb7 Rc6 Reg4 Q3a4 Rh4 Nec4+ Kc3 Qab4#
8/QRR1Nq2/nq1RNBrq/3RqPR1/2r4B/4n1r1/1bB3P1/k1nK2r1 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b3 a5 b6 a4 Qe2 a3 Qf3 Bd7 Qd1 Ba4 bxa4 Qc8 Nc3 Qd7 Nb1 Qd8 d4 Kf7 f4 Kf6 f5 e5 b7 c5 a5 h5 a6 a2 d6 c4 a7 e3 d5 h3 d7 e2 d6 h4 Qb3 h2 Nh3 c3 Qd5 e4 Qb3 Ke5 Ba3 Kd4 Ng1 c2 Bb4 c1N Bd2 h3 Bh6 Nf6 Qb5 Nd5 Bf4 Ne3 Bg5 Qb6 d8B Na6 b8R Bg7 d7 Rh4 Kd2 e1R Bd3 Nf1+ Kc2 e3 Qa5 e2 Nc3 Rh6 Rb7 Rg6 Bh4 Rc8 a8R Rc4 Raa7 Be5 Rb1 a1R Rb5 Ra3 Bdf6 Rd1 Rc7 e1Q Rab7 Qe4 d8R+ Qd5 Rg8 Qf7 Kb1 Re1 Bc2 Rd1 Nd5 Rag3 Qa2 Re1 Ne7 Kc3 Nf3 Rd1 Rg1 h1Q Rg7 h2 Nd4 Ne3 Rh7 Nb4 Be4 Rf3 Qa7 Na6 Rh6 Re1 Rh5 Rd1 Rf1 Rh3 Rf2 Qe1 Rg5 h1Q Rd2 Rg3 Ne6 Qe2 Rdd7 Rg1 Rd6 Nf1 Bd3 Qe1 Be4 Bd4 Bd3 Qe5 Be4 Rd3 Bf2 Qh6 Bh4 Rg3 Bd3 Nb4 Rbd5 Na6+ Ka1 Kb3+ Kb1 Bc3 Be4 Ka3+ Kc2 Ka2 Bd3 Bb2+ Kd1 Ka1 Bc2 Ne3+
Q4B1N/1N2brq1/2Bn1n1P/5q2/2N1B1rr/KRR3q1/P1N2r2/1N2n1kq w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g3 c5 g4 hxg4 Nc3 d5 Nb1 Bd7 d3 Bb5 cxd5 c4 Qa4 c3 Qd1 Bc4 dxc4 Qd6 Qa4+ Qd7 Qd1 Qd8 f4 Kf7 h4 Kf6 d6 g5 h5 b5 d7 e5 c5 e4 c6 e3 c7 e2 c8B b3 Bb7 b4 Bf3 g3 Na3 c2 Kd2 e1N Rh2 b2 Bc6 b1Q Bfg2 g4 Qf3 b3 Kc3 b2 Kb3 Be7 Nc4 Nh6 Ne2 Ra7 Rh3 Qg8 d8N Qg7 Nb7 Nf7 Nc3 Nd7 h6 Nd6 Qd5 Rf8 Be4 g2 Be3 c1Q Bc5 Qd3 Rb1 g1R Qg8 Rf7 Qa8 Ra4 Rf3 Rb4+ Ka3 g3 Re3 Qcd1 Rc1 Qd5 Nb1 g2 Rb3 Rh1 Rcc3 g1Q Ba7 Rh4 Bc5 Ne8 Bd6 Q1g3 Bc5 Qdf3 Bd6 Qh1 Bc5 Bd8 Bf8 Nd6 Bf3 Qe4 Nca5 Q3g4 Nd2 Nc8 Bd6 Re7 Bg2 Rd4 Nac4 Qg3 Bb4 Kf7 f6 Ke6 f7 Kf5 f8N Kg4 f5 Qef3 f6 Qf5 f7 Nf6 Bgf3+ Kh3 Ne6 Kh2 f8N Kg1 Ng6 Rf7 Bf8 Nd6 Nh8 Rdg4 Bfe4 Be7 Nd4 b1R Qa7 Nf3 Qa8 Rb2 Nb1 Rf2 Nc2 Ne1
1BQ1nKB1/7r/B7/n1Nr1PBR/1N1n2q1/b1B1Pkb1/2p1qb2/NR4q1 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 e5 d4 exd4 g4 fxg4 h3 g3 Qa4 g2 Qc2 Nh6 Qd1 Ng8 Bg5 Bg4 Bc1 g5 Ra3 Bf5 Ra1 g4 Na3 g3 Nb1 Bg4 hxg4 Bd6 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 h5 Kf5 a5 Kg6 Ke5 Kf7 Ke4 b4 c5 f4 h4 e3 h3 f5 d3 b6 d2 d6 a4 b5 c4 d7 h2 b7 c3 g5 a3 b6 c2 g6 a2 g7 Ra5 Nf3 g1B Ne1 g2 Ba6 Ba3 Bb2 Bf2 Nd3 g1B Bc3 Qg5 d8B Nc6 b8N Bg3 b7 Rd5 Nd7 Na5 b8B Rh7 Nb4 Qg4 Bg5 B1f2 Kf8 Nf6 g8B Ne8 Qf1 d1Q Qc4+ Kf3 Qc8 Qe2 Nd2+ Kg2 Rac1 a1N Nc5 N1b3 Rb1 Nd4 Ndb3 Kf3 Na1 Rd8 Rhg1 h1Q Rge1 Qg2 Rh1 Rd5 Rh5 Qg1
3N2b1/1B1k1r2/pP1b1q1R/4B1P1/R1RQ1Nbr/1Rqq4/3NRn2/3K2nn w - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 c4 f5 exf5 g5 cxd5 gxh4 a4 cxb4 axb5 Qd6 Ke2 Qb6 Ke1 Qd8 f4 e5 d4 h5 g4 a6 d6 h3 f6 e4 f5 h2 d5 b3 g5 h4 f7+ Kd7 b6 b2 f6 h3 Ra4 e3 Nd2 b1Q Bg2 e2 Bb2 Rh5 Be5 Qd3 Rc4 Be7 f8R Nc6 f7 Rh4 Re8 Nd4 f8R Ra7 Rf3 Nh6 Rg3 Ng4 Qa1 Nb3 Qd4 Nf2 Rf3 Nc1 Re3 Qe4 Rb3 Qd3 Bf3 Bf8 Ra4 Qf6 Re7+ Kd8 d7 Rb7 Re6 Ba3 Rc6 Bd6 Rcc4 Ke7 d8R Bg4 Rd7+ Ke8 Rh7 Rf7 Rh6 Kd7 Bg2 Ba3 d6 Bb4 Nf3 Bc5 Rf1 h1B Ng1 h2 Bb7 Bd5 Nh3 h1N Nf4 Kd8 d7 Bd6 Raa3 Ke7 d8N Kd7 Ra2 Rh7 Ne4 Bg8 Raa4 Rf7 Rg1 Qg3 Kd2 e1Q+ Kc2 Qee3 Re1 Ne2 Nd2 Ng1 Re2 Qc3+ Kb1 Qa5 Kc2 Qd3+ Kc1 Nfh3 Kd1 Qb4 Qe4 Qbc3 Qd4 N3f2+
1KQq1n2/3N3r/1n4RB/2R1n2b/5rr1/RpbRR1n1/PNB4P/k2N2b1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 f4 e5 d6 b5 Kd5 g4 h6 b3 h7 e4 d7 e3 Qd3 b4 Nd2 g3 Qc2 g2 Qb1 d3 Nh3 g1B Qc2 b2 Nf2 b1R Nc4 e2 Nb2 e1N Nfd1 d2 Bd3 Ne7+ Kd6 b3 Qc4 Ba6 Qc8 Nf3 Bc2 Rg8 h8R Bg7 Rh7 Ra7 Rh5 Be2 Rh3 Ne5 Re3 Qa5 d8R Nd5 Rd7 Nb6 Rc7 Bf3 Rc5 N8d7 Rd3 Bh5 Re3 Ra8 Kc7 Nf8 Rd3 Ra7+ Kb8 Bh8 Re3 Rg4 Rd3 Bf2 Rg1 Rh7 Rgg3 Bg1 Rge3 Kg7 f6+ Kg6 f7 Kf6 Nc3 d1N f5 Nf2 Ncd1 Ne4 Bd2 Ng3 Bc1 Kg5 f6 Kf4 Bd2 Qb5 Bc1 Qe8 Bd2 Qd8 Bc1 Nfg6 f8R Bg7 Rf7 Nf8 Ra7 Bh8 f7 Bf6 Rf3+ Ke4 Bh6 Rc1 Rde3+ Kd4 Ra3 Bg7 Rf6 Bh8 Rg6 Bg7 Nc3 Rf1 Rae1 Rff4 Ncd1 Ne6 f8N Bf6 Nd7 Nf8 Rf3 Bh8 Nc4 Bf6 Nde3 Kc3 Nb2+ Kd2 Ned1 Kc1 Rd3 Bg7 Ree3 Bh8 Nf2 Bf6 Bd1+ Kb1 Bc2+ Ka1 Nfd1 Nf3 Re2 Bc3 Ree3 Ne5
2kBR2Q/1q2nNbP/N1r1R2b/2q1n3/7b/PqBB1B2/K1brp3/2NB4 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Ra6 fxg5 Ra4 g6 Ra3 g5 Ra8 Qg4 hxg4 Kd1 Kd7 Kc2 c5 Kb2 b5 h4 e5 d4 c4 f6 g3 a3 g2 h5 e4 h6 b3 d6 e3 h7 b4 d5 Na6 f7 Qb6 g7 Kd8 g6 Ra7 d7 Rb7 Rh6 Nb8 Nc3 Ne7 g8B Qc5 g7 Rc7 Nge2 g1B Nb5 Rc6 Nc7 Bf2 Na6 Bh4 Bd2 c3+ Kb1 b2 Re6 c2+ Ka2 c1B Bc3 Bd2 Nc1 Bb7 Bd3 e2 Rb1 Bh6 Nb3 Rc7 Rf1 Bc6 Nc1 Ba4 Rf5 Nbc6 Rfe5 Nc8 Re4 Ne5 Re3 Rc6 Re4 Bfe7 Re3 Bef6 Re4 Bc2 Re3 Qe7 f8Q+ Qe8 Bf7 Ne7 g8B Bfg7 Bfg6 Bf2 B8f7 Bh4 Bge4 Rg8 Bfg6 Rh8 Qf6 Qf8 Bf3 Rg8 Nb8 Kc7 d8N Kc8 d6 Rh8 Na6 Rg8 Qf4 Qf5 Nf7 Rd8 Qg3 Qg5 Qf4 Qg1 Re4 Qc5 d7+ Kb7 Qf5 Ba4 Be1 Nd5 Re7 Ng4 Qe5 Bf8 Qh8 Bfg7 R4e6 Ne5 Re8 Ne7 Bc3 Bd1 Nb8 Kc7 Bc2 Kb7 Kb3 b1Q+ Ka4 b3 Na6 b2 Bb3 Qc2 Bge4 b1Q Bg6 Rb8 d8B Kc8 Bge4 Qca2 Bbc2 Rb2 Bg6 Qad5 Bd3 Qd7 Bb3 Rd2 Bbc2 Qa1 Kb3 Qb7+ Bb4 Qac3+ Ka2 Qba7 Kb1 Q3c4 Bc3 Qb7+ Bb3 Bc2+ Ka1 Bb1 Bbc2 Q4b4 Bd1 Bc2 Ka2 Qb3+
2kn4/Rr2q3/7N/1Rn2q2/1P1RpBqB/nrbN4/R1qPQ2q/1NR4K w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 a4 fxe4 axb5 h5 g4 Nc6 f4 Nb4 f5 Kf7 Bh3 Ke8 f6 Bf5 gxf5 Na6 Bg4 hxg4 Kf2 Nb8 Ke2 Rh3 Ke1 Rh8 Kf1 Kd7 Kg2 e5 h4 g5 b4 a5 b6 c5 d6 e3 b7 a4 f7 e4 h5 a3 h6 a2 f6 g3 h7 c4 Nc3 e2 Nd5 e1Q Rh3 c3 Qe2 c2 Kh1 g4 Nf4 Qe7 Nd3 Ra3 Rh6 Qf2 Bb2 c1Q Be5 Bg7 f8B Na6 b8R Qf5 f7 Nc5 Rb5 Qc2 Rc1 a1N Bf4 Rb3 Rh2 Kd8 d7 Nh6 Rg2 Rg8 h8N Bc3 Bg7 Re8 f8R Nf7 Rg8 Rf8 Bf6 Re8 Bh4 Rf8 Rf2 g2+ Kh2 Re8 Rff1 Rf8 Rg7 Rg8 Rh7 Rg6 Rf3 Rb6 Rg3 Rb7 Re3 Nd6 Nf7+ Kc7 Nh6 Kb8 Ne5 Nf7 d8R+ Kc7 Rd6 Nd8 Rd4 Kc8 Rg7 Qd1 Rh7 Nc2 Nd3 Na3 Rf3 Qc2 Rff1 Qfg5 Ra1 Qf5 Rfc1 Rb6 Ra2 Rb7 Qd1 Qd5 Ne2 g3+ Kh3 g1Q Qe1 Ba1 Nc3 g2 Nb1 Bc3 Qe2 Qgd1 Kh2 g1Q+ Kh3 Qg4+ Kh2 Qf1 Rg7 Qf2+ Kh1 Qde6 Rg6 Qe5 Ra6 Qef5 Ra7 Qh2+
Qq1rk3/RRB1n3/n1nR2b1/1p2P1P1/b3q3/q2NRB2/q6K/2NRBq2 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 h3 f5 Qc2 b5 Qd1 g5 Rh2 f4 Rh1 Be7 h4 Ra6 Qb3 Rf6 Qd1 Rf5 gxf5 g4 Bg2 Bb7 Bf1 Bg5 hxg5 Bc8 Kf2 h5 a4 c5 e4 c4 d4 h4 d6 h3 e5 b3 a5 h2 f6 c3 d5 b2 a6 c2 f7+ Kd7 f8R Nc6 a7 Qf6 a8R Qe6 Be2 Nge7 Rf7 Ke8 Na3 b1B Bd2 c1Q Nc2 Qa3 Nb4 Bc2 Be1 Ba4 Ra7 g3+ Kf1 f2 Kg2 f1N Bf3 Bd7 Nd3 Nd2 Ne2 Nb3 Nec1 Nc5 Qb3 Rf8 Qa2 Na6 Rb1 Bc8 Rb3 Bb7 Rg7 Qc8 Qa1 Qb8 Kh3 g2 d7+ Kd8 Qa2 g1Q Qg2 Qf2 Rf1 Kc7 d8B+ Kd7 d6 Qfa2 Bc7 Rd8 Rh1 Ke8 d7+ Kf8 Bg3 Ba8 Rd1 Bb7 Be1 h1Q+ Kg4 Qh7 Rc3 Qe4 Kh3 Bc8 Kh2 Bb7 Nb2 Ba8 Re3 Bb7 Nbd3 Bc8 Bg4 f3 Rb7 f2 Bf3 f1Q Rh7 Re8 d8R Bf5 Rd6 Bg6 Rg7 Rd8 Ra7 Qf7 Qa2 Ke8 Qd5 Ncb4 Qa8 Qfa2+ Re2 Nc8 Ba5 Qec4 Rgb7 Ne7 Bb6 Nbc6 Bc7 Q2b3 Re3 Qe4 Bg4 Qbc4 Bf3 Qca2+
1N3q2/1Bk1nNnP/1Rn2N2/1QR3PN/5p1b/nNqRbqBr/nK6/8 w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 a4 cxd4 Bd2 h5 Be3 b5 axb5 h4 Bc1 a6 h3 g5 Qd2 a5 Qd3 Rh5 Qd1 Bb7 Qd3 Bf3 gxh5 g4 Qd2 g3 Qd1 Bg4 hxg4 Ra6 Qd3 Rh6 Qd1 Rh8 Kd2 d5 e4 Kd7 c4 f5 Kc2 a4 b4 a3 e5 g2 b6 h3 g5 a2 b5 d3+ Kb2 d2 c5 f3 e6+ Kc8 b7+ Kc7 e7 d4 h6 h2 c6 d3 Qe2 d1Q Nh3 g1B Bg2 d2 Nf4 f2 Nh5 f1Q Be4 Qd3 e8N+ Kb6 c7 Bf2 c8R B8c5 Nd6 Nc6 b8N Bce3 Nf7 Bh4 Nd7+ Kb7 b6 Ne7 Rg1 h1N Ndf6 Ng3 Rd8 Qc4 Rd3 Qf4 Qf1 Qdf3 Rg2 Kb8 b7 Kc7 b8N Qd6 Rf2 Qd8 Rh2 Qf8 Rh3 Qd4+ Rc3 Rh7 Qb5 Qd3 Rc5 Qc2+ Ka3 d1N Nd2 Nc3 Rb1 a1N Nb3 Na2 Bd5 Qd3 Kb2 Nc2 Bd2 f4 Be1 Ngf5 Bg3 Na3 Be4 Rg7 h7 Rg6 Rd1 Qc4 Rd3 Rh6 Rh1 Ng7 Rb1 Qd8 Bf5 Qf8 Bc8 Qb4 Bb7 Qfe4 Qc4 Ne8 Ka1 Kb6 Nc1 Kc7 Ng7 Qf3 Rb2 Qe1 Rb6 Qb4 Qb5 Qb3 Bf2 Bg3 Be1 Qc4 Nb3 Rh3 Ngh5 Bh4 Kb2 Ng7 Bg3 Qc3+
4B2q/n3Bb1b/pNN3r1/1NRQb3/2P1b2N/4b3/2KR1bNP/bnB4k w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 h5 e4 c5 exf5 a6 d4 cxd4 g4 hxg4 b6 Rh5 b7 Qc7 b5 Qd8 b6 Ra7 bxa7 Rh8 Kd2 Kf7 a8N Kf6 c4 Kg5 f4+ Kh4 f6 g5 f5 e5 f7 d5 f6 d3 Bb2 e4 Bh3 e3+ Kc1 e2 Nd2 e1B Nc7 g3 Ra5 g4 Qb3 d4 Rg5 g2 Kd1 g3 Ba3 Rh6 Bd7 Bd6 f8N Be5 f7 Ne7 Bh3 Bf2 Ne8 Rg6 Nf6 Nd5 Qb4 Nc3+ Kc1 Nb1 Qd6 Be6 Nf1 d2+ Kc2 Nc6 b8N Na7 Ne2 g1B Ne3 g2 Nc6 Qc8 Qd5 d1B+ Kc1 d3 Nc3 Qa8 N6d7 Bc2 Nb6 d2+ Kb2 d1B Rf5 Beg3 Nb5 Bf3 Bg4 Bd6 Bh5 Kh3 Rg5 Bd3 Kb3 Be5 Bc1 Ba1 Re5 Bg3 Rf5 B1f2 Rd1 g1B Ng2 Bge5 Rd2 Be3 Rg5 Bgf2 Rf5 Rg5 Ng6 Qh8 f8B Bf7 N6h4 Rg7 Rg5 Bh7 Be7 Rg6 Kc2 Bfg8 Bca3 B5d4 Qe4 Rf6 Be8 Bf7 Bc1 Rg6 Rc5 Bdb2 Qd5 Be5 Nf5 Re6 Ne1 Rg6 Nd3 Kg2 Ne1+ Kg1 Nh4 Kh1 Neg2 Be4+
q2rn1Bq/1r2K1Q1/B5RN/1qR3R1/P2B2r1/k2n4/2n1BPpn/1b2B2N w - - 0 1 legal: proof: c4 a5 g4 f5 h4 g5 d4 e5 dxe5 d5 b4 axb4 cxd5 Be7 Nh3 fxg4 Ng1 g3 Rh3 g4 Rh1 Bg5 hxg5 Qd7 Rh3 Qe7 Rh1 Qd8 Kd2 Ke7 Ke3 c5 Kf4 b5 a4 h5 e4 g2 g6 b3 Kg5 h4 e6 Kd6+ e7 c4 e5+ Kc5 g7 Kb4 e6 g3 d6 c3 d7 c2 Be3 c1N Nc3 h3 Ne4 h2 Bd4 b2 Ne2 b1R Nd6 g1N Nf7 g2 Nh6 Nd3 Ng3 Nf6 g8B Nc6 Qg4 Ne8 Be2 Nf3+ Kg6 Ra7 Kf7 Rb7 Qg7 Kb3 Rd1 Ncb4 Nh1 Nc2 Kf8 Rb2 Rac1 b4 Kf7 Qa5 d8B Qa8 Ba5 Ka3 Kf8 b3 Be1 Rb1 Rd2 b2 Rdd1 Ncb4 Rc5 Nc2 Rc1 Bd7 Rg5 Bc6 Rg6 Be4 Kf7 Ncb4 Rc6 Nc2 Rc5 Rc1 Rcg5 b1Q Rc5 Qb5 Rgg5 Nc7 e8R Rb1 e7 Rb4 Rd8 Ne8 Rd6 Bh7 Rdg6 Rc4 Ng3 h1Q Kf8 Qh3 Nh1 Nh2 Kf7 Nc7 e8B Rb4 Be5 Rg4 Ke7 Qh4 Bef7 Qh5 Bb3 Qh4 Bgc4 Rd8 Bd4 Ne8+ Kf8 Qb6 Ba6 Qb5 Bg8 Qh3 Re6 Be4 Reg6 Qh4 Nf7 Qh8 Nh6 Bf5 Bdc3 Be6 Be5 Ba2 Bd4 Nc7+ Ke7 Bb1 Rc4 Ne8+ Rc7 Rb6 Rcc5 Rb7+
4K2q/1rR1p2b/3PR1R1/1N1bnb1R/2R2B2/qN2nP1q/Bk2n1BQ/4b3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 cxd5 f5 axb5 fxe4 Na3 a4 Nb1 Ra5 bxa5 Qd6 Qb3 Qd7 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 h5 Kc5 Ke5 g4 a3 d6 e3 b6 h3 d7 h2 b7 a2 g5 e2 g6 e1Q g7 h4 a6 h3 a7 Nc6 a8B Nh6 b8R Ng4 g8R Bh6 Rb4 Ne3 Bg2 Qf1 Ne2 Bg5 d3 Bh4 Qd2 Rh6 Rgg4 Qh8 d8R Bf5 Rc8 Rd6 Rg5 Rd7 Nd4 Bg3 Rg1 h1B Na3 h2 Nab5 Bh4 Rab1 a1Q Rh5 Qa3 Nb3 Bg3 Bd5 Qh3 Qc2 Bh4 Rg6 Be4 Bf7 h1B d4+ Kf4 d5 Ke5 d6 Bd5 Bd2 Bhe4 Re1 Bd3 N5d4 Ke4 Bg8 Ne5 Qb2 Bb1 Nb5+ Kd3 Bc1 c6 Rc7 Bg3 Kb6 c5 Rc4 Bh4 Bc6 Bc2 Kb7 Bb1 Kc8 Bg3 Ra7 Rb7+ Kd8 Bh4 Ke8 Bc2 Rca4 c4 Re2 c3 Rc4 Bb1 Bd2 c2 Bc1 Rb6 Rc7 Rb7 Bd2 c1N Re1 N3g4 Bf4 Ne3 Qa2 Ne2 Qb2 Bde6 Bg2 Bd5 f3 Bg3 Rg1 Be1 Re6 Nc3 Qf2 Ne2 Qg3 Bh7 Qh2 Bc2 Bf1 Bb1 Rgg6 Bc2 Bg2 Bb1 Nc3 Kc2 Nb5+ Kb2 Ra4 Bc2 Nc1 Qb4 Ref6 Qa3 Rd4 Qg7 Ra4 Bde4 Ba2 Bb3 Re6 Bbd5 Rac4 Bf5 Nb3 Qh8+
1BN4N/rq4N1/n2bq1B1/r1nP1RBr/P1R2n2/3Q4/2pnr1NN/K2k4 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 d4 Kf7 Kd2 c5 Kc2 h5 Kb2 b5 a4 e5 d6 e4 d7 e3 f6 Kg6 d5 h4 f7 c4 Qd2 b3 Qg2 f3 Na3 f2 Nc2 b4 Bd2 c3+ Kb1 b2 Rh3 e2 Nf3 e1N Qg3 Na6 Bf4 Nf6 Nh2 Nd3 Ne3 Ne4 Bb8 Qe8 d8B Bd6 Ng2 Nf4 Qd3 Rh7 Rf3 h3 Ra2 Qe6 f8N+ Kg7 g6 Kh6 g5+ Kh5 g7 Nec5 g8N Rha7 Be2 f1R+ Bd1 Rh1 g6 Re1 g7 Re2 Nf6+ Kg5 Ra3 c2+ Ka2 b1N g8N b3+ Ka1 Nd2 Ne8+ Kh5 Ne7 Kg5 Nfg6 b2+ Ka2 Kh5 Ng7+ Kg5 Rc3 b1Q+ Ka3 Qb7 Ka2 Re1 Nh8 Re2 Ng4 h2 Rc4 h1R Ka1 Rh7 Nh2 Rh5 Nc8+ Qee7 Nf1 Kg4 Rf2 Qe4 Bg5 Qe3 Nh2+ Kg3 Qf5 Qe6 Qh7 Ng6 Rf7 Nf4 Qd3+ Kf2 Rf5 Re5 Nh4 Ke1 Bg4 Re2 Ng2+ Kd1 Bf3 Rh4 Bh5 Rh3 Bg6 Rh5 Qe3 Nc7 Qd4 Ra5 Qc3 R8a7 Qd3 N7a6
b1b4k/5r2/RrRB1p1P/qbqB1P2/5R1Q/2r2nNK/1R4rR/bB2N3 w - - 0 1 legal: proof: b4 d5 h4 c5 g4 h5 e4 dxe4 bxc5 b5 a3 g5 a4 Nd7 axb5 Ndf6 Ke2 gxh4 Ke1 h3 Nf3 h4 Ng1 Nh5 gxh5 Rh7 Qg4 Rh6 Qd1 Rh8 f4 e5 Kf2 a5 c4 e3+ Kf3 a4 d4 h2 Kg2 a3 b6 e2 f5 e1Q h6 e4 c6 a2 b7 e3 b8R e2 c5 Qd5+ Nf3 Qa5 c7 e1R c6 Ne7 Kh3 Bg7 Rb2 Kf8 Bf4 Kg8 Qa4 Re6 Bd3 Rh7 Bd6 Ng6 Nc3 Ne5 Ne1 Nf3 Bb1 Qdc5 d5 Kh8 Ne2 Rf6 Rf1 h1B Ng3 Ra6 Rff2 Rg6 Rh2 Rb6 Qb4 Bd4 Qc4 f6 Qa4 Bd7 c8B Rf7 c7 Bb5 Be6 Rgg7 c8R+ Rg8 Rc6 Rc8 Kg4 h3 Rhf2 h2 Kh3 Be5 Qh4 Rg8 Rfd2 Rg4 Re2 Rc4 Re4 Rc3 Rf4 Bd4 Bf8 Be5 d6 Bd4 d7 Bg2+ Kg4 h1B d8R Bgf1 Rh2 Ba6 Rb2 Bfb5 Kh3 Bc8 Rh2 Be5 Rdd2 Bd4 Bd6 Be5 Be4 Bd4 B6d5 Be5 Rb1 a1R Rdb2 Ra2 Ra1 Bd4 Bb1 Be5 Rbb4 Rg2 Rb3 Rd3 Raa3 Ba1 Rb2 Rc3 Raa2 Qab4 Ra7 Qa5 Ra6 Re2 Bde4 Nd4 Rc7 Bf3 Ba8 Rg2 Bb7 Bfc6 Ba8 Nf3 Bb7 B6d7 Bd5 Bb7 Rc6 Ba8 Bc7 Be6 Bd6 Bc8
1k3Nq1/1bpr4/2q3n1/1P1R1BN1/1K1QrR2/3r2R1/q1PrRBb1/B3qR2 w - - 0 1 legal: proof: f4 b5 e4 f5 a4 d6 e5 dxe5 axb5 exf4 g3 f3 Kf2 f4 Ke1 f2+ Ke2 Qd4 Nh3 Qd6 Ng1 Qd8 Nc3 g5 Nb1 Kd7 Kd3 f3 Kc3 Ke8 Na3 Bh6 Nb1 Nd7 h3 Ndf6 h4 g4 Ra3 Nh5 Ra1 Bg5 hxg5 Nf4 gxf4 Qd5 Ra2 Qd7 Ra1 Qd8 d4 Kd7 b4 h5 b6 e5 b5 a5 b7 g3 b8R h4 g6 a4 d5 e4 g7 g2 d6 a3 f5 h3 f6 a2 f7 e3 f8R h2 Nh3 g1R Rf4 e2 Qd4 e1Q+ Nd2 Ne7 g8R Rg3 Kb4 Rh4 Bb2 Bb7 Rd1 a1Q Bd3 f1R Ng5 f2 Ne6 Qa2 Ba1 Ng6 Bf5 Rd3 Rc8 Qf8 Re8 Rd8 Re7+ Kc8 d7+ Kb8 Rg7 Qf6 Nf8 Qff7 Re2 Qg8 Rg1 h1Q Rg3 Rh3 Rf7 Rh7 Rf6 Re8 d8B Rd7 Rd6 Qe4 Bh4 Qc6 Rd5 Re4 Rb1 Rg1 Rc1 f1B Rb1 Rc3 Nf3 Rg2 Ng5 Rh2 Rd1 Bg2 Rc1 Qf2 Rf1 Rd3 Rgg4 Qe3 Bf2 Qc1 Rg3 Qe1+ Bc3 Rd2 Ba1 Rh3 Rgg4 Rhe3 Rg3 Red3
3Rq3/2RbR1NR/nb2R1q1/P6N/N2Qq1qP/1Bp2b2/1K1n2q1/B3kq2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 h5 g3 a5 Nc3 axb4 Nb1 h4 Nf3 b5 Ng1 g5 Nh3 g4 Ng1 Ra3 Bg2 h3 Bf1 Rh4 gxh4 g3 Qa4 g2 Qd1 Rg3 hxg3 Bc5 Nf3 Be7 Ng1 Bf8 e4 Kd7 d4 Kd6 Kd2 f5 Kc2 c5 a4 f3 g4 f2 g5 f4 a5 h2 g6 f3 g7 b3+ Kb2 b4 Bc4 f1Q Nc3 f2 Nge2 g1Q Nf4 Bd7 Na4 Qgg5 Nh5 Qfg2 Re1 Nf6 g8R h1B Rh8 Qe8 Rh7 f1Q+ Qd2 Na6 e5+ Kc7 e6 Kd6 e7 Q5g4 Qf2 Ne4 Bd2 Bg7 Bc3 Nd2 Rac1 Bh6 Re2 Be3 Ree1 Qgg1 Re2 Bf3 Rc2 Qg1g2 Qg1 Kc7 d6+ Kc6 Bf7 Kb5 d5 Bf2 Re6 Kc4 Bg7+ Kd3 Rc4 Qg8 e8N Qh8 Be5 Ke2 Neg7 Ke1 Re7 Qe8 Rc2 Bb5 d7 Bc6 d8R Bd7 d6 Be3 Ka1 b2+ Ka2 Bd4 Bb3 c4 Rc8 Bb6 Qd4 Qd3 Rc3 Qdg6 Rc7 Q6e4 Bd1 b3+ Ka3 b1Q Re3+ Kf1 Re6 b2 Bb3 Qd1 Bf6 b1Q Re2 Qbd3 Kb2 Qe1 Re7 Qe4g6 R2e6 Qee4 Be5 Ke1 Bf6 Bc6 d7 Qdf1 d8R Bd7 Qc5 Qff2 Bc3 Qff1 Qd4 Q4h3 Ka3 Qhf5 Ba1 Qfg4 Kb2 c3+
B6q/2B4r/2QNN1b1/b3r2P/1krNRb2/2bpNR1K/1B4P1/1qq1r1N1 w - - 0 1 illegal: No proof kernel
5r2/1R1bkbnn/R1b3RR/3PBR1q/3p4/p4P2/1KN1Q1rB/BnNq4 w - - 0 1 illegal: No possible last move, all moves rejected
nq1RR1r1/B3N3/2N1rk2/2P1p3/bR1q1P2/RB1qp3/4r1NK/1b1n1R1Q w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 g4 b5 axb5 fxe4 Be2 a5 Bf1 h5 gxh5 e6 b3 a4 b4 Bd6 Bd2 Bc7 Bc1 Ba5 bxa5 Qb6 Bg5 Qc7 Bc1 Qd8 h4 Ke7 c4 d5 f4 g5 Kf2 e3+ Kg3 d3 a6 d2 a7 g4 b6 d4 b7 a3 h6 a2 h7 Nf6 h5 Nbd7 b8N Nb6 h6 Re8 h8R Nfd5 h7 Kf6 Kh2 Nc3 Nc6 d3 Nf3 e5 Ne1 Be6 Bb2 Qb8 Ng2 Bf5 Ba3 Bg6 Bc5 Re6 Re8 Be4 Qe1 d1Q h8R d2 Rd8 Qc2 Rhe8 Nd1 Nc3 Qd3 Rb1 a1Q Rb4 Qb2 Be2 Bh7 Rf1 Be4 Nb5 Qbd4 Nd6 Bg6 Nf5 g3+ Kh3 Bh7 Nfe7 Be4 Bf3 Bg6 Bd5 Bh7 Nh4 g2 Kh2 g1R Ng2 Be4 Nh4 Rg8 Ng2 Nc3 Qc1 d1B Qb1 Ba4 Qa1 Qb7 Qb1 Rc8 a8R Qb8 Ra6 Na8 Ba7 Nd1 c5 Rc7 Bb3 Rd7 Nc8 Rdg7 N8e7 Rg3 Ra5 Rf3 Qc1 Rf2 Qb1 Re2 Qa1 Bb5 Ra3 Ba4 Rf3 Nc3 Qh1 Nd1 Rf1 Q3c4 Kg1 Bb1 Kh2 Qcd3
5K1q/3BnPN1/1Rb3B1/kP1R2p1/6r1/1r1NprB1/N3QB1q/2b2nBn w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 h6 Qe2 Bb7 Qg2 gxf4 g5 Ba6 g6 Bc8 Qg5 hxg5 b6 Kd7 Ke2 c5 Kf3 a5 Ke4 e5 b4 a4 d4 f3 h4 c4 h5 c3 b7 Kc7 g7 Kb6 d6 f2 Kd5 a3 d7 a2 Ke6 c2 Kf7 e4 h6 Rh7 b5 Qc7 f6 Ba3 d5 Qh2 d8N Qh3 d6 Qe3 d7 Qd2 Nc3 Na6 b8B Bb7 Nf3 Ne7 Kf8 Bd6 g8B Bg3 f7 Bc8 Ne6 Bc7 d8Q Nc5 Ne5 Ra3 Qd3 Bd6 Bh3 Rb3 Rd1 f1N Bf5 Qg2 Be3 Bd7 Bg1 c1R Qe2 Bc6 Rd5 Qh2 Nd3 Bf4 Be5 Be3 Bd4 Bd2 Bdf2 e3 Bg4 Ne4 Bh3 Rg7 h7 Neg3 h8B Nh1 Bh7 Rg6 Be5 Rf6 Beg3 Rf5 Bg6 Rf3 Nb1 Rc4 Nc3 Rcb4 Bhf5 Rg4 Rc1 a1Q Na2 Ba8 Rc6+ Ka5 Rcd6 Bc1 Rb6 Rgb4 Bg4 Bc6 Bh3 Qd4 Bhf5 Qdh4 Ng7 Rg4 Bd7 Qh8+
Nk1B1Kn1/1q2PB2/2B2r1B/1Q1prbn1/1Nn1pN2/4B1bP/6qr/4R1R1 w - - 0 1 legal: proof: d4 b5 a4 c6 d5 cxd5 axb5 Ba6 Bf4 Bb7 Bc1 Bc8 e4 h5 g4 Nc6 gxh5 Nb8 f4 e5 fxe5 dxe4 Kd2 g5 Kc3 a5 Kc4 f5 Kd5 a4 b4 f4 c4 f3 h6 g4 h3 g3 b6 g2 h7 a3 b5 f2 e6 a2 c5 d6 b7 Nd7 b8N Ra3 e7 Bh6 Ke6 d5 c6 Ra8 b6 Qc7 b7 Ra5 Qa4 Qh2 c7 Be3 Nd2 Bc5 Ne2 g1Q Na6 Qgg3 b8B Bd6 Rg1 Qb3 Nc4 Bg3 Nb4 Ra6+ Nb6 Qg2 Nf4 Qb2 Bd3 f1N Bb5 Nd2 Bc6 Nf3 Na8 Qb1 Qb5 Ng5+ Kd6 Qbb2 Be3 Rb6 Rab1 a1R Rbe1 Ra2 Ba7 Nf3 Ke6 Ng5+ Kf5 Qb3 Kg6 Rf2 Kg7 Rd2 Bb7 Rf6 Bab6 Qb1 Qc4 Ne5 Bc6+ Bd7 c8B Re2 Qc5 Nc4 Bd8 Rf2 Nbd3 Qb7 Nb4 Qh1 Qb6 Rh2 Qb5 Qg2 Bc1 Nh6 Be3 Rhf8 h8B Ng8 Qa6 Re6 Qb5 Re5 Kg6 Ne6 Bg7 Rf6+ Kh7 Ng5+ Kh8 Kf7 Bh6 Bf5 B8d7 Rg6 Be8+ Kf6 Nh5+ Ke6 Bf7+ Kd6 Nf4 Rge6 Kg7 Rf6 Ba5 Nb6 Kf8 Nc4 Nb6 Kc7 Na8+ Kc8 Bd8 Kb8
3B2Q1/p2qRqB1/nK4b1/r1P1b2R/2k2N2/R1q4B/1nPp1N1b/1BBr4 w - - 0 1 illegal: Other
3K1QbN/2B2BRP/3nprr1/1pR5/1PR1q1R1/b4nNr/3n3k/R4r1B w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 d5 g4 c5 gxh5 a4 Qb3 axb3 d4 cxd4 cxd5 Rh6 Ba3 Rh7 Bc1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 b5 f4+ Ke4 h4 g5 a4 g4 a5 d3 d6 d2 f6 d1R d7 b2 a6 g3 f5 g2 a7 Rh7 h6 Ke5 h5 Ke4 f7 Bb7 f6 Qe8 Kb6 Rd4 Kc7 Rg7 d8R Rd6 Nh3 Kf3 Nf4 Kg3 Rd7 g1N Nd2 b1R Rh4 Nc6 Bc4 Rb8 a8B Rb3 Nf1+ Kf2 Ng6 Kg2 Bf4 Rh3 Ng3 Ne5 Rg4 Re6 Rd4 Kh2 Bd5 Bc8 Rc4 Rd6 Bh1 Be6 Bad5 Ra6 h7 Rd8 h8R Ngf3 Re4 Nh6 Rg8 Nc4 Nh8 Nf5 h6 Rg6 h7 Bh6 f8R Bg5 Rg7 Bg8 Be6 Rd1 f7 Rf1 Be5 Qc6+ Kd8 Bc1 Bc7 Ncd2 Rc4 Qe4 Re8 Rc6 f8Q Ba3 Bf7 Rce6 Kc8 Ra6 Rd8 Rae6 Rd5 Nd6+ Kd8 Ref6 Rdc5 e6
N1b1r3/pR4p1/4n2P/1q4rk/1B1Rnb1q/K3Qr1B/PR6/1B1B1NrB w - - 0 1 legal: proof: c4 d5 cxd5 c5 dxc6 h5 f4 e5 b4 exf4 d4 Qd7 g4 Qe7 d5 Qc5 bxc5 hxg4 Kd2 f5 Kc3 Kf7 Kb2 Kg6 e4 b5 h4 f3 c7 b4 c6 b3 h5+ Kf6 h6 Kg6 e5 g3 d6 f4 e6 f2 e7 f3 e8B+ Kf5 d7 Kg4 d8R g2 Nd2 Ba6 c8B+ Nd7 c7 Bd3 Rh2 Rb8 Bg6 Bb4 Qe1 Ba6 Bb1 Bd6 Ne2 g1R Nc3 Bf4 Qe3 Nf6 Na4 Re8 Nb6 Ne4 Ka3 b2 Bg2 f1R Na8 f2 Bh1 Rb5 Bb7 Kg5 c8B Ndc5 Bh3 Ne6 Rd4 Kh5 Bc6 Rc5 Ba4 Rcg5 Bac2 Bc8 Bd1+ R1g4 Rg2 Rg1 Rh2 f1Q Re2 Qg2 Nf1 Rg3 Bd2 Qf2 Bb4 Rf3 Rc2 Qe1 Rc7 Qh4 Rb7 Nf2 Bh7 b1Q Be4 Qc2 Rb1 Qc5 Rb2 Qb5 Bb1 Ne4
4R2b/bq4R1/3KB1BB/B2N3p/1b1pnP2/4RrNb/k2b1rQP/B3r3 w - - 0 1 legal: proof: f4 c5 e4 f5 exf5 e5 b4 b5 d4 cxd4 a4 e4 axb5 Na6 g4 Nc5 g5 Qxg5 bxc5 Qd8 Ke2 Ke7 c4 a5 c6 Kd6 b6 Kc5 c7 Kb4 c5 d5 b7 g5 b8B a4 c6 e3 Kd3 a3 f6 a2 f7 g4 Nh3 e2 Nc3 e1B Qe2 Kb3 Ba7 g3 Ng1 g2 Bb2 Bb4 f8B Qd7 Bb6 Nf6 Bh6 Ne4 Ba5 Bd2 Re1 a1B Qg4 Ra6 Nge2 g1B Ng3 Re8 Re3 Nc5+ Ke2 d3+ Kf3 Bf2 Rg1 Qe7 Qg8 Bh3 c8B Qb7 c7 Rg6 Be6 Rc8 Nf5 Rg2 Ng3 Ra8 c8R Ra6 Na4 Ka2 Nb6 Ra8 Re8 Rb8 Bc1 Bh8 Bb2 Rc8 Ba1 Rc7 Bg5 h5 Bh6 Re7 Bf5 Re4 Be6 Rc4 Qg5 Rc3 Be2 Bc1 Qg7 d2 Bd3 d1R Bg6 Re1 Ne2 Bh4 Ng3 Bd2 Qg8 Rb3 Qg7 d4+ Nd5 Bd8 Qg8 Bb6 Qg7 Na6 Ke4 Rf2 Ke5 Nc5 Kd6 Rd3 Qf6 Rc3 Qg5 Ba7 Qg4 Rd3 Qf3 Ra3 Qg2 Rc1 Nh1 Bb6 Rc3 Re2 Qf2 Bf5 Bgf7 Rce1 Rg7 Bh3 Ng3 Ba7 Qg2 Rf2 Bg6 Rb3 Rc1 Rd3 Rc3 Rdf3 Re3 Ne4+
R2N2k1/3NpbPn/1prR1b1B/1PnB1B2/nn6/5KRb/3B2Qn/q5B1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 gxh4 b4 c5 d4 d5 cxd5 c4 b5 Ra6 Qd2 Rc6 Qb4 Rc5 dxc5 axb4 Ke2 Kf7 f4 h5 a4 c3 g4 b6 f6 h3 d6 h4 g5 c2 g6+ Ke6 f7 h2 d7 h3 c6 b3 c7 b2 a5 Ba6 c8B Nc6 f5+ Kf6 Bg2 Kg7 Nf3 Rh5 f6+ Kh8 Ng5 Bb7 a6 Qe8 d8R Bg7 f8B Nb4 f7 Bf6 a7 Bd5 a8Q Rh6 Na3 b1N Rg1 h1B Bf5 h2 Bd2 c1N+ Kf2 Qc6 Rd6 Nb3 Nc4 Nc5 Ne6 Nc3 Ne5 N3a4 Nd7 Bc4 Bd5 Bg2 Kg3 Bh3 Nd8 h1N+ Kf3 Nf2 Rg3 Ng4 Be3 Qc8 Bg1 Qa6 Qc6 Rh7 Bh6 Nh2+ Kf4 Ba2 f8B Qa5 Bg5 Rh4+ Ke3 Rc4 Bfh6 Qa8 Kf2 Rc1 Bd2 Rc3 Bg2 Bf7 Bd5 Nb2 Rd1 Bd4+ Re3 Ne6 Ba2 Nf6 g7+ Kg8 Ra1 Nh7 Qg2 Bf6 Bd5 Rc6 Rg3 Nc5 Ke2 Qa3 Ra2 Qc3 Ra8 Nba4 Kf2 Qa1 Ke3 Ng4+ Kf3 Nh2+
1bq3rk/1r1b1Rr1/Q4rP1/R2NPN2/4N3/p1pBR1K1/n2N1N1r/4B2q w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 a5 e4 f5 d4 Kf7 d6 Kg7 d7 h5 b6 c5 b7 a4 b8N h4 d5 h3 e5 g2 Kf2 c4 d6 f4 b5 c3 g6 h2 b6 f3 b7 Ra6 Bd3 Rh5 Kg3 f2 Nd2 f1R Nc6 Ra7 b8N Rh8 Na6 Ne7 Nab4 Nd5 Nd4 Rg8 Nf5+ Kh8 Nh3 a3 Qe2 Qe8 d8N Bd7 Nb7 Qc8 Nc5 Rb7 Rg1 h1R Nce4 Rh2 Nhf2 Be7 Ra2 Bd8 Rc2 Bc7 Ra2 Rd1 Re1 Bb8 Qf1 Rg7 Re3 Rg8 Qe2 Rdh1 Ra1 Rh7 Ra2 Rhg7 Ra1 Rh2 Qf1 Nc7 Nd5 Na6 Qe2 Nb4 Rb1 Na2 Rb5 Be8 Ra5 Bb5 d7 g1R+ Kf4 g3 d8R g2 Rf8 Rf1 Kg3 Bd7 Rf7 Rhh7 Nb3 Rh5 Bd2 Rh2 Be1 g1Q+ Kf4 Re8 Nbd2 Qh1 Kg3 Reg8 Bb1 Rhh7 Qa6 Rh2 Bd3 Ba7 Nh3 Rf4 Nhf2 Bb8 Nh6 Rf6 Nf5 Qe8 Bf1 Qd8 Bd3 Qc8
KNbb3k/P2NB1q1/2N3bB/6rb/1p3P2/R2b1rn1/2p2qB1/R2NN2Q w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 f4 exf4 axb4 Na3 g6 Nb1 g5 f3 g4 h4 gxf3 g4 Nc6 h5 Ne5 g5 Ng6 hxg6 Bg7 Ne2 Bh6 Ng1 Bf8 Kf2 c5 Ke3 h5 Ke4 e5 a4 b5 d4 c4 a5 h4 a6 h3 d6 b3 Kd5 f2 Kc6 c3 d7+ Ke7 a7 h2 g7 Kf7 d5 e4 g6+ Kf6 d6 b2 Bg2 f1B Nf3 e3 Ne1 b4 Ra3 Nh6 g8N+ Kg7 Nf6 Qe7 d8B e2 Nd7 Nf5 Nb8 Ng3 d7 Rh3 Qd5 Qf7 Be7 Kh8 d8N Qg7 Rg1 h1B Be3 c2 Nc3 b1B Nd1 Ba2 B3c5 Bb3 Bg5 Be7 Bh6 Bc4 Kb6 Bd3 Ndc6 Bf6 Be7 Bdf5 Nd3 e1Q Qe4 Qd2 Ne1 Qf2+ Kc7 Bd3 Rf1 Bcd7 Kb7 Bg4 Rg1 Bh5 Qd5 Ne2 Qe4 Rf3 Rf1 Ng3 Qd5 Qf8 g7+ Kh7 Bh3 Bd4 g8N Bb6 Nf6+ Kh8 Ng2 Re3 Nc3 Bhe2 Na6 Bh5 Rfa1 B7f5 Ne1 Bhe4 Nd1 Rc8 Nd4 Qg7 Nb8 Rc5 Ka8 Bc8 Ndc6 Beg6 Qh1 Rg5 Bg2 Rf3 Nfd7 Bd8
N1R5/p3Rr2/1RN2pq1/r1qRBP1R/2n1qK1b/2b1P3/2B3qB/1Q4qk w - - 0 1 legal: proof: a4 b5 axb5 c5 b4 cxb4 g4 e5 d4 exd4 g5 Bd6 g6 Bf8 h3 f6 Bh6 Nc6 Ra4 Ke7 Nf3 Bb7 Ra1 Ne5 Ng1 Bd5 Bc1 Bf7 gxf7 g5 h4 g4 Qd2 Ng6 Qd1 Nf4 Bb2 Nh3 Bc1 Ng5 hxg5 Bg7 Rh2 Bh6 Rh1 Bf8 Kd2 Kd6 f4 Kd5 c4+ Ke4 g6 d5 g7 h5 e3 g3 b6 h4 c5 h3 c6 g2 c7 h2 c8R b3 b7 d3 b8R b2 Rc5 d4 Ra4 Qd5 Rc6 Qc5 Rc7 Nh6 g8R Nf5 Ra3 Nd6 Ne2 Kf3 Rb6 g1B Ra5 Rh5 Na3 b1Q Re7 Bf2 Bb2 Bh4 Nb5 Rd5 Qc1 Nc4+ Kd1 d2 f5 Qd3 Qb1 Rb8 Ba1 Rb7 Nc7 Kf2 Na8 Rc7 Rhg1 h1Q R1g5 Qg2 Rh5 Qg6 Rab5 Qe4 Rgh8 Qeg2 Kc2 d3+ Kc3 d1Q Nd4 Kg1 Nc6 d2 Bd3 Qh1 Bc2 Qhg2 Ra5 Re5 Kd3 Kh1 Rg8 Qdg1 Bc3 Bh6 Rc8 Bf4 f8B Bg3 Bh6 Be1 Bf4 Rb7 Bh2 Rc7 Ree8 Rf7 Re7 d1Q+ Bd2 Qdf3 Bc3 Qfd5+ Bd4 Bc3 Rab5 Q2g5 Ke2 Qd8 Kf3 Qg2+ Kf4 Rd5 Be5 Qd7 Bb8 Re5 Ra5 Qd3 Bd6 Qb4 Rd5 Qa3 Rd4 Ra5 Rd5 Qc5 Be5 Qde4+
2b1b1rk/3q2N1/q4RK1/Rp2B3/r1N2P1q/p1N1NnbB/2P3Nb/4Q2R w - - 0 1 illegal: No possible last move
Q6R/Nn1n1p2/2rN1BNP/1q1n2r1/1Rp3P1/kN1r4/1qn5/2K1BRNb w - - 0 1 legal: proof: f4 b5 c4 g5 a4 gxf4 axb5 d5 cxd5 Bd7 e3 Bg4 d6 Bc8 d4 h5 g3 h4 Bg2 Bg7 d5 Bd4 exd4 h3 Kd2 hxg2 Ke2 Na6 Ke1 Nb8 Kd2 Kd7 b4 a5 h4 e5 b6 c5 h5 c4 g4 f3 b5 a4 b7 f2 b6 f1R Qf3 a3 h6 Na6 b8R e4 b7 a2 Ba3 Qb6 Bb4 Rf2+ Kc1 e3 Nd2 e2 Rb1 e1N Nb3 Nc2 Be1 a1Q Qe4 Rf5 Qf3 Kd8 d7 Ke7 d8B+ Kd6 Bf6 Ne7 Qe4 Be6 Rg8 Bc8 b8N Rg5 Nc6 Qb5 Ne5 Bb7 Ng6 Nc5 Rf8 Rc8 Re8 Kd7 d6 Rc6 d5 Ba8 Rf8 Nb7 Rb8 Rhc8 Qf3 R8c7 Rh8 Rc8 Qe4 Rd8 Qf3 Kc8 d7+ Kc7 d6+ Kb6 Qe4 Nd5 Qf3 Rg8 d8N Qb2+ Kd2 Re8 d7 Re3 Kd1 Rc5 Nc6 Rd3+ Bd2 Ka6 Na7 Rc6 d8N Kb6 Nh3 Ka6 Rf1 g1N Qg2 Nf3 Ng1 Ne5 Qh1 Na5 Nb7 Nd7 Nd6 Nb7 Qg2 Rh3 Be1 Rd3+ Nd2 Ka5 Qe4 Qa2 Kc1 Ka4 Rb4+ Ka3 Nb3 Rc7 Qe8 Nc3 Bh4 Nbc5 Rd1 Bh1 Qa8 Nb7 Bf2 Rc6 Rf1 Nd5 Be1 Qb2+
1B1B1nbr/q3P1pN/3K3B/R1B2NQp/Pq3q2/1r2n1rk/1R1r4/2B2R2 w - - 0 1 illegal: No possible last move
r2n2N1/1Npn1q1n/2B5/BKP3p1/3n3q/P2N3B/1bRb3k/NQ1q1RN1 w - - 0 1 legal: proof: d4 f5 b4 e5 g4 a5 e4 axb4 dxe5 fxe4 f4 Ke7 f5 Kf7 f6 Ke8 Be2 b5 Bf1 Bb7 h3 Bd5 h4 g5 h5 Be6 Nf3 Bf5 Ng1 Bg6 hxg6 Ra3 Be2 Rf3 Bf1 Rf5 gxf5 Be7 Qd5 Bd6 Qd1 Bf8 Kd2 d5 c4 Kd7 f7 h5 g7 b3 Kc3 d4+ Kb2 b4 e6+ Kd6 a3 Ke5 e7 e3 e8B Kf4 c5 Kg3 f6 d3 Bb5 d2 Qc2 d1Q Qd2 h4 Qd4 e2 Be8 e1B Beb5 h3 Qe4 h2 Bh3 Q8d7 Nd2 Nc6 Qc2 Nd8 Qb1 Bd6 f8N Qf7 Ra2 Bf4 Ndf3 Bed2 Nd4 Bd6 Ng6 Be5 Bhd7 Kg2 Nf4+ Kg3 Nd3 Kg2 Nh3 Kg3 Rf1 h1Q Be6 Kh2 Ng1 Qe4 Bc6 Qee1 Ka1 Qh4 Rc2 b2+ Ka2 Qf3 Kb3 Qd1 Ka4 b3 Qa1 b1N Kb5 b2 Nb3 Bd4 Bh3 Nc3+ Ka6 Ne4 Qb1 Be5 Na1 Bc3 Kb5 Be5 Qa2 b1N Bb2 Bd4 Bc3 Be5 Ba5 Nbc3+ Kb4 Ne2+ Kb5 Bb2 Qb1 Qd5 f7 Ngf6 f8N Qf7 g8N Nd7 Ne6 Nef6 Ng7 Nh7 Ne8 Qf5 Nd6 Qf7 Nb7 Nd4+ Ka4 N8e6 Ne7 Ra8 Ng8 Nb3+ Kb5 Nd8 Bg4 Ndf6 Bf5 Nd7 Bh3 Nd4+
RB2q2B/1RrP1k1r/1RN2P2/B1B4p/p2N3n/7Q/r1n2B1r/1r1r1Kb1 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 Na6 axb5 Nb8 d6 Be6 Bd3 Bg4 Bf1 Bc8 d4 f5 d7+ Kf7 d5 Nf6 d6 Ng8 Bd3 Bb7 Bc2 Bd5 exd5 Qc8 Bd3 Qd8 Be4 fxe4 b4 a5 f4 h5 g4 e5 f5 c5 b6 c4 b5 c3 b7 h3 b6 a4 g5 c2 g6+ Kf6 g7 h2 Nd2 e3 Bb2 c1R Ngf3 e2 Rb1 Nc6 b8B Qe7 d8B Nd4 b7 e4 d7 Rc4 d6 Rc2 Nb3 Kf7 Bb6 Rh7 d8B Qe8 d7 Nh6 g8R Bc5 B8a7 Rc8 b8B Rc7 Na5 Rd2 Kf2 Nc2+ Nd4 Ne1 Nc6 Rc2 Rhg1 h1R Qd3 Rh2+ R1g2 Rd2 Qh3 e3+ Kg1 Rc2 R2g6 Rd2 Ba1 Ra2 Ba5 Bb6 Bf6 Bc5 Rb7 Bb6 Bh8 Bc5 f6 Nf5 Rg5 Nh4 Rb6 Nd3 Rf5 e1R+ Rf1 e2 Rb7 Bb4 Bc5 Rb1 Bc3 Ba3 Be1 Rd1 Bf2 e1R Rb6 Rb1 Rb7 Red1 Re1 Bc1 Kf1 Be3 Rb6 Rdd2 Rc1 Ne1 Rc4 Rd3 Rcb4 Rdd1 Rb7 Qe7 R4b6 Qe8 Bg3 Bg1 Bf2 Qe6 Ba7 Qe4 Ra8 Qe8 Bb8 Nc2+
3b1qqB/B2R4/Qn1NPRqq/b1Pq3p/N2NN1N1/1p1B4/5K2/kb2r3 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 Kd2 cxd4 Ke1 e5 fxe5 f4 Ba3 g5 Bb2 b5 Bc1 Nc6 h3 Nce7 h4 Nf5 gxf5 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Bb7 Rh3 Ba6 Rh1 Bc8 c4 Kf7 e4 d5 a4 h5 f6 Ke6 f7 f3 a5 f2+ Ke2 b3 g6 g3 a6 d3+ Ke3 d4+ Kf3 g2 a7 b4 a8N b2 g7 b3 Ra3 d2 Qe2 d1Q Be3 d3 Ra7 d2 Rd7 Bb4 f8B Nf6 g8N Qc1 Ba7 d1Q Nb6 Qd5 Na4 Ba5 Nbc3 b1Q Bg7 Qh6 Rh3 Rh7 Bh8 Re7 Rh4 Ba6 Rf4 Re8 Ke3 Qc8 Nf3 g1B Qa2 Bb7 Bd3 f1Q+ Qf2 Bh2 c5 Bg3 Qd2 Bh4 Qa2 Re7 Qa3 Qcf8 Qa1 Qg2 Qa2 Qgg6 Ke2 Bg5 Kf2 Qc1 Qa1 Qhg7 Nh6 Qgg8 Ng4 Bc8 Rd8 Nd7 Qa3 Nb6 Rd7 Bf6 Rf5 Qch6 Nd4+ Kf7 Qb4 Bb7 Qb5 Bc6 Qa6 Bb5 Be2 Bd3 Rf4 Bb1 Bd3 Qg6h7 e6+ Kg6 e5+ Kg5 Nb2 Q7g6 Rf3 Re8 Nba4 Bd8 Rf6 Re7 Nf5 Re8 e7 Kf4 Nb5 Bc7 Nbd4 Bd8 Bc4 Ke4 Bb5 Qc4 Nd6+ Kd3 Ne4 Qd5 Nf5 Kc2 Nd4+ Kc1 Ng5 Qb7 Ne4 Qcg8 Bd3 Qbd5 Nac3 Kb2 e6 Ka1 Na4 Bc7 Ng5 Ra8 e8N Bd8 Ne4 Rb8 Nb5 Nc8 N8d6 Rb6 Ng5 Rb7 Nbc3 Rb4 Nf3 Re4 Nd4 Re1 Nce4 Nb6
2Q2r1k/2p2rnr/PN2q2B/1BR5/rNnp4/B4R1B/B1q2Pq1/2n3KN w - - 0 1 illegal: No possible last move, all moves rejected
N7/1BQ2K1n/1Bb1N1b1/Nq1k1p2/p6b/R1R1bPbn/b1P2N2/4Nn1R w - - 0 1 illegal: No possible last move, all moves rejected
2B1K1QN/1q2BNR1/1N1prq2/P7/rbb1p1PN/7k/RN1pR2n/n2r4 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 b5 hxg5 c5 d4 cxd4 b4 axb4 cxb5 Ra7 Bc4 Ra6 Bf1 Ra8 Kd2 Kf7 Kd3 e5 Kc4 h5 Kd5 b3 f4 h4 a4 d6 g4 b2 f6 Kg6 b6 h3 f5+ Kf7 a5 e4 b7 h2 g6+ Ke8 g7 Kd7 f7 d3 f6 Na6 b8R Nh6 g8N Rh7 Qb3 Bg7 Nc3 b1Q Na4 Nc5 Bg5 d2 Nf3 Nf5 Nb2 Rh3 Nh4 Nd4 Ra2 Ba6 Nh6 Nf3 f8N+ Ke8 Kc6 Bc4 Rg1 h1R Rg2 Nh2 Nf7 Rd3 Rf2 Rd4 Nfg6 Rg1 Bd3 Rd1 Ngh8 Ra7 Rb4 Re7 Re2 Re6 Rb7 Kf8 Ra7 Kg8 Qb8 Nb3 Rc7 Qf8 Kd7 Kh7 Qd8 Na1 Qa8 Bd5 Ba6 Ra4 Bc8 Bc4 Ra7 Bh6 Qb8 Qg7 Kd8 Qg6 Re7 Bg7 Ke8 Qf5 Nh6 Qf1 f7 Bc3 Qb3 Kg7 f8N+ Qf7+ Kd8 Bb4 Nd7 Kh7 Nb6 Qg7 Rc7 Qf7 Be7 Qf6 N6f7 Kg7 Ne5 Kh6 Ke8 Kg5 Nef7+ Kf4 Qc2 Kg3 Qb3+ Bd3 Qd5 Bc4 Qg5 Kh3 Qg8 Re5 Rc5 Re6 Rg5 Qd3 Rg6 Qd5 Rg7 Qb7
4N3/k1bBn3/1p1p1q2/Bq1R1r1r/2p1rn1R/nN6/N1P2P1R/KN1N1Q2 w - - 0 1 legal: proof: b4 e5 h4 f5 e4 g5 exf5 gxh4 d4 b6 dxe5 Nc6 b5 Nb8 a4 Ba6 a5 Bc8 a6 Bb7 axb7 a6 Nh3 axb5 Ng1 b4 Kd2 h5 g4 c5 g5 d6 f6 Kd7 f7 Kc7 e6 b3 Kc3 c4 Kb2 h3 g6 h2 g7 h4 e7 h3 Ne2 Na6 b8N Kb7 e8N Ka7 Nec3 Rh5 Bd2 Ne7 g8R Rf5 Rg4 Bh6 f8N Bg5 Ne6 Bh4 Na2 Nb4 N6g7 Nbd5 Na6 Nf4 Ba5 Qd7 Qe2 Qb5 Nc5 Rb8 Bg2 Bg5 Rd1 h1Q Bc6 h2 Bd7 Qf3 Rd5 h1R Qf1 Rh5 Rh4 Ra8 Nge6 Rc8 Nd3 Ra8 Nd4 Bf6 Ka3 b2 Nb3 Bg5 Ndc1 Qc3 Ne2 Qf6 Nec3 Rb8 Nd1 Rb7 Nbc3 b1N+ Kb2 Na3 Rc1 Rc7 Ka1 Rc5 Rh2 Re5 Nb1 Re4+ Nb2 Bh4 Rcd1 Rf5 R1d4 Bg5 Nd1 Bh4 Re5 Rh5 Rg5 Rf5 Rg4 Bg5 Rgh4 Qf7 Rg2 Ned5 Nbc3 Bd8 Rgh2 Ne7 Nb1 Bc7 Rd5 Qf6+
4R2B/1Q4P1/n1p1b3/b2n3R/1n1p1q1b/3NP1Np/kN2KRr1/3BqN1N w - - 0 1 legal: proof: f4 a5 c4 g5 a4 e5 d4 exf4 b4 b5 axb5 c6 h4 gxh4 b6 Qg5 c5 Qe5 b7 Qe7 b5 Ra6 d5 Rb6 cxb6 Qd8 d6 Qc7 dxc7 Bc5 Qd3 Bd6 Qd1 Bf8 g4 Ke7 e3 Ke6 g5 d5 g6 f5 Qe2 h5 Ra4 f3 Qd2 h3 Kf2 f4 Bd3 h2 Qb2 h4 Be2 Na6 b8N Be7 b7 Nf6 b6 Rg8 Ra2 a4 Nd7 a3 b8R Bb4 b7 Ba5 Kf1 f2 Ne5 Kd6 Nd2 Kc5 Qb3 Be6 c8N Rg7 Rb2 a2 Nh3 a1B Bd1 Rg8 Ke2 f3+ Kd3 Rg7 Nb6 Rg8 Nbc4 f1Q+ Be2 f2 Re8 Qd1 b8N f1Q Qb7 Qf4 Nf2 Qe1 Nf1 Rg7 Bd1 Qc3+ Ke2 h3 Rg1 h1N Rg5 Rg8 Rh5 Rg7 Rd2 Rg8 Bb2 Rg7 Qf7 Kb4 Nbd7 Rg8 Rc2 Kb3 Ned3 Ka2 N7c5 Rg7 Qb7 Rg8 Nfe4 Nf2 Neg3 Rg7 Nh1 Rg8 Ne1 Nd3 Ne4 Ndb4 Nd3 Rg7 Neg3 Rg8 Rc1 Rg7 Ba3 Rg8 Ncb2 d4 Rc2 Nfd5 Rd2 Bd8 Rc2 Bh4 Rd2 Nc2 Be7 Ncb4 Bf6 Qc2 Na4 Bc3 Nab2 Qb3 Rc2 Be1 Bg7 Qc3 Be5 Bd8 Bh8 Ba5 Nf5 Bh4 N5g3 Rf8 g7 Rf6 Nf5 Rg6 Rd2 Rg1 N5g3 Rg2+ Ke1 Qb3 Rf2 Qc3+ Ke2 Qe1+
4N2B/q2pn2k/2r5/qR1brRb1/1b1B3K/p4PR1/1Np2qP1/1BQ1BB2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 d4 c5 Ra5 c4 Ra1 Na6 c3 Nc5 dxc5 Bb7 Kd2 Be4 Ke2 Bc2 Ke1 Bg7 Bf4 Bxc3+ Bd2 Bg7 Bc1 Bf8 b4 Kf7 f6 Kg6 f7 a5 c6 e5 b6 h5 f3 h3 Kf2 c3 Kg3 a4 c7 a3 c8B h2 b5 e4 b7 e3 b8B e2 b6 Qf6 b7 Ra6 Bb2 Rh7 Ba7 Nh6 b8B Qf5 Nd2 Bb3 Ne4 Be7 f8R Qa5 Rf5 Bg5 Rb1 Rc6 Bb7 Re7 Nd6 Ng8 Ne8 Bd5 Qc1 Kh7 Nh3 e1B+ Nf2 Re5 Bd4 h4+ Kh3 Qa7 Nd1 Ne7 Ba1 Bed2 Rb5 c2 Nb2 Bc3 Bd6 Be1 Bb4 Bc3 Kg4 h3 Ba6 Be1 Bc4 Bc3 Ba2 Bcd2 Ba5 Be1 Bb1 Bb4 Re1 h1Q Re4 h2 Kh3 Bd6 Rg4 Qe1 Rg3 Qf2 Be1 h1Q+ Kg4 Qhf1 Kh3 Bb4 Kg4 Bgd2 Kh4 Qc4 Rb7 Qcc5 Bf1 Qca5 Rb5 Bh6 Nd1 Bc4 Bac3 Bd5 Nb2 Ree6 Bh8 Re5 Bd4 Bg5+
r2qNRq1/2bpN3/2n2BN1/BR3P2/QN1p4/1npr1R2/P2Nr3/1Kn1k3 w - - 0 1 legal: proof: c4 a5 e4 f5 b4 h5 g4 b6 e5 e6 Bd3 b5 Be4 fxe4 bxa5 b4 gxh5 Ba6 d4 Bb5 d5 exd5 cxb5 d4 Kd2 Ke7 Kc2 Ke6 f4 Kf5 h4 g5 a6 c5 h6 e3 a7 Ke4 e6 c4 e7 e2 e8N e1R b6 g4 h5 g3 f5 g2 h7 Qc8 h6 Nf6 b7 Bd6 Nd2+ Ke3 Nh3 g1Q Nf2 b3+ Kb1 b2 Qa4 Ke2 Nd3 Qf2 Rf1 Qg3 Rf3 Qg8 Nb4 Nc6 b8B c3 Bc7 Nd5 Ba5 Rb8 a8N Nf4 Nb6 Nd3 N6d5 Ra8 Ne7 Bc7 Na6 Qg2 Nb4 Rg8 h8R Qd8 h7 Rg3 Rg8 Rh3 Rf8 Qg8 h8N Rg3 Kc2 b1N Nhg6 Rh3 Nb3 Nd2 Rb1 Rg3 Ba3 Nc1 Rb2 Ne4 Nd2 Nc5 Kb1 N5b3 Na6 Nc5 Rb5 N5b3 Bc5 Kd1 Nb4 Re2 Bd6 Ke1 Be5 Rh3 Bf6 Rg3 Rf2 Rge3 Rf3 Rd3
k1NN2K1/2qBp3/bp4r1/pRNr1r2/b2R4/1P3Pb1/n2r3N/RN1QB3 w - - 0 1 legal: proof: c4 d5 cxd5 c5 e4 f5 exf5 g5 h4 gxh4 Nf3 c4 Ng1 Nd7 Nf3 Nc5 Ng1 Nb3 axb3 c3 Ba6 cxb2 Bd3 Rb8 Bf1 Ra8 Ke2 Kd7 Ke3 Kc7 Kd4 Kb8 Ke5 h5 g4 a5 d4 b6 f6 h3 g5 h4 f7 h2 d6 h3 d7 Ba6 Ke6 Rh6+ g6 Rh4 g7 Ka7 d5 Ra4 d6 Rc4 Nf3 Rc2 Bd2 Nf6 g8N Bh6 f8N Bf4 Kf7 Bg3 Be1 Ne4 Ne6 Nc3 Nc5 Na2 Bb5 Qc7 d8N Rd2 d7 Kb8 Rf1 h1R Nh6 h2 Nf5 Rg1 Kg8 h1B Nh2 Bc6 Nd6 Ra7 Nc8 Ka8 Ba4 Rd5 Bb5 Rf5 f3 Rg2 Rg1 Rd2 Rg2 Rb7 Re2 Ra7 Re5 Rd5 Nd2 b1R Ba4 Rb2 Nb1 Rd6 Rd5 Rd2 Rd4 Rb7 Rb4 R2d5 Rb5 Rb8 Nf7 Rd2 d8R Rdf6 Rd4 Rd5 Nd8 Rff5 Nd6 Be8 N8b7 Rd8 Nc8 R8d6 Nd8 Rh6 Rbb4 Rhd6 Bd7 Re6 Rb5 Red6 Be6 Bc6 Bd7 Rdf6 Rbb4 Ba4 Rb5 Rg6+
1q2kN2/NrnnBpRP/3bn3/3q3K/3p1P1R/B2Bb1n1/1p4BB/5N1Q w - - 0 1 legal: proof: b4 h5 d4 c5 a4 b5 g4 hxg4 axb5 cxb4 c4 Nf6 b6 Ba6 c5 Ng8 c6 Bc8 Bf4 d5 Bg5 a5 Bc1 Ra7 Bh6 Rd7 Qd2 Rd6 Qd1 Re6 Bc1 Re3 Nd2 Na6 Nb1 Rc3 e3 Rc5 dxc5 d4 e4 Be6 Bc4 Nb8 Bf1 Bd5 exd5 Rh7 Qf3 Rh4 Qd1 Rh8 Ke2 e5 h4 g5 c7 b3 c8B g3 Kf3 g2 Kg4 a4 h5 a3 b7 e4 h6 a2 d6 e3 h7 e2 c6 e1Q f3 Qea5 c7 Ne7 Ne2 g1B Nf4 Nd7 b8B Nd5 Bg2 Be3 Ba3 b2 Kh5 g4 Nd2 g3 Rh4 Qb4 Rb1 a1N Ba6 Nb3 c8N Nc7 Ng6 Nbc5 Bd3 N5e6 Na7 Qb7 Qh1 Qd5+ Kg4 Be7 Nf8 Qc8 Nf1 Qcb7 Bh3 g2 Ra1 g1N Bg2 Ne2 Rc1 Qa2 Kh5 Rg8 Rc5 Qc8 Rg5 Ng3+ Kh6 Nf5+ Kh5 Qd5 Rg7 Na6 Bc7 Qb8 Ba5 Ndc5 f4 Rh8 Be1 Nd7 Bg3 Nac7 Bh2 Ne5 d7+ Kd8 Bde4 Qba8 Bd3 Bd6 Ng6 Rf8 Nh8 Ke7 Bf3 Rb8 d8B+ Ke8 Ng6 Rb7 Nf8 Nd7 Bg2 Qb8 Be7 Ng3+
4N3/3q2B1/3B2QR/1pB3K1/r1nnp1Rn/6nP/BNpr1P2/N1n2rBk w - - 0 1 legal: proof: b4 d5 g4 c5 a4 h5 gxh5 f5 c4 e6 e4 fxe4 a5 b6 a6 Bb7 axb7 dxc4 Qg4 c3 Qf3 c4 Qd1 Bc5 bxc5 Rh6 Bd3 Rh7 Bf1 Rh8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 a5 c6 g5+ Kg4 e3 c7 Ke4 c8N b5 h6 a4 d5 a3 h3 a2 d6 c2 h7 c3 d7 e2 Be3 c1N Bc5 e1N Bc4 c2 Na3 e5 Ne2 Ra4 Nd4 Nf3 Rg1 Nc6 b8B Nge7 Bbd6 Nd5 Nb3 Ncd4 Qd2 Rf8 h8B Nh4 Bg7 Nb6 Be6 Qe7 d8B Qd7 B8c7 Rd8 Kh5 Kf3 Rg4 e4 Nc4 Nc6 Qa5 Nd4 Nb2 Nc4 Qa7 Nd3 Rd1 a1R Qb6 Nc1 Bh2 Rb1 Bg1 Rba1 Bg3 Kg2 Nd6 Kh1 Ne8 Rb1 Bgd6 Rba1 Rf4 g4 Kg5 g3 Rg4 g2 Rd3 Rb1 Rf3 Rba1 Rf6 Rb1 Rh6 Rba1 Bgh2 g1N Bf7 Nge2 Bg1 Rb1 Na1 Ng3 Qc6 Nd2 Ba2 Nc4 Bde5 Nd3 Qg6 Rf1 Bed6 Nc1 Nc7 Rf8 Ne8 Rf3 Bb6 Rd3 Bbc5 Rd2
1b2r1q1/q2R1N2/4RN2/1b4PK/1pkB2NR/1bNp4/Q1P2p2/1B2bbrN w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 fxe5 c5 Qd2 cxd4 Qd3 Ne7 Qd1 Ng8 Ba3 f4 Bb2 Nc6 Bc1 Nce7 h3 Nf5 gxf5 g5 h4 g4 Bb2 Nf6 Ba3 Ne4 Bc1 Ng5 hxg5 Qe7 Kf2 Qf6 Ke1 Qd8 Kf2 Kf7 e4 h5 a4 d5 e6+ Ke7 e5 b5 a5 h4 a6 b3 a7 d3 Nc3 g3+ Kf3 b4 Kg4 d2 Nge2 h3 Bb2 g2 Qb1 d1B Qa2 f3 Ng3 g1B Bc4 Be2 Rd1 d4 Ba1 Rb8 a8R h2 Ra6 b2 Rc6 b1B f6+ Ke8 f7+ Ke7 Rb6 Bf2 Bd5 Bg7 f8N Bd7 Nh7 Bf1 Kh5 Bdb5 Rd3 Rf8 Nf6 Be1 Ng4 f2 Rd6 Re8 Re3 d3 Rd7+ Kf8 Re2 Ra8 Re3 Bf6 e7+ Kg7 e6 Be5 Bc4 Bb8 Re4 Qb6 Re2 Qa7 Re5 Rd8 e8N+ Kf8 Nd6 Re8 e7+ Kg7 Qa5 Ba2 Re6 Bb3 Nf7 Kg8 Qa2 Kg7 Rg1 Kg8 Rg2 h1Q+ Rh2 Qe4 Rh4 Qh7+ Rh6 Kg7 Nh1 Qg8 Ra6 Rd8 e8N+ Kf8 Rd5 Ke7 Nef6 Rc8 Rad6 Re8 Rd7+ Ke6 R5d6+ Kf5 Re6 Kf4 Nge5+ Ke3 Bb2 Kd2 Bd5 Ke3 Neg4+ Kd4 Qa5 B3a4 Ba2+ Kc5 Bb1 Bb3 Qa2 Kc4 Red6 Re3 Re6 Rg3 Ne2 Rg1 Bd4 Bh2 Nc3 Re8 Rd5 Be5 Rd7 Bb8
5bQ1/N1PP1B1p/1nrB3k/4Nq2/pK1pBp2/Rn6/q3RR1b/1Rr1R3 w - - 0 1 legal: proof: c4 b5 f4 d5 h4 g5 a4 gxh4 axb5 c5 b6 e5 Rh2 exf4 Rh3 Ba6 Rh1 d4 d3 Qd5 cxd5 c4 Ra2 c3 Ra1 Bc4 dxc4 Kd7 Na3 Kd8 Nb1 Ke8 e4 a5 b4 f5 g4 Kf7 b5 Kg6 d6 f3 c5 f4 c6 a4 b7 f2+ Ke2 c2 Kd3 h3 Kc4 h2 b6 Bh6 g5 Bf8 c7 Bh6 d7 Nc6 b8R Na5+ Kb4 Nb3 b7 Nf6 e5 Ra7 e6 Re8 e7 Bf8 Qg4 Rc8 Ra3 Ng8 Bg2 f1Q Nf3 Na1 Nc3 Nf6 Nb5 Ra6 Na7 Qd3 Re1 h1Q Ne5+ Kg7 g6 Kh6 g7 Rc6 g8B Re8 Ba2 Qh2 Bf7 Nb3 Qg8 Qf5 Be4 Qg2 Bb2 c1B Re2 Be3 Rf2 Qfh3 Ra8 Rc1 b8R Qf5 Rb6 Qh2 Rab8 Qg2 Re6 Qh2 Rbb6 Rb8 Rb5 Rb6 Bc3 Rd6 e8R Rc6+ R6e7 Qg1 Bb1 Qfg6 Nc4 Re1 Rh2+ Nh5 Rc5 Qf5 Kb5 Bf2 Bb4 Bg3 Rf2 Qe4 Rg5 Qg6 Bd6 Bh2 Kb4 Nf6 Bc2 Qf1 Rg1 Qe2 Re3 Qg5 R8e4 Rf1 Ne5 Qf5 Bd3 Ra1 Rd1 Qb2 Ree1 Qa2 R4e2 Rb1 Be4 Nd5+ Kb5 Nb6 Kb4 Rb2 Ra1 Rbc2 Rab1 Rc1
1q5r/1q3rBR/Pq2p3/1pbR1nRR/6pN/K1p1BBP1/1Q5R/3bk1N1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b3 h4 b4 f5 exf5 axb4 Ne2 Nc6 Ng1 Nd4 Na3 Ne2 Nb1 Ng3 fxg3 h3 Qg4 hxg2 Qh5+ Kd7 Qd1 Ke8 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb2 g5 a4 b5 h4 e6 a5 g4 h5 c4 h6 b3 h7 c3+ Ka3 b2 a6 Bh6 f6 Bd2 f7 Qe7 f8B Bg5 Nd2 b1Q Rh5 Ra7 Be2 Qd3 Bg7 Qc7 Bf3 Bh6 Qb3 Qb8 Ra2 Be3 Qb2 Rf7 Rg5 Qe4 Rh5 Kc7 d6+ Kc6 d7 Nh6 d8R Nf5 d5+ Kc5 d6 Bd4 d7 Bb7 Rg8 Ba8 d8R Qeb7 Nf1 Kc4 Nh2 Kd3 Rd5 Q7c7 Bf4 Bc6 Be3 Qcb7 Rc5 Bd5 Rd8 Bb3 Rdd5 Bd1 Rg5 Rg8 h8R Rd8 Rh7 Rh8 Ne2 g1Q Rgh5 Qf2 Ng1 Nh6 Rdg5 Nf5 Rd5 Qc2 Bf2 Kd2 Be3+ Ke1 Be4 Qf2 Nhf3+ Kf1 Nh4 Ke1 Bg2 Qff4 Bf3 Qfc7 Qb1 Qcc6 Rh2 Qcb6 Qb2 Bc5+
4N2K/3B2B1/pR3Q1r/k1N1Nqb1/p1R1q1pb/P2P1n2/q2np1R1/1N1N4 w - - 0 1 legal: proof: e4 d5 f4 dxe4 c4 f5 h4 g5 g4 a6 gxf5 Be6 f6 Bd5 cxd5 b5 Qa4 bxa4 h5 Nh6 f5 Rg8 Nc3 Rg6 hxg6 Ng8 Nb1 Qd7 Bc4 Bh6 Bb5 Kd8 Rh5 Nc6 Bd3 Bg7 Be2 Nh6 Bd1 Rc8 Kf1 Nb8 Bg4 Qd6 Kf2 Kd7 Kf1 Rh8 Be2 Ke8 Rh1 Qd8 Ke1 Bf8 Bf1 Ng8 Ke2 Kd7 Ke3 h5 Kd4 c5+ Ke5 Kc7 b4 Kb6 d6 e3 g7 h4 d7 e6 f7 e2 f6 e1B a3 g4 b5 c4 Bb2 h3 Rh2 c3 Rg2 h2 Nh3 h1Q Nf2 c2 Nd1 Ne7 g8N Qc8 d8N c1Q Nc6 Bh6 f8N Rh7 f7 Bh4 Nf6 Nf5 Ne8 Qc4 d3 B6g5 Nd7+ Kb7 f8Q Rg7 b6 Ng3 Qf4 Ne4 Qf6 Nd2 Bd4 Qa2 Nc5+ Ka8 Be2 Rg6 Bf3 Qd7 Be4 Qh7 Bf5 Nd7+ Kd6 Qh5 Ke7 Ne5 Kf8 Nef3 Ne5 Qe1 b7+ Ka7 b8R Qe4 Rc8 Kb6 Rb8+ Ka5 Rb6 Qad5 Ra2 Qh7 Rc2 Qa2 Rc4 Qh5 Nf7 e5 Bd7 Qh7 Bb2 Qf5 Bd4 e4 Ne5 e3 Bb2 e2 Ba1 Rh6 Bd4 Qe7+ Kg8 Rg6+ Kh8 Qee6 Ba1 Qe4 Bd4 Q6f5 Qe6 Bd8 Qf6 Bg5 Be3 Bh4 Bh6 Bg5 Bg7 Bh4 Qe6 Bdg5 Qf6 Rh6+
2r3nk/1RPr4/3N1r2/N2bp1Pr/1n1B2qp/1p1p2QB/4B1N1/KB2B2R w - - 0 1 legal: proof: g4 a5 d4 c5 f4 cxd4 b4 axb4 h4 f5 e4 g5 exf5 e6 fxg5 Ra4 h5 Ra7 h6 Bc5 g6 Bf8 g5 Bg7 hxg7 Ra8 Kd2 h5 c4 b5 Kc2 d5 Kb2 b3 a4 e5 c5 b4 f6 d3 f7+ Ke7 f8B+ Ke8 a5 h4 a6 d2 a7 d4 c6 d3 c7 Qd6 Ne2 Be6 Qe1 d1R Na3 Qe7 Nf4 Bf7 Ng2 Qc5 Bd2 Nc6 Nc4 Qd6 Rb1 Rh5 Be2 Na5 Ka1 Be6 Qg3 Rc8 a8N Nc6 Be1 Bd5 Nab6 Qd7 Bc5 Qg4 Bd4 Rc1 Na5 Rc5 Nbc4 b2+ Ka2 Nh6 g8B Kf8 Be6 Kg7 Bd7 Kh8 Be6 Ng8 Bd7 Qf3 Bh3 Qg4 g7+ Kh7 Rd1 b1R Rc1 Rb2+ Ka1 Rc2 Nd6 R5c4 Bb6 Rd4 Rb1 Rcc4 Ba7 Rf4 Bd4 Rf6 Bb2 Rcf4 Bd4 Rf7 Rb3 R4f6 Rb2 Rd7 Rb1 Nh6 g8B+ Kh8 Be6 Ng8 Bf7 Be4 Ba2 Bd5 Rb3 Rf3 Bb1 Rf6 Ra3 b3 Ra4 Rf4 Rb4 Rf6 Rb7 Nb4
2q4k/p6p/3B2R1/RB2K2P/2R1R2p/1NbP1b2/p1b1bn1R/1Nr1b1QN w - - 0 1 legal: proof: h4 b5 a4 bxa4 f4 g5 d3 e5 fxe5 Bg7 h5 Bf8 Qd2 Bc5 Qb4 Bf8 Qh4 gxh4 d4 c5 Bd2 c4 Ba5 Na6 Bd2 Rb8 Be3 Rb5 Bc1 Rc5 dxc5 d5 Bd2 d4 Bg5 d3 Kf2 Nb4 Bc1 d2 Nc3 Kd7 Nb1 Nd3+ cxd3 Ke8 Ke3 d1B Kf4 f5 g4 Kf7 e4 Kg7 b4 c3 c6 c2 e6 a3 e7 Bf3 e8Q Qb6 g5 Qc7+ e5 Bb7 g6 Be7 b5 Qd6 c7 Nh6 c8R Qd8 b6 Ng8 e6 Qd7 Ke5 f4 Bh3 Bfd5 Rh2 f3 Ne2 f2 Ng3 f1B Bf4 c1B Nh1 Be3 Rc4 Bb4 e7 Ba6 b7 Nf6 b8N Be1 Nc6 Ne4 Na5 Bb5 Nb3 Qc8 Bd7 Ba4 Bb5 Be2 Qc6 Rg8 e8R Nf2 Qb6 Kh8 Re7 B3d2 Qc5 Nh3 Qg1 Nf2 Re6 Rg7 Ra2 Rc7 g7+ Kg8 Rg6 Bdf3 Re4 Rc4 Rc6 Rc1 Rcc4 Kf7 g8R Bc3+ Nd4 Bc2 Rg6 Ba5 Nb3 Bad2 Re6 Bb4 Bg3 Kg8 Rg6+ Kh8 Kf6 Ba5 Bd6 Bad2 Ke5 Bcd1 Rac2 a2 Ra4 Ba5 Rcc4 Bc2 Ra3 Bad2 Ra5 Bc3+
N4Q2/1k1r3R/1Bb1BpR1/qn1ppPRP/2q1bpK1/8/B1q2q1B/5B1N w - - 0 1 illegal: No proof kernel
kN1nn3/N4qnR/1Knp2B1/pn1R2Np/p4Q2/P1N1bRP1/BNb5/8 w - - 0 1 legal: proof: f4 f5 g4 c5 d4 cxd4 e4 b6 exf5 Na6 f6 Nb8 Bd2 Kf7 Bb4 Ke6 f7 Kd5 f5 Kc6 Ba5 bxa5 Kf2 h5 Ke2 g5 Qd2 a4 Kd1 a5 Ke1 Rh6 Qe2 Rg6 Qd2 Ra6 Qd1 Rb6 Nc3 Rb5 f6 Rf5 gxf5 g4 Nb1 g3 Be2 g2 Bf1 Rg3 hxg3 Kc5 Na3 Kd6 Nb1 Kc6 Kf2 Kb7 b4 e5 c4 d3 Ke3 d2 b5 e4 Kd4 e3 b6 e2 a3 e1N c5 Ka8 c6 Bb4 f8N Be7 f7 Bb7 c7 Bc8 b7+ Ka7 f6 Nh6 Nf3 g1N Nh7 Nh3 f8R Bb4 f7 Na6 Ne5 Qe7 Qg4 d1N Rh8 Ng2 f8N Nde3 Ng5 Bd2 Nd3 Nb8 Rh7 Qf6+ Kc5 Nf2 Ng6 Ng8 Nb2 Qf7 Bd3 Nf6 Ne7 Nfd1 Bg6 Nf5 Rf1 Ng7 Rf3 Nc6 b8N Ka8 Kb6 d6 Qf5 Bd7 Nc8 Nc3 Na7 Nb5 c8B Nfe8 Nc3 Nf4 Rd1 Nfe6 Qf4 Be3+ Rd4 Ned8 Ba6 Nbc7 Bc4 Nb5 Bb3 Bf5 Ba2 Bc1 Rd1 Bc2 Rd5 Be3+
2rQ3R/3p1npB/Rp5r/1r1r2q1/2p3qN/2Prk3/RPB2N2/1B2B1BK w - - 0 2 legal: proof: f4 h5 a4 e5 d4 exd4 e4 b6 g4 hxg4 h4 Na6 a5 Be7 f5 Rh6 e5 Rc6 h5 Nc5 h6 Ne6 h7 Bb7 a6 Bd6 axb7 Ke7 h8R Rc3 fxe6 Nf6 Rg8 Rh3 Ra6 Ba3 Rxa3 Rh7 Ra1 Rh8 Kf2 a5 Kg2 c5 b8B d3 c3 g3 Rh3 a4 Qg4 a3 Be3 c4 Rh7 d2 Nf3 d1R Nbd2 a2 Bg1 Ne8 Ne4 f5 Kh1 f4 Nh4 f3 Bd3 f2 Bb1 f1R Nf2 Rd3 Qe4 Ra5 Qa8 Rad5 Rh5 Rh6 Rh8 Nd6 Bc2 Qf8 Rg5 Nf7 Rh5 Kd8 e7+ Kc8 e8B Qe7 e6 Qg5 e7 g2+ Kh2 Re1 Bb1 Ree5 Bc2 Nd8 Bg6 Rf5 e8B Nf7 Bh7 Rfe5 Ba7+ Kc7 Qd8+ Kc6 Bb8 Rb5 Bb1 Red5 Bf4 Kc5 Bd2 Kd6 Be1 Ke5 Bc2 Kf4 Bb1 Ke3 Bc2 Nd6 Beg6 Nf7 Be4 Rdc5 Bef5 Rc8 Bfg6 Qg4 Rc5 Rd5 Rc7 Qg5 Ra7 Rd3 Ra6 Rdd5 Rb1 a1R Bge4 Raa5 Ra1 Rd3 Ra2 Rbd5 Bb1 Rab5 Bef5 R3d4 Bfc2 Rd3 R6a5 Qg4 Ra6 Qh5 Kg3 R5d4 Bh2 g1Q+ Kh3 Qgg6 Bg1 Qgg4+ Kh2 Rdd5 Kh1 Qhg5
3Q4/1Nr4n/BBRpR1q1/BBn1pp2/N5k1/p1PP1N1p/q7/K1b1B2r w - - 0 1 legal: proof: b4 c5 bxc5 b5 e4 g5 h4 gxh4 a4 d6 axb5 Bd7 e5 Bg7 e6 Kf8 exd7 Bd4 Ke2 Bxf2 Kd3 Kg7 Kc3 Kh6 Kb2 Kg5 g4 e5 b6 h5 c6 f5 c7 a5 c8B h3 b7 h2 Qe1 a4 Bb5 h4 d3+ Be3 Qa5 Bf4 Bd2 Ne7 Be1 Nd5 Nc3 Qf8 d8B+ Qe7 Nf3+ Kg6 g5 Kh5 g6 Re8 g7 Be3 g8N Bh6 Rc1 a3+ Ka1 Qh7 Bb6 Nd7 b8B Kg4 Bca6 Rc8 Na4 Qg6 B8c7 N5f6 Ne7 Nc5 Nc6 Nh7 Nd8 h3 Nb7 Ra7 Rf1 h1Q Rg1+ Kf4 Rg5 Qg2 Rh5 Bg5 Rh6 Kg4 Bd8 Qg8 Re6 Qg6 c3 Rc7 Rb1 Bc1 Rb3 Ra8 Rb2 Rb8 Rb4+ Ne4 Rc4 Qd2 Rc6 Nc5 Nb2 Qf2 Na4 Qg3 Ba7 Bf4 Bc4 Rf7 Bf2 Ne4 Nbc5 Qh2 Bc7 Rb4 Nb7 Nc5 Bcb5 Re4 Bg3 Bc1 Bd8 Re2 Be1 Rg2 Qc7 Rg1 Qe7 Rh1 Ba5 Qg2 Qd8 Rc7 B7b6 Qa2+
1N3bk1/4Bq1p/1pK2P2/nP3N2/n1prR3/R2B1N2/q2b1pp1/2QNR1N1 w - - 0 1 legal: proof: c4 d5 cxd5 b6 a4 Nc6 a5 Rb8 a6 Rb7 axb7 Nb8 Nf3 a6 Ng1 a5 g4 f5 h4 e5 h5 f4 f3 Bf5 gxf5 e4 h6 exf3 Rh4 Nxh6 Rh1 Ng8 Kf2 Kf7 e4 g5 d4 c5 b4 a4 b5 a3 f6 g4 d6 c4 e5 a2 d5 Bh6 e6+ Kf8 e7+ Kf7 e8N Qd7 Ba3 Qf5 d7 Na6 b8N Qe4 d8R Bf8 d6 Ne7 d7 Kg8 Ng7 Nc5 Qc1 Qb7 Nc3 Nc6 Nf5 Na4 Be7 Na5 Bd3 Qa7 Nd1 g3+ Ke1 f2+ Ke2 g2 Kf3 f1Q+ Ke4 f3 Kd5 f2 Re8 Qc7 d8N Qe2 Ne6 Qb2 Rh3 Qa3 Rb1 a1B Ned4 Bc3 Ndf3 Bd2 Ra1 Qa7 Rh4 Qa2 Re4 Kf7 Kd6 Rg8 Re1 Rg4 Kd5 Kg8 Kd6 Nb3 Kc6 Rd4 Re4 Qb2 Ra3 Qa2 Bd6 Qf7 R8e5 Qb1 Be7 Qc2 Re1 Qa2 R5e4 Na5+
RN2rb2/2knp1N1/1rB5/PBBp2p1/7N/1p2KP2/QnnNpn1N/4R3 w - - 0 1 legal: proof: b4 a5 h4 g5 e4 b6 h5 f6 d4 c5 dxc5 axb4 e5 fxe5 f3 Bb7 f4 Bf3 gxf3 e4 Qd6 Qc7 Qd5 Qd6 Qd1 Qg6 hxg6 Ra6 Ne2 Ra4 Ng1 Ra8 Ke2 Kd8 a4 d5 c4 h5 f5 b3 g7 b5 f6 h4 f7 e3 c6 b2 c5 b4 c7+ Kd7 c8N b3 c6+ Kc7 Qc2 h3 Nd6 h2 Nf5 Rh4 Nd2 b1N Qa2 Nd7 Nh3 Re8 Ba3 Nb8 Nf2 Rh7 Ng4 Rh5 Bc5 Nh6 g8N Na6 Nh4 Kc8 c7 Na3 N8f6 Ng8 Nd7 Bh6 f8N Nc2 Ne6 Nf6 Nb8 Nd7 Ng7 Nab4 a5 Kb7 c8B+ Kc7 Bb7 Nd3 Bc6 Nb2 Rb1 Ne5 Re1 Nd7 Rg1 h1N Nh2 Nf2 Rg4 Nh3 Rb4 Nf2 Rb6 Ne4 Ra6 Nf2 Ng6 Rh4 Ra8 Rb4 Nh4 Rb7 Bh3 Rb5 Bf5 Rb6 Bd3 Nfd1 Bdb5 Nf2 Nh5 Bf8 Ng7 Kc8 Qb1 Kd8 Qa2 Kc7 Ba3 Na4 Bb4 Nh1 Kd3 e2 Bc5 Nb2+ Kc3 Na3 Kd4 Nf2 Ke3 Nc2+
QN2K3/R4N1B/p2p1kN1/1pp4r/4n1p1/1N1n1P2/Pp3NBr/R1q3Rn w - - 0 1 illegal: Other
1n1R1rb1/2N1qRRb/3B1Q1n/4q1R1/1qk1PK1b/1bnN3R/4P2r/3B1bB1 w - - 0 1 legal: proof: h4 b5 d4 g5 a4 gxh4 axb5 e5 f3 e4 fxe4 c5 Rh2 cxd4 Rh3 Bg7 Rh1 Bf8 Kf2 Ke7 Kf3 Kd6 g4 Kc5 c4 f5 b6 a5 b3 d5 b7 h5 g5 d3 g6 d4 g7 f4 Ra3 a4 Be3 h3 Qc1 d2 Bg2 d1N Qb2 h4 Nc3 h2 Nd5 h3 Nc7 Nh6 g8R Be6 Rg7 Nc3 Qa1 Kb4 c5 d3 c6 d2 Bd4 d1B Rf7 Na6 b8B Be7 Ra2 a3 Bda7 Nb5 Qf6 Nc3 Rd2 a2 Rd5 a1Q Rg5 Qa5 Rfg7 Bg8 Bf2 Ka3 b4 Kb3 b5 Qb4 b6 Kc4 b7 Bb3 Bc5 Rh7 Bba7 Qd5 b8R Qe5 Rb7 Rf8 Bd6 Nb8 Bb6 Nf7 Kg4 f3 Be3 f2 Nf3 f1B Ne1 Bd8 Nd3 Nh6+ Kf3 Qe7 Kf4 Rh8 Bf3 Bh7 Bh5 Bg8 Rhg1 h1B R1g3 h2 Be8 Bf3 Rh3 h1Q Bg1 Qh2+ Rhg3 Bf7 Na6 Ba4 c7 Qe6 c8R+ Kb3 Rf5 Ng4 Kg5 Bg8 Qe7 Rh6 Bc6 Kc4 Ra7 Qh5+ Kf4 B3g2 Rd7 Bh3 Nc7 Rh8 Qg5 Bf6 Rdf7 Qe7 Qg6 Rh7 Rb5 Qhc5 Be8 Rh5 Re3 Nh6 Rd8 Bf5 Bc6 Rh2 Rh3 Bh4 Qf6 Bc2 Ra5 Qd4 Ba4 Bfh7 Rag5 Qde5+ Ke3 Bb1 Bd1 Bc2 Kf3 Bb3 Ke3 Qeb5 Kf4 Qbe5+
1nrb1Bnn/6K1/krBN3N/r2P3R/q3b1N1/b1b1R3/2NNb1BP/q2Q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 c5 d4 Kc7 e4 Kb6 d6 a5 d7 f5 d5 g5 e5 f3 Ke3 g3 e6 c4 Kd4 g2 Ke5 a4 e7 f2 e8B c3 Bh5 f4 Be8 c2 Bg6 g4 Ne2 g1R Nec3 g3 Bg2 f1Q Be8 f3 Ne4 a3 Nd6 f2 Nd2 a2 Ba3 Qh4 d8N c1B Bc6 Bf5 N8f7 Be4 Nh6 Be7 Rb1 Ra7 Rb3 Nf6 Re3 a1B+ Ke6 Re8 Kf7 Ra5 Kg7 Ka7 b6+ Ka6 b7 Rc8 Qg4 Bc3 Qd1 Bd8 b5+ Ka7 b6+ Ka6 Bc5 Qe1 Ba3 f1B Bb4 Bb5 Ba3 Rf1 Rg1 Be2 Bb4 Rf5 Rf1 Re5 Rf5 Re6 Rh5 Qf4 Ndf7 Ba3 Bf8 Qh1 Nd6 Qhf1 Qa4 Qb1 Qd1 Qa1 Be8 Bc2 N6c4 Nc6 Bf3 Bae7 Bd7 g2 b8N+ Kb5 b7 g1N Bh1 Ba3 Na6 Nf3 b8N Nh4 Nb4 Ng6 Bg2 Nh8 Be8 Qd4 Nd7 Be4 Nc2 Ka6 Nde5 Nb8 Neg4 Rb6 Nd6 Qa4 Bc6 Ng8+
b6R/2q2K2/1R1q1P2/3Bb3/NQq2bN1/1BnrnqP1/B1B3n1/kr1qN1B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kf3 b5 Kg4 h5+ Kh4 d5 a4 e5 f4 d3 c4 d2 c5 b3 g3 d4 f6 Ke6 a5 Kd5 a6 e4 a7 d3 c6 Kd4 c7 b4 f7 b2 f5 b3 f6 e3 g6 e2 Kg5 e1B g7 h4 Kg6 h3 Qe2 d1Q Bd2 h2 Bh3 Nc6 Bh6 d2 Qe7 Na5 Qb4+ Nc4 Qa5 Rb8 a8B Ne3 Bc6 Bb7 c8B Bd6 f8N Ne7+ Kf7 Qc7 g8B Ng2 Ba4 Ba8 Bcf5 Nd5+ Nd7 Nde3 Be6 Be5 Bh7 Rhd8 Nc3 b1Q Bd5 b2 Bhc2 Qa2 Qb4+ Qac4 Bhe6 b1N Bab3 Qf3 Ra4 d1Q Ra6 Bd2 Na4 Nc3 Rb6 Qd6 Nh3 Bc1 Nf4 Rb7 Nd3 Qf4 Rf1 h1Q Ne1 Qff3 Ba2 Qh4 Bg5 Qhf4 Rh1 Rbb8 Rh8 Rb7 Rc6 Rb5 Rb6 Bd2 Qa5 Rb1 Qb5 Qcc7 Bdb3 Q4e4 Bed5 Qd3 Qa5 Qdc4 Qb4 Nf5 Qb5 Qf8+ Ke6 Ne2 Nac5 Kc3 Qb4+ Kb2 Be3 Nc3 Bg1 Bd4 Ne5 Bf4 Ng4 Ka1 Na4 Nfe3 Rg8 Qcd3 Rh8 Bde5 Bc6 Qde4 Bb7 Rd3 Bc6 Qc5 Bcd5 Q7d6+ Kf7 Qec4 Rh5 Qcc6 Rh8 Qcc7+
1N4b1/r1b1RP2/2B3Bq/r1b2Bqn/P1K1B1q1/2N1Q3/1kqRnq1B/1r5R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 h5 c4 b5 a4 e5 f4 d5 g4 b3 g6+ Kf6 c5 b4 c6 h4 c7 h3 g7 e4+ Ke2 b2 Qc2 d3+ Ke3 d2 Kd4 d1Q+ Bd3 e3 Rh2 b3 Nf3 e2 Kc3 e1B+ Kd4 Ra7 Qd2 Be6 c8B Bg3 Nc3 b1Q Be4 b2 Ne5 Qdc2 Nc6 Rh5 Qe3 Qa2 Rd2 b1R Bb7 h2 g5+ Kf7 f6 h1Q f5 Bc7 Ba3 Qhc1 Bd6 Qe7 Kc5 d4 Bc8 d3 Bb7 Bb3 Kb5 Qe6 Bh2 Bc5 Ba8 Qg1 Bb7 Qf2 Ba8 Qa3 Bb7 Qac1 g6+ Ke8 f7+ Kd7 f8R Nf6 g8B Ba2+ Nb4 Nc6 g7 Qe7 Bb3 Nd4+ Kc4 Ne2 g8B Rg5 Nc6 Nh5 f6 Qh7 Kb5 Qh6 Bgh7 Qcg1 Kc4 Ke6 Ra8 Qgg3 Nb8 Ke5 Bbc6 Rf5 Rd1 d2 Bg6 Rg5 Rh1 d1Q Re1 Qd7 Rd1 Qg4 Rd2 Rb7 Ra5 Ra7 Rb5 Rb2 Rh1 Rb1 Rb4 Q3f4 Kb5 Qf4g3 Be6 Bd5 Be6f5 Bg8 f7 Q3f4 Rd7 Qf4g3 Rb2 Q3f4 Qc1 Qf4g3 Re7+ Kd4 Bfd7 Re5 Bdf5 Qge3 Qe1 Qeg5 Qg1 Ke3 Kc4 Kd2 Qg3 Rd5 Bg1 Kc1 Bh2+ Qd1 Rd2 Re5 Bg1 Qc2 Qe3 Kb2 Bh2 B5d6 Bb7 Rea5 Bc6 Bc5
2KR1q2/1QP2bBR/BRPBN1n1/r2nR2q/3bNb2/1b2n3/2Rqb1k1/3r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 e4 d5+ Kf3 f5 b4 h5 g4 a5 c4 h3 g5 h4 b6 d4 g6 a4 c6 a3 c7 d3 b7 h2 c5 d2 b5 a2 c6 h3 b6 Ra5 g7 Nf6 g8R Bd6 Be2 Qf8 Qb3 d1Q Nd2 Nbd7 b8R Nd5 b7 Rh7 Rb1 a1B Rg2 Bd4 Bb2 Re7 Qb6 Re8 Ra8 Rd8 b8B Ba6 Ba1 Bc4 Qb7 Bb3 Ba7 Qc1 Ba6 Qb2 Ke2 f3+ Kd3 Kf4 e5 f2 e6 f1N e7 Nfe3 e8R B6e5 Rf2+ Kg3 Ngf3 f4 Ng5 f3 Ke4 Bf4 Ne6 Ne5 Bc5 Ng6 Bd6 Qc3 Re2 f2 Rc8 Rd7 Rcd8 f1B Rf2 Be2 Re7 Ba2 Rb6 Bb3 Rh7 Qb2 Rc1 Qa2 Rc2 h1Q+ Rf3+ Kg2 Bc3 Bg3 Rf5 h2 Bb2 Bf4 Ba1 Bc5 Bg7 Bd4 Rfh5 Qd1 Re5 h1B Bf6 Nc4 Kf5 Qb2 Ne4 Qc3 N6g5 Nce3+ Ke6 Qce1 Bh8 Qh4 Bf6 Qd2 Bg7 Qh5 Rb4 Rf7 Rb6 Rf5 Kd7 Rf6 Bc5 Rd6+ Kc8 Nb4 Ne6 Ba1 Qa8 Kh3 Ra2 Qd1 Nf6 Bhd5 Ne4 Kg2 Nd4 Bf7 Ne6 Rd3 Rc2 Nbd5 Ba3 Bd4 Bd6 Qc1 Qb8 Rd1 Qb7 Qd2
n6n/1rPK2bP/3R1Q2/rR1BB3/1qn2RN1/2Rq1Bk1/Nqb5/Rq2q1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kh4 c4 a5 e4 g5 b4 f5 e5 d3 e6 d2 h6 g4 b6 f3 c5 f2 c6 a4 e7 g3 Kd6 f4 c7 a3 h3 a2 h7 f3 b5 g2 b7 Ra5 b6 Kg3 h4 Bg7 e8B Nh6 h5 Qh4 Be2 f1Q Bf7 f2 Nc3 Qe1 Nh3 g1R Bd5 f1N Nf2 Ne3 Bef3 Qd4 Qe2 d1Q Rh4 Q1d3 Ng4 Nc4+ Ke7 d6 Qe6 Nd7 b8R Nf7 b7 Ndb6 h6 Na8 Bb2 Qeb1 Qf6 Bf5 Rd8 Be4 Be6 d5 Rd6 Rb8 Kd7 Nh8 Bf7 Qc5 Bg8 d4 Bd5 Rf8 b8R Qb4 Rb5 Rb8 Na4 Rb7 Nc3 Ng6 h8R Qe1 Rb8 Nh8 h7 Bg6 Rd1 a1Q Na2 Qc1 Bc3 Qcb2 Ra1 Qdb1 Re8 d3 Re3 d2 Bd4 d1Q Rc3 Qdd2 Be5+ Qf4 Rh5 Bc2 Rf5 Q4b3 Bd4 Qfe4 Rf4 Qb4 Be5 Qd3
1Q5R/2N5/2N1RRKb/NNn1q1n1/B1rbN1q1/nP4r1/kB1Pn3/qb1r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 e3 c5 g5 f5+ Ke5 a5 d6 h5 b3 a4 b6 h3 g6 c4 b7 f3 e4 f2 d7 h4 g7 c3 Ne2 c2 Nf4 a3 Ng6 f4 Kf5 a2 e5 f3 e6 h2 e7 h3 e8R Nf6 g8N Ra4 Rg1 h1Q Re1 h2 Bh3 f1N Re8 f2 Rg4+ Qe4+ Kg5 h1Q Bg2 Ne3 Qe2 f1R Nc3 Rh3 Rf4 Nc4 N6e7 Na6 b8N Nc5 Bb2 Qc7 d8N c1N Nb7 Bf5 Na5 Qd7 Qg4 Rg3 Bf3 Qe2 Bc6 Qg1 Re4 Nh7+ Kh5 Bh6 Nf6 Qe6 Rh8 Ng5 Re3 Qd6 Re6 Qde5 Bb5 Q2e4 Rb1 Ne2 Bd7 Nh3 Qg8 Ng5 Be8 Q4f4 Ra1 Bd3 Nfe4 Qg4+ Kg6 Qh1 Re1 Rfg1 Rf1 a1B Bc1 Bb2 Na6+ Ka3 Rff6 Rb4 Nc7 Rf1 N3b5+ Ka2 Nd4 Na3 Ba4 Rc4 Ndb5 Bd4 Bb2 Rb1 Qb8 Qc1 Nec6 Qc3 Bc1 Qa1 Bb2 Rd1 Qf8 Bc2 Qb8 Bb1
1bkq2q1/qRn1Bb1R/8/1n2BPnb/2B2Nn1/1B2r2B/r1K2PrQ/N4R2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 b4 a5 c4 h5 g4 d5 g5 Kd7 c5 a4 g6 a3 g7 e4 b6 e3+ Kd3 a2 b5 e2 b7 e1N+ Kd2 d3 b6 d4 Qg4 h3 Nc3 h2 Kd1 d2 Nge2 h4 Bb2 h3 Qg3 Na6 b8R Nh6 g8B Nc7 b7 Ng4 Nf4 Nf3 Bd3 Bd6 Nce2 Ng5 Kc2 d1N Kc1 Nc3 Bdc4 d3 Qg1 d2+ Kc2 N3b5 Rf1 a1Q Be5 Qa7 Nd4 d1R Bb3 Rd3 Bgc4 Rg8 Qg2 Re3 c6+ Ke7 Qg3 Be6 Bf6+ Ke8 Be7 Bf7 Qh4 Nd5 c7 Kd7 c8B+ Kc7 Rhg1 h1B Qh8 Bf3 Rh1 h2 Be6 Ndf6 Bed5 Ne8 Qh5 Be2 Bg2 Kd7 Bh3 Nec7 Ba2 Rg6 Nb3 Rg7 Na1 Rg8 Rhg1 h1Q Bab3 Qd5 Rh1 Qe6 Bf6 Qee8 Be7 Rg7 Qh4 Qg8 Qg3 Nh6 Qh2 Beh5 Rc8 Ng4 b8B Nce6 Rc6 Nec7 Rb6 Kc8 Rb7 Nce6 Bc7 Rg6 Ba5 Bb8 Bc3 Nec7 Bcf6 Qc5 Be5 Ra2+ Kb1 Qa7 Kc1 Raa6 Kc2 Ra2+ Bb2 Nge6 Qg1 Nh6 Bg2 Be2 Rh3 Rgg3 Qh2 Ng5 Rh4 Bf3 Bh3 Rg2 Rh5 Ng4 Rh7 Ne5 Rh1 B3h5 Rf1 Ra3 Bd4 Ng4 Be5 Ra2+
2n2rR1/1qNQ1Bnb/N2B4/2P4R/1q1k1N1B/2r1bb1n/1B1P2q1/1K1Br1r1 w - - 0 1 illegal: No proof kernel
1rB2qq1/1BRnq1BB/1B6/P3rN1b/5K2/NRR1rn1k/PbQb1q2/4n3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 b5 e4 h5 d4 c5 g4 f5 d6 Ke6 e5 c4 d7 h3 g5 b4 g6 h4 g7 b3 Qc2 c3 Qb2 h2 Nh3 c2 Bd2 c1B Ng1 h3 Be2 Bb4 Bd1 Na6 Be2 Nf6 Bd1 Re8 Qc3 b2 Ne2 Nc5 Bc2 Nd3 Qc5 Rb8 Na3 b1N Be3 Bb2 Rg1 h1R Rc1 h2 Ng3 Re1 Bg1 Qc7 d8R Nd2+ Kg2 B2c3 Rd7 f3+ Kh3 f4 Rab1 f2 Rb3 Qd6 Rc7 f1Q+ Kh4 h1Q+ Kg5 Qh7 g8B+ Qf7 Bh7 f3 Bd1 f2 Bf3 Qe2 Bb7 f1Q Be3 Qdf8 Bf2 Nb2 Kf4 Nf3 Bg1 Bd7 Bc8 Q7g8 d5+ Kf7 d6 Ke6 Bd4 Qff2 Rc2 Re7 Bb7 Be8 d7 Bh5 Rc1 Na4 Bc8 Bb2 Qc3 Nc5 Bb7 Kf7 e6+ Kg7 Qc4 Kh6 Bc3 Ree8 e7 Qee6 Qe4 Re3 Bd4 Be1 Rcc3 Bd2 Qc2 Qef7 d8B Qe6 Rc6 Nfd7+ Bf6 Qef7 Bb6 Q7g7 Rc7 Nd3+ Kf5 Nde1 Kf4 Bg6 Nf5+ Kh5 Be5 Q7f7 Bg7 Qe6 Bc8 Bf7 Nd6 Kh4 Nf5+ Kh3 Bb7 Bh5 Bc8 Nc5 Bb7 Red8 e8B Rd5 Bc8 Rde5 Bc6 Nd7 B6b7 Qee7
1N1R1BnN/2nn1BB1/NP2K2P/rqq5/b1Q4R/1r5B/qb3qrb/1B2k3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kh4 c4 a5 e4 g5 b4 f5 e5 d3 e6 d2 h6 g4 b6 f3 c5 f2 c6 a4 e7 g3 e8B g2 b5 a3 c7 f4 b7 a2 h7 f3 h3 Kg3 h4 Bd6 b6 Qe7 h5 Ra5+ Bb5 f1Q Bf7 Kf2 Ba3 Bh2 Ne2 g1R Ng3 Rg2 Qa4 d1Q+ Qd4+ Ke1 Ne4 f2 Nd6 Qb3+ Qc4 Qg1 Bc5 f1Q Nc3+ Qb1 Ba4 Qgf2 Nce4 Qf8 Bd1 Qbb2 Rb1 a1B h6 Qa2 Rb4 Bb2 Bc2 Rb5 Ra4 Rb3 Bb1 Qe7 Ra8 Qf8 Nf5 d6 Nh4 Bd7 c8B Ba4 Ke6 d5 Ba3 d4 Nc5 d3 Ng6 d2 Na6 Nd7 b8N d1N Bc5 Ne3 Be7 Bc7 Rh4 Bh2 Bd6 Nd5 Be7 Ngf6 Bd6 Rg8 h8B Qd3 Ba3 Q8c5 Bg7 Rf8 Nh8 Ng8 Be8 Rf5 Bf7 Qb5 Be7 Qdd4 Bef8 Qdc5 Ra7 Ne5 Rd7 Rfg5 Rd8 Nd7 Qg4 Rf5 Qc4 Qa5 Rf4 Ne5 Nc6 Qce3 Rh4 Nc7+ Kd6 Rh5 Bh3 Nd7+ Qf4 Re5 Ncb8 Qee2 Qe4 Qc3 Qd4 Ra5+ Qf4 Rg3 Qb4 Qb5 Qg4 Rg2+ Qf4 Nd5 Ke6 Qcc5 Qc4 Nc7+
2RNNR2/1Pb1B1qb/1P1Nb2N/4k1n1/rn2N1rQ/1q1r2qr/2B5/1K1R1n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 h5 g4 f5 e4 a5 b4 c5 b6 a4 b7 h3 b5 h4 b6 h2 g5 c4 g6 h3 g7 f3 Bg2 f4 Kb2 f2 Qe1 f1Q Qh4 a3+ Kc2 f3 Ra2 c3 Ne2 f2 Ng3 Be6 Nh5 Qc4 Bf1 Nf6 g8N Nc6 Nh6 Qb8 Nd2 Rg8 Kb1 Nh7 Ng3 Rg4 Bd3 f1N Bc2 Ra4 Ra1 Ng5 e5+ Ke7 Ra2 Nb4 Nde4 Qb3+ Rb2 Kd7 Ngf5 Bd6 Rg1 Bc7 d6 h1R d5 h2 Be3 Ng3 Rd1 Nf1 Bc5 a2+ Kc1 Kd8 d7 a1R+ Rb1 R1a3 Nfd6 Ke7 Ra1 Qg8 d8R Qg7 Rf8 Kd7 Bb1 c2 Ra2 Bf5 e6+ Ke7 Rc8 Bh7 Ra1 Qg3 Rf8 Re3 Ra3 Rd3 Rc3 Na6 Ba3 Nb4 Kb2 c1Q+ Ka1 Qcf4 Bc2 Qff7 Kb1 Bb8 Rcc8 Bc7 Nd2 Kf6 e7 Ke5 e8N Qe6 N2e4 Qeg8 Ndf5 Q8f7 d6 Qfg8 d7 Qb3+ Kc1 Rg1 d8N h1B Nfd6 Bg2 Rg8 Rh1 Rh8 Rh3 Rf8 Qd5 Kb1 Qc4 Nc3 Bd5 Nce4 Be6 Ndf5 Na6 Be7 Nb4 Nfd6 Qb3+
Bn1b2b1/1NBq1nr1/n1k5/K3n3/P1n4n/N3P1rr/bNNR1R1N/6QR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 Kd7 h4 c5 d4 f5 Kd2 b5 h6 g5 e3 c4 d6 f3 h7 c3+ Kd3 g4 h5 c2 d5 f2 h6 g3 Rh4 f4 Nf3 g2 Bd2 g1R Rh2 c1N+ Kc2 b3+ Kc3 b4+ Kc4 b2 Kb5 b3 Bb4 Na2 Rh3 Rg3 Ba5 Nb4 Ra2 N4a6 Rh1 Be7 Bg2 f1N Nh2 f3 Na3 b1B Bc7 b2 Ka5 Nd2 Qg1 f2 Be4 f1N Nc2 Bh4 Bf3 Ke8 d7+ Ke7 Bg2 Ra7 d6+ Ke6 Be4 Nf3 Ba8 N1d2 Na3 Qe7 d8N+ Kd7 Nc6 Ne5 Nb4 Ndf3 Nbc2 Qe8 Qd1 Bb7 Qg1 Kc6 d7 Bf6 d8R Nh4 Rd2 Qd7 Rf2 Bd8 Rd2 Ne7 Rf2 N7g6 Rd2 Re8 h8N Nf7 h7 Nge5 Ng6 Rh3 h8N Rg8 Nf4 Rgg3 Ne1 Bh7 Nec2 b1N Nd3 Bg8 Rf2 Nd2 Nb2 Kc5 Nac4 Bd5 N4a3 Ng5 Nf7 Rb7 Nb1 Kc6 Nd6 Ngf7 Nba3 Bb3 Ra1 Ba2 Rd1 Kc5 Re2 Ra7 Nb7+ Kc6 Rf2 Nc5+ Kb4 Ndc4 Rdd2 Nca6+ Kc3 Be7 Bd8 Ng5 Nd6+ Rb7 Ba5 Bd8 Bb6 Qe7 Ba5 Kd7 Bb6 Rc7 Nb7+ Kc6 Ba5 Qd6 Bb6 Rg7 Bc7 Nc5 Kb4 Ngf7 Qd1 Qd7 Qg1 Ncd6 Ka5 Nca6 Rf4 Qg4 Rf1 Qd7 Rff2 Ndc4+
b1rbB3/Q2NP1nb/1B3N2/2n1B1BR/P3B1nK/4b3/rb1N4/kbRq3r w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Kg3 g5 h4 c5 d4 f5 e4 b5 a3 f4+ Kg2 c4 d6 Ke6 d7 f3+ Kg3 f2 h5 b3 h6 c3 h7 b2 Qe1 c2 Nd2 b1B Bd3 f1N+ Kf2 g3+ Kg2 b4 Kh3 g4+ Kg2 b3 Rh5 b2 Ngf3 Be7 Qe2 Bb7 Qf2 Nf6 Nh2 Na6 a4 Ne8 Qe3 Rc8 Qg1 Rf8 h8B Ng7 Qe3 Ba8 d5+ Kf7 d6 Ke6 Qa7 Nc5 Ba6 Rf3 Bb7 Ra3 Bc6 Ra2 Bb7 Qc7 d8B Qd7 Bb6 Qd8 d7 Ne3+ Kg1 g2 Kf2 g1B+ Kg3 Qc7 Bc6 Bd8 Bb7 Qd6 Bd5+ Ke7 Kh4 g3 e6 Kf6 e7 g2 e8B Ng4 Bc6 Be3 e5+ Ke7 e6 Kf6 e7 g1R Be4 Rh1 Rh7 Ke5 Rh6 Kd4 Rh5 Bc7 d8N Kc3 Ne6 Bd8 Nf8 Qd3 Nf1 Qd1 Nd7 Bg1 Bh6 c1B Nd2 Be3 Bg5 Bd3 Nf3 b1B Nd2 Bbc2 Rb1 Ba3 Ra1 Kb2 Rc1 Bb1 Rc3 Nge6 Be5 Ka1 Rc1+ Bb2 Kg3 Nh6 Ng4 Ng7 Ngf6 Ng4 Bh7 Re1 Be4 Rg1+ Kh4 Bc2 Bd5 Bh7 Be4 Rh1+
1nB2q1n/2K3NN/4BN2/N1Rrr2r/1PQb4/nnN2R2/3rn1bP/k1B3b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 e4 c5 b4 a5 b6 f5 b7 g5 Ra3 c4 Qe1 f3 Ke3 g3 Bg2 g4 Kf4 c3 Bb2 c2 Ba1 c1N Nh3 a4 Rc3 a3 Re3 a2 Rc3 f2 Qe2 f1R+ Qf3 Ra5 Bb2 a1N Ng5 Na6 b8N Nc2 Nd7 Rh5 Nh7 Ne7 Ndf6 Nb8 Bh3 Rd1 Qe2 g2 Rf1 Nb3 Bc1 g1N Qb5 g3 Qd3 Rc5 e5+ Kc7 d6+ Kc6 d7 g2 e6 Rd2 Qe2 Bb7 d5+ Kb6 Ke5 f4+ Kd6 f3 Qe4 Ng6+ e7 Kb5 Rc4 Qe8 d8N Ka4 Bc8 f2 Nc6 Nh8 Kc7 Ne2 d6 g1B d7 Bh6 d8N Qf8 e8B Be3 Qe6 Bd4 Bf7 Rcf5 Na5 Bg2 Qa6 Rd5 Ne6 Rhe5 Ng7 Rh5 Re1 Rhe5 Rc3 f1R Rc5 Rff5 Bfe6 Rh5 Rd1 Na3 Rf1 Na1 Nc4+ Kb3 Nc3 Kc2 Na5 Nb3 Rf4 Rh4 Qc4 Rhh5 Na2+ Kb1 Nc3+ Ka1 Rf2 Rh4 Rf3 Rhh5
1bN5/Q7/1N1P1qkb/1n1R1nB1/BKn1N1r1/1r1PNr2/2b3rr/1RB1nN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 f5 g4 Kf7 e4 a5 b6 c5 g5 h5 b7 f3 e5 f2+ Ke2 a4 Kd3 c4+ Kc3 f4 b5 a3 d6 a2 b6 f3 Bh3 f1N Bb2 f2 Qe1 Ne3 Qc1 f1R Bd7 h3 Qd1 h2 Bc1 h4 Ba4 h3 Kb4 c3 Ne2 c2 Na3 Kg6 Ng3 Nc4 Rb1 Rf3 Qg1 a1N Nf1 Nh6 e6 Qf6 e7 Rg8 e8N Nf5 d3 Be6 Qc5 Bh6 Qa5 Rg7 Qa7 Bf7 Rg1 h1R Rg4 h2 Rd4 Rg1 Rd5 Nce3 Nc4 h1R Nh2 Rg4 Nf1 Qe5 Nf6 Rh2 Ne4 Qf6 Kb5 Nc6 b8B Rgg2 b7 Ncd4+ Kb4 Nb5 Bc7 Rb8 Bd8 Bg8 Nb6 Nc4 Nc8 Ra8 b8N Rg4 Bf4 c1B Nd7 Be3 Ndb6 Rb8 Be7 Bf2 Bc1 Bd4 Nf2 Bf7 Nd1 Bg1 Nde3 Nc2+ Kb3 Ne1 Kb4 Kh5 g6 Rg8 g7 Kg6 Nc2 Bd4 Nce3 Be8 Na8 Bb6 Bd8 Bc7 Nab6 Rb7 Be7 Bb8 Bd8 Rf8 g8N Rff2 Rc5 Rfg2 Re5 Bc6 Be7 Bf3 Rd5 Bd1 Bd8 Bc2 Be7 Qh8 Nf6 Rf7 Ne4 Qg7 Bg5 Qf6 Nf2 Rfe7 Ned1 Re3 Ne4 Rf3 Nd7 Rb6 Nde3 Ra6 Ndb6 Ra5 Bb3 Ra3 Ba4 Rb3+
4Bbr1/K3PPnn/2rN1R2/qN2kb1n/3nBR1n/2B1nr1Q/q7/NB5B w - - 0 1 illegal: No possible last move, all moves rejected
B2R1B1r/2B3Qq/bnq5/2N1B1NP/n1nbnK1P/2n3rr/Rr1R4/5B1k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 Kf6 b4 Kg5 c4 Kh4 h3 Kg3 h4 a5 b6 d5 c5 g5 c6 f5 e5 f3 c7 a4 e6 f4 b5 d3 e7 a3 e8R a2 b7 g4 b6 f2 Nc3 d4 Qb3 f3 Na4 Bg7 Qc4 Nf6 Nc3 Qe7 Na4 Nbd7 b8B Ba6 b7 Ne4+ Kd1 d2 Bg2 f1R+ Kc2 d1N Kd3 f2 Ba3 Ndc3 Rd8 Nb6 Rc8 Rb1 Nf3 f1N Nc5 Rb2 Ng1 Nfd2 Rf8 Nca4 c8B+ Qd6 Ke2 d3+ Ke3 Qc7 Rd1 a1Q Rh2 Qc1 Nh3 Be5 Rg8 Qh7 Qf7 Qc4 Bc7 Qd5 b8B Qc6 Rhh1 Ra7 Rhe1 Kh2 Bf1 g3 Bb7 g2 Ba8 g1R Qg7 Kh1 Ng5 Bd4+ Kf4 Rg3 Re2 Ndc4 Rd8 d2 Ra1 d1N Rd2 Rh3 Ra2 Ndc3 Be5 Rd7 Bbc7 Re7 Nb7 Ree8 Bf8 Re6 Nc5 Rg6 Nf7 Rg2 Ng5 Rgg3
BrrQ1B2/1rr4k/1b1BKB2/n3P1qq/N6b/4N1Rb/B1P5/b1n1rR1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 a5 Kg3 d5 Kf4 f5 b4 Kf7 e4 Kg6 h4 a4 b6 g3 b5 d3 h5+ Kh7 b7 g5+ Kf3 a3 e6 d2 e5 f4 Kg4 f3 Kf5 g4 b6 a2 h6 f2 Bh3 f1R+ Nf3 d4 Qe1 d1Q Qd2 g2 Ba3 g1B Nc3 g3 Bg2 d3 Rh3 Nd7 b8N Be7 b7 Bb6 Nc6 Bh4 b8B Bb7 e7 Re1 e8B Qg5+ Ke6 Ne7 Na5 Nc6 Bf7 Rc8 Ng1 Qdh5 Nc4 Na5 Bbd6 Rab8 Nge2 Rb1 Bh1 g2 Ng3 g1R Na4 Rge1 Ne3 Bg2 Bf8 Rc7 Bad6 Rb5 Rb1 a1B Qd1 d2 Rc1 Bf1 Ba8 Bg2 Nh1 Rbb7 Rg3 Rc8 Qg4 d1R Qd4 Rd3 Qd5 Rdc3 Qd1 R3c7 Qd2 Re2 Rf1 Re1 Qd5 Nb8 Qd4 Nb3 Qd1 Nc1 Bg8+ Kg6 h7 Nc6 h8B Na5 Bf6 Rbb8 Ba3 Rb1 Qd8 Rb3 Bf7+ Kh7 Bae7 Bc5 Bd6 R3b7 Be8 Ba7 Bc6 Bc5 Bd5 Bb6 Ba2 Bh3+
BB2b2N/4bK2/R3N2P/3R1Q2/P1nBN3/1bbkq3/nr4BB/n1rqb1n1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 b5 a4 f5 h4 c5 d6 g5 h6 g4 h7 g3 d5 b3 d7 g2 Ke6 b2 h5 f3 d6 b4 h6 f4 Rh3 f2 Kf7 b3 Re3 f3 Re8 Nc6 Qd2 Be7 Qe1 Rb8 Kg7 Nb4 Bd2 Na2 Nc3 b1N Nd1 b2 Ba5 Nbc3 e4+ Ne2 e5 b1Q e6 Qb3 Kf7 Qe3 Bc7 Rb2 Kg6 Nf6 Qa5 Ne4 Rg8 Kd3 Kf7 c4 Nc3 Nd2 Nh3 g1B Rg6 Nb3 Ne4 c3 Bg2 f1N Rd1+ Nfd2 Qf5 f2 Bb8 f1B Nhg5 c2 Rf6 Re8 h8N c1B Rg6 Na1 Rf6 Qa5 d8B Bf2 d7 Be1 Bb6 Qd5 d8B Ng1 Bdc7 Bd7 Bh2 Rc8 Bd4 Bb5 Rg6 Bc4 Rf6 Bb3 Rg6 Bb4 Rf6 Bc3 Rg6 Qd6 Rf6 Rc4 e7 Be2 e8B Bh5+ Rg6 Qd8 Bc6 Qd7+ Kf8 Rc5 Rf6 Be8 Ba8 Kc2 Bbg3 Bb4 Bde5 Ba3 Rg6 Rc4+ Kg8 Be7 Ra6 Rc3+ Ne6 Nc4 Rd4 Bcd2 Bg7 Qd8 Bb8 Qd5 Qg6 Qh5 Rd5 Qd1 Bd4 Kd3 Qf5 Rc1 Kg7 Bc3 Kg8 Bd7 Kf7 Be8+
Q2R2n1/2rBB3/1r1qnP1N/1R2rn2/1n1B1b2/R1R5/1n1r1NbP/KR2q1k1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 Kd7 Kd2 Kd6 Kc2 c5 b4 a5 Kb2 g5 f4 e5 f5 e3 f6 e4 b6 g3 b7 g4 b5 e2 b6 e1Q Be2 a4 Be3 g2 Qc2 a3+ Ka2 c4 Bg5 c3 Qd2 g3 Bf1 e3 Qf2 e2 Bh6 c2 Bg5 c1R Qf3 Nc6 b8R Bh6 b7 Ra5 Qc3 Bh3 Rc8 Nce7 b8R Nf5 Bh4 Bf4 Qf3 Rc7 Nd2 Rhh7 Bg5 Rhd7 Rb5 Ra6 Nb3 Rb6 Bh4 Re7 Rb1 Re5 Ka1 a2 Ra8 Qd7 Ra3 Qc6 Na5 Qd7 Nc6 Qe6 Nd8 Qe7 Kb2 a1N Qe4 Nc2 Nf7+ Kd7 d6 Ke6 d7 Nb4 d8R Qd6 Nf3 g1N Nd2 g2 Ka1 Nf3 Qa8 g1R Bf2 Rg6 Ne4 Bg2 Nh6 Ng5 Be3 Rgg7 Nf2 Rc2 Rg1 Rd2 Rc1 Rc7 Rh1 Rec5 d5+ Ke5 Rb1 Ne6 Rc1 Qc6 d6 Rcd5 d7 Qd6 Nh3 Ke4 Nf2+ Kf3 Rg1 Bh1 Bh3 Bg2 Rh1 Qf1 Rg1 e1N Bd4+ Ned3 Rb1 Qe2 Rgc1 Qe1 Rcc3 Ke2 Re8 Kf1 d8B Rdc5 Be7 Kg1 Rd8 Re5 Bg4 Ng3 Bf5 Nb2 Bh3 Ng7 Be6 N3f5 Bd7 Ne6
1q2r1BB/Bnrn1b1P/1b2br1Q/2P2R2/1kBRq3/3RN2B/3KNb2/1r1b4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 c4 Ke7 b4 g5 e4 f5 h4 d5 h5 a5 h6 a4 h7 d3 b6 g3 b7 f4 b5 f3 e6 Kd6 e7 Kc5 e8B d4 e5 f2+ Kd2 a3 e6 g2 e7 g4 b6 g3 Bg6 a2 e8B Nd7 b8B Ne7 b7 Ra7 Be5 Kb4 Na3 Nc6 Be4 Na5 b8R+ Nb7 Qe2 Bc5 Bf5 Bb6 Kd1 d2 Bf7 Re8 Qe3 Qc7 Kc2 d1B+ Kd2 d3 Qh6 Bb3 Ne2 g1Q B5h3 Qg2 Bg8 Qe4 Bh8 g2 c5 g1B Nc4 Qd8 Ne3 Bf7 Bcb2 Qc7 Rd1 a1R Bbe5 Rb1 Rh2 Qd8 Rg2 Qc7 Rg5 Qd8 Ra8 Qc7 Rf5 Qb8 Bfg2 f1R Bf3 Qf4 Bd5 Qe4 Bc4 Bf2 Bf4 Nd6 Bg3 Rc7 Ra3 Nb7 Ra6 Ba5 Rd6 Bb6 Bh2 Rg1 Rd4 Rg6 Bg3 Rf6 Qg5 Qa7 Qh6 Rcc6 Bb8 Qa8 Ba7 Nf8 Bf1 Rc7 Bh3 Rb3 Kc1 Qb8 Rf1 Bce6 Rd1 Nd7 Rd2 Rb2 Rc2 Rb3 Rc3 d2+ Kd1 Rb2 Rcd3 Rb1+ Kc2 d1B+ Kd2 Qg4 Rh5 Qf4 Rf5 Qe4
r1qK4/1bNb1BbR/1r6/8/k1nRNr2/NbQqn2q/P1PB1N2/2R2N1r w - - 0 1 illegal: No possible last move, all moves rejected
1r2BnKb/1k3BqB/3Bb1N1/1N3Q2/1RnnP3/1q3R2/q1bBPN2/rb4q1 w - - 0 1 legal: proof: h4 b5 d4 g5 a4 gxh4 axb5 e5 f3 e4 fxe4 c5 Rh2 cxd4 Rh3 Bg7 Rh1 Bf8 Kf2 a5 Kf3 h5 Kf4 f5 Ke5 d5 g4 Kd7 b4 Kc7 c4 d3 c5 a4 b6+ Kb7 g5 f4 b5 d4 g6 f3 g7 d2 Nh3 f2 Bb2 a3 Qc2 d1B Qc4 d3 Bc3 a2 Qf7+ Ne7 Kf6 d2 g8B Bc2 Na3 d1B Bd2 Nc6 Rb1 Qd7 Bh7 Nd4 Rb4 a1Q Bg2 f1N Nf2 h3 Bf3 h4 Bh5 Ne3 Rf1 h2 c6+ Kb8 c7+ Kb7 Qe6 h1Q Kf7 h3 Qf5 h2 B5g6 Ra6 Bh5 Qf3 B5g6 Ka8 b7+ Ka7 b8N h1Q b6+ Kb7 Nc6 Bg7 Ne5 Qg1 Bh5 Bb1 Nb5 Nc4 Ng6 Qfa3 Ne5 Q1a2 Ng6 Kc6 b7 Q3b3 b8B Bdc2 Ng4 Ra4 Rf3 Kb7 Nf2 Ra6 Ba7 Rg8 Bc5 Bh8 Bd6 Ra4 Qe5 Qdg4 Qc5 Bd7 Qf5 Rb8 c8B+ Kc6 Nh4 Ng6 Kg8 Nf8+ Ng6 Q4g3 Bb7+ Kb6 Bc6 Be6+ Qf7 Raa8 Bd7 Kb7 Be8+ Bd7 Qf5 Be6+ Bf7 Qab2 Bg5 Ra1 Bd2 Q2a2 Qc5 Qe5 Qc8+ Ka8 Qc5 Qgh2 Ne7 Qef4 Qf5 Kb7 B5g6 Bd7 Be8 Be6+ Bgf7 Qe5 Ng6 Qg1 Nd3 Qf6 Nf2 Qg7#
b6r/1Q2NNR1/R1RBnrq1/b2Br1nP/7q/2qP1B2/1r4nB/1B2k1qK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Ke7 Kg2 Ke6 h4 Kd5 e4+ Kd4 b4 a5 b6 c5 b7 g5 b5 f5 d3 c3 b6 c4 e6 c2 e7 a4 e8B a3 h5 g3 e5 a2 e6 c3 e7 g4 Qe2 f4 Qe6 Ra5 Rh4 f3+ Kh1 f2 Nd2 g2+ Kh2 Re5 Nh3 Ke3 Bb2 c1Q Nf4 c2 Qd7 Nh6 Qc7 Nd7 b8R Bb7 Bf7 Nc5 e8B Ne6 Be2 f1R Ba4 Kf2 Ba3 Ba8 b7 Bb4 Bf3 Ke1 Ng6 Ba5 Rc8 g1R Bg8 Nf7 b8B Nfg5 Nc4 Qd1 Bb3 c1Q Bd6 Qc3 Ne7 Rh1+ Kg2 g3 Qb7 Qe8 Rh3 Qg6 Bc2 Qc1 Bb1 Qf4 Rc6 Qh4 Bd1 Rff5 Bf3 Rh2+ Kg1 g2 Rg3 Rf6 Rg4 Rb5 Ne5 Rb2 Nf7 Rh3 Bd5 Re3 Bf3 Re5 Bbc7 Nh3+ Kh2 g1N+ Kh1 Ne2 Bb8 N2f4 Rg3 Ng2 Rg5 Qf5 Rg7 Qg6 Bbc7 Re4 Bh2 Nhg5 Bd6 Re5 Nd8 Nf8 Bgd5 Nfe6 Nf7 Bd8 Ba3 Kd2 Bd6 Bc7 Bc2 Bb6 Rb1 a1Q Rc1 Qa7 Ra1 Bd8 Raa6 Ba5 Bb1 Ke1 Qc8 Qb6 Qb7 Qg1+
1N3Nb1/2q1R3/3BN2k/2NQn2P/r1n1BP2/nr1qR2K/nbq1r3/NB3q2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 c4 e5 b4 a5 f4 g5 Kf2 Kg7 Kg2 d5 b6 d3 b5 g3 h5 g4 f6+ Kh6 f7 d4 b7 d2 c5 e4 c6 a4 c7 a3 b6 d3 Be2 e3 Qe1 d1N Nd2 a2 Nf1 d2 Rh4 Nc6 b8N Na5 b7 Ba3 f8N Nc4 Nh3 Be6 c8B Nc3 Qf2 d1Q Nh2 Bb2 Bd7 Qc7 Bc8 Ne7 Ng5 Qd3 Nf1 Ng6 Rh3 Bg8 Nge6 Ra4 Nd2 Nge5 Bf3 e2 Na6 e1R b8N Re2 Nb3 Qc2 Rb1 a1N Be4 Na2 Nac5 Qd3 Bd2 Nc2 Re1 N2a3 Na1 Rh7 Bb4 Rg7 Kh1 g2+ Kh2 Qc2 Rc3 g3+ Kh3 g1Q Re3 g2 Qf3 Qf1 Bcb7 g1Q+ Qg2 Qd1 Bb1 Qc2 Be4 Rf7 Rd1 Qgf2 Rd7 Qd3 Re7 Rf6 Ng7 Rb6 Nge6 Qfd1 Qh1 Q1c2 Qd1 Qdb3 Qd5 Qbd3 Nca6 Qe1 Bd6 Rb3 Nac5 Qf1+
2BK4/1NRQ2B1/bN2Rn1R/r2qP2r/3nnR1b/1q2k3/1Pq1rR2/1q1n1B2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 e4 h5 g4 f5 g5 h3 d3 h2 g6 h4 g7 a4 d6 a3 d7 a2 Ke6 Kd4 b6 c5 b7 f3 e5 f4 Qe2 c4 Nh3 c3 Nd2 c2 Ne4 f2 Qd1 f3 Nf4 h3 Nc5 Rh5 Nd5 Be7 Bh6 c1Q Nb6 Nf6 g8B Qc2 Bg7 Ke3 d4 Nc6 b8R Ra5 d5 Ba6 Rc1 a1Q d6 Qa3 Nb7 Nd4+ Kf7 Qac3 Bh7 Qa3 Bf5 Qad3 Rc8 Qdb3+ Rc4 Qa8 Nd8 Qae4 Nb7 Qb1 d8R Qec2 Re8 Bd8 Rg1 h1N d7 h2 Rg2 Ng3 Re6 h1Q Rh2 Be7 d8R Nge4 Rh8 Qg2 Rh6 Bd8 Be2 f1R Bg4 Rf2 Bf1 Rd2 Bf5 Qh1 Rf2 Re2 Ra4 Qcd3 Rc7 Qdc2 Rg2 f2 Rac4 Ng8 Ke8 Bh4 Bh3 Ngf6+ Kd8 Nf3 Qd7 Nd4 Rh2 Qf3 Bfg2 f1N Rb4 Nfd2 Bf1 Nc3 Rf2 Qfd5 Bg4 Nd1 Ra4 Nf5 Raf4 Nde4 Re8 Nfg3 Qd6 Bc4 Bc8 Nf5 Re6 Nd4 Qd7 Ba6
K1nBQ3/b2b1r2/1NBN2P1/2k2rBB/2n1Rq1B/3b2qP/N1q5/2q1br1R w - - 0 1 illegal: No proof kernel
N1B1K2B/6P1/N4b1r/br5q/2R1nR1r/2r2B2/nBB1bPn1/1QRb1kn1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 c4 Ke5 b4 Kf4 g6 e5 c5 h5 g5 a5 g7 d5 g6 h4 c6 d3 Kc3+ d2 c7 d4+ Kc4 e3 b6 h3 Kb5 d3 b7 a4 Nc3 e2 Bg2 e1N Rh2 a3 Bf1 e4 Qe2 a2 Nf3 e3 Ne4 d1R Nfd2 Nf3 Qe1 e2 Nc4+ d2 Bb2 Rh6 Nc5 Rc1 Na6 d1B Bg2 Rc3 Nb6 Nc6 b8B Bg4 Rc1 Ng1 Bf3 Nf6 g8B a1B Bb3 Qe8 Bc2 Ne4 c8B+ Bd6 Qf1 e1N Bc7 Ra7 Na8 Ng2 Kb6 Qh8 b5 Nb4 Bd8 Rac7 Bf6 R7c5 Kb7 Be7 b6 Bd8 Qb5 Qe8 Bh8 Na2 g7 Qh5 Kb8 Rd5 b7 Ba5 Rh1 h2 Qb6 Rb3 Kc7 Rdb5 Kd8 Rc3 b8R Be2 Rb7 Bd1 Rc7 Be2 Rc4 Bd1 Be2 Bf3 Bed3 Bfe2 Kd7 Kg4 Qg6+ Kf3 Ke8 Nh3 Re1 h1R Rg1 Nd2 Bdf5 Ne4 Bb7 Rh2 Bfc8 Rh1 Re1 Rh2 Rh1 Ng1 Bd5 Rh4 Bc6 Bf1 Rh3+ Ke2 Rf3 Ke1 Rf4 Be2 Bd5 Kf1 Bc6 Ng3 Bf3 Rcb3 Ba3 Bf6 Bb2 Rc3 Bb3 Qc5 Qb1 Ne4 Bc2 Qh5+
8/2bn2N1/1b1RRqp1/Pn4r1/1R1b2P1/1Q1q1rNK/q2nr2R/B1k1NR1B w - - 0 1 illegal: No extended proof kernel
b3K3/1P1n1Q1B/BBp5/5nN1/2r1b2k/1qRBrPb1/RNqq2r1/3n1B1N w - - 0 1 illegal: No proof kernel
NK4b1/1BnRB2Q/1Bbnkn2/2PR2b1/R3nPr1/N5pn/1r2B1q1/1B1r4 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Kd2 Kf7 Ke3 d5 Kd4 g5 Ke5 b5 c4 b3 a4 d4 f4 b4 h4 d3 a5 d2 c6 g3 c5 g2 h5 b2 c7 g4 h6 b3 h7 g3 f6 Na6 Ne2 g1N Rh6 Rb8 Nec3 Bb7 c8B Nh3 Rh5 Bc6 Qc2 d1R Ra4 Qd2 Be2 Nc7 a6 Bh6 a7 Bg5 Na3 b1N a8B b2 Ncb5 Nc3 Bf5 b1B Bb7 Ba2 Qd3 e6 Kd6 e5 Be4 Qb2 Bd2 Be6 Bf5 e4 Qc2 e3 Qe4 N3d5 Ba5 Nh6 Bb6 Rhg8 h8R Rg7 Rd8 Rg6 Bf3 e2 Qb1 e1N Be2 Nd3 Rd7+ Ne7 Be4 Ng4 Qc2 Ndf2+ Qd3 Kf8 f7 Nf6 Bf5 Kg7 f8B+ Kf7 Be4 Bh4 Rf5 Rg4 Rd5 Bg5 Qb1 Rd4 Qh1 Rd1 Bb1 Qc2 Qf3 Qe4 Qd3 Qg2 Qf5 Ke8 Qh7 Bg8 Ke5 Nf5 Be7 Ng7 Kd6 Kf7 Qh4 Na6 Nc7 N2e4+ Ke5 Nge8 Na8 Nac7 Qh8 Ng7 Qh7 Rf1 Kd4 Ke6 Kc4 Rg1 Kb4 Nge8 Ka5 Nb5 Ka6 Nbd6 Ka7 Nc7 Ra5 Rc1 Ra4 Rd1 Bba6 Rc1 Ba5 Rb4 Bb6 Rb5 Kb8 Rd1 Bb7 Rb2
n1Bqb3/KrB1BR2/5NBn/b2nq3/1NBPP3/b1r1p1k1/NR1Q4/5bb1 w - - 0 1 illegal: No proof kernel
1QB5/b3Nq2/6bk/B4BNp/nnNr1P2/2B2n1n/K1Prq1n1/R1B1R1b1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kg7 b4 e5 f4 a5 g5 h5 g6 d5 b6 e4 b5 h3 f6+ Kh6 g7 a4 f7 d3 Kc3 a3 Kb3 e3 b7 d2 b6 h2 Bb2 a2 Nc3 d4 Ne4 e2 Qb1 d1Q Nf2 e1N Ne4 d3 Bc1 d2 Be2 Bf5 Nh3 Qd5+ Kb2 Bc5 f8N Qf7 Bd3 Qe2 Ba6 Nd7 b8B Ne7 g8B Nc6 b7 Ba7 Ng1 Bg6 Ng5 Nde5 Bc7 Ng2 b8B Nb4 Ba5 Nf3 Be5 Rd8 Bc8 Rd4 Bh7 d1N+ Ka3 Nb2 Bf6 Rc4 Bc3 Na4 Qb2 Rd4 Qb3 Be4 Ng6 Rhd8 Ne7 Rd2 Bhf5 R8d4 N1h3 Bd3 Re1 h1N Ne4 Nf2 Nhg5 Nh3 Nd6 Be4 Nc4 Bd3 Bfd7 Bh7 Bf5 Bg6 Rb1 a1B Qb2 Na2 Qb8 Bb2+ Kb3 Ba3 Ra1 B3c5 Ba3 Nb4 Bc1 R4d3 Ka3 Bg1 Kb3 Rd4 Ka3 Nc6 Ka2 Nb4+
k2N1N2/4Q1R1/N3n2N/2P2P1K/1qr5/1bRB1pBn/rb1r1r1B/qr2n2N w - - 0 1 illegal: No proof kernel
3BN2r/4n3/2q4P/1p1Bq2Q/4bq2/4BRqN/PNNbkbr1/1K1NqRn1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kf7 h4 Kf6 d4 g5 Kd2 e5 Kc2 c5 h5 b5 d6 b3+ Kb2 g3 h6 e4 d7 e3 d5 g4 d6 c4 Rh5 g2 Rh3 e2 Qc2 e1Q Nc3 g3 Kb1 b2 Qd1 Qde8 d8B+ Ne7 d7 Qe5 Be3 Nc6 Qh5 Bb7 Nd1 c3 Bc4 Nd4 Bd5 Ra3 Ba5 Qa8 d8N Nf3 Nf7 Qa6 Bc7 Qc6 Nd6 Ra4 Bd8 Re4 Bd2 Re2 Be3 Rd2 Nc4 Rf2 Ne2 g1B Nd4 g2 Nc2 Re2 Rg3 Bf2 Rh3 g1Q Rg3 Qce6 Rh3 Qg6 Rg3 Ng1 Rf3 Kf7 f6 Bc6 Qh4 Qg3 Qh2 Kg6 f7 Bg7 f8N+ Kf5 Nh7 Kg4 f5 Qef4 f6 Qee5 f7 Bf6 f8N Bg5 Bf7 Be4 Ne6 Rd2 Nc7 Re2 Bb6 Rd2 Bd5 Re2 Rd3 Rd2 Be3 Kf3 Ne8 Ke2 Bf7 Qff6 Bd5 Qc6 Nb4 Bf4 Ng5 Rc2 Nh3 Bg5 Bd4 Bd2 Be3 Qee6 Bc5 Bg6 Nf4+ Kf1 Rf3 Qe5 Qh5 Bc1 Nde3+ Ke1 Nh3 Be4 Na3 Re2+ Nd3+ Kd2 Bd4 Be1 Ba7 Rg2 Bab6 Ke2 Kc2 Bf2 Bd4 Qcf6 Bc5 Bd2 Rf1 Qfg5 Kb3 b1Q+ Nb2 Qe1 Ned1 c2 Be3 c1Q Nd3 Qc5 Nc2 Qe6 Kb2 Qee5+ Kb1 Qc6 Nb2 Qg5f4
b2N1N1b/q1b2n1R/R2BPNbp/1nQq3r/2P3r1/1BN5/1n1Nb3/1R2K2k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 e4 Ke7 b4 Ke6 c4 Ke5 g4 a5 g6 f5 b6 d5 b7 f3 g5 a4 b5 d3 g7 a3 b6 d4 g6 a2 Bd2 f4 Rh5+ Bf5 Bc1 f2+ Kd2 f3 Ne2 Qd7 Rh1 Nh6 g8N Nf7 g7 Na6 b8R Bg6 b7 Nc7 Rd8 Nb5 b8N Bd6 Rh4 Bc7 Bh3 f1B Ne7 f2 g8N Bg2 Qg1 f1B Nec3 Be2 Bg4 Kf4 e5 Kg3 e6 h6 Nf6 Rg8 Ba3 Ra5 Nec6 Qe7 Re8 Qc5 Bf5 Qa7 Re7 Kf3 Rh1 Rg7 Kc1 d2+ Kc2 d1N Kd2 d3 Nd8 Kg3 Ke1 Nb2 Qc5 Ba8 Nbd7 Kg2 Nd2 Rg8 Rb1 a1B Nf8 Rg7 Bg4 Rg8 Rh5 Rg7 Rd5 Kh1 Rd6 Rg8 Ra6 Rg7 Qf2 Rg8 Bd6 Rg7 Nf1 Rg8 Qc5 d2+ Kf2 d1Q Nd2 Rg7 Bf5 Rg8 Bc2 Rg7 Bb3 Rg8 Nf1 Qd5 Rd7 Bf5 Ke1 Rg4 Nd2 Bg6 Bc2 Ng5 Rh7 Nf7 Nd1 Ra3 Ba4 Rh3 Nc3 Rh5 Bb3 Nd1 Na4 Bd4 Nc3 Nb2 N6d7 Bg7 Nf6 Bh8
RB1B1K1B/Q1q2n2/1qPbq3/n1B2p2/2N2N2/rq2R1Rn/P5q1/1B1b1rk1 w - - 0 1 illegal: No proof kernel
RB1K1NB1/Q1B5/2Pnb3/3Pk3/nbRN2r1/1Rbp1b1R/3bqqr1/n6R w - - 0 1 illegal: No proof kernel
R1R3q1/4P3/3qrN2/r2bBP1R/k2r3p/1n1bR1KB/1n1NbQ1R/bNb5 w - - 0 1 illegal: No possible last move, all moves rejected
Q2R1bqb/4p1N1/1q2q1R1/rrn3RN/1N1PP1b1/2nNB3/b2b4/1kN2KB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 e4 Kd7 h4 Kd6 b4 Ke5 d6 Kd4 d3 c5 h5 f5 b6 a5 b7 f3 g6 f2+ Kf1 g3 g7 c4 b5 a4 d7 c3 h6 f4 h7 c2 b6 a3 Rh6 a2 Nh3 Ra5 Nc3 Nf6 g8N Na6 b8N Nd5 b7 Nc5 Rg6 Qb6 d8N Bg4 Nf6 Rb5 Bd2 c1B Nh5 Ra5 Rb1 a1B Na2 Nc3 Na6 Rg8 h8R Qe6 Rgh6 Rg5 b8B Bab2 Rg6 Rb5 Be1 Bd2 Qa4+ Ke3 N6b4 Ba1 Kg2 f1B+ Kg1 f3 Qa8 g2 Ba7 Ke2 Nc1+ Kd1 Bf2 Re5 Be3 f2+ Kh2 Bfe2 N3f4 f1Q Bg1 Qb6 Nde6 Qf2 Neg7 Qe6 Rb2 Qd4 Kg3 Qd8 Kf2 Qdb6 Ra2 Rf5 Ra5 Bf1 Nba2 Kc2 Nb4+ Kb1 Rg8 Bfe2 Rh8 Bd1 Rg8 Bb3 Rh8 Ba2 Rg8 Qb7 Rh8 Nb3 Be3 Nc5 Rg8 Qbb6 Rh8 Ne2 Rg8 Bf6 d4 Rg5 Nfd3 Nc3 Ra7 Rd5 Rd7 Re5 Rd8 Ra5 Ne8 Bh8 Rg5 N5a4 R8g6 Reb5 Neg7 Nc5 Rc8 Qb7 Rb8 Qbb6 Rd8 Bd5 Rh6 Bf5 Rg3 Nd7 Bh2 Nc5 Ne8 Na2 Rg8 g1Q+ Ke2 Qg7 Kf1 Qg3 Bhg1 Nc3 Rf6 Qg7 Rh6 Qh7 Rg5 Qhg8 Rhg6 Bg4 Neg7 Ba2
2r3N1/1q1P2rR/1rk2qb1/2B3qr/1KBRP3/1nBB4/1p3Q2/NNBnbr2 w - - 0 1 illegal: No possible last move, all moves rejected
4k2K/1RPb4/2N3Nn/Bn2rqB1/N2NN3/1pRQqr2/1P2B3/nnb2qn1 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Qa5 a4 Qxa4 d3 Qa2 d4 cxd4 Ke2 a5 Kd3 e5 Ke4 b5 f4 g5 c4 d6 h4 a4 h6 d3 h7 a3 f6 g4 f7+ Kd8 h5 d2 f5 b4 c5 b3 f6 g3 h6 g2 c6 Be6 Nh3 g1N Nf2 Na6 Nc3 Bd7 Rh3 Nc7 Na4 Ra5 Rc3 Nb5 Be2 Qb1+ Qc2 d1Q Qd3 a2 Bg5 Be7 f8N Ke8 c7 Qf1 Ne6 d5+ Kf5 e4 Kg6 d4 Kg7 e3 Nd8 Bd6 Ne4 Bf4 Nc6 Qc2 Rc1 a1N Rc4 Qb1 R1c3 Qc2 Rb4 Qcb1 Bg4 e2 Bf3 e1Q Be2 Nd6 Rb7 Re5 Qe3 d3 Qd4 d2 Qd3 Bh3 f7+ Kd7 f8N+ Ke8 Nb4 d1N Nc6 Bd7 Ne6 Bc1 Ned4 Nb5 Ng3 Nf6 Ne4 Rf8 h8B Ng4 h7 Rf3 Kg8 Qef2 Bg7 Q2e1 h8N Nh6+ Kh7 Qd2 Ng6 Qe3 Kh8 Qc2 Bf8 Qb1 Bb4 Qc2 Rc5 Ndc3 Ba5 Nb1 Rc3 Qf4 Ng3 Qcd2 Ne4 Qde3 Nb4 Qf7 Nbc6 Qf5
7r/KBP2nR1/bP3prB/2B1kb1B/1q2Nb1b/N1q5/2RN1b1B/2q2Q1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 b4 Kd6 e4 a5 h4 g5 c4 d3 h6 d2 c5+ Ke6 h7 d5 b6 a4 b7 f3 Ke3 g4 Kd4 g3 h5 g2 b5 f2 e5 a3 c6 a2 h6 Qf6 Rh2 Be7 Nf3 g1B Bg2 Na6 b8B Nb4 Qf1 d1Q+ Nfd2 Qa4 Na3 Ra6 c7 Qg7 Ba7 Bh4 Kc5 d4 Bb7 d3 Rb1 Kf5 e6 a1B e7 Rg6 e8B Be5 Rb3 Be6 Kb6 Bf4 Rb2 Qe5 Rc2 Qc3 Rg2 Ke5 Rg4 Rf6 Rg7 Rg6 Bec6 Qab3 Bf3 f6 Bh5 Bf5 Bb2 Nc6 Ka6 Qc4 Bc5 Nd4 Ka7 Q4b4 b6 Ne2 Ba1 Ng3 Bb2 Nh1 Bc1 Ne7 Bb2 Rd8 h8N Ng8 h7 Nh6 Nf7+ Ke6 Be7 Rh8 Nd6 Ke5 N6e4 Nf7 Ba1 Rg5 Bc5 Rg6 Qd1 f1B Qe2 Rf8 h8B Bgf2 Qd1 Be2 Qf1 Rd8 Rg8 Rc8 Bg7 Rb8 Bh6 Rd8 Rg7 Rh8 Nb3 d2 Bb2 d1Q Nbd2 Ba6 Ba1 Qc1 Bb2 Ke6 Ba1 Qd3 Be5 Qdc3 Bed6 Bfg5 Bg3 Bf4 Bh2 Ke5
2bB4/qr6/2r1Rrn1/1rBk1PB1/n5rr/1pBPK3/1r5N/bN1BRQR1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 a4 Kd6 f4 c5 h4 b5 h5 g5 f6 e5 a5 g3 f7 e4 h6 g4 f5 c4 h7 g2 d3 e3 a6 b3 a7 c3 Ba3+ b4 Nh3 g1R Qc1 c2 Bb2 g3 Ra5 g2 Bd4 b2 Ra6+ Qb6 Na3 b1R Rh2 b3 Rh1 Rb2 Nb1 Bg7 f8B+ Ne7 Ng5 Nd7 Bf6 Nc5 Nf3 Rb8 a8R Rb7 Nh2 Na4 Bg5 Bd4 Qe1 c1R+ Kf3 Bf6 Be2 Rc6 Bd1 e2 Qf1 e1R Kf4 Kc5 d6 Qa7 d7 Kd5 d8B Ng6+ Kf3 Ree2 Bc5 Re5 Rb8 Rf8 h8B Bg7 Rb6 Rff6 Ra6 Rcc7 Re6 Rc6 Qe2 Re1 Qf1 R1e4 Rg1 Rh4 Ra8 Ree4 Rb8 Reb4 Re1 R4b5 Ke3 Rd7 Rb6 Rb7 Rh1 g1R Ra6 Rgg4 Rg1 Rcc7 Re6 Rc6 Bc7 Rf8 Bcd8 Bc3 Bhd4 Rf6 Be5 Ra2 Bed4 Ba1 Bc3 Rb2
N5Bb/rqnBB2b/r7/7R/nQ1pr3/1PBP1Rb1/nN3KbR/1k4qB w - - 0 1 illegal: No possible last move
2B3qQ/1NR1B2r/1kq3r1/bn2q1P1/4R3/2NRq3/n3pPbK/2nNrRR1 w - - 0 1 illegal: No possible last move
4b2n/r3rRq1/5nN1/3R1nPp/1KQ4B/1BRP3k/Rqr3qb/n1N2B1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 c5 b4 f5 d6 Ke6 b6 a5 b7 h5 d7 f3 e5 h3 g5 f4 b5 Kf5 e6 Kg4 b6 a4 d3 h2 Kd2 c4 Kc3 a3 e7 a2 e8B Nf6 Qb3 f2 Nh3 f3 Qa3 Ra7 Nd2 Qc7 d8R Bd6 Qc5 Nc6 b8R Rh7 b7 Ne5 Qc6 Nf7 Qb6 Bd7 Qc5 Nh8 Bb2 Re7 Bf7 Be8 Kb4 c3 Nf4 c2 Bc3 c1R Bb3 Rc2 Ng6 Kg3 Rc1 a1N Ra8 Bf4 b8R Qd7 Be2 f1Q Rb7 f2 Qc4 Qg2 Bf1 Kh3 Be5 Qd4 Rd5 Qb2 Bd4 Bc7 Be5 Bb8 Bg3 Bc7 Bh4 Bf4 Be2 f1Q Rc7 Qe1 Bf1 Qe6 Rcd7 Qg8 Rc7 Qg7 Rcd7 Rc7 Ra2 Ra7 Rc7 Re6 Rf7 Ree7 Ne4 Bc7 Nc3 Bf4 Ne2 Bc7 Rd1 Be5 Nc1 Bc7 Rg1 h1N Rd2 Ng3 Rd1 Nf5 Rh1+ Bh2 Rd2 Qe5 Re2 Rb2 Rc2 Qd4 Rc3 Rf2 Rcc2 Qb2 Rc3 Rc2
4B3/1N3R2/4qb1n/rnP2P2/K1bNb1bq/N2p2B1/3nRN2/rqQ1BkN1 w - - 0 1 illegal: No possible last move, all moves rejected
1r2qq1N/4Qbn1/r2br2R/Pb5b/2nN1P1p/k1NN3B/1n2RB2/K1R3N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb2 e5 f4 b5 a4 h5 g4 c4 f6 h3 f7 c3+ Ka2 h2 g5 c2 g6 e4 g7 b3+ Kb2 h4 a5 e3 Qd2 e2 Nc3 e1Q Qe3 b4 Bc4 Nf6 g8R Nc6 Qe8 Bd7 Be2 Rh6 Rb1 Ne5 Rh8 Bb5 Be3 c1N Bf1 Ra6 Bf2 Nc4+ Ka1 Nh5 Rb2 Re6 Bh3 Ng7 Rh6 Qe4 Ra2 Nd3 Re2 Be7 f8N Ndb2 Nd7 Qe5 Qf7 Qf8 Nc5 Qh5 Qf6 Qg6 Nf3 Qge8 Rc1 h1B Ng1 Bf3 Nd3 Bh5 Qg5 Kc7 d6+ Kc6 d7 Bd6 Qe7 Bf7 Ne1 Bh5 Re3 Bf7 d5+ Kc5 d8N Nd1 Nc6 b2+ Ka2 b1B+ Ka1 b3 Nd4 Kb4 Nd3+ Ka3 Re4 Ndb2 Re2 Bb4 d6 Bc5 d7 Bd6 Ne1 Bbg6 d8N Bh5 Nd3 Ba4 N8c6 Nd1 Nce5 b2+ Kb1 Bc6 Ng6 Bd7 Kc2 b1R Nh8 Rb4 Ngf3 Rb8 Ng1 Ndb2 Kb1 Ba4 Ka1 Bb5
6b1/B1r3q1/kq2N1nb/P1p5/1r2NNQ1/1r1N1P2/1KB1nn1q/RNRB1r2 w - - 0 1 illegal: No possible last move, all moves rejected
1bq1k3/rr3RBq/4P3/5n1r/1K2R1b1/BN2PNn1/2Qp1nBR/1BqB2n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kd2 d5 b4 a5 g4 h5 c4 f5 e6 f4 c5 f3 b6 a4 c6 d3 Kc3 f2 b7 d2 b5 h3 b6 d4+ Kc4 h4 c7 d3 Qe1 d1R Ba3 h2 Nf3 h3 Qd2 Bd6 Qc2 Nc6 b8B Ra7 b7 Rh5 Nbd2 Nge7 Nb3 d2 Bg2 f1N Ra2 Bd7 c8B Nf5 Kb5 Bg3 Be5 Rb1 b8R Ncd4+ Kb4 Bf4 Rb2 N1g3 Bg7 Qc7 Ba6+ Qc8 Rb7 Bb8 Ra2 Rb2 Bd3 Rb1 Ra1 Rb2 Rhe1 h1N Be4 h2 g5 Bb5 g6 Nf2 Rf7 h1Q e3 Qh2 Rh1 Nde2 Ra2 Qh3 Rh2 Ng1 Bd3 Rb1 Be2 Ba6 Bd1 Be2 Bd4 Qh4 g7 Qe4 g8B Rb2 Ng5 Bg4 Nf3 Qd3 Bh7 Rb1 Bc1 a3 Bg7 Qdd7 Rb2 a2 Bg6 a1Q Ra2 Nh4 Ra4 Nhf5 Ba3 Qdc7 Kb5 Qb2 Re4 Qc1 Kb4 Rb2 Rf6+ Qf7 Bh7 Qg8 Rf7 Rb1 Bg6 Qh7 Kb5 N1e2 Qa2 Re7 Rb4 Qd8 Nc5 Nh4 Qc4 Rb3 Bb1 Ng1 Qc2 Qc8 Ka5 Rd7 Re4 Nhf5 Ka4 Rb6 Nb3 Ra6+ Kb5 Raa7 Kb4 Rdb7+
1Q2qn1B/1Nn2bN1/3P3k/B1R3b1/qnB1q1K1/P1rr2B1/pB2n3/NrR5 w - - 0 1 illegal: No proof kernel
n3qBr1/R1b5/P2b2B1/2B1bQNb/B1k3nN/q4prP/1R3n1K/2rBN3 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Ke7 Kg2 g5 a4 f5 d4 b5 e4 c5 a5 c4 a6 b3 d6+ Ke6 h3 b2 d7 g3 Be2 g4 Na3 b1Q Ra2 f4 Ra1 c3 Be3 b4 Bf2 c2 Nf3 c1N Ra2 b3 Rh2 b2 Nh4 Qe8 d8B Nd7 Be7 Nh6 Nc2 Qa1 Qd3 b1R Ne1 Rg8 Rd2 Qa3 Bd1 f3+ Kh1 Bg7 Bf8 g2+ Kg1 Nb6 d5+ Kf7 d6 Ke6 Qc2 Nd3 d7 Rc1 B2c5 Nf2 Rd3 Rb8 Rb3 Na8 Rb7 Bf6 Ra7 Bd8 Qb1 Bc7 d8N+ Kd7 Ne6 Kc6 Qa2 Kb5 Qb1+ Kc4 Ng5 Bf5 e6 Bg6 e7 Bh5 e5 Rb6 Qf5 Rbg6 Rh1 R6g7 Kh2 g1B+ Kg3 Rg6 Rh2 R6g7 Kf4 g3 Rg2 Bd8 e6 Nhg4 Rh2 g2 Kg3 Qb5 e8B Bc7+ Qe5 Qd7 Bg6 Qe8 e7 Nd3 Be2 Bd4 Bd1 g1B Rb2 Bge3 Qf4 Ndf2 Qe5 Bd2 Qf4 Bb4 Qe5 Qf7 e8B Bdc3 Bea4 Qe8 Bd4 Bbd6 Bb6 Rf7 Bc5 Rf4 Qf5 Bce5 Neg2 Nh6 Kh2 Rg4+ Nf4 Rg3 Nfg2 Ra1 Ne1 Rb1 Qf6 Rc1 Qf5 Nhg4+
1nBb2q1/8/p2P1B1R/1R1B1b1Q/Nq2N2K/q2P2r1/NBnb2n1/1nB1r1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 Kd4 g5 c5 e5 f5 b6 h5 d6 f3 b5 h3 Kg3 h4+ Kf2 a6 g6 f4 d3 h2 e6 h3 g7 c4 e7 c3 e8N c2 b7 Nh6 g8B Be7 b6 Nf5 Ra5 Nh4 Ra2 Ng2 Rb2 Bf5 Ba2 Rg8 Nc3 Rg3 Ng7 Qg8 Nh5 Bd8 Rb5 Ra7 Bb2 c1B Nf6 Bd2 Nfe4 Ra8 Bd5 Ra7 Be2 Ra8 Kf1 Ke3 Na2 f2 Bg4 Ra7 Ne2 Ra8 Rg1 h1Q Ne2c3 h2 Bc1 Ne1 Na4 Nc2 Bb2 Qf3 Bh3 Qfg4 Rh1 Qh4 Qh5 Ra7 Rg1 h1Q Bc1 Qh2 Rh1 Qhg4 Bg2 Qhh4 Bh3 Q4g7 Bg4 Qc3 Bb2 Qa3 Rh2 Nc6 b8B Re7 Ba7 Nb8 b7+ Nd4 Nf6 Bh7 Bc4 Rf3 Kg2 Ke2 Qf5 f1N Bb3 Nc2 Bd5 Re4 Bad4 Nfe3+ Kh1+ Kf1 Qe5 Qg7 Bc8 Ng2 Rh3 Qf7 Kh2 Rg3 Bc1 Qg7 Bdb2 Qg8 Qe8 Qhg4 Rh6 Re1 Qf7 Bf5 Qh5 Q4g7 Ne4 Qd4 Ng5 Qdb4 Ne4 f3 Bf6 f2 Bcb2 Rg4 Kh3 Kg1 Bc1 Nge3 Bcb2 Rg3+ Kh4 f1N Bc1 Bc3 Bb2 Nd2 Bc1 Nc6 b8B Nb1 Ba7 Bd2 Bd4 Nb8 Bdb2 Ng2#
1Nb2R2/1r1N1P1r/1q1nn2R/k5B1/qnr1pNBB/1nN5/PK2q2b/N6Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 d4 c5 Kd2 Kc7 Kc2 Kb6 f4 e5 d6 h5 d7 b3+ Kc3 c4 d5 b2 g5 h3 g6 h4 g7 h2 d6 e4 f6 h3 f5 Na6 f7 Nh6 g8N Qe8 d8N Ka5 f6 b5 d7 b4+ Kc2 c3 Qg4 b3+ Kd1 Nf5 Qg2 Nc7 Ne2 Rh7 Ne6 Nd6 d8B Qa4 Nd2 b1R N6f4 Ra7 Qg1 Rb7 Ne7 Bg7 f8N b2+ Ke1 c2 Nd7 Rb4 Nc3 Rc4 Be2 Bh8 f7 Bf6 Qf1 Be5 Rg1 h1N Bg4 h2 Nb3+ Kb4 Kd2 Ne6 Rg2 Nf2 Qh1 Nd3 Rg1 Ka3 Nc6 Nb4 Nh5 Bg3 Ncb8 Be5 Bh4 Bg3 Qf3 h1Q Nf4 Bh2 Rg3 Qg1 Qh1 Qb6 Rd3 Nc6 Rd5 Kb4 Rg5 Qbb5 Rg8 Qh5 Rf8 Qhb5 Ke2 Qba6 Be3 c1N+ Kd2 Qb6 Na5 Nb3+ Kc2 Rd1 Bc1 Rd5 Bd2 Rb5 Re1 Qf2 Re3 Rb7 Rh3 Nc1+ Nb3 b1Q+ Kd1 Qb6 Be3 Qb2 Bd2 Qaa3 Na1 Ka5 Be3 Q2b5 Kc2 Nb3 Bc1 Qaa4 Kb2 Nb4 Bf2 Bg1 Nfd5 Bh2 Rh6 Rc5 Bg5 Qd3 Nf4 Rc4 Bfh4 Qe2+
4N2r/R1rRPq1N/NN3b1N/3BPnB1/3qKn1q/3n3b/b1Qq3p/4Bk2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 Ke7 Kf3 Ke6 g4 Kd5 b4 Kc4 e4+ d3 g5 f5 b6 h5 b5 a5 b7 d5 c3 d4 b6 h3 e6 f4 e5 h4 g6 a4 e7 a3 g7 a2 Bb2 Nf6 g8N Nc6 b8B Ra7 b7 Nh5 Nh6 Nb4 Ng8 Bg7 Bg2 d2 Bc7 Kd3 Qa4 d1N b8N Ne3 c4 Qe8 c5 Qf7 c6 Nf5 Rh2 Be6 Ba5 Bf6 c7 Bc4 c8N Rc7 Nb6 Bb3 Kg4 f3 Bc1 f2 Kf3 f1B Nc3 Be6 Bh6 Nf4 Nb5 Kd2 Rh1 d3 Nd6 Bc4 Ne8 Bb3 Rc1 a1Q Re1 Qb2 Ra1 Qc3 Ra3 Ba2 Qc2+ Ke1 Ra4 Qc5 Ra3 d2 Ra4 h2 Nh3 Qcc4 Ng5 h3 Rg1 h1Q Nh7 Nbd3 Bg5 Nb2 Nh6 Qc5 Bb4 h2 Ra7 Qc3+ Ke4 d1Q Na6 Qdh5 Bf3 Qh4 Rg2 Qg1 Rd2 Qgf2 Rd7 Nbd3 Bg2 Qd4+ Kf3 Ng7 Bh1 Bh3 Ba5 Kf1 Bb4 Qa1 Be1 Qb4 Ke3 Qbc3 Bb7 Qd2+ Ke4 Nf5 Bd5 Qd4+
2BnbB2/4P1b1/nq1q1RR1/Bp1b4/1r4QP/NN2kB1r/1q2n1B1/2q3KN w - - 0 1 illegal: No possible last move
N1K1B1k1/1nn1p1bb/q1Q2B2/NP2r1bb/8/1nRq2B1/r5qP/1NBB3R w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 a5 Kc4 g5 Kc5 d5 b4 a4 f4 a3 c4 a2 f6 d3 f5 d2 b6 g3 b7 g4 b5 d4 Be2 g2 Qc2 d1Q Nf3 g1Q Nfd2 g3 Nb3 g2 Na5 Na6+ Kc6 d3 b8B d2 c5 Qd3 Bg3 Bg7 Qc3 Kf8 f7 Qa4 Bd1 Nh6 Qc2 Be6 Kb7 Nc7 c6 Bd5 Qc4 Be4 Qc3 Ra6 Kc8 Qgf1 Qf6 g1B Qd6 Be3 Qf6 Ne6 c7 Qg2 Qc3 Bg5 Qc4 Bb2 Qc6 Kg7+ f8N Kg8 f6 Nf7 Nd7 Nfd8 Nb6 Nb7 Na8 Rh5 Bb3 d1B f7+ Kh7 f8B Kg8 Bc2 Bh7 Bg7 Bg4 Bh8 Bg7 Bd1 Be2 Kb8 Ra7 c8B Nc7 Bd7 Bf3 Kc8 Be2 Nc4 Qa6 Be8 Bf3 Na5 Be2 Nc3 Bf3 Rb1 a1N Rb3 Be2 Ra3 Nb3 Nb1 Be3 Ra2 Re5 Rc2 Bg5 Rc3 Bh5 Rf1 B7h6 Bf6 Bg7 Rh1 Qb6 Nc4 Ra2 Na5 Qa6
3nB2n/1Pn3B1/N3qr2/N2BR3/Kn1N2b1/r2r1RP1/3pqb1b/kB4QB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Kd6 Kc2 Kc5 Kb3 h5 e4 f5 b6 d5 g6 a5 g7 f3 b7 f4 e5 a4+ Ka3 f2 b3 h4 e6 h3 e7 f3 e8B d3 b4+ Kd4 c5 h2 c6 d2 c7 Qf6 Bfb5 f1Q Ra2 f2 Bd3 Bg4 c8B Ne7 g8B Rh3 b5 Qe2 b6 f1R Qc2 d1N Qd2 Qfe6 Qe1 Ne3 Bgf7 Nbc6 b8N Rf6 b7 Nd8 Rd2 Ng6+ Kb2 a3+ Kb3 a2 Na6 a1B Ka4 Nh8 Na3 Kc3 Bb1 d4 Nc4 d3 Bcd7 Nd5 Bc6 Bc5 Na5 Nc7 Nf3 Bf2 Rf1 h1N Nd4 Bb2 Rd1+ d2 Bce4 Rd3 g3 Ba3 B4c6 Bc5 Ba3 Bb6 Bf8 Kb2 Bg7 Ka1 Be4 Bg1 Rf3 Bh2 Qg1 Nf2 Re1 Qc8 Rf4 Nd5 Nb4 Ba7 Nf5 Bc5 Bh1 Qd1+ Kb5 Rc3 Nc4 Nd3 Rf3 Raa3 Na6 Bf2 Re5 N3b4 Nd4 Rd3 Na5 Qe2 Bg8 Rab3 Be6 Nc7+ Ka4 Rbc3 Bea2 Qe6 Bd5 Ra3+
1nn1R2q/1PR1NPk1/3B1qN1/Bp3R1q/1brr2B1/B5Q1/1r1rBK2/b4b2 w - - 0 1 illegal: No proof kernel
NB6/2r2N1R/qQN1rr1b/RB4n1/rP6/NP1N2nR/3rb2p/K4nrk w - - 0 1 legal: proof: h4 d5 f4 b5 c4 g5 cxd5 gxh4 f5 b4 a3 e6 axb4 exf5 Qc2 f4 Qb3 Bf5 Qd1 Bc8 g4 Ke7 d4 Kd6 Kd2 a5 Kc2 f5 e4 h5 g5 c5 g6 h3 b3 c4 Kb2 f3 g7 c3+ Ka2 f2 Qd2 h2 Qe1 f4 Qd2 c2 Nh3 a4 Na3 h4 Qe2 f3 Qe3 Rh6 Ng5 h3 Bc4 f1R Nh7 f2 Kb2 Nd7 Bd2 c1R Ng5 Qb6 Ne6 Ne7 g8R Ne5 Rh8 Nf5 Bb5 Nf3 Rh7 Qa6 Nc5 Ng5 Nd3 Rc7 Bc3 Rd1 Ra2 Rd2+ Ka1 f1N Qg1 Bg7 e5+ Ke7 d6+ Ke6 d7 Kd5 d8N Ke4 d5 Kf3 e6 Rf6 e7 N5g3 e8N Bh6 d6 Bg4 Qb6 Kg2 d7 Be2 Nf7 Rac8 Nb1 a3 d8N Re7 Bd4 Ree6 Be5 Rc3 Bb8 Rc7 Rc2 a2 Nc6 Rb7 Nc7 Ra7 Na8 Rc7 Kb2 a1R Na3 Re4 Nb1 Ra4 Na3 Ree6 Ka1 Ne3 Rd1 h1R Rc5 h2 Rdc1 Nef1 R1c3 Nf3 Rh5 Rg1 Rcc5 Kh1 Rh3 Ne4 Bc4 Neg3 Ra5 Ng5 Bb5 Rc2 Qf2 Rb2 Qb6 Rd2
3N3B/Q1b1Nrbr/3k3B/4p1R1/K2PP2n/4R3/2rN3N/qbrRnrrN w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Bg2 h3 Qd1 hxg2 h4 Kd7 b4 a5 e4 c5 d4 g5 Kd2 e5 Kc2 c4 f4 c3 Kb3 g3 f5 c2 h5 g4 f6 Nc6 f7 Bg7 f8N+ Ke7 h6 Be6 b6 Rc8 h7 Kd6 b7 Nge7 b8N Nf5 b5 Nb4 b6 Nd3 b7 Ne1 Nbd7 Nh4 Bh6 c1R b8R R8c2 Ne2 g1R Nd2 g2 Ra3 g3 Nf6 Rf1 Ng4 g1R Ng6 g2 Ka4 Rf7 Ne7 Rgf1 Ng3 g1R Re3 Qb6 Rg8 Qb2 Nh2 Qa1+ Kb5 a4 Qe2 a3 Ka4 a2 Qa6+ Kd7 d6 Bc4 Qa5 Bd3 Qa7+ Ke6 d7 Kd6 d8N Rc6 Re2 Bb1 Re3 R6c2 Nb3 Qc3 Nd2 a1B Re8 Bb2 Rf8 Ba3 Rg8 Bf6 Rg7 Qa1 Rg5 Bg7 Ne6 Rd8 h8B Rd7 Nd8 Bc5+ Kb3 Bb6 Kb4 Rg2 Rg1 Bc7 Nh1 R1f4 Rf1 Rg1 Kb5 Neg2 Rd1 Rff1 Kb4 Ne1 Rf5 Rf8 Ng8 Bf6 Rg5 Rh7 Ne7 Rff7 Kb3 Bg7 Kb4 Qb2+ Ka4 Qa1+
Rr2q2N/Kn3nN1/1p6/2n1n1R1/kPnR1P2/2BB1N2/3rN1b1/r1Q1Nb1n w - - 0 1 illegal: No extended proof kernel
5nq1/6nR/P1BQrNN1/1nnnb2N/1P3p2/BBkN2n1/2b1r1K1/R2r2N1 w - - 0 1 illegal: No proof kernel
1rb4K/1k1NB3/nrNP3R/b2Bnb1N/Q5R1/N2q3b/1b1b2pP/4N1Bq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 c5 d4 Kc7 e4 a5 d6+ Kb7 d7 f5 e5 g5 e6 c4 d5 f3 Ke3 a4 Kd4 a3 Ke5 g3 b6 a2 e7 c3 e8N g2 b5 c2 Be3 c1B Bd3 g4 Na3 g3 Ng7 f4 Be4 f2 Nf3 g1Q Ne1 f1B Nh5 f3 Qa4 Ne7 Kf6 f2 Bd4 Qg2 Rg1 Bd2 Rc1 a1B Rc6 Ra6 Bf3 Qc7 d8B Ng6 Be7 Bd3 Re6 f1B d6+ Be4 Kf7 Qh1 Rg2 Ba5 Bg1 Qc3 Rf6 Rh7+ Kg8 Ne5 Rh6 Rf7 Kh8 Qd3 Kg8 Bb2 Kh8 Bc6 Bd5 Rf4 Re2 Rb4 Re4 Bfh3 Rg4 g2 Rd4 Ka8 b7+ Ka7 Rh4+ Rb6 Rg4 Na6 b8N B6d7 Nc6+ Kb7 Be4 Ka8 Bd5 Rb8 b6 Kb7 Rf6 Bh6 Re6 Bd2 Rf6 Nc5 Rh6 Ka6 b7 Rb6 Nf3 Bf5 Ne1 Ra8 b8N+ Kb7 Nd7 Na6 Rb4 Rb8 Rf4 Qb5 Rg4 Qd3
b6B/r1NBr1N1/rNP5/1brK1B2/2n1Q2P/7b/2nbqkpR/R3NbN1 w - - 0 1 illegal: No possible last move
1Nrb4/4R2b/2pP4/k1r2BBB/nb1Bb2b/3q1P1q/2R1Qb2/n1K1BRN1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 Kd2 a5 g4 e5 b4 h5 g5 h3 g6 c6 b6 h4 b7 Kc7 d6+ Kb6 d7 a4 g7 e3+ Kc2 a3 b5 a2 d5 e2 Nd2 e1B Ngf3 h2 Kb2 e4 Be2 e3 Ne5 h3 Bg4 e2 Rf1 h1Q Bf5 h2 Ndf3 Ra5 Ng1 Ne7 g8B Na6 b8B Nc5 Bd2 Nb3 Rc1 Na1 Rc2 Qg2 Bf7 h1B Bb4 Qh3 Bh5 Be4 f3 Bh4 Kc1 e1B Qe2 Bef2 Be1 Ba6 Bd6 Nc8 Bb8 Bb4 Ba7+ Kb7 Be3 Nb6 Bd4 Na4 b6 Rc5 d6 Qc8 d8R Bad3 Rd7+ Ka6 b7 Ka5 b8B Qa6 Ba7 Rc8 Re7 Qc4 Nd7 Qb5 Be6 Bh7 Nb8 Bde4 Bf5 Qd3 Rc4 Nc2 Be3 a1B Bg5 Bf6 Rc3 Na1 Rc2 Rc3 Bd4 Rc5 Re8 Bd8 Re5 Rd5 Re7 Rc5
K7/5nnR/P1p1NPk1/1Q2bb1N/n2qR2n/1BrrN3/1BNR1N2/1bb2n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 b5 Kd4 h5 Kc5 e5+ d6 c6 d4 h3 a4 e4 f4 b3 g4 b2 d5 e3 f6 e2 g5 e1B a5 b4 a6 h4 f5 h2 g6+ Ke8 g7 Kf7 Qe2 b3 Nd2 b1B Qb5 h3 Ra4 b2 Nc4 Nh6 g8N Bg7 d7 Bd2 Ne3 Qb6+ Kd6 Qd4 d8R Nd7 Kc7 Nf8 d6 Ng6 d7 Nh4 Bd3 Ra7+ Kb8 Rc7 Ka8 Rb7 Qc5 Rb3 Bc2 Rd3 Qb5 Rh7 Rc4 Bh8 Ba4 Rg7 Bb3 Rg3 Ne2 Rf3 Nc3 Bg7 Ncd1 Rg3 Rg1 h1N Nf2 h2 Rg2 Rf3 Re8 Ng3 Re4 h1N d8N+ Kf8 f7 Nf1 Rc2 Be5 Rh2 Kg7 f8N Nf7 Nf6 Nhg3 Nh5+ Kh6 f6 Bf5 Nfe6 Kg6 Nc7 Rc3 Nde6 Rd3 Ncd5 Rc3 Ned1 Rfd3 Nb4 Bh6 Ne3 Bg5 Nhg7 Nh5 Rd2 Bh6 Ne8 Ng7 Nbc2 Ba2 Rh1 b1N Ba3 Rc4 Bb2 Nc3 Rh3 Bb1 Rh2 Na4 Rh1 Nh5 N8g7 Rcc3 Rh2 Nf4 Nh5 Bg5 Ng3 Nh5 Rh3 Ng7 Rh2 Ng2 Rh7 Nh4 Nh5 Qc5 Nd5 Nh8 Rde2 Bc1 Nde3 Qd4 Rd2 Nf7
2R1qB1b/BR5p/4bqR1/2P5/R2b1NB1/Prb2R1r/k2bn1Qb/N2K1n2 w - - 0 1 illegal: No proof kernel
N2R4/1bBP3k/BRb2qn1/2rb2R1/1K2b2r/1pN1P1bn/1n1BRR1n/2Q5 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 g5 d4 f5 Kd2 Kf7 a4 Kg7 e3 b5 a5 c5 d6 c4 h6+ Kh7 h5 f3 a6 f2 d5 b3 Kc3 f4 a7 b4+ Kb2 g4 d7 f3 d6 g3 Ra4 c3+ Ka1 g2 Nh3 g1N Ra6 c2 Kb2 Ne7 Rh2 Bb7 Rb6 Nbc6 Bd2 c1N Nc3 Ne5 Ba6 f1B Re2 f2 Nf4 Bfg2 Nfd5 f1B Nc7 Rc8 a8R N7g6 Qe1 Qe7 d8B Nh3 d7 Bgd5 Rb8 Qh4 Na8 Nf3 Bc7 Bd6 Rb5 Bdc6 Rg5 Nh2 Rf2 Bc4 Qg1 Kg8 h7+ Kg7 Re2 B4d5 Qe1 Bg3 Rf2 Rhe8 h8R Re4 Rd8 Kh7 h6 Qf4 Re2 Qf6 Rf8 Rh4 Rf7+ Kg8 h7+ Kh8 Rf8+ Kg7 h8R Nd3+ Kb1 b2 Kc2 Bg2 Kb3 b1B Rhg8+ Kh7 Qc1 Nb2 Rd8 Bbe4 Rgf8 Qd6 Rff2 Qf6 Ka2 b3+ Ka3 Bcd5 Kb4 Bbc6 Rb6 Bb7 Be5 Rc5 Bd6 Bdc6 Bc7 Bed5+ Rf4 Bge4 Rf1 Ra5 Rff2 Rc5
1bkNr2r/PrBp1K1N/6RR/n6N/P1qR3n/2n2N1b/2NQB1n1/5r1n w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 h4 gxh4 d4 cxd4 Ke2 h5 Kd3 b5 Ke4 e5 g4 d3 a4 h3 f4 d2 c4 h2 f6 b4 Kf5 e4 Kg6 e3 g5 e2 f5 e1R f7+ Ke7 c5 h4 c6 h3 f6+ Kd6 a6 Kc7 a7 b3 Be2 b2 Na3 b1N Nf3 Nc3 Nc2 Bd6 f8N Nh6 f7 Ba6 Ne6+ Kc8 f8N Qc7 Nd8 Rf1 Nh7 Nf5 Kf7 Nh4 g6 Bb5 Qe1 d1N g7 Ne3 g8N Neg2 Bf4 Ba6 Rg1 h1N Rd1 h2 Qd2 Bd3 Be5 Bf5 Ngf6 Bh3 Nh5 Re8 Qe3 Rh8 Rd4 Rb1 Qd2 Rb7 Bg7 Bg3 Bf6 Qf4 c7 Qg4 Bg5 Nc6 Be3 Bd6 Bf4 Na5 Be5 Nf4 Rg3 Nfg2 Bf4 Rab8 Be5 Qe4 Rg6 Qd3 Bf4 Qc4+ Kg7 Ng3 Re6 h1R Nf7 Rf1 Rh6 Nh1 Kf6 Rb4 Kg7 Kb7 c8R Rd1 Rg8 Re8 Nd8+ Kc8 Bg3 Bb8 Bc7 Rb2 Kf6 Rb7 Rgg6 Rf1 Kg7 Qd3 Kf7 Qc4+
2r1qb1R/1bkN4/b1n1K1b1/4P3/nRQ3n1/r1B1R1R1/N1np3P/1rRB3B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 d5 e4 Kd7 c4 a5 b4 g5 h6 d3 c5 d4 c6+ Kd6 c7 a4 b6 a3 b5 a2 h7 d2 b7 d3 b6 Nc6 b8R Nh6 b7 Qe8 Nc3 Ng4 Qc2 d1N Bg2 d2 Bb2 Ra3 Rc1 a1N Ra8 Kd7 b8R Bb7 c8B+ Kc7 Ra5 Rg8 Re5 Rh8 Qa4 Nc2 Qc4 Rg8 Ba1 Nb2 h8R Na4 Be6 Ba6 Rb4 Bb7 Ke2 f3+ Kd3 f2 Nf3 f4 Rhg1 Bc5 Bh1 Bf8 Nh4 f3 Rg3 Nge3 Ng6 g4 Rgg1 g3 Bg4 g2 Bb2 Bh6 Nf8 Bg7 Bh5 Ng4 Nd7 Bf8 Re6 Ra1 Na2 Rb1 e5 f1B+ Ke4 f2 Kd5 Bd3 Bc3 f1B Rf6 Bg6 Rf3 Rb3 Re3 Ra3 Qe4 Bfa6 Qc4 Nf2 Bd1 Ng4 Rge1 g1R Rg3 Qc8 Ree3 Qa8 Ke6 Rf1 Bdf3 Qb8 Ra1 Rb1 Bd1 Qe8+ Kd5 Be7 Re1 Qd8 Rh5 Rb2 Rc1 Rb1 Ke6 Re8 Ree3 Bf8+ Kd5 Qe7 Rh4 Rc8 Rh8 Qd8 Ke6 Qe8+
bB2N3/1bNpB1b1/P7/RnBP1kb1/6rR/1qBr1nK1/1rn1r3/1R2B2Q w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 cxb4 Bc4 a4 Bb3 axb3 c4 Kf7 h4 Kf6 d4 g5 a4 e5 f4 b5 Kf2 b2 c5 e4 h6 b3 c6 b4 h7 g4 c7 e3+ Kg3 e2 d5 e1R a5 Bb7 c8R Nc6 a6 Na7 h5 Ne7 h6 Qb6 Nh3 Nec6 Rb8 Nb5 Na3 b1N Nc4 b2 Ra5 b3 Nd6 N1a3 Bd2 b1R Ng5 b2 Rh4 Bg7 Ne6 Ne5 Nc7 Re2 Qh1 Nf3 Be1 Rc8 h8B Nc2 h7 Qe3 Ne6 Rc3 Nc7 Rd3 Nde8+ Kf7 f6 Kg6 f7 Kf5 Rc8 Rb8 f8B Rc1 Ra2 b1B Ra5 Ba2 Bd6 Bb3 Bc5 Ba4 Be7 Ba8 Rd8 Rb6 Rb8 Rg6 Rb6 Rb1 Bc5 Rb2 Rb7 Bh6 Bhc3 Bg5 h8B Rg8 Ba7 Qb6 Bhd4 Rg6 Bdf2 Rg8 Bb8 Qe3 Kg2 g3 Kh3 g2 Kg3 Qb6 Bc5 g1B Be7 Bd4 Bc5 Ke4 f5+ Ke5 f6 Kf5 f7 Bg7 f8B Rh8 Rb4 Rh4 Bfe7 Rg4+ Kh3 Nd6 Re4 Bc6 Rc4 Qb3 Rca4 Rge4 Kg3 Rh4 Rbb4 Nb5 Ra1 Bcb7 Rb1 Rhe4 Rc4 Re5 Rg4 R5e4 Rh4 Rg4+
BN6/rbP2rr1/B2KR2q/pn1nPb2/1B1b2k1/2b1RR2/B2rBn1Q/1N6 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 fxe5 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 b4 h5 c4 f6 e6 h4 c5 h3 e7 h2 e8B a3 g6 a2 c6 d3 b5 d2 b6 Ra7 g7 Kg4 c7 f5 b7 f4 e4+ f3 e5 Qg5 Qc2 d1N Be2 Na6 b8R Bc5 Bd2 Rh7 Rb3 Qh6 Bb4 Bd4 Re3 Nf6+ Kd6 Nf2 g8B Rg7 Bd5 Bc3 Ba8 Nd5+ Bg6 Bd4 Nd2 Bc3 Rf1 a1B Nb1 Bd4 g3 Bac3 Qa2 Nb8 Ba6 Nc6 Ne2 Bb7 Rhg1 h1B Qc2 Bg2 Rh1 Bh3 Rhg1 Kg5 g4 Kh4 g5 Bf5 Rh1+ Kg4 Qb2 Nb6 Rh3 Ne7 Rd1 Ned5 Qc2 Be6 Bgd3 Bf5+ g6 Nh1 Ng3 f2 Ne4 f1R Nc5 Nf2 Rhf3 Nf4 Qc1 Re7 Bdc4 Rg1 Be6 Kh5 g7 Rf7 Re4 Be3 g8B Rf6 Ke7 d5 Na4 d4 Nc5 d3 Nd7 d2 Ba2 Nc4 Nb8 Na3 Bgc4 Kh4 Be2 Rg7+ Bf7 Bb6 Ree3 Kg5 Rg1+ Kh4 Qd1 Bbd4 Rg6 Kh5 Qe1 d1R Qg1 Rd2 Qg2 Ne6 Kd6 Nf4+ Be6 Rff7 Ba2 Nd5 Re6 Kh4 Qh1+ Kg4 Qh2 Nb5+
2b1R1Nb/1P1NK2N/R1rP1rn1/2QB2n1/nbn2prk/3rR1q1/8/N2N2B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 b4 c5 g4 f5 e4 h5 d4 a4 d6 h3 b6 h2 d5 h4 b5 c4 b7 c3 d7 c2 Ke6 h3 e5 a3 b6 a2 Nd2 f3 Bc4 f4 Ne2 f2 Nc3 f1N Nb3 Ne7 Qd4 Kh4 g5 Ra6 g6 Ne3 g7 Rg8 Qc5 Ng6 Re1 h1R Nd1 h2 Kf7 Ra3 e6 Na6 b8N Qg5 d8N Qg3 b7 Bd6 Bd2 c1R e7 Rg1 e8R h1N Ne6 Nf2 Re2 Nh3 Nf8 Ng5+ Kf6 Rh8 g8N Rh6 Nh7 Rc2 Nd7 Rc3 Qd4 Bb4 d6 Nc5 Bd5 Nc4 Be3 Na4 Qc5 Rg2 Bg1 Rc1 Rb1 a1B+ R2e5 Bb2 Na1 Rac3 Re3 Rd3+ Kf5 Bh8 Rb2 Qh2 Ra2 Rg4 Ra3 Qg3 Ra2 Nab6 Ra6 Na4 Rf8 Nf3 Ke6 Rc2 Kf7 Ng5+ Ke8 Nge5 Kd8 Rf6 Re8 Ng6 Qd4 Na5 Qa7 Rc6 Qc5 Ne5 Ke7 Nac4 Ra8 Ngf3 Ra7 Ng5 Ra6 Ng6+
2b1Nk2/N6K/BRr1QbRr/N2n2r1/8/3P1r2/qBp1BnNP/1Nnn3q w - - 0 1 illegal: No possible last move, all moves rejected
r2B1k2/1nBqbn2/2r1rB2/1P6/1R3NQ1/3pnNPB/B1q2r2/KbRNn3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 f4 d5 b4 e5 c4 h5 Kc2 h3 Kb2 e4 b6 h2 f6 a4 c5 d3 f5 h4 b5 d4 c6 e3 c7 e2 b7 e1N g3 h3 Bd2 a3+ Ka2 Rh6 Qa4 Nc6 b8B Qd7 Bc3 d2 Bc4 d1N Nf3 Be7 f7+ Kf8 Rg1 d3 Bf6 h1R Nc3 h2 Rb1 Na5 Rb4 Nb7 Ka1 Ne3 Nd1 Ra6 Bd5 Rc6 Ba2 Rg6 Rf1 Nh6 Rg1 Qe8 Rf1 Be6 c8B Qd7 Bc7 Rg1 Bd8 h1Q Bc7 Qg2 Bd8 Bc5 Bc7 Qc2 Bfd8 Kg7 f8N Rg2 f6+ Kg8 Rg1 Rf2 f7+ Kg7 Rf1 Be7 Rh1 Rf6 Ng6 Bc4 Rg1 Rfe6 f8B+ Kg8 Bg7 Nf7 Bh8 Bd5 Nf4 Kf8 Bf6 Bc4 Qa7 Bb3 Qd4 Ba4 Bc4 Bb3 Qe4 Ba2 Qf5 Bb1 Ba2 Rc5 Qg4 Rcc6 Nc3 N1g2 Rc1 Ne1 Bb3 a2 Nd1 Nfd6 Bc4 Nf7 Qh5 Qd6 Bb3 Re4 Bh3 Re6 Qg4 Qd7 Bc4 Qa4 Bb3 N1c2+ Kb2 a1R Bc4 Ra3 Ba2 Ne1+ Ka1 Qc2 Bb2 Ra7 Bf6 Ra8
3K1bbb/1R5B/n3R1RP/R3Bk2/r1N3pP/BNRq2n1/Q1bn4/3r2nq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 g5 Kd5 a5 b4 d6 c4 d3 e4 f3 h4 a4 e5+ Kf5 h6 d2 c5 a3 e6 f2 b6 a2 b7 Ra4 e7 Na6 Kc6 d5 e8R d4 b8R d3 b5 Be6 b6 Nf6 b7 Nh7 Qe2 d1B Nf3 d2 Na3 Bc2 Rg1 d1Q Nc4 Q8d3 Nfd2 f6 Rg3 Bg8 Nb3 g4 Ba3 Ng5 Re6 Nf3 Kb6 Nd2 c6 Nf3 c7 Ng1 c8R Rh7 Rge3 Rd7 Rcc6 Rd5 Bg2 f1N Bf3 Ng3 Be4+ Kf4 Bh7 f5 Qf2+ Qf3 Qe2 Qh1 Rg6 Rd6 Ree6 Rd5 Rc5 Rd8 Rc1 a1B Ra5 Bh8 Qg2 Qe4 Qe2 Rd1 Qg2 Qd3 Qd5 Bb1 Rc3 Bc2 Qg2 Bb1 Qa2 Bc2 Rd6 Ke4 Rc6 f4 Rce6+ Be5 Kc6 f3 Kb6 f2 Kc6 Bd6 Kd7 f1N Kd8 Kf5 Ra8 Qg2 b8B Nd2 Ra7 Qh1 Rb7 Bf8+ Bbd6 Qde4 Bc7 Qd5+ Bcd6 Qb5 Bc7 Bh8 Be5 Qbd5+ Rd6 Qdf3 Rde6 Qd3+
7b/B1n1p2N/5N1n/1b1b1N2/1R2q1NK/bq1B3B/rk2PNqP/qrR4Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kf2 Kd7 d4 Kd6 b4 c5 b6 f5 b7 a5 b5 f3 Kg3 a4 b6 f2 g6 a3 g7 c4 Bh3 f1Q Nd2 c3 Nb3 c2 Be3 c1B Rb1 Na6 b8N a2 b7 a1Q Nd7 Nh6 b8N f4+ Kh4 f3 g8B g3 Nf6 f2 Bh7 g2 Bd3 Bb7 Nc6 Bg7 Ne5 Qb6 Neg4 Bc6 Rb2 Bb5 Rb1 Kc7 d6+ Kc6 d7 Nc7 d8Q Ra2 Qa8+ Kd6 d5 Ba3 Nd4 Kc5 d6 Rb8 d7 Bh8 Rb3 Qfb1 d8N f1B Rb4 Qb3 Nf7 Qc6 Bf2 Qe4 Ng5 Rb6 Ngh7 Rb7 Ngf3 g1Q Ne5 Bg2 Be3 Bf3 Bf2 Qg2 Nf5+ Qe3 Bg1 Bd5 Nf2 Qee4+ Neg4 Bdc4 Nd6 Kd4 Nf5+ Kc3 Qc8 Qbd1 Rb1 Ba4 Qb8 Qc2 Nd1+ Kd2 Ba7 Bd5 Nf2 Kc3 Rhe1 Rb3 Qb6 Bac6 Qa5+ Rb4 Rec1 Bb5 Qa4 Rbb2 Qa5+ Kb3 Qe1 Qcc4 Qh1 Qb4 Rc5 Qa4 Rbc1 Rb1 R5c4 Kb2 Rb4+ Qb3
1B2QNr1/1r2pP1B/1b2n2b/1q2R1nk/3R4/r2NbqP1/b1B5/RRR1K2r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 b4 Kf7 c4 Kg6 f4 a5 g3 d5 c5 h5 b6 e3 c6 h4 b7 h3 b5 d3 b6 h2 c7 d2+ Ke2 d4 f5+ Kh5 g6 a4 g7 a3 f6 a2 f7 Nf6 g8B Ra3 Qa4 d1R Bh7 Ne4 Nf3 Qd7 Nh4 Na6 b8R Rg8 b7 Bh6 Nd2 Qb5+ Nc4 Ng5 Ng6 Be6 c8R Nc7 Nf8 Rdd3 Rd8 Rdb3 Kd1 e2+ Ke1 d3 Bf4 Rb4 Rg1 h1R Rd4 Rb2 Rc1 a1B Ne5 Ba2 Rc8 Nce6 b8R Rb4 R8c5 Bb2 Ra1 Bc1 Bg2 Be3 Bge4 Qb6 Qe8 Qb5 Rcc1 Rbb3 Rbd8 Rb1 R4d5 Bb6 Rc5 Rb4 Rd4 d2+ Kf2 d1Q Bc2 Qdd3 Ke1 Qf3 Nd3 Rb2 Bb8 Rb1 Kd2 Rb2 Rcb1 Rbb3 Re5 e1B+ Kc1 Bf2 Kd2 Be3+ Ke1 Rb2 Nc5 Qa4 Nd3 Bc7 Rf1 Rb7 Rg1 Qf6 Ke2 Bb6 Rge1 Qb5 Rec1 Rh2+ Kd1 Qf3+ Ke1 Rh1#
nQ1B1Rb1/r2Pq1k1/6b1/BBP5/b2R1pKN/3N1rB1/1Bn2bqn/2Rn4 w - - 0 1 illegal: No proof kernel
2B1NB2/1bRpRP2/1b1QPN2/3R1nN1/2N1r2r/2N1b1q1/Kn2b3/qr1r1k2 w - - 0 1 illegal: No possible last move
q5K1/2Pb1Bp1/1RB2NB1/rn1q4/2N2rP1/2kbBB2/3b1nrR/R1b1r2Q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 fxe5 c5 dxc5 h4 Qd3 Ra7 Qh3 Ra8 Qg3 hxg3 Kd2 Ke7 Kd3 Ke6 Kd4 b5 a4 d5 e4 f5 c4 f4 h4 g2 h5 b3 c6 b4 h6 b2 c7 f3 a5 b3 a6 f2 c5 Bd6 a7 Bf8 c6 Nf6 h7 Qd7 Be2 f1R Nf3 g1B+ Be3 Ba3 Nc3 b1R Nd2 b2 Nc4 Rbe1 Rh2 b1B Bf3 Bc1 Kc5 d4 Nd5 Re8 h8Q Qd8 Qh4 Bd7 c8R d3 c7 Nc6 Rb8 d2 Rb6 d1Q Qh8 Rc8 a8B Bd3 Qh3 Re2 Qg2 Rfe1 Qh1 Rf8 Bb7 Rg2 Ba8 Ne8 Nf6 Nd6 Bb7 Na7 Bc6 Ra8 Kd4 Kf7 Kd5 Nab5 e6+ Ke7 e5 Ra5 Nh7 Rf4 Nf6 Kf8 e7+ Kf7 e8B+ Ke7 e6 Qa8 Bf2 Ne4 Bg6 Qb3 Bd4 Bge3 Bf7 Bed2 Be3 Nf2 Ke5 Re4+ Kf5 Qa2 Kg6 Qb3 Kh7 Rf4+ Bg6 Qd1 Ne5 Kd6 e7 Qb3 e8B Qd5 Nc4+ Ke6 Nd6 Ke5 Bf7 Rf5 Bf4+ Kd4 Nc4 Kc3 Be3 Qa6 Kh8 Rf4 Kg8 Qa8+
Nn5r/p2qn1Rq/2NQ1Prk/B2B1B2/3PN1bN/q6N/6RK/b1bb2q1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg7 Kf2 c5 Kg2 e5 b4 h5 d6 h3+ Kh2 c4 b6 e3 f5 e2 f6+ Kg6 g5 e1Q b5 h4 d7 c3 b7 e4 b6 c2 Nc3 e3 Ra2 e2 Ne4 Rh7 Nf3 Qe7 d8N Bd7 Nf7 Qc5 Rg1 Qa3 d3 Rh6 Bd2 c1B Ba5 Kh5 g6 Ne7 g7 Qd2 g8B Bg4 N7g5 Rg6 Bd5 e1Q+ Bg2 Kh6 Rb2 Nbc6 b8N Qef2 Nd7 Nb8 b7 Qd4 Kh1 h2 Nb6 Q2f2 Be6 Qd7 Nh3 Qfd4 Ra2 Bb2 Bf5 Ba1 Qb3 Qf2 d4 Qf1 Qe6 Qfc1 Bf1 Qg5 Kg2 h1B+ Kh2 Qge3 Bc4 Qec1 Ne1 Bhf3 Rag2 Bd1 Qd6 Bg7 Bd5 Qce3 Nhg5 h3 Nef3 Qec1 Nh4 Qcc7 Kh1 h2 Nh3 Kh7 Ba2 Bh6 Bb3 Bc1 Bd5 Na6 b8N Kh6 Nc6 Rh8 Na8 Nb8 Rf2 Qa4 Kg2 h1Q+ Kg3 Qb7 Rgg2 Qe1 Kh2 Qb1 Rb2 Qa3 Rb7 Qbd3 Rc7 Qc2 Rc8 Qcd3 Rg8 Qb1 Rg7 Qbb7 Nc3 Qg1+ Kg3 Qe8 Rf7 Qg8 Rg7 Qc5 Ne4 Qd7 Nb4 Qh7 Nc6 Qe1+ Kh2 Qa3 Bfe6 Qf2 Bf5 Qg1+
1n1NB3/1B1Rqn2/R1rBQp2/n1r1P3/2n5/1B1k4/Bb1N1P2/1rq1KRqr w - - 0 1 illegal: No possible last move, all moves rejected
3bq2B/3bp1BR/3B3Q/2K1BP2/1NbR1Rqr/7b/r1qrPN2/1Bkn2q1 w - - 0 1 illegal: No proof kernel
BB2NR2/8/1qN3N1/4Brr1/kpb2qPQ/P1n2qp1/NKnR4/bN2r1b1 w - - 0 1 illegal: No possible last move
1r2r1bk/qn2N1N1/NRN4b/1bB2q2/PBn3pp/8/2K3NP/qR1B1Qn1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 f5 c3 bxc3 gxf5 Ra5 Bf4 Ra3 Bc1 Ra8 f4 Kf7 e4 g5 a4 Kg7 e6 d5 e7 c5 e5 b5 e6 h5 Ne2 c2 Kd2 d4 Bg2 b4 Bf1 g4 Nec3 h4 Nb5 b3 N1a3 b2 Na7 b1Q Nc4 d3 Ba3 c1N Be2 Qdb6 Ne3 c4 Bb4 Nc6 Qf1 Nh6 Ng2 Ne5 Nc6 Bd7 Bd1 Rb8 e8N+ Kh7 f6 Ne2 f7 Nf5 e7 Nd6 f5 Ng1 f6 Nb7 Ra2 Qa7 Rb2 Bh6+ Kc3 d2 f8N+ Kg8 Ng6 Qf5 f7+ Kh7 Ng7 Rhe8 f8B Kg8 N6f4 Kh8 Nd5 Be6 Rb1 Bg8 Kb2 c3+ Kb3 Red8 e8N c2 Bfc5 c1Q Nc7 Nc4 Na6 Rf8 Nde7 Rfe8 Bc2 d1B Rb2 Bf3 Bd1 Qa1 Kc3 Qf8 Kc2 Qf5+ Qd3 Qf4 Bd2 Be2 Rb6 Nb2 Bdb4 Nf3 Qb5 Bec4 Be2 Qf8 Rf1 Ng1 Rb1 Qf6 Bd1 Qf5+ Kc3 Bd3 Qc4 Be2 Qf4 Bb5 Qf1 Nc4+ Kb3 Qc8 Kc2 Qf5+
1Nk2n1N/5NRq/r2b4/1Q2PbR1/1p1rqp1N/Bnrq1B2/K2Pb3/3RN3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 Kd7 e4 b5 h4 g5 d6 f5 a5 c5 a6 f3 a7 b3 h6 g4 h5 b4 h7 g3 e5 b2 h6 g2 Qa4+ Nc6 Kd1 f2 Kc2 f4 Kb3 c4+ Ka2 c3 Na3 c2 Nf3 g1Q Rh5 Qg2 Be2 f1B Qb5 Qh2 Nh4 Ne7 Rg5 Ng6 Bf3 Be2 Rb1 Rg8 h8N Be7 h7 Nf8 Nf7 Qh3 Qb6 Na5 h8N Nb3 Qa6 Qc7 Qb5+ Qc6 Rg7 Qf5 Rg5 Qh7 Ra1 Rg6 Rb1 Rb8 a8R Rb6 Ra1 Ra6 Rb8 b1R Bb2 c1Q Rb6 Qc4 Rb7+ Ke6 d7 Q6e4 Rc7 Bd6 Bc1 Ke7 d8N+ Bd7 Rb7 Qcd3 Nc6+ Ke8 Bb2 Rc1 Nb8 Rc3 Rd1 Rg8 Qc4 Bf5 Qb5+ Rac6 Rd7 Rb6 Nc2 Ra6+ Ba3 Rg6 Nd8 Rg7 Ra7+ Rd7 Ne1 Ke7 Ndf7 Ke8 Nh6 Kd8 N6f7+ Kc8 Nh6 Rd8 Rag7 Be7 N6f7 Rd4 Bh5 Bc5 Bf3 Bd6
6NR/nK1BN2R/2b1b1Q1/2pp1q2/4N1n1/nrB1BB1q/qbk1PP2/r1B5 w - - 0 1 illegal: No proof kernel
2rBK3/2r1B1BQ/2N1Pb2/N6q/q1R5/1n1qr1Np/kbpBB2P/3bR2n w - - 0 1 legal: proof: d4 b5 c4 e5 g4 f5 a4 exd4 axb5 d5 cxd5 fxg4 Kd2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 h5 e4+ d3 f4 a5 f5 c5 b6 g5 b7 h4 b5 g3 b6 g4 d6 a4 d7 g2 Ke6 h3 Kf7 a3 f6 a2 e5 g3 Bf4 Ne7 Bd2 Ra7 Bg5 Bg7 Qd2 Kb3 Qa5 d2 Be3 d1Q Nc3 c4 Nge2 g1R Nb1 g2 Na3 c3 Rc1 a1Q Bd2 Nbc6 b8B Nf5 b7 Ng3 Qc7 Nd4 Nc4 Qa4 Na5+ Ka2 e6 Nb3 Qd6 Re8 Qd3 Bh8 Qh7 c2 Bd6 Rg8 b8N Ba6 Nbc6 Rc7 Rb1 Bd3 Ba3 Bf5 Be7 Bg4 Bdb4 Qd3 Bd2 Qa8 Rd1 Rgc8 d8B Qb8 Ke8 Qbb5 f7 Bf6 f8B Qh5+ Qg6 Bf3 Bg7 Bb2 Nf4 Bg4 Be2 Re1 Rb1 g1B Rd1 Qg5 Qh7 Bgd4 Nh5 Bf6 Rg1 Nh1 Ng3 Qe5 Rf1 Qg5 Rf4 Qe5 Rc4 Qc5 Bf3 Re3 Re1 Qcb5 Be2 Qbf5 Bf1 Bd1 Be2 Qh5+
2RN4/B3qKnb/kp3QP1/P1q3b1/p1b2N1n/3r2Nr/1N3N1q/1Br2RB1 w - - 0 1 illegal: No possible last move
2n1N1Q1/1B1rN3/P4Bbb/2q1R3/2R2B1P/1BpRb2k/q1prB3/2n1Krq1 w - - 0 1 illegal: No possible last move, all moves rejected
Br2k3/BBb1rq1P/2qnb2p/1p5P/1nNR1B2/3R3n/rbQRK3/3N1B2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g4 h6 d6 Qe7 g5 Qd8 d7+ Ke7 Bb2 Ke6 Nh3 Qf6 Bc1 Ke7 Ng1 Qf5 Nf3 Qc2 Ng1 Qh7 g6 Ra4 gxh7 Ra8 d8R f5 a4 c5 h4 g5 d4 b5 e4 g4 h5 b3 d5 b2 a5 g3 e5 f3 a6 f4 e6 g2 a7 f2+ Kd2 c4 Qb3 c3+ Kd3 c2 Qc4 f3 Ke3 Na6 Na3 b1R Rh3 Nb4 Ra2 Nf6 Ne2 g1N Nc3 Ne8 Nd1 Nd6 Qb3 Rb8 a8B Ra1 Nc4 Bg7 Bd2 c1B Qc2 Bgb2 Rh4 Nh3 Rd4 Rb7 Ra3 Rd7 Rad3 Ra2 Bb7 Rc7 Rd7+ Ke8 e7 Ne4 Rd6 Be6 Rd7 Nd6 Ba8 Kf7 e8B+ Kf8 Rd8 Re7 Bec6+ Kf7 Rd7 Rb8 Bcb7 Ke8 Rc7 Bc3 Rd7 B1b2 Bc1 Nc6 Rd2 Ba5 R4d3 Bc7 Rd4 Nc8 d6 Nb4 Rd8+ Kf7 d7 Nd6 Bg2 f1Q R2d3 Qh1 Bf1 f2 Ke2 Qc6 Bf4 Ra3 Re8 Qc5 d8B Qc6 Rg8 Ra2 Rg2 Ba5 Bb6 Ke8 Ba7 Bb6 Rd2 Bc7 Rg3 Rc8 Rgd3 Rb8 Bg2 f1Q+ Ke3 Qh1 Bf1 Qhd5 Ke2 Qf5 Ke1 Qg6 Ke2 Qf7
1Q2R3/1BbRP1n1/rp1RB1q1/k2N1R1q/b1qp2rB/R2P4/Nnn4r/6K1 w - - 0 1 illegal: No possible last move, all moves rejected
1R2BR1q/2PqkN2/Bpn1p2R/rP6/K2b4/2B3q1/b3RQn1/brR2n1N w - - 0 1 illegal: No possible last move
3K4/1qPP1RRr/B2RR1N1/2Q1Rn2/2pb2BB/4pbb1/2N2qqk/1r2r1n1 w - - 0 1 illegal: No proof kernel
B2nb1K1/pB1n1p1B/3r1q1b/Bn1N2k1/2b2R2/BR3P2/Nq1P1Q2/rR2r3 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 e5 Ke3 Ke7 c4 Kf6 g4 h5 c6 h3 c5 h2 b6 h4 b7 h3 c7 Bd6 c6 Qe7 g5+ Kf5 g6 Be6 c8B Bc7 g7 Nd7 b8B Bc4 Ra3 Kg5 Rb3 Qf6 Nc3 Ne7 g8B Bd8 c7 Nc6 Ba3 Be7 Nce2 Bf8 Bb7 Nd8 c8R Bh6 Bc7 Rb8 Ba8 Rb6 Nc3 Rd6 Bg2 Rh7 Nge2 Rg7 Re1 h1B Rf1 h2 Nc1 Rg6 Rcb8 Ra6 Be7 Ra1 Bf3 Bg2 Qe2 h1Q N1a2 Bh3 Rfb1 Qc1 Ba5 Qb2 Ba3 Bhe6 R3b4 Bed5 Bh7 Bc6 Nd5 Ba4 Bg4 Bc6 f3 Ba4 Kf2 e3+ Kg3 e4 Qf2 e2 Bf5 e3 Be4 e1N Rb3 e2 R8b4 Kh5+ Kh3 Nc2 Bb7 Bg5 Ba8 Kh6 Kg4 Nd4 Bb7 Nb5 Ba8 Qfd4 Kf5 e1R Bb7 Kh5 Ba8 Bh6 Bb7 Ne5 Ba8 Rd6 Bb7 Ne6 Kf6 Nd7+ Ke7 Qf6+ Ke8 Ne5 Ba8 Nd8 Bb7 Be3 Kf8 Nd7+ Kg8 Bh6 Bc2 Be2 Rf4 Kg5 Bce4 Bf1 Ba8 Bc4 Ndc3 Nc7 Beb7 Bc6 Nd5 Nb5 Bd3 Nc5 Bc2 Be8 Bh7 Nd7
n1nn2n1/b2N2B1/5rrR/1RNN1pQP/1K4B1/p3n1Bb/N4rqP/1k5N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Ke6 e4 Ke5 c4 d5 c5 g5 b6 a5 c6 a4 b5 a3 b7 f3 c7 f2 b6 g4 Ne2 d3 Kc3 g3 Rg1 d4+ Kc4 d2 Bh3 f1N Qe1 d1N Rh1 d3 Rg1 d2 Bb2+ Nc3 Qc1 d1N Bg4 g2 Ng3 Qg5 Nh1 Nc6 b8N Nd8 b7 Rh6 Na6 Rf6 b8B Ng3 Nc5 Nf5 Kb4 Kd4 e5 Nd6 e6 Ne3 e7 Ra6 e8N Rf2 Rf1 g1R Nf6 Qd5 Nfd7 Qg2 Ra2 f6 Ba1 Be7 Rb2 Na4 Re1 Nb6 Nc3 Na8 Na2 Rc6 Nb6 Be6 c8N Bf8 Ne7 Nc8 Bg3 Rgf1 Nb7 Kd3 Nd7 Bh6 Nd5 Bg7 Bd1 Bh3 Bg4 f5 Ree2 Rg1 Rb1 Bh6 Bg7 Rf6 Rc2 Bf4 Rc6 Bb8 Rb2 Ba7 Rd6 Nd1 Qg5 Ne3 Rb3+ Kc2 Nbc5 Rf7 Rh6 Rf6 Rc3+ Kb1 Rc4 Re6 Re4 Rg6 Re6 Re1 Rb6 Rc1 Rb5 Rd1 N5f6 Rd6 Nd5 Rdf6
3Nn3/R7/1bQr2b1/Pp1P1b1K/RB3B1b/B1r1B3/1q1pr1k1/1B1N1Nbn w - - 0 1 illegal: No proof kernel
2nR1nbR/5nKB/p1N2r2/Np1N2b1/N6q/kP1P4/1nn3Br/1Q2bBN1 w - - 0 1 illegal: No proof kernel
N3k3/1nqnb2P/1nr4N/1nN5/4P1r1/1Qn1pKb1/R1b1RR1p/N1N1BB2 w - - 0 1 illegal: No proof kernel
N2R2r1/p5B1/Q1N1qnb1/3NNrb1/B3R1b1/Pp2nPbb/3Rr3/3KN2k w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 g4 Kd7 d4 b5 g5 h5 g6 e5 a3 h3 c6+ Kd6 g7 h4 c7 h2 Qa4 b4 Bd3 b3 Ne2 h3 Rg1 h1B Nf4 e3 Bf5 e2 Ng6 h2 Bg4 e4 Ra2 Nh6 g8N Qf6 Bb2 Be7 Bd7 Nf5 Rg4 Qe6 Ne5 Bf3 Nd2 h1B Nf6 Rf8 Rh4 Bfg2 Ndf3 Bh3 Bb5 Nd7 Qa6+ Nb6 Bc6 Ne3 Ba4 Rg8 Kd2 e1R Ba1 Rf1 Ne1 Bd7 Kc1 Rae8 Rd2 Bf3 Bb2 Bh5 Ba1 Bg6 f3 Rf2 Rf4 Re2 Rg4 Ref8 Rh4 Nf1 Kd1 e3 Re4 Rf7 Nh7 Bg5 Nf6 Qe7 Bc3 Bdg4 Bb2 Qe6 c8N+ Kc7 Ba1 Nd7 Nb6 Kd6 Na8+ Ke7 Nh5 Rf5 Nf4 Kf6 d6 Rh2 d5 e2+ Kc1 Ne3 Bc3 Nf8 d7 Nh7 d8R Rf2 Neg2 e1B d6 Re2 d7 Bg3 Bd4 Bh6 Ba1 Kg5 Nd5 Nf6 Ne1 Kh4 Bb2 Bg5 Bc3 Bf1 Bb2 Kh3 Bd4 Ng2 Kd1 Kh2 Rc8 Nh7 d8N Nf4 Ndc6 Bfh3 Nc4 Ng2 Bg7 Nf6 Rd8 Kh1 N4e5 Ne3+
b5B1/1B1b1Bb1/5R2/K2b1PBp/P1Q1n1n1/1N1N4/n1RrRrpB/2r2k1q w - - 0 1 illegal: No proof kernel
1bq2Kbk/nQR1rR2/3bR2B/rb1NPp1P/3R3R/3r3B/n3Nnp1/7N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 Kf7 d4 g5 e5 Kg7 d6 c4 h5 c3 d5 f3 Kg3 c2 b6 f2 b7 a4 d7 a3 b5 a2 d6 Ra7 b6 Na6 b8R Qf6 d8R Qf7 b7 Qe8 d7 Nc7 Qd5 Nh6 Bh3 f1B Nd2 Nb5 Ne2 Bd6 Ne4 Ra3+ Be3 c1N Nf2 Rh7 Qg2 Qe6 Re8 Rd3 d8R Na7 Qf3 Qg8 Re6 Kh8 Qg2 Bd7 Rbc8 Bb5 b8N Re7 Nd7 Bb8 Rb1 a1R Qb7 Ra5 Nb6 Na2 Rd4 Qd8 Rcc1 Qc8 Rc7 Bg2 Rh2 Bd5 Nh1 Bb3 Nd5 B3c4 Kf2 g3+ Kf3 g4+ Kf4 g2 Kg5 g1B Kg6 g3 Bc1 Ng4 Bh6 g2 Rb4 Re8 Kf7 Be3 Rb2 Nf2 Rc2 Bg5 Rb2 Bd8 Rc2 Re7+ Kf8 Be8 Rb2 Bf7 Rbb6 Bg8 Rf6 Ba6 Rbe6 Bb5 Rf7 Be8 Rcc4 Bdc7 Rc2 Bd6 Rc7 Ra6 Bg4 Raa3 Rh4 Ra5 Bh3 Bb5+
2R1nBRn/1rQ1bbrB/bq1P4/N2p4/r1p1rP2/8/K1BN3n/NN2k2N w - - 0 1 illegal: No proof kernel
K4N1b/n1BBRbp1/3PB2N/3R1Nbp/2nq1r1n/3kPQ1r/1B1n4/r2B4 w - - 0 1 illegal: Other
2R3rq/QB1BnPNK/3B2rb/3bn1kN/1B1ppnB1/1N1P3R/2b4r/2r5 w - - 0 1 illegal: No possible last move
1rB4B/1P5n/1NB2Qbp/kBp2nNn/3R1K2/2nR1B2/5b1P/rr1N1q1b w - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 g5 a4 d5 axb5 dxc4 f4 gxf4 Kf2 f5 Kf3 a5 g4 c5 b4 c3 e4 h6 e6 a4 e5 a3 b6 a2 b7 c2 b5 Bd6 b6 Nf6 g5 Nh7 g6 Nd7 b8N Ndf6 e7 Nh5 Nd7 Rb8 Bb2 c1N g7 Ne2 g8B Nc3 Bh3 Bb7+ Bd5 Rg8 Qf1 Bc6 Ne2 Rg1 b7 Qa5 Qf2 Qa6 Ng3 Qf1 Ne4 Bc7 Nb6 Bd8 Na4 Kd7 e8B+ Kc7 e6 Bh4 e7 Bg3 Ng5 Bh4 Nd2 Bg3 Rb1 a1R Rd1 Rb1 Ba1 Bh4 Nb2 Kb6 Bd7 Ka5 e8B Bg3 Be4 Bd5 Bc8 Bf7 Bg4 Bg6 Bb5 Qc4 Ba6 Nd5 Re1 Rd1 Na4 Qc1 Bf6 Nc3 Re3 Rge1 Kg2 f3+ Kh3 f4 Nf1 Qb1 Bc6 Qf5 Be5 Ra1 Bab5 Reb1 Nb6 Qf7 Re4 Qf6 Qd4 f2 Ne3 f3 Rd1 f1N Rd3 f2 Nd1 Ne3 Be2 Qf3 Bh8 Nf5 Qf6 Qf4 Red4 f1B+ Bg2 Qf2 Kg4 Bh4 Be4 Bg2 B2f3 Qf1 Bd5 Bh1 Bdc6 Nhg7 Kf4 Be1 Rc4 Bf2 Rcd4 Nh5+
1n4K1/1p1Nq1P1/2NPr1B1/2R2r1b/1Br1pN1N/B3Q1b1/2R1b1nk/1n2b1N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 h5 g4 e5 f4 c5 a4 b3 d4 h3 a5 h4 g5 c4 a6 h2 a7 b2 f6 h3 f7 c3 f5 c2 g6 Rh5 f6 Bg4 g7 Nd7 Qd3 Qc8 Ra5 Rh6 Nd2 b1N Qe3 Qe8 Ndf3 Ne7 Rc5 Ng6 Ba3 c1B Nh4 Nf4 Bd3 Bh5 Kf5 Rc8 a8N Bd2 Nb6 Nb8 Nd7 Ng2 Kg5 Be7 f8B Be1 Bg6 e4 Kf5 Bg3 f7 Rc7 Nf6 Be2 Nh5 Qd8 Nf4 Be1 Bh7 Re6 Bg6 Qd7 Ngf3 Bg3 Rhc1 h1R R1c2 Rf1 Ng1 h2 Bb4 h1B Ba3 Qe8 Bb4 Kd7 d6 Bd8 d5 Qe7 Ba3 Rc6 Bb4 Ba5 Ba3 Bae1 Bb4 Kc8 d7+ Kc7 d8N Kd6 Ba3 Rc8 Nc6 Rf3 Kg4 Rc7 Kh5 Rf1+ Kh6 Rc8 Na7 Ke5 Kh7 Rcc6 Kg8 Rc7 Ra5 Rc4 Rc5 Rf3 Nfh3 Rf5 Nc6+ Kf6 Nf4 Kg5 Bb4 Kg4 Ba3 Qc7 Bd6 Qe7 f8N Bgf2 Qd4 Kg3 Qe3+ Kh2 Nd7 Bh5 Ra5 Bg3 Bdb4 Bg4 d6 Be2 Qc1 Ne3 Rb5 Bf3 Rc5 Ng2 Qe3 Bh5
7B/1nB1RN1N/Bb2r1kq/b3b2p/P4R2/BrR1p2P/2b2nBQ/q2b3K w - - 0 1 legal: proof: e4 d5 f4 a5 c3 g5 b4 axb4 fxg5 bxc3 exd5 Ra6 Qc2 Ra5 Qd1 Ra8 Kf2 b5 a4 c5 d4 h5 g4 e5 Kg2 f5 h3 Kf7 d6 b4 d7 c4 d5 b3 d6 e4 Qf3 c2 Qg3 f4 Kh2 c3 Ra3 f3 Bg2 f2 Nf3 f1Q Nbd2 b2 Nc4 Qb6 d8B b1B d7 e3 Nd6+ Kg6 Nf7 Na6 Bc7 Nh6 d8B Nc5 Bf6 Rb8 Bd4 Qe1 Rf1 Nb7 Kh1 Bc5 Qh2 Re8 Bh8 Re6 Rb3 Qd1 Ba3 Qd4 Rf2 c1B Rf1 c2 Rc3 Bb2 Rf2 c1B Rf1 Kh7 g6+ Kg8 g5 Bd2 g7 Kh7 g8R Bc2 Rf2 Ng4 Re8 Kg6 Re7 Bd7 Rf1 Bb5 Rf2 Be2 Rf1 Bed1 Rf2 Kf5 g6 Qe5 g7 Kg6 g8B Ba1 Rd3 Ba5 N3g5 Qeb2 Rf4 Nf2+ Kg1 Qb1 Nh7 Be5 Rc3 Qa1 Nf6 Ne4 Kh1 Qd6 Nh7 Bcb6 Rd7 Qf8 Re7 Qh6 Nd8 Rd6 Bc4 Re6 Nf7 Nf2+ Kg1 Rd8 Ba6 Rd4 Nfg5 Rb4 Nf7 Ne4 Kh1 Rb2 Kg1 Rb3 Kh1 Nf2+
nRnRK1RN/1nq2B2/1bnQ2r1/Pn2rb1p/3R4/R3p1qP/N3N2k/4B3 w - - 0 1 legal: proof: e4 d5 f4 a5 c3 g5 b4 axb4 fxg5 bxc3 exd5 Ra6 Qc2 Ra5 Qd1 Ra8 Kf2 Kd7 Kg3 Kd6 Kh4 Ke5 Kh5 Kf4 g4 c5 a4 e5 d6 b5 g6 f5 d7 b4 a5 b3 g5 c2 h3 Kg3 d4 c4 g7 e4 g6 e3 d5 c3 d6 f4 Qe2 b2 Qd1 f3 Qd5 f2 Qa2 Ne7 g8N Nbc6 g7 Qc7 d8R Bf5 d7 Nc8 Nd2 b1N Qb3 Ra6 Qb6 Bc5 Nh6 Na3 Nb3 Nb5 Bc4 f1N Ra3 Re8 Bf7 Re5 Bd2 c1N Ne2+ Kg2 Rf8 c2 d8R Nd3 Be1 Nd2 Nbc1 Nc4 Na2 c1Q Kg5 Bd4 Kf6 Nc5 Qb8 Nb7 g8R+ Bg6 Rg1+ Kh2 Rg4 Bb6 Rgd4 Bf5 Rfe8 Qd6+ Kg7 Qg6+ Kf8 Qg3 Qd6 Qc2 Bg6 Qc1 Nf7 h5 Nh8 Nb2 Bf7 Na4 Qb4 Qc5+ Re7 Qd6 Ke8 Qc7 Re6 Bc5 Qd2 Nab6 Re7 Na8 Qb4 Bb6 Qd6 Rc5 Ree4 Rd5 Rb4 Rc5 Red4 Re5+ Qe6 Bc5 Rd2 Nba7 Rbb2 Nbd6+ Kf8 Nb8 Rb7 Nab5 Rd4 Rc6 Qg6 Bb6 Qh6 Ne4 Qe6 Nc5 Ke8 Rd6 Qe7 Nc6 Rb8 Rg6 Qe6 Nb7 Qe7 Rc5 Qd6 Re5+
b1R2q2/R4qB1/1kpR3Q/4b3/r1Rp1rK1/N1PB3P/1nNqq3/2RBq2n w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 g4 hxg4 d4 e5 dxe5 fxe4 Ke2 d5 f4 Kd7 b4 g5 b6 Kc6 e6 a5 f5 e3 f6 a4 e7 g3 Kf3 e2 e8B+ Nd7 b7 e1Q b8R d4 h3 a3 c3 a2 f7 g2 Qe2 g4+ Kf4 g3 Qd3 Ra4 Bd2 Qe2 Rb5 Bg7 f8R Nh6 Rg5 Kb6 b5 c6 Na3 Nf5 Rg6 Bb7 Rd6 Ne5 Qe3 Ba8 Bh5 Nc4 Nf3 g1Q Ne1 g2 Nec2 Qgf2+ Bf3 Rh7 Kg4 Ng3 Qh6 g1Q Rg8 Qb8 Rc8 Qgg2 Bc1 Qd2 Bd1 Nb2 Bd3 Qf7 Rf1 Be5 Re1 Kc5 b6 Qgf2 b7 Nh1 Rf1 Kb6 Re1 Rh8 Rf1 Rf8 Rg1 Qa7 b8R+ Qab7 Rf1 Qe8 Rg1 Rf3 Rf1 Qde2 Bg5 Qf7 Bf6 Qf8 Bg7 Qfe1 Rc1 a1Q Rg1 Qa2 Rf1 Ka7 Rf2 Qbb3 Rb4 Qbf7 Rc4 Q2d2 Re2 Kb6 Re3 Bf6 Re7 Be5 Rc5 Qac4 Ra7 Qa6 Bg6 Qaf1 Rc4 Qfe2 Bd3 Rf4+
N1q3k1/5nP1/r2N1pK1/4nN2/1pn4N/bBnbnP2/1RR5/QRrq2BN w - - 0 1 legal: proof: d4 b5 h4 g5 a4 e5 dxe5 gxh4 axb5 c5 b4 cxb4 Kd2 a5 Ke3 d5 Kf4 h5 e4 f6 c4 Kf7 g4 d4 b6 a4 c5 d3 e6+ Kg7 Kf5 h3 g5 a3 g6 h2 e5 a2 b7 h4 c6 h3 c7 d2 Bc4 Ra5 Ne2 Nc6 b8N Qd4 Na6 Qd7 Bb3 Ra3 Ng3 Na5 Qe1 d1Q Be3 Nc4 Nd2 Bd6 Rc1 a1N Rb1 Nc2 Nf3 Ra1 Rb2 Rc1 Rg1 h1N Nh4 h2 f3 Nf2 Nh1 Nd3 Bb6 Bb7 c8R Bb8 Nc7 Ba6 Na8 Nh6+ Ke4 N2e3 e7 Qc7 e8N+ Kg8 e6 Nf7 e7 Nde5 g7 Qcd7 Rc6 Qc8 Nd6 Rh5 e8N Rg5 Ng3 h1N Ndf5 Nf2+ Kf4 Bd6 Nh1 Ne4 Bd4 Bc5 Ned6 Nc3 Qf1 Na5 Qe1 Bd3 Rf1 Nac4 Rc7 Nc2 Bg1 Bd4 Rc6 N2e3 Rc7 Ra1 Rc5 Ra6 Rc6 Qd2 Qa1 Rg2 Rc1 Qd1 Rcb1 Rc2 Rc5 Rc1 Rc7 Nc2 Rc5 Nd7 Kg4 N2e3+ Kh5 Be5 Kg6 Bf4 Ra5 Bg5 Raa2 Nde5+ Kh5 Bh6 Rc2 Bf4 Rab2 Nf1 Re2 Rc2 Ra2 Bc1 Rg2 Ba3 Rab2 Rc1 Rgc2 Ng4 Kg6 Nfe3 Rh2 Qc7 Rhd2 Qc8 Rdc2 Nge5+
1Rbn4/1qR2P2/b1R1r1n1/3B2Q1/2p1PBbN/Nk2p3/3RR2b/rBqKb3 w - - 0 1 illegal: No proof kernel
1Nq1kNrR/R2rpn1B/1n1q2R1/2P5/6bb/Rn1Q1Kp1/B4PR1/n1n3B1 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Ke2 a5 h4 d5 b4 g5 c4 d4 c6 g3 c5 e3 b6 d3+ Kf3 a4 b5 e2 h5 e1Q b7 d2 h6 a3 c7 g2 h7 a2 b6 Nh6 Nh3 Nc6 b8R Ra6 b7 Qd7 Ra8 Qde6 b8R Qc4 Ra7 Qd4 Rg1 Nf7 Nc3 Qe6 Ne2 Rg8 h8R Bh6 Nhf4 Na5 Rb6 Nb3 Ng6 Qdd6 Nd4 Bd7 Qc2 d1N c8B Nc3 Bd3 Nd5 Bf4 Bg7 Bb7 Bf6 Nf8 Ra4 Rba6 Nb6 Nc6 Rd4 Nb8 Bc8 Bd5 g4+ Kg3 Bd7 Bh7 Rd1 Be5 Bh4+ Kf4 Bc8 Qd3 Qed7 Ra3 Rd2 Rab1 a1N Ke3 Rd1 Bh2 g3 Kf3 Qd8 Bc4 Bd7 Rb2 Qc8 Re2 Bh3 Re6 Bf5 Rg6 Bg4+ Ke4 Na5 Ba2 N5b3 Rf1 g1N Ke3 Ne2 Rg1 Bh5 Rg2 Nec1 Bg1 Rd2 Qf5 Rd5 Qd3 Bg4 Ke4 Qf6 Ke3 Rd7 Ke4 Qd6 Ke3 Bh3 Kf3 Bg4+
Rn4BR/3P1b2/1rB3pb/Bp5R/1bBQn1P1/NN1K3b/1B1q1qb1/5kr1 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 exf4 h5 g6 h6 Qg5 Nc3 Qf6 Nb1 Qg7 hxg7 Ra7 Qb3 Ra4 Qd1 Ra8 d4 Ke7 Kd2 Kd6 g4 b5 e4 Ra6 a4 c5 a5 f5 Nc3 h5 Nb1 h4 Qb3 f3 Qa4 h3 Bd3 h2 Ke3 c4 Ba3 c3 Bc1 f2 Bd2 f1B Qd1 c2 Bc3 b3 Bc4 b2 Ne2 Be6 Nc1 Rb6 a6 Bf7 a7 Nf6 Na3 b1Q Nb3 Qa2 Rc1 Rh5 a8R f4+ Kd2 f3 g8B f2 e5+ Kd7 e6+ Kd6 e7 Ne4+ Ke3 Rh7 Rb1 c1B+ Qd2 Qb2 e8B Rh5 Bc6 Rh8 Rg1 h1B Ba5 Bf3 Rh1 Rh2 Ra1 Rg2 Rh8 Qc2 Ra2 Rg1 Bc3 Qd1 Rc2 Bh1 Bb2 Be7 Rc3 Qc2 Rd3 Bh3 Ke2 B1g2 Re3 Nf6 Re5 Ne4 Reh5 f1Q+ Ke3 Qf5 Ke2 Qc3 Qe3 Qe1+ Kd3 Bf8 Qf2 Bch6 Qe3 Ke7 d6+ Kf6 d5+ Qc3+ Ke2 Ke5 Qd3 Kf4 Qd4 Qc1 Kd3 Kg3 d7 Bc5 d6 Bb4 d8B Ra6 Qe5+ Kf2 d7 Kf1 Qd4 Qf2 Ba5 Rb6 Rh7 Qce1 Rh8 Qed2+
1N6/1RpP1q2/6bp/5BrB/3rqbN1/n1kb3P/B1b1nNQ1/KR1B1Bb1 w - - 0 1 legal: proof: c4 a5 f4 d5 b4 dxc4 bxa5 e5 Bb2 Bh3 Bd4 Bc8 fxe5 g6 Be3 g5 Bf4 gxf4 a4 Ke7 g4 Ke6 d4 Kd5 Kd2 f5 Kc3 b5 Kb2 b4 e4+ Ke6 d5+ Kd7 a6 h6 h3 b3 g5 f3 d6 Ke6 a7 f4 a5 f2 d7 f3 g6 Bg7 a6 Nf6 Nd2 Nd5 Qe2 Nf4 Rb1 c3+ Ka1 c2 Rh2 Bf6 g7 Qe8 g8B+ Qf7 Rg2 c1B Bh7 Bb7 Bf5+ Ke7 Rg8 Nc6 Rb8 Nd4 e6 Kd6 e7 Kc5 e8N Kb4 e5 Rg8 e6 Rg5 e7 Kc3 Qe4 Bg7 Nf6 Nb5 e8B Na3 Ng4 Bd4 Qe2 Be4 Rb7 Qc4 Bh5 Bc2 Qe4 Rf8 a8B Ne2 a7 Re8 Qc6 Re4 Qd5 Bb6 Qg8 Rd4 Ne4+ Kb4 Qg6 Bf4 Qg7 Nc1 Ne2 Qc6 Bg2 f1Q Nef2 Qe4 Qg8 Rd1 Nd4 Ne2 Qg6 Kc3 Nc6 Rd4 Nb8 Bc5 Rb5 Bb6 Bd5 Bc5 a8B b2+ Ka2 Ba7 Bac6 Bc5 Rb7 Ba7 Ba4 Bb6 Rc1 b1B+ Ka1 Ba7 Ba2 Bc5 Nh1 f2 Qg7 Qg1 Rd1 f1B Nhf2 Qh2 Re1 Qg3 B4b3 Qgd3 Qg8 Qc4 Rc1 Qf7 Re1 Bd3 Bd1 Bdc2 Qg6 Ng1 Qc6 Bfd3 Bf1 Ne2 Bfe6 Qe3 Qg2 Bg6 Bf5 Bd3 Bc2 Qe4 Rc1 Bb6 Bd1+ Bbc2 Rb1 Rc4 Nh1 Bg1 Nhf2 Rd4
1bnnk2q/1P1nB1n1/Q3R1P1/RB2pn2/b2pRB2/3N4/K1r1r3/2Nq1B1B w - - 0 1 illegal: No possible last move, all moves rejected
1q6/Br1rQ2r/6K1/2rq4/1NBR1N1b/PBbNnPpb/2p4n/N2k1N1R w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 h4 e5+ Kg6 b5 a6 c5 a7 c4 d3 c3 h5 c2 f3 e3 a3 e2 h6 e1B d6 e4 h7 b4 d7 g3 Rh4 g2 Qe2 b3 Rh3 e3 Nd2 Kc3 d4 b2 d5 b1Q d6 Nf6 Rg3 Ng4 Nb3 Nh2 Rg4 Be7 Rd4 Nc6 Bd2+ Kb2 Ba5 Bg5 Bb6 Rb8 a8B Nb4 Bd5 Bgh4 Ba7 Rb7 Bg8 Qa5 d8N Bh3 d7 Nd5 Ne6 Bc3 d8N Rd7 Qe1 e2 Nf4 Ne3 Nc6 Qd5 Nb4 Rb7 Bf7 Rd8 h8N Rdd7 Qd2 e1R Bc4 Rc1 Nge2 Rh1 Ng3 g1R Qe2 Rd1 Nf1 Re1 Kh7 g5 Nhg6 g4 Ne5 g3 Kg6 Rd1 Qd3 Rdc7 Qe4 Rc5 Be6 Qa2 Rc1 Qb1 Na1 Rd3 Re1 Rd1 Bb3 Kc1 Bg8 Qd8 Bgc4 Qd5 Re2 Rd2 Ned3+ Kd1 Qe7 Ng2 Re5 Ne3 Rh5 Qb2 Ba2 Qb3 Nc6 Qb6 Bab3 Qc7 Rh8 Qb8 Ncb4 Nhg4 Re8 Nf5 Nh2 Bg5 Qf6 Qe6 Re4 Bg2 Ne1 Rdd7 Ned3 Qd5 Rh8 Nfe3 Nf1 Rh4 Qe7 Rh1 Rf8 Rh2 Rf5 Rh7 Rd4 Bf6 Rh5 Bg5 Rh1 Bh3 Ba4 Nh2 Bab3 Bh4
N5nq/1kNbB1Q1/1nq3r1/1B1r3p/1q3Nbp/1P2K1Pb/3b3N/4RNBR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 a5 d4 f5 b6 c5 e5 h5 g3 f3 b7 Kc7 b3 f4 e6 c4 e7 a4 Bd2 a3 Be1 a2 Nd2 c3 Bb5 c2 Nf1 Nd7 b8N c1Q e8N+ Kb7 d6 Qe7 d5 Nb6 d7 Qb4 d8B Rh6 d6 Bg7 d7 Qc6 Na6 Bc3 Nac7 Rg6 Qd4 Ra5 Rb1 a1Q Be7 Qb2+ Bd2 Qa1 Re1 Qb2 Qg7 Qa1 Be2 Rd5 Na8 Qb2 Nec7 Qa1 Nh3 Qb2 Ng5 Qa1 Kg1 f2+ Kg2 Qb2 Kf3 Qa1 Bd3 Qb2 Ke2 f3+ Ke3 Qa1 Bb5 Qb2 Nh2 f1B Ne4 f2 Bc1 Bd3 Nd2 Bf5 Ndf1 Bg4 d8N+ Kb8 Ne8 Bcd7 Ne6 Kb7 Ne8c7 Qa1 Ba3 Qb2 Nf4 Qa1 Nd2 f1B Bc5 Bfh3 Bd4 Qf8 Be7 Qa5 Ndf1 Qb4 Qh7 Qh6 Qg7 Qh8 Ke4 Qa5 Bg1 Qb4+ Ke3 Bd2+
2n4K/2Q2n1N/7r/2qB1B1p/1bn3p1/1kqNBRRB/b3PP1R/1r1r2Bn w - - 0 1 illegal: No proof kernel
1RnQN2q/3B3R/n1n3Nr/2b2P1p/3kq3/p3b2K/Pr1b1RNR/1R3bB1 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 d4 Kf7 g4 Kf6 f4 a5 Kf2 e5 Kg2 b5 d6 h5 f5 e3 c6 a4 c7 a3 d7 e4 d5 Ke5 g5 e2 g6 e1B d6 e3 g7 e2 Nh3 b4 Nc3 b3 Be3 b2 Nb5 b1Q Nf4 Ne7 g8R Bf2 Rg7 Ba6 c8N e1B Nc7 Rh6 Rh7 h3+ Kh2 Bd3 Ng2 Na6 Qd2 Qc2 Rb1 Rb8 Bb6 Qe8 d8R Be2 Ba7 Rb2 d7 Bb5 Bc4 Qe4 Be6 Bf1 Na8 Qg4 Nc7 Nc6 Ne7 Qg7 Qd3 Qh8 Rb8 Bb6 d8R Bea5 Kg3 h2 Rd4 Bd2 Rf4 Bg1 Qd8 Bd4 Rg1 h1N+ Kh3 Ng3 Rh1 Ne4 Bd7 Nd6 Rh2 Nc8 Rf3 Bf2 Ng6+ Ke4 Bd4 Bc5 Be3 Qee5 Ne8 Kd5 Rf4 Qe4 Bd4 Bg3 Rf3 Bgf4 Bg1 Bfe3 Rf2 Kd4
2Q1R1b1/N1KNrb2/2R2qN1/1np1n1r1/1rpR1B1q/1B3R1b/P1P2R2/r3k3 w - - 0 1 illegal: No proof kernel
8/bbk1BKnr/1r1q1nb1/1pN4R/BP1bQ1pn/1RN2N2/NP4q1/B2N4 w - - 0 1 illegal: Other
k3nB1Q/2bn2R1/b1Rq2rq/pN1B2Bn/3K1P2/N4pNB/r1PB4/3n1b2 w - - 0 1 illegal: No proof kernel
bN6/4N1rk/1b1NN1qP/Rn3q2/RpKB2Bq/4Q2P/1Rr1bn1p/5qN1 w - - 0 1 illegal: No possible last move
7q/n1B1nRn1/2BP2Pk/BK1B2q1/3pp1Q1/q1rRN2b/1nrR1b1N/2B5 w - - 0 1 illegal: No proof kernel
3bBqn1/RN1bBq1B/2Pp1B2/q3KN1N/4B3/Q2Rrp2/q1k1Pn2/4rn2 w - - 0 1 illegal: No possible last move
1qrRb2n/nbk1qR2/Q1p4R/b7/1N4N1/1N5b/BpPP1rR1/2BK1R1r w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 b4 axb4 e4 e5 fxe5 dxe4 h4 Kd7 a4 g5 h6 f5 h7 b5 a5 g4 h5 f4 h6 f3 a6 e3 a7 b3 Ra5 b4 Rh4 b2 Nh3 e2 Ng5 b3 Nc3 b1B Nge4 g3 Nd5 b2 Rh2 g2 Nb4 g1R Rg2 Bb7 e6+ Kc8 e7 Ba2 e8N Ne7 Re5 Bf7 N8f6 Be8 Rf5 Rh1 Ng4 Ng6 Nc5 Nc6 Rf7 Rg8 Nb3 Nh8 Na6 Rb8 a8R Bb4 Ra7 Ba5 Nb4 Rf8 Ra6 Ng6 h8R Na7 Raf6 c6 h7 Qd6 Rg8 Nh8 Rgg6 Qe7 Rh6 Kc7 Rf4 Ng6 h8R Rc8 Rg7 Rf5 Rf8 Nh8 Rgf7 Kb6 Rd4 Qe5 Rd8 Qb8 Kf2 Rf6 Ke3 e1Q+ Qe2 Qh4 Qd3 f2 Ke2 Rf5 Kd1 Qe7 Qc4 Kc7 Qa6 Rhh5 Bc4 f1B Rg1 Bh3 Rg2 Rb5 Rf1 Rbf5 Rf7 Rf2 Na1 Rd5 Ba2 Rd3 Nb3 Rg3 Rh2 Rg1 Rg2 Rh1
4bq1q/3Q3q/1PRBn1pn/6pK/1RNBkP2/q1B1N1B1/R2r1r2/1bb2B2 w - - 0 1 illegal: No possible last move, all moves rejected
4b2K/NR1rq2q/1pR1R3/BBP2pnn/2P1R3/bk2rR1B/3QNr2/1r1b4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 axb4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 b6 a4 f6 c4 f3 h6 f2 h7 d6 a5 b3 a6 g4 h5 b2 h6 g3 a7 g2 Rh3 Bg7 Qd2 Nd7 Rf3 Nf8 Nc3 b1R Nb5 f5+ Kf4 d5 e4 d4 e5 d3 Ne2 g1Q Bh3 Rb8 a8R f1R R8a7 Nf6 Rb7 Bd7 Na7 Qh1 Kg5 Be8 Ra3 Rg8 h8R Rf2 h7 Qe7 Rf4 Qh2 Re4 Rd8 Bb2 Rd5 Bc3 Rd7 Ba5 Qh1 Qe1 d2 Rf3 d1B Qc3 Ng6 Qd2 Rf8 Rg8 Nf4 h8R N4h5 Rh6 Rf7 Kg6 Nh7 Rf8 Rd3 Rg8 Re3 Rh8 Bea4 Rc8 Ng5 Rhh8 Be8 Rc6+ Qd6 Rg8 Bh8 Kh6 Rd7 Rg6+ Bf6 Rcc7 Qe7 Rc8 Kf7 Rc6 Bh8 Rgd6 Qh2 e6+ Kf6 Ref4 Ke5 Rh4 Nf7+ Kh7 Ng5+ Kg8 Qf4 Rg4 Ke4 Rh4 Bb2 Rg4 Ba3 Kh8 Qf7 e7 Qg6 Rg1 Qh4 Re1 Qf7 Qb2 Qg6 Re6+ Kd3 Qb4 Kc2 Qd2+ Kb3 Re4 Qd6 Re6 Bg6 e8B Qe7 Rcd6 Rc7 Bb5 Be8 Rc6 Rd7 Rg1 Qe4 Rg4 Qd3 Rge4 Qd5 Rg6 Qdf7 Rge6 Qh7#
3r1N2/2Nb1Rq1/Rpnqn1NK/p1N1rbP1/BP6/2Bn4/k1N1nQq1/B7 w - - 0 1 illegal: No extended proof kernel
3Kb1BR/1BNn1nq1/1p4kp/q6N/1brb1B1q/4PBPN/R1q1Q3/1B2r3 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 c5 Kg3 f5 Kh4 Kf7 a4 c3 d4 b6 e6+ Kg7 e7 c2 e8B b3 g3 b2 a5 f4 d5 f3 a6 f2 d6 c4 a7 c3 d7 Nf6 g6 Bb4 Bf4 c1Q Kg5 c2 e3 Qd2 Nh3 c1B Na3 b1Q Qe2 Bb2 Nb5 Qbc2 Ra2 Bd4 Bg2 f1Q Bb7 Qa1 Nc7 Ne4+ Kf5 Qh4 Ke6 Rf8 Rh2 Rf5 Rh1 Rg5 Bf7 Kh6 g7 Qac3 Bg8 Kg6 Rh2 Rc5 Rh1 Ng5+ Ke7 Qdd1 d8N Bd7 Nde6 Be8 Kd8 Qde1 Bf3 Rc4 Bf7+ Kf5 g8B Kf6 Ng7 h6 Nh5+ Kf5 Rf1 Qed2 B7d5 Kg6 Bb7 Nd7+ Bc8 Rb8 a8B Qe1 Bab7 Ra8 Rf2 Ra3 Rf1 Qea1 Rc1 Rb3 Rd1 Rb1 Rd3 Q3b2 Rda3 Re1 Ra8 Qa3 Rb8 Qa5 Ra8 Qcf5 Bbe4 Qc3 Bb1 Qfc2 Bcb7 Qe5 R8a5 Qg7 Rf5 Qa3 Rf8 Qa5 Be6 Ba1 Rh8 Bd4 Bg8 Nf7+
2nN2N1/r1Bb2Nk/Pq5p/n4R1n/1RRpNP1r/1r1QN3/6Kb/1r1q3B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 g4 Kg7 a4 b5 c5 d5 f6+ Kg6 c6 e5 a5 b3 a6 h6 f7 d3 c7 b4 Rh5 b2 Nd2 b1R Ne4 d4 Nf3 b3 Bg2 d2+ Kf1 b2 Ra4 Qd5 Rb4 Qa5 Nh2 Nf6 Bh1 Nfd7 Kg2 Rg8 Nf1 Qb6 Ne3 Bd6 f8N+ Kg7 f3 Ra7 g6 Nc6 g5 Na5 Ne6+ Kh8 g7+ Kh7 Qb3 d1Q Qd3 Rf8 g8R Rf4 Ng7 Rh4 Rd8 Nf8 Re8 Bd7 c8N Ng6 Ne7 Bc7 Nc6 Ne7 Rf8 Nc8 Rf5 Bd6 Nd8 Bb8 Nd2 e4 Rc5 Bg3 Rcc4 Bh2 g6+ Kg8 Nc2 e3 Ne4 e2 Rf5 Kh8 Bf4 e1N+ Kf1 Kg8 Bc7 Ng2+ Kf2 Nf4 Ne3 Nh5 f4 Kh8 Kg2 Kg8 Nge6 Kh8 g7+ Kh7 g8N Ra1 Nc6 b1R Ng7 Ra3 Nd8 Rab3
1b4Bq/2Nn4/PqrBPNp1/n1p3R1/q2b4/3Bkb2/1qB2NRr/2KB1Q2 w - - 0 1 illegal: No proof kernel
1B1N2qn/1KR2qRP/2Rb1r1p/Q1Pr1R2/2p2r2/4R2n/4BNb1/nk2Bn2 w - - 0 1 illegal: No proof kernel
1nr2bk1/RBBQ2Pr/6bB/2r2B1K/1N4pN/p1n1bB2/4Pq1N/1R4qb w - - 0 1 illegal: No possible last move, all moves rejected
1B1R1RN1/N4Rpn/2Nnr3/K1kb1QPn/p7/n2q1N1B/1bb1P3/q2rN3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Qc2 Nh6 Qf5 Ng8 Qg4 hxg4 d4 Kd7 Kd2 Kd6 Kc3 c5 b4 a5 h4 f5 h5 c4 b6 g3 b5 f3 b7 g2 b6 f2 h6 a4 Kb4 c3 h7 f4 Rh6+ Nf6 Nd2 c2 Ndf3 Na6+ Ka5 Bf5 Ne1 f3 b8Q+ Nc7+ Qa7 Qd7 b7 Nb5 b8N Na3 Nc6 Re8 Bf4+ Re5 Qb7 c1Q Qb5 Bc2 Na7 Be7 Rb1 Rd8 h8N Qh3 Rb4 Qa1 Ng6 Nh7 Rh5 Bf6 Ne7 Qf5 Ng8 Qd3 Rc4 Rd7 Rc7 Rd8 Rf7 Rd7 Bd2 Re6 Bf4+ Be5 Rh6 Rd8 Rhf6 Rd7 Nh3 g1N Rf8 Rd8 R6f7 Rd7 Bg2 f1N Bg3 f2 Qb1 Nf3 Ng1 Qd1 Bh3 Nh4 Ngf3 Nf5 Bh2 N1g3 Qb5 f1B Qd3 Ne3 Qf5 Nh5 Bg3 Kc7 d6+ Kb7 d5 Bg2 Bh2 Bb2 Bf4 Qd3 Be5 Rc7 d7 Rcc6 Bb8 Rcd6 d8R+ Rd7 Kb4 Kb6 d6 Bh1 Nd2 Bd5 Ndf3 Rc7 d7 Nec4 Nh2 Nd6 Nhf3 Kb7 Ka5 Rc4 Nb5 Kc6 Na7+ Kc5 Rde8 Rf4 d8N Rg4 Ndc6 Rg1 Rd8 Rh1 Ng2 Rc1 Nge1 Rd1
B2R1bRB/rq4pq/1BP4k/1QqRn1r1/1nR1npq1/4b3/N3RNP1/5K2 w - - 0 1 illegal: No proof kernel
Bbb3N1/q3Pk2/5b1K/2Q1nB1b/nBNB4/p1q5/p1r3RP/RR1B2qr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 bxa4 d4 cxd4 Kf2 f5 Kg3 d5 Kf4 a5 c4 a3 b4 g6 e4 d3 h6 d2 e6 d4 b5 a4 e7 d3 Kg5 f4 b6 f3 b7 f2 e5 Kf7 h7 Nh6 c5 Qb6 c6 Qa7 c7 Na6 b8R Ng4 Nh3 Bg7 Bg2 f1Q Qc2 d1Q Bd2 Qfg1 Nf2 Qf3 Rb2 Nc5 Bb4 d2 Ne4 d1B Nbd2 Qc3 Nc4 a2 Qc1 a3 Nf6 Rb8 Ng8 Na4 Ba8 Bf3 Rg2 Bf6+ Kf4 Rb6 Qe3 Rd6 Qc5 Rd7 Rb1 g5+ Kf5 Rd1+ e6+ Kg7 e8B Ne5 Ra1 g4 Bh5 g3 Kf4 Be2 e7 Rb1 Bg4 Kf7 Bf5 Re1 Bc2 Bh5 Bd1 Bg7 Kg5 Bf6+ Kh6 Rf1 Rb2 g2 Rbb1 Qf2 Rb2 g1B Rc2 Qfd4 Rg2 Bf2 Rhg1 Bg3 Rh1 Qg1 Rb1 Ba6 c8B Bb7 Bf5 Bc8 Rc2 Ng6 Rcb2 Bb8 Ra1 Ne5 Rbb1 Qg4 Rg1 Re1 Rg2 Rh1 Rgb2 Qg1 Rg2 Bh4 Nf6 Rd8 h8B Rd2 Ng8 Rc2 Bf6 Ng6 Be5 Bf6 Bd4 Ne5
kq3N2/N3pb1B/nq1Nn2q/1b1NpR2/1B1B3b/4PQP1/3Nb1r1/3rR2K w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 h4 gxh4 Qb3 f6 cxd5 Kd7 Qc3 Ke8 Qe5 fxe5 d4 Kd7 b4 a5 f4 h5 Kf2 c5 f5 Kc7 e3 Kb7 f6 a4 b6 a3 d6 h3 d5 h2 g3 h4 Kg2 c4 d7 a2 f7 c3 d6 c2 b5 Bg7 f8N Na6 Bd3 Bf6 Nf3 Nh6 Bh7 Nf7 Re1 Ng5 Bb2 c1Q Bd4 Qcc7 Kh1 Ne6 Nfd2 Qb8 Nc3 Rg8 Rad1 a1Q Nd5 Ra7 Rf1 Ka8 Rf5 Bb7 Rg1 Bc6 Re1 Qdc7 d8B Qc1 Kg2 h1B+ Kg1 h3 d7 Be4 Kh2 Bd3 Kh1 Qcb7 Bc7 h2 d8N Qc5 Nf7 Be2 Nd6 Bh4 Bd8 Rh8 Bc7 Q7c8 Bd8 Rd7 b7+ Ka7 Ba5 Qb6 Bb4 Qd8 Kg2 h1B+ Kh2 Bhf3 Kg1 Bh5 Kh1 Qbc7 b8N Bf7 Rf6 Ka8 Rf5 Qbb7 b6 Bcb5 Nc6 Qbb8 Na7 Qc6 Bg6 Rh6 Bh7 Rf6 Rh5 Rf2 Rg5 Rg2 Rf5 Qbc8 b7+ Kb8 Ng6 Qh8 Nf8 Qb6 N6e4 Qf6 Nd6 Qh6 Nc3 Rc7 Nd5 Rc1 Nf4 Kc7 b8Q+ Kd8 N8g6 Rd1 Qb7 Qb8 Qf3 Kd7 Nf8+ Kc7 N6e4 Kb7 Nd5 Ka8 Nd6 Rb1 Nd7 Ra1 Nf8 Rd1
1n3K2/rrBqp1N1/BbNBqq1R/p2b4/NQ2RqnN/P7/6P1/1Nk4r w - - 0 1 illegal: No possible last move, all moves rejected
1k6/nN1Pb2n/4n1B1/nbR1pPb1/1KNB3r/q3N1Nr/pQ6/B3RNq1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 Kd2 c5 Kc3 Kc7 f4 e5 b4 h5 g5 e3 b6+ Kb7 d6 c4 g6 e2 d5 e1N d7 a4 g7 a3 d6 a2 b5 h3 Qd2 h2 Qb2 h4 Bd3 h3 Ne2 Nf3 Nd2 Nc6 Nf1 Ng5 Neg3 Nf6 g8N Be7 Nh6 Kb8 b7 Nfh7 Bg6 Na5 f5 Ne6 Kb4 c3 Ng4 c2 Nge3 Ra6 Bd2 c1B Bc3 Rb6 Rg1 h1N Rg2 h2 Rc2 Bd2 Re1 Nf2 Rcc1 h1Q Rc2 Qe8 d8N Bd7 Rcc1 Nd1 Rc2 Ka7 b8N Qg1 Nb7 Qd8 Nc6+ Ka8 Rc1 Ra6 b6 Be8 Nd4 Kb8 Nc4 Bb5 Nc2 Bdg5 N2e3 Ra8 Qg2 Qd7 Ba1 Nc3 Qb2 Ra7 Nd8 Rc7 b7 Rc5 Rc2 Rd5 Rcc1 Rd4 Rc2 Rh4 Rcc1 Ka7 b8B+ Ka8 Ba7 Rh3 Bb6 Kb8 Bc5 Nhf8 Qh2 Ba4 Nb2 Nb5 Nb7 Na7 Qc2 Bb5 Qb3 Qc6 Bd4 Qe4 Rc5 R8h4 d7 Qd3 Nbc4 Nh7 Qb2 Qa3+
1b1k2N1/2p1rQ1K/3qn3/2Ppb2R/P2R1RB1/1r1Nr1Bq/1R1nr1R1/1N3n2 w - - 0 1 legal: proof: g4 a5 b4 axb4 d4 e5 dxe5 f5 h3 fxg4 Kd2 g5 Qe1 g3 Nc3 b6 Kd1 g4 Kd2 g2 Qd1 g3 Nb1 Bb7 Ke1 Bc6 Kd2 Bf3 Ke1 Bg4 hxg4 Ra6 Nc3 Ra4 Nb1 Ra8 Kd2 h5 Kd3 d6 Ke4 b5 Kf5 b3 Kg6 b2 e4 h4 a4 b4 c4 d5 f4 h3 e6 b3 e7 h2 e5 Rh7 g5 Ra7 f5 Ra6+ f6 Nc6 f7+ Kd7 e8R Bd6 f8R Nf6 Nf3 g1B Be2 g2 Ne1 Ba7 c5 g1R Bf4 Ng4 Ra2 Re7 Bg3 Bb8 Rf4 Rg2 Nd3 Ne3 Rg8 Nd4 Qf1 Ne6 Bg4 Re2 Rg7 Qf8 Kh7 Kd8 g6 Rb6 Qf2 Nf1 Rd4 Rb7 Qf7 Rb4 Rf4 Rbe4 Rg8 R4e3 g7 Nd4 e6 Be5 Na3 b1N Rb2 Nbd2 Nb1 Re8 Bf3 Qd6 e7+ Kc8 Bg4+ Ne6 Rd4 Kd7 Rf8 Kc8 g8N Kd7 Rg1 h1Q+ Kg6 Qh3 Rg2 Rd8 e8R+ Kc8 Re7 Re8 Qg7 Kd8 Rff4 Ne4 Qf6 Ned2 Rh7+ Re7 Qf5 Qb6 Qf7 Qd6 Rc2 b2 Rh5 Bf6 Kh7 Be5 Na3 b1R Rb2 Rc1 Nb1 Rc3 Bf3 Ra3 Bg4 Rb3
r1q1kB2/nPR2R1N/2rB4/N1Q4K/2p2b2/1Bp1PB1r/1nn1q1B1/Nb1n4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 f5 Kf3 c5 g4 a5 b4 h5 d4 h4 e3 h3 b6 h2 g6 c3 g5 a4 d5 a3 b5 a2 d6 Bg7 d7+ Kf8 b7 Nf6 b6 Qe8 d8N Bh6 Qd5 Ne4 Ba3 Nf2 Nh3 Nd1 Nc6 Rg8 Nd2 Nb2 Na5 Nc6 b8B Na7 b7 Rg7 Rd1 a1N Bg2 Nc2 Rhf1 h1N Ndb3 Nf2 Na1 Qe6 Bd6+ Ke8 Rd4 Nfd1 Rc4 Rc7 g7 Rc6 g6 Qg8 Rb4 Be6 Qd4 Ba2 Rc4 Bb1 Ng5 Qe6 g8B Qc8 Nh7 Bg5 Rb4 Bh6 Bb3 c4 g7 Bg5 g8B Bh6 Rb5 Bg5 Bh3 Bh6 Kg2 f3+ Kg3 f4+ Kh4 f2 Qc5 f3 Bg2 Bg5+ Kh5 Bf4 Rg1 f1R Bd5 f2 Bdf3 Re1 Rf1 Re2 Rb6 Rd2 Bf8 Rd7 Bd6 Rg7 Bb4 Rg3 Bf8 Re6 Rc6 Rd6 Rc7 Rc6 Rh1 f1Q Rh4 Bd6 Rf4 Qe2 Rff7 Be5 Qb6 Bf4 Bbd6 Nd3 Qb4 N3b2 Qc5 Rh3+
3b2qN/NP1prRnq/5n2/2R3BQ/knrP1rbR/B6R/KB1pR3/7n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 a4 gxh4 axb5 f5 exf5 c4 Bd3 cxd3 Kd2 a5 Kc3 h5 Kb3 e5 c4 d2 f4 h3 g4 h2 f6 h4 f7+ Ke7 f5 Kd6 b6 Kc6 b7 h3 c5 Kb5 g5 e4 c6 e3 c7 e2 g6 e1Q f6 a4+ Ka2 a3 b4 Ra5 g7 Qee7 Ne2 Nc6 b8B Ba6 c8R Bb7 Nbc3+ Kb6 b5 Rh4 Bb2 Ra4 Nf4 Ka5 b6 Rc4 Ng6 Rf4 Nh8 Kb4 Re1 h1N Nb5 h2 Qh5 Ka4 Na7 Ng3 Re2 Nf5 Rh1 Ba6 b7 Nb4+ Kb1 Bb5 Rc5 a2+ Ka1 Qe4 Bd6 Be7 f8B Bc6 f7 Nf6 g8R Ng7 Be5 Qh7 Bc7 Nge8 Rg3 Bf3 Rh3 Bg4 Bh6 Qa8 f8R Ng7 Rf7 Qag8 Bd6 Bd8 Rh4 Bf3 Bg5 Bg4 Rc1 h1N Rc3 Qf8 Rch3 Qe8 Bc1 Qeg8 Kb2 a1R Bf8 Nc2 Bd6 Rb1+ Ka2 Rb6 Bf8 Re6 Bb2 Re5 Rc8 Ree4 Bfa3 Re7 Rc5 Nb4+
1B2Bqb1/np6/1K3NR1/r3NrqP/r5Pk/2N2q1n/p1Q1B1qb/RB3B2 w - - 0 1 illegal: No proof kernel
BNnR1B1N/1p1KP3/qrr3b1/5Rb1/nQq2p1b/BbNPq3/6B1/B3k3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 g5 h4 f5 d6 c5 d7 f3 Ke6 f2 h6 g4 h7 b3 a5 g3 a6 b2 h5 g2 a7 Na6 h6 Ne7 Ra5 Qc7 Nc3 b1B Nf3 g1Q Bh3 f1Q e4 Kd3 e5 c4 Qe1 Qe3 Bg2 Qfe2 Nd4 Nc5+ Kf7 Qd6 Ke8 Qa6 d8B Na4 Nc6 Be6 Ba3 Rc8 Nb8 Rc6 a8B Nc8 Bde7 Bg8 Bed6 Be7 e6 Bh4 Bf8 Bc2 e7 Bd5 Ne4 c3 Kd7 Bdb3 Rc5 Rg8 h8B Rgg6 h7 Bb1 Rh3 c2 Ba1 c1B h8N Rb6 Nc3 Rgc6 Ra5 Qg4 Rg3 Qgc4 Rg8 B1c2 Qg3 Bb1 Qd6+ Kc2 Qb4 Kd3 Na2 Ke2 Nc3+ Ke1 Rb5 f4 Re5 Bg6 d3 Bb2 Rf5 Kf2 Ne2 Bbf6 Nc3 Ke1 Bg7 Qe5 Rd8 Qe3 Bf8 Bfg5
n2Rqq1r/PBpbBN1P/1k5b/r4n1N/1N3R1Q/3nn2K/2qp4/1R3R1R w - - 0 1 illegal: No proof kernel
1k2BNr1/p2PPQr1/np2bR2/1K2RrR1/1r3nb1/6q1/1R1R1qN1/B3b1N1 w - - 0 1 illegal: No proof kernel
2r1k3/r1B2q2/1B2r3/B1pNr1rb/1P1npb2/rBn5/1PN3R1/R2B1QNK w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a3 d5 cxd5 b4 axb4 g5 Qg4 gxh4 Qe2 Na6 Qd1 Nb8 g4 a5 f4 e5 Kf2 h5 Kg2 c5 d4 h3+ Kh2 e3 g5 e2 f5 e1R d6 h4 f6 a4 d5 a3 g6 a2 g7 Qc7 Bd3 Ra7 Nc3 Bg4 Be2 Nc6 Bf4 Nge7 g8B Bh6 Be6 Bh5 f7+ Kf8 d7 Nd4 d6 Nd5 Bg3 Bf4 d8B Rg8 d7 Rg5 Bf3 Re3 Qf1 e4 Rb1 a1R Bd1 R1a6 Ra1 Qb7 Ba5 Rb6 Nb1 Ra3 d8B Nc3 Beb3 Re6 Bdb6 Ke7 f8N Ke8 Ng6 Qf7 Ne7 Rge5 Ne2 Rg5 Kg1 h2+ Kg2 Ree5 Rg1 h1R Nd5 Re6 Ra2 Rge5 Ra1 Rh3 Bh2 Rg3+ Kh1 h3 Rg2 Rgg5 Bg3 h2 Ng1 Rc6 Bbc2 Rc8 Bb3 Ra2 Na3 Re6 Nc2 Ra3 Bh4 Rge5 Bhd8 Rg5 Rg3 Ree5 Bdc7 Re6 Kg2 h1R Rg4 Rh4 Rg3 Rhg4 Kh1 Rge5 Rg2 Rgg5
NN3Rb1/3Q2bn/p1R3B1/1P1b2qn/2b1RRBp/5RP1/kBKbr1b1/5r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 e4 h5 b4 c5 g3 f5 b6 a6 b5 c4 b7 f3 Bb2 f2 Be2 f1B Ra3 f4 Nf3 c3+ Kc2 h3 Nbd2 h4 Ne5 h2 Bg4 f3 Nd7 Be2 Rf1 h1B Rb3 f2 e5+ Kc7 e6 Kd6 e7 Nf6 e8B Nh7 Re1 f1B Bg6 Bc4 Re4 Bg7 Rb4 Rf8 Rf4 Nc6 b8R Qg5 Rb6 Bfg2 Nb8 Be6 Re4 Rf1 Rb3 Ke7 d6+ Kf6 d5 Ne7 d7 Nf5 d6 Bg8 Rf4 Ke5 d8R Kd5 d7 Kc5 Ra3 Kb4 Re8 Ra7 d8R Re7 Rdd4 Re2 Rf8 B2d5 Rc6 Bhg2 Kc1 c2 Raf3 Ka4 Rde4 Kb4 Nb3 Ka4 Nc5+ Kb4 Ncd7 Ka4 Bc3 Ka3 Nb6 Ka2 Bf6 Re3 Kd2 c1B+ Kc2 Bd2 Na8 Re2 Bc3 Bd4 Ba1 Ng7 Bb2 Nh5 Qe1 Bg7 Qd1 Bb4+ Qd2 Re3 Qd4 Bd2 Qa7 Ree1 Qd7 Re2
1Rbr1nRB/1P5q/N2rR3/b1Qb2Bn/2K1Npk1/4b1Pb/2p2R2/1B2R1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Kd7 Kd2 Ke6 Kc3 Kf5 b4 c5 b6 h5 e3 a5 b5 h4 g6 a4 g7 f3 b7 h3 g3 a3 d5 f2 d6 h2 d7 a2 b6 Qe7 d8B Ra6 Nf3 Kg4 e4 f5 e5 f4 e6 Nd7 b8R Ngf6 b7 Nh5 Na3 Rd6 Bd3 f1B Nc2 Bh3 Rf1 h1B Bb2 Qf7 Rc1 a1B g8R+ Qg6 Bg5 Qh7 e7 Bg7+ Ncd4 Nf8 e8R Bf6 Re6 Bd8 Qa4 Ba5+ Qb4 B1g2 Nd2 Bc6 Rg7 Rg8 Rce1 Rh8 Ne4 Rg8 Kc2 c3 Kb3 c2 Nb5 c1B Kc4 Be3 Bb1 Bg1 Bbf6 Bad4 Rf2 Be3 Nc7 Rh8 Na6 Rg8 Kc3 Rh8 Rg8 c4 Kc2 c3 Kb3 c2 Kc4 Rd2 Qc5 Rd6 Bd4 Ng6 Rg7 Rhd8 Rg8 Nf8 Bh8 Bd5+
1r1n4/B2rQ1KN/1rk1N2R/2p3n1/1b2npRN/2R3q1/PBPr2nN/Nb6 w - - 0 1 illegal: No proof kernel
Nnq5/1B4NP/3R2N1/kp2B2b/4rRQ1/1nNrbB1K/4pP2/Nbnb1n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 e5 c4 g5 h4 d5 c5 Kd7 f6 Kc6 f7 b5 a5 b3 a6 e4 a7 g4 h6 b2 h5 e3 h7 d3 h6 d2+ Ke2 g3 Kf3 d4 Kg2 d3 Nf3 Nf6 Ra4 Nfd7 Kh3 g2 Nc3 b1B Ne1 Kc7 c6 Kb6 c7 Nc5+ Rg4 Nb3 Nc2 Ka5 Bb2 Bc5 Be2 Re8 f8N Re4 h8N Be6 c8B Bf7 h7 Bh5 Ba6 Qc8 Ne6 Bb6 Qg1 d1N Na1 d2 Rf4 Bd4 Bb7 Bc5 Ng6 Bd4 Qh2 g1N+ Kg3 Bb6 Bf3 Ne2+ Kh3 Nec1 Qg3 e2 Qg4 Ne3 Rd1 Nf1 Ng7 Bd4 Nd5 Bb6 Be5 Be3 Nc3 Nd3 Rc1 d1B Rc2 Ndc1 Rd2 Nd7 Rd6 Rb8 Bc6 Rb6 a8N Nb8 Bd5 Rb7 Bc6 Rd7 Bb7 Rd8 Re6 Rd2 Rd6 Rd3
RN2N1KB/1Pbb1r2/1pb3N1/B3r1r1/2qp1n2/kB3b2/2QNPn2/r2N2R1 w - - 0 1 illegal: No proof kernel
4b3/pN3nNR/1pNB1k1r/1rnPnB2/1Q4B1/2b4P/nrBq2R1/1B1r2K1 w - - 0 1 illegal: No possible last move, all moves rejected
nnR1q2B/5Brk/1q2R1p1/rn1q2Pp/2N4q/P2Rq2N/2b1NRQ1/3K1R2 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 exf4 h5 g6 h6 Bg7 hxg7 Ra3 Rh2 Ra6 Rh1 Ra8 e4 h5 g4 b5 d4 f5 e5 Kf7 g5 c5 d6 b3 d5 f3 a3 c4 d7 b4 d6 b2 Nc3 b1N Nd5 f2+ Ke2 b3 Bg2 f1Q+ Ke3 c3 Qe2 c2 Qd1 b2 Rh2 Ra5 Qf3 Nc3 Kd2 b1Q Bb2 f4 Nh3 Ne7 g8R Qc4 Re8 Kg7 e6 Rg8 Bf1 Qb3 Qg2 f3 Bc4 f2 Ndf4 f1Q Ne2 Nd5 e7 Nc7 Bf7 Q1a2 Rc1 Qf2 Rf1 Kh7 Ba1 N3b5 Bh8 Na8 Kc1 Qc7 d8R Bf5 d7 Qd5 Rc8 Qh4 d8R Rg7 Rd6 Qd7 Red8 Be4 e8N Qab3 Re6 Bd3 Nd6 Qe8 Nc4 Qb4 Nhf4 Qbd6 Nh3 Qb6 Qg3 Bf5 Rhf2 Be4 Qg2 Bf5 Kb2 c1Q+ Kb3 Qce3+ Kb2 Qde4 Rd3 Qd5 Kc2 Be4 Kd1 Bf5 Rd4 Bb1 Rd3 Bc2+
nKbB1BQn/p2N4/np1R4/b3PBr1/q2Nqn2/3Bq1k1/P3B2N/2R4n w - - 0 1 legal: proof: f4 d5 e4 dxe4 b4 g5 h4 c5 bxc5 gxh4 Kf2 e5 Na3 e3+ Ke2 b6 Ke1 e4 Nb1 Na6 Rh2 Rb8 Rh1 Rb7 Qg4 Re7 Qd1 Re5 fxe5 Qd7 Bc4 Qd5 Bf1 Qd8 Ke2 Ke7 d4 Ke6 g4 f5 c4 h5 c6 h3 d5+ Kf7 c5 Kg6 g5 h4 d6 Kh5 g6 Kg4 g7 h2 d7 h3 c7 f4 c6 Rh7 Qb3 Bb4 Na3 Rh5 Nf3 Kg3 Nb5 Ne7 g8N Ba5 Nbd4 Qe8 d8B Ng6 Ba3 Rg5 Bf8 Nh8 Nf6 Qd7 Qg8 Qe8 Kd1 e2+ Kc2 e1N+ Kb3 e3 Ka4 e2 Kb5 Ng2 Nd7 e1Q Bd3 Qe3 Rhd1 h1Q Nh2 f3 Rac1 f2 Be2 f1N Bd3 Bb7 c8B Nf4 c7 Qhe4 Rd2 Bd5 Bb7 Be6 c8B Bg4 Bd5 Be6 Kc6 Bf5 Nhf3 h2 Kb7 h1N Nh2 Be6 Rdc2 Bg4 Rc6 Bf5 Rd6 Bg4 Nc5 Qa4 Bf5 Bh3 Bg6 Be6 Bf5 Bc8+ Ka8 Qg1 Nd7 Ne3 Bc6 Ned5 Bcb5 Qge3 Bbc4 Nac7+ Kb8 Nb4 Be2 Na8 Bcd3 Na6+
q1R1R1r1/r2Q2qP/1R1p2B1/Rq1P2Nn/pB2N3/1R1r2n1/1bN1kqK1/n7 w - - 0 1 legal: proof: b4 e5 c4 h5 a4 b5 cxb5 d6 f4 exf4 g4 hxg4 b6 Bd7 a5 Bc6 b5 Ke7 a6 Bb7 axb7 Ke8 Kf2 Ke7 d4 Ke6 e4 f5 h4 c5 d5+ Ke5 h5 a5 h6 g5 h7 a4 Bh3 c4 Be3 c3 Qc2 g3+ Kf3 g2 Qb3 g4+ Kf2 c2 Qc4 c1R Nd2 f3 Qc7 f4 Qd7 Bg7 Rb1 Na6 b8N Rd1 b7 Nb4 b6 Nf6 Na6 Rg8 b8R Nc2 b7 Na1 Rc8 Ra7 b8R Nh5 R8b6 Bh8 Rc5 Qa8 Ra5 Bf6 Nb4 Bh8 Nf1 Rd3 Bd2 Kd4 e5 Bf6 e6 g3+ Ke1 Be5 e7 f2+ Ke2 Ke4 Rb3 Bb2 Nf3 g1Q Nc2 g2 Bb4 Qh2 Be6 g1Q e8R Qg7 Rc8 Qh4 Bf7 Qhf6 Bg6+ Qf5 N1h2 f1N Kf2 Nfg3 Rd1 Qh8 Ng4 Qg7 Nfe1 f3 Nf6+ Kf4 Ne4 Qff8 Kg1 f2+ Kg2 Qff6 Nf3 f1Q+ Kh2 Qd4 Re1 Qff2+ Kh3 Qc4 Nfg5 Qcc5 Rc1 Qb5 Re8 Qe3 Kg2 Qe1 Na3 Ke3 Rcc8 Ke2 Nc2 Qf2+
2K2NRq/k3qb2/P1R4n/Nrn2Q1B/1p1q1B2/p1N3R1/PN3N2/r2nrn2 w - - 0 1 legal: proof: f4 a5 h4 g5 c4 gxh4 f5 d5 cxd5 e6 Rh3 exf5 Rh1 f4 b3 a4 b4 Bc5 Bb2 Bb6 Bc1 Ba5 bxa5 Be6 Bb2 Bg4 Bc1 Bc8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 f5 e4 h5 g4 b5 d4 Kb7 d6 h3 g5 a3 a6+ Ka7 d7 h4 Ke6 f3 g6 f4 d5 b4 e5 h2 d6 c4 g7 f2 Qg4 h3 Nc3 f3 Be2 f1Q Bf4 f2 Qf5 Qg2 Bh5 f1N Rc1 Nh6 g8R Qg4 Rc2 Bb7 Rc1 Qf8 d8N Nd7 Rc2 Bf3 Nb7 Rb8 Na5 Rb5 Rg2 Qd8 Rg3 Qc7 Ke7 Bd5 e6 Nc5+ d7 Qg7+ Ke8 Qd4 d8N Qb7 e7 Bf7+ Kf8 Rh7 e8N Rg7 Nd6 Rg6 Bd1 Re6 Bh5 Re1 Ne6 Qbe4 Ke7 Qe2 Nd1 c3 Kd8 c2 Nf8 c1R Nb2 Qe7+ Kc8 Rb1 Ne2 Ra1 Rhg1 h1N Ne4 h2 N2c3 Nf2 R1g2 Nd1 Nf2 h1Q R3g6 Na4 Rc6 Nc5 R2g3 Qhh4 R8g6 Qhf6 Rg8 Qh8
1n1b1r2/1kr1pBQn/1q2B3/3KP1R1/1n1R1qN1/1qB4p/1P1BB1NN/1r3r2 w - - 0 1 illegal: No possible last move
1Rbk4/N1pN4/qpBPR2n/n1P1r2N/6n1/Q1n2r1N/2K1NR2/1rB3qq w - - 0 1 legal: proof: e4 g5 h4 a5 g4 e6 b4 axb4 e5 Na6 h5 Ra7 f4 Bc5 fxg5 d6 g6 dxe5 g5 e4 h6 Nb8 Ba6 Bd4 Bf1 Bg7 hxg7 Ra8 d4 h5 Kd2 f5 c4 b3 a4 b6 d5 e5 d6 b2 c5 f4 a5 h4 a6 e3+ Kc2 e2 a7 e1R Rh2 f3 Bg2 e4 Nc3 b1N Nh3 f2 Ne2 f1N Qd3 e3 Qa3 Nh6 g8N Nc6 g7 Nc3 g6 Na5 Ne7 Rf8 g8N Rf3 g7 Qd7 Rb1 Kd8 Nf6 Qb5 g8N Qa6 Nd7 Rb8 a8R Rd1 Nef4 e2 Ngf6 e1Q N6h5 Qf2+ Ne2 Qg1 Rb4 Re1 Re4 Ne3+ Kd2 Neg4 Re6 Rd1+ Kc2 Rdf1 Bh1 Rd1 Rf2 Re1 Ng5 h3 Bg2 h2 Nh3 Rf6 Bc6 h1Q Bg5 Rf3 Bc1 Rb7 Rb8 Ra7 Nf5 Ra8 Nfd4 Rd1 Nb5 Re1 Neg3 Re5 Ne2 Nb3 Qa1 Qb7 Qb1 Ra1 Qa2 Qa6 Qa3 Rb1 Na7 Na5
bk1rBn2/4Bb2/1KR1p3/q1pNnBPb/4nR1B/2PNb3/3b2Bb/1R3Q2 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 b4 a5 bxa5 b5 Ne2 g5 Ng1 Ra6 Bc4 Rg6 Be2 fxg4 Bf1 g3 Na3 g4 Nb1 Rg5 hxg5 Qd4 Rh2 Qd3 Rh1 Qd8 Ke2 Kd7 Ke3 h5 Kd4 e3 Kc5 b4 f4 h4 a4 c6 d4 Kc7 d5 h3 f5 e2 f6 e1B f7 e6+ d6+ Kb7 a6+ Ka7 a5 g2 Be3 h2 Bf2 b3 Ne2 g1B Bh3 g3 Nc1 g2 Nd3 b2 Bf5 Bd7 Nc3 b1B Nd5 Nf6 c3 Bd2 Qf1 Be8 Ra3 Bg7 f8R Bh5 d7 Ka8 a7 Ne4+ Kb4 c5+ Kb5 Rg8 Bh4 Bge3 Ra1 Qc7 d8B g1N Be7 Nf3 Ra4 Kb7 Rc8 Rd8 a8B+ Ka7 a6 Be5 Bc6 Nd7 Rc4 Nf8 Be8 Qa5+ Kc6 Bc2 Rc7+ Ka8 a7 Bf7 Rg1 h1B Rb4 Bd1 Rb1 Nd7 Rg4 Bh2 Rf4 Be2 Rbb7 Nf8 Rb1 Qa3 Kb6 Ne5 Rc6 Beh5 Kb5 Kb7 a8B+ Kb8 Kb6 Beg1 N5b4 Ng3 Rc7 Bge3 Bac6 Bd5 Bb7 Ba2 Bbe4 Bd5 Bg2 Ba8 Rc6 Ne4 Nd5 Qa5+
B1b1r1R1/1b1n3N/pK3pB1/RB3r2/Pkb2B2/1q2Bbb1/1P3b1Q/N5Nr w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 c4 exd4 cxb5 Bg7 g5 Nc6 h5 Ne5 Bd2 Bh6 Bc1 Ng6 hxg6 Bf8 Kd2 Bb7 g7 Ke7 Kd3 Kd6 Kc4 h5 e4 c5 a4 d3 g6 h4 Ne2 Rh5 Qb3 a6 Nd4 d2 Qd3 d1B Qg3 h3 Ne2 h2 Qg2 f3 Nd2 f2 Nb3 Nf6 Bg5 Qb6 e5+ Ke7 e6 Kd6 e7 Re8 Rg1 h1R Rc1 Bc2 Qh3 Bf5 Na1 Bg4 Rg3 Bgf3 Bd2 Rf5 Qh2 Bc8 g8B Bg7 Kc3 c4 Ng1 Kc5 Rc2 Qb8 b6 d5 b7 Bg2 Bd3 f1B Be2 Bf8 g7 Nd7 Bf3 Bd3 Bh7 Be2 g8N f6 Nh6 Bef1 Nf7 Bh6 Rg7 Bf4 Rg8 Bg3 Bg6 Be2 Be3+ d4+ Kd2 Bd3 Ng5 Bdf1 Rc1 c3+ Kc2 Bd3+ Kb3 c2 Nh7 Bdf1 Ka3 Kc4 Bc6 d3 Bf3 d2 Rd1 Qa7 b8B Qb6 Ba8 Bgb7 Rc1 d1B Bbf4 Bh5 Rd1 Bg4 Rd5 Bf3 Ra5 Qe6 Bd4 c1B Bc5 Kd3 Kb4 Be3 Bb6 Bef2 Bbe3 Ne5 Kc5 Qb3 Kd6 Kc4 Kc7 Kb4 Kb6 Rf8 e8B Bc4 Bc6 Re8 Bb5 Nd7+
1Kr2r2/2N4R/2Np2rQ/b1b4r/P1b1B1nN/5B2/kp1PR1rB/B1n2B1n w - - 0 1 illegal: No possible last move, all moves rejected
6b1/7B/nB1nN2Q/1kN1pRB1/NpqPrn2/1rn3Nq/1Pn1RK2/3n1N2 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 h4 fxe4 a4 g5 a5 gxh4 Qc2 Bg7 Qb3 Bd4 Qd1 Bb6 axb6 Bf5 Qa4 Be6 Qd1 Bc8 d4 Kd7 g4 c5 f4 e5 b7 a5 d6 Kc6 g5 h5 g6 c4 d7 a4 g7 c3 f5 c2 f6 h3 f7 e3 f8B b4 Ba6 h2 Be7 e2 Bcg5 c1N Bf8 a3 Bc4 h4 Qd2 h3 Bf6 a2 Qg5 Qc7 Bc5 Nh6 g8N Nf5 Qe3 Nd6 Bb6 Na6 Bd5+ Kb5 b8N Rh4 d8N Be6 Nd7 Qc4 Kf2 e1N Qh6 Nc2 Nc5 Re4 Bg5 Ne3 Ne7 Bg8 Nf3 Ne2 Nf5 Nf4 Rf1 h1Q Nfd2 h2 Ng3 Rc8 Nde6 Qg2+ Ke1 Qh3 Kf2 Rc7 Re1 Rf7 Ndf1 h1N+ Kf3 Rh7 Re2 Nf2 Bb7 Rh8 Bc8 Nfd1 Nc3+ Kc6 Rb1 a1N N3a4 Nc3 Kf2 Kb5 Rd1 Nac2 Rd3 Neg2 Rde3 Rh7 Rf3 Rc7 Bd7+ Rc6 Be8 Nge3 Bg6 Rc7 Bh7 Rg7 Bh4 Rg4 Bf6 Rh4 Bg5 Rg4 Nh5 Rg3 Bg6 Ncd5 Nb3 Nfg2 Nbc5 Nef5 Rf4 Rb3 Bh7 Nfe3 Rf7 Ngf4 Nhg3 Nc3 Rf5 Ned1+
QBk1bN1N/1p4K1/4NRr1/bBbR4/p1r1q3/Nb2NPb1/P2nb3/4q1R1 w - - 0 1 legal: proof: g4 c5 d4 f5 h4 g5 b4 e5 bxc5 exd4 Bf4 Na6 Be3 Nc7 Bc1 Ne6 Ba3 fxg4 Bc1 g3 Kd2 g4 Ke1 Ng5 hxg5 Be7 Kd2 Bd6 Ke1 Bf8 Kd2 a5 Kd3 d5 e4 Kd7 c4 h5 g6 h4 e5 a4 c6+ Kc7 f3 h3 g7 h2 c5 g2 e6 g3 e7 Be6 e8N+ Kb8 c7+ Kc8 Ne2 g1B Nd6+ Kd7 c8R g2 Na3 Rh6 Bf4 Qe8 Nf5 Bf7 Rc6 Bf2 Bb8 g1B Nf4 Nf6 g8N Ne4 Rf6 Kc8 c6 Bg3 c7 Nd2 Ne3 Bb4 Ne6 Ba5 Qe1 Qc6 Rd1 Be8 Be2 B1f2 Rg1 h1Q Qf1 Ra6 Qh3 Rh4 Nh6 Rg4 Nf7 Re4 Rg2 Qe1 Nh8 Rh4 Rg1 Rh6 Rf4 Rb6 Qg2 Rb4 Rf6 Rc4 Qh3 Bd6 Qg3 Bc5 Qg8 Bg3 Ng5 Kd7 c8N Kd8 Ne7 Qe6 Neg6 Kc8 Rc1 Qe7 Rc3 Qe5 Ne6 Qf4 Kc2 d3+ Kb2 d4 Ngf8 Qe4 Rc1 Nb1 Rd1 d2 Bf1 Rc3 Bb5 d3 Rc1 d1B Rc2 Bf2 Rd2 Bb3 Rd1 Rc4 Rd2 Rb4 Rd1 Nd2 Kc3 Bg3 Bc7 Nc4+ Rd2 Bd1 Rf7 Bb3 Qg5 Be7 Qf4 Qc6 Kd4 Bd6 Qe5 Be7 Qc5 Bed6 Qa7 Be7 Rd1 d2 Bb8 Bed6 Qa8 Be7 Ra1 d1B Rf4 Be2 Rd1 Bd6 Rd2 Be7 Rd3 Nd2+ Ke5 Qc4 Rd5 Bc5 Kf5 Qe4+ Kg5 Rh3 Kf6 Rc4 Kg7 Rh6 Rf6 Rg6+
RN1b2q1/B1qnBk2/qrr4Q/B3pPRn/2q1P1n1/4B3/K3pRB1/N3n3 w - - 0 1 illegal: No proof kernel
B2N1B2/k2r3q/r6p/B1rRr1q1/1BB1bR2/1R4n1/Pb2pK1P/2NQb2b w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 f4 gxf4 e4 Bg7 e5 Kf8 d6 Bh6 d5 Kg7 e6 Nd7 exd7 Kf6 Qh5 Bg7 Qd1 Bf8 g4 Ke5 g5 f5 g6 c5 g7 b5 Ke2 c4 Kf2 b3 Qe2+ Kd4 Qe5+ Kc5 Ke2 Kb6 Nh3 f3+ Ke1 f4 Nc3 b4 Ne4 b2 Nef2 b1B Rg1 b3 Qh5 e5 Bd3 e4 Ng4 c3 Qf5 b2 Kf1 f2 Bd2 h6 Rg3 e3 Ne5 c2 Bb4 c1B Ng5 Ra6 Ngf7 Ne7 g8B Ka7 Bc4 Be4 Qg4 b1Q Nd3 Bb2+ Nc1 Rh7 Qd1 Nf5 Ke2 Qg5 d8R f1R d7 Rh1 d6 Bcb7 Rh3 Be7 Rf8 Bef6 d8B Bfc3 d7 Be1 Bda5 Rg1 d8B Rg3 Ne5 Rd7 Bde7 f3+ Kf1 f2 Bgd5 Rf3 Nf7 Ng3+ Kg2 f1R Nd8 e2 Rf4 Bc6 Bf8 R1f2+ Kg1 Re3 Rh5 Qd3 Rb1 Bh1 Bf3 Qh7 Bg2 Be4 Bf3 Qgg8 Rd5 Qg5 Bg2 Ba3 Rb3 Bb2 Rg4 Rf5 Rf4 Bd2 Kf2 Rc3 Bb5 Rc5 Bc4 Re5 Rd6 Bf5 Ba8 Bfe4 Rd5 Be1+
qK2R1b1/2N2k2/pP2r1pn/1RR3P1/1n5N/1QbRrB1p/2RN1r1n/b3B3 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 c5 Kf3 f5 d4 h5 g4 g6 e4 c4 b4 h4 d6 a6 g5 h3 b6 c3 d7+ Ke7 d8N c2 d5 Rh5 b5 Bd7 d6+ Ke8 b7 Be7 e5 Bc8 e6 Kf8 d7 Rh8 Bg2 Bb4 Ra2 Nc6 b8R Nh6 Bd2 c1B Be1 Bc3 Qb3 Nb4 Rc2 B1b2 Nd2 Ba1 e7+ Kg7 b6 Re8 Ne6+ Kf7 d8R Bd7 Nc7+ Be6 Rbc8 Bc4 Kf2 f3 Ke3 f4+ Ke4 f2 Ngf3 f1N Nh4 f3 Rd3 f2 Bf3 Qg2 Kf4 Nh2 Rg1 Rd8 e8R f1R Rh1 Rd4+ Ke5 Re4+ Kd6 Re3 Rg1 Qh1 Rg4 Bd5 Rge4 Rf2 R4e5 Bc4 Rb5 Ra7 Na8 Be6 Rcc5 Re7 Nc7 Bc4 Rd8 Bd5 Re8 R7e6+ Kd7 Bc4 Kc8 Qg2 Kb8 Qh1 Bh5 Qe4 Bf3 Qc6 Kc8 Qa8+ Kd7 Kg7 Rb8 Rc6 Rc8 Bg8 Re8 Qa7 Kc8 Rce6 Nd5 Qa8+ Kc7 Qc6+ Kb8 Kf7 Nc7 Qa8+
1R2r2R/1Rnb1Pp1/BKB2n1r/3Qb1R1/2Ppp3/b4r1q/N2k3B/2RnN3 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Ke3 Kg6 Kd4 Kf5 h4 d5 f4 a5 c4 e3 b4 g3 c6 e2 Kc5 Ke4 b6 e1R h5 a4 b5 g2 b7 a3 f5 a2 b6 Qe8 h6 Bd7 h7 Qg6 f6 Qh6 f7 Ra6 c7 Qh5 c8B Nf6 Bf4 Re3 Nf3 g1N Bg2 Qh3 Bh2 Ne2 Ne1+ Rf3 Rg1 Ke3 Nc3 Rg8 Rc1 a1B Na2 Be5 h8R Nc3 Qd4+ Ke2 Qe4+ Kd2 Bh1 d4 Rg5 Nd1 Qd5 Nc6 b8R Na7 b7 Nb5 Bg2 Nc7 Bh1 Nh5 Bg2 Rh6 Bh1 e6+ Kb6 Ba3 Ra8 Rd3 b8R Rf3 Ra7 Re8 Ba6 Nf6 Rab7 Rc3 Rb1 Bed6 Qf5 e5 Bc6 e4 Qd5 Be5 Rc1 Rf3
RQ1b4/1b3pP1/p1n2Np1/2r1N1Br/3n2n1/NK1N1Pb1/2B1R1N1/k2r1qR1 w - - 0 1 illegal: No proof kernel
k1NR1r2/3p1p1R/5B1r/1b1prN2/1nn3KP/1Qb1N3/1bq1B2P/1B1nBB2 w - - 0 1 illegal: No proof kernel
1n1N1r1R/bPp4B/K1R1N1b1/2b3P1/3pn2B/1rr2RB1/4Bpq1/2kBQ1n1 w - - 0 1 illegal: No proof kernel
3Bb1r1/NqR1RnbQ/1b4r1/1K1N1Bk1/p1NP2P1/qN4qn/2pR2p1/3N4 w - - 0 1 illegal: No proof kernel
1r6/RQq5/3q1p1N/2pPRPk1/3K1p1n/bbB1r3/q5n1/RRRN1nBB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 Qe7 f5 Qd7 Qa4 Qd8 Qf4 exf4 e4 Ke7 Ke2 Kf6 Kd3 h5 g4 a5 b4 h3 b6 h4 e5+ Kg5 b5 h2 b7 h3 e6 c6 b6 a4 e7 a3 e8R f6 d6 a2 d7 Na6 b8Q Bc5 b7 Bf8 Nc3 Qc7 d8B Rh4 Kd4 Rh7 Bg2 Be7 Bb2 Nc5 Nd1 Nd3 Bc3 Ba3 Re5 Ne1 d3 Be6 Nf3+ Kh6 Rc1 a1Q Ng5 Qa2 Rf1 Rg7 Bh1 Ne7 Qc8 Ng6 b8R Rg8 Rbb1 Bb3 Qb7 Nh4 Rg1 Neg2 Nf7+ Kg7 g5 Re8 Be7 Rab8 Bc5 Re7 g6 Re6 Nh8 Kh6 Nf7+ Kh5 Nh6 Kg5 g7 Qd6+ Rd5 Re3 g8R+ Kh5 Ra1 Re1 Rcb1 Qf8 Nf2 Re6 Qh7 Ree8 Rg7 Re3 Rgc1 Qc2 Ra7 Qd1 Re5 Qd2 Ng8+ Kg5 Nd1 Rg3 Ke4 Qd6 d4 Qa2 d5 Ng6 Bf2 Re3+ Kd4 Ne1 Bg2 h1N Bf1 h2 Be2 Ng3 Bf1 h1Q Qb7 Qh7 Bh3 Nh4 Bg1 Qhc7 Bg2 Nf1 Bh1 Neg2 Nh6 c5#
N1BN2k1/1nR3qn/3rp2p/1KPN4/q2N4/Pb3rN1/nbQ1B1pR/Bq6 w - - 0 1 illegal: No proof kernel
6N1/Bq2b2N/rrp1Q2R/N1R2KpN/1b1q1pBn/b2BP1N1/2P1r3/1k3n2 w - - 0 1 legal: proof: g4 b5 a4 e5 axb5 h5 d4 hxg4 f3 exd4 Nh3 Bb7 Ng1 Be4 fxe4 Ba3 Bd2 Bc5 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 b4 Ke5 h4 f5 b6 g5 h5 d5 b7 a5 h6 a4 h7 a3 b5 f4 b6 g3 Be3 g2 Nh3 g1B Nc3 a2 Nf2 Nd7 b8N Be7 b7 Ndf6 Qe1 Qd7 Rh6 Ng4 Nh1 Nh2 Ng3 Ra6 Nh5 Ba3 Rb1 a1B Rb5 Ne7 Rc5 Re8 h8N Nf5 Bf2 Nh4 Ng6+ Ke6 Ne7+ Ke5 Bh3 Nf1 Bg4 Bb4 Ng8 Bb2 Be3 B2a3 Bf2 Ree6 Nc6+ Kd6 Nce7 Ke5 b8N Reb6 Ngf6 Qc6 Neg8 Qb7 Bg3 Be3 Bf2 Bec1 Nh7 Bd2 Rcc6 Bf8 Rc5 Be7 Nd1 Bdb4 Ne3 Ra7 Nf5 c6 Nfg3 Ra5 Na6 Ra4 Rc3 Ra5 Nc5 Raa6 Nb3 Ne3 Kd2 d3 Na5 Kd4 e5 Qc8 e6 Qa8 Bg1 Qb7 Bh2 Nf1+ Kd1 d2 Rc5 Bf8 e7 Ke3 e8B Be7 Bg6 Kd4 Nc4 Kc3 Bg1 d4 Na5+ Kb2 Bd3 Ka2 Qf2 Kb2 Qe3 Kb1 Qe6 Qa7 Bf2 Qb7 Be1 Qa7 e3 Qb7 Ke2 d1R Bc3 Re1+ Kf2 Nf3 Kg2 Re2+ Kh3 Nh4 Bg6 d3 Bd4 d2 Bd3 d1Q Rd5 Rb5 Ba7 Rbb6 Rc5 Rf2 Bge2 Qe1 Kg4 Qc3 Bf3 Qd4 Bd1 Ng6 Kf5 Rd2 Bf3 Re2 Bg4 Nh4#
N3Q3/Bbr2Rq1/1p1k2r1/B1rB4/1pR4N/P1PpnR1q/7K/bBBn3b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 g4 h5 f4 e5 Kf2 Ke7 Kg2 d3 f6+ Ke6 f7 e4 f5+ Ke5 f6 d2 g6 h4 g7 e3 g5 e2 a3 e1Q g6 h3+ Kh2 Qe3 Qe2 d1R Nd2 Rh7 Ngf3+ Kd6 Nh4 Nh6 g8R Qde7 g7 Na6 Rb1 Q3e6 Rb3 Nf5 Rf3 Nc7 Qe1 Ne3 Bd3 Qg4 Rhf1 Ra6 Bg6 Ncd5 Nc4+ Ke6 Nb6 Kd6 Qe2 Nc3 Na8 Rd5 Rh8 Re5 g8B Bg7 f8B Rc5 Bd5 Ncd1 f7 Ba1 c3 Rg7 Rh5 Rac6 Bd3 Rg6 Bb1 Rc7 Re5 Qh5 Re4 Qg4 Rc4 Qf5 Kh1 h2 Bh6 Qh3 f8B R5c6 Bg5 Rc5 Bfh6 Qg7 Bd8 R7c6 Ba5 Rc7 Rf7 b6 R1f3 Ng4 Qe8 Nge3 Be6 Bb7 Bf4+ Kc6 Qg8 d5 Qe8+ Rd7 Be5 d4 Bb8 d3 Ba7 Kd6 Bd5 Rdc7 Rf1 Qd7 R1f3 Ng4 Kg2 h1B+ Kh3 Nge3+ Kh2 Qh3+
NRr2b1R/2Nn4/P2B1n1R/nPr2NRb/1kb1ppq1/1B3p2/Kq4Q1/7R w - - 0 1 illegal: No proof kernel
R1BN3q/3nqR2/PN1p2nB/3rB2k/pb1r4/RQ1p4/2KPR1q1/b3R1b1 w - - 0 1 illegal: No possible last move, all moves rejected
2R1q2k/N6r/p1RbB3/R2B1pqP/5rbn/P1R2N2/1n2qpB1/1Q2bRK1 w - - 0 1 illegal: No possible last move, all moves rejected
1q2nbR1/BQq1k2p/1prRn3/q2R4/pPn5/bRR5/PN3K2/1r1B1NN1 w - - 0 1 legal: proof: f4 e5 c4 exf4 g3 d5 cxd5 Qe7 Qc2 Qg5 Qd1 Qd8 h3 fxg3 Rh2 g5 Rh1 g2 Qc2 g4 Qb3 g3 Qd1 Bg4 hxg4 Bd6 Rh3 Bc5 Rh1 Bf8 d4 a5 b4 f5 e4 c5 e5 c4 g5 f4 e6 c3 d6 f3 d7+ Ke7 g6 a4 g7 c2 d5 Ra5 Rh3 Qc7 d8R Rc5 Rd6 Nd7 Be3 c1B Nd2 Ba3 Rb1 Rc6 Ba7 b6 Rb3 Nc5 Be2 Nf6 g8R Ne8 Nf1 Qb8 Qa1 Qc7 Bd1 f2+ Ke2 Qb8 Qd4 Qc7 Qe4 Qb8 Nd2 f1N Qf3 Ne3 Nf1 Nc4 Qe4 Kf6 e7+ Ne6 Ke1 Ng7 e8N+ Ke7 Nf6 Ne8 Nh5 Qc7 Nf4 Qb8 Nd3 Qc7 Nf3 g1Q Nb2 Qh2 Ng1 g2 Kf2 Qb8 Rhc3 Qh5 Rg6 Rg8 Rgg3 Rg4 Qf3 Rh4 Rg8 Rh1 Qh3 Nf4 Qc8 Qf5 Qc7+ Qd7 Qb7 Qdc7 Rh6 Ne6 d6+ Kf7 d7 Ke7 Nf3 Rg1 d8R Rh1 Rd5 g1Q+ Ke1 Qc5 Ng1 Qa5 Rhg6 Nd8 Rgd6 Ne6 Kf2 Rh5 Nd2 Re5 Nf1 Re1 Bf3 Ra1 Bd1 Rb1
1B4r1/r3q1pR/QN1b1Rb1/1r1q3B/P3p3/k1BPbN2/np2Kn1B/5RB1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 a4 Kd6 h4 Kc5 d6 b5 d7 e5 f6 b3 h5 Kb4 f7 c5 h6 g3 h7 c4 f5 g2 f6 e4 Bb2 c3 Ke2 c2 Na3 c1B Nc4 Qe7 d8B Ra5 Nb6 Ra7 Bc7 Bf5 Bh2 Na6 Nf3 g1Q d3 Bh6 Qc1 Be3 Qc8 Nh6 Bbe5 b2 Bb8 Rg8 h8R b1R Rh7 Kb3 Bg2 Qc1 Rf1 Nb4 Qa6 Qcc5 Bh3 Qc6 Bg4 Bg6 Bh5 Ng4 Ra2 Qcc5 Rc2 Qd5 Rc6 Nf2 Re6 Qc7 Rc6 Bfc5 f8B Bd6 f7 Ka3 Be7 Qd8 f8B Na2 Bf6 b4 Bc3 b3 Be7 Qc7 Bef6 Qe7 Bfd4 Be5 Rf6 Bd6 Rh8 b2 Rh7 Rc1 Bd2 Rc5 B2c3 Bc1 Be3 Rb5 Bed4 Nd1 Bf2 Be3 Bfg1 Nf2
n3R1r1/1rQ1P1qq/2p1qNRb/NRK2kPB/5p1p/2BbnR2/4RB1b/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 f5 g4 h5 d4 a5 e4 c6 e5 a4 g5 h3 e6+ Kd6 b6 f3 Ke3 f2 e7 h2 b7 h4 b5 a3 b6 a2 Nc3 Ra3 Be2 f1Q Nf3 Bh6 Ne5 Qg2 Rf1 h1Q Nc4+ Kd7 d6 Ke6 d5+ Kd7 Kd4 f4 Kc5 Qhh3 Rf3 Qhh2 Bd2 Qhh3 Ne4 Qgh1 Bc3 Qf8 Na5 Qg7 Qd2 Q1g2 Re1 a1B Bd1 Qf5 Re2 Qgg4 Qd4 Nf6 Qe5 Ke8 d7+ Kf7 d8B Kg6 d6 Rg8 d7 Rb3 Bc7 Nd5 d8R Ne3 Nf6 Qc2 Rd6 Bf5 Re6 Bd3 Qd6 Kf5 Qd7 Nd5 Be5 Rb1 Bd4 Ne3 Qc7 Na6+ Kd6 Rb3 b8R Rb5 b7 Nf1 Be1 Nd2 Rff2 Nf1 Nh5 Be4 Qd7 Nc7 Rd2 Qf3 Re8 Qe2 b8R Na8 Qc7 Kg4 Rd3 Rb3 Rb4 Bc3 Kc5 Bd2+ Bc3 Be3+ Rbd4 Rb7 Rd6 Bc1 Rb4 Qb1 Rb5 Be3+ Bd4 Bh7 Bc3 Bf5 Rh2 Bg1 Rf2 Bh2 Rf6 Qf3 Rfd2 Qa2 Bf2 Qe6 Re3 Bd3 Ra2 Qe4 Rd6 Qeh7 Rg6 Kf5 Nf6 Qe4 Bh5 Qe6 Rf3 Ne3 Rd2 Nd1 Re2 Ne3
1n1r2B1/2N1pn2/6BQ/R3N3/1k2NBpK/pNb1r1P1/3NPb1n/Rq2q2b w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 Na3 f4 Nb1 Qb6 Be3 Qg6 Bc1 Qg3 hxg3 f3 Ra5 fxg2 Ra3 Kf7 Ra1 Ke8 b4 a5 c4 h5 f4 g5 Kf2 d5 c5 Kd7 c6+ Kd6 b6 a4 b5 Kc5 f5 h4 b7 d3 c7 d4 f6 a3 b6 d2 f7 h3 Kf3 h2 Nc3 d3 Ne4+ Kb5 Qe1 d1Q Qd2 Bd7 c8B Nc6 b8N Nh6 b7 Ra4 Na6 Bh3 b8N Bg7 f8N Bc3 Nac5 Nf7 Bf5 Qe1 Ng6 Kb4 Ne5 Rd8 Bg6 g4+ Kf4 Ra5 Ngf3 g1B Nb3 Bf2 Bg2 Rad5 Rf1 h1Q Qe3 R5d6 Nfd2 Re6 Bf3 Bg2 Na6+ Kb5 Kf5 Nb8 Nc7+ Kb4 Qh6 Qg1 Kf4 Bh1 Kf5 Be3 Rf2 Bb6 Rh2 Bf2 Rh5 Qgf1 Nf6 Qg1 Bd5 Qgf1 Nfe4 Qg1 Nb1 d2 Rg5 d1N N1d2 Ne3+ Kf4 Qgf1 Rf5 Nh8 Kg5 Nf7+ Kh4 Qg1 Ndf3 Nf1 Bf4 Nh2 Nfd2 Red6 Be6 Rd3 Bc4 Re3 Rh5 Ng5 Bg8 Qb1 Nef3 Nf7 Ra5 Qgc1 Ne5 Qe1
6r1/br1qp2Q/1n1npk2/BN1Bp1q1/R1rB4/2B2Pn1/N6P/1b1NR1BK w - - 0 1 illegal: No proof kernel
qRRB2KQ/r3pP2/1Pqpn2N/rb6/p4b1n/BB1k2q1/RB1N2B1/5n2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 b4 h5 g4 a5 f6 h3 f5 h4 g5 d3 f7 d6 g6 h2 g7 a4 b6 d2 f6 h3 b5 Nh6 g8B Ra6 b7 Rh7 b6 Ng4 Nf3 Nd7 b8B Rh6 Nh4 Nc5 Ba3 Bb7 Nf5 Qd7 Bc7 Nf2 Qh5 d1Q Ra2 Qf3 Bg2 Bc6 Bd8 Nd1 c3 Rh8 Nh6 Ra5 Nd2+ Ke3 Rf1 h1N Qh4 Bg7 f8B Qg3 Be6 Bb5+ Kd5 h2 c4 Kd3 Qh5 Ne4 c5 Ng5 c6 Rg8 Bf7 Ne6 c7 Ra7 c8R Qc7 Ng4 Bh6 Bg7 Bf4 Qh8 Qb8 Nh6 Qa8+ Rc6 Nhf2 Rg1 h1Q Rf1 Ng4 Rg1 Rb7 Rc8 Ne5 Rb8 Ng6 Re1 Nf2 Rc1 Ng4 Rcc8 Re8 Bg8 Nh4 Bf7 Nh2 Bg8 Ng5 Be6 Nf1 Bf7 Nh7 Ke6 Ra7 Bg8 Nf8+ Kf7 Qg4 Bh7+ Qg6+ Kg8 Ra5 f7 Qc6 Ne4 Qg3 Bf5 Ra7 Be6 Ra5 Bb3 Ne6+ Kh7 Qa8 Bgb2 Rg8 Nd2 Rg5 Bh3 Qhc6 Bg2 Ra7 Qg7 Bc4 Kh8 Rga5 Kg8 Ng6 Qf6 Bb5 Qh8 Nh4+
1nq2q2/kPBqbN2/1p5r/1RQp3n/1B2K1B1/n2N1B1p/B1RPb1Rr/8 w - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 e4 g5 h4 gxh4 b6 f5 exf5 cxb6 Ke2 e5 Kf3 h5 g4 a5 c4 h3 c5 h4 c6 h2 c7 h3 g5 a4 f6 a3 g6 a2 f7+ Ke7 g7 Kd6 Nc3 Kc6 Ba3 Qe8 Bg2 Bd6 f8R Ne7 g8B Nd5 Qc1 Nf4 Bb4 Rh6 Rb1 a1Q Na2+ Qc3+ Ke4 Be7 Nf3 Kb5 Ng5 Ka6 Nf7 Nh5 f4 Ka7 Rg1 h1Q f5 d6 f6 Qh2 Bf3 Qf2 Rg2 Bg4 c8B Qd7 Rb2 Qcc7 Qc5 Qf1 Nc1 Qf2 Kd5 e4 Nd3 e3 Ke4 e2 Rc2 e1N Re8 Bf8 Re5 Be7 Qe3 Qcd8 Rb5 Qf8 Qg5 Qc5 Qe3 Qcc7 Qc5 Qcd8 Nfe5 Qd8e8 Ba2 Qed8 f7 Q8c7 Rc3 Nc2 Rc4 Na3 Rc2 Qde8 Bce6 Qed7 Bf5 Qcc8 Bfe6 Qg8 f8B Qh8 Nf7 Qg7 Bd1 Be2 Bg4 Qh8 Bg7 Qhf8 Bf3 Rg6 Bf6 Rg5 Rg1 Rg2 Bg4 Rh2 Rg2 Bf1 Bdf3 Be2 Bh4 Qg8 Nf2 Qcc7 Bb1 Bg5 Rg3 Nc6 Kd5 Qg7 Ke4 Rh8 Rg2 Qcc8 Ba2 Qgf8 Nd3 Rh6 Qd5 Nb8 Qc5 Be3 Bf6 Bg5 Bd8 Be7 Bc7 d5+
nQ1R4/BpNr1qnR/3r1N2/2NPbp1N/4rbB1/3P2B1/p4K1N/1b1q3k w - - 0 1 illegal: No proof kernel
n1RKqBBR/P7/5B1Q/1N1pr1R1/4n1bR/b3rR1p/q2Pq2p/N4b1k w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 cxb5 axb4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 a4 h5 g4 b3 g5 b2 a5 h3 f6 h4 b6 h2 g6 c6 f7 Ra7 b7 Nf6 g7 Qe8 Kb6 e5 Kc7 e4 g8R c5 a6 e3 Ra5 c4 Qh5 c3 Bc4 e2 Rag5 e1Q Na3 b1B Nb5 c2 Nf3 Q1e2 Nfd4 Ba3 f8B Ne4 Nb3 d6 f3 Bg4 Na1 Kg3 f4 Kg2 f5 Nd7 f6 Nb6 f7 Rh6 Ba2 Re6 Bb2 Re5 Qh6 Ra8 b8R h3 Rc8 Rb8 a7 c1Q+ Bc4 Ra8 Rf1 Qc2 Rf4 Kh1 Rh8 Rb8 Bc3 Qa2 Be6 d5 Bd4 Bf5 Rh4 Bd3 Bb2 Bg4 Bc3 Qc6+ Kd8 Na8 Bb2 Rf5 Bf6 Re5 Bf5 Rb7 Bh7 Rbe7 Bg8 Qd1 B8g7 Bf1 f8R Qe2 Rf7 Rb7 Bf8 Rb6 Nd6 Rb3 Nb5 Rg3 B6e7 Rc3 Rf3 Re3 Bf6 Qe8#
2NBN3/p2Rr2n/n1qb1Q1r/1kP2B2/NPq1b2q/8/R1bp1N1p/B2N2K1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 h5 f4 e5 Kf2 d5 b4 Kd7 g4 d3 c5 d4 g5 d2 g6 h3 g7 h4 f6 e4 b6 Kc6 f5 d3 b7 h2 f7 Bd6 f8N Nf6 g8N Ne8 f6 Kb5 f7 Qc7 Ng6 Na6 f8N Be5 b8B Kc6 Bh3 Be6 Ra2 Nf6 Qf3 d1Q N6e7+ Kb5 Nd7 d2 Bb2 Rh6 Ba1 Bf5 Nb6 Qb3 Na4 Qc4 Nc8 Nh7 Nf6 Qc6 Bc7 Bd6 Ne8 e3+ Kg2 e2 Bd8 Be4 Bf5 e1Q Nh3 Bc2 Nf2 Qe7 Re1 h1B+ Kg1 h3 Qc3 Qee4 Qf6 Qh4 Re7 Bhe4 Rd7 Rb8 Nb2 Rb7 Nbd1 Q6d5 Rg7 Re7 Nbc3+ Kc6 Na4 Kb5 Rf7 Qc6 Rg7 Re5 Rc7 Re7 Rd7 h2#
2nbb2Q/b3p2p/kB1p4/N1RR2BP/3Pb1rb/1K1n1N2/N3Nqr1/6NB w - - 0 1 legal: proof: e4 g5 b4 f5 a4 fxe4 f4 b5 axb5 c5 bxc5 gxf4 g4 a5 h4 d6 c4 Kd7 g5 Kc7 g6 Kb7 h5 e3 b6 e2 c6+ Ka6 b7 f3 c5 a4 c7 a3 g7 a2 c6 Kb5 Nc3+ Kb6 Bg2 Nd7 b8B Nc5 Ba7+ Ka6 Bb6 Bg4 c8N Ne4 c7 Nc5 Na7 Bf5 c8N Be4 Nc6 Nf6 g8N Nfd7 Nh6 Rg8 Na5 Bg7 Nf5 Bf6 Ng3 Qf8 Na7 Rg4 Nab5 Bh4 Nd4 Rc8 d3 f2+ Kd2 e1B+ Kc2 f1B Ng3e2 Qf2 Ndf3 Rcg8 Bg5 Rg7 Rb1 a1B Na2 Bd4 Rb5 Rg6 Qa1 Rg8 Bd8 Nb6 Rh3 Bd2 Bh1 Nc8 Bb6 Bg2 Qb2 Bg6 Qc3 Be8 Kb2 B4e3 Qh8 Be1 Nd2 Be4 Ndf3 Nb3 Rc5 Nc1 Rd5 Bc5 d4 Nd3+ Kb3 Rg2 Bd8 Ba7 Bb6 Rg6 Rg3 Bd2 Bf4 Bc3 Rgg5 Bb4 Rgf5 R6g4 Bg5 Bc5 Bd8 Bcb6 Rc5 Bc7 Rfd5 Bcb8 Bb6 Bc7 Rc1 Bd8 Rc6 Nb2 Rcc5 Nd3
rk2b2N/p3prB1/2n1P3/R1NB4/1K1pN2B/B3r1rB/4q2P/bR1Q2nr w - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 axb5 cxd4 g4 g5 fxg5 hxg4 Kd2 d5 b4 Kd7 e4 Kc7 c4 f5 c5 f4 g6 f3 b6+ Kb7 b5 d3 Kc3 f2 g7 g3 e5 d4+ Kb4 d2 Nh3 g2 Nc3 g1R Ne4 Bf5 c6+ Kc8 b7+ Kc7 Ba3 Rg3 Nhg5 Bd7 Bh3 f1R Nc5 Nf6 g8B Ne4 Bd5 Qc8 e6 Bh6 Nf7 Nf2 Ra2 Rf8 Nh8 Rf7 Ra1 Re1 b6+ Kd8 Rg1 Be8 Rf1 Ree3 Rg1 Nd7 b8B Qa6 b7 Qe2 Be5 Nb8 Bg7 Kc7 Re1 Ne4 Rf1 Ng5 Rf5 Nf3 Rb1 Ng1 Rh5 Nd7 b8B+ Kc8 Bbe5 Nb8 c7 Bg5 Bef6 Nc6+ Ka4 Bf4 Bh4 Bd6 Nb7 Bb4 Nc5 Bc3 Rf5 Ba1 Rg5 Nd8+ Kb4 Bc6 Nd3 Kb7 c8N Kb8 Nc5 Bd7 Nd6 Be8 Qe1 d1R Nde4 Rc1 Qd1 Nc6+ Ka4+ Qb2 Qe1 Rd3 Nd7+ Kb7 Bb3 Ne2 Ra5 Rde3 Ndc5+ Kb8 Bd5 Rd1 Qd2 Rh1 Qd1 Ng1 Nb3 Nd8+ Kb4 Qe2 Nbc5 Nc6+
b1Q1NB2/2N2B1B/n2Nrb1q/1R1R1Pb1/p1Pr2k1/np6/pKb2BB1/2n5 w - - 0 1 illegal: No proof kernel
1b4r1/1N3n1R/1Br1N1B1/2bBQpB1/P2Rnq2/1b1b4/pRBPprk1/K7 w - - 0 1 illegal: No proof kernel
1Q4b1/4bnqk/R2B4/1P5n/R2R2B1/pP1N1nR1/1pBbrpNK/5rRb w - - 0 1 illegal: No proof kernel
6B1/bN1bNN1Q/2RpPnP1/2r1pNRr/2k4b/1N3Krp/n1Bq3B/1b6 w - - 0 1 illegal: No proof kernel
nn1QB2k/N1B1R1p1/1prbR3/2b3B1/q2Nnp2/1K1BB1P1/r3nP2/1N2r3 w - - 0 1 legal: proof: d4 a5 b4 axb4 c4 d5 cxd5 Kd7 e4 Nh6 d6 Kc6 d7 Ng8 d5+ Kd6 g3 Ke5 Bd2 h5 Qf3 b6 Qg2 h4 Be3 h3 Bc1 Bb7 d6 Bd5 exd5 hxg2 Ke2 Kf5 Ke1 Kf6 Kd1 e5 Kc2 c5 a4 e4 h4 e3 a5 e2 a6 e1R a7 c4 h5 c3 h6 Ne7 h7 Kg6 Nf3 g1N Kb3 f5 Nd4 f4 Be3 Qe8 d8B c2 d7 c1B d6 Nd5 Bc7 Ne2 d8B Ba3 d7 Bd6 Bg5 Qe4 Rh2 Rc8 d8N Qe8 h8Q Qa4+ Ka2 Bc5 N8c6 Kf7 Rh6 Bd6 Bcd8 Nc7 Re6 Bc5 Re7+ Kg6 Qe8+ Kh7 Qd7 Kh8 Re6 Ng1 Bd3 Ne2 Qd5 Qb5 Kb3 Qa5 Kc4 b3 Ra2 b2 Kb3 Qa6 Qd7 Bab4 Ra5 Bd6 Rae5 Bbc5 Re7 Nc3 R5e6 Ne4 Na3 b1N Qe8+ Kh7 Qd7 Nc3 Nb1 Ne8 Bc7 Ne2 Qd8 Kg8 Nb5 Kh8 Ncd4 Nd7 Bb8 Rc6 Bc7 Qa4+ Kb2 Rb8 a8B Rc8 Bb7 Ra8 Bc8 Nb8 Bd7 Qa1+ Kb3 Ra2 Na7 Rc2 Qc8 Ra2 Bd8 Nc7 Be8 Na8 Bc7 Rd2 Qd8 Qa6 Nab5 Ra2 Na7 Qa4#
NRN1r1R1/2q1pN1b/5kPr/N3bnR1/8/BN2pQKP/1n2b1p1/2r2b1B w - - 0 1 illegal: No possible last move
Bk6/1BbbpPnn/2K5/2B2R1N/r2brp2/3r2qp/1Q4PN/2BB1bNR w - - 0 1 illegal: No proof kernel
NR3Brk/1rp5/1Nb1np2/3R2bP/n1KB2RP/1bQR4/1rB2R1p/2q4b w - - 0 1 illegal: No possible last move, all moves rejected
2rk2nB/1qpn1r1P/n4b2/1KRPQb2/4r3/RNr4p/2p3R1/1RBRNB2 w - - 0 1 illegal: No proof kernel
1bkB3n/bp2P3/N3nRpN/2N1R3/2B1N1Kr/n2N1R2/Qp1Pr3/n3qb2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 f5 h4 c5 e4 g6 a4 c4 e5 c3 a5 c2 d6 b3 a6 Bh6 e6+ Ke8 a7 Na6 d7+ Ke7 Ne2 Qe8 d8N Nc5 Bb2 c1B Qc2 Rb8 Bc3 Ba3 Qa2 b2 a8N Bf8 Rg1 Nh6 Nc1 Nf7 h6 Bd7 h7 Bb5 h5 Bh6 Bh3 Bf1 Nd3 Bg7 h6 Be5 Rg3 Rc8 Nf2 Bb8 Nc7 Ba7 Nd3 Kd6 Kf2 f3 Bf6 f4 Na6 Rc7 Bh4 Re7 Nc3 Bb4 Rd1 Ba5 Bf6 Bc7 Re1 Bcb8 Re3 Rg8 Re4 Nh8 Re5 Rf8 Bg5 Rf5 Bf6 Rh5 Bf5 Rh4 Be4 Qa4 Bd5 Qd1 Bc4 Qa1 Nf7+ Kc6 Na4 Re8 Ng5 Qe1+ Kg1 Kd6 Bd8 Re7 Rh3 f2+ Kh2 f3 Kg3 Re8 Ne4+ Kc6 Bf6 Re7 Nab4+ Kc7 Na6+ Kc8 Bg5 Rd7 Bd8 Rd4 e7 Ne6 Ndb4 Rd3 Na4c5 Re3 Nbd3 Nf7 h8R Re2 Rg8 Nh8 h7 Bg2 Kh2 f1N+ Kg1 Ne3+ Kh2 f2 Kg3 Bf1 Rf8 Nc2 Rf6 Rh5 Kg4 Na3 Rhf3 Rh4+ Kg3 Bh3 R3f5 f1N+ Kf3 Nf7 h8N Ne3 Rf4 Bf1 R4f5 Nd6 Nf7 Nec2 Nh6 Nf7 Rf4 Nh8 R4f5 Rhh2 Kg4 Na1 Rf3 Rh4#
k1b3n1/pb3b1N/1n1pPR2/PB2n1r1/1r2B1p1/4NQ2/N1q1b1N1/1RB1N2K w - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 f5 h4 g5 Qd3 Be7 Qd1 fxg4 Bb2 g3 Ba3 g4 Bc1 Bg5 hxg5 Qf6 Rh5 Qb6 Rh1 Qd8 a4 h5 f4 b5 e4 b4 c4 b3 g6 b2 e5 d6 c6 h4 g7 h3 c5 h2 f5 g2 Kf2 d3 a5 d2 f6 Rh4 e6 Rh5 c7 Rg5 f7+ Ke7 f8N Bb7 c8B Ke8 c6 Na6 c7 Bc6 Qf3 d1B Bb7 Nb8 c8N Bd7 Ne7 Be2 Nc3 b1B Be4 Bc8 Na2 Nd7 Nfg6 Nb6 Nd5 Qc7 Ne3 Kd8 Nf4 Rb8 Kg3 Bbd3 Rb1 Qc2 Kf2 Kc7 Kg3 Nh6 g8N Rb7 Kf2 Kb8 Nf6 Ka8 Nh7 Ng8 Kg3 Bb5 Kf2 Be8 Kg3 Ba6 Bb5 Bh5 Nge2 g1N Kg2 Bf7 Nd3 Qc5 Nef4 Qc2+ Qe2 Nf3 Rf1 Ne5 Ne1 h1B+ Kh2 Bg2 Qf3 Bh1+ Rf2 Bg2 Kg1 Bf1 Nfg2 Be2 Kh1 Nd5 Be8 Rb4 Bb5 Bab7 Qg3 Nc7 Rf6 Nd5 Qf3 Nb6
qb1k2b1/1r1rN1NB/3q1PN1/3QN2K/5BRp/3P1pr1/3prN1R/n1Rn4 w - - 0 1 illegal: No proof kernel
3n4/KNnr1P2/6R1/1Bq1BNp1/N1pBN3/1k2nRP1/N2n1Qrp/4q1bb w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Qd6 Bd3 Qh6 Bf1 Qxh2 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 g5 f5 c6 f6 e6 g3 h4 f7 a4 b6 h3 b7 a3 b5 a2 b6 e3 Nc3 e2 Nf3 e1Q Ne4+ Kd7 d6 e5+ Kc5 Ke6 d4 Qg2 Bb5 h2 Qe2 Ne7 d7 Qgf2 Rf1 Rg8 Rb1 a1N Be3 Nc2 Nh4 Ra2 Nf5 Rb2 d8B Nd5+ Be7 Ra2 Bd6 Nc7 Rb2 Qg1 Rf3 Rh8 Bf2 Ne3 Rb4 Bg7 Ra4 Rd8 Ra6 Rd7 Qf1 Nc4 Be3 Rg2 Qe2 Nd2 Qf2 Rd8 d5+ Kd7 Nc3 e4 Bd4 e3 B6e5 e2 d6 Ke6 d7 Bh8 Na2 Bg7 Kb4 Kd5 Ka4 c5 Ka5 Rg8 d8N Nc6+ Ka4 c4 b8N Bb7 Nd7 Ba8 Nb7 Rd8 Ndc5 Rd7 Ne4 Nd8 Ka5 Bf8 Qf1 Qe3 Qf2 Bc5 Nbd6 Bc6 b7 Ba7 b8N Ba8 Nc5 Qa3+ Na4 Qc5 Nb7 Ke4 Be3 Kd3 Rg6 Kc2 Na6 Kb3 B3d4+ Kc2 Bc3 Kb3 Bed4 Qf1 Be5 e1N Bed4 Nc2 Be5 Qc6 Bcd4+ Ne3 N6c5+ Ka3 N2c3 Qe1 N5e4 Qc5 Na2 Kb3 Bb2 Na6 Nbd6 Qa1 Qf1 Qe1 Rf2 Nc7 Nec3 Rg1 Rf4 Bd5 Nb7 Bh1 Ne4 Nc2 Rf3+ Qce3 Qe2 Rg2 Bbc3 Nce6 Ka6 Qd4 Qf1 Qd5 Qe2 Bg1 Bcd4+ Ne3 Qf2 Nc7+ Ka7 Qc5+
1N1N1qN1/3n3q/1R1BPp2/3kbpN1/1rnb1P2/Kp3qB1/1nB4R/3b1NQ1 w - - 0 1 illegal: No proof kernel
bQ1Rn2b/5k1q/3pn1R1/1B3Pq1/2q1R1nb/R4pp1/RBN2P2/B1K1N2r w - - 0 1 legal: proof: e4 c5 g4 h5 d4 hxg4 a4 cxd4 Bg5 b5 Bc4 f5 Bc1 f4 Bf1 a5 axb5 Ra6 Nd2 Rf6 Nb1 Rf5 exf5 Rh7 Nc3 Rh4 Nb1 Rh8 Kd2 e5 h4 g5 b4 d6 c4 e4 b6 f3 b5 a4 c5 d3 c6 a3 b7 a2 h5 g3 b6 g4 c7 g2 h6 g3 h7 Kf7 Rh6 Nf6 Ne2 g1Q Na3 Qh1 Nd4 Nc6 b8R Be7 b7 Ne8 Ndc2 Bh4 Ne1 Nd4 Qb3+ Ne6 Bb2 e3+ Kc1 e2 Nac2 Qf6 Rg6 Qg5+ Ne3 Bd7 c8R Bc6 Rd8 Qh3 Ra8 d2+ Kc2 d1N b8R Qhg4 Ra3 Ba8 Kc1 Qe4 Rb4 Qc4+ Nc2 e1Q Rba4 Qgf4 Qb8 Qg5 Rb4 Qee2 Rba4 Qc7 Re4 Qec4 Be2 Qge7 Ng2 Ne3 Ne1 Ng4 Rb1 a1B Ra2 Rg8 h8B Qcd7 Bhd4 Rh8 Bf6 Qc3 Bb5 Qc4 Bbc3 Qdc7 Rb3 Rh5 Bfd4 Rh6 Bb2 Qg5+ Rbe3 Kf8 Bbc3 Qh7 Bd2 Kf7 Rea3 Rh5 Ba7 Bh8 Bd4 Qf4 Bc3 Bg5 Ba1 Rh1 Be3 Bh4 Bd2 Ne3 Bdc3 Qg5 Bcb2 Ng4+
r3q3/1r1B1n2/3B2n1/p4rBP/P3B2N/1R1rpB2/QR2rp1n/KN1kb2R w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 h5 Qf3 hxg4 Qe2 Qd7 Qd1 Qd8 f3 e5 Kf2 e3+ Kg2 e2 Nc3 e4 Nb1 e3 Nh3 Bf5 Ng1 Be4 fxe4 Qg5 Qe1 Qf6 Qd1 Qd8 a4 Ke7 h4 Kf6 d4 e1R c4 g5 h5 a5 e5+ Kf5 c6 Kf4 d5 f5 d6 b5 c5 b4 d7 g3 c7 g4 c8B b3 e6 b2 c6 Ne7 c7 Qe8 d8B Ng6 e7 Nc6 Qd2 Nce5 Bd7 Nf7 Bd3 Re2+ Kf1 Rg8 Nf3 g2+ Kg1 Kg3 c8R f4 Nh4 f3 Ra2 Bg7 Rc5 Bc3 Rb5 Rf8 Be4 Kf4 Qd5 Be1 Rb3 Kg3 Bd2 Kf4 Bb4 f2+ Kh2 g1N Kg2 g3 Kf1 Nf3 Bd6+ N7e5 Qg8 Rf5 Qe6 Kg4 Qd5 Nf7 Qc4 Qg8 e8B Qf8 Bg5 Qh8 Na3 b1R Rab2 Rd1 Bdc6 Rd3 Bed7 Qe8 Nb1 Rc2 Nd2 g2+ Ke2 g1R Kd1 Nh2 Qd5 Rf1 Bb7 Rc7 Qc4 Rg1 Kc1 Rf1 Bbd5 Rb7 Kb1 Rg1 Ka1 Rf1 Ba3 Kg3 Nb1 Rg1 Nf3 Kg2 Nh4+ Kf1 Nd2+ Ke2 Bd6 Kd1 Nb1 Rd2 Bf3+ Re2 Bde4 Rf1 Rc3 Rg1 Qa2 Rg4 Rcb3 Rgf4 Bec6 Rd4 Bce4 Rd3
2qrN1B1/2rbb1Q1/1rn2prK/BR4R1/kP1rp3/2bN4/p3P1R1/1R2RB2 w - - 0 1 illegal: No possible last move
r1q2RB1/1QNbpp1r/RbN1P2k/5r2/1r3q1B/R6P/2K1n1Rp/RNr5 w - - 0 1 illegal: No proof kernel
4BRKb/BqRpQP1b/q3R1p1/n3RRP1/1pr2bn1/2N3bN/B1k5/n7 w - - 0 1 illegal: No possible last move
Q1nBqb1N/P2p1Nr1/3P3b/5B1k/bRN3pq/K1p3q1/bn3N2/RR1N4 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 hxg4 b3 b5 Na3 b4 Nb1 Ra7 Nc3 Rb7 Nb1 Rb5 cxb5 a4 Qf3 axb3 Qe2 Kf7 Qd1 Ke8 a4 Kf7 d4 g5 Kd2 e5 h4 c5 f4 e4 b6 g3 f6 Kg6 a5 g2 h5+ Kh6 d5 b2 Kc2 c4 d6 g4 b7 e3 f5 Rh7 f7 Ne7 a6 Qa5 a7 Qc7 f6 Ng8 Nc3 b1B+ Kb2 b3 Nh3 g1Q Bd3 Nc6 b8R Bb7 Bf5 Qg3 Qf3 Nge7 Nf2 Qc8 Ncd1 c3+ Ka3 b2 Qd5 Ba8 Rb4 Na5 Qe4 Kg5 h6 Rg7 h7 Qe8 h8N Bc6 Rf1 Ba4 Qa8 Kh5 Re1 e2 Bg5 Nc8 Rf1 Be7 f8N e1B f7 Qh4 Nh7 Ba2 f8N b1Q Nfg6 Qd3 Ne5 Qdg3 Nc4 Bf8 Bd8 Bd2 Ng5 Bf4 Ngf7 Bh6 Qb7 Nc6 Qa8 Ne5 Ndb2 Nd3 Rfb1 Bc6 Nbd1 Nb2 Be4 Bb5 Bf5 Ba4
Q1n1b1bB/2q3P1/1RB2R2/bnnrRR2/1B1p2n1/1K1pNN2/3P1p2/3R2qk w - - 0 1 illegal: No proof kernel
2n1nBR1/R2Rn3/BBQ1r3/NrpR2r1/2Pnpq1R/k1q5/1p1NP3/5K1b w - - 1 2 legal: proof: f4 g5 g4 a5 b4 axb4 fxg5 h5 Bb2 hxg4 Ba3 Rh7 Bc1 Rh8 d4 c6 d5 Bg7 d6 Bd4 Na3 Bb6 Nb1 Bc7 dxc7 Ra6 Qd5 Ra4 Qd1 Ra8 h4 d5 c4 Kd7 a4 Kd6 g6 Kc5 g7 b5 h5 f5 a5 e5 a6 g3 h6 f4 a7 b3 h7 Kb4 Nh3 f3 Nd2 g2 Nf4 g1N Ra5 d4 Ra6 b2 Ra1 b1R Ne6 c5 Ra6 d3 Ne4 d2+ Kf2 Qd4+ Kg3 f2 Kg2 Qc3 Nd4 Nd7 Rd6 Ndf6 Rd7 Ne7 g8R Ne8 Rh4 Bb7 c8R Nf3 Nb3 Nd4 Rcd8 Nc8 Na5 Bd5 Qc2 d1N Bh6 Ka3 Bf8 b4 Qc1+ Rb2 Qh6 b3 Qc6 Rb8 a8R Rb6 Raa7 Ne3+ Kh2 Rb5 Bg2 f1Q Nd2 Qf4+ Kg1 Nef5 Bh1 Bf3 Kf1 Nfe7 Rd5 Ra2 R8d7 b2 Rg6 Rg8 h8B Rb6 Bf6 Rb5 Rg1 Rg5 Bg2 Ng8 Bd8 Nge7 Bb6 e4 Bh3 Rh5 Rg6 Rg5 Rg8 Bh1+ Nf3 Qf7 Nb3+ Kb4 Qf6 Qd2 Ba5+ Ka4 Rdc7 Qc3 Nfd2 Ncd6 Bc8 Ra3 Rd7 Ra2 Bb7 Ndc8 Bd8+ Kb4 Bc7 Ra6 Na5 Rc6 Bb6 Ka3 Ba6 Rd6 Qf4 Qf5 Qf2 Qg4 Qf6 Rc6 Qd6 Qgg3 Qc7 Re6 Qc6 Qf4+
1kbb2B1/5pb1/n2P1N2/1p1KBP2/NQRq2n1/1N3p2/2NR3q/NRq2r1q w - - 0 1 illegal: No proof kernel
N1q1N3/1k2P3/q2Q1N2/K2pqNn1/3RB2n/p1B2pb1/1rBP2b1/n2RN2q w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 a4 g5 h4 gxh4 b6 Ra6 b7 Rg6 b5 Rg5 b6 Rb5 axb5 a4 e4 h5 g4 f5 e5 c5 e6 d5 e7 Kd7 g5 c4 g6 h3 g7 c3 Ne2 f3 Qb3 h4 Bb2 c2 Bg2 c1N Bc3 f2+ Kd1 f1Q+ Kc2 h2 Na3 f4 Be4 h3 Qb4 f3 Qd6+ Ke8 Nd4 Nb3 Rd1 Nf6 g8B Nbd7 b8N Bh6 b7 Bf4 b6 Nh7 Na6 Ng5 b8N Nf8 b7 Bg3 Nf5 Ng6 Bh7 Nh4 Nd7 Na1+ Kb2 Qd3 Nc2 a3+ Ka2 Qd4 b8N Qe5 Nb6 Rf8 Rhe1 h1Q Na8 h2 Nd7 Qf1 Re3 h1Q Ne1 Rf6 Rd3 Rg6 Rd4 Qb5 Qc5 Rb6 Qd6 Qa5 Nf8 Be6 Nd7 Qc8 N6c7+ Kf7 Ne3 Qaa6 Ne8 Bh3 Ndf6 Bg2 Nf5 Nc2 Qb4 Ke6 Kb3 Rb5 Nh5 Kd7 Nhf6+ Kc6 Bg6 Qab7 Ka4 Na1 Bh7 Qb6 Qd6+ Kb7 Bc2 Qbc6 Bg6 Rb2+ Ka5 Nh7 Nfg7 Qc4 Bge4 Ng5 Nf5 Qa6+
3R1Q1q/2r1pnK1/1nP1r3/R1N3RN/1p2BR2/nb2P1r1/1n4p1/1qB1R1Bk w - - 0 1 illegal: No possible last move
kN4q1/p1R1p1P1/B4BBn/qnRbBqrB/3Q3n/4PNq1/1b1K1p2/3R4 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 a4 cxd4 axb5 Na6 g5 Rb8 h5 Rb7 Kd2 Rb6 Ke1 Rg6 hxg6 Qc7 Rh3 Qb6 Rh1 Qd8 b4 f5 c4 d5 e3 Kd7 b6 Kc6 b7 h5 b8R h4 c5 h3 g7 h2 g6 d3 Ne2 f3 Ra4 f2+ Kd2 f4 Nec3 d4 Nd5 f3 Nf6 Rh5 Nd7 Qa5 Be2 f1Q Rb7 Rg5 Bb2 Nh6 g8B Bg7 Bh7 Nc7 Ba1 f2 Bh5 Nb5 Bb2 Bf6 g7 Qg2 B7g6 Qg3 Rf1 h1N Rc7+ Kd5 c6 Bb7 Nb8 Kd6 Kc1 d2+ Kc2 Be5 Qg4 Ba8 Rd1 Bf6 Ra3 Kd5 Rc3 d3+ Kb3 Bd4 Rc5+ Kd6 Ba1 Bb2 Qh4 Qe5 Qg4 Ng3 Qe4 Ngf5 Qd4+ Ke6 Kc4 Nh4 Kb3 Qf5 Kc4 Nc3 b5 Bb7 b6 Nb5 Rh1 d1Q Nd2 Qb1 Nf3 d2 Rd1 Qg4 Kb3 Qg3 Kc4 Qba2+ Kd3 Ba8 b7 Qd5 Na6 Qe4+ Ke2 Qf5 b8B Bb7 Rd7 Ba8 c7 Bb7 c8B Bd5 Rdc7+ Kd6 Rc2 Ng2 Bb7 Nh4 R7c5+ Kd7 Be5 Kd8 Rcc1 Kd7 Nb8+ Kd8 Bc6 Kc8 Bd7+ Kb7 Bc8+ Ka8 Ba6 Be6 Rc7 Bd5 R1c5 Ba2 Qg4 Bc1 Bf6 Bb3 Re1 Ba3 Bae5 d1Q+ Kf1 Be6 Qd4 Qb3 Ke2 Bb2 Rd1 Bg8 Qb4 Qbe6 Kd2 Qc8 Qc3 Bd5 Qb4 Qg8 Qc3 Qa2 Qd4 Qa5+
q5Kn/2Rpr1R1/BB3kr1/pb2RnNP/1q5n/N4p2/r2PR3/1Rn1NQ2 w - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 Bc5 a5 Bb6 axb6 hxg4 Na3 Qe7 Nb1 Qd8 Kf2 Ke7 e4 g5 h4 f5 e5 c5 h5 a5 b7 f3 Ke3 f2 b6 f4+ Ke4 g3 Kf5 c4 Kg6 c3 Kg7 g2 e6 c2 b5 g4 Bb2 c1N Nh3 g1Q Ng5 g3 Bd4 f3 Rh2 g2 Na3 Qe8 Rb1 Nc6 b8R Nd8 b7 Rh6 b6 Nf7 Ba6 Nh8 Qf1 Rg6+ Kh7 Qf8 Be3 Kf6 e7 Qh1 e8R g1R Re5 Nh6 Rg2 Qh4 Rg4 Rg8 Rc4 Nf5 Rc7 Qfb4 Bc5 Rg6 Re2 Rh6+ Kg8 Qhe4 Be3 Nh4 Bc5 Ra7 Ra8 Qc6 b8N Rh7 b7 Re7 Bb6 Qce4 Nc6 Rg4 b8R Rb7 Qg2 f1N Ne5 Ne3 Nd3 Nef5 Qf1 Rg1 Ne1 Rg3 Rc4 Rc7 Ra7 Qa8 Rce4 Rc2 Rc7 Ra2 Rg4 Bb7 Rd8 Bc6 Re8 Bb5 Re5 Rf7 Re2 Qc6 R8e5 Re7 Nh3 Rg2 Rg7 Rg6 Ng5 Qa8+
BN2qbKN/Np5r/q4p1n/1b1n1Q2/4Rn2/B2qP2N/1PR1pB2/q3N2k w - - 0 1 illegal: No proof kernel
4B1b1/Rpp2n1B/1B2q1N1/1K1n2kB/qn2P2b/1Rp1q3/1P1Rr2n/Q3N1B1 w - - 0 1 illegal: No proof kernel
B1r5/p1pb2n1/PNKN2b1/2bP4/2nB1rQ1/4BBN1/1R2pRBk/2nb1b2 w - - 0 1 legal: proof: e4 g5 c4 d5 exd5 b5 f4 gxf4 h4 bxc4 g4 Nd7 g5 Nb8 h5 Qd7 Nf3 Qd6 Ng1 Qg6 hxg6 Ba6 Bd3 Bb7 Bf1 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 a4 e5 b4 h4 d4 c3 b5 f3 b6 f6 a5 c2 g7 h3 a6 f2 b7 h2 g6 Nc6 b8N Be7 Bg2 f1B Na3 Nh6 g8B Be2 g7 Na5 Be3 c1N Rb1 Bd7 Rb2 Nf5 Be6 Bg4 g8B Rh4 Ne2 Nc4 Rf1 h1B Ng3 Ng7 Rff2 Bh5+ Qg4 Bg6+ Bf5 Bf8 Bf3 Bg2 Be6 Bf1 Bg8 Be2 Bh7 Bd1 Nb5+ Ke7 d6+ Kf7 Kd5 e4 Qg5 Rf4 Bh3 f5 Qg4 Kf6 Bhg2 Be7 Kc5 Bf8 Bg8 Be7 Bd5 Bf8 Nc6 Rc8 Nb8 Be7 Bc6 Bf8 d5 Ke5 Ba8 Be7 Bd2 e3 Bc3+ Rd4 Bd2 e2 Be3 f4 Rb4 Be6 Kc6 Bef5 d7 Bc5 d8B Bd7+ Kb7 Re4 Rb2 Rd4 Be4 f3 Nd6 Bdf5 Kc6 Be6 Rf1 f2 Bef3 Rf4 Bg5 Bb4 Bb6 Bc5 Bh6 Kd4 Nd7 Ke3 Rh1 f1B Rh2 Kf2 Bg5 Be3 Bd4 Kg1 Nb6 Bf2 Bh3 Be3 Rf2 Bef5 Bhg2 Kh2 Be5 Bc5 Bd4 Re4 Bd2 Rf4 B2e3 Bd7+
1rnBk3/3rP1p1/b3Kn1N/N1p2n2/Qr1B4/2r1R1PR/1B3r1p/3BbN1B w - - 0 1 illegal: No proof kernel
1r4Q1/BK1bR3/1b4p1/rq1R1RPk/rN4b1/3b3N/1RpP3p/1rNR1n1B w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 dxc4 h5 Nc6 h6 g6 Ra4 Nce7 Ra5 Nf5 Ra1 Ng7 hxg7 Bc5 Qa4 Bd6 Qd1 Bf8 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 Kf7 e4 c5 g4 h4 b4 c3 b6 a4 b5 h3 b7 h2 b8N c2 b6 c4 b7 a3 Bg2 f3 Nc3 f2 Qe1 f1B Nce2 c3 Nh3 f4 Na6 f3 b8R a2 Ba3 c1R Bc5 f2 Ba7 c2 Rb2 Qd3 Nb4 Ne7 g8R Qb5+ Kd6 Nf5+ Kc7 Rb1 e5 Bd7 e6+ Kf6 e7 Ne3 e8R Bc5 Re7 Bb6+ Kb7 Rh5 Nc1 Bd3 Rg1 f1B Bh1 Bfe2 Rd8 Nf1 Qh4+ Rg5 Qh7 Rc5 Qg8 Rac8 Nf2 Kg5 Nh3+ Kh6 g5+ Kh5 Rg2 Beg4 Rf2 Rc4 Rf5 Rf4 Nd5 Ra4 Nb4 Be8 Rdd5 Bd7 Rb3 Ra8 Bb8 R8a5 Ba7 Rb2 Rb1 a1R Kb8 Rba2 R3b2 Ra6 Kb7 R4a3 Bb8 Ra8 Nb3 R3a5 Rd1 R2a4 Ba7 Rb1 Nc1 Rb8+
1Nn5/2RBRKpp/3nP1B1/B2q3P/b2r2R1/NkrR2p1/r1RQ3n/2n1r3 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f5 g4 axb4 c3 fxg4 Bf4 b5 Kd2 b3 Bh6 b4 Ke1 b2 Bg5 b3 Bc1 Bb4 cxb4 Ke7 Bg2 Kf8 Bf1 Ke8 Kd2 Ke7 Kd3 Ke6 Kd4 d5 f4 g3 h4 c6 a4 Qd7 e4 Ba6 f5+ Kf7 a5 Bb5 f6 Ke6 h5 Bc4 b5 Na6 f7 Rf8 b6 Ne7 b7 Nb4 b8R Re8 f8R Na6 Rd8 Nc7 a6 Bd3 a7 Bb5 a8B Nc8 Nf3 Ba4 Na3 b1R Rh2 b2 Bd2 Rc1 Ba5 b1N Bd3 Nd2 Rf4 Nf1 Qd2 Rc3 Rg4 Rhf8 Re2 Nh2 Rc1 Re7 Rc2 Ne8 Re1 Rff7 Rec1 Ned6 Bb7 Re8 Bba6 Qb7 Bab5 Rc7 Rd7 Qa8 Rd1 Ra7 Rc7 Qb7 Nh4 Ra6 Ng6 Ra8 Ne7 c5+ Ke3 d4+ Kf4 c4 Nc6 Re7 Nb8 Qd5 Be8 Rd7 Bg6 Ra7 Bf1 d3 Bh3 Rb7 Kg5 Rb4 Kf4 Rb2 Kg5 Ra2 Kf4 Ke7 e6 Kf6 e7 Ke6 e5 Rd8 Qf2 d2 Kg5 Rd7 e8R+ Re7 Rh1 d1R Qd2 Re1 Rf1 Re4 Rf3 Rd4 Rd3 Qc6 Nb5 Kd5 Na3 Re6 Ree7 Kc5 Bb6+ Kb4 Ba5+ Kb3 Rf4 Rf6 Bd7 Qd5 Rg4 Rf1 Qe1 Ne8 Qd2 Re1 Kf5 Qb5 Ke6 Ned6 Bc6 Qc5 Kd7 Qd5 e6 Re5 Kd8 Re1 Bd7 Nb6 Re3 Nbc8 Rc1 Rcd3 Rf3 c3 Re3 Ne4 Ke8 Ned6+ Kf8 c2 Rf3 Rc3 Rd3 Kb2 Kg8 Kb3 Ra1 c1N Kf8 Ne8 Kf7 Ne2 Rc1 Ned6+ Kg8 Na7 Rc2 Nac8 Kf8 Nc1 Kg8 Nc4 Kf7 N4d6+
3B4/QnrBN1r1/6BR/pn1N1b2/2KbN2q/3p2PP/1bpp2R1/n1kN3N w - - 0 1 illegal: No proof kernel
1Nbr3n/RB1q1N2/8/1P4Rq/N1p1R3/2BnNppQ/k1KprPN1/4b2n w - - 0 1 legal: proof: d4 b5 c4 e5 g4 h5 a4 hxg4 axb5 d5 cxd5 exd4 Kd2 Ke7 e4 Kd6 h4 Kc5 e5 Kb4 e6 g5 b3 f5 h5 c5 d6 a5 d7 a4 b6 a3 h6 d3 b7 a2 e7 c4 e8N f4 h7 g3 Bb2 g4 Nc3 g2 Ng7 Nh6 Rh5 Na6 b8N Nf7 Nh3 g1N Rg5 Nc5 Nf5 Ne2 Bg2 Ng3 Na4 Nh1 Qf1 g3 Bc3+ Ka3 Bb7 f3 b4 Qa5 Re1 a1Q d8R Ka2 Rd7 Rg8 Rc7 Nh8 Ne3 Be7 Qg2 Re8 Nf4 Qb5 Qh3 Qd7 b5 Bf6 Ba5 Qe5 Nfg2 Qed5 Kc1 Bc3 Kd1 Bd2 Bc3 Q5f7 Re2 Qh5 Re1 Rd8 Re2 Ra6 Re1 Re6 Re2 Ng6 h8N Re5 Nf7 Nh8 Nf1 Re6 Re4 Be1 Nfe3 d2 Kc2 Re5 Ba6 Re7 Ra7 Nd3 Bb7 Qh7 Ree5 Qh5 Nf5 Re6 Re3 Rb6 Re7 Re6 Re8 Re2 Nfe3 Qdg4 Re4 Qd7
Qr6/1RBNB1Bp/1Np1b2b/1n3q1R/4B2P/3p1BP1/b1qk1r1p/2n1RK2 w - - 0 1 illegal: No proof kernel
3n1Q2/2K2pNp/NpNP1Pb1/1p1Bb1N1/3r2R1/k3N2B/2qR4/1Brn1qq1 w - - 0 1 legal: proof: c4 d5 cxd5 a6 b4 Bh3 b5 Bc8 h4 axb5 d4 g5 hxg5 e5 d6 Bh6 d5 Bg7 Bb2 Bf8 Bd4 exd4 Kd2 Kd7 Kd3 c5 Ke4 c4 Ke5 d3 a4 b6 g4 d2 e4 c3 f4 c2 a5 c1Q f5 Bb7 f6 Ra6 g6 Qcc7 g7 Be7 g5 Ra8 g6 Nh6 g8N Qe8 g7 Qec8 a6 Qc1 a7 Qb2+ Nc3 Qc2 Nf3 Na6 Ng5 Nf5 Rg1 Ng3 Bd3 Nb8 Na2 Qc1 Nb4 Ne2 Na6 Q1c4 Rg4 Qa4 Nh6 Rg8 Nf5 Nd4 Ne3 Qa3 Ra2 Qc6 Bb1 Rc8 g8N Nf5 Nh6 Qac5 Qc1 d1Q Qa3 Qf1 Rd2 Bd8 Qb4 Bc7 Qa3 Nh4 Nhf5 Ng2 Ng7 Qc2 Kd4 Qcc1 e5 Q6c2 Qc5 Qg1 Qb4 Qcf1 e6+ Kd8 e7+ Kd7 Ke5 Bc6 Nef5 Ne3 Qc5 Nd1 e8B+ Kd8 Qa3 Bd7 Ne3 Bf5 Bc6 Bg6 Bb7 Kd7 Qc5 Rd8 Bc6+ Kc8 Bd7+ Kb7 Be6 Rc8 Qb4 Bd8 d7 Nc6+ Kd6 Rab8 a8B+ Ka7 Nc5 Rb7 Na4 Ka6 Qa3 Ka5 Nc5+ Qa4 Na6 Rbb8 Qc5 Qc2 Rgd4 Rb7 Bh3 Ra7 Rg4 Rcc7 Nb4 Ka4 Bb7 Ra5 Na6+ Kb3 Ba8 Ra4 Bb7 Rd4 Ba8 Ra7 Bb7 Be7+ Kc7 Ka4 d8N Bd6+ Kd7 Bf4 Qf8 Be5 d6 Ka3 Kc7 Ra8 Bc8 Rb8 Be6 Ra8 Bd5 Rb8 Nb7 Re8 Na5 Rc8+ Kd7 Nd8 Nc6 Rb8 Kc7 Ra8 Nc5 Raa4 Na6 Rac4 Rf4 Rc3 Rg4 Qa2 Bf3 Rc1 Bd5 Qc2
2nN4/1Rp1Qqn1/1NPp3p/1pN1b1N1/Bb6/2N3rb/qR2P3/k1rBK1B1 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 axb4 h4 f5 hxg5 fxg4 c4 Ke7 a4 Ke6 f4 g3 a5 b6 g6 g2 g7 h6 c5 b3 f5+ Ke7 f6+ Ke6 f7 b2 a6 Qf6 a7 Qe7 Qd6+ Kf5 e6 Ke4 Nh3 g1B Bg2+ Kf5 Ra2 Na6 Bc6 Kf6 Nc3 b1Q Ng5 Bd4 Ba4 Be5 c6 Nc5 Rb2 Qa2 Be3 b5 Bg1 Qe8 e7+ Ne6 Rh4 Kf5 Bd1 Rh7 Ra4 Rh8 Ra6 Kf4 Rb6 Rh7 Bh2+ Ke3 Rb7 Rh8 Qa3 Kd4 Bg1+ Kc4 Qd6 Rh7 Na4 Rh8 Nc5 Kc3 Ba4 Nf6 g8B Nd5 Bh7 Rg8 Bhc2 Nb6 Bd1 Ng7 Qe6 d6 Qf6 Bh3 Qe6 Qd7 e8N Nc8 Nf6 Be7 f8N Bd8 N6h7 Bdf6 Qe7 Qe8 Nfe6 Qf7 Nf3 Bg5 Nf6 Bgf4 Nfg5 Be3 Nb3 Bc5 Nd8 Bb4 Nc5 Nh5 Nge6 Rg3 Ng5 Ng7 Rd2 Qc2 Nfe4+ Kb2 Nc3 Ka1 Nf3 Rb8 a8N Qca2 Nb6 Ra8 Rb2 Ra6 Ng5 Ra5 Bab3 Ra3 Ba4 Rb3 Rd2 Rb1 Rb2 Rc1
1k6/N1pQp1n1/2pr2B1/1P3Pqr/4nq1N/2B1B1p1/1KB1Rqb1/R3bR1B w - - 0 1 illegal: No proof kernel
2nB1nq1/1p3N1R/BN2PQ1p/rR2p2K/1P1kB1bR/4p2R/4r3/2b1qRq1 w - - 0 1 illegal: No proof kernel
1RNNK1N1/p2n2qB/3Pq2n/3B1r2/8/1pbBrp2/br1pNPk1/Q2R2N1 w - - 0 1 illegal: No possible last move, all moves rejected
2r4N/p2p3n/3kq3/QP3rrN/3pR1bp/2B2nqB/2BP2R1/K1BR2bB w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 gxh4 Qg4 f5 exf5 Nf6 Qe4 Ng8 Qd4 cxd4 Kd1 e5 b4 Ke7 f4 h5 g4 e4 c4 e3 Kc2 e2 Kb2 e1Q f6+ Kd6 c5+ Kd5 c6 h3 c7 h4 g5 h2 f7 Qee7 g6 Qe3 f5 Qe6 f6 Bc5 f8Q Bb7 c8B Qdb6 g7 Qed6 f7 Rh7 Bh3 Qe7 Na3 Qbd6 b6 Qe2 b5 Rh8 Qd8 Qc7 f8B Bd6 Nc4 Bc5 Nd6 Bc6 b7 Nh6 g8B+ Qe6 Ne2 Ng4 Rg1 h1R Bh7 Rg8 Bc2 Nf6 Nf7 Rg5 Nh8 Nh7 Rg2 Rf1 Ng3 Bd6 Nh5 Bh2 Bb4 Qg3 Bc3 Bg1 Qa5 Rff5 Rb1 Kd6 Ka1 Na6 b8R Nc5 Rb6 Nd3 Bb7 Rc8 Ba8 Ne5 Rb8 Rcg8 Re8 Nf3 Re7 Rc8 Re8 Qh6 Re4 Qe6 Re3 Qe4 B1b2 Nh2 Rge2 Qf2 Rd1 Qe6 Bc1 Bf3 Bd5 Bg4 Bh1 Qf4 Rg2 Nf3 Re4 Qg3
1RK1R3/2r1P1BB/pq5n/2k1P2p/np2prR1/b3Rb1Q/5NbB/R3b1N1 w - - 0 1 illegal: No proof kernel
1bqq4/1r1ppP1K/bBR1n2p/2R2NRB/bN1r1p1P/4B2k/8/1QBB2q1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 c5 d4 cxd4 f3 f5 Kd2 f4 Ke1 Nc6 Qd3 Na5 Qd1 Nc4 Ke2 Ne3 Ke1 Nf5 exf5 g4 Ke2 gxf3+ Kd2 Qb6 Ke1 Qd8 Kf2 Kf7 h4 Kf6 b4 a5 c4 h6 g4 d3 g5+ Ke5 g6 a4 c5 a3 c6 a2 f6 Kf5 g7 Kg4 b6 d2 b5 Ra3 c7 Ra8 b7 Ra6 b8B Rc6 b6 Rd6 b7 Rb6 Na3 Re6 Ne2 Ra6 Nc2 Ra5 Ng3 Ra7 Rg1 Ra3 Ba7 Ra5 b8B Rc5 Be2 Rh5 Be3 Rd5 Bba7 Kh3 Nf5 Ba6 c8R Rd4 Rc6 Qc8 f7 Nf6 g8B Nh5 Rg5 Ng7 Bh7 Ne6 Nb4 Bg7 Bb6 Be5 Bg6 Bb8 Bh5 Re8 Qc2 d1B Qb1 Ba4 Bd1 Rg8 Qe4 Rf8 Rb1 a1Q Rb2 Rd6 Rbc2 Qh8 R2c5 Rd4 Qb1 Rg8 Bed2 Rg6 Be3 Qhd8 Ke1 Rc4 Kd2 f2 Ke2 Rd4+ Kf3 Kh2 Kg4 f1Q Ng3 Rg8 Kf5 Re8 Kg6 Qg1 Nf5 Kh3 Kh7 Rf8 Rg6 Rg8 Rf6 Rg2 Rg6 Rb2 Rg5 Bb7 Na2 Rb5 Nb4 Ba6 Ba5 Rb7 Bc7 Ra7 Bb6 Rb7
b1qkN3/Bp5B/3BK3/2p2pp1/1NB4R/NPqq2P1/1RQ2nr1/nB1b1b2 w - - 0 2 illegal: Other
1n1R1R1K/R2np1BN/3n3b/1q2Pp1N/1Ppr1rpq/3R4/7k/1QB1R1rB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 c4 dxc4 axb5 Bb7 f5 Be4 Na3 hxg4 Nb1 g5 Nc3 g3 Nb1 Bf3 Ra3 Bh5 Ra1 Bg6 fxg6 Qd4 Qb3 Qd7 Qd1 Qd8 e4 Kd7 Ke2 Kd6 Kf3 Ke5 Kg4 a5 d4+ Kf6 h4 c5 b4 g2 h5 a4 h6 c3 Kh5 a3 d5 Ke5 b6 f5 d6 c4 h7 c2 b7 g4 d7 a2 g7 Ra4 Kg6 Qc7 d8R Qc5 Nd2 Kf4 e5 Kg3 Ndf3 Qa5 Ng5 Nf6 g8R Bh6 Rgf8 Ra3 N1h3 g1R Bg2 Ne4 Nf4 Rf3 Rd3 Qb5 Rfd8 Re8 h8B Nd6 Kh7 Rf8 Bg7 Rf6 Be3 c1N Kh8 Nb3 Nh7 Nc5 Qb1 Ncd7 Bc1 Rg6 Rh2 Rf6 Bh1 Rg6 Re2 Rf6 Re4 Kh2 Nh5 Rf4 Rg8 Rf8 Re1 Rc8 Rd8 Rc5 Rf8 Rd5 Rf1 Na6 b8R Rdd4 Rbd8 Nab8 Re1 Qb7 Qb3 Qb5 Rb1 a1Q Qa2+ Qb2 Ra1 Qd2 Qb1 Qf2 Ra7 Qh4
N1br1b2/ppp1nNB1/3Rp1rB/q1P1NQ2/PN4b1/1B4K1/q2R1q2/2N2k2 w - - 0 2 legal: proof: e4 f5 c4 fxe4 h4 d5 cxd5 g5 b3 Nd7 b4 Nc5 bxc5 gxh4 g4 Kd7 f4 h5 Kf2 h3 d4 e3+ Kg3 h2 a4 e6 d6 Kc6 f5 Kd5 f6 Ke4 d5 e2 g5 Qd7 g6 Rh7 g7 Rh6 f7 Rf6 Nf3 Qb5 d7 Rb8 d8N Nh6 g8N Qe8 d6 Bd7 Nbd2+ Kd3 Nb3+ Kc3 Ne7 Rc8 Ra2 Ng8 Ndc6 Rd8 Rd2 Bc8 Nb4 Qb5 d7 Qa5 Ned5+ Kc4 Rg1 h1B Nb6+ Kc3 Qe1 Ne7 Qf2 e1Q Ne5 Bf3 Bc4 Bg4 Na8 Rg6 Rd6 Qe2 Rg2 Qa2 Bh6 h4+ Kf4 h3 Nc1 h2 Kg3 h1Q Bb3 Qd1 Qf5 Qdc2 Rgd2 Re8 R2d5 Qd2 d8N Qd4 Bg7 Kd2 Bh6+ Ke1 Bg7 Qe4 Rd2 Qec2 Bh6 Bg7 f8B Qcb2 Bf4 Kf1 Ndf7 Bh6 Bg7 Rd8 Bh8 Bf8 Bg7 Qd4 Bfh6+ Qf2+
1NbnB2k/1Q1ppBr1/4pp1n/R2r4/1bP1r2n/R3B1b1/3BBPN1/N3K3 w - - 0 1 illegal: No proof kernel
2R1RB1K/2b1pBPb/1Bp1Pr1n/1R1p1p2/qNrB1r2/8/3bBr2/2k2N1Q w - - 0 1 illegal: No proof kernel
N1B1R1Rn/2B1p1rb/P7/K4Bbn/1b2b1B1/ppp2n1N/P5Q1/kq2RB2 w - - 0 1 illegal: No proof kernel
B1N2k1n/p1p1q1n1/bnP4r/R2RQB2/1bB2p2/1R2NP1R/Knp2R2/q7 w - - 0 2 legal: proof: h4 g5 hxg5 b5 d4 d6 c4 Bg4 a4 bxa4 e4 Bh3 e5 Qc8 c5 Na6 c6 Qd8 d5 Bc8 Be3 Rb8 Bc5 dxc5 Ke2 Rb3 Ke1 Rh3 Bc4 Rh6 Bf1 Rd6 exd6 Bg4 Nh3 Bf5 Ng1 Bc8 Kd2 h5 Kc2 e5 g4 f5 b4 c4 Kb2 h4 f3 f4 b5 e4 d7+ Ke7 b6 e3 b7 e2 b8R e1N d6+ Kf7 g6+ Kg7 g5 h3 Nd2 h2 Ne2 Nh6 Ng3 Nf5 Nge4 Ne3 Rb3 N1c2 Qe1 Qe7 d8R Qf7 d7 Ng4 Nd6 Ncb4 Qe5+ Qf6 Ka3 c3 N2c4 c2 Ne3 Nc5 Ba6 Ncd3 Bb7 Nh6 Ba8 Ba6 Nc8 Nf7 Raf1 Rh7 Rf2 Nb2 Ra1 Be7 Rh8 h1N d8R Ng3 Rdd1 Rh1 Rh5 Kg8 g7 Nh8 Rd8+ Kf7 g8B+ Kg7 g6 Nd5+ Rd6 Kf8 Bh7 Nf5 Rh4 Nb6 g7+ Kf7 g8B+ Kf8 Rhh2 Ng7 Bc4 Qe6 Bf5 Qd7 Rhg2 Rh6 Rg3 Qe8 Rh3 Qd8 Kb4 a3 Ra2 Qd7 Ra1 a2 Ka3 Bd8 Rd5 Bf6 Qe4 Bc3 Qe5 Qf7 Rad1 Be1 Ra5 Qf6 Rdd5 Qe7+ Rb4 a1Q+ Kb3 Qc1 Ka2 Qd1 Rb3 Bb4 Bb7 Qh1 Ba8 Qa1+
4NBn1/1p4b1/1P1P1Rn1/1K2RNR1/rpR5/4BBpp/1kq2Qbq/R2n2n1 w - - 0 1 illegal: No proof kernel
1N1N3K/3b1p2/bB2rr1p/R3Qnr1/pk1p3N/1B2NP2/Bb3Pn1/R4rN1 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 g5 Rh2 gxh4 Rh1 b5 axb5 Qc7 Nf3 Qf4 Ng1 Qf3 exf3 Bg7 Ra3 Bh6 Ra1 Bf8 Ke2 d5 Kd3 Kd7 g4 Kd6 c4 Kc5 b4+ Kd6 c5+ Kc7 c6 Kb6 c7 e5 g5 a5 g6 h6 g7 a4 Na3 h3 Qe2 h2 Nc2 Rh7 Ne3 Nf6 g8N Ng4 Ne7 Bd7 c8B Ra6 N7f5 Rg7 Nh4 Rg5 Bb7 Bg7 Bh3 Nf6 Be6 Nc6 Ba3 Ne7 Bc8 Kc7 b6+ Kc6 b7 Kb5 b8N Nf5 Nc6 Nh5 Nd8 e4+ Kd2+ Kb6 b5 Ka5 b6 d3 b7 Nf4 b8N Bb2 Bc5 d4 Bb3 Rf6 Bb6+ Kb4 Ba6 Ng2 Bac4 Bc6 Ba2 Be8 Bcb3 Bd7 Kd1 d2 Kc2 d1B+ Kd2 Ka3 Qb5 Bc2 Qe5 Bd1 Rc1 Be2 Rc5 Kb4 Ra5 Bd3 Ne2 B3b5 Ra1 h1R Ng1 Nd6 Nc4 e3+ Kd3 Nf5 Ke4 e2 Ne3 e1R Kd5 Ba6 Ke4 Ng3+ Kd5 Rf4 Kd6 Rff5 Ke7 Rf6 Kf8 Nf5 Ba7 Rh5 Kg8 Rg5+ Kh8 Re2 Bb6 Re1 Ne2 Rhf1 Ng1 Rc1 Ng4 Rcc6 Ne3 Rce6
1R1n1R1n/b1K1Nbr1/r1Rn3B/qQ1pN1P1/ppNp4/1RB4p/P2R4/5k2 w - - 0 1 legal: proof: e4 c5 d4 e5 b4 f5 h4 g5 hxg5 Be7 Bd3 Bf8 bxc5 exd4 e5 Nc6 Be4 fxe4 Qd2 Nb8 Qd3 Be7 Qd1 Bf8 Ke2 Ke7 g4 Ke6 f4 Kd5 c4+ Ke6 f5+ Kf7 g6+ Ke7 e6 Kf6 g5+ Ke5 g7 b5 f6 d5 c6 a5 e7 h5 e8R+ Be6 c5 b4 c7 h4 c8R a4 f7 e3 Kf3 e2 c6 h3 c7 Qd6 Bb2 Rh6 Qd3 Qb6 Na3 Qa5 Rb1 Ra7 Qb5 Bc5 f8B Nf6 g8R Ne4 Rh2 Nd6 Bc3 Nc6 Rb3 Nd8 Nc4+ Kf5 Kg3 Ke4 Nf3 Kd3 Kf4 e1N Ke5 Ng2 Rg6 Ke2 Rb8 Rb7 c8N Rg7 Ne7 Kf1 Rf6 Nh4 Rd2 Ba7 Rg6 Rhh7 Rf6 Rg6 Bh6 Rhg7 Ref8 Bf7 Re6 Ne4 Reb6 Rd6 Rc6 Ng6+ Kf5 Nh8 Nfe5 Rd7 Kf4 Rb7 Kf5 Rb6 Kf4 Nb7 Kf5 Ned6+ Kf6 Bg6 Ke6+ Bf7+ Kd7 Nd8 Kc7 Ra6+
2RbN2B/6B1/2P1k1n1/p6b/1p2ppK1/brnR1p2/Q1P1BN2/BN1r1B1q w - - 0 1 illegal: No possible last move
8/3B4/P3p1KB/2QBPB2/1bNr2p1/1k1n1pNR/NB1n1p1p/b1R1n1qr w - - 0 1 illegal: No proof kernel
3rR1B1/Qq2p3/RP3RpK/2brB2p/bnpp1N1k/1R1Nn2P/2N5/5R1n w - - 0 1 illegal: No proof kernel
1R4rn/Kp1r4/3b1RB1/pkPbN3/1p1q1RpN/1n2PR2/2pRN3/3QB1r1 w - - 0 1 illegal: No proof kernel
Bn6/b1N1B2b/B1R2r2/2n1k1qr/Pp4K1/N1P2p1p/1Q1pqp2/3BRBR1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 b4 axb4 Kf2 Ke7 Kf3 Ke6 g4 b5 a4 f5 e4 d5 c6 h5 c7 d4 g6 d3 c3 d2 g7 h4 g5 b3 e5 b2 g6 h3 Qc2 Qg5 Ne2 Rh4 Na3 b1Q Qb2 Rh5 Rg1 Nh6 g8B+ Nf7 g7 Qa2 Nd4+ Kd5 e6 Qb1 e7 Ra6 e8R Rf6 Re6 Bc5 Rc6 Ke5 Ne6 Ba7 Bh7 Bd7 c8B Nd6 g8B Ne4 Ba6 Nc5 Nc7 Qa2 Be6 Qc4 Bd5 Be8 Be4 Bg6 Bc2 Qe6 Bd1 Qc4 Bg8 Bh7 Bd5 Qd3+ Kf2 f3 Rb1 Qge3+ Kg3 f4+ Kg4 f2 Qc2 f3 Rb6 Nb7 Bde2 Re6 Nc4+ Kf6 Ba3 Na5 Re1 Nb3 Bd1 Qde2 Qb2 Qe5 Bc5 b4 Ba8 Qd5 Bf8 Nc5 Na3 Qd8 Rd6 Ke5 Rc6 Qf6 Be7 Qh6 Rb6 Rf6 Rc6 Qg5#
1R2q3/BpB1n3/R1p1Q1n1/3n2rr/1pqp2Pk/R1bP3p/2N1B3/NK1B2B1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nh3 d5 Ng1 d4 Nc3 Be6 Nb1 Bd5 cxd5 Qd7 Ne2 Qd6 Ng1 Qd8 a4 Kf7 g4 Kg6 f4 e5 d6 h5 d7 c6 d3 e3 a5 h4 f5+ Kf7 a6 h3 a7 e4 g6+ Kf6 g7 Kg5 f6 Rh5 f7 Nh6 g8B Qc7 d8B+ Qe7 Bc7 Nd7 Ne2 Ne5 Ra3 Qd6 Qb3 Nd7 Kd1 Qd5 Kc2 Nf6 Kb2 Bd6 f8B Bf4 Bc5 Nf5 Ka2 Rb8 a8R Kh4 Ba7 Qc4 Be6 Rd8 Rb8 Nd5 Bd2 Rg5 Nc1 e2 Be3 e1N Bg1 e3 Be2 Nfe7 Ra6 Rc8 Na3 Ng2 Nc2 Rh8 Kb1 Rhh5 Qa2 Bg3 Nb3 Be1 Nba1 Ngf4 Bf7 Bc3 Bg8 Nb6 Bd5 Nfg6 Bdf3 Nbd5 Bd1 e2 Rh2 e1Q Be2 Qb5 Ra3 Ndf4 Qe6 Qc4 Rf2 Nfd5 Rf5 Nf6 Rfa5 Nfd5 Ra6 Qd2 Bab6 Qe3 Ba7 Qe5 Bd8 Qh8 Bc7 Qe8
2R5/1pPBN1Q1/bk2np2/1B1q4/p6b/1PRpKNBB/r4Bp1/1nN2qn1 w - - 0 1 illegal: No proof kernel
q1nN3N/4b3/n2p3k/KR1PR1r1/q1Qq2qn/N1p1N1N1/B1PB1r2/2Rbr3 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 g4 a5 b4 c5 d4 f5 Kd2 Kf7 Kc3 Kg7 e4 h5 g5 a4 e5 d6 g6 a3 b6 f3 b7 h3 e6 c4 d5 f4 e7 a2 e8N+ Kh6 g7 h4 b5 f2 Kb4 h2 b6 h3 Qd2 Ne7 g8R Na6+ Ka5 Bg4 b8N Nc8 Na3 Bd1 Nd7 Be7 Rf8 Rg8 Rf7 Rg5 Ng7 f3 Rb1 a1Q Qd3 Qd4 Rb5 c3 Ne5 Qg8 Be2 f1N b7 f2 b8N Ne3 Bd2 f1R Ng6 Ng2 Qc4 Rf2 Nh8 Nh4 Rf5 Qe6 Re5 Qeg4 Nc6 Rb8 Rc5 Rb1 Rb5 Ra1 Bd3 Rc1 Ne2 Ra1 Rf1 h1Q Re1 h2 Nd8 Qf1 Ng3 h1Q Be2 Qhf3 Bd3 Qf8 Be2 Qe8 Bd3 Qc6 Be2 Qa8 N7f5+ Kh7 Ne3 Kh6 Qc7 Rb1 Bc4 Ra1 Ba2 Qfc4 Rg1 Qb3 Qc4 Bf3 Rb1 Be2 Rb2 Re1 Rb1 Bd1 Rc1 Qa4+
n2r1nn1/3NQr1q/p2Bp3/K3RnNb/2r1Nb1b/1B2PB2/P4RB1/2q1k2B w - - 0 1 illegal: No proof kernel
1nB2BBk/2p2p2/1r1b2qB/1qr2P1n/RnP2n2/1bK2NQ1/rR1B3R/5r1N w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 Ra4 gxh4 Ra5 Na6 Ra1 Nb8 d4 e5 Kd2 a5 b4 h5 f4 a4 g4 h3 g5 e3+ Kd3 a3 f5 h2 c3 a2 g6 e2 b6 e1Q b7 h4 b5 h3 g7 Bd6 d5 Nf6 g8B Kf8 b6 Kg7 Qf3 Qe8 Bd2 Rh6 Qg3+ Kh8 Nf3 e4+ Kd4 e3 Ba6 e2 c4 Qg1+ Kd3 e1R Nc3 Nh5 Ne2 Qb5 Kc3 Rg6 Bh6 Nf4 Bf8 Bd7 Bh6 Nc6 b8R Rf1 Bc8 Ra5 b7 Qgb6 Rb1 a1N Rb4 Nc2 Ra4 N2b4 Bf8 Ra1 Bh6 Ra2 Bf8 Bc5 d6 Be8 d7 Bd6 d8B Rf6 Rg1 h1R Rg2 Rf1 Rh2 Re6 Bg5 Rf6 Ra8 Nb8 Bgh6 Bc6 Ra6 Be4 Ra8 Bc2 Ra7 Bb3 Ra8 Nd7 b8B Qg1 Ba7 Nb8 Be3 Qg2 Qh4 Qg6 Ng3 Re6 Rb2 h2 Bd2 h1N Ra6 Qd7 Rb6 Rc5 Rc2 Qb5 Qh3 Nf2 Nh1 Nh5 Qg3 Nfd3 Rb2 Ndf4 Rba6 Be7 Rd6 Rf6 Re6 Bd6 Re2 Be7 Rg2 Rb6 Rh2 Bd6
3R1Rn1/1NNQq1R1/2p4n/1Rp2rq1/3rkB1B/4pb2/1rP1P1bn/R2K2bB w - - 0 1 illegal: No proof kernel
1Q2R2r/1n1N2pB/4R3/rn1pb1N1/k1KPn1Br/pn1RR1P1/b7/1qBR3b w - - 0 1 illegal: No possible last move, all moves rejected
nr1Nk3/Nnb5/BB6/1pbN1bKp/1QnBb1rR/1R1pN3/1P3NrP/4q3 w - - 0 1 illegal: No possible last move, all moves rejected
1b1n2RQ/n3q3/p1r1B1B1/1p3rN1/2pNrRBn/nPPb2B1/1K2RB2/q2k4 w - - 0 1 illegal: No possible last move, all moves rejected
1qBNnB1N/1qp2B2/k3br1B/3Bpbr1/K1Ppb3/2rRP1NQ/3b1n2/7R w - - 0 1 illegal: No proof kernel
3R2BK/3Rp3/1Bp3k1/n1qr2b1/3Rbp2/2N1PQ1N/qrn2P1q/bqNN1N2 w - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 b5 axb5 g5 Ra2 gxh4 Ra5 Qd5 Ra1 Qd8 g4 a5 b4 f5 d4 Kf7 Kd2 h5 Ke3 f4+ Ke4 a4 g5 h3 g6+ Kf6 g7 h2 d5 a3 b6 c6 b5 a2 d6 c3 b7 c2 d7 h4 b6 h3 Be3 c1B Nd2 Na6 b8N Rh4 b7 Rh8 Bb6 Qe8 d8R Rh7 e3 Rh5 Nd7+ Kf7 b8N Nb4 Na6 Rd5 Ndc5 Kg6 Bc4 Nc2 Qf3 Rb8 Nc7 Bb2 Rd1 a1Q Ncb3 Nh6 g8N Nf7 Nf6 Qa2 Nc1 Ne5 Nf1 Bh6 Rd4 Ba1 Nb5 Bg5 Nc3 Bg4 Bb3 Nc4 Nd1 Na5 Bc4 Qd7 Bb3 Qa7 Rd7 Rb5 Nd5 Bf5+ Ke5 Be4 Ke6 Rb7 N5c3 Rd5 Rd8 Qa6 Rd7 Qb5 Bc4 Qc5 Rd8 Kh6 Kf7 Kh7 Kf8 Kg6 Kg8 Rb8 Kh8 Rb7 Nge2 Rb8 Rg1 h1Q Bb3 h2 Bc4 Rd6 Bg8 Rd5 Rd7 Rb7 Rg4 Qg2 Ng1 h1Q+ Nh3 Qhh2 Rh4 Qg4 Rh7 Qf5 Rf7 Rb8 Rf8 Rb7 Bc7 Rb2 Bb6 Qb1 Rfd8 Qg4 Qg2 Qe2 Qg4 Qec4 Qf3 Qca2
1n1R1B2/1pbrpb2/r1B2Nr1/rPpR3n/R1N2RQ1/1R5n/2K1Pn1k/1qN5 w - - 0 1 illegal: No proof kernel
4N3/2Nr3n/1p1qbp1B/4RPNp/1krp1BR1/1P2b3/BK1n3r/2bQBB1r w - - 0 1 illegal: No possible last move, all moves rejected
1n2BbB1/1p1r1K2/R7/pb4rN/1B1bq1N1/1r1N1pR1/pP2BP2/BQ1n2rk w - - 0 1 illegal: Other
QRBKbrN1/NpB2p1N/p6b/B1RqBP2/3p4/r4n2/1p1P1Brn/k3b3 w - - 0 1 illegal: No proof kernel
1rn2q2/2Bp1B2/1Rp2Npp/2b5/rNPK3B/k2N2RP/1p1n2N1/2r1bQNb w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g3 f5 g4 fxg4 Kd2 Ke7 Kd3 b5 e4 g3 f4 h6 a4 g2 a5 g6 f5 b3 e6 Kd6 f6 Kc5 f7 Kb4 h3 b2 e5 c6 a6 Ra7 e7 Nf6 e8N Qb6 e6 Rc7 e7 Bg7 f8B Nh7 a7 Be5 a8N Nf6 Ra6 Ne4 Nc3 b1R Nce2 Qf2 Bf4 Ra7 Rb6 Bc3 Nac7 Rc1 Ng7 Ra4 e8N+ Nd6 Na6+ Ka3 Ne6 b4 Be7 b3 Bh4 b2 Nf6 Be1 Nb4 Na6 Nc5 Bb7 c3 Nc8 Bc7 Re8 Kc4 Qf5 Nd3 Nc5 Kd4 Ne4 Nef4 Nd2 Be2 Ba6 Bf3 Rf8 Bd5 Bc4 Bf7 Bd5 c4 Rg8 Qe2 Rf8 Qf1 Be4 Rh2 Rg8 Nge2 g1B+ Rf2 Bh1 Ng2 Bh2 Ng1 Bd6 Rf3 Rd8 Rg3 Rg8 Be6 Rd8 Nfd5 Qf8 Bf7 Bc5+ Ke5 Na7 Nf6 Ra8 Ng8 Nc8 Nf6 Be7 Kd4 Rb8 Ng4 Bd6 Nf6 Bc5+
2BbNk2/1p3NrR/1qN1p3/2q1rR2/2N2R1Q/BPnn2pp/K1bbNpP1/8 w - - 0 1 illegal: No proof kernel
1K1Qn2N/1N1pNr2/3R1p2/p1pR3B/1pqR2N1/N2nBPk1/2P1r3/1n1bbq2 w - - 0 1 illegal: No proof kernel
1N1B1bn1/3p1K2/QR2r1p1/1bR5/2pk1qPp/1pr1np1R/NRBP3N/4R1b1 w - - 0 1 illegal: No proof kernel
1n1b4/2Nb4/n1q4q/R1RBB3/2P1R1q1/NrP1rQ2/n2k2p1/BKNB4 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 a4 b5 axb5 f5 e4 c5 exf5 c4 d3 Qc7 dxc4 Qd8 Bh6 Kf7 Kd2 Kf6 Kc1 Na6 c3 Ke5 f4+ Ke4 h4 Ke3 f6 e5 h5 d5 f5+ g5 f7 e4 f6 g3 b6 d4 b7 d3 b8B Be7 f8Q Rh7 f7 d2+ Kc2 Qe8 Be2 Nf6 Rh4 Be6 Bg4 Nd7 Ne2 Bf5 Bd6 Rb8 Bg7 Qc8 h6 Bd8 Ba3 Qc6 Bb2 Rb4 Bh5 Rh8 h7 g4 Ra3 Rg8 h8R Ndb8 Ba1 Bd7 Bf6 Rg6 Ra4 Rg5 Na3 Re5 Rg8 Re7 Rg5 Re5 Qb1 d1N Rf5 Nf2 Qb3 Nd3 Kb1 Kd2 Bh8 Re7 Rc5 Nc1 Bg7 Na2 Nc1 e3 Bf6 e2 Bd4 Re3 Be5 Nc7 a6 Qh6 a7 e1Q a8B Qh1 Raa5 Nca6 Bf3 Qg2 Bd1 Qb7 Bg6 Qc6 Be4 g2 Bef3 g1Q Bd5 g3 Re4 Nc7 Qg8 Rf3 f8N Nca6 Ne6 Re3 Qf8 Qg2 Nc7 Qgh3 Nd3 g2 Nc1 Qg4 Qf3 Rxb3+
KB6/2n4n/1bQ1n2R/B3N1qP/2qRNN2/3B1q2/1knpR1Pn/3r3B w - - 0 1 illegal: Other
nBNnk1b1/p1pNb1Rn/2p1R3/RBPP2q1/p6K/2p5/3NB3/6BQ w - - 0 1 illegal: Other
KN2NR2/B1PRB1q1/bB2k1r1/q1b2bb1/1B6/n1R5/1P3Q1n/2N1brr1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kf2 e5 h4 Ke7 c4 d5 b6 a5 g7 g3+ Kf3 a4 h5 g2 h6 a3 h7 a2 g6 d3 f6+ Kd6 f7 d4 Ke4 d2 c5+ Kd7 Kd5 e4 b7 d3 Qe1 d1R Bg5 e3 Rh3 e2 Qf2 e1B Ne2 g1B Nd4 d2 Be7 Ra5 Rc3 Ra3 Nc6 Nh6 g8R Qa5 g7 Na6 b8B Bb7 Ba7 Ng4 Bb6 Rc1 Ba7 d1B Nd2 Ra4 Nb3 Nh2 Bb6 Rb1 Nc1 Bg4 Ba7 Rf4 Bb6 Bc8 Ba7 Kc7 Nb8 Bcf5 Bb6+ Kc8 Kc6 Nc7 Ba7 Be2 Bb6 Nb5 Ba7 Qa4 Kb6 Qb4 c6 Qd4+ Ka6 Rg4 c7 Rg6+ Bb6 Na3+ Ka7 Ba6 Ka8 Qd8 Bb4 Bc5 f8B Qf6 Be7+ Qf8 Ba7 Be3 Bb6 Bg5 Ba7 Qd8 Re8 Rg8 h8B Rf8 g8N Rff6 Qe2 Bc5 Qf2 Rf8 Bd4 Rf7 Nc6 Kd7+ Nb8+ Ke6 Nf6 Qd7 Rf8 Rfg7 Be3 Qd4 Bb6 Rf7 Ne8 Qg7 Nb3 Rd1 Rb1 a1Q Nc1 Rd4 Ba7 Rg4 Bd4 Rg1 Be3 Bd6 Beb6 Qa2 Ra1 Bc5 Rb1 Nc4 Ra1 Qa5 Raa3 Rff6 Rd3 Rf7 Rac3 Na3 Rd7 Bfd3 Qd4 Rff1 Qf2 Bf5
3R1B1r/b1NqRb2/RN1PB1q1/6R1/1r1Bk1n1/6PQ/rN2K3/1bbrn3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 f4 Kf6 d6 h5 b6 e5 g3 c5 d7 h3 d5 e4 b7 c4 Kf2 c3 Ke3 c2 Kd2 h2 Bh3 e3+ Ke2 h4 Na3 b3 Nc4 b2 Nb6 b1B Ra6 Nc6 b8N Ne5 Nf3 Nh6 Re1 h1R Bb2 c1B Bd4 Ng4 Nd2 Bc5 d6 Qc7 d8R Be6 Qa4 Bf7 Ndc4 Qd7 Nb2 Ra7 Rg8 Rb7 Rg5 Rh2+ Bg2 h3 Qa1 Rh1 Bd5 h2 Be6 Rf1 Qa4 h1Q Qc6 Qh5 Qh1 Qg6 Qg2 Kg7 f6+ Kh6 f5 Nd3 Ra2 Ra7 Na6 Rf4 Nc7 Re4 Ra6 Raa8 N6c4 Ba7 Nb6 Kh7 Be5 Rb4 Bd4 Bg8 f7 Kh6 f8R Bf7 Kf3 e2 f6 Kh7 Rd8 Kh6 Rg1 e1R Rf1 Rd1 Re1 Kh7 Ree5 Ne1+ Ke2 Bg8 f7 Kg7 f8B+ Kf6 Qh1 Bf7 Qh3 Qh7 Rg8 Qg6 Re4+ Kg5 Bb3 Kf5 Re7 Qg5 Be6+ Ke4 Nd3 Qf5 Rg5 Qg6 Nb2 Ra4 N6c4 Rb8 Nb6 Ra2 Nbd5 Rb5 Nb6 Rb4
8/Bq2Br2/N4P1P/Qnb3Nr/3nrnR1/R1Brq2q/R6K/Nr1N1k2 w - - 0 1 illegal: No possible last move, all moves rejected
1bq3KN/b2B4/br1P3k/R5b1/1rBBNPn1/2RQ2Nb/4b1r1/R4B1q w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 cxd5 f5 axb5 fxe4 Qe2 a4 Qg4 Nc6 Qd1 Na5 bxa5 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 c5 g4 a3 d4 h3 d6 e3 a6 h2 d7 h4 Ke6 a2 b6 h3 g5 c4 b7 c3 b8N e2 d5 e1B f3 c2 a7 Ba6 Be3 c1B Bb5 Rh4 Qe2 Nf6 Nc3 Qc8 Bd4 Ng4 Nc6 Bf2 Ne4 Rb8 a8B Rb6 Qd3 Kh5 Kf7 e5 d8R Bd6 g6 Kh6 g7 Bg5 g8B Bb8 Rc1 a1R d6 Ra2 Ne2 Bfe3 Rhf1 h1B Rc3 h2 N2g3 Bg2 Ne7 h1B Ra1 Bh3 Ng6 Rg2 Bac6 Bf2 Bd7 Bfe3 Nd2 e4 Nh8 Bf2 Ra5 e3 Nde4 e2 Kf8 e1Q Bgc4 Qc1 Kg8 Rc6 Bf6 Bfa7 Bd4 Rb6 Rf8 Rd2 Re8 B1g2 Rd8 Qh1 Rf8 Bf1 f4 Be2 Ra1 Rb2 Rd8 Rb4 Re8 Bd8 Re5 Rh5 Ba4 Rf5 Ra5 Rfb5 Bc2 Rb2 Ba4 R5b4 Bab5 Bg5+ Be8 Qc5 Bed7 Bf3 Qc2 Ne3 Bd3 Ng4 Bbc4 Bd1 Qb1 Rg2 Bf1 Be2 Qd3 Qc8+
2rB2bb/P4nn1/8/R2BN1R1/1BN1Kq2/1Pr2pr1/BNk2bRQ/2n4n w - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 b3 a4 Qc2 a3 Qc3 Na6 Qb2 Nb8 Nc3 axb2 Na4 Qg5 Nc5 Qe7 Nxb7 Qd8 Kf2 Ke7 Kf3 Kf6 a4 Kf5 h4 b1R d4 g5 e4+ Kf6 h6 c5 h7 c4 e5+ Kf5 h5 f6 e6 c3 e7 c2 e8B Ra6 d6 Nd7 a5 Ra7 h6 Qe7 d5 Bg7 a6 Qf8 Bc4 Ne7 Nc5 Rc7 Ba3 c1N a7 Bb7 Rh2 g4+ Kf2 f3 Ke3 f2 Nd3 g3 Nf3 g2 Nfe5 g1B Rg2 Bc8 Bb4 f1N+ Kf3 Ba6 Ra5 Bf2 Nb2 Ng3 Bh5 Rg8 h8Q Nh1 h7 Rc8 Bf7 Bb5 Be2 Bd3 Bd1 Rc3 Bc2 Qb8 Nec4 Rc8 Bg8 Ra1 Bb1 Ra2 Rg6 Ra4 Ba2 Ne5+ Kg2 Ke4 d7 f5 d8B f4 d6 Bc2 d7 Nf5 Rg5 Kd4 Be6 Nf7 Bd5 Bd3 Kf3 Qd6 Qe8 Bh8 Qe2 Ng7 Qc2 Be3 Qh2 Bf2 Be7 Qe5 d8R Qf6 Rg8 Bb1+ Kg4 f3 Bd8 Bf5+ Kf4 Qh6 Nd1 Kd3 Ndb2+ Kc2 Bc6 Qh3 Bd5 Be6 Ke4 Qh6 Rb5 Ra6 Ra5 Bd7 Rg2 Rg6 Rg5 Be6 Rg2 Ne8 Rg7 Rg3 Rg5 Bf6 h8N Ng7 Ng6 Ne5 Nd2 Nh5 Ndc4 Bh8 Rf5 Ng7 Rh5 Bg8 Rf5 Qd2 Rg5 Nf7 Nge5 Qf4+
1N2B1B1/1N2R1B1/RP1bb2K/nP1k4/Nn1b3r/3Q3N/qr1p2q1/1R2b1b1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 Qb6 Bh6 Qc7 Bc1 Qd8 h4 f5 exf5 g5 c3 dxc3 hxg5 Bh6 Ra4 Bg7 Ra1 Bf8 Ke2 Kf7 Kf3 d5 Kg4 e5 Kh5 a5 f4 c2 b4 e4 g4 e3 f6 Ke6 g6 d4 g5 a4 f7 d3 g7 e2 g6 e1B b6 a3 f5+ Kd6 f6 a2 Bh6 c1B Nh3 Be6 Nc3 Na6 Na4 Ne7 g8B Kd5 g7 Be3 b5 Qc7 Be2 Nc6 Rf1 Bfc5 f8N Nab4 f7 Bd6 Nd7 Bg1 f8N Qa7 Nb8 Na5 Nfd7 d2 Qb1 Qa6 Ndc5 Ra7 Qc2 Rc7 Rb1 a1B Rf7 Bad4 Nb7 Rc6 Qg6 Rc2 Re7 Rb2 Qd3 Qa7 Bg5 h6 Bf6 Rh7 Kg6 h5 Kg5 h4 Bh5 Rh6 Be8 Rh8 Bh7 Qa8 g8R Qa7 Kh6 Qa6 Nf2 h3 Bg7 h2 Nh3 h1Q Rf8 Qg2 Rf1 Rf8 Bg8 Rf4 Ra1 Bef2 Rfb1 Be1 Nd8 Qc8 Ra3 Qc4 Nb7 Qa2 Nac5 Nb3 Ra6 Na5 Na4 Rh4+
1NnN1Q1N/1q2R1bk/2B3r1/K3qBnb/3R2B1/1b2p1P1/3P1RN1/b1n3r1 w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 e4 Ke7 b3 f6 e5 Ke8 Bb2 Kd7 dxe6+ Ke8 e7 Kd7 e6+ Kd6 Be5+ fxe5 e8B Ke7 f4 Kf6 f5 Kg7 b6 h5 b4 a5 g3 c5 b7 c4 f6+ Kh6 e7 e4 b5 a4 b6 h3 f7 h4 Na3 c3 Ne2 e3 Nc2 a3 Bc6 h2 e8B a2 Nf4 h3 Bd3 Rh7 Ke2 Qc7 Ne1 c2 Bed7 Rg7 Neg2 Rg6 Qf1 Kh7 Bg4 Nf6 Bdf5 Bg7 Kd3 c1N+ Kc3 Qe5+ Kb4 Ne4 f8R Nd7 b8N Ng5 b7 Nb6 Rd8 Be6 Rd4 Bf7 Qf3 Bg8 Rf1 h1B Rf2 h2 Rb1 a1B Rb2 Ra5 Ra2 Ra8 Ra7 Bd5 Ka5 Bg8+ Bb5 Bf7 Nc6 Nc8 b8N Be6 Nd8 Bb3 Na6 Rb8 Re7 Rb6 Nb8 Rc6 Nh4 Rf6 Qa8 Bf3 Nfg2 Bfd1 Qf3 h1Q Qf4 Qd6 Bc6 Bf3 Bh3 Bh5 Bhg4 Rf8 Nf3 Rf7 Ne5 Rf6 Nef7 Qe5+ Bb5 Rc6 Nh8 Rc5 Nh4 Qb7 Ng2 Ne2 Qf3 Rc1 Qf4 Rg1 Qf3 Qd6 Bc6 Nc1 Qf4 Qe6 Qd6 Qe4 Qf6 Qe6 Qf8 Qe5+
1Bk5/rrBr1Nn1/1B2r2b/3nq3/1pb1Q3/n2N1R1R/1RPR1P2/1N1Kq3 w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 h5 g4 Ra6 gxh5 Ra8 a3 Nc6 Bc4 Nb8 Ba2 b3 Bh6 bxa2 Bg5 Qb6 Bc1 Qd8 h4 e5 c6 g5 c7 d5 a4 Kd7 h6 b5 h5 b4 h7 d4 f6 e4 a5 g4 f7 d3 h6 d2+ Ke2 e3 a6 g3 a7 g2 Nh3 g1R Na3 Na6 Nf4 Nc5 Rh3 Qe8 Rb1 a1Q Rb2 Rg7 Nd3 Nf6 Qh1 d1N Qe4 Ne6 Nb1 Ba6 c8N Bc4 Nd6 Nd5 Rf3 Rd8 a8R N1c3+ Ke1 e2 Bf4 Rhg8 h8R Nb5 h7 Na3 Be3 Rb8 Bb6 Rb7 Kd2 e1R Rd8+ Kc6 Rd7 Rd1+ Ke2 Rg6 Bc7 Bh6 f8B Ng7 Nf7 Re6 Bfd6 Qe7 Bb6 Ra8 Bb8 Raa7 Rdd8 Rd7 B6c7 Kb7 Bb6 Rg1 B8c7 Rg3 Kd1 Qg5 Rhf8 Rg2 h8B Qe3 Rh3 Rgg6 Bb8 Ree7 B8c7 Rge6 Bb8 Ne8 Bhe5 Ng7 Nh8 Rf7 Bec7 Rfe7 Rff3 Rf7 Rf8 Rfe7 R8f6 Kc8 Nf7 Rb7 Rb3 Qe5 Rb2 Rc6 Rd6 Re6 Ba5 Ra6 Bab6 Raa7 Nc5 Nf4 Rd2 Nd5 Nd3 Qe1+
2r2Nrb/1n1BNqrR/6Q1/5R1P/2rrb1RP/K1NB4/2Nk2rp/1B2n3 w - - 0 1 legal: proof: d4 b5 f4 e5 fxe5 c5 a4 cxd4 axb5 g5 h3 g4 Bf4 h6 Bh2 h5 g3 h4 gxh4 g3 h5 gxh2 Kd2 Ke7 Kc1 Ke6 e4 f5 c4 d5 b4 a5 Kb2 f4 b6 f3 b7 d3 b5 d4 h4 a4 b6 d2 c5 f2 c6 d3 c7 a3+ Ka2 Nf6 Kb3 a2 Na3 Qd7 Qb1 d1R Ne2 d2 Rg1 Na6 b8N Nb4 b7 Bg7 Qd3 Ra7 Rg4 Rc1 Rb1 Qe7 Nd7 a1R b8R d1R Rb5 Bb7 c8N Nc2 Ra5 Ne8 Nf8+ Kf7 e6+ Kf6 Qa6 Rd4 e5+ Kf5 Qd6 Qd7 e7 Ra2 e6+ Be5 Qa6 Nd6 e8B Rg8 e7 Ne1 Bf7 Rad2 e8B Be4 Bc4 Qg7 Ka4 Rf7 Rb7 Rcc2 Re7 Nb7 Qh6 Qf6 Bd7+ Qe6 Kb3 Rc1 Bd5 Bh8 Qg6+ Ke5 Rc5 Rh7 Rg7 Qf7 Ne7 Ra2 Rb5 Rc8 Rc5 Rc2 Ra5 R2c7 Nc3 Rc5 Bfb5 f1R Nc2 Rg1 Ka3 Rg2 Ba2 R5c6 Bb1 Rc5 Rg5+ Kf4 Bd3 Rcc4 Rg4+ Kf3 Na1 Ke3 Rf5 Kd2 Nc2 Rh6 Qc6 Rf6 Rh7 Rfg6 Qb6 R6g7 Qc6 Nf3 Qg6 Ne1
bR2K3/B2q2P1/Rp2R2b/B2B1k2/2nnNn1P/nNq1n1Q1/4N2b/3Rr3 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 f5 g3 d5 cxd5 g4 exf5 h5 Bg2 Ra6 Bh3 Rg6 Bf1 Rg5 fxg5 h4 Bg2 hxg3 Bh3 Nh6 Bf1 Ng8 Ke2 Kf7 Ke3 c5 Ke4 e5 a4 g2 d4 g3 h4 b3 a5 c4 d6 c3 Kd5 b2 f6 Kg6 a6 c2 f7 e4 d7 e3 Ke6 e2 d5 e1Q+ Be3 c1B d6 Qf2 a7 Nc6 a8R Nf6 Qb3 Qf3 R8a6 Nd5 Ba7 Ne3 Nd2 b1N Bc4 Ne5 Ne2 g1N Ne4 g2 Bd5 Bh6 f8R Nh3 Re1 g1N Qd3 Qc7 Ke7 Nf4 Ke8 Na3 d8N N5c4 d7+ Qc6 Rg8+ Kf5 g6 Rh7 Ne6 Re7+ Kd8 Qg3 g7 Nf3 N6c5 Nd4 Nb3 Qb5 Rd1 Qe1 Rh8 Qc3 Re6 Bd2 Re8 Be1 Rh8 Bg3 Ra2 Bh2 Rg8 Rf7 Ke8 Qc6 Rh8 Qc7 d8B Re7+ Kf8 Qc6 Ba5 b6 Rg8 Bb7 Rh8 Nf1 Qg3 Ba8 Raa1 Re8+ Kf7 Nfe3 Rg8 Rf8+ Ke7 Rf6 Rb8 Qd6+ Ke8 Rg6 Qf3 Rg1 Qg3 Re1 Bb4 Nb1 Ra6 Nba3 Ba5 Qd7+
3Nb3/PK1qB2N/R2BRP2/1B2nr1n/Q2nN3/nn1p1kB1/R1q2q2/6r1 w - - 0 1 illegal: No possible last move
1nB3k1/2R1b3/1q3P2/brNKnRB1/4B1n1/2Q1PqR1/1b3NRp/1N2qn2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 g5 Bf4 gxh4 Bd2 f4 Bc1 Bb7 Be3 e5 Rh2 a5 Ra3 Ra6 Kd2 Re6 Rh1 Bd5 Be2 Re7 Bc4 Be6 Ra1 Bf5 exf5 e4 Bf1 Re5 Ke1 Re7 Bc1 e3 Ke2 Re6 Ke1 e2 Kd2 Re3 fxe3 Bh6 Nc3 Bg7 Nb1 Bf8 Kd3 Kf7 Kc4 e1B g4 h5 b4 d3 b6 d6 b5 a4 b7 d2 b6 a3 g5 a2 g6+ Kg7 Rh2 h3 Kd5 f3 c4 f2 c5 h4 c6 Nh6 c7 Ng4 c8B Rh5 Qb3 d1N Ba3 Kg8 g7 Be7 Bg2 f1N Be4 Ne5 Rg2 h2 Qc3 h1Q Nh3 Nf2 f6 Nfg4 Nf2 h3 Bb4 Kf7 g8R h2 Rg5 Qc7 Rf5 Kg8 Rg3 Qf3 Rg2 Nbc6 b8N Qb7 Na6 Nb8+ Kd4 d5 Bd6 Qc6 b7 Qb6+ Nc5 Bd2 Na3 Be1 Rc1 a1B Nb1 Bb2 Bc7 Ng6 Bf4 Rg5 Kd3 d4 Kc4 d3 Kd5 d2 Rc2 Rh5 Bg5 N6e5 Rg3 d1Q+ Rd2 Nbc6 b8R Qc1 Rb7 Nb8 Re2 Bd2 Rc7 Qe1 Qc4 Ba5 Qc3 Bb4 Nh3 Ba5 Reg2 Qfe2 Nf2 Q2d1+ Nfd3 Qf3 Nf2 Rh4 Kd4 Nh6 Kd5 Rf4 Ba6 Nhg4 Bc8 Qfd1+ Bd3 Rb4 Na4 Qde2 Nc5 Qf3+ Be4 Rb5
1qBkn1R1/bb1b1b2/P2R1NN1/b2Q1bpn/2n1rR2/PB4N1/2RK4/4B3 w - - 0 1 illegal: No possible last move
1kB4b/1n3N2/P2pN2R/3Rb2P/1BBbnr2/Nn1R4/R2QK3/r1b1b2r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 c4 hxg4 Qc2 f5 exf5 b5 Qd1 b3 d3 c5 Ba3 b4 Bc1 Ba6 Ke2 Qc7 Ke1 Bb5 cxb5 c4 Bb2 c3 Bc1 Qc4 dxc4 Rh3 Qd6 Rh7 Qd1 Rh8 f4 Kd8 a4 Kc8 h4 g5 h5 e5 c5 d6 f6 g3 f7 b2 f5 b3 a5 e4 c6 e3 c7 e2 f6 c2 b6 g4 Qd2 g2 Qf4 g3 Qd4 Nd7 Ra2 Nc5 Bd2 c1B Rh3 Bg7 f8N Nb7 f7 Nf6 Bb4 Ne4 Nf3 g1B Ng5 g2 Rd3 Bh2 Na3 b1N Nfe6 g1B Qf2 Re8 f8R b2 Rf6 Bh8 Rh6 Rf8 Nf7 Nbd2 Qe3 Nb3 Qd2 b1R a6 Rb8 Rd5 Ra1 Rd3 B2e5 Rd5 N7a5 Rd3 Bgd4 b7+ Kd7 c8B+ Kc6 Nfg5 Rf4 Nf7 Kb6 Rf3 Ka7 Rd3 Ra8 b8R Nb7 Bd7 Rh4 Re8 Rh1 Bc8 Kb8 Rg8 Bef6 Rg5 Ra7 Rd5 Bfe5 Qe3 Ng5 Kf2 e1B+ Ke2 Ne4 Qd2 Nd8 Nc5 Re7 Ne6 Nb7 Re3 Re8 Rd3 Rf8 Rf3 Rg8 Kd1 Be3 Bc4 Rg4 Ke2 B3d4 Rd3 Rf4
n1b1BNQ1/rrp3R1/PNn1b3/2nnBn1R/1k3P2/R3r3/1K1R4/1r2NB2 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 f4 a5 gxf5 g5 b4 axb4 c4 Qd5 cxd5 g4 Ke2 Bh6 Ke1 Bg5 hxg5 Kf7 Be2 Kf8 Bf1 Ke8 a4 Kd7 d4 Kd6 Kd2 h5 Kc2 b5 a5 e5 g6 b3+ Kb2 g3 g7 g2 f6 e3 f7 h4 f8N h3 a6 e2 Nd7 e1R Ra4 h2 Nf8 b4 Ka1 b2+ Ka2 e4 Ra5 b3+ Ka3 e3 Qe2 Nd7 Qd3 e2 Qg3 Ra7 Nf3 g1R Nc3 b1N+ Kb2 Nb6 Na4 Na8 Nb6 Ne7 g8B Nc3 Ra3 Nc6 Bf7 Rh3 Be3 Rc1 Be8 e1N Qg5 Rgg3 Rg1 h1N Qg8 Rg6 Rg5 Ng3 Rh5 Nf5 Bf2 Re6 Bh4 Re3 Bf6 Nc2 Bg7 N2b4 Ne1 Ne4 Bf6 Rh1 Bh8 Rc5 Bf6 Rb5 Bg7 Nc5 Be5+ Ke7 d6+ Kd8 d7 Ke7 d8R Nd5 Nbd7 Rbb7 Nb6 Be6 Rd6 Bc8 Rg6 Rg1 Ka1 b2+ Ka2 b1B+ Kb2 Ba2 Rg2 Nf6 Rg7+ Bf7 d5 Rh1 Bd4 Kd6 Bc3 Bfe6 Bd4 Nce4 Be5+ Kc5 d6 Kb4 d7 Nc5 d8R Rg1 Rdd3 Nd5 Rd2 Rb3+ Ka1 Rgg3 Ka2 Rge3 Ka1 Rb1+ Ka2 Rc1 Kb2 Rb1+
2b1b1RR/rp5b/bN1q4/B1Nb1bB1/6NP/k1NBK3/3PQnRb/5q2 w - - 0 1 illegal: No proof kernel
2n1RR2/2Q1P3/p3qqnR/1N5P/3B2N1/Bq6/nnr1qN1B/1bkBn1K1 w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 a4 cxd4 Bd2 h5 Bb4 b5 axb5 h4 Bd2 a6 Bc1 Ra7 Nc3 g5 Qd2 Bb4 Ra4 Ra8 Ra2 Rh5 gxh5 g4 Ra5 g3 Nb1 g2 Ra1 Bc3 Kf2 Ba5 Qe1 Bd2 Qd1 Be3+ Ke1 Bf2+ Kd2 Bg3 hxg3 Ra7 Ke1 Rc7 Be3 Rc6 Bd2 Rh6 Bc1 Rh8 Kf2 Ke7 e4 Ke6 c4 Ke5 b4 f5 b6 d5 b5 f3 b7 d3 b6 Kd4 e5 h3 c5 f4 c6 h2 c7 d2 e6 Qd6 g4 Nd7 b8B Ne5 b7 Ng6 g5 N8e7 Nh3 g1N Bg2 Kd3 Ba7 d4 Qe2+ Kc2 b8B d3 Kf1 f2 Bd4 Nf3 Qe5 d1N Ba3 d2 Rg1 h1Q Nc3 Ne1 Bf3 Nb2 Nb5 d1N Qc5+ Nc3 Bd1+ Kd2 Qc6 Bb7 c8R Qf3 Rf8 Nc8 Qc7 Na2 e7 Qc3 Rc1 Qb3 Rc6 Qde6 Rg3 Rh6 Rf3 Rh8 Re8 Rg8 Rd6 Be4 Rb6 Bb1 Rc6 Nh4 g6 Rh8 g7 Ng6 g8N Rh6 Bac5 Kc1 Nf6 Rh8 Ng4 Rf8 Bh8 Rf5 Bd6+ Rc5 Bd4 Rc2 Bb4 Ned3 Kg2 Ne1+ Kh2 f1Q+ Nhf2 Qfc4 Kg1 Qf6 Ba3 Qce6 Rfc3 f3 R3c5 Qe2 Rf5 Qfe6 Rff8 Qf5 Qa5 Nf4 Rh6 Ng6 Nh1 Qee6 Bbe5 Qff6 Qc7 f2+ Kh2 f1Q+ Nhf2 Qfc4 Kg1 Qcd3 Bh2 Qde2
2Nn1Nr1/R3B1P1/5bN1/b2br2B/4Bp1R/4qp1B/q1PQ3n/k4KRr w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 axb5 exf4 Kf2 a4 Ke1 Qa5 bxa5 Bb7 Ra3 Ba6 Ra1 Bc8 g4 Ke7 e4 Ke6 b6 Ke5 a6 f5 b7 d5 a7 h5 g6 d3 g5 Kd4 e5 f3 e6 a3 g7 d2+ Kf2 a2 g6 h4 e7 h3 e8B h2 Bc6 f4 Na3 Kc3 Bg2 d4 Nh3 d3 Rg1 h1R Be4 Bb4 Nc4 Ba5 Ba3 Rh5 Ng5 Be6 Ne5 Bd5 Bh3 Nc6 b8R Nh6 g8B Nd8 Nh7 Ng4+ Kf1 Rf5 Bb4+ Kb2 g7 Rh5 Ng6 Re5 Qe1 d1Q Bf7 d2 Nhf8 Qb1 Rb7 Rb8 a8N d1Q Ra7 Qd2 Nb6 Qe3 Bc5 Qd1 Rc1 a1B Nc8 Qdd4 Be7 Qa4 Qd2 Qa2 Re1 Ra8 Re2 Kb1 Be8 B1c3 Rh2 Ka1 Nd7 Re6 Ndf8 Bf6 Nh8 Rb8 Bh5 Re5 Nhg6 Ne6 Nd6 Re8 Nc8 Nd8 Nd7 Rh8 Ndf8 Rg8 Bg2 Qb2 Rh4 Qa2 Bh3 Nh2+
B7/1bp2BbP/rRn2q1p/5N2/1r2BPN1/1RN1n1Qq/4NrR1/1n1K3k w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Kd7 Qe2 Ke8 Qh5+ Kd7 h4 h6 Qg6 Nc6 h5 Na5 Qxh6 Nc6 Qg6 Nb8 h6 Ra7 Qg4 Ra5 Qg6 Ra8 h7 Ra7 Bb2 Ra4 Bf6 Ra7 Bg5 Ra8 Bh6 gxh6 d4 b5 f4 e5 a4 b3 g4 b4 a5 b2 d6 Kc6 d7+ Kd5 a6 Ke4 g5 b3 f6+ Ke3 a7 e4 f7 Qe7 d8R Qf6 d5 Qg7 d6 Bf5 d7 Qc3+ Kd1 Kf2 Ra3 e3 Bd3 Kg2 Ne2 Be4 Rg1+ Kh2 Rg2+ Kh1 Ra6 Nf6 Rb6 Bf3 Be4 Nc6 Rdb8 Bg7 f8N Rg8 d8N Ng4 Nfe6 Qf6 Nc3 b1N Nf7 b2 Nd4 Re8 Nf5 Rd8+ Ke1 Rd2 Ne5 Rc2 Qe8 Rd2 g6 Rc2 Qg8 Rd2 Ned4 e2 R8b7 Ne3 Ng4 Rc2 Rb3 Rd2 R7b6 Rc2 Kf2 e1R+ Nde2 Rb8 a8B Rd2 Ra6 Rb4 Rb6 Rc1 Qf7 Rcc2 Ke1 Rd5 Qg8 Ra5 Qd8 Ra6 Qd3 Bh8 g7 Rd2 g8B Bg7 Ned4 Rf2 Bf7 Na3 Nd1 b1Q Ne2 Qc2 Ndc3 Nb1 Qd6 Qd3 Qe6 Qh4 Qg6 Qh3 Qg5 Qd4 Qh4 Qf6 Qg3 Nb8 Bd3 Bb7 Be4 Nc4 Kd1 Nc6 Kc2 Ne3+ Kc1 Nd5 Kd1 Ne3+
5K2/R5r1/p2r1R1N/N3kPB1/2Rbn3/p1Q1B2P/3rNrB1/nbRrq3 w - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 f5 exf5 d5 g4 h5 c4 hxg4 a4 bxa4 cxd5 Qd7 Ra2 Qc7 Ra1 Qd8 Ke2 Kf7 Kd3 Kf6 Kd4 g5 f4 e6 c6 g3 h3 g2 d6 e5+ Kd5 e4 d4 g4 c7 g3 d7 e3 Qe1 e2 Nd2 Bg7 Kd6 Na6 d5 Qe8 d8N Nc5 Nf7 Rh6 Nc4 Nb3 Na5 Rb8 Qd2 e1R Ne2 g1R Bg2 Rd1 Qc3+ Rd4 Ra2 Na1 Be3 Rd1 Re1 Rd2 Rc1 Rbb2 Ra3 Ba6 c8R Bd3 Rc4 Bb1 Ra2 Rg6 Nh6 Bh8 Ra3 Qe5+ Kd7 Rg7+ Kd8 Rbc2 d6 Ra2 d7 Rd6 Qd3 Qc3 Ke8 Qb4 Kf8 a6 Rb3 Qc3 Rb7 a3 Ra7 Qe5 Qc3 Rab2 Bd5 g2 Bb7 g1R Bg2 Rgd1 d8B+ Ne7 Ng1 Rf2 Ne2 Rbd2 Bc5 Qd4 Ke8 Rf3 Bcb6 Rgg3 Bc5 Kg7 f6+ Kg6 f7 Kf6 f5 Qe5 Nd4 Rff2 Bcb6 Qe1 f8R+ Ke5 Nf3+ Kd5 Be3 Bd4 Ng1+ Ke5 Ne2 Ng8 Kf7 Rgg6 Bdg5 Nf6 Ke7 Ne4 Rf6 Rg7+ Ke8 Nc2 Kf8 Na1
1r3k1N/1B5P/3p3b/3n2KB/q5BP/1qp3R1/1NrR1b1r/QrBRN1n1 w - - 0 1 legal: proof: g4 b5 f4 h5 gxh5 e5 a4 exf4 axb5 Rh6 d3 Rh8 Nc3 c5 Ra4 c4 Ra5 Bb7 Ra1 Bd5 Nb1 c3 Nh3 Nc6 Ng1 Bc4 dxc4 Nb4 Kf2 Nxc2 Kf3 a5 Kg4 g5 h4 f6 b4 f3 e4 f2 h6 a4 e5 a3 b6 d6 e6 a2 e7 Ne1 c5 Nc2 c6 Ra7 b7 Ra8 b8R Ne1 c7 Bg7 c8B Nf3 h7 Qb6 Bh3 f1R b5 Rf2 Rh2 Rc2 Rd2 f5+ Kh5 g4 Bb7+ Kf7 e8B+ Kf8 Na3 g3 Bg4 f4 Nc4 g2 Nb2 Ne7 Rb1 a1Q Rd8 Qf2 b6 Qa4 Rc8 Qb3 Rc5 Ra2 Rg5 Nd5 Kg6 Nd4 Nf3 g1B Ne1 Ne2 Kf5 f3 Beh5 Qa4 Rg6 Qfd4 Kg5 f2 Rf6+ Ke7 Nbd3 Qac4 Bb2 f1R Ba6 Ra1 b7 Qb5 b8N Qdc4 Bb7 Rc8 Nd7 Bf2 Nf8 Qba4 Rf3 Rh1 Rg3 Qcb3 Ng6+ Kf7 Qc1 Rb8 Nh8+ Kf8 Ba3 Ng1 Qb2 Ke7 Rbd1 Rb1 Qa1 Rh2 Bc1 Kf8 Nb2 Bh6+
4BQbR/1rP2BBN/b5p1/1BnpPnq1/rN3q2/1R3N2/1b1b4/2R2K1k w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 d4 b5 f4 c5 a4 cxd4 axb5 e5 fxe5 Be7 Ra2 Ba3 Ra1 Bf8 e4 Ke7 c4 Ke6 h4 f5 c5 d3 b6 f4 a6 g6 b7 d6 h5 f3 h6 g3 a7 g2 h7 Nd7 b8N Qg5 c6 Nc5 c7 Bg7 Ra3 Ba6 Nc6 Bf6 Bb2 Nh6 Nd2 Rhb8 h8R Rb7 Nb4 Nf5 Nh3 g1B Rb3 Be3 Be2 f2+ Kf1 Bg7 Nf3 d2 Bb5 Bf4 Qa1 d1B Qa3 Bd2 Bd4 Bc2 Bb2 Bb1 Bd4 Ba2 Bb2 Kf7 e6+ Ke7 Ba1 Bb2 Rg1 Kf6 e7 Ke6 e8B Kf6 Rc3 Bf7 Rb3 Bg8 Bf7 d5 Rh1 Rab8 a8B Ra7 Bc6 Rbb7 Bce8 Ra8 Nd4 Ke5 Rg1 Qf6 Ng5 Kf4 Nh7 Qg5 Rh1 Kg4 Nf3 Kg3 Ke2 Kg2 Rc1 Kh3 Kf1 Kg3 Ne5+ Kh2 Nf3+ Kh1 Nc2 Nd7 Qf8 Nc5 Nb4 Ba3 Bg7 Bb2 e5 Raa7 Ne1 Ra8 Ke2 f1Q+ Kd1 Qff4 Ke2 Raa7 Rc4 Ra8 Nf3 Raa7 Kf1 Ra8 Bbc6 Bb5 Bcd7 Ra3 Bc6 Ba6 Bb5 Ra2 Rc1 Ra4
3nk3/1q2NRnb/qBP1BKbr/p1q2N2/3PN2N/1nR1Q2p/6b1/2RB4 w - - 0 1 legal: proof: h4 d5 f4 b5 a4 g5 axb5 gxh4 c3 e5 Qc2 exf4 Qa4 d4 Qd1 d3 Kf2 c5 Rh3 a5 Ke1 c4 Rh1 Bg7 Nf3 Bd4 cxd4 c3 Ng1 c2 Ra3 Ra6 Ra2 Rc6 Ra1 Rc3 dxc3 Qg5 Nd2 Qe7 Nb1 Qd8 Kd2 f5 g4 h5 e4 h3 b4 h4 e5 f3 Ke3 f4+ Ke4 f2 g5 f3 c4 d2 g6 h2 c5 h3 g7 Qd7 e6 Kd8 Ke5 Rh6 b6 Rf6 b5 Qa7 e7+ Ke8 b7 Rg6 b6 Be6 Be2 f1B Ra3 f2 Qe1 d1B Nd2 Kd7 e8N Bf7 Nd6 Be8 Nf5 Rg3 Ne4 Bf7 Bf4 c1N Rc3 Rg6 Nf3 Rh6 N3h4 Nf6 g8B Bg6 Be6+ Kd8 Qd2 Nb3 Qe3 Bc2 Bd1 Ne8 Rg1 Nc7 Kf6 Nc6 b8N h1Q b7 Ke8 Bg3 Nd8 Nc6 Qa6 b8R Bg2 Rb7 f1Q Ne7 Qfc4 c6 Qc5 Re1 Qhf1 Ra7 Qfb5 Bd6 Qbb7 Rh1 Qa3 Bc5 Bb1 Bb6 Qc5 Be2 Bd3 Rhc1 Bc2 Bd1 Bd3 Bc4 Nce6 Bd5 Ng7 Be6 Qa8 Rc7 Q8b7 Nc8 Be2 Rf7 Beh5 Nce7 Bh7+ Kg5 B5g6 Kf6 Qf1 Bg4 Qfb5 Bd1 Q5a6
8/b2bK3/N1NBrQB1/q1rp1pRb/k4PRr/7r/B1N2nP1/2R1r1R1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c6 hxg5 Nd7 e5 Ndf6 d3 Ne4 d4 Nd6 exd6 c5 Bd3 cxd4 Bc4 Bh6 Bf1 Bf8 Ke2 Kd7 Kf3 e5 Kg4 h5+ Kf5 a5 c4 e4 b4 e3 f4 e2 b6 Kc6+ d7 e1R b7 h4 b8N+ Kb6 c5+ Kb7 g6 a4 c6+ Kb6 c7 d3 g7 Re7 b5 Ka5 b6 d2 b7 f6 Na3 h3 Qe2 d1B Nf3 h2 Ne5 Rf7 Ke6 Rh4 Nc2 a3 Rg1 h1R Nec6+ Ka4 Qe3 R1h2 Bc4 Nh6 g8R a2 Ba3 Ra5 Na6 Bc5 b8R Ba7 Bd6 Ng4 Rb3 Rh1 Rg5 Rc5 Qe2 Rfh7 Rg3 Nf2 Qe4 Bh5 R3g4 R1h2 Rab1 a1R Ba2+ Rc4 Rbf1 R2h3 Qg6 Rc5 Rb1 Bb7 c8B Qa5 d8Q f5 Bd7 Rf7 Be8 Bc8+ Qd7 Rg7 Qf6 Rg8 Bg6 Re8+ Kf7 Re2 Qde6 Bd7 Rbd1 Rb1 Ke7 Rc1 Rd2 Rf1 Rd1 Rfe1 Rc1 Rxe6+
1K6/RB4bn/bb5k/N1qqNBb1/1Nb4P/ppQ2PR1/1R1r3r/4BB2 w - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 gxh5 Qb6 Nh3 Qc7 Ng1 Qd8 b4 a5 Qf3 a4 Qd1 Nc6 a3 Qb6 Bg2 Na5 bxa5 Qb2 Bh3 Qxa3 Bf1 Qa2 Ke2 Kf7 Kf3 b5 Ke4 d5+ Ke5 g5 c4 Kg7 h4 d3 f3 g4 f6+ Kh7 a6 e6 f7 d4 a7 g3 c5 g2 h6 d2 c6 b4 c7 b3 Na3 d3 Ne2 g1B Qc2 d1Q Nd4 Ba6 c8B Nf6 Bd2 Bg7 Kd6 e5 Kc7 e4 f8R e3 Nc4 e2 Qc3 e1B Nc2 Qa3 Rg8 Qac1 Na5 Bb6+ Kc6 Kg6 Rh2 Nh7 Nb4 Bef2 Be6 Bfe3 Be1 Bg5 Rb2 d2 Bf5+ Kh5 Raa2 Re8 a8B Re2 Bb7 Rh2 Kd7 Bc4 Kc8 a3 Kb8 Ba6 Rc8 Re8 Ra1 Ree2 Rc7 Qdc2 Re7 d1B Rf7 Qe4 Rc7 Nf8 h7 Rd2 h8N Bde2 Nf7 Qd5 Ne5 Bec4 Rd7 Kh6 Rab1 Rd1 Rg2 Nh7 Rg3 Rdd2 Rb2 Rh1 Bc8 Rhh2 Ra7 Qc2 Bb7 Qc1 Qd3 Qc3 Qd4 Qe3 Qc3 Qec5
1r6/1N2q3/b1b1p2k/K2QP1RN/1b2RqBP/np3N2/1B3r2/Bb1RN2q w - - 0 1 legal: proof: b4 a5 g4 g5 a4 d5 c4 b5 cxd5 h5 f4 hxg4 fxg5 Nc6 Bh3 Na7 Bg2 axb4 Bf1 b3 Nf3 b4 Ng1 Nb5 axb5 Rh6 Kf2 Rh5 Ke1 Rh8 d4 f5 Kd2 Kf7 e4 Kg6 h4 c5 d6 g3 b6 f4 b7 c4 b8B g2 d5 e6 d7 f3 d6 b2 Ra5 b3 Kc3 f2 Kb4 c3 Be2 f1B Na3 b1B Qd5 c2 Bb2 c1Q Bg4 Kh7 g6+ Kh6 g7 Bb5 Nf3 g1Q Nc2 Bf1 Nce1 Qdg5 d8N Ne7 d7 Bg2 B8e5 Qcf4 Nb7 Rb8 d8R Nf5+ Kb5 Ne3 g8N+ Kg6 Ka4 Bb4 Nf6 Kh6 Nh5 Qe7 Rg8 Nc4 Rg5 Qf1 Rc5 Na3 Rc4 Re8 Ba1 Rg8 Beb2 Rf8 e5 Rf5 Re4 Rf6 Nc5 Ba6 Nb7 Qg1 Nc2 Qgh2 Rd1 Qh1 Nce1 Qe3 Ng1 Rf2 Ngf3 Qf4 Qd3 Qg1 Rc4 Rd2 Nh2 Bd6 Ka5 Bc6 Nhf3 Rf2 Re4 Qh1 Qd5 Bb4+
2kB1NBB/Q3P1K1/1qnq3r/R3nbPN/p3N3/1n1p3R/n1r5/B3R1q1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 f5 gxf5 g5 h4 g4 Ra3 Be7 Ra1 Bg5 hxg5 Ba6 Nd2 Bb7 Nb1 Bc8 Kd2 d5 Kd3 Kd7 e4 h5 c4 a5 b4 a4 e5 h4 c5 f3 b6 h3 e6+ Ke7 c6 g3 b7 g2 c7 h2 f6+ Kd6 e7 Kd7 b5 f2 f7 Ra7 f8N+ Ke8 b6 Bg4 c8R Bh3 Nc3 Be6 Rc5 Bf5+ Ne4 Nc6 b8B Nh6 b7 Nf7 Ra5 Rh6 Bc7 Qd6 Nh3 g1Q b8B Rb7 Bf4 Rb2 Be5 Rc2 Bg2 f1N Nf4 Qf2 Bd8 Nd2 Bh8 Nb3 Nh5 Qg1 Bbc7 Qf2 Re1 h1Q Ra3 Qhg1 Qb1 Qe6 Bce5 Qd6 Ng6 Kd7 Nf8+ Kc8 Qc1 Qc7 Qe3 Qg3 Bef6 Qgd6 Bh3 Qb6 Be5 Be6 Bf5 Bd7 Bh7 Bf5 Bg8 Nd2 Ke2 Nb3+ Kf3 d3 Ba1 Nfe5+ Kf4 d2 Qc5 d1N Qd4 Nd2 Rh3 Nc3 Qf2 d4 Qe3 d3 Qd4 Bh7 Qf2 Ng6+ Kf5 Na2 Qe3 Nb3 Qd4 Qdc7 Kf6 Nge5+ Kg7 Bf5 Qe3 Qd6 Qc5 Qa6 Qa7 Qab6
4BBq1/1N1qP2R/2q1PqN1/2R4n/bB1N1Qp1/1N5K/1brr2p1/Rb1k4 w - - 0 1 legal: proof: f4 d5 e4 e5 fxe5 h5 a4 b5 axb5 d4 c4 Nc6 g4 hxg4 e6 Nce7 e5 Nd5 cxd5 Bb4 Kf2 Bxd2 Ke2 Bb4 Kf2 Be7 Ke1 Bf8 Kf2 Ke7 Kg3 g5 b4 c5 h4 a5 h5 f5 h6 d3 b6 f4+ Kh2 f3 b5 g3+ Kh3 g2 b7 f2 b8R d2 h7 a4 b6 c4 b7 a3 Bb2 a2 Qc2 d1B Nf3 c3 Bd3 f1Q Bc4 Qd3 Kg3 Bg7 Qf2 c2 Bc3 c1Q Bb5 Nf6 Nd2 Ba4 Kh3 Nh5 Nb3 Qg8 Be8 Qdd2 Ba5 Qc6 Nfd4 Bd7 Rd8 Rc8 b8B Qd1 Qf4 Bf6 Rc1 a1Q Rc5 Rc7 Rh2 Bc8 Ba7 Ba6 Bb8 Bd3 Bb4 Rd7 Bc7 Bb1 Ra8 Qb2 Bca5 Qf2 Ba3 Qff1 B5b4 Bg7 Qc1 Qf6 Qf4 Qd3+ Qe3 Qdb5 Qf4 Rd8 Rh1 Qd7 Ra6 Qbc6 d6+ Kf8 Nf5 Qdc7 Kg4 Ng3 Rb5 Qh6 d7+ Qc5 Nc1 Bac2 Bh5 Qf7 Bd2 Qfg6 e7+ Kf7 e6+ Kf6 Bdb4 Q7d6 Qf1 Ke5 Bb2+ Ke4 Ra1 Ba4 Nb3 Qd2 Qf2 Kd3 Qf4 Kc2 Rh4 Rc8 d8N Kd1 Nb7 Rhd8 h8N Qcd5 Rh2 Rc2 Rc5 Qc6 Rh3 Qgh7 Be8 Qg8 Rh4 Qg6 Rh7 Nh5 Kh3 Qdd6 Be5 Qdc7 Bb2 Rdd2 Be5 Q6f7 Ng6 Q7d7 Bb2 Bh8 Bg7 Qff8 Bh6 Bb2 Nfd4 Qf6 Bf8 g4+
N3K2R/1R2p2q/3nB1n1/2RN1q2/1n1P1b2/R1P2B2/2p1N2k/2BbbQrb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 g5 axb5 gxh4 Bd3 f5 exf5 c3 Bf1 c2 d3 a5 Qd2 c5 Qf4 c4 Qd4 c3 Qg4 Ra7 Qd1 Rc7 Be3 c1B Bc5 c2 Ba3 Rc3 bxc3 Bf4 Bd6 Be3 Ba3 Bc1 Ke2 Kd7 Kf3 h5 Ke4 h3 Kd5 h2 f4 h4 g4 a4 g5 h3 g6 Nh6 b6 Bb2 f6 Qe8 d4 Nf5 g7 Nh4 g8B Bh6 f7 Qf8 b7 Bc1 f5 Bhd2 f6 Ng6 Ne2 Nc6 b8R Be1 Bg2 Bf4 Bc1 a3 Bf3 a2 Nd2 Nb4+ Kc5 Ke6 Ne4 Kf5 Rb7 Qh6 f8N Qh7 f7 Bd7 Rf1 h1B Nf6 h2 Nd5 Kg5 Rf2 Kh4 Ne6 Kh3 Nec7 Bg4 f8R Bh5 Bf7 Rg8 Na8 Rg7 Rh8 Rg8 Rb1 a1Q Rb3 Qa6 Ra3 Qe6 Qd3 Qf5 Be6 Bg4 Ng1+ Kg3 Qf1 Rg7 Re2 Bh5 Re5 Rg8 Be4 Bd1 Bf3 Nf8 Qe2 Bg2 Ne3 h1N Qf1 Kh2 Ne2 Nf2 Kb6 Rg3 Kc7 Ne4 Kd8 Bh1 Ke8 Rg1 Rc5 Ng6 Nd5 Nd6+
Br1N1N1n/P7/p4nq1/2P2BNR/3n2QB/1p1R4/k1qB1bRK/nq3r2 w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 b4 cxd4 h4 gxh4 b5 d3 a3 d5 a4 a6 Bg5 Qb6 Bc1 Qa7 b6 Bd7 bxa7 b5 Bh6 b4 Bc1 Bb5 axb5 Bg7 Rh3 Bh6 Rh1 Bf8 c4 Kd7 g4 Kd6 f4 Kc5 Kf2 e5 Kg2 h5 b6 b3 f6 Kb4 f7 d2 g5 d4 b7 e4 g6 h3+ Kg3 d3 g7 e3 f5 e2 f6 e1N Ra3 h4+ Kh2 Nd7 b8N Nh6 g8B Bc5 f8B Nf7 Bg2 Nc2 Ra2 Na1 Qg4 d1Q Na3 d2 Bh7 Qc2 Be7 d1N Bd2+ Nc3 Bf5 Rf8 Nb5 Nh8 f7 Nf6 Nd7 Rab8 Nd6 Bf2 Rb2 Ka3 c5 Ne2 Nf3 Nd4 Ng5 Ne4 Nb7 Nf6 Rbb1 Ka2 Rbd1 Rfe8 Bd8 Re1 f8R Rf1 Rf7 Ng6 Nf8 Nh8 Bc8 Qg6 Rg1 Qc2 Rh7 Qg6 Rh5 Qc2 Kh1 h2 Be7 Qg6 Nd8 Qc2 Bd5 Qg6 Kg2 Qc2 Kh3 Qg6 Rg2 h1Q+ Rh2 Qc2 Ba8 Qhe4 Rg2 Qg6 Kh2 h3 Bf5 Ka3 Ba5 Ka2 Rd3 Bg1+ Kg3 h2 Bd2 Be3 Kh3 h1Q+ Kg3 Qg1 Kh3 Rf4 Kg3 Qgb1 Kh2 Rf1 Nge6 Nh7 Bh4 Nf6 Ng5 Bf2
3B1K2/k3B3/r3R1R1/1P1PpNq1/r3BpR1/1N2bN1q/2Q2q2/1b1bbB1r w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 b5 c4 bxc4 a4 g5 h4 Nh6 f5 Na6 d4 gxh4 d6 Nc5 d5 Ne6 fxe6 Nf5 Bf4 Nd4 Bc1 Nb5 axb5 Bg7 Ra2 Bh6 Ra1 Bf8 Kf2 c5 Kf3 f5 g4 a5 b4 h5 e7 Kd7 e8R h3 g5 h2 b6 c3 g6 c2 b7 a4 b8B f4 Ke4 c4 Kf5 c3 g7 h4 Kg6 a3 Kf7 a2 g8B h3 b5 Ra6 Qh5 Qg5 Ba3 c1B Nf3 c2 Qg6 Be3 Rg1 c1Q Qc2 h1B Bh7 h2 Rg4 Qd2 Be4 Qf2 Nbd2 Rh6 Rd1 a1R Nb3 Bg2 Bc7 h1Q Bc5 Qh3 Bd8 R1a4 Re6 Be7 Rd3 Bf6 Kf8 Rh7 Nfd4 Bf3 Nf5 Bd1 Rc3 Qg6 Ba3 Bh4 Rc6 Qg5 Rb6 Bb7 Bc5 Kc8 d7+ Kb8 Bce7 Ka7 Rg6 Rh6 Rbe6 Bc6 Bc7 Bb7 d8N Bc8 Nf7 Rh7 Bcd8 Bg3 N7d6 Rh5 Nh4 Bd7 Ref6 Bf5 Re6 Rh7 Beg2 Bd3 Ndf5 Be4 Nf3 Bd3 Qa2 Bb1 Qc2 Qe1 Nh2 Qhh5 Qb2 Qd2 Bf3 Be1 Qc2 Qf2 Be4 Qhh4 Nf3 Qhg3 Rd6 Rh1 Rde6 Qh3
1k2B1NN/r1pp1q2/3n3r/B2Q1rq1/2RBnNRR/7N/3P2P1/K2rrr2 w - - 0 1 illegal: No possible last move, all moves rejected
4n2r/2B2RNN/1q1rB2R/pn6/N1P1k1pb/Kb1pN1P1/Q3q3/Bb5R w - - 0 1 legal: proof: h4 c5 e4 g5 d4 cxd4 a4 f5 f4 b5 axb5 e5 exf5 exf4 Qd2 g4 Qd1 Qg5 hxg5 Be7 Be2 Ba3 Bf1 Bf8 Kd2 Kf7 b4 h5 g6+ Kf6 b6 Ke5 b5 a5 g7 d5 g3 f3 f6 h4 f7 h3 b7 f2 b6 d3 Kc3 h2 Kb3 d2 Nh3 d4 Nf4 Bd7 Ng2 Bf5 Bb2 Rh6 Nc3 Be7 f8N Bd7 Ne6 Rf6 Na4 Rg6 Qb1 d1B Bc4 f1Q Ne3 Qf2 Qa2 Nf6 g8N Ke4 Ng7 Bf5 Be6 Nc6 b8R Ne8 b7 Bh4 Ka3 Qe2 c4 Bb3 Raf1 Na7 Ba1 Rh6 Rc8 Rh8 Rc6 Rd8 b8B Rd6 Bc7 Bh7 Rhg1 h1Q Rf7 Qhf3 Rh1 Qf6 Rc5 Qd8 Rh5 Qb8 Rh6 Qb6 Ne7 Ke5 Ng8 Bb1 Nf1 Ke4 Ne3 d3 Nf6+ Kf3 Nh7+ Ke4 Be5 Qc6 Bb2 Qb6 Ba1 Nb5+
Rq2RB2/2nPn1R1/PN2r3/p1N1kq2/bp4b1/2K2B1b/2BN2p1/QRr5 w - - 0 1 illegal: No possible last move, all moves rejected
R4nN1/2NP1p1B/1N2BR2/n2p2qq/1k2pP2/q2Q2Br/2B1K1rR/b1b5 w - - 0 1 illegal: No possible last move
r2N4/PB2qN1r/B3Pnp1/5kq1/2b1p1RR/1qb4n/1pN5/RRQ1KB2 w - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 a5 g4 Qb6 gxh5 Qd8 b4 axb4 f5 e6 fxe6 d6 e7 Kd7 e4 Rh6 e5 Rh8 e6+ Kc7 Bb2 Kc6 Be5 dxe5 e8R b5 h4 f5 c4 b3 a4 e4 a5 b2 h6 b4 h7 f4 a6 f3 a7 b3 h5 Qf6 h6 Qg6 Qc1 Qf5 Na3 b1Q Ne2 Na6 Nc2 Nf6 Ned4+ Kc7 c6 Kd6 c7 Ke5 c5 g6 c6 Nc5 Rh4 Ba6 c8B Bg7 c7 Bc4 Ba6 Qg5 Nc6+ Kf5 c8B b2 Bcb7 Qa2 Rf8 Qb3 Nd8 f2+ Kd1 Qgg3 Rg4 Nd3 Rf7 Nf4 Rd7 Re8 h8N Nh3 h7 Re7 Nhf7 Qh4 h8R Qg5 Rhh4 Bh8 Ne5 Rh7 Nef7 Bg7 Rd3 Bh8 Re3 Bg7 Re1 Bh8 Be2 f1Q Rb1 Qff4 Bf1 Qc7 Ra1 Bd5 Ke2 Qe7 Rd1 Bc4+ Ke1 Qf4 Qe3 Qg5 Rdb1 Ng8 Qc5+ Be5 Qe3 Nf6 Qc1 Bc3+
2BQ4/1n3N2/RNKN2P1/6p1/nR3pRr/qq1bB2r/1p2P1r1/B2nk1N1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 g5 Ra6 Qb3 Ra4 Qd1 Ra8 h3 f5 h4 Be7 h5 Bf6 gxf6 g5 Rh2 Qd7 Rh3 Qg7 Rh1 Qg6 hxg6 Ra7 Nf3 Ra5 Ng1 Ra8 Kf2 Kd7 Kf3 Kd6 a4 Ke5 a5 Kd4 a6 c5 a7 b5 d6 h5 d3 b3 d7 b4 d8N c4 f7 b2 f8N b3 Nh7 h4 Nc3 b1Q Ra2 h3 Ba3 h2 Nb7 Ne7 Nd5 c3 Nb6 c2 Nd8 Kc3 d4 c1Q d5 Nd7 d6 Nc5 d7 Nc6 Rb2 Na5 Qd6 Nab7 Bh3 Na4 Nf6 Rh4 Bc5 Qa2 Rb1 Qca3 Nf7 Qc2 Qc7 Kd2 d8B Be6 Rb2 Bc4 Be3+ Ke1 Ne4 Bd3 Bf6 Rah8 a8R Rg4 Ra5 Rhh4 Qd8 Rg2 Ra6 Qc3 Ned6 Qc4 Rc2 Qe6 Ba1 b2 Rc3 Qeb3 Rc4 Rgg4 Bf1 Rg2 Rb4 Rgg4 Nh3 Rg2 Rg1 h1N Ra5 Nf2 Ra6 Rgg4 Rg3 Nd1 Ng1 Rh3 Bg2 Rgh4 Bf1 Rh2 Rg4 Rh1 Kg2 f3+ Kg3 f2 Kf3 f4 Bh3 Bc4 Ke4 f1R Kd4 Bd3 Ke5 Rf2 Kd4 Qc2 Kd5 Qcb3+ Kc6 Rhh2 Rg2 Rf3 Bc8 Rfh3 Rg4 Rg2
B4r2/PN1R2qN/1BrR1p1P/2N1q1b1/1Q2p3/Bp6/Kn1q3R/bN4kr w - - 0 1 illegal: No possible last move, all moves rejected
1bBNkb1B/4P1RN/1RpqnnrK/Bp2Q3/4P3/3bR3/1p4Nn/1B5n w - - 0 1 legal: proof: c4 b5 b4 a5 f4 axb4 g4 g5 h4 e5 fxe5 f5 Nf3 d5 cxd5 Ra6 Ng1 Rg6 Nc3 fxg4 Nb1 g3 Bh3 g4 Bf1 Rg5 hxg5 Kd7 Qa4 Ke7 Qd1 Ke8 e4 h5 Ke2 c6 Ke3 b3 Kf4 h4 d4 g2 a4 g3 d6 h3 d5 h2 g6 Na6 d7+ Ke7 Kg5 Nf6 g7 Rh7 g8R Qe8 d8B+ Kf7 d6 Qe6 a5 Rh8 d7 Nh5 Nf3 g1N Nbd2 g2 Nh4 Ng7 Bd3 Qd6 Qh5+ Ke6 Ndf3 Rh6 Bb2 Rh7 Bb1 Ne8 Rg7 Nb4 a6 Rh6 a7 Nc2 a8B Rf6 Ba5 Nd4 Bb7 Rh6 Bbc3 b2 Ra4 Nf6 Ra2 Nge2 Re1 g1B Ng2 Nf4 Re3 h1N Ra1 Bh2 Ba6 Be7 d8N+ Kd7 Ra2 Bg3 Qh2 Ke8 e6 Bd7 Bc8 Bf8 e7 Be6 Ra4 Bc4 Ra3 Rh4 Ra1 Rg4+ Kh6 Bf1 Ng5 Nfe6 Nh7 Bd3 Ra4 Nf3 Ra3 Be1 Qe5 Bg3 Qf4 Nd5 Bab4 Bh4 Ra6 Qb8 Ba5 Bg3 Rb6 Nh2 Qg5 Bc7 Bf6 Bd6 Qe5 Qc7 Kh5 Qb8 Rf7 Rg6 Bh8 Qc7 Rg7 Qd7 Re1 Bb8 Re2 Qd6 Re3 Rg3 Kh6 Nf6 Ra6 Rg4 Rb6 Rg6+
2qr2r1/2q2PP1/2Q1RR2/1pBbb1p1/2N2n2/1pk3NB/2b1B3/N1KBR1b1 w - - 0 1 legal: proof: c4 a5 g4 f5 b4 d5 cxd5 g5 d4 Nd7 h4 Ne5 h5 Ng6 hxg6 e5 dxe5 fxg4 Qd3 axb4 Qc2 Ra3 Qd1 Ra8 Kd2 Ke7 f4 b5 e4 c5 a4 h5 g7 b3 d6+ Ke6 a5 c4 d7 g3 a6 h4 a7 h3 f5+ Ke7 e6 Kf6 e5+ Ke7 Ne2 h2 Qc2 g2 Ra6 g1Q Na3 Rh3 Ng3 Rh6 Be2 Qgb6 Re1 Qe8 d8N h1B Nb7 Rh4 Na5 c3+ Kd1 Re4 Be3 Qc7 N5c4 Nf6 Kc1 Nd5 Rc6 Rb8 a8B Nf4 Bd1 Rd4 f6+ Kd8 f7 Ke7 Qg6 Rd8 Nc2 Bd5 Na1 c2 Rd6 Bcb7 Bc5 Qed7 Qe4 Qdc8 Qh1 Be4 Qh6 Bh7 Qg6 Bh1 Baf3 Bg2 Bfe2 Bd5 Kb2 c1B+ Kb1 Ba3 Qe4 Bb4 Kc1 Bc3 Qg2 Re8 Qh1 Bc2 Ra6+ Kd8 e7+ Kd7 Rf6 Rd8 e6+ Kc6 e8R Be5 Qe4 Bfd6 e7 Bd4 Rf8 Bg1 e8B+ Kb7 Qh1 Ka6 Bd7 Ra8 Be6 Be5 Re8 Rb8 Nd6 Ka5 Bh3 Ka4 Nc4 Ra8 Ree6 Rg8 Bf2 Kb4 Bc5+ Kc3 Qg2 Ra6 Qh1 Rd6 Qe4 Rdd8 Qg6 Bg2 Qe4 Bh1 Qc6 Bd5
2Bkn1B1/p2npBq1/3rn2N/N4bn1/3RR3/B1P2P2/2K1pn1n/1R1Q1N2 w - - 0 1 legal: proof: a4 c5 h4 f5 d4 b5 dxc5 g5 e3 Bh6 e4 g4 f3 Bg5 hxg5 fxe4 g3 bxa4 Qd2 Na6 Qd5 Rb8 Qd1 Rb6 Qd4 Rf6 Qd1 Rf4 gxf4 Qc7 Qd6 Qb6 Qd1 Qd8 Kd2 h5 b4 d5 g6 d4 c3 e3+ Kd3 g3 g7 g2 f5 a3 b5 e2 f6 a2 b6 h4 b7 h3 b8N h2 c6 Bf5+ Kd2 d3 c7 Qd4 c8B Rh6 f7+ Kd8 Nh3 g1N Ng5 Rd6 Bh3 Nf6 f8R+ Ne8 g8B Nc5 Ba3 Qg7 Bce6 Nd7 Bef7 Bh7 Kc1 d2+ Kb2 Bf5 Nc6+ Kc7 Na5 Kd8 Bg4 Nh3 Rg1 h1N Rg2 Be6 Kc2 Ng3 Bf5 Nf1 Rg4 Nh2 Rd4 Nf6 Bg4 Bf5+ Re4 Bh7 Bc8 Nd7 Qc1 d1N Nd2 Bf5 Rb1 Ndf2 Nf1 Nd3 Qd1 Ndf2 Nh7 Ng5 Nf6 Nh7 Ng4 Ng5 Nh6 a1N+ Kb2 Nb3 Kc2 Bg4 Bd5 Nbc5 Rff4 Bf5 Bdf7 Nce6 Rh4 Bg4 Rd4 Bh3 Rhe4 Bf5
1K1N1qn1/1BN1pQ2/1p1b1RP1/1b2N1b1/k3b1q1/3b1BpR/2n1P2B/1R5N w - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c3 f5 c4 fxg4 cxd5 c5 Bb2 c4 Ba3 Kf7 Bc1 Ke8 h4 h5 Be3 g5 Bf4 g3 Na3 g4 Bc1 Ra5 Nb1 Rc5 dxc5 Rh7 Na3 Rg7 Nb1 Rg5 hxg5 Bg7 Ba3 Bh6 Bc1 Bf8 Kd2 Kd7 Ke3 h4 Kd4 h3 f4 c3 a4 b3 d6 Kc6 a5 Kb5 Kd5 b6 d7 g2 a6 h2 a7 c2 a8N b2 g6 Qe8 d8N Kb4 c6 Bh6 c7 Kb3 f5 Qf8 f6 Be3 f7 Nd7 Kc6 Qh6 f8R Ngf6 Nh3 g1Q Bg2 Ba6 c8B Nd5 Bb7 Bf4 Qf1 Bd6 Rf6 Qf8 Nf2 Ne3 Na3 b1B Bf3 Ka4 Nc7 Bd3 Bb2 c1B Be5 Nc2 Nc4+ Ba2 Rb1 Bg5 Bf4 Qg3 Ne5 Bac4 Qh3 Ba6 Qh7 Qh3 Qf7 Qh5 Rhc1 h1B Bh2 g3 Rg1 Bg2 Nh1 Qg4 Rgf1 Nc5 Rf2 Ne4 Rff1 Qh4 Kd7 Bab5+ Kc8 Qh3+ Kb8 Qg4 Re6 Nf6 Rg1 Ng8 Rf6 Qf5 Rgc1 Ne1 Rc5 Nc2 Rd5 Qe6 Rd4+ Qc4 Rh4 Qf4 Rh3 Qg4 Bfd5 Bge4 Bdc6 Bf5 Bf3 Bfe4
1rKnk3/1B2r3/2p2Q2/1N1qPpRP/4R3/2N1Bpq1/1BnR1N1r/q2q1R2 w - - 0 1 illegal: No possible last move, all moves rejected
4N3/b1Npnb1q/rPrR3B/nNp2kB1/p7/1p1P4/Bn2N3/1R1KQ2R w - - 0 1 legal: proof: b4 h5 g4 b5 gxh5 f5 e4 c6 exf5 Qc7 a3 Qg3 a4 bxa4 b5 Qb3 cxb3 axb3 f4 Kf7 h4 Kf6 h6 e5 h7 g5 h5 a5 b6 g4 h6 a4 Bd3 g3 Nc3 c5 Bb1 e4 d3 g2 Ba2 e3 Nge2 g1N Rb1 Bg7 Nb5 Ba6 Bd2 Ke7 f6+ Ke6 f7 Be5 f8B Nc6 f5+ Kf6 Qc1 Nge7 Kd1 Nf3 Qc3 Kg5 f6 Na5 f7 Bb8 Bc1 Ba7 Qe1 Rg8 h8N Rg6 h7 Kf5 Bh6 Nd2 f8N Rc6 Nf7 Ndc4 h8R Bb7 Bd2 Ba6 Ne6 Bb7 Nec3 Ba6 Nec7 e2+ Kc1 Bb7 Bdg5 Ba6 Rg8 Bb7 Rg6 Ba6 Qd1 e1Q Rd6 Qh4 Ne2 Qh5 Qd2 Qg6 Qc3 Qh7 Qe1 Ne3 Na3 Bb8 Rd4 Bc4 Nab5 Ra6 Kd2 Ba7 Nfd6+ Kg6 Kc1 Bf7 Nde8 Kf5 Rd6 Nec4 Kd1 Nb2+
2NBR1R1/1N4pn/2NpR3/4qP1n/4N2p/n4Pbp/k1Kn3r/1q1BBQ2 w - - 0 1 illegal: No possible last move
1R1N1nb1/1BbQ1pK1/n1pR3P/k1pb1RN1/7B/1p1R1b1P/1B5r/4N2b w - - 0 1 illegal: No proof kernel
6NN/1b1r2r1/nQR3K1/1qr1q2B/3PNPb1/2r1N1rk/R2B4/2BRbn1n w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kf4 c5 Kg5 e5+ Kf5 h5 g4 a4 f4 h3 b4 h2 d4 a3 g5 h4 g6 a2 b6 e3 g7 e2 d6 e1Q b7 e4 b5 e3 b6 h3 Bc4 e2 Qb3 Ra3 Qb4 Qg5+ Ke4 Rh5 Bd3 Ke6 d7 c4 d8R c3 Rd5 c2 Nc3 Ne7 g8N Nf5 Bd2 c1R Nf3 Ne3 Rc5 Nf1 Nd5 Rcc3 Ne3 Na6 b8N Rh7 b7 Rg7 Rg1 h1B Nc6 h2 b8B Bb7 Rd1 a1R Qb6 Rac1 Bd6 Rd7 Rc4 Qb5 Rg2 Rab3 Ba3 Bb4 Rf2 Bg2 Bb2 h1N Bb1 R1c2 Bbc1 Bh3 Rc5 Bg4 Rc4 Kf7 Ng5+ Kg6 Rc5 Kh5 Ke5 Kh4 Kf6 Ba8 Kg6 Bb7 Ne4 Kh3 Nd8 Ba5 Rc8 Rc5 Rc6 R2c3 Nf7 Ra3 Nd5 Rg3 Ne3 Rac3 Ba2 Bc8 Kh6 Re7 Nef6 Bgf5 Ned5 Ra3 Nh8 Rg1 Bc3 Rgg7 Nf7 Bg4 Nh8 Rd7 Bb1 Bb7 Bg6 Rb3 Bh5 Ra3 Bb4 Rg3 Rg2 Qc3 Rf2 e1R Ra2 Qe3 Bc3 Qe7 Ne4 Qe5 Bb4 Re2 Ne3 Rec2 Bc3 Rgf7 Kg6 Bb4 B3b2 Be1 Bd2 R2c3 Bbc1 Rg7+
Bnr2RNB/rqRQ2Nk/1R3rq1/2P5/n1bb1K2/1bn4b/3Bb1P1/3R1N2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 Kf3 a5 e4 d5 b4 f5 c4 Kf7 b6 Kg7 b7 d3 b5 a4 b6 a3 c5 d2 g6 a2 e5 h4 e6 d4 e7 h3 e8R h2 Ba6 d3 Qe1 d1B+ Qe2 d2 Ba3 Qd3+ Re3 Rh6 Bb4 Ne7 Nh3 Nd5 Ba3 Bb3 Rd1 h1Q Ng5 Nc3 Bb4 Na4 Ne6+ Kh8 g7+ Kh7 g8N Bg7 Bb5 Bd4 Bc6 Rf6 Ng7 Qa6 Re7 Qh6 Qe4 Qg6 Qd3 Qa7 Rf1 d1N Nd2 Ndc3 Rad1 a1R Rc7 Ra2 Rf2 Qa6 Nf1 Ra7 Rb1 Re2 Rc1 Re8 Rd1 Bce6 Be4 Rc8 Rb2 Nd7 b8R Qb7 Ra8 Nb8 Qb5 Nd5 Bd2 Bd7 Ke2 f3+ Kd3 Be6 Qd7 f2 Ke2 f4 Kf3 Ndc3 Rbb1 Qa6 b7 Bh3 Bc6 Ba2 Rb6 Bb3 Ng3 f1B Be4 Nc6 b8B Bfc4 Nf1 Qb5 Rcb7 Qa6 Be5 Nb8 Rc7 Qb7 Nf5+ Rf7 Bg7 Rff8 Bh8+ Rf7 Ng7 Rf6 Bd5 Rcf8 Be3 Na6 Nh2 Qb8 Kf2 f3 Be4 Qc8 Rab8 Be2 Ba8 Qb7 Rbc8 Nb8 Re8 Qc2 Kg3 f2 Bd2 Bec4 Rec8 f1B Rd8 Bfe2 Nf1 Re8 Rdc8 Re7 Rf8 Re8 Rbc6 Rc8 Rb6 Re6 Kf4 Qg6 Rd8 Rd6 Rf8 Rf6+
n1kr2R1/4P2R/3b2b1/rn6/4bB2/bNq1P1qN/1QbBB1N1/q2BRnK1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 a5 g4 h5 c4 f5 b4 d5 e6 a4 g5 a3 c5 f4 e3 f3 c6 d3 g6 d2 g7 h3 b6 h2 c7 a2 b7 h4 b5 d4 b6 h3 Bb5+ Nc6 b8R d3 b7 Qd6 Bb2 Ne7 g8B Nd5 Qf1 d1B Nd2 Bc2 Qc1 Ra5 Nc4 d2 Bf6 d1Q Ba6 Qd3 Qd2 Nb6 Re1 a1B Bc3 Na7 Qc1 Bb2 Bd2 Be5 Qb2 Qc3 Bf7+ Ke7 Bh5 Nb5 Kf1 f2 Bd1 Bd7 c8N+ Kd8 Ne7+ Bc8 Ng6 Na8 Nh4 Bf4 Ke2 f1N Kf2 Qde5 Ng2 Ba3 e7+ Kc7 Re2 B8f5 Re1 Bg6 Rg8 Kd7 b8B Qc7 Ba7 Bfd6 Bd4 Qb8 Be5 Qc7 Bf4 Qb8 Rg7 Rd8 Rg8 Kc7 Bb7 Kd7 Bbf3 Kc8 Bfe2 Qc7 Ne5 Qb8 Nd7 Qbc7 Nc5 Qb8 Nf3 Qc7 Ng5 Qb8 Rg1 h1B Nb3 h2 Nh3 Qbc7 Rh8 Qb8 Rh7 Qbc7 Nh4 Bhe4 Rg4 h1Q Ng2 Q7c5 Rg5 Q5e5 Rg4 Qh2 Rg5 Qg3+ Kg1 Be8 Rg8 B8g6 Qb1 Qa1 Qb2 Qc3
rR4q1/1B2R3/1n2RNRK/2b1n1b1/B6P/2P4Q/r1Nqn1Nr/qknbB3 w - - 0 1 illegal: No possible last move, all moves rejected
2bQnn1q/1kBrR2N/1Bq2NPN/R2B3r/4n2P/1r1Kn1b1/2R3b1/5Rq1 w - - 0 1 illegal: No proof kernel
bQ2rRB1/2n3rP/3q2k1/NRR1n2n/NP1b1BqR/r1N1K1Bb/8/1r5q w - - 0 1 illegal: No possible last move
1N1bbR2/1q4B1/1P2n1nP/b1RRNr2/1NQ1K3/1rbb4/nk1BB2B/r4b2 w - - 0 1 illegal: No possible last move, all moves rejected
2bRr2R/1n1n2q1/N1n5/1N2nqB1/Br1n1NRP/3R2Qn/1k1PKb2/2r2B2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 b4 Kd6 e4 g5 b6 a5 b7 c5 b5 f5 b6 g3 Nf3 c4 e5+ Kc5 e6 Kb4 d6 c3 d7 g4 e7 g2 e8B g1N Bg2 c2 Nd4 a4 Nb3 a3 Bf3 g3 Bf7 a2 Rh3 g2 Na5 Qg5 d8R Qg7 B7h5 Ne2 Nc6+ Kb3 Rd4 g1N Na3 Ra4 Bhg4 Nd7 b8N Bc5 b7 Ne7 Re4 Rb4 Bb2 Nd4 Rg3 Re8 Ne5 Nec6 Be2+ f3 Nb5 f4 Na6 Nh3 Nd3 f2+ Kf1 Ba7 Qe1 c1R b8R Bb6 Rb1 a1N Bd1+ Ka2 Ba4 Nab3 Be2 Nbc5 Ree3 Ba7 Rg4 Nb7 Ba1 Bc5 Rb3 Bb6 Re5 Ba7 Rh5 Bc5 Rh8 Bb6 Kg2 f1N Qg3 Nh2 Bf1 Nhf3 Bc3 Nfe5 Ra8 Ng5 Kf2 f3 Nf4 Nh3+ Ke3 f2 Rb8 Nc2+ Ke2 Bc5 Bd4 Ba7 Rc3 Kb2 Bc5 Bb6 Be7 Ba7 Bg5 N2d4+ Ke3 Bb6 Rd3 Bc5 Bg2 f1Q Ra8 Qh1 Bf1 Qd5 Rb8 Qdf7 Ra8 Qf5 Rb8 Ne6+ Ke2 Bf2 Re3 Nba5 Rh7 Bb7 Rd8 Bc8 Rh8 Nb7 Rd3 Ned4+
R2rR1b1/4K1Nq/P1B4k/2b4B/n1R1r2n/N1Q4P/Bb3B1n/Nb2nbr1 w - - 0 1 illegal: No possible last move
5nb1/3n3P/B3r1NP/3q3R/2Nb2RQ/B2bB1Kn/b2RBb2/2qrkbN1 w - - 0 1 illegal: No possible last move
6R1/b1Nnr3/1B1RN2N/r5N1/1n2rKQq/r1q3RB/k1Pb1bP1/1r4Bb w - - 0 1 illegal: No proof kernel
b5b1/1bk3NR/1q1Nr3/2P1r2P/RBK1n2b/R2Q1qnN/1BB1b3/1r1R2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 Kd7 b4 f5 c4 g5 e4 a5 h4 g4 h6 g3 c5 a4 b6 g2 b5 a3 h5 f3 b7 f4 h7 f2 b6 f3 e5 a2 Ba3 Nh6 Nc3 Nf5 Ne4 Ra6 Qe1 Ng3 Qd1 Be7 Be2 f1Q Bc1 f2 Nd6 Bh4 Bb2 Re8 Nf3 g1R Rb1 a1R h8R Qg2 Rh6 f1B e6+ Kc6 e7 Nd7 b8B Nf6 b7 Qb6 Rc1 Rb1 Rh7 Nfe4 Bc7 Kd7 b8R Bb7 Ng5 Qf3+ Kc2 Kc6 Rh3 Bg2 Ra8 Kd7 Qf1 Bh1 Rd1 Kc6 Nb5 d3+ Kb3 d4 Kc4 d2 Bd3 Kd7 Bc2 d3 Bf4 Kc6 Nd6 Kc7 Bfe5 Bg2 Bec3 Bh1 Rc1 d1B Bb4 d2 Qd3 Be2 Ra7 d1B Ra8 Bf1 Ra7 Bde2 Rd1 Rf8 Ra8 Rf5 Ra7 Re5 e8N+ Kd8 Ng7 Kc7 Rh2 Bh3 Ra8 Bf5 Nh3 Be6+ Kd4 Ra2 Ra3 Bg8 Rf2 Re6 Kc4 Bg2 Rb3 Ra8 Ra3 Rf8 Rff1 Rf5 Ra4 Rfe5 Ra3 Qg4 Rf8 Qf3 Rfa8 Bh1 R8a4 Ba8 Ba5 Nd2+ Kd4 Qf2+ Kc3 Bhb7 Bb4 Nde4+ Kc4 Qf3
1NB1r3/1bNb4/1Q5P/n3N2k/2B1R2B/R1PKrb2/Br1nR2b/q1qrb3 w - - 0 1 illegal: No possible last move
2b3nB/1Kn5/1N2RqPQ/1RR1N3/1q2R1N1/2br1qqB/4BPr1/k2n1n1n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 b4 d5 g4 h5 c4 d3 g5 a4 b6 d2 f6 d4 b7 d3 b5 a3 g6 a2 f7 h3 b6 h4 Qf3 d1Q Be3 d2 Ne2 h2 Nc1 h3 Be2 Na6+ Kc6 Nc7 b8R Ra3 b7 Qd3 c5 Bg7 Re1 h1N f8N h2 Nh7 Ng3 Qf8 h1N Nc3 Nf1 Nf6 Rh2 Na4 Rg2 Nb6 e6 Bh6 Kd4 Ng4 Qg3 Nd3 Kc3 Nde5 Kb2 Rc1 a1Q Qf4 Bh8 Bg7 Rd3 Qh6 Qb3 Rc4 d1N Re4 Qa6 Ra8 Ka1 b8R Qc3 Rb7 Qaa3 Rbb8 Bd7+ Kb7 Qf3 c6 Qd4 Nf7 Qdf6 Ra5 e5 Rc5 Qc3 Re3 e4 Nfe5 Ne6 c7 Qb4 c8B Nc7 Ra8+ Qa3 Raa5 Qg3 Rf3 e3 Rab5 Qb4 Rf4 Qc3 Bf3 e2 Re4 Nd2 Rg1 e1Q Rf1 Qe3 Be2 Qb4 Re1 Nf1 Nh2 Be8 Bh3 Bd7 Nhg4 Qef3 Nc8 Qg5 Nb6 Q5f4 Bf8 Bf6 Bg7 Qg5 Bh8 Q5f4 Nec4 Bc3 Nce5 Qf6 Nf7 Nh2 Bf1 Q3f5 Re6 Qff4 R1e4 Qff3 Be2 Nf1 Nfe5 Bc8+
K2B1b1q/Qn1r1N1N/NbPb2qr/P7/q1BR1RbB/7b/1k1n4/4R1qN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 a4 Bg7 h4 d5 c4 d3 f4+ Kd4 f6 e5 a5 e4 f5 d2 h6 b3 h7 b2 c5 g4 c6 g3 h5 e3 f7 e2 f8N e1B h6 g2 f6 Bh3 f7 Ra7 Qb3 d1Q Qa2 Na6 Bd3 Nc5 Qa4+ Bb4 Nd2 Kc3 Nb3 b1Q Bg5 d4 Bh4 Nf6 Qa2 b6 Bc4 d3 Qf2 d2 Ne2+ Kc2 Qg1 Nfe4 Ng3 Rd7 Rh2 Qa8 Nh1 Nb7 Nc5 Qbc1 Qe3 g1B Na6 Bd6 Rg2 Qa3 Rg4 Qe1 Qd4 d1B Rb1 Qeg3 Qe3 Bf3 Re1 Nd2 Re4 Qg6 Qf2 Rg8 h8B Bfg4 h7 Bh6 Ba1 Rh8 Baf6 Qe8 Bd8 Qa1 Nb8 Qa4+ Ka6 Bg7 Ka7 b5 Ka8 b4 Ra1 b3 Na6 b2 Qa7 Bgc5 Rd4 Bb6 Rd1 b1Q Rg1 Rg8 h8N Kb2 Rf1 Qbe1 Rg1 Qg3 Ra1 Qg1 Re1 Qh6 Nh7 Qe5 f8R Qg6 Rff4 Bgf8 Nf7 Rh8 Nf6 Rh6 Nh7 Qh8
nrnb2r1/2P1q2q/Q3B1B1/Rb1N1qR1/2n1NN1n/4qkNP/R6B/5K1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 b4 Ke7 e4 Ke6 c4 Ke5 c5 d5 c6 f5 h6 g5 c7 a5 h7 f3 h3 d3 b6 d2+ Kf2 Kf4 b7 d4 e5 d3 e6 g4 b5 a4 b6 a3 e7 a2 e8B Nd7 b8R Ba6 b7 Qe7 Rc8 Nb6 b8N Bb5 Be2 g3+ Kf1 f2 Kg2 f1N Nc6 Rb8 Nd4 Nh2 Bg4 Na8 Bgh5 Nf3 Bhg6 Nh4+ Kf1 g2+ Kf2 Ke4 Bgf7 f4 Qf1 f3 Nge2 d1N+ Ke1 g1Q Nf4 Qe3+ Nde2 Nf2 Rh2 Bh6 Be6 Bg5 Nd5 Nh1 Bb2 Bf6 Be5 Bg5 Rg2 Bf6 Rg5 d2+ Kd1 f2 Nbc3+ Kf3 Ng3 Bd3 Bg6 Bb5 Qe1 f1Q Nce4 Qfd3 Rd8 Qf1 Rd6 Qff2 Ra6 Qf1 Ra5 Qfd3 Rb1 a1Q Qg1 Qac3 Rb2 Qcd4 Bd6 Qe5 Rba2 Qf5 Qh2 Qf7 Qg1 Ne7 Bf4 Rhd8 h8N Nc8 Bd6 Rg8 Qf1+ Qf2 Bf4 Bd8 Bd6 Qa3 Qc4 Qb6 Qc6 Qd4 Qa6 Qh7 Ne2 Qf2 Nf7 Qg7 Bh2 Qe7 N4g3 Qfd4 Nd6 Qh7 Nde4 Qe3 Nef4 Q3a3 Kc2 d1N Kd2 Nb2 Ke1 Nc4 Kf1 Qe3
1B3BB1/1bP5/Nb1r1k1b/n2nRq2/nRK4P/4q3/1N1rN2Q/b1nbB1R1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 a5 b4 g5 c4 d5 h4 e5 f4 g3 c5 g2 b6 g4 c6 g3 c7 a4 f6 e4+ Kd2 d3 Kc3 d4+ Kc4 e3 b7 d2 b5 d3 f5 a3 b6 a2 Nf3 g1B Nc3 g2 Nd4 e2 Qa4 e1N Rh2 d1N Nde2 d2 Qc2 Qd7 Na4 Nd3 Nb2 Nc6 b8B Ra6 b7 Nge7 Rh1 Rh7 Rb1 Bb6 Rg1 a1B Kb5 Nc3+ Kc4 d1B Bd2 Nd4 Be1 Nb3 Qd2 Ra2 Qf4 Ned5 Qh2 Ke8 f7+ Ke7 f6+ Ke6 Bf2 Ndc1 Be1 Bh6 f8R Na4 f7 Kf6 Re8 Qf5 f8B Rd7 Re5 Rd8 Ba7 Rd6 b8N Bb7 Na6 Nac5 Bb8 Na4 Rh1 g1Q Bg2 Ne7 Bd5 Qe3 Bg8 Nd5 Rg1 Nac5 Nd3 Rd2 Nb2 Na4 Nd3 Nbc5 Rb4 N5b3 Nb2 Na5+
3q4/NqP3Bb/3B1RB1/k1b2KP1/bR4Nb/1r3qq1/n1Qn1N1R/1R1r1q2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 c4 Kb6 f4 e5 b4 a5 g3 h5+ Kf3 h3 f6 d3 f5 a4 f7 a3 f6 d2 g4 a2 g5 e4+ Kf4 e3 Na3 h2 Qe1 d1B Rb1 a1Q Bb2 e2 Be5 d4 Qc3 e1B Nc2 d3 Ne3 h4 Qc2 d2 Ng4 h3 Bd3 Bh4 Bg6 Bf5 Bd6 Qa3 Ke5 Be7 f8R Na6 f7 Rb8 Kf4 Nf6 c5+ Kb7 b6 Ne4 b5 Nb4 Ke5 Na2 Rb4 Nec3 Kf4 Nb1 Ke5 Be4 Ke6 Qg3 c6+ Ka8 b7+ Ka7 b6+ Ka6 c7 Ka5 Bf4 Bc5 Bd6 Bc6 Kf5 Ba4 Re8 Rh7 f8B Rd7 Bg7 Be2 Re6 d1Q Rf6 Nd2 Rb1 Bc4 Rb4 Bg8 Rb1 Bh7 Rb4 Ra8 b8N Qb1 b7 Qf1+ Nf2 Ra6 Nf3 Rb6 Ne5 Rb5 Rb1 Rb4 Ng4 Rb3 Rg1 h1Q Rg2 h2 Nc6+ Kb6 Na7 Ka5 Rg1 Qhg2 b8R h1Q Rb4 Qc6 Rg2 Qb7 Rh2 Qhf3+ Rf4 Nc4 Be5 Rd1 Bd6 Qfc6 Re4 Nd2 Rb4 Qcf3+
1B1Bn2k/1qr4b/1q1n4/N2nKr2/1b1PN1r1/P2Rr1R1/1bbBNRQ1/5B2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kg7 Ke4 c5 g4 e5 d4 h5 f4 b5 d6 b3 d7 c4 a3 b2 g5 c3 g6 b4 Bb5 c2 Qe1 b3 Bc6 h3 Ba4 h4 Qd1 h2 Qf3 h3 Qf1 Rh7 f6+ Kh8 f5 Qb6 d8N Rc7 f7 Nh6 f6 Na6 Bb5 Bf5+ Kd5 e4 Nd2 b1B Qf4 b2 Nc6 e3 Qg4 e2 Ne4 e1R Ne2 Bb4 f8B Nf7 Qg5 Nd6 Bd2 c1B f7 Bc2 Qg2 b1N Rf1 h1Q Ke5 h2 Be7 Rg8 f8B Nc3 Bd8 Bb2 Rf2 Nd5 Na5 Rgg7 Rd1 Rg8 Ng1 Re3 Bf1 Rgg7 Ne2 Rgf7 Qg4 Qf3 Bfe7 h1R Qg2 Rh4 Bf8 Rg4 g7+ Kh7 g8R Bg6 Rg7+ Kh8 Bfe7 Bh7 Bh4 Rf8 Bg3 Qf7 Bc3 Qd7 Rd3 Qc8 Be1 Qcb7 Bd2 Rf5+ Ke6 Nb8 Bh2 Nd7 Bf4 Rh4 Rg3 Rg4 Be5+ N7f6 Bf4 Rgg7 Be5 Nfe8 Bf4 Rf8 Ke5 Rg4 Bh4 Rc8 Ke6 Rf5 Bd8 Nb5+ Bd6 Q6a7 Bb8 Rc7 Rc3 Nbd6 Rd3 Rff4 Ke5 Qab6 Bc3 Rf8 Bd2 Rf5+
1b6/N4rqn/2rBkB2/P1R4q/2K1Nr2/P2N1RQN/n1bRq1B1/r1b3b1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 b5 Kd3 f5 e4 c5 h4 g5 a3 b4 e5 b3 h5 f3 d6 f2 h6 g3 d5 g4 h7 f4 Qe2 b2 Kc3 c4 Bd2 g2 Kd4 g3 Qe4 c3 Ra2 f3 Qe3 c2 Rh3 c1B Nc3 b1R Kc4 Nc6 Ne4 Qh4 Bb4 Ra6 Rd2 Ra1 Qb3 Nf6 e6+ Ke8 e7 Kf7 e8N Bf5 d7 Qh5 d8R Bd6 Nc7 Rf8 h8B Nh7 Nb5 Bb8 d6 Ke6 d7 Rf7 Bd6 Nb4 Rc8 Na2 Rc5 Rc6 Na7 Bg6 Bf6 Bf5 Ne2 g1Q Bg2 f1Q Qe3 f2 d8N+ Kd7 Nb7 Ke6 Qf3 Qe1 Qd3 f1R Qc3 Rf4 Qf3 Qh1 Ng1 Qe2+ Qd3 Qg5 Bf3 Bg4 Bd8 g2 Bf6 Rcc7 Rc6 Qf1 Rg3 Qhh4 Nh3 g1B Bg2 Qhh5 Re3 Bd1 Nc5+ Kf5 Rg3 Qg7 Re3 Rc8 Rg3 Qff3 Qe3 Qf2 Nd3 Ke6 Rc5 Bc2 Qe1 Rcc7 Rf3 Qe2 Qg3 Rc6
RB2Nn1K/2n1rr1n/4PRq1/1rn2PN1/3k1B1q/4RBQ1/bR1b4/3r1b1N w - - 0 1 illegal: No proof kernel
nr2q1BB/R5Q1/1N5P/rNk1br2/n2Rrr2/1BNnrb2/2nNP1R1/2K5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 h4 Kd6 c4 f5 b4 a5 b6 g5 b7 g4 h6 f3 b5 d3 b6 a4 h5 f2 h7 a3 h6 a2 Na3 f4 Rh3 g3 Rh1 g2 Rh4 f3 Qc2 Na6 b8R Nc7 b7 Nf6 Re4 Kc5 Nh3 g1R Bb2 d5 Qc1 d4 Qc3 Nd7 Ng5 Bd6 Bh3 f1R Nb5 f2 Be6 Rg3 Bg8 Ra5 Nf3 Be5 Rg4 Rh3 Rg2 Nb6 Rd1 a1N Ra8 Qf8 b8N Na4 Ra7 Na8 Kc1 Bb7 Nd2 Nc2 Ba1 Re3 Nd7+ Kc6 c5 Qe8 Bb3 Rf8 h8N Rf4 Nb6 Rfe4 Nbc4 Kd5 c6 Kc5 c7 Bd5 c8B Bb7 Nf3 d2+ Kb1 d3 Nf7 Bd5 N7g5 Bc6 Be6 Bb7 Rc1 d1R Bg8 d2 Qb2 Rde1 Nb6 d1N Nd2 Bc6 Nf7 Bb7 Nc3 Bd5 Nd6 Bc6 Qa2 Ndb2 Ndb5 Nd3 Bb2 Rf4 Rd1 Bf3 Qa1 Rg1 Rh2 f1R Rf2 Rgg4 Rg2 Ndb4 Kc1 Rfe4 Qa3 Rgf4 Ba1 Rf2 Qb2 Rh1 Ndb1 Rh5 Rd4 Rhf5 Nd2 Nd3+ Kb1 Bd6 Nd1 Rf8 Rb4 R4f5 Bbd5 Bh5 Bb3 R2f4 Qf6 Qf7 Bc3 Nf2 Kc1 Rb8 Qg5 Bc7 Bh8 Be5 Ndc3 Bf3 Rd4 Qe8 Qg7 Nd3+
q5Rb/1P1RPrb1/5r1k/1b1RB3/1r1b2r1/N1b1Nn2/1Nb1QnB1/3NBK2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 f5 e4 Kf7 b4 Kg6 h4 c5 h5+ Kh6 b6 g5 d6 a5 e5 c4 d7 g3 e6 c3 e7 f3 b7 c2 d5 a4 d6 f2+ Ke2 g2 b5 f4 b6 f3+ Ke3 g4 Na3 g3 Nh3 g1B Bg2 f1R+ Nf2 Bg7 Bd2 c1B Qe2 Bcb2 Rd1 Bbc3 Be1 Ra6 Rd5 Nc6 b8R Ne5 b7 Nf6 Rh4 Qf8 d8N Bf5 d7 Bc2 Nc6 Ne4 Nd4 Rf6 d8N Rf7 N8c6 Rh7 Nb1 a3 Nb4 a2 Na3 a1B Nd3 Rh8 Rc8 Rf6 Rc7 Qa8 Rg4 Rhf8 Nb2 R8f7 Rcd7 Rb6 Nac4 Rb4 Nb5 Bh8 Rg8 Bg7 Bh1 g2 Nba3 Nf6 Kf4 Nfg4+ Kg3 Bh8 Nfd1 f2 Kh3 Nf3 Nce3 Bcg7 Nd3 Bad4 N3b2 Rf6 Kg3 Bh2+ Kh3 g1R Bg2 Bg3 Nc3 Bge5 Ncd1 Kg5 h6 Kh5 h7 Kh6 Qd2 Bc3 Qe2 Bed4 Kg3 Rh1 Nb5 Rfg1 Na3 f1B Qf2 Bb5 Qe2 Nge5 Kf2 Rh3 Bh1 Rg4 Kf1 Nd3 Bg2 Rf7 Rf5 Nf2 Rfd5 Bge5 Nec4 Bhg7 h8B Rh5 Nce3 Rhf5 Rdd8 Bf8 Bf6 Bg7 R8d7 Rff4 Bh4 Bh8 Bg3 Beg7 Bh2 R4f5 Be5 R5f6
N2N2r1/RB1Q2B1/2q5/2R2qNn/1kr1brqp/bnb5/BPK2P1B/R4n2 w - - 0 1 illegal: No possible last move, all moves rejected
B1Q1n1R1/1q2q3/3kq1n1/B1N2r1r/1p1PP2b/4rnKB/R4BRN/4bb1N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 d4 c5 a4 b5 h4 g5 a5 f3 a6 c4 a7 g4 d6 f4 h6 c3 h5 c2 h7 b3 h6 b2 Ra6 g3+ Ke1 f2+ Ke2 f3+ Ke3 g2 Kf4 Qe7 Be3 c1B Nc3 b1Q Ra2 Bd2 Nh3 g1N Rh2 Be1 Rg2 Nf6 Na4 Ba6 Kg3 Ne8 Qc1 Nc6 Qc2 Ne5 Nc5+ Kc6 d7 Kd6 d8B Ng6 Ba5 b4 Qc1 Qb3 Qc4 Rc8 a8B Qb7 Qc1 Be7 Qc3 Qe6 Qc1 Rf8 h8R Rf5 h7 Rh5 Rg8 Rc7 h8N Bh4+ Kh2 Rf7 Qc4 Rff5 Nf7+ Ke7 Ne5 Kd6 Ng4 Qee7 Bd3 f1Q Nhf2 Qe2 Nh1 f2 Qc3 f1R Bf2 Nf3+ Kh3 Qc2 Nh2 Qb3 Bb5 Qbe6 Bd7 Bd2 Bc8 Re1 Kg4 Re3 Qc1 Bg5 Kg3 Bf1 Qc4 Be1 Bd7 Qc7 Qa6+ Qc6 Qc8 Qb7 Re2 Qa2 Kg4 Re5 Kg3 Bf6 Bg4 Qae6 Bh3 Ref5 Ra2 Bh4+
R1bN4/q3B2N/1B1np1bq/1P2bPq1/2R1r3/k2B1nr1/r3n1RR/N4KQ1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 f4 Kd6 d4 h5 b4 a5 g5 c5 g6 a4 g7 h3 b6 c4 b7 h2 b5 e3 Qb3 e6 Ra2 c3 Qc2 e2 Bd2 h4 Qh7 h3 Be3 a3 Qh4 c2 Qg4 c1N Qg5 Nh6 g8R Nc6 b8R Ne5 Nf3 Bg7 Rc2 a2 Na3 a1Q Qg1 Nf5 Rc4 Qg5 Nc2 Qa7 Na1 Rh7 Kf2 e1R Bd3 Bh8 Rg7 Ne2 Rg8 Rh4 Rg6 Rb1 Rg8 Rb4 Kf1 Rg4 Rg7 Rg3 Bf2 Qh6 Ng5 Nf3 Nh7 Qg5 Rg6 Be5 Rg8 Qae7 Rg7 Ra2 Ra8 Qa7 Rg6 Ke7 d6+ Kd7 d5 Rba4 Bb6 Rb4 Qe3 Rba4 Rg1 h1B Rg2 h2 Rh6 Rb4 Qg1 Rba4 Rc3 Re4 Rh3 Ke8 d7+ Ke7 d8B+ Kd7 Bc5 Nd6 Be7 Kc7 Be3+ Kb7 Rc5 Kb6 Rc4+ Ka5 Rh5 Bd7 Bd4 Be8 f5 Bg6 Rc2 Ka4 Rc4+ Ka3 Bb6 Nfd4 Rf2 Bf3 Rg2 h1Q Rh3 Bfh5 Rhh2 Nf3 Nf6 Be8 Nh7 Bd7 Rb4 Nf7 d6 Bg6 Rc4 Bc8 d7+ Nd6 d8N Qe3 Rf2 Qg5 Rhg2 Qhh6 Rh2 Rf4 Rfg2 Re4
K3Bk2/P4q2/1b5r/rRq1b1B1/R7/Pp2B1RR/qnn2rbN/2nQN1N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 Kf2 f5 Kf3 b5 e4 h5 d4 c5 g4 c4 g5 b4 g6 h3 e5 c3 e6 h2 e7 h4 d6 b3 a6 h3 g7 c2 a3 Qb6 d5 Nc6 Nd2 Rh6 Ne4 Bb7 Qd4 Nf6 g8N Bg7 Nf2 Nd7 Bd3 Qc5 Bb5 Nb4 Qd1 Be5 Be3 c1B Nd3 Nc2 Nf6+ Kf7 e8R Nb6 d7 Nc4 d8R Nb2 Ne1 Kg7 Bf2 Be3 Ng4 B3d4 Rb8 Bc6 Ke2 f3+ Kd2 f4 d6 Bd5 Be3 f2 d7 f1R d8B f3 Bdg5 f2 Rf8 Bg2 Rf4 Ra7 Be8 Kg8 Re4 Kf8 Rb5 Ra8 Ne2 Ra7 Rg1 h1N Nh2 Ng3 Rc1 Na1 Rc3 Nc2 Rh1 Ra8 Ng1 Ne2 Rd3 Nc1 a7 Rd8 Rc3 Rdd6 Rg4 Ra6 Rg3 Ra5 Rc4 Bc7 Ra4 Bde5 Bd7 Bb6 Be8 Ncd3 Ng4 h2 Ke2 Bh3 Kf3 Nc1 Ke4 Bg2+ Kf5 Rh4 Ke6 Rh6+ Kd7 Qe7+ Kc8 Qf7 Ngf3 Qh5 Rg1 h1Q Kb7 Q1h2 Ka8 Qf7 Rh1 Qc4 Bf7 Qc5 Bg6 Rg1 Be8 f1Q Qe2 Qf2 Qd1 Qh5 Rhh3 Rf1 Nh2 Qf7 Qd4 Qd2 Qd5 Rf2 Ng1 Nd4 Qf3 Qdc2 Qd5 Qb1 Qf3 Nc2 Qd5 Qa2 Qf3 Rc6 Qd1 Rh6+
k1b2Rn1/r1n3qq/8/1q1NN3/Q4b2/pPb1B1BB/RPNr1B1q/1K1qR3 w - - 0 1 legal: proof: f4 b5 h4 d5 c4 e5 cxd5 exf4 h5 b4 h6 b3 axb3 gxh6 Qc2 h5 Qd1 h4 g4 Kd7 d4 c5 Kd2 Kc7 Kc2 Kb7 e4 h5 d6 f5 d5 a5 e5 h3 g5 c4 g6 c3 e6 h2 d7 h4 g7 f3 d6 f4 e7 f2 e8R f3 Bb5 f1Q Ra3 f2 Qg4 h3 Bc4 a4 Ra2 Ra7 Nf3 Na6 Na3 Qe7 d8B Nc7 d7 Qd1+ Kb1 f1Q Nc2 a3 Ne5 Ka8 Be6 Qb5 Re1 h1Q Qa4 h2 Bh3 Qf7 Bf6 Bb4 d8B Qg1 Bde7 h1Q Bh4 Qgh2 Rf8 Rh6 Bg3 Rd6 Bg5 Rd2 Be3 Qe4 Bef2 Qh7 Bf5 Nf6 g8N Qfg7 Ne7 Ng8 Nd5 Ba5 Nd4 c2+ Ka1 Re2 Bd7 Bc3 Bh3 Qdd3 Bg5 c1B Nc2 Bf4 Kb1 Rd2 Be3 Kb7 B5h4 Ka8 Bgf2 Qe2 Bhg3 Qd1+
k1Kn4/n5B1/N1b1Q1r1/1qnNb3/b2Ppn1B/r2BBR2/1P2nRR1/1q3N2 w - - 0 1 illegal: No possible last move
1bkN2b1/rR1nR1B1/5N1K/2qR4/1p1PrBBr/n1B1Qq2/r2r1nP1/3N4 w - - 0 1 illegal: No possible last move, all moves rejected
3b2Kb/q5Q1/3R1q1r/1nBP1k1N/2Nq2R1/1B1b2nN/1N1PBp2/1br1R1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 b4 a5 g4 c5 b6 c4 b5 a4 e3 f3 b7 a3 b6 c3 Bh3 c2 Ra2 f2 Qf1 Ne7 Qg2 f1B Nc3 Na6 b8N Nc7 b7 Rh6 Nd1 Nb5 Nb2 Nf5 Nc6 Be7 b8R Ng3+ Kf4 Be2 e4 Bd3 Na5 Bf5 g5+ Kg6 Bg4 h3 Ke5 h2 Nac4 h4 Ra1 h3 Be2 a2 Rc8 Qa5 Rd8 Rc8 Rb1 Qa7 Rd6+ Be6 Ra1 f5 Rb1 f4 Ra1 Kg7 g6 f3 Rb1 Bd8 Ra1 Kg8 g7 Kh7 g8N Kg6 Nf6 Bf5 Nh5+ Kg5 Rb1 Bg6 Ke6 a1B e5 Rc6 Nd1 Bd4 Ba3 c1B Rb4 Bcb2 Ra4 Ba1 Bc5 Bb1 Ndb2 Bgd3+ Nf6 Kg6 Nh5 Rc7 Rd7 Kg5+ Kf7 Kf5 e6 Bh8 e7 f2 Nd1 Bae5 e8B Rcc6 Ndb2 Bb8 Nf3 Bbe5 Rg1 h1Q Kg8 h2 Re1 Qg1 Ng5 h1Q Rd6 Qh4 Rb4 Qd4 Nh3 Qh1 Qg1 Qhe4 Qg2 Qh4 Ra4 Qf6 Qg1 Ne4 Qg7 Bh2 Rb4 Bg1 Ra4 Na3 Rb4 Rc8 Ba4 Ng3 Bb3 Rc7 Rb7 Rc6 Re7 Nb5 Re4 Ra6 Rg4 Ra2 Nd1 Rc2 Ndb2 Rc1
2n1N2b/B3n1q1/6Q1/q1Pn1R2/N1kP4/Rpr1R1qN/B1b1K2n/1B2nBr1 w - - 0 1 illegal: No proof kernel
1qbk1r2/1q3r2/R7/np1n1B1K/NNbbN1Q1/RrPRBPb1/3b2B1/2B5 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 Kf3 g5 Kg4 b5 a4 d5 h4 b3 c3 e4 a5 b2 a6 e3 h6 e2 h5 e1B a7 d3 h7 d4 h6 d2 Ra3 d3 Rh3 Qd6 Nf3 Ne7 Nd4 Qe5 Kh5 g4 Bg2 g3 Qg4 d1B Nc6 d2 Nb4 Nd5 f3 Qe7 f6 Kd8 f7 Bb3 Rh2 d1Q Nd2 b1R Ne4 Bg7 f8N Bd2 Nd7 Bc4 Ndc5 Qb7 Na4 Rf8 h8R Rb3 h7 Bd4 Rh1 Qe2 Rd1 Nc6 Rg8 Rb8 a8B Na5 Rg6 Rf7 h8B Qe3 Rc6 Qf4 Ra6 Bf2 Bd4 Bfe1 Bh1 g2 Be3 g1B Bg2 Bh4 Nb2 Bg3 Na4 Qbc7 Bc6 Qb7 Bd7 Ra8 Bf5 Qfb8 Bf4 Bd4 Be3 Bde1 Rd3 Bd2 Re6 Ra6 Rh6 Raf6 Rg6 Rf8 Rh6 R6f7 Rg6 Bf4 Ra6 Bg3
q2R2b1/2Nr2bk/2BB3P/1N1Q2BB/P2qNn2/p2r1n2/2q1R1r1/3rrKR1 w - - 0 1 illegal: No possible last move, all moves rejected
2B1b3/2qrnq2/2qp3N/rR2RNB1/R3Prq1/Rq1n4/K1Q2bP1/B1N1k3 w - - 0 1 illegal: No possible last move, all moves rejected
N3kn1Q/2R3r1/nPP1nn1B/N1p5/2RB1Nr1/RK3bbB/R2q4/3n1qr1 w - - 0 1 illegal: No proof kernel
k5B1/n1Q2Nrp/1nP2R2/1b1B1NB1/5P2/1R2r1bn/n2q3B/1KqNnbR1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 b4 Kd7 c4 Kc7 Kc2 Kb7 g4 e5 f3 a5 c5 a4 g5 e4 g6 d3+ Kb2 e3 b6 d4 f6 h3 g7 h2 b5 a3+ Ka2 e2 f7 e1N Qd2 Nd7 Qg2 d2 Nh3 d1N Qg3 d3 Nc3 d2 Bc4 Ne7 g8B Nc6 Rb1 Na7 Rb3 Bd6 f8R Nf2 Rg1 h1B Kb1 d1N Bg5 Bg2 Rf6 Bf1 Bcd5+ Kb8 b7 Nb6 Qf4 Bd7 Qc1 Bg3 Qc2 Nb2 Nd1 Nbd3 Qc3 Nb4 Qc4 Kc7 b8N Na2 Nc6 Kb7 Ne7+ Bc6 Qc3 Rb8 Qc4 Ka8 Nf5 Rb7 Qf4 Rg7 Qc7 Bb7 c6 Ba6 Bf4 Qd6 Ng5 Nh3 Nf7 Qb4 Bg5 Qd2 N7h6 Nd7 b6 Bab5 Bgf7 Re8 Bg8 Re3 Nf7 Nc5 Qe7 Na4 b7+ Kb8 Qd7 Nb6 Qd8+ Nac8 Qd7 Ka7 b8B+ Ka8 Be5 Na7 Qc7 Bh4 Be6 Nb4 Bh2 a2+ Ka1 Bg3 f4 Qd3 Kb2 Qe2+ Kc1 a1Q+ Rb1 Qg2 Bd5 Qa3+ Rb2 Na2+ Kb1 Qd2 Rb3 Qac1#
1RQ2rnB/qr1nP2B/N1Nkn2R/bpr1R1NR/1P1r4/3q1B2/r4b2/1K6 w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 b6 a6 Bb7 axb7 Qd7 Kf2 Qe7 Ke1 Qd8 g3 b5 e4 Qd7 d4 Ke7 Kd2 h5 Kc2 Rh7 e5 a5 e6 f5 b3 c5 Bd3 f3 Qd2 h3 Qe1 c4 Bf4 h2 Qd1 h4 Be5 f2 Be4 f1R Qc1 a4 Bh8 f4 Nf3 c3 Nbd2 a3 Ng5 f3 b4 a2 Rb1 a1B Nb3 f2 Nc5 h3 Rb2 Ra3 Kb1 Ra2 Na6 Bg7 Rd2 Be5 Rb2 Bc7 d6+ Kd8 d5 Ba5 Rc2 Qc7 d7 Ke7 d8R Rd1 Rb2 f1R Rd2 Rf8 Rd6 Bb2 Re1 h1N Rh2 Nf2 Rb6 Nd3 d6+ Kd8 d7 Ke7 d8N Nf4 Rhh1 h2 Bf3 Qc5 Rc6 Qa7 Re5 Rd5 Qc2 Bc1 Qf5 Be3 Rd6 Rd4 Nc6+ Ke8 Qh3 Rc7 e7 Bg1 Rde6 Kd7 Kc1 c2 Rh6+ Ne6 Qf5 Kd6 Qg4 Ra1+ Kb2 c1R Qh3 Rc3 Qf5 Ra4 Kb1 Rc5 Qh3 Ra2 Qg4 Nd7 b8R Ndf6 Qh3 Ng7 Qc8 Be3 g4 Rb7 Nh3 Ne6 g5 Nd7 g6 Ngf6 g7 Bg1 g8B Be3 Bf7 Ng8 Bg6 Bg1 Bh7 Be3 Rd1 h1Q Ng5 Qf1 Re1 Qc4 Reh1 Bf2 R1h5 Qd3+
1KN2b2/1RbBp1kP/6r1/nq1qP1RQ/nq5q/2qr4/1RR1NNn1/1BB5 w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 cxd4 f3 hxg4 Kd2 g5 Ra6 g3 Nc3 g2 Ra5 g4 Ra1 g3 Nb1 Bb7 Ke1 Bd5 Ra6 Be6 Ra1 Bg4 fxg4 Rh5 Nf3 Rh3 Ng1 Rh8 Kd2 f5 Kd3 Kf7 Kc4 d5+ Kc5 a5 h4 a4 e4 a3 c4 a2 b4 f4 g5 f3 h5 d3 h6 d4 e5 d2 h7 d3 g6+ Kg7 b6 f2 b5 Ra4 b7 Ra6 b6 Nf6 Ne2 g1B Rh5 g2 Nbc3 Ng4 Rg5 Nc6 b8R Ne3 b7 Na5 Ne4 Qd4+ Kb5 Rg8 c5 Rd6 c6 Qb4+ Ka6 Rd5 Rb1 a1Q Ka7 Qac3 c7 Rd4 c8N Rd5 Qe1 d1Q Rb2 d2 Rc2 Rd3 Ka8 Bh2 Ka7 g1Q Bh3 f1Q Nf2 Qg3 Bd7 Qgh4 Ka8 Ng2 Ka7 Qh1 Qg1 Bg3 Qh2 Qdf1 Qh3 d1N Qf5 Kh6 g7 Nb2 Ka8 Na4 Ka7 Rh8 g8B Bh2 Qg4 Bg1 Ba2 Rg8 Bb1 Rg6 Qh5+ Kg7 Ra8 Qhe4 b8R Qhh4 Rb7 Qec4 Kb8 Qd5 Ng4 Bc5 Nf2 Bb6 Ra6 Bd8 Rab6 Bc7+ Ka8 Qbc4 Rbb2 Qcb5 Ka7 Qfe1 Ka8 Qcb4 Ka7 Qec3 Ka8 Bb6 Kb8 Bc7+
1n1Bb1K1/P2k4/4bBr1/QNRr2B1/1NBPnr2/R1rqN2p/4r3/b1R1q3 w - - 0 1 illegal: No possible last move
q3Q3/PRB4n/r3n1N1/q4NN1/1b1pK1Bb/Pb6/4q2B/RRbkr1Bb w - - 0 1 illegal: No possible last move
R1N2Bn1/4R3/1N2B1Rr/rn4q1/b4q2/1PbNbQP1/Rrp1K2k/2b1B2n w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 d4 Kf6 b3 Kf5 g3 e5 b6 c5 b7 h5 d6 a5 d5 e3 d7 e4 d6 h3 Ra3 a4 Qc2 Kg4 f5 c4 f6 h2 f7 e2 Bh6 h4 Kd2 e1B+ Ke2 h3 Qd2 e3 Bf4 c3 Qc1 c2 Bg2 Bc3 Qf1 Bh6 f8B Nc6 b8N Qg5 d8R Na7 d7 Nb5 Ra2 a3 Nc6 Ra5 Nf3 Bd2 Qd1 Bc1 Re1 h1R Na7 h2 Nbd2 Rf1 Be5 h1N Bc3 Bb7 Nc4 Bc6 Nc8 Qf4 Kd3 e2 N4b6 Bg5 Re8 Rh6 d8R Rg1 Rf1 e1Q Re7 Qee5 Be1 Qef5+ Ke2 Qd5 Rb2 a2 Rd6 a1B Rg6 Bd7 Ra2 Bc3 Qd3 Nf2 Bh1 Kh3 Ne5 Kh2 Qf3 Be3 Bg2 Nh1 Nd3 Bc6 Bh3 Qdf5 Bf2 Qf6 Rfa1 Rb1 Bd7 Rb2 Be6 Bc1 Be3 Ra7 Bd2 Qe3+ Kf1 Nd4 Ra5 Bf4 Bd7 Qg5 R1a2 Ba4 Be6 Nb5 Be1 Qd4 Ra6 Bfe3 Ke2 Qdf4 Ra5 Rb7 Ra8 Ra7 Re8 Ra6 Re7 Ra5
N4q2/1rq1nN1R/7b/1R5b/2r1RN1P/Q1qKbnBr/4Rp1P/Bb1B3k w - - 0 1 illegal: No possible last move
Kn5q/2n1q3/1b6/NnBN1qb1/r1P2R2/1B4P1/BpRrNqk1/3NQR1b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 b5 Ke4 e5 Kd5 h5 f4 h4 a4 e4 c4 b3 a5 e3 g6+ Kf6 g3 h3 g7 e2 a6 e1B a7 b4 Ra3 b2 Rb3 h2 Nc3 b1Q Bd3 Bd2 Rb2 b3 Qf1 Bc5 Nge2 Qe7 Bc2 d3 Nd1 Bb6 Qe1 d6 Rf1 h1Q+ Rf3 Qg1 Rf1 Qf2 Ra2 Rh4 Ba3 Rh2 Bc5 Be3 Rb2 d2 Ra2 Qa1 Bb1 Qc3 Rc2 b2 Ba2 Qd3+ Nd4 Qc3 Nc6 Bb7 Bb3 Nh6 g8B Nf7 Bh7 Nd8 Ba2 Ne6 Bb3 Kg7 f6+ Kh6 f5 Kh5 f7 Kg4 f8R Kf3 f6 Kg2 f7 Qh8 Bd3 Bg5 Bg6 Ba6 Na5 Bb5 Nc3 d1Q+ Bd3 Qg4 Nd1 Ng7 Bf5 Ne8 Ba2 Ba6 Bd7 Qgh3 Ba4 Bc8 B4b3 Qhd7 Rg8 Qb5 f8N Bb7+ Nc6 Qa5 Ne6 Qb5 Rf8 Nc7+ Ke4 Qa5 Rf6 d5+ Ke5 Qh5 Rf4 d4 Ke4 d3 Ke5 Qf8 Ned4 d2 Ne2 Qa3 Na5 Qf5+ Kd6 Qh8 Rf3 Kh3 Rf4 Bh1 Bb4 Kg2 Bc5 Nba6 Kc6 Nb8+ Kb7 Qb4 Ndc3 d1N Na4 Nb5 Nac3 Ne3 Nd1 Nd5 Be3 Ndc7 Bd4 Nba6 Bc5 Rg8 a8N Nb8 Bd4 Qe7 Bc5 Ba7 Nb6 Re8 Nd5 Bb6 Qd2 Rd8 Qc3 Rh6 Qe1 Re6 Nb4 Rd2 Nd5 Re3 Ba4 Ra3 B4b3 Ne8+ Ka8 Ra4 Ba3 Qf3 Bd6 Qf2 Bc5 Nec7+
K1k2q1N/r7/R1n4r/1N1Q1N2/PrB3bN/Bq3p1R/1b1PR2n/B3q1rb w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Ke4 f5+ Ke5 g5 a4 c5 e4 f3 h4 c4 d6 c3 Kd5 b3 h6 f4 h7 b2 e5 g4 h5 g3 h6 f2 Qb3 b4 Bc4 f1B Rh3 c2 Na3 b1Q Nf3 g2 Nb5 g1R Nh4 f3 Ba3 c1Q Qa2 Qe8 e6+ Kd8 d7 Ra7 Qb3 Bg7 Kc5 Qbc2 Kb6 Bb2 Qd3 b3 Qd5 Qe1 Rb1 Qee4 Re1 Nf6 Re3 Bg2 Re2 Rg8 h8B Bh1 h7 Qf8 Bg7 Ng4 h8N Nh2 Bc3 R8g6 Be5 Bc1 Beb2 Rh6 Ba1 Na6 Kc6 b2 Kb6 b1R Kc6 Nb4+ Kb6 Ke7 d8R Qb2 Rd6 Qb3 Rc6 Ke8 e7 Bb2 Rd6 Bg4 Rf6 Ra6+ Kb7 Ra7+ Kb8 Qee3 Ra6 Qe6 Rf2 Qe1 Re2 Rc7 Ka8 Nc6 Qh5+ Kd7+ e8N Kc8 Qd5 Rd7 Ng7 Rb7 Nc3 Rb4 Ngf5 Rc1 Nb5 Rc3 Nc7 Re3 Nb5 Re7 Re6 Rf7 Re2 Ra7+
3RNNbn/NrR2qq1/K1bN3R/1r3P2/r3nb1B/B5P1/p3r3/2QBkn2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 f4 Kg6 d4 Kf5 b4 Kg4 d6 Kg3 f5 c5 d5 a5 d7 e5 b6 h5 b7 e3 Kd3 Kf2 Kc4 h3 Kb5 c4 d6 e2 Rh2 e1R Ra4 h4 Qb3 e4 Ra1 e3 Na3 e2 Nc2 a4 Bh6 c3 Qa2 a3 Ne3 c2 Bf4 c1R Qd2 a2 Nf3 Qe7 d8B Rh7 d7 Nh6 Nc4 Rb1 Bd6 Ra4 Nd4 Nf7 Ne6 Na6 b8N Nh8 Nc7 Bh6 Nc6 Bf4 Na7 Nc5 Ne8 Qe5 Rh1 h2 Bg5 h3 d8R Rb3 Rc1 Be6 g3 Bg8 Qc3 Ne4+ Kb6 Nd2 b5 Re7 Qb2 Qg7 Ba3 Rf7 Bg2 Nf1 Bf3 Re7 Ncd6 Qf7 Rg1 h1N Qd2 Re5 Rc7 h2 Bh5 Reb1 Qc1 Qg7 Bg4 e1Q Bd1 Qb4 Kb7 Qc4 b6 Ke1 Bf6 Nf2 Rh1 Qcf7 Bg5 Rab4 Ka6 Re2 b7 Ne4 b8N Rc4 Be7 Rb7 Nd7 R1b5 Nf8 Nd2 Rg1 h1B Bf6 Bc6 Rh1 Rcb4 Rh6 Ne4 Bh4 Ra4+
1q1Br1N1/R2Rrqn1/3qN3/2PBn3/1K2pbN1/1QR3Bk/2P3b1/2n1N1nr w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 dxc5 gxh4 Kd2 Kf7 Kc3 Kf6 g4 e5 f4 d5 b4 h5 b6 a5 f5 d4+ Kc4 d3 b5 h3 b7 h2 b6 h4 Qe2 a4 Bd2 e3 Qf2 Kg5 f6 e4 f7 a3 Bh3 a2 Bg2 h3 Bf1 Bd6 f8N Nh6 Qf7 Kh4 g5 e2 g6 e1N g7 Nd7 b8R Rh7 g8N Nf5 b7 Nf3 Kb4 Ng7 Nc3 Nde5 Be3 d2 Nd5 d1Q Ndf6 Qc7 Qe6 Qf7 Qb3 Qdd5 Rd1 a1N Ne6 Bd7 Rf8 Re8 b8B Qa8 Bc7 Qb8+ Bb6 Bc7 Bc4 Bb5 Bd5 Bf1 Rd3 Bg2 Ng4 Bd6 Bf4 Bc7 Qb1 Nb3 Rc3 Nc1 Qb3 Bd6 Ne2 Bc7 Rd1 h1Q N2d4 h2 Bg3+ Kh3 Rd2 Ng1 Nf3 Nge2 Rdd3 Qd1 Ne1 h1R Rd2 Ng1 Rd4 Qf6 Rf7 Bd6 Ra7 Qf7 Bc6 Bc7 Rd7 Qd6 Ba8 Bd8 Bd5 Bg5 Ka3 Bf4 Bd8 Re7 Ka4 Rh8 Ka3 Qc8 Kb4 Qa8 N8f6 Rhe8 Ng8 Qab8+
1Q2q1q1/1B1Br2N/bKnBRq2/R1P2nR1/1Bp5/2r3Pr/1kN1nN1r/4b3 w - - 0 1 illegal: No proof kernel
5k2/K1b4n/1NB1Bbn1/2p2P2/1Rr2NN1/Q1q1R1q1/1rPBn2r/1bNb2R1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 c5 Kc3 a5 Kc4 h5 g4 a4 b4 h3 f4 h4 g5 a3 f5 h2 b6 d5+ Kb5 d4 g6 d3 e6 h3 g7 a2 e7 d2 b7 e3 Nc3 e2 Rb1 a1B Rb3 e1Q Bc4 Qg3 Nge2 Nd7 b8N Ra4 Nf4 Ngf6 g8N Nh7 Be6 Ne5 Nce2 Qd4 Kb6 Ng6 b5 Qdc3 Nh6 Rc4 Rg1 h1N Nd7 h2 Ka7 Bg7 b6 Be5 b7 Bc7 Qe1 d1B b8R Rf8 R8b6 Bb7 Qf1 Bd5 Ng4 Bb2 R6b4 Rf6 Bg8 Rb6 Bd2 Rb5 Nc1 Be6 Ra4 Ba1 Rba3 Rb2 Qh3 Qb4 Qh5 Rd4 Nh3 Qe5 Rgg3 Rb3 Rg1 Ng3 Qh6 h1R Nb6 Ne2 Qg5 Qg3 Qe3 Rh2 Nf4 Bc3 Qf3 Rb2 Qd3 Bd5 Be6 Ba2 Qa6 Qb3 Rb4 Bb1 Qa5 Qc4 Rab3 Re4 Qa3 Bf6 Re3 Qb3 Bc8 Kf7 e8B+ Kf8 Bc6 Rc4 Be6 Qc3
1b1q4/4qN2/nrr1R1QP/Bk1bq1Bn/4BPK1/R1b1RNpN/b5r1/5N2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 h4 e5 f4 g5 c4 d5 b4 Kd7 f6 a4 c5 e4 h5 d3+ Ke3 g3 h6 d2 b6 Kc6 f7 a3 b7 g2 Qc2 d1Q Nh3 g1R Bg2 g4 Nd2 a2 Nf1 g3 Bd2 Bd6 f8B Ra6 Be7 Rb6 Bg5 Na6 b8N+ Kb5 c6 Qh5 c7 Nf6 Nd7 Bb7 c8N Bb8 Ne5 Rf8 Nf3 d4+ Ke2 e3 Qg6 Bd5 Re1 a1B Nd6+ Kc6 Rh2 Bc3 Nf7 Kb5 Ra1 Re8 Ra3 Ree6 Bh1 Rec6 Rg2 Kc4 b5 Qh4 Rh2 Nh5 Rf2 Rg2 Be1 Rb7 b6 Kb5 Bd2 Bb2 Ba5 Bc3 N3d2 Ba2 Kf3 d3 Re2 Qe7 Nc4 d2 Nce5 Qd8 Re1 d1B+ Re2 Rd7 b7 Bdb3 Re1 Rdd6 Re2 Bc7 b8R+ Rb6 Rb7 Bb8 Re7 Rdc6 Re6 Qe7 Rd2 e2 Rd3 e1Q Re3 Qd2 Nf2 Qh2 Nh3 Qdd8 Kg4 Bd5 Nf3 Qg1 N1d2 Qe1 Nf1 Rc2 N3e5 Re2 Be4 Rg2 Nf3 Qd2 Bb4 Qd4 Ba5 Qe5
Qb1n4/1q2Nr2/1B3R1P/N3P1Kp/qr2B3/k6N/BRbnR1nb/1br2B2 w - - 0 1 illegal: No proof kernel
kbr2N1b/b1n2Q2/BRq3Np/q2q4/3RnB2/1b2P3/1P1r1N1B/BRK2n2 w - - 0 1 illegal: Other
N2Rqr2/2Nb2r1/qnP1nn2/b6R/n1b2Br1/4BN1B/2kpB2P/1R2K1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
N4R2/1B1N1bPQ/nB1Bn3/rRpN4/R1b1q2b/5k2/q2P2nK/2R2rnr w - - 0 1 illegal: No possible last move
1q1Q1nq1/3BB1p1/1P1N2B1/1Pk3qN/K2rb1R1/1nq1Rb2/NR1b2nR/4r3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 a5 e4 f5 h4 f3 b6 f2 h5 f4 h6 f3 h7 a4+ Ka3 c4 b4 g3 b5 c3 Nh3 c2 Bg5 c1N Rg1 g2 Bd3 f1Q Nc3 f2 Ra2 Bb7 Nf4 Nh6 Rb2 Nb3 Nh5 Nd7 Na2 Qb8 Bd8 Rg8 h8R Nf5 Kb4 a3 Bg5 Ba6 Ka4 Nh4 Bc2 Be7 Qd3 Nf8 e5+ Kd7 e6+ Kd6 Rh6 Qd1 Qd2 f1B Bg6 Be2 Rh7 Bd8 e7 Bf3 e8B Rh8 Re1 g1Q Re3 Ng2 Bd7 Be4 Bh4 Bg5 Qd3 Qg4 Qd1 Qe6 Qd2 Ke7 d6+ Kd8 Bc8 Bb1 d5 Qb7 d7 Ke7 d8R Nd4 Rh3 Qg8 Nb4 Qe3 Ng3 a2 Rb3 a1Q+ Na2 Qac3 Rb2 Nb3 d6+ Kf6 d7 Ke6 Rh5 Ra7 Rh6 Qb8 Qd3 Rb7 Rh2 Qec5 Re8+ Qe7 Rh5 Bd2 Rg5 Rh5 Qd4 Bf5 Qf6+ Kd5 Qd6+ Kc4 d8N Qef6 Qd7 Kc5 Nf7 Qfe5 Qd8 Re7 Bd7 Bb7 Nd6 Bf3 Nb4 Qed5 Na2 Re1 Re3 Rh6 Bh7 Re6 Rg4 Bc2 Be7 Qg5 Bg6 Re4+ Ka3 Rd4 Nh5 Rd5 Ka4 Bce4 Rgh4 Rd3 Rg4 Rd4+
1QbB1nR1/2NrrP2/2BR2b1/B3n1R1/1p3q1B/2P2n1n/1K1b2Nk/1N1qq3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 f4 Kf6 a4 e5 h4 b5 a5 g5 a6 d5 h6 b3 h5 g4 h7 g3 h6 d3 Kc3 b2 a7 d4+ Kb3 d2 c3 d3 Qe1 d1N Nh3 g2 Qf2 g1N Qb6+ Qd6 Ra5 d2 Bg2 Nf2 Bc6 Nd7 Qb8 Nf3 Rd1 Ne7 Ka2 Rg8 h8B+ Rg7 h7 e4 Kb3 e3 Kc2 Kf7 f6 Ke6 f7 e2 f5+ Ke5 f6 e1Q Nf4 Ng6 Ng2 Nh3 Kb3 Be7 f8B Kf5 Ka2 Qf4 Kb3 Bd8 Bb4 Re7 f7 Kg4 Bf6 Kg3 h8R Ngf8 Bh4+ Kh2 Rg8 Bc7 Ra1 Nde5 Ba5 Bb6 Ra4 Be3 Rd4 b4 Rd6 Qf2 Rg1 d1Q+ Ka2 Qfe1 Rg5 Qfd4 Rg8 Bh6 Bcg5 Qf4 Bf6 Rd7 Bfd8 Bg5 Qb6 Rb8 a8N Rbb7 Nc7 Ra7 Qb8 Bh6 Na3 b1B+ Kb2 Bg6 Nb1 Re7 Ne3 Rb7 Rg5 Ra7 Ng2 Rb7 Na6 Rbd7 Nc7 Qfd4 Rh5 Bd2 Rg5 Qf4
1kq4n/1B1PNbr1/Rr1nr1BB/b2R4/4N2P/1N2N1Kp/qbn1Q3/2r3R1 w - - 0 1 illegal: No proof kernel
nQ1N4/q1Bp2P1/1bN2nR1/P4BKR/1q3N1N/b1rb2b1/krq2B2/2Rr4 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Ke2 Kf7 Ke3 Ke6 Kf4 b5 a4 h5 c4 h4 g4 h3 a5 h2 c6 b3 c7 b4 g6 b2 g5 b3 g7 e3 g6 e2 c5 e1B c6 Bb4 Nc3 b1Q Bd3 b2 Nd5 Rh3 Nf3 Ba6 c8N Ba3 c7 Nf6 g8R Qc2 Nd6 b1Q c8N Qdc7 Be3 Qb4+ Kg5 Qa7 Qb1 Bg7 Rc1 h1R Nb7 Rd1 Nh4 Bb5 f4 Na6 Ra2 Nc7 Bf2 Rb8 f5+ Ke5 Be4 Rc3 Nd8 Bd3 Nf4 Na8 Rh8 Bf8 g7 e6 Rh6 Bc5 Ne7 Bb6 Nec6+ Kd6 Rh5 e5 Bd5 e4 Be6 e3 Ra1 Nd5 f6 Kc5 f7 Kc4 f8B e2 Bd6 e1B Bf5 Nf6 Bc7 Rb7 Bg1 Bg3 Bf2 Rb8 Qb3+ Kb5 Qg8 Ka4 Qh8 Kb3 Ra2 Qb1 Re2 Qc2 Re6 Ka2 Rd6 Ng8 Rg6 Nf6 Nde6 Re8 Ned8 Re2 Qf8 Qcb1 Qe8 Rb2 Qe5 Qc2 Qb5 Be3 Qb8 Bb6
1r4Bk/q1P4r/3bR2p/N1N2RB1/Rn3n2/3q1bnQ/1b1N1K1P/1NbB2q1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 fxg4 f4 Kf7 d4 g5 c4 Kg7 d5 a5 b6 e5 b7 e3 d6 a4 f5 e4 d7 g3 c6 g4 c7 e2 c5 a3 c6 a2 Bd2 h6 Bg2 Ne7 Bf1 g2 Be3 g3 Bg5 Rh7 f6+ Kh8 f7 Na6 b8N Nb4 Nf3 g1Q Qd3 g2 Nfd2 Qa7 Na6 g1Q Nc5 Bb7 c8B Nf5 c7 Bd6 Qh3 Bd5 Ba6 Rb8 Bc4 Ng3 f8R+ Bg8 Rf5 Bd5 Na3 Bc6 Bg8 Bb7 Rc1 a1B Nab1 Bb2 Rc4 Qf8 Rf3 Qf5 d8N Qd5 Rf6 Qd3 Nc6 Na6 Ra4 Nb4 Nc4 Qg2 Rg1 Qh1 Kf2 e1N Ne7 Ng2 Rf5 Nf4 Be2 Bd5 Bd1 e3+ Ke1 e2 Nc6 Bf3 Kf2 Qd5 N6a5 e1B+ Ke3 Bd2+ Kf2 Qe4 Re1 Qd3 Re6 Bdc1 Ncd2 Qg1+
1q2n1k1/1Np4q/2nbr2B/R1b1Q1n1/N5Nn/2PBR1rB/1Rb1qKP1/5B2 w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 g5 d4 gxf4 dxe5 Qh4+ Kd2 Qh3 Ke1 Qxh2 e4 f5 b4 Kf7 b6 h5 b5 a5 b7 d5 b6 f3 Ne2 h4 Bh6 f2+ Kd2 h3 Ke3 f4+ Kf3 d4 Nc1 d3 Ra4 d2 Ra2 a4 Bg5 a3 Bh6 Nc6 b8N Bd6 b7 Bf5 Nd7 Nf6 b8R Rg8 Nd3 Ne8 Ke2 Ra6 Nc3 Rg3 e6+ Kg8 e7 f3+ Ke3 Rb6 Qe2 d1Q e5 Be4 Rb2 a2 e6 a1B N7e5 Qg1 Qe1 h2 Nc5 Bd3 N3a4 Ra6 R2b3 Bd4+ Kf4 Bg6 Nb7 B4c5 Re3 Bf5 c3 Bc2 Bd3 f1N Ke4 f2 Ng4 Rb6 Ra8 Qb1 Ra5 Ra6 Nd8 Qb8 Nb7 Ne5 Qe2 Nd2+ Kf4 Qa1 Rb1 h1Q Rb2 f1N Qe1 Qd1 Qe2 Nf6 e8B Ndf3 e7 N1h2 Beb5 Nh4 e8B N2f3 Bed7 Ne8 Qe1 Qh3 Bf1 Qh1 Bbd3 Nc6+ Ke4 Rh3 Qg3 Rb6 Qe5 Rg3 Nf2 Ra6 Bh3 Ng5+ Kf4 Qh5 Ng4 Qg6 Bfe2 Qd1 Bf1 Qh7 Rf3 Bb4 Ke3 Ba3 Kf2 Bac5+ Re3 Ne7 Qf5 Bf4 Nh2 Re6 Qf6 Bfd6 Qe5 Nc6 Ng4 Qe2+
R4n2/P2Kn1b1/kBB3NN/1b4RR/q3P3/p1r1NN2/bq2Q1n1/1B2qrb1 w - - 0 1 illegal: No proof kernel
b1B1r3/p2NR1Nn/4R3/P2qn1Q1/nRBq1Bb1/q1k1NPBb/2q1K3/7r w - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Bg5 hxg5 Qb6 Bb2 Qc7 Bc1 Qd8 c4 Kd7 d4 Kc6 a4 h5 g6 b5 g7 e5 a5 b4 Qd2 g2 Be2 g3 Ra4 e3 Qa2 e4 Qb2 b3 Qa1 b2 Kd1 h4 Nd2 b1B Nh3 g1Q+ Nf1 g2 Nf4 h3 Rb4 h2 Ne6 Nf6 g8R Na6 Rg7 Nh7 Re7 Qd5 Ng7 Bg4 f3 Rae8 Qa2 Qf2 Qd2 g1Q Bd3 Qfg2 Ke1 e2 Qg5 Ba2 Bf4 Q1f2+ Kd2 e1N+ Be2 Qh4 Ne3 Nd3 Re1 h1B Kd1 Ne5 Bf1 Qg1 Ke2 Bg2 Bg3 Qhh2 Re6+ Kc7 c6 Nc5 Bf4 Na4 c5 Qd8 d5 B2h3+ Kd1 Qb2 Bc4 Qa3 Ke2 Bb1 Nf1 e3 d6+ Kc8 c7 Kd7 c8B+ Kc6 Re7 Be4 d7 Qc7 d8B Qd7 Bd3 Kd5 Bc4+ Kd4 c6 Kc3 c7 Ba8 Re6 Qd5 Be7 Bh5 Bd6 Qg4 Bg3 Qgd4 Bf4 B5g4 Bg3 Ng6 Bdf4 Ne5 B8a6 Nf6 c8N Rh6 Nb6 Nh7 Nd7 Rh4 Reb1 Rh5 Bc8 Rh6 Ke1 e2 Ne3 Rh5 Re7 Rh4 Rb6 Rh6 R1b4 Rh4 Kf2 Rh6 Rbe6 Rh5 Kg1 e1Q+ Bf1 Qec1 Kf2 Qc2+ Be2 Bf1 Ke1 Rh1 Bc4 Qcc1+ Kf2 Bfh3 Ke2 Qc2+
2nN2rQ/P2B2r1/Bn1kP1b1/K1R1R3/1r1N2r1/rRBp4/3rR2N/bq2n3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 e4 b5 h4 d5 a4 f5 c4 g5 h6 g4 h5 f4 a5 f3 e6 d3 a6 b3 Kc3 d4+ Kb4 b2 h7 d2 h6 f2 c5 d3 c6 g3 e5 g2 c7 Nd7 Ra5 Bg7 Na3 b1R+ Bb2 Nb6 Qh5 d1R Nc2 Na4 Rh2 Rd2 Nf3 g1R Bh3 f1N Ncd4 Rg4 Re2 Ne3 Nh2 Rbg1 Bc3 Ng2 Qh4+ Bf6 Qh5 Bd7 c8B Ne1 Bb7 Be8 a7 Rb8 Ba6 Qb6 Qh4 Rg7 Bg4 Bg6 Bf5 Rg4 Qh3 Kd8 e7+ Kc7 e8R Ne7 Bd7 Rhg8 h8N Nc8 h7 Rb7 e6 Kd6 Rf8 Be5 Rf5 Bf6 Rc5 Rb8 Kb3 b4 Kc4 b3 Nf7+ Ke7 h8R b2 Qh7 b1R Nd8 Ra1 Rab5 Qb7 Kb4 Ra3 Ka5 Kd6 Rb3 Qh1 Qh4 Rb4 Rhh5 Be5 Nc2 Bd4 Rhe5 Qf1 Qh8 Qh1 Bb2 Bc3 Nd4 Qb7 Bc1 Ba1 Bb2 Qc6 Rb5 Qc2 Bc3 Qb1 Rbc5 Nab6+
r2B2NK/B3NQ2/Rn2rR1r/1k5p/4r1r1/B2Rq2B/Pq1bPNn1/r2b4 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Kg4 h5+ Kf5 b5 d4 c4 g4 b3 d6 Kc6+ d7 b2 g6 c3 g5 f3 g7 b4 g6 b3 d5+ Kb5 d6 f2 Bg2 f1R+ Bf3 c2 Bh6 c1R Bg5 Nh6+ Ke5 f5 g8N f4 g7 Qe7+ Kd4 Ng4 d8B Nd7 Rh3 Rc6 Bg2 f3 Be3 Nb6 d7 f2 Qe1 Qe8 Be7 Re6 d8B Bd7 Ba3 Rhh6 Rg3 Bd6 Nh3 Rg1 Qf1 Bb4 Rf3 Bd2 Rf6 Rg6 Nc3+ Ka5 Nd5 b1Q Nde7 b2 Qc1 f1R Nf2 Qc2 Bh3 b1R Qd1 Qc1 Qb3 Ba4 Qc4 Qc2 Qb3 Rb2 Rd1 Rb1 Qc4 Ra1 Qc7 Kb5 Qf4 Ba5 Rd3 Bd2 Qc7 Qc1 Qa7 Bd1 Qb7 Rc6 Ke4 Rg3 Kf5 Re6 Qa7 Qb2 Qc7 Nd7 Ba7 Re4 Ra6 Nb6 Qb7 Rfg1 Qd7+ Rc6 Qe6 Rge3 Qf7 Rcc4 Kg6 Rc6+ Kh7 Rg6 Qf4 Ree6 Qf8 R3e4 Kh8 Ne3 Qf4 R1g4 Qf7 Qc6 Nf6 Ng2 g8R Qc5 Rf8 R4e5 Nfg8 Ree4+ Qg7 Qcd4 Rf6 Qe3 Qf7 Rh6+
1rN1b1B1/n2Q1R2/1Nn1q3/P3N2N/4B2k/bnPqn2p/2n2R2/1R1rBK1n w - - 0 1 illegal: No possible last move
q3Rb2/k1rK4/1b2RbpN/P7/BR2Pb2/2rB1qbQ/1N1B4/n2bNnR1 w - - 0 1 illegal: No proof kernel
5r2/2RR2n1/2KpBrbr/n6P/BR2PkNb/N3qr2/1n3BQr/1N1n1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 h4 g5 b4 d3 c4 f5+ Kd4 a4 e4 d2 h6 a3 h5 f3 b6 f4 b5 a2 h7 f2 b7 g4 b6 g3 Qg4 d1N Be3 f3 Ne2 g2 Ng3 Na6 b8N g1R b7 Qg5 Nc6 Nc5 b8R Nd3 Rb4 Nf6 Na5 N3b2 Qh3 Qh6 Qg2 Ne8 c5+ Ke6 c6 d6 c7 Be7 Rh2 Rh1 Bb5 f1R Nc4 f2 Nca3 Ng7 Ba4 Bh4 Rh3 Rf8 h8N Rh2 Ng6 Kf6 Kd5 Bf5 Ne5 Bg6 Bc5 Kg5 c8B Kf4 Ng4 Rh8 Bcd7 Raf8 Kc6 Qg5 Be6 Rh6 Nh1 Rf6 Rc3 Rf8 Ba7 Rf6 Ng3 Qc5+ Kd7 Qe3 Rc7 Rf8 Kc6 Rf6 Nc3 Rf8 Rc1 a1N Ncb1 Nb3 Rd7 Rf6 Kb5 Na5 Rcc7 Rg1 Bb6 f1R Bc5 Rf3 Nf1 Qe1 Bf2 Qe3 Nfd2 Re1 Nf1 Re2 Rb7 Rc2 Ra7 Rc8 Rac7 Qe1 Kb6 Rcf8 Kb5 Qd2 Kb6 Qe3+ Kb5 Nac4 Kc6 Na5+
2k4b/r2b2RP/2N3N1/P2Nq1Q1/2nbB1R1/npRK1B1n/1B3nr1/1n2B2b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Kd7 a4 b5 d4 c5 Kd2 g5 e4 f5 d6 c4 d5 g4 a5 g3 h6 f3 h7 c3+ Kd3 b3 h5 b4 e5 c2 h6 b2 Nd2 b1N Kc4 f4 Kd4 b3 Nc4 g2 Ne3 f2 Qd2 f3 Kd3 Qe7 Nh3 g1N Bb2 c1B Be2 f1B Nf4 f2 Rh4 Na3 Ng6 Ra7 Rg4 Bg2 Bf3 f1N e6+ Kd8 d7 Nh3 Bc3 Bb2 Rc1 Bg7 Rc2 Kc7 d8R Nf6 Rg8 Nc6 d6+ Kb7 d7 Ne4 Qc1 Nfd2 Nd5 Bd4 Rg7 Rg8 h8B Bh1 h7 Ndb1 Be1 Nec3 Qg5 Nd1 d8N+ Kb8 Rc1 Bd7 Rc3 Kc8 Be4 Qd6 e7 Qc5 e8B Ne5+ Ke2 Qc7 Nc6 Nec4 Kd3 Qe5 Bf7 Rf8 Be6 Rf2 B6f5 Rg2 Bf3 Bc1 B5e4 Bd2 Rc2 Bb4 Rc3 Bf8 Rf7 Bh6 Bf6 Bg7 Re7 Bh8 Rg7 Qf4 Be5 Qf5 Bf6 Qe5 Bf5 Qh2 B5e4 Be3 Rc1 Qd6 Ba1 Bd4 Rc3 Qe5 Bb2 Ndf2+
q2n1Bbr/N5PR/1R2NnQR/1K2k1BP/n6n/4br2/1Rp1N1n1/3Br1r1 w - - 0 1 illegal: No proof kernel
r4B1k/3p2r1/2r1Bq1P/N1P2BRb/1n3bq1/1Q1NRBR1/K2r3r/2r2n1N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 f5 b4 Kf7 h4 g5 e4 Kg7 c4 a5 Kc2 a4 Kb2 g3 e6 a3+ Ka2 d3 c5 f4 e5 g4 h5 f3 e7 g2 e8B g3 b6 d2 b7 f2 e6 Ra6 b5 Be7 b6 Ra4 Nf3 g1Q Rh3 g2 Ne5 Nf6 Bf7 Na6 b8R Nd5 b7 Bd6 e7 Ne3 e8B Qf6 Qb3 d1R Be2 f1R Nd3 Bf4 Be6 Rd2+ Bb2 Rfd1 Bg6 Rc1 Bgf5 Nf1 Bf3 Rd4 Nc3 Rd6 Rb1 Rc6 Ne4 Qgd4 Ng3 g1R Nh1 Nb4+ Ka1 Rh6 Rg3+ Kh8 Ra8 a2 b8N Qc4 Ra3 Bb7 Be5 Rh7 h6 Rg7 Rg5 Nc2+ Kb2 a1R Bc3 Rc8 Nc6 Rgg2 Na5 Rh2 Rg3 Rc6 Be5 Qg5 Bd6 Qa6 Bf8 Qg4 Ra4 Qb6 Re4 Qd8 Re2 Qf6+ Re5 Ra4 Ra1 Ba6 Ra3 Bb5 Ka2 Bc4 Bg8 Bf7 Re3 Bh5 Bge6 Rb4 Ra4 Rb8 Rd4 Rbc8 Rd5 Ra8 Bh7 Qd4 Rg5 Qf6 Bhf5 Nb4+
bq4R1/1p1N1b1k/5B2/PB5r/1R3P1r/2n1Q2r/BNNK2nb/RbBr1r2 w - - 0 1 illegal: Other
3rb1rk/5B1b/5rn1/1BRnB1pq/Rn4NP/b2R1bQ1/1K2PNn1/BN6 w - - 0 1 illegal: No possible last move
Bb4rq/n1N3pN/r2B2b1/bP2Q2K/1R2N3/2BR4/Rn1rRPb1/1n1n1k2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 c4 Kf6 h4 Ke5 b4 Ke4 c5 a5 h5 d5 c6 e5 h6 d3+ Ke1 a4 b6 g3 h7 a3 b5 d2+ Ke2 d4 c7 g2 f6 a2 f7 Bf5 c8N Bd6 f8B Ra6 b7 Ne7 Qa4 d1N Nf3 g1R Rh2 Nbc6 b8R Rg8 h8R Nd5 Bh3 Na7 Bg2 Rf1 Rb7 Bb8 Nb6 Rh1 Rd7 N5c3+ Kd2 Kf4 Bb2 e4 Ng5 d3 Nh7 Re1 Qd4 Re2+ Kc1 Qe8 Nd2 Nb1 Bd6+ Kg4 Qf6 e3 Ne4 Rd2 Na8 e2 Qe5 e1N Bc3 Qc8 Nc7 Qd8 Bf1 Kf3 Bg2+ Ke2 Rh4 Qc8 Bh1 Kf1 Rg4 Nb2 Re7 Nc2 Rd7 Ne3 Rf4 Rd8 Re8 Ned1 Ree7 Rg8 Bf3 Re2 Rh4 d2+ Kc2 Nc4 Kd3 Ncb2+ Kd4 Bh3 Kd5 Bg2 Ke6 Qe8 Kf5 Qh5+ Nhg5 Qh8 Kg4 Ne3+ Kg3 d1B Nh7 Rd2 Kf4 Ba4 Kg5 Bc2 Kh5 Bd3 Ba3 Bc2 Rd3 Ned1 Rg4 Bb3 Bd6 Be6 Nf6 Bc8 Ba8 Bf5 Ne4 Na3 Rc1 a1B Rc2 Nb1 Re6 Na4 Ra2 Bb2 Bd4 Bc3 Re8 Ba5 Bc3 Bb6 Ng5 Nab2 Rb4 Ba5 Ne4 Bfh3 Rf8 Bd7 Rff3 Bc8 Rfe3 Bf5 Re2 Bg6+
n1n1r1N1/Q1rb1B2/q2b1N2/r1R2R2/1Bp2b1r/2NK4/1kPPR3/1q3NbB w - - 0 1 illegal: No possible last move, all moves rejected
1bbk4/Qr2rB2/B4n2/1P1Nbr1B/N1R1qBKP/b1q1R2n/3r3p/R6N w - - 0 1 illegal: No proof kernel
r3N2r/BQn4N/1r3bBk/1PRb3B/1Nqp1P1R/2n4r/1N1b1K2/4q1Rb w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 g4 Kg7 f4 e5 b4 d5 b6 h5 b5 a5 c5 a4 g5 h3 f6+ Kh7 f7 h2 g6+ Kh6 c6 a3 g7 h4 c7 d3 b7 d2+ Kf2 a2 Bd3 e4 Nf3 h3 Nd4 Ne7 g8B Be6 c8N Na6 b8R Nc7 Nd6 Qc8 Qf3 d1R Nd2 Bg7 f8N Bf6 Rg1 h1B Ne8 h2 Nc6 d4 Nh7 Re1 Nc4 Ned5 Nb4 Nc3 Bf7 Bd5 Ba3 Re3 Qg2 Rh3 Rac1 a1R Bh5 Qe6 Nb2 e3+ Kf1 e2+ Kf2 Qc6 Bdg6 Qc4 Rb6 Ra2 Rc6 Ra6 Rc5 Rb6 Rcf1 Bg8 Qb7 Bgd5 Rg4 Ra1 Rh4 Ra2 N2d3 Ra1 Rg1 e1B+ Kf1 Bd2+ Kf2 Bhe4 Nb2 h1Q Nc2 Bf3 Bb4 Raa6 Ba5 Ra8 Nb4 Rba6 Bb6 Bg2 Ba7 Rb6 Rd1 Bge4 Rg1 Bf3 Rg5 Qa1 Rg3 Bh1 Rg1 Qe1+
r1N5/nNq1K1k1/2bB2P1/BBR2rQn/1bP2np1/1q1b4/R1Nb1RB1/n7 w - - 0 1 illegal: No proof kernel
3K3n/2N2qR1/np1Nnq1r/1Rb2BqB/R2B1kr1/3bq3/P2nQPR1/4N3 w - - 0 1 illegal: No possible last move
5Nk1/q2brrp1/2b2Q1R/1K1BbB2/1Pn1R3/R1P1Rn2/N6b/1Nqq1qB1 w - - 0 1 illegal: No possible last move, all moves rejected
3q1N2/3N2P1/nbB1nn2/2nB1R1R/R1K2pbN/r3B1Qb/5PN1/kb2b2q w - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 b5 axb5 g5 Ke2 gxh4 Ke1 Ra6 Qd3 Rd6 Qd2 cxd4 Qd1 d3 Bf4 d4 Bc1 Rd5 exd5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kd7 g4 Kd6 c4 Ke5 b4 h5 c5 f5 c6 h3 g5 h4 b6 f4 b7 a4 c7 h2 g6 a3 b5 a2 g7 h3 b6 Na6 b8R Nf6 Ke1 d2+ Ke2 d3+ Kf3 Kd4 b7 e5 Bg2 Bc5 d6 Bb6 Qb3 d1N d7 d2 Ke2 e4 Nc3 e3 Bd5 Nb2 Nd1 Nd3 Ra8 Rh5 b8N Ndc5 Rb1 Ne6 Nf3+ Kc5 Kd3 a1N Ra7 e2 Nh4 e1B Ne3 d1B Neg2 Bg4 Rb2 Rh7 Re2 Rh8 Re5 Re8 Qa3+ Kb5 Rf5 Nb3 Be3 Nbc5+ Kc2 Re7 Qd3+ Kb4 Bc6 Qg8 d8N Bd7 c8B Re8 Qf1 Ka3 B8b7 Ka2 Qg1 Ka1 Bd5 Re7 Bbc6 Bc8 Ra8 Ra7 Nd7 Qe8 Nf8 Bd7 Nf7 Qd8 Ne5 Bc8 Qf1 Bd7 Qe2 Bc8 Qf3 Bd7 Qg3 Bc8 Rf1 h1Q Ned7 h2 Rg1 Nac7 Rf1 Ra3 Ra5 N7a6 Ra4 Nb3 Kd3 Nbc5+ Kc4 Qg1 Nhg6 h1B N2h4 Be4 Ng2 Qh2 Rh1 Qg1 Rh6 Qh1 Rhh5 Bb1 N6h4 Ng5 Ne5 Be6 Ned7 Bh3 Re5 Beg4 Rf5 Nge6
Rr3qkB/2b1R3/qQp3r1/N5PN/2P1RqqB/2bB4/1r4Rr/1K2nbN1 w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h3 f5 Bc4 Nd7 Be2 Ne5 Bd3 fxg4 Bf1 g3 h4 g4 Qe2 Nf7 Qd1 Ng5 hxg5 Be6 Rh3 Bd7 Rh1 Bc8 b4 Kf7 c4 e5 f4 h5 d4 a5 Kd2 a4 Kc2 c6 f5 e3 d5 a3 d6 a2 f6 h4 d7 e4 b6 g2 b5 e2 b7 e1B b8N e3 b6 e2 b7 g3 Nc3 h3 Bd2 h2 Kc1 Bd6 Rb1 a1Q Nb5 Qa6 Bc3 Nh6 Nd4 Qf8 d8R Bc7 Nd7 Nf5 b8B Kg8 Re8 Rh6 Rb7 Nh4 Nb3 Rg6 Kb1 Nf3 Re4 Bd2 Bd4 e1R Bd3 Bc3 Na5 Re2 Qb3 Ne1 Qb6 Rf2 Ba7 Rb8 f7+ Kh7 Ne2 g1Q Bh8 Qf1 Rg1 h1R Rg2 Rh2 Ng1 Re2 Re6 Qf4 Re4 Qe7 f8R Rb2+ Ka1 Qg7 Rfe8 Qh6 R8e7+ Kg8 Nf6+ Kf8 Nh5 Kg8 Re8+ Qhf8 R8e7 Bh3 Re8 Rc8 Rb8 Rd8 Ra8 Rb8 R8e7 Rb4+ Rb2 g2 Kb1 Rb3 Qb7 Rb4 Bf2 Rb6 Bh4 Rb4 Nf3 g1Q Qb6 Qgg4 Ng1 Bf1 Be5 Ra4 Bh8 Ra2 Rg2 Rb2+
7b/2RrN2q/1rRn3Q/2p2r2/1N2qq2/N1PB1Pnr/nR6/BB1K1Nkn w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 h3 fxg4 Ra6 g3 Ra1 g2 Na3 g5 Nb1 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd4 Rh3 Qd7 Rh1 Qd8 b4 Kd7 d4 Kd6 c3 Kd5 g5 a5 b6 e5 b7 c5 b5 h5 b6 h4 g6 a4 g7 a3 Bf4 a2 Bg5 e3 Na3 Ke4 d5 e2 d6 h3 d7 h2 Bd2 Nh6 g8B Ra6 Nf3 g1N Bh7+ Nf5 Nd4 g2 Nab5 Qc7 d8R Bg7 Nc2 Kf3 Bg8 e4 Qc1 Qf4 Rd7 Nc6 b8N Rh3 b7 Nd6 Rc7 Bh8 Nba3 Nb4 Bh7 Rb6 Rb1 a1R Nc6 Na2 Rb2 Rb1 Be3 Ra1 Kd2 e1R b8N Ne2 Na6 g1Q Ne7 Qg8 Nab4 Ng3 Bd3 Kg2 f3 Rb1 Bf5 Qh7 Rc6 Re2+ Kd1 Ra1 Re1 h1N Bd2 Kh2 Ne3 Rb1 Nf1+ Kg1 Bg6 e3 Bgf5 Ra1 Bb1 Reh2 Bfd3 Rh5 Rc7 Rf5 Re2 Rh4 Rh2 Rhh5 Rh4 Rh6 Rg4 Rh3 Rg6 Nc4 Rgc6 e2+ Kc2 e1Q Be3+ Qf2+ Kd1 Qe4 Bh6 Qfd4 Qg5 Qde3 Qh5 Q3d4 Bc1 Nd6 Qh6 Qf4 Rc2 Qde4 Bb2 Nc1 Rh2 Ra2 Ba1 Rf2 Bb2 Na2 Ba1 Rb2 Nbc2 R2b5 Nb4 Ra5 Rb2 Ra7 Rc8 Rd7 R8c7 Rhh5 Nh2 Rh4 Nf1 Rh3
2r1Rb2/1q2qB2/1qr1B1b1/1p2K2P/NR2b1bN/1P2nQB1/kq1B4/1r2N1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 d5 cxd5 e5 a5 exf4 Na3 Nd7 Nb1 Nb6 axb6 Qd7 Nh3 Qd6 Ng1 Qd8 Kf2 Kd7 h4 Kd6 d4 c5 e4 a5 b3 f5 h5 g5 b7 a4 b8R g3+ Kf3 c4 Qc2 g2 Nh3 g1R Bb2 c3 Na3 g4+ Kf2 g3+ Kf3 g2 Bc4 Ra6 Bc1 Nh6 Bd2 Rb1 Ng5 g1Q Rh4 Qe7 Qd3 Ng4 Nc2 a3 Ne1 c2 Qe3 Bd7 Re8 c1Q Qf2 a2 e5+ Kc7 d6+ Kc6 e6 Qb2 Qg3 Ne3 d5+ Kc5 Qh3 Bc8 d7 Rc6 d8B Bb7 d6 Qh1+ Ke2 f3+ Kd3 f4 Ke4 f2+ Ngf3 f1B d7 Be2 Bc7 Qg2 d8N Rg8 Bc1 Kb4 Bd2+ Ka3 Qg3 Ba8 Nb7 Qg1 Nc5 Qbg7 Nh2 f3 Na4 f2 Qf3 f1B Bg3 Bd3+ Kf4 Bg6 Bd5 Qh7 Ke5 Bh3 Rb4 Bg4 Bc4 Qb7 e7 Qf7 Be6 Rh8 Rc8 Rg8 e8B Qfe7 Rd8 Rcc1 Nf1 Nc4+ Kf4 Qba7 Nc3 Bae4 Qf2 Rb2 Na4 Bg7 Nf3 Qab7 Ne3 Rbc2 Rb1 a1Q Nh4 Ka2 Qf3 Qb2 Neg2 Qgb6 B8f7 Ne3 Rf8 Rc3 Ra8 Bh6+ Ke5 Rd8 Rc8 Bf8 Rb8 Rd6 Re8 Rf1 Rd1 Rd8 Rb1 Rdc8 Re1 Rf2 Rh1 Rf1 Rg1 Rb1 Ne1 R3c6+
2B1kn2/5r2/B5q1/Rn2nQNp/1brBqR1p/2NN3b/PK1PB3/4b1Rr w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 g4 c5 e4 b5 g5 c4 d6 b3 e6 b4 e7 c3 e5 c2 g6 b2 g7 b3 Nc3 b1Q Nh3 Ra4 Bb2 c1B Ng5 Qe4+ Be2 Nc6 Rf1 Bh3 Qc2 Rc4 Kd1 Qb6 Rf4 Nf6 g8B Nd7 Qb1 f5 Be6 h5 Qd3 Bh6 Qd5 Nf8 Bc8 Rh7 Ba6 Kd7 e8R Rf7 Ra8 Bg7 Ra7+ Ke8 e6 Bd4 e7 Bf2 Bc8 Ne5 Ra5 Be1 Ba6 Kd7 e8B+ Kd8 d7 Qg6 Rb1 Ke7 Ba1 Ba3 d8N b2 Bd7 Bb4 Bdc8 Ke8 Rc1 b1N Nde6 Na3 Nc5 Nb5 Nd3 Qc6 Kc2 Qg6 Rf3 f4 Kb2 Qd6 Rf2 f3 Rf1 f2 Qe6+ Re7 Qf5 Qg6 Rg1 f1R Rg4 Bg3 Rf4 Rh1 Rg1 Be1 Kb3 Qa8 Na4 Ra7 Bd4 Qg2 Kb2 Rf7 Nc3 Qe4
qk2Bn1R/1n4q1/1N2br2/2RNKRp1/B4R2/Pr1nB1Q1/3rPp2/3qN1b1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Ke3 c5 Ke4 Kc7 h4 f5+ Kf4 b5 d4 c4 a3 g3 h5 b3 h6 c3 e6 b4 e7 b2 e8B c2 h7 g2 Be3 c1N Qe1 b3 Nc3 b1Q Ke5 b2 Rh5 f4 Na4 f3 Nb6 Na6 d6+ Kb8 d5 Nf6 d7 Bc5 d6 Rf8 h8R Nh7 Rf5 Rf6 Qg3 Nf8 Rh4 Qd3 Rhf4 b1R Ra2 g5 Rc2 Qd1 Rcc4 Qc7 d8R Qg7 d7 Rb2 Rc3 Rd2 Rc2 Ra7 Rc3 Rb7 Rc2 f2 Nf3 g1Q Bh3 Qh1 Ne1 Bb4 Bg2 Nc5 Bc6 Qf3 Ba4 Ba5 Na8 Rb3 Nb6 Nb7 Rc5 Qg2 Bg6 Qh1 Re8 Bb4 d8N Qg2 Ne6 Nd3+ Kd4 Qh1 Nc7 Qhh8 Ncd5 Bc3+ Ke4 Be5 Re7 Be6 Bge8 Qg6 Rh7 Qgg7 Rf3 Qhg8 Rh8 Bf4 Qh4 Bh2 R3f4 Bg1 Qg3 Qd7 Kd4 Qgg7 Ke4 Qb5 Kd4 Qa5 Ke4 Qa8 Kd4 Nc1+ Ke5 Nd3+
3b2r1/2n5/k3NKQ1/p1RrnB2/B4PpB/2RP1N1q/nr2N1RB/3q1b1q w - - 0 1 illegal: No possible last move
B2N1nb1/1qr2qq1/QpNr1NRB/1R1n2r1/1PNR4/2KBP3/1pb3k1/b7 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 a4 Qb3 axb3 d4 Ke7 Kd2 Kf6 a4 Kf5 h4 Ke4 a5 g5 a6 c5 a7 f5 e3 f3 h6 g4 d6 b6 d7 f4 h7 c4 d5 g3 h5 g2 d6 f2 h6 c3+ Ke2 c2 Kd2 f3 Rh5 Qe7 d8N Bg7 d7 Nf6 Na3 Rg8 h8R Nd5 Ne2 g1Q Bb2 c1R h7 Rc7 Rd1 Bd4 Nc6 Rg5 d8N Bf5 Nf4 Nd7 Bb5 f1Q Rg8 f2 h8Q Kf3 Bd3 Nf8 Nc4 Be6 Rg7 Bg8 Rg6 Qfg2 Bc3 Qf7 Bb2 Rac8 a8B Q2h1 Qh7 f1B Ba1 Bh8 Bg7 Rd7 Bh6 Rd6 Qg7 Rc7 Qa1 Kf2 Qa5 Ba1 Qa6 b2 Kc2 Bg2 Kb3 Be4 Kc2 Ne7 Nd5 Kg2 Nf6 Bf5 Kc3 Be4 Be2 Bc2 Rd4 Nd5+ Kd2 Rg4 Re5 Rg5 Bd3 Ne7 Rb5 Nd5 Bg7 Qh7 Bh6 Qhg7 Bf5 Qf1 Be4+ Qf3 Bd3 Ne7 Kc3 Qe4 N6a5 Qb7 Nac6 Nd5+
NB2R3/R1Q1Nb1q/Pq1N3p/1r4k1/r2pPn1r/2B3bB/3KR1Nn/b5n1 w - - 0 1 illegal: No proof kernel
3q4/4rN1P/qb2K2R/k2B3p/1nrq2N1/1rnNNbP1/1Qp2R1b/2B1R1B1 w - - 0 1 illegal: No proof kernel
nr1r1BRN/Q1N2Bpp/2b2q2/2R2n2/2K2P2/3rB2B/1nPb1q2/1k1bR2N w - - 0 1 illegal: No proof kernel
qkq3R1/3BBPN1/2pr3n/1n1b4/N1rR2bb/1BpBNP2/rnR2Q2/2K5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 dxc4 d4 Kd7 Kd2 b5 a4 e5 g4 h5 f3 e4 a5 b3 f6 b4 g6 b2 d5 b3 d6 h4 a6 h3 g5 h2 g7 Qe8 a7 Na6 g6 Be7 Ne2 Nh6 Nbc3 b1R g8R b2 g7 e3+ Kc2 Qf8 Nd4 e2 Na4 c3 Qd2 e1N+ Kd1 Bb7 Bd3 Kc8 Nc2 Bd5 d7+ Kb7 Ne3 c6 Qf2 Nc7 Ra2 Nb5 d8N+ Kc8 Rg1 h1Q Ne6 Qh3 Rg4 Ra1 Rb4 b1B Rc2 Ra2 Ba3 Kb7 Rg4 Rd8 a8B+ Kb8 Bb7 Rd6 Rd4 Rh7 Bc8 Qg4 f7 Bh4 Bd7 Qf5 Bc4 Nd3 Bb3 Nb2+ Kc1 Qd8 Rf8 Qh3 g8B Rg7 Re8 Rg4 Bh7 Rf4 Rg8 Qf8 Rd3 Rc4 Ng7 Qe6 Rd4 Qf5 Be8 Qc8 Bd7 Qfd8 Bhf5 Qa5 Bd3 Qa8 Re2 Rg6 Be7 Rd6 Be4 Bd3 Rc2 Bf1 Bef5 Bh3 Bd3 Bg4
3r4/nNr2pQp/5q2/KB1R1r1N/bN3P1B/qkn4R/1PN2BRb/4b2q w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 c6 bxc6 d5 Ra3 dxe4 Ra2 Na6 Ra1 Nb8 f4 a5 d4 e5 Kd2 Ke7 Kc3 Kd6 g4 Kd5 g5 a4 c7 a3 g6 e3 g7 a2 Na3 e2 Rh3 e1R Qg4 e4 Bb5 e3 Ne2 Rh1 Ng3 e2 Be3 Bd7 c8N Be8 Ne7+ Kd6 Kb4 Ra5 c4 Rc1 d5 Nf6 g8R Ne4 Qg7 Nc3 Bf2 e1B Nc6 Qf6 Nh5 Be7 Rb1 a1Q Nc2 Qa2 Ra1 Bd8 Rb1 Bb6 Ra1 Qb1 Ra3 Qa1 Rd3 h3 c5+ Kd7 d6 Ke6 d7 h2 d8B h1Q Rd5 Qa2 Rb3 Qa3+ Kc4 Bd7 N6b4 Nc6 Be7 Na7 c6 Bc5 c7 Bd4 c8N Be8 Ba6 Ba4 Nd6 Rb5 Nb7 Bc5 Bg3 Bg1 Bf2 Ra5 Bb5 Bh2 Rc8 Rg8 Kc5 Rd8 Kb6 Na2 Rh3 Nc3 Be2 Rc5 Bb5 Rc7 Ka5 Rd1 Rg5 R1d5 Rg2 Rf5 Rb8 Qd4 Beh4 Qf6 Nd3 Kd5 Ra8 Rdd7 Rd8 Rd6 Be8 Kc4+ Bb5+ Kb3 Ndb4 Rd3 Rd5 Rd4 Re5 Rd6 Rd5 Rd8
1k2bNR1/nB2P1B1/2rnrR2/8/RK4bq/p1BqrNb1/pN1PN3/5nQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 bxa4 c4 d5 cxd5 exf4 e4 Kd7 h4 f5 b4 a5 h6 g5 h7 c5 b5 Kc7 h5 c4 h6 a3 e5 f3 e6 a2 Bh3 f4 Bb2 f2+ Ke2 f1N Na3 g4 Bc3 a4 Bg2 g3 Nf3 Bd6 e7 Nc6 b6+ Kb8 b7 Bg4 Qb1 Bc7 d6 Na7 d7 Nf6 Qc1 Rg8 h8R Ne4 h7 Nd6 Rh6 Rg6 Rg8 Re6+ Kd1 Re3 Kc2 Re6 Bh1 g2 h8B g1Q Bhg7 Qh2 Rf6 Qh4 Qe1 Re3 Qf2 Re6 Qg1 Re3 Bb2 Re6 Kc3 Re3+ Kb4 c3 Rc1 c2 Bc3 Re6 Nc4 a3 Re1 c1R Re4 Re1 Nb2 Re3 Rc4 Qc8 d8N Qd7 Nf7+ Qd8 Nd4 f3 Ng5 f2 Bc6 Ne4 Bd5 Bg3 Ngf3 Rc6 Ne2 Nd6 Bf8 Qd7 Rd4 Qf5 Rc4 Qd3 Bg7+ Nac8 Rcf4 Ra5 Be4 Re5 Bd5 Re6 Rd4 Kc7 b8N Na7 Nd7 Kb7 Nf8 Kb8 Ne5 Nh2 Re4 f1B Nf3 Bfh3 Rc4 Nf1 Rcf4 Rc5 Bb7 Rc6 R4f5 Bg2 Ra5 B2h3 Ra4 Bh5+ Ka5 B3g4 Kb4 Be8
1NR5/3P1N2/K1r1rQNb/BRqb1B2/1p1P1q2/B1B3p1/4Rn1b/q2nr2k w - - 0 1 illegal: No possible last move, all moves rejected
b2rk3/qp3N1q/4rRBB/1r3R2/4N2N/KRB1Qq1n/2Pp1P2/bR1n3b w - - 0 1 illegal: Other
b1N4Q/3BR1n1/4RN2/1b4q1/PR1n2pp/B2k1b2/3PNBn1/br1b1rRK w - - 0 1 illegal: No proof kernel
B1QK3N/2n5/3nRPN1/rkP2r1q/1B2RBR1/b2b1p2/4pn1n/1b2n1NB w - - 0 1 illegal: No proof kernel
1B1R1R2/N3Q1p1/1q2Np2/2n2r1P/1kP1bR2/2br1B1b/K1r2Rb1/B2nN2b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 Kd6 b4 a5 h4 f6 c4 a4 Kc2 a3 Kb3 a2 h6 f3 h7 d3 b6 d2 b7 f2 h5 Qb6 b5 Kc5 e5 d5 e6 d4 e7 d3 e8N Nd7 b8B Nh6 Nc3 Ng4 Rh2 Ra5 Be2 f1B Bb2 Bg2 Nc7 Ne3 Qe1 Nd1 Bf3 Bd6 Qe2 Rd8 h8R Be5 Rf8 Bb7 Rc1 Be4 Ba1 Bh3 Rf2 Bd4 N3d5 Bc3 Ne7 Bg2 Nc8 Bh1 Bb2 a1R Na7 R1a2 Ba1 Rc2 Qe1 Nb2 Rb1 d1B Rc1 d2 Qe2 Qb7 b6 Rb5+ Ka2 Kb4 Rb1 Nc5 Ne6 Rd3 Qe1 Qc6 b7 Qb6 Qe3 Be2 Rbf1 d1B Rd8 Bf5 Qe5 Bh3 Qc7 B1g2 Qe7 Bh1 Be4 Beg4 Nf3 B3g2 Ne1 B4h3 Rf4 Bdg4 Bf3 Bf5 Rf2 Bh7 Bd6 Be4 b8R Rd5 Rf8 Rf5 Rbd8 Nd1+ Kb1 Ra5 Bb8 Ra3 Be2 Bb2 Bf3 Rd3 Ka2 Bc3+
3b1NR1/5P2/B1bN1q2/1BbN3b/RB3bBn/Krn2QP1/2krp2p/n5R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 c4 Ke6 Kc2 Kf5 Kb3 a5 f4 h5 g3 d5 c5 e5 g6 e3 g7 Ke4 c6 d3 c7 e2 f5 e1B b6 d2 f6 h4 b7 d4 f7 a4+ Ka2 d3 b4 h3 b5 a3 b6 h2 Be2 Ne7 g8B Nbc6 b8R Bb7 c8B Nb4+ Kb3 a2 Be6 Bc6 b7 Nf5 Bg4 Nc2 Nh3 Nh4 Rg1 Bc5 Kb2 Qf6 Bd7 Ra3 Qe2+ Kd4 Nc3 d1B Nd5 e4 Qf2+ e3 Bh7 d2 Qf3 Rd8 Ng5 Rc3 Ne4 Kd3 Rc8 Bf2 b8N Bb6 Rb1 a1B+ Ka2 Be2 Ba3 d1N Rb4 Rb3 Ra4 Be5 Bb4 Na1 Be8 Bf4 Nd7 Bbc7 Nf8 Kc2 Rca8 Bb6 Bhf5 Rd6 Bc8 Bd8 Ba6 Rd7 Nb6 Rd2 Nd5 Bd3 Nd6 e2 Rc8 Bc5 Bed7 Bg6 Be8 Rb2+ Ka3 Bh5 Bed7 Nc3 Rb8 Bb7 Bdb5 Bc6 Ng6 Bdb6 Rg8 Bd8 Nf8 Rb3#
2n2rr1/2nNkP2/N2b1rR1/2p2P1r/R1r1p1b1/2n3qR/N2KQ3/2N1BB1B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 d4 e5 f4 h5 b4 a5 g4 c5 f6 h3 d5 a4 g5 c3 g6 c2 f7+ Kd7 b6 h4 b5 h2 g7 h3 b7 a3 b6 a2 Qe2 Ne7 g8B Qc7 Nc3 Na6 Bd2 c1N b8N+ Kd6 b7 Bg4 Bh7 Nc8 Nd7 Rg8 b8N Ke7 Be4 Qd6 f5 Nc7 Beg2 e4 Na6 Qg3+ Kd1 Rb8 Be1 Rb4 Kd2 Rc4 Rb1 a1R Rb6 Rb1 Rg6 Rb6 Na2 Rf6 d6+ Kd8 Qf2 Ne2 Bf3 Nc3 Ne2 Be7 Nec1 Bf8 Qe2 Be7 Rg1 h1R Rh6 Rh2 Bh1 Rg2 Rh8 h2 Rh3 Bf8 Ne5 Rh8 d7 Ke7 d8R Bg7 Kc2 Rf8 Rd4 Bh6 Nd7 Bf4 Rd3 Bd6 Kd2 Qf2 Rd4 Rg3 Bf3 h1R B3g2 Rh2 Bh1 Rgg2 Rhd3 Rh5 Rh3 Rg3 Rg2 Bf3 Rg1 Rgg8 Rg7 Bg4 Rg6 Rb4 Rc4 Qg3 Rd4 Rb6 Ra4 Rb4 Rh4 Rc4 Rh2 Na8 Rh3 Nc7
rbR2bn1/1nb1p3/B1qN2PP/N1B1bB1b/4p3/1nK2N1Q/3R4/1k1r1RN1 w - - 0 1 illegal: No proof kernel
1R2R1r1/1n1PBbkp/2P1B3/n2b2K1/2NR2b1/4Rp2/b1qbN1Br/2rQ3N w - - 0 1 illegal: No proof kernel
2q2n1n/1P2kb1r/R7/1b2p1R1/BNQb2r1/b2NpN1b/1PBKnB2/R3R3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 h5 g4 a5 d4 h3 b6 h2 f5 h4 f6 a4 b7 a3 g5 a2 g6 h3 g7 Ra4 d6 Nh6 g8B Nd7 d5 Nf7 Bd3 Rh7 Qc2 Nh8 Ne2 c6 Rg1 h1B Nf4 h2 Rg5 Bf3 Nd2 h1B Qc3 Bh5 Qc4 Bf7 Nf3 Bg2 Ke2 Bh3 Be3 e6 Re1 a1N Bc2 Nb3 Bf2 Nd4+ Kd2 Ne2 Nd3 Be7 Ra1 Nf8 Re1 Qc7 d7+ Kd8 Ra1 Ba3 Re1 e5 Ra1 c5 Re1 Ra6 Ba4 Bfe6 f7 Ke7 d8R Bcd7 Ra8 Bb5 Bc2 Rd6 Ra6 Qc8 Ba4 Rd7 Bc2 Rh4 Ba4 Rg4 d6+ Kd8 Bc2 Rc7 d7 Ke7 d8N Rd7 Qd5 c4 Qd4 Nh7 f8R c3+ Kd1 Bf7 Qc4 Rc7 Ba4 c2+ Kd2 Be6 Rf6 Bf7 Rff5 Nf8 Nc6+ Kd6 Ncb4+ Ke7 Rff6 Rd7 Ra7 Rc7 Rfa6 c1B+ Kd1 Be3 Kc2 Bd4 Kd2 Bg6 Bd5 Bf7 Bc2 Bd7 Bc6 Bde8 B6a4 Bb5 Ra8 Rc6 Rb6 Rh6 Raa6 Rh7 Rh6 Bf1 Rh1 Bg2 Ra1 Bh3 Rhe1 e3+
3rK1R1/2br1rpb/1B2PR1n/1N1p4/1Qr5/1q5n/1R1N1R1P/1qk1rNBB w - - 0 1 illegal: No possible last move, all moves rejected
rn6/bN2kP2/1q2N3/1Pn1R1p1/3Qp2B/R2B1R1N/qB1n3n/KnNbr3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 c5 Kd2 g5 Kc2 a5 b4 e5 Kb2 a4 f4 e3 h4 e2 f5 e1N b6 e4 d6 g3 d5 g2 h5 c4 b5 Nh6 f6 Nc2 b7 Nf5 f7+ Kd7 h6 Nfe3 h7 Qc7 Qd4 Ng4 Nh3 g1N Nd2 Qb6 Bd3 Nh2 Nb3 Ngf3 Rf1 Nd2 Rf3 c3+ Ka2 a3 Bb2 Kd8 d7 Ke7 d8N Bg4 Nc1 Bh5 Ne6 Bg4 Rf2 Bd1 Rf6 Bg7 Rf3 Rc8 h8R Rc5 Qc4 Bd4 Rh6 Rc8 Rhf6 Rh8 R6f5 Rh4 Qa4 Rg4 Qc4 Rg1 Re5 Re1 Qa4 Qa6 Qc4 Ba7 Qa4 Qb6 Qd4 Nb3 Kb1 Nc5 Ra2 Ne3 Ka1 c2 Nb3 Nc4 Nc1 Nd2 d6+ Kd7 Nef4 Kd8 d7 Nb1 Ne6+ Ke7 d8N Nc6 Ne2 c1Q b8B Qc4 Bc7 Nb8 Nc1 Qc2 Nb7 Qf2 Rd5 Qd2 Bg3 Qf2 Bc3 Qe2 Bh4 Qg2 Rb2 a2 Rb3 Qc2 Ra3 Qa4 Kb2 a1N Re5 Nab3 Ka2 Qc4 Bb2 N3d2+ Ka1 Qa2+
1q3k2/1NnqN2n/q1R2B2/1Q1NR3/4qnrp/P1r1p2P/R3B2K/B2b1b1R w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 e6 b4 axb4 f4 Bd6 f5 Bf4 g3 f6 e5 fxe5 gxf4 e4 Kf2 b5 Kg2 c5 d4 g5 a3 h5 f6 e5 h3 c4 f7+ Kf8 f5 e3 d6 e4 d5 h4 d7 g4 d6 e2 Bb2 e1Q Bd3 c3 Ra2 g3 Bc2 b3 Bc1 b2 Qg4 b4 Bd2 b3 Qh5 Ba6 Bd1 c2 Nf3 c1Q Bg5 Qc4 Nd4 Nf6 Nc6 Rg8 Ne7 Nh7 Bf6 Rg4 Nc3 b1Q Be2 b2 Ncd5 e3 Be5 Qd2 Bd4 Qe8 d8N Qe4+ Kg1 b1B d7 g2 Kh2 g1N Nb7 Ra7 d8B Bc2 Ba1 Bd1 Qg5 Qd7 Qh5 Qcc6 Qg5 Qb2 Qh5 Kg7 f8R Bb5 Rh8 Na6 Re8 Nc7 Qg5+ Kf7 f6 Qa6 Qe5 Ra8 Qf5 Rc8 Qh5+ Ke6 f7 Bd3 f8R Bc4 Nd6 Qb8 Nb7 Bb5 Rh8 Bd3 Qg5 Kf7 Rhg8 Bb5 Rg6 Bc4 Rc6 Bb5 Bf3 Ne2 Qe5 Nf4 Be2 Bd3 Qb2 Bc4 Qb5 Bd3 Ng8 Bc4 Re5 Kf8 Bf6 Bd3 Nge7 Bc4 Bf3 Bf1 Be2 Na8 Rce6 Rc3 Rc6 Nc7
1q2N2B/k2Kn1B1/1Rb3r1/1RrB4/PRpbR1P1/5nQN/1q1n3p/2b1b2N w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 e5 f4 h5 g4 b5 a4 c5 d4 Kc7 g6 Kb7 d6 b3 g7 h4 f5 b4 d7 c4 d5 h3 f6 h2 f7 b2 d6 b3 Nc3 b1N Nh3 b2 Qd3 Ra6 Nd1 Nd2 Rb1 Be7 f8B Nc6 Ndf2 Na7 Bg2 Nb5 Re1 Rh5 Nh1 Nd4 Qa3 Qc7 d8R N4f3 d7 Bf6 Re2 Ne7 g8N Rg5 Bg7 Ka7 Qb3 Bb7 Rb8 Re6 d8R Bc6 Rb6 Qb8 Rd5 Rd6 Rc5 Rg6 Rcb5 Rd5 Bh8 Rc5 Qd3 Bg7 Nf6 Bh6+ Nf4 Bg5 Ne8 Bf6 Nh3 Bg7 Ra1 b1Q Bb2 Bf6 Bd4 Qb2 Ra3 Bg7 Rab3 Bf6 R3b4 Bg5+ Kf2 e3+ Kg3 e4+ Bde5 Bf6 Kf4 Bg7 Re1 e2 Qa3 e3 Qd3 Ng8 Kf5 Bf6 Ke6 Ne7 Qd6 Bg7+ Bf6 Bh6 Qg3 Bf4 Rg1 e1B Rf1 Bf2 Re1 e2 Bg7 Bd5+ Kd7 Bd4 Bh8 Bg5 Bfg7 Ba8 Rc1 e1B Rb1 Ng1 Bd5 Ngf3 Ra1 Nf1 Ra3 Bc1 Re3 N1d2 Re4 Bc6+
Rn1N4/2QNq1kB/n3r1rN/R4np1/BqK3P1/BR5r/1pn1P3/2N2b1b w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 exf4 h5 g6 h6 Bg7 hxg7 Ra3 Rh2 Ra6 Rh1 Ra8 g4 b5 d4 h5 Kd2 c5 Kd3 f5 a4 Kf7 a5 g5 a6 c4+ Kc2 f3 a7 h4 d6 c3 Kd3 c2 d7 f4 d5 h3 d6 b3 Nc3 h2 Na4 b4 Ra3 f2 Nf3 b2 Kd4 b1Q Nb6 b3 Bg2 f1B Qe1 Ne7 g8B+ Kg7 Ne5 f3 Kd3 f2 Qa5 Rh6 Bh7 Rg6 Bc6 Bb7 Ba4 Nf5 Kc4 Qe7 d8N Be4 Bb2 c1N d7 Na2 Ndf7 Nb4 d8N N4a6 Nh6 Bb7 Rg1 h1R Rg3 Rh3 Nbd7 Bh1 Qc7 Qe1 Ra2 Qa5 Ba3 b2 Nd3 Re6 Nc1 Qab4+ Kd3 Bfg2 Qc8 f1N Qc7 N1e3 Rf3 Nc2 Re3 Qbd6+ Kc4 Bf1 Rb3 Nc6 Ndf7 Rg8 a8R Ncb8 Ra1 Rf8 Nd8 Rff6 Ra2 Rg6 Bc5 Qd1 Bb5 Rc6 Ra5 Qe1 Ba4 Rce6 Ba3 Q1b4+
Rrr1r1n1/8/bN1R3R/1NQP1pb1/2nN1Pkq/pq1N2Bb/3B2BK/6r1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 d4 Kd7 g4 Ke6 c4 a5 g5 Kf5 c6 h5 c7 e5 c5 f6 d5 e3 g6 a4 c6 e2 b6 e4 b7 h3 g7 h4 Qc2 h2 Nf3 h3 Bg2 Be7 Nbd2 Nd7 b8B Kg4 Nb3 f5 Bd2 Ba6 c8N Qb6 c7 Ne5 Nc5 Qb3 Na7 Nc4 c8N Bg5 Bg3 Rb8 Nd4 a3 Nb6 Rc8 f4 Rb8 Kf2 e1R Qc3 Rg1 Nab5 Rc8 Nd3 e3+ Ke2 Rb8 Qb4 Rc8 Qc5 Rb8 Rf1 Rc8 Ke1 e2 Kf2 Rb8 Rb1 e1R Rc1 Ree8 Rc2 Rh6 Rc1 Rc6 Re1 Rc7 Re6 Rcc8 Rd6 Ra1 Re1 h1Q Ree6 h2 Rh6 Rb1 Be4 Qe1+ Kg2 h1B+ Kh2 Ra1 Bg2 Qe7 Bf1 Bf3 Bg2 Rg1 Qc7 Be2 Qc6 Bf1 Qc5 Nf6 g8R Qd8 Rg7 Ng8 Ra7 Qf6 Ra8 Qh8 Bh1 Bh3 Bg2 Qh7 Rhf6 Qh5 Rh6 Qh4
1Bbr2BN/3RN3/1r1QBq2/1kP3bb/1p2P3/3RpqK1/2R1Brn1/1r2n2N w - - 0 1 illegal: No proof kernel
5Bk1/4BR1r/1b2bq2/1PNNQN2/1Np2R2/1P2rn1p/Kb1b1n1q/Rn5B w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 g4 e5 d4 c5 Kd2 h5 Kc3 a5 Kb3 c4+ Ka2 e3 d6 e4 g5 e2 f5 e1B d7 e3 f6 e2 d5 a4 b3 h3 d6 a3 Qd4 h4 Nc3 h2 Bg2 h3 Qe5 Bd2 Nf3 e1N Rf1 h1Q Nh4 Rh7 Rf4 Nf3 Nf5 Ne7 g6+ Kg8 g7 Na6 Nd5 Qh2 Bh1 Nc5 Bb2 Qb6 d8N Ne4 d7 Nf2 Nc6 Qd4 d8R Be6 Rd7 Re8 Ncb4 Qb6 Bd4 Qc6 Bc5 Qa6 Nde3 Nd5 Rf7 Be7 Bd6 Bd8 Be7 Bb6 Rh4 Nf4 Ned5 Ne2 Rf4 Rd8 Nc3 Rd3 Na4 Re3 Nc5 Qc8 Kb1 a2+ Kb2 Nc3 Ka3 Rh8 Kb2 Qf8 Ka3 Kh7 g8N+ Qg7 Kb2 Nb1 Rf8 Kg6 f7 Rh7 Nf6 Qh8 Nfd5 Qf6 Ncd3 Rh6 Nc5 Kh7 Rg8 Rh5 Rg7+ Kh8 f8B Rh7 Rf7 Kg8 Bh6 Qg2 Bg7 Qh2 Bgf8 Na3 Rd1 a1B+ Ka2 Bb2 Ra1 Nb1
5R2/q1QB2BN/Rb5K/PrrN1n2/n1Rnk1bp/1BP4q/1bp5/b2RN3 w - - 0 1 illegal: No proof kernel
5N2/3bNb2/kb2B3/P2Nr3/1K1Qpr1q/1R3BPR/np1B3r/2qNRn1r w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kd7 Kd2 h5 f4 c5 a4 Kc7 a5 e5 g6 b5 g3 Kb7 f5 c4 d6 c3+ Kc2 e3 Kb3 h4 d7 h3 f6 h2 f7 c2 d5 e2 d6 e1R g7 Nf6 g8B Ng4 Qe2 Nc6 Be3 c1Q Qc4 Nd4+ Ka2 Ne2 Kb3 Ka6 Qd5 Nc3 Bd2 Qh4 d8R Bd7 Be2 Ne3 Rb8 Nf1 Bf3 e4 Rb7 Re8 Nh3 Re5 Nf4 Be7 f8N Bd8 Bf7 Bb6 Qd4 Re2 Nd5 Rf2 Be6 Rh6 Rg1 h1R Rg2 Rf6 Rh2 Rf4 Rh3 Re2 Na3 Rf2 Nc2 Rfh2 Nce3 Qe1 Kb2 b3 Ka3 b2 Kb4 Qc1 Nd1 b1B Rb8 Ba2 Rb1 Bc8 d7 Bc4 d8N Bd7 Nc6 Ba2 Nf6 Bb3 Ne7 Bd5 Bf5 Bg8 Nfd5 Bf7 Kb3 b4 Be6 Bd8 Kc4 b3 Rb4 b2 Rb3 Bc7 Kb4 Bb6 N1e3 Qc2 Re1 Qc1 Nd1 Na2+
3qQb1n/4q3/n1KB1r1R/pR1rb2B/P1kqNp1R/1NP4N/2R3bb/1B6 w - - 0 1 legal: proof: g4 e5 f4 exf4 g5 c5 g6 d5 Nh3 d4 Nf2 d3 cxd3 c4 Nh3 c3 bxc3 hxg6 Ng1 g5 Ba3 g4 Bb2 Qg5 Bc1 Qd8 Kf2 Ke7 h4 Ke6 e4 b5 a4 g5 e5 Kd5 e6 a5 e7 f5 e8B g3+ Kf3 b4 d4 g2 h5 b3 h6 b2 h7 Bb7 Nh3 g1B Qe2 Be3 Ra2 Bc5 Bh5 Bg1 Qe8 Nh6 Bd3 Rf8 h8R Nf7 Rh6 Qe7 Bc2 Kc4+ d5 Bc6 d4 Na6 Be4 Rd8 d6 Nh8 d7 Ba3 d5 Rf6 d6 Bd4 Be3 Be5 Bc5 Ba8 Rh2 Bb4 Rc2 Bc6 Ra3 Ba8 Rb3 Ba3 Rb5 g4+ Ke2 g3 Kf3 g2 Bb4 Rc8 d8N g1B d7 Bh2 Ne6 Rc5 d8R Rd5 Bd6 Bc6 Neg5 Bb4 Kf2 f3 Ke3 f2 Rd7 Qd8 Rdh7 f4+ Kf3 Bc5 Bf5 f1Q+ Ke4 Qg1 Bfg6 Bb4 Bf5 Qa7 Bfg6 Qae7 Bf5 Kb3 Nd2+ Ka3 Nb3 b1Q Bf3 Qc1 Rh4 Qh1 R7h6 Qg1 Bh5 Qd4+ Kf3 Qf7 Nd2 Qg1 Bb8 Bf8 Ke4 Qfe7 Rc1 Qgb6 Bd6+ Rc5+ Kd3 Bd7 Ke4 Be6 Bfg6 Bc4 Bh7 Bf1 Bf5 Ka2 Bfg6 Rc7 Kd5 Qe3 Bd3 Bg2+ Nge4 Rc4 Bc2 Rd4+ Kc6 Rd5 Bd3 Qd4 Bc2 Qb4 Bb1+ Kb2 Rc2+ Ka3 Nf3 Kb3 Nd4+ Kc4 Nd2+ Kd3 N4b3 Qd4 Ne4 Kc4
R2B2qn/2BB2q1/4P1b1/4R1nb/1N3k1K/Q5Nr/nRppPr2/bb1N2B1 w - - 0 1 illegal: No possible last move, all moves rejected
3bK2B/b1q1r1R1/r2p2B1/Q1P2N2/RPqn2R1/2krpN2/5nN1/R1B2b1r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 a5 c4 d6 f4+ Ke4 b4 e5 g4 h3 b6 d3 f6 Kd4 f5 h2 f7 d2 f6 a4 b7 a3 g5 e4 g6 a2 g7 h6 Kg6 h5 Qa4 d1R Na3 e3 Qa5 h4 Nf3+ Kc3 Rg1 h1R Rg4 h3 Nc2 h2 Bd3 Qc7 Ncd4 Ra6 Nf5 Be7 f8B Nh6 g8R Bd8 f7 Nc6 b8R Nd4 Ra8 Rh7 Rg7 Rd2 Be4 Rd3 Be7 Bd7 f8N Ba4 Ne6 Bb5 Rg8 Rf7 Bf6 Rh7 Bh8 Re7 Rh4 Ng4 Rg7 Nf2 Nf4 Re5 Ng2 Re7 Rb1 a1B Rg4 Rg1 Kf6 h1Q Kg6 Bb2 Ra1 Qh7+ Kf6 Qg8 Kg6 Rh1 Ra7 Ba4 Kf6 Bd1 Ra4 Be2 c5 Bf1 Kg6 Qc4 Ra1 Qb8 Kf6 Bb6 Ra8 Ba7 Ra4 Re6+ Kf7 Qc7+ Kf8 Re7 Ra1 Rd7 Ke8 Rf7 Ra4 Re7+ Kf8 Re5 Ng3 Ne2 R4g5 Kb3 Ra2 Bb6 Bg6 Ra7 Qb5 Ra3 Ra6 Ba7 Ra1 Re6 Qb6 Bf6 Rg4 Bd8 Nf5 Kc3 Ra5 Nd4 Qa6 Rf6+ Ke8 Rf7 Qb6 Rb3 R5a2 Ra3 Qb5 Ra6 Qa5 Rd7 Ra4 Re7+
rRq5/2n1N3/1P1Rp1r1/3NP2B/1b2k1rn/2B3pN/q1r1nK1Q/bRN2B2 w - - 0 1 illegal: No possible last move, all moves rejected
1K1BB1R1/2Qr4/Np1b1bBq/4p2b/nP1R3b/3rR2N/PB3qkr/n5N1 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 g5 h4 gxh4 Qe2 f5 Qa6 fxe4 Qxa5 Bd7 Qa7 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 e5+ Kc4 c5 Kb5 b6 f4 h3 d4 h2 g4 e3 f5 h4 g5 h3 f6 e2 f7 e1B g6 c4 g7 c3 Ba3 c2 Bd3 c1B Nd2 Bg4 Bb2 Bh4 Ndf3 Qf6 Bg6 Bcg5 Rd1 Ne7 g8B Nbc6 Ka6 Bh5 Kb7 Rd8 Re1 Rh7 Re3 Rd7+ Ka8 Na5 Kb8 Nb3 Qb7 Bfh6 f8R Na1 B8f7 Qf4 Qc8 Bf6 Rg8 Bf8 Ng5 Qf2 Be8 Rd8 Ne6 Rd7 Nc7 Rf7 Na6 Rg7 Bb1 Rg3 Bbg6 Rf3 Re4 Rd3 Re3 Nf5 Qc2 Ng3 Qc1 Ne2 Qc7+ Ke7 d6+ Ke6 Ba3 Kd5 Bb2 Re7 d7 Nc3 d8N Na4 Ne6 Rd7 Ng5 B8e7 Ne2 Bd6 Rd1 h1Q Ng1 h2 N5h3 Qhf3 Kc8 h1R Kb8 Rh2 Rd2 Qf4 Rd1 Bfe7 Rd2 Qh6 Rd1 Ke6 d5+ Kf6 Bgf7 Kf5 Bg6+ Kg4 Rd2 Bc5 d6 Bef6 Rd1 Rg7 d7 Bd6 d8B Rd7 Ree1 Kg3 Re3+ Kg2 Rd2 Rb3 Rd4 Rd3
NNB2k2/3K3q/qp1NR1r1/1PPRb2p/6nn/B1B2b2/1N3b1R/2br1nQ1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 g5 h4 gxh4 a5 f5 exf5 b6 a6 Qc7 Bd3 Nh6 Bf1 Qb7 axb7 Ng8 Ke2 e5 Kf3 d5 Kg4 a5 b4 d3 f4 d4 c4 h6 b5 d2 c5 h3 Rh2 d3 Ba3 e4 Ne2 a4 Nc1 e3 Nc3 e2 Ne4 Nc6 b8N Bb7 f6 e1B Kf5 Bf2 Ke6 Ne5 g4 Ng6 g5 Nh4 f5 h5 g6 Rh6 g7 Rg6 Qg4 d1Q Qg1 d2 Nd3 Qb1 Nb2 Nh6 g8R d1N Rg7 Ne3 Rd7 Bc6 Rd5 Nhg4 Be2 Qc2 Re1 Bh6 Nd6+ Kf8 Bd3 Bb7 Kd7 Nf1 f7 Bc1 Re6 Qb1 Na6 Rb8 Nc7 Re8 Na8 Qc2 Rf6 Re1 Re6 Rd1 Be4 Qc3 Bf3 Qa5 Be4 Qa6 Bg2 Kg7 f8B+ Kg8 Be7 Kg7 Bf6+ Kf8 Bc3 Bc6+ Kc7 Bb7 f6 Bc6 Bab4 a3 f7 a2 Ba3 a1B Be4 Bb7 Bf5 Bc6 Rf6 Bb7 Bc8 Bc6 Re6 Bb7 Rg2 h2 Kd7 h1Q Rh2 Qe4 Ree5 Kg7 f8N Kg8 Re6 Qb1 Rde5 Bf3 Rd5 Qf5 Kc7 Qc2 Nd7 Qb1 Nb8 Kf8 Kd7 Qe4 Na4 Bab2 Bf6 Be5 Nb2 Beg3 Bc3 Be5 Re7 Qf5+ Re6 Qf7+ Kc6 Qg8 Kd7 Qh7+
b1R1B1n1/N1RN1q1p/1n2NrrP/3bqP2/1K6/R2BB1p1/1k2r1Qr/4n1N1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 h4 Kf7 e4 Kf6 b4 d5 c4 a5 b6 g5 b5 a4 h5 g4 h6 a3 c5 d3 Kc3 d4+ Kb3 g3 b7 a2 c6 d2 c7 d3 b6 Be6+ Kb4 Bd5 c8N Nd7 b8R Ra6 b7 Qe8 Rh5 Nb6 Na7 Qe5 Qb3 d1B Re8 d2 Be2 f1Q b8N f2 Bd3 Bf3 Nc3 d1R Qc2 Rd2 Rc8 Ba8 Ncb5 Re2 Rb1 a1N Be3 Ra2 Nc7 Bh1 Qd2 Bd5 Ne6 Nc2+ Kc5 Ne1 Rb3 Rc2+ Kb4 Ba8 Rh4 Qc3+ Ka3 Ne7 Nbc6 Rg8 Re8 Rg6 Rc8 Ng8 Ned8 Rb2 Qc2 Rd2 Nb8 Qc7 Kb4 Ra2 Ra3 Bf3 Rh5 Qg7 Rhc5 Qe2 R5c7 f1R Bf2 Qf7 Bc5 Bg2 Bf2 Qh5 Be3 Rdf2 Qd2 Bf3 Qe2 Rh2 Qg2 Raf2 Rc2 Re2 e5+ Ke7 e6 Kf6 e7 Bfd5 e8B Rf3 Bc4 Kf5 Nd7 Ke4 Ne6 Qe5 Bb3 Kd3 R2c7 Rff2 Bc4+ Kc2 Bb5+ Kb2 Bd3 Rc2 f5 Rc6 Nf4 Rcf6 Ne6 Re2
1B2rrK1/4R1P1/2p1bpB1/BN6/NnnN3B/1nq3n1/1q1Pb1R1/2R1Q1bk w - - 0 1 illegal: No possible last move, all moves rejected
3Kb1n1/B5pn/1b1B1P2/p2k2P1/NnNBr3/bQ1r2qb/1R5R/2N1q1RB w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Qd6 Bd3 Qh6 Bf1 Qxh2 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 g4 c6 b4 e6 b6 e3 f5 h4 g5 h3 b7 e2 b5 e1B b6 Rh5 f6 Bh4 Na3 Nd7 b8R Bg3 b7 Nb6 Bb2 Nd7 Bg2 c5+ Ke4 c4 d4 e5 Kf5 e4 Qb3 e3 Ne2 c3 Rag1 c2 Nc1 e2 Nc4+ Kc7 Ke6 e1Q+ Be4 Rh4 Kf7 Be7 Ke8 Bgd6 Bg2 Qhg3 Rh2 Bb4 Bh1 Re4 d6+ Kc6 d5+ Kc5 Ba3 Nf8 d7 Nh7 d6 Kd5 d8B Bc5 d7 Ra6 Bc7 Rd6 Bb2 Ba3 d8B Rd7 Bd4 Bec5+ Bce5 Rd6 Bc7 Bd7+ Kd8 Be8+ Kc8 Rd7 Bb6 Rd6 Ba7 Rd7 Ne2 c1N Bd6 Na2 Nc1 Nb4 Qb1 Re7 Kd8 Rc7 Qb3 Re7 Rb2 h2 Rc8 Re5 b8N Rf5 Rc6 Rf3 Nd7 Rd3 Ndb6+ Ke6 Bg2 h1B Na4 Kd5 Bf3 Bg2 Rb6 Bh3 Rh2 Qe5 Bh1 Q5g3 Qc3 Na2 Rbb2 Nb4 Qb3 Bb6+
1B4Rq/3B1pB1/2r1q1Rn/k1pNn3/3Q1P2/Kbq3N1/P1BRn1N1/3rb1n1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 gxh5 Bb4 Bd2 Bd6 Bc1 Bf8 h4 b5 e4 d5 e6 c5 h6 g5 e7 Kd7 e8R Kc6 h5 Kb6 e5 b4 h7 c2 Kd2 g4 e6 b3 Kc3 g3 Kb2 g2 e7 d4 h6 d3 Rh2 d2 Ne2 g1N Nbc3 Ra6 Ng3 Bg7 Bd3 Ka5 Ka3 b2 Nd5 b1Q f4 Bd7 Bb2 c1N Be5 Rc6 Bc2 Qbb6 Rb1 Qa6 Rb6 Be6 Bc7 Nd7 Bb8 Nce2 Rg2 Ngf6 Rg8 Ne5 e8B Nfg4 Bd7 Qe8 Qa1 d1Q Qd4 Qc1+ Rb2 Bf6 Rg6 Rg8 h8B Bh4 h7 Nh6 Bg7 Qd2 h8N Qc3+ Bb3 Qec8 Rc2 Rd8 Rd2 Qcc4 Bc2 Qa8 Nf5 Be1 Ng3 Qc8a6 Rg5 Qc8 Ng6 Qaa6 Nh4 Qd3+ Nc3 Bb3 Nd5 Qc3 Rg6 Qac4 Rh2 Q4a6 Ng2 Qa8 Rh4 Qaa6 Rhg4 Qac4 Bdf5 Rdd6 Bd7 Qh8 Bf8 Qa6 Rg8 Qc8 R4g6 Qe8 Bg7 Qe6 Be8 Rd8 Bd7 Rdc8 Ne7 Rd6 Qb4+ Ka6 Rd1 Rd2 Nd5 Rc6 Qd4 Ka5 Bb1 Rb2 Bc2 Rb1 Rd2 Rd1
rR1K2n1/2N1P3/nr1Q3p/R4P2/BN6/2kr1B2/qp3bRN/2BnqBnb w - - 0 1 illegal: No proof kernel
nKBq1rRN/r3pBp1/b1Q1b3/q6b/8/2RNP2n/P4bN1/RB2Nn1k w - - 0 1 illegal: No proof kernel forced: wxDB
6B1/1NPRqBRr/2N4P/b2N3R/k2r3Q/qpp1nK1n/5q2/r1Bb1r1B w - - 0 1 illegal: No possible last move
2k1BR1N/1np5/1nK3r1/B1B1RPN1/4Qpb1/n3BP1q/rb1qN3/R5rn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 Nh3 gxh4 Ng1 f4 Ra4 Qd5 Ra1 Qf5 exf5 Kd7 Bd3 Kd8 Bf1 Ke8 Ke2 Kd8 Kf3 e5 Ke4 h5 Kd5 a5 d4 e4 b4 h3 g4 h4 b6 a4 f3 c3 b5 a3 g5 h2 g6 h3 g7 a2 b7 c2 b6 e3 Nc3 e2 Bd2 e1R Nce2 c1Q Ba5 Rh6 Qd3 Nd7 b8B Nc5 b7 Nf6+ Kc6 Qd2 g8R Rg6 d5 Nfd7+ d6 Nb6 Ba7 Be6 b8B Bf7 Qe4 Nb7 Rh8 Kc8 Rg8 Nd7 Bc5 Nb6 Ba7 Rd1 Nc3 Re1 Bb5 Rc1 Nge2 Rcg1 Re1 a1N Be3 Nc2 Ra1 Na4 Bac5 Na3 Rh8 Nb6 Ba4 R1g4 Rhe1 h1Q Bb5 h2 Rg8 Rg7 Ba4 Rg1 d7+ Kb8 d8N Bh5 Nf7 Kc8 Nh8 Bg4 Qb1 Qg2 Ne4 h1N Ng5 Qh3 Qe4 Ra6 Bb3 Ra8 Bf7 Ra6 Be8 Rg6+ Ne6 Bg7 Rf8 Bf6 Ng5 Nc2 Bc3 Ra2 Ba5 Na3 Red1 Qc1 Rd5 Qe1 Re5 Qd2 Re7 Bb2+ Re6 Rg7 Re5 Rg6+
BQ2bB2/1pKP3q/2q1qbkp/1PR1r3/NB3R2/1B4n1/N4b1r/q1N1nR2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 Ke2 Kf7 Ke3 c5 Ke4 e5 f4 h6 d4 h3 a4 b3 g4 c4 a5 h2 f6 c3 d6 b2 Kd5 c2 f5 e4 a6 e3 a7 e2 d7 e1B g5 Bc3 Ne2 Qe7 d8N+ Ke8 g6 Qf7+ Ne6 Qg7 f7+ Ke7 Nc5 Kf6 Bd2 c1Q Na4 Qe1 Nc1 Qh7 g7 Nc6 Bc4 Nge7+ Kd6 Qe6+ Kc7 Nb4 g8Q Nd3 d5 Bd7 d6 Be8 d7 Ne1 Rf1 h1Q Bb3 Bd4 Qg3 Bg7 f8B Bf2 Nbc3 b1Q N3a2 Kf7 f6 Nf5 Qf4 Kg6 f7 Ng3 Bdb4 Bf6 Qd6 Rg8 Qe5 Rb8 a8B Qb2 Rb1 Qa1 Rb2 Rg7 Rc2 Rd8 Rc5 Qe4 Qd6 Q4d5 Kb6 Qc6+ Ka7 Ne2 Bd1 B6h4 Nb3 Kf6 Nd2 Rg2 Qb8 Qc4 Bg7+ Kg6 f8R Ng3 Nb3 Bf7 Nbc1 Re8 Bc2+ Re4 Bb3 Be8 Rf4 Bf6 Bf8 Q4d5 Qd8 Re6 Kb8 Re5 Qc8 Qce6 Kc7 Rh2 Qb8 Qdc6+
Q1B3n1/P1q4N/1q1pK2R/1rR4N/1r1rbN2/P1B1b1n1/kB1p2nR/3n3N w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 h4 gxh4 d4 cxd4 Ke2 Kf7 Kf3 h5 Ke4 b5 Ke5 b4 g4 b3 c4 b2 f4 h3 f6 h4 a3 d3 g5 d2 f5 h2 a6 h3 a7 Na6 c5 Nc7 c6 Rh5 Ra2 Nd5 c7 Bh6 Nc3 b1R Ne4 Bb7 c8R Ne3 Rc5 Rb4 Ba6 Qb6 Nf2 Rd8 Qf3 Be4 Ne2 Nd1 Bc8 e6 Re1 h1Q Bb2 h2 Nf4 Qf1 Nh1 Qfa6 Re3 Qab7 Rd3 Q7c7+ Rd6 Bc2 Qa8 Be4 Ng3 h1N g6+ Kf8 f7 Ke7 f8N Rg5 Nf1 Ng3 g7 Kf7 Nh7 Rh5 Ng6 Be3 Nf4 Bd3 Bb7 Nh6 g8N Bf2 Bd4 Ne4 Ngf6 Ng8 Ra1 Nb2 Rc3 Bc2 Re1 Nd1 Ng3 Ke7 Nh1 Ng3 Ne2 Bg1 Kf4 e5+ Kg4 e4 Bc8 e3 Nf4 Kf7 Re2 Be4 Rh2 Bf2 Rcc6 Bg1 Bc3 e2 Ne6 e1N Nf4 Ng2 Rc4 Qb5 Rdc6 Be3 Bb2 Rh6 N6h5 Qbb7 Ra6 Rhb6 Rc5 R6b5 Rh6 Qbb6 Kg5 Ke7 f6+ Kd6 Kg4 Bb1 f7+ Bg6 Rc3 Ke5 f8B Kd4 Bd6 Be4 Rc1+ Nc3 Be7 Kc4 Bf6 Kb3 Bh8 Nd1 Rc5 Ka2 Bhc3 Rf8 Kg5 Rf6 Kg4 Rd6 Kg5 Rdd4 Kg4 d6 Kg5 Ne7 Kf6 Ng8+ Ke6 Bf3 Ba6 Bc6 Bc8 Be4
6KN/P1n1N3/B1rp1k2/1bb1R1q1/N1RP1rR1/p3N2b/rBB1q3/nQ5r w - - 0 1 illegal: No proof kernel
6B1/BK3bRN/2nP1pb1/1Qr2B2/1nq1b1b1/1kpr2NB/1NR1P3/1bR1b3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 a4 Kc4 d4 h5 g4 c5 d6 b5 g6 f3 d7 f2 g5 f6 d5 h4 a5 b3 d6 b2 a6 b4 a7 b3 g7 h3 g6 h2 Qd3+ Kb4 Kd5 c4 Nd2 b1B Ne4 b2 Nf3 c3 Be3 Rh4 Ng3 Rh3 Ra2 Nc6 Ng5 Kb3 Nh7 Qc7 d8N Bg4 Ne6 Rc8 a8B Nge7+ Kc5 Nd5 g8B Bc2 g7 b1B Qb5+ Ndb4 Nf4+ Qf7 Kb6 Qc4 Kb7 Bg6 Rg1 h1B Ba7 Bd5 Rc2 Bdf7 Bg2 f1B Nd3 Bge6 Nb2 Bg4 Be4 Bg2 Bf5 B2f3 Rgc1 Be4 Nh5 Rd3 Ng3 Be8 Bge6 Bgf7 g8R Bh6 Rg7 Bg6 Bg8 Bd2 Kb6 Be1 Bb7 Rd8 Bbc8 Bef7 Kb7 Re8 Bcd7 Re5 Bc8 Rc5 Bcd7 B4h5 Bh3 Bhf3 Bdf5 Bg4
k1Nq4/1Nn5/B1np1Rb1/2bKb1Rr/2pRr3/B1P1b1P1/Nb1BBQ2/3b4 w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 f5 Kd2 fxg4 Ke1 b5 axb5 g3 Kd2 g5 Ra2 g2 Na3 g4 Ra1 g3 Nb1 Qh4 Nf3 g1B Ke1 g2 Na3 Qf4 Nb1 Qg3 hxg3 Bb7 Be3 Ba6 Bc1 Bc8 Kd2 Kd8 Kd3 a5 Ke4 h5 b4 c5 b6 a4 b5 d3 b7 Kc7 b6+ Kc6 Nh4 a3 f4 a2 f5 d2 f6 c4 f7 Bb4 f8R Bc3 Ba3 Bf2 Nf5 g1B Rh4 Bf6 Nc3 Ra7 Nd6 Rh6 Qe1 Be5 Rf6 Na6 b8B d1B b7 Bb6 Qf2 Bbd4 e3 Rh7 Be2 Ne7 Rb1 a1B Rb5 Bb2 Na2 Ra8 c3 Bc5 Ba7 Kc7 b8N Nc6 Nb7 d6 Kd5 Bf5 e4 Bg6 Nd7 Re8 Nb6 Rh6 Rhf4 h4 Nc8 h3 Bb6+ Kb8 Rh4 Bb4 Be3 h2 Bd2 h1Q Rhf4 Qh4 Rc5 Bd4 e5 Ka8 e6 Be5 e7 Rh5 Rb5 Bc5 Rd4 Qh3 Ra5 Qd7 Rb5 Qd8 Ra5 Reh8 e8B Rh4 Bd7 R8h5 Be8 Na7 Bb5 Re4 Qe1 Be3 Qf2 Nb8 Ba6 Nb5 Qf3 Nc6 Qf5 Qe8 Qf2 Qd8 Ke6 Bb6 Rd5 B5f4+ Re5 Nba7 Rd5 Nb5 Rd4 Ba7 Kd5 Bc5 Ref5 Be5 Rg5 Nc7+
5K2/1nN3N1/Bkn1bb1R/pBrnR3/1N3Pp1/3q2Pb/b4rRn/3RB2Q w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g3 b5 axb5 f5 exf5 h4 Qf3 h3 Qg2 hxg2 Kd2 e5 Kd3 a5 Ke4 g5 Kd5 d6 b4 Kd7 h4 Kc7 f4 e4 c4 e3 h5 g4 c5 e2 f6 e1N b6+ Kb7 h6 d3 f7 d2 b5 d1B h7 Qd7 Nc3 Qe8 Na2 Ba4 Nb4 Nd3 Bd2 Ne5 Rd1 Qd8 Rh6 Bg7 f8R Na6 Be1 Bf6 Nf3 g1N Ng5 Ngf3 Ne6 Nh2 Ng7 Nc6 Re8 Bb3+ Bc4 Bf5 Re5 Bb1 Ke6 d5 Kf7 Nge7 Bd3 d4+ Bc4 Re8 h8Q d3 Qh7 d2 Qe4 Qb8 Qh1 Nd5 Bf1 B1a2 Bd3 Kc8 b7+ Kc7 Bc4 Qc8 b8N Qf5 b6+ Kb7 Bb5 Qd3 Rb1 Re7+ Kf8 d1B Ra1 Bf3 Rd1 Kc8 b7+ Kc7 Ra1 Bg2 Rd1 Nd8 c6 Kb6 c7 Nc5 c8B Nc6 N8a6 Bh3 b8R+ Nb7 Nc7 Bc4 Rf5 Re2 Re5 Rg2 Ba6 Rf2 Bd7 Bcb3 Rbe8 Rc8 Re2 Ncd8 Bdb5 Bc4 R8e5 Bcb3 Nce6 Rc5 Nc7 Nc6 Rc2 Ne3 Re2 Be6 Rb2 Nd5 Rc2 Rf3 Rg2 Rf2
2n4B/2nB1NBr/3p1K2/bNnb4/P1R1R2n/r1prB2q/k1PRN2Q/4r3 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 f5 exf5 e5 dxe5 axb4 Kd2 Ke7 Kd3 h5 Ke4 c5 g4 b5 f4 h3 e6 b3 Ke5 c4 a3 b4 g5 h4 g6 b2 g7 c3 Qd5 h2 Qg2 h3 Qg6 b3 Bg2 Bb7 Bf3 Qc8 Qg2 Bd5 Be3 Rh7 Ra2 Na6 Ne2 Nc5 Rd1 h1R Qh2 Re1 Rd2 Ra4 Bh1 Rd4 a4 Rd3 Na3 b1R Nb5 Ra1 Rb2 Ra3 Rb1 b2 f6+ Kd8 f7 Ne7 Rbd1 b1N g8N d6+ Kf6 Qd7 f5 Nc8 Kg6 Be7 f8B Ke8 f6 Bd8 e7 Ba5 Kg5 Kf7 Nh6+ Ke6 Nf4+ Ke5 Bg7 Qe6 Bh8 Qd7 Qf2 h2 Ne2 Qh3 f7+ Ke6 Bf3 h1N f8B Ng3 Qh2 Nf5 Bfg7 Nh4 e8R+ Kd7 Bg2 Kc6 Nf7 Ra2 Bf3 Na6 Rc1 Na3 Rb1 Ra1 Nbd4+ Kc5 Bg4 Nb5 Kf6 Nbc7 Bd7 Kc4 Re4 Nc5 Rc1 Kb4 Rb1+ Ka3 Rb4 Ra2 Rc4 Kb2 Nb5 Ra3 Bgh6 Ka1 B6g7 Ka2
BB3N2/2Rb2bp/2pRP1Q1/K7/3Nrr1B/NnRPnqn1/b2n1N2/4k2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 b4 Kd6 g4 Ke5 g5 Kd4 b6 f5 g6 a5 b7 a4 e5 h3 e6 a3 g7 a2 d6 f3 d7 f4 b5 h2 b6 Nf6 g8R Ng4 Na3 Qf6 d8N Na6 b8B Bd7 b7 Nc5 Bg2 Kd3 Nc6 Nb3 Nd4 Ra4 Rg7 Ne3 Nh3 Qf5 Rb1 a1N Rb2 Rc4 Rc2 Rb4 Rf1 h1B Re7 Bg7 Rc3+ Ke4 Qe2 Rf8 Qb5 Qg4 Qg5 Rf5 Qg6 Qh5 Rc6 Kd3 Rd6 Qg4 Qe8 Re5 Qg6+ Re4 Bb2 Nec2+ Kd1 f2+ Bf3 Ra4 Rg1 f1N Rg3 Qf5 Bg2+ f3 Bc3 Na5 Kc1 Qg4 Kb2 Nce3 Rf7 Nac4+ Ka2 Nac2 Kb3 f2 Rgf3 Ng3 Bb4 Ra6 Bc3 Na1+ Kb4 Rc6 Ka4 f1B Bb4 Nb6+ Ka5 Rc4 R7f5 Rf4 Rfd5+ Nf5 Nc6+ Ke2 Rc5 Ned5 Ba7 Be8 b8N Rcd4 Rd3 Nde3 Nd7 Kd1 Rb3 Bc4 Nf8 Bd7 d3 Qg3 Be4 Qf3 Be1 Bd5 Rbc3 Ba2 Bd5 Rde4 Bh4 Ng3 Nd4 Ke1 Bb8 Nbc4+ Kb4 Nb6 Nf2 Nbc4 Ba8 Nd2 Ka5 c6 Rb5 Nd1 Rb7 Ne3 Rc7 Nab3+
B2rb2r/1rb2PPB/1N3N2/B3b3/bp1R1r2/N1nRKR2/Q2qN2p/2nk4 w - - 0 1 illegal: No possible last move, all moves rejected
2r1QrR1/1qkNp3/2Nbr1N1/1R1BRbb1/2B2r2/1P1P4/b2K2pB/2N1nn2 w - - 0 1 illegal: No proof kernel
bqN3n1/2pb1n1P/K1NBB3/r2RnR1b/N2p3P/1k1r1B1n/2R2b2/1N4Q1 w - - 0 1 illegal: No proof kernel
1kq4b/2n3nK/rpP3N1/2Q1B1r1/1P1Np2R/7n/BR1B1rqn/N1nN3R w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 g5 h4 gxh4 a5 f5 exf5 b6 a6 Bb7 axb7 Qc7 Nc3 Qc8 Nb1 Qd8 Ke2 d5 Kd3 Kd7 b4 Kc7 c4 e5 f4 a5 g4 h5 f6 h3 f5 a4 c5 e4+ Kd2 h4 g5 a3 c6 d3 Ke3 d2 Kf4 a2 f7 d4 f6 d3 Kf5 h2 Kg6 h3 Qb3 d1R Nd2 Bg7 f8R Na6 f7 Nh6 Qc3 Nf5 Ngf3 Kb8 Nd4 Rg8 Rb1 a1N Qc5 Nb3 Rb2 Qc8 Kh7 Nc7 g6 Bh8 g7 Ra6 Rd8 Re1 f8N Re2 Ng6 Rf2 Rf8 Nh6 Rf4 Ng4 Nb1 d2 Na3 d1N Nac2 Nde3 Bc4 Nf5 Bd2 Nc1 Na1 Ra4 Ba2 Ra6 Rd1 h1Q Rg1 Nge3 Rh4 h2 Rd1 Qg2 Rh1 Rd8 g8N Ng4 N8e7 Rg8 Nd5 Ng7 Rf1 h1N Nc3 Nh2 Nd1 Rf5 Rg1 Nf2 Rf1 Nh3 Rh1 Ka7 b8B+ Ka8 Ne2 Rgf8 Nd4 Rg5 Qe7 Rf2 Qc5 Nce6 Bg3 Nc7 Be5 Kb8
k1N3K1/P1p1b2R/2q1p3/qrqQB3/qqB5/1nPB3N/4bRBb/1n2NR2 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 a5 Qh5 axb4 Qg4 Ra3 Qd1 Ra8 h4 b5 g4 Bb7 g6 Qd3 h5 Ba6 g5 Bc8 g7 Ra6 Qe2 Rg6 hxg6 Qd5 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb7 Ke5 h5 d4 f5 a4 h4 d5 e3 d6 f4 d7 f3 Ke6 f2 Kf7 h3 a5 h2 c3 e2 a6+ Ka8 a7 e1B Ra5 b3 Bh3 f1Q+ Nf3 b4 Qc2 b2 Rf5 b3 Nbd2 b1Q Qd3 b2 Ng1 Qf4 Ndf3 Qa4 Bg2 Qba2+ Qd5+ Nc6 Nh3 b1Q Bf4 Rh5 Be5 Qbb4 Rf1 Bg3 Ne1 h1Q R5f2 Nf6 g8B Ba6 g7 Bh2 g6 Ne4 Bh7 Nd2 g8B Be2 g7 Nb1 Bd3 Qdb8 d8N Q8b5 Nb7 Na5 Nd6+ Qc6 Nc8 Nb3 Bc4 e6 Bh7 Q2a3 g8R Be7 Bhd3 Qg1 Rg7 Qaa5 Kg8 Q3a4 Rf4 Qgc5 Rh7 Rh4 R4f2 Rd4 Qf3 Rd5 Qe4 Qe3 Qd4 Rb5 Qd5 Qec5
q3n1r1/2p1pQB1/1R1NKB2/5b2/PNNbnR2/q6q/RBqqP2k/1B3b2 w - - 0 1 illegal: No possible last move, all moves rejected
N2bK1k1/QRnr1pp1/2r2P2/2RbNqN1/2R2q2/1B6/P2b2br/1N2B1qB w - - 0 1 legal: proof: e4 a5 d4 h5 g4 c5 gxh5 d5 b4 axb4 Qd3 Na6 Qd1 Nc7 Nc3 cxd4 Nb1 d3 Be2 d4 Bf1 Nd5 exd5 Ra4 Bh3 Ra6 Bf1 Ra8 Kd2 e5 h4 b5 f4 b3 c4 b2 d6 b4 f5 e4 f6 b3 h6 Ra6 c5 Ra3 h7 Bf5 h5 Qa8 d7+ Kd8 h6 Be6 c6 Bd5 Rh4 Be7 Nf3 Qa6 Bg2 Qc8 Ng5 Ra5 Bh1 Rc5 Qg1 Qb8 Qe3 Qf4 Rh5 Kc7 d8N Kd6 c7 Rc6 Nde6 Kd7 c8B+ Ke8 Ba6 Bd8 Bc4 Ne7 Nc7+ Kf8 Na8 Qb8 Ke1 d2+ Ke2 d1R Bd2 Qf4 Be1 Rd3 Qg1 e3 Rh4 Bg2 Rg4 Nd5 Rh4 Rg8 h8R Nc7 h7 Rd1 Nd2 Bd5 Kd3 e2 Rc1 b1Q+ Rc2 b2 Bb3 Qa1 Rc5 Bg2 Kc4 b1Q Qe3 Qbf5 Nb1 d3+ Qd4 d2 Rg4 Ne8 Kb5 Bd5 Qa4 Qad4 Qa7 Qg1 Rg3 Bg2 Rc3 Bd5 R3c4 Nc7+ Ka5 Rc1 Kb4 d1B Ka4 Rd6 Ka5 Rd7 Kb6 Be6 Kb7 Bd5+ Kc8 Bc2 Rb4 Bce4 Rb7 Bg2 Rc4 Ke8 Rc5 Rf8 Rg8 Rc3 h8N Rh3 Ng6 Rh2 Rh8 Rg8 Ne5 Kf8 Rh4 Rh8 Rh3 Kg8 Rhc3 R8h3 R3c4 Rc3 Bh4 e1B Bg3 Bd2 Be1 Ne6 Rb6 Rd6 Rb7 Rc6+ Kd7 Rc7+ Ke8 Rd7 Re4 Rc2 Rcc7 Rc6 Rc4 Ra6 R7c5 Rad6 Nh7 Rc6 Ng5 Nc7+
2B1Nn2/2K1R1Pk/QnB2r2/bqRp1r1q/3P2NR/n4B2/1rpq4/4BNr1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 b5 c4 e5 b4 exf4 Rh3 Ba6 Rh5 axb4 Rh1 b3 Na3 b4 Nb1 Bb5 cxb5 Ra5 Nc3 Ra6 Nb1 Ra8 Kf2 f5 Kf3 Kf7 g4 Kg6 e4 d5 d4 c5 a4 h5 b6 b2 b7 h4 a5 c4 e5 h3 a6 b3 a7 h2 e6 c3 e7 c2 e8N Rh6 Bg2 Qe7 Qf1 Kh7 Nd2 b1R Ra5 b2 Rc5 Nf6 Qa6 Nbd7 b8R Ra1 Nf1 b1N Rb7 Nb6 Bd2 Rb8 a8B Nfd7 Be1 Rf6 Nh3 Na3 Nf2 Bh6 Rbc7 Nf8 Bc6 Qg7 Re7 Rb7 Ke2 f3+ Ke3 Rc1 Kf4 Qf7 Ke5 f4 Nd3 f2 Bf3 Rf5+ Kd6 Rd1 Ng7 Qh5 Ne5 Rb8 Kc7 Ra1 Rg1 h1Q Rg2 Rf6 Rh2 Qg2 Rh4 Rf5 Ng3 f1Q g6+ Kg8 g5 Qb5 Ng4 Qd2 Nf1 Rd1 Bg2 f3 Ne8 f2 g7 Kh7 Bf3 Rb1 Ng3 f1R g8B+ Kh8 g6 Rb2 Ne4 Rg1 Be6 Rd8 g7+ Kh7 Bc8 Rd6 Ng3 Rdf6 Nf1 Bg5 Bg3 Be3 Re6 Bf2 Re7 Be1 Bf2 Qdh6 Bg3 Ba5 Be1 Qd2
KN4r1/qp5B/1P1P2q1/4RBBq/pb1N1RQr/2Rrn1n1/1N5R/4nqk1 w - - 0 1 illegal: No possible last move, all moves rejected
qBB4R/p2rK3/2N1P1Q1/1p1BbRrb/1Pq5/1Nq4k/2b4b/N1rRn2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 a5 exf4 Kf2 Nd7 Ke1 Nb6 axb6 Bg7 Nh3 Bh6 Ng1 Bf8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 h5 d4 c5 e4+ f3 d6 f5 d5 h3 d7 c4 Ke6 c3 g3 c2 b7 f4 b8R h2 e5 h4 d6 h3 Ra3 Rh7 Qe1 f2 Qe3 f3 Ne2 Ne7 Ra6 Ng6 Qd3 Bg7 Na3 Qh8 Bf4 c1B Nd4 Nh4 Nac2 Ng2 Nb3 Ne1 Nca1 Bd2 Bg2 f1R Ke7 f2 d8R Bf5 d7 Bg6 Qd6 Bc2 Bd5 Rh5 Qf6 Rg5 Qg6 Rg1 Rc6 f1Q Rf6 Qc4 Rf5 Rf1 Bb7 Be3 Bc8 Bg1 Rb6 Rb8 Rd6 Rb7 Rd1 Rc7 e6 Rb7 Bb8 Bb2 Rg8 Qhc3 Rh8 Rc7 Kf8 Rb7 d8N Rd7 Nc6 Bc1 Qg7 Bf4 Qf6 Bd4 Qg6 Bde5 Ke8 Kf3 g4 Kf2 Rg1 h1B Kf8 Bg2 Rh1 Kg3 Ke8 h2 Kf8 Rh5 g5 Bf3 Ke8 Kh3 Kf8 Rd8+ Ke7 Be2 Qg7 Rd5 g6 Rh7 Qf7 Bh5 g7 Rc5 g8B Rg7 Rg1 h1Q Bh7 Bh2 Bg6 Qhe4 Rh1 Rd5 Bh7 Rg5 Qg6 Rd7+ Kf8 Kh4 Qg7 Bc7 Rd6 Rg4 Rf7 Ba5 Ncd4 Qa8 Be4 Nf3 Qg6 Rc1 Rf5 Rg5 Nc6 Kh3 Rdd1 Bc7 Bd5 Be5 Ke8 Ne1 Kf8 Rd8+ Ke7 Rd7+
1q1BrR2/3Q1nq1/2N2RbN/qk1p4/NP2Bb1R/q2P1B2/K2n3p/n1b3N1 w - - 0 1 legal: proof: b4 a5 h4 b5 f4 c5 a4 e5 axb5 Ra6 h5 Rd6 b6 exf4 h6 Rd4 b5 Rb4 c3 gxh6 cxb4 h5 Rh3 h4 Rh2 Qg5 Rh1 Qd8 e4 d5 g4 Kd7 b7 f5 e5 h5 d3 f3 Kd2 h3 Kc3 h4 Kb3 c4+ Kb2 h2 g5 h3 g6 f2 b6 Kc6 g7 a4 e6 a3+ Ka2 c3 e7 c2 e8R f4 Qg4 f3 Be2 f1N Qg2 f2 Bd1 Kb5 Kb3 a2 Bf3 Bd6 Bf4 c1B Rf8 Bf5 Qg4 Nc6 b8N Bg6 b7 Nh6 g8B Nf7 Nd7 Qa5 Bg5 Bdf4 Bh7 Rg8 b8N Nd2+ Kc2 f1Q Bd8 Qe1 Nf6 Rh8 Ng8 Nd4+ Kc3 Qe7 Nh6 Nc2 Nc6 Qb7 Qd7 Qb8 Ne2 Rg8 Rf1 h1Q Ng1 Qg2 Rf2 Nc4 Kb3 h2 Nc3+ Ka6 Rb1 a1Q Na4 Qc3+ Ka2 Kb5 Rb2 Na1 Rbe2 Nd2 Re4 Be3 Rh4 Bf4 Re2 Qg5 Re6 Qgf6 Rd6 Qg7 Rf6 Ne5 R8f7 Re8 Rf8 Nf7 Ng4 Bh5 Bhe4 Bg6 Nh6 Qa3#
2RN2b1/1Q1Bbb1r/3r4/1p1Rbqb1/4RpBP/B2N4/1P2KBrk/nr2N3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 d5 cxd5 e5 a5 exf4 Na3 Nd7 Nb1 Nb6 axb6 Qd7 Nh3 Qd6 Ng1 Qd8 d4 Ke7 h4 Kd6 e4 f5 b7 a5 b8R c5 Rb7 g5 Nh3 f3 Kf2 c4 Qd3 c3 Rg7 a4 Nd2 g3+ Ke1 f2+ Kd1 g4 Ra3 c2+ Ke2 g2 Qe3 g1R Ng5 g3 Rh7 g2 Ngf3 Ra6 Rc3 a3 Ne1 a2 Ndf3 a1R Re7 Nf6 Ne5 Be6 N5d3 Rh7 Qf3 Bg8 Be3 c1B Rc8 Ng4 Re8 Rb1 e5+ Kd7 e6+ Kd6 e7 Qd7 Red8 Bg7 e8B Be5 Bh6 Bg5 Bf8+ Be7 Bh5 Ne3 Bg4 Nc2 Qe4 f4 Rh3 Bf6 Re3 Bg5 Qf3 Na1 Re5 Rh1 Re4 g1B Bfh3 Rh2 Ra8 Kc7 d6+ Kc6 Rac8+ Kd5 Qg2 Qf5 d7 Rd6 Qf3 Bef6 Be7 Be5 Qh1 Rb6 Ba3 Rd6 Qf3 Ke6 d5+ Kf6 Rf8+ Kg6 d8B Rg2 Bb6 Bf7 Rfd8 Bg8 Kd2 f1B+ Bf2 Be2 Rd7 Bd1 Rdd8 Bb3 Ke2 Qf8 Bd7 Qf5 Qe3 Kh5 Qa7 Qf8 Bhe6 Qf5 Qa6 Kg4 Qb7 Rb6 d6 Kh3 Rb4 Kh2 Re4 Qf6 Bg4 Qf5 Rc5 Rc6 Rc8 Bbf7 Rd5 Rb6 Be8 Rc6 d7 Rd6 d8N Rg3 Bb6 Bc5 Bd7 Bb4 Bf2 Rg2 Rc7 Rc6 Rc8 Bbe7 Rc5 Re6 Rd5 Rd6
K5RB/Nr2b2p/QNbq1qrP/1P3Bbp/3k3q/2N3Nn/q3R3/1B3b1R w - - 0 1 illegal: No proof kernel
1b2B3/R1q4K/B1n1R1Q1/1P2RrNp/1r1N3P/1R2p3/q1bBNbk1/b1r3r1 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nc6 f5 Nb4 g5 Nd5 Ne2 Qc7 Ng1 Ndf6 gxf6 Qd8 Ke2 Kf7 c4 a5 b4 g5 h4 d5 c5 e5 b6 h5 b5 g4 c6 g3 b7 g2 b8N e3 Kf3 e4+ Kf4 a4 Kg5 a3 c7 a2 Qf3 e2 Bb2 e1B Qh3 d3 Ne2 g1R+ Qg2 d4 Bc1 e3 Bd2 Ne7 Nc6 Ra4 Nbc3 Rb4 Ne4 Bf2 Qg3 Bd7 c8B Qc7 Ba6 Be8 Rb1 a1B Bh3 Bg7 Bg4 Rf8 Rb3 Bh8 Kh6 Bd7 Bc1 d2 Kh7 d1Q Bd2 d3 Ncd4 Qb1 Bf3 Qa2 Ng5+ Ke8 Qd6 Nc6 f7+ Kd8 Qg3 Be5 f6 Be6 Be4 Kd7 Bg6 Kd6 Qg4 Kd5 Qf5 Rg2 Rc1 Rg1 Rc5+ Kd6 Qg4 Bf4 Re5 Bf5 Re6+ Kd5 Qg3 Qb6 Qg4 Bb8 Qg3 Rg8 f8R Qc7+ Rf7 Rf8 Rg7 Be4 f7 Bf5 Bc1 d2 Qg4 d1R Bd2 Rc1 Qg3 Rd8 f8R Bc2 Rfe8 Rd7 Qg4 Rf7 R8e7 Rf5 Be8 Qc8 Ra7 Qb7 Rge7 Qc7 Ngf3 Ne5 Qg6 Ke4 Nc3+ Kf4 Ng5 Nc6 Re5 Kg3 Nce2+ Kg2 Re6 Qd6 Re5 Qd8 R7e6 Qc7+
6bR/7K/bbq2pBN/1r1kbB1R/P3p1Qq/4P3/NR3q2/n1BNq1Rr w - - 0 1 legal: proof: c4 g5 f4 gxf4 h4 d5 cxd5 a5 g4 Kd7 b4 axb4 g5 Ke8 h5 Nd7 Bb2 Ne5 Bc1 Ng6 hxg6 Ra5 Rh2 Ra4 Rh1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 b5 a4 e5 d4 c5 e3 h5 g7 b3 g6 h4 Rh3 c4 Qd2 b4 Rf3 h3 Be2 b2 Ra3 b3 Qd1 h2 Rf2 h1Q+ Rg2 f3 Ra1 f2 Bg4 f1Q Nh3 c3 Bf5 c2 Qg4 Rb8 Nf2 Ne7 g8B Nc6 g7 Nb4 Bgh7 Ba6 g8N Qdh4 Bhg6 f6 Nh6 Rb5 Nc3 b1Q Nfd1 Qff2 Na2 Qhe1 Rh2 b2 Rg2 Be7 Rh2 Bd8 Rg2 Kc7 d6+ Kc6 d7 Bb6 d5+ Kd6 d8R+ Kc5 Bd2 Qc1 d6 b1B d7 Rh7 Rh8 Kd6 Nac3 Ba2 d8R+ Kc5 Rb8 Bg8 Na2 Kd6 Qf4 Kc5 Rg5 Kc6 Rh5 Kc5 Bd7 Kc4 Kf5+ Kd5 Rb1 e4 Bc8 Nd3 Rb7 Nc5 Rg7 Nb3 Rb2 Na1 Qf3 Qb1 Bc1 Qc3 Be8 Qc6 Kg6+ Kc4 Bf5 Kd5 Bd2 c1B Qg4 Qh3 Rb4 Bb2 Bc1 Be5 Rb2 Be6 Bf7 Qhh4 Be8 Qbc2 Bf7 Q2c3 Rgg8 Qce1 Be8 Rc7 Bf7 Rc8 Kh7 Re8 B7g6 Ra8 Rf8 Bg8+ Kg7 Ra7+ Bf7+ Kd6 Qf3 Rb4 Ng4 Qh3 Rg5 Bh7 Rfg8 Qhg3 Kh6 Rb3 Be8 Rg7 Rh5 Rb5 Qf4 Rg5 Rg7 Bg8 Rg6 Bf7 Kh7 Qh4 Nh6 Rg1 Rg4 Rh1 Rg1 Kd5 Qg4 Be6 Beg6 Bg8+
q1q2RNQ/1b1pBq2/B5r1/4N3/1R2pRPn/2nNPn2/K1n2r1q/2N2B1k w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 f5 Bd2 fxg4 Bc1 b5 axb5 g3 Kd2 g5 Nc3 g2 Rb1 g4 Ke1 g3 Ra1 Bg7 Nb1 Be5 Nf3 g1N Ra4 g2 Ra1 Bg3 hxg3 Kf7 Ne5+ Kf8 Nf3 Ke8 Kd2 Kf7 b4 Ke6 c4 Kf5 Kc2 Ke4 Kb2 h5 c5 e5 c6 a5 e3 a4 c7 a3+ Ka2 h4 b6 h3 b5 h2 b7 d3 g4 d2 b6 Ne7 Ne1 Rh3 f4 Nbc6 b8N Rf3 f5 Rf2 b7 Nd4 f6 Ndf5 f7 Nf3 f8R g1Q Nc6 Ra6 b8N N5h4 Nd3 Bb7 c8B Nd5 Ne7 Rg6 Ng8 Qe8 Qb3 d1Q+ Qb2 Qc2 Nc6 Qf7 Bd2 Qg2 Bb4 Qc3 Rg1 h1Q Be7 Qgh2 Rg3 Ne1 Rg2 Kf3 Rg1 Q1g2 Nd2+ Kg3 Rh1 Nef3 Nb3 e4 Nbc1 Qc5 Kb3 a2 Rb1 a1N+ Ka2 Nc2 Qh8 Qc3 Rb4 Qgh3 Be2 Kg2 Rf1 Qb8 Nce5 Qh2 Rd1 Qcc7 Bf1+ Kh1 Re1 Ba8 Ba6 Bb7 Re2 Qa8 Re1 Rd2 Re2 Qcc8 Rg2 Re2 Rg3 Rf2 Rh3 Ng2 Rh5 Ngh4 Rf5 Qc3 Rf6 Qcc8 Rf4 Nc3+
q1r1r1N1/1RR2nRq/rP4pB/2p2q2/2P1bQ2/q4B2/B1NRKr1b/2N3k1 w - - 0 1 legal: proof: g4 b5 e4 d5 a4 dxe4 axb5 g6 g5 Nd7 h4 Nc5 h5 Ne6 h6 Ng7 hxg7 f6 Be2 fxg5 Bf1 g4 d4 Kf7 f4 Ke6 c4 Kf5 b4 h5 b6 c5 d5 e5 d6 a5 b7 h4 b8N g3 b5 g2 d7 e3 b6 Ke4 f5 e2 f6 a4 f7 h3 Ra3 h2 Qd6 Nh6 g8B Ra6 Qf6 Bd6 f8R Nf7 Kd2 e1R Nc6 Bb7 Ne7 Qa8 Ra1 a3 d8R a2 Ne2 g1Q Na3 Qf2 Nc2 Qf5 Rb8 Kf3 Rfc8 Kf2 Rc7 Bd5 Rbb7 e4 Rg1 h1Q Rg2+ Kf3 Qg5 Qh7 Rh2 Bc6 Bg2+ Kf2 Bf3+ Kf1 Qf4 Be5 Ke3 Rd1 Rg2 Rd8 Rh2 Rc8 Kd2 e3+ Kd1 Ng5 Bgd5 Nf7 Bde4 Rhe8 Ng8 Bd6 Bd3 Be4 Bd2 Be5 Nc1+ Kg1 Ke2 Bd6 Rb1 a1Q Rb2 Qa3 Rh3 Qg7 Rh7 Qh6 Rg7 Qh7 Na1 Be5 Bb1 Bd6 Nc2 Be5 Ke1 e2 Ba2 Bd6 Qh4 Be5 Bh6 Bh2 Kd2 e1R Qf4 Rf1 Ke2 Qd7 Nd4 Qd5 Rd2 Qf5 Nc2 Rf2+
1kNbBKq1/5b2/1rq1R1r1/1rp2bbp/P3BR1n/1N1r3P/R1R4B/3Q3N w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 Nc6 Bf1 Nce7 Nc3 exf4 Nb1 f3 Bg2 f4 Bf1 Nf5 gxf5 Qd6 Qa4+ Qd7 Qd1 Qd8 Kf2 Kd7 d4 b5 e4 c5 a4 Kc7 h3 h5 d6+ Kb8 d5 g5 d7 b3 d6 b2 e5 b4 e6 g4 f6 b3 f7 Qc7 d8N Rh6 d7 Ra6 e7 Rab6 e8B Qc6 Ra3 Be7 f8R Rg6 Rh2 Nh6 Ne2 Nf5 Nd2 b1R Nf7 b2 d8R Nh4 Rd6 Bd8 Ng3 Bf5 Bd3 Rb5 Nh1 g3+ Kg1 g2 Kf2 Rb6 Be4 Rb5 Re6 g1B+ Ke1 f2+ Ke2 f1R Kd3 f3 Kc4 f2 Ra2 Re1 Nd6 Re3 Nb3 Rd3 Bf4 f1B Rc2 Be3 Bh2 Beg5 Nc8+ Rd6+ Qd3 Rd1 Qe2 Rd3 Qd1 b1Q Rff6 Qa1 Rf7 Qh8 Rf8 Qh7 Rf7 Qc7 Rf8 Rdb6 Rf7 Rg3+ Kd5 Qc6+ Ke5 Rd3 Rf8 Bg4 Rf4 Bf5 Rf6 Rf3 Rd6 Bc4 Rf6 Qa8 Rd6 Bf7 Re6 Rb7 Kd6 R7b6+ Kd7 Bg8+ Bf7 Rd3+ Ke8 Qb7 Kf8 Qc6 Be8 Bf7 Ra1 Re3 Ra3 Rd3 Raa2 Qg8#
2Br1b2/br3R1n/2NRN1RN/2n3K1/r2pp1Q1/3P4/r1P2n2/Bn1b1kNB w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a3 gxh4 e5 Qa5 bxc5 b4 e6 Qb5 a4 fxe6 axb5 e5 Qg4 e4 Qh5+ Kd8 Qd1 Ke8 Ke2 e3 Kf3 Bh6 Kg4 Kf7 f4 Kg6 g3 e5 c6 d5+ Kf3 Kf5 d3 a5 b6 a4 c7 b3 b7 e2 Bg2 e1B Ke3 h3 Bd2 h2 Kf3 e4+ Ke3 a3 Nc3 a2 Nf3 Kg4 Ne2 b2 Bc3 b1N Nfg1 Nd7 b8N Bg7 f5 h5 f6 h4 f7 h3 f8R Ngf6 Bd4 Ba5 Be5 Nc5 Bb2 Bd7 c8B Bb6 Be5 Ra5 Bd4 Ba7 Nf4+ Kg5 g4 Kh4 g5 Kg3 g6 Bg4 Ne6 Ra3 Rf7 Rd8 Re7 Bf8 g7 Ra6 g8N Bh5 Nf3 Bg4 Rg1 h1N Rc7 h2 Qe2 Nf2 Bc3 h1R Rd7 Rb6 Rf7 Na3 Nh6 Rb7 Rab1 a1R Rb6 Bh5 Rd6 Bg4 Nc6 Bh5 Nfg5 Kh2 Kf4 d4 Bf3 Bg4 Rg3 Rhc1 Bg2 Kg1 Qf3 Rd1 Bh1+ Kf1 Nh3 Rdb1 Rg2 R1b2 Ng1 Nb1 Rg3 Bh5 Rg6 Ra4 Kg5 Rba2 Ba1 Bg4 Qf5 Bd1 Qg4 Nh7+
2N1bRrb/2B1R3/kN1b1P2/n2pnB2/2r1q1PQ/Rp1p4/2rn3K/N2R1B2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 b5 g4 d5 a4 Kd7 f4 Kc7 Kf2 Kb7 Kg2 h5 c5 e5 f6 h4 g6 b3 f5 d3 a5 e4 g7 b2 c6+ Ka6 c7 b4 f7 b3 Nd2 b1N Nc4 h3+ Kh2 e3 Nf3 e2 Nd4 e1B Nb6 Qe8 Bf4 Nd2 Ra3 Bd6 f8R Nc6 Nc2 Nf6 g8B Qe4 Be6 Nd7 Na1 Rg8 Bg3 Bf2 Qe1 Nde5 Rf7 Bd4 Re7 Bd7 c8N Bb2 Bf4 Ra7 Qh4 Be8 Bg3 Rc7 Bf4 Kb5 a6 Na5 a7 Rc4 a8R Bd4 Rb8 Ka6 Bg3 Nc6 Rg1 Bh8 f6 Ne5 Bf5 Nef3+ Kh1 h2 Kg2 h1R Bf4 Bb4 Bc7 Rh3 Rh1 Ne5+ Kg1 Re3 Kh2 Bd6 Bg2 Rf3 Rd1 Rc2 Bf1 Rf4 Na7 Bb5 Rf8 Be8 Nac8 Qf3 Qe1 Rfc4 Qh4 Qe4
nr6/1rR1N1BR/3pbKn1/pn1QB1p1/2b2N1R/P6B/Bb1P4/q2rk2N w - - 0 1 legal: proof: f4 c5 g4 h5 b4 hxg4 bxc5 f5 e4 e5 exf5 exf4 Kf2 Kf7 c4 Kf6 h4 Ke5 a3 Ke4 h5 a5 f6 b5 f7 g5 h6 f3 Kg3 f2 c6 b4 h7 d6 c7 b3 c5 b2 c6 Qe7 Qb3 Qe6 Bh3 f1B Nc3+ Kd3 Qd5+ Kc2 Nge2 b1N Nd1 Qf6 Bb2 Bg7 f8B Na6 Nf4 Rb8 Be5 Rb7 Nf2 Be6 c8B Bc4 c7 Nc3 Rh2 Nb5 Nh1 Ne7 Rc1+ Kb3 Bd7 Ng6 c8N Nac7 Ne7 Na8 Be8 Rg8 Bf7 Bh8 Bg7 Rgb8 Kf2 g3+ Kf3 g2 Ke4 g1R Rc3+ Kb2 Bg8 Ba2 Rc5+ Kb1 Rc7 Bc4 Bf7 Kc1 Bg8 Qf8 Bf7 Kd1 Bg8 Bf7 Kf5 Ke1 Kf6 Qd8 Bg4 Qc8 Rh4 Be6 Bh3 Be2 Rd7 Qc3 Rc7 Qa1 Qe4 Bc8 Ba2 Be6 Qd5 Bc4 Bd4 Bd7 Kf7 Qc3 Bf8 Qa1 Bf6 Bg7 h8R Kd1 R8h7 Bg4 Bc3 Bd4 Bg7 Bf6 Bb4 Bb2 Bbc3 Be6+ Kf6 Re1 Nd3 Ke2 Be5 Rd1 Nf4+ Ke1
1B1r2b1/NR4p1/1n1PRnQN/2kN1p2/R2b2b1/1rq2N1p/B2P3B/Kr2n3 w - - 0 1 illegal: No proof kernel
q2b3B/NQ1R2n1/B4knN/1rp4P/R2Rq1bq/1r2p1NN/pP3r2/2B3K1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 h4 Kf7 d4 e5 f4 a5 Kf2 g5 h5 c5 d6 g3+ Kg2 g4 d5 a4 d7 a3 f5 Nh6 b6 Nc6 f6 Ne7 b7 Ng6 b8R Ra5 d6 Be7 Rb7 Nf5 Rb4 Rf8 Ba6 Rb5 Nc3 Qe8 Kf1 g2+ Kf2 Ke6 f7 Ng7 Nh3 g1R Qf3 Rg3 Ne2 Bg5 Qg2 Rb3 Rd1 g3+ Kf1 Kf5 d8N Qc6 d7 Qa8 Nc6 Bf6 d8N a2 Bf4 Be6 Ra4 Bd7 Na7 Bh4 Nb7 Bd8 Nd6+ Ke6 Be3 Ke7 Qf3 Bg4 Nf5+ Ke6 Nh6 g2+ Kf2 Ke7 Rd3 Ke6 Rad1 Ke7 Rd7+ Ke6 Ng3 g1Q+ Ke2 Qh2+ Kf1 Qh1+ Ng1 Qh4 Bc1 e3 Re1 e4 Nh3 e2+ Kg1 Ba5 Red1 Bd8 R1d4 e1Q+ Nf1 Qe2 Ng3 e3 Qg2 Qd3 Qb7 Re8 Nc8 Qe4 Na7 Nf5 f8B Ke5 Be7 Rf8 Bf6+ Ke6 Bh8 Ng7 Rd1 Rf2 R1d4 Kf6
B2b2b1/KRq4N/1N1nk1N1/PpBr1Nq1/1b2n2p/r2R4/2R1p1P1/1Q3B1n w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 b5 Kd4 h5 Kc5 e5+ d6 c6 f4 b3 a4 b2 d4 e3 f5 e2 f6 e1B d5 h4 f7 e4 g6 e3 g7 Rh5 Ne2 Nh6 g8B Re5 Ng3 Rh5 Na3 b1N Nf5 Nd2 Nc4 Be7 Ba3 Qa5 Qb1 Bd8 Ra2 e2 Rh3 Bb7 Rc2 Qc7 Rd3 Ng4 Bh7 Nf2 f8N+ Kc8 Ng6 Kd7 Bb4 Nh1 Bg8 Ke8 Bh7 Kf7 Nb6 Nc4 d7 Bc8 d6 Na6+ Kd4 Bd2 Bc5 Bb4 Bg8+ Kf6 Bd5 Rg5 Bf3 Ke6 Be4 Be7 d8R Bb7 d7 Nd6 Rb8 Bd8 Nd5 Bc8 Rb7 Rh5 Bb6 Nc5 Bf3 Rg5 Ba7 Nce4 Nb6 Rg3 a5 c5+ Ke3 c4 Kd4 Kf6 Kd5 c3 Kd4 Be7 d8N Be6 Nf7 Bd8 Ng5 Bg8 Nh7+ Ke6 Nd5 Rh3 Bc5 Ra6 Nb6 Ra7 Ra2 c2 Rb2 c1Q Ra2 Qg5 Rc2 Kf7 Kd5 Qce7 Kc6 Ke6 Rb8 Rd7 Rb7 Rg3 Ra7 Nc3 Rd5 Nf7 Rc7 Qd6+ Kb7 Qe5 Ka6 Rh3 Ra7 Qc7 Rd4 Rd6 Ba8 Rd5 Rb7 Ne4 Ka7 Ra3 Rd3 Nfd6
Qqrk1rb1/5nK1/NR1B1P2/5p2/r1N2N2/2RnpPbp/R1q2B2/1n2B1B1 w - - 0 1 illegal: No proof kernel
n2kNK1r/r1r1N2Q/3p2bp/1N1RRB2/P1nPBBqN/3b2q1/p5b1/1R6 w - - 0 1 illegal: No possible last move
1b4N1/1QqR1b2/Np2rP2/1p1n3k/2BK3B/2P2nRp/1rR1B1B1/2qbNq2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 g5 h4 f5 hxg5 a6 b5 axb5 exf5 Qc7 Bf4 Qb6 Bc1 Qd8 Kd2 Kf7 Kd3 e5 g4 d5 f4 h5 a4 h4 g6+ Kf6 a5 b6 c3 h3 g7 Ba3 g5+ Kf7 g6+ Kf6 a6 Nd7 a7 Bc5 Be2 Rh4 Na3 Qc7 Rh2 Rh6 Nf3 Bd6 Qh1 Ne7 g8N+ Kg7 Ne1 e4+ Kd2 e3+ Kd3 Bb7 Nac2 Bc8 Nb4 Ne5+ Kc2 Bb7 Na6 Nf3 Kd3 Bc8 Bd2 Be6 Rd1 Bf7 Rg2 Re8 a8B Be5 Rg3 Rf8 Bf1 e2 Be3 Rd8 Bf2 Rd6 Rd2 Rh4 Rc2 Re6 Rg1 Rg4 Bh4 Rg2 Bc6 Rh2 Rg3 Rf2 Ng2 e1Q Be2 Qf1 Ne1 Qa7 Qg2 Bb8 Qh1 Qc7 f6+ Kh8 g7+ Kh7 Bg5 Kg6 f5+ Kh5 Bh4 Bg6 f7 Rg2 f8R Bf7 f6 Rh2 Rb2 Rf2 Rd8 Rh2 Kc2 d3+ Kb3 d4 Rd7 d2 Kc2 d1B+ Kd3 Nd5 Rc2 Rd6 Ne7 Rf2 g8B Rg2 Ke4 d3 Ba8 d2 Bb7 Be8 Be6 Bf7 Ng8 Ne7 B6c4 Nd5 Qg1 Rh2 Qc5 Rg2 Qc6 Re6+ Kd3 Rf2 Ba8 Rh2 Qb7 Ne7 Rc1 Bb3 Qe4 d1Q+ Ke3 Bc2 Bed3 Ng5 Kd4 Ba4 Qd5 Rb2 Bc6 Qd2 Qg2 Bd1 Rc2 Qc1 Ba8 Qc8 Qc6 Qd8 Qc7 Qc8 Bg2 Nd5 Qb7 Qc7 Be2+ Nf3+
N1Br1N2/br2N1R1/p4nR1/1k1n3P/3pR1B1/P2r2B1/2n1K1pq/b3q1NQ w - - 0 1 legal: proof: d4 e5 e4 exd4 g4 h5 b4 c5 bxc5 b6 e5 Bb7 f3 Be4 fxe4 hxg4 c4 d5 h4 Kd7 a3 Kc6 e6 f5 e7 g5 e8R d3 e5 a6 e6 b5 h5 d2+ Ke2 g3 e7 g2 Ke3 b4 Qe1 d1N+ Kd3 g4 Ra2 g3 Be2 b3 Bf4 b2 Bg4 Nf6 Ke2 Bg7 Nc3 b1R Na4 Rb7 Nb6 Qd6 Nd7 Ne3 Nf8 Nc2 Rb2 Nbd7 Rb6+ Kc7 c6 Rd8 Be5 f4 c5 f3+ Kd1 f2 Ke2 Kb8 c7+ Ka7 c8B Qb8 Rd6 Nb6 c6 Rg8 c7 f1Q+ Kd2 Bh8 Qb1 Qc1+ Ke2 Rg5 Re6 Rf5 Rh4 Rf3 Bf4 Rd3 Rh3 Nh7 Rg6 Ba1 Rh2 Nf6 Rh4 Rd6 Rd8 Rd7 e8N Rh7 Bh3 Bd4 Nf3 g1B Bce6 g2 c8N+ Ka8 Rd7 Ba1 Bh2 Bc5 Re4 d4 Bhg4 Nbd5 Bf4 Qe5 Nc7+ Kb8 Bef5 Ba7 Na8 Rf7 Rc7 Rd7 Be6 Rd6 Rcg7 Rd8 Ne7 Qd6 Bc8 Qg1 Nb6 Kc7 Qc1 Qh2 Qh1 Qh4 Ng1 Qg3 Ng8+ Kc6 Ne7+ Kb5 Na8 Qh2 Be5 Qb4 Bg3 Qe1+
rR1B4/3Kq3/p2p4/1QB4P/BPqnn3/rR1RN1bR/1b2p1b1/1krN1N2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 g5 h4 a6 c4 d3 b4 g3 h5 g2 f6 d2 f7 g4 f5 g3 b6 Nh6 b7 Qe8 f6 Rg8 Ra3 Rg4 Rb3 Nc6 b8R Ng8 Nh3 Bg7 f8R g1R f7 e5 Kd6 g2 c5 Nf6 Bb5 Bb7 Qf1 Rg3 Ba4 Nd4 c6 d1Q c7 Qg4 c8N Qe7+ Kc7 Qge6 Rd8 Rf3 Qb5 Qc4+ Qc5 Bh8 Bg5 Rc1 f8B g1B Nb6 Bh2 Nd5 Bg3 Ne3 Bc6 Qb5 Bg7 Rb2 Kd3 Nd2 Ne4 Nf2+ Kc3 Rh3 Bh8 Neg4 Bf6 Rb3+ Kc2 Nf1 Re3 Rc3+ Kb1 Nd1 Rd3 Nge3 Bh8 Rc2 Ra3 Bf6 Nd6 Rc3 e4 Ng4 e3 Rb3+ Ka1 Bh4 e2 Nge3 Ne4+ Kc8 Qg7 Bc5 Qe7 Rf8 d6 Rf3 Nf5 Rd3 Bb2 Bf6 Nd4 Rb3 Qe5 Bd8 Kb1 Kc7 Bd5 Kd7 Qe7+ Kc8 Be1 Ng4 Bg3 Rfd3 Nf6 Nge3 Be4 Ng4 Bg2 Nge3 Qf8 Kc7 Ne4 Kd7 Qe7+
N1BR4/6pk/2nQPRNb/1R1bP1p1/1prR2Nr/4q1BK/1q2r2B/1bn5 w - - 0 1 illegal: No possible last move, all moves rejected
4N1K1/5p1n/3rr2B/RpPNQ1p1/r1b2R1q/kn3R1B/N1P4b/q1nB3B w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 axb4 Kd2 Ke7 Kd3 b5 Ke4 d5+ Ke5 b3 h4 d4 a4 f3 e4 f2 a5 b2 a6 g6 h6 d3 a7 d2 h7 Qa5 h5 Nh6 Ne2 Kd7 Kf6 Kc6 e5 Ba6 e6 Rg8 h8N Kd5 e7 Kc4 e8B Kb4 Nd4 Nf5 h6 Ng7 h7 Bd6 Rh4 Nf5 Qh5 d1R Ne6+ Nd4 Bd7 Qa4 Nc3 b1Q Rf4 Bc8 Ng7 Re8 Bfh3 f1N Bdg4 Be6 Qe5 Bc4 Ra3 Re7 Ne8 Ne2 Kg7 Re6 Kg8 Nd2 Bh5 Nb3 Na2+ Ka5 Rf3 Qa1 Bh6 g5 Ng6 Nd7 h8R Nf8 Nf4 Nh7 Nd5 Nec1 Rf4 Rd4 Bd1 Rd8 a8B Bb8 Nf6 R8d6 Bh1 Re4 Nc3 Kb4 Rf3 Qa8 Ra5 Qa4 Rf4 Ka3 Na2 Red4 Rf3 Qe4 Nd5 Qh4 Bg7 Nf8 Rh6 Nh7 Rhf6 Bc7 Bh6 Re4 Ra8 Qa6 R6f4 Qa5 Rc8 Qc3 Rd8 Qa1 Ra8+ Ra6 Rf6 Bf1 Qc3 Bh2 Qe5 Rea4 R6f4 Rad6 Ra5 Bc4
1q2rB1r/1qN1p1QR/Bk6/1b1Bq3/np1RrpPP/N3R3/1b1n1N2/2K4N w - - 0 1 illegal: No proof kernel
2rk4/1B1p1qb1/1P1NqNn1/1bbN1K2/n1rR1pn1/4B1R1/2P1pRQR/6B1 w - - 0 1 illegal: No proof kernel
bq6/2pKR1R1/1r1NNk2/N2b1B2/PQ1rP1pb/6p1/4Nq1r/B1nR1n1B w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Ke7 Kg3 f5 Kf4 b5 a4 g6 d4 b3 e4 b4 h4 g3 e6 b2 Ke5 b3 h5 g5 d6+ Ke8 h6 f4 h7 f3 d5 g4 e7 Kf7 e8B+ Kg7 d7 f2 Ke6 Nf6 d6 Ra6 Nd2 b1B Qe1 b2 Bg2 f1R Nc4 Be7 Na5 Bb7 Bg6 Nd5 Qb4 Qf8 d8R Ba8 Rd7 Ne3 Ne2 Rb6 Bf5 Na6 Rh2 Rg1 Bh1 Nf1 Bf4 Bd3 Rd1 b1Q Bd2 Qb8 Be1 Rd8 h8N Qc2 Nf7 Bh4 Re7 Rg2 Bd2 Qc5 Bc3+ Qd4 Rh3 Rh2 Bb2 Bb5 Ba1 Bbc6 d7 Qb2 Qb3 Nb4 Nd6+ Kf8 Rg7 Na2 Qb4 Nc1 Re7 Qd4 Rg7 Qf2 Re7 Rc8 d8N Bd5+ Kd7 Kg8 Ne6 Rf8 Bg6 Rf3 Bf5 Rd3 Nd8 Rd4 Ne6 Bf6 Rh6 Bh4 Rg6+ Kh8 Re8+ Kh7 Rgg8+ Kh6 Re7 Kh5 Ng7+ Kg5 Ne6+ Kf6 Rg6+ Ke5 Rgg7 Kf6
1r2k2K/rp3Np1/Pb1R4/B1bB1Q2/2Nrn2q/1Rb3Pp/3N2B1/1Nn1R1q1 w - - 0 1 illegal: No proof kernel
1N1n2b1/kpP2q1N/1pbNQ3/q1Br4/4pRB1/6BR/2rbnKP1/Rn4R1 w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 b4 cxd4 h4 Nc6 hxg5 Nb8 b5 Kf7 b6 axb6 Rh4 Ke8 Rh6 Ra5 Rh1 Ra8 a4 e5 f4 h5 c4 d5 c5 Kd7 g6 Kc7 f6 e4 a5 h4 g7 d3 f5 d4 a6 d2+ Kf2 d3 f7 h3 a7 h2 c6 Nh6 g8N Qe8 f6 Bb4 f8B Bd7 f7 Nf5 Be2 Ng3 Nf3 Rh5 Nd4 Rd5 Qb3 d1B Bg4 d2 Na3 Ne2 Rg1 h1Q Nc4 Qh5 Bc5 Qg5 f8R Qf7+ Nf6 Be6 Qf3 Ba4 Nd6 Ba5 Qh3 d1N+ Kf1 Ndc3 Kf2 Nb1 Bf4 Bd2 Nh7 Qfh5 Be5 Bg8 Bg3 Qhg6 Rf4 Qf7 Ra3 Qe5 N4f5 Qc3 Nd4 Qa5 Rb3 Na6 Rd3 Rc8 a8R Nb4 Ra6 Kb8 Qh6 Rc7 Qe6 Qb5 Ra5 Qa6 Ra3 Ka7 Re3 Bb5 Ra1 Qa5 Rd3 Rd7 c7 Nc6 Rb3 Nd8 Nc6+ Ka8 Nb4 Ka7 Na6 Bc6 Rba3 Rd4 Nb8 Rc4 Bh2 Rc2 Rh3 Rc1 Bg3 Rc2 Ne8 Rd4 Nd6 Rd5
4Kn1b/1knB4/np4P1/B4BRn/1Nr1b1p1/2p1Pq1N/nR1N4/1rQ3NR w - - 0 1 illegal: No proof kernel
4rnBK/3B1Pr1/rr2B3/3R1Rq1/NN2QR1p/1k1r2pN/p3bbPN/2n5 w - - 0 1 illegal: No proof kernel
RN6/1BB1P3/1rRB1rnr/1pbq3N/rpNb1p2/1R3P1K/QnB4r/5k2 w - - 0 1 legal: proof: d4 g5 c4 e5 dxe5 b6 h4 gxh4 c5 Bb7 c6 a5 b4 axb4 cxb7 Qg5 Qd4 Qe7 Qd1 Qd8 a4 Ke7 e4 Ke6 g4 d5 f3 f5 Kf2 h5 Kg2 c5 g5 b5 a5 c4 a6 d4 a7 c3 g6 h3+ Kh2 h4 g7 f4 Na3 d3 Ne2 c2 Rb1 d2 Rb3 Na6 b8B Nc5 Bd6 Nd3 Ng3 Nb2 Qe2 d1R Be3 c1B Bb6 Rh6 Nh5 Rf6 Bbc7 Ne7 g8R Ng6 Nc4 Be3 Qc2 Rc1 Bd3 Bd4 Qe2 Ra1 Rc1 Rb8 a8B Rb6 Bc2 Ra4 Bb7 Qd7 Rh8 Qc6 Rg8 Qd5 Qd2 Be7 Ra8 Bf8 Na5 Be7 Nc6 Bf8 Nb8 Be7 Kh1 h2 Kg2 Bf8 Kh3 h1R+ Kg4 h3 Qg2 h2 Kh3 Re1 Qf2 Re2 Qg2 h1R+ Qh2 Kf7 e6+ Ke8 e7 Kf7 e8N Ke6 e5 Be7 Rd3 Kf5 e6 Kg5 Rb3 Rd2 Be5 Bec5 e7 Re2 Nd6 Rg2 Nc4 Re2 Bed6 Ree6 Be5 Red6 Kg2 Rde6 Qg1 Kh4 Bed6 Rh3 Ra1 Rh1 Qb1 Rh3 Qa2 Rh2+ Kf1 Kh3 Rc1 Re3 Kg1 Ree6+ Re3 Rf7 Na5 Ne5 Be4 Rh6 Kf1 Rff6 Rb3 Ng6 Rcc3 Ra6 Bc2 Bb6 Rc6 Bbc5 Nc4 Rb6 Ng7 Rf2+ Kg1 Re2+ Kh1 Kg3+ Nh5+ Kf2 Kh2 Kf1+ Kh3 Rh2+
2R4B/3b2NN/k1B1n2b/1n2pp1b/1QNB1P1K/3n1RnR/1rPpq3/r4B2 w - - 0 1 legal: proof: h4 b5 d4 g5 hxg5 c5 a4 cxd4 e3 dxe3 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 f4 a5 b4 h5 g4 f5 g6 d5 g5 Kd7 b6 Kc6 b5+ Kb7 g7 h4 g6 a4 Rh2 e2 Kf2 e1N Qd2 a3 Nh3 d4 Bb2 d3 Ng5 h3 Kg3 a2 Bd4 Nf6 g8B Na6 g7 Nh5+ Kh4 Nc7 Qb4 d2 Ne6 Bd7 Na3 Nd3 Nc4 Qe8 Rb1 a1N Rb3 Rh6 Rf2 h2 Rf3 h1B Bf7 Ne5 g8N Nd3 Ng7 Ne6 Nf6 Ng3+ Bh5 Ra2 Nh7 Rb2 Ra3 Rg6 Bg4 Nb3 Bh5 Kb8 b7 Kc7 b8B+ Kb7 b6 Rh6 Re3 Bf3 Bbe5 Rf6 Bf7 Bh5 Rf3 Rg6 Ra8 Rf6 Rc8 Ka6 b7 Rh6 b8R Rg6 Bb6 Nbd4 Rb7 Nb5 Bbd4 Nh1 Rbc7 Rg1 Rh3 Ng3 Bf6 Nd8 Bd5 Ne6 Rc5 Rh1 Bc6 Rg1 Be2 Ra1 Bf1 Qd8 Bfe5 Qc7 Bf6 Qe5 Rd5 Qe2 Re5 Ng5 Re3 e5 Rf3 Ne6 Ne8 Qe3 Bh8 Bh6 Ng7 Qe2
1n4Q1/6NK/R1PN2PB/4Rp2/r1bnB2r/3p1NbN/pkB1rq2/2R1nn2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 g4 h5 e4+ d3 b4 a5 e5 d5+ e6 f6 Kg6 a4 e7 f3 e8N f2 b6 f5 b5 h4 b7 a3 b6 h3 Bg2 f1N Nd6+ Kd4 c4 d2 c5 h2 c6 Rh5 Be4 Ra6 Qb3 d1N Nd2 Rh4 Nh3 Nh6 Kh7 Ra4 g6 Nf2 g7 Be6 g8B Nd3 g5 Ne1 g6 Bf7 Qa2 Kc3 Nf3 Ng4+ Bh6 d4 Bc2 Bb3 Bd5 d3 Be4 Bc4 Rg1 h1R Rc1 Na6 b8R Ngh2 b7 Qb6 Ra8 Nb8 Ra6 Qf2 Rg4 Bg7 Rg2 Be5 Rg3 Bb5 Qg8 a2 Rg4 Kb2 Rf4 Nd7 b8N Bc4 Rg4 Bg3 Rf4 Nb6 Nd7 Rg1 Nc5 Rg2 Ne6 Nd7 Ng7 Nb8 Nd2 Nhf3 Rg4 Nd4 Nf3 Be5 Rg3 Rh2 Rg1 Bg3 Rg2 Qe3 Re2 Rf2 Bd5 Qf4 Re5 Re2 Be4 Qd2 Raa5 Qe3 Ra6 Qf2
1q1K1nr1/3n1R2/1nPRpB1B/8/B3pn1N/k1Np1N2/B1P2RQ1/rbb3r1 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 dxc5 gxh4 Kd2 d5 Ke3 Kd7 Kf4 a5 Kf5 h5 f4 d4 b4 a4 g4 a3 g5 a2 b6 h3 b7 h4 g6 h2 g7 h3 b5 Ra7 b6 Nf6 g8B Nd5 Qd2 Ra5 Qg2 Bh6 c6+ Kd6+ Be6 Kc5 Nc3 Kb4 Bb5 Ra3 Ba4 d3 Ke5 Rf8 f5 Rg8 f6 Qe8 Bf7 Be6 Bf4 Qf8 Rf1 a1N Be3 Nb3 Rf2 Na6 b8R Nbc5 Rb7 Nac7 Ra7 Ra1 b7 Nb6 b8B Ba2 Bd2 Bb1 Ba2 Qd8 f7 N7e6 f8N Ka3 Ng6 Nf8 Nf3 e6 Rf7 Qc7+ Kf6 Ncd7+ Ke7 Qc8 Be5 Qb8 Bf6 Bf4 Qg4 Bg5 Rg1 h1R Ngh4 h2 Qh3 Bf4 Rg5 Rg1 Qg2 h1N Rd5 Ng3 Rd6 Nh5 Be3 Bh2 Bh6 Bf4 B2b3 Bc1 Ba2 Qc7 Ke8 Nf4 Ke7 Qb7 Kd8 Qb8+
2R1nr2/3N2p1/1pNb3P/1prRBB1n/R4N1K/2P1bQ1B/b1rN4/2kq1b2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g4 f5 gxh5 a6 b5 axb5 exf5 Rh7 Qg4 Rh6 Qd1 Rh8 f4 Kf7 Kf2 Kf6 Kg3 e5 h4 d5 a4 d3 h6 b6 c3 d2 h7 d4 h5 e4 a5 e3 h6 e2 a6 d3 a7 Be6 Nh3 Nd7 Ra4 Ba2 Kh4 Rc8 a8B Be7 Be4 Bd6 Rg1 Rc6 Rg5 Rc7 Bfg2 Rc5 Qh1 d1R Nd2 Re1 Qf1 Rd1 Qf3 Rh1 Ba3 Rc1 Bb4 Rc2 Bf1 Kf7 f6 Ke6 f7 Ngf6 f8R Ne8 f5+ Ke5 Nf4 Ndf6 Bh3 Nh5 Ba3 Rg8 h8N e1B+ Qg3 Bf2 Nf7+ Kf6 Bc1 Bd4 Qf3 Be3 Ba3 Qd7 Nd8+ Ke5 f6+ Qf5 Rg3 Qd7 f7 Rh8 Bef5 Rg8 Ne4 d2 Rg5 d1B Nd2 Be2 Bb4 Rh8 Rg8 Bd3 f8N Bf1 Nc6+ Kf6 Qg3 Bc7 Nb1 Rd5 Bg6 Nd6 Qg4 Rf5 Nd4 Ke5 Nc6+ Ke4 Qe2 Nc4 Qg4 Qd1 Nd7 Nd6 Rc8 Ne8 Qg3 Rf8 Bd6+ Bd4 Qg4 Ke3 Qg2 Rc5 Rd5 Bb8 Be5 Bd6 Bgf5 Bb8 Na3 Bd6 Qf3+ Kd2 Nc4+ Kc1 Nd2 Be3
2R2nRb/b3P2r/b3r1B1/2N1r1p1/qKB5/QpP1p3/1R1N1BNk/1n3Br1 w - - 0 1 illegal: No proof kernel
1Q2b1RN/1B1PB3/4Rp2/2b1P2R/N1nrrqpn/pkr5/2N1n3/4RnBK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 e4 Kc5 b4+ Kd4 h4 g5 d6 a5 h5 c5 b6 c4 b5 g3 b7 c3 b6 c2 e5 f6 h6 a4 h7 g4 d7 a3 Nc3 Ra7 Rh5 f3+ Kh1 f2 Ba6 f1N Na4 Kd5 d4 Nh6 Nf3 Nf5 Be3 c1R Bg1 Nc6 b8R Na5 b7 Rc3 Qb3+ Nc4 Ne1 Bc5 Nc2 Nh4 Re1 Qc7 d8B Bd7 Qb2 Be8 Be7 Qb6 Rc8 Qb4 b8R Rg8 h8N Rg7 Bf8 Rgd7 Be7 Rac7 Rd8 Re3 Rb6 Re4 Qb3 Qd2 Re6 Qf4 Qb8 Rc8 Bb7+ Rc6 Be3 g2+ Kg1 Na5 Bf2 Kc4 d5 Kb3 d6 Nc4 Rc8 Ng3 Kh2 g1N Be3 N1e2 Bg1 Nf1+ Kh1 Rdc7 d7 Rd6 Rd8 Rd3 Rc8 Rc6 Rd8 Rc3 Rc8 Rd6 Rd8 Rdd4 Rc8 Bf7 Rg8 Be8
Bn6/1b1p1NRb/2R1Q3/P1B2r1r/1pNbP3/5N1r/k1b2p1R/1q1NBn1K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Be3 b3 Kf2 Ke7 Kg2 Ke6 h4 Kd5 a4 Kc4 e6 f5 h6 b5 h7 g5 e7 g4 e8N b2 h5 d3 h6 f4 Nd6+ Kb4 c4 g3 c5 d2 c6 Ne7 c7 Nf5 Rh2 f3+ Kh1 f2 Qe1 Kb3 Bg2 d1B Nc4 Bg7 Nc3 Ra5 Ba8 b1B Nf3 Bb7 c8R Qb6 Rc6 Bd3 Bd2 B1c2 e3 Rf8 h8B Be5 Bg7 Bd4 h7 Rf6 h8N Rh6 Rc1 Rh3 Nf7 Rh5 Nd1 Ka2 Ndb2 Rh3 Qe2 Be4 Rg1 Bed3 Be1 Rh5 Rh3 g2+ Kh2 Ng3 Bf8 Bh7 Nd1 Qd8 Rh4 Qg5 Bd6 b4 Rh3 Rc5 a5 Rf5 Bc5 Qf4 Qd3 Qg5 Qe4 Qh6 Qe6 Qf4 e4 Qc1 Rh1 g1R Rh4 Rf1 Rg1 Qb1 Rg2 Ne2 Rg8 Ng3 Rg7 Rh1+ Kg2 Nf1 Rh3 Nd2 Rh4 Rg1+ Kh2 Rg3 Kh1 Nf1 Rh2 Rgh3
rb4b1/p2RK3/p1b3rB/4N1n1/NbPQ1N1q/R4R1B/Bp4P1/2kB1nn1 w - - 0 1 illegal: No proof kernel
kb3r1R/B1q4N/1P1Q2N1/1Rb4N/3bRrp1/PK1bp1nq/2p5/1BB2n1R w - - 0 1 illegal: No proof kernel
2R2n1Q/5K2/Rp1r1Pp1/3Rb1rB/7N/1N2Nb2/1b1pBNPb/1kq1n1qB w - - 0 1 illegal: Other
1R2N3/b1R5/P1K2n1B/3r2rp/4k1nP/qbnpn1B1/NN4pq/2N1BRQ1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 gxf5 Ra4 Nh3 Ra5 Ng1 Ra8 d4 e6 d6 Ra3 d7+ Ke7 d5 Ra7 d6+ Kf7 Bg2 Ra8 Bd5 exd5 Kd2 Kf6 Kd3 Ke5 a4 h5 e4 c5 h4 b5 a5 g5 a6 b3 f6 b4 f7 d4 Kc4 b2 Kb5 b3 Nd2 b1N Ne2 d3 Rf1 Be7 f8R Qc7 d8N g4 d7 g3 f3 b2 f4+ Kd6 f5 Ke5 f6 c4 f7 g2 Re8 c3 f8B c2 Bh6 Nf6 Ra5 Rg8 Nc6+ Kd6 d8B Nbd7 e5+ Kd5 e6 Ne5 Qe1 Neg4 Nc4 Qh2 Bc7 Nd2 Bg3 b1N Nb4+ Ke4 Nb2 Rg5+ Kc6 Nc3 Rc5 Nc4 Na2 Nce3 Bd2 c1Q Qf2 Rb8 Be1 Rb5 Qg1 Bd6 e7 Be6 Rc8 Bb3 e8N Bb8 Rd8 Ba7 Rb8 Qa1 Nec1 Ra5 Rd5 Rb5 Rd7 Rbf5 Rc7 Rd5 Nb4 Qa5 Nba2 Qa3
2B1qr1K/Rb4P1/pRB2b1n/P5k1/1r6/N4QBp/q1B1p1rN/1r1Rn2N w - - 0 1 legal: proof: e4 c5 c4 f5 h4 g5 hxg5 fxe4 b4 d5 bxc5 dxc4 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 h5 a4 e6 d4 c3 g4 e3 f4 b4 d5 b3 d6 e2 f5+ Kh7 f6 Kg6 f7 e1Q+ Ne2 b2 c6 c2 d7 h4 c7 h3 Na3 b1R Bg2 Rh4 Bf4 c1R Bg3 Rc4 Bc6 Bb4 f8N+ Kf7 g6+ Kg7 g5 Ba5 Nh7 Bb7 c8B Qd2 Nf6 Rhd4 Ng4 Na6 Nh2 Qe8 d8R Nc5 Rd6 Bc3 Qb3 Qa2 Rd1 Bb2 Qc3 Rb4 Qf3 Kh8 g7+ Kh7 g6+ Kh6 a5 a6 Rd7 Kg5 Rf7 Nh6 g8B Bc3 Bh7 Ng8 g7 Rg4+ Kd6 e5 Bc2 e4 Re7 R1b2 Rab1 e3 Rf7 Nd3 Re7 R2b3 Ke6 Ne1 Rb2 Qd8 Kf7 Bf6 Red7 Rb8 Rc7 Ba8 Ra7 Bb7 Nf4 e2 Nd3 Ra8 Nf2 Rb8 Nh1 Ra8 Be5 Rg1 Bg3 Rg2 Rbb1 Rb8 Rd3 Ra8 Rbd1 Rb1+ Rb3 Rc4 Rb6 Rcb4+ Nc4 Qd7+ Kf8 Rb8 Na3 Ra8 Bd5 Nh6 Bc6 Nf7 Kg8 Nh6+ Kh7 Ng8 Kh8 Qe7 Bg4 Rf8 Bgd7 Qe8 Bc8 Nh6+
1n3B2/bKQ1pk1r/1NP1n1N1/2N4r/BR2Rrp1/5rBP/RNqq1p2/1b6 w - - 0 1 illegal: No proof kernel
R1bq2b1/2pqN2k/N3QB1r/Rnr4N/b1P1K3/bp1BNB2/1Pp5/5n1R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 Nh3 f5 exf5 d4 Qb3 b4 Qc3 Qd5 Ng1 Qb5 axb5 dxc3 Ke2 Kf7 Ke3 Kg7 d4 h5 g4 e5 f4 a5 f6+ Kh7 f7 b3 d5 e4 f5 h3 g5 a4 d6 h2 b6 a3 d7 h4 d8R h3 f6 c2 b7 a2 Nc3 Ne7 Nd5 Nbc6 b8N Ra5 Bd3 Na7 Ne2 Nb5 Na6 Nf5+ Kf4 e3 Ng3 e2 Ke4 e1Q+ Ne3 Qe2 Nh5 Ba3 f8Q Qd2 f7 Qd1 Qe7 Qd2 Ng4 Ne3 Qe6 Nf1 Re8 Qd1 Bf4 Qd2 Be5 Qd1 Bf6 Qd2 Rb1 a1Q Ne3 Qa2 Ra1 Qd1 Be2 Qd8 Bf3 Qb1 Ra2 Qbd1 Rg8 Q1d7 g6+ Kh6 g7 Kh7 Rg1 h1B f8N+ Kh6 Ra1 h2 Ng6 Kh7 Ne7 Bg2 Rh1 Bh3 Qe5 Be6 Re8 Bg8 Qe6 Nd4 Ra2 Rc5 Rf8 Bb4 Ra5 Nb5 Rg1 h1B Re8 Bg2 Rh1 Ba3 Rf8 Bf7 g8B+ Kh6 Bh7 Bg8 Kf4 Bh3 Bd3 Bg2 Bd1 Bc6 Bf3 Rh7 N3d5 Rh8 Ke4 Kh7 Re8 Nd4 Rf8 Ba4 Ne3 Nb5 Qe5 Kh6 Qe6 Bb7+ Kf4 Qa8 N7f5+ Kg6 Re8 Rh6 Rd8 Kh7 Rf8 Rc6 Ke4 Qae8 Ne7 Rc5+ Nc6 Qee7 Rd8 Qee8 Ra8 Bc8 Ne7 Qed8
1BR2qN1/pkb2P1N/2q1p3/2b1R1n1/2r3rB/R2R1npQ/B1b1PbK1/3N4 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Qg3 hxg3 d4 Kd7 h4 g5 f4 c5 b4 Kc7 h5 g2 Kf2 c4 b6+ Kb7 b5 c3 d6 e6 h6 c2 h7 Nh6 f5 Nd7 d5 Nb8 f6 Ng8 f7 Qd7 Ra3 Nc6 Nh3 g1B+ Kg2 g3 Nc3 g4 Bg5 c1Q Nd1 Qe3 Bh4 Qd2 Ng5 Qc7 d7 Bg7 d8R Bd7 d6 Bc5 Rc8 Nd4 Rg1 Be8 d7 Nf3 d8R Be5 Rdd3 Nf6 Rh1 Rg8 h8Q Qc3 Nh7 Qd8 Rh3 Rb8 Re3 Bed6 Re5 Bc7 Nb2 Bf2 Rh1 Qc5 Rf5 Ne5 Bg5 Ne4 Nf6 Qcd5 Rg1 Bd6 Qh3 Ka8 Bh4 Qa2 Kh1 Qd5 Bg2 Qd7 Nh7 Qe7 Rd1 Qf8 Rd4 Bc6 Rdd3 Rg7 Bf3 g2+ Kh2 Bfc5 Nd1 g1B+ Kg2 g3 Rh5 Rg4 Rf5 Nc4 Re5 Be8 Rdb3 Ng5 Rd3 Qb7 Bc6 Nd2 Bd5 Ndf3 Ba2 Qd7 Rc6 Rc8 b7+ Kb8 Rc7 Bb4 Rc4 Rc5 Rc2 Kc7 b8N Kb7 Nc6 Bf2 Ne7 Qc8 Ng8 Bc6 Rdd2 Be4 Rc4 Bc2 Rdd3 Rd5 Rcc3 Rdd4 Rc6 Bbc5 b6 Ka8 Rc7 Rc4 b7+ Kb8 Rd7 Qc6 Rd8+ Kc7 b8B+ Kb7 Rc8 Bc7
nNQn4/2pqbR1p/3r2B1/4krR1/1Nq1B1pR/1rqn1P2/RN5P/4K1B1 w - - 0 1 illegal: No possible last move
5Rn1/1r2bQBp/1b3r2/1p4bb/R2KbNBk/3BPRp1/NPr2q2/1B1N4 w - - 0 1 illegal: No proof kernel
q4Rb1/1KpnbB2/1N2B1N1/2krR2Q/1R2R2N/2P1P1Bp/4p1qn/nn3n2 w - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 e4 dxe4 d3 gxh4 Ke2 e3 Ke1 e2 Kd2 Qd6 Rh2 Qd4 Rh1 Qd8 Nh3 e1N Ra2 e5 Qg4 a5 Kc3 e4 Ng1 e3 Qd1 e2 Ra1 Ra6 Ra3 Re6 Ra1 Re3 fxe3 Kd7 Nf3 Ke7 Ng1 Ke8 Kc4 Ke7 Kc5 h5 g4 f5 b4 a4 g5 f4 d4 h3 c3 h2 d5 h4 b6 f3 g6 f2 b7 a3 d6+ Kd7 b5 a2 b6 Bh6 g7 Nf6 g8B Nc6 b8R Na5 b7 Nc4 Bh3+ Ng4 Ba3 f1Q Nf3 Qe7 Nbd2 Bg7 Bf7 Nb6 Nc4 Nc2 Qd5 Rg8 Qh5 Bf6 Ra8 Qd8 b8R Rg6 Ra5 Rg7 Rb1 a1N Rb4 Qg2 Rd1 h1N Rd4 Qe8 Re4 Ng3 Rba8 Ba6 Rc8 Qh8 Rf8 Be7 Rab5 Bb7 Ra5 Bd5 Kb5 Rg8 Ka6 Kc6 d7 Nh2 Bhe6 h3 Nh4 Rg5 Ka7 Na8 Nb6 Ngf1 d8N+ Kd6 Rc5 Bc4 Nc6 Rd5 Kb7 Ba2 Bb2 Na3 Ne5 Nb1 Ba3 Qhg8 Neg6 Bb3 Na4 Nb6 Rcb5 Nd7 Nb6 Rd2 Re5 Rd5 Bc1 Kc5 Bd2 Qh8 Be1 Qf6 Rg4 Qff3 Bg3 Qe4 Rf4 Ba2 Rb3 Qa4 Rbb4 Bc4 Rfe4 Ba2 Rb8 Qa8+ Kc8 Nb3 Bf5 Na1 Bg8 Qa5 Kb7 Bc4 Rf8 Ba2 Bg4 Qa4 Ref5 Re5 Rg5 Bf7 Be6 Rd5 Rge5 Qa5 Nf4 Bg6 Bgf7 Bh7 Nfg6 Bg8 Rb8 Qa3 Rf8 Qa8+
5K2/N2krR1P/B3qRR1/Nq2q3/2b2pp1/B3pP2/1r2r1nQ/1n1BqN1B w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 gxh5 a5 Bh6 axb4 Bf4 Rh7 Bc1 Rh8 e3 d5 Bd2 e6 Bc4 d3 Kf1 d4 Bc1 d2 Kg2 Bc5 Be2 d3 Bf1 Bd4 exd4 Rh6 Kf3 Rh7 Kg2 Rh8 Kg3 b5 Kg4 g5 a4 b3 c4 b4 h4 b2 h6 f5+ Kh5 b3 Kg6 e5 Kg7 e4 a5 e3 c5 f4 d5 g4 h7 Bf5 a6 Bg6 d6 Qc7+ d7+ Kd8 c6 Ne7 a7 Bf5 h5 Rf8 h8R Nd5 h6 Bg6 h7 Qb7 Ne2 Qb5 Rg8 Nc3 Qc2 d1Q Nd4 d2 Be2 Bd3 Rh6 Bc4 Rf6 Qe1 Bd1 Qe5 Nb5 Re8 c7+ Ke7 c8B Nc6 d8N Nd4 Ra3 Nf3 Ba6 Nh4 Nb7 Ng2 Na5 Kd7 Ra2 Rad8 a8B Qe6 Rgf8 Re7+ R8f7 Rb8 Na7 Rd8 Bdf3 d1Q Nd2 b1R Nf1 Qdd6 Bd1 Qde5 Ba3 b2 Be4 Rc8 Bef3 Rc6 Kf8 Rd6 Ba8 Rd2 Be4 Re2 Ra1 Nh4 Bh1 Ng2 f3 Rc1 Qg6 b1Q Qh5 Rcc2 Qh2 Qbb5 Ra2 Nb1 Rb2 Qbc6 Rb6 Rb2 Rg6 Qcb5 Rc6 Q6f5 Rcf6 Qfe6
4B2r/Nk2n1KQ/bbNpB3/p1RP3R/p1Pn2N1/1bBb4/5q1R/1nq4N w - - 0 1 illegal: No proof kernel
r3nqB1/QK1R1rB1/2NN3N/3B2b1/3p2pN/bb3p2/PrRP4/1kr2q1R w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 b3 exf4 Nf3 b4 Ng1 Nc6 Bg2 Na7 Bf1 Nb5 cxb5 a4 Ba3 axb3 Bb2 Ba6 Bc1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 Kd5 Kf5 e4+ Kf6 h4 g5 h6 f3 b6 c4 h5 b2 h7 b3 e5+ Kf5 e6 f6 e7 f2 e8B c3 h6 c2 b7 g4 b8N Be7 Bg2 f1Q Nc3 b1R Bf7 Qf8 Nf3 Rb2 Nc6 d6 Nb5 Be6+ Kd4 d5 Nd6+ Kf4 Kc5 f5 Kb6 Bg5 Nh4 Nf6 Kb7 Ne8 Bg8 d4 Bd5 Bf7 Qe2 Be6 Qa6 Bf7 Qa7 Be6 Nd8 Ke5 Rb1 f4 Ra1 f3 Nc6+ Kf4 Rb1 Kg3 Ra1 Kf2 Rb1 Ke1 Ra1 Rb1 Ba3 Rc1 Rb1 Kd1 Rb2 Rb1 Bb4 c1B Rc2 b2 Bf7 Rg8 h8N Rg7 h7 Ra1 Ba3 b1R+ Bb4 Rg6 Bg8 Rf6 Nhf7 Ba3 h8R Rb2 Rh7 Rc1 Nh6 Rf4 Rd7 Rf7 Be4 Bb3 Bd5 Qe7 Ne4 Qf6 Bf8 Qd6 Bg7 Qf8 Rc5 Bb4 Nd6 Ba3 Nc4 Kc2 Nd6+ Kb1 Rc4 Rf4 Rc2 Rf7
5nk1/QR1NRR1N/1n4r1/r1B2RP1/1qppBqp1/r4BN1/K1P5/3r1qb1 w - - 0 1 illegal: No possible last move, all moves rejected
2n2b1q/5NQ1/pp3K1p/1RPq1r1k/4RRNB/B2rN1R1/P1B5/r2q1n1q w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kf7 Ke3 Kg6 Kf4 a6 Ke5 e3 f4 h6 d4 b6 c4 e6 d5 e2 f5+ Kf7 g5 Qc7+ d6 Rh7 g6+ Kg7 c6 Qc8 d7 Qb7 d8B Ba3 c7 Ne7 c8N Nd5 Nh3 g1Q Nd2 g2 Nf2 Ne3 Rh4 e1R Ng4 Qh1 Nd6 g1Q Nf7 Bf8 Bd3 Nf1+ Be4 Qgg2 c5 Qc8 Ba3 Ra7 Be7 Rd7 Rb1 Rd3 Rb5 Qe8 Qa4 Ra1 Nc4 Qc8 Nce3 Nc6+ Kf4 Na7 Ke5 Qa8 Qd4 Nc8 Bd8 Rd2 Bc2 Rd3 Nf2 Qgb7 Re4 Rh8 Bh4 Qd5+ Kf4+ e5+ Kg4 Kg8 g7 Kh7 f6 Kg6 Qb2 Rh7 g8R+ Rg7 Ra4 e4 Kf4 Ne7 Nfg4 Nc8 Qc3 Kh5 Rab4 Qdc6 Kf5 Rg5+ Kf4 Bd6+ Nge5 Qe8 Ng2 e3 Nd8 e2 f7 e1Q f8R Rg4+ Kf5 Rb1 Ne3 Qe2 Re4 Qd1 Qa1 Rg2 Rg3 Qd5 Rf6 Rgd2 Nf7 Qh8 Qc3 Ra1 Qd4 Qb7 N5g4 Bf8 Ke6 Rg2 Rff3 Rgd2 Qg7 Rd5 Rf6 R2d3 Rff4 Re5+ Kf6 Qd5 Nf2 Rg5 Nfg4 Rf5+
rRb2b1k/B5N1/3Rb1rN/pRrpPp2/n1N2B2/Q2P3b/2n2B2/1nKB4 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Nf6 b6 Bh6 b5 Ng8 c5 Qf6 b7 Qb6 cxb6 Bf8 g4 f5 e4 Kf7 d3 Kg7 Kd2 c5 e5 a5 g5 h5 g6 c4 Be2 h3 Ra2 h2 Bf1 h4 Rb2 f3 Nh3 f2 Qb3 Ne7 Na3 Nec6 Nf4 h3 Be2 Rg8 Ne6+ Kh8 Ng7 Nd4 Bd1 Na6 b8B Nc2 b7 Nc5 b6 Na4 Ba7 f1B Rg1 h1N b8R h2 b7 Bh3 Bf2 Ng3 Qc3 h1B Rb5 Ne2 Rg4 Na1 Rd4 Nc2 Rd6 Bd5 Qb2 Be6 Qb4 Ncd4 Qc5 Nec3 Qb4 Nb3+ Kc2 Nb1 Bf4 c3 Nc4 Na1+ Kc1 c2 Qa3 Ra7 Ra8 Ra6 b8B Rc6 Bba7 Rb6 Rc6 d5 Rd6 Rc6 Rab8 Ra6 Bac5 Ra8 Ba7 Nd2 Ne8 Bb7 Nb6 Nc5 Kb2 c1R g7+ Kh7 Bf3 Nb1 Be2 Rc3 Bd1 Nc2 Kc1 Na4 Rd7 Rc6 Rd6 Bbc8 Nc4 Rh8 g8N Rc5 Nh6 Rg8 B4g3 Rg4 Bf4 Kh8 Ng7 Rg6
KQ2B3/Nr1p2B1/R2b3n/R5N1/1NnrB1pp/3bP1p1/n3qP1R/k1B3b1 w - - 0 1 illegal: No proof kernel
3nKB2/1Pr3N1/p1qR1PRB/n1B1p1QN/Bp6/n4b2/k1r1p1r1/1NbR4 w - - 0 1 illegal: No proof kernel
rk3n1q/6r1/3NP2q/6RR/2BNb1bQ/NBK1ppp1/3pBnP1/3Rb2R w - - 0 1 illegal: No proof kernel
q2qN3/3pbP1n/p1b5/1r1RBrkn/PRr1Q3/Bp1R4/1BpNB1N1/1K6 w - - 0 1 illegal: No possible last move, all moves rejected
Knq4n/1Q4RB/3NkrB1/1Pb2p1P/1R3rb1/1b2pp1R/1B1pNb2/R4N2 w - - 0 1 illegal: No proof kernel
3RB1B1/5p2/2BP1Rq1/Knb1pb1B/pRp1P3/n2N1r1r/N2kr3/1r1N1Q2 w - - 0 1 illegal: No proof kernel
1N1rN1B1/bP1P1r2/2Q4p/qn4RB/bn1RpBp1/3R1b2/1k1p1NK1/3Rb3 w - - 0 1 illegal: No proof kernel
2nN2B1/QpN1Br1b/B2b3p/R1p2n1n/4r1kN/P5n1/KRP1N1p1/R2q4 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 axb4 h4 f5 hxg5 fxg4 Kd2 Kf7 f4 Kg6 e4 d5 f5+ Kf7 a3 c6 f6 Ke6 g6 b3 Kc3 b2 Kb3 h6 f7 g3 g7 d4 Nd2 b1N Ndf3 g2 Nh4 d3 Ne2 d2 Ka2 Nf6 g8B Ra4 Rh3 Qd6 Rb3 Rh7 Rb2 Nh5 Qe1 d1N Qa5 c5 Qa7 Qd3 Bg5 Bd6 Be7 Ne3 f8R+ Rf7 Rd8 Nd2 Rf8 Kd7 e6+ Kc6 e5 Kd5 Re8 Ke4 Rd8 Bd7 Rc8 Rb4 Rc6 Rd4 Ra6 Nf5 Ra5 Qf3 Bd8 Bc8 e7 Nd7 e8N Nb6 e6 Ke3 e7 Ne4 Ng7 Neg3 e8N Re4 Nc7 Bd7 Ra4 Nc8 Be7 Bb5 Ra5 Bd3 Nge6 Qg4 N2d4 Qd1 Nd8 Kf4 Ne2+ Kg4 Nc3 Bb5 Bd3 Bd7 Ba6 Bb5 Ne2 Bc4+ Rb3 Bd3 Rb2 Re5 Ra4+ Nd4 Nd5 Bh7 Ra5 Re4 Nc7 Ndf5
3Rq3/1P4rq/K3pbr1/1Nnr2k1/2p1BRpN/3BR3/q1PQ1NNp/n1B5 w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 Bf5 h5 Bg6 hxg6 f5 Rh2 fxg4 Rh6 Qd3 Rh1 Qd8 Ke2 a5 d4 c5 f4 h5 b4 e3 Kd3 a4 Kc4 a3 d5 e2 g7 Kf7 b6 Kg6 Kb5 e1Q d6 g3 d7 c4 b7 a2 Nh3 h4 Nf2 h3 Qd2 g2 Bd3+ Qe4 Rf1 g1R Nc3 Na6 b8R Qe8 Rd8 Nh6 g8B h2 Bd5 Bg7 f5+ Kh5 f6 Nf5 f7 Ra7 f8N Bf6 Ka5 Nd4 b5 Qh7 b6 Nb3+ Kb5 g4 B5e4 Nac5 Ng6 Rg8 Nh4 Na4 b7 Rg7 Rb1 Na1 Rb3 Ra6 Ra3 Rd6 Rb3 Rd5+ Ka6 Rdg5 Nb5 R5g6 Rb8 Rg3 d8N Rf3 Rc8 Rf5 Ne6 Rd5 Nf4+ Kg5 Rc3 e6 Rb8 Nb3 Rd8 a1Q Nfg2+ Kh5 Re1 Qa2 Re3 Na1 Rb3 Kg5 Rf3+ Kh5 Rf4 Kg5 Bf1 Rdd7 Re3 Rd5 Bfd3 Nc5+
BN1q2qQ/p3N2P/2n5/Bqr5/K3pnq1/P2bN2p/1p1b1RBk/1B1R2R1 w - - 0 1 illegal: No proof kernel
4b3/pQ2R3/b2Rr1R1/K3kq2/1bp1ppB1/2qBn1R1/2P1NP2/B1b1b1NN w - - 0 1 illegal: No possible last move, all moves rejected
nK6/1N1bn1p1/nN3B1k/1R1Q2pB/Prp5/NRP2p1p/R7/1B2qbNr w - - 0 1 illegal: No proof kernel
1K1B1kbb/4N1pR/1p2P3/p1nBN1r1/1q2Q1R1/3N4/1PnBrpp1/N3R1n1 w - - 0 1 illegal: Other
q1B1RN2/B1p1b2p/3n4/R3r1N1/bQKp2N1/P1nBqp2/rR3P1p/3N3k w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 g5 h4 gxh4 b4 b5 cxb5 axb4 Kd2 Ke7 Kd3 Ke6 g4 Kd5 e4+ Ke6 b6 f5 g5 d5 g6 h3 g7 b3 b7 h2 Qg4 b2 Be3 Ra3+ Nc3 Qd7 Nf3 Qe7 Ba7 Nc6 b8N Nd8 Nd7 Nf6 g8N Nb7 Nh6 b1Q+ Kd4 Qe1 Bd3 Nd6 Nd1 Qd8 Rb1 Ba6 Rb2 Bb5 Rg1 Qa8 Ng5+ Ke7 e6 f4 e5 f3 Qf4 Ba4 Ng4 Nfe4 Qd2 Rg8 Qb4 Nc3 Kc5 d4 Rf1 Bg7 Nf8 Qe3 Rg1 Bf6 Rf1 Kd8 e7+ Kc8 e8B Be7 Rg1 Rg6 Rg3 Re6 Bd7+ Kd8 Bc8 Ke8 Ne4 Kf7 Ng5+ Kg7 Nf6 Kh6 Ng4+ Kh5 Rg1 Rf6 e6 Kh4 Rg2 Rf4 Rg3 Re4 Rg1 Bf6 e7 Re6 e8R Be7 Ne4 Kh3 Re1 Kg2 Ng5 Qc1 Re5 Kh1 Rf5 Qe3 Rd5 Nde4+ Kc4 Re5 Ra5 Rb3 Rd2 Rb2 a3 Ra2 Rb2 Nd6+
1KR4R/3qQN2/BbP1p1p1/R1npN2n/2p3bB/6P1/1nb2p1B/1NR1rk2 w - - 0 1 illegal: No proof kernel
b1K2R2/6Br/kpp1BN2/pN6/p1n1PRBp/2b2q2/1QP1b1B1/1N1q2nR w - - 0 1 illegal: Other
1r2BB2/1N4BN/Nb1b2np/1R2pnP1/1Kq5/Qb1Bp1k1/p1p1P1b1/1R1R4 w - - 0 1 illegal: No possible last move
3r3B/1b2B2r/NpPN2p1/1K4rr/1p4R1/kn1n2PQ/NRpp1b2/1B2RR2 w - - 0 1 illegal: No proof kernel
2b2rRn/2pp3q/NRPP2NN/B4r2/R3n1b1/1Qb2k1r/r4Br1/2nK1BR1 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 e4 Ke7 d4 Ke6 b4 h5 g4 a5 c4 f5 c5 f3 e5 Kd5 b6 Ke4 g5 f2+ Kd2 h3 b5 f4 d5 h4 g6 h2 e6 h3 e7 f3 e8N a4 b7 a3 b6 a2 c6 Bg7 d6 Nh6 Bg2 f1R Na3 Nf7 Nc2 Rf8 Nb4 Nh8 Na6 Qe7 Ne2 Rf2 Qb3 Bc3+ Kd1 Qh7 Bf1 Rg2 g7 f2 g8R Kf3 Rg1 h1R Nf4 h2 Bd2 Rf5 Nf6 Ra7 Rc1 a1N Ng4 Rf8 Nh6 Rf5 Nb4 Ra2 Ng6 Na6 b8R Nc5 b7 Ne4 Na6 Rf8 Ra8 Rf5 b8B Rf8 Qb7 Nb3 Rb1 Nc1 Ba7 Rf5 Rb6 Rf8 Bd3 f1B Bb5 Bc4 Be1 Be6 Bf1 Bg4 Qb8 Bg7 Ba5 Bc3 Rb4 Rf5 Ra4 Rf8 Qb3 Rf5 Rb8 Rf8 Rb6 Rf5 Bd3 Rf8 Re1 Rf1 Bb5 Rff2 Rg1 h1R Bf1 Rh3 Rb8 Rfc2 Bf2 Rcb2 Rb6 Rb1 Qe6 Rb5 Qb3 Rbf5
1Rr5/1q2Bb1b/NRqb2p1/2np2PK/Rr1q2BQ/1N6/1nNP3q/1R2Bk1b w - - 0 1 illegal: No possible last move
3bNB2/p2K2pr/n1Npr3/Bb1Rn1Rb/q4r1Q/k4N2/P5Pn/1BR1Nb2 w - - 0 1 illegal: No proof kernel
qKN2Nq1/1nr2r2/p2Q1RB1/P3R1Bb/2B5/rp2bNpR/nP2bk2/4bB2 w - - 0 1 illegal: No possible last move
N3rnR1/rp2r3/2Q1q3/1P1qb2p/1k2N1q1/2pB1b2/3R1KrP/n1B1RNBN w - - 0 1 illegal: No proof kernel
qB1kn1R1/rbprbB2/r1QB1p1N/2Kp4/3q1P2/2Pq2q1/5B1N/nN1R2R1 w - - 0 1 legal: proof: d4 e5 h4 exd4 a4 b5 axb5 g5 Be3 gxh4 Bg5 Bg7 Bc1 Bf8 Kd2 h5 Kd3 a5 Kc4 f6 b4 h3 g4 a4 f4 a3 e4 h2 g5 a2 g6 h4 b6 d3 g7 h3 c3 d2 e5 Ra6 e6 Ne7 g8N Nf5 b7 Nc6 b8B Bb7 e7 Nd6+ Kc5 Na5 b5 Rh7 Qf3 d1Q b6 Qd3 Ba3 Rg7 Ba7 Nb3+ Kb4 Rh7 Qc6 Rf7 Nf3 Qa8 Rg1 h1Q Rg4 h2 Rg1 Qg2 Nh6 h1Q Nh2 Qgg3 Bg2 Rg7 Bd5 Qhe4+ Bc4 Qed4 Rd1 Bc8 b7 Rf7 b8B Bb7 Rg1 Rh7 Nd2 Rg7 Rad1 a1R Nb1 Ra2 Bc5 Na1 Bb6 Qe5 Be3 Qed4 Bf2 Ra7 Bb2 R2a6 Ba3 Nf5 Kb5 Rh7 Bc5 Ng7 Bd6 Qdf3 Be5 Qfe4 Bg8 Qdd3+ Kc5 Qa4 Qb6 d5 Bd6 Kd7 e8R Qae4 Re5 Ne8 Rg5 Kd8 Qc6 Rd7 Bf7 Be7 Rg8 Qed4+
5qKb/RBp1kpB1/p1P1b3/2n2P2/qBpQ3n/5r2/rBN1N2R/n1NR3r w - - 0 1 illegal: No possible last move, all moves rejected
1N2rRqk/b1p4n/4bR2/p1rq1NBp/2PnB3/PR3N2/K2p1Q1n/1B3bR1 w - - 0 1 illegal: No proof kernel
1KR1NRB1/N3R1n1/6pq/bNRbp1np/1rB2QP1/B3P3/2p1r3/q1qq3k w - - 0 1 illegal: No proof kernel
K1b1NQr1/1r1k1n2/pR1B3p/3BRP2/q4Q1p/pn1RP3/R3R3/1q5N w - - 0 1 legal: proof: a4 g5 b4 d5 c4 f5 h4 c5 bxc5 gxh4 cxd5 b5 e3 bxa4 Ke2 e5 e4 Bh6 exf5 e4 Ke1 e3 Ke2 Bg5 Kd3 e2 Kc2 Be3 dxe3 Qd6 Kd2 Qd8 Kd3 e1Q Kc4 a6 g4 h6 f4 Qb6 c6 Ra7 d6 Qe2+ Kd5 Rc7 g5 Rch7 f6 Nd7 g6 Nc5 f7+ Kd8 f5 Qa2+ Bc4 Nb3 d7 Kc7 d8R Qg2+ Qf3 Qc2 f8Q Qg2 g7 Qg4 Ra2 Nd2 Rh2 Nb3 Nh3 Qb7 Qf4+ Kb6 Nf2 Nc5 Ba3 Qh3 Nd2 Nb3 Nde4 Nd2 Nf6 Qf1 Ne8 Qd1 Bd6 a3 Nh1 Bd7 Re2 Qb8 c7 Qa4 c8R Nb3 Rc5 Bc8 Rc6+ Ka7 Rb6 Nf6+ Ke5 Qb7 g8R Ne4 Bd5 Ng5 Rg6 Qb8 Re6 Rb7 Re7 Rg8 Re6 Qc6 Rd7 Nf7+ Ke4 Nc1 Re5 Qb5 Kd4 Qa4+ Kc5 Ka8 Rb5 Nb3+ Kc6 Qa7 Rd8 Q7d4 Rd7 Qd3 Rd8 Qb1 Rd7 Qae4 Rb6 Ka7 Rd8 Qb4 Rd7 Qa4+ Rb5 Rg5 Rc7 Kb8 Rg2 Qd4 Rge2 Rg8 Rb4 Qde4 Rd4 Ra7 Rd3 Qa4+ Kb6 Qf1 Rc4+ Rc7 Rb4 Qb1 Rb5 Be6 Rb4 Kc8 Rb5 Re7 Rb4 Bd7 Ka7 Be6+ Ka8 Rb7 Rb5 Kd8 Rb4 Bc8 Rb6 Kd7
B7/q3b3/3BP1Nk/RQN4n/1P4q1/q1Q1r2K/2qbRq1Q/2b1QnQr w - - 0 1 illegal: No possible last move
2b2N2/2KNn3/q3Qn2/2R5/bN2Nq1Q/1R1rbq1N/B4PPq/Br4rk w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Kd3 Kf6 Kd4 c5+ Kc4 Ke5 d4+ Ke4 f6 e5 b6 h5 Kb5 h3 d6 h4 f7 c4 d5 h2 d7 b3 b7 c3 d6 b2 Bf4 h3 Nf3 c2 Ra2 c1Q Ra5 Qf6 Kb6 Ra6+ Kb5 Ne7 d8N Nd7 b8Q Bh6 Na3 b1B f8N Bc2 Qb6 Qg6 Bc4 Nf6 d7 Ba4+ Kc5 Qh5 Rf1 h1R Kd6 h2 Nb1 Rg1 Kc7 h1Q Nb7 Q1h2 Qe6 Rd6 d8N Bg5 Bg3 Be3 Nc6 Qd2 Ba2 Kd3 Ng5 e4 Qc1 Ke2 Nc5 Qf3 Qcc4+ Qd3 Qd4 Qa6 Ncd7 Rh5 Nh3 Rb5 Nd2 Rb1 Rc1 Qf4 Rcc5 Qf3 Nc4 Kf1 Rab5 Bf4 Qed5 e3 Ncb6 e2 Nc4 e1Q Rb3 Qee4 Nb4 Rh1 Qe6 Be3 Be5 Qef5 Qh4 Q5f4 Ng5 Kg1 Ba1 Qhh3 Nd2 Kh2 Qhg4 Rhg1 Nde4 Kh1 Qh4 Qhh2 Nh3 Rd3+
B1b3qR/rRbn3n/4BR2/Rb3bP1/r5R1/2nk3b/2N1Nb1P/2K2Q1Q w - - 0 1 legal: proof: c4 e5 a4 h5 b3 b5 axb5 d5 cxd5 h4 Bb2 e4 Qc2 e3 Bf6 exf2+ Kd1 gxf6 Qg6 f5 Qh7 f4 Qxh4 Ba3 Qh7 Bf8 d4 Ke7 e4 Kf6 g4 a5 b6 c5 e5+ Kg5 d6 f5 b4 c4 d7 f3 d5 Kf4 d6 Ke3 g5 f4 b5 a4 b7 c3 e6 c2+ Kc1 a3 b6 a2 e7 Nf6 e8B Ra7 Bg2 f1B Bf7 f2 Qf5 f3 Na3 Nh7 Be6 Bd3 Ne2 f1B Rg1 f2 Qb5 Qe8 d8R Nd7 b8R Bf5 Ba8 B1h3 b7 f1B Rg4 Be7 Qd5 Qg8 Rf8 Bd8 Qh1 Bc7 Rf7 Kd3 Rf6 Bfg2 Qf1 Bc6 Qh1 Bb5 Qf1 Ndf8 d7 Ra4 d8Q+ Nd7 Qf8 Ra7 Qh1 Ra4 Rb1 a1B Rbb4 Ra7 Ra4 Bd4 Ra5 Be3+ Kb2 c1N Nc2 Na2 Kb1 Bd4 Qf7 Nc3+ Kc1 Bf2 Qf8 Ne5 Qf7 Bcd7 Re8 Bc8 b8R Nd7 Rb7 Nhf8 Rd8 Rh4 Re8 Nh7 Rd8 Qg6 Rh8 Qg8 Qf8 Nb6 Qb4 Nd7 Qf4 Be1 Qff1 Bf2 Rg1 Rb4 Rg4 Ra4
Q2N2B1/3B2rn/n1B1qr1B/bQb1n2n/B2PKr2/k3N1P1/2r5/r3R1R1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 h4 b5 axb5 exf4 b6 g5 hxg5 a5 b3 a4 Rh5 a3 Rh3 Bd7 Rh1 Ba4 bxa4 Qd3 Nh3 Qd4 Ng1 Qd8 Kf2 Kd7 Kf3 Kd6 e4 Kc5 d4+ Kb4 b7 h5 g6 c5 a5 f5 e5 c3 g7 c2 a6 a2 a7 h4 e6 c4 e7 c3 e8B h3 Bd3 h2 Bh5 Qf6 Bg4 Qe6 Qe1 Na6 Qd1 Rh7 Bh5 Bc5 Nd2 Nf6 g8B Rc8 a8B Rg7 Be8 Nh7 Bb2 c1B Bf1 c2 Nc4 Bd2 Qe2 c1N Ne3 Nd3 Re1 a1R Bc1 Rc6 Nh3 Ne5+ Kf2 f3 b8Q+ Ka4 Rg1 f4 Bd7 Ba5 Ng5 h1R Qd3 Rh6 Nf7 Rf6 Qf8 Kb4 Nd8 Rc7 Qe2 Rc8 Bd2+ Ka3 Qb5 Rc7 Be2 Rc8 Bd1 Rc6 Kf1 f2 Ke2 f1N Ba4 f3+ Kf2 Rc7 Bac6 Ng3 Qe8 Nh5 g3 Qb3 Nd1 Qc4 Ke3 f2 Ke4 f1R Bh6 Qe6 Ne3 R1f2 Nb7 Rc2 Qb8 Rc8 Qa8 Rcf8 Nd8 Rf1 Rd1 R8f6 Re1 R1f4+
1R1nB2K/2q1b3/rr3kb1/2qQn3/QqQ1B1Pp/1N6/RQP2Nb1/Q1r5 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 b5 exf5 Na6 Ba3 Bh6 axb5 Bf8 b6 Nb8 b5 Ba6 Bc5 Bc8 Bb4 axb4 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 h4 f4 b3 g6+ Kf6 b7 d6 b6 d3 g7 b2 Ra2 d2 Nh3 Qe7 Nf2 Rh7 Bb5 Nc6 b8Q Nb4 b7 Qc7 Be8 Rh6 Qa7 Be7 b8Q Nc6 Qa4 Ra6 Qc1 d1Q Nd2 b1Q Qbb2 Bb7 Nb3 Qg1 Qd2 Bc8 Qd5 Nd8 Qa1 Rg6 Qdc4 Nh6 g8B Nhf7 Bh7 Qbe1+ Kd5 Qb4 Ke4 Qg3 Rb1 Qgc3 Kd5 e4 Rbb2 e3 Ke4 Kg7 f6+ Kf8 f5 e2 Kf4 Ne5 f7 Kg7 Ke4 Kf6 f8Q+ Nef7 Kd5 e1R Qg8 Rc1 Ke4 Ne5 Qd5 Qbc5 Rb1 Q3b4 Qb2 Kg5 f6 Be6 f7 Kf6 f8Q+ Bf7 Qa1 Rh6 Qg8 Bg6+ Kf4 Rb6 Qdd4 d5 Qdb2 d4 Qgd5 Bf5 Bhg6 d3 Bh7 d2 Bhg6 Bd3 Be4 Kg7 Kf5 d1B Bg6 Bf3 Be8 Rhf6+ Kg5 Rfe6+ Kh5 Kf6 Kh6 Rec6 Kh7 Bg2 Kg8 Ra6 Kh8 Rcb6 Bh7 Bh3 Nd2 Rd6 Qbd4 Qc3 Rb8 Rdb6 Nb3 Q3b4 Qdb2 Bg2 Bhg6 Bf5 Bh7 Be6 Bd3 Bf5 Be4 Bg6
1nbn1bQ1/N2k1r2/2bBN1bQ/5BRr/K1q3P1/3RBBBp/1P3n2/2r5 w - - 0 1 illegal: No possible last move
Q7/N3Bp1b/1q1R3N/r1BrbQP1/3bnR1P/5N1n/1NN1k2K/1n1b2r1 w - - 0 1 legal: proof: f4 e5 a4 exf4 c4 b5 axb5 g5 e3 h5 Qc2 d5 cxd5 h4 Be2 h3 Qh7 g4 Bf3 gxf3 Nxh3 Bg7 Ng1 Bf8 Kf2 Kd7 b4 Kd6 d4 c5 h4 a5 g4 a4 b6 c4 b7 c3 b5 a3 e4 a2 e5+ Kc7 b6+ Kd7 d6 Ke6 d7 Kd5 g5 Kc4 e6 c2 e7 Ra5 e8N Bb4 d5 Bc5+ Be3 c1N d6 Ne2 Qf5 Qf6 d8Q Bd4 d7 Nc6 b8N Ne5 b7 Qb6 Nc3 Nf6 Rd1 a1B Na6 Ng6 Na4 Nc3 b8N Nb1 Ng7 Ne4+ Kf1 f2 Kg2 f1R Nb4 f3+ Kh2 f2 N8c6 Ba6 Qa8 Nf4 d8B Nh3 Be7 Rd8 Nf3 Rg1 Nc2 f1B Na7 Be2 Nb2+ Kc3 Bf2 Rdd5 Rd2 Bad3 Rd1 Rg3 Rhf1 Be5 Bfc5 Rg1+ Qf4 Bd4 Nf5 Be5 Rd2 Bd1 Nh6 Bd4 Rg2 Be5 Rg4 Bd4 Qf5 Be5+ Rf4 Bd4 Nfe1 Kd2 R1f3 Ke2 Rg3 Ba6 Rd3 Bb7 Nf3 Bc8 Qf6 Bf5 Qe5 Bh7 Qf5 Be5 Rd4 Rd7 Rd6 Bd4 Rg6 Rd5 Rd6 Be5 Nd3 Bac3 Nb2 Bcd4
1nb1Q3/3N2Q1/Br2bP2/3knN2/2r1NrbN/7K/pP5B/R1qqNrR1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 h4 g5 Qc2 gxh4 Qd1 e6 Be2 a6 Bf1 Bc5 Bd3 Bd4 Bf1 Ba7 b6 Ke7 bxa7 Ke8 d4 Ke7 g4 Kd6 f4 c5 Kf2 h5 Kg2 h3+ Kg3 a5 f5 c4 g5 e3 f6 a4 g6 c3 g7 a3 Bd2 h2 Qc2 e5 Nf3 a2 Qh7 c2 Be1 c1R Na3 e2 Rg1 h1B Nh4 e4 Nc2 Nh6 g8N e3 Qg7 Nf7 Nh6 Ne5 Bd2 e1R Ba6 e2 Bf4 Rf1 Ne1 Qd7 Kh2 Rc4 N6f5+ Kc7 d6+ Kc6 Kg3 Bd5 Kh3 Be6 Bh2 Qd8 d7 Kd5 Qe7 Qc7 d8N Rg8 Nb7 Rg4 Nc5 Rgf4 Qg7 Qd7 Ned3 e1Q Ne4 Qc1 Ne1 Qa4 Rg6 Qad1 Rg2 Nbd7 Rg1 Rb8 a8N Rb5 Nc2 Nb8 Nb6+ Kc6 Nd7 Rb6 Ng2 h4 d5+ Kc7 d6+ Kc6 Nce1 Kd5 Nf3 Rf2 Nge1 Rf1 Kg2 h3+ Kg3 Bg8 N3h4 Bf7 Nf8 Bh5 d7 Bg4 d8Q+ Ned7 Qe8 Ne5 Rg2 Be6 Bg1 h2 Nd7 h1B Bh2 Bh3 Rg1 Bf3 Ndc5 Bc8 Nd7 Bh5 Ng6 B3g4 Ngh4 Bf7 Kg2 Be6 Kg3 Bf3 Kh3 Bg4+
1R1q1n2/k4rBr/4Q1B1/b1r2p2/2PK1QN1/Q1N2qQ1/n1P2r1n/2Q1Rr2 w - - 0 1 legal: proof: f4 e5 a4 exf4 d3 b5 axb5 c5 Bd2 c4 dxc4 Nh6 Bc1 Ng8 h3 g5 Be3 f3 Bc1 fxg2 Kd2 g4 Ra2 g3 Ke1 Bb7 Ra3 Bf3 Ra1 Bg4 hxg4 Bc5 Nc3 Bd6 Nb1 Bf8 Kd2 d5 Ke3 Kd7 b4 Kc8 g5 Kb7 g6 f5 g7 h5 b6 a5 b5 a4 Kd4 a3 e4 h4 e5 h3 e6 a2 e7 h2 e8Q Rh7 Ba3 Ra5 Qde1 Nh6 g8Q Bb4 Qg5 Ng4 Qf4 Nd7 Nh3 g1R Qec1 g2 Bb2 Nf8 Be2 Rf1 Qe6 g1R Nf2 Rg2 Nc3 Ra7 Qfd6 Ba5 Rb1 a1R Qa3 Ka8 Rg1 Raf7 b7+ Ka7 Bd1 h1Q b6+ Ka6 b8Q Nh2 Ng4 Rgf2 Qg3 Qf3 b7+ Ka7 Kc5 d4 Be2 Rd1 Re1 d3 Qgf4 d2 Qg3 Qc7+ Kd4 Ra2 Ba1 Rb2 Qf4 Rb5 Qg3 Rc5 Rb4 Qb6 b8Q+ Ka6 Qbf4 Ka7 Rb5 Qc7 Rb8 Qc8 Qcb2 Rb1 Qc1 d1N Bd3 Qe8 Be4 Qe7 Bc6 Qh4 Be8 Qd8+ Nd5 Nc3 Bb2 Rf6 Bg6 Rff7 Ba1 Na2 Bb2 Qb6 Nc3 Qd8+ Qfd6 Qc8 Nd5 Re7 Re4 Qe2 Qh1 Reg7 Qdf4 Qe1 Kd3 Rb7 Bg7 Rf7 Kd4 Qe2 Nc3 Qf3 Qe1 Qe8 Qee3 Rh1 Qec1 Rhf1 Re1 Qd8+
B3N2b/1p1r2B1/2QB4/rrr2r2/1R3qb1/NKqRbB1B/3PQ1P1/k4n2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 f5 f4 a5 h4 axb4 e4 Nc6 fxg5 f4 h5 Nd4 h6 Nf5 exf5 Bxh6 Qc2 Bg7 Qd1 Bf8 a4 Kd7 a5 Kd6 g6 Kc5 f6 e5 f7 h5 a6 e4 d6 b3 a7 Kb4 d7 c5 g7 f3 Qc2 f2+ Kd1 e3 Ra6 h4 Qd3 h3 Ra5 h2 Na3 c4 Nb1 b2 Kc2 e2 Rc5 e1B Rc6 c3 Qh7 Qh4 d8Q Qf4 Nh3 Nf6 g8B Nh5 Qe8 Bg4 Rd6 Bg7 f8B Ng3 Qd3 Rh5 Ng5 Bh8 Ne4 Rc5 Be2 f1R Be6 Bf2 Na3 b1R Bg7 Be3 Qc6 Rf3 Rg1 h1R Nf6 Rh7 Ne8 Nf1 Bf5 Rf2 Bf3 Rb3 Qe2 Rb1 Bh6 Rd7 Rd3 Rb3 Bg7 Rb2+ Kd1 Kb3 Rh1 Ka2 Rh4 Rb3 Kc2 Rbb5 Be6+ Ka1 Bf5 Rad8 a8B Rdd5 Be6 R8d7 Bf5 Ra5 Kb3 Re5 Nb5 c2 Ba3 c1Q Bb4 Bh5 Bh3 Bg4 Na3 Qd4 Be4 Rff5 Bd5 Qf4 Bf3 Rcd5 Bd6 Qc5 Be7 Qcd4 Bd6 Rdc5 Rh6 Red5 Re6 Qf6 Re4 Rcb5+ Rb4 Rdc5 Bb8 Q6e5 Bd6 Qc3+
1n1QB1q1/3b1n1N/N1kbNQ2/1R1N3N/2P1KR1q/1np3B1/3q3P/q1b2r2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 a4 h5 g4 hxg4 axb5 Rh7 Ne2 Rh4 Ng1 Rh8 b3 dxc4 Bh3 c5 Ra4 c3 Ra1 c2 Bf1 c4 Na3 a5 Nb1 c3 Ra4 Ra7 Ra2 Rc7 Ra1 Rc4 bxc4 Qd6 Ra3 Qb6 Ra1 Qd8 Ke2 Kd7 Ke3 g5 f4 e5 d4 e4 d5 a4 d6 a3 f6 g3 f5 g4 b6 a2 b7 g2 f7 g3 f6 Ne7 Nd2 Rh6 Ne2 g1N Rb1 a1B Bg2 Rg6 Rb5 Nec6 Nf1 Nf3 Nf4 Qe8 Qd4 Nd2 Nh5 Nd8 Bh3+ Kc6 d7 Bd6 f8N g2 f7 Rg4 Ne6 Rf4 f8N Bb2 Qf6 Nb3 Nh7 Nf7 d8Q Qg8 Bf5 Rf2 Bg6 g1Q Bd2 Bd7 Be1 Qg4 Rg1 Rf4 Bg3 Qh4 Rg2 Rf5 Rf2 Bba3 Rf4 c1Q+ Nd2 Qa1 Nf1 Ng5 Be8 Bc1+ Ke2 e3 Kd3 e2 Ne3 Nf7 Nd5 Na6 Ke4 e1Q+ Ne3 Qd2 Nd5 Bb4 Rg4 Rf1 Rf4 Be7 b8N+ Kd6 Nc6 Nb8 Ncb4 Bf8 Na6 Kc6 Ne3 Bfa3 Nd5 Bd6
3R1BN1/5n1n/kP4B1/qpQ1q3/1n2Q2q/1b2bRQQ/1P3b2/N1Qb1K1r w - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 c4 d5 cxd5 gxh4 a4 b5 d4 cxd4 a5 a6 Be2 Ra7 Bd3 Rb7 Bf1 Rb6 axb6 a5 f4 Kd7 g4 h5 g5 e5 g6 h3 f6 h4 f5 a4 g7 d3 d6 Kc6 f7 Kb7 d7 h2 f6 a3 Ra2 d2+ Ke2 h3 Nc3 e4 Nf3 e3 Nd4 Ka6 Nb3 Qc7 d8Q Bc5 f8Q Nc6 f7 Nf6 g8Q Be6 Qg3 Qe5 Na1 Nb4 Qfe7 Bb3 f8Q Nh7 Qdd7 Bd4 Rg1 h1Q Ne4 h2 Nf6 Qhe4 Qf5 h1N Qfh3 Nf2 Ng8 Nfd3 Bg2 Qg4+ Kf1 Qh4 Be4 Bc5 Qc2 d1B Bg6 Bd4 Qff3 Bc5 Qe4 e2+ Kg2 e1B Bh6 Bd2 Rf1 Bf2 Qc1 Bde3 Qeg5 Qd6 Qcc5 Ne5 Bf8 Nf7 Qc1 Qe5 Qc5 Be1 Rf3 B1f2 Kf1 Nc6 Nc2 Nb4 Ra1 a2 Rb1 Nf6 Na1 Rh5 Rc1 Nh7 Rc2 Rh6 Rd2 Rh5 Rd8 Rh6 Nc2 a1Q Q5f4 Qa5 Na1 Bd4 Qfc1 Bde3 Qhf5 Qhf6 Qe6 Rh3 Q6f5 Qh4 Qd7 Rh2 Qdh3 Rh1+
2rqB1Bb/KNPn1q2/1r2r1nk/p3NR2/1P2Q1R1/5NQq/2n3qN/N7 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Qb6 f4 Kd8 f5 Bb7 Bf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ke8 Nh3 Qc7 Ng1 Qd8 Ke2 Kf7 Kd3 d5 b4 e5 c4 h5 g6+ Ke8 f7+ Ke7 f6+ Ke6 c5 a5 g7 h4 g5 Kf5 b6 Kg6 b7 f3 c6 f2 Qc2 h3 Nd2 h2 Ngf3 Rh7 Nb3 Rh5 Rg1 h1Q Rg4 Kh7 g6+ Kh6 c7 Rf5 Nh2 Nd7 b8N Qg2 Nc6 Ne7 g8B Bg7 f8N Bh8 g7 Rc8 f7 Ng6 Ne6 Rf6 Nec5 Re6 f8N Qh4 Be2 f1Q Nb7 Qf7 Rf1 Qd8 Na1 e4+ Kd2 e3+ Kd3 Qh4 Ne5 Qhh3 Nh7 Rb6 Bf3 e2 Ng5 e1R Qe2 Re6 Qe4 Rb6 Rg3 Re2 Bh5 Re1 Ngf3 Re2 Rf2 Re3+ Kc2 d3+ Kb3 d2+ Ka4 d1N Rg4 d4 Rf1 d3 Rf2 Re6 Kb5 d2 Rf1 Re1 Rf2 Ne3 Rf1 Re7 Ka6 d1Q Ka7 Re6 Rf2 Nc2 Rf1 Nh4 Bg6 Rb6 Bh5 Qfd5 Be8 Ng6 Qf4+ Kh5 Nc4 Qge2 Be6 Nd4 g8Q Nf8 Rg3 Qeg2 Nfd2 Nc2 Qd4 Re3 Rf5+ Kh6 Ndf3 Nh4 Rg7 Re5 Qe4 Qd7 B6f7 Ree6 Nce5 Qe7 Rg3 Qdd8 Qgg4 Nhg6 Bg8 Nd7 Qgf4+ Kg7 Rg4 Qf7 Qg3 Kh6
2r2r2/2Q2b1r/n3n3/4BR1P/2Bn2rQ/1n3Q1p/RP1QNQ2/rkq2NK1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 g3 h3 Ra4 h2 Ra6 Nf6 Ra1 Ng8 Nh3 h5 Ng1 h4 Qc2 h3 Qb3 Be7 Qd1 Bh4 gxh4 Kd7 Ra5 Ke7 Ra1 Ke8 Kf2 Kd7 d4 Kd6 e4 f5 b6 a5 h5 c5 b7 f3 Bd3 f4 Ba6 c4 Bb5 c3 Ra4 c2 Qd3 Nf6 Qc3 Nh7 Kf1 f2 Qg3 Qg5 Nd2 Na6 Bc6 Nf8 Qf3 Ne6 Bb5 Rh7 Ra2 a4 Ne2 a3 Bc4 Bd7 Rg1 h1N Rg3 Qh6 Rg5 Be8 Rf5 Rc8 b8Q+ Nac7 Qb7 Na6 Qg7 Bf7 Qgg3 Qg5 Qh4 Qh6 Ra1 a2 e5+ Kc7 d6+ Kb6 d5 Kc5 d7 Kb4 d8Q Qg5 Rb1 a1R d6 Qh6 d7 Ka4 Ne4 Kb4 Be3 c1N Qc7 Nb3 d8Q Ra4 Bd4 Qg5 N2g3 Qh6 Nd2 Qg5 Ke2 f1R Ra1 Rg1 Ra3 Ra1 Ndf1 Qh6 Qf2 Qg5 Ra2 f3+ Kd3 Qf4 Ne2 Qc1 Qdg5 Ng3 Qgf4 Ne4 Qd2+ Nc3 Ke3 Rch8 Qg1 f2 Kf3 Rd8 Kg3 Ra8 Kh2 Rc8 Qh1 Be8 Qf3 Bf7 Ne3 f1R Qhf2 Rg1 Nf1 Rgg8 Kh1 Rgf8 Kg1 Ra3 Qh4 Ka4 Qhf2 Nb5 Bc3 Nf4 e6 N5d4 e7 Nfe6 Rg5 Nb5 Be5 N5d4 Nc3+ Kb4 e8Q Ra4 Rf5 Na5 Be2 Kb3 Qed8 Rb4 Qdh4 Ra4 Qdg5 Kc2 Qgd8 Nab3 Bc4+ Nd2 Ne2 N2b3 Qdg5 Kb1 Qd2 Ra5 Bh8 Re5 Bf6 Re4 Be5 Rg4+
KQn4q/4nqN1/k1qQ1q2/P3QBP1/b2b4/q3Q1pr/1R4QN/4q1BR w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 h5 g4 g5 f4 b5 Bd3 Ra6 Bf1 Rg6 Nf3 hxg4 Ng1 g3 Qb3 g4 Qd1 Rg5 fxg5 Rh6 Bb2 Rh7 Bc1 Rh8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 d4 Kb6 h4 e5 a4 c4 a5+ Ka7 f6 c3 d6 c2 Kd5 g2 d7 b3 h5 b2 h6 e4 h7 e3 f7 b4 Nh3 g1Q Qe1 e2 Nf4 g3 Ra2 b3 Bh3 Qf2 Ne6 Qg1 Ng7 Ba3 f8Q Qf6 d8Q Qe3 Qfd6 Bc5 Bf5 Bd7 Nd2 b1Q Nf1 b2 Nh2 Nc6 Q8b8+ Ka6 Qd2 e1Q Qg2 Qf4 Be3 c1Q Bg1 Qd3 Qb3 b1Q Rb2 Qdc2 Qe3 Qa1 Qb8 Bb6 Qbe5 Qf7+ Kd6 Qf3 d5 Bd4 Kc7 Na7+ Kb8 Ba4 d6 Nc8 d7 Nge7 d8Q Qcc6 Qdd5 Qcf6 Ka8 Q3h5 Qd7 Qa3 Qdd6+ Qc6+ Rb7 Rd8 h8Q Rd7 Qd8 Qh7 Q8c7 Rd8 Qb8 Rh8 Bg4 Qhg8 Bf5 Rh3 Qdd5 Qcd6 Rb2 Qh8 Qc5 Qd7 Qcd6+ Qc6+
2N1r1N1/1B6/npQ5/QP2Rb2/n1Pn2rn/KB1kB3/R6B/B1b2rrn w - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 gxh5 c5 b4 cxd4 e4 f5 exf5 e4 b5 Qe7 Qd2 Qd6 Qb4 Qe5 fxe5 axb4 Kd1 Kf7 h4 g5 a4 d5 a5 g4 h6 g3 a6 e3 f6 Ke6 f7 Kf5 h5 Ke4 a7 d3 h7 d2 h6 g2 e6 b6 e7 b3 e8Q+ Be6 Ra2 b2 Bc4 d4 Qc6+ Bd5 Na3 b1R Nf3 g1N Ne5 Na6 Ng4 Re8 a8B Ne2 Re1 Ne7 Bb7 Nf5 Bb3 Nh4 Nc4 Rg8 h8Q Ba3 f8B Bb2 c3 Kd3 h7 Be6 Bd6 Bf5 Nh6 Rg4 Ng8 Ng3 Bf4 Nh1 Nd6 Ra1 c4 Kc3 Ra3 Rb1 Ke2 d1N Bh2 Ra1 Ra5 Ba3 Qg7 Nb2 h8B Rb1 Nc8 Ra1 Rf1 Rb1 Ke1 e2 Rf4 Ra1 Re4 Rb1 Nf6 d3 Ng8+ Kb4 Kd2 e1N Qd4 Nc2 Qf2 Ra1 Qe1 Rb1 Bd4 Ra1 Be3 Nd4 Re7 Nd1 Bb2 Nc3 Re5 Rb1 Qf2 Rbg1 Ba1 Bb2 Ra2 Na4 Qe1 Bc1+ Kd1+ d2 Re4 Ne2 Kc2 Nd4+ Kb1 Be6 Re5 Bd7 Rb2 Kc3 Ka2 Kd3 Ka3 d1R Qb4 Rdf1 Qa5 Bd2 Rc2 Bf5 Ra2 Bc1+
n1kB2r1/R1B1qr2/4R2r/1qq1PK1B/3Qp3/1r1NBBQ1/r6P/n2q2N1 w - - 0 1 legal: proof: e4 c5 g4 b5 d4 cxd4 a4 h5 axb5 hxg4 Ra6 d3 Ra3 Nf6 Ra1 Ng8 f3 e5 Bf4 d5 Bd2 d4 Bc1 Bb7 f4 Bd5 exd5 e4 Qf3 Bd6 Qd1 Be5 fxe5 Qe7 Kf2 Qg5 Ke1 Qd8 Kf2 Kd7 Kg3 g5 c4 a5 b4 f5 d6 d2 c5 d3 c6+ Kc8 b6 f4+ Kf2 a4 c7 f3 Ke3 g3 b5 f2 Ra2 a3 Nc3 g4 Kf4 g2 Be2 f1Q+ Bf3 g3 Qa4 d1R Ra1 a2 Nd5 d2 Qc4 Ra3 Qd4 Nh6 Nb4 Ng4 Nd3 Rh6 Kf5 Qe7 Rb1 a1R d7+ Kb7 d8B R1a2 Rb2 Na6 c8B+ Kb8 b7 Rb3 Bd7 Nc7 Be8 Na8 Bh5 Qe2 Rc2 Rf1 Rc6 d1Q Re6 Qb2 Be3 Rf2 Ne2 Qbb1 Rf1 g1Q Re1 g2 Rf1 Qh1 Ng1 Qdc2 Rc1 Qcc5 Rc4 Qb2 Ra4 Qe2 Ra7 Qb2 Ne2 Qd1 Ng1 Qec7 Bdg5 Q7e7 Bh4 Kc7 b8B+ Kc8 b6 Qbe2 Bc7 Qef1 Nb4 Qfb5 Nd3 Rf1 Ne2 g1R Bf6 Rg3 Ng1 Nf2 Bh4 Rg8 Bf6 Ng4 Bfg5 Nf6 Bh4 Nd5 b7+ Kd7 b8Q Rff2 Qc3 Nb4 Qb6 Nc2 Qd6+ Kc8 Qdd4 Na1 Bhg5 Qee8 Bgd8 Qee7 Qe1 Rfg2 Qh4 R2g7 Qg3 Rf7+
1b2B3/Qr1B1Nn1/1n2brR1/2rQ1q2/R1PKp2q/R2qR3/p4R1P/1N5k w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 f6 h6 g4 Ba6 g5 Qc7 f5 Qd8 fxg7 Bb7 g6 Bc8 Bg5 hxg5 Ke2 e5 Kd3 Ke7 b4 Kd6 c4 a5 b6 g4 b5 a4 f6 e4+ Ke2 Ke5 b7 Kf4 b6 d5 f7 g3 Bh3 g2 Nd2 a3 Rb1 a2 Ndf3 d3+ Kd2 d4 Ng5 Be6 Rb4 Bd6 f8R+ Nf6 g8R Ra5 g7 Rh7 N1f3 g1R Ra4 Rf1 Nf7 Nbd7 b8Q Nh5 b7 Qh4 Qa7 Nb6 b8R Rc5 Ra8 Be5 Rg1 Bb8 Rg3 Rf2+ Ke1 Ke3 Nd2+ Rf3 Nb1 Kf4 Bf5 d2+ Ke2 Rf1 Rh8 Rf3 g8B Ng7 Bg6 Rf1 Rc3 Kg4 Rb3 d3+ Ke3+ Kh3 Kd4 Kg2 Qh5 d1Q Qd5 d2 Re3 Kh1 Bf5 Rh5 Rh6 Qdg4 Rg6 Rh7 Raa3 Qgh5 Bh3 Rf6 Bg4 Bc8 Bd7 d1Q+ Kc3 Rf1 Nh6 Bd6 Be8 Bf5 Qa4 Bb8 Be6 Bh3 Qad7 Nf5 R8a4 Rg7 Qa7 Rb7 Rff6 Ng7 B6d7 Be6 Nf7 Qde2 Kd4 Rf3 Rg5 Qf1 Rfg6 Rf6 Rg2 Qhf5 Rf2 Qd3+
nqbb3Q/3r1nRB/1Q1N2PP/1NQ5/1q2n1b1/1k1p1B1r/p2Q1R2/Q5K1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 f6 h6 g4 Ba6 g5 Qc7 f5 Qd8 fxg7 Bb7 g6 Bc8 Bg5 hxg5 Kf2 d5 b4 Kd7 c4 Kd6 h4 a5 b6 e5 f6 g4 h5 d3 f7 d2 h6 a4 b7 a3 b5 Kc5 b6 Kb4 c5 d4 c6 e4 c7 Nf6 g8B Nbd7 b8Q Rh7 b7 Be7 f8Q Nb6 Nh3 g3+ Kg1 g2 Nf2 e3 Nc3 e2 Qa7 e1Q b8Q Ne4 Nb5 d3 Qc2 d1B Rh2 Bdg4 Qc1 Rf7 Bh7 Kb3 Qd2 Rf3 Qh8 Rh3 Qaa5 Qb1 Ra2 Qb2 Be2 Ra7 Bf3 Na8 Qbb6 Qd6 Ra1 Qb4 Re1 Bd8 Re2 Ng3 Re7 Ne4 Rg7 a2 Qaa6 Ng5 Ne4 Nf7 Ned6 Qe5 Qd4 Qe8 Qa1 Qg8 Kf2 g1N Qb6 Ne2 Rg2 Nc3 Kg1 Ne4 Rf2 Bcf5 c8Q Rd7 Qcc1 Qe8 Qcc5 Qe5 Nc8 Qb8 Ncd6 Re7 Bg8 Bc8 Bh7 Rd7
2Bb1B2/5p2/B2Q2pn/n1B1rb2/2R1nP1b/2PNbK2/q3B1N1/1krRQ3 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 c4 Nh3 c3 bxc3 Qa5 Ng1 Qd8 g4 e5 dxe5 d5 g5 d4 g6 d3 Ra3 dxc2 Ra6 hxg6 Ra3 g5 Ra1 g4 f4 Ke7 Kf2 Ke6 e4 a5 h4 g6 h5 g3+ Kf3 g2 h6 a4 h7 a3 b6 a2 b7 Qd3+ Be3 c1N Nh3 g1B Be2 Qd8 Qe1 Nd7 b8Q Ndf6 Na3 Bd7 Bc5 Nh6 Nc4 Bf2 Ne3 Bh4 Ng2 Ra5 Nf2 Be7 Nd3 Nb3 Rd1 Re8 h8B a1B Bg7 Bb2 Bf8 Ra1 Rh3 Qb6 Rg3 Bc1 Rg5 Qa5 Qb4 Bc8 Rh5 Kd7 e6+ Kc6 e5 Bd8 e7 Ne4 e6 Qa2 Qb8 Na5 Qd6+ Kb5 Re5 Nf6 Re4 Be3 Rc4 Ne4 Bg7 Rh8 Bf8 Rc1 e8B+ Bd7 e7 Rh7 Bb4 Ka4 Ba3+ Kb3 Bc5 Bh3 Bd7 Kc2 e8B Bf5 Bc8 Kb1 Bb5 Rh8 Bba6 Rg8 Bg7 Re8 Bf8 Re5
3rq1N1/2Q1P3/2b2r2/1K3pQr/B1BR2N1/1n1P1R2/NNN2qpn/1k1br3 w - - 0 1 illegal: No possible last move, all moves rejected
N3B2k/1P2q3/3Bn2r/4bRQ1/BKr4P/1nBpqpq1/4BQN1/R1r3n1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 b3 a5 b6 h5 gxh5 a4 Ba3 Bb7 Bc1 a3 Ra2 Bc6 Ra1 Ba4 bxa4 Ra7 Nf3 Ra5 Ng1 Ra8 Kd2 d5 h4 f5 c4 Kf7 e4 g5 h6 f3 b7 d3 Kc3 g4 e5 a2 e6+ Kg6 e7 Kh7 e8B d2 c5 f2 a5 f4 a6 d4+ Kb4 d3 a7 g3 Be2 f1Q Qc2 d1R Nc3 g2 Nb5 Qe7 Nf3 g1N Nc7 Nf6 Ne1 Qf3 Ng2 Qg3 Ba3 Bg7 Qd2 Qee3 c6 Ne4 Qe1 Nd2 Qf2 Nd7 Rh2 Rd8 a8Q Bb2 Qa5 Rc1 Qg5 Rc8 Na8 Be5 c7 Nc5 Rh1 Ndb3 Rh3 Rb8 c8B Ne6 Bcd7 Rbc8 Ba4 R8c6 Bf7 Rhc8 Be8 Kh8 h7 Ra6 Kb5 R8c4 Bd6 Qh2 Rg3 f3 Rg4 Qg3 Rf4 R4c3 Kb4 R3c2 Rb1 a1Q Rf5 Qb2 Ra1 Qc3+ Kb5 Qc7 Kb4 Qe7 Qf4 Kg7 h8B+ Kh7 Qg5 Rc4+ Kb5 Bf4 Bc3 Be5 Bb2 Kh8 Bc3 Nd8 Bc7 Rh6 Bd6 Rc6 Kb4 Ne6 Rb1 Rc7 Ra1 Rc4+
2RqB3/1n2BrPR/1p2R1RP/2bR4/n4QKr/p1k1N1n1/1n6/rn3QN1 w - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Na6 b6 Bc8 b7 Nb8 d4 e5 dxe5 Qh4 b5 Qd8 b6 cxb6 g4 h5 f3 hxg4 Nh3 g3 Ng1 g2 Bf4 g5 Ra6 g4 Bc1 g3 Ra2 d6 Ra1 Bg4 fxg4 Qd7 Be3 Qc7 Bc1 Qd8 c4 Kd7 h4 Kc6 e4 Kc5 Ke2 Kb4 Kf3 a5 g5 f5 e6 f4 c5 a4 e7 a3 e8R d5 g6 d4 g7 d3 e5 d2 c6 Nh6 h5 Nd7 b8Q Ra7 c7 Nf7 c8R Nc5 e6 Nd6 e7 Na4 Bb5 Nb7 Kg4 f3 Qf1 d1N Nc3 f2 Bg5 Ndb2 Rd1 Kb3 Qf4 Kc2 Nf3 g1R Rd5 g2 Nd1+ Kb3 Bc6 Rh6 Ne3 Kc3 Rh2 Rh1 Rh3 g1N Rh4 Ne2 Ng1 Ng3 Rh2 Re6 h6 Re4 Rg2 Rd4 Bh4 Rd1 Bg5 Ra1 Bh4 Qd6 Red8 Qb8 e8R Bc5 Re6 Rh2 Be7 Rh4+ Kg5 Qd6 Rh8 Qc7 Rh7 Qd8 Qb1 f1N Be8 Nd2 Qbf1 Ne2 Kf5 Nb1 Rgg6 Ng3+ Kf6 Na5 Kg5 Rd7 Qb8 Nb7 Qbf4 Rh2 Kg4 Rc7 Bh4 Rf7 Be7 Rh4+
1r3bn1/R3p1bq/1QK1P2N/q4P2/1r1RB1B1/k2N2R1/4bR1p/2bRQ1b1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 d5 cxd5 b5 a4 f5 Ba3 g4 axb5 Qd7 b6 Qd8 b5 Nd7 Bb4 axb4 Qa4 Nc5 Qd1 Ne6 g3 Ng5 hxg5 f4 Rh4 fxg3 Rh3 Kf7 Rh1 Ke8 f4 Kd7 e4 Kd6 Ke2 Kc5 Kd3 h5 f5 h4 g6 g2 e5 b3 Ke4 Kb4 d4 c5 g7 g3 d6 c4 Kd5 c3 b7 b2 b8Q h3 d7 c2 b6 c1B b7 h2 Ra7 Rh4 Kc6 Rh7 d5 Bf4 d6 Bd2 Na3 b1Q Qe1 Rh3 Nc2+ Kb3 Nb4 Bg5 Nd3 Qe8 Nf3 g1B Be2 Bb6 Rf1 g2 Rf2 Qg6 d8R Bf4 Ng5 g1B Bg4 Rh5 Nf7 Bc1 Nh6 Qe8+ d7 Bd4 Qc7 Qa1 b8R+ Bb6 Qd6 Ba6 Rbb7 Qf7 Qc5 Nf6 g8B Rb8 Rc7 Ba5 Qb6+ Ka3 Rcb7 Qg7 Bd5 Bc3 e6 Rh4 Be4 Qh7 Rc7 Bg7 Rg8 Bf8 d8R Qa2 Rg7 Ng8 Rcd7 B3b2 Rg5 Bbg7 Rd4 Qd2 Bgf3 Rf4 Rg3 Qa5 Bg4 Rf3 Nc5 Be2 Rd1 Re3 R8d4 Rb3 Nd3 Rb4
1r1bRnq1/qnR4Q/7B/1NNRb1p1/3K1Pnk/2pn1Q2/1P3R2/1B1Rq3 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 f4 d5 e4 fxe4 h4 dxc4 h5 Bf5 gxf5 Ra7 Qc2 Ra6 Qd1 Rg6 hxg6 Bh6 Nc3 Bg7 Nb1 Bf8 Kf2 e5 Ke3 c5 d4 h5 f6 a4 d5 h4 g7 Kf7 d6 Kg6 b6 c3 b7 c2 f7 a3 d7 h3 Qd4 Kh5 Qc3 h2 Nh3 a2 Nf2 c4 Bg2 Nc6 b8Q Nf6 g8R Bd6 f8R Na5 Nd2 Nb7 Nb3 Nh7 Qc7 Kh4 Bd2 c1N Rf7 Nf8 Rf1 h1N Nd4 Nd3 Rad1 a1Q Nb5 Qe8 d8R Qa7+ Qd4 Qe6 Bb4 Qg6 Re7 Qf7 Rg7 Qg8 Ree8 c3 Ng4 Nhf2 Nf6 Nh7 Nd7 Nf8 Nc5 Ng4+ Ke2 e3 Rf2 e4 Qd5 Be7 Qdc6 Bf6 Rd5 Bd8 Kf1 e2+ Kg1 e3 Be4 Nc1 Bb1 e1B Kg2 e2 Kf3 Bd2 Ke4 e1Q+ Kd4 Nd3 Qe7 Bc1 Qe4 Bd2 Rc7 Bc1 Qd7 Bd2 Qf3 Be3+ Kc4 Bd4 Qf7 B4f6 Qg6 Bfe7 Kd4 Rh6 Qf5 Rb6 Qd7 Bd6 Qe7 Na5 Qf7 Rb8 Qh7+ Nh6 Ba3 Nb7 Qf5 B6e7 Qh7 Nd7 Bb4 Qa8 Na4 Qa7+ Kc4 Bf8 Bd6 Bfe7 Nc5 Bf8 Be5 Bd6 Kd4 Nf8 Bh8 B8e7 Bg7 Bd8 Qg6 Ng4 Bh6 Nc1 Qf5 Nd3 Qh7 Be5+
1r3QRN/1N2N2k/1bp1b1q1/5R1r/3b1q2/1BQ1p1N1/1PN1qbP1/nB1K4 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 dxc4 a4 g5 hxg5 Na6 axb5 Nb8 d4 f6 e5 Nc6 d5 Na5 Bf4 Nb7 Bh2 Nd6 exd6 Nh6 Bf4 Ng8 Be5 fxe5 f4 Kf7 g6+ Kg7 b6 h5 b7 a5 b8Q c6 d7 c3 f5 c2 d6 c1B Qb7 a4 Be2 a3 Qc7 a2 Qa4 e4 Nf3 e5 Kd1 h4 Qd4 e3 Bd3 h3 Nh4 h2 Na3 Qf6 d8N+ Ne7 d7 e4 Qcd6 Rb8 Rf1 h1Q Nc2 Qh2 Nb7 Rh5 d8N Be6 Nf7 Qf4 Qc3 Nd5 Nh8 Nb4 Qdc5 Kh6 g7 Qg6 g8B Bg7 f6 Bd2 f7 Bd4 f8N Be1 Nf3 Bf2 Ng1 Kg7 Ne2 Bg1 Rc1 a1Q Ng3 Qa6 Ra1 Qc4 Ra8 Qa6 Ne1 Nc2 Q5b4 Na1 Bb1 Kh6 Nc2 e2+ Ke1 Qd6 Rf5 Qf4 Qe7 Bb6 Qe8 Bgd4 Qf7 Qgg5 Nfg6 Qgg4 Ne7 Qg6 Qe8 Qd3 Bf7 Kh7 Qf8 Qdf3 Qe3 Qf2+ Kd2 e1B+ Kd1 Qf1 Qa3 e3 Qc3 Bc8 Bb3 Be6 Raa5 Qa6 Rg5 Bf2 Raf5 Qe8 Rg8 Qg6 Ne4 Qc4 Ng3 Qe2+
q1N5/1Pbq4/1Nr2k2/Q4qqr/3p1Nn1/P2n3R/KpRN1Q2/N1n3BB w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 b5 g4 c5 d4 cxd4 gxh5 Ba6 Ba3 axb4 Bc1 b3 Ke2 b4 Ke1 Bb5 cxb5 Rh6 Nh3 Rh7 Ng1 Rh8 Kd2 Kf7 h4 g5 f4 e5 f6 d5 f5 e4 a3 g4 b6 d3 b7 b2 h6 d4 h5 b3 h7 g3 h6 g2 Qe1 Qd5 Ne2 g1Q Ra2 Bd6 Rh3 Nd7 Bg2 Bf8 Bh1 Ke8 f7+ Ke7 f6+ Ke6 Qf2 Bg7 f8Q Qg2 f7 Be5 Qb4 Ngf6 Qa5 Bc7 f8N+ Ke7 Kd1 e3 Nd2 b1Q Rc2 Ne5 Nd7 b2 Nb6 Rhc8 h8N Nfg4 h7 Qd7 Nf7 Qg3 Qg2 Kf6 h8N Qf4 Qg3 Qg5 Ng6 Rh8 Qe1 Rh5 Nd6 Rb8 Ngf4 Rc8 Nf1 d2 Qf2 Rd8 Ndc8 Nd3 Ng1 Re8 Nf3 Re6 Ne1 Rd6 Rc3 Re6 Nc2 Rc6 Na1 Qc2+ Ke2 d1N+ Nd2 Qb1 Rc2 Nc3+ Kf3 Na2 Ke2 Ndb4 Ke1 Nd3+ Kd1 Nc5 Rc4 Qbf5 Rc3 Nd3 Kc2 e2 Kb3 e1Q Rc2 Qee7 Qg1 Nc3 Qf2 Ne2 Ka2 Qdd8 Ndb3 Qee8 Be3 Qdd7 Nd2 Qed8 Qg2 Qf8 Bg1 Qfe8 Qf2 Qed8 Nd6 Qa8 Ndc8 Nec1+
R7/4Q2n/1R2qQBq/8/qK1P1rRn/2Bq1PNR/1p1p2Rr/q3k1rN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 g5 Ke2 gxh4 Kd2 c4 Ke1 Bh6 Be2 d5 Bf1 Bf4 Bb2 Bd6 Bc1 Bc5 dxc5 d4 Bh6 d3 Bf4 Be6 Bg5 Bd5 Bc1 d2+ Ke2 Be4 Qe1 Ra6 Qd1 Bd3+ cxd3 Ra8 g4 Kf7 a4 Kf6 c6 Kg5 f3 Kf4 d4 Kg3 a5 b5 f6 h5 f7 e5 f8Q e4 g5 e3 g6 b3 a6 b4 g7 b2 c7 h3 c8R b3 a7 h4 Qc5 h2 Na3 b1Q Rc7 h3 Qe7 c3 Bb2 c2 Kd3 Kf2 Kc3 c1Q+ Nc2 e2 Qd6 e1Q Ne2 Qd7 Ra6 Qa4 Qf6 Nh6 g8R Nf5 Rb6 Nh4 Rg4 Nd7 Ng3 Qe6 Bd3 Nf8 Rcg7 Nh7 Bg6 Raf8 a8R Qba1 Rg8 Qcb1 Ne3 Qbf5 Nef1 Qfb5 Qc2 Ke1 Qe7 Rf4 Qf5 Qbe2 Qff6 Qea6 Rg1 h1R Rg2 Rg1 Nh1 h2 R2g3 Q6b5 Rh3 Qbe2 Nfg3 Qea6 Nf2 h1Q Rg7 Qh2 Nfh1 Qhe2 Rgg8 Qeb5 Rg7 Qg5 Rgg8 Qh6 Rg7 Q4b5 Rgg8 Qd3+ Kb4 Q6a2 Bc3 b2 Rg7 Qa4+ Kc5 Qac2 Nf1 Rg2 Rh2 Qca4 Rg3 Qg5+ Bf5 Rg1 Rgg2 Nf8 Nfg3 Nhg6 Rh4 Rh5 Rh7 Rh6 Rg4 Rh2 Rh3 Qh6 Be4 Nh4 Bg6 Qc6+ Kb4 Nh7 Rc8 Qd7 Ra8 Qda4+
b1R1qK2/2QR2n1/1B2P3/2RR1n1b/1b4pb/b2nQ1b1/B2RpP1k/1N2N3 w - - 0 1 legal: proof: e4 h5 a4 g5 c4 e5 b4 a5 c5 b5 axb5 a4 c6 f5 g4 hxg4 b6 Ra7 b5 Rb7 cxb7 Rh6 d4 Re6 Qb3 fxe4 Qf3 e3 Qe2 e4 Qd1 Re5 dxe5 Qf6 Qe2 Qe7 Qd1 Qd8 Ke2 Ke7 h4 Ke6 h5 Kf5 h6 d5 h7 c5 h8R d4 e6 g3 Bg2 Kg4 Bd2 a3 Bc3 a2 R8h7 d3+ Kf1+ e2+ Ke1 c4 Kd2 e3+ Kc1 d2+ Kc2 Bb4 Bd4 c3 Kb3 c2 Kc4 c1B Bc5 Bca3 Nf3 e1N R1h5 Nd3 Qc1 d1B Rd7 Nf6 Ne1 Qg8 Bd5 Nc6 b8Q g2 b7 g1B b6 Nd4 Qc7 Qg6 b8R Bh2 b7 Nf5 Bb6 Bg3 Ra8 Be2 b8R Ne8 Ra5 Neg7 Rc5 Bb7 Rc8 Ba8 Kb5 Bf3 Bc4 e2 Qe3 Nh4 Bd5 Kh3 Bc4 Kh2 Bb3 g4 Rhd5 Be4 Kc4 Nf4 Kd4 Nhf5+ Ke5 Bh4 Rd2 Bec6 R7d5 Be8 Bc4 Ng3 Kd6 Nd3 Qg5 Bf7 Ke7 Be8 Kf8 Bf7 Rd6 N3f5 Qe3 Bg3 Rd7 Be8 Nc3 Bf7 Rb1 a1B Rbd1 Be8 Nb1 Bf6 Ba2 Bh4 Rd4 Qh6 Rd7 Bh5 Rd5 Qg6 Rd7 Nf4 R2d5 Nd3 Rd2 Qe8+
2k3Bq/q2p2q1/bQN4P/1RB5/2q3nP/B3K1N1/1pB1n1RQ/1n3Bnr w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 d4 c5 Ba3 cxd4 Bc1 h5 gxh5 f4 Bb5 e5 Ba6 b5 Qd3 b3 Ke2 Bb4 Qd1 Bd2 Bb7 Be3 Bd5 Ra6 Bc4 Rf6 Ke1 Rf5 exf5 e4 Bf1 Bd2+ Ke2 e3 Kd3 e2 Nf3 Ke7 Ng1 Be3 fxe3 Kf7 Kd2 Ke8 a4 e1N c4 g5 h4 d3 f6 b4 c5 g4 c6 f3 h6 b2 e4 g3 e5 b3 a5 f2 a6 g2 c7 Ne7 f7+ Kf8 a7 Nc2 a8B Nbc6 e6 Ng6 Na3 Ke7 Ne2 b1Q Rg1 Rg8 Ng3 Nge5 Nc4 Ng4 Ne5 N6d4 Qe2 Na3 Be4 Ba6 c8Q Qa2+ Qc2 Qb2 Qe3 Ne2 f8B+ Ke8 Nc6 Qg7 e7 b2 Qb6 Qc7 Ra2 Qa7 Bd5 Qh8 Bc4 Rg6 Bg8 Qg7 Rh1 g1N Rh2 Rf6 Rg2 Rf3 Nf5 Rh3 Ng3 Rh1 Ra1 Nf6 Ke3 Nb1 Ra5 d2 Rb5 d1Q Bd2 Qh8 Bb4 Qd5 Bc5 Qc4 Qf5 Qf7 Qh3 Qfg7 Qh2 Nec3 Bd3 f1Q Bc2 Qc4 Ba3 Qa4 Bc4 Qb4 Bf1 Qc4 Bc5 Nce2 Ba3 Kf7 e8B+ Ke6 Bfc5 Kd5 Beg6 Ke6 Bgd3 Kf7 Nd4 Ke8 Bh7 Ng4+ Ke4 Qcf7 Bg8 Qf4+ Kd3 Qfc7 Ke4 Kd8 Nc6+ Kc8 Kd3 Nf6 Ke3 Qf4+ Kd3 Qc4+ Ke3 Ng4#
2Q1Q2n/1pqRNnP1/1B1NR1B1/N7/7q/rP1b1k2/N2qN1pq/1n1n2K1 w - - 0 1 legal: proof: f4 e5 c4 exf4 b3 d5 cxd5 a5 Qc2 a4 Qc3 a3 Qb2 axb2 g4 f5 h3 g5 Bg2 f3 Bf1 f4 h4 Be7 Bg2 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 g4 Rh2 Qd6 Rh1 Bg5 hxg5 Qd8 Kf2 Kf7 a4 h5 d4 c5 e4 c4 a5 c3 g6+ Kf6 a6 Kg5 f6 h4 a7 h3 a8Q c2 g7 h2 f7 Nf6 f8Q Ng8 e5 Nd7 d6 Qb6 e6 Ne7 Nc3 Qc7 d5 Ng6 e7 Nde5 e8N Bf5 d7 Nf7 Ra6 b1N Be3 c1Q d8N Rh5 d6 Ngh8 d7 Rh6 Ra2 Ra6 Re2 Ra3 Na2 Q1c3 Bg2 g3+ Kf1 Kg4 Qc8 f2 Be4 Qf6 Nc6 Qh4 Na5 Bg6 Kg2 f1N Rd2 Bh7 d8N+ Bf5 Rd7 Bh7 Nh3 Bg6 Rg1 f3+ Kh1 f2 Nd6 Bh7 Bb6 Ne3 Re1 f1Q+ Ng1 Qe2 Ndc6 Nd1 Qfe8 Qd2 Ne7 Bf5 Re2 Kf4 Kg2 h1Q+ Kf1 Q1h2 Re1 Be6 Bg6 Bf5 Re6 Bd3+ Ne2+ Kg4 Bh7 Kf3 Bg6 Q2h3+ Kg1 g2 Qed8 Q3g3 Qe8 Qgh2#
n3N3/1QBb1N2/NrP1rpN1/3n1n2/1b1pQ1R1/3P2B1/4pqR1/1KNr3k w - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 e5 axb5 h5 g4 e4 gxh5 Ne7 f3 Ng8 Kf2 exf3 e3 Rh6 Bd3 Rh8 Be2 fxe2 Ke1 Ke7 c4 Kf6 h4 Ke5 e4 Kf4 e5 Kg3 c6 Kg2 e6 a5 c7 d5 b6 g5 h6 g4 d3 a4 Kd2 g3 Kc2 d4 h5 a3 e7 a2 e8N Ba3 c5 Nf6 h7 Qd6 c6 Ne4 b7 Qd5 h6 Bc5 Nh3 Ng5 Rg1+ Kh2 Bf4 Qg2 Nc3 Ne6 Ng5 Na6 b8N Bd7 c8Q Ng7 Bc7 Nf5 Qb7 Bb4 Qc1 Qf3 Qf4 Qf2 Qe4 Rg8 h8B Rg6 h7 Re6 Bhe5 f6 Rae1 a1N+ Kb1 Nc2 h8N Nce3 Ngf7 Nd5 Na2 Ra7 Ng6 Ra8 Bcd6 Nac7 Na6 Rb8 Nc1 Na8 Ref1 Bc8 Bc7 Bd7 Qc8 Rb6 Qb7 Qe1 Rf4 g2 Rg4+ Qg3 Rf1 g1R Rd1 Rh1 Rg1 Qf4 R1g3 Rd1 Rg2+ Kh1 Bed6 Qe3 Bg3 Qf2
3Q2KR/3n1n1P/1pBN2n1/Rr4BB/2b3b1/q1p3P1/1p1Qr1r1/B3NBk1 w - - 0 1 legal: proof: g4 a5 b4 axb4 c4 d5 cxd5 e5 f4 exf4 Qc2 h5 gxh5 g5 Qb3 g4 Qd1 g3 Qc2 g2 Qd1 Bc5 Qc2 Bb6 Kd1 Bh3 Qb3 Bf2 Kc2 Na6 Kd3 Bg4 Qd1 Bc8 Kc2 Nb8 Qe1 Ra6 Kd1 Bg3 hxg3 Nf6 Qf2 Ng4 Ke1 Nh6 Qc5 Ra4 Qc2 Ra8 Qd1 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 d4+ Kc4 a4 c5 a5 b3 h6 f3 a6 b6 a7 f4 d6 f2 d5 f3 d7 Ne7 Ke6 Rh7 d6 Ng6 Bg5 Qf8 Nd2+ Kd4 e4 c4 e5 Rg7 Bf6 Ke3 Ra5 Rf7 Ne4 Re7+ Kd5 Re6 d8Q Nd7 Rh2 Re8 e6 Qe7 Bb2 c3 Ba1 Qf8 e7 b2 Bd3 f1R Ke6 f2 Nf3 g1N Ne1 Nf3 Qd2+ Kd4 Rh4 Nfe5 Rh2 Rg1 Bf1+ Nd3 Rh4 Rg2 Rhh5 Nde5+ d7 Nf7 Qc1 Nde5 Nd6 Bb7 Qd1+ Ke3 Rh2 Rc8 a8B Bf3 Rh4 Rc5 Bc6 Rb5 Kf6 Qg8 Rh1 Qh7 Qc2 Bg4 Rh5 Rh8 e8B Qg8 Rh2 Qf8 Qd1 Qe7+ Kg7 Rf8 Ne4 Qa3 Nd6 Nfh8 Bf7 Re8 Rh5 Re7 Kg8 Re6 h7 Re7 Rf5 Re6 Be8 Re7 Rf8 Nhf7 Qa8 Re6 d8B Nd7 Bf6 Re7 Qd8 Ree5 Bd3 f1B Bg5+ Kf2 Qd2+ Bfe2 Bc4 Kg1 Bd3 Bd1 Bf1 Bde2 Bf3 Nfh8 Bc6 Nf4 Bh5 Nf7 Kg7 Bc4 Rh8 Ree2 Kg8 Ng6
1B4K1/1r1pnR2/2nr1N2/1kB2P1R/r2Rn1Q1/2q4b/PNp3pR/1Q2Rb2 w - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 e5 dxe5 a4 b3 axb3 c3 b2 e4 f5 e6 b5 e5 b4 Bg2 b3 Be4 Bb4 cxb4 fxe4 Kd2 c5 Kc3 g5 f4 e3 h4 e2 b5 e1R f5 c4 Kd4 g4 e7 c3 b6 g3 b7 g2 h6 Re2 h5 Na6 b8B Rh7 Na3 b1N Nf3 b2 Be3 Rf7 h7 Rc2 h8Q Ra7 h6 Re2 h7 Rb7 Nd2 Qa5 Qg7 Ra7 h8R Bb7 Ne4 Nb4 Nc4 Nd2 R8h5 b1B R1h2 Bd3 Qe1 c2 Rd1 Bd5 Nb2 Rf6 Qgg3 Kf7 e8R Rb7 Rf8+ Ke7 e6 Rh6 Ke5 Nc6+ Kf4 Qa3 Kg5 Qc3 Rf7+ Kd8 e7+ Kc8 Rb1 Rd6 Nf6 Bf3 Kg6 Bg4 Kh7 Bh3 Bc5 Re4 Qg4 Ra4 Rd1 Bf1 e8R+ Nd8 Bba7 Kc7 Bb8+ Kc6 Re3 Ne4 Rd4 Ne7 Qb1 Kb5 Re1 Ndc6 Kg7 Nc8 Kg8 N8e7+
Kb1RB3/Nq2n3/2bB1kPP/N6Q/1Q3p2/rb4p1/1r1N2pq/1n2NN1R w - - 0 1 illegal: No possible last move, all moves rejected
6Q1/r1br1N2/rnK2P1p/2N2k1p/1R1Rq3/2pQ1b1r/N5BP/1n1NNB2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 a5 b4 axb4 Bb2 Ra6 Bf6 Ra7 Bg5 Ra8 Bh6 gxh6 Ke2 Kf7 Kd3 Kf6 Kd4 b3 Kc5 e5+ d6 h5 f4 h6 d4 b2 g4 e4 g5+ Kg7 f6+ Kg6 f7 e3 d5 c6 f5+ Kh7 g6+ Kg7 b6 Kf6 b7 e2 g7 e1R Qd3 Ra2 Nc3 b1R Nf3 Qe7 Nd1 Rg2 Ra4 Re6 Rb4 Ra1 Ne1 Ra7 Kb6 Rge2 d7 c5+ d6 c4 d8Q Nd7+ Kc6 c3 b8N R2e3 Na6 Rh3 Rd4 Re5 Nb4 Rd5 Na2 Nb6 d7 Ba6 Qe8 Qe4 d8N Bd6 f8N Bc7 Nfe6 Bc8 Nc5 Bb7+ Kb5 Ra6 Nf7 Rh7 Rg1 Ba8 Rg2 Bb7 Rb2 Ba8 Rbb4 Bb7 Nd6 Kg5 Qe6 Nf6 g8B Qg2 Qde4 Re5 Qb1 Bb8 Qe8 Ne4 f6 Nd2 Qd3 Nb1 Ne4+ Kf5 Ng5+ Be4 Qf8 Rha7 Bd5 Bc7 Nf7 Qf3 Qg8 Qf4 Qd2 Bh1 Bf3 Rd5 Qd3+ Qe4 Kc6 Bg2 B1e2 Bf1 Bh1 Bg2 Bf1 Bf3 Bhg2 Rd7+
knQB1r2/rr1n4/1P1RNPR1/1B3b2/1q2p2K/Np1bN1NN/3p3Q/6r1 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c5 d4 cxd4 b4 axb4 a3 b3 Bh6 b2 Bf4 Rh7 Bc1 Rh8 Bh3 b5 Qd2 e6 Bf1 b4 Qe2 b3 Qd1 Bb4+ axb4 Kf8 Ba6 Kf7 Bf1 Ke8 f4 g5 Kf2 d5 Kg3 Kd7 h4 Kc7 c4 Kb7 h6 g4 h7 e5 b5 e4 h5 d3 f6 d4 f7 d2 f8N d3 c5 Nf6 f5 Ra3 h6 Ra8 b6 Nc6 Na3 b1R Ne2 Ne5 c6+ Kb8 c7+ Kb7 Qc2 d1B Kh4 g3 Ne6 g2 Bg5 g1R Ng3 d2 Bb5 Re8 h8Q Nc4 h7 Bd7 c8N Rc1 Ne7 Na5 Nd5 Ra7 Ne3 Qb8 Qc8+ Ka8 Rh2 Rf8 Rf2 Ng8 Bd8 Nc6 Qe5 Be2 h8N Bd3 Ng6 Rc3 Ngf4 Nf6 Nh3 Rc2 Qec7 Ra2 Rf4 Rb7 Rc1 Ra1 Rg4 Ra2 Rg6 Ra1 Nac4 Ra6 Na3 Raa7 Neg5 Be6 Rc3 Nd7 f6 Bg4 Ne6 Bf5 Qe5 Nb4 Rc6 Na6 Qcc7 Qc8 Rd6 Nab8 Qc1 Qc2 Qf4 Qb2 Qc8 Qc3 Qf2 Qd4 Qh2 Qb4
qrk5/2p4B/Nn4b1/p2b2P1/N2BNp1K/n4NRr/NPr1Q3/R5rQ w - - 0 1 illegal: No possible last move, all moves rejected
QB2N3/P3NrpN/3r1P2/2r1p1Nq/q4p2/1NKnq1n1/1R6/R1b1kBQ1 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 f5 e4 f4 f3 b5 Kf2 Bf5 exf5 Ra3 Ke2 Rxf3 Ke1 Rf2 h4 Kd7 d4 Kd6 a4 e5 f6 c5 a5 c4 a6 c3 h6 b3 a7 b2 h5 b4 h7 c2 h6 b3 Nh3 Qd7 Ng5 Rg2 Nd2 b1R Rh2 b2 Nb3 Rg4 Kd2 Na6 Kc3 Ne7 Rf2 Rg8 h8N Nb4 h7 Qa4 Ng6 Rg2 h8Q Nf5 Nh7 Ng3 Ne7 Nd3 Be3 c1Q+ Rc2 Kd7 d6 Ke6 d7 Rd2 d8N+ Kd6 Qg4 Qd1 d5 Rc1 Qg5 b1Q Bb6 Qh5 Ne6 Qba2 Nc7 Q2a3 Qh4 Rdd1 Qh2 Rd2 Qg1 Rdd1 Ng6 Be7 Ba5 Rf8 Qg8 Rf7 Qa8 Qe4 Bb6 Qaa4 Ba5 Qe3 Ne8+ Kd7 d6 Ke6 d7 Kf5 d8N Kg4 Ne6 Ba3 Neg5 Rd2 Ne4 Kf3 Ne7 Rdd1 Bc7 Rd2 Bg2+ Ke2 Bf1+ Ke1 Bb8 Nb4+ Kc4 Rd6 Neg5 Nd3+ Kc3 Rb1 Nc1 Rb5 Nb3+ Bc1 Rb2 Rc5+
1B2q1qk/p3Rbqq/P5B1/1N2P1qQ/2rN1pQ1/Q3p2R/2Q1Kn2/r3Q3 w - - 0 1 legal: proof: b4 d5 h4 c5 bxc5 Bd7 h5 Bh3 Nc3 Bc8 e4 d4 Nd5 Qa5 Ne3 dxe3 Bc4 Qb6 Bf1 Qd8 f4 f5 h6 e6 g4 g6 g5 Bg7 hxg7 Nd7 Nf3 e5 Ng1 Ndf6 gxf6 exf4 a4 Kf7 c4 h5 d4 b5 a5 f3 c6 g5 a6 g4 e5 f4 c5 f2+ Ke2 h4 c7 h3 c6 h2 d5 g3 d6 b4 d7 g2 Rb1 b3 Ba3 b2 Bd6 Rh7 Qe1 Kg6 f7 Qg5 f8Q Nf6 d8Q Ne4 Nf3 g1Q Nd4 Be6 c8N Bf7 g8Q+ Rg7 Rd1 b1Q c7 Qb3 Qde8 Rb8 Bh3 Rb4 Bf5+ Kh6 Rb1 Rc4 Bg6 Qb8 Rb7 f1Q+ Kd1 Qh3 Ke2 Nf2 Qfe7 Qhg2 Q7f8 Bd5 Qge6 Q2g3 Qg4 Be6 Qef7 Qa8 Qff5 Bf7 Qe7 Rh7 Qc2 Kg7 Qh5 Kh8 Bf5 Kg7 Qg6+ Kh8 Qec3 Qh6 Qa3 Qf8 Qh4 Qg8 Qgh6 Q3g7 Bg6 Qg5 Qg3 Be8 Qhh3 Q7h6 Qg1 Rf7 Qe1 Qgh4 Qhf5 Qhg7 Qg5 Qhh7 Qh5 Qb8 Rg1 h1Q Rg3 Qh4 Rh3 Qhf6 Nb6 Qbd8 c8Q Qde7 Qcg4 Qg5 Bb8 Rf6 Rc7 Bf7 Na8 Qee8 Re7 Rb6 Nc7 Rb1 Ncb5 Ra1
4B1bB/R1b3nN/1nbp1prp/3qPQ2/3N1Q2/3B2p1/RK2PB1B/1r1k4 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 b5 axb5 Nh6 h5 Ke7 g3 Qe8 g4 f6 fxe5 Qxh5 g5 Qf7 g6 Ng4 gxf7 Nh2 Kd2 Ke6 b4 Kf5 c4 Kf4 Kc2+ Kg3 c5 Kf2 c6 g5 b6 a5 b7 d3+ Kb2 d6 b5 h6 c7 g4 b6 d2 Qa4 Ke1 Nf3+ Kf2 Ng5 Ke1 Ra2 d1B Nd2 Bb3 Bg2+ Nf1 Nh7 Rg8 Nf3+ Kd1 Nd4 Be7 f8B Bd8 Bc6 Bd7 c8B Bc7 Bf4 Rg6 Bh2 g3 Bg7 Be8 Bh8 Nd7 Qc4 a4 b8Q Ra6 b7 Rb6 Qb4 Bg8 Qa8 Rb5 b8B Nb6 Ba7 Bd7 Ba6 a3+ Ka1 Be8 Qc8 Bd7 Qc4 Rb2 Bcb5 Bc6 Qf5 Rb4 Qc3 Rb2 Qcf3 Rb3 Q3f4 Rb2 Bg1 Ne3 Rh4 Rb3 Bh2 Rb4 Bd3 Rb2 Bab5 Rb4 Q5e4 Nf5 Rg4 Ng7 Qef5 Bcd5 Be8 Bc6 Rb2 a2 Rc2 Rc4 Kb2 a1Q+ Kb3 Qa5 Ra2 Rc1+ Kb2 Qd5 Rh4 Rg5 Rg4 Rh5 Rg6 Rh4 Rg5 Rg4 Rg6 Nh5 Rg7 Rg6 Rd7 Ng7 Rf7 Nc8 Bc5 Nb6 Re7 Bb8 Rea7 Rb1+ Ka3 Rg5 Nb5 Rc1 Kb2 Rg6 Bf2 Bc7 Nd4 Rb1+
4Nk2/nQq5/N6b/1pb3p1/q1NP1pNr/P3Br2/BRQ1p3/1rRKN3 w - - 0 1 illegal: No possible last move, all moves rejected
bBBbB3/7k/rq3R1N/q1q5/2n1P1bP/1r1rB1Q1/1R1Q3q/1qKN1n1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 f5 h4 Kf7 e4 Kg6 b4 a5 c4 d5 c5 g3 e6 f4 b6 d3 b5 f3 e7 f2 e8B+ Kh7 b7 g5 b6 d4 c6 g2 c7 g4 Be2 f1Q Qc2 g3 Qc4 a4 Ra3 Nf6 Bb2 Ng4 Qb4 Be7 Bh5 Qf6 Qc3 Nd7 b8Q Bb7 c8B Ra6 Rh3 Ba8 b7 Ne3 Bf7 Ne5 Ra1 a3 Kc1 a2 Bd1 N5c4 Qa5 Nf1 Bdg4 Qfb6 Ne2 g1Q Qc7 g2 b8B Qh2 Ng3 g1Q Bf3 Qc5 Bh1 d2+ Kd1 Qdd5 Bc1 Bd8 Nc3 Rf8 Rb1 a1Q Qe5 Qa2 Be8 Rf3 Rb2 Re3 Kc2 d1R+ Bd2 Rb1 Nd1 Rd3 Nf5 Qg6 Rf3 Qgb6 Qc3 Qaa5 Nh6 Qg8 Rb4 Rb3 Kc1 Qgg2 Bg5 Qga2 Rf8 Rh3 Qb2 d3 Rf6 Rf3 Qg3 d2+ Kc2 Rfd3 Be3 Qb7 Nc3 d1B+ Kc1 Qbb5 Qd2 Bg4 Nd1 Qbb6 Rb5 Ra3 Rb1 Rab3 Rb2 Qb1+
6K1/1bNR2P1/1n3r1n/1QRB1nRN/2n1nB1Q/b1bPrq1R/k3q2R/q7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 b4 c5 g5 h5 b6 a5 b5 a4 b7 a3 d6 a2 b6 f3 g6 f2 d7 f4 Ke6 f3 Kf7 h3 g7 h2 Bh3 f1Q e4 f2 e5 h4 e6 Ra3 e7 Qe8+ Ke6 Nh6 Bg4 h3 Qe1 Kb3 Nc3 c4 Nd5 c3 Ne2 c2 Nc7 Qg2 Ng3 f1N Nh5 Qf3 Qg3 Ne3 Qh4 Nc4 d3 Ra6 Bd2 c1B Bf4 Bb2 Rag1 a1Q Bf5 Rh7 Rg5 Bc3 Be4 Ka2 Bd5 Rh8 Rc1 h1N Rc2+ Ka3 Rb2 h2 Rb5 Nf2 Rc5 Ne5 Kf6 h1N d8R Ng3 Rd7 Ngf5 Ke6 Kb2 Kf6 Ne4+ Ke6 Nbc6 b8R Nc4 b7 Nb6 Ra8 Ka3 b8R Na5 Ra7 Bb7 Rc8 Qd8 e8Q Nac4 Rb8 Ka2 Raa8 Ng4 Kf7 Rh7 Kg8 Qe7 Rbd8 Rh6 Rdc8 Ra4 Raa5 Rf6 Rab5 Qe5 Rb1 Rb4 Rh1 Rb2 Rb8 Re2 Rh3 Re3 Ra8+ Kb3 Ra2 Bd6 Rc6 Ba3 Rah2 Qe7 Rc5 Qe5 Rh1 Ka2 Qb8 Qad1 R1h2+ Qde2 Qa7 Qd4 Qa4 Qe5 Qb5 Ngh6+ Kh8 Ba5 Kh7 Qa1 Kh8 Bc3 Kh7 Nf7 Kg8 N7h6+
3K3q/4PR2/1B1B4/1PbQ1Nnb/2rB1n1b/2qrqbRB/3Bk1N1/1Qrb4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 c5 g4 f5 d4 h5 g5 a5 g6 h3 d6 h2 d5 h4 d7 f3 Ke6 f2 b6 a4 g7 a3 b5 h3 b7 f4 d6 a2 Qd2 f3 Qg5 Ne7 g8Q Ng6 Qe5 Qa5 Bg2 f1R e4 Kd3 Qb2 c4 e5 f2 Be3 c3 Ne2 c2 Qb3+ Qc3 Ba7 c1Q Nd2 Na6 b8B Rh4 Nc4 Qe3 Nd4 Rc1 Rg1 h1Q Nf5 f1B Bd4 h2 Qb1+ Ke2 Bh3 Nf4+ Kf7 Rg4 Ke8 Nc7+ Kd8 Ra3 e6 Bb7 Qf7 Bf3 Rg3 Rh4 Qg8 Bh5 Qf7 Qa8 Qg8 h1B e7 Bh6 Qd5 B1f3 Nb2 Bg7 Nd3 Bf6 Ne1 Rg4 Ng2 Bh4 Kc8 Rb3 d8B Nce6+ Kd7 Ng5 B8b6 Ra3 Kd8 Rb3 d7 Ra3 Qbe4 Rb3 Rb1 a1B Ba5 Bb2 Bab6 Qa1 Bd6 Ba3 Ba5 Qab2 Ra1 Bc5 Qb1 Qcd3 Bd2 Qdc3 Ra6 Ra3 Bc7 Rb3 Rf6 Qa1 Bd6 Qa8+ Kc7 Qh8 d8B Qcd3 Qa1 Ng6 Nh6 Kf2 Nf5 B1e2 Qb1 Bd1 Rf7 Ke2 Bb2 Rgc4 Bd4 Nf4 Kd7 Qc2 Bb6 Rd3 Kc7 Qc3 Kd7 Qh6 Kd8 Qh8+
3Bq3/3Qb1Q1/r3qNBn/K4Q2/nPr1P3/1k1N2Qb/q5Q1/r1R1nbrR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 a5+ Ka4 f5 e4 c5 g4 f3 b6 f2 b3 c4 g5 h3 g6 h2 g7 h4 b7 h3 Bh6 c3 Bg5 f4 Qe1 f3 Be2 f1R Bd1 f2 Qe2 c2 Bc1 Be7 Nf3 Rg1 Nc3 f1B Ne5 Na6 Bg5 c1N Qg2 Nd3 Rc1 Ne1 Bh5 Nh6 Nd3 Nc5+ Kb5 a4 g8Q a3 b4 a2 Bg6 a1R Qg7 R8a6 b8Q+ Kd7 d6 Qe8 Nd5 Na4 Bf6 Rf8 Bh4 Rf2 Bg5 Rc2 Nf6+ Ke6+ d7 Rc4 Qa8 Kd6 d5 Kc7 Qa7+ Kd6 Qe3 Kc7 Bh4 Kd6 Nb2 Ke5 Qeg3+ Kd4 d6 Ra8 Nd3 Ra6 Rd1 Kc3 Rc1+ Kb3 Bg5 Rac6 d8Q Ra6+ d7 Rc3 Q2f2 Ka3 Nh5 Bd6 Qa5 Rcc6 d8Q Bc5 Qdd6 Bf5 Qdc7 Kb3 Bd8 Be7 Qg4 Ka3 Qd7 Rc3 Qfh4 Ka2 Qgg5 Rc4 Nf6 Kb3 Qhf4 Rg4 Rg1 h1Q Rc2 Qg2 Rc1 Qa2 Qd2 h2 Qh4 Rg2 Qg3 h1Q Qdf2 Qh4 Rh1 Rg1 Qgg2 Qh5 Qc7 Qd1 Qcg3 Bh3 Qff4 Qg4 Qe5 Rb6+ Ka5 Qe6 Qf5 Ra6+
2nn4/r1Nqn3/1bQ5/3nR3/nRPqNB2/1BBb4/3B1P2/r1KQnknB w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 b4 Ke5 c4 Kf4 f6 h5 g5 e5 f7 d5 g6 a5 g7 a4 b6 e4 b7 h3 b5 a3 b6 h4 Qa4 h2 Qc6 h3 Qb5 d3 Nc3 d4 Na4 a2 Qb3 e3+ Kd1 d2 Ne2+ Kf3 Qc2 Nc6 b8Q Rh7 b7 Bc5 f8B Qd7 Qc7 Nd8 b8B Bb6 Qc3 Ne7 Kc2 d1N g8B d3+ Kb3 d2 Kc2 Nb2 Qa3 d1N Qb4 Nc3 Nf4 e2 Bd2 e1N+ Kc1 Ncd5 Rb1 a1Q Nc3 Na4 Ne4 Qd4 Qbd6 Rg7 Rg1 h1N Ne6 h2 Qcc6 Ng3 Bh7 h1N Rb4 Ngf5 Bg2+ Ke2 Nc7 Nhg3 Bh1 Ra6 Rg2 Kf1 Bc3 Rf7 Bh6 Bb7 Bg5 Nc8 Bgd2 Nfe7 Rh2 Ra7 Rh5 Rf6 Re5 Ne2+ Kb1 Ng1 Kc1 Rf3 Bf5 Rg3 Bg4 Re3 Bd1 Re2 Bb3 Ba8 Bg5 Ra2 Bgd2 Ra3 Qf6 Bb7 Qf3 Ra2 Qd1 Ra3 Bc2 Ra1+ Bb1 Bc5 Rf5 Ba8 Nb5 Nh3 Qh6 Kg1 Nf6 Bc6 Bbf4 Bb6 Nc7 Ne3 Re5 Kf1 Qg6 Bf3 Ne4 Ng1 Qf6 Be2 Qc6 Ra3 Ba2 N3d5 Bb3 Bd3 Qh5 Ra2 Qd1 Ra1+
BBnR4/2b1nqP1/2nB1N2/n1n1PQ1r/1b3bR1/k1B1rK1b/3NQ3/1b3B2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 g4 Kd6 d4 h5 e4 c5 b4 f5 b6 a5 b5 f3 b7 h4 g6 f4 g7 a4 d5 c3 g5 c2 b6 h3 g6 h2 Qe1 c4 Ne2 Kc5 d6 a3 d7 a2 Nbc3 Kb4 Bb2 c1N Bh3 Qc7 d8B Ra4 Rb1 a1B Bf5 Nd3+ Kf1 f2 Kg2 f1B+ Kf3 Nc6 b8B Bh3 b7 Nc5 Nb5+ c3 Nd6 Qf7 Bdc7 Rh5 Rd1 Nge7 Rd2 c2 g8B c1B Rg1 h1N g7 Nf2 Bc3+ Ka3 Nd4 Bab2 Bfh7 Bcf5 Nb3 Rd4 Rg4 Rc4 B3a5 Be5 Ne8 Bd6 e5 Bb1 Rd3 Nfe4 Bc3 Be3 Qe2 Bd2 B7a5 Bc7 Nf6 Nd6 Be4 Ndc8 Rd8 Be3 Bd5 Bc1 Nd2 Re4 Kf2 f3 Bab4+ Ka4 Kg3 f2 Kf3 f1N Bh7 Ne3 Bf5 Nb3 Bd6 Nc5 Bfe6 Ka3 Bd7 Na5 Bb5 Nac6 Ba7 N7f5 Qg2 Ba5 Bc7 Nc4 Nf1 Bf4 Nd2 Nd7 Ba6 Bfb4 Bd6 Nc5 Qf1 N8b6 b8Q Nfe7 Qc8 Nb8 Qf5 Nbc8 Ba8 Nbc6 Bab8 Bc7 Qd1 N4a5 Bf1 Ng8 Qe1 Nge7 Qe2 Re3+
B1R3n1/4r1b1/3B4/RnP1NB1b/2qnKnQ1/n1B2P2/kr3Bn1/qN2qQ2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 a5 c4 d5 b4 e5 g4 h5 f6 Ke6 b6 d3 b7 a4 c5 e4+ Kf4 h3 f7 h4 f3 h2 g5 d2 b5 h3 b6 e3 g6 e2 g7 e1Q Bd3 d4 Bc4+ Qd5 Na3 d3 Qb3 d1N Qb4 d2 Ra2 Nc3 Bb2 d1N Ne2 Ne3 Rg1 h1N Qb3 h2 Qc2 Ng3 Qd1 h1Q Nb1 a3 Nc1 Ra7 Nd3 Rh2 Ne5 Nb5 Bc3 Nc6 b8B Re7 b7 Ncd4 Bd3 Qc4 Bf5+ Kd5 Bd6 Rb2 b8B Bd7 Qd3 Be8 Qf1 Qh8 Ra1 a2 Rg2 Qh1 Rh2 Qg1 Rh8 Ng2+ Kg5 Nf6 g8B Bg7 f8Q+ Bf7 Qd8 Ngh5 Qd7 Nhf4 Bgh7 Bg6 Rc8 Bh5 Bbc7 Ng8 B7a5 Qe4 Be1 Qh1 Bf2 Qe1 Bc3 Qd3 Nf7 Kc4 Ne5+ Kb3 Be4 Qde2 Qg4 Qc4 Bhf5 Qg1 Ba8 Qh1 Nd2+ Ka3 Rd1 a1N Nb1+ Ka2 Rd2 Nac2 Rd3 Nb3 Rd4 Qe6 Ra4+ Nca3 Ra5 Qf7 Bd7 Qc4 Kf5 Qd2 Be6 N3d4+ Ke4 Qg1 Bf5 Qc1 Nd2 Qa1 Nb1 Qh1 Qd3 Qc1 Qf1 Qe1+
1nB1R1Qn/2P1N1rq/n2kqQ1n/3b2NK/nPRR3R/2B1r3/1r1n4/2R3b1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 a5 f4 h5+ Kg5 e5+ f6 h3 b4 h2 g4 e4 c4 d3 b6 d4 f5 h4 b7 d2 c5 h3 c6+ Kd6 c7 d3 Be2 a4 Bb2 e3 Nf3 a3 Qe1 d1R Ng1 d2 Qh4 a2 Nf3 Rg1 Nd4 d1N Bd3 e2 Qh6 e1N Nf3 Ne7 f7+ Ng6+ f6 Qd7 Bc2 Ra3 Be4 Nc3 Kh5 Na4 g5 Nd3 Bc3 Qe6 Bf5 Ndc5 Bg4 Be7 f8R Nca6 f7 Rg3 Rc1 h1Q Re8 h2 f8R Rh7 Rf6 Rg2 Rf4 Nh8 g6 Rg7 Rc4 Rb2 Ng5 Bf6 Bh3 Bd4 Bg4 Bg1 Bf5 Nd7 b8R Bb7 Rbd8 Bd5 Bg4 Qhe4 Bf5 h1N Bh3 Rg8 g7 Nf2 Qf6 Qd3 Rh4 Ng4 Rc2 Nh6 Rc1 Rf8 g8Q Rf7 Rc4 Rg7 Bg4 Bc5 Rh1 Qh7 Rh4 Kc6 Bh3 Ndb8 Bf5 Be4 Rdd4 Bd5 Bd2 Rab3 Nc3 Kd6 Rc1 a1N Bg4 Ra3 Be1 Nb3 Bh3 Kc6 Bg4 Nd2 Bf5 Be4 Nd5 Kd6 Ne7+ Bd5 Bg4 Re3 Bh3 Nb3 Bc3 Nd2 Qff7 Qf6 Bc8 Qe6 Qf6 Rf3 Rdf4 Bg1 Rfd4 Re3
3r2q1/RP1kNnnr/1Br1R1K1/BB1r4/B2rb1r1/1bBQ3N/3Q3P/b4q2 w - - 0 1 illegal: No possible last move
1r5q/2N2QRB/4BQ2/2PBnP2/2Nb1Br1/KB1R2b1/2brr3/bbqn2k1 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Kd2 Kf7 a4 Kg6 c4 Kf5 Kc2 d5 Kb2 b5 f4 e5 a5 h5 a6 e3 g4+ Ke4 c6 e2 c5 e1B c7 b3 a7 h4 g6 d4 g5 d3 g7 h3 g6 d2 Qg4 Ke3 Qe6 Kf2 Ra3 d1R Qd7 e4 Ne2 h2 Ra2 b4 Nec3 e3 Bd3 e2 Ra6 Nc6 Nb5 Nf6 g8Q Rb8 a8B Ng4 g7 Ne3 Qdf7 Rh4 Bb7 Bf5 c8B Rg4 N1a3 Bc3+ Kb1 e1B Nd6 b2 Ka2 b1R Ndc4 Ba1 Nb5 b3+ Ka3 Rb2 Nc7 Re2 Qh8 b2 Rf1+ Kg2 Rf3 h1Q Bc2 b1B Bb3 Qd2 g8B Bfc2 f5 Bg3 Ba8 Qd8 Bh7 Bfg7 Rb6 Bgc3 Bd7 Ne5 Rg6 Bd4 Bd5 Qg1 Qhf6 Qh8 B7e6 Qe1 Rg5 Kg1 Rg7 Rd3 Ka4 Qd2 Ka3 Nd1 Re3 Nf2 Rf3 Qe1 Bf4 Rdd2 Rd3 Qc1+ Ka4 Rg8 Kb4 Nd1 Ka4 Rd8 Kb4 Rb8+ Ka4 Nb2+ Ka3 Nd1+
2rn3N/Kn1Q1B1R/1Q1bPQ1b/bRN5/1q1bb1P1/B1Q3q1/5n1Q/2rn1k2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 b4 Kd6 d4 Kd5 g4 Ke4 d5 a5 e3 f5 b6 h5 d6 c5 g6 f3 b5 f4 d7 a4 g7 h4 b7 a3 b6 h3 Qd6 h2 Qd2 a2 Qa5 c3 Qa7 c2 Qa4+ c4 Bh3 Kd3 e4 c3 e5 Nc6 b8Q Nf6 g8Q Bd6 b7 Qe7 d8Q Bf5 e6 Ne4+ Kf1 f2 Bg2 Nc5 Ne2 Be4 Ba3 c1B Qg7 c2 Nbc3 Bd2 Rb1 c1B Rb5 a1B Qd7 Rh7 Qa5 Nd8 Na4 Bd4 Qf6 Rg7 Qb6 Ba5 Q8c7 Rc8 b8Q Ncb7 Nc5+ Kd2 Bf3 Rg8 Kg2 f1N Qcc6 Ne3+ Kf2 Rg5 Bg2 f3 Nf4 Re5 Ng6 Rh5 Nh8 Nd1+ Kf1 f2 Qcc7 Kc2 Ke2 Bh6 Qcc6 Rh3 Qcc7 Rc3 Bf3 Bg6 Bc6 Rc4 Kf3 Kd2 Be4 Bh7 Bg6 f1Q+ Ke4 Ke1 Kd5 Rc1 Bf7 Qg1 Qcc6 Bc2 Kc4 Qf8 Qcf3 Be4+ Qc3+ Bd2 Rb1 Ke2 Kb5 Qg3 Ka6 Bh6 Ka7 Qe7 Rb5 Qf8 Rf1 h1N Rg1 Nhf2 Rh1 Bhe3 Rh7 Bh6 Qh4 Kf1 Qh2 Be7 Qe5 Bd6 Qf6 Bc7 Na6 Qb4 Nc5 Bd6
1q2bK2/1RPRN1BR/8/kq1bb1qn/2BRQ1P1/3N1rqb/2Q1R3/1n2rq2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 Kh5 Kb6 c4 e5 f4 a5 b4 d3 f6 d2 f7 h3 g3 a4 f5 d4 f6 a3 Rh2 e4 Bb2 a2 Qf3 d1Q Rh1 e3 Rh2 e2 Qd5 e1Q+ Re2 h2 Qe4 h1Q+ Nh3 d3 Nc3 Bd6 f8Q d2 f7 Ne7 Kh6 Qa4 Kg7 d1B Nf4 h5 Nd3 Bh3 g4 h4 Rc1 Qc7 Qc8 a1Q f8R Nd5+ Rf7 Rf8 Rd7 Rf3 Kg8 Bf4 Kf8 Qg3 Rh7 Bc2 Rd1 Qc1 Qcf5 Be5 c5+ Kb7 b6 Ka6 b5+ Ka5 c6 Qg5 b7 Nd7+ Kf7 Qd6 b8R N7f6 b6 Nh5 b7 Qb5 Rd8 Ba4 Rd7 Re8 b8R Re6 Rbb7 Qb8 c7 Re8 Na2 Nc3 Nab4 Nb1 Nd5 Re6 Ne7 Qhg1 Bg2 Qf1 Rdd2 Qb3 Rd4 Be8+ Kf8 Qb5 Bh1 Bg2 Ba1 h3 Rd7 h2 Bb2 Bd6 Bg7 Bh3 Bg2 Bf4 Qc5 h1B Qc2 Qfe1 Bf1 Be5+ Nf4 Qc1 R2d4 Qd1 Rf2 Qe1 Bc4 Qf1 Re2 Rf2 Qg6 Bd5 Qgf5 Rf3 Nd3 Bf6 Rf2 Re2 Qe4 Re1 Re2 Be5+
1r1N1rB1/RN3r1b/5bR1/B2NQ3/nQn5/1r1qn1K1/1PqN1bnP/2N1k3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kd6 d4 g5 b6 f5 b7 a5 Qa4 c5 Nh3 g3+ Kf3 g4+ Kg2 f3+ Kg1 f4 Be2 c4 Bf1 c3 Ra2 g2 Kf2 g1R Qd1 a4 Ra1 g3+ Ke1 a3 Qd2 a2 Ng5 f2+ Ke2 f3+ Ke3 g2 Kf4 c2 Be2 f1N Qd1 f2 Qd2 Ne3 Qa5 f1R+ Nf3 Bf5 Bc4 Ne7 Nc3 Nd7 Qb4+ Nc5 Kg3 Nc6 Bd2 c1Q Ne2 Qc2 Nc1 Na5 b8N Rf2 Na6 Be7 Nc7 Rb8 Be1 Re8 Nd2 Bf6 Bb3 Rgf1 Rg1 Bh7 Bc4 Rf8 e5+ Ke7 e6 Kd6 Bb3 Nac4 e7 Re2 e8Q Rf7 Rh1 g1B Qe4 Ng2 Qe5+ Kd7 d6 Kc6 d7 Na4 Nd5 Rf8 Qh5 Re7 Qe5 Ref7 Qbd6+ Kb5 Qde7 Qc8 d8N Qd7 Nb7 Rf5 Ne4 Rf2 Ba5 Qf5 Nd2 Qfd3+ Kg4 Rf3 Qb4+ Ka6 Nc3 Rh3 d5 Re3 d6 Rf3 Rb1 a1N d7 Re3 Nd5 Rh3 Qbe7 Kb5 d8N Bb6 Rf1 Bg1 Rf5 Rf3 Rg5 Re3 Rg6 Rh3 Nd6+ Kc5 Qg5 Kd4 N6b7 Re3 Qb4 Rh3 Nf4 Ke3 Nd5+ Kf2 Qh5 Ke1 Qe5+ Re3 Ba2 Nb3 Ra1 Nd4 Bb3 Nf5 Qf4 Re6 Qe5+ Nfe3+ Kg3 Rb6 Ra2 Rb5 Bb6 Nc5 Ra7 Na4 Ba5 Rb6 Qbe7 Rb4 Ba2 Rb3 Qa3 Qb1 Qb4 Qbc2 Nc5 Nd6 Rc7 Rc3 Nb6 Rg7 Bg8 Rb3 Nd5 Rgf7 Ra7 Nc4 Ncb7 Bf2+
3r1n1k/Q4Q2/KB1B1qP1/1N3Bb1/2nP1nB1/1Rrn1qNb/1rr3q1/2RB4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 h5 d4 a5 Kd2 f5 Kc3 Kf7 e4 Kg7 b4 c5 e5 f3 g6 f4 g5 f2 b6 f3 b7 h4 b5 a4 b6 a3 e6 a2 e7 h3 e8B h2 Bb2 Qf6 Bg2 f1N Qc1 f2 Bf7 Nd2 Qf1 Be7 Be6 Nd7 b8Q Nf8 b7 Rh3+ Bf3 Kh8 Qa7 Bd8 b8B Ne7 Na3 Nd5+ Kc2 c3 Kd3 c2 Bc3 c1R Bg4 Be7 Rb1 a1R Ba5 Rc2 Ne2 Raa2 Bb6 Rab2 Nb5 Nc4 Bd6 Bd7 Rg1 h1Q Ng3 Rd8 Bd1 Qg2 g7+ Kh7 g8B+ Kh8 Qe2 f1Q g6 Q1f2 Qe6 Q2f4 Re1 Qff3+ Re3 Bc8 Qf7 Bd7 Ne4 Rg3 Rc1 Be6 Bh5 Bh3 Bg4 Na5 Ra1 Q3f5 Qc7 Qh4 Nc3 Re2 Qe8 Rf3 Qb7 Qf7 Ng3 c4+ Ke4 Bf6 Qa7 Qb7 Be6 Nf4+ Nd5 c3 Bef5 c2 Qf7 Rd2 Rb3 c1N Rb1 Rdc2 Ra1 Na2 Rc1 Be7 Ke5 Rfc3 Nc7 Qbf3 Ne4 Nh5 Kd5 Nc4 Kc5 Nb4 Kb5 Nf4 Ng3 Nbd3 Ka6 Qg5 Nb5 Bf6 Be6 Qf5 Bd7 Bg5 Be6 Qe5 Bef5 Qf6
1Q2r2R/nR2bn2/3bbP1N/k1r2R2/2P2r1N/1R1rB1bq/BQ3b2/4b1RK w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 c4 a5 f4 d5 Kf2 Kd7 Kg2 Kc7 b4 Kb6 f6 g5 h5 g3 h6 a4 f5 e4 f7 a3 f6 g4 h7 a2 Qa4 e3 Rh2 d3 Nh3 e2 Qb3 e1B Nc3 d2 Nf2 d1R Qa3 d4 Qb2 d3 Qa3 d2 Nce4 Be6 Ng5 Ra5 Kh1 Be7 f8R Qc8 Nf3 Nc6 Qb2 Nh6 Nh4 Nf7 Bd3 Na7 Bb1 Rg8 Rd8 Re8 h8R Bd6 Rh3 g2+ Kg1 Qd7 Rb3 Be7 Kh2 g1B+ Kh1 g3 Ng4 Bgf2 Nh6 Qd3 Rd5 g2+ Kh2 g1B+ Kh1 Bh2 Rf5 Kb7 b6 Ka6 b7 Rc5 b8Q Bhd6 b5+ Ka5 b6 Qg3 Qe5 Qh3+ Qh2 Bdg3 b7 Bgd6 Bb2 Rc1 Bd4 d1R Be3 Rd4 Rf4 Rcd1 Rf5 Qg4 Qe5 Rf4 Qb2 Rd3 Qa8 Qe2 b8R Qg4 R8b7 Bg3 Qb8 Bgf2 Bc2 Qg3 Rc1 a1B Bb1 Qg4 Ba2 Bg3 Qb1 Bd4 Qb2 Qh5 Rc2 Qf3+ Rg2 Qh5 Rg1 Qg4 Bc1 Bdf2 Be3 Qh3#
1r6/1Rq3B1/1Q2R1Q1/6BN/1n1qB1qn/n1kb1p1P/3rb1PB/KrN1b1B1 w - - 0 1 illegal: No proof kernel
r3R1b1/B2K3r/B4R1Q/2bkq1N1/4Nn1P/6q1/nQBpBBqP/b3n1r1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 b5 axb5 exf4 Nf3 h5 Ng1 h4 gxh4 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 f5 b4 a5 e4 g5 b6 d5+ Kb5 g4 c4 f3 e5 d3 c5 f2 b7 d4 c6 f4 c7 g3 Nd2 g2 Qf3 a4 Nh3 g1Q Qe3 f3 Be2 f1Q Kb6 a3 b5 a2 Nf2 Qfg2 Qh6+ Kd5 e6 Nc6 b8B Qe7 Ba7 Nb4 Nh3 f2 Ne4 f1N Be3 d2 Nhg5 d1R Bf2 d3 Rb1 Qe8 e7 Be6 c8B a1B Kc7 d2 b6 Nf6 b7 Ne3 b8Q Nec2 Bca6 Na2 Rb6 Rh7 Rc6 Qe1 Qb2 Nh5 Rf1 Bf7 Rf6 Bg8 Rg1 Qb8+ Kd7 Qbg3 Rf1 Nf4 Re6 Bf7 e8B Bc5 Re7 Bg8 Bg6 Rh8 Re8 Rb1 Bed3 Qee3 Bh5 Ne1 Bhe2 Qd4 Bc2 Qe5 Be3 Nf3 Rf2 Rg1 Rf1 Ne1 Rf3 Nh5 Rf6 Nf4 Bf2 Rh7+
b1r2QB1/3QB3/r2nr1Pb/pB1nB3/3KNPB1/qn3b2/3N2Rr/3R2rk w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 c4 Ke5 b4 Kf4 c5 d5 f3 Kg3 g6 a5 b6 h5 b7 e5 g7 h4 f4 d3 Kc3 e3 b5 d4+ Kc4 e2 g5 e1R c6 e4 b6 e3 c7 d2 g6 e2 Nf3 h3 Ne5 h2 Ra4 d3 Bb2 Nh6 g8B Ra6 Rb4 Qe7 Rb5 Nf5 Bc3 Qa3 Bb4 Bh6 Nf3 Nd6+ Kc5 Nd7+ Kd5 Nc5 b8Q Nb3 Nc3 Bb7+ Ke5 Ba8 c8B Kf2 b7 Kg3 Rd5 Kf2 Rg1 h1R Rg5 Rh2 Bg4 Kg3 Qf8 Kf2 Nd4 Kg1 b8B Kh1 Ne4 Rg2 Qa1 d1N Nf3 d2 Qd4 Ne3 Bc5 d1B Nfd2 Rh2 Bc7 Nc8 Be7 Nd6 Bb8 Rg2 Qa7 Rh2 Rd4 Nd5 Qd7 Bc2 Rd3 Rb1 Rd4 e1R Bb5 Bd1 Rd3 Bf3 Bc7 Na1 Kd4 Rg1 Bb8 Rbc1 Bc7 Rcc6 Bb8 Nf7 Be5 Nd6 Nc4 Rc8 Rd1 Rh7 Ncd2 Rf7 Bf5 Rf6 Rg2 Re6 Bg4 Nb3+
bbR1R1Q1/k3r3/6B1/n3Pn2/2P1nB1r/n1qN1Qp1/1Qq1K3/2n1NQbQ w - - 0 1 illegal: No possible last move, all moves rejected
1K3nN1/1Rb1NBk1/rRQB4/1bR1p3/3R2nr/2PbQ2q/n5P1/n1Rqn3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 d5 b4 h5 f4 e5 c3 a5 f6 h3 f5 h2 b6 a4 b7 a3 b5 h4 b6 h3 Ne2 a2 Nd2 Bd7 Ba3 Rh5 Qc1 Nh6 Bd6 Qc8 Nf4 Ra6 Ng6 Rh4 Ne7 Ng4 Ne4 Be8 Qe3 Nd7 Rg1 h1N b8R h2 b7 Ng3 Rc1 h1N Be2 a1N Rgd1 Bg7 Bf3 Kf8 f7 Ne2 Nf6 Bh6 Nfg8 Bg5 Rd2 Kg7 f8R Bg6 Rd8 Nf8 Be4 Qd7 Rdc8 Bh7 Rc5 Qe6 Rdd1 Nhf2+ Kd2 d3 f6+ Kf7 Bf3 d4 Bd5 Bf5 Ra8 Be4 b8R Bh7 Ra7 Be4 Rcb1 Nc1 R8b6 Na2 Rbc1 Bg6 Rab7 Bh7 Ke1 d2+ Ke2 Bd3+ Kf3 Bb5 Bc4 Nd3 Ke4 Ne1 Bd5 d3 Bb3 Nd7 Bd5 Kf8 f7 Kg7 Bb3 Qf5+ Kd5 Qf3+ Ke6 Qh3 Bc4 Nf8+ Kd5 Bd7 Bb3 Bf5 Kc6 Bd7+ Kc7 Bb5 Kb8 Bf6 Rc2 Bg5 Rdc1 d1B Rd2 Be2 Rdd1 d2 Bc4 Ng6 Be6 Bed3 f8Q+ Kh8 Qe8 Kg7 Bf7 Nf8 Qc6 Bf6 Rb1 Bg5 Rdc1 d1Q Rb4 Bf6 Rd4 Bg5 Nc8 Bd8 Nce7 Bc7+
2k1bbn1/1r1rB2B/2nq1NN1/1b1PnRN1/4R1q1/1Q2NpP1/1b1K1Q2/2N4b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 b4 a5 e4 h5 d6 f5 g3 c5 e5 f3 e6+ Ke8 e7 Kd7 e8N a4 d5 c4 b6 f4 b5 c3 b7 a3 b6 c2 Qd2 a2 Ne2 h3 Na3 h2 Nc4 h4 Ne3 h3 Ba3 Nc6 b8Q c1N b7 f2+ Kd1 Nd3 Nc1 Nde5 Bd3 f1B Bh7 f3 Qf2 Ba6 Kd2 Ra7 Bb4 Qc7 Nf6+ Kd8 d7 Bb5 Rb1 a1B Ba3 Qb6 Rb4 Bb2 Re4 Qc5 Re1 h1Q Rf4 h2 Rf5 Qd6 Re2 Ke7 d8N Bd7 Ne6 Be8 Ng5 Qf1 Neg4 h1B Re4 Qh3 Ne3 Qg4 Bg6 Bc4 Nh5 Kd7 Nf4 Qe7 Bc5 Rh6 Bh7 Rd6 Ng6 Qf6 Bb4 Re6 Be7 Rd6 Qa8 Kc7 b8N Bb5 Nd7 Rb7 Qa2 Kc8 Qb3 Qe6 Nf6 Rdd7 Ref4 Qd6 Rb4 Be2 Re4 Bb5
3n4/8/bqbQrk1p/2N2Bq1/Nr1PQb1b/KnP3Q1/3nQBQR/1R2b3 w - - 0 1 illegal: No proof kernel
4NB1N/b2r3k/2N1P2q/R4b2/4pqn1/K1Pq2bQ/R2N1rNb/nQ3b1B w - - 0 1 illegal: No proof kernel
1bNknr1B/2n3p1/1Q6/nNKb2nR/2b1R1qn/1Bq3Qr/2PBBP2/4B3 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 e5 Ke3 d5 h4 a5 b4 d4+ Ke2 a4 b6 g3 b7 d3+ Ke3 g2 b5 a3 b6 a2 h5 d2 h6 Qh4 c6 Bd6 c7 Be6 c8B Bc4 h7 Na6 b8B Kd8 b7 Nc7 Be6 Qg4 Rh5 Nf6 Ne2 g1N Nec3 Nf3 Qe1 d1B Nd5 Nh4 Qa5 Ne8 Ne7 Bf3 Na3 Rf8 Rb1 a1N h8B Nb3 Qb6 Na5 Be2 Bg2 Nc8 Bh1 Kd2 e3+ Kc3 Bhd5 Rb4 e4 Kd4 Rf3 Bg8 Rh3 Bd2 Bf4 Be1 Bd6 Bd3 e2 Nb5 Be5+ Kc5 e3 Ba7 Bf4 b8Q Bg3 Bd2 e1N Be2 Nef3 Be1 Ng5 Ra4 Ba2 Re4 Bac4 Qe6 Be5 Qbb6 Bh2 Qe5 Rb8 Qg3 Ra8 Bd3 e2 Qg2 Bc6 Ncd6 Be6 Kb4 Ke7 Qe3 Nf6 Bc3 e1Q Be2 Rf8 Nc8+ Kd8 Qc5 Bd6 Qg3 Na8 Bf7 Qa1 Be1 Ne8 Bb8 Bc7 Qb6 Bb3 Kc5 Qc3+ Bfc4 Bd5 Ne7 Kd7 Nc8 Bf4 Be5 Ba2 Bd4 Bb8 Be3 Nac7 Bc1 Kd8 Bcd2 Qb2 Bb3 Qe5 Ba4 Bac4 Bb3 Qc3
R3r3/2Q1RP2/1NB1PBqr/4b1Bq/2bBrnk1/2qNp3/1Qq2B1K/n1q5 w - - 0 1 illegal: No possible last move, all moves rejected
1B2q3/2BnpB2/b1RR1q2/P1NK1Nn1/1rQ4Q/1r4BP/2r1rb1n/r5kB w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Ke4 b5 a4 g5 c4 d3 f4 g4 h3 b3 h6 b4 c5 b2 h7 g3 c6 d2 c7 b3 Nf3 g2 Qe2 d1R Nc3 b1R Nh4 g1N Bg2 b2 Qc4 Re1+ Kd5 Ba6 c8B Bh6 a5 Qe8 Bb7 Nf3 Na4 Nh2 Nc5 Re2 Rd1 d6 Bh1 Nd7 Be3 Rc8 Bf2 Rb8 Ra3 Ra1 Rc3 b1R Bg3 Rb3 Bc6 Bg5 Ba4 R3b4 Bb3 Nh6 Rcc1 Rg8 h8Q+ Rg7 Ba2 Nf7 Qh7 Bh6 Rc2 Ng5 Rc3 Kf7 f6 Rb3 Qhe4 R8b4 Nf5 Kg6 f7 Kh5 f8B Rg8 Bg7 Rh8 Kc6 d5 Be5 d4 Kd5 d3 Bc7 Bg7 Rcc1 Bd4 Rc2 Bf2 Qed4 d2 Qf6 Ngf3 Qh4+ Kg6 Bb8 Ng5 Qd3 Ne4 Ke6 Nd6+ Ne3+ Ne4 Na4 Rh6 Rc4 Be1 Qc3 Rh5 Rc6 Ra3 f5+ Kh6 Bc4 Rab3 f6 Kg6 f7 Rc5 Bgc7 Bg3 f8B Be1 Qhh8 Kg5 Bh6+ Kh4 Bd5 Rcc4 Nc5 Bg3 Qhd4 Bf2 Bhf4 Ng5+ Kf5 Rba4 Bf7 Rcb4 Qcc4 R1a2 Rf1 d1Q Re1 Qd2 Rd1 Qc3 Qe4 R4a3 Rdd6 Rac2 Qed4 Ra1 Be5+ Ne4 Ke6 Qb2 Bf4 Ng5+ Kd5 Qc3 Qe4 Qf6 Be5+ Qf4 Qh7+ Kg3 Qh8 Bg1 Qh5 Kf2 Qh8 Qf6 Nf5 Kf1 Qhh4 Bf2 Bg3 Kg1
3q1QNn/2PBbR1B/Pk1B2r1/1np1B3/BQ3N2/5q1r/b2q4/n1KRq1q1 w - - 0 1 illegal: No proof kernel
r1N2QB1/b1pKRN2/1N1q2nn/2Pn1rrr/3B3N/1PQ1q2R/3b1r1N/1k6 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 h3 fxg4 Ra6 g3 Ra1 g2 Na3 g5 Nb1 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd4 Rh3 Qd7 Rh1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 e5+ Kc4 h5 d4 h4 d5 h3 f5 e3 b6 e4 Kb5 Ke5 c4 e2 b3 e1N g5 h2 f6 a4 g6 e3 b7 Ke4 d6 a3 d7 a2 g7 e2 f7 Nf3 Be3 e1B Qc1 Bc5 f8Q Ba7 c5 Rh5 Bd4 Nh6 g8N Rf5 Ne7 Ne5 Nc8 Nbc6 b8N Ng6 Bc4 Nb4 Qc3 Nd5 Kc6 Bd2 Nf3 g1Q Nh4 Qe3 Re1 Qe7 d8N h1R Nf7 g2 Nd7 g1R Ndb6 Rgg5 Re2 Qe5 Kd7 Rhf1 Rh2 R1f2 Rh3 Qf6 Na3 Rh5 Re1 a1R Nc2 Qe5 Re2 Rg1 Ne1 Rgg5 Nef3 Qd6+ Ke8 Nb4 Be6 Nd5 Nh2 Qe5 Kd7 Qf6 Qa5 Kd3 Re1 Kc2 Re2 Kb1 Qc3 Qf4 Re4 Nde7 Bc4 Nd5 Re7 Qe3 Ne5 Ndf4 Bg8 Nd5 Nf7 Qd6+
1kN2Q1r/pNq1b3/QB6/R3BKbr/b2B1brB/2bP3q/n2PB3/2R4n w - - 0 1 legal: proof: f4 b5 g4 d5 a4 e5 axb5 exf4 g5 d4 g6 d3 cxd3 hxg6 Nf3 g5 Ng1 g4 Kf2 Kd7 e4 g5 b4 c5 h4 Kc7 e5 f5 h5 g3+ Kf3 g4+ Ke2 g2 h6 c4 h7 g3 Kf3 c3 e6 c2 e7 Bd7 e8Q Nf6 Ne2 g1B Ra5 g2 Nd4 Bh2 Nb3 g1B Na3 Be7 Be2 Be3 Nc4 Na6 b6+ Kb8 b5 Ng4 b7 Nb4 Ba3 c1B Qf8 Nf2 Nc5 Bb2 Nb6 Na2 Qa4 Bc3 Rc1 Nh1 Nc8 Qc7 Bb2 Rg8 h8B Rg4 Bf6 Be8 Bh4 Bg3 Kg2 f3+ Kh3 f2 Ba1 f1R Bb2 Bcf6 Bd4 f4 Qc4 f3 Qe6 Rg6 Qa6 Beg5 Kg4 f2 Kf5 Bgd6 Ne4 Bdf4 Ned6 Rd1 Bb6 f1Q Bd4 Qc2 Bb6 Bc3 Bd4 Kc7 b8B+ Kd7 b6 Rh6 b7 Bb2 Qh8 Rh5 Bc7 Qh3+ Bg4 Qc3 b8B Rg1 Nb7 Qc5+ Bce5 Bc3 Bc7 Rb8 Bb6 Qc7 Ncd6 Rg2 Nc4 Kc8 Qg7 Ba4 Ncd6+ Kd7 Qf7 Rbh8 Qg8 Qh2 Bd1 Rg4 Be2 Qh3 Qf8 Qd8 Bbc5 Kc7 Bb6+ Kb8 Nc8+ Qc7
N2kn3/3q1nR1/QnqN4/nrb1Nb1B/R2r3r/1N1PQ1q1/1N2pB1P/3K4 w - - 0 1 illegal: No possible last move, all moves rejected
2Qb1n2/3nbK1k/r2b3r/5q2/1Q6/1QP3qB/1QN2P1p/BbRrRQqN w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Ke4 e5 Kd5 h5 g4 a5 b4 e4 b6 h3 b5 d3 g5 e3 f6+ Kh7 b7 h4 f7 e2 b6 e1B Be3 d2 Bg2 a4 Rh2 a3 Ne2 a2 Nf4 Ne7+ Kd6 Ng6+ Kd5 Bd6 f8Q Qc7 Bd4 Ra6 Rh1 h2 Na3 h3 Rc1 a1B Nh5 Be7 Bg7 Be5 Ng3 B5d6 Ba1 Bd8 Qf6 Nf8 Qb2 Qc3 Rg1 h1Q Qb4 Qh2 Nh1 Qf6 c3 Qg3 Qdb3 h2 Bh3 Qg6 Nc2 d1Q+ Nd4 Bd2 Nc2 B6e7 Re1 d6 Q3c4 Nbd7 b8Q Bf4+ Qd3 Be5 b7 Qf5 Qb2 Qdg4 Qf1 Qg1 Qc7 Q4g3 b8Q Bb7+ Qc6 Ba8 Q8b4 Bf4+ Kd4 d5 Qc8 Bfd6 g6+ Kh6 g7 Kh7 Qfb5 Bc6 Q5c4 Bb5 Qf1 Bd3 Ne3 Bb1 g8Q+ Kh6 Qe6+ Kg7 Nc2 Rh6 Qe4 Kh7 Q4b3 Qg4 Kd3 d4 Kc4 d3 Qd4 Qff4 Kd5 d2 Qdc5 Qg4g3 Qcb4 Ng6 Ke6 d1R Bf5 Qfg5 Bh3 Ngf8+ Kf7 Qf5+
5N1b/Bk3Nb1/4r1R1/1B1qQr1R/bKn1pn2/nq2P1qn/N2N3P/1Q2N3 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Qg3 hxg3 f4 Kd7 b4 e5 d4 a5 Kd2 g5 Kc3 c5 f5 Kc7 d6+ Kb7 b6 g2 d7 c4 b5 e4 d5 a4 e3 a3 d6 g3 f6 a2 f7 g4 Na3 Nc6 Nb1 Na5 Nh3 g1Q Nf2 g2 Nd2 g3 Bd3 Ra6 Bb2 Nf6 Kb4 Rh5 Bd4 Qd1 Rg1 Bg7 f8N c3 Bf1 c2 Nd3 c1N Ne1 Ne2 Rc1 a1B Rc5 Nc3 Rg5 Rh3 Rh5 Nb1 Be2 Na3 Bd3 Kb8 b7 N5c4 Bf1 Qb6 d8N Bd7 Nf7 Rh4 Bc5 Rf4 Bd4 Bc6 d7 Rf5 d8N Bd7 Bc5 Qc6 Bd3 Qd5 Ba7+ Kc7 Be2 Re6 Nc6 Bb2 Nce5 Qc2 N5d3 Qb1 b6+ Kc6 Rh4 Nh5 b8Q Nf4 Qe5 Kb7 Rh5 Ba4 Nc1 Bh8 Na2 Qbd3 Rf1 g1N Rf3 g2 Rg3 Qc2 Rg6 Ngh3 Bd3 g1Q Bf1 Ka6 b7 Qg3 b8Q Qb1 Qe8 Kb7 Qb5+ Nb6 Qd3 Nbc4 Qc2 Qd1 Qb1 Ba1 Qd6 Bag7 Qe5 Nd6 Bb5 Ndc4 Ng2 Qc2 Ne1 Qb3+
br1R4/1Q3Nn1/3n2qN/4NRqQ/1P6/nkP3Kb/3B1pn1/qNb1NB1r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 e4 Kd6 h4 Kc5 c3 a5 h6 g5 b3 d5 h5 f5 b6 g4 b7 a4 h7 f3 e5 f4 h6 d3 e6 a3 b4+ Kc4 e7 g3+ Ke1 g2 Kf2 d4 e8Q a2 Qe7 Nc6 b8N Ne5 Bd2 Nf6 Ne2 g1Q+ Ke1 Qg6 Kf2 Nh5 Qh4 Nf7 Qg4 Qdg5 Qf5 Ng7 Nc6 Bb7 Ne7 Rb8 Ng1 Nd6 Be1 Ba8 Bg2 d2 Ng8 d3 Bf1 Be7 Qc2 d1B Rh5 Be2 Qd1 d2 Qd7 Bf6 Qb7 Bd8 Qa4 d1Q Qab5+ Kb3 Bd2 Qc1 Na3 Qb2 Rd1 a1N Nb1 Nc2 Qf5 Qa1 Qh3 Qe7 Rf5 Na3 Qh5 Bc7 Nf6 Bd8 Ng4 Qeg5 Ne5 Bb5 Rf6 Bd7 Rf7 Bg4 Rf5 Re8 h8N Rg8 Nhf7 Rh8 h7 Bb6+ Ke1 Be3 Bb5 f2+ Kf1 Rbe8 Kg2 f1N Ngf3 Rb8 Ne1 f3+ Kh1 f2 Kg2 Ng3 Bf1 Ne2 Nh6 Nf4+ Kh2 Ng2 Kg3 Rhd8 h8N Rdc8 N1f3 Rd8 N8f7 Rh8 Be1 Bc1 Rd4 Ndc4 Rd8 Nd6 Bd2 Re8 Nd3 Re1 Nf3e5 Rd1 Be2 Rf1 Ne1 Rh1 Bf1 Bh3+
RKrb1q1q/2N5/Q4r1n/R2b2QP/n2N1P1N/4b2N/2pr1nB1/knB2N2 w - - 0 1 illegal: No possible last move
RK1rq3/2N2Q2/2r3B1/2n4p/3RRQ2/r3RBbP/b1rNRP1k/nn1qb3 w - - 0 1 illegal: No possible last move, all moves rejected
5nN1/1b1R1RQq/1bB1QNN1/5N1p/1n1BN1nP/K2q2b1/1P2rb1r/1r3k2 w - - 0 1 legal: proof: e4 b5 g4 f5 a4 fxg4 axb5 c6 bxc6 d5 Ba6 dxe4 Bc4 Ba6 Bf1 Bc8 d4 Kf7 Kd2 Kf6 Kc3 Kf5 Kb3 e5 c4 a5 f4 g5 c7 g3 c5 a4+ Ka3 e3 d5 Ke4 d6 e2 c6 e1Q h3 g4 f5 g2 f6 g3 f7 Bb7 c8Q Nf6 c7 Nbd7 Bb5 Ng4 Ne2 Kf3 Nd2+ Kf2 Bc6 g1B Nf4 e4 Ra2 e3 Nh5 e2 Nf6 g2 Nde4+ Kf1 Qd4 Qh4 Be3 e1R Ra1 Be7 f8N Rb1 Ng6 Nf8 Qe6 h6 Rh2 Bf2 c8N g1B Ra2 Bg3 Rd2 B1f2 Qde5 Qd7 Bd4 Bd8 Nce7 Bb6 Nf5 Re8 Rd3 Qh7 d7 Qg5 d8N Qe3 Nf7 Re7 Kb4 a3 Ra1 a2 Ka3 h5 h4 Rg8 N7h6 Re8 Rc3 Qd3 Qc7 Rg7 Nhg8 Rd7 Rb3 Rd5 Qg7 Re5 Ng5 Re2 Nge4 Rc8 Ba4 Rcc2 Bc6 Rd1 Rb1 a1N Rc1 Rcd2 Rc5 Rc1 Rd5 Rb1 Rd7 Nc2+ Ka4 Nb4 Ka3 Qc2 Rf3 Qd3+ Bc3 Rbe1 Nfh6 Rb1 Nd5 Rdd1 Rff7 Kg2 Ndf6 Rh1 Nf5 Kf1 Bd5 Qd2 Bd4 Rh2 Bc6 Qd3+
2R1r3/4rbnn/5p1n/KP3R1R/2RqR2Q/NB3Pr1/2rbb2N/kB1Q1q2 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Be3 Ba6 cxd5 Qd7 d6 Bc8 d5 Qd8 Bd4 exd4 Kd2 Kd7 g4 h5 b4 c5 e4 a5 g5 h3 b6 f6 f3 h4 b5 d3 Kc3 d2 g6 h2 b7 c4 g7 h3 e5 a4 Kb4 c3 Ne2 a3 Ra2 c2 Ra1 c1R Qa4 d1B Bg2 a2 Nd2 Nh6 g8B Rh7 Nb1 Re7 Ng3 Rc2 Na3 Be2 Rac1 a1Q Bf1 Qb6 Bh7 Qf2 Bd3 Qfd4+ Bc4 Na6+ Ka5 Nc5+ Kb4 Rb8 Ka5 Ne4 Bb3 Ng5 Qb4 Nh7 e6+ Kd8 d7 Kc7 Qe1 Kd6 d8R+ Kc5 d6 Bd7 Qf2 Be8 d7 Bf7 Qe1 Rc8 b8R Bg7 Rg8 Rce8 d8Q Bf8 Rh8 Bg7 Rg1 h1N Ra8 h2 Rc8+ Rc7 e7 Bf8 Nf5 Ng3 Ne3 h1R Ng4 Nh5 Nh2 Ng7 Qh4 Qb1 Rg4 Rg1 Rf4 Rg3 Bh3 Qba1 Bf5 Qb1 Ka6 Kb4 Be4 Kc3 Ka5 Kb2 Rf5 Qc5 Qd1 Ka1 Bd3 Qd4 Be4 Rd8 e8R Bc5 Re6 Re8 Bd3 Bd6 Re4 Rce7 Rc4 Bf4 Rc8 Rd2 R1c4 Qc1 Bb1 Rc2 Qd3 Qf1 Qd1 Bc1 Rg8 Nh5 Rgg5 Ng7 Rh5 Bd2+
r4B1q/b1qRB1Bq/2RP2b1/n5Bk/6bN/Qnp2n2/1P1q3N/1Kr1QB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 g5 d4 f5 Kd2 Kf7 Kc2 Kg6 e4 c5 b6 a5 d6 g3 b7 g2 e5 c4 d5 c3 e6 a4 d7 a3 e7 g4 Bd3 f3 Ra2 f2 Nh3 f1B Qf3 g1N Be3 g3 Bh6 g2 Bc1 Nh6 Rh2 Nc6 b8B Qc7 d8B Na5 Nd2 Be2 Ra1 a2 Ng5 Rh7 Qf2 Bg4 Qa7 Nf3 Bf1 g1Q e8Q+ Rf7 Qa6+ Kh5 Qe1 f4 Be7 Qd4 Re2 Bg7 Re6 Nf5 Rc6 Qde5 Rb1 a1Q Ba7 Bh6 Bac5 Qh8 Bf8 Bd7 Bce7 Be8 d6 Qa2 Ra1 Qd5 Kb1 N5d4 Ra4 Ndb3 Re4 Nh2 Ndf3 Qd2 Rb4 Rf5 Rb7 Bg6 Qa7 Bg7 Qc5 Bd4 Qa3 Qb6 Rd7 Qc7 Nf7 Ba7 Nh6 Re5+ Nf5 Re2 Bg2 Nf1 Nh2 f3 Bh3 f2 Bg2 Qd5 Bcg5 Rc2 Bh3 Qd2 Bg2 Ng3 Bf1 Ne4 Bgh6 Qh7 Bf4 Qg8 Bg2 Ng5 Be3 Nf3 Bh3 Bh7 Bg2 Kg6 h5+ Kf7 h6 Kg6 Bf4 Qf7 Be3 Kh5 Nh4 Be4 h7 Bg6 h8B Qh7 Bf4 Qd4 Qc1 f1Q Bfg5 Qe2 Qe1 Qed2 Bh3 Qdg7 Bf1 Qgg8 Be5 Qgh8 Beg7 Rc1+
3r4/2bbQ2P/1NrNrb2/1Nn5/1k1p1q2/2RRB3/B2NqNPq/1K1n1r1Q w - - 0 1 illegal: No proof kernel
Rn3Rb1/1rn1kbPq/5pBB/1r2q1NB/8/K3Bn1Q/nb3P2/B2rN1Q1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 g4 e5 c4 h5 d4 a5 Kd2 e3+ Kc2 f6 Kb2 e2 g5 e1R d5 a4 d6 e4 b6 e3 g6 h3 g7 e2 c6 a3+ Kb3 a2 c7 h4 c5 h2 c6 h3 d7+ Ke7 b7 Qe8 Nc3 Ra7 Nf3 Rh5 Ne4 Rd5 Bh6 Rb5+ Kc2 Qh5 Neg5 Qe8 Qc1 Rd1 Ne1 Qh5 Bg2 Qe8 Be4 Qh5 Rg1 h1B Bg6 Bd5 Rh1 h2 Qb1 Bf7 d8B+ Ke8 Be7 Be6 Bc5 Ne7 c8B Nd5 Be3 Ba3 c7 Ke7 Bd7 Bb2 c8Q Bg8 Bde8 Bef7 Qh3 Nc7 Qc1 Qf3 Bh5 Qf4 Bg6 Qe5 Bh5 Nba6 b8B Rab7 Bba7 Nb8 Bad4 Bc4 Beg6 Bcf7 Rg1 h1Q Rg4 Qed5 Re4+ Qe6 Re5 Qh2 Rd5 Qee5 Rd8 Qh1 Bd3 Qhe4 Rf8 Qh7 Bdg6 Ba3 Nd3 e1N+ Kc3 Nf3 Ne1 Bb4+ Kb2 Bc3+ Ka3 Bb2+ Ka4 Rd3 Ng2 Rd2 Qg1 Rd3 Ne1 Rd1 Rc1 a1N Bc3 Nc2 Ra1 Nb4 Ra3 Bc1 Ba1 Bb2 Ra2 Bd4 Ka3 Bc3 Rd2 Na2 Rdd8 Nd7 Ra8 Nb8 Ng2 Bd4 Ne1 Bb2+
NN2Q2R/b3R1P1/1n1bp2B/1rq2rr1/bn2q1R1/K1b2R1Q/2kPBq2/1R6 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kf7 g4 Kf6 f4 a5 d6 c5 g5+ Kf5 b6 h5 b5 e3 d7 Ke4 b7 e6 f5 h3 b6 h2 g6 h4 g7 a4 f6 h3 f7 a3 Ba6 c4 Qh5 Kd3 Kd1 a2 Qg4 Bd6 f8R Qh4 d8Q Nd7 b8R Rh5 b7 Ne7 Ba3 e2+ Kc1 e1B Kb2 Nc6 Bc5 Rg5 Ne2 Nb4 Rg1 h1Q Nd4 h2 Nc3 Qe4 Na4 h1R Qe8 Nb6 Rb1 a1B+ Ka3 Bd7 Nc6 Kc2 Rf3 c3 Be2 Ra5 Qh3 Rb5 Be3 Bf2 Rg4 Rf1 Ra8 Bg1 b8R Qf2 Rb7 Qh2 Nd8 Nc8 Rff4 Rg6 Nf7 Rc5 Bf3 Kd3 Ra5 c2 Nb6 Ba4 Nd8 Qg2 Re7 c1Q+ Rb2 Qcc4 Rb1 Kc2 Nc6 Bc3 Nb8 Re5 Rf8 Qg3 Bh6 Rgg5 Na8 Ba7 Be2 Nb6 Rd5 Rff5 Rd3 Rb5 Rh8 Qf2 Rf3 Qcc5
4R2q/1Q1b1Rp1/P7/1bqqbnP1/1NBR1n1k/1r1R4/nRN2K1q/3BQ1r1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 b4 axb4 Bb2 h4 fxe5 Be7 Bd4 Bc5 Bf2 Bf8 Bg3 hxg3 e4 Ke7 a4 b5 h4 c5 d4 f5 h5 c4 h6 b3 e6 Kf6 e5+ Kg5 d6 g2 a5 c3 d7 b2 h7 c2 d5 c1N e7 b4 e8B b3 d6 f4 e6 f3 a6 Nh6 e7 Nc6 Bg6 Ne5 e8R Na2 Nc3 b1Q Nge2 g1Q Bh5 b2 Nd4 Qd3 Rh2 b1Q Nd5 Qbc2 Nb4 Qc5 Rb2 Qh2 Ndc2 Qdd5 Bc4 Kh4 g5 f2+ Kf1 Nf5 Qe1 Nd3 Bd1 Nf4 Rab1 Qda5 d8R Rb8 d7 Bd6 Ra1 Rf8 Rc1 Rf6 h8Q+ Rh6 Qf8 Be5 Qe7 Qg8 Qf7 Qh8 Qd5 Rd6 Qb7 Rd3 Rcb1 Rb3 Ra1 Qd5 Rc1 Qac5 Ra1 Nc1 Ra3 Rg3 Rd3 Na2 Rf8 Rg2 Rde8 Rg3 d8R Bd7 Rf7 Rg4 Qc6 Rb5 Qb7 Rg3 Nc6 Rb3 N6b4 Nh5 Qe3 Rg1+ Ke2 f1B+ Ke1 Bg2+ Kf2 Nf4 Rd4 Bb5 Qe1 Qd7 Na3 Ne3 Rd3 Bh3+ Qg2 Qdc6 R8d4 Bd7 Nac2 Nf5 Rf3 Q6d6 Rd3 Qh1 Qa8 Qdd5 Qb7 Qh2#
K1n4B/1Qq2Pqb/3pbB2/B2Nn3/5Q1P/2BB2R1/rRrbn3/1nkN3r w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 a5 b4 g5 c4 a4 f4 a3 b6 g3 b7 a2 f6 d3 f5 g4 f7 g2 f6 g3 b5 d2 b6 Ke3 Qa4 Ra7 Ne2 g1N Nbc3 g2 Rh3+ Nf3 Rb1 a1Q Rb2 g1N Rg3 Nc6 b8B Bh6 f8B e5 b7 e4 f7 Nge7 Bc7 Ne5 Nf4 Ne2 Ba5 Qc7+ Kb5 Ra6 b8B d6 c5 Rg8 c6 Be6 Bg7 Rc8 Nfd5+ Kd3 Nd1 e3 Ba7 Bg5 N1c3 d1B Bd4 Bc2 Bh8 Nd2 Nd1 Nb1 Bdc3 Bh6 Qf4 Ra7 Bb6 Ra2 Bba5 Bg5 Ka6 Bh6 Rb4 Bg5 B1b2 Bh6 Bd4 Kd2 Bbc3+ Kc1 Rb2 Bh7 Bf6 Rb8 Bh8 Nc8 Bf6 Rb5 Bh8 Rc5 Bf6 Qd8 Kb7 Qc7+ Ka8 Rc4 Bb4 Rc2 Bbc3 Ng1 Bd3 Bg5 Qf5 e2 Qf1 Be3 Qf4 e1R Bh8 Bd2 Bf6 Qd8 c7 Ne2 Bh8 Rh1 Bf6 Ne7+ c8Q Qc7 Qb7 Nc8 Bh8 Ng6 Bdf6 Ne5 Rb5 Qb2 Rb6 Qb4 Rb5 Qd4 Rb2 Qg1 Rf3 Qg5 Rg3 Qg7
R1KR4/nr1PR2q/1NkBNp2/1bn3r1/1R5Q/nR2r1rq/1B2QP2/1b4b1 w - - 0 1 illegal: No possible last move
b2qNr1N/2p1Q2n/1BP2R1q/b1N2n1Q/n3n1PN/B4KN1/2kb2rq/4R3 w - - 0 1 legal: proof: d4 h5 f4 g5 a4 gxf4 g3 e5 dxe5 b5 axb5 h4 Bg2 h3 Qd2 hxg2 Qd4 Qf6 Qd1 Qd8 Kf2 Ke7 b4 Ke6 c4 Kf5 h4 Ke4 c5 a5 e6 f5 b6 d5 b7 f3 h5 a4 e3 f4 c6 d4 b5 a3 g4 a2 e7 d3 e8Q+ Ne7 h6 d2 h7 Kd3 e4 Bh6 b6 Nd7 b8B Nf5 e5 Rf8 h8N Nf6 e6 Nh7 e7 Bb7 Qe2+ Kc2 Qe5 d1N+ Ke1 f2+ Ke2 f1N Nc3 Ra3 Ne4 Ba8 b7 Nd2 Ba7 Nb2 b8N Na4 Nf3 g1Q Nh4 Rg3 Nd7 Qh2+ Bf2 Rg1 Ng3 Rg2 Qh5 Ne4 e8N Bg5 Rb1 a1B Kf3 Bc3 Nc5 Ba5 Re1 Bh6 Ba3 Bg5 Ke2 Bh6 Qe7 f3+ Kf1 Bf4 Bg1 f2 Ke2 Bc1 Kf3 f1Q+ Bf2 Bf4 Rbd1 Qfh1 Rd6 Bfd2 Rf6 Bb7 Na6 Ba8 Bb6 Q1g1 Nc5 Qgd4 Re6 Qg7 Rf6 Qh6
5kB1/2rrbp1B/r2n2b1/n1Q1N1QB/R1RK1q2/2N5/P2P1BBn/n1n1n3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 h5 e4 c5 g4 b5 e5 f3 Ke3 c4 e6 c3 e7 c2 d6 b3 g6 b2 g5 h4 g7 f2 g6 h3 Nf3 h2 Nh4 b4 Nf3 b3 Nh4 Bf5 Qh5 Nf6 Bg2 f1N+ Kf4 Ne4 Ke5 Ra6 Nf3 Nc6+ Kd5 Na5 Ke5 Qb8 Kd5 Kd7 e8B+ Kd8 Bb5 Be7 Be2 Ke8 Qh4 Rh6 Qf2 Ra7 Qc5 Qc7 g8B Kf8 d7 Ra6 Bh7 Rc6 Na3 b1N Nb5 Na3 Bb2 Qb8 Bc3 b2 Rc1 b1R Bd4 Rb3 Bd1 Rd3 Be2 Qg3 Ne5 Rc7 Bh5 Qg5 Rb1 c1N Nc3 Qe3 Rb4 Nc2 Ra4 Qf2 Nb5 Na1 Nc3 Nfg3 Re1 h1N Rf1 Qe3 Rf4 Nf1 Rh4 Nh2 Rf4 Bd6 Rg4 Nhf2 d8Q+ Kg7 Qf6+ Kf8 Qg5 Be7 g7+ Ke8 g8B Kf8 Rf4 Ra6 Nc6 Bg6 Ke5 Qf3 Be3 Rdd7 Rg4 Nd6 Rgc4 Nfd3+ Kd4 Ne1 Ne5 Qg3 Bf2 Qf4+
1BnR1nn1/2P5/2Q3B1/K1PbQrBN/2p2n2/rRnqbkB1/r1B5/2N4n w - - 0 1 illegal: No proof kernel
2Bn4/1p2r1N1/B1rk1BN1/3rbrQ1/3Pbb2/q1RP2rB/r3n2K/2B3QR w - - 0 1 legal: proof: g4 d5 f4 h5 b4 hxg4 c3 e5 fxe5 d4 cxd4 a5 Qb3 axb4 Qc2 Rh7 Qd1 Rh8 Kf2 Ke7 Kg2 g5 h4 c5 e4 f5 a4 f4 d3 b3 e6 f3+ Kg3 c4 h5 f2 e5 b2 a5 c3 a6 c2 h6 Nc6 a7 Qd6 h7 Bh6 Rh4 Nd8 Nd2 b1R Rh1 Qa3 Nc4 Rb5 Ne3 Nf6 Bg2 f1R Ne2 Nd5 Kh2 Re8 h8B Nf4 Bh3 Rd5 Qe1 Rf3 Qg1 Bd7 Rb1 Bc6 Rb3 Rg3 Bg7 Rf8 Rc3 Rf5 Bd2 c1R Bf6+ Ke8 e7 Kd7 e6+ Kd6 e8B Re1 Nc1 Ne2 e7 Rc8 a8Q Bg7 Na2 Ra1 Nc1 Ra2 Bg6 Rc7 e8B Re7 Qa5 Bh6 Bh8 Bg7 Bd7 Be5 Bf6 Rb5 Qb4+ Kc7 Bc8 Rff3 Nc4 Bd6 Ne5 Rb6 Qe1 Rg1 Rb3 Be4 Rc3+ Rc6 Qb5 Rf4 Bg2 g3+ Kh3 Rff1 Nb3 g4+ Kh4 Rf3 Bh3 g2 Nc5 g3 Bf7 Rgf1 Bc1 g1B Bg8 g2 Bc4 Be3 Ng6 g1R Qd1 Bh2 Ne6+ Kd6 Ng7 Rg5 Qe1 R1f2 Qg1 Rfg2 Qf5 Rf1 Qg4 Rd5 Ba6 Be5 Qg5 Bd2 Bhg4 Be3 Kh3 Rg3+ Kh2 Rf5 Bh3 B3f4
2b2b1b/P1b1NNQ1/rR2NPp1/rb1q3r/2NKn3/b3B2k/1Q6/nB4RN w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 b5 f4 e5 h4 c5 a4 g6 f6 g3 f7 b3 h5 g2 f5 b4 a5 c4+ Ke3 b2 d4 e4 a6 b3 h6 c3 h7 c2 d6 Nf6 d5 Nc6 Nd2 b1B Qe2 b2 Nh3 g1B+ Nf2 Nb4 Kd4 e3 Nc4 Bh2 Rg1 Ne4 Nh1 Ba2 Qg2 b1R Bd3 e2 Be3 e1B Qe2 c1B Qb2 Bb3 Ra2 Ra1 Bb1 Ba4 f6 Bb5 Ra4 Bg7 f8Q Bf4 Qg8 Beg3 Ra3 Bfh6 Rb3 Ra5 Qf8 Rb8 a7 Rb6 Qg8 Rba6 Qf8 Rg8 h8N Nc2+ Kd3 Bh2 Nf7 Bh8 Qg7 Na1 Kd4 Re8 Rb4 Re5 Rb3 Rh5 Rb4 Bc6 Rb6 Bb5 Qh7 Ke8 d7+ Kf8 d6 B6g7 Qc3 Ba3 Qb2 Bh6 Ng5 B6g7 Ne6+ Kf7 Qh6 Bf4 Qh7 Qg8 Qh6 Bf8 d8N+ Ke8 Nc6 Kd7 Ne7 Qf7 Ng5 Qg8 Nf7 Ke6 d7+ Bfd6 Nc6 Kf5 d8N Bg3 Qh7 Kg4 Ne7 Kh3 Qg7 Bc7 Ne6 Qh7 Bg5 Qh6 Bf4 Qg5 Be3 Qd5+
B1Nr2q1/pnrQR3/n6Q/2NN1n2/4NK2/kB1br1n1/PN2nPR1/6bn w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 Ke7 Ke3 b5 c4 d5 h4 g5 h5 g2 e6 d4+ Ke4 d3 e3 g3 h6 b4 h7 g4 c6 Kd6 c7 Kc5 e7 d2 e8Q b3 Qc1 Kb4 c5 d1R c6 b2 Ne2 g1N Nbc3 b1N Nf4 g2 Bc4 g3 Na4 Ne7 Nc5 Rd7 Bb3 Ne2 Rh2 g1N Rg2 Ba6 c8N Nf5 c7 Bd6 Ne7 Na3 c8N Rc7 Qd7 Re8 h8N Nc4 Nf7 Na5 Ng5 Nb7 Qd2+ Ka3 Nfd3 Bc4 Re1 Na6 Nb2 Be5 Nd5 Re7 Ncb6 Qg8 Qc1 Rd8 Nc8 Nf3 Qd2 Nh2 Qc1 Nf1 Kf3 Bf6 e4 Bd3 e5 Ree8 e6 Be5 e7 Bd6 Rg1 g2 Nge4 Bh2 Qh6 Neg3 Re2 Nh1 Re3 Nf1g3 Kf4 Rf8 e8B Rf6 Bh5 Re6 Bf3 Ree8 Rc1 g1N Bg2 Nf3 Rg1 N3d4 Bf3 Re6 Rg2 Bg1 Nef6 Rec6 Re7 Re6 Nfe4 Re5 Rg7 Ree8 Re7 Nde2+ Ke5 Rf8 Nef6 Nfd4 Nf4 Nd6 Ba8 Nb7 Nfe4 Rf7 Nd5 Rf3 Nf4 Re3 Nd5 Nc1 Kf4 Ndf5 Qg5 Bh2 Qg6 Bg1 Qh6 Nce2+
kB3B2/7Q/2rn2Pp/2R4Q/N2bbNbK/q1R1RrbP/rn5R/R2rr3 w - - 0 1 illegal: No possible last move, all moves rejected
Rb1n3r/4b1P1/q1N1NQ1B/1Q1n1nR1/b1n4k/5bp1/r2P1N2/NB1nNK2 w - - 0 1 illegal: No proof kernel
2rB2K1/rQn2PRp/1Nb5/3N3N/P1nn4/NBbnN3/q1q1k3/R2nn1Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 b5 d4+ Kb6 g4 c5 f4 e6 a4 b3 g5 b4 d6 h3 d5 b2 d7 h2 f6 b3 d6 c4 f7 Kc5 f5 c3 f6 c2 g6 Qc7 d8Q Na6 g7 Nh6 g8N Bg7 f8N Bb7 Bg5 c1N Qb8 Bc6 Ne2 Kc4 Ne7 Nf5 Nd5 Ra7 Nd7 Rc8 Qb7 Nd4 Rg1 h1N Rg2 Nf2 Nef4+ Nde2 Qe1 Nd1 Nh5 Kd3 Na3 b1Q Ne3 b2 Nb6 Qa2 Qf2 b1N Qg1 Kd2 Bh4 Bh8 Rg7 Nd4 f7 Nd3+ Kf6 e5 d7 e4 d8N Qh2 Bh3 Nc7 Be6 Ke2 Bb3 Nd2 Ne6 Nc4 Ke7 Be8 Kf8 Bc6+ Bd8 Qc2 Ng4 e3 Kg8 Kf3 Qe1 Qa2 Rg6 Nf5 Nef4 Qhc2 Rg5 Bc3 Rg7 Nd4 Qg1 e2 Ng2 e1N Ngf6 Qab2 Nfd5 Qa2 Nge3 Ke2
3Rn1N1/QP3PN1/n6N/nnnb3B/2p2bR1/N1kNr1B1/Knq4r/1q1Q4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 b4 Kf6 g4 a5 d4 h5 Kd2 e5 Kc2 c5 Kb3 e3 b6 h3 b5 c4+ Kb2 e2 f5 e1N d6 a4 d7 h4 b7 h2 b6 e4 d5 Ke5 d6 h3 g5 e3 f6 e2 f7 Bh6 g6 Nf6 g7 Ne8 g8N Nc2 Qe1 Kd4 Bf4 Na3 Nf3+ Kd3 Be5 Nb5 Rg1 h1N Nd4 h2 Nf5 Ng3 Bg2 h1Q Bf3 Qf6 d8N Be6 d7 Ne4 Nc6 Qg6 d8N Ra5 Bf4 Na6 b8Q a3+ Ka2 Nec5 b7 Bg5 Rg2 Rh2 Bh5 Ra4 Qc1 e1N Qa7 Rb4 Be5 Rb3 Nfh6 Bd2 Rg4 Qf1 Bg3 Bf4+ Nd2 Rc3 Kb1 a2+ Kb2 Qh7 Rb1 a1N Ka2 Nab3 Ne5+ Kd4 Rb2 Re3 Nb1 Nd3 Rd2 Na5 Na3 Qe4 Qe1 Kc3 Qe2 Qc1 Qd1 Nb2 Rd5 Bc8 Ne6 Qec2 Ng7 Be6 Rd8 Bd5 Nd3 Q1b1+
Bq1R1B1Q/6b1/3n1pK1/1Q5n/1B2BPNP/1rb4b/r1r4R/bkBN2nn w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 hxg4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 h4 a5 f4 e3 c4 a4 b6 e2 b7 Kd3 c6 g3 c5 g2 c7 a3 c6 a2 Rh2 Nh6 Nf3 g1R+ Bg2 e1N Ba3 e5+ Kh5 g5 Bh1 g4 Qc1 e4 Nc3 g3 Nd1 g2 Qc5 e3 Bc1 e2 Qb5+ Kc2 d4 Nd3 d5 e1B d6 Bc3 d7 Nf2 Ne5 Bg7 Ng4 Ra7 Rb1 a1B Rb3 Qf8 d8B Ra2 Be7 Nd7 b8B Nf6+ Kg5 Re1 Bb4 g1N Rb1 Be6 c8Q Re3 c7 Nh5 Ba8 f6+ Kg6 Nf7 Ba7 Rg3 Bac5 Nd6 Qd8 Rg2 c8B Nh1 Bcb7 Bc8 Rb3 Qg8 Ra3 Kb1 Be4+ Rgc2 Ra7 Qb3 Rd7 Rf8 Qe8 Rf7 Rd8 Rb7 Qh8 Bd7 Nge3 Bh3 Ng4 Qg8 Rd7 Qb8 Rd8 Nf5 Bf8 Nd6 Re8 Rba7 Rc8 R7a3 Rd8 Rb3
rq1bR1nn/kP2r2R/3nQ1P1/B2r2n1/1K5Q/p1bb1QQ1/Q1B1r2N/7N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 c5 d4 Kc7 Kd2 Kb6 Kc3 h5 g4 f5 g5 a5 e5 a4 e6 a3 d6 c4 d5 h3 e7 f3 e8Q f2 g6 f4 d7 h4 d6 h2 Bd2 h3 Qc1 f3 Qe5 Rh5 Qee1 Ba6 Qe7 Ka7 Qd1 Rd5 Qde2 Nc6 Q7e6 Qb8 d8Q Bg7+ Qdf6 Ne5 d7 Nf7 d8Q Nh8 Bg2 f1N b6+ Kb7 b5 f2 Qf3 Ne3 Ne2 f1R Kb4 c3 Ng3 c2 Qb2 c1B Qa2 Nc4 Qh4 Nd6 Be1 Bcb2 Nd2 Rf2 Ndf1 Bgf6 Bc3 Bd8 Re1 Re2 Bd2 Qc8 Bc3 Kb8 b7 Ka7 Bd2 Kb6 b8Q+ Qb7 Qc7+ Ka7 Qcc3 Qb8 b6+ Kb7 Ne3 Bd3 Ng4 Ka6 b7 Ka7 Qff6 Ba1 Be4 Bb2 Qf3 Ba1 Rhf1 h1N Nh2 Nf2 Nh1 Bb2 Bf5 Nfe4 Qce5 Ng5 Qeg3 Rf2 Re3 Re2 Rc1 Be5 Rc7 Ba1 Rh7 Bc3+ Ka4 Ba6 Bc2 Bd3 Ng4 h2 Be1 Ba1 Ba5 Bd4 Kb4 Be5 Nhf2 h1R Nh2 Rhe1 Nh1 Bb2 Qd7 Bg7 Re8 Re7 Qdf5 R1e2 Qe6 Bc3+
NB2N3/R4Rbk/R3rnqn/2KR1nnr/2BbbP2/3bQ3/1p2P3/1q2QR2 w - - 0 1 illegal: No proof kernel
3N3b/3q1KQ1/2r1QR1N/nqn5/N1pNr2q/P1P1r1Rr/b2Nq1B1/2k2B2 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 h6 g6 Qe7 g7 Qd8 g4 Bd6 g5 Be7 g6 Bf8 Bg5 hxg5 Kf2 Ke7 Kf3 Ke6 Ke4 c5 h4 d5+ Kf3 Kf5 e6 b5 e3 b3 h5 g4+ Kg3 Ke4 e7 f5 Kh4 b2 Kg5 f4 c3 g3 h6 g2 a3 b4 h7 d4 Ra2 d3 Qe1 d2 Bb5 d1Q Ne2 g1R+ Qg3 b3 Nd4 f3 Rh3 f2 Bf1 Nf6 g8N Nc6 e8N Ra4 g7 Na5 Kg6 Nd7 Nc7 Qh4 Nh6 Bb7 g8B Bd5 Na6 Bg7 Bg2+ Kd3 Nd2 Re1 e4+ Re3 e5 b1Q e6 f1Q e7 b2 e8Q Qfe2 Qe6 Rb4 Ra1 Ba2 Kf7 c4 Bf1 Nc5 Qge5 Bf6 Rg3 Rb6 Qg5 Qa4 Qg7 Qbd1 Rc1 b1R Rc2 Rc6 Rb2 Ra1 Rb5 Ne4 Rf5 Qb5 Rff3 Be5 Rf6 Qda4 Bg2 Re1 Bf1 Rf3 Nc5+ Ke3 Nd7 Nc5 Nb6 Qad1 Na4 Kd3 Ndf5 Kc2 Nd4+ Kc1 Kg6 Qb7 Bf7 Re8 h8N Qb5 Bg8 Re3 N8f7 Rec8 Bh7 Rh8 Nd8 Re4 Kf7 Re3 N2f3 Qdd3 Nd2 Qf5 Qe7 Qd7 Be4 Qhg4 Ng8 Qd3 Qf8 Rh3 Rd6 Bh8 Beg2 Re5 Nh6 R5e4 Qg7 R1e3 Rg6 Qde2 Rf6 Qc7 Qd7 Qh4 Qe7 Qd6 Qe6 Qd7+
1n1N4/nB1Q3r/1R6/knR1q1pP/q3Q3/1bPN2b1/3K1b2/bRnRR1Br w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 f4 a5 b4 d5 f6 Kd7 b6 Kc6 h5 g5 f7 e4 f5 e3 b7 Kb6 b5 d3 f6 e2 Nc3 d4 Bh3 a4 Bb2 a3 Rb1 g3 Bg2 a2 Na4+ Ka5 b6 a1B Nf3 Qc7 Ne5 Rh7 Kd2 e1N Nc5 Bd6 f8Q Ne7 f7 Be6 Qe8 Bb3 f8R Nc8 Rff1 Na7 Ne6 Qc5 Be4 g2 Nd8 g1B Qd7 Qb5 Qe2 Bf2 Ba3 Qd5 Bc5 Qe6 Bd5 Bc7 Qe4 Qe8 Kd1 d2 Nd3 Qe5 Ke2 d1N Kd2 Nc3 Bc6 Ng2 Rfe1 Ncb5 c3 Nf4 Red1 Bd6 Rhe1 Ne2 Bd5 Nc1 Bc6 Na6 b8R Bc7 Rc8 Nb8 b7 Bd6 Nb4 d3 Bd4 Bg3 Bg1 Bc5 Bd5 Bcf2 Rc5 Nc8 Qdg4 Ra6 Qh3 Na7 Qd7 Rf6 Bc6 Rf4 Bd5 Rh4 Bc6 Na6 b8R Rh1 Rb6 Nb8 Bb7 Bh4 Qdd4 Bfg3 Ke3 d2 Nd3 Bf2+ Kf3 Bhg3 Qd7 Na2 Ke2 Nc1+ Kf1 Na2 Rdc1 Be6 Ke2 d1Q+ Kf1 Qc2 Rcd1 Qa4 Ke2 Bb3 Kd2 Nc1
2rQ2b1/2N3n1/1krQRb2/2nb1P2/BP1n4/1q1QR1pb/5N2/K1Q1nqBQ w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 f4 e5 h4 g5 c4 d5 Kc2 Kd7 b4 Kc7 Kb2 a4 h5 d3 f6 g3 c5 d4 f7 d2 c6 d3 h6 g2 h7 a3+ Ka2 e4 Qe2 d1B Qc2 g4 Rh4 e3 Rh6 d2 Qd3 g3 Qe2 Kb6 c7+ Nc6 Qd3 e2 Nc3 e1N Nh3 g1Q Nf2 Bg7 f8Q Bf6 Qfd6 Bh3 c8Q Bf3 f5 d1B Bg2 Ra6 Be3+ Bd4 Re6 Bd5+ Kb1 Nf6 Bf1 Rf8 h8Q Ne8 Be2 B1b3 Bd1 Bbc4 Ba4 Qf1 Ra2 Qe7 Re2 a2+ Ka1 Qf7 Qh4 Rg8 Qhe4 Ng7 Qh1 Ra7 Qcd8+ Rc7 Qg5 Rgc8 Qh6 Kb7 b6 Bf6 Bc5 Nd4 Qc1 Qg8 R2e3 Rc6 Nb5 Ka6 b7 Bb3 Kb2 a1N b8Q Bbc4 Qd8 Nab3 Qbd6 Kb7 Ba7 Nc5 Nc7 Qf7 Bb8 Kb6 Kb1 Qh5 Ka1 Qd1 Ba7+ Kb7 Bb6 Qb3 Re7 Bg8 R7e6 Bd5 Re2 Nd7 Nd1 Nb5+ Bd4 Nc5 R2e4 Bg5 Bg1 Kb6 Nf2 Nd4 Re3 Bf6
7q/2B1BR2/RQ2P2P/2B3BB/q1nb2Q1/1rbKnr2/k3n1Np/1n2Nb1b w - - 0 1 illegal: No proof kernel
N3qqb1/NnQ2Br1/1B1P2bB/Qr2np2/3B3R/nP3bRn/3bB3/5K1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 d4 Kf6 e4 Kg5 d6 c5 b6 h5 b7 a5 d7 a4 b3 h3 d5 Kh4 d6 Kg3 e5 f3 g5 c4 e6 f2+ Ke2 h4 e7 a3 e8B h2 g6 c3 g7 a2 Qe1 c2 Qd1 h3 Nd2 Ra5 Nb1 Nc6 b8B Rh7 Ba7 Nge7 g8Q+ Ng6 Qh8 Bh6 Qg7 Ne5 Bce3 c1N+ Kd2 Ncd3 Ke2 Nc5 Qc2 Nb7 Qg8 Rg7 Nc3 f6 Rd1 a1N Qd5 Bf4 Qc1 Nc2 Nf3 Na3 Na4 Bh6 Qdd2 Rb5 Nb6 Qe7 d8B Be6 Bg5 Bg8 Nd4 Qe6 Nc6 Nf4+ Ke3 Qe7 Be2 Kg2 Na8 f1Q Qa5 Qe6 Bg6 Qe8 Bd4 Qf2+ Kd2 Qf3 B8b6 Qf2 Rhe1 h1B Na7 h2 Qc7 Qf1 Ke3 Kg1 Rc1 Be4 Rc3 h1B Kd2+ Kh2 Rg3 Qf3 Rf1 Bg2 Rf2 Kh1 Ke1 Bc2 Bf5 Bb1 Be6 Bg6 Bd5 Bh3 Be6 Bg4 Rfg2 B4h5 Rg4 Nh3 Rh4 Qf5 Rg3 Bf3 Bge3 Bf4 Kf1 Bh6 Bg1 Bd2 Bge3 Qg5 B6c4 f5 Bf4 Qge7 Bf7 Q8f8 Bh6 Qee8
5B1r/1R2qk1b/B1P1qN1b/q2B1BR1/rQr3pn/1n6/Q2rB1P1/KN2q3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 c5 Be3 cxd4 Bc1 e5 fxe5 g4 Kf2 Nh6 Ke1 Qg5 hxg5 Ng8 Kd2 d5 e4 h5 c4 b5 Kc2 f5 Kb2 b3 a4 d3 a5 d4 e6 b4 a6 d2 a7 h4 e5 h3 g6 d3 e7 h2 c5 f4 g7 f3 c6 f2 Qc2 d1R Na3 d2 Qe4 Nh6 g8B Na6 Bgc4 Bf5 Qd4 Bh7 Rb1 Nf5 Nh3 Nc5 Nf4 Bh6 Nd5 Kf7 Ka1 Re1 Bb5 d1R Nf6 Rd2 Bb2 Rc1 e6+ Kg6 Bfc4 f1Q e8B+ Kg7 e7 Qe2 Rf1 Nh4 Rf5 h1Q Re5 Rcc2 Bd7 Rc3 e8B Qhe1 Bg6 Rc1 Be4 Qe3 Rh5 Q1e2 Bcd3 Kf7 Bef5 Qe4 Bc8 Qe8 Bdc4+ Q2e6 Nd7 Rcc2 Bc1 Qf8 Nf6 Qd6 Bd5 b2+ Ka2 Re2 Qc3 Red2 Be2 Qd8 Qb3 Rc4 Qa4 Rd1 Bf4 Rd2 Bd6 Qc7 Bf8 Qe7 Nc2 Bg7 Rg5 Bh6 Bb7 b3+ Ka3 Rb8 a8Q Rc8 Q8a5 Rb8 Ba6 Rbb4 Rh1 b1Q Rh3 b2 Rb3 Qf1 Ka2 Qf3 Na3 Qc3 Kb1 Rb5 Qb6 Ra5 Qb8 Qb4 Qd6 Qc3 Rb7 Qb4 Qb3 Ra4 Qa2 Nb3 Qc5 Qa5 Qb5 Re4 Qb4 Rdd4 Kc2 b1Q+ Kc3 Qd1 Kb2 Qe1 Nb1 Rc4 Nd7 Red4 Nf6 Nc1 Ka1 Rd3 Bde4 Rd2 Bd5 Nb3+
q4n2/pbQ2b2/3qn3/7B/Pkq1BNQB/3rBP2/4nnN1/RrqB1KR1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Bg5 hxg5 Qb6 Bb2 Qc7 Bc1 Qd8 d4 Kd7 a4 Kc6 c4 e5 f3 b5 g6 h5 g7 h4 Na3 b4 Nb5 h3 Na3 b3 Nc2 g2 Ba3 b2 Ra2 b1B Ra1 g3 Qd2 h2 Bd3 e3 Bb2 e2 Bh7 e4 Qg5 Na6 Bg6 Nc7 Bc3 Rb8 Nh3 g1N Bd2 g2 Ne3 Qd6 Nf4 Nf6 g8B Nh7 Bh5 Ne6 Qg4 Nhf8 Bh7 Nh3 Rg1 h1Q Bg8 Bb7 d5+ Kc7 c6 Kb6 c7 Kc5 c8B Ba2 Bd7 Nf2 Bc6 Qh4 Bc1 Kb4 c5 Rd8 Bh7 Bc4 Bb5 Rd7 c6 Qd8 c7 Qa8 c8Q Ba2 Rh1 g1N Qc7 Rd8 B7g6 Rh7 Bf5 Rhd7 Bd3 Rb8 Bc2 Bb3 Bd1 Bc4 Neg2 Rdd8 Kd2 e1Q+ Kc2 e3 Be4 e2 Be3 Qf1 Kd2 Qa6 d6 e1Q+ Kc1 Qc6 d7 Ne2+ Kc2 Qd6 Rg1 Re8 d8B Ba2 Bh4 Red8 Bh7 Bad5 Be4 Qc3+ Kb1 Qd4 Kc2 Qc4+ Kd2 Rd7 Bdc2 Qb1 Bd1 Qbc1+ Ke1 Ng5 Bh7 Bf7 Be4 Nge6 Qg8 Qdc6 Kf1 Rd3 Qg5 Qd6 Qg4 Bc8 Qe7 Ka5 Bf6 Rb1 Bh4 Kb4 Qc7 Bb7
2q1BQK1/1R1bbB2/nR1b1N2/1q1P2b1/1BpB1Q2/1qP4N/qk1r4/4b1nB w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 d5 h4 dxe4 h5 Ra6 g5 Rg6 hxg6 Bg7 Rh2 Bh6 Rh1 Bf8 Ke2 Kd7 b4 Kd6 d4 Kd5 b6 Kc4 g7 h5 d5 c5 b5 e5 g6 f5 b7 a4 b6 h4 Qd2 e3 Kf3+ e2 Nc3 e4+ Kf2 a3 Nf3 h3 Ra2 e3+ Kg1 h2+ Kg2 Nf6 g8B Ne4 g7 Na6 b8B Bd6 b7 Bd7 Ra1 a2 Bc7 Qc8 b8Q Nf2 Be6 Nh3 g8B Ng1 Rb1 a1B Ne4 Bf6 c3 Bg5 Bb6 Bge7 Bb2 Kb3 Nf6 e1B Bef7 e2 Be8 Bh4 Ng5 e1B Nh3 Bg5 Bgf7 c4 Bd3 Ka2 Be4 f3+ Kf1 f4 Bd4 f2 Kg2 Rh7 Qe3 Rh8 Ba3 Rh4 Rb7 Rh7 Bb4 Kb2 Be5 f3+ Kg3 f1Q+ Qf2+ Qe2 Rb6 Bh6 Kh4 Qd2 Kh5 Bg5+ Kg6 Qc2 Qf1 f2 Qc7 Qb3 Bd4 Rh8 Kg7 Qa2 Qd3 f1Q Qf3 Qf2 Qd8 Qc2 Qf4 Qcb3 Bg2 Rh4 Kg8 Rg4 Bf3 Rg2 Be4 Rd2 Rb7 Nf3 Rf1 Ng1 Bh1 Bf2 Re1 Bg3 Re6 Be1 Be4 h1Q Bf3 Qh2 Bh1 Bc7 Reb6 Bcd6 Bg6 Qaa4 Bef7 Qg2 Qf8 Qb5 Bh5 Qe4 Be8 Qb1 Bhf7 Q1a2
b1b5/Q2p2n1/qb2rR1K/2qPrP2/rrBN3B/8/2BRB3/1bQ1BrNk w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b3 b5 Ba3 b4 Bc1 Nc6 Rh3 Na7 Rh1 Nb5 cxb5 a4 Qf3 axb3 Qe2 Ba6 Qd1 Bc8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 d4 e5 g4 c5 f4 c4 a4 b2 g5 c3 b6 b3 b7 c2 b8Q h3 f6 h2 g6 Nh6 g7 Bc5 g8B Bb6 a5 Nf5 f7 Qf6 f8B Ng7+ Kg4 h5+ Kg3 h4+ Kg4 h3 a6 Rh7 f5 Rh6 Na3 b1R a7 b2 Bg5 c1Q Be2 Qc5 Ra2 Qfd6 Bf7 Re6 Bh4 Ke3 Kg5 e4 Qc2 Rf1 Be1 b1B Be7 Re5 Nb5 Qe6 Bc3 Kf2 Qc1 Kg2 Be1 e3 Rd2 Qa2 Bb3 Qa6 Bc2 Rf4 Bc4+ e2 Kh6 Rg4 B7h4 Rf4 Bef2 e1R Qc7 Rb8 a8B+ R1e4 Qa7 Rb7 Nf3 Re2 Re1 h1R Ng1 h2 Red1 R2e4 Be2 Rb8 Bd5 Ra8 Bdc4 Re6+ Bf6 R4e5 Be1 Rb8 Nh3 Rhf1 Ng1 Re7 Bfh4 h1B Kg5 Kh2 Kh6 Ba8 d5 Kh1 Nd4 Bcb7 Rd3 Rfe4 Rg3 Bc8 Rd2 R7e6+ Rg6 Rb7 Rf6 Ref4 Ndf3 Rb8 B4b3 Ra4 Nd4 Bd8 Ba2 Rbb4 Bac4 Bb6
7r/P2N3Q/6N1/2pNBnr1/3R1n2/NKPn1r2/rn1Nq3/RBk1qbrQ w - - 0 1 legal: proof: g4 a5 d4 g5 h4 e5 dxe5 f5 b4 axb4 Be3 Be7 Bf4 fxg4 Bc1 g3 Qd4 g4 Qd1 Bg5 hxg5 Kf8 Bf4 Ke7 Bc1 Ke8 Kd2 Ke7 f4 Ke6 e4 b5 a4 c5 c3 d5 Kc2 h5 a5 b3+ Kb2 g2 g6 g3 a6 b4 g7 d4 Ne2 g1N Qd3 g2 Qc2 d3 Ra4 h4 Nd2 h3 Nc4 h2 Nd2 Ne7 g8N Nbc6 Nf6 Nf5 Nd5 Nh3 a7 g1R Qb1 Rg5 Ra1 Ba6 Nd4+ Kf7 e6+ Kg6 e7 Ne5 e8N Qe7 Nef6 Raf8 Rg1 h1R Nb5 Rh2 Nd7 Kh5 Bg2 Kg4 Rd1 Kg3 Qc2 Kf2 Na3 Ke2 Qb1 Nf2 Bh3 Ng6 e5 Bc4 e6 Qe8 Nf1 d2 e7 Bb5 Bg2 Ba6 Be4 Rhg2 Qc2 Nd3+ Kb1 b2 Ka2 Rf2 Kb3 Rf3 Qb1 Rh2 Qc2 Rfh8 Qb1 Qf8 e8Q Qe7 Qa8 Qe6 Qc2 b1R+ Ka4 b3 Qb7 b2 Kb3 Ng7 f5 Ngf4 f6 Nf5 f7 Rhg2 f8N Rg1 Ra2 Ra1 Qc6 Qe7 Qh6 Qe8 Qh1 Qh5 Ng6 b1Q+ Ka4 Qb8 Qb1 Qe5 Qb7 Qh4 Kb3 Qe1 Qc7 Nb4 Bb1 Nbd3 N7b6 Qe6 Qch7 Bb5 Nd7 Qa6 Nc2 Qe6 Ra4 Ra2 Rd4 Qe3 Na3 Q3f2 Bb2 Qg2 Rc1 d1N Nd2 Qgf2 Bc2 Ba6 Ra1 Qh2 Bc1 N1b2 Bb1 Kd1 Ndc4 Qhf2 Be3 Qff1 Nd2 Kc1 Bf2 Qfe2 Bg3 Nh5 Bb8 Nhf4 Be5 Qe4 Bc7 Nf2 Ngf8 Bf1 Be5 Q4e2 Ng6 Nf2d3
1rRBN3/4r2q/4BK2/1Rq2q2/1Qp2rQR/pb1k1n1n/PbNP1R2/6bR w - - 0 1 illegal: No possible last move
3R4/nq5K/rN1qnR2/k1q2bp1/N1P1p2P/1Qr1bBR1/1QRb4/2B1nR2 w - - 0 1 illegal: No possible last move
n4K2/b1q1Qb2/1nNNR3/1PQnR1pk/2rBB3/qqNbN1r1/2P2Np1/8 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 d5 h4 a5 f4 g5 b4 e5 f6 Kg6 f5+ Kh5 b6 a4 b5 a3 f7 a2 f6 Ne7 b7 Qc7 Nh3 Na6 b8N Be6 Qe1 g3 Nc3 g2 Be3 Nc8 Nc6 Bc5 f8N Bf7 Ne6 Nb6 Nf2 Rac8 Rd1 a1Q Ng7+ Kg6 Be2 Qa3 h5+ Kh6 Bf3 e4+ Kd2 d3 Bd4 Rh7 Ke3 d2 Qg1 Qb3 Re1 d1B Rh3 Rhh8 Rg3 Be2 Nf5+ Kh7 h6 Kg6 h7 Bd3 Rg4 Rhd8 h8N+ Kh5 Nd6 Qa3 Ng6 Re8 Nge5 Rh8 Nec4 Rhd8 Kd2 e3+ Kd1 e2+ Kd2 Re8 Ne3 Re4 Rg3+ Rg4 Be4 Qb3 Rf3 Rg3 Rf5 Qa3 Re5 Qb3 Nb1 Qa3 Bb2 d4 Nc3 Qd7 Re6 Nc7 Re5 Nca8 Ba1 Be8 f7 Qc7 f8Q Bf7 Qd8 Nd7 Qe7 Ba7 Re6 Ndb6 Bd5 Bf5 Be4 Qb3 Kd3 Bh7 Rd1 e1Q Rd2 Qa3 Re2 Qb1 Re1 Na4 Kc4 d3 Kd5 d2 Ke5 d1N Kf6 N4b6 Kg7 Qbb3 Bb2 Be8 Kf8 Bhg6 Ne2 Nc3 Ba1 Ncd5 Bd4 Bf5 Nc3 Bh7 Qf1 Bhg6 Qc4 Bf5 Qc5 Bf7+ Qe8 Bg4 Qd8 Be2 Re5 Bd3 Re2 Be8 Qe7 Bf7+ Nd8 Nf6 Re6 Qb8 Bf3+ Rg4 Qe5 Qc5 Nf1 Qb7 Qd5 Qbc6 R2e5 Qca3 Be4 Rg3 Ne3 Qb7 Qc4 Nfd5 Qb4 Rc5 Nc6 Rc4 Qc5 Qc7
1B3r1k/2R1N3/3B1pr1/2B1Q1Pb/2K1Pn2/pr2bq2/Q2b1RBq/B2n1Nq1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 c5 g4 a5 e4 h5 Ke2 a4 Kd3 h3 g5 f6 b6 Kf7 b7 Kg7 b5 f3 d6 a3 b6 h4 d7 f2 Be2 f1R Bb2 h2 Nc3 h3 Qe1 Qc7 d8Q Na6 b8B Ne7 b7 Rg8 Qd6 Nf5 Qe5 Ne3 Rc1 Nd1 Nd5 Bg4 Ne7 Bh5 Bf3 Kh8 Ba1 Rg6 Bg2 Rf3+ Kc4 Rb3 d4 Nb4 d5 Nd3 d6 Nf4 Nf3 Qb6 Rf1 h1Q d7 h2 d8B Qc7 Qb4 Qg1 Qa4 h1Q Nd2 Qh3 Qb4 Qf3 Rf2 Qd6 Nf1 Qd2 Kb5 c4 Bb6 c3 Bc5 c2 Bbd6 Rc8 b8B Re8 Rb1 c1B Kc4 Qb2 Qe1 Be3 Qe2 Rc8 Rc1 Qd2 Ng8 Be7 Rc2 Rf8 Rc3 Bd8 Ne7 Ba5 Rc1 Qe1 Qa2 Bad2 Rc2 Qh2 Rb2 Rd3 Rb7 Rb3 Rd7 Rh6 Rc7 Rg6 Ng3 Qeh1 Nf1 Q1g1
1R3r2/q3N1PQ/q1pk4/bR2bK2/2b1RBp1/1nQ2NRP/2n2R1q/1n2r2B w - - 0 1 illegal: No proof kernel
Q3N1n1/6R1/1B3R1q/1bRN4/P1bbB2P/R4bp1/prR1n1rb/1k3KnQ w - - 0 1 illegal: No proof kernel
3b1k2/1B2bbb1/6rR/BRQp3q/4KP2/n1N4b/PNn1R1pR/RQ1r3r w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 e5 Kd3 g5 c4 b5 h4 b3 f4 g3 h5 g2 h6 e4+ Ke3 b4 f6 g4 c6 b2 c7 g3 c5 b3 c6 d6 h7 Na6 Nh3 g1B+ Nf2 g2 Qd4 Nh6 Bc4 Ng4+ Ke2 e3 Kf3 e2 Nc3 b1B Nfe4 e1B Qc5 b2 Bd5 Ne3 Rh2 Bh4 Nd2 Bg7 f7+ Kf8 Nc4 Bh3 c8Q Bg6 c7 b1R Bb7 Nc2 Nb2 Na3 Qb8 Be7 c8R Qe8 Bd2 Nb4 Rc7 Rg8 h8R Nbc2 Rh6 Rd1 Rc8 Bh5+ Ke4 Bf2 Rc6 Bfh4 Rb6 Bhf6 Rb5 Ra7 Qbc8 Bd8+ Qe6 Bfe7 Qb3 Rh8 Ne2 Ra8 Ba5 Rc8 Nc3 Rh7 Qg1 Rc5 Qb4 Rg5 Qbc5 Rg6 Qe1 Be2 Qh1 Bc4 Qhg1 Qd7 Qf1 Qg4 Qh1 Qh5 Qe1 Rd5 Qb1 Rd1 Qf5 Qg4 Rh1 Bef6 Rh4 Ke7 f8R Bf7 Qc5 Qf5+ Kf3 Bg4+ Kg3 Bg5 Rh8 Rh5 Rh6 Kf8 Re1 Bge7 Re2 Qe5 Rh1 Rh2 Kf2 Bh3 Kf3 Qh5+ Ke4 Bd7 Rf1 Rh4 Rf3 Rhh1 Rh3 Bc8 Rh2 Bd7 Bc6 Bh3 Bb7 d5+
rb1R2b1/2N2Q1R/RK3r1p/P1R3B1/Q2nB2n/1P4b1/2r2pR1/bk1b1N1q w - - 0 1 illegal: No proof kernel
3rR2N/rB3RQ1/1p1b2Qn/1p2P1bb/PN1rNN2/q6n/2r3KB/1kN2r2 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 a6 b4 Bf5 b5 axb5 Kf2 Be6 Ke1 Bc8 Kf2 Kd7 e4 Kd6 a4 Ke5 h4 Kd4 h6 c5 e5 g5 d3 f5 d6 b6 h7 c4 d7 f3 h5 g4 h6 g3+ Ke1 c3 Be2 g2 Kf2 c2 Nd2 Kc3 d4 f4 d5 Nc6 d6 Qe7 d8N Ra7 d7 Qa3 Ne6 Nce7 d8N Nd5 Nc6 Bd6 Ne4+ Kb3 Be3 Kb2 Nb4 c1R Qd3 Rc2 Rf1 Bd7 Bd2 Be8 Bd1 Ka1 Ne2 Kb1 Nc1 Bh5 Kg1 f2+ Kh2 g1B+ Kg2 Bh2 Bf3 Bg3 Rh3 Bh4 Rg3 Nge7 Rg8 Nf5 Re8 Bg5 Be1 Rf8 h8Q Rg8 h7 Nh6 Qg7 Rf8 Rh1 f1R+ Bf2 Rd1 h8N Rg8 Rf1 Rd2 Qc4 Rd4 Qc6 Rcc4 Bg1 Rc2+ Rf2 Rf8 Bh2 Rg8 Kg1 Rf8 Bh1 f3 Nf4 Rg8 Rf1 f2+ Kg2 Rf8 Re7 Rd8 Re8 Bc5 Qcg6 Bd6 Re1 f1R+ Re2 Nf6 Rf2 Nfg4 Ne6 Rcc4 Rf7 Nf2 Nf4 Nh3 Nc3+ Ka1 Kg3 Rcc8 Bb7 Rc5 Kg2 Kb2 Ne4 Kb1 Q7f6 Rc7 Qfg7 Rc2+
1rq3b1/5PkB/p2p3b/1B4n1/1nNRb1N1/bQRr3r/2PBb1B1/K1BQ4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 b4 h5 g4 e5 f4 a6 g6+ Kf6 g5+ Ke6 g7 Kf7 b6 h4 b5 h3 f5 h2 f6 Nc6 b7 Nh6 Ra4 Ba3 b8Q e3+ Kd3 e2 g8B+ Kf8 b6 e1R g6 Nf7 b7 e4+ Kc4 e3 Kb3 e2 Ka2 Rh7 Nf3 Ng5 Ne5 d6 Bd5 Bd7 Ka1 Be6 Ng4 Qc8 g7+ Kg8 Rg1 h1B Nd2 Rh3 Rg3 Bf3 Bg2 Be4 Rc3 Rf1 Ba2 Rff3 Bc4 Rd3 Rb4 Kh7 g8B+ Kh8 Bh7 Bg8 f7 Kg7 Qc7 Rb8 Qb6 e1B Ra4 Nf3 Qb3 Bf2 Bb5 Be3 Rac4 Bh6 Rb4 Ng5 Rbc4 Ra8 b8B Nb4 Ba7 Rb8 Rc5 Rdg3 Rd5 Rf3 Nc4 d3 Qe2 d2 Be3 d1B Rd4 Rfg3 Bed2 Rd3 Qf1 Bdf3 Qd1 Be2
2Q1RN2/1RPQ4/BB4bR/b5Rb/r2p2nN/4P1Rr/p2krb2/Kbq2n2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kf6 c4 Kg5 Kc2 f5 Kb2 a5 h6 d5 h7 d3 c5 d2 b6 f3 h4+ Kf4 c6 Ke3 h5 g5 b7 d4 c7 f2 h6 f4 b5 a4 b6 f3 Qe1 a3+ Ka2 g4 Rh4 g3 Nc3 g2 Rh5 Qg5 Ne4 Nf6 Nc5 Ng4 Nd7 Na6 b8Q Bb4 b7 Ba5 Nf8 Bf5 Qc8 Bg6 b8R Nc5 Rb7 Ne4 Qd7 Qc5 Rg5 Ng3 Rab1 Qc6 Ka1 a2 Ba3 Qc1 Bc5 d1B Bb6 Bdc2 Qb4 Ra6 Qbd6 Kd2 e3 Bce4 Bb5 f1R Qc8 f2 Qdd7 Re1 Be2 f1B Nf3+ Kc2 Bc4 g1B Nh4 Bf2 Bb5 Ra7 Be2 Kd2 Ba6 Qa3 Rc1 Re2 Re1 Bh3 Rg1 Bb1 Rg2 Nf1 Rg3 Rg8 h8R Qc1 Rh7 Rh8 Re7 Bg2 h7 Bh5 Re8 Bge4 Rd8 Beg6 Re8 Rg8 h8R Rg7 Rge5 Rf7 Rg5 Rf3 Rh6 Ra8 Rg1 Rh3 Rg3 Bb4 Bb5 Ra4 Ba6 Ba5
b1Q1B3/1rBP3Q/br1r1bNn/n1K3nB/1B1P2Bq/6N1/kp4Rp/1R5b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 e5 a4 h5 f4 b5 d4 c5 g4 h3 g5 c4 d6 h4 d7 e4 a5 h2 f6 Ke6 f5+ Kd5 g6 c3 g7 c2 f7 b3 f6 b4 a6 Nc6 a7 Na5 Qd3 Rh6 Be2 Rb8 Ra2 Be7 f8Q Ba6 f7 Rhb6 Na3 Nh6 Bg4 Bg5+ Ke2 e3 g8B Be7 Kf3 e2 Bf4 c1R Bc7 Rcc6 Nc4 Rd6 Ne5 e1N+ Ke3 Nf3 Rg2 b2 Bh5 b1B a8B+ Bb7 Ne2 b3 Qh7 Be4 Ng6 Kc4 Rb1 h1B Ng3 Ba6 Bd5+ Kc3 Be6 h3 Beg4 Ba8 Qe8 R8b7 Ke4 b2 f8B h2 Bd5 Rf6 Bf7 Rfc6 Kd5 Kb3 Qh8 Ka2 Qh7 Bh4 Bb4 Qf6 Qc8 Qf4 Bf5 Bf6 Be8 Rd6+ Kc5 Qh4 Bfg4 Ng5
N7/B1PBBn2/1R1Rq1b1/brn1pB1r/5Q2/1BP1p3/rk4rb/N2n1KQ1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 h5 bxa5 c5 dxc5 hxg4 h4 Kf7 a4 Ke6 f4 g5 h5 b5 f5+ Ke5 a6 d5 a7 b4 c6 b3 a5 b2 c7 e6 h6 d4 f6 g3 a6 e3 h7 d3 c3 g2 f7 g4 Nd2 b1R Nc4+ Kd5 Ne2 g1R Ba3 g3 Nc1 g2 Nb3 Qf6 Rh6 Bc5 f8Q Qf7 Nb6+ Ke4 Qc1 Bd4 Be7 d2+ Ke2 Rb2 Rb1 Nd7 Na1 Rb4 Qe1 d1N Qf2 Rb2+ Ke1 Rb8 a8B+ Bb7 a7 Ra2 Rf6 Nh6 Rg6 Bd5 Bc6 Bc5 a8B Bb4 Qg3 Nc5 Bd7 Ba5 Bb7 Qf5 Na8 Bc6 Qg8 Nf7 Qf4+ Kd5 Rb2 Qe4 Ke2 Kc4 Rd2 Bd5 Bbc6 Rbb2 Ba4 Rb5 Qg7 Rg8 Rf6 Rh1 Rh6 g1B Bh3 Bb7 Kf1 Rh2 Bg4 Rh5 Bh3 Bh2 Qg1 Rg2 h8B Nb3 Bd4 e5 Rd3 Qd5 Ra6 Qe6 Ba7+ Be4 Rb6 Nc5 Rd2 Qf5 Rdd6 Qe6 Rdc6 Kd3 Bb3 Bg6 Bf5+ Kd2 Rd6+ Kc1 Rd3 Kb1 Rdd6+ Kb2
1Q1qQ2N/Krb2n1q/1r1rQpPB/Q5Q1/R1r3b1/Rp2N3/n3P3/1k1r1B2 w - - 0 1 illegal: No possible last move
1R2Rb2/1QR4R/1PbR1bQ1/3N3p/k4bnr/2qBpP1q/N1n1K3/b1B2r2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 c5 d4 e5 g5 a5 d6 c4 b6 Kc6 b7 Kb5 f3 e3 d5 h3 d7 a4 g6 h2 d6 a3 g7 a2 Qd5+ Ka4 b5 e4 b6 e2 Bd2 c3 Qg5 c2 Qg3 c1B Nh3 Nf6 g8R Nc6 b8Q Nb4 Qb7 Ng4 Nf4 Qc7 d8R Qc3 Re8 Bd7 Nd5 Bc6 d7 h6 d8R Ra7 Rg1 h1Q Rd6 Qh3 Rh1 Ra6 Rg7 Ra8 Rc7 Bb2 Na3 Rd8 Rc1 a1B Nb5 Rd7 Rcc8 Rg7 Rb8 Rg5 Nf6 Rh5 Nd5 Rh4 Qe5 Rh7 Qf5 Re7 Qg6 h5 Rg1 Nh6 Kf2 e1B+ Ke2 Ng4 Rc2 Bg3 Bc1 Bf4 Rg3 Qg7 Rc5 Bf6 Nbc3+ Kb3 Rc4 Nc2 Na2 e3 Rc5 Ka4 Rg1 Re4 Rg3 Rb4 Rg2 Bd7 Rc7 Rb1 Rg3 Bc6 Rg1 Nh6 Rg5 Qh8 Rge5 Ng4 R5e7 B6g5 Rh7 Qc3 Kd1 Bf6 Bd3 Qb3 Ke2 Qc3 Ba3 Rh1 Bc1 Rf1
3nrB1K/NRnPn1QQ/3n1p2/Qnbpr3/Q2q1k2/5q2/1Q2P1b1/1N1B1R2 w - - 0 1 illegal: No proof kernel
3N2q1/QqbPp1r1/8/Krb1b3/PQ1QBk2/QQNpn1n1/bB1Rb3/R7 w - - 0 1 illegal: No proof kernel
1bBnk3/2Pr1r2/2qb1B2/b1Q1N1pn/2B2QP1/b4B2/1K1pN1R1/2R2Bbq w - - 0 1 illegal: No proof kernel
r1KRrq2/kp3B1Q/rq2P3/1QQ2b1N/1r1B3b/2r2p2/1RNP1Qn1/Q3n3 w - - 0 1 illegal: No possible last move
1QQNq2k/8/1r2n2b/3BpnR1/1R3p1N/Bn1bPN2/q1P3KN/1rN1rn2 w - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 axb5 cxd4 g4 g5 fxg5 hxg4 Kf2 e5 h4 a5 b4 f5 h5 Kf7 g6+ Kg7 b6 d5 b7 d3 b5 a4 b6 a3 Ra2 d4 Bg2 f4 Ra1 d2 Nc3 d3 Bd5 a2 Nf3 g3+ Kg2 Bf5 Ba3 Na6 b8Q Rh6 b7 Qe8 Rb1 a1N Rg1 Ne7 Na2 Nb3 Nc1 Kh8 e3 Nac5 Qc8 Ne6 b8N Ra7 Qe1 d1R Qb4 d2 Nc6 Re1 Nd8 d1Q Qbb8 Bd3 Rb2 Rb7 g7+ Kg8 Rb1 Nf5 Rb2 Kh7 g8N Kh8 Nf6 Rg6 Rb1 Bh6 Ng4 Rb6 Ngh2 Qd2+ Ne2 Qa5 Nc1 Rg7 Rb2 Rgb7 Rb1 Nbc5 Rb4 Nb3 Bb2 Qa2 Ba3 Bf8 h6 Bg7 h7 Bh6 Kh3 g2 Ng5 Kg7 h8N Kg8 Ngf3 Kg7 Rf1 g1N+ Kg2 Ne2 Rg1 Neg3 Ng6 Nf1 Ngh4 Kh8 Kh1 Rb5 Rg5 R7b6 Kg2 Na1 Rd4 Rb1 Rb4 Nb3
1R2Q1KN/bB4B1/Bn2b2R/2rpP3/1P1pkN1n/b1n3r1/q2q4/Q2B1Bn1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 Kh5 a5 e4 f3 g4 f2 c4 a4 b6 a3 g6 a2 c5 Ne7 g7 Ra5 Kh6 Rg8 b7 Ng6 c6 Rc5 g5 Nh4 g6 d6 b3 Nd7 b8Q Nb6 c7 Be6 c8B f6 Bfa6 f1N Bcb7 Nd2 Bb2 Ndf3 Ne2 Ng1 Na3 Be7 Rc1 a1B Rb1 Qd7 Qd8 Qa4 Nb5 Qa2 Nf4 f5 Ba3 Bb2 Qe8 Bd8 Bb4 Ba3 Rb2 Bc7 Qa1 Bb8 Rb1 Ba7 Rh2 Rf8 g8B Qd2 Kg7 h5 Bf7 Rg8+ Kh7 Qa2 g7 d5 Nd6 Ng6 Bf1 h4 Bba6 h3 Rh1 Nh8 Bh5 h2 Bd1 Ng6 Rb2 Nh4 Nf7+ Kf6 Nh8 Ke5 Ne2 f4 Bd2 f3 Bh6 f2 Nf4 Kf6 e5+ Kf5 Bb7 Ke4 Bfa6 Rf8 g8B f1N Bg7 Nd2 Bf7 Rg8 Bfh5 Nb1 Bhe2 Nc3 Bf1 Ng6 b4 Nh4 Rg2 Qd2 Rg6 Qa2 Rh6 Qd2 Bf8 Rg3 Bg7 Nh3 Rg1 h1Q Rg2 Ng1 Rf2 Bd7 Kg8 Qh2 Rg2 Rh3 Rgg6 Rg3 Rd6 Bf5 Rd8 Qa2 Ra8 Qhd2 Rb8 Be6+
2n1n2B/4k3/Rq3q1B/BP1K1p2/R3n1Bb/qNr2QN1/BpQn1P2/1b1r4 w - - 0 1 legal: proof: e4 b5 a4 h5 g4 d5 gxh5 dxe4 axb5 c5 b4 cxb4 Ke2 e5 Ke3 a5 h4 g5 c4 g4 d4 b3 h6 b2 d5 g3 c5 a4 h5 g2 c6 a3 d6 a2 h7 Bf5 d7+ Ke7 c7 Na6 c8B Nc7 h6 Ne8 Nf3 g1Q Qa4 Qg6 Bc4 Qf6 Nbd2 Qdb6+ Ke2 e3 Qa5 e4 Qc3 Ra3 Qc2 Rc3 Nd4 Bg7 Rh4 Bf8 Rb1 a1Q N4b3 Qa3 Ra1 Bg6 Nf1 Bf5 Kd1 e2+ Kd2 e1N Ng3 e3+ Ke2 Nd3 Kf3 e2 d8B+ Kd6 B4e6 Be7 Ra4 Nc5+ Kf4 e1N Ra6 Qc6 Ba5 Ne4 Bc4 Nf3 Bd7 Qb4 Ra4 Nfd2 Bde6 Bd8 Be2 Ke7 Bg4 Qb6 Bd5 Qfc6 Ke5 Qa3 Bc4 Qf6+ Kd5 N8d6 Na1 Nc8 Ba2 Qg6 Nb3 Ngf6+ Ke5 Rg8 h8Q Ne8 h7 Qgf6+ Kd5 Rg6 Qg7 Rh6 h8B Rh1 Qg6 Rd1 Qd3 N4d6 Qf3 Bb1 Qc2 N6e4 Qf4 Qg7 Qe3 f5 Qf3 Qgf6 Qcd3 Nf1 Bh6 Nfd2 Qc4 Bc7 Qc6 Bf4 Qc4 Bg5 Qce2 Bh4 Qed3 Rc6 Qc2 Rc3
4brn1/q1N4N/3b2NN/pQNBRb1p/q2r1KPq/4R3/2P2kb1/2Bn3Q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 b4 Ke5 f6 d5 g3 a5 b6 h3 b5 d3 f7 Kd4 b7 e5 b6 h2 Bh6 e4+ Kf4 e3 f3 d2 Bg2 e2 Nh3 e1Q Nc3 Nc6 b8Q Qee8 b7 Nce7 Ra3 Qa4 Ne4 Nf5 Nc5 Ne3 Nf2 Qh4+ Ng4 Bf5 Re1 h1B Bg5 Be7 f8N h5 Qc1 d1B Nh7 Be2 Qe8 Rd8 b8N Nd1 Nba6 Bf8 Re3 Bb5 Nc7 Bd6+ Re5 Bc6 Re3 Rd7 Qb8 Rd8 Qcb1 Rf8 Q8b5 Be8 Nf6 Rh7 Bh6 Rd7 Nh7 Qd8 Bg5 Qb8 Nh6 Qa7 g4 Rd8 Kg3 Rd7 f4 Rd8 Bf1 Bhe4 Bc4 Rd7 Q1b4 Rd8 Qe1 Rd7 Qh1 Rd8 Ra3 Rd7 Bb3 Ke3 Qb4 d4 N7e6 d3 Bf6 d2 Qb5 Bc7 Bd8 Nb2 Bg5 d1Q Ba2+ Rd3 Bd5 Bd6 Rc3 Rf7 Nc7 Bc8 f5+ Ke2+ Be3 Qe1+ Kf4 Nd1 f6 Qh4 Bc1 Kf2 Rb3 Rd4 Re3 Rg7 f7 Bcf5 f8N Rf7 Ng6 Rf6 Qb2 Rf8 Qb5 Bg2+
kq6/Nr2n3/4KBP1/r3b3/R1Nq1BBp/1Pb2n1n/1p1B2b1/2RQn1QB w - - 0 1 illegal: No proof kernel
3qkqqr/2R3nB/NN2nQPK/Q3p3/1N4Pq/BN3N2/p4bb1/3rr1R1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 h5 g4 d5 b4 a5 f4 a4 c4 a3 c5 a2 f5 d3 Ke3 h4 Kf4 h3 f6 e3 f7+ Kd7 b6 d4 b5 e2 b7 e1Q b6 h2 Ba3 d2 Qa4+ Nc6 Nf3 d1R Nbd2 d3 Rg1 h1Q Qa5 Qh6 Rc1 Nf6 Nb3 d2 Bd3 Ne8 Bh7 Qg3+ Kf5 e5 g6 Rb8 Rc2 Be7 f8Q Bh4 Qf6 Qf8 Rc1 Re1 Rc4 d1Q Rc3 Qf2 Rc4 Bg3 Kg5 Ng7 Kh6 Nd4 c6+ Ke8 c7 Nde6 Rc1 Bd7 c8N Qd5 Rc7 Ra8 b8N Bc6 b7 Qg2 Ng5 Bf2 Nf3 Qg3 Na6 Qc4 b8N Be4 Nh4 Bg2 Nb4 Ra6 Nf3 Rd6 Nb6 Rdd1 Ra7 Qcc8 N8a6 Qg8 Rd7 Qc5 Rb7 Qcf8 Rc7 Qh4+
2bB2rQ/n2R4/1q2B1pq/5RR1/NnQ1P3/3nNKRb/5pP1/r2Rqq1k w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 g6 h6 Bg7 hxg7 Qb6 Be3 Qc7 Bc1 Qd8 Kf2 Ke7 e4 Kf6 c4 Kg5 b4 f5 c5 d5 b6 h5 b7 a5 c6 h4 c7 d3 b5 d2 b6 d4 Kf3 a4 Bb2 h3 Qc1 Kh4 Ra2 d1B+ Kf2 a3 Rh2 f3 Bd3 f4 Ra1 a2 Na3 Ne7 g8R Nec6 Qc4 Nb4 Ne2 N8c6 b8Q Na7 Rg7 Rg8 b7 Kg4 Bc2 d3 Bb3 d2 Nc3 Qf6 Rc1 a1Q Nc2 Qb6+ Ne3+ Kh4 Rh1 h2 Rf1 h1Q Rd7 Be2 Na4 d1N+ Ke1 Kg3 Bf6 Kh2 Bd8 Nb2 Kf2 Bd1 Rc3 Be2 Rfd1 Qc1 Rcd3 Qc3 R3d5 Qh8 Rg5 Qh6 Re7 Bh3 c8R Bf1 Red7 Qg1+ Ke1 Kh1 Rcc5 f2+ Kd2 f3 Rcf5 N2d3 Qbc8 Be2 b8R f1Q Rg3 Qc6 Rbb5 f2 Rfg5 Beg4 Rbf5 Qb6 Qb8 Nc8 Qe5 Ra6 Qh8 Na7 Nc2 Nc5 Ke3 Qe1+ Kf4 Qgf1 Ne3 Ra5 Rf8 Bf5 Kf3 Be6 Rff5 Ncd3 Rg7 Bc8 Rd7 Qb8 Qc1 Qb6 Be6 Ra6 Qc4 Ra5 Nc5 Ra2 Na4 Ra1
3BNqB1/KbQ4q/bP3bR1/RRNR4/2b3p1/3Qp2k/R1r2Pn1/r2q3n w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 d5+ Kc5 a5 c4 g5 b4 d3 h4 d2 h5 d4 b6 e5+ Kb5 g3 c5 g4 h6 Kg5 c6 g2 h7 e4 b7 a4 f6 d3 c7 a3 Kb6 e3 b5 a2 f7 Na6 b8R Bb7 Rh6 Ne7 Bb2 Bg7 f8R Nc5 Na3 Ne6 Rg6+ Kh4 Nh3 g1Q Rf5 Nf4 Nc4 Qh2 Ng5 Qf8 c8Q Bf6 Nd6 Ng2 Nge4 Kh3 Rd5 Nf5 Nc5 Ng3 Qc7 Nh1 Ne8 Rg8 Qb1 d1B Qc2 d2 Bc4 Ra3 Qd3 Bb3 Ra8 d1B Ra5 Rg7 Ka7 Be2 h8R+ Rh7 Rb1 a1Q b6 Ra2 Bd4 Rc2 Bc3 Ba2 Rbb5 Qd1 Be5 Rh5 Bg3 Bf1 Bh4 Re5 Bb3 Re4 Rh7 Ra4 Re7 Ra3 Re4 Be2 Rea4 Bf1 Bc4 Bb3 Bg5 Ra1 Ra2 Be2 Rf5 Bf1 Bg8 Bc4 Rd5 Be2 Qd8 Qc7 Qd6 Qh7 Qc7 Be5 Bd8 Bf6 Rbb2 Bca6 Rbb5 Bf1 Qd2 Bc4 Qc3 Ng3 Qd3 Nh1
B1B1bn1R/1r6/1p1Kn1Br/1P1N1B2/1b1p1PR1/1Bn2Q2/1q4nb/3qQNk1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 c5 hxg5 Nc6 d4 cxd4 b5 Nb8 Bd2 Bg7 Bc3 Bf8 Bb4 axb4 Kd2 Kf7 Kd3 e5 Kc4 d5+ Kb3 h5 a4 h4 f4 e4 g4 h3 c4 h2 g6+ Kf6 a5 b6 c5 e3 g7 d3 a6 d2 c6 e2 a7 e1B c7 Rh6 Ra2 Nc6 Qf3 d1N Nd2 Nge7 g8B Rb8 a8B Bg3 Bf7 Ne3 Bd3 Ng2 Bg6 Bd7 c8B Be8 Ne2 Rb7 Nc3 d4 Kc4 b3 Bc2 b2 Nf1 b1N Rg1 h1Q g5+ Kg7 Ra1 Bh2 Nd5 Nc3 Ra2 Qd6 f6+ Kh8 f7 Kg7 Ra7 Qa3 B2f5 Nd8 Ra5 Ne6 Ra4 Ne1 Rg4 Qb2 Ra1 Ng2 Re1 Ng8 Rd1 Bb4 f8Q+ Kh8 Qd6 Kg7 Qe5+ Nf6 Qe1 Nd7 Ra1 Ndf8 Ra7 Rd7 Rc7 Rf7 Rc5 Rb7 Rc7+ Kg8 Rh7 Qg1 Rh8+ Kg7 Bf7 Qh1 g6 Qg1 Nc7 Kf6 g7 Qh1 g8B Qg1 Bc2 Qh1 Bb3 Kf5 Nd5 Qg1 Bh7+ Rg6 Nc7 Qe3 Qfd1 Ke4 Qd3+ Kf3 Qdd1+ Ne2 Kd5 Rh6 Bf5 Qec1 B7g6 Qca1 Ke5 Qac1 Nd5 Qcb1 Qed2 Kf2 Q2e1+ Kg1 Qd3 Nc3 Qf3 Nc5 Kd6 Q1a1 Be4 Qd1 Bef5 Nce6+
q3R1r1/b4bPQ/n1bBpr2/4p2n/P1rQB3/NBB3q1/1B1r1RN1/2K4k w - - 0 1 legal: proof: e4 a5 c4 g5 h4 d5 cxd5 f6 b4 axb4 e5 fxe5 hxg5 Qd6 Nc3 Qd7 Nb1 Qd8 g4 Kd7 f4 Kd6 a4 h5 d4 c5 Kd2 b5 f5 c4 f6 b3 f7 b4 g6 c3+ Ke1 b2 g7 c2 Kd2 h4 g5 h3 g6 h2 Bd3 b3 Ne2 Rh6 Be4 Na6 Na3 b1Q Bb2 c1R Qc2 Be6 Ra2 Nf6 g8B Nh5 g7 Rf6 Nf4 Rb8 Qd3 Rc4 Ng2 Qg1 Qc2 Qf2+ Kc1 Qg3 Rf1 h1B Rf4 Kc7 d6+ Kb6 d5 Kc5 Rf3 Ra8 Rc3 Kd4 d7 Qa5 d8B Rb8 d6 Ra8 Ba1 b2+ Kd2 b1R d7 Rb2 Kc1 Qd5 Ba5 Qc6 Qb1 Rd2 Bb2 Rb8 Bb4 Qa8 d8Q+ Bd5 Bf3 Rbc8 Qh7 Rb8 Be4 Rbc8 Nh4 Bg2 Rc2+ Ke3 B4c3 Kf2 Qb6+ Kf1 Qd4 Bf3 Ng2 Rb8 Qd3+ Kg1 Qe3+ Kh1 Qd4 Rd3 Rf2 Rd2 Ra1 Rd8 Rb1 Be6 Ba1 Bd5 Rb8 Bc6 Bb2 Be8 Bc2 Bfc6 Bb3 e6 Rc8 Bb4 f8B Ba5 Bd6 Bb6 Bf7 Bc5 Bg6 Bf7 Be4 Rg8 Re8 Ba7
1r1B4/1R1r1PQ1/1PQqQR1p/Q3b2b/q2nKbp1/rN4N1/Q3n3/2rk1B2 w - - 0 1 illegal: No proof kernel
4R2r/K2P1b1p/1B1Q1q2/4Pqbn/k2nBB2/1N4r1/1pQRBq1n/4Nq1B w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 d4 c5 g4 b5 e4 f5 a4 f3 Ke3 f2 g6 b3 a5 b2 a6 c4 d6 Kc6 d7 b4 e5 Kb5 g7 b3 g5 Bb4 d5 f4+ Kd4 f3 a7 Qc7 d8B Bh3 d6 Ba5 g6 Bg2 d7 Bd2 Qc2 Nf6 g8B Bg5 g7 Qd6+ Bd5 Nh5 g8Q Qf6 Nd2 b1Q Qgg6 b2 Be2 f1Q Bb6 f2 Be4 Nc6+ Kd5 Bh3 Rh2 Rag8 a8B Nd4 Nb3 Be6+ Kd6 Qe1 Kc7 f1N Kb7 Qef2 Nf3 Bf7 Ka7 Kb4 Ra5 c3 Ne1 Rg7 Rc5 Ka4 Bf4 Rgg8 Rg2 Nh2 Rc8 Rg7 Re8 Rgg8 Qd2 c2 Qc3 c1Q Qc2 Qd1 Qh6 Qd3 Qf8 Qh3 Qd6 Qhf5 Bab7 Qf1 Rf2 Qc1 Bh1 Qe3 Bbe4 Qd2 Bd1 Qe3 Rd2 Qef2 Be2 Bh6 Kb8 Rg3 Ka7 Bg5
2Qr4/3p3p/B2N1N2/q1qB1B1q/n3b1r1/K3Rn2/1QBBPPkr/4q1bR w - - 0 1 illegal: No proof kernel
1QR2b2/NQp1NB2/r5Q1/2rnk1PK/1R3q2/r2n2Bq/1Pp1nQ1Q/6nb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 Ke2 Kd7 Kf3 Kd6 Kg4 a5 f4 e5 d4 e4 d5 e3 b6 c3 b7 a4 Bc4 a3 Nf3 h3 Qg1 h2 Kh5 e2 g4 e1N g5 h6 f6 c2 f5 a2 f7 Qe7 f6 Nc6 b8Q Nd4 Ne5 Ra5 Qb7 Ndf3 Ng6 Rc5 Nc3 Qe3 Ne7 Ke5 d6 Qf4 d7 Nd3 d8Q Be6 Qg2 Ng1 Nb5 Bd5 Qdb8 Be4 Be3 Bd5 Rf1 a1R Na7 Ra3 Bf2 Rh7 Bg3 Ra6 Kg6 h5 Ra1 h4 Ra4 h3 Rb4 Ra3 Qe8 Rg7+ Kh5 Rg6 Qeb8 Nf3 Rd1 h1Q Qh2 Qf1 Qe8 Ng1 Qec6 Bh1 Qcb6 Nf2 Rd8 Nd3 Rc8 Qg2 Nf5 Ne7 Q6c6 Nd5 Ne7 Bh6 f8Q Qf1 Qg8 Bf8 f7 Qg2 Qcb5 Rga6 Qg6 Qf1 Qf2 h2 Q5b6 Bh6 f8Q Qg2 Qd8 Bf8 Qd7 Qf1 Qg4 Qh3+ Qh4 Bg2 Qb5 h1N Qb8 Nc1 Q5b7 Nce2 Bb3 Be4 Qh2 Nf2 Bc4 Bh1 Bb3 Ne3 Bf7 Nd3 Qf2 Nd5 Qh2 Qf5 Qf2 Qe6 Qhh2 Qh3+
bnN4N/Knp1qN2/q1r1k3/2QpB1Rb/2QPr3/1B4bR/3nnPN1/N7 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 Na6 h4 gxh4 a3 Nb4 Ke2 Nc2 Nh3 Nxa3 Ng1 Nc2 Kd3 Kf7 Kc4 e5 d4 h5 g4 a5 b4 e4 g5 h3 b6 d5+ Kb5 h4 b7 e3 b8Q a4 f6 a3 g6+ Ke6 f7 e2 g7 e1Q Qa7 a2 Nf3 h2 Na3 h3 Qc5 Ra6 Qd3 Nh6 g8N Bd6 Ne7 Re8 Bf4 Rc6 Nh4 Qe2 Ng2 Bb7 Nc8 Nf5 Qdc4 Ba8 Be5 Qe7 Re1 a1N f8N+ Kf7 Rc1 Nb3 Ng6 Nd2 Nh8+ Ke6 Ka5 Qd3 b5 Nb4 b6 Na6 b7 Nb8 Nc2 Qe2 Rg1 h1B Na1 h2 Rc3 Qd3 Ra3 Qb1 Rh3 Qb3 Bg7 Bg3 Be5 Nd6 Be2 Qb2 Bd1 Qb1 Bb3 Qb2 Ne1 Bf3 Ng2 h1N Nc2 Bh5 Na1 Na6 b8N Nb7+ Kb5 Qb1 Nd7 Qd3 Bd6 Nb8 Ne5 Bh4 Nef7 Ng3 Be5 Ne2 Ne3 Qb1 Rg5 Bg3 Ng2 Rg8 Rf5 Rg4 Rg5 Re4 Qb6 Nd7 Ka6 Nb8+ Ka7 Qb2 Qbc5 Qb1 Ba2 Qb5 Bb3 Qa6+
1r1Rr3/1P3Nnb/1B1Pp2B/4nBR1/k1K1p2q/3Q1B1q/BQ3b1b/3Nqq2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kd7 f4 a5 g4 c5 d4 c3 b4 c4 d5 c2 d6 c3 b6 Kc6 f5 Kb5 b7 a4 f6 a3 f7 a2 g6 Ra7 g7 Qc7 g5 Bf5 g6 Nh6 g8B Qc8 g7 Nc6 b8Q+ Rb7 Qd3+ Ka4 b5 Ne5 Be3 c1B b6 c2 Nf3 Bd2 Rh2 c1Q Rh5 Be1 Rg5 Bf2 Bh3 Qf1+ Kd2 Qd7 Kc3 Bg6 Bd4 Nf5 Bg4 h5 Bh7 h4 g8B Bg7 f8B Bf6 Bh6 h3 Bc4 h2 Be3 Nc6+ Ne5 h1Q Bf3 Re8 Bcg8 Qc8 Kc4 Ng7 Nf7 Qch3 Bc5 Be5 Nc3+ Ka5 Nd1 Bh2 Rc1 a1Q Be3+ Ka4 Rc3 Bh5 Bf5 Bg6 Rc2 Bh7 Rc1 Ra7 b7 Ra5 Bb6 Ra8 Qc8 Qh4 Qe6 Rab8 Qe5 Qe1 Qb2 Qg2 Kd5 Ne5 Rc8 Qgh3 Rd8 Nd7 Kc4 Qb1 Nh8 Qa1 Bd5 e6 Nf7 Qef1 Kc3 Ne5 Ba2 Nc6 Kc4 Qb1 Ne3 Qbe1 Nd1 Ne5+
4n2k/P2BK1bn/QN5q/q2P2R1/2Q1r2R/rp1bR2p/b3bB2/RN1q2R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kg7 Ke4 h5 Ke5 b5 d4 c5 g4 b3 a4 e6 f4 h3 d6 h2 a5 h4 d5 b2 d7 h3 a6 b4 g5 b3 a7 c4 g6 c3 Ne2 c2 Qd3 Bb7 Nec3 Rh6 f6+ Kh8 f5 Ba6 f7 Qa5 d8R Bg7+ Kd6 e5 f8Q e4 f6 e3 f7 e2 Rg1 e1Q Na4 h1B Be3 c1Q Nb6 Nd7 Re8 Bf3 Qc4 Qed1 Bf2 Be2 Re3 Nf6 Qfc8 Nh7 f8R Rh4 Q8c6 Re8 Rf4 Ngf6 Rd4 Rh6 Rh4 Re4 Qb7 Bb5 Qa6 Bd3 Be2 Qcd2 Bg4 Be2 Qc6 Bbd3 Qcc4 Q2c1 Be6 Ne8+ Ke7 Qcd2 Na3 b1B Rg5 Ba2 Nb1 Rd4 Bd7 Q2c1 Qcb5 Qc6 Qc5 Ra4 Qcc4 Rh5 Rg1 Rf5 Rg5 Rf4 Rg1 Ra3 Rg5 Be5 Rg1 Re4 g7+ Kg8 Rg5 Qh6 Rgg4 Ng5 Rg1 Kh7 g8R Bc3+ Kd8 Bd4 Rg6 Kh8 Rg7 Be5 Ke7 Nh7 R7g5 Bg7+
B3rr2/p2r3B/4n2P/k1N3br/2RqN2Q/3Pq3/2bK1pQB/1B1R1Bqn w - - 0 1 illegal: No possible last move, all moves rejected
2QNrrrq/p2R1B2/3p2qB/1R3PRr/2R4K/bPR1Q3/qn4N1/nb1k4 w - - 0 1 illegal: No possible last move
2N3kr/p1q1Q3/2p4Q/1b1bqN1R/1bP1R2B/3QKn2/Qbn4P/r4QBq w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 Kd2 Kf7 b4 d5 e4 g5 c4 c6 f4 g3 e6+ Kg7 b6 g4 e7 d4 e8Q d3 e5 Bc5 f5 Be7 e6 Bf6 e7 Bc3+ Ke3 d2 b5 Kh7 b7 Na6 b8B Bb2 b6 Bg7 f6 Qc7 f7 Nh6 f8Q Nf7 b7 Bb2 Qd7 Ng5 Ra5 Nf3 Qf1 d1B Nc3 Nb4 Qh6+ Kg8 Nge2 Ba4 Ne4 Bb5 Qd3 Be6 Nd4 Bd5 Nf5 Qe5 Bd6 Rd8 b8Q Rf8 e8Q g1B+ Qf2 g2 Be7 g3 Bh4 Qc7 Qe7 Rd8 Ned6 Nc2+ Kf4 Rf8 Qff1 Bc5 Be3 Bb4 Bg1 Re8 Qc8 Rd8 Qa6 Rf8 Bf2 g1Q Bb6 g2 Be3 Qb7 Nc8 Qf2 Bd4 g1Q Bc5 Qe2 Bcf2 Qg2 Bg1 Ba4 Rc5 Bb5 Qa2 Qe1 Be3 Rd8 Rg1 Qg7 Rg4 Rd6 Bg1 Qc7 Rg2 Qa1 Re2 Qg2 Re4 Qh1 Kg3 Rg6+ Kf2 Re6 Rf4 Re1 Re4 Rb1 Ke2 Bc1 Kf2 Qae5 Ke2 Bb2 Kf2 Na3 Ke3 Ra1 Qh3 Bf7 Ng3 Qe6 Rh5 Qee5 Nf5 Bd5 Qhf1 Nc2+
1Q3BQb/pqNPRn1n/4br2/pNr1Q3/3PQ3/K3R1rk/2b1BQ2/q5r1 w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Bb7 a5 bxa5 Qf3 Ba6 Qd1 Bc8 d4 Kd7 Kd2 e5 Kc3 c5 Kb3 h5 g4 e4 f4 h3 d6 h2 f6 Ke6 g5 Kf5 f7 c4+ Ka3 h4 b4 c3 b5 c2 g6 h3 g7 e3 b6 e2 b7 Kg4 f5 Qc7 f6 Rh4 Nc3 Nc6 b8Q Ne5 Bh6 c1R Qe1 Be6 Nf3 Qb7 Nb5 Rc5 d7 Bd6 f8Q Nf7 Rc1 Be5 Qe7 Rh5 Qee8 Rf5 Rc3 Rg5 Qb1 e1R Be2 Rg1 Re3 Rg3 Rf1 h1B Re1 h2 Qe4+ Kh3 Qe7 Bg2 Qed6 h1Q Qe7 Nd8 f7 Nf6 g8Q Nh7 f8Q Bh8 Qed6 Rg6 Qde5 Nf7 Bg7 Rf6 Ng5+ Kh2 Bh6 Bgh3 Bg7 Bb3 Ne6 Bc2 Nec7 Be6 Qe7 Kh3 Bf8 Rf1 Q7f6 Rg1 Qbd8 Rb8 Qf2 Rc8 Na6 R8c6 Nac7 Bd5 Qa8 Rf6 Qb8 Be6 Rb3 Bd5 Qeg2+ Kh4 Bf1 Bde4 Qef5 Bd5 Re7 Be6 Re3 Qh3 Qe5 Qg4 Bc4 Qd1 Qge4+ Kh3 Be2 Qa1#
1bb3RQ/8/QN2nQR1/bp1B4/2P2rQB/bpr3nq/n2kn1KP/N6Q w - - 0 1 illegal: No possible last move
2k1K3/3b1nBP/P4pN1/Q2nN1nB/1Q2Qb2/2pR1b2/1r1Rn1Q1/bqQ3r1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Kg4 g5 Kf5 b5 d4 f3 e4 b3 a4 f6 Kg6 b2 Kf7 c4 h4 c3 d6 b4 a5 f2 e5 b3 e6+ Kc6 e7 Kd7 d5 g4 h6 g3 h7 g2 a6 Qa5 h5 Bb7 h6 Qb4 Rh3 Qe4 Be2 f1N Nd2 b1N Bh5 b2 Nc4 Ne3 Nf3 g1B Nfe5+ Kc8 Ng6 Bh2 Nce5 Nc6 Ke8 Nd2 Ra2 b1B Rb2 Nf3 Rd2 Bf4 d7+ Kb8 d6 Nd5 Qf1 Ncd4 Qg2 Ng5 Rhd3 Ne2 d8Q+ Bc8 Qa5 Bd7+ Kd8 Ra7 e8Q Rb7 Qb4 Bc2 Ba3 Bd1 Qe7 Qf5 Qbe4 Rb2 Bc5 Be6 Ke8 Kc8 Bb4 Nc1 Bc5 Bf3 Be3 Ne2 d7+ Kb8 d8Q+ Bc8 Qg7 Ba3 Qa5 Be6 Qf8 Kc8 Qfb4 Bd7+ Kf8 Rc2 Bc5 Bb2 Be7 Ba1 Bd6 Be6 Ke8 Ra2 Bf8 Rb2 Qe3 Qe4 Bg7 Bh3 Rd4 Qb1 Qe4 Bf5 R4d3 Nge7+ Bf8 Rg8 h8Q Nc6 h7 B5g4 Qg7 Nd8 Qa7 Be6 Qag1 Ndf7 Qc1 Nh3 Nh8 Rg3 Bh6 Nhg5 Bg7 Beg4 Nhg6 Bh3 Qgh1 Rg1 Qg2 Bd7+
Br6/1p3nBN/p6P/1Rn3Bb/RNQ2q1b/rQ3r2/PrB4b/K1B2b1k w - - 0 1 legal: proof: c4 h5 f4 d5 cxd5 e5 g3 exf4 g4 hxg4 b4 a6 d6 Ne7 b5 Ng8 d7+ Ke7 Qb3 Kd6 Kd1 Qh4 Kc2 Ke7 Kc3 Qh7 Qd1 Qh4 Kc2 Qf2 Qe1 Kf6 Kd1 Qh4 Qg3 Ke6 Qb3+ Ke7 Qa4 Qh3 Ke1 Qe3 Qd1 Qa7 b6 Rh6 bxa7 Rh8 d8B+ Ke6 e4 Ke5 h4 c5 d3 f5 Kd2 g5 Kc3 g3 Kb2 c4 h5 f3 Nc3 g2 Nb5 f2 Nh3 g1B Nc7 g4 Bg2 f1R Qb3 g3 Qc2 f4 Bg5 f3 Rb1 c3+ Ka1 f2 Qb3 c2 Nd5 Nh6 Nb4 Nf7 h6 Nd7 Bf3 g2 Bd1 Rb8 a8B Rg8 Rh2 Kd4 e5 Be7 e6 Nc5 Qc4+ Ke5 d4+ Ke4 Rh1 Bd8 e7 Bh2 e8Q+ Be7 Qeb5 g1R Bf6 R8g2 Bg7 Bg4 Qb6 Be2 d5+ Kf3 d6 Bh4 d7 Rg3 d8B Kg2 Be7 Bh5 Ng5 Rf3 Nh7 Ra3 Bf4 c1Q Beg5 Qe3 Bc2 Qe4 Bc1 Qf4 Qf6 B2g3 Rh3 Bh2 Qfc3 Kh1 Q3b3 Rg3 Rb2 Rf3 Rg3 Rg1 Rg4 f1B Nc6 Nh8 Qbb5 Be2 Qe6 Qf7 Ra4 Rd1 Qec4 Rd4 Be4 Rd2 Rb3 Rb2 Bc2 Bf1 Rbb4 Rf5 Qb3 Rf6 Q5c4 Rf3 Rb5 Qf4 Nb4 Nf7
5N2/Br1P1r2/qqn1Q1pN/k2Nn2q/1p1nN3/1P3R1Q/2Bb4/1NKnn1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 e5 Nf3 exf4 Ng1 d5 cxd5 b4 Bg2 Ba6 Bf1 Bb5 axb5 Kd7 Nh3 Ke7 Ng1 Ke8 d4 Kd7 Kd2 f5 e4 a5 h4 c5 b6 a4 h5 f3 b3 g6 d6 Kc6 b7 Kb6 e5 f2 d7 c4 e6 f4 h6 g3 d5 g2 e7 f3 e8N c3+ Kc2 a3 h7 a2 d6 Qg5 d8N Ra7 d7 Nh6 Bb2 Nf7 Na3 Ne5 Bd3 f1N Nd6 f2 Qe1 Bg7 Nb1 Rf8 h8N Ne3+ Kc1 f1Q Ne2 g1Q Rh3 c2 Ne4 Ka5 N2c3 Qh5 Ne6 Nbc6 b8Q Rb7 Nf7 Nd1 Nh6 Rf7 Nd5 Qb6 Rf3 Bh8 Nf8 Bf6 Kd2 c1N Bc2 Qfa6 Bd4 Ne2 Bc5 Ned4 Kc1 Bg7 Qe8 Bf6 Qg3 Bh8 Qe6 Bf6 Na3 Bh8 Rb1 a1N Qgh3 Bg7 Bd6 Bf6 Bb8 Bg7 Ba7 Bh8 Bd3 Nac2 Ra1 Ne1 Bc2 Bg7 Nb1+ Kb5 Bd3+ Nc4 Ng4 Nec2 Nh2 Bh6+ Nbd2 Nf2 Ng4 Be3 Rb1 Ka5 Nh6 N4e5 Kb2 Bg5 Re1 Nd1+ Kc1 Bh4 Rg1 Be1 Nb1 Bc3 Bc4 Ne1 Bd3 Ba1 Bc2 Bb2+ Kd2 Bc3+ Kc1 Bd2+
1nn2b1q/1B1N2qN/1B1rp1Qn/2BrBQ2/k1P1BnRn/1R4p1/4P2r/7K w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 f4 h5 c4 a5 b4 d5 f5 Kd7 f6 e6 b6 Kc6 g5 a4 b5+ Kc5 g6 Kb4 g7 d3 f7 a3 b7 d4 b6 a2 Nd2 h4 Ndf3 h3 Ba3+ Ka5 Ng5 h2 Nh7 Nd7 b8B Ra6 b7 Nh6 g8B Rd6 Rb1 a1Q Nf3 g1N Qc2 Nh3 Ba7 Nf4 Bg2 d2+ Kf1 d1N b8B d3 B3c5 d2 Qg6 Ka4 Rb3 Qg7 Bab6 Qh4 B8c7 Nb8 Ne5 Nb2 Nd7 d1N Bb7 Ne3+ Ke1 Nef5 Kf1 Rd5 Be5 Qd8 Bg1 Nh4 Bgc5 Be7 f8Q Bd6 Rg1 h1R Qff5 Rh2 Rh1 Qc8 Bf7 Rd8 Kg1 Bf8 Be8 Nd1 Bf7 Nc3 Be8 Ne4 Bf7 Rf2 Rh3 Nd6 Kh1 Qh8 Bg8 Qc7 Bf7 Nc8 Be8 Nhg2 Rh4 Rd6 Rg4 Nh4 Qgf6 Rg2 Bg6 Rf2 Qc2 Rg2 Bge4 Rf2 Qg6 Rg2 Ndf6 Qcg7 Nd7 Rf2 Bg2 Rd5 Qcf5 Rd6 Bge4 Rd5 Ndf6 R8d6 Nd7 Rh2+
1r1BBKB1/3qr1N1/Q1r1B2p/n2r2b1/3p4/P2n1n2/R2PBr2/Nkn2RQ1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 b5 c4 e5 b4 exf4 Rh3 Ba6 Rh5 axb4 Rh1 b3 Na3 b4 Nb1 Bb5 cxb5 Ra5 Nc3 Ra6 Nb1 Ra8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 Kh5 Kd4 e4 f5 g4 c5 b6 d5 b7 h6 Kg6 b2 Kf7 c4 g6 f3 g5 f2 e5 b3 a3 c3 e6 f4 g7 c2 g6 f3 e7 Ra5 e8B Ne7 g8B Nec6 g7 Nd7 b8Q Rh7 Qe2 Be7 Qe6 Nc5 Rh3 Nd3 Qg3 Bg5 Rh1 Qd7+ Kf8 Rb5 Be2 f1N Qe1 f2 Ra2 Na5 Qa6 Nh2 Be6 Nf3 g8B f1R Nc3 b1R Ne4 b2 Nh3 Re7 Nf4 Rf2 Rf1 Rc5 Nh5 Rc6 Qb6+ Kc4 Qa6+ Kb3 Ng7 Be3 Nd6 Bg5 Nc4 d4 Qd1 Rd6 Ne3+ Rd5 Qe1 Ra1 Qd1 b1R Bb2 Rc1 Bc3 Rcb1 Qe1 c1N Nc2 Rb2 Bb4 Rbb1 Bc5 Rb2 Bb6 Rab1 Nb4 Rc2 Bd8 Rc6 Nc2 Ka4 Bh5 Rb8 Bhf7 Kb3 Be8 Rg2 Qf2 Rh2 Qg1 Rf2 Ra1 Kb2 Ra2+ Kb1 Na1 Be3 Qc4 Bf4 Qa6 Bg5
3q3b/2nr4/1N3B2/QbPpb1Bk/3N2p1/2BR1nq1/2Bn2Pn/3bKQRB w - - 0 1 illegal: Other
1q2NKb1/2NN1p2/1Bb1p1RP/4r2k/r1NqP2b/1BrN3b/6r1/1n2R1QQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 e6 Nd2 Ke7 f6+ Kd6 Nb1 Nc6 Nd2 Rh6 Nb1 Nce7 fxe7 Rh8 Kf2 Ke5 Kg3 Kf6 Kf4 Kg6 Ke5 a5 Kd6 a4 h4 g3 c4 a3 b4 a2 c5 d3 b6 d2 e3 g2 b7 Ra5 b8Q Bb7 b5 Nf6 b6 Bc6 b7 Nd5 Ba3 Nc3 Ne2 g1Q Qa8 Kh5 b8N g5 Nc1+ g4 Na6 Qb8+ Nc7 Rb5 Qe1 d1B Nd2 g3 Nc4 g2 Nd3 Nb1 e4 Bg4 Qa7 Bh3 Bc1 Rb3 Be3 Rc3 Bf2 Bh6 e8N Bg5 Be3 Qf2 Rg1 Bf5 Bd4 Bh7 Qc1 Bg8 Be2+ Kg6 Bd1 Rh5 Bb3 Bd8 Qd1 Re5 h5+ Kh6 Re1 g1R Qf3 Qe3 Qh1 Rg2 Rg1 Kg5 h6 Kg4 Qb6 Bh4 Qa7 Kg5 Ke7 d5 Kf8 Kh5 Qb6 Qf2 Be3 d4 Qa7 Na3 Rae1 a1R Qb6 Nb1 Qa7 Rh2 Rg6 Rg2 Qb6 Ra4 Qa7 Ba8 c6 Qg1 Nb4 d3 Bb6 d2 Nd3 Rb4 Qa1 d1B Qa7 Bg4 Qa1 Na3 Qc1 Qd4 Qe3 Qd7 Qeg1 Bh3 Na6 Qd4 c7 Rh2 c8N Rbb5 Ba7 Rg2 N8b6 Rb4 Nd7 Ra4 Bb6 Bc6 Nc7 Nb1
3q2br/n2b4/N1p5/1RRr3r/RB1R1bp1/q1KP1P1p/1R1QN3/Q3nB1k w - - 0 1 illegal: No proof kernel
1n2Br2/4RQ2/pkb4R/q7/2Kb1PNN/p1B1R2P/1q1b1pR1/r2n1RnQ w - - 0 1 illegal: No proof kernel
2k4b/b2p2Q1/RQb2R2/1q2Q1Pq/Pn2KBr1/3rnQNp/NQB4p/7n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 Kd2 e5 Kd3 b5 a4 h5 c4 e4+ Kd4 b3 f4 e3 g4 b4 f6 e2 f5 e1B c6 h3 c5 b2 c7 h4 c6 b3 Qd2 Ne7 Bd3 Bf2+ Ke4 Ba7 Bc2 Bg7 Ne2 Na6 Ng3 Bb7 c8Q Nd5 c7 Bc6 Qb7 Nab4 Nc3 b1N c8Q b2 Qb6 Ne3+ Qd5 Rh5 Na2 Bh8 Qcb7 h2 g5 h3 Rf1 Rb8 f7+ Ke7 Rf4 Qe8 Rh4 Rh7 Rh6 Rc8 Qb8 Rc7 Q8b7 Kd8+ Re6 Rh5 f8Q Rh7 Qfc5 Qh5 f6 Re7 f7 Nd2+ Kf4 b1Q f8Q+ Re8 Qg7 Ndf1 Qf3 Rf8+ Ke5 Rf4 Rf6 Qb3 Rb1 Rg4 Rb2 Qd3 Rb3 Qa6 Rd3 Qb5 Rdd6 Nd1 Kf5 Nf2 Bf4 Nh1 Qcd5 Ne3+ Ke4 Nd3 Qd4 Rc8 Qb2 Nb4 Qb6+ Rc7 Kd4 Kc8 Qe5 Ba8 Rde6 Rc5 Rd6 Rd5+ Ke4 Bb7 Q6d4 Ba8 Ra6 Bc6 Qb6 Rd3+
B1q2NqB/1p3n2/2R2n1P/2p1R1r1/N3pn1Q/K2N4/2P1b1QN/k2N1rrb w - - 0 1 illegal: No proof kernel
1NnQ1nrR/2K5/3R1Brb/3b2b1/Q1pq4/1pBPP2n/1N4p1/2BnB1kB w - - 0 1 illegal: No proof kernel
k6B/B1qR1b2/K1n1np2/3PNRBQ/B5P1/r1pNp1B1/1r1n4/bnb2Q2 w - - 0 1 illegal: No proof kernel
3R2R1/2Qq2n1/p2b2Pr/K2Nb2B/1p1Q4/pP1Q1Q2/k2N2rn/1rBQb1b1 w - - 0 1 illegal: No proof kernel
2r4n/1N4bp/k5qN/B1B1bNK1/N1bp2Qn/p1P4r/1rN2RRP/4Q1r1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g6 f6 Bh6 Bd3 Kf7 Be4 Ke6 f5+ Ke5 f7 Kd6 f6 Bf8 Bf5 gxf5 Ke2 Kc5 Kf3 Kb6 Kf4 e5+ Kg5 d5 b4 a5 g4 f4 Ra2 f3 Qe1 e4 Bd2 d3 Ne2 d4 Rf1 e3 Ng3 f2 Na3 a4 Nf5 Be7 f8N e2 Nd7+ Ka7 b6+ Ka6 b7 Bf8 Nb6 Ne7 f7 Bg7 f8B Nd7 b8Q Qe8 Qg3 Ng6 Bc5 Nde5 Qf3 Rb8 b5+ Ka7 Qh3 Nh4 Ba5 d2 c3 d1R Nc2 a3 Na4+ Kb7 b6 Neg6 Qg2+ Ka6 b7 Be6 Rg1 f1R Qf3 Rg8 Rg2 Rg1 Qh3 Rc8 b8N+ Kb7 Rf2 Nh8 Nc6 Rd2 Nd8+ Ka6 Nb7 Qg6+ Kf4 Qf7 Na1 Bf8 Rg2 Bc4 g5 Rg7 g6 Qg8 Qhg3 Re7 Rc2 Re3 Qg4 Rh3 Kg5 Qe6 g7 Qb6 g8N Bg7 Qd1 e1B Ngh6 Bg3 Qe1 B3e5 Ra2 Rd1 Raf2 Rb1 Nc2 Rb2 Qh5 Qe6 Qg4 Qg6#
nRb2Q1N/2N3p1/1pbpb1Q1/2BqQRr1/1PkrP1n1/4b3/1n6/1K1BQ2Q w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 d4 exf4 a4 cxd4 a5 b6 a6 Qg5 Kf2 Qd5 Ke1 Qb7 axb7 Kd8 Bh3 Ke7 Bf1 Ke8 Kd2 Ke7 c4 Kd6 Kc2 Kc5 e4 f5 h4 a5 h6 a4 h7 a3 h5 a2 h6 f3 Na3 f4 Qe1 f2 Nh3 f3 Nf4 Na6 b8Q Nc7 Nb5 Bd6 Be3 Ra5 Ng6 Bf4 Be2 f1B Bd1 Na8 Nc7 Bh3 Rf1 f2 b3 Be6 b4+ Kc6 c5 d3+ Kc1 Nf6 Kb2 Rg8 h8Q d2 h7 Rd8 Qf8 Ng4 h8Q Bg5 Bd4 Be3 Qh1 Rb5 Rc1 a1Q+ Kc2 Qa6 Nh8 Qb7 Kb1 Ra5 Qf5 Rb5 Qg6 Ra5 Na6 Kb5 Qe5 Qc6 Rc3 Qd5 Ra3 Kc4 c6 Rc5 c7 Ra5 Bc5 Rb5 Bc2 d1N Ra4 Nb2 Bd1 Bb7 c8Q Bc6 Nc7 Ra5 Rg1 f1B Ra2 Bh3 Rf1 d6 Ra4 Rf8 Rf2 Rf5 Qf8 Rg5 Rf5 Bc8 Ra2 Ra3 Ra1 Rd3 Ra7 Rd4 Rb7 Nf2 Rb8 Bg4 Rf7 Bge6 Rf5 Ng4
2b1KN2/1q2Npk1/1B5p/n5p1/1r3RPN/P1b1Nb2/1r1NB2Q/R2Qbn1r w - - 0 1 legal: proof: f4 a5 h4 g5 b4 d5 c4 axb4 cxd5 e5 h5 exf4 Bb2 Qd6 Bc1 Qg6 hxg6 Bh3 Rh2 Bf5 Rh1 Bc8 Kf2 b5 Kf3 c5 Ke4 f3 Ke5 h6 e4 f2 g4 c4 d4 b3 d6 b2 a3 b4 d7+ Ke7 d8N c3 d5 b3 g7 c2 d6+ Ke8 d7+ Ke7 Ne6 Nf6 Nf3 Ra4 Nbd2 b1Q Nh4 b2 Be2 Rb4 Rf1 Nh5 g8Q Ng3 d8N Ke8 Kf6 Nc6 e5 Na5 Qg7 Bc5 Nc6 Bd4 Ne7 Bc3 Nf8 Rg8 Qg6 Rh8 Qh5 Rg8 Rh1 f1B Rh2 Bh3 Rf2 Bg2 Rf4 Rh8 Kg7 Bf3 Kf6 Nf1 Kg7 Bd4 Kf6 Bf2 e6 Be1 Kg7 Qa2 Kf6 b1R Bb2 c1B Bd4 R4b2 Bb6 Qd5 Nef5 Ra2 Nh7 Nh2 e7 Rf8 Qa4+ Qd7 Bd4 Bcb7 Ne3 Bb2 Nhf5 Bg3 Kg7 Rh1 Qd1 Nf1 Qh2 Qb5 Nh4 Bc3 Kf6 Rb2 Kg7 Kd7 e8N Ke6 Nd6 Be1 Ndf5 Rb8 Ne7 Bc8 Kf8 Qd5 Ke8 R8b4 Bb6 Qb7 Nf8+ Ke5 Rd4+ Kf6 Rf4+ Kg7
1b2B3/5p2/2PNk3/1B1pnRBQ/KP1br2R/1p5n/B1rq1Q1b/3b1BNn w - - 0 1 illegal: No proof kernel
2N1b3/1R1Bp1nr/6p1/rB1Qr2R/1pnP3K/nP1QB1B1/Nk2bB2/1q3r2 w - - 0 1 illegal: No proof kernel
1rQb4/R2P1BK1/1P1nBn1R/r1Q3bB/N4B1p/1N2bn2/1p3p2/1q1bk1B1 w - - 0 1 illegal: No proof kernel
B4Q1q/NpK1n2b/P2P1nR1/n1N4k/7N/1pr3r1/1r2Rnp1/N1bNB2Q w - - 0 1 illegal: No proof kernel
kN4r1/bp1N2p1/2NQ4/2R1rPr1/np3rnK/2NP2BB/1Nb1Qq1R/b7 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 Kf2 e5 Kg3 c5 h4 Kc7 a4 e4 d3 e3 d6+ Kc6 d7 e2 a5 e1R f6 c4 h5 c3 a6 c2 f5 Qe8 d8N+ Kc7 a7 Re3+ Nf3 Qe6 f7 Bc5 f8N Nd7 h6 Qa2 h7 Re5 Nd4 Ngf6 Kh4 g3 Rh2 g2 Bf4 c1B N8c6 g1R Bg3 Qf2 Nb8 Bb2 Qe2 Ng4 Nc3 Nb6 Ra5 Ba1 Ndc6 Na4 Bh3 Be6 Nfd7 Bb3 Rb5 Re8 h8Q Bc2 Qh6 Re6 Qf4 Rf1 Qd4 Rg6 Qd6+ Kc8 Ra5 Bb6 Rc5 Rg5 Na6 Rb8 a8N Ba7 N8c7 Qg1 Nd1 Rf4 Nb5 Qe3 Nbc3 Qf2 Qd4 Ra8 Nab8 Kc7 Nb2 Kc8 Nf6 Kc7 Qd6+ Kb6 Na6 Rg8 Nab8 Rfe4 Rd5 Rf4 Na6 Bb8 Rc5 Qe1 Nd8+ Ka7 Nd7 Ka8 Nc6 Ba7 Nab8 Qf2
n3q1K1/B3B3/1Q2BNnr/P2rB3/2R1p2Q/rp1pBb1q/kN1b3P/1r4R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 g5 Ke4 b5 Ke5 d5 a4 d3 c4 d4 f4 e6 c5 d2 f6 d3 h6 g4 h7 g3 c6 g2 c7 b3 f5 b4 Nh3 g1R Ng5+ Ke8 f7+ Kd7 f6 Kc6 Na3 Kc5 Qh5 d1Q Qh4 b2 a5 b3 Nc4 Kb4 Ne4 Na6 Bh3 Qc2 Be3 Bb7 c8Q Qe8 Qd8 Qg2 Rc1 Nc7 Qd4 Bg7 f8B+ Ne7 Bf5 Rd1 Rg1 Qh3 Kd6 e5 f7 Ra7 Be6 Na8 Rc2 Ng6 Rc1 b1R Nb2+ Ka3 Rc4 Ra1 Qc5+ Ka2 Qc6 Bf6 Bg7 Rf1 f8B Kb1 Qb5 Ra3 Qa6 Rg8 h8B Bd5 Qc6 Ka2 Qb5 Rf7 Ba7 Re1 Qb6 Bg5 Bh6 Rf5 Bf6 Bd2 Be3 Rb1 Bh8 Qb8+ Kd7 Rg7+ Be7 Rh7 Bg7 Rh6 Bgf6 Qh8 Bg7 Nf8+ Ke8 Rg5 Kf7 Ng6 Bgf6 Qe8+ Kg7 Qa4 Kg8 Qb5 Nd6 Bf3 Ne8 e4 Bg7 Rc5 Be5 Rd5 Nf6 Qe8+
N1r2nN1/8/2k1P1N1/1NqnK2Q/N1Q4p/2rpqR1B/1p2R1PB/2r1rbb1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 f5 Kd3 d5 e4 Kd7 a4 b5 c4 h5 a5 f4 g6 h4 a6 b3 c5 f3 e6+ Kc6 e5 f2 a7 b4 g7 b2 e7 b3 e8N Qa5 e6 Qa3 Nf3 Nd7 Be2 f1Q Ra2 Ne7 g8N Qg1 Bf4 Rh5 Nc3 b1R Rh3 Rc1 Nc7 Ba6+ N7b5 Rc8 a8N Rh8 Rd2 b2 Bh2 Bh6 Rg3 Nf8 Rc2 Qa5 Na4 Be3 Rh3 Qge1 Rg3 Bg1 Ne5+ Kb7 Ng6 Kc6 Bg4 Qec3+ Ke2 d3+ Kf3 d2+ Kf4 d4 Bh3 Nd5+ Ke5 Qd3 Qe2 d1R Qh5 Re1+ Re2 Rh7 Rf3 Rb7 Na3 Rb3 Nb5 Rbc3 Ree3 Kb7 Re4 Qe3 c6+ Kb8 c7+ Kb7 Nf4 Kc6 Ng6 Rb8 c8Q+ Qc7+ Nd6 Bf1 Qa6+ Qb6 Qc4+ Qc5 Nb5 d3 Nac7 Qe2 Na8 Rc8 Ree3 Qd2 Re2 Qe3+
Q6N/2q1KpqQ/1p3RB1/N2p4/nBBq3b/n1b1BPr1/P2q2k1/3RB1r1 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 c5 b4 axb4 gxh5 cxd4 e5 d6 e6 Bd7 Bb2 Qa5 Ba3 Kd8 exd7 Kc7 Bb2 Kc6 Bc1 Qd8 Kd2 Kd5 Kd3 g5 h4 e5 h6 g4 h7 g3 h5 b3 h6 b2 Nh3 g2 Nd2 g1Q Nc4 b1Q Na5 b6 Be3 Nc6 Qh5 Qc7 d8Q Qb4 Rd1 Nge7 c3 Ra7 Qa8 Rg8 h8B Bg7 h7 Bf6 Be2 Qg7 Rhf1 Bg5 Qh6 Bh4 Bh5 Ra6 Bg6 Qb2 Qe8 Na7 Qa8+ Qb7 Qh5 Nb5 Qf5 Na3 c4+ Kc5 Nf4 Nd5 Ke4 Qd2 Qh3 Qc7 Kf5 Nc3 Qhh1 d5 Qh2 Kb4 c5 e4 c6 Kc5 Qh3 Na4 Qh1 Qb8 c7 Qa7 c8B Qc7 Bd7 Kd6 Qh3 d3 Bb5 Ra7 Bc4 Ra6 Bd4 e3 Qh1 e2 Be3 e1B Qe4 Qf8 Bc3 Qg7 h8B Ra7 Nb3 Ra5 Qh1 Rb5 Na5 Rb1 Qe4 Qb2 Bcd2 Qbd4 Bc3 d2 Qh1 Bg3 Qh7 Rb3 Kg5 Ke5 Bb4 Rb1 f3 Ra1 Rh1 Rb1 Rh6 Ra1 Rb1 d1Q Rc1 Qe2 Rd1 Bc3 Bf2 Qdd2 Be1 Kd4 Kf5 Ke3 Kg5 Qgd4 Be5 Qg2 Kf6 Qc8 Ke7 Bh4+ Bf6 Qg3 Bg5 Qf8+ Kd7 Qfg7 Ke7 Rc1 Bh5 Ra1 Ng6+ Qgf4 Nh8 Rc1 Bb3 Ke2 Rd6 Kf1 Bg6 Kg2 Bc4 Rb1 Rf6 Qb8 Bb5 Qc7+ Bd7 Q2f2 Be3 Qfd2 Bf5 Qcf4 Bb5 Qe2 Rd3 Qgg3 Bd2 Rg1 Bc4 Qgg5 Be1 Qc7+ Bd7 Qh6 Rd2 Rg3 Rd1 Qc8 Bg4 Qg7 Bh5 Qed2 Bg6 Qc7+
3Nq1k1/r3p1n1/1r1p1n1n/Q2b1BNP/2q1R2N/1R1p3B/1n1P1N2/b2N1QK1 w - - 0 1 legal: proof: e4 h5 a4 b5 axb5 f5 exf5 Rh6 Bc4 Rh7 Bf1 Rh8 g4 hxg4 b3 c6 Bb2 c5 Bd4 cxd4 c4 Kf7 h4 a5 f4 g5 Kf2 d3 h5 d6 f6 a4 c5 a3 b6 a2 b7 Qc7 f5 Qd8 b4 Qc7 b5 Qd7 c6 Ra3 b6 Ra7 c7 Bh6 Nc3 Bg7 Nh3 g3+ Kg1 g2 Nf2 g4 Rh4 Qe8 Rb1 a1N Rb3 Nd7 b8Q Bb7 c8B Bd5 b7 Nc2 Qa8 Na3 b8N Nc4 Nc6 Nh6 Nd8+ Kg8 Qa1 Nb2 f7+ Kh7 f8N+ Kg8 Ng6 Nf6 Kh2 g1N Ncd1 Ne2 Bh3 Nd4 Kg1 g3 Re4 g2 Nh4 Ne6 Qc1 Rb7 Qa5 Rb6 Qb1 Nh7 Qba1 Bc3 f6 Ng7 Ne3 Bd4 Qf1 Bc3 Ned1 Bd4 Kh2 Bc3 Bhf5 g1Q+ Kh3 Qgg6 Kh2 Qc6 f7+ Kf8 Bfe6 Nc4 Bh3 Ba1 Nb7 Nf6 Bcf5 Nb2 Kh1 Qc4 Kh2 Ne6 Kh1 Kg7 f8N Qf7 Nh7 Ra8 Kg1 Qe8 Ng5 Kg8 Nd8 Ng7 Bc8 Raa6 Bcf5 Ra7
r3NQK1/1BBPrb2/2qq4/2p1N1pp/1b3BRP/1k2Bq2/R1b1B3/Qr4n1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 dxc4 Ra3 Nc6 Ra6 Nd4 Ra2 exf4 Ra4 f3 Ra2 f4 Ra1 Nf5 gxf5 Be6 Bg2 Bd7 Bf1 Bc8 Kf2 Kd7 d4 Kd6 h4 Kd5 b4 h5 e4+ Kd6 b6 g5 b5 a5 e5+ Kd5 e6 c5 e7 a4 e8B c3 f6 a3 f7 a2 b7 c2 b8B Bb7 b6 Nf6 Bc7 Qd6 Be3 c1Q Na3 Bg7 f8Q Rh7 Nb5 Nd7 Be2 Ne5 Bg6 Bc8 b7 Bf5 b8B Bc2 Bgd3 Qc6 Nd6 Qd2 Ba6 Bf6 Qb1 Re7 Ne8 Qd3 Bb7 Kc4 Qf1 Kb3 d5 Qd1 d6 Bh8 d7 Qdd6 Re1 a1R Rh2 Rb1 Rg2 Bf6 Rg4 Bg7 Rc1 Bg6 Rc2 Bf6 Qc1 Bh8 Kf1 f2 Ra2 Nf3 Kg2 f1B+ Kf2 Bc3 Qe1 Nd2 Nf3 Bb4 Ne5 Nf3 Qd1+ Bc2 Qd4 Ng1 Qa1 f3 Kg3 Qb5 Kf2 Nh3+ Kg3 f2 Kf3 Qbb6 Bd3 Ng1+ Ke4 Qbc6+ Kf5 Bd1 Bb5 Bc4 B5a6 Bf7 Be2 f1Q+ Bf4 Be6+ Kf6 Bf7+ Kg7 Qff3 Be3 Bg6+ Kg8 Bdc2 Nf7 Qd1 Bcf4 Qdd5 Bbc7 Qdd6 Ne5 Bf7+
1n2R3/1R1pP2n/n7/5k1p/Br1QR3/N2rqrQq/1pb1q2P/K1R1BN1R w - - 0 1 legal: proof: f4 a5 d4 f5 b4 axb4 d5 e5 d6 cxd6 g3 d5 Bg2 d4 Bh3 Be7 Bf1 Bg5 fxe5 f4 Ba3 f3 Bc1 Bf4 gxf4 Qg5 Na3 Qf6 Nb1 Qd8 Kd2 Kf7 a4 Kg6 c4 h5 Kc2 b5 Kb2 f2 e4 d3 a5 d2 a6 b3 c5 b4 a7 Ba6 f5+ Kg5 f6 g6 c6 Bd3 c7 Qe8 c8Q Bc2 f7 Nf6 f8R Nh7 Rf4 Rf8 Bb5 f1Q e6 Qh3 e5 Rf7 Rh4 Kf5 e7 g5 e6 g4 Qc3 g3 Nf3 g2 Re4 g1Q Na3 Qe3 Ba4 Rf6 Qe1 d1R Qg3 Rd3 Bd2 Rf7 Rab1 Rf8 Ka1 b2+ Ka2 Qe2 Rbc1 b1N Be1 b3+ Ka1 Nd2 Qd4 Rf6 Rh4 Ne4 Nd2 Rf8 Nf1 Nc5 Rg4 Nca6 Re4 Qd8 e8R Qg5 e7 Qge3 Rc8 Rf6 Rc7 Rb6 Rb7 Rb4 Qh4 Nc6 Qg3 Rf8 a8R Ncb8 Qgg7 Rg8 Qg1 Rg3 Qg2 Rf3 Qg3 Nc6 Rg8 Ncb8 Re8 b2+
b1K5/6Nb/2NQq1R1/1NN1N2p/B1P4P/prnbpb2/1RQ2r1b/q5Bk w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 f4 gxf4 Ke2 Nd7 Kf2 Ndf6 Ke2 cxd4 Ke1 d3 Kd2 d4 Ke1 Nd5 exd5 Bg4 Nf3 Bh3 Ng1 Bc8 Kd2 Kd7 b4 Kd6 h4 Ke5 g4 Ke4 g5 h5 g6 f5 d6 a5 b6 e5 d7 a4 b7 a3 b8Q f3 g7 f2 b5 f4 b6 f3 b7 Qb6 d8N Ne7 g8N Nd5 Qd6 Bf5 b8N Nc3 Nbc6 Rb8 Nb7 Bh7 Nc5+ Kf4 Bb2 Kg3 Nh6 Bg7 Bc1 Rhf8 Rh2 Bf6 Bh3 f1B Bd7 f2 Nf3 Bg2 Qe2 f1B Nf5+ Kf4 Ng7 Kg3 Qe4 Kf2 Qf5 e4 Nfe5+ Kg1 Ra2 Qb3 Rb2 Qe6 Rh3 Be2 Rg3 Kh1 Rg6 Rb3 Qf2 Bd8 Qf5 Bc7 Qf2 Nd5 c4 Nc3 Be8 Bef1 Qe2 Rf2 Bd7 Na2 Nc3 Bb8 Nb5 Nc3 Ke1 Bc7 Qc2 Bf3 Bf4 e3 Bh2 B3g2 Bg1 Bf3 Na5 Ba8 Be8 Na2 Kd1 d2 Nac6 Bb8 Qd3 Bc7 Kc2 Nc3 Qe2 d1B+ Kd3 Nb1+ Ke4 d3 Kd4 Nc3 Qc2 d2 Bd7 Bd3 Be8 Bf3 Bd7 Qe7 Be8 Ne4 Kd5 d1Q Bd7 Qa1 Be8 Qg5 Ke6 Qf6+ Kd7 Nc3 Kc8 Qe6+ Qd7 Na4 Nd6 Bf1 Na5 Bb6 Nef7 Qf6 Qe7 Nc3 Ba4 Bd3 Nb5 Qd6 Nc6 Bc7 Qe5 Qf6 Qe6 Be5 Qd6 Bh2 Nfe5 Qe6+
Q3Bb2/3q1qBq/rB2p1R1/1nN1RnQ1/1qp5/2P1KP2/k1B1b2p/3BqN2 w - - 0 1 legal: proof: e4 c5 h4 f5 d4 fxe4 a4 g5 Rh3 gxh4 Rc3 b5 axb5 a5 Rh3 c4 Rh1 Ra6 Nf3 Rc6 Ng1 Rc5 dxc5 Qb6 Be3 Qc7 Bc1 Qd8 Ke2 Kf7 b4 Ke6 g4 h5 b6 d5 g5 h3 b5 d4 b7 Kd5 g6 a4 b6 d3+ Ke3 h4 g7 h2 c3 a3 c6 h3 c7 d2 Nf3 a2 Ne1 Qd6 Nd3 Rh6 Qg4 d1Q Nd2 Qb4 Nc5 Na6 b8Q Kc6 b7 Kb5 Qg5 Bg4 c8B Be2 f3 Nc7 Rg1 h1Q Bf5 Ra6 Qa8 e6 b8B Nh6 g8B h2 Rb1 a1Q Ba7 Ka5 Rg4 Nb5 Bf7 Qg2 Rg3 Qh3 Be8 Qh5 Bh7 Qf7 Ba3 Qda4 Re1 Qab1 Rg4 Nd6 Bc1 Qad7 Bb6+ Kb5 Qf4 Qc2 Rg6 Qcb1 Qg5 Nhf5+ Kf4 e3 Ba3 Bd3 Be2 Qc2 Bd1 e2 Nf1 Qcb1 Nb3 Ka4 Bc1 Nb5 Bd2 Ka3 Nc5 Bh6 Be3 Bf8 Bd4 Kb2 Bg7 Ka2 Ng3 Nh6+ Ke3 Qc2 Rg1 Qcb1 Nf1 Qc2 Rg2 e1Q+ Re2 Nf5+ Kf4 Qcb2 Re5 Be2 Ke4 Qb1+ Kf4 Ng3+ Ke3 Qbf5 Rf6 Qh3 Bhc2 Qh7 Rg6 Nf5+
1k2bQ1q/1p1pR1q1/1q1b1PQ1/1pr1BN1q/2rNQ3/Q2R1n1B/1P6/K2qQ3 w - - 0 1 illegal: No proof kernel forced: wxLB
R2Q1K2/pnr1nqn1/1Q1p1kpQ/1n1P1B2/6R1/1r1N2Qq/2B2bPr/1Q2N3 w - - 1 2 illegal: No extended proof kernel
1Q6/R1pnq2q/B1K3rR/2PR4/N2bR1RN/2r3pp/k1qr2P1/q1b3BQ w - - 1 2 legal: proof: e4 e5 b4 a5 f3 axb4 Bb2 d5 Bc3 dxe4 Bb2 e3 Bc1 e2 Kf2 e4 h4 g5 Ke3 Bf5 Kf2 e3+ Kg3 Be4 fxe4 Qd7 Kf3 Qd8 Rh3 g4+ Kg3 Nd7 Rh1 Nc5 Qe1 Ne6 Qd1 Ng5 hxg5 Qd4 Kh2 Qd3 Kg3 Qd8 Kf4 Kd7 Ke5 Kc6 a4 Kc5 c4 e1R d3 f5 g6 b5 a5 h5 a6 b3 a7 Kb4 c5 e2 g7 g3 d4 f4 d5 h4 d6 h3 Kd5 f3 e5 b2 d7 f2 e6 Rh6 e7 Nf6+ Kc6 Rb8 e8Q Qe7 a8R Rd8 g8R Bg7 Nc3 b1Q R1a2 Qh7 Be3 Kc4 Rb2 b4 Rd2 b3 Na4 b2 Ra7 b1Q Qc1+ Kb3 Rd6 Ka2 Nf3 Rd1 Qf8 e1B Ba6 f1Q Nh4 Bd2 Bf2 Qfd3 Re1 Qa1 Re4 Bh8 Rgg4 Qc2 Rde6 Rb8 d8R Rb3 Rd5 Rc3 Qb8 Nd7 Reg6 Bd4 Rgd6 Bg5 Rf6 Rdd3 Qh1 Bc1 Bg1 Rd2 Rfg6 Rh5 Rf6 Rg5 Rh6 Rg6+
2kbn1B1/1pN2Q1B/2rB1PpN/1KRpR3/2q2q2/2B2q2/Q1nPB2n/3r2n1 w - - 0 1 illegal: No proof kernel
R3r1b1/Nq1k1qp1/R3q3/Pp2B3/1Qb3RR/4bp2/q1Q2nP1/RNrBK3 w - - 0 1 illegal: No proof kernel
1B2n2N/npb5/1P3BKB/nk5r/3Q2qp/1rQR1nNp/4R1BP/2B1rr2 w - - 0 2 illegal: No proof kernel
N7/2q1RNk1/2BQ2Pr/p2bnRn1/r1pK3b/1NPpQ1B1/1r2p1N1/3bN3 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Kf7 Ke3 d5 g4 a5 b4 c5 f4 h5 c3 h3 e6+ Kf6 f5 h2 e7 h4 e8N+ Kf7 f6 h3 b6 c4 b5 Ba3 b7 Bd7 g5 Be6 g6+ Kf8 b6 Qd6 f7 Qd8 Nc7 Bf5 Qd2 Rh4 Kd4 Qe7 Bg2 Nf6 Nf3 Nbd7 b8Q+ Qd8 b7 Bg4 Rf1 h1B Ne1 e3 Rf5 Kg7 f8N h2 Be4 Ra7 Na8 Nh7 Qd6 Bd1 b8N Ng5 Nc6 Qc7 Nd8 Rb7 Nf7 Ne5 Qd3 Bb4 Nd2 Rh6 Nb3 e2 Bf4 Bg2 Bg3 h1R Qe3 Ba3 Bf3 Rb4 Rb1 Ra4 Qb6 Be7 Ne6+ Kg8 Nf4 Kg7 Qc6 R1h5 Be4 Bh1 Nfg2 Bd8 Kc5 d4 Bf3 d3 Kd4 Be7 Qd6 Bf6 Bc6 Be7 Nf4 Bd5 Rb2 Ne4 Nfg2 Bh4 Nc5 Ng5 Rb7 Rh7 Ra7 R5h6 Nb3 Rh8 Rb7 Rb8 Ra7 Qc8 Re7 Qc7 Nc5 Rb1 Nb3 Rb2
1r5r/1R2B1R1/1N1p2Bb/krp2bPQ/3pQqp1/8/nN1Pnn2/BK3BB1 w - - 0 1 illegal: No proof kernel
5QKQ/1Rq2B2/B4P1P/b3q2r/3k1B2/Bnpp2n1/pNr1B1Rp/2qN3b w - - 0 1 illegal: No proof kernel
brqqr3/Q7/3p3P/PBB1RQn1/N2pb2B/1k1NB2K/1pn1p3/5BbR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 f4 g5 Kf2 e5 Kg2 b5 c4 e4 a4 e3 h6 g4 f6 Ke6 f7 b3 f5+ Ke5 f6 b2 c5 Kd5 h7 b4 c6 g3 h5 b3 h6 e2 c7 Kc4 Kh3 g2 Nc3 b1B Nf3 g1Q Ne1 b2 Nd3 Bc5 f8Q Bd6 f7 Bb7 c8B Na6 Be3 Rb8 Ra3 Bc2 Qa1 Ba8 Ra2 Nb4 Ba6+ Kb3 Bb5 Bc7 Qc5 Bf4 f8B Bh2 Qf5 Nf6 Bc5 Re8 h8B Nh7 Bf6 d6 Bfg5 Bb1 Bh4 Qg8 Ra3+ Kc2 Qa2 Bg1 a5 Qe6 Na4 Qec8 Qf7 Ng5+ Kg4 Ba2 Qa7 B2d5 Kg3 Nf3 Kh3 Be4 Ra1 Kb3 Rc1 Na2 Ba3 Nb4 Rc5 Nc2 Re5 Bab7 Bb4 Ba8 Bc5 Ng5+
3NQnq1/1B3P2/1pBB1nNq/1Q2pr2/2R1rb2/BP4bp/K6p/B1R1n1k1 w - - 0 1 legal: proof: e4 d5 a4 f5 h4 fxe4 c4 g5 cxd5 gxh4 a5 b6 a6 Bb7 axb7 Bg7 Ke2 Bh6 Ke1 Bf8 d4 Kf7 Kd2 Kg6 Kc3 Kf5 Kb3 c5 g4+ Kg6 f4 h5 f5+ Kf6 g5+ Kg7 f6+ Kg6 d6 Kf5 d5 a5 g6 e3 d7 Ke4 g7 e2 d6 e1B Nh3 Bg3 Nd2+ Ke3 Ng5 Kf2 Nf7 c4+ Ka3 a4 b3 e6 Nf3 c3 Bg2 c2 N3e5 Ra5 Ng6 Rf5 Qd3 e5 Bc6 Rh6 Bb2 c1Q Qb5 Rh7 Rh2+ Kg1 Rc2 Qe8 d8B Nd7 b8B Rh6 Ka2 a3 Rc4 Rh8 Rb1 Rh7 Ka1 a2 Be7 Rh6 Ngh8 Rg6 Bb7 Rg4 Ng6 Re4 Bc6 h3 Bc7 h2 Bb8 Qf1 Rbc1 h4 Bb7 Nh6 g8B h3 Bc3 Bg7 Kb2 a1N Ka2 Nc2 Ba1 Ng4 Bc7 Nc5 d7 Bh6 d8Q Ne6 Ba3 Ne1 Bcd6 Qf4 Qa8 Qf8 Qae8 Qg7 Nd8 Nf8 Be6 Qg8 f7 Nf6 Bd7 Qh4 Bdc6 Bhf4 R4c2 Qhh8 Rc4 Qh6
1b1N4/QNn1pPNk/RbrN4/q2Q3p/2p3p1/q1b1BK2/2P1R1B1/r4nN1 w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 Bf5 h5 Bg6 hxg6 f5 Rh2 fxg4 Rh6 Qd3 Rh1 Qd8 Ke2 c5 b4 h5 f4 a5 d4 a4 f5 c4 d5 g3 g7 Kf7 b6 g2 f6 Kg6 f7 a3 b7 a2 b5 e3 b6 Kh6 d6 Kh7 d7 Ra4 Kf3 e2 Nd2 e1B Rh2 Ra8 Ne4 Nh6 g8N Ng4 Be3 Bc3 Qd5 Na6 b8Q Nc7 b7 Bfg7 Nh6 Bge5 Nf5 Ra6 Ned6 Rc6 Qa7 Rg8 Rb1 a1Q b8N Qa3 Na6 Qa8 d8N Re8 Bd4 Ne3 Ra1 Rf8 Nc5 Rg8 Ne2 g1B Bg2 Nf1 Ncb7 Be3 Ng1 B5f4 Qb6 Q8a5 Qa7 Bf2 Be3 Rh8 Bc1 Bb6 Be3 Rg8 Ra2 Rg6 Ng7 Re6 Bd2 Re1 Be3 Rb1 Bh3 Bfe5 Re2 Ra1 Bg2 Nb5 Nde8 Bb8 Ned6 Nc7 Rb2 Bbd4 Rb6 Bc5 Ra6 B5d4 Qa8 Bb6 Qa7 g4+
nK1Q1BQ1/RRP2pn1/B2N3r/Rb1q3k/q2b1pRr/1p2R3/3pP3/2r3N1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 axb4 Kf2 d5 Kf3 g5 h4 b5 a4 b3 c4 d4 Ke4 b2 Ke5 d3 h6 b4 c6 g4 h7 b3 c5 g3 c7 g2 c6 Bg4 c8R Ra6 h5 Nh6 a5 Nf5 h6 Bc5 Rh3 Ba3 Nd2 b1Q Re3 Ng7 Nc4 Bd7 Rc7 Bc8 Rb7 Qa2 Nd6+ Kf8 c7 Ra8 a6 Ke7 a7 Nf5 Kd5+ Kf6 Bd2 Kg5 Bb4 Nd7 Kc6 Rb8 a8R Bb2 Raa7 Nb6 Qd2 Qa6 Ra5 Kh5 Qd1 Bd4 Ba3 Rg8 h8Q Rg4 h7 Rh4 Qg8 Be6 Bc5 Ng7 Qd2 Bc4 h8R+ Kg4 Rh7 Qg5 Rh6 Na8+ Kd7 Re8 Rg6 Re6 Kc8 Kh5 Kb8 Qd5 Rg4 Rf6 Nc8 Bb5 Bf8 Rh6 Nd6 Be5 Qb4 Bb2 Qd4 d2 Qf6 Be5 Qd8 Bf6 Nf3 g1R Bh3 Rh1 Ng1 Bd4 Bg2 Qac6 Be4 Qcc4 Bd3 Qa4 Bc4 Bd7 Ba6 Bb5 Nh3 Re1 Ng1 Rc1
3Q3q/P1rN2qp/BBQ3q1/1N2K3/1b1p1npN/2Ppn1R1/2NN3k/2R2b1r w - - 0 1 illegal: No possible last move, all moves rejected
R1N1bN1b/Q5B1/2BqP3/P2r3k/1npKRn2/BQ5r/rpp2p1B/5rB1 w - - 0 1 illegal: No possible last move, all moves rejected
1Nkn3B/b2n1p2/1n5n/1K1P1pQQ/2rRQ3/2ppN2b/P2Qr2R/3BqQ2 w - - 0 1 illegal: No proof kernel
4n2n/np2q1p1/1Q1n1kPB/2Rp4/1NB2K1b/p1N1P2Q/2BR1B1r/1b1r1B2 w - - 0 1 illegal: No proof kernel
2b5/N2qr2k/2NQ4/1r2qp1b/B1N5/1pNnb1pR/pPrBR2P/3Q2KN w - - 0 1 legal: proof: f4 b5 g4 h5 c4 hxg4 f5 d5 cxd5 Nc6 f6 Nb4 Bg2 exf6 Bh3 f5 Bf1 f4 a3 Nc6 a4 b4 Bg2 Nd4 Bf1 Nb5 axb5 Qg5 Ra2 Qf6 Ra1 Qd8 Kf2 f5 d4 Kf7 e4 Kg6 d6 a5 d7 c5 d5 f3 b6 b3 e5 a4 b7 c4 b8Q c3 e6 g3+ Ke3 f2 e7 g2 e8N a3 d6 a2 Kf3 c2 Nh3 g1Q Nc3 Ne7 Bb5 f1B Bd2 c1R Nf2 Nd5 Ba4 Rc2 Rc1 Ra7 Qc7 Qe7 d8N Qe5 d7 Bc5 Qd6+ Kh7 Nc6 g5 d8N Re7 Na7 Be3 Ndc6 Bh3 Ke2 Nb4 Kf3 g4+ Ke2 Qg2 Re1 Qgd5 Nh1 Bf4+ Kf2 g3+ Kg1 Nd3 Re4 Bh6 Rh4 Bg4 Rh3 Bh5 Nf6+ Kg7 Nd7 Kh7 Nb6 Qde6 Nc4 Qd7 Qg4 Rg8 Re1 Rg6 Qd1 Be3+ Kf1 Rg4 Re2 Rd4 Kg2 Rd5 Kf1 Rb5 Kg2 Bf4 Kg1 Be3+
R5rn/BPNb2p1/2r2R2/p2p4/Nbb4B/1qBkB1P1/Q4p1K/bb1BQ3 w - - 0 1 illegal: No proof kernel
2Bq2Q1/B2R3b/2pbp1bN/1rr3K1/P3R3/r3N1Nk/n1P3pp/b1N1QN2 w - - 0 1 illegal: No possible last move
7q/4pQ1p/rr1n4/Nk2p1rB/2NB1RnP/1B5p/PqKp1bB1/2B1Q1R1 w - - 0 1 illegal: No proof kernel
k2NRN2/pn5N/1p1pR1K1/N5p1/P2p1bP1/Q3r1r1/p3Q1bB/qbBN4 w - - 0 2 illegal: Other
Q3Kb1B/4BB2/1pQbrB2/2nq1bRp/1P3R1P/nrq1b3/1q1NkB1N/b7 w - - 0 1 illegal: No proof kernel
1nRrb2N/1q2RB1k/n2Rr1r1/2rnp1p1/NBr3P1/r5K1/1RQbP3/Q5R1 w - - 0 1 illegal: No proof kernel
1QBrbqBk/1qBq4/B1pp3K/b1PP3N/1q3N2/8/2nr2Rq/R1QB1n1q w - - 0 1 legal: proof: f4 e5 h4 exf4 b4 g5 hxg5 a5 Rh4 axb4 Rh5 Na6 Rh1 Nb8 Kf2 f5 Kf3 Kf7 a4 Kg7 c4 b5 e4 h5 g4 b3 d4 b2 e5 b4 e6 h4 e7 b3 e8B h3 a5 h2 g6 c6 d5 Na6 g5 Nh6 Bf7 Ng4 Qe1 Nb4 a6 Nc2 a7 Bb4 c5 Ba5 Ba6 Nge3 Nc3 b1Q Nce2 b2 Ng3 Nf1 N1e2 d6 Rg1 h1Q+ Rg2 Rh2 Bd2 Qe7 Qc1 Kh8 Nh5 Qd7 Bb4 Rb8 a8Q Qa2 Qb7 b1Q Be8 Ra8 Qb8 Qc4 Be1 Qbb7 Bh4 Qcb4 g7+ Kh7 g8B+ Kh8 g6 Qg1 Rg4 Rg2 Bd8 Qh2 Nd4 Rd2 Ne2 Bc7 Be6 Ba5 Qa7 Rb8 Bc7 Ra8 Rg2 Rb8 Kf2 f3 B8f7 Ra8 Qb8 f4 Bh3 Qg4 Be8 Bd7 Bf7+ Be8 g7+ Kh7 g8B+ Kh8 Be6 Qg7 Beg4 Qd7 Qa7 Rd8 Qb8 Qh7 Bc8 Qd7 Bg4 Qg3+ Kg1 f2+ Kh1 f3 Nef4 Nfe3 Nd3 Qe5 Ndf4 f1Q+ Kh2 f2 Kg3 Qh1 Bd1 Nf1+ Kf3 Nh2+ Kg3 f1Q Kh4 Qeb2 Kg5 Qa2 Ne2 Qf8 Nef4 Nf1 Qb1 Qff7 Kh6 Qab2 Qc1 Qe5 Nd3 Qeh2 Nf4 Qf8+
1B2N2R/1b1k3b/p1rnq1QR/P5NB/n2r1p2/5R2/rb2bP2/nK1RRnQ1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 g4 f5 a4 e5 c4 h5 d4 b5 Kd2 b4 Kc2 h3 c6 b3+ Kb2 h2 c7 e3 d5 e2 c5 e1R d6 h4 c6 e4 g5 f4 g6 h3 g7 e3 Qd3 e2 Qh7 Ba6 c8Q Ne7 g8R Nf5 c7 Rd1 Be3 e1N Ne2 Rd4 Na3 Nc2 Nc4 Nd7 Rg3 Nc5 Nc3 Bg7 Kb1 b2 d7+ Ke7 Bd3 Nd6 Bg6 Qg8 d8R Qe6 Bh5 Rg8 Rd1 h1N Rf3 h2 Qg6 Ng3 Ne4 h1B Ng5 Nf1 Rf8 Rh8 Rf6 Rh6 Qg8 Kd7 c8R Bg2 Re8 Bb7 Re1 Bh3 Rb8 Bf5 Rbf8 Bd3 Rb8 Be2 a5 a6 Re8 Na4 Rb8 Rd2 Ba7 Rd4 Rbf8 Rc8 Bb8 Rc7 Q8h7 Rc8 Rh8 Rc6 Qg8 Rd2 Raa3 Na1 Rad3 Rc2 Rdd1 Rd2 Na3 Rcc2 Nb5 Rd4 Nc7 Rcd2 Rb3 Rc2 Ne8 Rcd2 Ka2 b1B+ Ka3 Ba8 Qd3 Nf5 Nh3 Rd6 Rb6 Qc4 Rb3 Bb7 Qc2 Rg6 Rf3 R6d5 Rb6 Bc3 Re6 R5d4 Qd3 Rf6 Qg1 Qc6 Ng5 Qe4 Re5 Rc6 Re6 Nd6 Reh6 Qe6 Qf5 Rb2 Qf6 Bh7 Qg6 Rb3+ Ka2 Ra3+ Kb1 Ra2 Qg2 Bb2 Qh2 Bb5 Qg1 Be2
Rb1q1R2/1R1Q4/1BR1pnk1/Q2rR1p1/1N1KnrN1/nbr1P1P1/2b5/r2b3B w - - 0 1 illegal: No proof kernel
1k2q3/4q2R/2n4p/rpn1R2b/1PNn1BQ1/1b1B2bb/1R2NrnP/R2R1K1Q w - - 0 1 illegal: No possible last move, all moves rejected
q1nq2bB/1pr1b3/N1kpQ1B1/2b1R3/1qbP4/RP3K1R/2qR1N1r/1Q1Rn3 w - - 0 1 illegal: No proof kernel
1nr1RQrB/Q3BB1b/n2K2np/1p4q1/k3N3/r3qn1P/1PNr4/1RB1b2B w - - 0 1 illegal: No proof kernel
2Bb1nk1/KQqp3b/p1Q2n2/3PQ1rp/b3N3/P2Q1qr1/1RRN2q1/Qr2B3 w - - 0 1 legal: proof: f4 e5 h4 exf4 b4 c5 bxc5 g5 Ba3 gxh4 Bb2 Qb6 Bc1 Qd8 Kf2 f5 e4 Kf7 d4 h5 g4 b5 c4 f3 Ke3 b4 c6 h3 c7 f2 a3 h2 d5 f4+ Kd4 b3 c5 f3 g5 b2 e5 Bb7 c8Q Qa5 e6+ Kg7 g6 Ba6 e7 Bd3 e8Q Na6 c6 Qb5 c7 Qc6 Nc3 b1B Bd2 Bdc2 Ra2 Ba4 Qe5+ Nf6 Be1 Be7 Qd3 Nc5 Qb7 Rag8 c8Q Qc7 Ne4 Bd8 Rc2 Kf8 Be2 f1Q g7+ Kf7 Qca8 f2 Nf3 Qg2 Nfd2 f1Q Qc6 Qf4 Qab7 Ne6+ Kc4 Nf8 Kc5 Qff1 Rg1 Qgf3 Rg2 h1R Rh2 Q1g2 Bf1 Bb3 Kb5 Ba4+ Ka6 Rh6 Qa1 Rg6 Rb2 Rh8 Be2 Rg5 g8Q+ Ke7 Qg6 Rg8 Qf5 Kf7 Qe5 R8g7 Rc2 Kg8 Rb2 Qfh3 Qdb3 Ne6 Nc3 Qf2 Q7b4 Qhg2 Nc4 Bh7 Ne4 Qh3 Bc3 Rb1 Be1 Qff3 Bd3 R7g6 Rhc2 Qhg3 Ncd2 Rg4 Bb5 R6g5 Qd3 Nf8 Qbb3 Qa5+ Kb7 Qgf2 Ba6 Rg3 Ka8 Qc7 Bc8 a6 Qbb7 Qh2 Ka7 Qhg2
r2rQ3/2q3pR/2pN1Qnb/bNB3P1/1KR2rnB/pbP5/5Bbk/bBB5 w - - 0 1 illegal: No proof kernel
6bB/1pbq3R/n2bRR2/1kN1r3/RPp1p1B1/n1bQ4/b1P1RKrq/4N2Q w - - 0 1 illegal: No possible last move, all moves rejected
1nBq4/2pNk3/B3p1Qb/bnr1P3/Q1r1q3/q2b1b2/R1P1N1pK/1B1R1BB1 w - - 0 1 illegal: No proof kernel
5q2/1pbN2kn/1PKB4/QpR1b3/BrnRB2r/1b1Bpr2/b3P2Q/Nr1B4 w - - 0 1 illegal: Other
1r1B3b/2Bn1pb1/NB3P1q/1krp1R1r/4Q3/p2KR1Q1/PB4Bp/n1Nbn3 w - - 0 1 illegal: No proof kernel
2r1B3/5ppn/Nk2rq1N/Nn2qbQK/3q1b2/1p3PP1/1BRnN1pR/5QN1 w - - 0 1 illegal: No proof kernel
kbNrq2r/1b4b1/B4BNB/2p1r1b1/nppBQ1R1/1PRp4/B1PQK3/5n2 w - - 0 1 illegal: No possible last move
Nk5B/p5b1/2Q2n2/1p4pN/n2p1bNb/PB1P1qr1/3R2QK/1bqrRNN1 w - - 0 1 legal: proof: e4 f5 g4 fxe4 b4 c5 bxc5 h5 Qe2 hxg4 Qf3 Rh7 Qd1 Rh8 h4 d5 f4 Kd7 Kf2 Kc7 Kg2 e5 c4 b5 c6 g5 c5 e3 f5 g3 h5 e2 a3 e1Q h6 e4 f6 e3 h7 e2 f7 Bb7 Qc2 Qd7 Bb2 Bg7 f8N Na6 Ra2 Qc1 Ne6+ Kc8 c7 e1B Bc4 Nb4 d3 Na6 Nf4 Qd8 Bb3 Qf8 Nd2 Nf6 Nf1 Bd2 Kh3 g2 Nh5 Bf4 Be5 d4 Qe2 Qe1 Rd2 Bd5 Qg4+ Kb7 c8N Qc1 Nb6 Rc8 Na8 Rc7 c6+ Kb8 Qf3 Nc5 Qg3 Qf7 Kh2 Re8 h8N Na4 Ng6 Be6 Bd1 Ba2 Bc2 Bb1 Bb3 Nd5 Bf6 Re3 Ne5 Re7 Ng4 Re1 Rb2 R7e3 Re2 Rd1 Rd2 Bh6 Bh8 Bg7 Kh3 Nf6 c7+ Kb7 Nf3 g1B Qg2 Bf2 Rg1 Kc6 c8Q+ Kd6 Rh1 Bh4 Qc5+ Kd7 Qd5+ Kc8 Qc6+ Kb8 Rg1 Qf8 Rh1 Re2 Ng1 Rf2 Nhg3 Rf3 Kh2 Be3 Nh5 Rg3 Bc4 Bf4 Bb3 Qf7 Ne2 Qg6 Nfe3 Qe8 Re1 Qe6 Nf1 Qe3 Ng1 Qf3
QR1rkNQR/b1np3b/p3n2q/6B1/PK1qq3/rR2N1p1/1p1PR1B1/Rq6 w - - 0 1 illegal: No possible last move, all moves rejected
qbn1R3/1p1k1KN1/6bR/1prN1prn/pQ6/r2R1P1Q/P2Rp1B1/R2qB3 w - - 0 1 legal: proof: e4 h5 g4 d5 gxh5 dxe4 b4 c6 b5 cxb5 Ke2 f5 Ke3 e5 d4 a5 h4 g5 c4 g4 h6 a4 h5 g3 c5 g2 h7 Be7 d5 Nf6 h6 Bd7 f3 Nc6 d6 Na5 c6 Rb8 c7 Rg8 h8R Bc8 h7 Nh5 Nc3 Ra8 Rh2 Kd7 Nd5 Rg5 Qd4 Nc6 Ne2 Na7 Ng3 g1Q+ Rf2 Bf8 Bg2 Qd1 Bd2 Be7 Be1 Qf8 Rd2 Bd8 Kf2 e3+ Kf1 e2+ Kf2 e4 Ke3 Bf6 Qb4 Be5 Rd3 Bf4+ Kd4 e3 Kc5 Qd8 Re8 Be5 h8R Rb8 Rh6 Bf4 Bd2 e1R Kd4 Re2 Be1 Rc2 Rd2 e2 Rd3 Rc3 Rd2 Nf6 Nh5 Ra3 Ng7 Nh5 Rd3 Kc6 Rd2 Be6 d7 Bd6 Rd3 Bg8 Rd2 Bh7 c8Q+ Qc7 Qd8 Qc8 Qf6 Ra8 d8R Qb8 Qe5 Nc8 Qh2 Ra6 Qh3 Qa8 Ne3 Kc7 Kd5 Rc6 Ke6 Rc5 Kf7 Bh2 R8d3 Bd6 Qb2 Kd7 Nd5 Bb8 Qb4 Bg6+
1nb1BnQ1/1n2Q3/6Pk/2N3q1/2bpnqR1/NnP1Q2B/4Q1K1/1R1B4 w - - 0 1 legal: proof: d4 a5 b4 c5 a4 cxd4 e4 b5 axb5 f5 exf5 a4 b6 Ra7 bxa7 Qb6 b5 Qd8 Kd2 g5 Ke1 h5 Bb2 Rh6 Bc1 Ra6 bxa6 Qb6 Bc4 Qc7 Bf1 Qd8 f4 Bh6 f6 Bg7 f5 Bf8 g4 Qc7 h4 Kd8 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ke8 Qf3 Qb6 Qd1 Qd8 Kf2 Kf8 a8B d5 a7 e5 f7 Kg7 c3 d3 Ne2 e4 Rh2 d4 Qc2 e3+ Kf3 d2 Qc1 d1N Rh3 h4 Bc6 a3 a8B a2 Rg3 h3 Na3 h2 Bh3 Nf2 Rg4 Nf6 Be8 Nh7 Kg2 Nf8 Bf3 Ne4 Rb1 a1N Ng3 Nb3 Bd1 e2 Qe3 e1Q Qe2 Nd6 Ne4 h1N Nc5 Qh4 Qe3 Ng3 f6+ Kh8 g7+ Kh7 g6+ Kh6 g8Q Nge4 Qe2 f3+ Kh1 f2 Kg2 Qg5 Qe3 Nh7 Qe2 Qd7 f8Q+ Qg7 f7 Nb7 Qd6 Q7f6 Qg3 Qff4 Qge3 f1B+ Kh1 Qe7 Kg1 Qeg5 f8Q+ Kh5 Qe7 Nf8 Q2f2 Be2 Kg2 Bc4 Qfe2 Kh6
1r2NB2/knrQQK1p/1N6/N2p4/1r2Q2R/P2P3q/5Np1/1R1q1qB1 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 a6 cxb5 a5 b4 axb4 a3 e6 Bd3 Bc5 Bc4 Ba7 Ba2 b3 b6 bxa2 bxa7 Nf6 g4 Ke7 f4 Ng8 f6+ Kd6 f5 Ba6 f7 Kc6 f6 Bd3 Nh3 g5 Ng1 Bf5 h3 Na6 gxf5 g4 h4 Nc5 Rh3 Ne4 Rh1 Ng5 hxg5 Kb6 Nf3 Kb7 Ng1 Kc6 Ke2 Kb6 Kd3 c5 Ke4 e5 Kd5 d6 Ke6 g3 f8Q c4 f7 g2 g6 c3 f6 e4 g7 e3 Qe8 e2 f8B e1R+ Kf7 c2 Rh4 Ne7 g8N Kb7 Nh3 Qc7 Nf2 Rb8 a8N Rc8 Nb6 Re4 d3 d5 Qe2 Ka6 Qd7 Qg3 Be3 c1Q Nd2 Nf5 Rb1 a1Q Ndc4 Qd1 Na5 Rb4 Qf3 Qf1 Qe4 Nd6+ Ke6 Qd4 Be7 Qg5 f7 Rcc4 f8Q Qc5 Nh1 Qg3 Bg1 Nb7 Nf6 Qh3+ Kf7 Ka7 Nf2 Qce3 Qfd8 Rc7 Bc5 Re8 Bf8 Qd2 Q8e7 Rb8 Ne8 Qdd1
n4BQq/3n1N1P/1R3Q1B/qQRqqn1P/Nr6/3K2Br/1Q4n1/5k1b w - - 0 1 legal: proof: c4 a5 b4 f5 a4 b5 axb5 d5 cxd5 Na6 e4 Nb8 exf5 Bb7 Qg4 Ba6 Qd1 Bc8 h4 axb4 f6 e6 Bd3 Bc5 Bg6+ hxg6 h5 Be3 g3 Bh6 Kf1 Bg5 Ke1 Bh4 gxh4 Ra7 Ra4 Ra6 Ra1 Ra8 Ke2 Kf7 d4 c5 f4 g5 f5 e5 h6 c4 h7 c3 d6 b3 d7 g4 d5 g5 b6 g3 d6 g2 b7 b2 Ra4 g4 Ra7 c2 Ke3 e4 Qf1 g3 Qd1 Nh6 Ra6 Qa5 d8Q Nd7 b8B Bb7 Ke2 e3 Ba7 Rb8 Na3 b1N Kd3 e2 Qf1 Nd2 Bf2 Nc4 Nf3 g1Q Nb5 g2 Nc3 Qh2 Rb6 g1Q Na4 Qhe5 Bg3 Qgc5 Qc8 Bd5 Qb7 Qc6 Bd2 c1Q Rg1 Qca1 Ng5+ Ke8 Qb1 Bh1 f7+ Kd8 f8B Qcd5+ Kc2 Qad4 Rc1 Qa1 Qb2 e1N+ Kd1 Ke8 Nf7 Ng2 Qa6 Rb7 Kc2 Rb8 Qab5 Rb7 Rc6 Ncb6 Bg5 Na8 Rb6 Rg8 f6 Nf5 Bgh6 Rb8 Bf2 Rg3 h5 Rh3 Bg3 Rb7 Nh8 Kd8 f7 Kc8 Bfg7 Kb8 f8Q+ Ka7 Qg8 Rb8 Bf8 Rb7 Nf7 Qh8 Qf6 Qae5 Qb2 Rb8 Rc6 Rb4 Rb6 Qdc5+ Kd3 Qc6 Rb8 Ka6 Qgg5 Qb7 Rc2 Kb5 Rcc8 Ndb6 d7 Qc6 d8Q Qb7 Rc1 Qbd5+ Kc2 Kc4 Qd7 Qdd4 Qg8 Qdd5 Qe8 Nd7 Rb6 Nc5 Qb3+ Kd4 Qb5 Nd7 Qb2+ Ke4 Qd4+ Kf3 Kd3 Ne3 Rc5 Kg2 Bfg7 Kf1 Bf8 Qc6 Qc3 Ng2 Qb2 Qcd5+
n1R3Br/PK1Q2p1/2BnqRr1/N6b/1rb1n3/P2RR3/QbQ1N2k/8 w - - 0 1 legal: proof: c4 c5 d4 a5 dxc5 h5 g4 hxg4 b4 d5 bxa5 e5 e4 f5 exf5 Bd7 Bb2 Bc8 Bd4 exd4 cxd5 Rh7 Bd3 Rh6 Bf1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 f4+ Kh4 f6 b5 a3 d3 a6 d2 a7 b4 f5 g3 c6 b3 f7 g2 f6 b2 d6 Rh7 Kd5 Na6 d7 Bb4 f8Q Bb7 f7 Qf6 d8Q Bd6 Qd7 Rh6 Qc2 d1R+ Nd2 b1B Bb5 Nb8 Ne2 Rg6 Re1 Bc8 c7 g1N Bc6 Ba6 c8B Be5 h3 Bd3 Nb3 Nf3 Na5 Bb2 Qb4+ Nd4 f8R Rd2 Qbb3 Nb5 Qa2 Na6 Rd1 Qe7 Rf6 Qe8 B8b7 Nac7+ Kc5 Rb8 Kb6 Bc4 Bd5 Rd8 Bbc6 Rd4 Kb7 Qe6 Rd3 Na8 Re3 Bd3 Bb3 Rb4 Bbd5 Bc4 Rd3 Kh5 h4 Kg4 h5 Rf8 h6 Rc8 Rd1 Kh3 h7 Kh2 Rd3 Rf8 Qab3 Ba2 Re1 Bb1 Qa2 Re8 Rf4 Nf6 Rf5 Ne4 h8R+ Rh6 Rhf8 Rg6 R8f6 Rh8 Rg5 Qd6 Bg8 Qe6 Rgg3 Ba1 Rge3 Bb2 Qa4 Bc2 Rc1 Bd1 Qc2 Nd2 Nd4 Bh5 Ne2 Ne4 Rf8 Nf2 Rc8 Ne4 Rf1 Bc3 Rf5 Bb2 Rf6 Nbd6+
k5B1/2rN1KR1/6n1/3qP1n1/2q1BbP1/r1NN2N1/pQ3Bb1/1nqQ2R1 w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 h4 g5 a4 c5 bxc5 gxh4 axb5 a5 Nf3 Qb6 Ng1 Qa6 bxa6 Bg4 Rh2 Be6 Rh1 Bc8 Kf2 Kd8 Kf3 Kc7 Ke4 h5 Ke5 f5 d4 a4 g4 h3 e4 a3 c6 h4 a7 h2 Be2 f3 Bc4 h3 Be3 a2 Bf2 f4 Nc3 Rh7 Nge2 Nd7+ Ke6 Bd6 Ng3 Ne7 Rg1 h1Q Rc1 Kb6 c7 Bb7 c8N+ Kc7 Rb1 h2 Nb6 Ng6 Bb3 Be5 d6+ Kc6 Qe2 Rg7 Qb2 Ndf8+ Kf5 Rh7 d7 Ne6 d8Q Rc7 Nd7 Qg2 Rbe1 h1Q Re3 Bd6 Kf6 Qf1 Kf7 Qc4 Re2 Qh5 Ree1 Qhd5 Rb1 Be7 e5 Bg5 Rh1 Bh6 Rbg1 Bg5 Rh7 Bh6 Be1 f2 Rg7 f1N Bf2 f3 Rh7 Nd2 Rg7 Rb8 a8B Be3 Bc2 Nb1 Be4 Ngf4 Bh7 Ng6 Bg8 Bh6 Qg5 Re8 Qgd2 Bf4 Qd1 Rcc8 Bh7 Rh8 Bg8 Rh3 Nc5 Kc7 Nd3 Bc6 Bb7 Kb8 Ba8+ Qdb5 d5 Rc7+ Kf6 Bb7 d6 Qbc6 d7 Q6d5 Bd4 f2 d8N f1Q Bf2 Nc5 Ne6 Qe1 Nd4 Ne6 Nb3 Bc6 Bb7 Qd2 Nbc5 Qc1 Ba6+ Ka8 Nd7 Qdd4 Kf7 Bg2 Nc5 Qcd5 Bd3 Q5c4 Be4+ Qdd5 Nh5 Rd3 Ng3 Re3 Nb5 Rc3 Nd3 Ra3 Nc3 Ng5+
b1B2k2/1r1R1N2/QpQ1Q1r1/1B2rb2/b2P2n1/2B1Bn2/1P1K4/qR1N1b2 w - - 0 1 legal: proof: h4 d5 a4 f5 e4 g5 exf5 gxh4 a5 d4 c3 Kd7 cxd4 Ke8 a6 Qd6 Qb3 Qd7 Qd1 Qd8 f4 c5 f6 e5 f5 e4 d3 Bg7 f7+ Kd7 f8Q b6 Qf7+ Qe7 Qfb3 Be5 dxe5 c4 d4 Ke8 Qbd3 Qb7 axb7 cxd3 g4 h5 g5 a5 g6 h3 f6 a4 f7+ Kf8 e6 e3 Rh2 d2+ Ke2 a3 Qa4 a2 Qa6 h4 Nf3 Rh7 Nc3 Nd7 b8Q Ngf6 Qbb7 Ng4 Rb1 a1Q Qc6 Nde5 Ng5 Nf3 Nd1 Rb8 Rf2 h2 Bh3 h1B Kd3 e2 e7+ Kg7 e8Q e1R Qee6 Rb7 Rf1 Bg2 f8B+ Kh8 Bh6 Re5 Nf7+ Kg8 Be3 Rh6 g7 Rg6 Rf2 Bf1+ Kc3 Kh7 g8B+ Kg7 Bh7 Kf8 Rg2 Rg8 Bd3 Rg6 Bb5 Bd7 Qf6 Bf5 Qfe6 Nf2 Bg4 h3 Rg3 h2 Rh3 h1B Rh8+ Kg7 Rd8 Bhg2 Rd7 Kf8 Qb3 B5d3 Qe4 Rb8 Ra7 Ng5 Bc8 Ng4 Rd7 Bc2 Qf3 Bf5 Qe6 Bh1 Qfd5 Bhe4 Qc4 Ba8 Qcc6 Nf3 Nf2 d1B Bcd2 Ba4 Nd1 Re4 Be1 Rb7 B1d2 Bh3 Kd3 Bg2 Bc3 Re5+ Ke2 Ng1+ Ke1 Bf1 Kd2 Nf3+
2Q1q2q/K1Q1b2k/3Nn2B/2QP1q2/QN2RrB1/5N1r/2pPR2r/r3n3 w - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 g5 exf5 d5 c4 b5 cxd5 b4 h4 gxh4 a4 Bd7 a6 Bb5 axb5 Nd7 b6 Nb8 b7 Nd7 b8R Nxb8 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 c6 g4 h3 f4 h4 f6+ Kh6 a7 h2 g5+ Kh7 f5 b3 f7 b2 f6 h3 Nf3 Nh6 Na3 b1Q Qc2+ Nf5 Nc4 e5+ Nd6 e4 Be2 e3 Bb2 Qe8 Kb6 c5 Ra4 c4 Re1 c3 Re4 Be7 f8Q h1Q f7 h2 Qc1 Ng7 g6+ Kh6 Qg8 Nc6 f8Q Nd4 Qff7 Rd8 a8Q Nge6 g7 Nc2 Qa4 Rh7 Bd1 e2 Ka7 Rc8 Qff8 Rc4 Qh8 Kg6 g8N Rh3 Qd4 Rb4 Qc5 Kh7 Ba3 Rc4 Qc7 Rd4 Bc5 Rc4 Be3 Rd4 Bh6 Rc4 Rf1 e1R Rf2 Rf1 Qc8 Ne1 Rfe2 Qd3 Qf4 c2 Qca3 Rb4 Qg3 Rb1 Qac5 Ra1 Qf4 Qg2 Qg3 h1R Qe5 Qg7 Qh2 Bg5+ Ne7 Qgh8 Nc6 Be7 Nb4 Rf2 Qe5 R1h2 Qec3 Rf1 Q5c7 Rff2 Q3c5 Rf1 Ng1 Rf8 Nf3 Rf4 R4e3 Rb1 Nd4 Qa3 Rf2 Qe5 Bg4 Qc3 Re4 Ra1 Rfe2 Qf5 Nf3 Qch8
4Q3/1N3qQ1/3b2NK/1b1bQq2/bR1p3P/R1r1PRB1/2B1krq1/2Q3r1 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 d4 cxd4 f4 e5 g4 exf4 gxh5 Be7 b6 Kf8 b5 Nc6 b7 Na5 Rxa5 Nf6 b6 Ke8 Ra4 Ne4 Ra1 Nd2 Nxd2 Bd6 Nb1 Bf8 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 b8R Ke4 h4 f5+ Kh3 g5 c4 d5 e3 a5 c5 d3 h6 d2 h7 f3 b7 f2 c6 a4 c7 a3 Qh5 d1B Bd2 f4+ Qg4 a2 Be2 d4 Nf3 Qd7 Na3 Qf7 Nb5 Ra3 Ne5 Ba4 Bd1 Rc3 Ng6 Kd3 Nd6 f3 Bc2+ Ke2 Rhf1 Be6 c8Q Bd5 Be1 Be7 Qg2 Rf8 h8Q g4+ Kg3 Qf5 Qh1 Rf6 Qce8 Bf8 Qg7 Rf7 Rd1 a1Q Rd3 Qb2 Qg1 Rcc7 Ra3 Rc3 Rc8 Qb3 b8Q Qc4 Nb7 Bd6+ Qee5 Qc7 Rf8 Rf6 Qh1 Qf7 Rg1 f1B Qe8 Bg2 Rf1 f2 Rg1 f1R Bf2 Ra1 Rb1 Bc4 Qc1 Bgd5 Rb4 Bcb5 Qb2 Re1 Qc1 Rg1+ Kh2 Qg5 Be1 g3+ Kh3 g2 Bg3 Qe7 Rf7 Rf2 Rf3 Qgf6 Kg4 Qef7 Kh5 Qf5+ Kh6 Rgf1 Qef6 g1Q Qfe6 Qg2 Qee5 Rg1
k4nNq/4p1rr/1R3N2/2N1PqQ1/1Q2rq1r/2B1P2q/3Q1NB1/4R1Kb w - - 0 1 legal: proof: a4 b5 e4 d5 c4 g5 cxd5 a5 h4 gxh4 axb5 Na6 bxa6 Bh6 b4 Be3 fxe3 axb4 Kf2 Kd7 g4 c5 d4 Kc7 g5 Kb8 e5 h5 d6 f5 d7 h3 g6 h4 g7 f4 d5 f3 d6 h2 Qc2 b3 Bh3 c4 Qd3 b2 Ra5 c3 Rb5+ Bb7 Bd2 c2 Qa3 c1R Bc3 Rh7 Nd2 b1Q Ne4 Nf6 Rb2 Qg8 d8N Nd7 Ne6 Nf8 d7 Qh8 g8N Rd1 Bf1 h3 d8Q+ Ka7 Qd2 Re1 Nd6 Qf5 Ne4 Rd8 N6c5 Rd4 Qa5 Rg7 Qb5 Ra1 Rb1 Raa4 Qb6+ Kb8 Qg6 Rac4 Nef6 Rf4 Qg5 Rcd4 Kg3 f2 Rb6 Rb4 Bb5 f1Q Bc6 Qc4 Bf3 Rg4+ Kf2 Qcf4 Kf1 Rh4 Kf2 Rhh7 a7+ Kc7 a8Q Rc4 Qa1 Kb8 Qab2 Ka8 Qb4 Be4 Ne2 Bc6 Rd1 h1Q Nc1 h2 N1d3 Be4 Re1 Bc6 Ke2 Qg2+ Nf2 h1R Be4 R1h4 Bf3 Qgg3 Kf1 Qgh3+ Kg1 Bb7 Bg2 Bc6 Bf1 Bh1 Bg2+ Re4
1QRK4/4qb2/p2nrkp1/1R5P/1R6/n2rBB1q/Nb2N1Pq/3RQ1B1 w - - 0 1 legal: proof: b4 c5 c4 h5 e4 d5 Qxh5 b5 Qh7 f5 exf5 e6 cxd5 e5 d4 exd4 a4 cxb4 axb5 Qa5 Nh3 Qc7 Ng1 Qd8 Kd2 Ke7 Kd3 b3 Kc4 b2 Kc5 a6 h4 d3 f4 d2 b6 d1Q d6+ Kf6 h5 g6 b7 Bg7 d7 Qf3 Kd6 Nc6 b8R Qe7+ Kc7 Qb3 Rh4 Qc2 Nc3 b1Q Na2 Bf8 Ne2 Qbb2 Be3 Bb7 Rd1 Qeb4 d8R Nge7 Rdc8 Ne5+ Kd8 Bd5 Rb5 Qcc3 Qg8 Bg7 Qe8 Nc4 Bg1 Ng8 Qe3 Rh7 Qd2 Bh8 Qe1 Na3 Rg4 Re7 Be3 Kf7 f6 Nh6 f5 Re6 Bg1 Qbc5 Rgb4 Qh3 Be3 Qe5 Bg1 Kg8 f7+ Kg7 f8B+ Kf6 Be3 Qa7 Bfc5 Qeh2 Bg1 Qh7 Bce3 Bc4 Nf4 Bd5 Be2 Qg7 Bf3 Nf7+ Kd7 Nd6+ Kd8 Ra7 Ne2 Rc7 Rd2 Rc3 Rd1 Ke5 f6 Rd3 f7 Kf6 f8Q+ Qf7 Qe8 Bb3 Qd7 Qe7+ Kc7 Kf7 Kb6 Bb2 Qb7 Kf6 Qb8 Re4 Kc6 Bg8 Kb6 Re6 Kc6 Qf8 Kd7 Qg7+ Kd8 Qb7 Nac1 Bf7 Na2 Qe7#
1q1N1R1b/pQb1qRq1/1r1PB2P/2k1q1RB/QN6/5p2/nB2K1b1/6R1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g3 h4 g4 Na6 h3 g5 Ra5 Rh5 Ra3 Nb8 Ra1 Nc6 Ne2 Ne5 gxh5 g4 Ng1 g3 Ra2 Ng4 hxg4 Rb8 Ra6 Rb6 Ra5 Rh6 Ra1 Rh8 b4 Kd7 d4 Kd6 b6 c5 b5 e5 g5 h3 b7 g2 b8R h2 h6 c4 b6 e3 g6 c3 b7 e4 g7 e2 Na3 c2 Bb2 c1Q Nf3 g1Q Ng5 Qf4 Qa4 Qe5 Nc2 Qde7 Nb4 Bh3 Nf7+ Kc7 d6+ Kb6 d5 Kc5 d7 Qgg5 d8R Nf6 g8B Bg2 d6 Nd5 Rg1 h1Q Rd7 Nc3 Nd8 Qgg7 Be6 Na2 Ra8 Qh3 b8Q Qb3 Qb7 Rg8 Kd2 e1B+ Ke2 Bd2 Rd1 Bc3 Rd3 Rh8 Rg3 Rh7 Nc2 Ba5 Rg5 Bc7 Rc8 Qb6 Nb4 Rh8 Qba6 Qb8 Qb7 Qe8 Rf7 Be7 Kd1 Bf6 Be2 Qe7 Bh5 Rg8 Rh1 Qh7 Rg1 Bh8 Ke2 Rf8 Rfg7 Rf3 Rf7 Qg7 Ndc6 Rh3 Rcf8 Rd3 Nd8 Rb3 Nd5 Rb5 Nb4 Rb6 f4 exf3+
1q1B4/nQb1QP2/1q1N4/3R2B1/q3bNQ1/RRp1Q1Pb/2pb1n2/2K2k2 w - - 0 1 legal: proof: c4 b5 b4 f5 a4 d5 axb5 f4 b6 f3 b5 a6 b7 Ra7 b6 Kf7 exf3 Nf6 f4 Ng8 f5 Ra8 Bd3 Qd6 Be4 dxc4 Bc6 Qd7 Bb5 Qd8 f4 axb5 g4 Ke8 f6 Ra3 f7+ Kd7 f5 Rf3 f6 Rf5 gxf5 g5 Ra6 h5 Na3 g4 Ra8 g3 Nb1 g2 Ra1 Rh6 Ba3 Rg6 Bc1 Rg3 hxg3 Kd6 Rh4 Kc6 Rh1 Kd7 d4 Kd6 Kd2 Kd5 Ba3 Ke4 d5 c5 d6 e5 d7 h4 Ra2 h3 Kc2 Ke3 Qd5 Kf2 Kd2 h2 Bc1 c3+ Kd1+ c2+ Kd2 c4 Na3 e4 Qd3 b4 Qe3+ Kf1 Nh3+ g1Q Nb5 b3 Nd6 b2 Nf4 b1Q Ra3 Nc6 b8R Na7 b7 Qe8 d8B Bh6 f8Q Qa4 f7 Nf6 Qg8 Ng4 f8Q Nf2 f6 Bh3 f7 Qbb5 Nd5 Bf4 Qe7 Be5 Qg4 Qb2 Nb5 Bc7 Nd6 Qb6 Nf4 Qbb3 Bb2 Qb6 Be5 c3+ Kc1 Qbb5 Bf6 Qb6 Qc5 e3 Bg5 e2 Qce3 e1B Rb3 Qab5 Ra8 Qa4 b8Q Qbb5 Qbc8 Qb8 Qb7 Qb5 Ne4 Nc6 Q7c5 Nd1 Raa3 Qa4 Ng6 Bf2 Qba7 Kg2 Qb7 Na7 Qee2 Qe1 Qd3 Qe3+ Qd2 Qed4 Qe7 Qb6 Re1 h1B Re2 Kg1 Nd6 Be4 Nf4 Be1 Qe3+ Kf1 Rd2 Nf2 Rd5 Bd2+
bQQ1nr2/3N1P1P/1pb2N1B/q2n2KB/3b3R/p3p2B/NR5B/kq6 w - - 0 1 legal: proof: e4 a5 b4 d5 g4 c5 d4 cxb4 c4 h5 gxh5 f5 exf5 Ra6 a3 Rc6 cxd5 Rc5 a4 Qd7 dxc5 Qxa4 Bb2 Qb3 Bc1 Qa2 h4 Kf7 f4 Kf6 h6 g5 h5 e5 c6 b6 c7 e4 d6 a4 d7 g4 d8B+ Be7 h7 a3 h6 g3 Rh4 g2 Nh3 g1Q Nc3 b3 Nf2 b2 Kd2 b1B+ Ke3 Qg6 Qg4 Qb3 Be2 Nc6 Ra2 Na5 Rb2 Ba6 c8B Qa2 Bc7 Qd5 Na2 Nc6 Qg3 Bbd3 Bh5 Qa5 Bd2 Nb4 Ng4+ Kf7 f6 Bb7 f5 Ba8 Kf4 Bb5 Be5 Bc5 Qc3 Bg1 Qc7+ Bd7 Qb8 Bdc6 Bc7 Bd4 Bd6 Ke8 f7+ Kd8 f8N Nf6 Bc1 Ne8 Nd7 Rf8 h8Q Qh7 f6 Nd5+ Kg5 e3 f7 Qe4 h7 Qb1 Bh2 Ke7 Bd2 Ke6 Bb4 Ndf6+ Bc5 Kd5 Bcd6 Kc4+ Bde5 Bc5 Bef4 Nd5 Ngf6 Bd4 Nc5 Nc3 Bh3 Nd5 Ncd7 Kd3 Kg4 Kc4 Bh6 Kd3 Rb5 Kc2 Kg5 Nb4 Qg8 Kb2 Qh8 Ka1 Qc8 Nd5 Rb2 Nec7 Qb8 Re8 Qf8 Rd8 Qc5 Rf8 Qc1 Ne8 Qc5 Bcb7 Qcc8 Bc6
b4Nb1/1QR1K2p/Q1R2BB1/1R4q1/pN2b2k/1n5p/1BP2P1p/1bn3B1 w - - 0 1 illegal: Other
N1KQ1R2/1q1n3N/2Nr1n2/b1B2q2/PP2Qnrb/2N3kb/3RrqB1/3B4 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 b4 gxh4 Qb3 a5 Ba6 a4 Bxb7 axb3 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 f4+ Ke4 d4 c5 a4 e5 d6+ Nc6 d7 c4 d5 h6 d6 c3 f6 b2 f7 c2 f5 h3 f6 h2 Nh3 Be7 f8N Qb6 f7 Qf2 Rf1 h1Q Ra2 Ra6 Nh7 Bd8 f8Q Ba5 Be3 c1N Nf4 Nd3 Nd5 Nf4 Qe7 Nb8 Bc5 h5+ Kg5 h4 d8Q h3 g4 Kf3 d7 e4 Kf5 h2 g5 e3 g6 e2 g7 e1B Nbc3 b1Q+ Qe4+ Kg3 Nc7 Re6 Na8 Rd6 Rd2 Nf6 g8B Qhf3 Bgd5 h1R Bb3 Rh2 Bd1 Rg8 Bd5 Rg4 Ke5 Rb6 Bc6 Qc2 Kd6 Qh1 Kc7 Qb1 Qee7 Qf5 Qe4 Rg2 Qde8 Rh2 d8N Bd7 Bd5 Rd6+ Kb7 Be6 Nc6 Nbd7 Qd8 Qfg1 Qc2 Re2 Kc8 Qe3 Bg2 Qf2 Bh3 Qhe4 Bg2 Qef3 Bb6 Q3d5 Qe4 Qb5 Bc5 Qb6 Qc7 Qb7+ Kd8 Qf3 Nb8 Qfd5 Nb6 N4h5 Nc6 Rf4 Ng5 Bh3 Bb3 Ng4 Rd1 Kh2 Na8 Bh4 Rd2 Kg3 Bd1 Qd4 Qe7 Rfe4 Nh7 Qf7 Rf4 Qf2 Rf5 Qe6 Rf8 Ngf6 Qb6 Qef5 Qe5+ Rf4 Qe4 Rg4 Qc7 Qb5 Kc8 Nf4 Qd8 Qb7+
1Nn5/1B2R1N1/rQr4n/RN2Q1P1/1b2P2q/b3bB2/K4n1R/N1nrnk2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b3 g3 Bb2 Qg5 Bd4 Qd8 Bf2 Ba3 h3 Bg4 hxg4 Qf6 g5 Ne7 Qc1 gxf2+ Kd1 Bc5 g4 Ng8 Qc2 Qe7 Kc1 Qd8 Qd1 Bf8 Kb2 Ke7 e4 Kd6 d4 f5 g6 a5 b6 c5 b4 h5 b7 c4 b5 f3 g7 c3+ Kb3 h4 b6 f4 Nh3 c2 Qd3 c1B Be2 f1R Nf2 a4+ Ka2 a3 Qb3 h3 Qe3 h2 Nd2 Nd7 b8N Rd1 b7 Nh6 g8B Nb6 Na6 Qh4 b8N Nc8 Nc7 Ra6 Nh3 f2 g5 f1N Qg3 Ne3 Be6 Nc2 Nb3 Be3 Bf3 Ne1 Bd7 Rg8 Bc6 Rg6 Bb7 Rf6 Rc1 Re6 Rc5 Rg6 Ra5 Be7 Rg1 h1N Rg2 Nf2 Rh2 Re6 Na1 Rf6 Ne6 Bf8 Ng7 Re6 Kb3 a2 Ng1 Rg6 Ne2 Rc6 Nc2 a1B Nc3 Bb2 Na1 Bbc1 Ka2 Ba3 Qh3 Ra6 Qf5 Bb4 Bh5 f3 Nb5+ Ke7 Bg4 Rgc6 Qe5+ Kf7 d6 Kg6 d7 Ba3 d8R Bfd6 Ne6 Bdb4 Bh3 Kh5 Bg2 Kg4 d5 Ng8 d6 Nh6 Qf6 Kg3 d7 Nh3 Qf5 f2 Ng7 f1N Bf3 Nd2 Re8 Nf2 d8Q Nb3 Qb6 Nc1+ Kb1 Nh3 Re7 Nf2 Bg2 Nfg4 Qe5+ Kf2 Bh1+ Kf1 Bf3 Nb3+ Ka2 Nf2 Qed4 Rd2+ Qb2 Rd1 Qe5 Nc1+
2n1Rqqr/nB6/N4B2/Kn2QRQ1/1nPR1N2/P2r2B1/1n1Bb3/k1q4b w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 h5 gxh5 e5 f4 e4 Be2 Bd6 Bf1 Be5 fxe5 Ra5 Bc4 Ra3 Bf1 Ra8 Kd2 Ke7 c4 g5 h4 d5 h6 b5 f6+ Ke6 a3 b3 h5 g4 f7 b2 f8B d3 Kc3 b4+ Kb3 g3 h7 g2 h6 d2 Ra2 d4 Nf3 g1Q Rh3 e3 Bg7 d3 Qe1 d1N Qg3 e2 Bg2 e1N Bf6 d2 Ra1 Ne7 Nh4 Nd3 Rh1 Nbc6 Qg5 Qf8 Nc3 b1N Ne4 Nbc3 Ng6 N1b2 Rh5 Na7 Rh4 Ncb5 Nf4+ Kf7 Rb1 Bb7 Nc5 Rd8 Na6 Nec8 Bh1 Bf3 Bg2 Be2 Bb7 Bf3 Ra1 Bh1 Rb1 Qgc5 Rh5 Qg8 Ra1 Qcf8 e6+ Ke8 e7 Kd7 e8R Kd6 Qg6 Rd7 Rf5 Rd8 Qg5 d1B+ Ka2 Bg4 Kb3 Be2 Bd2 Rd7 Rd1 Rd8 Nb8 Rd7 Be5+ Kc5 Bc7+ Kd4 Na6 Ne5 Bb8 Nec6 Bd6 Nd3 Ka4 b3 Bb8 Ncb4 Ka5 b2 Bd6 b1Q Bc7 Nb2 Bd6 Qgf7 Bc7 Rg8 h8Q+ Q7g7 h7 Qc1 Ng2 Kd3 Bg3 Kc2 Nf4 Qgf7 Qc3+ Kb1 h8B Ka1 Bf6 Rh8 Qe5 Qd5 Bc3 Qdg8 Rd4 Rdh7 Bd2 Rh3 Bf2 Re3 Bg3 Rd3
b3k3/1BB1N1nN/P1P1b1n1/q1B5/1b1R1b2/1bbQrr1K/BRQ1b2Q/8 w - - 0 1 illegal: No possible last move
2K2N1q/Q1R2Bn1/1b1B1NN1/5R1r/q2nP1r1/2rQ1P1b/qn1B4/3Nr1k1 w - - 0 1 legal: proof: g4 d5 e4 b5 d4 e5 a4 h5 gxh5 f5 Qd3 f4 Qe3 fxe3 axb5 exd4 c4 Be6 cxd5 Bc8 Ke2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Kf4 b4 a5 h6 g5 d6 c5 Kd5 g4 h5 a4 b6 a3 h7 d3 h6 a2 f3 Kg3 b7 Kf2 d7 d2 Ke6 d1Q b5 c4 b6 c3 Bc4 e2 Bd2 e1Q Ne2 g3 Rh5 c2 Nec3 c1N Nd5 g2 Nbc3 g1R Nf6 Bc5 Rf5 Nc6 b8B Qa4 b7 Rg4 Bd6 Qe2 b8Q Bb6 Nd1+ Kg1 Qa7 Nd3 Rc1 a1R Bd5 Nb2 Bb3 Nb8 Rc7 Nc6 Bd5 Nge7 Bc4 Rhg8 h8N R8g5 h7 Rh5 Ng6 Qh8 Nf8 Rc1 Bb3 Rc3 Bd5 Qea6 Bb3 Qa2 Bd5 Q6a4 Bb3 Ba6 d8Q Bf1 Kd7 Bh3 Bf7 Nd4+ Rb5 Qg7 h8N Nef5 Nhg6 Rc8 B2f4 Qh8 Bd2 Qb4 Ra5 Ng7 Rg5 Rb8 Rf5 Rb7 Kc8 Qba4 Qa8 Ra7 Qd7 Ra5 Qa7 Rac5 Qb5 Rc1 Qd3 R5c3 Ne3 Rf1 Nd1 Re1
B5q1/1N1K4/4r1Qr/N1nQ1N2/3PNkb1/4b3/nQnq1PR1/qB1bR1b1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Qd6 Ba3 Bg7 axb5 Bf8 b6 Qd7 b5 Qd8 Bb4 axb4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 g4 e5+ Ke4 Kg5 d4 c5 b7 c4 d6 c3 Kd5 c2 f6 c1B f7 b3 b6 e4 d7 e3 Ke6 h3 Qe1 e2 Qd1 e1Q+ Ne2 h4 Qd3 h2 Rg1 h1Q Nc3 b2 Bg2 Na6 b8Q b1N b7 Bd6 f8Q h3 Qf7 Be3 Ng3 Ne7 Bd5 h2 Rg2 Na3 Ba2 Kh4 g5 Kg4 g6 Qd2 g7 Nc6 g8B Ncb4 Qe4+ Bdf4 Qeg6+ Kf3 Rd1 Rh6 Nce4 Nac2 Rb1 Qhc1 Qf5 Qb2 Re1 Qa1 Bb1 Na2 Qb5 Qf8 Q8e5 Qg7 b8N Ra7 Bf7 Qg8 Qb2 Rb7 Qa5 Rb6+ Nc6 Bb8 Ke7 Bc7 d8N Bg4 Qah5 Nc5 Na5 Rf6 Bd5 h1B Ba8 Rd6 Qd5 Rb6 Nf5 Bh2 Rgg1 Kf4 Rg3 Bg1 Ndb7 Bhf3 Rg2 Rc6 Nbd6 Bd1 Ndb7 Rc8 Kd6 Re8 Kc6 Re6+ Kc7 Nb3 Kd7 Nc5+
k1b2R1q/1Nr4r/bKr2qPQ/B1PB4/N2qq2b/3QRQ2/n4QN1/6n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 h5 Kd3 e5 Kc4 a5 b4 h4 f4 d3 g4 e4 f6 a4 f7+ Ke7 Kc5 d5 c4 h3 g6 e3 g7 d4 f5 a3 g5 e2 g6 e1R b6 a2 b7 h2 b5 d2 b6 d3 Nf3 Ra7 Bg2 Re3 Nh4 Re1 Rf1 h1Q Qf3 d1Q Bd2 Nc6 b8Q Ne5 b7 Nf6 g8Q Nd5 Nc3 Rh7 Qa8 Nb4 b8N Rc7+ Kb6 Kd6 f6 Be7 f8Q Qa4 f7 Rd1 Rc1 a1Q Nc6 Na2 c5+ Kd7 Qh6 Qe4 Be1 d2 Na4 Qad4 f8Q Bf6 Qd3 Nf3 Na5 Ng1 Qgb3 Bg5 Qf2 Qf6+ Qc6+ Kd8 Nf5 Bh4 Ne3 Ba6 Rb1 Kc8 Nb7 Kb8 Qbc3 Qh2 Rb3 Ka8 Bh1 Qhe5 Ng2 Qh8 Qdf3 Qef6 Qce3 Rc1 Qc3 d1B Qcd3 Bc2 Ba5 Rd1 Qb5 Rd2 Re3 Bb3 Qd3 Be6 Rfe1 Bc8 R1e2 Qef5 Re8 Q5e6 Re3 Qee4 Rf8 Qc4 Qa3 Rd6 Qd3 Qcd4 Qg4 Qc4 Nf4 Qee6 Bd5 Qcd4 Qgf3 Qee4 Ng2 Rdxc6+
2QB3K/1N1b1B2/n1Pr1r2/1kq1RRP1/2q2r1Q/1b1NQ2n/n4BB1/1n1q4 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kf2 h5 Kf3 d5 b4 Kd7 c4 a5 g7 e5 b6 Kc6 f6 e4+ Ke2 e3 Kd3 f3 b7 f2 f7 e2 f8Q e1R c5 a4 Qe7 a3 Nf3 h4 Qe4 h3 Qe8+ Bd7 Bf4 a2 Ne5+ Kb5 c6 h2 Nd2 Ne7 g8B Re4 Ndc4 Na6 b8Q+ Qb6 Be3 Rf4 Qbc8 Rh6 Bf7 Rd6 Qh5 Qc5 Bg2 f1N Bf2 Nd2 Rhf1 h1N Rae1 a1Q Qh4 Qa4 Na5 Nb1 Nb7 Rb8 Nc4 Ra8 Re5 Qa2 Nb2 Qb3+ Ke2 Qbc4+ Nd3 Rff6 Be1 Rb8 Rff5 Nf2 Kf3 Nh3 Kg4 Ra8 Kh5 Ra7 Nb2 d3 Bf2 d2 Nd3 d1Q+ Rf3 Ng6 Kh6 d4 Kh7 Ne7 Rff5 Nd5 Kh8 Ndc3 Qe7 Na2 Qe6 Ka4 b5 Ra8 b6 Kb5 Na5 Rb8 b7 Ra8 b8B Ra7 Nf4 d3 Nb7 d2 Nd3 Ra8 Bc7 Rb8 Qg8 Rf8 Bd8 Qh1 Rd5 d1B Qe3 Bb3 Rde5 Qd1 Qhe4 Re8 Qh4 Ree6 Qe8 Rd4 Qf8 Red6 Qe8 Rf4 Qe6 Be8 Qc8 Bd7
NNKb1b1k/P2N4/2N1b3/5br1/B1r2n2/q5bb/1PRRQ3/1B1Q1Bnr w - - 0 1 legal: proof: h4 e5 c4 a5 f4 exf4 d3 d5 cxd5 g5 hxg5 b6 Qa4+ Nc6 Be3 Bf5 Qxa5 Nb8 Bc5 bxc5 Qa7 Bc8 Rh2 f6 Kf2 Kf7 Kf3 Kg7 Ke4 h5 g4 h4 a4 c4 a5 h3 d6 c3 Kd5 c2 e4 c1B d4 Nc6 d7 Kh7 Ke6 Bb7 a6 Nb4 d5 c5 d6 c4 e5 c3 g6+ Kg7 g5 c2 Ne2 Be4 Qe3 Rh4 Na3 Qa5 d8Q Nd3 Kd7 Nf2 e6 Kh8 Nd4 Ne7 Nc4 Qa3 Nb6 Nd5 e7 Rc8 e8N Rh5 a7 Rc4 Nc6 Bd3 Rg2 h2 Kc8 h1R d7 Nh3 Nc7 Ng1 Nb8 Bd2 Qe6 Be1 Rd1 c1B Qee7 Bg3 g7+ Kh7 Rh2 Bf5 Rc2 Bd2 Qe1 Ba5 Qde7 Kg8 Q7e2 Be6 Rdd2 f3 Bg2 f5 Q1d1 f2 Bh3 f4 Bf1 Bf7 d8N Be6+ N6d7 Kh7 Ndc6 f3 Bg2 Bf5 Na8 Bd8 Bh3 Nf4 g8B+ Kh8 Bd5 Ra4 Ba2 Be6 Bb1 f1B Qh2 Bd3 Qhe2 f2 Bf1 Qa1 Rc4 Qa2 g6 Rg5 Rc5 Qa3 g7+ Kh7 Rcc2 Bdf5 Bh3 f1B g8B+ Kh8 Bf7 Ba2 Bb3 Re4 Ba4 Bae6 Bg2 Rc4 Qee1 Be2 Bf1 Beg4 Qee2 Bh3
r3Bb1q/n3Q1r1/1rN1Q3/4Rnr1/B1R2b1P/1KNq4/NPrQNk2/6r1 w - - 0 1 legal: proof: g4 d5 a4 e5 d3 b5 axb5 h6 Bg5 hxg5 c4 f5 cxd5 e4 f3 exf3 Nc3 f4 Nb1 Bf5 gxf5 Qf6 Nc3 Qd6 Nb1 Qd8 Kd2 Ke7 Kc2 Kf6 e4 Ke5 h4 Kd4 b6 Ke3 f6 a5 d6 c5 e5 c4 d7 g4 e6 g5 f7 f2 b7 f3 e7 c3 e8B a4 d4 a3 d5 a2 d6 g3 Be2 f1Q Qe1 g2 Na3 f2 Rd1 a1R Rd4 g4 Rf4 g3 Nb1 Nh6 Rc4 Rg8 Kb3 c2 Nc3 Nc6 b8N c1B Na6 Na7 Nb4 Nf5 Nba2 Rg7 Bd1+ Qe2 Bc2 f1R Rh3 Qc8 d8N Rf2 d7 Bd2 Rh2 Rc1 Bd1 Rc2 Nc6 Rf4 d8Q Re4 Ka4 Re6 Kb3 Bc1 Qed2+ Kf2 Q8d7 Rh6 Qe6 Rhg6 Qdd5 Qd3 Ne2 Bf4 Rh1 Rh6 Re1 g1R Qd8 g2 Qg5 Be7 f8Q Qcd8 Qff7 Bf8 Qfe7 Q8d4 Ng3 Qf6 Re5 Rhg6 Qh6 Rg5 Ne2 R7g6 Qd5 Qh8 Qa5 Rg7 Qhe6 Re1 Qad5 g1R Qa5 R5g6 Qad5 R1g5 Qdd8 Reg1 Qd4+ Qe3 Qd2 Qd3 Q6f7 Rd8 Kb4 Rf6 Ncd4 Ra6 Qe6 Rc1 Bda4 Ra8 Nc6 Rc2 Kb3 Rb6+
3RB3/2R2Qn1/Q2rP1Pk/3bB1Nq/3n1qnQ/1NR2Rb1/n2r4/1nn4K w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 h5 e4 c5 g4 f5 Kg2 Kf7 d4 Kg6 e5 h4 b6 f3+ Kh2 f2 e6 f4 d6 b3 d5 b2 b7 c4 d7 c3 d6 h3 Ra6 f3 Qe1 c2 Bg2 f1Q Be3 c1N Qe2 f2 Nf3 Na2 Bf4 Ne7 Ra3 Ra6 Be5 Qe8 d8Q Nf5 d7 Bd6 Nbd2 b1N Nb3 Nc6 b8R Ncd4 Rb7 Ng7 Rc7 Bb7 Qc4 Rb6 Qa6 Bd5 Qe7 Kh7 d8R Qh5 g6+ Kh6 Ng5 Qc1 Re1 f1N+ Kh1 Nh2 Rf1 Qf4 Rf3 Re8 Qf6 Re7 Bf1 Rd7 Bb5 Rc6 Ba4 Rc2 Qe7 Rd2 Bb5 Bc5 Bc6 Rd6 Be8 Bb6 Nh7 Ba7 Qh4 Bb8 Ng5 Nf1 Nc5 h2 Rc3 Ne3 Nb3 Ne2 Bb5 Nc2 Ba4 Nec1 Be8 Nf5 g7 Ncd4 g8Q Ng7 Qf2 Ba7 Qf7 Bb8 Kg2 h1N Kg1 Na3 Qh4 Nf2 Kg2 Nb1 Kg1 Ne4 Kh1 Nf6 Ne4 Kh7 g5 Ng4 g6+ Kh6 Ng5 Rd7 Ra7 Qe4 Bf6 Bg3 Be5 Rd6 Rac7 Qf4
Rr4Nr/rQ1QPP2/nn2BQQn/3r3R/2Nn4/4NB1b/3n2bk/1qK5 w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 f5 axb5 fxg4 d6 Bb7 Ra2 Ba6 Ra1 Bc8 h4 g5 d4 g3 d5 g4 Be3 Be7 Bd4 Bg5 hxg5 exd4 Kd2 Kf7 b4 Kg6 f4 Kf5 g6 c5 g7 a5 e3 h5 b6 g2 b5 c4 b7 a4 b6 a3 d7 a2 d6 d3 Ne2 g1N Na3 c3+ Kc1 c2 Nc4 h4 Nc3 g3 Be2 g2 Bf3 h3 Nd5 Na6 b8N h2 b7 Qb6 d8Q Nh6 g8B Nh3 d7 g1N Nc6 Rb8 Qe8 Qb3 d8Q Ne2+ Kd2 Nd4 Kc1 Be6 Qdd7 Qb5 Qf1 Qb4 N6a5 Qb6 Nf6 Qb5 Bf7 Qb4 Ng8 Qb1+ Kd2 c1N Qf2 Rc8 b8Q Rd8 Qbb7 Rb8 Bg2 Kg4 f5 Nf4 f6 Nd5 e4 Bf5 e5 Nb6 Bf3+ Kh3 e6 Bg4 Kd1 d2 e7 Be6 Qf1+ Kg3 Ne3 Bh3 Qec8 Ncb3+ Qc1 Nbc5 Be6 Ne4 f7 Qb5 Rb1 a1R Nac4 Ra3 Ra1 Qb1 Bh5 Ra5 Qf6 Ra2 Bf3 Ra3 Rf1 h1B Re1 B1g2 Rh1 Bg4 Rh5 B4h3 Qg6+ Kh2 Qf6 Nc7 Ra2 Ra7 Ra3 Na6 Ra1 Qb5 Qc3 Qb2 Qa5 Qa2 Qaf5 Qb2 Q5g6 Qb5 Rc1 Qb1 Na5 Qd3 Rc7 Nc2 Rf5 Rd8 Rfc5 Qb3 Rc8 Qb1+ Ke2 d1R Rh5 Rd6 Nac4 Rd5 Rb8 Nd2 Ra8 Qb4 Kd1 Nd4 Kc1 Rb8 Na5 Qb5 Nac4 Qb1+
nkr1Q1n1/4R2r/b3b1bn/2P2Q1n/2N1PRK1/qN1B1Q1r/3R1b2/2B4R w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kf2 f5 Kf3 d5 e4 Kd7 h4 Kc7 c4 g5 a6 g4+ Kf2 g3+ Kf3 d3 a7 d4 h6 d2 h5 d3 h7 g2 h6 Qe7 Ne2 g1N+ Kg2 f3+ Kg3 f4+ Kh2 f2 Bb2 f3 Kg3 Nh3 Nc1 Nd7 Ba3 Ng5 Kg4 Nf7 b6+ Kb7 Be2 f1B Nb3 f2 Bc1 Qa3 Ra2 Bc5 Rb2 Rb8 a8R Bd4 c5 Be3 Qe1 d1R Qc3 d2 Bd3 Re1 Qf6 d1B+ Qf3 Bd4 Rd2 Re3 Ra4 Bfe2 Ra6 f1N Rh4 Ra8 Ra7+ Kb8 b7 Ng3 Rh1 Nh5 Rh4 Qb2 Na3 Bf1 Nc4 Qa3 Ra6 Bfe2 Re6 Nb6 Rh1 Bd7 Rf1 Be8 Re7 Bc2 Rf2 Bf1 Qf5 Rh3 Rf4 Bf2 Qc8+ Ka7 Qf5 Rc8 b8Q+ Ka6 Qbe5 Na8 Qc3 Bb1 Re6+ Kb7 Re7+ Kb8 Bc2 Ng5 Qf3 Ba2 Bd3 Bg6 Rd7 Ne7 Ra7 Nf7 Rc7 Rhf8 h8Q Ng8 h7 Rfe8 Qhe5 Re7 h8R Nb6 Nd6 Ng7 Qef6 Rh1 Bb1 Ba6 Q6e6 Nd8 Bd3 Na8 Na5 Bb3 Qef7 Be6 Nb3 Rd7 Rh3 Nh5 Qe8 Rh7 Nc4 Nf7 Re7 Rh2 Rg3 Rh1 Rg1 Rh3 Rh1 Nfh6+
1K2qQQ1/1br1B1Nq/N1r3k1/Qn5q/5rnR/3b1q1B/5PPB/rRQ5 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 b4 a5 h4 gxh4 Nh3 a4 Ng1 Bh6 Qf3 Bf4 Qe2 Bc7 Qd1 Ba5 bxa5 Bb7 Be2 Ba6 Bf1 Bc8 Kd2 Kf7 Kd3 e5 Kc4 h5 Kd5 h3 Kd6 e4 c4 e3 f6 a3 a6 a2 a7 d3 c5 h4 b6 h2 b7 d2 c6 h3 c7 e2 Bb2 e1R Qf3 d1Q+ Qd3 Nc6 b8B Nh6 Qd2 Bb7 c8Q Qf3 Bb5 Nd4 Qdc1 Rf8 Na3 Qe8 Kc7 d5 Bd7 Kg6 f7 Ng4 Nb5 Re6 Rb1 a1R Ne2 Rd6 Ba3 Ra6 Rg1 h1Q Ng3 h2 Be7 Rf6 Be6 Rf4 Rf1 Rg8 f8Q Rg7 Nf5 Rh7 Nbd6 Rf7 Ne4 Nb5+ Kb6 d4 Nc5 d3 Na6 d2 Ng7 d1B Q8c5 Ne3 Bh3 Bc2 Bbd6 Rb8 a8Q Rc8 Qc3 Rc5 Qa5 Ng4 Rd1 R7f6 Rd4 Rc7 Qc8 Bd3 Qg8 Nc3 Ka7 Nb5+ Kb8 Qhd1 Be5 h1Q Rdb4 Rfc6 B5d6 Rfc4 Bh2 Rf4 Qd8 Qde2 Ra4 Qe5 Qc8 Qh5 Rd4 Qd7 Qcf8 Qe8+ Bd8 Qh4 Bg1 Ne5 Bc8 Rff7 Be7 Qh7 Rc4 Q1h5 Rh4 Rf4 Bh2 Qf7 Bh3 Ng4 Bb4 Qd7 Be7 Qe8+
3R1r2/br4N1/q2Q4/2N2n1q/1q3RP1/RKRBrQPn/Qn1k1n2/B2n4 w - - 0 1 illegal: No possible last move, all moves rejected
1n1bB3/2Nq3r/1q2P2r/P1B1k2B/1QRbb2N/R2bN3/3Q1b2/1bNK2b1 w - - 0 1 legal: proof: c4 a5 g4 f5 h4 d5 cxd5 g5 f4 e5 b4 axb4 fxe5 Nd7 Bh3 Ndf6 Bf1 Ne4 Nf3 fxg4 Ng1 g3 Rh2 g4 Rh1 Ng5 hxg5 Bh6 Bb2 Bg7 Bc1 Bf8 d4 Ke7 a4 b5 e4 h5 a5 c5 g6 b3 e6 Kd6 e7 h4 e8B b4 g7 c4 Ra2 h3 Rc2 b2 Na3 b1Q Be3 c3 Be2 Nf6 g8N g2 Nh6 g3 B2h5 b3 Ne2 g1B Nc1 b2 Qd2 g2 Kd1 h2 Bf2 Ra6 e5+ Kc7 Qf4 Bc5 Nc4 Bf5 Ne3 Bd3 Nhf5 Nd7 Nh4 Rah6 d6+ Kc6 Qf8 R8h7 Qf4 Bb6 d5+ Kc5 Qg4 Nb8 d7 Qc8 d8Q Qd7 Qdg5 Bd8 d6 Kc6 Qe4+ Kc5 Qb4+ Kc6 Ng4 Kd5 Bc5 Bd4 Qd2 g1B Ne3+ Ke4 Qb3 Kf4 Qb4 Bf2 Rg1 h1B Rg3 Bhe4 Rh3 Qa2 Rg3 b1B Rh3 Qaf7 Rg3 Qc7 d7 Qb6 Rh3 Bg5 d8N Qd7 e6 Bg1 Nb7 Bd8 Nd6 Ke5 Nb5 Bf2 Nc7 Bg1 Ra2 Bf2 Ra3 Bg1 Ke1 c2 Rc3 Bg6 Rc4 Bge4 Na2 c1B Kd1 Ba3 Nc1 Bab2 Nc2 Bdf2 Re3 Bf1 Ra3 Bbd4 Ne3 Bfd3
1B1b3n/b3Nn2/P1Bq3n/1Pb2n2/QBBnRq1r/Q4N1k/8/1R2QbK1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Rh3 a4 Rh1 Ra5 bxa5 Bh6 Ra2 Bg7 Ra1 Bf8 Kf2 Ke7 g4 Kf6 d4 Kg5 e4 c5 d6 h5 e5 f5 d7 c4 e6 c3 d5 h3 d6 Kh4 g5 a3 a6 c2 g6 f3 g7 h2 e7 a2 e8B f4 Qe2 Nc6 Ba3 c1B Qc4 Nce7 Qd4 Ng6 Qa7 Be3+ Ke1 f2+ Ke2 f3+ Kd3 Bd4 Bh3 f1N Qb7 f2 Ke2 Nd2 Bf5 Ne4 Kf1 Ng5 Bc2 Nf7 Bb4 Ba7 Nc3 Rh6 Qg2 Ngh8 Re1 a1B Nd5 Bf6 Qf3 Qe7 d8Q Bh3+ Qg2 Qe5 d7 Bfc5 Qe7 Qd6 d8B Bg5 Qe3 Be7 Bc7 Bd8 Bd3 Rh7 Ne2 Rh6 Rg1 h1N Bb8 Rh7 Nd4 Rh6 Ke2 Ng3+ Kf3 f1Q+ Qgf2 Rh7 Bc4 Rh6 Re2 Qc1 Rge1 Bf1 Ne7 Qd2 Qd3 Qg5 Qfe3 Nf5 Kf2 Kg4 Qe5 h4 Rb1 h3 Ree1 h2 Qc2 h1N+ Kg1 Rh4 Qa4 Nfg3 Bc6 Kh3 Re3 Qf4 Nf3 Ngh6 Qe4 Nf2 Ree1 Nd1+ Qe3 Bdb6 g8Q Bd8 Qg6 Nc3 Qd3 Ngf5 Re2 Ne4 Qda3 Neg5 Qf2 Ne6 Re4 Ned4 Qfe3 Bd3 Qe1 Bf1
Rrr3R1/n5P1/nPb3KR/n2qq1QQ/4Q3/2kn4/QrB3N1/Nnr2B2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 h4 Qd7 b3 Qh3 Bb2 Kd8 Bd4 Be7 Bf2 Bg5 hxg5 Ba6 g6 Bb7 Qc1 gxf2+ Kd1 Ke7 g4 Ke8 g5 Qc8 Kc2 Ba6 Qd1 Qd8 Kc1 Bc8 Kc2 Ke7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 e3 h5 g7 c5 g6 f5+ Ke5 a5 b6 a4 e4 a3 b7 h4 d6 c4 d5 a2 d7 c3 d6 h3 Ne2 f3 Ke6 h2 Kf7 f4 e5 c2 e6 c1N e7 Qa5 e8B Qe5 d8R Nd3 d7 Ne7 g8Q Nec6 g7 Na6 b8Q+ Bb7 Qa7 Rb8 Qa8 Na7 Na3 Bc6 Kg6 Rc8 Qf7 Rb8 Rc8 Rg8 d8Q Rf8 Bg2 f1R Qg5 Rf2 Bf1 Rg2 Bd7 f2 Bf5 f3 Nf4 Kc3 b4 Re8 b5 Rd8 Rb1 a1N b6 Nb3 Nc2 Na5 Ra1 Rh8 Rg8 Rc8 Rg1 h1Q Qa2 Rgh2 Ng2 Rb8 Be2 f1R Be4 Re1 Bf1 f2 Qdh5 Rc1 Bf5 Ba4 Qe4 Bc6 Nf4 Qg2 Rh1 Qf3 Ng2 Rc8 Qe2 Qfd5 Qe4 Rb8 Rb1 Rc8 Na1 Rb8 Rb4 Rc8 Ra4 Rb8 Be2 f1N Qhh6 Nc4 Qeh4 Nb5 Re8 Ndb2 Ne3 Nb4 Ra8 Nfd2 Bf1 Na5 Rf8 Re2 Ng2 Na7 Bd3 Rf2 Qe4 Nb1 Qh3 Rd2 Qhf3 Rf2 Rh6 Na6 Qfh5 Rd2 Bde2 Nd3 Bd1 Rb2 Bc2 Rg8 Re8 Rf8 Rc8 Rf2 Rch8 Rff8 Rg8 Rfc8
b4RQn/2rq1P1B/q3P2r/2B2R1R/q1b2N2/3rQ3/1qR1N2K/k1r3Nq w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 Qe2 f5 Qd1 b5 axb5 f4 Be2 e5 Kd2 e4 Bf1 Bd6 Ke2 f3+ Kd2 Bf4 exf4 e3+ Kd3 e2 Be3 Na6 Bc1 Nc7 Kd2 Nd5 Nc3 Ke7 Nb1 Ne3 fxe3 Ke8 Ke1 Kf7 Kf2 Kf6 b4 e1R g4 d5 c4 h5 f5 Ke5 c5 a5 b6 d3 f6 d2 e4 Kd4 g5 a4 b7 a3 b8N a2 g6 h3 Kg3 h2 b5 f2 c6 h4+ Kg2 Ne7 c7 Ra7 e5 Qd7 g7 Ba6 g8Q Ng6 c8R Rh6 f7 Nh8 e6 Rc7 b6 Bc4 Qf3 d1Q b7 Q1a4 Ba3 Rc1 Bd3 h3+ Kg3 f1Q Na6 Qe2 b8R Qb2 Nb4 Qa6 Nc3 Qaa4 Rb1 a1Q Bh7 Qa6 Nd3 Qaa2 Ne5 Qab3 Ng6 Qba4 Qf6+ Kd3 Qf2 d4 Qf4 Kc2 Qe3 d3 Bc5 d2 Nce2 d1R Ngf4+ Rd3 Ra8 Kb3 Rf8 Ka2 Rac8 Qa1 Rb3 Qb2 Rc3 Ka1 Rc2 Rd6 Rb8 Rd3 Rb5 Qc3 Nf3 Qb2 Rf1 h1B Nfg1 Ba8 Kh2 Bcd5 Bb6 Bc4 Rh5 Qba3 Bc5 Qb2 Kg3 h2 Rf3 h1Q Rf2 Qhc6 Kh2 Qf3 Nd5 Qe4 Rf5 Qf3 Ndf4 Qh1+
k1B2nrQ/5B1R/3n1r1B/2Q1qq1B/b7/rP1n3K/2q1NrPN/1R2qN2 w - - 0 1 legal: proof: f4 e5 c4 d5 cxd5 b5 Nc3 b4 Nb1 b3 axb3 Bd6 Qc2 Bc5 Qd1 Bf8 h4 exf4 h5 a5 h6 a4 Kf2 a3 Nc3 a2 Nb1 Ba3 bxa3 gxh6 Ke1 h5 Rh3 h4 Rh2 Bd7 Rh1 Bc8 Kf2 Kd7 e4 h5 d4 f5 d6 Kc6 d7 Kb7 d5 c5 e5 h3 a4 h4 e6 h2 d6 f3 e7 h3 Kg3 f2 e8B f4+ Kg4 c4 a5 f3 Qd4 c3 Bf7 c2 Qe3 Nf6+ Kg3 Rg8+ Kh4 Ne4+ Qg5 Qf6 d8Q Qf5 d7 Nd6 Be2 f1R Nd2 f2 Rb1 a1Q Beh5 Qae5 Ngf3 Ra7 a6+ Ka8 Qe8 Bb7 d8N Nd7 Qe3 Bc6 Qc5 Bb5 Qf8 Ba4 Qh6 Nf8 Ne6 Rg7 Ned4 Rg8 Ba3 c1Q Qh8 Qcc2 Ne2 Qc8 Bc1 Q8f5 Rg1 h1Q Nh2 Rd1 Ndf1 Rd2 Ng4 h2 Kh3 Rd4 Bh6 Rf4 Nfg3 Rf3 Rgd1 Rf4 Nf1 Qg1 Rd4 h1N Rb4 Ne6 Rb7 Nf8 Nh2 Qe1 Nf1 Qg6 Ngh2 Rf6 Be6 Qf7 Bc8 Qfd5 Rh7 Qdd3+ Ne3 f1R Bf7 Qde4 Bh5 R1f2 Nef1 Rc7 a7 Rc6 Be6 Ra6 Bef7 Q4f5+ Kh4 Kb7 a8B+ Kb8 Bc6 Ra5 Bb5 Ka8 Bd7 Bb5 Ng4 Rf3+ Nfg3 Ra3 Bc8 Nf2 Nh2 Ba4 Ngf1 Rf4+ Ng4 Nd3+ Kh3 Qfe4 Ngh2 Rf2 Nc3 Q4f4 Ne2 Qff5+
Q2N4/2q1k3/P1KbNrBr/1Q2B3/R2B3N/1b2B2q/P1n1bR2/1b2q1qr w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 g5 f4 e6 f5 exf5 b4 Nd7 bxa5 Ndf6 Nf3 fxg4 Ng1 g3 h4 g4 Nf3 Ne4 Ng1 Ng5 hxg5 Be6 Qa4+ Bd7 Qd1 Bc8 e4 f5 Ke2 h5 Kd3 b5 Kd4 b4 g6 c6 a6 g2 d6 b3 Kc5 h4 d4 h3 g7 h2 e5 b2 d5 f4 e6 f3 e7 g3 d7+ Kf7 d6 f2 e8Q+ Kf6 Nd2 Rh3 Ne2 g1R Qa4 g2 Qb5 Rh6 Nd4 Ne7 N2f3 Qc7 Be3 Nd5 Bd3 f1B Bg6 Be2 Rf1 b1B Rf2 Nb4 Qe4 Re1 Rg1 h1Q Nh4+ Bf3 Qd5 Qh3 Qg8 Be7 d8B Be6 Qe8 Bb3 Qg8 Qcc8 Bb6 Qc7 Qd5 Rf8 g8N+ Kg7 Ba7 Rf6 Qe4 Bf8 Ne7 Be2 d7 Rd1 Rf4 Re1 Rgf1 Rd1 R1f2 Rh1 Rg4 g1Q Qf3 Qcg3 Kb6 c5+ Nec6 c4 d8B Bc5+ Kb7 Kf8 Bc7 Qf4 Bcb8 c3 Nd8 c2 N4e6+ Ke7 Bc7 Qc4 Be5 c1Q Kc7 Nc2 Qa8 Qc3 Ra4 Qc1e1 Bb6 Qa5 Kc6 Bd6 Bbd4 Qc7+
2R5/Pb4K1/2Qn2B1/1N2bR2/3qBBqP/1kbqQ3/b3n1N1/2rn1nNB w - - 0 1 illegal: No possible last move
3Nn2R/2N2B2/1Q3bQr/3b1b1P/rr1R3N/1bb1nBNK/P2R2n1/1kr5 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 f5 cxd5 h6 b4 f4 Bb2 Qd7 Ba3 Qf5 gxf5 Bd7 Bb2 Be6 Bd4 axb4 Bc5 Bd7 Be7 Bc8 Bg5 hxg5 Kf2 Kf7 Kg2 b5 h4 c5 e4 g4 d4 g5 f6 Kg6 d6 f3+ Kg3 f2 d7 b3 d8R b4 e6 b2 e7 b3 e8N c4 d5 c3 d6 c2 f7 c1R e5 Kf5 d7 Ke4 e6 Bb7 h5 Ra4 e7 Bg7 f8N Bf6 Ng6 Na6 Bh3 f1B Rb8 Nc7 d8Q Bc4 Rc8 Nd5 Nf4 Ne3 Ra8 Rh6 Q1d2 Bbd5 Na3 b1R Nc7 b2 e8B Bb3 Qc2+ Kd4 Qe4+ Kc3 Nab5+ Kd2 Qe6 Kc2 Ng2 Bc3 Qdd6 Nf6 Bf7 Ne8 Nh4 Bf6 Kh2 Bc3 Bf1 g3+ Kh3 g2 Ne2 g1B Ng3 Bf2 Na7 g4+ Kh2 Bfe1 Bg2 Bf6 Qb6 Bd2 Bf3 Bdc3 Ngf5 g3+ Kh3 g2 Nc6 Re1 Ng3 Rec1 Rd1 g1N+ Kh2 Nh3 Nd8 Nf4 Rd4 Nfg2 Kh3 Rf1 Rb8 Rbc1 Qg4 b1B Qg6+ Kb2 Be2 Rf4 Bf3 Rg4 Rc8 Bf5 Rd2+ Rc2 Rad1 Rab4 Rd4 Rc1 R1d2+ Kb1 Nde6 Ng7 Rh8 Ne8 Nd8 Ra4 Rd1 Bc2 R4d2 Rgb4 Rd4 Bce4 R1d2 Bf5+
2r1B3/2Q1P3/kBNqnnrP/1n1N1B2/qRn1n3/3KQ1r1/3r1N2/B3R2q w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 h3 h5 Ra2 Bb7 Ra4 Bf3 Bg2 Bg4 Bf1 g6 Ra6 Bh6 gxh6 g5 Ra4 Bf5 Ra6 g4 Ra5 g3 Ra1 Bg4 hxg4 Qa5+ Bd2 Qb6 Bc1 Qd8 Kd2 f5 c4 a5 b4 d5 e4 Kd7 c5 Kc7 c6 Kb6 g5 g2 g6 a4 e5 h4 e6 f3 g7 a3 e7 h3 c7 f2 c8Q a2 Be2 f1N+ Kd3 h2 Bf3 f4 Qa4 Ng3 Qe6+ Qd6 Qe4 Nc6 Bh5 f3 Qc2 f2 Qee2 f1N Be8 Ne3 Nh3 g1R Nc3 Nc4 Rb1 a1Q Qe3 Rc8 Nf2 Ne4 Bb2 Ngf6 g8B Nd8 Bh7 Rhg8 Bf5 R1g3 Rhe1 Qa4 Ba1 h1Q Qc1 Ka7 b6+ Ka6 b7 Ne6 b8B R8g5 Qc2 Rg6 b5+ Kb7 b6 Ka6 Ke2 d3+ Kd1 d4 b7 d2 Ke2 d1N Ba7 N4g5 Rb4 Nge4 Nd5 Ndc3+ Kd3 Nb5 b8N+ Ka5 Nc6+ Ka6 Ke2 d3+ Kd1 d2 Ke2 d1R Bb6 Rb1 Kd3 Rb2 Qc3 Qf4 Qe5 Re2 Qb8 Qd6 Qc7 Rd2+
NnR1rN2/3QPQRK/1BB2q2/4P1B1/1bqrR3/1pb5/1nkb1n2/4q2R w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 e5 fxe5 f5 Qb3 Ke7 Qd1 Ke8 g4 fxg4 h3 g3 Ba3 g2 Bb2 Nf6 Bc1 Ng8 Qb3 g5 Qd1 g4 Nc3 g3 Nb1 Bg4 hxg4 Bd6 Nc3 Bc5 Nb1 Bf8 d4 Kd7 Kd2 b5 Ke3 h5 Ke4 c5 Kf5 c4 Kg6 c3 a4 b3 e4 h4 a5 b4 d6 Ke6 d5+ Kd7 g5 b2 a6 b3 e6+ Ke8 a7 h3 e7 Kd7 Nd2 b1Q Qf3 h2 Ra4 c2 Nc4 Nf6 Nh3 g1Q Nf4 g2 Ne6 Ne8 Qf7 Qc5 Bf4 g1B Bg2 Rg8+ Kh7 c1B g6 Bd4 g7 Bc3 Bg5 B1d2 Rb4 Qe1 Ra4 Kc8 d7+ Kb7 d6 Kc6 Nb6 Kb5 Rc4 Qc6 Rd4 Qdc7 d8Q Qc4 Bf3 Kb4 Qd7 Qc6 Bg2 Ka3 Bf3 Kb2 e5 Kc2 Rh4 Bb4 Bd5 Bdc3 Bg2 Qf3 Re4 Qf6 Bf3 Na6 Bg2 Rd8 a8R Nb8 Bf3 Na6 Rc8 Nb8 Rf1 h1N Na8 Nf2 Rh1 Qf4 Qa4 Qf6 d7 Nd6 Qb5 Re8 d8B Nd3 Ba5 Nb2 Qd7 Rd8 Bb6 Re8 Reh4 Ne4 Bg2 Nf2 Bc6 Rd8 Re4 Qf3 Qa7 Rd4 Qd7 Rh8+ Kg6 Qf4 g8R Bh6 Rg7 Re8 Nf8 Qf3 Kh7 Qf6 Bh4 Bf4 Bg5 Bfd2
1b1rk3/N2pN3/6R1/1P1b1rn1/1Qq3rB/qn3qP1/QKnB4/B3BQR1 w - - 0 1 legal: proof: d4 b5 f4 f5 a4 g5 axb5 c5 fxg5 cxd4 e4 h5 exf5 h4 g3 h3 Bg2 hxg2 Kd2 a5 c4 e5 Kc2 e4 h4 a4 b4 e3 h5 e2 g6 e1R g7 a3 b6 a2 h6 d3+ Kb2 d2 h7 Ke7 c5 Na6 b5 Ra7 b7 Nh6 b8B Qa5 g8Q Qc7 f6+ Ke8 f7+ Kd8 c6 Qe5+ Nc3 Qe6 c7+ Ke7 Nf3 g1Q Ne5 Qd4 Rg1 Bb7 c8Q Qed6 Bc7 Bd5 Ba5 Qc4 Qc5 Rf1 Qb4 Rf5 Qf1 d1Q Bd2 Qf3 Be1 Bg7 f8B+ Ke8 Nc6 Nc5 Be7+ Bf8 Bed8 Nf7 Bh4 Ng5 Rd1 Ra6 Na7 a1N Rd4 Rc6 Rg4 Nc2 Qe6+ Be7 Bd2 Rg8 h8B Rc8 Be1 Nb3 Qee2 Nf7 Rg6 Ng5 Qd2 Rd8 Bd4 Bb7 Nd5 Bf6 Bc3 Be5 Ne7 Bd5 Qde2 Bf4 Bcd2 Qa6 Bc7 Qa5 Be5 Qa6 Bd4 Bb8 Qe6 Qd6 Be5 Qdc5 Qa6 Qd6 Qa2 Qa6 Bec3 Qa3+ Kb1 Qc5 Rc6 Nh7 Ba1 Rg4 Re6 Ng5 Rg6 Qa5 Kb2 Qc4 Rh6 Qa4 Rg6 Qa3+
4nqQ1/qkP2r2/1r1R4/K4Rb1/2Np4/bB2R1Pq/Q1QNB1b1/4Rn1r w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 b5 exf5 Na6 Ba3 Bh6 axb5 Bf8 b6 Nb8 b5 Ba6 Bc5 Bc8 Bb4 axb4 Kd2 d5 f4 Kd7 c4 e5 f6 h5 b7 Kc7 g3 b3 f7 e4 f5 h4 f6 d3 Kc3 b2 g6 e3 c5 d4+ Kb4 d2 g7 h3 Nf3 h2 Qc2 d1Q Ra7 e2 Nfd2 e1B Ka5 Qf3 c6 Nh6 g8B Ba3 f8R Nf5 f7 Ne3 Be2 Bh3 Ra6 Bg2 Re8 Nd7 f8R Nf1 Bb3 Ra7 Re3 Qb8 Rf5 Nf6 Rg1 Bf2 Nc4 h1Q Nbd2 b1R Qa2 Ne8 b6+ Kd8 Qc2 Qh3 Qa2 Rh7 Rh1 Rf7 c7+ Kd7 Rg1 Kc6 Qc2 Qf4 Qa2 Qfh6 Rh1 Qf8 Rg1 Qd8 b8Q Rb7 Qa8 Qb8 Qc2 Nh2 Re1 Nf1 Rc3 Be3 Qa7 Bg5 Re3 Kd7 Qa8 Ra7 b7 Rb2 Ba2 Rb6 Bb3 Kc6 Rb5 Qbc8 b8Q+ Rb7 Qba7 Qb8 Rbe5 Kd7 Rb5 Kc8 Rf5 Rh6 Rd6 Rh5 Qc5 Rb6 Qa2 Rhh7 Qad5 Rh6 Qe6+ Kb7 Qg6 Qg4 Qg8 Rh1 Ne5 Qh5 Qcc2 Qh3 Nec4 Qa7#
2n2B2/1P1prb1Q/NrBR2Q1/3Pr1n1/RbkB3n/1R3N2/Kqq5/R2b4 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ra3 Kf7 f4 h5 g4 e5 d4 a5 Kd2 e4 Kc3 e3 Kb2 e2 c4 e1R d5 a4 g5 h3 c6 h4 c5 h2 b6 h3 c7 Ra7 g6+ Ke7 g7 Bb7 c8R Bc6 b7 Rh7 Qc2 Nf6 g8Q Ne4 Bb5 Qc7 Nc3 Ng5 Ne4 Ra6 Be3 Rb6 Bd4 Re3 Ra2 a3+ Kb1 Rg7 Qh7 Re2 Rb2 a2+ Ka1 Rf7 Ba4 Bb5 c6 Bd3 Nc5 Kd6 f6 Bg6 f5 Re5 Rb3 Rg7 Kb2 a1N Qe2 Nc2 f7 Ne3 f6 Nf5 Ka2 Nh4 Nf3 Be7 f8Q Be8 Ra1 h1Q f7 h2 Rbb1 Qc1 Qfg8 Bf8 Na6 h1B Nh2 Bg2 Rb3 Bf3 Qb2 Bd1 Nf3 Be7 f8B Bh5 Nc5 Rf7 Rd8 Qc8 c7 Nc6 Bb5 Na7 Ba4 Rf6 Qgg7 Bf7 Qgg6 Rfe6 Na6 Re1 Re8 Re4 Qhh6 Re5 Qgh7 Qd8 c8R Qdc7 Bg7 Q7c2 Rc4 Nc8 Bc6 Bf8 Q6g6 Be7 Ra4 Bf8 Nb4 Be7 Bc3 Kc5 Bd4+ Kc4 Bf8 Bc5 Na6+ Bb4 Re7 Be8 Rf7 Re7 Rf6 Bf7 Rd6 Q1xb2+
5b2/P2P3n/2rNq3/bRRQB1rB/q2b1Q2/rR1Npn1k/3nN3/3KR3 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g3 c5 g4 hxg4 Nc3 d5 Nb1 Bd7 d3 Bb5 cxd5 c4 Qa4 c3 Qd1 Bc4 dxc4 Qd6 Qa4+ Qd7 Qd1 Qd8 f4 Kd7 a4 e5 h4 g5 f6 b5 d6 Ke6 c5 Kf5 f7 g3 h5 g4 c6 b3 h6 b2 c7 e4 c8R g2 d7 c2 h7 g3 a5 b4 a6 b3 Na3 b1N Nc4 b2 Qd5+ Kg4 f5 Nf6 Rh5 Rg8 h8R Rg5 Rc5 Nd2 Nd6 b1Q Ne2 Qb3 Bb2 g1B Be5 Nh7 f6 g2 Rh3 Qa2 Rb3 Qe7 Rcb5 c1B Kd1 Qe6 a7 Nc6 Rg8 Bd4 Rg6 g1R Rh6 e3 Rh5 Be7 f8N Qa4 f7 Rc8 Ng6 Bf8 Ngf4 Bcb2 Nd3 Bbc3 Rc1 Ba5 Rcc5 Rg2 Rh1 Rh2 Bg2 Kh4 Be4 Kh3 Re1 Rhg2 Bg6 R2g4 Bh2 Ne5 Bh5 Nef3 Bg3 Rc6 Be5 Bg7 f8Q Rg2 Qf7 Bf8 Qf4 Rf2 Rg1 Rf1+ Kc2 Ra1 Re1 Ra2+ Kd1 Ra3
3RQ2R/1br5/3Q1QpP/4Q2b/2BP2B1/2BrK3/nqNnnn2/1Nnkb3 w - - 0 1 illegal: No possible last move
4r3/1N1N2kn/Qb1Rpn1n/1b1P2q1/2n1P3/4nKB1/3BR1r1/N1r1BNQ1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 b5 f4 d5 cxd5 g6 f5 Nf6 a4 axb4 axb5 Ng8 Bh3 Rh7 fxg6 Rh6 g5 Rh8 Bg4 hxg4 Kf2 c5 h4 f5 e4 f4 d4 g3+ Kf3 b3 g7 Kf7 g6+ Kf6 b6 g2 h5 e6 b7 c4 d6 b2 d5 c3 d7 c2 h6 Qb6 d8N Qc6 h7 Qc3+ Qd3 Nd7 b8B Qd2 Qa6 Nh6 g8N+ Kg7 Rh2 Bc5 Nb7 Nf6 Na3 b1N Ne2 Bd7 Ng3 Bb6 Nf1 Bb5 Be5 Re8 Ra2 Qe1 Bd2 c1R Nc2 Qh4 Na1 Qg5 Rc2 Na3 Rc6 Nc4 Rd6 Kf8 g7+ Kf7 Ne7 Rhg8 Nc6 Kg6 h8B Kf7 Nb8 Kg6 Be3 g1N+ Kf2 Kf7 Nd7 Nh3+ Kf3 Kg6 Bc3 Kf7 Be1 Kg6 B3d2 Kh7 Ke2 f3+ Kd3 f2 Ke2 Kg6 Kf3 Kf7 Ng3 f1N Re2 Nfe3 Nf1 Nf4 Bg3 Nh7 Bde1 Nh5 Bd2 Rgf8 Bde1 N5f6 g8Q+ Ke7 Qg6 Rg8 Bg7 Qe5 Qg5 Kf7 Qg4 Qg5 Bd2 Nh5 Bgc3 N5f6 Bde1 Rg6 Bcd2 Kg7 Qh3 Qh4 Qg2 Rg4 Qg1 Qg5 Bgf2 Rg2 Bh4 Kg8 Bhg3 Kg7
2b1q1N1/3r2Pb/1B1k1p2/1R3P1K/r1Bb2rB/1bQb2N1/RB4n1/1Q2nQ2 w - - 0 1 legal: proof: e4 c5 h4 d5 exd5 g5 b4 gxh4 bxc5 b5 a4 a6 axb5 axb5 Ke2 Kd7 Kf3 h5 c4 e5 g4 h3 d4 b4 g5 h4 Kg4 b3 f4 e4 d6 b2 g6 e3 f5 e2 g7 e1R d5 h2 Nd2 b1B Ne2 h3 Ra2 Ra6 Ne4 Nh6+ Kh5 Bd3 Bb2 Qe8 Qb1 Rd1 N2g3 Ra4 Rg1 h1B c6+ Kd8 c7+ Kd7 c5 h2 Rg2 Nc6 Rc2 Nd4 Rf2 Bb5 Bc4 Nc2 Rf3 Be7 Rb3 Bf6 Rb4 Bba6 Rb5 Rg1 Qf1 Bd4 Qb1 Bg2 Qf1 h1B Qb1 Qg8 Qf1 Ne1 c6+ Ke8 d7+ Ke7 Nf6 Kd6 d8B Qe8 Ng8 Ng4+ Nh6 Rf8 Ng8 Ne3 Bf6 Be4 Bh4 Be6 c8Q N3g2 c7 Bd3 Qb8 f6+ Kh6 Rf7 Kh5 Bac8 Qb7 Ke5 d6+ Bd5 d7 Kd6 d8B Rd7+ Kh6 Bf7 Qb8 Bg6 Qb7 Be2 Qe4 Bh7 Qb1 Bb7 c8Q Bd3 Bb6 Ba6 Qa8 Bc8 Qa6 Ne3 Qa5 Bd5 Qc3 Rg2 Nh5 Rg4 Ng3 N3g2 Bb3 Ba8 Bf7 Bd5 Kh5 Qe5 Be6 Bb3 Bc4 Qe8+
rQ1r1Qb1/np1n2B1/2QN2n1/B1B1n1kr/NR6/P4PKR/4bB2/n1q5 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 d5 c4 a5 cxd5 axb4 g3 e6 Bh3 Bd6 Bg4 Bf4 gxf4 hxg4 h4 Ke7 d4 Kf6 a3 g5 h5 c5 h6 e5 f3 c4 Kf2 b3 h7 e4 d6 e3+ Kg2 c3 d5 c2 d7 b2 d6 e2 Qe1 g3 Qb4 g4 Qb5 Ne7 Nh3 Ng6 Be3 c1N Bf2 Nd3 Ng5 Qc7 Rh3 Nde5 Nf7 Rd8 Nc3 b1B Qc6 Bd3 Rb1 Bb5 Rb4 e1N+ Kg1 g2 Kh2 g1N Na4 Nc2 Kg2 Be2 Kg3 Rh8 d8B+ Ne7 Rb3 Na1 Rb4 Be6 d7 Re8 Nd6 Bg8 Bb6 Qc8 Bf2 Rf8 Bc7 N7g6 Ba5 Rd8 h8B+ Ke7 Kg2 g3 f6+ Ke6 f7 Qc7 Qb5 Qc1 f5+ Ke7 f6+ Ke6 Ne4 Kf5 f8B Kf4 Nd6+ Kg5 Kh1 g2+ Kh2 Ne7 f7 Nec6 Kg3 Na7 Rh6 Nh3 Qc6 Nf4 Rh3 Nfg6 Bfg7 Nc8 f8Q Na7 Bc5 Nd3 Bgd4 Nde5 Bg7 g1R+ Kh2 Rh1+ Kg3 Rh2 Bf2 Rc8 Rh7 Rh5 d8Q+ Ne7 Qdc7 Nbd7 Qb8 N7g6 Rh6 Rd8 Rh8 Rh4 Rh7 Rd4 Rh2 Rh4 Rh3 Rh5
2nK3k/3bb1NB/7B/1RQ3Rn/3qP1P1/B4pQr/1B1NQ3/r2nrn1b w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 h5 Kf3 c5 Ke4 f5+ Ke5 Kf7 d4 Kg7 g4 b3 b6 h4 d6 b2 g6 c4 d5 c3 b7 c2 d7 f3 Ke6 f2 d6 h3 Nd2 b1R Bb2+ Nf6 Ngf3 c1N Ra5 f4 Nh4 f3 Rb5 h2 Nf5+ Kg8 g7 Na6 b8Q Kh7 e4 Nd3 Qe2 Kg6 g8Q+ Bg7 Qf8 Kh7 Kf7 Qb6 Ke7 Nac5 d8B Raa1 d7 Na4 Qg3 Qd4 Bc7 Re1 d8B Bh6 Bf4 Nb6 Ng7 Nh5 Qf5+ Kg8 Qc5 Bg5+ Ke8 Rh7 Be7 Bd7+ Kd8 Kh8 Be3 Bh4 Bh6 Nc8 Qcc7 Nf6 Bea3 Nh5+ Rg5 Kg8 Rg1 h1B Qc5 Kh8 Qd1 Nb4 Bc4 f1N Qe2 Nc2 Bg8 Nce3 Qh3 Bf2 Qg3 Nd1 Rg2 Be3 Rf2 Bf4 Rh2 Bd6 Rh3 Nf6 Rhh5 Be7+ Kc7 Nfe3 Qcd6 Rb1 Rb5 Qd3 Qc5 Qc3 Bg5 Nf1 Bf4 Rh6 Bh7 Ra1 Rf5 Rh5 Bh6 Rh3 Rh5 Qd4 Rg5 Bf8 Kd8 Nh5 Rb7 Bd6 Rb5 Be7+
2Q2r2/k4N2/r1nQR1Nn/qPPrQp2/b1r2bNK/N2R4/1B5b/1B1n4 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kf2 g5 h4 d5 e4 Kd7 c4 Kc7 h6 Kb7 e5 f5 c5 g4 e6 d3 h7 d2 a6+ Ka7 h5 f3 Kg3 f2 e7 d4 e8Q d3 h6 Qb6 Qe5 Qc7 Bb2 Bd6 Rh3 Qa5 Nf3 Be6 Na3 Nc6 Nh2 Bb3 Kh4 g3 Ng4 Ba4 Bg2 f1R Be4 g2 Ra2 Kb8 a7+ Kb7 Ra1 g1B Rb1 Rf8 Rf3 Bh2 a8Q+ Kc7 Qa6 Kb8 Qc8+ Ka7 Rc1 Rf2 Rc3 Rf6 Re3 Rf4 Re2 Nge7 Re3 Rhf8 h8N Ng8 h7 Nh6 Ng6 Bb8 h8N Bc7 Bf3 Rc4 Be4 Bd6 Nf7 Re6 Qe2 d1R Qd2 Bf4 Qh2 d2 Bb1 Bb8 Rcd3 Rd6 Re1 Rd5 Ba2 Ra1 Bb1 d1N Qd6 Bc7 Re6 Bb8 Qdd8 Bbe5 Qd6 Ra2 Qe2 Bh2 Qe4 Bef4 Qee5 Bb3 Nfh8 Qc7 Nc2 Ra6 Nf7 Ba4 Na3 Qa5
N5n1/1nPQRpPK/1b6/QrNn1q2/5k2/b4N2/R4BbN/rRr1B2r w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 h4 Qd8 e3 g5 hxg5 Bd6 c3 Bf8 Bc4 d3 Bb3 Bb7 Ba4 Bc8 Bc2 dxc2 Kd2 Ke7 g4 Ke6 b4 d5 e4 h5 Ke3 a5 Kf4 a4 g6 a3 g5 a2 b6 h4 b7 d4 g7 h3 b5 d3 c4 d2 c5 h2 b6 Ra6 c6 Ra5 g6 Qe8 Kg5 Bb4 Nf3 Ne7 g8Q Bd7 g7 Qc8 Qd8 Rf8 Kh6 Ra8 Kh7 Na6 b8N Qc7 b7 Qd6 Qa5 Bc8 Nd7 Rd8 b8B Qd3 Ba7 Re8 Bf2 Ng8 Nc5+ Ke7 e6 Kf6 e7 Bb7 Ba3 Reb8 e8R c1R Re7 Qd5 e5+ Kf5 e6 Kf4 Bb2 Ba3 Bc3 Qd7 Re1 h1R+ Nh2 Ra7 Re2 Ba8 Bb4 Rb5 Qda4 d1N Nd2 Bb7 Rb1 a1B Nf3 Bd4 Bbe1 Nc3 Ra2 Qc8 Qd1 Be3 Qd7 Nd5 Re8 Ba8 e7 Bd4 Rd8 Be3 e8N Bb7 Nc7 Ra8 Na4 Bb6 Re8 Nc5 Re7 Ra6 Na8 Ra7 c7 Bc6 Qd8 Nb7 Nc5 Qf5+ Kh8 Ne3 Qd4+ Be4 Qd7 Nd5 Ne5 Bg2 Nf3 Ra6 Rd2 Qe4 Qc3 Bb4 Re2 Qe5 Kh7 Ra1 Ra2 Ba3 Qa5 Qf5+
NrN5/1Rq3r1/Q1Nn1bk1/1B6/B1n1P3/PqR1N1q1/q1b3qp/1BK3Q1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e5 fxe5 g5 h4 a4 hxg5 a3 d3 axb2 Na3 bxc1Q Rb1 Be6 Rb2 Qa1 Rc2 Bc8 Kd2 b5 e4 h5 g4 c5 e6 f5 d6 b4 g6 f4 d7+ Ke7 g5 b3 g7 f3 d4 h4 d5 h3 g6 Kf6 d6 h2 e7 c4 e8B f2 Rc3 b2 Nc2 b1Q a3 Qc7 d8N Nd7 Ne2 Ra5 Ne3 Rg5 Nf4 Nh6 g8B Bg7 Nc6 Ne5 d7 Nf5 Ne6 Qb3 d8N Rg4 Qe2 Nd6 Na7 Qaa2+ Kc1 Bd7 Nc8 Ba4 Nc6 Rg3 Qd3 Rg5 Be2 f1Q+ Bd1 Qcb8 Nc7 Qfg2 Na8 Rg4 Qf1+ Kg5 Be6 Bf6 g7 Rg8 B8d7 Kg6 Bc2 Qc7 Bb1 Qg3 Bd5 Qag2 Qg1 Qba2 B5e6 Bc2 Qf1 Rg5 Bg4 Qb8 Be2 Qbb3 Bd1 Nf3 Qd3 Nd2 Rf1 Re8 Rf5 Rh8 Rb5 Re8 Rb7 Rd8 Ncb6 Rb8 Nc8 Rg4 Qd4 Rg5 Qb6 Rg4 Qa6 Rg5 Rd3 c3 Be2 N2c4 g8Q+ Kh6 Bf1 Rg7 Be2 Kg6 Bf1 Bd1 Be2 c2 Rc3 Na5 Bb5 Nac4 Be8+ Kh6 Nd8 Rh7 Nc7 Q3f3 Rd3 Qg7 Bbc6 Na5 Kd2 Qg5 Ba4 c1Q+ Ke1 Qg7 Na8 Qcc7 Beb5 Nac4 Rc3 Bc2 Nc6 Qf4 Ke2 Qg1 Qg2 Rg7 Qh1 Qgg5 Qg1 Kg6 Ke1 Qh4+ Ke2 Qh3 Ke1 Qgg3+ Ke2 Nb2 Kd2 Nbc4+ Kc1 Qhg2
nK3bR1/n1b5/1NR1B1NB/P1r1q1QR/2Q3rN/kNP1p3/3b4/b2b3q w - - 0 1 illegal: No possible last move, all moves rejected
Q1qK1Bk1/rBp5/q1P1b1B1/b1RB2Q1/rQ1q4/qnP5/1n3R2/q1N4N w - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 e5 f4 exf4 a4 Qf6 axb5 Qc3 dxc3 Bc5 Ra3 Be7 Ra1 Bf8 Kf2 f5 Kf3 Kf7 b4 h5 e4 d5 g4 a5 e5 a4 g6+ Kg7 e6 h4 g5 h3 c5 h2 c6 a3 b6 a2 b5 d4 b7 d3 b6 d2 e7 Rh4 e8B Nd7 b8Q Bb4 b7 Kh8 g7+ Kh7 g6+ Kh6 Ne2 Ne7 g8Q Nb6 g7 Nc4 Qa4 d1Q Bg6 Be6 Qbc8 Ba5 b8Q Ra7 Qab4 Nb2 Qa8 Qd4 Nd2 Rg4 Rb1 a1Q Ng3 Qa3 Nb3 Rh4 Rg1 h1Q+ Rg2 Qhg1 Bb5 Qd8 Nh1 Qgd4 Ba6 Qf8 Qd7 Qb8 Bb7 Rg4 Qgd8 Rh4 g8B Kg7 Rf2 Kh8 Kg2 f3+ Kg3 Rg4+ Kh3 f4 Q7c8 Nf5 Qg5 Kg7 Bd2 Kh8 Nc1 Kg7 Re2 f2 Re5 f3 Rc5 Kh8 Ra1 Re4 Ra2 Kg7 Bf4 f1Q+ Kg4 f2 Kh5 Qa6 Bd6 f1Q Bf8+ Kh8 B8f7 Nd3 Rf2 Nb2 Nb3 Qfa1 Nc1 Bd7 Bd5 Be6 Qg3 Kg8 Kg5 Qdc4 Kf6 Nd4 Ke7 Nb3 Kd8 Qd3 Qb6 Ra4 Qb4 Qd4 Qg5 Qxc8+
3r1qQN/3nb3/3QqRbn/3R1b1k/N1rN1q1p/1KP1N3/2P5/1qB1BB2 w - - 0 1 legal: proof: b4 a5 h4 b5 a4 g5 e4 f5 exf5 gxh4 axb5 axb4 Ra4 c5 Ra3 c4 Ra1 c3 dxc3 Ra2 Qg4 Ra5 Qd1 Ra8 Kd2 Kf7 f4 d5 g4 e5 b6 h5 g5 h3 f6 Kg6 f7 d4 f5+ Kh7 g6+ Kh6 g7 h2 b7 h4 f6 b3 Ra6 e4 Nf3 d3 Nd4 b2 Na3 b1Q Nc4 Qc7 Ne3 Be7 f8N Qf4 Nfe6 Nd7 b8B Ra7 f7 Rc7 f8N Rc4 Rg1 h1Q Ng6 Qhf3 Nc5 Kh5 Rf6 Nh6 Na4 Rf8 g8Q Rd8 Rd6 Qf8 Nh8 Qf4 Rgg6 Qf8 Qe1 Q3f4 Kd1 d2 Rgf6 Qg5 Qg3 Qf4 Ke2 d1B+ Kd2 Bg4 Rd5+ Bf5 Be5 Bg6 Qh2 Qf5 Bg3 Qg5 Be1 Qf5 Ng2 e3+ Ke2 Qg5 Qd6 Qe5 Kd1 e2+ Kd2 Nc5 Ne3 Bcf5 Ba3 Qf4 Bb2 Qa2 Kc1 Nd7 Ba3 Qb3 Bb2 Qb8 Ba3 Qc8 Kb2 Qc6 Kb3 Qa6 Bg3 e1Q Bc1 Qd1 Be1 Qc6 Rc5 Qce4 Rd5 Qe6 Bb2 Qa1 Bc1 Qb1+
5n2/3NbR2/Q3Bq1q/1Q2b1kb/N1BPb1Pn/Nr2K1NR/n4pr1/5B2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bd6 Ba3 Bh3 axb5 Bf8 b6 Bg4 b5 Bc8 Bb4 axb4 Kf2 Ke7 e4 f5 d4 h5 g3 c5 g6 Kf6 b7 h4 d6 f3 d7 c4 b6 h3 g7 f4 e5+ Kg5 e6 c3 e7 b3 e8B h2 Ra7 b2 Na3 b1N Qd2 c2 Bf7 c1B Be8 Qf6 d8Q Nd7 b8N Bb7 Bh3 Ne7 g8B Nc3 Bc4 Na2 Qb2 Rg8 Qb5+ Nf5 Bhf1 Be7 Qc8 Be4 b7 Nf8 Na6 Rb8 Nc5 Nh4 Ne2 Qh6 Qcc6 Bg6 Qcb6 Bh5 Bd7 Bd2 Bde6 Bb4 Rg1 h1B Q6a6 Bf6 Na4+ Be5 Rg2 Be7 Rh2 Rg7 Rh3 Bg2 Ke1 f2+ Kd2 f3 Ke3 Bh1 Bg2 f1Q g4 Rh7 Ng3 f2 Bc6 Be4 Bc6d5 Qb1 Bf1 Qb4 Bdc4 Qd6 Bed5 Qdf6 Be6 Rd8 b8N Rd5 Qba5 Rb5 Nd7 Rb1 Bg2 Rg1 Bgf1 Rg2 Q5b5 Bb4 Nb8 Rb7 Nd7 Bc5 Nb8 Rb6 Rf7 Be7 Nd7 Rb7 Qbc6 Rb4 Qcb5 Rb3+
1RB1Kb1n/7B/BN2nBq1/2n2QPk/5R2/r1PbQ2r/3R3p/N2r1qr1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 d4 c5 f4 exf4 a4 cxd4 axb5 Qb6 Rh5 Qc7 Rh1 Qd8 Kd2 d5 Kd3 h5 g4 f5 e4 Kf7 c3 Kg6 b6 f3 b7 h4 e5 f4 e6 f2 e7 f3 e8Q+ Kg7 g6 h3 a6 h2 a7 Qd6 Nd2 Kh6 g7 Qe7 Ne2 Qd8 Ra4 Qb6 Nf4 Ne7 g8B Nbc6 b8R Nd8 Bh7 Ng6 Qe3 Ne6 Nb3 Ba6+ Rc4 Bb5 Qc2 Qa6 Bh3 f1N Na1 Nd2 Rd1 Nb3 Rd2 f2 Ba3 f1R Be7 Rg1 Bf6 Qb6 Qd1 Qc6 Qdf3 Qa6 Qfe4 Qc6 Qf5 Nbc5+ Ke2 d3+ Kf3 d4+ Nd5+ Ngf4 g5+ Kh5 Bf1 Ng6 Ra4 Qd6 Nb6 Ba6 Bg8 Rh6 Bh7 Nh8 Rc4 Qc7 Rb4 Qf7 Ra4 Qg6 Bh3 Nb7 Ke4 Nbc5+ Kd5 Bc4+ Kc6 Ba6 Re2 d2 Rb4 d1R Rd2 d3 Rf4 Ne4 Kd7 Bc4 Re2 d2 Bf1 Bd3 Rg2 Qg8 Ke8 N4c5 Re2 Rb1 Bh3 d1Q Rd2 Qf3 Bf1 Rd1 Be2 Bc2 Ba6 Bd3 Rd8 Qf1 Bc8 Rb8 a8B Qg7 Bab7 Ra8 Ba6 Qg8 Bab7 Ra3 Ba6 Qg7 Bcb7 Qg8 Rb8 Qg7 Bc8 Qg8 Bd4 Qg6+ Qf7 Bd6 Rff2 Kg4 Be5 Rh3 Bd4 Qg7 Qf5+ Kh5 Bf6 Bf8 Rf4 Qg6+
B1bNnk2/Q7/1r1r3n/2p4r/P1q1B1PB/R3nqQ1/3Bn1b1/K2N2RN w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 g5 g3 Bg7 g4 gxf4 Qf3 Bf6 Qd1 Bh4+ Ke2 Bg3 hxg3 Nd7 Ke1 Nb8 a4 b5 d4 c5 Kd2 e5 Kc2 h5 Kb2 f3 g5 f2 d6 b3 g4 b4 d7+ Kf8 g6 h4 d5 h3 d6 e4 f6 e3 f7 e2 Bg5 e1Q Qf3 h2 Bg2 f1N Ne2 Qd1 Bd2 Nh6 Ng3 Ra6 Ra3 Ne3 Rg1 h1B Nc3 Rh7 Qf4 Qf3 Ka1 Qf6 d8B Qe6 d7 Rd6 Qe5 Qc4 Bh4 Na6 d8N Nc7 Nd1 Ne8 Qc3 Qff4 Ba8 Qf3 Qe5 Bg2 Nh1 Rh8 Qg3 b2+ Kb1 Qd3+ Ka2 b1N Ka1 b3 Be4 Nc3 Ba8 Rf6 Be4 Qc4 g7+ Ke7 g8B Ne2 Bgh7 Kf8 Ba8 Rd6 Bhe4 b2+ Kb1 Nhf5 Bc1 Rh5 Bd2 Kg7 f8Q+ Kh7 Bec6 Nh6 Qe7+ Kg8 Qa7 Kf8 Be4 Qd3+ Ka2 b1R Beb7 Rbb6 Be4 Qd5+ Ka1 Qc4
nbq1rr2/1n1rQ2b/5Br1/pR1R3Q/1K1Rq1q1/N3N2P/1P3N2/k1B4R w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 Kf7 Kd2 c5 Kc3 e5 d6 g3 d5 e4 h3 f3 b6 g2 f6 c4 b7 a6 d7 e3 d6 Ke6 f7 f2 g6 f1Q g7 e2 Bg5 e1Q+ Bd2 Kd5 Qe2 Ne7 g8N Nbc6 b8Q Qf3+ Qe3 Qg4 Qb3 Na5 Kb4 Nb7 Qh6 Qee4 Nf3 g1R Qbe3 c3+ Nd4 c2 Ra4 c1R Na3 Rc7 Bc1 Bg7 f8B Be5 Qh5 Qe8 d8R Bf5 d7 Nc8 Bc5 Nb6 Nh6 Bh7 Be7 Rf8 Rb8 Qc8 d8R+ Rd7 Bf6 Rg2 Nc4 Rg1 Nb5 Rg3 Na3 Re8 Qf4 Kd4 Qfg5 Kd3 Qg7 Rg2 Qe7 Bh2 Nb5 Kc2 Ra5 Kb1 Na3+ Ka1 Rd5 Qg7 Rd4 Rg6 Ng4 Qg8 Nce3 Qge6 Ne5 Q6g4 Nd3 Rf8 Re8 Nc5 Qd6 Qcc6 Rb7 Rad8 Re6 Qc8 Nf2 Rde8 Re5 Na8 Rb5 Nb7 Qe7 Bf4 Rec5 Bb8 Rd5 a5+
BR4nq/QBr5/pbKQb1N1/1n1r2Q1/PP1R1N2/2k1r3/b1B4Q/4q1r1 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 Nc6 f4 Nb8 dxc5 b5 c4 bxc4 f6 h6 g4 Ba6 g5 Qb6 f5 Bc8 fxg7 Qc7 g6 Qd8 Bg5 hxg5 Ke2 e5 Ke3 Ke7 Ke4 Kf6 Kd5 g4 b4 d6 h4 a6 a4 g3 h5 g2 h6 c3 c6 c2 h7 c1R c7 e4 Nc3 e3 Nce2 Qd7 Nh3 g1R Nef4 e2 Bg2 Nc6 Qd4+ Ne5 Qb6 e1Q Qa7 Nf7 Ra3 Rc6 Rd3 Qde8 Rd4 Rc3 Be4 Re3 Bc2 Rb8 Rh2 Rb7 Rg2 Qe5+ Kc6 Be6 c8B d5 Rg4 Re7 Bb7 Nd6 Rg2 Nb5 Rg5 Nh6 g8Q Rf7 g7 Bc5 Rg4 Bb6 Ng6 Re7 Qd8 Ng8 Nhf4 Qb8 Nh4 Ke5 f6 Rd7 f7 Qa8 f8Q Rf7 Rd2 d4 Qg5+ Rf5 Rd1 d3 Nhg6+ Kd4 Qd6+ Kc3 Rh4 d2 Rh5 Nh6 g8B Rd5 Bf7 Rg8 h8Q+ Rg7 Qhb8 Ng8 Rh8 Nf6 Rf8 Ng8 Qbc7 Qd8 Ba8 Qf6 Rb8 Rh7 Be8 Qh8 Bd7 Rf7 Bc8 Rh7 Bcb7 Rg7 Ra1 d1B Rb1 Be2 Rd1 Bc4 Rd4 Re7 Qf6 Ba2 Qg5 Re8 Qh7 Re7 Qh2 Rc7+
2B5/3nNqPQ/1kpq2Rr/1b2nK1B/P2r2Q1/1N4R1/1B1qr2r/2N1N1b1 w - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 exf5 d5 cxd5 e5 b4 axb4 dxe5 Kd7 Qd4 Ke7 Qd1 Ke8 Kd2 Kd7 Kd3 h5 Ke4 b5 g4 c6 a4 Kc7 f4 b3 e6 h3 g5 h4 g6 b2 e7 h2 e8B b4 d6+ Kb7 g7 h3 f6 b3 d7 Ba3 f7 Nh6 f8Q Qb6 d8N+ Ka7 f5 Qc7 f6 Qd6 f7 Bc5 Ba6 Ng4 Nc3 b1R Nf3 b2 Nb7 Bg1 Ne2 Ne5 Nc5 Kb6 Ne1 Nbd7 Nb3 Rh6 Qg8 Bb7 f8N Rd8 Qh7 Qd2 Bd3 Ba6 Bh5 Bb5 Ra3 Ra1 Bc4 Ra2 Kf5 b1Q+ Bd3 Qbb2 Ng6 Qd4 Ne7 Qd6 Bb1 Bd4 Rg1 h1R Bc2 Rh2 Rg6 Be3 Bb2 Bg1 Nec1 Re2 Nc5 h2 Rag3 h1Q N5b3 Qhd5 Be4 Rh2 Qg4 Qf7+ Rf6 Bf1 Bd3 Be2 Ba6 Bb5 Bc8 Ra3 Na1 Re3 Nab3 Ree2 Nd4 Qb8 Ra3 Nf8 Rg3 Rd7 Ndb3 Rd4 Bc3 Nfd7 Bb2 Qd5 Re6 Qbd6 Rg6 Qf7+
n3bQR1/QbBPNBP1/3n1p2/1QrQ4/1K1qq2R/1nn2r2/N5q1/1N1k4 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kd7 Kd2 Kd6 Kc3 h5 b4 a5 e4 c5 g6 c4 b6 a4 g7 a3 b5 g2 b7 a2 b6 g3 Be3 f6 Qe1 h4 Bd2 h3 Qe3 h2 Ne2 g1Q Nc1 g2 Bd3 Na6 b8Q+ Nc7 b7 Rh5 Qa7 Qe7 b8N Nh6 Na6 Ng4 Qe1 Bd7 Qe2 Ne5 Nb8 Be8 Kb4 c3 Bc4 c2 Bf4 Qf2 Qf1 g1N Nc6 Qg2 Bb3 Rf5 Qb5 Rc8 Bg3 Qe6 Ne7 Rf3 Bf4 Ne2 Bc4 Qd7 Bg3 Qc6 Bb3 Kd7 d6 Nc4 e5 Ke6 d7 Qe4 d8Q Na8 Qda5 Nc3 d5+ Kf7 d6 Ke6 d7 Rc5 Ng6 Kd5 e6 Kd4 e7 Ke3 Bc7 Bf7 e8Q Kf2 Qc8 Be8 Ne7 Ke3 Rd1 h1B Rd4 Kf2 Qd8 Ke1 Qdb8 Qh7 Rh4 Qe4 Qc8 Kd1 Qd8 Bg6 Qf8 Bh5 Nd2 Be8 Rb1 a1Q Na2+ Ke2 Rb2 c1N Rc2 Kd1 Nb1 Ncb6+ Bc4 Nb3 Rb2 Qc6 Bd5 Nc4 Bf7 Qe4 Re2 Qh7 Re5 Qe4 Reh5 Qab2 Rh8 Qbf2 Rg8 Qd2 Bh2 Qdd4 Bc7 Qe1 Be5 Qgg1 Bg6 Rf2 Bh2 Rg5 Be5 Bb7 Qbb6 Qg2 Bc7 Qee4 Bf7 Rf3 Qc6 Re5 Qab5 Rc5 Qd5 Nd6+
1qnk2rr/1P2n2P/1r1rbqQ1/R1Q1NB2/pn3Nb1/1R1RK2N/6B1/2R5 w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 b3 f5 Ba3 h6 Bb2 f4 Bf6 f3 Bg5 Bd6 Kc1 Bf4 gxf4 hxg5 d4 a5 Kd2 c5 e4 g6 h4 g4 e5 c4 b6 c3+ Ke3 g5 f5 c2 f6 c1R b4 g3 h5 g4 h6 g2 b5 g3 f7+ Kd7 f8Q Nc6 d6 Nf6 b7 Nh5 b8R Qc7 d5 Qd8 h7 Na7 b6 Nf4 Nd2 Ng6 Nc4 Rb1 Nh3 g1Q Qd3 Qh2 Bg2 Ne7 Rc1 f1B Qg6 f2 Ra3 Rb2 b7 Be2 Rb3 f1R Qf2 Qf8 e6+ Kd8 d7 a4 Ne5 Rd1 Qff5 Qf6 Qc2 Bg4 Qc5 Nec6 e7+ Kc7 d8N Bce6 e8B Nc8 Bf3 g2 Bd7 g1N Bh1 Nf3 Bg2 Bg8 Bf5 Nh4 Bc2 B8e6 Bf5 Ra6 Ra8 Rb6 Ra6 Rbd2 Ra5 Rg1 Qe8 Ng6 d6+ Kb8 d7 Kc7 Qg8 Nge7 Qg6 Rdd1 Ndf7 Rd5 Nd3 Rd6 Nfe5 Kd8 Ndf4 Nb4 Qh5 Be2 Nfg6 Rd2 Bge4 Rd5 Nc6+ Kc7 d8R Qd6 Ngf4 Rgg8 Bg2 Bg4 Qg6 Rd4 Nh5 Qh2 Rd5 Qd6 Ne5+ Kd8 N5f4 Rd1 Rdd3 Rd2 Rdc3 Rd4 Rd3 Qb8 Ra8 Rd7 Ra5 Rdd6
b1rNQ1K1/1Pq2P1p/3nN1k1/nQ3q2/3N4/rRBn1b1n/1Q3RNB/2r5 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 g6 cxd5 Nh6 f5 Ng8 g4 Bb7 h4 Bc6 g5 Bd7 f6 Bh6 Bh3 Qc8 Bf5 gxf5 g6 Bg5 hxg5 Qd8 Rh5 Be6 Rh1 Bc8 Ke2 e5 Ke3 c5 d4 a5 b4 a4 g7 Kf7 d6 c4 d7 a3 d5 c3 b6 a2 d6 c2 g6+ Ke6 b7 Qf8 d8N+ Kd7 b5 Ke8 b6 Nc6 b8B Na5 Qe2 Ne7 g8Q Bb7 g7 Nc8 Bb2 c1Q+ Nd2 Qc7 Rb1 a1R Qd5 Qff7 Rf1 Rc1 g8Q+ Qf8 Ngf3 f4+ Kf2 Ra6 Bc3 Ba8 Nd4 f3 Ke3 f2 N8e6 Ra7 Qg2 Kf7 d7 Nd6 b7 Rg8 Qh2 Kg6 N2f3 Qf7 Qe1 Rc8 d8N Qfd7 f7 Ra6 Ng7 Qf5 Nge6 Ra7 Qb5 Ra6 Kd2 e3+ Ke2 e4 Nh4+ Kh6 Ng2+ Kg6 Qhe5 Ra7 Qd2 Ra6 Qdb2 Ra7 Rh2 Ra6 Rd1 f1B+ Ke1 e2 Kd2 e1N Ke3 Be2 Rd3 Bf3 Qh8 Qfc5 Kf4 e3 Qhe8 e2 Re3 Qh5 Rd3 Qg4+ Ke5 Qh3 Bb4 Qg4 Rb3 Ra7 Bc3 Qh5+ Ng5 Nd3+ Ke6 Nf2 Ke5 Kh6 Kf6 e1N Nge6 Qh3 Qe5 Ned3 Q5b5 Qb6 Ke7 Qc7+ Kf8 Kg6 Kg8 Qg4 Ne1 Nh3 Rf2 Qf5 Ng2 Nac4 Qc2 Ra3 Qb2 Qe7 Bc7 Na5 Bb8 Ne4 Be5 Nd6 Bh2 Qc7
2RQQ3/P1q1K3/p6R/R1b2q2/Bn2k1n1/1rP5/r1Nb1rNB/r1R1b1N1 w - - 0 1 illegal: No possible last move
n3Nn1K/r1Q1n1R1/5b2/2n1B1Bk/pB3Pb1/qB4Q1/P1nR4/N1nR2r1 w - - 0 1 legal: proof: e4 d5 h4 f5 exf5 g5 c4 gxh4 cxd5 c5 b4 b6 bxc5 bxc5 Ke2 Kf7 Ke3 e5 Ke4 a5 f4 h5 g4 c4 d4 c3 g5 h3 d6 c2 d5 h2 d7 a4 d6 h4 f6 Kg6 f7 h3 Nd2 Rh4 Qf3 Ra6 Nc4 Qe7 d8B Bg4 d7 Qa3 Bb2 c1N Ne2 Kh5 g6 Ne7 g7 Nc8 g8R Be7 f8B Bf6 Bb4 Nb6 Rg7 Na8 Nd6 Ra7 Rg1 h1N Nd4 h2 Qg3 Rh3 Nb3 Nf2+ Kd5 h1N Rg2 e4 Be5 e3 Ne8 Rh2 Bc4 Nfd3 Rd2 e2 Rb1 e1N Na1 Rh4 Bb3 Nc5 Be7 Rh2 d8Q Nbd7 Qc7 Rg2 Kd6 Nc2 Kd5 N1d3 Rbd1 Nf8 Bd8 Nc1 Be7 Bh4 Bg5 Rg1 Kd6 Ncd7 Ke7 Nc5 Qc3 Ng3 Kf6 Nf5 Qg3 Ne7 Kf7 Nc6 Kg8 Ne7+ Kh8 Rg2 Bh6 Bf6 Bg5 Rg1
N2nr2Q/3k4/n1b1N1Q1/RN1PpB1n/8/2qrPRN1/b3K2n/1n1Q1nB1 w - - 0 1 legal: proof: b4 a5 h4 f5 g4 g5 a4 d5 c4 axb4 cxd5 b5 axb5 Bh6 Nh3 fxg4 Ng1 g3 Na3 g4 Nb1 Bg5 hxg5 Kf8 Qa4 Kf7 Qd1 Ke8 d4 h5 f4 c5 g6 e5 f5 c4 e3 c3 f6 g2 d6 g3 b6 b3 g7 b2 f7+ Kd7 f8Q h4 b7 h3 Qh5 c2 Ra7 h2 Qd1 Ne7 g8Q Nec6 Ke2 Qa5 Na3 b1N Nb5 Qc3 Bd2 Na6 Be1 Nd8 Bf2 Rh4 Qg6 c1N+ Kf3 Rg4 Bd3 Ne2 Qh8 Nf4 Ne2 Nh5 Rf1 h1B Bg1 Rb8 Qgf6 Rg8 Qg6 Re8 Ra8 Kc6 Rf2 Be6 Bf5 Kd7 Rf1 Rc8 Rf2 Rc4 Rf1 Rb4 Ra7 Rb3 b8N+ Kc8 Nd7 Ra3 Ke4 Ba2 Rf3 Rb3 Bh2 g1N Nb6+ Kb8 d7 g2 Ng3 Ne2 Na8 g1N Rc7 Bg2 Rc4 Bh1 Ra4 Kb7 Ra5 Bg2 Qg4 Kc6 Qgg7 Qc4 Qgg8 Rd3 Qgh7 Qc3 Qg6+ Ne6 d8N+ Kd7 Qb3 Nh3 Bg1 Nf2+ Kd5 Ng4 Ke4 Nh2 Qd1 Ke7 Nb7 Nd8 Nc5 Nf1 Ne6 Kd7 Bh2 Ng1 d5 Bh3 Rf4 Nf3 Bg1 N3h2 Rf2 Ng4 Kf3 Ngh2+ Ke2 Re7 Be4 Re8 Ng7 Kc8 Rf3 Bd7 Ne6 Bc6 Bf5 Kd7
4Nk2/3Q4/Qr1N4/1Qr2rp1/K1bP2QP/2q2BRN/6br/Bn1q1qrR w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 h4 exf4 h5 b5 axb5 Ba6 h6 Bc8 g3 g6 Rh4 Bg7 hxg7 h5 Nc3 Nc6 Nb1 Nd4 Qc2 Nf5 Rh1 h4 Qa4 h3 Qd1 Nh4 gxh4 Qg5 Nc3 Qe7 Nb1 Qd8 b4 a5 e4 f5 b6 c5 b7 f3 b8N f4 b5 g5 d3 h2 Kd2 a4 Kc2 c3 b6 a3 Kb3 f2 e5 a2 e6 c2 b7 f3 e7 c4+ Kb4 c3 Qe2 Rh6 Bh3 f1R Bb2 c1R Nd7 c2 b8Q f2 Nd2 Nf6 Qb5 Ba6 Nc4 Ne4 Bg2 Nc3 Qg4 Rb6 Nh3 Nb1 Nf6+ Kf7 Rg1 h1B Bf3 Bg2 Ka4 Rce1 Be5 c1R Ne8 Kg8 Ncd6 Rc5 Bc3 Ree5 Qbd7 Rf5 d4 Qc8 Rh1 Rg1 Bb2 f1Q Qb5 Kh7 g8Q+ Kh6 Qgb3 Ra7 Qa5 Bc4 Qb5 Kh7 Qaa6 Kg8 Nf6+ Kg7 e8Q Qc7 Qed7+ Kf8 Nfe8 Ra8 Nf6 Re8 Bc3 Re2 Nfe8 Rc2 Nb7 Qg3 Nbd6 Qge1 Bb2 Qd1 Bc3 Na3 Rb1 a1Q Rb3 Qac1 Ba1 Nb1 Bd5 Qcd2 Rg3 Qc3 Bf3 Rd2+ Qb3 Rb2 Ba8 Be4 Bb7 Rh2 Bd5 Bg2 Bf3 Qdc1 Qbb5 Qcd1+
2k2nQ1/r1Bq3N/Nr6/RrR1PQ2/Np2P1bb/4r2r/K7/Bb1qB2B w - - 0 1 legal: proof: c4 a5 g4 f5 h4 d5 cxd5 g5 f4 e5 b4 axb4 fxe5 Nd7 Bh3 Ndf6 Bf1 Ne4 Nf3 fxg4 Ng1 g3 Rh2 g4 Rh1 Ng5 hxg5 Bh6 Bb2 Bg7 Bc1 Bf8 e4 Kd7 a4 b5 d4 c5 Kd2 h5 Kc2 g2 Kb3 g3 g6 c4+ Ka2 c3 d6 c2 a5 h4 d5 h3 g7 h2 a6 Ra7 Nf3 g1Q Ng5 g2 Nh7 Qgb6 Bb2 c1R Nc3 g1R Bg2 Qd4 Na4 Nf6 g8Q Rb1 Qf3 Rge1 Rf1 Qc7 Bh1 Re3 Rc1 Be7 Rc5 Qd1 Bc3 Qd8 Qh5 Qe8 Qf5+ Kd8 d7 b3+ Ka3 b2 Ka2 Nh5 Be1 Ng7 Bc3 Bh4 Be1 Rb7 a7 Rb6 a8N Ne6 Nc7 Nf8 Na6 b4 Ng5 Rhh6 Nh7 Rb5 Bc3 Qf7 Bd4 Rhb6 Bc3 Ke7 d8B+ Ke8 Bd4 Qd7 d6 Rc1 Bc7 b1B+ Kb2 Rcc3 Ra2 Ra3 Ra1 Qe6 d7+ Ke7 d8B+ Kd7 Bf3 h1R Bg2 Rhh3 Bh1 Ref3 Bg5 Rfg3 Bd2 Rae3 Be1 Rg7 Nc3 Re7 Ra5 Rf7 Na4 Re7 Bb8 Kd8 Ka1 Ra7 Bdc3 Bd7 Bc7+ Kc8 Kb2 Be8 Ka1 Qed7 Bb2 Bh5 Bbc3 Bc2+ Ka2 Bg4 Ba1 Bb1+
1QN2r2/1Kn3R1/4N1q1/P2Rn1n1/2Pn1RNr/RQ1BqbB1/6p1/4nr1k w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 h5 gxh5 e5 f4 e4 Be2 Bd6 Bf1 Be5 fxe5 Ra5 Bc4 Ra3 Bf1 Ra8 Ke2 Ke7 h4 g5 a4 d5 c4 b5 f6+ Ke6 a5 Kf5 h6 Kg4 h5 Kg3 f7 g4 f8R e3 Kd3 e2 e6 e1N+ Kd2 d3 Ke3 d2 Kd4 b3 Kc5 b2 e7 d4 e8Q b4 h7 d3 h6 b3 Qg6 Qg5+ Kb6 Ne7 Rf4 Bb7 Rh2 Bf3 Qd6 Ng6 Na3 b1R Nh3 b2 Nb5 Na6 Nc7 Ne5 Ra3 Raf8 Ne6 Nc7 Qb3 d1N Nf2 d2 Bd3 Ne3 Rh5 Kg2 Qdb4 g3 Ng4 d1Q Ka7 Kg1 Qb8 N3c2 Be3+ Kg2 Bf2 Nd4 Kb6 Qc1 Ka7 Nec6+ Kb7 Qg6 Rb5 Kh1 Rd5 g2 Bg3 Rhg8 h8R Ne5 Rh7 Qe3 Rd7 Rh8 h7 Ra1 Rg7 b1N Be2 Nc3 Bd3 Rhg8 h8N Ne4 Nf7 Ng5 Nd6 Rh8 Nc8 Rh4 Bf5 Nec2 Be4 Rf1 Bd3 Ne1
2Q4b/2P1P2q/Q4BNr/qR2bn2/Q1nnKn2/2n2N1R/1N3Np1/1bk4B w - - 0 1 illegal: No possible last move
3B1k2/1bn1qr2/2B1q1Q1/5B2/N1PrR1pK/2nR2RR/2r2PQN/nr2q3 w - - 0 1 legal: proof: d4 b5 e4 h5 a4 c5 axb5 f5 exf5 cxd4 g4 hxg4 Bf4 a5 Bc1 e6 b3 a4 b4 Bd6 Ra3 Bc7 Ra1 Ba5 bxa5 Rh3 Kd2 Rh5 Ke1 Rh8 h4 g5 c4 d5 f6 e5 b6 e4 b7 a3 a6 a2 a7 d3 h5 d2+ Ke2 e3 h6 g3 Kf3 e2 h7 e1Q f7+ Ke7 f8R g2 Kg3 d4 Bd3 g4 Rf4 Qd7 Qf3 d1R Re4+ Qe6 Bg5+ Nf6 Rh3 Rf8 h8Q Rf7 Kh4 Na6 b8R Nc7 Qh6 Bb7 Nc3 Rb1 Na4 Qb4 Bc2 d3 Qg6 d2 Rd8 d1R Rd3 Kf8 Rg3 Re8 a8B Nfd5 Bd8 Nc3 Rh3 Qc5 Qg3 Qce5 Nf3 g1Q Qg2 Qe1 Nh2 Ree7 Rhg3 Rdc1 Rh3 Rd7 Rdg3 Rd4 Bd3 Ba6 Bc6 Bb7 Bc2 Rb2 Bd3 Rcc2 Rd1 a1N Rd2 Rb1 Rd1 Rcc1 Bc2 Qc5 Rdd3 Qce7+ Kh5 Rf3 Rd2 Q7f6 Ree2 Qg7 Kh4 Rf6 Bf5 Qge7 Rdd3 Rc2 Re4 Rf7+
7R/7Q/1br1PrNb/qN1B4/pk5r/Nn4B1/1P2bR1N/QKQr1q1q w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 e4 Kd7 d4 Kd6 Kd2 h5 Kc2 f5 g6 c5 g7 a5 b6 h4 b7 f4 b8N f3 Nd7 g2 Bc4 h3 Ne5 a4 Na3 g3 Kb1 h2 Ng6 f2 Nf3 Nf6 g8Q g1R Qh7 f1Q Be3 g2 Qc1 Rb8 Bf2 Qa5 Bh4 Bh6 Bg3+ Bf4 Bb3 c4 Ba2 Nd7 e5+ Kc7 d6+ Kb6 e6 c3 d5 Kc5 Bb3 Kb4 Ba2 Nc5 d7 Bd2 d8N Bh6 d6 Nb3 d7 Ba6 Nf7 Be2 Nd6 Rbf8 d8Q Rf6 Ndb5 Rg8 Nf4 Rg4 Ng6 Rh4 Qd5 Nd4 Bc4 Nb3 Qdd1 c2+ Ka2 Qf2 Bd5 Re1 Rf1 h1Q Nh2 Qf4 Rf2 g1B Qe3 c1R Rb1 Rc3 Qec1 Rc8 Ra1 Rc5 Kb1 Rc6 Qe3 Qe5 Ka2 Rhf4 Rc1 Qee4 Rf1 Ra6 Rc8 Qeg2 Rh8 Rc6 Qa1 Rd1 Qec1 Bb6 Kb1 Rh4 Rf2 Qgf1
q1n2n1Q/3P2rR/n3QK2/3PR1rB/2B1Q1rr/1q3Nk1/6pN/N1bQq3 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b3 f5 Ba3 h6 Bd6 f3 Be7 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kf7 e4 Kf6 d4 c5 h4 a5 b4 g4 d6 g5 b6 c4 d7 c3 b7 a4 b5 a3 h5 c2 b6 c1N h6 a2 d5 Ke5 f6 Nb3 h7 Nd4 f7 Ne6 Na3 Bh6 f8N Ne7 Nc2 Nc8 Bc4 Na6 b8Q+ Qc7 Rb1 a1Q b7 Qd6 Qa7 Qb4 Qe3 Qb3 Qed3 Rg8 h8Q+ Rg7 Nh7 Nf8 Nf6 Qaa3 Na1 g3+ Ke1 f2+ Kd2 f3 Ke3 f1R b8Q+ Nc7 Rh2 f2 Qb6 g2 Kf3 Ra4 Kg4 Re1 Kh5 Kf4 e5 f1R e6 g4 e7 g3 e8B Na6 Qe6 Re4 Nf3 g1Q Ng4 g2 Rb2 Qaa2 Re2 Kg3 Q3b1 Rd4 Re5 Bc1 Qe4 Qge3 Rh4 Qe1 Ngh2 Rg5+ Kh6 Rh1 Bh5 Ra3 Q4g6 Rdg4 Kg7 Ra4 Kf7 Qaa3 Qgf5 Rg7+ Kf6 R4g5 Qe4 Rb4 Bg6 Qaa4 Rh5 Qc6 Rh7 Qa8 Bh5 Ra4 Ng4 Rh4 Ngh2 Rhg4 Bd3 Rd4 Bc4 Rh4 Qe3 Rdg4 Qed4 Bb2 Qe4 Bc1
4Kn2/BP1B1N2/1qnRQ2N/3B4/P5n1/2B1bbp1/Q2rkq2/bQR3nq w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 Bh3 hxg4 Bg2 Nd7 Bf1 Nb8 a4 a5 b3 b5 axb5 a4 Nf3 a3 Ng1 Ra4 bxa4 Bd6 Nc3 Be7 Nb1 Bf8 Kf2 Ke7 h4 Kd6 e4 Kc5 d4+ Kb4 d6 c5 b6 f5 d5 g5 d7 c4 b7 f3 Ke3 f2 Kd4 c3 Ke5 c2 Ke6 g3 Kf7 a2 e5 g4 e6 f4 e7 f3 e8B g2 h5 g3 h6 Bc5 h7 Qa5 d8Q Be7 d6 Nf6 d7 Nc6 Nd2 Kc3 Ne4+ Kb3 Ne2 Kc4 Ng5 Qa6 Rh6 Bc5 Be3 c1Q Qe7 Rg8 h8B Nh7 d8Q Bg4 Rb1 a1B Bc3 Rh8 Rg6 Nf8 Q8d2 Rh2 Bd7 Bh5 Ke8 Bg4 Bf4 Be3 Bb8 Qb6 Ba7 Qc2 Q1e1 Qe4 Rd1 g1N Bg2 f1Q Nd4 f2 Nf5 Qe2 Bh1 f1N Nf7 Rf2 Bf3 Nh2 Rd6 Qf1 Qc2 Rd2 N5h6 Qf2 Qe6+ Qd5 Qa2+ Kd3 Bg2 Be2 Rb1 Bh5 Qc1 Ke2 Qcc2 Bg4 Rc1 Qh5 Bd5 Bf3 Qcb3 Ng4 Qbb1 Qh1
6R1/P2qb3/1B1q1Q2/1k1B1Bb1/N3r2R/P4qp1/2Q1RbBK/N1rr2rn w - - 0 1 illegal: No possible last move, all moves rejected
n4NBQ/3Q1B1r/1P1Nq1n1/KB2n1Nk/n4Rp1/2r1Pnb1/1N3R2/3r3r w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 h6 Nh3 Bb7 Ng1 Be4 Ke1 Bd3 Bg5 hxg5 Na3 f4 Nb1 Bf5 gxf5 Kf7 Ra4 Ke7 Ra1 Ke8 Kd2 Kf7 b4 a5 c4 d5 h4 d3 Kc3 f3 c5 d2 f6 Kg6 b6 f2 b7 a4 e3 g4 c6 a3 f7 a2 e6 g3 e7 g2 e8B Qd6 b5 Ne7 b6 Rh7 c7 Qe6 Kb4 d4 c8B d3 Na3 Na6+ Ka5 Ra7 b8Q Rc7 Nh3 g1N Qa8 Nf3 Nc4 Kh5 Rh2 g5 Nb2 g4 Ng5 Ne5 Rc1 a1N Rc4 Nc2 Rf4 N7g6 Rg2 Ba3 f8N Bd6 Bf7 Nd4 Bd7 Rc3 Bb5 Ndf3 Qe8 Kh6 h5 Nc7 Be2 f1R Rf2 Rg1 Qd7 Na8 Qa1 d1N Bg8 d2 Bec4 Qe7 Bcf7 Rh1 Ne4 Bc7 Nd6 Kg5 h6 Qe8 Nb7 Kh5 Nd6 Rg7 h7 Qe6 h8N Rh7 Be8 Bb8 Nhf7 Bc7 Ng5 Bb8 Nbc4 Nb2 Bef7 Na4 Nb2 d1R Qa2 Qf5 Qae6 Bc7 Qf6 Qe6 Qh8 Bd8 Nh3 Bh4 Ng5 Bg3
q1Br3b/Pr6/4Rr2/2Rp1kqn/N1BrN3/3P4/1Q2nB1B/rK2Q1Nr w - - 0 1 legal: proof: g4 g5 f4 f5 fxg5 f4 h4 f3 c4 b6 h5 Bb7 exf3 Be4 b4 Bg6 hxg6 a6 b5 axb5 f4 bxc4 f5 c3 a4 c5 g7 Kf7 g6+ Kf6 a5 d5 a6 h5 a7 e5 d3 c4 Qc2 b5 Kd1 b4 Bf4 b3 Kc1 e4 Qb2 e3 Ra5 e2 Bh3 h4 Rc5 Rh6 Bh2 Kg5 f6 c2 f7 Nf6 g8Q Nh5 g7 Nc6 Qh7 Nd4 g8N Bg7 f8B Rf6 Qe4 Bh8 Nc3 Qc8 Na4 e1R+ Kd2 Rc1 Qe1 Ra1 Be7 Kg6 g5 c1R Bd7 h3 Bb5 Kf5 g6 Ne2 g7 Qf8 Bed6 Rd8 Bdg3 Rcb1 Bf2 c3+ Ke3 c2 Kd2 c1R Ba6 Rc4 Bb5 Rb6 Nf6 Rd4 Ne4 Rf6 g8B Qg7 Bc4 Qg5+ Bf4 h2 Be6+ Kg6 Qa3 b2 Kc2 Rd1 Bd6 b1R Bc8 Rb7 Qb2 Rdb1 Nf3 Rd1 Rf1 h1Q Ng1 Qh3 Bh2 Qe6 Qa5 Kf5 Re1 Nc3 Re3 Ne2 Qe1 Rdb1 Nd2 Qd7 Re6 Qd6 Ne4 Qb8 Qd2 Rf1 Qdc3 Qa8 Qe1 Ra3 Kb1 Ra2 Nh3 Rh1 Ng1 Ra1+
1r1n2NR/r1Q2B2/3Qp2R/1P2b3/1nB5/1b5n/NRPKnkNb/n2n2N1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 h4 Qb6 g4 Bh6 h5 Qb7 f5 Bf8 Bf4 gxf4 g5 Qd5 Ra5 Qf7 Ra1 Qg6 hxg6 Bh6 Nc3 Bg7 Nb1 Bf8 b4 d5 f7+ Kd7 f6 Kd6 g7 Ke5 g6 Ke4 b6 Ke3 b5 a5 b7 h5 Rh4 d3 Nh3 f3 Nf2 a4 Be2 d2+ Kf1 d4 Nd3 f2 Ne5 a3 Nd7 d3 Rc4 h4 Rf4 h3 Rb4 h2 Nb6 h1N Bh5 a2 Nc3 Nc6 b8Q Ra7 Rb2 Nh6 g8B Be6 g7 Bb3 Ne2 Nb4 Na4 e6 Qc7 Be7 f8N Nf7 Ng1 Bd6 Be2 Bh2 Ng6 Nd8 Bf7 Re8 Rc1 a1B g8N Rf8 Nf4 Ng3+ Kg2 f1N Nc3 Re8 Na2 Rf8 Bf3 Ne2 Bd5 Re8 Bc4 Rf8 Qe1 d1N Qd2+ Ke4 Rcb1 Nf2 Re1 Kd4 Kf3 Nh3 Qd1 d2 Ng2 Nef4 Re5 Ne2 Rh5 Re8 Rh6 Rf8 Qe1 d1N Qeg3 Re8 Bh5 Rf8 f7 Re8 f8R Nd2+ Kg4 Ke4 Bf7 Kd4 Qgd6+ Ke4 Ne1 Ke3 Ng2+ Kf2 Rb1 Bae5 Rb2 Nhf4 Kg5 Ba4 Kg4 Nb3 Kg5 Na1 Kg4 Kf1 Kf3 Bb3 Ke4 Nh3 Kf3 Ndf2 Ke3 Nd1+ Kd2 Kf2 Ne7 Nb7 Rfh8 Rb8 Ng8 Nd8
2Q3nB/1K4q1/1NQ3qR/NR3n2/2P1B2P/rbB1p3/1B3k1q/1q1Rnnb1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g3 h5 Rh2 a5 Be3 h3 Qe2 h4 Rh1 h2 Bc1 h3 Qd1 Rh4 gxh4 Ra6 Qf3 Rh6 Qd1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a4 f4 e4 b4 a3 c4 d3 b6 d2 b5 a2 b7 Qc7 b6 Nc6 b8B Bc5 b7 Nd4 Qa4 d1Q Nc3 Qh5 Nf3 Qg6 Nd2 d6 Nb3 Bd7 Rg1 h1N Bg2 h2 Na5 Ng3 Bb2 h1Q Rgd1 Nf1 Qc6 Qh2 Na4 Rh5 Rab1 a1N Nb6 Nc2 Bc3 Rh8 Rb5 Ne1 Ba7 Be8 b8Q Qcg7 Qbc8 Rh5 Bb8 Rg5 Bc7 Rg3 Bb2 Ra3 Bf3 Kf7 f6 Nf5 Bc3 Bf2 Bg2 e3 Be4 Bg1 Bb2 Kf8 f7 Ke7 f8R Bd7 Re8+ Kf7 Re5 Kf6 Bb8 Q6h6 Re7+ Kg6 Re5 Kh5 Re6 Kg4 Bc7 Qhg5 Rh6 Kg3 Bd8 Q7g6 Bdf6 Kf2 Bh8 Qe7 Bbc3 Qeg7 Bb2 N5g3 f5 Be8 f6 Nf5 Ke6 d5 Bc3 d4 Kd5 d3 f7 d2 f8B Bd7 Bfb4 Be8 Bb2 Bd7 B4c3 Be8 Rb1 d1Q+ Kc5 Qc2 Rd1 Qb3 Na4 Bd7 Kb6 Qc2 Kb7 Qb1 Nb6 Be8+ Q6c7 Bd7 Rc5 Ba4 Rb5 Bb3 Q7d7 Nfe7 Qdc6 Nf5+
3QQ3/2q1Nqk1/R1nB3r/3prP1r/4Pbr1/2N1nR2/R1B3q1/1N2q1NK w - - 0 1 illegal: No possible last move
q1QNB3/3q4/pK1P3b/nPR1qkNr/R2rN1q1/3nB3/R6n/3N1nQ1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 f5 Kd2 h5 Ke3 c5 d6 Ke6 d7 h4 g5 a6 g6 h3 d5+ Kf6 b6 h2 d6 c4 Kd4 f4 Kc5 f3 e4 c3 g7 f2 e5+ Kg6 e6 c2 e7 Rh7 e8Q+ Kf5 b7 Rh4 Nh3 g1Q Bb5 f1N+ Be3 c1N Ra2 g2 Ng5 Nf6 g8N Ng4 Nf6 Nc6 b8R Bh6 Nc3 Na5 Rc8 Qf2 Nfe4 g1Q Bc6 Qe1 b5 Qgg3 Rc7 Nd3+ Kb6 Qg2 Rg1 h1Q Qg8 Qe8 d8N Qd7 Ra4 Qgg3 Rg2 Ngh2 Rga2 Qg4 Qa1 Rh5 Nd1 Rc8 Qc3 Qeg3 Qc2 Qhf3 Qg2 Qe5 Qg1 Qh7 Be8 Qd7 Rc3 Rc4 Rc1 Rb4 Qc4 Qh1 Qc8 Rd4 Rc5 Qhf3 Nd2 Qfd5 Nde4 Qa8
3qqb1B/2Pp1r1N/2K4q/1r1R2RR/5BbR/7b/2Nnb2P/1QQ1Qqk1 w - - 0 1 illegal: Other
rn1N4/BbK1n3/7N/3PBn1q/1nQ5/nQ1P4/Rn2B1kp/q2RqNB1 w - - 0 1 legal: proof: f4 a5 c4 d5 h4 dxc4 a4 b5 axb5 e5 h5 Bd6 d3 e4 h6 Be5 fxe5 gxh6 e3 h5 Qc2 h4 Qd1 Ra6 Ra2 Rd6 Ra1 Rd4 exd4 Qd5 Rh2 Qd6 Rh1 Qd8 Kf2 Ke7 Ke3 Ke6 Kf4 h5 b4 f5 g4 c5 b6 h3 b5 c3 b7 c4 g5 c2 b6 h4 g6 e3 g7 h2 Nd2 a4 Qe1 h3 Rb1 c3 Rb2 e2 Ra2 a3 Ra1 a2 Rb1 a1N Qd1 e1Q Be2 Qd5 Rb2 Ne7 Ra2 Rf8 Ba3 c1Q g8N Nc2 Nh6 Qa1 Bc5 Na3 Nf1 c2 Nf3 c1N Qb3 Rd8 Rg1 h1N Qc4 h2 Ng5+ Kd7 Ne6 Nf2 Qb3 Nd1 Qc4 Rg8 Nd8 Nb2 Qb3 Qf7 d5 Qh5 Bf2 Rh8 e6+ Kd6 Rh1 Rf8 Bg1 Rh8 Ke3 f4+ Kd4 f3 Qc4 Ng8 e7 f2 e8Q Ne7 Qea4 Re8 Qab3 Rg8 Nd2 f1N Ke4 Ne3 Nf1 N3f5 Kf4 Na6 b8B+ Nc7 Qbc3 Bb7 Ba7 Na6 Q3b3 Re8 Nc6 Ra8 Nd8 Bc8 b7 Nb8 Bg4 Ne2+ Ke4 Ned4+ Be2 Ndc2 Kf4 Nb4 Ke4 N8a6 b8B+ Nc7 Bad4 Bb7 Bba7 Nca6 Bc3 Nb8 Bg7 Kd7 Ke5 Ng3+ Kd4 Ngf5+ Kc5 Kc7 Bc3 Kd7 Kb6 Kd6 Bd2 Ke5 Kc7 Qg6 Bde3 Qh5 Bed4+ Kf4 Be5+ Kg5 Qa6 Kh4 Qac4+ Kh3 Ne3 Ng8 Bf2 Qc3 Rd1 Nge7 Nf1 Qe1 Bg1 Kg2
2k1B2Q/1q1Nnr2/1qnRpn2/1nQnR3/n6r/BRPP3q/Q4N2/3RK3 w - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 c3 gxh4 Qb3 c4 d3 cxd3 Kd1 d2 Kc2 Bb7 Qc4 Ba6 Qb3 Bc8 Kd3 d1N f4 d5 f5 d4 f6 Kd7 Kd2 d3 Ke1 e6 Qc2 Be7 fxe7 Bb7 Qb3 Be4 Kd2 Ne3 Ke1 d2+ Kf2 Bd3 exd3 Nd1+ Kf3 Qc7 Ke2 Qd8 e8R a5 g4 f5 b6 h5 g5 f4 b7 h3 g6 a4 g7 h2 Nf3 h4 Qa3 h3 b4 Nb2 b5 d1N b6 Rh4 Qc5 a3 Bd2 a2 Ke1 Ne7 g8Q Ra7 Be2 Na4 Qh8 Ne3 Bc1 Nbc6 b8R N3d5 b7 Qb6 Ba3 Nf6 Red8+ Kc7 Rf1 h1Q Nbd2 h2 Ne5 f3 Rd1 a1N Rd6 Nb3 Nd7 Nd4 Ne4 Nb5 Nf2 Qg2 Rg1 Qh3 Rg5 h1Q+ Kd2 Q1h2 Re5 Q2g2 Ke1 Ra8 Rg8 Rf8 Rg4 Rf7 Rb4 Qg8 Rb3 Qb8 Qg7 Qc8 b8Q+ Kd8 Qa7 Qcb7 Qa5 Kc8 Qh8+ Rf8 Bb4 Nb2 Qa2 Na4 Nh1 f2+ Kd2 f1N+ Ke1 Qf5 Ba3 Qh3 Bh5 Ne3 Be8 Rf7 Nf2 N3d5
3N2b1/2QnbnP1/6p1/5N1q/Bq3nnN/1RR5/2N1P1nk/nRBQ1K1b w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 a5 Qd2 f5 Nb1 f3 Qd3 f4 Qd1 Ra6 Nd2 Rf6 Nb1 Rf5 gxf5 Ke7 Qd2 Kf7 Qd1 Ke8 h4 g6 h5 Ne7 h6 Rg8 Nh3 Rg7 hxg7 h5 Ng1 Ng8 c4 Kf7 b4 Kf6 b6 Kg5 c5 Kg4 b5 Kg3 f6 d5 b7 h4 f7 f2+ Kd2 a4 c6 h3 c7 a3 b6 h2 Qb3+ f3 Qe3 d3 Nh3 d4 Qe8 a2 Qe6 Qd6 Qe4 Nd7 b8R Be7 f8N Nh6 b7 Nf7 Bg2 f1Q Qd5 f2 Ng5 Qc5 Rg1 h1B Nfe6 Kh2 Na3 Qb5 Be4 Qh3 Rg3 f1N+ Ke1 Ne3 Rb1 a1N Nc2 Ng2+ Kf1 d2 Rc3 d1N Nd8 d3 Qb3 d2 Bc6 Qc4 Ba4 Qb4 Qd5 Qh5 Nf3+ Kh3 Qb3 Nb2 Nh4+ Kh2 Qd5 d1N Qd3 Nf2 Qd1 Nbd3 Rbb3 Nd7e5 Rb1 Bg4 c8N Bf5 Nd6 Be6 Ndf5 Nfg4 Ra8 Nde1 b8Q Nd3 Qc7 Ndf4 Rb8 Nd7 Rb5 Nfh6 Rb8 Bg8 Rb6 Nf7 Rb5 Qd6 R5b3 Qb4
1B1q2Bq/2p5/1N1R2NQ/1Pr2R1n/B2nQn2/BP1q3k/R3q2r/1n2q1K1 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 Nc3 g5 Nf3 f5 Nb1 f4 Ng1 f3 h3 g4 Bg2 Bd6 Bf1 Bf4 gxf4 g3 Ra3 Be6 Ra1 Bg4 hxg4 Qc8 Ra5 Qd7 Ra1 Qd8 d4 Kf7 Kd2 Kg6 Ke3 a5 f5+ Kg5 f6 h5 d5 h4 f7 h3 f8B Kh4 g5 c3 g6 h2 g7 g2 d6 c2 d7 a4 Ba3 Ne7 g8B Rh5 Nh3 g1Q Nd2 Kg3 Nc4 Ra5 Nb6 Qg2 Ra2 Ng6 Nf4 Nc6 Qd6 Nd4 Qf8 Kg4 Qh6 Rh4 Rg1 h1N Bd2 c1N Bdb4 Ncb3 Bc5 Qg3 Bg2 Qh2 Rf1 Nd2 Bh3+ Kg3 Bhe6 Qg1 Bb3 Rh2 Bc2 Nb1 Bcb3 Nh4 Ng6 Kh3 Bd1 Ng3 Bc2 Qc8 d8R Nh5 Rd6 Qf8 Nc8 Qg3 Ba7 Qd8 Bb8 Qg4 Nb6 Ng2+ Kd3 Nf4+ Ke3 Qgd7 Bc5 a3 Ba4 Ra6 b3 Qg4 Rc2 a2 Ba3 a1Q Ra2 Qdc8 Rc1 f1Q Rc5 f2 Re5 Qgg1 Rf5 Nc2+ Kf3 Qd8 e4 Qh8 e5 Nd4+ Ke3 Qc4 e6 Qgf1 e7 Qe1+ Re2 f1Q e8Q Qd5 Qe4 Qde5 Nc4 Rc6 Nb6 Qb4 Rg2 Qd3+ Kf2 Rc5 Kg1 Qbc4 Rc2 Qe2 Rd2 Qcd3 Ra2 Qee7 Be6 Qh4 Bg8 Qhe1#
4n1nR/1k1q2N1/2N1PBrp/nn3r1N/1qR1q1Br/1P3QN1/r3Q1R1/4K3 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kd2 b5 axb5 f5 Nh3 f3 Ng1 f2 Nc3 g5 Ra4 f4 Nb1 Bd6 Ra1 Bb7 Bh3 Bf3 Bf1 Bg4 h3 f3 Ra3 Bf4+ gxf4 Bf5 Ra5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qe7 Ra3 Qg5 Ra1 Qd8 e4 a5 c4 d5 c5 Kd7 c6+ Kc8 b6 g2 c7 d3 e5 a4 e6 a3 b3 a2 f5 d4 g5 Ra5 f6 Rb5 f7 Qf8 g6 Qb4+ Nc3 Nc6 f8Q+ Kb7 c8R Na5 g7 Rf5 Be2 f1Q Bb2 f2 Nf3 g1R Nh4 Qg2 Bg4 f1N+ Ke1 Qe4+ Qe2 Rg3 Rc6 Ne3 Rc4 Nd5 Rh2 Nc7 Rg2 Ne8 Rd1 Re5 Qf3 a1R Nf5 Ra2 Rb1 h6 Rd1 Rh3 Rd2 Rh4 Rd1 Ne7 g8N Rh7 Ba1 Rg7 Nf6 Rg6 Ng7 Rf5 Nfh5 Ng8 Bb2 Kb8 b7 d2+ Kf1 Ka7 b8N d3 Nc6+ Kb7 Rc1 d1N Ke1 Ne3 Ra1 Nd5 Rd1 Ndc7 Rd2 Qd4 Ne4 Nb5 Neg3 Qe4 Bf6 Qa4 Rdc2 d2+ Kf2 d1Q Rd2 Qb4 Rd8 Qd7 Ra8 Ned6 Rc8 Ne7 Rh8 Ng8 Kf1 Ne8 Kf2 Qc5+ Ke1 Qb4+
2nr1Qr1/2B3N1/P1PnBR2/pkrNK1nB/5q2/5BR1/Q2rn1q1/5Qq1 w - - 0 1 legal: proof: f4 e5 b4 exf4 d4 g5 h4 c5 hxg5 cxd4 Na3 a5 Nb1 b6 a3 Ba6 b5 Bd6 bxa6 b5 Rh4 b4 Rh2 b3 Rh1 Bb4+ axb4 Qe7 Nh3 Qf6 Ng1 Qd8 Kd2 f5 Kd3 d5 g4 Kd7 e4 Kc6 c4 h5 g6 b2 g5 f3 e5 f2 e6 f4 e7 f3 e8Q+ Nd7 c5 h4 g7 h3 g6 h2 Qf7 Nf8 Qe2 Nh7 Ra3 Qd6 Nh3 Rc8 Bg2 f1Q Ng5 f2 Bf3 Qg2 Qf1 Ne7 g8B Kb5 g7 Qf4 Ne6 Ng5 c6 Rh5 Bh7 Rg8 Bg6 Nc8 Rg1 h1N Nc3+ Kb6 b5 b1N Ra2 Nd2 Ba3 Nde4 Bd6 Nhg3 Bc7+ Ka7 Qf8 Ne2 Rd2 Ned6 b6+ Ka8 b7+ Ka7 Rh1 Qg1 Rh3 Qg2 Rg3 Qg1 Qa1 f1Q Qa2 Qfg2 Rd1 Nf5 Rf1 Nfd6 Bb8+ Kb6 Qf5 Rd8 g8B Re8 B8f7 Rg8 Ng7 Kc5 Be6 Kb4 Kc2 d3+ Kb2 d4 Bc7 d2 Nd5+ Kc5 b8Q d1R Qf8 d3 Qb5+ Kd4 Bgf7 d2 Qd3+ Kc5 Be8 Rh2 Beh5 Rc1 Rf2 Rc4 Qdb1 Kb5 Qf1 d1R Kb3 Re4 Kc2 Rc1+ Kd3 Rcc4 Bef7 Re8 Be6 Qf6 Ke3 Rc5 Kd3 Qh6 Ke3 Rd8 Kd3 Nc3 Kd4+ Ne2+ Ke5 Rh4 Qd1 Rd4 Qf1 Rd1 Bfg4 Rd2 Rf6 Nh7 Bf3 Ng5 Bhf7 Qh4 B7h5 Qf4+
1r2BQ1n/q2Nb1n1/BR1n1p1b/5bP1/rQ5R/Kp3k2/N4P2/RrR3B1 w - - 0 1 legal: proof: d4 b5 h4 c5 a4 e5 dxe5 g5 hxg5 Qa5+ b4 cxb4 axb5 Qd8 Kd2 Ke7 g4 Ke6 e4 h5 c4 d5 Kc2 a5 Kb2 a4 g6 d4 b6 a3+ Kb3 d3 c5 a2 c6 d2 g7 h4 b7 h3 c7 h2 g5 Nd7 b8Q Ngf6 g8Q Ne8 Nf3 Ra5 Ba6 Ng7 Nc3 Be7 Qf8 Rg8 Qc2 d1N Bf4 Nb2 Rhc1 h1R Bh2 Nc4 Bg1 Nd6 Qb5 Bb7 c8R Qb6 Rc6 Qa7 Rb6 Bc8 Qb1 Rgh8 Qa4 Rg8 Kb2 b3 Ka3 Rgh8 Qd3 Rg8 Qb5 Rgh8 Qb4 Rg8 Rab1 a1B Na2 Bd4 Ra1 f6 Qd8 Bc5 Qe8 Nf8 Qd8 Kf7 e6+ Kg6 Ne5+ Kh5 Nd7 Kg4 e5+ Kf3 Qe8 Ng6 Qf8 Bd8 e7 Nh8 e8R Be7 Nb8 Bf5 e6 Be3 Nd7 Bc5 Bh2 Rf1 Bg1 Re1 Rc8 Rf1 Rc4 Re1 Rh4 Rb1 Qf7 Re8 Rc7 Bf8 e7 Rb8 e8B Ne4 Rcc6 Bce7 Rc1 Nd6 Bh2 Ne6 Qg8 Bh6 Qf8 Ng7 Bg1 Rxa4+
n2b2rN/NR1r4/2rn2B1/Q1Q5/5q2/1q3bpP/bpPB1Q1Q/k1K1R2R w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 Kf6 b4 d5 b6 e5 h6 a5 h7 g5 h3 g4 b5 a4 b7 g3 b6 d3 Rh2 d4 Qh5 e4 Qf3 a3 Ne2 e3+ Kd1 d2 Qf2 Be6 Rh1 Nd7 b8R Ne7 b7 Nc8 Nbc3 Ndb6 Qh2 Ra6 Nb5 Nd6 Na7 Rg8 h8Q+ Bg7 Qh7 Qf8 Qh5 Na8 Bg2 Bf7 Be4 Rc6 Rb1 Be6 Rb2 Bd5 Re8 Ba2 b8R Bh6 R8b7 Bg5 Ng1 Qf7 Nf3 Qb3 Ne5 Bh4 Ng6 Bg5 Ke2 d1R Bd2 Bh4 Nh8 d3+ Kf3 e2 Ke3 e1Q+ Q2e2 Qf1 Qh2 Rc7 Re5 Kg7 Re6 Bd8 f6+ Kf8 f7 Kg7 f5 Rc6 Re8 Kf6 f8Q+ Nf7 Qc5 Nd6 Bb4 d2+ Bd3 Qf4+ Ke2 Rg1 Qa5 Rg2+ Kd1 Re2 Qf3 Re7 Qff2 Rd7 Ree1 Be7 Be4 Bd8 Bc5 Ke5 f6 Rg5 f7 Rg8 Bg6+ Kd5 f8Q Kc4 Qa4+ Kc3 Be3 Qbf7 R2b4 Qb3 Qa5 Kb2 Qff5 Ka1 Qfc5 Qd3 Rb2 Qb3 Ke2+ d1B+ Kd2 Be7 Kc1 Bd8 Bd2 Be2 Qh5 Bf3 Qhc5 axb2#
1Q3NB1/Q1R3Qq/NQ4n1/1b1nqrR1/B3p1p1/4qrNP/1k2nP1b/7K w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 g4 exf5 Nf6 Bd3 Ng8 h3 h6 Qa4 Kf7 Qf4 Ke8 Qh2 g3 Ra6 gxh2 Ra2 Kf7 Ra1 Ke8 g4 Nc6 g5 Ba6 g6 Rb8 b3 Ra8 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 Kf1 Kd7 Kg2 Kd6 g7 Kc5 f6 Kb4 d6 c5 f7 e5 d7 a5 b6 g4 b7 c4 Na3 a4 Nb5 c3 Bc2 a3 d4 a2 d5 e4 d6 Ra4 Ne2 Ra3 Rhc1 h1N Ng3 Ne7 g8B Ng6 Nc7 Qh4 d8Q Qh7 d7 Na6 Qf6 Bd6 d8Q Bd7 f8N Bb5 b8Q Ra5 Qde7 Ka3 b4 Kb2 Qa7 Be5 Ba4 c2 Qfb6 Bd6 Rd1 c1Q Rd5 Qe3 Rc1 a1Q Rg5 Bf4 Qg7+ Be5 Nce6 Nc7 Nc5 Nd5 Rc3 Bd6 Na6 Bf4 Rc7+ Be5 Nf1 Ng3 Kg1 Ne2+ Kh1 Qaa3 Ng3 Qac3 Nh5 Bh2 Ng3 Bc6 b5 Qe5 Qc5 Bd7 b6 Be8 b7 Bb5 Be6 Rg8 b8Q Rh8 Qcb6 Rg8 Nd7 Rf8 Bg8 Rf3 Nf8 Rf5 Bc2 Ra3 Bd1 Qf4 Bc2 Rf3 Ba4 Qe3
1K1q4/R2NnQBQ/2N5/BbrPn3/Rr1bQ2p/1nQ2b1p/P4q2/3N3k w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e4 f5 exf5 g6 h4 Ra3 g4 Ra8 h5 Ra5 h6 Na6 g5 Ra3 Be2 Nf6 Bh5 gxh5 g6 Qd6 g7 Qg3 g8N Qg7 hxg7 Nb8 Nc3 Ra7 Nb1 Ra8 d6 Kf7 Ke2 c5 Ke3 e5 d4 b5 f4 c4 d5 e4 Kd4 b3 Ke5 e3 d7 b2 d8B c3 Qc2 e2 Be3 e1Q Be7 b4 Kd6 b3 Kc7 Ra5 Qf2 c2 Nd2 c1N Nh3 b1B Qe2 b2 Nb3 Nfd7 f6 Kg6 f7 Kf5 Bd4 Be4 Nc5 b1Q Nf2 Nb6 Nd1 Ba6 Rh4 Nc8 Nd7 Nc6 Bb4 Rc5 Ba5 Qf2 Qe1 Be7 f8Q+ Bf6 Qc3 Bh1 Rg4 Ke4 Ne7 Bd3 g8Q Kf3 f5 Qb5 Bb6 Qa5 Rb1 h6 Rb4 Nb3 Qe8 Bg7 Re4 Kg2 f6 Bb5 f7 Kh2 f8Q Bf3 Qf5 Kh1 Qgf7 Bf6 Rf4 Rg8 Be5 Rg4 Q5h7 Bg7 Rf6 Rgc4 Ra4 Rb4 Qfg6 Bh8 Qef7 Bg7 Qe4 Bh8 Bf4 Bg7 Re6 Bd4 Bg5 Ne5+ Kb8 h4 Bd8 h5 Ra6 h3 Bf6 h4 Nc6 Nb6 Ra7 Nc8 Bc7 Qe1 Bg7 Qf2 Bd6 Qd8 Bc7 Ba6+ Bb6 Bb5 Ba5 Ne7+
4R3/qNb3K1/n2N1r1p/B1qnP2b/4B3/Q1Q3qB/1Rp1kNPN/4n2r w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kc5 d6 f5 g6 h6 g7 f3 b6 b3 b7 f2 d7 f4 Qe1 f3 Nc3 b2 Ra2 b1Q Nd1 Qh4 d8N Bg4 Nf7 Qa1+ Rb2 Bh5 Bd3 f1Q Nf2 Na6 b8Q Ne7 g8B Qg3+ Kf6 Kd4 Nd6 c5 Qb3 c4 Qa3 c3 Be6 c2 Bh3 Qe2 e5 Qe3 Be4 Rg8 d3 Rg6+ Kf7 Rd8 Bd2 Nd5 Ba5 Qa2 Rb8 Qc4 Ra8 Qc5 Rc8 Be7 Rb8 Rd7 Re8 Bd8+ Kf8 Bc7 Qd2 Qe2 Qdc3+ Ke3 d4+ Qd3 Ne2 Qa7 Rb1 Rd8 Ng1 Rf6+ Nf7 Rb8 Rb2 Rb7 Bg4 Qc5+ Kg7 Rb3 Nd6 Rb6 Nh1 f2 Nf3 f1N Nh2 Nd2 Nf2 Nf3 Nf5+ Ke2 Nd6 Qf4 Bd7 Qfe3 Bh3 Nf4 d5 Ne1 Nf5 Qdd4 d6 Nd5 d7 Qf3 d8N Qg3+ Kh7 Rb5 Nd6 Qa7 N8b7 Qdc5 Ra2 Rb1 Rb2 Nf3 Kh8 Rh1 Kh7 Ne1 Kh8 Qf4 Kg7 Qg3+
2N2bq1/r2bBQRq/2N1P2R/5rpB/1p3P2/NR1b1K2/1Q1n2n1/2N3qk w - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 g4 h5 gxh5 d5 cxd5 e6 d4 e5 dxe5 fxe4 Ke2 Kf7 h4 c5 f4 b5 a4 g5 a5 b3 e6+ Kf6 a6 Kf5 a7 Kg4 h6 Kg3 d6 b2 h7 e3 h5 c4 d7 c3 h6 c2 Na3 Nf6 Rb1 Nc6 Qd6 Rg8 h8Q Ne4 h7 Nb4 Qc7 Nd5 Rh6 Nd2 Bg2 Qe7 d8N Bd7 Bf3 b4 Bh5 Kh2 Nc6 Rg6 Qc3 Rg8 h8R Kh1 R8h7 Rg6 Rf7 Rf6 Rg7 Rf5 Qf6 Qf7 Qce5 Qg8 Qf7 Nf3 Bd2 c1Q Bc3 Nd2 Bd4 Qc3 Bc5 Qc2 Be7 Qe4 Re1 b1B Qb2 Bc2 Rc1 Bb1 Rc3 Bc2 Rb3 Bd3+ Ke1 e2 Kf2 Ne3 Kg3 Rb8 a8N Rb7 Nb6 Ng2 Nc8 e1Q+ Kg4 Qf2 Ne2 Qg1 Nc1 Ra7 Kg3 Rf6 Kg4 Qeh7 Kg3 Rf5 Kg4 Ne4 Kf3 Nd2+
4R3/5N2/q2P1Pb1/nRb1NppQ/qN2KQ2/3nbr2/n3kNBB/Qr6 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 b4 Ke5 h4 Kf4 d6 c5 h5 g5 h6 a5 d7 g3 f6 a4 b6 e6 b7 g2 f7 a3 b5 a2 b6 Bg7 f8Q+ Nf6 h7 Ra7 Qh5 Ra8 Nc3 Ra4 Ne4 Ra6 Nf3 g1B Bg2 Nc6 b8N Qe8 d8N Bb7 Rb1 a1Q Nf7 Ng4 N3e5 Na5 Rb5 Bh6 f3 Be3 Nf2 Ra8 Nbc6 Rb8 Nb4 c4+ Ke2 c3 Kd3 Ba8 b7 c2 Bb2 Kg3 f4 c1N+ Ke4 Na2 d4 Qd7 Qc5 Rhf8 h8Q Qc6+ d5 Qa6 f5 Bg7 Nc4 Bgd4 Nce5 Qd1 Qf6 Qa4 Qc1 Bc5 Qa1 Nh2 d6 Nf3 Qfg6 Ne1 f6 Nd3 Qf5 Rh8 Qhg6 Rh3 Qh5 Rc8 Bd4 Rc6 b8Q Rb6+ Nd5 Bc6 Rhb1 Be8 Nb4 Rh1 Qa8 Rf1 Qd5 Rb7 Qc4 Rb6 Nh6 Bg6 Nhf7 Rc6 Rb8 Rb6 Re8 Rb7 Nc2 Rb6 Rb5 Rb1 Nb4 Rf1 Nfg4 Rf3 Nf2 Nb7 Qc2 Bf4 Nh3 Ne1 Nbd3 Ba3 Qd2 Bc5 Ra5 Rb1 Rb5 Na5 Nb4 Nd3 Bg1 Bfe3 Nf4 Bf2 Qc1 Bfd4 Bh2+ Kf2 Nh3+ Ke2 Qf4 Be3 Nf2 exf5+
qBR1bQ2/N1qk2P1/3p4/K2n3r/3q1p1N/1P2BnNN/b3QbB1/1R3r2 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 Ba6 d5 Bc8 d6 cxd6 f4 exf4 c4 Na6 c5 Nb8 h4 g5 hxg5 Qc7 c6 Qd8 cxd7+ Ke7 Kd2 h5 Kc3 a5 g4 f5 e4 f3 b6 f4 g6 h4 e5 a4 Kb4 a3 g5 h3 e6 f2 b7 a2 b3 h2 g7 Qc7 d8N Ra5 g6 Rah5 Nc3 Nd7 b8B R8h7 Rb1 a1Q Be3 Ne5 Nce2 Nf3 Bg2 f1B Nh3 Nf6 g8Q Bg7 Ng3 Bd7 Qe2 Be8 Rg1 h1Q Rc1 Qd7 Rc8 Qd1 Qh8 Nd5+ Ka5 Bd4 Qg8 Bc5 Qh8 Qb7 Qg8 Qd4 Nc6+ Kf6 Na7 Ke7 Qa2 Be2 Rb1 Bd3 Qe2 Qc1 Qh8 Qa8 Qg8 Kf6 e7 Rg7 Qf8+ Ke6 Nf5 Kd7 Nh4 Rgh7 g7 Qcc4 Rf1 Bb1 Rh1 Ba2 Rb1 Bg6 e8N Rh8 Nc7 Be8 Ne6 Qc1 Neg5 Bb6+ Ka6 Qc7 Ne4 R8h6 Ng3 Re6 Bf2 Re3 Bg1 Rd3 Be3 Rd1 Kb5 Rf1 Ka6 Ba5 Kb5 Be1 Ka6 Bf2 Kb5 Qc2 Ka5 Qc7+
b3Nqr1/1BB1kp2/1BRbp1P1/NKr2Q2/P1r1n3/2RR1b2/6n1/QR4q1 w - - 0 1 illegal: No possible last move, all moves rejected
1k1qQ2B/4PQ2/4K3/1Nbp1nR1/1rp4q/R2bNPn1/RBq1R3/n1r3N1 w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 h5 gxh5 e6 a4 Nc6 axb5 Nb8 e4 Qh4 d4 Qg5 d6 Qd8 d5 exd5 e5 f6 Bd3 f5 Be4 fxe4 Kd2 Kd7 Kc3 g5 Kd4 a5 b4 g4 h4 e3 e6+ Ke8 Ke5 c5 h6 e2 h5 e1N h7 c4 h6 g3 e7 Kd7 b6 g2 b7 a4 b5 a3 b6 a2 Rh5 Ra3 Rg5 Ra7 Na3 Nf6 Nc2 Bg7 Bb2 Ra4 Ne3 Nc2 Qh5 Rb4 f3 Ne4+ Kf5 Bd4 Qf7 Nc6 b8Q Rg8 h8N Bc5 h7 Ng3+ Kf6 Rg7 b7 N6d4 Ke5 Kc6 d7 Ndf5 Ke6 Kb6 Re1 a1Q Re2 Qb1 Qa8 Kc7 b8R Qd1 Rb6 Na1 Ra6 Qc2 Ra3 Ba6 Qc6+ Kb8 Ra2 Bb5 Ra3 Ba4 Ra2 Qc7 d8R+ Qc8+ Rd7 Qd8 Ra7 Rg8 Qce8 Rg7 Nh3 g1Q Ra3 Qh2 Ng1 Qh4 Ra2 Bb3 R7a3 Bd6 Ng6 Bc5 h8B Ba4 Nf4 Rg6+ Ke5 Ra6 Ne6 Bd7 Nc7 Be6 Qg7 Bg8 Nb5 Bh7 Qgf7 Rb6 Bd4 Rb1 Bb2 Rc1 Nd4 Rb4 Ke6 Nh6 Nb5 Bd3 Qeg8 Nhf5 Qgf8 Ne4 Q8e8 Neg3
2k1n2B/q2bP1NK/1r1q2nb/1p2N3/1QP2Q2/3p1Nb1/rR5Q/1q2RQ1B w - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 a6 b5 axb5 g4 h5 gxh5 e5 fxe5 b6 a4 Nf6 a5 Ng8 axb6 Ra2 Bg5 Ra7 Bc1 Ra8 Kd2 f5 Kd3 g5 c4 d5 h4 Kd7 e4 f4 e6+ Kc6 b7 Kc7 e5 g4 e7 f3 e8N+ Kd7 e6+ Ke7 h6 f2 h5 g3 h7 g2 h6 Na6 b8Q Qb6 Bb2 Kd8 Qf4 Qa7 Ra2 Qd7 Nf3 g1B Nbd2 Bh2 Ng7 Qa7 Ne5 Bg3 Ndf3 Bd7 Bg2 Nc7 Re1 Kc8 Bh1 f1Q+ Qe2 Qg1 Qf1 Ne8 Ba1 Ne7 Rb2 Ng6 e7 Rg8 h8Q Rb8 h7 Rb6 Ne6 Bh6 Qhf6 Qc7 h8Q Qa7 Ng7 Rf8 Qd6 Rf5 Kd2 d3 Qb4 Qh2+ Ke3 d4+ Ke4 d2 Qh7 d1Q Qh8 Rff6 Qh7 Rfe6 Kf5 d3 Qh8 Qb1 Qh7 Bg5 Qhh3 Ra6 Qhg2 Qh6 Qh2 Ra2 Qe4 Be3 Qf4 Qh8 Kg5 Qf8 Kh6 Rb6 Kh7 Qf6 Qfh4 Bh6 Qf4 Qc6 Rd2 Qc1 Nf7 Qd5 Ne6 Rc2 Bh8 Qd1 N7e5 Ra2 Ng7 Qb1 Rb2 Qd6
R1b2Q1R/B2p1B1R/r1N1P1qq/n5bk/p3NnR1/K1P1rQ2/4q3/1r1B4 w - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 b5 d4 cxd4 a4 e5 axb5 f6 g4 f5 gxf5 exf4 Kd2 Kf7 e4 h5 b4 a5 e5 f3 b6 a4 b5 d3 Kc3 f2 Kb2 h4 g6+ Kg7 c3 h3 b7 h2 e6 d2 f6+ Kh6 f7 Bg7 f8Q Ra7 b6 Ra5 Ka3 Rd5 Nf3 Re5 Nd4 Qe8 Qdf3 Re4 Be2 f1Q Bd1 Qe2 Nc6 Ne7 Rg1 h1R Rg4 Kh5 Ra2 Bf6 g7 Qh2 g8B Bg5 Bf7+ Ng6 Rc2 Re3 Rb2 Na6 b8R Nc5 b7 Nb3 Ra8 Na5 b8R Rf1 Bb3 d1Q Nd2 Qe1 Bd1 Qee2 Ne4 Qf4 Bd2 Qf6 Rb1 Qg7 Be1 Qh6 Bg3 Re1 Bd6 Rg1 Bc5 Re1 Ba7 Rf1 Bg8 Nf4 R1b2 Qeg6 Bf7 Ba6 Re8 Bc8 Rbb8 Rg1 Re7 Re1 Be8 Rf1 Rh7 Rg8 Bf7 Rg1 Bb3 Rb1 Bd1 Qg2 Qe8 Bb7 Bb6 Rb5 Ra7 Rb1 Qe7 Rc8 Qc5 Rc7 Rbh8 Bc8 Ra8 Qe2 Qf8 Ra7 Bd4 Ra6 Bb6 Qf1 Ba7 Qe2
BBqK1n2/P4b2/1p2rB2/kN6/BNq2bRn/QR3b2/2P1p1Q1/r2R3q w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 fxg5 c5 b4 axb4 e4 cxd4 exf5 h5 gxh5 Ra6 Be3 Ra3 Bc1 Ra8 Kf2 e5 Kg3 d5 Kg4 Kd7 h4 Kc6 a4 Kb6 g6 b3 a5+ Kc5 h6 Kb4 g7 b2 h5 e4 h7 e3 a6 e2 h6 d3 a7 d4 Rh4 d2 Bg2 b6 Nh3 d3 Qh1 d1Q Nf2 d2 Na3 b1B Nd3+ Ka5 Nb4 Bb7 f6 Nc6 Kf5 Qd6 f7 Rc8 Rg4 Ne5 Nb5+ Ba2 Bc6 Nd7 Qg2 Be7 f8Q Qc7 Rb1 Bh4 Rb3 Ne7+ Ke6 Bg5 g8B Qh1 Bb2 d1Q Be5 Qd8 Bb8 Qd3 Bf7 Ba8 Be8 Ng6 Be4 Rg8 h8B Nh4 h7 Bf4 Bf6 Rc6+ Kf7 Bb7 h8R Qc8 Ke7 Qc4 Rh5 Rd6 Rd5 Rh8 Rd1 Re6+ Kf7 Ba8 Qe7 Nf8 Bd7 Qb7 Ke8 Qa6 Kd8 Bb7 Bg6 Bf3 Be4 Rh5 Ba8 Rd5 Re1 Rd1 Rg1 Rb1 Rd1 Rc1 Nd6 Ra1 Ba4 Qb7 Nb5 Re5 Rbd3 Qce4 Qc7 Bf7 Qc3 Qc4 Qa3 Re6 Rb3 Qbc8#
7B/P2r1p2/1QP5/p1bQNK1R/4QB2/1n2rr1R/4Bq1n/qB1b1bNk w - - 0 1 legal: proof: b4 a5 g4 b5 f4 c5 d4 cxd4 a4 h5 gxh5 e5 axb5 exf4 b6 Qc7 b5 Qc6 Nc3 Qb7 Nb1 Qa6 bxa6 Kd8 Bh3 Ke7 Bf1 Ke8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 c4 g4 h4 f3 c5 d5+ Kf4 g3 e4 f2 c6 d3 b7 g2 h6 d2 a7 d4 e5 Kd5 h5 d3 e6 Nd7 b8Q Ngf6 e7 Ng4 e8B Bc5 h7 Nh2 h6 Ba6 Qb6 Rd8 Be2 f1R+ Kg5 Ke4 Ra3 Rf8 h8Q Rf3 h7 Ke3 Rc3 Kf2 Qe5 Rh8 Qdb3 d1Q Qbd5 d2 Qee4 Qa4 Rd3 d1B Bf4 Qa1 Na3 Rg8+ Kf5 Rgg3 h8B Re3 Bg4 Rgf3 Nc4 Bb5 Ne5 Bc4 Ne2 g1Q Bh5 Qf1 Ng1 Kg2 Ra3 Qf2 Rd3 Nb8 Bd7 Na6 Bc8 Rd7 Bg4 Nf1 Rh5 Nh2 Ra3 Bf1 Rc3 Nb4 Ba6 Na2 Bd3 Kh1 Bb1 Nc1 Rb3 Qg2 Rd3 Nb3 Rc3 Rh3 Be2 Rhf3 Rg5 Qf2 Qed4 Re4 Rh5 Rg3 Rf3 Re3 Q4e4 Rg6 Rfh3+ Rg2 Ngf3 Rg3 Ng1+ Rgf3
3QNb1k/2r5/q2B1nQ1/1nB1p2b/3N1N2/P2nPRK1/npBRrn2/5B2 w - - 0 1 legal: proof: c4 a5 f4 g5 fxg5 d5 g4 c5 b4 h5 gxh5 axb4 d4 cxd4 cxd5 Bh6 Qc2 Bg7 Qd1 Bf8 Kf2 b5 h4 f5 g6 f4 h6 d3 g7 Kf7 a3 b3 h5 b2 d6 d2 h7 b4 d7 f3 h6 b3 Ra2 Nc6 Nh3 Ra7 Nf4 Qb6+ Kg3 f2 d8Q Nd4 Nc3 b1N Qc2 d1N Be3 Nb2 Rh3 Nf6 Nb5 Bg4 Qf5 Nd3 Rd2 Rg8 h8B b2 h7 Bh5 Qg5 Qa6 Qf5 Nc6 Bc5 Ncb4 e3 Nc3 Nd4 Nba2 Qe4 e6 Qg2 Nb5 Qc6 Rc7 Qcd6 Be7 Qc6 Re8 g8B+ Kf8 Qb6 e5 Bb3 Bd6 Bc2 Kf7 Bg7 Bf8 h8N+ Kg8 Qbd6 Re6 Qc6 Rd6 Nf7 Rd5 Nd6 Kh7 Bh6 Kh8 Ne8 Rdd7 Qe4 Rg7+ Kh4 Rg2 Qg6 Rh2 Bg5 Rg2 Rf3 Rh2+ Bh3 f1N Bd6 Ng3 Bh6 Re2 Bf1 Be7 Bf8 Nh1 Kh3 Nhf2+ Kg3 Rc8 Bh6 Bf8 Bg5 Ng8 Bge7 Nf6 Bc5 Rc6 Bed6 Rc7
1bQ1K1q1/n7/rrBk1B1B/1b1P1p2/p1Qr4/2R1N1R1/1rP1N1Br/2Nn4 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 g4 e5 gxh5 exf4 e4 d5 a4 dxe4 axb5 Ke7 Na3 Kd7 Nb1 Ke8 Ke2 Kd7 d4 a5 h4 f5 d5 g5 c6+ Ke7 c7 a4 b6 g4 h6 e3 Kd3 g3 Kd4 g2 Kc5 f3 h7 e2 b7 e1R h5 f2 h6 Re4 Na3 Nf6 Rh3 Re3 Rg3 Re4 Nc4 Re5 Raa3 Na6+ Kc6 Rb8 Qe2 Ne4 Ne3 Nc3 Qc4 Re4 Ne2 g1R Bg2 Nd1 Rc3 f1R Bd2 Be6 c8B Nc7 Nc1 Nb5 Bd7 Rd4 Be8 Ra8 b8Q Rh1 Qc8 Rh2 Bd7 Rg8 h8B Rg6 h7 Ra6+ Kc5 Rgh6 Bc6 Bd7 Bg7 Re6 h8N Na7 Be5 Bh6 Bg7 Bf4 Ng6+ Ke8 Bf6 Bb8 Nf4 Rfh1 Bb7 Reb6 Nfe2 Bb5 Bc6+ Kf8 Qc7 Qe8 Kd6 Qg6 Kd7 Qg8 Qc8+ Kf7 Ng4 Rf1 Bh6 Rf3 Ra3 Rb3 Ne3 Rb1 Rc3 Rb2 Bh8 Qg7 Kd8 Kf6 Ke8 Ke5 Na2 Kd6 Nac1 Qh7 Bf6 Qg8+
8/1Q3n2/1p1r1Rpb/Q1nr3k/4K1N1/QR1PPQ2/NB4bn/1B1nnq1N w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 Bg4 b5 Bc8 b6 axb6 a4 Qg5 f4 exf4 a5 Qd8 g4 h5 gxh5 Ke7 a6 Kd7 axb7 Ke8 Kf2 f5 Kf3 Kf7 h4 c5 h6 Kg6 e3 c4 d6 c3 h7 c2 h5+ Kh6 d7 g6 Nh3 Qf6 d8Q Nd7 b8Q Ra5 Qe7 Rd5 Qa3 Nc5 Bd3 Bb7 Bb2 c1N Nf2 Ne2 Rf1 Nc3 Nh1 Bc6 Qe2 Nd1 Nc3 Kg5 h6 Kh5 Bb1 Qf7 Kg2+ f3+ Kg3 Rd6 Kf4 Bd5 Qb5 f2 d3 Bg2 Na2 Qf6 Qc6 Qf7 Ke5 f4 Qbb7 f3 Qa5 Nf6 Qca4 Nfe4 Qa3 Rg8 h8N Ng5 h7 Bh6 Q5b4 Rgd8 Qba5 Qf8 Nf7 R8d7 h8Q Rd8 Re1 f1N Qf6 Nd2 Rf1 f2 Kf4 Ndf3 Ne5 Ne1 Ng4 Rd4+ Ke5 R8d6 Qff3 Qf7 Bc2 Qf8 Rc1 Qf7 Bb1 Qf8 Rc3 Qf7 Rg1 f1N Rb3 Nh2 Rf1 Qf8 Qfe4 Qf2 Qf5 Qe2 Qff3 R4d5+ Kf4 Na4 Rf2 Nf7+ Ke4 Qf1 Rc2 Rd8 Rc6 Rd7 Re6 Rd6 Rf6 Nc5+
1Bn2R2/B2kqP2/QQ1NbR1p/2R3nP/4N2K/1Qnp2bn/8/nr4rQ w - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 f5 a4 c5 axb5 Nf6 bxc5 Ng8 f4 g6 e4 Qf6 Be2 Qg5 Bg4 fxe4 f5 Qe7 f6 Qd8 Bf5 gxf5 Kf2 a5 Kg3 d5 c4 f4+ Kh4 f3 g4 e3 b6 a4 c6 e2 c7 e1N c5 a3 b7 f2 g5 f1N c6 a2 e6 d4 g6 d3 e7 h6 g7 Bh3 c8R Nd7 b8B Bg2 c7 Ne3 Na3 Ra7 Nf3 Nd5 Nc4 Nc2 Nfd2 Ne5 Ne4 Rb7 Ncd6+ Kd7 Be3 Ne1 Rf1 Rb1 Bea7 Ng4 f7 Qe8 Qb3 Bh3 Rf6 Nf2 Qb6 Be6 h3 Rb4 Rc1 a1N Rc5 Nc3 Rf3 Nf6 g8Q Nfd5 Qg2 Rg8 Rf6 Rb1 Qh1 Rg1 Qb3 Bg7 Qb6 Qg8 Rf8 Nf3+ Kh5 Ng5 h4 Nfh3 Qb3 Rgf1 Qb6 Rf5 Kg4 Rff1+ Kg3 Rfd1 h5 Rg1+ Kh4 Qh8 Qb3 Nb6 Rcf5 Rbc1 Rg6 Rb1 Nf2 Bd5 Re5 Kc6 e8Q+ Nd7 Qe7 Nb6 Qd8 Bf6 Rf5 Be5 Nfe4 Bf4 Re6 Qe5 Ref6 Qe7 Re5 Be6 c8Q+ Qc7 Qa6 Qe7 Qa5 Nc8 Qdb6+ Kd7 Rc5 Be5 Qaa6 Bg3+
1Q1b3N/1Pbk3b/pPR1r2B/Q3r3/B2b1Qn1/N2Q2p1/q6R/1n1BK1b1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 Qd7 a4 Qd6 axb5 Qd8 g4 h5 e3 hxg4 e4 e5 fxe5 f5 Qf3 fxe4 Qe2 Qf6 Qd1 Qd8 h4 g5 d4 c5 b4 e3 e6 e2 h5 g3 e7 g2 d6 g4 b6 a6 h6 g3 b5 c4 h7 c3 d5 c2 b7 Bf5 Qd3 Nh6 Nh3 g1B Nf4 Be4 Ng6 Kd7 Na3 Ng4 Bh6 c1B Rh2 Bce3 Rc1 Bd4 Rc6 Qa5+ Qd2 Rg8 Nh8 Rg5 Bg2 Bd3 Bf3 Re5 Qb4 Qa4 Qd2 Qc4 Qf4 Qa2 e8B+ Kd8 d7 Bd6 Rg2 Bc7 Rh2 Ke7 d6+ Ke6 d8Q Nd7 Qf8 Nc5 Qf4 Na4 b6 Nc3 Qdg5 Nb1 Qh5 Be4 d7+ Ke7 Qhf5 Re6 Qa5 Bc2 Bg6 Re8 Bf7 Re5 Bb3 Kd8 Ba4 R8e6 Nf7+ Ke7 h8Q Bh7 Qg8 Rd6 d8Q+ Ke6 Qh4 Kd7 Nh8 Rde6 Qhf6 Bde3 Qe4 Bg5 Qff4 Be7 Qb8 Bed8 Qd3+ Bd4 Nc2 Na3 Kd2 e1B+ Kd1 Nb1 Na3 Bf2 Be2 Bg1 Ke1 Be3 Bed1 Bg1+
1q1r1QB1/2RBR3/N2n3Q/N1brP2p/2bP4/1nBrb1k1/B1R1p2r/4K3 w - - 0 1 legal: proof: c4 b5 e4 f5 d4 g5 h4 gxh4 a4 d5 axb5 e6 cxd5 Be7 Qg4 Ba3 dxe6 Bd6 e5 Bf8 Qe4 fxe4 f4 Ke7 g4 a5 b4 h5 f5 c5 f6+ Ke8 f7+ Ke7 b6 c4 g5 a4 b7 a3 g6 h3 b5 a2 b6 e3 g7 h2 Nh3 c3 Nd2 c2 Ng5 Qc7 Bc4 e2 Bb2 c1B Bc3 Na6 b8R Nf6 g8B Ne4 b7 Nd6 Nge4 Nc5 Nb3 Ra3 Na5 Be3 Rc1 a1R Ba2 Nb3 Nc5 Bd7 Na6 Bb5 Rd8 Bc4 b8Q Qa7 Rg1 h1R Rc8 Rh2 Qb6 Qb8 Rg7 Rb1 Rh7 Rb2 Rg7 Rd2 Rc6 Rd3 Rc2 Ra4 Rc8 Rb4 Qc6 Rb5 Rc7+ Kd8 Qe4 Rd5 Qg6 Be7 Qh6 Bf8 Rc6 Ke7 Rh7 Kd8 e7+ Kd7 e8B+ Ke7 Qf4 Ke6 Qh6+ Kf5 Rc7 Kg4 Bb5 Be7 f8Q Kg3 Bd7 Nb7 Qf5 Bc5 Re7 Nd6 Qff6 Rh7 Qh8 Rf7 Q8f6 Rf8 Qf5 Rc8 Qff8 Rd8
4r2N/3BQ2N/2br1nnp/2Q1nP2/K2bb3/B3p1RB/1R1P3k/1R2R1qn w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 g4 Kf7 f4 Kf6 d6 e5 b6 c5 g5+ Kf7 g6+ Kf6 g7 e4 b7 e3 d7 h3 Na3 h2 Nh3 h6 Nc4 b3 Rb1 b2 Qh5 Bd6 Kd1 Ra6 Kc2 Nc6 Kb3 Be5 b8R Nce7 Ng5 Bd4 Nd6 Ng6 Ndf7 Rd6 Ka4 c4 Bh3 c3 Re1 h1N Rb4 Qb6 d8R c2 Rb5 Bb7 Nh7+ Ke7 Rb3 Nf6 g8B Qc6+ Rb5 Qg2 Rb3 Qg1 Rf8 Ng4 f6+ Ke6 Qc5 Bd5 Rb7 Kf5 Rb5 Ke4 f5 Kf3 Re8 Kg3 Re4 Ngf2 Rg4+ Kh2 Rg3 Bf3 Nfg5 Bc6 f7 Ng4 f8Q Nf6 Be6 Rg8 Nf7 Rh8 Qe7 Re8 Ra1 b1B Ba3 c1N Bd7 Bbe4 Nh8 Nd3 Rab1 Nde5 Rb2 Ba8 Rbb1 Bad5 R5b2 Bc6+
n2r2b1/Nr1B1r1B/1kP1R1RN/1r5R/Qb3KQ1/p3P2b/5p1R/4nBq1 w - - 0 1 legal: proof: c4 c5 a4 e5 f4 g5 fxe5 b5 axb5 Na6 d3 Nb8 Bd2 g4 Bc3 g3 d4 cxd4 hxg3 dxc3 g4 Bc5 g5 Bf8 Kf2 d5 Kf3 Kd7 g4 Kc7 b4 f5 c5 h5 c6 a5 e3 h4 g6 d4 g5 a4 g7 c2 e6 c1R e7 f4 e8B a3 g6 d3 Nc3 h3 Bd7 h2 Qa4 d2 Nge2 d1R Nd4 Rb1 Ra2 Qg5 Nf5 Ne7 g8R Rh7 g7 Ra7 Nh6 Qg1 Ke4 f3 Kf4 Rb7 b6+ Kd6 b5 Kc5 Rg2 f2 Rg5+ Nf5 Rh5 Be7 Re8 Rd3 g8B Rf7 Bh7 Na6 Rg8 Bf8 Rg6 Nc7 Re6 Na8 Rg6 Rc7 b7 Kb6 b8Q+ Rb7 Qd6 Be7 Qe6 Nh4+ Qf5 Bb4 Re6 Rg7 Qg4 Nf3 Rg6 Ne1 Re6 Rd5 Rg6 Kc5 b6 Rd1 Nb5 Rf7+ Bf5 Rd8 Na7 R1d5 Re6 Rbc7 b7 Kb6 b8R+ Rb7 Rg6 Be6 Rc8 Rb5 Rc7 Bd5 Re7 Bg2 Re5 Bh3 Ree6 Qg2 Rg1 Qh1 Rg3 Qg1 Rg2 h1B Rh2 Bf3 Ref6 Bd5 Bd7 Rg7 Rd6 Bg8 Rde6 Rf7+
Q1KqB3/rr3pn1/1r2bNr1/nQ2b3/1R1p2P1/3P1NR1/Q1N1n3/B2N1k2 w - - 0 1 illegal: No possible last move
1q1n1QK1/2P2nN1/1Qn2kP1/2B1b1b1/2Np2B1/p6B/Rr5N/rrR1Nn2 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Kd2 Kf7 Kd3 d5 c4 a5 b4 h5 f6 e5 b6 h4 c5 f3 b7 f2 b5 h3 c6 h2 c7 a4 g6+ Ke6 f7 a3 g5 Nd7 b8Q Ra5 b6 Rh4 g7 Rh7 b7 Be7 g6 Rb5 f8N+ Kf6 Nf3 Rb2 Ne1 Nh6 g8B Nf7 Ne6 Nf8 Bh3 f1N Ng7 Ne6 Nd2 Bd6 Qa8 Qb8 Ra2 Ned8 Ndf3 Rh5 Rg1 h1N Be3 Nhg3 Qb3 Nf5 Nh2 Ne7 Qb6 Nec6 Bf2 Rg5 Rh1 Rg1 Be3 Nh6 Bge6 Nhf7 Beg4 Rb5 Kc2 d3+ Kc3 d2 Bc5 d4+ Kc4 d1R Kd5 Rg2 Rg1 e4 Rh1 e3 Rg1 Qa7 b8N e2 Rh1 Rbb1 Nd7+ Kg5 Ne5 Kf6 Qc8 Qb8 Nc4 Be5 Rg1 Nb7 Qf8 Nd8 Nc2 e1B Rh1 Bh4 Ne1 Nb7 Rg1 Kg5 Ke6 Rgb2 Rg3 Ra1 Rc3 Rdb1 Rc1 Nbd8+ Kd7 Bf2 Ke8 Be3 Qd6 Rb3 Kf8 R3b2 Kg8 B3f4 Qf8 Kf6 Ne3 Bh6 Nc4 Bg5
k5BN/bq2rbQ1/3bN1P1/4R3/br3Qn1/1PR3pB/qn1p1Q2/K1R3R1 w - - 0 1 illegal: No possible last move, all moves rejected
1bq1bQ2/2R1q1NN/5P2/1pqnP3/1QR5/2RqBr1K/1N2pr1n/k4BN1 w - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 g4 h5 gxh5 d5 cxd5 e6 d4 e5 dxe5 fxe4 a4 Kf7 h4 b5 f4 g5 Kf2 c5 Kg3 g4 a5 c4 f5 c3 d6 c2 h6 e3 h5 e2 h7 b3 a6 b2 a7 Nf6 h6 Bd7 Qd4 Be8 d7 Na6 Na3 b1Q Kh4 g3 Bg5 c1Q Kh3 g2 Nc4 Ng4 Ra3 Qd3+ Be3 Qe7 Nb2 Qc8 Rc3 Nh2 Qb4 Nc7 d8Q Rb8 a8N Nd5 Nc7 Rb6 Rc4 Rf6 Ne6 Rg8 h8R Rg5 h7 Rh5+ Rh4 Rg5 Ng7 Rh5 Nf3 g1Q Qdd6 Rg5 Rc4 Rg2 Rg8 Rf2 Qb8 Qec7 Rc3 Bd6 h8N+ Ke7 Nf7 Qc5 Nh4 Qg5 Nf3 Bc7 Qa8 Bb8 Ng1 Kd7 Qaa3 Kc6 Rh8 Kb6 Rh4 Kc6 Rhc4 Kb6 Nh8 Rf8 Nf7 Qe7 Ng5 Rf6 Qbb3 Rf7 Na4+ Ka5 Nh7 Qcd4 Rc7 Rf8 Qd6 Qc5 Nb2 Rf7 Qc4 Rf8 Qe4 Rf7 Qf3 Kb4 Rc4+ Kb3 Qg4 Ka2 f6 Ka1 Rc3 Rf5 Qb4 Rf8 Rc4 Rg8 Qd8 Bh5 Qf8 Be8 Nh5 Rg2 Ng7 Ng4 Rh2 Rgf2 Rg2 Nh2 Rc3 Qc6 Rg4 Qcc5 Rgc4 R5f3+
k6b/5NnP/bBR4N/rq1nNp2/2K3Q1/1pR3bN/3B1Pr1/2Bb1Q1q w - - 0 1 illegal: No possible last move
1rN1k2K/1R2r1p1/nQ2B2q/1b2R1bn/q3N3/R1Q4P/nPp2RB1/2nB4 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 h5 a4 f5 axb5 h4 g4 fxg4 d3 e5 fxe5 Qe7 Bf4 Qd8 Bg3 hxg3 Kd2 c5 Ke3 a5 Ke4 a4 d6 a3 b6 a2 d4 g2 e6 g3 Kf5 c4 Kg6 c3 e4 c2 e5 Nd7 h3 Rh7 d5 Ra6 b7 Ra8 b8R Ra7 e7 Nc5 Ne2 g1N Nd2 g2 Nc3 Nd3 Rh2 Bg4 Nb5 Nc5 Ne4 Be2 Qd4 Qc8 Qc3 Ra6 Na7 Qd8 Rb7 Bc4 Be2 Qc7 Bd1 Kd7 e8B+ Kd8 Bb5 Ne2 Bd7 g1N Rf2 Qb6 Bg4 Nf6 d7 Nh5+ Kf7 Nd3 Kg8 Qh6 Bf3 Ke7 e6 Nb4 Bg2 Rd6 d8R+ Rd7 Rc8 Na6 Rc5 Kd8 d6 Be7 Rcb5 Bg5 Re5 Rc7 d7 Bb5 Rc1 a1Q Rb1 Qa4 Ra1 Qg6 Ra3 Qf6 Nc8 Rh6 Ra7 Rg6 Kh7 Rb7 Kh8 Rb8 Qc6 Nc3 Rb7 Na2 Qc3 Nc7 Ncd6 Ke7+ Nc8+ Kf8 e7+ Kf7 d8Q Na6 Bf1 Ne2 Qb6 Nec1 e8B+ Kf8 Bf7 Qe6 Bg8+ Ke8 Bg2 Rf6 Bh7 Rf7 Bf5 Re7 Bfg4 Qg6 Be6 Qh6+
QK2q2n/1P4n1/bQ4pk/2b2n2/1r2p2B/NBNB1B1r/PQ3n2/2R2R1q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 c5 gxh5 c4 b5 c3 dxc3 Qb6 c4 Ra7 c5 Ra8 Qd2 Qd8 c4 b6 c6 Rh6 c5 Rh7 c7 Bb7 c6 Rh6 Qb4 axb4 Nd2 Bc8 Rb1 Rh7 Rb2 Rh6 Rc2 Rh8 Rc5 bxc5 Ke2 Kf7 Kd3 d5 h4 e5 f4 g6 b6 Kg7 b7 b3 f6+ Kh7 f5 b2 h6 b1N f7 d4 Ke4 d3 h5 c4 f6 c3 Ne2 c2 Nc4 d2 Nc3 d1Q Bg5 c1N Na3 Be6 c8B Bd6 f8R Bc5 c7 Qc2+ Bd3 Qb2 f7 Qe8 Bh4 Nb3 Rc1 Bc4 Be6 Nc6 c8B Ba6 Kd5 e4 Bg4 Qf2 Bf3 Qe1 Be6 Nce7+ Ke5 Nd4 Bb3 Ndf5 Ke6 Qb8 Kd7 Qe8+ Kc7 Qh1 Ne2 Nc8 Nc3 Ra7 Kb8 Nge7 Rg8 Ng7 f8Q Nef5 Qf6 Ncd6+ Qd8 Qa4 Qb6 Nf7 Rc8 Qe8 Rf1 Kg8 h7+ Kf8 Nd5 Nc3 h6 Nd1 Nc3 Nf2 Qc6 Bc4 Qe6 Ra4 Qb6 Rg8 h8Q Ba6 h7 Rb4 Rb1 Ne6 Qe5 Nh8 Rf1 Kf7 Qh2 Kg7 Qe5+ Kh6 Qf6 Rg7 Qfd8 Nf7 h8Q+ Rh7 Qe5 Neg7 Qh2 Ng4 Qb2 Nh8 Rc7 Qf7 Qe8 Nf2 Qa4 Qe8+ Rc8 Bb5 Qa8 Ba6 Na4 Be3 Bd8 Bd4 Rcc1 Bc5 Bg2 Kh5 Nc3 Ne7 Bf3+ Kg5 Qc6 Rh3 Qf6+ Kh6 Qb6 Nc8 Be7 Nd6+ Bd8 Qf7 Be7 Ndf5 Bh4 Qe8+
qrRQ3B/1p3Nn1/q3r3/1pbB1PB1/1K4Q1/NNr1r3/b2nP1R1/N2k4 w - - 0 1 legal: proof: d4 f5 b4 h5 g4 e5 gxh5 d5 dxe5 d4 b5 d3 cxd3 a6 d4 axb5 d5 Nd7 Qd4 Nb8 Qg4 fxg4 Kd2 Ke7 Kc3 g5 h4 c5 a4 g3 f4 c4 e6 Kf6 a5 Kf5 d6 Ke4 e7 g4 e8Q+ Qe7 f5 g2 a6 g3 h6 Qe5+ Kb4 c3 a7 c2 h5 Kd4 h7 Nf6 h6 Ne4 Bg5 c1R Na3 Rc3 Qh5 Nd7 Rc1 Qf6 Rh2 Ndc5 d7 Rb8 a8N Nd2 Nc7 Qa6 d8Q+ Ke4 Qg6 Be6 Nf3 g1Q Nd4 g2 Ndc2 Ba2 Ne6 Qf2 Qh5 g1R Ned4 Rgg3 Nb3 Rge3 Rg2 Qe1 Nca1 Ne6+ Be7 Rg8 h8N Rg6 h7 Ng7 Nf7 Re6 h8B Qa8 Qg5 Qg3 Qg6 Qc7 Qh5 Qc6 Qg5 Qca6 Qh5 Rh3 Qg4+ Ke3 Rc2 Rd3 Rc8 Rc3 Rh2 Rf3 Bg2 Kf2 Bh1+ Ke1 Bg2 Rfe3 Bd5 Kd1 Rg2 Rc5 Bf6 Bd6 Bg5 Rcc3+ Rc5 Bc7 Rc6 Bb6 Rc8 Bc5+
2Q4N/P6q/r1bR2B1/N1brpp2/6nr/K2RRBn1/2RQ2P1/k1rqN3 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 e6 f6 Kd7 f7 Bd6 f8N+ Ke8 h4 Ke7 f4 Bc5 f5 Kd6 f6 Qe7 f7 Qg5 hxg5 Ke7 Bb2 Bd6 Bf6+ gxf6 d4 c5 Kd2 b5 Kc1 h5 Kb2 c4 a4 h4 g6 e5 a5 f5 a6 h3 g7 h2 Nh7 b3 Na3 b4 Nf8 Nh6 g8B Ng4 Qd2 Bc5 Ra2 Kd6 Bh7 Bd7 Be2 Bc6 Bg6 Rh4 Nf3 Nd7 Ne1 Ndf6 Bf3 Ne4 a7 Rd8 Rf1 h1Q Rf2 Qh3 Re2 Ng3 Re3 Rd7 Bh5 Rd8 Ng6 Qh1 Nh8 c3+ Kb1 c2+ Kb2 c1R Bg6 Rb8 f8R Rb6 Re8 Ra6 Re6+ Kc7 d6+ Kb6 d5 Ka5 d7 Ka4 d6 Rd1 Qc3 Rd5 d8Q Qh2 d7 Qh3 Kb1 b2 Qc8 Qh2 Kc2 b1R d8R Rc1+ Kb2 b3 Qc2 Kb4 Nc4 Qh1 Na5 Qh3 Ra1 Qh2 Rb1 Ka4 Red6 Qh1 Kc3 Ka3 Rb2 Qh2 Kc4 Qh3 Qc3 Qh1 Rd2 Qh3 Rdd3 Ka2 R8d7 b2 Rc7 Ka1 Kb3 Qh1 Qb4 b1Q+ Ka3 Bb6 Qf4 Qc2 Qb4 Qd1 Qd2 Bc5+ Qb4 Rh3 Rb7 Bd4 Qd2 Rh6 Rb2 Bc5+ Qb4 Qh4 Rc2 Qe7 Qa8 Rh4 Qc8 Bb6 Qd2 Qh7 Qd8 Bd4 Qc8 Bc5+
R4N2/pQ1b1QN1/n2r3r/P1R4Q/n1b1K3/1R1P2q1/bBpk2B1/Qb1q4 w - - 0 1 legal: proof: c4 d5 e4 f5 exf5 c6 b4 c5 bxc5 dxc4 h4 g5 g4 Nc6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 Kd7 Kf3 Kc6 a4 Kd5 f6 Kd4 f7 h5 f8Q e5 a5 b5 c6 e4+ Kf2 f3 g7 b4 g6 b3 c7 b2 Rh3 c3 Qa3 h4 Bg2 Kd3 Ne2 Nf6 g8R Rh6 g7 Bd7 c8Q Nd5 Ng3 Na6 Nf5 Nb6 Qb7 Na4 Qe2+ Kc2 Ke3 f2 Qh5 f1B Kd4 e3 Ke4 e2 Qa2 Rc8 Na3+ Kd1 Nc2 b1B Bb2 Rcc6 Qa3 Qg5 Ra8 Qg3 g8Q Rcf6 Ng7 Rd6 Rh2 h3 Qgf7 Rdg6 Rh1 h2 Rg1 h1B d3 Kd2 Nd4 c2 Qaa2 Rd6 Nde6 Bb5 Nf8 e1Q+ Kf5 Qd1 Ke4 Be2 Rf1 Bg4 Rf5 Bc4 Rc5 Bd7 Qa3 Bba2 Rc1 Bb1 Qa1 Qg1 Rf1 Bca2 Rff5 Qd1 Rc3 Bc4 Rc5 Bca2 Bf3 Bg2 Rb3 Bgh3 Bh1 Bhe6 Bg2 Bc4
6Q1/1n1b1q2/rk5K/bp2RNP1/1Bpn1RN1/bPQ2B1q/4N1BN/q6n w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 d5 cxd5 gxh4 Bd3 a4 Be2 Na6 Bf1 Nb8 d4 c5 b3 b5 Bc4 a3 Bf1 c4 Qd2 Ra6 Qc2 Rc6 Qb2 Rc5 dxc5 axb2 Ke2 Kd7 Ke3 Kc7 Kf4 h5 Kg5 e5+ f6 e4 g4 e3 f4 h3 a4 h4 d6+ Kb7 c6+ Kb6 c7 e2 a5+ Kb7 a6+ Ka7 d7 e1B f5 h2 Nc3 b1Q Nf3 h3 Bg2 Bb4 Ba3 Bd6 Rf1 h1N Nh2 Qf8 d8N Rh4 f7 Qe4 f6 Bdg3 Nc6+ Kb6 a7 Ka6 a8B Bd7 c8N Rh6 Ne5 Qd3 Nd6 Ne7 Nf5 Kb6 Ne2 Nc8 Baf3 Nd6 Bb4 Nb7 Rd1 Qc3 Rd5 Nc6 Rc5 Qe8 f8Q Qf7 Qg8 Nd4 Rd5 Rg6+ Kh5 Bf4 g5 Bc1 Neg4 Ba3 Re5 Qe3 Qg7 Qf2 Qh8 Qg3 Rf2 Rg8+ Kh6 Ra8 Rf1 Ra6 Qg7 Qg8 f7 Bd2 f8Q Qf7 Bd5 Be1 Rf4 Bd2 Nf1 h2 Bdf3 Bc3 Qfg8 Be1 Bf8 Ba5 Q7h8 Nf2 Bb4 h1Q+ Nfh2 Qa1 Rd5 Nh1 Qf6+ Nc6 Qc3 Nd4 Re5 Qh3+
1Nn1BrQ1/3N1B1n/1pr5/bq2RB1N/5PK1/Rpk5/1qB2n1P/1r2qQ2 w - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 a5 Bb2 e4 Bf6 axb4 Bg5 h6 f3 hxg5 fxe4 f5 e5 f4 Qb3 f3 Kd1 f2 Kc1 Bg4 Qd1 Bf3 gxf3 Be7 Bg2 Bc5 Bf1 Bf8 d4 Kd7 Kd2 c5 Ke3 b3 a4 b6 e6+ Kd6 e7 g6 e8B c4 a5 c3 f4 g4 a6 c2 a7 c1N Nf3 g3 Nc3 g2 Ne5 g1Q Kf3 g5 e4 Qf6 Bf7 Ne2 Ra3 Qg6 Nd7 Rh6 Bh3 Ne7 Qf1 Nc1 Ne2 Nc8 Ng3 Qg8 Bf5 Nd3 Kg4 Qg2 Rg1 Qg7 Rh1 Qe5 Rg1 Qh1 Nh5 Rg6 Rg3 Be7 Re3 Qh8 Ndf6 Nd7 Re2 Rb8 a8B Nf8 Nd7 Nh7 Re3 Na7 Bb7 Rf8 Bc6 Nc8 e5+ Kc7 e6 Bb4 e7 Kd6 e8B Ba5 Re5 Qe4 Qh1 f1Q Qg2 Qfe1 Qf1 Qb4 Bb5 Qee1 Bc4 Rh6 B7g6 Qb5 Bgf7 Nb2 Bcd3 Nd1 Bc2 Nf2+ Kf3 Kc7 d6+ Kc6 Kg3 g4 d5+ Kb7 Nc5+ Ka7 d7 Rc6 d8N Qf6 Nd7 Ka6 d6 Qh8 Kg2 g3 Kf3 g2 Kg3 g1R+ Kf3 Rc5 Nc6 Qf6 Rd5 Qb2 Re5 Qc4 Ncb8+ Kb5 Bg8 Kb4 Bgf7 Rh1 Kg3 Rc6 Kh4 Nh3+ Kg4 Qd3 Ndf6 Qa6 d7 Qb5 d8Q Kc3 Nfd7 Nf2+ Kg3 Rg1+ Kh4 Rgg6 Qg5 Rgd6 Qg8 Rd1 Kg3 Rb1 Kh4 Nd1+ Kg4 Nf2+
Nqr5/qB1P3r/2B2p1n/3Q1Nq1/2nPp1k1/B2R1bn1/2Q1B3/2K1N1Rr w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 f4 gxh4 Ra5 e5 Ra1 e4 e3 Bd6 Be2 Be5 fxe5 Bg4 Bc4 Qg5 Bf1 Be2 Kf2 Qxe3+ Ke1 Qg5 Ra4 Qf6 Ra1 Qd8 b4 Ke7 d4 a5 Kd2 h5 g4 c5 g5 f6 g6 h3 e6 h4 b6 c4 b7 h2 b5 h3 d6+ Kf8 g7+ Ke8 e7 Kf7 e8B+ Ke6 b6 Kf5 Ba3 c3+ Kc1 c2 Nd2 a4 Ngf3 Nc6 b8N Ra6 b7 Qb6 Nc4 Qa7 Nb6 Nh6 g8B Kg4 Ne1 Na5 Na8 Bf3 Be2 Rh7 Bc6 Nc4 d7 Ra5 Rb1 Rc5 Rb3 Qb6 Rf1 h1N Rd3 h2 Rg1+ Ng3 Bgd5 h1R Na6 Ra5 b8Q Rc5 Qd6 Qb8 Bb7 Rc8 N6c7 Nd2 Nb5 Nc4 Bb4 a3 Bdc6 a2 Qd5 Na5 Nd6 a1Q+ Kd2 Qa2 Kc1 Nc4 Nf5 Qaa7 Ba3 Nd2 Kb2 c1Q+ Ka2 Qd6 Qc2 Nc4 Kb3 Qcf4 Ka2 Qg5 Kb1 Nd2+ Kb2 Qdb8 Kc1 Nc4+
4r1n1/B1PKqQQN/b1P2N1R/3nQ1rN/kr1qn3/6p1/1pR2B2/6qQ w - - 0 1 legal: proof: g4 c5 f4 f5 e4 h5 exf5 a6 d4 e6 b4 Be7 g5 a5 dxc5 axb4 Be2 Bf6 Bg4 hxg4 gxf6 Ra5 Nd2 Ra4 Nb1 Ra8 Ke2 g5 Kd3 b5 Ke4 d5+ Ke5 Kd7 h4 Kc6 a4 b3 c4 b2 a5 d4 f7 g3 f8B d3 h5 d2 a6 b4 h6 g2 a7 b3 h7 g4 f6 g3 f5 Qd3 f7 Na6 f6 Qf1 Nc3 b1R Qh5 d1N Nh3 g1Q Ne4 b2 Nf4 Qh3 Be3 Rc1 Bf2 Rc3 Rc1 Nb4 Rc2 Rb8 a8Q+ Kd7 c6+ Kc7 B8c5 Qh4 f8Q Nd5 f7 Ba6 Qg7 Rb4 Ba7 Ra3 c5 Ra5 Qhg6 N1c3 Nf6 Ne4 f8N+ Nde7 Qae8 Nd2 Rc4 Nh6 Q6f7 Rg8 h8Q Qg4 Kd4 e5+ Ke3 e4 Kd4 e3 Ke5 e2 Rc2 Qh4 Ke6 Rab5 Qhh7 e1Q+ Qe4 Rh8 N8h7 Rf8 Rh3 Ng8 Rh2 Qg5 Rh6 Qh4 N4h5 Qd1 Qh1 Ne4 Ng4 Qd3 Qf5 Qd2 Qef7 Re8 Qfg5 Qd4 Q5f6 Kc8 c7 Kb7 Nf8 Kc6 Nh7 Ra5 Qf5 Kb5 c6+ Ka4 Q5f6 Rf5 Qe5 Nd5+ Kd7 Qf6 Qee6 Qfe5 Ngf6 Rg5 Qee7 Qc5 Qee6 Qed4 Qe5 Qe7+
8/P2PbnR1/p2q1q1b/Q1B4N/p1q1B2Q/4QKNN/r1Q4b/knnR4 w - - 0 1 illegal: No proof kernel
4q2q/R5NR/r3B1bQ/1k5n/4nqpK/Q1QpBPP1/R1N3rQ/2q1q3 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 h4 a5 b4 axb4 Bc4 g5 Bf1 g4 Qf3 Bh6 Qd1 Bg5 hxg5 Qa5 Nd2 Qc7 Nb1 Qd8 c4 h5 g6 d5 g7 Kd7 f6 e5 b6 Kc6 c5 e4 f7 b3 f8Q d3 b7 e3 f3 b2 Nh3 d4 Ra2 h4 Nf4 h3 Na3 b1Q Nc2 h2 Nh5 e2 Kf2 d2 Kg3 Nd7 b8Q Ngf6 g8R Qb4 Qh6 Ra6 Rg7 Qe8 Kh4 e1Q+ g3 Qc4 Qa7 Kb5 c6 Ne4 c7 Ndf6 Qe2 d1Q Be3 Bf5 c8Q Bg6 Rd7 Qdd2 Ng7 Nh5 Qaa8 Qdd1 Ra7 Qc1 Qg2 Rh7 Be2 Rh8 Bd1 Qa4 Qc3 d3 Qg1 Qe6 Qf8 Qe8 Qfa3 Qb4 Na1 Qd6 Bb3 Qf4 Be6 Rh7 Qf2 Rh8 Nc2 Rh7 Rg1 Rh8 Rg2 h1Q+ Rh2 Rh7 Nf5 Rc7 Ng7 Rc4 Rh3 Rb4 Qh2 Rb2 Na1 Re2 Nc2 Rg2 Qh7 Qed2 Qg1 Qff7 Rh2 Qh8 Bd4 Qdf4 Be3 Qf1 Rh3 Nhf6 Qh2 Qc1 Qh5+ Nc5 Qh7 Qhe1 Qh5 Qb4 Kg5 Qfe8 Qh7 Qe4 Rh5 Qf4+ Kh4 Be4 Rh6 Nh5 Qg6 Bf5 Rh7 Ne4 Qh6 Bg6
RnBn4/4R3/q5qn/3b1Pr1/2PQBk1B/2N1pB1Q/b2K1p1n/1N2n1N1 w - - 0 1 illegal: No possible last move
3Rn1N1/4Bn1r/qqP5/4pP1q/k3N1Q1/1b1pB1KN/1Q5R/qr1Q2Qq w - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 cxd4 f4 f5 gxf5 e6 e4 Ke7 e5 Ke8 Be2 Be7 Bg4 Bf6 exf6 hxg4 Kf2 g5 h4 a5 c4 d5 b4 Kd7 f7 e5 f8Q a4 c5 d3 b6 Kc6 b7 Kb5 f6 d2 h5 a3 f5 d4 h6 d3 f7 a2 c6 Qe8 h7 Nd7 b8N Ndf6 Qg7 Nh6 f8B Nf7 Nh3 Be6 Be7 Bb3 Nd7 Rb8 Kg3 Qc8 Rh2 Ne8 Nf6 Qa6 Ng8 Ka4 b5 Rb7 Qg1 d1Q Nd2 Rb6 Rb1 a1Q Ne4 Rb8 b6 Rb7 Kg2 g3 Be3 Qh5 Qd1 Rb8 b7 g4 Qg5 Rd8 b8Q Rd5 Qd6 Rb5 Qd4+ Rb4 Qb2 Rb5 Kf1 g2+ Kf2 Rb6 Kg3 g1Q+ Qg2 Qh1 Qgg1 Bc2 Rb5 Bb3 Rd5 Rb8 Qf4 Rb5 Qff2 Rb7 Rd8 Rb8 Qb2 Rb6 Kf2 g3+ Ke1 g2 Kf2 Rb4 Qg4 Rc4 Kf3 Rc1 Kg3 Rb1 Nh6 Rg8 h8Q Rg7 Ng8 Rh7 Q4d1 Qb7 Qg7 Qa6 Qgf1 g1Q+ Qfg2 Qb6 Qgg4 Qe1+ Qgf2 Qea5 Qfg1 Qaa6
6q1/5rnb/KpRQ1QRn/BN1NB3/qQ3Q1B/2nn2P1/p2P4/rnk5 w - - 0 1 illegal: No extended proof kernel
2Rb1q1n/6N1/pq1N1b1P/2BK1QR1/4nn2/1P3n1n/B1Q2r1p/R2B2Bk w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 a4 cxd4 Bd2 h5 Be3 b5 axb5 h4 Bc1 a6 h3 g5 Qd3 Rh5 Qd1 Bb7 Ra4 Bf3 gxh5 g4 Ra1 g3 Ra4 Bg4 hxg4 Ra7 Ra1 Rc7 Nd2 Rc6 Nb1 Rh6 Ra2 Rh7 Ra1 Rh8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 c4 f5+ Kd5 h3 e4 Kh4 g5 h2 h6 f3 b3 f4 g6 d3 c5 d2 g7 f2 e5 f3 c6 g2 e6 Kg3 e7 Qb6 e8R Nf6+ Ke5 d5 g8Q+ Bg7 c7 d4 c8B d3 Qe6 Nd5+ Ke4 Bf6 Be2 f1N Na3 f2 Nc4 Rf8 Qf5 Nf4 Nh3 g1B Ba3 Kg2 Qc2 d1N Bc5 d2 Nd6 Nc6 Ng5 Ne7 Ne6 Neg6 Ng7 Nh8 Be6 Rf7 Rc8 Bd8 Ke5 Nc3 Bd1 Ne4 Bc4 Rf8 Bd3 Rf7 Qc1 Rf8 Bb1 Rf6 Qc2 Rf8 Bg4 d1N Ba2 Nfd2 Be2 f1Q Bh5 Qb8 b6 Ndf2 b7 N2h3 Bd1 Qc7 b8B Qb6 Bc7 Bf2 Bb8 Bfh4 Ba7 Qf3 Rf1 Bhg5 Rf2+ Kh1 Rg2 Bge7 Kd4 Rf7 Rg5 Qf1 Qd3 Nf3+ Kc4 Bf6 Bg1 Qff2 Qc2 Qc6+ Bc5 Qe8 Bb4 Qf8 Ba3 Qb6 Bac5 Rd7 Nb5 Rd2 Nd6 Nd3 Kd5 Re2 Qh7 Rf2 Qf5 Ndf4+
1b1rQ1qb/1QN2P1K/2p2R1p/1R1R1N2/k2n2q1/q2q4/4q2P/Qn3BBR w - - 0 1 legal: proof: c4 b5 e4 d5 f4 e5 a4 a6 axb5 dxc4 d4 exd4 e5 Qd5 e6 Qd8 Be3 a5 Bd2 Ra6 Bc1 Rc6 Qa4 Rc5 Qd1 Re5+ fxe5 Qg5 Ke2 Qe7 Ke1 Qd8 Bf4 f5 Bc1 Bb7 g4 f4 Na3 Be4 Nb1 Bf5 gxf5 Qf6 Qd3 Qe7 Qd1 Qd8 Kf2 g5 Kf3 c3 Ke4 d3 b4 f3 e7 Kd7 e8R c2 b6 Kc6 f6 Kb5 Kf5 f2 e6 g4 b7 h6 Kg6 g3 f7 g2 e7 a4 Nh3 g1Q+ Ng5 a3 Ra2 Qg4 Nd2 Nf6 Nf3 Ne4 Nd4+ Ka4 b5 d2 b6 Nc6 b8R Nc3 b7 Nb1 Nf5 Nd4 Qe1 d1Q Be3 c1Q Rd2 Qge2 Ne6 c6 Nc7 a2 Rd3 Rg8+ Kh7 Qa3 Qc3 Bg7 Qa1 Bh8 Rd2 Qc8 Rd8 Qg4 e8Q Qde2 Rd6 Be5 Rf6 Bf4 Bh3 f1Q Bg1 Qff3 Bf1 Qfd3 Rb2 Qd8 Rb5 Be5 Rc8 Bf4 b8Q Bg3 Qc3 a1B Qb7 Be5 Rb8 Rf8 Rd5 Qc8 Qe7 Rd8 Qe8 Bb2 Re6 Bh8 Rf6 Bc1 Qa1 Bf4 Qbb2 Bd6 Rbb5 Qa8 Rbc5 Qc8 Qb7 Qa8 Rb5 Qc8 Na6 Bb8 Nc7 Rd7 Qe5 Qf8 Qe7 Rd8 Qe8 Qfg8+
4Rn1B/1P1b3n/2nNn3/nP1pRq1N/B2b4/q1R3K1/N1Q2Q1p/k1r1R3 w - - 0 1 legal: proof: f4 g5 fxg5 b5 g6 a5 d4 c5 h4 cxd4 a4 f5 axb5 f4 g4 Ra6 e4 Rf6 g5 Rf5 h5 Bg7 h6 Bxh6 exf5 Bf8 Kf2 e5 c4 Ke7 b4 Kd6 c5+ Kd5 g7 h5 g6 d3 c6 Kc4 c7 d5 b6 a4 b7 h4 f6 h3 f7 f3 b5 e4 Ra3 h2 Qd2 e3+ Kg3 e2 Qa5 e1N Bb2 f2 Nh3 Qe7 Ra2 Kb3 Qa6 d2 Qd6 d1N Qf6 a3 Qd4 Nf6 g8N Bd7 c8R Ng2 g7 Nh7 Qd3+ Nc3 Nf4 Nc6 Nh5 Nh4 Ngf6 Ng6 g8R Bg7 Ne4 Ngf8 Nd6 Bd4 Be2 f1Q Qd2 Qf5 Re1 Na4 Nc3 Nc5 Bd1+ Qc2 Re5 Nce6 Ra1 a2 Rc1 a1N Na2 Ng6 Rge8 Ngf8 Bc3 Ka3 Qg2 Qf5 Ba4 Nb3 Rce1 Nba5 Rc7 Qd8 Qc2 Qa8 Rcc8 Rg8+ Kh4 Rg4+ Kh3 Re4+ Kg3 Re2 Ba1 Rd2 Rc7 Rd1 Rcc8 Rc1 Bc3 Ng6 f8Q Qa7 Qf6 Ngf8 Qh4 Qa8 Qf4 Qa7 Qff2 Qc5 Nf7 Ne7 R5e2 Be3 Bf6 Bd4 Re5 Qb4 Rc5 Nec6 Bh8 Qb2 Nd6 Qb4 Qd1 Qb2 Rc3+ Qb3 Qg1 Kb2 Qf2+ Ka1 Qdc2 Qa3
2RR1RR1/3Br2n/3q2b1/2N4k/QP1Q1n2/N2nqK2/bqq1ppPN/4B3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 d5 axb5 g5 Kd2 gxh4 Ke1 d3 f3 e5 Be3 a5 Bd2 d4 Bc1 Bg7 f4 Ra6 Qh5 Rd6 Qd1 Rd5 exd5 e4 Nc3 Bf6 Nb1 Be5 fxe5 Bb7 Rh3 Ba6 Rh1 Bc8 Kf2 h5 c4 f5 b4 Kf7 c5 Kg6 e6 f4 c6 a4 c7 a3 b6 h3 b7 a2 e7 h4 e8N f3 d6 d2 d7 h2 Bd3 h3 Nc3 Nc6 b8R Nce7 Rb7 Kh5 Qa4 d1Q Bd2 e3+ Kg3 e2 Bc4 d3 Kf2 Nd5 Bf4 d2 Nb5 Qc2 Bb3 d1B Na3 Rh7 Rb8 Ngf6 Bd2 Nf4 Be6 Re7 Nd6 Nh7 Be1 Bb7 c8Q Be4 Qc4 Bg6 Rc1 a1Q Ne4 Qab2 Nc5 Qb6 d8R Qd6 Ke3 f2 Nf3 Nd3 Rf1 h1Q Qd4 h2 Rg8 Qg1 Ra8 h1N Raf8 Ng3 Nh2 Qh1 Kf3 Qg1 Ng4 Qh2 Bf5 Qh3 Nh2 Qd2 Na6 Nc5 Qe3 Q6d5+ Kf4 Kh6 Rh1 Q2d3 Bd2 Bb3 Rhd1 Ba2 Be1 Q3b3 Rc3 Q3c2 Rd2 Qe6 Rdd8 Qd6+ Qe5 Nd3+ Ke3 Bd5 Rcc8 Ba2 Bd7 Qhe6 Kf3 Nh5 Nc5 Nhf4 Qg7+ Kh5 Qd4 Qe3+
2K3kB/N1B4r/bq6/2Pr1r1R/NN1qr3/5P2/p2pnRN1/3QbBqQ w - - 0 1 legal: proof: d4 f5 a4 g5 d5 b5 axb5 f4 d6 f3 exf3 cxd6 Ne2 d5 Ng1 d4 h4 g4 h5 g3 Kd2 gxf2 g4 Nc6 g5 Ne5 Be2 Rb8 Bf1 Ng6 hxg6 Ra8 Kd3 d5 b4 e5 c4 h5 b6 a5 g7 Kf7 b5 h4 b7 h3 b8Q a4 b6 h2 b7 a3 Nc3 a2 Na4 Ra5 Bb2 Rh7 Ne2 Qb6 Nf4 Nh6 g8N Nf5 Ng2 Bb4 Nf6 Be1 g6+ Kf8 Qc7 Ng3 b8B Ne2 Qb7 Rh5 Bc7 Rf5 g7+ Kf7 Qb8 Ba6 g8N Rb5 Ne7 e4+ Kc2 e3 Kd3 Ra5 Nc8 Kf8 Na7+ Kf7 Rg1 h1R Qh8 Rh7 Rh1 Rb5 Rh5 Ra5 Ne4 Rc5 Nec3 Ra5 Qf6+ Kg8 Qh4 Rc5 Qh1 Rb5 Nc6 Ra5 Nb4 Rb5 Kc2 d3+ Kb3 d2 Rb1 Rc5 Nb5 d4 Na7 d3 Bh8 Rb5 Rb2 Rbd5 Qc2 d1Q c5 Qb1 Qd1 Qa1 Rc2 Qd4 Nc3 Nf4 Ka4 e2 Rb2 Bd2 Rc2 e1R Rb2 Re4 Rc2 Qd6 Ka5 Ne2 Na4 Qd8 Kb6 Be1 Rc1 d2 Kc6 Bc4 Kb7 Qd6 Rb1 Qb6+ Kc8 Nf4 Bd3 f1Q Rc1 Qfg1 Bf1 Bb5 Qe2 Bg3 Re1 Bh4 Qd1 Bc4 Re3 Be1 Re2 Bd3 Rf2 Ne2 Bd8 Bb5 Bc7 Ba6+
1Q4rn/Br1k1rB1/N2Nb3/2p2rpR/K3Q3/3n2qP/NP1BR3/4n1qB w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 g4 exf4 g5 a6 Ra2 Bc5 Ra1 Ba7 b6 h6 bxa7 hxg5 Qc2 g4 Qb3 Rh6 Qd1 Rh8 e4 f5 d4 c5 Kd2 g5 Kc3 g3 Kb3 g2 e5 f3 e6 f2 d6 f4 d7+ Ke7 d5 f3 d6+ Kf8 e7+ Kf7 e8N Ke6 Bd2 a5 Nh3 g1Q Ka4 Ne7 Qc2 Ng6 Bg2 f1R Nc3 f2 Na2 Qe7 d8B Nc6 d7 Rg8 Qe4+ Nce5 Nd6 Nh8 Bb6 Rb8 a8Q Rb7 d8B Kd7 Qb8 Nd3 Ba7 Qe5 Re1 Qf4 Re2 Qg3 Ka3 a4 Nf4 Rb1 Bc7 f1R Nd5 Rf5 Ndb4 Rbf1 Bd8 Rf7 Bf6 Rf5 Be5 Ke7 Bg7+ Be6 Na6 Kd7 h3 Qa1 Rc1 Qb1 Rc4 Qg1 N2b4 Re7 Bh1 Ref7 Ka2 a3 Kb3 a2 Ka4 a1N Na2 Nc2 Rb4 Qa1 Rb6 Nce1 Rc6 Bc4 Rc8 Qb1 Re8 Qc1 Re6 Qa1 Rh6 Be6 Rh5 Qc1 Bb4 Qce3 Bd2 Qeg1
B3r1k1/1r2B3/2r1q3/BpQq1p2/4QbnR/N2B3N/P1K1P1br/R1b2N2 w - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e6 b4 axb4 f5 exf5 g3 Ra6 g4 Ra8 h4 f6 g5 Nd7 Qb3 Ne5 Qd1 Nf7 gxf6 g5 Rh3 g4 Rh1 Ng5 hxg5 Ra7 Ba3 Ra4 Bc1 Ra8 d4 Kf7 Kd2 c5 d6 h5 d7 c4 d5 b3 d6 b2 Kc2 c3 Bg2 h4 Nd2 b1R Nf1 g3 Qd4 h3 Bd2 h2 Nh3 Bh6 Qe4 Qe7 d8B Qe6 d7 b5 Bf3 g2 Be7 g1R d8Q Rh7 Qdd5 Bb7 Qc5 Rg2 Be1 Re8 Bd2 Kg6 f7 Kg7 f8N Nf6 g6 Kg8 g7 Ng4 Nd7 Bf4 Ne5 Ba8 Nc4 Rc1+ Kb3 c2 Ba5 Qc8 Na3 Qe6+ Qec4 Bb7 Be4 Rf2 Bd3 Bg2 Kb2 Rd1 Qe4 c1B+ Kc2 Rh6 Bc4 Rd7 Bd3 Rb7 Rg1 Kh7 g8B+ Kg7 Bf7 h1Q Bh5 Bf3 Rg2 Kg8 Rh2 Bg2 Kc3 Qc8 Kc2 Rc6 Bf7+ Kh8 Bd5 Qe6 Ng1+ Kg8 Rh4 Bf3 Nh3 Rh2 B5c4 Qf7 Be6 Bg2 Bd7 Qe6 Bc8 Rd7 Bb7 Rdc7 Ba8 Rd7 Rh6 Rb7 Rh4 Bf3 Qd4 Bd5 Qdc4 Qhe4 Q4b4 Qd4 Qbc4 Bg2 Q4b4 Qde5 Qe4 Q5d5
q2B3q/B2Q1r2/n2B2rp/rR1qb2N/2P1k1p1/1r1NB2P/4K2N/R3Q2b w - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 f5 axb5 d5 e4 fxe4 g4 Nh6 f4 Na6 f5 Ng8 Kf2 Nb4 Bd3 d4 Be2 Nd5 g5 Ndf6 gxf6 d3 Qf1 dxe2 Qe1 Kd7 Qd1 Ke8 c4 Kd7 d4 e1R f7 e5 b6 a5 b7 g5 b8Q g4 h3 h6 f6 Ke6 d5+ Kf5 d6 e3+ Kg3 e2 Kf2 a4 c6 e4 d7 a3 c7 a2 Nc3 Ra5 Nd5 Bd6 f8B Ne7 f7 Be5 Qb7 Nc6 Bc5 Rf8 Ba7 Nb8 Nb4 Na6 Nf3 Qe8 Qc6 Bb7 Nh2 Qa8 c8N Rg1 d8B e1R Qe2 Rg3 Nb6 Rb3 Nd3 Rg8 f8B Rg6 Ke3 Rf1 Qe1 Rf4 Ke2 e3 Qe6+ Ke4 Nd7 Rf7 Bd6 Bc6 Rb1 a1Q Qe7 Qd4 Bd2 Qd5 Nf6+ Kf5 Nh5 Ke4 Bc1 Bb7 Qd7 Bc6 Kd1 e2+ Kd2 Rc3 Rb5 Rb3 Bca3 Bb7 B3c5 Bc6 Be3 Bb7 Qf2 Bc6 Ra1 e1Q+ Kc2 Qf1 Qe1 Qf6 Kd1 Qh8 Ke2 Qd4 Qe8 Kf5 Nhf4 Bh1 Nh5 Qdd5 Qd7+ Ke4
R1N1q2k/1bQ3r1/nBp3R1/3n1P1n/3nBNqq/5PrN/2pQK3/B3N3 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 exf5 dxc4 h4 gxh4 b4 a5 Qf3 a4 Qb3 Bg7 Qd1 Bd4 Ra3 Bb6 Ra1 Ba5 bxa5 Qd7 Nc3 Qd4 Nb1 Qd8 d4 Kf8 g4 Kg7 f3 h5 g5 e5 g6 h3 a6 c6 b6 c3 b7 h2 d5 e4 a7 e3 d6 a3 d7 h4 Qc2 h3 Ke2 a2 Bb2 Na6 b8Q Qe8 d8B Rh7 Qd2 Kh8 Na3 Ne7 Nc2 Nd5 Qc7 Rg7 Ne1 c2 Bd4 Rb8 a8N Bb7 Nb6 Qe4 B8f6 Rg8 Nc8 Qf4 Bb6 Qg4 Rd1 a1N Rc1 Nb3 Ra1 Nb8 Ra8 Na6 Ba1 Nd4+ Kd3 Rd7 g7+ Kh7 Ne7 e2 Ng6 Rf7 Nf4 Rd7 Neg2 e1Q Be2 Qeh4 Ne1 Qd8 Bf1 Qe8 Be2 Rf8 g8N Kh8 Bf1 Rg7 Ne7 Rf6 Nc8 Rfg6 Nge2 Rg5 Rg1 h1N Rg3 h2 Ng1 R5g6 Ngh3 Rg5 Rg2 Ng3 Rg1 h1Q Be2 Ne7 Ke3 R5g6 Bd3 Nh5 Be4 Nd5+ Kf2 Qh2+ Rg2 Qhg3+ Kf1 Q3h4 Rg3 Nb3 Ke2 Nd4+ Kf2 Qgg5 Kf1 Re6 Bd3 Re2 Be4 Rg2 Rg4 Rg3 Kf2 Qf6 Rg6 Qfg5 Kf1 Qgg4 Kf2 Nb5 Ke2 Nd4+
k3q3/1q4rQ/rpB3q1/1R2P1QN/3n1NqK/5pQ1/nrQbR1P1/4B1R1 w - - 0 1 legal: proof: b4 d5 h4 e5 f4 exf4 c4 g5 hxg5 b6 cxd5 Na6 b5 Nb8 a4 Bf5 a5 Bc8 a6 Bb7 axb7 a6 Ra5 axb5 Ra1 b4 Kf2 Kd7 e4 h5 d4 c5 g6 Kc7 e5 f5 g7 h4 Ra6 h3 Be3 h2 Nd2 c4 Nb3 f3 Kg3 f4+ Kg4 f2 Ra2 f3 Ne2 c3 Nd2 b3 Ne4 b2 Nf6 b1Q Nh5 c2 Nef4 c1R Rg1 h1Q Bd2 Ra6 Bb5 f1Q Qc2+ Nc6 d6+ Kb8 d5 Nd4 d7 Qe8 d6 Ne7 g8Q Rh7 Be1 Qc4 Bc6 Bh6 d8Q+ Ka7 b8R Nd5 d7 Nb4 Rc8 Rg7+ Qg5 Qh2 Ra5 Na2 d8Q Qcb4 Qch7 Qbg6 Rb5 Rc2 Qc4 Rb2 Qc2 Qh1 Qd5 Qbe7 Qdg8 Qb7 Rc7 Ka8 Rd7 Nf5 Rd2 Nd4 Re2 Qh2 Rh1 Qg1 Kh4 Qe3 Rg1 Qee4 Qg3 Qef5 Nh3 Bd2 N3f4 Rd7 Qgg7 Qfe6 Qf6 Rg7 Qfg5 Qg4+
BN1bKn1n/3N2PR/1nb1q2r/1B2qQn1/2bR4/1pp5/N4P2/BQ3B1k w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 h4 c5 d4 g5 Bc4 gxh4 Qg4 b5 Bf1 c4 Qd1 Ra7 Ke2 Rc7 Ke1 Rc5 dxc5 Qd6 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Kf3 e5 Kg4 h5+ Kf3 h3 Ke4 b3 a4 c3 g4 h4 f6 h2 Kf5 h3 Kg6 e4 Kf7 b2 a5 e3 c6+ Kd6 g5 Ke5 c7 Ke4 a6 e2 d6 e1N g6 b4 d7 b3 g7 Nf3 a7 Ne7 Na3 b1N Nc4 Ng6 Ra2 Rh6 Ne5 Be7 Ne2 Na3 Bb2 Nc4 Ra4 Ba6 c8B Qa5 d8N Nd7 Ndc6 Ng5+ Ke8 Nh8 a8B Nf8 Nd7 Kf3 f7 Nb6 Ba1 Qe5 Rd4 Bc4 Ba6 Qe6 Bb5 Qe5 Rg1 h1Q Qb1 h2 Nc1 Qg2 Rh1 Qh3 Na2 Qhe6 Rg1 h1B Ncb8+ Nd5 Rgg4 Bg2 Rh4 Bh1 Bd3 Kg2 Bf1+ Kg1 Rh3 Nb6 Rh5 Bc6 Rhh4 Rg6 Rh7 Rf6 Qe1 Rh6 Qb1 Nfg6 f8Q Kh1 Qf7 Nf8 Qff5 Bd8+
8/qRB2kp1/1q1nRn2/2BrK1QP/1rB1PQB1/2N4p/3Q1q2/qn3N1b w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 g3 h5 Qd2 h4 Qd3 h3 Qd1 Be7 Kf2 Bh4 gxh4 Qf6+ Ke1 Qf2+ Kd2 Qf4+ Ke1 Qxh2 Kd2 a5 Kd3 d5 c4 f5 b4 a4 e4 a3 b6 a2 c5 f4 c6 f3 e6 f2 b7 Na6 b8Q Rh6 e7 Kf7 c7 Rh5 b5 Qd6 b6 Nf6 b7 Bg4 c8B Qb6 Ne2 Nc7 Ba3 Nce8 Nd2 Nd6 Bc5 Bf3 Nc3 Ra4 Bg4 Rb4 Rh2 Rf5 h5 Bh1 Rb1 a1Q Rg2 Qba7 Qd8 Q1a5 b8B Q5b6 Bc7 Re5 Bfe2 f1Q Rg3 Qf4 Nf1 Qf2 Qd2 Rg5 Bc8 Rf5 Rg6 Rg5 Bcg4 Re5 Qg5 Rf5 Kd2 d3 Qf4 d4 Rb3 Nd5 Re6 Nf6 Qg5 Nb7 Qd6 Rd5 Qdf4 Nd6 Ra3 Qab7 Ra7 Qb8 Rb7 Q8a7 Kd1 d2 Kc2 d1N Kd2 Ne3 Kd3 Nc2 Qd2 Na3 Qgf4 Nb1 Qg5 Kg8 e8Q+ Kh7 Qeg6+ Kg8 Q6f5 Kf7 Qff4 Qc6 Bd1 Qcb6 Bb3 Qh4 Ke2 d3+ Ke3 Qg3+ Bf3 Qh2 Bc4 Qg2 Bg4 Qh2 Qdf2 d2 Qg2 d1Q Qd2 Rf5 Kd4 Qf2+ Qe3 Qda4 Qf4 Qa1 Qg5 Rf3 Ke5 Rg3 Qef4 Rd3 Qh4 Rd4 Qhg5 Rd5+
N5Qn/2R1b1pP/1KNP1p2/Q1q5/Q3q3/q2b1k1B/qQ1B4/Rnb3Br w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 f4 e5 a4 d5 cxd5 b5 axb5 exf4 Bb2 a4 Bc1 Ra5 bxa5 Qd7 Bb2 Qe7 Bc1 Qd8 Kf2 Ke7 h4 Kd6 d4 c5 e4 f3 Ke3 f2 b6 g3 h5 a3 e5+ Ke7 e6 Kd6 h6 a2 h7 f6 b7 g2 a6 c4 a7 c3 a8Q c2 e7 Bg4 e8Q Be7 Bd2 c1B Qa5 Bf5 Nf3 g1Q Nc3 Nd7 Ne5 Nb6 Na4 Nh6 Nc6 Nf7 Bh3 Bd3 Qg8 Qf8 Rh2 f1Q+ Rf2 Na8 b8Q+ Nc7 Qb2 Qfg2 Nb6 Nb5 Qda4 Na3 Na8 Q1h2 Rf3 Nb1 Rg3 Qb8 Rg5 Qb4 Re5 Qc5 Re6+ Kd7 d6 Qg6 Re4+ Qg4 Rf4 Ke6 d7 Kd5 d8B Qh4 Bb6 Qg2 Qb8 Rd8 Ba7 Rd6 Qg8 Re6+ Re4 Re5 Bb6 Rf5 Ba7 Rf1 Re6 Rh1 Re4 Bd8 Re7 Qhg4 Rc7 Be7 Qe8 Nh8 Bb6 Ke6 Qg8+ Kf5 Ba7 Qgd5 Bb6 Qa3 Ba7 Qb5 d5 Kg5 Bd4 Qbc5 d6 Kh4 Qa7 Kg3 Q7a5 Qc2 Ba7 Qg5+ Kd4 Kf3 Bb6 Qg6 Kd5 Qe8 Bg1 Qcc5+ Ke6 Qg6 Kd7 Qe4 Kc8 Nf7 Kb8 Nh8 Kb7 Nc3 Rb1 a1Q Qd5 Kg3 Qg8 Q1a2 Ra1 Kf3 Qab3 Qh5 Kb6 Nb1 Qba4 Qhc5+
B1kqr1r1/2rn1P1N/1b3n1N/p3BB2/1B2K3/2P1Q3/rRp1q1R1/Qn3R2 w - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 a4 b5 axb5 Bh6 h4 gxh4 b6 Bg7 b7 Bf8 b5 c5 Ra2 d6 Ra1 Qa5 Na3 Bd7 Nb1 Qc3 b6 Bb5 cxb5 c4 Ne2 Qd4 Ng1 c3 Qg4 c2 Qd1 Qc3 dxc3 Kd7 Ke2 Kd8 Ke1 Ke8 Ke2 Kd7 Ke3 h5 g4 e5 f4 a5 g5 h3 g6 d5 g7 h4 f5 h2 f6 h3 f7 Nf6 g8B Ra7 Bh7 Rg8 Ne2 Bc5+ Nd4 Re8 Rg1 h1R Qe2 h2 Rg2 Rg1 Ba3 h1R Nd2 Kd8 Bf5 Nbd7 b8B Kc8 Bd6 Rc7 Bb4 Rhh8 Rc1 Rhg8 Nf3 Rh1 Ng5 Rh4 Kd2 e3+ Kd3 Rh1 Qe1 e2 Nh7 e4+ Ke3 Rh4 Be5 Rhg4 Qf2 e1N Be2 Nf3 Rf1 Nd2 Bf3 Nb1 b7+ Kb8 Qe1 Bb6 Qc1 Rh4 Qa3 Rh1 Qa1 Rg1 Kf4 e3 B3e4 e2 Bf3 Ka7 b8R e1Q B3e4 Qe2 Bf3 Bc5 b6+ Ka6 b7 Bb6 Be6 Rh1 Nf5 d4 Nh6 d3 Bf5 d2 Rc8 d1Q b8Q Qdd3 Ba8 Qd6 Rd8 Qe7 Rc8 Qd8 Qa7+ Kb5 Rb8 Rg1 Rb7 Kc6 Rb8+ Rb7 Qa3 Bd4 Rff2 Nd2 Bf8 Ra1 Rf1 Nb1 Qb2 Ra2 Qa1 Bf2 Qd4 Bg1 Qd2 Bd4 Qe3 Kb6 Be7 Ka6 Ba3 Rc7 Rb2 Bb6 Bb4 Ka7 Rgg1 Kb8 Rg2 Qd2 Kf3 Kc8 Kf4 Qe1 Kf3 Qe2+ Kf4 Nd5+ Ke4 Nf6+
1QNQr3/R3Qp1P/2qKB1Q1/N7/1brP1rb1/BR1q1p2/2r3q1/nN4k1 w - - 0 1 illegal: No possible last move
1B1q1nR1/Bb1p2R1/1pB3N1/NQNqbnn1/1P1Q2K1/1nP4b/6k1/N1r5 w - - 0 1 illegal: No possible last move
6bB/2P5/1K2pq1P/1b2qpk1/1r1r1qBq/1bNQ1RN1/3Q1N2/N3BR1n w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 cxd4 e3 hxg4 Ke2 d3+ Ke1 d2+ Ke2 Rh6 Ra6 Rh4 Ra1 Rh8 f4 d5 f5 d4 f6 d3+ Kf2 e6 Qf3 Kd7 Qd1 Be7 fxe7 Nc6 Na3 Nf6 Nb1 Nd4 exd4 Ng8 Ke3 f5 e8N Ke7 b4 g5 h4 a5 c4 a4 d5 a3 Kd4 g3 Kc5 g4 d6+ Kf7 d7 Kg6 b6 a2 b7 g2 b8B g3 h5+ Kh6 b5 Bb7 b6 Ra7 Ne2 Ra6 Nd6 Ra4 Rh3 Nf6 Ne4 g1Q+ Nf2 g2 Nbc3 Qh1 Bg3 g1Q Bb2 Bc6 b7 Rb4 b8N Kg5 h6 Bb5 Nc6 Nh5 Ncd4 Qgh2 Nc2 Qf6 Kb6 Rd8 c5 Qe5 Rb1 a1Q c6 Qf3 c7 Qff4 Qe1 d1B Qd2 Qf6 Bg2 Qa4 Na1 Bb3 Rf1 Qa5+ Kb7 Qh1 Bf3 Qh2 Qd1 d2 Bg4 Qa4 Qc2 d1B Kb6 Q4e5 Qd3 Qh1 Bh2 Ng3 Bg1 Qf3 Bh2 Nh1 Ng3 Qff4 Bg1 Rc8 d8Q Ra8 Q8d6 Rd8 Qd2 Rd7 Q6d3 Rdd4 Nd5 Rdc4 Ne2 Qg7 Bh5 Qee3+ Nd4 Qh4 Ng4 Qf4 Bf2 Qa3 Be1 Qa8 Nf2 Qd8 Ne2 Re4 Be5 Red4 Ndc3 Qgh8 Re3 Qd5 Bg7 Qde5 Ng3 Qd8 Bh8 Qdf6 Qb2 Bf3 Qbd2 Bfc6 Bg4 Be8 Rf3 Bf7 Qe4 Bg8 Qee3 Bc2 Qed3 Bb3
1k2nqnr/1P2Qn2/1rQr4/3n1R2/1B2pN1P/7Q/bR2pRB1/1NK1qQ2 w - - 0 1 illegal: No possible last move
2q1nB2/P2q1N2/1N1RrPn1/1KQ5/5nBN/q2Qp1k1/3B3p/nR1b1Bb1 w - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 c4 g5 fxg5 f4 g6 d5 cxd5 Ra6 b4 axb4 g5 Rf6 h4 Rf7 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kd3 Kd6 a4 Ke5 f6 c5 g7 h5 g6 f3 a5 Kf4 a6 e5 d6 f2 a7 h4 d7 h3 Ra5 b3 Nf3 h2 Qe2 e4+ Kc3 b2 d4+ Kg3 d5 b4+ Kc4 b3 d6 Ne7 g8Q Na6 g7 Ng6 Qd5 Nc7 g8B Ne8 Bg2 f1N Qf7 Ne3+ Kb5 c4 Nh4 c3 Ra2 c2 Ra1 Nd5 Nd2 b1Q Nc4 b2 Qe7 Qa2 Nb6 b1N Bf1 Ndf4 Be6 Nd2 Bg4 Qa3 Rb1 Nb3 Bd2 c1Q Qe5 Qcc7 Qc5 Na1 Qec4 Qe7 d8B Be6 d7 Qc8 Q4d4 Bb3 Qdd5 Qf7 Be7 Bd1 d8N Bh6 Bf8 Qfd7+ Qdc6 Bg5 Nf7 Rh5 Qd6 Bh6+ Qc5 Re5 Qd5 Re6 Rg1+ Ng2 Qd3+ Be3 Rh1 Qdd8 Qc5 N2f4 Rb4 Qd6 Rd4 Qdc7 Rd6 Q7d8 Qb1 Bg1 Qd3+ e3 Bg2 Bf2 Re1 Bg1 Bf1 Bf3 Rc1 Bd1 Rb1 Qdd7+
2Nr4/1n2nQ2/p1R2P1n/Q3bPBN/1QB1R3/3p1rrQ/2b4r/1rK2B1k w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 h4 gxh4 a4 d5 axb5 a6 b6 Qd7 b5 c5 d4 Qa7 bxa7 cxd4 b6 d3 b7 Kd8 Qe2 Kd7 Qd1 Ke8 Kd2 Kd7 c4 Kc6 g4 e5 f4 h5 g5 e4 g6 e3+ Kc3 h3 Kb2 h4 c5 d2 f6 h2 g7 d4 Nc3 h3 Bc4 e2 Nd5 e1N Nb6 Bd6 Qe2 d1R Qg4 Bf5 Qh5 Rd3 Ne2 Be5 Ng3 Rf3 Nc8 Bc2 Ra4 Nh6 g8Q Rh7 f5 Rg7 Bg5 Rg6 Rg1 h1R Kc1 h2 Qf7 Rg8 Qh3 Nd3+ Kd2 Rg7 Nh5 Rg6 Rg4 Rb1 Re4 h1R Ra3 Rg7 Rc3 Rg6 Bf4 Rgg3 Bg5 Nf4 Bf1 Nd7 b8Q d3 Qb4 Nd5 Rcc4 Rb8 Rc3 Ne7 a8Q+ Rb7 Qa7 Rb8 Qa2 Ra8 Qaa5 Kd5 c6+ Nc5 c7 Rh2+ Re2 Rb2 Kc1 Rb8 Re4 Rb3 Nd6 Rd8 c8B Rb2 Bd7 Rb3 Bb5 Nb7 Nc8 Rb2 Rec4 Rb3 Rc6 Rb2 Bc4+ Ke4 Qb8 Rb3 Q8d6 Rb2 Qe6 Rb3 Qf7 Rb2 Bh4 Ke3 Ra3 Kf2 Bg5 Kg1 Rb3 Kh1 Rc3 Bd1 Rc2 Rb3 Re2 Bc2 Re4 Rb1+
2K1R1Q1/4r1bR/b1B1N3/p2n1B1Q/2k5/2P1b1Np/q2Rbn1P/2nn1QQ1 w - - 0 1 legal: proof: f4 e5 b4 c5 a4 d5 bxc5 b5 axb5 d4 e3 dxe3 f5 g5 Ba3 a5 Bb2 e4 Be5 Ra6 Bf4 Re6 fxe6 gxf4 Ke2 Ke7 d4 f5 g4 h5 g5 h4 g6 h3 b6 Rh4 c3 Bd7 d5 Nf6 c6 Kd6 b7 Kc5 d6 Ne8 e7 Nc7 e8R Qf6 g7 Bc8 d7 Rh7 d8Q Nba6 g8Q Qe6 Q8d3 Qa2+ Nd2 Nb4 Qg3 Rd7 Bg2 Rh7 Q3b1 Nd3 Nf3 Rg7 Rg1 Re7 Ng5 f3+ Kf1 f4 Ne6+ Kd5 Bh1 f2 Ke2 f1N Qh4 Ne5 Rg7 Ng4 Rh7 Nf2 Qg3 Bh6 Qg1 Bf8 Qbc1 Bh6 Rb1 Bf8 Rb2 Bh6 Nb3+ Kc4 Nbc5 Bf8 Rd2 Bh6 b8Q Ba6 Qb7 Bf8 Qg8 Bh6 Qbb1 Bg7 Ke1 e2 Qa1 Na8 c7 Ne3 Bf3 Nb6 Bg2 f3 Bh1 Nfg4 Bg2 Nf6 Kf2 e1N Kg3 f2 Kf4 f1B Ke5 Nd3+ Kd6 Nfg4 Qf3 Ngf2 Qh5 Be2 Qg1 Qa3 Bh1 Qa2 Qaf1 Ned1 Bg2 Nc1 Bf3 e3 Ne4 Bd3 Ng3 e2 Bc6 Nd5 c8B e1B Nc5 Nh1 Bf5 Bf2 Ne6 Be3 Ng5 Re4 Kd7 Nhf2 Kd8 Re7 Ne6 Bb5 Kc8 Be2 Ba8 Ba6+ Bb7 Bb5 Bc6 Ba6+
3bb3/1QB2npR/1rN1rP1Q/Q1B1b2Q/1R1Np1P1/r2k2b1/2N4n/2K4r w - - 0 1 legal: proof: b4 b5 a4 f5 e4 fxe4 c4 h5 g3 d5 cxd5 h4 Bg2 a5 Nc3 h3 Nb1 hxg2 axb5 a4 Qg4 Qd6 Qf3 Qa6 Qd1 Qa5 bxa5 Ra7 Nc3 Ra6 Nb1 Ra8 d4 Kd7 Kd2 Kd6 f4 e5 h4 c5 h5 a3 f5 c4 f6 a2 a6 Bg4 b6 Bf3 b7 Be7 a7 Rh6 Na3 Bd8 Nc2 Nd7 Ne2 g1R b8N Re1 Rb1 a1B Nc6 Rb8 a8Q Rb6 Bb2 e3+ Kc1 c3 Qb7 e4 Rh4 Ne5 Rh1 Rh7 h6 Bh5 g4 Rh8 h7 Be8 Rh5 Rh1 Ba3+ Rb4 Rb3 Nh6 Rb2 Rh3 Qd2 Nf3 Rb1 Rg8 h8Q Nf7 Rh7 Nh2 Rb2 Bd7 Rb3 Re8 Rb1 Re6 Qe8 Nh8 Qh5 Nf7 Rb3 Be8 Rb1 Bb6 Rb2 Bc5 Rb1 Rb6 Rb4 Rf3 Ng3 e2 Qdh6 e1B Ne2 Bh4 Qb8+ Kd7 d6 Bg3 d5 Re3 Ned4 Rd3 Rc4 Bb4 Qa8 Ba5 Bc5 Re3 Rb4 Rf3 Ne1 c2 Qa6 Ra3 Qb5 Kc8 d7+ Kb7 d8B Bc3 d6 Ba1 Qa4 Ka6 d7 Bc3 Qb3 Bb2+ Kd2 c1R Nec2 Rh1 Bc7 Ba1 d8Q Bb2 Ne2 Bbe5 Ned4 Rb5 Bb8 Bb6 Qdd5 Bd8 Bc7 Rb6 Qb1 Rd6 Qe1 Re6 Kc1 Rc3 Rb3 Be7 Na7 Bd8 Qb7+ Ka5 Rb2 Ka4 Nac6 Ra3 Nb3 Kb5 Nbd4+ Kc4 Rb1 Nf1 Qa5 Kd3 Rb4 Nh2+
5n1Q/4Qp1p/1b3RqB/5Q2/N1k2Kqq/PnnN1P2/Bn2BQ1R/n5r1 w - - 0 1 illegal: No possible last move, all moves rejected
2Bb1q2/QB1K3p/Q1N1rk1r/2B4b/QRr3r1/5pP1/P4Nr1/2RB1q1q w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 Kd2 cxd4 Ke1 e5 fxe5 f4 Nh3 g5 Bb2 Nc6 Bc3 Nf6 Kf2 Ne4+ Ke1 Ne7 Bb2 Ng3 Bc1 Nef5 gxf5 g4 Ng1 Nh5 Bd2 g3 Be3 g2 Bc1 Ng3 hxg3 Qf6 Rh2 Qe7 Rh1 Qd8 Kd2 Ke7 Kd3 d5 e4 b5 c4 b3 e6 b4 c5 b2 e5 b3 c6 f3 f6+ Ke8 e7 Kf7 e8Q+ Kg8 c7 Bd7 c8B Rb8 e6 Rb4 e7 Bg4 f7+ Kg7 Be2 Rg8 Qd7 Bh5 e8B Kf6 Na3 b1Q+ Nc2 b2 Be3 Rg4 Rh4 Rc4 Nh3 g1R Nf2 Be7 Qa7 Rg2 Bc6 Qf8 B6b7 Bd8 Qf1 Qe1 Nb4 b1R Nc6 Rb6 Bd1 Ra6 Qe2 Qh1 Rc1 Rb6 Qc2 Ra6 Qa4 Rb6 Kd2 d3 Bc5 Ra6 Ke3 d2 Kd3 Rb6 Q4a6 d4 Qa4 Rg7 Ke4 d3+ Kd5 Rgg4 Nd4 Re6 Nc6 Re7 Kd6 Re6+ Kd7 Qf1 Bc2 d1R Q7a6 Rde1 Bd1 d2 Qa7 Kf5 Q7a6 Rh6 Qa7 Ree6 Q4a6 Qg8 f8Q+ Kg5 Qd6 Kf6 Qd3 Qf8 Qda3 Rgg6 Rd4 Rg4 Q3a4 Qh1 Bb3 d1Q Bc2 Qdg1 Bd1 Qf1 Re4 Rc2 Rb4 Rcc4
1R2QRb1/p1b3P1/R4B2/p1nN1RNq/q1nK2B1/3nn1Q1/n1q2B1P/2k5 w - - 0 1 legal: proof: c4 h5 e4 d5 cxd5 Kd7 a4 b6 g4 hxg4 d4 Rh4 d6 Rh8 a5 Kc6 d7 bxa5 f4 Kd6 d5 g5 Bh3 g3 Be3 g4 Bc1 Na6 Bg2 Rh5 Bf1 Rg5 fxg5 Ke5 Ra2 Rb8 Ra1 Rb5 d6 Rd5 exd5 Kf5 Be2 Kg6 Bb5 Nh6 Bf1 Ng8 Ke2 Kf5 Kd3 c5 b4 e5 g6 c4+ Kc3 Ke4 b5 f5 g7 f4 b6 f3 b7 g2 b8Q g3 Bb2 Ke3 Qc7 f2 Qc6 e4 Bd3 f1N Nd2 Nf6 Ra3 Qc7 d8B Ng4 d7 Ne5 d6 Nc5 Nh3 g1Q Bh4 g2 d8R Be6 d7 Bd6 Be2 Bg8 Nf4 Qf2 Qb1 g1Q Bg4 Qf3 Rb8 Qgg2 d8R Qd7 Be1 Bc7 Rg1 Qge2 Qg6 Qa4 Qe8 Qh3 Qa2 Qh5 Nf3 Qg2 Nd5+ Ke2 Rd7 Kd1 Bf2 e3 Ng5+ e2 Kd4 c3+ Qc4 c2 Rdd8 c1N Rf3 e1N Rf5+ Kd2 Rd6 Na2 Ra6 Ne3 Rf1 N1d3 Ba1 Ndb4 Qb3 N5c4 Rf8 Nd1 Qg3 Kc1 Re1 Nbd3 Re5 Nde3 Ref5 Qa3 Bc3 Qa4 Bg1 Qd2 Bf2 Ne6+ Ke4 Qdc2 Bf6 Nec5+ Kd4 Be6 Qd8 Bf7 Qe8 Bg8
1N4Kn/Q1Pp1nRb/1nQ1n1B1/4BR2/2r1n2N/p7/1n1P2n1/1kb1N1NB w - - 0 1 illegal: No possible last move
RR5q/2QQ1q2/b2r4/3brbB1/2BP2RP/1Kb1p3/N3BpNq/Br5k w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 cxd4 e3 hxg4 Ke2 d3+ Ke1 d2+ Ke2 Rh6 Ra6 Rh4 Ra1 Rh8 Nc3 e5 Nb1 d5 Ra2 d4 Ra1 Nf6 f3 d3+ Kf2 Nc6 f4 Nd4 exd4 e4 Ra3 Nd7 Ra1 Ne5 fxe5 Ke7 Nc3 Kd7 Nb1 Ke8 Ke3 Ke7 c4 Ke6 h4 Kf5 b4 g5 b6 a5 b7 g3 b8Q g2 e6 a4 e7 a3 e8B a2 c5 g4 b5 g3 b6 Ba6 c6 Bb4 b7 Rh6 c7 Rd6 c8R Bc3 Qe2 d1B Rc4 d2 Qd3 Kg4 Rc8 f5 Bb5 Bc2 Nh3 g1R Bc4 d1B Bb2 g2 Qc7 Kg3 b8B Qh8 Nf4 Bf3 Be2 Rc1 Rg1 Kh2 Qd7 Re1 Bc7 Rb8 Bd8 Rb5 Bg5 Re5 Rb8 Rd1 Rf1 g1Q+ Rf2+ Kh1 Ng2 Re1 Qd2 Qh2 Qc1 Bb3 Qc2 Bg4 Rf4 Bh3 Rg4 f4+ Kf2 f3 Ke3 f2 Qc1 Ba5 Nc3 Rg1 Kd2 e3+ Kd3 Bb4 Rb1 a1Q Ra8 Qa3 Na2 Bc3 Ba1 Qc5 Rb2 Qd5 Qc2 Rb1 Qc1+ Bd1 Rbb8 Qf7 Qc2 Bd2 Qc3 Bb3 Qa5 Bc3 Qad8 Ba4 Q8c7 Bc6 Kc2 Bd5 Re8 Re1 Reb8 Rf1 Kb3 Rg1 Rf4 Bf5 Rg4 Rb1+
1B2q3/NR2B1r1/1r1rK2N/nP6/1pB3p1/Q2q1Q2/N1Pk1n1r/Rnq2B2 w - - 0 1 illegal: No possible last move, all moves rejected
2nb4/b1k3B1/pR6/1bn3pq/P1N1nb2/1NqR2Qq/R1B2P2/3NQN1K w - - 0 1 illegal: No possible last move, all moves rejected
1rB3N1/5P1k/1np1rQ1N/3nQ3/1nn1pN1B/4qRr1/RnN2n1P/K2R4 w - - 0 1 legal: proof: e4 f5 g4 b5 c4 h5 a4 hxg4 axb5 d5 e5 dxc4 Bd3 g6 Be2 Rh6 Bf1 Rh8 f3 g3 Bd3 g5 Ra2 g2 Qa4 g4 Ra3 g3 Bf1 Bg7 Ra1 Bf6 exf6 Bb7 Qc2 Bd5 Qd1 Bf7 Ra6 Bh5 Ra1 Bg4 fxg4 Qd6 Nf3 Qd3 Ng1 Qd8 b4 Kf8 d4 e5 Kd2 a5 Kc3 a4 Kb2 c6 b6 e4 g5 f4 b5 f3 b7 f2 g6 Nd7 b8R Rh6 b6 Ne7 b7 Kg8 g7 Nd5 Nh3 g1R Na3 g2 Ra2 c3+ Ka1 c2 Nf4 Kh7 g8N Qb6 Rf8 Rb8 Ba6 f1N Qf3 Nfe3 Qf1 Nc4 Qf3 Nc3 d5 Qe3 d6 Ndb6 d7 Ncd5 d8N Rg6 Nf7 Rg3 Nb5 a3 Nd4 Rd1 Rf1 g1N Nfh6 Nh3 f7 Nf2 Rd8 Rd2 Bb2 c1N Nc2 Ncd3 Bf6 Ndb2 Bh4 Rd4 Rd6 Rd3 Rf6 Rg6 Rd1 Rb3 Rf5 Re6 Rf6 Qd2 Qc3 Qe3 Qe5 Rc3 Rf5 Rb3 Qf6 Ne7 Nd4 Rf8 b8Q Qd3 Nh5 Qf3 Kb1 Rd3 Qbe5 Rb8 Ra1 Ned5 Bc8 Qe2 Rf4 Rg3 Rf3 Qd2 Nf4 Qe3 Ra2 N2a4 Rad2 a2+ Kc1 a1N Kb1 Nc2 Ka2 Ncb4+ Ka1 Ne7 Ra2 Ned5 Nc2 Nab2
2r1R1N1/4p2r/2P1Qr2/1bpr3R/1Bk2rP1/bN3rR1/2BQ1n2/R3N1bK w - - 0 1 legal: proof: e4 c5 a4 f5 d4 fxe4 c4 g5 h4 gxh4 b4 b5 axb5 Ba6 b6 Bb7 d5 Nh6 b5 Bc8 b7 Nc6 dxc6 Ng8 b6 Qc7 Qe2 Qg3 Qd2 Qb3 Qd1 Qb5 cxb5 Bh6 Ra2 Bg7 Ra1 Bf8 b8N Kf7 f4 Ke6 Kf2 d5 g4 a5 Kg2 h5 b7 h3+ Kh2 h4 b6 e3 Bc4 e2 Bd2 e1R Bd3 d4 f5+ Kd5 f6 a4 f7 a3 Nf3 a2 Be4+ Kc4 Ng1 d3 Bh7 Ra4 Bg5 d2 Nc3 Rf1 Be4 Bh6 f8Q Rf3 Bc2 Nf6 Nd7 Ne4 b8R Ba6 b7 Bb5 Nce2 Nf2 Qf6 Rc8 Nc1 Bg7 Qe1 d1R Nb3 Rd5 Qfe6 Bb2 Nf6 Ba3 Ng8 Rf6 Bd2 Rf3 Rb1 a1B Bb4 Bd4 Ra1 Rf6 Nf3 Be3 Kg1 h2+ Kg2 Bd4 Rg1 h1R Qd2 Rh3 Ne1 Rhf3 Kh2 h3 Rg3 Be3 Ra8 Bd4 b8R Be3 Kg1 h2+ Kg2 Rc7 Rf8 h1R Rae8 Rc8 Rf7 Rh7 Rg7 Ra7 Rg5 Rd7 Rf5 Rd6 Rh5 R6f4 Qe5 Rdf6 Qe6 Nd1 Kh2 Bg1+ Kh1 Nf2+
B1K3Q1/3BBn1P/2Rb1B1p/4pqb1/2PkN1Qn/2RrpRb1/2r4N/4r3 w - - 0 1 legal: proof: e4 c5 d4 cxd4 g4 b5 a4 f5 axb5 fxe4 g5 d3 Kd2 e3+ Ke1 d2+ Ke2 Qc7 Bh3 Qb6 Bf1 Qd8 h3 Qb6 g6 h6 Ra3 Qe6 Ra5 Nf6 Ra6 Qg8 Ra1 Qh7 gxh7 Ng8 Na3 g5 Nc4 g4 Na3 g3 Nb1 Bb7 Ra5 Bd5 Ra6 Be6 Ra1 Bg4+ hxg4 Nc6 Ra4 Nb8 Ra3 Bg7 Ra1 Bf8 Kf3 Kf7 Ke4 Ke6 b4 a5 f4 g2 c4 d6 b6 a4 b7 a3 b5 a2 b6 Ra5 g5 Na6 b8Q Rb5 f5+ Kd7 b7 Kc6 f6 Kc5 Kf5 d5 Ke6 d4 Kd7 d3 f7 Nb4 g6 Nc6 g7 Kd4 Rh3 Nd8 Kc8 Rb2 Rf3 Rc2 Nc3 e6 Qe2 d1Q Ne4 Bd6 f8B d2 Be7 Nf7 Qa8 Qe1 b8R d1R Rb3 Qf2 Rc3 Re1 Bb2 Bg3 Rb1 a1B Qb8 Nf6+ g8B Ne8 Qa8 Ng7 Qb8 Nf5 Qa8 Nd8 Bf7 Bd6 Be8 Nh4 Bb5 Rg8 Bd7 Rg5 Qb8 Nf7 Qa8 Rd5 Qb8 Bc5 Qg3 Bd6 Qg8 Ke5 Rd1 Rd3 Rd2 Kd4 Qd1 Qg3 Rdf2 Qg7 Rf6 Qg3 Qdg4 Qf4 Rf3 Qf5 Be2 Bg3 Bd1 Rf2 B1a4 Rc2 Bac6 Bd6 Ba8 Bg3 Nh3 g1B Nhf2 B1h2 Qh3 Bd6 Ng4 Bhf4 Nh2 Bg5 Qg4 Bg3 Bba3 e5 Rc6 Bb2 Bf6 Bc1 Bb4 Ba3 Bbe7 Bd6
Nnq2RR1/N3K1p1/3n1r1k/2P2rpN/p2B3P/2b3rQ/bQNn1B2/7B w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 exf5 e5 f4 h6 fxe5 Qe7 g4 Qd8 g5 hxg5 Kf2 Kf7 Kg3 d5 Kg4 a5 b4 d3 h4 d2 c4 d4 b6 d3 b5 Bb4 b7 Nc6 b8Q Bd7 b6 Bd6 b7 Qf8 e6+ Kf6 e7 Ra7 e8N+ Kf7 Qb3 d1N Na3 d2 Nh3 Bc8 Nf4 Bd7 Nc7 Be5 Bb2 Be8 f6 Ra6 Kf5 Ra7 Na8 Nc3 Nh5 d1R Nc2 Rd4 Bg2 Rh6 Rhf1 Nb1 Bh1 Rd5 Bd4 Nd2 Qh3 a4 Rab1 Raa5 Bf2 Ba1+ Qe5 Rd3 b8N Bc3 Rb4 Na7 Nc6 Nb5 Na7 Rg3 Qd4 Bd7+ Ke5 Kg6 f7 Be8 Ke6 Nd6 Rb8 Nf6 Rd8 Qg8 Ke7 Nd7 f8B Nb8 Qb6 Bc6 Qb2 Bd5 Bb6 Nc6+ Kd7 Nb5 Bfc5 Nb8+ Ke7 Nd6 Rf6+ Kh7 Bf2 Be6 Rc8 Rf5 Bbd4 Bf7 c5 Ba2 Rd8 Rg6 Re8 Kh6 Rc8 Qb3 Rf7 Rgf6 Rg8 Qb5 Rff8 Qc6 Qb1 Qa6 Qb2 Qc8
1N2Q2n/r2P2p1/n1KB1k2/2n1qb1p/N3BN2/1r1RQ1RB/r4P1p/b1B5 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 f5 a4 fxg4 axb5 e5 d4 Qe7 dxe5 Qd8 h3 gxh3 Kd2 Kf7 Kc3 a5 Kd4 h5 b4 h2 e4 a4 d6 c5+ Kd5 a3 e6+ Kf6 d7 a2 e5+ Kf5 b6 c4 e7 c3 e8Q c2 b5 Ra5 b7 Ra4 e6 Qe7 b6 Kf6 Nc3 Nh6 Nh3 Ra7 Nf4 Rg8 Qd2 Na6 b8B Nf7 b7 Nh8 Rb1 a1N Rg1 Nb3 Bd6 Nbc5 b8N Bb7+ Nc6 Ba8 Rg3 Bb7 Na4 Ba8 Bh3 Bb7 Ba3 c1R Qe3 Rc2 Rb3 Ra2 Rd3 Ba8 Bc1 Bb7 Qa8 Qe8 Qc8 Be7 Qb8 Bd8 e7 Ba5 Qd8 Bc3 Qa8 Qb8 e8B Ba1 Bg6 Qe8 Be4 Qe5+ Kc4 Rf8 Nb8 Bd5+ Kb5 Be6 Kc6 Bf5 Qb7 Rd8 Qb3 Re8 Qg8 Rd8 Qe8 Rc8+ Kb5 Rcc7 Kb6 Rcb7+ Kc6 Rb3
n5qk/2RB3r/B1pbp1pP/3N2Q1/N1R5/5n1K/1R1r2Pq/r1QNb2N w - - 0 1 legal: proof: c4 d5 cxd5 Kd7 b4 h5 e4 a5 Qxh5 axb4 d6 Nf6 Qh7 Kc6 d7 Ng8 d4 Kd6 Bf4+ Ke6 Be5 f6 d5+ Kf7 d6 fxe5 Bb5 b6 Bd3 Bb7 Bf1 Bd5 exd5 Qc8 Nh3 Qe8 Ng1 Qd8 f4 e6 Kf2 b5 Kg3 e4 h4 b3 a4 b4 a5 b2 f5 e3 h5 b3 h6 e2 f6 e1B+ Kh3 Bg3 a6 Ra7 Ra2 Bh2 Ne2 Qe7 d8R Be5 d7 Bg3 d6 Bf2 Rc8 Bb6 d8N+ Ke8 Nc6+ Kf7 d7 Qe8 d8Q Nd7 Qc2 g6 Nbc3 b1R Rb2 Bf2 Qc1 Ne5 Nd1 Nf3 Ne7 Rh7 Nd5 Bd6 Ng3 Ne7 Rg1 Kg8 f7+ Kh8 f8N Ra8 a7 Be1 Nd7 Ra1 Nh1 Qg8 Nc5 c6 Na4 Rb8 Rc7 Nc8 a8B Nb6 Qdg5 Rd8 Bb7 Na8 Bc8 Rdd7 Bfa6 Rd8 Rf2 b2 Bd7 b1Q Rb2 Qe4 Rf1 Qe5 Rff2 Rb8 Rbc2 Rb2 Rc4 Rd2 Re2 Rd3 Ra2 Rd2 Rb2 Qh2+
2n1B3/rkB2prb/b2pBB2/Q3P3/N1P1q1pR/1N1b1n2/1K6/1N1q1R1Q w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h5 gxh5 a5 b3 a4 b4 Bd6 Nc3 Bc7 Nb1 Ba5 bxa5 Kf8 Bg2 Ke7 Bf1 Ke8 Kd2 g5 h4 a3 c4 a2 Kc2 f3 e4 f2 h6 d3+ Kb2 d2 h5 Qb6 h7 Kd8 a6 Kc7 h6 Qc6 a7 Ne7 b6+ Kb7 Ne2 Qg6 Nd4 Qe6 Qe1 d1B Bh3 f1B Bf4 Qd5 Bc7 d6 e5 Bd3 Be6 g4 Rh4 Nec6 Qa5 Bf5 Nb3 Rg8 h8B Be2 h7 Nd4 Bf6 Nf3 h8Q Bed3 Qh6 Nd7 Qc1 Bh7 Qh1 Kc6 b7 Qe4 b8N+ Kb7 Na6 Nb6 Nac5+ Kc6 Ka3 Rg7 Na4 Ba6 Kb2 Kb7 Qb5 Rb8 Qa5 Nc8 a8B+ Ka7 Bc6 Ra8 Bcd7 Kb7 Be8 Ra7 Na3 Rg5 Rg1 Rg7 Nb1 a1Q+ Kc1 Qad4 Rf1 Qde3+ Kb2 Qc1+ Ka2 Qce1 Kb2 Qd1
r1nQ2R1/1QNPb3/2p3qK/1R1p1P1B/8/bpq2b2/1RQQr3/1n2B1Nk w - - 0 1 legal: proof: c4 a5 e4 h5 g4 d5 gxh5 f5 exf5 e6 b4 axb4 d4 Bd7 cxd5 Bc8 d6 Ra6 d5 exd5 Be2 Ra3 Bf1 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 h4 Ke4 a4 g5 f4 b5 a5 b3 h6 b2 Kh5 b4 a6 c6 h7 g4 f6 b3 f7 g3 a7 g2 d7 Qe7 f5 Qd6 Rh2 Qb4 Bd2 Be7 f8R Qd4 Be1 Qc3 Ra5 Ba6 Na3 b1Q Qd2 Be2+ Kg6 Qbd3 h5 Na6 h6 Nb4 Nb5 Na2 Nc7 Bf3 Be2 Qe3 Rb5 Qg5+ Kf7 Re8 a8Q Ba3 Qb7 Ne7 Bd1 Nc8 Rg8 Re5 Be2 Qh5+ Kg7 Be7 Nh3 g1B Rg2 Bgc5 Ng1 Qe8 Rf2 Ba3 Rh2 Bh1 Bh5 Bf3 Qd3+ Kf4 Bf7 Nd6 Qe2 Qb4 Rf8 Bd8 Qc4+ Re4 Rb2 Nc3 Qd3 Bh4 Qc2 Nb1 Bg6 Qe6 Re8 Rf8 h8Q Qc3+ Kh7 Bd8 Qd4 Qf6 Qdd3 Re2 Qdd2+ Kg4 Re7 Qe6 Rg7 Bh4 Rg8 Ra8 Be8+ Bg5 Bf7 Qe8 Kg6 Nc8 h7 Bh4 h8Q Bd8 Qhh6 Bf6 Qf8 Bfe7 Qdd1 Kf4 Kh6 Ke3 Bh5 Qf7 Bd2+ Kf2 Qd8 Qe8 Be1+ Kf1 Rh8 Kg2 Rg8+ Kh1 Qdd2 Qg6+
K2r1b2/QqP1PB2/RrN1b2Q/Rq1N4/4k2p/2Bp2R1/Bp5q/3n1Rn1 w - - 0 1 illegal: No possible last move
1N3b2/p1Qq2R1/2Q1RQQB/2p4B/1rn5/b1bPrNP1/pqn5/1k3K1B w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 fxg5 f5 e4 fxe4 a4 bxa4 h3 Bg4 hxg4 Qd6 Rh2 Qd7 Rh1 Qd8 b4 Kf7 b5 Kg6 d6 h5 d7 c5 b6 e5 g3 h4 b7 a3 Qe2 h3 Qf3 a2 Bd3 h2 Na3 Nc6 b8Q Rh4 Be2 e3 Nb5 e4 Qc7 Nge7 Kf1 Nd5 Nd4 Na5 Nc6 Nc4 Nb8 Nb4 d3 Nc2 Qc6+ Qf6 Qc7 Qb2 Bd2 Kg7 Re1 Kg6 Qg2 Kg7 g6 Kf6 g5+ Kf5 Nc6 Re8 d8Q Re5 Bh5 e2+ Kf2 Ke6 Qf6+ Kd5 Nb8 Kd4 g7 Rg4 Be3+ Kc3 g6 Rh4 Bh6 e3+ Kf3 Re4 g8Q Rg4 g7 Rd4 Rb1 e1B Ke2 Bd2 Qgc6 Bc1 Kf1 e2+ Kg2 e1B Nf3 Re2+ Kf1 Re3 Qgf7 Kb3 g8B Bc3 Q7g6 Rf4 Rg1 h1Q Bd5 Qh3+ Rg2 Qd7 Re2 Bb4 Be4 Bcd2 Rbe1 Bdc3 Rh2 Ba3 Rh4 Na1 Rg4 Kc2 Re2+ Kb1 Bd5 Re7 Re6 Re4 Nh2 Re3 Bh1 Nc2 Nf3 Rg7 Qgf5 Re7 Rg7 Re8 Q5g6 Rc8 Qa5 Rc7 Qab6 Rb7 Qbc7 Rb4
Qr1bQn2/2NB2R1/prRn3k/N1PB4/KP2rqR1/1p2r2b/5pQ1/R7 w - - 0 1 legal: proof: b4 b5 g4 d5 c4 h5 gxh5 e5 f4 exf4 Ba3 d4 Bb2 c5 a3 Qb6 Bc3 dxc3 bxc5 b4 Nh3 b3 Ng1 Qb4 axb4 Bd6 Qc2 Be7 Qd1 Bf8 d4 f5 e4 Kf7 h4 g5 c6 Kg7 c5 a6 h6+ Kg6 c7 f3 h7 c2 Kd2 c1R h5+ Kh6 e5 f4 e6 f2 e7 f3 e8Q g4 d5 g3 d6 g2 d7 Nc6 d8Q Ne5 Ne2 g1R Na3 Bb7 c8B Nd7 Rh4 Ndf6 Qc2 Ne7 Kc3 Rd1 Rg4 Rd4 Nb5 Nfg8 Bg2 f1Q Bd7 Rd1 Nc7 Rd6 Nd4 Nc8 Kb2 Rb6 Ka3 Nf6 Ka4 Be7 Nc6 Nd6 Na5 Rb8 Qe2 Rg8 h8R+ Nh7 Qf2 Rf8 Rhg8 Rf4 R8g7 Bc8 Bh1 Nf8 Qg2 Bb7 Qc8 Bd5 Qb7 Be6 Qa8 f2 Qg3 Rd4 Bd5 Re4 Qg2 Qc4 R7g6+ Kh7 h6 Rge1 Rg8 R1e3 R8g7+ Kh8 h7 Bd8 Rf4 Bh3 Rfg4 Qc1 B5e6 Rf3 Rh4 Nb5 Rhg4 Qf4 Bd5 Rfe3 R7g6 Bg5 Rc6 Kg7 h8R Nd6 Rg8+ Kh6 Rg7 Bd8
3k1B2/N1R1b2P/2Rbnp1q/3Br3/R1R2nB1/2rPNbp1/3pQ3/bK1Q4 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 gxh5 Be7 Ra6 Bd6 Ra1 Bf8 d4 d5 Bg2 Bb4+ Kf2 Bd2 Bf1 Qf6 Kf3 Qxd4 Kg2 Qf6 Kf3 d4 Kf2 Qd8 Na3 d3 Nb1 Bc3 Ra5 d2 Ra1 Qd3 cxd3 Bb7 Qb3 Ba6 Qd1 Bc8 e4 c5 Ke2 g5 h4 a5 b4 f6 e5 c4 b6 a4 e6 g4 e7 a3 h6 a2 b5 g3 h5 Bb2 h7 c3 h6 c2 b7 Bc3 b6 Nc6 b8R Ra3 b7 Bb4 Nc3 Ra7 Nf3 Ra6 Ne1 Ra8 Bh3 Nd8 Ng2 Ra4 Ba3 c1B Ne3 Bb2 Nb5 B4c3 Na7 Rc4 Bg4 Be5 Rh4 Rc3 Bb4 Bd7 Rc8 Bd6 b8Q Bc6 Rc7 Ba3 Qb7 Bg2 Qf3 Ne6 Rc6 Kd7 e8B+ Kd8 Bf7 Ne7 Bc5 Rf8 h8R Nd5 h7 Re8 Rg8 Bb4 Rg7 Be7 Rc1 a1B Bg8 Bd6 Rgc7 Bh1 Qf2 Be4 Rc2 Bg2 Ra2 Bh1 Ra4 f3+ Kf1 Ndf4 Qfe2 f2 Bf7 Be5 Bf8 Bf3 Bg8 Be7 Bf7 Ng7 Bd5 B5d6 Bd7 Nfe6 Rhc4 Nf4 Bg4 Nge6 Qde1 Nc5 Qb1 Nd7 Qee1 Nc5 Bg7 Rg8 Bf8 Rg5 Qc2 Nh5 Qb3 Ne6 Qbb1 Bh1 Ke2 f1Q+ Kd1 Qf4 Qe2 Re5 Qc2 Qh6 Qc1 Ra3 Kc2 Nhf4 Qcd1 Bf3 Kb1 Rc3
K2Bn2B/NrbBRpRb/6P1/1P5N/1Q3brn/bp5N/5Q1p/qB5k w - - 0 1 legal: proof: f4 e5 a4 exf4 c4 g5 h4 d5 cxd5 gxh4 b3 b5 Ra2 a5 Ra1 Qd7 Ba3 b4 Bc1 Qb5 axb5 a4 Ra2 a3 Ra1 Ra4 bxa4 Bd7 Nf3 Bf5 Ng1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 h5 g4 a2 g5 c4 a5 f3 a6 f2 a7 b3 a8Q h3 Qd2 h4 Bb2 c3 Qa5 c2 Nc3 c1B Qb4+ Kc7 d6+ Kb7 Kd5 h2 e4 h3 e5 Bd7 e6 Na6 e7 Kb6 e8B Nh6 Nce2 Bf5 d7 Bh7 d8N Nf5 g6 Nh4 Nc6 Kc7 Bg2 f1R Be4 Rf4 Bb1 Rg4 Bd7 Bc5 Bc3 Rb8 Na7 Rb7 Ng3 Kb6 Qg2 Bf4 Nh5 Bf8 Qf2 Nc7+ Kc4 Bc5 d5 Ne8 Bf6 Kc7 Bh8 Bcd6 Kd4 Bde5+ Kc5 Bb2 Bd3 Ba3 Re1 a1B Bb1 Bg7 Re7 Bge5 Nf3 Bab2 Ng5 Ba3 Re1 h1Q d6+ Kb8 Re3 h2 Nh3 Qd1 Kc6 Qd4 Bdf5 Qa1 d7 Bc7 d8B Bcd6 Nf6 Rc7+ Kb6 Ng7 R7e4 Rd7 Nc8 Rb7+ Ka6 Bde5 Bd7 Bd6 Re8 Bde5 Rf8 Ne8 Nh5 Bd6 Bdf6 Kc7 Rg8 Bde5 Rg7 Bd6 Ne7 Bde5 Nc6 Bd6 Rc3 Bde5 Rc5 Kd6 Rc1+ Kd5 Bd8 Bc7 Re1 Rb8 Ka7 Rb7+ Ka8 Bh6 Na7 Bhf4 Rc1 Ke5 Qc3+ Kd5 Rc2 Ke4 Qb4+ Qd4 Qg1 Kf3 Re2 Qe5 Qgc5 Qa1 Re7 Kg2 Qf2+ Kh1
Bb1QRBQ1/1P1bnb2/1Pk1rK1p/3q2N1/2r3Rb/p7/2Q1Qp2/n4RN1 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 h4 g5 e4 gxh4 f4 f5 exf5 exf4 Ke2 Kd7 Kd3 a5 Ke4 c5 Ke5 h3 b4 a4 d4 h6 g4 c4 d6 f3 d5 f2 g5 c3 f6 c2 g6 Bb7 f7 Qc8 g7 Na6 Nd2 Nb8 Bg2 Ba6 Ne4 Be7 f8Q Qd8 Ba3 c1B Qe2 Bc8 Rh2 Bcg5 Rf1 Bh4 Ng5 Na6 Qf6 Rh7 Qg6 Nc5 Qgc2 Ra6 Bh1 Rb6 Rg2 h2 Rg4 Nb3 Be4 h1B Kf5 Nf6 g8Q Na1 Bf3 Rc6 Bg2 Rc4 Be4 Bf8 Ke5 Ke8 d7+ Ke7 Kf5 Kd6 Bf3 Kc7 d6+ Kb6 Ba8 Nd5 Ke5 Bg7+ Ke6 Be5 Kf5 Re7 Kg6 Qf8 d8R Qf3 d7 Bb8 Re8 Re5 Kg7 Kc7 Kg6 Kd6 d8Q+ Bd7 b6 Re7 b7 Kc6 Bb2 a3 Bg7 Re3 Bf8 Ne7+ Kg7 Qe4 Kf6 Bf3 Rg3 Bh5 Rg4 Qd5 b5+ Kd6 b6 Bf7 Rg2 Kc6 Rg4 Re6+
1B1n2nb/QR1nN3/1P2p2k/K2p1Qp1/4qR2/Q1B1q2P/3bB1Q1/4N1rq w - - 0 1 legal: proof: e4 f5 a4 fxe4 h4 g5 d4 b5 axb5 c5 h5 cxd4 Bd3 a6 Be2 Nf6 Bf1 Ng8 Bf4 a5 Qd3 Ra6 Nd2 Rg6 hxg6 h5 Rh4 Bb7 Rh3 h4 Rh1 h3 Nb1 h2 Bc1 Bd5 Qe2 Be6 Qd1 Bh3 gxh3 Rh4 Ra4 Rh7 Ra1 Rh8 Kd2 d3 Kc3 a4 Kb4 e3 c4 a3 f4 e2 g7 Kf7 b6 Kg6 b7 e1N f5+ Kh6 c5 d6 c6 a2 f6 d2 c7 Nd3+ Ka5 Nf2 b4 Nd3 f7 Ne1 b5 Qd7 c8Q Qe8 b6 Rh7 Qdg4 d1Q Qcf5 e6 Qg2 Rh8 Nc3 Qe2 Bd2 Qe3 Nf3 Qc6 Be2 Qce4 Rf1 h1Q Nd5 Nd7 b8B Nc2 Ne7 d5 Bc3 Nb4 Ne1 Rh7 Rf4 Nc6+ Ka6 Nd8 Ka5 Rh8 Rc1 a1B Rc2 Ngf6 g8Q Rh7 Qh8 Ng8 Qhe5 Bg7 Qc7 Bh8 f8Q+ Rg7 Rc1 Bb2 Ra1 Bc1 Qa7 Bd2 Ra4 Qf2 Rc4 Qfg1 Rc7 Qge3 Qe8 Rf7 Rb7 Ne5 Qa4 Nd7 Qa3 Rf6 Qe5 Rf5 Rf1 Rf3 Qf5 Rg3 Rf4 Rg4 Qf3 Rg1 Qf1 Q3f3 Qg2 Qfe3
Q3BQ2/4b1N1/p1B2P2/1qp1qb2/3bB1KR/B2n3N/2p2P1q/r2krNR1 w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 g5 e4 d5 exf5 a6 h4 gxh4 c4 dxc4 b6 Nh6 b7 Ng8 b5 Nc6 b6 Na7 bxa7 Qd6 Rh2 Qd3 Rh1 Qd8 Ke2 Kd7 Kf3 Kc6 b8Q Kc5 g4 Kd4 g5 h5 d3 e5 g6 c5 f6 h3 g7 c3 Qe2 c2 Bf4 h4 Qb5 h2 Bd2 e4+ Kf4 h3 Qf3 e3 Bg2 e2 Qb8 e1B Bc1 Qa5 Nd2 Kc3 Nf1 Ne7 g8B Qb5 Ba3 Bf5 Bf7 Nc6 Be8 Nb4 d4+ Nd3+ Kg5 Bd6 d5 Be7 d6 Rh4 d7 Ra4 d8N Ra5 Ne3 Kd2 Ne6 Ra4 Qc8 Rb8 a8B Rb6 Ng7 Re6 Bb2 Ra5 Rb1 Ra1 Ba3 Re5 Rb4 Re6 Qe4 Re5 Nf1+ Kd1 Rc4 Bc3 Bac6 Bd4 Qd5 Re1 Be4 Qb8 Qdd8 Qe5 Qa8 Qc7 Ne2 Qe5 Rg1 h1Q Nf4 h2 Nh3 Qg2+ Kh5 h1Q Qd6 Qhh2 Ra4 Bd8 Qf8 Be7 Kh4 Qg6 Rb4 Qf7 Ra4 Qc4 Kg5 Bg6+ Kg4 Bf5+ Kf3 Qd6 Bed5 Be3 Rb4 Qb3 Rh4 Qde5 Be4 Qa4 Bcd5 Bd4 Bdc6 Bg6 Kg4 Qb5 Bf5 Bh7 Bfe4 Bf5+
Q4BNk/1B2b2P/2p1Rq2/Q6P/rbB1p2N/bQ5p/Kqq1Qn2/n1R5 w - - 0 1 illegal: No possible last move, all moves rejected
q2b2R1/2p1Nq1p/bPN2N2/p2P1BBQ/NQR1q3/1Kr5/Q3r3/1nb3k1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Ke7 d4 Kd6 Kd2 f5 Kc2 a5 e4 g2 b6 g3 e5+ Kd7 d6 Kc6 b7 Kd5 b8Q Ke4 e6 f4 e7 f3 e8N f2 d7 Bc5 b5 Ba6 g6 Be7 g7 Nf6 g8Q Nd5 Bg5 Nc3 Ne2 Kf3 Qa2 g1B d5 g2 Rh4 Rf8 Nf4+ Ke3 Bc4 f1Q Ng6+ Kf2 Nf6 Bh2 b6 g1Q Qh5 Qgg2 Bd3 Bf4 Kb3+ Kg1 Bf5 Bc1 Rc4 Qe4 Qc8 Qe8 d8N Rg8 Nc6 Bd8 Nge7 Rg7 Bd2 Rg2 Bg5 Rc2 Qd7 Qg8 Qd6 Qff4 Qb4 Qf8 Na3 Nb1 Nb5 Qf7 Nc3 Qg3 Bh4 Qgg8 Na4 Qge8 Na7 Qc6 Bg5 Qb7 Nac6 Rc8 Nc3 Qa8 Na4 Qe3+ Bd3 Bd2 Rf4 Kg2 Nb8 Na3 Nf5 Be7 Bh4 Re8 Nc6 Bd8 Rc4 Re4 Rd1 Bc1 Nfe7 Nb1 Rg1+ Kh2 Rg8 Qf4 Qa1 Ree2 Bg5+ Kg1 Bf5 Qe4 Qa2 Rc3+
1r2n3/qpQNQ1B1/1B2b1RR/nqp5/1k2b3/nPN4q/p1QK2P1/1R1Q4 w - - 0 1 illegal: No proof kernel
B4n2/pR2qNN1/Q2B1Kp1/q1pk2nN/n2PrQ2/4rP2/2N2Q2/2r3bR w - - 0 1 legal: proof: e4 d5 g4 f5 c4 fxe4 cxd5 c5 a4 h5 a5 hxg4 a6 Be6 axb7 Na6 b8Q Bd7 Qb7 Rc8 Qa8 Ba4 Rxa4 Rc7 Ra1 Rc6 Ke2 Kf7 Ke3 e5 h4 g3 d4 g2 b4 g6 b5 Rf6 b6 Nb4 d6 Ke6 h5 Rf5 h6 Qf6 b7 Kd5 b8Q+ Nc6 d7 Bd6 d8N Qe7 h7 Nf6 Nh3 g1R Qe1 Rf4 Bg2 Re8 h8N Nd7 Ne6 Nb6 Nf7 Na4 Qab7 Rg4 Qa6 Nd8 Ng7 Ne6 Bd2 Nf8 Na3 Rf4 Qee2 Rc1 Nc2 Rg4 Qf1 Rf4 Rb1 Rf3+ Ke2 e3 Rb7 e4 Qe1 Bg3 Qf4 Bh2 Ba5 Bg1 Bc7 Rg3 Bd6 Rf3 Nhg5 Rg3 N5e6 Rh3 Bf3 Rh4 Nh5 Rh3 Kf1 e2+ Kg2 Rh4 Qed2 e1Q Neg7 Rh3 Qde3 Rh4 Kg3 Qa5 Bg2 Rh3+ Kg4 Rf3 Qe1 e3 Qd2 e2 Qde3 e1N Qee2 Qec7 Kg5 Re4 Kf6 Rfe3 Rb8 Nf3 Qc8 Re5 Qca6 Qd7 Qd2 Qe8 Rb5 Kc4 Qe1 Ng5 Ba8 Re7 f3 R7e4 Rb7+ Kd5 Qf2 Qe7+
n4Nn1/pQ2Q3/1rb1rp2/kP3N2/B1p1K2n/rq3NRB/4P1qR/N1R5 w - - 0 1 illegal: No possible last move
b2q3R/pQqNp3/3B2kB/6r1/RP1R1RN1/3qp1BP/nK1n1Qn1/2b5 w - - 0 1 illegal: No possible last move, all moves rejected
2knN2R/p1PRpNr1/2qQ2N1/b1pq2b1/PB1N2Q1/3Q2B1/K1nn4/2b5 w - - 0 1 legal: proof: e4 f5 b4 fxe4 b5 c6 bxc6 b6 c7 Ba6 c8N Nh6 f4 Bd3 c4 Nf7 g4 Na6 c5 Nh6 c6 Nb8 c7 Ba6 Bb5 Ng8 Bc6 dxc6 f5 Kf7 f6 b5 Kf1 b4+ Ke1 Nd7 Kf2 Ke6 Ke1 Rb8 Nd6 Qe8 Nc3 Qh5 Nb1 Qa5 h3 Kd5 Qa4 g5 Nf3 Rb5 Ng1 Kd4 Qd1 Rf5 Ne2+ Kc5 Ng1 Be2 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Qa4 Qe2 Qb5 Qd1 Qa5 a4 Kb6 d4 h5 Kd2 e3+ Kc2 c5 Kb2 b3 d5 h4 f7 g2 f6 e2 g5 e1B g6 h3 g7 h2 Ne8 Kb7 d6 Kc8 Bd2 Nh6 g8Q Qb4 Na3 Nf5 Nc2 Ne5 d7+ Kb7 d8Q Nc6 Nf3 g1B Qg4 Ne3 Qd3 Rg8 Ncd4 Nc2 Ng5 Qb5 Bb4 Bh6 f8N Be3 f7 Rg7 Ng6 Nd8 f8B Qc6 Nf7 Bhg5 Q1d2 Bef4 Rd1 Be3 Kb1 b2 Ka2 b1N Qa3 Rh7 Bh6 Rg7 Qdd3 Bc1 Rd2 Bgh4 Bf4 Bg5 Bg3 Qd5+ Qab3 Qc6 Rd1 Nd2 Qbc4 Qd5 Qe6 Qc6 Qd6 Kc8 Qce6+ Qd7 Qg4 Qf5 Rf1 h1Q Rf2 Qc6 Rh2 Nc4 Rh8 Bc3 Re1 Nd2 Re5 Qfd7 Rd5 Qe6 Qdf4 Qf5 Rd7 Qfe4 Qd6 Qg2 Ba3 Ba5 Bb4 Qgd5+
1n2nr2/2Qbn1p1/5k2/4R2B/PQ1b2P1/QN1p1B2/1RrBrpK1/1b3Q1N w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 fxe5 h5 g4 Nc6 gxh5 Qg5 h3 Qg4 hxg4 Nb8 Kf2 Ke7 c4 d5 e4 f5 a4 b5 c5 d3 h6 d4 h7 d2 c6 b3 c7 b4 e6 f4 e5 d3 Rh5 b2 Ra2 b3 Be2 f3 Nh3 Nh6 Qf1 d1B Nd2 b1N Rb2 Rg8 h8Q Bd7 c8Q Nc3 Qc7 Nf5 Qh6 Nd6 Qf4 Ra6 Qb4 Rc6 Kg1 Rh8 Nf2 Nd5 Nh1 f2+ Kg2 Bc2 Bf3 Bb1 Rg5 Rc2 Rh5 Ke8 e7 Kf7 e6+ Kf6 e8B Ne7 Re5 Rg8 Bh5 Ne8 Ra2 b2 Nb3 Nec6 Bd2 Bc5 e7 Rf8 Qa3 Bd4 Qb4 Nd6 e8Q Ne7 Qec8 Ne8 Q8b7 Nc8 Qa3 Ne7 Ra1 Ba2 Qb5 b1R Qbb4 Re1 Rb1 Re2 Rb2 Bb1
2rQR3/1Q2KPb1/3p2Br/5r2/R2q1Bkp/5np1/NQ1P1n2/2r1nRRN w - - 0 1 legal: proof: g4 b5 h4 c5 a4 f5 axb5 c4 e4 fxe4 f4 c3 f5 Bb7 bxc3 Qb6 c4 Bd5 c5 Qd6 f6 Be6 h5 Bf5 gxf5 Qh2 Nc3 Qxh5 Nb1 Qh2 c4 Kf7 c6 g5 b6 a5 c5 h5 c7 e5 c8R d6 c6 a4 b7 g4 c7 g3 Qc2 a3 Qb2 e3 Bd3 a2 Re8 h4 c8Q e4 Nc3 Nc6 b8Q Ra4 Nh3 Bg7 Nf2 Nd4 Rg1 Ra8 Nh1 Nh6 Qd8 Ng4 Qb8b6 Rc8 Qb7+ Rc7 Kd1 Nf3 Kc2 e2 Kb3 e1N Kb4 e3 Kb5 e2 Be4 Re7 Kc6 Nf2 Kd5 Rf8 Bd3 Rc7 Bc2 Kg8 Ke6 Kh7 f7 Kh6 f6 Kg5 Bg6 Rc8 Ke7 Rh8 f8R Rh6 f7 Kg4 Rb1 a1R Na2 Rh5 Rf1 Qg1 Rh8 Rf5 Rh5 Rf6 Ra5 Rf5 Ra3 Nd1 Ra4+ Qd4 Qa3 Nf2 Bb2 Ne5 Rd1 N5f3 Bc3 Rc1 Qab2 Qc4 Be5 Qd4 Q7b6 Ng2 Qbc7 e1R Qcb7 Re4 Rg1 Nge1 Rf1 Ref4 Rg1 Rh5 Rf1 Rff5 Bf4 Rh6 Rg1 Ng2 Rdf1 Nge1
4RNrb/r2P4/N1pbbN2/p6Q/B4Npn/1Rr2B1Q/2Qq1k1P/5r1K w - - 0 1 illegal: No possible last move, all moves rejected
3R1b2/pr1P2nq/1P5N/1N2Q2N/3p2rQ/Rr1pr3/2N1BK2/1kbbR1B1 w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 f5 exf5 gxh4 c4 d5 Qf3 d4 Qe2 Na6 Qd1 Nb4 d3 Nd5 cxd5 c4 Qe2 cxd3 Qh5+ Kd7 Qd1 Ke8 g4 Kd7 b4 Kd6 f4 h5 f6 e5 f7 h3 g5 h4 f5 h2 g6 e4 f6 Ke5 b6 e3 d6 Ke4 b7 e2 b8Q h3 d7 Ba6 g7 Rh4 b5 Rg4 b6 Bb5 Ra3 Ne7 g8N Ba4 Nh6 Nf5 Kf2 Ng7 Be3 Qe7 Qe1 Bd1 Nf3 Kd5 Qd8 Kc4 Nc3 Rb8 Nb5 Rb7 Qa5 Qe4 Ne1 Qh7 Rg1 h1R Nc2 h2 Qe1 Be7 f8N Bc5 Ne6 Bf8 Ra6 Kb3 f7 Kb2 Ra3 Kb1 Qh4 Rc7 Nf4 Rb7 Rg3 Rg1 Nh5 h1R Rf3 Re4 Rf5 Rg5 Re5 Rhg1 Re6 R1g4 Qa5 Rc5 Re7 Rc3 Re6 Be7 f8R Rb3 Rd8 Bf8 Kf3 e1B+ Be2 Beb4 Bg1 Bd2 Kf2 Be3+ Kf3 Rg2 Nd6 Kb2 Rf6 Bg5 Qe5 Bc1 Nb5 Kb1 Rf7 Rf2+ Kg3 Rh2 Rf1 Rh3+ Kf2 Rg4 Re1 Re3
3rNq2/1k1qR2K/r2n1r2/Q3PPp1/N3p1n1/B1pQR3/2Rr4/bN1R2B1 w - - 0 1 legal: proof: d4 e5 c4 exd4 a4 b5 axb5 h5 g4 Nh6 gxh5 Ba3 b6 Ng8 b7 Bf8 b4 f5 e4 d6 b5 Kd7 e5 Na6 Bg2 Nb8 Be4 fxe4 b6 Ke8 Nh3 Bd7 Ng1 Bb5 cxb5 Rh6 Bg5 Rh7 Bc1 Rh8 Ke2 Kd7 h4 c5 f4 a5 f5 d5 h6 g6 h7 a4 h5 a3 h6 d3+ Ke3 c4 Kf4 d2 Ra2 d4 Rc2 a2 Ne2 a1Q Nec3 d3 Ba3 Ra5 Na4 Ne7 Kg5 Rg8 h8Q c3 h7 Rg7 Kh6 g5 Qf3 Ra6 Rd1 Nc8 Qg8 Bb4 h8R Bf8 Qa2 Rg6+ Kh7 Rf6 Qh3 Nd6 Qf3 Nc6 b8N+ Kc8 Nd7 Ne7 b7+ Kc7 b8B+ Kb7 b6 Nd5 Qe2 Ne3 Ba7 Ng4 Qf1 Qc7 Qd5+ Qc6 Qa5 Qb2 Qf3 Qb4 Qf1 Be7 Re8 Bf8 Re7 Qc8 Re1 d1R Re3 d2 Qd3 Qd4 Rf7 Be7 Rg7 Qf8 Rf7 Re6 Nf6 Qd5 Ne8 Rf6 Rg7 Qc6 Rf7 Qd7 Rg7 Rg1 Rf7 d1R Rg7 Rg2 Rf7 Kc6 b7 Rf2 b8R Rfd2 Rc8+ Kb7 Rd8 Nc8 Bc1 Ba3 Re7 Bb2 Bc5 Ba1 B1a3 Rab6 Re1 Ra6 Bg1 Nd6 Re2 Rc1 Re3 Rcd1 Rc1 Rg2 Qc2 Qc7 Qb3+ Nb5 Qc4 Ra2 Rd2 Rb2 Rg2 Rd8 Rd1 Qd7 Qd3 Nd6 Rh2 Rf2 Rg2 Rf1 Ra2 Rf2 Rc2 Rd2
2r5/7p/B2b3q/1q2R1b1/3kNNQb/Bp3BK1/Pbr1PRBp/Q5nN w - - 0 1 illegal: No possible last move
5Bq1/1N3Bp1/bR4P1/1q1RPBp1/3RQp2/bn1K2k1/R2Nn1q1/q1r3Q1 w - - 0 1 legal: proof: b4 a5 f4 b5 a4 e5 axb5 exf4 c4 d5 cxd5 a4 g4 h6 g5 Nd7 g6 Ra5 bxa5 Nb8 Qb3 Bb4 Qg3 Bf8 Qg5 hxg5 d4 Kd7 Kd2 Kd6 h4 c5 e4 f5 b6 a3 h5 a2 h6 f3 a6 f4 b7 c4 a7 f2 a8B c3+ Kd3 c2 h7 Nd7 b8Q+ Qc7 e5+ Ke7 d6+ Ke6 d5+ Kf5 Qb4 Kg4 Ba3 c1Q Qe4 Qd8 Nd2 Ba6+ Nc4 Qb2 Nf3 Qc7 Nd2 Ngf6 Bh3+ Kg3 Rhb1 Kh2 Bf5 Qbb7 Rb6 Rg8 h8Q+ Kg3 Qhh1 Qcb8 Qb1 Nh5 Qg1+ Kh4 Bc5 Ng3 Bb4 Ne2 Ba3 Nf6 d7 f1Q d8R Qg2 d6 Kg3 d7 Qc6 Bb7 Qb5 Bd5 Qa8 Bf7 Be7 Rc1 a1Q Rc2 Re8 Ra2 Bc5 Rdb8 Rc8 d8R Nd7 Rd6 Rc7 Rd5 Be7 Rb6 Nc5+ Kc2 Qc8 Nd6 Nb3+ Bc5 Qb8 Nb7 Qc8 R8d7 Qg8 Rd4 Nc3 Ba3 Rc4 R7d5 Ne2+ Kd3 Bc5 Bb4 Bf8 Bc3 Ba3 Bb4 Qa8 Be7 Qg8 Bf8 Rc1+
1k2N3/rB1r1PP1/1R1pq1R1/q1QpB2K/b7/p5R1/1Q3rr1/Bb3nBN w - - 0 1 legal: proof: g4 f5 f4 b5 d4 g5 e4 fxe4 a4 c6 axb5 Bh6 d5 cxd5 h3 Nc6 h4 Nd4 Ra4 Nf5 gxf5 g4 Ra1 Bg5 hxg5 Bb7 Rh4 Ba6 Rh1 Bc8 Ke2 h5 b4 a5 c4 e5 g6 e3 f6 h4 g7 a4 b6 g3 Kf3 g2 Kg4 h3 b7 e2 b8B e1R c5 a3 c6 e4 c7 h2 b5 e3 f5 e2 b6 Ne7 b7 Ra4+ Qd4 Ng8 f7+ Ke7 f8B+ Ke8 f6 Rd1 Nd2 e1Q Nc4 Rh7 Qb2 Rd2 Ne2 g1R+ Ng3 Ra7 Bc5 Nh6+ Kh5 Rgg2 Bg1 Qe6 f7+ Ke7 Rb1 Rdf2 Nd6 Rh8 Ne8 Rf8 Bb5 Nf5 Bc6 Ne3 Bd2 Nf1 Bc3 Rg8 Re1 Rf8 Re4 Rg8 Rg4 Rf8 Rg6 d6 Be5 Bd7 c8Q Qb6 Bc7 Qa5 b8R Rg8 Bb7 Ba4 Bb6 Rf8 Qc4 Kd7 Bbd4 Rg8 Qc5 Rf8 Nc7 Rc8 Ne8 Rc7 Bc8+ Kd8 Rb6 Re7 Bb7 Rd7 Bc6 Kc8 Bb7+ Kb8 Qb3 Re7 Ba1 Rd7 Qb2 Re2 Be3 Rgf2 Rg1 h1B B3d4 Be4 Nh1 Bd3 R1g3 Bb1 Be3 Rg2 Bg1 Ref2
bk2N2n/2rP1KbB/R3B3/B1Pr1Q2/1N3p1q/B1p3NQ/p5qR/3bb3 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 c4 e5 g4 exf4 gxh5 d5 axb5 Nd7 Ra2 dxc4 Ra1 c3 Nf3 c4 Ng1 Nc5 bxc5 Qd3 Ra3 Qd7 Ra1 Qd8 Kf2 Kd7 Kf3 Kc7 Ke4 a5 Ke5 g5 h4 f5 d4 g4 e4 c2 h6 g3 d5 a4 h7 g2 h5 a3 h6 c3 d6+ Kb8 b6 f3 b7 f4 d7 f2 Ke6 Bd6 e5 Qb6 Kf7 Qb2 e6 Be7 Qh5 Bf6 e7 Ra7 e8B Ra6 Qf5 Be7 Bc4 f1B Rh2 Bh4 Be6 Ra7 Ne2 g1B Ng3 Be2 Nd2 Bd1 Nde4 Bf6 Nd6 Ne7 Ra2 Rg8 h8B Bf2 h7 Rg5 Ra1 B6d4 Bf6 Ng6 h8Q Be1 Bd8 Bg7 Qhh3 Qa2 Bb2 c1Q Ba5 Qe3 Bc1 Qg2 Bb2 Qef2 Ra2 Ra6 Ra1 Rc6 Bc1 Ka7 b8N Bb7 Na6 Rc7 Nb4 Kb8 Qc2 Ne7 Ne2 Ng8 Bb6 Nh6+ Ke7 Qgf3 Bg6 Nf7 Bh7 Q3g2 Ne8 Rd5 Qcf5 Ne5 Bb2 Ng6+ Kf7 Qh4 Ng3 Bg4 Rd1 Ba8 Bc1 a2 Ba3 Re5 Rd6 Rd5 Ba5 Bd1 Ra6 Nh8+
1r2R2N/B2PRq1p/3p2rn/B1Q2bN1/1BQ4q/1r1R1rn1/2P1Bp2/K6k w - - 0 1 legal: proof: d4 g5 h4 gxh4 a4 b5 axb5 Na6 d5 Nb8 d6 cxd6 f4 Bh6 e4 Kf8 e5 Kg7 e6 Kf6 exd7 Bf8 Ne2 Kf5 Ng1 Ke6 Rh3 Bg7 Rh2 Be5 Rh1 Kf6 Qd5 e6 Qd1 Ke7 Rh3 Bd4 Rh1 e5 Ra2 e4 Ra1 Be5 fxe5 Ba6 Qh5 Bb7 Qd1 Bc8 Kd2 Ke6 Kc3 Kf5 b4 a5 Kb2 h3 b6 f6 b5 a4 b7 h2 b6 e3 g4+ Kf4 e6 Kg3 g5 f5 g6 e2 e7 e1R e8R f4 g7 f3 Nd2 f2 Qh5 Qe7 Ngf3 Re3 Nh4 Qf7 Ng6 Na6 b8B Bb7 Nf3 Nh6 g8Q Nc5 Ng5 Rf3 Bc7 Rb8 Ra3 Be4 b7 Bf5 Rd3 a3+ Ka1 a2 Ba5 Ne4 Be2 Kg2 Ba3 Ng3 Re1 h1Q B3b4 Qh4 Re7 Kh2 Qc8 Re8 Nh8 Rg8 Qc4 Rg6 Re8 Ra8 b8B Kg2 Bf1+ Kh1 Ba7 Rc8 R1e7 Rb8 Kb2 a1R Be2 Ra3 Kb1 Rb3+ Ka1 Bh3 Qhg4 Rb2 Qgd4 Rb3 Qdc5 Bf5
N1bnK2R/1pPQ1Nk1/QPp5/np1B1b2/4Q3/2Rn4/1B1nQ2n/1r2rB2 w - - 0 1 legal: proof: b4 e6 d4 a6 d5 c6 b5 Bc5 d6 Ba7 Nh3 Bb6 Ng1 Bc7 dxc7 Ke7 Qd2 Kf8 Qd1 Ke8 c4 h5 f4 d5 g4 hxg4 b6 e5 fxe5 d4 Na3 Qd5 Nb5 axb5 cxd5 Rh6 Nf3 Rh3 Ng1 Rh8 Kd2 Kf8 Kd3 g5 Ke4 f6 h4 d3 a4 g3 e6 f5+ Ke5 g2 Kd6 g4 e4 g3 a5 d2 a6 f4 e5 f3 e7+ Kf7 e8B+ Kf8 a7 f2 h5 Bg4 h6 Nd7 h7 Bf5 e6 Kg7 e7 Ne5 Bb2 Nh6 Nh3 g1N Qe2 d1B Rc1 g2 Rc3 Nd3 Bf7 Nf3 e8Q g1N Ke7 Nfe5 d6 Nc4 d7 Na5 d8Q Nf3 Qdd7 Nh2 Bd5 Nf7 Ng5 Nd8 Nf7 Rb8 Qe4 Bdg4 a8N Rg8 Bg2 f1N h8Q+ Kg6 Qh4 Nd2 Bf1 Kg7 Qhe1 Rh8 Qa1 Rh3 Qa2 Re3 Qa4 Re1 Qa1 Rb1 Qe2 Nhf3 Rh8 Nh2 Qe4 Nac4 Qa6 Na5 Kd6 Ne6 Qee7 Re8 Qe2 Nd8 Q7e4 Rf8 Ke7 Bh3 Qd6 Bc8 Qd7 Bf5 Ne5 Rf6 Nf7 Rg6 Ke8 Rg1 Bh3 Rgd1 Bf1 Re1
k1nrR1r1/qN1PnpQ1/5B1Q/q1ppN3/1Q1Qq1rR/1P6/1n2K3/1B4R1 w - - 0 1 legal: proof: e4 b5 f4 d5 c4 e5 h4 exf4 a4 g5 axb5 gxh4 c5 Bd6 cxd6 Kf8 e5 Bf5 d3 Be4 dxe4 Ke8 g4 Kd7 b6 Kc6 d7 Kb7 g5 c5 b3 h5 e6 a5 e7 a4 e8R a3 g6 h3 g7 h4 e5 h2 e6 h3 e7 f3 Bd3 f2+ Ke2 f1N Nd2 a2 Ne4 Nd2 Bb2 Nc4 Bf6 Nb2 Bb1 Nc6 Nf3 Na7 Qd4 Nc8 Ne5 Kb8 b7 Qa5 Rg1 h1R Nd6 h2 Rg4 Rg1 Rh4 Nh6 g8Q h1Q Qh7 Nf5 Qh6 Rg4 Qg7 Ka7 Qh6 Rhg8 b8Q+ Ka6 Qb5+ Ka7 Nb7 Rb8 Qbb4 Ka8 Bc2 Qa7 Rg1 a1Q Bb1 Q1a5 Rd8 Qa4 e8Q Q4a5 Qef8 Nfe7 Re8 Qf3+ Ke1 Qf4 Qfg7 Qe4+ Kf1 Nd6 Kf2 Rd8 Kf1 Ndc8 Kf2 Qh7 Ke2 Qe4+
N1B1nrKN/3Rrr2/2p1B1RQ/1P1p4/1pN1r1n1/3kq2P/4nQ2/2B1B1r1 w - - 0 1 illegal: No possible last move
QnNrn3/p1RrBB2/5Q1Q/1Pq1N2P/pr1r1p2/4B2R/3r4/1QK2k1q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 h4 Nh3 g5 Ra3 Bc5 Qb3 Bf2+ Kd1 Bf5 Ra1 Bg3 Ng1 Bg6 Qc2 Bh5 gxh5 g4 Qb3 Be1 Qc2 g3 Qb3 g2 Qc2 Bg3 hxg3 Nh6 Ke1 Ng8 Qb3 Ne7 Qd1 Ng8 d4 Kd7 Kd2 Kd6 e4 f5 b4 c5 e5+ Kc7 e6 Kb6 e7 h3 e8Q h2 b5 c4 g4 f3 g5 f4 g6 f2 d6 Rh7 g7 Qf6 d7 Qg5 d8Q+ Kb7 d5 Qe5 d6 Qc5 d7 Nf6 Qh8 Ne8 Nf3 g1R g8Q Rg2 Ne5 c3+ Kc2 Rf7 Bc4 f1R+ Nd2 Re1 Qdg5 Re4 d8B Rd4 Qhf6 Rfd7 Bf7 Re2 Kb1 c2+ Kb2 Rf2 Ne4 Rfd2 Be7 Kc7 Nd6 Kb6 Rb1 Ka5 Nc8 Kb4 Rf1 h1R Qgh6 Rh3 Rh1 Rb3+ Ka1 Kc3 Rh3+ R4d3 Qgh8 Rb4 Rb3+ Kd4 Kb2 Ke4 Qf1 R3d4 Rc3 Re2 Be3 Red2 Ka2 c1Q+ Rc2 Qe1 Kb2 Qh4 Qb1 Qh2 Kc1 Qh3 Ng6 Kf3 Ne5+ Ke2 Qg8 Kf1 Rbc3 R2d3 Rh2 Qg2 Rh3 Qh1 Rc4 Rd2 Rc2 Qd6 Rc7 Qc5+ Qc2 Ng7 Nd6 Nc6 Qb8 Ne8 Qc8 Qb6 Qb1 Rb8 Qb7 Rbd8 Nc8 Nb8 Qa8 Qc5+
2B3BK/5R2/Q3QqB1/P1N1rq1n/pBp2N1Q/r6P/1k2pnR1/1r1nr3 w - - 0 1 illegal: No proof kernel
QR2N2N/2K3p1/R2b1rp1/BpQr3r/1P2N3/1rq1R1q1/k2P4/1b1q1BN1 w - - 0 1 illegal: No possible last move, all moves rejected
3KB1N1/1Qr2RNr/2n3kN/n1P3Bp/R4pN1/qB2n3/rP1p4/Q4rn1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 h3 f5 Ra2 Bb7 Ra5 Bf3 Nc3 Be7 Ra4 Bg4 Nb1 Bf6 gxf6 g5 Ra5 Bh5 Ra1 g4 Ra4 g3 Ra1 Bg4 hxg4 Qc8 Nh3 Qc7 Ng1 Qd8 Kd2 Kf7 Kd3 d5 e4 h5 c4 a5 e5 g2 b6 a4 g5 f3 b7 f2 c5 a3 e6+ Kg6 e7 a2 e8B+ Kh7 f7 Qc8 f8N+ Kg7 g6 Rh7 Ne2 g1N Bg5 Nh6 Nd2 Qc7 Ne4 Ra4 Nf6 Qc8 Ng4 Ra5 Ng3 Nc6 b8Q Qa6+ Qb5 Qa8 Qb7+ Nf7 Be2 f1R Qe1 Ra6 Bd1 Na5 Bb3 Rc6 Rh4 Rc7 Ne6+ Kh8 Qb1 Nd8 Ng7 Ndc6 Rh2 Kg8 Rg2 f4 N3f5 Kh8 Nfh6 Qa7 Re2 Qa8 Re7 Qa6+ Kc2 d3+ Kc3 d2 Rf7 Qa7 Kd3 d4 Ke4 d1N Kf5 d3 Ke6 d2 Kd6 Ne3 Qe1 Rc8 Kd7 Qa6 Rc1 a1R Rc4 Ra4 Qa1 Ra2 Ra4 Qd3+ Bd5 Qa3 Bb3 Ne5+ Ke7 Rc7+ Kd8 Nh3 Ne6 Ng1 Rf6 Rhf7 g7+ Kh7 g8N Rg7 Rf7 Kg6 Bc4 Rh7 Ng7 Re7 Bd5 Rc7 Bb3 Nec6+
1qQB4/8/1qp1N1b1/2P1p1b1/PRnp4/BQ2NQ2/B2b3q/QRK1k1bb w - - 0 1 legal: proof: d4 b5 e4 a5 g4 f5 b4 axb4 f4 fxe4 d5 c6 d6 Ra3 Kd2 Ra7 Ke1 Rc7 dxc7 Ba6 Ke2 Bb7 Ke1 Bc8 h4 h5 g5 Rh6 f5 Na6 Ke2 Nc5 Kf2 Rf6 Ke1 Ne6 gxf6 g5 Bh3 g4 Bf1 Ng5 hxg5 Bh6 Be2 Bg7 Bf1 Bf8 Kd2 Kf7 c4 d5 a4 e5 c5 e3+ Kc2 e2 Ba3 e1B Be2 g3 Qd2 g2 Rh3 b3+ Kd1 h4 Nf3 g1B Qe3 b2 Qb3 b4 Rh2 h3 Bd3 Bh6 Kc2 Ne7 Bc4 Qh8 Nd4 Bc3 Ne6 d4 Nd2 Nd5 Rb1 Nb6 Nf1 Bd7 c8Q Be8 Rf2 h2 Ne3 h1B Bd5 Nc4 g6+ Kg8 g7 Kf7 Qa2 Bg5 Qa1 b3+ Kd1 Qh2 Rc2 Kg8 f7+ Kh7 f8B Kh6 g8Q+ Kh5 f6 Kh4 Be7 Kg3 Bd8 Bg6 Rcc1 Kf2 f7 Bd2 Rc3 Be1 Rd3 Bc3 f8Q+ Qf4 Rc1 b1Q Qf5 b2 Qgf7 Ba5 Rb3 Be1 Qh3 Bc3 Qfb7 Qh2 Rb4 Qf5 Rb1 Qf8 Qg4 Qd6 Qe4 Qb8 Qb5 Nb6 Ba2 Nc4 Rc1 b1Q Qd5 Qb2 Rb1 Qb3+ Kc1 Ke1 Qf3 Nb6 Qd3 Nc4 Rb7 Qb4 Qc2 Qa5 R7b4 Qab6 Qb3 Bd2#
4B3/3KbBN1/1pp1q3/n1R3rp/Q4P2/npRb1P2/N2BR1n1/QB4rk w - - 0 1 legal: proof: c4 a5 b4 axb4 d4 d5 cxd5 g5 h4 gxh4 e3 e5 dxe5 f5 Qd3 f4 exf4 Bd6 Qd1 Bf8 Ke2 Ke7 Ke3 h5 Kd4 b6 a4 h3 g4 h2 e6 Kd6 f3 c6 a5 b3 a6 Nh6 g5 Rh7 e7 Nf7 e8B Bg4 a7 Nd7 g6 Bf5 g7 Rh8 g8B Nc5 Bd3 Be7 Ne2 Qb8 Ng3 Nb7 Ra2 Qc8 Nc3 Na5 Bb1 Ne5 Bgf7 Bd3 Re2 Qe6 Na2 Rg8 Bd2 Rg5 Qg1 Rd8 a8Q Nec4 Qd1 Na3 Nf5+ Kc7 Ng7 Kd6 Rhe1 h1N Re5 Rg1 R1e2 Ng3 Qa6 Rc8 Qb5 Rb8 Qa4 Nf1 Qc1 Rg5 Qb2 Ne3 Qa1 Ng2 R5e3 Bc4 Rc3 Rd8 Bd7 Rg8 Bde8 Qf6+ Ke4 Kc5 d6 Qh6 d7 Qd6 d8R Qd7 Rce3 Qg4 Nf5 Bd3+ Ke5 Qh3 Ke6 Qg4 Kd7 Qh3 Kc7 R8g6 Ng7 Qe6 Nb4 Kc4 Qa2 Kc5 Rd5+ Kc4 Rc5+ Kd4 Rf2 Bb5 Rec3 Bd3 Be1 Ke3 Qa1 Qf6 Rfc2 Qe6 Bd2+ Kf2 Na2 Kg1 Rb2 Qc4 Kd7 Kh1 Bg8 Re6 Bgf7 Re1 Bc1 Rf1 Re2 Rg1 Bd2 Qe6+
2N4R/4r1rQ/1n1RR1N1/1BpKbNR1/1q4B1/2k3P1/ppq1P1p1/5Qnq w - - 0 1 illegal: No proof kernel
2N1R2B/3qB2r/1R3pq1/p2b1P2/q2pr2N/1P1K2R1/Qb2pR1n/4QB1k w - - 0 1 legal: proof: e4 c5 h4 d5 h5 c4 h6 c3 Ke2 d4 Rh4 Na6 Rh5 Nc7 Rh1 Nd5 dxc3 gxh6 exd5 h5 a4 h4 b3 Bh6 a5 b5 axb6 Bd2 b7 Bf5 b8R Bd7 Rc8 Bxc8 f4 Kd7 g4 Kd6 c4 h5 f5 Ke5 d6 Kf4 c5 Kg3 c4 a5 c6 e5 g5 e4 d7 e3 c5 h3 g6 h2 g7 h4 c7 h3 c6 Qf8 d8B Bb7 c8Q Nh6 g8R+ Qg7 c7 Bf3+ Kd3 e2 Ba3 Ra7 Nc3 Rh7 Na4 Ng4 Bae7 Qg6 Nb6 Bd5 Nf3 Bc3 Nh4 Bb2 Ra4 Ra8 Rb4 Kf2 Rg1 h1Q Rg3 h2 Rg7 Qg2 Qe1+ Kg1 Rf3 h1Q Rf2 Qc6 Rg5 Nh2 Rg3 Qe8 Qd7 Ra6 Nc8 Re6 Qa4 Qd7 Rb6 Re4 Qa2 Qa4 Bf6 Qd7 Bg7 f6 Be7 Qa4 Bh8 Qd7 Rgf3 Qg6 Rg3+ Qg2 Na7 Qa4 c8R Kh1 Re8 Qf7 Nc8 Qg7 Rh3 Q2g6 Rg3 Q7f7 Rg4 Qe6 Rg3 Qed7
1NnqQN1R/5N2/2P2kB1/1rB5/3R1pB1/pB2Q3/KPpp2b1/b1b1n2q w - - 0 1 legal: proof: c4 a5 f4 e5 a4 exf4 d4 g5 h4 b5 hxg5 c5 Ra3 Qb6 Ra2 Ra7 Ra1 Rb7 Qd3 bxa4 Qd1 Qb5 cxb5 c4 Rh5 Rc7 Rh1 Rc5 dxc5 Bh6 Qb3 Bg7 Qd1 Bf8 Kd2 Ke7 Kc2 h5 e4 f5 g4 d5 e5 d4 c6 h4 b6 a3 b7 f3 e6 a2 g6 h3 g7 f2 g5 c3 Kb3 f4 g6 d3 Be3 c2 Qf3 h2 Bc5+ Kf6 e7 Kf5 e8Q Kg5 Qfe3 Nd7 b8N Kf6 Nf3 Ne7 g8B Rh5 g7 Ne5 Bh7 Bh3 g8B Nc8 Nd4 Bg2 Ne6 Nf3 Bg6 Ne1 Be2 f1Q Nc3 a4+ Ka3 Rd5 Rd1 a1B Ka2 a3 Bg4 Qf3 Rd2 Qd1 Nb5 Be7 Nf8 Rh5 Bb4 Bc5 Nd6 Bd4 B8f7 Rb5 Bb3 Bb6 Nf7 Bd4 Rf1 h1Q Bc5 Bc3 Rf3 Bb4 Rh3 Ba5 Rf2 Bd2 Rh8 Bc1 Rf3 Qd2 Rfh3 Qd1 R3h5 Qd2 Rd5 Qa5 Rd8 d2 Rd4 Qd8
B2n1Rq1/BQ2ppR1/1r3bR1/N3N1Q1/b1pB4/q3PK1k/1Pr2p1q/2B5 w - - 0 1 legal: proof: f4 d5 a4 g5 c4 a5 cxd5 gxf4 g4 Na6 g5 b5 axb5 h6 bxa6 hxg5 Qc2 g4 Qb3 Bd7 Qd1 Bc8 Kf2 Kd7 d4 c5 h4 f3 d6 Ke6 d7 Kf5 e3 a4 a7 c4 d5 a3 h5 a2 h6 Kg5 d6 Qc7 d8B Qc6 d7 Qc7 h7 Bg7 Nd2 Nh6 Bg2 Bf6 Nb3 Rb8 a8Q Qh2 Bb6 Kh4 d8R Bd7 Na5 Ba4 Ba7 Rb6 Qdd5 Nf5 Qab7 Nd4 Rf8 Nc6 Qf5 Rg8 h8B Nd8 Rb1 a1Q Qg6 Bg5 Bd4 Qa3 Ra1 Qd6 Ra3 Bf6 Rb3 Qa3 Rb5 Bc2 Rg5 Ba4 Qf5 Rh8 Rg6 Rg8 Ne2 Rh8 Nf4 Rh5 Nd3 g3+ Ke1 f2+ Ke2 Rh7 Bc6 g2 Kf3 g1Q Qg5+ Kh3 Ne5 Rh6 Bd5 Rb3 Be4 Rc3 Bc6 Rc2 Rg7 Qf1 Rg1 Qfd3 Bd5 Qh7 Qb5 Qc3 Qh5+ Bh4 Ba8 Qg8 Qb7 Rb6 R1g6 Qd3 Qh6 Qa3 Qf4 Bf6 Qf5+ Kh4 Qg5+ Kh3
2B1Q1QB/3PN1Qp/1kn5/1PN1p2p/3R2rn/5bp1/K4b1B/1b1qQR1q w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 d5 e4 c5 dxc5 d4 h4 Nh6 g4 Ng8 g5 Ra7 h5 Rd7 g6 Rd5 exd5 fxg6 Qf3 gxh5 Qe2 Qb6 Qd1 Qd8 Kd2 Kd7 f4 Kc7 c4 g5 Kc2 g4 Kb3 a4+ Ka2 e6 b4 d3 c6 d2 b6+ Kd6 c5+ Ke7 c7 Kd7 d6 Kc6 f5 a3 f6 Kb7 f7 Na6 b5 Be7 f8Q Bd7 c6+ Ka8 c8Q+ Nb8 c7 Nh6 b7+ Ka7 Bb2 Bf6 Qg7 Nf7 Bh3 Re8 Ne2 Ng5 Qe1 d1B Nd2 Nc6 b8B+ Kb6 Ne4 Bd4 N2g3 Bf3 Nf5 Bf2 Ne7 Rg8 Rd1 Be8 Rd2 Bg6 Nc5 Bge4 Rf1 Bb1+ Kb3 a2 Rd4 Qd7 Qe8 a1Q c8Q Qb7 d7 Qba8 Bh2 g3 Bg2 Qb7 Bc3 Qa4+ Kb2 Qd1 Qb8 Bfe4 Qbc8 Nf3 Qa8 Nh4 Qab8 Bbd3 Ka2 Bf3 Bb2 Rf8 Qbc8 Rf4 Qeg8 Bf5 Qce8 Bb1+ Ka3 Bg4 Qge5 Na7 Rd3 Qb8 Bb7 Qa8 Bc8 Qh1 Qeg5 Rb4 Bh8 e5 Q5g7 Bf3 Rd5 Rg4 Rd4 Nc6 Kb2 Bg6 Ka2 Bb1+
NQr1q3/1prqp2K/N3k2B/R1Q1r2p/R3p2P/1n3Q2/1P4n1/bNN4B w - - 0 1 legal: proof: g4 d6 f4 Qd7 f5 Qa4 a3 Nc6 f6 Bf5 gxf5 Nb4 axb4 Qd7 Ra4 Qc8 Ra1 Qd8 e4 c6 e5 g6 d4 Bh6 e6 fxe6 d5 cxd5 Qd4 Be3 Qd1 Bc5 bxc5 Kf8 Bh3 Kf7 Bf1 Ke8 Ke2 Kf7 Kf3 h5 Kf4 a5 Kg5 e5 c4 e4 h4 a4 c6 a3 c5 a2 c7 d4 c8N d5 c6 d3 c7 d4 Nb6 d2 c8Q d3 Qdc2 d1N Bg2 d2 Q2c5 Ne3 Ne2 d1Q Qb8 Ra5 Na8 Qe8 Bd2 Nh6 Nc1 Rb5 Rf1 Rg8 Bh1 Ng2 Rf3 Rf8 Ra3 Rh8 Bf4 Qdd7 Ra4 Ra5 Qd4 Re5 Qc5 Ng4 Bd2 Nf2 Be3 Rg8 Kh6 g5 Kh7 g4 Bh6 g3 Ra5 Nd3 Ra4 Qb5 Ra5 Qed7 Ra4 Rc8 Ra5 Ke8 f7+ Kd8 f8N Qbc6 Qg1 Nc5 f6 Nb3 f7 Qe8 Ne6+ Kd7 Nec7 Qd5 Na6 Ke6 f8Q Qd3 Qc5 Qdd7 Qf3 Rc7 Ne2 Rc8 Nd2 Rc7 Rc1 a1B Nb1 Ne3 Rc4 g2 Bf4 g1R Nc1 Ng2 Rca4 Re1 Bg5 Re3 Bh6 Rc3 Qb6+ R3c6 Qg1 Rc8 Qc5 R6c7
b6k/p3r1n1/3nRQPb/qp2B2K/1p1Rq1PQ/BBpQ4/8/2BN2nN w - - 0 1 illegal: No possible last move, all moves rejected
2R2Rn1/1QpK3R/1N1RbQP1/8/p1Q2PB1/1p2rr1b/1n2pn1B/k2rN3 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 f5 h4 fxe4 a5 gxh4 b4 Qd6 Be2 Bg7 Bf1 Qb6 axb6 a5 b7 a4 Ra3 Bd4 Ra2 Bb6 Ra1 Ba5 bxa5 Kd7 Na3 Kd8 Nb1 Ke8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 b4 g5 e3 a6 e6 a7 e2 g6 e1R Nf3 h3 Qb3 h4 Nc3 h2 Be2 h3 Qc4 Nd7 b8R Rg1 Ne1 b3 Bg4 Nb6 f4 Ba6 Rf8 Re8 a8Q Bc8 Qb7 e5+ Ke4 Re6 Kf5 e4 d4 e3 Bd2 e2 Rd1 Rf1 Be3 Rf3 Bg1 Rh7 Rd2 Rd7 Rd3 Rd8 Rd2 Nd7 Rd3 Nc5 Rd1 Nd3 Rd2 Kd7 d6 Ree3 d5 Nb2 Rf6 Ke8+ d7+ Ke7 Rf8 Kd6 Rd4 Rde8 Rd1 R8e6 d8Q+ Bd7 Qd3 Kc5 d6 Bc8 d7 Rd6 Qc2 Kc4 Qg5 Rdd3 Nd5+ Kd4 Nb6 Rd2 Qce4+ Kc3 Ke5 Rd4 d8R Be6 Rc8 Rd7 Nd3 Kc2 Rd2+ Kb1 Qf6 Ka1 Ne1 Rd8 Rd6 Rd7 Bf2 Rd8 Bg3 Rd7 Rf1 h1N Bh2 Nf2 Rh1 Rd8 Kd4 Rd7 Kc5 Rd8 Kc6 Rd7 Bg3 h2 Qc4 Rd8 Rf1 h1B Bh2 Bg2 Rh1 Re8 Na8 Bh3 Nb6 Bf7 Kd7 R8e5 Qd3 Rd5 Qc4 Rd1 Bg3 Bg2 Rh7 Bh3 Bh2 Be6+
bq2B3/q1kB1R1q/p5p1/1B1RN3/R4b2/PQN1P1Qr/4p2p/1K2Rb1r w - - 0 1 illegal: No extended proof kernel
kn4BQ/2Rb2P1/4q3/2B1Kpp1/b1RP1p2/bp2N1qN/Q1R2B2/2nB2q1 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 g5 Ra6 Qb3 Ra4 Qd1 Ra8 h4 f5 Qb3 b5 Qa4 Ra6 Qd1 Rf6 gxf6 g5 h5 h6 Nh3 Rh7 Ng1 Rg7 Nc3 Rg6 hxg6 h5 Nb1 Bd7 Qb3 Be6 Qd1 Bc8 e4 Kd7 Ke2 c5 Kd3 Kc7 a4 Kb7 e5 c4+ Kd4 b3 f7 b4 e6 h4 d6 b2 e7 h3 e8R h2 d7 b3 g7 c3 a5 c2 a6+ Ka8 a7 Qa5 d8Q Qa3 Ra2 Qe7 Na3 b1Q Be2 Nd7 Nh3 Ne5 Nc4 Kb7 a8B+ Kb8 Bd5 Nd7 Ne3 Qe6 Re7 Ne5 Rc7 Ba3 f8B Nd3 Bc5 Nf6 Qh8 Nd7 Bb2 c1Q Qc2 Qf1 Bd1 Nc1 Rg1 h1B d3 Qg6 Bg8 Bc6 Bc3 Qf2 Be1 Qg3 Bf2 Qe6 Qe2 Nf6 Rc2 Ka8 Rc4 Ba4 Qa2 Nd7 Rg2 Nb8 Rh2 Qh6 Ke5 Bcd7 d4 Qd3 Bg1 Qf1 Rhc2 Qa6 Bf2 Qfg1 Bf8 Qc6 Bc5 Qe6+
B3Q2K/1b1P3p/1k1qbB1N/n3n2P/R4p2/p3RBnn/Q3npQN/1B6 w - - 0 1 legal: proof: f4 b5 a3 e5 a4 bxa4 g4 exf4 Kf2 a5 Na3 f5 Nh3 f3 Nb1 f4 Ng1 Ra6 Ke1 Rf6 Bh3 Rf7 Bf1 Rf5 gxf5 d5 c4 g5 Ra3 d4 Ra2 Nf6 Ra1 Rg8 Nc3 Rg6 Nb1 Ng8 Qb3 Rd6 Qd1 Rd5 cxd5 Be6 Ra3 Bd7 Ra1 Bc8 Ra2 c5 Kf2 c4 Ra1 c3 Ke1 c2 Nh3 Bb4 Ng1 Bc3 dxc3 Qe7 Ra2 Qf6 Ra1 Qd8 Kd2 Kd7 Kd3 Kc7 Ke4 f2 Ke5 d3 b4 g4 e4 a3 h4 g3 f6 a2 b5 a4 f7 d2 f8Q g2 c4 Bb7 b6+ Kd7 d6 Kc6 c5 Bc8 h5 Bg4 b7 Be2 d7 Nf6 Na3 Bd3 Rh3 Ba6 Qf3 d1B Qg8 Bd3 Bb2 c1N Be2 Bb3 Nc2 Nd5 Ne3 Nb4 Ng4 Kc7 c6 Qc8 Kf6 Bf7 Kg7 Nd5 e5 Ba6 e6 Qd8 e7 Nb4 e8B Nc2 Bf6 Ne3 Nh6 Bb3 Kh8 Qe7 Bg6 Be6 Bb1 Kb6 c7 Nf1 c8B Nc6 b8Q+ Bb7 Qa8 Ng3 Qe8 Qb4 Qa3 Qc5 Nf3 g1N Nh2 Qd6 Bf3 Ne5 Qb3+ Qb4 Qc4 Qd6 Qf1 Nce2 Qg2 Be4 Bb7 B4d5 Qac8 Bc6 Ba8 Bb7 Rh4 Nh3 Qc4 Neg1 Rg4 N1e2 Rg5 Nc6 Ra5 a3 Ra4 Ne5 Bd3 Be4 Re1 a1N Qa2 Nb3 Bc2 Na5 Bb1 Neg1 Re2 Bb7 Re3 N1e2
RK1Nr3/3p1r2/nPpp3R/p2N1Q1n/QqP5/2N2n2/n1q3B1/2RBkN2 w - - 0 1 legal: proof: e4 b5 f4 b4 d4 b3 d5 Nf6 e5 Ng8 d6 exd6 e6 Be7 axb3 Bf6 b4 Bd4 b5 Be5 Be3 f5 fxe5 h6 Bc1 Bb7 Bg5 hxg5 g4 f4 Ra4 Be4 Ra1 Bf5 gxf5 Kf8 Ra2 Ke7 Ra1 Ke8 Kd2 Ke7 Kc3 a5 Kc4 g4 b4 g5 h4 g3 b6 g2 Kb5 g4 c4 f3 f6+ Ke8 h5 f2 h6 g3 f7+ Ke7 h7 Na6 b7 Nb8 Nd2 Na6 b8N Nc5 Nc6+ Kf8 e7+ Kg7 f8Q+ Kg6 e8N Kg5 e6 Nf6 e7 Kf4 Rc1 Ke3 Rh6 Na6 Ne2 g1N Bg2 f1Q Nc3 Kf2 Qa4 Qe2 Nf1 Nf3 Qf7 Nh5 Nf6 Rf8 h8R Qe8 Nfd5 Qc2 Qf5 Rf7 Nd8 c6+ Kb6 Rb8+ Ka7 Qg8 Bh1 g2 e8B g1N b5 Ne2 Bg2 Qg5 b6 Qgd2 Nb5 Nc3 Rf8 Na2 Nbc3 Rf6 Bg6 Rf7 Rg8 Nf4 Bh5 Rc8 Nb7 Re8 Nd8 Nd4 Bhf3 Nh5 Bd1+ Ke1 Ka8 Nf3 Rf8 N6b4 Kb8 Na6+ Kb7 Qb3 Ne6 Ree7 Ra8 Qdc2 Nd8 Qb4 Ka7 Re8 Kb7 Nc7 Kb8 Na6+
7b/Qr5p/1pNbkpq1/2B5/pBqRKn1N/RPpPnBR1/6R1/7Q w - - 0 1 legal: proof: c4 e5 f4 exf4 a4 d5 cxd5 b6 a5 Bb7 a6 Bc8 g3 fxg3 h3 Nd7 Nc3 Rb8 Nb1 Rb7 axb7 Nb8 Ra4 a6 Ra1 a5 Nf3 g5 Ra4 g2 Ng1 g4 Ra3 g3 Ra1 Bg4 hxg4 Qd7 Rh4 Qd6 Rh1 Qd8 e4 Kd7 Ke2 c5 Ke3 a4 g5 f6 g6 c4 e5 c3 b3 Bb4 d6 Nc6 b8Q Na7 g7 Bc5+ Ke4 Ne7 g8R Ke6 d7 Nd5 d3 Qe8 d8B Qh5 Nd2 Nc8 Rh3 Nce7 Ndf3 Qg5 Nh4 Bd4 Be3 Nc8 Ngf3 g1B Be2 g2 Qa7 Bc5 Be7 Bd6 Rg3 Nf4 Ra3 Qg4 Bc5 Be3 Qh1 g1Q Bf8 Ne7 Nd4+ Kf7 Nc6 Ke6 Rg5 Ned5 Bf3 Qg2 Be7 Rb8 Bb4 Rb7 Rg7 Bc7 Bec5 Bd2 Rd7 Ne3 Rd8 Qg1 Rd4 Bd6 Rg2 Bf8 Rg3 Bg7 Rg2 Bh8 Rg3 Kf7 Rg2 Qe6 Rg3 Qc4 e6+ Ke8 e7 Kf7 Rg2 Ke6 Rg3 Be1 Rg2 Bg3 e8R+ Kf7 Rg8 Ke6 Qh2 Nh3 Rg5 Bd6 Qh1 Nf4 Rg7 Qe1 R7g6 Qg3 Rg5 Qg4 Rg7 Qh5 R7g3 Qg6+
4qr2/1B2kPn1/P2pNbQq/K2R3R/2R3bp/p1pQ2p1/3NrB2/1QR5 w - - 0 1 illegal: No proof kernel
1q6/pBk5/2Bp1P1p/pnr1QQnp/R1NP4/3R1R2/1Rr5/b1q1NKN1 w - - 0 1 legal: proof: b4 f5 a4 c5 bxc5 f4 a5 b6 Bb2 bxa5 e3 Nf6 exf4 Ng8 f5 Qb6 Ra2 Qc7 Ra1 Qd8 h3 Qb6 Bf6 Qc7 Bg5 Qd8 Bh6 gxh6 g4 Ba6 g5 Bb7 Ra4 Bf3 Ra1 Bg4 hxg4 Qb6 Qc1 Qc7 Qd1 Qd8 c4 e5 d4 h5 f4 e4 f6 h6 f5 e3 c6 d6 c7 Kd7 c8Q+ Ke8 f7+ Ke7 c5 e2 g6 Qd7 c6 Qd8 g7 Qb6 g5 Qc7 g6 Na6 Ra4 Qd8 c7 Qd7 Rh3 Rh7 Na3 Qb5 Nc2 Qb3 Bg2 Qb5 Rd3 Qb3 Bb7 Nf6 g8R Ne4 g7 Ng5 Qc1 Rb8 Qf4 Qb1+ Kf2 e1Q+ Kg2 Qc3 Ne1 Qcc1 Kf1 Qb4 Bc6 Rb5 Qg3 Rc5 Qe5+ Ne6 Rh8 Qb8 g8B Bg7 f8R Bf6 Bf7 Bg5 Bfe8 Rg7 Bb7 Bd2 Bec6 Bc3 Rhg8 Rh7 Rg2 Ba1 Rb2 Rc2 Rg8 Rc5 Rgg3 Rg7 Rh3 Rg2 Rhf3 Rgc2 f6+ Kf7 Qe3 Ng5 Qf5 Kf8 c8N Nc7 Nb6 Nb5 Nc4 Kf7 Be4 Ke8 Bec6+ Kd8 Qee5 Kc7
8/1pR1KB2/B1Qp2pR/1PQnB3/R1bN1nbn/3BkNr1/1P1pp3/r7 w - - 0 1 legal: proof: g4 e5 e3 a5 g5 f5 g6 hxg6 Ke2 g5 Ke1 g4 Qe2 Ra6 Qd1 Re6 f3 e4 f4 Re5 fxe5 f4 a4 c5 Be2 f3 Ba6 Qb6 d4 Qb5 axb5 cxd4 Qd2 Be7 Qd3 Bg5 Qd1 Bf4 exf4 Rh6 Nh3 Rh5 Ng1 Rh8 Kf2 Kf7 Kg3 Kg6 h4 Kf5 c4 g6 c5 e3 c6 Ke4 e6 e2 f5 a4 f6 f2 c7 f1B e7 a3 e8B a2 f7 d3 f8Q Nf6 h5 Bh3 Kh4 g3 Kg5 g2 h6 Ng8 h7 Nc6 Nd2+ Kd4 Nb3+ Ke4 Bf4 d2 Qc1 Ne5 Bf7 Nf6 Nd4 Kd3 Ngf3 Bg4 Qc3+ Ke4 Rhc1 Nd3 Be5 Nf4 Qe8 d6 Qb4 Bce6 c8B Bh3 Rc7 Bc4 Bf5+ Ke3 Qc6 N6d5 Bd3 Bg4 Qbc5 g1N Ne1 Nb6 Kf6 Nf3 Ke7 Nh5 Rc1 Nf4 Rc3 a1R Ra3 Nh4 Ra4 Rf8 h8R Nh5 Be6 Rf3 Rh6 Nf4 Bf7 Rg3 Nef3 Nbd5+
Q3bBRq/3k1p1p/1R2rQ1R/r1bpbN2/5Q2/pP2P3/B1Rq3p/3N1K2 w - - 0 1 legal: proof: e4 b5 d4 d5 h4 g5 a4 gxh4 axb5 c5 e5 cxd4 Be3 Na6 Ra2 Nc7 Ra5 Nf6 Rh2 Ng4 Bg5 Ne3 Kd2 Kd7 Bc4 Ne8 Rh1 Nd6 exd6 e5 Ra1 e4 Bf1 Ke8 Ke1 Ng4 Bc1 e3 Ke2 Qf6 Ke1 e2 Kd2 Ne3 fxe3 Qd8 Ke1 a5 g4 h3 c4 a4 b6 d3 d7+ Ke7 c5 Bb7 c6 Ra7 g5 Qa8 d8Q+ Ke6 c7 Be7 c8R Qb8 g6 Bb4+ Nc3 Re8 g7 Ra5 g8R Rb5 Qf6+ Kd7 Rb1 Bf8 Nf3 Ra5 Nd4 Qe5 Nf5 Bc6 b7 Qe6 b8Q Bb4 Qf4 Bc5 Qd2 Qe7 Nd1 Qe5 Qdb4 Re7 Qb8 Re6 Qa8 d2+ Kf2 e1B+ Kg1 Qd6 Bc4 Qf8 Kf1 Bg3 Ba2 Qg7 Rh2 Qh8 Rh1 Bb7 Rc6 Bh2 Rb6 Bc6 b3 a3 Bb2 Bg3 Rc1 Ba4 Rc2 h2 Rg1 Bc6 Be5 Ba4 Bd6 Bc6 Bf8 Ba4 Q4h4 Be5 R1g6 Bc6 Rh6 Ba4 Nb2 Bc6 Qf4 d1Q+ Kf2 Qd2+ Kf1 Kc7 Nd1 Be8 Rb7+ Kc6 Rb6+ Kd7
1N1B2nB/pQN5/n3r1pr/Q2KR2P/2np3q/BQ1pR1Pq/2Qp4/k7 w - - 0 1 illegal: No proof kernel
3N2R1/4n1nK/k1p1N3/3P3p/2P2p2/1n1B2BQ/BpR1p1Q1/qb1qBq1Q w - - 0 1 legal: proof: e4 a5 b4 axb4 Ne2 d5 Ng1 dxe4 f4 e5 Kf2 b5 Nf3 e3+ Ke1 e4 Ng1 Ra6 Qh5 Re6 Qd1 Re5 fxe5 Qd5 Qf3 Qd3 Qd1 Qd8 g4 h5 h3 f5 Bc4 g5 Be2 f4 Bf1 Be7 h4 Rh6 Be2 Rf6 Bf1 Rf5 gxf5 g4 Nh3 Nc6 Ng1 Bg5 hxg5 Nb8 Ke2 Kd7 a4 Kc6 d4 Kb7 e6 b3 a5 b4 g6 g3 f6 b2 g7 b3 e7 g2 e8Q Be6 a6+ Kb6 f7 Nc6 f8B Bc8 a7 Qd5 a8Q Nh6 g8B Qe5 Nf3 g1Q Bb4 Bg4 Bcd2 Qe7 Nc3 b1Q Qd7 b2 Na2 Na5 Be1 Nf7 Rh2 Qf6 Bg3 Nh8 Bbe1 Qf5 Nb4 Qg5 Ba2 Qd8 c4 Ng6 Nc6 Bf5 Ng5 Nb3 Ne6 Ne7 Qdc8 Qd6 Ncd8 c6 d5 Qa3 Qd2 Qa5 Rg2 Qc2 Rc1 Qa4 Qd7 Qb1 Rc2 Qa1 Qc1 Bg6 Qb8+ Ka6 Qb4 Bh7 Qbd2 Qh1 Kd1 Bg6 Bd3 Qf1 Rg1 Bh7 Qg2 Bg6 Rd2 e2+ Kc2 e3 Kc3 Nc5 Kd4 Qd1 Ke5 Nb3 Kf6 Bh7 Kg7 Be4 Bef2 e1N Rc2 Nf3 Be1 Nh4 Kh8 Nhf5 Kh7 Qde2 Qd1 Qd2 Qdf3 e2 Qh1 Qdd1 Qfg2 Bf3 Nf8 Ng7 Qdh3 Bg4 Nfe6 Bf5+ Kh8 Nd4 Qgh2 Nb5 Rd2 Qa4 Be4 Nd4 Bgf2 Ng6+ Kh7 Q4d1 Rg5 Ne8 Q2g2 Nb3 Bg3 Ne7+ Rg6 Bg4 Rg8 Ng7 Beb1 Bf3 Bf5 Be4 Bg6 Bc2 Bd3 Bb1 Rc2 Ka7 Qh4 Kb6 Q4h3 Ka6
K4q1Q/1pb2pR1/R3R2N/B4p2/4PB2/qPpp4/bRqQ1pn1/5BkN w - - 0 1 illegal: No proof kernel
q1b5/2B3n1/q6R/b3Q2n/kBR1rrbn/1r2Q1KP/B1rN1r1P/N5BN w - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 f5 h4 f6 h3 gxh3 exf6 Ra4 f5 Ra1 f4 Kf2 a5 c4 d5 b4 Kd7 e4 f5 c5 g5 e5 g4 b6 Kc6 e6 d3 e7 Kb5 e8N f3 c6 a4 b7 g3+ Ke1 g2 Kf2 d4 c7 a3 Qd2 f4 Qe1 a2 Nd6+ Ka4 b5 d2 b6 d1B Qd2 d3 Qe1 d2 Na3 Nf6 Ndc4 Rh4 Nc2 Bb4 Qe8+ Nbd7 b8B Nh5 b7 Ng7 Qe2 Nf6 Ba3 Ba5 Ba7 Rb8 Bb4 Rg4 Rc1 a1Q Qe3 Qg8 Ne2 g1N Bd4 Qe6 Bg2 Qa6 Ng3 Be2 Bf1 d1R Nd2 Qa3 Rb1 Rc1 Na1 Rc2 Rc1 Bd1 Bc4 Qa8 Qe5 Qd3 Ba2 Qda6 Bdc5 Be2 Re1 Bd1 Re4 Be2 Rc4 Bd1 Kf1 f2 Kg2 Nf3 Re1 f1R Bg1 Rh4 Re2 Re1 Rf2 Re4 Nh1 Be2 Rf1 Rg4+ Kf2 Nh4 Rb1 f3 Rd1 Be6 c8Q Rgf4 Kg3 f2 Qcc5 f1R Qe3 R1f2 Rb1 B2g4 Rb2 Re8 b8B Bc8 Bc7 Rd8 Rb1 Rd3 Rc1 Rb3 Rc6 Rcb2 R1c4 Rc2 Rb6 Ng8 Rg6 Nf6 Rh6 Nfh5+
1r6/Q1Q1bk1b/qRb4Q/1rq2B2/1N2nqq1/KR2B1PB/2rP3n/3N2qB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 b4 a5 e4 f5 e5 h5 e6 c5 e7 h4 g3 c3 g6 h3 g7 c4 b6 h2 b5 c2 b7 a4 b6 c3 Ra3 f3 Bg2 f4 Bh3 f2+ Ke2 f3+ Ke3 f1Q Ne2 f2 Rb3 a3 Bb2 c1R Ba1 c2 Nec3 a2 Nd5 Nd7 Kd4 Nc5 Kc3 Nh6 Kb2 Ra5 b8Q Qd7 g8B Ne4 b7 Qa6 Bge6 f1Q Qa7 Qf4 b8Q Rb5 Bef5 Kf7 Qbc7 Ng4 Nbc3 Rg8 Rg1 h1B Nb4 Nh2 Rf1 Qde6 Qh5+ Qg6 Qh6 Qgg4 Rf2 Bd7 Rf3 Bc6 Nd1 Bg2 Rfd3 Bf1 Rd6 Bd3 Qa5 Rh8 Ka3 Rg8 Bd4 a1Q+ Na2 Qc3 Nb4 Qc5 Be3 Nf2 Bd7 Bh7 Bf5 Ne4 Qc7 Rb1 Rg6 Rb2 Re6 c1Q Qa7 Bd5 Rb6 Bc6 Qc7 Qb1 Qa4 Rc2 Qa5 Rh8 e8B+ Kg8 Bed7 Be7 Bg2 Kf7 Bh1 Rb8 Qa4 Qg7 Bh3 Qgg4 Bf5 Qb7 Qa7 Qc8 Nc3 Qg1 Nd1 Qa6+
5q1k/Q3B3/1Nnnqq2/bB1r1r2/3QR1NK/2P1nbQ1/R1PQ3n/1b2Rn2 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 h5 c4 h6 c3 dxc3 gxh6 Ra5 h5 Ra1 h4 Kf2 a5 g4 f5 b4 Kf7 e4 Kg7 e5 d5 e6 h5 e7 f3 e8Q f4 g5 h3 g6 a4 b6 d4 b5 a3 b7 a2 b6 d3 Qde2 d2 Q8e6 d1N+ Ke1 h2 Qd5 h4 Qf5 h3 Qee4 f2+ Ke2 Ra5 Kf3 Qf6 Kg4 f3 Qd3 Ne3+ Kg3 Bb4 Qd2 Nh6 Bd3 Rd8 Qg4 Kh8 Na3 Be6 Bb5 Nf7 Nc4 Nc6 b8Q Nd6 b7 f1Q Ba3 f2 Re1 a1Q Nf3 Qa2 Nfe5 Bd5 Rg1 h1B Nb6 h2 Qa7 Bhf3 b8R Bg8 Rh1 Qae6 Ra8 Qf8 Rg1 h1N+ Kh4 Ng3 Qgd4 Rd7 Re8 Rf7 Ra1 Rf5 Ra2 Bf7 Bd3 Rc5 Bb5 Ba5 Rh1 Rd5 Ng4+ Qe5 Bc5 Qe1 Bb4 f1N Ba3 Qg7 Re4 Nh2 Bc5 Qe2 Re1 Ngf1 Ba3 Nb7 Be7 Nd6 Qc4 Rg5 Qcd3 Qf6 Qd4 Rdf5 Ra4 Ba2 g7+ Kg8 Ra3 Bb1 Ra1 Qc4 Ra2 Qce6 Nf2 Rd5 Ra3 Kh7 g8Q+ Kh6 Ra4 Rge5+ Qg5+ Kh7 Ra2 Q6h8 Qf4 Rf5 Ng4 Qhe5 Qg3 Kh8 Qc5 Qeg7 Qcd4 Qgf6+
2Bn4/1NQq3R/6K1/Bqr1Bqn1/Q3b1r1/bRPnq1BP/3QN3/k1r1q3 w - - 0 1 illegal: No possible last move, all moves rejected
1n1bqrqr/2B3KN/2Qr1B2/3NbB2/6PN/1brQ1PR1/5q1r/1R1Nk2n w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 b4 e5+ Ke3 c5 d4 a4 f3 h3 b6 a3 b5 h4 b7 a2 b6 c4 Bd2 h2 Qb3 c3 Nh3 c2 Qc3 c1R Bd3 Nf6 Nf2 h3 Rg1 h1R Rg3 h2 Nd1 Be6 Qc4 Qe7 Nbc3 Qe8 Rb1 a1B Be1 Nh5 Qc6+ Ke7 d6+ Kf6 d5 Kg5 d7 Kh4 d8B+ Be7 d6 Bb3 Bc7 Bd8 Nd5 Rc3 d7 Bb2 Ke2 e3 Bf5 e4 Bd2 Rg1 Bc1 h1R Bd2 Be7 d8Q Ba1 Qdd6 Bd8 Bc1 Rh3 Bb2 Rgh1 Qa3 Rh6 Qa6 Rd6 Qd3 R3h2+ Nf2 Na6 b8N Qe6 Nd7 Nb8 b7 Qe8 Rgg1 Qe6 Nf8 Ng3+ Ke1 e2 Kd2 Qe8 Ke3 e1Q+ Kf4 e3 Nh7 e2 Nd1 Qf2 Rg2 e1Q Rg1 Na6 b8N Q1e6 Nd7 Nb8 Ndf8 Kh3 Re1 Kg2 Ng6 Qf6 Re2 Kf1 Nh4 Qfe6 Rd2+ Ke1 Rc2 Rc5 Bf6 Be5+ Kg5 Rc3 Kh6 Rg1 Qd7 Nh1 Qc6 Rg3 Kg7 Rgh3 Ng6 Rh5 Nh4 Rh6 Ng5 Rh8 Nh7 Qc5 Rg2 Qf2 Rg1+ Qf1 Qb6 Ra7 Rg3 Qf2 Qc6 Rb7 Kh6 Ra7 Bb6 Rf7 Bc7 Rff8 Kg7 Qg8+
1B1kq3/2q2n1r/BQRbrq1B/1Qr2bQ1/2nbP3/6PN/8/QNR1Kbb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 c5 e4 a5 d4 h5 g3 f5 d6 h3 b6 a4 b5 h4 d5 c4 b7 f3 b6 a3 Bd2 a2 Bg5 f2+ Ke2 f4 Qd2 h2 Qe1 c3 Bh3 f1Q+ Kd1 f3 Nd2 f2 Rc1 a1B Ndf3 c2+ Kd2 Bd4 Be7 Nd7 b8Q Qc7 b7 Nh6 Rd1 Ra6 Bg5 Nb6 Rc1 Nf7 Bh6 Kd8 d7 Bd6 Bg4 Ra5 Nh3 Rc5 Bh5 Qa6 Qd1 f1B Ke1 Re8 Nd2 Bg1 Be2 Re6 Nb1 Nc4 Qd4 Qa8 Qa1 Bd4 Rg1 h1Q Rg2 Qg1 Rf2 Qh1 Rf6 Qf3 Rg6 Qf6 Bd3 Nb6 Ba6 Bg1 Qa7 Bd4 b8B Nc4 Qb6 Qc6 Ng1 h3 Qb5 h2 Nh3 h1R Bg5 Ke7 Rh6 Kf8 d8Q+ Qe8 Bf4 Re7 Rg6 Bf5 Bg5 Re6 Bh6+ Qg7 Qh4 Rh2 Rf6 Ke7 Qg5 Kd8 Rg6+ Be7 d6 Qf6 d7 Bd6 Rd1 Qfe7 Rf6 c1B Rg6 Bce3 Rc1 Bg1 Rf6 B6e5 Rg6 Rb6 Rc6 Qf6 Nf4 Rh4 Nh3 Bd6 Bg7 Rh7 Bh6 Ke7 d8Q+ Ke6 Qc8+ Ke7 Qb7 Kd8 Qbb2 Rbb5 Qb6 Re5 Qb4 Rbc5 Q4b5 Re6
2b1rqqn/4n1qb/1NNbB3/2B2P1K/Q1R5/NP2Q1r1/1r1bR1b1/1N1B1k2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 f4 Kg6 d4 Kh5 g3 Kg4 d6 h5 d7 c5 b3 a5 b6 e5 d5 c4 b7 c3 d6 e3 Qd4 a4 Ba3 h3 Bc1 e4 Qd2 a3 Qc2 a2 Nd2 h2 Ngf3 h4 Bg2 h3 Nc4 Nc6 b8N Nh6 Re1 h1B Qd3 h2 Nfd2 c2 Bf3+ Kh3 g4 Ne7 g5 Rg8 g6 Nf7 g7 Nh8 Nb1 Bg2 Ba3 c1R Bc5 h1B Nca3 Rc2+ Qd2 Qe8 d8N Rb2 d7 Kg3 Rc1 Kh2 Rc4 Kg1 Ndc6 Qg6 Kd1 Kf1 d8Q Qg4 Q8d4 e2+ Kc1 e1B Kd1 e3 Nd7 Qf5 Nb6 Qg5 Qb4 Bd2 Qa4 Rb8 Bg4 Be4 Qe5 Bh7 f5 Bg2 Qe4 Nd5 Qd4 Bd6 Bf3 Re8 g8B Ne7 Be6 Qg8 Bg4 Kg1 Ke2 Rb7 Kd3 Kf1 Bd1 e2 Qe3 e1Q Kd4 Qeg3 Kd3 Qf8 Kd4 Bh3 Ke4 Qgg8 Kf3 Ra7 Qg5 Bg2+ Kg4 Rc7 Kh5 Rb7 Qe3 Ra7 Nc3 Ra6 Rc1 a1Q Ncb1 Ra7 Qb5 Ra4 Re4+ Rc4 Qa4 Rc3 Re5 Rd3 Rc4 Rc3 Qh6 Rg3 Re2 Rc2 Qg5 Qag7 Qe3 Rb2
1qQ1bB1n/3nK2R/2RNQ1Nb/r4PR1/5P2/1n1Br3/Q3b1R1/bqqbk3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 b4 d5 g4 a5 f4 e5+ Kh5 a4 c4 d3 c5 d2 c6 Ke3 g5 Kf2 c7 d4 b6 d3 b7 h3 b5 h2 b6 a3 g6 a2 g7 e4 Nc3 e3 Nb1 e2 Bb2 e1B Qc2 Nd7 b8R Ra5 b7 Ne7 Kg5 h5 g8R h4 Ba3 h3 Qa4 d1B Nf3 d2 Ne5 Be2 Nc3 d1B Rc1 a1N Ng6 Nb3 Nb5 Bc3 Nd6 Ba1 Rc6 Ke1 Qc4 Rh4 Qe6 Qe8 Rg1 h1Q Rg2 h2 Ra8 Rh8 b8Q Rh3 Ra7 Re3 Qa8 Qg1 Rg7 h1Q Rh7 Bca6 c8Q Bab5 Rac7 Qd8 Rb7 Qb6 Rbc7 Qb8 Ra7 Ne5 Kf6 Bh6 Rd7 Ba4 Rd8 Bab5 Rg8 Nd7+ Kf7 Ba4 Rg5 Qe4 Qaa6 Qb1 Bc5 Bg4 Bd3 Bge2 Qac4 Qf1 Qc2 Qc1 Qa2 Bb5 Bd4 Qh1 Bg7 Qg1 Bf8 Qb1 Nh4 Ng6 Rgg7 Nh8+ Ke7 Bh5 Rg2 Be8 R7g5 Ba6 Ng6 Qf1 Be4 Qc4 Bd3 Qcc1 Bc2 Bf1 Bd3 Bfe2
7K/4R2n/1b1Q1qbN/N1bPr1n1/1n1R1NbR/1q2QR1P/1r5k/1BB1q2b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 c5 b4 g5 b6 a5 b5 f5 h3 a4 b7 g3+ Kf3 a3 b6 g4+ Kg2 c4 Qd3 c3 Rh2 c2 Qc4 f3+ Kh1 f4 Rg2 f2 Bd3 f1B Rd2 a2 Na3 f3 Ne2 g2+ Kh2 g1N Kg3 f2 Kf4 g3 Qb3 Na6 b8R g2 b7 Nf6 Kg5 Nh7+ Kg6 Bg4 Nf4 Nb4 Rb1 Be7 Kg7 Qb6 Rf8 a1Q Qc3 Ra5 b8Q+ Qc7 Rb3 Nf3 Re8 Bd8+ Re7 g1B Rd1 Rf8 Qd2 Rb5 Qe3 Rf5 Kh8 Bg2 Rd2 f1B Rc3 Nhg5 Rh7 Rb6 Rh4 Bh1 Rb3 Nh7 e5+ Kd7 d6 Qcc3 d5 Nfg5 Be4 Bd3 Nc4 Rb7 Na5 Bb6 Ra3 Qb3 Qf8 Bf1 Rd4 Bd3 Bd2 c1Q Qf6 Bc4 Bb1 Qe1 Bc1 Bd3 Qg6 Rc7 Qh6 Rc2 Qf6 Rb2 e6+ Ke8 e7 Kd7 e8R Re5 Qh6 Bg6 Re6 Kc8 d7+ Kc7 Re7 Kd6 d8N Bf2 Qe2 Bg1 Rd2 Bgd4 Qe3 Bdc5 Rd4 Re4 Rb7 Ke5 Nf7+ Kf5 Rd3 Re5 Re7 B6h5 Qd6 Bg6 Qg1 Ke4 Rd4+ Kf3 Nh6 Rc2 Ne6 Rb2 Qe3+ Kg2 Nf4+ Kh2 Qe4 Qa4 Rf3 Qb3 Qd3 Qaa4 Qe3 Qc6 Qc7 Qe6 Qd6 Qf6+
6r1/2B1nb2/Bbrr3b/2Pq1bRq/1R5Q/N2bP1K1/1Rq1kn2/QN4BR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 c4 Kf6 b4 Ke5 h4 Ke4 h6 a5 b6 f5 h5 d5 b7 g5 h7 d3 b5 d2 b6 f3 h6 a4 Nh3 g4 Ra2 f4 Ra1 d4 Bb2 g3+ Kg1 Ke3 Qc2 d1Q Nd2 g2 Kh2 d3 Rc1 f2 Be5 g1B+ Kg2 a3 Ne4 d2 Nhg5 a2 Nf3 a1Q Qb1 Bf5 Nc3 Nc6 b8R Nf6 b7 Qa2 Nd4 Qac2 Ndb5 Ng4 Na3 Ra6 Bc7 Rg8 h8B Ne7 h7 Rc6 Qa1 f3+ Kh3 Qd4 Ncb1 Qdd3 Bf6 Bg7 h8Q Qd8 Bg2 f1B Qh4 f2 Bfe5 Bh6 Bh2 Qcd3 Rc2 Qe8 Rc1 Qh5 Rc3 Qc2 Rb3 d1R Rb2 Be6 Kg3 Bf7 Rd8 Qdb3 b8R Rd5 Bf3 Bh3 Rb4 f1B Bg2 Rd4 Rd5 Qa2 Rg5 Rdd6 Bd5 Qab3 Be6 Qbd3 Bc8 Qd5 Nc3 Kd2 Ba6 Bb6 c5 Nf2 e3 Bd3 Ncb1+ Ke2 Bg1 Bf5
5Qqq/2r3b1/rR1n1P2/b1NPbr1Q/2QBbk2/3B1B2/K4bR1/1Nq1B1n1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc3+ e3 Kb3 e5 b6 a5 d6 c5 d5 h5 b7 c4+ Ka3 a4 b4 e4 b5 h3 f3 c3 b6 c2 Ne2 h2 Bb2 c1R Bg2 h4 Bh3 Bf5 Ka2 a3 d7 Nh6 Qc2 Nf7 Bg2 h3 Qc4 Ra6 Nd4 e2 Nb3 e1B Bd4 e3 Nc5 e2 Rg1 Nc6 b8Q h1Q b7 h2 Qe5 Bg7 b8Q Qg8 Qf8 Ba5 Qee8 e1B d8B+ Kf4 g5 Be4 g6 Rh7 Bh4 Rh5 Bhf2 Be5 g7 Rf5 Bh4 Nd6 Qh5 Qe6 g8B Bf2 Bh7 Qg8 Bg6 Bg7 Bh7 Ne5 Bg6 Be3 Be1 Bf2 Bh3 Rc3 Rg2 Qf1 Bg4 h1Q Nd2 Qh3 Rb1 Rc1 Rb6 Qh4 Kb3 a2 Nb1 a1B Ka2 Qf6 Be8 Qh6 Ba4 Qhh8 Bc2 Nef7 Bd3 Ng5 Bf6 Nh3 Be5+ Ke3 f4 Ng1 Bf6 Be5 Bf3 Rg5 f5 Kf4 Bd8 Rc3 f6 Rf5 Bc7 Rc1 Bb8 Rc3 Ba7 Rc1 Bc3 Qd1 Be1 Rc3 Qa4 Qc1 Qc4 Rc2+ Rb2 Qd2 Nb7 Nf7 Qa4 Nd8 Bd4 Rc7 Qc4 Nf7 Nc5 Qc1 Rb6 Nd6
6kb/1Q2QR2/b1RPRP1q/2r1rn1N/5n2/B1b4q/2K2QBb/qn2RN1b w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 c5 Kd2 e5 f4 a5 b4 h5 g5 h3 d6 h4 f5 a4 d5 a3 d7 e3+ Kc3 a2 b6 e4 d6 e2 f6 e1B+ Kc2 h2 b5 e3 b7 c4 b6 c3 Ba6 e2 Bb2 h3 Bb5 Nh6 g6+ Kg8 g7 Ra5 Nf3 Nc6 b8R Ne5 b7 Nc4 Nbd2 Nf5 Rb1 a1Q Ng5 Rh5 Nf1 Nd2 Ne4 Bg3 Bc6 e1B Qe2 Rc5 Rc1 Nb1 Qf2 Bd2 Rg1 h1Q Ba3 Bh2 Neg3 Qc7 d8R Qd7 Re8 Be1 Re6 Bd2 Kb3 c2 Bg2 Bc3 Rce1 c1N+ Kc2 Rg5 Nh5 Ne2 Ra8 Nf4 b8Q Ba6 Qb7 Nh4 Rd8 Rge5 Rc8 Nf5 Rc7 Qf7 Rc6 Qg6 Re7 Qh6 Rf7 Bg3 Re3 h2 Qe7 Red5 Re6 Re5 Bh3 Qf3 Bg2 h1B Qb7 Bh2 Qe7 Qh3 Qb7 Qh8 Qe7 Kh7 g8Q+ Kh6 Qgg3 Ba5+ Qc3 Bg7 Nd2 Kh7 Re1 Kg8 Nf1 Qh6 Qc4 Bc3 Qb5 Bh8 Qb3 Ra5 Qbb7 Rac5
2N3qn/3BBb2/1P1r1P1k/2KR1Rr1/n1b2qBb/2bQ1B2/b1Q1r3/5NNq w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kg7 Kc4 a5 f4 e5 g4 d5+ Kd3 h5 b4 h3 c4 h4 c5 a4 f6+ Kh6 c6 e4+ Ke2 e3 Kd3 h2 f5 h3 f7 a3 c7 a2 b6 Ra5 b7 Ne7 f6 Nbc6 b8N Ng6 b5 Be6 c8B Nb4+ Ke2 d3+ Kf3 d4 Ke4 d2 b6 d3 Bg2 e2 Ba3 e1B Qa4 d1R Qc2 d2 Nc6 Nd3 Bd6 Rg5 Kd4 Bc4 Na7 Nb2 Bf3 Bh4 Bd7 Rh7 Qd3 Nh8 Nc8 Rhg7 Ba3 Bb4 f8Q Qc7 Qc5 Re7 Qcf5 Re2 Qc5 Bf7 Qcc2 Ba5 Be7 Qd8 Na3 Qg8 Nc4 Bb4 Rb1 a1Q Ne3 Qa4 Nf1 Bc4 Bf5 Ba5 Kc5 Bc3 Ra1 Bf7 Ra3 Qf4 Ra5 Ra1 Rb5 d1B Ra5 Ra4 Rb5 Rd4 Ra5 Rg6 Bd7 Rd6 g5+ Kh7 Qc1 Bdb3 Qcc2 Ba2 Bdg4 Qe4 Rb5 Rg7 g6+ Kh6 Bd7 Qf4 Bfg4 Rh7 g7 Bac4 Nf3 Ba2 Rg1 h1Q Rg3 h2 Ng1 Qf8 g8B Rg7 Re3 Rg5+ Re5 Bac4 Bh7 Qg8 Rf5 Qg2 Re5 h1B Be4 Ba2 Rf5 Qgh2 Rb4 Bf3 Rc4 Qh1 Rd4 Bfc4 Bec6 Bfd5 Ba8 Be6 Baf3 Bf7 Rdd5 Na4+
Q4qn1/4k1B1/PK1R1q1r/1Rq5/b2n1Bb1/N1b5/1RP2bbr/1BNQB1n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 Kd3 d5 f4 b5 a4 g5 h4 g4 h6 b3 f6 b2 f5 e4+ Kd2 b4 h5 g3 f7+ Ke7 h7 b3 h6 d3 Kc3 g2 Kb4 e3 Kc5 e2 a5 e1B a6 d2 Ra5 d4 Qf3 d1B Na3 b1Q Bf4 b2 Rb5 d3 Ne2 g1N Nc1 d2 Bc4 Bd7 Ba2 Qa1 Bb1 Bg7 f8R Bc3 Rf6 Nc6 Rd6 Qf8 Kb6 Nd4 Rh5 Bf2 f6+ Kf7 Rb3 Ba4 Rhb5 Be2 Qg4 Bf1 Qd1 Bg2 R3b4 Ke8 f7+ Ke7 Rb3 Rc8 R3b4 Rc5 Rb3 Rh5 R3b4 Qc8 Rb3 Rh2 f8B+ Kf7 Be7 Qf8 Bh4 Ke8 Bhg3 Ke7 R3b4 Be3 Be1 Bf2 Ba2 b1Q Rb3 Qbb2 Bb1 Qba2 Rb2 Qb3 Qf3 d1B Qd3 Bg4 Qd2 Nf6 Qd1 Rg8 h8Q Qc4 h7 Rg6 Qg8 Rgh6 h8B Qcc8 Qd5 Ng8 Qa8 Qcf5 Bg7 Q5f6 Ra5 Qa2 Rc5 Qd5 Rcb5 Qc5+
bQqq2R1/2R1B1rk/PK2n3/4P1bb/3n1r2/1q1r1QR1/4NbB1/RN1B1b2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 b5 a4 c5 g4 h5 d4 f5 e4 Kf7 e5 Kg6 a5 b3 a6 h4 d6 h3 d5 b2 d7 h2 d6 b4 Qa4 f3 Ke3 f2 Qc6 f4+ Ke4 c4 Kd4 b3 Kc5 f3 Nd2 b1Q Ne2 c3 Kb5 c2 Qc4 b2 Bh3 f1R Ra2 f2 Ra1 Nf6 Bg2 Nh7 Qd5 Rg8 Rg1 h1B Qf3 Rg7 Kc5 Qa2 Nb1 Qb3 Bd2 c1B Bb4 Ra7 Kb5 Rc7 Kb6 Qc4 Ba3 Nc6 Bc5 Nd4 Ba3 Qf6 d8Q Rcd7 Bb4 Bb7 Qb8 Qc8 Bc5 Ba8 Ba3 Kf7 g6+ Kg8 g5 Be3 Bc5 Be7 Bb4 Nf8 Bc5 Rf7 g7 Kh7 g8R Nfe6 Bb4 Rd8 d7 Rg7 Bd6 Rf8 d8R Rd1 Ba3 f1B Rd7 Rd3 Rc7 Bf2 Bb4 Bd8 Ba3 Qe7 Bc5 Rf4 g6+ Kh6 Bd6 Qf8 Bc5 Bg5 Ba3 Qfd8 Be7 Rgf7 g7 Kh7 Bh3 Bhg2 Bg4 Bh3 Bh5 Bf5 Rg3 Bg6 Bg4 Bh5 Bh3 Qdd7 Bg2 Qd5 Re8 Qdd8 g8B+ Kg6 Rf8 Rg7 Bf7+ Kh6 Rg8 Kh7 Be8 Rd2 Ba4 Rd3 Nd2 b1Q+ Bb3 Qa2 Nb1 Qa4 Bd1 Qb3+
NrQQ2R1/N1RBn1bP/q3Qb2/1nB3r1/1P3nb1/1Q1nK2k/nB5q/5q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 b6 a4 b7 a3 d6 Ke6 d7 g3+ Ke3 f2 h5 g4 h6 g2 h7 a2 Bb5 f1Q Be2 f4+ Ke4 f3 Kf4 c4 Qc2 c3 Qb2 c2 Bb5 g3 Ne2 g1N Nd2 f2 Nc3 g2 Nc4 Ne2+ Ke3 Kf5 d5 Kg4 e6 g1N d6 Qc7 d8B Na6 b8Q Nc5 d7 Ne7 Nb6 Nf3 Qb3 Qh2 Rg1+ Kh3 Bb2 c1N Rg8 Ra5 Na8 Nfd4 Bb6 Bg7 d8Q N5d3 Bd7 Nb5 Bc5 Nef4 Rb1 a1B Qbc7 Ba6 Qcc8 Na2 Rc1 Bb7 Rc2 Bf3 Rc1 Bg4 Rc2 Nc6 e7 Bf6 e8Q Ne7 Ne2 Bg7 Nd4 Bf6 Nc6 Bg7 Bc1 Baf6 Bb2 Qa1 Na7 f1Q Rd2 Qac1 Qg6 Qc4 Rc2 Qe6+ Qe4 Qa6 Qee6 Nc7 Bd6 Rg5 Rc4 Nb5 Rc7 Ne5 Bc5 Ned3 Rf8 Rg8 Re8 Rh8 Rg8 Qa5 Qb8 Kg3 Qf8 Bh6 Rg6 Qa6 Qfe8 Rf8 Rg8 Kh3 Qb7 Bhg7 Qbb8 Neg6 Q8e7 Rc8 Qd8 Ne7 Qb7 Rb8 Qbc8 Qb6 Qa3 Qc6 Qab3 Qa6
b1Q1Bq1r/K1BB1P1r/q2NnR1Q/2Br1Q2/1R2P1N1/k4bn1/8/bqr3r1 w - - 0 1 illegal: No proof kernel
2r1b1Qb/1B1kP3/q1Rb3b/r5RQ/2R2QR1/q3q1Kn/1B4P1/nbNN2n1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 e4 h5 d4 a5 b4 c5 d6 h3 b6 f3 b7 a4 b5 h2 b6 c4 d5 a3 e5 a2 e6 c3 Kg3 c2 Bh6 c1B Nd2 f4+ Kh3 h4 Bd3 f2 Qe1 f1B Be2 f3 Qg3 f2 Nb1 Nf6 Bf4 Ra5 Qf3 Nh7 Be5 Nc6 b8R Qg5 b7 Qe3 Ba6 Nb4 Ne2 Nc2 Bb2 Ng5+ Kg4 h3 d7+ Ke7 d8R Bd7 Nbc3 Be8 Rd6 Rg8 Rb1 a1B Nd1 Rh8 Qf4 Nf3 Kg3 Bh6 Rg1 h1Q Rc6 h2 Qe5 Bd2 Qh5 Bb4 Nc1 Bd3 Rf1 Bf5 Rbc8 Bc5 Re1 f1Q b8Q Ba3 Qf4 Bd6 Bb7 Qa6 Rc4 Qa3 Re3 Qg1 Ree4 Qge3 R8c6 Kd8 e7+ Kd7 Re5 Be4 Rg5 h1N+ Kh3 Nf2+ Kg3 Nh3 Rg4 Bb8 d6 Rg8 Bh8 Be5 Rb5 Na1 Rd5 Bc3 Rdg5 Bb1 Bd4 Beg6 Bg7 Rc8 Bf6 Be8 Bh8 Ke6 d7+ Bd6 d8Q Bf6 Qc7 Bc3 Qb8 Kd7 Bd4 Bd2 Bb2 Bc3 Qa7 Bce5 Qc5 Beg7 Qd5 Bh8 Qg8 Nfg1+
4k2r/1N2P1Bb/5Q2/6bP/R1Qnb2r/2R2nqn/BnK1Q1Q1/N1nB2rq w - - 0 1 illegal: No possible last move
b1KQ3b/q1R1P3/B2P4/bR1q2r1/Nnr4k/N1n3N1/3brN1q/2Q1B1Bb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 b4 c5 g4 f5 e4 h5 d4 a4 d6 h3 b6 h2 d5 h4 b5 c4 b7 c3 d7 c2 Ke6 h3 e5 a3 b6 a2 Bb2 c1B Ba3 f3 Bb4 f4 Na3 f2 Ne2 f3 Be1 Bd2 Qc1 Ne7 Ng3 Rg8 Rb1 a1B Ba6 f1R Rb5 Kh4 g5 f2 g6 Nbc6 b8N Bb7 g7 Nb4 Kd6 Ra7 e6 Ba8 b7 Bb2 Rg1 h1B Rg2 Qa5 d8Q h2 Nd7 Qa4 b8B Rc7 Rg1 Rc4 Nc5 Ba1 Kd7 Bac3 Bb7 Qa7 Na4 Bd4 Be5 Bb6 d6 Ba5 Rg2 Rg1 Ba1 f1Q Bd4 Qf5 Rf2 Qg5 Rf7 Rg2 Bg1 Ned5 Re7 Re2 Rf7 Rh8 g8N Nc3 Nh6 Rg8 Ng4 Bg7 Nf2 Bh8 Re7 Qh5 Rh7+ Rg5 Rg7 Rd4 Kc8 Rc4+ Rc7 Qf3 e7 Qd5 Qb1 Be4 Qd1 h1Q Qc1 Qh2 Ba6 Bh1
2N1b1r1/QnP2b1R/B3RBrb/1r1K1QN1/1b5k/3nq2b/2PBq2N/1B1n4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 b4 d5+ Ke5 h5 e4 a5 g4 f5 c6 h3 b6 a4 b7 h4 c7 h2 b5 h3 b6 d4 Ra3 d3 Nd2 f3 Nb3+ f4 Na5 d2 Bd3 f2 Nc6 f1B Bb5 f3 Na7 f2 Bb2 Nf6 Re3 a3 Ba6 a2 Qf3 a1B Qf5+ Kh4 g5 d1N g6 Be6 g7 Rg8 Nc8 Ne8 Re1 Bd7 Kd5 Qg5 e5 Bb4 e6 Nc6 b8Q Qe3 e7 Ne5 b7 Nd6 e8N Nd3 Qa7 Rb8 Nf6 Be8 Ne4 Bg2 Bc1 f1Q Bd2 Be5 Re2 Bf4 Re1 Bh6 Re2 Ra8 b8B Nb7 Re1 Qff2 Re2 Bf1 Re1 Qfe2 Ng5 Rf8 g8B Rf6 Bf7 Rg6 N1f3+ Kh5 Rg1 h1R Nh2 Kh4 Rg3 Rg1 Rf3 Rg4 Rf4 Rg8 Re4 Rg6 Re7 Re4 Bg8 Ree6 Rh7 Rb6 Be6 Rb5+ Qc5 Rb6 Ba7 Rb8 Qa5 Rg8 Bf7 Rbg6 Be6 Bf7 Bd4 Be8 Bf6 Bf7 Ng4 h2 Qc5 Be8 Qa7 h1B+ Qf3 Bhg2 Nh2 Bh3 Qf5 Bf7 Kc6 Bg4 Ba2 Bh5 Bb1 Be8+ Kd5 Bh3 Qf3 Nbc5 Qf1 Rb5 Qf5 Nb7+ Kc4 Q3f2 Nd6 R6g7 Rf1 Qef3 Re1 Bhf7+ Re6 Rg6 Nc8 Q2e2 Kd4 Qfe3+ Kc4 Rb6 Kd5 Rb5+
5nqK/NQPQr3/3RBR1Q/bq1q1rB1/P3N3/k1r5/5Qbq/b2R1q1n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 b5 Kd3 d5 h4 Kd7 a4 Kc6 f4 Kc5 c4 e5 h6 g5 h5 e4+ Ke2 d3+ Ke3 d2 h7 b3 f6 Kb4 Kd4 g4 Ke5 e3 f7 g3 h6 e2 f5 e1B c5 b2 c6 d4 f6 d3 c7 g2 Rh5 Bh3 Nc3 b1Q Nge2 g1Q Rg5 Ra5 Bb2 Qh2+ Ng3 Ne7 Rg8 Nf5 Bc1 Bg2 Rg6 Bg7 f8R Nd7+ Ke6 Qb8 Nge4 Ng3 Kf7 Nh1 Be2 Rg8 h8Q Qa8 Rd8 Re8 h7 Nf8 Kg8 Re7 f7 Qb3 Rgd6 Qad5 Bg4 Qbc4 Qf3 d1R Rf6 d2 Be6 Kb3 Rd7 b4 Rd6 Rc5 Qg4 Qf1 Nb5 Rc3 Rb1+ Ka2 Qf5 b3 Na7 b2 Qf2 Ka3 Qf5 Ng6 f8Q Qa2 Qa8 Nf8 Qb7 Qf3 Bb3 Rc2 Qf4 Re6 Ra1 Qf1 Rf5 Rc5 Rf7 Rf5 Qf2 Be5 Qg7 Qb5 h8Q Bc3 Qgd4 Re7 Rff6 Qf1 Rde6 Ba5 Qg1 Bg3 Qd3 Be5 Qf2 Re1 Qdd5 d1Q Qd7 Re3 Qh6 Bec3 Bd2 b1Q Rd6 Ref3 Bd5 Qbb5 Bg5 Qdd3 Rb1 Ba1 Kh8 Qdc4 Bg8 Rc3 Re1 Qf7 Red1 Qg6 Bf7 Qad5 Be6 Qg8+
1B1n3N/2B2b1n/4B2Q/nq6/1kNRR1rP/rq2qPbK/r2b2n1/1R1Q3R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 Kd7 h4 Kd6 b4 g5 f3 a5 Kf2 c5 Kg3 e5 b6 a4 b5 e3 b7 e4 b6 c4 Ne2 a3 Rg1 a2 Na3 c3 Kh2 g3+ Kg2 g4 Qb3 c2 Qc4 Qe8 Qc3 Nf6 Bd2 c1Q Rb1 a1N Rb3 Qb1 Qc4 Nc6 b8R Nd8 b7 Qb5 Qc3 Be6 Rc8 Bf7 Rh1 Nh7 Qc1 Bh6 Nf4 e2 Rc4 e1B Ng6 e3 Ba5 e2 Bb6 Rf8 Nh8 Bhd2 Ra4 Qa2 Rb1 Nb3 Rc4 Na5 b8B+ Kd7 d6 Qab3 d5 Rg8 Kg1 g2 Kh2 g1R Re4 g3+ Kh3 g2 B6c7 Bg3 Nc4 e1N Bd3 Rg4 Qd1 Kc8 d7+ Kb7 d6 Kc6 Bc2 Kc5 Qc1 Qb2 Bb3 Kb4 Ba2 Qb3 Qd1 Ndc6 d8Q Ra6 Qg5 Nd8 d7 Rf1 Re3 g1Q Qh6 Ng2 Re1 Rf2 Re4 Ndc6 d8R Ra8 Rd3 Nd8 Rdd4 Qe1 Qf6 Qe3 Qe6 Nac6 Qg6 Ra3 Qh6 Na5 Re6 Bc1 Nb2+ Q3c4 Ree4 Rc2 Bb3 Bd2 Ba2 Kc5 Bb3 Qcc3 Be6 Qcb3 Nc4 Kb4 Qg1 Rb2 Qd1 Rba2
2Nn4/Q2NN3/1Rrb4/1bnb1B2/2N3P1/1R2rk1K/P1qqnrqQ/5qBB w - - 0 1 illegal: No possible last move
1rb1QRqB/Bnq3n1/1K3b1Q/1Q4Rr/3PBn1k/Nb4r1/r2P3q/1B5N w - - 0 1 legal: proof: h4 d5 f4 b5 a4 g5 axb5 gxh4 c3 d4 cxd4 e5 Rh3 exf4 Rh2 Ba3 Rh1 Bf8 Kf2 Ke7 e4 Kf6 b4 Kg5 g4 h5 e5 f5 e6 c5 b6 a5 b5 c4 e7 f3 Ke3 c3 e8Q h3 b7 h2 b6 f2 Kd3 h4 Kc4 c2 Kb5 h3 Qe7+ Nf6 Bc4 f1R Ba3 c1Q Qh7 a4 Be2 f4 Qg6+ Kh4 g5 f3 Qe1+ f2 Qe8 Be7 g6 Nbd7 b8Q Qcc7 g7 Nd5 g8B Rh5 b7 Nc5 Bh7 Nf4 Bf3 Bf6 Ne2 Rg1 Ng3 f1N Q1e6 Ne3 Bfe4 Nf5 Ra2 Rg2 Rg1 Ng7 Nh1 Rg3 Bb4 Qd5 Na3 Qb3 Qa6 Qg8 Rf1 Qcf7 Qbe5 Qc7 b8B Nb7 Ba7 Rb8 Be7 Rc3 Ng3 h1Q Bb1 h2 Bhe4 Qg1 Nh1 Rg3 Rc2 Qf2 Rc5 Qg2 Qee6 Qf2 Rg5 Qg2 Nf2 h1B Bd6 Qh3 Be5 Qh2 Qab6 Bf3 Nh1 Bd1 Ka6 Bb3 Qbb5 Be7 Qh6 Bf6 Nc2 a3 Rf2 a2 Na3 Qd7 Kb6 a1R Rf1 Ra2 Rf3 Be7 Rf1 Nf5 Bh8 Bf6 Rc1 Qdf7 Rc5 Ng7 Rcf5 Be5 Rf6 Qe7 Rf7 Bf6 Rf8 Qc7+
krn2Kb1/2bQ2Nr/1B3NqR/r2Pq3/5P1q/B1bn2R1/2QBN3/n2B1q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 Kc7 g4 Kb7 d4 h5 f4 a4 b4 c4 g5 a3 b6 a2 d6 e3 d5 c3 g6 h3 b5 c2 g7 h4 d7 h2 Ke6 e2 Kf7 e1Q Nc3 e5 Qf3 h3 Ba3 c1Q Qe4 Na6 Nf3 Qb1 Nd4 Nc5 Nce2 Bd6 Nf5 Ne7 g8N Nd3 Ng7 Ra5 Nf6 Bc7 Bb4 Qh4 Bd2 Ka8 Qg2 e4 b7+ Kb8 Rg1 h1Q Qg4 h2 Rg3 Ka7 b8B+ Ka8 b6 e3 Qf5 Qg1 Ba7 h1R Bg2 Qbf1 Bf3 Qgg2 Rc1 a1N Rc6 Rh7 Re6 Qh8 d8Q Rh2 Qd7 Qgg1 Qe4 Rg2 Qea4 Rf2 Qc2 Rg2 Nc3 e2 Rd6 e1B Bd1 Re2 Rc6 Re4 Ne2 Rb4 Re6 Ng8 Kf8 Ne7+ Ng8 Qgg2 Rh6 Qe4 Ne6 Qhd4 Nf6 Qg6 Ng7 Qe5 Bb8 Bd8 Bd6 Bc7 Bc5 Rb1 Ba3 Rb3 Qa4 Be6 Qd7 Nc8 b7+ Ka7 b8B+ Ka8 Ba7 Rb8 Bb6 Bg8 Bdc1 Bc3 Bce3 Bd8 Bd2 Bc7
q2q1n2/1Brb1K2/1PN1q1Pb/3Q1n2/2NBr3/3R1rk1/1Q1RR1N1/bN2n1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 f5+ Kd3 f3 Kc4 a4 e4 h3 b6 f4 b5 h2 b7 h4 b6 a3 g5 a2 g6 f2 Qe2 f3 Qe1 h3 Qd2 Bh6 Ne2 Ra7 Qb2 Bd7 Bg2 f1R Nf4 f2 Be3 Ne7 Bf3 Re1 Ng2 f1N Bf2 Nf5 e5+ Ke7 d6+ Ke6 Rg1 h1Q Be3 h2 Bc6 Bc8 d7 Rf8 Bf2 Re4 Bd5+ Ke7 e6 Kf6 e7 Kg5 e8N Kg4 Nd6 Rf7 Bc6 Nd2+ Kd5 c4 Rd1 c3 Nc4 Nf3 Rd2 c2 Rd3 c1B Bg1 Qg5 d8Q Nd7 b8N Kg3 Bb7 Be3 Nc6 Ne1 Qg8 Qd8 Rd2 Rg4 Ke6 Bf2 d5 Re4+ N4e5 Ra3 d6 Rf3 Re2 Bc5 Bd4 Qg1 Rd2 h1Q Re2 Qe3 Rd2 Nf6+ d7 Nh7 Re2 Qh3 Rd2 Qa3 Rd3 Qa8 Rd2 Rf8 Re2 Re8+ Kf7 Nf8 Nc4 R8e5 Nbd2 Qg4 Rd1 a1B Nb1 Re6 Rd3 Re7+ Kf6 Qh3 Qd5 Qg4 Bc3 Bg1 Bd4 Qe8 d8R Rc7 Rd7 Qd8+ Kf7 Qh3 Re7 Bd7 Red2 Rh4 Ree2 Re4 Nca3 Qhh4 Nc4 Qhf6+ Kg8 Qe5 Kf7 Qe6+
1QB1b2b/1Nn2PBr/3Q4/1krb1nK1/1N1b1N2/qrq3P1/R4Q2/2n1Qq1R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 e5 b4 h5 f4 a5 d4 c5 g3 c4 d6 h3 f5 a4 d5 c3 b6 a3 f6 a2 b5 c2 f7 h2 b7 h4 b6 h3 Bd3 Ne7 Nd2 Ra3 Qf1 Rh5 Ne2 Nf5+ Kf2 e3+ Kf3 e4+ Kf4 Qe7 Kg4 Na6 b8Q Bg7 b7 Nc7 Bb2 c1N Qg1 Bd4 Nf3 Rb3 Nf4 e2 Qa7 e1Q b8Q e3 Ba6 Qf1 Ne1 e2 Ned3 e1Q Nb4 Qc3 Qab6 Bh8 Qbf2 Bb7 Qe1 Bc6 Qgf2 Qee3 Bb7 Rh7 Kg5 Bd4 Rg1 h1B Ba6 Be4 Rh1 h2 Bb7 Bh8 Ba6 Qa7 Bb7 Qa3 Bc8+ Kd8 d7 Bd4 Rg1 h1R Rg2 Ke7 d8N Be8 Nb7 R1h6 Rg1 Rc6 Rh1 Rc5 d6+ Kf8 d7 Bd5 Rb1 a1B d8Q Bh8 Qd7 Bd4 Qc6 Bh8 Ne6+ Ke7 Nf4+ Qe3 Be5 Bd4 Rb2 Qc3 Qa6 Qb5 Ra2 Qf1 Na5 Kd8 Qd3 Ke7 Bg7+ Kd6 Qa6+ Rc6 Qd3 Kc5 Nb7+ Kb6 Qdd2 Kb5 Qdd1 Be3 Qd4 Rc5 Qe5 Bd4 Qe6 Qg2 Qd6 Qf1
n6r/1RN1bPk1/Qq6/r3n2n/Q2RBqNr/B1PQ2q1/2bQ1b2/2K1N2r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 d5 f4 e5 b4 h5 f6 a5 c3 a4 f5 d3 b6 d4 g5 e4 b5 h3 b7 h2 b6 a3 Qa4 e3+ Kd1 h4 Nf3 e2+ Kd2 e1B+ Kd1 h3 Bg2 a2 Ba3 Ra5 Kc1 Nd7 b8Q Ne5 b7 Qb6 Qd6 Be7 b8Q Bf2 Rd1 h1R Qa8 h2 g6+ Kf8 f7 Kg7 f8N Nf6 Nh7 Nh5 Nf6 Bb7 Ng4 d2+ Kc2 Bd5 Qa6 Bb3+ Kb2 d3 f6+ Kg8 f7+ Kg7 Qd5 Bc2+ Qdb5 Re8 Ne1 Rh8 Rc1 d1Q Be4 Qd2 Rd1 Qh6 Rd2 Qf4 Kc1 Rg1 Qd7 h1R Qdd4 Rh4 Qe3 Bb3 Rb2 Bc2 Qd2 Rgh1 Rb4 Be3 Rd4 Qg3 Bc5 Qf4 Na3 Bf2 Rb1 a1Q Nb5 Qa2 Bd6 Qd5 Bb4 Qdd6 Ba3 Qg3 Nc7 Qf6 Rbb4 Qff4 Qe3 Qbf6 Rb7 d2+ Kb2 d1N+ Kc1 Qe6 Qd2 Ne3 Qdd3 N3c4+ Qd2 Nb6 Qd3 Kf8 Qa6 Na8 Qd3 Bc5 g7+ Ke7 g8Q Qb6 Qg6 Kf8 Qe6 Kg7 Qec4 Bd6 Qa6 Be7
6B1/qkqP3Q/1n1bbR2/R1Rrn1B1/r6n/5PRN/1bK5/Qn2qrNN w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 c5 d4 Kc7 Kd2 h5 d6+ Kb7 f3 e5 g5 a5 d5 e3+ Kc2 e2 d7 e1N+ Kb3 c4+ Kc3 a4 b6 e4 d6 a3 g6 h3 g7 h4 b5 e3 Rh2 a2 Rb2 h2 Be2 h1N Bd2 h3 Rc2 Ne7 g8R h2 Rg3 Nf5 Bc1 Qe7 Nd2 Ra4 Ne4 Rh5 Nf2 Nh4 Qd3 Rd5 Qh7 Nd3 d8N+ Ka8 Bf1 e2 Ne6 Nd7 Bg5 N3e5 Nf4 Kb7 N4h3 e1Q+ Kb2 c3+ Kb3 Nc6 Bc4 Nce5 Rcc1 Qd8 Kc2 Qc7 Bb3 Rc5 Bg8 Rd5 Rg4 Ng3 Nh1 Ne4 Rg3 Kb8 b7 Nb6 Be6 Be7 Bg8 Be6 d7 Ka7 b8R Nd2 Ra8+ Kb7 Ra5 Bd6 Rab1 a1Q Rb3 Nc8 b6 Nb1 Rb4 Qa3 Rf4 Qac5 Rf6 Qcf2+ Kb3 c2 Kb2 Qff1 Kb3 Qa6 Kb2 Qa7 Kb3 Kc6 b7 Nb6 b8Q Na8 Qf8 Kb7 Qfg7 Nb6 Rd1 c1B Rd4 Qd8 Rc4 Qc7 Kc2 Bb2 Rcc5 Nd2 N1f2 h1R Qgh8 Rh2 Nh1 Rf2 Qe4 Rf1 Qhh7 Qe3 Qd4 Qe1 Qc3 Nb1 Qa3 Qc6 Qa1 Qc7
3n1rrB/R3n1n1/1b1B3N/2PB4/K2Nbn2/RRQ4n/1PQqnkbr/1R6 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 c4 Ke5 Kc2 Ke4 Kb3 d5 f4 a5 b6 e5 f6 h5 g5 h3 b7 h2 g6 d3 f5 d4 f7 d2 g7 Ke3 f6 a4+ Kc2 h4 Nh3 e4 Qg4 d3+ Kc3 a3 Kb3 a2 Ng5 h3 Qh5 Ne7 g8Q Bf5 Nh7 Kf2 Qhg5 d1N Qh6 d2 Qhg5 e3 Q5g7 e2 Na3 e1N Nb5 Ne3 Ng5 d1N Bd2 N1g2 Nd4 Be4 Bc3 N3f5 Q8h7 Nf4 Bg2 Nbc6 b8R Rg8 Rg1 h1B c5 h2 Rb6 Rc8 Ka4 Qd7 Qgh8 Ng7 Rb3 Rd8 Rb1 a1N Bf3 Nc2 Rg3 Bg2 Rh3 Bf5 Bd5 h1R Re3 Rh2 Ra3 Nc8 Qg6 Bd6 f8B Be5 f7 Bfe4 Bd6 N8e7 f8R Bf6 Rf7 Rdf8 Ngf3 Bh4 Nf5 N2d4 Nh6 Nde2 Bce5 Bf6 Reb3 Bh4 Nd4 Nd8+ Kb4 Ndc3 Bf6 Nh3 Ka5 Nef4 Qgh7 Bef3 Qc2+ Nce2 Kb4 Be4 Ka5 Qg4 Ka4 Qf3 Bfe5 Qc3 Bf6 Qd2 Bfe5 Nc8 Ra7 Ne7 Qh7 Ne8 Bh8 Ng7 Qc4 Bf6 Qc3 Be5 Bb8 Bc7 Qf5 Bb6 Bd6 Bef3 Qfc2 Be4
1rk3Nb/R1n1r1r1/1Qb2B2/P2BQ1Qb/1bNR4/Nn3K1q/2nb2P1/3N1b2 w - - 0 1 illegal: No possible last move
1Q2bqN1/8/n1qRnrKB/1qb1RQ2/2r3P1/3Q1BNQ/6PB/kq2qq1q w - - 0 1 legal: proof: f4 b5 d4 g5 a4 c5 axb5 cxd4 h3 g4 hxg4 e5 Ra6 exf4 Ra2 Nf6 Ra1 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 a5 b4 h5 c4 d5+ Kf3 Ke5 e4 f5 c5 a4 c6 a3 b6 d3 b5 Kd4 c7 a2 b7 d2 e5 h4 e6 h3 e7 h2 e8Q Nf6 b6 Nh5 Qc2 d1Q+ Qce2 Rh7 Nc3 Ra4 Bb2 Rf7 Ba3 Qc2 Ne4 Ng7 Bc1 Ne6 Nf2 Kc3 Nfh3 d4 Ng5 d3 Nh7 d2 Nf6 d1Q Ng8 Bd7 c8Q+ Rc4 Qe7 Na6 b8Q Qe8 b7 Qe1 Qh4 Bc5 Qh3 Qf8 Rb1 a1Q Rb6 Qaa4 Rd6 Be8 Qe4 Qca2 Be2 Qb1 Qd5 Kb3 Qd3+ Ka2 Bd1 Qab5 Ne2 Ka1 Ng3 Qa4 Rf1 h1Q Rf2 Qab5 Re2 Qc3 Qd7 Qf6 Re5 Qg6 Ke2 f3+ Kd2 f2 Bf3 f1Q Qdc8 Nd4 Ke3 Qe1+ Kf4 Qe6 Kg5 f4 Qd7 Qd5 Kg6 Qdc6 Q7f5 Ne6 Be2 f3 Bh6 f2 Bf3 f1Q Qa8 Qbd1 b8B Qc1 Bc7 Qcb1 Qb8 Bb4 Bb6 Ba3 Bg1 Bc5 Bh2 Rf6+
b1Q5/rBB4b/K2R1b1B/1R1Q1r1b/N2r1B2/1N1knrQP/2q2P2/n1b4r w - - 0 1 illegal: No possible last move
1B1BK2R/3Pb2b/7q/1k1N1R1Q/1r4B1/1n1Pnbn1/2N1nBbQ/1r2b1nR w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 h5 Kf5 a5 b4 h3 e4 c4 g4 h4 b6 c3 b7 h2 d6 Kc6+ d7 c2 g5 h3 g6 a4 e5 a3 g7 f3 e6 f2 e7 a2 e8R Ne7+ Kf6 Qb6 g8Q Nf5 Qg3 Be7+ Ke5 Nh4 Bg2+ Nf3+ Kf5 f1N Rg8 Ra4 Qf2 Ne3+ Kf4 f5 Na3 Na6 b8B Nc5 Ba7 Nb3 Ne2 Rh5 Bf1 Ng1 Ke5 f4+ Ke6 f3 Kf7 Rb5 Nc3 Bb7 Qfe2 f2 d3 Ba8 Rb1 a1B Nd5 Bc3 Rh8 Be1 Ke8 Qa6 Bb2 c1N Bf6 Qb6 Qh5 Nce2 Qd2 Qa6 Bg2 f1B Bf3 Bg2 Bg4 Rb7 Nc2 Kb5 Bh4 Qh6 Bb6 Be4 Bf2 Bh7 Bd8 Ra1 Rc1 Rb1 Rd1 Nf3 Rf1 h1B Rc1 h2 Rd1 Ka4 b5 Nfg1 b6 Bf3 Rc1 Rb8 b7 h1N Rd1 Kb5 Rc1 Rc8 b8B Rc4 Rd1 Rb4 Rc1 Nf5 Qf4 Ne3 Qfh2 Nhg3 Rd1 Nh3 Rh1 Nhg1 Rc1 Rb2 Ra1 Rb1 Ra6 Bg2 Rf6 Bc6 Rf5 Bc5 Nb6 Bcf3 Nd5 Be7
B1Q1Krnr/n7/1b2b1r1/n1R3qN/kn3Q2/BN2Q1nb/4PPB1/B1R4b w - - 0 1 illegal: No proof kernel
r2b1qNr/QqN4B/bn2n1N1/Qq1R3q/3B1R1B/2BPq1Pk/K7/1n1q4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Ke7 b4 Kf6 e5+ Kf5 b6 h5 g3 c5 e6 a5 d6 h3 b7 a4 e7 h2 e8N f3 d7 Kg4 b5 f5 b6 c4 Nc3 f4 Nc7 h4 Ra3 h3 Nce2 c3 Qb3 f2+ Kd1 f3 Kc2 Be7 Kb1 c2+ Ka2 Nc6 b8Q Nf6 b7 Nd4 Bb2 c1Q Qb4 Nd5 Nf4 Ne6 Bd3 f1N Nge2 f2 Nc3 Nb6 Qa7 Qf8 b8B Ba6 Ne4 Bd8 Bd4 Qe1 Rg1 h1Q Qa5 h2 Ng6 Qe3 Nf6+ Kh3 Ng8 Qb7 Bc2 h1Q Rd3 a3 Bb1 Nh2 Rf1 Nf3 Bc3 Qh2 Rd4 Qh1 Rf4 Qh2 Rd1 f1Q Bc2 Qb5 Be4 Bh4 d8B Qhe2 Bdf6 Qh5 Bfd4 Bd8 Bf6 Qeb5 Bh4 Rh6 d3 Nd2 Rdf1 Nb1 Rf5 Qe5 R1f4 Qb5 Rd5 Rh8 Ne8 Qfb4 Bbe5 Q4c5 Bed4 Qf8 Ka1 a2 Nc7 Qbc5 Kb2 a1Q+ Kb3 Qa4+ Kb2 Qad1 Ka2 Qhg4 Ne5 Qcc6 Bh7 Qh5 Ng6 Qb5
2Bb4/K2r1n1R/1BkrQn2/1bq4Q/Qn1BN2b/2nPP2B/3rNR1r/5n2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 f5 g4 c5 d6 h5 b6 a5 d3 c4 e3 a4 g5 c3 g6 a3 b7 f3 g7 h3 b5 c2 b6 h2 Nh3 a2 Qe1 f4 Nc3 h4 Ba3 c1N Na4 Ra6 Bc5 Kc6 d7 Rh7 Bd6 Be7 Rg1 h1R Qe2 Rh2+ Rg2 Nh6 g8B Qc7 d8B Nf7 Bc5 Bd7 Ng1 h3 Bd4 Qc8 Qd1 Ne2 Nc5 Nc3 Ne2 Bf6 Rb1 a1B Ne4 Bb2 Ke1 f2+ Kd2 f3 Bc7 Bh4 Qa4+ Kd5 Rc1 Nc6 b8Q Nb4 b7 Rd6 Bcb6 Qc5 Qc8 Bb5 Qe6+ Kc6 b8Q Ba1 Rg7 Bb2 Bg2 f1R Rc2 f2 Qd8 Ra1 Qg5 Ra2 Qh5 Ba1 Rg6 Rg7 Rh6 Bb2 Bh7 Ba1 Bf5 f1N+ Kc1 Rb2 Rh7 Ra2 N2g3 Rb2 Rf2 Rd2 Ne2 Rg6 Qe5 Rd7 Qe7 Rgd6 Qe6 Rh1 Bg4 h2 Bf5 Rg1 Bgh3 h1N Bfg4 Nhg3 Bf5 Rg2 Bfg4 Na6 Bf5 Rh2 Bfg4 Rd1+ Kc2 Rd2+ Kb3 Nb4 Qc4 Ra7 Bc8 Rad7 Qe6 Ncd5 Qg5 Nh5 Ka3 Nhf6 Qh5 Bc3 Qd1 Bc4 Ka4 Bb5+ Ka5 Bb2 Qb3 Nc3 Qa4 Nb1 Qef5 Re6 Be5 Bd4 Qfg4 Nc3 Qgf5 Nfd5 Bh8 Be5 Bg7 Bc7 Bd4 Nf6 Qfg4 Red6 Qe6 Nc2 Qb4 Ba4+ Ka6 Bb5+ Ka7 Bg5 Bg4 Bh4 Qa4 Nb4 Bh3 Bd8+
4BrRb/b4N2/1Q2KQr1/2b1BB1q/2q2Pb1/1PQ1qk2/Rn3n2/2QNb1b1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 e5+ Ke3 c5 f4 a5 g4 h5 d4 c4 g5 h3 g6 h2 b3 a4 b6 a3 g7 c3 b7 a2 Qg4 h4 Ba6 c2 Bd2 c1B Qg2 h3 Qe2 Bg4 Qf1 Qc8 Bb5 Nf6 g8B Na6 Qd1 Qc4 Qf1 Rh6 Qe1 Nb4 Nf3 Nd3 Bh7 Rg6 Rg1 h1Q Nc3 h2 Be8 Nb2 Ng5 Qg2 Qg3 h1Q Nd1 Qh5 Qf3 Qgh3 b8Q+ Qc7 Qc8 Qc4 Rb1 a1B Nf7+ Ke7 Qc6 Rb8 d6+ Ke6 d5+ Kf5 d7 Be7 Kf2 Bc5+ Be3 Bd2 d8Q Ra8 Bd4 Be3+ Ke1 Bf2+ Kd2 Rc8 Rg2 Bg1 Qc3 e3+ Kc2 Ke4 Qdb6 Kf3 d6+ e4 d7 Qg3 d8Q Qe1 Be5 Qee2+ Qd2 Qed3+ Kc1 e2 Qe1 Qe3+ Kc2 Rd8 Qd2 e1B Qc1 Bef2 Qd6 Na4 Rb2 Rc8 Ra2 Nb2 Bd7 Rf8 Be8 Nd5 Qf6 Nb4+ Kb1 N4d3 Kc2 Qed4 Kd2 e3+ Kc2 e2 Kd2 Rh6 Bf5 e1B+ Kc2 Bh3 Rg6 Qe3 Rg8 Bg4 Bd6 Bd4 Qg7 Qg6 Qb5 Ba7 Qb6 Qh5 Qg5 Qe5 Qgd8 Qa6 Q3d2 Na4 Qe7 Bad4 Qc3 Nb2 Qg5 Qe6 Qe7 Bh8 Qef6 Qe4 Be5 Be3 Q3d2 Nf2+ Kc3 Bd4+ Kb4 Qad3 Qdc3 Qde3 Kb5 Q4d3+ Kc6 Rg6 Kd6 Bc5+ Ke6 Qc4+
K2nqb2/5kB1/1nB5/1n1N1nB1/qRPnN1Q1/1n3r1P/4QRb1/3RRrr1 w - - 0 1 illegal: No possible last move
2R1qq1r/1QQ2Nbq/2b2B2/4N1nn/1P2qNq1/N2P1n2/rR2B2k/2K2Q1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 Kd6 b4 Ke5 d6 a5 d3 f5 Kd2 h5 g5 c5 d7 f3 g6 Kf4 e5 Kg3 g7 a4 b6 c4 e6 f4 b7 f2 e7 h3 e8N h4 Qc2 c3+ Kd1 f3 Qb2 c2+ Kd2 a3 Nd6 a2 Qc3 h2 Ba3 h3 Qc6 Na6 b8N Bb7 Bb2 Qe8 d8Q Nf6 g8Q+ Bg7 Qcd5 Bc6 Nb7 Nc7 Nc5 Nh5 Qdf7 Ne6 Qb7 Ng5 Be2 f1Q Qf8 f2 Ne6 c1N Bd4 Qg2 Bf6 f1Q Na3 Qe4 Rb1 a1Q Nf4 Qad4 Qdc7 Nb3+ Kc2 Ra6 Nf3 Nd2 Ne5 Ndf3 Rb2 Qff2 Rc1 h1Q Nbd7 h2 Nf7 Qh7 Nb5 Ra2 Nde5 Qhg2 Kd1 Qde4 Na3 Qh3 Rcc2 Qg4 Kc1 Qc5 Qfe7 Qd6 Qed7 Qdf8 Qf5 Kf2 Rc4 Kg1 Rc3 h1Q Rc4 Qgg2 Qh3 Qg3 Qf1+ Kh2 Qa5 Bd7 Rc8 Qg4 Qac7 Bc6
2q3n1/4N3/1rR1RK2/nQ3P2/B1BQbr2/kN2bBP1/1q1r2NB/1r1rb1r1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 d5 b4 Kd7 c4 Kd6 f4 a5 g6 e5 g7 h5 g3 e3+ Kd3 e2 f5 e1R b6 h4 b5 Kc5 b7 Kb4 c5 a4 b6 e4+ Kc2 d3+ Kd2 h3 c6 h2 c7 a3 Bg2 d4 Nf3 a2 Nh4 Nc6 b8Q Rh6 b7 Ra4 Bf3 Rg1 Ng2 Bc5 Bb2 Be6 c8B Na5 Bd7 Qc8 Qe5 Bd5 b8N Rb6 Nc6+ Kc4 Be8 Nh6 Ne7 Kb4 g8B Bb7 Bc4 e3+ Kc1 d2+ Kc2 e2 Kd3 e1B Qde2 d1R+ Nd2 Rg6 Rc1 a1Q Qh8 Rc6 Ke4 d3 Ke5 Rb6 Bd4 Ka3 Nb3 d2 Rc3 Bc6 Kf6 Qb2 Re3 Rb1 Re6 Be4 Qf1 Rab4 Ba4 d1R Qd3 Rd2 Qe8 Ra6 Qb5 Rb6 Qc3 Rbd1 Bf2 Be3 Qd4 Rf1 Rg1 h1R Rc6 Rh4 Rh1 Rf4 Bg1 Bd5 Rh4 Be4 Bh2 Rh1 Rg4 Rg1 Rg6 Qc3 Nc5 Rbb1 Nb3 Qc1 Ke5 Qc3 Rge6 Qb2 Kf6 Ng8+
5N2/1N1q1r2/QB3r2/2P1rrBr/1n3b1R/b1q5/B2Qn1PR/kN1r1NKb w - - 0 1 illegal: No proof kernel
3Bn2K/N3B1q1/n3Q1P1/1N1QR2N/1nbbN2r/1b3rR1/3rP1B1/n1nkb3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 h5 g4 a5 b6 c5 g5 f3 d6 a4 d5 a3 b7 a2 d7 f4 g6 f2 d6 f3 b5 h3 b6 h4 Ke6 h2 Kf7 h3 Na3+ Kc3 Bg5 c4 Bc1 Na6 b8Q Qf6+ Ke8 Rh4 d8B Be6 d7 Bb4 Bg2 f1R b7 f2 Be7 Qf7+ Kd8 Nf6 Bh6 Ne8 Rb1 a1B Qd5 Rd1 Rb2 f1N Nf3 Rd2 Qc8 Ne3 b8N Nc2 Rg1 h1B Nc6 h2 Na7 Rb8 Ra2 Kb3 Bhf8 Bd4 Ng5 Na1 N3b5 Bbc3 Ra4 Kc2 Ne4 Bb4 Bh6 c3 Ra5 Rb7 Bhg5 Rc7 Qdb7 Bc4 Qd5 Rc5 Bgf6 Rc6 Bg5 Rf6 Qcc6 Rf5 Qce6 Rf3 Qdc6 Qf5 Bh3 Bb3 Nc5 Bg2 Bef6 h1N Ke7 Rh5 Kf8 Rd1 Kg8 Nf2 Nc7 Rfd3 Qb5 Bb7 Rg3 Rf3 Bg2 B7d5 Ne4 Bdc4 Qc6 Rh4 Re5 Ba5 Ncb5 Nd3 Qed5 Qf4 d8N Kc1 Qc8 c2 Ne6 Be1 Bd8 Rd2 Ng7 Kd1 Bge7 c1N Qce6 Ndb4 Nh5 Qf7+ Kh8 Qg7#
nBnR1Nnr/1n1r4/1k2PqbN/r2b3B/K1B5/8/Q1BR2PN/b1n2b1Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 h5 b4 a5 c4 f5 Kc2 d5 Kb3 Kd7 e4 Kc7 e5 a4+ Ka3 h4 e6 h3 c5 d3 g6 h2 c6 d4 g7 f3 Qd2 f2 Qf4+ Kb6 c7 d2 Ne2 d1N Qh6 d3 Ng3 d2 Ra2 f4 Bc4 f1B Nf5 Bb7 c8B f3 Bd7 f2 Be8 Nc3 Bh5 d1R Bf4 Ra5 Nd2 Ne2 Nf3 Na6 Bb8 Nc7 Rd2 Na8 Qh7 Qd4 Nh6 Nc1 Qc2 Qf6 Qa2 Be4 Rg1 h1N Nh2 Bfd3 Rf1 Ne7 g8B Bd5 Bh7 Nc8 Re1 Bb1 Bc2 f1B Re3 Bg7 Red3 Nf2 Rd4 Kb7 b6 Ne4 R4d3 Kc6 b5+ Kc5 b7 Kb6 Kb4 a3 Rd4 Bc6 Rd8 Bd5 Qb3 a2 Qa4 a1N Ka3 Kc5 b6 Rb5 Qa6 Nab3 Ka4 Na5 Re2 Qf3 Ba7 Nf6 b8Q Bc6 Qab7 Ncb3 B2d3 Ng8 Qf7 Be4 b7+ Kc6 Qbf4 Ba1 Qc1 Bc2 Qg6 Qf6 b8N+ Kb7 Rf2 Be2 Nd7 Kc7 Qg4 Nb7 Nf8 Re5 Bb8+ Kb6 Qa3 Nc1+ Qb3+ Rb5 Qf3 Bb1 Qa2 Bg6 Be4 Rd7 Qf4 Bf3 Rd2 Bd3 Qe3+ Rc5 Qg1 Bf1 Bc2 Bd5 Qh1 Ra5+
bNb2k1B/2rB4/b2nPbq1/1Rb2R1q/K6r/4b1qN/n1QP1R1N/3Q3R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 f5 b4 a5 e4 h5 e5 c5 g5 c4 g6 h3 d6 c3 g7 a4 b6 f3 b5 a3 b7 f2+ Ke2 a2 Kd3 c2 Kc4 f4 Kb4 f3 e6 h4 b6 h2 Bc4 f1B Bd3 f2 Na3 h3 Kb5 Ne7 g8N Na6 b8Q Nf5 b7 Qg5 Qa7 Bh6 b8R Kf8 d7 Qg3 Ka4 Nd6 Nb5 Be3 Qc7 Rh4+ Nd4 Ra7 Bb2 c1B Qcc2 Rc7 Nh6 Nb4 Rb5 Be2 Bg6 f1Q Be8 Qf6 d8R Qfg6 Ng4 Bc4 Bc3 Ba3 Nc6 Bf1 Rb1 a1B Nb8 Na2 Bh8 Bf6 Rf5 Bfa6 Rbb5 Bac5 Rf2 Nf5 Rd5 Nd6 Nf3 Ba1 Bd7 Bf6 Re1 h1Q Ng1 h2 Nh3 Qhf3 Rf5 h1B Ref1 Bg2 Re1 Qe2 Rh1 Be4 Nh2 Qeh5 Qf3 Ba8+ Qg4 Ne4 Qgd1 Nd6+
nb1Q2rR/Q2RbNk1/1NBbP2q/R3P2b/1Nb5/B4n1r/n1n5/2RK2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 e4 f5 h4 Kf7 c4 a5 b4 d5 c5 g5 b6 g3 b7 g2 e6+ Kg7 c6 g4 h5 g3 c7 f4 b5 a4 e5 d3 b6 a3 Ne2 g1B Bg2 d4 Be3 a2 Bf2 f3 Rh2 d2+ Kf1 d3 Na3 Nh6 Bd4 f2 Rh1 Ng4 Bf3 Na6 b8R Qh4 b7 Be7 Qc1 d1N Nc2 d2 Qa3 Nc3 Bc5 d1B Ned4 Rh7 Rc1 a1N Nb5 Na2 Nb4 Nc2 Nd6 Rh6 Nf7 Nh2+ Kg2 f1R Bc6 Bd7 c8N Nf3 Nb6 Nc7 Rd8 Bc8 b8R Ba6 Rd7 Bc4 Rh8 Rg8 Qa7 Na8 Bd6 Bc5 Ra1 Nc3 Ra5 Na2 Rg1 Bde2 Rh1 Rb1 Rc1 Qg5 Nd3 Bd1 Kf1 Ba3 Bb4 g2+ Kf2 g1B+ Kf1 Rh7 h6+ Kg6 Bc5 Bd6 Bb4 Bb8 Bd6 Bgc5 Be7 Bcd6 Bf8 Rhg7 h7 Rb3 Kf2 Qh6 Nb4 Ng5 Be7 Bh5 Bf8 Rh3 Be7 Ne3 Ke1 Nc2+ Kd2 Nf3+ Kd1 Re8 Rf8 Rd8 h8Q Rg8 Qf6+ Kh7 Qh4 Rgg3 Rh8+ Kg7 Qd4 Rg8 Qh4 Bdc7 Bc5 Bd6 Qd8 Be7 Bd4 Rg4 Bb2 Rg5 Na6 Bad6 Nb4 Rg2 Ba3 Rg1+
Q1N1Q1n1/1r4b1/RP1R1RBb/q6n/PN3n1r/bNRq1b2/1b1K4/Bk3b2 w - - 0 1 illegal: No proof kernel
5N2/1rrr2BN/KP5N/rPb2Bb1/3R2QR/Bn1rQb2/1nq2B2/k1n4b w - - 0 1 illegal: No possible last move, all moves rejected
3nRQ2/k1rN1PQ1/r4K2/N1N1q3/n1Pr2r1/2r1q1Rr/1Q4Nb/BB2nb2 w - - 0 1 illegal: No possible last move
k1rb1r2/NNQ5/1n1b2bK/1n3B1q/1B3N1q/5P1B/3BPrbR/2QRr2b w - - 0 1 illegal: No possible last move, all moves rejected
4Nq2/B1b2bq1/k4r2/1Nn1n2r/q1B2bqN/RqR1P1RP/4N2Q/4bQ1K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 c5 b4 Kc7 d4 Kb6 d6 a5 d7 g5 d5 f5 h3 a4 d6 a3 Nf3 a2 Nh2 f3+ Kg1 f4 Na3 f2+ Kg2 f3+ Kg3 c4 Qe1 c3 Qd2 c2 Qf4 Qe7 d8N Nc6 d7 Qg7 Nb1 Ra6 Na3 Bd6 Rg1 Nf6 Nb7 Rh5 d8N Bc7 Nd6 Nd7 Ne8 Nce5 Nc6 Nc5 Be3 c1B Nd4 Be6 Qf8 Kb7 b6 Bf7 b5 Bd2 Rc1 a1Q Rc3 Be1 Rg2 Qd1 Rg1 Qa4 Rg2 Ka8 b7+ Ka7 b8R Rf6 b6+ Ka6 b7 Qb3 Nab5 Qa4 Bc1 Qb3 e3 Qa4 Bc4 f1Q+ Rf2 Qd3 Ba3 Qdc2 Ne2 Qcb3 Bb2 Bd2 Rg2 f2 Ba3 f1Q Nf3 Be1+ Kh2 Qf2 Kh1 g3 Rg1 g4 Nh4 Qf4 Rd8 Qfh6 b8Q g2+ Kh2 Qhh8 Rd2 Qhg8 Ra2 Q8h8 Bb2 Qhh6 Ra3 Qhh8 Rf1 g1B+ Kh1 Bh2 Rf3 Bf4 Rg3 Qhg8 Rc1 Q8h8 Bd4 Qhg8 Rc3 Q8h8 Rg1 g3 Rg2 Ncd3 Ba7 Nc5 Qg8 Qf8 Qh7 Qhg7 Qb1 Bf2 Qg1 Be1 Qh2 Qg4 Qa8 Qgg7 Qf3 Qg4 Qf1 Qgg7 Rf2 Qg4 Rf3 g2+ Kg1 Qgg7 Rg3 Nc6 Rg6 Bd2 Kf2 g1Q+ Kf3 Qg5 Kf2 Qf5 Kg2 Be1 Rg3 Qfg4 Kh1 Ne5
bKrk1r2/QR4B1/4R2b/1NR1r2q/2r1qPn1/1Pn3NB/N3q2q/Q2q3R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 a5 Ke3 c5 Kf4 h5 Ke5 h3 d4 e3 f4 a4 g4 h4 b3 c4 g5 e2 b6 e1Q+ Be3 h2 b7 a3 g6 h3 g7 c3 d6 c2 d5 c1R Ba6 a2 Nc3 Nh6 g8R Qa5 d7+ Kd8 Nb5 Qe2 Rg6 Rc4 Rc1 a1Q+ Qd4 Q1a4 Qa1 Nc6+ Ke6 Q4b4 b8R Na7 Rb7 Ng4 Rc2 Qa2 Rf6 Qd1 Ne2 Bh6 Bd4 Rf8 Ng3 Qbe1+ Be5 Qe4 Rc3 Qae2 Rg6 Rd4 Rc5 Rc4 Rf6 Nc6 Rg6 Nb4 Rf6 Na2 Rg6 Nc3 Rf6 Ne3 Rg6 Q4d3 Bg7 Q3b1 Ke5 e6 Kd6 e5 Kc6 e4 Re6 Ng4 Kb6 Rb8 Ka7 e3 Rd6 Ke7 d8N+ Bd7 Rf6 Rc8 d6+ Ke8 Nc6 Qe4 Nb4 Kd8 Re6 Bc6 d7 Bd5 Rf1 h1Q Na2 h2 Re1 Qhg2 Rg1 h1Q Rf1 Rc7 Kb8 Qh5 Rh1 Qgh2 Ra7 Qe2g2 Bc8 e2 Rb7 e1R Ra6 Ke7 Rab6 Qge2 d8Q+ Kf7 Qf6+ Ke8 Qf7+ Kd8 Rg6 Bc6 Re6 Bd5 Rbb6 Rc6 Qa7 Rc7 Bd7 Ba8 Rb7 Q2f3 Nf1 Nf2 Rf5 Qeb1 Bc6 Ng4 Rc5 Re5 Ng3 Qfe2 Bg2 Qbe4 Bh3 Rc8+
R5bq/b2rk3/1R2r2N/2RB3N/1Pr1r1R1/b6P/2qr1NnK/1bn1B1QQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 f5 Kg2 g5 d4 c5 e4 a5 e5 f3+ Kg3 f4+ Kf2 c4 d6 g3+ Ke1 g4 e6 g2 Kf2 g3+ Ke1 f2+ Ke2 a4 Kf3 c3 d7+ Ke7 d5 a3 h3 a2 b3 c2 b6 Nc6 b7 Ne5+ Ke2 Ra6 b8R Rh4 Rb6 Nh6 Bd2 c1R Be1 Rc4 Nc3 Nhg4 Ne4 Nd3 Kf3 Ne3 Rc1 a1Q Ne2 g1B Bg2 f1B Nf2 Qc7 d8N Qh8 Nf7 Ra2 Nh6 Rd2 Rc3 Nc1 Rh2 Re4 Rc5 Bb7 Bh1 g2 Ng3 Bd3 Nh5 Bb1 d6+ Kd8 d7 Ke7 d8R Bd5 Ra5 Qc2 Rda8 Bc4 Rc5 Rd7 Nfg4 Bf2 Qd4 g1R Rg2 Rf1 Rg3 Ng2 Qd1 Be3+ Nf2 Bd4 Rg4 Bd5 Bd2 Rfe1 Bb4 R1e2 Qg1 Bc4 Be1 Rd2 Rc7 Bc5 Rcc6 Ba3 b4 Bg7 Rc7 Be5 Rcc6 Bb8 Rc5 Ba7 Ng7 Kf6 e7+ Re6 e8Q Bb3 Qb8 Ke7 Qg8 Re4 Qc8 Bg8 Qb7 Re6 Nh5 Re4 Rg3 Rg4 Qc6 Rg6 Rgg5 Rge6 Kg4 f3+ Kg3 Rc4 Kh2 Ree4 Rg4 Re6 Ne4 f2 Qb7 f1R Nf2 Nf4 Bd5 Ng2 Nh1 Rff4 Nf2 Rcd4 Qa6 Rfe4 Qaf1 Rc4 Qh1 Bb2 Qfg1 Ba3
6Q1/kq2r1RQ/7b/PB3P2/bqr1Nq1R/3q1r2/1nrN3R/BNqRn1K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 b5 f4 h5 Kf2 e5 g4 c5 f6 Kc7 f7 Kb6 f5 b3 a5+ Ka7 d6 b4 d5 c4 d7 h3 d6 c3 g5 e4 g6 h4 g7 c2 Ba6 h2 Qh5 h3 Bh6 c1R Bb5 b2 Bc4 e3+ Kg3 b3 Na3 b1Q Nc2 e2 Kf2 e1R Bd2 b2 Bb3 Qg5 d8N Nf6 g8Q Bd7 Ra2 Bh6 f8R Ba4 d7 Nd5 Ne2 Nb4 Ncd4 N8c6 Be3 Rc8 Bc4 Rc2 Rf7 Qf4+ Nf3+ Nd4 Bb5 R8c4 Rg7 Qc1 Nf7 b1Q d8R Qd2 Rd6 Qd3 Bd2 Rh7 Nc3 Re7 Rd1 h1Q Ng5 h2 Nge4 Qc1 Nb1 Qe1+ Kg2 Qeh4 Rc6 Qhg4+ Kf2 h1Q Qhf7 Rh8 Qh7 Rc8 Qfg8 R2c3 Rd6 Ndc2 Rd4 Ne1 Be3 R8c6 Re2 Ra3 Bd2 Rc2 Bc3 Rc4 Red2 Qhh5 Ba1 Qf7 Re2 Qd5 Kf1 Qb7 Kf2 Qh4+ Kg1 Qf6 Kf1 Qb3 R4d3 Q6d6 Rh2 Qdd7 Re3 Nbd3 Kg1 Qb4 Nfd2 Nb2 Reh3 Rf3 Rh4 Qd3
2N2bQ1/N2kb3/bn4nP/3n1R2/2q2P1q/1Nr1QRR1/bBR1nr2/2nB3K w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 c4 a5 f4 g5 Kf2 d5 Kg2 a4 b4 e4 f6 e3 c5 d3 c6 e2 c7 e1B b6 a3 h5 d2 h6 a2 b5 d4 f7+ Kd7 b7 g3 b6 d3 Qh5 d1N Nc3 d2 Nb1 g4 Qh3 Nc3 Qh4 d1B Qg5 Nd5 Rh3 Nge7 Ne2 Bb3 Nd4 Bb4 Na3 Ng6 Bb2 Bbe7 Rc1 a1N Kh1 Ba2 Nab5 Nb3 Rc2 Nc1 Be2 Ra4 Na7 g2+ Kg1 Ra3 Qe5 Rf3 Rg3 Rf2 Qe3 Rg8 Kh2 g1N+ Kh1 Rh8 Bd1 Nge2 Rf3 g3 Nb3 g2+ Kh2 Nc6 b8R Na5 b7 Nc4 Ra8 Ncb6 b8Q Ba6 c8N Qc7 Rg3 Qc4 Rf3 Bg7 f8R Rh7 Rf5 Bgf8 Qbe5 Rf7 Qg7 Rf6 Qg8 g1Q+ Kh3 Qg5 Rg3 Rf3 Kh2 Rc6 Kh1 Rf2 Rb8 Na8 Rb5 Nab6 Rf3 Qf6 Rg5 Rc7 Rgg3 Qh4+ Rh3 Nf6 Rf5 Nfd5 Rg3 Qb4 Rf3 Rc3 Rg3 Qc4 Rf3 Qg5 Rhg3 Qh4+
1Q3qr1/QB2b1Nn/5P2/NnrP1RBn/1r5N/1R1N2nK/1q1rk1b1/3rB3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 f4 e5 Kf2 h5 Kg2 a5 b4 c5 d6 c4 f5 e3 b6 Kg5 d7 Kf4 b7 a4 b5 c3 d5 a3 b6 e4 g5 c2 g6 a2 g7 h3+ Kh2 h4 Ne2+ Kf3 Qe1 Ra4 Ba3 c1R Nbc3 Na6 b8N Rb4 b7 Be7 Na4 Rc5 Nb2 Nc7 Qb1 Qf8 d8B Nf6 g8N Nh7 Nd3 Nb5 Nef4 e2 Ng6 e1R Nh6 e3 Nc6 e2 b8Q Rd1 Qa7 e1R Na5 Rg8 f6 Bf5 Bc1 Be4 Bg5 Re3 Rg1 Re2+ Rg2 Red2 Nf5 Rc8 Qb3 Rc5 Rb1 a1Q Ng7 Qb2 Bc7 Rc3 Bg3 Rc5 Kh1 h2 Be1 Rf2 Rg4 Rfd2 Rf4+ Ke3+ Bg2 Ke2 Rf3 Rc8 Bh3 Rc5 Kg2 h1N Bc8 Ng3 Kh3 Nh5 Rf5 Bf3 Bb7 Bg2+ Kh2 h3 Nh4 Nf4 Kg3 h2 Kg4 Be4 Kg3 h1N+ Kh2 Nh5 Kh3 Qc1 Qb2 N1g3 Qe5 Qc2 Rb3 Qb2 Qeb8 Bg2+
krN2N2/B4nn1/P1Rr1b2/n7/Q3r2r/QBrn3P/2b1QN1K/2QqR1q1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 Kd7 a4 b5 f4 g5 Kf2 c5 Kg2 Kc7 h3 Kb7 a5 e5 f6 b3 f5 c4 d6 c3 f7 e4 d5 b4 d7 g3 d6 c2 f6 g4 Qd3 b2 Nf3 b3 Qd4 e3 Kg1 g2 Nc3 b1R Ng5 e2 Nce4 e1R Qb2 Bg7 f8N Rh4 f7 Ne7 Nf6 Nf5 Ra4 Nc6 Be3 c1N Kh2 g1N Ba7 Re4 Ne8 Nd3 Qc1 b2 Rc4 Rb8 a6+ Ka8 Be2 Bf6 Bd1 Rb6 Bb3 Na5 Rc2 Ng7 Rc6 Qe7 d8Q Qd7 Qe7 g3+ Kg2 Qg4 d7 Nf3 d8Q Nfe5 Qd4 Bf5 Qa4 Qd1 Re1 Bg6 Kh1 g2+ Kh2 g1R Nd6 Rg3 Nc8 Rge3 Rc7 Rd6 Rc6 Bf5 Nfe6 Rf3 f8Q Nf7 Qee8 Nb4 Qfe7 Rc3 Nf8 Nd3 Qa3 Ra1 Qe5 b1Q Qb5 Bh7 Qba4 Bf5 Qe6 Bg6 Qg4 Ra2+ Qe2 Rb2 Bc2 Rb8 Bb3 Re8 Ne4 Re5 Ng3 Ree4 Nh1 Ree6 Qaf4 Nb2 Qce3 Qd5 Rf1 Bc2 Qfa4 Ree4 Nf2 Qd2 Qh6 Nd3 Rg1 Qg5 Re1 Qg6 Qg5 Qd1 Qgc1 Qg1+
1b1kn1bR/1n3PbQ/2q3n1/R1q3nr/4RNQ1/B1N2QK1/1b4P1/3B1rQn w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 h5 b4 a5 f4 c5 Kf2 e5 f5 a4 f6 a3 d6 c4 d5 e3+ Kf3 h3 b6 h4 b7 h2 b5 h3 b6 a2 Bb2 e2 Kg3 e1B+ Kf3 c3 Na3 e4+ Kf4 c2 Qc1 e3 Ba6 e2 Be5 Qc7 d7+ Kd8 Bd6 Qc5 Nb1 Nc6 b8R Nce7 b7 Rh5 Nc3 Bg7 f7 Nf6 Bb5 Ne8 Ba4 Bg3+ Kf3 e1B Nge2 Ng6 Nf4 Ra5 Qe3 c1Q Bd1 Rb5 Qe6 Rb1 Qg4 Qc6 Rg1 h1N Ba3 h2 Ra8 Qc2 b8Q Nf2 Qb7 h1N Ra4 Qc1 Re4 Nh3 Qa7 Bd2 Rge1 Ba6 Qg1 Bd3 R1e2 Be3 Rb2 Bed4 Rb8+ Kc7 Ra8 Qc2 Ra5 Rc1 Rb1 a1N Rb8 Nb3 Rd8 Nc5 d6+ Kb6 Rc8 Nb7 Rca8 Qc5 d8Q+ Kc6 d7 Bdf6 Ncd5 Bb2 Qdh4 Ra1 Nc3 Kc7 Qf6 Qa4 Qff5 Qac6 Rb8 Ned6 Rf8 Ne8 Rh8 Kd8 Qf6+ Ne7 Qh6 Ng6 Qh7 Bb1 Nfe2 Bb8 Nf4 N1f2 Kg3 Ng5 Qf3 Nh1+ Kg4 Qd4 Ree5 Nf2+ Kg3 Ne7 Bb3 Qdc5 Qh6 Bh7 Re4 Bg8 Qh7 Rf1 Bc2 Ng6 Bd1 Ne5 Qg4 Ke7 d8Q+ Kf8 Rea4 Ng6 Qd5 Ke7 Qdf3 Kd8 Re4 Nh1+
1q5k/b2b1P2/QQr1Qq1b/Pqb1R1bN/q5B1/1N2BN2/1K2R3/2rn1Q1n w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 a4 Kf7 d4 b5 Kd2 c5 Kc2 g5 f4 Kg7 h4 e5 d6 e4 a5 e3 d7 b3+ Kb2 g3 h5 c4 d5 e2 d6 e1Q Be2 b4 Bf3 g2 Nd2 c3+ Kb1 c2+ Kb2 g4 Nh3 g1B Be2 g3 Nf2 g2 Ng4 Ne7 Nh2 Bc5 Ra2 g1B Bg4 Nd5 Qe2 Ra6 Nhf3 Nc6 Qe6 Nc3 f6+ Kh7 f5 Bh6 f7 Ne5 f8Q Qd1 f6 Rc6 f7 Qf6 d8Q Bd7 Qb6 Bg5 Qfb8 Rhc8 h6 Kh8 h7 Bgf2 Qa8 Nd3+ Ka1 Bfe3 Rh5 Nf2 Qaa6 Nh1 Kb2 Bh6 Qbb5 Ba7 Re5 Bec5 Qf1 Bg5 Nc4 Qd4 Be3 c1B+ Ka1 Qe4 Re2 Nd1 Ncd2 b2+ Ka2 Qc4+ Nb3 Qb5 Kb1 Qa4 Kc2 Kg7 h8N Bh6 Bd4 Bcg5 Ng6 Kh7 Nf4 Kh8 Be3 b1Q+ Kd2 Qd3+ Kc1 Qdb5 Nh5 Qb8 Nbd2 b3 Kb1 b2 Nb3 Be8 d7 R8c7 d8Q Rc8 Qdd6 Bd7 Kc2 Qbb5 Qc7 Qb8 Qcb6 b1Q+ Kd2 Qd3+ Kc1 Qdb5 Qe1 Bd6+ Qc4 Rc5 Qf1 R8c6 Kb1 Bdf8 Qe6 Rc4 Qbb7 Bfc5 Qbb6 Ndf2 Kb2 Rc2+ Kb1 Rc1+ Kb2 Nd1+
1n1BRN2/q3P1kN/2Kn3q/3r4/5Nq1/1R1nQrn1/1NBn1BP1/bq3b1Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 Kf3 Kf7 d4 h5 b4 c5 e4 a5 e5 h3 b6 c4 d6 c3 d5 a4 e6+ Kg7 e7 h4 b7 c2 b5 h2 b6 a3 d7 a2 d6 h3 Bb2+ Nf6 Na3 c1N Nc4 Nd3 Rb1 a1Q Bd4 Ra3 Bf2 Ne8 Nb2 Rh5 Ne2 Rc3 Qc1 Qa7 Qe3 Qc7 d8B Qc4 d7 Nd6 Bc7 Qca4 d8N Be6 Nf7 Bc4 Ng5 Rb3 Rg1 h1Q Bd8 h2 Nh7 Rg5 Nc3 Qd7 Nd5 Qe6 Be2 Qh6 Rgc1 Qd1 Rc2 h1N Rc3 Ra3 Rb3 Ng3 Rc1 Bb5 Rc8 Qb1 Bg1 Ra2 Qf2 Nd7 b8N Bc4 Nd1 Kg8 Rb2 N3c5 Bd3 Ra3 Bc7 Kf7 Rb5 Bg7 Re8 Ba1 Nb2 Kg7 Bd8 Rb3 Qf1 Rh5 b7 Rg5 Kf2 f3 Ke3 f2 Kd4 f4 Bc2 f3 Nf4 Rh5 Qd1 f1N Be3 Rc3 Rb3 Nd2 Qg1 f2 Qh1 f1Q Bf2 Nf6 Nd7 Qe2 Ndf8 Qg4 Qh4 Bf1 Qh1 Nfd7 b8Q N6c4 Qb5 Rf3 Qb6 Nb8 Qe6 Nd6 Qe3 Ngf5+ Kd5 Nd3 Bd1 Na6 Bc2 Ng3+ Kc6 Rb5 Bb6 Rd5 Bd8 Nb8+
B6b/qq1KPqrN/4NQ1R/Q1R5/6n1/3b1q1B/P2qrnBk/1nB1R2n w - - 0 1 illegal: No possible last move, all moves rejected
N3nb2/RK2P1nk/5r2/RRP1N2b/3qrRrB/2QN4/6q1/nr1n1rQB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 Kf7 h4 g5 e4 Kg7 b4 d5 c4 a5 h6+ Kg6 c5 d3 e5 a4 e6 d2 h5+ Kh7 e7 a3 b6 a2 b7 d4 b5 d3 b6 Nf6 Nc3 Rg8 Nd5 Na6 b8R Ra7 b7 Ne4 Nb4 Nd6 Rh4 Ne8 Bg2 Qd4 Bh1 Ng7 Ra8 Nc7 b8N Nce8 N8a6 Bd7 Nc7 Ra4 Ra5 Bb5 Rb1 a1N Na8 Ba6 Qf1 d1R Bb2 d2 Nd3 Rc4 Bc3 Bc8 Rbb5 Rb1 Qf2 d1N Be1 Be6 Rg4 Bf7 Qg2 Rc2 Bh4 Re2 Qh2 Re4 Ra7 Kh8 h7 Bg6 Ne2 Bf7 Qg1 Bg6 Nec1 Bf7 Kg2 f3+ Kg3 f2 Kf3 f4 Ne5 Bg6 Ncd3 Bf7 Rg2 f1R+ Rf2 Nf5 Rba5 Kg7 h8R g4+ Kg2 g3 Kf3 g2 Rh6 Qd8 Rb6 Kh7 h6 Qd4 Rb2 Rg4 Rbb5 Kh8 h7 Bh5 Nf7+ Kg7 h8Q+ Kg6 Qf6+ Kh7 Nfe5 Nfg7 Qd6 Qc4 Qd4 Qb4 Qc3 Qd4 Qh2 g1Q Qg2 Qh2 Qg1 Qh3+ Bg3 Rfe1 Nf7 Re6 Nfe5 Qh2 Bh4 Rf6 Re2 Qdf2+ Ke4 f3+ Kd5 Qhg2 Re4 Re2 Rf4 Re4 Qb4 Qe3 Qbe1 f2 Qc3 Nd6 Kc6 f1R Kc7 Nde8+ Kb7 Qd4
n5Qr/R2PN3/Q2n1rP1/2q3KN/4bR1r/b3qRnr/n2kBBr1/B2B4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 Ke5 e4 Kd4 g4 f5 d3 h5 d6 c5 d7 a5 e5 h3 g5 a4 g6 h2 b6 h4 b7 c4 b5 h3 b6 c3 e6 a3 e7 a2 e8B c2 Ba3 c1N Bd6 Nh6 Be2 Nf7 Bb4 Nd6 Be1 Na6 b8R Qe7 d8Q Nc7 Nc3 Bb7+ Nd5 Ra6 Bc6 Na8 Ba4 Qc7 Bg3 Qc5 Qf1 Bc6 b7 Ra5 Rb1 a1Q Bad1 Qac3 Rb3 Ra2 Qe8 Be7 Qg8 Rb2 Rc8 Na2 b8B Qc1 Rf8 Q1c3 Kf2 f3 Ra3 f4 Ra7 Qc1 Rf7 Bf8 Ne7 Kc3+ d4 Be4 Bh4 Kd2 Rf5 Nc8 Be5 Nd6 Rf7 Qa3 d5 Qac5+ Bd4 Q1c3 Bd3 Qb3 Ne2 Qba3 Rg1 h1R Ng3 h2 Nh5 Qac3 B3e2 Qc1 Rg3 Q1c3 Qg1 Qe3+ Kf1 f2 Rf3 Rc2 Kg2 f1N Kh3 Ng3 Kg4 Rb2 Kg5 Rc2 Rf2 f3+ Rf4 Rb2 Rf1 f2 Qg2 Rc2 Ba1 Rb2 Qh3 Rc2 Qc8 Rb2 Rg1 f1R Qa6 Rf3 Rg2 Rhf1 Rg1 h1R Rg2 Rh3 Rf2 Rfh1 Rf1 Ngf5 Bf2 Ng3 Qb7 Rh4 Qb6 R1h3 Qa6 Ndf5 d6 Rc2 d7 Nd6+ Kf6 Rb2 Bg1 Rf2 Rf3 Rg2 Bf2 Rb6 Rf4 Ndf5+ Kg5 Rf6 Bd4 Nd6+ Be5 Qc7 Ba1 Qcc5+ Nd5 Ne8 Bg1 Qc2 Rf3 Ba3 Bf2 Nd6 Ne7 Qcc5+
q2rB2k/1P3Rq1/nN3PQq/b1Rbb3/K2RN1rQ/4q2n/3bb3/BR3Q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kg7 Kd2 e5 Kc3 a5 Kb3 c5 f4 h5 b6 c4+ Ka4 e3 b4 e4 d6 c3 d5 e2 g5 e1Q d7 e3 b5 e2 f5 h3 g6 h2 d6 c2 b7 h4 b6 h3 Ba3 c1B Nd2 Nh6 Ne4 Bd2 Nf3 Ng4 Ne5 Na6 b8R Rh4 b7 Nf2 Bc1 Rg4 Bb2 Kh8 Rb1 Bg7 Nc4 Be5 Nb6 Qe7 Ba1 Qg7 Rg1 h1B f6 h2 d8Q+ Qg8 d7 Nh3 Qc7 Qg7 Qc4 Bg2 Rb5 h1Q Rc5 Qf2 Qd4 e1B Bb5 Qe3 Qe2 Bf3 Qf1 Be2 Qb4 Qh2 Bc6 Qhf4 Rh1 Qfh6 d8R+ Qf8 Qd4 Be6 Be8 Qfg7 Qb4 Bg8 Rd4 Bd5 Rbc8 Rb8 R8c7 Rd8 Rf7 Qh5 Qc4 Qhh6 Kb5 a4 Rg1 a3 Ka4 a2 Rh1 Qf8 g7+ Kh7 Rg1 Ba5 Rh1 Bed2 Rg1 Kg6 g8Q+ Qfg7 Qf8 Kh7 Qd6 Bh2 Qg3 Kh8 Qh4 Bb8 Qf5 Bf4 Qg6 Be5 Rb1 Bf3 Qf1 Be2 Bb2 a1Q+ Ba3 Qac3 Bb2 Qcd3 Ba1 Qc3 Rcb5 Qc8 Rc5 Qa8
2q1q2Q/b3rrRB/N4Q2/b1B3B1/B2br2K/1b2n3/rRP1Pnkn/R1N5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 Ke6 b4 Kf5 h4 d5 e6 a5 h5 g5 e7 d3 e8B d2 h6 d4 h7 d3 b6 a4 b7 a3 b5 a2 b6 Na6 b8Q Be6 b7 Bb4 Qc7 Ba5 b8B Nf6 Bg2 Nc5 Bb5 Qc8 Bb7 Bb3 Qd8 Re8 h8R Ra7 Nf3 Nce4+ Kg2 g3 Kh3 g4+ Kh4 g2 Rh7 g1B B7a6 g3 Nh2 g2 Be5 Bd4 Qb6 g1B Bc7 Nf2 Bb8 N6g4 Qf1 d1Q Qh6 d2 Ba4 Re4 Bd3 Re7 Nf3 Nh2+ Bf4 f6 Na3 Ba7 Rb1 a1R Ne5 Ra2 Rg7 Qe8 Ra1 Qe1 Bb2 d1N Qh8 Ne3 Nb5 Qc3 Nc7 Qc5 Na6 Qcc8 Bc1 Bd4 Ng4 Ba7 Bd6 Bd4 Bc5 Kf4 Rb1 f5 Rb2 Rf7 Kh5 Kg3 Kg5 f4 Ne5 f3 Kh5+ Neg4 Bg5 Ne3 Qa1 Rg4 Be4 Kg2 Nd3 Re7+ Bg6 Rge4 Nc1 Nfg4 Kh4 f2 Bh7 f1R Rb1 Rff7 Qc3 Be5 Rb2 Bb8 Qf6 Ba7 Bf4 Nc4 Bg5 Bd4 Nd3 Nce3 Ra1 R4e6 Nc1 Nf2 Nb8 Re5 Na6 Re4+
b1QB3B/r1r1r2N/3nBN1N/2QRb1rK/1q1n4/n4nP1/1b1P1qk1/4R1N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 Ke5 e4 f5 b6 c5 d6 h5 b5 a5 d7 c4 b7 a4 b6 h3 g3 h2 Nh3 h4 Ra3 c3 Bc4 c2 Bd3 Nc6 b8N Nge7 b7 Rh7 Ra1 a3 Bc4 a2 Nc3 Qb6 d8N Qb4 Ne2 Ra7 Nhg1 h3 Ne6 Nd4+ Kf2 f3 Nc3 f4 Nd8 Bg7 Rb1 a1N Bb2 c1B Na2 Nf5 Qc2 Nd6 Nc3 Bd7 Bd5 Bc6 Be6 Bh8 Nd5 Rc7 Qc5 Nc2 Ba1 Bb2 Re1 Na3 Nf6+ Bd5 Nh7 Bg7 Ne2 Bf6 Rhf1 h1R Ng1 h2 Qb5 N4f5 Nf7+ Kd4 Qa5 Be5 Nh6 Kd3 Qc5 Nd4 Nd7 Bc6 b8B Ba8 Ne2 Rg1 Ndf6 h1R Rc1 Rh4 Rfe1 Rg4 Rc2 Re7 Bc7 Rg5 Bd8 Rh1 Ng1 Rh4 Kf1 f2 Kg2 f1N Rcc1 Rhg4 Kh3 f3 Rc4 f2 Rc2 Bf4 e5 Nh2 Rcc1 Rgg7 Rb1 R4g6 Kh4 f1Q Kh5 Nhf3 Rbc1 Qf2 Rc4 Qc3 Rb4 Rgf7 Rb7 Qb4 Rd7 Nc8 Rd5 Nd6 Bc8 Rgg7 e6 Be5 Bd7 Rg8 Bc8 Rec7 e7 Rfg7 e8Q Rge7 Be6 Rg4 Qd7 Rg6 Qc8 Rgg7 Nh3 Rg4 Rh1 Ke2 Ng1+ Kf1 Ne2+ Kg2 Re1 Rcd7 Ng1 Rdc7 Qb8 Ndc2 Nf8 Bed4 Nfg8 Bc1 Qc8 Bh8 Be5 Ncd4 Nh7 Bb2 Bf6 Bg7 Be5 Bf8 Bh8 Bg7 Ra1 Bf6 Re1 Be5 Ngf6 Rg5+
3BnN2/Q1N2Bb1/1qR3R1/r1q2K1n/1kr2Q2/2rPR3/2r1bP1R/Nn2b2b w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 a5 b6 e5+ Ke3 h5 g5 a4 d6 h3 g6 a3 b7 h2 d3 h4 g7 a2 d7 h3 b3 Na6 b8R Rh4 Rb6 Nf6 g8R Nh5 Qd2 Bg7 Ke2 e3 Kf3 e2 Ke3 e1Q+ Ne2 Rc4 Nc3 e4 Rc6+ Kb4 Bg2 Qg1 Bb2 Qc1 Nb5+ Rc3 Re1 h1R Ned4 h2 Rb1 Qf6 d8N Bg4 N8e6 a1N Nf8 Be2 Bh3 Rf1 Be6 h1B Bf7 Rg1 Rh8 Rg4 Rg1 Rf4 Rg6 Qc2 Rc1 Ra7 Re6 c5 Nc7 c4 Rc6 Qd6 Re1 Qb1 Bc1 Qc5 Qa2 Rc2 Rh7 c3 Ba3+ Ka5 b4+ Ka4 b5 Nb3 b6 Nd2 b7 Qbb6 b8Q Nb1 Bb2+ Kb4 Rh8 Ra8 Qa7 Rh4 Qd5 Rf4 Qg5 Rg4 Qf4 Rh4 Nb5 Nc7 Rhh6 Ne8 Nc7 Rd2 Rh7 c2 Rh8 c1R Rhh6 Qe7 Ba1 Rc5 Nb3 Rdc2 Bf6 Qe5 Na1 R5c3+ Rc5 Qf5 Kd4 Qc8 Ke5 Rg4 Rc6 Rh4 Qf3 e3 Rh8 Rhc4 Qf4 Qcb8 Ke6 Qc5 Bd8 Qbb6 Rhh6 Nhf6 Rh2 Nh5 Qb8 Ra5 Qa7 Bef3 Qb7 e2 Qa7 Bd5+ Kf5 Bhf3 Reg1 e1B R1g3 Be2 Re3 Bh1+
3BnQN1/3b2q1/1N2q1r1/rr3Q2/2BRB2K/2PNnbb1/nbP1R1B1/k4n2 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 h5 c4 h6 c3 dxc3 gxh6 Ra5 h5 Ra1 h4 Kf2 h5 b4 d5 e4 Kd7 g4 a5 b6 Kc6 g5 f5 b7 f3 e5 d4 g6 d3 e6 Kb5 g7 h3 Kg3 f4+ Kh2 f2 e7 h4 e8B+ Nc6 b8N a4 Nd7 f3 Bg2 f1R Bb2 d2 Bc1 f2 Ne5 a3 Qe2+ Ka4 b5 d1N b6 a2 b7 Bd6 b8Q Ne3 Bh5 Nb4 Ba3 Rh6 Qd2 Bd7 Qd3 Qc8 Nd2 Ra5 Bhf3 Rg6 Be4 Rb1 Ne2 Nf6 g8B Ne8 Re1 Rb2 Rab1 a1B Nc4 Na2 Nf4 Rbb5 Nh5 Bb2 Re2 Qc6 Rd1 f1N+ Kh1 h2 Nf6 Bc7 Be7 Qe6 Bd8 Bd6 Nb6+ Ka3 Qd5 Bc7 Nd3 Bg3 Qg5 Nb4 Qc8 Ka2 Rdd2 Ka1 Qh6 Na2 Qf8 Qe7 Bc4 Qg7 Bh3 Nd1 Kg2 Nde3+ Kf3 h1B+ Bg2 h3 Ng8 h2 Qcc5 Bf2 Kf4 Be1 Qcf5 Bh4 Bh3 Bf3 Bg2 h1Q Ne1 Qf7 Rd4 Qe6 Nd3 Bf2 Ne5 Qh7 Nd3 Rf6 Kg5 Be1 Nf2 Qg7+ Kh4 Rg6 Nd5 Ng3 Nd3 Bf2 Nb6 Ngf1+ Kh3 Bg1 Kh4 Bh2 Qg4 Bc7 Qgf5 Bg3+
2nb1Nq1/nn4r1/Q1BkbR1B/5nb1/1R4QP/1Pb3q1/qQ2Kr1R/1N4R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Ke7 h4 f5 d4 g5 e5 a5 e6 c5 b6 f3 b3 c4 b7 a4 Bb2 f2+ Ke2 g3 Bg2 f1Q+ Ke3 f4+ Kd2 a3 Qf3 g4 Nc3 a2 Ne4 c3+ Kc2 Qe2+ Nd2 Ra7 Rb1 a1B Qe3 f3 Nh3 f2 Ng5 f1N Qg1 Bh6 Bc1 Nc6 b8R Kd6 e7 Be6 e8R Nge7 Rf8 Nc8 Rh2 Rg7 Rb4 N6a7 Rf6 Qg8 Nh7 Bg5 Nf8 Rh6 Bf3 g2 Qf2 Qa6 Kd1 Qa2 Ke2 g1Q Be4 c2 Qf3 g3 Qg4 g2 Bf3 Ke7 d6+ Ke8 d7+ Ke7 d5 Ne3 Be4 Nf5 Bf3 Kd6 d8Q+ Ke5 d6 Bc3 d7 Kd6 Qa5 Rhg6 Rf7 Rf6 Bc6 Qf2+ Kd3 g1B Qa6 Qf4 Ke2 Qg3 Ra1 Bb6 Nb1 Bd8 Bd2 Rh6 Rf6 c1N+ Kf1 Nd3 Ke2 Bb2 Bc1 Nc5 Be3 Bc7 Bc1 Nb7 d8Q+ Kc5 Qd2 Bc3 Qb2 Kd6 Be3 Rh8 Nd2 Rhh7 Rg1 Bd8 Nb1 Rf7 Bd2 Rhg7 Rg6 Bgf6 Bh6 Bg5 Rf6 Nfe7 Rg6 Rf1 Rf6 Nf5 Rgg2 Rf4 Rg1 Rf2+
RQK1R2b/b1q2Nk1/1r1B2rN/1Q5B/1P1bQnrn/5b2/qP2Q1qN/q7 w - - 0 1 legal: proof: g4 d5 f4 h5 c4 hxg4 cxd5 b5 f5 b4 a3 e6 axb4 exf5 Ra5 f4 Ra6 Qd7 Ra1 Qd8 Kf2 f5 h4 Kf7 d4 g5 e4 a5 h5 c5 h6 a4 e5 c4 h7 c3 d6 c2 e6+ Kg7 d5 a3 e7 f3 Kg3 f4+ Kh2 f2 e8Q f3 Kg3 a2 d7 Bb7 d6 Nc6 Be2 f1R Bd2 c1Q Rh2 f2 Rh4 Rb8 Rh3 Ne5 Rh2 Qe7 d8Q Qc4 d7 Nd3 Nc3 Nh6 Ne4 Nf4 Qa5 Rg8 Nf6 Bf3 d8Q Rb6 h8N Re1 Qc2 f1Q Qab5 Qb3 Bd1 Ree6 Qb8 Red6 Re2 Nf5+ Kh2 Qc4 Nf7 Nh4 Kg3 Rdc6 Qe4 Re6 Nd7 Rg6 Nde5 Qb3 Nh6 Qa3 Rb1 a1Q Nef7 Q3a2 Re1 Qe2 Be3 Qd2 Bc5 Qdd5 Bd6 Qdb7 Kf2 g3+ Ke3 g4 Kd4 g2 Kc5 g3 Rc1 Rg4 Rc3 Rg6 Ra3 Rg4 Ra8 Rg6 Ne2 g1B+ Nd4 g2 Re3 Bf2 Qe2 g1B Q8b5 Bg4 Nf3 Bh5 Nh2 Bf3 Kd4 Qbd5+ Kc3 Qdg5 Kd4 Qg2 Kc5 Kf6 Qc8 Bg7 Qd8 Bh8 Qb8 Rb7 Kc6 Kg7 Qf5 Rb5 Qd7 Rb6+ Kc7 Qeg5 Qde8 Qe7+ Kc8 Rg4 Rea3 Bd4 Re3 Kf6 Qb5 R8g6 Qe2 Kg7 Q8b5 Qf6 Q4c2 Qg5 Re8 Qe7 Qce4 Ra6 Bc2 Ba7 Bb3 Rb6 Be6 Bd4 Bf5 Rf6 Bg6 Re6 Bh5 Rf6 Qbd5 Rfg6 Qdb5 Qc7+
Br6/nB1k2n1/QRb2b2/1Q1nq3/BP1QN1r1/b2b1rPR/1qnB3K/5N2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 c4 a5 e4 h5 b3 d5 g6 h4 c5 h3 g7 a4 c6 h2 b6 a3 b7 d3 e5 f3 Kg3 a2 c7 d4 e6 f4+ Kf2 d2 g3 d3 e7 Nf6 g8Q Bd7 c8B Nd5 Qg5 Nc6 b8Q Na7 Qf5 Rh4 Nh3 Qa5 Na3 Rg4 Nc2 Bc6 Qc7 Rb8 Rb1 a1B Ne1 Bf6 Qe2 d1B Qee5 d2 Bb7 Be2 Ng5 Bd3 Ne4 d1Q Bd2 Qc2 Qed6 Qb2 Bg2 Qac3 Qb6 Qe5 Rg1 h1R Qd4 Rh7 Rh1 Rf7 Kg1 f2+ Kh2 f3 Nc2 f1N+ Kh3 f2 Ne3 Ba4 Qa6 Bc6 Qh5 Kd7 e8B+ Ke6 Bf3 Ba3 Kg2 Rf8 Rh3 Rf7 Nc4 Nfe3+ Kh2 Nf5 Ne3 Ke7 Nf1 Ng7 Ba8 Bb7 Ba4 Bc6 b4 Kd7 Ra1 Be7 Bh1 Rf3 Rc1 Bf6 Rc5 Qd6 Rb5 Qe5 Rb6 Bcb5 Qe8+ Kc7 Qe3 Rf5 Bf3 Nc3 Ng5 Bd7 Bfd5 Rf3 Bdb7 Nd5 Qd4 B7b5 Ne3 f1N+ Kg1 Bd7 Ne4 B7b5 Qc6+ Kd8 Qcc4 Bc6 Qcb5 Kd7 Ng2 Ne3 Kh2 Nc2 Ne3 Bg5 Nf1 Bf6
BRQ2B1q/r5B1/r1B3k1/3rb2n/1PP1nq2/4nNnN/1rbK4/1RNQ1q2 w - - 0 1 illegal: No possible last move
1N1nq1Qn/1n1B2R1/q1Q3q1/3nbPB1/3K3r/rk3P1N/2b1R1b1/R2Q2Rq w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 d5 c4 h5 b4 a5 g4 e5 c5 h3 c6 e4+ Kd2 d3 Ke3 d2 c7 h4 b6 d4+ Ke2 h2 b7 e3 Kd3 a4 b5 e2 b6 e1N+ Kc4 d3 Ra2 h3 Na3 Nc6 b8Q Bb7 c8R Qe8 Nc2 a3 Nf3 Nd8 Nb4 Rh4 Na6 Nh6 Ng1 Bd6 Nc7 Bf4 Qe2 d1N Bb2 d2 Na6 Nc3 Bc1 d1B Kd4 Bg2 b7 Nd5 Ra1 a2 Qd6 Nd3 b8Q Nc5 Qc6 Bc2 Qd1 Ncb7 Bb5 Ke7 g5 Nhf7 g6 Nh8 g7 Qg6 Nc5 Ra3 g8R Qe8 f3 Qg6 Rb1 a1Q+ Rb2 Qe8 Nd7 Qa2 Rc7 Qa1 Qc4 Kd6 Qc8 Qa2 Nb8 Qg6 Bd7 Qe8 Ne2 Qa1 Re1 h1Q Ng1 h2 Nh3 Qg1+ Be3 h1Q Rg3 Nb6 Qg8 Nd5 Re2 Qa2 Rb1 Qa1+ Kc4 Qf6 Ra1 Qfg6 Bc1 Qa7 Rg4 Qa6+ Kd4 Bg3 Bg5 Bh2 Be6 Bf4 Rg7 Rc3 Nd7 Ra3 Qa8 Kc6 Nb8+ Kb5 Bd7+ Kb4 Rg3 Kb3 Rg4 Nd6 Qc6 N6b7 Rg3 Bf1 Rg1 Bg2 Bc8 Qe7 Be6 Qee8 Bd7 Be5+
4rQN1/Bn5B/Rr1Bk2n/n2qPq1P/q4b1n/2KQ2Q1/1R1B2r1/N4b1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 b4 c5 h4 f5 e4 a5 b6 a4 b7 a3 b5 a2 b6 f3 d6 g3 e5 f2 d5 f4 h5 g2 Be2 f1Q Kd3 c4+ Kd4 f3 Be3 g4 Nd2 f2 Qc1 c3 Bh6 c2 Ne4 g3 Qe3 c1N Kc3 Nb3 Bd3 Ra6 Ne2 g1N Nd4 g2 Nc2 Nf3 Rh2 Nh4 Qg3 g1R Bd2 Nc6 b8B Nca5 b7 Nc5 Ba7 Rg2 b8B Rb6 Bc7 Ba6 Nf6+ Kc8 Bg6 Ncb7 Bh7 Nh6 Ng8 Kd7 Bcb8 Qd1 Bc7 f1Q Bcb8 Ke8 d7+ Kf7 d6 Ke6 Bc7 Qe8 d8Q Qf5 d7 Bf1 Bd6 Be7 Qc8 Bg5 d8Q+ Qd7 Qf8 Bf4 Qcd8 Qa4 Qd7+ Kd5 Qb5+ Ke6 Qbd3 Qf3 Rb1 a1R Rb2 Rb1 Na1 Qd5 Rh1 Be2 Rf1 Re1 Rf3 Rh1 Re3 Bf1 Re4 Nc5 Rc4 Ncb7 Rc6 Rb5 Ra6 Rb4 Be1 Rb6 Bd2 Qfe4 Qb8 Rh3 Ne7 Qf5 Qa8 Rf8 Ng8 Rh1 Qb8 Rf7 Qe8+ Re7 Qf8 Re8
b1q1QR2/3nN3/BB1Bq1n1/PRnN2k1/r1rP1b2/b2N3n/1bQ3K1/1q1B4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 Kf6 g4 c5 f4 h5 Kf2 e5 d6 b5 d7 e4 Ra2 h3 Qc2 e3+ Kg3 b3 Be2 h2 Bd1 b4 Na3 c4 Nb5 h4+ Kh3 c3 Qd3 c2 Nc3 e2 Qe4 e1B Kg2 b2 Nh3 b1N Rf1 h1N Nf2 b3 Rb2 Bb7 Nd3 Qc8 d8B+ Ne7 Bb6 Bg3 Bd2 c1B g5+ Kg7 g6 Kh6 f6 Nf2 g7 Ng6 g8B Ba3 f7 Nh3 f8N Nd7 f5+ Bf4 f6 Kg5 Nd5 Nc3 Qe2 Ne4 f7 Nec5 Bb4 Ra5 Qc2 Ba8 Rb1 b2 Rf2 Ne6 Bd6 Nec5 Ra1 b1Q Ra2 Qb7 Rb2 Qc8 Rb5 Bcb2 Rf3 Qc1 Bh7 Qe3 Rf1 Qe6 Bg8 Nge5 Ng6 Rh7 Ne7 Ng6 f8Q Qf7 Qb1 Na6 Bf3 Nf6 Nc6 Bh2 Rb3 Ng1 Nc3 h3+ Kf2 Qfd7 Bc4 Qe6 Qe8 Rc7 Qc2 Nd7 Ne7 Be5 Bg4 h2 Ncd5 Nh3+ Kg2 Bg3 Rf7 Bf4 Rf8 Rc6 Bb5 Rc4 Rb4 Nac5 Ba6 Bd2 Rb5 h1Q+ Kg3 Qb1 Bd1 Bdc1 Kg2 Bf4 Rb4 Rb5 Rb3 Rbb4 a5 Ra4 Rb4 Bd2 Rb5 Bf4
1q1RB1nk/2Brq2r/N1n1bqP1/4qbK1/2Rn4/RB2Q3/P2b4/1R1b1N1Q w - - 0 1 illegal: No possible last move, all moves rejected
1q3b1B/5q2/1B3rPb/1Q1Nr2B/K3kn1R/qP3R1Q/N1n2rb1/q2b1QB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kd6 Kc2 h5 Kb3 f5 e4 c5 g4 a5 b6 f3 g5 h3 g6 f4 b7 c4+ Ka4 h2 b3 c3 Bd2 h4 Nh3 c2 Qe1 c1B Ra2 f2 Kb5 f3 Ra1 a4 Nf4 h3 Be3 a3 Nc3 a2 Be2 f1Q Bg1 Na6 Ka4 f2 Bh5 Ne7 b8B+ Qc7 Ba7 Qb8 Bb6 Bg4 Rb1 a1Q+ Na2 Bd1 e5+ Kd7 d6 Kc6 e6 Nd5 d7 Nab4+ Ba5 Ra6 d8Q Nc2 e7 Rh7 e8Q+ Rd7 Q8e2 Re7 Qc8+ Kd6 Qf5 Re5 Qb5 Rc6 Bb6 Be3 Nd3 Beh6 Nb4 Nf4 d5 Qc4 Qc8 f1R Qe2 Rf2 Qf1 Re3 Rb2 Ke5 d6+ Ke4 d7 Qf7 d8B Rf6 Nd5 Ree2 Bd4 Re1 B8b6 Qc1 Qa5 Ree2 Rb1 Qa3+ Kb5 Rf3 Bgf2 Rc6 Nc7 Kd3 Rb2 Ne1 Nd5 Bc2 Bh8 Rf6 Qg1 Re5 Qg2 Ke4 Rf1 h1B Bg1 Bd1 Rd2 Nc2 Rd3 Be2 Rf2 Qc1 Ka4 Qb2 Qca6 Qc1 Qg3 Qb2 Rg2 Rf2 Rf3 Qc1 Qh4 Qb2 Rg4 h2 Qh3 Bg2 Rh4 h1Q Bh2 Qhb1 Bg1 Bd1 Qf1 Q1a1 Qab5 Qa3#
kB6/3rNR2/3qP1R1/1BN1q3/bb1nN1nK/1bN1B3/Q4nPr/Q2bq1q1 w - - 0 1 illegal: No possible last move, all moves rejected
5R2/3Qbbr1/q2P1b1N/nNRqRK2/3r1q2/1B2PBR1/1Q6/rnB2krq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 d4 f5+ Ke5 c5 g4 h5 b6 a5 g5 h3 b5 h2 g6 h4 d6 a4 d7 h3 b7 a3 b6 f3 g7 a2 d5 f4 d6 f2 Nf3 Nc6+ Ke4 Rh4 b8Q Nf6+ Kf5 Na5 g8B+ Nd5 b7 Be7 Ng1 f3 Ke5 Rd4 Bf4 Ra7 Ke6 Nc3 Bg2 f1Q Bf7 f2 Nf3 Bf6 Rg1 h1Q Nh4 h2 Qe1 Qh8 Nf5 Qh4 Bf3 Qfg2 Be3 f1Q Bc1 Be7 e3 Kd3 Bg8 c4 Na3 Nb1 Nb5 c3 Qc7 c2 b8R Bb7 d8R Bd5+ Ke5 Bf7 Nh6 Qfe2 Rf8 Rb7 Bd2 c1B Rbc8 Bb2 Bc1 Qef1 Qb4 Bc3 Be4+ Ke2 Bf3+ Kf2 Kf5 Ra7 Na3 Qa6 Qd7 Rb7 Rc5 Rc7 Bb7 Bb2 Re5 Qd5 Rg3 Kf1 Qb6 Qg1 Nb5 h1R Ba8 Qgg2 Bc6 Rg1 Bb7 Qgh1 Ba8 Qc5 Bf3 Qd5 Qb8 Nd2 Rb1 a1R Qb7 Bc3 Rb2 Nb1 Rc2 Rg4 Qb6 Rg7 Qd4 Rc4 Qd2 Bb2 Rc3 Rb4 Rc5 Rd4 Qc2 Bc3 Qb2 Be8 Qb4 Qb3 Ng4 Re4 Red5 Bcf6 Nh6 Rd4 Re5 Qc4 Bgd5 Bf7 Qb2 Qb3 Bde4 Qa2 Bc2 Qd5 Bb3 Qf4+
1N4r1/4KB1n/bR1Pq1b1/1rR3r1/QB1N2kb/PbQ1Qr2/n4n1q/4Q1B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 b5 g4 c5 f3 h5 d6 b3 f6 b4 d7 c4 Ke6 b2 f7 c3 a3 c2 Bd3 b3 Bc4 h3 Qe1 h4 Ne2 h2 Nbc3 b1B Nd4 b2 Nce2 h3 Nc6 Na6 Nb8 Nb4 Nd4 Qc7 d3+ Qf4 Be3 c1R Bg1 Ba6 d8Q Nf6 Qd7 Na2 Qa4 Nh7 Qe3 Bg7 f8Q Rf1 Qfe8 Rg8 Qe1 Bc2 Rc1 b1R Bd5 Bb3 Rc5 Qg3 f4+ Kh4 g5 Kg4 g6 Bf6 f5 Bh4 g7 Rf3 Kd7 e5 f6 e4 f7 e3 f8B e2 Qe3 Qe5 Qc3 e1Q Bc4 Qh5 Bf7 Ra7+ Ke8 Re7+ Kd8 Re5+ Kd7 Rg5 Ke7 Rh8 g8Q Rb2 Qg7 Rg8 Qge5 Qh6 Bf2 Qd2 Rf1 h1N Bg1 h2 Rb1 Nf2 Qe1 h1B Q5e2 Bc2 Qe3 Rb5 Rb2 Ra5 Rb4 Bb3 Rb6 Rb5 Ne6+ Rf4 d4 Be4 d5 Rf3 Nd4 Bg6 Rc4 Nh3 Ke6 Qh2 Bb4 Bgc2+ Ke7 Nf2 d6 Qg6 Rc5 Qf5 Qed3 Qd5 Qdd2 Bg6 Qde3 Qe6+
rb2q1Q1/R4qK1/q2P1nn1/n1nQ2P1/b1r2RQ1/N7/rNq1B1N1/k1N3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 f3 b6 f2 b7 a4 d6 c4 d7 a3 d5 f4 Ne2 f3 Bf4 c3 Bd2 a2 Qc1 h3 Ng3 h2 Ne2 h4 Bg2 f1Q Qb2 f2 Be3 c2 Nc1 h3 Qd4+ Qc4 Bf3 f1Q Be2 Nf6 Bg1 Rh4 Na3 Na6 b8Q+ Bb7 Ke6 Nc5+ Kf7 Bd6 e5 Qe8+ Kg7 Qe6 Qf8 Bb8 d8N Bc6 Qg4 Kc3 b4 Kb2 Qg8 Ba4 b5 Qf2 b6 Qa6 b7 Qff5 Qg2 Rc4 Qg4 Qe8 e6 Qd3 Nb3 c1N e7 Qc2 Ne6 N1d3 Nc1 Ne5 Nf4 Ng6 Ng2 Qe6 Be3 Qa6 Rf1 h1R Rf4 h2 d6 Rd1 Qd5 h1Q Bf2 Rd2 Bg1 Qeb5 e8Q Qh3 Qeg8 Qe8 Qgf3 Qhe6 Qg4 Ba7 Bd1 Re2 b8N Rf2 Nc6 Bb8 Na5 Re2 Ncb3 Rd2 Rc1 a1N Be2 Ka2 Rd1 Kb2 Nc1 Nab3 Rdf1 Ka1 Rd1 Rc3 N5c4 Na5 Nb2 Rc4 Rdf1 Nfe4 Rf7 Nf6 Ra7 Qc3 Nbd3 Ra2 Rf4 Qc2 Nb2 Q6f7+
q1Qq1K2/nNQr3R/1rP2QN1/1R2BR2/3Pbrkb/2nB3q/2Qn3r/n7 w - - 0 1 illegal: No possible last move
5QrB/NrqRq1Nk/bbPB1P2/Q6q/b7/n3nR2/2q1Q2K/rB2bQ2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 Kf7 g4 Kg7 c4 e5 f4 h5 Kf2 d5 Kg2 a5 f6+ Kh7 f7 e4 f5 a4 c5 a3 c6 h3+ Kh2 e3 g5 e2 b6 e1B b5 d3 f6 d4 b7 a2 b6 h4 Qg4 d2 Ne2 d1Q Ng3 d3 Na3 d2 Nf5 Nd7 b8B Bc5 f8Q Ra7 b7 Nh6 Qe2 Qe7 Bd6 Ne5 b8Q Nc4 Qb6 Ba6 Ng7 Qc2 Qa5 d1B Nb5 Rb7 Na7 Nf5 Be3 Rg8 g6+ Kh8 Bef4 Nfe3 Bh6 Bb6 Rb1 a1R Rb3 Na3 Bg2 Qd8 Be4 Qc7 Rd3 Qe7 Rf1 Qc7 Rf3 Qe7 Nf5 Qc7 g7+ Kh7 Kh1 h2 Rd4 Qc3 Bb1 Ba4 Qf1 Qc2 Qe7 Nd1 Qee2 Qe7 Re4 Qc7 Re7 Ne3 Rd7 Nec4 Kg2 Ne3+ Kh3 h1Q+ Bh2 Qg1 Bd6 Qg6 Kh2 h3 Kh1 Qf7 Kg1 Rd8 Kh1 Kg6 g8Q+ Qg7 Qh8 Qe7 Bg7 h2 Qe8+ Kh7 Bh8 Rdb8 Ng7 Ra8 Qf7 Rg8 Qf8 Ng4 Kg2 Ne3+ Kh3 Qd3 Rf2 h1Q+ Kg3 Qd5 Kh2 Qc2 Rf3 Qh5+
2B1NRn1/3rR1RN/1P4br/K6P/1BNRn3/nrb2r1Q/q1b4n/1k2q1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 f5 Kb4 g5 h4 a5+ Ka4 c5 b4 c4 e4 g3 h5 g4 b6 f3 b7 f2 b5 g2 b6 c3 Rh3 g3 Bd3 f1B Qf3 f4 Bb5 c2 Be2 Nd7 b8N Ra7 Ra2 Ndf6 Nc3 Bf5 Bd2 c1R Na6 Rd7 Rh4 Rh6 Nd1 Qa8 Nc7 Bg6 Ba6 Rb1 Ne3 Bg7 Nh3 g1R Ng5 g2 Qh3 f3 Nh7 f2 Bc8 Bd3 Rc2 f1N e5+ Ke7 e6 Kd6 e7 Ne4 e8R Nh2 Rf8 Rgf1 Rg4 g1Q Bc3 Rf6 Re2 Rf3 Rgg2 Qe1 Ne8+ Ke7 Rg3 Rb3 Nc4 Bc2 Rg4 Bh8 d6+ Ke6 Bb4 Kd5 Kb5 a4 Re3 Re7 d7 a3 d8Q+ Rd7 Qg5+ Be5 Re2 a2 Qe3 a1N Qg1 Qa2 Rg5 Bf5 Rg7 Bg6 Re3 Bd3 Re2 Nc2 Re3 Na3+ Ka5 Bc2 Re2 Nc5 Re3 Bf6 Re6 Be5 Ree7 Ke4 d5 Kd3 d6 Bc3 Qg5 Rc7 d7 Ne4 Qg1 Rb7 d8R+ Rd7 Ncd6 Kd2 Nc4+ Kc1 Rf5 Kb1 Rf8 Rc7 Rd4 Rd7
2rrn2R/3bN1PK/qN1P2b1/n1n2RR1/1bQ2B1N/q4bn1/3RBk2/q1Q5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 a5 b6 h5 d6 f5+ Ke5 f3 e4 h3 b7 f4 d3 f2 d7 a4 Kf5 Kd4 Kg6 c5 b4 h2 g5 c4 b5 f3 b6 c3 e5 h4 e6 h3 e7 a3 e8Q c2 Nc3 a2 Qe6 Nf6 Nd5 Ne8 Ne7 Na6 b8R Nc5 b7 Qa5 d8R+ Bd7 Bf4 c1N Be2 N1b3 Qc1 f1Q Qf7 Rg8+ Kh7 f2 g6 Qa3 g7 Na5 Rb1 a1Q Rb5 Qb3 Rbc8 Qba3 Rc7 Rc8 b8N Ne4 Rf5 Nc5 Bf3 Qe2 Rb7 f1B Rb5 Qe6 Be2 Qa6 Qa2 Bg2 Qe6 Bd5 Rg5 Bb3 Qg4 Bc2 Nf3+ Kc3 Nh4 Kd4 Rd1 h1B Rd2 h2 Qe6 Bf3 Qe4+ Kc3 d4 h1N d5 Ng3 Rf5 Nd3 Qe6 Kd4 Qf7 Ke4 Rg5 Nc5 Rf5 Be6 Nd7 Bd3 Nb6 Bd7 Be5 Ke3 Bf4+ Kf2 Qe6 Bb1 Qe4 Ncb3 Qec4 Bbe4 Nc6 Bd6 Ne7 Bb4 d6 Rf8 Rbd5 Nc5 Re5 Bd5 Rg5 Bf7 Ref5 Bg6+ Kh6 Nc7 Re8 Rf6 Rh8 Rff8 Rd1 Rfd8 Rd2 Bgh5 Kh7 Ne8 Kh6 Bf7 Kh7 Bg6+
Q2q1r2/5P2/2r1Qq2/1bBR1QBk/n2N1rb1/b1q2BR1/KB4Pn/3r1N1b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 h5 c4 d5 Kc2 a5 Kb3 e5 b6 h3 b7 h2 f6 Kg6 f7 e4 c5 h4 c6 e3 c7 e2 f5+ Kh5 f6 a4+ Ka2 h3 b4 a3 b5 d3 b6 d2 Qc2 e1Q Qa4 d1B Ne2 d4 Bf4 d3 Bh6 d2 Qe8 Na6 b8Q Nc5 b7 Ba4 Nd4 d1R Nd2 Bb5 Be2+ Bg4 c8Q Ra6 Bf3 Rc6 Bg5 Na4 Qa8 Nh6 Nf1 Qc3 b8B Bc5 Qe5 Rf8 Qee6 Be7 Rg1 h1R Be5 h2 Rb1 Bc5 Rb3 Be7 Qf5 Bb4 Qce6 Be7 Nd2 Bd6 Re1 Rf1 Re2 Rf2 Nf1 h1B Rd2 Bb4 Bd5 Rf4 Bf3 Rg8 f8B Be7 Bg7 Rf8 f7 Bb4 Bd6 Bc5 Nc2 Qcf6 Re3 Bb4 Nd4 Bc5 Kb3 a2 Rc3 Ba3 Bc5 a1Q Re3 Qc3+ Ka2 Rd6 Rdd3 Ra6 Re5 Rc6 Rd5 Re1 Be4 Rd1 Rg3 Bf3 Bh8 Ng4 Bg7 Nh2 Bh8 Bg4 Bf3 Qd6 Qe7 Qb4 Ne6 Qh6 Bb2 Qd8 Nd4 Qc3 Qee6 Qhf6
3q4/NB3PK1/RqnrBr2/5r2/2Q1BP2/1nn1B1qQ/1b1RN1b1/R2q1k1r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 b4 e5 f4 d5 c4 d3 c5 d2 g5 Ke3 b6 Kf2 c6 h3 g6 d4 b5 h2 b7 a4 c7 e4 b6 a3 f6 d3 g7 e3 f7 a2 Bh3 e2 Bd7 e1Q Ne2 Ba3 Qc2 d1R Qc3 d2 Qh3 Bb2 Bg4 Ra6 Na3 Ne7 Kh6 Nbc6 g8B Nd5 b8R Bb7 c8B Nc3 Rb1 a1N Nb5 Nb3 Kg7 h5 Na7 h4 Bge6 Rh5 Ra1 Rf5 Bh7 Ba8 Rg1 h1Q Rg2+ Kf1 Bb7 Qg1 Bg6 Qg3 Rc8 Re1 Rc7 d1Q Be3 Rf6 Rd7 Ra5 Rd6 Raf5 Rd2 Bc1 Rda2 Bb2 Ra6 Q1f2 Bbc8 Qg1 b7 Q1f2 b8Q Qg1 Bc1 Qgb6 Be3 Bb7 Qc7 Ba8 Qg4 h3 Bb7 h2 Qh3 h1R Qc8 Qb1 Qc7 Rd1 Qc8 Rd6 Qc7 Nb4 Qc4 Nc6 Nd4+ Ke1 Rd2 Qd1 Ne2 Nb4 Bbc8 Bg2 Bb7 Kf1 Rd4 Nc6 Rd2 Qf2 Bh7 Rfd5 Bd3 Rdf5 Be4 Qg3+
1R1rn1N1/N2QP2b/3q2Bn/4Q2b/b2rQ1B1/4q1q1/3PRbqQ/1n1k1KB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Ke7 b4 Kd6 g4 Ke5 d6 Kd4 b6 a5 g5 c5 b5 h5 b7 f5 g6 f3 d7 a4 b6 c4 g7 a3 e5 f2+ Ke2 c3 e6 f4 Rh3 a2 Rg3 c2 Rh3 Ra4 Ra3 h3 Rb3 h2 Nh3 h1B Nc3 h4 Ng5 h3 Nb1 h2 Nc3 Na6 b8Q Be4 b7 h1B Nb1 Nh6 g8B Bc5 e7 Nc7 Bh7 Ne8 Bg8 Bh7 Qc7 Bc6 Ba3 c1Q b8Q Qc3 Be6 Qg3 Ne4 B8b7 Qe1 f3+ Kd1 Ba8 Bd3 f1Q Nbc3 f2 Nf6 Qfg1 Bg6 f1Q Ng8 Qfg2 Bg4 Q1e3 Nb5+ Kc4 Rab1 a1N Na7 Nc2 Qe5 Bb6 Bb4 Na3 Bc5 Rb4 Bd4 Ba4 Rb2 Qc7 d8Q Nb1 Qd7 Qd6 Qe4 Bc5 Qg1 Bd5 Qh2 Be6 Qbc7 Bf7 Qa5 Bb6 Qae5 Bc5 B6f5 Bh5 Bg6 Qg5 Bg1+ Bd4 Qeb7 Bf2 Ke2 Q5f4 Re3 Qfd4 Qa8 Qc3 Rc2 Kb3 Qae4 Rc4 Ra2 Rd4 Ra3+ Kb2 Rb3+ Kc1 Rb7 Q2f3+ Kf1 Kd1 Re2 Qce3 Rb8 Nc7 Nf6 Rd8 Ng8 Ne8 Q4d5 Qh1 Qde4 Qhg2+
k1r1B1br/qR1P2br/qrR5/2q5/1bBBQ2n/2Bn1NN1/1N1P1q2/K5Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 c5 e4 Kc7 b6+ Kb7 b5 h5 g5 a5 e5 f5 g6 h3 g7 c4 d6 c3 e6 c2 e7 h4 e8N f3 Nf6 f4 Bb2 c1Q Nd5 f2+ Ke2 a4 Kd3 a3 Ne7 h2 Qa4 h3 Qe4+ Nc6 Nf3 a2 Na3 Qd7 Nc4 Nh6 g8B Nf5 Bc3 Nh4 Rb1 a1B Nf5 Qg7 Be2 f1Q Ng3 Be6 Bf7 Qf2 Nb2 Rc8 Be8 Bg8 d7 Bb4 Bd4 Qc5 Rhc1 h1R Bc3 h2 Kc2 Kb8 b7 Qgd4 Bc4 Ne5 Kb3 Ka7 Ka2 Nd3 Rc2 Rd1 Rcc1 h1R b8B+ Kb6 Bd6 Ka7 Be5 Qde3 Bed4 Rh7 Nh2 f3 b6+ Kb8 b7 Rdg1 Ne2 Rg6 Ng3 Rb6 Rc2 Qfe2 Rcc1 f2 Nf3 f1Q Rc2 Qff2 Rcc1 Qeg5 Rc2 Qee3 Rcc1 Qb5 Rc2 Ka7 Rcc1 Qgc5 b8Q+ Ka6 Qd6 Ka7 Qdg6 Qbc6 Rc2 Ka8 Qgg4 Qf4 Qg5 Qc7 Qge3 Rh2 Qe1 Rh3 Qg1 Qa7+ Na4 Rb5 Be6 Nf5 Be3 Ba3 Bf6 Rh8 Bd5 Qd4 Rb4 Bc3 Nb2 R3h7 Ka1 Nh4 Be6 Qdd5 Rb3 Bd4 Rc5 Qcb6 Rc6 Qdc5 Bc4 Qba6 Rb4 Ra5 Rb7 Rb5 Be5 Rb6 Bf6 Be5 Bg7 Bc7 Bc3 Be5 Bed4 Bg7 Bd5 Bb4+ Ba2 Ba5 Bc4 Bb4+
5n1q/2Pkb1K1/4r3/5RQb/1BN2rP1/1Br3rn/RqqB3n/B1qNQ2Q w - - 0 1 illegal: No possible last move
1BqR2b1/R1P1RP1B/2K3NN/1n5k/rn5b/1nqB3q/1Q3r1R/1Q1r1q1r w - - 0 1 illegal: No possible last move
1K6/P5qq/2rQ1qQN/1kr4B/1q1P3R/1bbn1N2/nNQRr1b1/B2Q1r2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 b5 g4 h5 a4 h3 d4 h2 d6 Kc6 g5 h4 f6 b3 g6 b4 f7 b2 f5 b3 d7 h3 f6 c4 a5 c3 g7 c2 a6 Bb4 f8N Rh6 f7 Bc3 a7 Nf6+ Kf5 e4 Ke6 e3 g8Q e2 Qd2 e1R+ Qe2 Nd5+ Ke5 Nf4 Na3 b1R Ng6 b2 f8Q Na6 Nh8 Nb4 Qf5 Na2 Nc4 Kb5 Nf7 Rc6 Nh6 Nd3+ Kd5 Qf6 d8Q Qg7 Qd1 Re2 Nf3 Ba6 Qdf6 Rac8 Qd6 Bb7 Bd2 c1Q Qfg6 Ba8 Q8h7 R8c7 Be1 Qf4 Bg2 Rc1 Bf1 b1Q Nb2 Qff6 Bd2 Nf2 Qgc2 Nd3 Qg6 Re4 Be2 Re3 Rf1 h1Q Rf2 h2 Rg2 Qe1 Rg4 h1B Rh4 Ba5 Bb4 Bg2 Bc3 Re4 Nd2 Bb4 Bh5 Re2+ Nf3 Qh1 Qdd2 Rf1 Qdd1 Nac1 Ra2 Ba5 Na4 Qb4 Ba1 Qh3 Nb2 Qhd7 Ra4 Na2 Ra3 Qh7 Ra4 Qdg7 Ra3 Ne5 Rd3 Rc8 Rd2 Nd3 Qe6 Rc5+ Kd6 Bb7 Rg4 Bd5 Rh4 Qff7 Qe7 Qff6+ Kd7 Bf7 Qf8 R8c6 Qd6 Bc7 Kc8 Ba5+ Kb8 Bb3 Qd7 Qa4 Qc7 Bc3 Qd6 Qb4
n2r4/PK1R4/BrRP1b2/3N1b2/2q1BrkN/Qq2B3/n4Qr1/2qbQ1qQ w - - 0 1 illegal: No possible last move, all moves rejected
2n1n1Q1/BB1N4/1q1QrB1k/1n3nb1/4PNbB/K4r1R/1nP2r1n/2rN2R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 h4 Kf7 b4 a5 e4 d5 h6 Kg6 h7 f3 b6 f2 h5+ Kh6 b5 g5 b7 g4 b6 g3 Ne2 a4 Bb2 g2 Kc1 g1N Nf4 d3 Bc3 a3 Bd4 a2 Kb2 d2 Qc1 d1N+ Kb3 Nd7 b8N Ngf6 b7 Nb2 Ba6 f1R Rh2 Be7 Nd3+ f4 Ne1 Nf3 Qd1 Ne8 Bd3 Nh4 Nc6 f3 b8Q f2 Rh3 Ra6 Ng2 Nb6 Nc3 Rf8 h8B Bg4 Ne5 Nf5 Nf4 Nc8 Ba7 d4 Bf6 Re6 Ba6 d3 Bh4 d2 Nd7 Bg5 Ka3 Qb6 Bb7 Rff6 Qd6 Rf8 Qe2 d1N Qc4 Rff6 Rc1 a1R+ Qa2 Na4 Rb1 Ndb2 Nd1 Nc3 Rc1 Rg1 Rb1 f1N Rc1 Rg3 Rb1 Kh7 h6 Rf3 Rc1 Nh2 Rb1 Kg8 h7+ Kg7 h8B+ Kh6 Rc1 Rf7 Bf6 Rb1 Ne3 Rf8 Rg1 Rc1 Nd1 Rf2 Nh5 Nd4 Qb3 Re5 Qg8 Re6 Be5 R8f3 Bf6 Nf5 Nf4 Nb5+
bb3B1r/1n2QbbR/1R2N2n/2B1P1N1/k3qb1b/1N5B/r2PK2n/3Bn1Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 e4 Kd7 b4 f5 g4 c5 b6 Kc6 b7 Kb5 g6 h5 g7 a5 g5 a4 g6 h4 Nf3 a3 Ng5 a2 Qh5 f3 Bb2 f4 Bd4 h3 Na3+ Ka4 b5 c3 b6 h2 Be2 c4 Rf1 h1B Rb1 a1B Rb2 f2+ Kd1 f3 Qh6 c2+ Kc1 Nd7 b8Q Nc5 b7 Bd6 Qh4 Be6 Bd1 Qe8 Rb6 Bf4 Nb5 Bf7 Nc7 Nh6 g8N Bg2 Rh1 f1N g7 f2 Nf6 Ne3 g8B f1N Nce6 Nh2 Qe5 Bc3 b8B Nb7 Bc5 Bd4 Qd5 Bde5 Ba7 Bb8 Qd4 Bf3 Bb4 Ng2 Nd7 Ne1 Bf8 Bg2 Qg1 Bf3 Nd4 Qe5 Nb3 Qf5 Kb2 c1B+ Kc3 Ba3 e5 Qe4 Bh7 Be7 Bf5 Bf6 Bh3 Bg7 Bd6 Bg2 Nf8 Bf3 Nfe6 Bg2 Kb2 c3+ Kc1 c2 Bf8 Bf3 Qhf2 Bg2 Qc5 Bf3 Qe7 Bg2 Kb2 c1B+ Kc3 Bf3 Bf5 Ba3 Bh3 Qf5 Kc4 Bc5 Kc3 Bf2 Kc4 Bh4 Kd4 Bfg3 Ke3 Bc6 Ke2 Bf4 Qg3 Bd5 Qg1 Qe4+ Qe3 Nd8 Qc7 N6g4 Bf1 Bhg3 Ra6+ Kb5 Na1 Nhf3 Rh7 Nfh2 Bac5 Bh4 Nb3 Nh6 Bh3 Ra7 Rd6 Ra2 Rb6+ Ka4 Qd6 Ba8 Qe7 Qg6 Qg3 Nb7 Qg1 Qe4+
Q1Q2Rrr/1Bnr2R1/2N2b1q/Pk2N1Q1/1n3bb1/3P2bK/1B1b1br1/2BB4 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 f4 Kd7 Kf2 c5 Kg3 g5 h4 e5 a4 b5 h5 c4 h6 b4 d3 b3 d6 Kc6 a6 e3 a7 b2 f5 e4 h7 e2 d7 e1B+ Kh2 g3+ Kh3 e3 f6 e2 a5 g2 f7 g4+ Kh2 c3 Na3 b1R Bb2 g3+ Kh3 c2 Be5 c1B Bg7 Qg5 Nc2 Bf4 Qc1 Na6 Bb2 Be7 f8B Nc7 Bh6 Bf6 Qd2 Ne7 Nb4+ Kb5 Nf3 g1B Nc6 g2 Nfe5 Bgf2 Rg1 Ned5 Qe3 Rg8 h8Q Nb4 Qc1 Bb7 d8Q Bed2 Qc8 e1B Be2 Rb8 Rf1 g1R a8B Rg2 Bd1 B2g3 Ra2 Bef2 Qc5+ Ka6 Qe7 Kb5 Qed8 Qg6 Qg7 Qh7 Qg5 Rc1 Ra1 Rc5 Rc1 Rd5 Rc4 Rd7 Rd4 Re7 Rd7 Reg7 Rf7 Rh8 Rf8 Rd7 Rg1 Qg7 Ne7 Be4 N7c6 Bf3 Bb7 Rg8 Bc1 Qg6 Bg7 Bh5 Bh8 Ra8 Bg7 Qh6 Bh8 Ra6 Qa8 Ra7 Qdc8 Rh7 Bg7 Rhh8 Rf7 Ne8 Qh4 Bd8 Nc4 Bh2 Rf8 Rg4 Bgb2 Bf6 N4e5 R4g7 Qab8 Rg4 Ba8+ Rb7 Qa7 Rd7 Bb7 Nc7 Qaa8 R4g5 Rg3 R5g6 Rf3 Rg1 Rg3 Rg2 Rg7 Bhg3 Qg5 Bg4+
rB1nBrk1/B2n3b/1Rn1b1N1/2Rb3N/1R1b2P1/Q4Q1P/2qn3r/KB1r4 w - - 0 1 illegal: No proof kernel
3b1q1Q/KB1kNN2/2bB3Q/1N1Q2nq/1rnPq2p/3b4/2r2Pnr/Q1R1R3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 e5 Ke3 h5 g4 a5 d4 c5 b4 h3 d6 h2 g5 a4 g6 c4 g7 a3 b6 c3 b7 a2 b5 c2 b6 Ra4 Bg2 Be7 Nf3 Nf6 g8N Nh7 Nh6 Nd7 b8Q Ba6 b7 Ng5 Bd2 c1R Re1 h1B Na3 Rc2 Nf5 Rb4 Nb5 Nb6 Rc1 a1Q Bc3 Bf6 Ne7 Qa5 Qd2 Rh7 Qa8 Kd7 b8Q Qf8 Bb2 Rh8 Ba3 Nc4+ Ke2 e3 Kd3 e2 Qbb7+ Qc7 Qd5 Qa5 Qf4 Ne6 Qh6 Ng5 Ng6 Bd8 Ne7 Nf7 Ng5 Rh7 Rf1 e1N+ Ke4 Rh8 Bf3 Ng2 Rfe1 Ra2 Kd3 e4+ Kc3 e3 Be4 Nfe5 Nf7 Nf3 Kd3 e2 Kc3 Rbb2+ Kd3 Ng5 Bc5 Qb6 Kc3 Rc2+ Kb4 Rab2+ Ka4 Rb3 Bb4 Qc5 Ba3 Nb6+ Ka5 Rb4 Bf3 Bb7 Be4 Bc6 Ka6 Rh7 Ka7 Rh8 Rg1 e1Q Bf3 Qe4 Rge1 h4 Qa2 Rg8 Qa1 Bd5 Qb8 Bc4 Qa8 Bd3 Qb8 Qe2 Bb7 Qd5 Qa8 Qde4 Qb8 Rg6 Qa8 Nc4 Qb8 Ke6 d7 Qh5 Qa8 Bc7 d8Q Ba5 Qb6+ Kd7 Qf6 Bd8 Qfg7 Rf6 Qgh8 Rf3 Rcd1 Rh3 Rc1 Rbb2 Bd6 Rh2 Ba6 Rb3 Qd5 Rb4 Bb7 Qee2 Ka6 Nf4 Qde5 Bc6 Ka7 Ng2 Qd5 Qe4
rqq2b2/n1Q1KB2/2NR3R/bb1q1Nnp/rN6/PnRP3k/1RQ5/3rB3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 Ke4 c5 g4 b5 f4 c4 g5 c3 a3 h3 d6 h6 Kd5 h2 f6 c2 g6 e4 f7 e3 f5 b3 f6 b2 g7 b4 Ne2 b3 Ra2 Ba6 Ng3 e2 Nc3 b1R Nf5 e1B Bc4 b2 d3 Bb5 Bd2 c1N Qc2 Ra4 Kc5 Qe8 Nd5 Nc6 Nb4 Qc8 Bd5 Ra1 Bc3 b1Q Rb2 Bd2 Ba2 Nb3+ Kd5 Be7 f8Q Na7 f7 Nf6+ Ke5 Nh7 g8R Ng5 Qg7 Bf8 Kf6 Be1 Qh7 Bd2 Rg6 h5 Rc1 h1Q Rh6 Qd5 Qg7 Kd8 d7 Kc7 d8N Kd7 Ndc6 Rg8 Qh7 Bg7+ Kg6 Ke6 f8R Rh8 Rd8 Rf8 Be5 Rg8 Bg3 Re8 Be1 Rf8 Na6 Ba5 Nab4 Re8 Ncd4+ Ke5 Ndc6+ Kf4 Rd7 Kg4 Rd6 Be5 Qc7 Kh3 Qc4 Bg7 Rc3 Qd7 Qc5 Ra8 Qf2 Qc8 Qc2 Bf8 Kf6 Bg7+ Ke7 Qc1 Rhf6 Qf4 Rh6 Rd1 Ne3 Qfd4 Nf5 Qb6 Rd7 Qbb8 Rd8 Na1 Bc4 Nb3 Rdd6 Qd4 Be6 Qd5 Bf7 Bf8+
1r1Bq1K1/Rbr3QN/1b2B3/1QR2pbr/N1n3kP/2R1Pq2/nB4nB/1q6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kf6 h4 Kf5 b4 a5 d6 g5 d7 c5 b6 f3 Ke3 g3 b7 f2 d5 g2 b5 c4 Kd4 g4 d6 a4 Kd5 a3 b6 g3 Be3 a2 Qd2 c3 Bd4 c2 Nc3 c1N Na4 Nh6 Nf3 g1B Qb2 g2 Rh3 Ng4 Ng5 Bh6 Nh7 Nc6 b8Q Na5 b7 Bg5 Rc3 Qe8 d8R Nc4 d7 f6 Qa7 Rb8 Qb1+ Kf4 Qb5 f5 Bf6 Nge5 Bg7 Nf3 Bd4 Ne1 e3+ Kg4 Bd3 f1Q Bc2 Qf4 Bb3 Bh2 Bg7 g1R Qd4 Qf8 Ke6 Ng2 Qde5 Qf3 Qf6 Qc5 Kf7 Qe5 Rg8 Rd1 d8B Rd7+ Kf8 Rc7 Qf7 Nb2 Be6 Nc4 Qg6 Qee4 Bd4 Be5 Qg7 Bf6 Be5 Qc6 Bh2 Bd4 Be5 Bb6 Bef6 Ra8 b8B Bb7 Bd4 Nb3 Rac1 a1Q B4f6 Qb1 R1c2 Rc8 Bh2 Nc1 Kf7 Na2 Re8 Kh5 Re7 Kg4 Rc7 Rab8 Re7 Ba8 Ra7 Bb7 Bfe5 Na3 Rc5 Nc4 Bb2 Qce4 Rc3 Rc6 Nf8 Rh5 Nh7 Rc7+ Kf8 Qc6 Kg8 Qe8+
1q1k2NN/1nR3b1/B4N1n/3Pq1P1/6Nr/RQKrp2n/bBb2Rq1/r3Q3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 h5 d4 a5 Kd2 e5 b4 c5 f4 e3+ Kd3 h3 f5 e4+ Kc3 c4 b6 e2 b5 e1Q+ Nd2 h2 f6 h4 b7 h3 b6 a4 g5 a3 d6 a2 Kc2 c3 Bb2 Nc6 b8Q Rh4 b7 Na5 Ngf3 Be6 Ba6 Bg7 Ne5 Nh6 Ng4 e3 Qe2 Qg3 Ne4 Qg2 Rhc1 h1B f7+ Kd7 f8R h2 Kd3 c2 Qe1 Qc8 Rf4 Kd8 d7 Bb3 d5 Ra7 Rd1 c1Q Nef6 Qc7 Rf2 Qe5 Ng8 Ra8 Rac1 a1R Rc7 Ba2 Kc2 Ra7 Rd3 Rd1 Ra3 Rd4 Kc3 Ra8 Qa7 Qb8 Qc5 Qh3 Qa7 Be4 Qb6 h1N Qb4 Qg2 Qb3 Qc8 b8N Bc2 N8f6 Ra7 Ng8 Nb7 Rf7 Qeh2 Bc4 Nf2 Ra5 Nh3 Rf2 Bab1 Ra2 Ra3 Ba6 Qd6 N8f6 Ke7 Nc6+ Kf8 d8N Qe5 Ra1 Qb8 Nf7 Raa4 Nh8 Ra3 Ne4+ Ke8 Ne7 Kd8 Nef6 Ra2 Neg8 Raa4 Ra3 Ra5 Qc4 Ra4 Rb3 Ra1 Ra3 Ba2 Qb3 Rd3+
1k3r2/2n2rN1/3NqQ1P/rPbp2R1/1qb3n1/2bQnq2/5B2/R1KBN1RN w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 f4 e5 h4 g5 c4 d5 b4 Kd7 h5 Kc7 c5 a4 f6 g3 h6 e4 c6 d3 f5 g4 f7 a3 f6 e3+ Ke1 g2 Ne2 g1Q Nd2 g3 Nf3 g2 Ng3 e2 Kd2 a2 Ne1 Qf2 Rg1 Qd7 Nh1 Na6 b6+ Kb8 b7 Bc5 f8N Qf3 f7 Nf6 Ne6 Nc7 f8Q Ng4 Qf6 Rf8 Ng7 Ra5 b5 Qe6 Bb2 Bd7 Kc1 d2+ Kc2 Be8 Bd4 Bh5 Bf2 Bg6+ Kb2 Bd3 Qc2 d1N+ Kc1 Bc4 Qd3 Ka7 b8R Nde3 Re8 Rf7 Rh8 Rf8 Rg8 Kb8 Nc2 e1B Be2 Bc3 Bd1 Ra7 Ne1 Rb7 Nf5 Ra7 Rg5 Ra5 Rb1 a1Q Ng7 Qa4 Ra1 Qa3+ Kb1 Qb4+ Kc1 Ne8 Rf1 g1R c7+ Kb7 c8N Nc7 Nd6+ Kb8 Ndf5 Rg3 Nd6 Rh3 Rg1 Rh5 Rg6 Rf5 Rg5 Rf4 Qe5 R4f7 Qef5 Rg8 Qf6 Rgf8
8/1nB1qnR1/r2PN3/1brQp1KQ/4r3/RbNNnBQ1/2k1P1Q1/1q1q2b1 w - - 0 1 illegal: No possible last move
5Kr1/2R1B3/1q1pbNQP/1qNn1B2/4rn1Q/Q1P1bnqQ/3Rr3/1B2k1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 h4 f5 b6 a5 b7 g5 h6 g4 b5 d6 b6 a4 c3 d3 h7 f3 h5 f4 Nd2+ Ke3 Kd5 Kf2 e4 a3 e5 g3 e6 a2 e7 g2 e8B Ra7 Qc2 Nc6 b8Q Ke1 b7 f2 Nb3 f3 Nc5 d2 Ne2 g1B Qg6 d1N Ng3 Bh6 Nge4 Be3 Bh3 f1Q Nf6 f2 Bf5 Qb5 Rh2 f1Q Qa8 Nf2 b8Q Rg7 Qa3 Nd3 Rd2 Qf2 h6 Bd7 Qc8 Qdb6 Rb1 a1R Bf7 Be8 Ke6 Nge7 Qd7 Rf8 h8Q Nd5 Rb4 Qh4 Rc4 Qg3 Bg8 Ra2 Bh7 Rff7 Qf8 Nce5 Qfe7 Nf3 Qc8 Rg8 Qed8 Ra7 Qe7 Bd7+ Kf7 Rg7+ Kf8 N3f4 Bb1 Bc6 Qh3 Bd7 Qee4 Be6 Qd4 Nd3 Qdh4 Rge7 Qg8 Rb2 Bf5 N3f4 Qg6 Rb4 Na6 Rab7 Rc7 Re4 Nc5 Ra7 Qb2 Ra2 Qa3 Rg7 Rc2 Nh5 Ne8 Bef2 Bg5 Nhf4 Be7 Be3 Nf6 Rb2 Rd2 Rc2 Rd4 Re2 Rd2 Rg8+
1R1br3/kqNr2pK/n4B2/3bq3/Q4QB1/r1RB1RnP/P3q1n1/1bN2R2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Kg4 c5 Kf5 c4 d4 f3 e4 f2 h3 b3 e5 Kc7+ e6 Kb7 h6 b4 d6 b2 h7 c3 d5 b3 d7 c2 d6 Qe7 d8Q Ra3 d7 Na6 Qa5 Ka7 d8R Nf6 Bd3 f1Q+ Qf3 Nd5 Qa4 Qe2 Nc3 b1Q Bg5 c1R Qff4 b2 Bf6 Bb7 Rc8 Rd1 Rc5 Qe8 e7 Ne3+ Kg5 Rd2 Nd5 Ng2 Nc7 Bd5 Rc3 Qb5 e8B Be7 Rh2 Bd8 Bd7 Re8 h8R Qbe1 Rh1 Qb7 Bg4 Rd1 Rac1 b1B Rg8 Rd2 Rd1 Qg3 Rf1 Qge3 Kh5 Qe6 Rf3 Q6e5+ Bg5 f5 Kg6 Rd1 Bf6 Rd2 Qh2 f4 Kh7 Qf2 Ne2 Rd1 Re3 f3 Nc1 Qe2 Qhf4 f2 Rf3 f1N Rf8 Ng3 Rhf1 Bc4 Be4 Rd7 Bd3 Bd5 Rh8 Re6 Rg8 Be7 Rc8 Bd8 Rb8 Re8
1rq2Q2/3P1Kb1/2b1pn1b/3R2N1/N1B1PBqk/nn2r3/q2QRN2/1BN4r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kf2 c5 h4 f5 b4 Kf7 d4 Kg6 e4 Kh5 b6 a5 g6 g3+ Kf3 a4 b5 a3 g7 a2 b7 g2 d6 c4 b6 c3 d5 c2 d7 Na6 b8Q Nb4 b7 Nd3 d6 Nf6 g8B Bh6 Ne2 g1R Bc4 e6 Nbc3 Qc7 d8Q Qb6 Na4 Qb1 Rh2 Nc5 d7 Nb3 Qa5 Rd8 Qd2 Rh1 Qbd6 Qb2 b8N Bb7 Na6 Bc6 Nb4 Rdb8 Nd3 Ra5 Rb1 a1B Qf8 Qa2 Nf2 Rc5 Bd3 Rc3 Rg2 Na5 Rb6 Nc4 Rb5 Na3 Rd5 Rcb3 Bb2 c1N Be5 Rc3 Rh2 Nb3 Nc1 Rc5 Bb1 Rc3+ Kg2 f3+ Kh3 f4 Bc4 Re3 Bc7+ Be5 Bd6 Kg6 h5+ Kg5 Bc7 Bg7 h6 Kh5 h7 Bh6 h8N Kg5 Nd1 f2+ Kg2 f3+ Kh3 Kh5 Bd6 Kg5 Nf7+ Kh5 Ng5 f1Q+ Qg2 Bb2 Bf4 Qg1 Qd2 f2+ Bg3 Kg6 Kh4 f1Q Bf4 Qd3 Nf2 Qd4 Nfh3 Qc5 Re2 Qd1 Qd8 Qf8 Qe7 Qc8 Qf8 Nh7 Kg4 Bbg7 Nf2 Qg1+ Bg3 Qg2 Kf4 Nf6 Ke5 Kh5 Bf4 Qg1 Kd6 Qg2 Ke7 Qg4 Kf7 Kh4
1Q3Q2/1KB1b2b/2rN3R/2nnR1R1/Bkr4N/Nq1pPr2/1n1R3P/b1b2b2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 f5 b4 a5 c3 g5 h6 a4 b6 a3 Kb5 g4 c4 f3 b7 f4 h7 f2 Bd2 a2 Nf3 g3 Qe1 g2 Ng1 d3 Na3 f3 Rd1 Na6 b8R a1B c5+ Kd5 c6 Be7 c7 Nc5 Kb6 Ra4 b5 Nf6 Bg5 d2 Bf4 Rc4 Bd6 Rg8 h8R Rg6 Rh6 Qg8 Bf4 Bb7 c8N Kd4 Bd6 Kc3 Bc7 d5 Nd6 d4 Re8 Be4 Ka7 Bb1 b6 Nd5 b7 Kb4 Kb8 Qe6 Rg8 Rf6 Rg5 Bh7 Ka7 Qe3 Re5 Qb3 e3 d3 Be2 f1B Qh4 f2 Qf4 Re6 Nf3 g1B Qf8 Rf6 Nh4 Rg6 Rb1 d1N Rb2 Rf6 Rd2 Nb2 Bd1 Rg6 Ndb5 Rc6 b8Q Bg2 Bg4 f1R Bd1 Bf2 Rg1 Be1 Bc2 Bh3 Rgg5 Rf3 Bd1 Bf1 Bc2 Qc3 Ba4 Qb3 Nd6+ Nb6 Rdg2 Bd2 Rf2 Bc1 Rd2 Nd7 Kb7 Nd5 Rgg6 Rg3 Rg7 Rf3 Rgg5 Nc5+
n1K2n2/2Qr1b2/4B1B1/1bQ2RBn/n1qpQr1N/n2RN1b1/PP5B/1rk5 w - - 0 1 illegal: No proof kernel
1RrN4/1rn1rr2/1BR2rR1/Q1b2Pq1/3NP1kB/3K1p2/b3Bnbn/3Q2R1 w - - 0 1 illegal: No proof kernel
4b2B/2KQ1rn1/1n2RQ1p/6N1/1r1b1bbq/1P1P2B1/B1N2b1B/2R1nRrk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 g4 c5 g5 f5+ Kd3 Ke5 Kc4 Ke4 b3 h3 g6 a4 d6 f3 d7 f4 e3 h6 b6 a3 Kb5 h2 b7 a2 g7 f2 Nf3 c4 Bg2 f1R Rg1 h1B Qe1 c3 Qh4 c2 Qg4 Ne7 g8Q Nf5 Na3 Bc5 Bb2 c1B Q8g5 Rh7 Bh8 Ng7 Qf6 Ra4 Nc2 Ba7 Rb1 a1B Bh3 Re1 Rf1 B1d4 Bg2 Qe7 d8B Nd7 Kc6 Rb4 b8B Nb6 Bdc7 Bd7+ Kb7 Be8 Qd7 Qd8 Bh3 Bg2 Be6 Bh3 Bf7 Bg4 Ng5+ Kd3 e4 Ke2 e5 f3 e6 f2 e7 Rd1 d3 Bf4 Bh5 Re1 Ra1 Rb1 Rc1 f1N Kc6 Kf2 Kb7 Be6 Bd1 Kg1 Kc6 Nd2 Be5 Bh2 Bg3 Bg4 Bbe5 Kh1 Bc7 Bg6 e8R Nf3 Re6 Ne1 Bce5 Qe7 Kc7 Be8 Bd6 Bhg1 Bh2 Bgf2 Bdg3 Bfe3 Na3 Bd2 Bc2 Bf4+ Kc6 Rb2 Bb1 Rg2 Nc2 Rg1 Ba2 Qd8 Qe5 Qe7 Kc7 Qf6 Ne4 Qh4 Ng5 Nh5 Qd6 Rf7 Rab1 Ng7 Ra1 Nf3 Rf1 Ne1 Rc1 Bfe3 Qf4 Bf2 Qf6 Bb8+ Kc6 Bf4 Kb7 Bf4e3 Kc7 Bf4+
1B2n3/3R2Q1/5Prb/p3qk2/2rRb2r/bPRNb3/BNnK2RQ/b4nB1 w - - 0 1 illegal: No possible last move
Bb2K3/2br1r1Q/n3p1r1/NR2r1B1/3Q2qb/QP3R1n/2r1P2N/QR3n1k w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 Kf7 Kd3 Kg6 Ke4 d5+ Ke5 a5 Ke6 h5 f4 h4 c4 d3 g5 Kh5 Kf7 Kg4 f5 e6 g6 h3 c5 d2 f6 d4 b6 a4 b3 h2 g7 a3 b7 a2 c6 d3 c7 Ra5 c8Q Nh6+ Kg6 Rg8 f7 Qh4 Nc3 Be7 f8Q Re5 Qc6 Na6 b8R Nf5 Kf7 Ne3 Nh3 g1N Qc7 g2 Qcc8 Kg3 Qfd8 Qg4 Rb1 a1B Rb5 Bh4 Nf2 Nh3 Qc5 g1B Bg2 Nf1 Na4 Bb2 Qe1 d1R Qa3 Rd2 Ba8 Rc2 Nb6 d2 Qd4 d1R Bg5 Bc3 Ke7 Ba5 Nc4 Bc7 Na5 Rf8 g8Q Rf7+ Ke8 Rd3 Qdb4 Rdd7 Qh7 Bb8 Qd4 Bc7 Ne4+ Kg2 Qec3 Bgf2 Qca1 Bfg3 Nd2+ Re4 Ndc4 Bb8 Nd2 Bgc7 Nf3 Re5 Re1 Ne3 Rhf1 h1R Rc1 Rg1 Rb1 Kh1 Rf2 Nf1 Nh2+ Rg2 Rf3 Qe4 Bf4 Rg6 Bg5 Qg4
3R2Qn/2q3n1/NnPBNnrB/N1P2pK1/2Rb4/1BrQ1b2/n6B/1rk1b3 w - - 0 1 illegal: No possible last move
BrnBQ3/2RK2Nr/P2nrr1n/kqp4N/rb2bQ2/1Pb2R2/R3B3/2R5 w - - 0 1 illegal: No proof kernel
7N/N5nP/bn3r1Q/k1K1NpRb/2Q4Q/r2b1B2/Qq1P1B2/b2r1Rbn w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 e4 b5 a4 g5 h4 c5 a5 Kc7 a6 Kb6 d6 g4 h6 b3 d7 f3 Ke3 b4 a7 f2 e5 b2 h7 g3 h5 c4 Kd4 g2 e6 b3 h6 c3 e7 c2 e8Q Bg7+ Kd5 Ne7+ Kd6 Ba6 Rh5 Rf8 Nc3 b1B h8N b2 Be2 f1N h7 Ng3 Rg5 Nh1 Nf3 g1B Ne5 Nf5+ Kd5 Qc7 d8Q Nd7 Bf3 f6 Qde7 Qb8 Qe2 Ba2+ Qc4 b1B Bb2 c1R Qc8 Bd3 Nb5 Rd1 Qc6+ Ka5 Bd4 Nb6+ Kc5 Rf7 Rc1 Bab1 Bf2 Be2 Bd5 Bh5 Bf3 Bd3 Qd8 Bf8+ Qcd6 Ng7 Q8e7 f5 Qh6 Rf6 Rb1 Qb7 Rc1 Rd8 a8Q Rd4 Rb1 Rh4 Na7 Rh3 Qd6 Be7 Rc1 Bd8 Qdd4 Qb8 Qh4 Bc7 Nd7 Be5 Qad5 Ba1 Ne5 Rg3 Qg8 Rg4 Qa2+ Ra4 Qgc4 Ra3 Rc3 Rb1 Rc1 Qb7 Rf1 Rd1 Nb5 Na8 Na7 Qb2 Qhe4 Nb6 Qf4 Bc8 Qh4 Ba6
rN1nn1rR/5kP1/1bqnRb2/2b2BR1/B3P1QQ/4r3/1p2RN1B/1bb3K1 w - - 0 1 illegal: No proof kernel
1n1r3r/N2bR1Pb/1P1kp1nQ/3rbBK1/3N1nrr/1R3QBR/1Bq5/3R4 w - - 0 1 illegal: No possible last move
4r2N/bQ1BbP2/2Q1r3/n2N3b/2n1RKrR/B2B1nRr/1rPp1qBk/8 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 a5 b4 d5 b6 h5 b5 a4 f5+ Ke5 b7 Kf4 g6 Kg3 f6 e5 b6 h4 g7 h3 f7 h2 g5 d3 Ke3 d4+ Kd2 a3 g6 e3+ Ke1 e2 Kd2 e1N Be2 e4 Bh5 a2 Nh3 Nf6 g8B Nc6 b8R Na5 g7 Bg4 b7 Ne8 Bh7 Rg8 Bb2 Be7 Nc3 Nd6 Bf5 Qb6 Bd7 Qa7 Bg6 Bh5 Nd5 Re8 Rc8 Rb8 g8B Qc5 Rb1 a1B Ba3 Qb6 Rb3 e3+ Kc1 e2 Kd2 Qa7 B8h7 Qc5 Nhf4 Nf3+ Kc1 e1R Be4 Re2 Ng6 Ndc4 Nh8 Bc3 Re1 h1R Qd2 Rh4 Qh6 Rg4 Qc6 d2+ Kd1 Ba1 Bd3 Rh2 Re4 Rh3 Ke2 d1R Rc7 Kh2 Kf2 Ra8 b8Q Ra6 Qbb7 Rb1 Bf1 Qb6 Bg2 Rb2 Rbe3 d3 Bg6 Nd4 Rg3 d2 Bgf5 Nf3+ Ke2 Rg7 Rh4 Rg4 Bd3 Rb8 Rc8 Qd4 Rg8 Re8 Rg6 Qg1 Re6 Rab6 Re4 Qc5 Qcc7 Re6 Qd6 Ra2 Qdc7 Bd4 Qcc6 Rb2 Nf4 Qf5 Nd5 Ne3 Kf2 Ba7 Ke2 Qf6 Kf2 Nec4+ Ke2 Nb6 Ke3 Ne5 Rb4 Qf1 Rf4 Qf2+ Ke4 Nbc4 Kf5 Nf3 Re4 Rg7 Kf4 Rg4+
2N2Krr/1rRP3N/kq1QP2n/r7/2pnn2b/1b1R3b/1r5Q/BQ1B1Q1B w - - 0 1 illegal: No possible last move, all moves rejected
1B2b3/1P1n1k2/rp2N1b1/nbR1Qn2/BbrN4/5bq1/Pr1QRR2/3N2KN w - - 0 1 illegal: No proof kernel
1B5Q/nb3n2/1r1R2Rr/qR1K1nQN/1nR1B3/6BP/1Pn2pr1/1qNkb3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 c5 b6 g5 b7 a5 h3 f5 Be2 f3 Ke3 f4+ Kd3 a4 Kc4 g3 Rh2 g4 Nd2 a3 Rb1 a2 Rg2 a1N Bf1 f2 Qa4 f3 Nb3 Qa5 Qe8 Ne7 Be2 f1N Bg5 f2 Bf3 Rh6 Rh2 g2 Bh4 g3 Qb5 Ra6 Ne2 g1R Nbc1 g2 Nf4 Nbc6 Bg3 Na7 b8R Bg7 Nh5+ Be5 Rh1 Nc2 Ra1 Rc6 Ra4 Rb6 Rh2 Nec6 Rh1 Kd7 d6 Ke6 d7 Bb7 d8B Bg7 e5 Kf5 Kd5 c4 e6 c3 e7 Nfe3+ Kc5 Kg5 d5 Nf5 e8Q+ Bf6 Kc4 Be7 Bdc7 Bb4 Bh2 Kh4 d6 Kg5 Be4 Kh4 Qh8 Kg5 Ng3 Kf4 d7+ Ke3 Qbe5 Kd2 Nh5 Kd1 d8R+ N2d4 Qe6 c2 Qee5 Bc3 Bg3 Be1 Nb3 c1N Rd6 Nd3 Nc1 Nc2 Rh2 Qd2 Kd5 Qg5 Qf4 Nde5 Rc4 Nf7 Qfe5 Rh1 Qe7 g1Q Rg2 Rh2 Qef6 Qe3 Qg5 Qa3 Rg8 Qa1 Bb8 Qf1 Rgg6 Qb1 Rb4 Qa6 Rb5 Qaa1 Be5 Qa3 Rg4 Rg2 Bg3 Qb4 Bd3 Qa4 Rc4 Qa5 Be4 N6b4+
2Qr4/Nq1N2rQ/b1R3B1/b2nn1B1/1B1P1P2/rnpqn1k1/nK4B1/4RR2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 b4 Kf6 f4 a5 d6 c5 d7 e5 d3 h5 Kd2 e3+ Kc2 a4 b6 h3 b5 e2 g5+ Kf5 b7 Kg4 g6 e4 b6 a3 g7 h2 Nh3 a2 Kb3 e3 Nf2+ Kg3 Na3 e1N Bd2 c4+ Kb2 e2 Qc1 h4 Nh3 Na6 b8Q Nb4 b7 Ng2 Qc3 e1N Ng5 h3 Nf7 Nf3 Nb5 Ra3 Na7 Nf6 g8B Ne3 Qc2 Ne5 Re1 a1N Bg2 Na2 Bh7 Nfd5 Bb4 Nb3 Rhf1 h1R Bg6 h2 Qa8 Rg1 b8R h1Q Rb6 Bg7 Rc6 Ba6 Qc8 Bf8 Qb1 Bc5 Qc2 Bb6 Qb1 Qh7 d4 Qe7 d8B Ba5 Qc2 Qb7 Bg5 Rd8 Qd3 Nf3 Ne5 Qh3 Nd7 Ne5 Bd6 Qf5 Qc2 Qd3 Qb1 Rh1 Bb4 Rh7 Qd1 Rf7 Qh5 Rg7 Qh7 c3+
2q4K/2Q5/2bnnRq1/2RBN1r1/1RP1PpN1/b3Brk1/BqQ2qq1/5R1b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 Kf5 h5 e4 a4 g4 f3 b4 f2 c4 d3 g6 h4 b6 h3 g5 d2 b7 a3 b5 h2 g7 a2 b6 Nf6 g8R Na6 b8R Ne8 b7 Rh3 g6 Nc5 g7 Rf3+ Kg4 Ke5 Kh5 Kf4 Kh6 d5 Kh7 f5 Rh8 d4 g8B d3 Nh3+ Kg3 Be6 f4 Bd5 Bd7 Qc2 d1Q Be3 d2 Bd3 f1Q Nf2 Bc6 Ng4 Qf2 Rf1 h1B Rg8 Ra6 Rg6 Ra5 Rf6 Nd6 Kh8 Qde2 Rc8 d1Q b8Q Qed2 Qc7 Ne6 Rb8 Qg2 Rb4 Qdf2 Nd2 Qc8 Rab1 a1Q Rb5 Kh3 R1b4 Kg3 Rc5 Qde1 Qa4 Qfg1 Bb1 Qb2 Ba2 Qef2 Qc2 Ra7 Qb8 Rg7 Qc7 Rg6 Nb3 Rg7 Nc1 Rg5 Nd3 Q1h2+ Nh6 Qh5 Ne5 Qg6 Nhg4 Bd7 Rb8 Bc6 Ra5 Ne8 Rb3 Bb4 Rc5 Ba3 Rb4 Nd6+
2b4R/bkrRK1Bb/7N/2Q3N1/rBP1pnQr/Rn1QP1rr/5q2/4q1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 cxd4 Bh3 Nc6 fxg5 Nf6 g6 Ng8 g5 Nb8 Bg4 hxg4 Kf2 d5 Kg3 Kd7 Kf4 Kc7 Ke5 f5 h4 a5 b4 f4 c4 a4 b6+ Kb7 e3 f3 h5 g3 b5 a3 g7 f2 g6 f1B h6 d3 h7 a2 Rh6 g2 Bb2 d4 Na3 d2 Nf3 g1R Ng5 d3 Nc2 Nd7+ Ke6 Rg3 Nd4 Ra4 Nf5 Ngf6 g8Q Nd5 g7 Nc5+ Kf7 e5 Rd6 e4 Nh6 Nb3 Rd7+ Qc7 Qg4 Bc5 Qd8 d1R g8Q d2 Bg7 Nf4 Kf6 Bd4+ Ke7 Bh3 Qgf8 Rh1 Qff5 d1Q Qc5 Kb8 b7 Qe1 Qg8 Qb6 Qd8 Ka7 b8B+ Ka8 Bc7 Kb7 Bd6+ Qc7 b6 Rh2 Qd1 Bf5 Qg4 Rh4 Qg8 Rgh3 Qd8 Rg8 h8R Bh7 Qg1 Ka6 b7 Qb6 Rc1 a1R b8Q Qf2 Rd1 Qa5 Rd3 Qae1 Qbc7 R1a3 Qf5 Ra2 Qfg4 Ba7 Bb4 Rd2 Rc3 Rd6 Qc5 Rc6 Rcd3 Rc7 Rc3 Nd2 Ra3 Nb3 Qf8 Kb7 Qf6 Rf8 Qfd6 Rg3 Qd3 Rf5 Ne6 Rfh5 Ng5 Rhh3 Qe5 R3h4 Qa5 Rhh3 Qc5 R5h4
B1RR2BQ/1q1r2n1/r1bn4/Nn2rk1P/Qn1q4/2P1p3/N1RBR2n/4K1b1 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 b4 Kf7 f4 Ke6 h4 g5 b6 d5 c6 a5 c3 g3 b7 g4 h5 g2 c7 d4 b5 d3 b6 d2+ Ke2 a4 Na3 g3 Rb1 e3 Nh3 g1Q Nc4 g2 Qe1 d1N Qh4 a3 Ng5+ Kf5 Nh3 e5 Nf2 e4 Ne5 a2 Nc4 a1N Qh2 Bc5 Ke1 e2 Bd2 Nb2 Na5 Ne7 Qh4 Nc4 Rh2 Ra6 Rb2 Nd6 Rc2 Bd7 c8B Nbc6 b8R Na7 b7 Qc7 Nd3 Nab5 Nc1 Rd8 Na2 Qd4 Ra8 g1N b8Q Qa7 Bb7 Bc6 Qc8+ Rd7 Qh8 Qb6 Rd8 Qc7 Ba8 Qb7 Qg3 Ba7 Qd3 Bc5 Qc4 Ba7 Qa4 Bc5 Rh3 Ba7 Re3 Nf3+ Kf2 e1R Bc4 Nh2 Bg8 Nb3 Rc8 Nd5 Rd8 Nc5 Rc8 Kg4 f5 Ne6 f6 Nb4 f7 Ng7 f8R Kg5 Rfd8 Kf5 Re8 Rg1 Ke2 Rg6 Red8 Re6 Ke1 Re5 Kd1 Qd3 Re2 Bg1 Ke1 e3 Nc4 Qe4 Na5 Qd4
2N1nQ1K/1q1q1qqB/2RN2rR/2b1p1k1/1Rn5/1QP4P/1br2N1B/1b3qN1 w - - 0 1 illegal: No possible last move, all moves rejected
q1b5/Q1r2Nk1/QBq2rN1/b1PbR1R1/R3n3/pBr4R/3b1n1P/1K2b2B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 a5 b4 d5 c4 g5 Kc2 f5 e4 Kf7 b6 g3 e6+ Kg7 b5 d3+ Kb2 d4 b7 a4 e7 a3+ Ka2 g2 e8Q f4 e5 g4 b6 g3 e6 d2 e7 f3 Qe2 d1B Nd2 f2 Kb1 d3 Qd7 Rh7 Ne4 d2 Nh3 g1B Nd6 g2 Nf7 Na6 b8R Bb3 e8B d1Q b7 Nc5 Nf4 Nh6 Ng6 Qd6 Be3 Ne4 Bb6 Ng4 Qd3 Ra7 Ra8 Qc6 b8R Bb4 c5 Rh3 Qa6 Ba5 Bc4 Rc7 Ra2 Rd3 Re2 f1R+ Re1 Bf2 Rg1 Rc3 Rb7 Bd1 Bb3 Bf3 Qe7 Bg3 Bd7 Ngf2 Raa7 Qd5 Bc6 Bf4 Rb8 Bd2 Ba8 Qc6 Bb7 Bcg4 Rba8 Qdd5 Rh8 Qd8 Rh3 Qa8 Rd1 Be1 Rd5 Bd7 Re5 Bc8 Rh1 g1B Rg5 Ng4 Re5 Bgf2 Rg1 Be3 Qd7 Ngf2 Rgg5 Qe6 Bc6 B3d2 Bcd5 Qec6 Qe7 Be2 Qd7 Bc4 Qe7 Nf6 Bh1 N6e4 Rb7 Rd7 Bc7 Bd5 Rb4 Nd3 Ra4 Rf6 Bb6 Ra7 Qc7 Ndf2 Qb8 Rb7 Qba7 Rc7
1Bq5/2rn1bQN/N1N2bPB/R1K5/1B1r4/qp2bq2/B1QRP1k1/qq4n1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 a4 Kd6 d4 f5 g4 h5 a5 c5 a6 b5 g6 c4 g5 h4 a7 c3 g7 c2 g6 h3 Nc3 f3 Ke3 f2 Ra2 f4+ Ke4 h2 Nh3 f3 Bg2 f1Q Nf2 Nf6+ Ke3 Rh7 g8Q Nh5 Nh3 f2 Ng5 Be6 Bh3 Re7 Nh7 Nf4 Qg7 Bf7+ Be6 Qc8 Ra1 Qg2 Na2 f1Q Bd2 c1B Qc2 Qgg1+ Ke4 Nh3 Bh6 Bb2 Rd1 Qg3 Rd2 Ba1 Rg1 Qb3 Rg5 Qa3 Re5 Bc3 Rh5 h1Q+ Kd3 Kc7 d6+ Kc6 d5+ Kc5 d7 Ng1 d8B Qa1 Bc7 Qg2 Re5 Qf3+ Re3 Rd7 d6 Be7 Bd5 Bf6 Bc4 Re7 d7 Re4 d8B Nd7 Bb8 Bcd4+ Nc3 Rf4 Ba5 Rg4 Ba2 Rh4 Bbc7 Rb8 a8N Rb7 Bb8 Rg4 Nb6 Rc7 Na4+ Kd6 Nc5 Rf4 Ne4+ Ke5 Nc5+ Kf5 Na6 Kg4 Rd1 Kh3 Rd2 b3 Nd5 b2+ Bc3 b1Q Ndb4 Qg3 Nc6 b4 Rf3 b3 Bb4 Be3 Rf2 Rg4 Rf5 Kg2 Ra5 Rg5 Ke4 Qf3+ Kd3 Rd5+ Kc4 Rd4+ Kb5 Ne5 Kc5 Nd7+
KNb1b2k/Qr3q2/1N1nr1PP/pq2qB2/3R1N2/B3b3/2NR3q/Q1n1R2q w - - 0 1 illegal: No proof kernel
1q3Q2/kqBQqNq1/1R1n1rpn/N3RRrr/3bP1PB/b7/6K1/1B3q1R w - - 0 1 illegal: No extended proof kernel
Nn5q/3RN2b/1q1rb1pk/4Qb2/P2BBN2/3RQKb1/qP1bN2r/R6n w - - 0 1 illegal: No proof kernel
2b1r1n1/1Q1q1Q1N/1B3P2/1R2N2r/3q1N2/bbrn1P1B/p1k1N1KQ/3R1r1r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 b4 Kf6 g4 Ke5 g5 Ke4 g6 e5 g7 h5 c5 a5 f6 d5 c6 h3 b6 d3 b7 h2 c7 d2+ Ke2 h4 b5 d4 b6 h3 Ra2 a4 Rb2 a3 Rb5 Na6 b8N a2 b7 Nb4 Nd7 Ra3 b8N Rh5 Nc6 Rc3 Qc2+ Nd3 Ba3 Be7 Nf8 Qd7 Bc5 d1R Bb6 Ba3 Nh7 Rc1 Nf3 Rd1 Rg1 h1B Nh4 h2 Bh3 Rf1 Ng6 Bg2 Nf4 h1R Be6 Bh3 Qd2 Bf5 Qb2 Bg6 Bh3 Bf7 Qc2 Bb3 Qb2 Bb7 c8Q Ba6 Qa8 Bc8 Qb7 Ne1 Qc2+ d3+ Kd1 Qd4 f3+ Ke3 Ne7 d2 Nc6 e4 Ne5 Rc5 Nc3 Rc4 Nce2 Rc3 Rc5 Qd7 Ng3 Kd4 Ke2 e3 Qb2 Ne7 g8Q Nd3 Qf7 Ng8 Qc2 Rc4 Qb1 Kc3 Rb5 Qd4 Qe1 Kc2 Qf2 Rc3 Qh2 Rc1 Re1 Qd7 Qg1 d1Q+ Kf1 e2+ Kg2 Rb1 Rf1 e1R Qh2 Re4 Nge2 Qd2 Ng4 Re8 Ne5 Qe3 Rg1 Qed4 Rd1 Nc5 Rd3 Rbf1 Rd1 Nd3
4BB2/1k5n/4RPr1/R1q1rB2/bqN1nP1r/1r1Q1B1p/1Rr5/1Qbb1NK1 w - - 0 1 illegal: No possible last move
1q1b4/1B1k2N1/1q1Pnr1R/pn3R2/1n1Q1qn1/1QK1B1Nn/1BbN1BP1/1r6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 f5 b4 h5 d4 a5 Kd2 c5 d6 f3 d5 h3 b6 f2 e5 c4 b5 c3+ Kc2 h4 e6 f4 b7 f3 b6 h2 e7 h3 Kd3 c2 Ra3 Nd7 b8Q Rh6 b7 Ngf6 Nd2 Qb6 Nb1 Ng4 Kc4 Rf6 Ne2 Nc5 Nd4 Kd7 e8N Be7 Qd3 Ne6 Be2 f1Q Bb2 c1N Qa7 f2 Bf3 Bd8 Ne2 Rb8 Ng7 Nb3 Ng3 Nbd4 Nd2 Qb1 Qb3 f1Q+ Kc3 Qf2 Rf1 h1N Ra4 h2 Rc4 Qb5 Rc6 Qb6 Be4 Qf5 Rf4 Qg5 Rf5 Nhf2 Bf3 h1N Be4 Ra8 b8B+ Bb7 Bf3 Nd3 Be4 Nb4 Bc7 Qb5 Bb6 Nhf2 Bc5 Qf4 Ra6 Nf3 Be3 Rb8 Qd4 Nh3 Bf2 Qb6 Be3 Kc8 d7+ Kc7 Bf2 Bc6 Be3 Bb5 Bf2 Bd3 Be3 Bc2 Bf2 Be7 d8B+ Kd7 Bc7 Bd8 Bd6 Nfg5 Bc5 Nc7 Be3 Qb5 Re6 Qb6 d6 Rb7 Bf2 Rb8 Bb7 Nb5+ Kc4 Rf7 Rh6 Ne6 Qe4 Rf8 Bce3 Rf6 Qd4 Rc8+ Rc5 Bd1 Ngf1 Nd3 Qc3 Qa7 Ba3 Qb8 Nf3 Na7 N3d2 Qb6 Ng3 Nb5 Bb2 Nb4 Qa3 Bf3 Kb3 Be4 Rf5 Rc1 Qa4 Rb1 Qa2 Na7 Kc3 Bc2 Qb3 Nb5+
1b2N3/n3r2r/BQ1pRqk1/8/5R2/QK1nRq1B/2rP1Pr1/NQQr2qb w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 c4 Kf7 g4 a5 f6 h5 b7 e5 c5 b3 g5 h3 b6 e4 c6 h4 c7 b2 Bb5 e3 Na3 b1Q Nc4 h2 Bc6 a4 Bb5 a3 Ba6 h3 Qc1 a2 Kd1 Nc6 b8Q Rh7 b7 Bd6 Ne2 Ne5 Nd4 Ne7 Re1 h1Q Nc2 Kg6 f7 h2 f8R N7c6 Rf4 Qf6 Qa7 Rg7 b8Q Nd3 Qab6 Bb7 c8B Qf3+ Re2 Bc7 Nd6 Na7 Ne8 d6 Bh3 Be4 Q8b7 Rc8 Qa8 Bb8 Qab7 Kh5 g6 Rh7 g7 Kg6 g8Q+ Rg7 Nb4 Rc2 Qb3 Bd5 Qa3 h1R+ Bf1 Rhh7 Bh3 Qbb2 Rb1 Qa1 Rb2 Qb1 Rb3 a1R Rc3 Kh5 Rb3 Rg2 Rc3 Kg6 Rb3 Rcc7 Nc2 Rce7 Rc3 Ra2 Na1 Rc2 Rb3 Qg7 Rc3 Qb2 Rb3 Qbf6 Rc3 Qg8 Qbb1 Qgg7 Q7b6 Rg5 Bg4 Ne1 Q6b3 Qg2 Bgc8 Kh5 Nc7 Ra2 Rc5 Rb2 Re4 Nd3 Qb6 Qh3 Re5 Bh1 Rc4 Qhf3 Bh3 Kh6 Rf4 Rg1+ Bf1 Qgg2 Ree4 Kg6 Ne8 Qh2 Re6 Rg4 Bh3 Rg2 Qac3 Ra2 Q3b2 Qg1+ Kc2 Reg7 Re1 e2 Kb3 Re7 Qa3 Rc2 Rf1 Qh2 Rg1 e1R Rf1 Rd1 Rfe1 Qg1 R1e2 Rc5 R2e3 Rc2
3R3R/3KnrbB/1qrp1rb1/3b1B1n/bqQP3Q/5P2/2NQ1Qb1/1kB4N w - - 0 1 legal: proof: e4 b5 a4 g5 h4 f5 exf5 gxh4 axb5 c5 b4 cxb4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 d4 h5 c4 a5 g4 h3 f6 h4 f7 h2 g5 b3 g6 h3 g7 b2 b6 e5+ Kb5 a4 b7 d6 c5 a3 c6 a2 c7 Nd7 Kc6 Ne7+ Kb5 Rh7 b8Q Nf6 g8B Nh5 Bh6 Bg7 f8Q Ra6 Be6 Rc6 Be3 Bd7 Na3 b1B c8Q Be8 Ne2 Qb6+ Ka4 Rh6 Bc1 Rf6 Nc2 Bd7 Qe1 Kd3 Bf5+ e4 Bg2 Be8 Ng3 Bg6 Qd1+ Kc3 Qg4 e3 Qh4 e2 Bge4 e1Q Qa6 Rf7 Qe2 Rf6 Qc7 Be8 Bh7 Bd7 Bef5 Qd2 Re1 h1B Rd1 Bf3 Nh1 Bd5 f3 h2 Qef2 Bh8 Qh6 Bg7 Rg1 Qe1 Rg3 Be8 Rh3 Bg6 Ng3 h1B Rh2 Bg2 Nh1 Qa7+ Kb5 Kb3 Nb4 Bc2 Rh3 Bd1 Nc2 Kc3 Rb1 a1R Qc8 Ra2 Ra1 Kb3 Qhd2 Qc7 Qg8 Ra7 Rb1+ Ka2 Rb4 Bb3 Qc4 Kb1 Ra4 Qd8 Ra3 Rd7 Ra8 Qc7 Rd8 Qa7 Qc5 Bd5 Qc4 Qb6+ Ka4 Nc8 Qdg5 Rff7 Qhg3 Rf8 Bg8 Nf4 Rh8 Qc3 Bh7 Rf6 Q3h4 Nh5 Qge3 Rcc7 Qed2 Qa7+ Kb5 Rdf7 Na1+ Bc2 Bh3 Ne7 Be6 Bb3 Nc2 Qb2 Bf5 Qaa3 Kb6 Rc6+ Kb7 Qa5 Kb8 Qbc3 Kb7 Ba4 Kb8 Rb6+ Kc7 Rc6+ Kd7 Qcb4 Rb8 Qbb6 Rbd8 Qab4
2R1q1rq/3k3b/2bp1rBR/3Q1r1q/1NPP1R1q/3nKQnq/2N2B2/R4B2 w - - 0 1 legal: proof: h4 c5 f4 g5 b4 gxh4 f5 b5 f6 exf6 a3 f5 Rh2 f4 Rh3 Bg7 Rh1 Bc3 bxc5 b4 Ra2 b3 Ra1 Bb4 axb4 Ke7 Ra3 Kf8 Ra1 Ke8 Kf2 a5 e4 f5 g4 h5 c4 b2 g5 f3 c6 a4 e5 a3 e6 d6 e7 h3 b5 h2 b6 f4 b7 a2 d3 h4 c7 h3 g6 Nc6 b8R Nb4 g7 Kd7 e8R Nh6 g8Q Ra5 Re5 Nf5 Re2 Ng3 Bd2 Rf5 Re4 Qe8 Bc1 Bb7 Qg4 Rg8 Rc8 Bc6 Nc3 b1B Nd5 Bc2 Ne2 Bb1 Rg1 h1Q Nd4 h2 Be3 Bc2 Qh5 Bb1 Nc2 Rf6 Ke1 f2+ Kd2 f3 d4 Nd3 Ndb4 Rf5 Bg2 f1R Rf4 f2 Qdf3 Rf6 Bh3+ Rf5 Qd5 Qhe4 Rg2 h1Q Rh2 Q4e7 Qhf3 Qh4 Bg2 Qh8 Rh6 Qhh5 Bh3 Rg1 Rh4 f1Q Bf2 Rf8 Rf4 Rf6 Bg4 Qh4 Bh5 Qfh3 Bf7 Nh1 Bh5 Rg8 Bg6 Ng3 Ne1 Ne5 Ke3 Bd3 Nec2 Qh5 Rb1 a1Q Re1 Qa3 Ra1 Qb3 Rb8 Q3h4 c8B+ Kc7 Bb7 Kd7 Rc8 Be4+ Kd2 Nd3 Ke3 Qc3 Qe2 Qe1 Bf7 Qf1 Qa5 Rfg5 Qe5 Bh7 Bg6 Bb5 Bg2 Qfh1 Qf3 Rgf5 Bf1 Q1h3 Qee4 Bc6 Qe5 Qd8 Qed5 Qe8+
1kb3bb/2r3R1/1BP1R3/3rr1NB/Q1Q3pb/Kn1qPQ2/1q1Q4/nb1N2N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 c4 Kd7 Kc2 Kc7 Kb3 a5 h4 g5 h6 f5 e3 g4 c5 f3 h5 a4+ Kb4 f2 h7 a3 h6 d3 b3 f4 Nc3 d2 Rb1 f3 Qc2 d1Q Bd2 d4 Bd3 f1B Bg6 d3 Bh5 Ne7 c6 Qc1 Nd1 f2 Qc4 Nd7 b6+ Kb8 b7 a2 Rh3 Rg8 h8Q a1B h7 Rg5 Qhd4 Qb2 h8N Ra7 Nf7 Re5 Ng5 Nc5 Qe4 Qdd4 Qf3 Nf5 Bc3 Qd6 Bd4 d2 Rh1 Bd3 Rh4 f1B Rh2 Kc7 b8Q+ Kd8 Qbb5 Kc7 Qa6 Be7 Qa4 Kb8 Rh4 Rc7 Rh1 Qc2 Ka3 Be4 b4 Nb3 Bb6 Qdd3 Rh3 Nfd4 Rh2 Bf6 b5 Qb2+ Kb4 Qdc2 Qe6 Qa2 Re2 Nc1 Ba5 Rf5 b6 Ka8 Nf2 d1R Rd2 Rg7 Nh7 Bh4 Ng5 Bc4 b7+ Ka7 Qd6 Bg8 Qd7 Qd5 Ka3 Re7 Rb5 Ncb3 Rc5 Qdc4 Re5 Qf1 Qd6 Rc7 Re6 Bc3 Rd3 Na1 Qdb4 Rd2 Nd1 Rc5 Qb2 Ndb3 Rd7 Bh8 Rg7 Re5 Qc4 Rd3 Qc1 Qc3 Qd2 Rdd5 Qa4 Bb1 b8Q+ Ka6 Qbb5+ Ka7 Qac4 Qfd3 Bb6+ Kb8 Qba4 Qb2+
3nN1B1/6q1/1Bp2q1B/5N2/PQQ3N1/qb2rRKN/k1rnbPR1/2bqq3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 a4 Kd6 d4 e5 f6 b5 g5 h5 g6 b3 g7 e4 f7 b2 Bh3 e3 Bf1 b4 Ra2 h3 Rh2 e2 Qd3 b3 Qe4 h4 Nc3 b1Q Bg2 b2 Qg6+ Qf6 Qf5 Qd3 Qe4 b1B Ra3 Nc6 Nd1 Ba6 Bh6 Re8 Ne3 Bc2 Ng4 Nd8 Rb3 Qg3 Rf3 Bb3 Bh1 c6 Rg2 h2 Nh3 Re6 Qd3 Re3 Qc4 Rc3 Kd2 Rc2+ Ke3 Be7 f8Q e1Q+ Qe2 Qb4 Qc4 Qa3 Ke4 Qf7 Ke3 Nf6 g8N Ne4 N8f6 Nd2 Ke2 Bb5 Ke3 Qf4+ Ke2 Qg7 Ne8+ Kd7 d6 Bg5 d5 Qff6 Nf4 h3 Ke3 Kc8 d7+ Kb7 d6 Kb6 Qe7 Ka5 Ke2 Nb7 d8N Ba6 Nde6 Nd8 d7 Rg8 Nd6 Re8 Nd4 Bb5 N4f5 Ba6 Qd3 Kb4 Ke3 Bb5 Qf1 Kc3 Qc4+ Kb2 Qee4 Re6 Ne8 Ka2 Qb4 Be2 Qc4 Nb7 d8B Re5 Bb6 Nd8 Rg1 Re7 Bg2 h1Q Qb4 Rc7 Qec4 h2 Bh3 Rc8 Rgg3 Qha1 Bf1 h1Q Rg2 Bd1 Bd3 Be2 Be4 Qhf1 Bd5 Qfe1 Bf7 Qad1 Bg8 Nf1+ Ke4 Rb8 Nh3 Bc1 Bd4 Nd2+ Kf4 Rb5 Bb6 Re5 Kg3 Re3
n1NRBb2/bNNr4/1pqB2PN/1n6/4B2k/5rbb/2Q2P1K/b1R1qQ1n w - - 0 1 illegal: No possible last move, all moves rejected
3k1bBQ/2bq2PP/1p1q1N1b/2b1R3/1q1nR3/3nK2N/1rQ1QN2/BbQ2r2 w - - 0 1 illegal: No proof kernel
Nr1QRq2/qn2Np1R/q1N5/n2qr2b/4bq2/B1k3P1/KbPN2B1/3B2Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 Ke6 b4 Ke5 g6 a5 g3 d5 g7 h5 b6 a4 b5 a3 b7 a2 b6 f3 Rh4 d3 Kc3 d4+ Kb3 f2 Qd2 Ba3 Rh3 h4 Qc3 d2 Qc6 d1Q Be2 f1Q Rh2 h3 Nd2 d3 Nc4+ Kd4 e5 d2 e6 Nh6 g8N Qf8 e7 Bb2 e8B Bg4 Ne7 Ra5 Qg2 Nf5 Bc6 Bh5 Bcf3 Qde1 Bd1 Nc6 b8Q Nd6 b7 Qef2 Nb6 Re5 Na8 Qa6 Qd8 Rg8 Rh1 h2 b8N Rh8 Rb1 a1Q Qf1 Q1a5 Bg2 Qf4 Ra1 Qc7 Qe1 Na5+ Ka2 Kc3 Nf3 Qcb6 Qg1 Qba7 Nbc6 Ndb7 Rb1 Ba3 Rb4 Bb2 Re4 Rg8 Be2 d1B Nd2 Rh8 Bg4 Bf3 Re1 Be4 Bd1 Ba1 Ba3 Bb2 Rf1 Qh4 Rf6 Qf4 Rh6 Rg8 Rh7 Rh8 Qf2 Rg8 Re1 h1Q Qg1 Rh8 Bh3 Qhf3 Bg2 Qfd3 Re2 Qd5+ Nb3 Q8h6 Qc8 Rg5 Ng6 Bd3 Re1 Rd8 Re8 Be4 Nge7 Re5 Qc7 Rb8 Qd8 Qdd4 Nd2 Qf8 Qf2 Qd7 Qg1 Qd5+
b3N2b/k1rNPN2/2Q1pr1R/3PQ2Q/K3n2b/2n2rqb/2R1N1bq/B2B4 w - - 0 1 illegal: No proof kernel
B1QbBr2/1NNKPp1n/1bn5/NbP1B3/2r5/1B2k3/QbRq1b2/rq4R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kf2 Ke7 Kg3 Ke6 Kf4 d5 c4 a5 b4 a3 e4 d4 h4 g6 b5 a4 b6 d3 b7 d2 c6 a2 c5 a3 h5 g3 h6 g2 c7 Bd6 h7 Qd7 Qa4 d1R Nd2 Bf8 Rh2 Nf6 Bb2 Bg7 Bc4+ Qd5 Nb3 Rc1 Nf3 g1Q Nh4 Nc6 b8N Rf8 h8Q Nh7 Na5 Bf6 Nf5 Ba6 Nd6 Bd8 Ndb7 Bb5 Bb3 Rc4 Rc2 Qb1 c8B+ Qd7 Na6 g5+ Kg4 Bb6 Nc7+ Ke7+ e6 Qd2 Kf5 g4 e5 g3 Bd4 g2 Ke4 g1B Kd5 Bf2 Qg8 Qb2 Rg1 a1B Bd7 a2 Qa3 Nb8 Bc6 Qb1 Qg4 Bb2 Qh3 a1B Qa2 Rc8 Qg4 Rh8 Qg8 Ra7 Qc8 Ra6 Nd8 Re8 Ba8 Nc6 Ndb7 Kf8 Re1 Kg7 Kd6 Kh6 e7 Kg5 e6 Kf4 Kd7 Rf8 Rg1 Ke4 e8B Kd3 Be5 Ke3+ Bd6 Ra7 Rcc1 Bf6 Rc2 Bd8 e7 Bb2 Qa1 Re4 Nc4+ Kd3 Be5 Ra4 Nca5 Rec4 Bh2 Ke3+ Bd6 Bd4 Be5 Ra2 Qb2 Ra1 Qa2 Bb2+
b2NR2q/1b2pB2/5b1N/1n2brQR/1n1Pb1B1/2N1Pr1n/B5qQ/k2K2B1 w - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 Qd6 c3 Qxh2 c4 dxc4 g4 Kd7 b4 Ke6 b6 Kd5 b5 Kd4 g6 c5 g5 h5 b7 f5 d3 a5 g7 h4 b6 c3 g6 c4 Bg2 c2 Ra2 a4 Na3 Kc3 e3 f4 Rb2 f3 Bh3 f2+ Ke2 f1B+ Ke1 Na6 b8N Nf6 g8B Rh5 b7 Ne8 g7 Rf5 Qg4 Qg2 Ra2 Nb4 Qh5 Nd6 Qf3 Nb5 Bg4 h3 Qg3 h2 Qh4 Ra5 Rb2 Rf3 Nh3 Bf5 Bd5 Be4 g8B Bg7 Bdf7 Be5 Nc6 Bf6 b8Q Be5 Rg1 h1B Qg5 Bf6 Ra2 Kb3 Bd2 c1N Bc3 Ne2 Be5 Nf4 Nb1 a3 Nf2 Nh3 Nd8 Be2 Rd2 a2 Nc3 a1B Bh2 Bb7 Rd1 Kb2 Rf1 Be4 Bg1 Ba8 Rc1 Bd1 Qc7 Bc2 Qh2 Bb1 Kd1 Be5 Nce4 c3 Ba2 Bf6 Bgf7 c2+ Kd2 Na7 Nc3 Raf5 Rcd1 c1Q+ Ke2 Ka3 Rd2 Qb2 Kd1 Na6 Rc2 Qb8 Rb2 Nb5 Rb4 Qc8 Rd4 Bb2 Rd5 Nb4 Re5 Bc1 Rd5 Kb2 d4 Be4 Rc5 Qb8 Rc8 Ka1 Re1 Ba3 Re2 Na6 Rb2 Bd6 Rb4 Na7 Rb5 Nb4 Qg8 Beb7 Nc6 Qg3 Rf8 Rd5 Bge6 Rf4 Ng4 Be4 Nh6 Rf3 Bg4 Qg2 Rc5 Qe8 Nd8 Nb5 Qg6 Rg5 Rh8 Qg8 Re5 Qh7 Re8 Qh8 Rf5 Bde5 Qg7 Rg6 Rh5 Rg5 Qg6 Rgf5 Qg8 Bd3 Qg5 Bde4
Q1r1K3/bqr1p2R/rb4BB/3QnP1q/1b1R3b/N1k1PQ2/bN6/N1N4n w - - 0 1 illegal: No possible last move, all moves rejected
R3RQ1n/1R1P3N/b1P1Q2b/1pB2N1r/2q2n2/2n2B2/4qr1R/K1kr1rQr w - - 0 1 illegal: No proof kernel
4R1r1/3p3B/K2Nnn2/rR1nQn1b/1PB2bb1/1P2Qq1k/N1B2q1N/1n2B3 w - - 0 1 illegal: No possible last move, all moves rejected
2k1q1r1/Q1Pn1Nnr/r1K1bR1r/2B1R1q1/5Q2/N1bB4/p4B1P/1Rnr1B2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 d5 e4 Kd7 c4 a5 b4 g5 h6 d3 c5 d4 e5 g4+ Kg2 d2 h7 d3 b6 a4 b7 a3 b5 a2 b6 g3 Kf3 g2 Na3 Nf6 Rb1 Nh5 Nh3 g1R Ng5 Ng7 Nf7 Qg5 Rb5 Ra6 Qa4 d1N Be3 d2 Bf2 Rg8 h8R Nb2 Rh6 d1R Rf6 Nd3 Qc4 Nc1 c6+ Ke7 e6 Nd7 b8B Rg2 Nd6 Kd8 b7 Rg4 Rc5 Rh4 Re5 Rh7 Bba7 Kc7 Nf7 Bb4 e7 Bc3 e8B Rh6 Bfc5 Rh7 Kf2 f3 Qf4 Rd6 Ke3 f2 Bd3 f1Q Rg1 Qe1+ Kf3 Nf8 Bf2 Bd7 Bac5 Bc8 Bd7 Kb8 Be6 Nd7 Bec4 Kc7 Bf1 Kb8 Bcd3 Kc7 Qe3 f4 Ke4 f3 Rh1 Re6 Kd5 Qe2 Qf4 Kb8 Rff5 Reh6 Rf6 Kc7 Nh8 Kd8 b8Q Qe4+ Kd6 Qeg6 Qa7 Qe8 Bg3 f2 Rg1 Bb7 Nf7+ Kc8 Bh4 Nb6 c7 Bd5 Rh1 Be6 Bg3 Ra5 Bh4 Nd7 Kc6 Ra4 Bg2 f1R Bhf2 Re1 Bgf1 Ra6+ Qb6 Qg1 Bg2 Nb3 Bh3 Qg5 Rg1 Re3 Rb1 Nc1 Bg2 Re1 Bgf1 Ra7 Qa5 Rd1 Qb6 Ra4 Qa7 Ra6+
4N1Nq/2P4N/prN3br/2BQn3/nR3P1k/1Q1qb3/b1b2R2/1Bb1n1RK w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 b4 Kf6 g4 e5 b6 d5 c5 h5 b7 h3 c6 a6 b5 h4 c7 d3 b6 d2+ Ke2 Kg5 Kf3 d4 f6 h2 Kg2 e4 f3 h3+ Kf2 e3+ Kg3 e2 f7 d3 Qc2 Rh6 Ba3 d1Q Qc6 d2 Ra2 Bc5 f8N Nd7 b8R Be3 b7 Ne5 Qd5 Bf5 Bc5 Bg6 Na3 Ne7 Nb5 Nc8 Nd6 Nb6 Ne8 Na4 Rb2 Qb1 Rc2 d1B Rb2 e1B+ Rf2 Qa2 Bd3 Qc4 Ne2 Bc2 Nd4 B1d2 Rg1 h1N+ Kh2 Kh4 g5 Bc1 f4 Qc8 Bf5 Qd3 Nc6 Ra7 Nh7 Ra8 Nd6 Qh8 Ne8 Ra7 Rd8 Ra8 b8Q Ra7 Qb1 Rb7 Qbb3 Rb4 Rb8 Rb6 Rd2 Nf2 Rb7 Nd1 Rf2 Ndb2 Kh1 h2 Rb8 Qc4 Be4 Nbd3 Bf5 Ne1 Rb7 Bf7 g6 Qd3 g7 Bg6 g8N Bb1 Be6 Ba2 Bf5 Nc2 Kg2 h1B+ Kh2 Bg2 Rb8 Bh3 Kh1 Ne1 Be4 Bhf5 Rb7 Qf1 Bb1 Bc2 Rb8 Qd3 Rb7 Rb5 Rb6 Ra5 Rb4 Rb5 Qa3 Rb8 Qab3 Rb6
2R1B2b/2P1Qp2/1r2R1r1/3RN3/rB1N2B1/2q2Rrn/nK1Pbq1k/r1n1Q3 w - - 0 1 illegal: No proof kernel
1bQKB3/2PbPN1N/bb1R4/2r1r3/qNb2Q1p/1kqn1N2/3B1R2/Q2n3r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 h5 e4 a5 g4 f5 b3 d5 c5 f3 b6 h4 g6 f4 b7 a4 g7 f2 c6 d3 g5 f3 g6 d4 Nc3 d2 Bb5 f1B Rh2 d3 Rf2 Na6 b8Q Bd7 Qc8 Ne7 Kf6 a3 g8N a2 g7 Rh5 e5 Qa5 e6 Nf5 Nh6 Nc5 g8N Ne3 Nf7 Re5 Ba4 Bh6 Ke7 Bf4 Nf6 Bg3 Qe1 d1R Nh7 d2 Rb1 Nd3 Nd5+ Kc5 b4+ Kc4 b5 a1B b6 Qc3 b7 Ra5 b8Q Rc5 Nb4 Be2 Rf1 f2 Nf3 Bb2 Bb5+ Kb3 Kd8 Bh2 e7 Bg3 Rg1 f1B Ra1 Bf4 Ra2 Ba1 Rg6 Bh2 Bb2 Rc1 Rf6 d1Q Rd6 Qdc2 Qbc7 Nd1 Q7b8 Rb1 Bc1 Bb2 Bd2 Ba3 Na6 Bb4 Qbc7 Ba5 Nb4 Ra1 Nf7g5 Bb6 Nf7 Bfh3 Qg1 Bhe6 Qd4 Bc4 Qf4 Ba7 Qa5 Bb8 c7 Bg1 Qa7 Rc1 Raa6 Bd4 Rab6 Rb1 Qa1 Qa2 Rf6 Qa4 Rbd6 Rc6 Nf7g5 N3f2 Qh2 Nb2 Nf8 Be8 Nc2 Bd5 Rg6 Bb6 Nf7 Rc5 Rg2 Rh1 Nh7 Nbd1 Qf4 Bf1 Bd7 Ba6 Nb4 Nd3 Rf2 Bdc4 Bc6 Bd7 Bb5 Bde6 Be8 Bd7
6r1/rRpBbP2/1Q1rn1bk/Nq1R2rB/nQ2P1BK/1Q6/r2B1q2/5n1N w - - 0 1 illegal: No proof kernel
n1R4Q/1P2B3/Qb1K3R/6nR/1Nbrq2r/4P1pk/BNr1r1N1/b2rR2q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kf6 h4 Kf5 b4 a5 h5 g5 b6 c5 b5 f3 Kg3 a4 h6 a3 h7 a2 b7 c4 d6 c3 d7 c2 b6 f2 e3 Nf6 d5 Qe7 d8Q Na6 b8N Be6 b7 Nc7 d6 Ne4+ Kh2 g3+ Kg2 g4 d7 Ng5 Rh6 Ra4 Bb2 c1R Qd2 Rc2 Nc6 Rd4 Qe2 Bd5+ Nf3 Qe4 Nd2 Na8 Qa6 Bc5 Re1 a1B Ba3 Bb6 Bc4 f1R Ba2 f6 Be7 Rf2+ Kg1 g2 Kh2 Re2 Kg3 Rf8 Nb4 Rh8 Nc4 g1R+ Kh4 Rf1 Nb2 g3+ Kh5 Rg1 Qf8 Rf1 d8R Rg1 Rc8 Rf1 Rg6 Rg1 Kh6 Kg4 Kg7 f5 Kf6 f4 Nh4 f3 Ng2 f2 Rh6 Rh1 Qg7 Rd8 h8R Rh4 Rh5 Kh3 R8h6 Rd7 Qh8 f1Q+ Kg7 Qh1 Kf8 Rdc7 Ke8 R7c4 Kd7 Rd1 Kd6 Rcd4 Bd8 Rb1 Bf6 Rbd1 Be7 Bc4+
rq2Rr2/Qp5K/1q2Q1B1/7N/Pk1r1nNb/rP1B1N2/4b1Br/1R1nNq2 w - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 e5 hxg5 exf4 b3 a4 Bb2 a3 Qc1 axb2 Qc2 Bd6 Qd1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 h5 a4 c6 d4+ Kb4 g6 c5 g7 f6 g5 f3 g6 c4 d6 f2 d5 c3 d7 c2 Kf5 c1R e4 h4 d6 h3 e5 h2 e6 Rc7 e7 Rc4 e8B Re4 Bd3 f1Q+ Nf3 Rd4 Qe2 Na6 Nd2 b1R Qe6 Qb6 d8Q Nc5 d7 Ne4 Qc7 Nc3 d8N Qg2 Nf7 Be7 N7e5 Qg3 Ng4 Nd1 Re1 h1R Qb8 R1h2 Qa7 Qb8 Bf7 Rb2 Rb1 Ra2 Re5 Bd7 Ne1 Bb5 Ndf3 Ba6 Qd7 Bd8 Re8 Ra3 Bd5 Bc4 Qe6 Be7 B5e4 Bb5 Bf1 Be2 Bd3 Bd6 Bg2 Bg3 Ba6 Bh4 Bd3 Rd5+ Ke4 Ne7 g8B Rd8 g7 Nd5 Kf5 Nf4 Bf7 Rf8 g8N Rd4 Bh5 Nh3 Kg6 f5 Kh7 f4 Nd2 f3 N8f6 f2 Ndf3 f1Q Bhg6 Nf4 Nh5 Qg1 Rd8 Qf2 Re8 Qf1
1B6/Pr6/1kr3Qp/1q4QK/qb2b2Q/1R1n1Nn1/1Nr1B2P/Nn1nnQ1R w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 c3 bxc3 fxg5 Ba3 Qd6 Bc5 Qd1 Bf8 Kf2 b5 Kg3 f5 Kh4 c5 e4 d5 a4 Kd7 g4 Kc6 e6 f4 a5 c2 a6 f3 e5 h6 e7 b4 e8N b3 e6 f2 a7 b2 e7 c4 g6 c3 g5 d4 g7 d3 g6 d2 Bb5+ Kb6 Ne2 f1Q Nd4 Nd7 Ra4 Rb8 Nd6 Rb7 Nb3 Nc5 Be2 Bf5 Na1 Be4 Kh5 Qe8 Ra3 Qa4 e8Q Nd3 Qe7 Ne1 Qh4 Ne7 g8Q Nf5 g7 Be7 Qd5 Rc8 g8Q Rc6 Qdf7 Bf8 Qgg5 Be7 Qfg6 Bf8 Ba6 Qfb5 Rb3 Be7 Qe2 d1N Nd2 b1N Qf1 Bf8 Ba3 c1N Nf3 c2 Bb2 Be7 Be5 Ncd3 Bf4 c1R Nc4+ Kc5 Bb8 Rc2 Nb2 Kb6 Qf7 Bb4 Qe6 Qc5 Bc4 Qcb5 Qeg6 Nc5 Be2 Ncd3 Qh7 Ka6 Qhg7 Kb6 Q7g6 Ng3+
2bbB2n/p3NqKP/k1b2RnB/1r2P1b1/1bN1Bqq1/5r2/1Q3RN1/6BQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 f5 Kg3 d5 Kf4 Kd7 b4 Kc7 h4 Kb6 c4 g3 e4 g2 h5 d3 e6 g5+ Ke5 f4 h6 d4 h7 f3 e7 d2 e8B d3 Ra5 f2 Ne2 g1B Bg2 f1Q Na3 g4 Rh2 g3 Nf4 Ne7 Kf6 Qd7 c5+ Kb7 b6 Ng6 e5+ Nc6 b5 Be3 Nc4 Rb8 Be4 g2 Ra6 g1B Rf2 Bd6 Qh5 d1Q Qh1 d2 Ng2 Qf5+ Kg7 Qdg4 Ra4 d1B Ra6 Qe6 Bd2 Qd5 Bc1 Nd8 c6+ Ka8 c7 Kb7 Bd2 Bg5 Be3 Bb4 Bd2 Be6 c8N Rf8 Ne7 Rf3 Be3 Nf7 Bc1 Ba4 Be3 Rc8 Bd2 Kb8 b7 Rc5 Bc1 Bf5 Rf6 Nfh8 Bd2 Kc7 b8B+ Kb7 b6 Rb5 Bd6 Ka6 b7 Bc8 b8Q Qde6 Bc7 Qf4 Bb6 Qeg4 Re2 Bgc5 Rf2 Bd6 Bde3 Bc7 Bc1 Bd8 Bce3 Ra5 Bbc5+ Bc6 Bd2 Ba3 Qb2 Bb4 Bc1 Qff5 Rd2 Rb3 Rf7 Bh4 Bf2 Rb5 Bg1 Qe6 Rf6 Qf7+ Kh6 Qff5 Rf2 Rf3 Bf4 Qd5 Bg5 Qff4 Kg7 Qde6 Bh6 Bg5 Bf5 Qd5 Be4 Qf7+
2q1rBQR/prb1P3/bPK1b1R1/1Nq1Rn1B/N2Q2n1/1B5k/3bb2r/1B6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 h4 Ke6 b4 Kf5 e4+ Kg6 c4 Kh5 b6 d5 b5 g5 c5 f5 e6 f4 c6 f3 e5 d3 Ke3 d2 Kd4 g3 e7 Kg4 Kc5 d4 e6 d3 b7 g2 h5 Bh6 e8B Nf6 c7 Nc6 b8Q Nd4 b6 Nf5 e7 Be6 Na3 Qc8 Ne2 g1B+ Kc6 f2 Nb5 Bh2 Ra5 Bf4 Qa4 d1B Nec3 d2 Bc4 f1B Bb3 Bde2 Rg1+ Kh3 Qd4 d1R Na4 g4 Bf7 Bhg5 h6 g3 h7 g2 Bh5 Ng4 Bb2 Re8 h8R Rd2 Bc3 Ra2 Bb2 Bd2 Ba1 Bgf4 Bb2 Qd8 c8B Bc7 Bb7 Qc8 Bc1 Be1 Bh6 Bd2 Bf8 Rc2+ Nbc3 Ra2 Re5 Ba6 Nb5 Be2 Kc5 Rb2 Be4 Ra2 Bb1 Rb2 Re1 g1Q Kc6 Qe3 Rg1 Qf2 Qb7 Rb8 Qa8 Rb7 Rg2 Nf6 Rg6 Ng4 Be4 Rb1 Qb8 Rh1 Bb1 Rh2 Qb2 Qd8 Bg7 Rg8 Bh6 Qfd4 Qc8 Qb4 Qd4 Qf8 Qe8 Qa3 Qf7 Qc8 Bg7 Re8 Qg8 Qb4 Bf8 Qc5+
3q2rb/rBN2Q2/n1q1b3/kr5Q/2Q1n1KN/2R4N/PP1p2b1/n1nNB1R1 w - - 0 1 illegal: No possible last move
1nN2B1q/1R1nbQ1b/3R1rq1/2N4n/QQ5R/1B1b3p/QPn2r1P/1qk3K1 w - - 0 1 legal: proof: e4 b5 f4 g5 a4 gxf4 axb5 c6 bxc6 d5 Qh5 dxe4 Qf3 Bh6 Qd1 Bf8 Kf2 a5 d4 h5 g4 e5 c4 Ke7 g5 Ke6 c7 Kf5 c5 f3 g6 a4 c6 e3+ Kg3 Ke4 d5 f5 g7 h4+ Kh3 f2 Kg2 a3 d6 e2 d7 e1N+ Kh3 f4 Nf3 a2 Nbd2+ Ke3 Qa4 e4 Rg1 Nf6 g8Q Ra6 Ng5 f3 Bc4 f1N Rg4 f2 Qf7 Nc2 Kg2 Ng3 Bb3 f1B+ Kg1 h3 Ne6 Be7 Nc5 Rf8 Rh4 Ngh5 Nc4+ Ke2 Bd2 e3 Bb4 Rb6 Rc1 a1Q Nd6 Qb1 Qa2 Ba6 c8Q Bd3 c7 Bh7 Qb7 Qc8 d8Q Nfd7 Qde8 Qd8 Ba3 Kd2 c8R e2 Rc6 e1Q Nc8 Qe6 Rd6+ Bfd3 Qe4 Qg6+ Qg4 Ndf6 Qa4 Nfd7 Rf1 Ne1 Rf4 Kc1 Rb4 Nc2 Rb5 Rc6 Rb7 Ra6 Rd5 Rf6 Rd6 Rf2 Qb4 Qa5 Qa4 Qc3 Qb4 Qh8 Qa4 Qf5 Qgb4 Qg6+ Kh1 Re8 Rdd4 Be2 Qc3 Bd6 Ne4 Qh6 Kg1 Re6 Bc5 Ref6 Qcb4 Bf8 Be7 Bb5 Rd6 Bd3 Nc5 Re6 Bf6 Be7 Bg7 Ref6 Bf8 Qg6+
3k3n/r1N3bb/1B2qbq1/QK3BR1/4BQ2/nQ2PBr1/1RPp4/qn2N2n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 Kd3 d5 b4 h5 g4 a5 e3 a4 g6 a3 g7 h4 g5 f3 g6 a2 b6 h3 b5 f2 b7 f4 b6 h2 Qd2 f3 Qc3 Nh6 g8B Qd7 g7 Kd8 Qb3 Nf7 Qb5 Ra7 Nc3 Rh3 Bh7 Rg3 g8B Bg7 Ba3 Nc6 b8Q Na5 b7 Nc4 Qa8 Qe6 b8Q Nh8 Bg2 f1N Bf5 f2 Bgh7 Nfd2 Qb3 Nb1 Qf4 Bf6 Bf3 f1Q+ Nce2 Qh3 Nc3 Qg4 Nb5 Qg6 Nc7 Bg7 Bc5 Bf6 Nh3 Bg7 Rg1 h1N Bb6 Bf6 Nf2 Bg7 Ke2 d3+ Kf1 d2 Ke2 d4 Nd3 Bf6 Ne1 Bg7 Qd5+ Bd7 Qa5 d1Q+ Kf1 Qc1 Ke2 Bc6 Kd3 Be4+ Ke2 Nba3 Rb1 a1B Rb2 d3+ Kf1 d2 Ke2 Nb1 Rg2 Rh3 Rg4 Rg3 Rg5 Bd5 Kd3 Qd1 Qe5 Be4+ Kd4 Qc1 Kc5 Bf6 Qf4 Bg7 Ra2 Baf6 Kb5 Qa3 Rb2 Qa1 Bh3 Qgf7 Bg6 Bd3 Bge4 Qfe8+ Bc6 Bh7 Bf5 Qg6 Bce4 Nca3+
1q2NN1K/B1R1rrQ1/1r2q3/R1rQbR1B/Bn6/RnbPPn2/6p1/5k1b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Kd7 Kg3 Ke6 Kf4 Kd5 b4 Kd4 h4 f5 h5 g5+ Kg3 a5 d3 c5 h6 a4 b6 c3 b7 a3 e6 c2 h7 c4 b5 a2 e7 c3 e8B f4+ Kg2 f3+ Kg3 f2 b6 Bg7 Bh5 Nh6 Bh3 f1R Nd2 Ke3 Ngf3 Re8 h8Q Na6 b8R Nb4 b7 Re7 Nd4 Nf7 Ne6 Ra6 Nf8 Ne5 Ra8 Rb6 b8R Rff7 Rb7 Nf3 Rc7 Bb7 Ra5 Qb8 Rf1 Bd4 Bb2 c1N Qg7 c2 Ne4 Bc3 Nf6 Nb3 Ne8 c1R Rf2 Bd5 Qh1 Kd2 Qg2 Ke1 e3 Be4 Rb1 a1Q Ra3 Qa2 Ra1 Nc5 Ra5 Qe6 R1a3 Nb3 Ba1 Nh2 Rff5 Nf3 Qa2 Bb7 Bg2 Bc6 Bh1 Kf1 Bb2 Bf6 Be5 Rc5 Bd6 Bc3 Be5 Nd2 Qd5 Nb3 Bd4 Ke1 Kg2 g3 Kh3 g2 Kg4 g1B Bg2 Bh2 Bh1 Ng1 Bf3 Kf1 Bd1+ Nf3 Bc2 Nc1 Bd1 Be5 Ba4 Rcb5 Bc5 Nb3 Bd4 Ra6 Ba7 Rc5 Bg6 Rb6 Kh5 g4 Kh6 g3 Kh7 Bb7 Bh5 Bc6 Qd6 Bb7 Rg5 Nfd4 Kh8 Bh1 Qd5 g2 Rf5+ Nf3
B2r2k1/3B2n1/n4QNK/2NqqRQR/2r1nB1b/b2pBPq1/2P2n2/1bN5 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 e5 g4 a5 g5 h5 b6 d5 b7 e4 b5 h3 f3 h4 f6 d3 Ke3 a4 Kf4 h2 b6 e3 Qd2 d4 Nc3 a3 Bh3 a2 Qe1 e2 Na4 d2 Qf1 d1N Qf2 e1B Be3 d3 Bd7 h3 Nc5 Nc3 Qh4 Na6 b8B Nh6 b7 Kg8 g6 Ne4 g7 Nf5 Qg5 Bh4 Ne2 Rh6 Rab1 a1Q Rb5 Qe5+ Kg4 Qdc7 Nc1 Qc6 Bc7 Qcd5 b8Q Bb7 Qe8 Rd8 Qe7 Rg6 Kh5 Bc8 Qf4 Rg4 Qg5 Qg3 Bcf4 Qe5 Be8 Be6 Bd7 Ba2 Qd6 Bb1 f7+ Kh7 g8B+ Kh8 Qd5 Ng7+ Kh6 Be7 f8N Bd6 Na4 Ba3 Qd4 Qd5 Nc5 Qe5 Re1 h1N Bd5 h2 Ba8 Kg8 Ng6 Nhf2 Rh1 Qd5 Qdf6 Qe5 Rg1 h1Q Rg2 Qe1 Rh2 Qe6 Na4 Qc3 Rf5 Qd5 Nc5 Qce5 Bd2 Nc3 Bfe3 Rc4 Bf4 Nce4 Bde3 Qg4 Rh3 Bg3 Rh5 Bh4 Ba4 Qg1 Bd7 Qg3
3NbQ1r/1rb1N3/3qb2R/nRqB3n/1r4Nk/1NP2p1n/1r3PB1/2KQ2B1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 d4 f5 Kd2 Kf7 g4 Kf6 d5 Kg5 c6 e5 b6 a5 d6 h5 c7 f4 d7 a4 c3 a3 b7 a2 Bg2 h3 Qf3 e3+ Kd1 e4 Rh2 e2+ Kc2 e1Q Qd1 e3 Bh1 h4 Bd5 e2 Ba3 Nc6 b8Q Na5 Qb4 Bd6 Qb3 Ra7 Be4 Rb7 Qe6 Nf6 Bg2 Nh5 Rh1 h2 Kc1 h3 Nd2 Kh4 Rb1 a1R g5 Ra2 g6 Rab2 g7 Qg5 g8N Qc5 d8N Bd7 c8B Be8 Qg6 Bc7 Qh6 Qf1 Bd7 e1N Nb3 Qa6 Qf8 Qad6 Be6 Nf3 Ne7 Ng5 Bed5 Rb4 Ne2 f3 Ned4 Rh7 Nc2 Rf7 Rg1 h1R Ne3 h2 Ng4 Nh3 Re1 Rh7 Re6 Rh8 Rh6 Re1 Ba8 h1B Bd5 Rb7 Bb4 Re4 Ba3 Qa7 Bc5 Reb4 Bd4 Qac5 Be5 Bd7 Bh2 Be8 Bf1 Bg2 Bg1 Nf4 Bd3 Bh3 Bf1 Rd2 Bg2 Rb2 Nf6 Be6 Ng4 Nc6 Ra1 Nh3 Ra5 Rf4 Rb5 Na5 Nf6 Rc4 Ng4 Rb4
6Br/5R1R/k1q2nKN/1b2bq2/Nr6/BP3rQP/n1BrBN1p/b1n2Q2 w - - 0 1 illegal: No proof kernel
1QN1qq2/6n1/k2nBB1R/1b1R1NrB/4Pr2/qP4qN/2nb3p/1Kr1Q1N1 w - - 0 1 illegal: No possible last move, all moves rejected
Q1B3R1/Q6b/BN2brn1/2R4K/2P5/Rp3rBB/2rq1P1b/1rnqN1nk w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kf3 h5 c4 d5 g4 b5 a4 e5 g6+ Kf6 a5 h4 a6 d3 g7 d4 a7 b3 Ne2 e4+ Kf4 d2 Bg2 e3 Bh3 b2 Qf1 d1R Rh2 d3 Ng1 e2 Ra5 e1N Qg2 d2 Qe4 b4 Re5 b3 Ra5 Nd3+ Kf3 Kg5 Ra3 Nc6 f6 Bd6 f7 Rh6 f8Q Nge7 g8R+ Ng6 Nc3 b1R Qf7 Be6 Nd5 Rf1 Rh1 Bh2 Nb6 Rd1 Bb2 Rdc1 Be5 Rc2 Bg3 Nc1 Qg7 Rb8 a8B Qd5 Bb7 Rf8+ Qf7 Qd6 Ba6 d1Q+ Ne2 Q1d2 Nf4 Qd8 Nd3 Nd4+ Kg2 Nde2 Kf3 Qd1 Ne1 Q8d2 Qa8 Ng1+ Ke4 Nge2 Qfa7 Rf7 Rg1 Rf3 Rg2 Ng1 Rc8 Ne7 Rc6 Rhf6 Rc5+ Kg6 g5 Kh5 Ke5 Ng6+ Ke4 Ne5 g6 Kg5 Bf5 h3 g7 Ng6 g8B Kh5 Bd6 Kh4 Bb8 Bf7 Bfc8 Be6 Bd6 Be5 Bf7 h2 Be8 Kh3 Bed7 h1B Bc7 Nf4 Rg8 Kh2 Bd6 Ng6 Bb8 Bf7 Bh3 Bg2 Bc7 Kh1 Bb8 Bh2 Bf4 Rd6 Kf5 Rf6+ Kg4 Be6+ Kh5 Bf1 Bg3 Bd3 Na4 Nf8 Nb6 Bh7 Qe4 Ng6 Qc6 Qe3 Qca8 Qed2
r2K1nq1/1N1B2b1/B3b3/B5rn/bP3b1N/4Q2R/BkP1np2/q1RQ2Rr w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 d5 g4 f5 e4+ d3 b6 h5 g6 a5 g7 a4 b7 a3 g5 d4 g6 a2 Qd2 f3 Qg5 h4 Rh3 f2 Qf6 f4 Nf3 Nd7+ Ke6 Bd6 b8R Rh5 e5 Rg5 Nbd2+ Kc3 Nc4 d2 Qe7 d1N Be3 d3 Bb6 d2 Na5 Kb2 Rc1 a1B Ba6 f1B Nb7 Nc3 Ba5 Ngf6 g8B d1Q g7 Nf8+ Kf7 Bg4 e6 Nh5 Qe8 Bc7 e7 Bb5 Qd7 Qf1 e8Q Ba4 Qd1 Ne2 Qe3 Qd5+ Ke7 Be6 Bf7 Qg1 g8B Qh1 Nh2 f3 Be8 f2 Bd7 Bf4 Kd8 Qdg2 Nf3 Qhg1 Rh1 h3 Nh4 h2 Bf7 Qe1 Rg1 h1R Bg8 Ka2 Bf7 Bg7 Rc8 Kb2 Rb8 Bg4 Ba2 Qd5 Rc8 Qg8 Rb8 Be6 Rc8 Bb8 Rc3 Qf1 Qed4 Qe1 Rh3+ Qc3 Qe3 Qa3 Bb3 Qa1 Ba2 Bf4+
r2b3N/b2Q1b2/Rb1N3n/4B1N1/Pr1KQRqk/q4p1q/R1P5/r2BR2n w - - 0 1 illegal: No possible last move
2n4b/1Br3n1/5Qb1/2BR2q1/P1rNp1kn/N3r2R/2Rqr1PQ/2K1bB1B w - - 0 1 illegal: Other
2R2R2/1K2nBQN/3kr2b/1q1N4/p1Q1b2P/1qq2Nnr/1q2PQ1B/b1r4Q w - - 0 1 illegal: No possible last move, all moves rejected
1bK1B2R/1nnN1nQ1/1N3B2/2q1BQrP/6Nq/r4q1N/1R1p1P2/1bk2qb1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 g5 h4 a5 c4 d5 h5 g3 f6 a4 f7 g2 b6 e5+ Kb5 g4 c5 d3 c6 d4 b7 g3 c7 d2 Kb6 d3 b5 a3 Ra2 Na6 b8Q Bd6 f8B Qh4 Bh6 Bf5 c8N Nc7 Qb3 d1Q Kb7 d2 b6 Qf3 Bg7 Nh6 Qa7 Nf7 Ba6 Rg8 Nh3 g1Q Bf6 g2 Qe6 Qf1 Bb2 g1B Bb5 Rg5 Be8 Kd3+ Qd5+ Kc2 Nc3 e4 Nd1 e3 Bbe5+ Kb1 Rb2+ Kc1 Qe4 e2 Ne3 e1Q Ng4 a2 Rh2 a1N Rg2 Qb3 Qf3 Bb1 Qf5 Qbc4 Rg3 Qee2 Rd3 Be7 Rd8 Nb3 Qa1 Ra5 Kb8 Ra2 b7 Qc5 Nb6 Ra3 Kc8 Qf3 b8N Na5 N8d7 Nb7 Qa2 Nh8 Qg8 Bd6 Qgg6 Nf7 Qg7 Nh6 Bg6 Nf7 Rh8 Nh6 Be8 Nf7 Bd4 Bg3 Bde5 Ne6+ Bc7 Qb4 Bcd8 Bb8 Be5 Nc7 Bdf6 Qc5
r3Q1R1/1rR5/4q1nR/3N1K1P/B3pQr1/BB3P1n/1Rbnb2b/1qN1k2n w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 c4 e5 b4 d5+ Kd3 g5 h4 a4 c5 a3 b6 a2 c6 e4+ Kc2 Ke5 f6 d3+ Kd2 Kd4 c7 g3 b7 g4 h5 g2 f3 g3 f7 Qe8 b5 Qe6 b6 Na6 b8Q Nc5 b7 Ne7 Qe2 Ng6 Rh2 Bd6 f8R Nb3+ Kd1 d2 Rf7 Rh7 Qb5 Ke3 Ne2 Kf2 Qe8 d4 Ba3 Rg7 Kc2 d1N Nbc3 Nd2 Nd5 Ke1 Nc1 g1N Bb5 g2 Ba4 Nf2 Rf6 d3+ Kc3 Rh7 Kd4 Nh1 Rb1 a1Q+ Rb2 Bd7 c8B Qb1 Ke3 Bg3 Qf4 Nh3 b8R g1R Ba6 Rg7 Bc4 Bb5 Bcb3 Rb7 Rc2 Ba6 Rc7 Bc4 Rf2 Bh2 Rbc8 Rg4 Rg2 Nh4 Rh6 Ng6 Kd4 Nf1 Rc2 d2 Rb2 d1B Rb8 Bce2 Rd8 Qd7 Rb8 Bc2 Rbc8 Nh8 Ke5 Nd2 Kf6 Qe7+ Kf5 Qd6 Qe7 Ng6 Rg8 Qa6 Qe8 Qe6+
1n1rB3/RN4qB/1R1r1b1n/1Q1r3p/6PB/Knq1P1N1/2b4B/Qb2kb1Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Na6 b4 Ke7 g4 Kd6 c4 Ke5 Kc2 Ke4 Kb3 d5 g6 h5 b6 f5 c5 d3 b7 f3 b8B f4 g7 d4 b5 f2 c6 d2 c7 Ke3 b6 f3 b7 d3 Bg2 f1N Ba3 Kf2 e3 Qd4 Qc2 Be7 Rh2 Nh6 g8B Bf5 c8Q Qg7 Ne2 d1B Qc6 d2 Nbc3 Ke1 Bh7 f2 Ne4 Rd8 Nd6 Rd7 Bc7 Rad8 b8Q Bg6 Qb4 Nb8 Nb7 a5 Bg3 Bg5 Bh4 a4+ Ka2 Bd3 Qc1 Bf6 Qbe4 Rd4 Bd6 a3 Qf3 Be4 Rb1 Rd3 Rb6 Bg6 Bf4 R3d6 Qb5 Bd3 Qcb2 Ba4 Qh3 d1R Bc6 Nd2 Be8 Be4 Qf3 Bg6 Rg2 Be4 Bh2 Bb1+ Ka1 a2 Ng3 f1B Rf2 Bc3 Qh1 Bf6 Qd4 Bb3 Kb2 Ba4 Rf4 Bac2 Ka3 Nb3 Qde5 R1d2 Ra4 R2d5 Qb2 a1Q+ Qa2 Nf5 Ra7 Qc3 Qa1 Nh6
1b2bq2/R3B3/1NR2rQQ/n1Bq1BPK/5Q1r/8/Q1pnPb1r/rn2k1N1 w - - 0 1 illegal: No possible last move, all moves rejected
4R1K1/N2NQnRq/4R1q1/b1rBnQPR/2p2qr1/4Pnk1/QB2r2r/3b4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 f5+ Kf3 c5 b4 a5 g4 c4 g5 a4 b6 h3 b5 h4 b7 h2 b6 h3 Qd2 a3 Qd1 a2 Qb3 Rh4 Bg2 Nh6 Nc3 Rg4 Bb2 Nf7 Re1 a1R Qa2 Nd7 b8R Qe8 b7 Ra5 Ra8 Bg7 b8R Rc5 Rb7 Rc1 Rc7 Rc2 Rb7 Qe6 Rc7 Qg6 Nb5+ Ke7 d6+ Ke6 Na7 Nde5+ Kf2 f3 Ke3 f2 d7 f1Q d8Q Bf6 Qf8 Bd8 Nf3 Kd5 Re7 Ba5 Rc7 Bd7 Re8 Ba4 Rce7 Kd6 d5 f4+ Kd4 Qf2+ e3 Re2 Ref1 Bd1 Re6+ Kd7 d6 Qg3 Nd2 f3+ Ne4 f2 Bf3 Qf4 Bg2 Nd8 Qf5 Ndf7 Bf3 Bb3 Rd1 f1N Rd3 Bd1 Ra3 Rc6 Kd5 Nd2 Rb3 Rc7 Rbb8 Rc6 Rg8 Rc7 Rg7 Rc6 Bg2 Ndf3 Rh8 Rc7 Rh5 Rc6 Rf1 h1R Nf6+ Kd8 d7 h2 Rf2 Kc7 Re8 Rc5+ Ke6 Kb6 Ke7 Kc7 Kf8 Kd6 Ng8 Kd5 d8Q+ Qd6+ Qe7 Qg6 Qc8 Ke4 Nf6+ Kd3 Nd7 Ke4 Qd6 Rf1 Qe7 h1Q Kg8 Rg1 Bh3 R1g2 Rf1 Rh2 Bg2 Kf5 Rf2 Rgh4 Rf1 Kg4 Rf2 Kg3 Rf1 Ng1 Bd5 Rg4 Rf2 Qfe4 Rf6 Ngf3 Re6 Qf4 Qf6 Qf1 Qcd8 Qh3 Qde7 Qh4 Rh8 Qhh6 Qf5 Qf6 Rhh7 Qhg6 Rh5 Qh6 Bc3 Qfg6 Bb2 Qhh7+
2B2q1N/2b2N1Q/3NbR2/krqRP1n1/4nrr1/1Pp4n/1BQ1K2Q/b2b2Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1qR1N1Q1/6NB/r1RbbB1k/1q1BP3/q4PQ1/3rpr2/3r2NK/1nN2nn1 w - - 0 1 illegal: No proof kernel
2kq3r/bq3n1n/3BRN2/1R2P1b1/rQPNBNp1/1q1Q1n2/8/Rb1K1R1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 g5 b4 d5 c4 Kd7 e4 a5 b6 f5 e5 a4 b7 g4 b5 a3 b6 d3 h6 a2 h7 d4 h5 d2+ Ke2 d3+ Kf2 f3 h6 f4 Qe2 d1Q Rh5 d2 Qe4 Ra4 Rh1 Nf6 Nc3 Be7 Bd3 Qb3 Nd5 d1Q Ba3 Nc6 b8Q Qdb1 b7 Q1b2+ Kf1 f2 Nf3 Qb1+ Ke2 f1N Qe3 Nh2 Nd4 Nf3 Bd6 Q1b2+ Bc2 Qb1 Bg6 Qe4 Raf1 a1B Rhg1 Qeb1 Be4 Bb2 Qd3 Bc1 Qa7 Be3 b8R+ Qb7 Qc5 Q1b3 Qb4 Bf2 Nc2 Ba7 Kd1 Nh5 Bc5 Bg5 Bd6 Nf6 Rh1 Nd2 Rhg1 f3 Rh1 f2 Rhg1 Rg8 h8N Nf3 Ng6 Rh8 Ngf4 Nh7 Rh1 Qf8 Rhg1 Nd8 Rh1 Nf7 Nf6+ Kd8 Rhg1 Qc6 Rb6 Bf5 Rb5 Kc8 Rh1 Qd8 Rhg1 Nf8 h7 Qb7 Rh1 Rg8 h8R Nh7 Rh6 Re8 Rg8 Rf8 Rg7 Rh8 Rhh1 Bg6 Rg8 Bf5 Re8 Bg6 Re6 Bf5 Re1 f1N Rg1 Ng3 Rgf1 Qc3 Nd4 Nh1 Qa5 Bg6 Qb4 Qb3+ Kc1 Qdc7 Qe3 Rf8 Bc6 Bb1 Qd3 Rh8 Be4 Qd8 Rd1 Ba2 Rde1 Nh4 Kd2 Nf3+ Ke2 Qa3 Ra1 Bb1 Kd1 Qb3+
bNN1Q2n/R4b2/BKn3bN/r1r1P2p/7b/knN2q2/P6q/BRr1R2Q w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 g4 Kd6 e4 Kc5 g6 h5 g7 b5 d3 f5 g5 f3 Ke3 f2 d6 f4+ Kf3 b3 e5 Kb4 Ke4 c5 Kd5 f3 d7 c4 d4 c3 g6 c2 Nh3 b2 Be3 c1N Ng1 Qh4 d8R Qh2 Rd7 Be7 Nc3 b1R Nge2 Bh4 Ra7 Nh6 g8N Nb3 g7 Nf7 Nh6 Rc1 g8N Nc6 Ne7 Bb7 Rb1 Rhc8 Rg1 Rc7 Nc8 Nh8 Qe1 Nd8+ Kd6 Rc5 d5 Nc6 Kc7 Nb8+ Kb6 Nc6 Bg2 f1B d6 f2 Nd4 Bc4 d7 f1Q d8Q Qf3 Bf1 Bd5 Qe8 Bf7 Na4+ Ka3 Nc3+ Nba5 Bf2 b4 Ba6 b3 Qe4 b2 Re1 Nb3 Be3 Qg4 Qh1 Qf3 Bf2 Ne7 Be3 Be4 Nc6 Bed5 Ra1 b1B Nb8 Nc6 Bd4 Bc2 Rb1 Bcg6 Ne2 Bde4 Ba1 Bed5 Nc3 Bde4 Re7 Ra7 Be2 Raa5 Ba6 Nd8 Rc7 Ba8 Ra7 Nc6
2q1N1Rr/B2B1N1N/Q1N2qbn/q1n1p2R/1K5b/Q2Pq3/1P4k1/1rn2bB1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg6 d6 c5 d7 a5 b6 e5 g5 Kf5 d3 h5 Kd2 e3+ Kc3 c4 b7 a4 g6 h3 g7 h4 Nd2 h2 Ngf3 Kg4 f5 Kg3 f6 a3 f7 a2 Qc2 e2 Ng5 e1Q Rb1 a1Q Qd1 h3 Nh7 Qf6 d8N Bf5 Nc6 Bg6 Qa4 Qe3 Qa6 Nh6 g8N Nd7 b8B Nc5 Kb4 c3 Ba7 c2 Nc4 Be7 f8Q Kf3 Rg1 h1B Nd6 h2 Bh3 Bg2 Ne8 h1Q Bd7 Qh3 Rh1 Qhf5 Rh5 Bf1 Bd2 c1N Be1 N1b3 Bf2 Nc1 Bg1 Qa2 Ra1 Qd5 Ra5 Kg2 Rb5 Rc8 Rb8 Rc7 Nd8 Qf5e6 Nf7 Bd8 Ne7 Q6h3 Bb5 Qc8 Bd7 Rc6 Qa2 Ra6 Nc6 Be7 Qc4 Ra1 Qa6 Bd8 Qd6 Rb1 Qa3 Qa2 Qe6 Qf5 Qc4 Bh4 Qca6 Qf6 Ng7 Qc7 Rg8 Qc8 Ne8 Qd5 Bf5 Qdd8 Bd7 Qa5+
k7/1bnrR1N1/4R3/1Brp3b/1Q2n3/qKR1Rr1q/BPQPNb1b/B3n3 w - - 0 1 illegal: Other
2b3qB/3Nn2B/3B2bn/1q1pb1k1/B2P1N1n/4KR1n/rr1QrNP1/QR6 w - - 0 1 illegal: No possible last move, all moves rejected
K2bbqQn/r1qR4/k7/P1q1R3/1R1B2rn/B1B4P/pN3bQ1/qN2r2B w - - 0 1 illegal: No proof kernel
1N1q4/Q1B1r3/1K2b1RQ/PB1BQ1qq/1b2Nn2/1p1b2PQ/7r/nk1b1R1r w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 a4 Kd6 e4 Kc5 e5 Kd4 d6 b5 d3 c5 g6 h5 g7 f5 e6 b3 g3 b2 e7 b4 e8Q c4 a5 h4 d7 f3 Nc3 b1Q Qc2 h3 Qce2 b3 Nd1 c3 Qg6 h2 Qh6 c2 Bf4 c1Q Bc7 f4 Nc3 Nc6 Ne4 Nf6 g8B Ra7 Bd5 Nh5 Qe1 Qd1 Be2 Qg5 d8Q Nb4 Qd7 Nc2 Qh3 Be6 Bf1 Rb7 Qe2 Qa2 Rc1 Na1 Rc6 Bb4 Rb6 Bc8 Rg6 Qa4 Qe1 Qd7 Be2 Qd6 Bf1 Be6 Ne2+ Ke5 Rg1 h1R Nd4 Rh7 Qe2 Re7 Qb2 Rb8 Be2 Rh8 Rf1 Rhh7 Qh4 Rh8 Nc6+ Kf5 d4 Qd8 Nb8 Rhh7 Re1 Rh8 Bb5 Rh2+ Kf1 f2 Qh3+ Qdg4 Rc1 Rh1+ Kg2 f1B+ Kf2 Be2 Rf1 f3 Qc3 Nf4 Ke3 f2 Qc5 Bd1 Qa7 Nh5+ Kd3 Nf4+ Kc4 Be1 Kc5 Bb4+ Kb6 Rh2 Rh1 f1B Rg1 Bd3 Rf1 Rf8 Bdc6 Qh5 d5 Rh8 d6 Ke5 d7+ Kd4 Bd5 Qgg5 Nc5 Kc3 Ne4+ Kc2 Rf2+ Kc1 Rf1 Qe8 d8Q Kb1 Qd6 Qd8 Qe5 Qhg4 Qhg7 Rh4 Qh8 Q4h5 Qh6 Rh1 Qhf5 R4h2 Qg4 Bf7 Qh3 Be6
2N3qB/2B5/1Q2BRrP/n3N1r1/1K3Bq1/P3pn2/N2rRrQ1/1kn1bbb1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 Kd7 Kd2 Kd6 f4 c5 h4 g5 f6 e5 f5 b5 h5 g3 f7 g4 h6 g2 f6 e4 a3 c4 Qa4 e3+ Kc2 g3 Qb3 c3 Bc4 Bh3 Bd3 Nd7 Ne2 g1Q Qa2 g2 Kb3 c2 Bb2 Ne7 Rh2 Rg8 Bf5 Rg5 Ng3 Ra6 Be6 Nc6 Nc3 Nde5 Rf1 Nf3 Ba1 Bg7 f8N Rb6 Ng6 Qg8 f7 c1N+ Kc2 Bf6 Ne5 Na5 f8B+ Be7 Kb2 b3 Bg7 b4 Bh8 Bd8 Rf2 Qd1 Rf1 g1B Re2 Be7 Rff2 Bf1 Nge4+ Kc7 d6+ Kb7 d5 Ka6 Na4 Kb5 d7 Rd6 d8Q Qd4+ Kb1 b2 Kc2 b1R Nb6 Rd7 Nc8 Ka4 d6 Qc4+ Kd1 b3 Qb6 Qb4 Qd2 b2 Kc2 Rg6 Qd5 Bh4 Qa2 Rf7 d7 Rf5 d8B Rfg5 Bc7 Qd4 Nf6 Qg4 Nd5 Bg3 Nb4 Bh4 Rh2 Be1 Ref2 Ncb3 Re2 Rd1 Rhf2 Rd2+ Kc3 b1R Qc2 Rb2 Na2 Nh4 Rf6 Nf3 Qf5 Nc1 Qf4+ Rb4 Qh2 Rf4 Qg2 Nd4 Bg7 Rf2 Bf8 Nf3 Bfd6 Qe8 Nc6 Qf8 Bf4 Qg8 Ne5 Nc4 Nc6 Nd6 Rf5 Nb7 Kc4 Na5+ Kc5 Rd1 Bh8 Rd2 Ne5 Nc4 Qa5+ Kb3 Rf6 Kb2 Kb4 Kb1 Qb6 Na5
BB3QN1/6Nn/N4n1P/3Pr1q1/kb1r4/1R2pb2/K1B3qR/Brn1bbQ1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 f4 g5 a4 c5 d4 b5 Kd2 e5 Kc2 g3 Kb3 c4+ Ka2 g2 h5 g4 h6 e4 f6 e3 a5 g3 f7 c3 d6 Kc6 d5+ Kc5 d7 c2 f5 Qg5 d8N Nd7 f6 Ba6 Ne2 g1Q Nd2 g2 Ng3 Rc8 Bb2 c1N+ Kb1 b3 Nc6 b4 Bd3 Bc4 a6 Kb5 Bc2 Bf1 Ne7 Rc4 a7 Rd4 a8B Qh2 Ra6 g1B Ra3 Qg2 Rh2 Bf2 Ba1 b2 Nh5 Be1 Rb3 Ka4 Ng7 Rh7 Ne4 Rh8 Ng6 Bc5 Ne7 Nf8 Qg4 Nh7 f8Q Bd6 f7 Ngf6 Qg3 Bc5 Qf2 Rg8 Qg1 Rh8 Qd8 Re8 Ng8 Re5 f8B Qf3 Bd6 Qfg2 Bb8 Bf8 Bd1 Be7 Qf8 Bc5 Be2 Be7 Kc2 b1B+ Kb2 Bc2 Bd3 Bd1+ Bc2 Bf3 Rd3+ b3 Nc5+ Kb4 Na6+ Ka4 Kb1 B7b4 Rc3 Kb5 Rd3 b2 Rb3 Ka4 Nh5 Ne2 Ka2 b1R Ng7 Nc1+
2b1K2k/b3N1R1/n1r1BB1P/1p1R1P2/b1Q1r3/4N1n1/qq1NR1Rq/2Qnq3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Ke3 g5 Kd4 Kg7 Kc5 e5+ d6 b5 d4 b3 a4 c6 f4 b2 h4 g3 h5 g4 f6+ Kh7 f7 g2 h6 g3 d5 e4 a5 e3 a6 e2 f5 e1N a7 Nc2 Bc4 Ne7 d7 Ng8+ d6 Nf6 Nd2 b1B Nh3 g1Q+ Nf2 g2 Ra2 Nh5 Bb2 Qh2 Qc1 g1Q Be6 Qa5 d8R Qe1 Rg1 Ng3 Bf6 Ne3 Rd7 Nd1 Ng4 Bc2 Rg2 Ba4 Ne3 Bg7 Rb2 Re8 f8N+ Kh8 Rf7 Re7 d7 Na6+ Kd6 c5 d8R c4 Kc6 c3 Rd5 Rb8 a8Q c2 Kd6 Re8 Qc6 Rb7 Qc4 Rc7 Bg5 Bd4 Rg7 Ba7 Bf6 Bb3 Re2 Qa2 Rg2 Rc5 Re2 Ba4 Rg2 Rd8+ Ke7 Rc6 Re2 Rd7+ Ke8 Re7+ Kd8 Qhh1 Rg2 Nc5 Bg8 Qb3 Nb1 Qbb4 Qd2 Re4 Be6 c1Q Ke8 Qcc3 Qc1 Qh2 Rbe2 Qa1 Nd2 Qbb2 Nd7 Ba6 Nb6 Qaa2 Nc8 Bb7 Ne7 Na6 Rd3 Bc8 Rd7 Qe5 Rd5 Qeb2
K5B1/n2k1q2/1RR2RPP/rRqr3Q/NQ3p2/BQ2n3/1bb5/1Nbr1r1q w - - 0 1 illegal: No proof kernel
rk1n4/3Q2nb/1b1r2pq/2BP1Q2/BK2qRRn/r1n5/QNP1N2Q/4B1b1 w - - 0 1 illegal: No proof kernel
1Q2br2/bq2b2k/1r1N1PnN/1qq1P1B1/1Nq2B1n/7R/K1pn1R1N/3B3Q w - - 0 1 illegal: No proof kernel
bn5R/nRbrk3/2B1p1B1/4Prbb/q3K2Q/2N2n2/2rP2q1/NQ2Q1QR w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 h6 g5 Bb7 b3 Qd7 g6 Qd6 Bb2 Bc8 Bf6 Qd8 Bg5 hxg5 Kf2 f5 Kf3 a5 e4 c5 h4 e6 g7 a4 h5 c4 b6 a3 b4 a2 b5 c3 h6 c2 d6 c1R h7 g4+ Ke2 f3+ Kd3 g3 b7 f4 d7+ Ke7 b6 g2 Ne2 g1N Rh4 f2 Rh5 f3 Nd4 Ra5 Nc2 Rf5 Bg2 Qe8 Nc3 f1Q+ Kd4 f2 e5 Nf3+ Ke4 Qg1 d8R f1B Rb1 a1B Qe1 Be2 Rh1 Qa4+ Rb4 Bb2 Na1 Qf2 Qg1 Rc2 Qe1 Ba3 Qg1 Nc6 b8Q Na7 b7 Qg3 Qa8 Qh3 b8Q Nf6+ Ke3 Qg4 g8B Bb7 Bf7 Nd7 Bg6 Bc6 Rb3 Bd6 Rb7 Bc7 Qe1 Rg8 h8Q Rg7 Rc8 Bd1 Qhh4+ Qg5+ Kd3 Rh7 Rd8 Bh6 Rh8 Rhf7 Qg8 Rg7 Qac8 Nb8 Qh7 Bd5 Qcg8 Bc6 Rb6 Ba8 Rb7 Nd4 Bc6 Bh5 Ke4 Rgf7 Qhf2 Nf3+ Qd4 Qg2 Qc4 Qa3 Qb3 Bg5 Qbb1 Bg4 Qh3 Bh5 Qhh4 Qa4+ Rb4 Qf1 Na2 Bf6 Nc3 Rh7 Be8 Kd8 Qg1 Rd7 Bg6+ Ke7 Qhf2 Qg2 Qh4 Qb5 Rb3 Bg5 Rb2 Qa6 Rb7 Qa4+
2r5/BB1QQ1nb/1q1P1N1K/1q1n1Rrn/1B1q1P2/1bpBnQ2/1bR5/1N4k1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 a5 b4 c5 g4 e5+ Kh5 a4 g5 a3 d6 h3 d3 e3 g6 e2 d7 e1Q b6 e4 b7 a2 b5 h2 g7 e3 b6 e2 Qc2 c4 Nd2 Ke3 d4 Kf2 d5 Ba3 d6 Nf6+ Kh6 Nc6 b8B Bb2 g8B Ra5 b7 Nd5 Kh5 Nce7 Bf7 Nf5 Bh3 Qb6 d8Q Be6 Qb3 Ng7+ Kh6 Qf1 Bf5 e1N Qe7 Rc8 Ne2 Ng2 Nb1 Nge3 Ng3 c3 Qd1 Qfb5 Ba7 Qd4 Re1 h1N Nh5 Ng3 Nf6 N3h5 b8Q Qbb6 Qd3 Rb5 Re2+ Kg1 Rc2 Rbc5 Nd2 Qb5 Rb1 a1Q Qbb7 Qaa6 Qbd7 Qab6 B5g6 Bf5 Qe2 Bd3 Qf3 Bc4 Ra1 Bb3 Nb1 Ng3 Kg5 h5 Bd3 h4 Ra5 h3 Kh6 h2 Bfg6 h1B Bge4 Nc7 Bb7 Ncd5 Bd2 N3h5 Bc1 Ba1 Ba3 Bb2 Bb4 Bg2 Qfh3 Be4 Qf3 Bh7 Rh2 Nc7 Re2 Rg5 Rc2 Qbc4 Rc5 Qcb5 Rf5 Ncd5
1qn2Rn1/R1r5/1B1P1q2/rQRqRbP1/npr3N1/1B4N1/1QN5/K3b1kn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 d4 Kd6 Kd2 e5 Kc2 h5 Kb2 c5 g4 b5 f4 c4 g5 e4 a5 h3 a6 e3 a7 b3 f6 h2 f7 e2 f5 e1Q f6 h4 Qg4 h3 Qe2 Bf5 Na3 Qf2 Be3 Nc6 Re1 c3+ Ka1 Nce7 Qb2 c2 Ne2 Rh4 Ng3 Qb8 Bc4 Nc8 Rhf1 Be7 f8R h1N f7 h2 Re2 Bd8 Rc1 Ba5 Ree1 Qf3 Bf2 Bd2 Re5 b4 Bg1 Be1 Be3 Kd7 d6 Kc6 d7 Re4 d8N+ Kd6 Rb1 c1R d5 Rd4 Nc2 Kc5 d6+ Qd5 Ree8 Qe6 Nc6 Qf6 Bd3 Kd5 Ne5 Rc4 Ng4 Rc7 Be4+ Kc4 Bg2 Kd3 Re5 Rc4 Bb6 Rc7 Nce3 R1c4 Nc2 Kd2 Bd5 Kd3 Ne4 Ke2 Rc1 Kf1 Be6 R7c5 Ng3+ Kg1 Nce3 Rc7 Bd5 Re4 Rc5 Rc4 Nc2 Nf2 Rfe8 h1Q f8Q Qe4 Qe7 Nh1 Qd7 Qg2 Be6 Qd5 Rf8 Qg6 Qb5 Qf6 Qc3 b2+ Ka2 b1N Ka1 Qbb7 Qb2 Nc3 Bf7 Na4 Be6 Rb8 a8R Qa7 Bf7 Rbb7 Be6 Qb8 Bf7 Ra7 Be6 Ra5 Ra7 Rc3 Bf7 Qdb7 Ba2 Rc4 Bb3 Qd5
q3QN2/3n1B1K/1R1pb2q/r5QB/RrrP4/q2N1qPn/2b2QNQ/1kb5 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 Ke2 Kf7 Ke3 Kf6 Ke4 a5 c4 h5 f4 e5 d4 b3 b7 b2 g3 h3 c5 d6 b6 a4 c6 a3 c7 h4 Nd2 b1B+ Bd3 a2 Qb3 h2 Nc4 h3 Ne2 Bh6 Nb2 Be6 c8B Ne7 Qd5 Nd7 b8Q Bc2 b7 Ng6 Rhb1 Ra5 Qc7 h1R b8Q h2 Ba6 Qf8 Bc4 Rc1 Qe8 Qe7 Qdc5 Qd8 Bd5 Qa8 Qcb8 Rh7 Qh8+ Rg7 Qbe8 Bg5 Qh3 h1Q+ Qg2 Qh6 Qh2 Qh5 Nd1 Qh6 Rb6 Rb1 Nc1 Rb4 Ne3 Rg8 Rb1 a1Q Ng2 Qa3 Qb5 Rc4 Rb4 Qf8 Ra4 Bh6 Kf3 e4+ Kg4 e3 Kh5 e2 Qc5 e1Q Be2 Qf2 Nd3 Qe3 Bg4 Qf3 Qb5 Kg7 f6+ Kh7 f5 Bc1 f7 Nf4+ Kh4 Rb4 f6 Kg6 Bh5+ Kf5 Ba2+ Ke4 Qg5 Qg7 f8N Nh3 f7 Rh8 Ng6 Qgf6 f8Q Rh7 Bb3 Ne5 Bc4 Rc7 Qff7 Nd7 Nf8 Qe2 Ba2 Rcc4 Bb3 Qff1 Qf2 Qf3 Bg4 Qf6 Kh5 Qf3 Kh6 Qf6+ Kh7 Qd1 Ne5 Qdf3 Nc6 Kd3 Bh5 Bf4 Ba2 Bc1 Ne5+ Kc3+ Qf5 Kb2 Nd3+ Ka1 Bb3 Kb1 Qf4 Rc6 Bd5 Rc4 Qg5 Bg4 Bg8 Be6 Bgf7 Qh6+
1b5Q/3nq3/K1PRn1Bq/1R1r4/QR1r3Q/1bn2k1P/R1N3p1/N2bBqn1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 b4 a5 h3 d5+ Kc5 g5 c4 d3 b6 e5+ Kb5 d4 b7 d2 c5 g3 c6 d3 f6 g2 f7 a4 f5 a3 f6 a2 Qb3 d1N Na3 d2 Bc4 g4 Nf3 g1N Bb2 g3 Nc2 g2 Nfe1 Na6 b8R Bd6 f8Q Rh4 f7 Qf6 Qd8 Be6 f8Q Nc5 Bc3 Qh6 Qa4 Nf6 Qh8 Nfd7 Bd3+ Kf4 Qe7 Bb3 Bg6 e4 Rb7 Rg4 Qh4 Rd8 Rb6 Ne6 Ka6 Be5 b5 Bb8 Bb4 e3 Rb7 e2 b6 Nc3 Rd1 Nd4 Na1 Ne6 Nec2 e1Q Ra7 Bc7 b7 Kf3 b8R Rd4 Rb5 Bb8 Rb1 d1B Ba5 Bc4 Rb4 Bb3 Ra8 Ndf8 Ra7 R8d5 Rd7 Qee3 Rd6 Qeg5 Qh7 Nd7 Qh8 Nge2 Re1 Ng1 Re2 Qe7 Bb6 Rf4 Bf2 Rfd4 Be1 Bc4 Nb3 a1Q Rd2 Qc1 Nba1 Qb1 Ne3 Bcb3 Ra2 Qd3 Nec2 Qf1
1br1bqR1/nBn1r3/2pK2n1/4Q3/N1kB1QRn/2B2N1R/PP1b2qr/B7 w - - 0 1 illegal: Other
3qb1kb/NKnQR1q1/2p1rr2/R4R2/rNqP3b/Q1P2n1b/2B1R2B/1N6 w - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 d5 a4 dxe4 f3 exf3 axb5 Qd5 Bc4 Qd6 Bf1 Qd8 Kf2 f5 Ke3 Kf7 b4 g5 h4 a5 h6 e5 b6 f4+ Ke4 f2 h5 a4 b5 f3 h7 g4 h6 g3 b7 a3 c3 a2 b6 g2 Bd3 f1R Rh2 f2 Ne2 g1Q Bc2 Nd7 Kd5 e4 Kc6 e3 b8N Ngf6 b7 Ne8 Nf4 e2 Nd3 e1B Nb4 Ra4 d4 Qg8 Bf4 Bg7 Qg4 Be5 Rh5 Qg7 Rf5+ Bf6 Bh2 Ne5+ Kb5 Kf8 N8c6 Nf3 b8R Bd7 Rb7 Rg8 Kc5 Rh8 Na7 c6 Qh3 Nc7 Kb6 Be8 Qg4 Rg8 h8Q Kf7 Qh7 Rf8 Qhg6+ Kg8 Qh3 Be5 Qd6 Rf6 Qg4 Rh1 Qe7 f1B h7+ Kh8 Qc5 Bh4 Qa5 Bh3 Qc5 Nb5+ Rc7 Rf1 Kb7 Re1 Rd7 Nc7 Re7 Ra6 Qa5 Re3 Qa3 Ra4 Rh5 Re1 Qd7 Re3 Rf5 Re4 Nd2 Re3 Re1 a1Q Re2 Qa2 Nb1 Qc4 Qc1 Qgf7 Qa3 Kg7 h8R Re4 Rh6 Kg8 Rhh5 Qg7 Qa2 Bd6 Ra5 Ree6 Qa3 Be5 Rf5 Qg3 Bg1 Rg6 Bh2 Bh8 Qc1 Rgf6 Qa3 Qg7
q1Q1Bk2/nNB1n1b1/bp4R1/QqnPR3/r2Q3B/1B3P2/3r4/2NnKqb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 e5 g4 h5 d4 c5 d6 b3 d5 c4 f3 e4 f6 e3 a5 b6 g5 c3 g6 e2 a6 b2 g7 h3 a7 h4 Ra4 c2 Rg4 h2 Rg6 h3 Na3 b1Q Nc4 Nc6 Na5 Nge7 g8B Ba6 Qd4 Bg7 d7+ Kf8 f7 Qb5 Bf4 c1B Nb7 Be3 Bc7 Qc8 d8B Bf2+ Kd2 e1N Ne2 Nd3 Nc1 Nc5 Bc4 Bg1 Ke1 Rh5 Bh7 Rg5 Bg8 Rg2 Bb3 Rd2 Bh7 Be3 Rhg1 h1N R1g5 h2 Re5 Nf2 Bg8 Nd1 Bh7 Rb8 a8Q Bg1 Qa7 h1Q Bg8 Nf5 Bg5 Nfe7 Bh4 Ra8 Bh7 Qa4 Bg8 Bf1 Qa6 Na7 Qa5 Ba6 Rgg5 Qg2 Nd8 Nac6 Qb5 Bb7 Qbb4 Qb5 Rg6 Ra4 Qa5 Ba6 Nb7 Qa8 Rge6 Nd8 Bh7 Ndc6 Bg6 Na7 Bh5 Bh6 Rd6 Kg7 f8Q+ Kh7 Bf7 Bg7 Qc8 Qh3 Be8 Kg8 Rde6 Kf8 Rg6 Qhf1+
N5r1/Q3NB1Q/pr3kq1/1B1b1qq1/1r3PQ1/1BR1bn1K/2nB1P2/2qbR3 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 b5 axb5 gxh4 Be2 f5 Bf1 f4 exf4 Bg7 Nd2 Bh6 Nb1 Bf8 g4 Kf7 b4 d5 c4 h5 c5 e5 c6 e4 c7 d3 g5 d4 g6+ Kf6 g7 e3 b6 d2+ Ke2 a6 Kf3 e2 Kg2 e1Q b5 h3+ Kg3 h2 b7 h4+ Kg2 d3 b6 h3+ Kg3 Rh6 Na3 Qe4 Nb5 Ne7 g8B Qf5 Ne2 Nec6 Ned4 Nb4 Ra2 N8c6 b8Q Ne5 b7 Nf3 Rc2 Be6 c8B Bd5 Bf7 Bc5 Nc6 Be3 Rc3 Nc2 Ne7 Qb6 Rg1 h1R Nc7 h2 Bce6 Qb5 Qe2 d1Q Bd2 Qdb1 Qa7 Rb8 Na8 Rg8+ Bg6 Qc1 b8Q Qb6 Qbc7 Qbb1 Be1 d2 Qd7 d1B Bd2 Qb5 Bf7 Qcb1 Qd3 Qg5+ Qg4 Qd7 Qe4 Qdf5 Bb5 Qc1 Re1 Rf1 Kg2 h1Q+ Kg3 Qhh5 Be6 Rh1 Bgf7 Qhg6 Qd3 Rhh8 Qe4 R1h6 Kg2 Rb8 Kg3 Rhg8 Kg2 Bb7 Bb3 Bd5 Kg3 Ng1 Qh1 Nf3 Qh4 Rb6 Kh3 Rhh8 Qh6 Rgb8 Qh7 Rhg8 Bf1 Rb4 Bb5 Rb6
3rRB2/qn1k1b2/pr1bb1R1/3N2Pb/2QP1BQ1/K2nq2q/4B2Q/3Q1nN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 c5 Kd2 h5 Kc3 f5 Kb3 c4+ Ka2 a6 e4 c3 b4 c2 g4 h3 g5 h2 b6 f3 b5 f4 e5 f2 b7 f3 b6 h4 d6 h3 e6 Nd7 b8Q Qe7 b7 Rh6 Bc4 f1B Kb2 f2 Qa7 Nc5 b8B Nb7 Nc3 Be2 Qc5 f1N Nd5 Bh5 Be2 Nf6 Qc4 Ng4 Ka3 Ne5 Bf4 Nd3 Ba7 Qf7 e7 Be6 Bc5 Kd7 Rc1 Rd8 e8Q+ Kc8 Rb1 c1Q+ Rb2 Be7 Qh8 Qe3 Rb6 Bf8 Rc6+ Qc7 Qe5 Kd7 Qf5 Qb8 Qg4 Qa7 Rc7+ Ke8 Rg7 Bhf7 Rg6 Kd7 Nf3 Be7 Rg1 h1Q Bb4 Nd2 Re1 h2 Ng1 Nf1 Bc5 Qhf3 Bb4 h1B Bc5 Ke8 Bb4 Qh3 d7+ Kf8 Bc5 Bd6 Bb4 Bf3 Bc5 Re8 d8Q Be7 Qc7 Rd8 Be5 Ke8 Qe4 Bf5 Rg7 Nb4+ Bd3 B3h5 Qeg4 Rb6 Rg6 Qf2 Re3 Bd7 Be2 Nd3 Bcd6 Qfg3 Bg7 Qf4 Bf8 Bf5 Re5 Qfe3 Qb8 Kd7 Re4 Bf6 Re8 B5e6 Bh2 Bg7 Qbf4 Bh8 Qf2 Bg7 Bf4 Be5 Qh2 Bd6+
2k2n2/4n1NP/2BBb1P1/qKQ2QNr/Q1pRn3/2q2Nb1/3Rq1Q1/4rbq1 w - - 0 1 illegal: No proof kernel
qRq2r2/rB1r1kP1/1BN1b1n1/2b5/3q1N1B/bR2p3/P1QB1KQQ/2n4b w - - 0 1 illegal: No possible last move
kq1NK2n/2Q2RP1/5b1R/4p1b1/1Q1PqNbr/r1qr1n2/2B4R/N2b2BN w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 Kc7 g4 Kb7 d4 h5 f4 a4 b4 h3 f5 c4 g5 a3 d6 c3 b6 e3 g6 h4 b5 a2 g7 h2 d7 e6 f6 c2 f7 e2 Qe1 h3 Nd2 Ra4 Nb3 Qe8 d8N+ Ka8 Qb4 e1R+ Ne2 Rd1 Ng3 Nh6 Kf6 Nc6 Be3 c1B Bg1 Ra3 Bd3 Ne5 Bc2 Rd3 Rb1 a1Q Rb2 Bc5 f8N Nf3 Ng6 e5 Nf4 Bg4 Ra2 Qc3 Na1 Nf7 b7+ Ka7 b8R Rh4 Rb2 Nh8 Rb7+ Ka8 b6 Bf8 Rf7 Qb5 Nf5 Be7+ Ke6 Bf6 b7+ Ka7 Kd6 Qb6+ Kd7 Qbc7+ Ke8 Qb8 Bf2 Be3 Ng3 Bd2 Rd1 h1B Bg1 h2 Rc1 Bg2 Nh1 Bf1 Rcb1 Be2 Re1 Bd1 Re2 Bf5 Rg2 Bc1 Rg6 Bg4 Rh6 Be3 Ng2 Beg5 Nf4 Qa8 Nf2 h1Q b8Q+ Ka6 Qc7 Qb8 Bh2 Qhe1 Nh1 Qe4 Bg1 Bc8 Nb7 Ka7 Nd8+ Ka8 Bb1 Qee1 Rh2 Bg4 Bc2 Qe4
n2q2b1/QQ2RRp1/nr1b4/3N4/PB1QBPk1/n1QNr3/2q2qBK/4rr2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Kf7 h4 Kf6 c4 b5 c5 d5 h6 e5 h7 e4 h5 b3 h6 b2 c6 b4 c7 b3 Nf3 e3 Bd2 e2 Ne5 d3 Bb4 Kg5 f6 d4 f7 Nf6 Bg2 Ra6 Nc3 b1R Rf1 b2 Nd5 Be6 c8B Rb6 Bb7 Bd6 f8Q Nfd7 Qf7 Re8 h8Q Na6 h7 Kh4 f3 d2+ Kf2 e1Q+ Kg1 d3 Kh2 Qf2 Qe1 d1R Qc3 d2 Re1 Bc5 Nd3 Bd6+ f4 Rbc1 Rb1 Kg4 Qhg8 Re7 h8Q Re8 Re5 Rf1 Qgf8 d1Q Q8e7 Re1 Qh7 Qde2 Qe4 Qc2 Qed4 Rf1 Rf5 Rce1 Rd1 Re3 Re1 b1N Re2 Na3 Ba8 Ndb8 Qa7 Nc7 Qd7 Bg8 Rf7+ R8e6 Bc6 Na8 Qdb7 Re8 Re1 Na6 Re2 Rg3 Ree7 Rf3 Nc7 Re3 Be4 Ree1 Nd5 Re3 Rc7 Re5 Rce7 Ree1 Bg6 R5e2 Be4 Re3
n1B5/1r2K1p1/2b3q1/2nQb1P1/1b4RQ/1nQ3qN/NN1PknR1/N1B3rq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Qc2 Nh6 Qf5 Ng8 Qg4 hxg4 Kf2 Ke7 e4 Kd6 h4 Kc5 b4+ Kd4 e5 c5 h5 a5 d6 f5 h6 c4 h7 c3 d7 g3+ Kf3 c2 b6 a4 e6 g2 e7 a3 e8N a2 b5 Ra7 b7 Nf6 b6 Qc7 d8N Na6 b8Q Bb4 b7 Nd7 Rh2 Nb6 Bd3 Na8 Nh3 Bd7 Qc8 Nc5 b8Q Rb7 Nd6 Bc6+ Be4 g1Q Na3 Qf7 Rg2 Qg6 Ndc4 Qh1 Bd5 Kd3 Qd6 Qe1 Rb1 a1B Rg4 Rf8 h8Q Be5 Qh4 Rh8 Na5 Re8 Nb3 Rf8 Na1 Qh1+ Kf2 f3 Nc4 f4 Qde6 Rh8 Qf7 Rh5 Be6 Rh8 Qcc7 Re8 Bc8 Qh2+ Kf1 f2 Qe6 Qg3 Nb2+ Ke4 Ke2 f1N Qb3 Ne3 Qd7 Nd1 Qc3 Re6 Qd6 Nf2 Qdd4+ Kf5 Qd5 f3+ Ke3 Qh2 Rg2 Qg3 Qh8 Kg4 Qh7 Bc7+ Kd4 Be5+ Kc4 Nfd3 Qh6 f2 Qh7 f1Q Qh6 Ba4 Nc6 Qh1 Qh7 Nf2 Qh8 Ba3 Nb4 Bc6 Na2 Bb4 Qdd8 Ncd3 Qh4+ Kf3 Qa5 Ke2 Qd5 Qf3 Rg4 Nc5 Rg2 Bh2 Kd4 Qg3 Kc4 Rf6 Kd4 Rf4+ Ke5 Rg4+ Nf4+ Kf1 Qd6 Bg1 Rh2 Q3d3 Nh3 Bd7 Qd5 Qh5 Kd6 Qhg6+ Ke7 Ke2 Nd1 Qgf5 Ba3 c1N Ne3 N1b3 Nc4 Qg6 Rd1 Rg2 Bc1 Qf3 Nb2 Bc6+ Qd7 Nfd3 Rf1 Bd4 Rd1 Be5 Rg1 Rf2 Rg4 Qg3 Rf4 Rg2 Rg4 Rb5 Qd6 Nf2 Qd5 Rg1 Rg2 Rb7+
2B1q2Q/nQ4p1/8/n1b2P1R/1PNKRr2/2r3Br/NNb2QN1/kqr1n1b1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 Kd6 b4 Ke5 h4 c5 h5 a5 b6 c4 b7 a4 d6 a3 d4+ Kd5 f4 e5 h6 a2 h7 c3 d7 g3 Qd2 g2 Ne2 Kc4 d5 Kb3 d6 c2 Nec3 g1B+ Qf2 Qe8 d8N Ra3 d7 Ne7 Bh3 Nbc6 b8Q Na7 Na4 Nec6 Nb7 Na5 d8N Bf5 Nb2 Bg6 Bd2 c1R Ne6 Kc2+ Nc3 Bc5+ Ke2 e3 Be1 e4 Nd6 Rf8 h8Q Bf5 Rb1 a1R Na2 Rc3 Ndc4 Rf6 Qb5 Rh6 Bg4 Rh3 Qb7 Kb3 Qfh4 Kc2 Bg3 Rf1 Re1 Rc1 Qf6 Kb1 Qff8 Ka1 Qf6 Rh6 Rh5 Rf3 Qh4 Bh7 Qh2 Rf6 Qf2 Rf7 Bh4 Rh3 Bg3 Bf5 Nf8 Bh7 Bc8 Bg6 Ne6 Rf5 Kf1 e2+ Kg2 e3 Kf3 Bh7 Ke4 Rf7+ Kd5 Bc2 Ke5 Rd7 f5 Rd4 Qe7 Rg4 Nf4 Rgh4 Ng2 Rf4 Rd1 e1Q Rd4 e2 Re4 Qf1 Kd5 e1N Qf7 Bd1 Qb7 Qd3+ Rd4 Qb1 Re4 Be7 Ke5 Bc2 Kd4 Bc5+
1QN2Q1B/6p1/Qq2RbP1/nrP3bB/3NBq2/1q1n3n/R2K3r/Qr2n1k1 w - - 0 1 illegal: No possible last move
b2R1KBb/Q4P1n/2N2Q1B/nb5k/4RnN1/1q2R2p/2qr1rPN/R5rn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 h5 Kc4 d5+ Kc5 a5 c4 d3 f4 d2 b4 a4 b6 e5+ Kb5 e4 b7 d4 f6 Kg6 c5 e3 c6 d3 f7 h3 c7 e2 Qe1 d1Q Qd2 e1N Qe3 d2 Nc3 h4 f5+ Kh5 f6 h2 Ne4 h3 Bc4 a3 Qa7 a2 Nf3 Qd3 Nf2 Nh6 Ng4 Nc6 b8R Bb7 c8R Q3c2 Rd8 Bg7 Kc5 Nd3+ Kd6 Na5 Ke7 Nf4 f8Q Nf7 b5 Ng5 Re1 h1N b6 Ba6 b7 Bb5 Rd4 Rh7 Bg8 Bh8+ Qg7 Qb3 Ra4 Qdc2 Rd8 d1B Nfh2 Bf3 b8N Rh6 f7 Rd6 Rb4 Rd2 Re3 Bfc6 Qf6 Be4 Rb1 a1R Nc6 Rb8 Kf8 Rb6 Nd4 Ba8 Nc6 Rf2 Rbe4 Ra6 Nb8 Rd6 Nc6 Rd1 Bd2 Rg1 Rbe1 Rd1 Bc1 Rd4 Bd2 Rd5 Ra1 Rd7 Bc1 Rdd2 Rg3 Rd3 Re5 Ne2 Re7 Nf3 Bg5 Nf4 Re4 Rdd2 Bh6 Ng5 Rge3 Nh7+
1n1n3q/2NbRP1r/2RQ2Bn/2Q1rrB1/R1bN4/1Q2P1b1/q1rR2Kp/k7 w - - 0 1 illegal: No proof kernel
3N2b1/1Q2BPR1/R3q1Rq/6b1/2KN1r2/2nPpnQ1/RBB3n1/bnrr2k1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 f4 Kd6 b4 c5 g4 a5 f5 Ke5 d6 Kd4 d7 e5 d3 h5 g5 a4 f6 c4 b6 a3 b5 c3 g6 c2 b7 e3 b6 a2 g7 e4 Ba3 c1N+ Ke1 h3 Bd6 h2 Be7 h4 Qf3 h3 Qg2 e2 Kd2 e1N Ba3 Ne2 Bb2+ Nc3 Qf3 Qe7 d8B Ra4 Be2 Ng2 Na3 Qe6 Be7 Nc6 b8Q Ne5 Qg3 Nf3+ Kc2 Ke3 f7 Nb1 b7 Nf6 g8R Nd5 Kb3 Bh6 Nb5 Bg5 Na7 Rh5 Rg7 Ndc3+ Kc2 Rc4 Kb3 Rh4 Bd1 Rf4 Ne2 Bd7 Rg1 h1Q Qc8 h2 b8R Bc6 Rb6 Bd5 Qh3 Kf2 Nd4 e3 Ra6 Be4 Bc2 Bh7 Nac6 Bg8 Nd8 Rc7+ Kb4 Rc6 Qb7 Rc5 Re1 Rc8 Re2+ Kg1 Qg3 Nb5 Bb3 Rc1 Bc2 N5c3 Rd2 Na3 Rb1 a1B Rf2 Rd1 Rc1 Nab1 Kc5 Qd6+ Kc4 Qe6+ Kb4 Qa2 Ba4 Rf1 Rf6 Ne2 Rcc6 Nec3 Rfg6 Qe6 Ba3 Rc1 Ra2 Kf1 Rb6 Qg1 Kc5 h1R Bb2 Qh2 Ra6 Qh6 Bc2 Rg1 Qh2 Kf2 Kb4 Rge1 Qg3+ Kg1 Kc5 Red1 Kb4 Qf5 Kc4 Qe6+
3KnQBn/Rq1R1P2/N2b4/1k1rr1qp/1B4bR/5Qn1/4bnP1/QN2r2R w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 Kd3 Kd7 f4 e5 b4 h5 c4 a5 Qa4 h3 f6 h2 b6+ Nc6 b5 Ra6 c5 Bb7 f5 Nce7 c6+ Kd6 c7 Kc5 Ne2 Bc8 b7 Ng6 b8R Re6 Rg1 h1N b6 Ng3 b7 Re7 Qa2 a4 Bd2 a3 Nc1 Rd7 Qb2 a2 Rh1 Rhh7 Ba5 Nh8 Nb3+ Kc6 Nc5 Rhe7 Ra8 Re8 b8R e4+ Kc2 e3 Kb3 e2 Ka4 e1R Bc4 d3 Rb7 d4 Raa7 d2 Na6 d1N Bd5+ Kd6 Kb5 d3 Kb6 d2 Bc3 R8e5 Bb3 Nh6 Bg8 N6f7 Ba5 Kd5 Qa3 Kc4 Qb2 Rd3 Kc6 Be6 c8Q Nf2 Qa8 Qb8 Rd7 Qc8+ Kb6 d1B Qf3 Rdd5 Rh4+ R1e4 Bb4 Nd6 Nc3 Ne8 Rc1 Bd6 Nb1+ Bc2 Rch1 Bd3 f7 Bf1 f8Q a1Q f6 Bg4 f7 Re1 Nc3 Qc1 Nb1 Qg5 Qba3 Be2 Qa1 Qc5+ Kb7 Qb6+ Kc8 Kb5 Rc7 Qg7 Ra7 Qb7+ Kd8 Qg5+
qN6/rr2RP2/rQqr2bK/3P1k2/1bnQ2n1/1p1qBbR1/2R1BR1N/4B3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 b5 Kh5 c5 f4 h6 d4 b3 a4 b2 g4 c4 d6 h3 g5 b4 f6 Ke6 d7 c3 d5+ Kf5 a5 c2 f7 b3 a6 h2 g6 e4 g7 e3 a7 e2 Be3 c1Q Qd4 e1R Ne2 Rh7 Ra2 Qc6 Nd2 b1Q Rc2 Bb4 f8B Qd1 Nf3 Qd3 Rg1 h1R+ Nh2 Ra1 Rg2 Ra6 Rf2 Rg1 Be7 Rg6 Bh4 Rd6 Bg3 Qf8 d8Q Nd7 Q8b6 Ne5 Bh4 Rb8 a8R Nc4 Ra7 Rb7 Bg3 Be6 Bh4 Qa8 Bg3 Ne7 g8R Ng6 Bh4 Nge5 Rg3 Rb8 Re7 Ng4 Qb2 Rb7 Nd4+ Ke4 Kg6 h5 f5 Rf7 f6 Rh7 Bhg5 h4 Be2 h3 Bd2 Rf7 Be1 Rba7 Be3 Rh7 Re8 Rhb7 f7 Ke5+ Kh5 Ke4 Re7 Ke5 Nf1 h2 Kg5 h1B Nh2 Bf3 Qc3 Qc7 Nc6+ Ke4 Kh5 Kf5 Nb8 Qc6 Qd2 Kf6 Qd1 Bf5 Qd2 Bh7 Qc3+ Kf5 Qcd4 Nf6+ Kh6 Bg6 Re6 Na3 Re4 Nc4 Re7 Ng4+
1Rq1q3/3rPQ1B/R2Q3q/N3bNrr/2r2RK1/nb3P2/N1k1n1p1/Bn5N w - - 0 1 illegal: No possible last move, all moves rejected
1K6/bB1qPR2/1BQ1b3/6np/Rr2r1Q1/qk1n1QPR/2N1b2r/1q1NQr2 w - - 0 1 illegal: No possible last move
Kq1Q3n/b2RP3/1Rn3BQ/p1n2qn1/1Nr3rB/Q2r4/1B1qP1k1/1N2B2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kd3 a5 Kc4 h5 b4 f4 g4 f3 g5 Kf5 Kd5 Kg4 c4 Kg3 g6 f2 b6 h3 b7 h4 e6 h2 c5 h3 b5 d3 g7 d2 b6 Rh4 c6 Bc5 e7 Nh6 g8Q+ Rg4 c7 Nf7 Qf8 Nh8 Bb2 Nc6 b8B Bb7 Bg2 f1Q c8Q+ d6 Qc2 d1R+ Qd3+ Be3 Be4 Qf5+ Be5+ Kf2 Nf3 Kg2 Qh6 Qc7 Rf1 h1N Qd8 h2 Re1 Bd4 Qa3 Rd3 Rd1 Ng3 Rd2 h1N Ne1+ Kf2 Ba7 Rc8 Nc2 Qb8 Nb4 Kg1 Raa2 Nf2 Rab2 Nh3 Rb3 Ba8 b7 Ng5 Bc5 Qf8 Bh7 Kg2 Bg6 N3e4 Bf6 Bf2+ Bcd4 Nc5 Rbb2 Nge4 Bh4 Ng5 Na2 Be3 Rb6 Qf4 Nb4 Qf5+ Kc4 d5+ Kb5 Bg1 Bb2 d4 Be1 Rb3 Bh4 d3 Rd1 d2 Be1 Qd6 b8B Rd3 Bc7 Qh2 Bcg3 Bb7 Bh4 Qb8 Rc1 d1Q Rc4 Be3 Rd4 Qd2 Rd7 Ba8 Rbb7 Na4+ Ka6 Ba7 Rb5 Nd4 Rbb7 Rc4 Rb6 Be4 Bh5 Nc6 Bg6 Qbf4 Kb7 Nc5+ Ka8 Kf1 Qc7 Bh1 Qb8 Kg2 Qd8 Qb8+
1Bk1r3/QRN1P2n/n1qpn1Q1/NRqB4/2Pq3b/Q1q2QB1/1Kbb4/4r3 w - - 0 1 illegal: No possible last move, all moves rejected
1QN5/1n2p3/1Kbb3R/5bBP/n2r1P1N/2NBb1Bn/2r2r2/N1Q1Rqqk w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 a5 b4 g5 c4 d5 f6 d3 f7 g3 b6 g2 b5 d4 b7 d2 h5 d3 b6 a4 Qb3 d1B Qc3 d2 Qf6 g4 Rh3 g3 Qc3 a3 Qf6 a2 Qc3 Bh6 f8N Be3+ Kb5 Bf5 c5 Nh6 c6 Nf7 c7 Nd7 c8N Nc5 b8B Ba4+ Kc4 d1R b7 Bc6 Be2 Na4 Ne6 Rf8 Nf3 g1Q Nh4 g2 Rh1 Nd6+ Kb4 Rd2 Nd4 Rc2 Nb3 Qf1 Qc5 g1N Nc3+ Kf4 f3 Kg3 Bd3 Nh3 Bc7 Qe8 b8Q Qg6 Rb1 Kf2 Na1 Nb7 Kc4 Rd8 Rb6 Qgg1 Kb4 Rd4+ Qc4 Bb5 Rh6 Bc6 Bd2 Ra5 Bf4 Re5 Bg5 Kg3 Be1+ Rf2 f4 Rb5+ Ka3 Rb2 Qc5 Rc2 Qc4 Bd5 Kb4 Bg2 Kb5 Bd5 Nb3 a1B Qc6 Bb2 Na1 Ba3 Ka6 Bd6 Qc5 Qfg2 Qa3 Bc6 Qc1 Q1h2 Rf1 Qhg1 Ka7 Kh2 Ka6 Rfe2 Bg3+ Kh1 Re1 Rf2 Ka7 Q2f1 Ka6 Nac5+ Kb6 Na4+
4n2B/2nP1QN1/2r5/2QRN3/Brr4n/R1nqpK1b/3PR2b/1k2qQRq w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 g4 Kg6 b4 c5 f4 e5 b6 h5 d6 a5 g5 Kf5 b7 h3 g6 h4 g7 c4 b5 e3 b6 Ke4 f5 c3 f6 a4 f7 a3 Bb2 h2 Qb3 a2 Qa3 c2 Nf3 c1R Bg2 h3 Qa4+ Rc4 Qa7 Rh4 Qa5 Na6 b8Q Nc7 b7 Ra6 Bc3 Nf6 g8R Rac6 Rg5 Nfe8 Rg1 h1Q Na3 h2 Qba7 Bh3 b8R Bh6 Rae1 a1Q f8Q Qc1 Rh5 Bf4 Rb3 Bg3 Nc2 Rg4 Kf1 Kd3 Q5c5 e4 Ncd4 Rf4 Ne6 Kc2 Ra3 Kb1 Ke2 Rh4 Ng7 Bf4 Kf1 e2+ Kf2 Qd1 Ne5 e3+ Kf3 Qd7 Ref1 Qe1 Bd4 Qf5 d7 Qd3 Rf2 Rb4 Qb8 Bg3 Ba1 Rc4 Qf7 Rb5 Ng4 Na6 Qfe7 Qc1 Qf7 Rbb4 Qbf4 Rg6 Qfg5 Nac7 Nf5 Bd6 Be5 e1N+ Kg3 Rh6 Bb7 Ng2 Bc6 Qe1 Qf4 Rg6 Bh8 Re6 Rf1 Qg1 Ba4 Rf6 Ng7 h1N+ Kf3 Rh6 Re2 Nf2 Kg3 Qh1 Rd5 Be5 Rg1 Ne4+ Kf3 Rg6 Qg3 Nc3 Qf2 Bh2 Qf1 Rc6 Ne5 Nh4#
r2bR1qQ/q2P1P1R/N3b1RQ/1brNR2n/K2n1rrk/B3B3/p1B5/n7 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 Kd2 Kg6 Kc2 h5 Kb3 c5 g4 a5 f4 e5 b6 e3 g5 e2 d6 e1R b7 e4 d5 h3 d7 e3 d6 h4 Nf3 Kh5 g6 h2 f5 h3 g7 c4+ Ka4 c3 b4 c2 b5 e2 b6 Nf6 g8R Be7 Ba3 c1R Nfd2 Nc6 b8Q Kh4 b7 Rc5 Qc1 Nh5 f6 Nd4 Rg6 Qg8 d8B Be6 Bb6 Bd8 d7 Rd1 f7 e1N Bc4 Nec2 Ne4 Rg1 Bd3 Rg4 Qh6 Rf4 Ra2 Na1 Re2 Rh7 Nbc3 Rg7 Rhe1 h1Q Nd5 h2 Bc2 Qg2 Rh1 Qg1 Qc8 Qe3 b8R Qf2 Ng3 Qg1 Re5 Qf2 Ne4 Qg1 Rf6 Rgg4 Rg6 Qf2 Nef6 Qe3 Nc7 Qf2 Na6 Qe3 Rg1 h1B Nd5 Bg2 Rg7 Bf1 Rh7 Be2 Rg5 Bc4 Re1 Qg1 Ree5 Bd3 Rg6 Bf1 Bc1 Bb5+ Ka3 Rc4 Be3 Bc7 Ba7 a4 Rgg5 Qg7 Bc5 Ndb3 Qh8 Qg8 Re8 Bd8 Bc1 Rc3 Bf8 Qa7 Be3 Nd4+ Kb4 a3 Rg6 a2 Bc5 Bc4 Ka4 Bf1 Bb4 Rc5 Ba3 Bb5+
3Rq2n/QRQp2kb/2qQbr1n/R4rq1/1b6/B1N1N2P/2K2P2/r1r1Q2B w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 c4 e5 b4 a5 b6 g5 c5 e4 c6 g3 b7 g4 c7 d3 b5 g2 f6 a4 b6 e3+ Kc3 a3 h3 g3 Qf3 e2 Nd2 e1R Rh2 a2 Qc6 Qe8 Kb3 Rh6 Ba3 Bb4 Qf3 Rc1 Qe2 Nc6 b8R Ba6 c8Q Nd8 Nc4 d2 Ne3 Bd3 b7 Ra5 Rh1 Bh7 Qe1 Rf5 Ne2 g1Q Qc7 g2 Nc3 d1B+ Kb2 Kg6 f7 Bg4 f8Q Nf7 Qfd6+ Kg7 Rd8 Rhf6 b8Q Ngh6 Qba7 Nh8 Ba6 Qf1 Bb7 Qa6 Rf1 g1Q Bh1 Qc6 Kb3 Rd1 Kc2 Qg3 Rb1 a1R Rg1 Qf4 Rb3 Qg5 Rg2 Bc5 Rb7 Bb4 Rg3 Bh5 Rg4 Bf7 Rd4 Be6 Rd5 Rdb1 Ra5 Rc1+
1N4n1/1RP2N2/1B4B1/1b4rQ/1b1qbq1n/N2Pp1r1/kbB3RQ/N1q2n1K w - - 0 1 illegal: No proof kernel
1q2k1N1/1BPrN2Q/q5b1/n6B/1b1QR3/2P3rQ/1pn1rnn1/3RBQKq w - - 0 1 illegal: No possible last move
5N2/n1P3BR/KN1rb2b/2nQB1r1/Qq4B1/2pPnq2/R1r1Rn2/bk2B3 w - - 0 1 illegal: No proof kernel
1qk1r1Q1/1RP5/2N2bn1/1qRQBRp1/bQN1P3/nn2r1K1/8/3qnBbR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 h4 a5 e4 d5 c4 Kd7 b4 g5 b6 a4 c5 a3 b7 f3 h6 a2 b5 f4 h5 d3 h7 d2 b6 d4 h6 d3 Na3 Nc6 b8R Na7 b7 Nb5 Be2 Ne7 Qf1 d1Q Nc2 d2 Ne3 Ra3 Bd3 Ng6 c6+ Kc7 Bb2 Bc5 Qe2 Re8 h8Q Bd7 Rc1 a1B h7 Bb6 Bg7 Bf6 Qg8 Qa4 h8Q d1Q Rc5 Qc4 Ra8 Qb8 Qd5 Rc3 Qb2 Na3 Qb1 Qb5 Bf1 Ba7 Nc4 Re3 Ne2 Bb6 Kg1 f2+ Kg2 f3+ Kg3 Ba7 Nd4 Bb6 Bh3 Ba7 Qhg8 f1N+ Kf2 Kd8 Qb4 Nd2 Bf1 Nb3 Bh8 Bb6 Ra5 Kc7 Kg3 f2+ Kg2 Nd2 Bg7 Nf3 Kg3 Ne1+ Kh2 Qa8 b8R Ba7 Rb7+ Kc8 c7 Qb8 Bf8 Bc6 Bd6 Bd7 Be5 Bb6 Be2 Ba7 Nc6 f1N+ Kg1 Nd2 Kf2 Nb3 Bf1 Qb6 Nd8 Ba4 Nc6 Re2+ Kg3 Qb5 Kg4 Bb6 Kh3 Ba7 Kg3 Re3+ Kf2 Qg4 Bb2 Nc1 Qd6 Nb3 Rd5 Qc5 Rf5 Qd1 Be5 Re2+ Kg3 Qb6 Rd5 Qb5 Qdc5 Bb6 Qd6 Bd4 Rc5 Bg1 Qdd5 Re3+
3B4/1Qp3KN/QN1RRn1P/r2n4/2q3Nn/R3P2b/1N3nr1/qqb1kB1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 b4 Ke5 d4+ Ke4 b6 g5 b7 a5 h5 f5 h6 f3 Kg3 a4 b5 f2 d6 a3 d7 a2 b6 Ne7 d5 Rg8 d6 Nd5 Nh3 Ra5 Nd2+ Ke3 Qa4 Qf6 d8N Qe6 d7 Ba3 Nc6 f4+ Kh2 f3 Kg3 Qe4 d8R Nd7 b8N Qc4 b7 N7f6 Nd7 Rg6 b8Q Rg8 Rb1 a1Q Rb6 Rg6 Qb7 Qb1 Bg2 f1Q Nce5 f2 Re6 Qg1 Qab5 f1R Q5a6 Qa1 Bb2 Qb1 Ba1 Bc1 Nb6 Rd1 Rdd6 Re1 Ne4 Rd1 Nef2 Kd2 e3 Ke1 Rh2 Qh1 Bb2 Qa1 Bf1 Qhe4 Nf4 Qeb1 Ned7 Rg8 Nf8 Rg6 Kg2 g3 Kh3 g4+ Kh4 g2 Nh7 g3 Ng4 g1N Rh1 g2 Nd3+ Kd2 Ba3 Nh3 Nb2 g1N Rh2+ Ke1 Rf2 Ne8 Kh5 Nf3 Rd2 Rg7 Rd3 Nh4 Bc5 Rg8 Ra3 Nf2 Bd4 Rg7 Bf6 Rg6 Bd8 Bd7 Ngf6 Rg2 Ng4 Nef6+ Kg5 Nf5 Kg6 Nh4+ Kg7 N6e4 Rg6 Nef6 Ne5 Bh3 Ng4 N6e4 Rge6 Nef6 Bd3 Kd2 Be2 Rh1 Bf1 Ke1
rbr1kBQQ/2p2N1n/b1PP1R2/rq1B2BK/6Qn/1R2n3/BN5r/1q4q1 w - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 e4 dxe4 f4 exf3 hxg5 Bf5 Bd3 Be6 Bf1 Bc8 Kf2 e5 Kg3 a5 Kh4 f5 g4 h5 c4 f2 d4 a4 b4 a3 b6 f4 c5 e4 b5 f3 b7 a2 d5 e3 c6 e2 b6 e1N Nh3 Qd7 g6 Be7+ g5 Ra6 g7 Qf5 Bc4 f1Q Nc3 f2 Na4 Nd7 b8B Qg1 b7 f1Q Ba7 Qb1 b8Q Ne5 Nb2 Bc5 g6 Nc2 Bg5 Ra5 Qg4 Nf6 g8B Ne3 g7 Nh7 d6 Qfd3 Bcd5 Qb5 Bh6 Bb6 Ng5 Bc5 Nf7 Nf3+ Kh3 h4 Rh2 Nf8 Rf2 Nh7 Bb6 Ra8 Ba5 Ba7 Bd2 Ne1 Rf6 Nf3 Qb6 Bb8 Qd4 Ba6 Bg5 Qg6 Rb1 a1R Bc1 Ra5 Bh6 Nc4 Bcg5 Qd3 Ra1 Qe4 Ra3 Qeb1 Rb3 Ne3 Qgf4 Ng2 Kg4 h3 Kh5 h2 Qg4 h1R+ Qh4 Bb7 Rf5 Qb4 Rd3 Qh2 Ba2 Qc5 Ne5 Ne3 Qh3 Nh4 Qhg4 Qhg1 Bgd5 Qc4 Rb3 Ba6 Nf7 Rh2 Rf2 Rf8 g8Q Qb5 Qdg7 Qb6 Rf6 Qb5 Ne5 Kd8 Q7h8 Re8 Bf8 Re7 Qb4 Rd7 Qd4 Ke8 Nf7 Rd8 Qg4 Rc8
N1q4r/b1pP1r1n/4q3/1R1K2R1/2QBn1R1/1RQqPB1b/2rnN1n1/2B2k2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 Kg4 b4 Kg3 b6 Kf2 g4 a5 b7 h5 g5 f5+ Ke5 a4 e3 f3 g6 a3 b5 a2 b6 f4 g7 h3 d6 h2 d5 h4 d7 h3 d6 Nf6 g8R Na6 b8B Nc5 b7 Nh7 Bb2 Ne4 Kd5 Qe8 d8Q Qe6+ Kd4 Ra5 Rg6 Rf5 Qd3 Rf7 Rg4 Ke1 Rg5 f2 Qf6 f3 Bg2 f1N Bc1 f2 Na3 Nfd2 Ba7 f1Q Rb1 a1N b8R Qe2 Bf3 Kf1 Qc3 Qb5 Nc4 Nc2+ Kd3 Qa6 Qf4 Ne1+ Kd4 Ng2 R1b3 Bd7 R8b4 Qc8 Nb6 Be7 Na8 Bf6+ Kd3 Bd4 Rbb5 Bc5 Bb8 Ba7 Ne2+ Kf2 Rg1 h1Q Qg4 h2 Qh4+ Ng3 Qhc4 Nge4 Rd1 Qf1 Re1 Bc6 d7 h1R Rd1 Rh2 Re1 Nc5+ Kd4 Be4 Rd1 Bf5 Re1 Bh3 Rg4 Qf6+ Kd5 Nce4 Rd1 Nb1 Rd4 Nbd2 Rg5 Qfa6 Ng1 Qd3 Ne2 Bc5 Ba7 Kf1 Bb6 Qa2 Ba5 Ba7 Bb6 Nef6+ Ke5 Qaa6 Rdg4 Nfe4 Bd4 Ne1 Nf4 Nb1 Bh1 Rc2 Kd5 Nbd2 Bf3 Ng2 Ne2 Qe6+
QQ1R3B/1PNq1bn1/4Q3/KBRn3N/2RR2q1/P1rn3k/p1q4r/bb2b3 w - - 0 1 illegal: No proof kernel
2r5/nP1bNQ2/nkbb3R/q3npN1/2r1brQP/NK3R2/B6q/4B1NB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 h4 Kd7 e4 Kc7 b4 a5 c4 g5 Kc2 f5 c5 g4 c6 g3 e5 f3 h6 a4 h7 f2 e6 g2 e7 d3+ Kb2 d2 e8B a3+ Kb3 d4 Nh3 g1N Qg4 d3 Bg2 f1R Bf7 a2 Na3 Kb6 c7 Nf3 Ng1 Bd6 Rh3 Ne5 Bh1 Ne7 Rf3 Bd7 c8Q Rg8 h8N Na6 Qcc4 Qb8 Bd5 Nc8 Nf7 Rh8 Ng5 Na7 Bb2 Rc1 Bc3 Rc8 Bg8 Rc2 Qf7 d1B Be1 d2 Rb1 a1Q Rc1 Kb7 b6 R2c4+ Rc2 Be2 b5 Bd3 Rc3 Rf4 Rc1 Be4 Rc6 Be7 Rh6 Bd6 Bg3 Rc4 Be1 Kc8 b7+ Kc7 b6+ Kc6 Nb5 Qa5 Na3 Qc7 b8N+ Kb7 Kb2 d1B Nc6 Rc8 Ne7 B1a4 Ka2 Bac6 Kb2 Nb4 Kb3 Ka6 b7 Kb6 Qf6 Na6 Be6 Rd4 Qf7 Rb4+ Kc3 Qb8 Ba2 Rc4+ Kb3 Ng6 Rh3 Be5 Qe2 Rg4 Rc3 Qd6 N1h3 Qd2 Qg2 Rf4 Rf3 Bd6 Qg4 Qh2 Ng1 Ne5
2b4Q/1P3kq1/1Q1b2rB/3PrB2/2pR1R2/2RRNr2/3nqNqr/K2bnQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 c5 e4 f5 d4 h5 Kd2 a5 Kc2 f3 Kb2 h3 g4 h2 b6 f2 b7 a4 g5 h4 e5 f4 b5 c4 e6 f3 b6 h3 e7 Nc6 b8Q Rh5 d6 Ra6 g6 Ne5 g7 Kf7 e8R Qg5 d7 Bd6 d8R Nf6 Ra3 Nd3+ Ka1 Qg2 Bh6 Ne1 Rc3 a3 Bd3 f1R Nd2 f2 Re4 a2 Rf4 Re5 Bf5 Ne4 b7 Rb6 Qa7 Ra6 Ndf3 Nd2 g8Q+ Ke7 Qh8 Kf7 Nh4 Rb6 Ne2 Ra6 Rg1 h1B Nc1 h2 Nd3 Rc6 d5 Rb6 Rg8 Ra6 Qb1 Rb6 Rg3 Ra6 Kb2 a1Q+ Kc1 Nef3+ Ne1 Be7 Bh3+ Rf5 Ng6 Ne4 Rc2 Qg7 Nh4 Rg6 Rc3 Bd6 Bg4 Qh3 Kb2 Bg2 Nd3 h1R Qb6 Rh2 Ka1 Bh1 Ng2 Qh5 Bh3 Re1 Rh4 Ned2 Rf1 Ree5 Rd4 Rf4 Bf5 Qh3 Re1 f1Q Ree4 Qf2 Qg1 Ne1 Qf1 Qf3 Nf2 Qfh5 Ne3 Bf3 Neg4 Bd1 Rgd3 Qg2 Ne3 Qe2 Qg8+ Kf6 Qh8 Rf3 Rf4 Kf7
1b2RKBk/RPn4N/2QP4/q1N2Qr1/1B3rb1/1q2B3/1rN1Bp2/1n1b2qq w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 Ke5 f5 g4 Kf7 e4 Kg7 b4 h3 d4 c4 b6 h4 b5 h2 g5 f3 g6 c3 Ra4 h3 b7 c2 Na3 f4 Qd3 Na6 b8B Qb6 Bd6 Rb8 Bc5 Qb7 b6 Ne7 Kd6 Rg8 e5 Kh8 e6 Bh6 Bd2 c1Q Nc2 Qa1 Ra2 a4 Qb5 a3 g7+ Kh7 Bc4 Qd1 Ra1 a2 Qc6 Bd7 Ne2 Bg5 Re1 h1B Nc1 h2 Nb3 Bf6 Re5 Qg1 Be3 Bg2 Ba3 h1Q Nc5 Bf1 Re4 Be2 Bb5 Bc8 Bd3 Bd1 Be2 f2 Re5 f3 Re4 Bh4 Re5 f1R Re4 Rf8 g8B+ Kh8 Re5 f2 Re4 Ng6 e7 Qgg2 e8N Rg1 Nf6 Ne5 Nh7 Nf3 Re6 Bd7 Re8 Bg3+ Ke7 Bc7 d6 Rf4 d5 Be6 d7 Nd2 d8Q Nb1 d6 Qgh2 Nd7 Rg5 Qc8 Bg4 Nc5 Q2g1 Q6d7 Qbd5 Qf5 Rb7 Qa8 Bb8+ Kf8 Nc7 Qa4 Ra7 b7 Qb3 Qc6 Raa4 Ne1 Rad4 Bb4 Rd2 Re5 Rc2 Re8 Rb2 Nc2 Nd2 Rb1 a1Q Rc1 Qa7 Ra1 Nb1 Ra6 Qb6 Ra7 Qa5
2N4Q/RPp1qkP1/1K5B/6b1/4B2q/nb1B4/Qq2NnrB/rQR2nnr w - - 0 1 illegal: Other
5q2/npBnQ1nP/1R2NbQ1/1B1b4/4Q3/q1rR1nP1/1Q1b3r/1Krk2NR w - - 0 1 illegal: No proof kernel
1r1bR2n/PqNr2p1/b1rq1P2/2R4B/2n3Q1/R3QN1q/1q4NR/3kbKB1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 d4 Kd6 a4 e5 h4 b5 h5 c5 f6 g3 a5 e4 f7 b3 a6 g2 h6 e3 a7 b4 f5 c4 h7 c3 f6 c2 Bb2 c1R Ke2 Be7 f8R Nc6 Ra4 Ne5 Ra3 Rb8 Nh3 g1Q Nd2 Nc4 Nf3 Qg3 Nf4 Ba6 Re8 Nh6 Rh5 Qh3 Ng2 Nf7 Qe1 Rg8 h8R Qb6 Qh4 Bd8 Qg4 Rc3 Ke1 e2 Bc1 b2 Be3 b3 Bg1 b1Q+ Kf2 Kc7 d6+ Kc6 d7 b2 Rc5+ Kd6 d5 e1B+ Ke2 Qa1 Rh6 b1Q Rh4 Nh8 Rh6 Be7 d8N Rd3 Ne6 Bd8 Nc7 Qab2+ Nd2 Qb7 Rh4 Q2b4 Nf3 Rf8 Rh5 Rf7 Rh7 Rd7 Rh5 Rc3 Rh7 Bd2 Kf2 Qc1 Be2 Be1+ Kf1 Qf4 Rh4 Qb2 Rh5 Qhg3 Rh2 Qh3 Bd3 Qd4 Bg6 Qe5 Bh5 Qe7 Nd4 Ke5 d6+ Qd5 Qd1 Ke4 Qg4+ Kd3 Nf3 Kc2 Ra1 Qf8 Ra3 Rf7 d7 Qfd6 Rb3 Kd1 Ra3 Be7 d8Q Qdb7 Qdd7 Bd8 Qde6 Rd7 Qee4 Rb3 Qe5 Rb6 Qe3 Rc6
1Q6/p1RKB1bk/1nB1N2q/2qQ1r1b/2r5/P1Pn1Q2/1b3BNB/3nRb1r w - - 0 1 legal: proof: g4 e5 f4 exf4 g5 c5 g6 d5 Nh3 d4 Nf2 d3 cxd3 c4 Nh3 c3 bxc3 hxg6 Ng1 g5 Ba3 g4 Bb2 Qg5 Bc1 Qd8 Kf2 f5 e4 Kf7 h4 Kg6 a3 b5 h5+ Kh6 d4 g5 d5 f3 Ke3 f2 Kd4 g3 Ke5 b4 d4 f4 d6 f3 d5 b3 d7 b2 Ke6 g2 d6 Nf6 e5 Bg7 Ne2 g1B Nd4 Kh7 h6 g4 Bg2 f1N Nd2 b1R Nc4 f2 Qf3 g3 Bf4 Qf8 Ne3 Rb5 Re1 Nd5 Rh3 Ba6 d8Q Nb4 d7 Nd3 Qa5 Bb7 d8B Nd7 Be7 Nb6 Rh4 Rb4 Qad5 Rc4 Bh1 g2 Bh2 Rac8 Rf4 Bc6 Rf7 Be8 Kd6 R8c5 e6 Kg6 h7 Kh6 Rf4 Bh5 Rf7 Kg6 Qde4+ Rf5 Qd5 Rg8 h8B Kh7 Be5 Bh2 Bg3 g1Q Ng2 Ne3 Be5 Na4 Kd7 f1B Bg3 Nd1 Bf2 Ne3 Bd8 Be5 e7 Bf4 e8Q Nd1 Ne6 Bc1 Be7 Bb2 Qea8 Qh2 Qb8 Qf4 Bd6 Qh6 Bh2 Qc5 Re7 Kg6 Rf7 Be5 Bf6 Rh8 Be7 Bg7 Rf8 Kh7 Rc8 Rhf8 Rc6 R8f6 Rc7 Rg6 Nh4 Rg1 Ng2 Nb6+ Kd8 Qce3 Qd7 Nc5 Qg4 Bc1 Nh4 Bd4 Bc6 Nd3 Qd5 Bg7 Ng2 Rh1 Qh3 Bb2 Qhf3 Na8 Kc8 Qc5 Kd7 Nb6+
rb1N3r/pbr3P1/3nQ2b/R3B2k/RNq1BQ2/qB6/2nr1BP1/3qQ1K1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 c4 Kf7 f4 Kg6 Kf2 h5 b4 d5 b6 e5 b7 h4 b5 d3 c5 d4 f5+ Kg7 f6+ Kg6 f7 h3 b6 d2 c6 h2 c7 d3 Na3 Na6 b8B Qd6 b7 Nb4 Nf3 Nf6 Qe1 d1R Be3 d2 Bc4 Bh6 f8Q Ne8 Nd4 Nc2 Bb3 Kh5 g6 Qa6 g7 Nd6 Qf6 Qc4 Rg1 h1Q Qe6 Qh3 Nc6 Rc1 Bc5 d1R Nd8 Rd5 Rh1 e3+ Kg1 e2 Bf2 e4 Rh2 e3 Ra2 Bd7 c8B Rd2 Bc7 Bc6 b8Q Bb7 Ra1 Nb5 Be5 Nd6 Bd7 Re8 Bc6 Rh8 Bh4 Qg3 Be4 Qf3 Bf2+ Qh3 Qf1 e1Q Ra2 Qd1 Qe1 e2 Qc7 Kg5 Qcf7 Qf3 Rh4 Qfc3 Qf3 Q3d3 Rg4+ Kh5 Qf4 Qg3 Nb5 Qe3 Nc7 Qec5 Nd5 Qa3 Qf1 e1B Nb4 Qb2 Ra5 Qa3 Bc5 Bg3 Bf2 Na1 Qe1 Rc3 Rg6 Nc2 Rf6 Qd5 Rf7 Rc7 Rd7 Qc4 Ra4 Nf5 Rd5 Nd6 Rda5 Nf5 Bc3 Rf7 Qe3 Bb8 Be5 Rc7 Qf4 Nd6
q5N1/r1r5/3r1NkN/NB2Q1B1/2PQ3K/2bn2nR/P1br1bp1/2rr2RB w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 f4 Kf7 Kf2 d5 Kg3 b5 h4 e5 c4 g5 f6 d4 f5 e4 c6 d3 h5 e3 h6 b3 h7 d2 c7 b2 Be2 b4 Rh2 b3 Rh6 Nd7 Qc2 d1R Rh1 Bg7 Nh3 Nc5 Qd3 Rd2 Nf2 Ra7 Rh3 Ne7 Bf3 e2 Qd4 e1B Bh1 Nd3 Qe5 Bd7 c8B Ba4 Ba6 Qa8 Bb5 Rc8 h8Q Rcc7 Qd8 Bh8 Qdd4 Bg7 Na3 b1R Nc2 b2 Nb4 Bc2 Nc6 Nd5 Na5 Nc3 Kh2 Ne4 Kg2 Kf8 f7 g3 Kf3 g2 Ng4 g1R Nh6 Bg3 Kg4 Rgd1 Kh5 Bf6 Kg4 Kg7 f8N Bf2 Ng6 Ng3 Ne7 Kh7 Neg8 Bh8 f6 Kg6 f7 Bf6 Rh2 Bh8 Kh3 g4+ Kh4 Bg7 Rh3 Bh8 Qdf4 Bg7 Qe1 Bc3 Qee5 Re2 Bd2 Rbc1 Qfd4 b1R Bg5 Rdd2 Bg2 Rcd1 Bh1 Rbc1 Rb1 Re4 Ra1 Rf4 Rb1 Rf6 f8N+ Kg7 Nh7 Kg6 Ra1 Rd6 Nhf6 Nh5+ Qg3 Re1 Qe5 Rb1 Qd4 Rg1 Bd5 Rbf1 Re1 Rh1 Re7 Rc1 Bg2 Rhd1 Re1 Bg1 Qh2 g3 Bh1 g2 Qhe5 Ng3 Rf1 Be3 Rg1 Bf2
knq5/bnB1R1QR/r1r3b1/B1n3Q1/pbNb2KQ/1Q2b3/NP3Pb1/1B6 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 g4 a5 d4 c5 d6 h5 g5 e5 g6 c4 d5 c3 g7 a4 b6 c2 b7 e3 Kf3 e2 Nd2 e1B Nb1 e4+ Kf4 h3 Nd2 h2 Qf3 e3 Ba6 e2 Qb3 h4 Bd3 h3 Ngf3 Nh6 g8Q Nf7 Ba6 Rh6 Nf1 Bc3 Kg4 e1B Bd2 c1B Bd3 Ra6 Ng1 Bd4 Ba5 Bce3 Ne2 Bb4 Nd2 Be7 Rhe1 h1N Nc1 h2 Nc4 Ng3 Na2 h1B Qg7 Ne4 Bb1 Bg2 Rh1 Rf6 Rh8 Qc7 Rh7 Kd8+ d7 Bec5 Qc3 Ba7 Qb3 Nc6 b8Q Nfd6 Qb5 Nb8 Qc5 Nb7 Qb5 Ba3 Q5b4 Nec5 Qd2 Bh6 Qdg5 Bb4 Qh4 Bhe3 Qhg5 Qb6 Qh4 Kc7 d6+ Kc6 Qhg5 Re6 d8Q Qc7 d7 Rg6 Qde7 Re6 d8B Rg6+ Kh5 Bf5 Qh4 Bc2 Qeg5 Qc8 Bdc7 Re6 Kg4 Bg6 Q5e7 Nd8 Qeg5 Kb7 Bc2 Ka8 Re1 Ndb7 Bb1 Bf4 Re4 Bfe3 Re5 Rec6+ Re6 Qg8 Re7 Qc8+
2R1N3/r1R5/Q1b2q2/N1rPNn2/1p3n1n/rrrQ2bR/4PrkB/KB2R3 w - - 0 1 illegal: No possible last move, all moves rejected
4b1k1/bQ1b1n1N/1n3Rb1/Pqr2BQ1/1NQ3rp/1b1B4/1nQ2BP1/bR2K3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 c5 e4 h5 a4 b5 a5 f5 g6 f3 d6 c4 g7 Kf7 e5 h4 d5 c3 d7 f4 d6 b3 Nh3 c2 Na3 f2+ Kd2 b2 Ke2 b1N Rg1 b4 Bd2 c1B Nc4 f3+ Ke3 b3 Be2 f1B Kf2 b2 Bh6 Be3+ Ke1 Qg5 d8Q Na3 d7 b1B Qc2 Ba7 Nb6 Nc4 Bd3 Nb2 Nd5 Bd6 Bf5 Bc4 Nb4 Bb3 Rf1 Bf8 Qdc7 f2+ Ke2 Rh7 d8Q+ Bd7 Qb7 Bfc5 Qdc8 Bd4 Bd3 Qf5 Be3 Nh6 g8B+ Kg7 e6 Qb5 e7 Nf7 e8Q Rh5 Qe7 Rc5 Ng5 Be8 Nh7 Nd7 Qc4 Nb6 Qg5+ Kh8 Qcc6 B1c2 Rfb1 f1B+ Ke1 Be2 Qcg6 Bg4 Bf2 Bgd7 Qge4 Rac8 Qe2 R8c6 Bf5 Be4 Qec2 Rg6 Ra3 Ba2 Rf3 Bb3 Nf8 Bf6 Bh7 Rg7 Bhg6 Kg8 Nh7 Be5 Bg4 Bd4 Rf6 Be5 B6f5 Rg6 Be2 Bd4 Qgd2 Rg4 Bd3 Be5 Be6 Bg6 Qg5 N2a4 Bef5 Ba1 Qcc1 Nb2 Qcd2 Rf4 Qdc2 Rg4
kN1N4/B1Q2Rb1/1b4q1/p2NrQP1/nbBN3P/1b1nb1rb/4KQ1r/1R6 w - - 0 1 illegal: No proof kernel
3nQ3/br1b1B2/bRrbBq1P/bp1bR3/N1k4K/2B3r1/3RR1Pn/1NQ5 w - - 0 1 illegal: No proof kernel
2k1brR1/1b1R2Nr/Q4Rbp/1B2Q3/n1q3r1/b2P2B1/b1N2P1K/N2nR2b w - - 0 1 illegal: No proof kernel
4nk1N/BN3rn1/B2R1n1p/q6R/3PP2K/Br2RQ1b/2Bn2nb/1Q1n3b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 e4 c5 b4 f5 g4 a4 d4 h3 d6 f3 Kg3 f2 g5 a3 b6 h2 b7 c4 g6 h6 g7 c3 b5 c2 b6 f4+ Kf3 a2 Qe1 Ra7 Nd2 Na6 b8B Bh3 b7 Qa5 Be2 f1N Qd1 Nf6 g8B Nc7 Ba3 c1N Ba6 Ne2 Bb3 Nfg3 Bc2 Ngh5 Nc4 Nc3 Ne2 Ng7 d7+ Kf7 d8R Bd6 Rb1 a1N Rb3 Nce8 Qd3 Be5 Rd6 Kf8 Kf2 f3 Nf4 Rh7 Kg3 f2 Kh4 f1N Qf3 Nd1 Re3 Ra8 Ba7 Nb3 b8Q Nbd2 Qb7 Rb8 Qb1 Rb3 Ng6+ Kg8 Rd3 Nfe3 Nh8 Kf8 Rc3 Ne6 Rd3 Rf7 Rc3 N6g7 Rd3 Qa4 Na5 Qb5 Nb7 Qa5 Rg1 h1B Rg5 Bh2 Rh5 Ned5 Rc3 Nf4 Re3 Ng2+
b4N2/R1Q1qN2/4bp1b/2r2r2/b2n1P1P/1N1n2R1/1QKbbn2/B1RBN2k w - - 0 1 illegal: No possible last move
rrbN1k1q/2Rn4/Pb6/r2K1P2/1bnQBp2/B3r3/QRN3BN/r4r1B w - - 0 1 illegal: No proof kernel
Q1N2n2/3p1B2/Qbr2B1K/1b1bb1BP/1q1NQnr1/2k5/R1P3R1/b2r1b1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 b4 a5 e4 g5 h4 f5+ Kh3 f3 b6 g4+ Kg3 a4 b5 d3 h6 Kd4 Kf4 f2 b7 g3 e5 d2 h5 a3 h7 a2 b6 g2 e6 Nc6 b8Q Ne5 e7 Nd3+ Kg5 f4 b7 f3 Rh3 Ra6 Nc3 Bg7 Ne4 Be5 Qa8 Rc6 b8Q Qf8 e8Q Nf4 Rg3 Qb4 Qb5 Ne7 Qba6 Neg6 Nd6 Bb7 Nc8 Nf8 Bc4 f1B Bf7 f2 Nf3+ Kc3 Nd4+ Bd3 Qf1 d1R Qh1 g1B Rg2 f1B Qe6 Bf2 Kh6 Rg8 h8B Bb5 Bf6 Rg4 Qd5 Be3 Qe4 Bg1 Rb1 a1B Rb2 Be3 Ra2 Bf2 Nf5 Bb6 Nd4 Re6 Be3 Bd5 Bc1 Rc6 Be3 N4g6 Beg5 Nf4
2q4N/pb1RQRnR/5b1n/R1KB4/P2n4/nN4kr/1PQnQ1n1/2br2B1 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 c4 bxc4 d3 cxd3 gxh5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 Kf7 Ke3 Kf6 Kd4 c5+ Kd5 e5 a4 g5 h4 c4 f4 d2 h6 e4 h7 e3 h5 g4 h6 g3 Nf3 g2 Rg1 e2 Ne5 e1N Ra3 c3 Ng6 c2 Nc3 Be7 Nb1 Nc6 Rd3 Bb7 Qe2 d1N Nd2 Qc8 Nb3 Nc3+ Kc4 d6 Be3 c1B Rd5 Rb8 Ra5 Nb5 Rh1 g1N Bg2 Ngf3 Bg1 Bd8 Rh5 d5+ Kc5 d4 Rg5 Nd2 Bd5 Qd7 Rg3 Ng2 Rd3 Nf3 Rd2 d3 Rd1 Ncd4 Qc2 Qe6 Rd2 Kf7 f6 Na3 Rd1 d2 f5 Ke8 f7+ Kd7 f8Q Bf6 Qe8+ Kc7 Qf8 Rd8 Qe7+ Qd7 Qe2 Qc8 Rf1 d1N Rf2 Bh4 f6 Nd2 f7 Nde3 f8Q Nef5 Qfe7+ Rd7 Rf3 Ng7 Rf7 Bf6 Qf8 Ne7 Qe8 Nef5 Q8e7 Rf8 h8R Re8 h7 Nh6 Qf8 Re3 Qe7 Rg3 Rd8 Rh3 h8R Nab1 Q7e4 Na3 Kb4+ Kd6 Rh7 Rg3 Nh8 Re3 Q4g4 Ke5 Qe6+ Kf4 Qe7 Rd6 Rd7 Rh3 Nc5 Kg3 Nb3 Re6 Qb5 Re1 Qbe2 Qg8 Kc5 Rd1 Rd6 Qa8 Rd7 Qc8+
1N1rR2r/BQ3r2/2B3b1/2n5/1bbr2kN/q1NNPpb1/b2PQR2/1B3n1K w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 g4 Kf6 Kg2 Kg5 b4 c5 d6 a5 d7 f5 b6 h5 b7 a4 e3 c4 b5 f3+ Kh2 a3 b6 c3 Ba6 c2 Bf1 a2 Na3 f2 Bb5 f1R Ne2 f4 Ng3 h3 Nf5 h4 Ba6 Qe7 d8N Be6 Bc4 Nd7 b8Q Nh6 b7 Nc5 Bb5 Bc4 Bb2 c1R Nc6 Qd6 Rb1 a1B Bd4 Qe7 Qa7 Rd8 b8N Bc3 Rg1 Bb4 Kh1 h2 Ne5 Rc3 Qa8 Rd3 Bc6 Qa7 Rb3 Bd6 Nb5 Qa3 Nc3 Rf3 Rg2 Rf2 Ng3 Nf5 Qe2 Rf3 Rf2 Bc7 Kg2 h1B+ Kg1 h3 Qb7 Kh4 g5 Bd6 g6 h2+ Kf1 Bc7 g7 Bd6 g8B Bc7 Ng6+ Kg4 Nh4 Be5 Nge4 Ng3+ Ke1 Bg2 Bh7 h1B Rb2 Nf1 Rc2 Ne6 Ba7 R3d4 Nc5 Bh3 Nd3 Nc5 Ra2 Kh5 Nc1 Bhe6 Bb1 Kg4 Nd3 Bf5 Rb2 Bg6 Ra2 Qb2 Ra6 Qa3 Ra5 Ne4 Rd5 Nc5 Rd6 Ba2 Re6 Kg3 Rh2 Rf2 Re8 Bhd5 Rg2+ Kh3 Rg5 Bdc4 Rf5 Rg2 Rf7 Rg5 Kf2 Rf5 Kg1 Rf6 Qh2+ Kg4 Kh1 Rf5 Rc7 Rff8 Rf7 Bc7 Rf5 Rf7 Qe2+ f3 Rg5+ Kh3 Rg2 Bg3 Rf2 Kg4
1KQ1br2/1NQRB1b1/5Qn1/3Qb1nq/3n2kb/R2Pr1N1/1pP1N3/b4B1n w - - 0 1 illegal: No proof kernel
BNbR1r2/1b1n2br/B2Q4/3RB2Q/3P1Qb1/npr5/2NP1qk1/Q1K3br w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c3 f5 exf5 gxh4 Qg4 d5 Qd1 d4 cxd4 Qd6 Qb3 Qd5 Qd1 Qd8 f4 Kd7 g4 Kc6 a4 Kd5 a5 Ke4 g5 h5 f6 e5 g6 c5 a6 b5 f5 h3 f7 h2 g7 c4 a7 b3 f6 b4 Ra5 c3 Na3 b2 Bh3 b1B Ne2 Kf3 Ra6 b3 Ra4 e4 Nc2 h4 Be6 h3 Ng1+ Kg2 Qh5 e3 Kd1 Nc6 Bc4 Rh7 Ra5 Nb4 Ba3 e2+ Kc1 e1B Nf3 Bf2 Ne5 Bg1 Ba6 Qd5 Nc6 Qf5 Rc5 Qf2 Rd5 Rb8 a8B Bg4 Na1 Nc2 Bd6 Na3 Be5 Bbf5 Nc2 Bc8 Rd8 Nh6 g8Q Bg7 f8Q Nf7 Bd6 Ne5 f7 Nd7 Be5 Be2 Qd6 Bg4 Na1 c2 f8Q Be6 Qf4 Bg4 Kb2 c1R Nc2 Re1 Qc4 Re3 Qa4 Rc3 Kc1 Rb5 Bf6 Rf5 Be5 Rf8 Nb8+ Qf3 Qhh6 Nc4 Qa1 Na3 Bf6 Be3 Re1 Bg1 Re4 Qf2 Qg6 h1B Qe8 h2 Re5+ Kh3 Ra5 Be4 Be5 h1R Qh5+ Kg2 Rc5 Bc6 Rd5 B6b7
qNrn1R2/Bq3q1q/3R2q1/2N3Q1/Pb2B2B/k1Pn2rq/bR1K3p/1Q5B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 f4 b5 g4 h5 a4 d5 f6 Kd7 g6 Kc6 g5 Kc5 g7 e5 f5 b3 g6 Kb4 f7 d3 f6 h4 Ra2 d4 Qe2 e4 Ra1 b2 Qd1 e3 Qf3 e2 Ra3 h3 Nc3 b1Q Qe4 d2+ Kf2 e1Q+ Kf3 d1Q+ Be2 h2 Be3 Na6 Ra2 Qd3 Rb2+ Ka3 Qb7 b4 Ne4 b3 c3 Qec1 Nc5 Ne7 g8Q Be6 g7 Qh7 Bd3 Rc8 Ke2 Nc6 Be4 Qf1+ Kd2 d3 Nf3 Nab4 Nd4 Qfh3 Rd1 Qd7 Qb6 Nd8 Nc6 Qa2 Qb5 Qb7 Nb8 Qg6 Qh7 Rg8 Bg1 Be7 f8B Bd5 f7 Be6 Ke1 d2+ Ke2 Bd6 Be7 Nd3 f8R Bc4 Bh4 Be7 Ne6 Bb4 Qg5 Bd5 Nc5 Bf7 Rc2 b2 Bh1 b1Q Rb2 Qa8 Be3 Q2d5 Be4 Qdb7 Bef2 Rh8 g8B Ba2 Bgd5 Rg8 Bh1 Qgf7 Bde4 Rg7 Ne6 Rg6 Ba7 Qc2 Nc5 Rg8 Qe5 Rg3 Qg5 Qg6 Rdf1 Qb3 R1f6 Qc4 Rd6 Qcf7 Bhf3 d1Q+ Ke3 Qdf1 Kd2 Qg1 Bh1 Qgg7 Qhg6 Qh7 Q6f5 Qd4 Qf1 Qdf6 Qb1 Q6g6
3rRr1Q/1Rr2kN1/2b3qb/1rNKn3/pQRn3b/2BbRPP1/7r/1B1Q4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 e5 Ke3 h5 d4 a5 b4 c5 b6 a4 d6 h3 d7+ Kf7 b5 c4 b7 c3 d5 h4 b6 h2 d6 h3 Bb2 c2 Qc1 Nc6 b8R Nh6 b7 Nd4 Nd2 Qf6 d8R Bd7 Ne2 Qg6 Qd1 c1R Nf4 Rc7 Nh5 Ra5 Nb3 Rb5 Rg1 h1B Re8 h2 Bc3 Rg8 Rc1 Ng4+ Kd2 Bg7 Bd3 Rf8 Re1 Bh6+ Re3 Qg5 Ng7 Qg6 Rec8 Rd8 Nc5 Rf8 Ba1 Rd8 Kc3 Rf8 Re1 e3 Kc4 e4 Bc3 e2 Bb1 e3 Kd5 Ne5 f3 Rd8 Rg1 e1B Rc2 Bf2 Re1 Bh4 g3 e2 Rc1 Rf8 Re8 Bg2 Rc2 h1R Rc1 Bdh3 d7 Rh2 d8Q Bf1 Qd6 Bd7 Qb6 Bf5 Qa5 Bd3 Qb4 Bh3 Rc2 Bd7 Rc1 Ng4 Re3 Ne5 Re8 Rc8 b8Q Rd8 Rg1 e1R Rg2 Nec6 Rb2 Ree2 Qe5 Rc2 Qh5 Ne5 Rb3 B6g5 Qh8 Bh6 Be1 Rcd2 Rc4 Rb2 Bc3 Rb7 Qa3 Rc7 Rb7 Rb5 Qb4 Bc6+
RB1k4/b1nnr3/1rBRrr2/N1K2P1b/q3QP1b/rQ5Q/3pN3/R3R2b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kd3 d5 g4 e5 b4 a5 c4 h3 f3 h2 c5 e4+ Ke2 e3 Kd3 a4 c6 a3 c7 h4 b6 e2 b7 e1B b5 h3 b6 a2 Ne2 Nf6 Be3 Ra3+ Nec3 Nbd7 b8R Rh6 b7 Bh4 Bf2 Bc5 Qb3 Ba7 Ne2 Ke7 Bg2 Qe8 Rf1 h1R Ra8 h2 Re1 Rf1 b8Q h1B Bg3 Ra6 Qc2 Re6 Na3 Bb7 c8Q Rh7 Rad1 a1R Nc4 Ra3+ Qb3 Rf7 Na5 Rh7 Ra1 Bc6 Kd2 d3 Kc3 d2 Kb4 d1R Qf4 d4 Qe4 d3 Bb8 d2 Kc4 Nd5 f4 Rh6 g5 Rb1 g6 Nc7 g7 Rf6 g8R Rf2 Qcb7 Kd8 Qh3 Rb6 Rg6 Ba4 Kd4 Bd1 Qbd5 Rff3 Qb3 Re3 Rh6 Nf8 Kc5 Qa4 Qeb1 Re7 Bc6 R3e6 Q1c2 Ne8 Qe4 Nc7 Nc1 Bdf3 Ne2 Bh5 Qf1 Rff7 Qfh3 Rd6 Re6 Rf6 Re5 Rde6 Rd5+ Rd6 Bd7 Rde6 Rd3 Ra2 Rd6 Ra3 Bc6+ Nd7+
N2n1r1r/r5nQ/1BNr1r2/1B3pb1/1qrRPK1Q/3P2QQ/b2N1R2/4k2q w - - 0 1 illegal: No possible last move, all moves rejected
kNqrn1n1/2Q1BN1r/1R1n3n/1P5Q/BR3bP1/2Kp1R1b/B1b3b1/2B3b1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b6 h5 Kd2 d5 f4 Kd7 c4 Kc6 b4 Kb7 b5 e5 c5 a5 f6 e4 f7 e3+ Kc2 e2 f5 e1B f6 h3 g3 h4 Ra3 h2 Bh6 h3 Nc3 a4 Ne4 Bd2 Bg2 Nd7 Nf3 Rh7 Rb3 a3 Rb4 a2 Neg5 a1N+ Kd3 Kb8 b7 Nb3 c6 Na5 Ne5 Nc4 Bf3 Bc5 f8B Be3 f7 Ndf6 Bg4 Ne8 c7+ Ka7 b8R Ncd6 Rf1 h1N Rb6 h2 Nd7 Nf2+ Kc2 h1B Qc1 Nf5 Bd1 Ng4 Rf3 Nfd6 Be7 Bg2 Kb2 Rb8 Ba4 Ka8 Kc2 d3+ Kb2 d2 Qc3 Ba6 c8B d1B Qe5 Nc4+ Kc3 Bc2 Qc7 Bg1 f8Q Bce3 Qf7 Ncd6 Qh5 d4+ Kb2 d3 Kc3 Bc1 Nf7 Bce3 Bf4 N4h6 Bfg5 Bc5 Bc1 Bce3 Rf6 Bh3 g4 Bb7 Rf1 Bbg2 Rf3 Bf4 Bb7+ Ka7 Be4+ Nb7 Bd5 Ka8 Bdb3 Nbd6 Ba2 Rc8 Nb8 Qd7 Bf8 Rd8 Be7 Qc8
5bRr/rbn1Q2n/3q1PrK/1NBr1k2/P6Q/2pq4/R1B2BQN/Q2r1r2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 b5 Kh5 c5 f4 e4 g4 b3 a4 h3 d4 e3 d6 e2 d5 e1R f6 b4 f5 b2 f7 h2 g5 b3 g6 c4 g7 c3 Bg5 Na6 Na3 b1Q Nb5 b2 Bh4 Ra7 Ra2 Bb7 Nf3 Nc7 Bf2 Qd3 Qa1 b1R Rg1 h1R+ Nh2 Nf6+ Kh6 Re5 Be2 Re1 Bd1 Rf1 Bc2 Rd1 Rg4 Rhf1 Rg6 Be7 g8Q Bf8+ Kg5 h5 Qg7 Rg8 Kh6 Nh7 f6 Be7 f8B h4 Rg1 h3 Qg2 Ke8 d7+ Kf7 d6 Ke6 Qg4+ Rf5 Qh4 Rg7 Rg2 Qb8 d8Q Rd5 d7 Kf5 Qe8 Bd6 d8Q Ba3 Qd6 Qd8 Qa6 Qd6 Qac6 Bc5 Qe7 Bb4 Nf3 h2 Rg6 h1R Nh2 Rg8 Rg4 Rhg1 Rg2 Rh8 Rg8 Rg7 Qd8 Rc5 Qg2 Rd5 Be7 Qe6 Bec5 Qe5 Bb6 Bf8 Bbc5 Qd6 Qe7 Rg6+
N4Bq1/B1NQnk1r/3Pnnr1/Rq1P1Q2/Qb2B1R1/2pb1B2/3K4/1n4nn w - - 0 1 illegal: No possible last move
1RQb1Q1r/nr5b/2bp4/k4NP1/r1qNb3/QbrP3B/B3Nn2/1NK2R2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 f4 h5 g4 a5 c4 e5 g5 h3 c5 e4 b7 h4 f6 e3 f5 a4 d3 d6 f7+ Kd7 b6 Kc6 f6 Kb5 c6 b3 c7 e2 Kd2 e1R Qh5 h2 Ne2 b2 Nf4 h3 Na3+ Ka5 Rc1 b1B Rc2 Rc1 Ne2 Nc6 b8Q Be7 f8Q Nh6 f7 Ng4 b7 Nf2 Qg4 Na7 Rb2 Bf5 c8B Qc7 Be6 Qc4 Qbc8 Rc3 b8N Bc2 Kc1 Bh7 Nb1 a3 Rb6 a2 Nc6+ Ka4 Qe4 a1R Ncd4 Rb8 Qa8 Bd8 Nf5 Rb7 Bg2 Ka5 Rf1 h1B Bed5 h2 Bh3 Rd7 Rb8 Be4 Be6 h1B Bd5 Qa6 Bb3 Ra4 Ba2 Nc6 Qa7 Rb7 Qc5+ Qb5 Qa3 Qc4 Qe7 Qd4 f8N Na7 Ne6 Qc4 N6d4 Bc6 Qe8 Bhe4 Qf8 Bb3+
2n1nB1Q/n2k1N2/1pn3r1/Prrnqb2/2R2b2/2BRr3/Q2R1PK1/1B1R2N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 h5 a4 e5 d4 c5 f6 b3 f7+ Kd7 g5 b6 d6 e4 g6 c4 a5 e3 d5 c3 g7 c2 Bb2 c1N Bc3 h3 Bd4 h4 Bg2 h2 Kf1 e2+ Ke1 b2 Bc3 h3 Na3 b1N Qc2 Na2 Qd2 Rh6 Qb2 Nb4 Bd2 Nc3 Nb5 N8c6 Nc7 Rg6 Rd1 Qe8 Qa1 Nge7 g8Q Na7 Qh8 Bh6 f8B Nbc6 Qa2 Bf4 Ne6 Rb8 Nd8 Rb7 Nf3 Rc7 Rf1 h1N Ng1 h2 Be4 Ng3 Bb1 h1R Nf7 Nge4 Rc1 Nd1 Rc4 Nf6 Bc3 Ne3 Kd2 Nfg8 Rd1 e1R Kd3 Re2 Ke4 Rh5 Kf3 Nf6 Rd3 Neg8 Rd1 Qe5 Rd3 Nge7 Rd1 Neg4 Kg2 Re3 Rd3 Ke8 Rd2 Bf5 Rd3 Kd7 Rd2 Ne8 Rd1 Kc8 d7+ Kb8 d8R+ Nec8 d6 Ngf6+ Kf1 Nd5 d7 Nce7 Rd3 Rc5 Rd1 Kc7 Rd3 Rgh6 Kg2 Nec6 Bd2 Ndb4 Qh7 Rd5 Qh8 Qe6 Rdc3 Bh3+ Kh1 Rb5 Rb3 Bg4+ Kg2 Rg6 Rb2 Rhc5 Bc3 Qe5 Re2 Rf6 Re1 Bf5 Rd1 N8e7 Rb8 Re6 d8R Rf6 R8d4 Rd6 Rd8 Nec8 R4d2 Rh6 R8d4 Nd5 R4d3 Kd7 Rc2 Rd6 Rcd2 Rg6+
1b1R1b2/QB2q1rP/B1N5/r2bb1b1/p1Nq3n/1n1R2B1/1K1RB1kP/Q2b4 w - - 0 1 illegal: No possible last move, all moves rejected
3n3N/3K3P/1r2B3/B2Pnn1n/Q1r2q2/1R1Nnq2/R3Bnpb/QR1bB1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 f4+ Kd2 c3+ Kd3 a3 Kc4 g4 h7 c2 b6 f2 Kb5 f3 Bd3 f1N Rh5 a2 Nc3 f2 Bg5 c1N Rh2 g2 Qa4 g3 Nf3 g1N Ne5 g2 Rh3 Ne3 Nd1 f1N Be2 Ng3 Ng6 Nc6 b8Q+ Qc7 b7 Nf6 Bh4 Ra6 Qa8 Nf3 b8R Ngf5 Be1 Nd3 Nb2 Nf2 Nd3 Nfe5 Rb7 Rg8 Nh8 Nd8 Ra7 Be7 Rb1 a1Q Rf3 Qac3 Rh3 Kd7 d6 Ke6 d7 Rg4 d5+ Kd6 Qa1 Nh5 Rf3 Rc6 Ra2 Bg5 Qa5 Bf4 Qa4 Bh2 Rg3 Rc4 Rf3 Rg6 Rh3 Ndc6 d8B Qf7 Bb6 Nd8 Ba5 Qf6 Rg3 Qg5 Kb6 Qf4 Rf3 Ke7+ Kb5 Kf6 Kb6 Kg5+ Kb5 Nd7 e5 Kg4 e6 Ne5 e7 Rh6 e8B Kh4 Rg3 Ra6 Rg6 Kh3 Bf7 Rf6 Be6 Ba6+ Kb6 Bb5 Qb4 Ba4 Rg7 Rg6 Rb7 Bd1 Qa4 Rh6 Nc5 Qd3 Kc7 Qde4 R7b3 Qef3 Bc8 Rb6 Be6 Bg3 Kc8 Kh2 Kc7 Kg1 Kc8 Nec6 Kd7 Bh2 Nd3 Ne5+
6q1/rrNrr2p/1R1QR2B/3b4/kqn1Rrr1/5BnP/2N1bPRK/3B1Q2 w - - 0 1 legal: proof: e4 b5 d4 c5 a4 cxd4 axb5 f5 g3 fxe4 Bf4 e6 Bg5 Bd6 Bc1 Bf4 gxf4 Bb7 Nf3 Ba6 Ng1 Bc8 b4 a5 c4 g5 b6 d5 b5 Kd7 h3 d3 f5 g4 c5 g3 b7 a4 f6 d4 b6 Kc6 f7 Kb5 f8R g2 c6 e3 c7 e5 Ne2 g1R Ba3 e4 Be7 a3 Bf6 a2 Rh2 Nc6 b8Q Nh6 b7 Na5 Rh1 Nc4 Be7 Be6 c8B Rg4 Qc1 Ra7 Qd6 Bd5 b8R+ Ka4 Rf6 Qg8 Na3 Nf5 Bg2 d2+ Kf1 d1B Kg1 d3 Re6 d2 Nc2 Ng3 Nf4 e2 Kh2 e1R Rg1 e3 Bg5 e2 Bf3 Rb7 Rb1 a1R Bh6 Ra2 Re4 Ra1 Ne6 Rf4 Rg2 Rg1 Ned4 e1Q Ne6 Be2 Rb6 d1R Nc7 Qb4 Bcg4 Rd3 Qf1 Re3 Rd4 Re7 Re4 Rd7 Rbe8 Ra3 R4e6 Re3 Rg6 Ree7 Re6 Qg7 Ne1 Bd3 Re4 Ref7 R8e6 Rfe7 Be2 Nh5 Nc2 Ra8 Rg3 Raa7 Bgf3 Qg8 Bd1 Be2 Rg5 Rg3 Rge5 Rg6 Rg5 Rgg7 Rg1 Ng3 Rg2 Rgg4
1QRBbrk1/Kr3NPn/3B4/NP1Brqp1/bBnb4/1QR3Q1/4r3/3b3r w - - 0 1 illegal: No proof kernel
2n5/K2Q2P1/Rr1B3P/pR1QqrNk/b2nb3/1Nn2N2/nb4R1/bNb4B w - - 0 1 illegal: No proof kernel
1k3qB1/1N1Kn1p1/Q1B2n1R/bQr5/3BP1P1/3nr2N/r2rn3/N1Rbr2N w - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 Qd3 e5 Qg6 exf4 Qxh5 Nf6 Qh7 Ng8 Kf2 f5 Kf3 a5 b4 d5 h4 Kd7 g4 Kc7 c4 d3 e4 a4 c5 d2 c6 d1N b6+ Kd6 b5 a3 c7 d4 b7 a2 h5 d3 h6 d2 b6 Kd7 Ne2 Nf2 Bb2 d1N Bd4 Nc3 Na3 Ra4 Rc1 a1R Nc2 Ra5 Qg6 Nd3 h7 Bb4 Rh6 Rc5 Ng3 Qf8 Nh1 Ra2 Na1 Nc6 b8Q Nf6 b7 Ba5 Be2 Rg8 h8N Ne7 Nf7 Rd2 Bd1 Ne2 Bb3 Kc6 Ba2 Be6 c8B Bb3 Ng5 Bd1 Bd7+ Kb6 Qbe8 Kc7 Bc6 Rh8 Qd7+ Kb8 Nh3 Rh7 Bg8 Ra2 Kg2 f3+ Kh2 f4 Qde8+ Ka7 b8N f2 Nd7 f1R Kg2 Re1 Kf3 Rd2 Qb8+ Ka6 Qb5+ Ka7 Nb6 Kb8 Nc4+ Bb6 Na5 Ra2 Nb7 Ba5 Kg2 f3+ Kh2 f2 Kg2 Ng1 Kg3 f1R Kh4 Rff2 Kg3 Rfb2 Kh4 Nfd5 Kg5 Ne2 Qe6 Rd2 Qf6 Nc8 Kf5 Nce7+ Ke6 Rh8 Kd6 Rh7 Qe6 Nf6 Qec4 Rh8 Qa6 Rh7 Qcb5 Rh8 Rg6 Rhh5 Rh6 Rhf5 Ke6 Rf3 Kd6 Re3 Ke6 Ne8 Kd7 Nf6+
1B4rn/2NbkrpR/P6N/KBqBN2Q/3r1qNr/4rRb1/r5P1/2n3Q1 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 h5 Qc2 d5 cxd5 e5 Qf5 exf4 Qxh5 Qg5 Qh7 Qd8 e4 c5 h4 f5 a4 b5 d4 f3 Kd2 f2 a5 b3 Kc3 f4 e5 c4 e6 f3 e7 b2 Kb4 c3 h5 c2 a6 Qb6 d6 Kd7 e8B+ Kd8 h6 Bd7 d5 Ne7 Nh3 Ng6 Nc3 Qc5+ Ka5 b1R Bc4 f1R Bf4 c1Q Ra3 b4+ Nb5 b3 Nf2 b2 Ng4 f2 Rf3 Re1 Bb3 f1R Bg3 Q5e3 Nc7 Ra1+ Ba2 b1R Bf4 Be6 d7 Ke7 d8N Bd7 Nf7 Rb4 Nfe5 Rd4 Bh2 Qf4 d6+ Kd8 Bg3 Re3 Rh3 Rg8 Qh8 Be7 h7 Bh4 Bh2 Bg3 Rh5 Bc8 d7 Ke7 d8N Nd7 Ndf7 Nc5 Bb5 Bd7 Nfh6 Nd3 Rh3 Qc5 Rh5 Rae1 Bd5 Nc1 Rh4 R1e2 Rh3 Rgb8 Qc8 Ra7 h8Q Rh1 Qb7 Rf2 Qb6 Rg8 Qh7 Nh8 Qhg6 Ree4 Qh5 Ra2+ Ra3 Rd3 Ne8 Bh4 Ba8 Qc8 Qf5 Be6 Nc6+ Kd7 Qg1 Qg5 Nf7 Rdd4 Bb8 Bg3 Rh7 Rh4 Nfh6 Qf4 Nce5+ Kd8 Bd5 Rf7 Qh5 Qc5 Nc7 Ke7 Qh1 Bd7 Qg1 Rad2 Rf3 Re3 Ba2 Rf2 Bd5 Ra2+
N2KB1k1/r1BPrr1r/4NQ2/Q3bnP1/1qRN1r1N/5pR1/6r1/1n1bq2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 d4 h3 b4 a4 e4 h4 b6 c4 g5 h2 d6 h3 d7 c3 d5 f3 d6 a3 b7 a2 b5 f2 b6 f4 Qe1 c2 Nf3 Na6 b8R Nh6 b7 Ra7 Qa5 Nc7 Nh4 Kg8 Bb5 f1R Na3 Nd5 Ke6 Qb6 e5 Nf5 Ra8 Rg1 b8Q Nc3 Rb1 a1R Rb4 Rf1 Rc4 Ra2 Bc6 Qc5 Qb2 Rh7 Nb5 Bg7 Nd4 Nb1 Rb8 Rf3 Rb3 Qb4 Qc3 Bb7 d8N Rf1 Bd2 c1R Kd7 Rce1 e6 Be5+ e7 Rf7 N8e6 Rc2 Ba4 Bf3+ Kd8 Bd1 e8N Ra2 Bc1 Rg2 N8c7 Re4 Be8 f3 d7 Rf4 Na8 Re1 Rb2 Ree4 Ra2 Re3 Ra1 Re1 Rg1 h1Q Qb2 h2 Bd2 Rge2 Rg3 Rg2 Qc3 Qf1 Bc1 h1R Ba3 Qb5 Bd6 Qb4 Bc7 Re3 Ng6 Rhh7 Nh4 Na3 Rc1 Nb1 Qb2 Ba4 Re1 Bd1 Qba1 Qf2 Rh1 Qfe1 Qb2 Qa3 Qbb6 Qab4 Qd6 Ree2 Qe7 Ree4 Qf6 Bd6 Ng7 Ree7 Nge6 Be5
b2kb3/1pr1nqb1/Rn1n2Qb/1P2B1RK/6rB/N1PR1N1B/2B5/1Q2n1n1 w - - 0 1 illegal: Other
3N4/p1k2r2/r3Q1KB/2B1b2b/QRnb2PN/2bn2Nr/P1R4r/1N1rQ1q1 w - - 0 1 illegal: No possible last move
r2qN1Q1/b1r2N2/2k2r1K/2Nnn2N/2B2P2/2QRBp1R/b4P1b/n1Q1nr2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 Qe2 f5 Qa6 b5 axb5 f4 Qc6 Qc7 Qf3 Qe5 Qe2 f3 Qd1 Qf4 exf4 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 a5 b4 d5 c4 Kd7 g4 h5 c5 e5 g5 e4 g6 e3+ Kd3 a4 b6 a3 b7 e2 g7 e1N+ Kd2 a2 b5 h3 b6 h2 Ne2 h4 Qb3 h3 Ng1 d3 Ke3 d2 Bb5+ Nc6 b8Q d1Q b7 d4+ Ke4 d3 Kf5 d2 Kg6 Be7 Bc4 Rh7 Qc3 Bh4 Na3 Nf6 g8Q Nd5 Nb5 Bg3 Nd6 Ne5+ Kg5 Rf7 Kh6 Kc6 Ne2 Be6 Ne8 Rc7 Qc8 Bf7 Rb1 a1B Rb3 Bb2 Qd4 Ba1 Rd3 Bb2 Qc3 Be6 Rg1 h1R Rg2 Bf7 Rh2 Rf1 Rh1 Bh2 Ng3 Ba3 Nh5 Bb4 Qcg4 Ba5 Qg1 Bb6 b8N+ Kb7 Q1g7 Ba7 Na6 Kc6 Q7h8 Qa4 Qa3 d1N Be3 Qa5 Qc3 Qb6 Qc1 Qb8 Qhg7 Qd8 Q7h8 N1c3 Qhg7 Nb5 Q7h8 Nd4 Qhg7 Kb7 c6+ Kb6 Nc5 Ndc2 Q7h8 Na1 Qhg7 Rd7 c7 Kc6 c8N Rc7 Rb3 Bg6 Ncd6 Bb1 Rd3 Ba2 Qd2 Rg1 Nf7 Rg6+ Kh7 Rf6 Qg1 Bg3 Qc3 h2 Kg7 Ng2 Qgc1 Ne1 Rg1 h1R Rf1 Rh2 Rh1 Rg2 Kh7 Rg1 Rh3 Rf1 Kg7 Bh2 Kh7 Ng6 Kh6 Ne5+
n1n5/q1BrnB1r/3B4/3K1Bnb/Q2RP1N1/1P2Nr2/pb2R3/kbQ2r1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 g5 c5 d6 a5 d7 f5+ Ke5 a4 b6 f3 d5 h3 b7 h2 d6 f2 g6 f4 g7 a3 Nf3 h4 Ne1 h3 Rg1 h1B Qd2 Kb3 e3 a2 Bg2 f1N Bf3 c4 Qg2 c3 Nd3 h2 Kd5 c2 Ne1 Qc7 d8N Rh7 d7 Ra7 Be4 f3 Qg4 f2 Na3 Na6 b8B Nd2 Nd3 f1R Rg2 Nc4 Bf5 Nd6 Nc6 Rf3 d8Q Qb7 Bd2 c1R Ba5 Rcf1 Nc2 Qe7 Qg5 Rd7 Nf2 Bb7 Re1 Nc8+ Bd6 Ba8 Rg4 Nc7+ Kc5 Bg2 Ne5 h1N Re2 Ng3 Rd4 Be4 Qe8 Na8 Bc7 Qf7 Neg4 Nge7 g8B Bg7 Nh1 Bf6 Na3 Bb1 Nc4 Qg7 Bf7 Ne4+ Kb5 Be5 Qh6 Ng5 Kc5 Bh3 e4 Bg2 Nd2+ Kc2 b3 Kb2 Nc4+ Ka1 Nce3 Bh3 Rd1 Bb2 Rd4 Rd8 Qa4 Rd7 Qe6 Bg2 Qec4 Bh3 Qc3 Bg2 Qc1 Bh3 Ngf2 Bg4 Kc4 Bh5 Nfg4 Qf6 Bf4 Qb6 Bfd6 Qb7 Kc5 Qa7+ Kc4 Ng8 Kd5 Nge7+
n1rQ3r/Q1B1R2R/1bk1b3/2P4N/1bN1n1BP/3pKn2/1q2nB2/r2B1r1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 h4 a5 e4 d5 c4 Kd7 b4 g5 h6 f3 e5 d3 h7 a4 b6 f4 b7 d4 e6+ Kc6 e7 g4 e8B+ Nd7 b8Q a3 Bg6 d2 Be2 d3 Nh3 a2 Bh5 Nb6 Re1 Be6 Qa7 Rc8 Na3 Na8 Bb2 Bc5+ Bd4 Qb6 Qb1 Nf6 Bd1 Qb8 Qc1 Bb6 c5 Qb7 Rb1 a1B Nc4 Bc3 b5+ Kd7 Ng1 Bb4 Ne2 Kc7 Ng3 Ne4+ Kf1 f2 Be3 B6a5 b6+ Kc6 Bd4 Qg7 b7 Bb6 b8B Qf6 Kg2 f1R Bf2 Qb2 Bc7 Rh1 Nf5 g3 Kf3 g2 Ng3 Rg1 Bg4 Rf1 Nh5 g1N+ Kg2 Ne2 Kf3 Rhe8 h8Q Rf8 Bb3 d1R Qf6 Rh8 Qd8 Rd2 Qd1 Rc2 Ra1 Rc1 Ra5 Ra1 Qb1 N2c3 Bd1 Ne2 Rb5 B6a5 Rb8 Bb6 Rb7 Rg1 Qd4 Bg8 Bb8 N4c3 Bb3 Nc1 Bg3 Bf7 Re8 N1e2 Qd8 Be6 Rh7 Ne4 Bc7 Re1 Ree7 Rc1 Be1 Rd1 Kg2 f3+ Kf1 f2 Kg2 f1N Kf3 Qe5 Bf2 Nfd2+ Ke3 Qb2 Bc2 Rh1 Qf1 Rg1 Bd1 Nf3 Qh3 Re1 Qh1 Rf1
R4r1b/4N1k1/1K4p1/R2QPrBb/BQ3qn1/rn5Q/1Qn3P1/bb1Rr2N w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 f5 d4 Kf7 e4 c5 b4 h5 d6 a5 d7 g6 d8Q h4 d5 f3 Ke3 f2 e5 f4+ Kd3 c4+ Kd4 c3 d6 c2 Kc5 a4 b6 h3 b5 f3 b7 a3 b6 a2 Bd3 f1R Ba6 f2 Nc3 Nc6 b8Q Nf6 b7 Bg4 Qf3 Nb4 Kb6 Kg7 d7 Bh5 Bg5 c1N Bb5 Ng4 Nd5 Qf4 Ba4 h2 Ne2 Nc2 Ne7 Nb3 Ng3 Rg8 Rd1 a1B Qdc8 Re1 d8R f1B Qd5 Bd3 Qbd6 Rf1 b8Q Ra5 Rg1 h1R Qb4 Rf2 Rge1 Be4 Re3 Re1 Nh1 Rff1 Rc3 Ra7 Rc5 Ra8 Bc6 Ra3 Ra5 Rh8 Ba4 Bd3 Nc6 Be7 Re8 Bf6 Ne7 Rf8 Qcc3 Nce3 Qbc8 Bb1 Qb2 Nc2 Qcc3 Qc1 Qcd3 Rf5 Rea8 Qf4 Qdc3 Kh7 Qcd3 Bh8 Qh3 Kg7
3Q1N1R/1kq1R3/1B1P1Rr1/rB1p1b2/3rQ1rP/1bn1n1NK/N5nn/2R1b3 w - - 0 1 illegal: No proof kernel
N1N2QK1/B2R4/1Pr5/rB2qpB1/1Bnn3b/RPb2b2/2nQrkbQ/2r5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 f5 e4 h5 b3 a4 g5 a3 g6 f3 d6 f2 g7 h3 d7 h2 Ke6 Kd4 Kf7 c5 e5 h4 e6 c4 e7 a2 e8Q h3 Na3 c3 Nc4 c2 Qee2 Bb7 Nb6 Ra5 Nc8 Na6 Ba3 c1R Bb4 Ne7 g8Q Qc7 d8B Qe5 Bb6+ Rc5 d3 Bf3 Ba7 Nc6 b6 Be7 Qdd2 Bh4 Qf8 Rc2 Rd1 Rh6 Kg8 Bg2 Qh5 a1B Be2 f1N Nf3+ Kd5 d4 Ke4 d5 Ne3 d6 Nd4 d7 Bc3 d8B Rc6 Qh7 Nc4 Bg5 Rca2 Rhf1 h1R Ra1 h2 Rfd1 Rc2 Ra3 Re1 Qh8 h1B Bf1 Re2 Qh5 Nb5 Nd4 Rc1 Ne6 Nd4 Nc7 Bf3 Na8 Bhg2 Bbe7 Nb4 Qhh6 Nbc2 Bb4 Be1 Qh2 Bh4 Qe1 Ne6 Rd7 Ned4 Qd2 Bg4 Nd6+ Kf3 Nc8 Kf2 Qd3 Re4 Be2 Bf3 Qd2 Nb2 Bd3+ Re2 Bb5 Nc4
2R1KNRB/1kN2r1P/1P2nn1Q/4bBQ1/1B1n4/r5br/1Qr1p1q1/B2b2n1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 a5 Kd4 g5 Ke5 c5 h4 Kc7 f4 e3 d4 e2 b4 e1B d6+ Kb6 d7 g3 Ke6 c4 Kf7 e5 h5 a4 d5 e4 f5 a3 h6 g2 f6 g4 h7 a2 d6 e3 Ne2 g1N Qd2 g3 Nd4 g2 Bb2 e2 Nc3 Bf2 Nd5+ Kb7 b6 c3 b5 c2 Qh6 c1N Ne6 Ra3 Ndc7 Nb3 Rc1 Nc5 Ba1 Bg7 Nf8 Nc6 Rh4 Ra5 Rg4 Ra7 Rg5 Ne6 Rc2 Kb8 b7 Bg3 Rc3 Ra3 Rg4 Ka7 b8B+ Kb7 b6 Ncd4 Rc4 Ngf3 Rc1 g1R Bh3 Rb3 Rg6 Re3 Bf5 Rf1 Nb5 Nh2 Bc3 Nb3 Bg4 Nc7 Ne6 a1R Rc2 Ra4 Ba1 Bh4 Rg5 Rc1 Bf5 Rh3 Rg1 Ra3 Rg4 Na8 Rg1 Qc7 Ke8 Nf3 d8Q Qc6+ d7 Qd5 Rg6 Bg3 f7 Ng1 f8B Qg2 Bbe5 Bf6 Bb4 Nc7+ Kf7 Bg7 Qdg5 Bf6 d8Q Bd7 Qd2 Nd4 Rc6 Bg7 Q8g5 Rc4 Qb2 Bf6 Nf8 Nce6 Rc8 Bc6 Nc7 Ba4 Nd7 Bd1 Ke8 Rc2 Bed6 Bg7 Bf8 B7e5 Bg7 Qd5 Rf6 Qg2 Rf8 Ne7 Bf6 Nd5 Bg7 Rg8 Bh8 Rg7 Rg8 Rf7 Nf8 Nf6+
Q1r1K1NR/1q4bp/bPr1br1P/B1B5/2k1NBnn/rn4B1/Q4N1R/2b5 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 g5 e3 g4 Be2 Be7 Bf3 gxf3 Qc2 Bd6 Qd1 Bf8 Kf2 Kd7 d4 Kd6 h4 f5 b4 a5 g4 c5 e4 a4 e5+ Kc7 g5 Kb6 g6 c4 d6 a3 h5 a2 d5 c3 d7 c2 e6 Bg7 e7 Ra5 e8Q Bc3 g7 Ra8 h6 Nc6 d6 Qe7 Qe2 Nf6 g8N Ne5 Nd2 Ra3 Nh3 Ng6 Ne4 Nh4 d8B+ Qc7 Rb1 a1N d7 Nb3 Be7 Qb7 Rh2 Bd4+ Be3 c1B Qa2 Ng4+ Kg1 Ng6 Nhf2 Nh4 Bd2 Bg7 d8B+ Qc7 Bd6 Be6 B8e7 Qa7 Qa8 Qb7 Bc5+ Kc7 b6+ Kc6 b5+ Kd5 Bd8 Kc4 Ne7 Rf8 Ng8 Rf7 Ba5 Rc7 Bg5 Be3 Rd1 Bc1 Rd8 Rc6 Ne7 Rc7 Rh8 Rc6 Ng8 Rc7 Nh3 f2+ Kh1 f1B Nf2 f3 Bf4 Rc6 Bg3 f4 Kg1 Qa7 b7 Rc7 b8B Qb7 b6 Rc6 Nd3 f2+ Kh1 f3 Bbf4 Be2 Rg2 Nf6 Kh2 f1R Ndf2 Ng4+ Kh3 Rd1 Rh2 Rd7 Qf8 Kd5 Qa8 Ba6 Nd3 Kc4 Ndf2 Nf5 Bfe3 Rdc7 Bef4 Nd4 Kh4 Nf5+ Kh5 Nh4 Nh3 f2 Kg5 f1R Nhf2 Bd4 Bcb4 Ne5 Kf6 Bdb2 Be7 Bc3 Kg7 Ng4+ Kf8 Be5 Ke8 Bg7 Nh3 Rf2 Bc5 Rf3 Bfd2 Rf4 Nhf2 Rf6 Bdf4 Rc8+
2b2b2/Rb1qbBP1/3B4/4Q1rn/NR1N4/Rr3N2/3KpQPr/1knRn2n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 c4 Kf7 b4 Kg6 f4 Kf5 c5 h5 g6 d5 g7 a5 b6 e5 b5 a4 b7 h4 c6 e3 c7 Ke4 b6 e2 f5 d3 f6 d4 f7 a3 Qb3 a2 Qb4 h3 Be3 h2 Qb2 d2+ Kf2 Kd3 Nh3 d1B Ke1 e4 Rg1 h1N Qb5+ Kc2 Qh5 d3 Bc5 Nd7 b8R Ra3 b7 Ngf6 Qe5 Rb3 Bd6 Nc5 Ng5 Nh5 Nf3 Qd7 Nc3 Kb2 Kd2 e1N Ra8 Bc2 Rd1 a1B Na4+ Ka2 b8R e3+ Kc1 Bc3 Ra7 Bb4 Rb5 Be7 f8Q Rh6 Rb8 Rg6 Qff6 Rg5 Be2 Bb7 c8N Bf8 Ne7 Bc8 Nd4 Ka1 Bf3 e2 Ng6 Ba3+ Kd2+ Ka2 Rb4 Bb7 Ke3 d2+ Nc3+ Kb2 Bd5 Ncd3 Qf2 Nc1 Nh4 Bf5 Nhf3 Bh3 Ke4 Bg4 Na4+ Kb1 Rf1 Bc8 Bf7 Bf5+ Kd5 Be4+ Kc4 Beb7 Rg1 N1g3 Rh1 Be7 Rh3 Nh1 Rb6 Bc5 Rb4 Bf8 Bc7 Bce7 Bd6 Be4 Rg3 Beb7 Nh2 Rb2 Ra3 Nf3 Kc3 Rb3+ Kc4 N1g3 Rg1 d1R Re1 Rd3 Rd1 Ne1 Bc5 Ne4 Bd6 Rh3 Nhf3 Rh1 Qg1 Neg3 Qf2 Rb2 Kc3 Rb3+ Kd2 Rh2 Qd5 Nh1 Qe6 Ba6 Qe5 Bab7
1b1b1BbR/1K1kP1Q1/2N1nRBn/1nnr3r/N5qr/N3Qb1P/1pN5/2B5 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 c5 Kf3 g5 Ke4 f5+ Ke5 b5 d4 c4 a4 g4 e4 b3 h6 c3 d6 g3 Kd5 f3 h3 b2 a5 f2 e5 f4 e6 c2 h7 b4 a6 b3 a7 f3 Be2 f1B Bd3 g2 Qd2 f2 Qh6 Be2 Kc5 f1R d5 Rf4 Na3 b1N Nf3 g1B+ Nd4 Qd7 Kb6 Rh4 Qe3 Bh2 Rf1 b2 Rf6 Na6 Bg6+ Kd8 Ra2 Nh6 Ra1 Qa4 d7 Nc5 Ra2 Ke7 d8N Bf3 N8c6+ Kd6 Ra1 Be7 Ra2 Rd8 h8Q Nc3 Qg7 Nb5 Ra1 Bd7 Ra2 Rac8 a8N Be8 Ra1 Bf7 Ra2 Bg8 Ra1 Na6 Kb7 Nac7 Nb6 Ra8 Ra2 Ra5 Ra1 Qb4 Na4 Qc4 Bd2 c1N Ndc2 Nd3 Re1 Ra6 Bc1 Ra5 Rg1 Rd7 Rg5 Bd8 Rh5 Nf7 Rh8 Qg4 N6b4 Ke7 Nc6+ Ke8 d6 Bg3 Be4 Nh6 Bf5 Nc3 Bh7 Rah5 Bf5 N3b5 Be4 Rf7 Bg6 Nc5+ Kb8 N5a6+ Kb7 Be7 Rf4 Rd5 Na5 Bg5 d7+ Ke7 d8B+ Ke8 Be4 Rff5 Be7 Bh2 Bf8 Bd8 e7 Rfh5 Rf5 Kd7 Rf6 Ne6 Nc6 Bb8 Bg6 Nac5+
2b5/R2nP1Q1/QN1n3B/1bPp2nr/RRB4b/6N1/3Q1rk1/qb1rK1nR w - - 0 1 illegal: No possible last move, all moves rejected
1b1r1N1K/2PBRbn1/rr1n3R/3BN3/3PbQr1/1Q1p3b/2n3B1/kN1qB3 w - - 0 1 illegal: No proof kernel
N1Nn3B/1PB3Q1/2r1N1K1/2nP3n/b1pQ1RbN/2b2qR1/r5nr/2kb3B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 f5+ Ke5 a5 g6 a4 d6 a3 d7 f3 b6 f2 d5 f4 Kf5 f3 b5 a2 g7 h3 b7 h2 b6 h4 Bh6 h3 Bd2 Nc6 b8B Rh6 b7 Nf6 g8Q Nh5 Ba5 Bg7 Qd4+ Kb3 e4 Kc2 e5 Kc1 Bg2 f1B e6 f2 e7 Bb5 e8N f1N Nf3 c4 Nc7 Ba4 Rg1 h1B Bc3 h2 Nh4 Qf8+ Kg5 Rf6 d8N Bg4 Nde6 Nd8 Qh8 Ra7 Na8 Bgd1 Bf4+ Ne3 Bc7 Ra5 Be4 Bf3 Rg3 Bg4 Bh1 Ng2 Qg8 Ra6 Qf7 Rf2 Kg6 Rc6 Qe7 Qf3 Nd2+ Kc2 Rb1 a1N Ne4 Nb3 Nd6 Nc5 Nc8 Rd2 Rb3 Kc1 Ba1 Bf6 Qg7 Ra2 Re3 Be5 Re4 Bf6 Qg1 Bc3 Rf4 Bb4 Bae5 Bc3 Qd4 Ne3 Bg2 h1R Bf6 Rh3 Bh1 Rhh2 Qd7 Nf1 Bh8 Ne3 Q7g7 Ng2
6R1/kp4rn/1n4n1/n4b2/2PQ1Prb/2R2KNb/Q1r1BqNQ/2Q1BRb1 w - - 0 1 illegal: No possible last move
b1N1q3/1pk2b1R/1n2RP2/rb2b1B1/2n1B1Q1/1QRPrN1K/rn4Rr/7Q w - - 0 1 illegal: Other
qN2n1Qr/P1B2B1R/2b1r1P1/1Q2NbbK/Q1nn1B2/2pn3Q/4k1r1/3R3b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Kd4 a4 b5 a5 c5 a6 e5 d6 c4 a7 e4 d7 h3 f6 h2 f7 b3 f5 c3 f6 b4 Bc4 e3 Kh5 e2 g4 e1N g5 b2 g6 b3 Na3 Be7 f8Q b1N f7 b2 Qa4 Bg5 Qfb4 Nc6 f8Q Nd3 Qh6 Qe8 d8B Bf5 Bc7 Ke4 Bb6 Nd4 Ne2 Kf3 Qbb5 Qd8 Rd1 h1B Bc7 Qd5 Bb3 Re8 Nc4 Qa8 Ne5+ Kf2 Bc4 Bc6 Bf7 Na3 Rh1 b1R Rd1 Nb3 Nd4 Nc4 Rh1 Rb2 Rh2+ Bg2 Ndc6 Ke2 Nb8 Re6 Rh4 Bc6 Rh3 Ndc5 d4 Nd3 d5 Nd4 d6 Bfe4 Be8 Ke1 d7 Bf5 d8Q Bf4 Kh4 Nf6 Qa2 Bg5+ Kg3 Re7 Qaa4 Rf2 Rb1 Ke2 Bf4 Rh2 Qh4 h5 Bf7 Re6 Qg8 Ne8 Rd1 Rf2 Rhh1 Rh2 Ng4 Rf2 Qh2 h4+ Kh3 Bfe4 Ne5 Rg2 Qg3 Rf2 Kg4 h3 Rhg1 h2 Rg2 h1B Rh2 Bd7 Rh7 Bf5+ Kh5 Bdc6 Qh3 Rg2
KqQ1B2B/NrN5/1b4bQ/1q1Rn2r/3bN2q/1Pq1N1n1/k4pbP/2R1B3 w - - 0 1 illegal: No possible last move
n1R2QnQ/5RbB/6q1/nNbNq2r/R3R2P/P2K3k/1b2nB1p/1b3N1r w - - 0 1 illegal: No proof kernel
2n3R1/1Qrb1q2/nnr1rR2/knQ4N/3b2Bp/2R4N/1PPq2RB/2rN3K w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 h5 Kf2 e5 g4 d5 Kg2 Kd7 f6 Kc7 f5 Kb6 f7 a5 g5 e4 g6 e3 f6 a4 g7 e2 Rh2 e1R Bc4 d3 Rh3 d4 Be3 a3 Nd2 a2 Qc1 Na6 Rb1 a1Q Qd1 Rh6 Bf2 Qa2 Qg4 Ka5 b6 Re6 b7 Bd7 b8N Ra7 Bg3 Ne7 g8R Rc7 Kh1 Bg7 f8R Nc8 Nf1 d2 f7 d1N Qe4 d3 Ne3 d2 Be2 Nc3 Qb7 d1N Bg4 Bd4 Bh2 Nb5 Rg3 Qb3 Nh3 Ndc3 Rbg1 Na4 Nd1 Nab6 Rc3 Qg5 Rg2 Qd2 Rg6 Rec6 Rfg8 Qa2 f8Q Qf7 Rf6 Rg6 Nhf2 h3 Qd6 h4 Qc5 Be8 Nd7 Re6 Ne5 Bd7 Ned3 Rec6 Nf4 Rh6 Bg1 h2 N2h3 Rg6 Nh5 Rh6 Rf1 Rhe6 Rf6 Qg6 Ne3 Nc4 Re2 Rb6 Kg2 h1R Bh2 Rc1 Nd1 Rbc6 Kh1 Qf7 Rg2 N4b6
bRB2nn1/6br/QN1NbB2/2R2Rp1/r1b5/P2PB1R1/k2q1q1n/3K2Qn w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kf7 h4 c5 a3 b5 d6 g5 d7 e5 h5 g3 h6 e4 h7 c4 f6 Ke6 f5+ Kd5 f7 c3 f6 b3 Qh5 b4 Ke2 Kc4 Nf3 e3 Qh3 g2 Nh4 g1Q Qg3 b2 Qg2 Kb3 Rh3 c2 Rf3 Ra4 Rg3 Bg7 Nc3 b1B f8R Ba2 f7 Ba6+ Ke1 e2 Nf5 Bc4 Nd6 Qa5 d8B Nd7 Re8 Nf8 Bf6 Qe3 Rb8 Qaa7 Bb2 c1N Nd5 Qd3 Nb6 Be6 Kf2 e1N Qg1 Ne2 Bbd4 Nf3 Rc1 Nh2 Ke1 Qe3 Bg2 Qd7 Bf3 Qf2+ Kd1 Bc4 Rc3+ Kb2 Bh1 b3 Be3 Kb1 Rc2 b2 Bb7 Ka1 Rc3 b1B Bc8 Be4 Rc2+ Kb1 Rc3 Qd8 d3 Ba8 Rc2 Be6 Rc5 Bac4 Rh3 Ka2 Rg3 Nd7 f8Q Qe8 Qe7 Nf8 Qb7 Qb5 Qa6 Qb4 Rh3 Ng3 Rf5 Nh1 Rg3 Nh6 Rc5 Rg8 h8R Qbb2 Rh7 Rh8 Rf5 Ng8 Rh4 Rh7 Rhf4 Ka1 Rc5 Ka2 Rff5 Qbd2+
n1R4N/q1BQ4/Bb1Q1rR1/k1r2pNr/3bB2N/1r4q1/1N1PnP1n/K3n3 w - - 0 1 legal: proof: e4 d5 exd5 b5 h4 g5 a4 gxh4 c4 bxc4 Nc3 Bd7 Nb1 Bb5 axb5 Qc8 Bd3 Qd7 Bf1 Qd8 b4 Kd7 g4 f5 b6 e5 d6 Kc6 d7 Kb5 b7 a5 g5 c5 g6 h5 g7 h3 Bg2 h4 Be4 c3 Bd5 a4 Ba2 c4 Ke2 c2 Qe1 c3 Kd3 h2 Bd5 h3 Be4 a3 Bb2 c1N+ Kc2 a2 Nf3 Nh6 g8B Qc7 d8N Ra6 Ng5 Ne2 Ndf7 Ng4 Rg1 Nd7 b8Q+ Nb6 Na3+ Ka4 b5 h1Q Qe8 h2 Nc4 Rh3 Nh8 Qg2 Qd7 h1R Rc1 a1B Kb1 Na8 b6+ Kb4 b7 Qg3 b8N Qa7 Rg2 Bc5 Nc6+ Ka4 Be6 Bb6 Ne7+ Kb4 Bf7 Nh2 Neg6 Rh5 Rc2 Ra3 Qc1 Rb3 Nh4 Rh6 Bfd5 Rf6 Qd6+ Ka4 Bb7 Kb5 Qg1 Ka4 Rc1 c2+ Ka2 Kb5+ Ba6+ Ka4 Ba3 Bad4 Nb2+ Ka5 Qe1 Rf1 Ka1 Rh1 Rb1 c1R Qd7 Rf1 Bd6 Rh1 Bc7 Rcc6 Rc1 Rc5 Bc2 e4 Qg1 e3 Be4 Qf4 Rg4 Qf3 Qg3 Qg2 Qgd6 Qg3 Qd5 Nc3 Q5d6 e2 Ngf3 e1N Rg6 Ne2 Ng5 Rcb5 Bb8 Re5 Rc8 Rc5 Bc7 Nf1 Ng2 Rh5 Nh4 Nh2
q2b1q1r/R1Q5/2n5/2nP2B1/B1QB2n1/KbQB1Pn1/2bpN1R1/1k1N1r1b w - - 0 1 illegal: No proof kernel
5Qbr/4r1Nb/1Qq1bRN1/RnqPp1Kn/3P4/Nn1Bn3/3N1b1Q/k3B3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kb4 f3 e5+ Ke3 a5 g5 h5 b3 c5 d3 a4 b6 a3 g6 c4 g7 c3 b7 h3 f4 a2 f5 c2 f6 h4 f7 h2 Ne2 h3 Nd4 Qe8 Qh5 Nf6 g8Q Qc6 Nd2 Kc3 Ne6 Ra7 Ng7 Na6 b8N Nc7 Na6 Be6 Nb4 Nb5 Qh4 Bd6 f8N Re7 Ng6 Nh5 Qf8 Bc5+ Ke2 e3 Kf3 Bg8 Kg4 e2 Kg5 e1N Rg1 Bf2 d4 h1B Bd3 h2 Rf1 Bf3 Qg3 h1B Qh2 Ng2 Ba3 c1Q Nc2 Ra7 Bb4+ Kb2 Na3 Q1c5 Ba5 Re7 b4 Nc7 b5 Ne3 b6 Nb5 b7 Bg4 b8Q B4e6 Qb6 Be4 Nh4 Beh7 Ng6 Bg1 Rf6 Bf2 Rc1 a1N Rc4 Bef7 Ra4 Nb3 Bb4 Ka1 Ra5 Qc2 Nf3 Qc1 Be1 Be6 Nd2 Q1c5
Q2r3N/R7/1nQbNrq1/qPb2bq1/nBbP3R/1NQ5/p1B3q1/1K3Nk1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 h5 g4 f5 e4 a5 b4 c5 b6 a4 b7 h3 b5 h4 g5 f3 g6 c4 g7 f4 Bd2 a3 Ba5 c3 Qd2 h2 Qf2 h3 Nd2 Rh6 Qg2 f2 Kc1 c2 Nb1 f3 Bc4 f1Q+ Be1 f2 Ne2 Qg1 Bb3 f1B Nd2 Nd7 Qf3 Rf6 Ng3 Nc5 Qc3 Bc4 Ngf1 Ne7 g8N Qa5 Nh6 Qg6 Rg1 h1Q b8Q+ Qc7 Rg4 h2 Rh4 Bf5 Qb7 Re8 Qa8 Nc8 Ra2 Qa5 e5+ Kd7 e6+ Kd6 e7 Nb6 Ra1 Rd8 e8Q Qhg2 Ba4 h1Q Nb3 Qhg1 Nf7+ Kc7 Nh8 Kd6 Ra2 Q2g5+ Bd2 Q1g2 Qec6+ Ke7 d6+ Ke6 Na1 Be7 Bb3 Nca4 Rh7 Bf8 Ra7 Be7 d7+ Bd6 Qc7 Bc5 Rb2 Bd3 Rb1 Kf5 Qcc6 Kg4 Rb2 Kh3 Ra2 Rdf8 d8N Rg8 Ne6 Rd8 Ng3 Kh2 Nf1+ Kh1 Rb2 Bf5 Ra2 Nb2 Ba4 Kg1 Nb3 Bb4 Ra1 Bc5 Ng3 Nd1 Qd3 Bd6 Nbc5 Nb2 Qe3+ Kh2 Bb4 Be7 Bb3 N2a4 Ra2 Qf2 Nf1+ Kg1 Rb2 Qg4 Qc3 Bf8 Ne4 Bc5 Ned2 Qfg3 Ba2 Q4h4 Nb3 Qgh2 Bb1 Q2h3 Kd2 c1B+ Kd1 Q4g3 Rh2 Bf4 Bc2 Qhg2 Rh4 Bfd6 Kc1 Q3g5+ Kb1 a2+
1B1K4/N2B1k2/Nb1q3b/1p1n1rQ1/RNbQ4/1nP1Pn1R/2Rr4/nb2q2R w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 g5 Kf3 f5 h4 d5 a4 b5 c3 f4 h6 b3 e6 b2 Kg4 d3 Kf5 g4 a5 g3 a6 f3 h7 d2 a7 f2 h5 d4 h6 g2 Nf3 g1B Bh3 f1N Na3 b1N Nc2 d3 Nb4 Nd7 e7 Kf7 e8R Nh2 Nd4 Na3 Ndc6 Nc2 Ra4 Bb6 Qg1 d1Q Qg5 Nf3 Bf4 d2 Bb8 Ngf6 e3 Qe7 Rd8 Qe1 Bg4 Rg8 h8R d1B h7 Nc5+ Rd7 Bb7 Rd2 Na1 Rc2 Be2 Rh3 Ncb3 Rh1 Ke8 Rh3 Qc5+ Ke6 Bh6 Rh1 Kf8 Bh3 Nd5 Kd7 Bc4 Be6 Nc7 Kd8 Qd6+ Bd7 Bc8 Rh3 Nd5+ Bc7 Rb8 a8N Rb7 Rh1 Bc5 Bb8 Bb6+ Nc7 Ra7 Ra3 Rb7 Ra8 Ra7 Rh3 Ra2 Ra4 Bb7 Na7 Bc6 Kc8 Ba8 Nca6 Kf7+ Qd8 Rg4 Qg5 Rf4 Rh1 Rf5 Rh3 Bc5 Kd8 Rb2 Re8 Bb7 h8Q Bc6 Qd4 Bb6+ Bc7 Ra2 Rh8 Ba8 Rc1 Rd2 Rc2 Ne7 Rh1 Be4 Rh3 Nd5 Rh1 Bf8 R8h4 Bh6 R4h3 Bc5 Bb8 Bed3 Rca2 Bb1 Rc2 Bb6+
2N1Q2q/r2n4/Br2q1RB/kp6/n1PBRK1B/bn2NN1n/2bPq3/qQ6 w - - 0 1 illegal: No proof kernel
Q1n3Nr/2k1nR2/6bQ/P1B3bq/1K2n1B1/1QB4b/3Pprq1/2bNnQR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 a4 h5 f4 c5 d6 e5 g5 b5 g6 h3 a5 c4 f6 b3 f7 b4 f5 h4 f6 c3 g7 e4 Bd3 c2 Bf1 e3 Bc4 b2 Bd3 b3 Ne2 h2 Rg1 h1Q Ng3 h3 Nh5 h2 Ke2 Qe8 Qf1 Be7 f8B Nc6 f7 Na7 Nc3 b1N Bb2 c1B Nd1 Bg5 Bc3 Ne7 g8Q b2 Nf6+ Kc6 d7 Kc7 Bc4 Na3 Kd3 e2 Be6 Qg2 Bg4 Nc2 Kc4 Ne1 Kb4 h1N Ra4 b1B d8Q+ Kb7 Qd5+ Kc7 Qb3 Nf2 Qg7 Ne4 Ng8 Bf5 Qh6 Nac8 Ra3 Ra6 Ra4 Rf6 Ra3 Ng6 Bc5 Nge7 f8Q Qh5 Ra1 Be6 Qe8 Rf2 Ra4 Na7 Qa8 Nac8 Kb5 Ng3 Bf5 Bb2 Rf4 Bc1 Kb4 Bd7 Bh3 Bg6 Rf7 Ne4 Qa4 Bg4 Qb3 Bf3 Bd7 Bg4 Be6 Bh3 Bd7 Na7 Bg4 Nc8
2bnnn1N/b3B3/2r2K1P/N3r2k/r1R5/Q1p1PRBr/1qR1Q1Bq/3R3n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 f5 h4 Kf7 d4 Kg6 b4 c5 b6 a5 b7 c4 d6 g3+ Kf3 g2 e3 a4 d7 a3 d5 a2 d6 c3 b5 Ra6 b6 Nf6 Qb3 Nc6 b8R Kh5 b7 g5 Bc4 Nh7 Nd2 Qb6 Bd5 Nd8 Nh3 g1Q Ba3 Qh2 Raf1 a1R Nc4 Be7 Bc5 Nf8 Qa3 Qbb2 Na5 Rc6 Rf2 Bf6 Rc2 Bd4 Rf1 Rh6 Bb4 Ba7 Ra8 Re6 b8B Re5 Bc7 Ra2 Rb8 Ra1 Rb5 Ra2 Rc5 Ra1 Rff2 Ra2 Rc4 g4+ Ke2 g3 Kd3 f3 Ng5 g2 Nf7 g1R Nh8 f4 Bc5 Qg2 Kd4 Qh2 Rf1 f2 Bg2 f3 Rd1 Kh6 h5 f1N Bb8 Kg5 h6 f2 Bc7 Kh5 Bb8 Nb7 d8R Rh1 d7 Ng3 Re8 f1N d8Q Nd2 Qb6 Qb1 Qa6 Qb2 Re6 Nd8 Rf6 Nde4 Rf3 Rg1 Bd6 Nh1 Be7 Rf1 Bh4 Nd6 Bg3 Re4+ Kd5 Rh4 Ke5 Rh3 Kf6 Rf2 Qb3 Ra4 Qa3 Rd2 Rcf4 Rd5 Qe2 Rg5 Rc4 Re5 Kg7 Ne4 Be7 Nd6 Kf6 Ne8+
1qB2B2/1b2nkB1/1r1q3P/Q1B1n2R/R1p2qR1/2q2nK1/1Q2PN2/n1brN3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 h4 f5 d4 g5 b6 a4 b7 a3 h5 f3 d6 a2 h6 f4 b5 c4 d5 Kf7 b6 Nd7 b8R Ne5 d7 Ne7 d6 Bb7 Be3 Ra6 Qc2 Qc7 Rd8 Qb8 Nh3 Rh7 Qb2 g3+ Ke1 g2 Kf2 g1N Bc5 g4 Nd2 Bg7 Rg8 Bf6 d8B Bg5 d7 g3+ Ke1 g2 Nf2 Rg7 Rh5 Rg6 Bc7 Rd6 d8Q Rd5 B7d6 Rd4 Rc1 a1N Rc3 Rd3 Ra3 Rd5 Ra4 Rd4 Nde4 Rd5 Nd3 f2+ Kd1 f3 Rg6 Nf5 Bf8 Bc1 Rg4 Ne7 Bg7 Bc6 b7 Rb6 Bf8 Qd6 b8B Bb7 Bg7 Nh3 Qb3 g1Q Qb2 Qh2 Bc7 Ng1 Bh3 Qg3 Qa8 Qf4 Qa5 Qe3 Bb8 Qd4 Ba7 Qc3 Bf8 Qb8 Bd4 f1Q+ Ne1 Rd7 Nf2 Rdd6 Rgh4 Qg2 Bc8 Qg6 Rg4 Rd7 Qab5 Qgd6 Qa5 Ra6 Bc5 Rb6 Bg7 Rd8 Bf8 Qbc7 Ned3 Qg6 Ne4 f2 Qbb5 Nd7 Bdg7 Qb8 Qb2 f1Q+ Ne1 Qff4 Ng2 Qc2+ Ke1 Nf3+ Kf2 Qc3 Ne1 Nde5 Kg2 Qc6 Nf2 Rd1 Kh3 Qcd6 Kg2 Qf5 Kg3 Qf4+
4q1k1/1K1R2r1/1q1Q2pr/1B1rPn2/1B2bPN1/5N1r/B3bRN1/2QbbnN1 w - - 0 1 illegal: No proof kernel
NqRr1Q1r/B2bnK2/n4P2/1QB5/3r3k/1Rqq3p/R1B2NPb/rB5q w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 h5 Kd5 e5 c4 a5 b4 e4 f4 d3 c5 e3 b6 d6 b7 a4 c6 e2 c7 e1R b5 d2 b6 h3 Bd3 h4 Qh5 d1Q Ra2 a3 Nc3 h2 Nh3 Re6 Be3 Ra6 Na4 Qc2 Rc1 h1Q Bc5 Ra8 Nf2 Bd7 c8B Qc3 Bc2 Na6 b8R h3 b7 Re4 Nb6 Bh6 Qe2 Qf8 Qb5 Rb4 Rb2 a2 Bb1 a1R Ra2 Bg7 Rcc2 Qd8 Rcb2 Bh6 Rb3 Bg5 Bc2 Bh4 Bb1 Bg3 Bc2 Bh2 Bb1 Kg7 f6+ Kh6 f7 Kh5 f8Q Kh4 f5 Qe8 f6 Qd8 Nc4 Ne7+ Ke4 Be8 Bf5 Bd7 Bh7 Qc7 Rd8 Rc8 b8B Qb6 Ba7 Qb8 Bd4 Ra4 Nb6 Rb4 Na8 Rbc4 Bg8 Ra4 Bc4 Rb4 Bcd3 d5+ Ke3 Ra4 Bdc5 d4+ Ke4 Rc4 Bdc2 d3+ Bd4 d2 Re8 Ng6 Kd5 d1Q Rd8 Qdd3 Re8 Bc6+ Ke6 Bd7+ Kf7 Ne7 Bdb6 Rd4 Bc5 Nf5 Re6 Ne7 Rc6 Re8 Rc8 Rd8
2kN2Qb/brqq1RNn/2NrPb1P/K3R1q1/1Q2B1bB/B3pnq1/N7/8 w - - 0 1 illegal: No proof kernel
2Rn3R/B3rQ1q/2bp2P1/PNb1R3/2R2B2/1k1rqBb1/1bN1n1r1/Q3K2r w - - 0 1 illegal: No possible last move
1N1nk1b1/1n1qN3/q1pbNn2/r4r2/nBb4P/1Q1P3R/4NQBR/bK1Q4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 a5 h4 f5 b4 g5 b6 a4 d6 c6 e5 a3 b7 a2 b5 g3 b6 g4 e6 f3 e7 f4 Qa4 g2 Kd1 f2 Kc2 f3 Qb5 g3 Qf5 Be6 Qf6 Ra5 Ne2 g1N Qd4 g2 Qa4 Na6 b8Q Nf6 b7 Nh3 Nbc3 g1N Ba3 Bg8 Rh2 Ng5 Nd5 Ne6 Bg2 f1Q Bb4 f2 Rb1 a1B Rb3 Nac5 Rbh3 Rh5 d7+ Kf7 e8N Bd6 Nec7 Rf5 Ne7 Qe8 d8Q Qd7 Qdc8 Nd8 Ne6 Ke8 Qb3 Na6 Qbc7 Nc5 b8N Nb7 Qb6 Kf7 Nc3 Qa6 Ne2 f1B Kb1 Ke8 Qd1 Qb5 Qf2 Qa6 Nc3 Bc4 d3 Ne2 Qc7 Nf4 Qcb6 N4d5 Qb5 Nb6 Ne2 Na4 Qd5 Bb5 Q5b3 Bc4
8/r3bqk1/NPB5/b3Nbq1/2P1r1R1/1pN2qnq/KBn1b1Q1/1Q2RR1R w - - 0 1 illegal: No possible last move, all moves rejected
2R2R1Q/K1r4N/1pQ2bn1/4QQ1P/1kq5/2n1BB1r/PB2bnq1/4rrnN w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 g3 f4 c6 f6 g2 f7 b3 f5 g4 h5 g3 f6 b2 Nh3 g1R Qc2 g2 Nf2 Na6 Be2 Rf1 Nc3 g1N Bf3 b1N Bb2 Bg7 f8Q Bg4 Qe8 e5+ Kc4 c5 Kb5 e4 d4 e3 f7 e2 f8Q+ Ne7 Qff5 Qb8 Kb6 e1R Qb5 Ng6 Nce4+ Ke7 Qca4 c4 Nf6 Kd6 Nh7 Nc3 Rc1 Nc5 Rh2 Bf6 Nh1 Qf8 Rf2 Nd3 Qaa5 Rc8 Ka7 Rc7 Qe8 Qg7 Qc6+ Ke7 Qab5 Rd8 Qbc5+ Rd6 Qa5 Rde6 Qab5 R6e3 d6+ Kf7 d7 Ke7 d5 Qg8 Be2 Rh3 Rf3 Nf2 d8Q+ Kf7 Qb8 Ke7 Rf4 Qg7 Qh8 Qg8 Bf3 Qg7 Qce8+ Kd6 Qa6+ Kc5 d6+ Kb4 d7 Qg8 d8B Qd5 Qac6 Qe4 Bd1 Qg2 Qee5 Be2 Rf3 Nd5 Rc2 c3 Rc1 c2 Be7+ Ka5 Bc5 Nc3 Be3+ Kb4 Qd3 Be7 Rf8 Bg5 Qdf5 Bf6 Rb1 c1Q Rc8 Bb5 Bf3 Be2 Rf8 Qc2 Rd1 Qb3 Rdd8 Qc4 Rc8 b6+
k1nq1BBq/2R1N2q/Pb4q1/BR4rr/1K6/2RPRN1n/2r1p2Q/2Qb3r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 a4 c5 g4 Kc7 a5 b5 f6 Kb7 g5 e5 f5 h5 d6 b3 g6 e4 d7 e3 f7 h3 f6 h2 g7 h4 Nh3 b2 Ra2 b4 Bc4 b3 Na3 b1Q Ng1 h3 Nb5 b2 Nc7 Na6 Nd5 Ne7 g8R Rh5 Rg3 Nb4 Ra3 Qh7 Nf3 b1Q Rc3 Qbg6 d3 e2 Rf1 h1Q Kd2 h2 a6+ Kb8 Ba2 c4 Rf2 Bg7 f8B Ra7 f7 Ka8 Ba3 Bd4 Qc1 Bb6 Rfg2 Rg5 Rh3 Rh5 Rg5 Bb7 Bb2 Nc8 Ne7 Bc6 Rb5 Nd5 Ba3 Rg5 Bb4 Nf4 Ba5 Bd5 Rg3 Nh3 Kc2 Be6 Kb2 Rc7 Ka3 Rcc5 Kb4 Rh5 Bb3 Rcg5 Ba2 Qg1 Bb3 h1R Ba2 Qd4 Bb3 Qc7 d8R Qdh8 Rd7 Qd8 Rc7 Bd5 Bh6 Be6 f8Q Bg8 Qff4 Bd5 Rc2 c3 Bf8 Bg8 Ba2 Bb3 Qd6 Ba4 Bg8 Bb3 Rg1 Ba4 Qh2 Bb3 Rg3 Ba4 Rb2 Bd1 Rb3 c2 Rbc3 Rh6 Qa1 c1R Qa3 Rc2 Qc1 Be3 Ng1 Bf2 Re3 Rhh5 Nf3 Bg1 Re6 Bd4 Re3 Bb6
5k2/NKB1q3/P3qN2/np3n1q/NP1RQRQ1/1n2r2b/4Nbrn/Q3qB2 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 cxd5 f5 exf5 a4 Qb3 axb3 Ke2 c5 Kf3 h5 Ke4 e5 d4 b5 g4 b2 f4 c4 a4 h3 d6 h2 Kd5 c3 a5 e4 g5 e3 f6 e2 g6 e1Q f7+ Kd7 f5 h4 f6 c2 g7 h3 a6 Rh6 Nc3 b1N Na4 Nc6 Ne2 Ra7 Bf4 Be7 f8Q c1N f7 Bb7 Kc5 Rh8 d5 Nh6 g8N Bc8 Qg7 Na5 f8Q Nf5 Qff6 Ke8 Qg4 Nd2 Qc3 Rh5 Nf6+ Kf8 Qe5 Rh4 Qe4 Nf3 Rb1 Qd7 Kb6 Ncb3 Rd1 Qe6 Rd4 Rh5 Rg1 h1Q Rg2 h2 Rf2 Rh3 Bg3 Nc6 d7 Nca5+ d6 Qg1 d8N h1Q Bf4 Nh2 Nc6 Re3 d7 Ra8 Kc7 Bc5 Na7 Qg3 Be5 Qh4 Rf4 Qh5 d8Q+ Qhe8 Qd7 Q8e7 Qg1 Qf3 Bd6 Qh5 Be5 Rb8 Qg4 Rb6 Qg1 Rd6 Kb8 Rc6 Bc7 Bb6 Qg4 Rc2 Qdc6 Rb2 Qc1 Ra2 Qa1 Rb2 Nc1 Rg2 Ne2 Rc3 Rd3 Bf2 Rd4 Re3 Qc6 Q6d6 Qe4 Nh4 Qgg6 Bh3 Qg4 Qde6 Ka8 Nf5 Kb8 Nc6+ Kb7 Nca5+
4n1r1/4K2P/3BB1Rq/3qrn1B/2b2R2/bnbBnQN1/PNQ1Rp2/1b4k1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Ke7 Kg3 f5 Kf4 c5 Kg5 b5 d4 c4 e4 c3 h4 g3 d6+ Ke6+ Kg6 b3 d7 c2 h5 b2 h6 f4 h7 g2 Qd2 f3 Qf4 b4 Nh3 g1B Qg3 b3 Nc3 b1N Na4 b2 Rh2 Na6 Re2 Nd2 Nf2 b1B Ba3 c1N Nb2 Nc4 Bd6 Nb3 Nh1 Nh6 Qh3+ Nf5 Ng3 Qb6 d8Q Ne3 Qc7 Rg8 Qc2 Nc7 Qh1 f2 Qf3 Ra5 Bh3 Ne8 d5+ Kd7 Kf7 g5 Bf1 g4 Bh3 Bh2 e6+ Kd8 e5 Ba6 e7+ Kd7 Bf1 Bc4 Bh3 Qd4 Bf1 Qf4 Bh3 Qh6 e6+ Kc8 Bf1 Kb7 Bh3 Bg7 Bf1 Bc3 Bh3 Nf6 e8B Kb6 Bd7 Ne8 e7 Rc5 Be6 Kb5 Bf1 Kb4 Bf4 Ra5 d6 Re5 d7 Kc5 Nh1 g3 d8R g2 Ng3 g1Q Rd4 Qh1 Re4 Rd5 Bc7 Re5 Rf4 Qg2 Ne4+ Kd4 Bd6 Nf6 e8B Bg3 Bb5 Ne8 Ba6 Qgh1 Bh3 Bh4 Bg4 Be7 Bh5 Qg2 Bc7 Ba3 Bd6 Bd5 Bd3 Bc4 Qc1 Qgg5 Qc2 Qd8 Qg4 Qa5 Qf3 Qd5 Ng3+ Re4 Qh1 Qb7+ Be7 Qd5 Nf1 Ke5 Bd6+ Kd4 Qd2 Bc2 Rc1 Bb1 Qc2 Qc6 Ng3 Qd5 Rg1 Ng2 Nf1 Nge3 Rf3 Re5 Rg6 Bcb4 Ng3 Bc3 Rd2 Ng2 Rf4+ Ke3 Rfg4 Kf3 Re2 Nfg7 Qh4 Ne3 Ke7 Kg2 Qf6 Kh2 Qf3 Kg1 Rf4 Ngf5+
1Nrk1rbr/1Rn1Rr1P/1bq1p3/6Q1/R6n/B3q3/Pnn1NQN1/R2B2K1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 g5 f4 b5 Kf2 c5 d4 b3 f6 c4 f5 g3+ Kg2 b4 d6 b2 h5 c3 d5 b3 h6 c2 h7 g4 Nd2 b1R Ndf3 b2 Bc4 Be6 Qd3 Na6 Qd4 Qb6 Bb3 Rc8 Ne1 Nh6 Rh4 Nc7 Ne2 Bg8 f7+ Kd7 f6 Nf5 Qe3 e6 Qg5 Qc6 Kf1 Be7 f8Q g2+ Kf2 g1R f7 Rf1+ Kg2 g3 Ra4 Rf4 Kh1 g2+ Kh2 g1N Ng2 Nf3+ Kh1 Ne5 Kh2 Rd8 Kg1 Kc8 d7+ Kb7 Ra5 Nc4 Ra4 Bb4 Qc5 Rb8 f8N Nh4 d8R Ba5 Re8 Rf5 Ng6 Rf8 Re7 Kc8 Ne5 Ra8 Nd7 Rb8 Rb4 Ra8 Rb7 Bb6 d6 Rb8 Ne1 Ra8 Bf4 Rd1 Bc1 b1N Ba4 Rd4 Ng2 Rdf4 Qf2 Nba3 Bb2 c1Q+ Bd1 Nc2 Ba3 R4f6 Bb4 Kd8 Ba3 Rc8 Nb8 Nb2 d7 Qe3 Ra7 Na8 Ra4 Kc7 d8R+ Qd7 Ree8 Qc6 Rd2 R6f7 Re7+ Qd7 Rd6 Kd8 Rc6 Qb7 Rcc7 Qc6 Rb7 Nc7
rR1BbR1q/k5Pq/3NN1Nb/1qP2K2/1bq3pn/r1Q1N2B/3Q4/2n2bB1 w - - 0 1 illegal: No proof kernel
8/2Q1npBb/kq1nNRb1/b1PN1n2/2n2B1K/2N2Q1P/bN5q/RB4rr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 c4 d5 e4 Kd7 b4 Kc7 h6 Kb7 e5 a5 b6 a4 h7 a3 e6 g4 e7 a2 e8N g3+ Kg2 d3 b5 d4 Ba3 d2 Ne2 d3 Nc7 f3+ Kg1 g2 Kf2 Nh6 Kg3 g1Q+ Bg2 Be6 Bb2 Nc6 Qc1 d1N Na3 f2 Nd5 f1B Nec3 Bb4 c5 d2 Nc4 Ne7 Kh4 Ba5 Be4 Nf2 Qd1 Bd3 Qf3 d1B h3 Rg8 h8B Qh2 Bg7 B1c2 Bc1 Qdd6 Bg6 Ne4 Bf4 Bb1 Nb2 Nhf5+ Kg4 Qb8 Rf1 Ned6 Bh7 Nh6+ Kh4 Bg6 Re1 Bbc2 Re5 Ra6 Rf5 Qd8 Rf6 Ra7 Rg1 a1N Rf1 Nb3 Ra1 Bgf5 Bg6 Nd2 Bh7 N2c4 Bg6 Kb8 b7 Qb6 Bh7 Ra6 Bg6 Ka7 b8N Bfe4 Nd7 Kb7 Bh7 Bg6 Nf8 Bcf5 Qd1 Bb1 Qf3 Bef5 Ne6 Ba2 Qh5 Bd3 Qf3 Nhf5+ Kg5 Qc6 b6 Raa8 Kg4 Ka6 b7 Qb6 b8Q Bh5+ Kg5 Nh4 Ncd1 Bb3 Be3 Kb5 Bg6 Bc3 Rb1 Ra1 Bf8 Ba2 Bf4 Ba5 N1c3+ Ka6 Qc7 Bf5 Re1 Rd1 Re3 Rh1 Re1 Bd3 Ra1 Rg7 Kh6 Bc2 Bh7 Rgg1 Bg7 Bd1 Bb1 Bc2 Nba4 Bh7 Nb2 Rd1 Kg5 B5g6 Kg4 Nhf5 Kg5 Nd4 Kg4 Rdg1+ Kh4 N4f5+
2b2b1n/3N1p2/QQPqBn2/Kr2P1rq/QN4R1/2n2Q2/1nb1N2b/R1Bk4 w - - 0 1 illegal: No possible last move, all moves rejected
1N1Qnrr1/4P1k1/qnN2qnR/Q2n1q1K/N2N4/Pp6/b4bRQ/qB4B1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 c5 Kf3 b5 h4 g5 d4 f5 e4 Kf7 h6 g4+ Ke2 g3 Kf3 g2 h5 b3 h7 b2 d6 c4 d7 c3 d5 b4 h6 c2 e5 Bc5 d6 Bf2 a3 Qf6 Be3 c1N Qe1 Nd3 Ne2 g1Q Nbc3 b1N Na4 Nc3 Ra2 Nd5 d8N+ Kf8 e6 Nd7 Qd2 N7b6 d7 b3 Bg2 Qga1 Qa5 Bb7 Nd4 Ne5+ Ke2 Ng6 Kf3 Ba6 N8c6 Bd3 Nb8 Bb1 e7+ Kf7 Rd2 Ba2 d8Q Qd6 Bf1 Ngf6 Bd3 Ne8 Bb1 Rg8 h8Q Qf6 h7 Rf8 Rh6 Rg8 Kg2 f3+ Kh3 f4 Kg4 Rf8 Kh5 Rg8 Rd1 Rf8 Rg1 Qf5+ Rg5 Rg8 Qe5 Qf6 h8N+ Kg7 Nb5 Bh4 Nf7 f2 Na6 f1Q Qdb8 f3 Bg1 f2 Qh2 Nd6 Nd8 Qe2+ Rg4 f1Q Nd4 Q1f3 Qc8 Bf2 N8c6 Qed3 Qc7 Raf8 Qd8 Ne8 Nab8 Qfe4 Rg5 Qa6 Rg2 Qef5+
2Q1rb1R/r2NPK1q/1p6/1B1NRNq1/Nn4B1/1P3qR1/1qb4Q/r1k2n1r w - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 Bb2 a3 Bh3 axb2 Bg2 Ra3 Bf1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 a4 g5 d4 c5 h4 f5 e4 g4 d6 c4 h6 b6 h5 g3 a5 f3 d5 c3 a6 g2 d7 f4 Ke6 c2 h7 c1R e5 f2 d6 f3 h6 Rc6 a7 Bb7 Nh3 g1Q Qd2+ Rc3 Nf4 Qc8 Kf7 Qg5 d8Q Nf6 e6 Bg7 e7 Bc6 d7 Na6 Bb5 f1R Rh5 Re8 h8R f2 h7 Ne4 Ra2 Qb8 Qc8 Ng3 d8N Qbe5 Nb7 Bf8 Nd6 Rh1 Nf5 f1Q Qh2 Rc1 Nc3 b1Q Rg2 Ka3 Nfd5 Qf3 Na4 Nf1 Rg4 Nb4 Rg3 Qh6 Rhg5 Qbb2 Rh5 Ra1 Rhg5 Rb8 a8B Qee4 Bb7 Ra8 B7a6 Qeg4 Be2 Qgh4 Bab5 Ra7 Rh5 Q6g5 Bd1 Qff2 Bg4 Qf3 Nf4 Qb1 Nd6 Qh3 Rg8 Qgh4 h8N Bd7 Ng6 Bf5 Ne5 Bc2 Nd7 Ka2 Rd5 Qb2 Nf5 Kb1 Rh8 Kc1 Re5 Qg5 Nd5 Qh7+
2Q1nk2/1r2p1b1/b1Qnq1n1/4bnPB/KRqQ3b/1N1P4/1BQ1RN2/R3r3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 c5 g4 a5 b4 h5 b6 a4 g5 a3 b7 a2 d3 c4 Kd2 h3 Kc2 c3 Kb3 h2 f5 c2 f6 h4 d6 h3 b5 e3 b6 e2 Na3 e1B Ne2 Bh4 Bg2 Nc6 b8R Ba6 b7 Ne5 Ng3 Qc8 Nb5 Bg7 d7+ Kf8 f7 Nf6 d8Q+ Ne8 Qd4 Ng6 Ne4 Ra7 Nf2 Qe6+ Ka4 Be5 Rg1 h1N Bf3 h2 Bh5 Ng3 Re1 h1N Bb2 c1Q Qc2 Nf5 Re2 Nhg3 Qc6 Ne4 Qc2 Ned6 Qc6 Kg7 f8Q+ Kh7 Qf6 Kg8 Qdc3 Rh7 Qc2 Rf7 Nd4 Kf8 Nb3 Qf4+ Qe4 Qg4 Qd4 Qf4 Rb1 a1B Ra8 Qe4 b8Q Rb7 Qbc8 Q4d5 Rb8 Qc4+ Ka5 Rd7 Rb4 Rb7 Rg1 Ng3 Qf3 Ngf5 Qfc6 Rh7 Ka4 Bg7 Ba3 Bb2 Ra1 Bc3 Qde4 Bce5 Qd4 Bhg3 Bf3 Rh1 Bh5 Re1 Bb2 Bh4
1R3nq1/1r1p3k/b1b5/q2B2Q1/Rn3Q1r/2N3RB/1P1PqnKN/B1n1q2R w - - 0 1 illegal: Other
1nk2BN1/2Pb1B1b/1Qb1q2r/1RPn1N1q/R2Q2Bp/6b1/1K4R1/1R1rrr2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kd2 h5 Kc3 d5 g4 Kd7 e4 f5 b4 a5 c6+ Kc7 g5 f3 g6 a4 e5 f2 e6 a3 b6+ Kd6 g7 a2 c7 h3 e7 Kd7 b5 f4 b7 d4+ Kb2 f3 c4 h4 b6 h2 c5 d3 Ne2 d2 Nd4 Rh6 Nc3 Qe8 Be2 f1R Nf5 f2 Bg4 Nf6 g8R Qh5 Ne4 Nd5 Rg1 h1B e8B+ Ke6 Rg2 Bd7 Rb1 Bd6 Nf6 Bg3 Qa4 a1R Qd4 d1Q Rg7 Qf3 Ng8 Qe4 Bf4 R8a3 Bd6 Rd3 Bf8 Rdd1 Rf7 Rfe1 Rg7 f1B Bg6 Ba4 Bf7+ Kd7 Rg6 Qe6 Rg5 Na6 b8Q Bd3 b7 Bdc2 Qa7 Nb8 Qb6 Bb5 Nfe7 Bh7 Nf5 Ra3 Rg7 Rf3 Rg6 Rff1 Rf6 Nc6 b8R Ba4 Ra8 Nb8 Ra6 Bb5 Ra4 Kc8 Rg6 Bd7 Rf6 Qe7 Re6 Qe8 Re3 Qe4 Rb3 Qe6 Rb5 Nf4 Rc2 Bhc6 Rg2 Nd5
Nq3Rbb/kP2R1R1/rqq1n2N/3nR2n/2BBq3/2rP3K/1pQQ2n1/1N6 w - - 0 1 illegal: No proof kernel
rR1Nb1q1/nP2Q3/5QB1/6Bq/3P1b2/1bBR3n/1Nq2Q1p/K1b1rQqk w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 b4 Kf6 d4 Kg5 Kd2 h5 Kc2 c5 Kb2 a5 e4 f5 d6 h3 e5 Kh4 e6 Kg3 g5 a4 g6 a3+ Ka2 h2 b6 h4 b5 h3 e7 c4 e8Q f3 b7 c3 b6 f4 d7 c2 g7 f2 Qf7 f3 Be2 Kg2 Bb5 f1B Nd2 f2 Nc4 Ne7 g8Q+ Ng6 Qgg7 Nc6 b8Q Na7 b7 Bd6 Bd2 c1B Nb2 Re8 Bd3 Re1 Bc3 Qg8 d8B Bd7 Qc7 Bdf4 Qf6 Be8 Nf3 Be2 Qce5 f1Q Ng5 Qf2 Ne6 Bh5 Rb1 Qc2 Ka1 a2 Q7e7 Ba4 Qe3 Bb3 Rf1 h1Q Rf3 Qf1 Qf2+ Kh1 Qde2 Qg2 Qef1+ Qg1 Bf5 h2 Rd3 Ne5 Bg6 Nf3 Na4 Ng5 Nb2 Bce3 Rbd1 Bc1 Re3 Nh3 Rdd3 Bf3 Re5 Bc6 Rc5 Be8 Rc8 Qh8 Rb8 Qh5 Bda5 Qg4 Nd8 Qh5 Q1e2 Qg2 Bd2 Qgd5 Bac3 Qg8 Qef1+ Ng1 Qg5 Bd6 Qg7 Re3 Q1e2 Nh3 Q5f6 Re4 Bg5 Bd2 Qge7 B6f4 Na4 Qd1+ Kb2 Qc2+ Ka3 Re6 Nb2 a1Q+ Kb4 Qg1 Ka3 Bc1 Qef1 Bba4 Ka2 Re1+ Ka1 Bb3
R6r/1P2pkN1/4N3/1B2bn2/1b1QB1R1/n2K1b1P/N1Nb3B/qn1Qqrn1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 g5 c4 a5 f4 d5 b4 d3+ Kd2 d4 c5 a4 h3 g3 f6 g2 b6 g4 b7 a3 c6 a2 b5 g3 b6 Bg4 c7 Bf3 c8B Kf7 f5 Nh6 Na3 Na6 b8Q Nb4 b7 Qa5 Ne2 g1B Nc3 g2 Qe5 Nc2 Bd7 Bf2 Bc6 g1N Be4 Bg7 Rh2 Raf8 Rg2 Bh4 Qf4 Bg5 Qe3 Bf4 Rg4 Bd6 Be2 Bb4 Qf4 Ne3 Nc2 Nc4+ Ke1 d2+ Kf2 Nb6 Bb5 d3 Ke3 Nc4+ Kd4 Na3 Qe5 Nb1 Kc4 Qa7 Bb2 Qf2 Qd4 Qe1 Ba3 Ba5 Bd6 Bb4 Qc1 d1Q Bh2 d2 Kd3 Na3 Qb1 Qg3 Qc1 Qde1 Qd1 Qc7 Rb1 a1B Na2 Bac3 Rb3 Nb1 Ra3 Qe5 Ra8 Na3 Qe2 d1N Qd2 Kg8 f7+ Kh7 f6+ Nf5 Qc1 Bd2 Qb1 Nc3 Qd1 Rd8 f8N+ Kg8 Ne6 Rf8 Qa1 Kf7 Qd1 Bgh6 Ng7 Ncb1 Qd6 Qa1 Qd8 Bhg5 Qd4 Kg6 f7 Bf4 Bd5 Be5 Be4 Kf6 Be8 Bgd2 Bb5 Rd8 f8N Kf7 Nfe6 Rc8 Ne3 Rc1 Nc2 Qg3 Qe2 Rf1 Qd1 Qe1
Qr2Rr1B/PqN2b2/B4Qq1/RN1R2P1/3K2n1/n2B2k1/1q1p1nq1/bB5n w - - 0 1 illegal: No possible last move, all moves rejected
1kN1bB1r/p1Nqbr2/4q2n/2N1P2R/Q1b5/3P1QK1/1r2nQ1Q/R3bB1r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 c5 g4 Kc7 b4 f5 e5 h5 g5 h3 g6 f3 g7 h2 Kg3 c4 Na3 c3 Qa4 c2 Ne2 f2 Nd4 Qd7 Nb3 Nc6 d6+ Kb8 b6 Nh6 g8N Be7 b5 Nd4 b7 Qe6 Bb2 c1B Nc5 Bd7 d3 Be8 d7 Bd2 Bc3 Be1 Bb4 h4+ Kf4 h3 d8Q+ Qc8 Qd5 Qe6 Kg3 Qd7 Qf3 Qe6 Rg1 h1R Rg2 h2 Rg1 Bf6 Ne7 Bg5 Nc8 Be7 Kh3 Ne2 Rg5 f4+ Kg2 Kc7 Rh5 Rb8 b6+ Kd8 Qg4 f3+ Kh3 Qd7 Nb5 Qe6 Nc7 Qd7 Bg2 f1Q Qf5 Qg1 Bf1 f2 Ba3 Qg8 Qfg4 Ra8 b8Q Qge6 Qb7 Rb8 Qf3 Rb7 Qgf5 Rb8 Bg2 f1R b7 Rfg1 Bf1 Rg7 Bb4 Rf7 Ba3 Rg1 Qf2 h1B Kh2 Be4 Q5f3 Bd5 Bb4 Rh1+ Kg2 Ra8 b8Q Bc4 Qbb7 Rb8 Qh3 Rf3 Qh2 Rf7 Qbf3 Rb7 Ne4 Rb8 Bd6 Rb2 Nc5 Bg5 Bf8 Bf6 Qf2g3 Be7 Qgf2 Qb6 Nb5 Qbd6 Na3 Kc7 Nb5+ Kb8 Nc7 Nf4+ Kg3 Qa6 Qfd1 Qae6 Qf3 Ne2+
q1n2b1R/3q1Q1n/2Q1p3/1B2PPR1/2n1b1Nk/2qNR3/1N3qbr/RqB3K1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 c4 Kf7 f4 Kg6 b4 d5 e4 h5 b6 a4 b5 a3 c5 g2 Kf2 a2 e5 d3 c6 h4 f5+ Kh5 c7 h3 g6 d4 g7 h2 b7 d2 b6 e6 Nf3 g1Q+ Ke2 g3 Qc2 d1N Ne1 d3+ Kf3 d2 Na3 g2 Bb5 Kh4 Qc6 Ne3 Nd3 Nf6 g8R Nbd7 b8N Bb7 c8Q Nh7 Rg5 Nc4 Qc7 Qc5 Rd1 h1B Re1 d1Q+ Re2 Qe1 Re3 Qc3 Kf2 Ba8 b7 Ndb6 Qg7 Qd7 Qf7 Nc8 Kg1 Q5b4 Qc7 Qb1 Qc6 Qe7 Nd7 Qd8 Nf6 Qd7 b8R Bb7 Kf2 g1Q+ Ke2 Be4 Ng4 Qh2+ Kf1 Qhc2 Kg1 Bg2 Qc5 Bbe4 Qc6 Q2d2 Nb2 Q2d4 Nc2 Q4a7 Ne1 Qa8 Ned3 Qbc2 Rb1 a1Q Ba4 Qa2 Ra1 Qab1 Bb5 Qf2+ Kh2 Be7 Bd2 N8b6 Qf6 Nf8 Rg6+ Kh5 Bc1 Ba3 Rd8 Nc8 Qf7 Rh6 Re8 Nh7 Reg8 Bf8 Rh8 Qe2 Rf6+ Kg5+ Kg1 Rh2 Rg6+ Kh4 Rg5 Qf2+
1NqKRBbR/3B1bN1/rP4Q1/n1b2n1R/5q1p/bR4B1/kn1b2qP/5Q2 w - - 0 1 legal: proof: f4 c5 g4 e5 a4 b5 axb5 a5 d4 cxd4 Bh3 f5 Bg2 Ra6 Bf1 Rf6 Na3 exf4 Nb1 f3 Qd3 f4 Qd1 Rf5 gxf5 Bc5 Kd2 Bd6 Ke1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 g5 e4 h5 b4 h4 b6 g4 Kb5 d3 c4 g3 b7 d2 f6 f2 f7 a4 Qe2 d1B Bh3 f1Q Nd2 g2 Nb3 f3 Nd4 f2 Nc6 a3 Nf3 g1B Ng5 a2 Ne6 Rh6 Ng7 Qg2 Qf1 Ne7 Bf5 Qe8 Kb6 Bb3 b5 Re6 Rb1 a1B Bf4+ Be5 Bg4 Nf5 Bg3 Bf4 Ra1 Be7 f8B Rh6 Ra5 Ba2 Ne5 Nc6 b8R Bd2 Bh3 Ba6 Rb7 Qa8 Rb8 Bb7 Re8 Qc8 Bg4 Nb4 Bh3 Bd5 Bg4 Bg8 Nc6+ Bf4 Nb8 Nc6 c5+ Ke5 Qd3 d5 Qf1 Kd4 e5 Kc3 e6 Kb3 Bh3 Bed6 e7 d4 Bg4 d3 Bh3 Ne5 c6 d2 c7 d1N Bg4 Bd2 Bh3 Qd7 c8R Nc6 Rcd8 B6b4 Bg4 Qe6 Kc7 Nb2 Rc8 Ba3 b6 Rh5 Rc5 Na5 Kd8 Rg5 Bh3 Rg4 Re5 Rc4 Rd5 Rc7 Bg4 Ra7 Rdc5 Ra6 Rd5 Nd4 Rh5 Qc4 Bd7 Nf5 Rc6 Qc3 Rch6 Qcc6 Rh8 Bf7 Qe2 f1Q Qf2 Qfc4 Qf1 Bgc5 Rg1 Qh1 Rg2 Qf4 Re2 Qhg2 Re3+ Kc2 Rf3 Bg8 Rd3 Baf7 Rb3 Qa8 Qc4+ Kb1 Qf1+ Ka2 Bc6 Qa7 Bd7 Nbc4 Kc8 Nb2 Rd8 Nd4 e8Q Bc4 Qf7 Nf5 Qg6 Bcf7 Re8 Qab7+ Kd8 Qc8+
1r2RqnB/1B4rq/RR1N3k/2pbN2P/4r1nQ/2R1r1B1/1nP3q1/Q1K1r3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 e4 d5 Be2 Bd6 Bd3 dxe4 Bf1 e3 Bd3 e4 Bf1 Be5 fxe5 Qd4 Na3 Qd5 Nb1 Qd8 d4 Kf8 h4 c5 b4 a5 h5 g5 e6 Kg7 e7 f5 e8Q g3 d5 g2 b6 e2 Kd2 e1R d6 e3+ Kd3 e2 Kd2 a4 d7 g4 b7 g3 b5 a3 b6 a2 Qe5+ Kh6 Rh4 f4 Nf3 g1R Ng5 g2 Qe4 f3 Na3 f2 Nc4 Qe7 d8R Nc6 b8R Ra3 b7 Be6 Re8 Re3 Nf3 Ne5 Bb2 Qh7 Rh3 Ng4 Nd6 Bd5 Qc4 Re4 Ne5 Re3 Kc1 Re4 Rb1 a1R Ra8 Ra3 b8B Rae3 Raa1 Rh1 Qd4 g1Q Bg2 f1Q Ra6 Qf8 Ba1 Qgf1 Rbb6 Rg1 Bh1 Qg2 Bc7 Rd3 Qf2 Rde3 Qh4 Ref1 Bb2 e1N Qd4 Rf7 Qa4 Rg7 Qa1 Re2 Rc3 Rf1 Qh3 Rf3 Qg3 Rfe3 Qh4 Nd3+ Kb1 Rf4 Nb7+ Qd6 Rb8 Rg6 Rc4 Qh3 Nf3 Bc6 Qa3 N8f6 Qa1 Qh2 Bd4 Nb2 Rc3 Rd8 Bg2 Qf8 Kc1 Ng8 Bh8 Rg7 Rba8 Ra4 Bg3 Qh3 Nd6 Re1+ Kd2 Qh1 Ne5 Rc4 Bd5 Rce4 Rc8 Nd1 Kc1 Qg2 Rc7 Ba8 Re7 Rb8 Re8 Bb7 Be6 Bc6 Bc8 Bd5 Bb7 Nb2+
N4n1Q/2bnqp1n/N5Q1/R1B1nB2/2PRKr1n/q1k2P1Q/1q3R2/4bR1b w - - 0 1 illegal: No possible last move, all moves rejected
5BbK/b3r3/3qB1R1/1NpnN2Q/b1P2kPQ/4b2n/B1Rb2qq/3bQ1B1 w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 Ra6 e5 Rg6 h4 Rg5 e6 dxe6 hxg5 e5 Kf2 e4 Ke2 Nd7 Ke1 Nb8 Kf2 Kd7 d4 Ke6 c4 h5 b4 f5 d5+ Ke5 d6 e3+ Kf3 a4 d7 h4 g6 h3 b6 e2 b7 e1Q g7 h2 b5 a3 b6 a2 Bg2 Nh6 g8B Na6 b8B Nb4 b7 Qg3+ Ke2 f3+ Ke3 f4+ Kd2 f2 B8d5 f1B Qe1+ Be2 Qf2 f3 Ke3 Bd1 Bc6 Rh7 Ba4 Nf7 Ba3 Ng5 Bb3 Bh6 Qe1 f2+ Bf3 f1B Nc3 Bfe2 Ba7 Qg2 Rc1 a1B Ba2 Ba4 b8Q Bed1 Nb5 Nd5+ Kd3+ Kf4 Rc2 e5 Bf8 Qe7 d8Q Bd4 Qb6 c6 Qc5 Qd6 Qe7 Nh3 Q7h4 Bf5+ Be4 Bd7 Bf5 Be6 Nf3 Bg8 Be6 Re7 Rf1 Bg1 Rff2 e4+ Kd4 e3 Ne5+ Bf3 Rfd2 h1Q Rd3 Bd1 Ra3 Bb3 Ra6 e2+ Qef2+ Qf3 Nf7 e1B Ra5 Ba4 Ra6 Bd2 Bc8 Qe6 Rb6 Nf6 Qch5 Nd5 Ra6 Ne3 Qe1 Qfg2 Bb6 Kf3 Bc5 Rc7 Ba7 Qd7+ Ke5 Qhh2+ Kf6 Nd5+ Kg6 Bhf4 Kg7 Qd8 Kh8 Re7 Bd4 c5 Bd7 Bb8 Rg6 Kf4 Be6 Qd6 Ne5 Bf2 Nc7 Ba7 Nb5 Bg3 Bg1 Bf2 Nf7 Bd4+ Ne5 B4e3
Bn1kr1Q1/nbRN4/3rnpnB/R3r2K/n1n1N2b/1NR3P1/n3QP2/6N1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra3 cxd4 Ra6 d3 Ra5 d4 Ra1 Qd5 exd5 Bg4 Bh6 Be6 Bc1 Bc8 b4 h5 c4 a5 c5 e5 d6 a4 d7+ Kd8 c6 h3 b6 h2 b7 a3 b5 e4 b6 e3 Qf3 a2 Nc3 e2 Bd2 h4 Qh3 Ra6 Qe3 h3 Nd5 Ne7 Qe6 Ng6 Bg5+ Be7 Ne3 Re8 Bh6 Bh4 Qd6 f6 Rc1 a1N Rc3 Nc2+ Kd2 e1N Nc4 Ne3 Qe6 N1c2 Na5 Nb4 Nb3 Na2 Be2 Ra5 Bf3 Re5 Ke1 d2+ Ke2 d1N Qg4 Ke7 d8N Nb2 c7 Na4 Ne6 Nc4+ Qe4 Kd7 Ng5 Ke7 Qe3 Kd7 Be4 d3+ Kf3 d2 Kg4 d1N Kh5 Ke7 Qe2 Kd7 Rc1 Ndc3 Rc2 Nb5 Rc3 Na7 Bf3 Na6 b8Q Bb7 c8R Ke7 Qa8 Nb8 Rc7+ Kd8 Bd5 R5e7 Ne4 Re6 Nf3 Rd6 Ra1 h1N Ng1 h2 Bc6 Ba6 b7 Ng3+ Kg4 Nh5 g3 Ng7 Bd5 Ne6 Kh5 h1R Bc6 Nc8 Bd5 Nc6 b8N N8a7 Nd7+ Nb8 Bb7 Nc1 Ra3 Na2 Bc6 Nab6 Ra5 Na4 Qb7 Rh2 Qb6 Rh3 Ba8 Bb7 Qd4 Rh2 Qd5 Rh1 Nh3 Rd1 Qg5 R1d5 Ng1 Rb5 Qd5 Ng5 Qf7 Rbe5 Qg8 Ne6+
2R4B/k1nbrnQ1/bpRnQ2n/B4rrn/BP2N1Q1/bK1P3n/8/4B2N w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 b6 a6 Qd6 Qb3 Qc6 Qd1 Qb7 axb7 Ke7 Nf3 Kd8 Ng1 Ke8 e4 Kd7 g4 f5 b3 a5 e5 h5 g5 c5 e6+ Kc7 e7 f3 e8Q f2+ Ke2 a4 Kd3 h3 Kc2 h2 g6 f4 g7 a3 Qg6 f3 Bh3 f1B Bf5 c4 Ra2 c3 Be4 h4 Ra1 h3 Qg2 f2 Qg5 a2 Qf3 Nh6 g8Q Na6 b8B+ Kb7 Qe5 Ba3 Bf5 Nc7 Ne2 Bd7 Qeg7 Rh7 Qfg4 Ra5 Ng3 Ba6 d6 f1R Qe6 Rd5 Bg6 Rg5 Be8 Rff5 Bb2 Ka8 Rc1 Kb7 Nh1 Ka8 Qge5 Re7 Qg7 Kb7 Ng3 h1N d3 h2 Nd2 Nf7 Rab1 Nf2 Nde4 h1N Ba1 Nh3 Bb2 Ba4 d7 N1f2 d8B Bd7 Nh1 Ka8 Qd1 Ng4 Ra1 Ngh6 Qg4 Nd5 Bg3 Nc7 Be1 Ka7 Rab1 Bdc8 Ba4 a1N+ Kd1 c2+ Kd2 Rh5 Bc3 Rhg5 Ba5 Bd7 b4 Nb3+ Kc3 Nc5 Rb2 Nb7 Kb3 Re8 Bf6 Re7 Ka2 Nbd6 Rb3 Bdc8 Rc3 Bd7 Rc6 Nce8 Rb1 Nc7 Kb3 c1N+ Kc3 Na2+ Kb3 Nc3 Rc1 Ne2 R1c4 Ng3 R4c5 Nd5 Rc8 Nc7 Rc6 Nh5 Qf8 Rg8 Bh8 Rg6 Qg7 Rgg5
q1NbQn1b/1r6/qn3bQ1/k1p1Q2b/B1P1KN2/q4b1P/q2R1B2/N1R1Q3 w - - 0 1 legal: proof: f4 d5 e4 dxe4 a4 h5 g4 b5 axb5 hxg4 Na3 e5 Nf3 a5 Nb1 e3 Ng1 e4 Ra3 Rh5 Ra1 Re5 fxe5 Ra6 Bd3 Rh6 Bf1 Rh8 Ke2 Kd7 d4 f5 c4 g5 b4 c5 b6 Kc6 b7 Kb6 d5 g3 d6 g2 h3 g4 d7 a4 b5 f4 e6 a3 e7 a2 e8Q f3+ Ke1 f2+ Ke2 g3 Nc3 Bg7 Qe5 Nf6 Qe6+ Ka5 b6 Rh7 Qd4 Bh8 Nd1 Nd5 Rb1 a1Q Rh2 Qa3 Qd3 Qe8 d8Q Nd7 b8Q Bb7 Qde7 Nf8 Qbe5 Qa8 Qe8 Bc6 b7 Nb6 b8N Rb7 Nd7 Bf6 Nf3 g1Q Nh4 g2 Ng6 Qa6 Nf4 Qh1 Qc2 g1Q Bg2 Qa2 Bf3 Qg3 Bb2 Qhg2 Bd4 Bd5 Q6e7 Bf7 Rc1 Bh5 Nb2 Bh8 Nbd3 Bf6 Ne1 f1B+ Kd1 e2+ Kd2 e3+ Kd3 Qh1 Bc6 Bg2 Ba4 Bgf3 Qb1 Bh8 Nc2 e1B Rd2 e2 Na1 Bf2 Q7e6 e1B Q6g6 Bg1 Bf2 Bh2 Rdd1 Bc3 Rd2 Bb2 Q5b8 Bbf6 Qbe5 Qgg2 Ke3 Bg3 Qbe4 Bgh4 Kd3 Bd8 Qe1 Qg3 Ke3 B4f6 Kd3 Nd5 Nb6 Qhg2 Nc8 Nb6 Nd6 Qg4 Ke3 Q2g3 Kd3 Qc8 Ke3 Qca8 Nc8 Bd1+ Ke4 Qga3 Qb2 Bde2 Qbe5 Bef3+
qQ2BkNb/nbr2Np1/r1q1r2B/1q2RRPQ/1KR1q3/1R3P2/1r3B2/5r2 w - - 0 1 illegal: Other
1Q4nb/Nq3nRr/KQn2R2/1B3pr1/8/N1nNPPr1/2nrRq2/1N1kB3 w - - 0 1 legal: proof: b4 g5 a4 b5 axb5 d6 c4 Nf6 h4 gxh4 b6 Nc6 c5 Nb8 b5 Ng8 d4 e5 c6 Bb7 cxb7 exd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 g4+ Ke4 g5 c5 g6 f5 g7 h5 e3 a5 Bd2 h3 Bc1 h4 Qc2+ d3 Ra3 a4 Nf3 h2 Bb2 h3 Ng1 d5+ Kc3 c4 Rb3 a3 Bc1 a2 Nf3 a1N Ra3 d4+ Kd2 Rh5 Ra6 Nc6 b8Q Qh4 b7 Rg5 Qb3 Nc2 b6 Rg3 Rg1 h1Q Na3 h2 Rg2 Be7 Bb2 Bf6 Bc3 Qf4 Be2 Qb1 Bb4 h1R Qb2 Rh7 Ba5 Nh6 g8R Bh8 Rg7 Ng8 Qc7 Nb8 Bb4 Ra7 Rg6 Na1 Bf1 Rh5 Bc3 Rhg5 Qb3 Nd7 b8N Ne5 Nd7 Rb7 Ra7 Nc6 Qb5 Qb3 Nde5 Qb4 Qd8 Rh7 Rag7 Qe7 Ba5 Qa7 Rf6 c3+ Kc1 c2 Kb2 c1N Be1 d2 b7 d1R b8N d3 Kc3 d2 Kc4 Qb7 Qc5 Nc2 Qcb6 Nce7 Nbc6 Nd3 Na7 Nc6 Kb5 Rc1 Rgf7 d1N Qb8 Ra1 Rg7 Rc1 Nec4 Nde5 Nb1 Nf7 Nfe5 Qf3 Nca3 Nc3+ Kc5 Rd1 Rh2 Na2 Kb5 Rd2 Bc4 Qf4 Nd3 Kf3 Rg2 Ke2 Rh2 Qbc7 Ka6 Nc3 Bb5 Kd1 Rg2 Qf3 Rh2 Qg2 f3 Qg1 Re2 Qf2 Nc8 Qe7 Na7 Qb7+
R7/qR1nKQ2/b4b2/kq2B1q1/r1pr3Q/r2N1PqR/N1P2B2/qB1r3R w - - 0 1 illegal: No possible last move, all moves rejected
Qn5N/p1R1n3/2b1RBN1/bP1r1qNq/Pb6/K1bR1Q2/2Nqq1B1/1k1q4 w - - 0 1 illegal: No possible last move, all moves rejected
1R1nR3/K2pP1NQ/2b3rN/QBB2qb1/1N2rq1q/1q1Pr3/6R1/qr1N1k2 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Nf6 b6 Bh6 b5 Na6 c5 Ng8 c6 Bf8 Ra3 Nc5 Ra1 Nb7 cxb7 Qf6 Na3 Qe7 Nb1 Qd8 Kf2 Ke7 b8R Ke6 g4 Ke5 e4 Kd4 g5 h5 e5 a5 d3 f5 g6 c5 b7 f3 g7 a4 b6 a3 e6 a2 e7 h3 Bh6 c4 Na3 h2 Bg5 f4 Bh4 c3 Rc1 a1Q Bg5 h4 Be2 c2 Qd2 h3 Qa5 Ra6 Nc4 Rh4 Ne3 Nh6 g8N Nf7 Nd1 Bh6 Rb1 c1R Rb2 Qe8 Bf1 Nd8 Bg2 Rb1 Ra2 Bg7 Nh6 Qf7 Re2 Bf6 Rb2 Qd5 Ne2+ Ke5 Rf1 h1R Ng3 Kd4 Nh5 h2 Ng7 Qb3 Rg1 Rg4 Ra8 Rh4 b8Q Bb7 Qd6+ Bd5 b7 Rh3 Qdc7 Bc6 b8N Rb6 Bh4 Bg5 Na6 Rg3 Nb4 Ra6 Kf1 f2 Ke2 f1Q+ Kd2 Re3 Bf2 f3 Rb8 Nb7 Re8 Nd8 Qf5 Rb6 Qh7 Ra6 Qa5 Rb6 Bg3 f2 Bd6 Ra6 Bf3 Qh3 Be4 f1Q Rg2 Qhf5 Bd5 Rb6 Bc4 Q1f4 Bb5 Rhe1 Bc5+ Ke5 Nc3 h1Q Nd1 Qhh4 Na2 Qbe6 Kc3 Kd5 Kb3 Re4 Ka3 R1e3 Rb4 Qg8 Ka4 Qge6 Qa8 Ke5 Ka5 Qb3 Qa6 Qf4g4 Qa7 Kf4 Qc7+ Kf3 Qa7 Rb7 Ka6 Qgf4 Qb6 Rb8 Qa5 Rb6+ Ka7 Qfe6 Rg1 Ke2 Rg4 Kf1 Rg2 Qc2 Rb3 Qef5 Nb4 Qc4 Rbb2 Qb3 Na6 Bb7 Ba4 Qbd5 Rb5 Ba8 Nb4 Rg6 Rb8 Bc6 Bb5 Qb3
1rq1r1n1/2rQ4/1b2q1p1/q1B1NnPk/2Q1R1n1/3P1Q1N/B2Q1B2/1qK3nR w - - 0 1 illegal: No extended proof kernel
K1q1b3/PB3q1k/1p1nRR1b/qq3b1Q/1P2N1QR/1n1B2R1/2n1br2/3N2B1 w - - 0 1 illegal: No proof kernel
Q1nqNrRr/B4BN1/Knb3n1/P7/p1Nk4/Q1Rq4/PQ1nq3/q2Q2r1 w - - 0 1 legal: proof: f4 a5 h4 g5 c4 gxh4 f5 d5 cxd5 e6 Rh3 exf5 Rh1 f4 b3 a4 b4 Bc5 Bb2 Bb6 Bc1 Ba5 bxa5 Be6 Bb2 Bg4 Bc1 Bc8 e4 Kd7 Ke2 Kd6 Kd3 Kc5 g4 b5 e5 f5 g5 h5 g6 b4 g7 b3 d6 b2 d7 h3 e6 h2 e7 h4 e8Q h3 Kc3 f3 Qee2 f2 Nf3 f4 Nh4 f3 Rg1 h1R Na3 b1Q Nc4 h2 Nf5 Ne7 g8N Bb7 Nf6 Nc8 Ne8 Bc6 Rg8 Rg1 Nfg7 h1Q d4+ Kd5 Bh3 f1N Be3 f2 Qb2 Qd3+ Kb4 Nd2 Rc1 f1Q Rc3 Qfe2 Bg4 Ke4 Bh5 Kd5 Bg5 Ke4 d5 Kd4 d6 Bb7 Bf7 c5+ Ka3 Bc6 Bf4 Qc7 d8Q Nd7 Qh4 Qd8 Qh3 Ndb6 d7 Rb8 Ne5 c4 Kb4 Qhg2 Bg5 Qgf1 Be7 Qfe1 Bd6 Ra8 Bb8 Q1f1 Ba7 Qff6 Rb3+ c3 Nc4 Qff1 Qa3 c2 Rc3 c1N Qb2 Qef3 Qg3 Ne2 Qh3 Nf4 Qg3 Bd5 Kb5 Qf3e2 Ka6 Ng6 Qd6 Rb8 Qf8 Bc6 Qfa3 Qc7 d8Q+ Qd6 Qe7 Qd8 Qb7 Qff6 Qa8 Qff1 Qdb3 Qa1 Qd1 Rb7 Bd5 Rf7 Be6 Rf8 Bd5 Qab1 Bf7 Qa1
QrBR1nb1/2q1p3/RN6/nB3QPK/1b3N1B/k3P2R/q3n2n/q2bR2b w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 f4 h5 c4 d5 b4 Kd7 b6 Kd6 f5 d3 b7 a4 e3 g2 Kf2 d4 Kg3 a3 Kh4 a2 b5 Kc5 f6 Kb4 c5 g3 c6 d2 b6 d3 c7 Nc6 b8Q Bg7 f7 Be6 f8R Nf6 c8B Nh7 b7 Na5 Qf3 d1B Qf6 d2 Qf3 Bc3 Qa7 Qc7 Bd3 Bg8 Rf6 Nf8 Ne2 g1N Ra6 g2 Nf4 Ne2 Bb5 g1N b8R Kb3 Rh3 Bb4 Bd3 Ka4 Na3 Kb3 Qf1 Ka4 Rb1 a1Q Nc4 Qa2 Bb2 Kb3 Qa8 Ka4 Nb6+ Kb3 Be5+ Ka3 Rh1 Nf3+ Kh3 h4 Kg4 h3 Bb5 Bdb3 Re1 d1Q Qf2 h2 Bd6 Bh7 Kh5 Qda1 Qf1 Bd1 Qh3 Bdc2 Qf5 Rg8 Nd3 Bb3 Bg3 Bd1 Nf4 Rh8 Bh4 Rg8 Rhg1 h1B Rg3 Nh2 Rf3 Rg6 Rh3 Bg8 Bb7 Rd6 Rd8 Rd2 Bc8 Rb2 Qf3 Rb3 Qa8 Qf6 Bbd7 Bd2 Nbd5 Rb8 Bb5 Qfa1 Nb6 Bb4
k1q2Qq1/2q2bB1/2pP2K1/1bnQ3R/bnq2R1r/3Rb3/2P1NR1B/1B1n2N1 w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 d5 h4 dxe4 h5 Ra6 g5 Rg6 hxg6 Bg7 Rh2 Bh6 Rh1 Bf8 Kf2 Kd7 d4 h5 b4 f5 b6 Kc6 b7 e5 g7 f3 Kg3 e3 Kh4 e4 Ba3 f2 Qd2 a4 Nc3 f4 Qd1 e2 Qd3 e1N Nge2 e3 Ng3 f3 Rh2 e2 Bc1 a3 Qe3 a2 Bh3 f1B Bd2 f2 Qe8+ Nd7 b8R Bc5 Rb5 Nd3 Qf8 e1Q Nge2 Nh6 g8Q Ng4 Rd1 a1Q Ng1 Qe5 Nce2 Ne3 Bc3 Qa2 Be6 Qe8 Rd2 Nd1 g6 Qa6 Ra5 Kb7 d5 Be3 g7 N7c5 b5 Nb4 b6 Ka8 Rd3 c6 Qgf7 Qc7 g8R Bd7 Rg3 Qec8 Rf3 Rh6 Q7g8 Rh7 Bf7 Be6 Rf4 Rh8 Kg5 h4 Kg6 h3 Rb5 Rh4 Bg7 Qa4 Rg2 Qa6 Ra5 h2 Rb5 h1Q b7+ Kb8 Ra5 Qc4 Rb5 Ka7 b8B+ Ka8 Rh2 Bfh3 Rg2 f1B Rh2 Bhg4 Rhf2 Qg2 Ra5+ Qa7 Bbe5 Qg3 Rb5 Qc7 d6 Bd5 Qh8 Qg2 Qh5 Bge6+ Qg5 Qc3 Bg8 Bb3 Bf7 Ba4 Bg8 Bd7 Ba2 Qc4 Bb1 Qgd5 Qg2 Qg8 Qd5 Bg4 Rf5 Bgh3 Bh2 Bg4 Rf7 Be6 R7f4 Rh7 Nd4 Rh4 Qg5 Nca6 Rb3 Qc3 Qe5 Bfc4 Nde2 Qd4 Rc5 Bcb5 Rd3 Qc4 Rcd5 Nc5 Qe4 Na2 Rh5 Nb4 Qd5 Bf7+
1nRnNq1Q/1Q1pq2b/2B1r3/k2B2PR/1bKqRB2/1n4n1/q1RP4/4Nb2 w - - 0 1 illegal: No possible last move
N3rQ2/2bk1P2/2n1rBBr/1R2n2B/2bpKn1r/3P1R2/NNQ2b1N/1b1r4 w - - 0 1 legal: proof: b4 f5 c4 g5 e4 fxe4 a4 b5 axb5 c6 h4 gxh4 c5 Bg7 b6 Ba6 b5 Bc8 b7 Qb6 cxb6 Bf8 Ke2 e5 Ke3 a5 g4 h5 f4 d5 f5 d4+ Kf2 a4 g5 e3+ Kf3 e4+ Kf4 e2 g6 e1B f6 h3 f7+ Kd7 g7 e3 Bc4 c5 Qb3 h4 Na3 h2 Qc2 h3 Ke4 e2 Nf3 Bf2 Rf1 e1R+ Be2 h1R Rb1 c4 Nh2 c3 Nc4 a3 Nb2 Ne7 g8B a2 Bh7 a1R Bg6 Nbc6 b8Q Ba6 b7 Ne5 b6 Rh6 d3 Bc4 Bf4 N7c6 Bg5 Bd6 Bf6 Bc7 Qf8 Rd1 Bf3 R1a6 Bfh5 Re8 b8N+ Ke6 Nf3 h2 b7 Rb6 Na6 Kd7 Nb4 Ba2 Ra1 Bb1 Ra5 Ra6 Na2 Rb6 Qa4 c2 Rb5 c1N Qc2 Ne2 b8N+ Kc8 Qc3 Nf4 Na6 Kd7 Qb3 Nd8 Qc2 Rbe6 Rg1 Ndc6 Rg3 Rhg1 Rh3 h1B Rg3 Rg2 Nh2 Rgg1+ Rf3 Rg4 Qcc5 Rh4 Qc2 Bb6 Nc7 Ba5 Na8 Bc7 Kf5 Bg2 Rh3 Bd5 Rf3 Bb3 Ke4 Bc4
1knB1Q2/R4BbN/2prQ2Q/3N2n1/6Bb/P1PbB2n/n2nR2q/1K3bn1 w - - 0 1 illegal: No possible last move
1QQB1KR1/3b1r2/r1nNN1B1/3n4/3PR3/nq5k/Pppb1q1B/b1R1q2B w - - 0 1 illegal: No possible last move, all moves rejected
1N1q4/QK1R1Q2/B2bn2R/2n2Bk1/r1P1Pp2/2BB4/1pbRqb2/3qrn1N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 Kd3 b5 Ke4 f5+ Kd5 g5 h4 d3 e4 g4 a4 b3 c4 b2 a5 f4 a6 g3 a7 d2 e6 Kf6 h6 d6 h5 g2 e7 b4 e8B b3 h7 Bh3 h6 Qe7 Nf3 g1B Bg6 Nc6 Nd4 Bd7 Bf5 Nd8 Ra2 Bf2 Nc6 Ne6 Nc3 b1N Bd3 Kg5 Bb2 Qd8 Nb8 Ba4 Ne2 Be7 Qc2 d1Q Bc3 Nd2 Ng3 Qe2 Rd1 Nf1 Nh1 b2 Rd2 Bb3 Kc6 d5 Kb7 d4 Ra6 Bb4 Rd6 Ne7 Rd7 Bd6 Qc1 Rg8 h8R Nc6 h7 Bc2 Qa1 Rg6 Rf8 Rh6 h8Q Rh5 Rf6 Na5+ Ka6 Rh4 Qe8 Nb3 Qf7 Rh3 Rh6 Re3 Qa2 Qh5 Qa5 Re1 Kb7 Qe2 Na6 Rc8 a8B Rc6 Nb8 Ra6 Qb5 Ra4 Qa5 Qh5 Be2 d3 Qa7 Qf3 Kc6 Qg4 Bb7 Qh5 Ba6 Qh2 Rd1 d2 Kb7 Qh5 Bd3 Qe2 Ra1 d1Q Rc1 Qdd2 Rd1 Qc1 Rd2 Qb1 Bb4 Qbd1 Bc3 Nbc5+
4NNb1/qnbN1n1B/2Q2N2/4Bb2/Qp3q2/1RP3Pq/R2r1rp1/Kn1B2k1 w - - 0 1 illegal: No proof kernel
3N4/4N3/RQnb1rR1/2nr2Pk/QbBP1B1p/1q1bq3/nN1pR3/1r2N2K w - - 0 1 illegal: No proof kernel
3RnB1K/rb3Br1/b5QR/N3qRp1/1N1b2P1/1n1pkq1B/1QPn4/1q3R2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 d4 cxd4 axb5 e5 h5 exf4 Kd2 Qf6 Ke1 Qg6 hxg6 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 d5+ Kf3 Ke5 e4 f5 b4 a5 g7 d3 b6 Kd4 e5 d2 b7 h4 e6 a4 e7 a3 e8B h3 b5 h2 b6 a2 Bg2 Nd7 b8R Ra7 b7 Bc5 Ba3 Rh7 Qc1 Ngf6 g8Q Rg7 Bf7 Ne8 Bh3 Bb6 Qh7 Nc5 Qg6 Nb3 Nc3 Bc5 Rb1 a1Q Na2 Qb2 Nb4 d1Q+ Kf2 f3 Ne2+ Ke4+ Nd4 Qc3 Rf1 h1B Qb2 Qdd3 Kg3 Ke3 Ndc6 f2 Na5 d4 Ra8 Qe4 b8R d3 Rb6 Ba6 Rd8 Bd4 Rb5 Bf3 Rh1 Qa8 Rbf1 Bfb7 Rbd5 f4+ Kg2 Kd2 Kf3 Qc5 Ke4 f3 Kf5 Ke3 Ke6 Qc7 Rf5 Qh2 Ke7 Qe5+ Kf8 Qab8 Rb1 f1Q Rh2 Qg2 Rf1 f2 Rhh1 Qf3 Rh2 Rh7 Kg8 Rg7+ Kh8 Qbd6 Bg2 Qb6 Rh6 Qbb5 Bh3 Qb6 Ra1 f1N Rc1 Nfd2 Rf1 Qbb5 Nd5+ Ke2 Qc3 Qa4 Bf8 Qa2 Nb4 Ke3 Qb2 Qb1
2n5/nQ3n1B/q3B2q/4Q1pK/3QrNp1/B2Nq1b1/R2b1RPP/b2Q2rk w - - 0 1 illegal: No proof kernel
k1nNRnQb/rN3r2/1q5r/3p1BQ1/1RP1bR2/2Bp4/5bPq/2KqR2B w - - 0 1 illegal: Other
2kBb3/6RN/1r1qN3/1K1pN1P1/1Qp3q1/1bP2n2/1r1N2Qb/nq1RrBQ1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 c5 g4 h5 f4 a5 b4 e3 Kd3 e2 Kc4 e1R c3 a4 e6 h3 e7 h2 b6 a3 b5 a2 f5 h4 g5 h3 b7 Nc6 b8N Nb4 f6 Ra6 b6 Nc2 b7 Rc6 Qf3 Nh6 Qf4 Ng4 Na6 Ne5+ Kb5 Nf3 b8Q d5 f7+ Kd7 e8N c4 Qb6 Bd6 f8Q Bb7 Qh6 Kc8 Qfd4 Bc7 Nd2 Qd6 Rb1 a1Q Nf6 Rd8 Rb2 Qb1 Nc5 Na1 Nh7 Qf5 Rb4 Qg4 Ba3 Rde8 Ra4 R8e2 Ne6 Rg2 Ra7 Ba6+ Ka5 Bb5 Bb4 Bb8 Rg7 Ba4 Qh4 Bb3 Kb5 Rge2 Qhf2 Bc7 Nb1 Rb2 Qg2 Bb8 Ba5 Bc7 Ne2 Bb8 Rg1 h1B Nd2 h2 Nc1 Bc7 Nd3 Bb8 Qg3 Bg2 Qdc5 h1Q Qb4 Bh3 Qg2 Re2 Nec5 Ba7 Ne5 Re4 Bd3 Qh5 Qa4 Bd7 Rb1 Be8 Qb4 Qg4 Ne6 Qd1 Qd4 Re1 Bd8 Qc2 Rd1 Qb1 Bf1 Bb6 Qd3 Bg1 Qd4 Bh2 Qdg1 Rb6+
1Nk2bqr/BbB3Q1/K4Q1n/1p6/pr2bR2/1P1R4/Q1PN2n1/2rBqQn1 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Qa5 a4 Qxa4 d3 Qa2 d4 cxd4 Ke2 Kd8 Kd3 g5 h4 d5 f4 e5 b3 a5 h6 b6 h5 g4 f6 a4 f5 g3 f7 g2 f6 Ra7 h7 Re7 h6 Ra7 Be2 Qb2 Rh3 Rb7 Nf3 g1N Be3 Na6 Qf1 Nc7 Bd1 Ne6 Nbd2 Rb8 Rh4 Bb7 Rf4 Kc8 Rb1 Qa3 Rc1 Qe7 Ra1 Qe8 Rc1 Bc5 f8Q Qd8 Qg7 Bf8 f7 Qg5 Ne4 Qg4 Nf6 e4+ Kd2 d3 Kc3 d4+ Kc4 d2 Kb5 d3 Nd7 Qg6 Qb2 Qg4 Qa2 Qg2 Bf2 e3 Ra1 Be4 Ka6 e2 Rb1 Rb7 Nb8 e1Q Bd4 Qg6 Be5 Qg4 Bc7 Qg7 Be2 d1B Nd2 Qg6 Bg4 Bdf3 Rd1 Ne7 Bh5 Nf5 Bg4 Qg8 Bh5 Bg7 f8B Bh1 Bc5 Bf8 Rf3 Nf4 Bd4 b5 Ba7 Ng2 Rf4 Rb6+ Ka5 Rg6 Bg4 Rg7 Ka6 Rd7 Bh5 Rd4 Bf3 Rb4 Bg4 Qc4 Be2 Rg8 h8Q Qd5 h7 Nh6 Qg7 Rh8 Nc4 d2 Bh5 Rg8 h8Q Qf7 Qf6 Qh7 Qhg7 Rh8 Ra1 d1R Nd2 Rc1 Bd1 Qg6 Bg4+ Bf5 Nf3 Rd1 Qf7 Qg8 Q7g7 Ne3 Bh5 Rb1 Bg4 Rb2 Rd1 Rb1 Rdd4 Rc1 Nd2 Bc6 Bh5 Ng2 Bd1 Bfe4 Rd3 Bb7+
1qRR4/2rn1NbB/1RQ3Q1/1p1rP1QP/q3N3/2b1pKq1/1B3Q1r/nk5b w - - 0 1 illegal: No possible last move
3rnK2/1R1qR2Q/r1N1QQqn/Pb2pB2/6Rb/Pp2R3/4qB2/1n1kN2b w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 d4 c5 g4 b5 f4 h5 Kg6 e5 Kf7 h3 g5 h4 f5 e3 d6 h2 d5 h3 f6 e2 d7 e1Q g6 c4 d6 c3 g7 c2 a3+ Kb3 Be3 b4 Bf2 Qc3 Qg4 c1N Qe6+ Kc2 Nd2 b3 Ngf3 Rh5 Nd4+ Kd1 Nc6 Qd3 Nf3 Rh6 Ne1 Qe2 Rg1 h1Q Rg4 h2 Bh3 Na6 Ra2 Qb6 d8R Qd5 d7 h1B Re8 Be7 d8R Bd7 Rb8 Nc7 Rb7 Rd8 Rc2 Qba6 Rc3 Na2 Rf3 Nc3 Re3 Bf8 Re7 Ne8 Rd4+ Qad3 Bf5 Nb1 Rg4 Q5e4 Nb4 Bb5 Nc6 Rh3 Red7 Bc5 Re7 Qd7 Kf8 Nh6 g8Q Ba7 f7 Rf3 Bg6 Rf6 Qh7 Qg2 Bf5 Qg1 Rh3 Be3 Rhg3 Bg5 Rf3 Bh4 Re3 Nd6+ Kg7 Qg2 f8Q Qe4 Qff7 Ne8+ Kf8 Q4d3 Qd5 Rd6 Qde6 Qe4 Qff6 Qg2 Nd4 Ra6 Nc6 Qg1 Rf4 Qg5 Rg4 Qg6
Nn2rr2/2Kb1b2/R1r2qPB/3Np1n1/Bpqb4/2Q1N1Q1/2N1PQ2/3R2qk w - - 0 1 illegal: No possible last move, all moves rejected
RrB1n2n/2Q2qn1/1N3QPk/2p4p/1KB1Q1bq/2QR4/qN1P3r/r1B1b3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 h5 b4 a5 e4 f5 b6 Kf7 g5 Kg7 b5 a4 g6 f3 d6 h3 e5 a3 d7 h2 e6 f2+ Ke2 a2 Kd3 c6 Kc3 f4 e7 f3 e8B Be7 b7 Nf6 b6 Ra3+ Qb3 Kh6 Bc4 f1N Nh3 f2 Nf4 Ng3 Nd3 f1Q Nb2 Nf5 Rg1 h1Q Rg3 Qh4 Rd3 Ng7 Bef7 Qff4 Bfe6 Qg8 d8Q Nbd7 b8Q Ne5 b7 Nf7 Qe5 Nfe8 b8Q Qf3 Bh3 Bg4 Qbc7 Bd6 Qe6 Bg3 Qe4 Be1 Kb4 Qf5 Nc3 Qd7 Rb1 a1R Nca4 Qd5 Qc3 Qh7 Bb5 Qa2 Nb6 Rg8 Ba6 Nh8 Bc4 Rf8 Qdd6 Ra8 Qde7 Rf2 Q7e6 Rb8 Qef6 Bf3 Bc8 Bg4 Nd1 Qg8 Rb3 Qe6 Ra3 Qf7 Nb2 Rh2 Ra8 c5+
3brN1Q/3nB3/1b4pn/1RpNB1Bq/4B1kn/1RP3r1/q1P1Rb2/2K1Q2r w - - 0 1 illegal: No extended proof kernel
rB1k3N/4bR2/Bn3pKQ/Pb5Q/q1N5/2q2Rr1/PrQ1bqp1/B1nB4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 d5 cxd5 exf4 Kf2 g5 d4 b5 e4 c5 h4 f3 Kg3 b4 e5 b3 d6 f2 d7+ Ke7 h5 c4 h6 c3 h7 c2 e6 f6 d5 b2 Ba6 f1R Nd2 b1B Bb2 c1Q Nc4 Rf4 Qc2 Nc6 Nh3 Rf2 Nf4 Qe8 Ng6+ Kd8 Rh5 Nb4 e7+ Kc7 Bd4 Nd3 d8B+ Kd7 d6 Re2 Qb3 Rb2 Bc7 Qc3 Bb8 Bb7 Rh2 Bc6 Qc2 Bb5 Rf2 Nc1+ Rf3 Qc8 e8B+ Kd8 d7 Ne7 Bf7 Nd5 Be6 Be7 Bde5 Rf8 h8Q Nb6 Qh6 Qc6 Nh8 Rf7 Bf5 Rh7 Bd3 Qe4 Be2 Qed4 Bd1 Qf4+ Kg2 g3 Kh3 g4+ Kh4 g2 Kh5 g1Q Kg6 g3 Bd4 g2 Bde5 Bb4 Qh5 Qf2 Bd4 Ke7 d8Q+ Ke6 Qh4 Rb3 Rg3 Nd7 Rf3 Qce1 Nf7 Bc6 Qh8 Ke7 Qf5 Bd3 Na3 Be2 Rb1 Ba4 Bb2 Qc3 Ba1 Bc6 Qhg5 Rh3 Qhh5 Qe4 Nh8 Kd8 Qf4 Bf8 Qd2 Qa4 Qdh6 Rb5 Rb2 Bd6 Rd2 Rb2 Nc4 Nb6 Qc2 Bd7 Rd4 Bb5 Re4 Ba3 Re7 Bc5 Rg7 Be7 Rf7 Rg3+
8/b1RQBnR1/rqN1PrNQ/R2p1r2/pq1R4/nQPK4/2Bb2b1/2k4n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kf6 e4 Ke5 h4 a5 c3 g5 h6 f5 h5 d5 b6 g4 b5 g3 b7 a4 h7 g2 h6 d3 b6 f3 Qe2 Kf4 e5 f2 Nf3 g1B Na3 Ra6 Nc4 Nc6 b8R Nd4 b7 Qb6 Na5 Nc2 Nc6 Na3 Ra8 Bc5 Bh3 f1Q b8Q Bd6 Bb2 Qb1 Nh4 Be6 Bc1 Q1b4 Qf2+ Ke4 Ng6 f4 Qb7 f3 Qd7 Bg4 e6 Bc7 Qf1 f2 Qd1 f1R Qb3 Bf3 Rc8 Bd4 Rg1 Bg2 Bf5+ Kf3 Bb2 Bg3 Rd1 Be1+ Kc1 Ke3 Rc7 Ke2 Be4 Rf6 Bf5 Nc4 Ba3 d2+ Kc2 Bdf2 Rb1 d1N Be4 Qf8 Be7 Bd2 Rc1 Bfe3 Ra1 Nf2 Rad1 Nh1 Bf5 Be1 Rd4 B1d2 Be4 Bf1 Rg3 Bg2 Rg5 Ke1 Kd3 Na3 Rg4 Rf5 Rg3 Nf6 Rg5 Ne8 Rg3 Rg8 h8R Nd6 h7 Nf7 Rg4 Rg7 Rg8 Qfb8 h8Q Rh7 Rgc8 Rh6 Ra7 Qb4 Rcc7 Q8b6 Ra8 Rh4 Rg5 Rhf4 Qh6 Rf2 Nge5 Rf6 Rg7 R2f5 Ng6 Bf2 Qb2 Kd1 Qb3+ Kc1 Raa7 Qb8 Ra8 Rb6 Ra5 Ra6 Bf3 Q8b7 Bd1 Q7b6 Bc2 Qb7 Re4 Ba7 Rd4 Q7b6
N2n2k1/2q2N2/2nqP2P/1QB1b2B/Q1bnpr2/R3rN2/2p3rR/B1KBq3 w - - 0 1 illegal: No proof kernel
4Rn2/bB3rk1/2P4n/1nQ3BK/Q1N1b1Rr/1p1QqP2/3Q3p/1qRNb2q w - - 0 1 illegal: No possible last move, all moves rejected
1q2RN1Q/n2Q3N/1bp2rN1/2qb2rP/pP2KQ2/1b2nr1q/RB4B1/1N4k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 b6 f5 d6 g5 h5 a5 e5 a4 e6 g3+ Kf3 g4+ Kg2 Nh6 e7 Ra6 e8N Nc6 b7 Na7 b8Q Be6 d7 Bd5+ Qf3 Rf6 d3 c6 Ra2 Bc5 Qd6 Qb8 d8N Bb6 Rf2 Rhf8 Nh3 R8f7 Kg1 g2 Qd7 Rf8 Kh2 g1R Bg2 R8f7 Qg3 f3 Ra2 f4 Bb2+ Ke3 d4 Nf5 Ne6 Ke2 Nf8 f2 Qh4 f3+ Nf4+ Ke3 Qg3 f1B N4g6 Bfc4 Qe5+ Kf2 Qf4 g3+ Kh3 Qe5 Kg4 Bb3 Kg5 Qb8 Rh2 Re6 Nf6 Ne3 N6h7 Ref6 Rh3 Rf1 Rh2 Kg1 Rh4 f2 Rh2 Bf3 d5 Rg7 d6 Bfd5 Rh4 Rc1 Rh2 f1Q Rh4 Qf3 Rh3 Rc3 Rh1+ Kf2 Re1 Rg8 Re2+ Kg1 Re1+ Nf1 Re8 Ne3 Qb7 Rg7 d7 Rd3 d8Q Qf1 Bh1 Qh3 Qbd7 g2 Q8c8 Nc2 Qcd8 Rf3 Q8c8 Ne3 Qcd8 Kf2 Q8c8 g1Q+ Bg2 Qc1 Qcd8 Kg1 Q8c8 Re6 Qcd8 Rg8 Qdf6 Qc5 Qh8 Ng4 Kf5 Rd6 Qdg7 Ne3+ Ke5 Rf6+ Qc7 Bf7+ Ke4 Rg7 Qd7 Bg8 Ne5 Rg5 Neg6 Bgd5+
k4qnN/b1BQ1NR1/1P4q1/1PRb4/5K1R/Nq1r3R/1Q2p1pr/2n2Bbn w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 e5 h4 a5 b4 g5 d4 c5 f4 Kc7 f5 Kb7 h5 c4 d6 c3 f6 a4 d5 c2 d7 a3 d6 g3 f7 g2 h6 g4 h7 a2 Qd5+ Nc6 Rh4 g3 Nh3 g1B+ Nf2 g2 Rh2 Ra3+ Qb3 Nce7 Rh4 Ka8 b6 Bb7 b5 Bd5 Bd2 c1N Be1 Qc8 d8Q Bg7 Qc7 Qf8 d7 Bf6 d8N Bg7 Qd7 Nf5+ Kd2 Bf6 Ng4 Ng3 Nh6 Nh1 Qb2 Be7 Bg3 Bd6 Rh3 Bb8 Bf4 Rg3 Na3 Ba7 Rb1 a1Q Rh4 Qe8 f8R Qa2 Rf7 Qf8 Rg7 Qb3 Ndf7 Rh3 Bg5 Rg3 Bd8 Rh3 Bc7 e3+ Ke1 e2 Kd2 e4 Ra1 Na2 Rc1 Rf3 Rc3 e3+ Kd3 e1Q Rh3 Be6 Ke4 e2 Rc5 Rd3 Kf4 Qb1 Rh4 Nc1 Rh3 Nf6 Rh4 Bd5 Rh3 Rg8 h8R Q1c2 Rhh7 Qb1 Nh8 Q1c2 Ng6 Rh8 Nf7 Ng8 R7h4 Rh6 Nh8 Rh7 Rhg4 Rh4 Rf3 Rh2 Rh3 Re3 Rgh4 Qg6 Be5 Rg3 Bc7 Rd3
1N2N2r/1B2bn2/npKQq2q/B1r1R3/4RpQb/2P2b2/1P3Q1r/kn1NN3 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 d4 exf4 a4 cxd4 a5 b6 a6 Qg5 Kf2 Qd5 Ke1 Qb7 axb7 Kd8 Bh3 Ke7 Bf1 Ke8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 h4 g5 e3 f5+ Kd3 Kd5 c3 a4 h6 f3 h7 f4 h5 a3 h6 g4 Rh4 g3 Bd2 a2 Be2 f2 Rh2 f1N Na3 g2 Nc4 Ra5 Nf3 g1B Ne1 Na6 b8N Bf2 e4+ Kc5 e5 d5 e6 Be7 Bg4 Bfh4 Ne3 Bb7 Re2 Bc6 Rb1 a1Q Bf3 Qa2 Qc2 Bb7 Nd1 Ba8 Bc1 Nd2 Re4 Rb5 Ra1 Nb1 Be3 Bc6 Qf2 Ba8 Ke2 Kc4 Re5 Kb3 Kd3 Rc5 Bh1 Bd8 e7 Bc6 e8N Bde7 Ke2 d3+ Kf3 d2 Bg2 Ra5 Bc5 d4+ Re4 d3 Bb4 Rc5 Ba5 Qa4 Bh1 Qc4 Ra4 Qd5 Rb4+ Ka2 Rb5 Qe6 Bg2 Rc4 Re5 Ka1 Bh1 Rc5 Bg2 Nf6 Bh1 Ng4 Bg2 Rf8 h8Q Bd5 h7 Nh6 Qg7 Nf7 Qg4 Rh8 Ne3 d1R Bh1 Rc1 Nd1 d2 Bg2 Rf8 h8Q Rc2 Qf6 Rh8 Bh1 Qf5 Qd6 Qe6 Ke2 Qh6 Kd3 Ba8 Kd4 Bb7 Re2 Bf3 R2e4 Rb5 Ne3 d1Q+ Kc4 Qc1 Nd1 Qe3 Bg2 Rb3 Kd5 Rb5+ Kc6 Qe2 Qc5 Qc4 Bh1 Rh2 Bg2 Qce6 Qf2 Nc7 Bf1 Rd5 Ba6 Rb5 Bc8 Na6 Bb7 Rc5+
1bb2R2/Q2N1n2/BpPBB1kN/1p3q1R/1R2b1Br/6K1/1Q2P1n1/n1q1qr2 w - - 0 1 legal: proof: f4 h5 g4 e5 gxh5 c5 fxe5 a6 d4 cxd4 b4 Rh6 b5 axb5 Nd2 Rh7 Nb1 Rh8 Kf2 g5 h4 f5 c4 Kf7 a4 d5 e6+ Kg7 h6+ Kf6 c5 b6 e7 g4 e8B f4 h5 d3 a5 f3 c6 d4 h7 d2 a6 d3 h6 Kg5 a7 Kf5 Kg3 f2 Nc3 Qd7 Ba3 Na6 Na4 Nc5 Bh3 f1B Bf7 Bg2 Nf3 Nb3 Ng5 Be4 Rb1 Na1 Be6+ Kg6 Bd6 Qf7 Rh2 Qf5 Nc5 Rb8 Qa4 d1Q a8B d2 Qa6 Qc1 Qa7 d1N Nd7 Ne3 Bb7 Ng2 Nf7 Be7 Ba6 Bd8 Rb3 Bc7 Rh1 Rb7 Rb4 Bb8 Nf6 Re7 Nd7 Re8 Rd1 Rf8 Rd5 Qf6 Rh5 Qfg5 Nd8 Rf1 Nf7 Qf5 Rb2 Nf6 Rb3 Ne8 Rb4 Rg8 h8Q Rf8 Qb2 Rh8 Bf4 Nd6 h7 Qe1+ Kh2 Qc1 Nh6 Nf7 Kg3 Ne1 Kh4 g3 Bg4 g2 Bd6 g1Q Kh3 Ng2 Kg3 Rf8 h8R Qgf2+ Kh2 Qfe1 Kh3 Rg8 Kh2 Rg7 Rf8 Rh7 Rh4 Nd8 Ng8 Qed2 Kg3 Nf7 Rh1 Rh5 Rh3 Rg5 Rh8 Rh5 Rh7 Rh4 Rh5 Qdd1 Nh6 Qe1#
4K2n/4B1qR/PQ1bPN1r/Bn3R1q/1rr1n2p/qk2pB1b/RN4R1/6Q1 w - - 0 1 illegal: No proof kernel
Qrnqb1N1/b2R1QqP/2nR1n2/r3P1q1/k3pBrN/5p1Q/3B2B1/2K4B w - - 0 1 illegal: No proof kernel
1n6/Bq1NRQ1P/n3p1Qb/1B2r2r/1B1pqBK1/2Nr3P/b1k2qRb/6Q1 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Ke2 Kf7 b4 Ke6 f4 Kd5 c3 Kc4 h3 a5 f5 g5 f6 d5 b6 e3 Kf3+ e2 b7 a4 b5 a3 h6 a2 f7 d3 b6 e1Q Ba3 d4 Bb4 Be6 Rh2 Qc7 Rg2 Na6 b8B Nf6 b7 Nd7 Ba7 Re8 b8B Bd5+ Kg4 Qb7 Bg3 Qe4+ Bf4 Ndb8 Nf3 Rh7 Qc1 Kb3 c4 d2 c5 d1R c6 Rd3 c7 Bg7 f8Q Bg8 Kh5 g4 c8Q g3 Qcf5 Bd5 Kg4 Bc4 Re2 g2 Ne5 g1B Rg2 Bh2 Nd7 Bf7 Be2 Rh8 Qe1 Kc2 Nc3 Rh7 Rb1 a1Q Qg1 Ba2 Q8f7 Bf8 Rf1 Qe1 Q5g6 Qf2 Ra1 e6 Rb1 Rc8 Rb3 Rc5 Ra3 Rg7 h7 Re5 Ra5 Rg8 Rc5 Bh6 Rc7 Rf3 Bb5 Rd3 Rc8 Rf8 Re8 Rh5 Re7 Re5 Qfg7 Rff5 Q7f7 Rh5
1Q1Q4/2n2RP1/qq1BNb2/3br2Q/kpqp1K2/3b1RR1/2N1rP2/n1n1Q2B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 b5 Kf3 d5 g4 Kd7 a4 Kc6 c4 h5 f6 e5 c5 b3 f7 b2 a5 e4+ Kg3 h4+ Kf4 e3 g6 b4 g5 e2 g7 Kb5 g6 d3 a6 e1N c6 h3 c7 h2 a7 d4 Be2 Na6 Kg3 Be7 f8R Nf6 g8Q Be6 c8Q Ne4+ Kf4 Nc2 g7 Nec5 Ra2 Bf6 Nf3 Nb3 Qc3 Nca1 Rg1 h1Q Rf7 Bd5 Rg3 Rh5 Ra3 Qf1 Qce1 Re5 Ng5 Nc7 Bf3 d2 Bh1 Qc4 Qh5 d1Q Ne6 Qdd3 Rf3 Qb8 Qd8 Qb6 Be3 Rc8 a8Q Nc1 Qb8 Qe2 Rd3 Ka4 Na3 b1B Nc2 Qca6 Rc3 Qec4 Bd2 Re2 Rg3 Re5 Rcf3 Re2 Kg4 Re5 Bf4 Re2 Bd6 Re5 Qf8 Re8 Kf4 Re7 Qfd8 Re2 Ne3 Bd3 Nc2 Re8 Nf8 R8e3 Ne6 Re5
Q2R1Qb1/n4P2/1pRP3r/kN1p1Nr1/q1n4K/q2bB3/1b1qr1B1/1N2Q2Q w - - 0 1 illegal: No proof kernel
qNk1B3/r2nP2N/3q4/q5QQ/prN2PpK/5bnR/RbR1rB2/R3b3 w - - 0 1 illegal: No proof kernel
nQr5/QNRnP1q1/B6R/1qb1qp1K/p2B1b2/3b4/2PN2rN/B1k1Nr2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 h4 Ke4 b4 f5+ Kh3 a5 b6 g5 b7 d5 h6 f3 h7 f2 h5 d3 h6 d4 b5 d2 b6 Ke3 Bb2 d3 Nf3 Ne7 Nh2 g4+ Kh4 g3 Kh5 Rg8 h8N g2 h7 g1B Ng6 Qe8 h8B Qb5 Nf4 Nd7 b8Q Ba6 b7 Bh6 Bbf6 Nd5 Ng2+ Ke4 e3 Bf4 Bd4 Nc7 Ne1 Rg2 Ra4 Qe5 Rc4 a4 Qg4 d1R Qg7 d2 Qh7 Ne8 Rc7 Bd3 Be2 f1Q Ba1 Qd5 Bhd4 Qe5 Qe7 Bf2 Qc5 Rc1 Qca7 Qg1 Bf1 d1Q+ Be2 Qd2 Bf1 Qda5 Nd2+ Kd5 Be2 Qb5 e4+ Kd6 Qd8 Rc8 b8N Ke6 Na6 Rd1 Rb7 Nc7 Nc5+ Kd6 Bf1 Na8 Rc7 B2e3 Nb7+ Ke6 Bdc3 Bc5 Qf8 Qgd4 Be2 Qg7 e5 Kd5 e6 Qde5 e7 Rb1 Bd4 Rd1 Ndf1 Kc4 Nd2+ Kb4 Qf6 Ka3 Qfb6 Rc1 Qb8 Rd1 Q6a7 Ka2 Ne4 Kb1 Nd2+ Kc1 Bf1 Be4 Be2 Qb4 Bc4 Bd3 Ba6 Qb5 Rg1 Rf2 Rg6 Re2 Rh6 Rg2 Nef3 Rdg1 Ne1 Rf1
2Nb3B/1rB1pk2/b2RN3/KQQq2nq/4qP2/PQn3R1/1Q1p1rBn/3r4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 g5 f4 b5 h4 d5 c4 g4 h6 g3 a3 g2 h7 d3 f6 b3 Kc3 d2 Kb4 d4 c5 b2 h5 d3 c6 Ra7 c7 Qd5 h6 Bg7 Rh3 Ba6 c8Q+ Kf7 Nf3 g1R Rg3 Nd7 Bg2 Nf8 Qb3 d1Q Ka5 b4+ Qc5 Ne6 Be3 Rb7 Nd4 Ng5 Nd2 b1Q Ne6 Qh5 Nc4 Rd1 Nb6 d2 Nc8 Qbe4 Rc1 Kg6 f7 Be5 f8Q Nf6 Rb1 Ng4 Qe8+ Kf6 Bf2 Nh2 Qeb5 Kf7 Be3 Rg8 h8B Bb8 h7 Bc7+ Qcb6 Rg6 Bed4 Rg8 Bde5 Bd8 Bc7 Rg6 Q6c5 Rh6 Qbe3 b3 Rc1 b2 Qeb3 b1N Rc4 Qdd3 Rd4 Rg6 Rd6 Qdd5 Ba1 Nc3 h8Q Ngf3 Qhd4 Rg4 Qdb4 Ng5 Qb2 Rh4 Q4b3 Rh3 Rg4 Re3 Rg3 Re2 Qc1 Na2 Bh8 Nc3 Qcb2 Rf2
B1r1r2Q/1b2prb1/1R3n1p/q2q2P1/1Q1RRPN1/1Q2n2k/R1N3b1/3K1nB1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 b4 Kf6 f4 a5 d4 c5 b6 c4 d6 e3 g5+ Kf5 d5 c3 d7 h6 b7 h3 b5 h2 d6 c2 b6 e2 Nd2 Kg4 Nh3 a4 Ra2 a3 Bg2 Bg7 Nc4 Nf6 Be3 c1R Bg1 Na6 b8R Rf8 b7 Nc5 Nf2+ Kg3 Kd2 e1N Ng4 Nc2 Nce3 Rf7 Be4 Qg8 d8R Kh3 d7 Nb3+ Ke2 Nd2 Bd5 Na1 Qb3 Nf1 Bf3 Rc5 Kd1 Nc2 Bc6 Ne1 Qb4 Ng2 Nc2 Rc3 Rf8 Rc4 d8Q Rc5 Qdd4 Rc4 Rd8 Nge3+ Ke1 Rc5 Qdc3 Rc4 Rd4 Qd8 Qcb3 Qd5 Rb2 a2 Ke2 a1Q Ra2 Bf5 Re4 Bh7 Rd8 Bf5 b8Q Bc8 Rd6 Bb7 Qh8 Qae5 Rd8 Qa5 Rdd4 Qed5 Ke1 Re8 Ke2 Ba6 Ba8 Rcc8+ Q3c4 Nf5 Kd1 Bb7 Qcb3+ Kg2 Be3 Kh3 Rg1 h1B Rg3+ Kh4 Bg1 Bg2 Rc3 Nh7 Rc6 Nf6 Q3c4 Kg3 Rb6 Kh3 Qcb3+ N5e3+
QN1N1q1r/4pB2/1nQ1P1K1/Q3R3/qR1Qr1nP/n2b1p2/BrNb4/q2k4 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 h6 g5 Bb7 b3 Qd7 g6 Qd6 Bb2 Bc8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 h4 a5 b6 c5 g7 a4 b7 f3 d6 a3 d7 c4 Kf5 g4 e4 a2 d5 c3 d6 g3 e5 f2 e6 g2 Ne2 g1R Nd4 c2 Bc4 f1Q+ Qf3 c1Q Na3 Nf6 g8B Bh6 Rb1 Qe8 d8Q a1N d7 Ra4 Rb2 Qfd1 Qc6 Kc3 b4 Rg2 b5 Bd2 b6 Qf8 Nac2 Ng4 Rb4 f6 Kg6 f5 Bf7 f4 Rh2 f3 Ba2+ Kd3 Qdc7 Qb2 d8Q Nd7 b8Q Ba6 b7 Nb6 Qa8 Qc3 Nb3+ Ke2 b8N Rf2 Qf4 Bd3+ Qf5 Qd4 Na5 Qe1 Nb7 Kd1 Qdd6 Qh1 Nd8 Re2 Ne1 Nc2 Rf2 Re4 Re2 Na3 Nc2 Ra5 Qfe5 Rb5 Qdc7 Qa1 Qd4 Qh2 Qca7 Qc7 Qa5 Qd7 Rc4 Rb2 Rb4 Bc4 Qcd5 Qa4 Qdc6 Rf4 Re5 Re4 Qdd6 Bb5 Qd4 Bd3
1q2r1n1/K2Np2R/nP1rQ3/b1B2Qq1/BR1B2R1/1N1b4/kq2n1Pp/4R2b w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 c5 f4 a5 d4 h5 b4 c4 b6 c3 b5 h3 f5 c2 d6 h4 b7 a4 d5 a3 Kd4 a2 Kc5 h2 f6 e3 d7 e2 d6 Ke6 f7 e1N Nd2 h3 Ngf3 Nf6 Nb3 Bh6 f8Q Bg7 Bb2 Ra6 Ne5 Ng8 Bd4 Nf3 Qe2 Ng1 Re1 a1Q Qff2 Qe8 d8R Qb2 d7 Rd6 Qe4 c1Q+ Qfc2 Nc6 Kb6 Qg5 b8R Nb4+ Ka7 Ba6 Qg6+ Kd5 Qcf5 Bh6 Rdc8 Ne2 d8B Bg7 Nd7+ Be5 Bc5 Kc4 Bdb6 Bc3 Rd8 Qf8 Bd4 Bd2 Bbc5 Bc3 b6 Bb5 Qh6 Na6 Rbc8 Ba5 Rc6 Rd5 Rg6 Rd6 Rc8 Qgc1 Rg4 Qg5 Bg1+ Kc3 Qhe6 Bd3 Bcd4+ Kb4 Rc4+ Ka3 Rb4 Ka2 Bgf2 Qc8 Bfe3 Nh6 Bf2 Re8 Bc5 Ng8 Bfd4 Ng3 Be2 Qd8 Bf3 Ne2 Bc6 Qc8 Ba4 Qd8 Rhf1 h1B Rf3 h2 Rh3 Qc8 Rh7 Qb8+
1B2n1q1/2QP1K1b/BBnRQ2b/2NR3B/1r4P1/nr2p3/N4pqr/3Qb1k1 w - - 0 1 illegal: No proof kernel
B1Bn4/2QP4/K1b2n1N/2pR1Nr1/3n1pqQ/1b2Rqr1/Pb1BqB1R/5k2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kd3 c5 Kc4 f5 Kb5 g5 h4 g4 e4 b6 h6 f3 h5 f4 h7 g3 h6 g2 Nc3 b3 Nce2 f2 Bd2 b2 Rh2 b1N Ng3 Nf6 Nh3 g1Q Ng5 Bg7 Bh3 Bb7 Bc8 Rg8 h8B Qe7 h7 f1Q+ Qe2 Nc6 e5+ Kc7 e6 Kd6 Qd3 Qf3 Qe2 Qe8 e7 Ra3 Qe1 Qeh5 e8B Nd8 Bc6 Qhg4 Re2 Qh2 Re3 Rd3 Qh1 Qhe2 Qh4 Ba8 Ka6 b5 B6b7 Nc3 Rd1 b4 Bc6 b3 Nf7+ Kc7 B6b7 b2 Nf5 b1B N7h6 Nb5 Bc6 Bc2 d6+ Kb8 d7 Kc7 d5 Bb3 B6b7 Nd4 Bc6 Bf8 B6b7 Rg5 Bg7 Bd6 h8R Be5 Rh7 N4c6 Rh8 Bb2 Rh7 Nd4 d6+ Kb8 Be4 Bc6 Bd5 Nf7 d8Q Ka8 Qe8 Nd8 d7 Kb8 Be4 Kc7 Qg6 Bcd5 Qe8 Kc6 Qe5 Rc3+ Bd3 Be4 Qc7+ Kd5 Bb5 Rd3 Bc6+ Kc4 Ba8 Bc6 Rh1 Rg6 Rh2 Rg5 Bh8 Rc3 Rhe7 Rd3 R3e5 Re3 Rd5 Kd3 Re8 Qef2 Re6 Ke2 Re4 Kf1 Re6 Rd3 Re3 Rc3 Re2 Qe4 Bcb7 Ne8 Ng7 Nc2 Ngf5 Rg3 Bd4 Qef3 Bc8 Nf6 Re6 Qe1 Bf2 Nd4 Re3 Qee2+
N1q5/3PB1kr/3R2p1/PRp2BQ1/Q2KnN1b/3b1q2/1n2b1Rq/B2B1rr1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 f5 a4 Kf7 e4 b5 h4 c6 d4 f3 Ke3 g6 e5 f2 d6 b3 h6 b4 e6+ Kf6 e7 b2 e8B b3 d5 f4+ Kd4 f3 a5 Qc7 h5 Qf7 h7 Qb7 h6 Bd7 Ne2 Na6 Nbc3 b1Q Ra2 b2 Rh5 Qc8 Nb5 Qf5 Nf4 b1R Be2 f1B Ba3 f2 Qa4 Nc5 Bd1 Qh3 Nc7 Bg4 d7 Bge2 d8R Be7 d6 Qh2 Bd7 Nd3 Rb5 Nb2 Bf5 Kf7 Bc5 Bh4 Bb4 Rb8 Na8 Nf6 Ba3 Rf8 h8Q Ne4 h7 Rb7 Qe5 Rc1 Qc5 Kg7 Qd5 Bd3 Bc5 Bfe2 h8B+ Kh6 Qe5 f1Q Qf6 Qf3 Qg5+ Kh7 Bf6 Kg8 Be7 Kg7 Ba3 Nc4 Bb2 Ra7 Ba1 Nb2 Bc2 Rg1 Bd1 Rh8 d7 Rh7 Rf8 Rb7 Rf6 Rb8 Rc5 Rb3 Rd6 Rc3 Rb5 Rc1 Bb3 Rcf1 Bd1 Nc4 Rd2 Nb2 Rc2 Bc4 Rd2 Bed3 Rg2 Be2 Rf6 Bcd3 Rd6 c5+
b2rq2b/1k1pQ1BR/q3B1nr/1Pp1QRN1/bKn2Q2/8/3rP1NQ/2nR4 w - - 0 1 illegal: No possible last move, all moves rejected
1Nqqb1bN/N1P2P1R/3b2p1/3K1R2/2rn2N1/BnrB3p/4Q2r/1R2Q1nk w - - 0 1 illegal: No proof kernel
nkr2bn1/2p5/1qB1qQr1/8/R2Q4/rP1Nn1Qb/1KNpR1PB/b1Q4B w - - 0 1 illegal: Other
R1r4r/BNpB1Q1R/1Bbn2P1/2N3qr/b3PB1Q/1Qb1p2n/3qq3/2K3k1 w - - 0 1 illegal: No proof kernel
Q1nq2r1/1P1N1r1n/4p3/5BPb/R1KRR3/q1B3qp/1b3Nkb/2nBQ1B1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 b4 Ke5 c4 d5 g4 a5 c5 h5 g5 a4 f6 a3 f7 a2 c6 h3 c7 h4 f3 h2 b6 h3 b7 Nf6 b5 Ra7 b6 Nc6 b8Q Nh7 Qa8 Bg4 c8B Rg8 Bd2 Bh5 Bc3 Kf4 Bf5 Kg3 f4 e6 Nd2 Bd6 f8B Ne7 Ngf3 Nc8 Be2 Kg2 Ne5 Rf7 Re1 h1Q b7 Qh2 Ne4 Bb8 Beg4 Qg3+ Re3 Qe7 Qe1 Qa3 Bc5 Bc7 Rd1 a1B Nf2 Bb2 Nd7 Bd6 Ra1 Bb8 Bd1 Bd6 Kd2 d3 Re4 d4 Ra2 Qb4 Ra4 Qa3 Bfg4 Be5 f5 Bb8 f6 Bc7 Bde2 Bd6 Bf5 Bc7 Kd1 d2 Kc2 d1N Kd2 d3 B5d4 Ne3 Bd1 Nd5 Ba7 Nf4 Bb6 Re7 f7 Ne2 f8R Rf7 Rd8 Nc1 Bc5 Qf3 Ba7 Bh2 Bb6 Qg4 Ke3 d2 Kd4 Qg3 Kc4 Qe3 Nd3 Qf4 Bg1 Qg3 Nf2 Na2 Be2 d1Q Beg4 Qdd6 Bd1 Qc7+ Nc5 Qa5 Rdd4 Nc1 Nd7 Qd8
Bq5Q/1pB1n2r/Q6b/1q4N1/KP1N2q1/1rPnnB1B/1p3kb1/3R1rRQ w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 c5 hxg5 a4 d4 cxd4 Qf3 Nf6 Qh3 Ng8 Qb3 axb3 Kd1 Kf7 a4 e5 g4 d5 f4 h5 c3 d3 f6 Kg6 f5+ Kh7 a5 e4 f7 d4 a6 d2 a7 e3 f6 Kg6 Nh3 b2 Kc2 d1N Kb3 d3 Ka4 e2 Na3 e1R Nb5 d2 Nd4 h4 Rg1 Bh6 f8Q Na6 f7 Rh7 Qd6+ Be6 f8Q Qb8 Qh2 Bd5 Qh1 Ne7 Qh8 Bg2 Be2 Rf1 Bf3 Ne3 Rb1 Nc2 Ra1 d1Q Bf4 Qe2 Bc7 Ne3 Rd1 Nc5+ Ka5 Nd3 Ka4 Kf7 Qf6+ Kg8 Qe6+ Kg7 Qa6 Kf7 g6+ Kg7 Qc4 Kf6 Ng5 h3 g7 h2 g8B Kg6 Be6 Kf6 Bd8 Ke5 Qa6 Kf4 Ba5 Kg3 Bc7+ Kf2 Bd7 Qh8 Bf5 Rf8 Be6 Rf5 a8B Qb8 Nf7 Re5 g5 Rd5 g6 Ra5+ Kb3 Ra2 g7 Ra1 Bh3 Ra2 Bh5 Qg4 g8Q Ra5 Ng5 Ra2 Qa3 Ra1 Ka4 Ra2 Kb5 Ra1 Qa4 Ra3 Qh8 Rb3 Qa6 Bd5 Qe4 h1Q Ka4 Qh2 Qh1 Qe5 Qe6 Bg2 Qa6 Qgf5 Be2 Qg4 Bf3 Qb5+
kr1Q4/1pR2Nrp/r3Q2b/q3q1QB/2B1qb2/RNnK1N1P/2P3b1/3n1N2 w - - 0 1 legal: proof: e4 a5 d4 f5 f4 c5 dxc5 g5 b4 axb4 exf5 Ra7 f6 Ra3 f5 Ra8 Bf4 gxf4 Ke2 e5 a4 d5 g4 Kd7 f7 Kc7 a5 f3+ Kd2 e4 a6 e3+ Kd3 f2 g5 d4 f6 e2 g6 e1B a7 b3 g7 b2 c6 Bd2 Qe1 Bh3 Be2 f1R Bh5 Bg2 h3 Nd7 Nf3 Bf4 Qe6 Rg1 Nbd2 b1Q Nf1 Qb2 Ra3 Ne7 g8B B8h6 f8N Nd5 f7 N7b6 Nd7 Ne3 f8Q Nbd5 Qc5 Nc3 Qg5 Ned1 Nc5 Qe7 Bgf7 Rhb8 Nb3 Qa1 Rh2 Kb6 c7+ Qd6 Qef5 Qe5 c8N+ Kc7 Qe6 Qa2 Kc4 d3 Nd6 d2 Kd3 Qa1 Ra4 Qa3 Bg8 Qb4 Nf7 Qba5 Ra1 Ne3 Ra3 d1Q+ Nbd2 Qa1 Nb3 Qe1 Rh1 Ned1 Rh2 Bh1 Re2 Bg2 Re4 Rd8+ Rd4 Rd6 Rd5 Rb8 a8Q Rc6 Rd7+ Kc8 Qa7 Ra6 Qd4 Q1e4+ Kc4 Rba8 Re7+ Kb8 Rc7 Q4f5 Qd2 Ka7 Qdd5 Rb8 Qdd8 Qg4 Kd3 Ka8 Nbd2 Qh4 Nb3 Qf6 Qee8 Be5 Qg6 Bh1 Nh8 Bh2 Bd5 Qe5 Nf7 Rg5 Bc4 Bg2 Qgf6 Rg7 Qee6 Qhe1 Qff5 B2f4 Qfg5 Q1e4#
2Q3N1/rp3pr1/5Pbn/1q1RQ2P/1QnKN1R1/R1r5/BB2kbqQ/q3b3 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 gxh5 Bb4 Bd2 Bd6 Bc1 Bf8 e4 Ke7 Ke2 Ke6 Kd3 g5 a4 c5 h4 d5 f4 g4 f5+ Kd7 h6 Kc6 e6 g3 e7 c2 e8R g2 e5 d4 f6 Kd5 e6 Nd7 e7 Ra5 h7 Qb6 Bb2 c1R Nh3 g1Q Ng5 Nh6 Qg4 Ra7 a5 Rg8 h8Q Rg7 a6 Qg2 Ra3 Rc4 h5 Qb5 Rg1 Nb6 Ne4 Bf5 Rd8+ Ke5 Qh7 Bg6 e8Q+ Be7 Qc8 Kf4 Nc3 Kf3 Nd5 Bd6 Ne7 Bg3 Rd6 Be1 Rd5 Bf2 Ng8 Rc3+ Kd2 c4 Qe5 d3 Qh3+ Qg3 Qh2 Qh3 Rg4 Qg2 Kd1 d2 Bd3 Rb3 Kc2 c3 Bc4 Be1 Kd3 c2+ Kd4 c1B Qh8 Rc3 Ba2 Nc4 Qh7 Bf5 Qg6 Ke2 Qg5 Bg6 Qgf5 Re3 Qc8 Rc3 Qc5 Rh3 Qb4 d1Q+ Rd3 Bcd2 Rc3 Qa1 Ra3 Ra8 a7 Rc3 Rd6 Bg5 Rd8 Bgh4 Rd5 Re8 a8Q Bhg3 Qa7 Ra8 Qab8 Ra7 Qc8 Bgf2+
3B2KR/npn1P3/1p5q/2Nqnr1q/1BRbQ1N1/rP2r1Q1/2N5/2kNb2B w - - 0 1 illegal: No proof kernel
2qK1Q1b/Pq3Rq1/Bb1N1N2/n2r2pQ/p4N1N/1kr2R2/1P4RB/1n1r3b w - - 0 1 illegal: No possible last move
BQNB2bq/P2B4/1RQnr3/2rrRP2/nB6/3N1b1p/3nqp2/3KQ1bk w - - 0 1 illegal: No possible last move, all moves rejected
3BB1q1/PN2bq1r/2nPqNkb/rp6/3NRr2/Q2b1p2/1Q3n2/1RN1BK2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 f5 a4 Kf7 e4 g5 d4 c5 h6 c4 d6 c3 e5 g4 d5 f3 h7 b6 a5 f4 a6 g3 e6+ Kf6 e7 b3 e8N+ Kg6 h5+ Kg5 d7 c2 d6 g2 h6 b2 Bb5 Qf6 d8N Bf5 Rh4 Qe6+ Ne2 Be7 Nf6 Nc6 Bd2 c1B Na3 b1R Qb3 Kg6 Nb7 Bc2 a7 Rf8 Qe3 Rb3 Ba4 Rb5 Rb1 Ra5 Nb5 Rf7 Nbd4 b5 Qa3 Rf8 Bb3 Rf7 Bc3 Be3 Nc1 f2+ Ke2 g1Q Be1 Qgg4+ Kf1 Qg5 Nd5 Nf6 Rg4 Rhf8 h8B Ne4 Bf6 Rh7 Rh4 Qgg4 Bg5 Qg8 Nf6 Qf5 Be6 Qe5 Bd7 Qee6 Be8+ Rff7 Kg2 f1Q+ Kh2 Qd3 Kg2 Qdb3 Kf1 f3 Rf4 Nf2 Re4 Rg7 h7 Bd2 h8Q Rh7 Bh4 Bh6 Nd5 Bef8 Bd8 Be7 Bd7 Rf4 Be8+ Qef7 Qe5 Qa2 Nf6 Qe6 Qec5 Qf8 Qcc3 Qg8 Qcb2 Bd3+
1nQrr3/p1R2N2/nQ1q2Rb/qR3N2/K1PQ4/B2p1n2/k2rb1Pq/2QB4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 e5 f4 d5 b6 h5 b5 d3 Kc3 d2 Kb3 d4 f6 Ke6 f7 Kd5 f5 e4 f6 e3 b7 h3 b6 h4 Na3 d3 Ka4 h2 Be2 h3 Nc4 Qd6 Nf3 Bg4 Nce5 Ne7 Nd4 Na6 b8R Bh6 f8Q Nc6 Nf7 Kc4 Qg7 Rd8 b7 Bh5 Qg1 d1R Nf5 Rd2 Bd1 e2 Ba3 e1N Rc1 Be2 Qb6 Nf3 Re1 Bf1 Re6 h1Q c3 h2 Rc2 Nfe5 Qb1 Be2 Qc1 Qe1 Qh8 h1Q Qg7 Na5 Qg4+ Kd5 Qd4+ Kc6 Bb4 Rf8 Qf2 Kd5 Nd8 Kc4 f7 Re8 Rg6 Nac6 Ba3 Qh2 Qg1 Nf3 f8Q Re4 Qg7 Re7 Nf7 Re8 Rc8 Rb8 Rb2 Rc2 Rc7 Rbd8 b8Q Qd2 Qc8 Qe1 Bc5 Ncb8 Rb5 Qd2 Qb1 Qc1 Qh8 Qb2 Qc1 Rd2 Qf6 Qf8 Qb6 Qfd6 Ka5 Qc2 Bb4+ Kb3 c4 Ka2 Qgd4 Qb3 Ba3 Qc3+ Ka4 Qa5+
rB2qr2/p3n1Np/1k2NR1P/3R4/3bN1b1/2BQn2B/1NPn3K/q1r1Qq2 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 fxg4 h4 Kd7 d4 Kc7 f4 g5 Kf2 e5 Kg2 g3 f5 e3 b6+ Kc6 d5+ Kb7 f6 e2 f7 e1Q h5 g4 d6 e4 d7 e3 h6 e2 Bd2 Ne7 Nf3 Ng6 Ne5 Qg5 d8Q Nc6 Nc4 Qe3 Ra6 Qd4 Nb2 Na5 Rh5 Nc4 Rd5 Bg7 f8N Ne7 Bc3 Nd2 Ne6 Rf8 Qc1 Kc6 b7+ Kb5 Kh1 g2+ Kh2 g1R b8B Qe4 Qd6 Bd4 Bh3 Qf1 Qe1 Qg6 Qd8 Qe8 Rad6 Bd7 c6+ Ka6 c7+ Kb7 Qh4 e1N c8N Ng2 Qe1 Ne3 Rc6 Bb6 Nd6+ Ka6 Rc8 Bd4 Nf5 Kb7 Rc7+ Kb6 Nfg7 Bc8 Bb4 Bd7 Nc3 Bc8 Ne4 Bd7 Qf2 Qa1 Bc3 Rc1 Qe1 g3+ Kh1 g2+ Kh2 Bb5 Qd7 Be2 Rcc5 Bg4 Rf5 Bf6 Qd3 Bd4 Rcd5 Bf3 Rf6 Bg4 Kg3 g1Q+ Bg2 Qh1 Bh3 Qf3+ Kh2 Qf1
4K3/pqQ1P2b/5B1B/4rB1R/2N5/RBbq1Pnn/2prQRr1/1qkn2N1 w - - 0 1 illegal: No proof kernel
2nnNB2/p1b1P2Q/2kr4/3n4/1q3pq1/R2Q1bRN/R3KPbr/1Qr1B2R w - - 0 1 illegal: No possible last move, all moves rejected
R1q3q1/pP2P1B1/NQn1r3/1N2b1k1/Q3r1Bp/1N1N1q2/RbK2n2/3br2R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kf6 b4 c5 g4 h5 e4 c4 e5+ Kg5 e6 f5 b6 f3 d6 f4 b5 f2 b7 c3+ Kc2 h3 d7 h4 d5 h2 d6 Kg6 e7 f3 g5 Nh6 b6 Ng4 Bb2 Nc6 b8N Rh6 b7 Bg7 Ne2 Be5 Nd4 Qg8 Bh3 f1R d8N f2 d7 Re1 N8e6 f1Q d8Q Qf3 Nd2 Nf2 Nc5 Bg4 Nba6 Rc8 Nd3 Qf5 Qa5 Be2 Qb6 Kh5 g6 Kg5 g7 Re6 Ra2 Rd8 Kb3 c2 Bg4 c1B Nb5 Rd4 Kc2 Re4 Nb3 Qff8 Bd4 Bb2 Qa1 Qc8 Bc3 Qh7 g8R+ Qg7 Rf8 Qg8 Qd1 Bg3 Bg7 Bge5 Rg1 h1Q Re8 Qh2 Rh1 Qg3 Rf8 Qf3 Re8 Qd7 Ra8 Qdc8 Qa1 Ba3 Qad4 Bb2 Qa4 Bd1+
rQ1bB1Q1/B1r2n2/N1R1b1b1/1qRpQr2/k5n1/PR1P1pN1/2r3r1/4K1Q1 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 a6 b4 h4 b5 axb5 g3 bxc4 gxh4 c3 h5 Qg5 Qc2 Qf6 Qd1 Qd8 e4 f5 h4 d5 a3 Kd7 e6+ Kc6 h6 g5 h7 b5 h5 c2 e5 f4 h6 g4 e7 f3 e8Q+ Nd7 e6 b4 e7 g3 Rh3 g2 Bb2 c1R Rh1 b3 Bd4 b2 Ba7 Rc2 Ne2 Kb5 Ng3+ Ka4 Rg1 c5 Nc3+ Kb3 Qg6 b1B e8Q c4 Nb5 c3 Nc7 Be7 Bb5 Ngf6 Qgg8 Ng4 Na6 Qa5 Qh5 Bh4 Qe5 Bd8 Qb8 Nde5 Be8+ Qb4 Ra2 Qb5 Rb2+ Ka4 Rb3 Nf7 Rf1 g1R d3 Rgg2 Qc1 Be6 Qe3 Ba2 Qg1 Bb1 Qg7 Rf8 h8Q Ba2 h7 Bb1 Qhg8 Ba2 Rb1 Bb3 h8R Rb2 Rh1 Nfh6 Rf2 c2 Qf1 Qc6 Bd7 Bc4 Qge5 Rf4 Kd2 Bb5 Qc1 Ra2 Rb3 Rf5 Qca1 Qc4 Rc1 Bc6 Qad4 Rb2 Qc5 Qb5 Ke1 Ra2 Re2 Rb2 Qg1 Ra2 Bc8 Be8 Bd7 Bg6 Be8 Nf7 Re4+ Ka5 Rc4 Rb2 Rd1 c1R Rc8 Rc6 Rc1 Ka4 Rc5 Rbc2 Rc7 Rd6 Rc8 Rd7 R8c6 Rc7
N2kBb2/bQ6/K2r1rQ1/2npbRN1/2R1q2p/1n4bP/2N1b2P/Rn2R1B1 w - - 0 1 illegal: No possible last move
4Qrb1/R4n2/BB1r2p1/2R2p1k/3N2nb/qKb5/1N1BPPrN/r2B1rQ1 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 hxg4 a4 e5 axb5 exd4 Kd2 f5 c4 Kf7 Kc2 Kg6 h4 d5 c6 a5 b6 a4 c5 a3 b7 a2 c7 d3+ Kb3 d2 c6 g3 h5+ Kg5 h6 d4 h7 d3 Nc3 g6 Na4 g2 Nb2 Nd7 b8N Be7 Nf3+ Kg4 Nh2+ Kh5 Qe1 d1R Bd2 g1R Bg2 Nh6 Bd5 Rf8 h8B Ng4 Bd4 Rg2 Qg1 Nde5 Bb6 Be6 c8B Bh4 c7 Bg8 Ba6 Rf1 c8Q Nf7 Nc6 Ra7 Rc1 a1B Nd4 Rd7 Be4 Rd6 Rc5 Qc7 Qe8 Qd8 Bh6 d2 Bc2 d1R Bd2 Rb1 Bd1 Rc1 Nd3 Bc3 Nb2 Ra1 Nhf3 Qg5 Rh3 Qe7 Nh2 Qc7 Re3 Qd8 Re7 Qa8 Ra7 Qd5+ Rc4 Qa5 Rc5 Qa3+
NkB4q/1n6/3P4/NQ1NRr1N/1pbn1rp1/r1r2Q2/1rB1Pb1B/1n1K1R2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 Kd7 d4 b5 h4 f5 d6 g5 a5 c5 a6 b3 d5 f3 a7 b4 h6 f4 h5 b2 h7 c4 h6 c3 Nh3 c2 Qd3 Nf6 Nc3 b1R Ra5 Qe7 Qb5+ Nc6 Na4 Qe5 Nb6+ Kd8 d7 Kc7 d8N Ne8 Nb7 f2+ Kd2 f3 Nf4 Bg4 Bh3 f1R Nh5 f2 Bb2 Qf6 Be5+ Nd6 Bh2 c1R Rg1 Rg8 h8N Be6 h7 Nd4 Ng6 Rc3 Ne7 Qh8 Bg4 Bf7 Bc8 g4 Rh1 Rg5 Rg1 Qg8 h8Q Rf5 Qf6 Qh8 Rh1 Rf4 Qf5 Rbb3 Qe4 Bh6 Qf3 Bg5 Rg1 Bh4 Rh1 Ra3 Rg1 Rb1 Rf1 Rb2+ Kd1 Rb8 a8B Rf5 Be6 Rf8 Bc8 Bg3 Nd8 Nb7 d6+ Kb8 Ned5 Nc5 Bc6 Nb7 Na8 Bg8 Be8 Rf4 Bg6 R8f5 Ne7 Bc4 Nd5 Rf7 Bc2 R7f5 Ne6 Bh4 Nc5 Bg3 Nb3 Bh4 Rg1 f1N Rh1 Nd2 Rf1 Re4 Ra6 Ref4 Na5 Nb1 Rc6 Qg8 Rc7 Qh7 Re7 Qh8 Re5 Bf2
8/2K1r3/B1PR1rk1/3PrRb1/n3n1bQ/2Qp2rB/1N1pR1qB/1bRNr3 w - - 0 1 illegal: No proof kernel
B2b2nb/3b1R2/NP1BQ3/K2R4/np3PbB/2Nr1qQQ/p1B1br1n/7k w - - 0 1 illegal: No proof kernel
6n1/4r1Br/P1nbB1p1/1bk3nn/1N1N1QP1/4p1Q1/1Q1rnBK1/qR1Q2R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 c4 f5 exf5 d5 cxd5 h5 g4 h4 Qf3 Be6 Qh3 Bc8 Qg3 hxg3 d4 Kd7 h4 Kd6 f4 e5 a4 b5 f6 c5 h5 e4 f5 g6 a5 g2 Kf2 b3 f7 b2 f6 c4 h6 c3 a6 c2 h7 b4 Be3 c1N Na3 b1R Ne2 g1N Kg2 b3 Nc2 b2 Nb4 Ne7 Bf2 Nh3 Rg1 Rg8 h8B Nd3 Bg7 Re1 Rd1 Nbc6 Rb1 Kc7 d6+ Kb6 d7 Rh8 d5+ e3 d6 Ng8 Nd5+ Kc5 Nb4 Qa5 d8Q Ng5 d7 Rd1 Qc7 Rh7 d8Q Ra7 Qg3 Re7 Nd4 Bd7 Be2 Rd2 Bf3 Ne6 Bd5 Ng5 Be6 Qa1 Qdb8 Nd8 Qbf4 Bb5 Qff3 Nc6 Qe2 Rb7 Qd1 Bd6 f8Q Re7 f7 Kb6 Rc1 b1N Qe8 Nc3 f8Q Kc5 Rb1 Ne2 Qb8 Nde5 Qff4 Nd7 Qb7 Ndf6 Nbc2 Bc4 Qb2 Bb5 Nb4 Nh5
b1B5/4K1n1/p3n2b/n2Qq2R/3Bn3/1r1QRPkN/b2P2pn/BNRB2r1 w - - 0 1 illegal: No proof kernel
b2K1Q1R/5Bbp/Q2b2B1/3b2N1/3n1BbB/R1r2Pp1/nrPNr3/2q3kN w - - 0 1 illegal: No proof kernel
q1bn1nk1/4QnpN/1b2nQNR/r6B/p1P1r1Q1/3Pbn2/BR1B1B2/4K3 w - - 0 1 illegal: No proof kernel
1nbB4/1RN1np1r/P1BnQ3/1Q5p/nrR1Br2/2R1K2P/k2q1N2/5bRn w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 a5 b4 axb4 g5 d5 cxd5 h5 Nh3 g6 Ng1 Bh6 gxh6 Qf6 Nf3 Qe7 Ng1 Qd8 Kf2 Kd7 e4 Kd6 d4 c5 a4 b5 h7 g5 a5 c4 a6 b3 Na3 f3 Bd3 c3 Rb1 c2 Nh3 b2 Qf1 b4 Rg1 g4 Ke3 b3 Nf2 g3 h3 g2 Qe1 Ne7 e5+ Kc7 d6+ Kc6 d5+ Kc5 Qe2 Kb4 d7 Ka4 Bd2 c1N Be4 Nd3 d6 Nc5 e6 Nb7 Rbc1 b1N Nb5 b2 Ba5 Kb3 Rc4 Nc3 Nc7 b1R Qf1 Re8 h8Q Ka2 Qe5 Na4 Qe1 Rh8 Qb5 Rh7 Rc3 Rb4 Rc4 Qh8 d8R Qb2 d7 Nd6 Rf8 Ra7 d8R Rb7 Rd7 Rb6 Rh8 Rc6 Rc3 Rcc4 Rg8 Qc2 Rg5 Rd4 Rgc5 Qd1 R5c4 Qc2 Rh1 g1N Bb6 Ne2 Rg1 Ng3 Ba5 Ng6 e7 Nh1 e8B Qb2 Re7 Qc2 B8c6 Qb2 Nd3 f2 Bb6 f1B Nf2 Rd5 Qe2 Rf5 Qg4 Rf4 Qe6 Ka1 Bd4 Ka2 Bf6 Qc2 Rd7 Qb2 Bd8 Ne7 Ne8 Rf6 Rb7 Rf4 Nc7 Qd2+
1b3q1Q/1Q1P3r/5nQN/N4B1N/1b1kppK1/RPr3n1/1b3N2/Bb2rRb1 w - - 0 1 illegal: No possible last move, all moves rejected
nr2R2n/3p1B2/2kB2Pr/2NrP1bn/1RQ2q1n/1R1bpR2/4K1n1/3N1Q1B w - - 0 1 illegal: No proof kernel
B1R1Q1bn/2P1n3/2P5/k1N3qR/2n2QRB/1r2p1p1/b1R1rn1n/bN3N1K w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 h4 a5 b4 g5 c4 e5 f4 d5 Kf2 Kd7 Kg2 Kc7 h5 g3 c6 Kb6 c7 e3 h6 a4 h7 e4 f5 a3 f6 d4 f7 d3 Nd2 a2 Rh3 g4 Rh4 e2 Ngf3 e1N+ Kg1 e3 Qa4 g2 Nb1 d2 Bb2 d1B Nfd2 Be6 Bf6 Bg7 f8Q Nd3 Qe8 Nf2 Bg5 Bb3 c5+ Kb7 b6 Nc6 b5 Nce7 Qc4 Ng6 Qf4 Ra3 Rh5 Bc3 Bh4 N8e7 Be2 Bd4 Nf1 Bg8 Bf3+ Bbd5 Kh2 g1N Be4 g3+ Kg2 Nd1 Kh1 Nf3 Rg5 Be5 Rg4 Nh2 Bf3 Rb3 Bg2 Ka8 b7+ Ka7 b6+ Ka6 b8R Ka5 b7 Bc4 Rc8 Nf2+ Kg1 Bg7 b8N Qd5 Na6 Qg5 Ba8 Bcf7 Na3 Bd5 Rd1 a1N c6 Nc2 Nb1 Ba1 Nc5 Na3 Rc1 Nc4 Rc2 Bge6 Nfd2 Rf8 h8R Bg8 Rh5 Nh8 Nf1 Bde6 Qef7 Rd8 Qg6 Rd2 Qe8 Re2 Nd7 Nb2 Rd2 Ra3 Nc5 Ba2 Rc2 Rb3 Kg2 Nc4 Kg1 Nh3+ Kh1 Nf2+
3b1N1n/nbPrp2p/6qk/3K2Nr/B3Rr1r/nR2B2r/4PQ2/BB1QR3 w - - 0 1 illegal: No possible last move
1rBQRrR1/2p5/4BN1k/B2Pb3/b2P1rb1/r3np2/1N2rQ1K/1q2nNN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 g4 f5 Kg2 Kf7 e4 Kg6 b4 a5 b6 h3+ Kh2 f3 b5 f4 b7 a4 b6 h4 d3 a3 g5 a2 Nd2 f2 Qe1 Na6 b8N Nf6 b7 Bg4 Nc6 Nb4 b8Q Bg7 Na5 Rf8 Nac4 Nc2 Nb2 f3 Qe3 Ne1 d4 Ra3 Bg2 f1B e5 Bb5 e6 Ba4 e7 Rb3 Rb1 a1R e8N Raa3 Nf1 Qe7 Qe2 Qe4 Qd8 Rb8 Qf2 Qc2 Ra1 Qb1 Bd2 Kh5 g6 Bh8 g7 Kg6 Ba5 Kh6 g8B Bg7 Ne2 Bh8 Kg1 Bg7 Nfg3 Bh8 Be6 h2+ Kf1 h3 Rg1 h1R Bc8 h2 Bh3 Bh5 Bhe6 Ng4 Ra2 Be5 Nf6 Rc3 Ra3 Rc2 Re3 Rc3 Qg2 Ra3 Re4 Ne3+ Kf2 Bb5 Nf1 Bg4 Qg3 Ba4 Qh4+ Bh5 Rg8 Rg1 Qg3 h1R Qh4 Rg7 Ng1 Rg4 Qh2 Rf4 Kg3 Bc2 Qf2 Rh2 Rg7 Ba4 Rg8 Rg2+ Kh3 Rg7 Kh2 Bg4 Nh7 Re7 Nf6 Ree8 Bd2 N3g2 Bf5 Bd6 Ba5 Re7 Re3 Re5 Rb3 Re2 Re3 Rb7 Re7 Rb8 Re8 Be5 Bfe6 Ne3
NQ1BB3/1RpPN1n1/2n3nb/1B1P1nb1/2bRN3/2q1nKpk/2r5/1N2Q1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 f5 e4 g5 h4 a4 e5 a3 d6 Ke6 h5 a2 b6 g3+ Kg2 f3+ Kh3 f4 Kg4 f2 d7 g2 b7 f3 h6 Nf6+ Kg3 Kf5 e6 g4 h7 Bh6 b5 Ne8 b6 Rg8 h8N Nc6 b8N Ba6 b7 Bc4 Bg5 Ng7 Rh3 Qf6 Ne2 g1N Rh4 Nh3 Qe1 Nf4 Nec3 Ng6 Ne4 Ra6 Bd3 f1N+ Kf2 Qe5 Bd8 Ne3 Be2 Qf6 Kg3 f2 Bf1 Bd5 Bb5 f1N+ Kf2 Ra8 Ke2 Ng3+ Kf2 Nf8 Ng6 Bc4 Ne7+ Kf4 d5 Qc3 Nc8 Ra6 e7 Ng6 e8B Ng3f5 Nb6 Ra5 Na8 Bg5 Ba4 Rc5 Bb5 Bh6 Na3 Bg5 Rb1 a1B Rb4 Bb2 Nb1 Bc1 Rb2 Ncd4 Nc6 Bd2 Ne7 Nc6 b8Q Bc1 Rh2 Bh6 Nf6 Kg5 Rg2 Kh4 Ne4 Kh3 Rg1 g3+ Kf3 Rh8 Rgg2 Bg5 Rgd2 Rh4 Rd3 Rf4+ Ke2 Rf1 Rb4 Rg1 Kf3 Nd1 Rb3 Bcf4 Rb4 Nde3 Rd4 Bh6 Ba4 Bfg5 Rb7 Ra5 Bb5 Ra2 Qd1 Rb2 Qe1 Rc2
1Bn2rbk/RPn1bQ2/1P1b3n/KB5r/BB1qN2N/pb1p4/b3R3/3Q1Q2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kg7 g4 d5 b4 e5 c4 a5 g5 h5 b6 a4 g6 a3 b5 d3 Kc3 d2 c5 e4 Kb4 e3 b7 e2 Ra2 e1B Nc3 d4 Ne4 h3 Nf3 h2 Nh4 Ne7 c6 Be6 f6+ Kg8 g7 Bg3 f5 Na6+ Ka4 Nc8 f7+ Kh7 b6 Be7 f8B Bgd6 c7 Bg8 Bb5 d3 f6 Rb8 Re1 h1N f7 Nf2 Ka5 Ng4 Re2 Ra8 Rb2 Nh6 Rb4 Qd7 Ra4 Qg4 Qe1 d1B Bf4 Bb3 Qd1 Qg1 Bg3 Qd4 Bh2 Na7 c8B Nc7 Bcd7 Rb8 Ng6 h4 Be5 h3 Nh4 h2 Bg3 Bf6 Be7 h1B f8Q Bg5 Qff1 Rf8 Be8 Nc8 Bed7 Be5 Bb4 Bd6 Be8 Ba2 Bec6 Bge7 Bd7 Ng4 Bdc6 Bgb3 g8Q+ Kh6 Ba6 Bf4 Nf2 Na8 Kb5 Bhd5 Ne4 Be5 Qe6+ Kh7 Qef6 Bg8 Qf7+ Bg7 Bb8 Bd6 Qd5 Bf6 Qc4 Kg7 Be8 Rh7 Qf7+ Kh8 Bd7 Bfe7 Ra5 Be6 Ka4 Nc7 Bc4 Qc3 Ra7 Qd4 Ka5 Rh6 Bb3 Rh5+ Bb5 Nh6 Ba4 Beb3
b2b1b2/Kpq4N/1N2r1B1/kNQQ3R/n3R2P/1bP1BrQb/5n1p/5Nn1 w - - 0 1 illegal: Other
n2BN1rn/1p3Q1b/2B1QBN1/P2RrP2/Q1R3KB/rr6/1q4p1/1r1b2bk w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 h4 Kd6 a4 Ke5 f4+ Ke4 d4 e5 f6 c5 h5 g5 f7 g3 d6 b3 d5 g4 h6 c4 h7 c3 d7 c2 d6 g2 Nh3 g1R Ra2 g3 Ra3 b2 Rf3 Qb6 d8B Bg4 d7 Na6 Na3 b1B Bb2 c1R Bg2 Ne7 Nc4 Ng6 Bh4 Rg8 h8Q Nc7 d8B Bc5 f8Q Rc3 Qhh6 Nh8 Qf7 Rb3 Qhe6 Ra7 Qdd7 Na8 Ba1 Rc1 Rd1 Bg1 Rd5 Bc2 Qde8 Rcb1 Qb5 Bh5 f5 Bg6 Qb4 Bh7 Nf4 Qb5 Ng6 Bd1+ Kf1 Ra5 Bh1 Qb6 Kg2 Qd4 Rf2 Qb2 Nd6+ Ke3 Kh3 e4 Bf3 g2 Rc2 Ra7 Rc4 Ra6 Bhe7 Kf2 Kg4 e3 Ne8 e2 Bh4+ Kf1 Qb5 e1R Qbc6 Re5 a5 Ra3 Qb5 Rb6 Qa4 Rbb3 Bhf6 Qc2 Bd4 Qb2 Bf2 Bh2 Be1 Kg1 Beh4 Kh1 Rd7 Re2 Bc6 Bg1 Rd5 Re5+
k5NB/1p3nb1/N1b1q1K1/p2r1nNR/P1Nb4/2bB4/PBr1QbQR/7r w - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 hxg4 f4 e5 b3 exf4 Nc3 Qd7 Nb1 Qa4 bxa4 Rh5 Na3 Rh4 Nb1 Rh8 Kf2 Kd8 d4 f5 h4 c5 e4 Kc7 e5 g5 e6 a5 e7 g3+ Kf3 g2 e8Q g4+ Ke2 c4 h5 c3 Kd3 g3 h6 c2 h7 f3 Ne2 g1B Nec3 f2 Rh5 f4 Ke4 g2 Bb2 c1B Bd3 f1Q Nd2 f3 Qe2 f2 Nc4 Bd7 Qg6 Bc6 Kf5 Nd7 d6+ Kb8 d5 Bd2 Nb5 Ne5 d7 Nf7 d8N Bc3 d6 Bfg7 d7 Qe1 Ne6 Ra6 d8N Ka8 Qgg4 f1R+ Kg6 Ngh6 Ng5 Bf2 Rc1 g1B Rc2 Bfd4 Qgg2 Nf5 Rd2 Rg8 h8B Bgf2 Rc2 Rh1 Nc7+ Ka7 Rd2 Re8 Rc2 Re5 Rd2 Rb6 Na6 Ka8 Rc2 Rd5 Rd2 Be8+ Nc6 Rbb5 Ne7 Rbc5 Ng8 Bc6 Qeg4 Qe3 Qe2 Qe6+ Nf6 Bf8 Qg1 Bfe3 Qeh2 Rd8 Nd6 Bb4 Qd1 Rc1 Nc4 Bg7 Qg3 Bg1 Rdh2 Bgf2 Qe2 Rd5 Qgg4 Bbc3 Qg2 Qd7 Ng8 Rc2 Nf6 Qe7 Ng8 Qe6+
2B1K1Q1/P1r4Q/2B1Qb1p/r1qQrpRP/b1R1n1N1/kB1n4/br3r2/3N4 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 e5 Bb2 Be7 Bd4 Bf8 fxe5 g6 Be3 g5 Bf4 gxf4 Kf2 Kd7 Kf3 c5 Kg4 f5+ Kh5 b5 g4 h6 Kg6 f3 Kf7 c4 e4 f2 d4 b3 h4 c3 a4 b4 d6 Kc6 a5 c2 g5 c1R d5+ Kc5 d7 b2 e6 b3 e5 Kb4 d6 Ra6 g6 Ra8 g7 Ne7 g8B Ba6 h5 Rc6 Rh4+ Rc4 Nh3 Nd5 e7 Rf4 e8Q Ne3 e6 Ng2 e7 Ne1 Nc3 Qc8 d8Q b1R d7 b2 Qc7 Bb5 d8Q Nd7 a6 Bg7 a7 Nf6 Qec6 Rh7 e8B Rb8 Bc4 f1R Be6 Re4 Nf2 Rb7 Qf3 Nd3 Ra2 Rbc1 Ncd1 b1B Rc2 Rb8 Rg4 Bh8+ Rg7 Re5 Ng4 Rf2 Kf8 Ka4 Rg5 Rd7 Q6b6 Rdd5 Qh7 Ba2 Qe4+ Qc4 Bc8 Ka3 Qed4 Rc5 Bd5 Ba4 Qe6 Rb7 Bb5 Rb1 Bbc6 Ra5 Qc5+ Qb4 Bb3 Ne4 Rc4 Rbb2 Qde8 Re7 Qcd5 Bf6 Q8f7 Rb7+ Ke8 Rc7 Qfg8 Qc5
2NBk3/PpB1npnq/nP3Q2/3Nb2R/6br/1R2b3/RbQ3R1/1KN2br1 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 a6 b4 Bf5 b5 Qg5 b6 Bc8 Bh3 Qd8 Bd7+ Ke7 Bb5 axb5 Nf3 Kd7 Ng1 Ke8 d4 g5 Kd2 c5 Kc2 b4 e4 f3 a4 g4 h4 g3 d6 f2 e5 f1N d5 g2 d7+ Ke7 e6 c4 h6 c3 a5 Nd2 a6 Nf3 h5 Rh7 d6+ Kf6 e7 Ke6 e8N Qf6 d8B Kd7 a7 Na6 Rh3 Nh4 Ra2 Rb8 Ne2 g1B Bf4 Be3 Nc1 Ne7 Rf3 Rh8 h7 Nhf5 h6 Ng7 Rg3 Qe5 Rg2 Qh5 Qe2 Rg8 h8R Qh4 h7 b3+ Kd1 b2 Kc2 Nh5 Bh2 Bg7 Qc4 Be5 Qe4 Ke6 d7 Ng7 Nd6 Kf6 Bc7 Qh6 d8R Bg4 Nc8 Ke6 Re8 Kd7 Bd8 Qh4 Na3 Qh5 Nb5 Qf5 Nc7 b1B+ Kb3 Qh5 Nd5 Bd3 Bg3 Bb5 Kc2 Bf1 Kb1 Ra8 Qc2 Qf5 Nd6 Rc8 Bh2 Rc6 Nc8 Rh6 Bf4 Rh4 Bh2 Nc6 Re6 Ne7 Rh6 Ke8 Rh5 Rf8 Rg8 Qd3 h8Q Qe4 Qh6 Qh7 Rh8 Rg8 Qf6 Bg1 Ne2 Qg6 Qe6 Rh3 Rh4 Bf4 Nc1 Bh5 Qcf5 c2+ Kb2 Bd6 Rhg4 Rh4 Re2 Be3 Rb4 Bf3 Bf4 Nh5 Rb3 Bb8 Rh6 Qh7 Qef6 Rg1 Rg2 Ng7 Rh5 Bg4 Qd3 Be5+ Qc3 B5d4 Bfc7 Be5 Nd3 c1B+ Kb1 Nb8 Qc2 Bcb2 Nc1 Na6
1nQr4/p3K3/nNPB2br/kn3Q2/P1R2Rq1/3n1B1p/1bbN2nN/1B2B3 w - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kc7 Ke4 f5+ Ke5 h5 e4 b5 g4 f3 d4 f4 a4 h3 c6 Kb6 g5 h2 g6 b4 g7 f2 d6 h4 d5 f3 d7 h3 Ke6 b3 e5 b2 d6 Qh4 Bd2 Qd4 Be1 Nh6 g8N Qd3 Nd2 b1B Ne7 Nf5 Be2 f1N Qc2 f2 Ngf3 N1g3 Nd5+ Ka5 Nb6 Qd4 Rf1 h1N Nh2 Ne4 Bf3 Bg7 Kf7 Qc4+ e6 Nd4 d8Q Nc5 d7 Rh6 Qf5 Bc2 Rc1 Nb5 Ke7 Qg4 Qdf8 Ba6 d8B Bb2 Bc7 Bc8 Qh8 Nca6 Bd6 Bd7 Qc8 Be8 Bd1 Bg6 Bf3 Be4 Rc4 Bc2 Rg1 f1N Rf4 Qh5 Rgg4 Ne3 Rc4 Ng2 Rgf4 Ba1 Kd8 Bc3 e7 Bb2 e8B Qg4 Ke7 Nf2 Bf7 Nd3 B7d5 Nd7 Bde4 Rb8 Qc7 Rd8 Qc8 Ndb4 Bd3 Ndb8 Bde4 Bd1 Bc2 Nd3 Bb1 Bc2
2B1bb2/2NQ3n/NNRnR3/1n1q1bNQ/p3P2r/B3kr1P/p1r4n/1K5R w - - 0 1 illegal: No possible last move, all moves rejected
1n1K4/1rNb2b1/3BQNkr/2NPBnp1/1Qr1P1R1/p2qRn2/2Nr2Bb/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 g5 d4 a5 e4 c5 h4 f5 b4 Kf7 h5 f3 Ke3 g3 h6 a4 h7 g2 d6 c4 b6 f2 d7 c3 b7 a3 b5 c2 b6 Kf6 d5 f4+ Kd4 f3 Ne2 g1N Bf4 c1B Bg2 f1R Rh4 f2 Nbc3 Bb4 Bd6 Ne7 Rg4 Re8 h8B+ Kf7 Ke5 Rf8 Nb5 Ba5 Ned4 Ra7 Nc2 Kg6 Ke6 Nf3 Bhe5 Bc3 Nc7 Bf4 Qe1 Bd4 Qb4 Rh8 Re1 Nf5 Re2 Bh2 Re3 Na6 b8N Qf8 b7 Rh6 Qb6 Rd1 Qc6 f1R Qb6 N5h4 Qb4 Qh8 Ke7 Rd2 d8N Bd7 Nde6 Rc1 Nc5 Qh7+ Kd8 Nf5 Na1 Rc4 Nc2 Bc6 Nbd7 Nb8 Nf6 Bd7 Qb6 Qf7 Qa6 Qe6 Bf8 Qb6 Bfd6 Qb3 Qb6 Qd3 Qb4 Na6 b8Q Rb7 Qa8 Nb8 Qa6 Ba4 Qc6 Bb2 Qd7 Bd4 Qe7 Bd7 Qe6 Na6 Nfe8+ Kh5 Bf4 Bg7 Nf6+ Kg6 Bfe5 Nb8
2Q3qN/N3BR1b/1R1n1np1/Q1b1Bn1Q/r1b1r2p/2R2R1P/r5P1/3k1bK1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 b4 a6 b6 Qd7 b5 Ke7 b7 Qd6 b6 Qd8 e3 Ke8 Bb5+ axb5 Kf2 Ke7 d4 Kf6 h3 Kg5 e4 h5 e5 c5 e6 f5 e7 c4 e8R h4 d6 c3 d7 c2 d5 b4 d6 b3 Re7 b2 Qe1 Ra4 Qe3 Nf6 Re4 Na6 b8B Nc7 b7 Nb5 Na3 b1B Qf3 Rh6 Bd2 c1R Re3 Rcc4 Bb4 Re4 Ne2 Ba2 Rad1 Bc4 Rdf1 Be7 Rc3 Qg8 d8R Rh8 d7 Nd6 Rf8 g6 d8Q B8e6 Nc1 Bed5 Qd1 f3 Qa5 Kf4 Rf7 Rh5 Kg1 f2+ Kh2 Rh7 Nd3+ Ke3 Qh5 Kd2 Nb5 f4 Ne5 f3 Na7 Ra2 Rb1 f1N+ Kg1 Ng3 Bc5 Rh8 Rb6 Ngf5 Bc7 Rh7 b8Q Kd1 Qc8 Bf8 Rd7 Re7 Nf7 Rg4 Bb8 Ree4 Nh8 Be6 Rf7 f2+ Kh2+ f1B Kg1 Nb5 Be5 Be7 Bcd4 Bc5 Bd6 Bed5 Be7 Nbd6 Rf3 Ree2 Rc3 Ra4 Rf3 Rge4 Rc3 Be6 Rf3 Rf2 Be5 Rfa2+ Bd4 Qe8 Rf8 Kc1 Kh2 Bg8 Be5 Bh7 Rf7 Qg8 Rc3+ Kd2 Rg1 Bfe2 Rf1 Bed3 Rf3 Kd1 Kh1 Bf1 Kh2 Bb4 Kg1 Bc5+
1BQ2q2/nrBr4/2R2p2/1bb3N1/1NQRQ1n1/1rPpQK2/1n1b1P2/k1B2b2 w - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 d3 Bg2 e6 Bd5 exd5 Ra6 d4 Ra4 Qh4 Ra1 Qd8 e4 Ke7 b4 Kf6 h4 Ke5 h6 d5 b6 g5 h5 a5 b5 a4 h7 a3 h6 d2+ Ke2 d3+ Ke3 g4 b7 g3 b6 a2 Qe1 d1N+ Kf3 Kd4 e5 f6 e6 g2 e7 d2 e8Q Bc5 Kg3 Nc6 b8B Ba6 b7 Ra7 Qf7 Bf1 Nc3 Nb2 Rh2 d1B Bc7 Qf8 b8B Bde2 Nh3 Rb7 Ng5 Bb5 Kf3 g1R Rh4+ Rg4 Qfe7 Na7 Q7e3+ Kc4 Qe4+ d4 Q1e3 Rg1 Rb1 a1B Nd5 Rg2 Nb4 Rg4 Nh3 Rg7 Ng5 Rd7 c3 Kb3 Rg4 d3 Rf4 Ne7 Rh4 Ng6 Rg4 Rg8 h8Q Rgg7 h7 Ne5+ Kg3 Rge7 Qg8+ Ka3 Rf4 Ng4 h8Q Re6 Kf3 Reb6 Nd5 Ka2 Qf7 Qg7 Qc8 Qf8 Qfe6 Nc4 Rb3 Bb2 Nb4+ Ka1 Q6d5 Ba3 Qde6 Nb2 Q4c4 Be7 Rd4 Bd6 Q6e4 Bf4 Na2 Bc5 Ra3 Bc6 Ra6 Rb3 Nb4+ Ba4 Rc6 Bb5 Qe1 Bd2 Q1e2 Rf7 Q2e3 Rd7
5K1n/R1rNB1N1/2rP1Rb1/1B2Q1B1/1Q1q4/1N2np1P/3bp1kB/rn3rb1 w - - 0 1 illegal: No proof kernel
6NB/2n1Q2b/1Rp2q2/2PP1nr1/Qp1B1Q1Q/3k2b1/1bN3r1/RBr1nn1K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 b4 axb4 e4 e5 fxe5 dxe4 Kf2 Kd7 Kg2 Ke6 a4 Kf5 c4 g5 d4 b5 h4 c6 h6 g4 d5 b3 e6 g3 h7 b2 c5 f6 h5 e3 h6 Ke4 a5 e2 a6 f5 e7 f4 e8Q+ Ne7 a7 Bf5 Na3 b1R Bb2 Rc1 Nh3 Na6 Qd2 Bg7 Bd4 Rg8 h8B Nc7 h7 e1N+ Kg1 g2 Nc2 f3 Nf4 Bf6 Nh5 f2+ Kh2 Rc8 a8Q Rg5 Qa4 Bg6 Bc4 f1N+ Kg1 Be5 Ba2 Nf5 Qf4+ Kd3 Bb1 Qf6 Qe7 Rg8 Rh2 Qd6 Nf6 b4 Rh6 Rg7 Ng8 Qf6 Rh3+ N1e3 Kh2 g1B+ Kh1 Bf2 Rh4 Nf1 Rh3+ Kc4 Rha3 Rg2 Qa8 Rg5 Ra6 Kd3 Rb6 Bh4 Qa4 Bg3 Bg1 Bb2 Bd4 Rf7 Bg7 Rf8 h8Q Rd8 Qhh4 Bh7 Bh8 Re8 Qg7 Re2 Qe7 Rg2
N1Bb2r1/Q3bkb1/P2Q1B2/5b2/RB1R1n1Q/N3pn2/1BpP4/2Knqr1r w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 c5 h4 b5 a4 e5 f6 g5 a5 e4 h5 b3 d6 b2 d7+ Kf7 h6 c4 h7 b4 f5 b3 a6 c3 Rh5 g3 Nh3 g4 Nf4 g2 Qc2 g1B Kd1 g3 Na3 b1N Be2 b2 Qa4 g2 Qd4 Be7 Nd5 Nc6 Qa7 Bb6 Nc7 g1B Rh4 Ne5 Bg4 Qe8 d8Q Bgd4 Qd6 Rb8 Na8 Nf3 Qg3 Bd8 Qh3 Kf8 f7 Nf6 Qh1 Kg7 f8B+ Kf7 Bh3 Nd5 f6 Rg8 h8B Bf5 Rf4 Rb4 Bg4 Rb8 Qh4 Be5 Bh3 Rg1+ Kc2 Rh1 Rg4 Nf4 Bhg7 Ke6 f7 Rf1 Bf6 Bd4 Bg5 Bg7 Bf6 Rc8 Nb5 Rb8 Ra4 Rh1 Na3 Rc8 Kb3 c2 Ka2 Nc3+ Kb3 b1R+ Bb2 Bb4 Bc5 Ra1 f8Q Raf1 Bd6 Nd1 Bde7 Bba5 Bb4 Bab6 Qc5 Be7 Qd6+ Kf7 Ka2 Bd8 Ka1 e3 Ka2 Qf8 Ka1 Ne6 Rd4 Nf4 Bg4 Bd3 Bd7 Bf5 Ka2 Rb8 Bc8 Qh8 Ka1 Qh5 Ka2 Qg6 Ka1 Qg3 Be6+ Kf8 B2c3 Bc7 Bd7 Re8 Bc8 Kf7 Ka2 Bcd8 Ba1 Nf2 Kb2 Nd1+ Kc1 Qe1 Bb2 Rg8
2QKr1bb/2Q2QN1/P2PbRNn/8/1B1R1p1N/3q2n1/rrNpBn1r/6k1 w - - 0 1 illegal: No proof kernel
QbKq2b1/R7/PBp4k/r1r1b3/nn6/B2R2PB/Np1Nr1Qn/1bNN4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 b5 a4 e5+ d6 b3 f4 e4 d4 e3 a5 b2 g3 h3 d5 h4 f6+ Kh6 f7 h2 f5 h3 f6 b4 Qc2 b3 Nd2 b1R Ne2 Rb2 Nc3 e2 Nd1 Be7 f8N e1B f7 Nd7+ Kc6 Nb6 d7 Bd6 Ng6 Na4 Nf4 Nf6 Nd3 Ng4 Rg1 Ra2 Ba3 h1N Nc1 h2 Bh3 Nhf2 Qe4 h1B Qg2 Bf4 d6 Nh2 Rf1 Nd3 Rf3 Rg8 f8Q+ Rg7 Qe8 Rg5 Qe4 Ba6 Qe8 Bb5+ Kb7 Nb4 Rd3 Rc5 Qee4 Bc4 Qd5 Qf8 d8B b2 Qc6 Bg8 d7+ Qd6 Qcf3 Be5 Qd5 Bf2 Qc6 Ra6 Kc8 Qf6 Qa8 Re6 Be7 Be3 d8N B3f4 Nc6 Qf8+ Bd8 Re7 Nd4 c6 Nde2 Bb8 Nec3 Re2 a6 Qe7 Bb6 Bfe5 Rb1 Ra1 N3a2 Qf6 Rd7 Qd6 Ra7 Qf6 Qg1 Be4 Qg2 Beh7 Nd3 Qh8 Rc1 Be4 Rc3 Bg6 Ndc1 Bb1 Re3 Qf6 Rd3 Qd8+ Kb7 Qe7+ Kc8 Qh4 Nac3 Qd8+ Kb7 Nc2 Bb4 Ra3 N3a2 Nc3 B6a5 Ra4 Ba3 Nb4 Bc7 Raa5 Bb6 Qd6 Kc8 Na4 Re3 Qe7 Rd3 Qd8+
2b3K1/7P/r1r1p1kb/q1R1nrn1/1nQ4p/N1bRBN1N/1N4PR/1BrQ4 w - - 0 1 illegal: No proof kernel
3B1Rn1/1r1bb2p/2P1Q3/Bn2KN1P/B4rk1/1QB1p1nR/b4r2/Q2n1q1N w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 h4 Ke6 g4 a5 d4 f5 c4 e3+ Kf3 e2 c6 e1R g5 a4 b6 a3 b7 a2 c5 Re4 g6 Qd5 g7 Qd7 h5 Na6 b8B Ra7 c7 Rb7 Nh3 Qb5 c6 Bd7 c8Q Nc7 d5+ Kf6 d6 e5 Nf2 Kg5 Qa4 Be7 Bb2 Qc4 Nc3 Nb5 Rb1 a1N Nd5 Nc2 Rh3 Ne3 Qa1 Nd1 Bc7 Re2 Ne3 e4+ Kg2 f3+ Kg3 Qd3 Nh1 f2 Bc3 Qc4 B7a5 f4+ Kg2 f3+ Kg3 Rd2 Nf5 e3 Rb4 Qf7 Rf4 Rd4 Bc4 f1B Bb3 f2 Ba4 Bc4 Kf3 Rd2 Ke4 f1N Ke5 Rf2 Qb8 Ng3 Qc8 Be8 d7 Ba2 d8B Bd7 Qb8 Qc4 Qd6 Qf1 Qe6 Nh6 Qb3 Rf8 Rf3 Kg4 g8Q+ Bg5 Qgd5 Be7 Qe6 Kg5 Ng7 Rf4 Nf5 Ng8 Nd6 Rb4 Rf8 Rbf4 Nf5 Kg4
r2QN3/1r3Pb1/4p1n1/np2NQrn/2q2bB1/1kP1NNR1/2n3R1/2BQ2Kb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Kf7 h4 d5 f4 g5 Kf2 b3 h6 d3 h5 b2 h7 g4 f6 Ke6 a5 d4 c3 Kd5 f5 Kc4 h6 e6 f7 g3+ Kg2 Qc7 a6 Bg7 f8N Nf6 a7 Nc6 Be3 Ne5 Be2 Rg8 h8Q Ng6 h7 Nh5 Bg4 d2 f6 d3 f7 b5 Ra2 Bb7+ Kf1 g2+ Kf2 Qc6 Nf3 g1B+ Kg2 Qd5 Nd7 Bh2 Rg1 Bf4 Nf6 Rgb8 Qd8 Bc6 h8N Rb7 Ne8 Qe4 Qe2 d1R Bc1 Kb3 Na3 b1N Nc4 d2 Ne3 Qc4 Qdd3 Rf1 Qf5 Na3 Qd1+ Nc2 Kh1 Rf2 Rg3 Bd5 Kg1 Re2 Qf1 d1N Qe1 Nb2 Qd1 Rd8 a8Q Rg2+ Kh1 Be4 Qa5 Ra8 Qad8 Rd2 Kg1 Rd5 Qff6 Rg5 Qf5 Nh4 Ng6 Bd5 Ne1 Bh1 Ne5 Ng6 N1f3 Qe4 Ra6 Nc4 Rd6 Qc6 Rd2 Na5 Rdg2 Qc4
2Kb2q1/1Q2rp2/1Q2QnBk/1n1B1P1P/4b2R/NpQN2B1/1nr1b3/1n4rR w - - 0 1 legal: proof: d4 b5 b4 h5 g4 e5 dxe5 hxg4 a4 c5 axb5 cxb4 Kd2 d5 Kd3 g5 Kd4 a5 e4 a4 f4 a3 c4 g3 h4 g2 b6 g4 h5 g3 b7 b3 e6 a2 Ke5 d4 c5 d3 e7 d2 c6 Bf5 c7 Ra7 c8Q Bg6 Qf3 d1B Qcc3 Nd7+ Kd6 Be2 b8Q Ngf6 e5 Be4 Nh3 g1N Na3 g2 Qb6 Bg7 Rb1 a1N Nf2 Nc2 Nd3 Nd4 Rh4 Qa8 Bd2 Nc5 Be1 Na4 Bg3 Nb2 Rc1 Bh6 Ra1 Bg5 Rc1 Bg6 Qfb7 Ngf3 Kc7 g1R Bh3 Rg8 Bf5 Nd2 Ra1 Bh7 Bg6 Rc1 Rb1 Rc2 Rc1 Nb1 Rch1 Ra5 Q7a7 Qg2 Kc8 Rd5 Qab7 Rd7 Be4 Nb5 Bd5 Bf5 Be4 Bfg4 Bg6 Bgf3 f5 Be4 Bf2 B4f3 Bh7 Ne4 Be1 Bf6 Bf2 Qg7 Be1 Qf8 Bf2 Rg1 Bg6 Qg8 Bg3 Rc7+ Kb8 Kd7+ e8B+ Ke7 e6 Kf8 Bc6 Bd8 Bd5 Nf6 e7+ Kg7 e8Q Kh6 Qee6 Re7 Kc8 Be4
K1Rrkrnb/2BqP3/3B1P2/3rRQ2/1Nn1RNRn/3BQp2/pbb5/2n5 w - - 0 1 illegal: No proof kernel
1Bk1b1n1/Q3p3/r2BPRBK/6p1/1b1N4/BrrQ4/n1P1R2N/1nbb2Nq w - - 0 1 illegal: No possible last move
r2R1Q1b/1BRP3b/1n1Qn3/B2br2N/BN1Pk1Nr/3p4/3qnpK1/B5b1 w - - 0 1 illegal: No proof kernel
N1bqrkB1/2P3r1/1rnb2n1/2QbnN1p/N3R3/PpKB4/6Q1/2BRrB2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 b5 c4 d5 f4 e5 g4 h5 g6 e4 f6 d3 a3 d4 g7 b3 f5 b2 g5 b4 g6 b3 c5 Bb7 c6 Nh6 g8B Ng4 c7 Ne5 g7 Bd6 Qg4 Rh7 Bc4 Ng6 g8B Bc8 f7+ Kf8 Nf3 Rg7 Nc3 b1B Qg2 Nc6 Nh4 Ra6 Rh2 Rb6 Na4 Bc2 Rh3 Bd1 Rg3 Bf3 Rg4 e3+ Ke1 e2 Kd2 e1N Re4 Nc2 Ba6 Nce5 Rb1 Ke7 f8N Nb4 Nd7 Nc6 f6+ Ke8 f7+ Ke7 Rf4 Bd5 Bb5 Nb8 Re4 Nc6 Ndc5 Kf8 Nf5 Rb7 Nb6 Rb8 Na8 Rb6 Ke1 d2+ Ke2 d1R Na4 Re1+ Kd2 d3 Kc3 d2 Bbd3 d1R Bg5 Rd2 Rd1 Ra2 Bc1 Rae2 Ne3 Ke7 Rg4 Rf2 Rd4 Rf6 Rb4 Bc5 Re4 Re6 f8Q+ Kd7 Kd2 Re8 Kc3 Be7 Qff2 Bd6 Qfg1 Ke7 Nf5+ Kf8 Q1f2 Na5 Qc5 Nac6
r1r1R3/b1P3Nb/k2rr1R1/4bB1p/2K3PN/B2n4/nnRQpQ2/1Q1qR3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 e5 g4 h5 b4 d5 f4 Kd7 c4 Kc7 b6+ Kb7 f6 e4+ Kc2 d3+ Kc3 e3 f5 a4 f7 h3 c5 h2 b5 d4+ Kc4 d2 f6 a3 Ne2 a2 Nf4 d3 Ba3 Nc6 Ne6 Nb4 Ng7 Nh6 Rg1 h1R Rg2 Bd6 f8R Bb8 f7 Ba7 Rg8 Bf5 f8Q Bh7 Qf2 Nf7 Qc2 d1N Qcd2 Nc3 c6+ Kc8 c7 Kb7 Re8 Na4 Re6 Qd7 Rg6 Rhc8 Be2 Re1 Bf3+ Nd5 Be4 Qd8 Bf5 Nb4 Nc3 Re2 Re1 a1B Ne4 Be5 Ng5 Na2 Nf3 Qd7 Nh4 Qd6 Qb2 d2 Rh2 d1R Qd2 Nd8 Rg2 Ne6 Rh2 Nf4 Rg2 Re8 Rh2 Re6 Rg2 Nd3 Rh2 Kc8 b7+ Kd7 b8R Ndc5 b6 Kc6 b7 Kb6 Qc2 Red2 Qb2+ Ka6 Qf1 Rd5 Rd2 e2 Re8 Rd3 b8Q Rb3 Qd8 Rbb8 Qc1 Rc8 Rc2 Qd2 Qa1 Qc1 Qg5 Rdd6 Qd2 Qd1 Qf2 Nd3 Qb1 Nab2+
K5Qb/1QP1bN1B/p1B2n1b/2n2N2/Rp4NB/r2q2rR/Pr2k3/r2N3n w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kf7 Ke3 Ke6 f4 Kd5 c4+ Ke6 d4 h5 d5+ Kf6 Kd4 b5 g5+ Kf5 c6 a6 Kc5 e5+ d6 e3 c7 Ke4 Kb6 e2 Kb7 e1R c8N h4 g6 h3 d7 h2 c5 Qa5 d8N Qc3 f5 Qe3 f6 Rh3 g7 Qd4 c6 Qd7+ c7 Be7 f7 Nf6 g8B Qd3 f8Q Nbd7 Nf3 g1R Qb3 g2 Bg5 Rb8+ Ka7 Nc5 Nf7 Rb6 Bh4 Ke3 Ncd6 e4 Nc3 Rb1 Qa8 b4 Bh7 Rb2 N3e5 Rg3 Be2 Rb5 Bf3 Ra5 Rb1 Ra3 Qb7 Kd2 Qe6 e3 Ka8 e2 Nd1 e1B Bc6 Ke2 Nf5 Bd2 Ng4+ Be3 Qec8 Bh6 Qg8 Re1 Rc1 g1B Rc3 Bd4 Rb3 Nfe4 Rc3 Bh8 Rb3 Nf6 Rc3 Nce4 Rc5 Reg1 Ra5 Nc5 Ra4 Re1 Rf1 h1N Rf3 Rgg1 Rh3 Rg3 Ndf2 Rc1 Nd1 Ra1
1B6/2pb2nr/nrk1N1q1/B1NR3b/P1p1Q2Q/2R3rP/3b4/2QBKBrn w - - 0 1 legal: proof: f4 a5 g4 d5 c4 dxc4 b4 e5 fxe5 h5 gxh5 axb4 e4 Kd7 a4 g5 d4 b5 d5 f5 e6+ Kd6 e7 b3 e8B b4 h6 f4 h3 b2 h7 f3 Ne2 b3 Nbc3 b1B Nd4 b2 Bd2 g4 Bh5 g3 Qc1 g2 Ra3 g1R Ne6 Qf6 e5+ Kd7 d6 Kc6 d7 Qg6 d8B Nh6 Bh4 Bb4 Bf2 Na6 Ne4 Nf5 Rc3 Bd7 Ba7 Ng7 N4c5 Rag8 Bb8 Be4 Rh2 b1R Rg2 Ba5 Rg5 Rb6 Bg4 Bc2 Rh5 Bd1 Rf5 Rd8 Bh5 Rhg8 h8Q Rdf8 Bg4 Rf7 Qh4 Rg3 Nf4 Rg1 e6 Rg3 e7 Be2 e8Q Bd1 Be3 f2+ Kd2 Rg1 Rd5 Bb4 Qe4 Re7 Be6 Bh5 Bg4 Rg3 Nfe6 Ba5 Bfe2 f1N+ Ke1 Rg1 Bh6 Ng3+ Bf1 Nh1 Bg5 Ne8 Bh6 Rh7 Bd1 Ng7 Bg5 Rf8 Bd2 Rf3 Bb3 Bb4 Bd1 Rfg3 Rf3 Ba3 Ba5 Bb2 Rfd3 Bf6 Re3 Bg5 Rc3 Bd2+
2R5/QpNP1NB1/2nn4/N1K1qrQ1/bPpBR3/r2kB3/n3b1Br/1b2b3 w - - 0 1 illegal: No possible last move, all moves rejected
8/PR1Bpkr1/Q1Q5/b1nR1b1p/Q5N1/1Bn2r1P/nbq2RN1/b1R1K2r w - - 0 1 legal: proof: e4 a5 c4 f5 f4 g5 b4 d6 bxa5 d5 Bb2 Bg7 Be5 Bf8 cxd5 fxe4 f5 Na6 Bd6 Nb8 Bf4 gxf4 d4 b5 g4 c5 a4 h5 a6 c4 h3 b4 a5 b3 f6 c3 f7+ Kd7 g5 b2 g6 c2 d6 Ke6 a7 c1B g7 e3 d7 f3 d5+ Kf6 d6 e2 a6 Nc6 Qa4 Nd4 Nc3 b1N Nd1 Nc3 Nf2 Na2 Rb1 Rh7 Rb7 Qc7 d8Q Ne6 d7 Qc2 Qda5 Nc5 d8R Bf5 Rd5 Bb2 Ng4+ Kg6 Qc6+ Nf6 g8B Bg7 f8R Rd8 Qca4 Nfe4 a8Q Nec3 a7 Bh8 Be6 Rg7 Qa6 Rd6 Bd7 Rf6 Rc8 Kf7 Rh2 Ba1 Rf2 Rfg6 Nf6 Rg2 Ng4 Rh2 Bg2 Ne6 Rc4 Nc5 Qc8 Bb2 Qcc6 N3e4 Rcd4 Ba1 Bf1 Rg6 Rd1 Bhb2 Rg2 Nec3 Rb1 Rg7 Rc1 Qb1 Kd2 f2 Nf3 Qe4 Nh4 Qc2+ Ke3 e1B Bc4 f1R Bb3 Nb5 Re2 Bec3 Ng2 Ba5 Red2 Rf4 Ke2 Rf3 Ke1 Nbc3 Rf2 Rh1+
bn3BB1/PppbbP1r/Q2RN1R1/1nn3rk/3rQ1RB/5N2/3BK1q1/2r5 w - - 0 1 illegal: Other
n1BR4/pPr4Q/1r1BK3/nr3N2/1p1N1Bbn/k1N3q1/4Nn1P/1Rb3bQ w - - 0 1 illegal: No proof kernel
BQ3B2/R6Q/1q1rNb2/1nrb1rq1/N4npP/krr1R1N1/3BP1p1/B2K4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 g3 b4 Kd7 d4 Kd6 b6 g5 b5 c5 b7 a5 b6 f5 Nf3 g4 Qb3 a4 Qa2 a3 Ng5 f3 Qb3 f2+ Kd2 f4 Qb5 c4 Rh3 a2 Nh7 f3 Na3 c3+ Kd1 c2+ Kd2 Be7 Nf6 Ra5 Bg2 f1Q Qd3 f2 Nh5 Nc6 Nb1 Rh6 Nc3 Be6 Qh7 Nf6 b8B+ Qc7 b7 Na7 Be4 g2 Rf3 Bf7 Ng3 Nh5 Bb2 c1R Ba3+ Kd7 d6 Qb6 d5 Rb1 Bc7 Rb3 b8Q Rf6 Bc1 Rc5 Kc2 Re6 Bd8 Bg5 Be7 Bf6 Bf8 Qg1 Be3 f1R Bc1 Qd4 Bd2 Qe5 Re3 Rf4 Kd1 Rf3 Rc1 a1R Rb1 Ra2 Ra1 Rc2 Ra6 Qf4 Na4 Qg5 Ra5 Rf5 Ra6 Rc8 Bf3 Nb5 Ra7+ Kd8 d7 Rcc3 Bh6 Ke7 d8N+ R8c7 Be4 Kd6 Bf8+ Ke5 Bf3+ Kd4 Be4 Kc4 d6 Kb4 d7+ Rd6 Ba8 Bd5 Ne6 Bd4 Ne4 Nf4 Ng3 Rc5 d8B Ka3 Bf6 Rc2 Bd8 Bh8 Bf6 R2c4 Bd4 Bf6 Ba1 Rcc3
3bQ1q1/4QBBb/2N1rqB1/3Pr3/1Rp5/1n3pP1/B1nkN2R/n2n1nRK w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 d4 Ke6 b4 Kf5 d5 Ke4 b6 a5 b7 c5 b5 h5 e3 f5 g6 f3 b6 c3 g7 a4 g3 f4 Ra2 h4 Bb2 a3 Bb5 c4 Qa4 Kd3 e4 c2 e5 c1N e6 h3 e7 h2 e8B Na6 b8Q Nf6 g8B Be7 b7 Nb4 Qd6 Bf5 b8R Rh6 Qe5 Bh7 Ne2 Ng4+ Kf1 f2 Kg2 f1N Rg1 Nc2 Nd4 Nge3+ Kh1 Nb3 Nc6 Nd1 Bgf7 Re6 Nc3 Kd2 Ne2 Bg5 Bg6 Qf6 Bef7 Bh4 Rb6 Rae8 Qd6 Bg5 Qe7 Re5 Bd4 Re6 Rb2 a2 Qa8 a1N Ba4 Bh4 Rb4 Re5 Qea7 R8e6 Qe8 Na5 Bb3 Bg5 Ba2 N5b3 Bc5 Bh4 Bf8 Bg5 Qae7 Bh4 Kg2 f3+ Kh3 Bg5 Bg7 h1Q+ Kg4 Ke3 Bf5 Qfh6 Nf4 Na3 Qd6 Bd8 Qde7 Qf6 B5g6 Bg8 Rbg2 Qh2 Ne2 Qh8 Rf2 Bh7 Kh3 Qg8 Rfg2 Nfd2 Kh2 Nf1+ Kh1 N3c2 Rh2 Kd2
2B1b1RN/5N1k/n1q4P/PNr2r1r/R1Qr4/rK1QN3/p1p2n1b/1BB4q w - - 0 1 illegal: No possible last move
rn1rqQ2/2nq4/1NR2P2/Q1p4p/1q1BB3/1PB4q/1N1R2RB/2Kbqkb1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 Kd2 Kd6 f4 h5 g4 e5 g5 a5 f5 c5 g6 h3 b6 a4 f6 h2 g7 a3 b7 a2 b3 Rh7 Bd3 Ne7 g8R Nd7 b8B+ Qc7 Nh3 Rh8 Qe1 Bh6+ Nf4 e3+ Kc2 e2 Be3 e4 Kc1 Ba6 Rg2 Rd8 Nc3 Bc8 Qd2 e1Q+ Nd1 Bg5 Bg1 e3 Qa5 e2 Be4 Qb4 Nb2 Bh4 Be3 Bf2 Rd1 Bg1 Rd2 h1Q Bf2 Qh3 Be3 Nf8 Bf2 Ne6 Be3 Kd7 d6 Nc6 d5 Qcb7 Bd4 e1Q+ Kc2 Qee3 Kc1 Qa7 Bc7 Ba6 Bb8 Be2 Bc7 Bd1 Bb8 Kc8 d7+ Kb7 d6 Nc7 Nd5 Qe1 Nb6 Qe2 Bf5 Qe8 Bd3 Na6 Bc7 Ncb8 Bg6 Kc6 Bh7 Rc8 d8Q Qb7 Qe7 Rd8 d7 Qa7 Bh2 Nc7 Qf8 Qb7 N6a4 Kd5 Bf5 Q7b5 Bb1 Qbd3 Nb6+ Ke4 Bc2 Kf3 Bb1 Rc8 d8B Qh7 Bg6 Q7d7 Bc2 Nd5 Bdc7 Rd8 Bce5 Nc7 Bc3 Ke3 Bb1 Kf3 Be4+ Ke3 Rb1 a1Q Rd6 Bf2 Bed4+ Ke2 Re6 Kf1 Rc6 Qaa3 Ra1 Bg1 Ra2 Qaa4 Nd3 Qab5 Rad2 Q5c4 Nb2 Qe2 Bc2 Qf2 Be4 Qe1
3N2Q1/Q1R1bBr1/b1R1nPbp/3b2P1/4Q1n1/qkB1KNQ1/b5p1/1B1q1r2 w - - 0 1 illegal: No proof kernel
N1Q3RB/1N4qr/R2qp2R/bn1qP2K/k5q1/q1bBn2p/4Q2P/1r2RN2 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 b3 a5 b6 a4 Nf3 a3 Ng1 Bb7 Kd2 Bc6 Ke1 Ba4 bxa4 Ra5 Bh3 Ra7 Bf1 Ra8 f4 g5 Kf2 h5 Kg3 d5 c4 Kd7 e4 Kc6 f5 h4+ Kg2 d3 c5 d2 f6 g3 Kf3 h3 Kg4 d4 a5 e6 b7 d3 f7 Kb5 c6 g2 e5 a2 a6 Rh7 a7 Qd5 c7 Ne7 c8N Nbc6 Ne2 g1B b8Q+ Bb6 Nf4 Nd4 Qe2 d1Q Nd2 Nef5 Nd6+ Ka4 Nb7 Bb4 f8R B6a5 Qc8 Nb5 Rh8 Rb8 a8R Bc3 Ra6 Qd6 Rg1 Qd5 Rb1 a1Q Ba3 Qb2 Bf8 Qa3 Bg7 Qdd6 Nd5 Ne3+ Kg3 g4 Nc7 Qdb3 Re1 Qbd5 Kf4 g3 Kg5 g2 Na8 Qc7 Rg8 Qcc5 Bh8 Qcd6 Ne4 d2 Ng3 d1Q Kg6 Rf7 Kh5 Q1d4 Rg6 Rh7+ Rh6 Qd1 Qf3 Q1d4 Bd3 Qf4 Qf1 Qff8 Qe2 Qg7 Rgf1 g1Q Rf8 Na7 Nf1 Q1g3 Nd8 Rb1 Rg8 Nb5 Nb7 Q3g4+
nKn5/R1q2q1n/2PN1BQ1/N1p4r/3bp1Rr/5B2/1PkNn3/1Nn1RQ1b w - - 0 1 illegal: No proof kernel
2k1q3/1nN1Q2n/Kpq2P2/3q4/PNpB2R1/b1Rb2qr/4rQ1Q/1BQ3Nq w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 c5 Kc4 h5 Kb5 e5 g4 c4 d4 h3 f4 e4 a4 h4 d6 e3 g5 b6 d5 h2 g6 h3 f6 e2 f5 e1Q f7 b3 g7 b2 Nc3 b1Q+ Bb2 Qe5 Bd3 Ra7 Ra3 Qc1 Na2 Qec3 Nb4 Q1c2 Qc1 Qe2 Bb1 Nf6 g8Q Qee1 Qh7 Qcg3 Bd4 Na6 Rc3 Qee8 Qh4 Be7 f8Q Nh7 f6 Rc7 Qfh6 Nc5 Qhd2 Nb7 Ka6 Rc5 Qf2 Qc7 Qhh6 Qc6 Qhf4 Kd8 d7 Bd6 Qh4 Kc7 d8N Bf5 Qh5 Kc8 Ne6 Bd3 Nc7 Bf8 d6 Re5 Qhh6 Re2 d7+ Kb8 Na2 Ba3 Nb4 Qd5 Nf3 Qc6 Rg1 h1Q Rg2 Qd1 Ng1 h2 Qh5 h1Q Qh2 Qh3 Rg7 Qg3 Rg4 Qhd5 Nh3 Q1h1 Ng1 Qee6 d8Q+ Qc8 Qd6 Q8e8 Qe7 Kc8 Be3 Nf8 Bc5 Rh3 Bd4 Nh7
2Rb1Q2/qbbQ2P1/3QKqn1/1PprR1bB/8/2B1p2R/Q4N1b/2rN1kn1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 a5 g4 c5 f4 a4 d4 e3 b4 a3 b6 c3 b7 h4 d5 e2 d6 e1B b5 h3 d7 c2 Qd5 a2 Rh2 Rh5 Be2 Nc6+ Ke6 Ne5 b8Q Bg3 Rg2 h2 Qd1 h1Q Bf3 Bb7 Bd2 c1B Qd6 Bh2 Nc3 Ra7 Be2 Nf3 Nh3 Ng1 Rg3 Bg7 Nf2 Bf6 Rb1 a1B Rh3 Ra2 Rb4 Rc2 Re4 Qa5 d8Q Qf3 Q8d7 Qa7 Re5 Bab2 Be1 Be3 Qa1 Rc1 Ncd1 Bc3 Bd2 Ba5 Bc3 Bc7 Qa2 Bd2 Bd4 Bda5 Bb2 Bd8 Bc3 Bac7 Ne3 Nh6 Ned1 Nf7 Qaa6 Nh8 f5+ Kh7 g6+ Kh6 g7 Kg5 g8R+ Kf4 g5 Ng6 Qa2 Qc6 Rh4+ Kg3 Rh3+ Kg2 Bg4 Kf1 Rh8 Rh4 Bh5 Rd4 Rf8 Rd5 Re8 Nh8 g6 Bg5 g7 Ng6 f6 Qca6 f7 Q6b6 f8Q Qba6 Kf7 e6 Rf5 e5 Ke6 e4 Re5 e3 Ba5 Bde7 Rc8 Bed8 Bc3 Qa5 Be1 Qc3 Bd2 Qd4 Ba5 Qf4 Bc3 Qf6+
1q1b2b1/NBN1nBpb/2Bk1KNb/p3r2Q/1Rn1P3/1r5N/P2q2Rb/Q7 w - - 0 1 illegal: Other
nQqq4/R1b1rp2/5P1n/1N1KP1q1/rR1B1N2/2Bqp3/Q5Qb/Bqk2B2 w - - 0 1 illegal: No proof kernel
b1rk1B2/qRqp1r2/1nB1b1Np/3NP2R/3Q3q/1NK4n/2Q4P/q2QQ2q w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 c4 g5 e4 a5 b4 g4 f5 a4 c5 h6 b6 g3 b5 a3 c6 a2 b7 g2 c7 d3 b6 Qf6 Nc3 Nc6 b8Q Ne5 b7 Rh7 Ba3 Rf7 Bf8 Ne7 Qa7 N5g6 b8Q Qh4 f6 Nf4 Qb4 Nh3 Nge2 g1Q Bg2 f1B Qad4 f2 Nc1 Nd5 Nb3 Nb6 Nd5 Bb7 Kc3 d2 e5 Rc8 Rb1 a1Q+ Rb2 Rd8 c8Q Bc4 Be4 f1Q Qcc5 Qgg4 Rg1 Qff2 Bf3 Qe6 Rg5 Qc6 Rh5 Rc8 Bh1 Kd8 Qba5 Rg7 f7 Qc7 Qc6 Rh7 Qg6 Ba8 Qgc2 Qg1 Qb4 Qaa7 Qa5 Qg2 Qaa1 Rg7 Qe1 Qf1 Qad1 Qg1 Bf3 Qh1 Nb4 Bb7 Qdb1 d1Q Na1 Qe7 Bc6 Rg6 Bg7 Na8 f8N Rf6 Ng6 Rf7 Bf8 Be6 Nd5 Qh4 Rb6 Qc1 Nb3 Qca3 Qbd1 Qa1+ Kb4 Ba6 Rb8 Bb7 Kc4 Nb6+ Kd3 Q1a2 Kc3 Ba8 Rb7 Qa1+
1bR1r1BK/Q1pR2nr/2NQ2rr/1P1bq3/4rB2/p2Rq1n1/2B2P2/B1k3N1 w - - 0 1 illegal: No possible last move
2Qnrk1b/NpqRb1NQ/b2R1BP1/8/Kp4q1/Rr2B3/1nb4P/R4Bb1 w - - 0 1 illegal: No proof kernel
n2QQB1r/1pn2pKq/3N4/qr1Rr1bR/1P6/k1NB2QQ/r1r4P/3b2N1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 a4 Qb3 axb3 Kf2 Kd7 Kf3 Kd6 Ke4 c5 a4 g5 d4 c4 a5 f3 h6 g4 a6 b2 a7 c3 h7 g3 Ra5 c2 Nc3 b1Q Bh6 Nd7 Kf5 c1R+ e4 g2 Bd3 f2 e5+ Kc7 d6+ Kb6 e6 Ngf6 e7 Rc2 e8N Be7 d5 f1R+ Kg5 Re1 Bf8 Re3 Kh6 Re5 Rb5+ Ka6 Kg7 Nb6 d7 Qc7 d8Q Bg4 d6 Bd1 d7 Nfd5 Qb8 Bg5 d8Q Qc5 Nge2 g1R Nd6 Nc7 Qe8 Rf1 Ng1 Rff5 Qbd8 Rd5 Qe3 Rde5 Qg3 Qd5 Nf3 Qda2 Re1 Qa5 Ng1 Rb8 Qe8 Nba8 Rd5+ Kb6 Re4 Rc8 Rh4 Ra2 Rdd4 Rb5 Rd5 Re5 Rh5 Na6 Nce4 Rcc2 Nc3 N6c7 Be7 Rf8 h8Q Ka6 Qh6 Rh8 Bf8 Qc1 Rd4 Qf4 Rh3 Qe4 Nc4+ Nb6 Qhe6 Rbd5 Rh5 Rc5 Qeh3 Qf5 Rd7 Rcd5 Nce2 Kb5 a8Q Ka4 Qad8 Rb5 Rd5 Nba8 Nd6 Ka3 Nc3 Qh7+
q2r3n/PpB1k1r1/nq2B3/3rr1p1/KN5Q/br1b1QB1/1B2P1Q1/4RR1N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 f5 h4 g5 d4 c5 Kd2 c4 Kc2 f3 h6 f4 h7 c3 Kb3 c2 a5 f2 h5 f3 d6 Bf5 a6 Bg7 d7+ Kf8 a7 Nc6 h6 Rb8 d5 Bg6 d6 Nge7 Qd3 Bb2 Ka4 b3 Na3 Rg8 h8B Rg7 h7 Qb6 d8B Nb4 d7 Na6 Bc7 Rd8 B1f4 c1R Nh3 Rd1 Nc2 Ba3 Nb4 b2 Bg3 b1R Bg2 f1R Nf2 Be4 Bh3 Rb3 Be6 Ng6 Qd5 Rd4 Re1 Ke7 Rg1 Bc2 Nh1 f2 Qf3 Rd5 Qg2 Bd3 Qf3 Rf7 Bb2 Rg7 h8Q Re5 Qh4 Nh8 Rc1 Rd1 Re1 f1Q Qg2 Qf7 Rf1 Rd2 Rce1 Rdg8 Qf3 Qe8 Qg2 Qa8 Qf3 Bf5 Qg2 Re8 Qf3 Rdd5 d8Q+ Kf8 Qd7 Rd8 Qc6 Ke7 Qg2 Be4 Qc3 Bb1 Qcf3 Bd3
1q6/4k1nn/1qR4r/1Q2N2Q/Bb3P1R/2PB2rR/bqKNqRpp/B3b3 w - - 0 1 illegal: No proof kernel
2rq3k/1Q1bN3/2rR1Nr1/RR6/Qb1P2q1/pQ1rnbP1/BB1p4/1n1Q1K2 w - - 0 1 illegal: No proof kernel
Q1RB2B1/1r6/q1NQ1QQb/K4n2/1p2pqP1/k2b1nBN/2n1n1Pr/1R4q1 w - - 0 1 legal: proof: e4 d5 b4 a5 c4 axb4 cxd5 g5 h3 g4 hxg4 f5 Qb3 fxe4 Qf3 Qd7 Qd1 Qd8 a4 Kd7 f4 Kd6 d4 h5 Kd2 b5 a5 e5 f5 c5 a6 h4 f6 h3 a7 b3 Kc3 e3 f7 e4 Qd2 b2 Qc2 h2 Nd2 b1N+ Kb3 c4+ Kb4 e2 Ngf3 e1N Qb2 c3 Bc4 c2 Ne5 Qc7 Nc6 Na3 Rb1 Bh6 f8Q+ Ne7 Qe8 Ba6 Nf3 Nf5 Ng5 Nf3 Nh3 Qf7 Rf1 h1Q Ka5 Qg1 Qc3 Qe6 Qg6 b4 Bg5 c1Q Bh4 Qf4 Bg3 Nc2 Rfc1 Rh7 Bb3 Rb7 Ba2 Kd7 d6 Bd3 Qc5 Qc4 d5 Na6 Qf2 Rh8 a8Q Nc7 Qd4 Ne6 Qdf6 Ned4 Bb3 Ne2 Ba2 Rbb8 Bb3 Kc8 d7+ Kc7 d8B+ Kd7 d6 Rb7 Na7 Qc8 Bg8 Qc4 Nc8 Kc6 d7+ Kc5 Na7 Rh7 Nc6 Rh8 Ne5 Kd4 Qd6+ Kc3 Nc6 Rh7 Bb6 Rh8 d8Q Rhh7 Q8f8 Rh8 Bd8 Rhh7 Ra1 Kb2 Rab1+ Ka3 Qff6 Bg5 Nf2 Rh2 Nh3 Bh6 Qfd4 Qf7 Na7 Nce3 Rc8 Nc2 Q4f6 Qc4 Nc6 Qa6+
3B1bN1/1B2B2b/4N2Q/1R1R1NBn/p1P2pQ1/qrP2b2/1rrq1r1K/1k5n w - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 f5 b5 axb5 c4 d3 e6 dxc4 exf5 Rh3 f4 Rh2 Qc7 Rh1 Qd8 Kf2 Ke7 g4 Ke6 Kg2 Ke5 b4 Ke4 g5 d5 e3 h5 c3 f5 b6 a5 b5 a4 g6 f3+ Kh2 f2 b7 f4 b6 h3 g7 d4 Bd2 d3 Be1 d2 Bg2+ Kd3 e4 f1R e5 h4 e6 Nh6 g8N Qd6 e7 Qa3 e8Q Nd7 b8B Nf6 b7 Bf5 Qe5 Nh5 Qf6 Bh7 Qg4 Kc2 Bc7 d1Q b8B Qd2 Bd8 Nf5 Qh6 Nfg3 Bd6 Rf2 B6e7 Rb8 Nf3 Rb3 Ng5 Kc1 Rg1 Nh1 Ne6 Kb2 Nf6 Rg8 Rf1 Rg5 Ng8 Rgb5 Ra2+ Kc1 Rg1 Rb2 Bg5 Rc2 Rb2 Rb3 Bde7 Qa1 Na3 Qa2 Nb5 Qa3 Ra2 Kb1 Rb2+ Ka1 Nd6 Qc1 Bgf6 Rf1 Qhg6 N1g3 Nc5 Rb8 Qh6 Rb5 Rb4 Rb2 Bd8 Kb1 Nf5 Rb8 Rb5 Qc2 Ra5 R8b3 Bf2 Rc1 Be1 Qd1 Bfe7 Rcc2 Rb5 Qd4 Rf1 Qd7 Rf2 Qd6 Re2 Qd2 Kg1 h2+ Kf2 h1R Ne6 h3 Bb7 h2 Kg2 Rf1 Bf2 h1B+ Kh2 Bd5 Re5 Bg2 Red5 Nh1 Bfh4 Rf2 Bhg5 Bf3+
B4rQ1/2r5/1kn1R2q/1Nn3pR/nR1RQ1Pn/rp2P3/2NBQ3/K3bb1q w - - 0 1 illegal: No possible last move
6qq/3R2bk/q1N1QBR1/b1nKNP1r/ppn2QQ1/2B2r2/P5nq/3Q1B2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kf7 Ke3 Kg7 c4 a5 f4 e5 d4 h5 f5 b5 c6 h4 d5 h3 c7 h2 c8Q Nd7 d6 Kh7 g5 Nh6 c5 Qb6 Ne2 Bg7 Bb2 Nf7 Qb8 Qa6 c6 Nc5 d7 Nd6 Rg1 h1Q d8B a4 Qc7 Rc8 Bf6 Qh2 Nd4 Nc4+ Ke2 b4 Bc3 e3 Kf3 e2 Na3 e1Q Qd6 Rcd8 c7 e4+ Kf4 e3 c8Q e2 Qce6 Rde8 Nc6 Qd2+ Kf3 Qb2 Qf4 Rd8 Rb1 Qa1 Rb2 Rd6 Rd2 Rd3+ Kg4 Rf3 Rd7 Nb6 Nc4 e1N N4e5 Nc4 Qe7 Kg8 g6 Rh5 Rh1 g1Q Qe8+ Bf8 g7 g2 Qe7 Kh7 Qe6 Qd4 Rg1 Qd5 Qe8 Qg8 Qe6 Rh6 Rh1 g1B Kg5 Bf2 Rg1 Rh5+ Kg4 Rfh3 Rg3 Ng2 Kf3 Nb7 Ke4 Bb6 Rg6 Ba5 Kd4 Nc5 Kd5 Rf3 Rg4 Ne1 Be7 Re3 Nf3 Qg2 Bd2 Qf7 Bh4 Qaf6 Bc3 Qh2 Nfe5 Ng2 Rg3 Qd8 Bf6 Rf3 Rg5 Qfe8 g8Q+ Kh6 Qgf7 Bg7 Rg4+ Kh7 Qg6+ Kh8 Qgg5 Kh7 Qh4 Qh8 Rg6 Qde8 Qhg4 Qeg8
2kqN1b1/2BbqB2/4b1Q1/Bnq1bP1P/6R1/2p1Qr1B/3p2rN/1NKn3R w - - 0 1 illegal: No possible last move, all moves rejected
7q/2Q4q/n2Bq3/1N1nqpr1/b1Rn1kBN/1R1PNP2/N4Kpb/1Q1B2r1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 hxg4 c4 Kd7 h4 Ke6 d3 Ke5 h5 a5 c6 f5 b6 g5 f3 a4 b7 a3 h6 a2 c7 e3 c5 g3 c6 e2 h7 g4 Bh6 g2 Nd2 g3 Rh4 Bd7 c8B Nf6 c7 Ba4 Rb1 a1Q Be6 Nd5 c8N Rg8 h8N Qd7 Na7 Rg5 Rb3 Na6 Nb5 Rc8 Rhb4 Rc1 Nc4+ Kf4 b8Q+ Qc7 Bg8 e5 Ne3+ e4 Rc4 Bd6 Bf8 Qh7 Qc7 Qag7 Bf7 Ra1 Qb1 Qe5 Kd2 e1N Ke2 Nc2 Bh5 Nd4+ Ke1 Qe6 Be2 Qe5 Bg4 Qe6 Nc2 e3 Bd1 Be5 Bd6 e2 Nb4 Ke3 Ng6 Qh8 Nh4 Kf4 Nc2 Qh7 Kd2 e1Q+ Kc1 Qe4 Kd2 Qh8 Ne3 Qh7 Ba3 Bd6 Ke1 Q4e5 Bb4 Qhh8 Be2 Q5f6 Qd1 Ke5 Bf1 Rb1 Ne2 g1Q Nhg2 Rb2 Qb1 Qgh2 Nc1 Q2h7 Nh4 Rg2 Na2 Rg1 Ba3 g2 Kf2 Qfg7 Be2 Kf6 Qb6 Bh2 Bd1 Ke5 Qa5 Kf4 Qc7+ Qge5 Be7 Q8g7 Bd6 Qgh8
2q1QR2/2r2q2/B3NB2/Kn1bP1n1/1pkqQR2/bpP2QQ1/N7/1Rq2r1b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 h4 Ke6 a4 Kd5 c3 g5 h6 f5 h7 b5 a5 b3 e3 f4 h5 g4 h6 f3 a6 d3 a7 f2 e6 g3 e4+ Kc4 e7 d5 e8Q g2 e5 d4 Rh2 Ba3 Nf3 g1Q Rh4 Na6 Rf4 Bb7 Ng5 Bh1 Ne6 Qc8 Qf3 Nc7 Qg6 Nf6 Qgg3 Rb8 a8Q Rf8 h8R Nh7 Qae4 Ng5 h7 Rb7 Be2 Rf5 Rf8 f1Q h8Q Qff2 Qgh3 Qg4 Qhg3 Qh5 Qg8 Qf7 Qh8 Ne8 Qg8 Nd6 Qg6 Rc7 Qgh5 Qf6 Qe8 Qf7 Qfg2 Bc5 Ba3 Bb4 Kc1 Qe1+ Kb2 Qd1 Rf3 Rf4 Qh7 Kd5 Q2f2 d2 Qd3 Re4 Rf4 Qg1 Qf1 d1Q Qff3 Qe3 Qc2 d3 Bf1 Bc5 Bb4 d2 Na3 Qg1 Rb1 Qd4 Qcd3 Qe1 Nc2 Qe3 Ka3 d1B Qfg4 Be2 Q4f3 Qd2 Qde3 Bc4 Qee1 Bb6 Bc5 Qc1+ Kb4 Ba7 Qfe2 Re3 Ka5 Rf3 Q2d1 Rf2 Bd3 Rf1 Qdf3+ Nde4 Bd6 Bc5 Be7 Bd6 Bf6 Ba3 Nd8 Kc5 Nb4 Bd5 Na2 b4 Ba6 Nd6 Qee4 Nb5 Ne6+ Kc4
3B1N2/nQqbb1Q1/2B2b2/1R1P1Qr1/1b4P1/2q1N1R1/rrpQ2p1/1k3nBK w - - 0 1 illegal: No possible last move, all moves rejected
N2RRBQ1/R6r/B4N2/rQP2b1q/3ppP1k/1n1n4/bNq2b2/4bRnK w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 Kf7 g4 Kf6 c4 h5 b6 a5 b5 e5 f3 d5 Kf2 h3 b7 h4 b6 a4 Ra2 h2 Kg2 h3+ Kf2 d3 Ba3 Kg5 f6 e4 f7 d2 f4+ Kh4 g5 Nf6 g6 Nfd7 g7 Nc5 g8N Bf5 Qc1 d1B Nd2 Qc8 Qb2 Nba6 b8R Bb3 b7 Nb4 Nf6 Ra5 Ne2 Rh7 Nc3 d4 Ra1 Be7 f8R Ba2 Re8 Nb3 Nb5 Qc7 Rg1 h1Q Rbd8 h2 b8Q Qc8 Be2 Nd3+ Kf1 Bb4 Nc7 Bc3 Be7 a3 Na8 Qc7 Bf8 Qc5 Nb1 Be1 Nc3 Bf2 Na4 Qf3 Qb5 Qh5 Kg2 h1N Rgf1 Ng3 Qb1 Qc7 Nb2 Qc6 Qd5 Qa4 c5 Qc4 Qg8 Qc2 Bd1 Ne2 Kh1 Ng1 Be2 Ne5 Re6 Ra6 Rb6 Nd2 Rd1 Bc4 Na4 a2 Rf1 Bd5 Bc4 Nd3 Re6 Raa7 Ree8 Bde6 Qb7 Bf7 Rae1 a1B Qa6 Bc3 Ra1 Bd5 Nb2 Bf7 Ra5 Bd5 Bb5 Ba2 Ra3 Nb3 Qc6 Rab7 Ra7 Bce1 Ba6 Rb5 Qb7 Ra5 Qd7 Qhd1 Qb5 Qh5
2bK2qB/6RQ/nn1br3/1NP1q1R1/pk3pr1/4q1QP/3NB1B1/rB1R2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 f5 Kf4 d5 Kg5 a5 b4 a4 e4 g3 c4 g2 b6 g6 c5 d3 e6 d2 e5 d4 b7 d3 b5 Qd4 h3 Ra7 b6 Bg7 Nc3 Qd5 Nf3 g1R+ Bg2 Na6 b8R Nf6 b7 Rh4 Qc2 d1R Nd2 Bf8 Nb5 Nd7 Bb2 Nb6 Rh2 Kd8 Kf6 g5 e7+ Kd7 e6+ Kc6 Kf7 g4 Ke8 g3 Bh8 Qf3 Kd8 Rg4 e8B+ Kd5 e7 f4 Bh5 Rb1 e8B Bd6 Beg6 Kc6 Ra2 Ra1 Rh1 Qd5 Ra8 Qe4 b8Q Re7 Qc3 Re6 Ra7 Kd5 Qc7 Qf3 Bf1 g2 Qh7 Qe3 Rg7 Kc6 Rc2 Kd5 Rc1 Qe5 Rd1 Qe3 Nb3 d2 Bb1 Qe5 Qg3 Qe3 Re1 d1Q Nd2 Qde2 Rd1 Qe5 Rh2 Q2e3 Rh1 Rgg6 Bhe2 Rg4 Nc7+ Kd4 Rg5 Kc3 Nb5+ Kb4 Rh2 Rh1 Rg7 g1Q Rf2 Qb3 Bg2 Qe1 Rf1 Rg1 Rf3 Qf2 Rd3 Qfe3 Rd5 Q5e4 Rdg5 Qe5 Rf5 Qc2 Rfg5 Qg6 Qh6 Qf7 Qh7 Qg8+
rQR1qnnr/5K2/RN6/b1p1R3/b1P3r1/Nk2P3/3qB1p1/2rNBRqQ w - - 0 1 legal: proof: a4 b5 axb5 e5 Ra4 e4 Ra1 e3 dxe3 Qe7 Ra4 Qf6 Ra1 Qd8 Nc3 f5 Nb1 f4 Ra5 f3 Ra4 Bb7 Ra1 Bc8 g4 fxe2 Kd2 h5 Ra3 hxg4 Ra6 Qg5 Ra1 Qd8 Kd3 Kf7 Kd4 Ke6 h4 e1Q f4 a5 b4 g5 c4 d5 f5+ Kd6 b6 g3 f6 a4 b5 c6 b7 g2 h5 a3 f7 g4 h6 g3 h7 a2 b6 Ke6 Na3 Bb4 f8N+ Kd6 Ne2 g1Q Bd2 g2 Nd7 Qe8 Nc3 Ba5 Be2 Qef2 Rh5 Qfe1 Rc1 a1R Re5 Qef2 Be1 Rb1 Nf8 Nd7 b8R Ba6 b7 Bb5 Rc8 Ba4 b8R Rb5 Rb6 Rc5 Ng6 Nf8 Ra6 Rb5 Nf4 Rb6 Kd3 d4 Ke4 d3 Kf5 d2 Qb3 Rb7 Nd1 Rg7 Rb1 Rg4 Rc1 Qh4 Nd5 Kc5 Qb8 Qhd8 Nb6+ Kb4 Ra1 c5 Rc1 Ne7+ Kf6 Kb3 Ra1 Qb5 Kf7 Ng8 Nb2 d1R Rb1 Rc1 Ra1 Ne7 Nd1 Rhg8 h8Q Qd2 Qh1 Rh8 Ra2 Ng8 Rc2 Qd4 Rd2 Qd6 Rd4 Qd8 Rf4 Qd2 Rf1 Qe8+
1k1B1R1b/8/Q2r1NB1/qpq3R1/q1P1N3/QbNN1n2/pn1brQ1P/5K1b w - - 0 1 illegal: No proof kernel
5BKn/nQ1N1Qr1/8/Np1BP1r1/qpr1rRbb/3NP3/3k1N2/q3q1QR w - - 0 1 illegal: No possible last move, all moves rejected
3B1RR1/2Rq1B1k/n3q2p/2N2bB1/2Qn1rBb/K1N1Q2P/4pPbn/2b2r2 w - - 0 1 legal: proof: e4 b5 a4 f5 g4 d5 gxf5 dxe4 axb5 c5 b4 cxb4 c4 Kf7 d4 a5 Kd2 e5 Kc2 g5 Kb3 Kg7 d5 e3 h3 a4+ Ka2 g4 c5 a3 c6 g3 c7 e4 d6 h6 b6 e2 b7 e1Q f6+ Kh7 d7 g2 f7 e3 Qd5 Nf6 Ne2 g1N Qa5 Na6 b8B Bb7 c8B Be7 f8R Bg2 Bh2 Nf3 Qc7 Ng4 Nd2 Bh4 Nb3 Nd4 Rg1 Rb8 Be5 Nh2 Qc4 Qe8 d8Q Qd7 Nc5 b3+ Kb1 a2+ Kb2 Rb7 Ka3 b2 Qe8 b1B Nc3 Bf5 Bf6 Rb1 Bd8 Rg8 Bd2 Rg4 Qe4 Rd1 Rc1 a1B Be2 Rf4 Bh5 Qe2 Bf7 Rf1 Qe7 Qg4 Qe8 e2 Qe3 Qg6 Rc2 Qge6 Bc1 Bb7 Rgg8 Bg2 Qe5 Rf3 Bcg5 Rf4 Qe3 Nb8 Bb7 Na6 Bf3 Bb2+ Ka2 Bc1 Bg4 Bd2 Ka3 Bge4 Rb2 Bd5 Rb7 Bg2 Rc7 Bc1+
k7/N3Q1K1/1Q3qp1/2RqB1n1/N1NB1r1P/R2qp1b1/R1r1brP1/2nr2R1 w - - 0 1 illegal: No proof kernel
K1q5/N3r1kb/q2nn1pR/5pP1/NPbRB1QQ/4BNBB/4n2b/r6b w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 c5 Kf3 h5 Ke4 a5 d4 h4 b4 h3 g4 a4 b6 a3 b7 f3 d6 f5+ Kd5 Kf7 e4 a2 d7 f2 d8Q g6 e5 c4 e6+ Kg7 e7 c3 e8B c2 Qh4 Rh7 g5 Na6 Kc6 Nc5 b8B Bd6 d5 Nh6 Nc3 Be6 Qdg4 Nf7 Be3 c1N Na4 Ne2 Rd1 a1Q Rd4 Ra5 Bg2 f1B Nf3 Bg3 Kb6 Nd6 Bc6 Bg8 Ba8 Qg1 Kc6 h2 Bh3 Ne6 Bc7 Nb5 Kb7 Qf2 Bcf4 Nd6+ Kb8 Ra7 Bc6 Re7 Ka8 Rh6 Bb7 Bh7 Bc6 Qfe1 Bb7 Qec3 Bc6 Nc4 d6 Qa2 d7 Nd6 d8N Qcc2 Rg1 h1B Be4 Bh2 Nc6 Qac4 Rg3 Qa6+ Na7 Qc5 Bg2 Nc1 Rh3 Bc4 Bf1 Bg1 Qhg3 Ne2 Rh4 Bg2 Rh2 Rh3 Qf2 Rg3 Rh5 Bh1 Bh3 Bh2 Rh6 Rg1 Qfh4 Ra1 Bg3 Qcc8#
k1KB1B2/3rbbn1/2nbn1p1/BBRp1Q1N/2q2Q1P/7N/N2P3R/qr2n3 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 f5 axb5 fxe4 g4 hxg4 Ke2 d5 Ke3 Kd7 Kf4 Kc7 Ke5 Kb7 c4 a5 h4 e6 f4 e3 f5 e2 f6 e1N c6+ Ka7 f7 g6 c5 g3 c7 a4 b6+ Kb7 Ba3 g2 Rh2 Be7 f8B Nc2 Qg4 Nd4 Bb4 a3 Bb5 a2 Nh3 g1B Ba5 Rh7 Qf4 Nh6 Nc3 Nhf5 Rc1 a1Q Na2 Ng7 Rc4 Ra7 c6+ Ka8 Rc5 Bd7 c8Q Be8 c7 Bf7 Qd7 Rb7 c8N Qc7+ Nd6 Bf2 Qc8 Bg3 Qd7 Qc6 Ne4 Qc8 Nf6 Qc6 Rc1 Qc4 Rc3 Bc5 Nh5 Nbc6+ Kf6 e5 Qdf5 e4 Rc1 e3 Rc2 Rd7 b7+ Ka7 b8B+ Ka8 Bbd6 e2 Bde7 e1N Bed8 Nde6+ Rc3 Ncd4 Rc1 Be7+ Ke5 Qb4 Rc7 Qc4 Rc5 Rb7 Ba6 Rb1 Bb5 Bf6+ Kd6 Be7+ Kd7 Nc6 Qh6 Bb8 Qhf4 Bbd6 Kc8 Ne8 Q4g5 Bg8 Qg2 Bf6 Qge4 Rd7 Qff4 Bfe7 Qee5 N8g7 Qef5 Bf7
1b3B1K/1k3qR1/1b2bP2/n1Q2NNQ/N1r1qp2/3Q1Pn1/1NprB2b/1R1n4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 Nh3 gxh4 Ng1 f4 Ra4 Qd5 Ra1 Qf5 exf5 Kd7 Bd3 Kd8 Bf1 Ke8 Ke2 Kd8 Kf3 e5 Kg4 h5+ Kg5 a5 Kg6 c5 g4 Kc7 b4 c3 d4 h3 g5 h4 b6+ Kb7 b5 a4 d5 h2 d6 a3 d7 a2 d8Q e4 f6 h3 Q8d5+ Nc6 Bd2 e3 Be2 c4 Na3 c2 Qc5 c1Q Bb4 c3 Qd3 Bd6 Kg7 Nge7 g6 Ra4 Nf3 Rd8 Nc4 Nd5 Rg1 h1N Ng5 h2 Rb1 a1B Nb2 Ng3 f3 h1Q Rg2 Qhe1 Ba3 Rd7+ Kh8 Na5 g7 Rc4 g8N Bb8 Ne7 c2 Bb4 Qcd2 Nf5 Nc3 Rg1 Nd1 Ba3 Be5 Bb4 Rd6 Ba3 Be6 Rg2 Kb8 b7 Rd7 Bb4 Bc7 Rg1 Bb6 Ba3 Ka7 b8N Kb7 Na6 Qb4 Rg2 Qb3 Rg1 Ba7 b6 Bb8 Qcd4 Qa2 Bf8 Rd5 Qc5 Qb4 Bf1 e2 Rg2 e1B Be2 Nf1 Rg1 Bg3 Rg2 Bh2 Rg4 Qb5 Rg3 Qc6 Rg4 Kc8 b7+ Kd7 Qce3 Ng3 Nh7 Qc8 Qdd2 Kc6 Nc5 Bf7 Nh6 Bc7 b8Q Qb7 Nca4 Rb4 Nc4 Bd4 Rg7 Qa8 Qc8 Bb6 Qf5 Bb8 Qh5 Rd3 Qc3 Rd2 Ng5 Kc7 Nf5 Qe4 Qg1 Kb7 Ncb2 Qae6 Qgc5 Rc4 Q3e3 Qd7 Qc3 Be6 Qd3 Qf7
1N1BkB1b/1b6/3q1p1B/Q2qrn2/1NBpq2Q/1rP3QR/P4K2/b2Rnb2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 e4 g5 h4 b5 h6 d5 h7 b3 e6 g4 h5 b2 e5 d3 e7 b4 h6 b3 Nf3 g3 Nd4 g2 Nc6 g1B Na3 b1Q Qd2 b2 Rh3 Bd4 Qa5 Na6 Nb8 Nc5 c3 d2+ Ke2 Bb7 Nc2 Qd6 Nb4 Nd3 Kf3 d1Q+ Kg2 Nc5 Bc4 Nd3 Be3 Ne1+ Kf2 Qe4 Rc1 Qb3 Rd1 Ba7 Bc5 b1B Bb6 d4 Bd8 f6 Bf1 Qbd5 Bc4 Kf7 e6+ Kg6 N8a6 Bc5 Nb8 Bd3 e8Q+ Kg5 e7 Bg7 Qa7 Bf1 Qa5 Kf5 Qd7+ Kg6 Qg4+ Kf7 Qh4 Ra6 Qg3 Rb6 Qh4 Ke6 e8Q+ Ne7 Qeb5 Re8 h8B Kf7 h7 Nf5 Qc6 Re5 Qc7+ Qe7 Qd6 Ke8 Qc7 Bf8 Bg7 Qed6 Bh6 Bg7 h8B Rb5 N4a6 Ba3 Nb4 Bc1 N8a6 Bb2 Nb8 Bf8 Qg7 Ba1 Qgg3 Rb6 B8g7 Rb5 Bg5 Rb6 B7h6 Bg7 Bd2 Bh8 Bf8 Rb5 Bdh6 Rb6 Nc2 Rb1 Nb4 Rb3
bNn1b3/1B1QR3/3Nnp1b/1rP2Q1q/Qq2q3/5PpR/Kb5B/2kNrN2 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 hxg4 a4 e5 axb5 exd4 Kd2 Ke7 h4 Ke6 e4 Ke5 c4 Kf4 h5 a5 c6 d5 b6 g5 e5 d3 Kc3+ d2 Kb2 a4 h6 a3+ Kb3 g3 c7 g2 c5 f6 b7 a2 h7 g4 e6 d4 e7 d3 e8N g3 Rh3 Nc6 b8Q Bh6 Nc3 Qe7 Kb2 Nd4 Qbb3 Ra5 Qa4 Qe4 Nd6 Ne7 Nf3 g1Q Nh2 Bd7 c8N Be8 Nb6 Nc8 Bg2 Ne6 Nd7 Qe1 Nb8 Rb5+ Ka3 Rg8 h8Q Rg7 Nf1 Re7 Rb1 a1B Qh7 Bb2+ Ka2 Qb4 Bb7 Qee4 Qdc2 Kf3 Qf7 d1B Be3 d2 Qd3 Bc2 Re1 d1Q Qd5 Qe2 Nd1 Bd3 Bd4 Kf4 Qh7 Qh5 f3 Bc2 Bg1 Bd3 Qdb3 Bc4 Bh2 Bd5 Ba6 Ba8 Bb7 Ke5 Qa7 Kd4 Qba4 Kd3 Qf5 Bg7 Q4a5 Kc2 Qc7 Kc1 Qa4 Bh6 Qd7 Qed4 Re4 Qd3 Rg4 Qde4 Rg7 Nd8 Rf7 Re5 Rg7 Ne6 Re7 Qeg4 Qc7 Re1 Qd7 Qge4
6B1/6K1/b1n1PQ2/k1NNRNRP/2p2B2/N1r2pn1/n3q1nQ/2rq1rbQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 Kc7 h4 Kb6 h5 g5 d6 a5 d5 f3 Kg3 a4 d7 a3 e5 a2 d6 f2 Na3 Bh6 Ne2 Ne7 Nc3 Ba6 Rg1 Nbc6 Bc4 f1Q Bf4 Ng6 Bg8 c4 e6 Qe2 Rg2 Bg7 Qh1 Nh4 Re1 a1R Rgg1 Rc1 Nd5+ Kb7 b6 Bd4 b5 Ng2 Bf7 Rf8 Bg8 Qe7 d8Q Qd7 Qf6 Rc3+ Kh2 g3+ Kh3 Qd8 d7 Rf7 Bd6 f4 Bb8 f3 Kg4 Rg7 Kf5 g4 Bf4 Bc5 Qe7 Rg5+ Kf6 Re5 Rgf1 Bg1 Kg7 Ree3 Rf2 Rc1 Qf6 Rec3 Rff1 Nh4 Rf2 g2 Rff1 g3 Rf2 Qd1 Re5 Qb8 Rg5 Qe5 Re2 Qe3 d8Q Qed2 Ree5 Q2e2 Qdf8 Rd8 Nc7 Rd2 Qd6 Ra2 Nd5 Raa1 Qfd8 Bc5 Q8f8 g1N Qf6 g2 Qc7+ Ka8 b7+ Ka7 Qd6 Rab1 b8N Bd4 Nb4 Kb6 Nd5+ Ka5 b6 Qdf1 b7 Qef2 Qff8 Rd1 Nd7 Ne2 Bg3 g1N Qf6 Ng2 Re3 Nc1 Nc5 Nge2 Qf4 Ra1 Ree5 Na2 Qfh4 Q1g1 Bf4 Ng3 Q4h3 Qe2 Q3h2 Rac1 b8N Nd8 Ne7 Bf2 Nbd7 Nc6 Nf5 Qgf1 Nb6 Bg1 Nd5 Qfe1 Re4 Q1d2 Re3 Rf1 Re5 Qdd1
2B5/2NK1n2/R1Rnp2q/2q1N1N1/BBr2kb1/P1n1N3/r2P2pb/3Qr1rQ w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 b5 d6 c5 d7 g3 Ke6 g2 h4+ Kf4 h5 g5 h6 b4 h7 e3 a6 e2 a7 c4 Rh6 c3 Nf3 g1Q Na3 e1R+ Ne5 b3 Bb5 g4 Nc2 b2 Ba4 b1N Ne3 g3 Ba3 c2 Bb4 Nf6 f3 Rg8 h8Q c1R Rg6 g2 Qh1 Nc6 a3 Rb8 a8B Ne4 Bb7 Qb6 Ra2 Rg7 Rc2 Nd6 Rc5 Nc3 Rh6 Na7 Rc6 Rg4 Rg6 Nab5 Rf6+ Kg3 f4 Nf7 f5 Rc4 Rh6 Qa6 f6 Kf4 Rg6 Nbd6 Rh6 Nh8 f7 Ra1 Rg6 Ra2 Rh6 Bg7 f8N Nhf7 Nh7 Qb6 Ba6 Qc5 Ng5 Qh2 Ba5 Rb1 Bb4 Rg1 Rg6 Qh6 Bb7 Bh8 Ba6 Bb7 d8N Re1 Kd7 Bc8+ Kc7 Bg4 Bc8 Rg1 Re6 Bf6 Kd7 Rc1 Ne4 Bh4 Ng5 Bg3 Ra6 Nf5 Rec6 Bh2 Qc2 Rce1 Nde6+ Kg3 Nc7 e6 Qb3 N5d6 Qd1 Kf4
2Q2q2/r4RR1/1Kn1pbp1/b1n1P3/1N1Q1r2/1n1BrQPB/1Q4RN/2n1kq2 w - - 0 1 illegal: No possible last move
2r3Nk/1B4r1/R2P2p1/RqbqQ1r1/1b3PBr/3bN3/n2BQQ1p/Qn5K w - - 0 1 illegal: No proof kernel
bRr1q1rK/2Q1br1n/2Pq3R/3N4/nPrp2NQ/1B6/1N1B3p/1kb1NQ2 w - - 0 1 illegal: No possible last move, all moves rejected
4Rb1n/2BNKQB1/2P2NQ1/1r4pb/1rR2nP1/q1p1R3/Rn6/2kBrrq1 w - - 0 1 illegal: No possible last move
Q1N1q3/1B3kN1/2PKb2B/2P1nrR1/1p1nNr2/2q2b1r/1R1pbQ2/N1b2Q2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 Ke2 e5 Kd3 d5 a4 b5 c4 h5 g4 d4 Ke4 b3 f4 b4 g5 b2 g6 h3 g7 h4 f6 d3 c6 h2 f5 h3 c5 Be7 a5 Nd7 Kd5 e4 a6 e3 a7 e2 Na3 b1B Nf3 e1R Ra2 Qc7 Nc2 Kf7 Rb2 Qg3 Bh6 Re4 Nd2 Rf4 Ne4 Ne5 Rg1 h1B Na1 h2 Qe1 d2 Qf2 Qc3 Ba6 Bf3 Rg5 h1Q Bb7 Qe1 Qf1 Rb8 a8Q Bd3 Qf2 Bd8 Kd6 Ne7 g8N Be6 Qf1 Bde2 Qf2 Nd5 Ne7 Ne3 Nc8 Nc2 Bf8 Rh3 Bh6 Nd4 Qf1 Qh4 Qf2 Qh5 Qf1 Qg6 Qf2 Kg8 f7+ Kh8 f8N Kg8 Qf1 Bf6 Qf2 Bg7 f6 Qe8 Qf1 Bd7 Ne6 Kf7 Ne7 Rd8 Nc8 Bh8 Ng7 Be6+ Kc7 Rd5 Qf2 Nd3 Qf1 Re5 Kd6 Ref5 Rh5 Kg6 f7 Ne5 f8Q Bg4 Qe7 Bgf3 Qh4 Kf7 Qhf2 Qe3 Qh4 Ng4 Qhf2 Nc2 Rg5 Qa3 Nh5 Bg7 Ra2 Bb2 Qh2 Bc1 Rb2 Nd4 Qhf2 Ne5 Ng7 Qc3
Q2N1bb1/4b2R/2PN2p1/1Q2qQ2/2n1r3/BbrQ1B2/R1RP2p1/2Kq1nkn w - - 0 1 illegal: No proof kernel
rk1B2Nn/5r1B/2p2b2/1qrRpPNP/Qq2Q3/4NKR1/1NR2qr1/2n2b2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 f4 g5 h4 e5 d4 a5 b4 a4 d6 e3 d5 a3 h5 g3 b6 c6 b7 g2 b5 g4 b6 a2 Nh3 g1R Ng5 g3 Nd2 g2 Nc4 Rh6 Rh2 Nf6 Kf3 e2 Nb2 e1R Qa4 Ne8 Bd3 Be7 Bh7 Re6 f5 Na6 b8Q Nb4 b7 Qb6 Be3 Qa5 Bb6 Rc1 Bd8 Nd3 Qe4 Rc4 Qa7 Qb5 Qa4 Bf6 b8R Re7 Rd1 a1Q Rd2 Qa5 Rb3 Ba6 Rc3 Kc8 d7+ Kb7 d6 Nc1 Rd5 Rf7 Rh3 Qb4 Rc2 Rc5 Rg3 Nb3 Ba5 Bb5 d8N+ Kb8 d7 Nd6 Nb7 Qb1 Bd8 Nc1 Na5 Bf1 Nac4 Qb5 Nd3 Q1b4 Ne3 Re7 Nb2 Nf7 Bb6 Nh8 d8N Rc7 Ndf7 Rd7 Nh6 Rf7 Qa3 Rh1 Qa1 g1Q Ng8 Rh2 Qa4 Rg2 Bd8 Qf2+
2r2br1/Q1QBn2R/1qp2q1B/2p2NB1/b3rn2/7P/nR1Pk3/RK1Nr2B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 axb5 d6 c4 Qf6 c5 dxc5 Nc3 Qd4 Nb1 Qd8 e4 Kd7 b4 Kd6 h6 Ke5 h3 Kd4 e5 f5 e6 g5 h7 a5 b6 f3 e7 g4 e8B g3 b7 g2 b5 f2+ Ke2 f4 b6 a4 Nc3 a3 Bd7 a2 Bb2 Na6 b8Q Ne7 b7 Rg8 h8R Nb4 Qa4 f3+ Kd1 c6 Kc1 Qb6 Be2 f1Q+ Nd1+ Ke4 Qd6 f2 b8B Ba6 Qc7 Bb5 Qaa7 Ba4 Bf3+ Kd3 Ne2 g1N Rb1 a1R Rh7 Ra3 Nd4 Ra1 Bc3 Ne2+ Kb2 Ra3 Nf5 Nf4 Bf6 Na2+ Ka1 Rb3 Bg5 Rb4 Rb2 Re4 Bg2 Ke2 Kb1 Qe1 Rg1 f1R Bh1 Qf2 Qc8 Nfg6 Bbf4 Re1 Qcc7 Rc8 Bh6 Qf3 Bfg5 Qf1 Rg3 Nf4 Ra3 Nc1 Ra1 Na2 Rb4 Qf2 Rb5 Qd4 Rb2 Qf6
1B1bB2Q/R3B3/2pN1bPN/3b1Q2/r1rn2qq/1K1RN3/r1pP4/1kbn1B2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 f4 Kf7 b4 Ke6 g4 Kd5 g6 Kd4 f5 a5 b6 e5 g5 h5 g7 a4 f6 a3 g6 e3 b7 e4 b5 h4 b6 e2 f7 Kd3 Nc3 h3 Nd5 h2 Nf3 a2 Ng5 c3 Bg2 Nc6 b8B Nge7 g8B Nf5 b7 Ba3 f8Q Ne3 Qh6 Qd7 Qf8 Rh4 Bf7 Ra6 Rg1 h1R Qh8 Qf5 Bb2 Be6 Be8 Rg4 Nf7 Rhh4 Qb3 Ra5 Qb5+ Kc2 Bf1 Qf4 Rd1 a1B Ba7 Qf5 b8N Qg5 Kf2 e1B+ Ke2 Rf4 Rb1 Nd1 Na6 e3 Bb8 Rb4 Nh6 Rhc4 Qc5 Bh4 Rg3 Qg4+ Rf3 Bf7 Qcf8 Be7 Nc5 Bd8 Ne4 Bg8 Qf5 Ra6 Nf4 Bd5 Ng2 Ra7 Bc1 Ra6 Rb3 Ra5 Bb2 Kb1 Kd3 c2 Bf6+ B3b2 Rh3 e2 Nd6 e1Q Ra3 Bc1 Be7 Bf6 Re3 Qeh4 Ra4 Rab5 Ra7 Nd4 Rg3 c6 Rh3 Ra4 Rg3 Rcb4 Re3 Nf2+ Kc3 Rb2 Rd3 R5b4 Ne3 Rba2 Qh5 Ne6+ Qe5 Rc4+ Kb3 Nd1 Qf5 Nd4+
4k1rR/2Q1Nb2/1RpP2qK/2br1q2/p1R1R3/4b3/PQqB1N2/b2QnnB1 w - - 0 1 illegal: No possible last move
7r/1bNN2qr/1pQ2bB1/4Qqn1/nR3Kp1/Pqq3N1/2NRP3/r1k1B2Q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 h4 Ke5 d4+ Kf5 a3 c5 h6 g5 h5 b6 d6 c4 d5 b3 d7 c3 h7 b2 h6 c2 d6 Na6 Bd2 c1Q Bg2 Nc5 Qa4 Ra7 Rh4 Nf6 Qc6 Qe7 d8N Bb7 d7 Na4 Ne6 Bg7 d8N Ne4 Ra2 Bf6 Nc3 b1Q Nf8 Qb3 Nd7 Qf8 Ne6 Qg7 Nc7 Qa1 Nf8 Ke5 Rg4 Kd4 Be1 Qab2 Rh4 Qc1 Kg4 Ke3 Nd7 f3 Rd2 f2 Nf3 f1R Nd4 Rh1 Kf5 Rf1+ Rf4 g4 Bf3 Ng5 Ne4 Qcc3 Ng3 Rha8 h8Q Rg1 Qh7 Rh8 Qg6 Rf1 h7 Rh1 Qh5 Rf1 Nh1 Rg1 Be4 Rf1 Bg3 Ra1 Be1 Rg8 Qh6 Qf8 Qh5 Bc8 Nce6 Bd8 h8Q f6 Qg7 Rh8 Nb8 Rf7 Ng3 Bb7 Rd1 Qe7 Qgg6 Rfh7 Qge8 Qg7 Qh1 Be7 Nc7 Bd8 Qe5 Be7 Rc1 Bd8 Bf2+ Kd2 Nc2 Be7 Rf1 Bd8 Nd7 Be7 Be1+ Kc1 R1f3 Bd8 Bd5 Be7 Rb4 Bd8 Kf4 f5 Rd3 Bf6 Ke3 f4+ Kf2 f3 Ke3 f2 Bf7 f1Q Bg6 Nf7 Ke4 Qf5+ Ke3 Qfe6 Kf4 Ng5 Rd2 Qf5+
1r2QqN1/2kb1BR1/1pb2q2/3Kn3/2RbNpNB/3B4/nP1bP2n/2N2Qr1 w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 b6 a6 Qd6 Qb3 Qc6 Qd1 Qb7 axb7 Ke7 Nf3 Kd8 Ng1 Ke8 Kf2 Kd8 Kf3 h5 Ke4 f5+ Ke5 c5 g4 a5 d4 h3 d6 f3 d5 c4 d7 c3 g5 f4 g6 h4 g7 a4 Be3 h2 Bg2 f2 Be4 f1N Bf2 a3 Nf3 c2 Nd4 c1B Rg1 h1Q Nd2 h3 Bh4+ Ne7 g8B h2 Bf7 a2 Bd3 Na6 b8N Nb4 Ne4 Kc7 d8N Rg8 Nd8c6 Bd2 Nb3 Bd7 Rc1 a1Q Rg7 Na2 Rc4 Ng6+ Kd4 Ba3 Nc1 Ne5 Qe1 Qg2 Qf2 Qg6 Ne7+ Qc6 Qe1 h1B d6+ Kd8 Qf2 Nh2 Qf3 Qb1 Qf1 Qc8 Kd5 Bc5 Bg5 Bd4 Bh4 Bh3 Nd7 Rb8 Nf6 Bd7 Ng4 Qc2 Rh7 Rg5 Ng8 Qc3 N4f6 Rg1 Rg7 Ba4 d7 Bg2 Rb4 Kc7 Ng4 Qf8 d8Q+ Kb7 Rg6 Bd7 Qe8 Kc7 Rg5 Qa3 Ra4 Qae7 Rg7 Qf6 Rb4 Bh3 N4h6 Bhf5 Ng4 Bb5 Ra4 Bfd7 Rc4+ Bbc6+
r5b1/5QN1/1pr1nQ1q/1RQ2BQ1/p1q1nN2/1qb2P2/PNr1R1q1/3BK2k w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 c4 Kf7 e4 Kg6 h4 Kh5 c6 g5 e6 a5 c7 d5 e5 b6 f3 g2 e7 a4 e8N d4 e6 d3 e7 g3 c5 d2+ Ke2 g4 c6 Qd5 Qc1 d1Q+ Ke3 Na6 Na3 Bg7 Nh3 g1R Be2 g2 Kf2 Be6 c8B Nf6 c7 Bg8 Nc4 Rh6 Bf5 Nc5 c8Q Ne6 Qc5 Qb3 Nb2 Qdc4 Rb1 Re1 Qd2 Rc1 Re1 Rc2 Bd1 Rg6 Re2 g3+ Ke1 Ne4 Qf4 Be5 Qd2 Bc3 Nf4+ Kh6 h5 Kg5 h6 Kh4 h7 Rh6 Rf2 g1Q+ Rf1 g2 h8Q Kg3 Ng7 Kh2 e8Q Qgd4 Qf7 Qf6 Rf2 Kh1 Re2 Qg5 Bh3 Rg6 Qh4 Qh6 Qhf6 Be5 Qdd5 Bd4 Qdg5 g1Q+ Bf1 Qg4 Bh3 Qg2 Bf5 Nd8 Qfe5 Rc6 Qef6 Ne6 Nbd3 Qa3 Rb5 Qab3 Nb2 Bc3+
r3kb2/N4br1/Qp2bq1n/1PN2B2/1rp3B1/Nr1RR2Q/1P6/Q2KnNq1 w - - 0 1 illegal: No proof kernel
2q1Q1qB/2B5/Kp3r1r/Pp2N1nB/qN2Rn1k/2b5/bPQN2R1/1rB4r w - - 0 1 legal: proof: e4 d5 h4 f5 exf5 g5 c4 gxh4 cxd5 a6 Qb3 Ra7 Qb6 Ra8 Qb5+ axb5 Ke2 Kf7 Kd3 Kf6 g4 Kg5 a4 e5 f4+ Kh6 a5 c6 f6 h3 f5 Kg5 d6 h5 d7 h2 f7 h4 f6 h3 Ra4 Kh4 g5+ Bb4 f8Q Na6 g6 Nh6 f7 Nc7 g7 Nd5 g8Q Ra6 Qg2 e4+ Kd4 e3 Be2 Nf4 Bh5 e2 Qe8 e1Q f8B Nf7 Bg7 Rf8 Bh8 Bc3+ Kc5 Ng5 d4 Qe4 d5 Rf6 d6 Qc2 Rc4 Qa4 Re4 Rh6 Qc2 Rb6 Qf7 Qg8 d8N Be6 d7 Ba2 Nd2 Ra6 Qe8 Rf6 Ne2 Rh6 Re1 h1R Nd4 h2 Nf7 Rg1 d8B h1R R1e2 Rf6 Bc7 Rd1 Nf1 Rh6 Be3 Rb1 Nd2 Rf6 Rg2 Rh6 Qe6 Rf6 Ne5 Rh6 Kd6 c5+ Ndc6 c4 Kc5 Rf6 Qd7 Rh6 Nb4 Raf6 Qe6 b6+ Kc6 Bd4 Kb7 c3 Ned3 Be5 Qe8 Bd4 Ka6 Be5 Qc1 c2 Qd1 c1Q Qc2 Bd4 Ne5 Bc3 Nf1 Qd1 Bc1 Qg4 Nd2 Qc8+
NB1Q1nk1/3b2q1/PQ1n1b2/2Nb2q1/2BK3b/RqR1rB1p/pP6/1rN4B w - - 0 1 illegal: No proof kernel
2k3nq/3n3N/P2Q1PbR/Qn1r1Bp1/Nq1p1b2/1n3Rr1/rN1BKR2/7N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 d5 h4 Kd7 c4 g5 f4 e5 f6 b5 a5 d3 f7 b3 c5 b2 f5 d2+ Ke2 b4 f6 b3 h6 e4 c6+ Kc7 h7 e3 h5 Nd7 a6 Bg7 f8N Qe7 h6 Qb4 Nh3 Rb8 Nc3 b1N Na4 b2 Nf2 Na3 Ra2 b1N Nb2 Nb5 Rh3 d4 Qa4 d1R Rf3 Nd2 Nh1 Nb3 Bd2 Ra1 Bh3 Bb7 Bf5 Rd8 Qa3 Kc8 c7 Be4 Qa5 Rg1 Ra1 Rg3 Raf1 Bd5 R1f2 Bf7 Ne6 Bg6 Nc5 Ne7 Nca4 Rhe8 h8N Bf8 h7 Ng8 Rf1 Bd6 R1f2 Bh5 Ng6 Bf4 Nf8 Bg6 h8R Re7 Kd3 e2 Rh6 e1Q Nh7 Qc1 Re3 Re5 Ke2 Rc5 Ref3 Rc2 Rg2 Qg1 Rgf2 Qh2 Rh4 Qd6 Nd3 Qb4 Nf8 Ra2 Ndb2 Qh3 Rh7 Qh6 Rh8 Qg7 Rh6 Qh8 Nh7 Re8+ Be4 Ne5 Bc2 Rd8 Bd3 Kd7 c8Q+ Ke8 Qa8 Kd7 Qd5+ Kc8 Be4 Rd6 Bf5+ Nd7 Qe5 Rd5 Qe7 Rh3 Qd6 Rg3
1b5r/Bq1B1RQ1/PK2ppr1/2Q1rNn1/R1rqN1N1/2P2B2/1nb5/2N1nk2 w - - 0 1 illegal: No proof kernel
1Br1QQR1/4b3/P1p1N2K/4p2B/1q3BP1/2R1r1nk/1Q2bBqr/1Nbb1n2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 b5 Kf4 h5 d4 e5+ Kf5 b3 Kg6 h4 f4 h3 a4 e3 g3 b4 d6 Ke6 d7 e2 a5 e1B a6 b2 Bg2 c6 Nf3 b3 Rg1 h2 Ra3 h1Q Qc2 Qb6 d8B Be7 Bc7 Nd7 Bb8 Nh6 Qe2 Nc5 f5+ Kd7 f6 Ke6 f7 Ne4 f8Q Bd2 Bh3+ Nf5 Bg4 Rh2 Bh5 Ne3 Kh6 Qb4 g6 Qg2 g7 Bd7 Qe8 Kf5 g8Q Nf1+ Ng5 Be6 Qb5 Bc4 d5 Be2 d6 Bf4 d7 Bd2 Nc3 b1B d8B b2 Bb6 Bc2 Nb1 Bcd1 Rc3 Bf4 Bf2 Bd2 Na3 b1R Qg7 Rb3 Nb1 Ra7 Qb6 Rc7 Qd4 Rc8 Qgh8 Be1 Bf4 Bd2 Ne6 Bc1 Qd2 Ra3 Qb2 Rb3 Rc5 Re3 Rc3 Bh4 Bg6+ Kg4 Bh5+ Kh3 Qhf8 Bd8 g4 Ned2 Rh1 Ng3 Rf1 Be7 Rh1 Ba4 Rd1 Ndf1 Rd7 Bd6 Rg7 Be7 Rg8 Bad1
r1K1N3/kN1B4/P1p2q2/2p1r2b/1BN1QNR1/Q1nbb1RP/5q2/2R2rnb w - - 0 1 illegal: No possible last move
3R3N/qBkqB1Rr/p2b1K2/q5Q1/nb3B2/P2Pp1R1/B4Q2/r2nrN1q w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kd7 Ke3 h5 Kd4 b5 Ke5 a6 f4 e3 c4 b4 f5 b3 f6 e6 a3 h4 g5 b2 g6 h3 g7 h2 c6+ Kc8 f7 e2 c5 e1Q+ Qe2 Rh4 c7 Be7 f8B Nh6 g8Q Qd7 Nh3 g1B Ng5 g2 Nf7 Bd6+ Kf6 e5 Qf2 e4 Bc4 Nf5 d3 Qa5 Nh8 Ne3 Ba2 Rh7 Nd2 b1R Nf1 Nd1 Qg5 Kb7 c8B+ Kc7 c6 Bb4 Qc2 Bgc5 Be7 g1Q Qf2 Bd6 Bf4 Ra7 Bb7 Ra8 Qe1 Qa7 Rg1 h1Q Qf2 Rc1 Rb1 e3 Rb2 Ra1 Re2 Qg4 Rg3 Nd7+ Kg6 Nb6 Kf6 Na4 Rd2 Kb6 c7 Qd7 c8R Rb8 Rd8 Rc8 Re2 Rcc1 Rc2 Rcb1 Rcc8 Rc1 Rg8 Rcb1 Rcd8 Kc7 Rg7 Ndb2 Be5 Re1 Bf4 Nd1
1bRQq1N1/rRbb1K2/p3Q1r1/1BBP1p2/4r2q/8/n1Pk1BbN/1nR2R2 w - - 0 1 illegal: No possible last move
2qr3K/1b1Q1B1P/N4Bn1/q3B3/PnBp1R1p/r1n1N1n1/3bQQ2/kr3R2 w - - 0 1 illegal: No proof kernel
2K2Nr1/1bB2NqP/QqNb2B1/pP1nn3/2b3r1/p4k2/N1b5/QQR2r1R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 bxa4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 h4 g5 d4 a5 b4 f6 h6 a3 h7 g4 h5 c4 h6 c3 b5 g3 Nh3 f3 Bf4+ Ke7 d6+ Ke6 d7 f2 Bc7 c2 Nc3 c1Q Na2 Qb2 Rc1 g2 e3 g1R Bd3 f1B d5+ Ke7 Kf5 Rg4 e4 Bb7 e5 Nc6 e6 Ne5 Be4 Bd3 Ng5 Bc2 Nf7 Ra7 Qd3 Ba8 Qb3 Qb8 d8N Qc3 Qb1 Qb6 Bb8 Rc7 Bd3 Rcc4 Bc7 Rg1 Be4 Qg3 Bd3 Qg7 Be4 Rd4 Bd3 Rdg4 d6+ Ke8 e7 Rf1+ Ke6 f5 Be4 f4 Nc6 Nf6 Bg6 Rg8 h8Q f3 h7 f2 Rh6 Nd5 Rh1 Qh6 Qf6 Nd3 Qfa1 Qg7 Kf5 Kd7 e8N Kc8 Ke6 Ne5 d7+ Kb7 d8Q Bd6 Qh4 Kc8 Nf6 Kb7 Nd7 Kc8 Bd8 Kb7 Bf6 Kc7 Nf8 Bc5 Be4 Nb4 Ng6 Qb7 Nce7 Kb6 Qg5 Nd5 Nf8 Bb4 Bg6 Kc5 Qe3+ Kc4 Qa7 Bd6 Qa6 Qb6 Nc6 Kc5 Bd8 Kc4 Bh5 Kd3 Bg6+ Ke3 Bc7 Kf3 Nc3 Rd1 Na2 f1B Nd7 Bc4 Nf8 Nd3 Kd7 Rf1 Kd8 Ne5 Kc8 Bb7+
Q2rk3/3b3P/rrNb1Kpp/5nRB/n4q1B/R1N4Q/1rQ2PN1/qQ5b w - - 0 1 illegal: No proof kernel
1BN2B1q/qb2rQQp/6Pn/rBn1n3/3k4/1PbbR1RK/2Bp1b2/4QN2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 Kf7 Kf2 Kf6 c4 d5 g4 a5 Kg2 e5 b3 d3 c5 d2 c6 d4 b6 a4 b7 e4 c7 e3 Qe1 d1B Kh3 a3 Ne2 a2 Nbc3 d3 Na4 d2 Ba3 Be7 Ng3 e2 Rg1 Na6 b8B Nc5 Nb6 Bb7 c8B Ra5 Bd7 Qc8 Bb5 Nh6 Bd3 Qe8 Nc8 Bc2 Rg2 Bb1 Bc2 Qa4 Rg1 Re8 Bb4 Bf8 Ba3 Bg7 g5+ Kf7 f6 Ke6 f7 Kd5 f8Q Kd4 g6 Re7 f5 Qd7 Qc1 e1B Bb5 Bf2 Qe1 Qd8 Qf7 Qh8 Nf1 Bf6 Be4 Bd3 Rg3 Bg7 Rc1 a1Q Rc3 Be5 f6 Qa2 Kh2 h3 Qg7 Qa1 f7 Bf6 f8Q Be5 Kh1 h2 Kg2 h1N Qff7 Qa2 Bb4 Qa4 Bc4 Qd7 Bb5 Qc7 Kh3 Qb6 Bc7 Qa7 Bb8 Bb1 Qf4 Bg1 Rg5 Re6 Bd6 Nd3 Ne3 Nhf2+ Kh4 Nfg4 Bb8 Bf2+ Kh3 Bc2 Be7 Nc5 Bf8 Re7 Nf1 Bf6 Bf5+ Kd5 Re3 Bc3 Bfd3+ Ne5 Rgg3 Bb1 Qff7+ Kd4 Be4 Bd3 Bf5 Bc4 Bc2 Bd3
B3r2r/6Bp/kP1bQ1Bn/B2n3P/3Q2qr/2N2K2/3qpQRq/N1R1b2q w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Bb7 f5 Bd5 f6 Ba2 Na3 Be6 Nb1 Bf5 gxf5 Qc8 Bh3 Qc7 Bf1 Qd8 Ke2 e5 h4 a5 b4 g5 c4 d5 c5 Kd7 f7 Kc7 h5 Kb7 b6 a4 c6+ Ka6 f6 e3 b7 e4 c7 d3+ Ke1 a3 c8B e2 Kf2 e1B+ Ke3 g4 Ne2 g3 Nd2 a2 Nc3 g2 Rh2 Bd6 f8Q Nd7 f7 Nh6 Nb3 Nb6 Bd2 g1Q+ Rf2 Qh4 Rc1 a1Q Bf5 Qgh2 Rg2 Re8 b8Q Qb2 Qg4 Qg5+ Qf4 Qa2 Bg6 Qb1 Na1 Qc2 Kd4 e3 Qg7 e2 f8B Qb2 Qf2 Qc2 Qd8 Qb1 Qde7 Qb2 Be3 d2 Qe6 d1Q+ Bd2 Qa2 Kd3 d4 Ke4 d3 Kf3 Nd5 Qgd4 Qa5 Bg7 Qad8 Bf4 d2 Bfe5 Qd7 Bef6 Qb7 Bd8 Qc2 Ba5 d1R Qdh4 Rd4 b5+ Ka7 b6+ Ka6 Qf4 Qd2 Q4e3 Rh4 Qd4 Qc7 Rg4 Qg1 Bh3 Qh1+ Rg2 Be7 Bhf5 Qch2 Bc2 Bd6 Bce4 Nb4 Bc6 Nd5 Ba8 Qg4+
r1B3b1/1K1Rb1P1/1bn1q1kN/r7/qp2N1B1/1PR1NnpR/4rr1Q/6RQ w - - 0 1 illegal: No proof kernel
2bq1bn1/Nbnrq1P1/1qq2RBk/BN5p/K7/1Q1P1Rp1/BN1r2B1/7Q w - - 0 1 illegal: No proof kernel
qn2k3/1r2NRPR/1Nq2q2/1b4pR/RP3prb/n7/2QQ3r/Bq1B2KN w - - 0 1 illegal: No proof kernel
3rN3/b3r1Pn/RB3bPr/N2N3q/2R1qQpk/1p6/B1nB2Q1/b2BK2b w - - 0 1 illegal: No proof kernel
BR3nqQ/r5pB/k3N1n1/1n5N/1r1Rq1b1/BRb1R3/1Pb1QPp1/n4K2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 c4 d5 h5 Kd7 f6 Kc7 f7 Kb7 c5 a5 b6 e4 h6 a4 h7 g3 Ra2 e3 Ne2 d3 c6+ Ka6 b7 d4 c7 a3 Nbc3 Bg4 c8B Nd7 Rh4 Bb4 f8R Ne7 Bg2 d2+ Kf1 d3 Ne4 Bc3 Ng5 Ng6 Ne6 Ra7 Re8 Ndf8 N2f4 Qd5 Qe2 d1B Bd7 Bc2 b8R Qa8 Ra1 a2 Bd2 Qd5 Re1 a1N Nh5 Rg8 h8Q Qc4 Bc1 d2 Ba8 d1N Rb5 Qe4 Bd2 Qc4 Reb8 Qd5 Qf3 Qe4 Rb3 e2+ Kg2 Qd5 Bg5 Qc4 Be7 Qc8 Ba3 Qd8 Rf1 e1Q Be8 Qe3 Re1 Qe4 Kf1 Qc8 Bec6 Qe8 Re3 Qf7 Qh7 Rh8 Qg8 Rh7 Qh8 Qg8 Nhf4 Rh5 Qe2+ Rb5 Bd5 Ba5 Nh5 Nc3 Qe1 Rb4 Qe2+ Nb5 Bc4 Bd8 Bd3 Bf6 Qf3 Qd5 Qe2 Bc3 Bf5 Bf3 Rd4 Qe4 Rd5 Bg4 Rd4 Ne5 Bh7 Neg6 Rd1 Be5 Rdd8 Bc3 Rd4 g2+
k2q4/1nRr2pK/B4Q1B/1b1nqNbr/5p1B/4P2Q/2Pnr2N/2rQR2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 Kd7 Kg4 a5 Kf5 f6 Kg6 Kc7 h4 Kb7 b4 a4 b6 f3 b5 f2 h6 a3 h5 d3 h7 f5 h6 d4 Nd2 a2 Ngf3 Ra4 Nc4 d2 Nh2 d3 Ne3 Re4 Rg1 Ka8 b7+ Ka7 Rg3 Nd7 b8B+ Ka8 b6 Ba6 Bc7 Ngf6 b7+ Ka7 Be5 Nd5 Bf6 Nc5 Bh4 Be7 Rf3 Bb5 b8Q+ Ka6 Rg3 Nb7 Qd6+ Ka7 Qf6 Ka8 Rg4 Re5 Rc4 Re6 Rb1 a1Q Rc7 Qe5 Ra1+ Ra6 Rb1 Re8 h8Q Ra5 Qe1 d1R h7 Rd2 Ra1 Rd1 Qd2 Re1 Qd1 d2 Rb1 Qc8 Ra1 Rd8 Rb1 Rd7 Ra1 Qb8 Qc8 Bd8 h8Q Be7 Kh7 Bd8 Qc6 Bg5 Qcd8 Qc8 Qdf6 Qd8 Rb1 Nf4 Qh1 Nd5 Bg2 f1N Be4 Ba4 Bd3 Rc5 Ba6 Ra5 Ba3 Bb5 Be7 f4 Nf5 Qc8 e3 Qd8 Qh5 Re2 Re1 d1R Qg4 Rb1 Qh3 Rba1 Qg8 Nc3 Qgd5 Rc1 Qd1 Nd2 Qd6 Bf6 Bg5 Nd5 Bh6 Bh4 Qf6 Bg5 Q1f3 Bh4 Nd6 Nb6 Nc4 Qe4+ Qff5 Bc6 Nd6 Rd5 Qg6 Rh5 Qh1 Nd5 Nf5 Bb5 Qc6 Bf6 Qb6 Be5 Bg5 Bf6 Bh4 Bg5 Qf6 Qe5
1r1RNk2/2Bqn1p1/5bB1/q1n1RrP1/1pQKbRN1/qb2QP1b/3R4/4N3 w - - 0 1 legal: proof: e4 d5 h4 a5 c4 f5 cxd5 Qd6 b4 axb4 exf5 Qg3 Rh3 Qxh4 Rh1 Qh2 Ke2 h5 Ke3 c5 g4 b5 d4 e5 a4 h4 f6 c4 a5 c3 g5 e4 f7+ Ke7 a6 h3 f3 b3 d6+ Kd8 a7 b4 d7 Ke7 d8R c2 d5 b2 Qd3 Rh6 Na3 b1B Kd4 e3 Qc4 e2 Bf4 c1Q Bc7 e1Q Ra2 Qed2+ Bd3 Rf6 Nc2 Qa3 Ne1 Rf5 Rc2 Qd1 Rd2 Na6 Bc2 Rb8 a8N Qd6 Be4 h2 Nh3 Bd3 Nf2 Qda4 Ng4 Nc5 Rf1 h1B Rg1 Re5 Bg6 Qa5 Rgg2 Bb1 Rge2 Be6 Re4 Rf5 Re8+ Kd7 Rf4 Be7 f8Q Bg2 Qf7 Qc6 d6 Bh3 Qe2 Bc2 Qe3 Beb3 Qc4 Bf6+ Re5 Qb7 Qe4 Ne7 Qe3 Kc6 d7 Be4 d8R Qc8 Bb6 Qe6 Nc7 Qd7+ Nd5 Kd6 Nc7 Nd5 Ne6 Ke7 Nc7+ Qe6 Ne8 Kf8 Bc7 Ne7 Qcc3 Qc8 Qc4 Qd7+
R1nBBB2/1K4pb/2q2pNb/2rN1R2/1nN3P1/2Pr1n1k/6bb/Q2Q1B1q w - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 Qd3 e5 Qg6 exf4 Qxh5 Nf6 Qh7 Ng8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 h4 d3 b4 d5+ Kd4 f3 e4 a4 e5 d2 b6 d1B h5 a3 b5 a2 h6 f6 c3 f2 b7 Qc7 b6 Bc2 Nd2 Na6 b8B Ne7 b7 Qc6 Bc7 Nb4 b8Q Ra5 Qa7 Bb7 Ne2 Nc8 Ba3 Bd6 Rh5 Rd8 Qd3 Rc5 Nc4 Rd7 Qd2 Bh7 Bd8 Bc7 Qd1 Rd6 Rc1 a1B Rf5 Bb2 Ra1 Bc1 g4 Bf4 Bg2 f1N Qa5 Nh2 Bf1 Kf7 e6+ Kg6 e7 Bd2 Rf4 Kg5 e8B Kh4 Rf5 Bg5 Nf4 Nf3+ Ke3 Bg8 h7 Bh6 h8N Bh7 Ng6+ Kg3 Qaa4 Rd7 Ra2 Be5 Qa1 Rd6 Q4d1 d4+ Ke2 d3+ Ke3 Rdd5 Ke4 Rd6+ Nd5 d2 Bc1 Rd7 Ra8 Kh2 Ba3 Bd6 Qa4 d1Q Qb3 Qd2 Qbd1 Qg2 Bb2 Kh3 Ba3 Nc2 Bb4 Bh2 Ba3 Rb5 Bc5 Nb4 Bf8 Rc5 Rf4 Na7 Rf5 Ng5+ Kd4 Rb5 Rc8 Qa6 Ra8 Bd6 Ndb6 Rc5 Qaa4 Nc8 Qaa1 Be4 Be2 Qh1 Bf1+ Bg2 Bde7 Rcc7 Bd8 Nf3+ Ke4 Nc6 Kd5 Bh2+ Kc5 Rd3 Nd5 Nb4+ Bc6 Rf7 Be8 Qe6 Kb5 Rc7 Ka5 Nd6 Kb6 Rc5 Ka7 Nc8+ Kb7 Qc6+
r4bnN/6pN/k1Bb1pQP/1q5b/r4Nn1/1P2KRB1/2q2R1q/bB2B1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 c5 e4 Kc7 h4 Kb7 d6 a5 h5 f3 b6 a4 b3 a3 d7 g3+ Ke3 a2 d5 c4 e5 g2 h6 f6 e6 c3 e7 f2 e8B c2 d6 Nc6 Rh2 Rb8 Nf3 g1B Nc3 Na5 Ne2 Ra8 Ng5 Qc7 d8N+ Ka6 b7 Rb8 d7 Ra8 b8B Kb6 Nf4 Ra6 Nh7 Nc6 Bd3 f1Q+ Rf2 Bh2 Bd2 c1Q Nf7 Qc2 d8Q Bg4 Be1 Ne5 Bc6 Ra4 Qe8 Bh5 Qg4 Qd6 Qg1 Bg3 Rd1 a1B Rdd2 Ka5 Rf3 Kb6 Bf5 Qb5 Rdf2 Ka6 Bc7 Qb2 Bb1 Qd1 Rf1 Qh2 R1f2 Qc2 Bb8 Nd7 Qe4 Ne5 Qg6 Nd3 Nd5 Bgd6 Nf4 Ne5 Bd2 Nd7 Q1g4 Bfe7 Be1 Bde5 Qh3 Bb4 Bd6 Ne7 Ne2 Ra8 Qf1 Ng8 Qfg1 Ba3 Bb8 Bf8 Nh8 Bg3 Bd6 Bge5 Ba3 Bb8 Bd6 Bc7 Bg3 Ne5 Nf4 Bb8 Ne2 Bbd6 Nf4 Ng4+
K4q2/bB1nb1p1/2R1p3/2NPk1Bb/1b3q1P/6QN/Qn1Br1RB/2qQr3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 a5 Kc5 g3 b4 e6+ d6 e3 d4 c6 h4 a4 f4 e2 d5 e1B f5 g2 b6 a3 b7 a2 b5 Ke5 f6 Rh7 f7 Rh5 b6 Nf6 Nd2 Be7 f8Q Ne8 Nb3 Bd7 Nh3 g1B+ Qf2 Ra6 Rb1 a1Q Rh2 Qa4 Bd2 Qf4 Rc1 Ra2 Ba6 Rg5 Rg2 Rb2 Bb4 Re2 Bd2 Rg3 Rc3 Rge3 Rc4 Nc7 Rc1 Nb5 Qg3 Be8 Rc4 Bf6 d7 Na3 Qf2 Qc8 d8B Bh5 Rc3 Nc4 Rc2 Bg5 Be7 Bh6 Bg5 Nb2 Qg3 Kf5 Qh2 Re5+ Kd6 Qf8+ Kc7 Nd7 b8Q c5 Kb7 c4 Nc5 c3 Ka8 Bd4 Rc1 c2 b7 R5e4 Qg3 Bf6 Qd8 Be7 b8B Bf2 Qa5 Bg1 Nb7 Ba7 Qa2 Re1 Nc5 R4e2 Ra1 c1Q Bb7 Qc2 Rc1 Qb1 Rc3 Qc1 Nd3 Ke4 Rc6 Bb4 Nc5+ Kf5 Bd8 Bg5 Bd6 Be7 Bb8 Bd6 Bg5 Ke5 Bf6+ Kf5 Qe3 Qe4 Bg5 Be7 Qeb3 Bd8 Bh2 Qf4 Qd3+ Ke5 Qg3 Be7+
Nr1R1n2/1N2N1p1/R1PQnpn1/B6B/KbbN1Pr1/3qQ1Bn/8/3kqb2 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 hxg4 a4 e5 axb5 exd4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 a5 Kb3 d5 h4 f6 b6 d3 h5 Kd4 h6 g3 c6 g2 h7 d2 b7 Nh6 c7 Nd7 b8B Ng4 c5 Nge5 c6 Bb4 Be2 Nf8 Nc3 Neg6 e5 Bh3 Bh5 Kd3 c8N d4 Nge2 g1N e6 Bf1 e7 Nh3 Bg3 Rb8 e8N Qe7 f4 a4+ Ka2 a3 Kb3 a2 Na4 Ke3 Nc7 d3 Na8 Qe4 Rh2 Ng5 Bb2 Nge6 Nc5 Qf3 Qe1 d1N Ne7 d2 Bc3 Nf2 Nb7 Nh3 Ka4 Kd3 Nd4 d1B+ Rc2 Bde2 Rd2+ Ke3 Qc1 Bc4 Qa3 Qe2 Rdd1 Qd3 Bce1 Bd6 Ba5 Bb4 Rd2 Bc3 Qd6 Bb4 Rad1 a1Q+ Ra2 Rg8 h8Q Qab1 Rdd2 Qe1 Qh6 Rh8 Qg5 Rh6 Qgc5 Rh7 Bf3 Rh4 Bh5 Rg4 Rd1 Qdd2 Qce5+ Kd3 Qe4+ Kc3 Qe3+ Qd3 Bd8 Rh4 Qc7 Nh8 Nb3 Ba5 Ka3 Nhg6 Raa1 Kc2 Qd7 Qde2 Rd6 Qb1 Nd4+ Kd1 Bb6 Rg4 Qc7 Qf2 Rd8 Bb5 Qd6 Qe1 Ra2 Qe4 Kb3 Bc3 Ra6 Bbc4+ Ka4 Qd3 Ba5 Bb4
1qk2n2/1r2Q1pR/P3N2B/K5N1/b1b1B3/1Bb1r1n1/Rrp1Q2P/Rr1Bq3 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 a4 Kd7 e4 b5 d4 c5 Kd2 f5 e6+ Kc7 d6+ Kb7 d7 g3 d5 b3 Kc3 g2 a5 c4 e7 b2 Kb4 f4 d6 f3 e8B c3 e5 f2 e6 c2 e7 Rh3 Nd2 b1R+ Nb3 Re3 Nh3 g1Q Ra2 Nf6 Ng5 Nh5 Bg6 Ng3 e8B Rb2 Be2 f1B Bef7 Qc7 d8Q Bd7 Qf6 Kc8 a6 Be8 Qe5 Nd7 Be4 Qb8 Ka5 b4 Nd4 b3 Nde6 Be7 B2f3 Bc4 Qe2 Nf8 Bd2 Qf2 Rha1 Qe1 Qc5+ Bc6 Qa7 Bf6 Qe7 Ra7 B3h5 Rb7 Bg8 Qa7 Bgf7 Ba4 d7+ Kb8 Bg8 Rb4 Bgf7 Qb7 d8R+ Qc8 Rd5 Bc3 Rf5 Qe8 Rf6 Kc8 Rh6 Qc6 Rh7 Qa8 Qf1 Qb8 Bd1 Rb1 Qe2 b2 Bd5 Rc1 Bg6 b1R Bd3 R1b2 B3e4 Rcb1 Bc1 Bcb5 Bb3 Bc4 Nf7 Rd3 Bh6 Re3 Nfg5 Rb7+
q3brR1/3rNkpQ/pQ6/1nQ1R3/PR2B2B/N4PnK/6n1/r1qQb2n w - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b4 d5 cxd5 h5 bxc5 hxg4 Ba6 e5 Kf1 b5 Kg2 e3 a4 e4 d4 e2 h4 Qa5 Qd3 e1R f3 b4 c6 g3 h5 b3 d6 e3 c7 e2 d5 b2 h6 Bg4 c8Q+ Qd8 h7 Ne7 Bb7 a6 Nh3 Bh5 Bg5 Nbc6 Bh4 Nf5 Na3 b1Q Nf4 Ra7 Kh3 g2 Ng6 Ncd4 Qcc4 Rc1 Re1 Qa8 Qd1 Nb5 Qc7 Qc2 Rb1 Qc6 Rb3 Ra1 Rb1 Qc1 Qcc2 Kf7 d7 Bb4 d6 Ke6 d8Q Rg8 Qg5 Rf8 Ne7 Be8 h8R Kf7 d7 Ba5 d8Q g1N+ Kg2 Bc3 Rb4 Nh3 Qb6 Ng3 Qh7 Nf2 Qgc5 Nfh1 Rg8 Bd2 Bc6 Rd7 Kh3 Bc3 Rf1 e1N Bb7 Nc2 Re1 Ne3 Re2 Ng2 Re5 Bd2 Be4 Be1
1Qn2q2/BqRB1Pnb/3B1n1q/P2r2rQ/1QRb3p/3n4/p1QK4/N5Nk w - - 0 1 illegal: No proof kernel
3nRK2/5PN1/1r1BQ1n1/p2Qbq2/1b4qq/1q4NB/PpBB2r1/k2bQ1R1 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 b5 f4 h5 g4 a5 f5 e5+ Kc3 h3 d4 h2 c6 b4+ Kc4 e3 d6 h4 Kd5 b3 c7 h3 d7 e4 Na3 e2 Qe1 e3 Nc4 Ne7+ Kd6 Nbc6 d5 Rg8 Bd2 Bg7 Rc1 Qf8 d8Q Bb7 c8Q Ra6 Qdd7 Rb6 g5+ Kf7 g6+ Kf6 Ra1 Nd8+ Qcc6 Bh8 g7 b2 Qe8 Ng6+ Kd7+ Kg5 f6 Kf4 d6 Ba8 Qc5 Bf3 Qe6 Bg4 Qd5 Bh5 Qb1 e1Q f7 Qf2 Qe1 Bd1 Rb1 Qg3 Rc1 Qg4 Ra1 Nb7 Rc1 Qb8 Rc3 Qf5 Ra3 Nd8 Ne2+ Kg4 Ng3 Kf4 Rg1 h1Q Ra4 h2 Bh3 Qf3 Rb4 h1Q Rb5 Rf8 g8B Q3g4 Bh7 Rg8 Rc5 Be5 Rc8 Rg7 Ke8 Qh2 d7 Qf2 Nh1 Qfh4 Ng3 Qb7 Nd6 Qb8 Bb4 e2 Bc3 Ke3 Bb4 Nc6 d8B Qb7 Bc7 Nd8 Qh1 Kd3 Qhd5+ Kc2 Bd2 Kb1 Rb8 Qfe4 Ndf5 Ka1 Bd6 Qef3 Nh5 Qc8 Nfg3 Qb3 Ra8 Nh8 Bc2 Ng6 Qf6 Qcf5 Qfe6 Nh8 Kf8 Rg5 Qf1 e1B Ng7 Rg6 Bc1 Bb4 Qe1 Rg5 Bd2 Qd4 Ne2 Rg2 Ng3 Qdg4 Rc8 Nb7 Re8 Nd8 Qe3 Nc6 Qee4 Nd8 Qe1 Ng6+
k7/rn3PbN/1Qq3PR/pnN2qKb/2p4N/q7/3rQ2b/NbBQ1B1R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ra6 Kd7 Ke2 h5 Ke3 c5 Kf4 Kc7 b4 Kb7 d4 e3 g4 e2 b6 e1B g5 Nf6 Qd2 Bf5 Rh3 c4 d6 Ne8 d5 Nc7 d7 Qc8 d8Q Nc6 d6 Na5 d7 Bg7 Na3 Bb1 Nc2 e5+ Kf5 e4 f4 e3 b5 e2 Nf3 Kb8 b7 Bg3 Rf6 Re8 Rh6 a6 g6 Ra7 Rh2 h3 Kg5 h4 Na1 e1Q f5 Qe7+ f6 Qa3 f7 Re2 Qf6 Bd6 d8Q Be5 Qd1 Rd2 Qde7 Bd6 Qee2 Bg3 Rg2 h2 Rg1 h3 Nh4 h1Q Qff2 h2 Qc5 Qg2 Rh1 Qc6 Qce3 Ra8 Qeb3 Ka7 b8N Kb7 b6 Ra7 Qb2 Ka8 Nd7 Bd6 Qd4 Nb5 Nf6 Q8d7 Nh7 Bde5 Rg1 h1B Qc5 Bf3 Rh1 Bh5 b7+ Kb8 Qb6 Bh2 Qg2 Nb3 Qge2 a5 Qbe3 Nc5 Qg1 Kc7 b8N Kb7 Na6 Ka8 Qgf2 Nb7 Qb6 Qdd3 Nc5 Qf5+
N1Qq4/kqn2Pp1/n3b1Q1/3B4/2r1q2p/1bB1RN1q/1BP4R/bK2rBQ1 w - - 0 1 illegal: No proof kernel
2r5/QRQ1Rp1K/q1NnBb2/2Bp3Q/2kqR3/nr5b/PP2q3/N2bR2q w - - 0 1 illegal: No proof kernel
B1N1b2K/1r3p2/6QB/1PQ2q2/k1rB2P1/BNn1rRr1/2R2Rpn/3nq1b1 w - - 0 1 illegal: No proof kernel
2nr3K/5pR1/2k1p1Qb/1R1r1bQq/2P1b2B/3qQBP1/N1BNn3/3qB2b w - - 0 1 illegal: No proof kernel
B2k2q1/1Bn2p2/2RpbR2/1Q1n1Pr1/q7/RNr1bN2/1KQN2PR/5rqq w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bh3 d6 Bc8 h4 gxh4 d4 c6 d5 Qd7 Bf4 Qc7 d7+ Kd8 Bd6 Qb7 Ba3 Kc7 d8N Kd7 d6 Qb6 Bb4 Ke8 Ba3 Bg7 d7+ Kf8 Bd6 exd6 Ra2 Ke7 Ra1 Bf8 Kd2 a5 Kc3 h5 e4 c5 b4 a4 f4 h3 e5 c4 f5 h2 e6 a3 Nc6+ Kf6 d8R a2 e7 h4 e8B h3 Kb2 Ra3 Nd4 Ke7 Qc2 Na6 Bc6 Nf6 Nd2 Rg8 Ngf3 Qb8 b6 Nd5 b5 Be6 b7 Nac7 b6 Rc3 Rc8 Bh6 N4b3 Rg5 Re1 Qa8 b8R a1R b7 Qa4 Ra8 Rc1 Rg1 h1Q b8Q h2 Qb5 Rd1 Bd3 Ra1 Rgf1 Qg1 Bb7 h1Q Be4 Rd1 Rh8 Ra1 Rh7 Rc1 Ra6 Kd8 Rc6 Rd1 Re3 Ra1 Rf2 Rf1 Rd3 Rg4 Ba8 Be3 Re2 Rg8 Rh6 Rg5 Rf6 Qh7 Re1 Qg8 Ra1 Qh1 Ra3 Bg1 Qd1 Rf2 Rg6 Ne3 Nh2 Rc1 Rc5 Rf4 Bec6 Ned5 Rh3 Be3 Rf6 Rf2 Nf3 c3+ Ka2 c2 Kb2 Rg3 Bcb7 Rg5 Nh2 Rf4 Rc6 Rc4 Rh7 Rc3 Nhf3 Ra1 Rh2 Rb1+ Ka2 c1Q Qc2 Qcf1 Nh4 Re1 Nhf3 Qfg1 Kb2 Rf1
Q1n3Br/5p2/2p1b1B1/PR3r2/nrN2Bb1/K4PQ1/qB1R1r2/qRn3Nk w - - 0 1 illegal: No possible last move
1bn1RQQ1/N2kP2N/2b5/1n3K1Q/qQ1Pp3/r1pn1R1q/b2n3N/2BB2r1 w - - 0 1 illegal: No proof kernel
N1q3r1/2q1P1P1/Rn2q3/2Nqp1n1/2QR1r2/4N2p/bb2B1QB/1k2NKbB w - - 0 1 illegal: No proof kernel
Qq1bR1Rn/1Q1Bpn1k/3B1r2/P1nr1p1B/2nPN3/2Kr1b1Q/1Q4N1/5q2 w - - 0 1 illegal: No proof kernel
1q2qBN1/1Q2p2n/QPBb3K/6p1/2nqr2b/1kB1P2r/2RQ3b/1qRN3B w - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h3 Bb7 h4 Be4 h5 Bg6 hxg6 f5 Ra3 fxg4 Ra2 Nc6 Ra1 Nb8 Kd2 h5 f4 a5 b4 d5 c4 Kd7 g7 Kd6 f5 h4 f6 h3 e3 a4 b6 a3 f7 g3 b7 d3 b5 Kc5 b6 Kb4 c5 h2 c6 a2 c7 g2 c8B d4 Bg4 Nf6 g8Q Nc6 b8Q Qe8 Bf3 Ra4 Nh3 g1B Qb7 Nh7 B1g2 Na5 Nf4 Bf2 Nh5 Bh4 Bb2 Bg7 f8B Be5 Nf6 Bd6 Bc6 Qb8 Rf1 h1Q Rf2 Qh3 Qf1 Qd7 Bh1 Qde8 Nc3 Nc4+ Ke1 d2+ Ke2 d3+ Kf3 Bh2 Kg4 Kb3 Rc1 a1B Qd5 d1Q+ Re2 d2 Ng8 Qc2 Nd1 Qb1 Bc3 Bb2 Qa5 Ba3 Qf2 Bad6 Qaa6 Qec8+ Kh5 Qe8+ Kh6 Rb4 Nb2 d1Q Rec2 Qd4 Qe2 Rb5 Qe1 Re5 Qd2 Re4 Nf6 Rg8 Nd1 Rg7 Ng8 Rf7 Qc8 Rf3 Qcb7 Rh3
1RN3R1/KQ1P1b2/b1rQ1bQ1/BNn1p3/B1q1PR2/3n1n2/3pqkn1/r6Q w - - 0 1 illegal: No proof kernel
n2b1B1K/3Pq2N/1pP3b1/4nrRr/RR2N1B1/1R1r2pQ/7B/q1rQ1b1k w - - 0 1 illegal: No proof kernel
1kB1RK2/3PN1b1/p1Bp1nr1/b2QQ2B/3R2Q1/Pq1bnb1N/Q7/q2rn3 w - - 0 1 illegal: No proof kernel
2b4B/2P2nqR/r4rN1/1KQP1Q1Q/N2b1q2/q2r2pN/3n1p1k/1BQ1qR2 w - - 0 1 illegal: No proof kernel
RR2rkq1/2P1qn2/2n2bQ1/1PNbBB2/1Bb3r1/1BRKp3/bp4n1/Q3N3 w - - 0 1 illegal: No possible last move
5QBr/K1PnQ1R1/1N2q2k/p1P3R1/r1r5/2BBNBn1/3p1qbb/2qQ1q2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 h5 e4 d5 g4 a5 b4 f5 c4 Kf7 e5 Kg6 c6 h3 g5 d4 c7 h2 b6 h4 e6 d3 b5 h3 b7 f3 Ke3 f2 e7 d2 e8B+ Kg7 g6 Qd6 b6 Kh6 g7 Bd7 Nf3 Qa3+ Kd4 f4 Bb2 Rh7 Rg1 h1Q Nh2 f3 Bd3 f1Q Bc3 f2 Rg5 Qc6 Bh5 Qe2 Bf3 Qce6 Nf1 h2 Ne3 Ne7 g8B Qc1 Kc5 h1R Na3 f1Q Rb1 Rf7 Rb5 Rh4 Rg7 Nbc6 b8Q Ne5 b7 Bc6 Kb6 Nf5 Qc8 Bd6 b8Q Qef2 Qd8 Ng3 Qe7 Rff4 Qbf8 Rd8 Ka7 Nd7 Rbg5 Rc8 c5 Rc4 Bh5 Bg2 Bf3 Ra4 Nac4 Rf4 Nb6 Rfc4 Qf4 Rf8 Bgh7 Rh8 Qff8 Nf5 Bg8 Bh2 Qe1 Ng3 Qe2 Q2g1 Qd1 Qgf2
1BbnKR2/2PnR3/1R3pnR/3N1rQ1/b2N1qpb/1Q1qrn2/1BP1B3/6k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 dxc5 exf4 Kf2 Ke7 h4 Kf6 e4 Ke5 b4 g5 c6 d5 h5 a5 c7 g3+ Kf3 g2 b6 a4 h6 a3 b5 d4 h7 g4+ Kf2 a2 b7 f3 Kg3 d3 b6 Kd4 Kf4 f2 e5 d2 e6 Qg5+ Kg3 Ke3 e7 Nd7 b8B Qf4+ Kh4 Ra5 e8R+ Ne7 b7 Rf5 Nf3 g1N Be2 f1B Bb2 Kf2 Qc1 d1Q Nc3 Qd3 Rb1 a1N Nd4 Nb3 Nd5 Na5 Rh3 Rg8 h8R Nac6 Rf3+ Kg2 Rh6 Nd8 Re3 Bg7 Rf8 Be5 Re4 f6 Qe3 Bd6 Re6 Bc5 Rb6 Rgg5 Re1 Re5 Qc1 Rgf5 Qd2 Re3 Qa5 Nh3 Qd2 Ng5 Kh5 Kg1 Qa5 Ng8 Kg6 Nf3 Kg7 Ne7 Qd2 Ne6+ Kf7 Nd8+ Ke8 Bd6 Ba7 Be5 b8Q Bd6 Qb7 Bb4 Bb8 Ng6+ Re6 Ba5 Qb3 Bb4 Rb1 Ba5 Qc1 Be1 Re7 Bg3 Ra1 Be1 Ra6 Bh4 Rb6 Qa6 Bd1 Bb5 Qd2 Ba4 Be2 Qd3 Qa5 Re6 Qd2 Qd6 Qf4 Re3 Qg5 Qf4
3Qq1k1/q1P5/1P2N1q1/Bp1BRb2/rbN2pR1/1nb2R1Q/b1K3n1/B1B4r w - - 0 1 illegal: No possible last move
1q2n1N1/r1P1p1B1/1QQ1qN2/1bbb2n1/1PBNRN1p/K5k1/2Qqr3/4R2b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 h5 b4 d5 c4 a5 Kc2 d3+ Kb3 d2 c5 h3 b6 a4+ Ka3 d4 b7 h2 c6 d3 c7 Na6 b8N Ra7 Nc3 Bh6 Nge2 Bb7 Bb2 Nc5 Qc2 d1B Nd4 d2 Bc4 Ne6 Re1 h1B Re4 Ng5 Nce2 Bd5 Bc3 Qc8 Bb2 Qe6 Nd7+ Kf7 f6 Kg6 f7 Nf6 f8Q Ne8 Nf6 h4 Nf3 Rg8 Nfd4 Bg7 f5+ Kh6 Ng1 Be2 Re1 d1Q Nh3 Qd2 Nf4 Bf1 Nd7 Bd3 f6 Bf1 f7 Be2 Ka2 a3 Nf6 Bd3 Kb3 a2 Bc3 a1Q Bb2 Nd6 Qa8 Ne8 f8Q Qa5 Bc3 Qb5 Qc6 Qb8 Ba1 Nd6 Qc8 Ne8 Q8a6 Bf1 Ka3 Bh8 Ba2 Bb5 Bc4 Bg7 N6h5 Be5 Nf6 Bd6 Bb2 Bc5 Qb6 Nh3 Ba1 Rg5 Bb2 Re5 g5+ Kg7 g6 Kh6 g7 Kg5 Nd7 Kg4 g8N Kg3 Ndf6 Ng5 Qc6 Rb7 Qab6 Ra7+ Qa5 Qf7 Nde6 Nd6 R4e2 Kf3 Ne8 Ba4 Qab6 Kg3 Bd4 Re4 Bg7 Qg6 Nd4 Qe6 Nef6 Ne8 Ka2 Bb5+ Kb3 Re3+ Kb2 Rf3 Re4 Rf2 Kb3 Re2 Kb2 Rb7 Ka3 Ra7+
K1bb4/2P1pqB1/2nP3r/RR3r1Q/B4r1b/1p6/Rn1BNkN1/R1Qq3b w - - 0 1 illegal: No proof kernel
1K3k1b/1BpB4/N1n4N/q2P1n2/1n1Q2r1/1b3pPr/1R2Rq2/bBbNB1Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 a5 Kf3 h5 Ke4 f3 d4 f2 b4 h4 b6 f6 g3 c3 b7 h3 g6 a4 g7 c2 b5 h2 b6 a3 Nc3 a2 Bg2 f1N Rb1 a1B Bd2 c1B Nh3 Bd7 Kd5 f5 e4 f4 e5 Qc8 e6 Rh5+ Ng5 Bcb2 e7 Rh8 Nf7 Na6 b8Q Ra7 b7 Rh4 Nh6 Bf5 Kc6 Ne3 Re1 h1Q Re2 Qh2 Qg1 Bc2 Nd1 Nf5 Be1 Bc1 Rb2 Rh3 Bd5 Ra8 Qa7 f3 b8N Bb3 Qb6 Qd7+ Kb7 Qb5 Be4 Qf2 Bb1 Ra7+ Kc8 Rb7 d5 Qa5 Qf6 Nb4 Na6 Rb6 Qd4 Rg6 Kb8 Nf6 g8B Rg4 Be6 Ng8 Bc8 Bg7 Bb7 Bh8 Be4 Nf6 Bb1 Nd7+ Ka7 Ne5 Kb8 Kd7 e8B+ Ke7 Bec6 Kf8 Bd7 Nec6+
n4nqQ/2p1Q1Q1/rrPrB3/k2B4/rq3N1q/2Rb1Bp1/1b1RP3/1N2K2B w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 h6 g6 Qe7 g7 Qd8 g4 Bd6 g5 Be7 g6 Bf8 Bg5 hxg5 a4 f5 c4 b5 h4 d5 a5 Kd7 h5 Kc6 a6 Kb6 h6 g4 e6 g3 a7 d4 h7 f4 e7 d3 e8Q f3 Qe7 b3 Qc2 b2 Qh4 d2+ Kd1 f2 Qh6 b4 Qg5 b3 Ra2 Ne7 g8B Nd5 g7 Ba6 Na3 b1Q+ Qc1 b2 c5+ Ka5 Qe7 Nd7 Nh3 N5b6 Be6 Bd3 g8B Bg7 Bg2 Nf8 Bf3 Bc3 Re1 f1Q Nf4 Qh3 Bgf7 Rg8 h8Q Rg4 Bed5 Qh2 Bfe6 Qh4 Rf1 Qe8 Bh1 Qf7 Rf3 Qg8 Re3 Rd8 a8B Rd6 Bab7 Na8 Bdf3 Rb6 Bbd5 Ra6 c6 Bf6 Ng6 Ra4 Nf4 Qa1 Qhg7 b1R Rc2 Rbb6 Nb1 Qe5 Qb2 Qe4 Qe5 Qd4 Qh5 Qb4 Qhh8 Bb2 Rc3 Bb5 Red3 Bc4 Kc2 d1R Rd4 Rc1+ Kd2 Rc2+ Ke1 Rd2 Re4 Rd3 Re3 Rd4 Rd3 Bb5 Rd2 Bd3 Ba2 Rd7 Bad5 Rd6
k3bb2/2p1b3/1P1rB1BR/2b2Q1K/2BRN2q/Bpr1q1N1/n4nP1/1Q2Qr2 w - - 0 1 illegal: No proof kernel
2q1K3/2p1R1P1/2B2rN1/b4P2/nB2qn2/2rQNRQ1/NB2Np2/1brnk2r w - - 0 1 illegal: No proof kernel
2N1r2N/Rrp3PN/4RBq1/2PRbq2/6BQ/1k2nRK1/1bbp1n2/4n1Qb w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 f4 Ke7 Kf2 Ke6 g4 h5 c4 a5 b4 d5 f5+ Kf7 f6 Ke6 b6 d4 b7 d3 b5 d2 f7 h3 g5 e3+ Kg3 a4 c5 Kd5 g6 e2 e6 Kc4 g7 h2 b6 a3 e7 a2 e8R Qd7 Nf3 Qf5 Nc3 Nc6 b8Q Nb4 b7 Nd3 Nd5 e1N Ne7 Nh6 Be2 Ng4 Ng5 Ra7 Nh7 Ne3 Rf1 h1Q Bb2 Qhe4 Bg4 Nf2 Bf6 Qb1 Qc1+ Kb3 Qa8 Be6 b8R+ Rb7 Rbd8 Qbc2 Rd5 h4+ Kh2 h3 Kg3 h2 Nc8 Be7 f8N h1B Ng6 Bf7 Qa5 Bd6+ Ree5 Rd8 Nh8 Re8 Qa7 Bg6 Qa4+ Kc3 Qf4 Kb3 Re6 Be5 Qd1 Nfd3 Rf3 Nf2 Qe2 Qb1 Qf1 Qbd3 Qg1 Bb2 Rc1 a1B Rc4 Be5 Ra4 Bab2 Raa6 Qg5 Ra4 Bf5 Ra8 Qg6 Ra7 Qf1 Ra8 Bc2 Ra7 Bed4 Qe4 Qd3 Qf4 Qdf5 Qh6 Bdc3 Qh4 Be5+
r1BQ3b/rP2r2p/1qn4Q/4Bb2/1k2pNQB/4rPKN/1Bq1R3/4qRn1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 Kd6 d4 c5 f3 e5 Kf2 a5 b6 a4 b7 a3 b5 h3 g5 h2 b6 a2 g6 e3+ Kg3 e4 g7 e2 Nh3 e1R Qd2 c4 Nc3 Bf5 Qh6+ Nf6 g8Q Re3 Qg4 Nc6 Bb2 Bg7 Re1 a1R Ne2 c3 Nef4 c2 Ba6 c1Q Rhf1 h1Q Re2 Re8 b8B+ Qc7 Bc8 Bh8 b7 Qc2 Ba7 Qb6 Bb8+ Ke7 Be5 R1a7 Kf2 Nh5 d6+ Kf7 d5 Re7 d7 Ng3 d8B Ke8 Rd2 Ne2 d6 Ng1 Kg3 Kf7 Re2 Ke8 d7+ Kf7 Ng6 Ke6 Ba3 Kd5 Bab2 Kc4 Ngf4 Re8 Bdf6 Re7 d8Q Kb4 Ng5 Qh5 Ngh3 Qg6 Bg5 Qd6 Bgf6 Qdd1 Bh4 Qe1+
1rqQ2N1/1Pb1B1p1/3Q1q2/2Rnnb1K/Rq4B1/1qPbQ2r/2B2p2/N3Bk2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 e4+ Ke5 b4 a5 h4 f6 b6 f3 h6 d5+ Kh5 f5 b5 f4 h7 f2 c3 f3 b7 d3 b6 d2 Bh3 Kf4 e5 Kg3 e6 f1Q e7 Kf2 e8B a4 Na3 d4 Nc2 a3 Bg6 a2 Ba3 d3 Bg4 Qh3 Be7 Nd7 b8B Qe8 b7 Qd8 Ne2 Ne5 Ng3 Bf5 Ne4+ Kg2 Bbd6 Rb8 Nf6 Kf2 Qc1 d1Q Qe3+ Kg2 Bc5 d2 Rh2+ Kf1 Bd4 Nh6 Ng8 Qb1 Bb6 d1B Rd2 Qb2 Rd5 Qb3 Rc5 Qd6 Bc7 Qf6 Bcd6 Bd3 Be4 Nf5 Bc7 Ng6 Bg3 Ne5 Be1 f2 Rb1 Nd7 Na1 Ne5 Rb2 Qb4 Rb3 B1c2 Ra3 Qb3 Ra4 Qb4 Qd4 Bb1 Qd6 Ne3 Bef5 Nd5 Bg6 Bb5 Bc2 Bd3 Nh6 Rg8 h8Q Bf5 Qh7 Rh8 Ng8 Bd3 Qh6 Qb3 Bf3 Qc8 Bg4 Bf5 Bcd1 Bbd3 Bc2 Qfe6 Kg5 Qb4 h5 Qf7 Kh4 Qf6+ Qg5 Rh7 h6 Rh8 Kh5 Rh7 Nb3 a1Q Qe3 Qb2 Na1 Rh8 h7 Q2b3 Bd8 Qfe6 Bf6 Be7 Bg5 Bd8 Be7 Bc7 Nh6 Rf8 h8Q Rf6 Ng8 Rh6+ Kg5 Rh3 Qh4 Rg3 Kh5 Rf3 Qf6 Rg3 Qf8 Qf6 Qfd8 Rh3+
n1q2Q2/QPBrqpb1/Nq1nRb2/8/1RNR2Bq/4bP2/3pk1r1/KRQ5 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Bf4 Be6 Bd2 cxd4 Bh6 d3 Be3 d4 Bc1 Bd5 exd5 Qc8 Nf3 Qc7 Ng1 Qd8 Kd2 Kd7 g4 Kd6 b4 Ke5 c4 Ke4 c5 h5 d6 e5 b6 a5 b5 a4 c6 a3 d7 a2 c7 h3 c8R h2 g5 h4 b7 h3 b6 Ra7 g6 Na6 b8Q Nc7 g7 Na8 Rc7 Nh6 g8R Qe7 d8Q Nf5 Qd7 Nd6 Be2 Bg7 Re8 Rg8 Nf3 Kf4 Rc6 e4 Nc3 Rb7 Rb1 a1B Qdd8 Rd7 b7 Bf6 Rc7 Rg2 Nb5 Kg4 Bb2 e3+ Kc1 d2+ Kc2 Kf4 Qa7 d3+ Kb3 Bg7 Qc1 d1Q+ Ka2 d2 Ne5 Qg1 Bg4 e2 f3 e1B Nc4 Qb6 Rc5 Bh4 Nc7 Bf2 Rb5 Be3 Na6 Kg3 Rb3 Kf2 Be5 Ke2 Rb4 Bc3 Rg1 h1Q Qdb8 h2 Rd8 Nc8 Bc7 Nd6 Qc8 Bcf6 Re1+ Kd3 Re2 Qg1 Qcb8 h1Q Re1 Qh4 Qc8 Beg5 Re6 Qgc5 Qcb8 Be3 Qc8 Nf5 Qcb8 Ke2 Qc8 Rd3 Rd4 Nd6 Qf8 Qcc6 Rde4 Rd5 Rd4 Qcd7 Ka1 Qc8 Re5 Nf5 Ree4 Rd7 Re6 Nd6
5NR1/RPBRnpb1/rp2b2n/1PR2nkB/2Q2Nn1/r4q2/b2q1BK1/7Q w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 b6 a6 Qd6 Qb3 Qc6 Qd1 Qb7 axb7 Ke7 Nf3 Kd8 Ng1 Ke8 Kf2 Ke7 e4 Kf6 d4 h5 b4 a5 g4 c5 e5+ Kg5 e6 h3 b5 h4 d6 c4 e7 a4 e8Q c3 d7 a3 d8R a2 d5 h2 d6 c2 d7 h3 Be2 Bg7 Nc3 Nc6 Qe6 Ra3 Na4 Nh6 Nc5 Ne7 Be3 c1Q Qc4 Qd2 Bd4 f3 Ne6+ Kh4 Nf8 Kg5 Rc1 a1Q Kf1 Qaa2 Bf2 Qb3 Qe1 Qbe3 Bd1 Rg8 Ne2 Ra6 Rg1 h1N Nf4 Rh8 Rg2 Ng3+ Kg1 Ngf5 Kh2 Qec3 Qh1 Qf6 Kg1 h2+ Kf1 Qc6 Rg3 Kh4 g5 Rh7 g6 Qf6 Be3 f2 Kg2 f1N+ Bf2 Qc6+ Rf3+ Kg5 Rc2 Qf6 Ra3 Qfc3 Bh5 N1e3+ Kh3 Neg4+ Kg2 Bd4 g7 Qf3+ Kf1 Rh8 g8R+ Bg7 Ra1 Ra3 Rcc1 Rd3 Ra7 Ra3 Re8 Ra6 d8B Be6 Bc7 Ra3 Rd8 Ra6 Qg2 h1B Rd7 Rh7 Qh2 Bg2+ Kg1 Bf1 Qh1 Be2 Qb3 B2c4 Rc2 Bcd5 Rc5 Rh8 Qb4 Ba2 Qc4 Qa3 Bg6 Rh7 Rh8 Nhg8 Kg2 Rh3 Bh5 N8h6 Rg8 Qad3 Qc2 Q3e2 Qcc1 Rha3 Qc4 Qf3+
RNNr1r1R/rp2Bq2/3n2kP/n1q1Q2q/2p2P2/1bN2B2/1Q4BK/2N1b1r1 w - - 0 1 illegal: No proof kernel
1rB5/np2n2N/qr1QpPk1/2b3rR/PBQ1K3/Qb3b2/2N3R1/2BQbq2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 c5 g4 h5 a4 c4 d4 b3 g5 c3 d6 b2 d5 c2 d7 h3 f6 h4 d6 h2 g6+ Ke6 f7 Kf6 g7 h3 Ra2 Ra5 Na3 b1Q Ke4 Qdb6 d8Q Rg5 f4 Be6 f5 Nc6 d7 Bb3 Nf3 Na7 Qe8 Qd6 d8Q Qa6 Q8d3 Rh6 Qb8 Rhg6 Qbd6+ e6 Qc4 Ne7 g8Q Qa1 Qh7 Rg8 Qh4 Kg7 f6+ Kg6 Qcc5 Qb1 Bb5 Rh8 Bd7 Qa1 Rg1 h1R Bc8 h2 Rg2 Rg1 Qc4 h1B Qh3 Qb1 Rh2 Rb5 Rb2 Rb6 Ra2 Rg2 Ng5 Qa1 Nh7 Rg5+ Qhf3 Rg8 Rh5 Qb1 Bf4 c1B+ Nc2 Bd2 Be3 Be1 Bc1 Nec6 Rb2 Be7 f8B Bg2 Qa3 Bc5 Qd6 Ne7 Ra2 Bh3 Qfd1 Qa1 Nb4 Bg4 Rg2 Qb1+ Kf4 Qd3 Nc2 Qf1+ Ke4 Rh8 Bd2 Rg8 Bb4 Be2 Bh6 Rd8 Bd7 Rb8 Bc8 Rg4+ Bf4 Rg5 Bc1 Bf3+
RN2bkb1/rp1rn2K/1P3B2/P3p3/n1q4B/b4N1b/1rBq3Q/3QN1NR w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 Ke2 e5 Ke3 c5 Ke4 h5 g4 c4 f4 h3 d4 c3 a4 b3 f6 h2 f7+ Ke7 g5 c2 b6 b2 d6+ Kd7 Kf5 h4 Kg6 h3 f5 Qe7 f6 Ra7 d5 Ra6 Nd2 b1Q Bd3 Qb5 Ndf3 Qc4 Ne1 Bg7 f8N+ Ke8 d7+ Kd8 f7 Qeb4 Nh7 Ke7 f8N Ra7 d8B+ Ke8 d6 Na6 Ba3 c1R Nd7 Nc5 Nb8 Bf8 Bf6 Rb1 Bc2 Qd2 Bc1 Be7 Kg7 Bd7 g6 Rb2 Ng5 Rh4 Ra2 Rd4 Kh7 Kf8 N5f3 Be8 d7 Rd6 d8Q Rd7 a5 Na4 g7+ Kf7 Ra1 Ba3 Ra2 Ne7 Bh4 Ke6 g8Q+ Kd6 Qg5 Ke6 Ra1 Kf7 Qg2 Kf8 Rb1 Qd1 Bcg5 Qd6 Ne2 Qd2 Rg1 h1B Qh2 Bg2 Bf6 Bf1 Rg7 Bg2 Neg1 Bf1 Qg3 h2 Rg8+ Kf7 Rh8 h1B Qh2 Bh3 Rg8 Rc7 Qd3 Rd7 Qde2 B1g2 Qd1 Be6 Ra1 Bgh3 Qb1 Qe3 Ng2 Qcd4 Ne2 Qg5 Nc6 Qc4 Qbg1 Rd5 Qe1 B8d7 Ra8 Rd4 Nb8 Be8 Qd2 Kf8 Rh1 Bd5 Qd1 Qd2 Neg1 Bde6 Nge1 Rd7 Kh8 B6f7 Kh7 Bg8+
3qn3/1p2K1Qp/kb2b3/nr2RP2/N2BBNRP/2b4B/1b2qQ2/1RrR2n1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 f5 c3 bxc3 gxf5 Ra5 Bf4 Ra3 Bc1 Ra8 e4 c5 Ke2 g5 Kf3 d5 Kg4 Kd7 h4 Kc7 a4 Kb6 f4 d4 a5+ Ka7 a6 c2 e6 c4 e5 c3 e7 d3 e8B d2 e6 Nd7 e7 Bh6 f6 Nb8+ f5 Nd7 f7 Nb6 f8Q Nc4 Nh3 Be6 Nf4 Na5 Qf3 d1Q Qg7 Qe2 Bb2 c1B Bc6 c2 e8R Be3 Bh3 c1B Nc3 Bb6 Rd1 Bd2 Kh5 g4 Be4 g3 Na4 g2 Rab1 g1N Bd4 Bc3 Kg4 Rc8 Re7 Rc5 Kh5 Bc8 Re5 Rb5 Kg4 Be6 Kh5 Qe3 Qf2 Bg5 Kg4 Be7 Kh5 Nf6+ Kh6 Qe2 Kg5 Kb8 a7+ Kc7 a8R Ne8+ Qf6 Ba3 Rb8 Bab2 Rc8+ Kd7 Rc4 Rf8 Rb4 Kc7 Qe7+ Kb8 Qf6 Ka7 Qe7 Qc8 Qg7 Ka6 Rc4 Rf7 Rb4 Rc7 Rc4 Nd6 Kf6 Rc6 Ke7 Ne8 Rcc5 Bd2 Rcd5 Rc1 Rc5 Bdc3 Rc6 Bd5 Rg6 Be6 Rg4 Qd8+
4b3/P1KB1kq1/r4N2/qPN1pr2/qnq5/4n1b1/R2QpB1Q/2BBRr1Q w - - 0 1 illegal: No proof kernel
6rN/P1Bbkbp1/R1p1qNB1/5n1N/QbKn2n1/3N2R1/2nr1P2/3Q1Qq1 w - - 0 1 illegal: No possible last move, all moves rejected
1B3b1b/PN2pKR1/1Bp2R1n/1nP4r/1Q1r1q1Q/bQ1b1q2/Q6N/2q2N1k w - - 0 1 legal: proof: e4 a5 g4 h5 b4 axb4 Be2 d5 exd5 f5 gxf5 Nd7 Bf3 Nb8 Bg4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 h4 g5 a4 b6 f4 g3 d6 g4 d7 g2 f6 g3 d5 b3 a5 b2 a6 Rh6 d6 Rg6 h5 Bg7 f7 Bd4 f8Q Nc6 h6 Bc3 a7 Nd4 h7 Rh6 h8Q Rh5 f5 Nh6 f6 Nb5 f7 Bg7 Bf4 Ba6 Nf3 g1B Qfg8 g2 f8Q B1d4 Rf1 g1B Nh2 Qb8 d8B c6 d7 Qe5 c3 Bc5 Qb3 Bgd4 Rg1 Qf5 Bb8 Qf4 Nd2+ Ke3 Rab1 Kf2 Ndf1 Ba3 Qe8 Bf8 Rg7 Qf3 Qg6 Bf6 Qe4 Be5 Rd1 b1Q Rd6 Qc1 Rf6 Qcf4 Bdc7 Bd4 d8N Be5 Nb7 Bd4 Ng4+ Kg1 Ngh2+ Kh1 Qhh7 Qg2 Kd3 Be5 c4 Qgf3+ Qe3 Beb2 c5 Bc3 Qb4 Bcb2 Be5 Ba1 Bbc7 Rd8+ Bed6 B1b2 Qa2 Bc3 Bb8 Bd4 Bdc7 Bdb2+ Kc2 Rd4 Qeb3 Rd8 Qhe4 Qd6 Rgg6 Be5 Qd2 Nc3 Re6 b5 Qbb2 b4 Bb6 Qg2 Qh4 Bh8 Rg7 Qf4 Rf6 Qgf3 Kb3 Bd3 Qde1 Be4 Kc4 b3 Qbb1 Nb5 Qb4 b2 Qc2 b1Q Qcb3 Nd6+ Kd4 Qbc1 Re6 Q4g4 Rf6 Bf5+ Ke5 Nb5 Qbe1 Qgg5 Qeb4 Bd3+ Ke6 Qgg3 B6c7 Rd4 Bb6 Ng4 Kf7 Qff4 Qad2 Qgf3 Qda2 Nh6+
6nK/P1pB1k2/qQr1pN1B/P2BqQ1R/N1q1R2r/8/n3b3/1bN1bbN1 w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 cxd5 gxh4 Ke2 h5 Ke3 b5 Kf4 h3 Kg5 b4 Kg6 b3 d4 b2 a4 e3 g4 e2 f4 e1Q f5 h2 f6 h4 g5 h3 f7+ Kd7 a6 Nf6 d6 Ke6 d7 Qh4 a5 Ne8 a7 Qf4 d5+ Ke5 d6 Ke6 Qc2 Ng7 Ra4 Nc6 Re4+ Qe5 Nd2 b1B Bb5 Ba6 Nb3 Qc8 d8Q Rb8 d7 Nf5 Bd2 Nb4 Nc1 Bh6 Bf4 Rb6 f8N+ Kd6 Ba4 Bf1 Nh7 Ke6 Nf6 Qa6 Qb8 Rc6 Qb6 Na2 Bd2 Bg7 Be3 Rh4 d8N+ Kd6 Nb7+ Ke6 Qd3 Nh6 Kh7 Kf7 Nc5 Qc4 Bb5 Bf8 Na4 Ng8+ Nh5 Bh6 Nf6 Be2 Kh8 e6 g6+ Ke7 g7 Kf7 Qc2 Bf1 Qf2 Be2 Qf5 Bf4+ Qh7 Bg3 Bh6 Be1 Qf5 Rc5 Bd7 Rc6 Nf3 Qa6 Rg1 h1B Rg5 h2 Ng1 Bg2 Rh5 h1Q Qf4 Ne7 g8B+ Kg6 Qf3 Bgf1 Bh7+ Kf7 Qf5 Ng8 Re3 Qhd5 Re4 Rc2 Bg6+ Ke7 Bge8 Qdc4 Bc6 Rc3 Bed7 Kf7 Bb7 Qd3 Bd5 Rc6 Bc8 Qdd4 Bd7 Qdc4
1K6/p3n3/N2QnRNB/1qr2R1N/2B5/P1B1r1pQ/1bN1Pb1q/qk3bq1 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Kd7 h4 f5 d4 g5 c6+ Kd6 c7 b5 h5 f3 Ke3 f4+ Ke4 f2 h6 g3 h7 b4 Rh5 f3 Bg2 f1Q Nh3 f2 Nf4 b3 Na3 g4 Nc2 b2 a3 b1Q Rf5 Bd7 c8Q Bg7 Nh5 Nc6 Bh6 Qb5 Qd2 Qg1 Rf1 Nge7 Qd3 Rf8 h8N Qdb6 Ng6 Qh2 Bh1 g2 Qa6 g1B Qh3 g3 Kf4 Kc7 d6+ Kd8 d5 Nd4 Be4 Re8 Bd3 Rc8 Bc4 Rc5 Ke4 Be6 d7 Kc7 d8N Kd6 Nc6 Bc8 N6b4 Ne6 Rf6 Bd7 Rf5 Bb2 Rf6 Rc6 Rf5 Kc5 Rf6 Bc8 d6 Bb7 d7 Rc7+ Kd3 Bg2 d8B Rc8 Re1 Bf1 Ke4 Nd5 Bc7 Ne7 Be5 Rc6 Bc3 Rcc8 Ke5 Rc6 Bd5 Rc7 Bc6 Kc4+ Kd6 Kb3 Ra1 Qe3 Bd5+ Rc4 Re1 Qc1 Qb6 Qa1 Na6 Ka2 Rf5 Qb3 Kd7 Rc5 Qd6 Qc4 Rd1 Qb3 Rd4 Kb1 Bc4 Qb6 Rdf4 Qb5+ Qc6 Bg2 Rf6 f1Q R4f5 Bf2 Kd6 Qfg1 Qd5 Nd8 Qc6 Bf1 Kc7 Nd5+ Kc8 Re3 Qc7 Ne6 Qc6 Qa5 Kb8 Ne7 Qd6 Qb5+
3nQ1b1/pR1r1b2/1N1bB1RR/1b1nPNr1/Qqq1R3/1q1p1B2/P2k3K/B7 w - - 0 1 legal: proof: e4 c5 d4 e5 h4 g5 dxe5 gxh4 b4 f5 bxc5 fxe4 f4 Ke7 Kf2 Ke6 c4 Kf5 g3 b5 Kg2 h5 c6 d5 c5 b4 c7 h3+ Kh2 e3 c6 Ke4 f5 e2 g4 e1Q g5 b3 g6 d4 f6 b2 g7 h4 f7 d3 Qd2 Be6 c8B Qd5 c7 Nf6 g8Q Rh7 Ne2 Qc4 Na3 b1Q Bb2 Bd6 f8R Bf7 Qd1 Ke3 Nd4 Qeb4 Be2 Nc6 Bf3 Nd8 Qa4 Kd2 Nf5 Nd5 Be6 Rc8 Bd4 Q1b3 Rab1 Rg7 Rhg1 Rg5 Ba1 Rb8 c8R Rb7 Qg6 Rd7 Rc6 Bg8 Qe8 Bf7 Kh1 h2 Rh8 Bg8 Rg4 Bf7 Kg2 h1B+ Kh2 h3 Rh6 Bg2 Re4 Bg8 Be2 Bf3 Rb6 Bh5 Bf3 Bhf7 Rg1 Rh5 Rgg6 Rg5 Kh1 h2 Rb7 Rh5 Kg2 h1B+ Kg1 Rg5+ Kh2 Bg2 Nb5 Bf1 Nc7 Bh3 Na8 Bg4 Nb6 Bh5 Qf8 Be8 Rg7 Bhf7 Rgg6 Rc7 Qe7 Bb5 Qe8 Rd7
r2n1kbq/pQ4rR/7P/2pRB1Qn/1qPN4/2Qn3r/1QbNr1B1/R2K4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 e4 d5 Be2 Bd6 Bd3 dxe4 Bf1 e3 Bd3 e4 Bf1 Be5 fxe5 Qd4 Na3 Qd5 Nb1 Qd8 h4 c5 b4 f5 d4 g5 c4 e2 b6 g3 b7 g4 d5 g2 h5 g3 d6 f4 e6 f3 b5 f2+ Kd2 e1R b6 Nc6 b8Q Kf8 b7 Nf6 Qc2 Re2+ Kd1 e3 Nf3 g1R d7 g2 Nbd2 Qb6 Qg3 Qb4 b8Q Nd8 Qc3 Bb7 Qg4 Bd5 Bb2 Rh7 Qb6 Rg7 Rh3 Rh1 Qg5 g1Q Nd4 Qh2 Qb7 Qb8 Rh4 Rh3 Bg2 f1B e7+ Kf7 h6 Nh5 e8R Be6 Re7+ Kf8 Re4 Bg8 R4e5 Qc8 Rd5 Qb8 Bh1 Bg2 Qe5 Be4 Bg2 Bb1 Qg5 Rg6 Rh7 Qe5 Qc1 Qh8 Bc3 Rg7 Qb2 Rh2 N4b3 Rh3 Be5 Rf2 Nd4 e2+ Kc1 e1N Kd1 Re2 Qe3 Ke7 Qec3 Nd3 Qb5 Nc6 d8Q+ Kf7 Qh4 Nd8 Qb7+ Kf8 Qg5 Bc2+
n2n1k1B/p1QB3P/R1N2q1N/1r1Bb2R/b1p3r1/1B1P1Qn1/2q2RK1/2b1b3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 f5 h4 g5 e4 c5 b4 c3 d3 c2 b6 g3+ Kg2 c4 b7 f4 h5 g4 b5 Qd6 e6 Qc5 b6 Nd7 b8Q Qd5 e7 Qd6 h6 Qg6 h7 Qf6 e5 Bg7 b7 Nh6 Ra6 Rg8 Nc3 Nf7 Rh5 Nd8 Nge2 Nb6 Ne4 Bd7 Ng5 Ba4 Qc7 Rb8 Bb2 c1B Nd4 Na8 Nf7 Bh8 Nh6 f3+ Kg1 g2 Nc6 f2+ Kh2 g1N Kg2 g3 Qf3 Ne2 Bc3 Rc8 b8R Rg4 Rb2 Rb8 Ra2 Rb5 Rc2 Ng1 Be2 Bg7 Bd1 Ne2 Ra2 Bh8 Bb3 Bg7 Nf5 Kf7 e8B+ Kf8 e6 Bh8 Bf7 Bg7 Kh3 g2 Nh6 f1Q Ba1 Ng3 Rf2 Bh8 Kh2 Qd1 e7+ Kg7 e8B g1B+ Kg2 Qc2 Bd5+ Kf8 Bd7 Bg7 Re2 Bf2 Be5 Be1 Rf2 Qf7 Bc3 Be5 Ba1 Bd6 Bf6 Be5 Bh8 Qf6
Rr5N/p1qP2N1/1p5b/2b3br/1BBq1nNk/Q1R3R1/K1PQb3/2N1n2q w - - 0 1 illegal: No proof kernel
1n2b2N/qr4QN/1rNRb3/B4r1p/1Q1p1n1Q/1rR1P2N/3r3P/2KB1kr1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 c4 Ke7 b4 Kd6 f5 Ke5 e3 Ke4 b6 g5 b7 d5 b5 a5 c5 h5 f6 a4 c6 a3 c7 a2 f7 g4 f8N d3 b6 d4 Qe2 g3 Ba3 g2 Bb4 Qe7 Na3 Be6 c8Q Ra6 Nb5 Rh7 Qc7 Nf6 Qe1 Nd5 Be2 f1B Kc1 f2 Nh3 g1R Ba5 Nf4 Bd1 Qf7 Rb1 a1R Qb4 Rhg7 Nh7 Ra3 Qe1 Be2 Nd6+ Kf3 Ra1 f1R Qh4 Qd7 Nf7 Kg2 Nh8 Rb3 Qe5 Re7 Qg7+ B2g4 Ra4 Bf7 Rc4 Be8 Rc3 Rf2 Rc6 Kf1 Rd6 d2+ Kc2 Nc6 b8Q Qa7 b7 Rc7 Qg6 Be6 Qg7 B8f7 Qbf8 Rab6 b8N Rcb7 Qfe7 Be8 Qef8 Ne5 Nc6 Rf3 Qf5 Nd7 Qc5 Nb8 Qb4 Rg3 Bf3 d1R Bg4 Rd2+ Kc1 Kg2+ Bd1 Rg6 Qc3 Rf1 Qb4 Rff2 Re1 Rf3 Re2+ Kf1 Rg2 Rff2 Rg5 Rf3 Rc5 Rg5 Rc2 Rf5 Rc5 Rg3 Rc3 Rg1
r2Q2N1/Q1b1BKQb/8/2PR1nN1/3Pp3/3nn2R/1n1p1kBr/2QnRn1q w - - 0 1 illegal: No proof kernel
nN3N2/1n5q/1BQ2N1P/1Nrr3R/1KrRr2p/2r2P1Q/p3BR2/kbb3r1 w - - 0 1 illegal: No possible last move
2kn3N/5Q2/b2QRnP1/2b2pPp/B2r2bK/1R2b3/NQbbN1r1/B3qN2 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 Kd7 Kg3 f5 a4 c5 e4 b5 d4 h5 a5 b3 d5 c3 e6+ Kc7 g6 c2 e7 b2 e8N+ Kd7 e5 b4 e6+ Ke7 a6 b3 a7 c4 Rh3 c3 Nf6 Qa5 d6+ Kd8 d7 Qe5+ Kh4 Na6 g4 Ba3 g5 Nb4 Qd6 Ba6 Ne4 Nf6 Bb5 Nc6 Ned2 Bc5 Ba4 Qe1+ Rg3 Be2 Nf1 Bg4 Ne2 Rh7 Bf4 c1B Be5 c2 Nbc3 b1B Na2 b2 Bc3 Rc8 a8Q Bd2 Qb7 c1B Qb3 Be4 Qbb8 b1B Qb2 Bbc2 Bd4 Qd1 Rb3 Be3 Be5 Bcd2 Rc1 Bcd3 Rc4 Rb8 Rcb4 Qc1 Rb6 Qe1+ Neg3 Rc8 Qb8 Be7 Qa3 Ba6 Ba1 Rg7 Qb2 Bc3 Qf4 Bd6 e7+ Kc7 d8N Rh7 e8Q Rd7 Nf7 Nd8 Ne5 Be7 Qg8 Rd4 Re6 Bcb4 Qf8 Kb8 Qg8 Rc2 Nf7+ Kc8 Nh8 Rg2 Qf7 Bc2 Qe5 Bec5 Qd6 Rf2 Ne2 Bbd2 Qf4 Rg2+ Qg3 Qc1 Qd6 Qe1+
1rNnNBq1/4K1B1/Qp2rr2/QpPr2R1/1Prn3N/2k1B1N1/1R1r1b2/3b4 w - - 0 1 legal: proof: e4 c5 g4 h5 gxh5 f5 exf5 a6 d4 cxd4 Bb5 axb5 Ke2 Kf7 Kf3 Kf6 Kf4 d5 b4 b6 h4 e6 c4 g6 a4 d3 c5 d2 h6 d4 h7 d3 h5 Qd7 a5 Bg7 a6 Qa7 h6 Bf8 Rh2 Qg7 a7 Be7 Na3 Nc6 Nc4 Nd4 Qa4 d1R Be3 d2 Nd6 Rb8 a8Q g5+ Ke4 g4 f4 g3 Q8a5 g2 Ne2 g1R Ng3 e5 Kd5 Bd7 Nc8 e4 Re2 Bd8 Kd6 Ne7 Ra2 Be8 Rb2 Bh5 Rg2 Rf8 h8B Nec6 h7 Be7+ Kd7 Nd8 Qa6 Rc1 Q4a5 Rgd1 Rg1 Rc4 Rg2 Kf7 f6 Qg8 Bg7 Kg6 f7 Bh4 Nf1+ Kf5 h8N Bf2 Ke7 Re1 Rg4 d1R Ng6 Re2 Rg1 Red2 Ng3+ Kg4 f5 Kf3 f6 Bg4 Nf1 Ke2 Nh4 Kd3 Rg3 Bh5 Rg5 Kc3 Ng3 Be2 Nhf5 Bg4 Nfd6 Bf3 Bf4 e3 Ne8 e2 Be3 e1R Rf5 Qh7 Rg5 Rh8 f8N Qg8 f7 Rh6 Ng6 Bh5 Nh4 Rf6 f8B Be2 Kd7 Bf3 Bf4 Ree6 Be3 Rf1 Nc7 Bd1 Ne8 Rh1 Nf3 Rh5 Nh4 Rd6+ Ke7 Rc6 Rg4 Rd5 Rg5 Rce6#
B4b2/1b3q2/P2nB1kn/N2nB2r/B2Qn3/1pp1r3/R1RnK1P1/Nn2Q1Q1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 e4 f5 d4 Kf7 a4 c5 a5 b5 g6+ Kf6 a6 h5 d6 f3 g7 h4 d7 h3 e5+ Kg6 e6 f2+ Ke2 h2 e7 b3 d5 b2 d6 b4 Nf3 f4 Ra2 c4 Qe1 b3 Nbd2 b1N Nd4 c3 Nc2 Nh6 g8B Qe8 d8Q Qf7 e8B Nd7 Nc4 Bb7 Na5 Ne5 d7 Nc4 Qb6+ Nd6 d8Q Rb8 Rg1 h1N Ba4 Rc8 Na1 f3+ Ke3 Rc4 Be2 f1N+ Kd3 f2 Bf4 Rc7 Bf3 Nhg3 Be5 Ne4 Ke2 Re7 Qd4 Re6 Q8b6 Nfd2 Rh1 f1N Qg1 Qh7 Qbd4 Ne3 Rc2 Re7 Be6 Qf7 Ra2 Nc5 Bfc6 Nce4 Rc2 Nd5 Rh5 Bc8 Ba8 Bb7 Rh4 Nhf5 Rf4 Rh5 Rf3 Nh6 Rd3 Nf3 Rdd2 Re8 Ra2 Re7 Rdb2 Nfd2 Rc2 Nc7 Bh8 Nd5 Bh3 Ree5 Be6 Reg5 Bg7 Rg3 Be5 Re3+
KN1rb3/Br2P1Qq/8/2PBRrb1/1npQR2R/1kr3p1/r5rN/2QnQ3 w - - 0 1 illegal: No proof kernel
2n5/RR1PQbQ1/2BBp1qN/n3QpB1/KB1n1N2/r4Pk1/1b3n1r/6nn w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 hxg4 d4 Kd7 Kd2 Ke6 Kc3 Kf5 Kb3 a5 h4 g5 c4 e6 c6 f6 b6 g3 d5 g4 c5 g2 f3 e3 c7 Kf4 d6 g3 h5 f5 h6 Be7 b7 Nf6 h7 Ng8 c6 Qe8 Qe2 Bf6 Nd2 Ne7 Ne4 Qg6 Ka4 Bb2 Nf6 Bd7 c8Q Be8 d7 Bf7 c7 Nbc6 b8B Nd4 Qd8 Nc8 Ng4 Ra7 Bd2 Ra6 Qb5 Ra7 Bc3 e2 Bb4 e1N Qe7 Nd3 Nh6 Nf2 Rh2 Nh1 Nh3+ Ke3 Be2 g1N Nf4 g2 Qe5+ Kf2 Bb5 Kg3 Bc6 Nh3 Ra2 g1N Qg7 Re8 h8B N3f2 Qe5 Rg8 Bf6 Rh8 Ra3 Ne4 Rd2 Nef2 Bg5 Ra6 Rdd3 Ra8 Rdb3 Ra7 Ng8 Rh2 Nh6 Rb7 Qg7 Be8 Bc3 Rb5 Ra1 Re5 Rb7 Bf7 Bb4 Re3 Ra3 Na7 Ra1 Bc3 Ka3 a4 Bc5 Bb2+ Kb4 a3 Ka5 a2 Bb4 Ndb5 c8Q Rc3 Qcd8 Nc8 Qc7 Nd4 Qce5 Re3 B8d6 Rc3 Rb1 a1N Rc1 Rb3 Rc5 Re3 Ka4 Nab3 Ra5 Rd3 Ra6 Na5 Raa7 Ra3+
N4B2/rP5K/2rQ4/b2bB1N1/B1RPp1nQ/B1rp2r1/q5rR/R3rkn1 w - - 0 1 illegal: No proof kernel
nR2r1nB/np4NQ/k2P4/3b4/1Qn3p1/b1P2NKB/2q2r2/2nBNRBn w - - 0 1 illegal: No possible last move, all moves rejected
2N5/1pPnBk1K/4brb1/bRQ1R2N/N1BPq3/2Rnbr2/7p/1b3QbN w - - 0 1 illegal: No possible last move, all moves rejected
3r1Br1/p2bR1nr/3r2nk/Q2r4/BPNQQN2/b3p1PB/3R1r2/qQK5 w - - 0 1 illegal: No possible last move
4Nb2/1R1r1QbB/QQnn1N1R/2nR2P1/1Pb1p2K/3bn1p1/3q3R/1k4Br w - - 0 1 illegal: No proof kernel
4bN1R/2b1rbK1/5R1q/1nrP3P/1pRQ1B2/Q2R1pn1/4b1rN/NB1r3k w - - 0 1 illegal: No possible last move
q2BQ3/B3rR2/b3Q1P1/2Np1rp1/nKbrb3/N1R1n3/R3Pk1r/2R1bB2 w - - 0 1 illegal: No proof kernel
3B1B2/q4R1Q/r3Pn1Q/4R3/n1kbBb1B/8/pP1Rpn1r/bK2NNnb w - - 0 1 illegal: No possible last move, all moves rejected
n3bbnN/N1NRN3/b1p5/1rQ3pR/1P1br1q1/1B3k2/2PQ2n1/nBK4B w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 Kf7 b4 Ke6 f4 Kd5 e4+ Kd4 h4 d5 b6 g5 f5 a5 h5 g2 e6 c6 b7 a4 e7 a3 e8B a2 h6 g3 f6 Bh3 e5 Ke4 e6 d4 h7 d3 f7 Ra5 e7 Qc8 Nc3+ Kf4 Nd5+ Ke4 Ne2 g1N Nec3+ Ke5 Nb5 Ke4 Na7 g2 Kc1 Rb5 Qd2 Na6 b8N Bd7 Rh5 Nc7 Na6 Na8 Nac7 Nf3 Be2 Ne1 Bf3+ Kd4 Rb1 g1B Bh1 Ng2 Rb3 Ke4 Rc3 Bh6 f8Q a1N Bf7 Kf3 e8B Bd4 Qc5 Bhg7 Be6 Bf8 B8f7 Be8 Ne7 Qd7 Ba2 Qg4 Qe1 Qe4 Ra3 Qg4 Bfb3 d2+ Kb1 d1B Qd2 Bg1 Kc1 Be2 Bb1 Bd4 Ra6 Ra5 Rb6 Ba6 Rb8 Rb5 Rd8 Nf6 Rd6 Rg8 h8N Rg6 Rd5 Ng8 Rd8 Re6 Rd7 Re4
4q2B/NrN5/1p1n2Q1/1nrQ4/1Pb1P2b/kpn1BQ2/4N1rn/K3RrNR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 b4 exf4 Bg2 a4 cxd5 Bd7 Be4 Bh3 Bc2 Bc8 Bb3 axb3 e4 Kd7 d4 c5 Kd2 f5 Kc3 g5 Kb2 g4 a4 g3 h4 b6 a5 g2 d6 Kc6 a6 Kb5 d5 c4 a7 f3 h6 f4 h7 c3+ Ka3 f2 h5 f1R h6 c2 Kb2 f3 d7 f2 d6 Na6 Qd2 Ne7 Qe1 Nf5 Bf4 c1R Qd1 Be7 Qf3 Qe8 d8Q Nc7 d7 Rc5 Be3 Rg8 h8Q Rb8 a8N Bh4 h7 Rb7 Qg7 Nd6 Qg6 Rg7 h8B Rg8 Ne2 g1N Nd2 Rg7 Rc1 Ka4 Re1 Ncb5 Ka1 Ka3 Nc7 Rg8 Qdg5 Rg7 d8N Be6 Qe5 Bc4 Qd5 Rg8 Nc6 Rg7 Ned4 Ne2 Na7 Nec3 Ne2 Rg8 Qgf6 Rg2 Qg6 Qf8 Qff6 Qe8 Nf3 Rfg1 Qf8 f1N Qf4 Nh2 Qfg3 Rf1 Nfg1 Nd4 Qf3 N4b5
2kn3r/1N3BP1/3R1R2/pQ2pnq1/BQ6/b2P3n/r1rN2BQ/1nB1Kbr1 w - - 0 1 illegal: No proof kernel
1Q1RN2b/3p1Pb1/1N1nRnr1/K1BR3p/bR1b2P1/3B1B1Q/r2k2q1/n6n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 b4 Ke5 f4+ Ke4 c4 h5 f6 a5 f7 e5 c5 d3 Kc3 a4 f5 a3 c6 a2 c7 d2 f6 Ke3 b6 h3 b7 e4 b5 h2 b6 Ne7 Kb4 Ra3 Nh3 Rh6 Bd3 Rg6 Nf2 Bg7 f8R Nf5 f7 Nd6 Qb3 Bh8 Rf1 h1N Nc3 Bd4 Bb2 d1N Na4 Nc3 Ka5 Nd5 Rfd1 Na6 b8Q Nf6 b7 Nb4 Rac1 a1B Rc6 Qe7 Rd8 Ra2 Ba3 Nc2 Bc5 Bb2 Qa3 Na1 Nb6 Qe5 Rd2 Qg3 Rd1 Qg2 Rd2 Nde8 Re6 Nd6 Rd1 Kf3 Rd2 e3 Ne4 e2 Rd1 e1B+ Rd2 Nb5 Nd6 Bh4 Ne8 Nd6 Qa7 Bhf2 b8R Bb7 c8B Bc6 Bb7 Kf4 Ba8 Ba4 Bf3 Be5 Rb7 Bfd4 Qb8 Ke3 Na8 Nfe4 Rb4 Bh8 Nb6 Bc3 Re5 Bg7 Rd5 Nf6 Re2+ Kf4 Re6 Bh8 Bfe4 Ke3 Bf3+ Kd2 Qb3 Rg7 Qb1 Rg6 Qf1 Qg3 Qh3 Qg2 Na8 Bg7 Nb6 Be5 Nc8 Bh8 Bd1 Bcd4 Nb6 Nfe4 B1e2 Beg7 Bf3 Nf6
Qn4qr/r1Pkpb2/B3N1Bn/Q2NKrBn/p5Q1/4Q1RR/1n1P4/r3b3 w - - 0 1 illegal: No proof kernel
2b1R3/nPk5/K1B1Q1br/q2Rp1r1/1PR1n2b/BpN4b/N2QB3/Bnn5 w - - 0 1 illegal: No proof kernel
3BB1B1/r2rn1n1/1qNR1p1Q/3q1PR1/1n2k3/NqPpB1K1/2q1NQ2/1b4q1 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 g4 Kd7 b4 Kd6 f4 Kd5 b6 a5 b5 h5 b7 e5 f5 h3 g5 f6 b6 h2 g6 e4 g7 e3 Ba3 e2 Bb4 e1Q Be2 h4 Bh5 h3 Ne2 a4 Rg1 h1Q Rg5 a3 Bc5 a2 Na3 h2 Qc1 Qf2 Be8 Nc6 b8N d1Q b7 Nge7 g8B+ Ke4 d5 Rh7 d6 Qb6 d7 Ra7 d8B Be6 Be3 Nb4 Nc6 Bf7 Rb1 a1Q+ Rb2 Qb1 b8Q Qdg1 Kd2 Ba2 c3 Qhg2 Rb3 h1N Qh2 Ng3 Qf1 Qff3 Qh6 Nh5 Qf2 Ng7 Rb2 Na6 Rb5 Qb3 Rd5 Bb1 Rd6 Nb4 Bc5 Q1h2 Ke1 Qe3 Bd4 Qe5 Bc5 Qed5 Bd4 Qh2 Bc5 Qd2+ Kf1 Qdc2 Be3 Qh5 Kg2 Qh1+ Kg3 Qg1+ Kh4 Nh5 Kh3 Rf7 Kh4 Ng7 Kh3 Nc8 Kh4 Rfd7 Kh3 Ne7 Kh4 Qgd1 Kg3 Qg1+
1Q4K1/r1n1qrp1/3b4/r3BpR1/1B3P1q/n2R1PBk/N3Nr2/QB1r1qQ1 w - - 0 1 legal: proof: d4 h5 a4 c5 g4 b5 axb5 cxd4 f3 Bb7 f4 Bf3 exf3 hxg4 Kd2 e5 Kd3 a5 Ke4 d5+ Kf5 e4 c4 a4 h4 d3 b4 d2 h5 g3 c5 e3 c6 g2 b6 e2 h6 e1Q h7 a3 c7 d4 c8Q d3 b5 a2 b7 Bd6 b6 Ra5+ Qc5 Nd7 b8B Ngf6 b7 Qh4 Ba3 Qe7 Nc3 Nd5 Ba7 Rf8 b8B Nc7 h8Q Ne5 Bb4 Nc4 Nge2 Na3 Rg1 f6 Kg6 f5 Rb1 a1R Rb3 Ra2 Qc1 d1Q Qa1 d2 Qd4 Rc2 Na2 Qc1 Rd3 d1R Qg8 Qb1 Qb3 Rf7 Bac5 Ra7 Be1 Qc1 Bcb4 Rc5 Bg3 Rca5 Rh1 g1R Qbb2 Rg2 Qg1 Qh8 Rh5 Rf2 Rg5 Qh4 Qe5 Qg4 Kh7 Qh4+ Kg8 Qc4 Nec3 Qb5 Rd4 Qa6 Bd3 Qc4 Bb1 Qf1 Qe2 Kd7 Qc2 Ke6 Rd3 Kf6 Qcb2 Qg4 Qd2 Be5 Na4 Nd5 Bc5 Qh5 Bbd6 Nc7 Qb4 Qh2 Qb8 Qh1 Rh5 Kg6 N4c3 Qhh3 Bd4 Qg4 B6c5 Bd6 Be5 Qgh3 Rg5+ Kh6 Rg6+ Kh5 Ne2 Qh1 Bb4 Qhh3 Bh2 Kh4 Rg5 Qg4 Bg3+ Kh3 Qd8 Qh5 Qb8 Qh4
2rBkb2/2q3n1/1nKn1rN1/2PpB1R1/1BrP4/1pQ1R3/1q2B3/1QnN2Nn w - - 0 1 illegal: No possible last move, all moves rejected
2qR2bN/R2B2np/1K5B/3qbqqP/3P2r1/3RN1kn/2Q1pR2/2qn1QN1 w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 f5 d4 cxd4 e3 fxg4 Bc4 a5 Kf1 d5 Bd2 d3 Kg2 d4 Bc1 d2 Be2 d3 Bf1 Ra7 Qe2 Rd7 Qd1 Rd4 exd4 Qc7 Qf3 Qb6 Qd1 Qd8 h4 Kd7 c4 Ke6 f4 Kf5 Kf2 g5 Ke3 e5 b4 e4 c5 a4 c6 a3 h5 g3 c7 a2 b6 g2 b7 g4 b5 g3 b6 Nd7 b8N Bg7 b7 Nf8 Qb3 Kg4 f5 d1Q f6 d2 f7 Qd5 Rh3 Be6 c8R Qc2 Nc6 Be5 b8R Nf6 Ne7 Ng6 f8Q Ne8 Bb5 Nf4 Nc3 Bg8 Nd1 Ng7 Rd8 Qc8 Ng6 Qf5 Rh2 Nh3 Qc2 Qc8 Ke2 e3 Kd3 e2 Qf1 Qf5+ Kc3 Qc8+ Kb4 Qf5 Nb2 d1N Ka5 Qc8 Bh6 Qf5 Rb1 a1Q+ Kb6 Qaa8 Rb7 Qb8 Bd7 Qc8 Nf3 g1Q Nc4 g2 Rb3 Qh1 Ne3+ Kg3 Ra7 g1Q Rc3 Qhg2 Rd3 Q2h1 Nc4 Qe3 Rf2 Qc1 Ng1+ Qhf3 Rb7 Qfg5 Ne3 Qff5 Ra7 Be6 Ra2 Rf8 Ra7 Bg8 Nh8 Rf6+ Bc6 Rg6 Ra1 Qgf4 Ra7 Rg4 Bd7 Q4g5
1Bk1B3/R3r3/R5N1/Q2b2pB/P1N2B2/r1q1p1P1/1rr3n1/1brqbQRK w - - 0 1 legal: proof: e4 c5 d4 g5 dxc5 a5 b4 axb4 h4 f5 h5 fxe4 Kd2 Nc6 Ke2 Ne5 Ke1 Ng6 hxg6 Bh6 Qd2 Bg7 Qd1 Bf8 f4 d5 Kf2 Kd7 c4 b5 f5 e5 f6 h5 g7 b3 f7 h4 g3 h3 a3 b4 Qe1 b2 Nd2 b1R Ngf3 b3 Kg1 h2+ Kg2 b2 Be2 d4 Nh4 d3 Ng6 Ne7 g8Q Bb7 c6+ Kc7 c5 Nf5 Qg7 Qd4 Nc4 d2 Qf6 d1R Be3 Rdc1 Qc3 Qd1 Rg1 Rh7 Bh5 h1R Bd2 Bd6 f8B Rd7 Bg7 Re7 Be3 Kd8 c7+ Kd7 c8R Bd5 Rc6 Nh4+ Kf2 Ra4 Rc7+ Kd8 c6 Bb4 Ra7 Ra5 c7+ Kc8 Qe1 Rh2+ Kf1 Rg2 Qf3 Rgc2 Bf4 e3 Qg2 e4 Bge5 e2+ Kf2 Bg8 Qgf1 Bd5 Bd6 Nf3 Kg2 Nh4+ Kh1 Ng2 Qd2 e1Q Ra2 Kd7 c8B+ Kd8 Bb8 e3 Bd7 Ra6 Bb5 Kc8 Qc3 Qed2 Be8 Qd3 Qf6 Be1 Qb6 Qc3 a4 Ra1 Qa5 b1B Rb2 Ra3 Rb4 Rae6 Rb6 Rc6 Rba6 Rb6 Bc6 Rbb7 Be8 Rbb2
3Q2q1/3R4/2p2pBK/N1Qbrn2/1BP1rP1R/B3Bq1r/1Nk2b1r/2rRq3 w - - 0 2 legal: proof: e4 g5 a4 b5 axb5 d5 Ra5 dxe4 Ra6 Bh6 Ra1 Bf8 b4 a5 h4 gxh4 Ra2 a4 Ra3 Nc6 Ra1 Na5 bxa5 Qd3 Ne2 Qd7 Ng1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Kd4 f4 h5 g4 c6 c4 a3 b6 e3 a6 e2 a7 Kd3 b7 h3 b8B h2 Nf3 a2 Ba3 h4 Nd4 h3 Bbd6 Qe8 Nc3 e5 Na4 e4 Nb3 e3 Bdb4 Bd6 Na5 Rb8 a8R Nh6 Ra7 Be6 Rd7 Bd5 Qc1 Nf5 Nb2+ Ke4 d4 e1Q Qc3 e2 Rd1 a1R Qg3 Ra2 Qf2 Bc5 Qg1 Rb5 Qf2 Be6 d5 Qc8 d6 f6+ Kg6 Bd5 g5 Rh5 Qg1 Bf2 Bg2+ Ke3 Be4 Rh8 Bc2 Re8 Kh7 Re4 g6 Qa8 g7 Qg8+ Kg6 Qc3 Bb1 e1Q Bd3 Ra1 Kh5 Rc1 Bc2 Qb8 g8Q Ke2 Qd8 Qf3+ Kg6 Qc8 Rg7 Qe6 d7 Qg8 Bb1 Bh4 Qc5 Bf2 Rg1 h1R Rg4 h2 Rh4 Rf1 Bc2 h1R Bb1 Rh3 Bc2 Nd4 Kh6 Rfh1 Rh7 R1h2 Rf7 Re7 Bg6 Ke3 Qe8 Ke2 d8B Re4 Rd7 Ke3 Bb6 Ke2 Qd8 Ke3 Na4 Ke2 Bd2 Kd3 Bdb4+ Kc2 Nb2 Bf7 Qcf8 Re5 Ba7 Bd5 Bac5 Ne2 Be3 Ng3 Qc5 Nf5+
NkB5/p1n1Bq2/5p1b/1nn1Q1Qb/4RP1R/q5nK/r2QP2n/2N1RR1q w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 cxb5 Ne7 b6 Ng8 b5 Nc6 a5 Rb8 a6 Rb7 axb7 Nb8 f4 h5 Kf2 d5 g4 Kd7 Kg2 c5 g5 h3+ Kh2 h4 g6 d3 g7 c4 Qa4 c3 Bb2 c2 Qb4 c1Q Qc5 f6 Ra5 d2 Ba3 d1N Nc3 d4 Bg2 d3 Nf3 d2 Ne1 Rh5 Qg5 Ne7 g8Q Qe8 Nd3 Ne3 Na4 d1N Qa2 Na6 b8Q Nc3 b7 Bh6 b6 Qf7 Qbe5 N7d5 b8R Nb5 b7 Nc5 Rf1 Ndc7 Qd2 Qc3 Bb4 Qa3 Nb6+ Kd8 Ra4 Ng4+ Kh1 h2 Na8 Kd7 Bh3 Kd8 Kg2 h1N Re1 Ng3 Rf1 Kd7 Nc1+ Kc6 Re1 Nh2 Be6 Bd7 Rh8 Be8 b8R h3+ Kg1 Nb7 Be7 Nc5 Rd8 Kb7 Bc8+ Kb8 Re4 Nf3+ Kf2 h2 Kg2 Rh3 Qb4 Rh5 Rdd1 Rh3 Qd2 h1Q+ Kf2 Nh2 Rf1 Nf5 Rde1 Rb3 Rh7 Rb2 Rh8 Ra2 Rh7 Bg7 Rh6 Ng3 Rh4 Qhf3+ Kg1 Q3h5 Kf2 Bh6 Kg2 Qhf3+ Kh3 Qh1 Re3 Qg7 Re4 Bh5 Qa1 Qh7 Qae5 Qf7
k7/1n2Q3/3bnQ2/1KNb3p/qBRBRpnP/2N5/Q4Prn/1N1nQqb1 w - - 1 2 legal: proof: d4 b5 h4 g5 a4 c5 axb5 d5 e4 a5 g3 g4 Bh3 gxh3 Ra2 Ra7 Ra4 Rd7 Ra2 cxd4 Ra1 d3 Bh6 d4 Bc1 Rd5 exd5 Ba6 Qh5 Bb7 Qd1 Bc8 Kd2 Kd7 b4 Kc7 c4 Kb7 d6 f5 c5 h5 d7 e5 b6 h2 b5 e4 c6+ Ka8 g4 e3+ Ke1 e2 Kd2 e1N c7 a4 g5 a3 g6 a2 g7 Na6 Qe2 Bd6 Ba3 Nh6 g8Q Ng4 Bb4 Qe8 d8Q Nc5 Qde7 Nc2 Qe1 Be6 Ne2 Bd5 Nec3 Nb7 Qgf8 Rg8 Qff6 Rg7 Rf1 h1Q c8Q+ Bb8 Qcd7 Nh2 Qde6 Bd6 Rg1 Rg6 Rg4 Qf1 Re4 Rg2 Qe6f7 Ng4 Qg8 Bh2 Qgf7 f4 Qf7e6 Bg1 Qg8 Nc5 Qgf7 Nh2 b7+ Ka7 b8N+ Nb7 b6+ Ka8 Na6 Qa4 Kc1 d2+ Kb2 d3 Nc5 Nd4 Qg8+ Qe8 Ka3 d1N Qge6 d2 Qg8 Qf8 Ka4 Ne6 Rc4 Ne3 Kb5 d1N Qgf7 Na5 Qg8 Neg4 b7+ Ka7 b8B+ Ka8 Bc7 Nb7 Be5 Qb8 Qgf7 Qa7 Bd4 Qa3 Nd2 Qb3 Rc1 a1B Ndb1 Qa3 Rc2 Qb3 Re2 Bb2 Re3 Ba3 Re4 Qa4+ Kb6 Qc2 Na6 Qb2 Rc5 Qc2 Ba5 Nc7 Qf7e6 Bc6 Qa2 Qa4 Rc4 Bd6 Nc5 Ne6 Bb4 Na5 Ka6 Bb7+ Kb6 Bd5 Ka6 Nb7+ Kb6 Qa7+ Kb5 Qa4+
1q3R2/N1q1p2n/4bb2/1Q1QPnr1/K2P3B/1n1p3B/nN2RR1R/knqQ4 w - - 0 1 illegal: No proof kernel
4N2R/1b2nbrq/1N2b1Qp/2n3BB/2bPpNK1/2kN1QR1/4P1qq/2bQ4 w - - 0 1 legal: proof: c4 b5 g4 a5 h4 g5 f4 Bh6 h5 Bf8 b4 d5 cxd5 gxf4 g5 axb4 Rh4 Ra6 Rh1 Rg6 hxg6 Bd7 Qc2 Bg4 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 a4 Kc5 d4+ Kc4 a5 f5 g7 c5 a6 e5 d6 b3 a7 b4 a8Q e4+ Kf2 f3 Kg3 h6 g6 b2 d7 b3 Nd2+ Kc3 Qa6 b1B Nh3 c4 Qd6 b2 Ra2 f2 Kf4 Qc7 d8N Bb7 Rg1 Ne7 g8Q Nd7 g7 Nc5 Ng5 Rh7 Rg4 Bd3 Bg2 f1B Nge6 b1B Bf3 Bh3 Ra8 Ba2 Nc6 Qd7 Kg3 f4+ Kh4 Bb3 Qf7 Qc7 g8N Rg7 Rg1 Bf5 Bg4 f3 Nf6 f2 Ne5 f1Q Ne8 Qg2 Nf4 Be6 Bh5 Qd7 Qg6 Bf7 Qdf6 Qf5 Qg3 Qh7 Qf3 Na6 Qg5 Nd5 Qgg3 Ba3 Nc7 Ne7 Rh8 Kb4 Nh3 c3 Qfg4 c2 Q4f3 Bbe6 Ne8 Qf1 Qg6 Bb5 Rg4 Qg2 Ndc4 Bb2 Bg5 c1Q Nf4 Nc5 Qdf1 Qe1+ Rg3 Bc1 Nb6 Bbc4 Ned3+ Kc3 Qh1 Bed5 Kg4 Qeg1 Na8 Q2h2 Nb6 Qgg2 Qd1 Bde6+
kq2b1R1/1p1N3n/bb1p1B1b/RBB1qN1b/2BP2Q1/7Q/1N1q1KP1/6nr w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 Ra5 c5 Rb5 c6 Rd5 Kf2 e5 hxg5 exf4 Ke1 Ke7 Qa4 d6 Qd1 Re5 Rh6 Ke8 Rh5 Re7 Rh1 Rd7 cxd7+ Ke7 e4 f5 a4 c5 a5 h5 a6 f3 e5 b3 g6 b2 a7 f4 a8Q c4 g7 h4 d3 f2+ Ke2 h3 e6 c3 Nd2 b1Q Ba3 c2 Qe1 c1B Nb3 f3+ Kd1 h2 Qe2 Be3+ Nc1 Nf6 g8B Qa2 Qe1 Nc6 Qe2 Ne5 Bc5 Bfh6 Qa3 Nh7 Qb3 Qda5 d8B+ Ke8 e7 Bg4 Bc4 Kd7 e8N Kc8 Ng7 Kb8 Bh4 Bh5 Bf6 Ka8 Nf5 Qc7 Bb5 Qb8 Qe6 Bd4 Qe4 Bde3 Qg4 Bd4 Be2 f1B Ke1 Be8 Qh3 Bde3 Qc4 Bh5 Qcg4 f2+ Kd1 Nf3 d4 Bd2 Bed3 Ba5 Bdc4 Bb6 Nd3 Be8 Nb2 Be2+ Kc2 Bd1+ Kd3 f1B+ Ke4 Bf8 Ke3 Bh6+ Kf2 Bd3 Ne2 Ng1 Nc3 Bf1 Na4 Bd3 Qg6 Bh5 Qgg4 Be2 Nd1 Qd2 Ndb2 Nf3 Rhc1 h1Q Rc3 Ng1 Rg3 Nf3 Ra3 Qb1 Ra2 Ng1 Raa3 Qe4 Ra1 Ba5 Ra2 Qe5 Nb6+ Ka7 Nd7+ Ka8 Ba6 Bb6 Ra5 Rf8 Qf3 Rf7 Rg8 Rg7 Bcb5 Rg4 Bc4 Rh4 Qhg4 Rh2 Qfh3 Rh1 Bab5+ Qa7 Be6 Qb4 Ba4 Ba6 Bc4 Qb8 Bab5 Qd2+
2B1N2k/RB5r/pK6/1n3p2/Rq2q2r/Q1N2nQP/1rq2PrB/brB1N3 w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 hxg4 d4 c5 Bd2 Be6 Bh6 cxd4 Bc1 d3 Qe2 d4 Qd1 Bd5 exd5 Rh6 Nc3 Rh7 Nb1 Rh8 Kd2 g5 c4 f5 b4 Kf7 c5 Kg7 h3 e5 c6 a6 b6 e4 c7 g3 c8B g4 b7 e3+ Ke1 d2+ Ke2 g2 Kd3 g3 Kc4 e2 d6 e1Q Kc5 d3 b5 Rh7 b6 Nh6 Qe2 d1Q Rh2 d2 Nc3 Qc2 Nf3 d1R Qe4 g1R Bg2 Rd4 Qe7+ Kh8 d7 Qee4 Ra4 Ng4 Ne1 Nc6 b8B Nge5 b7 Na7 Bh1 Rb4 Rg2 Bg7 Bc7 Qg8 d8N Rb8 Ne6 Nb5 Kb6 Nf3 Be5 Qe8 Nc7 Qf8 Ne8 Rd4 Qa3 Qb4 Bc7 Rf1 Rg1 g2 Bh2 Rc4 Nb1 Ba1 Nc3 Ra8 b8Q Raa7 Qa2 Rh4 Qb2 Rah7 Qg3 Rd4 Qa3 Rd2 Nd3 Rfd1 Re1 g1R Re3 Ra7 Ne1 Rah7 Rd3 Rg2 Rd7 Re2 Ra7 Red2 Bb2 Rb1 Bc1 Re2 Be3 Nfd4 Qa2 Qd1 Re7 Qd5 Qb8 Rgg4 Ra7 Reb2 Qa3 Qc2 Bc1 Qdc4 Bf3 Rg2 Bfb7 Nf3 Qg3 Q4e4
2N1B1bb/Kq1NBbn1/5NQ1/2p2P1R/b2nN1r1/3qR1n1/pQP3R1/2b2k2 w - - 0 1 legal: proof: g4 e5 h4 f5 d4 exd4 a4 b5 axb5 fxg4 Bg2 a5 Bf3 g5 Bb7 g3 Bg2 g4 Bf1 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bc5 Ra4 Be7 Ra1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 d5+ Kb3 h5 Ka4 c5 b4 h4 f3 h3 b6 g2 Kb5 g3 g6 d3 g7 Kd4 b7 h2 e5 d2 e6 Ke3 e7 Kf2 e8N a4 f4 d4 f5 d3 Na3 Nc6 Ka6 Nd4 b5 Bd7 b8Q Rh4 b6 Qc7 b7 Nf6 g8R Bg7 Qc8 Nh5 b8N Qb7+ Ka5 Bh8 Qc6 Ng7 Nb5 a3 Nbd6 a2 Nf6 Rg4 Nf3 g1N Ng5 g2 Nc8 Nge2 Bb2 g1B Qb1 d1Q Nge4+ Ke1 Qc1 Be8 Nbd7 d2 Qe6 Ng3 Bb5 Bf7 Qe8 Bb3 Qg6 Ba4 Bc6 Ke2 Bc3 Be3 Qb2 Qf1 Re8 Qh3 Rag1 d1B Be1 Bc1 Rg2+ Kf3 Bc3 Be2 Bd2 Bc4 Bg5 Bg8 Bb5 Qh6 Bh4 Qe3 Re6 Qd3 Bg5 Qd5 Kb6 Qc6+ Ka7 Qd5 Rhg1 h1B Rh2 Qc6 Rh5 Ke2 Rg2+ Kf1 Bh6 Ne8 Bf8 Ng7 Be7 Qd5 Ne5 Qb3 Be8 Qbb5 Ned7 Qc6 Rd2 Bf3 Rg2 Qcb5 Ned6 Bd5 Re3 Bdf7 Nde4 Qb7+
1B6/1p1Nn2Q/kr1BpBq1/1qn1K3/1R2b2P/1PR1R3/q1nN4/1B1nbQn1 w - - 0 1 illegal: No proof kernel
3QQ2r/RrR2PQ1/pnB1n3/N2p4/qb1NB3/3q1KB1/P1r1r3/1B1n2rk w - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 h3 exd4 Nc3 g5 Ba3 g3 Nf3 g4 Rc1 g2 Ng1 b6 Ra1 g3 Nb1 Bb7 Bb2 Bf3 Bc1 Bg4 hxg4 Be7 Kd2 Bd6 Ke1 Bf8 c4 Ke7 e4 Ke6 Ke2 Ke5 f4+ Kf6 c6 h5 f5 Ke5 g5 b5 f6 d3+ Kf3 b4 c7 a6 c8B b3 c5 d2 c6 h4 g6 h3 c7 h2 g7 b2 Bb7 Nc6 c8Q Nge7 g8Q Nd5 Bd3 Bb4 Ne2 g1Q Nd4 g2 Qg7 Nb6 Na3 b1R Qa4 Qe8 Qd8 d1N Bc2 Rb2 Bb1 Rc8 Bd2 Rc2 Be1 Qf1+ Bf2 g1R f7+ Kd6 e5+ Kd5 e6 Rb8 e7 d6 Ba8 Rb7 Nc4 Rg2 Rg1 h1R Na5 Qc4 Be1 Rge2 Bg3 Qb5 Rf1 Rg1 Re1 Qd7 e8B Qc4 Qc8 Nd8 Qc7 Ne6 Qd8 Qdc7 Qad7 Q7c6 Q7e7 Qa4 Bc6+ Kc5 Be4 Qcb5 Qee8 d5 Nac6 Kc4 Na5+ Kc3 Qdd7 Kd2 Qdd8 Reh2 Re3 Rhg2 Rc3 Re2 Rc7 Qc4 Bf4+ Ke1 Bg3+ Kf1 Rd7 Rb8 Bc6 Qcb5 Ra7 Rb7 Bf2 Rg5 Bg3 Kg1 Qdd7 Kh1 Qdd8 Rc4 Bbd3 Rg4 Rc1 Rg6 Bb1 Rcc2 Bc7 Rg1 Bg3 Rcd2 Bd7 Rb2 Rc7 Rbc2 Bc6 Qd3+
2R3BQ/pRnNKp2/2n1NB2/kbQ5/n2PBn2/2q3bB/P1Qb1nqr/8 w - - 0 1 legal: proof: e4 c5 h4 d5 g4 dxe4 b4 b5 bxc5 g5 f4 gxf4 h5 Na6 g5 Rb8 Bb2 Rb6 Bc1 Rg6 hxg6 Qc7 Bg2 Qa5 Bf1 Qd8 Kf2 Kd7 c4 Kc6 d4 e5 g7 h5 g6 h4 Ne2 e3+ Kf3 b4 Ke4 h3 Bd2 b3 Rh2 b2 Qc2 f3 Nbc3 b1N Nd5 f2 Bg2 f1Q Nb6 Qc7 Nf4 e2 Ne6 e1N Nd7 Nd3 Bg5 Ne7 g8Q Nf4 Bf6 Bh6 g7 Qf2 Rh1 h2 Rc1 h1N Qh7 Qa5 g8B Nc7 Bh3 Kb7 c6+ Ka6 c5 Qc3 Qg7 Rh7 Qh8 Ka5 Bf5 Ba6 Bg6 Nc8 Kf5 e4 Ke5 e3 Be4 Ne7 Kd6 Nd2 Rcb1 e2 Rb7 e1B Rab1 Bb5 Rc1 Na8 c7 Nc6 c8Q Nc7 Qf8 Qg2 Qc8 Nb1 Qf8 Ne5 c6 Nf2 Ke7 Bg5 Qc8 Rh2 Qf8 Bh4 Qc8 Bg3 Qf8 Ne8 c7 Bd2 c8B Nc7 Qfh6 Qd3 Qg5 Nc3 Qf5 Na4 Qfh5 Nf3 Qhc5 Qc3 Qd3 Nh5 Nb6 Ng5 Ng7 Qb3 Bh3 Ne8 Qc7 Nf4 Ne6 Nf3 Qc6 Ne5 Nd7 Qb2 Rc3 Qb3 Qc2 Qc4 Qd6 Qd3 Rc8 Qc3 Qa3 Nc7 Qc5 Nc6+
5BQ1/Q2nR2P/r1n1qp2/2B4B/RN2nP2/1n2prn1/N1n1B2Q/bkn1K3 w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 hxg4 d4 c5 Bd2 Be6 Bh6 cxd4 Bc1 d3 Qe2 d4 Qd1 Bd5 exd5 Rh6 Nc3 Rh7 Nb1 Rh8 h4 Kd7 f4 Kd6 c4 Kc5 h5 Kb4 c5 a5 d6 e5 b3 g5 b6 d2+ Ke2 e4 h6 d3+ Kf2 g3+ Kg2 g4 d7 a4 b7 a3 c6 a2 c7 Nc6 b8B Ra6 c8B Qe7 d8Q Nf6 Rh3 Bg7 Be2 Qe6 Kf1 Nd7 Na3 Kc3 b4 g2+ Kf2 Be5 b5 f6 b6 Re8 Qf1 d1N+ Ke1 g3 b7 Nf2 Be3 Kb2 h7 Rg8 Bd6 Rg6 Rc1 a1N b8Q+ Nb3 Bec5 Rh6 Rh1 Rh3 Nc2 Ka2 Qdc7 Ba1 Nb4+ Kb2 Rc4 Kb1 Nf3 g1N Ng5 g2 Qca7 Rf3 Bf8 e3 Rh5 Nh1 Qf2 Ng3 Ne4 d2+ Kd1 Nh3 Re5 g1N Qh2 Ng5 Bb7 Qf5 Re8 Ne6 Re7 Ned4 Qc8 Qe6 Nc3+ Kb2 Qca8 Nc2 Nca2 Kb1 Qe8 Nh3 Qg6 Ng5 Qf7 N5e4 Qg8 Rf2 Bh5 Rf3 Bc8 Nf1 Ke2 d1N Bb7 Nb2 Rd4 Ra5 Ba6 Nd3 Kd1 Ndc1 Be2 Nfg3 Rc4 Na3 Ke1 Ra4 Nd5 Ra5 Ra4 Ra6 Ndb4 Nc2+
4nRBq/3qn1kp/1B1P1q1N/QR1RN3/3bp1r1/bB2P1q1/b1RK4/2n3Q1 w - - 0 1 legal: proof: g4 d5 h4 b5 a4 f5 axb5 fxg4 c4 dxc4 Nf3 g5 Ra3 a5 Ra2 g3 Ng1 g4 Ra1 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Qd6 Ra4 Qd5 Ra1 Qd8 f4 Kf7 d4 e5 b4 c5 f5 e4 b6 a4 b7 c3 f6 c4 b5 a3 d5 g2 d6 a2 g6+ Ke6 g7 Kf7 b6 c2 Nh3 g1B Rh2 g3 Na3 g2 Nf2 c3 Ng4 Qd7 Be3 c1Q Nc4 Na6 b8R c2 b7 Nc7 Bb6 Qb2 Kd2 Bd4 e3 Ne7 g8B+ Kg6 f7 g1Q Qe1 Bfg7 f8R Qg3 Nh6 Ne8 Rd1 a1Q Re2 Bgf6 Ne5+ Kg7 Qf2 Bc5 Qg1 Ba3 Bb3 Rg8 Rg2 Qbb1 Bfc4 c1N Rf2 Rh8 Bg8 Qbb2+ Ke1 Qd4 Rd2 Qdb2 Rd5 Qc3+ Kd1 Qcb2 Rc2 Qc3 Ng6 Bd4 Ne5 Qab2 Ra8 Qa1 b8Q Bb7 Rb5 Bd5 Qa7 Qcb2 Kd2 Bc4 Bf7 Rg8 Qa5 Bd5 Ba4 Ba2 Bab3 Kf6 Rc8 Rg4 Rcc5 Kg7 Rd5 Qc3+ Kd1 Qcc8 Bg8 Qb2 Rc6 Qbf2 Rc2 Qf6 Kd2 Qff3 Be6 Nc7 Rf4 Qh8 Rf8 Qf6 Bg8 Ne8
3KNnnR/B1Q2n2/3p2r1/QBRP4/2rnkqQ1/NQ1p1q2/P4Br1/2q1b3 w - - 0 1 illegal: No proof kernel
2qRR2n/b2Bq2r/1p4bk/Nb1NK1b1/1B1P4/pnQ5/P2qRnQ1/1N4R1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 c5 b4 g5 bxc5 a5 Bd3 f5 Bf1 Ra6 Qe2 Rg6 Qf3 fxg4 Qd1 g3 Ke2 g4 Ke1 Rg5 hxg5 Qb6 Na3 Qd6 Nb1 Qd8 Ke2 Kf7 Ke3 Kg7 Kf4 e5+ Ke3 h5 c4 g2 f4 g3 d3 a4 f5 h4 c6 a3 c7 h3 g6 h2 c5 Rh7 c6 Be7 f6+ Kh6 f7 Na6 f8N Bf5 c8Q Nc5 g7 Bg6 c7 Nb3 Ne2 g1N Qc2 g2 Nd4 Nh3 Bd2 Nf2 Nfe6 g1B Bh3 Bg5+ Nf4 Ne7 g8R Qe8 Qa8 Qf8 Nc6 Qc8 Ke2 e3 Kf3 e2 Re8 e1Q Nd5 Qc1 Bb4 Qd2 Bd7 e4+ Kg3 e3 Qc3 e2 Na5 e1Q Kf3 Qb8 c8R Qee5 Rcd8 Qc8 Qc2 Nh3 Qc6 Ba7 d4 b6 Rg1 Nf2 Qc3 Qe6 Re1 h1B+ Kg3 Bg2 Re2 Bf1 Kf3 Bf7 Qb7 Ng6 Qbc6 Nh8 Qa8 Nd3 Qac6 Qd6 Ke4 Nf2+ Kf5 Bh5 Qb7 Qf8+ Ke5 Bg6 Ne7 Nd1 Rg2 Bfd3 Re2 Rg7 Qg2 Nf2 Nd5 Qe1 Nd2 Rh7 Rd1 Bb5 Nb1 Qd2 Rg1 Qe7+
r1k3q1/npN1K1pB/7r/3qB1P1/1q5R/bnNr2R1/1rPNQ1N1/1Q2B2n w - - 0 1 illegal: No proof kernel
2q1k3/3N1npB/4KRbN/4RQb1/N3n1p1/1RRP4/b1q1Q1PB/1rqn3q w - - 0 1 illegal: No proof kernel
3rQR2/2pK1n1N/kqnQnP1q/1rP1B3/1R1p1q2/B3Q2Q/3b2n1/3rN2B w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 h3 g5 Qd2 g3 Qf4 g2 Bd2 g4 Bc1 g3 Qd2 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 a5 Kd3 d5 f4 Kd7 b4 Kc8 e4 Kb7 c4 h5 e5 h4 b6 h3 g5 h2 g6 a4 f5 a3 e6 a2 f6 Qc8 e7 Nd7 e8Q Ra3+ Nc3 Rh5 b5 Ra5 g7 Ra8 Rb1 a1R Ba3 Nh6 g8Q Bd6 Rb4 Nf8 Nf3 g1N Bg2 Be7 Qh8 Rc1 Ne1 Nf3 Ne4 Qg4 Ng5 Rd8 Nh7 Qf4 Rg1 Rf5 Bh1 g2 Qe2 Rb1 Qe3 Ne6 Qd7 Rh5 Qd6 Nf7 Qe8 Bf8 Qed7 Bh6 Qe8 Kb8 b7 Ka7 b6+ Ka6 b8B Rc1 Ba7 N3e5+ Kd2 d3 b7+ Nc6 b8Q Ra1 Kc3 d2 Bd4 Rd1 Be5 d4+ Kb3 Rf5 Ka4 Bg5 Rf1 g1Q Qh8 Qg2 Rg1 Qd5 Rg4 Qc5 Qe8 Bh6 Rg8 Qb6 Rf8 Rg5 Bf3 h1Q Qc8+ Ka7 Qcd7 Qhh4 Bh1 Ka6 Qd5 Rf5 Q7d6 Bg5 Qg2 Qh6 Qgf3 Ra1 Qh3 d1N Qg1 Ne3 c5 Ng2 Qge3 Rd1 Kb3 Rb1+ Kc4 Rb2 Kd5 Rb3 Rc4 Rb5 Rb4 Qf1 Qe2 Bd2 Qee3 Qff4 Qg1 Qh2 Nd3 Rf1 Qge3 Rd1 Ne1 Q2f4 Nf3 Ng7 Ne1 Nf5 Ke6 Rc8 Rb1 Ng7+ Kd7 Ne6 Rb4 Rd8+
2rB1n2/1kb3Q1/3Q4/2rqbN2/pp3K1P/qB2N2N/qPR1r1R1/1N2Bb1q w - - 0 1 legal: proof: f4 b5 g4 h5 c4 hxg4 f5 d5 cxd5 Nc6 f6 Nb4 Bg2 exf6 Bh3 f5 Bf1 f4 a3 Nc6 a4 b4 Bg2 Nd4 Bf1 Nb5 axb5 Qg5 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 e4 c5 h4 Kc7 d4 a5 b6+ Kb7 d6 f5 e5 g5 d7 f3 Kg3 a4 d5 f2 d6 c4 e6 f4+ Kg2 c3 e7 c2 e8N f3+ Kg3 Ne7 Qd3 Ng6 Qc3 Bg7 Nc7 Re8 Qc4 Re2 Rh2 Nf8 Qe6 Be5+ Bf4 c1R Qg8 Rc5 Nh3 Rb8 Bg2 f1Q Qg7 Qh1 Nd5 f2 Bf1 Ra8 Ne3 Qd5 Ra3 Qa2 Rc3 Rb8 Rc2 Ra8 Kg2 g3 Kf3 g2 Bg3 g1B Rg2 g4+ Ke4 Qg5 d8Q+ Bd7 Qdf6 Bh2 Qf4 Rac8 Qff6 Kb8 b7 Bb5 d7 Kc7 b8N Kb7 d8B+ Bc7 Bf4 g3 Qd6 Qh5 Bh6 Qhd5+ Kf4 Qa3 Nc6 Ba6 Ne7 Bc4 Rg1 g2+ Kg4 Bb5 N7f5 Be5 Bf4 Qaa2 Bg3 Ba6 Rh1 g1Q Rh2 Qgh1 Rg2 Rd2 Bc4 f1Q Be1 Qfd3 Kg5 Qda3 Bb3 Bf1 Kg4 Re2 Kg5 Bc3 Kf4 Be5+
1b2n3/Q1B2k2/1P4R1/nnp2b1K/pnPrN1nQ/2q1N1N1/2B5/1bnB2RN w - - 0 1 legal: proof: g4 d5 h4 f5 a4 fxg4 e4 b5 axb5 dxe4 Ke2 a5 Qe1 g5 Qd1 g3 Ke1 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bf5 Qf3 Be6 Qd1 Bc8 Ke2 e5 c4 h5 f4 c5 b4 g2 d4 h4 b6 e3 g6 h3 g7 g3 Kf3 h2 d5 a4 b5 e2 b7 Nh6 g8B Bh3 b6 Be7 f5 Nf7 d6 Rh7 f6 Bf5 Nh3 Nc6 b8N Na5 Na6 Rh4 Nd2 Rd4 Rg1 h1B Nf2 e4+ Kf4 e1N d7+ Kf8 Be2 e3+ Nde4 Nc2 Bh7 Na3 Nc7 Nb5 Nd5 Nfd6 Kg5 Kf7 Kh5 Qh8 d8Q Ne8 Bf3 e2 Bf4 e1N Bc7 Nc2 Ne3 Bf8 Qb8 Qg7 Qe1 Bd6 Qa7 Nb4 Bd1 Be5 Nc3 Bb1 Bhc2 Bd6 Nce4 Be5 Rf1 g1N Ra3 g2 Ng3 Nf3 Rg1 Nh2 Ra2 Kf8 f7 Ng4 Ra1 Ke7 f8N Kf7 Nd7 Bf4 Nf6 Be5 Rf1 g1N N6e4 Ne2 Rg1 Nc1 Ra3 Bg2 Nfh1 Bh3 Rd3 Bd6 Rd2 Qf6 Rdg2 Qf3 Nef5 Qc3 Ne3 Nh2 Qf2+ Bf5 Qf4 Be5 Qh4 Ng4 Ne2 Nf2 Rg6 Ng4 N2g3 Nb7 Bd8 Bb8 Bc7 Na5
k2rRQ2/2BQ1KpB/1PRbBNrq/1r1np1n1/2n2n2/1N2P3/3B1n2/n5R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d3 Bb7 f5 e5 d4 cxd4 Ra5 Bd5 Ra1 Be6 fxe6 Qf6 Bg5 Qe7 Bc1 Qd8 Kf2 a5 Kg3 d5 b4 f5 c4 a4 h4 d3 h5 a3 b6 d4 b7 d2 e7 Kd7 Kh4 Kc6 Kg5 g3 Kg6 d3 e8Q+ Nd7 b8B Kb7 h6 f4 e3 a2 c5 g2 b5 f3 b6 f2 h7 Qf6+ Kh5 Bd6 Nc3 Ne7 Nge2 g1R Nd5 Nf8 Nd4 Rg6 Nb3 Ne6 Qf8 Ng5 Rg1 Ra5 c6+ Ka8 c7 Rb5 c8B Rg8 Bfh3 f1N h8R Qf4 Nf6 Nd5 Rb1 a1N Bcf5 Qh2 Qg4 d1N Bd2 Nb2 Rc1 Nc4 Be4 Qf4 Qd7 Qh2 Rc2 Qf4 Be6 Qh2+ Kg4 Qh6 Rc1 Ng3 Bc7+ Kb7 Rc3 Nh5 Kf5 Nf4 Rc2 Na5 Rc6 Nc4 Qfe7 Ra8 Re8 Rd8 Qf8 Ka8 Bc1 d2 Bb2 d1N Bc3 Nf2 Bc2 Ng4 Bd2 Nf2 Bf7 N4h3 Bb1 Nf3 Ke6 Rg3 Bh7 Rg4 Bfg6 Rg5 Bf5 Nhf4+ Kf7 Rg6 Be6 Ng5+
3rB3/R3r3/2B1kq1b/nb1prp1B/N4P2/b2P2N1/rQb1bN2/R2Q1NK1 w - - 0 2 legal: proof: h4 e5 a4 b5 b4 g5 c4 gxh4 d3 e4 Kd2 e3+ Kc2 Nh6 a5 Qf6 a6 Ng8 Bd2 exd2 cxb5 Bh6 b6 Nc6 b5 Bf8 Ra5 Nd8 Ra1 Nb7 axb7 Qd8 b8Q Ke7 e4 d5 g4 a5 f4 f5 b7 c5 b6 h5 g5 a4 g6 h3 e5 c4 e6 h4 g7 a3 Be2 c3 Bh5 a2 Ne2 h2 Ng3 h3 Rg1 Kf6 e7 h1R e8B h2 Bc6 Ne7 g8B Ra7 Bgf7 Bh6 Bfe8 Bd7 Re1 Rg8 Re4 Re1 Ra4 h1B Ra5 Bf3 Ra4 Ra8 Ra7 Kg7 Qe5+ Kf8 b8N Be2 b7 Rg7 Na6 Rf7 Bb5 Nc6 b8N Qf6 Nc5 Re7 Na4 Na5 Na6 Rd8 N6c5 Bc6 Nce4 Kg8 Ba6 Bb5 Nf2 Kf8 Qb8 Re5 Bb7 Ke7 Bbc6+ Ke6 Na3 Re4 Nc4 Re5 Rb1 a1R Ne3 Ra3 Nef1 Ra1 Rc1 Ra3 Ra1 Ra2+ Kb1 Ra3 Qb6 c2+ Kb2 c1B+ Kc2 Ra2+ Kc3 Ba3 Kd4 Ba6 Qb2 Bc4 Nfe4 Bb5 Ke3 Qh8 Kf2 Qf6 Qdc2 d1B Kg1 Rd7 Qd2 Rd8 Nf2 Bc2 Qbc3 Rb1 Qd1 Rb3 Qb2 Rc3 Bb7 Rc7 Bbc6 Re7
1R3q2/2Bbb1r1/1rB4Q/NRbpbRNP/3PpnB1/r3Q3/1B4kb/2K2r2 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 hxg4 b3 b5 Nf3 b4 Ng1 Nc6 Na3 Na7 Nb1 Nb5 cxb5 a4 Qf3 axb3 Qe2 Ra6 Qd1 Ra8 a4 Kf7 f4 Kf6 h4 g5 h5 c5 a5 d5 a6 e5 d3 b2 Kd2 c4 b6 b3 a7 e4 b7 c3+ Ke1 c2 Kd2 g3 b8B g2 Qe2 g4 Nf3 g1B Bc7 g3 Na3 b1R Nc4 b2 Ra5 g2 Qe3 Rh7 Ng5 Bd7 Rb5 Be7 Be2 Qf8 Na5 Rg7 Bg4 Bh2 Rf1 g1B Rf3 Ra1 d4 b1R Bb2 c1B+ Kc2 Bf2 Kd1 Bfg3 Rf1 Rb8 a8B Ra3 Bc6 Rb6 Rf3 Bd2+ Kc2 Rf1 Rf2 Be1 Kc1 Bc5 Rf3 Ne7 Rf2 Ng6 Rf3 Ke7 f6+ Ke8 f7+ Ke7 f5 Kf6 Rf2 Be5 Rf3 Nf4 Rf2 Qe8 f8R+ Qf7 Rb8 Qf8 Nh7+ Kf7 f6 Beb4+ Bd1 Ke6 f7 Kf5 Ng5 Be7 Rf3 Bbc5 Rf2 Qg8 f8Q+ Qf7 Rf3 Kg4 Qh8 Qf8 Qh6 Nh3 Rf6+ Kh4 Rf5 Nf4 Qd2 Kg3 Qe3+ Rf3 Be2 Kg2 Bd1 Rf2 Bg4 Rf1+
2b1b3/4qB2/Bb1N2Q1/1pb3P1/1P1NnRn1/pQq2r2/2bbRQK1/k1BQ4 w - - 0 1 legal: proof: e4 c5 h4 g5 hxg5 b5 a4 f5 d4 fxe4 a5 cxd4 Bf4 a6 Be3 Ra7 Bf4 Rb7 Bc1 Rb6 axb6 a5 f4 Kf7 Kf2 Ke6 g4 Kd5 b4 e5 f5 h5 g6 a4 g7 h4 f6 a3 g5 h3 f7 d3 c4+ Kd4 c5 d5 c6 e3+ Kg3 d2 c7 e2 b7 e1B+ Kf3 h2 Qb3 d1Q+ Kg2 e4 Qg3 e3 Bd2 e2 Qh3 Nd7 b8Q Bf2 Be1 Qe7 Qh5 Qc1 Qg6 Ndf6 Nc3 Ne4 Bd2 e1B Ra2 Nh6 g8Q Ng4 Bc4 Rh3 Bf4 Rd3 Re2 Rf3 Ba2 Qb2 Bc1 Bd2 Qa7+ Kd3 Qa4 Bb6 Qd1 d4 Be6 Qf6 Bb3 Bfc5 f8Q Qe7 Qf4 Qa1 Bf7 Qb2 Qg3 Qb3 Qf2 Qc4 Qde1 Kc2 Qef1 d3 Q1e1 Nef6 Ne4 Kb1 Nd6 Ne4 Qef1 Qc3 Qd1 Bb7 c8B Ka1 Bb3 Bc6 Ba6 Be8 Bf7 Ng3 Nh3 Ne4 Rf1 h1B+ Kg1 Qg7 Nf4 Qc3 Ne6 Bg2 Nd4 Bh3 N4f5 Ne5 Nd4 Bc8 Kg2 Ng4 Qb3 Bf4 Qd1 d2 Qe6 Be3 Qeb3 Bf4 Qg6 Be3 Qde1 d1B Qd2 Bc2 Qd1 Bc7 Rh1 B7b6 Rh4 Nh2 Rg4 Bd2 Rf4 Ng4
1n1rr3/pQ1BknR1/Pb1r1rq1/7N/p2PN1nr/N1K4n/1N6/Q3B1QR w - - 0 1 illegal: No proof kernel
N5Q1/Nqb1p1b1/1p2bB1N/3qR1Q1/2K1P1b1/4b1N1/B2RPQrk/n1b1r3 w - - 0 1 illegal: No possible last move, all moves rejected
2B2n1b/b1k1bQ2/pR1q2QN/r3PB1N/nnb1p2R/1B2n1n1/PB5N/6K1 w - - 0 1 legal: proof: f4 d5 e4 dxe4 b4 h5 g4 c5 bxc5 hxg4 c6 e5 Kf2 b5 Na3 e3+ Ke1 e4 Nb1 a6 Bb2 Ra7 Ba3 Re7 Bc1 Re5 fxe5 Bb4 Nf3 Bc5 Ng1 Bf8 d4 f5 c4 g5 h4 e2 Kf2 e1B+ Kg2 f4 c5 f3+ Kh2 f2 h5 g3+ Kg2 g4 d5 b4 c7 Kd7 h6 b3 d6 b2 h7 Bb4 Qb3 Nf6 Nc3 b1N Rh3 Nd5 Nf3 Bg7 Ne2 Nbc3 Nf4 Na4 Bc4 f1N Rh4 Nfe3+ Kg1 g2 Bb2 Qe7 Rf1 Rd8 Nh5 Bh8 Rb1 Ba3 Qb7 Nb4 Bb3 Qf8 Qa7 Kc6 d7 Qd6 Nh2 Bb7 c8B Kc7 Kf2 g1N c6 Ne2 Bd1 Nac3 Bb3 Ng3 Kg1 Na4 Ng7 Re8 d8N Nd7 Nh5 Nf8 Nf7 Rd8 Bf5 Rc8 Nh6 Rb8 Qd4 Ba8 Qc4 Rb5 Qg8 Ra5 Qg6 Bb7 Bd4 Bc8 Bb2 Be6 Qf7+ Kb8 Qg6 Bc4 c7+ Kb7 c8B+ Kc7 Nf7 Ngf1 Nh6 g3 Rc1 g2 Rb1 Bf6 h8Q Ng3 Qhg8 Bh8 Kf2 Nef1 Q8e6 g1B+ Kg2 Ba7 Qgf7+ Qd7 Qeg6 Ne3+ Kf2 Nbc2 Kg1 Be7 Rd1 Qe6 Rd6 Nb4 Rb6 Qd6
2bQ4/nb2pp1Q/bRP1rn2/1Nb1BR2/2Kb4/8/1kN1Pq1Q/b2BRq1Q w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 f4 g5 Qd3 a5 Qe3 g3 Qd2 g4 Qd3 Rh5 Qd1 Rg5 fxg5 Ra6 Bf4 Rh6 Bc1 Rh8 Kd2 d5 Kd3 Kd7 b4 Ke6 c4 Ke5 h4 a4 b6 a3 h5 a2 g6 g2 c5 g3 h6 Qd6 g7 Qf6 h7 Qf2 b5 Nc6 b7 Nf6 b8R Na7 g8Q Bg7 Nc3 Ba6 Rb1 a1B Qd8 Rg8 h8Q Bc8 Nh3 g1Q b6 g2 Qh7 Bh8 b7 Rg6 Rb5 Bg7 Kc2 d3+ Kb3 Kd4 Nf4 d2 Bb2 Rh6 Qc1 d1B+ Kb4 Bc2 c6 B2f5 Nd3 Bh8 Ne1 Bd3 Rb6 Ba6 Rh5 Qh1 Rg5 g1B Bh3 Qhg2 Bg4 Qgf1 Be6 Rg6 Ra8 Bg7 b8Q Bab7 Qbh2 Bh8 Ka5 Kc4 Bf5 d4 Nc2 d3 Nb5 Kb3 Be5 d2 Qe1 Ka2 Kb4 d1B Kc4 Bd4 Bd3 Kb2 Rf5 Bg7 Nca3 Ba4 Bc2 Bh8 Bd1 Bb3+ Kd3 Bbe6 Nc2 Ba6 Rab8 Bcb7 Ra8 Bec8 Kc4 Qe3 Qeh4 Qef2 Qe4 Ng8 Qeh1 Re6 Bc7 Bc5 Bg3 Bhd4 Be5 Nf6 Rb8 Ba8 R8b7 Bc3 Rd7 Ba8b7 Rd3 B3d4 Ra3 Bc3 Ra1 Qh4+ Kd3 Bgd4 Kc4 Qhf4 Nb4 Q4f2 Ba4 Ng8 Re1 Nf6 Bd1 Kc1 Nc2 Ba1 Rf4 Kb1 Rf5 Kb2
2N1NB2/b1b1bQRK/B1Q1rB2/rbp2B2/n4k1P/Rbn1R1p1/b1b3P1/8 w - - 0 1 illegal: No proof kernel
1N2Q1Rr/N1k2r1b/5r1Q/3Bn1p1/R1rp3r/b5PB/brBPK3/1R1n2B1 w - - 0 2 legal: proof: b4 e5 a3 c5 a4 b5 axb5 cxb4 h4 g5 f4 Qf6 h5 Qg6 hxg6 exf4 e4 Kd8 c4 h5 c5 a5 c6 d5 g3 f5 e5 d4 e6 a4 e7+ Kc7 e8B a3 g7 b3 Qe2 f3 Kd1 b2 Qe3 f4 Bf7 a2 Na3 b1B Bd3 h4 Qe6 f2 Qh6 f1R+ Ke2 h3 Bd5 h2 Bc2 Nd7 Nf3 Ne7 g8R Rb8 Ne5 Nf5 Rg1 h1R b6+ Kd8 b7 Ne3 Nb5 Nd1 Bb2 Rh4 Na7 Kc7 Ba3 Rf3 Rh1 Rc3 Be7 Rc4 Bf6 Ba3 Rf1 Nc5 Nd7 Nd3 Re1 Ne5 Rg1 Ra8 Nb8 Bf5 Be7 Bh7 Bd6+ Kb6 c7 f3+ Kf1 f2 Ke2 f1R c8B Rf6 Bh3 Nf7 Bf4 Ne5 Be3 Kc7 Rh1 Rf7 Bg1 Rf6 Nbc6 Raf8 Nb8 R8f7 Bb3 Bbf5 Bc2 Bd7 Rb1 a1R Rb4 Ra2 Ra4 Ng6 Nbc6 Be6 b8Q+ Kd7 Qb5 Rb2 Nb8+ Kc7 Qe8 Ne5 Bh2 Ne3 Rb1 Nd1 Bg1 Rcb4 Ba8 Ba2 Bd5 Rc4
2N2N1B/K2RnQ1n/p4rq1/q2R1r1p/2q1Q1rP/P2Brq2/1k3BQ1/b6Q w - - 0 2 legal: proof: g4 c5 b4 f5 bxc5 f4 e4 d5 f3 Bf5 gxf5 dxe4 Ke2 exf3+ Kf2 Kf7 Ke1 Ke8 Kf2 Kd7 h4 Kc6 d4 Kd5 c4+ Ke4 d5 h5 f6 g5 f7 b5 c6 e5 d6 g4 a3 a6 c5 b4 d7 b3 c7 b2 c8Q Ra7 c6 Qb6+ Be3 Rh6 d8B Rf6 c7 Bg7 f8Q Nc6 Ne2 Qa5 Nd2+ Kd3 Qe6 b1Q c8Q e4 Qff7 Nce7 Qb7 Rf5 Rh3 Nf6 Nd4+ Kc3 Nc4 Nh7 Nb6 Kb2 Bd3 Ra8 Bc7 Rf8 Be5 Bh8 Qbc6 Rf6 Nc8 g3+ Kf1 g2+ Kf2 Rf5 Qh1 g1R Rg3 Bg7 Rg5 Rg4 Qeg6 Bh8 Bg7 Rf6 Rd5 Rf5 Ne6+ Rf6 Qf5 Qc2+ Kf1 f2 Rd1 Qc4 Ba7 e3 Ke2 f1R Bb6 Rf3 Qe4 Rh3 Rd7 Qg5 Qeg2 Qg6 Qce4 Rf3 Ba7 Re8 Nf8 Rf2+ Ke1 e2 Kd2 f3 Ke3 Rf1 Rd5 f2 Bc5 Qc2 Kd4 e1Q Bb6 Qce2 Kc5 Qf3 Ba7 Qd2 Nd6 Qe1 Kb6 Qa5+ Kb7 Rc8 Bb6 Rc3 Ka7 Rf5 Nc8 Rf6 Bc4 Re3 Bc5 Rg1 Be2 f1Q Rd7 Rf4 R1d5 Rf5 Bd3+ Q1e2 Qf1 Rg4 Qfg2 Qc2 Bb6 Re2 Bf2 Qc4 Bh6 Re3 Bf4 Rd6 Bh6 Be5 Bg7 Rdf6 Bh8 Ka2 Qgg1 Ba1 Qgg2 Kb2
6qn/r2r2NB/4NP1R/qB1p3b/1RQPqn1B/1K1pn2k/5Q2/Q1nB2q1 w - - 0 1 illegal: No proof kernel
1BQ1rnQ1/2PNb3/2q3bq/1RpQb3/1qPnN2Q/2b1R1q1/K1pR4/2kB4 w - - 0 1 illegal: No proof kernel
Nqr1Bb2/NQ3p2/1r1RB3/5P1q/RPq1R2q/2r1B2k/1pr2n2/BKn3Q1 w - - 0 1 legal: proof: g4 a5 b4 b5 bxa5 d5 a4 h5 e4 dxe4 d3 hxg4 Ra3 b4 Bb2 b3 Ba1 b2 Rc3 Be6 Na3 Bb3 cxb3 Qc8 Nf3 Qd7 Ng1 Qd8 Kd2 Kd7 Kc2 Ke6 f4 Kf5 h4 g5 b4 e5 d4 c5 a6 c4 a7 e3 d5 e2 h5 e1R h6 g3 h7 g4 a5 e4 a6 e3 d6 g2 d7 g3 Nf3 Kg4 f5 g1Q Rh6 g2 Nd4+ e2 Re6 Nh6 Qb1 Qh1 Nc6 g1Q Nb5 Qd4 Ra3 c3 Nc7 Qh5 Ra4 Qc4 Re4+ Kg3 Qd1 Ng4 Kb1 Nf2 Bg2 Rg8 h8B Rg6 Bd4 Rg1 Bf3 e1Q Be3 Kh3 Bh1 Qc8 d8R R1g2 Rd6 Nd7 Qc1 Rb8 a8Q Nc5 a7 Ncd3 Qb7 Qe8 a8B Rc8 Qd1 Nc1 Na7 Qd8 Qd4 Qdh4 Qd1 Qg1 Qf1 Qh2 Qg1 R2g3 Bf3 Rf6 Bd1 Rf3 Bb3 Qe5 Rd7 Rb6 Rd6 Rg3 Qd5 Rg2 Bc6 Qeg3 Na8 Rh2 Rh6 Qb8 Rd6 Rg2 Be8 Rg3 Bh6 Re3 Bf4 Re2 Bg5 Rc2 Be3 Qa6 Bc5 Ne2 Qg6 Rd2 Be3 c2+ Ka2 c1R Qg1 R1c3 Kb1 Rdc2 Qb7 Nc1 Be6 Qc4
1kq2Q2/q1RK2nn/3R1RQq/2RN2np/3pBb1n/1b1N4/1q3P1P/1r4BN w - - 0 1 illegal: Other
b2R1q2/qpb3R1/1n5R/2N1N2q/1bP2Q1Q/1P1r1R1K/k3prQ1/bq1B2B1 w - - 0 1 illegal: Other
1rn1rn2/b4NRp/1n1QN2N/Br2R3/Q7/n3K1pP/1r2r1P1/RNbB2k1 w - - 1 2 legal: proof: d4 c5 e4 cxd4 b4 d5 b5 d3 b6 axb6 Be3 b5 Bc1 b4 f3 e5 Bd2 d4 Be3 Qd5 Bc1 Bf5 exd5 e4 Nh3 e3 Ng1 Be4 fxe4 Bd6 Nc3 Bc5 Nb1 Bf8 c4 Ke7 a4 Kd6 h3 Kc5 d6 b5 d7 f5 d8N g5 a5 g4 a6 b3 a7 e2 Kf2 b2 e5 b4 e6 f4 e7 g3+ Kf3 e1B e8Q d2 Nf7 b3 Ra2 d3 Nd6 Kd4 c5 Ne7 c6 Bh6 c7 Nd7 c8R Bf2 Qg6 Nf8 Nc3 b1N Nce4 b2 Ne8 Na3 N8d6 b1R Nf7 Rb2 Be2 Rab8 Rc7 Nc8 a8N R2b5 Qc2 d1R Ra1 d2 Nc3 Rg8 Bb2 Rb1 Bd1 Rh8 Bc1 R1b2 Nb1 Bg5 Nh6 Rg8 Be2 d1R Rg7 Rd2 Nc7 Rh8 Bd1 Be3 Kg4 f3 Qgc6 f2 Kf3 f1N Qa4+ Kd3 Ne6 Ba7 Qc5 Ne3 Qc7 Rbc2 Qd6+ Nd5 Bb2 Bf4 Bc3 Rcb2 Ba5 Rg8 Ne2 Rh8 N2d4 Ndb6 Nd8 Rg8 Ndf7 Rh8 Kg4 Ke3 Re1+ Kf2 Re5 Kg1 Kf3 Rf2+ Ke4 Bc1 Ne6 Rfd2 Nc7 Nfd7 Kf4 Re8 Ne6 Nf8 Ke3 Re2+
4Rn2/BR1p1N1p/Bbr2b1R/1n1P1Q2/1nQ2b2/2r2bP1/n6R/kNb3NK w - - 0 1 legal: proof: b4 f5 c4 g5 e4 fxe4 a4 b5 axb5 c6 h4 gxh4 c5 Bg7 b6 Ba6 b5 Bc8 b7 Qb6 cxb6 Bf8 f4 Kf7 Kf2 Ke6 d4 Kd5 f5 a5 f6 e5 f7 e3+ Kf3 a4 g3 h3 Rh2 a3 Rf2 a2 Ba3 h2 Kg2 h1N Qg4 c5 Bd3 e4 Qe2 c4 Qd1 e2 Nh3 e1N+ Kh2 e3 Rf6 e2 Bd6 c3 Rh6 c2 Nd2 Ra6 Nf2 Nc6 b8R Nge7 b7 Ng6 b6 Nf3+ Kg2 e1B Rh3 Bh6 f8Q Bf4 Bc5 Rg8 Rc1 a1B Qe2 Nb4 Rh6 Na2 Nh3 Nf2 Nb1 Ba5 Rh1 c1B Rh2 B1c3 Bb5 Nd3 Ng1 Ndb4 Kh1 Rh8 Ra8 Rg8 b8N Bb7 Qf6 Rc8 Nc6 Nf8 Nd8 Bc6 b7 Bac7 b8R Ra3 Ba7 Bb6 Qd2 B3b2 Ba4 Kc4 Bb5+ Kb3 Nf7 Be4 d5 Rc6 Qg2 Nd4 Rb7 Bf3 Ba6 Nb5 Qf5 Bg7 Re8 Bf6 Ne2 Kb2 Ng1+ Be2 Qf2 Rac3 Qc5 Ka1 Qc4 Bf3+
1nb4B/Kpb1bQ2/Q3NrnQ/2Q5/R1pN4/R1nPNB2/2P1r1br/1k1r4 w - - 0 1 legal: proof: e4 g5 b4 a5 h4 axb4 hxg5 d5 f4 dxe4 g4 Qd7 g6 Kd8 f5 Bg7 g5 Bf8 g7 Qc6 Bc4 Ke8 Bf1 Qg6 fxg6 Bh3 Qe2 Bf5 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 f5 a4 c5+ Kc4 Ke5 Kb5 Kd4 Kb6 h5 a5 e5 a6 b3 d3 c4 a7 f4 Qe2 b2 Ra5 f3 Qf2+ e3 Ra4 e4 Nc3 b1N Nd5 h4 Bg2 h3 Bb2+ Nc3 Ba1 Ne7 g8Q h2 g7 Ng6 Qh7 Bd6 g8Q Be7 Qe6 Rf8 Qh6 Rf6 Qfh4 e2 Q4h5 e1B Ne3 f2 Bf3 f1R Bb2 Ne5 g6 Bg3 g7 Ng6 g8Q Rd1 Qf7 Bgd6 Qa5 Bf4 Qa6 Bg3 Qc6 Bf4 Ng2 e3 Ba1 e2 Ne3 e1R Ne2+ Ke5 Rf1 h1B Nd4 Re2 Rg1 Bh2 Rg5+ Kf4 Bb2 Bg2 Rga5+ Kg3 Ra3 Kf2 R5a4 Ke1 Ba1 Bhd6 Qc5 Kd2 Bb2 Nc6 Ba1 Kc1 Bb2+ Kb1 Ba1 Rb8 a8N Bg3 Nc7 Ra8 Bb2 Nb8+ Nce6 Bgd6 Qab5 Ra5 Qa6 Bc7+ Ka7 Ne4 Qb6 Rh5 Qc5 Rh2 Nb5 Rf4 Bh8 Rf6 Nbd4 Nc3
NBnn4/R1q1nn2/2r2nQR/N5p1/B2q1pQK/1r6/N1Nn1PP1/R1n4k w - - 0 1 illegal: No possible last move
nNq1n2R/r1pn2R1/rnPBp1rK/4Rq2/1r1QP3/1q1B2k1/3N4/Q2BR3 w - - 0 1 legal: proof: d4 f5 b4 a5 g4 fxg4 d5 axb4 d6 e6 Ba3 Be7 Bb2 Ra6 Bc1 Ra8 dxe7 g5 h3 b6 Bb2 g3 Na3 g4 Qd5 g2 Qd3 g3 Bc1 Bb7 Qd1 Bf3 Nb1 Bg4 hxg4 Kf7 Kd2 Kg6 Ke3 Kg5 e8B d5 c4 h5 a4 d4+ Kd2 Kf4 e4 h4 a5 b3 a6 b5 g5 d3 c5 h3 g6 b4 a7 h2 f3 b2 g7 b3 c6 Nf6 g8R Nbd7 Ra2 Qc8 Rg7 Nb6 Bh5 Ne8 Ra5 Rh6 Re5 Rg6 Na3 b1R Nc4 Ra1 Ba3 b2 Bd6 b1Q Qa4 Rb8 a8Q Qb3 Q8a7 Na8 Nb6 Ra3 Qd4 Ra6 Nd7 Rb5 Qa1 Rb4 Q7d4 Ra7 Nb8 Ra6 Ke1 d2+ Ke2 d1N Kd2 Nc3 Bd3 Nd5 Bg4 Qd7 Bh5 Qf7 Ke2 Qf5 Kd2 Kg5 f4+ Kh4 Bd1 Ndb6 Nf3+ Kg4 Ke3 g1N Nd2+ Nf3 Re1 h1R Qdb2 g2 Qd4 Qf6 f5 Kg3 Nd7 Qd8 f6 Qc8 f7 Rh3 f8R g1Q+ Ke2 Ra7 Rh8 Qf1+ Ke3 Rh2 Nb8 Rg2 Nb1 Rga2 Nd2 Qh3 Rgh7 R2a6 Rg7 Kg2 Kf4 Qh7 Ra5 Ne5 Rb5 Ned7 Rd5 Kh2 Re5 Rh6 Kg5 Kg3 Rg6 Qf7 Rg7 Rg6+ Kh5 Rg4+ Kh6 Qf5 Qc4 Rg5 Qcd4 Rg6+
1Bnn1R2/2r4k/QQ6/4KN1N/p3q3/P1Rp1P2/2p1Nb1B/rBbn1bBr w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 c4 bxc4 d3 cxd3 gxh5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 Kf7 Kc3 a5 Kd4 g5 h4 Kg7 b4 c5+ Ke5 d5 b5 e6 h6+ Kh7 f6 c4 a3 d4 b6 c3 h5 d2 f7 a4 b7 g4 f3 g3 Qb3 d1R Nh3 g2 Bf4 g1B Bh2 Ra6 Qb6 Qe8 Nf4 Ne7 Bc4 d3 Ba2 Be3 Rg1 Rf1 Rg8 Ra7 Bg1 Bf2 Bh2 Na6 b8B Nb4 Qa6 Rc7 Bg1 Ned5 Qb6 Be7 f8Q Bg5 Qfd6 Ne7 Rf8 c2 Nc3 Bd7 Nce2 Nc8 Rb1 Qe7 Rb3 Ra1 Rc3 Nc6+ Ke4 e5 Bb1 Qe8 Qa6 Nd8 Qdb6 Qg6+ Kd5 e4 Ke5 e3 Bh2 Bh3 Bg1 Rg8 Bh2 Kh8 h7 Bf1 Bg1 Kg7 h8B+ Kh7 h6 Qc6 Bf6 Rh8 Nh5 Qc4 Be7 Qb4 Bd6 Qh4 Nd4 e2 Nf5 e1N Qc5 Rc6 Qcb6 Ng2 Bdc7 Bc1 Bd6 Kg6 h7 Ne3 Bdc7 Nd1 Bd6 Rg8 h8N+ Kh7 Ng6 Rc7 Ngf4 Rg2 Ne2 Rh2 Kd5 Rh1 Bdh2 Qb4 Ke5 Qe4+
1Q1n4/nB4r1/r4n1P/1P1N1qr1/2b1kBp1/1Np1p3/KQbR2NQ/R5bN w - - 0 1 illegal: No proof kernel
1r3knR/3bNN2/2r1qpR1/1n1Q4/1bpQ2rp/1B1PQb2/KPn4B/1Q1R4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 a5 e4 c5 e5 h5 b6 h3 e6 f6 e7 a4 d6 f3 b7 h2 d7+ Kf7 e8Q+ Kg7 g5 h4 g6 a3 Qe3 a2 Bc4 Bd6 d3 f2+ Kd2 f1B Kc3 Nh6 Kb3 Ra7 Nh3 Bg2 Ng5 Rg8 Nf7 Nc6 b8R Qe7 d8Q Bd7 Rg1 h1R Nc3 Rc7 Nd5 Qe6 Ne7 Bf3 Rb1 a1N+ Ka2 Re8 Bb3 c4 Qf1 Ba3 Bd2 Rf8 Rd1 Na7 Be1 Nb5 Bg3 Re8 Bh2 Rc6 Qdb6 Kf8 Qbd4 Ng8 Rg3 Rd8 g7+ Ke8 Rg1 Nc2 Rg6 Rg1 Ra8 Rg4 Qh1 Rb8 Qhg1 Bc8 Qge1 Nh6 Qf1 Bd6 g8Q+ Kd7 Qh8 Rbb6 Rd2 Rb7 Qb1 Rbb6 Ng8 Ke8 Rd1 Bb4 Ne7+ Ng8 Bb8 Bd7 Qh5 Nh6 Qhd5 Rb7 Nc8 Rbb6 Bh2 Rb7 Ncd6+ Ke7 Rh8 Ng8 Nf5+ Kf8 Ne7 Rb8
2q5/4N1r1/Q2rPk1n/2BQp1b1/r1R1bn1K/PR1N1R1R/B1bpp2n/6N1 w - - 0 1 illegal: No possible last move
R1r1Q3/N1B5/1KP1N1nk/1qNR4/b4N1b/p3RbPr/p1Q4p/rB2n2n w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 cxd4 Ke2 Kf7 Kd3 Kg7 Kc4 d5+ Kc5 a5 c4 h5 f4 d3 b4 d4 g3 a3 b5 a2 g6 a4 f6+ Kh6 f5+ d2 g7 a3 f7 h4 b6 h3 b7 h2 f6 d3 Nh3 Bf5 Nc3 Be4 Nf4 Rh7 Qc2 d1R Nb5 d2 Na7 Qd5+ Kb6 e5 c5 Nc6 b8N Bf3 Nd7 e4 Bd3 e3 Re1 Be7 f8N e2 f7 Rc8 N8e6 Nb4 f8Q Bh4 c6 Ne7 Ndc5 Ng6 Qe8 Qe5 Be4 Nd3 g8R Nf2 Rb1 Qf5 Rb5 Nh1 Bb2 Ra1 Be5 d1B Bc7 Qh5 Ra5 Nh8 Rg5 Ng6 Rd5 Qg5 Qc4 Qf5 Bb1 Ba4 Qc2 Rh8 Nb5 Rh7 Ra8 Qh5 Na7 Rh8 Red1 e1N R1d3 Qf5 Re3 Qd3 Kb7 Qb5+ Bb6 Kh7 Qd8 Bg5 Qe7+ Kg8 Qd7 Rh3 Qd8+ Kh7 Qe8 Qf1 Bd8 Kh6 Kb6 Bh4 Bc7 Qb5+
1b1N1b1R/kn1r1rBB/2ppK3/p4B1r/2R1R3/2QP3n/NP6/1bqRn2Q w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 Na6 h4 gxh4 a3 Nb4 Ke2 Nc2 Nh3 Nxa3 Ng1 Nc2 Kf3 a5 Ke4 e5 Kd5 h5 g4 e4 f4 d6 f6 Kd7 f5 h3 g5 h4 b6 h2 d3 e3 f7 h3 b7 e2 b8Q e1B g6 Qe8 g7 Bf2 f6 Ra7 Ne2 Nh6 g8B Qe3 Qb3 Rh7 Ra4 Ne1 Qc3 Ba6 Nf4 Kc8 Be2 Kb7 Re4 c6+ Ke6 Qc5 Rf1 h1N Bg4 h2 Bf5 Rg7 Bgh7 Bc4+ Kd7 Bd4 Ne6 Ba2 Bf4 Qc4 Be5 Nf2 Qf3 Bc5 Qh1 Nh3 Rff4 Bb6 Bd4 Bc7 Nd8+ Kb8 Be5 Qc5 Rc4 Rb7 Rfe4 Ka7 Ke6 Bb8 Bd4 Rd7 Be5 Be7 f8R Nf7 Rh8 Bf8 Bd4 Nh6 Be5 Qe3 f7 Qc1 Na3 Bb1 Nc2 Rb7 Nb4 Rd7 Qf3 h1R Na2 Rg4 Bg7 Rf4 Bfg6 Rf5 Qg2 Rh5 Bf5 Rf1 Qf3 Ng4 Qh1 Nf6 Rh4 Ne4 Rf4 Be7 f8R Rf3 Re8 Bf8 Rg4 Rf1 Rg2 Rf4 Rd2 Rf2 Rd1 Nc5+ Kf6 Nb7 Ree4 Rf4 Ke6 Rf3 Bg4 Rff7 Bgf5 Qf4 Bhg6 Qg5 Bh7 Qc1
R6Q/1nQb1KB1/PbR1r3/R5bp/R1B3n1/np1P4/pNQ1r1qr/1N3k2 w - - 0 1 illegal: No proof kernel
4bRQ1/3n1Q2/p2P2N1/K1RB3p/2N2R1B/1nk2r1R/Pnb1q1Bp/1rrb4 w - - 0 1 legal: proof: f4 c5 h4 g5 e4 gxh4 b4 e5 bxc5 d5 Be2 Bg7 Bf1 dxe4 Bc4 e3 Ba6 e4 Bf1 Be5 fxe5 Qd7 Nf3 Qd4 Ng1 Qd8 c4 Kd7 g4 Ke6 d4 h5 c6 b5 c5 Kd5 c7 f5 e6 e2 Kd2 Kc4 g5 b4 c6 a6 d5 f4 e7 h3 e8Q e3+ Kc2 b3+ Kb2 f3 Ka3 f2 Ka4 b2 d6 Nf6 g6 Bd7 c8B Qe7 g7 Rf8 g8R Ne4 Bg2 f1B Nf3 e1N Na3+ Kc3 Qd5 b1B Nc4 e2 Bb7 Nd2 Nh4 Nd3 Ng6 e1R Qdf7 Bc2+ Ka5 Qe2 c7 Nb2 c8R Rd1 Qee6 Be8 Bbd5 Nd7 Rc5 Rb8 Rh8 Rb4 Qg8 Rf3 Qef7 Nb1 Bg5 Nd2 Bh4 Rc1 Qgh7 Rb8 Rf8 Bd1 Qhg8 h2 Rg1 Qe7 Rb1 Bd3 Rf1 B3c2 Rf2 Rd3 Rf3 Qe2 Rg3 Rf3 Rh3 Nd3 Rb4 Rb6 Ra4 Rbb1 Rb4 Nb2 Rb7 Nb8 Re7 Nd7 Re4 Nd3 Rg4 Nb2 Rf4 Nb3+
Rr1Qb1K1/1Qn3Rp/5R2/5rPn/2b2r2/1p1Np1B1/nPkbB1N1/4qQ1R w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 c5 g4 a5 d4 b5 f6 h3 d6 a4 d7 a3 Ke6 h2 Kf7 e5 f5 e4 d5 c4 g5 e3 d6 c3 Be2 c2 Qd5 Qa5 d8R Nc3 d7 a2 Nh3 Rb8 Nf2 Ba6 Qb7 Kb3 Re8 b4 d8Q Nd5 Nc3 Bc4 Nd3 Nc7+ Nd5 Bg7 Bd2 c1N Bc3 Kc2 Be1 b3 Bg3 Qe1 Re7 Bf8 Rd7 Bb4 Kg7 Bc3 N5f4 Bd2 f7 Nf6 Ng2 Re8 f8Q Re4 Kh8 Nh5 f6 Rf4 f7 Rf5 Kg8 Rf4 Rb1 a1R Re7 Ra6 Ra1 Raf6 Ra8 R6f5 Qh6 Kb1 Qha6 Kc2 Qab5 Na2 Q5a6 Bb5 f8R Bc6 Rf6 Be8 Rf1 h1B Rg7 Nc3 Qa1 Na2 Rg1 Qf2 Qf1 Qe1 Nh4 Bhc6 Rh1 Bb5 Ng2 Bc4+
Q3K1nB/n5p1/5Q1R/1qnRbBp1/PN3r1R/P1kp2N1/2N2r1b/1r1b3N w - - 0 1 illegal: No proof kernel
Q3r2B/rbQ1BRpN/p1Q1b3/P1RNK3/1P2nn2/2b3k1/2pB1n2/r4q1Q w - - 0 1 illegal: No possible last move, all moves rejected
2n1n2Q/2nPrqp1/Pp1p1Rr1/3BBN2/bBrN2k1/1N6/Q2b4/K1b1R1N1 w - - 0 1 illegal: No proof kernel
4Q3/KpB4k/bp1RP3/r2Pnb2/1Q1n4/2QRN1N1/r1N2pQ1/qr1B1nb1 w - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 d5 cxd5 Rh7 gxh5 Rh6 b5 Rh8 b6 axb6 Kf2 f5 a4 Kf7 h4 c5 e4 g5 d4 Kg7 d6 g4 d7 c4 e5 g3+ Kf3 c3 e6 g2 a5 c2 h6+ Kh7 a6 Bc5 h5 Ba3 a7 Nf6 Qd2 Kg8 h7+ Kg7 h6+ Kg6 Qb4 Qe8 d8Q Qf7 Rh3 Qd7 Be2 Ng4 Bd1 Nc6 Qg8+ Qg7 Ne2 g1R Ng3 Bd7 Be3 Bb2 Na3 c1N Nc2 Be8 Ra5 Nd3 Rd5 Re1 Rd6 Re2 Bg1 Ne3 Bh2 Nf1 d5 Bf7 Qe8 Rg8 h8N+ Kh7 Ng6 Bd4 Ne5 Bg1 Ng4 Bg6 Nge3 Rg2 Ne4 Qa1 Ng3 Rb8 a8Q Rf8 Qaa5 Ra8 Qaa3 Ra5 Qac3 Re2 Qd2 Re1 Qg2 Re2 Ne1 Rea2 N1c2 Nde5+ Ke2 Nf3 Kd3 Nfd4 Kc4 f3 Kd3 Kh8 h7 f2 Kc4 Kg7 Kd3 f4+ Kc4 Bf7 h8Q+ Kg6 Qe5 f3 Kd3 Rh8 Ke4 Rh5 Qf6+ Kh7 Qe5 Bg6+ Kf4 Nf5 Qec3 Rh6 Ke4 Nfd4+ Kf4 Ne7 Ke5 Bf5 Rd7 Rh4 Kd6 Rh5 Rd8 Nec6 Kc7 Ne5 Kb8 Rh6 Rd6 Rh4 Nh5 Rg4 Bf4 Rh4 Rg3 Rh1 Rh3 Nh2 Bg3 f1B Bf4 Ba6 Ka7 f2 Ng3+ Kg7 Bg5 Nf1 Bd8 Rb2 Bc7 Rb1 Nh5+ Kh7 Rf3 Rh3 Ng3 Ra2 Ng4 Rh4 Rd3 Ra5 Nge3 Re4 Nc4 Re2 N4e3 Rd2 Ne1 Rdb2 N1c2 Rba2
2k1Bb2/p1P3PB/2r1pn1N/N1Qn1b2/n1N1pB2/3N2Rb/4K1Qr/q3r2R w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 b4 d5 f4 Kd7 c4 h5 g4 e6 c5 d3 c6+ Kc7 g6 d4 b6+ Kd6 b5 h4 g5 d2+ Ke2 h3 g7 h2 g6 Nd7 b7 Kc7 b8N Rh6 f5 Qe8 b6+ Kd8 f6 Ne7 g8B Rh3 b7 Rh7 f7 Rh4 g7 Nb6 Qc2 d1R Nd7 Na4 b8N Kc7 Nc5 Ba6+ Nd3 Kc8 Bf4 Nd5 Nd2 Nf6 Bh7 Re1+ Kf2 Qe7 Ngf3 Qa3 Ng5 Qa2 Rb1 Qa1 Nc4 Rh6 Rg1 h1B Rg3 Bf3 c7 Bg4 Qa2 Bf5 Nc6 Rb8 N6a5 Rb6 Be2 Rhh1 Bh5 Rc6 Qe2 Rh4 Qf3 Rh2+ Qg2 Re3 Rh1 Re1 Nf3 Bb5 Nfe5 Ba6 Ng4 Bb5 Ndb2 d3 Nh6 d2 Nd3 Ba6 Be2 Bb5 Ke3 d1N+ Kd2 Ba6 Bh5 Ndc3 B5g6 Bc5 Bh5 Ncd5 f8Q+ Ne8 Qe7 Nef6 Be8 Ba3 Qd6 Bb5 Qe5 Bf8 Qd4 Ba6 Qc5 Bb5 Na3 Rf1 Nf2 Rh4 Qh3 Bd3 N3c4 Re1 Qf1 Be2 Nd3 Beg4 Qg2 Rh2 Nf2 Rg1 Nd3 Bh3 Ke2 Re1+
2R2rkn/1Bq2b2/4b3/N2n3Q/2rbQQpP/ppN3PB/1r1N1q2/2KRQ3 w - - 0 1 illegal: No proof kernel
4q2K/1kB1R1b1/3r4/rqQ2B2/1N1nP1B1/pQR4p/1pn2BbP/RqNn4 w - - 0 1 legal: proof: d4 b5 b4 f5 g4 e5 dxe5 fxg4 a4 c5 axb5 cxb4 Kd2 a5 Kd3 d5 Kd4 Kd7 f4 Kc7 e4 g5 c4 h5 e6 b3 Ke5 b2 f5 a4 f6 a3 b6+ Kb7 e7 d4 e8R d3 c5 g3 f7 h4 Be3 g2 Nc3 d2 Be2 g4 Nd5 g3 Nb4 Na6 Qb3 d1N Bg4 Ne7 Kf6 Nc6+ Re7+ Qd7 Kg6 Nd4 Ne2 g1Q Nc1 g2 Bf2 Qf1 Kf6 g1Q c6+ Kb8 b7 Qb5 Bf5 Qe8 c7+ Ka7 b8B+ Kb7 Bg4 Rh5 Kg6 Rd5 Kh7 Rd6 Kh8 h3 Bf5 Be6 Bg4 Bc4 Bf5 Bf1 c8B+ Kb6 Bcd7 Bg2 Bc7+ Kb7 Bg4 Qgf1 Bdf5 Qfd3 Re1 Qb1 Re3 Ra7 Nc2 Nb4 Rc3 Nbc6 Nb4 Nc2 Rc5 N6d4 Rc3 Bh6+ f8Q Ra5 Qfg8 Bf8 Qgd5+ Qbc6 Qe5 Qb5 Qc5 Bg7+
2R2q2/B1Bk1N2/2r2qRN/nr4Q1/1Qp5/1p1bPQNN/p1PbKn2/b6r w - - 0 1 illegal: No proof kernel
R3n1Q1/qk1rr3/R1R2QBq/3N3n/2pp1p2/2nP1b1B/2q1PN2/2KRN1b1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b6 b4 b5 c4 e6 Ba3 bxc4 b5 e5 Bb4 axb4 fxe5 Rh6 Bh3 Rh7 Bf1 Rh8 a4 g5 h4 c5 d3 d5 Kd2 Kd7 e6+ Kc7 h6 f5 h5 g4 a5 g3 e7 f4 e8B c3+ Kc1 c4 b6+ Kb7 h7 g2 h6 b3 Bg6 c2 Nd2 Qe8 Nh3 g1Q Nf2 Nf6 Nf3 Ra7 Ne1 Qe6 Bh3 Na6 Ra3 Rg8 h8N Rg7 h7 Re7 Qd2 Rd7 Qc3 Nh5 Qf6 Bc5 Ra4 Nc7 a6+ Ka8 Ra1 Ne8 b7+ Kb8 Ra3 Kc7 b8R Bb7 Ra4 Kb6 Rc8 b2+ Kd2 b1N+ Kc1 Nc3 Rc6+ Kb5 Ra1 Qd6 Ra2 Qf8 Ra4 Qh6 Ra1 Ba8 Ra3 Rab7 a7 Re7 Raa6 Rbd7 Bf7 Qgg7 Ng6 Bb6 h8Q Bd4 Ng4 Bg1 Qg8 d4 Nf2 Bb7 a8R Qgh7 Rc7 Bf3 Rcc6 Re6 Qd8 Rb7 Kd2 Bh2 Qf6 Re5 Rf1 Bg1 Ng2 Rd5 Rd1 c1Q+ Ke1 Re5 Ne7 Qc2 Nd5 Q7g7 Bg6 Qc7 Rc8 Re7 Rca8 Qb6 Nb4 Qa7 Nd5 Qb1 Kd2 Rbd7 Ne1 Qb3 Ra2 Qba4 Kc1 Ka5 Nb6 Ka6 Nd5+ Kb7 Ra1 Qb3 Raa6 Qc2+
2qr4/1Q2r1N1/QQ1BR3/1R2P2q/rpnpQ2P/2p5/1k4nN/bbnK2NB w - - 0 1 illegal: No proof kernel
N1R1B1nQ/R1r1n3/2N5/1k1P1r1b/pP6/3qp2p/1r2QBRq/RKbB3q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 Kd2 c5 Kc2 h5 f4 e5 b4 c4 b6 e3 d6 Kc6 d7 c3 f5 e4 g5 h3 b7 e2 g6 e1Q g7 h4 f6 h2 f7 h3 d5+ Kb6 Qe2 a4 Be3+ Bc5 f8Q Qg3 Nf3 Qdg5 d8R Q3f4 Nbd2 Nc6 Nc4+ Kb5 Kb1 Bg4 Bf2 Be3 Rg1 h1Q Rg2 Rh7 Rc8 Bh5 Nfe5 Nce7 Nc6 Qgg3 Qe8 Ra7 b8R+ Rb7 Qd8 Bc1 Ra8 Rc7 Ra7 e3 Nb6+ Qc4 Na8 Qgh2 Qf8 Rh6 Qe8 Rf6 Qf8 Rf5 Qf6 Ba3 Qh6 Bc1 Qh8 Nh6 g8B Qd3+ Ka2 c2 Bf7 Nhg8 Be8 Bd2 Kb2 c1R Ka2 Rc2+ Kb1 Rf4 Qf3 Bc1 Be2 Rf8 Bd1 Rf5 Qe2 Rb2+
1brBQ3/2rqQ3/q6R/Nbp5/1BPkPK1N/nrp3Rp/8/B1nN2Nq w - - 0 1 illegal: No extended proof kernel
1r6/nb1BN1n1/7N/N1p1B1p1/RP1QbNR1/bB3P1K/q2p4/1Qqq1k1r w - - 0 1 illegal: No proof kernel
3N3k/R1n1n3/4nrRr/P1BQRRbp/K2p1P1p/1q6/Qq4B1/b1B2bN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 Kd2 Kf7 f4 Kg7 g4 h5 a4 d5 c4 b5 Kc2 e5 Kb3 e4 c6 e3 f6+ Kh7 c7 e2 c5 e1B f7 Ra6 g5 Nd7 c6 Bc3 Nd2 Be7 Bg2 Nf8 Ne4 Bh3 c8Q Qb6 c7 Ne6 f8B d4 Qd7 Qb7 c8R Bb2 Ra3 Ba1 Qd5 Bd8 Qd2 Ne7 g6+ Kg8 a5 Rh6 Rc7 Kh8 Ng5 Qb8 Ra7 Rb6 Bf3 Bf1 Bg2 Ra6 Ra2 Qb7 Rc2 Rc6 Ka2 b3+ Ka3 b4+ Ka4 b2 Rc5 b1N Q2a2 b3 Rb5 b2 g7+ Kg8 Rc5 Na3 Nf7 b1Q Rh2 Kh7 g8R Q7b2 Rg6 Nb5 Rh3 Qd3 Re3 Nbc7 Re5 Qf3 Nd6 Kh8 Nb7 Nf5 Rb5 Bg5 Bc5 Ne7 Nd8 Nf8 Rb6 Rf6 Rbe6 Qd3 Rf5 Qe3 Re4 Nfe6 Ree5 Qeb3+
N1qNr2K/4R3/3Q1bRn/Pp1r2pR/5Pbn/4Qn1B/kq1N1p1R/3qB3 w - - 0 1 illegal: No possible last move
4KB1n/k7/q5bq/p2N1Q1R/2pNPPRr/5BN1/p1B1Q1rb/3bqn1N w - - 0 1 illegal: No proof kernel
1K5k/N1BRr1q1/5bb1/pr1B1B2/p5Nn/bRBPqQP1/2p1Q3/n5nN w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 h4 fxe4 a4 g5 hxg5 bxa4 Ke2 Kf7 Ke3 Kg7 Kf4 a5 Ke5 c5 f4 h5 b4 h4 d6 e3 b5 h3 d3 c4 g3 e2 d7 e1N g6 h2 f5 e6 b6 c3 b7 c2 Nf3 Bc5 Nbd2 Qe8 d8B Ba3 Bh3 Rh5 Bc7 Ne7 Ne4 Kh8 Nf2 Ra7 Bd2 Na6 b8N Nc5 Kd6 e5 f6 e4 f7 e3 Qe2 Bf5 Ne5 Nf3 Nbc6 Ng1 Neg4 Nb3+ Bb4 Rg5 Rb1 Na1 Rb3 Qg8 f8Q Rh5 Qf7 Qg7 Qf6 Be4 Kd7 Rc5 Bc3 Nf5+ Kc8 Nh4 Qff3 Bf5+ Kb8 Be4 B7e5 Re7 Bc7 Bf5 Na7 Be4 Qd1 e2 Qf1 e1B Q1e2 Qf6 Nc8 Bd2 Na7 Bg5 g7+ Kh7 g8B+ Kh8 Nc6 Bg6 Na7 Qg7 Bd5 Bf6 Ne5 Rd7 Bf5 Re7 Neg4 Nh3 Rhb1 h1Q Rb7 Qc1 R1b3 Ng1 Nh1 Qe1 Bf4 Qf2 Rd7 Qe3 Bc7 Rb5+
1Qr1k3/1QnN4/1K1B1nNR/p1pP1q1r/Q5p1/4r3/1BPN1qQ1/q1Rb2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 e4 dxe4 Be2 Qd7 fxg5 Bb7 g6 Bc8 g5 Qd8 Bg4 hxg4 Kf2 a5 Ke3 f5 h4 e5 b4 c6 d4 Qd7 h5 Nh6 b6 Qg7 b7 Qd7 b5 Rg8 g7 Kd8 g6 Ba3 d5 Ke8 b6 Rh8 Qd2 Ng8 h6 Na6 b8Q Nf6 h7 Nc7 g8Q+ Bf8 Qa7 Ba6 g7 Be2 b7 Bd1 Nf3 Rc8 b8B c5 Qg2 f4+ Kd2 e3+ Kc3 e4 Kc4 e2 Qb7 e1Q Rh6 e3 Nbd2 e2 Bb2 Qf2 Rc1 e1R Ne5 Qf5 Nd7 f3 Qf7+ Kd8 g8Q Re3 Qfg7 Ke8 Qc6 Na8 Kb5 Nc7+ Kb6 Re6 Qg5 Re3 Q8g7 Bd6 Qa4 Bh2 Qgf4 Bg1 Qfb4 Rf8 h8N Rg8 Qh7 Rg5 Ng6 Rh5 Qg7 Qe2 Qbb5 f2 Qbb4 f1Q Qbb3 Ne6 Bd6 Qef2 Qbb5 Ng8 Qe5 Nf6 Qa6 Q1e1 Qb7 Qef1 Qef4 Nc7 Qfb4 Qc4 Qb8 Qa2 Qbb5 Qa1 Qc6 Bh2 Qcb7 Bg1
1RRq4/2bK4/Q1N4p/1R1B1rkB/1pq1prbR/nN1N3P/Pq1n4/Q6n w - - 0 1 legal: proof: e4 a5 c4 f5 f4 g5 b4 d5 cxd5 axb4 Bb2 Na6 Be5 Bd7 exf5 Nb8 f6 Be6 f5 Bc8 Bf4 gxf4 Ke2 Kf7 Kf3 b5 Kg4 e5 d4 c5 d6 c4 d7 h6 d5 e4 d6 c3 Ne2 c2 Nc1 f3 Nd2 b3 Be2 b2 Ndb3 b1Q Nd3 Qe7 d8Q c1Q d7 f2 Qa5 f1N d8N+ Ke8 f7+ Kd7 f6 Qc4 Kf5 Qb2 g4 Nc6 g5 Ne5 g6 Nd2 Nc6 Qd8 g7 Bd6 f8R Bc7 f7 Nf6 g8B Nfg4 Qa6 Nf2 Bh5 b4 Rc1 Rh7 Rc3 Rb8 Qa1 Rb5 Re8 Rg7 f8R Rg4 Bd5 Ra5 Re7+ Kd6+ Kf6 Bf5 Rg8 Rf4 Rg5 Bg4+ Rf5 Qg8 Re8 Rc5 Rb8 Qc8 Rf1 Nh1 Rf3 Qe8 Rh3 Rb5 Rh4 Qd8+ Ne7+ Qc6 h3 Nec4 Kf7 Na3 Rc2 Kd7 Rc1 Qc4 Nc6 Ra5 Rc3 Qb5 Rc5 Qc4 Rcb5 Kd6 Rc8 Kd7 Rbb8 Bd1 Be6+ Kd6 Ndc5 Bg4 Nd3 Qdf6+ Ke8 Rc5 Bg8 Qh8 Rf7 Ke6 Rd7+ Kf5 Rd5+ Qbe5+ Kd7 Kg5+ Be6 Ra5 Rdb5 Qf8 R5b7 Qb2 Rb6 Raf5 Bd5 Qfh8 Rb5 Qd8+
1q1k1b1N/3B1BQq/1n4bp/2rp1N2/2P2Q2/1NR3pR/2Pn2n1/1B2qrBK w - - 0 1 illegal: No proof kernel
4Bb2/Q7/3n2PN/Pp1B3p/nk2qRp1/3qBQN1/r1R3r1/r2bNBKb w - - 0 1 illegal: No proof kernel
B2Nkq1B/7B/R3bp2/3PqP1N/pp1b1b2/rrRK2Q1/3nn3/1r1QQ2B w - - 0 1 legal: proof: e4 b5 a4 g5 h4 d5 hxg5 dxe4 axb5 c5 b4 cxb4 Ke2 e5 d4 a5 f4 h5 c4 h4 g4 e3 d5 h3 b6 e4 c5 h2 g6 Nh6 b7 Bd6 f5 Na6 b8Q Bf8 c6 Be7 c7 Kf8 g7+ Ke8 g8Q+ Bf8 g5 Be6 c8B Ng4 g6 Ne5 g7 Ng6 Nc3 Rh3 Nb5 Nc5 Bb7 Nb3 Nd4 Nd2 Qe5 f6 Bg2 Ra7 Ba8 Qe7 Nc6 Nf4+ Ke1 e2 Nd8 Rg3 Nh3 Rb3 Rf1 Ra6 Rf3 h1R+ Kf2 Qd6 Rc3 e1B+ Ke3 Ne2 Nf4 Bg3 Nh5 Bh2 Qg3 Qe7 Qge1 Bf4+ Kf2 Rg1 Bh1 Ra7 Qh8 Qd6 g8B Qe5 Qg7 Bc5+ Re3 Qb8 Bh7 Bd4 Qg3 Rf1+ Kg2 Qd6 Rc3 e3 Ra4 Qf8 Ra1 Nb1 Ra2 Rg1+ Kf3 Rf1+ Ke4 Nd2+ Kd3 a4 Ra1 Re7 Rb1 Ra3 Rbb3 Rc7 Rc6 Rf3 Rd6 Rc2 Rc3 Rb2 Rc6 Rb1 Ra6 Ng1 Qgf2 e2+ Qe3 Rh3 Q1g3 e1Q Qef2 Qe5 Qfe1 Ne4 Be3 Ne2 Bd2 Ba7 Be3 Nd2 Bc5 Qh8 Bf8 Bd4 Bg7 Qf8 Bh8 Qb8 Qe3 Qc7 Rb3 Bc5 Kc2 Qe5 Q3g1 Rd3 Qgg3 Rd4 Re3 Rdd3 Rf3 Rdb3 Rc3 Bg1 Kd3 Bd4
RB3N2/5bqR/3b1p1r/Pq2Rrkp/p1Qq3R/1B3PKn/Q1Q5/1n4Nb w - - 0 1 illegal: No proof kernel
6N1/Nb4nn/Qb1NPRRb/1pr2N2/1q5K/Bk2pB1n/1Ppq2Qr/3Q4 w - - 0 1 illegal: No proof kernel
2Q2Q1N/2rR2K1/b3pPR1/3Pp1nN/1B2qqn1/5p1R/1rQb1Q1b/3B2qk w - - 0 1 illegal: No proof kernel
5Nk1/3q3r/3P1Q2/nRb1npnN/1Nq1B3/K1p1p2R/2BPrb2/2QbB2B w - - 0 1 illegal: No proof kernel
3Q4/5Bb1/k1PK1P2/2Qrr1NR/b3p1RR/1N2n1B1/q1p3pq/1N1r1qnR w - - 0 1 illegal: No possible last move, all moves rejected
qNqN1R1Q/k6N/2Pbp3/6r1/2p5/bBnNP3/p2r1Rr1/nqQ1K1BB w - - 0 1 illegal: No proof kernel
B1N2b1N/rrB2Nq1/2PBp1b1/Q1p3R1/2qp2P1/4n2k/1QR2r2/Kq1B1n2 w - - 0 1 illegal: No possible last move, all moves rejected
1Bb3kN/nnRB4/1rp3q1/rQ1pqNB1/1RP3b1/8/pNP1N1Qq/1b5K w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Kf2 Bb4 Ke1 Bc3 dxc3 gxh4 Kf2 Kf8 b4 d5 e4 h5 g4 f5 Kg2 a5 b6 c6 b5 a4 b7 h3+ Kh2 h4 g5 a3 g6 f3 e5 f4 e6 f2 b6 f3 Qe2 Na6 b8B Qc7+ Bf4 Qe5 b7 Nc5 Nd2 Ra5 Rb1 Ne7 g7+ Kg8 Rb4 Rh7 Bg2 f1Q Nc4 f2 Nb2 Qd1 Qg4 f1B Ne2 Qd3 Bf3 Rh8 Qg2 Qg6 Bg4 Rh7 Kg1 Rh8 Bg5 h2+ Kf2 h3 Bf5 Kh7 g8N Kg7 Rg1 h1Q Nh6 h2 Nf7 Kg8 Bg4 Rh3 Nh8 Rd3 Bh3 Rd1 Bf5 Rb1 Bg4 Bd7 Bf5 Nc8 e7 Na7 e8N Be6 Nd6 Bc8 Na4 Rb2 Bd7 Rb3 Nf5 Rb2 Nc1 Bc4 Ne2 Ba2 c4 Bb1 Rf1 Rb3 Nb2 a2 Re1 Nd3+ Kf3 Qg1 Rf1 h1B Rf2 Qgh2 Rf1 Nc5+ Kf2 Qhh7 Kg1 Qh3 Rf4 Qg3 Rh4 Qh3 Rh7 Qhh6 Qg3 Bf3 Qg2 Bg4 Re7 Qhg7 Kh1 Qed6 Be8 Qf4 Rc7 Qge5 Bd7 Qd2 Ra4 Rb6 Rb4 Nb5 Ba7 Qdf4 b8Q Qf2 Qb7 Qfg3 Qa6 Nb7 Bb8 Na7 Qb5 Qh2+
K5nb/Nr2NqbR/2p3q1/p3Q1r1/b1n2BRR/1PNpQ1Rr/4P3/5B1k w - - 0 1 illegal: No proof kernel
1B2nQN1/2n5/2p1q1B1/pn1PQQr1/3q1B1r/1bk1B3/4PKpR/1R1qb1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 b4 Kd6 d4 g5 b6 f5 h5 a5 h6 g3 b7 g4 b5 c6 b6 g2 h7 f3 Ra3 f2+ Kd2 g3 Ke3 f4+ Kf3 Na6 b8Q+ Nc7 b7 Be6 Qc2 Nf6 Be3 Bh6 Rd3 Ne8 Rb3 Rg8 h8Q Rg5 Rh3 Qd7 Qc8 Nb5 Nc3 Bf7 Qg7 Qe6 Rh2 Ra7 b8B+ Rc7 Nh3 g1Q Bg2 f1N Qf5 Bg8 Rb1 Bf7 Bc1 Ne3 Bh1 Qd1 Ng1 Qd2 Bg2 Bg8 Bh3 g2 Kf2 f3 Bg4 Qd1 Bh5 Qa4 Bg6 Qa1 Ba7 Re7 Qh8 Rh7 Qhe5+ Ke7 Ke1 Nf6 Ne4 Rg3 Bb8 Bf7 Qg8 Ne8 d6+ Kd7 Bc7 f2+ Kd2 f1Q Qgh8 Nd5+ Qef4 Qa4 Bb8 Ndc7 Qe3 Bg8 Kd3 Qfd1+ Bd2 Bf7 Qf8 Rg4 Qg3 Be3 Qgf4 Rhh4 Qg3 Rg5 Nf6+ Kd8 d7 Qe5 Qgf4 Bb3 d5 Qe6 Q4e5 Qa1 Ng8 Bf4 Ke4 Qd4+ Kf3 Be3 Be1 Bc1 Bg3 Bd2 Nh6 Bc3 Bf4 Bd2 Qfh8 Ke7 Be3 Rg3+ Kf2 Rgg4 d8B+ Kd7 Qeg7+ Kd6 Bg5 Kc5 Qge5 Kc4 Qhf8 Kc3 Bf4 Rg5 Ng8 Be1+
2B5/4R1K1/1Rp3PP/5qB1/2qn2Nq/2bNNbR1/pn1kp1QQ/n2r1R1r w - - 0 1 illegal: No proof kernel
q1bB2N1/Q1nR1b2/P3R1n1/4p1qQ/QP1bkp2/Q3r2p/2N3Rr/3Bn1K1 w - - 0 1 illegal: No proof kernel
1RK2BN1/Nq2q3/p1b1BNRr/1Q1PnP2/3r3n/4Q1b1/3pNpqR/1r1k4 w - - 0 1 illegal: No proof kernel
2q1Q3/3N1NkP/b2KpRN1/1B2bqn1/1n3nrr/RP1p4/1RbR2p1/1QB5 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 a5 Ke4 d5+ Ke5 g5 f4 e6 c4 a4 h4 g3 b6 g4 h5 d3 c5 d2 b7 g2 h6 d4 f6 g3 f5 a3 c6 a2 c7 Qd7 h7 Bb4 Ne2 g1N Nf4 g2 Ng6 Ne2 Nc3 Ra5+ Nb5 Na6 b8R Nh6 b3 Bb7 Rd8 Ra4 c8Q Bc3 Rb1 a1Q Rb2 Qe8 Kd6 Nf4 Qc2 d1B Qb1 Rf8 Bd3 Bc2 Rd1 Ne2 Rd2 Rg8 Qc6 Nb4 Ra8 Qc8 Ra5 Ra2 Ra3 Ba6 Bc4 d3 Qa8 Nf4 Qb8 Ke8 f7+ Kd8 f8N Ke8 Nd7 Kf7 Qa8 Kg7 Qb8 Qb7 Qe8 Qc8 Na7 Bf6 Bb5 Bd4 Nc6 Be5+ Ke7 Nf7 Nd8 Ng5 f6+ Kh6 f7 Kg7 Ra5 Ra4 f8R Qa2 Rf6 Qa3 Nf7 Qa1 Ra2 Qd4 Rb2 Qe4 Rf2 Qf5 Re2 Na2 Rd2 Rc4 Ra3 Nb4 Nc5 Nfh3 Nd7 Rh4 Nd6 Nf4 Nf7 Bd4 Kd6 Bc3 Raa2 Be5+ Ke7 Nf3 Ra4 Na2 Ra3 Nb4 Nd6 Kh6 Ngf8+ Rg6 Nf7+ Kg7 Nd6 Rhh6 Nf7 Rg4 Ng6 Rh5 Qa1 Ng5 Qb1 Bd4 Kd6 Rhh4 Nfh8 Bc3 Nf7 Be5+
3qB1q1/1krQ1Nbp/3r2p1/2B1R3/4Kn1Q/p1B1BQP1/n3nP2/1NqR3b w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Qd6 Bd3 Qh6 Bf1 Qxh2 Ke2 Kd8 Ke3 c5 d4 Kc7 b4 e5 g3 a5 b6+ Kb7 d6 c4 d5 g6 b5 a4 d7 a3 d8Q c3 d6 c2 d7 Nf6 Qd2 Nh5 Qg5 Ra6 d8Q Nc6 Qh4 Nf4 Nh3 Bg7 Qf8 Nd4 Ng5 Nde2 Nf7 Qh3 Bg2 Qd7 Rd1 Qd8 Bb2 c1N Bc3 Na2 Qd7+ Kb8 b7 Rd6 Bh3 Ka7 b8B+ Kb6 Rd2 Bb7 Rd1 Bc6 Bc7+ Kb7 b6 Bd5 Be6 Bc6 Bb3 Rg8 Ba4 Bd5 Kd2 e3+ Kc2 e4 Re1 Rc6 Bd6+ Rc7 Bc5 Bc6 Qfd6 Re8 Qd5 Re6 Qdh5 Rd6 Qf3 Nec1 Rd1 e2 Rd5 e1Q Re5 e3 Bb5 Kb8 b7 e2 Be3 Bd5 Bc5 Qf1 Kd2 Qh1 Ke3 e1Q+ Kd4 Nce2+ Ke3 Be6 Ke4 Qc1 Bc6 Qhd1 Ba4 Qb3 Bb5 Rb6 Bc6 Ka7 b8B+ Ka6 Ba4 Kb7 Ba7 Rd6 Be3 Bg4 Bac5 Bh3 Qf5 Bf1 Be8 Bg2 Qd7 Bh1 Nd2 Qcb2 Rd1 Qc1 Nb1 Qe6 Ng5 Qg8 Nf7 Qg5 Red5 Qf6 Re5 Qd8
2N2Bbr/1B3rPp/1K1q2kp/nB3Rp1/N2bRqR1/6B1/1P2q3/n1Q2Qb1 w - - 0 1 illegal: No possible last move
Q3nB2/2n1N1pb/3p1kPN/1QrB1n1q/2q1bpK1/3R3r/4Pb1R/3Q2RQ w - - 0 1 illegal: No possible last move
NQ3q2/b3k1pp/rB6/1PP1K3/1RBN1N2/rB1b1pN1/2qR1nb1/nQq5 w - - 0 1 illegal: No proof kernel
N4q2/2Nr1pQp/1Bq3P1/2RP1n1Q/1R2p3/3q1N1n/BK1Nn3/3krbbQ w - - 0 1 illegal: No proof kernel
3R1BRK/2b1Rpp1/r1N1Q2n/3R2Br/4Qb2/1k1N1Pqp/2N2b1P/q2qn3 w - - 0 1 legal: proof: d4 b5 c4 h5 a4 d5 axb5 e6 g4 h4 Bg2 dxc4 d5 Bd7 d6 Bc8 Bd5 exd5 Qd3 Bf5 Qd2 Bg6 Qd1 Bh5 gxh5 Qd7 Nh3 Qc8 Ng1 Qd8 Kd2 Kd7 Kc3 Ke6 Kd4 a5 b4 c3 e4 c6 f3 a4 d7 c2 b6 h3 h6 a3 h7 a2 e5 Ra4 b7 Qe8 d8R Nh6 Qe2 Qd7 Bg5 c1Q Qe4 Ng8 Ne2 Bd6 Re1 Qa3 Nc1 Na6 b8N Nc5 Nd3 Ra6 b5 Qc7 b6 Nh6 b7 Qc1 Na3 Qb2+ Ke3 d4+ Kf4 Qc3 Rab1 a1B Nc2 Bb2 Rbc1 Q3a5 Rb1 Qa1 Rbd1 Bc3 Re2 Be1 Re3 Bf2 Re2 Re8 h8R Re7 Rhg8 Rd7 Qh7 Kd5 Qe4+ Kc4 Re3 Kb3 Re2 Ng4 Kf5 Re7 e6 Rd7 e7 Bdg3 e8Q Rd5+ Ne5 d3 Qe6 d2 Re3+ Nd3 Ree1 c5 Nc6 c4 b8B Qa7 Bd6 Qc7 Bf8 Rb5 Rd5 c3 Re2 Ne1 Nd3 Bb6 Re3 Bf2 Re2 Qg3 Re3 Qh4 Re2 Nh6+ Ke5 Rc5 Kd6 Qg3+ Ke7 Bc7 Rb1+ Ka2 Rb8 d1Q Rbd8 Kb3 Qe3 Rc4 Qg6 Ng2 N2d4+ Ka3 Rh8 c2 Qf5 c1B Nc2+ Kb3 Ke8 Bf4 Bd6 Ba3 Kf8 Be5 Re1 Ng4 Kg8 Bc1 Bf8 Bc7 Qd4 Rca4 Re7 Ne1 Qe6 Nh6+ Kh7 Rb4 Rg8 Rc4 Qde3 Rh4 Q3e4 B1f4 Kh8 Rh5
R2KBN2/bb2Pr2/2Q1pknR/3Pnq2/1B4Br/2n2p1Q/4prqB/5Q1N w - - 0 1 illegal: No proof kernel
BnNr2k1/1nB1p1qb/Q1R4R/3R4/1RqPnp1b/pPBK4/2NQr3/6b1 w - - 0 1 illegal: No proof kernel
R7/Q1Bp4/6Qb/1BR3n1/2pnp3/b1PR1QKn/Pkqq1Qb1/r1Nr1N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 f5 d4 e5 dxe5 fxe4 h4 Ke7 f4 Ke6 Kf2 g5 h6 b5 h7 c5 h5 b3 h6 g4 Bb2 g3+ Kg2 b4 Na3 Ra5 Kh3 g2 Bc3 b2 Nc4 b1N Nb6 b3 Qf3 b2 Ne2 g1B Nc4 Kd5 f5 Be3 e6 Nf6 e7 Ba6 e8Q Ng4 f6 Nd2 f7 b1Q Be5 Nf2+ Kg3 Nc6 Nc1 Nh3 Bc7 Kd4 Qf2 Be7 f8Q Kc3 Qg6 Nf3 Nd2 Nfg5 Bb5 Nd4 Q8f3 Kb2 c3 Qc2 Nf1 Qg8 Rh2 Qd5 Rh1 Rb8 h8Q Bf8 h7 Bh6 Nb3 Bc1 Qhf6 Rb6 h8R Ra4 Qg1 Rd6 Ra8 Rb4 Ba4 Be2 Bb5 c4 Qgf2 Bd3 Qh8 Be2 Qb8 Bd1 Qa7 Be2 Qd3 Bf3 Rh2 Bg2 Qdf3 Nde6 Rh1 Qdd2 Rg1 Nd4 Rh1 Nf4 Rh4 Nfh3 Rf4 Nde6 Rf5 Rd3 Rc5 Nd4 Ba4 Rb6 Bb5 Rd6 Bc6 Re3 Bb5 Re1 Qb6 Qdd3 Qh7 Nde6 Rf8 Ka3 Qg6 Qdd1 Rg8 Rd3 Rc8 Nd4 Qb7 Bb2 Qbb6 Qde2 Rd1 Qe3 Rd2 Ra1 Nc1 Qe2 Ba4 Qe3 Ra8 Qe1 Qa7 Qe3 Re2 Rd1 Rd2 Qe2 Rd3 Qed2 Nb3 Bc1 Bc6+ Kb2 Ba4 Kb1 Bb5 Ba3 Nc1 Kb2
r1qrq3/1b1p1Q2/6Q1/RPq1R1np/N2Q1Np1/2b2nkP/1BQ1KN2/6Bb w - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 e5 a4 exd4 axb5 d3 Bg2 c6 Bd5 cxd5 Be3 d4 Bd2 Qg5 Bc1 Qd8 b4 Ke7 e4 Kd6 c4 Ke5 f4+ Kf6 e5+ Ke7 e6 Kf6 c5 h5 c6 g5 c7 a5 e7 g4 e8Q d2+ Ke2 a4 b6 a3 b5 a2 b7 Bg7 Nc3 Nc6 b8B Ba6 c8Q Nh6 Bb2 Qb6 Nh3 Bb7 Re1 Qc5 Nf2 Nf7 h3 Nce5 Ba7 Nf3 Na4 N7g5 Qe4 Rd8 Qdb1 Kf7 f6 Bh8 Qec2 Ke6 f5+ Ke5 f7 Kf4 f8N Kg3 f6 Bg7 f7 d1B+ Kd3 Bh8 Ng6 Bf6 Qc3 Bb3 f8Q B3d5 Ke2 d3+ Kd1 d2 Nf4 Bg7 Qg6 Bd4 Qcd3 Bc3 Qd4 Be4 Ke2 d1Q+ Kf1 Qb3 Ke2 Qg8 Qff7 Bed5 Qcc6 Qh8 Qc2 Qe8+ Qce6 Be4 Qeg6 Qc8 Kd1 Bed5 Re5 Be4 Ke2 Bec6 Rh1 a1Q Bb6 Qa3 Ra1 Qae7 Qb4 Bd5 Nc5 Ra5 N2d3 Ra8 Ra5 Be4 Na4 Ne1 Bg1 Qec5 Nf2 Bh1 Qd4 Nef3
Qrq5/qQ1p2nk/p2P3B/5Kb1/NR1B1n1R/3B1Pp1/7R/1br1rBnN w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 f5 axb5 fxe4 g4 hxg4 Ke2 Kf7 Ke3 Kg6 Kf4 e6 h4 e3 c4 g3 d4 e2 f3 e1Q d5 g2 h5+ Kh7 c6 g6 c5 Kh6 c7 Qa5 d6 Kh7 h6 Na6 b6 Nb4 b7 Rb8 c6 Ne7 Ra4 Nf5 Nh3 g1N Qb3 Be7 Rh2 Ng7 Nf2 e5+ Ke4 g5 Nh1 g4 Nc3 g3 Bg5 Nh5 Kf5 Nd5 Rah4 e4 Na4 e3 Qb2 e2 Be3 Ra8 b8R e1R Rbb4 Ba6 c8B Bg5 c7 Rb8 Bd3 Bb5 Ba6 Ndf4 c8Q Qdc7 Qb7 Rhc8 Qa8 Qd8 Qb3 Rcc1 Qbd5 Qdc7 Qdb7 Qc8 Bf1 Qb6 Bd2 Bc6 Bad3 a6 Be3 Qa7 Bd2 Kh8 h7 Kg7 h8B+ Kh7 Bf6 Bd5 Bg7 Ba2 Bdc3 Bb1 Bcd4 Qc6 Bf8 Qc8 Bh6 Ng7+
kr2bb1B/1nPp1qNP/2Bn1R2/p3n3/6Q1/1bK3p1/3qRQRR/2Nr1Q2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 e5 c4 g5 b4 a5 h4 g3 f4 g4 c5 g2 h5 d3 h6 g3 f6 e4 f7+ Ke7 h7 Nf6 f5 Nc6 b6 Ne8 b5 Rg8 b7 Ra6 b8Q Bb7 b6 Rg6 Bb2 Ra8 Qf4 Rd6 Qfg4 Bg7 f8R Bc8 Ra2 Bb7 Nh3 g1N Bg2 Qc8 f6+ Kd8 Be5 e3+ Kc3 d2 f7 e2 Rh2 e1Q Nf4 Nf3 Nh5 Ba6 b7 Bd3 b8R Kc7 Rbb2 Bg6 Bf6 Nd8 c6 Ne5 Qdf3 d1B+ Nd2 Qe2 Qf1 Nb7 Nb3 Kb8 Nc1 Bb3 c7+ Ka7 Bf3 Rb8 Bc6 Rd1 Rd2 Bh6 Bh8 Ka8 Rab2 Nd6 Ra2 Qa6 Rdg2 Qe8 Rae2 Qe7 Rg8 Bg7 f8Q Be8 Q8f2 Bf8 Rg6 Qf7 Rf6 Qa7 Ng7 Qe3+ Nd3 Qg5 Nc1 Qd2+
R1B2KN1/nRPppNn1/2QQN1Q1/1nBP4/5q2/2b3Qq/p1b2r2/1rk1q3 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 h5 d4 a5 g4 a4 c4 h3 g5 h4 b6 h2 b7 a3 c6 e3 c5 e2 c7 e1Q c6 h3 Ne2 Ra6 Nd2 Qe8 Nf3 Rh5 Be3 Rh8 Ne5+ Kh5 Kf5 Nf6 f4 Bg7 g6 Ne4 Nf7 Rf8 d5 Nc3 Qb3 Qd8 Bc5 Nb5 Qg3 Bc3 g7 Rb6 g8N a2 Rb1 Qe8 Nd4 Qd8 Rg1 h1Q Ne6 h2 Rb3 Qg2 Ra3 h1N Ra8 Qgf2 Rg2 Qd4 Rb2 Qde3 Qg6+ Kh4 Bd3 Kh3 Kg5 Kg3 Kh6+ Kf3 Kh7 Qd4 f5 Ke3 f6 Ng3 Kg7 Qe8 Rb4 Kd2 Bc4 Kc1 Bd3 Na6 b8Q Na7 Be2 Bb7 c8Q Nc7 Ba6 Ncb5 Qd6 Qf4 c7 Bc6 Qb7 Nd4 Rb3 Ba4 Qbc6 Ndb5 Bc8 Rb8 Rb4 Bc2 Rb3 Na3 Rb7 N3b5 Ne5 Qd8 f7 Nh5+ Kh8 Re8 f8Q Ng7 Qff6 Rf8 Qg3 Qe8 Qfg6 Qef7 Kh7 Q7f5 Kh8 Rf6 Nf7 Q5g4 Ngh6 Qh3 Kg8 Qb4 Kf8 Rf2 Ng8 Qf4 Rb6 Na3 Ra6 Rb1 Rb6 N3b5 Rbb8 Bb4 Rb7 Bc3
3K1q1N/2pbQ3/R1b1b3/1n1PpB1B/rB2P2q/1kB3p1/r4NR1/1n1N1Q1q w - - 0 1 legal: proof: g4 a5 c4 g5 b4 axb4 h4 d5 cxd5 f5 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Bg2 g4 Bf1 Bg5 hxg5 Ra6 Nc3 Ra7 Nb1 Ra8 a4 Kd7 f4 Kd6 e4 Kc5 Ke2 Kc4 Ke3+ Kc5 d4+ Kd6 g6 h5 a5 b5 g7 h4 f5 b3 Kf4 g2 Kg5 e5+ f6 b2 a6 b4 a7 b3 Nh3 g1Q Nc3 b1B Bb2 g3 Ra6+ Nc6 Rh2 Qh1 Nf2 h3 Be2 Ne7 g8B Bc2 f7 Bd7 Kf6 Qf8 Rg2 h2 Qf1 Rh3 Ba1 b2 Bh7 b1B Ncd1 Ba2 Bh5 Ba4 Bc3 Rh4 Bf5 Rf4 Ba5 Rf3 Be1 Ra3 Bc3 Bb5 Be2 Ra4 Bh5 Re8 a8Q Rd8 Ra5 Na7 Ra6+ Bbc6 Qb7 Ra8 Qb8 Nb5 Qd8 Qe8 f8N Ra7 Ng6 Qg8 Qe8 Qf8+ Qf7 Bc4 Nh8 Ra2 Rb6 R7a5 Ra6 R5a4 Be1 Nc8 Bc3 Qg8 Qh7 Na3 Qg7 Be2 Qg5 Bg4 Bh7 Na7 B7g6 Bge6 Bf5 Bc8 Qg7 Nb1 Qf8+ Kd7 d6 Nb5 d5 Qg1 Ng4 h1Q Ngf2 Qgh2 Qf7+ Kd8 d7 Qf8 Kg6 Qh4 Qh7 Qe8+ Kg7 Ke7 d8B+ Kd6 Be7+ Kd7 Beb4 Qed8 Ba5 Kd6 Kg6 Kc5 Kg7 Re2 Bab4+ Kc4 Kg6 Kb3 Kg7 Be8 Kf8 Rea2 Qe7 Bb7 Qg5 Qa8 Ke7 B8d7 Qf6 Qg8 Qg5 Qf7+ Kd8 Bbc6 Qe7 Qf8+
1B4k1/1Rprqq2/1Q1R2Bb/P2R2bn/r1pNnRp1/8/KNn2qP1/5QB1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 h5 g5 c3 f5 c4 dxc4 exf5 Be6 Qe2 Bf7 Qd1 Bg6 hxg6 Qc8 Rh5 Qd7 Rh1 Qd8 f4 e5 a4 b5 d4 h5 Kd2 h4 Kc2 h3 Kb2 g4 f6 e4 f5 e3 f7+ Ke7 a5 b3 d5 b4 g7 e2 Nc3 e1B Rb1 h2 Nf3 Rh7 Nd4 Nd7 Bd3 Rb8 Be3 Bd2 Bg1 Ngf6 g8Q Nc5 Qf1 Bfh6 f8R Nce4 Nd1 Nh5 Qg6 Bdg5 Qb6 Rg7 Ka1 b2+ Ka2 Qe8 Bc2 Qf7 d6+ Kf6 d7+ Ke7 d8R b3+ Ka3 Rh7 Rd5 Rb7 Rc1 b1Q Nb2 Rg7 Bd3 Qc2 Rb1 Qf2 Rfd8 Rh7 R8d6 Kf8 f6 Qe7 f7 Kg7 f8B+ Kg8 Nd1 b2 Ka2 Rg7 Rd7 Qef7 Bc5 Rb8 R7d6 Rh7 Ra1 b1N+ Nb2 Na3 Rc1 Nc2 Rb1 Nef6 Bg6 Ne4 Qb7 Qe7 Ba7 Qff7 Qa6 Rb4 Qb6 Qf2 Bb8 Qff7 Be3 Rg7 Rg1 h1Q Bf2 Qh3 Rh1 Qhf3 Bg1 Rh7 Rh3 Qe3 Rf3 Qf2 Rf4 Rg7 Re1 Rh7 Re3 Rg7 Rb3 Ra4+ Ra3 Qee6 Qc5 Qf8 Qb5 Rd7 Qb7 Rb4 Rb3 Qef7 Qc6 Q8e7 Qb5 Na3 Qc6 Ra4 Rb7 Ng7 Qb5 Nh5 Qb6 Nc2+
3B1rnN/1rp2qn1/pRq1B3/n6K/2BkP3/3PRpr1/1b1Rb2N/Q3R2Q w - - 0 1 illegal: No possible last move
4N1Q1/B1p2nPp/b2Rq3/nn1P1k2/N3pNrB/1B2bq2/4RQ1B/2b3rK w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d6 Kd7 f4 Ke6 Kf2 a5 g4 h3 d4 a4 b4 h2 Kg2 a3 f5+ Kf6 d7 e5 g5+ Ke7 g6 Kf6 d5 a2 g7 e3 b6 e2 b5 e1B b7 e4 b6 Nc6 b8N Bd6 b7 Qe7 d8B Ra3 Ne2 Bf4 Nd7+ Kg5 b8B Bh4 f6 Ra4 f7 Bf2 f8Q Nd4 Qe1 Nb5 Nf6 Nh6 Ba7 Qe6 Nbc3 Ra3 Bb2 Bc1 Ne8+ Kg6 Qd2 Be3 Bh4 Rb3 Ba3 Rb2 Bd6 Rg8 Be1 Kg5 Bh4+ Kg4 Qf7 Rf8 Qg8 Rf4 Qe1 Kf5 Rb1 a1N Na4 Nc3 Qd2 Rc2 Rb6 Nb3 Be5 Na5 Rd6 Rg4+ Beg3 Ba3 Nf4 Bc1 Bc4 Nf7 Re1 Ba6 Bb3 Nb5 Qe2 Rc3 Qf1 Rd3 Qf3 Rd1 Re2 Rg1+ Kh3 h1Q+ Bh2 Qe7 Qf2 Qf3+ B2g3 Qe5 Kh2 Rg2+ Kh1 Qe6 Bh2 Rg1#
1b4Q1/2pP1B2/1PN5/2Kp1B1b/qR2B2B/1Nk3rr/rp1q1nn1/1R2R1nQ w - - 0 1 illegal: No proof kernel
3K1q2/1P1Np3/1R2BR2/nb1n1Rb1/1pBPqrr1/p2Q4/Q2Rb3/BrN4k w - - 0 1 illegal: No proof kernel
N1N1rn2/BprQQRNp/3n1bbp/2R2Pr1/3K2q1/5Q2/bQBP3k/2q5 w - - 0 1 illegal: No possible last move
1n1nN3/qp3pK1/2Q3R1/2Nq1P2/1nr2R2/2bQqprB/b2PR1RB/2k1N3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 Qf6 f5 Qd6 Qc2 Qf6 Qe4 Qd8 Qf4 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 c5 a4 Kb3 e4 Kc2 d6 g5 a5 b3 d7 c4 a6 b2 a7 c3 h6 g4 h7 g3 h5 g2 h6 Qg5 d8Q Kd1 Nf3 g1Q Bh3 c2 Ra4 Be6 Ne1 f3 Rh2 Q1e3 Qd3 Qf2 Rg2 Qg1 Ra6 Bc4 Rg6 Qh5 Re2 Ne7 Kf6 Ba2 e5 Qh1 e6 Rg8 h8R Qg1 h7 Nec6 e7 Qh6 e8N Qhe3 Rgg2 Rg7 Rg8 Rg3 h8Q Nd8 Qh6 Bb4 Rg6 Qgf2 Kg7 Ba5 Na3 b1Q Nc4 Bc3+ Ne5 Qb5 Ba3 c1N Bd6 Qd5 Bc7 Nb3 Bd6 Nd4 Nd7 Kc1 Nc5 N4c6+ Kf8 Rg4 Bh2 Rd4 Kg7 Nb4 Be5 Nd7 Bh2 Rc8 a8R Nb8 Raa6 Rc6 R6g4 Rb6 Rf4 Rg6+ Kh8 Rg3 Rg6 Qee6 Kg7 Qfe3 Qg5 Qa6 Qf6 Qa7 Qc6 Rc4+
2rNR3/1pN1Pb1B/R1R1nkqp/n3r2n/6pN/1q3bPQ/2RK2b1/1Q2B3 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 e5 Nc3 exf4 Nb1 d5 cxd5 g4 Nf3 Be7 Ng1 Bg5 hxg5 Bd7 Bb2 Bf5 Bc1 Bc8 a4 Ke7 d4 c5 e4 f5 g3 f3 d6+ Kf7 a5 f4 g6+ Kg7 a6 f2+ Kd2 b3 d7 b2 e5 h6 d5 c4 a7 f3 d6 Rh7 e6 Na6 Na3 b1Q Ra2 Nf6 Nb5 Qb3 Rc2 Qg8 d8Q Nc5 d7 Nh5 Bd3 f1B Qh4 f2 d8N Be2 Nc7 f1B Nf3 Bg2 Qh3 Kf6 Nh4 Re7 g7 Bef3 Bh7 Rb8 a8R c3+ Ke1 Bd7 Bd2 Rc8 Qb1 Be8 Ra6 Bf7 Rg1 Qe8 g8R Qc6 Re8 Qcb6 Rb2 c2 Ba5 c1N Rc2 Qc6 Kd2 Qe4 Rc6 Qg6 Bb4 Na2 Ba5 Nb4 Ra6 Nc6 Rgc1 Nd3 Bb4 Na5 Rcc6 Ndf4 R1c2 Ne2 Bc3+ Nd4 Bb4 Rd7 e7+ Ne6+ Kc1 Rd5 Be1 Rf5 Kd2 Re5
3rq3/1p1PQ1K1/P2b1ppN/1n2Q1N1/2B1QNq1/5q1b/R2B3k/nQR1rn2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 a4 g6 d4 c4 h4 f3 a5 b3 h6 b2 h5 f2 a6 c3 h7 c2 h6 Be6 Bd2 c1Q Ra2 Qb6 Nh3 Qcc6 Ng5 Qbb5 Nc3 Qcc4 Qb1 Kd7 Ke5 Bg4 e4 Bh3 Ne2 Nf6 Nf4 Ne8 Rg1 Qca4 Bc4 Nd6 Kf6 f1N e5 Nc6 e6+ Kc7 e7 Re8 Rh1 Na5 Rg1 Rd8 e8Q Nb3 Qee4 Qe8 Rh1 Nb5 d6+ Kd7 d5 Na1 Rg1 Rg8 h8Q Qb3 h7 Qf3 Qg7 Qg4 h8Q Qf3 Qc1 b1Q Qhh7 Qbd3 Qb1 Qg4 Qhh8 Qdf3 Rh1 Kc8 d7+ Kc7 Rg1 Kd6 Qgh7 Ng3 Rc1 Nf1 Q8g7 Rh8 Qh4 Rh5 Qh8 Be7+ Kg7 Rh6 Qhe1 f6 Qf8 Bg2 Q1e3 Rh1 Q3d4 Bh3 Qde5+ Kc5 Qf7 Bd6 Qfe7 Ne3 Qf7 Re1 Qf8 Nf1 Qfe7 Rc8 d8N Rb8 Qec2 Rc8 Ndf7 Rd8 Q5e6 Kd4 Nh6 Ba3 d6 Bc5 d7 Ba3 Qc6 Bd6 Nge6+ Ke5 Qc7 Qd3 Qb8 Ke4 Qa4 Kf3 Ng5+ Kg3 Qac2 Qc3 Qce4 Kh2 Qc7 Qa3 Qc5 Qe3 Qce5 Qef3
1n3bR1/Pr3K2/kNBR2Q1/3RB2r/1p4P1/NbR3p1/Qqqn2p1/Nrn5 w - - 0 1 illegal: No proof kernel
BqN3QN/p6n/5b2/nRK5/3R3p/1RP1B1pk/qr2QPRq/3bBn1r w - - 0 1 illegal: No proof kernel
b4Rn1/p3RK2/2qn3r/p3QPB1/b1B5/P1Rp3k/NN2N1b1/r2QRnq1 w - - 0 1 illegal: No proof kernel
Bq1R4/p7/1rr1rP2/Rpb3n1/1P1n1NN1/pR2q1b1/6QB/B1kbK1RQ w - - 0 1 illegal: No possible last move
4rN1R/p1R2b1q/2Pb3n/qp5P/k1pR1b2/1NQ1BK2/2q1rNR1/1B2n2Q w - - 0 1 illegal: No proof kernel
q5QB/p3p1QR/2brr1KR/1PN3R1/1q3N2/2b1Bq2/1pk2nBP/3b1nR1 w - - 0 1 illegal: No proof kernel
b1R1RBN1/p1p1KnB1/1N1nP2q/3N3q/1n4k1/b1Pr4/2r1p3/QqBB3Q w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 g4 hxg4 d4 e5 dxe5 fxe4 Kd2 Kf7 Kc3 Kg6 Kd4 Kf5 Kd5 g5 h4 e3 b4 d6 f4 g3 b6 g2 b7 g4 h5 g3 h6 Qg5 c3 Bg7 h7 Qh6 b5 Qh5 b6 Na6 b8N Qg4 b7 Qh5 Nc6 Bd7 b8Q Nh6 Nh3 g1Q Be2 g2 Na3 Qh2 Qb7 g1Q Nc4 Rad8 Nb6 Nf7 Qe1 Bf8 Bd1 Rg8 h8B Rg2 Bg7 Rc2 Rb1 e2 Ne7+ Kg4 f5 Be8 Ke6 d5 f6 d4 Nf4 d3 Ng8 d2 Nfd5 Ba3 Rb5 Nb4 Ke7 Qf4 e6 Bc6 Rh2 Qh1 Qa6 Qhe4 Qh1 Ba8 Rf2 Qfh6 Rf1 Ng5 f7 Qeh7 f8B Nf7 Nc4 Qe4 Rb8 Qef5 Ncb6 Qfh7 Nf4 Rd3 Rc8 Rf3 Qc4 Ng5 Qa2 Rb2 Bc2 d1N Qa1 Ne3 Rd1 Nc4 Rd7 Nf7 Rdd8 Ncd6 Bd1 Qb1 Nfd5 Rd3 Re8 Rc2
1kB5/3n3Q/n5NN/1b1KRbpB/p1p1r3/rqP3Pr/B3r1r1/4BRQN w - - 0 1 legal: proof: e4 b5 a4 e5 axb5 Nf6 d4 exd4 f4 Rg8 e5 Rh8 e6 Ng8 g3 h5 Be2 h4 Qd2 h3 Bf1 Bd6 Qg2 Be5 fxe5 hxg2 Ke2 f5 Kd3 g5 Kc4 a5 b4 c5 h4 d6 e7 Kd7 e8B+ Kc7 c3 f4 b6+ Kb7 e6 f3 e7 d3 b5 a4 h5 d2 h6 d1B h7 f2 Na3 Bcg4 Bf7 Nf6 e8B Ne4 Nc2 Nc6 Kd5 Qf6 Nh3 g1R Nd4 Bde2 Nf5 Ne5 Bd2 Kb8 b7 Rg2 Re1 Nd7 Nh6 Bf5 Bg8 Qd8 Bh5 Qb6 Be6 Re8 h8N Bd3 Bfe2 f1R Ng6 Rff2 Beg4 Re2 Rhf1 Rh8 Nf2 Ra5 Bf3 Rh7 Nh1 Ra6 Nf7 Ra7 Bhg4 Rh3 Nh6 Ne5 Rf2 Kc7 Bf4 Rc2 Ne7 Bh7 Bef5 Rh4 Ke6 Rh3 Bh5 Bf1 Bd2 d5+ Nc6 d4 Ree2 Nf6 Bd5 d3 Bb3 Ne8 Kd5 Ra2 Bc8 Ra3 Ne7 Ra6 Ba2 Nd7 Be3 d2 b8Q+ Kd8 Bf4 d1R+ Bd2 Re1 Qe5 Qb8 Qe4 Re6 b6 Bg6 b7 Kc7 Qf5 Bh7 Qf7 Bf5 Ng6 Re7 Re4 Ba6 Qh7 c4 Re6 Re2 Re3 Re4 Rff3 Rf4 Re5 Rfe4 Rf2 Ng7 Rf4 Ne6 Rf3 Nc5 Rf4 Qa7 Rf3 Qb6 b8Q+ Kd8 Qa8 Kc7 Be1 Qb3 Rf1 Bb5 Qa6 Kb8 Qb6+ Nb7 Qe3 Nbc5 Qg1 Na6
3b1Bk1/1nnN1RB1/2K1br1p/2NQ2rB/4bBPP/3b2N1/bRppq3/2Q5 w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 f4 gxf4 c4 b5 axb5 Bh6 c5 Bb7 b6 Bg7 b5 Bc8 b7 Bf8 Nc3 Qf6 Nb1 Qb6 cxb6 Kd8 Kf2 Ke7 Ke1 Ke8 Kd2 d5 Kd3 c5 h4 f5 e4 Kf7 g4 a5 e5 a4 Be3 f3 Be2 f2 Rh3 f1B Rg3 c4+ Kc2 f4 Kb2 a3+ Kc2 d3+ Kc3 d2 Kd4 a2 Bd3 h6 Nc3 f3 Rg2 f2 Na4 c3 Nc5 Be6 Bf4 Nf6 Bg6+ Kg8 Bh5 Ra5 Ne2 Be7 Qc1 d1B Ng3 Na6 b8N Ne4 b7 Nd6 b6 Bc2 Nbd7 Bc4 b8B f1B b7 Be4 Rb2 c2 Bc7 Bcd3 b8B Nb7 Bd6 Bd8 Bf8 Nc7 Rab1 a1Q Ba7 Bf7 e6 Qa2 e7 Qc4+ Ke5 d4 e8Q Be6 Qe7 Rh7 Qd6 Rf7 Qd5 Rf6 Ra1 Qb5 Ra3 Bc4 Rf3 d3 Kd4 d2 Bb8 Ne8 Bbe5 Bfd3 Rf1 Ba2 Rf2 Rf7 Beg7 Nc7 Rf1 Qc4+ Ke5 Rb5 Rf3 Rf6 Rf1 Na5 Kd6 Nb7+ Kc6 Qd4 Be5 Qe3 Rf5 Qe2 Bf4 Rg6 Rf7 Rf6 B4d6 Ra5 Bf4 Qg2 Nb3 Bh7 Qe4 Rg5 Nbc5 Qe2 Qd5 Bhe4
n3K1nB/2q5/P1R1pr2/kpB1N1r1/N1bb2BQ/1B1QP3/5r1p/1Rrr2N1 w - - 0 1 legal: proof: f4 d5 b4 g5 fxg5 a5 h4 axb4 c4 Qd6 h5 Qh2 h6 Bxh6 cxd5 Bf8 Kf2 Kd7 Ke3 c5 Ke4 Kc7 g4 Kb6 a4 h5 d4 c4 g6 b3 d6 f5+ Kd5 h4 g5 f4 a5+ Kb5 d7 b6 Ke6 h3 Kf7 f3 d8Q c3 d5 f2 g7 b2 g6 c2 d6 Ba6 e3+ Kb4 d7 b5 Qd3 Qf4+ Ke8 h2 Bh3 f1R Bg4 Rh4 Nc3 b1R Bb2 c1R Na4 Bb7 a6 Rf2 Bd4 Qc7 Bc5+ Ka5 Ra3 Be4 Rc3 Rh5 Rc2 Nh6 g8B Rg5 Bb3 e6 g7 Bd5 g8N Bc4 Ne7 Bg7 Ng6 Bd4 Ne5 Ng8 Qe7 Rf6 d8B Nd7 Qeh7 Rd1 Qh4 Rbc1 Rc3 Ra7 Bde7 Rf2 Bf6 Nb6 Bh8 Na8 Be7 Bd5 Rc6 Bc4 Bd6 Qh7 Bc5 Raf7 Nh3 R7f6 Re1 Rdd2 Ng1 Qc7 Rf1 Rcc2 Rc1 Rd1 Rb1 Rcc1
3K4/r3r2P/bN1B1kB1/p1R2p2/r2pnNq1/B1Q2r2/1n2P2b/RQ1N1r1B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 d5 c4 g5 h4 a5 b4 d3 b6 f6 h6 d2 h7 Qd6 b7 Bg7 c5 Nd7 Kg4 f3 Kf5 g4 b8N g3 b5 f2 c6 g2 h5 Kf7 h6 Qh2 b6 Qh4 c7 Qh2 b7 Nb6+ Nd7 Ra6 b8B Na4 Nc3 Qg3 Rh5 Ra7 Nh3 g1R Ba3 Nb2 Qb1 d1R Bg2 f1R+ Nf4 Rd3 Nd1 Rdf3 Bh1 Ba6 c8B d4 Nb6 Bf8 Bbd6 Be7 Bd7 Bd8 Bb5 Bc7 Bd3 Qg2 Ke4 Qg7 Kd5 Qg4 Kc6 Rgg3 Rc5 f5 Kd7 Rh3 Bc4+ Kf6 Bf7 Bb8+ Kd8 Rhg3 Bb4 Ra3 Bg6 Ra4 Ba3 Rgf3 Nd3 Kg5 Nf4 Nf6+ Bf8 Rg8 h8Q Rgg7 h7 Ne4 Bd6 Rge7 Qg8 Kf6 Qb3 Rf7 Qc3 Rfb7 Bf8 Be5 Bd6 Re7 Ne6 Bg3 Nf4 Bh2
4R1n1/k4Pp1/pr1Np1n1/1RRNP3/BQ2KbbN/1r2n2n/2Bq3n/3NQ3 w - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 c5 a4 cxd4 axb5 h6 Bg5 hxg5 Kd2 d5 Kd3 Kd7 b4 Kc7 e4 Kb6 h4 a6 c4 g4 f4 g3 h5 e6 c5+ Ka7 c6 g2 e5 Rh6 f6 Qe7 f5 Qb7 f7 Ne7 f6 Nd7 b6+ Kb8 b5 Qa7 b7 Ng6 Ne2 g1N Nec3 Be7 f8N Rh8 h6 Nh3 h7 Qc5 c7+ Ka7 b8R Nb6 Ra5 Qd6 Qe1 Nd7 Nd1 Bb7 Re8 Rb8 c8B Ba8 Rh2 Rb6 Rb2 Rg8 h8N Bd8 f7 Bg5 Nd2 Bf4 Ne4 Nf6 Nh7 Rf8 Rc2 Ng8 Nhf6 Bb7 Rc5 Qd7 Ke2 d3+ Kf3 d2 Bd3 d4 Bc2 d3 Nd5 Qd8 Bd7 Ba8 N1c3 d1N Nd6 d2 Ke4 Ne3 Nd1 Ng4 Bc6 Nh2 Bd7 N6e7 Ng6 Bb7 Nh4 Ng6 Nc3 d1N Bc6 Ne3 Nd1 Ba8 Bd7 Rc6 b6+ Kb8 b7 Rb6 N5c3 Ka7 Nd5 Rb3 Rab5 Qa5 Re7 Rb8 Re8 Qd2 Rb6 Rc8 Ba4 Rc6 Rbb5 Rb6 Ne7 Qf2 Rb4 Rb5 Kd4 Kb6 b8Q+ Bb7 Qa8 Bf3 Qe4 Ka7 Nd5 Rb6 Rbb5 Bg4 Qb4 Nef1+ Qe3 Qg2 Qee1 Qd2+ Ke4 Ne3
6r1/brP1NN1R/3Q2pB/2P1rRNk/1pB5/R1R2pQ1/2b1n1r1/q1n1r2K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 axb4 Kf2 d5 Kg2 f5 c4 Kf7 a4 b5 h4 f3+ Kh2 f2 e4 d4 h6 Kg6 h7 f4 c6 d3 c7 d2 a5 b3 a6 f3 e5 b2 a7 Kh5 e6 g6 e7 Nh6 e8Q Bf5 Ra5 Nd7 Nc3 b1R Qe5 Nc5 Nh3 Qd4 Qg3 Re8 a8R Nb3 Ng5 Bc5 Nd5 Qa1 Ne7 Rhg8 h8R Ba7 Rh7 Bc2 c5 Rb2 Bc4 f1R Ra3 Re1 Rg1 b4 Kh1 Re5 Re1 Rc8 Re3 Rb8 Rc3 Rb7 Rf8 Ra2 Rf5 Rb2 Qde1 d1R Bf4 Rdb1 Qd1 Nc1 Bd2 Bb3 Be3 Rg2 Qd6 Bc2 Qf2 Kg4 h5 Nf7 h6 Kh5 Qe1 Ne2 Bd2 Ng1 Qg3 Rbe1 Rg7 R5e3 h7 Ne5 h8N Nd3 Nhf7 Re5 Nh6 Qd1 Rh7 Nc1 Be3 Qd5 Bf4 Qf7 Be3 Qg7 Nhf7+ Qh6 Rd3 Re4 Bd2 Rg4 Ne4+ Rg5 Rf6 Nb3 Rc3 Re5 Rg7 Qe3 Bc1 Qe2 Bh6 Qd1 Rh7 Qa1 Neg5 Nc1 Rf5 Nge2+
rBBn2B1/1npbK3/1BR2q1n/3Rp2k/Q2n4/r1N3R1/1PN1PQpb/4n3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kf2 f5 h4 Kf7 d4 Kg6 h5+ Kh7 g6+ Kh6 d6 e5 g7 a5 b6 a4 d5 a3 d7 a2 b7 g3+ Kf3 Qe8 d8R Bd7 d6 Qe6 Be3 Nc6 b8B Qf6 Bh3 g2 Bb6 Ra3+ Nc3 Kg5 h6 Kh5 h7 Nh6 Rf1 a1N g8B Nb3 Rc1 Nba5 Rh2 Nb7 Bg4+ Kg6 Rh3 Be7 Rg3 Kg5 Kf2 f3 Ke3 f4+ Ke4 f2 Kd5 f1N Nf3+ Kg6 Bf5+ Kh5 Nd4 f3 Nc2 f2 Bfe6 Nh2 Bh3 Be8 Bc8 f1N d7 Nd2 Rd1 Nhf3 Rc1 Qh4 Ke6 Bc5 Nb1 Bg1 Nc3 Ng5+ Kf6 Nd4 Ke7 Nd6 Ba2 Rf8 h8Q Nb7 Qf6 N2f3 Bg8 Ne1 Qf2 Bh2 Rd1 Nb5 Rd6 Nd4 Rc6 Qf4 Rd6 Nge6 Rd5 Bg6 Re8 Bf5 d8Q Bg4 Qd7 Ned8 Qb5 Bd7 Qa4 Rf6 Rf8 Rc6 Rf6 Qg5 Bc5 Ra6 Bb6 Qf4 Rfg6 Ra8 Rc6 Qf6+
1bR3q1/RP4n1/1QB1QQnk/8/1BbN1N1n/1p4p1/PrpQ1R1n/4K1nr w - - 0 1 illegal: No proof kernel
4nNR1/P1QPrQBn/1KR3Nq/1p1b1pQ1/2BnQ1p1/rBb4k/1n6/1n6 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kf6 a4 Kg5 e4 Kh4 a5 c5 e5 g5 e6 b5 e7 f5 e8B b3 d6 b2 a6 g4 h6 c4 h7 c3 d5 f3 Ke3 f2 Kd4 c2 Kc5 Bb7 a7 Nh6 Nd2 b1N Nb3 Bg7 d7 Ng8 d6 Bf6 Qe2 Bg5 Ra6 Bd2 Bb2 c1N Rc6 Ne7 Bg7 Ng8 Qe4 Bf4 Bc4 f1N Nf3+ Kh3 Bef7 Bg3 Nh4 Ne7 Ng6 Ng8 Nd4 Bh4 Ne6 Nf6 Nef8 Ne3 Bfe6 Qe7 d8Q Ne2 Qc7 Na6+ Kb6 Re8 d7 Qd6 Bb3 Re7 Bec4 Nd1 Re1 Rg8 h8Q Nb2 Qh6 Nh7 Qg5 Nd4 Re2 Be1 Rc2 Bc3 Re2 Nf3 Re3 Kg2 h4 Rh8 h5 Kh3 Re2 Nd4 h6 Nf6 h7 Qe6 Qce5 Nc7 Rc2 Nce8 Qc7 Rg8 h8Q+ Nh7 Ne5 Qh6 Neg6 Nhf6 Qh7 Rh8 Qg8 Nh7 Qf7 Ba8 Qcf4 Bb7 Rc8 Bd5 Qc7 Bd2 Bd3 Be1 Rc6 Bc3 Bdc4 Nhf6 Rd6 Qh7 Qfe6 Be1 Nf4+ Kh2 Rc6 Nd6 Ba4 Qg6 Bd1 Rh3 Qf7 Ra3 N8e6 Bc3 Rg8 Nh7 Nf8 Qh6 N4g6 Kh3 Bdb3 Ne8
K2R1rr1/p2B1NPp/1B2Q1Rn/2N2bPN/1q4rB/6b1/1k1N1pr1/1r2Q1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 Kb4 Kd5 f5 g4 f3 e4 d6 c5 f4 b6 f2 b7 f3 g6 d3 g5 d2 c6 Qf6 e5 Be7 g7 Qf5 c7 Qf6 e6 Qc3 Qe1 Kb3 Ra6 d1R+ Nd2+ Kc2 b4 Qf6 b5 Kc3 b6 Qh6 Bh3 f1R Ne2+ Kc2 Nf4 f2 Nh5 Nd7 Kc6 d5 b8B d4 b7 Bd6 e7 d3 e8Q Rg1 Q8e6 Bg3 Ba3 Rc1 Bc5 Rb1 Bb6 Kb2 Bf5 Qg6 Rh4 Qe8 Rd4 Qe7 Rd6 Rg2 Bh3 Nf8 Rd8 Ng6 Qd7 Bd6 Ba5 Kc2 Nb3 d2 Rf8 Qe5 Qg4 Be6 c8N Bc5 Nd6 Nh6 Nf7 Qb2 Bg3 Nh4 b8N Nf3 Kb7 Rg8 Nd7 Ng1 Bh4 Bd6 Nc5 d1R Rb6 Rd3 Nd2 Qb4 Qge2 Rd4 Qa6 Ba2 Bd7 Bg3 Qae2 Bc4 Qe8 Bb5 Rg6 Kb2 Bb6 Bd3 Q8e6 Bf5 Rb8 Rg4 Re8 Rc8 Rf8 Rc7+ Ka8 Rb7 Bc8 Re7 Rd8 Ree8 Bd7 Ref8
6R1/1Q2Q1n1/1r1n1Nr1/1kN1B1R1/r2r3p/1PPbp2q/2Kb2Bp/N2nN2R w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 f4 a5 g4 e5 c3 d5 f6 Kd7 f5 a4 f7 h3 g5 d3 g6 h4 f6 e4 g7 a3 b3 d4 b6 Kc6 b7 h2 Qh5 a2 Bg2 Nd7 b8R Nh6 g8N Nf5 Kd1 d2 Qg6 Bh6 f8N Ba6 f7+ Nd6 Nh7 Qc8 f8Q Nf6 Qgg7 Qh3 Kc2 d1R Bf4 Nh5 Ngf6 Rg8 Be5 Bd2 Nf3 e3 Qfe7 Ra7 Rf8 Rb7 Ne1+ Kb5 Nd7 Rb6 Qgf7 Rg7 Nhf6 Rg6 Nc5 Ng7 Rg8 d3+ Kb2 Ka5 Na3 Bc4 Rb1 a1R Nac2 Ra4 Qb7 Ba6 Qfe7 Kb5 Ra1 Rd4 Ra4 Ra1 Rc4 Ra4 Na1 Bc1+ Kb1 d2 Kc2 d1N Rb4+ Ka5 Rc4 Bd2 Rb4 Rd3 Rg4 Rdd4 Rg5 Bf1 Bg3 Kb5 Be5 Bd3+
1n2b2R/1Rn2k1n/1q1b1N2/1B2KpQ1/3pb3/1r1p1P1N/rB1P1Q1N/5QnQ w - - 0 1 legal: proof: h4 e5 b4 g5 a4 gxh4 c3 b5 axb5 c5 bxc5 Ne7 Qa4 Ng8 Qd4 exd4 e4 h5 Ke2 d5 Kd3 a5 g4 f5 c4 a4 b6 a3 b7 a2 g5 h3 f3 h4 c6 h2 e5 h3 c7 Ra7 e6 Rh7 g6 Nd7 b8Q Rh5 e7 Ngf6 c5 Ra3+ Nc3 Bb7 c8Q Rh4 g7 Kf7 e8N Qb6 c6 Rb3 c7 Nh7 Rb1 a1N Bb2 Nc2 Qa7 Na3 Nf6 Nb5 Ng4 Bd6 Qh8 Nb8 c8Q Nc7 Qcd8 Bc6 Qg5 Be8 Qa1 Rh6 Qe3 Re6 Qf2 Re1 Qa6 Rc1 Qc4 Rc2 g8Q+ Ke7 Qg5+ Kf7 Ba1 Ra2 Bb2 Bc5 Ne2 Be7 Nf4 Bd6 Rg1 h1B Nh2 Bg2 Rh1 Be7 Be2 Bd6 Qa6 Bf1 Qc4 Rb4 Ne4 Rb5 Nf6 Rb4 Nhg4 h2 Nh3 Rb5 Rg1 h1N Nh2 Ng3 Rh1 Bg2 Bf1 Ne2 Qc1 Ng1 Be2 Raa5 Qcf1 Rb4 Ra1 Ra8 Ra7 Rb5 Rb7 Ra2 Bc3 Rb4 Bb2 Rb3+ Bc3 Rb5 Nf4 Nf8 Nhg4 Rb3 Qd1 Bf1 Qhh2 Bd7 Qhg2 Be8 Rh8 Nh7 Qh3 Rb4 Bb2 Rb5 Kc2 Rb3 Ba6 Be2 Qh1 Bf1 Nh3 Bd3+ Kc1 Be4 Qdf1 Nf8 Bb5 Nh7 Nh2 d3 Bc3 Ra5 Ba1 Rc3+ Kb2 Rc5 Kb3 Rc4 Bb2 Rb4+ Kc3 Ra2 Bc6 Qa6 Bb5 Rb3+ Kd4 Ba3 Nh5 Qb6+ Ke5 d4 Nf6 Bd6#
5qBn/bRN4r/n4b1k/3pRR2/2B1b2p/PQB4K/Q2P1Nrp/1nn1R3 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 cxb5 axb4 f4 Kf7 Kf2 Kg7 g4 e5 Kg2 d5 f6+ Kg6 b6 c5 g5 h5 f7 e4 b7 c4 Bb2 b3 Bc3 e3 Na3 b2 Nh3 b1N Nb5 e2 Nf2 e1B Nc7 Bc5 f8Q Na6 b8R Nh6 Rb7 Bf5 Qb3 Ba7 Qfa3 Be4+ Kh3 Qf8 f5+ Kh7 f6 Nf7 g6+ Kh6 g7 Rh7 g8B Nh8 f7 Rc8 Bb2 c3 Bc4 c2 Bc3 c1N Rg1 Rd8 Rg5 Rd6 Re5 Rg6 Qab2 Rgg7 a3 Rg2 Nd1 Bef2 Q2a2 Bfe3 Nf2 Bed4 Rg5 Bf6 Rf5 Qe8 f8R Qe7 Re8 Qf8 Ree5 Rg6 Kh2 h3 Rg5 Rgg7 Kg3 h2 Kh3 h4 Rgf5 Rg2 Bd4 Ne2 Bb2 Nbc3 Re1 Nb1 Bc3 Nc1
B4kb1/QN2r2B/rr2nbRN/2qp4/1pQn2n1/1PN1NP2/3rp2R/1K1B4 w - - 0 1 legal: proof: g4 c5 e4 a5 d4 cxd4 b3 f5 exf5 h5 gxh5 a4 Bb2 a3 Bc4 axb2 Bb5 Rh6 Bf1 Rh8 Kd2 b5 c4 d5 Kc2 e5 h4 g5 a4 g4 c5 g3 h6 b4 c6 g2 f3 e4 a5 e3 h7 Ra7 h5 Qc7 h6 Ba6 f6 Bc5 f7+ Kf8 Na3 b1N Rh2 Qe7 c7 Bd6 c8B Qe8 Qc1 Ra8 Bf5 Be7 Nc4 Qc8 Be2 Bf6 Bd1 Nd7 Ne2 g1R Nc3 e2 Ne3 d3+ Kb2 Bc4 a6 d2 a7 Qc5 Ra6 Bd3 Rc6 Re8 a8B Na3 Qa1 Nc2 Qa7 Rg7 Kb1 Rb8 Bg6 Rb6 Be4 Bd8 Rg6 Ngf6 Bf5 Rhg8 h8Q Ng4 h7 Bf6 Be4 Ba6 Bd3 Bc8 Bf5 Nd4 Bfc2 Ke7 f8N Ke8 Be4 Re7 Ne6 Nf8 Nd8 Be6 Nb7 Rgg7 Bd3 Bg8 Bf5 Rgf7 Qg7 Ra6 h8N Nfe6 Qh6 Rb6 Qf4 Kf8 Qe4 Rg7 Nf7 Ra6 Nh6 Rgf7 Nd6 Rb7 Qd3 Rfe7 Qc4 Rbb6 Nb7 Bg7 Rg5 Bf6 Bh7 Qd6 Bdc2 Qc5 Rg6 d1R+ Kb2 Rc1 Bd1 Rc2+ Kb1 Rd2
Q2KQN2/3r3b/3n2q1/2PR1PR1/2Br2bR/b1p1p1k1/n1rb1p2/1RB2QN1 w - - 0 1 illegal: No proof kernel
3k4/QQ1r2N1/2rq4/2PP1p2/nQR1bpK1/3p1rb1/3N1r1N/b1RnBBN1 w - - 0 1 illegal: No possible last move, all moves rejected
Qb1R1R1B/K4b1n/3r4/1Bp5/p1R2pPb/Q1r2B2/nP1Rr1Nq/1k2bN2 w - - 0 1 illegal: No proof kernel
1b1R2B1/4rN1b/N1KQ4/1np1pQ1q/3rb1nn/2P1RbP1/k3N1pB/3N1B2 w - - 0 1 legal: proof: b4 a5 e4 axb4 g3 g5 e5 f5 Qf3 g4 Qd1 f4 e6 dxe6 Ne2 e5 Ng1 e4 gxf4 g3 f5 g2 Nf3 Qd3 Ng1 Qg3 hxg3 Ra4 Nf3 Ra5 Ng1 Ra8 Ke2 Kd7 Ke3 Kc6 Kd4 h5 f4 e5+ Kc4 e3 d4 e2 a4 e1N a5 b3 f6 b2 f7 h4 f5 h3 f6 h2 a6 Bd6 f8N Nf3 f7 Nh6 a7 Ng4 Ra3 Nh4 Re3 Rh7 Nd7 Na6 f8Q Re7 Nc3 b1B Nc5 b6 Qf4 Bb7 Nge2 Rd8 a8B Rdd7 Rg1 h1Q Qf5 Qh3 Qdd3 Rd8 Nd1 b5+ Kc3 b4+ Kc4 b3 c3 b2 d5+ Kb6 Rh1 Ka5 Rh2 Nb8 Na6 Ka4 Qd2 Ka3 Kb5 c5 Rh1 Bc7 d6 Nc6 d7 Be4 Qd6 Bb8 Bd2 Rf8 d8N b1B Nf7 Rd8 Be1 Bf3 Bf2 Ka2 Bg1 Na7+ Kb6 B7e4 Bh2 Nb5 Bd5+ Ka1 Nh6 Bbc2 Bg8 Bcd3 Nf7 Ka2 Qde6+ Rd5 Kc6 Bc2 Qd6 Bb1 Qfd7 Bh7 Qf5 Bbe4 Bg1 Ng6 Rh2 Qh6 Rh5 Nh4 Bh2 Bg6 Bh7 Qg5 Rh6 Bh5 Rg6 Qh6 Rg8 Bg6 Rc8 Qh5 Bg8 Bh7 Rd8 Rd4+
Qnrk4/1B2nrR1/3r1nqp/p1Pp2Rb/3QBb2/P3B1R1/N3K3/1Nr3B1 w - - 0 1 legal: proof: e4 c5 d4 e5 h4 g5 dxe5 gxh4 b4 f5 bxc5 fxe4 f4 b5 g4 d5 c4 a5 g5 h6 c6 b4 f5 b3 c7 b2 g6 e3 g7 h3 f6 e2 f7+ Ke7 a3 h2 e6 Nf6 g8R Ne8 Bg2 Ng7 Be3 Ra7 Be4 Nf5 Rg5 Qe8 Qd4 Bd7 c8B Kd8 c5 Bd6 f8B Qg6 Bb7 Bf4 Bd6 Ne7 Kf2 e1N Ne2 Ng2 Nec3 Be8 Rg1 h1R Na2 Ra6 Be5 Rd6 Ke2 Rh5 Rg3 Rf5 Rg5 Rf7 Bg7 Ne1 R1g3 Nd3 Bg1 Nf2 Be5 Bd2 Bf4 Ng4 Bfe3 Rg8 Nbc3 Rgf8 Rf1 b1R Rff3 Rg7 Rf7 Rc1 Nb1 Rgg8 Rg7 Bf7 Bef2 Bf4 Be3 Qh7 Rf3 Bh5 Rg3 Rf7 Kd2 Nf5 Ke2 Qg6 e7+ Kd7 Qd2 Rc8 e8Q+ Kc7 Qd4 Ne7 Qc6+ Kd8 Qa6 Rf1 Qa7 Rc1 Qa8 Nf6+
4n1b1/2r1R1q1/1b3pb1/p4QP1/2b1p3/r2nN1KP/1RBBN1B1/k2rQ1QQ w - - 0 1 illegal: No proof kernel
4n3/BR3KQb/2RqpB2/bQ3P1B/1Bn5/Pp1k1p2/r1N2rnn/1Q1r1N2 w - - 0 1 illegal: No proof kernel
4B3/2B1r2k/Brn1p2p/r1Pp4/NQ1n2nq/5R2/1Q1PK1Bb/b2QR1rN w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 e5 gxh4 e6 Ba6 bxc5 b4 a4 Bb5 axb5 fxe6 Qf3 e5 Qd1 e4 f4 Kf7 g4 Kg6 c4 d5 f5+ Kg7 c6 a5 c7 h3 c8B e3 g5 e2 b6 e6 g6 a4 f6+ Kh6 f7 b3 b7 h2 g7 b2 Nh3 a3 Nc3 b1R Nf2 a2 Na4 Ba3 f8Q Nc6 b8Q Rb6 Ba6 Bd6 Bb2 Qh4 Bg2 Nf6 Rf1 h1R Be5 Rg1 g8B+ Kg6 c5 h6 Bf7+ Kh7 Be8 Ng4 Qf4 Bc7 Rc1 a1B Qb4 Rf8 Bg3 Rf7 Nh1 Re7 Rc3 Be5 Rf3 Bf4 Qe5 Raa7 Qeb2 Be5 Bf2 Bh2 Bg3 Ra8 Bb7 Ra5 Ba6 Nge5 Kf2 e1N Ke2 Nc2 Re1 Ng4 Bc7 N2d4+
B2Q1q2/2N2Bk1/B3p1p1/rnbP2nb/pB2P1Q1/1N1bK1R1/4nQr1/4R2b w - - 0 1 illegal: No proof kernel
1r3r1N/bn1NR2n/3P1R1B/ppN2n1p/2Q2Q2/2NP1q1k/1RK1B1bb/6b1 w - - 0 1 illegal: No proof kernel
1rq1n1Q1/1B1B4/K1prbB1N/1nbrp1B1/4Q2p/P2RPR1r/3R1Nk1/4b3 w - - 0 1 legal: proof: g4 a5 c4 g5 b4 d5 cxd5 axb4 h4 f5 hxg5 fxg4 d4 Kd7 Kd2 Kd6 Kd3 h5 Kc4 e5 Kb5 g3 f4 b6 f5 h4 g6 b3 a3 g2 f6 b2 f7 Bg7 f8R Nf6 Nh3 g1B Qa4 Ne8 Nc3 Bf2 Ra2 Qf6 Bg2 Qe7 Ng5 Qe6 Rh3 Be1 Rd3 Nc6 Nd1 Rb8 Nf2 Rh6 Rff3 Bf8 g7 b1R+ Rb2 Qg4 g8B Be6 Ka6 b5 Rbd2 b4 Bh3 b3 Nf7+ Kd7 d6 b2 Qc4 Na7 d5 Nb5 Qe4 Rf6 Nh6 c6 Bh7 Ra1 Bf5 b1R Bf1 Rb3 Bh3 Kd8 d7 Kc7 d8B+ Kd6 Bf1 Kc5 d6 Qh3 d7 Bd6 Bb2 Rd1 Bc1 Rg6 Bf6 Rc3 Qe3+ Kc4 d8Q Bc5 Rd6 Rd3 Qc8 Rg3 Qe4+ Rd4 Rd8 Qg4 Rdd3 Rh3 Bcg5 Rd2 e3 Rd1 Rd2+ Kc3 Qd7 Rd6 Qg7 Rd5 Qg8 Rd6 Rb2 R1d5 Rb3+ Kd2 Bd3 Bf7 Bd7 Be6 Bc4 Qf5 Rd3+ Ke2 Qd4 Kf1 Qe4 Kg1 Rd2 Rh1 Bf1 Qg4 Bh3 Rh2 Bc8 Qf5 Bb7 Rh1 Bg4 Rh3 Rd3 Kg2 Rd7 Bf7 Rd8 Qc8 Bd7 Be6 Rd1 Rd4 Rd2 Bc4 Bf5 Re6 Rd5 Rd6 Bd7 Rd3 Rd4 Be6 Rd5 Rc3 R5d4 Rc4 R4d3 Rcd4 Qf4 R4d5 Qd4 Kh2 Qe4 Kg2
5nNk/1N2r2r/RPpp1K2/2b3QQ/B2BP1qb/Q1bRB1n1/3p1nb1/7Q w - - 0 1 illegal: No proof kernel
2b2R2/KBq3Q1/P2r1Q2/3p2B1/P1NNn1Q1/B1b1pp1n/2B2k1b/1r2brR1 w - - 0 1 illegal: No proof kernel
bb2NK2/1b4n1/P1r1kB1R/p4RQ1/1pqnB2P/4pb1Q/1r3N2/R2nB2B w - - 0 1 illegal: No proof kernel
2qkn1Nn/b1r2R2/pBb4K/P4p2/8/N1BP1RNn/1p1Q1b2/R1rR2bQ w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g6 f5 Qd5 Be2 Qd6 fxg6 Qd5 g5 Qd8 Bg4 hxg4 Ke2 b5 Ke3 e5 a4 f5 c4 g3 h4 a6 a5 g2 g7 b4 d3 b3 g6 b2 c6 Bb4 c5 Bb7 c7 Qe7 c8R+ Qd8 c6 Nf6 g8N Nbd7 h5 Rh7 c7 Bc6 g7 Nf8 h6 Ng6 Ne2 g1N Ng3 Nh3 Qd2 Nh8 Rd1 Ra7 Rb8 Qc8 Na3 Kd7 Rb7 Ne8 Ne7 Ra8 g8R Rf7 h7 Bc5+ Ke2 e3 Ra7 Ng6 h8B e4 Bc3 Nh8 Rg4 Rb8 Ng8 Rb5 Rb7 Ba7 Rf4 Rc5 Rf3 Rg7 Qe1 Rf7 Qh1 Rg7 B1d2 Rc4 Bd4 Rc1 Bb6 Re7 Bc3 Rh7 Kf1 e2+ Kg2 e1B Kh2 e3 Kg2 e2 Kh2 Qa8 c8Q+ Kd6 Rf7 Bf2 Kg2 e1B Qc7+ Ke6 Qf4 Bg1 Qd2 Bef2 Ne4 Be3 Kg3 Rg7+ Kh4 Qc8 Kh5 Bef2 Ng3 Kd6 Rf8 Rc7 Kh6 Kd7 Rf7+ Kd8
Rrn2r2/b1r1QNQp/5n2/3QB3/BPNqP1Nk/1p2p1r1/1N3Rn1/K6b w - - 0 1 illegal: No proof kernel
1knB2Bb/2r2QQp/1N6/P1r2Rr1/Kp1r4/QpR1Qbq1/3N2bP/5R1n w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 g5 f4 gxf4 b4 e5 dxe5 axb4 Kd2 Kd7 Kc2 b5 Kb3 f5 a4 c5 e4 Kc7 g4 f3 a5 f4 e6 f2 e5 f3 d6+ Kb7 g5 Qc7 d7 Nh6 d8R Ra7 e7 Nd7 e8Q Nb6 g6 Ng4 e6 Qg3 g7 Kb8 g8Q Bg7 e7 Rc7 Bc4 f1B Bg5 f2+ Rd3 Bg2 Nf3 f1R Nc3 Nf2 Nd5 Rg1 Qef7 Bc3 Qgg6 Bb7 e8Q+ Nc8 Qe3 Rd8 Nb6 Bh8 Qgg7 Rd4 Rc3 Be4 Nd2 Bef3 Ka2 b3+ Ka3 b4+ Ka4 Rd8 Be6 c4 Qc1 Rd4 Bd8 Rc5 Qa3 Rc7 Rd3 c3 Rf1 c2 Rc3 c1R Bc4 Bh3 Bd5 Rg2 Rhg1 Nh1 Rf2 Rc5 Rgf1 Rg1 Rd3 R1c4 Rc3 Bhg2 Be6 Bb7 Rf5 Bbf3 Qfg6 Rc7 Bg8 R4c5 Q6f7 Rg4 Rf2 Rd1 Rf1 Rg5 Ndc4 Rdd5 Nd2 Rd4
1Q2q1r1/1BKb1kPP/rBN2b2/1nnppr2/RB2N1R1/6Np/n1Q2r2/7B w - - 0 1 illegal: No proof kernel
2Qb1R2/k1qn2p1/Bn6/4pRbK/BB2P2n/1r2NPp1/R1b1Q2r/1Bn3N1 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h5 g4 hxg4 Qd4 g3 Qg4 fxg4 b4 e5 h4 d5 e4 Kd7 Ke2 Kc7 c4 Kb7 b6 a5 h5 d4 c6+ Ka6 b7 a4 b5+ Ka7 b6+ Ka6 c5 g2 c7 a3 c6 a2 h6 g3 Kf3+ d3 h7 Bd6 Bd2 Qd7 Rh5 Ne7 Nc3 Bb4 Nd1 Nf5 Kg4 Be7 f3 Bd8 Bb4 Nh4+ Rf5 Qf7 Be2 Nd7 Ne3 Rb8 Bd1 d2 Ba4 Qc4 Kh5 d1N Bc2 Nc3 Bb1 Rg8 h8Q Nd5 Qh7 Rh8 Qh6 Nc5 Qh7 Be6 c8B Nd7 c7 Qc5 Nh3 g1N Qh6 Ne2 Ng1 Nc1 Qh7 Nf8 Bd7 Qa5 Ba4 Nd7 c8B Qc5 Qh6 Qc7 Rg5 Nc3 Rf5 Bb3 Qh7 Bc2 Qh6 Nd5 Qh7 Ra8 Qh6 Ra7 b8Q+ Rb7 Kg4 Ng6 Qh2 Rh3 Qf2 Nh4 Kh5 Rh2 Nd1 Ne3 Qe2+ Nc4 Ne3 Nc5 Be6 Nd7 Qc8 Bg5 Qd8 Rb8 b7 Ka7 Qc8 Ncb6 Bc4 Bb3 Bbd3 Bc2 Ba6 Bd8 Rb1 a1B Rb2 Bg5 Ra2 Bd8 Rf6 Bc3 Rf5 Ra8 b8R Bd2 Nd1 B2g5 Ne3 Bd1 Bb1 Bc2 Rf8 Nd5 Rb6 Rb8 Rbf6 Rb5 Rf5 N5b6 Bd2 Rb2 Bb4 Rb3
b2n2B1/1N1Nb1pr/1Rpr4/1rPRbb2/NQ6/1PNBk1p1/1q5R/K2Q2n1 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 Ke7 Kc1 Ke6 c4 Kf5 h4 Kf4 e4 d5 e6 a5 h5 a4 c5 d4 e7 a3 e8B a2 b6 d3 b3 d2+ Kb2 c6 b7 g2 h6 g3 e5 Qe7 h7 Qf7 e6 Qh5 e7 Ra4 Bf7 Qd5 e8N Qd4+ Nc3 Be7 Bd3 Nd7 b8R Ra5 Nd6 Ne5 Rb6 Rb5 Nb7 Nf3 Rh2 Nh6 Bg8 Nf7 Rb1 Qf6 Ka1 Nd8 Rb2 Qd4 Na4 Qe5 Rh5 Qe2 Rd5 Bf5 Qe1 d1B Qf1 Bc2 Qd1 Bb1 Rd2 Bc8 Rc2 Ne1 f3 Ke3 f4 Nf3 f5 Qf2 Ne2 g1R f6 Rh1 f7 Rh6 f8Q Ng1 Nec3 Rd6 Qf6 Qd2 Qh4 Qh2 Qb4 Qd2 Na5 Bb7 Rb2 Qc1 Rh2 Ba8 Nb7 Qd2 Bc4 Be4 Bd3 Bf5 Be6 Rf8 h8N Qg2 Nf7 Rh8 Ne5 Rh7 Bg8 Qc2 Nd7 Qg2 Ne2 Qf2 Kb2 a1B+ Kb1 Bd4 Nec3 Be5 Ka1 Qb2+
nq1Q4/2N2P2/bb1bK2r/k3BR1R/1n1pNp2/2N2B2/p2Q2QP/Nr1b3n w - - 0 1 illegal: No proof kernel
2k5/4BpQ1/Nn3nBN/Qbq5/2Pb3K/nNR2p2/Pnp1Brr1/B2b1R2 w - - 0 1 illegal: No proof kernel
2Q1nR2/nBn2p2/rQq4B/4pP1k/2rr4/R1b1NPRb/2N3pK/Q2r1R2 w - - 0 1 legal: proof: d4 h5 a4 c5 g4 b5 axb5 cxd4 e3 Qc7 f3 Qf4 exf4 hxg4 Kf2 e5 Kg3 a5 h4 d5 c4 g5 b4 a4 h5 d3 b6 d2 b7 d4 h6 a3 h7 d3 c5 a2 c6 Ke7 b5 Kf6 b6 Kg6 c7 Nc6 b8R Ra6 b7 Na7 Qe1 d1N Kh2 g3+ Kg2 g4 Be2 d2 Nc3 Nf6 Nd5 Nc3 Ne3 d1R Bc4 Rg8 h8R Rd4 R8h3 Ncd5 Ne2 Ne8 Rf1 Bb4 Kh1 g2+ Kh2 g1R Rg3 Bd7 c8Q Ndc7 Bd5 Bc3 Bd2 Rc4 Nd4 Kh5 Ndc2 Rgg6 Ra8 Rgd6 b8Q Be6 Bc6 Rdd4 Qb6 Bf5 Bb7 Be6 Rb1 a1Q Rb3 Qa4 Qa1 Qc6 Ra3 Bf5 Rf2 Rd1 Rf1 Bd3 f5 Be2 Rh1 Bf1 Rhg1 Bh3 Rf1 Rd8 Nd5 Rd6 Bh6 Rd7 Nde3 R7d4 Rb8 Qd5 Qd7 Nf6 Rf8 Nfe8 Rg2 Qe6 Qc8 Qc6 Rd2 Rf4 Rd6 Rfd4 Rg6 g3+ Kh1 g2+ Kh2 Rh4 Rg3 Rhd4
b1r1R3/1N2P3/p2rnPNB/Q2r2QR/pb6/1BQ1p3/n2b1RQ1/b2qk1K1 w - - 0 1 illegal: No proof kernel
k3NB1Q/B3p2q/2n1b3/3n1R2/R1P1B1bp/2bP1r2/3rRpN1/1rr2RKQ w - - 0 1 illegal: No possible last move, all moves rejected
2b2n1q/3PKQP1/Bpk1pn2/1n6/4Rr1N/2pN2rb/1b1B2QB/n3NNR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 c5 Kf4 h5 Kg5 e6+ f6 h3 f4 b3 g4 h2 d4 h4 a4 c4 a5 c3 a6 h3 d6 b2 f5 b6 d5 Qe8 a7 Qf7 Nd2 b1B Ngf3 Be4 Ne1 Nc6 Ra4 Nb4 Qf3 Rh6 Rg1 h1N Ba6 h2 Nf1 Rh3 Bd2 Rb8 a8Q Qe8 f7 Qe7+ f6 Bf5 Qf2 Nc2 Re4 Rd3 Qa7+ Rb7 Qg2 Rc7 Qb7 Qe8 Qa7 Be7 f8B Rg3 Bh6 Bf8 f7 Ne7 Kf6 Na1 g5 Bh3 g6 Nf2 g7 h1N Bhf4 Ng6 Be5 Nd3 Bef4 Nc5 Be5 Nb7 Bef4 Kd8 d7 Ba3 f8N Rc4 Be5 Nd6 Qb7 Ne7 Ng6 Qh8 Nh4 Bb2 Bef4 Ng6 Be5 Re3 Bh2 Nb5 Kf7 Ng3 Qa7 Bb7 Kf6 Kc7 d8N Rd3 Nf7 Nf8 d6+ Kc6 Ke7 Bc8 Qb7+ Kc5 d7 Nh5 Ne5 Rg3 Qb8 Kd5 N5d3 Nf6 Qf4 Kc6 Qf5 Rc5 Qg6 Rf5 Qf7 Rf4
4nQ2/2RpQ2p/Pb2Q3/nN1PKn1R/b1B1B1q1/1p2bN2/1N2N3/kn3r1r w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 c5 b4 axb4 Qf3 c4 Bb2 c3 Qd1 cxb2 Ke2 Kf7 Kd3 b5 Ke4 e5 g4 b3 a4 b4 d4 Bh6 f4 Ne7 c4 Nec6 f6 Ke6 a5 Qf8 a6 Na5 g6 Qg8 c5 Nbc6 g5 Bb7 g7 Rf8 f7 Nc4 g6 N6a5+ c6 Ne3 f5+ Kd6 d5 Kc5 c7 Bc6 c8N Ba4 f6 Re8 f8N Re6 Bh3 Kc4 Nd2+ Kc3 f7 Bg5 Bf5 Bd8 Rh4 Bb6 Nd6 Re8 N2c4 Re7 Kf3 e4+ Kf4 Re5 Bg4 Rh5 Be2 Rh6 Ne6 Rh5 Rg4 Rh1 Qe1+ Kc2 Qh4 Kc3 Ng5 Kc2 Ra2 Kb1 f8Q Qe6 Qf6 Rf8 g8Q Rf7 Rg2 Qg4+ Ke5 Rf8 Qfh8 Rf1 g7 Nf5 Qe6 e3 Qhe8 Ng3 Rh2 Nf5 Bf3 e2 Nb5 e1B Ne2 Bef2 Qf8 Bfc5 Ra1+ Kc2 Rd1 Be3 Rd2+ Kb1 Rc2 Ka1 Be4 b1N Rc3 b2 Nf3 b3 Qhe7 Bd8 Rh5 Bdb6 Bd3 Nd2 g8B b1N Bf7 Nh4 Nb2 Ne4 Rc7 Nd6 Bc4 Ne8 Bg6 Qh3 Bf5 Qg4 Be4 Nf5
R1rbqk2/2Ppn3/5B1p/p3QRPB/2rQ1b2/1b4R1/N3b3/K1NN1rRn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 b4 e5 c4 h3 Kc2 h2 Kb2 h6 g4 d3 f4 d2 c5 e4 b6 e3 g5 e2 b7 e1B c6 Be7 b5 Rh7 b6 Ra7 f6 Ra6 f7+ Kf8 f5 Ra8 Be2 Bf6+ Nc3 Be7 Ra3 Na6 b8Q Bb4 b7 Nc5 Qe5 Nf6 b8N Rg7 c7 Rg6 Na6 Ng8 Ka1 Rc6 Bb2 Qe8 Bh5 Ne4 Nge2 Rc4 Rg1 h1R Nc1 Be7 Nb4 Bd8 Nba2 Bg3 Qg4 Rb8 Nd1 Nf2 Qgd4 Bf4 Rag3 Bb7 Bc3 Rc8 Bb2 Bf3 Bc3 Bf6 Bb2 Be2 Bc3 Kg7 f8R Ne7 Bb2 Qg6 Rd8 Qe8 Bc3 Kf8 Bb2 Bg7 f6 Bh8 f7 Bf6 R1g2 Rf1 Rg1 Kg7 f8R Nh1 Nf2 d1B Bc3 Ba4 Nd1 Ra8 Rb8 Bb3 Rb5 Rd8 Rb8 Rc8 Ra8 Nd5 Rf7+ Kg8 Bb2 Bd8 Rf5 Ne7 Ba3 Nd5 Bf8 Ne7 Bg7 Re1 Bh8 Rf1 Bf6 Kf8
R2K1bR1/1rp1N2Q/4qn2/1BRrBN2/2RQ2b1/p1npP3/2B1Prn1/4kr2 w - - 0 1 illegal: No proof kernel
5B2/1P6/n4RP1/4Rbk1/KQ1N1npb/1r2rBr1/n1Qp1p2/1QNq1NnQ w - - 0 1 illegal: No proof kernel
3B1bB1/QPn1Q1n1/1Qp2n1k/N2Bp1r1/n1BRb1bP/4R3/K2Np3/1r2q3 w - - 0 1 illegal: No proof kernel
1B3Q2/1p1Rr2N/6b1/p2pNQ1b/r1n1bQRB/2P4K/nBBP3q/2n2n1k w - - 0 1 illegal: No proof kernel
br1kn3/1p2p1Bn/4BR2/P1b1pN1r/3BK1PQ/1Q2Rqr1/r3Q1b1/1N4B1 w - - 0 1 illegal: Other
4q3/PbBK3n/1R1P2rb/NN1n4/pp2Rnp1/2B2n1Q/k3Br2/1bQQ1B2 w - - 0 1 illegal: No proof kernel
n5R1/1Nn1knQB/K4rb1/R1p1p1P1/5QBp/3Qn2P/1q3rqb/3NQ2B w - - 0 1 legal: proof: e4 a5 c4 f5 f4 g5 b4 d6 bxa5 d5 Bb2 Bg7 Be5 Bf8 cxd5 fxe4 f5 Na6 Bd6 Nb8 Bf4 gxf4 Ke2 h5 d4 c5 a4 e5 g4 b5 h3 e3 Kd3 h4 a6 b4 Kc4 f3 Kb5 f2 f6 e2 a5 e1Q f7+ Kd7 a7 b3 a6 b2 d6 Qe8 d5 Kd8+ d7 Nh6 Na3 b1N Ne2 Ke7 d6+ Ke6 Nc4 Nc6 d8Q Nb4+ d7 Nd3 Ra5 Qd2 Qc7 Ke7 Rg1 Nf4 Nc3 Ne6 Bd3 f1N Qe1 Ne3 Nd1 Qg2 Nd6 Nd2 Bh7 Ndc4 Nb7 Rb8 a8B Nb6 a7 Bg7 Bd3 Rf8 Ka6 Bf6 Bb1 Bg5 Bh7 Qb2 Rg3 Bf4 Rg2 Bh2 Rg1 Kf6 d8Q+ Qe7 Qd4 Qd6 Qdc3 Qdd2 Qd3 Qf2 Qcd7 Qg2 Qa4 Ke7 Qac4 Rd8 Qf4 Rd6 f8Q+ Kd7 g5 Nf7 Qg7 Ke7 Rf1 Bd7 Rf3 Rf8 Rf2 Qb1 Rfa2 Qbb2 R2a4 Bc6 Rd4 Bf3 Rd5 Rc6 Rd8 Be4 Rc8 Rh8 Rg8 Bg6 Nd8 Rd6 Bf3 Rc6 a8B Rd6 Bac6 Na8 Qdc3 Rd2 Qd3 Re2 Nb7 Rf2 Rc8 Rd8 Bg4 Rd6 Rf8 Nd4 Rb8 Rf6 Rg8 Ne6 Be4 Qg3 Bh1 Qf3 Qg1 Qg2 Qe1 Nec7+
rNB4K/2RQ2N1/1NR1q3/bpQb1p2/4pR2/5Pk1/nnr1P1bb/3q2RB w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 cxd5 h5 gxh5 c5 Nh3 c4 Bb2 c3 Ng1 cxb2 h4 Kd7 d4 Kd6 Kd2 b5 Ke3 g5 Ke4 e5 a4 b3 a5 f6 a6 g4 h6 g3 h5 g2 a7 Be6 h7 Na6 h6 Nc7 Nh3 g1B Ng5 Be7 Na3 b1B+ Qc2 b2 Rh4 Bf8 Nc4+ Kd7 d6 Bh3 d5 Be7 Ne6 Bg2+ Kf5 Qf8 Kg6 Na6 Nb6+ Ke8 Ng7+ Kd8 d7 Nc5 Rf4 Kc7 d8N Kd6 Nc6 Bh2 Nb8 Nd3 f3 e4 Qc5+ Ke5 Ra6 Bh3 Bg2 f5 Bh1 Nf6 d6+ Nd5 d7 Qg8 d8Q Bg2 Qd7 Bd8 Ra1 Bc2 Rc1 Bc7 Rg1 Qc8 Kf7 b1Q Kg6 Rd8 h8R Qd1 Kh7 Bb3 Rf8 Ba2 Kh8 Nb2 h7 Qa6 Rg8 Rc8 Rf8 Bd8 Rf6 Bc4 Rc6 Qa2 Qe3 Nc3 Qc5+ Bd5 Na6 Rab8 a8B Qc4 Rc7 Na2 Bb7 Ra8 Nb8 Qcb3 Ba6 Qc4 Ra7 Rc7 Bc8 Rc6 Rc7 Qcb3 Qf2 Rc2 Qc5 Qc4 Qe3 Qc6 Qc5 Qe6 Rh4 Bg5 Rh6 Qd6 Re6+ Kf4 Kg8 Ra3 h8R Ra8 Rh4+ Kg3 Kh8 Bd2 Rf4 Ba5 Rh6 Qe7 Rhc6 Qe6
4q1nB/1R1RR3/QK2bB1P/1pn1p1p1/2qB1bP1/1Q3b1N/br3Br1/5N1k w - - 0 1 illegal: No proof kernel
K3r1k1/bRqb4/Q2Pn2P/R5pp/6N1/Nq1R1BN1/qNQ1pB2/2n2qr1 w - - 0 1 illegal: No proof kernel
1q1N1rQB/b3R3/2QpR3/1bbPq2p/1p1NPkBQ/1Rb3n1/1Q3r1K/3n4 w - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 a6 b4 g4 b5 axb5 h3 bxc4 hxg4 c3 g5 Be7 Ba3 Bc5 Bc1 Bf8 Kf2 Ke7 Kg3 Ke6 e4 c5 d4 f5 a4 b5 g6 h5 d5+ Ke7 e6 Kf6 e7 Ke5 e8R+ Ne7 a5 b4 a6 c4 g7 f4+ Kh2 c2 g8Q f3 g4 c3 g5 f2 a7 Na6 g6 Nc7 g7 Nb5 Qe1 Ba6 Nh3 Qb8 Be2 f1Q Ng5 Qf6 Bb2 c1B Ne6 Bd2 Qh4 Nf5 Na3 Bc5 Rhb1 d6 Bg4 Ng3 Nd8+ Kf4 Nc2 Qe5 Nd4 c2 Re6 c1B Ra5 Rh6 Qh8 Bc3 g8Q Be3 Ba1 Rf6 Rb3 Bcd2 Qhg7 Nc3 Rb5 Bf2 Rb7 Bb5 Rbe7 Nd1 Q7h8 Bc3 Qhg7 Qb7 Bb2 Rc8 a8Q Qb8 Qc6 Rf8 Q7h8 Rc7 Ba1 Ra7 Qhg7 Ra2 Q7f7+ Ke3 Qhg5+ Qf4 Ne2 Ba7 Qh4 Qg5 Rb1 Bce1 Bh8 Qe5 Rb3+ Bc3 Qf5 Kd3 Qfg5 Bfc5 Qc1 Rb2 Qc2+ Ke3 Nd4 Kf4 Qg2 Rd2 Qe2 Rd3 Qa2 Rf3 Qb2 Rf2+
1q2R3/2bB1BN1/2Kp1r1r/pN1P3r/Pn3kpB/1Qq1b3/2QR3n/3B2Qr w - - 0 1 illegal: No possible last move
1R1BK3/b3bNk1/2pN1p1q/q2p1Q1R/QB1qrn2/1Q1P1rN1/5P2/1n2qQ2 w - - 0 1 legal: proof: e4 b5 c4 h5 g4 d6 gxh5 Kd7 b4 a6 e5 Kc6 e6 Bd7 exd7 Kb7 Bd3 Kc6 Bc2 Kb6 Ba4 bxc4 b5 Kc5 b6 Kd5 Bb5 axb5 Ne2 Kc5 Ng1 Kc6 Ke2 Kd5 Ke3 Ke6 Kf4 Kf6 h4 g5+ Kg4 e5 a4 e4 a5 d5 h6 c3 Kh5 c2 a6 g4 a7 e3 h7 e2 d3 e1Q b7 b4 Bh6 c1Q Bf4 b3 Ra6+ c6 Bd6 g3 Bb4 b2 Nc3 b1Q Rb6 g2 Ne4+ Kg7 Nd6 f6 Ne2 g1B Ng3 Na6 b8Q Qa1 Qb3 Qa4 Qc8 Nc5 Rb8 Qda5 d8B Ne4 Qf5 Ne7 Rh2 Rg8 h8N Nd2 Nhf7 Ng6 Rh3 Be7 Rh1 Kf8 Kh6 Nf4 h5 Bh2 Kh7 Bg1 h6 Nb1 Rh5 Rg4 Kh8 Bh2 h7 Rh4 Rb7 Rc8 a8Q Rh3 Rb8 Qa1 Qa6 Qd4 Qac4 Ng2 Qb5 Qh6 Q5a4 Nf4 Nc4 Ke8 Kg8 Rc7 h8Q Rd7 Ne4 Rf3 Ng3 Rd6 Qg7 Re6 Qgg4 Re5 Qh3 Re4 Qf1 Ng6 Nh1 Bhd6 Ng3 Bc5 Qc2 Ba7 Qc3 Qhd2 Qcb3 Nf4 Kg7 Ng2 Kg6 Kf8 Ncd6 Kg8 Nh6+ Kh8 Kf7 Nf4 Ke8 Kg7 Nhf7 Ng2 Qba3 Qh6 Q3b3 Nf4
1b1B4/rB2qk2/pRnQNb2/2bB1N2/r5p1/p5B1/n1PbQRP1/3K1R1q w - - 0 1 illegal: No proof kernel
Bnb5/5K1k/p1qRRQ2/p1NpR1rr/6b1/1Pn4P/B2Q2Nq/2bbB1B1 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 fxe5 b6 d4 cxd4 a4 Qe7 a5 bxa5 Bd2 Qg5 Bc1 Qd8 Kf2 g5 Kf3 d5 e4 f5 c4 Kf7 e6+ Kg7 c5 g4+ Kf4 d3 Ke5 a6 e7 d2 e8R g3 c6 g2 c7 f4 h6+ Kh7 Bc4 f3 Ba2 f2 b3 f1B Nf3 g1Q Nc3 Qd7 Ne1 Bc5 Na4 Ba3 Nc5 Bb4 Ng2 Kg6 h7 Bb7 c8B Qd8 Ke6 Kh6 e5 Qb6+ Kf7 Qd4 e6 Qe5 e7 Bc4 h3 Nc6 Re1 Qb8 Rd8 Qh2 e8Q Be2 Qe5 Bg4 Rd6+ Nf6 Qde2 Rg8 h8B Ba3 Bb2 Qb5 Bd4 Rg5 Bg1 Qb6 Rad1 Bc1 Qb2 Qc7+ Qe7 Rh5 Ree6 Kh7 Rde1 Ne4 Bc3 d1B Re2 Qb6 Be1 Nc3 R2e5 Qc7 Bd7 Rg8 Qd2 Nb8 Bc6 Bc8 Ba8 Qc6 Qf6 Rgg5
1Bq4r/N3r1nP/1N2R1Q1/2r1QQnR/pbp1rp1P/kq6/6B1/N1Kb1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Kd7 Kd2 Kd6 b4 a5 e4 g5 h6 f5 h7 c5 d5 a4 b6 f3 e5+ Ke7 d6+ Kd7 b7 Kc6 d7 Kb5 e6 g4 e7 f2 e8Q g3 Qg6 g2 Nf3 g1R Qc2 Rg4 Bg2 f1Q Ne1 Na6 b8N Nc7 h3 Qe8 d8N Re4 Nd7 Qf3 Nc6 Qb3 Nb6 c3+ Kd1 c4 Bf4 Ra5 Nd2 Ne6 Bb8 f4 Kc1 Ne7 Nf1 Nf5 Rb1 Ng5 Na7+ Ka6 h4 Rc5 b5+ Ka5 Qd3 Bb7 Nc2 Ng7 Na1 Kb4 Rb2 Re7 Qdf5 c2 Rh3 Ka3 Re3 Qc8 Re6 Bf3 Rb1 Qb4 Rb2 Bd1 Rb3+ Ka2 Rd3 Qb3 Rg3 Ne4 Rg5 Ka3 Rh5 Ng5 Nd7 Rc6 b6 Rc7 b7 Rc5 Rf6 Re4 Nb6 Be7 Re6 Bf8 Be5 Be7 b8Q Bf8 Kd2 c1R Bc7 Rb1 Be5 Rb2+ Kc1 Rd2 Qc7 Rd7 Qd6 Rb7 Qd4 Rf7 Bb8 Bd6 Qde5 Re7 Qg4 Rb5 Qh3 Bb4 Qhf5 Rc5
3N1r2/2n2qqP/N2B3Q/n2pQN1b/n2K2B1/b1p1r1P1/2N1R1pk/1Q1R3n w - - 0 1 illegal: No proof kernel
2n3b1/Nn1rQ1BP/7K/1QP1N1Bp/nRq2n1p/2b2B1k/q3Rp2/4NN1r w - - 0 1 illegal: No proof kernel
3b1n2/BR1Q3p/1r1q2B1/1pR1qP2/2N1Q1rk/rRnr1P2/1N1KB2p/5bR1 w - - 0 1 illegal: No possible last move, all moves rejected
Nn1K3B/3bRBqp/3bB1pP/2B5/1Q1bbQ2/nr1q1r1p/6PR/1kNN4 w - - 0 1 illegal: No proof kernel
1B1NK1B1/1nb2P2/1b1p4/1q1p1bRQ/q1kp1bBr/Q7/N2R1PR1/r5nB w - - 0 1 illegal: No possible last move, all moves rejected
2r1BB1R/1N1PbK2/3q1p2/1P1N2BN/2n1qb2/p1Q2n2/bRQpr2k/1b5B w - - 0 1 illegal: No proof kernel
2b5/2BPpKr1/4rQ2/1q4Q1/bq1Q4/2nRPB1k/Q1N1p1pn/1bbN1R1N w - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 f5 b4 axb4 e3 h5 gxh5 f4 Qe2 f3 Kd1 fxe2+ Kc2 Ra7 Bg2 Ra4 Bf1 Ra8 Kd3 Kf7 Kc4 Kf6 a4 Kf5 f4 Kg4 d4 g5 h4 c5 f5 b3 h6 b6 a5 b2 h5 Na6 d6 b5+ Kd5 b4 f6 b3 d7 c4 Ke6 c3 d5 c2 h7 Bb7 d6 Bc6 h6 Nc5+ Kf7 Bg2 a6 Ne6 a7 Qb6 d8Q Qb5 d7 Bc6 Bg2 Bb7 Qa5 Nf4 Nh3 Bc8 Nc3 b1B Bb2 c1Q Rd1 Nd5 Rd3 Qe1 Nd1 Qeb4 Be5 b2 Bc7 Nc3 Nhf2+ Kh4 Bc6 g4 Nh1 g3 Bf3 g2 Qa2 Rb8 a8Q Kh3 Q8d5 Bg7 Qg5 Bc2 Rd2 Ne4 Nc3 b1B Ke8 Ba4 f7 Qd5 Qf5+ Kh4 f8N Bbc2 Rd3 Rb6 Ne6 Ngf6+ Kf7 Rg8 h8Q Ng4 h7 Nh2 Rf1 Bb1 Nd1 Qdb5 Nd4 Re6 Nc2 Bb2 Qd4 Bc1 Qfc5 Kh3 h8Q+ Rh6 Qcd5 Nc3 Qg5 Rg6 Qhg7 Re6 Q7e5 Rhg6 Qef6 Rg7+
RQ1bB3/3p2p1/b5r1/npRn1qr1/QP6/N3KP1Q/k2N3n/1n1BN1Qq w - - 0 1 legal: proof: g4 c5 e4 a5 d4 cxd4 b3 f5 exf5 h5 gxh5 a4 Bb2 a3 Bc4 axb2 Bb5 Rh6 Bf1 Rh8 Ke2 Kf7 a4 b5 h4 e5 c4 d3+ Ke3 e4 a5 d2 b4 Ne7 f6 Ke6 h6 Qe8 h5 Na6 f7 Rb8 h7 Rb6 h6 Rd6 c5 Kd5 c6 Ng8 c7 Bb7 c8N Nc7 a6 Na8 a7 Rb6 Bd3 Ba6 Na3 b1N Rh5+ Qe5 Qa4 d1Q Nd6 Qf1 Ndc4 Qf5 Nf3 Ne7 Ncd2 Nc7 a8B+ Nc6 Ne1 Be7 f8Q Qh1 Qb8 Bd8 Bb7 Re8 h8Q Re7 h7 Re5 Bc8 Na5 Bb7+ Rc6 Rg5 Qg4 Rh5 Rg5 Be2 Qf5 Bd1 Ke5 Ra2 Rcg6 Bd5 Kd6 Bc4 Kc6 Bf7 Nd5+ Ke2 e3 Be8 Bb7 Qh2 Ba6 Qg1 Kd6 Ra1 Ke5 Qg8 Kd4 h8Q Kc3 Qe6 Kb2 Qf8 Qf7 Qh3 Qf6 Kd3 e2 Qd6 Qf4 Qb8 Qf7 Rh4 Qe6 Rc4 Qf5+ Kd4 Ne7 Rc5 Nd5 Nec2 e1N f3 Ng2 Ne1 Nge3 Rc1 Ng4 Rc7 Ndf6 Rc5 Nh2 Ke3 Nc3 Rc1 Ka2 Rc8 Nb1 R1c5 Qd5 R8c7 Qf5 Ra7 Rh6 Ra8 Nd5+ Kf2 Rhg6 Ke2 Ne7 Ke3 Nd5+
qn4Qb/B1P1r3/n1r1p1BN/2RpP3/1k1BKQ2/b6p/3q2N1/1nRBQn2 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 a5 Kd3 h5 f4 d6 e4 Kd7 b4 a4 c4 e6 e5 a3 c5 h4 b6 Kc6 b5+ Kd5 g5 h3 f5 a2 f6 Bg7 f7 Rh4 f8Q Bh6 c6 Kc5 c7 Ra3+ Nc3 Qc8 b7 Ra6 b6 Bg7 g6 Kb4 Nb5 Nf6 Be3 Rh7 Rc1 a1Q Be2 Qa2 Nf3 g1N Ne1 g2 Rc5 Bh8 g7 Ne4 g8B Re7 Qf4 Nf3 Bh7 g1B Bg6 Nfd2 Ng2 Nf1 Qc1 Bf2 Bd1 Be1 Rg1 Bc3 Qb1+ Bb2 Qa1 Ba3 Qc1 Nc6 b8B Qd8 Ba7 Nb8 b7 Rc6 Bf2 Qb2 Qce3 Qc1 Qe1+ Qc3+ Ke2 d3+ Kf3 Qd2 Nd4 Qe8 Nf5 Qc8 Rc1 Qd8 Bad4 Nc5 Nh6 Nca6 Bfe3 Nd7 Rc2 Qa8 Ke4 Ndb8 Rc1 Qc3 Ba7 d2 Bed4 Qb2 Rc5 Qc3 Be2 d1N Rh1 Qd2 Bf3 Nde3 Bd1 Nc4 Rg1 Bb2 Rh1 Na3 Rg1 Nb1 Rh1 Nd7 Rg1 Ba3 b8Q+ Nb6 Qbf8 Nd7 Qg8 Ndb8 Qeg3 Qe1+ Be2 Qd2 Qgh4 Ne3 Rgc1 Nf1 Bd1 Re8 Qhf2 Re7 Qe1 d5+
nrRQ1QB1/1kP5/p3qbn1/1N1q1r1R/8/R1Npb1P1/p1bb2QQ/4K1B1 w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 g5 h4 f5 hxg5 fxe4 a4 bxa4 f4 d5 b4 Kd7 c4 Kc6 b5+ Kb7 b6 h5 g3 e5 g6 a6 g7 a3 f5 e3 f6 e2 f7 a2 Qb3 e4 Bf4 d4 Qb2 h4 Kd2 h3 Be3 h2 Na3 Qe8 Rc1 Be7 f8Q Bf6 Ke1 Qe6 Nb5 Nd7 Rc3 Rh5 Ra3 Ne7 g8Q Ng6 Qh7 Rb8 Bh3 Rf5 c6+ Ka8 c7 Kb7 c5 d3 Kd2 e1B+ Kd1 Bec3 Ne2 Bd2 Nec3 Bc1 Bg1 e3 Ke1 e2 Qd2 Nde5 Qh5 Bd7 c8R Bc6 Qd8 Nd7 Bg4 Bd5 Qb2 Bb3 c6+ Ka8 c7 Kb7 Qh3 Bc2 Qh6 Kc6 b7 Nb6 Qh3 Na8 Bh5 Nf4 Bf7 Ng6 Qf8 Be3 Bg8 Bc1 Bf2 Be3 Qg2+ Kb6 Rf1 h1Q Bg1 Qh5 Rf4 Qf3 Rh4 Qfc6 Qbb4 Qcd5 Rh5 Kc6 Qh4 Bc1 Qf3 Be3 Qh2 Bc1 Kf2 e1B+ Kf1 Bf2 Qfg2 Bfe3+ Ke1 Kb6 Re8 Rd8 b8Q+ Kc6 Qc8 Kb6 Qd7 Rb8 Rc8 Kb7 Qdd8 Bcd2+
2b1Q3/1Bp4b/2PR3n/3Q2nN/b3P2N/1N1pq2k/3KNQpb/1r1Br1Rq w - - 0 1 legal: proof: f4 b5 g4 g5 a4 e5 axb5 h6 d4 Bc5 dxe5 Bd6 Bd2 Bf8 Bb4 Nf6 Be7 gxf4 g5 Ng8 g6 Rh7 Bh4 Rh8 Bg5 hxg5 b4 Ke7 h4 Ke6 c4 Kf5 h5 Kg4 b6 d5 b5 a5 b7 f5 g7 f3 c5 a4 e6 d4 b6 f4 e7 a3 e8B f2+ Kd2 f3 h6 a2 c6 Bd6 e3 Na6 b8Q Bh2 h7 Nc5 b7 Qe7 Qa7 Nh6 g8N Rb8 Ba6 f1B Ne2 f2 Rg1+ Kh3 Bh5 g4 Nf6 Re8 h8N g3 Ng6 g2 Nh4 Ne6 Qb3 Ng5 Qd5 Qe5 Bf3 Re7 Nh5 Qg3 Kd1 Re6 Nd2 Re5 Rb1 a1Q Nb3 Re7 Kd2 Re4 Nc3 Bb5 Bd1 f1B Ne2 Ba4 Qac5 Re8 Qf8 Qe5 Qf2 Qf4 Nec1 Bfb5 Ne2 Bd3 Rc1 Qe5 Rc3 Bh7 Rd3 Ra8 b8Q Qg3 Qb4 Rb8 Qe7 Rb4 Bb7 Rb6 Nbc1 Rb1 Nb3 Qf4 Qf8 Re7 Qe8 Qg3 Rc3 d3 Rc4 Qh8 Rd4 Be4 Qdg8 Qg7 Nc3 Qf6 Rd6 Qe6 Re1 Bh7 Qgf7 Qe4 Qd5 Qgf3 Qe2 Qf1 Qf2 Qh1 Rg1 Qf3 e4 Rf7 Ne2 Rf6 Qe1 Qe3+ Kc3 Rf1 Qf2 Qc5+ Kd2 Re1 Nbd4 Qa7 Nb3 Qe3+
8/k1prpBQ1/rRn2qKB/5r1n/pP2Nq2/b1QP1Q2/2b1Rr2/3R2RN w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kf4 h5 Kf5 e3 f4 a4 b4 h3 g4 h4 b6 h2 g5 e2 b7 e1Q g6 h3 d6 Kc6+ d7 Kb6 g7 Qe5+ Kg6 Na6 b8R+ Bb7 f5 Qd6+ f6 Qf4 f7 Ka7 Nc3 Nf6 g8Q Nh5 Qc2 Bg7 Bc4 Qf8 Ne4 Bb2 d8R Ba3 Ra2 Bc8 Rb6 Nb8 Rb2 Nc6 Qc3 Ba6 Bd5 Bd3 Qgg7 Bc2 Ne2 Rh7 Re1 h1R Ng3 Rf1 Nh1 Rf2 Rg1 h2 Rd6 Qh8 f8Q Rd8 Qf5 Rd7 Bf7 Qf8 Qg4 Rh8 Qgf3 Rg8 Ng3 h1R Rd5 Rhh2 Nh1 Rh8 d3 Rf1 Rb1 Rhf2 Re5 Rg8 Kh7 Qf6 Bh6 Qf4 Rd1 Qf6 Qh8 Rg6 Qg7 Qf4 Nc5 Rf6 Re2 Rf5 Ne4 Ra5 Bd5 Ra6 Bf7 Qf6 Qfg4 Rf5 Qh3 R1f2 Qf3 Qh4 Kg6 Qf4 Qh7 Qh8 Qg8 Qhe5 Qg7 Qf6+
BN1b1k1B/1P4nR/5p2/3nKRQ1/q1RpbRrn/1NB4P/1Q1nr1qp/8 w - - 0 1 illegal: No possible last move, all moves rejected
4b2q/1PbqN3/p1p4P/5Rpn/BK2brQ1/3RN3/kB1BN2B/b3Qrn1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 e4 Kd6 h4 g5 d4 f5 Kd2 g3 Kc3 f3 h5 a6 h6 f4 b6 g2 b5 f2 b7 f3 e5+ Kd7 e6+ Kd6 e7 Nc6 e8Q Qf6 b8B Bg7 b6 Bb7 Rh3 Ne5 Ne2 g1B Nd2 Bh2 Ra5 Rh7 Bg2 f1Q Bb2 f2 Rd3 Nf3 Kb4 Ng1 Bf3 Bc6 b7 Qh3 Nf1 Qd7 Ne3 f1B Qc8 Qf8 Qe1 Nf6 Bh5 Qfd8 Be8 Nh5 Rb5 Bg2 Rc5 Qf7 Qg4 Be4 Bd7 Qh8 Ra5 Ke7 d6+ Kf6 Be8 Qd7 Rf5+ Ke6 Bc1 Qc8 d7 Bhe5 d8B Qd7 d5+ Kd6 Ka5 Kc5 d6 Bf6 Bd2 Rf7 Be7 Bg7 Bf6 Rf8 Nd5 Bf4 Bfc3 Kc4 Ne3+ Kb3 Bb2+ Ka2 Kb4 Bh2 Re5 Rf1 Rf5 Qc8 d7 Bg3 d8N Qd7 Bbc1 Ba1 Bb2 Bb5 Nc6 Rf4 Ba7 Rb8 Ne7 Bh2 Bg6 Rf8 Bb8 Rf1 Be8 Ba4 Rc5 R8f4 Rf5 c6 Bf7+ Bb3 Bc4 Bg3 Bb5 Bf7 Ba4 Be8 B8e5 R4f2 Bc7 Be5 Bb8 Rf4 Bc7 Bd4 Bd6 Bb6 Bde5 Bc7 Bd6 R4f2 Bh2 Rf4
3Brq1n/1pQ5/3bBp2/rP1RR3/R1RQq2n/b1P1q2N/qQK1kp2/3N4 w - - 0 1 illegal: No proof kernel
kB1R1K2/rpPBnbb1/1r2r3/Qq6/1NB4R/2P1pB1p/rQ3nN1/5Nq1 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Ke2 e5 Ke3 d5 a4 Kd7 g4 Kc6 f4 h5 a5 b3 g6 h4 f5 b2 a6 Qe8 a7 Rh5 g7 Qe7 c3 Be6 f6 Bf7 g5 Rh7 g6 Kc7 c6 Kb6 Qc2 Qa3 Be2 Rh8 Nd2 b1R Ngf3 Qa5 Nf1 Ne7 g8B Rh6 g7 Rb4 Qb2 Bh5 f7 Rg6 Ne1 Na6 Ng2 Re6 Bf3 Qb5 Ra4 Rb3 Rd4 Nb4 Bh7 Kc7 g8B Nd3 Bf5 Bg7 f8N Bf7 Nd7 Nf2 Nc5 h3 Nd3 Ra3 Nb4 Ra2 Rg1 Rf6 Bd7 Kb6 Ne1 Re6 Rg4 Rg6 Rd1 Rf6 Ng2 d4+ Kd2 d3 Ke3 d2 Rh4 Bg6 Bc4 Bf7 Re1 d1Q c7 Re8 a8Q Rd6 Qaa3 Ra8 Bd2 Ra6 Qa5+ Ka7 Re2 Rf6 Be1 Ka8 Rd2 Ra7 Rd4 Nh1 Bf2 Rfa6 Bc8 Qa1 Rd8 Rb6 Bg1 Nf2 Bd7+ Nc8 Kd2 e3+ Ke2 Ng4 Kd3 e2 Ke4 e1R+ Kf5 e4+ Bc5 Nf2 Kg5 Bf6+ Kh6 Bg7+ Kh7 e3 Bd4 Rd1 Bc5 Rdd6 Bd4 Be8 Kg8 Re6 Bc5 Be5 Kf8 Bf7 Nd2 Qh1 Nf1 Qg1 Qb1 Rbd6 Be4 Raa6 Ba7 Rdb6 Bb8 Ra7 Qb2 Ne7 Bf3 Bg7+
Q1K2Nk1/P2q1N2/B1bq1Q2/p1P1RrBn/1R2n3/3Bn1B1/p4Qp1/b1n1r3 w - - 0 1 illegal: No proof kernel
2Kq2RB/P2n1bp1/n2R1N2/1QQ2Rr1/1p6/1pN2RP1/1b2Brk1/N1q2r1r w - - 0 1 illegal: No extended proof kernel
Q6b/p1QRp3/r1n1Br2/QK4N1/NN1q1N1k/P5pn/b4BP1/1bR2bq1 w - - 0 1 illegal: No possible last move, all moves rejected
1Nrk2q1/pB1p3n/2QP4/1nn2R1q/2b3R1/3PBpn1/Nr3B1K/Qb1R2R1 w - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 f4 exf4 c3 gxh4 Na3 Bc5 Nb1 Bd4 cxd4 Qg5 Qb3 Qe7 Qd1 Qd8 Kf2 f5 b4 h5 g4 c5 Kg2 f3+ Kh2 c4 e4 h3 d5 c3 g5 f4 g6 h4 b6 c2 d3 f2 b7 Qg5 b5 Nh6 g7 Qh5 g8R+ Ke7 e5 Nf7 b6 Na6 b8R Nc5 e6 Ba6 b7 Bc4 Nf3 Ng5 Bg2 f1Q Nd4 Nh7 Rg4 Rc8 Nc3 Kd8 Be3 c1N Na2 Ne2 Rg1 Nc3 d6 Nb5 e7+ Ke8 Qa4 Qf3 Qa6 Qfd5 Rad1 Qdg5 Nc6 Qg8 Nc3 Ba2 Qa5 Bb1 Qa1 Qgd5 Na2 Qg8 Kh1 h2 Be4 Na4 Kg2 h1N Kh2 h3 Bg2 Rd8 Rc8 Nc5 b8B Ng3 Bc7 Rb8 Bb6 Rb7 Ra8 Rc8 Nb8 Nb3 Bbd4 Nc5 Bc6 Na3 Bf2 Rb2 Bb7 Nb5 Be3 Nf5 Kh1 h2 Kg2 Nh4+ Kh3 h1B Kh2 Bd5 Nc1 f3 Na2 Kf7 e8Q+ Kf6 R1g3 Bc4 Qe4 Kf7 Qc6 Ke8 Rgg1 Kd8 R1g2 Ke8 Na6 Rd8 Rgg1 Nf5+ Rh4 Ng3 Rc8 Kf7 Nb8 Rf8 Re8 Nf5 Re6 Ng3 Re5 Rc8 Rd5 Ke8 Rf5 Qhf7 Rd4 Kd8 Rg4 Qh5+
KQ2nBNb/1BpB2qP/n1P5/Bq2r1Q1/Rnp5/2NbQ2p/b2q2R1/2k5 w - - 0 1 illegal: No proof kernel
N4RnN/1bbKNB2/1qp1Q1p1/1P3Rp1/1bBn2Q1/1rn3P1/5B1k/1q1q3N w - - 0 1 illegal: No proof kernel
1r6/R2R3b/K1p1p2N/1pNQ2r1/bqQ1PP1b/Br1RR3/7q/1qn1B1kB w - - 0 1 legal: proof: g4 a5 c4 g5 b4 axb4 h4 d5 cxd5 f5 Rh3 Nd7 Rh2 Ne5 Rh1 Nf7 Rh3 fxg4 Rh1 g3 Bb2 g4 Bc1 Ng5 hxg5 Ra3 Qc2 Ra5 Qd1 Ra8 a4 Kf7 f4 Kg6 e4 h5 Ke2 h4 Kd3 Kh5 Kc4 g2 Kb5 h3 d4 Kh4 g6 Kg3 g7 Kf2 d6 h2 d7 b6 a5 b3 d5 g3 a6 b2 d6 Nh6 g8Q Ng4 a7 Rh3 Nd2 b1B Qc4 Ne5 Ne2 g1R Ba3 g2 Ng3 Bc2 Nb3 Nd3 Nf5 Rb8 Rb1 Bh6 a8R Bg5 Ra7 Bh4 Nh6 Qf8 d8B Bf5 d7 c6+ Ka6 b5 Ba5 e6 d8R Bh7 Rdd7 Qe7 Bc3 Qb4 Nc5 Ba4 Rb3 Rg3 Be2 Rg5 Qd2 Rb1 Re1 g1Q Qd1 h1Q Bf3 Rb2 Re3 Qhh2 Bh1 Qe1 Bd2 Kg1 Rc3 Rb3 Qh5 Rg3 Qhd5 Qb1 Be1 Nc1 Rcd3 Rg5
2QnNk1n/p4p2/q3Br1q/1bN1pQ1K/1B3P1R/PB2r3/2rBR3/q3Nn2 w - - 0 2 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 c3 b5 Ke2 b4 Bb2 b3 Ke1 Bg7 Ba3 Be5 Bc1 Bc7 Ne2 Ba5 Ng1 Bb4 cxb4 Bb7 Nf3 Ba6 Ng1 Bc8 Ke2 e5 f4 h5 d4 h3 g4 h4 g5 b2 b5 e3 Kf3 h2 g6 h3 b6 e2 b7 e1R d5 Na6 b8Q Qc7 g7 Nh6 g8N Qd7 c6 Nc5 c7 Qc6 a3 Nb7 Qd3 Qd6 Ra2 Nd8 Nf6+ Kf8 Ne8 Ng8 Qf5 Rh6 Kg4 Bd7 c8B Qa6 d6 Ne7 Nf3 Ng6 Nc3 b1N Re2 Bb5 d7 Nd2 Na4 Nh8 Nc5 Rf6 Qb7 Rb8 Kh5 Ra8 Bg2 Nf1 Bd2 Rb8 Qc7 Rc1 Ne1 Rc2 Bd5 Rbb6 Rg1 h1Q Bb3 h2 Rg4 Qg1 Rh4 h1Q Bb4 Qg7 Qb8 Nc6 d8B Qhg1 Bc7 Nd8 Bce6 Rd6 Qa8 Rd3 Qc8 Qd4 Bca5 Re3 Bd2 Qa1 Bab4 Qh6+
rr6/1p1R1Q2/2k2p2/1b1pQ3/B1nnq2R/2nPrP1Q/3q2BK/BQ3qNN w - - 0 2 legal: proof: e4 d5 c4 g5 b4 Bg7 h4 Be5 hxg5 Bd6 g6 a6 b5 axb5 e5 bxc4 exd6 c3 a4 Kd7 g4 h5 g7 c5 a5 e5 a6 h4 g5 f6 a7 h3 g6 c2 Ra4 c4 d3 c3 f3 e4 Kf2 e3+ Kg3 e2 Nd2 e1R Bb2 c1Q Ba1 c2 Ne4 Qf8 Nf2 Nh6 g8B Qd2 g7 c1N Bf7 Nc6 g8Q Na2 Qb1 Nc3 Bg6 Na5 Be8+ Kd8 Qg4 Re3 d7 Kc7 Rh2 Kd6 d8Q+ Bd7 Qb8+ Kc5 Qe5 Rd8 a8Q Nf5+ Kf4 Qg8 Qh5 Qh7 Qc8+ Bc6 Rg2 Rf8 Rg7 Rh8 Re4 Nd4 Kg3 Nc4 Rh4 Qe4 Re7 Rf8 Qf7 Rg8+ Qg4 Ra8 Bd7 Ba4 Bb5 Rgf8 Rd7 Rfb8 Bc6 Bb5 Qge6 Ba6 Ba4 Bb5 Ne2 h2 Bg2 h1Q Qh3 Qf1 Nh1 Ra6 Kh2 Kc6 Ng1 Raa8
rb3R2/1p6/2p1N2n/q3BR2/1rQKPN1q/r2R3p/1NPnB1n1/4kNQq w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g3 f5 g4 fxg4 h3 g5 Nd2 g3 Rh2 g4 Rh1 g2 Nb1 d6 Qd3 g3 Qd1 Bg4 hxg4 Bg7 Bd2 Bh6 Bc1 Bf8 Kd2 Ke7 Ke3 Ke6 f4 h5 a4 c6 a5 b3 g5 Kf5 e6 Kg4 a6 d5 a7 h4 g6 b2 g7 h3 f5 Qh4 e7 Nd7 e8R Rh5 f6 Nb6 f7 Nc4+ Kd4 Bd6 f8N Bb8 Ne6 Nh6 Ra5 Nd2 Rf8 Re5 Qe1 Re3 Qf2 Rf3 e4 Ra3 Ne2 g1Q N2f4 g2 Ba6 Qe1 Qg1 Kf3 g8Q Qg4 Qf7 Qgh4 Be2+ Kg3 Nc3 b1R Na4 Rb5 Bb2 Qa1 Bc3 Qe1 Nb2 Rb4+ Kc5 Qa1 Be5 d4 Rh2 d3 Rh1 Nc4 Kd4 d2 Rd5 d1N Rb5 Rba4 Rb3+ Nde3 Rd3 Qe1 Rh2 Qa5 Rh1 Rb4 Rh2 Bd6 Rh1 Re8 a8N Bb8 Nb6 Nd2+ N6c4 Rc8 Qd1 Re8 Rf1 g1Q Rf2 Qg2 Qb1 Qf3 Qe1 Ng2 Qg1 Bd6 Rf1 Ra8 Rf2 Bb8 Rf1 Rb5 Ne3 Rb6 Nc7 Rb4+ Qc4 Qf2 Nce6 Qe1 Rf2 Qc1 Qh1 Qg1 Rf5 Qh2 Qg1 Qh1 Rf8 Qg5 Nfd5+ Kh4 R2f4+ Kg3 R4f5+ Qf4 Qh2+ Kf2 Nf1 Ke1 Qg1 Qg5 Ndf4 Qh4
B3br2/K3r2B/1r2k2r/Q1QN1p2/pPn1pPRB/b4rNR/bR3qB1/8 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra4 Na6 Ra2 Nb4 Ra3 cxd4 Ra1 d3 Bg5 d4 Bc1 Nd5 exd5 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 Kd7 c4 e5 g4 f5 d6 a5 c5 h5 g5 h3 b6 a4 c6+ Ke6 b7 e4 b8R h2 c7 h4 d7 h3 g6 Kf6 g7 Nh6 g8B Ra6 Ne2 Nf7 Nbc3 Ke6 Bg2 Qh4 d8Q Ba3 Bh7 Rf8 Qc2 Bd7 c8B Ne5 Qa5 Rb6 Bb7 Be8 Nd5 Qg3 Rg1 h1R Qcc5 h2 Ba8 Qh4 Ng3 Nc4+ Ke1 d2+ Ke2 d1R Bg5 Rc1 f4 Rf1 b4 Rf3 Ra2 Bf7 Rb2 Be8 Rc1 Rd1 Rc3 h1R Rb7 Qh2 Rg7 Qg1 Rg8 Rh6 Bh4 Qh2 Rg4 Rd2+ Ke1 d3 Rcb3 Rc2 Rc3 d2+ Ke2 Ne5 Rcb3 Rc4 Re3 d1B+ Kd2 Rd4+ Kc3 Rd2 Rd3 Nc4 Kd4 Rc2 Qc7 Rd2 Kc5 Bb3 Rc3 Ba2 Qca7 Rc6+ Kb5 Rc7+ Ka6 Re7 Q7c5 Qg1 Re3 Qf2 Nb6 Bf7 Re1 Red7 Rh1 Re7 Rh3 Rdd7 Nd5 Be8 Qac7 Rd6+ Ka7 Bd7 Qa5 Rb6 Bc6 Be8+ Bb7 Kd7 Ba8 Ke6+
r4b2/Q1rn2PQ/4rn1N/1r4N1/R1pNr1pK/BpP2BN1/4B2k/2nR2q1 w - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 b4 axb4 h4 b6 h5 Ba6 Rh2 Bd3 Rh1 Bg6 hxg6 f5 Bd2 fxg4 Bf4 Qe7 Bc1 Qd8 a4 Ke7 f4 Ke6 Kf2 Kf5 Kg3 h5 e6 c5 g7 d5 e7 b5 e8Q c4 a5 b3 c3 b2 a6 d4 a7 d3 Qa4 d2 Nh3 d1R Nd2 b1R Ne4 b4 Ba3 Nf6 Qg6+ Ke6 f5+ Ke5 e3 Rd6 Be2 Qb6 Rd1 Re6 Qh7 Nbd7 Qa6 Rc8 a8B Rc7 Qa7 b3 Bd5 Rb2 Bb7 Rd2 Bc6 Rd5 Ra2 Rb5 Ba8 Nd5 f6 Qc5 f7 N5f6 Bb2 Qd4 Ra4 Qc5 Ba3 h4+ Kf2 Qd4 Ng3 Qb6 Baf3 Rg8 Nf5 g3+ Kg2 g4 e4 Qc5 Ng5 Kf4 e5 Rh8 Nh6 h3+ Kh1 h2 Kg2 Ra6 e6 h1R e7 Re6 e8N Re1 Nd6 Rg8 Bd3 R1e4 Bde2 Qd4 Ndf5 Rh8 Kh1 g2+ Kh2 g1N Ng3 Qe3 Bd3 Ne2 Kg2 Nc1 Bde2 Bd6 Kh2 Ra8 f8N Qd4 Nf1 Ke5 Kg3 Qg1+ Kh4 Kf4 Ng3 Nb6 Nd7 Bf8 Nb8 Nbd7 Nc6 Qe3 Nd4 Qg1 Nh1 Ke3 Ng3 Kf2 Qb7 Qg2 Bf1 Kg1 Qa7 Kh2 B1e2 Qg1
3kB1b1/1B1r2pR/2BBbK2/1Qp1N3/2r2b2/NnP2P2/1qb2Q1p/1rN2R1b w - - 0 1 illegal: Other
1nbq2Q1/q1Q2r1K/1P1N1NBB/3q1n2/1k4B1/b1q2Qp1/R1pp1RPq/5Q2 w - - 0 1 illegal: No proof kernel
R3N3/QB4b1/2b2NR1/nr2bp1Q/2q2q1p/2Rpn2b/K1PPQ2B/2k3bR w - - 0 1 illegal: No proof kernel
QK4k1/BP5R/3N3B/1Qp1bQb1/rp2qb1B/n1p5/bP3Nqb/4n1RB w - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 g4 dxc4 a4 hxg4 Qf3 a5 Qc3 b5 Qf3 b4 Qd1 Ra7 Ne2 Rb7 Ng1 Rb5 axb5 Be6 Ra4 Bd7 Ra1 Bc8 Ke2 Kf7 Ke3 e5 Ke4 g5 d4 c5 h4 a4 f4 a3 d5 c3 b6 g3 h5 a2 b7 g2 f6 g4 f5 g3 h6 Qe8 h7 Be7 d6 Na6 Kd5 e4 d7 e3 Kc6 e2 Qa4 e1B Bh6 Bd2 Nh3 g1B Na3 g2 Nf2 Bf4 Nc4 Bgh2 Qb5 g1B Bg2 Nc7 Bg5 Kf8 f7 Nh6 Nd6 Ng4 Bh4 Beg5 Rf1 Qe1 d8B a1Q Bf3 Rg8 h8Q Be6 Kb6 Qab1 Ka7 Qee4 Kb8 Qbc2 Qh5 Rh8 Rc1 Kg7 f8B+ Kg8 f6 Ba2 Bh6 Ne5 Qg4 Qce2 Qf5 Nd3 Rf1 Ne1 Bg2 Ne6 Bb6 Nd4 Ba7 Ndc2 Bf3 Bhg3 Rh3 Be5 Bh1 B1h2 Rg1 B3f4 Rg4 Na3 Rg1 Rh7 f7+ Kh8 Ng4 Q2g2 Nf2 Rg7 f8Q+ Rg8 Qd8 Rf8 Kc7 Kg8 Qa8 Re8 Bf8 Re7+ Kb8 Rc7 Bg7 Rc6 Bh6 Ra6 Bf8 Nb1 Bg3 Bc4 Rh7 Na3 Bh4 Ba2 Bh6 Ra4
2Nb2K1/B2B1Rpb/1q2n1kp/rR3n1p/b3QbPB/1N1Q1q2/2bP1Q2/7B w - - 0 1 illegal: No possible last move
1Q4r1/B5r1/6N1/1Bp1rNPp/1nQR3Q/3p2nK/1rPNqb2/1Nk2rqR w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 h3 g5 Qd2 g3 Qf4 g2 Bd2 g4 Bc1 g3 Qd2 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 e4 Kf7 f4 Kg6 b4 d5 e5 a5 e6 h5 b6 d3 e7 a4 e8N a3 b5 a2 b7 d4 b6 d2+ Ke2 d3+ Kf3 Nf6 f5+ Kg5 Nd6 Qe7 Qe1 Nc6 b8Q Rg8 b7 Ra5 Qc8 Nb4 b8Q Ne4 f6 Re5 f7 c6 Ba3 d1R Nf5 Qe8 Be2 Bc5 f8N Bf2 Ng6 Qe7 Qa6 Rg7 Qc4 Rc1 Qec3 Rf1 Qe1 Qe8 Bb2 Qe6 Bd4 Qe8 Bb6 c5 Ba7 Qe6 Na3 Qe8 Rb1 a1R Rb3 Rg8 Nb1 Ra2 Ra3 Rb2 Ra4 Kf6 Kf4 Qe6 Nf3 g1R Bd1 g2 Nfd2 Ng3 Bf3 Qe8 Bc6 Qe7 Qa6 Ke6 Bd7+ Kd5 Bb5 Qe8 Kg5 Qe6 Kh4 Qe8 Ng7 Kd4 Kh3 Qe7 Qc1 Ke3 Nf5+ Ke2 Qe6 Qe8 Qc4 Qe6 Nf3 Qe8 Q1f4 Kd1 Nfd2 Kc1 Qfd4 Rd5 Qf6 Qe2 Qh4 Re5 Ba6 Re1 Bb5 Rgf1 g5 g1Q Ra6 Re7 Rd6 Reg7 Rd8 Qd1 Rd6 Re5 Rd4 Qe2
k2r2rN/1p2R2r/pQ1B1B2/b1rp1q1N/QPnKb1r1/1QR1Q3/3P4/3B2q1 w - - 1 2 legal: proof: g4 c5 b4 h5 f4 hxg4 a3 Na6 bxc5 Nb4 axb4 e5 Bb2 exf4 Ba3 Qb6 Bc1 Qd8 Kf2 g5 e4 d5 c4 Kd7 h4 Kc6 h5 f5 e5 a6 h6 f3 Ke3 f2 h7 g3 e6 g4 e7 f4+ Kd4 g2 e8Q+ Kc7 c6 Kb8 c5 g3 c7+ Ka7 c6 f3 Na3 Nh6 Qe3 Qd6 Nb5+ Kb6 Qa4 Ng4 Bb2 Be7 Rc1 Bf5 c8Q Rd8 h8B Be4 c7 Qe6 Be5 Qf5 Nh3 g1Q Nd6 Ka7 Rc3 g2 Be2 f1R Qe6 f2 c8Q Rc1 Nf7 f1R Bd6 Ne5 Nf4 Nc4 Bd1 Rb8 Qg6 Ka8 Nh5 Rf3 Rh2 Rh3 Nh8 Rg8 Qce6 Bd8 Qg3 Ba5 Rh1 Rbd8 Qh6 Qgf2 Re1 g1R Qf3 R1g4 Qf6 Rb8 Qd8 Rh2 Qb6 Rbd8 Ra3 Qg1 Qef2 Rf4 Kc5 Rhg2 Nf6 Bb1 Re7 R2g7 Nh5 Rh7 Bf6 Be4 Kd4 Rfg4 Qc3 Rc2 Qfe3 Ne5 Qb2 Rc5 Rc3 Nc4 Qbc2 Rdc8 Qcb3 Rcd8
kBq5/B1b1NN2/bRp3nN/1b1q4/B4r1P/Q1BpR1b1/Q1P1pr1b/4K3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 d5 f5 exf5 c6 d6 Na6 Bf4 Nf6 Bc1 Nc7 dxc7 Ng8 h4 e5 f4 d5 a4 Kd7 a5 b5 a6 g5 f6 g3 f7 g4 a7 g2 f5 d4 f6 e4 Na3 d3 Ra2 b3 Bh6 g3 Qc1 b2 Qa1 b1B Nc4 e3 Qc3 b4 Ra6 b3 Ne2 g1B Nd4 b2 Bg7 g2 Rh3 e2 Nf5 Bh2 Rb6 g1B Ncd6 Ba6 c8N Kc7 Nce7 Ba2 Qa3 B2c4 Bg2 Bcb5 Nh6 Qc8 Re3 Bf4 Be4 Bgh2 Bd5 Rb8 a8Q b1Q+ Kd2 Qb3 Ke1 Qa2 Bb3 Be5 Ba4 Qd5 Qa2 Rh7 Bh8 Rg7 Qa3 Rg2 Qa2 Bg7 f8B Rf2 f7 Beg3 Qa3 Bb2 Bc3 Rb7 Bfg7 Rb8 f8B Bc1 Re5 Bcf4 Re3 Be5 Ndf7 Bef4 Nef5 Ne7 Bgd4 Ng6 Bfc5 Qb7 Bf6 Rf8 Ne7 Bd6 Bfe5 Qc8 Ng5 R8f4 Ngf7 Bb7 Qa5 Kb8 Qa2 Bc7 Qb4 Ka8 Qba3 Bd8 Bb8 Bc7 Bd6 Qd8 Ba7 B7a6 Bde5 Qc8 Bd6 Bd8 Bdb8 Bc7
Q1r1Nn1Q/2b4p/n1P1qq1P/RK1r1Bk1/1Bp2r1p/1B4N1/R1r1qR2/1B6 w - - 0 1 illegal: No proof kernel
k2b3R/bqB1pQp1/qp1K2PR/1b5B/1r3N1P/3br1NQ/4Q3/Bq3nB1 w - - 0 1 illegal: Other
1B4q1/BNRr3q/q2R1p1k/1bp1q2B/b2Q2p1/Q3bPP1/5B2/1RNnK2r w - - 0 2 legal: proof: c4 d5 d4 dxc4 a4 b5 axb5 e5 h3 exd4 Qa4 g5 Qb3 Nd7 Qd1 Ndf6 h4 g4 Ra2 Ne4 Ra1 Ng5 hxg5 Qd6 Na3 Qd7 Nb1 Qd8 b4 a5 e4 h5 g3 c5 g6 a4 f3 c3 e5 f6 e6 a3 e7 d3 g7 Kf7 e8R Kg6 b6 h4 b7 a2 b8B h3 b5 h2 b6 c2 b7 Ne7 Ne2 Bd7 Be3 c1Q Nbc3 Qa3 Ba7 Nd5 b8B Bb5 Rb1 a1Q Re7 Qa6 Bf2 Ne3 g8Q+ Kh6 Ne4 Qe5 Qgb3 Bg7 Qa4 Qg8 Nc1 Bf8 Qdb3 Nd1 Rc7 Bd6 Rg1 h1Q Qd4 Rh7 Be2 Rd7 Qa3 Bf8 Nd6 d2+ Kf1 Qhh5 Nb7 Qhg6 Bc4 Q6g7 Qdd3 Q7h7 Bf7 Bd6 Rc8 Bc7 Bh5 Ba5 Rc6 Bc3 Rc7 Bd4 Rh1 Be3 Ke2 Nc3+ Kf1 d1B Ke1 Bda4 Qd4 Nd1 Rg1 Bf1 Rb6 Bfb5 Rd6 Qgh8 Nb3 Qc6 Bb6 Q8g8 Qab4 Nb2 Rf1 Ra6 B6a7 Rb6 Qa3 Bd3 Rh1 Bg6 Kf1 Bd3+ Kg2 Qb5 Rf1 Qa6 Kg1 Rb4 Rd1 Rc4 Rb1 Rc1+ Kg2 Rh1 Nc1 Rh3 Kg1 Bdb5 Kg2 Nc4 Kf1 Nb2+ Ke1 Nd1 Qc4 Rh4 Qd4 Rh1+
2k2Bn1/Krb2B1R/p2B2R1/q2Q4/p1n2q1R/PBQ3p1/2q1r1Pn/3NN1q1 w - - 0 2 legal: proof: f4 e5 c4 d5 cxd5 exf4 Qb3 b6 Qd1 b5 h3 g5 Nc3 g4 Qa4 g3 Nb1 Bg4 hxg4 bxa4 e4 Kd7 Ke2 c5 Kd3 h5 Kc4 f5 Kb5 c4 d4 h4 b4 f3 g5 f2 g6 h3 a3 c3 g7 f4 e5 f3 e6+ Kc7 e7 h2 e8B c2 d6+ Kc8 d5 Rh6 d7+ Kc7 d6+ Kb7 Nc3 Qf6 d8Q Qe6 d7 Rg6 Bh6 c1Q Qf6 Qh3 d8Q Qb1 Nd1 Qh5+ Qd5+ Nc6 Bc4 f1Q Bf7 f2 Nf3 Re8 Qc3 Qc2 Ne1 Kc8 Ka6 Re2 b5 Ne5+ b6 Bd6 Bb3+ Nc4 Rb1 Qg1 Rc1 f1N b7+ Kd7 b8B Kc8 Rb1 Qf3 Ra1 Qf4 Rb1 Be5+ Bd6 Re6 Bg5 Qc5 Be7 Rh6 Bf8 Qb4 Rg1 h1Q Ra1 Qh2 Rh1 Qg1 Rh4 Nh2 Rb1 Kd8 Rc1 Qa5+ Kb7 a6 Ra1 Ne7 g8R Kd7 Rg6 Ng8 Ka8 Kc8 Rb1 Qh1 Ka7 Qg1+ Bc5 Bc7 Rc1 Re6 Ra1 Rb6 Bcd6 Rh5 Rb1 Re5 Rh7 Re2 Rb2 Qd3 Rd2 Qc2 Rd4 Qff2 Rdg4 Qf4 Rgh4 Rb7+
B1r1BN2/1QBpKpqN/1n1n1P2/3r4/N4R2/1N1Q1R2/kp3P1q/nn2r2b w - - 0 1 illegal: No proof kernel
r1b5/2bNKN1k/3R1r2/Rp3p1r/P2qRP1q/p1N4Q/1r1RBn1B/Q4q2 w - - 0 1 illegal: No proof kernel
4RNN1/2P2r2/1nRBb3/3p3q/qb1Pr2Q/k2p1BrN/b1pQN3/2bK3Q w - - 0 1 illegal: No possible last move, all moves rejected
4bRQ1/NQ2NN2/n1Br1b2/5RqQ/1p1p1b2/bnnP1PNq/2p2B1K/1k6 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 hxg4 b3 b5 Na3 b4 Nb1 Ra7 Nc3 Rb7 Nb1 Rb5 cxb5 a4 Qf3 axb3 Qe2 Kf7 Qd1 Ke8 a4 Kf7 h4 Kf6 d3 Ke5 h5 Kd4 f3 g5 Kf2 c5 Kg3 d5 h6 e5 b6 b2 a5 c4 f6 e4 f7 e3 b7 e2 a6 e1B+ Kg2 g3 h7 c3 a7 c2 a8Q g4 Qa5 Bc3 Qb5 Na6 b8N Qh4 Na3 b1N Bh6 Bd6 f8Q Ne7 Bc1 Bf4 Qh6 Nd2 Qh5 Rd8 h8N Bd7 Nf7 Nb3 Qb7 Bb2 Be3+ Kc3 Bf2 Be8 Nc6 Rd6 Rh3 Bbc1 Nb5+ Kb2 Ra5 Kb1 Ne2 d4 Nba7 Nd5 Ne7 Nc3 Kg1 g2 Rf5 Bg5 Ng3 Bf6 Qe2 Ba3 Kh2 Qg5 Qe6 g1B+ Kh1 Bh2 Rh4 Bg7 Bh3 Be5 Qeg6 Bf6 Qg8 Qh6 Qhg6 Qg5 Rh8 Qh6 Qh5 Qh7 Ne4 Bf4 Kg2 g3 Kg1 g2 Ng3 Na1 Kh2 Qh6 Qh7 Qg5 Rf8 Nb3 Qg8 Qh4 Re5 Qg5 Bd7 Qh6 Rf5 g1Q+ Kh3 Qf1+ Kh2 Qg5 Bc6 Qh3+
4rb1B/1R2PN2/2q1Q2K/1p1B2Nn/bN1p2p1/qb1P1NbR/1kr1r1Q1/4R3 w - - 0 1 legal: proof: f4 h5 g4 e5 gxh5 exf4 c4 b5 c5 Na6 Nf3 Nb4 Ng1 Nd5 b3 a5 b4 Nb6 cxb6 axb4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 a4 Kd4 e4 g5 h4 c5 a5 f5+ Kh3 d5 b7 c4 b8N f3 h6 c3 a6 b3 d3 b2 a7 c2 h7 f2 h5 f4+ Qg4 f3 h6 Qd6 Nd2 Kc3 e5 b1B e6 Qc6 e7 Nf6 Na6 Nh5 Bg2 f1Q Nb4 f2 Ngf3 Ng7 Qe6 g4+ Kh4 d4 Kg5 Bd7 Rh3 Rc8 a8Q Ba2 Ba3 Bb3 Re1 c1B Kg6 Qh1 Ng5 f1R Bd5 Ba4 Ndf3 Bf4 Qb7 Rg8 h8R Bg3 h7 Rf2 Kh6 Re2 Bc1 Re8 Bf4 Kb2 Be5 Qc3 Qbc6 Qa3 Bc4 Ra8 Ng1 Rc8 Qed6 Be6 Ne4 Ne8+ Bg7 Bf7 Qf6 Be6 Qf3 Bd5 Qe6 Rc6 Ba2 Rcc2 Qf2 Qf3 Qg2 Bc4 Nc5 Qc6 Ne4 Bd5 Nf3 Bc4 Kh5 Bd5 Be5 Bg7 Bb3 Bf6 Kh6 Nd6 Ba2 Ra8 Rb8 Ne8 h8N Bc4 Neg5 Bg7+ Kh5 Bd5 Rb7 Bf8 Nhf7 Rb8 Bh8 Ng7+ Kh6 Re8 Qd6 Be4 Be6 Bd5 Qe5 Bdb3 Qd6 Qb6 Bd5 Qc6 Qe6 Nh5+
3n1N2/NbpPQpB1/q1PR1Nq1/kp3RqB/1b1qRn1b/8/8/1K3RrQ w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 a5 Qh5 axb4 Qg4 Ra3 Qd1 Ra8 h4 b5 g4 Bb7 g6 Qd3 h5 Ba6 g5 Bc8 g7 Ra6 Qe2 Rg6 hxg6 Qd5 Qd1 Qd8 c4 Kd7 a4 Kc6 d4 Kb6 Kd2 h5 Kc2 e5 c5+ Ka5 c6 e3 d5 h4 d6 e4 d7 h3 Nc3 h2 Kb1 b3 Nh3 b2 Be2 Na6 Bh5 e2 Re1 h1Q Nf4 e3 Ne6 Qh4 Nd5 Qf2 Nf6 Ne7 g8Q Nb4 g7 Ned5 g6 Bd6 Qf8 Nb6 g8R Qf4 g7 Na6 Qe7 Bb7 Nf8 Nc5 Rf1 Qg5 Rf5 Ne6 Qh1 e1B Bd2+ Bb4 Bc3 e2 Bd4 Ka6 a5 Qa8 Ra4 Nd8 Be5 Ba3 Re4 Nd5 Rf1 Rh7 Rh8 Bab4 g8R Nf4 Rg6 Bh4 Bc3 Ka7 a6 Kb6 a7 Rg7 Rgh6 Qc8 a8N+ Ka5 Nb6 Qa8 Be5 Qa6 Nc8 Rg6 Na7 e1Q+ Bd1 Qe3 Bh5 Qd4 Rg8 Qgg1 Rg7 Rg2 Rg5 Qge3 Rf5 Rg1 N6h7 Qg3 Bg7 Qg2 Rd6 Qg5 Ka2 Bd2 Nf6 b1Q+ Ka3 Qbd3+ Ka2 Qdg3 Kb1 Bb4 Qh2 Qg6 Qh1 Q3g5
1B1k3K/3qp1bR/p1b1R1N1/2rqPNb1/6P1/2QQR1n1/N2N1pb1/r2r3B w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 f3 g5 Ra4 g3 Be3 g2 Ra1 g4 Bd2 g3 Bc1 Nc6 Kd2 Ne5 Ke1 Ng4 fxg4 Ba6 Bg5 Bb7 Bc1 Bc8 Kd2 d5 Kd3 f5 b4 a6 e4 f4 h4 f3 c4 f2 b6 Qc7 b7 Rh6 b8Q Qd6 h5 Rh7 c5 Bh6 b5 Kd8 b6 Nf6 b7 Kd7 c6+ Ke8 c7 Bd2 h6 Qd8 Ra3 Nh5 Ne2 g1R Bg2 Be6 c8N Bd7 Qc7 Bc6 b8R Bg5 Bf4 Qd7 Nec3 Re1 Qe2 Rd1+ Nd2 Rh8 Bf3 g2 h7 g1B Rb6 Bh2 Na2 Ng3 Qe5 Ra1 Nd6+ Kd8 Nf5 Rc8 Qe3 Rf8 h8N Rf6 Ng6 Rd6 Re1 Rc7 Bh1 Rc8 Qf3 Rc7 Re3 Rc8 Kc2 d3+ Kc3 d4+ Kc4 Rc7 Qa5 Rd5 Qc3 Rc8 Bb8 Rc7 Nf1 d2 e5 d1Q Rab3 d3 Nd2 Bf6 Rb1 Bg7 Qe4 Nh5 R1b3 Bf4 Rh3 Ng3 Rh7 Bg5 Ra3 Rb5 Qd5 Rbb1 Kd4 Ba4 Re6 Rc5 Rb3 Bc6 Ra3 Bh4 Ke3 Qb3 Kf4 Rd1 Qf3 Qbd5 Rb3 Bhf6 Ra3 Bh8 Rb3 Bfg7 Kg5 Bf6+ Kh6 Bh4 Rf7 Bg5+ Kh7 Bg7 Kg8 B7f6 Rh7 Bg7 Nc4 d2 Qfd3 Rdb1 Ra3 d1B Nd2 Bf3 Rb3 Rd1 Ra3 Bf8 Kh8 Bfh6 Ra4 Bg2 Re4 Bf8 Re3 Bg7+
qb2k1N1/1B3N2/4Pn2/3Rp1K1/2bBNb2/n1q1P1Q1/1bp2Rp1/QQ1N2rn w - - 0 1 illegal: No possible last move
4K3/RB3b1Q/p2pQrq1/1R2R2r/1N1PN2Q/p1n2k2/1BP1q1n1/n2Q1r1r w - - 0 1 illegal: No possible last move, all moves rejected
BQR5/7Q/1qp1r1KN/p2n3Q/2P2B2/1QP1pR1r/n5kr/q1N1Rnbr w - - 0 1 legal: proof: h4 b5 a4 f5 e4 fxe4 d3 g5 axb5 gxh4 Bg5 Bb7 Bh6 Bd5 Bc1 Bc4 dxc4 Bh6 Ra5 Bg7 Ra1 Bf8 f4 Kf7 b4 Kf6 Kf2 Kf5 Ke3 d5 c3 a5 g3 e5 b6 h5 b5 h3 b7 h2 b6 h4 Bg2 h3 Na3 Na6 Ne2 Kg4 f5 Ne7 f6 Nb4 f7 Na2 Rf1 h1N Nb5 h2 Nbd4 Rh6 Bf3+ Kh3 g4 Ng3 g5 h1R g6 Ra6 b8R Rh2 b7 Re6 g7 Rh5 Nf5 d4+ Kd2 d3 Ke3 d2 g8Q Rh7 Qb3 d1R Rc8 Re1 Rf2 Reh1 b8Q Qd6 Q8b5 Qb6+ Qc5 Rhh6 Qh7 Rh4 Nh6 Bg7 Kd2 Nf1+ Kc2 Rh5 Bf4 Bf6 Rd1 Bh4 Nc1 Bg3 Re2 Bf2 Qd5 Bg1 Rf2 Rg6 f8Q Rc6 Qff7 Re6 Qa8 Rh4 Qb8 Rh5 Nd3 Rh4 Bc1 Kg3 Qh5 R4h3 Bg5 e3 Ra1 e2 Ba8 c6 Rf3+ Kg2 Bf4 e1Q Rc1 Qe4 Re1 Ne3+ Kd2 N7d5 Nc1 Qb1 Ke2 Qa1 Kd3 Nf1 Ke4 Be3 Kf5 e4 Kg5 Bg1 Kf5 e3 Kg5 Nf6 Kg6 Nd5+
1R4RR/N1r2NRp/p1r5/B2P2QK/P1b4p/q1r3N1/k1Bqn3/n2Qq1r1 w - - 0 1 legal: proof: f4 c5 h4 g5 e4 gxh4 b4 e5 bxc5 d5 Be2 Bg7 Bf1 dxe4 Bc4 e3 Ba6 e4 Bf1 Be5 fxe5 Qd7 Nf3 Qd4 Ng1 Qd8 Ke2 Kd7 g4 Kc6 d4 Kb5 a4+ Kb4 c4 b5 d5 f5 g5 f4 e6 Qe7 c6 Nh6 c7 Nc6 c5 Nf5 g6 Na5 c6 Nb3 g7 Ba6 g8Q Rc8 Ra3 Na1 Qg5 Qf8 e7 f3+ Ke1 e2 Kf2 e1R e8R Ng3 Bd3 Ne2 Nh3 Rg1 Nd2 Qf4 Nf1 Qd2 Rd8 Rf8 Bc2 Rf6 Bb2 Kc4 Rg8 b4 Re3 b3 Bc3 b2 Ng3 b1R Ba5 Rc1 Rb3 Bb5 Rh2 a6 Rb4+ Kc3 Rg2 Bc4 Rh8 Rb8 c8R Rb7 c7 Rc6 Rcd8 Ra7 c8N Rac7 Bb3 Kb2 Rdg8 Rc3 Na7 Ka3 Bc2 Ka2 Rbb8 Rh1 Rg1 e3+ Kf1 f2 Kg2 Qc1 Kf3 f1Q+ Kg4 Qf2 Kh5 Qa3 Qf4 Qe1 Ng5 Qd2 Rg2 Rg1 Nf7 Nd4 Qg5 e2 Rf2 e1Q Rf6 Re3 Rfg6 Rc3 R6g7 Ne2
R5nk/q6p/nQ2QRqb/4bBp1/NK5P/2P2RBb/1RpN4/1rnN1n2 w - - 0 1 illegal: No proof kernel
1B2b1Q1/nN2bK1p/3qR1p1/3pQR2/kn1r4/2Qq2PP/1b3q1B/NR4qQ w - - 1 2 legal: proof: d4 b5 a4 a5 axb5 d5 e4 f5 Bd3 Ra6 e5 c5 Be4 Rd6 exd6 cxd4 Be3 fxe4 Bf4 Na6 Bc1 Nb8 Ke2 Kd7 c4 e5 f4 e3 Kd3 a4 b4 g6 f5 a3 f6 e2 h3 e1B c5 a2 c6+ Ke8 c7 Kd7 f7 Bc3 b6 Kc6 d7 Kb5 b7 Bb2 Ne2 Nh6 Bf4 Bc5 f8R Bc1 Re1 Be7 Ng3 Qe8 d8Q Qc6 Rf5 Ng4 Nd2 Ne3 Rb1 a1Q Nge4 Qd6 Nb3 Re8 Bh2 Bd7 c8Q Nc6 b8Q+ Ka4 g3 Nc2 b5 Na7 b6 Bb2 b7 Rf8 Re2 Be8 Qc3 Rf7 Qh1 Nb4+ Kd2 d3 Ke3 Qa3 Na1 d2 Kf3 d1Q Kg4 Rf6 Kg5 Qg1 Kh6 Qb3 Kg7 Qbd1 Qbc7 Qd3 b8B Rf8 Qdc8 Qf2 Qe6 Qg1 Qg8 Rf6 Nd2 e4 Ndb3 e3 Na5 Qf2 Ree1 e2 Nb7 Qg1 Qe5 Re6 Qec3 Re4 Qe5 Rd4 Qc3 Bb5 Kf7 Qf2 Rf1 e1Q Rf6 Qg1 R1f5 Qef2 Re6 Be8+
1K4rq/3r1p2/1p3B2/kp3NrB/1qb1NP2/P2n1BRB/1Rq2nQQ/Q3r3 w - - 0 1 illegal: No possible last move, all moves rejected
1kB2BqN/1q1p4/2R1n3/1r2RBB1/pnpPrQ2/2q3N1/1n1P1Rn1/1b1Q2K1 w - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 f4 exf4 c3 gxh4 Na3 Bc5 Nb1 Bd4 cxd4 Qg5 Qb3 Qe7 Qd1 Qd8 Kf2 f5 g4 h5 b4 a5 e4 c5 e5 f3 e6 h3 b6 f4 g5 h2 b5 h4 g6 h3 e7 a4 g7 c4 b7 Rh5 b6 Nh6 g8B Nf5 Bh7 Ng7 Qc2 Rb5 Bfd3 Ne6 Bhe4 Nc6 b8Q Nb4 Nc3 Bb7 Ba3 Qc8 Bf5 Be4 b7 Qd8 Kf1 f2 Nge2 Raa5 Rg1 h1N Nd5 h2 Ng3 Ra8 Qd1 Qc8 Be2 Bb1 Kg2 f1N Bf3 Nf2 Qd6 Raa5 b8B Nfd3 Bc7 Qb8 Bd8 Nb2 Kf2 h1Q Qe5 Kf7 e8R Ne3 Bg5 Ng2 Ne7 Ra8 Bd5 f3 Qf4 Qd8 Kf1 f2 Ng6 Qc8 Bde4 Qh7 Rh1 Qb7 Rh6 Qg8 Bd5 Rb8 Bc6 Re5 Bf3 Re4 Nh8+ Kg7 Re7+ Kf8 Rf7+ Ke8 Rhf6 N4d3 Bf8 Kd8 Ra3 Nb4 Re3 Kc8 Re2 Re5 Re1 Rb5 Re5 Kc7 B3e4 Re8 Rh6 Kb8 Bd5 Qa6 Bb7 Qa7 Bc8 Qb7 Rhf6 Nh4 Ke2 f1Q+ Ke3 Qd3+ Kf2 Qc3 Kg1 Nc7 Rc6 Ne6 Rh7 Ng2 Rh2 Ne1 Rhe2 Ng2 Rf2 Nc7 Rec5 Re4 Re5 Ne6
k1q2qbN/nR2PQ2/2NR3b/1p4B1/BK2pQ2/N3Bp1q/NPnn3q/2r5 w - - 0 1 illegal: No proof kernel
k1q1rQR1/b3q2R/1np2ppb/R1qQB1Q1/2b1Q1P1/K2N2N1/5Pn1/5q1B w - - 1 2 legal: proof: h4 d5 a4 a5 e4 dxe4 h5 b5 axb5 e6 h6 c6 Nc3 g6 Nb1 f6 Nc3 Ra7 Nb1 Rg7 hxg7 Ba6 Rh2 Bb7 Rh1 Bc8 c4 Kd7 d4 Kc7 Kd2 Kb7 Kc2 h5 Kb3 e5 g4 e3 d5 e4 b6 e2 d6 e1Q d7 h4 c5 h3 Bg2 a4+ Ka3 h2 b4 e3 b5 e2 Qd5 Nh6 g8R Nf5 Bf4 Bh6 Nh3 Ka8 Nc3 Nh4 Be5 Ba6 Nf4 Qc8 d8Q Nd7 Ne4 Qd2 Qe7 e1Q Nd3 Qde3 Bf3 Ng2 Ng3 Q1e2 Qee6 Qf1 Qf5 Qfe1 Qfe4 Q1e2 Kb4 a3 Kb3 a2 b7+ Ka7 Ka3 Nb6 Rhg1 h1Q Rgd1 Qh2 Rh1 Qg1 Rh4 Qgf1 Rh2 Ne1 Bh1 Ng2 Rh5 Bf8 Rh7 Bh6 Rb1 a1B Rb4 Q2f3 Ra4 Qff5 Ra5 Qfd7 Bf4 Qe7 Qg5 Be5 Qd5 Bd6 Be5 Kb8 Qe4 Kc7 b8Q+ Kd7 Rgg7 Re8 Rg8 Kd8 Qa8 Bb8 Qb7 Ba7 Qa8 Nd5 b6 Bc4 b7 Nb6 b8Q Kd7 Bd4 Kd8 Qbe5 Kd7 Qe6+ Kc7 Q6d5 Qd8 Rhh8 Rf8 Qf3 Qdd7 Qe8 Kb7 Be5 Qc8 Rh7 Ka8 Qef7 Rd8 Qf8 Re8 Qfe4 Q3xc5+
bK3N1b/qp2rkP1/1bq1Rp1Q/BQbB4/2rB2N1/1N3Nn1/Rq2pP2/8 w - - 0 1 illegal: Other
qr2N3/1QNp1p1B/3p1Bb1/1BbK2Br/4P1q1/R6R/QqNP1q1n/3b3k w - - 0 1 illegal: No proof kernel
b3q1B1/1Kp4Q/5N1n/1QQN1prr/2R2p2/QqP1B3/r1kqrP2/2Nn2R1 w - - 1 2 illegal: No possible last move
3k1N2/1p1rN2B/1KR2N2/n1rq2q1/r1B1bpnp/1P3Q2/QQR4P/r3N1q1 w - - 1 2 legal: proof: g4 d5 f4 f5 c4 a5 cxd5 a4 g5 a3 b3 e6 Bb2 axb2 Kf2 Be7 Ke1 Bf6 gxf6 e5 Qc1 exf4 Qc2 Ne7 Qd1 Ng8 Kf2 h5 e4 c5 a4 g5 d4 h4 d6 c4 e5 g4 d7+ Kf7 d5 f3 Ke3 f4+ Kd4 g3 Kc5 c3 e6+ Kf8 a5 f2 d6 g2 a6 c2 a7 c1R+ Nc3 b1Q f7 Qg6 e7+ Kg7 f8N Kf7 e8B+ Kf6 Ra2 Rc2 Nf3 Qd3 Bg6 Rd2 Nd5+ Kg7 Ra6 Rh6 Bh7 Kf7 Qe2 Qf6 d8Q Rh5 d7 Nc6 Ra2 g1R Kb6 Nh6 Qd1 Qfg6 Nf6 Ng4 Qc7 Ke7 d8N+ Bd7 Qe5+ Be6 Be2 f1Q Qd4 Ra5 Qc3 Rc8 a8Q Bf5 Rb2 Qg5 Qcc1 Rd5 Qa2 Rd4 Qcb1 Na5 Nc6+ Kf7 Qbc1 Be4 Ne7 Ra4 Qc3 Qg2 Qdc2 Rb1 Rc1 Ra1 Ne1 Rcc4 Qd1 Qg1+ Qd4 Rc8 Rc3 Rc7 Rbc2 Rd7 Rc8 Rd5 Bf1 Rc5 Qdb2 Qc4 Rc6 Rd7 Qf3 Qcd5 Nh5 Ke8 Nf6+ Kd8 Be2 Qgd4 Bc4 Qg1
4B3/BkppQp2/3B3n/R1qbbN2/1Pr1NR1N/Q6b/3n1P1B/1qq2qK1 w - - 0 1 illegal: No possible last move, all moves rejected
nQ1b4/2n1pNr1/4Pb2/3pp2B/1NQ1Q1K1/B1b1R1b1/3PQq1k/1RR3bb w - - 0 2 legal: proof: b4 b5 e4 h5 a4 a5 axb5 f6 g4 hxg4 c4 a4 e5 Rh7 c5 Na6 b6 Rh4 b5 Rb8 e6 Rb7 c6 Rh3 cxb7 Nb8 Qe2 Rh8 Qe5 fxe5 Ke2 g5 f4 c5 h4 a3 h5 c4 h6 g3 Kf3 g2 f5 c3 f6 c2 h7 g4+ Kg3 a2 Rh4 Bg7 f7+ Kf8 Ne2 g1B Nf4 Nf6 Rh2 Rg8 h8Q Ne8 Rf2 Bf6 Be2 Nc7 Bf3 Nba6 b8R Na8 b7 Qb6 Qh4 Kg7 Ba3 c1B Ng6 N6c7 Re2 Bb2 Re3 Bc3 Nh8 Ba5 Nc3 d6 Rb1 a1B Nd5 B1c3 Nb4 Qa7 b6 Bh2+ Kf2 Bd7 Rc8 Bc6 b8Q g3+ Ke2 g2 b7 g1B Bh5 Kh6 f8Q+ Rg7 Qe4 Kg5 Kf3 Bf4 Nf7+ Kh4 Qe8 Bd5 Qb5 Kh3 Qe2 Bg3 Qc4 Qb6 Qa7 Kh2 b8Q Bg5 Kg4 Bf6+ Qg6 Bh1 Qaa6 d5 Qab5 Rh7 Qge4 Qa7 Ree1 Qf2 Re3 Ne8 Qe2 Bd8 Rc4 Nec7 Rc5 Bb2 Rcc1 Bc3 Qbc4 Rg7+
1bRK2Q1/3nN1Qp/NrR1p3/b1b1b1R1/2p5/R2q3N/bBPPr3/1k3B1b w - - 0 1 legal: proof: g4 a5 e4 g5 b4 f5 bxa5 d5 h3 dxe4 Bg2 Nc6 Bf1 Ne5 Nf3 fxg4 Ng1 g3 h4 g4 Rh3 Nf7 Rh1 Ng5 hxg5 Be6 Ne2 Bf5 Ng1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Ke5 Kb4 a4 b5 f4 c5 f5 c4 g6 g2 f6 e3 a6 g3 a7 e2 g7 e1B f7 Rb8 a8Q Qd3 a5 Rb6 a6 Bb7 a7 Nf6 g8N Bg7 Nh3 g1B f8R g2 Rd8 Bc5 Rd5 g1B Qg4 e6 Ne7 Rg8 Rd6 Bg2 Rh2 Bh1 Nc3 Bge3 Ne4 Bg3+ Qf4 Bg1 Rg2 B3h2 Qg3 Nd7+ Kf4 Rf8+ Kg5 Be5 Rc6 Rf2 Bb2 Re2 Ra3 Bb8 Qg4 Bhe5 Qb7 Bgd4 a8R Bc3 Rg1 Ba7 Rac8 Bab8 Rb3+ Ka4 Rg3 b4 Ra3+ Kb5 Qc7 b3 Qd8 Ba5 Qg8 Kb4 Rg1 Bcd4 Nc5 Bf2 Qf4 Bfd4 Qff8 Bf2 Qfg7 Bfd4 Ba1 b2 Rg4 b1B Bb2 Ba2 Na6+ Kb5 Kh6 Bc5 Rg5 Be4 Qf6 Bh1 Kg7 Rf2 Kf7 Re2 Rc3 Ka4 Ke8 Qf3 Re3 Qd5 Kd8 Qd3 Bc3 Ka3 Qfg7 Bb3 Bb2+ Ka2 Reg3 Kb1 Re3 Ba2 Rf3 Qd4 Ra3 Qd3
4b3/R2P3b/1p1pnN1R/3K3r/1krP1B1Q/1p3Qnb/QbBN3r/n4QR1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 b4 axb4 h4 gxh4 c5 d6 c6 Qd7 cxd7+ Kf7 Ke2 h5 Kf3 c5 Ke4 e5 f4 c4 g4 b6 a4 c3 a5 b3 f6 Ke6 g5 c2 a6 h3 a7 h2 g6 h4 f7 h3 g7 Rh5 d3 Ba6 Be2 Bc4 Ra6 Ne7 g8Q Bg7 Ba3 c1R Qd2 Nbc6 Qh7 Nd8 f8R Nf5 Qa2 Rb8 a8Q Ng3+ Ke3 e4 f5+ Ke5 f6 Bf7 Ra7 Rc4 Nd2 Be8 f7 Ne6 Rg8 Bf6 f8Q Bh8 Rb7 Kd5 Bc1 Kc5 Ra7 Kb4 Qf1 Bb2 Ngf3 Rd8 Rg1 h1B d4 h2 Rh8 Bg2 Ne5 h1B Bd3 Bh3 Bc2 Bf3 Qd5 Be2 Qc6 Bd3 Ng4 Rc8 Nf6 Rc7 Kf2 e3+ Kf3 e2 Qhe4 Rc8 Rh6 e1N+ Ke3 Rc7 Qh4 Bh7 Qcg2 R7c5 Qgf3 Rcf5 Qfg4 Rf2 Qf3 Nf5+ Ke4 Rh2 Kd5 Ng3+ Bf5 Ng5 Be4 Nc2 Bd3 Na1 Bc2 Nf5 Nb1 Ne6 Bf4 Nc5 Nd2 Ne6 Rg4 Ng3+ Rg5 Nf5 Rg1 Ng3+
2N2b2/2k5/qN1R4/B2QPrrp/pr3N2/P1rnn2n/2BRKp1N/2Q1n1Q1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 f3 e5 Nc3 e3 Nb1 Bf5 Ke2 Be4 Na3 Bd5 Kd3 e4+ Kc3 e2 Nb1 e3 Kb2 Na6 Kc3 Be4 fxe4 Nb8 d4 Kd7 Kd3 e1R c4 b5 g4 h5 g5 f5 c6+ Kc7 d5 a5 a3 f4 e5 a4 d6+ Kb6 d7 h3 c5+ Kc7 g6 f3 g7 e2 Bd2 h2 Nc3 b4 Ra2 b3 Qc1 Nf6 g8Q b2 Qg2 Qc8 Nd5+ Kd8 Qf2 b1R Nf4 Kc7 Ba5+ Rb6 Bh3 Ng4 Rd2 Ne3 Bf5 Rg8 Qf1 Na6 d8Q+ Kb8 Qd5 Rb4 Qf2 Rf1 Qfe1 Qe6 c7+ Kc8 Be4 Rg5 Qed1 Qc6 Bg6 Kb7 c8N Kb8 Nb6 Kc7 Bf5 Rc8 Bh7 Qh6 c6 Qe6 Ngh3 Qh6 Nf2 Qf6 Rg1 h1N Ng4 Qd6 Nh2 e1N+ Kc3 Rf2 Bc2 Nc5 Rg4 Ncd3 Rg1 Rf5 Rg6 Rg2 Rf6 Rgg5 Re6 N1g2 Qg1 Nhf2 Rh6 Nh3 Re6 f2 Rg6 Qd8 Rd6 Rb5 Kd4 Qf6 Ke4 Qe6 Kf3 Nge1+ Ke2 Rb4 Qc4 Kb8 c7+ Kb7 Qa2 Qc4 Qb3 Qa6 Qg8 Rb8 c8N Kc7 Qd5 Ra8 Na7 Re8 Nac8 Re6 Rd8 Rc6 Rd6 Rc3
1Qq2Rb1/QrQ1n1NB/1pR1bB1N/4pp1B/K7/PPbk4/3n2nB/1nb5 w - - 0 1 illegal: No proof kernel
n3Nr2/Q1bB1K2/p5pN/2n3kb/1BPN1Rb1/PprbQ3/b7/1NB1R1b1 w - - 0 1 legal: proof: h4 e5 d4 exd4 b4 c5 bxc5 g6 h5 Qe7 h6 f5 g4 Qg7 hxg7 fxg4 Kd2 Ke7 Kd3 Kf6 Kc4 h5 Kd5 b5 c4 g3 e4 d3 f4 h4 a3 a6 f5 h3 c6 d2 c7 g2 e5+ Kg5 e6 b4 f6 h2 e7 Rh3 e8Q Bd6 f7 Ne7+ Ke4 Nd5 f8B Nb6 g8N Rc3 Ne2 g1B Qa4 b3 Nf4 d1B Nh6 Be2 Bh3 Be5 Bb4 Bd3+ Kf3 d5 Bd7 Bd6 Qe3 d4 Ra2 Be5 Rf2 Bd6 Ne2+ Bf4 Be8 N8d7 Qa5+ Nc5 Bd7 Rb8 Rf1 Na8 Qb6 Bf5 Qa7 d3 Rf2 d2 Nd4 Bd3 Rf1 Kf6 Kg4 d1B+ Kh4 Bh5 Rf3 Bb7 c8N Bbe4 Nd6 Rf8 Rf2 Bf5 Rf1 Be5 Rf4 Bg4 Kg3 Kg5 Ne8 Bc7 Qe5 Be3 Re1 h1B Qe4 Bg1 Qe3 Bhe4 Ng7 Kf6 Kh4 Bh5 Ne8+ Ke7 Kg5 Bfg4 Nd2 Bb1 Nf7 Ba2 Nb1 Be2 Kh6 Bef3 Kg7 Bfg4 Be6 Bc2 Nh6 Bd3 Bd7+ Be4 Ne6 Bd3 Nd6 Rf5 Kg8 Kf6 Nd4 Kg5 Ne8 Rf8+ Kg7 Rg8+ Kf7 Rf8+
B7/1qR2q2/Qp1k1BQ1/q1Rpp3/nNr1qR1K/1Pq5/r1QNP2r/2b4Q w - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 a5 fxg4 a6 b6 h3 g5 Nd2 g3 Nb1 Bb7 axb7 Nc6 h4 g4 Bd2 Ne5 Bf4 Nf7 Bc1 Ng5 hxg5 Rc8 Ra5 Rb8 Ra1 Ra8 b8Q d5 f4 Kd7 c4 h5 c5 a5 g6 e5 g7 a4 f5 g2 Kf2 d3 Kg3 d2 b3 a3 f6 a2 f7 Qf6 Nh3 g1Q+ Bg2 Qd4 Nf4 Qc3+ Nd3 Be7 f8Q Qf7 Bh3 Nf6 Qc2 d1R Bg5 Rc1 g8Q Ne4+ Kh4 Qa5 Bf6 Nc3 Rg1 Na4 c6+ Ke6 c7 Kd6 Nd2 g3 Bc8 g2 Rd1 g1Q Qa7 Qgg7 Qa6 Qh7 Rb1 a1Q Rf1 Q1c3 Qh6 Bf8 Qhg6 Bh6 Bb7 Qhg7 c8R Be3 Kh3 h4 Rc5 Rh5 Kg4 h3 Qh7 h2 Rf4 h1Q Nb4 Rh2 Kg3 Ra7 Ba8 Qe4 Qh3 Qb7 Kh4 Qgf7 Rb2 Ra1 Rb1 Ra2 Ra1 Qb8 Rc1 Rc7 Rb5 Rc4 Rc5 Rg2 Qh1 Qbb7 Rg1 Rf2 Rg5 Rg2 Rh5 Rf2 Rh8 Rg2 Rhc8 Rf2 R8c7 Rg2 Nf3 Bc1 Nd2 Rh2+
1RB4b/r3kN2/6b1/R1PbN1p1/2RpQnrn/1Q2PpBp/4R3/1K2qBr1 w - - 0 1 illegal: No proof kernel
2R5/1B6/pk1b2P1/2r1QrR1/R1RQNB1n/nPrp3p/2pq2N1/1QKb1b2 w - - 0 1 illegal: No proof kernel
rQ2n3/N3Rp2/rRQnp3/1R1nNk1B/1p1q1P1B/r4b2/Rp1NP3/K3b3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 h4 Kd7 a4 g5 d4 b5 Kd2 c5 Kc2 g4 Kb2 g3 d6 Ke6 d5+ Kf6 h6 e6 h5 g2 d7 b3 d6 b4 a5 c4 a6 Qb6 d8Q+ Kf5 a7 Qc7 h7 Ke4 h6 Nf6 d7 Bb7 Qd6 Bg7 Nd2+ Kf5 Ra2 Bc8 Ngf3 g1R Bh3+ Ng4+ Ne5 Bf6 Qc6 Bb7 Ka1 Na6 Qb8 Qd6 d8N Nc5 f4 Rf8 h8Q Bh4 h7 Be1 Bb2 Rg3 Bg2 Qd5 Bf3 Nf6 Bh5 Nce4 Ra6 Qd7 Rb6 Nd6 Bd4 Rd3 Bf2 Nfe8 Bh4 Rg8 Qg7 Re3 h8R b2+ Ka2 b1N Ka1 Nc3 Rh3 Re4 Rd3 Rf8 Rd5 Re3 Rdb5 Nd5 Nd3 Bg3 Qb2 Be1 Ne5 Rb3 Qc5 c3 Ndc6 Nec7 Qc4 Rd8 Re8 Ra3+ Qca2 Ra6 Re7 Nce8 Qa4 Ndc7 Na5 Bf3 Nac6 Nd5 Qb7 Rac8 a8R Rc7 Ra7 Ra8 Qb8 Qd8 Rab7 Qd7 Na7 Qd8 Ra5 Rc8 Qb5 Rc6 Ra2 Ra3 Qc5 Qd7 Rb5 Rca6 Qc6 Qd8 Kb1 Qb6 Ka1 Qd4 R7b6 cxb2+
3B1N1b/QPpp1k1N/N1n5/4Rp1R/2r3RB/2rPQq2/1n1rp2R/1b2b2K w - - 0 1 illegal: No proof kernel
1rrBn1Nn/1p1k1bBN/1r1pp1B1/P1RQB1p1/3R1Q1q/5P2/5b2/5KbQ w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 c4 d6 h4 g6 a4 g3 f6 e6 c6 g2 h5 b3 a5 b2 f3 Qb6 h6 Bg7 f7+ Kd8 f8B Ne7 c7+ Ke8 h7 Nf5 c5 Qb4+ Nc3 b1R c6 Rb2 Bg5 Qb6 Rc1 Qc5 Ne4 Qa3 Nh3 g1B Rc5 Rb6 Qd5 Rg8 h8B Qa4 Bd3 Ng3 Bd8 Be5 Nhg5 Nh5 Kf1 Nf4 Bfg7 Bed4 Nh7 g5 Rh4 Bd7 c8Q Na6 c7 Bdf2 Be5 Bc6 Bhg7 Ng6 Bb1 Rb8 Nef6+ Kf7 Rg4 Be8 Rd4 Rf8 Ng8 Nh8 Rd2 Qh4 Rd4 Ba4 Bc2 Ke8 Be4 Ra8 Qb8 Kd7 Bg6 Bc6 Qa7 Rb8 Qa8 Kc8 Qa7 Be8 Qa8 Bf7 Qa7 Kd7 c8Q+ Ke8 Qa8 Nc7 Qa6 Rc6 Qac4 Rb6 Qb4 Ra8 Qb8 Kd7 Qd2 Ne8 Qf4 Be1 Qa7 Rb8 Qa6 Bg3 Qe2 Be1 Qeh2 Bef2 Qh1 Nc7 Be7 Rfc8 Bd8 Ne8
Nnbk4/pp1rq3/1P3r1B/Q2pR1B1/1nb1R2R/1PKQ2p1/2rN4/3Qb2R w - - 0 1 illegal: No proof kernel
1B2BN2/4nR2/k1r2R1p/4KR1n/4PQpp/3b1bPp/N1q3RB/n2Q1r1q w - - 0 1 illegal: Other
R3Q1q1/2N4N/bbB1P2n/prpKB2p/4RpQR/6Rn/k1r2P2/B2q1r2 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 cxd5 exd4 Kd2 Kd7 Kd3 Kd6 Kc4 c5 e4 a5 g4 h5 b4 f5 b6 f4 b7 h3 e5+ Kd7 g5 h2 d6 Ke6 d7 d3 g6 d2 b5 Bh6 b6 Nc6 b8B Ra7 g7 Bg5 b7 Qf6 d8Q Nd4 Qe8+ Qe7 Ra4 Ne2 Nf3 Nh6 g8R Ng1 Na3 Nh3 Nb5 Rh7 Qe2 d1Q Bg2 Ra6 Bb2 Rd6 Rg7 Rd2 Ba1 Bf6 Rg3 Rc2+ Kb3 Kd5 e6 Rh8 Re4 Qg7 Ng5 Bd8 Bbe5 Qg8 b8R Bb6 Qg4 Ba6 Ra8 Rh7 Bf3 Rb7 Nh7 Rb8 Rhg1 h1R R1g2 Rf1 Rh2 Ng5 Rh4 Nh3 Ka3 Qd4 Nc7+ Kc4 Ka4 Kd3+ Kb3 Kd2 Qc6 Kc1 Qe8 Kb1 Bh1 Qd1 Bg2 Rb2+ Kc3 Rb5 Kc4 Rd8 Bh1 Rd2 Bg2 Qe1 Bf3 Rc2+ Kd5 Ka2 Be2 Rb1 Bb5 Qc1 Bd7 Rb5 Bc6 Qd1+
kN5Q/1n1qq1p1/3Qpn2/4bRP1/1N4pp/K3QP2/1B2QBRN/4rrbb w - - 0 1 illegal: No proof kernel
6r1/N1QQ2p1/3P2np/q3Qb1B/1NbR1BP1/p3pqK1/R5Q1/1knqBr2 w - - 0 1 illegal: No proof kernel
q2R2Qb/BRbK1Qp1/P2q4/4r2N/3n1nPB/1B1QN2p/1pp3r1/1r1B3k w - - 0 1 illegal: Other
2Q3b1/R2QQpNr/Bq3b2/pB2QPkb/2q3PN/p6p/4B1K1/1n1rR1n1 w - - 0 1 illegal: No possible last move
1q4R1/2N1Rp2/1BP2r2/nQ2b1Q1/pNBpkPp1/1n1n3K/3qN1N1/Rbr5 w - - 0 1 illegal: No possible last move, all moves rejected
R1q1k2B/2BNP3/p3B2K/rB2p3/1RbbNp2/q3Q1Qp/r1P5/nq2n1N1 w - - 0 1 illegal: No proof kernel
Q1Qr4/3PBQ1n/1kPKrN2/R1p3Np/1p2r1p1/q1Rn2q1/b2b4/1NQ4B w - - 0 1 illegal: No proof kernel
B3b1B1/2PN1R1Q/3b1Kp1/1R2npqN/Q1r2Rp1/3R1Pr1/n1p5/3Qn1kq w - - 0 1 illegal: No proof kernel
R1N5/b1P2pRQ/NbR2r2/B2b4/3Rp1B1/7p/P2rqnNp/1K1nQqk1 w - - 0 1 illegal: No proof kernel
1N1K4/kNp5/pn1B1nn1/1R1R1rq1/PQ3N2/1Q3P2/p1bpN2r/1R3Bqb w - - 0 1 illegal: No proof kernel
qn3R2/1p1p2N1/1bRPrNk1/PQ1bp2q/1pQQ4/3KR1B1/rBq5/1Q3n2 w - - 0 1 illegal: No proof kernel forced: wxLB
k2KB3/pNRn3r/Pp1b1pQn/2b2NP1/4q1N1/1b1qp2r/1Q3N2/3QR2B w - - 0 1 legal: proof: f4 c5 g4 h5 b4 d5 Bb2 h4 Be5 g5 bxc5 Qc7 fxg5 Qd8 e4 dxe4 Bg3 hxg3 Ke2 Kd7 Ke3 Kc7 Kf4 e3 Ke5 g2 a4 b6 c4 Kb7 d4 e6 h4 e2 a5 e1B c6+ Ka6 c7 Kb7 g6 Qe7 a6+ Kc6 h5 Bc3 g5 Nh6 c5 Qe8 Kf6 e5 d5+ Kd7 d6 Kc6 d7 Ba5 g7 e4 g8Q e3 Nc3 Bb4 Rc1 Bb7 c8N Ba5 d8N+ Kc7 c6 Qd7 Ne7 Bc8 Nb7 Qe8 Qg6 Be6 Nf3 g1Q Ne4 Nf5 h6 Qg3 h7 Qg4 Nf2 Qg3 Nh2 Bb4 Bb5 Bc5 Re1 Bb3 Nhg4 Nh6 Nf5 Bfd6 Rc2 Kc8 c7 Qe4 Be8 Qg1 Rc4 Qf1 Rc2 Qfd3 Rc3 Rg8 h8Q Rg7 Bc6+ Qe8 Bh1 Rh7 Qhg7 Qee4 Rc2 Kd7 c8B+ Kc7 Rc4 Nc6 Rc3 Ne5 Bd7 Rah8 Be8 Kb8 Rc4 Ka8 Rc1 Bd4 Rc7 B4c5 Nd4 Rf8 Qh8 Nf5 Qhg7 Rh3 Qh8 Nh6 Qhg7 Rh8 Nf5 Rh7 Qh8 Nc4 Qhg7 Bf4 Qh8 Ne5 Qhg7 Bd4 Ke7 Nd7+ Qe5 f6+ Kd8 Bc5 Qb2 Bfd6
1R3r1q/1RN4Q/Q4R2/2nPB1k1/1n2pnNN/nRbbpKP1/5p1p/1B3r2 w - - 0 1 illegal: No possible last move, all moves rejected
1b5R/7n/1k2nrrp/2R1ppNB/P1PQp2K/5N2/n1Q2Nq1/nbBR1N2 w - - 0 1 illegal: No proof kernel
3r4/1bnQ2bk/1QPp1pNr/1r1Q1Pp1/NQB1B3/3rp1q1/n3R3/2RKB3 w - - 0 1 legal: proof: e4 c5 d4 h5 dxc5 b5 g4 hxg4 a4 Nc6 e5 Nd4 e6 Nxe6 axb5 Nd4 Be3 Ne2 Bd2 Qb6 Bc1 Qd8 f4 a5 b4 g5 h4 e5 c4 f6 h5 Kf7 h6 Kg6 b6 e4 h7 g3 f5+ Kg7 c6 e3 b7 g2 b8Q d6 b5 a4 b6 a3 c5 a2 c7 Ra4 b7 Ra6 Qd5 Ra4 Nh3 g1R Nc3 Qd7 Bd2 Rc4 Nf4 Qb5 Rh2 Rd4 Rc1 a1R Na4 Rh1 Ng6 Nc3 Re2 Na2 Kd1 Ne7 c6 Rb4 Be1 Rh6 Bg2 Rb3 Bh1 Rab1 Be4 Rg8 Qa7 Qb4 b8Q Bb7 c8B Rd3+ Rd2 Qd4 Be6 Rb5 Qb6 Qe5 Qe8 Qg3 Qd7 Rdb3 Re2 Rh8 Qd2 Rd3 Bc4 Rg8 Qdd8 Nd5 h8Q+ Kf7 Qh7+ Bg7 Qa8 Rb8 Qaa5 Rc8 Qb4 Rd8 Qh8 Rd7 Qa8 Rd8 Qc8 Kg8 Qe6+ Kh7 Qd7 Rc3 Qdd4 Nc7 Qd5 Rd3+
n3N2B/3n3b/pqB2P1k/R2P1r1n/R1p1rp1Q/3p1BBn/1NQ5/R2K2b1 w - - 0 1 illegal: No proof kernel
Q1Rb1r2/3b1N1p/1Q5r/3N1pqp/3nR1P1/1K2nPN1/Nn2pRB1/2B3kn w - - 0 1 legal: proof: e4 b5 h4 c5 b4 d5 bxc5 dxe4 a4 g6 h5 gxh5 axb5 Qc7 Rh3 Qa5 Rh1 Qd8 d4 Kd7 Kd2 Ke6 Kc3 Kd5 g4 e5 c6 f5 c7 a5 f3 a4 b6 e3 b7 a3 Qd2 e4 Ra2 e2 Bg2 e1N Qf2 e3 Ne2 Nc6 b8Q Ra6 Kb3 Be7 Qa8 Nd3 Re1 Bd7 c8R Nb2 Ng3 Nf6 c3 Ne4 c4+ Kd6 d5 Ke5 d6 Kf4 c5 Rf8 Qg1 Nf2 Nc3 Nh1 Re2 Bh4 Rf2 Qg5 Ra1 Nb4 c6 a2 c7 Nc2 Rb1 Qg7 Ra1 Bd8 Rb1 Qg5 Ra1 Bb5 d7 Rh6 Rb1 Bf6 d8N Bd7 Nf7 Nd4+ Ka3 a1N Na2 Bd8 Kb4 Nc4 Kc3 Nac2 Rb4 Nd2 Rc4 e2 Kb2 Ke3 Kc3 Nc6 Rf4 N6d4 Kb2 Kd3 Re4 Ne3 Ka3 Ndc4+ Kb4 Ndc2+ Kb3 Nb2 Qe1 Na3 Qea5 Nb5 Qb6 Nd5 Rb8 Ne3 c8N Nd4+ Ka3 Kc2 Ne7 Kd1 Nd5 Ke1 Rc8 Rg8 Bh3 Rh8 Rh2 Rf8 Bg2 Kf2 Kb4 Ne6 Kb3 Kg1 Bf1 Rf6 Rf2 Rh6 Bg2 Nd4+
kN3Nn1/bnB2bpp/2q1P1R1/6NP/r3R2p/4QB2/p5b1/QbBKr1N1 w - - 0 1 illegal: No proof kernel
n4NqN/kB2Qp2/Pbr2R1b/b6p/2pBKNP1/n5rp/QN2R2R/5b2 w - - 0 1 illegal: No proof kernel
Q7/Q1P1RR2/2rn2p1/b1BBB1p1/4R1pk/K2n2Np/1P1nqn2/N1R3rb w - - 0 1 illegal: Other
n1KN1QB1/2p1P2R/P5B1/n3b2N/qpRp1Rb1/k5B1/p2b2QB/1r2b1r1 w - - 0 1 illegal: No proof kernel
5Q2/Rp1N1b1k/1bNpP1nB/1rnp1PQ1/K5R1/6p1/N2nBB1N/3q2rn w - - 0 1 illegal: No proof kernel
nQNQb2R/Kp3pq1/rp2P1Q1/3b2Q1/1Bb3R1/2rp4/B1P3nN/3Nk1b1 w - - 0 1 illegal: No possible last move, all moves rejected
4kB2/N1q3BQ/4N1pB/K1Rn1pPr/b1Qn1p2/r1rN1P2/2pR2n1/1N4q1 w - - 0 2 legal: proof: h4 d5 a4 b5 axb5 e6 c4 dxc4 e3 g6 h5 Bg7 h6 Na6 hxg7 Nb8 Bd3 Qh4 Be4 Qd8 Bf5 exf5 b4 c5 d4 a5 Kd2 h5 Kc3 a4 g4 a3 d5 a2 b6 f6 d6 h4 b7 h3 e4 h2 b5 Ra3+ Qb3 Ra7 d7+ Ke7 e5 Kf7 b6 Na6 b8N Nh6 g8Q+ Ke7 f3 Qe8 b7 Rh7 e6 Qf7 Nh3 Nc7 Rd1 h1Q Rd2 Qg1 Nf2 Ra3 Nd3 f4 Bb2 Rh8 Qh7 f5 d8B+ Ke8 Nc6 Bd7 Na7 Ba4 b8B Qd7 g5 Ng4 Be7 Ne3 Bf8 Ng2 e7 Qd6 Bh6 Nd5+ Kc2 Qd7 Bbg7 c3 Bd6 c4 Bb4 Qc7 Bc5 Kd7 e8N Kd8 Bcf8 Kd7 Bd4+ Kd8 Ng7 Kd7 Ne6+ Ke8 Qg8 Rh7 Bhg7 Rh4 Bh6 Rh5 Bdg7 Qd4 Kc1 c2 Qh7 Qg1+ Kb2 c1N Qb4 Rc3 Qb3 Ne2 Ka3 Nb6 Kb4 Nd4 Ka5 Nd5+ Ka6 Rc2 Qb4 c3 Qc4 Rc1 Na3 Rc2 Rc1 a1R Nb1 Ra3 Qb3 Rb2 Qc4 Rb6+ Ka5 c2 Re1 Rc3 Re5 Rbb3+ Ka6 Nb6 Rc5 Ra3 Ka5 Nd5+
5Q1r/1N3bqk/rRN4p/qBBn2PR/1r1b1p1B/p2K1P2/2BqpQR1/8 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra4 Na6 Ra2 Nb4 Ra3 cxd4 Ra1 d3 Bg5 d4 Bc1 Nd5 exd5 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 f5 b4 Kf7 c4 Kg7 g4 a5 b6 e5 f3 f4 d6 h6 b5 a4 d7 h3 c5 e4 c6 h2 c7 a3 b7 Qf6 d8B Qg5 b8Q Be6 c8B Be7 b6 Bc4 b7 Bb5 Qe2 Bc6 Bf5 Nf6 Nc3 Bd5 Na4 Ra6 Qf2 Bf7 Ra2 Nd5 Nc5 Bf6 Ne2 Qg6 Qa8 Kh7 b8R Be5 Nb7 e3+ Kd1 d2 Kc2 d1R Bh4 Rd3 g5 Rb3 Bd2 Rb5 Bb4 Rbb6 Be7 Rb4 Bc5 Bg7 Kd3 Bf6 Ke4 d3+ Nd4 d2 Bb5 d1Q Re2 Qa4 Kd3 Qa5 Nc6 Be5 Qg3 Bg7 Rg2 e2 Qf2 Bb2 Re8 Bd4 Re6 Ra4 Qf8 Rb4 Rhg1 h1Q Rd6 Qh2 Rh1 Qg1 Nb8 Qa1 Kc2 Nb6 Bg3 Ra7 Rh5 Qg1 Bh4 Nd5 Rb6 Ra6 Nc6 Qh1 Kd2 Qf1 Bc2 Qg1 Bd1 Qg7 Kd3 Qe1 Bc2 Qd2+
2NRB3/1pP5/1P1q1B1b/N3N2K/2Qp1k2/qrnp1n1Q/1R2Qp2/N1rr3q w - - 0 1 illegal: No proof kernel
Q1q1n2b/1p2rQpB/B6K/Nr1Pk3/q2p1p2/2qr1R2/N4PR1/1nRR2B1 w - - 0 1 illegal: Other
3B1N2/QRb5/p2p3p/5N1B/2PPq1Qr/K1q2B1r/2R2pqk/1NnB2nn w - - 0 1 legal: proof: f4 b5 h4 g5 b4 gxh4 f5 c5 a3 Ba6 bxc5 b4 f6 Bb5 a4 exf6 axb5 f5 Rh3 f4 Rh2 Qb6 Rh1 Qd8 d4 Ke7 Kd2 Kf6 e4 Kg5 g4 f5 c4 f3 Kc2+ f4 Kb2 a6 c6 h3 e5 Kh4 c7 Kg3 c8Q f2 g5 b3 g6 d6 b6 h2 e6 f3 g7 Nh6 g8B Nf7 e7 Nd7 e8B Nc5 b7 Be7 b8N Ng5 Ra2 Nh3 Bh5 Nd3+ Ka3 b2 Bg5 Nc1 Be2 f1Q Nd7 f2 Bd5 Qg2 Nf3 Ng1 Nh4 Qa5+ Qa4 Rb8 Bd1 Bd8 Nf8 Bc7 Bd8 Qc3+ Qb3 Rb5 Bd5f3 Rf5 Qa8 Rf4 Qa7 Kh3 Nf5 Rh4 Nd2 b1Q Rc2 Nge2 Re1 Ng1 Re7 h1N Rg7 Kh2 Re7 Qca1+ Qa2 Qb7 Nb1 Qe4 Rf7 h6 Rg7 Rg8 Rd7 Rg3 Rf7 Bb6 Rb7 Qc3+ Qb3 Qce1 Qb5 Rgh3 Qd7 Bc7 Qg7 Qd2 Qg4 Qc3+
2q1BrN1/2BN4/Pp1p4/1Q3BKN/1P3Rb1/1bqQ1pn1/1b1N2pk/2q1Rn2 w - - 0 1 illegal: No proof kernel
K1RR1nR1/1b2Bqp1/1b1QB2k/Qr1Np1Np/1P6/1R2n1pb/5n1P/1q3Q2 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 e4 a5 Ra3 d5 Rc3 d3 Ra3 d4 Ra1 Ra7 Bd2 Rd7 Bc1 Rd5 exd5 Bf5 Qe2 Bd7 Qd1 Bc8 Kd2 Kf7 c4 Kg6 b4 e5 f4 h5 f5+ Kh6 d6 a4 b6 g3 c5 a3 b7 a2 c6 Qb6 d7 Na6 d8Q Kh7 b8Q Ne7 c7 Qc5 f6 Qa5 f7 Kg6 Bh3 Nc5 Nc3 Ne6 Nd5 Ba6 c8R Nf5 Qbd6 Ne3 Nf3 Kh6 Rb1 a1Q Rb3 Qc7 Ng5 Qb1 Qf1 Be7 f8R Qb7 Q8c7 Bd8 Qcb6 Qf7 Qa5 Bb6 Rfd8 Re8 Bg4 Re7 Rg8 Rc7 Rg1 Rc5 Rg2 Rb5 Rf2 Qa7 Rff8 Qc7 Rfd8 Qf7 Qe7 Nf8 Be6 Qf4 Qd6 Qf7 Ke1 d2+ Ke2 d1B+ Kd2 d3 Kc3 Nc2 Kc4 Bg4 Be3 d2 Bc5 d1N Nf4 Qa2 Kd5 Nf2 Kc6 Ne3 Nd5 Qf6 Qe2 Qb1 Qf1 Ba7 Kc7 Bb6+ Kb8 Bh3 Ka8 Qfg6 Qb8 Qe8 Be7 Qf7 Qd6 Bb7+
3N2rr/qK6/Npn2B2/PQp2N1p/QpRb1k2/3bq3/BRP3B1/bq3N2 w - - 0 1 illegal: No possible last move
kb1bQ2q/pnq2Q1N/1QpR2R1/P3Rp2/1B5n/2r1p2b/K1PQ4/q1BN4 w - - 0 2 illegal: No possible last move, all moves rejected
Q3RqBB/3kN1Pp/pn1r1bpK/R4R1p/1B1B2Q1/8/P3n2q/n1q3Nb w - - 0 1 illegal: No proof kernel
RB5b/5p1n/pK1p1P2/N1rkPqQ1/B2Nbn2/1R4np/n1Q1Q2R/6nR w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 cxb5 Ne7 b6 Ng8 b5 Nc6 a5 Rb8 a6 Rb7 axb7 Nb8 Kd2 Ke7 Kd3 Kd6 Kc4 h5 e4 c5 g4 h3 f4 a6 f5 h2 g5 d3 f6 h4 g6 d2 g7 h3 Ra2 Rh5 Na3 Ne7 g8Q Nd5 Qe2 d1N Nf3 Bg7 Nd4 Bh8 Qg5 N1c3 Qc2 Qe8 Bf4+ Qe5 Bg3 Nf4 Be2 Ng2 Bd1 Nf4 Qe2 Qf5 Ba4 Ke5 Rc2 Na2 Rb2 Nc6 b8R Bb7 Ra8 Ne7 Rb3 Bc6 b7 Ng6 b8R Nf8 b6 Nh7 b7 Kd6 Rc8 Ke5 Rc7 Kd6 b8Q Bb7 Rf1 h1N Qc8 Bc6 Bh2 Ng3 Rh1 Bb7 Nc6 Ke6 Na5 Ke5 Nb5 Bc6 Bg1 d6 Nd4 Nc1 Kc3 c4 Kb4 c3 Rb7 c2 Rb2 Nb3 Bf2 c1N Rb5+ Bd5 Qcc2 Nd2 Rb3 Nf3 Rh2 Rh4 Rb1 Nb3 Rbh1 Nc1 Ndc6+ Ke6 e5 Nfh5+ Nc4 Rg4 Ka5 Na2 Ba7 Ng1 Bb8 Bg2 Rb2 Kd5 Kb6 Re4 Rb4 Nf4 N4a5 Rc4 Nd4 Rc5 Rb3 Be4
NN3k2/1Q1p1n2/rp2PB2/R2n3b/1n2n1R1/B1nP1p2/1p1R1QBB/2rqK3 w - - 0 1 illegal: No possible last move, all moves rejected
nr4q1/BBbQRN2/1np3pb/kbP2RNp/2p5/3B1QR1/3KP3/1R2n2b w - - 0 1 illegal: No proof kernel
1nn3Q1/q2P2nQ/k1bBbN2/2K5/3Qp1Q1/1pppr3/bbP1R1N1/1BB3R1 w - - 0 1 illegal: No proof kernel
2N2q2/1Q4bR/1N1n2r1/1pn2B1P/1N2pnp1/Bp1RK1N1/rPQ4B/krr5 w - - 0 1 illegal: No proof kernel
7b/p1BBnkNQ/K1N4Q/3RPp1r/p3Nqb1/P1pQ3b/1r2N3/r2R3b w - - 0 1 illegal: No proof kernel
r3q1RR/2n3r1/3nR3/3p1Bp1/1QP2r1B/p1B2pP1/1b1NBrQ1/2K1k1Nn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 Bd2 Bb7 Be3 Be4 Bc1 Bg6 hxg6 Be7 Nd2 Bd6 Nb1 Bf8 Kd2 Ke7 c4 Kd6 e4 Kc5 e5 Kb4 g7 a5 b3 h5 e6 f5 e7 d5 e8B d3 b6 a4 b7 f3 Ra2 h4 Rb2 a3 Ra2 f4 Nc3 f2 Bg6 h3 Qe2 f3 Bb2 h2 Bf5 Rh7 Nb1 Na6 b8B Nf6 g8R Qe8 Bg3 Nc7 Bh4 Rg7 Kc1 Ne4 Nd2 Nd6 Ba1 Be7 Rb2 Kc3 b4 Bf6 b5 Be5 b6 Bd4 b7 Be5 Qe1 Bd4 Be2 f1R g3 Rf2 Qf1 Be5 Qg2 Bf6 Nh3 Be5 Re1 h1N b8Q Bd4 Ng1 Bf6 Nf1 d2+ Kd1 Kd4 Kc2 d1R Nd2 Ke3 Qb4 Be5 Rb1 Bd4 Bc3 Bf6 Ne4 Rd4 Nd2 Rf4 Kc1 Be5 Qa5 Bf6 Rb8 Bd4 Bb4 Ba1 Bc3 Qe5 Qb4 Qe8 Rh8 Rf1 Bd7 Qe7 Rbg8 Qe8 Bd1+ Kd3 Re6 Rf2 Reh6 Ke3 Bf5 Rf1 Qh3 Kf2 Qg2+ Ke1 Be2 Rf2 Re6 Bb2+
4B3/B1pQpb1N/RP4Br/pb1n3n/1N4p1/1KbBRbN1/3Qn1Pk/1q6 w - - 0 1 illegal: No proof kernel
bB4N1/1Q5R/Bp1Rp1Q1/n1bn1pP1/2nK4/1r1bBPpb/k2qQ3/2Q2N2 w - - 0 1 illegal: No proof kernel
3k1r2/2R3p1/r2N1nn1/2QQ1PB1/N1B3P1/r1Nn1p1K/1q2RppN/2r2Qb1 w - - 0 1 illegal: No proof kernel
K6B/2pN2r1/n1Q2rr1/1Q2q1k1/1QP1B1pp/RRbn2Np/1B4P1/3Bn1n1 w - - 1 2 illegal: No proof kernel
2R1Kb1B/pB1p3p/2nR4/4bQP1/1kn5/1b2Nb1R/Rp1Pr3/Q1N1q1Bn w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a3 gxh4 e5 Na6 e6 Rb8 bxc5 b4 a4 Rb5 axb5 fxe6 Ra5 e5 Ra1 e4 Ke2 e5 Ke3 Ke7 g4 b3 f4 h3 c4 h2 f5 Bb7 c6 Kd6 f6 Kc5 f7 Qf6 g5 Ba8 b6 Nb4 c7 Nd3 c8R+ Kb4 b7 Qa6 b8B Nc5 Bg2 Qd6 Ne2 Qe7 Ra2 Bd5 Nbc3 Na4 c5 Nb2 c6 Be6 c7 Nc4+ Kf2 e3+ Kg3 e4 Kf4 Qe8 Bb2 Ne7 Qa1 Nc6 Nc1 e2 Nd1 e1B Ne3 Rg8 Be5 b2 Bh8 Bd5 Kf5 Bg3 Kf6 Be5+ Kf5 Qe7 Re8 Rg6 c8R Re6 Bc7 Rh6 Bb6 Re6 Rf1 h1B Rf3 Rh6 Rh3 Re6 Bf1 Bf3 Bg2 Bfg7 Rg8 Bf8 Rg6 Qe8 Bh1 Re7 Rd6 Re6 Nf1 e3 Bg2 e2 Bg1 e1N Ne3 Nd3 Bh1 Bh6 f8Q Nf2 Bg2 Nh1 Qf6 Bd4 Qg6 Re5+ Kf6 Bf8 Qc2 Nb6 Qf5 Bb3 Rg3 Nc4 Rh3 Qd8+ Kf7 Qc7 Ng4 Re2 Ne3 Be5 Ke8 Qb6 Nd1 Qf2 Ne3 Bg4 Bd5 Bf3 Be4 Qe1 Bd5 Nb8 Bb7 Nc6
2rNR3/Qn6/BKNrQ1pB/2p1q1P1/Bpb2qQ1/k2P2r1/4p3/1BR1br2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 c4 Nd7 h5 Ndf6 h6 g6 cxd5 Nh5 e5 Ng7 e6 fxe6 hxg7 e5 Qb3 e4 Qa4+ Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 h5 f4 e6 g4 c6 f5 e3 f6 h4 a5 e2 a6 e1R a7 b3 f7 h3 Nc3 h2 Nh3 b2 Ne2 b1Q Nhf4 Ne7 g8B Bh6 f8Q Qf5 Qg7 Qe8 Ra6 Rb8 a8B Rb6 Ra3 b4 Re3 e5+ Kc4 c5 Nd4 e4 Nfe6 Re2 Nc6 Rg2 Ned8 Rg3 Qf6+ Kc7 Qe6 Qf4 Bb7 Nf5 Ba6 Bg7 Bd3 Bc3 Bb1 Bd7 d3 Be1 Rf1 h1R Bf7 Qe7 Be8 Qg7 Qf3 Qge5 Re2 e3+ Qe4 Rb7 d6+ Kb6 Bd2 Bc8 d7 Rc7 Rg1 Bb7 Rf1 Rc8 Qd4 Rf8 Rg1 Rf6 Qe4 Bf2 Rc1 Rf1 Qd4 Be1 Qe4 Kc7 Kb5 Ba8 g5 Bb7 Bc3 Nd6+ Ka5 Ba8 Qg4 Nb7+ Kb5 Kd6 Kb6 Re6 Qef5 Kd5 Qf6 Rd6 Qe7 Qh8 Bg7 Qh2 Bh6 Qe5 Rf2 e2 Rf8 Qf2 Nf7 Qff4 d8Q Na5 Qdd7 Bb7 Bb5 Ba6 Qa7 Nb7 Ba4 Bc4 Nd8 Rh1 Bb5 Rf1 Ba6 Rd7 Nb8 Kd4 Qee6 Rd5 Ba4 Rd7 Bbc2 Kc3 Bb1+ Kb2 Re8 Rd6+ Nbc6 Ka3
2B2q1B/1p3r2/q3N1P1/2qb2BK/2N4R/1nppQp2/N2q1Pkr/1Q1BbR2 w - - 0 1 legal: proof: d4 a5 h4 d5 b4 axb4 c3 e5 h5 Nd7 h6 Nb6 dxe5 d4 c4 Nd5 cxd5 gxh6 Ba3 h5 Bc1 h4 e4 Kd7 Ke2 c5 Kf3 h5 g4 f5 a4 b3 a5 f4 g5 c4 e6+ Kd6 g6 Ke5 e7 h3 e8B h2 a6 d3 d6 b2 a7 h4 d7 h3 Kg4 Nf6+ Kg5 Bb4 Be2 Be1 Na3 c3 Nc4+ Kd4 e5 Ke4 e6 b1Q e7 Qbb6 Qc2 Qa6 Bd1 Rb8 Bf7 Qf8 d8B Nd7 a8N Nc5 e8Q+ Be6 Qb1 Nb3 Ne2 Kf3 Nc7 Bd5 Bf6 Kg2 Be6 f3 Bc8 Rh6 Rf1 h1Q Bh8 h2 Qe3 Qg1 Bd2 h1Q Ra4 Rh2 Nc1 Ra8 Na2 Qc5 Bg4 Rf8 Bc8 Rf7 Kg4 Rhh7 Ne6 Qh6 Bc1 Qhf8 Bd2 Rh2 Kg5 Kh3+ Kh5 Qh1 Na5 Kg2+ Rh4 Rh3 Nc4 Qh2 Qe4 Qf4 Be3 Rh2 Qd4 Q4d6 Bg5 Qf4 Qe5 Qc1 Qe3 Qd2
1B3b2/qpQN3B/1P1BR1N1/1nRR3n/3KpP2/k3prpR/2r3Q1/rq2r3 w - - 0 1 illegal: No proof kernel
K1N1nbnQ/R1p1p3/p2N2B1/PQNn2B1/5N1n/5r2/3q1RpP/2B2qkb w - - 0 1 legal: proof: g4 g5 e4 h5 c4 b5 Bd3 bxc4 Bf1 d5 f3 dxe4 gxh5 a6 f4 g4 Bh3 Ra7 Bf1 Rb7 Kf2 Rb5 Ke1 Rg5 fxg5 Bf5 Ke2 Be6 Ke1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 f5 b4 c3 a4 g3 h6 f4 a5 e3 g6 f3 b5 c2 g7 e2 b6 e1N h7 f2 b7 Ke6+ Kc5 Ke5 d4+ Ke4 d5 Nc6 b8N Nd4 d6 Bb7 d7 Qe8 d8N Bc6 Qe2+ Kf5 Ne6 Qd8 Nc3 Nh6 g8Q Bd7 Qb5 Ndf3 Rb1 Ng5 Nge2 Kg4 Ne4 Kf3 Nd6 Ngf7 Nc6 Ng2 N2f4 Nh4 Na7 Bc6 Bd3 f1Q Bg6 Kf2 Nac8 Bg2 Rg1 Bh1 Rb2 g2 Kc6 Qd7+ Kb7 Qd8 Qg7 Ng8 Ka8 Qd7 Nc5 Qd8 Bd2 c1N Rb3 Ne2 Bc1 Nc3 Rb2+ Ke1 Rf2 Nd5 Qa1 Nfh6 Qab2 Ngf6 Qd4 Rg8 h8B Ne8 Bf6 Rg7 Bg5 Rf7 Qh8 Ng8 Rb2 Rf5 Rb4 Kf2 Rb1 Qc4 Rd1 Qd3 Rd2+ Kg1 Rf2 Rf7 Qd7 Qc4 Rb7 Qf1 Qb5 Rf6 Ra7 Qd7 Nfd3 Rf3 Nf4 Ne3 Nde4 Qd2 Ned6 Nd5
N2N4/RRn4n/RK2p1Q1/1q1r4/1rbpP2B/N4pqn/N2Pp1Qn/3Bk3 w - - 0 2 illegal: No possible last move, all moves rejected
2r1bQ2/2p2QpB/qrRK2N1/r1PnR3/R1pp1Nk1/nP1r1R2/qQ6/2B5 w - - 0 1 illegal: Other
k1n5/q1pbb1p1/Nr6/P1P2RBp/R1N2Q1B/n1q1b1R1/1b1Q2p1/3B1K1B w - - 0 1 illegal: No possible last move, all moves rejected
q1B1Q1Q1/B1k1npR1/1n2R1p1/pRb5/6rQ/1Rr3P1/1P2K1np/q1n2N1N w - - 0 1 illegal: No extended proof kernel
q5B1/kq1R4/3q1BPN/n3p2Q/2bp2N1/4Qr1p/1qp1P3/RQbNQr1K w - - 0 1 illegal: No proof kernel
3B1N2/2Rn4/3Q2n1/p1qrNNrK/1RBrpN2/7p/P2kpP1Q/B2r1bq1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Bg5 hxg5 Qb6 Bb2 Qc7 Bc1 Qd8 Ke2 Kd7 d4 Kc6 c4 e5 d5+ Kd7 c6+ Kd6 c7 Kc5 g6 Kb4 d6 a5 d7 b5 g7 h5 c5 e3 c6 g2 Bb2 g3 Kf3 e2 Nd2 h4 Kg4 h3 Nc4 Rh6 Rc1 Ba6 c8Q Qe7 d8B Rh5 c7 Qc5 Ba1 Nd7 Qb8 Ne7 g8N Ng6 c8N Rh4+ Kg5 Rd4 Kh5 Ra7 Nh6 Rc7 Nf3 g1R Ne1 g2 Ne7 Rc6 Qd3 Rcd6 Nhf5 R6d5 Qd1 Nh8 Rc2 Ng6 Rb2+ Kc3 Nd3 Qa7 Nf4 Qc5 Rh2 Rh1 Qd6 g1Q Rg2 Rh2 Rg5 Rg2 Qb1 Rg4 Qe4 Rg3 Qg2 Rg4 Rb4+ Kc2 Nb2 Kd2 Qh2 Rg2 Rg4 Rg3 Rh4 Rg5+ Kh6 Qc7 Ng8 Rd3 Ng2 Qa7 Rhc4 R3d4 Rc6 Qc5 Ra4 b4 Rc7 b3 Nf6 Bb7 Nd3 b2 Rb4 b1R Nh7 Rd1 Ngf4 Bc6 Bg2 Ba8 Be4 Bb7 Nf8 Bc6 Nb2 Bb7 Bd3 Bc6 Bc4 Ba8 Qb6 Rd6 Nbd3 Bg2 Qa6 e4 Ne5 R6d5 Qd6 Rg3 Kh5 Bf1 Nh6 Rg2 Nf5 Rg5+
6B1/p1r2BQb/P1Q2B1p/1N3n2/1RK1pn1r/PR1r1p2/k4rrb/B2R1N2 w - - 0 1 illegal: No proof kernel
N1Nn3r/1BQ5/5prb/Q1Nb1Q1r/KP6/BR1p1pR1/kNp2P2/4rb1n w - - 0 1 illegal: No proof kernel
2r5/RBp3pQ/1Q1n1N1N/2P2P1N/2r1Rp1B/K5Rn/brp4R/k1b1b1b1 w - - 0 1 illegal: No proof kernel
r4Nnk/B1Nb3B/1pQ2p2/R1bPpQ2/1Pp5/bQ3R2/2K3rn/1Bb1n1B1 w - - 0 1 illegal: No possible last move, all moves rejected
1n2N2b/Np1N1R1K/1rP3B1/4Bp2/1k1Nb1r1/p1R5/bpBn1PnQ/4n2Q w - - 0 1 illegal: No proof kernel
2n1R3/1p1k2pP/2nN1p2/3b2K1/2N4Q/1rB3bp/2nRBPB1/bNQ1rnB1 w - - 0 1 illegal: No possible last move, all moves rejected
5Q2/1B1npBqr/6b1/p2NQ1Rp/pqRK1r2/PNB3rP/4Bq2/1r4Nk w - - 0 1 illegal: No possible last move
2rbbQ2/kq1rp1q1/2pp1NRB/B1N1N2q/3P1pb1/b4P2/2QK4/NB5R w - - 0 1 legal: proof: c4 b5 b4 h5 g4 hxg4 Nf3 a5 Ba3 axb4 Bc1 b3 Ng1 b4 e4 d6 e5 Kd7 Bg2 Ke6 Bf1 Nf6 Nh3 Nbd7 Ng1 Kf5 e6 Ne4 exd7 Nc3 Bg2 Kf6 Bf1 Nb5 cxb5 Ke6 h4 Kd5 a4 Kc5 a5 g5 b6 f5 h5 c6 b7 g3 b8N g2 a6 Kb6 h6 g4 h7 b2 a7 b3 Qc2 g3 Bd3 Qe8 d8N Bg7 Nb7 Qh5 Nf3 g1B Nc5 g2 Na3 b1Q Ne5 b2 f3 Rd8 h8B Rd7 Be4 Bf6 d3 Bf2+ Kd2 g1Q Bg7 f4 Bh6 Qgg6 Rg1 Qg7 Rg6 Qa2 Bf5 b1B Bb2 Qc4 Bc3 Qb4 Be4 Ba2 Rh1 Bf7 Bf5 Qb5 Bb4 Bd4 Be4 Bb2 d4 Be8 Bd3 Bh4 Bf5 Qa6 Be4 Qb7 Bc3 Rd8 Bb4 Bg4 Nbd7+ Kc7 Bf5 Rac8 Nf6 Kb6 a8Q Rd7 Bc3 Rcc7 Qd8 Ka7 Ba5 Rc8 Be4 Bf7 Qf8 Be8 Qa4 Bg3 Nc2 Ba3 Na1 Bf2 Bb1 Be1+ Kd1 Bc3 Qc2 Bcb4 Ne6 Bc5 Kd2 Bb6 Nc5 Bd8
2BR1qR1/1NQbp3/1p1r1kp1/K2rn3/pQ1P4/2B1b3/Q1pnPn2/Q2R3N w - - 0 1 illegal: No possible last move
4QrbR/2Pqpp1R/k2pn1N1/pn1B2b1/3b3B/PQ1r3p/K2Q1N1R/7Q w - - 0 1 illegal: No proof kernel
1b1b4/Pk1p1NQ1/n4BbR/q2r1pR1/5Pp1/n2Q3K/2rBBpp1/2N1RR2 w - - 0 1 illegal: No possible last move, all moves rejected
R5B1/Q1qP1p1p/b3r3/KNpb1q1p/B1NN2r1/3N1PB1/1RQp3n/2n2k2 w - - 0 1 legal: proof: d4 e5 a4 exd4 h4 b5 axb5 g6 h5 Qh4 Rh3 Qe7 Rh1 Qd8 Kd2 gxh5 c3 d5 Ra6 d3 Rh3 Bc5 Ra1 Bd4 Rh1 Bf6 Ke3 d2 Kd3 d4 Kc4 d3 Kb3 Bd4 cxd4 Be6+ Kc3 Bc8 Kb4 Ke7 e4 Kf6 g4 Kg5 f3 Kf4 g5 Kg3 e5 Kf2 d5 c6 d6 a6 b6 c5+ Ka5 Qd7 b4 Nh6 b5 Rg8 e6 Bb7 e7 Rg7 e8N Qc8 g6 Bd5 d7 Qb7 Qc2 Qa7 b7 Ba2 b6 Ng4 Nc3 Nh2 Nd6 Bd5 Nge2 d1B Nd4+ Be2 Bf4 d2 Nc4 Bd3 Ncb5 Nc6+ Ka4 a5 b8Q Ne5 b7 Qb6 Qa7 Re8 b8N Qc7 Na6 Re6 Nb4 Be2 Ra2 Nd3 Rb2 Nc1 Bd6 Rg8 g7 Bd3 Be2 Kg2 Bd1 Kf2 Ka3 a4 Re1 Kg2 Re2+ Kf1 Bg3 Rb6 Re8 Re6 Ra8 Be2 Na5 Bec4 Nc3 Ba6 Nd3 Rb8 g8B Rb4 Ncb5 Rc4 Nf5 Rg4 Nc4 Ne2 Ka2 a3 Kb3 a2 Ka4 Nc1 Nfd4 a1Q+ Nba3 Qb8 Ka5 Qb1 Nab5 Qf4 Qc3 Qf5 Ba4 Qa2 Qc2 Qb3 Nbd6 Qb8 N6b5 Qc7+
1q4n1/1K1pNp1N/4R2n/k3q2Q/P3r2p/2pN1bP1/QRpr3N/3BB1bB w - - 0 1 illegal: No proof kernel
4QB2/Ppb2R1p/2Bn1npN/K4N2/3r2qp/1RrN4/QpNP1q1k/Q6b w - - 0 1 illegal: Other
N2B4/3n1nBB/1pBbNRp1/Q3pQPk/p5b1/2K1R1q1/2n1Pbpr/1R6 w - - 0 2 illegal: No proof kernel
r1NB4/Q1R5/4p1n1/1PQ1Q3/pRbppnk1/1q2p3/2rnP1B1/2KNBQ1r w - - 0 1 illegal: Other
B1RB4/2qp2QN/1NpQ2r1/2rP1nN1/b3R1Pn/n2Kpp1p/k3N3/4r1Q1 w - - 0 1 illegal: No proof kernel
2Nr4/1n1pB3/BBPQQn2/4r1Rp/3P4/pn1pN3/qRp1r1b1/Q1K1B1k1 w - - 0 1 illegal: No proof kernel
1K1R1Q2/1q1B1Rpr/2Q3P1/Q5b1/rRpqp3/Qb2P2p/2q2p1B/2N1knN1 w - - 0 2 legal: proof: f4 d5 c4 dxc4 a4 e5 h4 b5 axb5 e4 h5 Nd7 h6 Ne5 fxe5 Qd6 Rh3 Qxh6 Rh1 Qh2 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 Kc6 Kg3 b4 Kf2 d4 h5 g4 f5 b6 a5 e6 f4 e7 h4 e8Q a4 b5 c3 g5 f3 g6 a3 b7 h3 b8R c2 d5 a2 d6 Qg3 b6 Ra6 d7 Qf4 d8Q Qh4 Nd2 Bf5 Kb7 c5 Qc6 Be6 Nb3 Ra4 Bf4 c1Q e3 Ne7 Q1d3 Qf6 Rb1 a1Q Bh2 Qc2 Nc1 Ke1 Rb4 Rh7 Qa3 Qad4 Bb5 Nf5 Qdc7 Bd5 Rd8 Be7 Kb8 Bb3 b7 c4 Qa5 Ng3 Qcc7 Rh4 Bd7 Rh7 Qc6 Qfd6+ Ka8 Q6f6 b8Q Nf1 Qf4 Qe6 Kb8 Bg5 Qf8 Qef6 Bf4 Qe6 Rh2 Qef6 Rf2 Qe6 Bh2 Qef6 Rg2 f2 Rg4 Qe6 Rf4 Qef6 Rf5 Qe6 Rf7 Qed6+ Qcc7 Qa6 Qc6 Qb7+
4q1Nn/3bQ2r/3pN3/6RR/QBBKpqp1/p2nPNpP/1k1n1b2/2R3R1 w - - 0 1 legal: proof: f4 c5 g4 a5 d4 cxd4 a4 b5 axb5 e5 g5 e4 g6 hxg6 Nc3 g5 Nb1 g4 Nd2 Rh5 Nb1 Re5 fxe5 Ra6 Be3 Rh6 Bc1 Rh8 Kf2 Ke7 b4 Ke6 c4 f5 c5 Kd5 c6 Kc4 c7 g5 h3 a4 e6 d3 Ke3 g3 b6 a3 b5 g4 e7 d2 e8Q d6 b7 Qe7 b6 Nd7 b8R Qe5 b7 Qd5 Nc3 Rh7 Nb5 Nc5 Nf3 Qe6 Qe7 Bg7 Nbd4 Kc3 Rg1 Nd3 Qa4 d1Q Bd2+ Kb2 Rc1 Bd7 c8N Nh6 Bb4 Nf7 Ra8 Qg6 b8R Nh8 Ne6 Qe8 Ra5 Bc3 Rbb5 Be1 Re5 f4+ Kd4 Bf2+ e3 Qb3 Rh5 Qa2 Nf8 Qaf7 Ne6 Qff8 Rag5 Qf6+ Ne5 f3 Be2 Qf4 Bf1 Be1 Be2 f2 Nf3 Nc5 Bc4 f1N Qg7 Nd3 Ne7 Nd2 Ng8 Bf2 Qf8 Bb5 Qe7 Bd7
4r2K/1R1p3N/1QpknQ2/pR4qB/2P1rr2/p2b1pq1/NQ1BBP2/Q2b4 w - - 1 2 legal: proof: h4 b5 a4 bxa4 g3 e5 Nf3 f5 Rh3 g5 Rh1 f4 Ng1 f3 Ra2 Na6 Ra1 Bd6 Nc3 Nc5 Nb1 Ne4 d3 g4 d4 Ng5 hxg5 exd4 Be3 Nh6 Bc1 Bf4 gxf4 Ng8 Kd2 Ke7 Kd3 h5 Ke4 a5 Ke5 g3 c4 g2 e4 a3 b4 h4 f5 h3 g6 c6 g7 h2 b5 d3 f6+ Ke8 b6 d2 b7 Ne7 b8Q Nf5 f7+ Ke7 g8Q Qf8 Nc3 Nd4 Na2 Nb5 Rb1 Nc7 Rb5 Rh6 Qg7 Ra7 Be2 Bb7 Nh3 g1Q Ng5 Qg8 Nh7 Ba6 Qb6 Ra8 Qc2 d1B Bd2 Ne6 Qb2 Bc2 Qh8 Q1g6 Rb1 Qg3+ Kf5 Bd1 e5 h1R Qa1 R6h4 Qg7 Nf4 e6 Re8 Qgb2 Kd6 Kf6 Re1 e7 Ne6 f8Q Q8g5+ Kf7 Re4 Qfh8 Rf4+ Qhf6 Rd8 e8B Rb8 Rf5 Bb5 Rc5 Bba4 Re5 Bac2 Rb5 Bg6+ Kg8 Bd3+ Kh8 Rb7 Bh5 Ra7 Bf1 Ree4 Be2 Ra8+ Qbd8 Rg4 Rb7 Qf5 Qc2 Qfe5 R1b5 Rgf4 Qcb2 Qeg5 Qf7 Nf8 Qb6 Rae8 Qff6+ Ne6+
R5NK/nb5p/p3B3/1N4q1/PR4Pk/bQ1pqBrp/2Q3pR/2BBrq2 w - - 0 1 illegal: No proof kernel
B1r1R2B/1nqR2b1/nk1p2n1/4N3/2p1NP2/3Npq2/p1pP2rK/B2QN2Q w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 h4 gxh4 a4 Bg7 c4 bxc4 b5 Ba6 b6 Bb5 axb5 Bf8 f4 e5 Kf2 c5 g4 a5 Kg2 h5 f6 a4 b7 h3+ Kh2 c3 g5 d6 g6 Kd7 g7 Kc7 b6+ Kc6 f7 e4 Bb2 e3 Nf3 h4 Ne1 c4 Bg2+ Kb5 Rg1 c2 Nc3+ Ka5 Ne4 Ne7 g8Q a3 Qh7 Na6 b8N Rg8 b7 Bg7 f8B Ng6 Nc6+ Kb6 b8N Qc7 Nb4 a2 N8c6 Rc8 Nbd3 Nb8 Nce5 Na6 Kh1 h2 Rb1 Re8 Bf3 Rc8 Kg2 h1N Kh2 h3 Ba1+ Ka7 Rb8 Nf2 Ra8+ Kb6 Be7 Rgf8 Bf6 Rg8 Kg3 h2 Rg2 Bf8 Bh8 h1Q Qh6 Qf1 Qh1 Bg7 Rh2 Qe2 Rh7 Qf1 Kh2 Qe2 Nb4 Nd3+ Bg2 Ndc5 Nbd3 Nb7 Rb8 Bf6 Rd7 Bg7 Ra8 Rcf8 Re8 Qf3 Re6 Rc8 Re8 Rf8 Bh3 Rf6 Be6 Rf5 Bd5 Rg5 Bc6 Nbc5 Ba8 Nb7 Nf6 Rg3 Ne4 Rg2+
q1b2b1k/p1r1p1p1/BRQQ4/P4B1N/b3QbP1/2R2nNp/4r1Qp/2KN4 w - - 0 2 illegal: No proof kernel
5Q1R/k2n1Q1q/p1b1p3/1B1pPrp1/NQ3B2/1pK1b2B/3pRnP1/r1NQ4 w - - 0 1 illegal: No proof kernel
B4RN1/4ppQb/1rQ2B1p/2NK3P/1k1b2N1/1pb4N/B1pp1Pq1/1nR2r2 w - - 0 2 illegal: No proof kernel
1k6/1q5p/p1BNp2b/1r1RP1Qb/1B2p1n1/P1bp1pRK/BB1Q3R/4Nn2 w - - 1 2 illegal: No proof kernel
2b1nQ2/NR2n3/q1R1pR2/k1b5/4KB2/1bpBP2b/bRP1rn1N/r1BQ1q2 w - - 0 1 illegal: No proof kernel
1B1qRb2/1kqnp1N1/q5R1/Q1B3bN/rB4bq/r1p2R1B/K1P1P3/4q1nQ w - - 0 1 illegal: No possible last move, all moves rejected
K1N1QN1B/2q1p3/1r4B1/knbq3p/5b2/3QPBRr/6BP/1bRRqqnq w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 Ra5 gxf4 Ra3 Bb7 Ra1 Bc8 Kf2 f5 Kf3 d5 c4 Kd7 g4 Kc7 b4 Kb6 e3 a5 g5 d3 g6 d4 g7 a4 Nd2 a3 Ne4 d2 Ne2 d3 Nd4 a2 Nd6 Qc7 Ne6 Ra6 Bb2 Nc6 Rc1 a1B Bg2 Nf6 g8B Ng4 Bf7 Nf2 Bg6 Bh6 Nf8 Na7 Qe2 Nh3 Rhd1 Be6 Be5 Bd4 Nc8+ Kb7 c5 Rb6 Bf6 Ba2 Bg7 Bb1 c6+ Ka8 Qf1 Bc5 Bd4 Qd7 c7 Kb7 Be5 Bg5 Qe2 h6 Bd4 Rh7 Bh8 Ng1+ Kf2+ f3 Kg3 Re6 b6 Ka6 b5+ Ka5 b7 f2 b8R f1Q b6 Nb5 b7 f4+ Kg4 f3 Kf5 Rc6+ Ke4 f2 Ra8+ Ra6 b8Q Qe1 Ke5 f1Q Bf3 Qdh3 Kd5 Qhg3 Bg2 Bf4 Bf3 Bb6 Kc6 Bd4+ Kb7 Bc5 Na7 Rc6 Qe8 Rd6 Rd8 Rf6 Ka8 Rb6 Bd4 Rh8 c8B Rh7 Bh3 Rh8 Rc4 Rh7 Rdc1 d1Q Bhg2 d2 Nc8 Qb3 Rb4 d1Q Qd3 Qc4 Bh8 Qg5 Bb7 Qgd5 Rb2 Qcc2 Bf3 Qcc3 Rg2 Qce5 Rg3 Qc7 Bg4 Qh1 Bgf3 Qdd2 Qe2 Qa2 Rdd1 Qd5 Qd3 h5 Bfe4 Rf7 Bg2 Rf5 Bf3 Rg5 Bc6 Rg4 Bb7 Rh4 Bc6 Rh3 Bg2 Qc4 Bcf3 Qd5+
3RBQ2/N1p3Bk/2Nrrn2/3b1bK1/2bNbb1p/2Pq2nb/RQ3B1P/1b1N4 w - - 0 1 illegal: No proof kernel
3N3b/QqQ3p1/2K1Br1B/2Qp1NPQ/r3kn1q/qq1N1n2/R1RP4/r3nb2 w - - 0 1 illegal: Other
2N1B3/1b3Q1p/1pQr4/1PnbRNBn/1bn3Br/3r3P/5Nk1/R1K1qbBq w - - 0 1 illegal: No proof kernel
Rr1rqB2/2p5/p1Pr2Qn/1Q2bB2/3kN2K/q5BN/PRq1bb2/1R1q2nR w - - 0 1 illegal: No proof kernel
R1qq4/nqn1p3/1N1bB1N1/Q2b1npK/NRb5/1NB1P1r1/2k3P1/3n1RQr w - - 0 1 illegal: No proof kernel
b4qNr/1B1p4/p2qqR1B/NQ5n/1N1P1bK1/1Qn5/P1Nb2B1/Rrr1b1k1 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 c5 bxc5 h5 Ba3 hxg4 Bb2 Rh7 Bc1 Rh8 Kf2 Ke7 h4 Ke6 c4 Ke5 e4 Kd4 d3 b5 e5 g5 c6 f5 c5 g3+ Kf3 a6 c7 b4 e6 b3 h5 g4+ Kg2 b2 e7 Qe8 h6 Nc6 h7 Nb4 c6 Bb7 c8B Bh6 Rh4 f3+ Kh1 f4 c7 g2+ Kh2 f2 Be2 f1Q Qb3 f3 Kg3 f2 Nc3 b1R Bd2 Nf6 Bf3 Qd1 Nd5 f1Q Bg5 Qg8 e8N Qe6 Nd6 Qf2+ Kf4 g3 Nc4 Rb8 Rh1 Rc1 Na5 Ba8 Bb7 Qff1 c8N Qf2 Nh3 g1B Ne3 g2 Ne7 Qff1 Ng8 Nbd5+ Kg3 Nc3 Nf2 Nh5+ Kh4 Bh2 Nc2+ Kc5 Bf4 g1B Bg2 Qd2 Bg5 Bf4 Rh3 Qdd1 Rf3 Bd2 Bf4 Bh2 Bg5 Be1 Rf7 Bf4 Rf6 Qd6 Kh3 Qde2 Kh4 Qee5 Kg4 Qe8 Nb4 Kd4 Nd1 Bfd2 Ne3 Qf2 Nec4 Bf4 Na3 Ke3 d4 Qf1 Nac2+ Kf2 Na3 Kg1 Nac2 Bg7 Bh6 Bfd2 Rf5 Be5 Rf6 Bef4 Ne7 Rf8 h8Q Qf2 Qh7 Rh8 Qd3 Qf8 Qdc4 Qe3 Ng8 Qee6+ Kf3 Qde5 Be4 Bh4 Nd3 Bh2 Qbb4 Q6d5 Kg4 Bhf4 Qb1 Rb3 Ndb4 Qdd6 Qb5 Bhe1 Bb7 Qed5 Qb2 Qc4 Qa3 Rbb1 Qb3 Qce6+
5Qrk/1Rnr1p1r/5PQ1/n2N1qRp/B3bNrB/Rb1R3P/3rQ3/K5br w - - 0 1 illegal: No proof kernel
2nr3r/2K1np1B/kBbrQ1pb/1RQ1rP1R/2r2bB1/4N1Pr/1N2R1B1/7q w - - 0 1 illegal: No proof kernel
1Q2N1R1/1N1n2Br/pr1B2R1/3r2bk/Pn5B/1NQBp3/2bnP1r1/rq3Kn1 w - - 0 1 illegal: No possible last move
N1r2q1B/1b1n1n1Q/n1R5/R3bpBp/3N4/NnnB1PNP/2K4Q/1n2k1rq w - - 0 1 illegal: No proof kernel
1n3b2/2p2q2/B7/NpP2r1R/1P1QB1r1/bKbrnr1B/1Rn2BbQ/N2k3N w - - 0 1 illegal: No proof kernel
k1r2Nn1/nrrKQbpq/1b4P1/qQ3r2/pBN3n1/PNQ3R1/7Q/n3RB2 w - - 0 1 illegal: No possible last move, all moves rejected
1k1bRN2/p1N2q2/PBr1b3/3B1bQp/4Knrq/2NQR1pP/1N3B2/1n4qr w - - 0 1 illegal: No possible last move, all moves rejected
3n3r/8/b1Q2B1p/1pr2Q1Q/2rQ1RRq/1P2b2q/BNp2nKP/NB1nk1b1 w - - 0 1 illegal: No possible last move
4B1K1/bBpN1Qn1/2nn1B2/1NqR1p1r/2N1qB2/rp6/1PPb2Qr/Rb2k3 w - - 0 1 illegal: No proof kernel
1nBbNrq1/1rbBRQ2/1b6/QpbR1NB1/1P1B2bN/4p3/p3PK2/n2k2n1 w - - 0 1 illegal: No possible last move, all moves rejected
N1NNbN2/2R3p1/b3rBB1/1b1p1pPK/QQ2nr1b/q2Prk2/5n1B/R2b4 w - - 0 1 illegal: No proof kernel
3brR2/1rk3rp/2N1rnbP/1p1Q3B/1R1Rr1Q1/2N1K3/1P1Bn1p1/q1RQn3 w - - 0 1 illegal: No possible last move, all moves rejected
RBb5/N1pk1bpp/3B4/n1Pr1N2/RQ3KPR/3r1nq1/1n6/Q2BnRbn w - - 0 1 illegal: No proof kernel
k6n/bpRnrrb1/BP2n1K1/2rp1R2/b1N1b2q/3NQ2p/1R1P1B1Q/5BB1 w - - 0 1 illegal: No possible last move
BN2N3/2p2Q1N/K3b3/2bpnn2/N1PQ4/r2Pp2R/Q1RBrb1q/2r1nk1r w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 Ke2 Kf7 g4 Ke6 b4 Ke5 f4+ Kd4 g5 a5 b6 h5 b7 e5 b5 e3 f5 h3 g6 h4 g7 d6 f6 e4 f7 a4 b6 a3 Bg2 h2 Nc3 h3 Na4 Ne7 g8Q Nd7 b8N a2 b7 Ne5 Nd7 Nf5 b8N Qh4 Nf6 Be6 Ne8 Ra5 Rb1 a1B Rb2 Kc4 Ra2 Bd4 Nf3 Be7 f8Q Rh7 Nc3 Ra3 Na4 Qh6 c3 Bh4 Qgf7 Bc5 Rc2 Bf2 Ng5 Qh4 Q7g8 Re7 Qff7 Qf4 Nh7 Qh6 Rg1 h1R Bf3 h2 Rg3 Rg1 Rh3 h1R Qg2 Kd5 c4+ Kd4 d3 Qf4 Bd2 Qh2 Qg4 Rf1 Qb1 Rc1 Qa2 Rcg1 Be1 Rf1 Kd1 e2+ Kc1 Ke3 Kb2 Rfg1 Bb4 e1N Bg2+ N1f3 Bd2+ Ke2 Qgg7 Rc1 Qg4 e3 Qd4 Ne1 Ba8 d5 Qb1 Ra1 Kc3 Kf1 Qa2 Rd7 Kb3 Rd6 Kc3 Ra6 Kb3 Ba7 Kb4 Bc5+ Kb5 Ra7 Ba5 Rb7+ Ka6 Rb2 Rc3 Re2 Rc2 Ba7 Bd2 Bc5 Qb3 Ra3 Qbb2 Bg1 Qa2 Bf2
b2q1bNR/Br1R1pNn/1p1NpP2/1BQqK1QN/3n2b1/1Q1b1b1r/4P3/6k1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h3 axb4 h4 gxh4 g4 Kd7 d4 Kd6 Kd2 h5 Kd3 c5 Ke4 b3 a4 b2 f4 h3 g5 h2 g6 h4 a5 h3 a6 c4 a7 c3 g7 c2 f5 Qc7 Nd2 b1B Nc4+ Kd7 d6 Kc6 d5+ Kc5 d7 Qb6 d8N Rh4+ Ke5 Qa5 d6 Nf6 g8N Nh7 d7 b6 Nd6 Qb5 Bf4 c1Q Qb3 Bd3 Bg2 Qd1 Bc6 Qc4 Bb5 Rh5 Bg3 Qd5+ Kf4 Kd4 f6 Qe1 Rd1 Nc6 Rd2 Rb8 a8Q Rb7 Qa5 Kc5 Rd1 Nd4 Rd2 Qd1 Qac3+ Qc4 Ne6+ Kd5 d8Q Rh6 Ng7 Bg4 Qcc2 e6 Qcc3 Kc5 Qa5 Qd5 Qe7 Rh5 Nf3 Rh4 Ne5 Rh5 Ng6 Rh4 Rg1 h1B Bh2 Bg2 Rh1 B2f3 Bg3 h2 Qc7+ Qc6 Ke5 Rh3 Qe7 Qe8 Nf4 Qb8 Nfh5 Qd8 Rf1 h1B Rf2 Qc1 Rh2 Qc4 Rd1 Rb8 Qd2 Ba8 Qg5 Bhf3 Ra1 Rb7 Ra7 Rb8 Rd7 Rb7 Rh1 Qd5+ Kf4 Rh4 Ndf5+ Qd6+ Ke3 Nc6 Be5 Rh2 Kf4 Rh4 Nhg3 Rh2 Qh6 Ng5 Qg6 Rg2 Rh4 Rh2 Rh8 Rh3 N3h5 Nh7 Qg5 Nd4 Qc2+ Kb4 Qd1 Qc5 Bb8 Kc3 Qb3+ Kd2 Ba7 Qd5 Qc5 Ke1 Nd6 Kf2 Qc6 Kg1 Qc5 Qc4 Ke5 Qd5+
4K1q1/1p1p1RN1/3PQb2/q1N1NqB1/Qr2n1p1/5BP1/b1B2N1k/1rr1r1Rn w - - 0 1 illegal: No proof kernel forced: wxLB
Q1n2rb1/3B1Npk/2qpnbqB/b2P2P1/2RK4/r2N4/1Nprb3/1QR1B2N w - - 0 1 illegal: No possible last move
1n1Qrq1N/2NRr3/bRNrR3/2p1K3/1qP2pB1/1Q1R2bq/1npB1P2/4q1k1 w - - 0 1 illegal: No proof kernel
1N2QRK1/p1nB1R2/P2nqq2/2Q5/QnqNb1pR/p1r5/Q2B2P1/1qb1rk2 w - - 0 1 illegal: No proof kernel
R1n1R1Q1/1n3b2/bpQn2Q1/pqr1N3/1n1r3k/P2pB3/3PB1BB/1Nb1K1q1 w - - 0 1 illegal: No possible last move, all moves rejected
2Q2n2/Q2rpq2/2bRqqB1/1pBR1r2/p5qn/PPRB4/KNB5/2bnkN2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 f4 d5 g4 a5 a3 b5 g5 h5 f6 d3 f5 a4+ Ka2 d4 b3 h3 f7 d2 f6 Ke3 c5 Kf2 c6 d3 g6 h2 c7 h4 g7 h3 Ne2 Qd5 Nec3 Bd7 c8B Bc6 Bf5 Qe6 Bg6 Nh6 g8B Nd7 B8h7 Ra7 Be2 Bg7 f8R Nf5 f7 Bh6 Rc8 Nh4 f8Q+ Qf6 Rg1 h1Q Rg5 h2 Rd5 Qhf3 Qh1 d1N Nd2 Qh5 Nf1 d2 Bed3 Ke1 Qg1 h1Q Rb1 Rb7 Qa7 Qe4 Rc7 Qef5 Qc8 Nf8 Rcd7 Q5e6 R7d6 Qhf5 Rb2 Qff7 Rc2 Q5f6 Bb2 Rd7 Bc1 Ne3 Nd1 Rg8 Nb2 d1Q Rc4 Qdg4 Rc3 Nd1 Be3 Rg7 Bc5 Bc1 Bc2 Rg8 Bgd3 Rg5 Bhg6 Rf5
q3N1RB/2b1pN1p/1nK1kB2/r1b3q1/1b1r3P/R2BpnR1/1Q2P3/2Q2bBr w - - 0 1 illegal: No proof kernel
3kbq2/4NBrb/N1pb1R1r/1pP2p2/1nB1n2b/2q3R1/rP1BKNQ1/2Q3N1 w - - 0 1 illegal: No proof kernel
2b1qK2/1p2NQ1R/p1r4R/Pk2q2N/1P1nQ2R/3p1b2/rB2B2R/2Nn1rbb w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 Ke2 h5 Kf3 d5 Kf4 Kd7 Ke5 Kc6 b4 a6 a4 d3 f4 d2 c4 e6 g4 h3 c5 h2 g5 d4 g6 h4 f6 d3 g7 h3 a5 Ne7 g8N Bh6 f5 Kb5 c6 Bd7 Kd6 e5 f7 e4 f8Q e3 f6 e2 c7 e1R c8R Nbc6 f7 Qb6 Be2 Qe3 Ra2 Nd5 Nf6 Rf1 Nh5 Nc3 Qe1 d1B Rc7 Bc8 Bb2 Nd4 Qe7 Qe4 f8R Be3 Rf6 Rh6 Qe6 Qe5+ Ke7 Rg6 Ke8 Rg2 Kf8 Rgf2 Qf7 Rg2 Nf3 Bg1 Nfd2 Rb8 Nb3 Ra8 Bg4 Bf3 Qe4 Nd1 Nc1 Rd2 Rh6 Rb8 Ba3 Re2 Rac2 Ra8 R2c4 Ra2 Bb2 Bg2 Rc2 Bf5+ Qe8+ Bd7+ Rf2 Rc8 Be2 Bf3 Rhc6 Be6 Rh7 Bf5 Rch6+ Rc6 Rg2 Bc8 Qf7 Bf2 Rhg1 h1Q Rg4 h2 R1g2 Qg1 Rh4 h1B Rgh2 Be3 Qef4 Qg4 Qe4 Qge6 Nc3+ Kc4 Qff4 Qd7 Nd5 Kb5 Qf7 Bg1 Ne7 Qe8+
q1R2qb1/1r2N2N/1QB1NQ2/1N1pp1q1/pB1b1R2/2bP3r/P1Kbk1n1/Qn6 w - - 0 1 legal: proof: e4 f5 g4 fxe4 b4 c5 bxc5 h5 Qe2 hxg4 Qf3 Rh7 Qd1 Rh8 c4 Kf7 h4 Kf6 f4 Kf5 d3 g5 Kd2 e5 h5 b5 c6 a5 c7 d5 c5 g3 h6 a4 c6 g2 h7 g4 Bb2 g3 Be2 e3+ Kc2 b4 Bf3 b3+ Kc1 e2 Kd2 e1B+ Kc1 Nf6 Nh3 g1B Bh5 g2 Bc3 b2+ Kc2 Ng4 Bb4 Nd7 Na3 Bd2 Nb5 Bd4 Rc1 g1Q Be8 Nc5 Ng5 Rb8 Ne6 Nb3 Rh4 Rb7 Qe1 Bd7 c8Q Qe7 c7 b1Q+ Kd1 Qf2 Qb8 Qg5 c8N Bh6 Qd6 B2c3 Qb6 Nd2 Qh1 Qb3+ Rc2 Nb1 Ne7+ Kf6 f5 Ne3+ Kc1 Ng2+ Rf4 Qc4 Kd1 Qc6 Rc1 Qf3+ Kc2 Qc8 Qd1 Qa8 Qf1 Bc8 Bc6 Bd7 Qe1 Be8 Qf1 Bf7 Qe1 Bg8 Qh1 Kf7 f6 Qf1 Nf5 Kg6 f7 Qf3 Qe1 Kh5 f8N Qf1 Ne7 Qf3 Rf5 Kg4 Rf4+ Kh3 Qf1 Kg3 Qd1 Kf2 Qh1 Bf7 Qg1+ Ke2 Qh1 Rg8 h8Q Qf1 Qg7 Rh8 Nh7 Bg8 Qf6 Qh4 Rg4 Bhd2 Rf4 Qg5 Qf7 Qg3 Nf6 Qf8 Be8 Rh3 Rh4 Ba1 Nh7 Nc3 Qg6 Q8f3 Qg7 Nd1 Kb1 Qg5 Rc3 Qfh5 Kc2 Qf8 Qf6 Bb2 Rc5 Nc3 Qa1 Nb1 Rf4 Bbc3 Bd7 Qhe8 Rc7 Qg3 Bc6 Qa8 Rc8 Qg5
1R1QNrbr/4n2Q/N1Bpp3/3qP2n/p3rq2/k6N/1NRP2KB/b1b2Br1 w - - 0 1 illegal: No proof kernel
bn1q4/RNn3BN/R2b2Qq/1p1p1p2/7k/bQRB1P1r/1P4rb/r3K1QR w - - 0 1 illegal: No proof kernel
rN1nrq1n/2r1p3/b1BQ1B1p/p5bk/4P2q/2B3rP/1n1NR1K1/QQR2Q2 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 e4 Kf7 f4 Kg6 Kf2 d5 c4 a5 b4 g3+ Kg2 h6 h3 d3 c5 d4 b6 d2 b5 d3 f5+ Kg5 c6 Nf6 c7 Nfd7 b7 Ne5 b6 Nf7 f6 Nc6 b8Q Ba6 Nf3+ Kh5 c8Q g5 b7 g4 Qd7 Bg7 Ra2 Re8 Ne5 Nh8 f7 Bf6 f8Q Bg5 Bb2 Qc8 Qdc7 Nd8 Nc6 Qf5 Qc1 d1R Qd6 d2 Bb5 Qf7 Qg7 Qf8 Bf6 Re1 Bc3 d1N Re2 Nb2 Nd2 Rf1 Qa1 Rc1 Qgf6 Rc2 Rhe1 Rc1 Qf1 Rc2 Kh1 g2+ Kh2 g1R Rc1 Rg3 Ba4 Re3 Kg2 g3 Nb4 Bd3 Na6 Rf3 Bf6 Rc7 Bc6 Re3 Qc8 Bc4 Nb8 Ba6 Qce6 Rc3 Qea2 Rf3 Q2b1 Rb3 Nd7 Rf3 b8B Rb3 Kg1 g2 Ba7 Ra3 Bad4 Rd3 Kf2 Rg3 Nb8 g1Q+ Ke1 Rb3 Bc3 Qg4 Kf2 Qh4+ Kg2 Ra3 Bb4 Rd3 Bbc3 Rg3+
Q2QR3/3q1pNb/1Qrp2pB/1nr1B3/1Q2rnB1/5RP1/K1knqP1n/b5N1 w - - 0 1 illegal: No proof kernel
2q2n2/Bp1pNBrQ/B1qnB3/4b1rK/RP6/1r2N1Q1/NprPb1R1/4n2k w - - 0 1 illegal: No proof kernel forced: wxLB
1nQ2Q2/R3p1p1/1rq1N1kN/1qn4R/2p1R1Bb/r3bR2/4P1PB/2KbnnN1 w - - 0 1 illegal: No proof kernel forced: bxLB wxDB
5b1B/p1BKR3/2Bn2qp/RQ1pn2P/3bb1k1/3Pnrn1/RbR2r2/1NQ2N2 w - - 0 1 illegal: No proof kernel
2B2r2/2nb2Bn/1pQRp2K/n1r1Pk2/1QQpN1Nb/1PQNb2R/3n2b1/5q2 w - - 0 1 illegal: No proof kernel
Kn1B2R1/Q2B2Rb/2p3b1/rNr4k/3Qpb1p/B2NQ3/1qP1PrBn/r2b4 w - - 0 1 illegal: No proof kernel
N1b4n/1QRNB1rb/1p5p/R2B1rNk/1B6/1P2pNQP/bn3K2/bq2nn2 w - - 0 1 illegal: No possible last move, all moves rejected
4QrrB/pR1Bq2p/R1nk4/n1p4Q/P1bp4/3b2n1/3PNNR1/N1NK1rb1 w - - 0 1 illegal: No possible last move
kn3R2/4r3/2b1B3/1Rb2N1p/N3p1Kp/2NRP1BP/1pn1Q1Qq/qNq1b2r w - - 0 1 illegal: No possible last move, all moves rejected
R1B2n2/b1p1qnB1/Q1P2N2/2p1p2b/2b1P1N1/Brqp3R/NrQ3K1/N1q1k3 w - - 0 1 illegal: No proof kernel
2q1R1B1/rk4bN/2qr1p2/pN1Q1P2/2pn2Rn/1qP1N1Q1/3pN1bK/2Bn2B1 w - - 0 1 legal: proof: d4 e5 h4 exd4 a4 b5 axb5 g5 Be3 gxh4 Bg5 Bg7 Bc1 Bf8 f4 d5 Kf2 Kd7 g4 h5 Kg2 a5 b4 c5 e4 Kc7 e5 d3 f5 h3+ Kh2 d4 c3 h4 b6+ Kb7 e6 d2 b5 d3 g5 Nd7 g6 Nh6 e7 Ra7 e8N Rh7 g7 Ng8 Na3 Nb8 Ne2 Nc6 Nc7 Nge7 g8N Rh6 Nf6 Bg7 Ncd5 Ng6 Nh7 Nd4 Rg1 c4 Bg2 Bd7 Ne3+ Bc6 Bd5 Qc8 Be6 Bd5 Rg4 Bg2 Qh1 d1N Ra2 Kb8 b7 d2 Ra1 Kc7 b8B+ Kb7 b6 f6 Ng5 Rh8 Nb5 Rd8 Nh7 Rd6 Bg8 Bd5 Qe4 Bc6 Kh1 h2 Kg2 h3+ Kg3 h1Q Qd5 Ka6 b7 h2 Bc7 Nh4 b8Q Qe4 Bb6 h1Q Qc7 Qhf3+ Kh2 Qc2 Rb1 Qb3 Ra1 Rd8 Qg3 Rd6 Qe4 Qa4 Nd5 Bf8 Ba3 Nb3 Ned4 Nb2 Re1 Nd1 Bc1 Bg7 Qd3 Kb7 Re8 Qa3 Ne2 Qa2 Bf2 Qa4 Qe4 Nd4 Bg1 Qb3 Qee5 Qe4 Ne3 Qd5 Qe4 Qc5 Qee5 Bg2 Qd5+ Q5c6
r1n3RR/pn3Nb1/1Q6/2b1pB1N/pnp1P2q/PQB2b2/Q1r1k1BK/q1B5 w - - 0 1 illegal: No proof kernel
1q2r3/R1N2K2/1B1R2Q1/qB1p1Np1/qp2N3/2nPb1Pk/2rn3p/rbRQ2R1 w - - 0 1 illegal: No proof kernel
7R/NQ1r2R1/pn1NpRpb/2qqQBP1/2q3pb/PkB1QbnR/6r1/3K4 w - - 0 1 illegal: No possible last move
2Nb1R1B/2Bq1R1q/7p/Kb1p2Q1/np1P4/k2q1NQN/rpr1nB1P/4nB2 w - - 0 1 illegal: No proof kernel
qN5k/1nr1R1r1/BpQK2bB/r4pb1/Q2np3/2NQP2b/pPqQ2R1/1B6 w - - 0 1 illegal: No proof kernel
Kn2q3/p1B1pb2/1Q1bNrR1/3Qpp1B/n2R1P1r/4n1Nk/P1Qq1B2/Q5q1 w - - 0 1 legal: proof: e4 g5 b4 c5 bxc5 d6 h4 gxh4 e5 dxe5 Ke2 Kd7 Kd3 Ke6+ Ke4 h5 g4 b5 d4 f6 f4 b4 c4 b3 c6 h3 c7 b2 g5 h4 c5 h2 d5+ Kf7 c6 Kg6 d6 h3 Kd5 Kf5 g6 Bb7 c8Q+ Nd7 g7 Nh6 g8Q Rb8 Be3 Ng4 Bf2 Rh4 Ne2 Bh6 Rg1 Bg5 Na3 b1N Nc2 Qe8 Qd8 h1Q+ Bg2 h2 Qb6 Rc8 Bf3 Nb8 d7 Qg2 d8B h1Q Bc7 Nc3+ Kc5 Ba8 Qgd5 Ne3 Bh5 Na4+ Kb5 Qhh2 Rb1 Rd8 Rb4 Rd6 Rd4 Qf1 Rg3 Qfg1 Qa1 Bb7 Ka5 Bc8 Kb5 Be6 Rg2 Bf7 Rg4 Nd7 Ka6 Nb8+ Kb7 Qhg2 Ka8 Re6 Qd7 Qd5 Rg3 Qa5 Rg2 Qd2 Qd5 Qf1 Bg3 Rh3 Bd8 Bh4 c7 Qd3 c8Q Qg1 Rb4 Rh2 Be1 Bg3 Qcc4 Rh4 Bc7 Rc6 Bg6+ Kg4 Bh5+ Kh3 Ncd4 f5 Qc2 Rg6 Ne6 Rf6 Rd4 Qc3 Bd2 Be1 Rg6 Qd3 Ng3 Qe2 Bb4 Bd2 Ba5 Bc1 Bb4 Ba3 Be1 Qd2 Bf2 Bd6
3b4/n1QQpBn1/2pN1qq1/1pk3Bn/1qP2Nb1/2r3R1/1B2P2p/Q1RKQ1r1 w - - 0 1 illegal: No proof kernel
b1R2QrB/nB1Kb1Rp/4pNB1/p2pP3/r2PN1Q1/2R1nr2/2b4k/1qR2b2 w - - 0 1 illegal: No proof kernel
4r2q/rNRQpb1k/R3P3/1N1p1r1n/3pBN1p/6Bn/1Qn4P/KQ1Qn1b1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 Kd2 Kf7 f4 Kg6 b4 a5 e4 h5 c4 d5 Kc2 a4 Kb2 g3 f5+ Kh7 e5 g5 e6 g4 b6 g2 b5 h4 c5 g3 b7 Ra7 f6 Ra8 b6 Qd6 f7 Nf6 c6 Nh5 c7 Bh6 f8Q Qe5 Ne2 g1N Nf4 g2 Nc3 Nh3 Qd8 g1R Qd7 Nc6 b8Q Rg5 b7 Nb4 Nb5 Nc2 Bg2 Re8 Be4+ Rf5 Be3 Ra6 Bf2 Qh8 Bg3 Ne1 Ra2 a3+ Ka1 Bg5 Rc2 a2 Rc6 Ra8 Ra6 Ra7 Rf1 Qf8 Rf3 Qh8 Rc3 Rg8 Qc6 Bd7 c8N Re8 Ncd6 Bh6 Qcc8 Bg5 Rc7 Bc6 Qd7 Bh6 Ng2 Be3 Nf4 Bf2 Qa8 Bg1 b8Q Nf3 Qab7 Ne1 Na3 Ba4 Qbb1 Bc2 Nb7 Ba4 Kb2 a1N Ka2 Bb5 Kb2 Be2 Nb5 Nac2 Ka2 Ng7 Qb2 Bh5 Qbb1 Bf7 Kb2 Nb4 Ka1 Nh5 N5d6 Rg8 Nd8 Nc6 Q8b2 Nb4 Nb5 Re8 Nb7 Nbc2+
1q1n4/KprpQN2/4b1rp/2NP1BRP/1nk5/1N1rpr1N/2nQRb2/4B2R w - - 0 1 illegal: No proof kernel forced: wxLB
B4K2/2pQbp2/2P4N/5PRr/1BBN1n1q/Q2rb1bb/3pRp2/1n1NNnk1 w - - 0 1 illegal: No proof kernel
6Nk/1QBQ1pp1/Bb4R1/KRB3b1/b1N1nN2/1qr2p1b/3r1PPp/1nr1N3 w - - 0 1 illegal: No proof kernel
2q1B2n/b1R2NpQ/2QRR2p/b2p2pk/nr2NK1n/bb1P4/4rB1P/2QR4 w - - 0 1 illegal: No possible last move, all moves rejected
b1B5/pnrnQ1p1/4pN1k/p2nR1q1/2rrRBPr/2NRb2Q/3RP3/2Q3K1 w - - 0 1 illegal: No possible last move
KR4N1/1bk2b1p/1p1N4/b1qpQ2P/B1rNnpq1/1N6/1b2RP1r/R2nB1Q1 w - - 0 1 illegal: No proof kernel
1Nn1Q2B/b4RpN/6q1/4pNPB/2n5/4PKnk/1pbQBp1q/1r2nRrN w - - 0 1 illegal: No proof kernel
N3r1R1/pKN1pBN1/3pq1q1/1N1bP3/1bn3pb/2r2Q2/b1QP3B/k1nB2R1 w - - 0 1 illegal: No possible last move, all moves rejected
3N1b2/kp2n1p1/B5NR/1bN1Qpr1/1p2p1rn/1P1QB1Qq/1Q1RPK2/3r3n w - - 0 1 illegal: No possible last move, all moves rejected
NK6/pb2Q1q1/3pp1nr/P1pB2R1/1nN1Q2B/RpkbP3/2n2N1B/rBb5 w - - 0 1 illegal: No proof kernel
Q2Bn2r/2nN1QQ1/3p2pR/2pN2NK/bbr5/1RnP1BP1/p4Np1/3q1bk1 w - - 0 1 illegal: No possible last move, all moves rejected
2NBRbBq/2B1N1br/1n3Kb1/2pQ1nR1/1p1r4/1PP1p2Q/p1N1kp2/6qB w - - 0 1 illegal: No possible last move, all moves rejected
1r1k4/n5b1/2Qppq2/nQpbR2K/1pRn3Q/prBPq3/B1P3B1/1N4BN w - - 0 1 illegal: No proof kernel
1Q5r/1p2p1BR/n2bP3/p2q1Q2/1B2NB1q/6pp/BP1N2bb/RNK1kn1r w - - 0 1 illegal: No proof kernel
3R4/b1R5/1p2p3/p3N1np/N2nN3/rp1KBq1B/P2nPB2/rbqQ1QBk w - - 0 1 illegal: No proof kernel
q1BN2r1/n1k1pbpp/BR1pnb2/2r5/QR1p1B1N/2pP4/B2QqKP1/7N w - - 0 1 illegal: No proof kernel forced: wxDB
1R6/4KR2/P2rqR2/1NR1bb2/4kN2/p1Pnp1B1/b1Q2r1R/Bq1b1R2 w - - 0 1 legal: proof: b4 c5 a4 f5 e4 b5 axb5 h5 exf5 h4 d4 cxd4 g3 Nf6 gxh4 Ng8 h5 Qa5 Na3 Qb6 Nb1 Qd8 f4 a5 f6 g6 f5 a4 Bd3 Nc6 Be4 Na5 bxa5 Qb6 f7+ Kd8 f6 Kc7 Nc3 Kd6 Bf5 gxf5 Nb1 Qd8 Kd2 Kd5 Kd3 e5 h4 f4 a6 d6 h6 f3 h5 a3 h7 f2 h6 f1B+ Ne2 Bg2 b6 Qe8 b7 Bg7 f8R Qe6 b8R Ne7 f7 Ng6 Rh2 Bd7 Rfc8 Rd8 f8R Bh8 Rf7 e4+ Kd2 d3 Ke3 d2 Nf4+ Ke5 Rc5+ d5 Nc3 Bh3 Rab1 Bf5 Nb5 Ra7 Qe2 d1B c3 Bc6 Qc2 Rd6 Bb2 Rb7 Rf6 Rf7 Ba1 Bg7 h8R Be8 Nh3 Nf4 h7 Nd3 Nf4 Rf8 Rg8 Bh8 Rg5 Bf7 Rc7 Bg7 h8B Bg8 Rcf7 d4+ Kd2 Nc1 Rgh5 d3 Ke3 d2 Rg5 Nd3 Rgh5 Be2 Rf1 d1Q Rg5 Qb1 Rgh5 Bh6 Bg7 Bg5 Bh6 Bh4 Bg5 Be1 Bh4 Bd1 Bg3 Bf2+ Kd2 Bb6 Rg5 Bc7 Ke3 Nb4 Ng2+ Kd5 Kf4 e3 Rgh5 Nd3+ Kg5 Ke4 Nf4 Bh3 Kg6 Bhg4 Rc5 Bf5+ Kg5 Rc6 Kh6 Be5 Kg7 Rd6 Qd2 Rfd8 Qc2 R8d7 Kf8 Rb7 Nc7 Rb2 Nb5 Ra2 Qb3 Rf2 Qc2 Qd5 Ke7 Qc6 Rfh7 Ba2 Rg7 Qc8 Rgf7 Qe6+
q2RqB2/3NQ3/6pP/Nr1bRPr1/BB1Bb2B/1q1q1k1K/5rp1/7B w - - 0 1 legal: proof: b4 c5 a4 h5 g4 hxg4 d4 cxd4 b5 e6 a5 b6 axb6 Bd6 c3 Bb4 cxb4 f5 e4 f4 Bg2 Nc6 Bh3 Nce7 Bf1 Nf5 f3 e5 exf5 e4 Qb3 e3 Qd3 Nf6 Qd1 Ne4 fxe4 Rh4 Nh3 Rh5 Ng1 Rh8 h4 Kf7 e5 d5 h5 a5 b7 g3 b8B f3 e6+ Kf6 b6 Kg5 b7 Kg4 e7 g6 e8B d3 b5 a4 b6 e2 h6 a3 Bb2 d4 Bd6 a2 b8B Ra4 b7 Ra3 Bg2 Rc3 Nd2 Be6 Nb3 Bd5 Bf8 Rc1 Rb1 a1Q Bbd6 Qaa8 b8B Rc3 Na5 f2+ Kd2 f1R Nf3 Qd7 Bb4 Rf2 Ke1 Qa4 Rh2 Qb3 Bh1 g2 Ba4 Rh7 Bg3 Rb7 Bh4 Rb5 Ne5+ Kf4 Nd7 Kf3 Qc1 Be4 Qg5 Rc4 Rd1 Bd5 B2c3 Be4 Kd2 e1Q+ Kc1 Bd5 Qe7 Qe5 Re1 Qeb8 Re2 Qe8 Kd2 Be4 Ke1 Bd5 Rc2 d2+ Kd1 Bb7 Qe2+ Kf4 Ne5 Rf3 Rh3 Rg3 Ba1 Rg5 Re3 Bc6 Qe1 Rc3 Ke2 d1B+ Kf2 d3 Rce2 d2 Rd3 Rc2 Rd8 Bd5 Bd4 Ra2 Re3 B1f3 Nd7 d1Q+ Kg1 Rd2 Kh2 Rf2 Kh3 Qdc2 Re7 Qcd3 Qe6 Qa2 Qf6 Qab3 Re5 Bfe4+ Bg3+ Kf3 Bh4 Rc5 Qe7 Rb5
2b3Bq/K1n3N1/1rb1b3/1Q5q/3PrRbB/N1NbP2R/N4NN1/2b1nk2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Ke7 d4 Kd6 g4 c5 g6 h5 g7 f5 g5 b3 b6 b2 g6 h4 b7 c4 e3 h3 Qh5 f3 Ra5 c3 Be2 f4 Na3 b1B Bd2 h2 Be1 c2 Nh3 c1Q Bc4 Nc6 b8N Bbf5 Na6 Rh6 Nb4 Nf6 g8N Ne8 g7 Qd1 Na2 Ne5 Ne7 Bg4 g8N Nc7 Ng6 Nd3+ Kf1 f2 N8e7 Rb8 Nh4 Rb6 Ng2 Re6 Qe8 Re4 Qb5 Bge6 Ra7 Qg4 Ra8 Qg6 Ke2 f1B+ Kd2 f3 Kc3 Qh7 Bh4 Ne1 Kb4 f2 Ka5 Bd3 Ra7 f1B Nf2 Bfe2 Bb3 Rb8 Rb7 Bf3 Kb6 Bfg4 Ka7 Qh5 Rf1 h1B Bc4 Na8 Rc7 Rb6 Rc6+ Kd7 d6 Nc7 Nd5 Be7 Ndc3 Qdh8 Nfd1 Bf8 Rf4 Be7 Nf2 Bf8 Qf5 Be7 Rc5 Bf8 Re5 Kc6 d7 Bc5 d8N+ Kd6 Nab1 Ba3 Qg5 Bc1 Na3 Bed7 Bg8 Bde6 Nf7+ Kc6 Nh6 Kd6 Nf5+ Kc6 Ng7 Kd6 Nab1 Kc6 Nd5 Kb5 Ndc3+ Kc4 Ref5 Kb3 Rd5 Kc2 Na3+ Kd2 Rd7 Bb2 Qb5 Bc1 Na4 Ke2 N4c3+ Kf1 Rdf7 Kg1 Rf3 Kf1 Rh3 Q5h6 Nf4 Bhf3 Ng2 Qh5 Rf6 Re5 Rf5 Bc6 Rf4 Re4
2n2B1n/k1P1N2N/b5rP/4q1qr/n1N1Nq2/q3NQ2/Kn1RN2b/1B3R2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 e5 c4 d5 Kc2 Kd7 Kb3 Kc7 f4 Kb7 h4 g5 b6 d3 f6 d4 c5 e4 f7 e3 f5 d2 h6 g4 f6 d3 h7 g3 h5 g2 Rh2 e2 Nc3 e1Q Ne4 Qd4 Qf3 d1N Ba3 d2 Bd3 Nc6 Ne2 g1Q Ka2 Qg5 Bb1 Bd6 f8N Ne5 f7 Ra6 Nd7 Ng6 f8N N8e7 Ne5 Nb2 Ng4 d1Q Ne3 Q1d3 c6+ Kb8 b7 Ka7 Rg2 Bh2 b8N Qd6 c7 Qdf4 Nbd7 Rb6 Nf2 Ba6 Ne5 Nc8 Ne4 Qec3 N5c4 Qce5 Bc2 Rd6 Rf1 Rf6 Bb1 b3+ Ka1 Rf5 h6 Rg8 Bb4 Nh8 Rgf2 Rg6 Be7 Nf7 h8N Qdd6 Nh7 Qa3+ Ba2 Rgf6 Ng6 Nh8 Bb4 Rc6 Ne7 Rg6 Na5 Qg2 Nac4 Rh5 Rd1 Qg1 Rff1 Qgg5 Rd2 Nd3+ Kb1 b2 Kc2 b1N Bd6 Nc3 Bb1 Qaa5 Kb3 Na4 Ka2 Qb4 Ng8 Qba5 Bf8 Ndb2 Ne7 Qb4 Qg2 Qbc5 Qf3 Qa3+
3B3k/NPb1R2n/q1P1qnB1/prr4b/B1B1B1N1/3Rb2n/K1b5/Q4B2 w - - 0 1 legal: proof: c4 c5 a4 e5 f4 g5 fxe5 b5 axb5 Bg7 Qc2 Bf8 Qc3 g4 d4 cxd4 h3 dxc3 hxg4 Na6 g5 Nb8 Kd1 a5 Kc2 f5 Kb3 Kf7 e4 Kg7 g4 h5 b6 d5 c5 h4 b7 c2 e6 f4 g6 h3 e5 f3 e7 h2 e8B f2 g5 d4 e6 d3 e7 d2 Nh3 d1N Ka2 Rh7 b4 Bg4 b5 Qd3 b6 Nb2 Na3 Rh6 Nb5 Nc6 b8Q Bh5 b7 Qd6 Na7 Ne5 Ba4 Kh8 e8B Nd7 c6 Ndf6 Rg1 h1B Rg3 Nh7 Rd3 Be4 Bd2 Qd7 Qe5+ Ngf6 Re1 Nd1 Qa1 c1B Bf4 Qe7 Bc7 Be3 Bd8 Qe5 Bf7 Bd6 Bd5 Bf5 Be4 Bc7 g7+ Kg8 Be2 f1Q Nf2 Rg6 Ng4 Nf2 Rc1 Nh3 Re1 Qf3 Bf1 Qe2+ Rd2 Qa6 Rd3 Kf7 g8B+ Kg7 Bgb3 Kh8 Bc4 Qe6 Re2 Rg7 g6 Rd7 Re1 Rd5 Re2 Rb5 g7+ Kg8 Be7 Re8 Bd8 Re7 Re1 Rd7 Re2 Rdd5 Re1 Kf7 g8B+ Kg7 Bf7 Rdc5 Bg6 Kh8 Rd7 Bd6 Re7 Bc7 Rd1 Qc8 Rd3 Qe6 Nh6 Bd1 Ng4 Bc2 Be8 Bg6 Bf7 Bh5 Be8 Bg5 B8g6 Be3
B1N4q/7r/r1B1B1BP/1r1Q1BK1/kp1R2R1/2P4r/2nb4/1nBnnNr1 w - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 Na3 g5 Nb1 h5 Kd2 b6 Ke1 Bb7 h3 Bf3 gxh5 g4 Ba3 g3 Bc1 Bg4 hxg4 Bc5 Rh4 Bd6 Rh1 Bf8 Kd2 b3 e4 f5 a4 d5 Ra2 Kd7 e6+ Kc6 c3 g2 g5 d3 Ke3 d2 Kf4 b5 e7 b2 e8B+ Nd7 e5 b4 a5 d4 e6 d3 g6 Kb5 e7 Nf6 a6 Rh7 a7 Ng4 g7 Ne3 Bg6 Ne5 g8B Nf3 Be6 Ne1 Rh4 Qc8 Qf3 d1R Na3+ Ka4 Rg4 Rd2 Qb7 b1N Nf3 g1R Nh2 Rb2 Qh1 d2 Bd3 d1N Qb7 Rbg2 Rd2 N3c2 Nc4 Rg3 Nd6 Rh3 Qg2 Rb8 a8B Qe8 Nc8 Bh6+ Rg5 Qh8 e8B+ Ka5 Bec6 Rbb7 Bcd5 Ka4 B3e4 Ra7 Rd4 Ra6 Qf3 Rgg3 Qg2 Re3 Bd3 Re5 Bdc6+ Rb5 Qd5 Rg7 Ke5 f4 Kf6 f3 Bdf5 f2 Rgg4 Bd2 h6 f1R Bh5 Ng2 Bg6 Rg1 Nf1 Nge1 Bh5 Re3 Bhg6 Rh7+ Kg5 Rh3+
1B2R2b/1N3N2/N1q5/3qPn2/bqp2K2/3P3R/NkNQBb1n/1Nb1b2b w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 Bh3 dxc4 Bg2 b5 axb5 f3 Bh3 a6 Bf1 f4 h3 h5 Na3 g5 Nb1 a5 Qa4 Rh6 Qd1 Rf6 h4 Rf5 gxf5 g4 Qc2 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Ba3 Qb3 Be7 Qd1 Bf8 Kf2 Kf7 b4 c5 e4 g3+ Ke1 f2+ Ke2 a4 Kf3 c3 g6+ Kf6 g7 Ke5 f6 Kd4 b6 c4 b5 g2 b7 c2 f7 a3 b6 h4 d3 h3 Qe2 a2 Rh2 Nf6 g8N Bb4 f8N Ng4 Nd7 Nc6 b8N Ne7 b7 Be1 Bd2 c1B Nc5 Nf5 Nba6 Qd5 b8N Bd7 Nb4 Ba4 N8a6 Qc6 Rh1 h2 Nb7 Qd5 Nh6 Qc6 Nh3 g1B Nf7 Qd5 Qd1 Qc6 Be2 f1Q+ Nf2 Qd5 Na3 Qc6 Be3+ Kc3 Nb1+ Kb2 Nc2 Qd5 Bc5 Qc6 Be7 Qd5 Bh4 Qh3+ Bg3 Qh6 Qd2 Qhc6 Kg2 f3+ Kh3 Kb3 Nd1 f2 Ndc3 Kb2 Kg2 f1B+ Kf3 Bg2+ Kf4 Bgf2 Kg5 Qdc5 Bb8 Qb4 Kf4 Bf3 Rg1 h1Q Rg3 Nh2 Rg8 Bd4 Re8 Bh8 e5 Qg2 Rd8 Qg8 Re8 Bh1 Nfd6 Qgd5 Nf7 Bf2 Re6 Be4 Nc7 Nf1 Re8 Bg2 Nba3 Bf3 Qe3 Bd2 Na6 Be4 Re1 Bc1 Qd2 Bf3 Nab1 Bh1 Bd1 Nh2 Re3 Be1 Bh5 a1B Rg3 Kb3 Na2 Bd4 Rh3 Bdf2 Be2 Kb2
1Q2rr2/1R3q2/n2Rq2P/B1P3N1/qN1R3p/3np3/1RR1R2n/1Kq1b1Bk w - - 0 1 illegal: No proof kernel
B7/q1r4n/QNnknBrP/3n1B2/1qB1KR1p/5p1P/B4RB1/Nq5n w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 h5 b4 a5 g5 e5 fxe5 axb4 Qd2 d5 Qc3 g6 Qxc8 Bh6 gxh6 Ra7 Qf5 Ra3 Qc8 Ra8 Kf2 Ke7 Kf3 b5 e4 f5 a4 b3 c4 f4 c5 b2 e6 h4 a5 b4 h3 b3 a6 g5 a7 d3 e5 d4 c6 g4+ Ke4 f3 c7 g3 Ra4 d2 Nc3 d1N Rb4 d3 Rh2 b1Q Rf2 g2 Bb2 Rh7 Qa6 Qd7 c8B Ne3 Nge2 g1N Nc1 Ne2 Na4 Nf4 Nb6 Nc6 Bg2 Ned5 Rd4 Rb8 a8B Qa7 Ba1 b2 Nb3 Rg7 Rb4 Rb7 Rc4 Kd8 e7+ Kc7 e8B Rg6 e6 Kd6 e7 Rc7 Bf7 Ne6 e8B d2+ Rc2 Nf8 Bf5 d1N Bed7 Ne6 Bc8 Qc1 Rc4 Qd2 Bd7 Qb4 Bde8 Na5 Bb5 Nc6 Rd4 b1Q+ Bd3 Qb2 Bc4 Qa2 Bc3 Qb2 Na1 Nf6+ Kd3 Qc1 Rf4 Nh7 Bf6 Qcb1+ Rc2 N1e3 Ke4 Nf1 Bg8 Qa2 Rf2 Ng3+ Kd3 Nh1 Ke4 Qab1+ Rc2 Ned4 Ba2 Nde7 Bgd5 Ne6+ Bdc4 Q1b3 Rd2+ Nd5 Rf2 Qb1+
2k1BN1Q/1q1R2n1/pK4N1/2nq2P1/P2Bbr2/3q4/N2R2pq/NnnNN3 w - - 0 1 legal: proof: b4 c5 bxc5 d5 c4 dxc4 f4 f5 g4 e5 Bg2 exf4 Bh3 f3 Bf1 f4 h3 g5 c6 b5 Ba3 a6 Bc1 Bh6 h4 Ra7 Rh2 Rf7 Rh1 Rf5 gxf5 g4 Nh3 Qe7 Ng1 Bg5 hxg5 Qd8 Kf2 h5 d4 h4 e4 c3 a4 b4 f6 b3 c7 Kd7 d5 h3 d6 h2 e5 c2 e6+ Kc6 f7 Kb7 f8N b2 d7 Rh6 e7 Rd6 e8N Rb6 Nf6 Qe7 d8N+ Ka8 Nd5 Qe5 Qd4 Rb4 Be3 c1N Nbc3 b1N Ra2 Nd7 Rd2 Bb7 c8N Kb8 Nce7 Nh6 Bb5 Nc5 Neg6 Kc8 Nde6 Nf5 Nd1 Ng7 N5c3 Be4 Be8 Qd5 Na2 Rc4 Qa1 Qa8 Nd4 g3+ Ke1 g2 Nb3 Rd4 Kf2 Rb4 Bd4 Rc4 Ne2 Qd5 Rf1 h1Q Ng1 Qh2 Re1 Bd3 Re7 Be4 Qc3 Qa8 Na1 Rb4 Rd7 Rc4 Nb2 Rb4 Ke1 f2+ Kd1 Rc4 Nf3 f1Q+ Ne1 Qd5 Qh3 f3 Qh8 f2 Bf7 Rb4 Be8 N5d3 Kc2 Nc5+ Rd3 Qfg1 Nd1 Rc4+ Kb2 f1Q Rd2 Qd3 Nh7 Nc3 Ka3 Qb8 Nhf8 Qgh2 Be5 Rb4 Bd4 Qba8 Bf7 Rb6 Be8 Rf6 Kb4 Nb1 Ka5 Rf4 Kb6 Qab7+
B1qBN1Rb/NK5R/pN2q2n/1bQ1bqbN/8/1Pp3P1/2q2N1n/1k3N2 w - - 0 1 illegal: No possible last move
Q2Rb1RR/8/pbq1qbp1/3N1PBq/3k3P/R2Nr1Rr/1p5q/1R1B2K1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 g4 d5 cxd5 h5 Qc2 hxg4 Qd1 b4 b3 c5 Qe2 c4 Bg2 c3 Bf1 Nd7 Ba3 Nh6 Qd1 Ne5 Bc1 Nc4 bxc4 Nf5 Qe2 Nd4 Qd1 Nb5 axb5 Ba6 Be2 Bb7 Bf1 Bc8 h4 Kf7 f4 Kf6 Kf2 e5 d4 g6 f5 b3 d6 b2 c5 c2 b6 Qc7 c6 Bg7 d7 Re8 d5 g3+ Kg2 e3 b7 e4 b8R Ke5 d6 e2 Nh3 e1B Nf2 e3 Nc3 e2 Rb3 Bf6 Bg5 c1Q Nd5 Ba5 Rc3 e1Q Be2 Qb6 c7 Qc6 Qa4 Qcd1 Rf3 Rb8 Raa3 Rb3 Rf1 Rc3 Kh1 g2+ Kh2 Rc1 Rg3 Bb6 Qa5 Kd4 Nd3 Rc2 Bf3 Qe4 Bh5 Qdg4 Rb1 Qe7 Qa6 Rf2 Qb7 a6 Qa8 Qge2 Bf3 Qh7 Bg4 Qh5 Bf3 Qe4 Bd1 Rc2 d8R Re6 Rg8 g1Q+ Kh3 Bd7 Rh8 Be8 d7 Qe5 d8R Qed6 Rg8 Re3 Rh8 Qe5 Rg8 Qee6 Rh8 Bf7 Rdg8 Qf2 c8R Be8 Rd8 Qd2 Be2 Rc1 Kh2 Rh1+ Kg2 Rh2+ Kg1 Rh3 Bd1 Qh2+
N1RbB2r/6Q1/2Nn1r1N/2b2rKN/qP1N4/Pq1bB3/k4q1N/2nqq2R w - - 0 1 illegal: No proof kernel
4Rq1r/1PKQb3/Nr1nB2R/R1b2R1n/2P2B2/b1R1nb2/1b2Nq2/R1r4k w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 b4 e5 h4 g3 f4 g4 c4 a4 h5 g2 h6 a3 b6 a2 b7 e4 b5 e3 b6 e2 h7 e1B Bb2 g3 Bc1 d3 Rh5 d2 Qc2 d1N Qe2 Na6 b8R Bb7+ Kd4 d5 Bd2 Nc7 Rh3 Be7 Qd3 Qf8 Nc3 Ne3 Nb5 Ra6 Ne2 g1Q Ra8 Ne8 Nc7 Nd6 Kc5 g2 Re8 Bc6 b7 Rb6 Na6 Qf2 Rf3 g1B Bh3 d4 Rg3 Kf7 f6 Bf3 Qf5 d3 Qd7 Qg7 f5 Qf8 Bc1 d2 Bg4 d1R Rh3 Rb1 Bd2 Rbc1 Kb6 Rb1+ Kc7 Rb6 Bc1 Bb4 Bd2 Rc1 Rh6 Nf1 Bf4 Ba3 Rh5 Ng3 Rh3 Nh6 Ra8 Nh5 Ra7 Bd5 Rc3 Bf3 Bh3 Ng4 Ra8 Rg8 h8R Ne3 Rh6 Rh8 Ra7 Kg8 f7+ Kg7 Re6 Kh7 f6 Kg6 Ra8 Ng7 Re8 Kh5 Re5+ Kh4 Ra5 Nh5 Be6 Qh6 f8R Qg7 Rf5 Kh3 f7 Kg2 Ra5 Kh1 Rg8 Qf6 f8R Qh6 Rff5 Qf8 Rb1 a1B Rg6 B1b2 Ra1 Bh2 Rh6 Bg3 Bg5 Be5 Bf4 Bd4 Rc8 Bdc5 Ra8 Bab4 Re8 B4a3
2N1b2q/P1RB2qB/K1B5/rn2P1R1/rq2n2b/n1rkB2n/BB3n2/4Q2N w - - 0 1 illegal: No possible last move
R2b4/1b1RR3/1n2r1n1/PR1BPrnq/2NKR3/r7/b2Qr2b/R1N1B1bk w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 a4 Kd6 h4 Ke5 d4+ Ke4 d6 c5 h6 g5 d5 f5 h5 b5 e3 c4 h7 c3 h6 g4 d7 g3+ Ke2 g2 d6 b3 Kf2 b4 Ke2 f3+ Kf2 f4 Ba3 c2 Ra2 c1B Qd2 b2 Ne2 g1B+ Ke1 b3 Kd1 f2 Qc3 Kf3 Qe1 Qa5 d8R Bb7 d7 Bd6 e4 Ne7 Re8 Qh5 d8R Ng6 Re7 Nd7 Rh4 Re8 h8R Nb6 h7 Be3 Bh3 f1R Ra1 Rf2 Be6 Kg2 Rdd7 f3 Qd2 Bdh2 e5 Bg5 Nc1 Re2 Bb4 f2 Na3 b1B Re4 b2 Nc4 Ba2 Kc2 f1R Kd3 b1N Bd5 Nc3 Ba5 Rff2 Kd4 Kh1 Rf8 Ra6 h8R Rea8 Rb8 Rf5+ Re3+ Ne4 Rhc8 Kg2 Rc5 R8a7 Rb5 Kh1 Ra8 Bf6 Rg7 Bd8 Rge7 Nc8 Bb4 Re6 Bc3 Nb6 Bb4 Rf3 a5 Ng5 Qc2 Ra6 Be1 Rf6 Qd2 Rf8 Bf2 Rf5 Re4 Rfe3 Be1 Ra3+ Qe3 Nc8 Qf2 Re6 Qe3 Nb6 Qf2 Ree3 Qd2 Re2+
4n2R/P5k1/q1RB1b2/3RRnnb/B7/Nr1qb1rb/2KbbPRQ/3RN3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 h5 a4 c5 g4 e5 g5 b5 f6 e4 a5 b3 d6 h3 d5 h4 a6 c4 d7 c3+ Ke1 b4 d6 h2 a7 e3 Bd3 h3 Nf3 c2 Ke2 b2 Be4 b3 Kd3 e2 Nfd2 e1B Qe2 Nc6 Ra6 Nd4 Ra1 Nf3 Nf1 Qb6 d8R Bd2 d7 Rb8 Rg1 h1N Re8 h2 d8R Rh3 Ne3 Bg7 Ng2 Ng3 Ra6 h1B Rd5 Nf5 Ree5 Rg3 Na3 b1Q Rd1 b2 g6+ Kf8 f7 Nf6 Qe1 Ne8 Qg1 Bf6 Qh2 Kg7 f8R Ng5+ Bf3 Bd7 Rh8 Qe6 Rc6 Rb3+ Rc3 Be3 Ne1 Bc8 Be4 Bf3 Bd2 Bh5 Bg2 Rb6 Rc6 c1B+ Kc3 Ba6 Be4 Rb7 Bc2 Bae2 Bb3 Qe4 Ba4 Qf3 Kc2 Rb3 Bb4 Bcd2 Rcc5 Qa6 Rc6 Rd3 Bd6 b1B+ Kb2 Ba2 Kc2 Bc4 Rh6 Rb3 Rh7+ Kg8 g7 Bf1 Rh6 Bce2 Rh8+ Kf7 g8R Bh3 Bb8 Ne6 Rg4 Ng5 Bc7 Kg7 Bd6 Qf4 Nb5 Qd4 Na3 Rf3 Rg1 Rg3 Rg2 Qdd3+
1qnK1Rb1/5B2/2Pb4/kbB3Q1/B2qNrN1/2r1B1qn/RqBP4/2B2b1q w - - 0 1 illegal: No proof kernel
3R3b/n4K2/3b1BQq/3rrBr1/B1B3P1/2n1Bnk1/PnN1B3/R2b1bNq w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Kd2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 b5 f4 h5 c4 e5 c6 h4 g6 b3 c7 e3 g7 e4 g3 b2 c5 e2 c6 Kg4 f5 h3 f6 b4 f7 b3 Qc2 e1B Bh6 h2 Bb5 e3 Ba4 e2 Bb5 Nf6+ Ke5 d5 g8B d4 Bd2 d3 Bc3 d2 Qd1 Bd6+ Kd4 Ne4 Kd5 Nf2 f8B Qf6 Bf7 Rg8 Ba5 Qh6 Bb4 Ba6 Bc3 Nd3 Qc2 d1B Bf6 Bc3 Ke6 e1N c8B Rg5 c7 Nf3 Bcd7 Nc6 c8B Na7 Na3 b1R Bg8 Nb2 Be2 Rb8 Ba4 Rbb5 Qg6 Rd5 Nc2 Bd3 B8e7 Rc1 Bd4 Bc4 Be3 Bh8 Bf6 Bb5 Ne1 Rcc5 Nc2 Ba6 Bb7 Re5+ Kf7 Bb5 Be4 Rcd5 Nh3 Bd3 Rf1 h1Q Ng1 Bb5 B4d3 Nc4 Bh7 b2 Re1 b1N Rf1 Na5 Bc4 Nc3 Bcb3 Bd7 Rf2 Bc8 Beb5 Rd4 Qg7 Bc5 Rd2 Ba6 Bd5 Nc4 Bf5+ Kh5 g4+ Kh4 Rd3 Kg3 Qg6 Nb2 Bde6 Rde4 Rd7 Bd6 Rd8 Rd4 Bf1 Bd3 Bc4 Rdd5 Bg2 Nh4 Bf3 Bf1 Bfe2 Nf3
rkn2Bbq/1n3b2/R5P1/5RrB/4Rn2/PRQ1r3/2RK1qNR/b1n1Nb2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 d4 c5 g4 Kc7 f6 b5 a3 e5 g5 h5 g6 e4 f5 b3 f7 b4 f6 e3 Qc2 b2 Kd1 b3 Bg2 c4 Qf5 h3 Qd3 h4 Ne2 c3 Qe4 h2 Rf1 h1Q Bf3 h3 Nf4 h2 Qc2 Bg7 f8R Ne7 f7 Bh3 Bh5 Nc8 Re8 Qh4 f8R Nc6 d6+ Kb8 d7 Qf2 d8R Na5 d5 Nb7 Nd2 b1N d6 b2 d7 Be6 Rg8 Bf7 Ra2 Be5 Qb3 e2+ Kc2 e1R Ng2 Bd4 Re4 Re3 Rgf8 Bg8 Rf6 Ra5 Qc4 Rg5 Ra6 Bf7 Rf8 Bg7 d8R Be5 Kb3 c2+ Rd3 Nc3 Nf3 b1B Nfe1 Nd5 Qc3 Nf4+ Kb2 Bg8 Rf5 Bd4 Bd2 c1N Rc5 Bc2 Rc7 Bd1 Rh7 Bg4 Kc2 B4e6 Kd1 Bef7 Rc2 Qhg1 Rh6 h1B Rh7 Qh2 Rh6 Rh3 Be3 Be5 Bc5 Re3 Bf8 Bg7 Qc4 Bf6 Rb3 Ba1 Qc3 Qh3 Nh4 Bg2 Rh7 Qfg3 Kd2 Qf3 Rf2 Bf1 Rh2 Qfg3 Nhg2 Qgh4 Be2 Qf2 Rh5 Ra5 Rd5 Rh5 Rf5 Rg5 Rc6 Ra8 Ra6 Qfg3 Bf3 Qh8 Bh5 Qf2+
1R1b4/2rn1nN1/1Rq3Bk/RqB4P/3Ppb1n/K2R3q/R3bN1r/2r1RQ2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kf7 d4 Kg6 Kd2 a5 Kc3 c5 Kb3 e5 h4 c4+ Ka2 e3 b4 g3 f5+ Kh6 d6 g5 b6 g2 f6 g4 f7 c3 b5 c2 d7 a4 b7 e4 b6 g3 Bd2 c1R Nc3 a3 Nge2 g1Q Nf4 g2 Ne6 Qg5 d8R e2 Kb3 e1B Ra2 Nd7 b8R Be7 f8R Qh2 b7 g1N Ng7 Bg3 Bh3 Ra7 Bf5 Qh3 Bg6 Nf3 Qf1 Bf4 Nd1 Qb5+ Bb4 Rh7 Rde8 Bd8 Nf2 Rh8 Ra8 Qc6 b8R Ba6 Re7 Be2 Bc5 Rc7 Ra5 Rh7 Re6 Rh8 Rd2 a2 Ka3 a1Q+ Ra2 Qb1 Rb3 Rh7 Rd3 Qbb5 Ref6 Ng5 Rg1 Ne7 Re6 Nf7 h5 Nf5 Rf6 Nh4 Rg8 Qd5 Rb6 Qdc6 Rf8 Rh8 Qg2 Rg8 Re1 Be7 Rfb8 Bd8 Qf1 Rf8 Ne8 Rg8 Bh7 Rg3 Ng7 Rg2 Bg6 Rh2
5q2/1BBqkP1P/6bp/2b4B/NB1rB2N/Q2nb1r1/K5R1/n1Bbrb1R w - - 0 1 illegal: No proof kernel
1qNNk2b/qb1p2q1/4nR1N/b2Q1NN1/Pr1b2NB/3B1r2/R5P1/2Kb2n1 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Kd2 b5 c4 e5 a4 h5 f4 h4 g6 e3+ Kc2 e4 g7 b3+ Kb2 b4 c6 h3 c7 h2 f5 e2 f6 e1B c5 e3 c6 e2 Qc2 Ne7 g8N Nf5 Na3 Nh4 Nb5 Na6 Qd3 Bg7 Bf4 Rb8 Qd2 Bb7 c8N Bf2 c7 e1B Kc1 Nc5 Qd6 Bd4 Nf3 Qe7 Nba7 Ne6 Ne5 Nf3 Bd3 Rh3 Rf1 h1Q Bg5 Bh8 Nh6 Qg7 Ra2 Ng1 Qd5 Rf3 Nac6 Bec3 Bh4 b2+ Kb1 Qh3 N8e7 Qh2 Kc2 b1B+ Kc1 b3 c8N Ba5 Neg4 Qc7 Nef5 Bc2 Nd8 Qb6 Ndf7 Qa6 Ng5 Bd1 Rff2 Qa7 f7+ Kd8 f8N Ke8 Rf1 b2+ Kb1 Ba6 Rf2 Rb4 Rf1 Nf4 Nfe6 Bb7 Nd8 Ne6 Rf2 Be2 Kc2 b1Q+ Kd2 Qb3 Kc1 Bd1 Nfe3 Rg3 Rf6 Rf3 Nef5 Qc4+ Bc2 Qb5 Bd3 Qbb6 Nf2 Qd6 Nfg4 Qdb8
1N5n/pnb3RP/3rr3/q1BBkBqq/N1P1q1B1/3QB2R/1r1B2b1/6Kq w - - 0 1 illegal: No possible last move
N2Brn2/b2B1r2/3Kn3/r1Q2B1P/BNr1rB2/krB5/4pP2/rb2Rq1R w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 e5 Ke3 Ke7 h4 a5 c4 d5 b4 g5 c6 Kd6 b6 g3 b7 g2 b5 Kc5 h5 Kb4 c5 d4+ Kd2 g4 b6 g3 c7 d3 Ke3 a4 c6 d2 Nh3 g1R Qe2 d1R Qd3 a3 Be2 a2 Qd5 g2 Rh2 Nh6 Bb5 Nf7 Ba4 Ng5 Bb2 Ra5 Nf4 Bf5 c8B Rd4 c7 Rc4 Qc6 Qd1 Rh1 Qf1 Ne6 Nd7 b8B Bc5+ Bd4 Rf8 b7 Re8 Nc3 Ba7 Nd5+ Ka3 Nb4 Nf8 Re1 a1R Bd7 Rb1 Qb6 Rb3+ Bc3 Bh7 c8B Bg6 Nc7 Nge6 Rh3 Rh1 Qc5 g1R Rh4 Bf5 Na8 Rg7 Bc7 Rf7 b8B Bh7 Bd8 Bg6 Kd2 e3+ Kd1 e4 Kc2 e2 Bf4 Rg1 Rh1 e3+ Qf5 Rg4 Kd3 Rc6 Ke4 Rc4+ Kf3 Rh4 Qc5 Bb1 Kg3 Nd4 Bf5 Nde6 Bcd7 Re4 Rc1 e1R Rd1 Re2 Re1 Ra2 Kf3 e2 Kg3 Ra1 Kf3 Rd4 Ke3 Rd3+ Ke4 Rd4+ Ke5 Re4+ Kd6 Rc4 Be3 Rhe4 Beg5 Qh3 Bf4 Qf1
r2r4/NK2b2R/B6N/1b2b2N/1BR1P1qk/Pqn1npq1/3NQ2N/1N4qn w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 b5 d6 c5 Kd5 f5 e4 c4 d7 b3 a3 c3 h6 b2 h3 c2 h7 b4 Qd3 b3 Qa6 Kh4 Be3 c1B Qe2 g5 Bd2 g4 Bb4 Qc7 d8N g3 Nb7 f3 Nd6 f4 Nc4 g2 Ncd2 f2 Rh2 Nd7 Ngf3+ Kh5 h4 g1Q Rh1 Be7 Nh2+ f3 Ra2 Qcg3 Kc6 Nh6 d5 Ng4 d6 Nb6 d7 Rd8 h8N Na4 Ng6 Ba6 Nf4+ Kh6 h5 Kg5 h6 Nc3 h7 Ne3 h8N Kh4 Nf7 Bb5+ Kb7 Qg4 Nh6 Q1g3 Bg2 f1N Ra1 Qf2 Nh5 Ng3 Bf1 Qg2 Rg1 Nh1 Ra2 Q2g3 Rg2 Rf8 d8N Rh8 Nc6 Rhd8 Nc4 Bd2 Na7 Bc1 Nbd2 b1Q Rc2 Qa2 Nb1 Bb2 Ncd2 Ba1 Rf2 b2 Rc1 Ncd1 Rc4 Qb3 Nc3 b1Q Rg2 Qc1 Ncb1 Be5 Rg1 Q3h3 Rg3 Nc3 Rg1 Qf4 Rg7 Qhg3 Rh7 Qfg5 Bh3 Qcg1 Bd7 Ba4 Bb5 Q5g4 Ba6 Bb5
N1nB1BNk/8/2qBP3/q2Pq3/r2rB3/Br2nn1B/3r1p1R/K3bQRb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 a5 g4 c5 e4 f5 d4 Kf7 Kd2 Kg7 Kc3 h5 Kb2 a4 d6 c4 g5 c3+ Ka2 c2 d7 h3 g6 f3 e5 f4 b6 h4 b7 f2 b5 f3 b6 a3 e6 h2 Be3 c1Q Bg2 f1N Bh3 f2 Nd2 Ra4 Nc4 Nc6 b8B Nge7 b7 Ne5 Bd6 Qa5 b8B Bb7 d8B Nc8 Nb6 Qc6 Bc1 Ne3 Qf1 Nf3 Ne2 Kg8 Rg1 h1R g7 Rh5 Nf4 Rd5 Kb1 a2+ Kb2 Kh7 g8B+ Kh8 Nh5 Rh2 Ba3 Bb4 Nf6 Be1 Na8 Rg2 Bh7 Rg4 Rb1 a1R Bad6 R1a3 Bf8 Qd6 Ra1 Qe5 Be4 Rf4 Kb1 Rb3+ Bb2 Rg4 Ng8 Rd7 Bbd6 Bc6 Bg2 h3 Ra3 h2 Bh3 h1Q Ka1 Bb7 Bc1 Rc7 Bb2 Rc2 Bc1 Rd2 Bb2 Rab4 Ra4 Bd5 Ba3 Rc4 Rb4 Bc6 Rb7 Ra4 Rg7 Rf4 R7g2 Bb7 Bb1 Ng5 Rh2 Qhd5 Rgh1 Qdb5 Rg1 Bh1 Bc2 Qc6 Bb1 Nf3 Bg6 Rdb2 d5 Rfd4 Be4 Rbd2
N1QRRq1q/R1bBBR1R/2P2q2/3Knrb1/2N5/1R6/bn1Pp2q/k1r4n w - - 0 1 illegal: No proof kernel
r5K1/1n2R3/PR2BN1b/3b2R1/rnb1Q1p1/1r4k1/Rn2PRN1/2RqBrq1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 a4 b5 d4 g5 h4 c4 h6 b3 a5 b4 a6 f3 h7 c3 h5 f2 h6 c2 Bd2 c1N Nh3 b2 Qc2 f6 Ra2 b3 Nc3 b1B Be1 b2 Nf4 Bd7 Ng2 Bc6 Kf5 Nd3 Kg6 f5 Kf7 f4 Rg1 f3 Ne4+ Kc7 Nf6 Kd6 Rh1 Ne7 Qc4 Rg8 h8R Nf5 h7 Bh6 Rh5 Re8 Rf8 Re4 h8R g4 Rg5 Bb7 Kg8 Nc6 Rh7 Ncb4 Re7 Qb6 Rb8 Bc2 Rf8 b1R Rc8 Nb2 Qd3 Rf4 Qe4 Bf8 Rc4 Bd3 Rc1 Bc6 Nh4 Qd8 Bg2 f1Q Bh1 f2 Ng2 Qg1 Rh7 Qd7 Re7 Kc7 d6+ Kb6 d5 f1R Bg3 Bc4 Be1 Qd8 d7 Kc7 Kf7 Kd6 Kg8 Qc7 d8R+ Qd7 Rde8 Bh6 Rb8 Bb7 Rf8 Qa4 Rb8 Qd1 Rf8 Ng7 Rb8 Ne6 Rf8 Nd8 Rff7 Kc5 d6+ Bd5 d7 Nb7+ d8R Kc6 Rb8 Kd6 Nh4 Na4 Bf3 Rb3 Ng2 Nb2 Qb1 Bc6 Bd5 Re4 Be6 B6d5 Rgg7 Ke5 Rff8 Nc5 Rb6 Nb7 Rg5+ Kd4 Nh4 Ke3 Qd3+ Kf4 Qc2 Qf2 Ng2+ Kg3 Qb1 Rd4 Qe4 Bd3 Rgg7 Nc2 Ne8 Ra4 Rg5 B3c4 Rff7 Nb4 Rf8 Kh3 Rff7 Qg1 Rf2 Ra7 Nf6 Kg3 Kh8 Ra8+ Kh7 Ra7 Kg8 Ra8+
rq1BnR1n/NBrb4/PN4rb/2N2p2/1k1n2b1/3QKP2/1qb5/N4NNR w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 gxh5 Bb4 Bd2 Bd6 Bc1 Bf8 e4 Ke7 Ke2 d5 h4 c5 a4 b5 e6 Kd6 e5+ Kc6 e7 g5 e8N f5 h6 c4 h5 Kc5 h7 c2 h6 c3 e6 d4 e7 b4 a5 d3+ Ke3 g4 Nd2 b3 Ng7 g3 e8N g2 Nf6 b2 Ne6+ Kb5 Nfe4 b1B N4c5 Ne7 Nd4+ Kb4 N4b3 Rg8 h8N Rg4 h7 Rg6 Nf7 Bd7 h8N Na6 Ne5 Nc7 Nec4 Ne8 Nb6 Qb8 Nf7 Bg7 Bb2 c1Q Nd8 c2 Bf6 Qb2 a6 c1N Rh8 Bc2 Rf8 Ne2 Rc1 Nd4 Na1 Bh6+ Bg5 Rg7 Nc6+ Kb5 Be2 Ng6 Nf1 Nh8 Na7+ Kb4 Bf3 d2 Bb7 Rf7 Qe2 d1B Qd3 Bg4 f3 Rg7 Ne2 g1R Rd1 Rg3 Ng1 Rg6 Re1 Bg7 Bd8 Rc6 Re2 Rc7 Rh2 Bh6+ Kf2 Bh5 Rh1 Rg5 Ke3 Bg4 Bf6 Rg6+ Bg5 Bg7 Bd8 Bh6+
Bn3Rb1/b2p1RR1/R5rR/P1Q3r1/1q1bN1qB/2rk1P2/1R3nN1/2n3Kb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Kf7 c4 Kf6 h4 Ke5 h6 Ke4 f6 g5 h5 b5 h7 e5 h6 d3 c5 b3 a5 b4 f7 g4 c6 g3 c7 d2+ Ke2 b2 Bh3 g2 Ra3 b3 Bg4 Nf6 Rh3 Rg8 h8R Ra6 h7 Bc5 f8R Qe7 Be6 Bd4 Rf3 Rg5 Rhg8 Qb4 h8R Bb7 c8R Ng4 Nh3 g1B Kf1 Rc6 Bf7 Rc3 Rh6 Bd5 Rf4+ Kd3 Rcc6 e4 Ra2 e3 Rg7 Bh1 Ra6 Ba7 Qe1 d1Q Nd2 b1B Rb2 Ba2 Bd5 Qf3 Ba8 Qfe4 f3 Nf2 R4f6 Qg4 R6f7 Rg6 Rb1 b2 Ne4 Bd4 Bd2 Bc4 Qc1 e2+ Ke1 Ba7 Bg5 Be6 Bh4 Rg5 Ra1 b1R Ra2 Rbb3 Rb2 Bd5 Rff6 Bg8 R6f7 Rc6+ Nc3 Rcg6 Nf4+ Kd4 Ng2 Kc4 Kd2 e1N Ke2 Ned3 Ne4+ Rc3 Kf1 Bd4 Qe3 Ba7 Qb6 Nc1 Qc5+ Kd3 Re7 Bh2 Ref7 Be5 Kg1 Bd4
1nb1rN2/1n2R1B1/1b2N3/4B1R1/2bP1rb1/bk1rP1qB/1B1pQb2/1B1KB3 w - - 0 1 illegal: No proof kernel
2N2n2/N2Rr2b/k1N1n1Np/q1PnN3/1P3n2/1nbR1n1r/2b1NK2/4QBB1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 b4 Kd7 g4 Kc7 f4 Kb7 f6 e5 b6 a5 c5 e4 f5 d3 g5 e3 g6 d4 g7 d2+ Ke2 a4 f7 a3 f6 a2 Bg2+ Nc6 Kf1 h3 Nf3 h2 Qc2 d1B Ng5 e2+ Ke1 d3 Qc3 d2+ Kf2 e1N Na3 Ka6 b7 Nge7 g8N Qa5 Nf3 Bc2 Ng1 Nf3 Ne2 Nd8 Rd1 B8f5 Bf1 Ra7 Nb5 Bg7 f8N Ne6 f7 Ng6 Nd7 Ngf8 Ne7 Bfd3 Rb1 a1N Ne5 Nb3 Nc8 Bg6 Ra1 Bgd3 Ra3 h1N+ Ke3 Ng3 Kf2 Nh5 b8N+ Kb7 Bb2 Nhf4 Nbc6 Ka6 Bc1 Re7 Nba7 h6 Qa1 Bh7 Bb2 Bf6 Bd4 Rg8 Qb1 Rg3 Be3 Nd7 f8N Rh3 Nfg6 Ndf8 Qa1 Nc1 Rd3 Nb3 Rc1 Bd1 Rcc3 Bc2 Rd7 Bg7 Rcd3 Bh8 Qe1 Bf6 Bg2 d1N+ Kf1 Nc3 Bg1 Bh8 Kf2 Ncd5 Bf1 Bg7 Ng4 Ba1 N4e5 Bc3
4n1k1/p1B4q/P2rKb2/2B1Nn2/B1n1Brr1/3B1Pn1/2r1b2N/1Q2nRRB w - - 0 1 legal: proof: e4 c5 c4 f5 h4 g5 hxg5 fxe4 b4 d5 bxc5 dxc4 Ke2 Kf7 Ke3 h5 Kf4 b5 Ke5 e3 g4 e2 d4 e1N a4 b4 c6 b3 d5 h4 d6 b2 c7 c3 d7 h3 a5 c2 a6 h2 Bd2 c1R Be3 Rh4 Nf3 Nh6 g6+ Kg8 g5 Rg4 g7 Nf5 Ke6 Rc2 Na3 b1N Bc5 Nd2 Qb1 Nc4 Rg1 h1N Nh2 Nhg3 Bd3 Qe8 Be4 Qh5 Bh1 Bb7 c8B Bf3 d8B Qh7 Bd7 Be2 Ba4 Nd7 f3 Nf6 Bc7 Rd8 Rf1 Ne8 Rg1 Nce3 Nc4 Rdd4 Ne5 Rde4 Bc6 Ref4 Be4 Nc4 Qb2 Ng2 Raf1 Ne1 Qb1 Qh4 Kd7 e6 Bd3 Be7 Be4 Bf6 Bd3 Kh7 g8B+ Kh8 g6 Qh7+ Bf7 Kg7 Nc6 e5 Ke6 e4 Ne5 e3 Be4 Ned6 Be8 Kg8 Ba4 Ne8 g7 Bd1 Bd3 e2 Rf2 Ng2 Rff1 e1R Be4 Be2 Bd3 Rd1 Be4 Ne1 Bd3 Qh3 Be4 Kh7 g8B+ Kh8 Bf7 Qh7 Bh5 Kg8 Bg6 Rd4 Bd3 Nh6 Bge4 Nhf5 Qa1 Rd5 Qb1 Rd6+
RNk2b2/1b1b1p2/1nB2n2/Qn3Kb1/RN1B2P1/r2r2B1/P2B3B/B1q2n1r w - - 0 1 illegal: No proof kernel
1nr1QR2/1rk3rR/3R4/1pB1Pr2/b4rRb/R5q1/1Prr4/bR1NN1KB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 a5 exf4 Kf2 Nd7 Ke1 Nb6 axb6 Bg7 Nh3 Bh6 Ng1 Bf8 Kf2 Kd7 g4 c5 e4 a5 d4 f5 g5 h5 e5 h3 d6 f3 d5 a4 b7 c4 b8R h4 g6 c3 g7 a3 Ne2 h2 Bh6 f4 Ra2 c2 Qd2 c1R Qd3 h3 Qc3 Qg5 Qe1 Ra7 Qa5 Be7 Ra8 Rc2 Rg1 h1R Ra1 a2 Nd2 h2 Rg4 Rb7 Rb1 a1B Bg2 Nf6 g8R Rd1 Bf8 h1R Rg7 R1h7 Nc3 Qg6 Rf7 Rg7 Bh1 Rhg8 Qa4 Kd8 d7 Kc7 d8R Bf5 Rd6 Nd7 Qb3 Nb8 Ra3 Bd3 Qa4 Bc4 Qa6 Bb3 Qa7 Ba4 Qa8 Na6 Qe8 Nb8 Rff6 Qd3 Rh6 Bf6 Be7 Rf8 Rh7 Bh4+ Rg3 Rf5 Bf8 Rdc1 Nd1 Qc3 Kf1 f2 Rg4 Qg3 Nf3 Rd2 Ne1 Rc5 Rdh6 Rcc2 Bc5 Rf8 Rd6 Rg8 Qh5 Rc8 Qe8 Qc3 Kg2 f3+ Kh2 f1R+ Bg2 Rff2 Kg1 Rd4 Bh1 Rf4 Rf6 Rfd2 Rf8 f2+ Kh2 Rd8 d6+ Kc8 d7+ Kc7 Kg2 Rc8 d8R Qd3 Rd6 Qb3 Kh2 f1R+ Bg2 R1f3 Kg1 Rf5 Bh1 R3f4 Be3 Qd3 Bc5 Qg3+
3b4/1nPpNp2/Rq4N1/nq4rQ/1RB1N1K1/1b4NN/kP1b3N/1rB2qr1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 e4 a5 h4 g5 c4 a4 c5 a3 b6 g4+ Kg2 g3 Kh3 g2 c6 d3 b7 f3 h6 a2 h7 f2 h5 d2 e5 Kd5 e6 Ne7 h6 Na6 b8N Rg8 h8N Rg5 h7 Nc5 Ne2 Kc4 Ng6 g1B h8N Bb7 Nbc3 Bh6 Ngf4 Qb6 Ng3+ Kb4 Qh5 Kb3 Bb5 d1Q Nce4 Qe2 Nhg6 f1Q+ Kh4 Ba6 Nh3 Nb7 c7 Be3 Rg1 Nc6 e7 Nca5 e8N Bd2 N8f6 Bg7 Bd3 Bc4 Ng4 Bf6 Nc6 Rg8 Nh2 Bd8 Nce7 Bd5 Ba6 Qeb5 Rg2 Bc3 Rc2 Bd2 Rc4 Rg7 Ngf5 Rg1 Nfg3 Rg8 Kg4 Rg7 Rb1 a1R Rd4 Ka2 Rb4 Q5c6 Be2 Bb3 Bd3 Qcb5 Bc4 Bc3 Bh6 Rg8 Re1 Rb1 Bc1 Rg7 Rd1 Be1 Rd6 Bd2 Rf6 Q6c5 Ra6 Qcb6 Qh8 Rh7 Qe5 Rh5 Qh8 Re5 Qh5 Rg5+
6nQ/1B1p2nB/BRB3Nb/1KnP3k/2rB4/3nBpb1/R1P2r2/rq3nN1 w - - 0 1 legal: proof: f4 b5 h4 g5 b4 gxh4 f5 c5 a3 Ba6 bxc5 b4 f6 Bb5 a4 exf6 axb5 f5 Rh3 f4 Rh2 Qb6 Rh1 Qd8 g4 h5 d4 a5 Kd2 f5 Kd3 Kf7 Kc4 Kg6 e4 b3 d5 b2 b6 f3 c6 a4 g5 f4 e5 f2 c7 a3 c8B a2 b7 f3 e6 h3 e7 h2 Be2 f1N Kb5 h4 Qd4 h3 Be3 Bh6 Nd2 Ra4 Nc4 Na6 b8B Nc5 Be5 Kh5 Bb7 Qb8 g6 b1R+ Qb2 Re1 e8B Rc1 Rb1 a1B B5d4 Re1 Ne5 Rc4 Bd3 Re2 Qc3 Rf2 Rb2 Rh7 Ra2 Re7 Qb2 Re6 Bf7 Ra6 Be6 Ra8 g7 Ra3 Ng6 Ra6 Ne2 Ra8 Rg1 h1N Bef5 h2 Rg2 Nhg3 Ng1 h1N Bfe4 Nf6 g8B Nf5 Bh7 Ng8 Be2 Ng7 B4d3 Ra7 Rg4 Ra3 Re4 Raa4 Re6 Ra3 Rb6 Raa4 Qb4 Bc3 Qa5 Be1 Qa8 Ra6 Rb2 Ra1 Ra2 Rh2 Bc6 Bg3 Bb7 Nf2 Bc6 Qb7 Qd8 Ne7 Qh8 Ng8 Ka5 Rb4 Ra6 Qa7 Bb7 Rg2 Bb5 Rh2 Bec4 Nfd3 B5c6 Rf2 B4b5 Ne4 Bc4 Qc5+ B4b5 Rc4 Rb6 Qb4+ Ka6 Qb1 Ka5 Qc1 B5a6 Nec5 Kb5 Qb1+
2rNQ3/qBB2P1n/R2b3b/3K4/n1PRNN1N/Nr1r4/p1prb3/5Nkq w - - 0 1 illegal: No proof kernel
1r5n/r3pn2/1nn2p1k/3QBqq1/1N1R1N1b/PRR3R1/bq2K1PR/1BR5 w - - 0 1 illegal: No proof kernel
BRb2B1q/1PKP2B1/r1Q1q3/rp2BNBn/k2pn1NB/6Rb/3b4/r6b w - - 0 1 illegal: No proof kernel
1q1BbK1R/nr2N3/2NNpnB1/1rr3rN/4P1n1/1NP5/5pbk/Q1R1N2n w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 a4 cxd4 axb5 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 Kf2 d5 Kf3 Kd7 Kg4 Kd6+ Kh5 Ke5 b4 f5 e4 a5 c3 e6 b6 f3 b7 a4 g7 d3 g6 f2 b5 d4 b6 f4 Qb3 d2 Bb2 d1R Bd3 f1B Ra3 f3 Ra1 Kf4 Bc1+ Kg3 Bg5 a3 Qb2 a2 Bb5 f2 Be8 d3 Nd2 Ra5 Rc1 a1R Ngf3 Bg2 Ne1 Rc5 Nb3 Ra7 Qa1 Nc6 b8N d2 b7 Nf6+ Kh6 Rg8 Na6 Bd7 b8N Rb7 Nc7 Na7 Nc6 Qb8 Bf7 Be8 Nb5 Nh5 Be7 Nf6 Nd6 Rbb5 Bd8 Rb7 Rc2 Rb1 Rc1 d1N Rh5 Ne3 Rh1 Rh8 g8N Neg4+ Kg7 h5 Kf8 h4 g7 h3 Bg6 Rhh5 Nge7 h2 g8N Rhe5 Rf1 Rg5 Rh1 Nh5 Nf6 Rbb5 Rf1 h1N Rg1 Kh2 Rf1 Nf4 Nh5 Nd5 Rg1 Bf3 Rg3 Bg2 Rf3 Rb7 Rf7 Rbb5 Rh7 Ndf6 Rh8 Rb7 Nbd4 R1b4 Nb3 R4b5
2BN1N1r/3N1P2/Q1p2b2/BNRb1KbN/3p3R/rq2Pr2/5nrn/2bN3k w - - 0 1 illegal: No proof kernel
b2nN3/q5Bb/pq1b2Qp/RNNn2NR/1N3q2/1B4q1/Pr1P3q/2K2k1N w - - 0 1 legal: proof: g4 c5 b4 b5 bxc5 g5 h4 f5 e4 d5 c6 dxe4 Nf3 a6 Ng1 Ra7 Bd3 Rd7 Bf1 Rd5 Nf3 fxg4 Ng1 g3 Bc4 g4 Bf1 Rg5 hxg5 Bd7 Bd3 Bf5 Bf1 Bc8 f4 Kf7 c4 Kg6 c7 Kf5 c5 e5 g6 e3 g7 Ke4 c6 g2 f5 g3 f6 b4 f7 h6 Nc3+ Kf4 Rb1 e4 Nb5 b3 Ne2+ Kf3 Rh5 g1Q Qc2 b2 Kd1 g2 Ng3 Bb7 c8N Kf2 c7 Qh2 Ncd6 g1Q c8N Ba8 Nb6 Ne7 g8N Nd5 Ne8 Nc6 Ngf6 Bd6 Nbd7 Qb6 f8N Nd8 Ne6 Rg8 Qd3 e2+ Kc2 e1Q Ndc5 e3 Ng5 e2 Qg6 Rf8 Bh3 Rh8 Be6 Qef1 Nh1+ Ke1 Bg8 Qff4 Be6 Kf1 Bg8 Nc3 Nd5 e1Q Nb4 Qeg3 Bb3 Q1f2 Ra1 b1B+ Kb2 Bf5 Rb1 Be6 Kc2 Nd5 Kd1 Q2e3 Bb2 Bg8 Kc1 Bh7 Bg7 Qe7 Rb2 Qea7 Rc2 Rf8 Rc4 Rg8 Re4 Rf8 Re5 Rf7 Rf5 Rb7 Nbc7 Qc3+ Nc2 Ne6 Na4 Nb4 Ra5 Qcg3 Nc5 Nd8 Bg8 Qc6 Bd5 Rb5 Bg8 Qcb6 Bf7 Nbc6 Be6 Rb2 Bb3 Nb4 Nb5 Nd5 Nb4 Qgg1 Nec7 Qgf2 Ne8 Qf2g3
2k3b1/n1NN2N1/bn2R1qn/3Pr1p1/NB3pP1/Q1K2R2/3b1qB1/N1N2qn1 w - - 0 1 legal: proof: f4 d5 h4 b5 c4 dxc4 a4 e5 axb5 exf4 h5 a5 Rh3 g5 Rh4 Ra6 Rh1 Rg6 hxg6 Bf5 Qb3 Be6 Qd1 Bc8 e4 Kd7 g4 c5 b4 f5 d4 h5 Kd2 f3 g7 a4 e5 f2 b6 h4 b7 h3 b5 f4 b6 a3 Qc2 a2 Be2 f1Q Qd3 h2 Qa3 Qe8 Kc3 Nc6 Bf3 Qg6 Nd2 Qf2 Nb3 Na7 Ne2 Nh6 Re1 h1B g8N Rh7 Rf1 Re7 b8N+ Kd8 e6 Ba6 Bd2 Kc8 Rac1 a1N Nd7 Nc2 Rce1 Ne3 Nec1 Bg7 Ba8 Bd5 Ngf6 Re8 e7 Bg8 Na1 Nd5+ Kb2 Bh8 Ne4 c3+ Kb3 c2 Nc3 Bf6 Na4 c4+ Kb2 Bh8 Bb4 c3+ Kb3 Be5 Re3 Bd6 Re6 Bc5 b7+ Kc7 b8N Kc8 Ne2 Nb6 Bg2 c1Q d5 c2 Kc3 Qd1 Nc1 Be3 Nf6 Qde2 Nbd7 Qd1 Nh5 Qde2 Na2 c1N Ng7 Qb5 Rh1 Qbe2 Rh3 Qef1 Rf3 Ne2+ Kb3 Na8 Nc1 Nb6 Kb2 Ng1+ Kc3 Rf8 e8N Rf5 Nc7 Re5 Be7 Qb5 Bd6 Qbf1 Bb4 Bd2+
R3N1K1/n1n5/Bp1Q1bq1/1Nn1B3/PP1N2N1/r1N3Rp/1kbn4/2Nbn1b1 w - - 0 1 illegal: No proof kernel
Nb3rRB/n5p1/1Q1r3P/N4Nbn/2b4P/kp4N1/1p1r4/NqNKRB1n w - - 0 1 illegal: No possible last move, all moves rejected
N5BK/1B5B/1bp1q3/nQqrpBr1/2BpNP2/3Rrk2/1P1B2qR/5bn1 w - - 0 1 illegal: No proof kernel
nRb1qNR1/6pR/P1qp1nnQ/r1p1N3/2Rb2R1/k1P1B2b/3r2R1/5K1B w - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 f5 exf5 e5 dxe5 axb4 f4 Ke7 a4 b5 h4 c5 e6 b3 f6+ Ke8 e7 g3 a5 b2 c3 b4 h5 b3 f5 d6 a6 Kd7 e8R Kc6 f7 g2 f6 Bg4 h6 Nd7 h7 Rb8 Re4 Bh3 Nf3 g1N Na3 b1Q Rg4 b2 Ra2 Qe8+ Be3 Nb6 Qc1 Be7 f8R Ne2 f7 Na8 Nh4 Rb5 Bg2+ Qe4 Ng6 b1B Kf1 Bf6 Nc4 Ra5 Nce5+ Kb5 Rc2 Q8c6 Rb8+ Ka4 f8R Nf4 Rfc8 Ba2 Nf8 Be6 Rh2 Bf5 Rf2 Ng6 Rff4 Qe8 Qd2 Ka3 Rd8 Q4c6 Rc4 Be7 Rdc8 Nf6 Rd8 Rg8 h8R Bc8 Rh7 Rh8 Qd4 Ng8 Qf4 Bh4 Qh6 Nf6 Ke2 Bf2 Bh1 Bg1 Rhg2 Bf2 Ne6 Rf8 Kf1 Rf7 Nf8 Rb7 Bd2 Bd4 Be3 Rb2 Ne6 Qed7 Rg8 Rd2 Nf8 Qe8
3rnRR1/1nq1n1r1/K3PBN1/5rp1/5nBB/P6p/B1B1b2p/b1QB2Nk w - - 0 1 illegal: No proof kernel
N5Nr/r1RB2pb/1R2R1Pb/r1R2q2/3Pb1kB/1npR4/Kp3Qq1/R1q5 w - - 0 1 illegal: No possible last move, all moves rejected
B3K1B1/4p1p1/1Nb2N1b/2P2B2/RB1QPbq1/1qn3pB/2nq3r/R3b1Bk w - - 0 1 illegal: No proof kernel forced: wxDB
2R1BB2/Q1prB1K1/6N1/p1q1Pp1B/1kr5/4bbn1/brPN2B1/3RB1bq w - - 0 1 legal: proof: d4 h5 a4 e5 dxe5 b5 g4 hxg4 f4 bxa4 e4 Nc6 e6 Nd4 f5 Ke7 f6+ Kd6 e5+ Kc6 Bg5 Nf5 Bc1 Nfe7 fxe7 Rh7 Kf2 Rh6 Ke1 Rh8 Kf2 Kc5 Ke3 d5 Kf4 f5 Kg5 a5 Kg6 d4 e8B d3 h4 g3 e7 d2 h5 a3 h6 g2 h7 a2 Nf3 g1R+ Bg2 Kb4 Nh4 Nf6 b3 Rg8 h8B Qd5 Qe2 d1B Qa6 Bb7 Bh6 Rb8 Nd2 Bf3 Qa7 Qc5 Rd1 a1Q Kf7 g5 Ng6 Nh5 Bf6 g4 Rh2 Ka3 b4 g3 b5 Kb4 b6 Re1 Bhg7 Re4 Bh4 Ba8 b7 Rc4 Rhh1 Rd8 b8B Rd7 Bgf6 Bh6 Bg7 Bfc6 Bf8 Be3 Bg5 Bf3 Bf6 Nf4 Rh8 Ne2 Bg5 Bae4 Kf6 Bd3 Bf7 Bde4 e8B Bd5 Bh4 Be6 Be7 Rf8 Kg7 Qb1 Bh1 g2 Be1 g1B Bg2 Qa1 Nf4 Bd4 Bh5 Rf6 Bg3 Rh6 Qb7+ Kc3 Rf1 Qb4 Ba7 Bde3 Bc5 Bh2 Bef7 Re4 Bg5 Ba2 Rc8 Rc4 Bf8 Rb6 Ng6 Qc5 Qa7 Rb2 Bge7 Kb4 Be8 Qd1 Bf2 Ng3 Re1 Qe2 Rb1 Qf1 Rd1 Qh1 Be1 Bhg1
2B1K3/P2pn1NQ/R7/2B1rBbn/n1rP1p1n/5prR/kNB3bB/b6B w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 b5 c4 e5 b3 exf4 Kf2 b4 Ke1 Qe7 Nc3 Qc5 Nb1 Qb5 cxb5 a4 Rh3 axb3 Rh5 Bc5 Rh1 Bf8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kh5 Kc4 a4 f5 d4 c5 g4 f3 a5 b2 b6 h6 Kg6 h5 Kf7 b3 e4+ Kb4 b7 c4 g6 c3 e5 c2 g5 Nh6+ Ke8 Ng4 g7 Rg8 a6 Ne3 g6 Nc6 b8B Bb7 e6 Ra7 e7 Ng2 Nd2 b1N Nh3 b2 Ng5 Nh4 Rh3 Nc3 Bh2 b1R Ne6 Na4 Nc4 Kb3 Ba3 Rc1 Bc5 Ba8 Qd2 Rb7 a7 Rb5 Nb2 Ra5 Bcd6 Re5 Qh6 Bb7 Ba6 Ba8 Rb1 Ka2 Bc8 Bb7 Qh7 Ba8 Kf7 Bb7 e8B Be7 Bc5 Bg5 Bf4 Ne7 Bh2 Rf1 Re1 c1B Rd1 Rg1 Rd2 Rh8 g8B Rg3 g7 Bc6 Rd3 Bcd2 Rb3 Bc3 Rb6 Bb7 Ra6 Bc6 Nc4 Ba1 Nb2 Ba8 Qg6 Rh6 Bh7 Bb7 g8B Ba8 Nd8 Bb7 Qg7 Rc6 Ne6 Rc7 Kf8 Be4 Beg6 Ba8 Bb6 Rc4 Ke8 Ng2 Rh4 f4 Bc5 Bd5 Bc2 Be4 Bg1 Bd3 Be4 Be2 Qh7 Bf1 Rh1 h4 Rh2 h3 Ng7 Nh4 Be6 Rg2 Rh1 h2 Bh3 Rg3 Bg2 Rh3 Bf2 Bd3 Bf5 Bf1 Rg1 h1N Bg3 Nf2 Bh1 Ne4 Bh2 Ng3 Rg2 Nh5 Rg3 Bg2 Rg4 Nhg6 Rh4 Rg3 Rh3 Nh4
KrN1N1N1/3kb2b/1q4pp/nNq2qN1/1R2B3/R1p2NP1/Q1PB1qqq/8 w - - 0 1 legal: proof: f4 b5 b4 d5 e4 dxe4 Nh3 a5 Nf2 e5 Bd3 e3 Nh3 axb4 Ng1 e4 Bf1 Ra5 h4 Nd7 h5 Ne5 fxe5 g6 h6 Ra8 Rh4 Ne7 Rh2 Rg8 Rh3 Rg7 hxg7 Ng8 Rh1 Qg5 Ke2 Bb7 Rh4 Kd7 Rh5 Bc5 Ba3 Nf6 Qc1 Rh8 Bb2 Bc8 Ke1 Bf8 Rh1 Ng8 Qd1 Qd8 Bc1 Ke8 Ke2 f5 d4 c5 a4 f4 g3 h6 e6 f3+ Ke1 c4 a5 b3 d5 b4 e7 b2 d6 e2 Kd2 b3 Kc3 e1Q+ Kd4 c3 Kd5 f2 Kc6 e3 a6 e2 a7 Rh7 a8N Be6 Kb7 Qd2 Bh3 e1Q Ra5 f1Q Nf3 Kd7 e8N Be7 Ra3 Qfg2 Bf5 Qa5 Be4 Qef2 Rh4 Qf5 Qg1 Qde3 Bd2 Qec5 Qf1 Qh2 Qc4 Qhg2 Ra5 Bf7 Na3 b1Q Nb5 b2 Ra3 Qbh1 Qa2 b1Q Rg4 Qhh2 Nb6+ Kd8 Nc8 Kd7 Ka8 Be6 Nbd4 Qbb6 Rf4 Bg5 Rh4 Ne7 g8N Nc6 Nb5 Be7 Rf4 Na5 Rg4 Bb3 Rh4 Ke6 d7 Rg7 d8N+ Kd7 Ne6 Bd6 Neg5 Kd8 Bd3 Rb7 Rg4 Be7 Ngf6 Bg8 Rb4 Bh7 Ng8 Kd7 Be4 Rb8#
4B2b/B1Rn4/2Np3B/3P1RBQ/2b1q1r1/1Pp1p3/qN1pr1bK/1kr2B1B w - - 0 1 illegal: No proof kernel
1NbN1R1N/2qBp2N/p3P1R1/P3NQr1/n1bKqB1k/N2p4/3r1pq1/6r1 w - - 1 2 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 g5 c4 g6 Bh6 c3 Bg5 hxg5 Na6 Rh2 b4 Rh1 Nc5 dxc5 bxc3 Kf2 f5 b4 d5 e4 h5 a4 a6 c6 f3 Ke3 f2 g7 Kf7 c7 Kg6 b5 f4+ Kd4 c2 e5 c3 b6 f3 a5 h4 b7 Kh5 b8N h3 g6 h2 e6 Nf6 g8N Qd6 g7 Kh4 Bb5 f1Q Bd7 f2 Qf3 Ne4 Qf5 Qg2 Nf6 Rh5 g8N Rg5 Bf4 c1R Na3 c2 Nh6 Qc6 Nh7 Nc5 Nf7 Na4 Nh8 Rf1 Rb1 c1Q Rb3 Ra7 Rg3 Rb7 Rf3 Rb2 Rg3 Bb7 c8N Rd2+ Ke5 d4 Nd6 d3 Ndf7 Rfd1 Kd4 Bc8 Nd8 Qc7 Rf3 Q1c6 Rg3 Rh5 Rg6 Rg5 Nh3 Ra1 Rb1 h1B Ng1 Qh2 Rb7 Bd5 Rb5 Qg2 Nf3+ Kh5 Rb2 Bc4 Ne5 Kh4 Rb7 Rh1 Ra7 Re1 Ra8 Rg1 Ndf7 Qcf3 Nbc6 Bb7 Rf8 Qe2 Nb8 Bc8 Nd8 Qee4+
2bNb2K/q1B1B3/3pRBQ1/1nr5/3PB2b/1kpB3b/2p1NPpb/1B1nR3 w - - 0 1 illegal: No proof kernel
1B1b1Nb1/NP1Q4/1B2rB1K/1B2p3/1pB1k1pp/Bbp2R2/1P1n2R1/2nqb3 w - - 0 1 illegal: No proof kernel
3N2Bq/B2R2b1/q3qpn1/k1rB2nr/2p2N2/BBK2b2/1RPq1P1b/2qQ1B2 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g3 h5 g4 hxg4 Kd2 g5 a4 b5 h4 d5 e4 Kd7 h5 Kc6 e6 Kb6 h6 c5 e5 d4 h7 c4 e7 g3 e8B b3 e6 g2 e7 d3 Rh5 f6 Ra2 b2 Qf3 g4 Rh2 b4 Be2 g3 Bb5 b3 e8B Nc6 Qg4 Nge7 Nf3 g1B Kc3 g2 Ne5 d2 Nf7 d1Q Bf1 Ka5 Be3 Qe2 Ba7 Nd4 Bed7 Rb8 Be6 Bb7 Rh5 Ra8 Rd5 Ng6 Rd7 Bh2 Bd5 Qb6 Nd8 g1Q Bg8 Rc8 Qh5 Qee6 Qd1 Rc5 Bc6 Bg7 Bd5 Ka6 a5 Qgg4 Bc6 Qee2 Ba4 Be4 Nd2 b1Q Rb2 Qf5 Nf3 Qfe6 Ne1 Qc1 Nd3 Nf3 Nf4 Ng5 Bf7 Re8 h8B Bf3 Bg8 Qb8 Ra2 b2 Bb3 b1Q Rb2 Kb5 a6 Re7 Rb7+ Ka5 Rd7 Bf8 Bg7 Qa1 Bh6 Rh7 Bg7 Rh5 Bh6 Nh7 Bg5 Bg7 Bh6 Bh8 Bf8 Ng5 Bd6 Bg7 Bf8 Rd5 Ba3 Qa8 B7c5 Qc8 a7 Qca6 a8B Qab1 Ba7 Rc5 Bd5 Qa2 Ba4 Qb3+ Kd4 Qb8 Bb3 Qbc8 Kc3 Qa8 Nf7 Qae8 Nd8 Qf8 Bh7 Qh8 Bg8 Qed2+
5n1R/2Q1B1B1/5NKb/q3rp2/1b1NBkb1/n1R1r2p/2BBpP1P/bB2rb2 w - - 0 1 illegal: No proof kernel
2N4b/r4pN1/Q1NR1PBn/pn1p1n1K/kb4Rr/PN5N/2b2B2/rN1q3b w - - 0 1 illegal: No possible last move
2Bq4/1p4pB/5nqq/rBK2qk1/1P2Rb1N/2B1rp1Q/3b2PB/1N1BRbn1 w - - 0 1 illegal: No proof kernel
1BBk1bb1/RBR2p2/6B1/1p5n/3KNQp1/BP1BrPnn/qq3p2/nN3r2 w - - 0 1 illegal: No proof kernel
2R1BR1q/5q2/1rb3k1/R6n/6PB/1nKN3r/1r1N1PpN/q1N1bQR1 w - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 cxd5 f4 Qc2 f3 exf3 Na6 Qd1 Nb8 g4 g5 b4 a5 Ra2 axb4 Ra4 h5 Ra1 hxg4 Bh3 g3 Bf1 g4 fxg4 Bg7 Ra2 Bh6 Ra1 Bf8 d4 Kf7 Kd2 c5 h4 e5 b6 e4 h5 b3 b7 b2 h6 e3+ Kc3 g2 h7 c4 d6 e2 d7 e1Q+ Nd2 b1Q d5 Bd6 Ra5 Qde7 d8N+ Kg7 Nf3 Nd7 b8N Nc5 Nh2 Nf6 Rg1 Bb7 Nbc6 Ra6 Ne5 Nh5 Nd3 Bc6 Ne6+ Kg6 Nd4 Qf7 Nb3 Rb6 Bb2 Qe4 Nbc1 Nb3 Ba3 Bf8 d6 Qee8 d7 Qa1+ Bb2 Bc5 d8R Bd6 Rc8 Bb4+ Kc2 Qeg8 Bf6 c3 Bh4 Qd8 Be2 Qdf6 Qf1 Qd4 Rc7 Rhb8 Rc8 Qh8 Nc5 R8b7 Bb5 Rb8 Kd3 c2 Ba4 Bb7 Be8 Bc6 Nde4 Be1 Nd2 Qhb2 h8R R8b7 Rf8 Qh8 Ke2 Rb8 N5d3 R8b7 Na2 c1R Ke3 Rb1 Nac1 Rd7 Ke2 Re7+ Kd1 Re3 Kc2 Rh3 Nhf3 Qh6 Nh2 Rb2+ Kc3 Qh8+
r2N1Rq1/1Bn3Nn/1P1Q2N1/b4br1/R1b3BR/KN1p3R/2n1P3/2b3k1 w - - 0 1 illegal: No possible last move
2N3K1/2B2n2/3BRn1r/7P/q1RN1P2/p1n3nk/B2Q2NN/1B1nr1qn w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 b4 a5 Bd3 e6 Qf3 a4 Bf1 Bc5 Qd1 Bb6 Na3 Ke7 Nb1 Ba5 bxa5 Kf8 a6 Ke8 a7 Ba6 bxa6 Qe7 Nh3 Qd6 Ng1 Qd8 Ke2 Kf7 Ke3 Kg6 Kd4 Kh5 Ke5 Kh4 d4 g5 f4 c5 d6 c4 d5 g3 h3 c3 d7 e3 d6 g4 Ra2 a3 Re2 g2 Bb2 c2 Nd2 c1N Nc4 g3 Qd2 Qe8 d8B+ Nf6 d7 Na2 Bc7 Rh6 d8N Nc3 Nc6 Nbd7+ Kd6 e5 Nd4 Rc8 a8N e4 a7 Ne5 Nab6 Qa4 Ke6 Nf7 a8B Rf8 Re1 e2 Nc8 e3 Be4 Nd1 Bb1 Re8+ Ne7 Nc3 Rc1 e1N Ngf3+ Kh5 h4 Kg4 h5 g1N Rc2 g2 Nh2+ Kh3 Ba1 e2 Ne3 Nd1 Rc4 Nd3 Bc3 e1N Bb4 Nef3 Bbd6 N3f2 Bfd3 Ne2 Ba2 g1Q Ng2 Nec3 Bdb1 Rf8 Nc8 N3g5+ Ke7 Nge4 Ke6 Rd8 Ke7 Rd7+ Kf8 Re7 Kg7 Ng3 Kf8 Qe1 Rf1 Qe3 Re1 Nfh1 Kg7 Qg1 Re6 Nfe4 Rg6 Re5 Re6 Nf6 Kf8 Re1 Kg7 Nfe4 Kg8 Nf6+
Rb2B2K/1q2NB2/2B5/rB1rb3/1n1r1q1N/b1PnN3/N1P1QR1r/1k1r4 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 Bg2 e5 fxe5 c5 Bh3 c4 Bf1 c3 dxc3 Qe7 Kd2 Qg5+ Ke1 Qd8 Kd2 f4 Ke1 h6 Be3 b6 Bf2 Bb7 Bh4 Be4 Bg5 Bf5 gxf5 hxg5 Kd2 d5 Kd3 Kd7 Kd4 Kc6 a4 b5 e4 f3 h4 b3 h5 g4 a5 g5 h6 f2 a6 g3 a7 b2 e6 g4 Ke5 g2 f6 g3 f7 d4 h7 d3 e7 b4 e8B+ Nd7+ Ke6 Kb5 e5 b3 Qd2 Qc8 Rh5 Qb7 Ra4 Ne7 Rh3 Nd5 Ne2 g1B Rh2 g2 Qe1 d2 Ra1 Rd8 Ra2 d1R Na3+ Ka4 Nc1 Rd4 Bd3 b1Q Qe2 f1R Bg6 Bc5 f8N b2 Bgf7 Rf5 Ng6 Bd6 Ne7 Bb8 Ra1 Nb4 Ra2 Bf2 Ra1 Bg3 Nc4+ Kb5 Ra4 Qa1 Ra6 b1R Na2 Rbd1 Ra4 Qc1 a8B Qa7 Be4 Qb7 Ra8 Qg5 Bd5 Bf4 Be4 Bc1 Bf3 g1B Rf2 Bh2 Bg2 Ba7 Be4 Ka4 Ne3 Ka3 Bh1 Kb2 Bf3 Rf8 h8N Bb8 Nhg6 Rh8 Bd5 Rh3 Nh4 Kb1 Be4 Ba3 Bd3 Nb6 Bc6 Na4 Bc4 Qg3 Ba6 Rh5 Kf6 Nc5 Bd3 Qf3+ Kg7 Bg3 Ba6 Rh2 Bd3 Rf5 Ba6 R8d7 Kh8 Ncd3 Bac4 R7d5 Ba6 Ra5 Bab5 Rh3 e6 Bh2 Nc8 Rfd5 e7 Qg4 e8B Bhe5+ Kh7 Qg3 Ne7 Qf4 Kg8 Rh2 Kh7 Bec7 Kh8 Be5+
3BrN2/3RBbN1/b2N1N1k/P3b1b1/q3qQ1b/2P3K1/R2n4/nq2BB1r w - - 0 1 illegal: No possible last move
bn3N1R/1Nk1r1n1/P1N1R1qK/2n1n3/P2Q1nR1/3Bb3/b3rq2/1R2BN2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 d5 bxa5 c6 h4 gxh4 cxd5 c5 d4 cxd4 Kd2 Kd7 a4 e5 f4 h5 g4 b5 d6 e4 a6 b4 g5 b3 g6 e3+ Kd3 e2 Ke4 e1N g7 h3 f6 b2 Kf5 h4 Kg6 h2 f7 h3 f5 d3 f6 d2 Qb3 d1N Na3 b1Q+ Bd3 Nh6 g8N Ne3 Qd1 Neg4 Be3 Ra7 Bd2 Ng2 Nc4 Nf5 Na5 Qdb6 Ne2 Qf2 Nb7 Ng7 Re1 h1B Ng3 h2 Re6 Nf4+ Kg5 Rh3 Nf1 Ne5 Be1 Re3 Kh6 Re2 Ne7 Bc6 Qd2 h1N Qb2 Be4 Nc6 Ng3 Qd4 Be7 f8R Bf3 f7 Ne4 Qb6 Nc5 Rh8 Bd8 Qb2 Bb6 Qd4 Qc2 Rc1 Bd5 Rb1 Ba2 Nba5 Bb7 f8N+ Kc8 d7+ Kc7 d8R Ba8 Nb7 Ne4 Qc3 Be3 Qd4 Nc5 Rde8 Qc4 Rg6 Qg8 Rg4 Qf7 Re6 Qf6+ Kh7 Qg6+ Kg8 Qe8 Kh7 Kc8 Nba5 Re7 Nb7 Kc7 Kh6 Qg6+
4K1bq/1P5R/2n1r1N1/k1rQr3/b2N1q1r/3Bn2B/bBPNRB1b/7N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 h5 Ke4 e5 Kd5 d3 b4 h4 g4 d2 f4 e4 b6 a4 b5 a3 f6 h3 f5 h2 b7 a2 g6 e3 g5 e2 b6 e1R g7 Nh6 g8B Bd6 g6 Ra5+ Bb5 Ng4 g7 Rh4 Ne2 Qc7 f7+ Kd8 f8B Nc6 b8N Be5 b7 Ne3+ Kc5 d5 f6 d4 f7 d3 Ng3 Be6 Bb2 Bd7 Qe2 d1B Nd2 Be8 Qf3 Be2 Qd5+ Bd7 Rb1 a1Q Bd6 Beg4 f8N Bge6 Ng6 Bf4 Bh7 Bg8 Bde5 Re2 Bed4 Qe5 Rbf1 Kc7 Rf2 Re1 Re2 Qc1 Rf1 h1B Rf3 Bg2 Nh1 Bh2 Rf7 Qa1 Re7 Qf4 Qe6 Bd5 Rf7 Nf1 Bf2 Ba2 Re7 Ne3 Rf7 Ne7 Nc6 Be8 Nd4 Bc6 Ne4 d2 Qd5 d1R Nd2 Bd7 Qe6 Nc6 Qd5 Ra8 Bd3 Re8 Bf5 Re5 Bh3 Rg1 Kb5 Rgg5 Kc5 Kb8 Kd6 Ka7 Kc7 Ka6 Qe6 Ka5 Kd6 Nb4 Ke7 Ba4 Kf8 Nc6 Ke8 Rc5 Rd7 Rgd5 Rc7 Rd6 Qd5 Rg1 Re7 Rg5 Rd7 Be6 g8Q Rf5 Qf7 Re5 Qf5 Bg8+ Qfe6 Ng4 Nh8 Ne3 Bd3 Qg1 Rh7 Qg7 Ng6 Qgh6 Rf7 Qh8 Rh7 Rdxe6+
5n2/5N1r/1qNQ3R/b1P1bRbR/2bN1P1N/B3q1k1/1n3R1q/K1bnB3 w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 c5 a4 cxd4 f4 h5 e4 b5 axb5 Rh7 e5 Ra6 Bh3 Rh8 Bg4 Rf6 exf6 hxg4 Kd2 Kf7 b4 g5 h4 d5 c4 e5 Kc2 a4 Kb2 a3+ Ka2 g3 c5 g4 h5 g2 h6 d3 b6 d4 b7 e4 b5 e3 h7 g3 b6 e2 Nd2 e1B Qe2 Ne7 Qe5 Nbc6 b8R Ng6 b7 Be6+ Kb1 a2+ Kb2 Be7 Rb1 a1B+ Ka3 Na5 Rb2 Qb6 Ngf3 g1Q Nb3 d2 Ka2 d1Q Qd6 g2 Rh5 d3 Nh4 Qh2 Rf2 d2 Ba3 Be5 Rd8 Qe2 b8N d1N+ Kb1 Bd4 Nc6 Nc4 Re8 Ncb2 Ka1 Bd2 Rh6 B4e3 Nbd4 Ba5 Rg8 Bc1 Rg7+ Kf8 f7 Qe3 Rh5 Bc4 Rh6 Ne5 Rg5 Nd7 Rgh5 Kg7 f8N Bg5 f6+ Kf7 Nfg6 Rc8 h8B Rc7 Ndf5 Rb7 Qd3 Ke6 f7 Ra7 f8R Rb7 Rf7 Nf8 Bc3 Ra7 Qd8 Rc7 Qb8 Kd5 Nh8 Ke4 Rff6 Rh7 Be1 g1B Qd6 Qd2 Rf3 Bd4 Nf7 Qe3 Rf2 Be5 Nfd4 Qf3 Rf5 Ke3 Rc2 Qe4 Bd2+ Kf2 Bc3+ Kg3 Rf2 Qd3 Be1 Qe3
1q1R2rq/br1R2B1/q4b2/qq1P4/PqBk2BK/3N1Q1R/Rn1r4/1BN5 w - - 0 1 illegal: No possible last move
nn1K4/1n4BP/1R2R3/N1k3n1/q1qNR3/R2P1r1B/1Qn3b1/B2nBqr1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 g3 h3 Ra4 h2 Ra6 Nf6 Ra1 Ng8 Nh3 h5 Ng1 h4 Qc2 h3 Qb3 Be7 Qd1 Bh4 gxh4 Kd7 Ra5 Ke7 Ra1 Ke8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 b4 a5 b6 a4 d3 c4 b7 f5+ Kd4 a3 e4 c3 h5 c2 b5 f3 b6 a2 h6 f2 h7 f4 Qd2 f3 Ne2 Nf6 Na3 Rg8 Bb2 c1Q Qc2 Nfd7 e5+ Ke7 e6 Kd6 e7 Qe8 Bc3 Rg1 Qb2 Ra6 Ke4 Kc5 Bg7 Qc4+ Kf5 Ra4 Re1 a1N Ke6 Nc2 Nd4 Ra8 Bg2 f1N Re4 Nd2 Bf1 f2 Bg2 Qa6 d6 f1Q Nc4 Nf3 Na5 Qb5 Rg4 Qa4 Re4 Qh8 e8R Ng5+ Ke7 Qg8 Kd8 Qgc4 Nac6 Ra5 R8e6 Rb5 Na5 Rb4 Qa1 Rb1 Qb2 Re1 Bf3 Re3 Bg4 Rf3 Bf5 Rg4 Rg1 h1N Rg2 h2 Rd2 Na6 b8B Nc7 b7 Rg1 Bh3 Nf2 Rd1 h1N Ra1 Ng3 Ra3 Na8 Bc7 Nab6 b8R Na8 Rb6 Nb8 d7 Nf5 Bg3 Nd1 Be1 Nd6 Ke7 Qcb5 d8B Bb7 Bc7 Qbc4 Kd8 Ne8 Bce5 Nd6 Re2 Re3 Bef6 Bg2 Be5 Rg3 Re4 Rf3 Qb3 Rf5 Nf3 Rf6 Ba1 Rf5 Nd4 Rf3 Qb2 Nb7+
rk1b1bR1/3K1B2/B3N1qN/1b2P1Qq/2bR1BPn/5Nq1/1B2qb2/n6N w - - 0 1 illegal: No possible last move, all moves rejected
NRKR2n1/1B2N3/1Rnb4/P1rp1q1N/Bn2b2P/3qk1r1/Q7/R2r2Nq w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 f6 h6 g4 Nc6 g5 Ra4 f5 Ra8 fxg7 Nb8 g6 Ra4 Bf4 Ra8 Bg5 hxg5 Kd2 e5 Ke3 Ke7 Ke4 Kf6 Kd5 b5 h4 b3 c4 b4 a4 b2 a5 e4 c6 b3 c5 g4 c7 d6 c6 e3 Bb5 e2 Ba4 e1Q Nd2 b1Q Nc4 b2 Qe2 g3 Nb6 Bb7 c8N g2 Ne7 Ra7 Na8 Rh5 Rh3 Rg5 Rb3 Rg3 Rb6 Qc2 Qc4 b1N Qb3 Na3 Qa2 Bc8 c7 Nc6 Qb3 Ba6 c8B Rc7 Bb7 Bd3 Qa2 Qcf2 Qb3 Nc2 Qa2 Nh6 g8R Be4+ Kc4 Ke5 Kb5 Kd4 Ka6 Kd3 g7 Ke3 f6 Qf5 f7 Qdd7 Rh8 d5 g8N N2b4+ Kb5 Qg6 Nf6 Qdf5 Nh5 Ng8 Kc5 Qh7 Kd6 Qd1 Nf3 Qh1 Ng1 Bh6 f8R Bf4+ Kc5 Qhg6 Rb8 Bd6+ Kb5 Nc2 Ka6 Qh7 Nf3 g1R Rd8 Rd1 Ng1 N6b4+ Ka7 Nd4 Kb8 Rc5+ Nc7 Qf1 Kc8 Ndc6 Na8 Qd3 Kd7 Qb5 Rb8 Qd3 Kc8 Nh6 Rf8 Ng8 Rd8 Qf5+
rr2rqr1/Q4n2/2bR2N1/Np1R1q1R/N2b4/B3bB1P/P5NR/1k1K2r1 w - - 0 1 illegal: No possible last move, all moves rejected
Qr3rRB/5R1n/4n3/n3RR2/2B2b1p/2q2qqP/2kBP1r1/1N1NB1qK w - - 0 1 legal: proof: d4 e5 d5 d6 Kd2 Bg4 Ke1 Be6 dxe6 d5 c4 d4 Qc2 d3 Qb3 d2+ Kd1 Qh4 Kc2 d1N Kd2 Qf6 Ke1 Qd8 f4 exf4 a4 f5 Nf3 g5 Qb4 b5 axb5 g4 Na3 Ne3 Ng1 f3 Qb3 f4 Nb1 Nd5 cxd5 g3 Kd1 Ba3 Be3 Bf8 Bf2 gxf2 Ra5 Ke7 g4 Kf6 e7 Ke5 e8R+ Kd4 g5 h5 g6 c5 g7 c4 b6 h4 b7 c3 d6 Nd7 b8B Ngf6 Qg8 Qc7 b4 Nc5 d7 Nh7 d8B Bd6 b5 c2+ Kd2 c1N b6 a6 Bg2 f1Q b7 f2 Bg5 f3 Nh3 Be5 Qa2 Rf8 g8R Bg3 Rb5 a5 Re7 a4 Rf7 a3 Qa1+ Kc4 Ke3 Qd1 Rf1 a2 Ba7 Qcd6 b8B Ne6 Bd4 Nb3 Bh8 Be5 Bc7 Rab8 Ba5 Q1d5 Be1 Qa3 Rg1 f1Q Nf2 Bc7 Nd1 f2 h3 Bg3 Qe5 a1Q Qe4+ Qad4+ Kf3 Na5+ Be3 Qad6 Rc5+ Kb3 B3d2 Q5c4 Qd5 Kc2 Qa8 Q6e5 Rg5 Qg7 Rce5 Bf4 Rgf5 Qcc3+ Re3 Qdd3 Bh1 Qgd4 Rgg5 Qg1 Rg8 Qg6 Bg2 Qdc5 Bh1 Qh5+ Kg2 f1R Ree5 Rf2+ Kg1 Qg3+ Bg2 Qhg4 Kh1 Qa7 Bc6 Rg2 Bb5 Q4f3 Bc4 Qg1#
q2rNRr1/1bQN1r2/p3b2R/3B2b1/NnBR1PPK/3b4/NR1r4/2b1k3 w - - 0 1 illegal: No possible last move, all moves rejected
1b6/P2b2Nb/Q2bR1NN/1q1k3B/2r2n1K/2rBRpr1/2r1Pq1N/2B4B w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 a5 f4 d5 b4 axb4 c3 e5 c4 exf4 cxd5 c4 Bb2 Nd7 Bc1 Nc5 dxc5 Ra7 Bd2 Ra5 Bc1 Ra8 Kf2 Kd7 g4 f5 a4 b5 d6 Kc6 d7 h5 g6 f3 Kg3 f2 a5 h4+ Kh3 f4 g7 f3 g5 c3 a6 c2 g6 b3 a7 b2 Ra5 b4 Bg2 f1Q Ra3 b3 Qd3 Qf2 Qa6+ Kd5 c6 Qdb6 c7 Qb5 Nd2 b1B Nf1 b2 Nh2 Nf6 g8N Bd6 g7 Nh5 Nh6 Rg8 Re3 Nf4+ Kg4 Rb8 Nh3 Rb6 Rg1 Rc6 Bh1 Rc3 Kg5 Rc4 d8N Bd7 Ne6 Rc8 g8B Rc3 Bd2 c1B Bf7 Bh7 Bh5 b1R Ng7 Rb2 Rg2 Rg8 c8B Rbc2 Rg4 Bca3 Bc1 Bb8 Rg1 Bad6 Bb7+ Kc5 Be4 Rc8 Bf5 Kd5 Bd3 R8c4 Rg4 Ng6 Rge4 Nf4 Ng1 h3 Re6 Qf1 Kh4 Qg2 N2g4 h2 Nh3 Qf1 Bg2 h1R Nh2 Rg1 Bh1 Rg3 Qc6+ Kd4 Qa6 Nd5 Nf4 Qf2 Ng6 Nf4 Ng8 Kc5 Nh6 Kd5
6nr/R1Nk3r/3rRb1N/2bQn3/1pP1N1B1/BPBN2B1/3K2n1/1nn1r3 w - - 0 1 legal: proof: g4 a5 e4 f5 exf5 c5 d4 cxd4 f6 a4 b3 a3 Qd2 Na6 Qc3 Nb8 Qb2 axb2 f4 g5 f5 Qc7 f7+ Kd8 f6 b6 h3 Qf4 Ke2 Qf5 Kd2 Bb7 Ke1 Bf3 gxf5 g4 Bb5 g3 Bf1 Bg4 hxg4 Ra4 Bd3 Ra3 Bf1 Ra8 c4 e5 a4 h5 g5 d5 g6 b5 g7 h4 a5 h3 a6 h2 a7 g2 Ke2 e4 Bd2 e3 Nc3 Rh7 Ne4 Nd7 Nh3 g1B Nf4 Bc5 f8N Ne5 N8e6+ Kd7 f7 d3+ Kd1 d4 f8B Rc8 Bc3 e2+ Kd2 e1N a8Q Ng2 f6 Rc6 f7 Rd6 Qd5 Rh8 Kd1 d2 Nd3 Be3 Rg1 h1R Nc7 Bg5 Ra7 Bf6 Be2 R1h7 Kc2 d1N Kd2 Nf2 Re1 Nh1 Bf3 Ng3 Be7 Ne2 f8B Nh6 g8N Nc1 Nf4 d3 Bd1 Bg7 Bh4 Bf6 Bg3 Bg1 Ne7 Ng8 Nf5 Bb6 Bg4 Bc5 Kd1 d2 Nd3 Bb6 Kc2 d1R Re2 Rf1 Kd2 Bc5 Nh6+ Kd8 Bb4 Re1 Ba3 b4 Bg7 Nd7 Ng5 Kc8 Re6 Ne5 Ne4 Bd8 Bf6 Kd7 Bg5 Bf6 Be3 Ne2 Bd4 Nc1 Bc3 b1N+
q4N2/1rb3rB/B2Pp3/1B2R1PN/4brR1/3b2Nb/2NbKBk1/2Q3rr w - - 0 1 illegal: No possible last move, all moves rejected
R1N4R/N3q2P/2rp3B/1QR1rr1R/qqqr3n/3k1P1N/6r1/K1nB1N2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 g5 cxd4 h3 Bb7 Qd3 Bd5 Qe2 Be6 Qc4 Bg4 Qe2 g6 Qf3 Bh6 gxh6 g5 Qd1 Bf3 Qd2 g4 Qd3 g3 Qd1 Bg4 hxg4 Qc8 Nf3 Qc7 Ng1 Qd8 Kd2 Kf7 b4 Ke6 c4 Ke5 Kc2 a5 Kb2 d3 b6 Kd4 f3 e5 b5 e3 g5 e4 h7 g2 c5 e2 c6 e1Q g6 e3 c7 d2 c8R h4 b7 e2 g7 h3 b6 h2 Ka2 d6 Rc2 a4 Rc3 a3 Rc2 Nh6 g8N Nf5 Nc3 Ra5 Ne7 Nc6 b8R Ne5 b7 Nd3 Ned5 Qe7 Nb6 Rc8 Ne4 Q1h4 Kb1 e1R Qe2 d1R Nd2 Rd5 Rc5 a2+ Kc2 Rc7 Rh8 Qhe4 b8N Rc8 Nh3 g1R Nf2 Rc7 Nc8 Q4e6 Rb1 a1Q Kb3 Qc3+ Ka2 Qb4 Rb2 Q6d7 Ka1 Qde8 Ra2 Rg3 Rg1 h1Q Ra8 Qhh4 Rh1 Rg2 Rh2 Qf4 Rh5 Nh4 Nh3 Qff7 Rb5 Kc3 Nc6 Rf5 N6a7 Kc2 Qe5 Qfc4 Be2 Q8d7 Rd5 Qdb5 Nf1 Rc6 Rc5 Qa6+ Ra5 Rd2 Qc5 Kc3 Bd1 Ree5 Qb6 Qab5 Ba3 Q5a4 Rc5 Nc1 Qa6 Na2 Qb5 Rd4 Bc1 Kd3 Bh6 Nc1+
knN2rB1/n1q3BP/2Np1qBK/1rn5/2P3q1/1R1qrBN1/N1R1n3/Q7 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 h3 h5 Ra2 Bb7 Ra4 Bf3 Bg2 Bg4 Bf1 g6 Ra6 Bh6 gxh6 g5 Ra4 Bf5 Ra6 g4 Ra5 g3 Ra1 Bg4 hxg4 Qa5+ Bd2 Qb6 Bc1 Qd8 Kd2 f5 b4 a5 c4 g2 e4 d3 g5 f3 Ke3 d6 Kf4 Kd7 b6 Kc6 g6 Kb7 e5 f2 e6 a4 e7 a3 Kg5 a2 h7 h4 g7 d2 b5 f4 Ne2 g1N Rh2 f3 Bg2 f1Q Ng3 h3 Bb2 Ra3 Nc3 Ne2 Rb1 a1N Na2 Qc7 e8B Ka8 Bg6 Ne7 g8B Nc8 Bg7 Na7 Kh6 Re3 Rb3 Qg1 Qe1 d1Q Qa5 Qd5 Qa6 f2 Bf3 f1Q Qa3 Nd4 Rc2 h2 Qc1 Ne2 Qd1 Nac6 Qc1 Qe6 Qb2 Qf6 b7+ Ka7 Qc1 Qd1 Qb1 Qd3 b6+ Ka6 Rbc3 h1R+ Nh5 Nb3 Bf7 Na7 Qa1 Nd7 b8N+ Ka5 b7 Rf8 Bg8 Nbc5 Ra3+ Kb6 Rac3 Ne5 Nd7+ Ka6 Nb6 Qg4 Nc8 Nec6 b8N+ Kb7 Ra3 Rb1 Ng3 Rb5 Rb3 Ka8 Ne4 Nb4 Nc6 Nba6 Ng3 Nb8
N2nN3/2bb3p/r1RP3R/4n1r1/k2PqN2/r2np1B1/1B1NbR2/QR5K w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 h4 gxh4 b4 a6 b6 Be6 b7 Bf7 b5 Be6 b6 Bc8 Bb5+ axb5 Kf1 Kd7 d4 e5 g4 c5 Kg2 b4 f4 b3 f6 c4 f7 b2 f5 c3 f6 c2 g5 e4 g6 e3 g7 Ra3 Nh3 Bd6 f8R Ne7 g8N Nbc6 b8B Ng6 f7 Qe8 b7 Nd8 Nd2 b1R Bb2 c1N Nf4 Bc7 Nf6+ Kd6 Kh2 Qe4 Ne8+ Kd7 Rg8 h3 f8R Ne5 Rg6 Rg8 Rc6 Ncd3 Rff6 Rc1 Rb1 Rg5 Rf1 Rc4 Rh6 Rca4 Rf2 Ra6 Qa4 Rb3 Qa1 Rc3 Rf3 Rca3 Kh1 h2 Ba7 Ke7 b8N Be6 Nd7 Bg4 Kg2 h1B+ Kg1 Bg2 Bb8 Bf1 Nb6 Be2 Na8 Kd7 Kh1 Kc8 Ba7 Kb7 Bb6 Bd7 d6 Ndf7 Ba5 Nd8 Bac3 Rb6 Bb4 Ka6 B4c3 Kb5 Bb4 Rg2 Rf2 Ka4 Nc4 Qd5 Rff1 Ne6 Be1 Qe4 Nd2 Rg5+ Rf3 Ra6 Bg3 Qg6 Rff1 Nd8 Rf2 Qe4+
3R1bn1/B3rp1n/2N1Rqk1/rb1P1q2/2B2R1P/1KN2RB1/n1p5/5BQq w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 d4 c5 Kd2 g5 Kc2 g4 h4 g3 e4 f3 e5 c4 e6 c3 e7 g2 d6 f2 b6 Nh6 d5 Bb7 Ra4 Na6 Ne2 g1Q Nd4 Nc7 Be3 Ra5 Nc6 Ng8 h6 Ne6 h7 Ng5 Rh3 Qh1 Kb3 c2 Nc3 Ba6 b7 Bb5 b8B Qb6 Bc4 f1Q Rf3 Qfh3 Qa1 Qf5 Qg1 Qd4 Ba7 Qdf6 Bf2 Kd7 Bg3 Ke8 Kb2 b3 Ka3 b2 Kb3 b1N Bf1 Nh6 Raf4 Rg8 h8R Nh7 Bc4 Rg5 Rg8 Rg4 Rg6 Ng8 Nd4 Kd7 e8B+ Kd8 d7 Ke7 d8R Rg5 Nce2 Nc3 Bc6 Na2 Nc3 Rg4 Bb7 Rg5 Ba6 Rg4 Bf2 Rg2 Bg3 Re2 Rh6 Q6g6 Nc6+ Kf6 Nd1 Re7 Nc3 Kg7 Bf1 Qgg5 Re6 Qgf6 Nd4 Bd7 Bac4 Bb5 Nc6 Kg6
r2R4/1NN2pPn/1RN4b/pBqR4/b4k2/Kr1B1PrQ/N3n2R/6bq w - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 g5 a4 c5 axb5 Qc7 bxc5 Qd8 h4 gxh4 c4 d6 c6 Bh6 c7 Ke7 c5 Bg7 c6 Ke8 Be3 Bf8 Bc5 dxc5 e4 Ke7 g4 Ke6 f3 a5 b6 h5 b7 h3 g5 c4 g6 c3 g7 h2 Ne2 c2 Nd4+ Ke7 Kd2 c1B+ Kc3 h4 Kb3 h3 e6 Kd6 e7 Ke5 e8B Bf4 Nc3 Rh5 Na2 Qe7 Bd3 Rh7 Qf1 Bg5 Rd1 Bd7 c8R Kf4 c7 Nf6 e5 Qc5 e6 Rh4 e7 Nh7 Rd8 Bh6 c8N Nc6 b8R Rg4 Rb6 Rg3 Rg1 h1Q Nd6 h2 Nb7 Bc8 Qh3 Bd7 Nb5 Nd4+ Ka4 Qg5 Ka3 Ne2 Nd4 Ba4 Beb5 Qd5 Nc6 Qd6+ Ncb4 Qc5 e8N Bd6 Nc7 Be5 Rg2 Bd4 Ba6 Bg1 Rf2 Qg2 Bdb5 h1R R1d5 Rh2 Bd3 Qh1 Bab5 Rhg2 Kb2 Rg4 Nc6 R2g3 Rg2 Ke3 Rf2 Rb4+ Ka3 Kf4 Rh2 Rb3+
B3QR1K/1rb2N1R/rr1rn1p1/1PRq1R2/b2BB2N/1P2p3/2B5/2k3nb w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Qd6 fxg5 Bh3 g6 Qd8 g7 Bc8 g4 Qd7 g5 Qd6 g6 Qd8 Qc2 Nf6 g8B Bg4 g7 Bxe2 Qg6 hxg6 Kf2 Kd7 Ke3 Kd6 Kd4 a5 h4 e5+ Kc3 Kc5 d3 a4 h5 e4 d6 e3 h6 a3 d7 a2 h7 Nc6 Na3 Rb8 Rh5+ Ne5 Nc4 Rb6 Rf5 Bd1 Nd6 Nh5 Bg2 Nf4 Be4 Ba4 Nf3 Ne6 Nh4 f6 Nf7 Bd6 Rb1 a1R Bd2 c6 Rc1 Bc7 Be1 Qa8 d8Q Qb7 Qe8 Ra2 Rg5 f5 b3 f4 Rf5 f3 Rc2 f2 Rc1 Ra6 d4+ Kb6 d5 Kc5 d6 f1B d7 Rd2 d8R Bg2 Bc2 Bh1 Bg3 Rd6 Bf4 Qa8 Bg5 Kd5 Bf6 c5 Rc8 c4 Rcf1 Kc5 R1f2 Kb6 Rf1 Nf3 Bd4+ Ka5 Rf2 Bb8 Rcc5 Ng1 Nh6 Qf3 Bd1 Qf4 Rc7 Rdb6 Rc2 Bf3 Bf6 Nd8 Bd5 Rf8 h8R Ne6 Ba8 Rf7 Rf8 Bh1 Ra7 Qf3 g8B Ng5 Kd4 Kb4 Rc7 Ka3 Ke5 c3 Rc1 Rh7 Bgd5 Kb2 Bh8 Ne6 Kf6 c2 Bdc6 Qf1 Be4 Qc4 Rg7 Qc5 Kf7 Be5 Kg8 Qd6 Rb7 Rd7 Bf6 Qd5 Kh8 Rd8 Rh7 Rb7 Ra1 c1R Nf7 Rcc6 Rc1 Rcb6 Rc5 Rdd7 Bdc2 Kc1 Bg7 Bc7 Bd4 Rdd6
1Nn2n1k/BR5r/bP2b3/n3P1pB/NR1bB3/p6N/N5r1/1QbqBK2 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 c4 d5 cxd5 e5 a4 exf4 g4 hxg4 axb5 Qf6 Ra4 Qg5 Ra1 Qd8 e4 a5 h4 f5 d4 Kf7 h5 g5 h6 f3 h7 Kg7 d6 a4 c6 f4 c7 a3 d5 g3 d7 g2 d6 Be7 Be3 Bf6 Ba7 Bb7 c8B Be7 b6 Bd5 Be2 Bf6 Bb7 Ne7 Nh3 g1B Nc3 f2+ Kf1 Bd4 Rb1 Nc8 Bh5 Be6 Rb4 Re8 Na2 Kh8 Qb1 Re7 Ke2 f1N Ke1 f3 Bd5 Qg8 d8N Nd2 d7 Bge3 Nb7 Nb3 d8N f2+ Kf1 Bc1 Nc6 Na5 Nc5 Nd7 Nb8 Qd8 Na4 Nf8 Bc6 Rc7 Bb7 Rc2 Rh2 Kg7 h8B+ Kg8 Be5 Qd6 Bf4 Kh8 e5 Qd5 Bg3 Qf3 Be4 Qd1+ Kg2 Rd2 Bf4 Rb2 Bd2 Rc2 Be1 f1B+ Kh1 Rf2 Kg1 Bb5 Rh1 Re2+ Kf1 Ba6 Nc6 Rb8 Rh2 Rb7 Nb8 Rc7 Rf2 Rg7 Rf7 Rh7 Rb7 Rg2+
r4q2/r1NK1Qn1/3N2P1/p4Rnk/5BR1/P1RBn1bb/2n1B2p/1BR2q2 w - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 c5 c4 e5 cxd5 exf4 b4 b6 bxc5 bxc5 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 Kf7 e4 Kg6 d4 h4 g4 f3 d6 h3 a3 f2 d5 c4 d7 h2 Ke6 c3 e5 f4 d6 f3 Qb3 c2 Nc3 Rh6 Nb5 Na6 Nh3 Bb7 Rg1 Rh5 Bf4 c1Q Bd3+ Be4 Nc7 f1N Nf2 Qe3 Rc1 Qb8 d8R Qba7 d7 Rh8 Rc8 Qec5 d8R Ne7 Kd7 Ne3 e6 N7f5 e7 Ng7 Rc3 Nc2 e8B+ Kh7 Qb7 Bd6 Bh5 Rg8 Rf8 Bf5+ Ne6 Qc4 Ne4 f2 Qc7 Be5 Nd6 f1N Rf7 Qf2 g6+ Kh8 g5 Nfe3 Rc1 Ra7 Bhe2 Bh3 Rf5 Qf3 Qb7 Nc7 Rg1 Qb4 Rg4 Qf1 Qd5 Nh5 g7+ Kh7 Qb7 Kg6 Qf3 Re8 g8B Ng7 Bh7+ Kh5 Qf2 Nb5+ Nc7 Nbd4 Bg8 Nde6 g6+ Ng5 Ba2 Rf8 Bb1 Rg8 Nf7 Qf8 Nd6 Nb4 Rc1 Nbc2 Qf3 Bc3 Qd5 Be1 Qf7 Bf2 Rb8 Bg3 Rb3 Qb8 Rc3 Qb4 Qa2 Rga8 Qb3 Qb8 Qf7 Qf8
Nkr1Q2K/2R1R3/1rBB1R1q/B1R4P/2p5/nr1P1pN1/5qbn/2r1q2B w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 g3 h3 Ra4 h2 Ra6 Nf6 Ra1 Ng8 Nh3 h5 Ng1 h4 Qc2 h3 Qb3 Be7 Qd1 Bh4 gxh4 Kd7 Ra5 Ke7 Ra1 Ke8 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 h5 a5 d6+ Kb7 d7 a4 e5 c4 d3 a3 b6 a2 e6 Ra5 b5 Qf6 d8B Qh6 e7 Qf6 e8B Rh6 Nc3 Rh7 Bg2 Qh4 Na4 Rh8 Qe2 Qe1 Ba3 Nf6 Bd6 Nc6 Rb1 Qd2 Rf1 a1R Bd7 Na7 Qe8 Rf8 Ne2 Rc1 Ng3 Ra6 Rhg1 Ng4 Bh1 Ka8 Bc6+ Bb7 Re1 Rb1 Re7 Rb3 Rf1 Qc1 Rc7 Kb8 Re1 Ba8 b7 Rb6 Re5 Qe1 Rc5 Qe6 Nc3 Qh6 Nd5 Ra6 Nb6 Rh8 Ke2 Rg8 Kd2 f3+ Kc2 f4 Kd2 Rb4 Kc3 f2 Kd4 f1Q Ke4 Rb3 Kf5 Qg5+ Ke6 Qh6+ Ke7 Qf2 Kf7 Rg7+ Kf8 Re7+ Kg8 Re2 Bhd5 h1Q Be4 Qhe1 Bh1 Qf6 Kh7 h2 Kg8 Qe6+ Kh8 Qh6+ Kg8 Raa2 Bd7 Reb2 Be5 Qg2 Rd5 Rba3 Rd6 Ra6 Rf6 Rb3 Bd6 R2a3 B6e7 Qb2 Rcc6 R3a5 Bc5 Qed2 Be4 h1R Bce7 Rc1 Bh1 Qe1 Ba3 Qg6+ Kh8 Nh2 Re6 Qbf2 Re7 Nc8 Bc5 Ka7 b8R Qed2 Bd6 Bg2 Na8 f3 Rb6 Qe4 Rc6 Qee1 b6+ Kb7 B8c7 Na7 Bd8 Rab5 Rc5 R5b4 B8c7 Nb5 Bd8 Na3 B8c7 Ra7 Bc6+ Ka6 Bd8 Rc7 b7 Rc8 Ba5 Rb6 b8R Qf4 Rbb7 Qh6+ Rh7 Rcb1 Rc7 Rc1 Bb7+ Ka7 Be4+ Kb8 Bc6 Qg6 Rhe7 Qh6+
4B1N1/1R6/1prrn2q/b3N3/N3Nr2/QB1P2RB/2Pbp1q1/1K1Bb1kb w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 a5 b4 c5 bxa5 Nd7 Bb2 dxe4 Bc3 e3 Bb4 cxb4 Ke2 e4 Ke1 Ne5 fxe5 Qd5 Qf3 Qd4 Qd1 Qd8 h4 Kd7 a4 Kc6 d3 Kd5 e6 Kd4 e7 f5 e8B g5 h6 b3 h5 b2 h7 e2 Kd2 g4 h6 b6 a6 g3 a5 f4 a7 g2 a6 f3 Qc1 f2 Nc3 b1R Nh3 g1B Qa3 Rb4 Kc1 Ke3 Ng5 e1B Na4 Qd6 Bh3 f1Q Ra2 Bh2 Rg1 Kf2 Rg3 e3 Ra1 Rg4 Kb1 Qg2 Ne4+ Kg1 Ra2 Rb8 a8B Nf6 a7 Nd7 Bd5 Bb7 a8B Rc8 Bb3 Nc5 Ra1 Rhg8 h8N R8g6 h7 Rc6 Nf7 Ne6 h8N Rf4 Ne5 Ba5 Nhf7 Bh6 Ra2 Bg5 Nh6 Rgf6 Rf3 Bg3 Ng8 Bge1 Rg3 Qf8 Ra1 Rd6 Ra2 Bc6 Bb7 Qh6 Bc8 Bb7 Bg4 Rg6 Bd1 e2 Bcd7 Rf7 Bc8 Bgd2 Bcd7 Rf4 Bc8 Ng7 Bh3 Ne6 Nf2 Ng5 Bd5 Rde6 Bb3 Bac3 Qe7 Bd5 Qc5 Rc6 Nb2 Rgd6 Ra7 Ba5 Na4 Ne6 Qa3 Be4 Rb7 Bf3 Rgg7 Qg3 Ne4 Bh1 Rg5 Qg2 Rg4 Rc3 Rg3 Rcc6
N3KrR1/3rN3/1ppb3P/2P3RB/Qn3R1B/1bq2Nb1/5b2/RbNk2b1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 b5 f5 gxf5 b6 Qxh5+ Kd7 Qh7 Ke8 a4 Na6 a5 Nc5 a6 Nb7 axb7 a6 Ba3 axb5 Bc1 b4 Ke2 Kf7 Ke3 Kf6 Kf4 g6 b8N c6 d4 e6 c4 b3 h4 b2 d5 e3 c5 e2 h5 e1B d6 Ra5 h6 Qe7 d7 Bb7 d8R Bg7 Na6 Bc8 Ne2 Bf8 Nc7 Ra7 Rg1 Qg7 Rg5 Ne7 Nd2 b1B Na8 Rd7 Nf3 Nd5+ Kg4 Be7 Rg8 e5 Bd2 e4 Nc1 e3 Be2 Bd6 Kh4 Ke7 f6+ Ke6 f7 Nb4 f8R Qc3 Rf4 Ba6 Qg7 Bc4 Qd4 Bb3 Bd1 e2 Qc4+ Nd5 Qa4 Nb4 Be3 Rhh7 Bd4 Rhf7 Bf6 Rf8 Rg2 g5+ Kh5 g4 Bh4 Rf5+ Kg6 Kd5 Rg1 Re5+ Kf6 g3 Rg5 g2 Rg8 Be7+ Kf7 Rf5+ Ke8 Bd6 Nd2 Qh3 Rd4+ Ke6 f4 Qc3 Rc4 Rf6 f5+ Ke5 Rf4 Rff7 f6 Bf2 Bc2 Kd5 Bg6 Ke5 Bh5 Kd5 Rf5+ Kd4 Nf3+ Ke4 Rf4+ Ke3 Rd1 g1B Rd5 Bg3 Rdf5 e1B Rfg5 Rg7 f7 Bef2 f8N Rgf7 Ng6 Rf5 Ne1 Kd2 Nf3+ Kd1 Ne7 Rf8+
B2QRB1n/P1rnRp1b/4b1R1/P5r1/2KNpBB1/5Nrb/7R/r2n1k2 w - - 0 1 illegal: No possible last move
b2bb1kr/K2nR1B1/1NB2r2/5r1p/1RNN4/N3pQBr/1b3P1P/B5n1 w - - 0 1 legal: proof: g4 d5 e4 c5 d4 f5 a4 fxg4 b4 Nf6 dxc5 d4 a5 Qd5 exd5 Ne4 b5 b6 axb6 Nd2 b7 Nd7 b8Q Nxb8 Ke2 Kf7 Kd3 g5 c4 e5 c6 h5 c5 a5 c7 g3 d6 g2 c6 a4 b6 g4 b7 g3 d7 a3 d8B a2 Bb2 Nf3 Kc4 d3 Kb5 d2 Kb6 e4 Na3 e3 Bb5 Bd7 c8N Kg8 c7 Be7 Ne2 g1R Bc6 g2 Bg7 Ra5 Nd6 Be8 c8N Rf5 Ka7 Nd7 b8B Bf6 Rc1 a1B Nb6 Bab2 Nd4 Bh4 Bdc7 Bd8 Ndc4 Rf6 Qe2 d1B Be5 Bc2 Bg3 Be4 Bbe5 Rd1 Rf1 Ng1 Qf3 Rd3 Rcd1 Rb3 Rd3 Rb5 Rc1 Rd5 Rb3 Rc5 Rb4 Bd5 Bb5 Ba8 Bc6 Rd5 Ne2 Rb5 Bc3 Rbf5 Nd4 Nh3 Ra1 g1R Rd1 Rg2 Rd3 Ng1 Rd1 Bc1 Ba1 Bb2 Nb3 Rf4 Bh4 Nb8 Rd7 Rg3 Nd4 Rh3 Bg3 R4f5 Re7 Nd7
2R4n/BrnB1PN1/4p3/4Nb2/P3RRQn/b1r1Bp2/1KbB3b/2R1nk2 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 gxh5 Qd7 Nc3 gxf4 Nb1 f3 Bg2 f4 Bf1 Qf5 exf5 Bh6 Bc4 Bg7 Bf1 Bf8 a4 Kf7 h4 Kf6 d4 c5 Kd2 b5 Kc2 f2 d6 b3+ Kc3 f3 d5 Ke5 f6 Ke4 f7 b4+ Kb2 c4 d7 Ra7 d8B Rb7 h6 Na6 h5 Bf5 h7 e6 h6 Ne7 d6 Ng6 d7 Nc7 Nd2+ Ke3 Ne2 Bd6 Rg1 Bh2 Ng3 Bc2 Be7 Rc8 d8B Nh8 Nh5 Bf5 Bd3 f1N Ng7 Kf2 Rg4 Ne3 Re4 Ng2 Bg5 Nh4 Bdf6 Kg2 Rf4 Kf2 Bd4+ Kg2 Ba7 c3+ Kb1 b2 Nc4 c2+ Ka2 b1B+ Kb2 b3 Bce3 Ra8 Ne5 Rc8 Bb5 c1B+ Kc3 b2 Qd4 Bbd3 Bd7 Kf1 Qb4 N8g6 h8R b1N+ Kb3 Bde4 h7 Bd2 Kb2 Bc2 Rg8 Be1 h8R Na3 Rh7 Nh8 Rc1 Nd5 Rh6 Rc3 Rc8 Nc7 Rh5 Bd1 Bh6 Nc2 Rg5 Bd2 Rgg4 Ne1 Re4 Bc2 Rgf4 Rc5 Qb6 Bb4 Qd6 Rbb5 Qe7 Rc3 Qg5 Rb6 Qg4 Rb7 Bd2 Bg6 Rf6 Bf5 Bhe3 Bg6 Rff4 Bh7 Qg3 Bf5 Qg4 Ba3+
B1b2qBN/1q1P4/BQpP3K/6nR/NNq4b/2q2b1k/1B1R1qp1/3rN3 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 h3 g5 Qb3 b5 Qd1 f4 Bg2 Nc6 Bf1 Nd4 h4 Nf5 gxf5 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bg7 Qa4 Bh6 Qd1 Bf8 Kf2 Kf7 d4 h5 a4 c6 e4 b3 d6 b2 e5 h4 a5 b4 e6+ Kg7 d7 b3 d5 h3 d6 h2 f6+ Kg6 a6 Kf5 e7 Nh6 e8N Be7 f7 Bf6 f8N Qe7 g6 Nf7 a7 Ng5 Nc3 b1Q a8B b2 g7 Qd3 g8B b1Q Ra2 Qb7 Na4 Qc3 Ng6 Qf8 Ba6 Rh4 Qd4 g3+ Kf1 Kg4 Bb2 f2 Kg2 Rh7 Qb6 Re7 Nf3 Re1 Nc7 Rd1 Ne1 Bd8 Kf1 Kh3 Ke2 Bf6 Nd5 Be7 Rg1 h1B Nb4 Be4 Nh8 g2 Nbd3 f3+ Ke3 Bf6 Kf4 f1Q Nb4 Qfc4 Rf1 Bd5+ Kf5 f2 Kg6 Bf3 Rh1+ Kg4 Rh5 f1Q Ba1 Qf2 Rd2 Nh7 Bb2 Bh4 Qa7 Ng5 Qb6 Qff7+ Kh6 Kh3 Qa5 Qe7 Qb6 Qf8+
5qb1/N2Pp1R1/nb3B2/q4B1p/K5bB/B2bRQ1R/6Pb/RbN3kn w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 d5 axb5 g5 Kd2 gxh4 Ke1 d3 f4 h5 Ra3 a5 Kd2 d4 Ke1 Ra6 Ra2 Rd6 Ra1 Rd5 exd5 Rh7 Nd2 Rg7 Nb1 Rg5 fxg5 Bg7 Rh3 Bh6 Rh1 Bf8 Kd2 Kd7 b4 Kd6 c4 Ke5 c5 Ke4 d6 f5 g6 h3 c6 h2 g7 a4 b6 a3 b7 f4 c7 f3 b5 a2 b6 f2 Be2 f1B Qb3 Be6 c8R Na6 b8B Nh6 g8R Ng4 b7 Bg7 d7 Qa5+ Qc3 Be5 Rc4 Nf2 Rg7 Bg8 Na3 Kf4 Bg4 Kg3 Rc5 Bc7 Re5 Bb6 Nb5 Be2 Rb1 a1B Na7 Bb2 Bd6 Ba3 Bc7 Bd6 Ba3 Bf1 Kc1 Be2 Qc6 d2+ Kb2 d1B b8B d3 Ra1 d2 Bf5+ Bg4 Qd5 Be2 Kb3 Bd3 Re6 Bf4 Be5 Bb1 Bf6 d1B+ Bc2 Bf3 Bf5 Be2 Qd1 Bed3 Bbd6 Nh3 Ne2+ Kf2 Nc1 Bg3 Bde5 Bf4 Bh4+ Bg3 Re1 h1Q Re3 Qf1 Qf3+ Kg1 Bd4 Bh2 Bdf6 Qd5+ Ka4 Nf2 Rc6 Nh1 Rc3 Qa8 Qf4 Qf8 Rh3 Qe1 Qf3 Bf1 Re3 Bfd3 Nb3 Qc3 Nc1 Qa5#
3b1bnr/Rrq4R/4p3/Rp2BKP1/P4Q2/kn1p1R2/BN1B3B/N1n2r2 w - - 0 1 legal: proof: d4 f5 e4 c5 b4 cxd4 g4 h5 f3 a5 exf5 axb4 f6 g5 Bh3 b6 Bg2 Ba6 Bf1 Be2 gxh5 g4 Bb2 g3 Bc1 Bc4 Bd3 Be6 Bf1 Bg4 fxg4 Bh6 Bg5 Bg7 Bc1 Bf8 Ke2 d5 Kd3 Kd7 c4 Kc6 h4 Kc5 f7 b3 h6 Kb4 c5 b5 h5 g2 c6 b2 g5 Ra7 c7 Na6 c8R Qd6 h7 Nh6 Qd2+ Ka4 Nh3 g1B Rc7 Bg7 f8R Ng4 h6 Qg3+ Rf3 Rf8 h8B Rb7 h7 Nf6 Nf4 Ng8 Na3 b1N Nc2 Nc3 a3 Bh6 Be5 Ne2 h8B Rd8 Qe3 Bf8 Rh7 Rc8 Ra2 Rcb8 Na1 Nc5+ Kd2 Re8 Nd3 Nb3+ Kc2 Rd8 Bd2 Nec1 Qf4 Be3 Bd6 Rc8 Bhe5 Ra8 Nb4 d3+ Kc3 Bb6 Be2 Nc5 Kd4 Rab8 Rd7 Bd8 Bf1 Qh2 Bh3 Ra8 Be6 N5b3+ Ke3 d4+ Ke4 Rc8 Kf5 Rcb8 Bc3 d2 Nd3 d1R Bd2 Rf1 Bd5 Qh6 Bc7 Qc6 Bcd6 Qc3 Nb2+ Ka5 Bc4 d3 a4 Bb6 Be6 Nc5 Qg3 Kb4 Bef4 Ra7 Nc4 Bh6 Bde5 Nf6 Rc2 Rh8 Nb2 Bd8 Ba2 Ng8 Qg4 Ka3 Bh2 N5b3 Qf4 Qa5 Rc6 Bf8 Ra6 Qb6 Ra5 Qc5 Rd6 Rb7 Rda6 Qc7 Ra7 e6+
1N2K1B1/2N1q2q/1p1q4/1nNQ2B1/R3bpPr/3Bb2n/P1pk2BN/r1R5 w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 a5 f4 d5 b4 axb4 c3 e5 c4 exf4 cxd5 c4 Nd2 Qd6 Nb1 Qc5 dxc5 Ra6 Rh6 Ra4 Rh1 Ra8 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 h4 e4 b3 g4 c3 g6 f3 g7 b6 d6 Kc6 d7 f2 Ke6 c2 Kf7 b2 e5 h3 e6 h2 e7 f4 e8N Nf6 g8B Rh4 Nc7 Nh7 Ke8 Bb7 Qd2 Ng5 Nf3 Nh3 Nc3 b1Q Bd3 f1Q Na4 Qb4 Ba3 Qd1 Re1 h1Q Rc1 Bg7 Bb2 Bd4 Re4 Be3 Bf6 Na6+ Bd8 Qde1 Nh2 Qd4 Qa5 Qd6 Rd4 Ra7 Bg5 Qe2 Nc3 Ba8 Ra4 Rb7 Ne4 Rb8+ Kf7 Re8 Qd2 Re5 Qd1 Rd5 Ke8 Rd4 Qd2 Rb4 Qd1 Rb1 Qd2 Ra1 Qd1 Kb7 c6+ Ka7 Nc5 Qe4+ N7e6 Qh7 c7 Be4 c8B Qe1 d8N Qe2 Ndb7 Qe1 Bd7 Qe2 Na5 Nc7+ Kd8 Nb5 Ke8 Qe1 Nc7 Qe2 N5a6 Qe1 Nb3 Kb7 Bf5 Kc6 Nbc5 Qb4 Bf1 Qa3 Bg2 Qb4 N7e6 Qe1 Qf3 Kd5 Nb8 Qb4 Bg6 Kc4 Nc7+ Kc3 Bf5 Kd2 Bg6 Ba8 Bd3 Bb7 Qe4 Bd5 Qd4 Be4 Qd5 Qa3 Rc4 Qa7 Ra4 Qb7 N7a6 Qbg7 Nc7 Qge7+
2Bb4/4N1b1/P2pP1N1/bpn1RpN1/k1qR2nn/4B1qr/1KN4Q/2B4B w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 d6 e5 c5 d4 cxd4 e6 Qc7 Bg2 Qd7 Bf1 Qd8 f3 b5 Be2 Bd7 Bg5 Ra3 Bf1 Re3+ Ne2 Re4 Bh6 Qc8 exd7+ Kd8 Nd2 e5 Nb1 Ke7 Be3 Qd8 Bc1 Rf4 Ng1 e4 Ne2 e3 Ng1 Re4 fxe4 Qe8 Bd2 Qc8 Bc1 Qd8 h4 g5 a4 f5 c4 d3 a5 b3 e5 b2 h6 e2 Kd2 g4 Kc3 e1B+ Qd2 g3 a6 g2 h5 Nf6 h7 Ne8 c5 Bg7 c6 Rf8 h8B Ke6 c7 Kd5 c8B Kc5 h6 Nf6 e6 Qc7 d8N Nbd7 Nf3 g1B Ra4 Ng4+ Rd4 Be3 h7 Bg5 Nc6 Bd8 Na3 b1Q Nc2 Qa1+ Kb3 Qc3+ Ka2 Rf6 Qf4 d2 Ng5 d1N Bg2 Rh6 Ne7 Rh3 Qh2 Qg3 Bc6 Bb4 Re1 Nde3 Kb2 Ba5 Bh1 Ng2 Re5+ Kb6 Be3 Nh4 Bc1 Qc4 Be3 Bf6 Bg7 Nc5 Bh6 Bg7 h8N Be1 Nhg6 Ka5 Nh7 Bb4 Bhf4 Ka4 Ng5 Be1 Bc1 Bb4 Bfe3 Bba5
3r1q2/NPp3qK/nn1k1pQn/2p1R1BR/NRPb4/2B4N/2b2b1R/5N2 w - - 0 1 illegal: No possible last move, all moves rejected
3B1nk1/1bqbBN2/1bPpr3/pR1N4/3N2P1/2B1Bn1n/3p1R2/K3QbN1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 g6 exf5 Kf7 d4 cxd4 f6 Ke6 f5+ Kd5 f7 Kd6 g4 a5 h4 Qe8 Bd3 Qd8 Be4 Ra6 f6 Rc6 Bf5 Rc5 Bd3 Rg5 Bf5 gxf5 hxg5 Bb7 Rh4 Ba6 Rh1 Bc8 Kd2 Ke6 b4 h5 c4 d6 Kc2 h4 Kb2 f4 g6 d3 g7 f3 b6 h3 b5 f2 c5 f1B b7 h2 b6 Qd7 Ra2 Qc6 Ka1 Rh5 Be3 Nd7 b8B Qc7 b7 Rh6 Rf2 d2 Nc3 Rg6 Ba7 Nh6 g8N Bg7 f8N+ Kf7 b8B e5 Nd5 e4 Ne6 Nf8 Nd4 Bd7 Qe1 Bh8 Bb6 Bg7 B8a7 Bh8 Bg5 e3 Bf4 e2 Be5 Qb8 Bd8 Qc7 Nf5 Bg7 Bc3 Bh8 Nd4 Bg7 Qb1 e1N Qe4 Nf3 Qe1 Rg5 Bb6 Re5 Ba7 Re6 Bb6 Kg6 f7 Kh7 Ba7 Be5 Bb6 Bf4 Ba7 Be3 Bb6 Ng6 f8B Nf7 Nh6 N7g5 Bfe7 Nh3 Nf7 Kg8 Ba7 Nf8 Bb6 Ba6 c6 Bac8 Nge2 Bb7 Rhf1 h1B Ng1 Ne5 Rf5 Bg2 R1f2 Nf3 Nb5 Bh6 Be3 Bg7 Rh5 Bd4 Re5 Bb6 Nd4 Bc5 Nb4 Ba7 Rb5 Bb6 Nd5 Bf1
1R1N2q1/bP2Rn2/KNR2N1Q/Pp1n4/2B3R1/b2bpk1B/r5p1/Nbn5 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 Na6 b4 Nb8 c4 bxc4 b5 Kf7 b6 Ke8 d4 c5 b7 c3 Ba3 c4 Qf3 Nc6 Bc5 Nb8 Bb6 axb6 Qg4 Ra5 Qd1 Rc5 dxc5 b5 f4 Kf7 h4 Kf6 a4 d5 c6 g5 h6 e5 h5 d4 h7 g4 h6 g3 c7 c2 Kd2 c1N Ne2 e4 Rh4 g2 Na3 d3 Kc3 e3 Rg4 d2 Nd4 Be6 Nb3 Nd3 Rc1 Nc5 Kb4 c3 Ka5 c2 Nc4 Bd5 Na1 Ke7 f6+ Ke6 f5+ Kd7 f7 Kc6 f6 Bd6 f8N Be4 f7 Kd5 Nd7 Nf6 f8N Nd3 Ne6 Bc5 Qe1 d1B Qh4 Re8 h8R Be2 h7 Rf8 Rhg8 Nc6+ Ka6 Nce5 h8R Ba7 Qh6 Bf5 R4g7 Ke4 c8B Nd5 a5 Bh7 Re7 Rf2 Nf6+ Kf3 Bd7 Nf7 Nb6 Qf8 Rg5 Qg7 Ra8 Qg8 Nd8 Be4 Bh3 Bf5 Re1 c1B Rb8 Ba3 Rc1 Bg6 Rc5 Nc1 Rc6 Bb1 Rg4 Bc4 Bd3 Ra2 Bf1 Bb3 Bd3 B3c2 Bc4 Bd3
5R2/2b2N2/r1Rr2Nb/b1p1K1Pp/B2q1Pb1/1n1Bp1k1/2QN2B1/3Nq1B1 w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 Ra2 fxe4 Ra6 Be6 Ra1 Bc8 h4 g5 hxg5 a5 b4 a4 Rh6 Nc6 Rh1 Na5 bxa5 Qd5 Bb2 Qd3 Bc1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 d4 c5 g4 a3 a6 a2 d5 e6 b6 c3 b7 e3 b8N c2 d6 e2 a7 e1B d7 Bh6 Ne2 Bb4 Ke5 Ba5 Nc6 Ne7 Nd2 Qb6 d8N Ng8 Nc3 Qb1 Nf7 Nf6 Bd3+ Ne4 Rf1 Rd8 Ne7+ Kh7 f3 Rd6 g6+ Kg7 Bb2 c1B g5 Bc7 Qc2 Ba5 Nb3 Nd2 Nd1 Bc7 Bc3 Qb2 Rb1 a1Q Bd4 Qc3 Rf2 Ba3 Rb2 Bb4 Ra2 Qb1 Ra6 Bba5 Rc6 Bd7 f4 Qc4 Re2 Qb4 Bg1 Qb2+ Nd4 Nb3 Re1 Qc1 Nf3 Qcd2 Re2 Qe1 Nd2 Qc3+ Ke4 e5 Re3 Rh8 a8B Bg4 Bb7 Ra8 Re2 Kf8 g7+ Ke8 g8B Kd7 Bh7 Ke6 Ng6 Ra6 Bb5 Qa1 Ba4 Nd4 Kd3 Kf5 Kc4+ e4 Re3 Rf6 Kd5 Nb3 Rd3 e3 Ba8 Bh3 Rd4+ Kg4 Rb4 Qb2 Rb8 Qc3 Rf8 Rd6+ Ke4 Qc4+ Ke5 Kg3 Ne7 Ra7 Bd3 Ra6 Ng6 Bc8 Rb6 Be6 Bg2 Bg4 Rc6 Qd4#
7q/k1b2bPp/1p6/K2B1RN1/RRB1N1Rn/2B4P/3n1p1B/qbrQb3 w - - 0 1 illegal: No possible last move
1q5b/5p2/1N1k4/1B2pRNr/1N3p1r/BqR1qP1P/Rn1q1Q1K/q1NR4 w - - 0 1 illegal: No proof kernel
7r/1r1Q1p1P/4BK1B/5N1k/3n1pNq/2P4r/R1pqRN2/1Brb1BNr w - - 0 1 legal: proof: g4 b5 f4 a5 b4 axb4 f5 h5 gxh5 b3 c3 b2 f6 exf6 Nf3 f5 Ng1 f4 Qa4 c5 Qa5 b4 Qa4 c4 Qd1 b3 Bg2 Nc6 Bf1 Nb4 Bg2 Bc5 Bf1 Bd4 cxb4 c3 Na3 c2 Nb1 Bc3 dxc3 Ra3 Nd2 Ra6 Nb1 Ra8 Kd2 d5 Kd3 g5 Kd4 g4 Ke5 g3 a4 d4 h4 g2 e4 d3 a5 d2 b5 Nf6 a6 Rb8 h6 Rf8 h7 Rb6 h8N Bh3 a7 Rg8 a8B Bd7 h5 Bc8 h6 Ba6 h7 Rg3 Bd5 Rc6 b6 Bb7 Rh2 Rc7 Ra2 Ng8 Ng6 Rc4 Nh4 Rd3 Nf5 Ne7 Kf6 Rc8 e5 Rh3 e6 Nc6+ e7 Nd4 Bdc4 Bd5 b7 Bf3 b8N Bh5 Qg4 d1R Nd2 b1R Nc6 b2 Ne4 Qd7 Be3 Rbc1 Ne5 b1R Nf2 Rb7 Bb3 Re1 Qd1 Bf3 Neg4 Qd8 Qd3 Bd1 Qd2 Qd5 Bbc4 Kd7 e8B+ Kd8 Bd7 Ra8 Nf3 g1Q Be6 Qg3 Ng1 Ke8 Qd3 Kf8 Bb3 Re8 Qb5 Qd6 Qd7 Rd8 Ra7 Qd5 Ba2 Rdb8 Bb1 Qdg2 Ne4 Qd2 Ra2 Ra8 Re2 Rd8 Ne7 Re8 Nef2 Rc8 Ke5 Kg7 Nf5+ Kg6 Qd5 Rb4 Qd7 Kh5 Kf6 Rb7 Qd8 Nb3 Bc5 Nd4 Qd7 Rg8 Bf8 Rh8 Bg2 Rf1 Bh6 Re1 Nf3 Rg1 Bf1 Rgh1 Ng1 Qh4+
kN6/4PRpq/r5Nr/3Nn3/q1PRpBR1/N2p2nR/2Bn4/2nQK2r w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 cxd4 e3 hxg4 Ke2 d3+ Ke1 d2+ Ke2 Rh6 Ra6 Rh4 Ra1 Rh8 f4 d5 f5 e5 Nf3 d4 Kf2 d3 Ng1 Be6 fxe6 Bc5 Ra4 Nf6 Ra1 Bd4 exd4 Ng8 h4 a5 b4 f5 c4 e4 e7 Kd7 b6 Kc8 b5 Kb7 d5 a4 h5 f4 d6 f3 d7 a3 h6 a2 h7 Ra3 Ne2 Ra7 Nec3 Ka8 Be2 Nf6 Rh3 Qg8 d8R Ra6 Nd5 Nh5 Na3 g3+ Kf1 f2 b7+ Ka7 Rf8 Nc6 b8R Ne5 Rbd8 Kb7 Rb1 a1N Rf7 Nb3 Rd6 Kb8 b6 Ka8 b7+ Ka7 b8N Ka8 Qe1 d1Q Bf4 Nc1 Bg4 Qa4 Bd1 Rc6 Bc2 Ra6 Kg2 f1N Qd1 Nd2 Rb5 Nb1 Kf1 g2+ Ke1 Ng3 Rg6 Nd2 Rg4 Ndf1 Rb7 g1R Rd7 Rh1 Rd6 Qc8 Rd8 Qf5 Rd6 Rf8 h8N Qh7 Ng6 Rc8 Nb4 Rcc6 Rd4 Rcb6 Nd5 Re6 Nh8 Rh6 Ng6 Nd2+
r1B2rN1/1KNP3p/R1n3B1/pn5P/p2R1R1N/NrQqnn2/5k2/R6q w - - 0 1 legal: proof: d4 b5 a4 bxa4 c4 d5 cxd5 e6 e3 Bc5 d6 Bb6 d5 Bd4 d7+ Ke7 Bd2 g5 Bc1 e5 Bd2 e4 exd4 Ba6 f3 Bd3 Bf4 gxf4 Nc3 e3 Nb1 Be4 fxe4 Qf8 Qd2 Qe8 Qd1 Qd8 Ke2 Kf6 Kd3 Kg5 Kc4 Kh4 Kb5 f5 b4 c5 g4 a5 d6 c4 g5 f3 d5 f4 g6 c3 e5 c2 g7 c1Q e6 f2 e7 f3 e8B e2 Qd4+ Qf4 Bh3 e1N Na3 f1R Bg6 f2 Qc3 Qe7 Kb6 Qfe4 d8R Qf6 b5 Qfe7 d7 Nf6 g8N Qf4 d6 Qe8 Kb7 Qee3 b6 Qee5 Rf8 Qc4 d8R Nf3 Bc8 Rb1 d7 Kg4 h4 Kg3 h5 f1N Rh4 Nc6 Rd4 Ne8 Rff4 Nc7 Re8 Qg5 Re6 Qd3 Red6 Qd5 Re6 N3d2 Nf3 Ne3 Nh4 Nf3 Nh6 Rf8 Ng8 Nb5 Ref6 Nca7+ Ka6 Ng1 b7 Rb2 b8N Qh1 Rc6 Rb4 Kb7 Nf3 Na6 Rb3 Nc7 Kf2 Ra6 Nc6
2Q2B2/R2nq3/K4R1p/1BPn1RP1/4p2B/2Rqrb1p/1p1k1B2/N2n2Nr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g6 dxc5 g5 a3 gxh4 Qd6 b5 Ra2 b3 Qf4 b4 Qe5 b2 Ra1 b3 Qd4 Bg7 Qd1 Bc3+ Ke2 Bb4 axb4 Kf8 Ke1 Ke8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 f4 e5 g4 d5 c4 d4 f6 d3 c6 h6 f5 d2 g5 Ke3 c7 e4 f7 h3 f8B Ne7 f6 Qd3 f7 Bg4 c8R Nd7 Ra7 Bh5 Na3 b1N Qc2 b2 Ka6 Ne5 b5 Rh7 b6 Rh8 b7 Ng8 b8B Nd7 Bg3 Ne7 Bh4 Nc3 Rh2 Bg4 Rf2 Ned5 Rf5 Nd1 Qc3 Bf3 Rc6 Rh7 Qh8 Qe2 Nc2+ Kd3 c5 Rb8 Rg6 Rb3 Rgf6 Rg7 Na1 Rg8 Be7 Rd8 f8R Ra8 Rb8 Ke3+ Rb5 Qh2 Qe8 Qe5 Bf8 Qe7 Qc8 Rd3 Rb4 Rb3 Bb5 Rc3 Rc4 Kd3 Nb3 Kc2 Rb4 Re3 Rc4+ N1c3 Ne2 d1Q Kb7 Qh7 Ra3 Rd3 Be3 Qe7 Bef2 Re3 Ra2 Qd3 Ra1 Ra4 Ra3 Rb4 Ra7 Kd1 Ka6 Kc2 Rd4 Rc4 Na1+ Kd2 Re6 Na2 Ref6 Rc1 Rc4 Rh1 Rc1 Nac3 Ng1 Nd1 Rc4 Qb1 Rc3 Qd3
2R3KN/1nNk1p2/3bnPp1/5B1q/pN1qRb2/1R2PRp1/N5rb/3Q2B1 w - - 0 1 legal: proof: e4 d5 g4 b5 a4 h5 axb5 hxg4 c4 dxc4 Nh3 Bb7 Ng1 Bd5 exd5 a5 Qf3 e5 Qg3 e4 Qb3 e3 Qd1 e2 Na3 Rh3 Nb1 Re3 dxe3 Ra6 Kd2 Rh6 Qe1 Rh7 Qd1 Rh8 Kc3 e1B+ Kd4 c5+ Ke5 a4 f4 g3 h4 g6 b4 c3 h5 c2 h6 c4 b6 c3 f5 Nf6 b7 Qc7+ d6 Qc6 d7+ Kd8 b5 Nh7 b6 Bc5 Nh3 Rg8 Nf2 Bf8 Bd3 Rh8 Bd2 c1Q Rh4 c2 Nc3 Qb2 Re4 Qb3 Na2 Na6 b8N c1B b7 Nf6 h7 Ke7 d8R Qbc4 Rc8 Nc7 Na6 Nfe8 b8R Nd6 Rb3 Ne6 Nc7 Kd7 Kf6 Bh6 Bb1 Nb7 Nd3 Bf2 Be1 Q4d5 Ndb4 Bg1 Bf2 Bh2 Bg1 Qc5 Bc2 Rd8 h8N Bf4 Rab1 Ba3 Rc1 Ng5 Kg7 Qcd4+ f6 Ne6+ Kh7 Qa5 Bb1 Qg5 Rc2 Qb5 Rf2 Qbd5 Rf3 Q5e5 Nd3 Bd6 Ndb4 Qg5 Re5 Qg4 Bf5 Qg5 Re4 Qg4 Ne8 Qg5 Kg8 Qh5 Rb8 Rc8 Ra8 Rc6 Nc7 Rc2 Rc8 Rg2
1R5B/3P1N1B/1N2NQKp/kqq3B1/3n1r1b/3PpR2/1pN3p1/rB3qb1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 a5 b4 axb4 c4 g5 f3 Be6 f6 g4 f4 Nc6 f5 Bd5 cxd5 Ne5 Rh3 Nf7 Rh1 Ng5 hxg5 Qd6 Rh2 Qd7 Rh1 Qd8 Kf2 Kd7 Ke3 b5 Kf4 c5 a4 Kc7 f7 Kb6 a5+ Ka6 d6 e3 f6 e5+ Kf5 e4 g6 h6 g7 g3 d7 b3 Nh3 c4 Kg6 b2 Ra3 b4 Bd3 g2 Qf3 e2 Ng5 Be7 f8B e1B f7 b3 Qf6+ Qb6 Rh4 Kb5 a6 Bc5 a7 Bg1 Bc5 Qd6 Bd4 Qc5 f8N Kb4 Bc2 c3 Nf7 Bef2 Rh1 Bh4 Ne6 Rf8 Bd3 c2 a8N Qb5 Nb6 Ra8 Nc3 b1Q Nd1 b2 Ne3 Ra4 Rh3 Ka5 Rb3 Ra1 Rf3 Rh7 Bc4 Rh8 d3 Rh7 Rb4 Rh8 Bd2 c1Q Ba2 Qcc5 Nc2 Qf1 Bg5 e3 Bb1 Ne7+ Kh5 Ng6 g8B Ne7 Bh7 Nc6 Kg6 Rf8 Na4 Qbc4 Rb8 Q4b5 Be5 Nd4 Nb6 Bhf2 Qf5 Bg3 Bh8 Bh4 Qf6 Re8 Ng7 Re4 Ne6 Rf4
Rr2Q1qq/2B4B/rN2pp2/1KPp4/3RB2R/3p1Pb1/1k4BR/1nq1rN2 w - - 0 1 legal: proof: d4 a5 h4 c5 h5 cxd4 b3 a4 h6 b5 a3 b4 axb4 a3 b5 gxh6 Nc3 h5 Nb1 h4 e4 Na6 b6 Nc5 e5 d5 Bd2 Bd7 Bc1 Ba4 bxa4 Ne4 Be3 Rc8 Bc1 Nd6 exd6 Ra8 Kd2 Kd7 c4 Kc6 g4 Kc5 a5 Kb4 a6 h5 g5 f6 a7 e6 b7 d3 b8R+ Qb6 d7 h3 d8R h4 f3 h2 c5 h3 g6 a2 g7 Rh6 Bg2 Qb5 Na3 Rh8 Ne2 Qb7 Ng3 Be7 Nc4 Rh7 Nf1 Bd6 Nb6 Nh6 g8B Rh8 Bh7 Qg7 Rbc8 Rb8 a8B Ng4 Bc6 Qg8 Be8 Ne3 Beg6 Nc2 Be4 Kb3 Bb2 Bg3 Be5 Ra8 Bc7 Ra6 Ra8 Kb2 Rdb8 Na3 Qa4 Qg4 Qe8 Qg8 Rc1 a1R Rc4 Rc1 Rd4 Re1 Rg1 h1Q Rb7 Qh2 Rh1 Qg1 Rbb8 h2 Rb7 Ka2 Kc3 Nb1+ Kb4 Kb2 Kb5 Qe3 Rbb8 Qc1 Rd8 Kc2 Rd7 Kb2 Rg7 Qc3 Rg4 Qc1 Rg1 h1Q Rh4 Qh3 Rh1 Qf7 Qc6 Rb8 Rh2 Qg7 Qe8 Qg8 Rg4 Qhh6 Rf4 Qhg7 Rfh4 Q7h8
2n2R1B/pk1p4/1nb2PrR/nR4nB/3r1p2/P3B3/r1RN1p2/B2KN1Q1 w - - 0 1 legal: proof: d4 b5 g4 e5 f4 h5 gxh5 c5 e4 b4 c3 exf4 e5 f5 Nh3 bxc3 Ng1 Qf6 exf6 c4 Be2 Bd6 Bf1 Bc5 dxc5 Kf8 Qc2 Kf7 Qd1 Ke8 b4 Kd8 h4 Kc7 h6 g5 h5 f3 a3 g4 h7 f4 b5 c2 c6 c3 h6 g3 Be3 c1N Qc2 g2 Nd2 Na6 Qb1 c2 Be2 Nc5 b6+ Kb8 b7 Ne7 Ra2 N1b3 Rb2 Na5 Rb5 c1R+ Bd1 Re8 h8R Na4 h7 Rc4 Rh6 Rd4 Rf8 Nb6 h8B f2+ Ke2 Kc7 Ngf3 Rb8 Ne1 g1N+ Kf1 Rd8 Bh5 Nf3 Ke2 Ng5 Kd1 Re8 Qf5 Rd8 Qg4 Re8 Qg1 Rd8 Rf7 Rg8 Rf8 Rg6 Qh2 Kd6 c7 Kc6 Qg3 Ra8 b8B Bb7 Qg1 Nec8 Ng2 Ba6 Ne1 Kb7 Rb1 Bb5 Rb3 Ne7 c8R Bc6 Be5 Rb8 Rb1 Re4 Ba1 Rd4 Rce8 Nc8 Rb5 Nd6 Ree5 Re8 Rb2 Nc8 Rf5 Re5 Rc2 Rb5 Rfc5 Rb2 Rb5 Ra2
BrnQ1rqB/k5N1/1R2NB2/1b1b2r1/1P3r2/qB2b2P/Rn2q1NK/4r1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 f5 d4 a5 b4 c5 e4 Kc7 b6+ Kb7 e5 g5 e6 c4 h3 g3 e7 g4 e8B c3 d6 a4 d5 a3 d7 c2 d6 a2 Bf7 Bh6 Bd5+ Nc6 Qd2 Rb8 Be6 Na5 Qd1 Ne7 Bb3 Rf8 Bfc4 f3+ Kf1 f4 Qd3 g2+ Kf2 Qe8 Bb2 c1R Rh2 Re1 d8N+ Ka8 b7+ Ka7 Nd2 Be6 d7 Nc8 Rc1 a1Q Bd5 Qa3 Nf1 Nc4 Bh8 Nb2 Ne3 Bg5 Bc6 Bd5 Ne6 Qh5 d8N Bh6 Ne2 g1R Ng7 Rg3 Ng2 Qe8 Rh1 Qe6 Rf1 Qg8 Kg1 f2+ Kh1 f3 Nde6 Be3 Rc2 Rf4 Rg1 f1Q Kh2 f2 Qd1 Rgf3 Qd3 Be4 Qd8 Rf8 Bcd5 R3f4 Rc6 Bf3 Rb6 Be4 Rh1 Bf3 Ng1 Qe2 Be4 f1B Bh7 Bd5 Be4 Qf2 Bf3 Bb5 Be4 Qe2 Bf3 Nd6 Be4 Rc8 b8B+ Ka8 Nf3 Rg1 Qf6 Bb7 Qd8 B7c6 Bc7 Rb8 Bed5 Nc8 Be5 Rc1 Bf6 Ka7 Rf1 Rc5 Ra1 Ba8 Ra2 g3+ Kh1 Bac6 Nge1 g2+ Kh2 g1R+ Ng2 Re1 Ng1 Bb7 Bc6 Rg5 Bf3 Bd5 Be4 Bdc4 Ba8 Bd5
1bq1R1b1/rBrRQr1k/1NnB4/2B3R1/P2B4/2qPR1bK/1r4r1/n2N3q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 Kf2 Kg7 a4 b5 g4 h5 Kg2 e5 f6+ Kh7 d6 c5 d3 c4 d7 c3 g5 h3+ Kh2 b3 f5 e4 f7 h4 f6 b2 Be3 b4 Bc1 b3 Qe2 c2 Be3 c1Q Qg4 Qc3 Qe6 Bd6+ Bf4 e3 f8B e2 f7 e1B Be5 Ra7 Be7 Nf6 f8B Ne4 Bg2 Nc6 Nd2 b1R Ra2 b2 Nc4 Nc5 Nb6 Bb8 Ne2 Nb3 B7d6 Rc1 Bd4 b1R Rg1 Rg8 Qe7+ Rg7 Ra1 Rb2 Bh1 Qe8 d8R Be6 Rd7 Bg8 Bg2 Qc8 g6+ Kh8 Rb1 Na1 Bf3 Bf2 Rg5 Rg1 Re1 Rg2+ Kh1 h2 B6c5 Na5 Bb7 Bfg3 Bd6 Nc6 B6c5 Qb3 Nc3 Qc2 Ree5 Rf7 g7+ Kh7 Nd1 Qc3 Re6 Rgc2 Re2 Rc1 Kg2 h1R Bd6 Rg1+ Kh3 Rg2 Re3 Rcc2 Kg4 h3 B6c5 h2 Kh3 Rf5 Bd6 Bd5 g8R+ Rf7 Bh6 Bb3 Re8 Bd5 Bf8 h1Q+ Kg4 Rg7 B6c5 Bg8 Bd6 Rf7 B6c5 Qf1 Kh3 Qfe1 Bd6 Qh1+ Kg4 Qh6 Bf4 Qa5 Qd8 Qh1 Ba3 Qd2 Bfd6 Na5 Qe7 Rc7 Bab4 Nc6 Bbc5 Bh2+ Kh4 Qc3 Kh3 Bg3+
2BR1q2/1Qqn2RN/1N4r1/1BP2Bb1/2P1br2/K1B1rRbn/b2R4/2qb3k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kd2 Ke7 Kc3 Kf6 Kb3 Kf5 g4+ Ke4 g5 d5 g6 a5 c3 f5 g7 h5 e3 f3 b6 a4+ Ka2 f2 b4 f4 b7 f3 b5 h3 b6 h4 Bc4 f1Q Na3 f2 Qb3 d4 Ne2 Kf3 e4 Kg2 e5 h2 e6 h3 e7 d3 e8B d2 Qb5 Be6 Qb3 Nf6 g8B Ng4 Ng3 Rh6 Nh5 Bd6 Nf6 Qc7 Bc6+ Bd5 Bh7 Be4 Qb1 Nd7 Bb2 Rf8 b8R Qe1 b7 f1Q Ng8 Nf2 Ba6 Qe3 Nc4 a3 Kb3 a2 Ka3 Rff6 Ba4 d1B Rf8 Qc1 b8R Rf3 Bb7 Re3 Nf6 Bf4 Rg8+ Bg5 Rbc8 Bd5 Rcd8 Be4 Qd3 Bd5 Bc8 Be6 Rb1 a1B Rg7 Bg8 Qd6 Bf7 Bd3 Rg6 Nb6 Ba2 Bdc2 Ne4 Nh7 Qf8 Bb5 Nf2 Rf1 h1R Qf4 h2 Bf5 Nh3 Qd6 Rg1 Qf4 h1B Qe4+ Kh2 Qb7 Be4 Rf4 Rg4 Rf3 Re1 c4 Re3+ Kb4 Rh4 Bf6 Kg1 Rb2 Kh1 Rc2 Be5 Rd2 Bg3 Bc3 Qb1+ Ka3 Rf4 Qc6 Qa1 Qb7 Qc1+
bbR3Rb/1b1B2Br/PK4q1/1b1B3r/5Q2/n4nR1/1NP1qkB1/N4qrR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kd3 b5 f4 d5 g4 e5 a4 h5 g6+ Kf6 a5 h4 a6 b3 g7 b2 Rh3 b4 Rh2 h3 Bg2 e4+ Kd2 d3 Ke3 d4+ Kd2 e3+ Ke1 d2+ Ke2 d3+ Kf3 b3 Ke4 e2 Ra5 e1B Na3 b1Q Qe2 d1B Re5 d2 Nf3 b2 Qe3 Qd6 Nc4 Rh5 Rh1 h2 Nd4 Nh6 g8B Nf7 Nb3 Nd7 Na1 Ra7 Qd4 Qb6 Kd5 Be2 Re3+ Nfe5 Rg3 d1Q Be6 Bg7 Qd2 Bh8 g5+ Kg7 g6 Kf6 g7 Nf3 g8B Nde5 Qd4 Rah7 Bd7 Bb4 Bd2 Bd6 Bc3 Bb8 Bf7 Qe6+ Kc5 Bb7 Qe4 Qe8 Bd5 Qg6 Kb6 Bd3 Qd4 Qe2 Qf2 Qbd1 Qf1 b1R+ Nb2 Bb5 Qf2 Kg7+ f6+ Kh6 f5 Qdf1 Qd4 Rd1 Qb4 Rb1 Qd6 Re1 f7 Rc1 f8R Nc4+ Kc5 Na3 f6 Rd1 f7 Ba8 Rc8 Rc1 Bg4 Kg5 f8R Kh4 Qf4 Bb7 Bg7 Re1 Rg1 h1B Rg8 Nh2 B2f3 Ba8 R3g2 Rc1 Be4 Qff3 Bd7+ Qgg4 Kb6 Rb1 Qe3 Qg6+ B5c6 Re1 Rg5 Bg2 Rh1 Rg1 Qd2 Qff1 Rg4+ Kh3 Qf4 Bf3 Rh4+ Kg2 Rh3 Kf2 Rg3 Re5 Bd3 Reh5 Bc4 Ke1 Bce6 Be4 Bh3 Nf3 Bg2 Bd5 Be6 Kf2 Bcd7 Bdc6 Bd5 Bcb7+
N1Qqr1n1/q1B2P1P/r2B4/2R1K1R1/1bbn4/qNb5/1nRB2bR/b5kB w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 h4 e5 f4 a5 b4 a4 c4 d6 b6 a3 b7 d3 h5 d2 b5 g3 h6 g4 c5 a2 h7 g2 c6 g3 b6 Ra6 c7 Nc6 b8B Bb7 Qc2 d1B c8R Be2 Nf3 g1Q Bg2 Qc5 Bd2 Qa3 Bc7 Bc4 Nd4 Be7 Bf3 g2 Nc3 g1Q Rc1 a1B Ncb5 Ba8 Nb3 Nd4+ b7 Qg7 Rh2 d5+ Ke3 e4 b8R Bb4 Bh1 Qge7 Rb7 Qc5 Rg1 Qa7 Rg5 Bbc3 Bb8 Bb4 Rc5 Bbc3 Nc7 Bb4 Kf2 e3+ Kg3 e2 Rb6+ Bc6 Na8 e1B+ Kg4 Bbc3 Bc7 Bb4 Bc1 Bec3 Bd2 Ne6 Rb8 d4 Rc8 d3 Kg3 Nd4 Kg4 Kf7 f6 Ke6 f7 Bg2 f8B Kf6 Bfd6 Ke6 Be3 d2 f5+ Kf6 Kf4 d1N Bd2 Nb2 Rg4 Ne7 Rg7 Re8 Rg5 Ng8 Qc1 Kf7 f6 Ke6 f7 Kf6 Rcf5+ Ke6 Be5 Kd5 Qc2 Bb5 Bed6+ Kc4 Qc1 Kd3 Rc5 Ke2 Qc2 Kf1 Qf5 Ne7 Ke5+ Kg1 Ba5 Bc6 Rc4 Bd5 R8c5 Be6 Bac7 Ng8 Be1 Bd2 Rc2 Bdc3 Bd2 Bc4+ Qe6 Ne7 Qc8 Ng8+
q1Q1n1bB/P4nbb/qR2Bk2/6N1/2B1rP1K/1q1b1NB1/3N1NR1/rr4b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 c5 g4 e5 f4 b5 Kf2 h5 a5 c4 g5 c3 a6 c2 g6+ Kf6 g7 b3 d6 b4 d5 b2 d7 h3 Kg3 e4 d6 h2 Bd2 c1B Be3 b3 Bd2 e3 Qg4 e2 Kh3 e1R Ba5 h4 Ra2 Be3 Nd2 b1Q Ngf3 b2 Bc4 Nc6 Bc3+ Ne5 a7 Qa5 d8N Rb8 d7 Ba6 Bd4 Bg1 Nc6 Re4 Nb4 Rb7 Bf2 Nf7 d8N Qb6 Be6 Bd3 Bg3 Qa6 Bc4 Qd1 Ne6 b1B Neg5 Qb3 Rc2 Rb6 Be6 Rb5 Rc6 Ra5 Rb6 Ra1 Bc4+ Nd6 Be6 Nh6 g8B Bg7 Bgf7 Rd8 Bc4 Rb8 Bfe6 Bf2 Rg1 h1B Rg2 Ne8 Rb7 Nf7 Rb6 Be2 Nd3 Bg1 Nf2 Bed3 Qh5 Bbc2 Qh8 Rb7 Kg4 h3 Kh4 h2 Qf8 Bb1 Qc5 Qd1 Qc8 Bbc2 Rd6 Rbb1 Rb6 Bb3 Qd7 Ba2 Qc8 Qb3 Nd4 Rd1 Bb5 Nd8 Bg8+ Re6 Bf7 Bab1 Bc4 Bh8 Bg8 Be4 Bf7 Re1 Bg8 Kg7 f6+ Kg6 f7 Bbd3 f8B Kf6 Bh6 Reb1 Bf8 Bh7 Bg7+ Ke7 Bf7 Re3 Bfd5 Bg8 Be6 Nf7 Nd1 Re1 Re2 Bhe4 Nf2 h1Q+ Nfh3 Beh7 Rf2 Qd5 Rg2 Qa8 N4f3 Re4 Bd4 Be5 Nf2 Bf6 Be3 Bb2 Bd4 Bc3 Bh8 Bg7 Qd7+ Kf6 Qd8+ Kg6 Qc8 Kf6
1rB1b3/1B2RrN1/qN1q3n/b1B3n1/b1nP1P2/2rq4/kN1RK2N/2Q1bB2 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 d4 Kd7 b4 Ke6 g4 Kd5 f4 e5 g6 c5 g5 a5 b6 h5 b5 e3 g7 e2 g6 e4 b7 a4 b6 c3 Ra2 Kc4 Ra1 a3 Rh2 c2 Nh3 Kb3 Bd2 a2 Kf2 e1N Nc3 c4 Na4 e3+ Ke2 h4 Bc3 Qd6 Bb2 c3 Ba3 Nf3 Qe1 c1R Qg3 c2 Bc5 Ra7 Ng1 h3 Nb2 Ng5 Qe1 Nd7 b8N Ne5 b7 Bd7 Nc6 Nh6 b8N Be8 g8B+ Nc4 g7 Rf7 Nd8 Ba4 Rb1 a1Q Nf3 Ka2 Nd7 Be7 Rf2 h2 Nb6 h1B Nh2 Bhc6 Ne6 Bd8 Bh7 Bcb5 g8B Be8 Ng7 Bc7 Bf5 Bd8 Kd3 e2 Bc8 Bc7 Qc3 e1B Rd2 Bd8 Ke2 Bc7 Nd5 Ba5 Bh7 Rhf8 Be4 Rg8 Nd3 Rgf8 Rb7 Qb1 Beg2 Qb5 Be4 Qba6 Nb2 Beb5 Be6 Rb8 Nb6 Be8 B6f5 Rb1 Re7 c1Q Be6 Qc2 Bc8 Rc1 Beb7 Qb3 Qc2 Qg3 Qd1 Rc3 Qc1 Qd3+
q1n4N/4n3/NknqBP1b/rn5b/1rRPRR2/2NQ2KR/br1Nq2B/8 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 b4 c5 f4 Kc7 Kf2 h5 g5 e5 d6+ Kb6 f5 a4 g6 h3 f6 h2 g7 c4 d7 c3 Bg2 h4 Qd3 c2 Qd1 a3 Qd2 h3 Nf3 a2 Qf4 e3+ Kg3 e4 Qh4 e2 Nc3 e1N Ne2 e3 Ne5 Ne7 g8R Ra5 Bd5 Bh6 Qe4 Nbc6 Nc3 e2 Bf4 c1R Rg4 Rb1 Nf3 Rb2 Qd3 Nc2 Be6 Na3 Rac1 a1Q Nd2 Qc7 d8N Qd6 Rhe1 h1B Nf7 h2 Rf1 Rf8 Nh8 Bf3 Rh4 Bh5 Rh3 e1Q+ Rf2 Kb7 b6 Qe2 b5 Bd7 Be5 Rb8 Rf4 Nc8 Re1 Bde8 Rc1 Bef7 Rc2 Ka8 b7+ Ka7 Rc1 Kb6 Rc2 Rba8 b8N Qa2 Na6 Rb8 Ncb1 Qad5 Rc4 Qde4 Nc3 h1N+ Kh4 Kb7 b6 Nb5 Rb4 Ng3 Rc4 Ka8 b7+ Ka7 Rh1 Kb6 Rh2 Nf1 Rh3 Ne3 Kg3 Nd5 Nf1 Ra8 Nd2 Ra7 b8R+ Rb7 Ra8 Nde7 Ra7 Rb8 Rc7 Nb4 R7c5 Qa8 Re4 Nbc6 Bf4 Ra4 Rf5 Rab4 Be5 Rb7 Rff4 Ra7 Nc7 Ra5 Na6 Bg8 Bd5 Be8 Rf5 Bg5 Rc5 Qf2+ Kg4 Ka7 Bh2 Bh6 Rff4 Qe2+ Kg3 Kb6 Ba2 Bgf7 Bd5 Bh5 Bf7 Bd7 Bg8 Be6 Bf7 Bb3 Rc4 Ba2 Bd5 Rb1 Be6 R1b2
B1b1b2r/N2b3P/2n2R2/bqrb2Q1/BR1N3P/R7/1BqBn2r/1KR3bk w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 h4 a5 c4 g5 Kc2 f5 b6 d5 c5 f3 b5 f2 h6 f4 h7 g4 c6 f3 b7 g3 c7 d3+ Kb2 d4 b6 g2 Qa4 d2 Ka2 Kf4 e5 Kg3 e6 d1B e7 d3 e8R d2 Qd7 a4 Qe6 a3 Qe4 Qd5+ Qc4 Qb5 Rd8 Nf6 Qe4 Nc6 b8B Ba4 b7 d1Q Bh6 Ra5 Qe7 Nh5 Nc3 Nf4 Rd6 Ne2 Bd2 Bd7 Rc1 Qc2+ Ka1 a2 c8B Bh6 Rf6+ Bf4 Ba7 Bc7 b8R Bb3 Bb7 Bd5 Ba8 Be8 Nh3 g1B Ng5 Bd8 Bg2 f1B Ne6 f2 Nd4 Bc7 Bf3 Bh3 Be4 Bc8 Rh3+ Kg4 Bc5 f1B Ba3 Bd8 Rhf3 Bh3 Bb2 Bc7 Rd3 Bcd7 Bf3+ Kg3 Qg7+ Kh2 Qg5 Bc8 Bg4 Kh1 Bd7 Qbb3 Rb6 Rc5 Rb4 Ba5 Ncb5 Qa4 Na7 Qb5 Be6 Bg4 Bf7 Bgd7 Ra3 Bg2 Bb3 Bd5 Bbc3 Qd1 Kb2 a1R Ba4 Ra2+ Kb1 Nf4 Be1 Rh2 Bb2 Ne2 Bd2 Qc2+
B1N1r2Q/1qrn1Pnn/4R2P/r3b3/3B2bb/1NK4k/2RBrB2/1bR1R1r1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 c4 d5 b4 e5 f4 a5 h5 g5 b6 e4 b7 g3 b5 g2 c5 e3+ Kd3 a4 h6 e2 c6 e1R b6 g4 c7 g3 Kc2 d3+ Kd2 a3 Kc3 d2 Qa4 d1B Be3 a2 Qa6 Bg4 Bd2 Nd7 b8B Re2 Na3 Qe7 Nc4 Nc5 Nf3 g1R Rc1 g2 Ba7 a1R Rc2 Ra5 Nd6 Rh7 b7 Bg7 b8B Bd7 c8R d4+ Kb4 d3 Kc3 Bc6 Nd4 Be4 Nb3 Qb7 Qb5 Bh8 Qe8 Rc7 Bb6 Bg7 B8a7 Rb8 Qd7 Bh8 Qh7 Ra8 Re8 Rb8 Re7 Re8 Nc8 Bg7 Be3 d2 Qh8 Bd3 Rc1 Bb1 Re6+ Kf7+ f6 Kg6 Bd4 Kf5 f7 Be5 f8R+ Nf6 Rg8 Nh7 Rg7 Ke4 f5 Kf3 f6 Kg3 f7 d1N+ Kb4 Ne3 Kc3 Rb5 Ba5 Nf5 Rgg6 Ng7 Rgf6 Qa8 Rf2 Qb7 Bb4 Ra5 Bb6 Re1 Rfc2 Re3+ Bd3 Re2 Ba6 Rge1 Bc4 g1B Bd5 Bf2 Bf3 Rd1 Re1 Kh3 Ba7 Bh4 Bd5 Qb6 Ba8 Qb7 Kc4 Rd3 Bd2 Rg3 Bb6 Rg1 Kc3 Rce7 Bd8 Rc7 Bf6 Bd6 Bf2 Bf4 B6d4 Bfg3 Ra6 Be5 Re6 Nd7+
4q3/1BqR1q1k/1N2Bnbb/1B2r1BN/1bN1PP2/R4bNr/Qnq3K1/4b3 w - - 0 1 illegal: No proof kernel
5B2/2Q1KqP1/B1P5/R1rN2rr/3RN1n1/1Rb2kn1/b4nq1/rBBR2nn w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 Kf5 Kd5 g4 h5 b4 f3 g6 a4 e3 a3 b6 a2 b5 h4 g5 f2 g7 h3 b7 d3 g6 d2 b6 h2 c3 Nh6+ Kf4 f5 g8R Ra5 g7 Nc6 b8B Qe8 Kg5 Ke4 Kf6 d5 b7 f4 c4 d4 c5 f3 Ba6 f1Q Qe2 d1R Bd6 d3 b8R d2 Qc4+ Nd4 Rb3 f2 Ne2 Be6 Nbc3+ Kf3 e4 Qg2 e5 f1N Ng3 Ne2 Nge4 Ng1 c6 Bf7 e6 Rg5 e7 Ng3 Qe6 Re1 Qc8 d1N Qc7 Nf2 Nd5+ Re3 Bda3 Rc3 Bb4 Qd7 e8B Be6 Bba3 Bb4 Bg6 Bf7 Rd8 Qe8 Ne3 Rcc5 Rd4 Bc3 Nd5 Qg8 Ke7 Nhg4 Bf5 Rhh5 Bg6 N1e2 Rhd1 h1N Nd6 Ng1 Bb1 Be6 Ne4 Qf7+ Kd6 Qf5 Rbb4 Rh6 Ne7 Rhh5 Rb5 Bb3 Nd5 Rc4 Bb4 Qf4+ Kd7 Qf6 Bf8 Rc5 Ra5 Qf5+ Ke7 Qf4 Bc2 Qf5 Rb1 a1R Bcd3 Ba2 Rb3 Qf4 Bb1 Qf7+
2b2q1n/1N1KBP1B/PRn1nb2/5NB1/knb1Nb2/r6R/b4N2/qBr4Q w - - 0 1 illegal: No possible last move
3R4/nP1NBR2/1r4N1/1n1nb1K1/Bq3bR1/2Pn2BB/1b2Q1bq/k3br1R w - - 0 1 illegal: No possible last move, all moves rejected
b1qKNn2/3Q1RR1/B3Br1r/n1n3b1/b2B3k/nP2Prb1/q2R1N2/3B2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 d5 g4 f5 c4 a5 b3 h5 g6 Kf6 e3 Kg5 g7 h4 c5 d3 c6 h3 b6 d2 c7 d4 b7 a4 Ne2 a3 Ng1 a2 Ne2 h2 Qe1 d1Q Nd2 d3 Rg1 h1B+ Rg2 Be7 Nb1 d2 Ba3 Ra6 Bc5 Nc6 b8R Na5 Bd4 Bd7 c8B Rf6 Bb7 Qc8 Na3 Qb1 Nc4 d1N Ng1 Rhh6 Qd2 Kh4 g5 Ba4 g6 Nc3 Nh3 Ne4 Nf2 Nc5 Nd6 Qb2 Rb1 a1B Bba6 Qa2 Bfe2 Bd8 Bd1 Ne7 g8R Bb2 g7 Ng6 Bde2 Nf8 Bd1 Bc3 Qd3 Be1 Ne8 Be7 Rb7 Bd8 Ng4 Bg3 Rf7 Be7 Rb2 Bd8 Nf2 Be7 Ke2 f3+ Kd2 f4 Kc3 Bd8 Kb4 Be7 Rg1 Bd8 Nh3 f2 Rd2 f1N Nf2 Ba8 Qf5 f3 Qd7 Nc6+ Kc4 Be7 Kd5 Bd8 Rb2 Nd2 Rc2 Nb1 Re2 Rf4 Rd2 Na5+ Ke5 Bf6+ Kd6 Bg5+ Rf6 Rh5 Rf7 Rf6+ Ke7 Rh7 Ba1 Rhh6 Bd4 Qc6 Kd8 Na3 Rh8 Qe6 g8B Qc4 Rhh7 Qcc2 Ng4 f2 Rhg7 f1R Nf2 Qc4 Bh7 Qe6 Bf5 Qc6 Be6 Qb7 Nd3 R1f3 Nf2 Qc8+
n1k2NR1/2b1Bbr1/2r2Q1R/R2BrNqn/K1B1Pb1q/7B/3RP1b1/2q1q3 w - - 0 1 legal: proof: h4 b5 d4 g5 a4 gxh4 axb5 e5 f3 e4 fxe4 c5 Rh2 cxd4 Rh3 Bg7 Rh1 Bf8 Kd2 a5 b4 f5 c4 d5 Kc2 Kd7 Kb3 h5 g4 a4+ Ka3 d3 b6 f4 g5 d2 b7 h3 c5 h2 g6 f3 b5 h4 b6 f2 g7 d4 Qe1 d1R Ra2 d3 Bb2 h3 Nd2 Rh6 Ndf3 d2 Ra1 Rc6 Rb1 Qg5 Nd4 Nf6 g8B Bd6 Ngf3 Ra7 Ra1 Na6 b8R Nc7 b7 Nh5 Bd5 Bf4 Nh4 Na8 Nhf5 Rc1 Bc4 d1Q Qc3 Qe1 Ne6 Rb1 Kb4 a3 Nf8+ Kd8 Kb3 a2 Qf6+ Kc7 Bg2 Be6 Rd8 f1B b8R Bf7 Rd2 Rc1 Kb4 Re6 c6 Re5 Ba3 Qeh4 Rb7+ Kc8 c7 Qe1 Rg1 h1Q Rb6 h2 Bh3 Bg2 Kb3 Rb7 Be7 Rc2 Bd5 Rc6 Ka4 Qc1 Ra6 Ra7 Ra5 Qe1 Rb1 a1B Rb6 Bd4 Rba6 Bb6 Bc4 Bf3 Rg3 Bg2 Rg4 Qhg1 Bd5 Qgh4 Rg8 h1Q Bc4 Qc5 Bd5 Qec1 Bc4 Qh1e1 Bd5 Kb7 c8B+ Kb8 Bd7 Bc7 B7e6 Qe3 Bc4 Q3g3 Bed5 Kc8 Rb6 Qgg5 Qh8 Rc5 Rh6 Rc6 Qg7 Rg6 Qf6 Rg7 Bb3 Ra6 Bbc4 Rc6
1b2bB2/1k1B2Pr/N3B3/2n1bPBR/4KN2/1r2Rn2/Rb1q1qn1/Q3qqR1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 g4 Kc7 b4 e5 c4 h5 c5 a5 b6+ Kb7 g5 a4 f6 h3 f7 e4+ Kf4 h4 g6 h2 b5 a3 g7 d3 f3 d4 Qe2 d2 Qd3 d1N Qc3 a2 Ke5 e3 f4 d3 f5 d2 Qc2 e2 Nh3 e1B Na3 Bd7 Nc4 Ne3 Rg1 h1Q Qa4 d1Q Na3 Nh6 Nf4 h3 Bc4 h2 Be6 Rh7 Nc2 Qh4 Nb4 Be8 Na6 Ng2 Ke4 Bd6 f8B Qf2 Be3 Nd7 c6+ Kc8 c7 Bc3 Qd4 Kb7 Bd2 Rb8 c8B+ Ka8 Qe5 Ng4 b7+ Ka7 Bc1 Bb2 Qf6 Nge5 Be3+ Nb6 Bcd7 Qdd2 Rae1 a1B Re2 Rd8 b8R Nf3 Ra8+ Kb7 Qc3 Na4 b6 Bb8 Qa3 Qd6 Bc1 Be5 Re3 Bab2 Qa1 Qdd2 Bc8+ Kc6 b7 Rd3 Ra7 Rb3 Ra8 Bbd6 b8R Bc7 Rb4 Bb8 Rc4+ Kb6 Bcd7 Kb7 Rc2 Bbd4 Ra2 Bb2 Rd1 Qhf1 Rde1 h1Q Rd1 Q1e2 Rg1 Bbc7 Rc8 Bb8 Rc6 Qef1 Rcc3 Nfh4 Rh3 Nf3 Rh5 Qhh4 Re3 Qf2e1 Be7 Qhf2 Bg5 Bbc3 Ba3 Bb2 Bf8 Nc5+
6N1/n1Kr2rR/2RP4/BbN1R1r1/7n/NN1P2br/2rQrq1k/1r2RBr1 w - - 0 1 illegal: No possible last move, all moves rejected
2k1KQ1b/r1br4/1q6/2n1N3/3P1P1p/R2RrbB1/BnRbB1Bb/n4NR1 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kd7 Ke3 c5 Kf4 a5 Ke5 h5 g4 e3 d4 h4 b4 c3 f3 c2 g6 e2 g7 e1R+ Be3 c1B g5 c4 b6 c3 g6 a4 b5 c2 b7 a3 b6 a2 Rh2 Ra7 Bg2 Rh7 Nd2 Na6 b8R Nb4 b7 Qb6 Ra8 Nf6 b8R Ne4 g8B Nc5 g7 Bb7 Nf1 Bd2 Bc4 c1B g8B Bg7+ Kf5 e5 Be2 e4 Bf4 e3 Bg3 Bf6 Kg6 Nbd3 f4 Nb2 Qc2 Ba5 Nf3 Bcd2 Qf5+ Kc7 Be6 Bh8 Qf8 Rd7 Ne5 Bf3 Rc1 a1N Rc2 Qc6 Rb3 Qb6 Rh1 Kb7 Rg1 Kc7 Bb5 e2 Rd3 Kb7 Re8 Kc7 Re7 Kb7 Kf7 Kc7 Ke8 Kc8 Beh3 Rd1 Ra3 e1B Be6 Bf2 Bd5 Re1 Ba2 Re4 Be2 Re3 Rh1 Bg1 Re6 Bh2 Rg1 Qb7 Ra6 Bc7 Rd3 Qb5 Raa3 Qb6
1rk5/1bP1Bb2/2b1N2K/2b1P3/B1R1RrqB/Nr1N2pn/1b3BN1/Q4nn1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 a5 b4 g5 h4 d5 c4 Kd7 e4 d3 c5 d2 c6+ Kc7 b6+ Kd6 b7 Kc7 b5 a4 e5 d4 h6 d3 h7 a3 h5 a2 h6 Bc5 Nh3 Ra3 Nf2 Qd7 Rh4 Rb3 Ba3 Ne7 b6+ Kd8 Bb4 Nd5 Na3 Rg8 Rc1 a1B h8B Bb2 Qe1 d1B+ Be2 d2+ Nd3 Bc2 h7 d1B Qh1 Bb1 Rc4 Ba2 Re4 Qg7 c7+ Kd7 Qf1 Nc6 b8B Bb7 Ba7 Rb8 Rg4 Qg6 Bf6 Kc8 h8N Bc2 Bd1 Nd4+ Kf2 f3 Kg3 Qg7 Ng6 f2 Nh4 Nf4 Ng2 Nh3 Rgf4 g4 Kh4 g3 Kh5 Ne2 Bh4 Qg8 Kh6 Neg1 Rc4 Bcb1 Rfe4 f4 Qe1 f1R Bc2 Bf2 Bbe7 f3 Qa5 Qg4 Qa6 Rc3 Ba4 Rb3 Qa5 Bc6 Qe1 Bc5 b7+ Kd7 Bb6 f2 Qd1 Bc2 Qa1 Bd1 Ba7 Bf3 Bb6 Rd8 b8N+ Kc8 Na6 Bb7 Red4 Bfc6 Re4 Rf8 Ba7 Rf4 Bb6 Rb1 Ba7 f1N Bb6 Bf2 Nac5 Be3 Ne6 Bc5 Ba5 Ba6 Be1 Rb8 Bf2 Bab7 Rc1 Bad5 Ng5 Bf7 Ne6 Bbd4 Rc2 Rb3 Rc4 Bb2
5N2/R1Kqn3/2nnrb2/2N2Brp/qB3n2/2RbnBkP/3rP3/RB1QR3 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 g4 fxg4 a4 e5 axb5 exd4 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf4 a5 c4 h5 b6 g5+ Kg3 Kf5 f4 d3 c6 d2 c5 a4 b7 a3 c7 a2 c6 d4 Qe1 d1N Ba3 d3 Nd2 Ra6 Nb3 d2 Nf3 Nc3 Ne5 d1N Bg2 Nb5 Nd7 Be7 Nbc5 Bf6 Nf8 Ne3 Bb4 Qe8 Qd1 Nd6 Re1 Ne7 Bf3 Bd7 c8B Rb6 c7 Nbc6 Rb1 a1Q b8R Qa4 Ra8 Be6 Bb7 Bc4 Ra1 Bd3 Ra7 Rh6 Ba6 Rb8 Bc4 Rd8 c8B+ Rd7 Ba2 Rg6 Bb1 Rh6 Kf2 g3+ Kg1 g2 Kf2 g1N Kg3 g4 h3 Rg6 Bh1 Nf3 Bg2 Nfd4 Bd5 Ne6 Bf3 Rd8 Bd7 Bb2 Bc8 Kf6 f5 Ke5 f6 Nf4 f7 Re6 Nh7 Kf5 f8R+ Bf6 Rf7 Neg6 Rfc7 Nge7 Nf8 Kg5 Kf2 Kh4 Bd7 Re4 Bf5 Re6 Bd5 g3+ Kf3 g2 Rc8 g1R Bde4 Nfg6 Bd5 Nh8 Kf4 Rg5 Bf3 Qb3 R7a3 Qa4 Rc3 Rd7 Ra8 Rd8 Ra7 Rd7 B3g4 Nhg6+ Kf3 Ndc8 Be4 Bc4 Bgf5 Rd2 Bd5 Nf4 Bde4 Bb5 Bd5 Ne5+ Ke4 Bd3+ Kd4 Nd6 Bf3 Bh8 Nb7 Bg7 Kc5 N5c6 Kb6 Bf6 Kc7 Kg3 Nc5 Qd7+
2B5/1Rb1kqq1/R3bnRN/b1R3pB/r2N1rPP/r1K5/BQ2r1Bn/3r4 w - - 0 1 illegal: No possible last move
K1n1b3/R1Nnrk1B/1NB3qb/1q2PnR1/5Bq1/pn2RP1R/2n3rB/2Q5 w - - 0 1 illegal: No proof kernel
RrkBB3/2N2Qn1/2n3P1/6P1/p3KN1q/Br1nNNBr/2n1n3/2b1Rbq1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 g6 f5 Kf2 d5 Kf3 Kd7 e4 h5 b4 a5 c4 a4 g4 h4 c5 h3 e5 h2 b6 d3 b7 d4 b5 d2 b6 d3 Bg2 Nf6 Na3 Bh6 Qe1 d1N Qf1 d2 Nc2 Ne8 Ba3 Nc3 Rd1 Qg5 c6+ Kd8 e6 Ng7 Rc1 d1N Bh3 Ne2 e7+ Ke8 c7 Kd7 e8N Nf2 Rb1 Nc6 b8B Qh4 b7 Ra6 Rb5 Rb6 Ra5 Rb4 Ra8 Rb3+ Kg2 Rg8 Ba7 Nd3 b8B Ndc1 Bf2 Rh8 Bg3 f3+ Kf2 Bd2 Ba7 f4 Bb6 Be3+ Ke1 f2+ Kd1 Bd4 Kd2 Nd3 Ba5 Bb2 g5+ Ne6 Bg4 Rg8 Bb6 f3 Ke3 Bc1+ Ke4 Ned4 Qe1 f1Q Ne3 Nc2 Qf2 Qe1 Qf1 f2 Ba5 Ndb4 Bb6 Ba6 c8N Be2 Bbc7 Nd3 Ne7 Rf8 N7d5 Qd1 Nd6 Rfb8 Nb5 Kc8 Bd8 Qe1 Nbc7 Qd1 Nf3 Qe1 Rg1 h1R Nd2 Rh3 Rh1 Kb7 Rg1 Ng7 Rh1 Qh6 Bd7 Qh4+ Bf4 Qd1 Be8 Kc8 Rg1 Ndb4 Rh1 Ba6 Qc4 f1N Nf3 Qde1 Nf6 Qd1 Qf7 Be2 Nh5 Nd3 Kd5 Ng3 Rf1 N3f5 Bg3 Nfd4 Nf4 Qe1 Ke4 Qd1 Rf2 Qg1 Rg2 Bf1 Re2 Qh8 Re1 Ne2 Ng4 Qh6 Ne3 Qh4
n2rq1nK/k1n4b/5Pq1/1PRRq1q1/4BpR1/1NN1rN2/1q1B1b1N/5QR1 w - - 0 1 illegal: No proof kernel
4K3/Nn1RB2N/bk3p2/4qRnQ/R2nPPq1/4b1Br/R1n2B1r/4nB1r w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 hxg4 a4 e5 axb5 exd4 Kd2 a5 Kd3 d5 f4 Kd7 h4 Kc7 c4 g5 e4 g3 c6 g2 h5 a4 c5 a3 h6 a2 h7 g4 Bd2 g3 Nh3 g1N Qh5 g2 Be1 Qd6 Na3 Ne2 Bg3 g1N Ng5 Na6 Rh2 Nf3 Rd1 a1N b6+ Kd8 b7 Kc7 Rg2 Nc2 Ra1 Nh6 b8B+ Kd8 Rd1 Qe5 Ba7 Kc7 Rd2 Rb8 Rd1 Rb2 Nb5+ Kd8 Rd2 f6 c7+ Kd7 Rd1 Bb7 c8R Nf7 Ra8 Kc6 Bb6 Bd6 Ra7 Bb8 Ra1 Bc8 Rd7 Ba7 Ra4 Bb7 Ba5 Bc8 Bae1 Bb6 Bef2 Nfe1+ Kd2 d3 Rh2 Re8 h8B d4 Bg7 Rh8 Nh7 Ng5 Bf8 Ra2 Be7 Ba7 Nc7 Kb7 c6+ Kb6 Rg2 Nc5 Nb5 Ba6 c7 Nb7 c8R Ra3 Rc5 Ra2 Kd1 d2 Rh2 Ng1 Rcd5 Ng1f3 Ke2 d1R Rc5 Qe6 Rf5 Qe5 Bh4 Rc1 Bfg3 d3+ Kf2 Na1+ Ke3 d2 Bf2 d1Q Bhg3 Nd4 Rg2 Qg4 Rh2 Nef3 Kd3 Rd1+ Kc4 Ne1 Rg2 Qc7+ Kd5 Nac2 Rh2 Bb8 Na7 Rd3 Bh4 Rh3 Bhg3 Qc3 Rg2 Bd6 Rh2 Ba3 Rg2 Bc1 Rh2 Be3 Rg2 Nd8 Kd6 Qa1 Rh2 Qb2 Rg2 Nb7+ Kd5 Nc5 Bg1 Rh1 Kd6 Ndf3 Nf8 Na1 Qe8 Qb5 Rc7 R8h5 Nh7 R5h4 Qh5 R4h3 Rd2 Qa5 Rf2 Nb7+ Kd7 Qc5 Ke8 Nd4 Rd7 Qe5 Rd2 Rc2 Rh2 Rc7 Rha2 Rc2 Nf8 Rf2 Nh7 Rfh2 B1f2 Nac2
BRR3nN/3R2bq/b1pR2n1/1B2Bn1k/Pn3B1n/2q5/6rP/1KrNQ2b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 d4 g5 Kd2 f5 Kc2 Kf7 a4 b5 e4 f3 d6 f2 d5 b3+ Kb2 g4 h6 Kg6 e5 g3 h7 b4 d7 f4 e6 f3 d6 g2 e7 Kh5 Qe2 Nc6 Qc4 Bg7+ Qd4 Ne5 e8B+ Ng6 Bf7 Ba6 Be2 f1N Bd1 Ne3 Be8 Rc8 Nc3 Nd5 Nh3 g1N Bf4 Qf6 Kb1 b2 d8R Qe5 Bb3 f2 d7 f1N Qe4 Nf3 Qe1 Nfe3 Nd1 Qc3 Ng5 Nf5 Nf7 N3h4 Bc4 Rb8 Bb5 c6 Rc8 Rb7 d8R Re7 Rb8 Re2 Bd7 Rc2 Bc8 Nfh6 Ka2 N6f5 Bb7 b3+ Ka3 b1B Rdc8 Qf3 Ba8 Nb4 Rf1 Qd3 Rf3 Qc4 Rd3 b2 Rd7 Ba2 Rd6 b1Q Rd7 Qd4 Rd6 Bd5 Ra2 Rc4 Rd2 Bh1 Rd7 Qe5 R2d6 Qbe4 Kb3 Rc3+ Kb2 Rc2+ Kb1 Qc3 Qf2 N8e7 Qe3 Rd8 h8B Ng8 Qe1 Re8 Ne5 Qed3 Nf7 Ree2 Rbb7 Rg2 Rbb8 Bf8 Bf6 Bg7 Nh8 Nfe7 Nf2 Ne5 Qg1 Qh7 Qe1 Nef5 Nd1 Neg6 B6e5 Rc1+
1K1q1B1q/P3r2p/N1R2BP1/6rb/R5bQ/BnRb4/3bB1nR/Nkq3b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 b5 f4 c6 a4 b3 d4+ Kb4 g4 b2 f6 h3 f7 c5 g5 h2 a5 c4 a6 c3 f5 c2 d6 Kb3 g6 b4 d5 Nh6 f6 Nf5 d7 Ne3 d6 Ng2 Nc3 b1Q Be2 Qb2 Ra4 Nc6+ Ke6 Ra7 Qd4 Na5 Nf3 Rg8 Ke5 Rg7 Nd5 e6 Bg5 c1Q Nc7 Kc2 Ne1+ Kb1 Nc2 b3 Na1 Qc3 Bh4 b2 Bg5 Be7 f8B Nb3 f7 Rb7 a7 Rb5+ Ke4 e5 Bf6 Rd5 Na6 Ra5 Kf5 e4+ Ke6 e3 Qh4 Rg5 Nc5 Qda5 Na6 Bd8 B8e7 Bb6 f8B Bc5 Bh5 Qd8 Be2 Rg3 Kd5 Rg5+ Kc6 Rf7 Rd1 h1B Rd3 Qe5 Rc3 Qd4 Bh6 Qh8 d8R Bg4 d7 Bb6 Bc5 Re7 Kb7 Qd3 Kb8 Qd5 Bb5 e2 Rc8 e1B d8R Bd2 Ba3 Bg1 R8c6 Qd3 Rdc8 Qdd8 Be2 Ne3 Rd3 Bd7 Rcc3 Bf3 Bhg7 Bh5 Bf8 Ng2 Rh3 Bdg4 Rh2 Ka2 Rd4 b1B Rb4 Bd3 Ra4 Qd4 R8c7 Kb1 R7c6 Qd8+
r2R2KR/2N1b2n/5n2/B1q5/n1BnBQ2/2pq1P2/2PRbk1N/b1Rr1Bq1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 h5 b4 c5 b6 a5 b5 e3 g4+ Kf4 e6 h3 f3 Kg3 g5 h4 e7 e2 e8B e1Q b7 a4 b6 a3 g6 c4 g7 c3 Qd3 a2 Ba3 h2 Qh7 h3 Bg6 Be7 Bgd3 Nc6 b8R Ba6 b7 Qf2 Qh5 Nd4 Be4 Be2 Qf5 Nf6+ Ke5 d5 g8B Rh5 Nd2 Nh7 Rc1 a1B Bb4 Qe3 Ba5 Kf2 Be6 Qf8 Bf7 Qd3 Rd8 Rh6 b8R Rd6 Rd7 Qc8 Qf4 Qc5 Be8 Rb6 Bf7 Rb1 Re1 Rd1 Rbd8 Nc6+ Kf5 d4+ Ke6 Qdb5 Bh5 d3 Kf7 Nd4 Kg8 Qbc4+ Bf7 Q4d5 Nc4 d2 Ne3 Qdc4 Bfd5 Qd3 Bb3 Rb1 Rd6 d1N Nd5 Nb2 Bc4 Rd1 Nc7 Na4 Rd7 Rd2 Rc1 Rd1 Rd6 Ke1 Rh6 Ng5 Rb1 Rc1 Rh8 Nh7 Bg2 Bf1 Ne2 Rd1 Rg1 h1Q Ng3 h2 Bh3 Qg2 Rc1 h1N Bd7 Qh2 Bh3 Nf2 Rg2 Ng4 Rd2 Be2 Nf1 Qg1 Nh2 Kf2 Bf1 Ngf6+
1qQ5/1r1B2B1/3kn1RN/1R2b2K/PqB1bR2/pN3B2/1bP1n1r1/n4brR w - - 0 1 illegal: No proof kernel
1N1R1rn1/1N4nq/1Bq1q1N1/K1Bn1BQP/1P1B1bn1/rb3R1p/3k4/b3N3 w - - 0 1 illegal: No proof kernel
1rK1n3/N4q1r/6N1/B1bBP1pP/bnQ5/1n2RnB1/kNB2N2/3r1Rqb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 a5 e4+ d3 h4 g5 b6 a4 h6 a3 h7 f6 b5 f3 h5 a2 b7 f2 b6 Kb4 c4 d2 c5 Be7 c6 Qe8 c7 Qf7 Qg4 Kb3 Na3 d1R Nh3 Na6 b8N Bb7 c8B d5 Bd2 d4 Bd3 f1Q+ Nf2 Qg1 Rh3 Nb4 Nc6 Rb8 Na7 Bc5 Re3 Kb2 Rc1 a1N Be6 Nb3 Nc4+ Ka2 Bc2 d3 Nb2 Bd5 Be1 d2 b7 Bc6 e5 Bh1 Rb1 Rc1 Qc4 d1B Be4 Bc2 Bd5 Rd1 Bd3 Qf8 Ke6 f5 Kd7 f4 Kc7 f3 Bg6 Nf6 Bf5 Rd8 b8B Ne8+ Kb7 Qf6 Bc7 Qf7 Bg6 Rd7 Kc8 Rf8 h8N Rg8 Ne4 f2 Ba5 f1N Bg3 Nh2 Nf2 Nf3 Bd3 Rb7 Ng6 Rg7 Rc1 Rh7 B3e4 Rd2 Rf1 Rd1 Qd4 Bd3 Bf5 Bb5 Qc4 Ba4 Bc2 Rb8+
1RN1nBRq/5K2/B1NRr2N/P1R3Q1/p2b1P1r/1q2r1r1/bb2n3/1k2qN2 w - - 0 1 illegal: No proof kernel
3r1R2/1bq1n2N/R2qP3/rRbnR1b1/3NP2n/1QN1B1p1/N1KrB3/4r2k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 h4 Ke6 b4 Kf5 e4+ Kf4 c4 Kg3 e6 a5 h5 g5 b6 f5 b5 d5 c5 f4 b7 f3 h6 a4 h7 a3 b6 d3 c6 d4 c7 a2 Bb2 f2 Qb3 Nf6 Rh5 Nd5 Qb4 Bc5 Ba3 Nc6 b8R Nce7 b7 Ra5 Bg2 f1R Bh3 Kh2 Qb3 g3 Nf3+ Kh1 Nc3 g2 Bc1 g4 Re5 g3 Bg4 g1N Bh5 Rg8 h8N Re1 Nf7 Qd6 N7g5 Rd8 Nh7 Qb6 Rb1 a1B Ra8 Qc6 b8R Bb7 c8N Qc7 Ra6 Bb2 Qb5 Nb6 Nd1 Rd6 Na7 Bba3 Rf8 Rd8 Bb2 Bab4+ Kc1 d2+ Kc2 Ba3 Nc6 d3+ Kb3 Be3 Bd4 Bg5 Be3 Bc5 Nc3 d1R Nb4 d2 Kc2 Qd7 Nh2 Qc7 Be2 Nf3 Nba2 Nh4 Rb3 Ra1 Nf3 d1Q+ Kb2 Qd4 Kc2 Qdd6 Nd4 Nbd5 Qa4 Rad1 Rb5 Rd3 Qb3 Rd2+
1rB1nN2/rR1bb3/2BP3R/bR1Q4/B1qp3n/k1Bn1R2/PNq2b1K/5q2 w - - 0 1 illegal: No proof kernel
8/1BN1r1b1/Q1P1Rp2/2NN1k2/B4Bbr/1nb1n2B/n3qP1K/NR2q1rr w - - 0 1 illegal: No possible last move, all moves rejected
1RBRb1R1/q3b1B1/Pbqr2KP/rp2r1b1/7k/N2n4/2B1nq1N/3RB1Q1 w - - 0 1 illegal: No possible last move
bn1Q1q1k/KBB4N/P1P2bBn/n5R1/r1Nr2N1/1N1b2q1/3qp2n/5B1R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 Kg7 Kc4 h5 Kb5 e5 a4 d5 g4 d3 f4 d4 c4 b3 c5 d2 c6 e4 g6 e3 g5 d3 a5 b2 Na3 b1B Nf3 h4 Nd4 h3 Nb3 e2 Nc4 Rh4 f6+ Kh8 f5 h2 f7 Bg7 f8N Bf6 Nd7 Qf8 Kb6 Rd4 Nde5 Nh6 Ng4 Bc2 Rg1 h1N Rg3 Nf2 g7+ Kh7 g8B+ Kh8 g6 Bb1 Qc2 d1Q Be6 d2 Qd3 Qe1 Ba3 d1Q Bd6 Qdd2 g7+ Kh7 g8B+ Kh8 Bc7 Bc2 Qc3 Bd3 Bgf7 Ra7 Bg6 Ra8 Nge3 Nfg4 Bd7 Nh2 Rg5 Qf2 Ng4 Qg3 Qb4 Ra7 Qe7 Ra8 Qd8 Ra6+ Kb5 b6 Be6 Bb7 Bc8 Ba8 Bb7 Be7 f6 Ra7 f7 Bf6 Bg2 Ra6 Rh1 Ra7 Na1 Ra6 Bf1 Ra7 Ka4 b5+ Kb3 b4 Ka4 b3 Kb5 b2 Kb6 b1N Nb3 Qg8 f8N Na3 Nh7 Qf8 Nge3 Nb5 Ng4 Nd6 Bc8 Nb7 a6 Na5 Bf4 Rc7 Bb7 Re7 Ka7 Ree4 Bc7 Rf4 Nd6 Ra4 Nc4 Rd4
5N1r/3BP1R1/1k1nBrPB/6nQ/qp1brnb1/2N1q1n1/6BR/2KRR1b1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 g4 b5 a4 f5 e4 c5 g6 Kc7 e5 b3 g7 b2 d6+ Kb6 g5 b4 d7 h4 g6 h3 e6 h2 d5 f3 d6 f2 Ra3 c4 Rd3 f4 Qf3 c3+ Kd1 c2+ Kd2 Na6 Rb3 Nc5 Be2 f1Q Nc3 Qg5 d8R Ne7 g8B Bg7 d7 Nd5 Qh5 Bd4 Bb5 Nb7 Nf3 Nd6 Ne5 b1R e7 Ra6 Rg1 h1N Be6 Nf2 Rg8 Nh3 d8R Qh6 Rd7 Ng5 Rb2 f3 Rg7 f2 Ra2 Qg2 Re1 Nf4 Rd8 Qa8 Bbd7 Bb7 Rb2 Bf3 Ra2 Bg4 a5+ Ka7 Rb2 Qc6 Ra2 Qa4 Rb2 Rc6 a6 Kb6 a7 Ra1 a8B Ra3 Nd1 Re3 Nc3 Re4 Bc8 Kc7 Nd7 Ra6 Nf8 Kb6 Qh2 Qh3 Bcd7 Qf3 Qh5 Qg3 Ra2 Qh3 Ba3 f1N+ Kc1 Ng3 Bac6 Re5 Bg2 Re4 Kb2 c1B+ Kb1 Bd2 Bc1 B2e3 Bd2 Ra5 Kc1 Rf5 Rc2 Rf6 Ra2 Nd5 Rb2 Bg1 Rc2 Nf3 Bh6 Nf4 Rd2 Ng5 Rdd1 Qc6 Ra8 Qb5 Ra2 Qa4 Bh1 Qf1 Rh2 Qe2 Bg2 Qe3+
1q2R1Nn/N2qP3/4p3/2B1bN1R/2k2r1q/1q1R1bQ1/rr1K1PB1/1n2N1bR w - - 0 1 illegal: No possible last move, all moves rejected
1n2QB2/3NP2B/rPkn2Kr/1p5R/1rrR1BB1/2bR1b2/q7/2qbn1RN w - - 0 1 illegal: No possible last move
NR1qq3/nnp4R/2P5/1N1rR1q1/5bBR/2rbQn2/K1NnP1N1/B1r2k2 w - - 0 1 legal: proof: g4 e5 h4 b5 d4 f6 dxe5 b4 g5 fxg5 a3 gxh4 axb4 h3 b5 Qf6 Be3 Qh4 Bc1 Qd8 Kd2 Kf7 Kc3 Kg6 Kb3 Kh5 f4 Kg4 c4 Kg3 c5 Kf2 b6 a5 c6 h5 f5 d5 f6 g5 e6 d4 f7 h2 e7 h4 e8N d3 b7 h3 Ng7 a4+ Ka2 d2 b4 a3 b5 g4 b6 g3 Qc2 d1Q Nf5 g2 Bd2 Nd7 b8N Qe8 b7 Rh5 Ng7 Ne7 Bb4 Rd5 Qc1 Nc5 Nc3 Bf5 Ne6 Bd3 Nb5 Bh6 f8R+ Bf4 Ned4 Nc8 Rf5 Na7 Ngf3 g1N Ne1 Nf3 Nd7 Rd8 b8R Nb7 Ndc2 Qd2 Kb3 a2 Re5 Qd1 Rb1 a1N+ Ka2 Nb3 Bc3 Nbd2 Ng2 Rc5 Ba1 Rc3 Nb6 Rd5 Qa3 Qc1 Na8 Qd8 Rg1 h1R Rb4 h2 Rbe4 Bg5 Rh4 Bf4 Nge1 Qe8 Bh3 Qd8 Rg2+ Kf1 Bg4 Rg1 Qe7 h1Q Rgh2 Qe8 Rh7 Qd1 R2h5 Qh4 Ng2 Qg5 Qc5 Qe1 Rh3 Qeh4 Qe3 Qgd8 Qc5 Qhh5 Rh4 Qhg5 Qa3 Kf2 Qe7 Rc1 Qc5+ Kf1 Qb6 Nc4 Qe3 Ncd2
2B1rR2/PK2Bp2/Nn1R1nN1/Qb1N1qB1/5n1N/q5k1/n3P1r1/bbr4B w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 b5 a4 h5 d4 c5 g4 h4 g6 h3 g7 h2 g5 f3 g6 b3 a5 c4 a6 f2 a7 b4 Ra6+ Nc6 Nc3 b2 Bh3 f1Q Nf3 b1R Nh4 b3 Bg5 b2 Qd2 Bb7 Bc8 Qa5 Qe1 Ne7 g8B Bg7 Bh7 Rg8 Rg1 Be5 g7 h1N Bhf5 Re8 g8N Ng6 Ne7 Nf4 Neg6 Qa3 Bg4 Rc1 Bf3 Qh3 Rb6 Ba6 Rb8 Nd8 Qd2 Bb5 Rd1 Nde6 Bg2 Kc7 d6+ Kc6 d7 Kd6 d8B Nf8 d5 Nd7 Qe1 b1B+ Rd3 Nb6 Bde7+ Kc7 d6+ Kc6 d7 Ng3+ Kf3 Qf5 Nd5 c3 Bh1 c2 Qa5 Ne4 Ke3 Ba1 Kf3 Qd6 d8N+ Kc5 Rd4 Nf6 Nb7+ Kc6 Rd3 Qa3 Nc5 Rg8 Na6 Re8 Bb7+ Kd7 Rc8 Ke6 Ke3 Rg8 Rf8 Re8 Kf3 Rd1 Ke3 c1N Kf3 Na2 Ke3 Nc3 Kd4 Rc1 Rd1 Qb2 Kc5 Rg7 Nh8 Ke5 Bc8 Rg8 Ndb4 Qa3 Rd6 Bc4 Kc6+ Bb5+ Kc7 Na2+ Kb7 Rg7 Nd5 Rg6 Bh6 Rg2 Bg5 Ke4 Ndc7 Ke3 N8g6 Kf2 Nd5 Kg3
1K1r2NN/p1BN4/B3P1rQ/1N6/R1nb1n2/B2bRP2/bq1b3b/n2B1k1b w - - 0 1 illegal: No possible last move, all moves rejected
1rr2R2/1RN2B2/2bN2Qb/1P1Pnq2/p2BBr1B/1R2b3/b1b3r1/2k1KnR1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 a5 g6 h5 b6 f3 g7 a4 b7 f2+ Kd2 h3 b5 h2 Bb2 h4 Qe2 h3 Qe3 c4 Ra3 c3+ Ke2 c2 Ra2 c1B Nf3 f4 Qb3 Nc6 b8R Qg5 Qd3 Be6 Bc3 Nf6 g8B Be3 Rb6 Qf5 Bf7 Rb8 Ra3 Nh5 Nbd2 Bh6 Bg2 f1R Rb3 Rhc8 Ng5 Rg1 Rb7 Ne5 Bf3 Rg3 Rg1 h1B Ke1 h2 Bg2 f3 Ba1 Bd7 Ne6 Bc6 Nc7 Rg5 Bc3 Ng3 Qc2 Nf1 Nc4+ Kd7 d6 f2+ Ke2 Rg4 d5 Rf4 Bf3 Bg2 Ba1 h1R Bd4 Rh2 Qb1 Bh3 Bh1 Rg2 Qd3 Kd8 d7 Ke7 Nd6 Kf6 Qb1 Kg5 d8B+ Kg4 Kd1 Kf3 Bh4 Bg4 Qc2 Bh5 Qb1 Bg6 Qd3 Ng4 e5 Bh7 e6 Ne5 e7 Bg6 Kc2 Bh7 Qe4+ Ke2 e8R Ke1 Kc3 Kd1 Rg8 Kc1 Rf8 Nd7 Kd3 Ne5+ Ke2 Qg5 Qf3 Bc2 Qh5 Qf5 Qg6 Rh2 Rg5 Rg2 Rg3 Nh2 Rg4 f1B+ Ke1 Bc4 Rg5 Nf1 Rg4 Rgf2 Rg1 Rh2 Be4 Rg2 Rd3 Ba2 Rc3 Ng4 Rb3 Ne5
1k1Nrrr1/1Nb3nR/2B1P3/1nBb1rKn/p5QB/4n2R/1P4r1/2NqBN2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Kg4 c5 d4 Kc7+ Kh5 f5 g4 h3 e4 c4 e5 a4 g5 c3 g6 h2 e6 c2 g7 f3 Qe1 f2 Qd1 f4 Qd2 f3 Qg5 Na6 b6+ Kb8 b7 Bd6 Ra3 Nh6 g8N Nc7 Ne2 Nf5 Bg2 f1R Nd2 f2 Rh3 Nb5 Qg4 Bc7 Ne7 Ng7+ Kg5 h5 d6 h4 d5 Rf8 d7 Rg1 d6 f1N Bf3 Ne3 Bc6 Rg2 Nf1 Re8 Bd2 c1R Be1 Rc5+ Kh6 Rf5 Nc1 Rff8 Nf5 Ra5 N5g3 Ra8 Ne4 Rf5 Nc5 Ref8 Rg1 h1N Kg6 Ng3 Rgh1 N3h5 R1h2 Qe7 d8B Qd7 Be7 Qd8 d7 Re8 Rh1 Rff8 Kg5 Rg8 Rf3 h3 Bh4 h2 Rh3 Ref8 Be1 Qe8 d8N Qd7 Bd6 Ra5 Bdg3 Qd1 Bh4 Bd7 Bf3 Bc6 Be4 Ka7 b8B+ Ka8 Ba7 Bd5 Bb6 Kb8 Ncb7 Ra8 Bc5 Re8 Rg1 h1R Bf3 Rhh2 Rh1 Rf2 Be4 Rhg2 R1h2 Bc4 Bc6 Bd5 Bg3 Nf4 Rh7 Nfh5 Bh4 Rff8 Rh3 Ra6 Bd7 Rd6 Bc6 Rd7 Nd6 Rdf7 N6b7 Rf5+
4q2r/2r4r/RpN1P1K1/5NR1/rP1rrk2/RBb1bq2/QNN1n3/B2n2R1 w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 b6 a6 Bb7 axb7 Qd7 Kf2 Qe7 Ke1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd3 Ke5 b4 a5 g4 h5 e4 c5 d6 a4 d7 a3 g5 h3 g6 a2 g7 c4+ Ke2 c3 Kd3 f3 Qb3 h2 Nh3 c2 Ke3 f2 Bc4 f1Q Nf2 h4 Nd1 h3 Nb2 Ra4 Na3 Nh6 g8R Nc6 b8R Qe8 d8N Nd4 Nb7 Ne2 Rhg1 h1R Nd6 h2 Ra8 f4+ Kd3 f3 R8g5+ Kf4 e5 f2 e6 Bg7 Ra6 Ng4 Nf5 Ne3 Bd5 Bh6 Bc4 Ra5 Qa4 Nd1 Bb3 Ng3+ Kd4 Re5 Qa5 Re4+ Kd5 Qe2 d4+ Qe3 Kd6 f1R d5 Ne2 Bd2 c1B Nc2 Bg7 Bc3 Qf3 Bf6 Be3 Bd4 Qg6 Ke7 Re1 Bc3 Rd4 d6 Rc8 d7 Rc7 Qa4 Bf6+ Kf8 Qgh5 Kg8 Qe8+ Kh7 Bg7 d8N Bh8+ Kh6 Be5 Rb1 a1R Nc6 Bf6 Qa5 Ra4 Ra1 Ra3 Ng7 Ng3 Nd8 Bf2 Ba4 Rdd7 Nc6 Re4 Bb3 Be3 Nc4 Ne2 Nf5 Rd5 Bb2 Bc3 Ra2 Rdd4 Ba1 Re5 Nb2 Ree4 Bd5 Bc1 Qa4 Be3 Qb3 Ra4 Ra3 Qc8 Qa2 Qe8 R1g2 Rg1 Bb3 h1R+ Rh5 Rh4 Rg3 Rgh1 Rg1 Rf7 Kg6 Rc7+ Kf6 R1h2 Rhg5 R2h3 Ra8 Rh8 Ra6 Qa8 Kg6 R3h7 R5g3 Qc8 Rg5 Qe8+
Nb2KR2/1qBP3B/Pn3pb1/nBn2Q1B/1n3N2/N6n/b4Nbk/1r2R2r w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 c5 a4 b5 g4 b3 e3 b2 a5 b4 g6 f3 g7 h4 g5 h3 g6 f2 a6 b3 Bd3 f1N Qf3 h2 Qf5 c4 Nh3 c3 Na3 b1B Nf2 c2 Bb5 Ne7 g8B b2 g7 Nd7 Bh7 Nb6 g8B Qd7 Bg6 Rb8 Bh5 Bb7 Bh7 Nd2+ Kf4 Bg7 Kg5 Nb3 e4 Nc5 Bf4+ Be5 Rg1 Ba2 Rae1 c1N Bg3 Bf4+ Kf6 h1N e5+ Kc7 e6 Kd6 Kg7 Nc6 e7 b1B Kf6 Nb4 Bh2 Nca4 Rg8 Nc5 Rf8 N1b3 Bg3 Be4 Kg7 Na5 e8N+ Ke7 Nc7 Kd6 Kf6 Bc6 Na8 Qb7 Nd1 Nf2 Kg7 Nh3 Nf2 Ke7 Bh2 Bg5 Bc7 Bf4 Qf6+ Kd7 d6 Bh2 Qf4 Ke6 d7 Kd5 d8N Bg6 Ne6 Bg3 Bd8 Bh2 Qg5+ Kd6 Nf4 Bg2 d5 Bg3 Ne2 Bf4 Qg4 Ke5 d6 Bg3 Qd7 Bh2 Bc7 Bg3 Nd4+ Kf4 Qe6 Bh2 Qf5+ Kg3 Kf6 Bg1 Ke7 Kh2 Nd3 Bf2 d7+ Bg3 Ne2 Rc8 Bg4 Nf4 Bb8 Ncb3 Bh5 Rc1 Ke8 Nc5 Bg8 Rb1 Bg4 Rh5 Bh7 Rh4 Ng1 Kh1 Bh5 Rh2 Be5 Nh3 Ne2+ Bf1 Ba1 Bb8 Nf2+ Kg2 Bd4 Rh1 Nf4+ Kh2 Be5 Bg2 Bc7 f6+
b1R2R1n/RrBp1rP1/b1BK2N1/3P3Q/R1b1r2n/B2bk1r1/r2N4/B1q5 w - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 a5 e4 c5+ Kc4 Ke5 g4 h5 b7 h3 b6 f3 g5 Kf4 Kd5 h4 g6 a4 g7 f2 b5 h2 e5 h3 e6 c4 e7 c3 e8R c2 Re1 a3 Be2 f1R Kd6 a2 Nf3 Qc7+ Kd5 Ra3 Nd4 Nh6 Rg1 h1B+ Rg2 h2 Bd3 Nf7 Qh5 Nc6 b8R Ba6 b7 Nce5 b6 Ng6 Nf3 Re8 Nh4 Nfh8 Be4 Rg3 Ba3 c1R d4 Rc2 Nd2 Rb2 Rec1 Ke3 Bf3 Re4 Rf8 f4 b8B Rb4 b7 Rb3 Rcb1 Qc1 Bc7 Rb6 b8B Rb7 Rg1 Bd3 Bg2 f3 Rb4 f2 Ra4 Ba6 Bf3 Bg2 Be5 h1B Kd6 Bh3 Rc8 Be6 Bc7 Bec4 Bf6 Ne5 Bg2 Nf3 Ng6 Nh4 Rf8 Qb2 Rc1 a1R Rc2 Qc1 Ra2 Re5 Bc6 Re4 Rc2 Ra2 Rg2 Rh3 Rg5 Rg3 Rga5 Rd1 Be5 f1B Rc3+ Bfd3 Rc2 Bab5 Ra7 Rf1 Rc3 Rf7 Rc2 Bf3 d5 Bfe2 Ba1 Ba6 Ra5 Bd1 Rc3 Ba4 Rc2 Ba4b5 Ra4 Rg5 Bb8 Rc7 Bb7 Bc6 Bc8 Ba8 Bb7 Bb3 Rc5 Rg3 Rc3 Rc8 Rc7 Rce8 Bc6 Rb4 Rc8 Rb7 Bc7 Bbc4 Kc5 Re5 Kd6 Re4
n3b2r/NBn3p1/BQK3bk/2B2rN1/n1qR2PP/1rN5/b1r1R2n/2NB4 w - - 0 1 illegal: No proof kernel
B7/1NNp1N2/1rBq1bR1/2rPnkrB/KN1Rn3/6Qr/b2P4/2bB1n1n w - - 0 1 illegal: No proof kernel
2bRR1nN/2B2n2/R5B1/2r3qK/P2rP1NQ/1kq2NbR/4qN1p/4rrq1 w - - 0 1 illegal: No possible last move, all moves rejected
1N1BBK2/5nR1/3QN3/1b2qp2/qr2B2B/N2R1nPr/Pbb2b2/3rrk1N w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g3 b5 g6 f5 g7 c5 d6 b3 d5 f3 d7 b2 Ke6 h4 Kf7 h3 d6 f2 Bf4 b4 Bg2 f1Q e4 h2 e5 b3 e6 Qe2 e7 Qa5 e8B Qa4 d8B Nd7 Bc7 Rb8 Bh3 Ba6 Bd8 Nh6+ Kg6 Rb4 g8N Qe5 Bd2 Kd3 Na3 b1R Bg2 b2 Nf6 c4 Nh3 c3 Bd5 Be7 Kg7 c2 Bc3+ Ke3 Be4 c1B Nf2 Nf7 Re1+ Be2 Nh1 Rh3 Kg8 Bf8 Qd5 Bh6 Rd1 Bc4 Rd3+ Ke2 Bd2 Bb5 Bg5 Be3 Bh4 Rd1 Rc1 b1B Rc7 Bg7 Ra7 Bf2 Qc5 Nf8 d7 Nh7 Qd6 Nhg5 Rc7 Bh8 Kf8 Nf3 Ng4 Qa1 Ne5 Bc2 Nc6 Kf1 Nb8 Qe5 Qc5 Qb2 Qd6 Bfd4 Bdf6 Nh6 d8N Qc3 Rh7 Nf7 Ne6 Be3 Be7 Qc5 Beg5 Bb2 Bd8 Qe5 Rg7 Kg2 Nf2 h1R Bhe7 Rhe1 Bh4 Kf1 Nh1 Bf2
3b2R1/3N4/5B1N/pbr5/1P1K1Q1N/B2BqP2/BRNb2nn/qbnrn2k w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 b4 Ke5 g4 h5 g5 c5 b6 a5 g6 c4 g7 h3 d6 h2 d3 h4 d7 h3 b7 c3 Qe2 c2 Bd2 c1B Qe1 Nc6 b8N Nf6 g8B Ng4+ Ke2 e3 d4+ Ke4 d5 e5 d6 Nd4+ Kd1 Ba6 Bc3 Bd2 Bb5 Qe8 d8N Nb3 Kc2 e2 d7 Be7 Ra4 Rh5 Bb2 Nc1 Bbc4 Bb5 Nf7 Bd8 Nh6 Rf5 Qf1 e1N+ Kd1 Qe7 Nf3 Ng2 Rg1 h1Q Kc2 h2 Na3 Ra6 Bge6 Rd6 Bd3+ Kf4 Bec4 e4 Nh4 e3 Bb3 e2 Ba2 Bb6 d8B Qe3 Be7 Bd8 Nd7 Rfd5 Bef6 e1N+ Kb1 Re5 Nc2 Rc5 Ra3 Rd4 Rb3 Rd6 Ba3 Rdd5 Ng6+ Kf3 Rb2 Bc3 Bf5 Rd1 Qc4 Bd2 Bd3 Nh4 Rg2 Qg1 Qd4 h1B Qd6 Nh2 Rg5 Qg3 Qf4+ Kg2 Ka1 Kg1 Rg4 Be4 f3 Nhg2 Nh4 Kh1 Rg8 Qg6 Rb1 Ne2 Kb2 Qg5 Kb3 Qe5 Rb2 Bh7 Rb1 Qa1 Rb2 Be4 Nd4 Bc3 Bc4 Bb1 Nc2 Bc6 Ba6 Bd2+ Bd3 Rg5 Kc4 Nc1 N4f5 Bb5+ Kd5 Qe7 Kd4 Qe8 Nh4 Rc5 Ne3 Qe6 Nc2 Qe3+
RN1krqB1/1q1b2B1/1nP1B2n/3P4/BQN2RqN/n2n1p2/6rK/b1N3q1 w - - 0 1 illegal: No possible last move
2BB4/nNKbpnN1/1R3nBQ/brRPN3/5N2/r3P1q1/bnq1b3/3B1k2 w - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 Qd6 c3 Qxh2 c4 dxc4 Kf2 Kd7 Ke3 Ke6 Ke4 c5 b4 h5 d4 a5 g4 c3 g6 h4 e3 h3 g7 f6 g5 c2 g6 c4 b6 a4 b7 c3 b5 a3 b6 a2 Be2 Bd7 Na3 Nc6 b8N Qg3 b7 h2 Nh3 Rh5 Na6 Na7 b8N Rb5 Rb1 a1Q Nc6 Qa2 Bd2 c1N Nc2 Nd3 Ne5 Nb2 Nf4+ Kd6 Re1 h1B+ Bf3 Bg2 Nc5 Bf1 d5 f5+ Kd4 Nf6 g8B Be2 Bh7 Bg7 Qc1 Bh8 g7 Qb3 g8B Qa4+ Nb4 c2 Nfe6 f4 Bg6 Qa2 Qd1 c1N Ng7 Ncd3 Be6 Qb3 Bfg4 f3 Bc3 f2 Nb7+ Kc7 Qd2 Kb6 Rec1 f1B B4h5 Qc2 Bhg4 Nf4 Nbd3 Nh3 Nf4 Ng5 Ba5+ Ka6 Bb6 Nf7 Bd8 Bc4 Qb4 Ba2 Bd1 Be2 Bh3 Rb6 Qe1 Kb5 Qh1 Kb4 Bhf5 Rb5 Qh5 Nc8 Qg5 Ra3 Qh6 Na7 Bg4 Be8 Bc8 Bd7 Ned3+ Kb3 Ne5 Rb4+ Nc4 Ng8 Kc5 Kc3 Nca5 Kd2+ Nc4+ Ke1 Nd6 Qd3 Ngf5 Bc3 Nb7 Nf6 Ng7 Kf1 Ne5 Nc4 Rb3 Nb2 Rc2 Rc4+ Kb6 Rb4+ Kc7 Bd2 Rc6 Qc2 Rbc3 Be1 R3c5 Rb5 Rb6 Ba5
3n2r1/k1Nnq1b1/n1B1R2n/Rrrr2p1/1NB3PB/1N3N2/2q1BPQ1/1r5K w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 h3 Ba6 d5 g5 d6 cxd6 h4 d5 h5 d4 axb5 Bb7 Qd3 Bd5 Qd2 Bf7 Qd1 Bg6 hxg6 Qc8 Nh3 Qc7 Ng1 Qd8 b4 h5 g4 a5 c4 e5 b6 d5 b7 Kd7 c5 Kc6 g7 h4 Ke2 a4 Na3 d3+ Ke3 d2 Qe2 d1R Qa2 d4+ Ke2 h3 Bf4 h2 Nh3 d3+ Ke3 d2 Be2 Nd7 b8N+ Kb7 b5 Ka7 c6 Qe7 c7 Nh6 g8B Bg7 Bh7 Rg8 Rf1 h1R Nb1 a3 Qd5 a2 Na6 Rab8 c8B Rc1 Bf5 d1Q Nc7 Rc5 Re1 Qc2 Be6 Rb7 Nd2 Rb6 Rad1 a1N Ng1 Nb3 Ngf3 Nd4 Bg3 Nc6 Nb3 Nd8 Bh4 Rd6 Qc6 Rdd5 Ba6 Rg1 Ra1 Rg3 Bc4 Rg1 Re2 Rb1 Ra5 Rb2 b6+ Kb8 b7 Ka7 Rd2 Rb5 Ke2 e3 Kf1 e2+ Kg1 e1N b8N e4 Kh1 e3 Re2 Nd3 Bf5 Rbc5 Be4 Nb4 Re1 Rb5 Be2 Rbc5 Bac4+ Na6 Qa8+ Kb6 Nc6 Rb5 Bf1 e2 Nb4 Rdc5 Bc6 Rd5 Rd1 e1R Rd4 Ree5 Re4 Rdc5 Bfe2 Red5 Re6 Nb7 Qf8 Nd8 Qf4 Ka7 Qg3 Bf6 Qh3 Bg7 Qg2 Rb1+
K2B1nq1/Nr1R3Q/n2Bqp2/2n1n3/b1R3BR/1R3P1B/3r1qNP/k3q1q1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 e3 d5 Qf3 d3 Qf5 d4 Qf3 e6 Qd1 Be7 Bh3 d2+ Kf1 d3 Kg2 Rh5 Qe1 Bf6 Qd1 Bd4 exd4 Re5 Kg3 Rc5 Bf1 Rh5 Kg2 Rh8 b4 Ke7 c4 Kd6 b6 g5 b7 a5 d5 Ke5 f3 Kd4 d6 g3 d7 a4 c5 g4 b5 f6 b6 e5 c6 e4 c7 a3 Qe2 d1Q Ra2 d2 Ra1 e3 Nh3 a2 Nf4 Ne7 Qa6 e2 Ba3 e1Q Qa7 Qg8 d8B Rh7 Nc3 Na6 b8R Qdb3 Bd6 d1N Rb7 Bd7 c8B Ba4 Rd7 Nf2 b7+ Qb6 b8R Ng6 Qb7 Nd3 Nb5+ Kc4 Qe4+ Kb3 Na7 Kb2 Rc1 a1N Rc4 Re7 Rg1 Nf8 Qh7 Nb3 Rbb7 Qc6 Rb5 Qb6 Rh5 Rb8 Rh4 Nbc5 Rh1 Ka2 Kg1 Qee6 Bh3 Ne5 Ng2 Ka1 Kf1 Qb1+ Ke2 Rb2+ Ke3 Rd2 Rhc1 Rg7 R1c3 Qb6 Rb3 Qa5 Ne1 g2 Kf4 g1Q Ng2 g3 Bg4 Rf2 Ke3 Qae1+ Kd4 Rf7 Bh3 Qe8 Kd5 Rb2 Rdb7 Qgf2 Bcg4 Qe7 Rd7 Rd2+ Rd4 Ned3 Rc4 Qe8 Rb5 Q8e6+ Kc6 Ne5+ Kb6 Re7 Rb3 Rf7 Nb5 Rg7 Ka7 Re7 Ka8 Rf7 Ne3 g2 Na7 g1Q Ng2 Re7 Rc7 Re8 Rg7 Re7 Rf7 Rc7 Rd7 Rb7
2NqR1nN/1kb5/2pPr1r1/2P1r1bq/QK6/3NN2b/1b1B1R2/r2q1BBB w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h3 f5 Bc4 Nd7 Be2 Ne5 Bd3 fxg4 Bf1 g3 h4 g4 Qe2 Nf7 Qd1 Ng5 hxg5 Be6 Rh3 Bd7 Rh1 Bc8 b4 Kd7 d4 a5 Kd2 e5 Kc3 h5 f4 a4 g6 e3 d5 a3 d6 g2 b6 Kc6 b7 e2 b8N+ Kb7 f5 e1B+ Bd2 g3 b5 c6 g7 a2 f6 e4 f7 h4 b6 h3 Nd7 e3 Kb4 h2 c4 e2 Nf3 g1R Nfe5 g2 Nc3 Ka6 b7 Qe8 b8B Ra7 Nb6 Qd8 Nd3 Rh6 Ncd5 Re6 Qa4+ Kb7 Ne3 Be7 f8N Bg5 Ng6 Re5 Nh8 Bh3 Rc1 a1B Nc8 Bb2 Rc2 Beh4 Bc7 e1R Bb6 Raa5 Ba7 Re6 Bb6 Rae5 Bd4 Ra1 c5 Nh6 g8B Be1 Bh7 Ng8 Be4 Beh4 Bc1 Be1+ Kb3 Ba5 Rf2 Bc7 Kb4 Rg6 Bd2 Ree6 Be2 Rge1 Bf1 g1Q Bd5 Qg4 Rg1 Qh5 Bh1 Re5 Rgg2 Qd1 Rf8 Ree6 Rgf2 Re5 Re8 Ree6 Bf3 h1Q Bd5 Qhf3 Be4 Qh5 Bh1 Kb8 Be5 Re2 Bh2 Kb7 Bg1 Re1 Ng2 R1e5 Ne3 Bg4 Bc1 Bf5 Bd2 Bh3
4B2K/1N2N2n/2RP4/R1q1nr1p/5QnB/1Bk3B1/R2qn1rP/b2rq1Rq w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 d5 g4 fxg4 d4 c5 Bc4 Be6 Be2 cxd4 Bf1 d3 Bd2 d4 Bc1 Bd5 exd5 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 Kd7 b4 Kd6 f4 e5 c4 g5 c5+ Kd7 f5 h5 c6+ Kd6 b6 a5 b7 a4 f6 g3 b5 Kc5 c7 Kc4 c8B e4 f7 g2 b6 g4 Na3+ Kb4 Be6 g3 Ra2 Qd7 Qg4 Bg7 f8R Ra5 Qf4 Nc6 b8R Ne5 b7 Nf6 Ra8 Rg8 b8B Nh7 Ne2 g1N Rc8 g2 Nc4 a3 Nc3 Ne2 Rc6 g1Q Nd6 Qg5 Nb7 e3+ Ke1 Qd6 Rg1 d2+ Kd1 Qc7 Kc2 d1R Bd7 Qb6 Be8 Qc5 Bg2 Rb5 Ra5 Qh6 Bd6 Bf6 Bh3 Rg2 Be6 Qg5 Be7 Qh6 d6 Bg7 Ra1 a2 Bh4 Bf6 Bc4 d3+ Kb2 d2 Bb3+ Nc4+ Kc2 Bd4 Kd3 Ne5+ Ke4 Qg5 Rb1 a1Q Rb2 Qh6 Kf5 Qb1+ Ne4 Bc3 Rc2 Ba1 Rca2 Qg5+ Ke6 Qh6+ Nf6+ Kc3 Ke7 Qe4 Ng8 Qf3 Re1 Qf1 Bg3 Qh1 Rg1 Nd7 Kf7 Re1 Ra8 d1N R2a3 Nd4 Qf6 e2 Qd8 Nf2 Ra2 Rd1 Bg5 e1Q R8a5 Rb4 B5h4 Ng4 Qg5 Ne2 Ne7 Rf4+ Kg8 Nde5 Kh8 Rf1 Qf5 Qhd2 Qg5 Rf6 Qf4 Rf5
b2nr1Rb/7B/8/2krrP1p/2B1rNB1/1nr1nK2/1N2QbbP/N3BRN1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Bh3 Qg5 Bg2 exf4 Bf1 f3 Nd2 f4 Nb1 Qf5 gxf5 Kd8 Qd2 Ke7 Qd1 Ke8 Kf2 Ke7 c4 Kd6 b4 h5 e4 g5 b6 a5 b5 g4 e5+ Kc5 e6 d5 e7 d3 e8B g3+ Ke1 a4 b7 g2 Kf2 d4 b6 a3 Bd2 a2 Be2 Ra3 Bc6 Bg7 Bd5 Nf6 Bg8 Rc3 Qf1 Nd5 Be1 d2 Bh7 d1R Na3 d3 Nc2 Nc6 b8N d2 b7 Nd8 Nc6 Ne3 b8N Re8 N6b4 Bb7 Nd5 Ba8 Nc6 Bh8 Na5 Re5 Rb1 a1N Rb8 Nb3 Na1 Rb1 Bd1 Rbc1 Qd3 Re4 Be2 d1R Qc2 Rdd4 Bd1 Re5 Qe2 Rde4 Rc8+ Nc6 Rg8 Nd8 Nh3 Rd3 Rf1 Rcc3 Ng1 Rdd4 Ne7 Rdd5 Ng6 Kb4 c5 Re8 c6 Kc5 c7 R4e5 c8B Re4 Nh3 R8e5 Bd2 g1B+ Ke1 Re8 Ba6 R8e5 Nc4 Re8 Qg2 f2+ Ke2 R4e5 Kf3 Re4 Re1 f1B Qe2 Bf2 Ng1 Bh3 Rf1 R8e7 Qe1 Bc6 Ke2 R4e6 Na5 Bh4 Nc4 Re8 Nb2 Ree5 Rf2 Ba8 Bc4 Ng2+ Kf1 f3 Nf4 Bg3 Qe4 Bh4 Be1 Bg3 Re2 f2 Re3 Bh4 Bg4 Bg3 Ke2 f1R Bf2 Rfd1 Rf3+ R1d4 Be1 Bh4 Rf1 Bf2 Bd3 Rb4 Kf3 Ra4 Qe2 Ne3 Bb5 Rae4 Bc4 Bg2+
1Bq2r1K/r3n3/4Q1NR/BB4RP/2q3Pn/1RB1pR1b/3p2N1/n1bkb2r w - - 0 1 illegal: No proof kernel
1q3q2/QN1kB1n1/4RpRb/4B3/P1n3BK/B6P/RpbbrnNq/1R4r1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 g5 a4 c5 e4 b5 d4 f3 Kg3 g4 h3 c4 e5 f6 d6 f2 h6 c3 e6 b3 d5 b4 h7 c2 e7 b2 Qd3 b3 Na3 b1Q Qd4 Bh6 Ne2 Na6 Nf4 Nc7 Qa7 Ne6 Ng2 Ng7 Nb5 Bf5 Ba3 c1B Ra2 Bc2 Be2 f1N+ Kh4 g3 Bg4 Ne3 Rg1 Nc4 d7+ Kf7 e8R Bcd2 Ree1 Qf8 d6 Re8 d8B+ Re7 d7 Re2 Bc7 Qb2 d8B Ke8 Bh5+ Kd7 Rb1 Qe5 Bde7 b2 Nd6 Qb5 Nf4 Qbb8 Nb7 g2 Rge1 g1Q Ng2 Qh2 Be5 Bhe3 Rg1 Nh6 Rge1 Rg8 h8R Ng4 Rh6 Nf2 Rg6 Bh6 Bg4+ Bf5 Rec1 Nb6 Rc6 Nc4 Re6 Be4 Bc3 Bc2 Be5 Qbd8 Rg5 Bf4 Bf3 Qb8 Ne1 Bd2 Rg2 Ne8 Bh5 Rg3 Rg1 Rb3 Rg6 Rg3 Bg4 Rg1 Ng2 Ng7
N2RR1B1/rk2bnp1/4q3/3r3N/Q2R1PK1/RPqq3p/3N1BN1/bn3bn1 w - - 0 1 illegal: No proof kernel
8/3bP1RN/pn1qB2R/KN1r3B/3Npr1b/2B1qrb1/1PBq4/kN1n1Q2 w - - 0 1 illegal: No proof kernel
2K1qkBr/q1p1r2p/2nB3r/2qQbN1N/1PN4B/1RN2b2/1bPn4/1R5B w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 d5 Ke3 a5 Kf4 d4 g4 h3 b4 e3 e6 a4 Ke5 a3 f4 a2 f5 e2 e7 e1Q+ Ne2 d3 b6 d2 f6 h2 f7+ Kd7 e8N Ke7 g5 Qf2 b7 Qd7 g6 Bh6 f8B+ Kd8 g7 Nf6 g8B Qf3 Ng3 Qf2 Ng7 Qa7 Nc3 Ne4 Rb1 a1B Rb3 Bb2 N7h5 Ke8 Bd6 Nc6+ Kd5 Be3 b8N Bd4 Bg2 Be5 Nf5 Bb7 Qf3 Qe7 Nd7 d1Q+ Bd2 Rd8 Nb6 Kf8 Nc4 Qe2 Be1 Rd7 Bh4 Nd2 Rb1 h1R Qe4 Rh3 Bh1 Rh2 Nf4 Qh5 Qd3 Qe8 Nh5 Rg2 Qd4 Rg6 Qd3 Rh6 Qe4 Qa3 Kc5 Qa2 Qd5 Qa7+ Kb5 Qg1 Qc5 Ba8 Ka6 Nd8 Qa5 Bf3 Qd5 Nc6 Kb7 Qf2 Bc5 Qd6 Bf6 Re7 Bh4 Nd8+ Kc8 Qa6+ Kb8 Qa7+ Kc8 Qe3 Bd6 Qed4 Bf2 Qdc5 Bh4 Nc6#
4qN2/1PB4n/1rN2pqb/RQnbP1pk/B4R2/5n2/r5Rq/N1K1NRb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 c5 b4 g5 h4 f3 e4 f6 b6 Kf7 d6 Kg6 b5 c4 d7 a4 b7 g3 d5 f2 d6 g2 h5+ Kh6 b6 a3 Qa4 a2 Nf3 g1B Na3 Be7 Nc2 Ra7 Qb5 Bf8 Nfe1 Na6 b8R Qe8 d8N Nc5 d7 Bb7 Nc6 Ne7 d8R Ng6 Rd4 c3+ Kd1 Bg7 Bf4 Nf8 Bc7 Nh7 e5 Ra5 Bd3 f1N Kc1 Nh2 Rf4 Nf3 Be2 Qg6 Bd1 Rd8 Ra8 Rb8 Rh2 Ra6 Rb1 a1Q Rg2 Qa2 Na1 c2 Ra7 Ra3 Ra5 Qg8 Nd4 Bd5 Nc6 Ra2 b7 Re8 Ra3 Bf8 Raa4 Re6 Ra5 Kg7 h6+ Kf7 Ne7 Rb6 Nc6 Bg7 Rf2 Qe8 Rg2 Nf8 h7 Bh6 h8N+ Kg7 Rbb4 Nh7 Rba4 Qh5 Ra3 Qh2 Ng6 Kf7 Nf8 Kg7 Nd7 Kg6 Nf8+ Kh5 Rb3 Qg6 Rb1 Qe8 Nd3 Ra3 Kb2 Qe6 Be2 Qe7 Rf1 Qe8 Bd1 Ra4 Ne1 Ra2+ Kc3 c1Q+ Bc2 Qd1 Ba4 Ra3+ Kb2 Qd3 Kc1 Ra2 Bd8 Qe4 Bc7 Q4g6
5Nr1/4BnN1/KNQ3R1/bP2BqrR/1p2n1n1/pr3rB1/P2kr3/1BN2b2 w - - 0 1 illegal: No proof kernel
3rbb2/3P3N/2R1N1B1/B1BP1nQ1/1r4pb/Nr2pBk1/1KbR1n2/N2b2q1 w - - 0 1 illegal: No possible last move, all moves rejected
Bkq5/1bnr4/8/1NBRBr1n/5pbP/1pbR1n1P/KB2n2r/2QRR2N w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 h5 g3 h4 gxh4 a5 Ba3 axb4 Bb2 Bd7 Bc1 Bc8 a4 Kd7 d4 c5 Kd2 Kc7 Kc2 g5 Kb2 b5 e4 f5 h3 g4 e5 f3 d6+ Kb7 e6 b3 e7 g3 e8R f2 d5 c4 a5 g2 d7 b4 d6 Bg7+ Re5 Rh7 Na3 Na6 Nb5 Kb8 Ne2 g1N Ng3 Nc7 a6 Bb7 Bg2 Nf3 Re1 f1R Nh1 Nf6 Rd5 Qc8 d8B Nh5+ Bf6 c3+ Kb1 f4 d7 b2 d8B c2+ Ka2 Rf2 Be5 Bh8 Be3 Rd7 Qc1 Bf6 Bc5 b1B+ Kb2 Bh8 Bdf6 Ba2 Rd3 Be6 Rb1 Bg4 Ka2 Ra7 Rd5 Re2 Rb3 Rf7 Rbd3 Rf2 Bb2 Rf8 Bfe5 Rf5 Bf1 Rh2 Bg2 Ba8 Bed6 Bc3 Be5 Rb7 Red1 Rb6 Re1 Rd6 Rdd1 Rd7 R5d3 Be4 a7+ Kb7 a8R Bc6 Ra6 Kb8 Rb6+ Bb7 Rbd6 Rf6 R6d5 Rf5 Qd2 c1N+ Ka1 Ne2 Ka2 Bc6 Qc1 Bb7 Bed4 Ba6 Re5 Ng5 Ba8 Nf3 Rd5 Bb7 Be5 b3+
3n1bB1/2Bnr1r1/b1RN3r/1PB4R/1p1n1kB1/R1P3qn/Q1N2p2/1K4Rb w - - 0 1 illegal: No proof kernel
2N2rrn/3n4/BR2B1P1/BP1rBp1b/1N1R1br1/2RK3k/n3p3/1q1Q1bR1 w - - 0 1 illegal: No proof kernel
rNn5/n3q3/N2R1P1B/1rbBbNN1/1p2n3/1PpK4/B1Q1Bk1r/r3R2b w - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 Qc2 a3 Qb2 axb2 Ke2 Kf7 g4 Kf6 d4 c5 f4 h5 a4 b5 g5+ Kf7 g6+ Kf6 g7 e5 d6 h3 d5 b4 a5 e4 a6 e3 d7 c4 a7 c3 d6 h4 Nd2 b1N Kd3 e2 Ndf3 e1B Nd4 h2 Be2 h3 Ngf3 Be7 Ng5 Qc7 d8Q Rh5 d7 Nh6 g8B Bh4 Bd5 Bb7 Ra6+ Nc6 Re1 h1R Qb8 h2 d8N Bd6 N8e6 Qe7 Nc7 Bg3 Qg8 Rf1 Qh7 h1R Rb6 Bf2 Na6 Ng8 Be4 R1h2 Be3 Re8 a8B Na7 Bd5 Nd2 Be4 Bc8 Bad5 Bb7 Rc6 Ra8 Rb6 Qe6 Rc6 Be5 Rd6 Nb1 Bc1 Ne7 Bd2 Nec8 Be3 Nd2 Qg6+ Ke7 f6+ Kf8 f5 Qe7 f7 Rg1 Qe6 Kg7 f6+ Kh6 f8N Bc6 Bh7 Ne4 Nd7 Rgh1 Bc1 Bg1 Qf5 Be3 Nb5 Bc5 Ndb8 Rf1 Nd4 Bb7 Ngf3+ Rg5 Be3 Kh5 Qg6+ Kg4 Nf5 Kh3 Bc1 Rh5 Bh6 Bc6 Ng5+ Kg2 Qe8 Bb7 Qa4 Kf2 Qa2 Bc6 Qc2 Ng3 Bf7 Bh1 Bd5 Ne4 Nh4 Ng3 Qa2 Qf7 Bc6 Ne4 Rc1 Bg2 Ngf3 Qe7 Kc4 Ng3 Bb1 Bed4 Kd3 Ne4 Qc2 Bb6 Ba2 Rb5 Bd5 Bbc5 Ng5 Be5 Rb1 Bh1 Ra1 Rb1 Nf5 Rb2 Rg1 Rb1 Re1 Ra1
R1b5/N1n1R1Rr/1B3p2/2rqB1bP/2R5/nBN1p2n/r2Q2nP/k2B1b1K w - - 0 1 illegal: No proof kernel
bb5r/3QN3/1kP1P3/p1r2R1N/1bBpn3/1N1n2K1/RN1qBnB1/r3b1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kf2 a5 h4 g5 c4 f5 b4 d5 e4 Kd7 e6+ Kc6 e7 f4 e8B+ Kc7 c6 a3 h5 f3 b5 a2 e5 Bc5+ Be3 Kb6 c7 Ne7 h6 Ng8 h7 Ne7 e6 Nbc6 Rh5 Bb7 c8B Nf5 Nd2 Nb4 Ne2 Nd6 Nf4 Nd3+ Kg3 f2 Bg2 f1R Nb3 d4 Bg1 Bb4 Bed7 Be4 Ba6 Rc8 Qf3 Bb7 Qd5 Rc5 Bc6 Rc1 Bf3 Qf8 Be2 Ba8 Bcb7 Qh6 Bc6 Nf7 Qd7 Nd6 Bg2 Rf1 Rh3 Rd1 Nh5 Rf1 Rh2 Re1 Rd1 a1B Rd2 Rf1 Ra2 Bac3 Rh3 Ra1 Rh4 Re8 h8N Bd2 Ng6 Rh8 Ne7 Be1+ Kh2 g3+ Kh3 Rc6 Rf4 g4+ Kh4 Rc7 Rf5 Qd2 c5+ Ka7 Bab7 Rc6 Bd5 Rcc8 Bc4 g2+ Bf2 g1B Bg2+ Rc7 Kg3 Bh2+ Kh4 g3 b6+ Kb8 b7 Ka7 Bg1 Rcc8 b8N+ Rc7 Bgf3 g2+ Kh3 Bhg3 Nbc6+ Kb7 Ne5+ Ka7 Bh2 g1N+ Kg2 Nh3 Bg1 Nhf2 c6 Kb6 Bfd5 Rcc8 Bdf3 Rcg8 Be4 Rg5 Kf3 Nc1 Nd3 Be5 Nb2 Ncd3 Rf6 Bg3 Kg2 Rc5 Rf5 Nb5 Bed5 Bb8 Bdf3 Nd6 Kg3 Nf4 Be4 N4d3 Bg2 Nde4+
N4r2/R5bP/pn6/N1R5/p2BBNrB/1nn2r2/4P1bn/kbQ1KNBq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 bxa4 c4 d5 cxd5 exf4 d4 Ke7 b4 Kf6 h4 c5 h6 g5 h7 c4 d6 g4 d5 Ke5 h5 f5 b5 a6 b6 c3 d7 c2 b7 g3 d6 g2 h6 f3 Qd3 f4 Qd2 Ne7 Rh2 Nd5 Nh3 g1R Qd1 Rhg8 h8B+ Bg7 Nd2 Rg3 Bg2 Kd4 Nf1+ Kc3 Be3 Kb2 Rc1 Nc3 Bg1 Qh4 d8B Nd7 b8N Nb6 Nc6 Bf5 d7 Bg6 Bg5 Raf8 d8N Bd3 Na5 f2+ Kd2 f3 Nf4 Rg4 Nde6 Rf5 h7 Rgf8 Nc7 Ka2 Rb1 c1N Na8 Qh5 Rb5 Ka1 Bh4 Bb1 Rc5 R5f7 Bh1 Qh6 Rg2 Nb3+ Ke3 Qh5 Qc1 Qd5 Ng3 f1N+ Kf2 Nh2 Nf1 Bh6 Bd4 Bg7 Ke3 f2 Rg3 Rg5 Be4 Rg6 Rg5 Qc6 Rgd5 Rg4 Rd7 Rf6 Ra7 Rf5 Nd2 f1B Kf2 Bg2 Nf1 Qh6 Ke1 Qh5 Nd3 Rf3 Nf4 Qh6 Bhf6 Qh4+ Ng3 Nf1 Be7 Qh1 Bh4 Nh2 Nf1 Bh8 Ne3 Bf6 Nf1 Bg7
b2n1r2/2bp2NN/7K/BkB1nq1p/1B1RQR1r/1P1R1B2/3R3P/1n1b1r1b w - - 0 1 legal: proof: Nf3 b5 Nc3 c5 Nb1 b4 Ng1 b3 axb3 c4 Ra5 c3 Ra2 Qa5 Ra1 Qd8 d4 cxb2 g4 f5 gxf5 e5 Bh3 exd4 Bg2 Ke7 Bf1 Ke8 Kd2 a5 f4 h5 c4 g5 e4 g4 e5 a4 e6 a3 e7 d3 Ke3 g3 f6 a2 c5 d2 c6 g2 f5 Bg7 Kf4 Ba6 Kg5 Bd3 c7 Rh7 c8R Na6 Qe1 d1B Bd2 B3e2 Na3 b1B Nc4 Rh8 Ba5 Nb8 Nf3 g1N Bg2 Be4 Ne3 Nh6 Rc4 Ng4 Rd4 Nc6 Rd3 Kf7 e8R Rf8 Qb4 Bd5 Re4 Nge5 Red4 Ke8 Rb1 a1R Rb2 Qe7 Qb7 Nd8 Rbd2 Qe6 f7+ Ke7 f6+ Kd6 Nf5+ Kc5 Rf4 Bh8 Ng7 Qf5+ Kh6 Ra6 Ng5 Bef3 Rfd4 Ne2 Nh7 Nc3 Rf1 Nb1 Bh1 Bfe4 Rf4 Ra4 Qa8 Kb5 Bg2 Rc6 Bf3 Rc1 Qb7+ Kc5 Qb4+ Kc6 Qe7 Kb5 Qe6 Ba8 Qe8 Rg8 f8B Bed5 Be7 Rf8 f7 Bdb7 Bc5 Rb4 Be2 Bh1 Bf3 Rbc4 Ne6 Bf6 Ng7 Be7 Bcb4 Bd6 Qe7 Bc7 Qe6 Rh8 f8B Rg8 Bfc5 Rf8 Qg8 Bc2 Qd5 Rf1 Qe4 Bd1 Ra2 Rc2 Rb2 Rg2 Rf2 Rg4 Rfd2 Rh4
3q3n/pB1k3K/1b1n1n2/NrB1BbR1/RN1N1P2/3Qb3/4pP2/1rBrN2b w - - 0 1 illegal: No possible last move
1B2KR2/2Qb4/nR2N2b/1qpB3r/qPPN4/1N4qq/R2q2pr/1R3Nkn w - - 0 1 illegal: No possible last move, all moves rejected
3nB3/1B1Nqn1B/b2r4/Pp3Rb1/nP1pr3/3R2KN/k1n1B1nq/1RR4Q w - - 0 1 legal: proof: h4 c5 e4 a5 d4 cxd4 b3 f5 exf5 g5 hxg5 a4 Bb2 a3 Rh5 axb2 Rh2 Nf6 Rh1 Ng8 c4 Kf7 a4 d5 f4 h5 Kf2 b5 g4 e5 f6 Ke6 b4 e4 g6 h4 f7 h3 c5 e3+ Kg3 e2 c6 e1N c7 d3 g7 d4 f5+ Kd5 g5 Kc4 g6 h2 a5 Nh6 g8B Nc2 g7 Kb3 f6 d2 Be2 Ra6 Bh7 Nc6 g8B Be7 f8R+ Nf7 Na3 b1N Nc4 Nc3 Nh3 Na4 Rb1+ Ka2 Ne5 Bb7 Bg6 Rh4 c8B Re4 Nd7 Qe8 Rg1 h1Q B8h7 Ncd8 Qc1 d1N Qh6 Ng5 f7 Nde3 Rgc1 Ng2 Rg8 Rf6 f8R Rd6 Rf5 Ba6 Bb7 Qg1 Qh5 Qf8 Be8 Ngf7 Rg6 Bg5 Re6 Rh4 Re3 Re4 Rd3 Qe7 Nf2 Rd5 Qh1 Rd6 Nh3 Qh2+
5Nn1/1q6/pb1Nr2P/B1Bbp1PQ/3nR1q1/BKb3bb/1N3R2/1BNr2k1 w - - 0 1 illegal: No possible last move
6N1/NrN3B1/1r1B1rb1/3KN1q1/1R3n2/b1RPQpPn/k1Brp3/Bq2q3 w - - 0 1 illegal: No proof kernel
1R6/1Rn2K2/br1b2Nq/1NqBB1b1/2Rr1qpR/2PkBp1B/6PQ/3n2q1 w - - 0 1 legal: proof: f4 b5 d4 g5 h4 e5 fxe5 c5 a4 bxa4 h5 cxd4 Rh4 Ba6 Rh3 Bd3 Rh1 Bg6 hxg6 Qc8 Nc3 Qc7 Nb1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf3 Kf5 b4 h5 b5 a5 e3 d3 b6 h4 b7 h3 g7 h2 e6 d4 e7 d2 e8R a3 Ba6 a4 Re6 d3 Re8 a2 Re4 a3 Nh3 Ne7 g8R Rh6 Bb2 Rb6 Bf6 Nd5 Rh8 Qe7 Qg1 Nc3 Bd4 Qc5 Bc4 Nd1 Nf4 Bd6 Ng6 Ra4 Bd5 Na6 b8B Nc7 Nc3 f6 Be5 Rd4 Rb1 a1Q Nb5 a2 Ba7 Qb2 Rc8 a1B Rb8 Qbb4 c3 Bb2 Kg3 Bc1 Rh4 Qa5 Rb4 Qa4 Rc4 Qab4 Rb7 Qa4 Rh8 Qab4 Rhb8 Qa4 Bf7 Ke4 Kg4 f5+ Kh5 f4 Be6 f3 Bh3 Qab4 Kh6 Qa4 Kg7 Qab4 Kf7 Qa4 Qe1 Qab4 Qg3 Qa4 Re1 h1Q Qh2 g4 Rh8 Qg1 Rh4 Nf2 Re2 d1B Rb2 d2 Rb3 Kd3 e4 Qab4 Na3 Rc6 Rb5 Be2 Bf4 d1Q e5 Qd5+ e6 Qe4 e7 Qd2 e8B Rd5 Rb8 Nd1 Be5 Qh6 Bf2 Qc5 R3b7 Kd2 Rcb4 Ba6 Nb5 Rb6 Bc6 Kd3 Rc4 Rd4 Bd5 Bg5 Be3 Qf4+
1R5B/1R2b3/br1qn3/1B1P3B/1k1qp1Pp/b4b1N/2R1rBr1/Qn3RKN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 a4 Kd6 d4 b5 f4 h3 Kf2 h5 f6 h4 f7 e5 a5 c5 a6 h2 a7 c4 Nd2 b3 Bb2 b4 Rc1 Na6 f5 Nc5 f6 c3 Nh3 Qe7 Ba3 c2 Bb2 Rb8 Be2 Ba6 Rf1 h1B Kg1 Bf3 Ba1 b2 Ne4+ Kc7 d6+ Kc6 d7 b1Q d8R b3 Re1 b2 Bc4 Rb6 Ng3 Qd6 Nh1 Ne7 Rb8 Nd5 Rf1 Nc3 Rb7 Qa2 Be6 Kb5 d5 b1R Bd7+ Kc4 Be8 Kb4 Bb5 Rh5 Qe1 Be7 f8R Rg5 f7 Ne6 Rfb8 Rb2 Qd1 Qc4 Be8 Nb1 Qd4 Bf6 f8B Qe7 Bg7 Qd6 Bh8 Be7 Bh5 Ra2 a8B Rb2 Rd7 Ra2 Bc6 Rb2 Rce1 c1B Bb5 Rh2 Re2 Bb2 Rc2 Ba3 Bf7 Rh5 Rdb7 Rg5 Bb2 Rh5 Bc1 Rg5 Qa1 Qd4+ Be3 Rh5 Bf2 Rf5 Bh5 Rf4 Bbe8 Re4 Beg6 Re2 Be8 e4 Bb5 Rg2#
r2B1q2/2KRr2R/N2N1nBr/3Ppb2/8/kPQp3B/2n1n1B1/1q1NNrb1 w - - 0 1 illegal: No proof kernel
BR4bn/n1k1KNR1/r2rq1Q1/2p2P2/b4B2/n1P1RnN1/p4R1N/bN2q3 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 d5 Ke3 Kd7 Kd4 a5 b4 h5 f4 h3 g4 e3 b6 e2 f5 e1N b5 a4 g5 h4 b7 a3 g6 h2 b6 a2 g7 h3 Qe2 Nh6 g8N Nf7 Qa6 Bg7 Kc5 d4 Nh6 d3 Nf3 d2 Rg1 h1B Bg2 d1N Bf4 Nc3 Nh2 Nc6 b8R Qg8 b7 Na7 Qg6 Ncb5 e6+ Kd8 Rf1 Nf3 Rf2 Na3 e7+ Kd7 Kd5 c5 e8N Bb2 Nd6 Kc7 c3 Bd7 Re8 Ba4 Ke6 Rd8 N6g4 Rh6 b8R Nh8+ Ke7 Qc4 Ne4+ Rd6 Ne5 Qe6+ Kf8 Ra6 Ng3 Rd6 Nd2 Ra6 Rg1 Ba1 Nb1 Rd6 Nhf1 h2 Nf7 Ne5 Bc6 Bd5 Ba8 h1Q Nh2 Nf3 Rgg2 Qhe1 Rg1 Q6e2 Re3 Bdb3 Ke7 Be6 Ne5 Bg8 Nf7 Qc4 Rgg2 Qe6+ Kf8 Nd4 Qf6 Qe5 Ngf1 Ra6 Rg7 Nf3 Ng3 Rg6 Qg5 Rgd6 Qg6 Qd5 Ke7 Qe6+
rrNnnRq1/1n6/BR2P1qp/3k1b2/Bp1bbB1K/N1R1P3/1BR2bQ1/8 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 Kf2 Kd7 a4 c5 d4 f5 g4 b5 e3 h3 Kg3 b3 a5 h2 g5 h6 e6+ Kd6 a6 f4+ Kh4 b2 a7 f3 Nh3 c4 Nf4 f2 Ra2 b4 Qe2 c3 Ng6 c2 Na3 b1B Bb2 c1B Ne7 Nf6 g6 Bf5 g7 Ba6 g8R Ne8 Qf3 Be4 Qg2 Nc6 Rg7 Bb7 Ba6 f1Q Rg5 Rb8 a8B Qf7 Rh5 Bd2 Rc1 h1N Rc3 Bg7 Rf5 Qg6 Rf8 Bc8 B8b7 Ng3 Bb5 Ra8 B7a6 Bf5 Ba4 Be5 Bc4 Be1 Ba6 Kc7 d6+ Kb6 d5 Bb7 d7 Bf2 d6 Ne4+ Qg3 Bg1 Qg2 Qb8 d8R Bd4 d7 N4d6 Rc8 Nd8 Rc2 Rg8 R8c3 Bbe4 Ra1 N6b7 Rd1 Bc5 Rd6+ Kc7 Nc8 Rh8 Bc4 Bd4 Rb6 Rg8 Rb5 Kc6 Rb6+ Kc5 Bf1+ Kd5 Ba6 Nc6 d8B Rh8 Bg5 Ncd8 Rb5+ Nc5 Bf4 Ng7 Rf6 Nc6 Rb6 Nb7 Nd6 Qf8 Qe2 Qff7 Nac4 Rhb8 Na3 Ne8 Qg2 Qfg8 Nc8 Ncd8 Rf8 Bf2+
1b1BNb1Q/2B2r2/n1R1pp1P/n4P1q/k1N4B/r4RK1/1b3q1N/2bq1N1B w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 hxg4 d4 c5 Bd2 Be6 Bh6 cxd4 Bc1 d3 Qe2 d4 Qd1 Bd5 exd5 Rh6 Nc3 Rh7 Nb1 Rh8 h4 Kd7 b4 g5 c4 a5 f4 f6 Kf2 e6 b6 d2 f5 a4 h5 d3 h6 a3 c5 a2 b7 Be7 b5 Qb6 d6 Qa6 b6 Kc6 d7 Kb5 d8B Qa7 c6 Na6 b8N Bf8 c7 Ne7 c8N Rh7 Bg2 Nc6 Kg3 Rf7 b7 Na5 Nc6 Qc5 Qc2 d1Q b8B d2 Rh3 Qe3+ Nf3 Qf2+ Kh2 Qde2 Nce5 d1Q Nbd2 Kb4 Qc5+ Ka4 Nd6 Raa7 Rb1 a1B Ne8 Bb2 Bbc7 Ra8 Nf1 g3+ Kh1 g4 Bg5 Bc1 Rb6 Ra7 Rc6 Ra8 Ng1 Bb2 Be4 g2+ Kh2 Ra7 Rf3 g3+ Kh3 Ra8 Nc4 Bc1 Rd3 Qh5+ Bh4 Ra7 Nf3 g1B Re3 g2 N3h2 Ra8 Rf3 Bb2 Ng4 Bh2 Qd4 Bg3 Ngh2 g1B Qa7 Bf4 Qb8 Bfc1 Qc8 Qfe2 Kg3 Ba7 Rd3 Bb8 Bh1 Ra7 Rf3 Rb7 Qd7 Rb3 Qd2 Rd3 Qg5 Rc3 Qg7 Ra3 Qh8 Qf2+
nB1B2r1/1Q1B2b1/1r1p1qnk/K5N1/4P1p1/r1b1n2q/1R1PNRBr/5R1R w - - 0 1 illegal: No possible last move
3n1kbr/8/Bnp1q2n/NQP5/1R1BbP2/r2N1rp1/B2Rq1Br/R3K1R1 w - - 0 1 illegal: No possible last move, all moves rejected
5nK1/n1q4N/BPPrk2p/2R4r/1BNbq2q/r2B1r1N/b4p1N/1QR3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 f5 c4 d5 b4 a5 g4 h6 e4 d3 g6 d4 c5 d2 g7 a4 c6 d3 b6 a3 e5 a2 g5 Ra6 e6 Nd7 g6 Nc5 b5 Bb7 Rh5 Bc8 b7 Nd7 b8B Ra3 b6 Qc7 Nh3 Ba6 Qe1 d1R Bd2 Bc4 Bb4+ Kf6 e7 d2+ Bd3 Ra5 e8B Bc5 Be2 Ne7 g8N+ Ke6 g7 Nf8 Bg6 Nc8 Na3 Bd4 Rc1 a1R Nf6 Ba2 g8N Na7 Ng4 Rh7 Qg1 Rf7 N8f6 Rb5 Nh2 Re5 Kg2 f3+ Kg3 f2 Kh4 f1Q Ba6 f4 Bgd3 f3 Nh7 f2 Nc4 Rf3 Qh1 Ra5 Rc5 Qe1 Kh5 Qe4 Qf1 Re1 Qh1 d1Q Qg1 Qa4 Qh1 Nd7 Qf1 Qh4+ Kg6 Re5 Kg7 Nf8+ Kg8 Rh5 Qh1 Qc2 Qd1 Qe2 Qc2 Qee4 Qb1 Ra3 Nf1 Qd7 Bh2 Qdd8 Bg1 Qc7 Qc2 Rb1 Nh2 Rb2 Qb3 Rd2 Qb1 Bg7 Be2 Rd6 Bd3 Bd4
qrN1rkn1/2b4B/1pq1PB2/N5r1/RRr4N/4qRpP/b2Q1nN1/K4R2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 e4 g5 a4 f5 d4 c5 Kd2 c4 Kc2 c3 d6 g4 d5 f3 h3 f4 e5 g3 h6 f2 a5 f3 h7 Bd7 e6 Nc6 a6 Nf6 a7 Qa5 Qd2 Rb8 a8N Qa7 Ra4 Ne7 Bd3 f1R Ne2 f2 Nf4 Neg8 Nb6 Bc6 Ng2 Ng4 Bb2 Qa8 Nc8 b6 Na3 Rc1+ Kb3 f1Q Ka2 c2 Bf6 Qf3 Nc4 Qf4 Rf1 Qe3 Na5 b3+ Kb2 Be7 d7+ Kf8 d6 Bd8 Bg6 Bc7 d8R+ Be8 Rd7 Nf2 Re7 Bb5 d7 Bc4 Bd3 Qc6 d8R+ Qe8 Rd6 Qc6 Rdd7 Qa8 Rd4 Bd5 Rdb4 Bc4 Ka3 b2 Rg7 b1R Rg5 Qb7 Rf5 Qa8 Rf3 Ra1+ Kb2 Ra3 Rf4 Ba2 Rf3 Rc3 Bf5 Rc5 Bg6 Rg5 Be4 Re1 Bf5 Re2 Ka1 c1Q+ Bb1 Qcc6 Bg6 Ne7 Be4 Rhg8 h8N Re1+ Bb1 Rc1 Ng6+ Ke8 Ra3 Rc4 N6h4 Kf8 Raa4 Rh8 Bh7 Ng8 Be4 Rh7 Bg6 Re7 Bh7 Re8
1r2BR2/r3PnN1/1k1K1N2/n2B1p2/2Q3NB/2b2N2/Pp1B1q1r/1b2bqRb w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 b5 d4 c5 e4 Kc7 g4 c4 d6+ Kb6 d5 c3 g6 c2 g7 b3 g5 h4 d7 h3 d6 b2 g6 h2 Qe2 f3 Nd2 b1B Nc4+ Kc5 Ne3 f2 Bd2 c1B Nf3 b4 Ng4 b3 Qc4+ Kb6 Bg2 Nf6 g8B f1Q g7 b2 Bf7 Qc7 d8N Qa7 g8N Bg7 d7 Bb7 Ne6 Nh7+ N8f6 Nc6+ Kd6 Ng5 e5 Rhb8 Be8 Na5 Rg1 Bh8 Ng7 h1R e6 Rh2 Bh1 Qf2 Re1 Qa6 Re5 Ra7 Rd5 Bc6 d8B+ Kb7 Be7 Kb6 Rc5 Ba8 Rc8 Qb5 Nh4 Bc6 Bd5 Qa6 Nf3 Qb5 Qc3 Qbf1 Qc4 Ba8 Bg6 Bb7 Rf8 Bc6 Be8 Ba8 Bb4 Bd2 Bc3 Be1 Bd2 Bc6 Nh7 Q1g1 Nfe5 Bd7 Bh1 Bc6 Nh5 Bd3 Rc1 Bf6 Ng7 Bb1 Bf3 Ba4 Ba8 Bc6 Bb7 Bce4 Bd5 Bh1 Nf3 Bc3 Bf6 Qgg2 e7 Qh3 Bf4 Bed2 Rg1 Be1 Bd2 Ne6 Bfg5 Nd8 Bh4 Qhf1 Nhf6 Nf7+
1B1n1bQ1/bq2Pb1N/2BNPR1n/2R5/NpR2r2/1K2r2p/3qRq1k/1N3q2 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 g4 Kd7 d4 b5 Kd2 c5 Kc2 f5 a4 h5 e4 f4 a5 c4 e6+ Kd6 g5 f3 g6 f2 e5+ Ke7 g7 h3 a6 h2 d6+ Ke8 a7 h4 e7 Kd7 d5 c3 Bf4 h3 Nf3 Rh6 Ra2 Nc6 Kb3 c2 Ng5 c1B Nh7 Rh4 Bg2 f1Q Re2 Nh6 g8R Qf2 Qg1 Be3 Rg5 Bb7 Bg3 Rf4 Rg4 Rb8 a8N Ba7 Rg6 Qa5 Rf6 Re8 Be4 Nd8 Qg2 Qa6 Rc1 h1Q Rc5 Qa5 Bh2 Qhf1 Qg8 Qb6 Rc4 Qbd4 Bf3 Qd2 Be4 Bc6 Rc5 Kc8 d7+ Kb8 d6 Bd5+ Rc4 Bf7 Nb6 Rg4 Na4 Rf4 Bf5 Kb7 Nc5+ Kc6 Na4+ Kd5 Rc5+ Kd4+ Be6 Nc6 d8N Kd3 Nb7 Nd8 Bd5 Kd4 Re4+ Kd3 Rec4 Ke3 Bc6 Ke2 Rd5 Kf3 Bg3 Kg2 Rdc5+ Kg1 Bh4+ Kh2 e6 Re4 d7 Re1 Rc2 Re2 Nd6 Re3+ Kb2 b3 Bg3+ Kg1 Ka3 b2+ R2c3 b4+ Kb3 Qa6 Nc4 Qb7 Bb8+ Qg2 Nd6 Kh2 Rf1 Qgf2 Re1 Bg7 Re2 Rf8 Rc4 Bh5 Rc5 Rf4 Rc4 Bf8 Rc5 Ndf7 d8R Bg6 Rc8 Nd8 Rf5 Bf7 Rf6 Re5 Rc4 Ree4 Bd5 Re5 R8c5 Ree4 Bc6 Re3+ Nbc3 b1Q+ Nb2 Qf1 Na4 Re5 Nb1 Re3+
1qN1Brn1/4p2K/1N2b3/QBN3P1/1npn3R/n1rRP3/R1qbk3/NR1r4 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 h5 b3 b5 axb5 g5 Ba3 h4 Bd6 Bh6 fxg5 Bg7 g4 Bf8 Bg3 hxg3 d4 Kd7 Kd2 Kd6 Ke3 Kd5 Kf4 c5 h4 a5 b6 f5 e3 c3 b4 c2 b7 c1N g6 a4 Kg5 Ke4 b5 g2 b6 a3 h5 a2 g7 f4 Kg6 f3 g5 f2 d5 Qd7 d6 Nb3 h6 Qc6 h7 Nd7 b8N Nh6 g8B Nf6 b7 Nd5 Na6 Nd2 b8N Nc4 Nf3 g1R Ne1 Nc7 Na3 Nd5 Qa4 Nb4 Qa5 Bg7 Nec2 Kf3 Nd7 Bc3 Nb6 Be6 d7 Bd2 d8R Rc8 Bf7 Ng8 Nb5 Na3 Rd3 Rc7 Rb1 a1N Rh4 Nb3 Na7 Nd4 Be8 Qa8 Na1 Qb8 Nac8 Rh1 Bg2+ Ke2 Bgc6 f1Q Bb5 Qc1 Kg7 Rd1 Kg6 c4 Nc5 Qc2 Kg7 Rb7 Kg6 Nh6 Kg7 Rf8 h8R Ng8 R8h5 Rc1 Kh7 Rd7 Rh6 Qa2 Rf6 Rc3 Rff1 Qb3 Rb2 Rd5 Ra2 Qc2 Rg1 Rdf5 Rc1 Rf1 Rb1 Rd1
nr2nNqn/2Nbppq1/N2NP3/6k1/3R1rBb/n4P2/R1bK1Q2/1B3RR1 w - - 0 1 legal: proof: c4 a5 b4 g5 a4 d5 cxd5 b5 h4 gxh4 Ba3 Nh6 axb5 Rg8 b6 Rh8 b5 Ng8 Bb4 axb4 g4 c5 d4 h5 e4 h3 g5 h4 g6 h2 e5 b3 b7 c4 e6 b2 d6 c3 b6 c2 g7 c1N d5 h3 f3 Na6 b8N Ne2 b7 Bd7 Qd4 Nf4 Kd2 Ng6 Ra2 Rh4 Nc3 Nc7 Nb5 Nf6 g8B Rf4 Na6 Rb8 Bh7 Bh6 Ne2 Kf8 Qf2 Kg7 Rg1 h1B Ned4 h2 Bh3 Bg2 Bg4 Nh8 Bb1 h1Q Nf5+ Kg6 Rf1 Na8 Nbc7 Qg8 Rg1 Rf8 b8N Bg5 Rf1 Bh3 Rg1 Be8 d7 Qg2 d8R Bd7 d6 Ne8 Rc8 Bh4 Rf1 Bb5 d7 Kg5 d8R Bd7 Nd6 Qg3 Nc6 Qg1 Ne5 Qg2 Ng6 Qg3 Bh5 Bf5 Bg4 Bc2 Rb8 Rc4 Rb4 Qe5 Rc8 Rf4 Rd4 Qeg7 Rb8 Nf6 Rb6 Rb8 Nf8 Ne8 Rc6 Bd1 Rc1 Bb3 Bbf5 Bba4 Rg1 Bc2 Rcf1 b1N+ Ke2 Nc3+ Kd2 Nb5 Bd3 Na3 Be4 Bca4 Bb1 Bc2
N5B1/1rPb1b1p/2qP4/BN1B3Q/KB3pr1/1q5N/2b1k1Nn/R1r1b1Rn w - - 0 1 illegal: No possible last move, all moves rejected
qr2qB1r/1RPbrPQ1/2q4B/6B1/pp1nnbN1/3B2NK/N2N2R1/k6q w - - 0 1 illegal: No proof kernel
3n1n1N/1P3R2/1qb3RQ/kBn1p1br/1R3R2/1pq1B1P1/2rB2B1/K1Nr3n w - - 0 1 illegal: No proof kernel
2R1N2R/K1BPb2B/r6N/pbB5/2rQqb1n/2B2Rb1/bp2kP1R/2b1n3 w - - 0 1 illegal: No proof kernel
1nkBrB2/bn1N1b1K/8/N3Q3/PRB1r1Np/1q1nP3/2bp1B1n/1R2bN2 w - - 0 1 illegal: No proof kernel
n3K3/1b1nN1N1/3rpbQR/1B6/RNPk3n/3nr2b/2PB1pRq/R2b1N2 w - - 0 1 illegal: No proof kernel
NnbRbRQB/6K1/2P1RbP1/1nBq3B/p1pB4/3Rn2N/2r3b1/1r3k1n w - - 0 1 illegal: No possible last move, all moves rejected
n1BB4/N2nb2B/1P2bN1q/2B1k3/1Rb1N1br/1r6/pr1pP1R1/Kr3QN1 w - - 0 1 illegal: No possible last move, all moves rejected
kb3bq1/3bP1P1/Kp3N2/1Bn1RRb1/3r4/N1QpB2n/1R2NR2/N1nr2n1 w - - 0 1 illegal: No proof kernel
2NB3r/RP5q/bnBNq3/B1p1BR1r/5nQq/2K3p1/1n1R2Pk/nn4R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 exf4 c4 d5 Kf2 dxc4 Ke1 g4 Na3 Be7 Nb1 Bg5 hxg5 Qe7 Ra4 Qf6 Ra1 Qd8 d4 Kd7 Kd2 Kd6 b4 c5 e4 h5 d5 Ke5 b6 f5 b5 a5 g6 c3+ Kd3 c2 g7 h4 b7 f3 d6 f4 d7 f2 b6 a4 Ba3 c1N+ Kd2 f3 Kc3 Kf4 e5 Kg3 e6 h3 e7 h2 e8R Nf6 g8R Rh5 Bb5 f1N Re6 f2 Bc6 Ne3 Bb2 f1Q Re5 a3 Nd2 a2 Rf5 Qe2 Ngf3 Nc2 Nc4 Qe6 Nfe5 Na3 Nd6 Nd3 Rg1 h1Q Ng6 Kh2 Ne7 g3 Qg4 Qc7 d8B Nbd7 b8B Ba6 b7 Nb6 Bc1 Nb2 Nec8 Qh7 Bbc7 Rb8 Bf4 Ra8 Be5 Nfd5+ Kd2 Nf4 Kc3 Rb8 Rad1 a1N Rd2 Na8 Ba5 Nb6 Rh8 Qee7 Rb1 Qh4 Rbd1 Qe1 Rc1 Qe4 Rg1 Qd5 Rg8 Qe6 Ne7 N6c4 Bdb6 Rd8 Rgf8 Rd7 Ra8 Rd8 Nec8 Rh8 Bd8 Nb6 Ra7 Nb1+
N1r1Q3/k2r1q2/B2rR3/b3Bb2/b2p1n1B/1r1PpN1N/1P1r3B/3R1NKq w - - 0 1 illegal: No possible last move, all moves rejected
N1q2nRq/q1Bp2q1/1Nr4N/2q1N3/3k4/Q1rP1Rb1/np2KP2/r1RBR3 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 g4 Kf7 a4 Kf6 a5 Ke5 a6 c5 g5 h5 f6 b2 a7 b3 g6 h3 f7 h2 g7 c4 d3 h4 b6 c3 b7 c2 Ra3 h3 Ra6 Qc8 Bg2 Kd4 Bf4 c1R Bf3 e5 Rf6 e4 Na3 b1Q Rf5 b2 Bg4 e3 Bd6 e2 Bf4 Rc6 Bf3 Qa1 Qc1 Bd6 f8R Ne7 g8N Na6 b8R Nb4 R8f6 Na2 Nh6 Ng6 Rc5 Nf8 Nc4 Rg8 Nb6 Rg5 Bd2 Bg3 Ba5 Re5 Rc2 Rec5 Qb1 Rc4 Rc1 Rc3 Qc2 Kc5 Qb3 Kd4 Rd1 Qc1 Qa3 Qg5 Ra1 Qg7 Kd2 Ke5 Ke3 e1Q+ Be2 Qb1 Bd1 Qc1+ Ke2 Kd4 Rf3 Qcg5 Rb1 Qc5 Rc1 Qb4 Qa4 Ng6 Rf7 Bf4 Ng8 Qd8 Nf3+ Kc5 Rg1 h1Q Nd5 h2 Ne5 Kd4 Qb3 Qc5 Nc4 Nb4 Re1 Qc7 Re8 Qc8 Rff8 Bb8 Bd8 Bd6 Ndb6 Bb8 Nf6 Bc7 Ng4 Bf4 Rg8 Nf8 Re6 Be5 Rd6+ Qhd5 Rf6 h1Q Rf3 Qe6 Qa2 Qhh8 Nh6 Bg3+ Ne5 Qb3 Qa1 Qa3 Qa2 Rb8 Qb3 Rb7 a8N Ra7 Bc7 Qaa6 Rc2 Qab7 Rc1 Ra1 Qa2 Qa7 Qa3 Na2
1q1N2Qn/rq4B1/1N3Knb/pBq1n2k/8/B1R1Pp2/P2N2bq/b1RN2B1 w - - 0 1 legal: proof: g4 c5 b4 h5 bxc5 hxg4 e4 d5 d3 dxe4 Kd2 e3+ Ke1 e2 Kd2 Rh7 Bg2 Rh5 Bf1 Rh8 Ke3 e1B Qf3 e5 Qg3 b5 Qf3 a5 Qe2 e4 Qd1 Ra6 Kf4 e3 Kg3 e2 Kg2 Ra8 Kg3 Rh3+ Kg2 Re3 fxe3 Ra6 Bd2 Rh6 Bc1 Rh8 c4 g5 h4 f5 c6 Kf7 d4 Kg6 c5 b4 d5 g3 Kh3 g2 d6 b3 c7 b2 h5+ Kh6 c6 f4+ d7 f3 Kg4 Beb4 Kf5 e1N Qd5 g4 Bb5 g3 Nd2 Bc3 Nh3 g1Q Nf2 g2 Nd1 b1Q+ Ke6 Qh7 Ba3 Qh2 Rc1 Ba1 Rc3 Ne7 Kf6 Nd3 Qg8 Ne5 Rg1 Ba6 c8N Nf7 c7 Nbc6 Na7 Nce5 Nc6 Qb8 c8N N7g6 Nb6 Bc8 d8B Bh3 Rh1 g1Q Bc7 Bg2 Nd8 Qf1 Bcd6 Qc4 Rf1 Qc5 Bc7 Nd3 Bg3 Nde5 Bf2 Ng5 Bg1 Qhb7 Nb2 Rh7 Rfc1 Rc7 Nd1 Ngf7 Ke6 Kg5 h6 Kh5 h7 Rd7 h8B Bh6 Bg7 Nfh8 Kf5 Q7c8 Ke6 Ra7+ Kf6 Qcb7
rN2nr1R/NB1B1rr1/1P2n2R/Q1p1pBk1/1KNn1r2/5n2/1NP2B2/1b3q2 w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ng8 b4 h5 d4 e5 Kd2 Ke7 Kc3 a5 g7 f5 d5 f3 b6 f2 b7 f4 b5 a4 g6 Kf6 d6 f3 d7 a3 b6 e3 Bb5 f1R Ba4 f2 Rh3 h4 Kb3 e2 Qd5 e1N Bh6 a2 Kc3 Na6 b8N Nc5 Nf3 Qf8 d8N Ne6 Nfd2 Nf3 Ndc6 Bd7 Rh2 h3 Qa5 Rg1 Kc4 f1R Na7 Qf7 Rh1 h2 Na3 Rg4+ Kc3 Rf4 Ndc4 Bc6 Kb4 Bd5 Re1 a1N Bd7 Nb3 Re2 Nbd4 Nb2 Ba2 Nac4 Rf2 Bg5+ Kf5 Bh4 Nf6 g8B Ne8 g7 Bb1 Bh7+ Kg4 g8B c6 Bf5+ Kh5 Bg3 Kg5 Bgh7 Rg2 Bf2 Rf8 Bc8 Qf6 Bb7 Rg3 Bg4 Qf5 Ree1 Qd3 Re4 Qf1 Bh3 R4f7 Rh4 Rg4 Rh6 Rgf4 B7f5 Rg7 Bhg4 Rff7 Rg1 h1R Rg3 Rh4 Rh3 Rf8 Rh8 Rhh7 Rh6 Rgf7 Bh3 Rhg7 Bhg4 Nc5 Bd7 Nce6 Bf5 c5+
2qRq2k/q2B1np1/2PR4/B2Nb1N1/r1R1R1q1/qb1n2PN/1Qp4K/3N3q w - - 0 1 illegal: No proof kernel
1br5/3nR2B/knp1P3/N3Bqqb/pq2RB2/B1P2QRb/q6b/K1R4N w - - 0 1 legal: proof: f4 d5 h4 b5 e4 g5 a4 gxh4 axb5 e5 Bc4 a5 Be2 Ra6 Bf1 Re6 Ke2 dxe4 Ke1 e3 Bc4 e4 Bf1 Re5 fxe5 Qd6 Rh3 Qd5 Rh1 Qd8 d4 Kd7 g4 f5 b4 h5 g5 e2 Kd2 c6 Kc3 Kc7 Kb2 Kb7 d5 e1Q g6 f4 c3 a4 b6 f3 g7 f2 d6 e3 d7 h3 b5 e2 Na3 h2 Nc4 h4 Nh3 Nf6 g8R Bd6 Rg3 Nd5 Kb1 Rg8 Ba3 Qg5 d8R Nd7 Re8 Qed2 Re7 e1B Bd3 f1Q Bh7 Bb8 Nf2 h3 Qf3 Rf8 Rhg1 h1Q R1g2 Qh2 Nh1 Qdf4 Re2 Qhg2 Kb2 h2 Rc1 Bf2 Re4 Bg1+ Ka1 Qd3 Ree1 Qdf5 Re3 Qd4 Ree1 Qc5 Re4 Qb4 Na5+ Ka8 b7+ Ka7 b6+ Ka6 Nf2 h1B e6 Bh2 Ng4 Qe2 Nf2 Bg2 Nh1 Bh3 Qf1 N7f6 Qf3 Bd7 Nb3 Rc8 Na5 Bf4 b8B Be8 b7 Nd7 Be5 N5b6 b8B Bh5 Bg7 Qc2 Bh6 Qcb3 Be5 Qd5 Beg7 Bb8 Be5 Qg8 Bd2 Qgg5 Bdf4 Qa2+
2N4N/3kq2p/bB3R2/6bn/1qPb1R1B/1n2Q2P/rN1np1Kb/1nBB2N1 w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 f5 e4 fxe4 g4 c5 f4 cxd4 f5 Ra6 g5 Rf6 gxf6 Bb7 Bc4 Ba6 Bf1 Bc8 Kf2 d5 b4 g5 c4 e5 h3 d3 f7+ Kd7 f6 e3+ Kg2 a4 b6 e4 b5 g4 b7 g3 b6 d2 Na3 d4 Qh5 d1N Rh2 d3 Qg5 e2 Qh6 e1Q Nf3 e3 Nb1 a3 Be2 a2 Nc3 d2 Na4 Qe7 Nb2 Nc6 b8B Nd4 b7 Nc3 Bc7 d1N b8B Nb1 Bb6 Nd2 Ng1 Nc3 Bd1 e2 Qe3 Ba6 Bf4 Bh6 Bg5 Ncb1 Bh4 N4b3 f8N+ Kc6 f7 Nf6 Ng6 Ra8 f8N Bg5 Nh8 Nh5 Nfg6 Kd7 Kh1 Ra7 Rf2 g2+ Kh2 Ra8 Rf6 Ra7 Nf7 Ra8 Nd6 Ra7 Nc8 Ra8 Nf3 g1B+ Kg2 Bh2 Ng1 Nc3 Rb1 a1B Nh8 Ra7 Na4 Bb2 Ra1 Ncb1 Ra3 Bd4 Nb2 Ne4 Ra5 Q1b4 Raf5 Ned2 Rf1 Bb7+ R1f3 Ra2 Rf4 Ba6 Rf6 Qa5 R3f4 Qab4
1B5k/1BBN2b1/bp1pNnKn/1nQP1r2/r1n3NP/4B1N1/1b1r1R2/2Rb4 w - - 0 1 legal: proof: f4 h5 g4 e5 gxh5 exf4 b4 b6 b5 Qg5 c4 Qd5 c5 Qb7 c6 a6 cxb7 axb5 Ba3 b4 Bb2 Ra4 Bc1 Ra8 Kf2 f5 Kf3 Kf7 h4 c5 d4 g5 e4 Kg7 a4 c4 e5 c3 a5 c2 d5 b3 e6 b2 e7 Nh6 Nc3 b1N a6 Na3 a7 Nb5 Be3 c1B Ra2 Bb2 e8N+ Kg8 Bd3 Bg7 Qc2 d6 Ne4 Nd7 b8B Kh7 Ng3 Rf8 Nh3 Kh8 Qc5 Ba6 Nf2 Nf6 Ng4 Rf7 Rc1 Rf8 Kg2 f3+ Kh3 f4 Bf5 f2 Bc8 f1N Bb7 Nf5 h6 f3 h7 f2 Bd4 Nh6 Be3 Bd4 Rb2 Nd2 Rbc2 Nc4 Ra2 Ne4 Nef6 f1B+ Rg2 Bb2 Nd7 Be2 Rf2 Bgf6 Rff1 Bd1 Rf2 Kg7 h8B+ Kg8 Rg2 Bg7 Rh2 Rf5 Rf2 Bf8 Bhd4 Bg7 Bf6 Kh8 Bd8 Nf6 Bbc7 Rb8 a8N Rc8 Bb8 Rc7 Bc6 Ra7 Nc7 Ra8 Ne6 Ra7 Bdc7 Ra8 Nge5 g4+ Kh2 Ra7 Bb7 Ra8 Nh1 g3+ Kh3 g2 Ng4 g1R Ng3 Rg5 Ne2 Rh1+ Kg3 Re5 Kf4 Rh2 Ng3 Ra7 Rf3 Rd2 Rf2 Nf5 Kg5 Nh6+ Kg6 Rf5 Ba8 Bc8 Bb7 Ra4 Bc6 Ba6 Ba8 Bf3 Bb7 Bd1
1r5k/3n4/1bRn1p1b/2p2r1N/N2p1NQ1/1B1RqPRR/1P2bn1B/2NrK3 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 h5 a4 hxg4 axb5 d5 cxd5 exd4 h4 c5 e4 a5 e5 g5 f3 g3 e6 g2 d6 a4 e7 f6 h5 Kf7 e8N g4 d7 a3 h6 g3 b6 a2 b7 Ne7 h7 Bh6 Nc3 Nf5 Bf4 Qe7+ Nge2 g1B d8R g2 Ng7 Nd6 Rg8 Qe3 Na4 Bh2 Nh5 g1N Rg3 Nd7 b8R Ba6 Rb6 Rab8 Rc6 Nh3 Qd3 Rhg8 Qe4 Rg5 h8N+ Kg8 Rd1 a1R Ng6 Nf2 Qe6+ Kh7 Qg4 Rf5 Be5 Bc4 Ngf4 Kh8 Bh3 Ra3 Rd3 Rc3 Bf1 Rc2 Bh3 Rd2 Bf1 Bg1 Rhh3 Bh2 Ra3 Qb3 Nc1 Bb5 Be2 Qc3 Bd1 Be2 Rb3 Qe3 Rd3 Rf8 Ng6+ Kh7 Rg2 Nb7 Re6 Rb8 Rc6 Bg3 Bb3 Bgf4 Nf8+ Kh8 Ne6 Bh2 Bc7 Bd6 Rg1 Be7 Bd6 Bd8 Bh2 Bb6 Rgg3 Nd6 Nef4 Rd1+
1R1NnNb1/2n3B1/B1r2n2/1pK5/1B2Q2q/1RpPPq1N/p2b1B1k/3r2Nr w - - 0 1 illegal: No proof kernel
1q3B1N/Q2Bb3/N1nBP2p/N5k1/1r1q2q1/NR2p3/bK1npP1b/2BR2r1 w - - 0 1 illegal: No proof kernel
1B2N1RK/1rbr4/1QpB1B2/n1P2R2/p2q2pq/5PnR/B2kr1N1/qR5b w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 g4 hxg4 d4 e5 dxe5 fxe4 Kd2 Kf7 Ke3 Ke6 Kf4 a5 h4 d5 b4 d4 c4 d3 f3 a4 c5 Kd5 e6 Kd4 Kf5 g5 Kg6 c6 h5 g3 e7 g2 e8R e3 b6 d2 b7 g4 b5 e2 b6 Kd3 h6 Ra7 h7 Qc7 Nc3 Nd7 b8R Qh2 b7 Ngf6 Nh3 g1Q Rb1 Bd6 Kg7 Bc7 Re5 Rd8 h8B Ne4 Rf5 Ng3 Nd5 Qd4+ Nf6 Ne5 Ne8 Nc4+ Kg8 Rd5 Bf6 Rd7 Kh8 Na5 Qe1 d1Q Qb4 Kc2 Qb6 e1R Bf4 Re2 Bd6 Kd2 Ra8 Qhf2 b8B Ba6 Nf4 Rb7 Rh3 Qh2 Ng2 Qh1 Rb3 Q1a1 Rb1 Qh2 Rh7 Qh4 Rhh5 Re6 Bc4 Re1 Ba2 Bf1 Ba7 Re3 Rd8 Re2 Bb8 Qh1 Rh3 Qh2 Ne1 Bg2 Rc8 Bh1 Ng2 Qe4 Rd8 Qed4 Rh7 Qab2 Ng7 Rf7 Rg8 Rd7 Ne8 Qa1 Rh6 Qh5 Rh7 Qg5 Rh3 Qh4+
b1k2rn1/b3B3/1P1n4/qR3N1r/1p3n2/bp1B1N1P/Rp1NN1qK/Q5RR w - - 0 1 illegal: No proof kernel
1R1r1R2/3N3P/B2q1B1P/b3r1RK/2N2ppB/1pnnQr2/n1k1bB1R/3q4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 h4 Ke5 d4+ Kf5 e4+ Kf6 a4 c5 e5+ Kf5 a5 g5 h6 b5 a6 c4 h7 b3 d6 c3 h5 c2 d5 b4 e6 b2 h6 b3 a7 Na6 d7 Nc5 d6 Nf6 e7 Nd3 e8R Nd5 Ra5 Ba6 Nd2 b1Q Qe1 f6 Bb2 c1N Qe3 Na2 Rh2 Qd1+ Be2 Bb5 Bd4 Ndc3 Nc4 Qb6 Bc5 Rd8 a8R Rg8 Rb8 g4+ Kg2 f3+ Kg3 f2 Kh4 f1R Nf3 Qc7 Nfe5 Rf3 Kh5 Rg7 Bb6 Re7 Bf1 Bg7 Rf8 Qc6 Qe1 Kf4 Bf2 f5 Be2 Ke4 Qg1 Rde8 d8B f4 d7 Qd6 Qg3 Re6 Bh4 Bf6 Bf1 Bd8 Qh3 Bc7 d8B Ba6 Bde7 Rd8 Bef6 Ree8 Rab5 Ba5 Nd7 Re7 Rg5 Re5 Ne3 Ne1 Qg3 Be2 Nc4 Kd3 Qg1 Rh3 Qg3+ Kc2 Qe3 Nd3 Bg2 Nb2 Bb7 Rf3 Ba6 Nd3
1qq3R1/1N2b1PB/b3N2K/1r5n/3R1pq1/r1BQ1N2/prP1p1B1/1Nk3Bn w - - 0 1 illegal: No proof kernel
1B2NRR1/1br2pKn/1pB1b3/PPpQ4/2q2RRN/3r1nq1/5q2/BB1k1b2 w - - 0 1 illegal: No proof kernel
3n4/RBP2N1r/Pr1pB2N/q3b2b/qkN2B2/1rb1N3/p1p2B2/1QK2Rn1 w - - 0 1 illegal: No proof kernel
5n1R/1np1rPbB/k3B1Np/4p1QN/5qb1/bN3bPN/1BK3Bb/r6R w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 g5 hxg5 d5 bxa5 dxc4 d4 Kd7 Kd2 Kc6 a4 b5 f4 Kb7 d5 e5 d6 c3+ Kc2 e3 a6+ Ka7 g3 e2 g6 e1B g7 h6 d7 b4 f5 Qe8 d8N Nc6 a5 Bd6 f6 Qe7 f7 Qh4 Bb2 Bf8 Ne6 Qf4 Nh3 Bf2 Bc4 Nd8 Nd2 Ne7 g8N Bg7 Nf6 Re8 Qh5 Bg1 Qg5 Bh2 Nb3 Nb7 Nh5 Ng6 Nf8 Bg4 Be6 Re7 Rad1 Bf3 Rd8 Bg4 Kd3 c2 Rb8 c1B Kc2 Nh8 Ng6 Bf3 Nh4 Ng6 Rh8 Nf8 Ng6 Rd8 Bc8 Rd1 Be6 Ka8 a7 Bg4 Ba1 Ba3 Bb2 Ra1 Nf2 Nd6 Nh3 Kb7 a8B+ Ka6 Be4 Nb7 Bg2 Kb5 a6 Kb6 a7 Ka6 a8B Bf3 Nd4 b3+ Kc3 Na5 Be4 Nb7 Nh4 Bg4 Bh7 Bf3 Ng6 Bg4 Bc1 b2 Nb3 b1B Bb2 Ba2 Kd3 Bf3 Kc2 Bg4 Nc1 Bd5 Nb3 Bdf3
1B4NN/1bBR1r1r/Qbbp1P2/4Rrr1/Bpq5/1pn2KP1/2k1n1R1/1RB5 w - - 0 1 illegal: No possible last move
1n3b2/N1pp1BPb/bn4rQ/q4Br1/1p1N1R1N/1RPB1K1r/2B5/3Nr2k w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 h6 g6 Qe7 g7 Qd8 g4 Bd6 g5 Be7 g6 Bf8 Bg5 hxg5 Kf2 Ke7 a4 Ke6 e4 f5 h4 b5 h5 f4 h6 f3 a5 b3 a6 g4 a7 b2 h7 b4 Bd3 Nc6 Ne2 Qg5 Rf1 Qc1 Ra3 Nb8 Rb3 Nc6 Nd4+ Ke7 e6 Kd6 e7 Ke5 e8N Kf4 e5 Rb8 a8B Rb5 e6 Rf5 e7 Rg5 Nd6 Nf6 e8B Ba6 g8B Nb8 g7 Nd5 Bgf7 Nb6 Nc3 b1B Bae4 Qa3 Nc8 Qa5 Na7 Rg6 Bf5 g3+ Ke1 f2+ Ke2 g2 Qd2+ Kg3 Nd1 Kh2 c3 g1R Kf3 Kh1 Qc1 Rg8 h8N Rg5 Ng6 Rh8 Bc2 Rh2 Nh4 Rg6 Qh6 Rg5 Re1 Rg6 Re4 R1g5 Rf4 f1R+ Ke3 Re1+ Kf3 Re4 Bc4 Re1 B4d3 Ba2 Rb2 Bg8 Rb3 Bh7 Bf7 Rh3+
nnbR1NN1/rB1RBkq1/q5pr/3p4/2P3n1/R2NpnQ1/2K4P/2R1b2N w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 e5 b4 d5 f4 a5 f6 a4 f5 g3 f7+ Ke7 b6 g2 b5 d3 f6+ Ke6 b7 g6 b6 a3 Ne2 g1N Qe1 a2 Ng3 e4 Ba3 Rh5 Nc3 Nd7 b8N Bb4 f8R Qe7 f7 Qh4 b7 Ra6 Rd8 Ngf6 f8N+ Kf7 Nc6 Rh7 b8R Ng4 Rb7 Qf6 Ne7 Ra7 Ng8 e3+ Kd1 d2 Na4 Qg7 Nb2 Rh6 Nd3 Bc3 Be7 Nb8 Rbd7 Nf3 Bh3 Bb4 c4 Ba5 Rc1 a1Q Kc2 d1N Rf1 Qa3 Nh1 Nb2 Qg3 Na4 Ra1 Nb6 Rfc1 Be1 Ra2 Qa6 Ra3 Nf6 Rd6 Bb7 Bc8 Ng4 R6d7 Na8 Ndf2 Qb5 Nd3 Ba6 Bb7 Qb6 Bc6 Bc8 Bb7 Qa6
1q2Bn2/R3B1r1/N1np4/P1RP4/3r2kq/b1RQBRN1/1p1bpKB1/4b2b w - - 0 1 illegal: No possible last move
Nn6/1NbkP2r/2q1pB1p/B2b3R/1P2B1R1/1bp4R/3qQ3/rbKBR2n w - - 0 1 illegal: No proof kernel
3rn2r/1qbBk2B/Kn4rP/5p2/R2RBNR1/p5Q1/P1rNnp2/BR4q1 w - - 0 1 legal: proof: c4 e5 b4 c5 bxc5 h5 d4 b6 g4 hxg4 f4 Bb7 d5 Bc6 dxc6 exf4 Kd2 g5 Kc3 a5 e4 f5 h4 d5 h5 a4 Kb4 g3 Kb5 g2 e5 f3 h6 a3 c7 f2 c8R d4 c6 g4 c5 d3 c7 d2 c6 g3 e6 Be7 Bb2 Bf6 e7 Ra6 Qg4 d1R Bd3 Be5 Ne2 g1Q Nd2 g2 Rb1 Nf6 Ba1 Nbd7 Ra8 Qb8 c8B Bc7 Qg3 Qb7 Rh4 Rc1 Ra4 Rc2 Rd4 Kf7 e8B+ Ke7 Bg6 Ne8 Rb8 Ra8 Be4 Ra6 Bh7 Ra8 Kb4 b5 Nf4 Nb6 Bd7 Ra6 Rc8 Ra8 Rd8 Rc8 Ka5 b4 Kb5 b3 Ra4 b2 Ka5 Nd6 Rg8 Rd8 Rg4 Ne8 Rd4 Qe1 Kb5 g1N Ka5 Ne2 Ra4 Be5 c7 Qg1 c8R Bb8 Rcc4 Bc7 Rc1 b1R Rd4 Rb4 Rb1 Rbc4 Kb5 Rc6 Ka5 Rg6 Kb5 Qc6+ Ka6 Qb7+
1K1bQB1q/1q1qB1Nb/1B5r/1Np1R3/2r1Bqpp/7n/1kNrPRP1/1N6 w - - 0 1 illegal: No proof kernel forced: bxLB
b3rq2/b1pB1bQ1/NqN2b1B/2P2n1B/krq3K1/1N1pB2R/pP6/2N1R3 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 e5 axb5 exd4 Nh3 Na6 Ng1 Nc5 Ra3 Ne6 Ra2 fxg4 Ra1 g3 Ra5 g4 Ra1 Ng5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 c4 a5 f4 d5 e4 Kd7 Ke2 h5 b6 Kc6 g6 g2 e5 g3 Kf3 d3 b7 d4 g7 h4 e6 d2 f5 h3 e7 a4 f6 a3 f7 d3 Kf4 a2 Kg5 h2 Ne2 g1B Bh3 Nh6 g8N Ba7 Qg1 d1Q Nd2 g2 Nb3 Rb8 Be3 Be6 Nec1 Bg7 f8B Nf5 c5 Kb5 Bg4 Bf7 Bh5 Qc2 Kg4 Bf6 Bfh6 Qf8 e8B+ Kb4 Ne7 Qc4+ Nd4 Ka5 Nc6+ Ka4 Bd7 Re8 b8N Rg8+ Kf3 Rg4 Na6 Rge4 Ndb3 Rd4 Qf2 g1Q Qg3 Qe1 Qg4 Qeb4 Qg7 Qb6 Re1 Qc3 Rh1 Rb4 Re1 Qc4 Rb1 Bd4 Kg4 h1B Ra1 Be4 Rh1 Bf6 Rh3 Nh4 Ne2 Nf5 Re1 Qcb5 Nec1 Qc4 Bhg5 Bg2+ Bgf4 Be4 Bh6 Rb5 Ncb8 Bh1+ Bef4 Ba8 Nc6 Bd4 Bfg5 Rb4 Be3 Bf6+
q5RN/1rpnn1p1/1q2P1Qq/1N3Bp1/bBBB2N1/5NK1/2P3Rr/2k1n1n1 w - - 0 1 legal: proof: d4 e5 e4 exd4 a4 b5 axb5 h6 g4 Bd6 f4 Na6 g5 hxg5 e5 Nb8 e6 Be5 fxe5 Qf6 Qf3 Qe7 Qd1 Qd8 Kf2 Ke7 h4 f5 b4 a5 b6 d5 h5 d3 b5 f4 h6 a4 b7 d4 h7 a3 b6 a2 Nc3 f3 Na4 d2 Bb5 d3 Nc5 Ra7 Qe1 d1Q Bd2 Qd6 Nb3 Bd7 Nd4 Qb1 Kg3 f2 Bb4 d2 Ngf3 d1N Rh2 Ne3 Bc4 Ba4 Rg2 Nd7 b8B Rb7 Nb5 Qb3 Rb1 a1Q Ba7 Qaa3 Qd2 Qa1 Qd3 f1N+ Kf2 Nd2 Qg6 Qaa2 Kg3 Qa1 Rh1 Qbb1 Rh4 Qh1 Rf4 Qh6 Rf8 Qa2 Nh2 Qa3 Ng4 Nf3 Rb8 Ng1 Ra8 Rb8 b7 Qa1 Bd4 Qc5 Rf2 Ng2 Rd2 Ne1 Rg2 Rc8 b8N Qd6 Na6 Rb8 Nc5 Rb7 Ne4 Qc5 Nd2 Qa3+ Bbc3 Qa7 Rf8 Qb4 Nf3 Qa8 Rf5 Qc5 Ba5 Qb6 Bb4+ Kd8 e7+ Kc8 e8B Ne7 e6 Kb8 Nc3 Ka7 Nb5+ Ka6 Bbc5 Ka5 Rf8 Qc6 Bd6 Qc5 Rg8 Kb4 Nc3 Ka3 Bf7 Kb2 Nb5+ Kb1 Be8 Qb6 Bb4 Nf8 Bc6 Kc1 Be4 Nd7 Bed3 Qaa7 Bf5 Qa8 Re8 Rf8 h8N Rf7 Rg8 Rf8 Bfd3 Rf4 Bf5 Re4 Nge5 Rh4 Ng4 Rh2
1K4nR/1N3R1r/2r2p2/rk2p1pB/4P3/b1b1BRrP/br4n1/BB3RQN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 f5 cxd4 Nd2 Qf6 Nb1 Qe6 fxe6 Bb7 Nc3 Ba6 Nb1 Bc8 Kf2 g5 c4 a5 b4 d5 h3 a4 e7 Kd7 e8B+ Kc7 c5 d3 Ke3 d2 b6+ Kb7 b5 d4+ Ke4 d3 Kd5 f6 e4 a3 Ne2 g3 Nbc3 a2 Bh5 g2 Ng3 g1B Na4 Ne7+ Kd6 Bg7 Bb2 Ra6 Qe1 d1R c6+ Ka8 Kc7 d2 b7+ Ka7 Bc4 Ng8 Bd3 Nd7 b8R Rh7 Nc5 Bf8 Nb7 Bd4 Bb1 Bc3 Rf1 Ba3 Nh1 Rb6 Qf2 Rc1 Qg1 d1R Rf4 Rd3 Rf3 Bd2 Bd4 Bc3 Be3 Be7 Bd4 Nc5 Be3 Bd7 Rf8 Be6 Rf7 Bd5 Kc8 Ne6 c7 Nf4 Bd4 Bc5 Be3 Rc6 b6+ Ka6 Kb8 Ba3 c8R Ng2 Rd8 Kb5 Bd4 Nh6 Rh8 Ng8 Re3 Rg7 Nd6+ Ka4 b7 Ba5 Bf3 B3b4 Bh5 Rh7 Bc2+ Bb3 Rb1 a1R Bb2 Ra2 Ba1 Rb2 Rg3 Rcd1 Rc1 Rdc3 Bb1 Rd5 Rf1 Ba2 Re3 Ra3 Rc3 Rd3 Rb3 Rg3 Rbf3 Rc7 Ka7 Rc4 b8B Rc6 Nb7 Kb5 Ka8 Bc3 Ba7 Bab4 Kb8 Ra5 Be3 Ba3
bb2Nr2/kP1B1bBp/1p1N2p1/3n1BRn/1RR1KrP1/5R1b/1r3b1Q/1B6 w - - 0 1 illegal: No possible last move
2B1n2n/Q2nb1KB/2NP1pb1/1r1r4/p2pk1rn/4BN2/RR1PN3/5NrB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 Ra2 d4 Ra1 Qd5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 g4 h5 b4 c5 b6 h3 g5 c4 g6 h4 g7 f6 b5 c3 b7 c2 b6 h2 Bh3 f3 Na3 f2 Ra2 f1N Nc4+ Kc5 Ne3 Ra7 Ba3+ Kb5 Qa1 c1R Bd6 Be7 Bf4 Kc5 d6 Nd7 Kf5 Rh5+ Kg6 Rb1 b8N Nh6 g8B Rb5 b7 Nf7 Bh7 Rd5 Nc6 Nh8+ Kg7 Ra8 Bg2 h3 b8N Ra7 Ne5 a4 Qb2 Ra8 Nef3 Bb7 Nc6 Rg8+ Kh6 Rg4 Qb3 Ng3 Nf1 Ne4 Be3 Ng5 Kg7 Ba6 Qd3 Bb7 Qg6 Ba8 Qe8 Kc4 Qb8 Ne6+ Kh6 Nc7 Qa7 Rh4+ Kg7 Rg4+ Bg5 Bb7 e4 Kd3 Ne2 Bc8 Rg1 h1R Rb2 h2 e5+ Ng6 e6 Ke4 Bh3 Bb7 Rg3 Rg1 Be3 h1N Bg2 Bc8 Rh3 Ng3 Bh1 Bd8 e7 Nf5+ Kg8 Bb7 e8B Nfh4 Kg7 Be7 Ra2 Ne5 Bd7 Bc8 Be8 Bf5 Bf7 Nd7 Be6 Ndf8 Bc8 Nd7 Bh6 Nh8+ Bg5 Bg6 Be3 Rh5 Rg3 Rf4 Rg5 Rfg4 Rc5 Re5 Rcc2 Red5 Rcb2 Ne8+
4K1Nk/r2r3p/p2p4/n2b1Qrb/1qB2R1p/1N1nR2N/PR1P1N1R/2n3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 b4 gxh4 Ba3 e5 Bb2 exf4 Bc1 c5 Rh3 Bg7 Rh1 Bb2 c3 Ba3 bxc5 b4 Nf3 b3 Ng1 Bb4 cxb4 Qa5 Na3 Qb6 Nb1 Qd8 Kf2 Kf8 Kf3 Kg7 Ke4 f5+ Ke5 b2 Kd6 f3 g4 f2 e4 a6 b5 f4 c6 f3 b6 Nh6 e5 Qc7+ Ke7 Ra7 g5 Kg8 b7 Ng4 e6 Qb6 c7 d6 g6 Qb4 g7 Qb5 Rh2 Qa5 Nc3 b1N Qc2 Ne3 Bb2 Qb5 Nd1 Ng2 Nh3 Nc3 Rb1 Ne1 Bc4 Ne2 Bd4 f1R Rb2 Qb4 Bg1 f2 Qg6 Bd7 c8R+ Be8 Kd8 Nc1 e7+ Bf7 Qb1 Bd5 e8R+ Kf7 Qe4 Ned3 Qg4 Rf8 g8N Nc6+ Kd7 Na5 Re3 Re8 Rc7 Re4 b8N Re5 Nc6 Rg5 Nd4 Kg7 Ke8+ Kh8 Qc8 Nb7 Rf7 Na5 Nb3 Re1 Re4 f1B Ndf2 Be2 Rff4 Bg4 Qe6 Bh5+ Qg6 Re2 Re7 Ree5 Re6 Ref5 Re3 Rff7 Qf5 Rfd7+
3n2Kn/B1Pp1P2/kn6/2pbbrbB/1pR3RQ/B2p4/1N1NB3/2R1qr1R w - - 0 1 illegal: No proof kernel
3K2kN/1n1n1r2/N1p2pB1/nR1rn3/BPpRq3/q1P1R2Q/1R5p/2b2BB1 w - - 0 1 illegal: No proof kernel
2rRb1b1/q4pRR/1pPp4/2R1q3/1b1PB3/2K1BB1b/1Qnp3k/1N1rB1N1 w - - 0 1 illegal: No proof kernel
Q1n1bR2/1Pb2N1R/pp1b2pN/1r1B2RN/Nr6/n1p1P3/p2B1k2/1Rq4K w - - 0 1 illegal: Other
5Q2/1RP1n2k/4r1p1/2pNBbRn/B1pqp1P1/BK1p1B2/2N5/2qRbR1q w - - 0 1 illegal: No possible last move, all moves rejected
1q1RN1r1/kN3bN1/2rRRP1n/ppqp2NB/5R2/2p3B1/Pp6/nr3K1Q w - - 0 1 illegal: Other
4RQ1B/2pqp2r/N2b1P2/NR6/B1p1k3/1pRp4/N1n1P1Rn/K2rN1nq w - - 0 1 illegal: No possible last move
5Nr1/1Bp1nrR1/1Qn1pp2/R2p1Pp1/3B4/2P1NB1K/b1p3Br/k1bRR3 w - - 1 2 illegal: No possible last move, all moves rejected
1r6/1Bk1p2R/3nR2n/3br2b/p4NR1/rRB3q1/PK2Pr1N/rQq1N1bN w - - 0 1 illegal: No proof kernel
4nR1B/Q3bB1N/rqpBp3/1R2nqrr/4P3/2PN2bb/N2nB2r/K3N1k1 w - - 0 1 illegal: No proof kernel
1N2B2n/1br3B1/qnpq1pn1/nr2Q1RN/R1N3N1/b4q1K/2P2P2/1qkB2B1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 Ra4 gxh4 Ra5 Na6 Ra1 Nb8 b4 Kd7 d4 Ke6 g4 Kd5 b6 e5 g5 h5 g6 a5 b5 e3 b7 a4 b6 f6 g7 e2 Ba3 Kc4 d5 e4 d6 h3 d7 h4 Qc1 c6 Be7 a3 Nd2+ Kc3 Nc4 h2 Rb1 a2 Na5 a1N Qf4 h3 Rb2 Nh6 g8B Ra7 Bc4 Nf7 Rb5 Rh5 Nf3 Nb3 Ne5 Kb2 Ng4 Nh8 Bf7 Qc7 d8N Nd7 b8B Rg5 b7 Nb6 Qf3 Qf4 Rg1 h1Q Rg3 h2 Rh3 Qf5 Qe3 Qe5 Be8 Qg3 Rh5 Qhf3 Ne6 h1Q Rb4 Rb5 Rg5 Kb1 Bf4 Qgh2 b8N Rc7 Rd4 Bb7 Rc4 Kb2 Bfd6 Qe5 Nf4 Qh2 Rd4 Kb1 Rb4 Qa1 Nh5 Qhf4 Nc4 Qa6 Nce5 Kb2 Ra4 Na5 Qc5 Qh2 Nc4+ Kb1 Kd2 e1N Be2 e3+ Kd1 Qhh3 Bh2 Nd3 Bg1 Ne5 Ke1 Neg6 Bd1 Qhg3 Kf1 Qe5 Qd6 Qe6 Qe5 Qd7 Bd8 Ba3 Be7 Qd6 Bf8 Qf5 Kg2 e2 Kh3 e1Q Bf3 Qc1 Bd1 Qf3+ Ng3 Qb2 Bh6 Kc1 Bg7 Qf4 Nh5 Qb1 Nge3 Qe4 Ng4 Qf3+
b2BQ1B1/n1r1pb1N/k6N/1Rp2p1B/4PnBN/7q/1KPn1Rrq/2bqN3 w - - 0 1 illegal: No possible last move
r3k1Kb/N2RNpp1/b1B2p1b/5r1n/nNb1n1P1/R4B2/1B2qPB1/5NrQ w - - 0 1 illegal: Other
1Q1b1RN1/p1R3q1/q1p1RNkp/br2n1b1/n1P1r1R1/7P/1B1Nq1B1/2N1K2b w - - 0 1 illegal: No possible last move, all moves rejected
1k3N1r/2np4/pp2b3/1rRPNBBn/2R1Rrbb/5r2/RP1b3K/N1Qq2N1 w - - 0 1 illegal: No proof kernel
2r1q1bN/2b1K3/rnB1B2Q/b2pkp1n/3Npp1B/R4P2/N3PB2/nRr4N w - - 0 1 illegal: No proof kernel
4B2N/nq3p1r/1k1rb3/2br1n2/2pqR2p/N1PR3R/1pKb1PB1/RB3QB1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 g5 hxg5 a5 Rh3 axb4 Rh2 Na6 Rh1 Nb8 d4 Kd7 Kd2 Kc6 g4 e5 a4 b5 d5+ Kb7 c3 c5 a5 h5 d6 c4 d7 h4 g6 e3+ Kc2 e2 g5 e1B g7 e4 g6 e3 a6+ Kc6 a7 e2 Bg2+ Kc5 Rh3 Rh7 Nf3 Kb6 Na3 Ne7 g8R Nf5 g7 Bc5 Bf4 Nc6 Ne5 Bd2 Ng6 e1R Nh8 Re6 Re8 Rd6 g8B Rb8 a8B Na7 Qf1 b3+ Kd1 b2 Bh2 b4 Bac6 b3 Re4 Qf6 d8R Qd4 Be8 Be6 Rd7 Rd8 Bg1 Rh6 Bh7 b1Q+ Ke2 b2 Bg6 Qbd3+ Kd1 Qf3+ Kc2 Rh7 Rg4 Qb7 Re4 Rc6 Rd6 Qe5 Rd5 Rcd6 Rdd3 Qd4 Re2 R6d7 Kb1 Qbd5 Rdg3 Ne3 Bd3 Nf5 Re4 Qb7 Bc2 Qg7 Rd3 Rd5 Bb3 Qh6 Kc2 R8d6 Ba2 Qg7 Bb1 Qd4
B1RB2qk/pB3b1B/RN4p1/2p1r1bp/5bNn/1q1Q1RRr/P4r1P/6Kn w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g3 f5 g4 fxg4 f4 Kf7 Kf2 c5 e4 h5 b4 d5 e6+ Kf6 b5 d4 f5 c3 e5+ Ke7 b6 c2 b7 d3 f6+ Ke8 e7 Kf7 Bg2 d2 Na3 Nh6 e8B+ Kg8 e6 Na6 b8R Be7 Nh3 g3+ Kg1 Nb4 Rb6 Nf5 Nc4 Nh4 Bg6 Nd3 Bb7 g2 Ra6 Nf2 Nb6 Bd7 Qf1 d1Q Bg5 c1B Bf5 Qb3 Qd3 Bd6 e7 Be6 e8B Bdf4 Bec6 Bf7 Bg6 Rh6 Bh7+ Kh8 Bf3 Bcd2 Rf1 Qg8 Bfe4 Rc8 Ba8 Rf8 Beb7 Nd1 Rf3 Nf2 Rg3 Re8 Rf3 Re5 Rg3 Bc4 f7 Rf6 f8R g6 Re8 Bf7 Rc8 Rff5 Be7 Bg5 Bd8 Bdf4 Rc6 Ne4 Rf3 Ng3 Nf2 Rf6 Ng4 Rff5 Kf2 g1R Rc8 Rd1 Rf1 Nh1+ Kg1 Rd2 Rg3 Rf2 Rg2 Rf3 Rff2 Rh3 Rf3 Re2 Rgg3 Rfe5 Nh6 Rb2 Ng4 Rf2
7B/r1Rpp2n/B1n1N3/4qpNR/1b1B2n1/p1rbrB2/R2PPK2/2kqQ2R w - - 0 1 illegal: No proof kernel
Q1rNB2n/p6p/qB2n1RK/N5p1/2pR3q/1n1n3B/1RPbR1Pk/3bB2r w - - 0 1 illegal: No proof kernel
bb2RqNn/NBpQ4/3N2p1/1pR1K2b/4p1Np/R3p3/r3PrP1/1kB1Rn2 w - - 0 1 illegal: No proof kernel forced: bxLB
1nqr4/1q2qB2/P3Q3/N1nB2Q1/3N2r1/4BPbq/QRB1p2k/B1K1b3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 Bd7 Ne2 Be6 Ng1 Bc8 hxg5 c5 a4 c4 d3 c3 Bf4 Bd7 Bc1 Bb5 Ra3 Bc4 dxc4 bxa3 g4 Kd7 c5 h5 a5 e5 f3 b5 f6 c2 Kd2 a2 a6 a1Q c6+ Kd6 f7 e4 c7 Ke5 c8Q Kf4 g6 Kg3 g5 h4 d6 b4 d7 h3 g7 h2 g6 b3 Qe2 b2 Na3 b1Q Nc4 Rh4 Na5 Ne7 g8B Qa3 g7 Rg4 Qec4 Qc5 Qa2 Qb7 Bd3 Nf5 Ne2+ Kh3 Qc6 Nd6 Nd4 Qdc8 d8Q Qa3 Rd1 h1Q Qg5 Kh2 Qb6 Be7 f8B Bd8 Bb3 Bc7 g8B Qc5 Bb2 e3+ Kc1 e2 Ba1 Ne4 Bgf7 Bg3 Bh6 Qce7 Qe6 Nc5 Bd5 Qf1 Bh7 Qh3 Rd3 Be1 Rb3 Bg3 Bd3 Be1 Rb2 Bg3 Kd2 c1B+ Kc2 Bcf4 Bdg6 Be5 Kc1 Be1 Bc2 Bc7 Qgf5 Bd6 Be3 Bdg3 Qg5 Qce8 Bc4 Nc6 Qh4 Rc8 Qhh6 Nb8 Qg5 Q8d7 B4b3 Rd8 Bd5 Qdc8
N6N/bN1q3b/2q3P1/Qq1pr2b/1BQ3R1/2N2B1k/1N1PqQ2/3b2bK w - - 0 1 legal: proof: b4 c5 e4 Qc7 e5 Qd8 a4 b5 axb5 cxb4 f4 d5 Ra4 a5 Ra2 Ra6 Ra4 Rd6 exd6 e5 Ra1 e4 h4 g5 g4 Kd7 h5 Ne7 Ra3 Ng6 hxg6 Nc6 Rf3 Ne5 fxe5 Ke8 Rf4 gxf4 g5 Qb6 Rh2 Qc7 Rh1 Qd8 Kf2 Kd7 Kg2 Ke6 c4 Kf5 g7 h5 g8N b3 e6 e3 b6 e2 c5 Kg4 b7 f5 b8N f3+ Kh2 e1B d7 h4 e7 a4 e8Q a3 c6 b2 c7 a2 Be2 a1Q Na6 h3 Nc3 b1B Qc2 f4 Ne7 Qa4 Ng6 Rh5 Nd1 Qc6 Qf7 Bf2 Qc4 Ba7 Nh8 Bh7 g6 Re5 Ba3 Bfc5 Nb2 Qe8 d8Q Qed7 Bb4 Bcb6 Bf1 f2 Bg2 f1Q Nc5 Qe2 Nb7 Bd4 Qff8 f3 Qfc5 f2 Bf3+ Kf5 Qh4 f1Q+ Qf2 Qb1 Qa5 Bdc5 Kg3 h2 Kg2 Bcb6 Nc5 Ba6 c8N Bb5 Nb7 Ba4 Nh3 Be3 Ng1 Bd1 Nb6 Kg5 Na8 Qbd3 Qc1 Qdb5 Qc4 Bec5 Nh3+ Kf5 Rg1 h1B+ Kh2 Bg2 Ng5 Bh3 Rg2 Bg4 Kh1 Bh5 Ne4 Bd4 Nc3 Be3 Bg4+ Kg5 Rg3 Kh4 Bf3+ Bed4 Rg4+ Kh3 Qe1 Bg1 Qf2 Bb3 Qe4 Ba4 Qc4 Bd1
2R5/4RNN1/6rP/1pnn3Q/p1bRb3/QrB1KPq1/6kq/RQ1R3b w - - 0 1 legal: proof: b4 d5 a4 c5 g4 cxb4 c4 f5 cxd5 h5 gxh5 Nd7 e4 Nb8 exf5 Qd7 Ne2 Qd6 Ng1 Qd8 d4 b5 d6 e6 d5 Rh6 a5 Rh7 d7+ Kf7 Bg2 Bc5 d6 Bb6 axb6 Rh8 Bd5 exd5 Kd2 Kf6 h4 Ke5 b7 Kf4 h6 a5 h5 g5 f6 b3 h7 b2 f7 a4 f8Q+ Nf6 Na3 b1B Nf3 g4 Nc2 g3 Ne5 g2 Bb2 g1Q Nd4 Ra6 Nf7 Be4 Bc3 Qh2 Qb1 Qc7 d8R Be6 Re1 Nbd7 b8R Nc5 Nf5 Kf3 d7 d4 Rbc8 d3 Ng7 Kg2 Ke3 d2 h6 Rg8 h8Q d1B Qh7 B6d5 Qf5 Bc4 Qh5 Bdf3 Re8 Rc6 d8R Qcg3 Red1 Ra6 R8d4 Nd5+ Kd2 Rg6 Qd6 Ne6 Qa3 Nc5 Re7 Re8 Rec7 Bf5 Rd7 Re3 Re7 B3e4 f3 Bh3 Bb4 Rb3 Bc3 Kf2 Rcc7 Bg2 Rc8 Bh1 Rd7 Nf6 Re7 Kg2 Ke3 Nd5+
1N1k2n1/p3r3/Q1n2B1b/Np1PR3/4Qb2/3nQB2/PrNKN2N/1b4n1 w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 c5 e4 g5 b4 f5 exf5 Qb6 bxc5 Nc6 Na3 Nb8 Rb1 Bd7 Rb3 Bc8 h4 gxh4 Rg3 hxg3 cxb6 Bb7 Rh3 Ba6 Rh1 Bc8 d4 h5 f4 e5 d6 h4 d5 h3 f6 e4 b7 e3 d7+ Kd8 f5 g2 f7 h2 g5 e2 f6 Nh6 g6 Rh7 g7 Bb4+ Qd2 Rh8 f8Q+ Kc7 g8N Bc3 d8N Bd7 f7 Nf5 Qb4 Nd4 f8Q Ndc6 Qf6 Ne7 Nc6 Be5 Qe3 Bf5 Nc2 Bf4 Na5 Nbc6 b8N Kd8 Nh6 Bh7 Qg6 Ng8 Ng4 Bh6 Kd2 e1B+ Kd3 Bh4 Ne2 g1N Bg2 B4g5 Qbe4 Bf4 Qge6 Bf5 Bf3 Rh7 Bb2 Re7 Bf6 Bh7 Na6 Rc8 Kd2 Bf5 Nb8 Bg6 Qa4 Bd3 Qee4 Rc7 Ncd4 Bb1 Qa3 Nh3 Rg1 h1N Nh2 N1f2 Nc2 Nd3 Rg5 Ng1 Re5 Nd4 Qa4 Rc5 Nb3 Nc6 Qa6 Rc3 Na5 Rb3 Re6 Rb4 Re5 Rb2
3bk1q1/6Q1/RNRbPQpq/Q1p2b2/R3P2q/1Q1B2b1/1K2Nn2/5Qb1 w - - 0 1 legal: proof: c4 a5 b4 e5 a4 c5 f4 b5 fxe5 bxa4 b5 Ra7 Qc2 Ra6 Qd1 Rg6 b6 Rg3 Ra3 Rf3 Ra1 Rb3 d4 f5 g4 h6 d5 Rb5 cxb5 Nc6 Bg5 hxg5 dxc6 f4 c7 Rh6 Ra3 Rf6 Ra1 Rf5 gxf5 Ke7 Bg2 Kf7 Bf1 Ke8 Kd2 d5 Kc1 a3 e4 g6 h4 a4 h5 d4 b7 f3 b8Q g4 h6 f2 h7 g3 h8Q g2 b6 d3 f6 a2 b7 a3 Qg7 Bd6 Ne2 g1B Nd2 Nh6 Qa8 Ng4 b8Q Bf5 Nc4 d2+ Kc2 Qc8 e6 Qd8 Qc1 d1Q+ Kc3 Qc8 Nb6 Qd2+ Kb3 Qf4 Qa5 Qh6 Rh2 Qd8 c8R Bg3 Rc6 Qh4 Rb1 a1B Qcc3 Bb2 Ra1 a2 Qc1 Bbe5 f7+ Ke7 Kc2 Bd6 Kb2 Qg8 Rg2 Bc7 Rh2 Bd8 Rh3 Bd6 Ra3 Bg3 Ra4 Bd6 Bg2 f1Q Bh3 Qfe1 Bf1 Qh6 Qc4 Qeh4 Qb3 Bg3 Qf4 Nf2 Qfe5 Bc7 Qec3 Bcd6 Qcc4 Qe8 f8Q+ Kd8 Qff7 Qg8 Qff6+ Ke8 Nf4 Bf8 Bd3 Be7 Ne2 Bd8 Qc1 Bd6 Qf1 Bg3 Rc1 Bd6 Rcc4 Bg3 Ra3 Bd6 Rca4 a1B+ Kb1 Bae5 Ka2 Beh2 Kb2 Bhf4 Rc4 Qg4 Qae1 Bg5 Ra6 Bgf4 Qa5 Bg3 Ra4 Qgh4
7Q/2b3p1/n1Bp1B2/3b4/2B1qRQ1/1bKP1QNQ/P3N3/kqQ1b1qq w - - 0 1 legal: proof: c4 b5 e4 a5 e5 Ba6 e6 Bc8 b4 axb4 cxb5 Bb7 Ne2 Ba6 Ng1 Bc8 f4 h5 Ba3 c6 Nf3 d6 Nc3 Ra7 Ng1 Rd7 Nb1 Qa5 exd7+ Kd8 Ke2 e5 Bb2 e4 Bc1 Ke7 Ke1 Qd8 Na3 f5 Rb1 Rh6 Rb3 Qa5 Rg3 Re6 Rg4 Na6 Nc4 Qd8 Na3 Re5 g3 Nc7 fxe5 Nd5 Rg6 f4 g4 Ne3 Rg5 Nf5 gxf5 Nh6 Rg2 Ng8 Rg4 hxg4 h4 f3 h5 f2+ Ke2 b3 d3 b2 Kd2 b1Q b6 e3+ Kc3 g3 e6 Kf6 h6 Ke5 e7 c5 e8B e2 b7 e1B+ Bd2 c4 b8Q g2 h7 Nf6 h8Q Qe7 d8Q Be6 Bc6 Nd7 f6 Nc5 f7 Na6 Ne2 g1Q Bfg2 f1B Rh4 Bf2 Bgd5 Bg2 Bg5 Qe8 Nc2 Be7 Qa5 Bd8 f8Q Bc7 Qc5 Bf7 Be6+ Bd5 Ncd4 Bg8 Qa8 Qg6 Qad8 Qe4 Ng3 Qgh1 Qg4 Qbg1 Kc2 c3 Qff3 Bf7 Qc4 Bg8 Kb3 c2 Qd7 c1Q Nde2 Qb1+ Kc3 Bf7 Kd2 Bg8 Qc1 Bb3 Bc4 Bd5 Nc3 Kd4 Bf6+ Kc5 Nce2 Kb4 Qd1 Ka3 Kc3 Qe3 Qh3 Qe5+ Rd4 Qf4 Qdg4 Qe4 Kd2 Kb2 Qc1+ Ka1 Kc3 Qg6 Rf4 Qe8 Nf5 Qe4 Nfg3 Be1+
q1R1R1Bk/1r1BRpN1/3n2P1/bb1R3r/3p3K/1Q1nR3/P1n1B1p1/4Q3 w - - 0 1 legal: proof: d4 a5 b4 c6 bxa5 c5 dxc5 e5 f4 b6 axb6 Ra4 fxe5 Ra8 g4 g5 Nc3 h6 Bf4 gxf4 Ne4 h5 g5 Qf6 Nf2 Qd8 Ng4 hxg4 Kf2 d5 h4 d4 e4 f3 Kg3 f2 c4 Nd7 e6 Rh7 c6 Ra6 c7 Ra8 e7 Ra5 c5 Bb7 c8R Ngf6 h5 Ra8 e5 Rh6 c6 Ra5 c7 Bf3 b7 Be2 b8Q Rd5 Nf3 Bb5 Qe1 Bd3 Be2 f1N+ Kh4 g3 Qb3 g2 Rh3 Rh8 h6 Rg8 h7 Nb6 h8R Ra5 Rh5 Ng4 Rd1 Kd7 e8B+ Ke7 e6 Nc4 Bd7 Nf2 Rd2 Nfe3 Rc2 Kd6 e7 Rb5 e8R Rh8 Bf5 Rb7 Bh7 Kd5 Rc1 Nc2 Bg8 Bb4 Re7 Kd6 g6 Ba5 Ng5 Qe8 Ne6 Qf8 Rh7 Ke5 Ng7+ Kf6 Rhe3 Nd6 Rh5 Bb5 Rce8 Nd3 c8B Rh6 Bd7 Rh7 Kg3 Rh8 Rd5 Rh5 Ne6 Na1 Rcc8 Nc2 Nc7 Kg7 Ne6+ Kh8 Ng7 Nc4 R7e5 Qa3 R5e7 Nd6 Kg4 Bd8 Kg3 Qa8 Kg4 Ba5 Kg3 Rf5 Kh4 Rh5+
1Q1Q3q/p1R3Q1/4rNq1/b1nb2Q1/K1p1Bb2/Pp1PRQ2/k7/NN5n w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 h5 g4 d6 bxc5 d5 c4 dxc4 gxh5 b5 d3 e5 Qc2 e4 Ke2 e3 Bd2 exd2 Qd1 Na6 Nc3 Rb8 Nb1 Rb6 cxb6 Qd6 Qc1 Qd4 Qd1 Qd8 f4 Kf7 h4 g5 h6 b4 f6 Ke6 b7 Kd5 b8Q b3 f7 g4 f5 g3 h5 g2 a3 Nc5 f6 Qd7 h7 Qb7 h6 Be7 f8Q Nd7 f7 Bd6 Qg7 Bf4 f8N Qb5 Qg5+ Ne5 Nd7 Qa6 Nf3 g1B Ne1 Kd4 Bg2 Qg6 Nf6 Nd7 Be4 Ne7 Rh2 Rf8 h8Q Bb7 h7 Re8 Qg7 Nf5 h8Q Nc5 Rh7 Re6 Qhd8+ Bd5 Ra2 Bgh2 Rc2 Bc7 Rb2 Bhf4 Nc2+ Ke5 Na1 Kd4 Qf1 Ba5 Qf3 Ng3+ Kd1 Nh1 Rc2 Qf7 Rc1 Qh5 Ke2 Qh3 Re1 Qg3 Qgf8 Qh3 Rc7 Qh8 Qfg7 d1Q+ Kf1 Qd2 Re3 Qb4 Ke2 Qa4 Nd2 Kc3 Nb1+ Kb2 Kd1 Bb6 Kd2 Ka2 Kc3 Qae8 Kb4 Qeh5 Kb5 Qg6 Kb4 Ba5+ Kb5 Nb7 Ka4 Nc5+
1rrn2rN/1QQQ4/pK1PpkBQ/Rp6/qR6/1Q1rn3/2R2P2/3rB3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 c4 gxh4 cxd5 f5 exf5 Bh6 a5 Be3 b3 Bb6 axb6 Ba6 Nc3 b4 Nb5 c6 Nd4 Bd3 Nb5 Bc4 bxc4 cxb5 Ke2 Kf7 Kd3 h5 Kd4 a6 Kc5 b3 d4 h3 g4 h4 g5 b2 f6 b1R d6 h2 d7 h3 g6+ Ke6 g7 Rb4 f7 Qe8 d8Q Rh5+ d5+ Ke5 f8Q Nh6 g8Q Qf7 b7 Qg7 Ne2 Qg1 Kb6 Nf7 c5 Qg3 c6 Qb3 c7 Rhh4 c8R Rhd4 Rc2 Nd6 Ra5 Nc6 b8Q Qa4 Qh6 Rbc4 Qdc7 Rd3 Qbb7 Rb8 Bd2 Nd8 Be1 e6 Qg3+ Kf5 Nf4 Rcc3 Rg1 h1R Ng6 h2 Nh8 Rc5 Rg2 Rg1 Be2 h1R Bh5 Rcc3 Bg6+ Kf6 Qge3 Rc4 Rg4 Nf5 d6 Rcc3 Rb4 Rg4 Qd7 Rcc8 Qc5 Ne3 Qcc7 Rhg1 Qb1 Rgd4 Qa2 Rd1 Qb3 R4d3 Bf7+ Kf5 Be8 Rg8 Bg6+ Kf6
2q2RnR/NN2B2b/4Rr1n/2Q1P2P/qr2nq2/Q3Rbnk/2KQ1n2/R7 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 b4 Kf7 d4 Kf6 h4 Kf5 b6 f1B d6 a5 d7 g5 b7 c5 b5 c4 e3 c3 h5 a4 b6 g3 d5 Kg4 f5 a3 f6 g2 f7 a2 f8Q Ra6 d6 Nc6 b8R Bb7 e4 Qc8 d8R Nce7 d7 Bd3+ Kb3 c2 e5 Nf5 Re8 Nfh6 d8R Bh7 Ba3 c1Q Nh3 g1N Be7 Qf4 Na3 Ne2 Nb5 f2 Na7 f1N Qd2 Bf3 b7 Nfg3 Rhe1 Nc3 Re3 Nce4 Nf2+ Kh4 Nd3 Rf6 Ra8 g4 b8Q Kh3 Qb6 Nh1 Qb7 g3 Qc6 g2 Nc5 g1N Kc2 Nhf2 Nb7 Ne2 Qc5 N2g3 Rd6 Qc6 Re6 Qa6 Rb1 a1Q Reb8 Qd4 Ra1 Qd7 Qa3 Qa5 Qc8 Qdd8 Qc6 Qc8 Qcc5 Qa4+ Qb3 Qcd7 Bd6 Ne7 Na5 Rd8 Nb7 Qdc6 Rc8 Rd7 Rh8 Neg8 Be7 Rd4 Rb8 Rb4 Rf8 Qab5 Qbd3 Qc8 Qa3 Qa4+
R1r1Q1nN/r3bR1P/1Q1n1n2/1Nn1R1N1/k1qnN3/P5K1/1q1qB3/1N5b w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h6 g4 Nd7 g6 Nb8 g7 Ra5 Na3 Ra7 Nb1 Ra8 g5 Bd7 g6 Qc8 Bb2 Qd8 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 d4 e5 h4 b5 f6 c5 h5 c4 h6 e4 f7 c3 a3 e3+ Kf3 b3 h7 b2 d6 Kc6 d7 e2 Qe1 g4+ Kf4 b4 d5+ Kb5 d6 c2 Qc3 c1Q+ Kg3 b3 Qc7 Be7 f8N Bb7 Nf3 Ka4 Qb6 e1N Ng5 Nd3 Rh5 Bh1 Nfe6 Nc5 Nd4 Ra7 Nb5 Qc2 Be2 Qc4 Qb7 Qa5 d8Q Qd2 Qbb6 Nbd7 Qe8 Ndf6 d7 Bg2 d8N Bh1 Kh4 g3+ Kh3 g2 Kg3 g1N Ndf7 Nf3 Ra2 Nh6 g8R Nd4 Rf8 Nhg8 g7 Ng4 Rh4 N4f6 Re4 Qd1 Re5 Qdc2 Nd2 b1N Rb2 Nc3 Nb1 Qd2 Ra2 Nh6 g8N b2 Ra1 Nfg4 Nf6 Ng8 Nfe4 N4f6 Nc7+ Ncb5 Ra2 Ncd7 Ra1 Nd6 Nb5 Nh6 Ra2 Rg8 Nh8 Nc5 Rf7 Rf8 Qec6 Rc8 Qd7 Ra6 Qe8 Nhg8 Ra1 Bd8 Ra7 Be7 Ra8 Ra7 N1c3+ Kb3 Rf1 b1Q Rff5 Qa1 Nb1 Ka4 Rf4 Qab2 Rf2 Ng4 Rf7 N4f6
1B1R4/Q2n3r/1qbRB3/bk6/3BQQ1P/Qn3qQ1/qP1rnb1N/3K3b w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 h4 Kd7 d4 a5 b6 c5 b7 e5 g6 f3 d6 Kc6 f6 g3 g7 e4 d7 g2 f7 f2+ Ke2 a4 d5+ Kb5 d6 a3 Qc2 e3 Nh3 g1B Bd2 c4 Be1 a2 Qb1 c3 Qh7 c2 Qe4 c1N+ Kd1+ Ne2 Ng5 Qb6 d8Q Nd7 b8B Nh6 g8Q Bb7 Bh3 f1B Rh2 Nf5 Qde7 Bc6 Nf3 Bf2 Qg3 Nfd4 Bc3 Nb3 Be6 Rh7 Bd4 Bg2 Rc1 Bh6 f8Q a1Q Qff4 Bh1 Rh3 Qaa5 Nh2 Qa2 Rc3 Ra4 Rd3 Rc4 Qef7 Rc2 Qfg7 Ndc5 Qa7 Nd7 Qa3 Bg5 Rd2 Bd8 Qa7 Ne5 d7 Bc7 d8Q Nd7 Qh8 Nf8 Qa3 Qa7 Bg7 Ned4 Bf6 Ba5 Qhg7 Qb6 Bfe5 Nf3 Qc7 Ng1 Rd8 Nd7 Qgf3 Rc4 Bc3 e2+ Kc2 e1Q Qa7 Qee3 Kd1 Ne2 Q3g4 Qed4+ Rd3 Qe3 Qgg3 Qf3 Rd6 Rc5 Bh8 Rc2 Bd4 Rd2+
2q3N1/NNk2B1Q/1b6/NqBrq3/BR2P3/rrr2Q1b/1P1nNb2/K1n5 w - - 0 1 legal: proof: h4 e5 a4 b5 axb5 d5 c4 g5 hxg5 a5 cxd5 a4 f4 exf4 Qc2 a3 Qd1 a2 Na3 Nf6 Rb1 Ng8 Rh3 a1Q Rh1 Qxb1 d4 Kd7 Kd2 h5 Kc3 f5 g4 c5 b6 f3 b7 c4 e3 f2 g6 h4 d6 h3 g7 h2 d5 f4 g5 f3 g6 Rh3 Qb3 Na6 b8Q Nf6 g8B Nb4 g7 Qf5 Nb5 Ra3 Ne2 Qe5+ Kd2 Qc7 Qa7 Na2 Kc2 c3 Kb1 c2+ Ka1 Ne4 Bf7 Nd2 g8N Rh5 Rg1 h1R Rg4 R1h3 Rb4 Bg7 Bg2 f1Q e4 f2 Qf3 Kd8 d7 Bh6 Qb7 Be3 Na7 Bb6 Bh1 Qc4 Bg2 Rg3 Bh3 Qb5 Bhe6 Qh3 Be8 f1R B6f7 Nb1 Bf4 c1B Be3 Nd2 Bc5 Qhe6 Qa6 Kc7 d8N Rd1 Ndc6 Rhh3 Qa4 Bd7 Na5 Qg4 Qab3 Bf5 Qh1 Rc3 Bc6 Rhg3 Qh7 Bc8 Bce8 Qge6 Bd7 Qe8 Bc6 Bh3 Bd7 Qc8 d6+ Kd8 Bde8 Rgd3 d7 Kc7 d8N Rd5 Nab7 Rg1 Ndc6 Rgg3 Qd1 Rcb3 Nca5 Rgc3 Nd6 Nb1 Qh1 Be3 Qf3 Bf2 Ndb7 Nd2 Bc6 Qd3 Ba4 Qc4 Qg4 Qb5 Qf3 Nc1+
2N2q1k/n1brqn2/2nrR2q/1B1R3P/Bn2bR1Q/3RPQ2/6K1/2r3RB w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bd6 b3 Bc8 Bb2 Bf8 g4 Qd6 Bd4 Qe7 Be3 Qd8 Nc3 h6 Bf4 gxf4 Ne4 h5 g5 Nh6 Nf2 Ng8 Ng4 hxg4 Kf2 c5 d4 a5 h4 f5 h5 Kf7 d6 Kg7 d5 g3+ Kg2 c4 d7 a4 e3 c3 e6 a3 g6 a2 b4 c2 e7 c1Q e8B Qe7 d8Q Rh6 d6 Qc6+ Nf3 Ra7 d7 Kh8 b6 Bb7 b5 Qce6 Qd5 Nc6 Rd1 a1N Ng5 Nc2 Rd3 N2b4 Ne4 Q6d6 Rg1 f3+ Kh1 f2 Kg2 Qde6 Nd6 f4 Nc8 Ba8 Be2 f1R b7 Rc1 b8R Rc7 b6 Na7 Qf3 Be4 b7 Q6d6 Kh3 g2 Bd1 Bg7 Ba4 Be5 Ra8 Qb6 b8R Qa6 Rb5 Rb7 Rbd5 Bc7 Re5 Qaf6 Re6 Qff8 Rgd1 g1N+ Kg2 Nh3 Rg1 Ng5 Rb8 Nf7 Ra8 Qd6 Qh4 Ne7 d8R Nec6 Rb8 Qfe7 g7+ Kh7 g8B+ Kh8 Rg6 Qdf6 R8d5 Qg7 Rg4 Rd6 Rg6 Qh6 Re6 Na5 Beb5 N5c6 Rc5 Bd8 Rcd5 Rbd7 Nb6 Bc7 Rf8 Nce5 Nc8 Nec6 Bh7+ Kg7 Rc3 Nh8 Rcd3 Na2 Kh3+ Bg6 Qe2 f3 Bb3 f2 B3a4 f1Q+ Kg3 Nab4 Qf2 Be8 Be4 Bg6 Bh1 Be4 Qg2 Qff7 Qf3 Qg8 Rff6 Qgf8 Kg2 Nf7 Rf4 Kh8
2bbr3/1q2Qr2/2Q1Pbn1/R1R4Q/N3Bkn1/2nBqPR1/1KR3nq/R7 w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 e4 f6 d4 Bf5 d5 Bd7 Nc3 Bc8 Be3 f5 Bd4 exd4 e5 Nf6 Ne4 fxe4 Ra3 Ng8 Ra5 Qf6 Ra1 Qd8 Kd2 Kd7 Kc1 a5 b4 h5 g4 c5 b6 e3 b5 a4 g6 e2 b7 e1N g7 h4 g5 d3 g6 h3 b6 a3 Rh2 c4 Qh5 c3 f3 a2 Rc2 h2 Ne2 Nh6 g8R h1Q g7 Nc6 b8Q Ra5 b7 Qe7 Qa8 Ng2 b8R Ng4 Rb5 Ra7 Rc5 Qh2 Ra5 Qf7 Rc5 Ne7 e6+ Ke8 Ra5 Ng6 d7+ Ke7 d8R Kf6 d6 Qb7 d7 Be7 Rde8 Bd8 Ref8+ Ke7 Rff5 Kd6 Rfc5 Qe5 Rd2 c2 Nc3 Qf4 Na4 Qh2 Re8 Rf8 g8B Rf7 Rf8 Re7 Bh7 Re8 Rb1 a1B Rg8 Baf6 Ra1 N6f4 Be4 Ng6 Rg7 Qd5 Qh6 Ke5 Qh5+ Kf4 Qc6 Qb3 Rg8 Qb7 Re2 Bc7 d8Q Bb6 Nc3 d2+ Kb2 d1N+ Ka3 N2h4 Qe7 Ng2 Na4 c1Q+ Kb3 Nc3 Rc2 Qe3 Kb2 Nf8 Rgg5 Ng6 Bfd3 Bd8+ Qb5 Nh6 Rg3 Ng4 Qb6 Qa6 Qc6 Rd7 Qf8 Rf7 Qe7 Qb7+
1r2Qn1k/7r/qQPbK1b1/R7/N1n1PqB1/2RBqq2/n4R1R/r1R1Q3 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 d4 c5 dxc5 Bg7 Bf4 Bf8 Nd2 b4 Ne4 b3 axb3 h6 b4 gxf4 b5 h5 g5 Qe7 Nf2 Qd8 Ng4 hxg4 Kd2 a5 Kd3 f5 Kc4 Kf7 Kd5 Kg7 h4 d6 e4 a4 c4 f3 b4 g3 c6 f4 b6 a3 c5 g2 b7 a2 h5 f2 g6 f3 e6 Rh6 c7 Qe8 c6 Na6 b8Q Kh8 e7 Bf5 c8B Rh7 Ne2 g1Q Qb6 Rb8 b5 Qf7+ Be6 Qg5 e8Q Qe3 h6 Be7 Rc1 a1R Rh2 Qf8 Nc3 Nb4+ Kc4 Nf6 Bd3 f1N Qe1 f2 Na4 Na2 Rh3 Ng4 Kd5 Nd2 Bc8 f1Q g7+ Kg8 Rg3 Bg6 Ke6 d5 Rf3 d4 Rf2 Ne5 Bd7 Rh8 Rc3 Kh7 g8R Qff4 Rf8 Bb4 Rf5 Ndc4 Rg5 Bf8 Rg1 Kg8 h7+ Kg7 Bc8 Nd7 Rh1 Bd6 Rg1 Rf8 h8R Rf7 Rhh2 Qfe2 Qbd8 Qf1 b6 Qfe2 b7 Q2f3 Bc2 d3 Qb6 d2 Bd3 d1Q Rg5 Qde2 Ra5 Ra8 b8R Qf1 Rb7 Rb8 Qc7 Q1e2 Rb1 Qf1 Rbc1 Q1e2 Qe7 Kg8 Qb6 Rh7 Qf7+ Kh8 Kd5 Nde5 Bg4 Nd7 Ke6 Nd2 Bb1 Qa6 Bd3 Nc4 Qe8+ Nf8+
1bQ1nk2/5Pq1/bQn2r2/BQ1R2rB/3r4/3n3B/N2q2BP/N1BK1br1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 b4 h5 g4 g6 g5 Na6 Ra3 Nb8 Rg3 Nh6 fxg6 Ng8 Rg4 hxg4 f5 Qa5 Kf2 Qb6 Ke1 Qd8 c4 e5 c5 d5 b6 a5 f6 d3 g7 g3 g6 d4 b7 a4 b5 g2 b6 e4 c6 a3 c7 e3 Qh5 a2 Qb5+ Nc6 b8Q a1Q b7 e2 Nf3 g1R Nc3 Ra5 Nd2 Bd6 Na2 Rh6 Nb3 Bf4 Qb6 Rag5 Qb5 Bh3 c8Q Bg2 Qa7 Bb8 Qab6 Qb2 Na1 d2+ Kf2 e1N Ke2 Qc3 Kd1 Bh3 Be2 Bf1 Bf3 Nd3 Bh5 Ne7 g8B Kf8 Be6 Nd5 f7 Nc7 Bh3 Ne8 Bg2 Qf6 Bh3 Qg7 Bg2 Ba7 b8B Qa5 Bc7 Bb8 Q6a6 Qb4 Ba5 Qd6 Qab6 Qd5 Kc2 d1B+ Kd2 Bb3 Bh3 Bc4 Kd1 Ne1 Bg2 d3 Bh3 d2 Bg2 Qgd4 Bh3 Nd3 g7+ Ke7 g8B Qg7 Bg2 Kf8 Bh7 Rf6 Bf5 Qd8 Kc2 d1R Bfh3 Re1 Kd2 Re4 Kd1 Rd4 Qbb7 Ne1+ Bad2 Rd3 Qb3 Ba6 Q3b5 Rd7 Qbc7 Bd3 Qcb6 Rgf1 Ba5 Rdd5 Kd2 Qd7 Rg1 Qd8 Bh1 Qd7 Rg3 Rg1 B1g2 Bf1+ Rd3 Qd6 Rd4 Qf4+ Kd1 Nd3 Re4 Rd4 Re5 Qf2 Rd5 Qd2+
2q3bn/B1n1R3/1Q1P3r/1R2Q2B/P1b2B2/4BnR1/K1nqrB1N/nnk5 w - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 h5 b4 axb4 e4 e6 f4 f6 e5 Bd6 Nc3 Bc5 Ne4 Bd4 Nf2 f5 gxf5 Bb6 Ng4 hxg4 Bc4 Bc5 Bd3 Be7 Bf1 Bf6 exf6 Ra6 Bh3 Ra3 Bf1 Ra8 h4 Kd7 d4 Kd6 Kd2 c5 Kc2 b5 Kb2 g5 a4 e5 f7 e4 f8B+ Ne7 f6 c4 f5 g3 f7 g2 h5 g4 h6 e3 h7 g3 f6 b3 Qd3 c3+ Kb1 b2 Bh6 e2 f8Q e1N f7 c2+ Ka2 b1B+ Ka3 b4+ Kb3 Ba2+ Kb2 b3 Qf5 Ba6 Be2 Qc8 Bhe3 Bc4 Bh5 Na6 Qh6+ Ng6 f8R Nc7 Nf3 g1Q Re8 g2 Nh2 Qf2 Rg1 Qd2 Re7 Ra6 Rb1 Re8 Ka3 b2 h8B Rc6 Bf6 Nh8 Bf2 Bab3 Qe3 Ba2 Bg5 Rb6 Qb3 Rc6 Bge3 Ra6 Rf1 g1N Qg5 Ngf3 Rg1 Rc6 Qb6 Bab3 Rg3 Ba2 Ra1 b1N+ Kb2 Qd1 Bcd2 c1N Qf5 Nc2 Bf4+ Ne5 Bde3 Bab3 Ra3 Ba2 Rb3 Qd2 Rb5 Nb3 Re6+ Kd7 d6 Nf3 Qf6 Re7 Re4 Re5 Qg5 Ke6 d7 Rd6 Qe7+ Kf5 d8B Rh6 d5 Ree6 d6+ Re5 Bc5 Ree6 Re1 Re2 Qg5+ Ke4 Qe5+ Kd3 Bdg5 Bg8 B4e3 Na5 Bgf4 Bac4 Rf1 Nb3 Ka2 Re1 Rh1 Ke2 Rhg1 Kd1 Rg7 Kc1 R1g3 Re2 Re7 Rf6 Qa5 Re6 Ba7 Rh6 Qb6 Nba1+
qQ3Qrn/B4n2/qNB1r2B/1nn3b1/2BQ2bk/K2N4/3PP1q1/4RqB1 w - - 0 1 illegal: No possible last move
qn1bK3/1QB5/1Rb3R1/kN1NR1b1/5N2/2R4R/qr1P2P1/1qnqQ1nq w - - 0 1 legal: proof: c4 b5 f4 a5 a4 d5 axb5 e5 cxd5 exf4 h4 g5 e3 g4 Be2 Ra6 Bf3 gxf3 Kf2 Rg6 Ke1 Rg5 hxg5 Qd6 Rh4 Qe7 Rh1 Qd8 Kf2 Kd7 b4 h5 g6 c5 e4 Kc7 g7 Kb6 e5 f5 d6 h4 e6 h3 e7 h2 e8N a4 d7 c4 Qc2 a3 Nh3 a2 Rg1 h1Q Re1 c3 Bb2 Nc6 Qd1 c2 Na3 c1N Be5 Be7 Nc7 Nf6 g8R Nd4 Rg6 Nde2 Bd6 Qg8 d8R Bb7 Rc8 Ng1 Re5 Nd7 Qe1 Bc6 Rb1 a1B Rb3 Bg5 Nd5+ Ka7 b6+ Ka6 b5+ Ka5 Rc7 Qa8 b7 Rb8 b6 Bc3 Rc8 Bb4 Bc7 Bbe7 Rc3 Bef6 Rh8 Bd8 Kf1 f2 Nb5 Rc8 Bd6 Rc7 b8Q Ra7 b7 Ra6 Qc8 Rb6 Na7 Rb2 b8R Qh2 Qb7 Qg3 Rc4 Qb3 Rc3 Qa2 Bc7+ Rb6 Nb5 Nd3 Qd1 Nf3 Qc8 Nc1 Bd6 Nb3 Ke2 Rb7 Kd3 f1Q+ Qe2 Qh1 Kc4 Ng1 Bc7+ Rb6 Rb7 f3 Qe1 Nc1+ Kd4 Qa1 Nd6 Qa2 Qe2 f2 Qb8 Nf6 Kc5 f1Q Rh7 Qd1 Qe1 Ka6 Rhh6 Rb2 Rb6+ Ka5 Nb5 Nd7+ Kd6 Qc2 Qg3 Qcb1 Qb7 f4 Qf2 f3 Nhf4 Nd3 Qe1 Nc1 Rh3 f2 Qe4 f1Q Ke6 Qbd3 Kf7 Qdb1 Ke8 Qd1 Qe1 Nb8+
3nkb1R/4r2r/P1n1BP1q/q1rK2Q1/2Q2R2/1QQB4/2Qqn3/Nnq1B3 w - - 0 1 illegal: No possible last move, all moves rejected
8/k2b2RR/r2Q2BN/3Q1b2/r3N2n/rn2KN1n/b1qPPpR1/2R1R2q w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 h4 Qd7 b3 Qh3 Bb2 Kd8 Bd4 Be7 Bf2 Bg5 hxg5 Ba6 g6 Bb7 Qc1 gxf2+ Kd1 Ke7 g4 Ke8 g5 Qc8 Kc2 Ba6 Qd1 Qd8 Kc1 Bc8 g7 Kd7 d6 h5 b6 Kc6 b4 Kb7 b5 f5 d7 a5 g6 c5 Nh3 h4 Rh2 c4 Qa4 f3 Qa2 f4 Ng1 a4 Qa3 c3 Rh3 c2 Qb3 a3 Qa4 a2 Rh2 h3 Qe4+ Nc6 Rg2 h2 Qe7 h1Q Qe4 Ne7 g8N Ra3 g7 Nd5 Nc3 Nce7 Nh6 Ng6 g8R Qc7 d8R Be6 Rc8 Nh4 R8g7 Bf5 Kb2 c1N Kc2 Nb3 Re1 a1R Kd3 Rf8 Rh7 Rf6 Rcg8 Ra4 R8g7 R1a3 Rc1 Ka8 b7+ Ka7 b8R Rfa6 Rc8 Bd7 Re1 Be6 Qf5 Bf7 Ne4 Be6 R2g6 Bg8 Bh3 f1B Rg3 f2 Rg2 f3 Bg4 Bf7 Bh5 Nf4+ Ke3 Nh3 Bg6 Qc4 Qd5 Qc2 Rg5 Bg2 Rc6 f1B b6+ Ka8 b7+ Ka7 Rc7 f2 Nf3 Be6 Rc5 Bd7 Rg3 Qb1 Rcc1 Qc2 Ng1 Bf3 Rg2 Bfg4 Nf3 Bge6 Rg1 Ng5 Rg4 Bh3 Rg2 Bhf5 Ng4 Rd6 Nh6 Nh3 b8Q+ Ka6 Qbb5+ Ka7 Qb4 Rda6 Qbd6 Na1+ Qd3 Ba2 Qd5 Nb3 Qd6 Ka8 Q3d5+ Ka7
K1N4R/2N4N/1B4N1/p1rq4/1nbRq1b1/1q1N2P1/1rPQnQrk/4Qn2 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 f5 exf5 g6 f6 Bg7 Ra5 Bh6 Ra1 Bf8 g4 Bh6 f4 Bg7 f5 Kf7 Bd3 Bh6 Be4 Bf4 Bd3 Bg3+ hxg3 Kf8 f7 Kg7 Ra3 Kf6 Ra1 Ke5 f6 Kd6 Bf5 gxf5 Kf2 Ke5 Kf3 h5 f8N d5 b4 a5 g5 f4 g6 h4 g7 d3 b6 d2 b5 d4 b7 d3 f7 h3 b6 h2 Na3 Nc6 b8Q+ Kf5 b7 e5 Nd7 e4+ Kg2 f3+ Kf2 Kg4 Ke3 Qb6+ Nc5 Nd4 f8N Be6 Nh3 Ne7 g8N Rh5 Ng5 Bc4 Qe1 d1B Nb5 f2 Qa7 d2 b8Q Nec6 Ng6 Nb4 Nh7 Kh3 N8e7 Ne2 Qd6 Rb8 Nc8 Rd5 Nc7 f1N+ Kf2 e3+ Kf3 Re5 Nd3 Rc5 Ke4 Qb5 Qd5 Qa4 Ke5 Qb3 Kd6 Rbb5 Ra4 Rb7 Rg1 h1Q Kd7 Qe4 Rh1+ Kg2 Bb2 Rb8 Bd4 Rbb5 Nf6 Rb8 Rh8 Kg1 Nh7 Kh2 Kd8 Ng1 Ra1 e2 Nb2 Rc6 Kd7 Qa4 Ra3 Na2 Rd3 Rb3 Qac5 Nb4 Qf8 Qa2 Bb6 Rc5 Qff7 Ne3 Qef1 e1R Q7f5 Re2 Qe1 Rg2 Qff2 Bg4+ Kd6 d1Q Rd2 Bce2 Qg5 Qdb1 Rd4 Nf1 Qgd2 Ba6 Nd3 Ne2 Qed1 Qbb2 Q1e1 Qc3 Na8 Rb2 Nc7 Rf5 Kd7 Qg8 Kd6 Qcb3 Kd7 Bc4 Kd6 Nd5 Kc6 Qge6+ Kb7 Nb4+ Kb8 Rc5 Ka7 Q6d5 Kb8 Nc6+ Ka8 Nb4+
q2nk1n1/r6b/p2Q4/N6R/P1r2BP1/nQrN1NqN/b1bRK3/5NR1 w - - 0 1 legal: proof: c4 d5 cxd5 c5 g4 g5 b4 e5 bxc5 e4 Bg2 Bd6 Bf3 Bg3 hxg3 Nd7 Bg2 Nb8 f4 gxf4 Bf3 exf3 e4 h5 d4 b5 a4 f5 c6 a6 c7 b4 d6 b3 g5 f2+ Ke2 f1N e5 h4 g6 h3 g4 b2 d7+ Ke7 d5 h2 e6 Rh3 d6+ Kf8 Nd2 b1B Ngf3 Qh4 d8N Nc6 g7+ Ke8 e7 Be6 c8R Ra7 Nf7+ Nd8 N7e5 Qg3 Rc2 Bea2 Nd3 Ne3 Nf1 Nc4 Rd2 Bc2 Rg1 h1Q d7+ Kf7 e8N Na3 Nd6+ Ke7 Nh4 Qa8 Nc4 Kf7 Na5 f3+ Ke3 f2+ Ke2 f4 Nf3 Ke7 Rb1 Kf7 Rb5 Ke7 Rh5 Kf7 Nb2 Bh7 Nd3 Ke7 Ne3 f1R Qb3 Rd1 Qb6 Kf7 Nf1 Ke7 Qd6+ Kf7 Bb2 Rc1 Bd4 Rc4 Be5 Nb7 d8N+ Ke8 Ne6 Nd8 Nh4 Rd4 Ng5 f3+ Ke3 f2+ Ke2 Rc4 Nhf3 Rh1 Nh3 Rh2 Ne3 Rc3 Bf4 f1B+ Kd1 Bg2 Ke2 Rh1 Nf1 Rc4 Nfg5 Bge4 Nf3 Beg6 Nc5 Bc2 Nd3 Rh2+ Ndf2 Rg2 Ne1 Qh2 Be5 Rg3 Bf4 Rb3 Nf3 Qg3 Nd3 Nh6 Qb6 Rbc3 Qb3 Ke7 g8Q Kd7 Qd5+ Ke8 Qd6 Ng8
1q5Q/3b1k1P/2Qb1N2/2n1R3/B2nP1q1/1qp1n1Kb/r3rRRQ/B3R1R1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 gxf5 Ne7 Nc3 Ng8 Ne4 h6 Nf2 h5 Ng4 hxg4 Kf2 g5 e4 a5 d4 c5 h4 c4 b4 a4 d6 a3 d5 c3 f6 a2 h5 f3 f7+ Kd7 b6 Bh6 f8R Qe7 b7 Qd8 b5 Ra4 b6 Ra5 Ne2 Nf6 Qa4+ Nc6 Kg3 f2 b8Q Bg7 Qc4 Nd4 h6 Ra7 Rg8 Bf8 b7 Ke8 d7+ Kf7 d6+ Nd5 Qc6 Ne3 Nf4 Qb6 d8R Bd7 Bb2 Qb3 Rc1 a1N Re1 Ra2 Bb5 f1B Nh5 Bh3 Nf6 Rh7 Ba4 Rg7 h7 Rg6 Kf2 g3+ Kg1 g2 Kf2 g4 Kg3 Rg5 Rhg1 Rf5 Rg6 Rf2 Re8 Re2 Re5 Be7 Qh8 Bf8 Kf4 g3 b8Q Be7 Qbc7 Qb8 Rg8 Nab3 Ba1 Nc5 Rg4 Be8 d7 Bd6 d8R+ Bd7 Rdg8 Qb3 Rgf1 g1Q Rf2 g2 R8g6 Qf1 R6g5 g1Q Rg2 Qb8 Kg3 Qb3 Rb1 Qfd1 Rg6 Qd3 Re1 Qdb1 Kh4 Na6 R2g3 Qb7 Ref5 Bb4 Qf4 Qb2 Re5 Qb8 R3g4 Qb3 Qh2 Qg2 Rg8 Qf3 Rgg1 Bd6 R8g2 Qf5 Kg3 Nc5 Qd5+ Qe6 Qc6 Qg4+
KQ2Rrq1/bP5r/BN2p2k/Nb2BQ1n/Qq1bP3/3N2nQ/n3r3/4Q3 w - - 0 1 legal: proof: c4 a5 a4 b5 axb5 g5 f4 d5 fxg5 Be6 cxd5 Bc8 g4 h5 b4 axb4 g6 Nf6 g5 Ng8 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Kf2 c5 Ke3 f5 h4 c4 Kd4 b3 Kc5 c3 e4 f4 d4 f3 d6 e6 g7 Kf7 b6 Kg6 b7 b2 d5 c2 h5+ Kh7 h6 g3 Qe1 g2 Nh3 g1B+ Nf2 Be7 Na3 b1N Bb2 c1Q+ Nc4 Qe8 Kb6 Nc6 d7 Ra1 d8N Bd7 d6 Kg6 h7 Nb4 Nc6 Bf6 N6a5 Nd2 Ka7 Qf7 Ka8 Bc6 d7 Ra3 d8Q Ra2 Qd5 Qb1 Qb5 Be5 Qa4 Nf6+ g8Q+ Qg7 Bd3 Nf1 Qf8 Ng3 Rh3 Bb8 Nb6 Ba7 Ba6 Bb5 Nd3 f2 Qb8 f1R Be5 Qf7 Rh1 Kg7 g6 Re2 Rh5 Na2 Rg5 Kh6 g7 Bd4 g8Q Qb4 Qgf8+ Qg7 Rg4 Kh5 Rg6 Qf7 Rg8 Qg6 Qf7 Rh1 Rd8 Rf8 h8Q+ Kg5 Re8 Qg8 Qh3 Rhh2 Qg2 Rh7 Qh3 Nfh5 Qff5+ Kh6
3k3n/P1pP3r/2Q4K/Qb2Br2/nqb1B1B1/Qq1Q2N1/qRQ1N3/1n1b4 w - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Nd7 a4 Rb8 h4 Nh6 Ra3 Ra8 Rf3 Rg8 Rf4 gxf4 g5 Rh8 g6 Nb8 Bd3 Ng8 Ba6 Bh6 Bf1 Bg5 hxg5 Qd6 Ba3 Qd7 Bc1 Qd8 Kf2 e5 Kf3 b5 Kg4 e4 Kh5 f3 d4 e3 a5 h6 f7+ Ke7 f8Q+ Kd7 g7 e2 f6 e1Q a6 b3 a7 b4 d6 b2 f7 b3 d5 f2 g6 Ba6 Bf4 Qe6 Nd2 b1Q Rh2 b2 Bh3 f1B Be5 Bac4 Ne4 Ne7 g8B Rh7 g7 Qa2 Bg4 b1N Ng3 Ng6 Qc2 Na6 N1e2 Nh8 Qe8+ Kc8 f8Q Nc5 Qfe7 Na4 Qc6 Qf8 Bf7 Rb8 g8Q Rb5 Bg6 Ra5 Qg5 Bb5 Qe3 Kd8 d7 Qb3 Qg7 Qfb4 Be4 Qa2 Qa3 Bc4 Kh4 h5 Kg5 h4 Qf7 h3 Qh5 Qf7 Rg2 h2 Rf2 Rg7+ Kh6 h1B Qf5 Bf3 Qg5+ Qbe7 Qgd2 Rb5 Qa5 Qb4 Rg2 Qfe7 Rf2 Qbb3 Rg2 Qeb4 Rf2 Ke7 d8Q+ Kf7 Nd4 Nac3 d6 Bcd3 Qd1 Na4 Bf4 Rf5 Be5 Bb5 Rb2 Bfc4 Qc2 Bd1 Nde2 Ke6 Qg8+ Rf7 d7+ Ke7 Qg5+ Kf8 Qgd2 Ke7 Qdd5 Kd8 Qdd3 Rh7+
R7/pBQn1rQn/3r2K1/qP1BQ3/2Q2bQ1/B2Nbr2/bP3qN1/1n3k2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 h6 Ra3 gxf4 g5 h5 Rg3 Kd7 Rg2 Ke8 Rg4 hxg4 Kf2 Kf7 d4 c5 h4 e5 g6+ Kf6 g7 f3 Ke3 g3 Ke4 c4 d6 f2 d5 c3 h5 c2 d7 g2 d6 Be7 h6 Rh7 Bg5+ Kf7 f6 Kg6 f7 c1R f8Q Rc6 Na3 Rb6 Nf3 g1B Bg2 f1N Nc2 Be3 Nce1 Ra6 Rh5 Qa5 d8Q Be6 d7 Bd6 Nd3 Ba2 Nfe1 Rc6 Qc7 Nf6+ Kf3 Kf5 d8Q Ra6 g8B Nd7 Qdc8 Rf7 h7 Nd2+ Kg3 e4+ Kh4 Rb8 h8Q Nb1 Qfg7 Nh7 Rh6 Rb7 Kh5 Bdf4 Be7 Rd6 Bh1 Rbb6 Ng2 Rdf6 Ba3 Rbd6 Nc5 Ke5 Qdg4 Kd4 Nd3 Bf2 Nh4 e3 Bb7 e2 Ng2 e1Q Rg6 Be3 Rg5 Re7 Bgd5 Rf7 Qcg8 Qf1 Re5 Qg1 Re8 Qf2 Ra8 Bc1 Nge1 Ke3 Ng2+ Kd2 Qgc8 Be3 Qhe8 Rf3 Qee5 Ke2 Qcc4 Kf1 Q8c7 Nhf6+ Kg6 Nh7+ Qee6 Bf4 Qef6 Bce3 Qfe6 Ndf6 Qe5 Nd7+
n3B1r1/2bRQPnN/q7/1NNBQn1k/p1QnP3/rQ1rQn1K/8/1b6 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 h4 Bb7 hxg5 Bc8 d4 f6 b4 Qd7 d6 Qd8 d5 f5 e4 f4 Be3 fxe3 Ra2 Na6 Rd2 Nb8 Rd4 exd4 g4 Kf7 f4 Kg6 d7 c5 d6 a5 b6 h5 b7 d3 f5+ Kf7 f6 Kg6 b5 a4 b6 h4 Nh3 c4 Nc3 e2 Kf2 e1N Nb5 d2 Qb3 d1R Qe3 Qe7 d8Q c3 d7 Qe6 Qe7 c2 d8N Nf3 Kg2 Na6 b8Q c1N b7 Nb3 Qe5 Nh6 b8Q Rd3 Nb7 Nbd4 Nc5 Nhf5 Be2 Bb7 Rd1 Ng7 Qc8 Qc6 Qce6 Ra3 Q6b3 Rg8 Bc4 Qe6 Bd5 Rd8 Bc6 Nc7 Be8+ Kh7 Rd3 Na8 Rd2 Qa6 g6+ Kh8 g5 Bd5 Rd3 Bc4 Rd1 Bd3 Qc4 Bb1 Qcb3 Ngf5 g7+ Kh7 Rd3 Ne2 Rd7 Ned4 Q7e6 Bd6 Qe7 Bc7 Qc4 Ba5 Qcb3 Be1 Qc4 Bg3 Qcb3 Bf4 g6+ Kh6 Ng5 Kh5 Kh3 Bh2 Nh7 Bg3 Qed5 Bc7 Qdd6 Rf8 g8Q Ng7 Qgc4 Rg8 Kg2 h3+ Kg3 h2 Kh3 h1N Qde5+ Ngf5 Qed3 Ng3 g7+ Kh6 Qdc3 Nh5 Qe1 Rh8 g8B Nhg7 Bd5 Rg8 f7 Kh5 Qee3 Rb8 Qh2 Rb6 Qhe5 Rg6 Nd6 Rg1 Nb5 Rd1 Qf8 Rd2 Qfe7 Rd3
R1b4N/n1PQ4/1rrR1BR1/P3Q1nR/2rR2p1/4n3/4Nknq/2bKn1N1 w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 dxc5 h5 e4 g5 exf5 Qc7 b4 axb4 Be2 Ra6 fxg5 Ra3 g6 Qd8 g5 Ra8 Bg4 hxg4 a4 b5 c4 d5 h4 Kd7 c6+ Kd6 f6 Kc5 a5 e5 c7 e4 h5 d4 h6 b3 f7 e3 g7 d3 h7 Kd4 c5 e2 g6 b2 c6 d2+ Kf2 e1N Ke2 b4 Qc2 d1N Rh6 b3 Nc3 b1N Nh3 b2 Rh5 Na3 Ng1 b1R Bg5 Ra6 Qb2 Nh6 g8R Qd6 g7 Nc4 Ra4 Ne3 Bf6+ Qe5 Qa1 Ba3 f8R Bc1 Qb2 N3g2+ Kd1 Ke3 Rd8 Qf4 Nce2 Nf7 Qe5+ Kf2 Rd6 Qh2 Re8 Rb2 g8R Rbb6 Rg6 Ng5 Red8 Re8 h8N Re6 Rf8 Rb4 Re8 Rab6 Red8 Nd2 Rdg8 Rc4 Rb4 Nf1 Ra4 Ba6 c8Q Bb7 c7 Nc6 Qd7 Na7 Ra8 Bc8 Rd3 Rec6 Rd6 Rc2 Re4 R2c4 Red4 Nfe3+
rbK2N1N/5b1n/kNbnPn2/2Q4Q/6B1/1B1PQnqN/1rr2R1p/N7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 d5 fxe5 d4 h5 d3 cxd3 Bc5 d4 Bb4 d5 Bf8 b4 h6 g4 Nd7 Rh4 Nb8 Bb2 Bf5 Bd4 Bd7 Bf2 Be6 Rh1 Bf5 Bh4 Bc8 Ra3 Qf6 Rg3 gxh4 g5 Qd6 g6 Qd8 Rg5 hxg5 Kf2 Kd7 Ke3 a5 Kd4 f5 e4 f4 d6 c5+ Kd5 c4 d3 h3 b6 g4 h6 a4 h7 f3 b7 a3 b5 a2 g7 a1R b6 f2 Rh2 c3 Nd2 g3 Be2 f1B Rf2 h2 Nb3 g2 Nh3 R1a2 Na1 Qh4 e6+ Kd8 e5 g1N d7 c2 Bh5 c1N Bg4 Nce2 Qc2 Nd4 Qc5 Nb5 Qe3 Nh6 g8B Nf3 Bf7 Rg8 h8N Bg2 Qc5 Rb2 Qe3 Nc6 b8N Qg3 b7 Kc7 d8N Nd6 e7 Ncd4 e8Q Kb6 Nd7+ Ka6 b8Q Ne6 Kc6 Neg5 Kc7 Nh7 Nb6 Be6 Qc6 Bd5 Ne6 Rg5 Qcc5 Ng8 Qd8 Ngf6 Qe8 Bh6 Bg8 Rh5 Nf8 Bf4 Qg6 Bf7 Qf5 Ng1 Qg6 Bc6 Qg5 Rh4 Qh6 Nf3 Qh5 Bfe8 Bb3 Bf7 e6 Be5 Bf5 Rc4 Bg4 Rcc2 Nc8 Nf5+ Kd8 Bb8 Nb6 Rc1 Kc8 Rc4 Qeg5 Rcc2 Qge3 Nd6+
1kN2Q2/1B1R1b1B/2p2r1n/1nrbRr2/1R1KB1r1/nBP3PB/8/1bQ1q3 w - - 0 1 legal: proof: d4 e5 dxe5 a5 f4 Be7 b4 Bc5 bxa5 Bf8 e6 g6 e3 Ke7 e4 Kf6 e7 Ke6 e5 Bg7 Bd3 Kd5 e6 Kc5 Bf1 Kc6 g3 h5 Nd2 g5 Ndf3 Be5 fxe5 h4 Bf4 h3 Nh4 gxf4 Ng2 hxg2 Kd2 b5 Kc3 Kb7 e8R d5 h4 f5 a4 b4+ Kd4 f3 h5 f4 h6 b3 h7 f2 e7 b2 e6 b1B c3 f3 Rh4 Nh6 Qc1 Nd7 a6+ Kb8 a5 Bb7 Nh3 g1N Nf4 Ne5 Bh3 f1R Ng6 Rg8 h8Q f2 Qf6 Ra7 Qf8 Nc4 Ra4 Ra8 Rb4 Na3 Re4 Rg7 Re5 Qc8 Rd8 Ne2+ Kc5 d4 e8B d3 e7 d2 Ba4 d1R e8B Nd4 Ne7 Rg4 Bb3 Ndb5 Rd7 Bd5 Bg6 Qe8 Nc8 Bf7 Bf5 Rd6 Bh7 Rf6 a7+ Kb7 Nb6 Rc8 a8B+ Kb8 a6 Rf5 Bb7 Rf6 Rf5 Qe1 Be4 c6 Rh5 Re8 Nc8 Ree6 Rhd5 Rf5 Re5 Ref6 Bd3 Rh1 Be4 f1B a7+ Ka8 Rdd4 B1c4 Rd8 Kb7 a8B+ Kb8 Bb7 Bcd5 Rd7 Rhf1 Ba4 Rh5 Bb3 R1f5 Qf4 Rhh4 Qc1 Rgf4 Bd3 Rhg4 Bdc2 Rd4 Be4 Na7 Rb5 Rb4 Rb6 Rb5+ Kd4 Rc5 Rb4 N7b5+
kn6/B2bqb2/pnrP2N1/n6r/2Bb4/Q1r2BR1/R1RPR1K1/r3Q1R1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 Kf2 Kd7 b4 c5 h4 Kc7 f6 Kb7 h5 e5 g6 a6 g7 c4 h6 f3 f7 c3 h7 e4 b6 c2 b5 Bd7 Bb2 c1R Qe1 Nf6 g8B Bc8 Ra2 Bd7 Bd4 Rc3 Nh3 Bc5 f8Q Qe7 Rg1 e3+ Kg3 f2 Bg2 f1B Nf4 e2+ Bf3 Ra7 Ng6 Ka8 d6+ Rb7 Bc4 Nd5 Bf2 Rc7 b7+ Ka7 Qf4 Nb6 Qe3 Rc6 Kh2 g3+ Kh1 Rg8 h8R Bd4 Rh3 g2+ Kh2 Rf8 Rg3 Rf5 Qd3 Rc1 Qa3 Rc3 Qec1 e1N Be3 Nd3 Qe1 Nb4 Kh3 Rc7 Rc2 N8c6 b8R Na5 Re8 Nbc6 Kh2 Nb8 Ra2 Nd5 b6+ Ka8 Rc2 Rc6 Bf2 Qg5 Re2 Qe7 b7+ Ka7 Rh1 g1R Ra2 Bh3 Rc2 Rf1 Rhg1 Rh5 Be3 Bhf5+ Kg2 Nb6 Ra2 Bde6 Rc2 Bf7 Ra2 N8d7 b8R B5e6 Rh8 Nb8 Rc8 Ka8 Bf2 Bd7 Be3 Be5 Bc5 Bd4 Rc7 Nc8 Ba7 Nb6 Qa1 Rc2 Rb7 Na4 Rbb2 Rc3 Rc2 Rb1 Q3b2 Nb6 Qa3 Rb4 Q1c1 Rb1 Qe1 Ra1
1R1q1rQb/1N1P2N1/3b3P/N1BR2p1/b3n1n1/rQNR2n1/n1N4r/2k2K2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 g4 Bd7 f4 gxf4 g5 Be6 g6 Bc8 g7 Kd7 Be2 Ke8 Bh5+ Kd7 Bg6 hxg6 Ra4 Ke8 Ra6 Nf6 Ra1 Ng8 b4 Kf7 h4 Kf6 d4 e5 h5 Kg5 f6 c5 d6 a5 d7 c4 d5 e4 f7 c3 b6 e3 b5 f3 d6 Kf4 h6 f2+ Kf1 a4 b7 a3 b6 c2 Rh3 a2 Qh5 g5 Qd1 Na6 b8R Nc5 b7 Nf6 g8Q Nce4 Ke2 f1N Nc3 Ra3 Nf3 Ng4 Nd4 Nfg3+ Ke1 Nf5 Kf1 Be7 Bb2 c1N Qb3 Bf8 Nc2 Be7 Rb1 a1B f8N Na2 Rd1 e2+ Kg2 e1R Rhd3 Qa5 d8N Re2+ Kf1 Rh2 d7 Bd6 Rd5 Qc7 Nfe6+ Kf3 Qg6 Rf8 Qg8 Qa5 Ng7 Qb6 Nc6 Qd8 Bc1 Bb2 Be3 Ba1 Bc5 Bb2 N2d4+ Ke3 Na5 Ba1 Re1+ Kd2 Re3 Bb2 Rd3+ Kc1 Nc2 Ba1 Ra8 Bb2 b8N Ba6 Nb7 Bb5 Nc6 Ba4 Rb8 Ba1 Nca5 Bb2 Nd1 Bbe5 Nc3 Bd4 Ne6 Bh8 Ng7 Nfg3+
3bR1r1/1RPPb2q/pRN1R3/B3n1R1/2bN2Q1/2nQ2rn/K7/Q3b1rk w - - 0 1 illegal: No possible last move
2R2r2/1kbQ4/2RR1RN1/3pbB2/n1B3b1/2PqR2K/qPQ2brn/4Q1b1 w - - 0 1 illegal: No proof kernel
Rq6/BrqRR3/1Nb1P3/QnR4P/1n1NRKnQ/1rn5/6pN/b1k2n2 w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 d5 axb5 h6 cxd5 h5 Bh3 exf4 gxf5 Ke7 Bg4 hxg4 Qc2 Kd7 Qd1 Ke8 Kf2 Ke7 b4 Kd6 h4 Ke5 e4 Kd4 d6 Kd3 b6 a5 b7 g5 h5 c5 f6 c4 f7 c3 d7 f3 Kg3 f2 b5 a4 b6 a3 e5 c2 e6 a2 Nc3 Rh7 Na4 Bg7 f8R Ra5 Rh4 Nh6 Nf3 Rb5 Qe1 Rb3 Rf7 Nc6 b8R Na7 b7 Nb5 Ra8 Bh8 b8Q Bb7 Nb6 Bc6 Qbe5 Qb8 d8N Bf6 Rb1 a1N Nh2 Bh8 Bb2 c1Q Bd4 Nc2 Re7 Nb4 Rb2 Bf6 Rc2 Bh8 Rc5 f1N+ Kf2 Qc2 Qd5 g3+ Kf3 g2 Re4 Bg7 Qh4 Ng4 Qe5 Qc4 Be3 Kc2 d4 Bh8 d5 Rf7+ Qf5 Ba1 d6 Rh7 d7 g1N+ Kg2 Ne2 Kf3 Nec3 Bd4 Bb7 Nc6 Kc1 d8R Rf7 Bg1 Rg7 Nd4 Bc6 Rea7 Rb7 Rd7 Nge3 Qe5 g4+ Kf4 g3 Bf2 g2 Re7 Ng4 Qc7 Qg8 Qe5 Rb8 Rad7 Qe8 Qc7 Qh8 Qa7 Rb7 Qa5 Qb8+ Rce5 Qe2 Nc2 Nca2 Nd5 Qc4 Ba7 Nac3 Nb6 Bd5 Nd4 Qcc8 Rf7 Bc6 Rfe7 Rc7 Rc5 Rb7+ Kg5 Qcc7 Kf5 Ne5 Kf4 Ng4+
1Q2n1B1/3nR1Br/P1BbB1n1/kb3KP1/1qR1Q2p/1qR5/BN1r4/3nn3 w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 g5 f4 e5 fxe5 g4 Na3 g3 b4 axb4 hxg3 bxa3 g4 Bb4 g5 Bf8 Kf2 Kd7 Kf3 b5 Ke4 c5 d4 Kc7 g4 Kb6 e6 h5 g6 c4 d6 a2 e7 b4 e8B b3 g5 c3 d5 c2 a5+ Ka6 d7 b2 d6 b1N g7 h4 Qd4 f6 Bh3 Na3 Nf3 Rh6 Kf5 Qb6 e4 Qb4 e5 Rh7 e6 Nc4 d8Q Nd7 e7 Nce5 Re1 Ng6 Bb2 c1N Qe4 Nd3 Rac1 a1Q Rc3 Qa2 Bf7 Qab3 e8B Bb7 Nd2 Bc6 Rec1 Ne1 Qb8 Bb5 Nc4 Ra7 Ba1 Rc7 Nb2 Rc4 Qf3 Rd4 Qe4 Rd2 Rc4 Be7 R1c3 Bf8 Bd5 Be7 Bc6 Bf8 Bf7 Be7 Ke6 f5 Bg4 f4 Kf5 Ngf6 g8B f3 Be6 Nde5 d7 f2 d8R f1N Re8 Bd6 Re7 Ned7 Bd1 Ne8 Bc2 Nh2 Bb1 Ng4 Ba2 Nf2 Qc8+ Ka7 a6 Kb6 Qb8+ Ka5 Rg3 Nc5 Nd1 Na4 Bg7 Nc5 Nb2 Nd1 Rgc3 Nd7
1B1Bq2r/Q2Rb2q/1nnBKn2/5P1B/2k1P2p/7Q/2q2B1Q/1n1rb1NN w - - 0 1 legal: proof: d4 b5 c4 e5 a4 f5 axb5 d5 cxd5 Nh6 g4 fxg4 d6 Ng8 b4 g5 h3 g3 d5 g4 Ra3 g2 Rd3 g3 Rd4 Bg4 hxg4 exd4 Kd2 Kf7 Kd3 c5 Ke4 a5 Ke5 h5 f4 d3 e4 h4 f5 a4 b6 d2 g5 a3 g6+ Kg7 b5 a2 b7 a1B+ Ke6 c4 d7 c3 d6 c2 b6 Nc6 b8Q Nf6 b7 Be7 Nc3 Qe8 Qe2 d1N d8B Ne3 d7 Nc4 Ba3 c1Q Nd1 Bc3 Qa7 Nb6 b8B Qc2 Nf2 Be1 Bad6 Kf8 Bd8c7 Kg7 d8B Kf8 Qb7 Ra1 Qa7 Rd1 Qe3 Kg7 Be2 Kf8 Bh5 Kg7 Nf3 g1Q Qe2 Qh2 Ng1 g2 Qf3 Qf4 Qh3 Qh6 Bc5 Kf8 B7d6 Qh7 Rh2 Kg7 Nh1 Kf8 Bf2 Kg7 Ne2 g1N Rg2 Nf3 Ng1 Nd2 Rh2 Kh6 g7 Kg5 g8Q+ Qhg6 Bfg3 Nb1 Rd2 Qg7 Qf8 Qh7 Bf2 Nfd5 B6c7 Nf6 Rd6 Kf4 Qg8 Bb4 Qgg2 Be1 Rd7+ Ne5 Bg3+ Ke3 Qgh2 Nc6 Bcd6 Kd4 Bf2+ Kc4
Rn3BB1/1q3r2/1N2RRK1/1pP1q3/qBrRb3/2R5/b3QrPr/Q2n3k w - - 0 1 legal: proof: d4 a5 e4 g5 b4 f5 exf5 c5 dxc5 axb4 h4 Kf7 f4 Ra3 f6 Ra7 f5 Bh6 Nc3 Ke8 Nd5 Ra8 Nf4 gxf4 Bd2 Ra7 Bc1 Bg5 hxg5 Ra8 Ke2 Kf7 Kd3 d5 c4 e5 a4 b5 a5 h5 c6 d4 Ke4 d3 c7 b3 a6 h4 a7 f3 c5 h3 Qe2 b2 Bd2 b1B Bc1 d2+ Qd3 d1Q Ra4 f2 Be2 f1R Bd2 h2 Rd4 Qa4 Bb4 Be6 c8R Qb6 Re8 Nh6 Nh3 Rf8 Nf4 Ng4 Nd5 Rf2 Rc1 h1R Rc3 Ne3 Bf3 Qc7 Nb6 Bea2 Re6 Rh2 Bg4 Nd1 g6+ Kg8 f7+ Kg7 f6+ Kh6 g7 Kg5 g8R+ Kh4 Bf3 Qb7+ Kf5+ e4 Kg6 Kg3 Qe2 e3+ Be4 Bc2 Bf5 Be4 Rh8 Re8 f8B Re7 f7 Rd7 Bg7 Rc7 f8R Rf7 Rhg8 Rh3 Rh8 Kh2 Rh6 Kg1 Rfd8 Kh1 Bf8 Rh2 Rc8 Nc6 Rce8 Rd8 a8Q Nb8 Rf6 Rdd7 Ree6 Rd8 Rh8 Rd6 Kg5 Rdd7 Bh7 Rde7 Bg8 Re8 Qc4 e2 Qa7 e1Q Qe2 Bc6 Kg6 Rd8 Rdh4 Rd4 Qa8 Rc4 Rd4 Qb3 Qa3 Qa4 Qc1 Qd2 Qa1 Qe3 Rd8 Bf3 Rh4 Qe5 Rhd4 Nd7 Ra8 Nb8 Rd2 Bd5 Rd4 Be4+
r4Q2/q1r1n2b/1N1P4/1bB1QB2/2n1RQnk/1p2nB1q/QN2b1P1/Q5K1 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 g5 e5 d5 cxd5 f6 exf6 Ra7 Qg4 Ra6 Qd1 Ra8 a4 Nd7 f4 Rb8 h4 Ra8 f5 Nb8 Ra3 Bg7 Rf3 Bh6 Rf4 gxf4 Bb2 Qd7 Bc1 Bg5 hxg5 Qd8 Kf2 Kf7 d4 h5 d6 b5 a5 c5 d5 e5 a6 c4 a7 h4 d7 e4 d6 e3+ Ke1 e2 Kf2 e1N Ne2 b3 Na3 b4 Nd4 h3 Bd2 h2 Bc1 b2 Be3 b1B Nc6 b3 Bd3 f3 Na5 c3 N3c4 c2 Bc5 c1N Nb6 Rh7 Nac4 Nc2 Re1 h1Q Re4 Qe7 d8Q Nh6 Qh8 Qh3 Kg1 Ng4 Nb2 Ba6 Be2 Nd3 Qc1 Ba2 Qa1 Nde5 Bd3 Bb5 Qg7+ Ke8 g6 Nc4 Be2 Nc6 f7+ Kd8 f6 N2e3 Bd3 Bb1 Qa2 Qb7 Qa1 Ne7 f8Q+ Be8 Qff7 Bb5 Qa2 Qb8 Qd5 Qb7 Qe5 Ke8 Qh6 Qc7 g7 Kf7 Qhf4 Kg6 g8B Qd7 f7 Bc2 Qe6+ Kh5 f8Q Kh4 Qee5 Qc7 Be6 Qb7 Be2 Rf7 Rd4 Bh7 Re4 Qa6 Bf5 Qa5 Qh2 f2+ Kh1 f1B Bf3 Rd8 a8Q Ng6 Kg1 Be2 Qa3 Rc7 Qhf4 Ne7 Qa1 Qa6 Qa7 Qb7 Q7a4 Ra8 Q4a2 Qa7
NR5N/Q4q2/p2r1k2/b2q3Q/2qNB1nR/3bq1bQ/1nP2Pr1/1QK3Q1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f6 h6 fxg7 Bb7 Bg5 Ba6 Bc1 Bc8 g4 Rh7 g5 Rh8 g6 Rh7 Be3 Rh8 Bg5 hxg5 Kd2 d5 h4 e5 b4 Ke7 h5 d3 b6 a6 b7 d4 h6 e4 b5 g4 h7 g3 b6 g2 Be2 e3+ Kc1 d2+ Kb2 d3 Ra3 Nh6 g8Q Qe8 g7 Bf5 Rh4 Nd7 b8Q Qf7 b7 Ne5 Qc1 d1Q Qe8+ Kf6 b8Q d2 Qa7 Bb4 Ra2 Rd8 Nc3 Qf1 Bf3 d1Q Nb5 e2 Qb1 e1Q Nc7 Qdd5 Na8 Bd3 Ne2 g1B Nd4 Qe3 Be4 Nhg4 Ra4 Ba5 Rb4 Rd7 Rb8 Bh2 Qgf8 Bg3 g8Q Rd6 Qh6+ Ng6 Qh5 Nf4 Qed7 Qfe2 Qge8 Rg8 h8N Q2d2 Qg1 Qc3+ Kb1 Rg7 Qb5 Qcc4 Qed7 Be2 Qb2 Nd3 Qbc1 Nb2 Qc8 Nh2 Qh3 Bd3 Rg4 Be5 Rh4 Rg2 Qce1 Bg3 Qb4 Ng4 Qb5 Na4 Qb4 Qf3 Kc1 Qe2 Qb1 Nb2 Rd8 Qf3 Rb8 Qe3+
1Rbqq1k1/1nrrPnr1/2R3QQ/5P2/KR2R1B1/4p3/qr3R2/N1b2N1N w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 e5 d4 f6 Bf4 exd4 e5 Rh6 e6 Rh8 Be5 fxe5 Kd2 g5 Kc2 c5 Kb3 a5 h4 g4 f4 c4+ Ka4 c3 b4 g3 d6 c2 h6 c1R d7+ Ke7 h7 d3 b6 g2 f5 e4 b5 d2 h5 e3 h6 Nf6 b7 Qc7 d8N Ke8 b6 Nd5 e7 Nc6 b8R Ndb4 b7 Nd3 Ne6 Kf7 Rh2 Qd7 Be2 Nde5 Bg4 Ra7 Ne2 g1R N6d4 Bg7 Rf2 Qe8 Nb3 Rc3 Qc1 d1Q Ng3 Qdd8 Nh1 Rg8 h8Q Rg2 h7 Rc5 Ka3 a4 N1d2 Na5 Nf1 Rc7 Qc6 Bf6 Qd6 Rg7 Rc1 Rh2 Kb4 a3 Rc6 a2 Ka4 Rd7 Na1 Rg2 Rf4 Rb2 Rb4 Rc7 Ra8 Rd7 b8R Rac7 Re4 Nb7 Ra7 Na5 Rbb4 Nb7 Ra8 Nf3 Rb8 Ng5 Qg3 Bc3 Qd6 Bd2 Qh6 Bc1 Qh5+ Rg6 Qh6 Rg8 Qe5 Rg6 h8R Rg7 Rh7 Kg8 Qef6 Nf7 Qhg6 Rdd2 Rh2 Rd1 Rf2 Rdd7 Nc2 Ne5 Qfg5 Nf7 Q5h6 a1Q+ Kb5 Qa2 Na1 Qe6 Ka4 Qa2+
1R3rNN/kp3P2/4bNnn/2P3Br/1Q3NQr/6bN/2Q1KBr1/qq2n3 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 g4 h6 a4 Qc7 f5 Qd8 Ra3 Rh7 Bh3 Rh8 Rf3 h5 Rf4 gxf4 g5 Qc7 Bg4 hxg4 Qf3 Qb6 Qd1 Qd8 h4 e5 c4 d5 h5 Kd7 g6 Kc7 g7 e4 f7 d4 c6 e3 a6 Kb6 a7 e2 h6 g3 a5+ Ka6 c7 g2 f6 d3 h7 f3 Nd2 Be6 c8Q Bc5 f8B Qd6 f7 Qc6 Ne4 Qd5 Bg5 Qd8 Nf6 Nc6 Nh3 Qd4 Qc2 Nh6 g8N g1R+ Kd2 Rb8 a8N e1N Nc7+ Ka7 a6 f2 Ncd5 f1R Ndf4 Bd6 c5 Rf3 Bg7 Ne5 Kd1 d2 Ke2 Qa1 Qd7 Ba2 Qg4 Be6 Rh2 Rf8 Rg2 Kb8 Rg3 Ng6 a7+ Kc7 a8Q Rg2+ Nf2 Rc3 Qaa4 Kb8 Qb4 Ka7 Rd3 Be5 Rd8 Rh3 Re8 Rh5 Rb8 Rg1 N2h3 d1Q+ Ke3 Qdb1 Ke2 Nf5 B7h6 Bc7 Bh4 Rg2+ Bf2 Bd6 Bg5 Nh6 Nd3 Bg3 Ndf4 Rh4 Ne7 Rhg8 h8N Rg7 Neg8 Rh7 Ne8 Nf5 Nef6 R7h5 Qbe4 Nh6 Qd4 Qab2 Qb4 Q2a1
N2QB3/Pqrr1r2/K6Q/1n5R/1Rqb2N1/Q2bPRn1/2kr3p/5bRR w - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 Ke7 b4 axb4 g4 Ke8 h4 g5 h5 h6 Bb2 Be7 Bd4 Bd6 Bf2 Bc5 Bh4 gxh4 g5 Bd6 gxh6 Bf8 d4 Ke7 Kd2 b5 Kd3 c5 a4 f5 e3 f4 d6+ Ke6 d5+ Kf5 h7 b3 e6 b4 Kc4 Ke4 Kb5 c4 d7 b2 e7 b3 e8Q+ Ne7 h6 c3 d6 h3 a5 h2 a6 f3 a7 f2 Be2 f1R Nh3 c2 Qh5 c1R Na3 b1Q Nc4 b2 Nb6 Nbc6 Qb3 Rf7 Qa3 Qc7 d8R Bg7 d7 Bd4 Rf8 Nf5 d8Q Ng3 Bf1 Rd7 Rf3 Rf8 h8R Rff7 h7 Qf4 Qh6 Ba6+ Ka4 Rc8 Na8 Rcc7 Bb5 Rd1 Rf8 Rd3 h8R Rd2 Rfg8 Qg4 Rg5 Qe6 Rh5 Qd5 Rg1 Qd3 Raf1 b1B Rh1 Qe2 Rfg1 Bd3 Rg8 Qg2 Rb1 Qc4+ Rb4 Ba1 Rgg5 Nd4 Ka5 Bc3 Ba4 Nb5 Rg6 Bf1 Rg4+ Kd3 Nf2+ Ke2 Rg8 Bd4 Ng4 Ke1 Bc2 Ke2 Bg6 Kd1 Rg7 Rf8 Bf7 Kc2 Be8 Rff7 Rg8 Bb7 Rg6 Be4 Ka6 Bed3 Rgf6 Bfe2 Rff1 Qgd5 Rfg1 Bf1 Rf3 Qb7+
5Q1Q/Q1R1NQn1/PR5b/4QB2/1b1qrbbk/nB1rP2n/p5B1/2K4n w - - 0 1 illegal: No proof kernel
Q1n1b3/qb5B/3N2Q1/2nrBpB1/1Pn1qP2/3Q1RN1/b1B1B2k/b3K2b w - - 0 1 legal: proof: e4 b5 b4 g5 f4 d5 exd5 g4 a3 c5 Ra2 cxb4 Ra1 b3 Ra2 b4 axb4 Kd7 Ra5 Ke8 h4 a6 h5 Nf6 Rc5 a5 Rc3 Ng8 Rf3 gxf3 g4 Ra6 g5 Rg6 hxg6 Qd6 Bc4 Qd7 Bf1 Qd8 d4 Kd7 c4 h5 c5 e5 g7 b2 d6 Ke6 d5+ Kf5 d7 Kg4 g6 Kg3 c6 f5 c7 a4 d6 e4 Qd5 e3 Qd4 a3 Rh4 a2 Qb6 a1Q Nd2 b1B Nc4 f2+ Kd1 e2+ Kd2 e1N Bd3 f1B Bc2 Nc6 Bb2 Nge7 g8B Na5 g7 Bb7 c8Q Qe8 d8B Nd3 d7 Nc5 Qa8 Nc8 Bg5 Qe4 d8Q Qa4 Qg6 Ba2 Rh1 h4 Bh7 h3 g8B h2 Ne2+ Kg2 Be6 Bg7 Ng3 Bf6 Qd5 Rd8 Beg8 Bd3 Rf1 h1B Rf3 Kh2 Be6 Be2 Ke1 Bh8 Qd2 Rd4 Bd7 Rd5 Nd6 Bd4 Qc3 Bb5+ Qe3 Qa3 Ba1 Ba4 Bb5 Bf6 Ba6 Be8 Be2 Nc4 Qd3 Qa7 Bc3 Bd8 Bg7 Bf6 Bh8 Bd4 Be5 Ba1
qb2nB2/BbP1rNNB/N1q2rPB/4QRKp/1b6/5b1r/k4B2/2bQ4 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 f5 Qb6 Qe2 Qc7 Qd1 Qd8 h4 Nh6 g4 Kf7 b4 Ng8 h5 Ke8 Ra3 Nc6 Rf3 Ne5 Rf4 gxf4 g5 Ng6 hxg6 Qc7 Rh2 Qb6 Rh1 Qd8 Kf2 a5 Kf3 e5 Kg4 d5 c4 Kd7 g7 Kd6 g6 a4 b6 e4 f7 d3 b7 d2 b8N d4 b5 Kc5 b6 Kb4 b7 a3 c5 e3 c6 a2 Na3 a1B Ba6 f3 Ne2 f2 Bc4 f1R Rh5 d3 Nb5 Be5 Nd6 Ra7 Nf4 e2 Ne6 Nf6+ Kg5 e1B g8Q Ne8+ f6 Kc3 Na6 Bh6+ Kg4 B5g3 b8B Re7 f8B Bb7 f7 Rf6 Ba7 Qa8 Qg7 Be3 Ba3 h6 B3c5 Kb2 Rf5 Bg5 Nb5 Bb8 c7 Bf4 Bf2 Bg5 Qf3 d1B Nd6 Bc1 Kh5 d2 Kh4 Ba4 Qd1 Bac6 Ba2 Bf3 Bb3 h5 Kg5 Rh7 Qh8 Kb1 Ng7 Re3 Be7 Rd3 f8B Ka1 Bg8 Rb3 Bae3 Ka2 Nf7 Rd3 B7c5 Ra3 Qa4 d1Q Ba7 Qd7 Qd1 Bb4 Bd2 Qc6 Bf4 Bh1 Bd2 Rh3 Bf4 Rh6 Bh7 Bf3 Ne6 Be1 Bg8 Be3 Nd6 Rf7 Qe5 Rg3+ Kh4 Rhh7 B4h6 Rhg7 Bh7 Bb4 Nac5 Rf6 Na6 Rgf7 Ng7 Re7 Nf7 Bc1 Qg1 Bb2 Qd1 Rh3+ Kg5 Bc1+
b1k2r1N/1rB2n1P/B6n/3Q1n1N/1qrN1Q2/qB4q1/B1pBqPK1/R7 w - - 0 1 legal: proof: g4 b5 a4 e5 axb5 h5 d4 hxg4 dxe5 Nc6 c3 Nb8 b6 Qe7 Nh3 Qg5 Ng1 Qd8 e4 f5 b4 Qg5 e6 Qd8 e5 Qe7 b5 Qg5 Ra4 Qd8 Re4 Bb4 cxb4 fxe4 h4 d5 h5 g5 e7 Kd7 b7 a5 b6 c5 b5 d4 h6 g3 h7 c4 Ba3 c3 Rh3 a4 Rh4 d3 Bb4 g4 Nf3 c2 Nbd2 e3 Nd4 a3 Nc4 g2 Bd2 g1Q Rh1 g3 Nd6 g2 Nf7 Nc6 b8Q e2 b7 Nh6 b6 Rf8 Nh8 Qh2 Rg1 a2 Rh1 Qc7 e8B+ Kd8 e6 g1R Bh5 a1Q Bf7 Qe7 Qf4 Ne5 b8B Qaa3 b7 Qeb4 e7+ Kd7 Ba2 Rg4 Bc7 Rb8 Rg1 Qg3 Bb3 Nef7 e8B+ Ke7 Rh1 Bf5 Bc6 Be4 Bcd5 Kd7 Bdc4 Rbe8 b8N+ Kc8 Nd7 Re7 Ba2 Ba8 Nf6 Rh4 Nh5 Rg4 Bb8 Rb7 Bc7 Rh4 Bcb3 Rg4 Qf3 Re4 Qc1 Rg4 Qd5 Rh4 Nb5 Rc4 Nd4 Qg8 Bc3 Rc6 Qf4 Qg3 Ne6 Rc5 Kd2 e1N Nd4 Nf3+ Ke3 d2 Ba6 d1Q Bd2 Rc4 Rg1 Nh4+ Ke4 Qdg4 Ra1 Qg2+ Ke3 Q4g3+ Ke2 N4f5 Ke1 Qe4+ Kf1 Qgc3 Kg1 Qe2 Kg2 Qg3+
2RQ3n/QB1p4/B1b1qnN1/3k4/1PnP1q1Q/r4rR1/1Q1K1Qq1/4rB1q w - - 0 1 legal: proof: e4 b5 b3 g5 Ba3 f5 exf5 b4 Bb2 c5 a3 c4 axb4 c3 b5 cxb2 f4 Bh6 h4 Na6 g4 Kf7 f6 Qf8 f5 Nb4 Nc3 Ke8 Nd5 Bg7 Nf4 gxf4 g5 Nc6 g6 Nb8 Ra4 Bh6 Ra1 Bg5 hxg5 Qf7 Bh3 Qc4 Bg2 Qc7 Bf1 Qd8 d4 b1Q c4 h5 b4 e5 c5 a5 b6 a4 g7 Kf7 b7 f3 c6 h4 c7 f2+ Kd2 h3 Bg2 f1Q Qc2 e4 Nf3 h2 Qb2 a3 Rg1 h1Q Nh4 a2 Ng6 Nc6 b8Q Ne5 Qa7 Bb7 c8B Bc6 Ba6 Qb8 Bf3 Qc4 Rg3 Qbg1 Rc1 a1N Bg2 Qf8 Bf1 Nc2 Bb7 Ne3 Rc2 Ke8 f7+ Kd8 f6 Kc7 Rc3 Kd6 Rc1 Qb8 f8Q+ Kd5 f7 Nf6 g8Q Rh3 Qh7 Qa2 Qh4 Qgg2+ Kc3 Qa6 Qd8 Qc7 f8Q Nf7 Rc2 Nh8 Rc1 Qae2 Ba6 Qg4 Bb7 Qe6 Qf7 Nh5 Qff2 Nf6 Kd2 Qf4 Bba6 Ba4 Rc8 Bc6 Rg4 Rf3 Rg3 Qe8 Ne5 Qe6 g6 Qg5 g7 Qf4 Qb8 Ra7 g8B Ra8 Bb7 Ra3 Qa7 Nd1+ Kc2 e3 Ng6 e2 Bf7 Ne3+ Kd2 e1R Bg8 Kd6 Bba6 Qeh3 Bgc4 Qe6 Bcb5 Kd5 Bb7 Qee4 Bbd3 Qe6 Bda6 Nc4+
rR5b/k1p1N2B/2Bn1Q2/r2QnrrB/1q1r3R/P5KQ/4rPB1/Bq6 w - - 0 1 legal: proof: c4 a5 e4 f5 d4 g5 h4 e5 hxg5 b5 Nc3 b4 dxe5 Nc6 e6 Nb8 e5 Ba6 Ne4 fxe4 b3 Bb5 cxb5 a4 Rh6 axb3 Rh4 Nc6 Rh1 Nb8 g4 d5 a3 h5 g6 e3 g7 h4 e7 Kd7 e8Q+ Kc8 g5 Kb7 e6 h3 e7 b2 b6 b1R g6 b3 Bb2 h2 Be2 d4 Qd7 d3 e8B d2+ Kf1 Qe7 Kg2 Nh6 g8B Qb4 g7 Nf7 Qh3 Nc6 Bb5 e2 Kg3 e1R Nf3 Ra5 Ne5 Re2 Ng6 Nd6 Ne7 Ne5 Bh7 Ng4 g8B Bg7 Bh5 Kb8 b7 Ka7 Bgf7 Ra8 Bd5 Bh8 Bg2 Rc1 Bbe8 Rcc5 Bec6 Rf5 Rb1 Rg5 Ba1 b2 Qb3 d1R Qd5 Rd4 b8Q+ Ka6 Rbe1 b1Q Qf8 Ka7 Qf6 Rf5 Rc1 Rg5 Rc4 Rf5 Rd1 h1R Rd3 Rhe1 Rb3 Ree5 Rb2 R1e2 Rb3 Rg5 Rb2 Ref5 Rb3 Qd2 Rb8 Qdb4 Bc3 Rde4 Ba1 Nh6+ Qg4 Ref4 Rc1 Rfe4 Rh1 Rd4 Rh4 Q1b3+ Kh2 Qb1 Qh3 Ng4+ Kg3 Ne5+
1R6/3nb3/r4k1K/P1N4B/b1p1nb2/RQRq4/N2qPNQq/2qR1R1b w - - 0 1 legal: proof: f4 a5 g4 d5 c4 f5 cxd5 e5 b4 axb4 fxe5 Bd7 Na3 Be6 Nb1 Bc8 Ba3 b5 Bb2 h6 Bd4 f4 Bc5 Ra6 Be7 Rc6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 Kf7 Kf3 c5 Kg4 b3 d4 g6 a4 c4 h4 f3 a5 b4 e6+ Kg7 h5 f2 d6 b2 d5 b3 e7 Nd7 e8Q Kf6 h6 Be7 h7 Ba6 Bh3 f1Q Ra3 Bb5 Nc3 b1Q Na2 b2 Qb3 Qd3 Bg2 b1B Rh3 Bc6 Bf3 Bc2 Rg3 Qg2 Nh3 Qh2 Nf2 Qd2 Rh3 Be4 Rg3 Ba4 Rh3 Nc5 d7 Ne6 d6 Bec6 Bd5 Bb7 Rc3 Ba8 Kf3 g4+ Ke4 g3 Bb7 Qb8 d8R g5 Qc6 g2 d7 g1B Kf3 Qhd6 Kg4 Bh2 Kh5 g4 Qg2 g3 Bf3 Q6d3 Bg4 Qbd6 Rb8 Bf3 d8N Ng5 Ne6 Qc7 Nc5 Bb7 Qd5 g2 Rd8 g1Q Qg2 Bf4 Bf3 Ke5 f6 Qgc1 f7 Nf6+ Kh6 Nd7 Bh5 Kf6 Rb8 Rc8 h8R Qcd6 Rd8 Rc6 Qg4 Ra6 f8R+ Ke5+ Rf6 Bh1 Qg2 Qh3 Rf8 Q6d3 Rd6 Qh2 Nd1 Bg3 Rf1 Bf4 Nf2 Kf5 Ne6 Kf6 Rd4 Ne5 Nc5 Nd7 Qb2 Qf5 Nh3 Qde1 Rd1 Qed2 Nf2 Qfd3 Qb3 Ne4+
k1NQ1nNN/rRbn4/2b4K/2n2b2/3rPp2/R1nQ1b1B/2Pn4/1N2N1R1 w - - 0 1 legal: proof: g4 f5 a4 e5 d4 c5 f4 b5 axb5 h6 Bd2 Qg5 fxe5 cxd4 Be3 Qh5 Bg5 f4 Bh4 Qf5 Bg5 hxg5 gxf5 Bd6 Bh3 Bc5 Bf1 Bf8 Kd2 Kd8 h4 Kc7 b4 Kb7 f6 a5 h5 d5 e6 d3 b6 a4 f7 a3 h6 a2 e3 g4 e7 g5 e8Q d4 h7 g3 b5 g4 Qe7+ Nd7 Bh3 g2 Qf6 g3 Qe6 Bd6 f8N Ne7 Qf6 Bc7 Ng6 Rd8 h8N Ra7 Nf3 g1N Ne1 Ne2 Rg1 g2 e4 Nc3 Qe2 Ka8 Qg5 Bb7 Qd1 Nf5 Ne7 Bc6 Nc8 Nh4 Qf3 Ng6 b7+ Kb8 Qf6 Ngf8 Qg3 Na4 Kd1 d2 Ke2 d3+ Kf3 Nc3 Kg4 d1B+ Kg5 d2 Kh6 Bg4 Qd3 d1B Qfd6 Bdf3 Qe7 Bf5 Qg5 Ba5 Qg8 Kc7 b8N Kb7 b6 Ka8 Qgd5 Ne5 Qg8 Rd4 Qg5 Ned7 Qd8 Ba4 Nc6 Bb5 Rf1 g1N N6e7 Bc6 Ng8 Bd1 Qg3 Nf3 Rg1 Nd2 Qd3 Bdg4 Na3 Bf3 b7+ Kb8 Rd1 a1N Nb1 Ndb3 Rd2 Nbc5 Rdg2 Bc7 Rg6 Bb5 Ra6 Nab3 Ra4 Nd2 Ra3 Raa4 Nce7+ Ka7 b8R Bc6 Rb2 Ra5 Nc8+ Ka8 Rb7 Ra7
1Qn4B/b2K4/1nR1RR1Q/nnr3p1/br2RPRB/2k1r1r1/4P1B1/b6N w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 f5 Ng1 h5 Nc3 f4 Ne4 f3 Nf6+ Kf7 Ng4 hxg4 Kd3 Qg5 Kc2 Qf4 gxf4 Ke8 Kb3 Ke7 Kc4 Kf6 b4 c5 d4 g5 h4 a5 h5 g3 h6 a4 h7 g2 b6 a3 Kb5 a2 b7 c4 d6 c3 d7 c2 d8R Na6 Kc6 Bd6 b8Q Ke6 b5 Nc7 b6 Nb5 b7 Ra5 Be3 c1N Nh3 g1R Rf8 Bc5 Bg2 f1N Bf2 Nd2 Bh4 Ncb3 Nf2 Nc4 Rc1 a1B Qf1 Nb6 d5+ Ke7 d6+ Ke6 d7 Bcd4 Ne4 f2 d8R Ra3 Qe1 f1R Ng3 Bf2 Rd4 Na5+ Kc5 Re3 Re4+ Be5 Rh3 Bd7 Nh1 Ne7 Rg3 Nec8 Rg4 Rg8 h8B Rg7 Bf3 Rg3 Bg2 Rf7 Rcc4 Rf5 Qb4 Rb1 Rf6+ Ke7 Qd2 Rb4 Qd5 Be8 Qg8 Bc6 Qf8+ Kd7 Qh6 Ba1+ Re5 Nc7 Re4 Ba4 Qa8 Nb5 b8R Ncd6 Re8 Ndc8 Ree6 Kc7 Qd5 Bg1 Rc6+ Kb7 Qd6 Ka6 Qg7 Nc4 Qb8 Ka5 Rc7 Bf2 Kc6 Bg1 Ree6 Rc5+ Kb7 Rbb3 Qg6 Kb4 Rcc6 Kc3 Qg7 Rb4 Qh6 Nd4 Kc7 Nb5+ Kd8 Na5 Rd4 Re4 Bg7 Rcc4 Qc7 Na8 Kd7 Bf2 Qb8 Be3 Rd5 Ba7 Bh8 Rc5 Rde5 Ree3 Re4 Nab6+
4QrrB/q1N2QQ1/Bqn1b2R/1P5q/B1Q1brQ1/R1p2pP1/7n/2k3K1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 Nc3 e4 axb5 Qf6 f4 exf3 Na2 Bc5 Nb4 Qd8 Nd3 Bd6 Nf4 Be5 Nd3 Bg3+ hxg3 Ba6 Nf4 gxf4 Qb3 Bb7 Qd1 Bc8 Kf2 Kd7 d4 Kd6 e4 c5 b4 a5 b6 h5 g5 f5 g6 a4 b7 a3 g7 a2 Bd2 c4 Be2 h4 Bc3 Be6 Nh3 Qb6 Ng5 h3 Kg1 Nf6 g8Q Ng4 Qg7 Rg8 Qa4 Nc6 b8Q+ Qc7 Qc2 Nh2 Qe8 Qb6 Qef7 Raf8 Qa4 Bc8 Ne6 Bd7 Nc7 Be6 Rd1 a1Q Qb5 Qaa7 Ra1 Ng4 Ra3 f2+ Kf1 h2 Kg2 f1R Qa6 Ne7 e5+ Kd7 d6 Kc6 d7 f3+ Kh3 f2 Kg2 f4 d8Q Nf5 Qdg5 Bc8 e6 Kd6 d5 Nd4 e7 Be6 Be1 c3 e8B Ne5 Qg4 Nef3 Qh7 Ke5 Qhg7+ Ke4 d6 Ke3 d7 Qb5 d8Q Qh5 Qac8 Qb6 Ba6 Qa7 b5 Ke2 Bd7 Kd1 Qde8 Kc1 Bc6 Qb6 Bd5 Qa7 Bb3 Qb6 Rg1 Qa7 Ba4 Qb6 Qcd8 Qa7 Qdh4 h1B+ Kh3 Nh2 Bd2+ Kb2 Be3 Be4 Rg2 f3 Rg1 Ra1 Rh1 Qb6 Bf4 Rd1 Be5 Kc1 Qh7 Re1 Bh8 Rd1 Qhg7 Qa7 Rg1 f1Q+ Rg2 Qg1 Rd2 Nc2 Rd6 Qgb6 Rc6 Rd4 Rd6 Bb3 Rh6 Rb4 Qge6 Nd4 Qc4 Qg5 Qg4 Qe5 Qe2 Be6 Qc4 Nc2 Na8 Bc6 Nc7 Nf1 Qe2 Rf4 Qff6 Nd4 Qc4 Be4 Qfg6 Nd2 Kh2 Qh5+ Kg1 Nf1 Q7f7 Nh2 Qgg7 Nc6+
3N1R1R/2k3n1/nr5n/1PNQr1p1/2q3Q1/Bb1pQ2b/1K3QP1/Q1rq2N1 w - - 0 1 legal: proof: b4 a5 h4 c5 d4 cxd4 e4 b5 h5 f5 exf5 g6 h6 Bg7 hxg7 a4 Bc4 Ra6 Bb3 axb3 a4 Ra7 axb5 Ra8 Kd2 h5 f4 e5 c4 d5 b6 Kd7 f6 e4 f7 b2 Kc2 g5 f8Q e3 f5 e2 f6 e1R f7 h4 b7 h3 b5 h2 c5 Nh6 g8Q Ra6 c6+ Kc7 Qa3 Re5 f8Q Rb6 Qf2 Na6 b8N Bh3 Nc3 b1B+ Kb2 d3 Ne4 d2 Nc5 d4 Qae3 d3 Qd5 Bc2 Ra4 Qf8 Rf4 Qg8 Rf8 Rh7 Qde1 d1Q Qa5 Rd7 Qa1 Ba4 Kc3 Rg7 Ba3 Bb3 Kb2 Rf7 Nb7 Rf4 Nd7 Rc4 Ndc5 Rc1 Nd8 Qe6 Qee2 Qg4 Qee3 Qc4 Ne2 Kb8 c7+ Kc8 Re1 h1N Ng1 Ng3 Rh8 Bc2 Rf1 Ba4 Qc2 Bb3 Rff8 Ngf5 Qcd2 Ng7 Qdf2 Rd6 Nce6 Kd7 c8Q+ Ke7 Nc5 Rb6 Qdf3 Kd6 Qcg4 Kc7 Qc6+ Kb8 Qd5 Kc7
B6k/Nq6/QpnP2Kb/2BBbP2/1r2rn2/3R3n/RRpq1b2/R2Q3R w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 Nd7 g4 Nb8 b4 axb4 f6 Ra7 Ba3 Ra4 Bc1 Ra8 f4 h6 f7+ Kd7 f5 Ra5 f6 Ra3 Nc3 Ra8 Ne4 h5 Nf2 Kd6 Nf3 Be6 Ng1 Bf5 gxf5 Kd7 Ng4 hxg4 Ke2 g5 Kd3 c5 Ke4 e5 a4 c4 h4 c3 d4 g3 a5 b3 a6 g2 h5 g4 h6 c2 a7 g3 h7 b2 d6 b1Q d5 Ne7 Ne2 g1N Nc3 g2 Be3 Bh6 f8R Nh3 f7 g1B Bc5 Bh2 Bg2 Ng6 Nb5 Nc6 Rg8 Qb3 f8Q Rb8 a8B Ngf4 Qf6 Bg3 Rg4 Ke8 Na7 Bf2 Qg6+ Kf8 Rh4 Rg8 h8R Qd7 Qe6 Kg7 Bf3 Qd8 d7 Re8 Ra2 Qa5 d8R Qd2 Rg8+ Kh7 Rgg1 Kh8 Bg2 Qbb4+ Kf3 e4+ Kg4 e3 Rb2 Na5 Qa6 e2 d6 e1B Bd5 Qb3 Rg3 Qb6 Rd3 Nc6 Rd7 Re4 Ra2 Ne6+ Kh5 Qb5 Kg6 Nef4+ Kf7 Qb6 Rg4 Bd4 Rgg1 Be5 Rc7 Bf2 Re1 Na5 Rc6 Qb1 Rb6 Nc6 Rbb2 Rg8 Ra1 Rg4 Ree3 b6 Rda3 Qa2 Red3 Qc4 R3a2 Qb5 Qa4 Qa6 Qc4 Qc8 Qa6 Qb7+ Ke8 Rb4 Bc4 Rg1 Bd5 Qc8+ Kf7 Re1 Qb1 Ree4 Qd1 Nh5 Kg6 Qd7 Rda3 Qb7 Rd3 N5f4+
2r1b1BB/2QP3p/2R3b1/rn1p1KQB/NQQ2n1Q/2b5/3nqP1q/k3N3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 axb5 f5 exf5 Bg7 Rh3 Bh6 Rh1 Bf8 cxd5 c6 d4 Nf6 d6 Ng8 d7+ Kf7 b4 Bg7 d5 Qa5 d6 Qd8 Ra3 Bh6 Rd3 Bf8 Rd5 cxd5 Ke2 Kf6 Ke3 Ke5 g4 a5 g5 h3 f6 h2 f7 a4 b6 a3 b5 a2 b7 a1N b6 Nc6 b8Q Nb3 b7 Nf6 g6 Qc7 d8Q Bd7 g7 Na7 g8B Nb5 Bd2 Be8 d7 Ra5 Qe1 Bg7 f8Q Nh5 Qe2 Nf4 Nc3 e6 Kf3+ Kd4 Kg4 e5 Qfe7 e4 Qg5 e3 Na4 Qd6 Be1 Nd2 Kf5 Be5 Qeg4 e2 Nf3+ Kd3 Qbc7 Bc3 b8Q Kc2 Q4h4 Kb1 Qc4 Ka1 Qdc7 Qh6 Rg1 h1B Bh3 Bg2 Bg4 Bh3 Rh1 Ne4 Bd2+ e1Q Qbb6 Qf1 Ne1 Qe2 Be3 Nd2 Bd4 Bg2 Qbc5 Bf3 Q5b4 Bf7 Bh5 Be4+ Ke5 Beg6+ Kf6 Be8 Rh2 Bgf7+ Kf5 Qd6 Rh3 Ng6 Re3 Qh2 Re6 Nf4 Rc6 Be6+ Kf6 Bg6 Bf7 Rc8 Bg8 Be8 Be5 B6f7 Kf5 Ne6 Bd4 Nf4 Bh8 Bg6+
3K1qQr/1P2B1n1/3n1R2/r2NQnbk/3b3p/2b1pq2/1QN1PB2/2NQ1Q2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 g5 f3 e4 Ra2 e3 Ra4 Bf5 Ra1 Be4 fxe4 Bg7 Na3 Bh6 Nb1 Bf8 b4 Qd7 h4 Qc8 Ra6 Bc5 h5 Qd8 Rf6 Be7 Rf4 Bf8 Rfh4 gxh4 g4 Qd6 g5 Qh6 g6 Be7 g7 Qg5 Bh3 Bf8 Bf5 Qd8 Bg6 hxg6 d4 a5 h6 c5 d6 f5 e5 Kf7 b6 a4 e6+ Kf6 d5 Kg5 b7 a3 b5 f4 e7 a2 e8N a1Q b6 f3 h7 c4 d7 c3 d6 f2+ Kf1 c2 Kg2 f1N Kf3 Qaf6+ Ke4 Nh2 Kd5 Ra3 Nh3+ Kh5 Bd2 c1B Rf1 g5 Be1 g4 Nc7 g3 Bf2 Ra1 Na3 g2 Nc2 Nc6 b8Q g1B b7 Qf3+ Ke6 Be7 Nd5 Nf6 g8Q Qf8 d8B Ne5 d7 Bd2 Qb1 Bc5 Be7 Bd4 d8Q Ra5 Qe1 Nc4 Nhf4+ Kh6 Qb1 Ne8 Kd7 B2c3 Nd3 Ng7 Nc1 Ng4 Qe5 Nd6 Kc7 Bh2 Qd7 Nde8+ Kd8 Bf4 Qdf5 Bg5 Qd3 Q8f4 Qd1 Kh5 Qb2 Nh6 Qf8 Rg8 h8Q Nd6 Qh7 Rh8 Qhg8 Qf7 Bg3 Qh1 Rf6 Nhf5 Bf2 Qh3 Qe8 Qg3 Qa4 Qh3 Qf1 Qf3 Qab3 Be1 Qd3 Bec3 Qdd1 Qf8+
B1NQr1qN/1R1B3k/2NQ3P/3nQ1rp/3pn3/bKP2b1N/3b3N/2n2b2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 fxe5 c5 axb5 h4 d4 Qb6 dxc5 Qd8 Bf4 g6 Bg3 hxg3 h4 Nh6 h5 Ng8 b4 Nc6 h6 Nb8 Rh5 gxh5 Na3 Qb6 Qd3 Qa6 Kd1 Kd8 Nf3 Bb7 Bh3 Ne7 Kd2 Nd5 Rh1 Qa5 Ng1 Ke8 Bf1 Ne7 Ke1 Qd8 Nb1 Bc8 Qd1 Ng8 Kd2 d5 Kc3 f5 e4 Kf7 b6 Kg6 e6 a5 b5 f4 g5 g2 c6 f3 e5 a4 e7 a3 e8Q+ Kh7 e6 a2 e7 a1B+ Kb3 f2 c7 Bg4 c8N Nd7 b7 Bb2 b8N Ra5 b6 Bbg7 b7 Qc7 c3 Qd6 Nc6 Qe5 b8Q Qc7 Nh3 g1N Qd8 Ndf6 e8B Ne7 Bg2 f1B Bd7 Qe5 Nd2 Qg3 Qe5 Ne4 Nf3 Bf6 Nh2 Ne2 Rg1 Bf3 g6+ Kg8 g7 Kh7 g8N Bg5 Qdd4 Bd2 Qb4 d4 Qbd6 Nd5 Nge7 Qg7 Ng6 Be7 Bh1 Re8 Nh8 Qg8 Rg2 Nef4 Re2 Nd3 Re1 Bf8 Ra1 Rc5 Ra7 Ra5 Rb7 Be7 Qdf6 Ba3 Qfd6 Nc1+ Kc2 B3e2 Rb3 Nf4 Qed5 Ne6 Nb8 Nc7 Q5e6 Nf6 Ba8 Rc5 Rb7 Bf3 Nc6 Rg5 Qe1 Ncd5 Qee5 Bb4 Kb2 Ne4 Kc2 Bc5 Kb2 Ba3+ Kc2 Na2 Kb3 Nc1+
NBK1B2b/5Q1P/N2nrBn1/b1PQ1r1B/6N1/b1p3Rp/2B5/2kq2nn w - - 0 1 illegal: No proof kernel
3N4/rnBpPrrQ/5N2/Q1pb1P1r/4N1n1/K1q1k1B1/2B1N1bN/2R1b3 w - - 0 1 legal: proof: e4 e5 b4 h5 g4 b5 gxh5 f6 a4 Ke7 axb5 Na6 d4 Kf7 c4 Qe8 c5 Ke7 b6 Nb8 b5 Qg6 Ra2 Ke8 Re2 Qg2 c6 exd4 e5 f5 Re3 Qd5 Re4 fxe4 Bh6 Qa2 Bg5 Qa6 Bc1 Qb7 cxb7 Be7 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 Kc2 Ke6 Kb3 Kd5 h4 c5 f4 g5 h6 a5 f5 a4+ Ka3 e3 h5 Ke4 h7 d3 h6 d2 e6 g4 e7 g3 Nc3+ Kf4 Nd5+ Ke4 Bd3+ Kd4 Bc2 g2 Nf6 e2 Nf3+ Ke3 Qe1 g1R Nh2 Nc6 b8N Na5 b7 Rg3 b6 Rg7 Nc6 Ra6 b8N Bb7 Nd4 Bg2 Rg1 Nb7 Nbc6 Ra8 Bb2 d1B Qa5 e1Q Nd8 Bdf3 Ne2 Bd5 Be5 Rb8 Bg3 Qc3+ Bb3 Rf7 Rc1 Bg7 Bc7 Ra8 Bg3 Ra7 Bc7 Qd2 Bc2 Qe1 Ne6 Qg3 Ng5 Qe5 Nge4 Qd4 Nh5 Nf6 Bg3 Ng4 Nhf6 Rg8 h8Q Qd2 h7 Qc3+ Bb3 Bh6 Qg7 Bg5 h8N Bh4 Qh7 Rg5 Bc7 Be1 Bg3 Rh5 Bc7 Rg7 Nf7 Ra8 Bg3 Rf8 Nd8 Rff7 Ka2 Nd6 b7 a3 b8B Nb7 Bbc7 Qb4 Kb1 a2+ Kb2 Qd2+ Bc2 a1R Qb6 Ra8 Qa5 Ra7 Ka3 Qc3+
1B1bk1b1/2p3b1/r3nB2/pr1n1P1q/3Q1Q1Q/4N1KB/P2R2r1/1QQR2b1 w - - 0 1 legal: proof: e4 e5 f4 b5 d4 f5 dxe5 Be7 exf5 Bf8 c4 bxc4 g4 h5 g5 g6 Nd2 Bh6 Ne4 Bg7 Nf2 Bh6 fxg6 Bg7 f5 Bf8 Ng4 hxg4 Kf2 d5 h4 a5 b4 d4 g7 d3 g6 d2 e6 c3 h5 c2 h6 Nf6 g8Q Ra7 e7 Qd6 h7 Qa6 g7 Bb7 b5 Qd6 b6 Nfd7 Nh3 Bf3 b7 Qd3 Qd5 Nc6 g8Q Nd8 b8B Qe2+ Kg3 Nf6 Qg5 Ra6 Qd4 Bd5 Qgf4 Ne6 Rh2 Rg8 h8Q Bg7 Bb2 c1B Nf2 Bb3 Bc3 Nd5 Bh3 Bb2 Qe1 d1R Qh4 Rb1 Nd1 Ba3 Qh1 Bc4 Qe1 Rb5 Ne3 Qd1 Rd2 Bc5 Kg2 g3 Qh1 Qh5 Rad1 Bb4 Qhf1 Bd6 Qfd3 Bde5 Qb1 Bef6 Ba1 Qh6 Kf3 g2 Kg3 g1B Bb2 Qh5 Qc1 Kd7 Ba1 Kc8 e8Q+ Bd8 Qf8 Kd7 Qb4 Ke8 Qbb1 Nc3 Kg2 Ng5 Qcc2 Bgf6 Qb6 Bf7 Qbc1 Nd5 Q2b1 Rg7 Bd4 Bg8 Be5 Rg6 Qbd4 Bg7 Bf6 Ne6+ Kf1 Qh8 Ke2 Rg2+ Kf3 Rf2+ Kg4 Qh5+ Kg3 Rg2+
2Q3R1/q1NKb1QQ/2Q2n2/3P2N1/5p1n/1nRb1q1r/PpQr1Bk1/5n1N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 c4 a4 b3 Ne7 Bh3 Ng8 cxd5 axb3 Bf5 Ra7 Bd3 Ra8 Bc2 bxc2 Kf2 Kd7 Kg3 b5 Kf4 c5 Kf5 g5 h4 g4 e4 c4 d4 g3 e6+ Kd6 e5+ Ke7 h6 g2 h5 f6 h7 b4 h6 b3 Ne2 g1N Ng3 b2 Nc3 Qb6 Be3 c1Q Bf2 Ba6 Rh3 Qe3 Qc2 Nd7 Nce4 c3 Nh1 Qa7 Ng5 Nf3 Rg1 Nb6 Rg4 Nc4 d6+ Ke8 e7 Kd7 e8N Kc6 Ke6 f5 d7 f4 d8Q Be7 Rg1 Ncd2 Nc7 Bd3 Qc8 Nf6 Rg4 Rd8 h8Q Nh4 h7 Nf1 Qg7 Qf3 h8Q Rb8 Qhh7 Rb3 Qb1 c2 Rhg3 c1N Qc2+ Bc5 Rh3 Rd6+ Ke7 Rc3 e6 Nb3 Rgg3 Nd5+ Ke8 Ba3 e7 Nf6+ Kf7 Rd7 Ke6 Bc5 e8Q Be7 Qb1 Rc2 Qeg6 Rd2 Qd1 Rd5 Qc2+ Rc5 Rg2 Rc3 Rhg3 Qh5 Re3 Qf3 d5+ Kc5 Qge8 Kc4 Qc6+ Kd4 Be1 Qd1 Rh3 Qf3 Rg4 Ke3 Bf2+ Ke2 Bb6 Qf2 Ne4 Bc4 Qf7 Bb4 Rg8 Be7 Qfg7 Rg3 Bd4 Kf3 Ng5+ Kg2 Bc5 Rc3 Rd3 Qg3 Bf2 Ba6 Rd4 Rf3 Rd3 Bc4 Rc3 Bd3 Be3 Qf2 Bd4 Rh3 Be3 Nh5 Kd7 Qf3 Bf2 Nf6+
1Nqq1BR1/4QK1b/1BB3P1/brb1B2r/Q3qN2/Np3P2/Bp1k3n/6r1 w - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 cxd5 f5 e4 g5 exf5 g4 f3 g3 Ra3 Nc6 Re3 Nb8 h4 Bd7 Re2 Be6 Rf2 gxf2+ Ke2 Bc8 g4 Ra6 g5 Nd7 h5 Ne5 Rh4 Ra5 Rh1 Ng6 hxg6 Ra8 Kd3 Kd7 Kd4 Kd6 f6 c5+ Kc4 Ke5 a5 Kf4 f7 h5 g7 e5 a6 b3 d6 b5+ Kd5 b4 a7 e4 d4+ e3 d7 b2 Ke6 c4 d5 h4 d6 c3 Rh2 h3 Bc4 f1R Rg2 h2 Ba2 h1Q Qa4 c2 Na3 Nh6 g8N Rb8 a8B Ng4 Nf6 Qh7 Bc6 Rb5 Bd2 c1Q Bc3 e2 Nh3+ Ke3 Be5 e1B Nf4 Be7 f8B Qe4 Kf7 b3 Rg3 Ba5 Rg2 Qb6 d8B Bf5 Nd7 Rh5 Nb8 Nh2 d7 Bh7 Bdc7 Rg1 d8Q Qbd4 Bb6 Bc5 Qe7 Qdd1 g6 Qd7 Rc2 Qcd1 Rd2 Qc8 Rd8 Qdd3 Bh6 Qd1 Rg8 Qdd8 Bf8 Kd2
k1b2qRR/rr2P2K/1B3Bp1/qP5r/4nQ1b/3pR2q/B4NRR/Q6b w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 f4 Ke1 Nc6 Nc3 Nce7 Ne4 Nf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 a5 c4 d5 h4 Kd7 b4 Kc7 e4 Kb8 h5 g6 h6 f3 Kg3 d3 Kf4 d2 c5 d4 h7 a4 e6 f2 b6 a3 c6 a2 e5 g3 f6 g2 Kg5 Bd7 b5 Ra7 e7 Ka8 e8R Ne7 b7+ Kb8 e6 Bg7 f7 Bf6+ Kh6 Ra4 f8Q Ra3 Bc4 f1Q Bb2 d3 Rh2 Bh4 Nh3 g1Q Nf2 Bc8 Bf6 Qg3 c7+ Ka7 b8B+ Ka8 Qe1 d1B Ba7 Nd5 Bb6 Ra7 Qd6 Bb3 Qf4 Nc3 e7 Bd1 Rg8 Qgh3 Qee5 Bdg4 Re1 a1R Re3 Ne4 Ba2 Bf3 Qb2 Rc1 Qa1 Bh1 Rg2 Qe1 Rh2 Qa5 Rg2 Bd7 Rh2 Qb8 c8R Rcc7 Rg2 Rcb7 Rc5 Bc8 Rh5 Bg3 Rh4 Qf5 Rh3 Bh4 Rhh2 Qh3 Rg7 Rd8 h8R Rd5 Kh7 Rc5 Qh6 Qf4 Rgg8 Qff5 Qf4 Rd5 Bb2 Qf8 Bf6 Rh5+
4nbN1/N1bKB1p1/6R1/3B1B2/2Qn2n1/1PQ3Nk/qnP1p1n1/Nr1b3N w - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 a4 c5 dxc5 b5 axb5 Bb7 f5 Ba6 g5 Bc8 Ra3 Ra7 Rg3 Ra6 Rg4 Rf6 gxf6 hxg4 Kd2 Kf7 Kc3 d5 Kd4 e6 Ke5 e3 h4 a4 c6 a3 c7 g3 b6 g2 h5 d4 h6 a2 b7 a1N h7 d3 Nc3 e2 Bg5 e1N Nh3 g1B Ne2 d2 Nf2 Qd7 Rh6 Bc5 Nh1 Na6 b8N Bce3 Rg6 Qe8 Kd6 e5 Nc6 e4 Bg2 Nb3 Neg3 Nh6 Na7 Qg8 Qe2 d1N Qc4+ Be6 c8B Bc5+ Kc6 e3 Bd5 Ng4 Bd7 Kf8 f7 Nc7 Bd8 Ne8 Bh4 Ngf6 Bc8 Ke7 f8N Kf7 Nd7 Bf8 Nc5 Ng4 Be7 Ng2 f6 Bh2 Qc3 Nc7 Kd6 Nd4 Nb3 Ne8+ Kc5 Bg1 Na1 Bh2 b3 Nb2 Bdb7 Bc4 Bf5 Be2 Bbe4 Bd1 Bb7 Nc7 Kd6 Ne8+ Kd7 Nh4 Ne2 Bc7 Neg3 Ng2 Bd8 Ba3 Be7 Qf8 Bd8 Qb4 Be7 Qa5 Bc6 Rf8 h8Q Bb4 Qh4 Qa2 Bce4 Rh8 Bd8 Bf8 Be7 Rh5 Bc6 Kg8 f7+ Kh7 Rg5+ Kh6 Bd5 Nf2 Qe4 Rh4 Qed3 Re4 Qcc4 Ng4 Qdc3 Re6 Ne2 Rf6 Rg6+ Kh5 Neg3+ Kh4 Bd6 Be7 f8N Kh3 Nh7 Bf8 Be7 Re6 Nf6 Re4 Nfh5 Rf4 Nf6 Rf1 Ng8 Be2 Bfe4 Rb1 Bd3 Bd1 Bf5 e2
BB1Qb1B1/BQQ1nn2/4pR1p/1P1nr1Pq/3b4/7R/n3q3/KB2kNn1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Qc7 f5 Ke8 Nc3 Qd8 h4 Na6 g4 Bh6 Nce2 Nb8 Nf4 gxf4 g5 Bg7 g6 Bf8 Bd2 a5 Rc1 Ra7 Be3 Rc7 Ra1 Rc3 Bd2 Rg3 Bc1 Rg5 hxg5 Qc7 Rh6 Qb6 Rh1 Qd8 Kd2 d5 b4 Kd7 c4 Kd6 Kc2 Ke5 Kb1 Ke4 b6 h6 g7 f3 c5 a4 f7 a3 c6 a2+ Kb2 f2 b7 d3 c7 d2 b5 Ke3 f6 d4 Bc4 f1N Nf3 Kf2 Bb3 d3 Rh4 Ng3 Bc4 Bd7 c8B Be8 B8e6 Ne2 Nh2 Nd7 b8B Ne5 Bb3 Ng1 Qf3+ Ke1 Nf1 d1Q Bc2 d2 Rh3 Qd3 Bd5 Q3e2 Bb1 e6 Bb7 Ne7 g8B Bg7 f8Q Nf7 Ba8 Rh7 Qc3 Qh5 Qf3 Qe2 Qb7 Bh8 Qg7 d1N+ Ka3 Nc3 Be3 Ncd5 Bea7 Qe3+ Kb2 Qef3 Bg6+ Qd1 Rc1 a1N Bb1 Nb3 Rc2 Qdg4 Rf2 Nc1 Ka1 Na2 Qc7 Ne5 f7 Qe2 f8Q Nf7 Qge5 Rg7 Qb7 Rg6 Rf4 Rf6 Qd6 Rf5+ Qg7 Qh4 Qd8 Re5 Rf6 Qhh5 Qh7 Bg7 Qc2 Bh8 Qcc7 Bg7 Rf5 Re4+ Rc3 Bd4 Rf6 Bf2 Rb3 Re5 Rh3 Bd4+
3bR1R1/3Q4/3P1nq1/NBRprpN1/rN3r1k/3QRr2/3KPR1r/1b5q w - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 d5 a4 g5 axb5 Nc6 f4 gxf4 c5 Ke7 Ra4 Kd7 Ra1 Ke8 g4 h6 g5 Bb7 g6 Nd4 Be3 Nf5 Bf2 Bc8 Bh4 Nd6 Bg5 hxg5 cxd6 Rh6 Ra5 Rh4 Ra1 Rh8 h4 a5 b4 c5 g7 g4 b6 f3 b7 c4 b8R g3 e6 a4 h5 g2 h6 c3 b5 c2 e7 c1Q h7 a3 b6 a2 b7 f6 Rh3 Kf7 e8R Kg6 Nc3 Bf5 Rc8 Kg5 b8N Ra4 Nc6 Be7 Na5 Bb1 Rc5 Rf4 Rh2 Qc2 Nh3+ Kh4 Qd3 g1R Rf2 Rg5 Bg2 Rgf5 Ng5 Re5 Bh3 Qc8 Bg4 Bd8 Bd7 f5 Bb5 Nf6 g8Q Qe6 Qf7 Qa4 Qd7 Qe4 Rg8 Qf7 Kd2 Qg6 Rg2 f2 Re8 f1R Rf2 Bc2 Rc1 a1R Na2 Qh1 Nb4 Bb1 R1c3 Ra4 Ra3 Rf8 Rb3 Rf7 h8R+ Rh7 Rhg8 Rh6 Qd4 Rh5 Re3 Rh7 Qd3 Rh8 Rg2 R1f3 Rf2 Kg3 Nc4 Rh2 Na5 Kh4
4q2B/k2pNRpq/4QrNN/4Q3/3K1n2/bbN1QB2/bP4NP/br1b4 w - - 0 1 illegal: No proof kernel
2rbrR2/nk1B1N2/5RR1/Q1rR2p1/pK1Pbq1R/P1b2B2/r4q1Q/3B4 w - - 0 1 legal: proof: f4 e5 g4 c5 b4 d5 bxc5 h6 e4 Na6 g5 Nb4 Bb2 Nc6 exd5 e4 Nc3 Ne5 Nb5 Ng4 Bf6 Ne5 Nd4 g6 Nf5 gxf5 fxe5 f4 g6 Qe7 Bh4 Qd8 Bg5 hxg5 h4 Kd7 d4 Kc7 Kd2 b5 Kc3 a5 d6+ Kb8 d7 f5 g7 e3 c6 e2 c7+ Kb7 e6 e1B+ Qd2 a4 h5 f3 h6 f2 h7 f4 e7 f3 e8R Ka7 a3 Kb7 Be2 f1Q Rh4 f2 Nf3 Rb8 Bd1 Qe2 Ne5 f1R Nf7 Ne7 g8R Qf2 Rg6 b4+ Kc4 b3 Kb4 b2 c4 Qf4 c5 Rf2 Rb1 Bg7 Rf8 Bf6 Rc1 Qe8 d8R Bf5 Rd5 Be4 Rc4 Rg8 h8Q Nc8 Bf3 Na7 c8B+ Kc7+ Bb7 Rc8 c6 Bd8 Bd1 Rh2 Rc3 b1R+ Rb3 Ra1 Rf3 Rc1 Qc3 Kb6 c7+ Qe6 Rf1 Ra2 Qe5 Qf2 Qh2 Qef6 Qd2 Rc5 Bc6 Ra8 c8B Q6f4 Bcg4 Rc8 Bcd7+ Kb7 Qc3 Bd2 Bgf3 Bc1 Qd2 Bb2 Qc3 R5c7 Qc5 Rc6 Qa5 Rc5 Re8 Ba1 Ree6 Re8 Ref6 Bb2 Rfd6 Rf8 Nh6 Qf6 Bg2 Qe3 Rff5 Rg8 Bgf3 Qf2 Re6 Rf8 Re8 Qd6 Nf7 Qf4 Rff6 Rh8 Reg8 Ba1 R8g7 Re8 Rg8 Bb2 Rf8 Bc3+
1R1n3Q/1rrN4/1Qq4R/nN1p1qP1/pb1N1NK1/n2RrB2/5NP1/1k2n3 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 f4 Qc7 f6 Bb7 f5 Qd8 h3 Bf3 Bf4 Bg4 hxg4 gxf4 Kf2 Kf7 Kf3 h5 c4 a5 b4 d5 g5 e5 b6 a4 b7 e4+ Kf2 d3 c5 h4 b5 h3 b6 e3+ Kf3 d2 c6 h2 c7 e2 c8N e1N+ Kg4 f3 Nc3 f2 Bd3 f1Q Qe2 d1N Nf3 Nb2 Ne4 Rh7 Nd4 Nc6 b8Q Qe8 b7 Bb4 Na7 Nge7 Nab5 Nc4 Nf2 N6a5 Ra3 Ra7 Qb2 Nec6 Be2 Nd8 Bf3 Qc6 Rd3 Na3 Qe5 Rh3 b8R Rc7 Qd6 Rh7 Qc5 Rh3 Qb6 Rb7 Bd1 Re3 Bf3 Kg8 f7+ Kh7 f6 Kg6 Rg1 h1R f8N+ Kf7 Ng6 Rh7 Nf4 Rc7 Nfe6 Kg6 Rh1 Rb7 Rh5 Rhc7 f7 Qe2 Nb3 Qec2 Qh8 Qb1 Kh4 Kf5 f8N Qbc2 Nf4 Qb1 Rh6 Qbc2 Nh1 Qb1 Nd7 Qbc2 Bh5 Ke4 Kg4 Qf2 N3d4 Qf1 Ng6 Qf5+ Kh4 Nb3 Rc3 Nb1 Nf4 Na5 Bg4 Na3 Kh5 Rd3 Bf3+ Ke3 Rb3 Kd2 Nf2 Re3 Rd3+ Kc1 Kh4 Kb1 Kh5 Qff6 Kg4 Qf5+
1N3r2/2qn1q2/1bnQ1NQP/2p2RPB/2knRKp1/1R4N1/2q1N2N/1r4n1 w - - 0 1 illegal: No extended proof kernel
q2qk3/BB1pr1n1/2n2R2/1Rb3PR/3R1pK1/4n1N1/3qP1bR/2Q1qB1Q w - - 0 1 legal: proof: d4 a5 h4 e5 dxe5 b5 f4 g5 g4 gxf4 a4 c6 axb5 Qb6 h5 Qd8 g5 Ra6 Nc3 Rb6 Nd5 cxd5 Rh3 d4 Rh1 Rg6 hxg6 Be7 Bd2 Bd6 Bc1 Bf8 Kf2 h5 Kf3 f5 c4 a4 b4 a3 b6 h4 g7 d3 b5 d2 e6 h3 c5 h2 b7 a2 e7 Na6 b8Q Nf6 g8R Ng4 b6 Rh4 c6 Nh6 c7 Kf7 e8R Qe7 b7 Nb4 Nh3 Qd8 Re4 Nc6 Rg6 Bc5 Rd4 Ke8 Rf6 Rh5 Qe1 d1Q Nf2 Qd2 Ne4 Rh4 Rb1 a1Q Rb5 Qa8 Ng3 Rh5 Qa7 Rh4 b8R Bb7 c8B Rh5 Rg1 h1Q+ Rg2 Rh4 Qa1 Rh5 Kf2 f3 Rh2 f4 Ba3 Rh4 Qac1 Nf5 Qed1 Ng7 Bb4 Bf8 Bc5 Rh7 Bb6 Bc5 Ba7 Ne6 Rh5 Re7 Rh2 Ng7 Rh5 Na5 Rh2 Be4 R8b6 Nc6 Bb7 Bf5 Rfh6 Bh3 Rh5 Bg2 Qa4 Na5 Rf6 Nc6 Qaa1 Bh3 Bg2 Qhd1 Bf1 Q1e1+ Kg1 f2+ Kh1 Be6 Kg2 Bh3+ Kf3 Bg2+ Kg4 Bd5 Bh3 f1N Qab1 Nf5 Qe4 Ng7 Qh1 Be4 Kh4 Ne3 Bf1 Bd5 Kh3 Bg2+ Kh4 Nc4 Kg4 Ne3+
Qr3N1b/1QB3br/Q1prRr2/2Rn2Q1/4B2P/2nQ1p1b/2PK1k2/1r1B4 w - - 0 1 legal: proof: b4 a5 g4 g5 d4 e5 dxe5 b5 f4 h6 a4 Qe7 Nd2 Qc5 Ne4 gxf4 Ng5 Qb6 axb5 a4 Ne6 Qa7 Ng5 Qa5 bxa5 Na6 Ne4 Nb8 g5 h5 Nf2 Rh6 Ng4 hxg4 Bd2 Rh3 Bc1 Rh8 e4 Ke7 h4 Ke6 b6 d5 g6 f5 g7 f3 a6 f4 a7 d4 b7 f2+ Kd2 d3 Be2 f1R Nh3 Nd7 b8Q a3 Qb7 Rb8 a8Q g3 Qaa6+ c6 Bb2 Rf2 Re1 a2 Bc3 g2 Ba5 g1R Bc7 Ngf6 g8Q+ Ke7 e6 Rh7 e5 Bg7 Ng5 Nd5 Rb1 a1B Rb5 Nc3 Rc5 Bh8 Qg6 Nb6 Qc1 Rff1 Bd1 Nbd5 Re4 f3 Qca3 Rg4 Qab3 Rf4 Qg7+ Ke8 e7 Kd7 Ne6 Rf6 Qg5 Bb2 e8B+ Ke7 Nd8 Bh3 e6 Rh1 Bg6 Re1 Bb6+ Kd6 e7 Bg7 e8Q Rh1 Be2 Rb1 Ne6 Bh8 Re3 Bg7 Be4 Bh8 Qg1 Ke5 Nf8+ Kf4 Bd1 Ba1 Re1 Bb2 Qe3+ Kg3 Qg5+ Kf2 Bc7 Ne2 Bg6 Ndf4 Qab5 Ra8 Q5a6 Rf5 Qd5 Bbf6 Qdd7 Nc3 Re6 Rc8 Be2 Bfg7 Qd5 Rf6 Be4 Rd8 Qdc4 Ra8 Qd8 Rc8 Qaa8 Rb8 Qca6 Rb4 Qd6 Rd4 Kc1 d2+ Kb2 d1R Qd7 R1d2 Kc1 Rb4 Bd1 Rb5 Qdd5 Rd3 Qc4 Rd6 Qd3 Nfd5 Kd2 Rb1
1QR1Bk1n/1Pr5/2Bp2n1/pQN1bb1r/1r4R1/4n1Qn/2bP4/B2B1B1K w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 g4 exf4 b4 f3 bxc5 Qc7 Ba3 Qa5 Bc1 Qd8 Na3 h5 Nc4 f5 Ne3 f4 Nd5 Qf6 Ne3 Qf5 gxf5 Ba6 Ng4 hxg4 Bg2 Bb7 Bf1 Bc8 Kf2 a5 e4 g5 h4 d6 c4 Ra7 c6 Re7 h5 Kf7 f6 Rh7 c7 Bh6 b6 Ke8 c5 Na6 b7 Rd7 e5 Rdg7 f7+ Kf8 e6 Rg6 c6 Rgg7 Qb3 Nc5 Bb2 Nd7 Ne2 g3+ Kg1 g2 Nc3 g4 Na4 Ne5 Rc1 Ng6 Rh4 N8e7 Qb5 Nh8 Ba1 Neg6 Nc5 f2+ Kh2 g1N Kh1 g3 Rg4 Bd7 c8B f3 c7 Bf4 h6 Be5 Rcc4 Nh3 Rc1 Bc6 Bd7 Be4 c8B Bf5 Bc6 Bc2 Be2 f1B Bd1 f2 B8d7 Ne7 Bg2 Bf5 Bdc6 B1d3 Bf1 Bb1 Rcc4 Bbc2 Rc3 Rg5 Rcc4 Rhg7 h7 Rh5 Rc3 Rgg5 Rcc4 Neg6 Rc3 Rh4 Rcc4 Rgh5 e7+ Kg7 e8B Kf8 Bd3 f1N Rc3 Ne3 Bf1 Ke7 f8Q+ Kd8 Rg5 Rb4 Qg8 Ke7 Qb3 Kf8 Rg4 Nhf4+ Kg1 g2 Rc4 Ned5 Qg3 Nh3+ Kh2 g1R Rc3 Rg2+ Kh1 Ne3 Rcc4 Nf7 h8Q+ Ke7 Qf6+ Kf8 Qd8 Nfh8 Qb8 Ngf4 Rg7 Nfg6 Rc7 Rf2 Rc8 Rf4 Rd4 Rfh4 Rc4 Rh7 Rf4 Rc7 Rg4 Rh5
6Q1/2B2Q1r/r2pQ1n1/1Q2pQ2/3RqrnK/nnN1PN2/qR1q1P2/1Nk5 w - - 0 1 illegal: No possible last move
1RRQ2Kq/rrB5/3NQNN1/3NN1p1/1p1n4/bp1PQ3/2Pb2kr/n1n5 w - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 dxc5 d5 b4 axb4 Na3 f5 Nb1 d4 Bg2 d3 Be4 d2+ Kf1 fxe4 Ba3 Bd7 Bb2 Bb5 Bc1 Bd3 exd3 Qb6 Ba3 Qa5 Bc1 Qd8 Kg2 Kd7 Kg3 Kc6 Kf4 Kd5 Kg5 b5 Kg6 e5 Kf7 g5 h4 e3 a4 e2 f4 e1B c6 e4 h6 e3 a5 e2 a6 Nd7 h5 Ndf6 h7 Be7 a7 Bf8 c7 Ne7 c8Q Ng4 f5 Bf2 h6 e1R f6 Qa5 Qe6+ Kd4 Qde2 d1N Bf4 Qd8 Bc7 Nge3 Nc3 Nc4 Nd5 Nc3 Rb1 Nc6 Qf3 Rb8 a8Q N4a5 Qg3 Na2 Nf3+ Kc5 Rb3 Be3 Ne5 Bd2 Qe3+ Nd4 Rh4 Ra1 Re4 Rg8 h8N Nc1 h7 Rb7 Nhg6 Rh8 Qb8 Be7 Kg7 Qe8 f7 Qc8 Rb1 Nab3 f8N Raa7 Rg4 Na1 Kf7 Rg8 h8N Qd8 Nh7 b3 Nhf6 Re8 Rb2 Bf8 Ra2 Re7+ Kg8 Rh7 Ra3 Rh2 Nhf7 Qe8 Nd6 Be7+ Kg7 Qh8+ Kf7 Bf8 Qd8 Ra6 Qe4 Nf5 Nde8 Rc6 Ra8 Ra6 Rb8 Raa7 Qe1 Be7 Ra4 Bd6 Ra5 Be7 Bd6+ Kd4 Qg3 Rh1 Ra6 Rh2 Rc6 Bf8+ Rc7 Be7 Rcc8 Bf8+ Bc7 Ba3 Qf3 b4 Qf1 Rb5 Nd6 Rbb7 Nde7 Ke3 Qg1+ Ke2 Ned5 Nd4 Qg3 Kf1 Qe3 Qh3 Kf8 Kg2 Kg8 Qh8+
Q2br2k/Q3P3/p3RK2/1r4B1/2pPB1nb/2N2BnB/Q1r4p/R3n1Bq w - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 a4 b5 axb5 e5 fxe5 Ke7 Nc3 Bd7 Nd5+ Ke8 Nf4 gxf4 h3 Nf6 g5 Bg4 hxg4 Ng8 Kf2 c5 Kf3 h5 Ke4 f3 Kf5 a6 b4 c3 e4 h4 d4 f2 g6 c4 b6 c2 g7 f6 g5 Kf7 g6+ Ke8 e6 h3 b7 Ke7 e5 Rh6 b5 Nd7 b8Q Nc5 b6 Nd3 b7 Qd5 Qe2 Ne1 Qa7 Qc6 Rh2 Qh1 b8B+ Ke8 Bf4 c1B Qa2 Be7 Ne2 Rh4 Bh6 Bg5 Nc3 Rh5 Bd3 f1N Re2 Bb4 Re4 Ba5 Re3 Bc7 e7 Bh4+ Ke6 f5 Be2 Nf6 g8B f4 g7 f3 Bh7 f2 g8B Nd7 Bf3 Rf5 Bg5 Bb6 Bd6 Rb8 Re4 Rf8 Bf5 Ba5 Bgh7 Rb5 B5g4 Rh8 Kf5 Kf7 e8Q+ Kg7 Qea8 h2 Bh3 Re8 Be3 Bb6 Be7 Kh8 B7g5 Ng3+ Kg6 Nf6 e6 Ba5 e7 Ng4 Re6 Bd8 Kf7 f1R Bb1 Nc2 Bg1 Rf2 Kg6 Ne1 Bbe4 Rc2 Kf7 Ne3 Kf6 Ng4+
1Q1BbBN1/3BR3/bppKBBRR/2r3nr/1qQ5/2nb1P2/p5P1/3q2k1 w - - 0 1 illegal: No proof kernel
2Q1bQ2/r4P1p/qQ2bRq1/R2N2k1/1B1n3R/1p2Nr1n/QpPQ4/r6K w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 c5 dxc5 g6 e5 f6 exf6 Kf7 Qd2 Ke6 f7 Ke5 Qe2+ Kd5 Qd1+ Kc6 h4 Ra6 g4 Ra7 f4 Qb6 f5 Ra8 f6 Ra3 g5 Bh6 Bh3 Qa5 Bf5 gxf5 g6 Bg5 hxg5 Qd8 Qd4 Ra5 Qd1 Ra8 Kf1 b5 Kg2 d5 f8Q Kd7 a4 Ke6 g7 f4 a5 Kf5 a6 e5 c6 d4 c7 d3 a7 d2 g6 e4 Ba3 e3 Qf7 b3 Nc3 e2 Qe6+ Kg5 Bb2 e1R Qe7 f3+ Kh2 f2 Ra5 f1Q Nge2 Be6 c8Q Nc6 Ba3 b2 Qeb7 Qb6 Bb4 Nge7 g8Q Nd5 g7 Nf4 Nd4 Nh3 Qgf8 Ng1 Nf5 Nd4 Ne3 Qa6 Qb6 Qd3 g8Q+ Qg6 Qe2 d1B Qd2 Bh5 Ncd5 Ra1 Qgf7 Rg8 Kg2 Rg7 Rh4 Rf1 Kh1 Rf3 Qfc7 Re7 Qc4 Rg7 Qa2 Rb7 Be7 b4 Bc5 b3 Bb4 Rab8 a8R Ra7 Qc4 Rd8 Rc8 Re8 Rc6 Rea8 Qcc5 Qg8 Qc4 Be8 f7 Qg7 Rd6 Qg6 Qc8 Rc7 Rd8 Bf5 Qb1 Qc4 Rb5 Ra1 Qa2 Ra7 Ra5 Qa6 Rd6 Bg4 Rf6 Bh3 Qb5 Be6 Qb6 Nh3+
r4B2/2PpBr1b/1N1R1bkP/1K1Rr3/QRp5/2n1qBB1/Q5pn/2B2q2 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 d4 c6 d5 cxd5 c4 Nh6 c5 Ng8 Na3 Rh6 Nc4 dxc4 Ra2 Rh7 Ra1 Rh8 Kd2 Kf7 Kc3 a5 b4 g5 f4 e5 h4 a4 f6 e4 f5 e3 c6 g4 h6 a3 b6 e2 b7 e1R b5 a2 h5 g3 b6 g2 h7 Re2 h6 Re8 Nh3 Be7 Nf4 Bd6 Nd5 Na6 b8B Bf8 b7 Ne7 Qa4 Nb4 Nb6 Ng8 Bg3 Re4 b8R Bb7 c7 Nd3 Be2 Ne5 Bf3 Qe7 Rd1 Bg7 Rd6 Ng4 Kb4 Nh2 Kb5 Re5+ Rd5 Qe6 Rb1 a1Q Rb4 Ne7 Re8 Rg8 h8Q Rf8 Qh7 Qb1 Qg6+ Kg8 f7+ Kh8 Qg5 Kh7 Qd2 Bf6 Qda2 Qd3 Rb8 Qf1 Re8 Re3 Rd6 Be4 Rb8 Nd5 Re8 Bg5 f6 Kg6 Re7 Qh3 Re5 Bc2 Rf5 Re7 Re5 Rfe8 f8B Rf7 Be7 Nc3+ Kc5 Be4 Red5 Bh4 Bf8 Re5 Be7 Rh7 f7+ Bf6 f8B Rf7 Bb2 Kg5 Ba3 Bh7 Bc1+ Kg6 Bf2 Ne4+ Kb5 Qg3 Be1 Qf4 Bf2 Qe3 Bg3 Nc3#
K2BBb2/1P2PNkb/1r1p4/pQ4q1/rN2r2q/p3RQBB/7B/n1Q4n w - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 d4 e5 fxe5 h5 dxc5 f5 g4 Ba6 gxf5 Bb7 Ra3 Ba6 Rg3 Bc8 Rg4 hxg4 Kf2 Kf7 Ke3 g5 Kd4 a5 Kd5 d6 h4 a3 e4 g3 c4 g4 f6 g2 e6+ Kg6 b5 g3 e5 Bd7 c6 Bg7 c5 Bh6 b6 Qe8 c7 Bc8 e7 Bf4 c6 Ra7 f7 Bf5 f8B Bh3 c8Q Qd8 e8B+ Rf7 c7 Qg5 h5+ Kh7 h6 Qd8 e6 Qf6 Qb7 Na6 Kc6 Re7 c8Q Qd4 Qf3 Qd1 Nc3 Nc5 Na2 Nb3 Nb4 Bf5 Nh3 Nf6 Ng5+ Kg8 Rh4 g1R Rh3 g2 Nf7 Qe1 Qa6 Bh7 Qb5 Be5 Bf4 Nh5 Bg3 Bg7 b7 Na1 Kb6 Qe4 Ka7 Qh4 Qc1 Rh1 Bh2 g1Q+ Ka8 Qgg5 Bg2 Rd1 Rg3 Rd4 Bh3 Rc7 Be7 Rc6 Bd8 Rb6 e7 Re4 Qbf1 Bf8 Qb5 Bf5 h7+ Kg7 Qf2 Bg6 Re3 Ng3 Qg2 Rg8 Qf3 Nh1 h8B+ Kh7 Bc3 Rh8 Ne5 Kg7 Be1 Rh5 Bf2 Bh7 Nf7 Rh6 Be1 Rf6 Beg3 Rff4 Na2 Ra4 Nb4 Re4
Q2rb1N1/B1n1q2b/pPQ1p3/1r2n1b1/K1BN1b1P/2p1NNQ1/2R5/N6k w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 g5 g4 h6 f4 gxf4 g5 h5 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 f3 h4 a6 b6 e6 b5 g3 f6 c4+ Ka4 f2 f7 c3 b7 g2 g6 Qf6 g7 Qe5 Qf3 Rh5 Rh2 Bd7 Na3 Rh6 Be3 Nf6 g8N Qf4 Bc4 f1B Nc2 Bc8 Na1 Be7 f8N Bd7 Nh7 Ne8 Nhf6 Rh5 Ng4 Nc6 b8Q+ Nc7 Qb7 Rd8 Qg3 Be2 Nf3 g1B Qc8 Bf1 Rc2 Bh2 Bg1 Bh3 Ne3 Bf5 Bf2 Be8 Qb7 Kd7 d6 Ne5 d5 Bh7 Bg1 Bg5 Qc6+ Kc8 Bf2 Qf8 d7+ Kb8 d6 Qe7 Qh3 Bhf4 Qg3 Rc8 d8Q Ka7 Qa8+ Kb6 d7 Kc5 Bg1 Rb8 Qc8 Kd6 d8N Kc5 Ne1 Kd4 Nc6+ Ke4 Qd7 Rd8 Nf3 Qc5 Nd5 Qd6 Ba7 Qe7 b6 Kf5 Qe1 Kg4 Ncd4 Kh3 Qe3 Kg3 Qdc6 Kh3 Qd3 Kg3 Ne3 Kh3 Nd2 Kh2 N2f3+ Kh1 Qg6 Bf6 Qg4 Rf5 Qg3 B6g5 Bd3 Ng4 Be2 Rb5 Bc4 Ne5
2Rr3q/Q1pk1nRn/1Qpb4/1P2R1QB/QNK2Q2/p1N5/Pr4bn/6n1 w - - 0 1 legal: proof: d4 f5 e4 e5 dxe5 Nc6 exf5 Nb8 c4 Nh6 c5 Ng8 c6 bxc6 f4 g5 fxg5 h6 g6 Ba3 Bd2 Be7 Bc1 Bf8 g4 Bc5 g7 Qf6 g5 Bf8 g6 Qd8 Bg5 hxg5 Ke2 a5 Kd3 d5 h4 a4 b4 d4 f6 g4 e6 a3 b5 g3 h5 g2 h6 Bb4 f7+ Ke7 h7 Ra4 Nc3 Kd6 f8Q+ Ne7 g8R Ra8 g7 Ba6 Nf3 g1N Be2 Qe8 Ne5 Nd7 Kc4 d3 Bh5 d2 Nd3 Rd8 Qa4 Bc8 Re1 d1N Re5 Nf2 Qf4 Nd5 e7 N5f6 Rh2 Qf8 e8Q N2g4 Rg2 Nh2 Qf7 Bc5 Nb4 Qe8 Rf8 Rg8 h8Q Nh7 Re4+ Qe5 Qg5 Qf6 Re5 Qh6 Rfe8 Rf8 Qf1 Rf2 g8Q Rb2 Qgf4 Qf6 Qgg5 Qf8 Qhg7 Qh8 Qe2 Ndf6 Qee4 Nfg4 Qa7 Nh6 Qc2 Bg4 Qca4 Nf7 Rg3 Kd7 Qg8 Rb8 Rc8 Bh3 Q8g6 Bf8 Qge4 Be7 Qee3 Bg2 Qeb6 Bc5 Qh6 Be7 Rg7 Bd6 Qhg5 Ra8 Rf8 Re8 Rfg8 Re7 Ra8 Re8 Rc8 Rd8
1R4Q1/1N2B3/1q1qn1n1/P1R4P/3Q1R1b/pR1br3/RKpk1pB1/5nBb w - - 0 1 illegal: No possible last move, all moves rejected
1bBK1B2/qR6/R1q2RP1/pN3p1Q/kP3r2/Bn1p2q1/b3R2n/2b1Q1R1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 g6 exf5 Na6 d4 Kf7 f6 Ke6 f5+ Kd6 f7 cxd4 f6 Nb8 h4 a5 g4 Qe8 g5 Bg7 h5 Qd8 Nc3 Bf8 Nce2 Ke5 Ng3 Kd6 Nf5+ gxf5 Ra2 Nh6 Ra4 Rg8 Ra1 Rg6 hxg6 Ng8 Kf2 Kc5 Ke2 Kd6 Ke1 Qb6 Bd2 Bg7 Kf2 Nh6 Rh3 Bb7 Rb1 Nc6 Be2 Rh8 Bf1 Qd8 Bc1 Ng8 Ra1 Bf8 Rh1 Nb8 Ke1 Bc8 Kd2 Kc5 Kd3 Kb4 c4 d5 c5 e5 c6 h5 c7 h4 b6 h3 b7 h2 g7 Nc6 g6 Be6 c8Q Qd7 Qh5 Bd6 f8R Bb8 f7 Nf6 g8R Ng4 Ra2 Kb3 Qe8 e4+ Kd2 d3 Nf3 d4 Rg1 h1Q Bg2 Kc4 b4 Kb5 Ba3 Ka4 Rc2 Ba2 Rb2 Bc7 b8R Nh2 Rb7 Bb8 Qe7 Rh6 Qeh4 Qc7 Qe1 Qb6 Rg7 Qa7 Rb6 Rh7 Ra6 Rh8 Ne5 Rh6 Nc4 Rh8 Nd6 e3+ Kc1 e2 Kd2 Rh7 Nb5 Rh8 Be4 Qf3 Bd5 Qg3 Be6 Rh7 Bc8 Rh8 Kc1 d2+ Kc2 d3+ Kc3 Nd4 Rh7 Nb3 Kc4 d1Q Kd5 Qc2 Ke6 Bd6 Rg7 Qc6 Rh7 Bc7+ Ke7 Bf4+ Kd8 Bb8 Qf2 e1B Re2 Bd2 Qe1 Qc4 Rfe8 Qe4 f8B Bc1 Rb7 Qc6 R8e6 Rh7 Rf6 Re7 Qf3 Re4 Qh5 Rf4
B2Q2qQ/2nQ4/2pQb1p1/1PB1B3/3K1b2/P2R2pN/2rQbN1k/1r4rq w - - 0 1 legal: proof: b4 a5 bxa5 b5 e4 f5 exf5 d5 g4 h5 a3 hxg4 c4 b4 Ra2 Nc6 Rc2 Na7 Rc3 Nb5 cxb5 Nh6 Rc6 Ng8 Rc4 dxc4 Ke2 Kd7 Ke3 Kd6 f4 e5 h4 g3 d4 g6 f6 e4 h5 c3 f7 b3 h6 b2 h7 c2 f5 Qh4 d5 Ke5 d6 Nf6 d7 Rb8 d8Q Bd6 f8Q Be6 a6 Ne8 f6 Kf5 a7 Rc8 a8Q Bf4+ Kd4 e3 f7 e2 Qd2 Kg4 Nh3 e1R Nc3 b1B Qd7 Qd8 Bb2 c1Q Qfd6 Bd3 f8B Be2 Bg2 Rg1 Nd1 Kh4 Bb7 Qc6 Rh2 Qh1 Be7+ Kg4 Rf2 Rf8 h8Q Rf5 Rh2 Rc5 Rf2 Rc2 Rf3 c6 Rc3 Nc7 Rd3 Qg8 Ba1 Re8 Qad8 Rf8 Ba8 Rf5 Bb2 Re5 Bf8 Re3 Ndf2+ Kf3 Bg7 Kg2 Be5 Kh2 Bc3 Rb1 Bb4 Rg1 Bc5 Rf3 Ne4 Rff1 Nef2 Rb1
nRn1B3/4qn2/1Rp3b1/4k3/Q2p2BP/1pQ2nPQ/1rBB3b/nB1K3N w - - 0 1 legal: proof: d4 a5 f4 b5 b4 axb4 c4 g5 fxg5 e5 dxe5 b3 g3 h5 Nd2 b4 Ndf3 Ra5 Nh4 Rb5 Ng2 h4 cxb5 h3 Qd3 hxg2 Qc2 Ne7 Qd1 Ng8 h4 Ke7 e4 Ke6 a4 f5 a5 d5 g6 d4 g7 f4 a6 c6 b6 f3 a7 b2 a8Q b1N b7 Rh7 Qc2 f2+ Kd1 Nd2 Qc3 Rh6 Ra6 Rf6 Bd3 f1N Bb1 Nh6 g8B+ Nf7 Rb6 Nb3 Bd2 Bh6 Qa4 Na1 Bh7 Rf2 Nh3 Na6 b8Q g1N Rh2 Rg2 Nf2 Be3 Nh1 Qe7 Qa8 Bd7 Qc8 Nc7 Bg6 Rf2 Bh5 Na8 Bg4+ Rf5 Rf2 b3 Re2 Nf3 Re1 Nh6 Bc2 Bg1 Re2 Kf7 e6+ Kf6 Rf2 Nf7 e5+ Kg6 Bb1 Be8 Re2 Bh2 Bc2 Qg5 e7 Kg7 e6 Kf6 Re5 Qg7 Reb5 Ne3+ Kc1 Nd5 Kd1 Rf4 Rb8 Ke5 R5b6 Re4 Qd7 Re2 Qc8 Bd7 e8B Rg2 e7 Bf5 Bd7 Bg6 e8B Ne7 Bdf5 Re2 Qd7 Nc8 Bb1 Qf6 Bfc2 Qe7 Bh5 Re3 Qh3 Rd3 Qcb4 Rc3 Bg4 Rc5 Qc3 Ra5 Qab4 Ra2 Qa4 Rb2
R4nN1/1R2Pp1n/7r/2QnNN1k/NB4p1/3Q3P/1qp1r3/n1NrQbK1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 g3 b5 axb5 Bc5 Bh3 Be7 Bg4 Bh4 gxh4 hxg4 Kf2 a5 d4 g5 b4 c5 e4 c4 b6 a4 h3 c3 b5 a3 d6 a2 e5 f3 d5 c2 b7 Nc6 b8N Be6 h5 Qe7 h6 Nd8 d7+ Kf8 h7 Kg7 b6 Kh6 d6 Qf8 b7 Qg7 Nc6 Qf8 b8N Nb7 d8Q Qe7 d7 Qf8 Ne2 g3+ Kg1 g2 Ncd4 Ra4 Qe7 Qd8 Qe1 Bc4 e6 Kh5 Nbc6 g4 Ne5 Qb6 d8Q Qb2 Nbc3 Nc5 Nf5 Nd7 Qc5 Ngf6 Bd2 Nf8 Nc1 Bf1 Qd3 Re4 Na4 Re2 Rb1 a1N Bb4 Rg8 h8N N6h7 Nhg6 Rh8 Nge7 f2+ Kh2 g1R Ng8 Ng5 e7 Rh6 Qc8 Ngh7 Qc5 Rg3 Rg1 Rge3 Rg3 Rd2 Rf3 Ree2 Rf4 Rd1 Rd4 Bg2 Rd8 f1N+ Kg1 Ne3 Ra8 Nd5 Bd2 Qc3 Rb7 Qb2 Bb4 Bf1
2R1qNQ1/1pP2Q2/1k1rB1Br/1nn2B2/p3qP1Q/1n4b1/3KnBRp/1B6 w - - 0 1 illegal: No proof kernel
1n6/p1PN3n/1P3Q1b/K1RR2qk/R1Npr1R1/1n1Rr1n1/1p2BQN1/7q w - - 0 1 legal: proof: e4 h5 b4 f5 exf5 b5 c4 c6 g4 Nh6 gxh5 Ng8 a4 Rh6 Ba3 bxa4 b5 c5 Bb4 cxb4 d3 Bb7 c5 Rh8 Ne2 Bd5 Ng1 Bc4 dxc4 Rh6 Qf3 Rh7 Qd1 Rh8 Kd2 Kf7 f4 d5 h4 g5 f6 e5 h6 Kg6 c6 b3 Kc3 a3 f5+ Kh7 h5 g4 f7 g3 b6 a2 c7 b2 c8R g2 f6 e4 c5 d4+ Kb4 e3 Nd2 e2 Ngf3 e1Q Rh3 g1N Be2 Qd6 Ka5 Qdg3 c6 Qef2 Qc2+ Qg6 Nc4 Qe4 Ne1 Na6 Rd3 Qe6 Ng2 Bg7 f8Q Qfe3 f7 Nf6 c7 Q6h3 Rd8 Nb8 Rd5 Qhf3 Qd6 Re8 f8N+ Kh8 h7 Qg5 Qe5 Bh6 Nd7 Kg7 h8R Qh3 Rc5 Qh1 Rg8+ Kf7 Rg6 Nh7 Rd6 Re7 Rdd5 Re6 Qf5+ Kg7 Qf2 Re3 Qa4 Re4 Qc6 Re3 Bg4 Ne2 Qcf6+ Kg8 Bf3 Ng3 Be2 Re4 Rg1 a1N Ra3 Na6 Ra4 Rae8 Rd1 Nb8 Rd3 Bg7 h6 Nb3+ Kb5 Nf8 h7+ Kh8 Q6f4 Bh6 Kb4 Kg7 h8R Kg6 Rg8+ Bg7 Kb5 Nh7 Qf8 Re3 Q8f3 R8e4 Qf4 Rf3 Qf6+ Kh5 Kb4 Bh6 Kb5 Qe5 Rg4 Qg5 Kb4 Rfe3 Kb5 Nd2 Ka5 Nb3+
r1RN1rk1/2N2b2/Bnp1pb2/1P1BBb1K/1p2QQ2/4P3/1n2B1B1/b3r1N1 w - - 0 1 illegal: No possible last move, all moves rejected
q2q2q1/1Q2r3/2N1p3/NqpNr3/RNBn4/b2RPP2/3p1QNR/3k1r1K w - - 0 1 illegal: No possible last move, all moves rejected
Q2b1N1r/pQ1B2p1/1r6/k2pKnr1/2QrN3/1n1B4/P2P1B1B/1rnR1B2 w - - 0 2 legal: proof: f4 c5 b4 b5 g4 e5 c3 exf4 c4 f3 bxc5 b4 Bg2 Qb6 Bf1 Qb5 cxb5 Be7 Qb3 Bd6 Qd1 Bf8 Nh3 h5 Ng1 f5 Na3 f4 Rb1 Bb7 Ra1 Be4 Rb1 Bf5 gxf5 Kd8 Rb3 Rh7 Rd3 Ke7 Rd6 Rh8 Rg6 Ke8 Rg4 hxg4 Kf2 Kd8 h4 Kc7 e4 d5 f6 b3 f7 b2 e5 b1N e6 Nh6 b6+ Kb7 h5 Be7 f8B Bg5 c6+ Kc8 e7 Nd7 e8B Bf6 c7 Kb7 c8B+ Kc6 b7 Kb6 b8Q+ Ka5 Bca6 Be5 Qdb3 Bd6 Nh3 Ng8 h6 Ne7 h7 Bc7 Bb2 Nf5 Q8b7 Bd8 Qc4 Rb8 Ng5 Nc3 Nb1 Ne2 Be5 Nc1 Nc3 Nc5 Bd7 N5b3 Bc5 g3+ Ke1 g2 Kf2 g1R Ne6 Bb6 Nf8 Rg5 Ne4 Bd8 Bd3 Be7 Rd1 Bd8 Kf1 f2 Be3 Ng3+ Kg2 f1R Bf2 f3+ Kh3 Nf5 Bh2 Re1 Bf1 Re3 Bab5 Rd3 Ba6 Rh5+ Kg4 Rd4 Kf4 Rg5 Bab5 Rg6 Ke5 Rg5 Bh4 f2 Bd3 f1R Bf2 Rg8 h8Q Rfg1 Qh6 Rh8 Qhc6 Rg6 Qa8 R1g5 Qcb7 Rb6 Bf1 Ne2 Qcc8 Nec1 Bbd3 Na1 Qc2 Rb1 Qc4 Nab3 Qbc6 Rb4 Qcb7 Rb6
2qQ1R2/2p3pR/4P1pQ/k1q1p3/1R1N2Bb/nP4rr/3R1n1b/KR1NN3 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 Nc6 dxe5 Qf6 g4 Nb8 b4 Qd8 g5 Bb7 g6 hxg6 e4 Ke7 e6 f6 e5 Nc6 Bb2 Nb8 Bc3 Bd5 Bb2 Bb3 cxb3 Ke8 e7 Kf7 Bd4 Ke6 Bb2 Kf5 e6 Kg5 Be5 fxe5 Nc3 Kf5 Nb1 Kf6 Kd2 d5 Kc2 a5 Kb2 d4 e8R d3 h4 a4 f4 d2 b6 Qc8 h5 Qd8 h6 Qe7 f5 Qc5 h7 Na6 b5 Nb4 b7 Be7 b8N Nc2 b6 Nh6 b7 Ng4 Be2 Na3 Nc3 Nf2 Nc6 Rd8 b8R Rd3 Rb4 Rg3 Nf3 Bd8 Qc1 d1Q Ne1 Qd7 Rb1 Qc8 Nd4 Be7 Bg4 Bd8 Rg8 Ke7 f6+ Kd6 f7 Bh4 Nd1 Kd5 Nb5 Kc6 f8R Kb6 Ka1 Ka5 Qd2 Nc4 Qd7 a3 Qd8 a2 Nd4 Na3 Rh2 Nd3 Rd2 Nf2 Rf3 Be7 Rgf8 Bh4 Kb2 a1B+ Ka2 Rg8 h8Q Bc3 Qh7 Rh8 Qh6 Bb2 R3f5 Bc1 Ka1 Rh7 Rh5 Rh8 Ra2 Bf4 Rd2 Rh3 Qhg5 Bh2 Rh7 Rg3 Rf4 Rf8 Qh6 Rf5 Rf3 Rg5 Rf8 Rh3 Be2 Rg2 Bg4 Rgg3
1nRK1N1Q/Q3Q1rr/1nrp1R2/1BPPbNk1/4Q3/2p4q/2p3p1/n3QN2 w - - 0 1 legal: proof: g4 h5 gxh5 a5 e4 f5 exf5 a4 b3 a3 Bb2 Ra7 Be5 Ra4 Bb2 Ra8 c4 axb2 Be2 b5 Bd3 bxc4 Be2 c3 Bf1 c2 Ne2 c5 Ng3 c4 Ne2 c3 Ng1 Bb7 Na3 Ba6 Nb1 Bc4 bxc4 Ra3 Nh3 Ra4 Ng1 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 g5 d4 e5 a4 e4 f4 e3 h4 d6 a5 e2 a6 e1N h6 Nd3 d5 Nd7 c5 Rh7 a7 Nb6 h5 Qc7 Qe1 Qg7 Nf3 Nc8 Nd4 Nce7 Nd2 Rd8 a8Q b1R Qa7 Rh8 h7 Rc1 h6 Nb4 Bb5 Rd7 Nf1 Rc7 Rg1 Kf7 f6 Kg6 f7 Nec6 Nf5 Nd3 Ra3 Be7 f8Q Bf6 Qfe7 Be5 Rg2 Rc8 Rf2 Nb8 Ra6 Ra1 Rc6 Nc1 Qe4 Nb3 Qe1 Rd8 Rc8 Rd7 Qe4 Ra6 Qe1 Bd4 Q7e4 Ne7 Rf3 Rhd8 h8Q Rg8 h7 Qh6 Qhe5 Rc6 h8Q Na1 Rf2 Rg7 Rf3 Ng8 Qe7 Qh7 N5e3+ Kh6 f5 Be5 f6 Rb7 f7 Nf6+ Kh3 g4+ Kh4 g3 f8N g2 Rf5 Nfd7 Rf6+ Rg6 Kh3 Bd4 Nf5+ Kg5+ Kg3 Be5+ Kf3 Qh5+ Ke3 Bf4+ Kd4 Rg7 Kc4 Be5 Kb4 Nb6 Ka5 N8d7 Ka6 Qh3 Ka5 Rb8 Ka6 Ra8 Kb7 Nb8 Rc7 Nc4 Kc8 Nb6+ Kd8 Rh7 Rc8 Rg7 Qab7 Ra7 Qa6 Rac7 Qa7 Rh7 Qe6 Rcf7 Qee7 Rfg7
2Q4R/r2NnpBb/RQN1PKp1/r2b1R2/3Nn3/1R4bp/p4PR1/k6n w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 e6 axb5 Ke7 d4 Nh6 d6+ Kf6 d7 Na6 d5 Nb8 d6 Ng8 g4 h5 Bg2 Ke5 Bd5 exd5 Qb3 Kf6 Qd1 Ke6 Bg5 h4 Be3 Qg5 Bc1 Qh5 gxh5 Nf6 Qa4 Ng4 Qd1 Nxh2 Kd2 Ke5 Kd3 a5 d8Q c5 e4 a4 b4 h3 d7 d4 b6 a3 b7 Bd6 b5 Rg8 h6 Ra4 b6 Ra5 h7 Rh8 Bh6 Nf3 Nc3 Nc6 b8R Nd2 b7 Ne7 Rh2 Rf8 h8R c4+ Kc2 Ra7 Na2 c3 Kd3 c2 Ne2 Ra5 Rg2 c1N+ Kc2 d3+ Kc3 Ra7 Qb3 Bc7 Nd4 Ne2+ Kb4 Re8 Kc5 Ng3 Qb6 Nh1 Nb4 Rg8 Qe8 Rf8 d8R Be6 Rd7 Bd5 Qc8 Re8 Rd6 a2 Rb1 Rg8 Rb3 Rd8 Ra8 Rd7 Rf6 Ra5+ Qb5 Bb8 Raa6 Bc7 b8N Bd6+ Kb6 Ra7 Qbc6 Nb1 Rf3 d2 Qb5 Bc7+ Kc5 d1B Rf4 Nc3 Rff6 Ra3 Qb6 Bg4 Rf3 Bf5 Rf4 Bh7 Rf6 g6 Bg7 Bc6 Kc4 Ra5 Rf5+ Kd6 Nd7 Bb8 Nb5+ Ke6 Kd4 Bg3 e5 Ne4 Nd6 Ba8 Nc6 Bb7 Nb5 Ba8 Kd3 Kd5 Nbd4 Bb7 Ke3 Kc4 e6 Ba8 Kf3 Bb7 Kg4 Ba8 Rb4+ Kc3 Rb3+ Kd2 Nd8 Bd5 N8c6 Kc1 Nb5 Nd6 Kg5 Kc2 Kf6 Kc1 Re3 Kb2 Nbd4+ Ka1 Rb3 Ne4+
rn1r4/1bPrppNp/2k1r3/1NB1R1N1/4N2P/1Q1N3K/1R1p2q1/Rb4Q1 w - - 0 1 legal: proof: d4 c5 Kd2 cxd4 a4 b5 axb5 d5 e3 d3 Qg4 g6 Kc3 d2 Qd1 d4+ Kc4 d3 Kb3 Bh3 Kc3 Bc8 f4 Bd7 Kd4 Nf6 g4 Qc8 Bg2 Qd8 Be4 Bh6 Bf5 Bg5 fxg5 Ng8 Ke4 gxf5+ Kf3 Bc8 Kg2 Nc6 Kf1 Nd4 exd4 Qd7 Kf2 Qc7 Kf1 Qd8 Kg2 Kd7 b4 a5 h4 a4 c4 f4 b6 f3+ Kh3 a3 g6 f2 g5 f1R b5 a2 c5 Rf2 b7 Rf5 b8N+ Kc7 c6 Ra5 b6+ Kd6 b7 Ra4 d5 Qb6 g7 Raf4 g6 Rc4 c7 Rb4 Na6 Qd4 b8R Ra4 Nb4 Qb2 Qb3 d1B Nc3 d2 Nd3 Rb4 Nb5+ Kd7 d6 Bh5 Nf3 Ba6 Re1 Re5 Ng5 Nf6 g8N Bb7 g7 Re6 Re5 Kc6 d7 Qb1 Bb2 Qg1 Ba3 Rd4 Bc5 Bg6 d8N+ Kd7 Rd1 a1R Rc1 Ra8 Ra1 Red6 Nde6 Kc6 Ra3 Re4 Ra1 Nd7 Nf6 Rd8 g8Q Red4 Ng7 Re6 Nc1 Bb1 Nfe4 Ba6 Rb7 Nb8 Nd3 R4d6 Ra7 Bc8 R7a2 Bb7 Rb2 R6d7 Nf5 Na6 Nf3 Qd4 Qg1 Nb8 Nfg5 Qf2 Ng7 Qg2+
4B2r/k1p2Qp1/2PK1P2/NBNp1rRQ/QN1bp3/3r3n/3QQ3/1br2n2 w - - 0 1 illegal: Other
k2nr3/4B1P1/n5q1/p2p4/P1rnbQN1/1B2pNp1/2Rp1QBQ/B4KB1 w - - 0 1 legal: proof: f4 c5 b4 e5 bxc5 g5 a4 h5 g4 Bh6 gxh5 g4 d4 Bg5 fxg5 f6 e4 exd4 e5 f5 Ra3 Qb6 Re3 Qd8 Re4 fxe4 h4 a5 c4 b5 h6 g3 e6 d6 h7 b4 c6 b3 g6 d3 c5 b2 e7 Be6 h5 Bd5 h6 Na6 c7 Kd7 e8Q+ Kc8 Qh5 Kb7 c8B+ Kb8 c6 Nf6 c7+ Ka7 Rh2 Qd7 Nd2 b1N Ndf3 Qh3 Qee5 Nc3 Be3+ Nc5 Bg2 Ng8 Qf4 Qd7 Ne5 Qh3 Be6 Qh4 c8Q Rb8 Ng4 Ne2 Qcf8 Ka8 Nf3 Ne7 Bg1 e3 Kf1 Be4 Bb3 d5 Q8f7 Rhc8 h8B Rc6 h7 Nd4 Bf6 Qg5 h8B Na6 Qh3 Rc5 Qhh7 Nec6 Be7 Rc4 Qh3 Nb5 Ba1 Nd8 g7 Qg6 Q7f6 Rbc8 Qb2 Rb8 Qf2 Nd4 Qa2 Qb6 Bh1 Nb7 Rf2 Qh6 Bg2 Qg6 Qh2 Re8 Qd2 Nd8 Qe1 Qd6 Rc2 d2 Qf2 Qg6
2q3QK/p3kp2/P2NB2b/p2p3p/3N2RR/Q2RbP1R/1NRrrq1n/8 w - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 b6 a4 Ba6 a5 Nh6 Bd2 Bc8 a6 Ng8 Ba5 bxa5 g5 d6 Bh3 h6 Bg2 Bf5 Bf1 Bh7 g6 Qf6 gxh7 Qd8 h3 g5 Nd2 Nd7 Nb1 Ndf6 h4 g4 Rh2 Ne4 Rh1 Ng5 hxg5 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 d3 Kc3 d5 Kd4 d2 Ke5 g3 c4 g2 e4 Rc8 g6 Nf6 c6 Bc5 c7 Ke7 g7 Qf8 g8Q Qe8 f3 Ba3 c5 Qb5 c6 Ne8 Qc1 d1Q Nc3 Qdb3 Nd1 Q3d3 Rh3 Nf6 Ne2 g1B Nd4 Rb8 c8R Qc3 c7 Qc2 Nb2 Bc5 Ra3 Rb6 Rd3 Qg2 Rb8 Qc6 c8R Rb3 Rb4 Qf2 Kf5 Nd7 e5 Nb8 e6 Qd7 Ke5 Bb6 Rc2 Qc8 Qa1 Rc3 Qa3 Nd7+ Kf5 Bc7 Rh4 Bd6 Bh3 Bf4 Bg4 Ne5 Rh3 Kd6 Kf6 h5 Kg7 Rc5 e7 Be3 e8N+ Ke7 Be6 Ng4 Nd6 Nh2 Nb3 Rc3 Rbh4 Rc7 Nd4 Bc1 Re2 Rc2 Ree4 Rd2 Reg4 Qc3 Qc8 Re8 h8R Qc5 Qb8 Qc8 Rg8 Rd1 Kh8 Bh6 Qa8 Qf1 Rg2 Bge3 Rc2 Qf2 Kh7 Rd2 Rgg4 Rg8 Qb8 Rg5 Qa8 Re5 Qb8 Qd7 Qg8 Qc8 Kh8 Bef4 Kh7 Ree2 Kh8 Be3
b1RRr3/1r2P1Q1/knpr1Qq1/7R/3q1nNb/1N1n1Kb1/q1P2BQ1/2QQ4 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 e4 d5 Ke2 Kd7 h4 g5 b4 a5 f4 c6 h5 Kc7 e6 Kb6 e5 d4 h6 g3 e7 d3+ Kf3 a4 e8Q d2 h7 a3 f5 a2 e6 Ne7 f6 Nd7 f7 Nd5 Rh2 Bd6 f8Q Nc5 e7 Bb7 Qg7 Ra7 Rh5 Ba8 Qeg6 Re8 h8Q Rb7 Nh3 g1B Nf2 g2 Ng4 Bg3 Qhh6 B1h2 Q6f6 g1Q Qhg6 Ka7 b6+ Ka6 Q6h6 Nd3 b5+ Ka5 Bb2 Bh4 Bd4 B2g3 Bf2 Qd6 Qhg6 Qd7 Qc1 d1R Nd2 Qd8 Rb1 a1Q Rb4 Qd6 Rd4 Qa2 Qe4 Qe6 Qe1 Qf7 Qf1 Qg6 Qg2 Re1 Qd1 Re6 Qc1 Rd6 Qd1 Rbd7 b7 Nb6 b8R Rc7 Rc8 Rb7 Qe2 Qga1 Rd5 Qd4 Qd1 Nc4 b6+ Ka6 Qe6 Ra7 b7 Nb6 b8Q Rc7 Nb3 Rb7 Nh6 g4+ Ke2 Be5 Qef6 g3 Ng4 Bf4 Kf3 Be5 Qgh1 g2 Qc1 Beg3 Qhd1 Rdd7 Qbe5 Rd6 Qeg5 g1N+ Kg2 Nh3 Kf3 Re6 Rdd8 Rd6 Qgd2 Nhf4 Q2e2 Ra7 Qef1 Rc7 Qg2 Rb7
1R2nR2/2bRQR1r/b2N3k/P3pn1n/Q3rr2/br2q3/4P2r/3QBNKR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 g6 f5 Qd7 Bh3 Qd6 fxg6 Qd7 g5 Qd8 Bg4 hxg4 Kf1 e5 d4 c5 a4 f5 h4 b5 d6 f4 d5 b3 a5 b4 h5 g3 h6 b2 h7 c4 g7 Kf7 d7 Kg6 d6 g2+ Kf2 b3 Rh3 f3 Rh5 c3 Qd2 c2 Rh3 Na6 Rh5 Nc7 Rh1 Nf6 Nh3 g1R Qd1 Nh5 Bd2 c1B Be1 Ne8 Nd2 b1R Nf1 b2 Ra4 Rb8 Rf4 Rb4 Rf7 Ba6 Qa4 Qc7 d8Q Rgg4 d7 Qc3 Qe7 Rge4 Kg1 Qe3+ Nf2 Rf4 d8Q Rbe4 Qd5 Ra1 Qd2 b1R Qdd1 Ba3 g8R+ Nhg7 Qed7 Bfd6 Rgf8 Nh5 Qa7 Rb3 Qe7 Nef6 Rb8 Ne8 Rd8 Bc7 Rd7 Rg8 h8R Rg7 Rg8 Kh7 g6+ Kh6 Rgf8 Rh7 g7 Rc1 g8R Rcc4 Bd2 Rh4 Be1 Rh2 Ng3 Rf4 Kf1 Rcb4 Nfe4 f2 Nd6 Rbe4 Rh8 Rh3 Kg2 f1N Rhg8 Rf2+ Kg1 Rhh2 Rh8 Rff4+ Bf2 Qd2 Be1 Ne3 Nf1 Nf5 Rhg8 Nef6 Rb8 Ne8 Rgf8 Qe3+
r7/prq1kbNR/2n2Rr1/1NR5/1Bn3nP/P1QR4/Q1n1nbbR/K2Q4 w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Na3 h4 Nb1 h3 Bg2 hxg2 Kd2 b5 Kc3 d5 Kb2 g5 e4 b4 f4 d4 h4 d3 c4 d2 e6 b3 f5 g3 e7 g4 c6 Qd7 a3 Bh6 c7 Na6 e5 Qd5 f6 Rh7 c5 Qc6 Ne2 g1N Nd4 g2 Nf5 g3 Nc3 Bb7 Nb5 Nf3 Rh2 g1N c8R+ Kf7 e8R g2 Ng7 Ne1 Ra2 Qc7 c6 Ne2 Ka1 g1R Rh3 Bf4 Rd3 Nh6 Rh8 Bg3 Rc2 Ng4 e6+ Kg6 e7 Kf7 e8R Bf2 Re6 Nb8 Bb2 Rg2 Bc3 Rg3 Bb4 b2+ Ka2 b1B+ Ka1 Ba2 Red6 Qd7 c7 Bg2 Rc5 Be6 Rcd8 Ba2 c8Q Qc7 Rde8 Nc6 Ref8+ Kg6 f7+ Be6 R6d5 Kf6 Rf5+ Ke7 Rf6 Ne3 Rfd8 Rg6 R8d6 Ng4 R6d5 Rh5 Rh7 Rhg5 Rh3 Rf5 Rdd3 Nc2+ Kb2 Bb3 Rh2 Rd5 Qh8 Rdd8 Kb1 Rdb8 Qc8 Rb7 Qg8 Bbd5 f8Q+ Kd7 Qb8 Ke7 Qbc8 Bf7 Kb2 Nce3 Ka1 Nc4 Qc2 d1N Qa2 Be8 Qd5 Nde3 Qd4 Bf7 Qcd7+ Kf8 Q7d5 Ke7 Qc3 Nd6 Qdb3 Ndc4 Qd1 Nc2+
B2kNbbN/2R1b1R1/3b3N/4p3/qQ2P1N1/Q1q5/1nNP1b1r/QKr1r1n1 w - - 0 1 illegal: No possible last move, all moves rejected
Rb1N1q2/N6N/1Qp1qn1Q/2Pr1PNq/3K3n/n4N1r/B6B/nbk1nQ2 w - - 0 1 legal: proof: d4 b5 b4 e5 dxe5 h5 a4 f5 axb5 f4 g4 hxg4 Ra3 Ba6 Rc3 Bc8 Rg3 fxg3 Kd2 Ke7 Kc3 Ke6 h4 Kf5 f4 Ke4 h5 g5 b6 a5 b7 d5 e6 g2 h6 g3 b5 d4+ Kc4 g4 h7 c6 b6 a4 e7 d3 e8N a3 Nh3 g1N Nc7 g2 Nd2+ Ke3 Ng5 a2 Nb5 a1N Ndf3+ d2 Na7 Nd7 b8Q g3 b7 Ngf6 Qd6 Nb6+ Kc5 Qd7 b8Q Nc4 Qb6 Na3 c4 Qe6 f5 Ba6 Bb2 Re8 Be5 Bg7 Qe1 d1Q Rh6 Bb5 Rg6 Bh6 Rg8 Ba4 Qf8 Bc2 Qg7 Re7 Ra8 Bb1 Qg6 Bg7 Qh6 Qd8 Bb8 Qf8 Qd1 Ne8 Bc7 Be5 Bd6 Nf6 Bc7 Kf2 e4 Ke3 Be2 Bf4 e5 Re8+ Bd6 Re7 Qf1 Re8 Nh4 Kd2 Kd4 Kc2 Bd1+ Kc1 c5 Re7 Nhf3 Re8 Ne1 Re7 Bb3 Nf3+ Kc3 g1N Ba2 Nh4 Kd4 g2 Bb8 Qef7 e6 Qh5 Bc7 Re8 e7 Bd6 Bd8 Bb8 Bc7 Rd8+ Bd6 Re8 Bh2 Ngf3+ Kc3 Rg8 h8N g1Q Nhf7 Rh8 Nd8 Qgg4 Qa5 Qe4 Qb6 Ne5 Nef3+ Qe1+ Kd4 Nd3 Qh3 Qe6 Qf1+ Ne1 Nb7 Rc8 e8N Rc7 Nd8 Re7 Bg1 Qb3 Bh2 Re5 Nd6 Qe6 Nde4 Rg8 Nh7+ Rg5 Ned2 Rg3 Nfg5 Rh3 Ndf3 Rd5+
4r1Br/5Q2/bB2Bpn1/B1bqPrrk/2R2P1b/RQB5/1K1Qn3/r3N2q w - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 Kd2 h5 Kc2 c5 g4 a5 e4 f6 b4 Kf7 e5 Kg6 b6 d3+ Kc3 d2 b5 c4 d7 a4 d6 h3 b7 h2 g5 h4 b6 h3 Bb2 a3 Nf3 a2 Ne1 Nc6 b8Q Nge7 b7 Nd4 Qc7 Ne2+ Kc2 c3 b8Q Ba6 f4 Kh5 Qb3 Ng6 Qc1 d1R Qd2 Bh6 Qa7 Qg8 d8B Qd5 Ba5 Rae8 d7 Rb1 Rg1 h1Q d8B h2 Qf7 Rd1 Rc1 a1R Rg3 Bf8 Bdc7 Bc5 Bh3 Bf2 Rf3 Bg3 Be6 Bh4 Qd4 Rd3 Bcb6 Re3 Rh3 Rg3 Qd2 Rg1 Qc4 Rg4 Kb3 c2 Bbc3 Rg1 Kb2 Rg4 Rd3 Rg1 Qb3 Rg3 Rd4 Rg2 Rc4 Rg1 Rb1 c1B+ Kc2 Rg2 Rb2 Rg3 Ra2 Rg4 Ra3 Rg1 Qd4 Be3 Qd2 Bc5 Kb2 Qhe4 Qdc2 h1R Qc1 Rh3 Qd2 Qh1 Qe7 Nf8 g6 Rg5 g7 Ng6 g8B Rhg3 Qa7 Rf5 Qf7 Rgg5
BB3b1K/b6r/NB2Nq1N/np2bn1b/r2R1nP1/1P2N3/3bNQ1Q/1k3q2 w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 hxg5 a5 Qf3 a4 Qd1 a3 b3 Nh6 Nc3 Nc6 Rb1 Ng8 Rb2 axb2 a4 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 b1N f4 e5+ Ke3 Kc5 d4+ Kb4 g6 c5 a5 b5 a6 h5 f5 c4 a7 h4 g7 h3 f6 h2 f7 Bg4 d6 Bh5 g4 Nc6 d5 Qf6 d7 Na5 d8B Nh6 g8N Rh7 Qe2 Rg7 Nd1 c3 d6 c2 d7 Nc3 Qg2 Ne2 Bb6 Nf4 d8N Rg5 Bd2+ Ka3 Ne2 Ka2 Ne6 c1B Qh3 Bca3 Bg2 Kb1 Qg3 Bfd6 f8Q Rg7 Rf1 h1Q Qh2 Bb2 Be1 Bb4 Bg3 Be7 Qf7 Bf8 Re1 Qf1 Bh1 Rc8 a8N Rc4 Nac7 Ra4 Na6 Bd4+ Kd2 Bdc5 Kc3 e3 Ba8 Nf5 Nh6 e4+ N2d4 e2 Ne3+ Ka2 Rd1 Bcd6 Rd2+ Kb1 Rd3 e1B+ Rd2 Qg6 Ne2 Bf2 Rd4 Bb8 Qf6 Bg1 Qfh4 Qf6 Qf2 Ba7 Qh1 Bh2 Qhg1 Nh3 Bb8 Be5 Qgh2 Bg3 Nc4 e3 Kd3 Nf4+ Ke4 Qg5 Ke5 Qd8 Nc1 e2 Ne3 e1B Ne2 Qd6+ Kf6 Bb4 Nc5 Bd2 Na6 Rg6+ Kf7 Qd8 Ng7 Qf6+ Kg8 Rg5 Kh7 Rg6 Ne6 Rg7+ Kh8 Nd3 Nac5 Be5 Na6 Nf4 Rd8 Nh4 Rd5 Nf5 Rd4 Rh7+
1R1r4/2pN4/8/rQn1qnnQ/1PPr1k2/NQ2q1R1/1R1bQKn1/1b1Qn2B w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 h4 Ke7 f4 Ke6 e4 d5 c4 a5 b4 g5 h5 g2 h6 d4 b6 g3 h7 g4 b7 a4 Rh6+ Qf6 Qc2 a3 Rh1 a2 Nd2 d3 Nb1 Ra5 Rh2 Nd7 b8R Bh6 Qb3 Nc5 Na3 Ne7 Nf3 g1R Rb2 g2 Kf2 Rd8 h8Q d2 Qh7 Bg5 Qh5 Nf5 Rc1 a1N Rc3 Nc2 Be2 Kd7 e6+ Kd6 e7 Ne1 e8Q Qe5 Qb5 Rh1 Bf1 g1N Bg2 Rh4 Bh1 Be6 Qd1 Bg8 Re3 Bh7 Qb3 d1Q Rc3 Qd3 Qd1 Ng2 Qb3 Ng3 f5 Bd2 f6 Nf5 f7 Ke6 f8Q Qe3+ Kf1 g3 Qd1 Qd5 Ne5 Nh3 Nd7 Ng5 e5 Rd4 Qb3 Nh6 Qe7+ Kf5 e6 Kf4 Qd6+ Qde5 e7 Bb1 e8Q Nf5 Rd3 Na6 Qe2 Nc5 Q8h5 Bc1 Qdc6 Qf3+ Qf2 Nge3+ Ke1 g2 Qfc2 g1N Qd1 Qh3 Qcb7 Ng2+ Kf2 N1f3 Q7c6 Nfe1 Qe6 Qf6 Re3 Bd2 Rc3 Qd3 Qee2 Qe4 Rd3 Qfe5 Rg3 Qe3+
r5QR/4Brp1/bRQ1r2Q/7K/1Bnr2r1/bQrPNnP1/2r5/kBq2Q2 w - - 0 1 legal: proof: a4 d5 c4 e5 Nc3 b5 axb5 h5 cxd5 h4 f4 exf4 Ne4 Bb4 Ng3 Bc5 Nf5 Bf8 g3 h3 Ne3 Rh7 Ng2 hxg2 Qc2 Rh4 Qd1 Rh8 Kf2 Kd7 Kf3 Kd6 h4 Kc5 b4+ Kd4 e4 f5 h5 c5 h6 a5 h7 c4 b6 c3 b5 a4 d3 a3 e5 a2 d6 c2 b7 Kc3 b6 Qc7 d7 Ne7 d8B Ng6 e6 Nc6 b8Q Ba6 b7 Nd4+ Kf2 f3 e7 f4 e8Q Ne5 Be7 Nc4 Rb1 a1R Rb6 Ra3 Nh3 g1R Be2 Re1 Qc6 Qc8 Be3 c1R Rh2 Rb3 Bd2+ Kb2 Bdb4 Rbc3 Qbd6 Qc7 b8Q Ka1 Qh6 Qc8 Qb3 R1c2 Qhf6 Rg8 h8Q Qc7 Qhh4 Rh8 Qhg5 Rh4 Qgh6 Rg4 Qbe8 Qc8 Qef7 Qc7 Qg8 Qc8 Ng5 Qc7 Ne4 Qc8 Nd2 Qc7 Bd1 Re6 Kg1 f2+ Kg2 f1R Kh3 f3 Qff4 Rfe1 Nf1 f2 Ne3 f1R Qf2 Nf3 Qg2 Rff2 Qf1 Ree4 Rh1 Rd4 Rh2 Ra2 Bc2 Qf4 Bb1 Rac2 Nd1 Re6 Rh1 Qc1 Ne3 Ra2 Rh2 Rfc2 Rh1 Ra4 Rh2 Rgf4 Rh1 Rf7 Rh2 Rdd6 Kg4 Rd4+ Kh5 Rg4 Bf6 Bc5 Be7 Bd6 Ba5 Ba3 Bab4 Rd4 Ba5 Nb2 Qf4 Rff6 Kg4 Rdd6 Rh8 Rf7 Kh5 Rdd8 Qg5 Rg4 Qh6 Rdd4 Bab4 Nc4
q2n1B2/p2RQN2/1qQq2rn/PR2Qb2/r2q1K1b/n7/1N1P4/1kN1NNb1 w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g6 f5 Qd5 Be2 Qd6 fxg6 Qd5 g5 Qd8 Bg4 hxg4 Ke2 Kd7 Ke3 Ke6 h4 Kf5 c4 e5 a4 b5 g7 g3 a5 b4 g6 g2 h5 b3 c6 b2 c5 Bb7 c7 Nh6 c8N Be7 g8Q Qb6 g7 Nc6 Rh4 Nd8 Na3 b1N Nc2 Na3 Qe1 Bf6 Rh3 Bh4 Qe8 Rb8 Qf8 Rg8 Rb1 Qd6 c6 f6 Ke2 e3 Kf3 e2 Nb6 e4+ Ke3 Ke5 c7 f5 c8Q Ba8 Na4 Rb4 Nb2 Ra4 Qc3+ Kd5 Qg3 e1Q+ Ne2 Qh1 Ne1 Qb6+ Kf4 g1B Qe7 e3+ Nd4 e2 Qh2 Rf8 g8N Rf6 Rd3 Rg6 Qc2 Nhf7 h6 Bc6 h7 Nh6 Nf3 e1Q h8N Qe6 Ne1 Qf6 Nf7 Qd6+ Ne5 Ba8 Qcc7 Bc6 Nf6+ Kc5 Qb7 Kb4 Ne2 Be4 Nh5 Qg2 Rd5 Kb3 Nhg3 Ka2 Qc6 Qd4 Nf1 Qb6 Nc4 Qh1 Rb3 Ka1 Bb2+ Kb1 Nc1 Qg2 Rbb5 Qgf2+ Nf3 Qfd4 Ne1 Rb4 Qcc7 Qe6 Rd7 Bd3+ Kf3 f4 Nc2 Ra4 Ne1 Qed6 Ng3 Q4c5 Nf7 Qb4 Bh8 Qdd4 Nb2 Qb4d6 Bg7 Bc2 Kg2 f3+ Kh3 f2 Bf8 Q6d5 Qg2 Qa8 Qgc6 Be4 Qf4 Qd6 Qf5 Qbc5 Qfe5 f1Q+ Ng2 Qe2 Nf1 Qec4 Ne1 Q4d4 Qh5 Bgf2 Qhe5 Qb6 Kh2 Bg1+ Kh3 Bg5 Kg3 Bh4+ Kf4 Bf5+
1kbq4/3PqnN1/pBRb1b2/Rb3KRR/P2R4/rBqB2n1/6r1/Q1Qr4 w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g6 f5 Rh6 Na3 Rh7 Nc4 Rh8 Ne5 Bg7 fxg6 Bh6 g5 Bf8 Ng4 hxg4 Kf2 Kd7 Kg3 Kc7 Kf4 b5 d4 f5 c4 b4 h4 e6 h5 b3 h6 b2 h7 b1R g7 e3 g6 g3 c6 e2 d5 e1Q c5 a6 Be3 g2 Nh3 g1B Qc1 Nf6 g8R Nbd7 d6+ Kb8 g7 Ne4 Bd3 Qc3 Ng5 Ng3 Rh5 Ne5 d7 Nf7 a4 Rb3 Ra2 Ra3 Rd2 Bh2 Bf2 Be7 c7+ Kb7 Be3 Bf6 Bd4 Rb8 c6+ Ka8 Bb6 e5+ Ke3 e4 Kf4 e3 Ne6 e2 Qa1 Bb7 c8Q e1Q c7 Qe2 Rg5 Qe1 Re8 Rg8 h8R Qe2 Rhh5 Qe1 Nd4 Qe6 Re7 Qd6+ Re5 Q6e7 Ba5 Ka7 Ne6 Ka8 Rd5 Ka7 Bb6+ Ka8 Kf3 f4 Kg4 f3 Ra5 f2 Kf4 f1B Rd1 Rh8 g8B Rh6 Ng7 Rg6 Bb1 Bb5 Rd4 Ne2+ Kf5 Bd6 Rg1 Rg2 Bd3 Ne5 Bb3 Nf7 Qc1 Qde8 Qd8 Bc8 Qa1 Q8f8 Qe8 Qd8 Qe3 Qfe7 Qf4 Rf2 Rgg5 Rg2 Bc5 Rb6 Qfc1 Rc6 Bb6 Rc4 Ba2 Rb4 Bac4 Rb1 Bb3 Ng3+ Kg6 Qe3 Qcb2 Rd1 Qbc1 Bb7 c8R+ Bb8 Qab1 Qee7 Rc6 Bc8 Qbb2 Bd6 Qba1 Ne2 Kf5 Kb7 Rg3 Kb8 Rgg5 Ng3+
1rBQq1Q1/5Np1/BQr3Q1/1nbn1Qb1/P2B1qP1/1nN2k2/bK3rr1/7R w - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 e5 cxd5 h5 f4 h4 fxe5 Bf5 Ra3 Bc8 Rg3 hxg3 e4 Kd7 h4 b5 d4 f5 Kd2 c5 Kc2 f4 e6+ Kd6 e7 b3+ Kb2 b4 e8Q g2 h5 c4 h6 f3 h7 f2 Nc3 Nd7 Rh6+ Ngf6 Rg6 Rb8 Na2 Nc5 Rh6 Be6 Qg6 Qe8 Nf3 g1R Ne5 Rg2 Qc2 Be7 Rh5 Rf8 h8Q Rc8 Rh4 Rc6 Rh1 Rf7 Bd3 f1Q Qg8 Qf4 Be3 Rf8 Nc3 Bf7 Kb1 b2 Ka2 b1N Kb2 b3 Be2 Kc7 d6+ Kb6 d7 Nd5 Bg1 Na3 d8Q+ Kb7 Qdd6 Nb5 Bf1 Be6 Nf7 Bg5 e5 Be7 Kb1 b2 Qcf5 Nb3 Qd8 Bc5 Qb6+ Ka8 Ka2 b1R+ Be2 Rf1 Be3 Rff2 Kb2 Bc8 e6 Bd7 e7 Be6 Qa5+ Kb7 Qb4 Qd7 Qa5 Rb8 e8B Qe7 Bd7 Qe8 Qa6+ Kc7 Nd8 Kd6 Bc8 Nf6 d5 Bf7 Qd7+ Ke5 d6 Nd5 Qb6 Be6 Bd2 Bf7 Qdf5+ Kd4 Be1 Ke3 d7 Be6 Nb7 Bf7 d8Q Be6 Nd6 Bf7 Qc2 Be6 Bf1 Kf3 Bd2 Bf7 Be3 Be6 Bd4 Bf7 Ne2 Be6 Qcf5 c3+ Ka2 c2 Nc3 c1B+ Kb1 Na7 Bfa6 Bd2 Kb2 Nb5 Qe5 Bf5 Nf7 Bb1 Qef5 Ba2 Qb1 Qc7 Qbc2 Bg5 Qf5+ Qf4 Qg6 Nd2 Qcf5 Nb3+
Q1K4k/BBN3p1/2B2bn1/1B1B1q2/Pn2b1P1/1rR3Q1/1bRn1rq1/r1b3Q1 w - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 h5 bxa5 c5 dxc5 h4 Nc3 Rh6 Nce2 Rh8 Ng3 hxg3 Kd2 Kf7 Kc3 d5 Kb4 b5 a4 e5 f4 d4 h4 d3 c4 e3 a6 g2 a7 e4 h5 d2 h6 e2 f5 e1B h7 e3 f6 e2 Nh3 g1N Ng5+ Kg6 f7 Qb6 Rh2 Nf3 Ra3 Ba6 Ne6 Qc6 Ka5 b4 Rc3 b3 Nc7 Be7 f8Q b2 Qf4 b1Q Qg3 Bf6 Rf2 Qce4 c6 Bb7 c5 Ne7 Rh2 Qa2 Kb6 Rf8 h8Q Na6 Rg2 Rab8 a8B Bf2 Bb2 e1B Bb5 Be3 Ba1 B1f2 Qg1 d1R Ka7 Be1 Rgc2 Bc1 Bb2 Bf4 Bc1 Qf5 Be3 Bd2 Nd5 Ne1 c7 Qh5 c8B Ra1 c6 Re8 c7 Qf5 Be2 Nf3 Rc1 Bc6 Bf1 Rb3 Bb5 Nb4 Kb8 Rd8 Qe8+ Kh7 Ba7 Ng6 Qf8 Rd6 Bd7 Bde3 c8B Qg2 Nc7 Be4 Be6 Rd2 Bac6 Rf2 B8b7 Bh6 Bg8+ Kh8 R1c2 Bef4 Re3 Bb2 Rec3 Bhg5 Qe8 Bfc1 Bgd5+ Qf8 Kc8 Bh4 Kd7 Nd2 Qa8 Bd8 Kc8 Qff3 Qe1 Bf6 Qg1 Qf5+
1r1b2q1/3pQ3/n3Qbb1/k2Nq3/3Prn2/1K3Q2/PBN1QqnR/1RQnN3 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 cxb4 Bc4 a4 Bb3 axb3 f4 b5 c4 e5 h4 g5 c5 e4 h6 g4 h5 e3 h7 e2 h6 b2 c6 b3 f6 b4 f5 g3 d3 g2 Kd2 e1N c7 Ra4 Rh4 Ba6 c8N Bg7 Rh2 Ne7 Nh3 g1B Nf2 Ng6 Na3 b1Q Qh5 b2 Ne7 b3 Kc3 Re4 Nd5 Ng2 Qe2 N6f4 Nc2 Bc4 Kb4 Na6+ Ka3 Qb8 f7+ Kd8 f6 Qe5 d4 Bd3 Ka4 Kc8 f8Q+ Kb7 f7 Bf6 Qe7 Rb8 f8Q Kc6 Bd2 Qe1 h8Q b1N h7 b2 Bc1 Nc3+ Ka3 Kb5 Qhg8 b1Q h8Q Ka5 Qge6 Qd2 Bb2 Nd1 Qhh6 Qe3 Qg5 Qg3 Qgh6 Qg8 Qff7 Qc1 Rb1 Qe3 Qfh5 Qeg3 Qhf3 Qh4 Na1 Bc2 Nd3 Be3 Ne1 Bd3 Nac2 Qf2 Qhf8 Bd2 Qc8 Bb4+ Kb3 Bc5+ Qb7 Bb6 Qbc6 Bd8+ Ncb4 Re3 Qc1 Bh7+ Qd3 Re4 Qde2 Ra8 Nbc2 Bg6 Qee3 Rc8 Qee2 Rb8+
1BR1qN2/2nQ1nq1/3p1b2/1Qq2BB1/1Q2r3/2BP2Pr/bKb1kq2/1B2N2n w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 c4 Kf7 f4 Kf6 d3 a5 Kd2 e5 Kc2 h5 c5 b3+ Kc3 h3 b7 b2 c6 h4 b6 a4 c7 h2 g3 h3 Be2 e4 Na3 b1B Nf3 e3 Nc2 a3 Nh4 a2 Kb2 Na6 b8B Qe8 b7 Be7 Ne1 Bc2 Ng6 Nh6 Nf8 Nf7 Bf3 e2 Bd5 Rh7 Qd2 d6 Qb4 Be6 c8B Nc7 Bc4 Kg7 f6+ Kh6 f5+ Kh5 Bg5 Kg4 Rf1 h1Q Rg1 Nh6 f7 h2 f6 Qd5 Qb5 h1N Bb3 Bd1 Bc2 Ra4 Bb1 Re4 Rf1 Bb3 Rf5 Qc4 Rc5 Bc2 Rc6 Qc5 Bd7 Na6 Rc8 Nc7 Qb4 Kh3 Qb5 Kh2 Qb4 Kg1 Qb5 Bd5 Bf5 Kf1 Ne6 Nf2 f8B Nf7 Bg7 Rh3 Nf8 Nh1 Bh8 Ne5 f7 a1Q+ Kc1 Qaa7 Kb2 Ba2 Bg7 Ng6 Bc3 Nh8 Ng6 Bd8 f8Q Bf6 Qe7 Nf7 Qed7 Kf2 Nf8 Kf1 Ng2 e1Q Qb4 Qee3 Ne1 Qf2 Qda4 Ne6 Bc7 Ke2 b8Q Nfd8 Q8b6 Qb7 Bb8 Qg7 Qd7 Nf7 Q6b5 Nc7
4Rb2/Rb1qR1KR/1P3pB1/2kn2N1/rr3n2/3QnQ1b/R4P1r/n3Q1Bq w - - 0 1 illegal: No possible last move
3K4/Q1B1b1nr/NbBRP1bB/2Qn1p2/1nBR4/2n2k2/2R1bPr1/q1B2n2 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 Kd2 Kd7 Kd3 a5 Kc4 h5 Kc5 a4 b4 d3 e4 d2 g4 h3 e5 h4 b6 a3 g5 a2 g6 h2 g7 h3 b5 Na6+ Kc4 c5 b7 Nf6 b8Q Nb4 g8B Rh7 Ne2 Qa5 Qc2 d1B Nf4 Be2+ Nd3 Qa4 Rb1 a1B b6 Bd4 b7 Qa1 Kb5 c4 Qa7 c3 Rb2 Bb6 b8B+ Bb7 Rg1 h1N Bc7 h2 Bg2 Ng3 Rd1 h1N Bh6 Rb8 Qc1 Ba8 Rc2 Ngh5 Qe3 N1g3 Qc5 Nf1 Be4 Bf3 Bc1 Ng7 Rdd2 Na2 Nb4 Be2+ Rd3 Rb7 Na6 Nb4 Bh1 Bh5 Rd4 Bg6 Ra2 c2 Bh6 c1N Rc2 Ne2 Bc1 Na2 Be4 Ke8 Kc6 Nec3 Bh1 Rh2 Bh6 Rg2 Bc1 Be7 d7+ Kf8 d6 Nfd5 d8B f5 Kd7 Nab4 Kc8 Ke8 d7+ Kf8 Bh7 Kf7 Bh6 Bf8 Bdg5 Ke6 d8R Bh5 Bc1 Bg6 Bb8 Re7 Bc7 Bc6 Rd7 Bb5 Kd8 Be2 Rd6+ Kf7 e6+ Kf6 Bg8 Ke5 Bf7 Beh5 Be8 Be2 Bc6 Rf7 Rd3 Ke4 Rd4+ Kf3 Bb5 Ne8 Bd3 Rh7 Bc4 Ng7 Rh4 Nde3 Rh2 Kg4 Rd7 Rg3 Bc6 Ned5 Rd6 Rg2 Rh4+ Kf3 Rd4 Be7+
2QrBQ2/b3rbrk/5nR1/Rp3qPN/BRn5/1P1BBb2/4b3/K1B2r1n w - - 0 1 legal: proof: h4 d5 f4 e5 c4 exf4 cxd5 g5 hxg5 a5 b3 a4 Nc3 a3 Na4 Nf6 Nb2 axb2 Rh6 Ng8 Rh3 Bg4 Rh1 Bc8 e4 b1B g4 c5 a4 h5 d4 f5 Kd2 Kf7 Kc3 Kg7 Kb2 h4 a5 c4 g6 b6 a6 f3 d6 f4 e5 h3 d7 h2 a7 f2 e6 f3 g5 Nf6 d5 Rh7 e7 Nc6 e8B Bc5 d6 Na5 Bd3 f1R Nh3 f2 Qc2 Bb7 Nf4 Qc8 d8Q Qf5 d7 Bf3 Nh5+ Kg8 Ra2 c3+ Ka1 Nc4 Ra5 Re7 g7 Kh7 g8R Rb8 Rg1 h1N a8B Rg7 Qe7 Rd8 Bc6 Re1 Qf7 f1B Qf8 Ree7 Ba4 b5 Rg4 Ba7 Rf4 B1e2 Rd4 Rb8 d8B Ra8 Bb6 Rd8 Qb2 c2 Qc3 Nb2 Rb4 Nc4 Bb2 c1R Be3 Rf1 Bbc1 Rgf7 Rg6 Rg7 Qd4 Bc2 Qc5 Bcd1 Qc7 Bd5 Qc8 Bf7 Bb6 Bf3 Bbe3 Bde2
1n1Q2r1/p1N2Q2/nQ1B3Q/P4Qn1/1KN1bb2/n2rNk2/Pb3r2/1rRq1B2 w - - 0 1 illegal: No proof kernel
B2QR2R/2B1R3/Q5rp/rBr5/P3rb1b/2bR3q/R4nkP/n1KN1n1b w - - 0 1 legal: proof: e4 a5 c4 f5 f4 g5 b4 d5 cxd5 axb4 Nc3 Kf7 Nce2 Ra3 exf5 Ke8 f6 Ra6 f5 Ra8 Nf4 gxf4 a4 Kd7 g4 Kd6 d4 b5 Kd2 c5 g5 e5 f7 h6 g6 b3 g7 b2 f6 b1R Qg4 f3 Qh4 e4 Ne2 e3+ Kc2 c4 Nf4 f2 Nh5 c3 Bg2 f1N Bd2 b4 Be4 b3+ Kd3 e2 Qe1 b2 Kc2 Ra5 Ra2 Na6 Ng3 Be7 f8R Qd7 f7 Bh4 Re8 Nf6 f8R Bb7 g8B Ng4 Qf2 e1B Ne2 Qe6 Qf6 Nc5 Bf7 Rh7 Rh8 Nf2 Bh5 Re7 Bf4+ Kd7 d6 Nb3 d5 Qh3 Bd3 Re4 Bf3 Ra1 Qg6 b1R Bb5+ Bc6 Rg1 Rd1 Rg3 Rdd4 Bg2 Rc4 Re3 Rc5 Bh1 Rd1 Qf6 Rd3 Bf3 Na1+ Kc1 c2 Nc3 Rdd4 Nd1 Bc3 Be5 Rg4 Rd3 Rde4 Bh1 Rg8 Re7+ Kc8 d7+ Kb7 d6 Rg6 d8R+ Kb6 Rdf8 Bb7 Ba6 Kc6 Rfe8 Ba8 Rf3 Kd5 d7 Bc6 Bb5 Ba8 Bc7 Bb7 Qa6 Kd4 Rf5 Bc6 Nb2 Ke3 d8Q Ba8 Rg5 Bc6 Rg2 Kf3 Nd1 Be1 Kb2 c1B+ Kb1 Bf4 Ra3+ Ne3 Rd3 Bc3 Kc1 Ke2 Rg3 Kf1 Bg2+ Kg1 Rd2 Nf1 Rd3 Bb7 Bf3 Rd4 Bfc6 Re4 Bd5 Kg2 Bdc6 Bc8 Ba8 Bb7 Qd7 Kh1 Rhh7 Re2 Rhh8 Kg1 Qd4 Bh1 Qd8 Re3 Ra2 Re4+ Kb1 Bd6 Kc1 Kg2 Rhh7 Bdg3 Rhh8 Bf4+
1BbB3r/2r2n1p/qQ4np/1NPQ1B1P/1kb2R1n/bB2r1B1/2R2Q2/1q1K4 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Nc6 Na3 Qc7 Nc4 Qb6 Ne3 Qd8 Ng4 Nb8 Nh6 gxh6 c4 a5 f4 e5 b4 Ke7 g4 Kd6 h4 a4 f6 a3 f7 d3 b6 a2 b7 e4 h5 e3 c5+ Kc6 g5 Kb5 f5 d5 g6 e2 g7 d4 f6 Qd7 Bg5 Qc6 Rc1 a1Q Nf3 Qb1 Rh4 Ra7 Bh3 Nd7 Rc2 Ne7 g8B Bg7 f8B Ne5 f7 N7g6 Bd8 Qa6 b8Q+ Rb7 Kd2 e1N Bd6 Ng2 f8Q Ka4 b5 Kb4 b6 Rc7 Re4 N2h4 b7 Bf6 Bb3 Bg5+ Ke1 Bc1 Qf6 Nf7 Bg3 Bb2 Qa7 Ba3 b8B d2+ Kf2 Qc6 Ke2 Qb7 Qh1 d1B+ Kd2 Be2 Qab6+ Bb5 Qf4 Qa6 Bf5 Be6 Qg2 Bc4 Qh1 d3 Nd4 Be6 Qf2 Bc8 Qa7 Bc4 Nb5 Nd6 Rf4 Nf7 Ke3 d2 Qb6 d1R Qd5 Rd3+ Ke2 Re3+ Kd2 Bc1+ Kd1 Ba3+
k1rB4/Bq1pn1r1/2r1b3/qQ2N1p1/2QPK1PR/Q7/nN2q1Qb/4N1bQ w - - 0 2 legal: proof: e4 c5 b4 f5 exf5 h5 a4 b5 g3 h4 Bg2 h3 Ra2 hxg2 Rb2 Nf6 axb5 Na6 b6 Nb8 b5 Ng8 Rb4 cxb4 Ke2 e5 Ke3 a5 c4 e4 f4 b3 d4 a4 h4 b2 c5 a3 g4 a2 b7 a1B b6 g6 f6 Na6 b8B Ne7 f5 Nb4 h5 Ra5 b7 Na6 c6 Rg8 c7 Rg7 h6 Nb4 h7 Ra6 h8N Rc6 Nd2 b1Q Nc4 Bc3 Nf3 g1R Ne1 Na2 Nb2 g5 Rh4 Rg2 Ng6 Rc2 Bd2 Bb4 Qf3 Bd6 Qg2 Bh2 Ba5 Rc1 Ba7 Bg1+ Qf2 R1c4 b8Q Ba6 c8Q Rc1 Qe5 Bc4 Qb5 Be6 Ne5 R1c2 Qa8 Rc8 Qad5 R2c6 Qdc4 Qb6 f7+ Kd8 f6 Kc7 Rh8 Kb7 Rh4 Bh2 Qfc2 Ka8 Qg2 Qc5 Bd8 Bg1+ Ke2 e3 Kf3 e2 Qh1 Qd1 Ke4 Qb6 Qg2 Qb7 Qh1 Rg8 Qg2 Bg7 f8Q Qa4 f7 Qa5 Qe8 Bf6 f8Q Rg7 N5d3 Be5 Qh5 Beh2 Ne5 Nd5 Qa3 Ne7 Qh8 Be3 N1f3 e1Q Qh5 Qe2 Ne1 Qac7 Qf7 Qcb6 Qff1 Qa5 Qfh1 Beg1+
Q2Q4/Nqqq1nn1/Q4p2/4rB2/KBN1p3/2RPP1Nb/NN1b3r/4nbk1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 g4 Na6 c4 Nb8 cxd5 h6 f4 gxf4 g5 h5 Ra3 Kd7 Rg3 Ke8 Rg4 hxg4 h4 Kd7 e3 Kd6 h5 Ke5 b6 Ke4 g6 e5 b7 c5 d6 a5 d7 c4 h6 a4 d3+ Kf5 Kd2 f6 Kc3 f3 b5 a3 b6 a2 h7 a1N g7 g3 Qa4 Kg4 Ba3 g2 Bb4 Kg3 Na3 Kf2 Ne2 g1Q Ng3 e4 Bh3 Qb1 Qa6 Ne7 g8Q Nbc6 b8N Ne5 b7 Nf7 Bf5 Nc2 Nc6 Ne1 b8N Kg2 Na7 f2 Rh5 f1B Nbc6 Kg1 Ne5 Qc7 d8N Qd7 Ndc6 Rb8 Rh2 Rb5 Rc2 Rd5 Bd6 Qb8 Nb4 Qbb7 Na2 Ra5 Bb4 Rd5 Kb2 c3+ Kb3 Rc5 Rb2 c2 Nec4 c1Q Rc2 Ra5 Nb2 Re5 Rc6 Qc5 Rc7 Qcd6 Rc3 Q6c7 Bh3 Nf5 Nac4 Bc5 Qd8 Ng7 Bf5 Bb6 Ka3 Ba5 Kb3 Rg8 h8Q Rge8 Qh7 Rh8 Qhg8 Rh2 Ka3 Qdd5 Ka4 Qd4 Bh7 Bch3 Bf5 Qdd7+ Qc6 Qd5 Qa8 Nc2 Bd6 Nd4 Qgd8 Nf3 Ra3 Bc3 Qa6 Ne1 Bb4 Bd2 Rc3 Qdd7+
4RrK1/1qnpQ1b1/BB1P1R2/1P1nn3/1B5N/1BqB1Q1b/2pRr3/r1k4q w - - 0 1 legal: proof: e4 g5 b4 f5 exf5 b5 c4 g4 Na3 g3 hxg3 a6 g4 bxc4 g5 a5 b5 Nh6 Nc2 Ng8 Nb4 axb4 Ke2 Kf7 Ke3 c5 Kf4 h5 Ke5 c3 f4 h4 a4 b3 d4 c2 g4 b2 d5 b1Q f6 Kg6 a5 h3 f7 c4 a6 c3 a7 e6 Qf3 h2 Be3 c1N Bb6 c2 Ra6 Rh7 Be2 Bh6 f8B Rf7 Bb4 Qf6+ Kd6 Qc3 f5+ Kh7 f6 Kg6 Bf1 e5 Bc4 e4 Bd3 Rg7 f7 Bb7 f8Q Ne7 Qd8 Rf7 Qe8 Bg7 Qf8 Kh7 g6+ Kh6 Qd8 Kg5 Qf8 Bd4 g7 e3 g8R+ Bg7 Qd8 e2 Re8 Kh4 g5 e1R g6 Kg5 B6a5 Re2 Bb6 Bh6 g7 Qa2 g8B Bg7 Qh5+ Kf4 Nf3 Qab3 Rg1 h1Q Rg2 Qbc4 Qh3 Qc8 Nh4 Bc6 Rh2 Qb7 Rg2 Re4 Rd2 Re2 Bc4 Nd3 Qf3+ Kg5 Bh7 Ne5 Bf5 Qh2 Bfd3 Qh1 Ra5 Na6 Bb3 Nc7 Ra6 Rb8 a8B Rc8 Qh3 Kf4 Qg2 Qa7 Bb7 Ra8 Bc8 Qb7 Qh3 Ng8 Qe7 Nf6 Ra1 Ra2 Rg1 Ra4 Rg6 Ra1 Qg2 Qa7 Ba6 Qb7 B6a5 Ke3 Qg4 Kf2 Bb6+ Ke1 Qf3 Rg2 Re2+ Kd1 Rd2+ Kc1 Rh6 Re2 Rg6 Nfg4 Rf6 Ne3 Rg6 Rf5 Rf6 Rf4 Qf8 Rf5 Ke7 Rf4 d6 Be4 Ng2 Bf5 Nh4 Bh3 Qf7 N5c4 Qe6 Ned5+ Kf7 Ne5+ Kg8 Rf5 Qe7 Rf4 Re6 Rf7 Rf6 Rf8+
BqQb2NN/2rn3B/N6Q/3Pb1nK/p1pr1N2/1bP1r3/5B1k/3nNqR1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 g5 fxg5 h5 g4 Nd7 g6 Nb8 b4 Be6 g5 Bd7 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 h4 Ke6 d4 Kf5 b6 a5 b7 e5 b5 c5 g7 a4 g6 e3 h5 Kf4 b6 Kg3 c3 f5 h6 e4 h7 f4 Nf3 Ne7 g8Q Nd5 g7 Be7 Qe8 Nd7 b8N Ra7 g8B Rc7 b7 c4 Ng1 f3+ Ke1 f2+ Ke2 Bd6 Nh3 Be5 Rg1+ Kh2 Na3 g3 Na6 g2 b8N Bb7 Nc6 Qb8 Qc8 Ba8 Bf7 Rd8 h8N Bb7 Ne7 Bc6 Qe1 Ba8 Kd1 e2+ Kd2 Bb7 Bg6 Ne3 Nc2 Nd1 Nf4 Bc6 Ng8 Ba8 Ba3 e3+ Kc1 Bc6 Qd2 e1N Bc5 e2 Bh7 Nf3 Ne1 Be4 Qe3 Ng5 Kd2 Bc2 Ba7 Bg7 Qe6 Bb3 Qb6 Nb2 Ke3 Be5 Qg6 Ne6 Kf3 Ng5+ Kg4 Nd1 Ned3 e1R Kh5 Re4 Ne1 Re3 Be2 f1Q Bf3 Qd3 Qh6 Qe2 Rf1 g1B Bc5 Bf2 Rg1 Qf1 Ba8 Bh4 d5 Rf8 Nfg2 Rf2 Nf4 Rd2 Ba3 Rd4 Bc1 Rg3 Be3 Rf3 Bf2 Re3 Qe8 Ne4 Qc8 Bd8 Qf6 Ng5 Qf8 Ne4 Qh6 Ng5
1Qbn2b1/n2QnN2/RN2R2q/1rk3N1/p3Q1rq/P1p4q/N1P5/1KN1bB2 w - - 0 2 legal: proof: e4 c5 h4 f5 exf5 g5 b4 gxh4 Ba3 d6 bxc5 Kd7 c6+ Ke8 Bc5 dxc5 d4 e5 Kd2 Ke7 Kc1 Kd6 f4 b5 g4 a5 a3 h5 d5 e4 c7 e3 f6 c4 f5 b4 f7 e2 g5 e1Q g6 h3 f6 a4 g7 h2 Be2 b3 Bf1 h4 Nc3 h3 Na2 b2+ Kb1 Qd7 Ne2 Nc6 Nec1 Ra5 Qd4 Rh4 Qe4 Kc5 d6 Nge7 g8Q Rg4 Qgh7 Qh4 Rg1 Bg7 f8N h1Q f7 h2 Qhf5+ Be5 Nh7 Nd8 f8Q Qc6 d7 Qch6 Q5f7 Bc3 Ng5 Be1 Rg2 Qh3 Rf2 Q3h4 Rf6 Qf3 Ra6 h1B Qfh7 Qfh3 Qff4 Nec6 Qg3 Na7 Qb3 Bf3 Qb8 Bg2 Qeg6 Bd5 Qe4 Nb7 d8N Bg8 Ndf7 Nd8 Nb4 Be6 c8N Bd7 Nb6 Bc8 Ka2 b1N Kb2 Nc3 Nba2 Nd5 Kb1 c3 Qhf5 Qd6 Qd7 Qdh6 Qe3+ Rd4 Ne2 Qf8 Kc1 Bf2 Rb1 Bg3 Rb4 Ne7 Kb1 Qg7 Nec1 Be1 Qd3 Rf4 Re4 Rg4 Re6 Qgh6 Qe4 Rb5+
1bBq3R/N1N2Kp1/r5rp/1q5k/q1N2nrP/3Q1nBN/B4P2/1b1N1Qn1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 d4 fxg4 b4 e5 d6 Be7 d5 Bf8 Ra2 Be7 Rd2 Bf8 Rd4 exd4 Kd2 Kf7 Kd3 Kg6 Kc4 c5 e4 a5 e5 a4 e6 a3 b6 a2 d7 a1R d6 d3 Kd5 g3 b5 d2 b7 g2 b6 c4 e7 c3 Ke6 c2 e8B+ Kg5 Nc3 Rb1 Ba6 Ne7 Bf7 Rb2 Nh3+ Kh4 Qf1 g1N Nd1 Nbc6 b8N Rb3 b7 Ne5 Nc6 Rb6 b8N Nef3 Na5 Ng6 Nbc6 Kh5 Na7 Bb7 Nc4 Be4 Bb2 c1Q Bc8 Qb1 Be5 Qb5 Bg3 Bb1 Bg8 Nf4+ Kf7 Qdg5 d8N h6 d7 Rg6 Ne6 Bd6 d8Q Bb8 Qdd3 Qd8 Nc7 Rg4 Bh7 Re8 Bg8 Re4 Qg2 Nge2 Re1 Neg1 Qgf1 Re6 Re3 Reg6 Re8 Qb7 Ng5 Qb5 h4 Rd6 Nh3 Rdg6 Nc6 Ra6 Na7 Qb3 Bh7 Qb5 Rh8 Rgc6 Be4 Re6 Bd5 Reg6 Ndb2 d1Q Bde6 Qc2 Nd1 Qcb3 Ncb2 Q3a4 Ba2 R4g5 Nc4 Rg4
rq4BQ/N1KN4/2Q2n2/2Q1B1p1/1b2N3/2Qqr1PQ/2P1k1pn/nR1brq2 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 b4 h5 g3 h4 f3 h3 Ra6 Qc7 Re6 Qb6 Re2 Qd8 Rg2 hxg2 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 h4 g5 b6 a4 b5 d3 b7 a3 h5 d6 b6 d2 f4 e4 h6 e3 h7 e2 Nh3 e1N Qf3 a2 Na3 a1R Bc4 Bg7 Nb5 R8a3 Na7 Nc6 b8N Re3 b7 Nd4 Bb2 d1Q Nf2 Bf8 Bc3 Qd3 Ne4+ Kf7 f6 Kg6 f7 Kf5 Rg1 Nb3+ Kc6 d5 Nd7 d4 b8Q Bb4 f8Q+ Nf6 Qb6 Rc1 Qa6 Na1 Qh6 Qf1 Bg8 d3 Rh1 d2 Be5 d1Q Qd3 Qf8 Qc3 Qdd3 Kc7 Rb1 Qfh5 Nf3 Qe8 Kg4 f5 Nh2 Qh3+ Kf3 Qe6 Qc5+ Qc6 Qf8 Rg1 Rbe1 Rh1 Nh5 f6 Ke2 f7 Nf6 Rg1 Qe8 f8Q Ba6 Qfc5 Bc8 Nf8 Bg4 Nd7 Bf3 Bb3 Rf8 h8Q Bh5 Bg8 Bg4 Bd6 Qe5 Rh1 Ra8 Rg1 Qe8 Be5 Kf3 Bc4 Qf2 Ba2 R1e2 Rd1 Re1 Bb3 Qff1 Bg8 Qf8 Nd2+ Kf2 Rc1 Bd1 Ne4+ Ke2 Rb1 Qb8+
N2q3n/1qqpnbR1/3Pp2b/Q1R5/3Kr2k/B1RRP2n/2rN1N2/RQ5r w - - 0 2 legal: proof: b4 f5 g4 fxg4 a3 c5 Bh3 h5 bxc5 b5 a4 h4 Bg2 h3 axb5 hxg2 c4 Kf7 f4 Kg6 Kf2 Kh5 Ke3 g5 d4 a5 h4 a4 d5 g3 b6 e6 c6 a3 b7 a2 c7 g4 f5 Ra3+ Kd4 Be7 f6 Ra6 f7 Rc6 f8R Nh6 d6 Bg5 c5 Nf7 e3 Bh6 Nh3 g1N Nd2 g2 Qa4 g3 Nf2 Nh3 Rd1 g1R Rg8 g2 Rg7 Rh1 Ba3 g1Q Qb5 Qg2 Qa5 Na6 b8R Nb4 Rb5 Bb7 c8N Nd5 Nb6 Ne7 Na8 Ba6 Rb3 Bd3 Rc3 Rc8 c6+ Bf5 c7 Qb7 Rab1 a1Q Rbc1 Qab2 Ra1 Qc2 Rc5 Rh7 Rc3 Nh8 Rc5 Rb8 c8R Qc1 Rc3 Qc2 R8c5 Rc8 Rd3 Rc6 Rcc3 Rc5 Rdc1 Re5 Rc5 Qa4+ R1c4 Qc2 Rcc3 Bg6 Nfe4 Kg4 h5 Kh4 Nf2 Bg5 h6 Bf7 Rg6 Rg7 h7 Bh6 Rgg1 Rgg5 Rg3 Rgf5 Rg7 Rg5 Nde4 Rg2 Nd2 Nhg6 h8Q Rgh2 Qh7 Nh8 Nfe4 Re2 Nf2 Qc1 Nde4 Rc2 Qf5 Qcb2 Qg6 Qbc7 Nd2 Qb1 Qg1 Qbb7 Qb1 Re4+
2r5/pknq1NB1/2NbPQ1n/p1rR1q2/2QQ4/1b4R1/P1Qn3K/1Q1R1b1q w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 gxh5 Bf5 Bh3 Bd7 Bf5 Be6 Bd3 Bc8 Ba6 bxa6 Kf2 Kd7 Kg2 f5 h4 c5 e4 Kc7 d4 g5 b4 a5 h6 g4 e5 c4 h5 g3 d6+ Kc6 d7 c3 h7 c2 d5+ Kb7 e6 Qf6 d8Q Qf7 d6 Bd7 b5 Qe7 h6 Qf6 b6 Qb2 Qh4 Bc8 d7 Na6 d8R Qf6 Na3 Bd6 Nb5 Bd7 Bb2 c1Q Nd4 Qc8 Nh3 Ba4 Qc2 Nc7 Rad1 Qd7 Rhg1 Rc8 Nc6 Bb3 Ng5 f3+ Kh1 f2 Qhc4 f1N Nf7 Qg6 Bg7 f4 Kg2 Nd2 Kh3 g2 Kh2 Nb1 Rd5 Qf5 Rgd1 Ra8 R5d3 Rc8 Rg3 f3 Rd5 Nf6 Rd1 Re8 h8Q f2 h7 f1B Qf8 Re7 h8Q Nd2 Qhh4 Ng8 Qhd4 Re8 Qe7 Nh6 Qef6 Nb5 Nb8 Rc5 Nc6 Ka6 b7 Rf8 Qc4c3 Nc7 b8Q Rh8 Qbb4 Re8 Qbc4+ Kb7 Q3b2 Rf8 Qbb1 Rg8 Re8 Rf8 Re7 Rd8 Re8 Rc8 Rd8 Be7 Nce5 Qa4 Rd6 Qd7 Rd5 Bd6 Nc6 Bd3 Qg4 g1Q+ Kh3 Qe1 Kh2 Qee4 Qf4 Bf1 Qe3 Qef3 Qed4 Qh1+
b1qB2bK/1BrQ1pbR/2p4Q/rk1PQN2/1r1Q4/3n2n1/2P3q1/Q1B3qN w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 g4 Qd6 f4 Qd8 e4 h6 exd5 gxf4 g5 h5 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Kf2 Kd7 h4 a5 d4 e5 d6 c6 d5 a4 h5 g3+ Kf3 g2 Ke4 f3 Kf5 f2 b6 e4 h6 a3 g6 a2 b5 a1R g7 e3 b7 e2 b6 e1Q h7 R8a3 Nf3 g1Q Nc3 Qe3 Nh4 Qeg3 Ne4 Q3g2 Ng3 R1a2 Qd4 Rb3 Ba6 Ne7+ Kf6 f1B g8Q Bd3 Qg6 Rb4 Qh6 Ra5 Nhf5 Rg8 h8Q Qe8 Nh4 Bh7 Nhf5 Qd8 Q8g7 Rh8 Rh4 Bg8 Nh1 Qc7 Qgg4 Qd8 Qa1 Qc7 Qgd4 Qd8 Bd3 Na6 b8Q Nc5 Ba6 Nd3 Qa7+ Bb7 Rh5 Qa8 Rh3 Kd8 d7 Qc8 Rh5 Ba8 b7 Kc7 d8B+ Kd7 Ne3 Nf5 b8Q+ Qb7 Rh4 Ng3 Qbe5 Qc7 Bb7 Qc8 Qeh5 Kd6 Qf5 Rb6 Qde5+ Kc5 Qd7 Kb5 Nf5 Rba6 Q7d4 Ra7 Qg7 Rh5 Rh2 Rg5 Rh7 Rg4 Qh6 Rh4 Qdc3 Rb4 Qcd4 Bd6 Kg7 Bf8+ Kh8 Qb8 Bc8 Rc7 Bb7 Qc8 Qhf4 Bd6 Qd2 Bf8 Qh6 Bg7+
5NK1/1pPn1Nn1/1N3B1N/QnkB2rq/1b4Q1/1P3R2/q3Nr1p/brB2b2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 d4 cxd4 hxg5 a5 b3 a4 Nd2 a3 Rb1 Kf7 Rb2 axb2 a4 Ke8 Ke2 b1R Kd3 d5 f4 Kd7 c4 Kc6 g4 h5 c5 e5 g6 h4 a5 h3 g7 h2 a6 Rh5 f6 Rh8 f5 Kb5 c6 Rh5 c7 Rh7 f7 Nh6 g8N Rg7 f6 Kb6 a7 Kc5 g5 Nd7 g6 Nf5 Qg4 Rb8 a8Q e4+ Ke2 e3 Kf3 e2 Kf4 e1B Kg5 d3 Ne2 d4 Bg2 Be7 Nc4 d2 f8N d1N Nb6 d3 Nh6 d2 Bd5 Nc3 Qa5+ Nb5 Rf1 d1Q Rf3 Bc3 Nf7 Ba1 Kh5 Rg8 g7 Qe8 Kg6 Qd2 Kh7 Qa2 Ng6 Rf8 g8N Ng7 Ngh6 Rg8 Nf8 Ra8 Nh8 Qh5 f7 Ra7 Nfg6 Bd6 f8B Ra6 Nf7 Be7 Nc4 Rf6 Nb6 Bd6 Be7 Rf5 Ngh8 Rg5 Ng6 Rf8 Nfh8 Rf4 Bf6 Be7 Nf8 Bd6 Re3 Rf2 Rf3 Nb8 Bc4 Kc6 Qd4 Bb4 Nf7 Bh3 Kg8 Bf1 Qg4 Kc5 Bd5 Nd7
1Bqr1n2/p1p1BB2/1Q2q2r/Q2RbQR1/1N3bb1/Kn2P3/2P2QQ1/rk4q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 e5 dxe5 g6 f5 Ba3 Nc3 Be7 Ne4 Bf8 Nf2 Ba6 fxg6 Bb7 g5 Bc8 Ng4 hxg4 Kd2 Ke7 Kc3 Ke6 b4 Kf5 Kb2 Ke4 h4 f5 g7 d5 e3 g3 e6 f4 g6 f3 b5 f2 h5 d4 b6 d3 h6 d2 b7 g2 h7 Qd5 e7 Qd7 e8Q+ Ne7 g8Q Nc6 g7 Nd4 Qgf7 Qe6 g8Q Bh6 Ne2 g1B Qd7 Ng6 Ka3 Bh2 Qe1 d1Q Qa5 Nb3 Rg1 B6f4 Nd4 Nf8 Bc4 f1Q Nc6 Qfh3 Nb4 Kf3 Rg5 Qg1 Bd2 Qhf5 Rd1 Rb8 Bd5+ Ke2 Be1 Be5 Bh4 Bhf4 Qd6 Bd7 Qdb6 Rd8 b8B Qfg4 Qf5 Qh3 Rf1 Kd2 Rf2+ Kc1 Rd2 Kb1 Rd4 Qc6 Bf7 Qb7 Rd5 Qc8 Qfg6 Qe6 Qf5 Bb5 Qg7 Be2 Qgg6 Bg4 Qgf6 Rg8 h8Q Rg6 Qh7 Rh6 Qe4 Bh2 Qf2 Bhg3 Qhf5 Bgf4 Nd3 Re8 Qeg2 Rd8 Kb4 a3 Ka4 a2 Ka3 Bc3 Nb4 Bg7 Rh5 Bd4 Be7 Bde5 Rg5 a1R+
2nn2Rn/NP4p1/4k3/5rP1/2p1nqQb/1nb1Q1N1/r1N1QN1K/2R1BbN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Bh3 Rh6 Bf5 Rh8 Bg4 hxg4 Kf2 Ke7 Kg2 c5 e4 f5 h4 a5 d4 g3 b4 c4 e5 a4 d6+ Kf7 h5 a3 e6+ Ke8 e7 Kf7 e8N a2 d5 Qe7 d7 Rh6 d8Q Rc6 b6 Qd6 b5 Rc5 h6 Ne7 h7 Nbc6 h8Q Ng6 Qh2 Nh8 b7 f3+ Kh3 f2 b8N f1N b6 f4+ Nd7 f3 b7 g2 Na3 f2 Bd2 Qb8 d6 Rf5 Qg4 Ng3 Nef6 f1N Rc1 a1N Ne4 Ke6 Ne5 Nb3 d7 Bb4 Nd3 Ne3 Be1 Qf4 Qb6 Bc3 Nc2 Nd5 Ndf2 Ra2 Qe3 Nde7 d8N+ Ke5 Nf6+ Ne4 Nh5 Bd7 Ng3 Nc8 Ne6 Nd8 Nc7 Bc6 Nb5 Ke6 Na7 Bd7 Nf3 g1B Qg2 Bh2 Ng1 Bb5 Qf1 Bc6 Qfe2 Bd5 Nf1 Bg3 Kg2 Ng6 Rh8 Bh4 Rg8 Nh8 Ng3 Bc6 Nfh3 Be8 Nf2 Bg6 Kh2 Bh5 Qh3 Bg4 Qg2 Bh3 Qgf3 Bg2 Qg4 Bf1
3r3r/1R1b2r1/rnP1Q3/rBK3R1/1p1Q2BB/3Bbp2/1Pq1Q1Bn/bkN5 w - - 0 1 illegal: No proof kernel
1r1R1NQb/2nn1pn1/1N1bQ3/6Rb/1PrN1PR1/B1N3pb/3q1bN1/5K1k w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Na3 Ke5 Nb1 Ke6 b4 Ke5 h4 Ke4 f4 g5 b6 a5 b7 c5 h5 c4 e3 a4 h6 d4 h7 g3 Rh4 d3 Qh5 a3 Kf1 d2 Rh2 d1B Qg4 a2 Re2 c3 Rg2 c2 Ba3 c1N Nf3 Na6 b8N Nh6 Ne1 Nd3 Qe6+ Ne5 Rg1 g4 Ng2 Kf3 e4 Rg8 h8N Nc7 Ng6 Nf5 Nc3 Ng7 Rc1 Be7 Nf8 a1B Rc2 Bb2 Rd2 Ra6 Rd5 Rc6 Rb5 Rc4 Nc6 Qe8 d8Q Qd7 Qe8 Qd8 d7 Bd6 Ra5 Nd3 e5 Nc5 Qh6 Ba1 e6 Bb2 e7 Rh8 Ne3 Rg8 Qe6 g2+ Ke1 Kg3 Nd4 Kh2 Rb5 N5a6 Rg5 Nb8 Ng6 Rh8 Qg8 Bf3 e8N g3 Nf6 Be2 Nfd5 Bh5 Nf8 Ba1 Rf1 g1B Ng2 Kh1 Nb6 Bb2 Rf2 Ba1 Rc2 Bf2+ Kf1 Be3 Nf5 Ba6 Nb5 Bed4 Rg6 Qg5 Qe3 Nge8 Qh7 Rc5 Ne6 Bc8 Qb3 Rf8 Qg8 Bf2 Rc4 Bh8 Nc3 Qe7 Nfd4 Ng7 Qa2 Re8 Nf8 Qe3 Qe2 Rc6 Rc5 Qd2 Re5 Rc4 Qe1 Bb7 Qe2 Rc8 d8R Bc6 Rb5 Bd7 Rc5 Bh3 Qe6 Nd7 Rg4 Ra8 Rcg5 Rb8
2r3N1/2ppbPBb/n3b1N1/b3bBQQ/1r1PQn2/3R3K/1kBQr2Q/7q w - - 0 1 legal: proof: b4 b5 c4 h5 e4 f5 exf5 Nh6 g4 Ng8 gxh5 a6 a4 bxc4 b5 a5 Ra3 Nh6 Rb3 Ng8 Rb4 axb4 h4 Kf7 d4 Kf6 f4 e5 Kf2 g5 Kg2 g4 a5 e4 b6 g3 b7 c3 h6 b3 a6 c2 a7 b2 h5 e3 h7 e2 h6 e1B Nc3 b1B Nge2 Bd2 Rh3 Bc5 Ne4+ Ke7 f6+ Ke6 f5+ Kd5 f7 Kc4 f8Q Kb3 f6 Ba2 f7 Bd6 Qg7 Be5 Nf6 Ne7 Nf4 Re8 h8Q Bc3 h7 Ng6 Bd3 Na6 Qd2 Ba5 Ng8 Qh4 b8Q+ Bb7+ Be4 Re6 Qe8 Rc8 a8B Qh6 Ba3 c1B Bf8 Ba3 Qf6 Bd5 Bg7 Bb1 Qg5 Be7 Bb7 Bc4 Bc2+ Kb2 Bbe4 Rb6 Bf5 Rb4 Bfd3 Be6 Bf5 Nf8 Ng6 Qh4 Kg1 g2 Rd3 Qh6 Kf2 g1R Kf3 Re1 Kg4 Bc5 Qee7 Re2 Qe8 Qh1 Qee7 Bh2 Kh3 Bcd6 Qgf4 Bc5 Qeg5 Be7 Qfe3 Bc4 Qe4 Ne6 Bf8 Bca2 Qhe5 Bb3 h8Q Bc4 Qhh5 Nf4+ Kg4 Bg3 Bg7 Be6 Qh2 Nh5 Qc5 Be5 Kh3 Nf4+ Kh4 Qe1+ Rg3 Bd5 Bg4 Ba8 Qed3 Ba2 Qf6 Bc6 Nh8 Nh5 Kh3 Be6 Qfg6 B5f6 Qcg5 Bcd5 Re3 Bf5 Qe4 Qh1 Rd3 Be5 Qh7 Bg6 Bf5 Be6 Qhh6 Bh7 Ng6 Nf6 Qgh5 Nd5 Q6g5 Nf4+
r3bB2/p3B1rB/2RRBq1K/3n2R1/2nnnb1k/PpB2Qr1/3P1n1N/7Q w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 f5 exf5 h5 g4 hxg4 Nc3 Na6 Ne4 dxe4 Bb2 Nb8 Ba3 Qc7 Bc1 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 c4 e3 h4 g3 h5 e5+ Kg4 g5 f4 e4 a3 g2 h6 e2 Kh5 e1N h7 b4 c6 b3 c7 g4 c5 g3 c6 e3 Qf3 Nd3 Bb2+ Ne5 Bd3 e2 Bc3 Bd7 c8R e1N c7 Bd6 Rh3 Ne7 Kh6 Rg8 h8Q+ Rg7 Rd1 Kf7 f6 Nbc6 Bh7 Nd5 f5 Be8 Rc1 Nd4 Rh5 Nc4 Rg5 Qe7 Rd8 Bf4 c8B Nd3 Rd6 Nc5 Rc2 Ne4 Bd7 Rg8 Bc8 Kf8 f7 Qf6+ Bg6 Ke7 Be6 Rg7 Qh7 Qe5 f8B+ Kf6 Qh8 Ne2 Bh7 Nd4 Nh3 g1N Nf2 g2 Rc1 Nh3 Rc2 Bg3 Rc1 Qf4 Be7+ Ke5 Rc2 g1R f6+ Qf5 f7 Bf4 f8B Rg3 Nd1 Nhf2 Ne3 Bc6 Nf1 Be8 Qd1 Be3 Qe2 Kf4 Qd3 Kf3 Nh2+ Kg2 Qe2 Kh3 Qf3 Kh4 Bb4 Ne5 Rcc6 Bf4 Bc3 Nc4 Qh1 Rf7 Qf6 Qe5 Qf5 Rg7 Qf7 Be3 Qff3 Bf4 Qe2 Qf5 Qef3 Qf6+
k1nQ1BQQ/B4KR1/2rp4/b2PNb2/pQn3q1/nb5Q/3n2RP/2r2r1B w - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a4 hxg4 Nc3 Kf7 Nd5 Nf6 axb5 Ke8 b6 Ng8 b5 Nh6 Nb4 cxb4 Ra3 Ng8 Ra2 Rh4 Ra1 Rh8 Ke2 e5 Kd3 g5 Ke4 a5 Kd5 e4 d4 a4 c4 b3 f4 e3 b7 b2 c5 b1B f6 g3 c6 e2 b6 e1N f5 g2 c7 g4 Ba3 g3 Qf3 Ba2+ Qb3 Nc2 Nf3 g1N Bg2 Bb4 Ne5 Nf3 Rhg1 d6 Bh1 Nc6 b8Q g2 b7 Ba5 Bc5 Qd7 Ba7 Nd2 f7+ Ke7 Rab1 Na3 f8B+ Ke8 f6 Qg4 Qc4 Bb3 Rb2 Rh3 Ra2 Rf3 Rb2 Rf1 Rc2 Nd8 Rb2 Bf5 c8Q Rc1 Qbc7 Rf1 b8Q Rc1 Qbb7 Rb8 Qb4 Rb6 Qh7 Rc6 Qh3 Rf1 Qc7 Nb7 Qg7 Kd8 f7 Kc8 Qgh8 Bb6 Rc2 Na5 Rb2 Kb7 Ra2 Bb1 Rb2 Ka8 Rc2 Rf5 Ke6 Ne7 d5 Bc7 Qcb5 Bd8 Qb6 Nc8 Rb2 N5c4 Ra2 Bh4 Qd8 Be1 Qc7 Qf4 Be7 Nf1 f8Q Bd2 Qcd8 Qh4 Qbb6 Ba5 Qb4 Rf7 Re2 Nfd2 Qfg8 Rf3 Rf2 Bf5+ Kf7 Rc3 Bf8 Rc1 Rf3 Qe4 Rg3 Qe2 Rg7 Qg4 Re1 g1R Re2 Rgd1 Rg2 Rf1
qR2KQ1N/3P1RQ1/2rB4/2bQ1b1b/prQr2RQ/3n4/P4p1n/2Nk1n1n w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g6 f5 Qd5 Be2 Qd6 fxg6 Qd5 g5 Qd8 Bg4 hxg4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 h4 Kc4 Ke5 f5 d4 a5 h5 b5 d5 f4 g7 b4 g6 e3 c6 b3 d6 b2 h6 e2 h7 e1R+ Ne2 g3 c7 a4 c3 g2 Rh4 g1N Qc2 Bg4 c8R+ Nc6+ Ke4 e5 d7 f3 Rb8 Na5 Bf4 Bh5 Kf5 e4 Ke6 e3 Kf7 Rc1 Rg4 Ne7 g8Q Nf5 Qg7 Bc5 Qd1 Nb3 Nd2+ Kd3 c4 b1B Ne4+ Nd2 Ng5 Qc8 Bd6 Ng3 Qf1 Rc3 Nc1+ Kc2 Qe2 Rg8 h8Q Nh1 Qe1 e2 Qh4 e1N Qhh6 Ba7 c5 Nd3 c6 Bc5 c7 Nf1 Ke7 Qa6 c8Q Kd1 Nf7 f2 Nh8 Qa5 Qa6 Nf3 Qc4 Qa7 Qf8 Rb3 Qhg7 Rb4 Ke8 N3h2 Rf4 Qb7 Rf7 Ra6 Qd5 Bc2 Rb1 Rc6 Qdc4 Rbb6 Rb4 Qa8 Qd5 Rb5 Rg4 Bb1 Qh6 Rb7 g7 Rb4 Qf4 Bc2 Qfc4 Bb1 Ng6 Rh8 g8Q Rh7 Nh8 Rg7 Rg3 Rg4 Qgg7 Rd4 Rg1 Ne1 Rg6 Bf5 Rg4 Nd3
1q3Br1/1bq1B1Pr/Q5Rn/p1q1B1Qp/2B1N2P/q3Q2n/B2b2K1/q2k3N w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 d5 cxd5 g5 Ra3 g4 Rf3 gxf3 b3 Bf5 b4 Bc8 Kf2 Kd7 d4 Kd6 g4 c5 h4 f5 e4 a5 b6 h5 b7 c4 e5+ Kc7 b5 Kb6 d6 c3 g5 c2 g6 Nf6 e6 Na6 b8B Qc7 g7 Nb4 d5 Kc5 d7 Rh7 d8B Bb7 b6 Ng8 d6 Nd5 d7 Kb4 e7 Kb3 e8B Bb4 Qe1 Bd2 Nc3 Nh6 Ba3 c1Q Bc4+ Kc2 Bf8 Qa3 Qe3 Qcc5 Ne4 Kd1 Kf1 f2 Nh3 Qc7 Kg2+ f1Q+ Kh2 Qe1 Rg1 f3+ Kh1 f2 Bf7 f1Q Bde7 f4 d8Q Qfd3 Kg2 Qb1 Bg8 Qcc5 Be5 Qbb5 Qd6 Qe8 Qf6 Qb8 Qg5 f3+ Kh1 f2 Kg2 Bc6 b7 Qc7 b8Q Bb7 Qc8 f1Q+ Kh2 Qf7 Kg2 Qe8 Qe6 Qeb8 Qa6 Kc2 Nhf2 Qea1 Nh1 Nf4+ Kh2 Nh3 Kg2 Qba7 Ba2 Rd8 Bgc4 Qab8 Rb1 Rc8 Rb6 Kd1 Rg6 Re8 B7d6 Rc8 Bfe7 Rg8 Bf8 Kc1 Bde7 Kd1
2bb1Q1B/2N1q2K/p4N1R/P5QQ/B1b1pr1B/n1k1q1P1/B4n2/2Bbr1b1 w - - 0 1 legal: proof: b4 d5 a4 c5 bxc5 h5 e4 dxe4 g3 h4 Ra3 g5 Re3 h3 Re2 Bg4 f4 Bf5 fxg5 Bc8 Rg2 hxg2 Kf2 Kd7 Ke3 Kc6 Kf4 Kd5 h4 Kd4 c4 b5 a5 f5 h5 e3 g6 e2 Kg5 e1Q g7 e5+ Kg6 e4 h6 a6 c6 f4 h7 b4 c7 b3 c5 b2 c6 f3 Bc4 f2 Na3 b1B Nb5+ Ke5 Ne2 f1B Ba2 g1B Nec3 Be6 c8B Nf6 g8Q Be7 c7 Bc2 Nd5 Ng4 Nf6 Qe3 Rh6 Nc6 Bd7 Nd4 c8Q Nf2 Nc7 Bfc4 Ba4 Nb5 Qh5+ Kd4 d3 Kc3 d4 Na3 d5 Bd1 d6 Rb8 d7 Rb1 Kg7 Qe8 d8B Ra1 Qa8 Bc8 Qgd5 Rf8 h8B Qd7 Qdg5 Qd6 Kh7 Qe5 Ng8 Rf4 Qb8 Bb4 Nf6 Qe7+ Qg7 Bc5 Qb5 Bb6 Qbg5 Rb1 Qgf7 Rb2 Qfg7 Re2 Qgf7 Re1 Qfg7 Qe5 Qf8 Qe7+ Qgg7 Bf1 Ncd5+ Kd3 Ng4 Qb7 Bh4 Bd8 Ngf6 Qe7 Nc7 Bfe2 Qg8 Kc3 Qf8 Qd6 Qgg4 Bc4 Qgg5 Qe7+
KQ1Rq1k1/Bn3b1n/1rpBq3/b3QrPQ/2PQq1qp/Q7/2B1q1N1/3R4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 gxh4 Nd2 Ke7 dxe5 Na6 e6 Ke8 e5 Nb8 Ne4 fxe4 Ke2 a5 Ke3 d5 Kd4 h5 g4 h3 f4 a4 b4 h2 c4 e3 e7 Kf7 Kc5 h4 g5 c6 e6+ Kg7 f5 d4 f6+ Kh7 f7 e2 b6 e1Q b5 a3 b7 d3 b6 d2 Nf3 a2 Ba3 Kg7 Bd3 Qe2 Ne1 Nf6 Bc2 Nh7 Ng2 Nd7+ Kd6 Qg4 b8Q Ra6 b7 Qe8 Kc7 Rb6 Bd6 Nc5 Qg1 Bd7 Rd1 a1Q Qf2 Qf6 Qd4 Bc8 Rhf1 h1Q Rf5 Rb3 Rd5 Rf3 Kb6 Rf5 Ka7 Qe1 Ka8 Qee4 Bh2 Qfe5 Rd8 Qf6 Bd6 Qfe5 Rh1 d1Q Re1 Qde2 Rd1 Qd7 e8Q Qe7 Qd7 Qe8 e7 Qf6 Qdc7 Be6 Qa5 Rg8 Qac3 Kh8 Qf3 Bg7 f8B Bf7 Qa3 Qfe6 Qc7 Bf6 b8Q Nb7 Bc5 Rg7 Ba7 Kg8 Qh2 Be5 Qhg3 Bc7 Qge5 Q8d7 e8Q Ba5 Qee7 Qe8 Q7f6 Bh5 Bd6 Rc7 Qh6 Bf7 Qh5 Rd7 Bf8 Rd5 Be7 Rb5 Bd6 Rb6
2n2Q1r/1B2p2N/3qPNR1/2kN3K/6pn/n1qq1r2/1QP1nb1Q/3b1QBQ w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h5 g4 Rh7 g6 Rh8 b4 Bh6 g5 Bf8 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 Kf2 f5 Kg3 a5 e4 d5 h4 Kd7 e5 f4+ Kf2 f3 Kg3 a4 h5 a3 Kh4 f2 b6 Kc6 b7 a2 h6 a1Q h7 d3 e6 d4 b5+ Kc5 g7 d2 g6 d3 b6 Qc3 Nh3 Nc6 b8Q Na7 b7 Nh6 g8Q Nf5+ Kh5 Bh6 g7 Be3 Bg2 f1Q Qf8 Nh4 g8N Bf2 Ng5 Qd6 Nf6 Bd7 Qc7+ Bc6 b8Q Nc8 Qb2 Ra3 Bf3 Qh3 Qf1 d1N Qcb8 Ba8 Bb7 d2 Rh2 Qcd3 Nc3 Ne3 Ncd5 d1N Rh1 Nc4 Be3+ Qd4 Rh2 Nc3 Rh1 Ne2 Rh2 Be1 Bg1 Qc3 Rh3 Bf2 Rf3 Qa6 Qh2 Qdd3 Qh1 Qd6 Rf4 Rg8 h8Q Rb3 Qhh6 Rh8 Ngh7 Na3 Qh2 Rb4 Rf5 Rf4 Rg5 Rf3 Rg6 Rf4 Qh1 Nf3 Bc6 Nc1 Nc7 Ne1 Bd5 Ng2 Kg5 Bc6 Q6h3 Nh4 Kh5 Bb7 Bg2 Bf3 Q3h2 Bd1 Bb7 Rf3 Ncd5 Ne2
Q1nk4/5pb1/NR1pRP1N/1R1P4/1nN2n2/3n1Q1b/1rR1Bq1r/KbR4q w - - 1 2 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 Nf6 h4 gxh4 d5 Ng8 Be3 Be7 Bd4 exd4 Rh3 Bd6 Rh1 Bf8 Kd2 a5 Kc1 h5 Kb2 d3 f4 d6 g4 a4 e4 h3 c4 h4 g5 h2 b6 h3 e5 d2 e6 Ba6 f5 Nd7 e7 Bb7 g6 Qc8 c6 Ba6 c7 Bg7+ f6 Qd8 c8Q Rh7 c5 Rb8 b7 Rh5 c6 Nf8 c7 Ne6 Nc3 Bd3 Rc1 a3+ Ka1 a2 Qf3 d1B Na4 Nf4 Be2 Bb1 Nc5 Bdc2 Na6 Bf5 Rc6 Rh4 Rb6 Rh8 Kb2 a1N Rb5 Nc2 Rb6 Bf8 g7 Nb4 Ka1 Bg4 Qf2 Rh6 Nf3 Rh4 Rd1 h1N Nd2 h2 Nc4 Bh3 Qf3 Nf2 Rc1 h1Q Rb5 N2d3 Rb6 Nh6 g8N Nf5 Nh6 Bg7 Rb5 Nd4 Rb6 Ndc6 Rc2 Na7 Rc1 Ra8 b8R Rh5 Qb7 Nc8 Rb5 Ra7 Qa8 Rb7 Rc2 Kd7 e8R Qe7 Rc1 Qe3 Re6 Qf2 Rc2 Bg2 Rb6 Rh2 Rc1 Bh3 Rb5 Na7 c8R Rb6 Rcc5 Nc8 Rc2 Kd8 Rc1 Rc6 R8b6 Rc7 Nb2 Rc6 R5c2 Rc3 Nc4 Rb3 Rc5 Rb2 Ra5 Qhg2 Rab5 Qh1
n2bN2r/pKNr1nrk/P2B2N1/B5Q1/3bQ2b/pqPB1q2/1N4b1/R3N3 w - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 e4 b5 g4 f5 gxh5 Kf7 exf5 Ke8 a5 Qc7 Ra3 Qd8 Ra4 bxa4 Kd2 Kf7 Kd3 d5 f4 e5 h4 g5 f6 a3 a6 g4 f5 g3 b5 g2 b6 Nc6 h6 Qd6 b7 Qd7 b8N Bg7 h7 Bh6 h5 Bg5 h6 Qe8 Qe1 Bh4 Nd2 Na5 Nd7 Bg5 Ngf3 g1B Qe4 Bb7 Nc4 Qf8 Nb2 Nc4 Bd2 Nb6 Ne1 Rc8 Bc3 Na8 Ba5 Rc7 c3 Qb4 Be2 Qb3 Bf1 Ne7 Be2 Nc6 Bf1 Nd8 Be2 Rf8 h8N+ Kg8 f7+ Kh7 Ng6 Rh8 f8B Nf7 Bd6 Bd8 f6 Be3 Nc2 Bc6 Ra1 Bg1 Ne1 Bb7 Kd2 d3 Bf1 Bf2 Be2 Bh4 Ke3 d2 Bd3 Bc6 Kf3 d1Q+ Ke3 Ng5 f7 Qf3+ Kd2 d4 f8N+ Kg8 Ne6 Nf7 Qe2 Rb7 Nc7 e4 h7+ Kg7 Nf6 e3+ Kc1 Kh6 Nfe8 Bd5 Qg2 e2 Kd2 Be4 Qg4 Bc6 Qe4 Bhf6 Bc2 d3 Bb1 Bd4 Bc2 Rg8 Bb1 Rg7 h8Q+ Rh7 Qf6 Rh8 Bc2 Kh7 Qg5 Bd5 Kc1 d2+ Kb1 Qb5 Bd3 d1R+ Kc2 Qb6 Bdb4 Bc6 Kb3 Rd2 Kc4 Rd1 Ng2 e1B Bd6 Bh4 Ne1 Rd2 Nb5 Rd7 Nbc7 Qb7 Qee5 Rg2 Qe4 Bg7 Kc5 Qb3 Qc4 Be4 Qcd5 Bd4+ Kc6 Bf5 Qe4 Bh3 Nb5 Rg1 Nbc7 Bg2 Ne5+ Qf5 Qe3 Bh3 Qd2 Rgg8 Ng6 Qf3 Qe3 Bg2 Qg5 Bb6 Kb7 Rg7 Bf1 Bbf2+ Bb5 Bb6 Bd3 Bd4+
1Q1QbrN1/pq2pkB1/P1R5/1n3N1K/1nNq1r2/3b1q1r/2BQPN2/1q1N4 w - - 1 2 illegal: No possible last move
q3n1bN/pR1Q3r/4Nn2/bR2N2R/1b2r1Q1/p1NP4/P2k1b1N/1n3BqK w - - 0 1 legal: proof: h4 f5 e4 g5 exf5 gxh4 c4 d5 cxd5 b6 b3 Nd7 Ba3 Nb8 Bb4 Bb7 Bc3 Bc8 Ba5 bxa5 f4 Kd7 Kf2 Kd6 g4 Kc5 Kg2 Kd4 f6 c5 b4 e5 d6 h5 f7 h3+ Kh2 c4 f5 a4 d3 Ke3 b5 c3 b6 h4 g5 c2 f6 c1B b7 e4 g6 a3 d7 Rh7 g7 Bd2 Nf3 Qc7+ Kg1 h2+ Kg2 Bfb4 d8Q Na6 b8N Be6 Qd6 h3+ Kg3 Bdc3 Nc6 Re8 Rg1 h1Q f8N h2 f7 Nf6 g8R Qb8 Rg5 Nc7 Rd5 Re7 Re5 Nce8 Ng6 Qc7 f8N Bg8 Qd5 Ba5 Qe6 Bcb4 Nh8 Qb8 Qf7 Qa8 Rg2 Qg1 Rh5 h1N+ Kh3 Ng3 Nce5 Ne2 Rg5 Qf2 Ne6 Nc3 Nh2 Qf4 Kg2 Qh4 Kh1 Qg3 Nd2 Nb1 Qg4 Ng7 Ndf3 Nge8 Nfd4 Kd2 Ne2 e3+ Qf3 Rd7 Nc3 Rd4 Qd7 Re4 Qf5 e2 Qg4 e1B Rg7 Bf2 Rgg5 Kc2 Rf5 Nd2 Rd1 Nb1 Rd2+ Kc1 Rb2 Bbc5 Rb7 Kd2 Neg6 Be7 Rfb5 Beb4 Ne5 Qg1+
1BR2QQ1/1q1kB3/B1rP3N/5rN1/2rBpp1b/B1nqr1bn/3K1P1N/5b2 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 h5 gxh5 dxe4 Ra3 Nc6 Rb3 Qd5 axb5 Qd6 b6 Qd8 b5 Nb8 Rb4 cxb4 c4 f5 d4 a5 h4 g5 d5 e5 c5 b3 d6 a4 b7 a3 h6 e3 c6 f4 h7 e4 b6 a2 c7 a1R h5 e2 h6 b2 Bg2 g4 Rh4 g3 Nf3 Ne7 Be3 R1a4 Bc5 R8a5 Qd5 Bh3 c8N Rc4 Kd2 e1R Ba3 Nbc6 b8Q Ne5 b7 Qd7 Ng5 Re3 Bf1 g2 Qg8 Nd5 Ne7+ Qc8 Nf5 g1B Qa8 Kd7 b8B Nc3 Rh5 Rc6 Ba6 Be7 Qf8 Rg8 h8B Bh2 h7 Bg3 Bf6 Nf7 h8B Bf1 Nh6 Rf5 Rh1 Bd8 Be7 Qb7 Bd4 Rh8 Kc2 Rc4 Nd2 Rg8 Ndf3 b1Q+ Kd2 Rc6 Ne6 Ng5 Nh2 Nh3 Ng5 Rg7 Rg1 Rgf7 Qg8 Rfc5 Rh1 Rc4 Rg1 Rf5 Rh1 Bg2 Rc1 Bf1 Bba7 Bb6 Qaf8 Bd8 Bb8 Nd5 Rc3 Rb6 Bef6 Rc8 Rc4 Nc3 Ne6 Rb4 Rc6 Rc4 Rc5 Rc6 Bh4 Rb6 Rc8 Rbc6 Bg5 Bf6 Bh4 Bh8 Bd8 Bf6 Be7 Bfh4 Ng5 Qd3+
B4nNb/NB3R1N/1q1b1K1Q/1b2p3/3P1B2/1pb1PQ1n/2r1nq1N/1r2N1k1 w - - 0 1 illegal: No possible last move
kq1RbNrN/nr1Q4/4p1Q1/NN4p1/N5nP/1R1bb1R1/n5P1/b1Bq3K w - - 0 1 illegal: No proof kernel
2r2nqr/1bBp1n1Q/2p1B1r1/2BNB3/Rb1Pk3/1K1qN3/3qQP1B/4Q1q1 w - - 0 1 legal: proof: b4 b5 c4 h5 e4 f5 exf5 Nh6 g4 Ng8 gxh5 a6 a4 bxc4 b5 a5 Ra3 Nh6 Rb3 Ng8 Rb4 axb4 d4 Kf7 Kd2 Kf6 Kc2 e5 h4 g5 h6 c6 h7 e4 a5 g4 b6 e3 a6 g3 h5 e2 a7 e1Q h6 c3 b7 g2 Nf3 g1Q Kb3 c2 Ne5 Qg3+ Nc3 Be7 Bc4 Qe8 Bf4 c1Q Be6 Qcd2 Nc4 Bd6 Qe2 Be7 Ne3 Na6 b8B Bb7 Bbc7 Rc8 a8Q Qeg1 Rh3 Qf3 Bh2 Kg5 f6 Nc5+ Kc4 b3 f7 b2 f8B b1R Ncd5 Qef7 Qa1 Rb3 Qae1 Qg6 Bg4 Ne6 Rg3 Bb4 Bc5 Nf8 Be6+ Qg4 Rf3 Rb1 Rh3 Rd1 Kb3 Qgd3+ Ka4 Qg6 Nf5 Q1g2 Rg3 Ra1+ Ra3 Q2g3 Nfe3 Rd1 Ne7 Qgd3 Qh1 Rg1 Ra1 Rg2 Qhe1 Rg1 N7d5 Qg2 Nc3 Qf1 Kb3 Rg3 Ra8 Qg1 Ra7 Rg2 Ra4 Qg3 Bd8+ Kf4 Ba5 Nf6 Bd8 Rg8 h8Q Ne4 h7 Ng5 Qg7 Nf7 h8B Rc7 Qh7 Rc8 Bhf6 Rh8 Bc7+ Ne5 Q2f1 Kf3 Bg7 Nf7 Bf6 Qg8 Bfe5 Qb5 Ncd5 Rg6 Qee2+ Ke4 Qfe1 Qbd3+
5rRK/Qn1N3P/R2p1BR1/q2rRB2/b1p1b1qQ/1q1PQ3/3n3b/k3q2R w - - 0 1 legal: proof: e4 h5 c4 b5 g4 f6 gxh5 f5 exf5 a6 b4 bxc4 Nc3 a5 b5 Ra6 Nd5 Ra8 Nb4 axb4 Ke2 Kf7 Ke3 Kf6 Ke4 e5 a4 g5 f4 c5 h4 c3 d3 c2 h6 c4 b6 g4 h7 d6 a5 b3 b7 b2 h5 b1B h6 g3 a6 g2 a7 Na6 b8Q Qb6 Qf3 Qd8 Ra5 Bg7 Bb2 c1Q Qe3 Bc2 Nf3 g1Q Bh3 Qb1 Qb7 Rb8 a8R Qg4 Qba7 Bb7+ Rd5 Qa5 Bd4 Kf7 f6 Ke6 f7 Ba4 f8R Qb3 Rf5 Bf6 Rg5 Rf8 Rg7 Bh4 Rg5 Bg3 Rg6+ Kd7 Bb2 Kc6 Ba1 Bh2 Bd4 Qg1 f5 Qgd1 f6 Nc5+ Kf5 Kb5 f7 Kb4 Bg4 e4 Ne5 Ka3 Nd7 Ka2 Re5 Nf6 Bh3 Rhg8 h8Q Bd5 Kg5 Nb7 Bf5 Qf3 h7 Qg4+ Kh6 Rg7 Qc5 Bdc6 Ra6 Rgg8 Qg7 Bd5 Qg5 e3 Qh4 e2 Bb2 e1Q Qe3 Be4 Bd4 Rc8 f8R Rc5 Ba1 Rh8 Rg8 Rb5 Qe7 Rd5 Kg7 Kb1 Rd8 Rf8 Bc3 Rf7+ Kh8 Ka2 Rdg8 Rf8 Qa7 Kb1 Bd2 Ka1 Bg5 Bg2 Qe8 Ne4 Bf6 Bf3 Qd8 Bg2 Qdb6 Nd2 Qe3 Be4
1r2Bb1N/1Np3bp/N1Q2P2/3rR1R1/n1P1b1Nq/1q1b2r1/K2Q2n1/1RN3k1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 e4 Ke7 e6 f6 e5 Ba6 Bf4 Bc8 Bg3 Ke8 e7 Kf7 e6+ Kg7 Be5 fxe5 Qe2 Kg6 Qd1 Kf6 Kd2 Kf5 Kc3 Ke4 Kb3 a5 e8N d5 f4 Ke3 g4 Kf2 e7 a4+ Ka2 e4 b4 a3 f5 h3 g5 d4 f6 h2 g6 e3 b6 e2 g7 e1Q b5 d3 b7 d2 b6 Bf5 Nc3 Be4 Na4 Bf5 Rb1 Nd7 b8R Nh6 g8N Bd3 b7 Nc5 Ne2 Nf5 Nh6 Bg7 Nd6 Nh4 e8Q Rg8 Nc1 Ng2 Rg1 h1B Ndf7 Qd5+ c4 Qf3 Qc6 Qee4 Rb5 Qh4 Nh8 Qfh3 Re8 Rb8 Be2 Q3g3 Qc2 d1R Qd2 Qe3 Re5 Qeg3 Nb6 Na4 Nc8 Qf3 Nd6 Qe3 Kb3 a2 Rbc5 a1B Ka2 Bd4 Bh5+ Qe2 Rb5 Bc5 Rb1 Bb4 Be8 Ba3 Ndf7 Bd6 Nd8 Bdf8 Qc2 Rd2 Qb2 Qf3 Qc2 Ne1 Rgg5 Ng2 Ng4+ Kg1 Qb2 Be2 Qc2 Rd5 Qc3 Bd3 Qd2 Ra8 b8N Qfg3 Na6 Rb8 Nb7 Qf3 Ka1 Qd1 Qb4 Qb3 Qbd6 Nf4 Qb4 Bhe4 Qd2 Ng2 Rg6 Bh6 Ne3 Qb4 Rg4 Rg5 Ka2 Bhg7 Rg3 Rf5 Rg4 Rf3 Rgg5 Rg3 Ng4 Qb3+
qR2rbr1/4bBn1/3K1kpR/R2P4/1N1pq2R/4QN2/2nbqQP1/1b1N2R1 w - - 0 1 illegal: No possible last move, all moves rejected
2r1nN1n/4pb2/R1BrQ1Nb/n4QQ1/6Rq/1qkr1P2/1R2PKp1/2nR3R w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 b3 fxg4 Ba3 h5 Bd6 h4 Bg3 hxg3 d4 Kf7 h4 Kf6 b6 g5 b7 c5 d6 a5 h5 a4 d5 Ke5 h6 c4 d7 c3 b4 c2 h7 c1N b5 a3 d6 g2 b6 g3 Nd2 Kd4 Ngf3+ Kc3 Nd4 g1Q Nc4 g4 Ne5 a2 Ne6 g2 Qd5 g3 Ng6 Nf6 Qg5 Bh6 Nef8 Nc6 b8R Ne5 b7 Qb6 d8R Be6 d7 Ra3 f3 Rg8 h8Q Ne8 Qhf6 Qh2 Qff5 g1R Rbc8+ Bc4 b8R Qh4 Rc7 Qe6 Rb2 Nf7 Ra8 Rb3 d8Q Nh8 Ra6 Qe3 Rd7 Bf7 Rd1 Qb6 Rab1 a1N Qd6 Ra3 Rd4 Nab3 Rg4 Na5 Qde6 Qb3 Ra1 Rg2 Rab1 Rh2 Bh3 g2+ Rg3 Ra4 Kf2 Rd4 Ra1 Rd3 Bg4 Na2 Rad1 Nc1 Bh5 Qhb4 Rg4 Rh4 Rg3 Rhd4 Rg4 Rd6 Rd4 Nf6 Nh4 Re3 Nh7 Rc8 Nf8 Bg8 Be8 Rd3 Nhg6 Bf7 Bc6 Ne8 Rf4 Qb5 Rb4 Q5c4 Ra4 Qf4 Rd4 Qh2 Rg4 Qh4+
1N1B4/q5p1/1rn2R2/2K1b1b1/pn1Q2q1/Pbq2BR1/QQb1QbPk/Q2R4 w - - 0 1 illegal: No proof kernel
1bQ1q3/K3R1Bn/BQ1pbpb1/NB1P2n1/2Qrk2n/1b2B3/b1n2P2/1B2N3 w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 d4 g5 h4 gxh4 a4 Ba6 d5 Bg7 b6 Bf6 b5 Bc8 b7 Bg5 Ra2 Be7 Rd2 Ra6 Rd4 exd4 Qb3 Rc6 Qd1 Rc5 b6 Rb5 axb5 a4 Bd2 Ba3 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 e4 h5 g4 c5 g5 d3 g6 d2 g7 h3 Qf3 d1B Nc3 f6 Qg4 h4 Qg6 a3 Na4 h2 Bd3 a2 Bg5 a1N Bb1 h3 Be3 Nh6 g8B Nf7 Bh7 Ng5 Nb2 Bd6 Qg8 Bc7 Nf3+ Kd6 Qf7 Nc2 Ne1 Ke5 Qh5 Qe7 Qg4 Qe8 Rf1 h1B Bg6 Na6 b8Q h2 b7 Rh4 b6 Nh7 Kb5 c4 Qa8 c3 b8B Bhf3 b7 h1B Bh6 Kd4 e5+ Be4 e6 Nc5 e7 Ne6 Ka6 d6 Nc4 Neg5 Na5 Be6 Bg7 Bhf3 Rg1 Bfe2+ Ka7 Bc4 Rg3 Ba2 Re3 Ke5 Qe2 Rg4 Qc4 Rf4 Bh5 Kf5 Bf3 Bd3 Bg2 Rd4 Bf1 Kf4 Re5 Bg6 Bd3 Ne3 Bf1 c2 Be2 c1N Bf1 Qg8 e8B Ng2 Bb5 Bdb3 Bfd3 Nh4 Ba6 Bh3 Re7 Qe8 Bf1 Ne2 Bb5 Bd8 Bc7 Bd7 b8Q Be6 Bb6 Bc7 Bc5 Ke5 Qb6 Kf4 Qc8 Ke5 Nc2 Ke4 Ba6 Nc3 Be2 Nd1 Bb5 Ne3 Ne1+ Nc2 Bd3+ Ke5 Bf1 Rd3 Be3 Rd4 Ba6 Kf5 Qcc5 Ke5 Bfb5 Ke4 Qc4 Bb8+
R1n1Q3/3R1p1r/1bkr1P2/b3R3/nr1B3q/R1BQ2np/1p1Q1K1P/1b2N1R1 w - - 1 2 legal: proof: b4 e5 d4 b5 dxe5 c6 a4 Ke7 axb5 Na6 b6 Nb8 b7 Ke8 b5 Ba3 Qd2 Be7 Qd1 Bf8 f4 g5 e3 Na6 f5 Nb8 b6 Nh6 Bb5 cxb5 Nc3 Ng8 Nce2 Ba3 Nf4 gxf4 Rb1 Bc5 Ra1 Bf8 c4 d5 g4 Kd7 c5 h5 e4 a5 e6+ Kc6 e7 h4 e8Q+ Nd7 b8Q f3 b7 h3 g5 b4 e5 b3 g6 a4 g7 d4 e6 a3 e7 d3 Qf4 d2+ Kf2 a2 b8B Ra4 Be5 Rb4 Bcb2 Rh7 Bed4 Ba6 Qf1 d1R Qd2 Bd3 Bbc3 Bc2 Qfd3 Bb1 Kg3 f2 f6 f1N+ Kf2 Ng3 Nf3 Qc7 Re1 Qf4 Re5 Qh6 Ne1 Qh4 Qd8 Nb6 e8R Bd6 R8e7 Na4 Rd7 Ne7 g8R Bc7 Qe8 Nc8 Rg4 Bb6 Rg8 Nf1+ Rg3 Bc2 Rb1 a1B Rc1 Bb2 Ra1 Bb1 Ra3 Qh6 Rg2 Ng3 Rg1 Qh4 Rdd5+ Kc7 c6 Bc1 Rd8 b2 Rd6 Kb8 c7+ Kb7 Rd7 Kc6 Q2c2 Bh6 Qce2 Bf8 Qed2 Be7 Bc5 Bd8 B5d4 Na7 c8R+ Bdc7 Ra8 Nc8 Qh6 Ba5 Qf1 Rd3 Qd2 Bcb6 Qfe2 Re3 Qed3 Re4 Rb5 Re6 Re5 Rd6
nn2bKb1/B1Pqb2R/r2r1k2/1QppprN1/2PQB1Q1/6nQ/4R2R/1Q6 w - - 0 1 illegal: No proof kernel
3R1N1r/NqB4b/qQ6/1Rp1ppQ1/N2nq2n/k3PQ1K/n3P2Q/1r3Qb1 w - - 0 1 illegal: No proof kernel
1q2BBR1/2pQnpP1/1B1nn2B/1rPqk3/2p4N/4qQRK/1bb1Q3/1rB5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 a4 exf4 axb5 Bc5 Na3 Be7 c5 Bf8 Nc4 dxc4 Kf2 Kd7 d4 Ke6 g4 h5 Kg2 a5 b4 h4 e4 f3+ Kh3 f2 b6 a4 e5 a3 b7 a2 b5 Bd6 d5+ Kd7 e6+ Ke7 g6 Kf6 e7 Qf8 e8Q Qh6 g7 Ra7 b6 Ra3+ Nf3 Ra8 Qd7 Bf8 g5+ Kg6 d6 Ra7 Rg1 Rh7 Qe2 Ra5 Bg2 Nc6 b8B f1N b7 Be7 Ba7 Nd2 b8B Ne4 Bb6 Rb5 Ba5 Nd8 Ba7 Bf6 B7b6 Ne7 Bad2 Ne6 g8Q+ Kf5 g6 Qe3 g7 Bb2 Rb1 Bb7 Qa8 a1Q Bh1 Kf4 Rg3 Qa7 Ra1 Bc8 Qb7 Qb8 Ra8 Kf5 Qbc6 Qd3 Bh6 Qe3 Kh2 h3 Nh4+ Ke5 Bg2 Nd2 Qcf3 Bb7 Bh1 Be4 Bg2 Bc2 Bh1 Qb7 Rg8 Rh8 Qg4 Qc8 Bc6 Ne4 Qgf3 Qb7 Qe8 Qa8 d7 Qb8 d8B Nd6 Qd7 Rh7 Qc8 Rh8 Be8 Rh7 Qd7 Rh8 Kh1 h2 Kg2 Rh7 Kh3 h1Q+ Qh2 Qd1 Qhf2 Qd5 Q2e2 Ng6 Be7 Rh8 Bf8 Ne7 Bg5 Rh5 Bh6 Rf5 Qg4 Rf1 Qgf3 Rd1 Bd2 Ra1 Bc1 Rb1
N2nq2R/Q3R2Q/1R3QpR/2q3rn/N1BPp1b1/1K3nP1/3b1prk/1R3q2 w - - 0 1 illegal: No proof kernel
N1Rn4/k1pQKq2/1NR1pr2/1Br1p2n/r3R3/P1N1b1R1/1Rq1P3/1bb3Q1 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 gxh5 d5 cxd5 f6 Bb2 Bd7 Bd4 Bc8 Be5 fxe5 h4 Kd7 f4 b5 Kf2 g5 Kg3 b3 Kg4 e6 d4 b2 d6 Kc6 f5 Kb7 f6 b4 a3 b3 d7 Ra6 h6 Rb6 f7 Bd6 f8N Qe7 d8R Rc6 d5 Rc2 h5 Ka8 h7 Rc6 h6 Bb7 Rc8 Rc2 Nf3 Bb4 d6 Qd8 d7 Be7 Rh3 Rd2 Nc3 b1R Rg3 b2 Bg2 Be4 Qg1 Rf1 Rc1 Qe8 d8Q b1Q Qd7 Rc2 Nd2 Qf7 Nc4 Rf6 Nb6+ Ka7 Na8+ Bc5 Bf3 Nc6 Rb8 Be3 Rb2 Bg6 Bd5 Nd8 Bc6 Bd3 Bb5 Be4 Nd1 Rc5 Nc3 Ne7 Rcc2 Nd5 Rc1 Rg8 h8R Nf4 h7 Nh5 Rcc2 Rgg6 Rg8 Bc1 h8R Rg7 Re3 Bh7 Re4 Bg6 Qd2 Rh7 Nd7 Qa2 Ndb6 Qb3 Kh3 g4+ Kh4 g3 Qd7 g2 Rg7 Bf5 Rg3 Rhh6 Rf8 Bh7 Kg4 Rf4+ Kg5 Rhf6 Rd2 Bg6 Rd6 Qc2 Rc6 Bf5 Qe1 g1B Re8 Bd4 Qg1 Bde3 Rh8 Nb7 Rc8 Nd8 Rd4 Qd2 Qh1 Bb1 Qg1 Qc2 Rdb4 Qf8 Rc4 R6f5+ Kg6 Rf1 Rh4 R1f4 Rhg4 Ra4 Rf4 Nf6 Re4 Qe8+ Kg7 Qg6+ Kf8 Nh5+ Ke7 Rf6 Ra2 Qg8 Rb2 Qf7+
nBQbrqR1/3QR1q1/6np/nB1R2p1/5N2/2B1Br2/1KP2p1P/1bq2B1k w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 gxf5 e5 f4 Qb6 f6 Qd8 f5 Na6 Nc3 Nb8 Nd5 Be7 Nf4 exf4 Ra2 Bd6 Ra1 Bf8 Kd2 Kf7 b4 d5 e4 g5 e5 a5 b6 a4 b7 d3 Kc3 h6 b5 d2 b6 f3 Rb1 a3 Bb5 d4+ Kb3 d3 Bb2 f2 Qf3 d1Q Ne2 d2 Nc1 a2 Qh3 a1Q Bf1 Nd7 b8Q Be7 b7 Qf8 Nd3 Nb6 Bc3 Qc1 Nf4 d1N Rg1 Bd7 Qc8 Nb2 b8B Bd8 Rh1 Ne7 e6+ Kg8 f7+ Kh7 f6 N2c4 Rb2 Ng6 e7 Be6 e8B Ra7 Rb1 Na8 Bb5 Rd7 Rb2 Rd3 Ra2 Rf3 Ra7 Bd5 Re7 Qa7 Qhd7 Na5+ Ka4 Ba2 Kb4 Qg7 f8R Bb1 f7 Qc5+ Ka4 Qd6 Rg8 Qdf6 Bfe2 Qf8 Rd1 Q6g7 Rd5 Ne5 Nd3 Kg6 Bf1 Kh5 Nf4+ Kh4 Kb4 Ng6 Ka4 Qe8 f8B Qef7 Re2 Qff6 Bc5 Qff8 Re7 Qff6 Rf8 Rg8 Be3 Qf5 Rff7 Re8 Rf8 Qff7 Rg8 Qff8 Bfd3 Qd1 Ka3 Qd2 Ne6 Kh3 Kb2 Kg2 Nf4+ Kh1 Bf1 Qc1+
Q2R1r1N/Nr3pK1/6p1/1QqB1P1Q/2b1b1p1/1RnQR1P1/1b2b1Q1/b2nk3 w - - 1 2 legal: proof: b4 b5 a4 c5 axb5 e5 bxc5 h6 d4 exd4 Bg5 hxg5 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 g4 f4 a4 h4 d3 b6 a3 g3 d6 h5 a2 f5+ Kf6 c6 Kg5 h6 d5+ Ke5 d2 e4 d4 h7 d3 c5 Ra7 c7 Ra8 c6 Bb4 b7 Nf6 Na3 Na6 b8R Qf8 Rb1 Bb7 c8Q Ra7 c7 Ba8 Ne2 Rb7 Bg2 Nc5 Re1 Nd5 Nb5 Ne3 Nf4 Na4 Na7 Nc3 Rb3 a1B Ng6 Ba3 Qe6 Rg8 c8Q B3b2 h8Q Qc5+ Qd5 Rf8 Qf3 Ned1 Re3 Qb5 Qh7 Qc5 Nh8 g6 Qh3 Nf2 Qe8 d1B Qb5 d2 Rd8 Be2 Bh1 d1B Qfg2 Bc4 Qh7 Qc8 Qd3 Be2 Qg7 Kh5 Kf6 Qc5 e5 Nfd1 Qg8 Kh6 e6 Kh5 Kg7 Kg5 Kh7 Kf6 e7 Rb6 e8Q Be4 Qec6+ Ke5 Qa8 Rb7 Kg7 Qd5 Qb1 Kd4 Qh7 Qd6 Rc8 Qc5 Qh5 Nf2 Qbf1 Nfd1 Rd8+ Bed5 Re6 Kd3 Re3+ Kd2 Qff3 Ke1 Qe4 Rc7 Qd3 Re7 Qgh3 Bc6 Bd5 Rc7 Qg2 Rb7 Be6 Bf3 Bd5 Be4
1Nbn2r1/4nNpK/4kN2/q2r2PB/1b1p2n1/1bN1p1B1/PQ1BR3/N4Q1b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 f5 exf5 h5 dxc5 Kf7 g5 Ra3 Nd2 Ke8 Rb1 Ra6 Rb3 Ra5 Rg3 Ra8 Rg4 hxg4 Ke2 Kf7 Ke3 d5 Kf4 b5 h4 b3 c4 b4 f6 b2 c6 b1B h5 e6 c5 b3 c7 b2 h6 d4 c6 g3 h7 g2 Ne2 g1N Rh2 Bf5 Nc3 b1B Nb3 Nh6 Na1 Qe8 Be2 Qd8 Bd2 Bd7 c8N Qa5 c7 Na6 Ne7 Ng4 c8Q Bc6 Ng8 Nf3 Qb7+ Be7 Qf1 Ng1 Qb2 Bb4 f3 Kg6 f7 Nb8 f8B Kf7 Bd6 Bbc2 Nf6 Rg8 Be5 Bb3 h8N+ Ke7 Nf7 Rd8 Bd1 Rd5 Re2 Bb7 Bc7 Nc6 Bb8 Nd8 Be5 Bd3 Bb8 Bb5 Ke4 e5 Kf5 e4+ Kg6 e3 f4 B5c4 f5 Bca6 Kh7 Nf3 Bg3 Nfe5 Rf2 Nh6 Bh5 Ng8 Re2 Bc8 Nd7 Bb5 f6+ Ke6 Nb8 Ne7 Nh6 Bba6 f7 Bab7 f8N+ Kd6 Nfd7 Ke6 Nf6 Ng4 Be5 Rb5 Bf4 Bh1 Bg3 Rd5 Nf7 Ndc6 Nd6 Bb7 Na6 Rg8 Nf7 Bc8 Nb8 Nd8
1r1rNRnQ/5b1N/1k3p2/1P2p1N1/n4BQb/3pRP2/3r1r2/1qNRKN1n w - - 0 1 legal: proof: e4 b5 g4 d5 d4 h5 gxh5 c6 a4 Qd7 axb5 Qd6 Bc4 dxe4 d5 Qc7 d6 Qd8 Bd5 cxd5 c4 Kd7 b4 g5 h4 e5 b6 Kc6 c5 a5 d7 g4 b7 a4 h6 a3 h7 d4 h5 a2 h6 e3 Nd2 e2 Rh3 g3 Nf1 d3 Bf4 g2 Re3 Qb6 d8R Be7 Rf8 Na6 b8N+ Kc7 f3 Be6 c6 Nc5 Nd7 Rd8 Nf6 Na4 Qc1 Qb5 Qc4 Kb6 Rd1 a1R c7 Ra2 Qe4 Rd2 c8N+ Ka6 Nd6 Kb6 Nde8 Bb3 Nh3 g1N Ng5 Nh3 Qf5 Nf2 Qg4 Qd5 b5 Nh1 Nfe4 Qd4 Nc3 Qb4 Na2 Bc4 Nc1 Qb1 Nh2 f6 Nf1 Bf7 Bg3 Bb4 Bh2 Ne7 Bf4 Rg8 h8N Ba5 Ng6 Rh8 Nh7 Ng8 Bg3 Bc3 Nf4 Bd4 Nh3 Bc5 Re4 Be3 Bh2 Bg5 Re3 Bh4+ Bg3 Rb8 N3g5 Rc8 Nd6 Nb2 Rd8 Na4 Nf8 Kc5 h7 Ne7 Re8 Rg8 h8Q Kb6 Nfh7 Rb8 Rc8 Re8 Rd8 Ng8 Rc8 Re7 Rf8 Rd7 Ne8 Rd6 Bf2 Ng3 Bg1 Rdd8 Kf2 Nh1+ Kg2 Bf2 Bh2 e1R Bf4 Ree2 Ng3 Bg1+ Kf1 Rg2 Ke1 Bh2 Qh4 Rgf2 Nf1 Bg3 Qg4 Bh4
1n1brQR1/Qb3p1p/1Q2n1pR/rN1r4/P7/1b5P/1kB1QRN1/1r2QKq1 w - - 0 1 illegal: No proof kernel
B2Q1Bk1/pQnpr1p1/4NBr1/2q1R3/4Q1Rb/P1Qbn3/KPn5/n1Q4b w - - 0 1 legal: proof: d4 b5 g4 h5 c4 e5 cxb5 exd4 Nc3 Bc5 Ne4 f5 gxf5 Bf8 Nf6+ Ke7 Ng4 hxg4 Bf4 Kf7 Bc1 Ke8 Kd2 Kf7 Kc2 c5 Kb3 g3 e4 d3 h4 d2 f4 g2 b6 Qf6 h5 Qe5 f6 Nc6 b7 Nce7 b8Q Qg5 f5 Qh4 a3 c4+ Ka2 c3 h6 c2 e5 Nc6 h7 Qf2 Ne2 g1N Rh4 Nce7 Rg4 Bb7 Nd4 Bh1 Bg2 Nd5 Ne6 Qc5 Qb7 Ne3 Qe1 d1B Qc3 Ne7 Rb1 Nc4 Bg5 Be2 Re1 Bd3 Ree4 Ne2 Bf3 Rg8 h8Q Rb8 Qh6 Nd4 Bh4 Rh8 Qc1 Kg8 Re3 Nd5 f7+ Kh7 f6 Nc7 Re2 Be7 f8Q Re8 f7 Ne3 Bf6 Bd8 Bd5 Re7 Qe8 Rf8 Bg2 Rh8 f8B Kg8 Qg6 Rh6 Qge4 Nc4 Ng5 Rg6 e6 Rf7 e7 Ne3 e8Q Re7 Bf3 Na6 Ne6 Nc7 Qb1 c1N+ Ka1 Na2 Qbc1 Nb4 Bg2 Nbc2+ Ka2 Na1 Re1 Rf7 Re2 Be7 Qd8 Ndc2 Rd2 Ba6 Rd5 Bb5 Re5 Bd3 Bh4 Bg5 Bf3 Re7 Bg2 Bh6 Bf6 Bg5 Qec6 Qd5+ Qbb3 Be2 Q6c4 Qc5 Ba8 Bh4 Qe4 Ba6 Qbb7 Bd3
q7/RBqQNr1k/3r3b/1b6/bQQp1BpN/1nbP2pQ/2QP4/1K1N1n2 w - - 0 1 illegal: No proof kernel
n4n2/Rpr1k3/B2NrbB1/p1Rq1qQr/PR2BB1P/B5Qr/p7/1b2K3 w - - 0 1 illegal: No proof kernel
K1r2bN1/1B2rrB1/BBNq1p2/1Q2P2b/n6r/Q1N1R1Bq/1p2nP1p/4k3 w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 a4 gxh4 Ra3 Ne7 Rb3 Bg7 axb5 Bf8 b6 Ng8 b5 Bg7 Rb2 Bf8 Rb4 cxb4 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 c4 h5 b7 a5 g3 f6 b6 b3 e6 h3 c5 h2 c6 a4 c7 b2 e7 a3 e8Q a2 Be3 a1R Bc5 h4 Qd3 h3 e4 Na6 b8B Ra7 b7 Nh6 Nc3 Rc1 Bb6 Nf5 Nge2 Rh4 Nd4 Nc5 Nc6 Nd4 Qe3 d6 Ba6 Na4 Re1 h1Q Qe5 Bd7 c8B Ne2 Qc5 Kf3 g4 h2 g5 Be8 g6 Qg2 g7 Qh3 g8N Bh5 Qa3 Kg2 B8c7 Qdd7 b8B Qe7 Kc4 d5+ Kb5 d4 Bcb7 d3 Bd6 d2 Ka5 d1R Qb5 Rd2 Bdc5 Qd8 Bg3 Rd7 e5 Rf7 Be3 Qd2 Bh6 Qd6 Bg7 Kf3 Ba8 Rae7 B8b7 Nd4 Re4 Ne2 Re3+ Kg2 Bc7 Kf1 Bd8 Nc5 Kb6 Ke1 Ka7 Na4 Ka8 Rc2 Bb6 Rc1 Na2 Rc5 Nc3 Rcc4 Nd8 Rcc7 Nc6 Rc8+
1nr1Bn2/p2bB3/rR2p2B/4R1p1/2R1P1n1/Q6q/Qq1nn1PR/K1R1Nk2 w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 f5 h4 g6 h5 Nc6 h6 Bg7 Nc3 Nb8 hxg7 f4 d4 cxd4 Nd5 Ba6 Ne3 fxe3 Qd2 Bb7 Qd1 Bc8 b4 Kf7 c4 Kf6 f4 h5 b6 d5 b7 g5 c5 e2 Kd2 e1N b5 d3 Kc3 d4+ Kb2 d2 c6 h4 b6 d3 f5 Ke5 f6 Kf4 c7 Kg3 f7 Kf2 f8B h3 Qc2 h2 Qc3 Qd4 Nf3 Bd7 c8R Rh6 Rc4 Nf6 g8Q d1N+ Ka2 d2 Ba3 Rg6 Rc1 Nh7 Bh6 Nf8 Ka1 Ne3 Bc5 d1Q Qf7 Q4d3 Qa3 Q1d2 Qd5 Rc6 Bb4 e6 Be7 Ng4 Qda5 Na6 b8R Rd6 Rbc8 Nb8 b7 Ra6 R8c5 Q2e2 Re5 Qb3 Nd4 Qh3 Nc2 Nf3 Ne1 Qc2 Qa2 Nd2 Q5a3 Qcb3 Bd3 Qb6 Bc2 Ke2 Ba4 Qbb3 Rf1 h1N Rg1 Ng3 Rh1 Qb6 Rh2 Kf1 Bb5 Ne2 Ba4 Nc6 b8R Qf2 Rbb5 Rc8 Rb6 Nb8 Bc6 Qf6 Bb7 Bb5 Bc6 Qf2 Be8 Bd7 Rd6 Qb6 Rdc6 Qb4 Rb6 Qb2+
1NBRn2n/1Bpn2N1/1N6/Q1B5/1bpppqbN/1NP2r1r/2QKP2k/7b w - - 0 2 illegal: No proof kernel
1b2k2n/1RB2p1q/2P1q3/n4br1/2rpQRR1/1B1P1p1Q/2p1nQ1R/1K3NR1 w - - 0 1 illegal: No possible last move, all moves rejected
k5K1/qp2Q2R/r3R3/4pP1p/1N5q/1p1Qb1B1/qPR2r1N/n1nQQQ1b w - - 0 1 legal: proof: e4 d5 h4 f5 exf5 g5 c4 gxh4 cxd5 a6 Bb5+ axb5 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 c4 f4 e6 g4 h3 d4 h2 a4 c3 f6 h6 f7 c2 a5 b4 a6 b3 g5 Bc5 f8Q Rh7 d6+ Kb6 d7 Ka7 g6 Bb6 d5 Be3 g7 Bc5 d6 Qb6 d8Q Bd7 Qde7 Be3 Nf3 Bc5 Na3 Nf6 g8Q Be3 Qg3 Nh5 Qge1 Bc6 d7 Ng3 Kf6 e5 d8Q Ne2 Q8d3 Rf7+ Kg6 Rf5 Kh7 h5 Kg8 Qa5 Rg1 h1Q Rg7 Qc5 Rh7 Qh4 Nh2 Bh1 Bd2 c1Q Nc2 Rf6 Nb4 Nc6 Bc3 Qd2 Rc1 Ncd4 Rc2 Qc1 Bd2 Qa1 Bc1 Qa2 Bd2 Kb6 a7 Nc1 Bc3 Rc8 a8R Rcc6 Rd8 Ka7 Rd6 Ra6 Re6 Qb6 Qff7 Ka8 Bd2 Qa7 f5 Rg6+ Qg7 Rg1 Qg2 Rf1 Qh3 Rf2 Qhf1 Bh6 Bf4 Bg5 Rc3 Nc2 Bg3 Na1 Rc2 Be3
2r2b1q/Q2bQnRq/Rp1r2Np/1p1R2n1/N1N1K3/1P2P3/B1r2pN1/4N2k w - - 0 1 legal: proof: h4 d5 c4 e5 cxd5 g5 hxg5 Bd7 f4 exf4 b3 Na6 Bb2 Nb8 Bd4 Bc8 Bb6 axb6 Kf2 Kd7 Kf3 Kd6 g4 Ke5 d4+ Kd6 a4 f5 g6 c5 e3 c4 a5 b5 g5 c3 a6 h6 g7 c2 g6 c1Q a7 Qa3 Nd2 Nf6 g8N Qb6 g7 Qc6 Nc4+ Kd7 Bd3 Qb2 Ra6 Qc3 Qa1 Qc7 d6 Ke6 d7+ Kd5 d8N Bd7 Rh5 Ne4 Bb1 Nc6 Ba2 Rc8 Ne6 Nd8 a8N Nf7 Rg5 Qb6 Rh5 Qa7 Rg5 Rc6 Rh5 Rd6 Nab6+ Kc6 Na4+ Kd5 Nh3 b6 Nec5 Qc7 Nd3 Qa7 Ne1 Neg5+ Kg2 Ke4 d5 Qd4 Ne7 f3+ Kf2 f4 g8R Qg7 Ng6 Qh7 Rg7 Qb8 Kf1 f2 Ke2 f1R Kd2 f3 Nhf4 f2 Nfg2 Kf5 Kd3 Kg4 Kd4 Kg3 Kd3 Nh3 Ke4 Kh2 Re5 Kh1 Rh5 Rf6 d6 Qa8+ Rd5 Qd8 Nc2 Rc1 Nce1 Qa8 Ra7 Rc2 Ra6 Bc8 d7 Rd6 d8Q Bd7 Qc7 Qd8 Qe5 Qf6 Qa7 Nhg5+ Kd4 Be7 Kd3 Rc8 Qe4 Bf8 Qe7 Ne6 Ke4 Qc3 Rg8 Qch8 Rg7 Neg5+
1BnN2bk/1p3RrN/QR1N2p1/1p6/r1NQ1K1n/QP1q1q2/pN1bP3/1q6 w - - 0 1 illegal: No possible last move
2r1Q3/q1QqbNn1/2b5/1P4pK/p1RpR3/4R1qp/PRB2r1n/k2NQR2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 h4 g5 hxg5 f6 g6 Ba6 g7 Bc8 g4 Bc5 g5 Bd6 g6 Bf8 Bg5 fxg5 b4 Ke7 e4 Ke6 Ke2 c5 Kf3 a5 Kg4 d5 f4 d4 b5 a4 Qe1 c3 Rh3 c4 Kh5 c2 Nf3 c1Q Bd3 c3 Bc2 Nh6 g8R Ng4 g7 Qa3 Rh2 Bc5 Re8+ Be7 g8R Nc6 Rf2 Bd7 f5+ Kf7 f6 Ke6 f7 Rc8 f8R Nh2 Rf4 Qb6 Rg4 Qa7 Re2 h6 Rgg2 Nd8 Re3 Bc6 Rf2 Kd7 e6+ Kd6 Ne5 Kc5 Nf7 Kb4 e5 Qb3 Rg6 Rf8 Rgf6 Qd5 R6f4 Qdd7 Rfe4 Bf6 e7 Ne6 Rd8 Kc4 e8Q Be7 Kg6 Ng7 e6 h5 Rf1 Qd6 Qd7 h4 Qc7 h3 Rd7 Qg3 Rd5 Bd6 e7 Kb4 e8Q Be7 Rdf5 Kc4 Rc5+ Kb4 Nd2 Ka3 Rc4 Kb2 Rc1 Bb4 Rd1 Be7 Nb1 Ka1 Rd2 Qf2 Bd3 c2 Nc3+ c1Q Rb2 Qg3 Nd1 Qc3 Bc2 Qb3 Nd8 Rf2 Nf7 Qa3 Kh6 Q3c5 Kg6 Qf5+ Kh6 Qd7 Kg6 Nf5 Kh5 Ng7+
3nb1N1/1p2q1rP/1r2B1Rb/1Qp1p1q1/QR3R2/KNn3kp/1PR3N1/2n1R3 w - - 0 1 illegal: No proof kernel
1n1Q1B1R/1p3Qq1/Np1prpK1/pn1N4/b2kNb2/1P4R1/2PN2n1/rR3N2 w - - 0 1 illegal: No possible last move, all moves rejected
k2r1b2/p1pnBq1R/qB1N2p1/PK4Q1/1ppr3Q/4Q3/n1PQb3/N1QB4 w - - 1 2 legal: proof: e4 f5 exf5 h5 g4 d5 a4 Qd6 b3 Qf6 Ra3 Qb2 gxh5 Be6 b4 Bc8 Rc3 Qxb4 Rc5 Qb2 Rc4 dxc4 d4 Kd8 Kd2 e5 f4 b5 h4 g6 h6 e4 f6 Bb7 f5 Kc8 f7 Qb3 h7 Qg3 h5 e3+ Kc3 e2+ Be3 e1Q+ Qd2 Qgf2 d5 Qf3 a5 Ne7 Kb4 Qef2 f6 Qh2 h6 Qhf2 d6 Qf5 d7+ Kd8 Bb6 Bc8 Na3 Qe6 Be2 Qef5 Nf3 Qe6 Bd1 Qg3 Nd4 Bb7 Nb3 Bc6 Na1 Rg8 h8Q Bg7 f8B Bf3 f7 Qf4 h7 Be2 Kc5 b4 Kb5 Bh6 Qb2 Nd5 h8Q Qf1 Bfc5 Bf8 Qbc1 Rg7 Qhh6 Rh7 Qhf4 Rh4 Qfe3 Rd4 Rh7 Qf4 Nb1 Qff6 Nc3 Qg7 Bd6 Qef6 Ne4 Nc3+ Kc5 Na2 Kb5 Qf3 Bdc5 Qgf6 Nd6 Qb7 Qg5 Qa6+ Ka4 Ke7 d8Q+ Ke6 Qh4 Kd5 Qe3 Qf2 Qdg5+ Kc6 Qed2 Nd7 Qge3 Be7 f8Q Rd8 Qff4 Bf8 Qfg5 Qf1 Nc8 Kb7 Be7 Ka8 Nd6 Qc8 Kb5 Qf7 Qeh3 Qb7 Qhe3 Qa6+
1qbN3k/2p5/1b3p2/4bB1p/B1NpN3/rbPP2Qr/pB1KBQR1/4nB2 w - - 0 1 legal: proof: b4 g5 g4 e5 f4 b5 fxe5 Nf6 a4 bxa4 h4 Nc6 h5 Ne7 Rh4 Ng6 hxg6 Bd6 Rh1 Bc5 Ra3 Bd6 Rf3 Ng8 Rf4 gxf4 g5 Bf8 e4 d5 c3 h5 e6 a5 g7 d4 e7 a3 g6 f3 e5 f6 b5 a2 b6 a1B b7 a4 b8N a3 Qc2 a2 Rh2 Ra4 Bb2 Bf5 Rg2 Ra3 Nh3 Nh6 g8B Ng4 g7 Nh2 Bgc4 Rg8 Nc6 Bc8 Bce2 Kf7 Nf2 Qe8 Ne4 f2+ Kd1 Nf3 d3 Ne1 Nbd2 Qd8 Bc1 Bb2 Nc4 Be6 Kd2 Qb8 Ng5+ Kg6 Ne4+ Kh7 e8B Bc5 Nd8 Bb6 Ba4 Re8 g8B+ Kh8 Bh7 Rg8 Bf5 Rg3 Nc6 Rh3 Nd8 Bf7 e6 Bg8 e7 Bd5 Rg3 Be6 e8Q+ Bg8 Bg2 f1B Qe5 Bf7 Rg7 Be6 Qg3 Bc8 Bef3 Be2 Bf1 Bd1 B3e2 Qb7 Qb1 Bb3 Qc2 Qb8 Be8 Ra5 Ba4 Ba3 Bb2 Bd6 Qf2 Ba6 Rg2 Bc8 Qg3 Be5 Qc1 Nc2 Qce1 Ra6 Qef2 Ne1 Bc6 Ra3 Bcd7 Bc5 Ba4 Bb6
6R1/q3r3/1R1P1Q2/1N1b1R1K/4R2r/Pp1B2br/1R1qnBRn/1Rn2k1b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 h4 Kd4 f4 g5 d6 c5 d7 b5 a3 e5 f6 b3 h6 e4 h7 b2 f7 e3 f5 e2 h5 Kd3 f6 c4 h6 b4 Rh2 c3 Nf3 b3 Rg2 c2 Nc3 b1B Nh4 Bd6 f8R Bg3 f7 Nc6 Nb5 Ra4+ Kh5 g4 Re8 Bb7 f8R Nd4 Rf5 Bd5 Re4 Rb4 Bb2 c1N Ra2 Qa5 d8R Ra4 Rb8 Nf6+ Kg6 Qa7 Rb6 Re8 h8R Re7 h7 Rc4 Rg8 Rb4 Rgf2 Rc4 Bh3 e1Q h8R Nde2 Rg2 Qf2 Qf1 Ra4 Ree5 Rf4 Bd4 Qe1 Rh6 Bc4 Rfh5 Rf3 Nf5 Bf4 Rbe6 g3 Bg4 Re3 Rg1 g2 Ra1 Kc2 d3 Kd2 Rb6 Ng3 Be2 Ng4 Rg5 Bc2 Rb1 Rf3 Rh4 Nh2 Rhg4 Bd1 Re4 Bc7 Qf2 Re3 Rf1 g1R Nh4 Rg2 Qf5 Rf2 Qf6 Be5 Rg1 Bb8 Bf1 Bf3 Rf5 Bh1 Bc5 Qd1 d4 Ke1 d5 Rf3 Kg5 Be5 d6 Bd5 Bd3+ Kf2 Ra8 Qc2 Rd1 Nge2 Rd2 Kf1 Kh5 Qd1 Ra2 Qd2 Rg2 Rf2 Rab8 Rh3 Rbg8 Bg3 Rab2 Rf4 Bf2 Rfxh4+
8/2q1P3/1R2q2P/b3rRN1/2bq1Qrn/k2rRRpb/4RRp1/NK1R2B1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Ra5 f4 Bh3 Nc6 Ra4 Nce7 Ra1 Nf5 gxf5 Nh6 Bg4 hxg4 Qc2 Ng8 Qa4 Kd7 Qd1 Ke8 e4 Kd7 b4 Kd6 d4 g5 Kd2 a5 Kc2 c5 h4 f2 h5 f1R b6 f3 b7 g3 b8R f2 b5 c4 e5+ Kd7 f6 c3 e6+ Kd6 f7 g2 b6 g4 b7 a4 e7 a3 h6 a2 Nd2 g3 Rh5 Ra7 Nh3 Qa5 Qf3 Qa6 Ng5 Rd1 Nb3 f1B Be3 Rd3 Bg1 Bh3 Re1 a1Q Re2 Bg7 Rf8 Nf6 b8R Nd7 Qf4+ Ne5 Rb4 Qc6 Rb6 Rg8 Re3 Qa4 Kb1 Ra5 Na1 c2+ Kb2 Kd7 d6 Nf3 Re2 Re5 d5 Qd4+ Ka2 c1Q Re3 Q1c4+ Kb1 Qc8 Re2 Qd8 Re3 Kc8 d7+ Kc7 Re2 Qb8 d8R Nh4 Rc8+ Kd7 d6 Qe6 Rc3 Qc7 Rcb3 Rd2 Rbe3 Rd3 Re8 Bh8 f8R Rg6 Reb8 Bf6 Rb3 Kc6 d7 Kc5 d8R Bh8 R8b6 Rg7 Nf3 Rg4 Rhf5 Bg7 Ng5 Bf6 Ra6 Bg7 Rc3+ Kb4 Rb6+ Ka4 Rcc2 Ka3 Rf2 Rc3 Rd5 Bc4 Rce2 Rd3 Rc5 Ba6 Rc1 Bc4 Rd1 Qdd6 R5f7 Rf5 Qf3 Bc3 Qe4 Re5 R7f3 Bd2 Qf4 Qd4 Rf5 Ba5
b1nRb3/k1N2R2/2R2NrR/3b3q/2R1Rb2/1PpR2Bq/r2P2p1/1K3Qr1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Ra5 f4 Bh3 Nc6 Ra4 Nce7 Ra1 Nf5 gxf5 Nh6 Bg4 hxg4 Qc2 Ng8 Qa4 Kd7 Qd1 Ke8 e4 Kd7 h4 c5 h5 Kc7 h6 Kb6 b3 a5 h7 g5 e5 c4 f6 a4 f7 a3 d6 c3 d7 a2 e6 g3 e7 g4 e8R g2 Ba3 g3 Ne2 Be7 f8R Ra4 Rh4 Bg5 Rf7 Ka7 Re4 Ne7 Bd6 Rg8 h8R Rg6 Na3 Qe8 d8R Bb7 R8h6 Bd5 Bc7 Ba8 Rd3 Nc8 Qb1 f2+ Kd1 g1R+ Kc2 g2 Qf1 f3 Bg3+ Qd7 Nf4 Ra5 Nh5 Bf4 Rae1 a1Q Nf6 Ra6 R1e2 Qe1 R2e3 Qe2 Kb1 Ra4 Rd6 Ra5 Rc6 Ra4 Qe1 f1B Rd3 f2 Rec4 Qh5 b6+ Ka6 b7+ Ka7 Qe2 Qh3 Qd1 Be2 Qf1 Bf3 Rg4 Bd5 Nb5+ Kb8 Rh4 Ra2 Nc7 Ka7 b8R Rg7 Qd1 f1B Rg4 Be2 Qf1 Rg6 Rh4 Bg4 Re4 Bd7 Rec4 Nb6 Rd8 Be8 Rg4 Nc8 Rh4 Be3 Rhe4 Bf4
Bnb2k2/2b1p3/nrB5/5P2/b2Qq1p1/1K1PbBBB/5p2/1RNBn1BR w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 f4 d5 fxg5 f4 c4 dxc4 g4 b5 g6 h6 Nc3 Ra6 g5 h5 Nd5 Rf6 Ne3 Rf5 Ng4 hxg4 exf5 Qd4 Bd3 Qd7 Bf1 Qd8 h4 c5 a4 f3 a6 b4 a7 c3 a8B c4 h5 b3 a5 b2 g7 b1B a6 c2 h6 c3 a7 Nf6 g8B Bd7 h7 Nh5 g6 Bc8 g7 Qd3 Bb3 Na6 g8B Nf6 Ne2 Nd7 Bc6 Bh6 a8B Qe4 Bh3 Be3 Bgd5 Kf8 Bba4 Rg8 h8B Ndb8 Be5 Rg6 Bg3 Bb6 Ba3 c1N Bc5 c2 Bg1 Bc7 Bab3 Ba2 Rb1 Re6 Bba4 Bc4 Bb3 Bb5 d3 f2+ Kd2 Na2 Nc1 N2b4 Kc3 Rg6 Qe2 Rd6 Qe3 Rf6 Ne2 c1B Bd1 Nc2 Kb3 Ne1 Qd4 Be3 Nc1 Rh6 Be8 Rb6 Bec6 Qf4 Bdg2 Qe4 Bgf3 Ba4+
1q1Q4/1k1p4/1nrbp2P/1BR2NbB/1RBBBP2/1p1q4/1Kp2rB1/2n2B2 w - - 0 1 illegal: No proof kernel
q4nN1/R1B1rPRK/2p2pR1/2B2R1n/p1k1b3/p1P1r1Q1/R7/qq4RR w - - 0 1 illegal: No proof kernel
n1b2R1q/3q2rr/1R2K1nb/2RpBPr1/1R1P3Q/R1R3q1/1N3qk1/RN1n4 w - - 0 1 illegal: No possible last move, all moves rejected
1N1n4/5r2/1prPn1N1/1n1B1prk/nR3bN1/K2N1P2/3Qb1qr/B1NNN3 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 h5 gxh5 b5 axb5 Bf5 b6 Bc8 b4 Nf6 b5 Bd7 b7 Bc8 b6 Nbd7 b8N Ng8 b7 Nc5 Ra3 Na6 Rb3 Rh7 Rb2 Rh8 Rb6 cxb6 h4 g5 c4 f5 d4 Kf7 Kd2 e5 Kc2 g4 Kb2 e3 h6 Kg6 c5 e4 d5 g3 h7 e2 d6 e1R c6 e3 f3 e2 c7 g2 Nc3 Ne7 Ka3 Nc5 Na6 Ne6 b8N Kh5 Nc5 a5 Bb2 a4 Qd2 Rc1 Ba1 e1N Nd3 Ba6 c8N Nc6 Nd1 Qg5 Ne7 Ra7 Ng8 Bh6 Ne2 g1R Rh3 Rc4 Nec1 Qg2 Rh2 Be3 Nh6 Bf4 Ng4 Ncd8 Be2 Rf7 Rh3 Rhf8 h8N Rc6 Ng6 Rh8 N6e5 Rhh7 Nc4 Rh8 Nce3 Bc4 Nc2 Bb5 N3b2 Nd3 Ne1 Ndc5 Bc4 Rhh7 Ba2 Be2 Nbd3 Rh8 Bd5 Rh6 Kb4 a3 Rh2 a2 Ka3 Na4 Rh1 Kg6 h5+ Kg5 Rh4 Rhh7 Bg7 a1N h6 Nb3 Ba1 Rh8 h7 Nbd4 Kb4 Nb5 Kb3 Rg8 h8N Rh1 Ng6 Rh2 Rh8 Nbd4+ Ka3 Rgg7 Re8 Kh5 Re7 Rg8 Ra7 Rgg7 Ra5 Rg8 Rb5 Rgg7 Rb4 Rg8 Nh8 Rg5 Ng6 Nb5+
3b2k1/5NPq/4N3/1N2NB1b/qrnp1Rp1/r1pQq3/pBKP2NN/3n1N2 w - - 0 1 illegal: No proof kernel
N2k1bNb/3Nr1R1/1Pq3K1/1bb2nb1/3B4/q1P1Qn2/1r1Q4/1N2QR1R w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 axb5 f5 exf5 Ba6 Ne2 Bb7 Ng1 Bc8 gxh5 a5 b4 d3 bxa5 Kf7 c3 Ke8 Bg2 Ra6 Bd5 Ra7 Bb3 Ra8 Bc2 dxc2 Kd2 e5 Ke3 g5 Ke4 d6 h4 g4 f4 g3 a6 g2 b6 Qf6 h6 Qd8 f6 Qc7 h7 Ra7 f7+ Ke7 h5 Nh6 f5 Bd7 f6+ Kd8 Qe1 Bb5 Nh3 g1B Be3 c1B Bd4 Nc6 Nf2 Bg5 Ng4 Nf5 h6 Rg8 h8Q d5+ Kf3 Qc8 h7 Re7 Nh6 e4+ Kg4 e3 Kh5 e2 a7 Ne5 a8N Nf3 Ra7 Qc6 Qg7 Bh2 h8Q Be5 Qgh7 Rg7 Ng8 Rg6 Qd2 e1B Qh6 Bf2 Rb7 Rg7 Qe1 Rh7 Kg6 Bg1 Qh2 Rh3 Qhe2 Rh2 Qe3 Rb2 Qh2 Bf2 Ra7 Bg1 Qhd2 Bf2 Bc5 d4 Rc7 d3 Bd4 Bd6 Ra7 Bc5 Rb7 Bg3 Ra7 Bgd6 Rb7 Bg7 f8N Be5 Nd7 Bf8 Qg2 d2 Qh2 d1Q Qhd2 Bed6 f7 Qb3 Ra7 Bg7 Rb7 Bh8 f8R+ Re8 Rf7 Qa3 Rg7 Qd5 Rc7 Bf8 Rc6 Re7 Rf6 Nd6 Rff7 Qc6 Rf4 Ng1 Rf2 Nf3 Rff1 Nf5+
2r2KQN/PQP1Rn2/p3BbrN/QNb5/2B3b1/Bq6/1r4nk/1B2n3 w - - 0 1 legal: proof: f4 h5 b4 c5 bxc5 e5 d4 exd4 g4 b5 gxh5 f5 e4 a6 a4 Kf7 c6 Ra7 e5 Ke8 Ra3 Nf6 Re3 Ng8 Re4 fxe4 f5 e3 axb5 e2 c7 Rh7 b6 Rh8 bxa7 Bb7 Kd2 e1R c8B Bc6 Bb7 Re3 Bc8 Rb3 Bb7 Rb5 Ba8 Bb7 Ke2 Bc8 Ke1 Rb7 Kd2 Kf7 Kd3 d5 c4 g5 h4 g4 c5 g3 e6+ Kf6 h6 Ke5 e7 g2 e8B Qd7 h7 Ne7 h5 Bh6 f6 Nbc6 f7 Qe6 f8Q Rg8 h8Q+ Bg7 h6 Qh3+ Qdf3 Nd8 h7 Be6 c6 Nf5 Na3 Bf6 Qb4 Rg6 Bd7 Nh4 Ne2 g1B Qa5 Bg4 Qg8 Rb4 h8N Ng2 Nb5 Ne1+ Kd2 d3 Kc3 d2 Ba3 d1R Ned4 Bf2 Be6 Rb2 Nf5 d4+ Kc4 d3 Be2 Qg3 Rh7 d2 Nh6 Bb6 Qh1 Kf4 Kd5 Qb3+ Kd6 Kg3 Kd7 Rdb1 Ke8 d1N Kf8 Rc1 Re7 Ne3 Bd3 Rc5 Bb1 Rc4 Qe4 N3g2 Bb7 Rc5 Bc4 Kh2 Bc8 Rd5 Bf5 Rd7 Qed5 Bc5 Be6 Rc7 Qf3 Rc8 c7 Bh4 Qe4 Bf6 Qb7 Nf7+
2Rqr1K1/2rQ1R2/1nb3R1/4q2q/Bb2P1N1/4bpQQ/nR1P1N2/2N1k3 w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 g4 h5 gxh5 c5 a4 a5 bxa5 Nf6 Ba3 Ng8 Bb4 cxb4 axb5 Be7 Ra2 Bc5 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 f5 e4+ Kc5 d6 g5 d7 f3 Ke6 Kd4 Kf7 f2 h6 f4 b6 g4 h5 g3 a6 g2 a7 f3 h7 b3 b7 b2 h6 Be7 Ne2+ Kd3 Nbc3 b1Q Rg1 Nf6 Qe1 Ne8 Nc1+ Kc2 Bb5 f1Q Nd1 Nf6 Qg3 Nd5 Nf2 Na6 b8R Re8 h8N Bf8 h7 Bb7 Ng6 Nb6 h8Q Nb4 Ne5 Bc6 Kg8 Na2 Neg4 Qb2 Qhh3 Qe5 Rb7 Qd1 Rb1 Rc8 a8R Rc7 Rc8 Qf1 Rb3 Qe2 Ba4 Q2b5 Ra7 Qh5 Rb7 Qbe5 Ra7 Qdf6 d8Q Qfd6 Rh1 g1B Qd7 Qde7 Rh2 Q7f6 Rg2 Qd8 Nfd3 Kd1 Ndf2+ Ke1 Rb2 Qee7 Ra5 Qd6 Rf5 Qe5 Rf7 Bh2 Qgh4 Bf4 Q4g3 Be3 Nf6 Kf1 Qf4 Na8 Rg6+ Ke1 Qfg3 Nb6 N6g4 Bb4+
7b/rP1B4/QB1Q1p2/2R5/KRnR4/P2b1Rbn/1rq1NB2/Qr3kq1 w - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 d5 cxd5 Rh7 gxh5 Rh8 Nh3 c5 Qb3 b5 Qd1 a5 Na3 Qc7 Nc2 Qd8 axb5 a4 Ng1 a3 Nb4 cxb4 bxa3 Bf5 Qa4 Bh3 Qd1 Bc8 e4 Ke7 d4 Kf6 Kd2 Kg5 Kc2 Kh4 Kb3 g5 e5 f3 h6 f2 b6 g4 e6 g3 b7 g2 d6 Rh7 d5 Ra6 e7 Nf6 e8Q Bg7 d7 Qe7 d8R Qe4 d6 Nc6 d7 Rh8 h7 Rf8 h8R+ Qh7 Ne2 Kh3 Rb1 Ng4 Qe6 Ra7 Qdd6 Ne5 Be3 Nc4 Rg1 Re8 Rf8 Bh8 Qa6 Qe4 Ka4 b3 Qd6 b2 Rc1 b1R Bd4 Nce3 Rc5 Nc4 Be3 Nge5 Rh1 Nf3 Bd4 Ng1 Be3 Kg4 h4 Kf3 h5 Nh3 h6 g1B h7 Bh2 Rg1 Qf5 Rg4 Bg3 Rd4 Re5 Rde8 Qg6 d8B Bf5 Bb6 Bd3 Rec8 Re4 Rb5 Re5 Rb4 Rb5 Rc5 Rb2 Bg5 Rb1 Bh4 Ke3 Bg2 f1Q Bc6 Kf2 Be8 Qg1 Bd7 Bf6 h8Q Kf1 Bg5 Rb2 Be3 Bg7 Bf2 Qf5 Qhh6 Bh8 Qd2 Rb1 Qb2 Qg6 Qa1 f6 Rg8 Qe4 Rgg5 Qc6 Rgf5 Qe4 Nc1 Qe2 Rf3 Qc2+ Rb3 Qb2 Ne2 Qc1 Rc3 R5b2 Rb3 Qc3 Rb4 Qc2+
4kb2/4r3/3P1bqb/2rQ2PR/NnQ1B1Q1/1BN2pNn/B1Q2pK1/2n5 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 e5 hxg5 d4 f4 d3 f5 Ba6 Ra3 Qd6 cxd3 Qc6 d4 Qd7 d5 Bc8 Rf3 Qd8 Rf4 exf4 Bb2 Ke7 Bf6+ Kd6 e3 Be6 fxe6 Nd7 e7 h5 g4 h4 e4 Rb8 Bd4 Rh5 Bf2 Ra8 Bg3 Nb8 e5+ Kd7 e6+ Kd6 Qb3 hxg3 Qd1 Rh8 e8B Ke7 d4 f5 b6 a5 b5 c5 g6 a4 d6+ Kf6 e7 f3 g5+ Kg7 d7 a3 d5 f4 b7 c4 b6 g2 Kf2 a2 Rh5 a1B Bd3 c3 Be4 c2 Nc3 c1B Bf7 Ra5 e8Q Nh6 Nge2 g1N Ng3 Bca3 Qe6 Qe8 d8Q Na6 b8N Rh7 b7 Nb4 Nd7 Nf5 b8Q Rc5 Nb6 Nd4 Qc2 Nde2 Nba4 Nc1 Qbc7 Nh3+ Kf1 f2 Qg4 Qe6 Kg2 B3b2 d6 Qf6 Qa8 Qf5 Na2 Bf6 Qd5 Bad4 N2c3 Qe6 Be8+ Kg8 Bc6 Re7 g7 Kf7 Bb7 Ke8 g8B Bde5 Ba6 Qf7 Bc4 Qg6 Ba2 B6g7 Qdd3 Bd4 Bgb3 Bdf6 Qd5 Bh6 Qcc6+ Rd7 Qa6 Re7 Qac4 f3+
R5nn/nk1r2NB/1P1q1b2/1N4p1/1N2R3/nQQP2rQ/1K2p3/3R1R1b w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 a4 exf5 a3 Bb2 axb2 a4 bxa4 b5 a3 Nc3 b1N Nxb1 Ba6 Ne2 Bb7 Ng1 Bc8 f4 Kd7 h4 c5 h6 Kc7 d6+ Kb6 f6 g5 h7 e5 d7 c4 f5 a2 f7 c3 h5 c2 h6 c1N f6 e4 Nh3 e3 Nf2 Kc7 b6+ Kb7 Na3 Ra7 Rh4 Bb4 f8R Ra4 f7 Nf6 Qb3 Ra5 Kd1 Rf5 Kc2 Ba5 Nd3 Rf3 Nb5 Bc3 Re4 Nc6 Nb4 Ne2 Rd1 Nf4 Bd3 a1N+ Kc1 Qe7 d8R e2 Kb1 Be6 Ra8 Rg3 Bc2 Rg8 h8Q Bd5 h7 Na7 Qg7 Be5 h8Q Ng6 Qh3 Nh8 Bd3 Nc2 Ka2 Bf4 Kb2 Na3 Bb1 Qd6 Bd3 Nd7 Qgc3 Rg7 Re3 Rf3 Bh7 Rg3 d3 Bh1 Re4 Be3 Rfe8 Bd4 f8N Nf6 Ne6 Ng8 Rf8 Rf7 Ng7 Rd7 Rff1 Bf6
K5B1/p3p3/k1pP1r1N/2q3N1/nQ1P2qB/QQ1q4/2B2Q1r/b2bR2N w - - 0 1 legal: proof: a4 h5 e4 d5 exd5 b5 b4 h4 c4 bxc4 f4 c3 f5 h3 f6 g6 Be2 Bg7 fxg7 Nc6 gxh3 Nd4 h4 Nb5 axb5 Bd7 h5 Bc8 Ra6 g5 Rg6 fxg6 h3 Qd7 h4 Qd8 Kf2 Kd7 Kf3 g4+ Ke4 g3 d4 g2 d6 g5 Kd5 c2 b6 g4 h6 g3 b7 Qf8 b8Q Kd8 Kc6 Qf1 h5 Nf6 g8B Qf5 b5 Rh7 b6 Qe5 b7 Rh8 h7 Qg5 h6 Qe5 Qd3 Ng4 Qa3 Qh5 Nf3 g1Q Bg5 c1B Bd3 g2 Bh4 Nf6 Nc3 Qf1 Ne2 g1Q Ng5 Bb2 Bc2 Qgg4 Ng3 Qd3 Re1 Nd5 Nh1 Nc3 Be6 Rf8 h8Q Na4 h7 Bc3 Qf6 Ba1 Bg8 Rf7 Qf2 Rf6 Kd5 Kd7 h8N Kd8 Nf7+ Kd7 Ke5 Kc6 Nh6 Kb6 Kd5 Ka6 Kc6 Be6 Qc8 Ba2 Qe6 Bb3 Qee3 Raf8 b8Q R8f7 Qbb4 Rh7 Bb1 Bd1 Bc2 Rh8 Qe6 Qgf5 Qeb3 Qc5+ Kd7 c6 Kc8 Rh7 Kb8 Qg4 Ka8 Rf3 Nf5 Rh5 Nh6 Rf6 Bg3 Rh3 Bh4 Rh2
1QN5/2pb2R1/4RbK1/3bNQQp/bPN3nR/1kP1Bnr1/5rpR/8 w - - 0 1 legal: proof: d4 a5 e4 b5 a4 f5 axb5 e5 exf5 a4 dxe5 Qf6 b4 Qd8 Bc4 Qg5 Bb3 Qd8 f4 axb3 g4 Nf6 g5 Ra7 g6 Ng4 h4 Qe7 h5 Kd8 f6 Qf7 gxf7 Ra8 h6 Nxh6 f5 Ng4 Rh3 Nh2 Rh4 Ng4 Rh1 Nh2 Kf2 h5 Kg3 g5 c3 d5 b6 Kd7 e6+ Kc6 b7 Kb5 e7 Kc4 e8N b2 Qg4+ d4 Nd6+ Kb3 Nd2+ Kc2 N2c4 b1B Nf3 d3 Be3 d2 Ra2+ Kb3 Nfe5 Nf3 Rh4 d1B Rah2 Nc6 b8Q Bb7 Nc8 Bc5 f8Q Rg8 f7 Be7 f6 Bf5 Qf4 g4 Qg5 Ra3 Kf4 Bd7 Ke4 g3 Kf4 Be8 Kf5 Bd8 Qc5 g2 f8R Ra2 Rf7 Rf2 Rg7 Bd7+ Kg6 Ba8 f7 Bf6 f8R Bb7 Nf7 Bc2+ Qcf5 Nce5+ Kh7 Bbc6 Re8 Ng4 Re6 Ba4 Nfe5 Be4 Kg6 Bec6 Na3 Bd5 Nac4 Re2 Qgf4 Nf2 Kh6 Re1 Rf7 Rg3 Q4g5 Rf1 Rg7 Ng4+ Kg6 Rf2
Bb1n1bRr/1b3P1r/2BQ1b2/1Q6/2qR2K1/1Nkn1q2/B3Q1PR/4r1bB w - - 0 1 illegal: Other
N2N1QQ1/P4q2/1N2n1Rb/1r1n1kbr/qRqR4/K3Pn1n/1B4R1/n3Q3 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 c4 f5 b4 axb4 Bh3 d5 cxd5 f4 Kf1 Qe7 Ke1 Bf5 gxf5 Qd8 Bg4 hxg4 d4 Kf7 Kd2 b5 Kc2 c5 Kb2 g5 h4 f3 a4 g3 f6 Kg6 h5+ Kf5 e6 b3 a5 f2 f7 f1Q a6 c4 d6 b4 h6 g4 h7 g2 e7 g3 e8R Nd7 a7 Qa5 d5 Qa4 Re4 Ngf6 Qd2 Nc5 d7 Bh6 d8N Rb8 f8Q Ne6 d6 Rb5 Nf3 g1N d7 g2 Ne5 Nf3 Nc3 g1N Nd5 Nh3 Rh2 Qf2 Rg2 c3+ Kb1 b2 Nb6 Qd4 Na8 Qc4 Qe1 Bg5 Qg8 Nd5 Reg4 Bh6 Rg6 Bg5 Ra3 Bh6 Rb3 Bg5 Kc2 b1N Bb2 Nbd2 Nb7 Bh6 d8R Bg5 Kc1 c2 Nd7 Bh6 Ndb6 Bg5 Rd3 b3 Rd4 Bh6 Rb8 Bg5 Ba3 Bh6 Kb2 c1B+ Ka1 Qcb4 Nd8 b2+ Ka2 Nb3 Rb7 Bcg5 e3 Na1 Rb8 Qe7 Qf8+ Qf7 Rb7 Rg8 h8Q Rg7 Qhg8 Rh7 Rc7 Rh8 Rc3 Qc4+ Rb3 Rh7 Bd6 b1Q+ Ka3 Qbc2 Be5 Bg7 Rb4 Rh5 Rdd2 B7h6 Bb2 Qd1 Rd4 Qa4+
2RnK1b1/3R4/nn2k1r1/q1Q4n/2b1r1q1/1NP1Q1P1/Q2qB2N/R2N1N1b w - - 0 1 legal: proof: g4 c5 f4 f5 a4 g5 e4 b5 axb5 Qc7 d4 cxd4 exf5 Qd8 f6 Bg7 f5 Bh6 Bf4 gxf4 Nf3 Bg5 Ng1 Bh4+ Kd2 Bg3 hxg3 Nh6 Ke1 Ng8 Ke2 Kf7 Kf3 d5 b4 h5 g5 a5 c3 e5 b6 d3 b5 h4 Kg4 h3 b7 a4 b6 e4 Ra3 d2 Bd3 d4 Ra1 f3 Qb3+ Be6 Qa2 d1N Be2 f2 Nd2 f1B Ngf3 d3 Nh2 Nh6+ Kh5 Na6 b8N e3 b7 a3 Nd7 Nb2 b8R Re8 Nc5 Nc4 Ncb3 Nb6 Rc8 Bc4 Rg1 Re4 Rd1 Bg2 Ndf1 d2 Ra1 d1Q g6+ Kf8 f7 Ke7 f8N Nf7 g7 Q8d2 Kg6 Nd8 f6+ Kd6 Nh7 Ke6 f7 Ra7 Nf3 h2 g8Q h1B f8Q+ Rf7 Qh8 Rf6+ Kg7 Bh3 Qc5 Rg6+ Kf8 Bg4 Qhd4 Bf5 Bd3 e2 Qe3 e1N Be2 Ng2 Nf6 Nf4 Ng4 Nh5 Nf2 Bg4 Ke8 Bh3 Qc2 a2 N3h2 B3g2 Rc1 a1Q Qa2 Qd4 Rc2 Q1d2 Nd1 Bh3 Qb1 Qa5 Qa2 Qe5 Rc1 Qg5 Ra1 Bf5 Rg2 Qg4 Rf2 Rh6 Rf3 Bh7 Rf7 Rg6 Rd7 Bg8
r3Q1br/1b1BBqP1/4Nn1k/N4Pn1/1Bq1q2r/1K1b1Q1q/7B/2N2RQ1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Nd7 h4 Ngf6 b4 Rg8 f5 Kf7 Ra3 Bh6 Rf3 Nb8 Rf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Rh8 Qb3 Ng8 Qc2 Nh6 Qd1 Ng8 d4 Kf8 Kd2 Kg7 Kc2 e5 b6 h5 b7 c5 b5 a5 b6 a4 d6 f3 d5 f2 d7 c4 d6 a3 Qe1 e3 Qe2 c3 Bb2 a2 Qb5 a1R Bd3 f1B Rh3 e2 Qb3 e1Q Rf3 h4 Nd2 h3 Ba3 h2 Bb5 h1B Bb4 e4 Nc4 e3 Ne2 Qe8 d8N Qf7 d7 R1a4 Nc1 e2 Na5 Na6 b8B Bb7 Bh2 Qh4 Bc6 Nf6 Ne6+ Kg8 d8B e1Q g7 Kh7 g6+ Kh6 g8Q Qh3 g7 Nc5 Qe8 Nce4 Bd7 Ng5 Bde7 Qe5 Qb1 Bd3+ Kb3 c2 Rf1 Qe4 Qa1 Bf3 Qd4 Bh5 Qg1 Bg6 Bbc5 Bh7 Bb4 Bba6 b7 Bg8 b8Q Bb7 Ne2 c1Q Qf4 Qc8 Qf3 Qc7 Nc1 Qc8 Bc3 Rd4 Bcb4 Qc4+ Kb2 Qed5 Ka3 Rh4 Ka4 Qce4 Ka3 Qc5 Kb3 Qcc4+
2K2kBN/r1P1n3/4bN2/1q3r1R/QrR1r3/5Rq1/Qr1nr1P1/1QR2b1N w - - 0 1 illegal: No possible last move
4b3/3q1Nrk/3NP1r1/n4N1b/2Q2BQr/qP2KB2/2q1nN2/1q1BQRr1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 exf3 Ra4 Bc5 Rf4 gxf4 g5 Be7 g6 Bg5 hxg5 Ke8 Kf2 Kf8 e4 Kg7 d4 f5 d6 a5 b3 c5 d7 h5 d5 a4 d6 a3 e5 a2 e6 a1Q b6 c4 b7 c3 Ne2 c2 Bh3 h4 Nec3 Rh7 Bg4 h3 Rg1 h2 Nd5 h1R Qe1 Nf6 Qc3 Nc6 b8Q Na5 Ne7 Qa3 Qbc7 R1h4 Qe1 Nh5 Qc4 Ng3 Rf1 Ne2 Nd2 Qe8 d8N Bd7 Nb7 Kh8 Bh3 Rg7 Bg4 Bb5 Ne4 Qd7 Be3 c1Q Bd2 Rag8 Bh5 Qc6 d7 Qc2 d8N Qc8 Bg4 Be8 Nbd6 Qd7 Be3 Rf7 g7+ Kh7 Bd2 Rf6 N8f7 Rg6 Bc1 Ng3+ Kg1 f2+ Kg2 Ne2 Bf3 Ng1 Bd1 Ne2 Kf3 Qaa4 Rg1 f1B Nf2 Bh3 Rf1 Qa3 Ng4 Bg2+ Kf2 f3 Bf4 Bh3 Ke3 Bg2 Nf2 Bh3 Qc6 Bg4 Qa6 Bh5 Qc4 Rh8 Nh3 f2 g8B+ Kg7 Bh7 Rg8 Rh1 f1R Nf2 Rf6 g6 Rg1 Ng5 Kh6 g7 Rg6 Qeb4 Rf8 g8Q Rf7 Qe1 Rfg7 Qf7 Rgg4 Rf1 Rg2 Qf6 Rg1 Qfd4 Qa7 Bh2 Qd7 Qg4 f4+ Kf3 Rf6 Be4 Rfg6 Ngf7+ Kh7 Nef5 Qaa4 Nd3 Qa3 Kf2 f3 Ke3 f2 Bf4 Rg3+ Bf3 Rg2 Rh1 f1Q Nf2 Qg1 Qec3 Qe1 Rf1 Rg1 Qa1 Qeb4 Qac3 Qaa2 Qd2 Qba3 Qe1 Qab1
1rkN1q1b/rR1q1N2/R4Q1N/R1N1Q2n/1Q4qq/7P/KP2Bn2/2r1r2r w - - 0 1 legal: proof: g4 d5 a4 e5 d3 b5 axb5 h6 Bg5 hxg5 c4 f5 cxd5 e4 f3 exf3 Nc3 f4 Nb1 Bf5 gxf5 Qf6 Nc3 Qd6 Nb1 Qd8 Kd2 Kd7 Kc2 a5 Kb3 c5 e4 c4+ Ka2 f2 e5 g4 d4 g5 d6 c3 f6 g3 e6+ Kc8 e7 g4 e8Q g2 b6 a4 d5 c2 f7 c1R h3 a3 Qd2 f3 Qde1 g3 Q1e4 Nh6 Ne2 g1R Q8e5 g2 Nd4 Ng4 Nc3 Qh4 Nf5 Nd7 Qb4 Ra7 Ne4 Bg7 Nc5 Ndf6 Nh6 Nh5 Be2 Rge1 Rf1 Rd8 f8Q g1Q Qff6 Qgg3 Rg1 f1Q Rg2 Nf2 b7+ Kb8 Rg1 Qgg4 Rg2 Qd7 Rg6 Qg1 Rg5 Bh8 Rg6 Qc7 d7 Qgg4 d6 Rf8 d8N Qcd7 Ndf7 Rd8 Kb3 a2 Rg5 Nh1 Rg6 f2 Rg5 f1Q Rg6 Qc7 d7 Nf2 Rg5 Re8 d8N Qd6 Rg6 Kc7 b8R Rf8 Rb1 a1R Rb7+ Kc8 Rg5 Qdd7 Rf5 R1a6 Ra1 Rd6 Ra4 Rdd1 Ra6 Qdd4 Rf3 Nd3 Qfe6+ Qd7 Ng5 Rf6 Rbb6 Qff2 Re3 Rf1 Ka2 Rh1 Rg3 Qff4 Rf3 Nf2 Rfa3 Rde1 R3a5 Rg6 Q6d6 Qf8 Ngf7 Rf6 Qde7 Rc6 Q7f6 Rcc7 Rbb5 Rcb7 Rbb6 Rb8 Rbb5 Qd2 Rb7 Qdd7
4nQn1/r2B3q/5Qnq/qQn1P1N1/R1K5/PB4qN/1Q1B2n1/N1rb3k w - - 0 1 legal: proof: b4 a5 f4 axb4 c4 h5 g3 f5 a3 d5 cxd5 e5 fxe5 f4 Ra2 f3 Rc2 Be7 Rc4 Bg5 Rg4 Bf4 gxf4 hxg4 h4 Ke7 d4 g5 Kd2 b5 Kd3 c5 e4 f2 h5 c4+ Ke2 b3 h6 b2 f5 c3 Kd3 g3 e6 Kd6 h7 c2 f6 b4 f7 b3 f8N g2 e7 g4 e8B g3 Rh4 Qa5 Qe1 Na6 Bg5 c1N+ Kc4 Nd3 Ne6 Nc7 Nc5 Ra7 Qd1 Bg4 Bc6 Ne8 Ne6 Nc5 Nd2 b1Q Bd7 b2 Nh3 g1Q Qb3 g2 Qb5 Bd1 Nb3 Qa1 Bc1 b1Q Bd2 Qh1 Be2 f1N Neg5 g1N Bd3 Qh2 Bc2 Qg3 Rf4 Qab2 Na1 Nf3 Bb3 Nh4 Rg4 Ng6 Rh4 Ke7 d6+ Kf6 d5 Qbe5 Rg4 Qe6 e5+ Kf5 Rh4 Nh6 Rg4 Rf8 h8Q Ng8 Rd4 Qe4 Qf6+ Kg4 Qf2 Qef4 Re4 Qf5 Qd4 Kh4 Qb2 Ne3+ Kd4 Kg4 Bc6 Nh4 d7 Rf6 d6 Bc2 Ne6 Kf3 d8Q Kg2 d7 Kh1 Qdb6 Qh6 Neg5 Qfh7 d8Q Neg2 Kd5 Ng6 Bd7 Rf1 Qbf6 Nd6 Ra4 Rc1 Qdf8 Ne8 Kc4 Bd1+
N4B1b/R1q5/2Q2Qr1/2RK2PQ/nb1p1q2/1b2NPQr/1k1rN1n1/q5R1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g5 fxg5 f4 g6 f3 exf3 Qc7 g5 Qd8 Bg4 hxg4 Kf2 e5 h4 Ke7 c4 Kd6 b4 a5 c5+ Kd5 c6 Kc4 h5 d5 h6 g3+ Ke2 d3+ Ke3 a4 g7 d2 h7 g2 b6 d4+ Ke4 a3 b5 a2 c7 Ra6 b7 Nd7 b8R Ne7 g8Q+ Nd5 b6 Bg7 b7 Rg6 Qe6 Nb6 Ba3 Na4 Qf6 Be6 c8N Ne3 Nc3 Qc7 Qc1 Kb3 Bf8 d1R Nge2 g1Q Nd5 Rd2 Qc6 Qc1 Rg1 Kb2 Ncb6 Ng2 Ne3 Bg8 Rc8 Bb3 Kf5 e4 b8Q Bc4 Na8+ Bb3 Ng4 e3 Ke4 Qf7 Qg3 Qc7 Nc3 e2 Ne3 e1B Ne2 Bc2+ Kd5 Bb3+ Qc4 Qf4 Rc7 Qc2 Rc1 a1Q Ra7 Rg8 h8Q Qc3 Qhh3 Rh8 Qhg4 Rh3 Q4h4 Bh8 Qh5 Bd1 Qca6 Qcc7 Rc5 Bb3+ Qc4 Rd1 Bg7 Bb4 Bf8 Bc2 Qb5 Rd2 Qbc6 Bb3+
1R2n2Q/4q1nr/N3P1B1/1p1bB2b/2r2b1k/q2Q1q1N/2P1B1KN/N2Q1n2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 h4 f5 e4 d5 a4 b5 a5 g5 a6 b3 e6 Kf6 e7 d4 e8N+ Ke7 e5 g4 h6 g3+ Kg2 d3 h5 f4 a7 d2 c6 b2 c7 Na6 h7 Nf6 h6 Be6 c8B Nh5 Ra3 Nc7 Rf3 Bd5 Nh3 Ng7 Bf5 Rc8 Nf6 Nce8 a8N Rc4 e6 Qa5 Ng4 Qa3 Nh2 Kf6 Nc7 Bd6 Bg6 Be5 Nc3 b1Q Na4 Qbb4 Be2 Qe7 Na6 Bb8 N4c5 Bd6 Qf1 d1B Nb3 Bb8 Na1 Be5 Nf2 Kg5 Nh3+ Kh4 Bb2 Bc7 Be5 Bb8 Kg1 g2 Kf2 Rf8 h8Q Rf7 h7 g1Q+ Ke1 Qgg5 Kf2 Bc7 Qf8 Bd6 h8Q+ Qh6 Re3 f3 Qfg8 Bc7 Qgh7 Bd6 Qe1 Bc7 Kf1+ f2 Rf3 Bb8 Kg2 Bd6 Bh5 Qhe3 Qd3 Bb8 Qed2 f1N Rg1 Rf5 Bg6+ Rh5 Kh1 Bd6 Rg3 Rh7 Kg2 Re4 Rf8 Rc4+ Rgf3 Bc7 Bc3 Bf4 Be5 Nc7 Rc8 Nce8 Rb8 Re4 Rf2 Ra4+ Bf3 Be2 Qd1 Rc4 Bfe4 Bh5 Bf3 Re4 Be2 Rc4+ Rf3 Qxf3+
K3Q2q/Q1Q2B2/P1Q1RPp1/1NR1n1R1/b1B1r3/5bqr/2nr2k1/1b2n1B1 w - - 0 1 legal: proof: f4 e5 c4 a5 Nc3 f5 b4 axb4 g3 d5 cxd5 Bc5 Ne4 h5 Nf2 Be3 Ng4 hxg4 fxe5 f4 Nh3 f3 Ng1 Bf4 gxf4 Rh7 Qb3 Rh5 Qd1 Rh8 Kf2 Kd7 Ke3 c5 Ke4 b5 d4 f2 a4 c4 h4 g3 d6 Kc6 h5 b3 d5+ Kc5 f5 c3 a5 c2 e6 g2 a6 b2 f6 b1B d7 b4 e7 b3 e8B g6 d6 b2 h6 Nc6 h7 Nb4 Nf3 g1Q Bf7 Qb6 d8Q Kc6 d7 Nh6 Qc7+ Kb5 d8Q Bh3 Qde7 Rad8 Qdd6 Qg3 Rg1 Ng4 Be3 Ne5 Bd4 Ba2 Re1 c1N e3+ Ncd3 Qdc6+ Ka5 Bc5 b1B Nd4 Bg4 Nb5 Bb3 Qa7 Bbd1 Qec7 Nc2 Bd4 Rde8 Kd5 Kb4 e4 Bgf3 Re3 Nde1 Bc4 f1R Rc3 Qf2 Rg5 Qg3 Bg1 Qb8 Kd6 Rf2 Re3 N5d3+ e5 Rd2 Kd7 Qa8 e6 Qb8 e7 Qa8 Nd4 Kc3 Re6 Ne5+ Kd6 Qb8 Kc5 Qa8 Kb6 Qd8 Ba2+ Kd3 Nb5 Ke2 Kb7 Kf1 Bc4+ N5d3 Rc5 Kg2 Rg5 Na1 Rc5 Ba4 Rg5 Nac2 Rc5 Rhg8 h8R Ne5 Rh5 Rh8 Rf5 Rh4 Rg5 Reh8 e8Q Re4 Re7 Rh3 Re6 Qe7 Kb8 Qf8 Ka8 Qh8
Nq2qkq1/NQ3B1p/1R1PQ2K/bP6/n6n/1bBr4/bQ2n2B/r1Q3N1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Bh6 Ra2 Qd6 Rb2 Qd7 axb5 Bg7 b6 Qd8 b5 Bf8 Rb4 axb4 Ke2 c5 Kf3 e5 Kg4 b3 Kh5 e4 f4 b2 d4 h3 g4 e3 f6 e2 f7+ Ke7 f5 e1N b7 h2 f6+ Kd6 g5 c4 g6 c3 g7 c2 Bf4+ Kd7 d6 c1Q d5 Ra7 Nd2 b1Q Nc4 Qe3 Qc1 Ne7 g8Q Nbc6 b8Q Nf3 Qb7+ Qc7 Be2 Ra1 Nb6+ Kd8 d7 Ncd4 Qg6 Qb8 Bc4 Ne2 Na8 Qa2 Bg3 Bg7 f8B Nh4 f7 Bc3 Qe6 Ba5 Bg7 Rf8 Bc3 Rg8 Bd6 Rg3 Bb3 Qe4 Bf4 Rd3 Kh6 Qee5 Bc4 Qh8 Bg3 Qe8 f8Q Qb3 Qff6 Qa2 Nf3 Qb3 Re1 h1B Ng1 Bf3 Qg7 Bh5 Rf1 Bf7 Rf6 Bg8 Bh2 Qa2 Qbc6 Bb7 Qa6 Nc8 Rg6 Bc6 Qb7 Nb6 Rf6 Na4 Qg2 Ng3 Qgb2 Bf7 Qh3 Ke7 d8N+ Kf8 Qe6 Bd7 Nc6 Ne2 Na7 Bc6 Qec8 Bd7 Rb6 Bde6 d6 Qb3 Bd5 Qc4 Qcd7 Qg4 Ba2 Bb3 Qdc8 Bfd5 Qe6 Qg8 Bb1 Rf3 Bg6 Rd3 Bh5 Ba2 Bf7 Bdb3
1QN1b3/2bPN2n/r2pn1q1/3bN1R1/5Q2/krQB2P1/qr2n3/N3BK1B w - - 0 1 legal: proof: e4 f5 exf5 b5 h4 g5 b4 gxh4 a4 Bh6 axb5 Nf6 Ra3 Bf8 Rd3 Ng8 Rxd7 e6 d4 Qg5 d5 Qf6 d6 Qg5 Rg7 Qd8 Rg3 Qf6 Rd3 Qd8 d7+ Ke7 Rd6 cxd6 f4 a5 c4 h5 c5 h3 c6 a4 b6 e5 b5 a3 c7 e4 f6+ Ke6 b7 a2 f7 a1Q b6 h2 Be2 e3 Nh3 h4 Bd2 Kd5 f5 Kc5 f6 Be7 f8Q Qe8 f7 Bd8 Ng1 h3 Nf3 Nc6 b8Q Ra6 b7 Nd4 Qg7 Ne6 f8N Qg6 Ne5 Nf6 Bd3 e2 Qa4 Qa2 Qf4 Nh7 Rg1 h1N Na3 h2 Nc2 Ng3 Na1 h1B Kf2 e1R Qgf6 Qf7 Nfg6 Ne2 Ne7 Rb1 Be1 Rb2 Kf1 Rg8 g3 Bc6 Rh1 Be4 Rh5 Qg6 Rg5 Re8 Qf3 Bd5 Q6f4 Bc4 Q3e3+ Kb5 Qc1 Ka4 Qc3 Rh8 Qa8 Rb3 b8N Bb7 c8B Bd5 Bb7 Bc7 Nbc6 Rb8 Na7 Ka3 Bc6 Rb4 Qb8 Rbb6 Nac8 Rb7 Qcd4 Rb2 Qc3+ R7b3 Be4 Bd3 Bh1 Bf5 Bb5 Bg4 Bd3 Bh5 Qc6 Qf6 Qc2 Be8 Qc3 Qg6
3n2Q1/3n4/n2Bp3/r2N1BNQ/1Nb3Q1/r2nb2b/2BPPq1n/k3N1RK w - - 0 1 legal: proof: c4 a5 a4 b5 axb5 g5 f4 d5 fxg5 Be6 cxd5 Bc8 g4 h5 b4 axb4 g6 Nf6 g5 Ng8 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Kf2 Kd7 Kg2 Kd6 h4 Kc5 h5 Kc4 h6 f5 d6 c5 d7 g3 b6 b3 b7 b2 h7 f4 g7 f3+ Kh3 f2 Kg2 Ra3 g6 Nh6 g8Q+ Nf7 g7 Na6 b8Q Qb6 Nc3 b1B d8N Bh3+ Kf3 e6 Qc7 g2 Qe5 Bd3 Nc6 Nd8 Nb4 Ra5 Qe1 Kb3 Ba3 c4 Qh5 Bc5 Ncd5 c3 Kg3 c2 Kh2 c1N Nf3 Bc4 Rg1 Nd3 Qb1+ Nb2 Qbg6 Nd3 Qgg4 Be3 Ne1 Qa7 Nc6 Ka2 Bd6 Ka1 Ncb4 Ndc5 Qge8 Ra3 g8B Nd3 Bf7 Rf8 Bg6 Rf5 h8N Qd4 Nf7 Re5 Ne7 Rea5 Ng5 Qc5 Qg8 Qa7 Rh1 g1N Ned5 Qd4 Bg2 Qf6 Bf5 Nf3+ Kg3 Qf7 Rg1 Nfe5 Kh2 f1N+ Kh1 Nh2 Bf3 Nd7 B3e4 N3e5 Bc2 Nd3 Bh7 Qf4 Bf5 Qf2
1k4K1/1rNn2B1/1b1rp1NQ/1P2BQ1B/r4R1N/n6b/qPb1Q3/3Q2bn w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 h6 Ra3 gxf4 g5 h5 Rg3 Kd7 Rg2 Ke8 Rg4 hxg4 Kf2 Kd7 h4 a5 d4 c5 h5 Kc7 h6 f3 Kg3 a4 Kh4 f2 Kh5 a3 Kg6 c4 Kf7 c3 h7 a2 d6+ Kb7 d7 a1R d5 c2 d6 g3 f6 g2 g6 e6 g7 R8a7 Nc3 Nc6 Nd5 R7a3 Rh4 Na5 Rf4 Rd3 Qe2 Ra4 Nf3 g1B Nc7 Kb8 Nh4 Bb7 Be3 c1N Bd4 Qc8 d8Q Be4 d7 Nc4 Be5 Bc5 Qf8 Bb6 d8Q Rd6 Bg2 f1B Bf3 Bd3 Bh5 Bc2 Qd7 Nd3 Qdd8 Ne7 g8Q Nd5 Qg6 Na3 Qf5 Bh3 Qh6 Nf2 Kg7 Rf8 h8B Nh1 f7 Nf6 Qd7 Rd8 f8N Qa6 Nfg6 Rc8 Qd8 Nd7 Kg8 Qa8 Bhg7 Qd5 Qdf8 Qa2 Qfd3 Re8 Qdd1 Rc8 Kh7 Re8 Qf5 Re7 Kg8 Nf8 Na8 Rb7 Nc7 Nd7
b1R5/3Pn2b/3b1BP1/b1qQB1K1/kNBQRr2/1p3br1/8/1Q1qRnR1 w - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 g5 hxg5 f5 cxd5 b3 exf5 c6 Na3 c5 Nc2 Be6 Nb4 cxb4 Be2 Bd7 Bf1 Bc8 Ke2 Kd7 Ke3 h5 Kf4 b5 d4 b2 a4 b1Q g4 b3 d6 Kc6 d7 h4 d5+ Kc5 g6 Kb4 g5 b2 g7 h3 g6 h2 a5 e6 f6 e5+ Kg5 e4 f4 e3 a6 e2 a7 e1B f5 Qc2 d6 b1B Bb2 Qe8 d8B Ne7 g8Q Nd5 d7 Qc5 f7 Rh3 f6 Qe2 Qg7 Ne3+ Be5 Ba2 Qb1+ Ka4 Nf3 b4 Nd4 Bb7 Nc2 Qd1 Bc4 Nf1 Rg1 Bd6 f8R h1B f7 Bhf3 Re8 Nc6 Bf6 Ne7 f8R Rd8 Rh8 Ba8 Rh4 Rb8 Re4 Rh4 Rc8 Rf4 Rc6 Rh8 Rc8 Rh2 Qh8 Re2 Qh4 Re3 Qf2 Rb3 Qd4 Ra3 Ba6 Bg8 Bc4 b3 Nb4 Ra2 Na6 Ba5 Nb4 Bc6 a8Q Bh7 Qa6 Ba8 Qb7 Qd2 Qbd5 Qc1 Qbd3 Qd1 Rc1 Rh2 Qc2 Rh3 Qb1 Qd3 Rce1 Qc2 Qg8 Qd1 Qgd5 Rg3+
4kB2/1NBn1r1n/QN6/2K4r/1rP1pb1Q/PR5r/1q2qQbq/1N4BN w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 g4 h6 f5 Ra7 a3 Ra6 Ra2 Ra8 Rb2 Qb6 Rb4 Qd8 Rf4 gxf4 g5 h5 Bh3 Rh6 Bg4 hxg4 Nd2 Rh7 Nb1 Rh8 Kf2 e5 h4 d5 c4 b5 c6 f3 Ke3 f2 c7 f1Q g6 e4 Kd4 b4 h5 b3 h6 g3 a6 b2 g7 g2 a7 Qd6 f7+ Ke7 h7 Qf3 Qf1 Qf2+ Be3 Qh2 Nh3 g1R Kc5 Nf6 g8Q d4 Qg6 Bh6 f8B+ Kd7 Qe2 d3 Bd6 d2 Bd4 Rf8 h8Q Nh7 f6 d1Q f7 Rg3 Qe3 Qfd2 Qf2 Nc6 Bf4 Ne5 Qa6 Rb8 a8N Rb4 Nb6+ Ke7 Rg1 Q1e2 Rg2 Rg5 Rg3 Rh5 Rb3 Bg4 Bde3 Bf3 c8N+ Kd8 Bd4 Bg2 Nd6 Qc2 Bg3 Bf4 Nb7+ Ke7 Qf3 Qc3 Bg1 Qcc2 Nf2 Rh3 Nd2 b1R Nh1 Qb2 Qf2 Rf1 Nb1 Rh5 Qg7 Rh8 f8B+ Ke8 Qf6 Rh3 Qd4 Rf3 Qf2 Rh5 Bh4 Rh3 Bg3 Rg8 Qh4 Rg7 Bd6 Rf7 Bc7 Bc1 Bf4 Bd2 Bh6 Bf4 Bf8 Nd7+
1qrqR3/b5B1/rB2p1b1/nr5Q/Q1PRn1b1/P4B1B/KNRr3k/4Q3 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 g4 h5 g5 g6 Nd2 Rh7 Ndf3 Rh8 Ne5 Nf6 fxg6 Ng8 Ng4 hxg4 f5 Ra4 Kf2 Ra7 Ke1 Ra8 Kd2 d5 h4 Kd7 c4 b5 Kc2 b3+ Kb1 b2 g7 g3 h5 g2 h6 d4 c6+ Kd6 h7 Ke5 a3 b4 c7 e6 f6 d3 f7 d2 g6 Kf4 Ra2 Kg3 Qa4 d1B Be3 Nc6 Nh3 g1Q Bb6 Bd6 f8B Qh2 Nf4 Bc5 Bh3 Bd7 c8B Ra6 Bb7 Be8 Nd3 Nf6 g8R Bg4 g7 Na5 Bf3 Ne4 Rd1 Bg6 Rd2 Bg1 Rc2 Bd4 Ra1 Bg1 Ka2 b1R Nb2 Rd1 Rac1 Rd2 Rd1 Rf2 Rd4 Rd2 Be7 Be3 Re8 Bf2 g8Q b3+ Kb1 Be3 Bf8 Bg1 Bg7 Be3 Nd1 b2 Ka2 b1R Nb2 Bf2 Qf7 Rg8 h8Q Bg1 Nd1 Rb5 Nb2 Bf2 Qh6 Rh8 Qe3 Rf8 Bf1 Qh8 Qe2 Kh2 Qe1 Qg8 Bh3 Qb8 Re7 Rc8 Re8 Qh8 Qf5 Qh4 Qc5 Qd8 Qh5 Nb7 Bc7+ Qd6 Rd5 Ba7 Rd4 Na5 Bb6 Qd8
2rQ2Qb/krn1bPR1/1qnNQ2R/1nN2N2/8/2P2RpQ/n1Bb4/3K1q2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Nh6 f6 Ng8 g3 Bb7 g4 Bc8 f4 h6 g5 Kf7 Be3 Ke6 f5+ Kd6 g6 Bb7 Bd2 Bd5 Bg5 Bf7 gxf7 hxg5 b4 Kc7 h4 Kb7 b6 d5 h5 a5 b5 Ra7 h6 e5 h7 d3 Ne2 d4 Na3 e4 Rg1 a4 Ng3 g4 Qe2 g5 Nc4 e3 Nd6+ Ka8 Rc1 Be7 f8R Nc6 f7 Nf6 Rg8 a3 f8N a2 Qf3 a1B Qd5 Ne8 f6 e2 f7 Rd7 Rh1 d2+ Kf2 e1B+ Ke2 Rc7 Nd7 d1N Qc4 Qb8 Qe6 Ba5 Rh5 Nc3+ Ke1 Bb4 Bd3 Na2+ Ke2 Qa7 Rf1 Qb7 Bf5 Qa6 Rf3 d3+ Ke3 d2 Ke2 Ra7 Rg6 Rg8 h8Q d1N Bd3 Ndc3+ Kd2 Ne4+ Kd1 Bd2 Qh6 Bh8 Qh7 N4f6 c3 Nd5 Bf5 Ndf6 Bc2 Nd5 Nb7 Nd6 Rh1 Nb8 Nf5 Rc8 Qg8 Bef6 Rhh6 Nc6 Rg7 Be7 Rd3 g3 Re3 g2 Reh3 g4 Rg3 Bh4 Rf3 Nc4 Nbd6 Na3 Nc4 Nd4 Nc5 Be7 b7+ Kb8 Qe1 g3 Qh1 Qe6 Qh3 Kc7 b6+ Kc6 b8Q g1Q+ Qf1 Qg2 Qe5 Nab5 b7 Ndc7 Qee1 Qh1 Qh3 Qf1 Ne5+ Kb6 b8Q+ Rb7 Qa8 Rd8 Qc8 Qc6 Nc4+ Ka7 Ncd6 Qb6 Qd7 Rc8 Qdd8 Qd3 Qe2 Nc6 Qe6 Qf1+
nQB5/N2P4/Q4P2/2n3kN/1R1b2N1/KRbpqq2/1rRN3n/2rbQ1n1 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 d6 c5 dxc5 d4 Bb7 d5 Ba6 Be3 Bc8 Bd4 cxd4 Kd2 Kf7 Kc1 Kf6 f4 a5 b4 g5 Kb2 e5 h4 c5 d6 d3 h6 a4 h5 e4 b6 e3 b7 e2 h7 e1N b5 g4 h6 c4 b6 g3 Ra3 g2 Nh3 g1N Rh2 Qd7 Nd2 Nc2 Nf2 Ne1 Bh3 Bg7 Rb3 c3+ Ka3 Nef3 Qe1 Na6 b8Q c2 b7 Nc7 Ng4+ Kf7 f6 Kg6 f7 Nf6 f8R Ne4 f5+ Kg5 Re2 Bc3 f6 Qf5 Rd8 Rg8 h8Q Nc5 h7 Nh2 Rde8 Bd4 R8e4 Qf3 Qa7 Rd8 Qa6 Rb8 Rg2 Bc3 Reb4 Na8 Qhe8 Bf5 h8N Rdc8 Ng6 Rc7 Nf4 c1Q+ Rb2 Be6 Nh5 Bb3 Qh8 Bd1 Qd8 Rbc8 b8N Rb7 Nc6 Bd4 Na7 Rc6 Nb1 Qce3 Nd2 Rb5 R2b3 Rbb6 Ka2 a3 Qb8 Bc3 Nf1 Bd4 Rc2 Rb7 Nd2 Rc8 Kb1 a2+ Kc1 a1B Kb1 Rf7 Ka2 Rb7 Ka3 Rb5 d7 Bac3 Bg2 Qh3 Bb7 Qhf3 Ra4 Rc7 Bc8 Rb4 Rb1 Rb2 Rb4 Rc6 Qf1 Ne6 Nc4 Be1 Rf2 Re2 R1b3 Rb2 Qe2 Bd2 Qe1 Rc5 Nb6 Rcc2 Nc4 B2c3 Rd2 Rc1 Rc2 Nc5 Nd2 Qff4 Nb5 Qfg3 Na7 Qgf3
Q1BNN3/Rn1p1r2/2n3Nq/PQ2KbB1/6bb/N3P3/3Q1r1k/rq2rB2 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 f5 gxf5 h5 d4 e5 fxe5 c5 dxc5 Qf6 a4 Qe7 Ra3 Qf6 Rg3 Qd8 Rg4 hxg4 Kf2 Kf7 Ke3 b5 Kf4 g5+ Ke4 g3 h4 b3 c4 b2 a5 g4 h5 b4 f6 Ke6 h6 b3 f7 g2 h7 g3 c6 Qh4+ Bf4 Ne7 e3 Qh6 c7 Nf5 c5 Bb7+ c6 Be7 f8Q Bh4 Nf3 g1R c8Q g2 Qb4 Rf8 h8N Rf7 Na3 b1Q+ Qc2 b2 Bg5 Ba6 c7 Be2 Qb5 Nc6 Ng6 Bd1 Qg8 Rf8 c8B Be2 Rh2 Rh1 Qcd3 g1R Qh8 Bd1 Rc2 Be2 Qc3 Bd1 Qd2 Nd6+ Kd3 Kf5 e6+ Kg4 e7 Kg3 e8N Nb7 Ke4 Be2 Nd4 Bg4 Ne6 Rf2 Qg8 Kh2 Nd8 Rf7 Qh8 Qe1 Rc1 b1B+ Kd5 Bbf5 Rc4 Ne7+ Ke5 Qd1 Rc7 Qb1 Bg2 Re1 Bf1 Nd6 Ra7 Nb7 Qg8 Nc6+ Kd5 Bc2 Ng7 Rf3 Nf7 Qb4 Bg2 Nc5 Bb7 Rb1 Qa8 Rhe1 Ne8 Ra1 Nd8 Rf7 Bf1 Qb1 Bc8 Bcf5 Kd6 Nb7+ Kd5 Nb8 Ke5 Nc6+
Q3Q1rB/1rBp1Q2/3Pb2P/3RK1nn/3qN3/1Qnq1qN1/1B4k1/1Nbn4 w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 c5 bxc5 g5 a4 Nf6 axb5 Ng8 f6 Qb6 Qg4 Qc7 Qd1 Qd8 g4 h6 f4 Qa5 f5 Qc7 Bh3 Qd8 Ra4 h5 Rf4 gxf4 g5 Na6 Bg4 hxg4 Qe2 Nb8 Qf3 Rh4 Qd1 Rh8 Ke2 Kf7 Kd3 a5 Kd4 e5+ Kd5 a4 c4 a3 h4 f3 d4 f2 b6 f1N h5 a2 h6 a1Q c6 e4 b7 g3 c7 g2 c5 e3 c6 e2 Rh2 e1Q Ne2 g1N Bb2 Na6 b8B Qg3 Rh5 Bb7 c8Q Ba3 Qb3 Nf3 Bc7 Ra7 Qa8 Nb4+ Ke4+ Nd5 g6+ Ke8 f7+ Ke7 f8N Kf6 g7 Nfe3 Ne6 Nd1 Ng5 Qf8 Qe8 Qh3 Ng3 N5c3+ Kf4 Qf1 d5 Qd3 d6 Ba6 Qa8 Bc4 Qe8 Bd5 Qa8 Be6 N5e4+ Kf7 f6 Kg6 f7 Rb7 Rc5 Nf6 Rd5 Ng5 Ke5 Nh5 Qe8 Rg8 Qa8 Qe8 f8B Qf7 Be7 Qff3 Bf6 Rb6 Bcd8 Rb7 c7 Bc5 c8Q Be3 Bc7 Bc1 Ne2 Ng3 Qd8 Kh5 Qe8+ Kg4 Qf7 Nh5 N2g3 Kh3 Qfe8 Rh8 g8Q Kg2 Qgf7 Rg8 Bg7 Qa4 Bh8 Qad4+
1Br1nbRq/1QP2Qrk/Q6N/5np1/1N4Rr/1Q2Pq2/2q3N1/3Rqb1K w - - 0 1 illegal: No possible last move, all moves rejected
rb2N2b/P6b/n1BN2k1/Q4Npb/1B3Q2/BP2q3/B1Rr1n1q/2K2Qn1 w - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 b3 a4 Nc3 a3 Rb1 Bd6 Kf2 Be7 Ke1 Bf8 Rb2 axb2 a3 Bb4 a4 Bf8 Ne4 Qd7 Nc5 Qd6 Nxb7 Qd8 e4 b1N d4 c5 h4 g5 e5 f5 h6 Kf7 h7 f3 e6+ Kf6 e7 f4 e8B c4 d6 c3 h5 c2 a5 Bg7 h6 Nc3 Kd2 f2 a6 f3 a7 Qb6 d5 Qb4 d7 Ne7 d8N Nf5 d6 Na6 d7 Qe7 Ba3 Na4 Kc1 Qc5 Bd3 f1B Ne6 f2 Ne2 Nc3 Nd6 Ng3 N2d4 Be2 Nc7 f1Q Rh2 Qh1 N4f5 Nce4 Qf1 Bh5 Rg2 Rg8 h8B Qh2 h7 Nf2 Be4 Qe5 d8Q+ Qe7 B8c6 Kg6 Nce8 Ne2+ Kd2 Be6 Qa5 Ng1 Kc1 Rf8 Bd3 Bg8 Bde4 Ba1 Bc3 Rf7 h8Q Bh7 Bd3 Qe3+ Bd2 Re7 Qd4 Rd7 Qf4 Bh8 Bde4 Qf3 Bdb4 Rdd8 Kd2 c1B+ Kc2 Bcb2 Bd3 Bbe5 Kc1 Qe4 Bb1 Qd4 Ba2 Qb6 Ne4 Rd2 N4d6 Qd4 Rg3 Qc5+ Rc3 Qd4 Rc2 Qe3 Nc8 Bc7 Ncd6 Bb8
rN2R1BB/1qb1rQ1N/Qb1bN1n1/bPp2n2/2PQ4/k7/B7/3nnBK1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 Bh6 a5 Qc1 a4 Bh3 a3 Qd1 Bb7 Bf1 Bd5 Be3 Bb3 Bc1 Ba4 b3 Ra5 Bd2 Ra6 Bc1 Ra8 bxa4 h6 Ra2 h5 Rb2 g3 Rb4 Ra6 Rh4 Ra8 Rg4 hxg4 e4 Ke7 f4 c5 h4 d5 Rh2 g5 f5 d4 a5 d3 e6 Kd6 f6 a2 h5 a1B h6 g2 Kf2 d2 e5+ Kd5 e7 Ra6 e8B Rc6 a6 Rh7 f7 Qe7 e6 Nd7 a7 Ra6 Bb2 Ne5 a8Q+ Qb7 e7 Ng6 Nh3 g1N Na3 Nf3 Nc4 Ne1 Na5 Ra7 Be5 Bc3 Nc6 Ba5 Nb8 Bb6 c3 Bg7 f8N g3+ Ke2 Kc4 Nf4 g2 Bf7+ Qd5 e8B g1B Rh4 N8e7 Bg8 g4 Bef7 g3 Qc2 d1N Qf5 Kb3 Rh3 g2 Re3 Rd7 Qa6 Bh2 Bd4 g1B Re4 Nc8 Re8 Ra7 Qe6 Kb2 Qf6 Qd7 Ba2 Ra8 N4e6 Nce7 Qf3 Qb7 c4+ Kc1 Qf6 Nf5 Ba1 Bh8 Bc3 Re7 Qf7 B2e5 Ba1 Bgh2 Bd4 Nde3 Kf2 Bec7 Bc3 Bhd6 Kg1 Nd1 Be5 Nd4 Bg7 Kb2 h7 Nh4 Bf6 Bg7 h8Q Ng6 Qh4 Bh6 Qg4 Bd2 Bh8 Bda5 Nh7 Ka3 Qgf4 Nf5 Qd2 Nb2 Qd4 Nd1
2n1QQ2/p3B2K/P3Qb2/5rNR/4nrRq/3NRn1N/1nb1P1bk/1b3Q2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 c5 bxc5 Ke7 f4 Ke8 g4 f5 Bh3 exf4 gxf5 h5 Bg4 hxg4 Kf2 Kf7 a4 Kf6 d4 Kg5 h4+ Kh5 d6 g5 d5 b5 a5 g3+ Kf3 g2 Ke4 Kg4 d7 Kg3 f6 b4 Kf5 f3 Kg6 g4 f7 f2 h5 f1B d6 b3 a6 b2 c6 Qa5 d8N Be7 f8Q Qb4 c7 Nd7 h6 Nb6 d7 Nc4 h7 Bf6 Nh3 g1N Nb7 Bg2 d8R Nf3 Nc5 Nfd2 Nc3 b1B+ Nd3 Ne4 Qf1 Nb2 Ra3 Ne7+ Kh6 Qa4 Rd4 Bf5 Bg5 Nc8 Rb3 Rg8 h8Q Bh7 Qe8 Rf8 Ra3 Rf7 Qhf8 Rb8 Qe6 Rb5 Qfe8 Rf5 Qf8 Ncd6 c8Q Qc4 Qce8 Nc8 Ng1 Bg6 Rh5 Bc2 Nh3 Kh2 Rb3 g3 Ra3 Nd2 Rg4 Ne4 Bf4 Qd4 Bd6 Qf2 Be7 Qf4+ Rgg5 Qh4 Rg4 Rf4 Nb1 Nc3 Ndf2 Bb3 Qg8 Bd4 Qd8 Ba8 Qdd7 g2 Nd2 g1N Qf8 Bg2 Nde4 Nf3 Neg5 Bb1 Qde8 R7f5 Kh7 B3c2 Rb3 Ne4 Re3 Bg7 Nd3 Bf6
Q1qqBB1R/2r5/1QnB2Kb/2nr2q1/QN6/Rn1RQPp1/n2nP3/k7 w - - 0 1 legal: proof: a4 d5 h3 e5 a5 d4 a6 d3 Na3 bxa6 Nb5 a5 Nd4 exd4 Ra3 a4 Ra2 f5 Ra3 g5 Rh2 c5 Rc3 f4 Ra3 c4 Ra1 c3 dxc3 g4 Rh1 f3 gxf3 g3 Bf4 Nc6 Bc1 Bg4 hxg4 Nb8 Kd2 Kd7 b4 Kc6 g5 Kd5 c4+ Ke5 c5 a5 c4 h5 c6 a3 g6 h4 c7 a4 c8R a2 c5 h3 c6 h2 c7 a3 b5 Rh7 g7 Qd7 b6 Rh5 b7 Qb5 Bg2 Ra7 Rd8 Nd7 c8Q Ne7 g8Q Nc6 b8Q+ Rc7 Qb6 Nc5 Nh3 Bh6+ Nf4 Qa6 Qa8 Qc8 Qc2 Rf5 Rd1 h1Q Qgb3 Qh5 Rh8 Qg5 Qbc3 Qb7 Qca4 Qc8 Rb1 a1N Rb3 a2 Ba3 Rcf7 Bb4 Rc7 Ra3 Nab3+ Ke1 a1Q Nd5 d2+ Kf1 Qb1 Qe3+ Qe4 Bh1 d3 Kg2 Qgd8 Kh3 Qg5 Rc1 d1N Rc3 d2 Rd3 Nc3 Bg2 d1N Bh1 Qgd8 f4+ Kd6 Kg4 Qee7 Be4 Nb1 f3 Re5+ f5 N1d2 Kh5 Nc3 Kg6 Na2 f6 Rf5 f7 Ke5 f8B Qh4 Qf2 Rh5 Bf5 Qhe7 Bd7 Rf5 Re3+ Kd4 Be8 Kc4 Rd3 Qh4 Nf4 Rd5 Qe3 Rf5 Rd7 Rd5 Nd3 Qhg5+ Kf7 Ne6 Bbd6+ Kc3 Nb4+ Kb2 Qf4 Nec5 Qe3 Qh4 Kg6 Ka1 Bf4 Rh5 Rd3 Rd5 B4d6 Qhg5+
3qq3/B1br2Qn/4NpPn/1b2P2N/1Q1B3k/b1B1Qb2/n2bN1B1/4K1R1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 b4 e5 c4 d5 cxd5 e4 h4 Bb7 f4 gxf4 g5 Ba6 h5 Bc8 Ra3 Ra6 Rf3 Rg6 hxg6 exf3 e4 Ke7 d4 h5 g7 c5 b6 f2+ Ke2 f3+ Kd2 c4 b5 a4 b7 h4 g6 Kf6 b6 Kg5 d6 a3 d5 a2 d7 a1B d6 c3+ Ke3 f6 Bb2 h3 Qa4 c2 Kd2 h2 Qa3 Na6 b8Q Nh6 g8Q Nb4 b7 Na2 Bd4 Rh7 Qg7 Kh4 Bg2 f1N+ Ke1 c1B Ne2 Nd2 Rg1 h1Q Ng3 Be7 Nh5 f2+ Kd1 f1B e5 Bb5 Ke1 Bab2 Nc3 Ne4 Ne2 Ng5 Qe3 Ba3 Bc3 Qe8 d8N Bg4 d7 Bed6 Ne6 Bc7 d8B Bf3 Be7 Qh3 Bc5 Qf5 Bb6 Qd3 Ba7 Qdd8 Bad4 Ba5 Qd6 Bb6 b8B Bc7 Qgd7 Rg7 Qb4 Nh7 Bba7 Rf7 Qde7 Rg7 Qf8 Rd7 Qg7 Bd2+
2Q2BK1/3Bb2b/pQ2P1Rr/1q1Qb3/1R2bnB1/2q2N2/3q1PQ1/1Rbk1r2 w - - 0 1 illegal: No possible last move
3Q2rK/q6N/bR1B3P/2NNb1Q1/q7/k5Pp/1br1rnQN/B1qB3r w - - 0 1 illegal: No proof kernel
RQ3B1N/3n1p2/rR1q1Q2/1K1PPn1r/1b5r/Q1n3r1/RR1B4/3Bqk1q w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 g4 Bf5 Nc3 Bc2 Ne4 Bb3 Ng3 f3 Nh5 Bc2 Nf4 gxf4 h3 Bf5 g5 Bg4 hxg4 Ba3 Rh5 Bb4 Rh1 Bf8 e4 Kd7 d4 Kd6 Kd2 c5 Kd3 a5 Kc4 h5 b4 f2 g6 f3 e5+ Kd7 g5 a4 d6 Ke6 g7 Kf5 g6 Ke4 d7 h4 b6 a3 b7 h3 b5 a2 b6 h2 d5 Rh4 Qa4 Bd6 Kb5+ c4 Qa3 c3 Nh3 c2 Nf4 Ne7 g8R Bb4 g7 Nf5 Be2 f1Q Bd2 c1N Ng6 f2 Nh8 Qe1 Bd1 f1R Rg1 h1R Rg6 Qe7 d8Q Nd7 b8B Rfg1 b7 Ne2 Rb6 Ra6 Bd6 Rg3 b8R Rh5 Bc5 Qd6 Qf6 R1h4 Rge8 Qh1 g8Q Qe1 Ra8 Qh1 Rb1 a1Q Rb2 Qc1 Reb8 Qc3 Rc2 Kf3 Ra2 Kg2 R8b7 Kf1 Qb8 Qe6 Bf8 Qd6 Rc7 Qc1 Rcc2 Qb1 Rcb2 Qc1 Bb3 Qe1 Bd1 Nc3+
RNq3N1/Q1q1P3/1K1P4/5QQn/R7/1N1RRnpb/1k1q2rr/1B1nn1r1 w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 b3 f5 Ba3 h6 Bb2 f4 Bf6 f3 Bg5 Bd6 Kc1 Bf4 gxf4 hxg5 Kc2 Kf7 Kd3 Kf6 Kc4 a5 Kc5 a4 e4 g6 h4 g4 d4 c6 d6 g3 b6 g5 f5 g2 h5 g4 d5 Ke5 b7 g3 f6 a3 d7 a2 f7 Qf8+ Kb6 c5 d8R c4 b4 c3 h6 c2 b5 c1Q h7 Qg7 f8Q Bh3 Bd3 Kd4 e5 f1R e6 f2 e7 Qc2 Qd2 Qg4 Qg5 Nc6 b8N Qd2 Qff5 Nb4 Nc3 Nc2 Ne4 Ne1 Bb1 Nf6 Nf3+ Kc4 Rh2 Kb3 Nd4+ Kb2 Nb3 Nh5 Nf6 g1N Ng8 Ngf3 Rd6 Rh1 Re6 f1Q d6 Rg1 Re3 Qfc4 Rhe2 Qc8 Rd3 Qgc4 Re5 Ra4 Ree3 Rb4 Ka5 Q4c7+ b6 Rc4+ Kb5 Rc2 b7 Qc1 Ka6 Rcg2 Kb5 Q7c4+ Kb6 Qd2 Na6 Qcc2 b8Q Qcc1 Qa7 Q1c4 Bc2 Qcc3 Nb8 Q3c4 Rc1 a1N Bb1 Nac2 Rd1 Nb4 Rd4 Nbd3 Rf4 Qcc2 Rfe4 Nf2 Ra4 Qdc1 Rd5 Q2d2 Rdd3 Nd1 Nh6 Rg8 h8R Rg6 Ng8 Rh6 Qgg4 Rh7 Qgg5 Q1c7+ Kb5 Qe8+ Nc6 Bg4 Nf6 Ng7 Kc5 Qed7 Ra8 Rhh2 Ng8 Nh5 Kb5 Qcc8 Kb6 Bh3 Nb8 Qdc7+
1K1nQ1bb/5n2/Bq2RRrN/b3QnB1/P3Q3/2p3RP/BkB1n3/5n1n w - - 0 1 legal: proof: f4 b5 g4 a5 c4 h5 Nc3 e5 Ne4 f5 Nf2 d5 fxe5 f4 b4 axb4 cxd5 Ra6 Nfh3 Rf6 Nf2 Rf5 gxf5 Qf6 Ng4 hxg4 Bh3 Qe7 Bf1 Qd8 Kf2 Kd7 a4 g5 d4 c5 e4 f3 Kg3 b3 f6 c4 e6+ Kd6 h3 b4 e7 c3 e8B b2 f7 b1N Qd3 f2 Bd7 b3 Nf3 b2 Bf5 Rh6 Nh2 Nd2 Rg1 Bg7 f8R b1N Rf6+ Be6 Qb5 Qb6 e5+ Kc7 Qe8 Nc4 Bc2 Ne3 Ba6 Rg6 Bd2 Bf7 e6 Bh8 e7 Nc6 Re6 Nd8 d6+ Kb8 d7 Kc7 d5 Nh6 d6+ Kc6 Rf1 Kc5 Rg1 Kb4 Ra2 Nb7 d8Q Bg8 d7 Nf7 Qb8 Nbd8 Rb2+ Ka3 Qe5 Qb5 Rb4 Qb6 Rf4 Kb2 Rff6 f1N+ Kf2 g3+ Kf3 g2 Ke4 Nc6 d8Q g4 Qdd5 g3 Ng4 Nf5 Bg5 Ncd8 Nh6 Nbd2+ Kf4 Ne4 Qdd4 Nf2 Qee4 N7d6 Ke5 N6f7+ Kd5 Nh1 Qde5 Qb7+ Kc5 Qd7 Kb6 Qd4+ Kc7 Qb6+ Kc8 Nh2 Rf1 g1B Rf3 g2 Re3 Nf1 Rg3 Qa5 Kb8 Bb6 Q8b5+ Qb4 e8B g1N Bc6 Ba5 Bd5 Ne2 Ba2 Bb6 Qe8 Ba5+ Ka8 Qc5 Kb8 Qb6+
1rr2B2/2R2p1k/B3Q3/2Q1n1P1/1RR1nn2/B1RP3b/1p5N/bQK2brq w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 g5 f4 e5 fxe5 g4 Na3 g3 b4 axb4 hxg3 bxa3 g4 Bb4 g5 Bf8 g4 b5 e4 h5 a5 c5 e6 a2 d6 c4 d7+ Ke7 e5 b4 g6 b3 g5 h4 g7 h3 a6 h2 a7 c3 Ba6 c2 d3 Bb7 Kd2 Qc7 d8B+ Ke8 e7 Qc8 Ba3 c1N Nf3 Nf6 g8Q Ne2 Qb1 Nf4 Rc1 h1B Rc4 Bg2 Nh2 Qc6 Kc1 Bc8 Bc7 Qb7 Bcd6 Nc6 Bdb4 Rb8 a8R Bd7 Ra7 Ne4 Rc3 Qa8 Rc7 Bdh3 Qh7 Bf1 Qf5 Bg7 Qe6 Nd4 Qb6 Qd5 R7c4 Nc6 Qc5 Kd7 e8R Rf8 Re6 Rfc8 Rf6 Ke8 e6 Ne5 e7 Qb7 Rb6 Qa8 Qb2 Qb7 Rb1 a1R Qd4 Ng3 Kd1 Bf6 Rcc1 Ng4 Rc7 Qh1 R1c4 Ne4 Rbc1 Bfg2+ Qg1 Bg7 Bd6 Bd4 Rbb4 Ne5 Qf2 Rb1 Qgf1 Ba1 Qc5 Rb2 Qe1 Rf2 R1c3 Rf1 Bc1 Rg1 Ba3 Nf6 Kd2 Bf1 Qb1 Ne4+ Kd1 Bf5 Kc1 B5h3 Rc6 Kd7 Rc7+ Ke6 e8Q+ Kf5 Be7 Kg6 Bf8 Kh7 Qe6 b2+
5QRB/Q3p1Kn/3pPn2/QbbQ2N1/n2R4/rR5r/P3B3/kb1qB2r w - - 0 1 legal: proof: d4 c5 dxc5 a5 c4 g5 b4 axb4 f4 Na6 fxg5 Nb8 g4 b5 cxb5 h6 g6 Ra6 Nc3 Ra5 Ne4 Ra8 g5 h5 Nf2 Qa5 Ng4 hxg4 Bd2 Qb6 Bc1 Qd8 Kd2 f5 Kd3 d6 e4 Kd7 h4 Ke6 e5 Kd5 c6 f4 h5 f3 c7 f2 h6 g3 b6 g2 e6 b3 h7 b2 g7 b1R b7 Nd7 b8Q Nb6 g6 Na4 Rh3 Nf6 g8R Bh6 g7 Bb7 c8Q Qa5 Nf3 g1N Qc3 Be3 Ng5 Nf3 Be2 f1B Bd2 Bc5 Be1 Qb6 Qa7 Qb3 Qd2 Qd1 Qca5 Bc6 Rh4 Bb5+ Rc4 Rc1 Rb1 Bh3 Rb3 Rb1 Rc8 Ke5 g8Q Bf5+ Ne4 Ng5 Qf8 Be8 Rd4 Bb5+ Ke3 Ra1 Nf2 Bb1 Nh3 Rg8 h8B Nh7 Ng5 Rg6 Qg7 Rh6 Rg8 Rh3+ Kf2 B1d3 Qf8 Rc1 Kg2 Bb1 Qd3 Rh1 Kg3 Rc3 Qf3 Re3 Re4+ Kd5 Kf4 Rc3 Kf5 Rd3 Re5+ Kc4 Kg6 Kd4 Qfb7 Rdh3+ Kg7 Qd2 Rb4+ Kc3 Rd4+ Kb2 Qd5 Ka1 Re3 Qc1 Rb3 Qd1 Qd7 Ra6 Qa7 Nc3 Qb4 Ra3 Qba5 Na4
1n3b2/r5k1/p4nN1/1bQbB1q1/rpQPQ3/qK4BR/1P1B4/NNQ1r3 w - - 0 1 illegal: No possible last move
b3q1b1/3q1p1r/3BN1Bn/1P5r/bQNQ4/P2nN1BK/6p1/QR2Nq1k w - - 0 1 legal: proof: b4 b5 f4 a5 bxa5 h5 g4 d5 gxh5 e5 c3 exf4 a3 b4 Ra2 b3 Rc2 Bb4 cxb4 Nh6 Rc3 Ng8 Rc4 dxc4 Kf2 Ke7 Kg2 Ke6 d4 Kf5 e4+ Kg5 h4+ Kf6 d5 Ke5 d6 g5 a6 c5 d7 f3+ Kh3 f2 h6 c3 h5 b2 h7 c2 a7 c4 h6 c3 Bd3 Bb7 Nd2 Kf4 e5 b1B e6 Qe8 d8N Nc6 e7 Ne5 Bg6 Nd3 Ngf3 Rc8 a8Q Rc5 Qa7 Ba8 Qb8+ Re5 Bb2 c1Q Ne1 c2 Nc4 Qd2 Ne3 c1Q b5 Bc2 Qd6 Ba4 Qb4+ Qc4 Qa1 f1B+ N1g2+ Kf3 Ne6 Rd5 Be5 Qf4 Bd6 g4+ Kh4 g3+ Kh3 Be2 Rb1 Kf2 Ne1 Kg1 Qad4 g2 Qa1 Qf1 Bg3 Qd7 e8N Kh1 Nd6 Qe8 Ndc4 Bf3 Qe5 Be4 Qd4 Ne7 Bd6 Nf5 Qa1 Rg8 h8Q Rg7 h7 Nh6 Qf8 Rg5 h8B Rh7 Bhe5 Rf5 Qe7 Rh5+ Qh4 Qb2 Nf3 Qd4 Ne1 Qa7 Bf4 Qad7 Bg3 Rh8 Bh7 Rf8 Bf5 Rh8 Bg4 Bg6 Bf5 Bh7 Be4 Bg8 Bg6 Rf5 Qg4 Rh7 Qgd4 Rh5+
1n3R1N/K2Rp1B1/1B2B2Q/bp2R1Pq/3b1nBk/bq1PrQ1q/1r6/1Q6 w - - 0 1 legal: proof: c4 d5 cxd5 a5 h4 g5 hxg5 f5 b4 axb4 d4 Bd7 Nc3 Bb5 Ne4 Bd3 exd3 fxe4 Ke2 Kf7 Ke3 Kg6 g4 c5 a4 b5 f4 h5 f5+ Kh7 d6 b3 g6+ Kh6 a5 Kg5 a6 c4 d7 h4 g7 h3 f6 h2 f7 b2 d5 b1Q Kd4+ e3 Kc5 c3 d6 c2 a7 Rh6 Bh3 Rh8 Ne2 Rh4 Bb2 c1B Rf1 h1Q Nf4 e2 Ng6 e1B Nh8 Nf6 g8B Nh7 Bg7 Qc8+ Kb6 Qf3 d8R Qe6 Rd7 Qe5 Qb3 Qa2 Qb1 Qb3 Ra4 Ba3 Re4 Qef5 Re5 Nf6 Rf2 Rh7 Rf1 Kh4 g5 Qh5 Bg4 Nd5+ Kb7 Nc6 Ka6 Rc8 a8Q Nb8+ Ka7 Nf4 Qf3 Ba5 Qe2 Qe4 Bh6 Ne6 Rb7 Bg7 f8Q Qg2 d7 Kg3 d8B Qg6 Rd5 Rc2 Rbd7 Rb2 Bb6 Bd4 Re5 Qe8 Rff5 Nf4 Be6 Qf3 Qf6 Qg6 Bf8 Rh3 Bg7 Qh5 Qh6 Kh4 Rf8 Qf1 Qe4 Re3 Qf3 Qh3
1rk5/1rb1p3/5BNP/r2P1bp1/Q1Nn1B1n/Qb3N2/1R2B1KQ/2q1qB2 w - - 0 1 illegal: No possible last move
1N1B2Q1/P1n4R/p1q2QrQ/2q1r2r/R1Pnbpb1/QK5N/3RN1k1/4n3 w - - 0 1 illegal: No proof kernel
bB2b1N1/5n2/kp1Q4/PNP1BpB1/1bbn3Q/2bQq3/Kr2N3/5QrR w - - 0 1 illegal: No proof kernel
2Qr1Qqk/K1R2n2/pP2B3/8/1rQ2pQ1/1PbNr3/1B1N1brN/1nn2B2 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra6 f3 Rg6 f4 Rg5 Bf5 gxf5 Na6 Rg6 Nb8 Rg4 hxg4 d4 Kf7 Kd2 g5 Kc3 Kg7 Kc4 c5 e4 f2 h4 g3 f6+ Kh7 f7 g4 e5 a6 e6 g2 b6 g3 h5 Qd6 h6 Qc7 e7 Nc6 e8B Qd7 d6 Qc7 d7 Qd6 d8Q Nf6 Bd7 Qe5 Qc7 Ne4 Be6 Rd8 Nf3 g1R Nh2 g2 Qg4 Nc3 Nd2 Bg7 f8Q Qg5 d5 Nb1 d6 Re8 d7 Ne5+ Kd5 c4 d8Q c3 Qc4 c2 Qdc8 Nf7+ Kc6 Bc3 Kb7 Qg8 Kb8 Rd8 Ka7 Rd4 b3 Re4 Q4c6 Rb4 Bb2 c1N Qc4 Qg6 Qd6 Rd8 Qdb8 Kh8 h7 Qg5 Qd6 Qg8 Qf8 Rd3 Nhf3 Rd4 Rh3 Rd3 Nh2 Rd8 Rd3 Nh6 Rd7 Nf7 Be2 f1R Rc7 Rf3 Bf1 Re3 Qd6 Qg5 Qe7 Kg7 h8N Kh7 Qd6 Qg8 Ng6 Kg7 Ne5+ Kh8 Kb8 Rh1 Nd3 g1B Ka7 Bf2 Qe7 Rg1 Qf8 Rg2
1N1qr2k/n1r4b/1QbP2RN/n5Qb/1bRK1q2/1R1Q1B1Q/1Ppp4/2N5 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 d4 d5 c4 e5 Be3 Ne7 cxd5 Nd7 d6 Ng8 d5 Nb8 Bd4 exd4 Kd2 Kf7 Kd3 Kg7 f4 h5 g4 c5 b6 a5 g5 a4 f6+ Kh7 f5 h3 g6+ Kh6 f7 Kg7 d7 h2 b7 h4 Ra3 h3 Nf3 Rh5 f6+ Kh8 Rg1 h1B Rb3 a3 Bg2 a2 Nc3 a1Q Nh4 h2 Nf5 Ne7 Nh6 Qa4 Bf3 Nbc6 b8N Na5 Ne2 Nec6 Nc1 c4+ Ke4 c3 Qd3 Bc5 d6 c2 Rg4 Na7 g7+ Kh7 g8R Bb4 f8Q Rc5 f7 Rc7 R8g5 Bg2 Rc5 h1B Qe7 Kh8 Qg5 Bf1 Rg3 Be2 Rc4 Bb7+ Ke5 Be4 Rg1 Bh7 f8Q+ Bg8 Qfe7 Bh7 Qe6 Bg2 Qh3 Bh1 Qdd2 d3 Kd4 Bg2 Qc3 d2 Qd3 Bd1 Bc6 Bh5 Bf3 Qe7 d8Q+ Qf8 Qdc8 Qd8 Qb7 Bh1 Qb6 Bg2 Be2 Bc6 Bf3 Qf8 Na6 Re8 Nb8 Qe7 Qgc5 Qd8 Rg6 Qb5 Qg5 Qf5 Qhg3 Qf7 Qh3 Qf4+
B1NBk3/bB3p1b/1b1QN3/Q1n1PQ2/q5p1/P5r1/Br1b1N1q/1Kn3R1 w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 g4 hxg4 a3 d5 cxd5 a4 Ra2 b5 b3 b4 bxa4 b3 a5 bxa2 h4 a1Q e4 c5 d4 g5 Kd2 g3 Kc2 c4 e6 g2 d6 c3 h5 g4 e7 Rh7 e5 Be6 h6 Kd7 e8B+ Kc8 d7+ Kc7 a6 Kc6 a7 Qc8 d8Q+ Qd7 Qa5 Bc5 Nh3 g1B Bg5 Ne7 Nf2 Na6 Nd2 Bb6 Nc4 Nc5 Nd6 Ng6 Bd8 Nf4 Bc4 Ne2 Ba2 Nc1 Nc8 Bf5+ Qd3 Rh8 h7 Bg6 Qf5 Qb2+ Kd1 c2+ Kd2 Rg8 h8Q Rb8 a8B+ Rb7 Qh3 Bh7 Qhd3 Rg6 Qda6 Rh6 Qad3 Rh3 Qda6 Rg3 Qad3 Qb5 Kc3 Qa4 Kb2 N1b3 Qda6 c1B+ Kb1 Bd2 Qad3 Bh2 Rg1 Nc1 Bf6 Kc7 d5 Qdc6 Be7 Qh6 Bc6 Rb8 Bcb7 Qh5 Qg5 Kd7 d6 Ke8 Qgf5 Ba7 Bd8 Qh3 Rf1 Bg1 Rd1 Qh2 d7+ Kf8 Bh4 Bb6 d8N Ke8 Ne6 Ba7 Bd8 Bb6 Ne7 Rc8 Qd6 Nd7 Bb3 Bbe3 Ba2 Ba7 Ne4 Rc2 Nc8 Bgb6 Nf2 Nc5 Rg1 Rb2+
NN1q1nn1/4pK2/bQ4R1/Q3bB1p/1BP1P2q/4B3/1knn3Q/r4rQN w - - 0 1 legal: proof: f4 a5 d4 c5 a4 cxd4 b4 b5 g4 g5 fxg5 Bh6 g6 Bf4 h4 Nc6 h5 Qc7 h6 Nb8 g5 Be5 Ra2 Bg7 Rb2 Qf4 axb5 Qf5 b6 Qe5 b5 Bf8 Rb4 Qg7 hxg7 axb4 Kd2 h5 Kd3 d5 c4 Kd7 e4 Ke6 b7 Ke5 b6 f5 Ne2 f4 Nbc3 b3 Qe1 f3 Rg1 f2 Na4 b2 Bh3 f1N Ng3 b1N Be3 Nfd2 Nh1 Nf3 Bf5 Ra7 Qa5 Nd7 b8N Ba6 b7 Nfd2 Nb6 Na3 Na8 Nc2 Rg4 Bb5 Qb6 Ra1 Rg1 Ba6 Rg3 Ngf6 g8Q Bg7 Qgd8 Rf8 Rg1 Bh8 g7 Ng8 g6 Rf6 Qa5 Nf8 Qdb6 Rf7 Bd7 Rff1 Bf5 Nh6 g8Q Bf6 Qh8 Ng8 g7 Nb1 Qh7 Nh6 g8Q Bh8 Qgg6 Ng8 Qg2 Bg7 Bf2 Bh8 Ke2 d3+ Kf3 d2 Qhg6 d1Q+ Kg3 Qe1 Kh4 Bg7 Kg5 Bh8 Qd2 d4 Be3 d3 Qdb4 d2 Q4a5+ Bb5 Qf2 d1Q Rg3 Qd8 Qh2 Nf6 Kh6 Nd2 Qg4 Ng8+ Kg5 Nh7+ Kg6 Nf8+ Kf7 Qf2 Rg1+ Qf4 Qgg3 Bg7 Qgf2 Bf6 Rg3 Qh4 Qfg1 Bh8 Bc5 Ba6 Bb4+ Kf4 Rg6+ Kf3 Qhg3+ Ke2 Q3h2+ Kd1 Nd7 Kc1 b8B Qg4 Bf4 Kb2 Be3 Be5 Nb8 Qh4
7r/pb2bkPN/rQ2N3/1Q1QB1n1/2r1R3/NbP2b1b/Rp5R/1Q2K2q w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 f5 exf5 c6 b6 Bg7 Ra6 Bh6 Ra1 Bf8 b4 Na6 b7 Bh6 b5 Nb8 b6 Bf8 Bb5 cxb5 c3 Na6 c4 Nc7 Ra2 Nd5 Ra1 Nc3 dxc3 Bg7 Nd2 Bh6 Nb1 Bf8 Ke2 d5 b8Q e5 f4 h5 g4 h3 b7 h4 g5 h2 f6 h3 g6 e4 g7 e3 f5 b4 c5 b3 c6 d4 c7 b2 f7+ Ke7 Ra2 Nf6 Nf3 Nh7 Ng5 Qd5 Na3 d3+ Kf1 Bd7 c8Q d2 Qc4 e2+ Kf2 Be6 Qe8+ Kf6 b8Q Be7 f8N Bc8 Qf1 d1B Bf4 Bb3 Qeb5 Bd7 Qbc7 Rc8 Qb1 Qe4 Re1 h1B Qca5 h2 Bb8 Bd1 Qcd5 Bg2 Bd6 Rc4 Qaa6 Bb3 Bc7+ Bd6 Rh1 Ke7 f6+ Ke8 Re1 Be7 Bf4 Bh3 Qab7 Qh1 f7+ Kd8 Bd6 Bc8 Q7c6 Bb7 Qca6 Ra4 Qac6 Ra6 Be5+ Bd6 Nge6+ Ke7 Qcc5 Ng5 Qcb6 Bb4 Nh7 Bd6 Rd1 e1R f8R Re4 Rd2 Rc4 Rf4 Bc5+ Rfd4 Kf7 Re2 Be7 Rde4 Qf3+ Ke1 h1B Rh2 Qf1+ Kd2 Qg1 Ke2 Bf3+ Kd2 Qg2+ Ke1 Qh1+
Q2n1r2/1BQQ4/2p1q1p1/1Q1nN3/2K2bb1/3R1P2/3q2PB/bbNNkBb1 w - - 0 1 legal: proof: b4 a5 h4 d5 c4 f5 cxd5 b5 e4 fxe4 a4 g6 h5 Ra6 h6 Rf6 Ra3 Rf7 Rah3 Rg7 hxg7 Qd6 Rb3 Qd7 axb5 Na6 b6 Nb8 b5 Qd8 Rb4 axb4 Ke2 Kf7 d4 Kf6 b7 Kf5 b6 Kg4 f3+ Kg3 d6 e5 d7 h5 d5 b3 d6 e3 Kd3 Kf2 Kc3 h4 Bc4 e2 Bb5 e1B+ Kd3 e4+ Kc4 h3 Nc3 e3 Nge2 Nf6 g8B b2 Bd5 Nc6 b8N b1B b7 h2 Bb2 Qe8 d8Q Bg4 d7 Bd6 Nc1 e2 Qc2 Bd2 Rd1 B2f4 Rd3 h1Q Nd1+ Ke1 Be5 Rf8 Ba6 Be3 Bh2 Qe6 Qb2 Bef4 Qb5 Bde5 Qe8 Qg1 d8Q Qe3 Qdd7 Nd8 Nc6 Ba1 b8Q Qd2 Ne5 c6 Bb7 Qe7 Be4 Nd5 Qbc7 Qe6 Bf5 Kf1 Be4 e1B Bf5 Bf2 Be4 Nf7 Qa8 Ke1 Rd4 Rb8 Bd3 Rf8 Bf1 Nd8 Rd3 Bg1
1B6/1n3n2/1Pp1qQRQ/3k4/NR2R3/n1KBBP2/pR1r1rn1/b2Q2qn w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 a4 h5 axb5 Bb7 Nc3 Bc8 Ne4 fxe4 g3 Bh3 g4 hxg4 Kf2 Bg2 Ke1 Bf3 exf3 Rh5 Ra3 Rh3 Ra1 Rh8 b4 Kf7 h4 g5 d4 e5 Kd2 a5 b6 g3 d6 Ke6 d7 e3+ Kc3 e4 b7 g4 h5 c6 b5 a4 b6 e2 f5+ Kd5 h6 e1N h7 e3 f6 a3 f7 e2 Rh6 g2 Kb3 g3 Rg6 a2 Bh6 Qc8 d8R+ Nd7 b8B Bg7 f8R Nc2 Rfe8 e1N Rb1 Na3 Ne2 g1N Be3 g2 Rb2 Nh3 Kc3 g1Q Re4 Ng2 Rf8 Qe8 Rff4 Nh6 Rfg4 Rg8 h8Q Nf7 Qh6 Nf2 Rh4 Be5 Rhf4 Qe6 Rfg4 Bc7 Rh4 Nc5 Rhf4 Kd6 d5 Nh1 Reb4 Ke5 d6 Nb7 d7 Ra5 d8Q Rd5 Rh4 Rd2 Qf6+ Kd5 Rhe4 Bd8 Nc1 Bc7 Bd3 Bg3 Nb3 Be5+ Bd4 Rf2 Nc5 Rd8 Na4 Rd6 Kb3 Rd8 Be3 Bc3 Rc2 Ba1 Rb2 Rd7 Kc3 Rd8 Ba7 Kd6 Bb8+ Kd7 Qd4+ Ke7 Bb5 Rd5 Qe5 Rdd2 Bd3 Kd7 Qf5 Ke7 Qf6+ Kd7 Ba7 Kd6 Bb8+ Kd5
4K3/3R2p1/b1b2QB1/NRb2q1n/1n2B2R/1QP1pqBb/3b2P1/Q1Q3rk w - - 0 1 legal: proof: e4 c5 f4 d5 Nc3 b5 a4 a5 axb5 d4 d3 c4 dxc4 Ra6 c5 Rd6 Nce2 Rd5 Nf3 h6 Ng5 hxg5 exd5 gxf4 Ng1 f3 Kd2 Kd7 Kd3 e5 Kc4 f5 b4 d3 h4 f2 c3 a4 d6 Ke6 c6 e4 Kc5 Ke5 h5 f4 c7 a3 h6 f3 b6 a2 b5 d2 b7 Kf4 h7 Kg3 b6 Be6 c8B Qe8 Bd3 f1Q Ne2+ Kf2 Rh4 Be7 Nd4 Kg1 Nc6 f2 Na5 Bd5 Bf5 Bc6 Bg6 Qf7 Bc2 Bg5 d7 Na6+ Kd6 Qf3 b8R Nb4 d8Q Nf6 b7 Nh5 Qf6 Rf8 Qe1 d1B Ke7 Bd2 h8Q e3 Ba3 Qf5 Be4 Bg4 Rd1 a1B Qg8 Bb2 Qa2 Qf3 Qa1 Bh3 Qc1 Rf7+ Kd8 Rd7+ Ke8 Kh1 Qa1 Nd5 Be7 Nb4 Bd6 Ba3 Bg3 Qf5 Rd8 Qf3 Rb1 Qf5 Qc1 Qd1 b8Q f1B Qb7 Ba6 Rb2 Rd3+ Rd7 Rd4 Bb1 Rf4 Qb6 Rf1 Be4 Qdf3 Rb1 Rg1 Rb3 Nd5 Rb5 Bc5 Qb8 Nb4 Qb6 Ba8 Qbe6 B8b7 Qb3 Bc6
KqrNRn1q/3pB1PQ/4bb1Q/5PRB/4p1Q1/6B1/b2kbQ2/r2b2R1 w - - 0 1 illegal: No possible last move, all moves rejected
Q3b2k/Pr1P4/N2QR1Qr/3R2R1/2B2qq1/N3Q2n/rp2Kp2/N3b1rr w - - 0 1 legal: proof: f4 e5 g4 a5 b4 axb4 c4 d5 cxd5 f5 Bb2 h6 fxe5 Nc6 Bd4 Nce7 Bf2 f4 Bh4 Nf5 Bg5 hxg5 gxf5 Bd7 Bg2 Be6 Bf1 Bc8 e4 Kf7 d4 b5 a4 c5 h4 c4 f6 g4 h5 g5 h6 f3 h7 c3 e6+ Kg6 e7 g3 e8N f2+ Ke2 b3 d6 b2 e5 g2 f7 c2 d7 c1R a5 b4 a6 g4 d5 g3 d6 b3 a7 Qh4 d8R Qb4 e6 Rc7 e7 Qf4 Qe1 Nh6 Nf3 g1Q Nfd2 g2 Ra6 Rb7 Nc7 Kg7 e8Q Bd7 Rh5 Rc8 Na3 b1R Rc6 b2 Na6 Ra1 Nb3 Ra2 Na1 Rcb8 Qe3 Be8 Qb1 Be7 d7 Bb4 Rd5 Be1 Re6 Rc8 Qbd3 Rc1 Qc2 Rg8 f8Q+ Kh8 Qcd3 Nf7 Qd6 Ng5 Qg6 Nh3 Rc8 Rf8 Rcc5 Rf5 Ra5 Rh5 Rg5 Rh6 Rad5 Qe5 Kf3 Qd4 Bc4 Qh2 Ke2 g1R Rg4 Qe4 Rgg5 Qg4+ Kd3 Rh1 Rd4 Bb4 Qge4 Qhf4 Qf5 Rb6 Qfe4 Bc3 Qa8 Rcg1 Rdd5 Qh4 Ke2 Be1 Rh5 Kg7 Rhf5 Rhg6 Rg5 Rb7 h8Q+ Kf7 Qh5 Kg8 Rge5 Rh6 Rg5+ Kh8 Qg6 Qhg4+
1B4Kb/1Q1BNq2/N1p3Q1/4nnr1/b2p2qq/1BNN1k2/1P1b1P1Q/2b4R w - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 a4 e5 g4 b6 gxh5 Bd6 c5 Bf8 c6 Ra6 Ra3 Ra7 Re3 Rb7 cxb7 exd4 e5 b5 Re4 fxe4 axb5 Kf7 Nf3 Ke7 Ng1 Ke8 Kd2 Ke7 h4 Ke6 b6 Kf5 e6 Kf4 e7 g5 e8B d5 h6 d3 Kc3+ d2 Kd4 a4 h7 g4 h5 g3 h6 g2 Ne2+ Kf3 Ke5 g1B Bd7 a3 Ke6 a2 Kf7 a1Q Bf5 e3 Nec3+ e2 Ne4 d4 Bd7 Bg7 Qc2 d1Q Bf4 e1B Bc4 Bh2 Nbc3 Ne7 Nc5 Nbc6 b8N Bd2 b7 Rg8 h8N Nf5 h7 Qh4 Ng6 Qa6 Nd3 Bh8 Ne7 Rg5 Bb3 Ne5+ Kf8 Qg6 Na6 c6 b8Q Qf6+ Bf7 Qg1 Qb7 Qgg4 Bg3 Nc4 Be5 Bhf4 Bb8 Ne5 Qb1 Ng7 Kg8 Nf5+ Ng6 Bc1 Bb3 Bfd2 Qb4 Bg7 h8Q Bb7 Qh6 Bc8 Ne7 Bh8+ Qg6 Bb7 Qa1 Bc8 Qaa5 Bb7 Qc7 Bc8 Nac5 Ba6 Qbb7 Bb5 Na6 Ba4 Qd6 Nc4 Qh2 Ne5 Bd6 Qhg3 Bc7 Q3h4 Bb8 Qf7+
Q3q3/NRR1K3/1r4P1/2B4P/b3Bkp1/5pr1/nQ1pnR1b/1Q1nB1qB w - - 0 1 legal: proof: g4 c5 d4 cxd4 g5 e5 f4 b5 fxe5 h5 b4 g6 a4 Bc5 axb5 Nh6 Nd2 Bb7 Ne4 Nf5 Ra6 Ne7 Rxg6 Bc8 Nf2 Ng8 Ng4 hxg4 Rg7 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 d3 c4 d2 c5 f6 h5 a4 b6 d6 g6 a3 c6 a2 c7 a1N b5 Rh6 b7 Be7 b6 Nb3 Rh2 Ra2 Ba3 Na5 Rf2 Nac6 Bg2 Qf8 Nf3 Rh8 Qb1 d1Q Bh1 Na6 b8Q Qe8 b7 Nd4 Bc5 Bd7 c8R Nb4 Rc7 f5+ Kf4 d5 e4 Bd6 Kg5 f4 Qa8 Qa4 b8B Qa7 Rb7 Bb5 Rgc7 Nh6 Qb2 Bd7 Qb1 Ne2 Nd4+ Ke7 e6 f3 e5 Nf5 Qb2 Ne3 Nb5 d4 Qb1 Qb6 Na7 d3 Qb2 Nd1 Qb1 Kf8 Kf6 Ba4 e7+ Kg8 e6 Bh2 Qb2 d2 Qb1 Ra1 Qb2 Na2 Qb1 Qc8 e8B Rh7 Bc6 Qe8 e7 Kh8 Ke6 Kg7 Qb2+ Kh6 Qb1 Kg5 Qb2 Qd8 e8Q Kf4 Qeh8 Rd7 Qb1 Rd6+ Kf7 Qc8 Qhb2 Re6 Be4 Qh8 Be7 Qbd4 Bh4 Rb6 Ke7 Qg8 Rf1 Qc8 Be1 Qg1 Rf2 Qg8 Nc6 Qc8 Ba7 Qe8+ Kf6 Ndc3 Qd1 Rb5 Bc5 Qg3 Na7 Rb4 Qdc2 Rd1 Qcb1 Rb5 Rg2 Rc1 Bef2 Rg1 Be1 Nd1 Rf2 Qg2 Q2a1 Qf1 Qab2 Rg3 Nc6 Qg1 Na7 Qc8 Kf7 Rb6 Ke7 Qe8+
2b2r2/2pk1B2/1B4N1/1bBqn3/n3QpPR/qB1N1r2/N2KP2p/1Qn4Q w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 b4 e5 f4 exf4 a4 Bd6 axb5 Be5 Ra6 f3 Rf6 Bg3+ hxg3 Qe7 Rf5 Qd8 Rf4 gxf4 d4 f5 d6 a5 b6 h5 b7 f2+ Kd2 f3 g5 h4 d7+ Ke7 d5 h3 b5 a4 g6 a3 g7 a2 b6 a1N g4 f4 d6+ Ke6 Nc3 Rh5 Bg2 f1Q Na2 f2 Nf3 Rg5 Ne5 Qf6 d8Q Ra6 d7 Rf5 Qe8+ Ne7 d8B Ra3 g8B+ Qf7 Ng6 Nc6 b8Q Ne5 b7 Rf3 Ba3 Qg1 Bc5 f1B Bb6 Qc5 Qea4 Kd6 Qe4 Nd5 Be7+ Kd7 Bf8 Qe6 Bf7 Qa3 Bfc5 Nc3 Qdb1 Qeb3 Qa8 Na4 Rh2 Qc4 Bh1 Bg2 b8N+ Kd8 Nc6+ Kd7 Ncb4 Qd5+ Nd3 Nb3+ Kd1 Nc1 Kd2 Bf1 Rg2 Rf6 Rg3 h2 Rh3 Rf5 Rh4 Bg2 Qb5+ Qc6 Qeb4 Re3 Bd5 Rf8 Bf7 Bf1 Bhd5 Bg2 Qd4 Be4 Qb1 Rh3 Qg1 Rf3 Qh1 Qe6 Bc4 Bc6 Bb3 Bb5 Qe4 Qd5
5QbB/1P1rrb1p/K2P3B/3Q4/1Q2p1pN/2N1R1n1/q1kqNbBn/4B3 w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 Kd7 a4 b5 axb5 Nh6 e4 Ng8 h4 gxh4 d6 Ke6 d7 Kd6 g4 Ke6 b4 f5 g5 c6 d5+ Kf7 d6 Qb6 Ra3 Qc5 Rg3 Qd5 Rg4 fxg4 exd5 Kg6 Bf4 Kg7 Bc1 Kf7 Kd2 Kg6 Kc3 Kf5 Kc4 Ke4 d8Q e5 f4 a5 g6 h3 g7 h2 f5 a4 b6 a3 b5 c5 b7 a2 d7 a1Q b6 Nc6 Kb5 c4 b8B c3 f6 c2 b7 Nh6 g8Q Bc5 f7 Nf5 f8N Bf2 Bh6 c1Q Qa5 Qd2 d8B Ng3 Bg2+ Kd3 Nc3 Be6 Ng6 Qa2 Qf8 Bg8 Qab4 Nd4+ Kb6 Ra3 Bh4 Nf3+ Kb5 Ra6 Nge2 Re6 Re1 h1B d6 Re8 Ba7 Nh2 Bd4 Re7 Qdb3 Bf7 Qd5 Kc2 Kb6 Rg8 Kb5 Rg7 Kb6 Qb3 Ka6 Rd7 Bf6 Bg8 Nh4 Rge7 Bh8 Qb1 Bb6 Qa2+ Ba5 Bf7 Nc1 Bg8 Re3 Bf7 N1e2 Bg8 Bh3 Be4 Bf1 Bg6 Bg2 e4 Na4 Nh5 Qa3 Qd1 Be1 Ng3 Nac3 Qd2 Qaa5 B6f7 Qa4+ Qb3 Qb4 Qa2+
1nqQ1N2/6k1/R5r1/1Kn2bpQ/5RNQ/2np4/P1NrP1pR/1B1b1Rn1 w - - 0 1 legal: proof: f4 c5 d4 f5 dxc5 e5 fxe5 a5 b4 axb4 g3 Be7 Bd2 Bd6 Bc1 Bf8 Kd2 f4 Qe1 f3 Qd1 h6 Ke1 Be7 Be3 Bg5 Bc1 Be3 Bd2 Bd4 Bf4 Be3 Bg5 Bf4 gxf4 hxg5 Kd2 Kf8 Kd3 b5 h4 d5 c4 b3 h5 d4 e6 g6 h6 g4 f5 b4 e7+ Kf7 e8Q+ Kf6 c6 g3 h7 f2 c5 g5 Kc4 b2 c7 b3 c6 Nh6 Bg2 f1B Na3 b1N Qh5 b2 Rh2 Bd7 c8R Ng8 c7 Ba4 Nc2 Ra6 Be4 Nc3 Nh3 b1N Nf2 Bh3 Ng4+ Kg7 Qh1 Qd7 Rf8 g2 c8R Nf6 Rc6 Qc8 Qe1 Rb6 Qeh4 Nd2+ Kc5 Nf3 Rf1 Nfd7+ Kc4 Rg8 f6+ Kh8 f7 Kg7 Bg6 Nc5 Re6 Rb2 Ra6 Bb3+ Kb4 Ng1 Rf4 Nd1 Kb5 Nc3+ Kb6 Rb1 Ne1 Nc6 Rf1 Rc1 Ne5 Rh8 Bb1 Nb8 Ka5 Bd7 Ng4 Bd1 Kb4 Rc2 Kc4 Rd2 Nc2 Bc6 Kb4 Be4 Ka5 N3a4 Kb5 Bg6 Re8 Rf8 Re4 Rd8 f8N Rd6 Ref4 Be4 Qe8 d3 Qd8 Bf5 h8Q+ Kf7 Kc4 Rg6 Q8h5 Kg7 Kb5 Nc3+
B1q3NR/P4KQ1/P1nr4/p2QB3/1Qb4B/2np3p/2rbkb2/bN2N1B1 w - - 0 1 illegal: No proof kernel
n1qr2Q1/2N2R2/1R3RQr/P4r1N/1n1KB2k/p2P4/1Q3p1p/1RNbnq2 w - - 0 1 illegal: No proof kernel
1q6/2NkB1bp/P1b1N3/1pPK4/q2Bp2Q/1B1BR2N/1QnQ4/rb1r1q2 w - - 0 1 illegal: No possible last move, all moves rejected
4N3/BQ1b1k2/Pp5Q/r2Nb3/BK2pr2/1N1BR1P1/1n1prq2/2QrB1b1 w - - 0 1 legal: proof: b4 a5 h4 axb4 e4 f5 d4 c5 a4 g5 hxg5 d5 dxc5 d4 Ra3 Nd7 Re3 Ndf6 Re2 Nd5 exd5 Ra5 Re3 Ra8 Re4 fxe4 Kd2 h5 c4 e5 f4 d3 f5 b3 Kc3 h4 f6 b2 d6 h3 g3 e3 f7+ Kd7 c6+ Ke6 d7 e4 c7 h2 a5 e2 c5 e1B+ Bd2 Qe7 d8B Bh6 f8Q Nf6 c6 Qh7 g6 Ne8 a6 Qe7 g7 Nd6 g8N Be3 Kb4 Bd4 Qc1 Bg7 Nf3 Qf7 Nc3 Bf2 Nf6 Nc4 Be1 d2 Ne8 Bd7 c8Q Rh5 c7 Bg1 Nd5 Be5 Bd3 b6 Qh6+ Qf6 Nd4+ Kf7 Qb7 b1R+ Nb3 Qf2 c8B Nb2 Bc7 Ra1 Bb8 Ra5 Ba7 Rf5 Qbc7 Rf4 Bb7 Rb8 Bc6 Rd8 Bcb5 Rc8 Qb7 Rc3 Bf1 Re3 Bfd3 Re2 Ba4 Qf3 Bb8 Bgd4 Rg1 h1R Ba7 Qg2 Rf1 Bg1 Rf3 Qf2 Qh8 Rh6 Re3 Rc6 Qh6 Rc3 Qb1 Rc1 Qc2 Rd1 Qb1 Rc5 Qc1 Ra5
1QRR4/rnp2P1Q/1N1Pr3/Q4N2/pr2Q3/1q1pb1B1/1R1nr3/K1kN1n2 w - - 0 1 legal: proof: d4 e5 c4 exd4 g4 h5 gxh5 b5 a4 d3 axb5 Qh4 Qd2 Qe7 Qd1 Qd8 e4 f5 e5 d5 Bg2 d4 Bb7 Be6 Be4 Bd5 cxd5 fxe4 Kd2 Ke7 b4 a5 f4 g5 h4 g4 d6+ Ke6 h6 Kd5 h7 Kc4 f5 a4 f6 g3 h5 g2 e6 Nd7 f7 Qh4 b6 Ngf6 b7 Rd8 b8N Nd5 h6 Nf4 e7 Ne6 e8Q Bg7 b5 Nec5 b6 Ne5 b7 Qg3 Nd7 Ra8 b8Q Ra7 Ra2 Nb7 Qe1 Kb3 Nf3 g1R Nc3 e3+ Kd1 d2 Nh4 Bf8 Nb6 Rg2 Nf5 Nf3 Qe4 Re2 Rb2+ Ka3 Kc2 d1N+ Kb1 Nd2+ Ka1 Rg8 h8Q Rg4 h7 Bh6 Qhc8 Qh3 h8R d3 Qe5 Rb4 Qg8 Qf3 Qb5 Qd5 Qh7 Qb3 Qa5 Rg2 Rg1 e2 Qh4 e1R Rc8 Ne4 Bf4 Ne3+ Nd1 Nd2 Rc2 Nef1 Qh1 Rf2 Rgg8 Re6 Qe4 Re2 Bg3 Be3 Rgd8 Qc4 Ra2+ Kb3 Nb2 Kc2 Nd1+ Kc1 Rb2 Qb3
q2Q4/qN1P4/1r4p1/1pQ3b1/2RRNPK1/B2Q1p2/k1bRN2n/r3qq1N w - - 0 1 illegal: No possible last move
BQ5r/1P5k/4pB2/1NbpnrK1/2Pnp1N1/B7/1n1B2bN/1rQr1RQ1 w - - 0 1 legal: proof: b4 b5 e4 c5 g4 d5 a4 h5 axb5 Nd7 d4 Nb8 e5 Qd6 exd6 cxd4 gxh5 f5 Ra3 Nf6 Re3 Ng8 Re4 fxe4 Kd2 Kf7 f4 a5 h4 g5 b6 Kg7 b5 g4 f5 g3 d7 g2 d8B e6 b7 a4 b6 a3 f6+ Kh6 f7 d3 Ke3 a2 Kf4 a1N Bd2 Bb4 f8B+ Kh7 h6 Ba5 h5 Bb4 Na3 Nc6 b8Q Ne5 Nf3 g1R Nb5 Rg6 Nh2 Rf6+ Kg5 Ng6 Qc1 Rf2 Bf6 Nf4 c3 Ba5 Ba3 Nb3 Be2 Ra7 Rf1 Bb4 Bd1 Nd4 Ba4 Bc5 c4 Rb7 Qa7 Ne7 Qb8 Nec6 Qa7 Ne5 Qb8 Kg8 h7+ Kf8 Qa7 Bd7 h6 Bc6 Qb8+ Be8 Qa7 Bh5 Qb8+ Kf7 Qa7 Rc8 h8N+ Kg8 Ng6 Bf3 Qb8 Bg2 h7+ Kf7 h8Q Rf3 Qh5 Kg8 Qg4 Kh7 Qg3 Rd8 Qf2 Rh8 Qg1 Rf2 Na7 Rf3 Bc6 Rf2 Nb5 Rf3 Bc3 d2 Ba5 d1R Bd2 Rd7 Bb7 Nfd3 Ba8 Nb2 b7 Rf7 Nf4 Re3 Nh3 Ree1 Nf2 Rff8 Nfg4 Rf7 Qc3 Rb1 Qc1 Rd1 Be7 Rf3 Bf6 Rf5+
K1b2B1B/n4nP1/kbBRbr2/3pQb1p/2N3QN/B1NP4/6bp/n2Q4 w - - 0 1 illegal: No proof kernel
Q1NNQrr1/1pNRP3/b2pB3/2bP1rk1/1Q6/2qKp2R/1q2RQ1r/4r3 w - - 0 1 illegal: No possible last move
BQ2B1qN/1Q1P2k1/1rN1p1N1/5B2/r3P2R/nb2B3/ppp1qKb1/b1Q5 w - - 0 1 legal: proof: g4 d5 f4 g5 fxg5 d4 h4 d3 g6 Qd6 g5 Bf5 g7 Be6 cxd3 Qd8 d4 Bh3 d5 Bc8 a4 a5 Ra3 Nd7 b4 Ne5 h5 Ng6 hxg6 axb4 Rh2 bxa3 Rh6 Rb8 Rh1 Ra8 e4 h5 d4 c5 d6 b5 a5 f5 d5 f4 a6 c4 a7 f3 Rh4 a2 Na3 b4 Nb5 c3 Kf2 c2 Bh3 e6 Be3 b3 Nd4 Nf6 g8Q Bd7 g7 Ba4 g6 Nd7 Nge2 Nb6 Bf5 Nc4 Qh7 Na3 g8B Bg7 d7+ Kf8 Nc6 Ba1 d6 b2 Bf7 Bb3 Qc1 Rb8 a8B Rb6 Nf4 Qg5 Rg4 h4 d8N h3 Rh4 h2 Be8 h1B Qb7 Bg2 d7 Kg7 Nf7 Rh5 Nh8 Qd8 Bh3 Ra5 Bg4 Ra4 Bf5 Kf6 g7 Qb8 Kg3 f2 g8Q Qd8 Nfg6 f1Q Qc7 Qe2 Qb7 Qe7 Qf8+ Qf7 Qd6 Kg7 Qdb8 Qc4 Kf2 Qg8 Na7 Qb5 Nc6 Qe2+
r6k/2Rp3P/3K2R1/N2b3N/1P3Q1n/Rbn1p1bp/1p1R1QQ1/rB4Nn w - - 0 1 illegal: No proof kernel
3Qnn2/rQ2pk2/n2p3n/1B2nP2/3K1N2/N1q3b1/1NpRPR1p/4R1QQ w - - 0 1 legal: proof: g4 b5 a4 a5 axb5 g5 h4 c5 c4 d6 b4 a4 b6 f6 b7 Na6 b5 Nb8 b6 Ra5 d3 Rb5 Bb2 Be6 cxb5 c4 Bc1 c3 Ba3 Bc4 dxc4 Nd7 Bc1 gxh4 g5 Nb8 g6 Qc7 Bd2 Qd8 Bg5 fxg5 f4 h5 Kf2 h3 Ke3 h2 f5 h4 c5 g4 g7 h3 c6 a3 c7 g3 c8N a2 Bg2 Nf6 g8Q Qc7 Kd4 Nbd7 Bc6 g2 b8Q c2 b7 Qa5 b6 Rh4+ Qg4 Bg7 Na3 Kf7 Bb5 Nf8 Qf1 Rh8 Rd1 a1N Rd2 Bh6 Qa7 Ne8 b8R Bf4 b7 Bg3 Nb6 Rg8 Nbc4 Nb3+ Kd3 Nc5+ Kd4 Rh8 Nb2 Na6 Rd8 Qc7 b8Q Qc6 Qab7 Qc3+ Ke4 Rh4 Rc8 Rh8 Rc4 Rh4 Qd8 Rh8 Nf3 g1N Nd4 Nf3 Ne6 Ne5 Nf4 Rh4 Rg1 h1N Qd1 h2 Re1 Nf2+ Kd5 Qf3+ Kd4 Rh3 Qg5 Nfg4 Rc3 Qc6 Rf3 Nh6 Rf2 Qc3+ Kd5 Bh4 Qg1 Rd3+ Ke4 Bg3 Qb1 Rd5 Qc1 Rc5 Qh1 Rc7 Qg1 Qf3+ Kd4 Rd7 Qa1 Qc3+ Kd5 Qc8 Qh1 Qc6+ Kd4 Kf6 Qbc8 Nb4 Ref1 Ra7 Qb7 Kf7 Rg1 Na6 Qf1 Nfg6 Qfg2 Qf3 Re1 Nf8 Qgg1 Qc3+
3N1nR1/2n5/R6Q/1BpN1p2/PqN2Pb1/Q1pR2qR/rn1QKp2/nk6 w - - 0 1 illegal: No possible last move, all moves rejected
KR2qn1n/p4kN1/rp2pr1R/4rQ2/r6p/R1QrPQ1P/N7/1N1N3B w - - 0 2 legal: proof: g4 f5 a4 fxg4 c4 d5 a5 e6 a6 Bc5 cxd5 Bd4 d6 Bc3 bxc3 Nc6 c4 Nb8 Ba3 b5 Bc5 Bb7 Bb6 cxb6 axb7 Qg5 Qc2 Qe7 Qd1 Qd8 f4 h5 d4 g5 Kd2 g3 Kd3 b4 d5 g4 d7+ Kf8 f5 b3 c5 g2 Kc4 g3 Kb5 b2 d6 Qe7 d8Q+ Kf7 c6 Qc7 e3 Qd7 f6 Na6 b8R Ne7 Qc7 Qc8 d7 Rh6 d8N+ Kg6 f7 Rh7 f8Q Rf7 Ne2 g1R Nec3 g2 Ra3 Rf4 Qf3 Nc5 Nd1 Nd7 Qf5+ Kg7 Bd3 Nf8 Be4 Rf1 Qce5+ Kg8 c7 g1R Nc6 Qe8 Ka6 Rg5 Kb7 Neg6 c8N Nh8 Nd6 Rh4 Bd5 Ra4 Nb4 Ra6 Qc3 h4 h3 Rg4 Na2 Rga4 Be4 Rf2 Rf1 Rd2 Rf2 Rd3 Bc6 Qg6 Ne8 Qh5 Ng7 Qe8 Nd2 b1R Rg2 Rb5 Nb1 Re5 Rg6 Nf7 Rh6 Nh8 Rd8 Rc8 Bd5 Rc7+ Ka8 Rf7 Rb8 Rf6 Q3h5 Qd7 Bh1 Qe8 Qhf3 Kf7
4n1b1/krpQ1B1Q/6N1/BnnNr1NR/6Q1/2K2p1P/N1n1pPp1/2B4n w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 Bb7 d4 Qd5 exd5 Ba6 g3 Nf6 d6 Bc8 d5 Ng8 b4 h5 Qd3 f5 Qf3 f4 Qd1 e6 Ra2 f3 Re2 Be7 Re4 Bg5 Rg4 Bf4 gxf4 hxg4 Kd2 Kd7 f5 a5 h3 g5 f6 a4 f7 e5 b6 g3 b5 e4 b7 e3+ Kc3 a3 b6 g4 Qd4 g2 Ne2 g1N Nf4 Nc6 b8B g3 b7 g2 Ba7 a2 b8Q a1N Bb6 Rh5 Ba5 Na7 f8N+ Kd8 d7 Nf6 N8g6 Re5 Qb4 Rb8 Qd3 Nc2 Qf5 Rb5 Qh5 Rb8 Qh7 Ne8 Bd3 Ba6 Bf5 Bc8 Be6 Rb7 Bf7 Nb5+ Kb2 Na1 Nc3 Ne2 Re1 Ng3 Na2 Nh1 Rd1 e2 Rd4 Na3 Kc3 N1c2 Re4 Re7 Re5 Nb5+ Kd2 Re6 Rh5 c3+ Kd3 Re7 Qe4 Re5 Qf5 Na1 Qg4 c2 Be3 Na3 Kc3 c1N Bd2 Nd3 Bc1 Nc5 Nf8 Ke7 d8N Kd6 Nde6 N1c2 Ng5 Be6 N8g6 Kd7 d6 Kc8 d7+ Kb8 d8Q+ Ka7 Nd5 Nb5+ Kd2 Na1 Qd7 Nf6 Be8 Bg8 Bf7 Ne8 Qb4 Na6 Qbg4 Nc2 Kd3 Nc5+ Kd2 Nbd4 Kc3 Nb5+
R1qb2N1/r2p1nRQ/k1N2pR1/1Np5/3P2Kq/bpQ1N2n/1Qp3BP/8 w - - 0 1 legal: proof: c4 h5 b4 a5 e4 c5 g4 Na6 d4 b6 a4 Bb7 f3 Qc7 Bd2 b5 gxh5 bxc4 b5 Qb6 Bb4 axb4 a5 Qd6 Qe2 Qc7 Qd1 Qb6 h6 g5 h7 c3 Kf2 b3 Bh3 c2 Ke1 Rc8 Bg4 Rc6 Bf5 Rf6 Bh3 Rf4 Bf1 f6 Kf2 Bd5 Ke1 Bf7 e5 Re4+ Be2 Kd8 e6 Ke8 exf7+ Kd8 Kd2 e5 Bc4 Ke7 Bf1 Rf4 Ke1 e4 Qd2 e3 Qd1 Re4 fxe4 Qa7 Ke2 Qb7 Ke1 Qb6 Ke2 Kd6 Kf3 Kc7 e5 Kb7 e6 e2 e7 e1B e8Q Bf2 Nd2 Be7 f8N Nb4 a6+ Ka7 Kg4 Qc7 Qc1 Qa5 Ne2 Qc7 Nc3 Qd8 b6+ Kb8 b7 Ka7 b8N Be3 Nb5+ Kb6 a7 Qc8 a8R Nd3 Qb2 Nf4 Nc6 Bd8 Bg2 Nh3 Nf1 Bc1 Qe3 Kb7 Qec3 Nh6+ Kg3 g4 Ng6 Kb6 Rg1 Nf7 Nge7 Kb7 Kh4 g3 Ne3 Rg8 h8Q Re8 Bf3 g2 Ng8 Re6 Qh7 Rd6 Qb1 Ba3 Qbb2 Re6 Kg4 Re8 Rh1 g1Q+ Bg2 Qe1 Rg1 Qf2 Raf1 Qe1 Rf5 Re6 Rg5 Qh4+ Kf3 Rd6 Rg6 Re6 Nce7 Ra6 Nc6 Qe1 Kg4 Ra7 Rf1 Ka6 Rf5 Qb7 Rfg5 Qc8 Rg7 Qf2 R5g6 Qh4+
1rB1r1r1/1pNQR3/4RpP1/3R2B1/Bnp3r1/2QppPQ1/4k3/2b1Bq1K w - - 0 1 illegal: No proof kernel
Q1R2qBN/5N2/Qpp3pN/4Q3/1k3pK1/1pr1P1n1/nPb2p1N/1RR3q1 w - - 0 1 legal: proof: h4 d5 g4 a5 c4 f5 cxd5 e5 d3 g6 h5 Bh6 Bd2 Bg7 Bb4 axb4 h6 e4 hxg7 Ra6 f3 Rf6 Bg2 f4 Bf1 Rf5 gxf5 exf3 Kf2 Kd7 a4 Kd6 f6 Kc5 d4+ Kc4 d6 h5 e3+ Kd5 f7 h4 f8Q b3 d7 h3 a5 c6 a6 b6 a7 h2 a8Q Bb7 Qc5+ Ke4 d5 Rh6 d6 Qe8 d8N Ne7 g8N Qf7 d7 Bc8 Qe2 Rh8 Qea6 Rh6 Nh3 Nf5 Bc4 Rh5 Rc1 h1Q Nh6 Qf8 Bg8 Rg5 Ndf7 Ng3 d8R Bf5 Rc8 Qd1 Qc3 Kd5 Nd2 Bc2 Nf1 Rh5 Qh8 Kc5 Qe5+ Kb4 Rab1 Rf5 Nh2 Qh1 Q6b7 Na6 Nh8 Rh5 Ng5 Qg2+ Ke1 f2+ Kd2 Qg1 Ngf7 Kc4 Qba7 Nb4 Qaa5 Na2 Qa3 Ne4+ Ke2 Ng3+ Kf3 Rf5 Q3a6+ Kb4 Kg4 Rh5 Qd6+ Rc5 Qe5 Rc3
2Q4B/1r3n1k/1p1N1Q2/3b1bB1/2q1BP2/KP3NQ1/n1r2q2/qRQNbn1r w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 b3 gxh4 Nc3 a5 Rb1 a4 Rb2 a3 Rh2 axb2 a4 Bh6 Rh1 Bf8 g4 Kf7 d4 Kg7 Kd2 b1N+ Kc2 h5 Kb2 e5 f4 c5 f6+ Kh7 d6 c4 f7 h3 d5 h4 a5 h2 d7 b6 d6 h3 g5 e4 a6 e3 a7 e2 Nf3 e1Q Ka2 Nh6 Nd2 Qc7 d8N Bf5 d7 Bb4 f8Q Nf7 Bg2 Qf2 Be4 Na6 Nb7 Rb8 Nd6 Rb7 a8Q Ba5 d8B Nb4+ Kb2 Na2 Qc8 Bb4 Rf1 h1B Qc2 h2 Nf3 Ba5 Nd1 Nd2 Ka3 c3 Bb2 Qc4 Qc1 c2 Bc3 Rg8 Bh8 Rg6 Re1 Nf1 Qe7 Bg2 Qf6 h1R Be7 Rgh6 Bd8 R6h2 g6+ Kg8 g7 Kh7 Qe5 Bd2 Bg5 Bc3 Qf6 Ba5 Qd2 c1Q+ Qdb2 Qa1 Qc1 Qg1 Re2 Qe3 Rb2 Be1 Rb1 Qf2 Nd2 Nd8 Bd3 Qg8 Bh4 Qe3 Bc2 Bc6 Nf3 Qc4 Be4 Bd5 Nb2 Nf7 Nd1 Bg6 g8Q+ Kh6 Qe5 Bf5 Qg3 Kh7 Qf6 Rc2 Bg5 Qf2
r5N1/3p1bBN/RrQ1rq1N/4bB2/1Qr2b1K/PN1n1n2/Q2PkB2/n3r3 w - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 f5 exf5 a5 b4 axb4 a3 c4 Ra2 Ra5 Rb2 Ra8 Rb3 cxb3 h4 Kf7 f4 Kf6 Kf2 g5 Kg3 e5 c4 b5 c5 b2 h6 e4 h7 g4 h5 b3 c6 e3 c7 b4 h6 e2 Qe1 Bg7 Rh4 Bb7 c8Q Na6 Qc5 Bd5 Nf3 Bf7 Nc3 b1R Bh3 b2 Nd4 b3 Qd1 e1N Qc2 Qf8 Qc6+ Qd6 Rh5 Nd3 Kh4 g3 Rg5 g2 Rg6+ Ke7 Ne4 g1B Bg4 Nac5 Nf6 Bh2 Qc4 Ra1 Qc2 b1R Qa2 Re8 Bb2 Re1 Bc3 b2 Nb3 b1R Bd4 Rb2 Bf2 Rac1 Bh3 Rc4 Bg4 Kd8 Bh3 R8e6 Bg4 Ne7 Ng8 Be5 f6 Nd5 f5 Bhf4 Bh3 N5b4 Bg4 Be8 f7 Ne4 f8N Nc2 f6 Ng5 f7 Na1 Bf5 Rbb1 Nf6 Rg8 h8B Ke7 h7 Qd4 Bg7 Qb6 Qg2 Kd6 h8N Qa6 N8h7 Rf8 Nd4 Kc5 Ng8 Rbb6 Nb3+ Kb5 Ngf6 Rg8 f8Q Bf7 Qd6 Ra8 Ng8 Qc8 Qb7 Qd8 Qbb8 Qf6 Qb4+ Kc6 Qc7+ Kd5 Rh6 Bh5 Nf7 Bg6 Bh3 Ke4 Bf5+ Kf3 Qcd6 Ke2 Qc6 Bh5 Rg6 Qe7 Rf6 Qd8 Nfh6 Bf7 Rg6 Qf6 Qf8 Rb7 Qcd6 Qd8 Ng4 Re8 N4h6 Rbb4 Re6 Qf6 Qc7 Rb5 Ra6 Re6 Qc6 Rb6 Qb4 Nf3+
r7/1b2RQ1n/B1k1r1q1/2PRr1b1/2qn1BRp/2n2n1P/3Q2Q1/2N1qBBK w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 exf5 g5 f4 Qb6 f6 Qd8 f5 Bh6 Nc3 Bg7 Nce2 Bf8 Nf4 gxf4 Kf2 a5 c4 h5 g4 d5 Kg2 Kd7 b4 e5 b6 e4 c5 a4 g5 h4 b5 e3 g6 e2 f7 d3 b7 d2 f6 a3 g7 d4 b6 a2 h3 e1N+ Kh2 f3 Ne2 d3 Rg1 f2 Kh1 Be7 f8R Nf3 f7 Qe8 Rg4 Nc6 b8Q Nf6 g8B Nh7 b7 Bg5 Qh2 Ncd4 b8B Bb7 Qg2 Kc6 Bh2 Ra6 Qc2 d1R Bg1 Re1 Bf4 d2 Rd1 a1Q Nc1 Re5 Qb2 Qe6 Re8 Qg6 f8Q Qa4 Bb3 Qc4 Qf7 Rf8 Re7 Rfa8 Bc2 Rb6 Bcd3 Rba6 Re1 d1N Qd2 Nc3 Re4 Kb5 Rd7 Rae6 Rd5 Kc6 Bde2 Qa2 Ba6 Qc4 Be2 f1Q Re3 Qe1 Bf1 Rf6 Re4 Ref5 Re8 Re6 Re7 Rfe5
1n2b3/1nrRb2k/1K1qb1n1/r3p3/2QB1B1N/Q2QP2R/B1r2P1R/2q1rQ2 w - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 f5 e3 f4 Nc3 Bb7 Ke2 f3+ Kd3 Bc8 Nce2 fxe2 Kc3 Nd7 Kc2 Nb8 Kb3 Kf7 Kb4 Kg6 Kc5 e1Q g4 a5 b4 h5 d4 h3 d6 a4 g5 h4 d7 h2 b6 c6 d5 e6+ d6 h3 b5 a3 b7 a2 b6 Be7 Bb2 Kh7 Nf3 Ra5+ Bb5 Qd2 Nh4 Qc1+ Bc3 Qf8 d8R Qf4 Rb1 a1N Rd7 Qf8 Qf1 Nb3+ Kb4 Nc5 Bd4 Qf6 Bc4 Qf4 Ba2 Qe5 Rg1 h1B Rg3 h2 Rh3 Bd5 Ra1 h1R Rb1 Bf3 Rh2 Bh5 g6+ Kh6 g7 Be8 Rh3 Rh7 Ra1 Nf6 g8Q Nh5 Qg4 Nf4 Qge2 Qd5 Qb2 Ng6 Qa3 Rg7 Qc4 Kh7 Rh2 Qc2 Rg1 Qc1 Rg3 Rf7 Rgh3 Qe5 Rc7 Rf1 d7 Qd6 d8Q Re1 Qf1 Nbd7 b8Q Nb7+ Bc5 Rg7 Qa8 Rf7 Qaa6 Nb8 Rd7 Rg7 Qac4 Rf7 Kb3 Rg7 Bd4 c5 Qc2 c4+ Kc3 Nc5 Kb4 c3 b7 Rf7 Qcd3 c2 Qc7 Rg7 Be5 Rf7 Bf4 e5 Kc4 Nba6 b8B Nb7 Ba7 Nb8 Bd4 Qb6 Rd5 Qd6 Qcc5 Be6 Qc6 Ra7 Kb5 Ra5+ Kb6 Bf6 Qa6 Rc7 Q3d3 Be7 Qa8 Qda3 Rd7 Qd6 Qaa6 Qd2 Qa3 c1R Qab5 Rc2 Qbd3 Qd5 Qcc3 Qc1 Qcc4 Qd6+
q2Rnk2/Bqp1q2r/K1b1r3/2P2b1N/3N4/PQN3Rb/5Rnb/rQ2NQ2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 dxe5 g6 f5 Bg7 Bh3 Bh6 fxg6 Bg7 g5 Bf8 Bg4 hxg4 Kd2 d5 Kd3 b5 h4 f5 e4 g3 c4 g2 e6 b3 h5 d4 e7 b2 e5 f4 g7 f3 g6 f2 h6 f1R a3 b4 h7 b3 Rh3 Ba6 Rg3 Bb5 Nf3 g1Q Ra2 Nh6 g8R Nf5 g7 Ne3 Nc3 Qh1 Ne1 Ng2 Be3 Ra6 Qb1 Re6 Bg1 Kf7 e8N Nd7 Nf6 Bd6 Nh5 Qe7 Rd8 Nf6 g8N Ne8 Nh6+ Kf8 Nf5 Bc6 Be3 Rg8 h8Q Rg1 Qh6+ Rg7 Qf4 Rf7 Qf1 Rh7 Kd2 d3 Ba7 Qh2 c5 Qh1 Qd1 b1Q Nd4+ Qf7 Qc2 b2 Qb3 Qf6 Ncb5 Qf7 Kc3 d2 Kc4 d1B Nc3 Bg4 Kb4 Bf5 Ka5 Qe7 Ka6 Qe4 Qf2 b1B Qf1 Qf3 Rf2 Bbe4 Qb1 Bh3 Qb3 Bef5 Qb1 Rf6 e6 Qd5 Re3 Bh2 Rg3 Ba4 Qb3 Qa8 Qb1 Bc6 Qb3 Qd7 Qb1 Qd6 e7+ Kf7 Qfb5 Bb7+ Ka5 Nf4 Ng2 Ng7 Qc2 Ra1 Ne1 Qhd5 Qd1 Ng2 Qbb1 Qb3 Qdc2 Bc6 Ka6 Qd7 Qcb2 Qe8 Q2a2 Qf8 e8Q+ Kg8 Qee2 Re6 Rd6 Qe7 Qf1 Kf8 Rd8+ Ne8 Qab2 Qb4 Qb3 Qbb7+
3k2qR/Nr4rb/1pQ1r1qB/P3b2N/NP4nb/5b2/1RQnR3/1KQn1Q2 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 a4 c4 d5 cxd5 gxh4 Bc4 Bh6 Bb3 axb3 Qe2 Bg7 Qd1 Bf8 f4 c5 d4 h5 Kd2 e5 a4 h3 g4 c4 a5 e4 f6 h4 f5 b6 d6 h2 g5 b2 Kc2 e3 d5 e2 f7+ Kd7 g6 e1B g7 h3 f6 c3 Bh6 Na6 Ne2 Bh4 Re1 h1N Nf4 h2 Re2 Ra7 Nh5 Rb7 Ra2 Rh7 Qc1 Be7 f8Q Nf2 f7 Nf6 g8R h1B Qg7 Nc5 f8Q N6g4 Qg6 Nd1 Qf1 Bf3 Rh8 Qg8 Qe4 Ke8 d7+ Kd8 Qf5 Nb3 Qg6 Kc7 d8N Rg7 Nc6 Nd2 Na7 Kd8 d6 Bef6 d7 Bd4 Qc6 Be5 Na3 b1R Rb2 Ra1 N3b5 Ra3 Kd3 c2+ Nc3 Ra2 Na4 Ra1 Qb1 c1Q Qbc2 Qb1 Nf4 Qa2 Nh5 Qf7 Qc1 Ra3+ Kc2 Re3 Qe6 Ne4 Kb1 Qg6 Qa2 Rc3 Qb3 Rc6 Qbc3 Re6 Q3c2 Rb8 Qc6 Ba6 Q1c2 Rb7 Qc1 Bd3+ Q6c2 Ke7 d8Q+ Kf7 Qc8 Ke7 Nc5 Q6f7 Ka1 Nd2 Na4 Bh7 Q8c6 Qg6 Ka2 Kd8 Ka1 Nb3+ Kb1 Nd2+
1q1Nrqr1/2pk1bBR/4q1B1/5Pbn/2Pb4/Rq4n1/Q1QR2Q1/1BK2Qn1 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Nc3 h4 Ne4 Qg5 Ng3 hxg3 Qd5 Qh4 Qd1 Qd8 Kd2 a5 c4 d5 b4 g5 h4 g2 f4 g3 e4 d4 e6 g4 b6 d3 b5 a4 b7 a3 f5 a2 e7 Nf6 e5 Ra5 h5 Nd5 h6 Ra8 h7 Nd7 b8R Ra6 b6 Rg8 h8Q Ne3 b7 Ra8 Qc2 Nf6 Rh7 Bh6 Ne2 g1B Nf4 g2 Bb2 g3 Ne6 Kd7 Qg7 Qf8 Kc1 Bg5 Nd8 Nh5 Bc3 Bf2 Bd4 g1N e6+ Kd6 e8Q g2 e7 Be6 Qea4 Bf7 e8B d2+ Kb2 d1Q Bd3 Qf3 Kc1 Qe2 Qa5 Nf1+ Qad2 Qe4 Rc8 Bfe3 b8Q Nfg3 Qbb1 Qe6 Qg6 Bf2 Bg7 Bd4 Rb8 Ke7 Rb3 Rb8 Ra3 Rc8 Qf4 Ra8 Qbb2 Rc8 Rb1 a1Q Qa2 Qc3 Rb2 Qb3 Be4 Bh4 Qf1 Ra8 Qc3 Bg5+ Rd2 Rc8 Bb1 Rb8 Bc6 Rc8 Bd5 Kd7 Qcc2 Qb8 Nb7 Re8 Nd8 Nh3 Bf3 g1Q Be2 Qge3 Bg4 N5f4 Bf3 Qeb3 Bh5 Bh6 Qg5 Ng1 Bg6 Nfh5 Qg4 Be3 Qgf3 Bh6 Q3g2 Bg5
1qRQ3Q/r2n1P2/1bn1rp2/2Nrn2Q/1Kb2b1N/5Q2/NBqkBPn1/B7 w - - 0 1 illegal: No proof kernel
B1r1Q1Qn/p1BB1b2/1R3q2/QN2N1B1/n2N1r1q/Pq2brPK/1k2br2/8 w - - 0 1 illegal: No possible last move, all moves rejected
1n1NRN2/2pN1n2/2nk2nR/rnr3r1/2r1bb2/QBQ1R2R/2P1K1P1/1Q5q w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 e4 Ke7 e6 f6 e5 Ba6 Bf4 Bc8 Bg3 Ke8 e7 Kf7 e6+ Kg7 Be5 fxe5 Qe2 Kg6 Qd1 Kf6 e8N+ Ke7 b4 a5 f4 d5 b6 h5 f5 h3 b5 a4 b7 a3 b6 h2 Bd3 a2 Be2 e4 Nh3 e3 Nf2 d4 Nd2 d3 Rf1 h1R Nb3 h4 Bh5 e2 Rc1 a1N Nd4 h3 Nf6 h2 N2g4 Bh6 Ne5 Ra5 Qd2 Nb3 Ndc6+ Kd6 e7 Bf4 e8R Nh6 Ng6 Nd4 Nf8 Nf7 Re3 Rg8 N6d7 Rg5 Qc3 d2+ Kf2 e1N f6 Qe7 Nd8 Ndc6 Ke2 d1N Rf3 Nd3 Rh3 Nde5 Ra1 Rc5 Ra6 Ng6 Bf3 Rf1 Bd5 h1R Bb3 Qe8 Rf3 Rhh5 Rh3 Nfe5 f7 Qe7 Nf6 Bf5 N6d7 Ra5 Nfe6 Be4 f8Q Bh2 Qf3 Bf4 Nef8 Qh7 Qg3 Nf7 Qf3 Rgc5 Qg3 Rhg5 Qf3 Na7 Qg3 Nbc6 b8R Rf3 Ra8 Nb8 b7+ Nac6 Rb6 Nb2 Rba6 Nc4 Rb6 Rf1 Qf3 Na3 Qg3 Na6 b8Q Rb1 Qb7 Nb8 Rba6 Rh1 Qbb4 Rh2 Qge1 Rh1 Qb1 Nb5 Qa3 Rd1 Rhg3 Qh1 Rh3 Rd4 Rb6 Rc4 Rba6 Kd5 Rb6 Nb4 Re6 N4c6 Rf6 Ngh8 Rfh6 Ng6 Nb7 Na6 Re8 Nab8 Nd8 Kd6
1bBNQ3/1r1pR1qk/2N5/3P1nr1/1R1r1n2/nRQ2N2/QPb5/b1Kb1N1n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 a4 gxh4 axb5 Qc7 d5 Qb6 Be3 Qd8 Bd4 cxd4 Kd2 Kf7 g4 Kg7 c4 a5 f4 h5 c5 e5 c6 a4 g5 h3 c7 h2 b6 d3 b7 e4 g6 a3 Qc2 a2 Qc5 e3+ Kd1 e2+ Kc1 e1N Qc2 h4 Nd2 h3 Qa4 Ra7 f6+ Kh6 g7 Bb4 f7 Nf6 f8Q Nc2 f5 Qe7 Qe8 Nh5 g8R Nc6 b8Q N6d4 f6 Nf5 f7 Ba6 c8N Bd6 Qbb3 Bb8 Rg7 Rg8 f8N Qe5 Rf7 Rg5 Ne7 Nf4 Ne6 Qg7 Nc6 Kh7 Ned8 Bc4 Qbb4 Bb3 Re7 Rc7 Be2 Ra7 Nf1 d2+ Kd1 Rc7 Ba6 Ra7 Rc1 a1B Qa2 Rc7 Bc8 Rb7 Qc4 Na3+ Qc2 Bc4 Qcb3 Bd3 Rc4 Bb1 Rb4 Bd3 Ne2 Be4 Rg1 h1B Rg2 h2 Rg3 Bhf3 Qc2 Bh5 Rgb3 h1N Qd3 Nb1 Kc2 d1R Ned4 Rd2+ Kc1 Na3 Qc4 Bc2 Qc3 Bhd1 Nf3 Rd4
N1rQ3b/k4n2/pn2rR1q/2n2N2/nQB1qQR1/1R6/P1K1Pqb1/4Nq1N w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 g5 c4 d5 h4 Kd7 f4 Kc7 h5 b5 h6 Kb7 h7 d4 f5 b4 e6 d3 f6 b3 e7 g2 e8N b2 f7 a6 c6+ Ka7 c5 g3 c7 g4 c6 Nd7 Nc3 b1N+ Kc1 d2+ Kc2 Qh4 Ng7 Qh6 Rh3 Nb6 Nf5 Bb7 c8R Bg7 Nf3 g1Q f8Q g2 c7 g3 Qe1 d1N Ne4 Nb2 Qeb4 Qf2 Ne1 g1Q Bg2 Nc3 Rc1 Qff1 Nf2 N2a4 Nh1 Qgf2 Bd5 g2 Bc4 Ne4 Rb3 g1Q Qf6 Bd5 Rf8 Re8 Qd4 Bc6 Rf6 Nec5 Qf4 Qgg2 Ra1 Re6 c8N+ Kb7 Rab1 Qgg6 Rg3 Bg2 Rbb3 Qe8 Rg4 Qc6 Nce7 Ka7 Nd5 Qb7 Nc7 Qe4+ Kc1 Qhh4 Kd1 Nh6 Na8 Rc8 h8Q Nf7 Qd8 Bh8 Kc1 Qh6 Kd1 Qd5+ Kc2 Qe4+
1Nkb4/4bKp1/N4rN1/3RBqPq/2P2p1n/BQN1qQ2/1rBrQ2n/5b2 w - - 0 1 illegal: No possible last move, all moves rejected
2BQQ3/2NB3b/NnNq4/Bbnp4/4rP1q/Rq1PbkpQ/6nQ/5Kr1 w - - 0 1 illegal: No possible last move, all moves rejected
B1N1qk2/8/2n2b2/rqNKpb1P/1pBB1bB1/2rQn3/1R1nP1q1/1Q2N1Q1 w - - 0 1 illegal: No possible last move
3B1BK1/QR1pR2B/1r1n1q1b/3b2NR/r2bB1nr/4p1PQ/2QP1k2/1q3n2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Nc3 Qc7 Na2 Bg7 axb5 Bh6 b6 Qd8 b5 Bf8 Nb4 cxb4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 h5 c4 a5 b7 a4 f6 b3 c5 e6 c6 b2 b6 b1Q f7 h3 f4+ Kh4 c7 Kg3 f5 h2 f6 a3 Nf3 h4 Ng5 h3 Bb2 a2 Qc2 Ne7 Bd3 Rh6 Bh7 Nf5 Ba3 Ra4 Be7 Bg7 f8Q Nd6 Qh8 Kf2 Re1 Bf8 f7 h1R Re4 Rh4 Kf6 Bh6 f8B Nc6 b8R e5 b7 h2 Re3 e4 g3 Ne5 Re1 Nec4 Kg6 Ne3 Bf6 Ndf5 Kf7 Nd6+ Kg8 Nf1 Re3 Qe7 Re1 Qe5 Bd8 Qf6 Re3 Rg1 Re1 h1N Re3 Qbb2 Rb1 Qc1 Rb5 a1B Re5 Qd1 Re7 Bc3 Rd3 e3 Rd5 Qa1 Qg7 Qd4 Qf7+ Kg2 Nh3 Nh2 Qfg6 Rb1 Qg4 Qf6 Rh5 Nf1 Ng5 Nf2 Qh3+ Kg1 Ra8 Ng4 b8Q Rb5 Qa7 Qb1 Rb8 Bb7 c8B Be4 Ba6 Bd4 Rb7 Rb6 Bd3 Bh1 Bdg6 Kf2 Bf5 Bc6 Be4 Bd5+
B1b5/1r3nbp/R3R3/1rN1BKBr/1knQ3Q/1b1RQ2p/q5PP/b1R3b1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g6 f4 exf4 Nc3 Nd7 Ne4 Nb8 Ng3 g5 Nf5 Bc5 Nh4 gxh4 Ra5 Bd6 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 b6 c5 d6 a5 b7 f3 d7 c4 d5 f2 d6 f6 Nf3 c3 Ng5 c2 Ne6 a4 Kf5 h3 e4 a3 e5 a2 Ba6 f1B Qd4+ Bc4 Bg5 c1B Nc5 Ra7 e6 Bg7 e7 Qa5 e8Q Be3 Rhc1 Bg1 Qee3 Nc6 b8B Ne5 Bb7 Qa4 Ba8 Rb7 Qdd3 Bb3 Qdd4+ Nc4 Qh4 Rb5 Bc7 Ba6 d8Q Bc8+ d7 Qa7 Be5 Nh6+ Kf4 Nf7 Kf5 Re8 Qb6 Re6 d8R Qa6 Rd6 Re7+ Re6 Rb7 Qd6 Qa7 Qdd4 Qa6 Rc3 Qa4 Rac1 a1B Rd3 Qa2 Kg4 Ba4 b3 f5+ Kf4 Ka3 b4+ Bb3 Ra6+ Ra5 b5 Kb4 b6 Rb5 Kf3 f4 Ke4 f3 Kf4 Rd7 b7 f2 b8R f1R+ Kg4 Rf5 Rbb6 Rb7 Rh6 Rf3+ Rhe6 Rg3+ Kf5 Rg4 Qhg3 Rh4 Qgf4 Rh6 Qh4 Rh5
2Q3b1/brQbnpB1/2BRN2q/3Q1N2/7N/KB2b1pr/1n1BPkPb/4r3 w - - 0 1 illegal: No proof kernel forced: bxLB
3Q1n1K/3r1pB1/2nq1PP1/1N1r4/rB2kbbb/Q2Rb3/1pBR4/Rb3QB1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 g5 hxg5 dxe4 Nc3 Bh3 Na2 Bg4 axb5 Bf5 b6 Bh3 b5 Bc8 Nb4 cxb4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 a5 g4 h5 c4+ Ke6 b7 h4 b6 a4 c5 Kd5 g6 e6 g7 h3 g5 a3 g6 h2 c6 e3 c7 b3 Bd3 b2 Nf3 a2 Bd2 e2 Bb4 e1B Bc2 Qe8 Kg5 Nh6 Kf6 e5 g8R Bc5 Kg7 Nd7 b8B e4 b7 e3 Ba7 e2 b8B Qe6 Rd8 Bd2 Qf1 e1B Rd1 Bf4 Rd3 Ke4 d5 a1R d6 Ra6 Nd4 Ng4 Nb5 Nf8 d7 Rh5 Kg8 Re5 Kh8 Bce3 Bd4 Ra3 Bba7 Rd5 Bg7 Ra4 Rg1 h1B Bb6 Bh6 f4 Bh4 f5 Bhf4 f6 Ne5 Bd4 R8a7 Bb6 Bb7 c8Q Qd6 Qc3 Bf3 Qa3 Bg4 Rh1 Nc6 B6c5 Bd2 Bg1 Bc1 Rh2 Ba6 Ra8 Bce3 d8Q Rd7 Rhd2 Bb7 Ra5 Ba6 Na7 Bc4 Nb5 Ba2 Qb3 Bb1 Qc3 Ra3 Ra8 Rb3 Ra1 Ra3 Qb3 Ra5 Qa3 Ra4
2KR1rQ1/p3Q2P/1b2Nrn1/2n1Rb1R/1r2qB2/PpR2B1r/1k1r1Q2/6Bn w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 hxg4 Nd2 f4 Ne4 Rh6 Ng3 fxg3 Bd2 Rh5 Bc1 Rh8 Kd2 Ke7 Kc3 Ke6 Kc4 d5+ Kb5 g5 f4 b6 e4 d4 c4 d3 h4 g2 c6 d2 f5+ Ke7 c5 g3 a3 g4 f6+ Ke6 h5 Qd7 f7 Nh6 Nf3 g1N Bg2 Qd8 c7 Na6 Kc6 b5 Qe1 d1R Bf4 b4 Rc1 b3 Rc3 Qh4 Qf2 Nf5 h6 Ne2 h7 Rd2 Rh3 Rb8 Rh2 Bg7 f8B Rb4 Bd6 Qe7 Rh5 Rf8 Be3 Nf4 Nd4+ Kf7 e6+ Kf6 Bh1 Ng6 Bf3 g2 Bg3 g1R Bgf4 Qd8 e7 g3 e8Q g2 Qd7 Qe7 Ne6 Rf1 Qd8 g1R e5+ Kf7 Bd4 Ng3 Bde3 Bh8 Bd4 Qe8+ Kd6 Bd7 c8R Rh1 c6 Nc5 Kc7 Rh3 Qg5 Nh1 Rd8 Ne4 Bb6 Nc5 Kb8 Bc8 c7 Qc6 Qgh4 Qe4 Qg5 Bd7 c8Q Bg7 Nc7 Bh8 e6+ Kg7 e7 Bf5 e8R Kf7 Qgg1 Bd4 Qd7+ Kf6 Ne6 Be3 Kc8 Bd4 Bh6 Ke5 Qg4 Nh4 Qg8 Ng6 Qe7 Be3 Rdd3 Bd4 Re3 Rf6 Bf4+ Kd5 Rcd3 Kc4 Re1 Be3 Rdd8 Kc3 Rc1+ Kb2 Rc3 Rc2 Rd5 Rd2 Red8 Rf8 Re5 Na6 Bc7 Bb6 Bh2 Nc5 Bg1 Rf6 Qh2 Nb7 Bd1 Rf7 Rec5 Bg4 Qg3 R1f5 Bf3 Rf8 Qf2 R5f6 Bf4 Bf5 Re5 Nc5
7k/KB1pnBR1/Q2P2q1/r3nnbN/p2n3B/1rR1nPQ1/7Q/1q1b1Q1R w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Nc3 Qc7 Na2 Bg7 axb5 Bh6 b6 Qd8 b5 Bf8 Nb4 cxb4 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 a5 d4 h3 c4 a4 g4 b3 f3 h2 f6+ Kh7 d5 b2 b7 b1Q g5 h4 b6 h3 f7 Qb2 Ra3 Bh6 f8R e5 Rc3 e4 Ne2 e3 Nf4 e2 Nh5 Nc6 b8Q e1N b7 Qb1 Qg3 Nc2 b8Q Nge7 Rg8 N6d4 d6 Qe8 Qb2 Qf7 Kb6 Ba6 c5 Qg6 c6 Be2 c7 Ne3 c8Q Ra5 Qd3 Bd1 Qca6 Nec2 Ka7 Ne3 Rg1 h1N Qbh2 Nf2 Rh1 Nfg4 Bd2 Nc4 Be1 Nce5 Qc4 Ne3 Bd3 Bf8 Be4 Bg7 Qf1 Bf6 Re8 Rf8 Bb7 Kh8 Ra8 Rb8 Bf2 Qe8 g6 Bg5 g7+ Kh7 g8B+ Kh8 Bc6 Rb3 Bb7 Qeg6 Rf8 Qgc2 Rf7 Qg6 Qhg1 h2 Rg7 Rb6 Bf7 Rb4 Qg1g2 Rb3 Rg1 h1N Q2h2 N3f5 Be1 Nf2 Rh1 Nfg4 Bd2 Bh6 Bg5 Nge3 Bh4 Bg5
1Q3QnK/R1q1bN2/q2p1rR1/3P2Nn/3RQ1r1/1b3B2/nP1pnR1N/k5n1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 a4 gxh4 axb5 Qc7 d5 Qb6 Be3 Qd8 Bd4 cxd4 Kd2 e5 Kd3 Ke7 Ke4 Kd6 c4 Kc5 f4 Kb4 g4 a5 f6 h5 Kf5 h3 Kg6 h2 f7 a4 b6 a3 b7 e4 c5 e3 g5 e2 c6 e1N c7 a2 f5 d6 f6 d3 Be2 h4 Bg4 d2 Nc3 h3 Qc2 Rh4 Qd3 Kb3 Nf3 Nc6 b8Q+ Nb4 Qe4 Ba6 c8R Qc7 Rg1 h1N Nh2 Ng3 Bf3 Rg4 Kh7 Ne2 g6 Be7 f8Q Bc4 g7 Ra4 f7 Rf4 Nf1 h2 Rg6 h1N Nh2 Nhg3 Kh8 Nh5 Re8 Rf6 Rc8 Qa7 Rc7 Qa6 Ra7 Qb7 Rc1 a1Q Rc2 Na2 Rc1 Nh6 g8N Rb4 Rc2 Qc7 Rc1 Ng2 Rg1 Ngf4 R1g4 Nh3 Rf4 Nhg1 Rh4 Ng4 Nh6 Qf1 Qf4 Kc2 Ne4 Kb1 Ng5 Ka1 Qe4 Ra4 Qg7 Bb3 f8R Rd4 Nhf7 Nh6 Qe6 Nf5 Bg4 Neg3 Re8 Bf8 Bf3 Ne7 Qg4 Ng8 Re2 Re4 Rf2 Be7 Qgf8 Qa6 Qe6 N3e2 Rf4 Re5 Rd4 Re4 Qe5 Rh4 Qe4 Rg4
2Q1n2Q/3Qp1q1/P4Nk1/N3b3/1rRRN2q/N2bP2B/nnnnp2K/R5r1 w - - 0 1 illegal: No extended proof kernel
1r1Q1q2/1B1QQ3/2nb1RNQ/1qn2NBp/2P1n3/2bk2p1/Nbb3PB/2r4K w - - 0 1 illegal: No proof kernel
bq1rQ1Nb/4rRpQ/N2N4/5r2/n3RP2/1B1KN1p1/1R1q2Pn/k1r2n1Q w - - 0 1 illegal: Other
k2r1N1K/p2b1RbR/N1P1Qb1b/P1N1q2R/1nrp4/4N1Q1/3Q2B1/n1r3q1 w - - 0 1 illegal: No possible last move
5kNn/2Q1N1n1/pb1QrbPB/2K5/Pn2B1q1/1r1bBR1Q/n1pN1N2/5q2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 bxc5 Qb6 Bb2 Qc7 Bc1 Qd8 c4 d5 a4 Qd7 c6 Nf6 c5 Ng8 Ra3 Qd6 Rc3 Qd8 Rc4 dxc4 Ke2 h5 Ke3 b5 d4 e5 g4 a6 f4 c3 f6 e4 c7 h3 g5 b4 c6 h2 d5 b3 Kd4 c2 d6 h4 g6 h3 f5 e3 Nd2 e2 Nb1 e1B Kd5 b2 Qg4 Bg7 f7+ Kf8 d7 Ba5 Qg3 Nh6 Bd3 Qh4 Kc5 Bf6 Nd2 b1N Be4 Qg4 d8N Bb7 c8N Nc3 c7 Nc6 Ne7 Rb8 c8Q Nb4 Qcc7 Nca2 Ng8 Bd5 Qh4 Bc4 Nc6 Bd3 Nce7 Rb7 Nc4 Rb6 Be3 Re6 Nd2 Rh7 Ngf3 Rg7 Rf1 h1Q Ng5 h2 Rf3 Qf1 Nh3 h1N Nf2 Ng3 Qh3 Nh5 Qh4 Bg5 Nc8 Nd5 Qh3 Rh7 Qa7 Kg7 Nf6 Rh8 Ne7 Rb8 Nfg8 Rb3 Qc7 Ndb4 f8B+ Kh8 Qhg3 Nf7 Bh6 Bh4 Bhg5 Kg7 Qh3 Nh8 Bgf4 Kf8 Bg5 Ng7 Bh6 Ke8 f6 Rb6 Qcg3 Re6 f7+ Kd8 f8Q+ Kd7 Qff4 Ke8 Qc7 Bf6 Qgh2 Kf8 Qhd6 Bb6+
3B2qn/2p1b2q/2p1BrQ1/1q2PB2/k2r4/2P1B1nR/n1NQ1q2/KbNNQ3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 b4 exf4 a4 Bd6 axb5 Bc5 Ra6 Bf8 Rc6 dxc6 g4 Kd7 d4 h5 Kd2 f5 Kc3 a5 Kb2 a4 e4 f3 e5 h4 g6 h3 g7 h2 b6 f4 b5 a3+ Ka1 f2 g5 a2 g6 f3 d5 Ne7 g8Q Na6 g7 Nb4 d6 Ra4 b7 Ng6 b8Q Be7 b6 Rh6 b7 Nh8 Ne2 Rf6 Be3 Qf8 Qf7 Qg8 Qg6 Ke6 Qe1 Kd5 d7 Kc4 d8B Kb5 Bh3 f1Q Bf5 f2 Nc1 Ka5 Nc3 Qb5 Nd1 f1N c3 Ng3 Qd2 Be6 Qe1 Bb3 Qc8 Bc2 b8N Be4 Qd7 Bb1 Rf1 h1Q Rf3 Qg1 Qdd2 Qf2 Na6 Qh7 Rf4 Qg8 Rh4 Qh7 Rh3 Qg8 Kb2 Qh7 g8B a1Q+ Kb3 Na2+ Nb4 Qd3 Nc2 Rd4 Bge6 Qb5+ Nb4 Qg8 Ka3 Be4 Kb3 Qb1+ Ka3 Q1d3 Kb2 Ka4 Ka1 Qdc4 Rh4 Bb1 Nc2 Qd3 Rh3 Qe4 Qg1 Qh4 Qge1 Qhh7
5Q1B/3nK2B/B1N4p/q1PNNQn1/2b1bn2/b1npR1rQ/2q4P/1k3Br1 w - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 e5 fxe5 Qb6 axb5 Qd8 Ra6 g6 Rf6 g5 Rf4 gxf4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 c4 d3 b6 a4 g3 d2 b7 a3 e6 f3 b5 f2 b6 a2 e7 a1Q Kd6 Ke4 g4 f5 g5 f4 g6 h6 g7 f3 Bb2 Qa2 Qb3 Nf6 g8B d1N Nc3+ Ke3 Qc2 Ra3 Bh7 Rg8 Qf5 Kd2 e4 Kc2 Nd5 Nh5 Bh8 Kb1 e5+ Qc2 e6 Nc3 Qh3 Nf4 c5 Bg7 Ba6 f1B e8B f2 e7 Bc4 Nf3+ f1N Ne5 Bf6 Bh5 Rg1 e8Q Nd2 Qee6 Nf3 Qef5 Ng5 Be2 Bg7 Bf1 Qc7+ Ke7 d6+ Ke8 Nd7 b8N Bb7 Ke7 Ba8 b7 Qa5 Ne3 d5 Nbc6 d4 b8Q+ Bb7 Qbf8 Rb3 Nd8 Be4 Nd5 d3 Qg6 Rb6 Qgf5 Rg6 Ndc6 Rg3 Nf7 Bd4 Nfe5 Be3 Rg1 Bc1 Rg2 Ba3 Re2 Rg1 Re3 Nf3 Qh4 R6g3 Qhh3 Ng5
q6Q/1qp5/1R1bpQrR/Pr3B2/1qN1R3/qb1Q3n/1QP2nkn/B1BK4 w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 gxh5 e5 dxe5 d6 e6 Ra4 e7 Kd7 Qd4 Ra6 Qd1 Ra8 e8R Rh6 e4 Nf6 e5 Nc6 Nc3 Nb8 e6+ Kc6 e7 Rh7 Na4 Ng8 Nc5 Rh8 Ne6 fxe6 f4 g5 h4 b5 a4 d5 f5 g4 h6 b3 a5 d4 h5 Kd5 f6 Ke4 h7 g3 f7 b4 h6 b2 Bb5 b1Q Ne2 Kf3 Ra3+ d3 Ra2 b3 Bg5 b2 Bd2 g2 Ra1 g1N Ba6 Nc6 Rh4 Bd7 Nc1+ Kg2 Raa4 Nd4 Nb3 Rb8 Bc1 Nh3 Nd2 Rb5 Nc4 Qa8 Rb8 Nf6 e8Q Bd6 f8Q Rg8 h8B Rg6 h7 Ng4 Rh6 Ngf2 Qf6 Bc6 Qee7 Bd5 Rb6 Qa1 Qd8 b1Q Qb8 Qa3 Bg7 Qbb3 h8Q Qbb4+ Qd2 Nc6 Qdc3 d2+ Ke2 Ne5 Qd3 Neg4 Bb7 Nh1 Kd1 Nh2 Bc6 Rg3 Be8 Rg5 Bh5 Rg6 Bg4 Qb7 Bf5 Qa8 Qff8 Qb7 Ba1 N1f2+ Ke2 Qa8 Qb2 Qb7 Qff6 Qa8 Qbh8 d1Q+ Ke3 Qh1 Ke2 Qab3 Ne5 Q4a3 Re4 Qab4 Nc4 Q3a3 Ne5 Bb3 Nc4 Kg1 Re3 Qhb7 Re4 Qba4 Kd2 Kg2 Ke1 Q4b4+ Ke2 Nh1 Kd1 N1f2+
4R3/qp1qbBQQ/5B2/2qNpQnn/n5r1/5bPN/BPKNq3/2B3rk w - - 0 1 illegal: No proof kernel
BBbkB2Q/K3npN1/2p1n3/R1P1q2Q/2rrRP2/3Q4/2q1r2q/n1qQ1R2 w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 g5 Na3 b5 axb5 g4 h4 Qd4 Nc4 Qg7 Ne5 Kd8 Nef3 gxf3 g4 Ke8 g5 Qd4 g6 Bh6 Be2 Qd7 Bf1 Bg5 hxg5 Qd8 Kf2 e5 Ke3 h5 b4 a5 d4 f2 c4 h4 g7 a4 d5 h3 b6 h2 b5 a3 d6 a2 b7 Qe7 d7+ Kd8 b6 Qe6 g6 Rh7 Ba3 Qe8 Bd6 Qe7 Ne2 Rh4 Ng3 Ra7 Nf5 Nh6 g8B Rh5 g7 Ra4 Bh7 Na6 b8R Nc5 b7 Ne6 g8Q+ Qe8 c5 Rc4 Qh8 Ng8 Ng7 Ne7 Bg6 Rf5 Qhh5 Rf6 Bg2 f1Q Bf5 Qg1+ Kd2 e3+ Kd3 Qf2 Rf1 h1Q Bfe4 e2 Bc6 e1Q Ra8 Qa5 b8Q Qae1 Ra5 Qh2 Ba8 Rg6 Bgc6 Qfg2 Rb1 a1N Rb4 Qa2 Rba4 Rg2 Qb2 Re2 Qbd2 Rd4+ Kc3 e4 Bb5 Rd3+ Kb4 e3 Qc3 Rdd2 Qd3 Qc2 Bbc6 Qh8 Kb5 Qe8 Re4 Qh8 Qc3 Rd4 Qcd3 Rc4 Bab7 Rd2 Ka6 e2 Ka7 Qe8 Ba8 Qh8 Qa3 Rdd4 Qad3 Qed2 Ba4 e1R B4c6 Qdc1 Be5 Nf5 Ba4 Re2 Bb5 Ke7 Bbc6 Qe8 d8Q+ Kf8 Rg1 Ng5 Bd7 c6 Re1 Rb4 Rf1 Rbc4 Qf6 Qe6 Bb8 Qe5 Ne8 Ne6 Qfh8+ Ke7 Ng7 Ne3 Rh1 Nd5 Be8 Kd8 Rf1 Ne7
R1B1R3/rb3p1p/br2qnQ1/2Br1PQ1/RNB3Pn/2k5/5pK1/bn1B1Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 e5 axb5 Nf6 d4 cxd4 f5 Ba6 Nc3 Ng8 Nd5 Bc8 Nf4 exf4 Kf2 Ke7 g4 Kd6 c4 Ke5 b4 a5 e4 d5 g6 a4 c5 f3 g7 d3 b6 Kd4 b7 a3 c6 d2 b5 a2 b6 Qd7 c7 Bb4 e5 Nf6 g8Q Qc6 e6 Bc3 e7 Ra6 e8B Qe6 Ba4 Nc6 b8Q Bb7 c8B Ne5 Qg5 Rd8 Ba3 Rd7 Qe1 d1B Nh3 Be2 Bc5+ Kc4 Qc7 d4 Qd6 d3 Nf4 d2 Nd3 d1N+ Kg1 Bb2 Nb4 Nc3 Bd1 f2+ Kh2 Nf3+ Kg2 Nb1 Rh6 Ba8 b7 Rb6 b8R Bb7 Ra8 Bd3 Qc6 Rd5 Rg6 Be5 Rg8 Bd4 Qe2 Kc3 Re8 Bda6 Qeb5 Be5 Bc4 Nbd2 Rb1 a1R Rb2 Nb1 Ra2 Bf4 Ra5 Bc1 Ra4 Bb2 Bcb3 Ra2 Qf1 Ba1 Bc4 Qe1 Qh1 Nh5 Be6 Bb5 Bc8 Qe4 Qch6 Nf6 Qhg6 Qe6 Qf1 Ra3 Nd3 Ra2 Rb4 Ra7 Ra4 B5a6 Nb4 Nh4+
3B2br/pR2nR2/2n1P2N/br1r1QqB/2R1R3/k4Kpp/P2QB3/Qn1b4 w - - 0 1 legal: proof: g4 c5 d4 e5 dxe5 g6 h4 g5 Nc3 c4 Ne4 c3 bxc3 f6 c4 gxh4 c5 f5 g5 Kf7 Nf6 Ke7 Ng4 fxg4 Be3 Kf7 Bc1 Ke8 c4 Ke7 f4 d5 Kf2 b5 e4 h5 f5 b4 e6 h3 e5 b3 f6+ Ke8 g6 g3+ Kf3 d4 g7 h2 c6 b2 f7+ Ke7 c5 b1R c7 d3 c6 d2 Be2 h4 Nh3 Qd7 Nf2 h3 Re1 h1N Ng4 Nh6 g8Q Rb5 Qg7 Nf5 Nh6 Nf2 Rb1 Ne4 Rb3 Bb7 c8Q Qd8 c7 Nc6 Qc2 d1B Qd2 Ba6 Rb2 Rd5 Rb7 Bc4 Bb2 Rb5 Bc3 Rb8 Ba5 Nc3 Bb6 Nb1 Ba5 Rh7 Qh8 Bg7 f8R Rd5 Rf6 Nd6 Rf4 Nf5 Rf1 Bf6 Re4 Bg5 Bb6 Be3 Ba5 Bd4 Bb6 Bc3 Rf2 Ba5 Qg7+ Ke8 e7 Rh8 Qe6 Bcb3 c8R Bc4 Qef6 Bcb3 Bc7 Kd7 Qfg5 Ke6 e8B Nfe7 Bh5 Qg8 Bd8 Bc4 Rd7 Rbb5 Rb7 Bcb3 Qf8 Qg6 Qg7 Bc4 Qgf4 Qg5 Qff8 Rd4 Rcc7 Kd5 Qf5 Kc5 Qgf6 Bg8 e6+ Rd5 Qa1 Nc3 Re3 Kb4 Re4+ Ka3 Rf1 Ba4 Rc1 Nb1 Rcc4 Bd1 Rd7 Nc8 Rf7 N8e7
k2b1BQK/r2Q1pPn/1b6/1N4nB/4q1NN/1Brq3p/2Qpb2P/Q4Rn1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 d4 gxf4 b4 e5 d6 Bh6 d5 Bf8 Ra3 Qe7 Rd3 Qd8 Rd4 exd4 Kf2 Kd7 Kf3 a5 Ke4 h5 Kf5 c5 g4 h4 e4 h3 b6 c4 e5 a4 e6+ Ke8 d7+ Ke7 b7 Kd6 g5 Kc7 e7 f3 e8B c3 b5 f2 b6+ Kd6 g6 c2 Be2 f1Q+ Nf3 d3 Na3 Ra7 Bh6 c1N Qc2 Be7 Bf8 Qe1 Rf1 d2 Nh4 Nf6 Bh5 Na6 b8Q+ Nc7 b7 Ne2 Qa8 Nh7 b8N Ba6 Nc6 Ne6 Ne5 Neg5 Ng4 Ng1 g7 Bc4 Nb5+ Kc5 d6 Kb6 Qh1 a3 Qa8 a2 Qh1 Qc7 d8Q a1B d7 Bd4 Qda8 Bf2 d8Q Be2 Qd7 Bd8 Qac8 Qd6 Qha8 Rb7 Qa1 Ra7 Qcb2 Bf6 Be7 Bc4 Qc2 N5f3 Nd4 Nf8 Qda4 Be3 Qd8+ Kb7 Bd7 Qe2 Be6 Qg2 Qde8 Be2 Bb3 Qd8 Qab5+ Ka8 Qbd3 Bf2 Nb5 Bb6 Kf4 Rh6 Qh7 Qh1 Qg8 Bg5+ Kf5 Rc6 Bb4 Rc4 Qe7 Qd4 Qd7 Bgd8 Be7 Qd3+ Kf6 Ne1 Kg5 Rc3 Kh6 Qhe4 Bd6 Nef3 Bb4 Ng6 Kh7 Nf8+ Kh8 Nh7 Bf8 Nfg5
1KB1qq2/2R1P3/1p1BBR2/1k1bpQ1r/3RP2N/1pQ3n1/Qn1b4/Q3rq1b w - - 0 1 illegal: No proof kernel
3B2q1/KR3rQ1/b3BQ1p/1pQqb2n/1P4BN/Ppr5/nnk1B3/1R1R3q w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 c4 a4 Nc3 Bd6 Nb5 Bf8 b4 exf4 Nd4 d5 Nb3 axb3 cxd5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Ke7 e4 Kd6 d4 c5 g4 b5 e5+ Kc7 d6+ Kc6 d7 Kd5 g6 Ke4 g5 f5 a3 c4 g7 f3 d5 f4 d6 h6 e6 c3 e7 c2 e8B Ra5 g6 Ra7 Be2 Qe7 d8R Nf6 g8B Na6 d7 Nh5 g7 Qe5 Be6 Nc5 g8Q Qd5 Rb1 Ba6 Qg7 Na4 Rb8 Nb2 d8Q Rf7 Rb7 Bd6 Qdf6 Be5 B8d7 Rc8 Qe1 Rc4 Qc3 Rc6 Bd2 c1N Qc5 Na2 Bg4 Rc8 Bde6 Rcc7 Nh3 Rc8 Rhd1 Rcc7 Ng1 Rc8 Kf1 f2 Nf3 Rcc7 Nh4 Rc6 Bef3+ Kd3 Bc3+ Kc2 Be2 Qd8 Kg2 Qg8 Kf3 f1Q+ Ke4 f3 Kd5 f2 Bd2+ Nc4 Bg5 Qg2+ Qf3 f1Q Bd8 Bb8 Kd4 Qfh1 Qff6 Rc8 Qd6 Bc7 Kc5 Nb2 Qdf8 Bh2+ Kb6 Rc3 Ka7 Qd5 Qc5 Be5
7K/Nn1kq1Q1/P3bBQq/B1b1pB2/1pQN1prR/1P5Q/r4bn1/2N1r3 w - - 0 1 illegal: No proof kernel
1RbKNQ2/N1pQ2r1/8/1q1R1n2/rq3N1k/pr2nPRp/PQ6/b3QbB1 w - - 0 1 legal: proof: e4 b5 d4 e5 h4 g5 hxg5 f5 c4 bxc4 Bd3 Kf7 dxe5 Ba3 e6+ Ke8 e5 Bf8 Be4 fxe4 Kd2 Ke7 Ke3 d5 Kd4 a5 Kc5 h5 b4 d4 g4 h4 b5 a4 g6 c3 g5 c2 g7 h3 g6 d3 f3 d2 b6 a3 b7 e3 Ne2 Nh6 g8Q Nf7 g7 Ra6 Nf4 e2 Qe1 d1B Rg1 Qd3 Rg3 Nd6 Nc3 Ra4 Nb5 Rh7 Na7 Na6+ Kc6 Nf5 b8R Qb3 Bb2 c1R+ Bc3 Qb4 Qh8 Rb1 g8Q Rb3 Bd4 Bg7 Bg1 Bf6 Rc1 Rg7 Rc5 Bc2 Rd5 Bd3 Qf2 e1Q Qhh7 Qa5 Qb2 Bf1 Qgh8 Nh6 Qhb1 Qed2 Qe1 Qdb4 Qh7 Nf5 Qh6 Ke8 e7 Kf7 e8N Ke7 e6 Bc3 Qh7 Be5 Nd6 Kf6 e7 Bc3 e8Q Bd4 Qbc1 Ba1 Qd7 Ne3 Qcc2 Nc5 Qh8 Ne4 Qg2 Nf2 Qg8 Nfd1 Qgd2 Nf5 Qb2+ Qd4 Qh8 Nde3 Qhe8 Qe5 Qg8 Qb4 Qh8 Ng4 Qf8+ Kg5 Ne8 Kh4 Qdf7 Bca6 Kd7 Nge3 Kd8 Bb7 Qd7 Bc8 Rd2 Qec5 Rd5 Qcb5
1q3Brb/np2Q1bb/nB3pB1/R2N1q2/Qr1p1PN1/4PKn1/B2Q2N1/k7 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 Ra5 Rh5 Ra3 Rh1 Ra8 d4 e5 a4 Ke7 d6+ Ke8 d5 Qf6 Ra2 Qe7 Rd2 Qd8 Rd4 exd4 g4 Kd7 f4 c5 Kf2 h5 g6 f6 g7 c4 a5 b3 g5 h4 g6 c3 a6 b2 a7 h3 e3 h2 Nf3 c2 Bd3 Na6 Nh4 Rh5 Nc3 b1Q Qd2 Ne7 g8B Bg7 Kf3 Bh8 g7 Nc6 Ba3 c1B Bg6 Qf5 Ng2 Rb8 a8Q Na7 Bb4 Ba3 Ra1 h1N B8f7 Rg5 g8N Ng3 Nh6 Rh5 Ng4 Rh1 Nb5 Rb1 Nc7 Qe8 Bc5 Rb4 Bb6 Kd8 d7 Ke7 Be6 Kd6 d8Q+ Bd7 Bef7 Qee5 Qe8 Bb5 Ra2 Bd3 Qa4 Rg8 Qf8+ Qe7 Qg7 Qf8 Ra1 Qb8 Qh7 Ke7 d6+ Kd8 d7 Ke7 d8B+ Kd6 Qac2 Rb5 Re1 Qh5 Ra1 Bc5 Bb3 Rb4 Bgf7 Qe5 Qg7 Bh7 Nd5 Qf5 Be7+ Kc6 Bg6 Kb5 Ra3 Bd6 Ba2 Bc5 Bed8 Bf8 Qf7 Bfg7 Be7 Nc8 Bf8 Na7 Rb3 Ka4 Qe7 Rc4 Rb4+ Ka3 Rb5+ Rb4 Qcd1 Qc2 Ra5+ Kb2 Q1e2 Ka1 Qed1+ Qb1 Qa4 Qf5
3K1b1r/2r3Nn/b2k1rRn/2Rn3p/1p1p2P1/1N1qB3/1P3q1N/2Q1QRRQ w - - 0 1 illegal: No proof kernel
3Qb1R1/B2RbB1q/pp2N2k/B1b5/P1rR2nK/1p1B2nQ/bPr1b2Q/8 w - - 0 2 legal: proof: e4 c5 h4 f5 exf5 g6 c4 g5 Na3 gxh4 Nc2 d5 Nb4 cxb4 cxd5 Qa5 Qg4 Qc7 Qd1 Qd8 g4 Kf7 d4 Kg7 a4 e5 f4 h5 Kf2 e4 d6 h3 Kg3 e3 d5 a6 d7 h2 g5 b3 d6 e2 g6 Ne7 f6+ Kh6 f7 Rh7 g7 Nbc6 g8B Ne5 Nf3 Qc7 d8B Bf5 d7 Bb1 Qc2 Ba2 Kh4 Ng4 Ng5 Rc8 f5 e1B+ Qf2 Rg7 f6 Bb4 Bd3 Bc5 Rd1 h1B Qh2 Bf3 Be3 Be2 Ne6+ Rg5 Bg1 Rd5 Rd2 Rd4 Rad1 Rc4 Qh3 Qh2 Ba5 Qh1 d8Q b6 Bh2 Qe4 Bb8 Qh7 Ba7 Rc2 Rf1 Rc7 Rf4 Rc8 Qh2 Rc6 Rd4 Nf5+ Kh3 Bfe7 f8R h4 f7 Rc7 Re8 Ng3 f8Q+ Qg7 Qf5 Qh7 Bf7 Rc4 Kg2 h3+ Kg1 Rc3 Rg8 Ne5 Kf2 Ba3 Nf8 Bab4 Qg2 h2 Rd7 R7c4 Bc2 Nf1 R2d4 Bbc5 Bd3 Rc1 Ne6 R1c2 Rb7 h1B Qfh3+ Bh4+ Qgg3 Bc6 Re7 Be8 Rd7 Ng4+ Kg2 Bd6 Qhh2 Bb4 Kh3 Bc5 Qf3 Bhe7 Qfg2 Bed6 Kh4 Ng3 Qgh3 Be7+
6b1/3N3R/p2k1BQ1/2NpbrP1/Pbq1BpbQ/1nn1B1bN/B7/1r4KQ w - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 b5 c4 h6 cxb5 Bd6 a4 Bc5 b4 Bf8 g4 gxf4 g5 h5 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kf2 Ke7 e4 d5 h4 c5 e6 f5 e5 c4 b6 a6 h5 f3 b7 c3 h6 f4 b5 c2 h7 Nd7 b8N Qc7 b6 Ngf6 b7 Nc5 Nc3 Nb3 Be3 c1B Ne4 Qc4 Nc5 Bb2 Nh3 g3+ Kg1 g2 Nbd7 Ne4 b8B Nc3 Qe1 Ra7 Qh4 Rb7 Rh2 Rg8 h8Q Rg7 Bd3 Rf7 Bb1 Rf5 Ba2 Ba1 Rh1 f2+ Kh2 f1B Kg1 Ke8 e7 Be2 Ba7 Kf7 e8B+ Ke7 e6 Kd6 e7 Bg4 Bg6 Rb5 e8Q Be7 Nb6 Be6 Nbd7 Bg8 Bb6 Bf8 Bd8 Rb8 Bf6 Bb2 Kh2 g1B+ Kg2 Bf2 Kh2 Re5 Be4 Bg3+ Kg1 Rf5 Qeh5 Nb1 Qg7 Be5 Qgg6 Nc3 Qh8 Be7 Rh2 Bd8 Q8h5 Ba5 Qhh7 Bb4 Q7h5 Be2 Qf3 Rb6 Qh1 Bg4 Nf2 Nc1 Qh8 Ba3 Rh5 Rb2 Nh3 Nb3 Rh4 Bb4 Qhh5 Be2 Qg4 Bd1 Rh7 Rb1 Qh4 Bg4+
8/2Q3Q1/rB6/pnnQP2b/n2nRR1B/PBpkrp1Q/2nN4/bRK4q w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 b4 exf4 Na3 Qe7 bxc5 Nd7 c6 Nb8 c5 Qd8 Nc4 dxc4 h4 Ke7 e4 Kf6 d4 g5 Kd2 a5 h6 b5 a3 f3 h7 b4 d5 Ke5 d6 Kd4 c7 f5 h5 f2 c6 b3 d7 b2 h6 g4 Qf3 b1N+ Kd1 g3 Kc2 g2 Ra2 f4 Bb2+ Nc3 Kc1 Qh4 d8B Bg4 c8R Ra6 c7 Nd7 e5 Nb6 Qb7 Na4 Qd5+ Ke3 Be2 f1N Bd1 Bh5 Nf3 g1N Nd2 Nf3 Bb3 Nb5 Bd4+ Kd3 Bb6+ Nfd4 Be7 Qh3 Bh4 Bb4 Rf8 Nf6 c8Q Ne3 Qc7 Ne4 Rf5 f3 Rf4 Rc8 h8Q Bc3 h7 Nec5 Qhg7 Nc2 h8Q Ba1 Rb2 c3 Rb1 Rd8 Re1 Rd6 Ree4 Qh1+ Qg1 Rg6 Qhg7 Rg2 Qe1 Re2 Qf1 Qh3 Qfg2 Re3 Q2g4 Qg2 Qh3 Qh1+
1RB2q2/nQ1bB3/5r1Q/2bQ1pK1/1rn2N1P/5Bpp/3R2PB/Rbn2n1k w - - 0 1 illegal: No proof kernel
rnN2kb1/r2R1r1Q/2Pq1N1K/8/3p1n2/1QR2ppB/Qb2N1P1/3n1nNR w - - 0 1 illegal: No proof kernel
1K1kq1rb/3p2n1/2pP3p/1b1Q3R/QRBn4/1b5N/1BPrnBQ1/1Rn4Q w - - 0 2 legal: proof: e4 a5 b4 f5 exf5 g5 a4 b6 h4 gxh4 b5 Ra7 Nc3 Ra6 Nd5 Ra7 Nb4 axb4 a5 Ra6 axb6 Ra8 Ke2 e5 Ke3 h3 Ke4 b3 Kd5 h6 f4 e4 g4 e3 d4 h2 g5 b2 b7 b1B g6 e2 f6 e1N b6 Bd6 g7 Rh7 f7+ Ke7 f8B+ Ke8 f5 Nc6 b8R Be5 b7 Bf6 Nh3 Ra5+ Bc5 Ba2+ Bc4 Bh4 f6 Rh8 Rb1 Nd3 Bb2 Bb3 Qd2 Nc1 Qg2 Qe7 f7+ Kd8 f8Q+ Qe8 Qff1 Bf6 Qe1 Ra1 Qa5 Ra3 Qa4 Be5 Bb6 Nge7+ Kc5 Rg8 d5 Bc3 d6 Nf5 Kb5 Bf6 Bf2 Ncd4+ Ka6 c6 Ka7 Be5 Ra8 Bf6 b8Q Ra1 Qb4 Be5 Kb8 Ba6 Qe1 Bb5 Ra5 Bf6 Rg1 h1N Qd5 Ra3 Rg4 Nhg3 Qeh1 Nge2 Rh4 Ba2 Rh5 Rd3 Ra7 Bb3 Rb7 Rd2 Rb6 Rh8 g8Q Ng7 Qdg2 Be5 Q8d5 Rg8 Rb7 Ngf5 Rb6 Bh8 Rb7 Ng7 Rb6 Ba6 Rb4 Bb5
1N1r1n2/1bn1q3/r4QQR/r3pNpp/1Q1bk3/b1B2RQN/RP1r2KP/8 w - - 0 1 legal: proof: e4 b5 d4 d5 g4 f5 gxf5 c6 a4 Qd6 axb5 Qc7 Bc4 dxe4 d5 Qb6 d6 Qd8 Bd5 cxd5 Kf1 Kf7 c4 Kf6 f4 a5 b6 g5 c5 e5 b7 h5 c6 d4 d7 e3 c7 d3 Qb3 e2+ Kg2 e1B Na3 a4 Bd2 Rh7 Nh3 Nh6 Bc3 d2 Nb5 d1R Nd4 a3 Ra2 Rf7 Rf1 Na6 b8N Ng4 Rf3 Qe7 d8R Bb7 c8Q Bf2 Qc7 Rd2 Qcb6+ Bc6 Q3b4 Nc7 Rd5 Ra6 Rd6+ Qe6 Qb3 Bb7 Qc6 Rd7 Qe4 Kf7 f6 Rd8 Nf5 Kg6 f7 Nf6 Qeb4 Be7 f8Q Nh7 Rc6 Bec5 Qd6 Nf8 Qd3 Bd6 Qbc2 Qe7 Qe3 Rd3 Qe1 Bd4 Qg3 Kf6 Rb6 Ke6 Rc6 Kd5 Qb1 B6c5 Rh6 Rd1 Qd3 Ra5 Qa6 Rd3 Qg6 Bd6 Ng7 Rd1 f5 Ra6 f6 Rd2+ Rf2 B6c5 Nf5 Ke4 f7 Nfe6 f8Q Kd5 Qb3+ Ke4 Ra1 a2 Qff6 Nf8 Qa3 Rd3 Rf3 Bd6 Rd1 a1R Qb3 R1a5 Ra1 Bb4 Ra2 Ba3 Qb4 Rd2+
2QRbK2/1nq4R/1pb1n1k1/1rpn2B1/4p2Q/4r3/N1PQP2r/R1Bn2RB w - - 1 2 legal: proof: d4 g5 f4 a5 fxg5 c6 b4 axb4 d5 Bg7 d6 Bd4 g4 h6 g6 Qb6 Nc3 Be5 Ne4 Qd8 g5 h5 Nf2 Bf4 Ng4 hxg4 Qd4 Be3 Qd2 Bb6 Qd1 Bc7 dxc7 Ra5 Nf3 Ra7 Ng1 Ra8 Kf2 d5 Ke3 f5 Kf4 c5 Ke5 b3 a4 b2 h4 b1R h5 b6 a5 f4 h6 g3 a6 d4 a7 f3 h7 f2 g7 Kf7 Bg2 f1B Be4 d3 Nh3 g2 Nf4 g1N Nd5 d2 Nb4 Bg2 Na2 Bd7 c8Q Nf6 g8R Rb5 Rh4 e6 Kd6 e5 Rf8+ Kg7 g6 Qc7+ Ke7 Nh3 Rd8 Ng5 Qe1 d1N Qd2 Bf3 Bc6 Bh5 Bh1 Ne6 Rh3 e4 Rh4 Qf4 Rh2 Kh6 g7 Kg5 Rh3 Bhe8 g8R+ Kf5 Rg1 Qg3 Qc7 Kg6 Qcf4 Nc6+ Kd6 Ne5 Ke7 Nc4 Qf2 Na5 Qfe1 Rb8 a8Q Rb7 Qb8 Ra7 Qc8 Nb7 Rh2 Bc6 Qf2 Rf8 h8B Ra3 Rh7 Re3 Bg7 Nc3 Bh6 Nd1 Bg5 Qf4 Rf7 Rh8 Qh2 Rh6 Rh7 Qb8 Qg3 Rh2 Qh4 Qc7+ Qcd7 Ng7 Kf8 Nd5 Qc8 Ne6+
B2n1kNR/1NrQR2b/N2b2bp/Qp1r4/3PQ1nN/b3q3/1Pp4K/r5R1 w - - 0 1 illegal: No proof kernel
b1qR1bNR/1Q1N1pn1/2QQp2p/3R1r2/r7/P2Q2n1/2bK1Pbr/k1B1N3 w - - 0 1 legal: proof: e4 a5 h4 d5 exd5 c5 b4 cxb4 Ba6 g5 Bc4 a4 Bb3 axb3 hxg5 Ra6 Kf1 Ra5 Ke1 Ra8 d4 Kd7 g4 Kd6 c4 b5 g6 b2 a3 b3 g7 b4 g5 e6 g6 Qd7 Nf3 Ra4 Qd3 Bb7 Nbd2 b1R Ne5 b2 Ndf3 b3 Kd2 Na6 Ne1 Nf6 g8N Ne8 g7 Qc8 Nd7 Ba8 Rh3 Nc5 Rh1 Kc7 d6+ Kb7 d5 Ka6 Ra2 Ka5 Rh3 Ra1 Rh5 b1B Rc2 b2 Rg5 Na6 c5 h6 c6 Nc5 Rc3 Bc2 c7 b1B Rb3 Rf4 Rb8 Ka4 Rh5 Rf5 Rg5 Qb7 c8Q Qc7 Qb7 Qc8 Ngf6 Ba2 g8Q Ng7 Qh7 Rb1 Ng8 Bc4 Qc3 Bf1 Qc4+ Rb4 Qcb5+ Kb3 Q5c6 Ka2 Qg6 Rf3 Qd3 Ka1 Qb3 Rh7 Ne5 Be7 d7 Nf5 d8Q Qc7 d6 Rg7 d7 Ra4 Rh5 Rg2 Nf6 Ng7 Qd3 Rh2 Rf5 Bd6 Qe7 Rff4 Rh8 Qc8 d8R Bg2 Ned7 Rf3 Rd5 Rf5 Ng8 Ne4+ Ke3 Ng3 Kd2 Be5 Qec5 Bd6 Qcb4 Be7 Qbd6 Bf8
Q1b1Q3/2n1N3/1p1Q3Q/3P1q1n/2KB1Rp1/1r1rq1Np/2N3bP/bkBB1b2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 gxf5 Ra4 Nh3 Ra5 Ng1 Ra8 a4 e5 d4 Bd7 d6 Qh4 d5 Qd8 Ra2 Be6 Rd2 Bc8 Rd4 exd4 Kd2 Kd7 Kd3 c5 f4 h5 e4 g5 a5 h4 a6 h3 a7 g4 f6 c4+ Kd2 c3+ Kd3 b3 f5 b2 e5 c2 f7 Nf6 Ne2 Na6 Bg5 c1Q Ng3 Qe3+ Kc4 d3 Na3 b1B Qd2 Bg7 f8B Nh5 f6 Nc7 f7 Qf6 Be2 Qf5 Bd1 b6 Qb4 d2 Rf1 Be4 Nc2 Bg2 Rf4 Rh6 Bfe7 Re6 f8Q Bf6 Qh6 Bh8 Be2 d1B Bef6 Bg7 Bf1 Bdf3 Be2 Bf1 Qa3 B3g2 Qb4 Ke8 d7+ Kf7 Qd6 Re8 Qh8 Kg6 d8N Rf8 e6 Rf7 Bb2 Bd4 Bc1 Ba1 Bf6 Rf8 Bd4 Rf6 Qdf8 Kg5 e7 Rc6+ Kb4 Rc3 e8Q Rd3 Kc4 Rb3 Nc6 Rd3 Ne7 Rb3 Rf2 Rd3 Bf3 Kf4 Nh1 Rb3+ Be2+ Ke4 Qhh6 Rb8 a8Q Rb7 Qg8 Ra7 Qgg6 Raa3 Qd6 Rd3 Rf3 Rab3 Bd1 Rd2+ Be2 Rd1 Nb4 Qf2 Bf6 Rd2 Rf4+ Ke3 Ng3 Qe1 Ba3 Rdd3 Bd1 Kd2 Bd4 Qee5 Nc2 Qe3 Bac5 Kc1 Ba3+ Kb1 Bab2 Be6 Bc1 Bc8
5k1b/prb1nr1Q/2q1p2K/P2R4/Bnq1P3/3N2RR/1p1Bq3/QB3RqQ w - - 1 2 legal: proof: d4 c5 dxc5 h5 g4 hxg4 c4 f5 b4 b6 Nc3 Bb7 b5 Bc6 Ne4 f4 Ng3 fxg3 bxc6 Rh6 Qd2 Rh5 Qd1 Rh8 Kd2 d5 Ke3 g5 a4 e6 h4 g2 f4 g3 a5 b5 f5 g4 Kf4 d4 e4 d3 f6 d2 Kg5 b4 h5 b3 c7 b2 c8R Nh6 c6 Ba3 c7 Kf7 c5 Rh7 c6 Na6 Ne2 g1Q Nf4 g2 Bd3 g3 Rh3 Qh8 Bb1 Bc5 Nd3 Bb4 Ra3 Qd4 Qh1 g1B Rd8 d1Q c8Q g2 c7 Qd7 Bd2 Ng8 h6 Qc6 Rd5 Rb8 Qd7+ Ne7 c8B Kg8 f7+ Kf8 Rc3 Qc4 Qa4 Bd4 Bd7 Rb7 Qa1 Bd6 Ba4 g1Q+ Rg3 Qc1 Kh5 Rg7 h7 Nb4 Kh6 Bc7 Ra3 Qg8 h8Q Qcd1 Qh7 Qe2 Nf4 Bf6 Raf3 Qb6 Nd3 Qbc6 Re3 Rg4 Rh3 Bh8 Reg3 Rf4 Rf3 Qg1 Re3 Nc8 Reg3 Ke7 Qf5 Rf2 f8R Rf4 Rf7+ Ke8 Qh7 Ne7 Rfg7 Rf8 Rf3 Rf5 Rgg3 Rf7 Rf1 Kf8
Q5n1/1Qp1NN1b/6Kb/3B1p2/1qP1nkBN/P1b1q3/1bpQQ2r/1R1r2B1 w - - 0 1 illegal: No possible last move
1BRQ2B1/1rpqBp2/P2B3k/2Q4r/3Q2n1/KNP1q1nR/3bb2p/2q3qR w - - 0 1 illegal: No proof kernel
1RrB4/3QR1bk/p1p1n1Rn/b1PQpB2/3Q3P/1bqB1rp1/5N1r/5KQ1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 g4 hxg4 axb5 Ba6 Qd3 Bb7 Qd1 Bc8 e4 Ke7 e6 f6 e5 Na6 Nd2 Nb8 Nc4 Ke8 e7 Kf7 e6+ Kg6 Ne5+ fxe5 Nf3 Kf5 Ng1 Kf6 e8B g5 c4 Kg7 b4 d5 h4 c6 f4 g3 e7 g2 b6 d4 b5 g4 f5 d3 c5 Rh6 f6+ Kh7 b7 Be6 f7 Qb6 Nh3 g1B Bg5 Rf6 Bd7 Na6 b8R Qb7 e8Q Bh2 b6 Bg7 f8Q Bg3+ Nf2 Nc7 Qff7 Rf4 Rg1 Rf3 Bd8 Bb3 Qd5 d2+ Ke2 Qc8 b7 Nh6 Be6 Bf4 Qed7 a6 Rb1 Bg3 Qe1 d1R Bf5+ Kh8 Qb4 Ne6 Qbd4 Rd2+ Ke1 Qc7 B1d3 Qa5 Kf1 Qc3 Rc8 Bf4 b8Q Bc4 Kg2 Rd1 Rb5 Qc2 Qda7 Bd2 Rb7 Ba5 Re7 Qc3 Qb1 Bb3 Qad7 Rc1 Rb8 Rf1 Rb7 Rc8 Rb8 Rd1 Rh1 Rc1 Rh3 Kg8 Rg3 Rh1 Qg1 Rh2+ Kf1 Rf4 Re3 Kh8 Re4 Rf3 Rf4 g3 Rg4 Kg8 Rg6 Kh7
1bqnb1B1/2RPpQp1/4K1bQ/8/Q3R3/NN1R1prN/2nnP1kp/1r1Q4 w - - 0 1 illegal: No proof kernel forced: wxDB
5n2/3PQq2/rBrb1QQ1/2p1R1n1/1BPp2kp/4r2p/1NbR4/QB2RqK1 w - - 0 1 illegal: No proof kernel
qN1N3R/Q1nKQ3/p1b1P2q/P7/Qp3rn1/NqkBpNr1/1R3p2/b2R4 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 e4 d6 b4 Qd7 bxc5 Qe7 Bb2 exf4 e5 Qc7 e6 Qd8 Be5 dxe5 Kf2 Ke7 Kf3 Kf6 Ke4 g5 a4 b5 h4 f3 c4 f2 d4 a6 a5 g4 c6 g3 h6 b4 h5 g2 c7 Bd7 Kd5 e4 c8N e3 c5 Qe8 h7 Bb5 c6 Nh6 c7 Bg7 Kd6 Ng4 h6 Nc6 d5 Nd4 Nf3 g1Q Qa4 Rg8 h8R Bc6 Rh2 Qh1 Bd3 f1Q h7 Qd1 Na7 Qb3 Rb2 Qh6 c8Q Rb8 Qc7 Nb5+ Kc5 Rb7 d6 Qa8 d7 Rbb8 Qd6 Nc7 Na3 Rbc8 Rd1 Rcf8 Bc4 Kf5 d8N Ke4 Qe7 f5 Kd6 f4 Bb5 Bb7 Kd7 Bd5 Ng1 f3 Bd3+ Kd4 Nac6+ Kc3 Nb8 f2 Nf3 Rf7 Rdb1 Be5 Rd1 Rgg7 Rg8 Rf5 h8Q Rf4 Qh7 Rg5 Rh8 Bc6+ Kc8 Nh2 Qhf7 Rg3 Qg7 Ng4 Qh7 Bd5 Kd7 Bd4 Qhg7 Bc6+ Kc8 Bb5 Qe8 Nd5 Re2 Bc6 Qa7 Nc7 Qe7 Be5 Bc2 Kb2 Red2 Ka2 Re2 Ba1 Bd3+ Qc2 Red2 Kb2 Re2 Kc3 Red2 Bb7+ Kd7 Qb3 Rb2 Bc6+
rBQ4b/2Rr1BnQ/1N2rrP1/1p3p2/3pbkN1/Qnp5/K1NPq3/6NB w - - 0 1 legal: proof: b4 b5 c4 e5 a4 g5 h4 a6 hxg5 Qe7 f4 Qf6 fxe5 Qd8 Ra3 Ra7 Rb3 bxc4 b5 Ra8 b6 Be7 Rb4 Bf8 Rb5 axb5 g4 Ke7 e4 Ke6 a5 h5 b7 f5 a6 c5 a7 d5 g6 d4 g5 c3 g7 h4 g6 c2 Ba3 c1R Bg2 c4 Bd6 h3 Na3 c3 Nc2 Rb1 Qc1 h2 Kd1 Rb3 Qa3 Bd7 Kc1 Nc6 b8Q Qf6 Qc8 Na5 Bb8 Qe7 Bf3 Nf6 g8Q+ Qf7 Bg2 Ne8 Qh7 Qe7 Bf3 Rb4 Bg2 Nb3+ Kb1 Ra4 Ka2 Bg7 Bf3 Rf8 Bg2 Qb4 Bf3 Ke7 e6 Kf6 e7 Kg5 e5 Bh8 e6 Ng7 e8N Qe7 Nf6 Bc6 Ng4 Rf6 Bg2 Qe8 e7 Ra6 Bf3 Be4 Bg2 Qg8 e8B Rae6 Bf7 Qe8 Be5 Rb8 a8N Qe7 Nb6 Ra8 Bb8 Qe8 Ne2 Qe7 Re1 h1R Ng1 Rh3 Bh1 Re3 Ne5 Kf4 Ng4+ Rd6 Re2 Qe6 Rh2 Qc4 Rh5 Qe2 Rh4 Bg2 Rh3 Ree6 Re3 Bc6 Re5 Bg2 Rc5 Be4 Rc7 Rd7
1QQ2Qr1/N3B3/1bpRQp2/3q2n1/4p2k/b1P2P2/2bKpnrb/B1RB3R w - - 1 2 legal: proof: e4 d5 g4 dxe4 a4 h5 gxh5 b5 axb5 Be6 Nc3 Ba2 Nb1 Bxb1 d4 g5 b4 a5 h4 e5 f3 Ke7 d5 Kf6 d6 a4 b6 e3 b5 g4 d7 e2 b7 a3 b6 a2 h6 c6 h7 Bd6 h5 Bc5 h6 Ra4 Qd5 Ba3 Kd2 Kg5 Qe6 Na6 b8Q Nf6 b7 Nc5 Qc8 Nd3 b8Q Rg8 h8B Nf2 h7 Rb4 Bg7 Rb2 h8Q Nh7 Bf8 f6 Be7 Nh3 Qg7+ Kh4 Qgf7 Ng5 Qf8 Qb6 d8R Qc5 Rd6 Qd5+ Ke1 Bc5 c3 Bc2 Rb1 Bd4 Kd2 a1B Qfe8 Ra2 Qf8 Bb2 Ra1 Ba3 Bb2 Kg3 Rc1 Nf2 Ba1 Rb2 Nh3 Kh4 Nf4+ Ngh3 Qef7 Ra2 Ne6 Bb6+ Nd4 Rb2 Rg1 Ng5 Qfe6 g3 Bh3 g2 Rh1 g1B Bf5+ Bh2 Bd3 e4 Nb5 Rb1 Na7 Qa5 Bc4 Rb5 Bb3 Rf5 Rd4 Qd5 Ba4 Rf4 Rd3 Rg4 Bb3 Bb1 Bd1 Rg2 Rd4 Bc2 Rd3 Qc5 Rd6 Qd5+
3r3b/pp2p2N/B1kqPr2/1n2p1N1/1PK2r2/2Bq1n1B/QR2Bn2/1Q1QN3 w - - 0 1 illegal: No possible last move
R1N3BQ/6n1/2NN1p1K/p1prn1Qp/kr2BP1p/1b1Bb3/2n1Q2P/q5N1 w - - 0 2 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Ba3 d4 Be7 d6 Bf8 b4 Nh6 d5 Ng8 Bh6 gxh6 Ra3 h5 Rd3 h4 Rd4 exd4 Kd2 Kd7 e4 c5 g4 h5 b6 a6 b5 d3 Ke3 d2 Kf4 Ne7 Kg5 Qc7 f4 Ra7 b7 Ra8 b6 Bg7 e5 Qd8 e6+ Ke8 d7+ Kf8 d6 Bb2 Qe2 d1N Na3 Nf5+ e7+ Kg8 Nc4 Nc6 b8N Ba1 b7 Be5 Nb6 Ng7 Bg2 Ra7 Be4 Ne3 Bd3 Qf8 d8Q Be6 e8B Bd4 d7 Ne5 Nc6 Nc2 b8Q Bb3 Nc8 Be3 Qf6 Rc7 d8N Rd7 Nb7 Rd5 Nbd6 Qe7 Bd7 Kf8 B7f5 Qa7 Bfe4 Rg8 Qf5 f6+ Kh6 Qa8 g5 Qa7 Nb7 Ke8 g6 Rf8 Qg5 Kd7 Nbd6 Rd8 N8e7 Re8 Qa8 Rb8 Nec8 Rb4 Qb8 Qb6 Qa8 Qa5 Qb8 Qa1 Qa8 Ne8 g7 Kc7 g8B Ng7 Nf3 Kd7 Rb1 Kc7 Ng1 Kd7 Rb2 Kc7 Ra2 Kd7 Ra5 Kc7 Rb5 a5 Rb8 Bc4 Nb6 Rb1 Be6 Rb4 Rh8 Bb3 Qg8 Nf3 Qh7 Ne5 Ra8 Bd2 Bg8 Be3 Nbc8 Kd7 Qh8 Kc7 N8e7 Kb6 Nc4+ Kb5 Nc8 Ka4 N4d6 Qd4 Qf1 Qb2 Qe2 Qa1
K1R1rk1B/Rp1pb1n1/1pp5/p3Qb2/1BQbQR2/P2P4/N1n1q1B1/3Q2r1 w - - 0 2 illegal: Other
1BRn2r1/2K1k3/3rqp2/3BQPQ1/2P1qN1b/1b1pQ1pp/Nn4p1/1N1B2B1 w - - 0 1 illegal: No proof kernel
1B5k/1K2rQ2/npR1Q2p/b1BnNp2/5QrP/R1p5/1P2R1Bp/rB1r2q1 w - - 0 1 legal: proof: f4 d5 h4 e5 c4 exf4 cxd5 g5 a4 g4 a5 b6 a6 Be7 Nc3 Nd7 Ne4 Nb8 Nf2 Bb7 axb7 Bf8 Nfh3 gxh3 Kf2 a5 Kf3 c5 Ke4 h2 g4 c4 d4 c3 d6 f5+ Kd5 Kf7 e4 Kg7 e5 a4 e6 h6 d7 f3 g5 f2 e7 a3 e8Q a2 g6 Na6 Kc6 Qf6+ Qe6 Qe5 d8R Ba3 b8B Be7 d5 Nb4+ Kb7 Na6 d6 Bf6 d7 Bg5 Qa4 Be3 Nf3 Bd2 Bg2 f1R Qf4 Qe1 Ne5 Rh7 Rc8 Qd1 d8Q Ne7 Qdd5 Be3 Rc6 Bc5 Be3 Bb4 Bc5 Kh8 Qdd7 Nd5 Qdf7 Ba5 Rg1 Rf3 Re1 Rd3 Re2 Qg1 Bf8 Rg7 Bc5 Rg8 g7+ Kh7 Ba3 Rd1 Bc5 Re8 g8B+ Kh8 Rb1 a1R Rc1 Ra4 Ra1 Ndc7 Ra3 Re7 Bh7 Rad4 Bg6 Rc4 Bh5 Rcd4 Bhf3 Ra4 Be4 Nd5+ Bc7 Rg8 Bb1 Rg3 Rb3 Ra1 Ra3 Re8 B7d6 Rg4 Bb8 Re7+
nR1b2B1/2p1B3/3n4/1R1Q4/qPbrB2B/R1KrBB2/1nP1q1N1/3r1k2 w - - 0 1 legal: proof: b4 b5 e4 f5 a4 g5 h4 gxh4 d3 d5 exf5 e5 Nc3 d4 Nxb5 e4 dxe4 d3 e5 a6 Bb2 d2+ Ke2 Qd6 Nd4 Qd7 Nb3 Qd8 Nc1 dxc1Q Ke1 Qd4 Bxa6 Qd7 Bf1 Qd8 f4 Ke7 g4 h5 a5 h3 a6 h4 e6 h2 g5 h3 a7 Qe8 g6 Ba6 g7 Rh4 Be2 Nh6 g8B Qa4 Bd4 Kd6 f6 Kd5 f7 Ke4 f5 Qe3 e7 Nd7 e8R+ Be7 f8B Rd8 f6 Bc4 f7 Nb6 Ra3 Nf5 Nf3 Nd6 a8B+ Kf4 Rf1 Kg3 Be4 Kg2 Bfg7 h1R f8B h2 Bgf6 Rd7 Rb8 Bd8 B8e7 Na8 Bc5 Rg1 Qd5 h1N Kd1 Rg4 Bh4 Nf2+ Ke1 Qd3 Be3 Nd1 Rb5 Nb2 Bd1 Qdb3 Kd2 Qa6 Be2 Qba4 Kc3 Rf4 Rfa1 Rd1 R1a2 Rd2 Bd1 Kf1 Ne1 Rg4 Bdf3 Rd1 Rb8 Rg2 Ra1 Rgd2 Ng2 Qa7 Bf4 Qf2 Be3 Qe2 R1a2 Qc6 Ra5 Qa4 Rab5 Ne8 Qc5 R7d4 Qd5 Nd6 Ra3 R2d3+
Kb1B3R/1q2R2b/1pR2nNq/3R4/1QB4R/P3b1rP/1q2n3/1b2RBk1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 d5 gxh5 c5 d4 Ra6 Nd2 Rc6 cxd5 c4 Nb3 Rc5 dxc5 cxb3 Ke2 Kf7 Ke3 Kf6 Ke4 g5 f4 e5 a3 g4 d6 g3 Kd5 g2 h6 e4 d7 b6 c6 b2 h7 b1Q c7 e3 Qg4 b3 Ne2 Qe7 d8R Ba6 c8B g1B Be6 Nd7 Kc6 Bd3 Kb7 b2 Ka8 Nc5 Rc8 Be4+ Rc6 Nb3 Bd2 Nd4 Qh4+ Kg7 f6+ Kg6 f7 Bf5 Qe1 Kh5 Bc4 Kg4 Bc1 Kf3 Qb4 Bh6 f8R Kf2 Rd8 Bg6 f5 Bf4 f6 Bb8 Nf4 e2 f7 e1Q f8R Q1e6 Rdd6 Ne2 Rd5 Qc2 Bd2 Qc3 Rd1 b1B Re8 Qb2 Re1 Q7f7 Bc3 Qh3 Be5 Nf6 Bc7 Rg8 h8R Bh7 Bd8 Rg3 Ng6 Qh6 Ree6 Kf3 Ree5 Be3 Re4 Qd7 Re7 Kf2 Rg1 Rh3 Rg4 Rg3 h3 Kg1 Rh4 Qb7+
2N1qrB1/1Pp1pNqB/1P3N2/1RKR1N2/1pN1R1r1/b1kn2B1/7p/3b4 w - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 g5 b4 gxh4 a4 f5 e4 a5 exf5 Ra7 d6 Bb7 d7+ Kf7 Qe2 Qe8 d8R Na6 Rc8 Ra8 Qg4 Qd7 axb5 Qd3 b6 Qd8 b5 Ke8 Qa4 Nb4 Qxb4 axb4 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 h3 f4 h2 f6 h4 f5 h3 f7 Ra3 f6 Bg2 g5 Ra6 g6 Be4 g7 Ra8 b7 Rb8 Na3 Rh5 Bd3 Ra8 Nc4+ Kd7 Ne2 Bc6 Re1 h1Q Rb8 h2 Ra5 Rg5 Bh7 Rh5 Ng3 Bd5 Re4 Re5 Nf5 Ke6 Kc5 Nh6 g8B Qe1 d4 Qd1 Bf4 Qb3 Bg3 Qe8 Rd8 Bc6+ Rd5 Rb8 b6 Bb5 Ncd6 Qb2 Nc8 Be2 Rb5 Bh5 Nfd6 Bg7 Nc4 Bg6 f8N+ Kf5 f7 Ng4 Re3 Nf2 Nd7 Bh6 Re1 Bc1 f8N Qc3 Re4 Ba3 Ne6 Nd3+ Kc6 Qf7 Nf6 Qe8+ Rd7 Qa1 d5 Qb2 d6 Rd5 Nh5 Qg7 Nf6 Ra8 Nc5 Rd4 Nb3+ Ne5+ Kc5 Rb8 Re1 Rg4 Re4 Nd3+ Kd5 Kg5 Nd4 Bh5 Rd8 Rh4 d7 Bd1 Nf5 Rf4 Nh5 Kg4 Nf6+ Kf3 Kd4 Rg4 Kd5 Nb2 Kc5 Ra8 Rd4 Ke2 Rf4 Kd3 Re4 Qeg6 Re8 Rb8 d8N Kc3 Nf7 Qh5 Rd8 Nd3+ Kc6 Qhg6 Rdd5 Ra8 N8d6 Rf8 Nc8 Nb2 Kc5 Qh5 N7d6 Qe8 Nf7 Nd3+
8/PK3b2/2B3n1/1n3N1q/R2q2Rb/NBr1P3/rbn2BB1/q1kNRrB1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 g5 f4 e5 fxe5 Bc5 Qb3 Bf8 Qa3 g4 b4 axb4 h3 bxa3 hxg4 Bf5 g5 Bc8 Kf2 Ke7 Kf3 b5 Ke4 c5 g4 h5 d4 h4 g6 h3 g5 b4 d6+ Ke6 a5 h2 a6 c4 d7 c3 g7 c2 g6 a2 Nh3 b3 Be3 c1B Bg1 b2 e3 Ne7 g8N Nbc6 g7 Nb4 Nh6 Nc2 g8B Ng6 Nf2 Be7 Nf5 Bh4 Na3 b1N Bg2 Bb2 Nd1 Qf6 d8B Nc3+ Kf3 Kd5 a7 Nb5 e6 Bb7 e7 Rc8 e8B Rc3 Bc7 Bc8 Bd6 Be6 Bg3 Qd8 Be1 f6 Bef2 Bf7 Nh6 f5 Bc6+ Kd6 d5 Kc5 d6 Kb4 d7 f4 Ke4 Kb3 Nf5 f3 Rb1 Qb6 d8R a1Q Rd4 Ka2 Ra4 Rh7 Bg3 f2 Rc1 f1R B3f2 Bb3 Bc4 Rb7 Kd5 Qd4+ Ke6 Rc7 B4d5 Rc8 Kd7 Rb8 Rb1 Rb6 Kc8 Ra6 Bg8 Bf7 Kb7 Bc1 Rbb4 Bb2 Nc4+ Kb1 Na3+ Kc1 Rc4 Qh8 Rg4 Qd4 Bg3 Be8 Bb3 Bf7 B1f2 Ra5 Rg1 h1Q Bf4 Qh3 Bh2 Qf3 Rh1 Qe2 Bhg1 Ra6 Rg3 Qh5 Rg4 Ra5 Nc4 Bg8 Rb4 Bd8 Bh2 Ra2 Na3 Bf7 Ra4 Re1 Rf1 Bh4 Bhg1 Re2 Bg3 Rf2 Re1 Rf1 B3f2 Qhh8 Nh6 Qh7 Nf5 Qh5
3rn2q/1K2b1qB/2Rb2P1/P5R1/1kb3Rq/r6R/b1Rn1NQ1/N2N2Rn w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h6 g4 Nd7 g6 Nb8 g7 Ra5 Na3 Ra7 Nb1 Ra8 g5 Bd7 g6 Qc8 Bb2 Qd8 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 b3 h4 b2 a5 c6 f6 b4 h5 b3 h6 g4 f7 g3 h7 g2 Ra2 Ba6 Bc4 Nd7 Qc2 Nc5 Nc3 b1N Nd1 b2 Nh3 g1Q+ Nhf2 Nf6 g8R Ne8 d3 Qf1 Rg1 Nd2 Bb3 b1B Qb2 Bh6 f8R Bg5 Rf4 Bc4 Rfg4 Nce4 Rg7 e6 Rc7 Be7 Rg5 Rf8 h8R Ng3 Rh3 Nh1 Ra4 Ba2 Rc8 Kd7 d6 e5+ Kc5 e4 d4 e3 d5 e2 Qc2 e1B Qe4 Qd3 Qg2 Qg3 Rb4 Rf3 Ra4 Be2 Rag4 Qh4 Bc4 Ra3 Bb3 Nc7 Kb6 c5 Kb7 Qdh8 Bc4 Ne8 Rc6 Bb1 Bb3 c4 Ba2 c3 Bb3 Kd8 d7 c2 Bc4 Bd6 Ba2 Ke7 d8N c1Q Ne6 Qcc3 Nd4 Bb5 Nb3 Bc4 Na1 Qcg7 Bb3 Kd7 Ba2 Be7 d6 Rd8 Bb3 Ke6 d7+ Bd6 Nd3 Bg3 N3f2 Be5 Ba2 Bf6 Bb3 Be7 Ba2 Ra8 d8R Rc8 Bb3 Ra8 Rdc8 Ba2 Rb6 Kd7 Rcc5 Rd8 Rbc6 Bf1 Rc2 Bb5 Bg8 Bbc4 Bh7 Ke6 Rgg3 Kd7 Rb6 Ke6 R5g4 Ke5 Rg5+ Kd4 R5g4+ Kc5 Rc6+ Kb5 Rg5+ Ka4 R3g4 Kb4
b7/Br2k1PB/R5br/qNbRB1r1/2n1NK1n/R5R1/Rn3bPN/6n1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bh3 Qb3 Bd7 axb5 Ra7 b6 Bc8 b5 Ra8 Qb4 axb4 Kf2 h5 Kf3 c5 e4 f5 d4 c4 d6 b3 e5 c3 g6 h4 g7 h3 d7+ Ke7 e6 b2 d5 h2 b7 c2 b6 Ra7 Ra6 Nh6 Ra3 Na6 b8B Nc5 b7 Nd3 Ne2 Qa5 Nbc3 b1B d8N Nb2 Be3 c1B Be5 Bd7 b8R Rb7 Ra2 Bc6 Ba7 Be3 Nf7 Bf2 Ne4 Rh7 Rg1 h1R Nfg5 Rh5 Nd4 Bc2 Bd3 Rh8 Nh7 Rg5 Nhf6 Rh7 Nb5 Rh8 Ra8 Rh7 Ke2 f3+ Kf1 f4 Ng4 Nf5 Nh2 Rh6 Ra3 Bh4 Rh1 f2 Ke2 f1N Kf3 N1g3 Rha1 Ne2 R1a2 Rgh5 Kg4 Bf2 Kf3 Ng1+ Kg4 f3 Kf4 Qd8 Ra6 Rg5 d6+ Ke8 e7 Nh4 d7+ Kf7 e8R Qa5 d8R B8c5 Rf8+ Ke7 Rd5 Bb1 Ned6 Bc2 Bh7 Bg6 Rfc8 Bb4 Nf7 Rb8 Nfd6 Bfe1 Nc3 f2 Bad4 f1N Nce4 Qa3 Rb6 Nd2 Nb5 Bf2 Ra5 Qa4 Rba6 Ba8 Ba7 Rb7 Rc3 Bbc5 Rg3 Qb4 R5a4 Qa5 R4a3 Ndc4
5B1q/2k4P/P1NRn2n/bB2bn1N/n1b1rqrB/KR6/N3RBb1/4B3 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Ra6 fxg5 Ra4 g6 Ra3 g5 Ra8 Qg4 hxg4 Kd1 Kd7 Kc2 c5 Kb2 b5 h4 e5 a4 e4 d4 g3 g7 g2 d6 e3 a5 b3 f6 c4 g6 e2 h5 e1B a6 b4 h6 Rh7 f7 Nc6 d5 Bb7 Rh2 Nce7 Nf3 g1N Re2 Nf5 Ra3 Nh3 Bd2 Ng5 Nc3 Ne6 Nd4 Qh4 Be3 Re8 Nc6 Qf4 Na2 c3+ Ka1 c2 Kb2 Be7 f8B Bf6+ Bd4 Kc8 d7+ Kc7 Bc3 Rh8 h7 Ngh6 g8N Be5 Nf6 Rg8 g7 c1N Nh5 Nd3+ Kb1 b2 Rb3 Ndc5 d8B+ Kc8 d6 Na4 Bb6 Kd7 Nd8 Bg2 Bf2 Kc8 d7+ Kc7 Kc2 Re7 Bd2 b1B+ Kc1 Bbe4 Nc6 Bd5 Kc2 Bc4 d8B+ Kc8 Bc3 Re8 Bdh4 Kc7 Bcd4 Bc3 Be1 Bd2 Bdf2 Bdc3 Ra3 b3+ Kb1 b2 Rb3 Ba5 Kc2 Rh8 g8R Re7 Rg6 Rg8 Rf6 Rg4 Rg6 Neg7 Rd6 Ne6 Kb1 Re8 Nab4 Re7 Ka2 b1Q+ Ka3 Qa1+ Na2 Rd7 Rdd3 Rd4 Rdd2 Re4 Rd6 Qd4 Rd2 Bd5 Bb5 Bc4 Re2 Qc3 Rd3 Qd4 Rd1 Qd8 Rd5 Qf6 Rd6 Qh8
q2RBN2/2B5/1Bn2b2/3Kbr1B/q3Q2B/R1P2R1P/b1r1bbr1/B1k1r3 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 f4 Ke1 Nc6 Nc3 Nce7 Ne4 Nf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kf7 b4 g5 e4 d5 h3 a5 f6 Kg6 f7 a4 b6 a3 b7 f3 b8B d3 Ke3 g3 Kd4 f2 e6 a2 e7 g2 e8R g4 e5 Kf5 b5 g3 e6 d2 e7 Bg7+ Kc5 Ke4 f8B Ke3 b6 d4 b7 d3 Kc6 Bf5 Be5 Ra5 b8B Bf6 Ne2 g1R Rh2 g2 Bbc7 Qa8+ Kd6 Rh6 Rb1 a1B Nf4 Rc5 Qg4 Rg6 Be2 f1R Bcb2 d1Q Bed4+ Kd2 Rd8 Rf3 e8B Re1 Bh6 g1B Rf2 Ne7 Bg5 Nc6 Bh4 Rc4 Rf1 Bf2 Ne6 Rg7 Qe4 Rg2 Bc5 Bg6 Be5 Rf5 Rb3 Kc1 Kd5 d2 Bh5 Qg4 B5b6 d1B Ra3 Be2 Nf8 Rc3 Qf3 Qga4 Qe4 Bg1 Rf3 Bf2 Ke6 Rc4 Bed6 Bae5 Kd5 Rb4 Bdc5 Rb2 Bd4 Ra2 Ba1 Bh7 c3 Rc2 Qb4 Bg8+ Ke4 Ba2 Qd4 Bb1 Kd5 Rgg5 Qb4 Rg2 Qe4 Ba2+
1K2B1k1/3R1q1R/Rq4Nb/1R1rn3/1n4P1/3rNq1Q/1r3RP1/q1rN1Rq1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h3 Bf5 b3 Bg4 hxg4 Ke7 Ba3+ Ke8 Bd6 f3 Bf4 gxf4 Qc1 f2+ Kd1 Qf6 Kc2 Kd8 Qd1 Ke8 Kc1 Qd8 Kb2 h5 Kc3 c5 Kc4 f5 e4 Kf7 d4 a5 d6 h4 Kd5 a4 b4 h3 e5 a3 b6 f3 d7 a2 b7 h2 b5 c4 b6 c3 e6+ Kg7 e7 f4 Kd6 c2 d5 c1Q Bb5 f1R Qd3 f2 Nc3 f3 Nge2 Ra7 Nf4 Kf7 Ng6 Bh6 e8N Re1 Ng7 f1R Nd1 f2 Qh3 Qe3 Nf5 Qf3 Nfe3 Nc6 b8R Nb4 b7 Nf6 Ra8 Ra3 b8R Rd3 Ra6 Re2 Rb7 Qa5 d8R+ Nd7 Rf8+ Kg7 Ba4 Rb2 Rb5 Ne5 Rf4 Rb8 Rb1 Rb6+ Kc7 a1Q d6 Kg8 d7 Rbd6+ Kb8 R6d5 Rf5 Re1 Rc1 f1Q d8R+ Kh7 Rd7+ Kg8 Rcc7 Qb6+ Rb7 Q1f2 Rf1 h1Q Rff7 Qhg1 Rh7 Qd4 Rbc7 Qf7 Rc2 Q2f3 Rcf2 Qb6+ Rb7 Q7f4 Rc5 R3d4 Be8 Rd3 Rb5 Qa2 Nc3 Rc1 Ncd1 Qaa5 Nc2 Qa1 Nce3 Qba5 Rbc7 Qf7 Rd7 Qb6+
3R1QR1/1n5n/B1knR1qq/B1bbR1P1/3r2n1/4bb1N/1R1Pb3/R1KB4 w - - 0 1 legal: proof: c4 a5 g4 g5 f4 gxf4 h4 e5 a4 d5 cxd5 b5 axb5 Ra6 g5 Rb6 Na3 Rh6 Nc4 Rh5 g6 Rg5 hxg5 e4 Ne5 Be7 Nef3 exf3 Bh3 Bc5 Bf1 Bf8 b4 Kd7 e4 c5 g7 f5 e5 h5 b6 h4 b7 f2+ Ke2 f3+ Kd3 h3 Kc2 h2 d6 a4 e6+ Kc6 e7 f4 e8R c4 d7 c3 Re2 a3 Qe1 a2 Re7 Qe8 d8R Na6 b8R Bb7 Red7 Bc5 Kd1 Nf6 g8B Nh7 Rd4 Qg6 Bb2 c2+ Kc1 Ba8 Bd3 f1B Re8 f2 Re3 f3 Bf5 Be2 Rb5 f1N Bd3 f2 Re7 Ng3 Bc3 f1N Bb3 Ne4 Re5 Nd6 Nh3 Rd8 Qf2 Ne3 Qf8 Ng4 Re1 h1B Rb8 Bhf3 b5+ Kc7 b6+ Kc6 b7 Rd7 Rb1 a1B Ba5 Rd8 Rb4 Bad4 Ra1 Rd7 Rd8 Be3 b8R Qh6 Rf1 Bd5 Rf6 Bdf3 Rfe6 Bd5 Kb2 c1Q+ Ka2 Qc4 Kb1 Qe4 Kc1 Qeg6 Bd1 Bdf3 Kb2 Bcd4+ Kb1 Rb7 Qg7 Nc5 Rb2 Rb4 Rde8 Rc4 Qf6 Kd7 Rg8 Bad5 Rbd8+ Kc6 Qf8 Ra4 Kc2 Nb7 Kc1 Bc5 Ba6 Rd4
B7/1brB1R1R/3n1K2/q1r3q1/2RQP3/1B3r2/rPb1Nb1B/1BbBkq2 w - - 0 1 illegal: No possible last move
n7/1b1n1Q1r/1k1PN3/b1b4R/R1r3RN/K1N1n2R/3rRnP1/Rb2b2B w - - 0 1 illegal: Other
N2r1q1k/1qB1nbR1/3Rp3/RB6/P6B/KBP1B1b1/N4rb1/r2nq1N1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 Qc7 Bd3 Qb6 Bf1 Qd8 f4 h5 g4 g6 g5 Nc6 fxg6 Nb8 Qg4 hxg4 f5 Rh7 Ba3 Rh4 Bc1 Rh8 Kd2 d5 h4 b5 a4 d4 g7 Kf7 h5 d3 c6 b3 Kc3 g3 Kb2 g2 c7 d2 h6 d1R f6 b4 h7 Na6 Ra2 Bh3 c8N Nc5 Be3 Ne4 Nb6 Nf2 Nc3 Ra1 Bb5 Qd6 Ra3 Rd8 Na2 Kg6 f7 e6 Na8 Ne7 g8B Kg7 g6 Bf5 Rh5 Bh3 Bd7 Qf4 Ra5 Qd6 Bb5 Qc5 Ne2 g1Q c3 Qe1 Ng1 Kf6 g7 Bg2 Be8 Ng6 Bc6 Bd6 f8B Bg3 Bd6 Ne7 Bc7 Qd6 Bf7 Rhf8 g8R Qc5 Bg6 Rf7 Rh8 Kg7 Bb5 Rf4 Bgd3 Qf5 Re8 Qf8 h8B+ Kg8 Bhd4 Rf3 Bdb6 Kh8 Bg5 Rf5 Bh4 Rf4 Bb1 Rf3 Be3 Nd1+ Kc1 b2+ Kc2 Nc8 Kb3 Rf2 Bc2 b1B Re7 Qf5 Bcb6 Qf8 Rg7 Ne7 Bc7 Rb8 Kc4 b3 Kb4 b2 Rb3 Re8 Ka3 Rd8 Be4 Bc2 Bd5 b1Q Rb4 Bg6 Rd4 Bh5 Bb3 Bf7 Rd5 Qe4 Rd6 Qb7
R5qb/1P2B2B/rn2N1B1/1qn1pQ2/Bk2PB2/1b1Brq1K/n1b1R3/7R w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 f4 Nb8 fxg5 Bh6 Nh3 Bg7 Ng1 Bf8 g4 h6 g6 Rh7 Nd2 Rh8 Ne4 h5 g5 Bh6 Nf2 Bf8 Ng4 hxg4 Kf2 d5 Kg3 Kd7 h4 f5 b4 e5 e4 a5 c4 a4 h5 d4 g7 a3 g6 a2 c6+ Kd6 h6 d3 h7 d2 c5+ Ke6 c7 Ke7 b6 Nf6 g8B Nbd7 b5 Ra6 g7 Nd5 b7 N7b6 b8R Nb4 c6 Kd6 Nf3 Kc5 Bb3 Be6 g8B Bg7 Ba4 Bb3 c8Q f4+ Kh2 g3+ Kh3 g2 c7 g1Q Qf5 Qd7 Nd4 f3 c8B f2 Qf3 d1B Bd3 Bdc2 Ra8 Qa7 Rb1 a1N Rb2 Na2 Bf4 Kb4 Ne6 Bf6 Bf7 Qg8 Bg6 f1Q+ Kg4 Qe1 Kh3 Qb8 Bd7 Qf2 Bde8 Bd1 Re2 Bbc2 Bef7 Nb3 Be8 Nc5 Bef7 Nbd7 b6 Bb3 Be8 Bdc2 b7 Nb6 Bed7 Qbe8 Bc8 Qb5 Bd7 Qf8 Bc8 Rg8 h8B Rg7 Bd7 Qg8 Bde8 Rd7 Bh7 Rf7 Bg7 Rc7 Bf8 Bh8 Beg6 Rd7 Bc4 Rd3 Be7 Re3 Bd3 Qxf3+
1bN3nN/1P1b4/1b1rNNNr/3pP1K1/2R2nq1/q2Q3R/kN2R1q1/4Bn2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 c4+ Kc5 h4 Kb4 e4 a5 b6 d5 e6 f5 e7 g6 e8R d3 c5 a4 c6 a3 c7 d2 h6 a2 b7 Bd7 c8N Ra4 h7 Nh6 h5 Be7 Bh3 Ra6 Ne2 Nc6 b8N Nd4 Na3 Rd6 Nc4 Ng8 h6 Bh4 Re7 Bg3+ Kg5 f4 Bg4 f3 Rh3 f2 Nf4 f1N Ne6 Ne2 b3 Bh2 Nb2 Ka3 b4+ Bg3 b5 Nf4 Rb1 a1Q b6 Ka2 b7 Qa5 Qe2 d1Q Qd3 Qa3 Bd2 Qf3 Rc1 Qb1 Be1 Qc2 Re8 Qcg2 Rc2 Bf2 e5 Ba7 Re2 Bb6 Na6 Ba7 Nac5 Bb8 Ne4 Ne7 Kf6 g5 Rf8 Ng8+ Kf5 Ka1 Nf6 Ka2 Rf7 Ba4 Rc7 Bd7 Bh5 g4 Kg5 g3 Bg4 Qh2 Rc4 g2 Rd2 g1B Re2 Ne7 Ng8 Qhg2 Nf6 Rf8 h8N Bb6 h7 Ng8 Ng6 Rf7 h8N Rh7 Rh4 Rh6 Rh3 Qfxg4+
R2b2N1/5k2/P1r1b3/N1Kn1N2/1r2Qn2/1N1bR1nN/qpnR1BPN/4n3 w - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 g5 hxg5 c5 cxd5 f5 exf5 c4 Bd3 Qd6 Bc2 Qd8 Bb3 cxb3 Ke2 e5 Kd3 b5 a4 h5 f4 b2 a5 e4+ Kd4 e3 d6 b3 g6 e2 f6 e1N f7+ Kd7 f5 b4 g7 h4 f6 Ke6 d7 h3 Qg4+ Kd6 Qe4 h2 Nh3 Nd3 Re1 h1N Re3 Be7 f8N Ra7 f7 Ne1 Ng6 Rb7 f8N Na6 Nh7 Nc5 Nh4 Nf6 g8N Ncd3 N7g5 Rh6 Ngf3 Ng3 Nh2 Nf4 a6 Rb8 Ra2 Qa5 d8N N6d5 Nc6 Be6 Nf5+ Kd7 d3 Ke8 Nd2 b1N Ba3 b2 Nb3 Qa4 Nca5 Bd8 Kc5 Kf7 d4 Rb6 Na1 b3 Bb4 Nc7 d5 Na3 d6 b1B d7 Bd3 Rd2 b2 N1b3 Ncd5 Bc3 Rb4 Bd4 Bf6 d8R Nac2 Ra8 Qa2 Ree2 Bd8 Bf2 Bc8 Re3 Rd6 Nc6 Be6 Nca5 Rc6+
B6B/3K1p1q/1R3r2/2BNbRR1/2kB1P2/2B2Nnn/r1r1b2P/br3nN1 w - - 0 1 legal: proof: e4 c5 g4 d5 b4 dxe4 bxc5 b5 a4 h5 gxh5 a6 Qe2 b4 Qb5+ axb5 axb5 Qd5 Ra4 Qd6 Ra1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 c4+ Kd4 h6 b3 h7 e6 b6 b2 b7 e3 c6 e2 c5 e1R c7 Nf6 c6 Ne4 Bg2 Kc4 Ke5 g5 d4 g4 f4 g3 d5 Ra2 d6 Qh4 d7 Re2 d8B Bg7+ Bf6 Rc2 Bd2 Na6 b8B Nb4 Ba7 Ba6 c8N Nd5 c7 Ne3 Bc3 Nf1 Bc5 Qh6 Bf3 g2 Ne7 Neg3 Kd6 e5 c8R e4 Kd7 e3 Bfd4 e2 Ba8 e1B Nd5 Be5 Rb8 Rg8 h8B Qh7 Rb5 Rg6 Rb6 Rf6 Nd2+ Kd3 Bb7 b1R Ndf3 Kc4 Bc6 Bd2 Ba8 Bc1 Rb3 Bb2 Rb6 Re1 Rd1 Ba1 Rd3 Rb1 Re3 Bc7 Re5 Bb8 Rf5 Be5 Ne2 Ne3 Rc1 g1N Rg5 Nh3 Neg1 Nef1 Re1 Bc7 Ree5 Bd6 Ref5 Be5 Rd6 Kb3 Rc6 Be2 Rb6+ Kc4
2b1n2n/1N4bB/2R1B3/1rBB4/2p1Q3/BBrq3b/1n1PR2P/qk1KR1b1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 g5 axb5 Be7 c4 Bc5 Qa4 Bf8 Nc3 Ba6 Nd5 Bc8 Nf4 d5 cxd5 Qd6 Qe4 Qd8 Qf5 gxf4 g5 Qd7 Qh3 Qd8 Qg4 hxg4 e4 Kd7 b4 c5 d6 Ke6 d7 f5 g6 a5 g7 f3 b6 f2+ Kd1 a4 b7 g3 b5 c4 b6 a3 Nh3 g2 Ng5+ Ke7 e6 Kf6 e7 Ke5 e8B Kd4 e5 g1B e6 a2 e7 f4 Ne4 f3 Bd3 f1B Nd6 f2 Ba3 Rh3 Bf7 Nf6 e8B Nc6 g8B Ne7 b8R Ra5 b7 Rb5 Be6 Bg7 Bdh7 Rc3 Bd5 Qa5 d8B Ng6 Bge6 Kd3 Bb6 Bh3 Bbc5 f1N Ra8 Qd8 b8Q Ng3 Ra6 Nge4 Qb7 Nh8 Rc6 Qd7 Rc1 a1Q Qa8 Qd8 Nb7 Qd6 Bh5 Ne8 Bf3 B1d4 Rf1 Bg1 Re1 Qg3 Re2 Qg6 Bf8 Nc5 Rb1 Na4 Bfe4+ Kd4 Bc2 Qe4 Bb3 Kd3 Bfc5 Qg6 Ke1 Qf5 Ba2 Kc2 Rd1 Qc1 Bb3+ Kb1 Qb8 Qd3 Qf4 Ka1 Qe4 Qc2 Rg2 Q2b1 Ke2 Qbc2 Re1 Q1b1 Bc1 Qd3+ Kd1 Qa2 Rge2 Kb1 Bb2 Qa1 Bba3 Nb2+
BR3NKn/1N1rn2N/R1n5/NN1BB3/1R3rr1/5P1P/p1r5/1n1bq1nk w - - 0 1 legal: proof: e4 f5 exf5 c5 d4 cxd4 a4 h5 g3 b5 axb5 e6 Qf3 Bd6 Qg4 Bf4 gxf4 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 b4 a5 c4 d5+ Kd3 g3 h3 g2 b6 e5 b7 a4 b5 e4+ Ke2 a3 c5 e3 Kf3 d3 Kg4 d2 b6 d1R c6 e2 c7 e1N Nc3 d4 Bb2 d3 Nge2 g1N Nc1 d2 Nd3 Nc6 b8R Nef3 b7 Qe8 Bg2 Nh4 Nc5 Ng6 Bd5 Nh6+ Kh5 g4 Nb5+ Qe5 Ra2 g3 f3 g2 Bc3 Bd7 c8B Ra4 Rb2 Rh7 Rb4 Rc1 Bb2 Rc2 Bd4 Ne2 Ra1 Rg7 Ra2 Nf7 Bc3 Nfd8 Kh6 d1R Bb2 Rg8 Kh7 g1N Ba1 Rf8 Bd4 Rf7+ Kg8 Nc3 Ra1 Be8 Bce6 Rdd2 Be4 Rd7 B6d5 Nf7 Ra2 Rg2 Ra1 Ke7 Ra2 Qe6 Be5 Rg4 Ra1 Qd6 Ra2 Nfh8 Ra1 Qc7 Ra2 Qc8 Ra1 Nb1 f6+ Kd8 f7 Ke7 f8N a2 f5 Qc7 Nh7 Qa5 Ra8 Rf4 b8N Rg4 Nb7 Rf4 Rb3 Qe1 Ra6 Rd4 Rb4 Rg4 Bb3 Rdc4 f6+ Ke6 Bd5+ Kf5 f7 Rcd4 f8N Rdf4 Nf6 Kg5 N6h7+ Kh4 Be4 Kg3 Bbd5 Nc3 Rc1 Kg2 Rcb1 Kh1 R1b2 Na7 Nc6 Nb1 Nca5 Nc6 Bc4 Rd4 Bed5 Bd7 Bb3 Bf5 Be4 Rd7 Bed5 Bd3 Be4 Be2 Bbd5 Bd1 Nc5 Qc3 Rd4 Qb3 Bf7 Rd2 Nc3 Nb4 Ba8 Rdg2 Bfd5 Nc6 Re4 Qa4 Rb8 Rc2 Nb5 Qb4 Ncb7 Qe1 Rb4 Nge7+
4R1bR/1BRbnqn1/3Q1NrR/3P1BB1/3n2R1/1P6/p1r1R1qp/K4k1b w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 h4 Qf6 Na3 Qc3 Nc4 Qb4 Ne5 Nh6 Nef3 gxf3 g4 Be7 g5 Qd6 g6 Bg5 hxg5 Ng8 Rh5 Qd7 Rh1 Qd8 d4 Kd7 Kd2 Kd6 Kc2 a5 Kb1 c5 e4 f5 b6 h5 g7 c4 b3 a4 b7 a3 g6 f2 Qd2 f3 Qc2 h4 Bd2 a2+ Kb2 f4 Ba5 h3 Be1 h2 Bh3 f1Q Bf5 f2 Ne2 f3 Ng3 Qe7 Qd3 Qf7 Nh5 Ra6 Bd2 Qg2 Nf6 f1B Re1 f2 Re2 c3+ Ka1 c2 Bg5 Ne7 g8B c1N g7 Nd7 b8R Nc5 Ra8 Rc6 Ra6 Bd7 Qd2 Ne6 e5+ Kc7 Bgh7 Rc2 g8R Ng7 e6 Kb7 Bhg6 Rh6 Rh8 Kc7 d6+ Kb7 Ra7+ Kc6 Rc7+ Kb5 Bh5 Rg6 Bf3 Kb6 Rh5 Kb5 Qf4 Kb4 Bc6 Kc3 Rh6 Nc8 Rg1 Ne7 Re3+ Kd2 d5 Ne2 Bb7 Nd4 Qg3 Bfb5 Qe5 f1B Re2+ Kd1 Qf4 Bc8 d7 Bc6 d8R B6d7 Re3 Kd2 Qd6 Be2 Rdh8 Bf3 Re4+ Kd3 Rg4+ Ke2 Re1+ Kf2 Re2+ Kf1 Be4 Qf2 Bf5 Bh1 Qa6 Qg2 Qd6 Nec6 e7 Be6 e8R Bcd7 Reg8 Ne7 Ra8 Qf8 Rb8 Bg8 Re8 Qf7
rN1N3K/B1bq4/R1N2Bp1/PQ1B1n1p/B7/2rq1nPb/nq6/1B2Bk2 w - - 0 1 legal: proof: b4 a5 h4 axb4 c4 e5 f4 d5 cxd5 g6 fxe5 Ra7 a4 Bh6 h5 Bf8 Ra3 Ra8 Rg3 Qf6 hxg6 Qd6 g7 Qd8 Rg6 fxg6 Kf2 Kd7 Ke3 b5 Kf4 h5 e4 c5 d4 b3 g3 b4 d6 Ke6 d5+ Kd7 e6+ Ke8 Ke5 c4 d7+ Ke7 Qd3 c3 Bd2 b2 Be1 c2 Qb5 c1N Nf3 b3 Ng5 Nf6 g8B Qb6 Nd2 b1Q Bd3 b2 Nf7 Qa2 Bb1 Qc4 Nd8 Qb3 Nf3 Qa5 Nd4 Bh6 d6+ Kf8 e7+ Kg7 e8B Nh7 Bd5 Ng5 N4c6 Qd2 a5 Rh7 Rf1 Na2 Rf6 Nf3+ Ke6 Be3 e5 Bb6 Ke7 Kh6+ Kf8 Kg5 Kg8 Kg4 e6 Kh3 e7 Rf7 Kh8 Kg2 Nd4 Qf2 Bbe4 b1Q Qa4 Qb5 N8e6 Bc7 d8B Na6 d7 Bd6 Bb6 Kg1 d8B Bf4 Ba7 Nc7 Qb3 Qb7 Ba4 Kf1 e8N Nb5 N8c7 Qfb2 Na6 Nd6 Nb8 Rc7 Qb5+ Rc4 Be7 Qd1 Bb1 Qd3 Nd8 Bh3 Re6 Rc3 Bf6 Nf5 Ra6 Qd7 N4c6 Bc7
N3B3/pkr1n2r/2R2PbB/b2K1N2/n3n3/2BP1QN1/p1nnB3/2BB2q1 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 Kf7 exf5 Ke8 a4 bxa4 g4 h5 b4 g6 g5 Kf7 Ra3 Ke8 Rg3 Qd7 fxg6 Qd8 Rg4 hxg4 f5 Bb7 Ne2 Ba6 Ng1 Bc8 Kf2 Kd7 Ke3 c5 Ke4 Kc7 h4 e5 h5 c4 b5 a3 d3 c3 g7 c2 d6+ Kb6 g6 a2 Bh6 c1N d7 g3 Qf3 Qe8 d8N Ba3 Kd5 e4 Nd2 e3 Nb7 e2 Nc4+ Kc7 b6+ Kd7 Nbd6 e1N b7 Kc7 Ne2 g2 Ng3 Nb3 Nb6 Bb2 Rh4 Nd2 Rc4+ Nc6 Qg4 Rb8 Na8+ Kd8 Qf3 g1N Rc3 Ne5 Rc1 Ng4 Rc7 Ne2 Rc6 Nb1 Bc1 Nc2 h6 Bc3 h7 Nf2 Bh6 Bb4 Bc1 Bd7 Bh6 Rc8 b8B Bc5 Bc1 Qe3 f6 Ne4 Ndf5 Qf2 Bd6 Qe3 Be5 Bb6 Beb2 Na1 Bd4 Qg1 Be5 Be8 Beb2 Nd4 Be2 Nbd2 Bc3 Ne7+ Ke5 Qe3 g8B N4b3 g7 Nbc5 Bb3 Rc7 g8B Kc8 Bbd1 Qg1 Bf7 Ba5 Bg6 Na4 Bh5 Rf8 h8B Nc2 Bg7 Kb7 Bh6 Rh8 Bf7 Nc8 Kd5 Rh7 Bg8 Bh5 Bf7 Bg6 Be8 Ne7+
1B5B/2P1rQr1/4bK1k/B2Bn1R1/4BpP1/Br1Np1n1/1bbbq3/N4N2 w - - 0 1 legal: proof: f4 b5 b4 d5 a4 g5 axb5 h5 g4 c6 d4 h4 Ra3 c5 Rg3 hxg3 fxg5 cxd4 e4 Qa5 exd5 Qd8 Ke2 a5 Kd3 e5 Ke4 a4 h4 d3 c4 d2 d6 a3 g6 g2 h5 a2 b6 a1R d7+ Ke7 Kf5 e4 b7 e3 g7 f6 h6 Kf7 c5 Bd6 b5 R8a6 c6 Qe8 h7 Bf4 b6 R6a2 Nh3 g1B Qf3 d1B Bd3 Ra3 Nf2 Be5 Be4 Bb2 Nd2 Rb3 Nd3 Ra7 Rh5 Bc2 Rg5 Bf2 Nf1 Be1 Qf4 Bd2 Qc7 Na6 b8N Nc5 b7 Qf8 Na6 Nh6+ Kf4 f5 g8B+ Kf6 b8B Nf7 Nab4 Ne5 Bgd5 Rg8 h8B+ Rg7 Qb7 Qg8 Qc7 Qe6 Qb7 Kf7 d8B+ Kg8 Ba5 Kh7 Qe7 Kh6 Qf7 Re7 c7 Qd7 Na2 Qb5 Nab4 Bbc3 Ba3 Be6 Ba8 Bb2 Bad5 Bd1 Nc2 Qa6 Nc1 Qe2 Na1 Bc2 Nd3 Nb7 Kg3 f4+ Kh4 Nd6 Rg6+ Kh7 Kg5 Nf5 Kf6 Ng3 Rg5+ Kh6
3R1r2/4NRq1/3n4/2PR1qBN/1rrQN1bR/p3nkpP/K2r4/R3R1b1 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kd2 d5 b4 Kd7 c4 Kd6 Kc2 Ke5 Kb2 Ke4 b6 a5 b5 e5 h3 d3 g7 d4 b7 g3 f6 a4 g6 a3+ Kb3 d2 b6 d3 f7 Na6 b8R Nb4 b7 Qd5 Nf3 Ne7 g8R Nf5 g7 Rh4 Rh8 Nc2 g8R Nce3 Nh2 Nd6 Re1 Bg4 Ka2 Qa5 Qa4 d1R Rg5 d2 Nc3+ Kf4 Rd8 e4 b8N Qf5 Nc6 Rb8 Qb3 Rb4 Qa4 Bg7 f8R Bd4 c5 Rc4 Re2 Rf1 Ne7 d1R Rf7 Rf2 Qb4 Rd2+ Qb2 Rf3 Re1 Rf1 Nf3 Rff2 Ne5 Rf1 N5g6+ Kf3 Rhh7 Ng2 Nb1 Qf4 Nc3 Rb4 Rd5 e3 Rb8 Bd7 Rdh5 Rd3 Rd8 e2 Qd2 Bg1 Rd1 e1Q Rff5 Qe5 Re1 Qh8 Rff8 Qg7 Rd5 Be6 Qd1+ Kf2 Rh5 Qf3 Bg5 Rhc4 Nf4 Bg4 Rh4 Ne3 Nh5 Kg2 Qd2+ Qf2 Qb2 Rd2 Ne4 Qf4 Rf6 Qe5 Rh6 Rf7 Rf6 Rf8 Rf7 Qe6 Nc8 Qf5 Ne7 Nc2 Qe5 Kf3 Qd4 Ne3+
nr6/p1R2Kb1/3n2Bq/NBRN4/N1B1b3/Rr6/1PBp1Pbk/q1b2B2 w - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 g5 hxg5 f6 d4 Ne7 dxc5 Ng8 Qd4 Bb7 Bf4 exd4 e5 Ba6 e6 Bc8 Be5 fxe5 Ke2 Ke7 Kf3 h5 Ke4 d5+ Kf5 h4 Kg6 h3 c4 d3 g4 h2 b6 d2 b7 d1B c6 Kd6 c7 e4 c5+ Ke5 e7 Kf4 e8B d4 c6 e3 Kf7 d3 g6 e2 g7 e1B g5 Ba4 g6 Bh3 c8R Qa5 c7 Bd2 Nc3 Nd7 b8N Qg5 Nc6 Ne7 g8B Nb6 g7 Qh6 Nd5+ Kg4 Bh7 Bg2 g8B Bc1 Na5 Bc6 Bg6 Nf5 Ra3 Bg7 Ne2 Kh3 Nec3 Rb8 Na4 Na8 Rg1 Bb7 Bb5 h1Q B8h7 Kh2 Bg8 Bf3 Rg5 Be4 Nb4 Rh7 Bh3 Bd2 Rh5 Qg5 Ke8 Bf3 Bgc4 Bbe4 Kf7 Qa1 Bf1+ Qh4 Rg5 Bc1 Rh5 d2 Rg5 Ne7 Rc5 Bg2 Nd5 Rh5 Rd8 Rg5 Rd7 Nf5 Re7 Rg3 c8B Bb1 Rec7 Qh6 Bcd7 Rb3 Be6 Ng3 Bg4 Bbe4 Bd1 Nf5 Bc2 Nd6+
6b1/1BqPK1n1/R1BN1RNr/4N1pr/P3Nq2/3N2r1/pRb4b/3k1qB1 w - - 0 1 illegal: No proof kernel
rb2b3/2rB2Pq/PkN5/1qNp1bRr/2Q1nK1N/N1N1R2N/6p1/R6r w - - 0 1 legal: proof: e4 a5 d4 d5 f4 c5 dxc5 g5 fxg5 Bf5 b4 axb4 e5 Bc8 g4 h6 g6 Nd7 g5 Ndf6 g7 Ne4 g6 Nd6 Bg5 hxg5 exd6 Rh5 Bg2 Rh7 Bf1 Rh8 Ke2 Kd7 Ke3 Kc6 a4 e5 h4 f5 c4 b5 a5 g4 h5 g3 h6 g2 h7 e4 a6 b3 d7 b4 Qe2 b2 Nc3 b1R Rh3 b3 Kf4 b2 Re3 Nh6 g8R Qb6 d8N+ Kc7 c6 Qb5 c5 Rc1 Nh3 b1Q Qc4 Ng4 Nb7 Nf6 Be2 Bd7 Bg4 Be8 Rg7+ Kc8 c7 Bd6+ Kg5 Bg3 Rg8 Kd7 c8N Kc6 Nb6 f4 Bd7+ Kc7 c6 f3 Rg7 f2 Nc5 f1B Kf5 Bd3 Rg8 Kd6 c7 Be5 c8N+ Kc7 Ne7 Bc2 Rd3 e3 Nc6 e2 Rg7 Ne4 Re3 e1R Kg4 Rf8 h8N Rf5 Rg8 Rh5 Kf3 Bg7 Kf4 Bf6 g7 Rh1 Ng6 Bh4 Rf8 Be1 Rf5 Bg3+ Kf3 Bh2 Nh4 Bg3 Rg5 Bf4 Nc8 Bd3 N8a7 Kb6 Kg4 Bb8 Kf3 Nd6 Kg4 Bf5+ Kf4 Ne4+ Ne5 Qc6 Nab5 Qg6 Na3 Qh7 Rf3 Qb2 Re3 Qb5 Qa2 Bf7 Nb7 Be8 Nd1 Rc7 Nc3 Rh6 Nc6 Qd3 Nc5 Qb5 Qc4 Rh5
n2b4/3r1b1k/R1NRrPR1/1Q1bN3/2P1rr1K/R1BRr2p/p3N3/2Rn4 w - - 0 1 illegal: No possible last move, all moves rejected
6n1/1q1R1np1/PR4R1/b1r3R1/kB1rB1N1/3Q1pBR/q2p2P1/R3r1bK w - - 0 1 legal: proof: b4 a5 Nh3 axb4 Ng5 Ra7 Rg1 Ra6 Rh1 Ra8 Nxh7 d5 c4 e5 cxd5 Be7 d6 Bf8 e4 Qd7 d4 Qa4 d5 Qa3 Nc3 Nf6 Ne2 Ng8 Nd4 exd4 f3 Bf5 e5 Be4 fxe4 Qg3+ Ke2 Qg5 Ke1 Qd8 Kf2 Kd7 Kg1 c5 a4 b5 h4 f5 h5 f4 e6+ Ke8 a5 f3 e5 b3 a6 c4 d7+ Ke7 h6 c3 Bd2 b4 Nf6 c2 h7 c1B Rh3 d3 Ng4 b2 Kh1 Qa5 d8R b1R Rd7+ Ke8 e7 b3 d6 b2 Bc3 Be3 Bb4 Bg1 Qc2 d2 Bd3 Re1 Be4 b1Q Qd3 Qb2 Rh5 Qb5 Rg5 Nc6 Rg6 Rc8 Rg5 Kf7 e8R+ Be7 Red8 Ke6 Re8 Rc7 Rb8 Nd8 Rb6 Nf7 Rg6+ Bf6 Rg5 Rc5 Rg6 Ngh6 Rg5 Rd8 h8R Ng8 Rh3 Qc6 Rg6 Qb7 Rg5 Qa2 Rg6 Nfh6 Rg5 Be7 Rg6+ Kf7 e6+ Ke8 Rg5 Bf6 e7 Bc3 Rg6 Rc4 Rg5 Rdc8 Rg6 R8c5 Rg5 Rd4 Rg6 Kf7 Rg5 Ke6 e8R+ Ne7 Rc8 Neg8 Rcc6 Nf7 Rd8 Qa8 d7+ Ke7 Rcg6 Qb7 Ba3 Ba5 Bb4 Nfh6 Rb8 Nf7 d8B+ Kd7 Bc7 Qad5 Bg3 Qa2 Rbd6+ Kc7 Bc6 Kb6 Rd7 Rcc4 Bd5+ Kb5 Be4+ Ka4 Nf2 Qa8 Ng4 Rc5 Rbb6 Qb7
1b4N1/p1Bn1k1r/6N1/1ppqPB2/nN2r3/1B1b3P/3K1NN1/1Q1nR1nN w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 d5 gxh5 Qe7 c4 Qd7 cxd5 Qd8 a4 Qd7 b4 Qd6 a5 Qd8 a6 bxa6 b5 Ne7 b6 Ng8 Ra5 Kd7 Rc5 Ke8 Rb5 axb5 e4 f5 d4 c5 h3 g5 b7 f4 h6 g4 d6 f3 d5 f2+ Kd2 g3 e6 g2 e7 Na6 b8N Be6 d7+ Kf7 e8B+ Ke7 h7 Nh6 d6+ Kf6 Nc3 Bb3 Bd3 Qb6 d8N Nc7 d7 Bc2 Nge2 g1N Ng3 Nf5 Ndc6 Qa6 d8N Be7 Bf7 Qb6 Ne6 Na6 Nb4 Nd6 Nf4 Qc6 Bb3 Qd5 Nd7+ Kf7 Ng2 Nc8 Nf6 Nb6 Ng8 Bd6 e5 Rd8 Nce4 Nb8 Ba3 Bc7 Qb1 Na4 Bb2 Nd7 Bc3 Ne2 Re1 Ng1 Nh1 f1N+ Kc1 Bb8 Nef2 Ne3 Bf5 Bd3 Kd2 Nf6 Nc2 Nd1 Ba5 Rd6 Nb4 Nd7 Bb6 Rg6 Bc7 Rg4 Nf6 Rf8 Ng8 Re4 h8N+ Ke8 Re2 Rf7 Ng6 Rh7 Re1 Kf7
B3B3/b3QB1B/Bpb1K3/4r2p/2nRn3/NPn1qRPq/n3p1R1/3B3k w - - 0 1 illegal: No proof kernel
1qb2Qr1/n2nrNp1/k4N1K/Np3P1N/2N4q/p5BB/N1R1BPn1/4n3 w - - 0 1 illegal: Other
3KN2N/1p4N1/5rqN/2NPQB2/BB4p1/PNb2q2/Rp6/q2nnrqk w - - 0 1 legal: proof: b4 a5 f4 axb4 c4 e5 fxe5 d5 cxd5 f5 g4 f4 a3 Bf5 gxf5 Ne7 Ra2 Ng8 Rc2 h5 Rc3 Qe7 Rg3 Qd8 Rg4 hxg4 Kf2 Ke7 e4 c5 d4 g5 h4 c4 f6+ Kd7 f7 f3 Ke3 f2 e6+ Kd6 e7 g3 e8N+ Kd7 d6 Ke6 d5+ Ke5 d7 c3 h5 g2 h6 b3 h7 g4 Qe1 b2 Ne2 g1Q Bd2 c2 Nd4 c1Q Nb3 Qcc7 Nc3 Bd6 f8N Qe7 d8N Qf6 Nfe6 Qcg7 Bd3 Bb4 Na4 Ra6 Nac5 Qgg6 N6g7 Nh6 Bb1 Rg8 h8N Nc6 Bd3 Ba5 Bb4 Nd4 Bc2 Rb6 Kd3 Kf4 Kc4 Kg3 e5 Kg2 e6 Qf3 e7 Nhf5 Qe5 Qa1 Ndf7 Rf6 Nh6 f1Q+ Bd3 Nc2 Kb5 Qfb1 Rd1 Nfe3 Bf5 Ne1 Rc1 Bc7 Rd1 Bd6 Kb6 Rgf8 Rc1 Kh1 Rd1 Qd3 Rb1 Nd1 Rc1 Qa2 Ra1 Qab1 Ra2 Qa1 Na4 Bc5+ Kc7 Qdb1 Kd8 Bd4 Nac5 R8f7 Nd6 Bc3 e8B Qc1 Ba4 Qce3 Nde8 Qg1 Bfd7 Qe2 Bc8 Rf1 Be6 R7f6 Bf5 Qf3
1R2N1q1/3bN3/pB4p1/2bn1R1R/PP3NpR/1p1Q3K/r2n1qR1/3kbR2 w - - 0 1 legal: proof: d4 c5 b4 e5 dxe5 f5 g4 fxg4 Bg2 a6 Be4 b5 Bg6+ hxg6 Bd2 g5 Bc1 Ra7 c3 Rb7 bxc5 b4 Qd5 b3 Qd1 Rb4 cxb4 Rh6 Nc3 Rh5 Nb1 Rh8 Kf1 Kf7 Kg2 Ke6 a4 Kf5 f4 Ke4 h4 d5 h5 g6 h6 d4 c6 d3 f5 g3 e6 d2 c7 Ke3 e7 Bd7 e8R+ Ne7 c8R Qa5 f6 Bf5 h7 Qe5 f7 Qc7 Rh5 Rg8 h8R Qc5 Nh3 Bd7 Nc3 Nc6 Rb8 Ne5 Nf4 Nc4 Rb1 Bg7 f8R Qf5 R8h6 Rh8 Rh7 Qe6 Rf5 Nd5 Kh3 g2 R7h6 Kf2 e4 g1B e5 Qg8 e6 Bd4 e7 Bc5 Qf3+ Ke1 Qd3 d1Q Be3 Nd2 Rf8 Rh7 e8N Bf2 Rb2 Qe2 Rh4 Bg3 R6h5 Qf2 Rf6 Re7 Bd4 Re2 Rf7 Ne3 Ncd5 Kd1 Ne7 Nd5 Rf8 Bd6 Bb6 Bc5 Ne6 Qd4 Rf1+ Be1 R8f5 Qf2 Nf4 Re4 Rg4 Rc4 Rg2 Rc1 Rc2 Ra1 Rc4 Ra3 Ne6 Ra1 Rch4 Ra2 Nf4 g4+
B1NQ3b/3K1BpN/2P1p1n1/p2B2B1/2Nkpqn1/Pp2rR2/3q3B/2nB4 w - - 0 1 illegal: Other
1R4qB/nbR5/2p1pq1k/p2pR1p1/3KNP1B/P2R1pRr/2R4r/3Q3B w - - 0 1 legal: proof: f4 g5 fxg5 c6 d4 Bh6 e3 Na6 d5 Nb8 d6 Bg7 Be2 Bd4 Bf1 Bb6 c4 Bc7 dxc7 b5 Kf2 bxc4 Ke2 Nh6 Ke1 Ng8 g4 f5 g6 f4 g7 h6 g5 f3 g6 Na6 Nc3 Nc5 Ne4 Ne6 Ng5 Nf4 exf4 hxg5 Kd2 a5 Kc3 d6 b4 Qd7 h4 Qf5 b5 Qe4 b6 Rh7 b7 Qe2 b8R Qh2 a3 Rh6 h5 Qe2 Rh2 Qe6 Nh3 Qg4 Kd4 c3 Rc2 Qg2 Nf2 Ra7 Ne4 Qh2 Bg2 Rb7 Bh1 Rb2 Be3 e6 Rb5 Rh7 h6 Bb7 Re5 Ne7 Bf2 Nc8 Bh4 Na7 c8R+ Ke7 g8R d5 g7 Kf7 Rh8 Kg6 g8R+ Kh5 Ra2 Qh3 Rd2 c2 Rc7 c1Q Rb8 Qa1 Rd3 Rh2+ Rb2 Qb1 Rc2 Qf5 Nd6 Qf6 Ne4 Rf7 h7 Kh6 Rhe8 Rh3 h8B Rh7 Rg8 Ba8 Rbb2 Bb7 Rb8 Qa1 Rg2 Qg7 Rg3 Qg8 Kc5 Rh2 Rc2 Rh3 Rf5 Qag7 Re5 Qf6 Kd4 Rh2 Rg4 Kg6 Be1 R7h3 Bh4 Kh5 Rg3 Kh6
b1qQ3R/R1P1n1K1/2RbrR2/1r2N2p/2Bb1RrP/2b3n1/2R4B/2bB1q1k w - - 0 1 legal: proof: e4 b5 d4 f5 f4 c6 a4 c5 dxc5 g6 Nc3 g5 axb5 fxe4 f5 Bb7 Nce2 Bc8 Nf4 gxf4 Ke2 Kf7 h4 Kf6 g4 Ke5 b4 h5 c4 d5 g5 a5 b6 f3+ Ke3 a4 c6 a3 b7 f2 f6 a2 c5 d4+ Kd2 Kf4 b5 Kg3 b6 e5 g6 d3 Ke3 d2 f7 Ra5 c7 Rb5 g7 Nh6 g8B Bd6 f8R Nc6 b8R Ne7 b7 Nhf5+ Ke2 e3 Kd3 e2 Ke4 e1B c6 Ng6 Bb3 Rg8 Bfc4 Kg2 Nf3 f1Q Rf6 Bd7 Ra8 Qc8 b8R Re8 Ra3 Re6 Ra4 Bg3 Ra7 Bf4 Rb1 a1B Rb2 Be3 Rc2 Bad4 Rh3 Bf4 Rg3+ Kh1 Rg4 Bg5 Rf4 Be8 Ba3 Bf7 Bc5 Ng3+ Kd5 e4 Ne5 e3 Rba8 Qf8 c8R e2 c7 e1B Ba4 Qh6 Rh8 Qf8 Rb8 Qd8 Rb6 Qc8 Rc6 Be8 Qg4 Bh6 Qg5 d1R Bab3 Bec3 Ba4 Ne2 Ke4 Rd3 Kf5 Rg3 Ba3 Bd7 Bc1 Rg4 Be3 Qe1 Bg1 Qf1 Bh2 Be8 Rc1 Bf7 Bd1 Be8 Rc2 Bd7 Rb6 Bc6 Rba6 Ba8 Rc6 Nf8 Qg8 Ng6 Qd8 Bg5 Rf3 Bc1 Rf2 Rg2 Rf4 Ng3+ Kg5 Ne4+ Kh6 Rg4 Kh7 Ng3 Kg7 Ne7+
b2bq3/1RRn1k1r/BpK4P/Rr3q2/1Pr2Brb/4B1N1/n3R1r1/2RN2N1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 a4 g4 hxg4 Qb3 axb3 Ke2 e5 Kd3 g5 Ke4 c5 d4 b6 a4 g3 h4 g2 f4 b2 a5 g4 a6 c4 a7 g3 f6 c3 d6 c2 Kd5 e4 f5 e3 f7+ Kd7 h5 e2 f6 e1Q h6 Qde8 Ba6 Qf1 Be3 c1R Ra2 Qd8 Nc3 b1R Re2 Be7 f8R Rh7 f7 Rb2 Nd1 Rc4 Re8 Bh4 f8R Qf5+ Re5 Qe7 Rf7 Ke8 Rg7 Kf8 d7 Qe8 d8B Nd7 Bc7 Bd8 Kd6 Rbc2 d5 Ngf6 Ree7 Bb7 Bb8 Rb2 Bc7 Rc8 a8R Rbc2 Ra7 Ba8 Rb7 Rg4 Rg5 Rc5 Reg7 Ra5 Kc6 Rb5 d6 Ne4 Rgh5 Nc3 Rf7+ Kg8 Re7 Nf8+ d7 Na2 Rf7 Rb8 Bcf4 Rc8+ Kd6 Rc4 Rc7 Bf6 d8N Nd7 Nb7 Bd8 Re7 Kf8 Nc5 Kg8 Ne4 Kf8 Nh3 g1R Rg5 g2 Ng3 Re1 Reg7 g1B Rb7 Bf2 Ng1 Rf1 Re7 Be1 Reg7 Rf2 Rgh5 Nc5 Rgc7 Nd7 Rg5 Kf7 Rgh5 Rd4+ Kc6 Rg2 Rg5 Qd3 Rc5 Qf5 Rh5 Bf2 Rc1 Rc4+ Kd6 Qg5 Ne4 Bh4 Ng3 Re5 Bb5 Qf5 Ba6 Qe4 Rg5 Ra5 Rgc5 Qf5 Kc6 Rd4 R5c2 Rad5 Rc5 Re4 Ra5 Rb5 Bg5 Rd4 Bgf4 Rc4+
R1rr4/r2B2K1/2NN1Bpq/R1R5/3b4/1B2n1PN/RbP4k/1bqnb1Rn w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 g3 e5 fxe5 b5 axb5 h4 Qd3 h3 Qf3 Bc5 Qc6 Bf8 Qg2 hxg2 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf4 a5 e4 f5 b4 a4 h4 d3 h5 d2 b6 d1N b7 a3 h6 g6 h7 a2 b5 d4 b6 d3 Bb2 d2 Ba6 Ne7 Kg5 f4 Be2 f3 Nh3 g1B Nc3 f2 Nb5 f1Q Nd6 Bd4 Rg1 Nbc6 b8R Ra7 b7 Nb4 Ra8 Nd3 b8N N3f2 Nc6 Nh1 Bf3 Rg8 h8R Qd7 Bg4+ Nf5 Rh5 Qg7 Be2 Nfe3 Bc4+ Kd7 Bb3 Qh6+ Kh4 Ba6 Bc3 Bc4 e6+ Kc7 e7 Kd7 e8B+ Ke6 e5 Rh8 Nb5 Bb4 Bd7+ Kd5 e6+ Ke4 e7 Kf3 Nd6 Rc8 e8R Bf7 Rc1 a1B Re5 Bb2 Rc5 Bc4 Ra1 Bg8 Ba4 Ba2 Bb3 Bb1 Ra2 Qe1 Rf1+ Kg2 Rg1+ Kh2 Rca5 Bdc5 Bf6 Bcd4 Rc5 Ndf2 Rca5 Qc1 Rc5 d1R Rca5 Qf8 Rhc5 Be1 Kg5 Qh8 Be5 Qh6+ Kf6 Rd3 Kf7 Nfd1 Bf6 Rc3 Bd5 Rb3 Bc4 Rbb8 Bb3 Qh5 Kg7 Rd8 Rcb5 Rbc8 Rc5 Qh6+
4nBn1/b2R3N/p1r5/pb1Qq3/B1B3k1/PBn4b/5rPB/R1rr1BKR w - - 0 1 legal: proof: f4 c5 d4 cxd4 h4 e5 fxe5 g5 hxg5 b6 Nd2 Qc7 Nc4 Qd8 Na5 bxa5 Kf2 Ke7 c4 Ke6 b4 Kf5 e3 d5 e6 h5 g6 a6 e7 d3 e8B h4 b5 d2 a3 h3 b6 h2 c5 d4 b7 d3 g7 Qf6 c6 Qe5 c7 Bc5 Ba4 Nd7 b8B Ba7 Bb3 Ndf6 Nf3 Ne8 Ng5 Rh6 Nh7 Rc6 Bb2 Be6 c8R f6 Bc4 Bd7 Qb3 d1R Rc7 d2 Bd4 Kg4 e4 f5 Bc5 Bc8 Rd7 f4 Qd3 f3 Qd5 Rc1 Bd6 Rb8 Bf8 Rb2 Bb6 Qf6 e5 Rbc2 e6 Qe5 e7 Rd1 Rg1 h1R Bb3 Rcc1 Be3 Rh5 Rh1 Rf5 Kg1 Rf4 Kh2 Rf5+ Bf4 f2 Bg3 Re1 Bf4 d1N Bg3 Nc3 Bbc4 Ngf6 g8B Red1 Bf7 Ng8 Bb3 Nc7 e8B Rf4 Qb5 Rf5 B7c4 Rff6 Qd5 Rf5 Bg6 Ne8 Ba4 Rf7 Bgc2 Rf5 B2b3 Rf7 Bfd3 f1B Bf4 Be2 Bg3 Rf2 Bf4 Bf3 Bf1 Be2 Kg1 Bd3 Bh2 Be2 Ba2 Bd3 Bcb3 Bb5 Bc4 Kh4 B2b3 Kh5 Rd8 Bh3 Rd7 Kg4
B2B2r1/1b1p2b1/R1n1n1r1/3nRQ1N/B4q1P/2rP1B2/kBbn3p/B3K2R w - - 0 1 illegal: No proof kernel
R1b1B3/4p1kb/3p1R2/Bq2P1Pr/3bqrQB/7b/1N4nK/1n1BBBRn w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 g4 h6 g6 Ba6 Nc3 Bb7 Ne4 Bc8 g5 h5 Nf2 Na6 Ng4 hxg4 Ra2 Nb8 Ra4 Nc6 Ra1 Nb8 Kf2 a5 Kg3 f5 e4 d3 h4 f4+ Kh2 a4 c4 f3 b4 a3 g7 Kf7 c5 a2 h5 d2 h6 f2 h7 Ra7 c6 Qe8 b6 Ra4 b7 Nh6 g8B+ Kg7 b5 Nf5 b6 Na6 b8B Nc7 b7 Nb5 c7 Ng3 Nf3 Na3 Bf7 Nb1 Rg1 Nh1 Ne1 d6 Nd3 Qd7 Nb2 Qb5 Ba7 Rb4 Qf3 d1B b8B Bc2 Be8 Rd4 Bd2 g3+ Kg2 Ra4 Qg4 Bd3 Kh3 g2 Kh2 Rc4 Be1 Bc2 Be2 f1B Bd1 Ra4 Nc4 Bcd3 Baf2 Bc2 Bh4 Rb4 Bc6 Kg6 Ba7 Bh6 Bb6 Bg7 Bd7 Bc3 e5 Kg7 Be8 Bcd3 Na3 Re4 Nc4 Bd4 Nb2 Rg8 h8R Rf8 Rh6 Rh8 Rf6 Rh5 Bg3 Bc2 Na4 Rf4 Be1 Bh7 Bg3 Bc4 Re1 Bf1 Bf2 g1N Bg3 Bh3 Rf1 Re4 Be1 Ne2 Rg1 Nd2 Nb2 Nf4 Rc1 a1Q Rb1 Qaa4 Ra1 Qc2 Ra8 Ng2 Ba5 Qd5 Bc6 Nb1 Be8 Bb7 c8B Rf4 Bf5 Qb5 Bd3 Bc8 Bf1 Qe4
5BR1/np3qNn/bn1K1b1R/1r2nrRB/k1p1P3/2R1R1BN/b1P5/4N2q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 dxe5 g6 f5 Ra4 Qd4 Ra6 fxg6 Ra3 g5 Ra8 Qg4 hxg4 Kd2 f5 Ke3 c5 Kf4 d5 e4 Kd7 h4 Kc6 a4 d4 g7 d3 a5 Kb5 e6 b3 Ke5 g3 e7 f4 e8N f3 h5 b2 a6 f2 g6 g2 a7 Nd7+ Ke6 Qf6+ Kd5 Be7 Nd2 b1N h6 Na3 Be2 f1B h7 Qf3 Rh5 Nb6+ Ke5 Rb8 a8R Nf6 Nh3 g1N Ra2 Qf2 Nf3 Be6 Bf4 Rf8 h8B Rc8 Bh2 Nh7 Bg3 Bd5 Bd1 d2 Rh6 Bd8 Rb8 Ka4 Kd6 Ba6 Rb2 Rc7 Rc8 Ba2 Rb3 Bg5 Be2 d1Q+ Rd3 Qdf1 Ne1 Nf3 Re3 Ne5 Bh5 Qf3 g8R Bh4 Bg7 Q3h1 Rh8 Rf4 Rf8 Qc4 Rf6 Rf5 Bf8 Qf7 g7 Bg5 Rfg6 Bf6 Rb8 Rc8 g8R Rc7 Rg5 Rc8 Ng7 Rc7 Rd8 c4 Rc3 Rc5 Re3 Qc7+ Ke6 Nb5 Rdd3 Na7 Rc3 Qf7+ Kd6 Rb5
2q1RN1r/N3BBNK/1k1nN1R1/2p2qp1/2qrn1N1/2B1p3/4bPP1/n2Rb3 w - - 0 1 illegal: No proof kernel
bRNq2b1/1rBk1pN1/2p3q1/1R3q1B/1bB5/RPPr4/B3NpKn/2n3B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e6 d4 e5 Qd3 Rh7 Qg3 Rh8 dxe5 gxf4 g5 Nc6 Qh3 Nb8 Qg4 hxg4 Kf2 d5 h4 a5 e4 c6 g6 f3 h5 d4 h6 d3 g7 a4 h7 d2 e6 d1B e5 a3 c3 a2 b3 Ra4 b6 Rb4 b7 Qd3 e7 Qc4 Be3 Kd7 e8N Qf4 Ne2 Rb6 Rh5 Bb4 Nd2 Bc2 Ne4 Nh6 N4d6 Na6 b8R Bb7 Nc8 g3+ Kg1 Rf8 h8B g2 g8B Nc5 Bh7 Ng4 Ng7 Nd3 Rg5 Rd8 e6+ Kc7 e7 Nh2 e8B Ba8 Bf5 Nc1 Bed7 Rb7 Be4 Bb1 Bg4 Rd3 Rb5 Qf5 Bh5 Kd7 Bf4 Bc2 Bc7 Bb1 Ne8 Bc2 Bd4 Bb1 Kf2 Bc2 Ng7 g1Q+ Ke1 Qgg5 Bg1 Qd8 Kf2 Bb1 Kg3 f2+ Kg2 Bc2 Rb1 a1Q Rb2 Qa7 Ra2 Qac5 Ra3 Qd6 Bd5 Rf3 Bc4 Be4 Bd3 Q6f6 Bb1 Q6g6+ Ng3 Bc2 Bc4 Rd3 Ba2 Rd2 Bd5 Qd6 Nf1 Qff6 Ba5 Bh7 Bc4 Qf5 Bc7 Rd3 Ng3 Bg8 Ne2 Qdg6+
1Bb2r2/4P3/kpp1B2r/2P1r1r1/5b2/1pN1NqBR/1NBK2n1/1RbnR2B w - - 0 1 illegal: No possible last move
n4K2/prp2RBr/NR1N4/BNP1n1Nk/1b1q4/1P6/1rB3bp/R3n1rN w - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 gxh4 Qe2 Ke7 dxe5 Ke8 e6 Qg5 e5 Qd8 Qe4 fxe4 Ke2 h5 Ke3 d5 Kf4 d4 Kf5 d3 Kg6 h3 f4 e3 c4 h2 g4 e2 f5 e1R f6 h4 e7 h3 c5 d2 b6 d1N b7 Nc6 b8N Bb7 g5 Nd4 b3 Re2 Nc3 Bc8 Na6 Nh6 f7+ Kd7 e8R Bb7 e6+ Kc8 e7 Kd7 Nf3 Ke6 Bd2 Ng4 Nb5 Nde3 Ba5 Bg7 f8B Rb2 Bd3 Nd5 Bc2 Rb8 Rhf1 h1R Rf2 Be5 Bg7 h2 Rf8 Bf4 e8N Rg1 Rf7 Rh7 Ned6 Nb6 Rff1 Na8 Rfe1+ Kd5 Re6 Bd2 Ref6 Qh8 Re6 Ne5+ Kf6 Ndc6 g6 Nd3 Ng5 Nce5 Ke7 Bb4 Ref6 Bc6 Re6 Rb7 Ref6 Qc8 Re6 Qd7+ Kf8 Qd8+ Ne8 Qc8 Bh6 Nf3 g7 Nde1 g8N Ne5 Bg7 Qd8 Nh6 Qd7 Ng4 Qd8 Na3 Kd4 Rg6 Bg2 Nf2 Ke3 Nh1 Qd4 Rb6 Ke2 Nd6 Ke3 Bf5 Kf4 Bc2+ Kg4 Nab5 Kh5
4R3/3n1Nq1/1QRb2R1/p3pr1r/2pPb3/PnN2k1b/3RbnRR/2B1KN2 w - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 b4 d5 h4 gxh4 bxc5 Nd7 c6 Nb8 c5 Kf7 Bb5 Ke8 Bc4 dxc4 d4 Kf7 g4 Kf6 f4 h5 a3 e5 c7 b5 c6 a5 Ra2 b4 Rhh2 b3 Nf3 b2 Nc3 b1N Rad2 h3 Qb3 h4 Qb6 Nd7 Rhg2 Qe8 Nh2 Bd6 Nf1 Nh6 Rh2 Qg6 g5+ Ke7 f6+ Ke6 f7 Kf5 f8R+ Kg4 f5 Kf3 f6 Qg7 g6 Ng4 f7 Nf2 Rg8 Rh5 f8R+ Rf5 Rd1 Nd2 Re8 Nb3 Rd2 Rb8 Rg2 h2 Rh8 h1B Rh6 Qf7 g7 h3 g8R h2 R8g6 Qg7 Rh7 Bb7 c8N Rh5 c7 Be4 R2g4 Bg2 R4g5 Bh3 Rg2 h1B Rhh6 Bb4 Nd6 Rf5 Nf7 Bd6 c8R Bd3 Rh2 Be2 Rhg2 Ra8 Rc6 Rd8 Re7 Rh8 Rh4 Rhh5 Re8 Bg4 Rhh2 Bh3 R2g5 Kf4 Rg1 Be4 R1g2 Kf3
n2R1nRB/p2RbBb1/1N3B2/RKN2p1b/P3pR2/Pr1n2N1/1rk5/1q3b2 w - - 0 1 illegal: No possible last move, all moves rejected
5Nn1/bP6/kNN2p2/1NKRR1np/2B2NR1/4n3/3QpP1r/1qnrNbb1 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 g5 hxg5 dxe4 Ba3 Kd7 axb5 Na6 b6 Ke8 b5 Nb8 Bb4 cxb4 Ke2 Kd7 Ke3 a5 Kd4 h5 g4 b3 c4 f6 b7 Kc7+ Kc5 b2 d4 a4 d5 e3 g6 a3 g7 e2 g5 e1N g6 a2 Nf3 Ra3 Qd2 Ng2 Ne1 Ne3 Nc3 Bh3 Rd1 Nc6 b8N Kb7 d6 b1N d7 a1B b6 Nb4 Nb5 Nc3 Nc6 Ka6 b7 Nba2 Bd3 Qc8 d8N Bf1 Ne6 Nc1 Nf4 Qe6 Rg1 Qe4 Rg5 Rb3 Be2 Qb1 Re5 e6+ Kd4 Rh7 c5 Bd6 Bc4 Rb4 Nd8 Rh8 c6 Rb3 c7 Ne4+ Qb2 Rb4 c8N Ng5 Nb6 Bb8 Rd3 Ba7 Kc5 Rb3 Qd2 Ra3 Rf5 e5 Nde6 e4 Nf8 Be5 Rd5 Beb8 Rfe5 Rd3 Qc3 Rd1 Qd4 Ng4 Qc3 e3 Qd4 e2 Qd2 Ne7 g8R Ne3 g7 Rh6 Rh8 Rg6 g8N Rg7 Rh7 Rg6 Rg7 Bc7 Nh6 Ng8 Nf7 Bcb8 Nd8 Bc7 Re8 Be5 Nc6 Beb8 Nfd3 Bh2 Nf4 Bg1 Ree5 Ne4+ Kd4 Rg2 Rg4 Ng5 Kc5 Rh2
1NB4K/p3b2b/B2bnpp1/4B1PN/2n2bBB/k4P2/1Rn2RR1/br4Nr w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 d5 g4 h5 a4 bxa4 g5 d4 Qg4 Qd5 exd5 hxg4 Kd2 Kd7 Kd3 e5 Ke4 a3 Kf5 e4 c4 a2 h4 g3 b4 g2 h5 e3 h6 d3 b5 e2 b6 e1B b7 d2 d6 Kc6+ d7 d1N f3 Nc3 h7 Bg3 Rh2 Be1 Bd2 Bh4 Be1 Nd5 Nd2 Bg3 Rb1 a1B Rb2 Na6 Ne4 Nb6 Nf6 Bfd6 Nh5 Bgf4 Bh4 Nf6 Bd3 Nb4 b8N+ Kb7 Be2 Ne4 c6+ Kc7 c5 f6 Kg6 Nc2 Ba6 Nc4 Kf7 g6 Kg7 Be7 d8R Bg4 Rd2 Be6 Re2 Bg8 Rf2 Kd8 c7+ Ke8 c6 Nc5 c8B Ne6+ Kh6 Kd8 Bd7 Kc7 Bdc8 Kd6 c7 Kc5 Bd7 Ned4 Bg4 Ne6 c8B Bfd6 Ne2 g1B Rhg2 Bgh2 Ng1 Nd8 Kg7 Bhf4 Ra2 Kb4 Rb2+ Ka3 Bg3 Be6 Bh4 Rf8 h8B Bg8 Kh6 Bh7 Bg7 Rh8 Bf8 Bg8+ Kg7 Rh6 Rb5 Bh7 Kh8 Ne6 Rb1 Bb4 Rb2 Bed6 Nd7 Rb8 Be7 Rb7 Nb8 Bbc5 Bd8 Be7 Bc7 Rb5 Be5 Bcd6 Ng7 Rb4 Bg3 Rh1 Bh4 Rb3 Nh5 Re3 Nc6 Re1 Nb8 Rb1
Rn1rNN2/nq3q1K/r4B2/3Q1B1B/1B2b1Np/1Bp2p2/1bPB1p1P/6kn w - - 0 2 legal: proof: d4 e5 dxe5 g5 f4 gxf4 a4 b5 axb5 Qg5 Qd2 Qe7 Qd1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kh5 d5 e4 c5 g4 a5 b4 h6 Kg6 a4 g5 f3 b6 f4 b7 a3 b5 a2 b6 d4 Nd2 f2 Bd3 h5 Nf1 h4 Ne2 c4 Bd2 c3 Ne3 Qd5 Ng4 Rh5 Rf1 Nc6 b8B Na7 b7 Rh8 Bd6 Nf6 b8B Bb7 Bb4 Nd7 B8d6 Bh6 Be7 Nb8 Bf6 Rd8 Kh7 Qc4 g6 Bc6 Rb1 a1Q g7 Qaa6 Ra1 Qb7 Ra6 Nb5 Ra1 Ra6 Ra2 Na7 Ra5 Kd7 g8B Qe6 Ra2 Kc7 Ra4 Kb6+ Bf7 Qb3 e6 Bg5 e7 Qe6 e5 Be4+ Kg7 Kc6 e8B+ Kd5 Kh8 Bh6 Bg8 Bf8 Bh5 Bd6 Ba5 Ba3 Bb4 Bb2 Ra2 Qef7 e6 Qfd7 e7+ Qe6 e8N Qef7 Rg1 f3 Qf1 Nc8 Ra1 Bh7 Rg2 Rc6 Ra8 Na7 Nh6 Ra6 Bdg5 Bf5 Bb5 Ke4 Be3 d3 Rg7 d2 Ng4 d1N Bd7 Bg6 Bh6 Ne3 Qd1 Nf1 Nf4 Ng3 Ne6 Nh1 Nf8 Qe7 Bde6 Qf7 Bb3 Qe6 Bh7 Bf5 Rf7 Bg6 Bhg7 Kf4 Qd5 Be4 Ne5 Ke3 Bf5 Ke2 Ng4 Kf1 Kh7 Kg2 Bh6 Kg1 Bd2 Qexf7+
BB4nB/p1nbB3/2Q1Rp2/3KPN2/Pb1N1b2/1r2pr2/2p2kB1/B3N1qq w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 c4 bxc4 gxh5 Bd6 Bh3 Ba3 Bf1 Bf8 a4 d5 b4 Qf6 e4 Qg6 e6 Qf6 e5 Qd8 Ra3 Rh6 Re3 Rh8 Re4 dxe4 Ke2 Ke7 Ke3 c5 h4 g5 d4 c3 d5 c2 d6+ Ke8 d7+ Ke7 h6 g4 h7 c4 Kd4 c3 h5 g3 h6 e3 b5 g2 b6 Qc7 d8B+ Ke8 e7 Kd7 e8B+ Ke6 b7 Kf5 Nd2 Kf4 Kd5 Kg3 Bc6 Ba3 Bb2 c1B Qc2 Bb4 Ba1 Bca3 Ne2+ Kf2 Nd4 g1Q Bg2 Bg4 Be7 Na6 b8B Bd7 Rh2 Qb7 N2f3+ Kg3 Qg6+ Kf2 Ne1 c2 Qd6 Ba5 Rh4 B3b4 Rg4 Bc7 Rg6 Bd8 Re6 Nc7+ Kc4 Qh1 Bce4 Qg1 Qc6 Nf6 Bef3 Rf8 h8B Ng8 h7 Be8 Bc5 Bg5 Be7 Bf4 Be4 Nb5 Kd5 Bd7 Bc7 Rad8 Bb8 Qa8 Bg7 Rc8 h8N Rc7 Ng6 Rb7 Nh4 Nc7+ Kc4 Bc5 Bef3 Rb3 Nhf5 Bb4 Bh8 f6 Qa6 Rf7 Qb5 Rg7 Bb7 Rg3 Qc6 Nb5 Kd5 Rf3 Bbd6 Qe8 Bc7 Qh5 Bb8 Qhh1 Ba8 Nc7+
KBQ1Q3/1N1Q3n/3B2RQ/1Qb4q/1q2P1r1/3p1kP1/q1pp3Q/5q1N w - - 0 1 legal: proof: b4 b5 h4 g5 hxg5 a5 a4 Nh6 axb5 Ng8 b6 Bg7 Ra2 Bh6 Ra1 Bf8 c4 Ra6 b7 Bg7 b5 Rb6 Ra4 Bf8 Rb4 axb4 Rh6 Ra6 b6 Ra5 Rh1 Rb5 d4 c5 cxb5 c4 e4 c3 f3 Na6 Be2 Nc5 dxc5 d6 Bd3 Bf5 e5 Be4 Bc4 e6 Bd5 exd5 fxe4 Qc7 Bd2 Qd7 Bc1 Qd8 Ke2 Ke7 Ke3 Ke6 Kd4 f5 b8B h5 b7 h4 b6 c2 g6 b3 c6 h3 c7 f4 c8Q+ Qd7 g7 b2 Ne2 h2 Nd2 b1Q Nb3 f3 Na5 f2 Rg1 f1Q Bf4 h1Q Ng3 Qh6 Nh1 Nf6 g8Q+ Ke7 e6 Qb3 Qg6 Qh5 Qh6 Nh7 Qd3 Qde8 Qb5 Qeg6 Qbd7+ Kf6 e7 Qa2 e8Q Be7 Bc7 Rg8 b8Q Rg7 Qbb7 Rg8 Bb8 Bf8 Qa6 Be7 b7 Bf8 Kc3 d4+ Kb4 d3 Qab5 d5+ Bfd6 d2 Kc5 d4+ Kb6 d3 Ka7 Qc5+ Ka8 Qb4 Ba7 Rg7 b8Q Rg8 Nb7 Be7 Qh2 Qh5 Qcc6 Rg4 Qbc8 Qad5 Bab8 Kg5 g3 Bf8 Rg2 Be7 Rf2 Bf8 Rf6 Be7 Be5 Bc5 Bed6 Qa2+ Qca6 Rh4 Re6 Kg4 Rg6+ Kf3 Qdh3 Qab3 Qac6 Qe6 Q6d7 Rg4 Qh4 Qf7 Qg5 Qe6 Qh6 Qa2+
4b1N1/1Pn1Rp1R/1R1qN3/1b1Np1QK/N1b5/3nnPR1/k2Bn3/1R4q1 w - - 0 1 legal: proof: c4 a5 d4 d5 a4 b5 c5 Ra6 axb5 Re6 b4 Re3 b6 c6 b5 cxb5 c6 b4 h4 e6 g4 Rb3 e4 Bc5 dxc5 d4 Be2 Rf3 Bd3 Rf5 Bc2 Rd5 exd5 Ba6 Bg6 hxg6 Bb2 Bc8 Bc1 Rh5 gxh5 Qd7 Ba3 Qc7 Bc1 Qd8 Ke2 Ke7 Kf3 g5 Kg4 d3 f3 b3 c7 e5+ Kg3 a4 h6 g4 h7 g5 h8N b2 b7 d2 c6 Kd6 h5 Kc5 h6 Kb4 h7 a3 d6 a2 d7 Ne7 Nc3 Ka3 Rh6 Na6 Nd5 Nc5 Rb1 a1N Ne2 Ka2 Qg1 d1B Ng6 Ba4 h8R Bb5 Bd2 Nc2 R8h7 Ne3 Nf8 Nd3 Ne6 Qf8 d8R Bd7 c8N Be8 c7 Bc4 Rd7 Bb5 Ndf4 N7d5 Ne7 Bc4 c8R Nc7 Ng8 Qd6 Nd5 Bb5 Rc1 b1B Re7 Bc2 Rg6 Bb3 Rb1 B3c4 Rgg7 Na6 Rc6 Nc7 Kh2 g3+ Kh3 g4+ Kh4 g2 Rb6 g3 Kh5 Ng4 Qe3 g1N Qg5 g2 Rg6 Ne3 Nec3+ Ka3 Na4 Ka2 Qf4 Ne2 Rg3 g1Q Qf6 Nc3 Qg5 Ne2
Rbrk4/R4Pn1/3NKn1n/5Rq1/qQ1Rb2R/1RqP2b1/1rb5/Q2B3B w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 h6 b3 Kd7 Ba3 Ke8 Bd6 Nd7 Nc3 Nb8 Bf4 gxf4 Ne4 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Ke2 a5 Kd3 c5 Kc4 e5 h4 e4 h5 e3 h6 g3 h7 e2 d3 e1Q f7+ Kd7 b6 a4 b4 a3 b7 a2 f6 f3 d6 g2 Kd5 f2 b5 c4 b6 c3 g6 c2 g7 c1N Nf3 g1B Nd2 Nb3 Be2 f1B Rh4 Nh6 g8B Bf2 Ne4 Bg3 Qc1 Ra3 Bd1 Be2 Qc4 Be7 f8R Qc3 Qb4 Nd4 Bf7 Rg8 h8Q Ne6 Bh5 Ra7 Bf3 Ng7 Bh1 Ra3 f7 Rb3 Re8 Bf8 Re5 Qg5 Rf5 Kd8 d7 Rb2 Nd6 Bg4 Rc1 a1Q Rb1 Qa6 Ra1 Qa4 Ra3 Nc6 b8R Ne5 b7 Bh5 Ra1 Neg4 Ra8 Bg6 b8R Bh7 Ne8 Bfd6 Rb5 Bc7 Nd6 Bb8 Ra3 Ba6 Rb3 Bg6 Rb7 Bb5 Rc7 Qa1 Rca7 Ba4 Ra3 Bc2 Rb3 Ne8 Ke6 Qa4 Rc5 Be4 Rf5 Qc8 Qhc3 Ngf6 Qe5 Ra2 Qb2 Qc3 Qa1 Rb2 Nb7+ Kc7 d8R Rf8 Rd4 Rh8 Nd6+ Kd8 Rhf4 Ng7+ Ke5 Rf8 Ra6 Kd7 Ra5 Be1 Rh4 Rc8 R5a6 Kd8 R6a7 Nge8 Ke6 Bf2 Rfd5 Bg3 Rf5 Ng7#
n2Rq2K/1N1qP1PB/2Q2n2/B2b3q/B4B1N/2q5/QB1rr3/1b1Bbk1b w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 fxe5 Qe7 Ra3 Qf6 Rb3 Nc6 axb5 Qe7 b6 Nb8 b5 Qd8 Rb4 axb4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kh5 Kc4 g4 f5 e4+ d3 g6 d5 e6 h6 g5 d4 g7 f4 Kg6 h5 e5 f3 b7 f2 e7 h4 e8B b3 e6 b2 e7 h3 b6 h2 Be2 f1Q Na3+ Kc3 Ba4 b1B Nc4 d2 Nd6 d3 Nf3 Nc6 b8B Na5 b7 Qe1 Bc7 Nc4 b8B Nb6 Nb7 Be6 Nh4 Nf6 g8B Bd5 Bh7 Bh6 Bb2+ Kc4 Qc1 d1Q Qd2 Bg7 Rf1 h1B Bf4 Ra5 Bbc7 Na8 c3 Ra6 Ba5 Rd6 Qc2 Qdd2 Bd1 Qe6 Rf2 Qed7 Rh2 Qc1 Rd2 Re6 Kf7 Q8c8 g6 Rd8 Bh2 Bh6 g7 Re2+ Kg6 Be3 Bf4 Bf2 Kh6 Ba2 Qb1 Qc2 Qa1 Bb1 Qa2+ Qb3 Rc2 d2 Kg6 Kd3 c4 Re6 c5 Be1 c6 Re2 c7 Qc3 Rc1 Qe8+ Kh6+ Qf5 c8Q Rd6 Qc6 Rd8 Be5 Ke3 Bec7 Kf2 Bf4 Kf1 Rc2 Qc5 Rc4 Qfd7 Rd4 Qc3 Bg8 Ne4 Kh7 Nf6+ Kh8 Qf5 Bdc2 d1Q Bcb3 Qdd3 Bd1 Qb5 Rd2 Rd6 Rd4 Qfd7 Rd2 Qh5+ Bh7 Qc8+ Bd8 Bg8 Qc7 Qbe8 Qc6 Rd7 Ba5 Qcd8 Rd6 Qc7 Re6 Rdd2 Rd6 Qcc8 Rd8 Q8h3 Ba3 Qhd7 Bb2 Bgd5+
1BB1n1N1/1n1N2b1/1b5P/Bb4q1/3bR1qb/r3qP2/bkN3N1/1N1B1QK1 w - - 0 1 illegal: No possible last move, all moves rejected
1RRb4/N2qnk2/2bn1b2/7P/bQ2Q3/2Bn2Qq/2PQ1r2/2bKNQQn w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 c5 a4 cxd4 f4 h5 e4 b5 axb5 Rh7 e5 Ra7 f6 Ra6 Bh3 Rh8 Bg4 hxg4 f5 Qc7 Nf3 Kd8 f7 Rf6 exf6 Qb6 Qe2 Kc7 Ng1 Kd6 Qd1 Qd8 h4 e5 b4 g5 h5 a4 b6 d3 b5 d2+ Ke2 e4 b7 e3 b6 a3 Rh4 g3 Rf4 a2 Ra4 g2 Re4 g4 Re8 g3 Qe1 d1B+ Kd3 e2 Kd2 Nc6 Re7 Ne5 Re8 Bh6+ Kc3 Nc4 f8Q+ Ne7 Qf2 e1N f7 Bf3 f6 Ke6 b8Q d5 b7 Bd7 Qd2 Ba4 Qa7 Nd6 b8Q Qd7 Na3 Nd3 Rb1 a1B+ Bb2 Bf4 Qh6 Rf8 Qg6 Be4 Nf3 g1Q Qbc7 g2 Ne1 Qh1 Nb5 g1B Rc8 Bb6 Qg3 Bg2 Qc4 Bd8 Qg1 Qh3 Na7 Be4 Qdg2 Bc1 Qd2 Nf2 Qce2 Nh1 Qeg2 Bf3 Kd3 d4 Bc3 Be4+ Ke2 d3+ Kd1 Bec6 Rbb8 Bab2 Qh6 d2 Q2f1 Rh8 f8Q Rg8 Qfg7 Rf8 Q7g4+ Kf7 Qe4 Ba1 Ke2 d1N Qhe3 Nb2 Qd2 Nd3 Kd1 Ke8 Q3e3 Rg8 f7+ Kf8 Q3f4 Rg2 Qg3 Rf2 Bb4 Be5 Ba5 Nd5 Bc3 Ke7 f8Q+ Ke6 Qfh6+ Kf7 Qhf4+ Bef6 Qb4 Ne7 Qf5 Qb7 Qfe4 Qbd7
4rbR1/n6n/B1K1N2k/1nb1b1r1/R3nRPB/R1B1nbB1/2b2PQ1/2B5 w - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f5 axb5 fxe4 Nf3 g4 Ng1 g3 h4 Bd7 Nf3 Bg7 Nh2 gxh2 g4 Bf8 Nc3 Be6 Ne2 Bc8 Ng1 Qd6 Bd3 Qf6 Bf1 Qg5 hxg5 Bd7 Ra6 Bf5 Ra1 Bc8 Ke2 Kf7 Ke3 Kg7 Kd4 a5 Kc5 e5+ d6 h5 d4 h4 b4 a4 b6 a3 b5 e3 d5 e2 g6 e1N b7 e4 b6 a2 Bf4 h3 Rb1 a1B Rb5 e3 Be2 Rh5 Be5+ Kh6 g7 Nf6 g8R Rg5 Bb2 Ng2 Bd3 e2 Rb3 e1B Ba6 Nbd7+ Kb5 c5 b8B c4 b7 c3 Qf3 c2 Ra3 c1N Kc6 Ne2 Bc1 Nc3 Ne2 Nb5 Nd4 Nb6 d7 Ne3 d8R Nh7 d6 Bf5 d7 Nc8 Be5 Bc2 b8B Beb4 Ne6 Bbc5 Bc3 Bb2 Re1 h1B Qg2 h2 Bg3 Rb8 Re8 Ba1 d8B Ra8 B3d2 Be5 Bc3 Rb8 Re7 Ra8 Ra7 Rb8 Qd5 Bf3 Rf7 h1N Rf4 Ra8 Rd1 Rb8 Rdd4 Ra8 Rda4 Rb8 Bh4 Ng3 Bf6 Ne4 Bg3 Nb6 Be7 Re8 Bd8 Nc8 Bf6 Rh5 Bfh4 Rf5 Qc4 Rh5 Qf1 Rg5 Qg2 Nca7+
4r1N1/B2K1P1n/Q6N/2n5/1N1p1q2/1k1bNrQ1/1Nbr1PNq/nR1R2b1 w - - 0 1 legal: proof: e4 c5 g4 b5 a4 f5 axb5 Bb7 exf5 Bc8 d4 cxd4 b4 h5 gxh5 a6 b6 Nf6 b5 Ng4 b7 Nh6 b6 Ng8 Bb5 axb5 Kd2 Kf7 Kd3 e5 Ke4 g5 Kd5 d6 h4 e4 c4 g4 f6 d3 c5 g3 c6 d2 c7 g2 h6 b4 h5 b3 h7 b2 h6 e3 Qe2 d1N Na3 b1B Nc4 Ra3 Nb2 Nd7 Kc6 Ke6 b8Q d5 b7 Ra2 Nf3 g1Q Nh4 Bd6 Ng2 Bh2 Qa6 e2 Ne3 Bd3 Rb1 e1R Bd2 Re2 Bc3 Qe8 Bd4 Qf8 Ba7 Qg2 Rg1 Nc5 Rf1 Ke5 Re1 Bg4 c8N+ Kd4 Ne7 Kc3 Qg3 Ra3 b8N d4+ Kc7 Kb3 Nbc6 Qh3 Nb4 Bg1 Kc6 Qh2 Kd6 Nc3 Red1 Rd2 Kc7 Ne2 Kc6 Ne6 Kd7 Bc2 N7d5 Qb8 Nf4 Nc1 Nfg2 Bgf5 Ra1 Ne7 Rb1 Re8 h8N Qf4 h7 Ng6 Nf7 Bfd3 h8N Nc5+ Kc6 Be2 Nh6 Nf8 f7 Nh7 Ng6 Bed3 Ne7 Kc3 N3f5 N1b3 Neg8 Na1 Nfe3 Kb3 Ned5 Re5 Kc7 Re3+ Kd8 Rf3 Nde3 Ra5 Ke7 Rb5 Kd8 Rb6 Kc8 Re6 Kd8 Re5 Kc7 Re8+ Kc6 Ne6 Kd7 Nc5+
b1B1b2Q/k3n3/4K1Q1/pq1R1qB1/1Bqr2N1/qB1qP3/1B1N1r1P/3n2B1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 g4 hxg4 b4 Na6 e4 Bd7 d4 Bc8 d6 Be7 d5 Bg5 Ra2 Bf4 Rd2 Nb8 Rd4 Be3 fxe3 exd4 Ke2 Kd7 Kd3 f5 Kc4 a5 e5 c5 b6 g5 b5 g3 b7 f4 b6 g2 Nh3 g1Q Ba3 d3 Qc1 g4 Qe1 g3 Bg2 d2 Bb2 d1B Qd2 f3 Qc3 f2 Nd2 f1Q+ Qd3 Na6 b8B Nb4 b7 Qf5 Nf2 Bh5 Ng4 Qgf1 Bh3 g2 Rg1 Qb1 Rd1 g1Q Ba7 Be8 b8B Bb7 e6+ Kc8 e7 Bbc6 d7+ Kb7 Bg3 Rh4 d6 Nd5 Bf2 Qf1 Bg1 Nc3 Bb6 Qc8 d8Q Rb8 Bc7 Ka7 d7 Ba8 Bd6 Qc6 Qc8 Qa1 d8B Qa3 Bg2 Rb7 Bd5 Rd7 Bf7 Rh3 Be6 Rf3 Bd5 Rf2 Be6 Bf7 e8B Ne7 Bd5 Bg6 Bef7 Qb6 Bfe6 Be8 Bb7 Ned5 Bg5 Ne7 Qd8 Qe2 Bc8 Qb8 Ra1 Nd1 Bg8 Ng6 Qf6 Ne7 Qh8 Qf1 Bde5 Qe2 Bec3 Qb6 Bb4 Qd8 Kb5 c4+ Bd5 c3 Kc4 c2 Be6 Nc3 Rd1 c1Q Bd5 Rd6 Kc5 Qdd7 Qc2 Qfd3 Bb3 Rd4 Qb1 Ncd5+ Qc2 Q7f5 Kd6 Qb5 Qe4 Qcc4 Qe6 Qcd3 Qg6 Qf1 Rc1 Qfe2 Rc5 Nc3+ Rd5 Nd1 Bc3 Qff3 Ke6 Qdc4 Ba1 Qed3 Bb2 Qff5+
k2BRn2/2BpB2N/2qP2br/n2BB2Q/4P1bq/4N1r1/1b2B3/1b1b2KQ w - - 0 1 legal: proof: f4 c5 g4 e5 b4 exf4 bxc5 a5 a4 h5 gxh5 b5 Ra3 Qf6 Rb3 Qd8 Rb4 axb4 axb5 Ra3 Bh3 Ra5 Bf1 Ra8 Kf2 f5 d4 g5 c4 g4 e4 b3 h4 b2 b6 f3 b7 f4 c6 Ra1 c7 Ra6 c5 Rb6 h6 Rf6 h7 Nc6 b8B Nge7 h5 Rg8 h8B Bg7 d5 Na5 d6 Rh6 c6 Ng6 Nd2 b1B Nh3 g3+ Kg1 g2 Ng5 Bb2 Nh7 Qh4 Be2 Nf8 Nf1 Rg3 Be5 Ba6 c8B Kd8 Bb7 Bc4 Ne3 Bf7 Rh3 Bg6 c7+ Ke8 Bd5 f2+ Kh2 f1B Kg1 f3 c8Q+ Qd8 Qc6 Qh4 Qc5 Kd8 Bc7+ Kc8 Bd2 Bc2 Bd8+ Kb8 Bef6 Bb1 Bfe7 Nb7 B2a5 Ka8 Bac7 f2+ Kh2 Qf6 Rh4 Qc3 Qb5 Qc6 Rg4 Na5 Rg5 Bf7 Rg8 Bg6 Rh8 Ne6 Re8 Nf8 Bd3 Be2 Qh1 f1B Kg1 Bf3 Qc5 B1e2 Bb5 Bd1 Be2 Bg4 Qb5 Bf7 Qc5 Rf6 h6 Bg6 Qc3 Rf5 Qe5 Rh5 Qf5 Rh2 Qh5 Rhh3 Nf6 Rh2 h7 Rh4 h8B Rh2 Qf5 Rh6 Nh7 Rf3 Be5 Rfh3 Qh5 Rf3 Nf1 Rh3 Kf2 g1Q+ Ke1 Qg2 Ne3 Qg3+ Kf1 Qh4 Kg1 Rg3+
2nN2q1/r1q2R2/4qr1k/1R2PP1n/1b2q1BK/3bN2N/N2p1Qn1/N1N2Q2 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 e5 Be3 e4 Bc1 e3 Bd2 Qa5 Bg2 exd2+ Kf1 Qd8 Bh3 Nc6 Kg2 Rb8 Kg3 Ra8 Bf1 Nb8 Kh3 Ba6 Kg2 Bc8 b4 f5 Ra6 f4 Rf6 Qa5 Rxf4 Qb6 Rf7 Qd8 Kg3 g5 h4 a5 c4 d5 e4 d3 f4 a4 c5 g4 e5 d4 c6 a3 h6 a2 f5 a1Q b6 Qg5 b5 Qf6 h5 Ra5 h7 Qc3 c7 Qe6 b7 Qd5 b6 Be7 h6 Bd6 Nh3 Qe4 Be2 Nd7 b8N Bc5 b7 Ra2 Na6 Nb6 b8Q Bb4 Kh4 g3+ Bg4 g2 Nc5 g1Q Qf1 d1N Qa7 d2 Nb3 d3 Na1 Ba6 c8N Nf6 Ne7 Rf8 h8N Ne3 h7 d1Q Nhg6 d2 h8N Nh5 Ngf4 Bd3 Ned5 Qdb3 Ne2 Nc8 Nc1 Qc7 Nbc3 Ra6 N3a2 Ng2+ Kg5 Ra4 Qaf2 Ra7 Ne3 Qbd5 Rf6 Qb3 Nf7 Qe6 Nd8 Ke7 Rf7+ Ke8 Rd7 Rf6 Rd5 Kf8 Rb5 Kg7 Rh2 Ngf4 Kh4 Kh6 Rg2 Bd6 Be2 Be7 Rg7 Bb4 Rf7 Qg8 Bg4 Ng2+
1RQNr3/4N2b/1N1RRn1K/1r1P1N2/2b4q/k1BRPN2/pn1nr1q1/1r6 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kd3 Kd7 Ke3 Kd6 d4 f1B h4 a5 b4 c5 b6 g5 b5 f2 h5 a4 h6 a3 b7 a2 f5 g3 b6 c4 f6 c3 h7 g2 f7 c2 f8R g4 Kf4 g3 e3 Bd7 Rh6+ Nf6 Kg5 Ba4 Qg4 Na6 b8N Nb4 b7 Nc6 Nd7 Bb3 b8R Bbc4 Nd2 Ne5 Nb6 Nd3 Ne2 g1Q Re8 g2 Ng3 Nb2 Nf3 Ra5 Bd2 c1R Bc3 Rc2 Rd1 Re2 Rd3 Rb5 Qc8 Qh2 Re5 Re8 h8N g1R Ng6 Qg2 Ne7 Rh1 Rd2 Bd3 Rd1 Bh7 Rd3 Rc2 Re4 Be2 Rg6 Rb1 Kh6 f1N Qa6 Nd2 Ngf5+ Kc7 Re6 Bf1 Nec8 Qe7 d6+ Kc6 d5+ Kc5 d7 Be2 d8N Bf1 Bd4+ Kb4 Bc3+ Kb3 Qb7 Ka3 Rd6 Qe4 Nce7 Qeg4 Qc8 Q4g3 Rd4 Bc4 Rd3 Qh4+ Kg7 Nb3 Re6 Re2 Rd6 Nh5+ Kh6 Nd2 Rge6 Nf6+
b1r2RRr/1KRb4/3Q1q2/RRpB4/5Pn1/nP2b1N1/1kn1R2q/2N1Qb2 w - - 0 1 illegal: No possible last move
1brnRq2/2b3Qq/6pK/R5Bn/3R2PB/2kr1r2/P4Rb1/rR3NRQ w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 h5 b4 f5 exf5 a5 bxa5 b4 g3 h4 d3 b3 Be3 h3 Bg2 hxg2 Nc3 b2 Rc1 b1Q Rc2 Qb2 Na4 Qa1 Nb6 Ra6 Na8 Rxa8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 c5 h4 g6 f4+ Kd6 d4 e5+ f6 e4 a6 c4 h5 c3 f5 Qb6 a7 Qa5 f7 Be6 f6 Bg4 h6 Qc5 h7 Nc6 Ne2 g1R Rb2 c2 Rb1 Rd8 a8R c1B Ra5 Rf1 Rg1 Bh3 g4 Bg2 Ng3 Rf3 Nf1 Bg7 Bd2 e3 f8R e2 f7 e1R Re8 Nf6 f8R Nh5 Bf4+ Be5 Kh6 Qa3 Bg5 Bcf4 Rf5 Rf8 h8Q Q1c3 Qg8 Qc4 Qg7 Rc8 Rf7 Rd3 Qc1 Bg3 Rf2 Nd8 Qd1 Rff3 Bh4 Qc7 Bg5 Qf7 Qc1 Kd7 d6 Qc5 Bh4 Kc6 d7 Bb8 d5+ Kd6 Qd1 Qg8 Bg5 Qb4 Bh4 Qf4+ Bg5 Qff8 Qc1 Ne6 d8B Bh2 Bdf6 Nd8 Bh4 Bf4+ Bfg5 Be5 Qf4 Rec1 Qh2 Bf4 Qh1 Bh2 Ra3 Kc5 d6 Kc4 d7 Bhe5 Ra5 Kc3 Rb7 Ra1 Rb1 Ne6 d8R Bc7 Rd6 Nd8 Rd4 Bb8 Rd2 Bec7 Rf2 Qh7+
1n1B2Bb/R3n1P1/4q2R/rB1k3r/rP1q2qR/b2p4/1BQN4/K1BR2q1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 g4 Qc7 f5 Kf7 Nc3 Qb7 Nce2 Qb6 Nf4 gxf4 Bd3 Bb7 Bf1 Bf3 h3 Ke8 g5 Bg4 hxg4 Qd8 Kd2 Kf7 c4 e5 Kc2 a5 Kb1 d5 b6 h5 b7 e4 c5 d3 c6 d4 c7 d2 c8R a4 Rh4 f3 Rc7+ Ne7 Qc2 d1Q Bb5 f2 Nf3 f1Q Nd2 a3 b3 d3 g6+ Kg8 g7 Kf7 g5 e3 Rc6 e2 Ka2 e1Q g8B+ Ke8 g6 Kd7 f7 Ra5 f6 Qg1 Rb1 Qe6 Ka1 a2 Bb2 Qde2 Rd1 Q2g4 Rc7+ Kd6 b4 Bg7 f8R Kd5 f7 Bc3 Rh3 h4 Re8 Be5 f8B Rh5 Bh6 Bh8 g7 Qd7 Rh1 h3 Rf8 h2 Rf6 Qd6 Bg5 Qdf4 Rh6 Qfd4 Bf6 Nd7 b8B Ra4 Ba7 Nb8 Bb6 Rf5 Ra7 Rg5 Bd8 Rf5 Bc3 Re5 Kb2 a1B+ Kb1 Bb2 Bg5 Ba3 Ka1 Rf5 Bb2 Qge3 Rhf1 h1R Rf4 Qeg1 Re4 Rh5 Rf4 Qe2 Rh4 Qeg4 Nc4 Ke4 Bc1 Rc5 Nd2+ Kd5 Be8 Rca5 Bc6+ Kd6 Bb5 Kd5
1Q1q1r2/1b1Q1QPk/1Q2Q1r1/Rr2Nbpb/1nP2n2/b1q2B1B/1Q1K4/1R6 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 g4 h6 f4 Nc6 f5 Nb8 Bf4 Qa5+ Nd2 Qb6 Ne4 gxf4 g5 Qc7 g6 Qd8 Ng5 hxg5 h4 e5 b4 d5 c4 a5 g7 Kf7 b6 e4 h5 e3 h6 a4 h7 a3 b7 d4 b5 d3 b6 f3 c6 a2 c7 e2 Qc1 f2+ Kd2 e1R Bg2 f1B Nf3 Nc6 b8Q Re5 b7 Nb4 Qb2 Ne7 Bh3 Bg2 Rhb1 Bd7 c8B Ng6 Qa7 Bd6 b8Q Rf8 h8Q Nf4 Qh6 Kg8 Qbb6 Rb5 Ne5 Bb7 Bg2 Bc5 Bf3 Be7 Qb8 Ra6 Q8c7 Be6 Qd7 Bc5 Qg6 Be7 Qge8 Kh7 f7 Bc5 f6 Bf5 Qee6 Bd6 Rc1 Bc5 Rab1 a1Q Rc3 Bd6 Ra3 Qa2 Ra4 Qb3 Ra5 Rh8 f8Q Rg8 Qfe8 Rf8 f7 Be7 Qdc7 Bc5 Qb8 Be7 Ke1 Bc5 Q8d7 d2+ Kf1 d1B Ke1 Bd6 Kd2 Be7 Bh1 Bh5 Bf3 Rh8 f8Q Rg8 Qff7 Rf8 Qe3 Rc6 Qb6 Bc5 Qee8 Rg6 Qee6 Na2 Bd1 Ba3 Bg4 Nb4 Bh3 Bd5 Bb7 Bh1 Bf3 Bg2 Be2 Bb7 Bf3 Qc3+
2R1R1N1/N1rnRP1b/R1n2rR1/1b1Q4/P1N1p3/r4q2/r1k1KN1b/5qB1 w - - 0 1 illegal: No possible last move
1r3rNq/2Rnp1B1/k3nb2/1N4q1/n4NN1/1KPNP3/2Q1Qq2/NqB1b3 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 c5 dxc5 f4 b4 f3 e3 Qc7 Ra3 Qg3 Rd3 Qc7 Rd2 Qd8 g4 h5 Be2 fxe2 f4 Qb6 f5 Nc6 Rd4 Qb8 Kd2 Bb7 Rf4 Qd8 f6 Nb8 Rc4 Be4 Rd4 Bf5 gxf5 Rh7 Re4 Rh8 Rg4 hxg4 Kc3 e1B+ Kb3 g5 h4 a5 c6 d5 h5 d4 c7 Kd7 c8Q+ Kd6 h6 g3 h7 g2 f7 g4 b6 d3 b5 d2 b7 g3 b6 Na6 b8N Qc7 b7 Kc5 f6 Kb5 Qe2+ Kb6 Nh3 d1N Nd2 g1Q Nd7+ Ka7 b8N g2 Nf2 Nb4 Nd3 Nc6 N7e5 Nd8 Nbd7 Qc5 Ng4 Bg7 f8N Nb2 f7 Qf2 Ne6 g1Q f8N Nf6 Nd4 Qg5 Nfe6 Rf8 Nef4 Ne6 h8B Qgf1 Qc5+ Ka6 Nb5 Rab8 Rh4 Q1g1 c3 Qh1 Qa3 Qh3 Qa2 Qhh2 Qb1 Qh1 Qc2 a4+ Ka3 Qhh2 Nb3 Qh1 Kb4 a3 Na1 a2 Kb3 Qa8 Nh6 Qh1 N7e5 Nd7 Ng8 Bf6 Bg7 Qa8 Nfg6 Qh1 Rc4 Qhh5 Rc7 Qh8 Qb1 Qfg2 Ng4 Qf2 Nc2 a1Q Ngf4 Qa5 Na1 Qb6 Nde5 Qb7 Qf5 Qe4 Qh7 Qb1 Qhc2 Qh3 Ned3 Qhh5 Qed1 Qh8 Qde2 Na4+
1r1rqR2/1p3RR1/4R1n1/b1k4b/r1PR2BQ/1n1RN1K1/1P1N1Q1r/1q4b1 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 d4 cxd4 Qd2 Rh6 Qxa5 Rh7 Qb4 Rh8 Bf4 Na6 Bb8 Nxb8 f4 d5 Kf2 Kd7 h4 Kc6 c4 e5 a4 g5 f6 d3 h6 d2 f7 d1Q h7 g4 h5 d4 a5 e4 a6 d3 f5 e3+ Kg3 d2 a7 e2 h6 e1R f6 Qc2 Qb6+ Kd7 Qf2 Kd6 Nh3 d1R Be2 Be6 Nf4 Qe8 Nd2 Qd7 Rh4 Qb1 Ra6+ Nc6 Ng2 Rh1 Ne3 Qe8 Bf3 Rb8 a8R Rh2 Rb6 Re1 Ra3 Ne7 Rd3+ Kc5 Be2 Rg8 h8R Nd4 Rh7 Ng6 Rg7 Nb3 h7 Be7 f8R Bf7 h8Q Bd8 Re6 Ba5 Rh3 Rc1 Rd4 Rc3 Qh4 Rd3 Rde4 Rdd8 Rd4 Rh8 Rfg8 Rh5 Rh7 Rhd5 Rgg7 R5d6 Bf3 Rb6 Be2 Rb4 Bd1 Ra4 Bf3 Nf4 Be2 Bh5 f7 Ng6 f8R Nh8 Rgf7 Ng6 Rhg7 Rh1 Kg2 g3 Bg4 Rh2+ Kf3 g2 Kg3 g1B Nc2 Ne7 Kf4 Qd7 Rhd3 Qc6 Ne3 Ng6+ Kg3 Qe8
2r5/q2NNQ2/1r2N1nP/k1N1QR1n/1p6/2nr1PbK/4BbN1/N1Bn2r1 w - - 0 1 legal: proof: f4 d5 e4 f5 exf5 h5 a4 a5 c4 Be6 b4 axb4 cxd5 Bd7 Ra3 Bb5 Rg3 Be2 Rg4 Bf3 gxf3 hxg4 Kf2 Kd7 Kg2 e5 h4 g5 d4 c5 d6 Kc6 d5+ Kb6 f6 b3 h5 c4 f7 c3 h6 c2 d7 e4 d6 e3 f5 g3 f6 e2 Qd5 e1B Ba3 c1R Ne2 b2 Rh5 g4 Rf5 Bf2 Nd2 b1N Qe5 Rc6 Bc1 Qc7 d8N Nc3 d7 Ne7 Nf4 Nd1 Nb3 Ng6 Be2 Bd6 Nde6 Rc8 d8N Nd7 f8N Qb8 f7 Qa7 Na1 Nf6 Nc5 Nh5 Nf8e6 Ka5 f8Q b5 Qf7 b4 Nc7 Rab8 Nde6 Rbb6 Ncd5 R6c7 Ne7 Rd7 Kh1 g2+ Kh2 g1R Ng2 g3+ Kh3 Bc7 Qe4 Rd3 Qe3 Rbb8 Qe5 Kb6 a5+ Kb5 a6 Rb6 Nf8 Ka5 Nfd7 Qb7 Ne3 g2 a7 Qa6 a8N Qa7 Qb2 Bcg3 Nc7 Re1 N7e6 g1N+ Kg4 Rf1 Ng2 Re1 Qbg7 Rf1 Qe5 Re1 Bf1 Ne2 Kh3 Nec3 Be2 Rg1
k2N1BKr/1N1nq1Pn/1q1r1R2/2R1RQ2/6n1/2PN4/N1p1q1r1/n3NRb1 w - - 0 1 illegal: No possible last move
N1Rn2n1/2R5/Pn2n1Rb/kr2P2R/BN1Nb1R1/3r3p/NQ1n1nnK/8 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 e5 fxe5 g5 g4 Qd6 h4 Qe6 h5 Ra7 Bb2 Ra5 Bd4 Ra3 Be3 Qd6 Bf4 gxf4 g5 Qg6 hxg6 Ra8 Kf2 Kd8 Kg2 f5 a4 b5 d4 c5 e4 Kc7 e6 Kb6 g7 h5 e5 h4 d6 c4 d7 b3 d8N b4 d5 h3+ Kh2 b2 e7 c3 e8N c2 d6 c1N g6 f3 d7 f2 Nc6 f4 d8R f3 Nd2 b1N Na5 b3 Be2 b2 Ne4 Nd2 Bb5 b1N Nc7 Nc3 Ne2 Nc6 Nd4 Nd3 Rf1 Bf5 Qc1 Nc4 Rc8 Ne2 Nc3 Nef4 Qb2 Rb8 Rac1 Be4 Na2 Nd8 Nac6 Nfe6 Ncb4 Ka5 Na8 Nb6 R1c7 Rb7 Rg1 Rh6 Rg5 f1N+ Kh1 Ne3 Kh2 f2 Rh5 Ng2 Bc6 Nf6 g8R Rb8 g7 f1N+ Kg1 Nd2 Kh2 Rh7 Qc2 Nbd5 Qb2 Nf2 Ne2 Rb6 Rh8 Rb8 g8R Rd7 Rg4 Ng8 R8h6 Rb6 Rhg6 Bh6 Nd3 Ka6 a5 Rd6 Be8 Rd7 Ndb4+ Kb5 a6 Ka5 R6g5 Rdd6 Ba4 Rb5 Rgg7 Nb6 R7g6 Rd3 Nd4 Re3 Nc1 Rc3 Nca2 Rd3
2bB3n/3rQb1n/r1p2PN1/3PR3/2NBp1Bq/7q/NK2bn2/3BNk1B w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Nd7 h4 Ngf6 b4 Rg8 f5 Kf7 Ra3 Bh6 Rf3 Nb8 Rf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Rh8 Qb3 Ng8 Qc2 Nh6 Qd1 Ng8 d4 Kd7 Kd2 Kd6 Kc3 e5 b6 h5 g7 a5 b5 c6 g6 f3 b7 a4 b6 e3 Bb2 e2 Bh3 e1N Qe2 f2 Nf3 f1B Na3 h4 Bg4 Ne7 g8B h3 g7 Nd3 Ne1 Nd7 b8N h2 b7 Rh7 Na6 Ng6 b8N Nh8 Nb4 Qh4 f6 Ra6 Na2 Nf8 Nd7 Nf2 Rg1 h1B Nc4+ Kc7 Rg2 a3 d6+ Kb7 Rg3 Bd5 Re3 Bf7 Re4 Ka7 Qe3 Be2 Kb3 Bh5 Bd5 Bf7 g8B Rg7 Bc3 Nh7 Nf8 Qh3 d7 Qh4 Nc1 a2 d8B a1Q Ng6 Qa3+ Kc2 Kb7 Na2 Ka7 Ba1 Qd3+ Kb2 Kb7 Qd2 Qdh3 Qe3 Ka7 Rf4 Kb7 Bh1 e4 Rf5 Bfe6 d5 Rd7 Qc5 Bf7 Qd6 Ra8 Rg5 Ka6 Qe7 Kb5 Re5 Ra6 Bh5 Bd3 Bd1 Be2 Qe6 Kc5 Qe8 Kd4 Qe7 Be8 Be6 Bf7 Na3 Ke3 Bf5 Ng4 Nc4+ Kf2 Be6 Kg1 Bf5 Nf2 Bg4 Qf3 Kb1 Qa3 Bd4 Qah3 Kb2 Kf1
2bbK2k/1QQ2n1p/1Q3rB1/1qP2b2/2rp1PNQ/1Nq1R2n/6Qq/3QR3 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 b5 exf5 Na6 Ba3 Bh6 axb5 Bf8 b6 Nb8 b5 Ba6 Bc5 Bc8 Bb4 axb4 Kd2 Kf7 Kd3 Kg7 Ke4 d5+ Ke5 e6 g4 b3 c4 b2 f4 d3 b7 d4 b6 d2 f6+ Kf7 g6+ Ke8 f7+ Ke7 g5 Nh6 g7 Ra2 g8Q Ra6 g6 Ra4 c5 Qe8 g7 Qb5 Ra3 Rc4 Bd3 Na6 b8Q Nb4 Bg6 Nd3+ Ke4 Kf6 b7 e5 Kd5 e4 Qc7 e3 b8Q e2 Nh3 e1Q Nf2 Nf5 Qbb7 Be7 Qgd8 Nh6 f8Q+ Nf7 g8Q Qg1 Qh6 Qh2 Qa4 d1B Re1 Bdg4 Nd2 b1Q Qd1 Qa1 Nb3 Bgf5 Qhh5 Qc3 Qhg4 Qbb4 Kc6 Qa5 Qcb6 Qa6 Qdc7 Bd8 Qg2 Qaa5 Qe8 Kg7 Qee7 Rf8 Ng4 Nf2 Qg5 Kh8 Qh4 Nh6 Kd6 Nh3 Kc6 Bg5 Kd6 Rf6+ Ke7 Nf7 Ke8 Qa6 Ra2 Qaa5 Rae2 Qab4 Re3 Qb5+ Qb7c6 Rd6 Qcb7 Bd8 Qcd7 Rc6 Qdc7 Rf6+
1B1qb3/Kr2pQN1/R7/N1NB1r1P/p4nr1/qq1P1QN1/k1n1N1b1/N7 w - - 0 1 legal: proof: f4 d5 e4 g5 exd5 b5 g4 b4 c3 b3 axb3 h6 b4 Bg7 b5 Be5 b4 Bd4 cxd4 gxf4 g5 h5 Ra3 Ba6 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 h4 Kd6 g6 c5 d3 a5 g7 f5 b6 c4 h5 f3 Ke3 c3 b7 f2 b5 c2 b6 g3 Na3 g2 Qf3 Qe8 Ne2 g1Q Bg2 Bd7 Ng3 Nc6 b8N Na7 b7 Nf6 g8Q Bc6 Qf7 Nd7 Na6 Nf6 b8N Nb5 Nc5 Rg8 Bd2 c1Q Nc2 Bd7 Na1 Qgd1 Nc6 f1R Rg1 a4 Na5 Qa3 Bb4 Kc7 d6+ Kb6 d5 Nd4 Bd2 Bb5 d7 Qd8 d6 Rb8 Bc3 Rg4 Be1 Qe8 d8N Rb7 d7 Qdb3 Nde6 Qd8 Ng7 Bc6 Bf2 Kb5 Bh1 Kb4 Rg2 Qf8 d8N Be8 Nde6 Qh8 Nf4 Nd5+ Kd2 Qf8 Nfe2 Nc2 Bd4 Qh8 Be5 Nf4 Bb8 Qg8 Qf6 Qgd5 Qf7 Qd8 Rf2 Qab2 Rg2 Ka3 Rg1 Ka2 Bg2 Nb4+ Ke3 Rf2 Rc1 Qa3 Rc4 Rf1 Rd4 Rf2 Rd6 Rf1 Kd4 Nc2+ Ke5 Ne6 Ra6 f4 Qe3 Rf2 Bd5 f3 Qef4 Rf1 Qe4 f2 Qef3 Nf4 Ke4 Rh1 Ke5 f1B Ke4 Nb4 Kd4 Rh2 Nce6 Rf2 Kc5 Rd7 Kb5 Bg2 Nc5 Rc7+ Kb6 Rf1 Nab7 Nc2+ Ka7 Nh3 Qe3 Rf5 Qe4 Nf4 Qf3 Rc6 Na5 Rb6 Nce4 Rb5 Nc5 Rb7+
3kb1R1/1p2b1n1/2q5/p3RPP1/nRQ1Nr1R/2rq2BB/KQ3b1R/3q3R w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 g3 hxg3 Nh6 g4 Ng8 g5 Be6 Nh3 Bd7 Ng1 Bc8 a4 Bd7 a5 Bc8 b5 Qd7 b6 Qd8 Na3 Nh6 Nc4 axb6 a6 Ng8 Na5 bxa5 f4 h5 g4 c5 d4 e5 Kd2 c4 Kc2 e4 Kb2 c3+ Ka2 e3 a7 e2 g6 e1B f6 h4 g5 h3 f7+ Ke7 d6+ Kd7 g7 c2 f5 h2 d5 Rh6 Qd4 Bd2 Nh3 Qc7 Qc4 Qc6 Nf2 Bc3 Rb1 Na6 Bh3 Kd8 d7 Nc5 Rb4 Bd2 Ne4 Be1 Bf4 c1Q Bg3 Nf6 g8R Qc3 Rh8 Rb8 a8Q Na4 Qa7 Bf2 Qad4 Qf3 Qb2 Rh4 Rh5 B8c5 f8R+ Ne8 Rfh8 Rf4 Rh4 Be7 R8h6 Qc3 Re6 Qd3 Re5 Kc7 d8R Ng7 Rg8 Bd7 Rgh8 Be8 d6+ Kd8 d7 Rc8 Rb1 Kc7 d8R h1Q Rg8 Qhf3 Rh1 Qdd1 Rd2 Qd3 Re2 Kd8 Rc2 Bd4 Rg2 Bf2 Rgh2 Qb5 Qcb3 Rc3 Qc4 Qc6
3B1b2/3bKR2/5RN1/1r1Q2Q1/B2P2Q1/1QQQppqn/b2P1b2/1nr3kn w - - 0 1 legal: proof: h4 g5 a4 d5 c3 b5 axb5 d4 cxd4 Qd6 Nc3 Qd7 Nb1 Qd8 hxg5 e5 f4 exf4 e4 Nc6 Na3 Nb8 Nc4 Qd6 Ne3 fxe3 Rb1 Qd5 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 c5 g4 a5 b4 h5 b6 f5 g6 a4 g7 a3 b7 f4 b5 h4 b6 a2 g5 h3 g6 h2 Kb5 c4 e5+ Kd5 e6 Ke4 e7 c3 Kc5 c2 Ne2 Kf3 Ng3+ Kf2 Bb5 Bd7 Kd6 Rh5 Ba4 Nh6 g8Q Rb5 g7 Ng4 Qe6 Nc6 g8Q Nb4 b8Q Nd3 Ba3 c1B Qc7 Qb8 b7 Bb2 Re1 h1B Nf5 Bd5 Qg5 Bc3 Qeg8 Ba5 Nh4 Ra7 Rb1 a1N Ng6 Ba2 Q8d5 Nc2 Bb4 Bb6 Ba5 Na3 Rc1 Ra8 Rc6 Nb1 Rh1 Ra6 Rh7 f3 Q1b3 Kg2 Rf7 Nf4 Qd3 Ba7 Rb6 Nh3 Rc6 Kg1 Rb6 Bh6 e8Q Bg7 Qee7 Bf8 Qh4 Ngf2 Qg4+ Kh2 Rc6 Nh1 Bb6 Bh6 Qeg5 Bf8+ Ke5 Raa5 Rcf6 Ra6 Ba5 Rc6 Bb6 Rc1 Ba5 Bh6 Kd6 Qg8 Qc8 Bb8+ Ke7 Bg3 Qcc3 Bf2 Bb6 Qb8 Bd8 Qg3 b8Q Kg1 Qbb7 Bg7 Qdb3 Bh6 Q7d5 Bf8+
N1K1rRq1/k4B2/N7/1pNrP1n1/2r3n1/p2QP2R/1b1R1R1R/1N1b2nn w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 f4 e5 fxe5 Be6 g4 Bc8 b4 axb4 Ba3 bxa3 gxh5 Kd7 Bg2 Ke7 Bf1 Ke8 Kf2 Kd7 Kg3 f5 Kf4 c5 d4 Kc7 h4 Kb6 a5+ Ka7 e3 b5 d6 c4 h6 c3 a6 g6 h5 c2 d7 c1N h7 Bb4 h6 Qf6 d8R Qd6 d5 Nd7 Nh3 Qe6 d6 Nc5 d7 Ne4 Ng5 Bc3 Ra2 Bb2 Bc4 Ngf6 Rh2 Ng4 Qd3 Re8 h8R Qg8 Ne6 Ng5 h7 Bb7 Rf2 Bf3 Nc5 Bd1 Bf7 Rc8 Rd2 Rc6 Rc8 Rd6 d8N Rd7 Nde6 Rd5 Kg3 f4+ Kh4 f3 Nc7 Re7 Rf8 f2 Kg3 f1N+ Kf4 Ng3 Rf2 Re8 Rd2 Kb6 a7 Nh1 a8N+ Ka7 Rf2 Nf3 N7a6 g5+ Ke4 Ne2 Kf5 Neg1 Rd2 Ngf2 Kf6 g4 Kf5 g3 Kf6 Rb8 Ke7 g2 Ke6 Ng4 Rf2 Bc3 Rad2 Bb2 Ke7 Rd4 Ke6 Rc4 Kd7 Rd8+ Kc7 Rd5 Kc8 Ng5 Rd8 Qg6 Rhf8 Qg8 h8R Ne2 Rc2 g1R Rh3 Rg2 Rd6 Ng1 Rdh6 Rg3 Rcd2 Rf3 R6h5 Rf6 Rhh2 Re6 R5h3 Re8+
r7/1k4Np/4Rb1P/1NnR1nBP/Q3q1KR/bp2R3/NN1n2n1/2r2qR1 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 Be6 b4 axb4 a3 Bd7 Bc4 Bc8 Ba2 b3 g4 bxa2 h3 Ra7 h4 Ra8 h5 Bd7 h6 Be6 Rh4 Bf7 Rh1 Bh5 gxh5 Ra4 Qb3 Ra7 Qd1 Ra8 Ke2 Kd7 Kf3 Kc8 d4 g5 f6 e5 a4 c5 f7 b5 a5 c4 a6 e4+ Kg4 b4 f4 c3 a7 e3 d6 c2 d5 e2 d7+ Kb7 d6 e1Q f5 Ka6 f6 Qc7 d8R Kb7 d7 Ka6 Nf3 Qb7 Nc3 Qf1 Rh4 Ne7 Nd4 Nf5 Re8 Qe4+ Bf4 c1N d8R Nb3 Rd5 Be7 f8N Kb7 f7 Nd2 Nfe6 Na6 f8R Nc5 Qa4 b3 Ng7 Bf6 Rd1 a1B Re6 Bb2 Na2 Ba3 Rfe8 Rf8 Re1 Rf7 Nb5 Rc7 Nbc3 Rcc8 Nd1 Rc7 Nb2 Rc6 Re2 Rc7 Rg2 Rc6 Kh3 g4+ Kh2 g3+ Kh3 Qb4 Rdd6 Na6 Rd5 Rac8 a8N Rc1 Re1 Nc5 Kg4 Qe4 Re6 Rg8 Nc7 Ra8 Rg1 g2 Rgh1 g1N Nb5 Ngf3 Re3 Ne1 Rg1 Qed3 Bg5 Ng2 Re2 Qc2 R2e3 Qe4+
K1q3Q1/1B1Pn2B/N1p4N/N6r/1P2RNn1/1b2BB1p/1qkb2q1/1N1n3b w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 b4 e5 c4 d5 cxd5 e4 h4 Bb7 f4 gxf4 g5 Ba6 h5 Bc8 Ra3 Ra6 Rf3 Rg6 hxg6 exf3 Kf2 Kd7 d4 Kd6 e4 h5 g7 f5 b6 h4 g6 h3 b7 a4 e5+ Ke7 e6 Kd6 e7 c6 e8B a3 Qb3 a2 Be3 a1Q Ba6 Ne7 g8B Qc7 g7 Nd7 b8N Qb2+ Ne2 Ne5 Re1 Be6 Bb7 Rh5 Bh7 Bf7 g8N Bh6 Na6 Ng4+ Kf1 Bg5 Nh6 f2 Qa2 Be6 Bf7 Kd7 d6 Bb3 Be8+ Ke6 d7 Kd5 d8N Ke4 d5 Kd3 d6 Kc2 d7 Ne5 Nec3 Ng4 Ke2 f1B+ Kf3 Bd3 Nd5 Be4+ Ke2 Bh1 Beg6 Nf6 Kf2 f3 Nf4 Ng4+ Kg3 Ba4 Qg8 f2 Bf7 f1Q Bd5 Bb3 Bf3 Bc4 Bb6 Bb3 Re4 Bf6 Be3 Bc3 Ndf7 Bd2 Ne5 Nf2 Nc4 Nd1 Na5 Qe2 Re5 Qf1 Ne2 Qg2+ Kf4 Qd8 Re4 Qc8 Nbc3 Qd8 Ke5 f4+ Kd6 Qb6 Bg4 f3 Nf4 f2 Nb1 f1N Bf3 Qa7 Kc7 Nh2 Be2 Qb6+ Kb8 Ng4 Bf3 Qc7+ Ka8 Qc8+
2K3B1/1Bpq3n/P3rQb1/B4BPB/rN1bBqQ1/5qp1/1kr2b1R/7R w - - 0 1 illegal: No proof kernel
B1b5/BQ2r1N1/3n1Nb1/N2p1nb1/N5P1/1nKRnk2/PB2n1qp/3B1N2 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 Nc6 b4 axb4 f6 Nb8 f5 Ra7 Qd3 Ra6 Qd1 Ra8 Nd2 Ra3 Rb1 Ra5 Rb3 Ra6 Rf3 Ra8 Rf4 gxf4 g4 Ra3 g5 Rg3 hxg3 b6 g4 b5 c4 Kf7 c6 e5 c7 h5 c5 f3 c6 h4 Bb2 b3 Ba3 f2+ Ke2 e4 Ngf3 h3 Qa1 b4 Nh2 e3 Kd3 e2 Bb2 e1N+ Kd4 Bh6 Qb1 Na6 Be2 f1N Nc4 Ng3 Nf1 h2 Na5 Ng2 Bd1 Ne2+ Kd3 Ne7 g6+ Kg8 g7 Kf7 g8N Nc5+ Kc4 Ne4 Kd3 d5 Rg1 Ne3 Rg3 Bg5 Rf3 Bd7 c8B Nd6 c7 Qe8 Bb7 Rh7 c8N Rg7 Nb6 Bc8 Ba8 Qf8 Ba1 b2 Na4 b3 Rh3 Rh7 Rf3 Qh6 Rg3 Qh3 Rf3 Ke8 f7+ Kd7 f8B Qg2 f6 Ke6 f7 Ke5 Nf6 N7f5 Be7 Rg7 f8N Rf7 Rg3 Kf4 Bd8 Re7 Bb6 Ng1 Ba7 Ne2 Qc2 b1N Qc7 b2 Qb7 Nd2 Ne6+ Ke5 Ng7 Kf4 Rh3 Nb3 Rg3 Ned4 Kc3 b1B Bb2 Ne2+ Kb4 Nh6 Rh3 Bg6 Rg3 Nhf5 Rh3 Nec4 Rd3 Nce3 Nd2 Ned4 Kc3 Kg3 Nf1+ Kf4 Bc2 Kf3 Bd1+ Ne2+
1B3N1B/4n1R1/Qn2QP1k/BB2Rnbq/1b3nK1/4pp2/P1qB3r/B4b2 w - - 0 1 illegal: No proof kernel
Q2KNk1b/r2R2qP/1R1n4/1P2n3/4pp2/Nbn3NR/n3R1N1/q1B2Rb1 w - - 0 1 legal: proof: f4 a5 c4 b5 a4 g5 axb5 d5 cxd5 h6 d4 Bd7 g4 Ra6 e4 Bc8 e5 Kd7 d6 Ke6 Be2 gxf4 d7 h5 g5 Kf5 d5 Rd6 exd6 Kg6 Bg4 hxg4 Kf2 Kg7 b4 e5 h4 f5 g6 c5 h5 c4 b6 c3 b5 c2 b7 e4 h6+ Kf6 g7 Kf7 h7 a4 Ne2 a3 Ng3 a2 Na3 f3 Ke3 f2 Kf4 f1N Ke5 Nd2 Rh3 Qg5 d8N+ Ke8 Ne6 Nf6 g8N Bg7 Nf4 Kf8 d7 Nc4+ Ke6 Nc6 b8R N6e5 d6 Nd5 Ng2 f4 Nf6 Nc3 Rb6 Qg6 Rb1 a1Q Qd5 Rg8 Qa8 Bh8 Rb2 Qg7 Ne8 Bb7 d8R Bd5+ Kf5 Bf7 d7 Bd5 Rc8 Bf7 d8R Bd5 Bd2 c1N Rd7 N1a2 Bc1 Bf7 Re2 Bd5 Nh5 g3 Rcd8 Bf7 Rd1 Bd5 Rd7 Bf7 Rf1 Bd5 Ne1 g2 Ng3 g1B Ng2 Bf7 Rg6 Nd6+ Kg5 Nc8 Kf5 Bb3 Rb6 Bc2 Ke6 Ba4 Rdd2 Nd6 Rd4 Bb3+ Rd5 Nef7 Kd7 Ne5+ Kd8 Qg5+ Nf6 Rg7 Rdd2 Qh6 Ne8 Ra7 Rd5 Qg7 Rd3 Nf5 Rd7 Nd6
1r1Q1Qr1/R1nN1rpp/3q2R1/bRR5/b7/rRPk3q/1PN1R1b1/2K3B1 w - - 0 1 illegal: No proof kernel
2k2qN1/n3pb2/2N1NN1p/1B3Pn1/K3BrnR/b3P2Q/1n2qQN1/5q1N w - - 0 1 legal: proof: b4 f5 c4 d5 cxd5 b5 a4 g5 axb5 f4 d3 f3 e3 Bb7 Ra2 Ba6 Re2 fxe2 Kd2 Bc8 h4 a5 g4 Ra7 h5 Ba6 h6 Bb7 f4 Na6 f5 Bc8 Bb2 Rb7 Be5 Rb6 Bf4 gxf4 g5 Rd6 Rh3 Rg6 Rh1 Rg7 hxg7 Qd6 Rh2 Qd7 Rh1 Qd8 Kc3 Kd7 Kb3 e1Q b6 c5 d4 c4+ Ka4 c3 b7 h6 b8Q c2 b5 c1Q d6 f3 d5 f2 b6 Qec3 b7 Q3b2 g6 Nb4 Qe2 Nd3 Na3 Nf6 g8N Nh7 g7 Ng5 Nc2 Qcb1 Bg2 f1N Nh3 Nh2 Be4 Ng4 Nf2 Qf1 Ne1 Qe8 Qf3 Qbe2 Rh4 Rh7 Qh3 Nb2+ Ka3 a4 Ng2 Kd8 d7 Qf7 Kb4 a3 Qbh2 a2 b8N a1N Nh1 Nb3 Qf4 Bb7 Qf2 Na5 Ka3 Kc7 d8N Kc8 d6 Bd5 Ne6 Nc6 Nd7 Na7 Ndf6 Rh8 Nd4 Qe8 Nc6 Bf7 d7+ Kc7 d8N Kc8 Ne6 Qd8 Nd7 Rh7 Ngf6 Rh8 g8B Bg7 Kb3 Qf8 Kb4 Be8 Bf7 Rg8 Bh5 Bf7 Bg6 Rh8 Ng8 Bc3+ Kb3 Bb4 Ndf6 Ba3 Bh5 Ne5 Bhf3 Rh7 Bd3 Rg7 Bb5 Rg6 Rd4 Ng4 Be4 Nh7 Ra4 Rg5 Rc4 Rh5 Ra4 Rh4 Rc4 Ng5 Rd4 Nd1 Ka4 Nb2+ Ka5 Ne5 Bf3 Rg4 Rf4 Rg3 Rh4 Ng4 Bd5 Rf3 Be4 Nd1 Ka4 Rf4 Bd3 Kb7 Bc4 Kc8 Bb5 Nb2+
4BNN1/2prBqp1/3n2PQ/1qK1b2n/k1PBbq1B/8/4b3/NB1bN2R w - - 0 1 legal: proof: b4 b5 d4 a5 g4 f5 a4 fxg4 h4 e5 dxe5 Ra6 Ra2 Rg6 Rb2 Rg5 hxg5 Kf7 axb5 Qf6 b6 Qd8 b5 Ke8 Rb4 axb4 Kd2 d5 Kd3 Kd7 Kd4 h5 e4 g3 f4 b3 c4 g2 f5 b2 f6 h4 f7 h3 g6 h2 b7 Rh3 e6+ Kd6 e5+ Ke7 b6 Na6 b8B Qe8 b7 Nc5 Qh5 Nf6 Qh6 Nh5 Nf3 Ne4 Bd3 Nd6 Na3 b1Q Ba7 Qbb5 b8B g1Q+ Be3 Qe1 Bb1 Qg3 Ne1 Qf3 Bf2 Qf4+ Be4 Rb3 Nac2 Rb2 Na1 Rd2+ Nd3 Rd1 Bc5 Rd2 Bba7 Qed7 Rb1 h1B Bg3 Bf3 Rh1 Be2 Bab6 Bb7 Ba7 Kd8 e7+ Kc8 e8B Be7 f8N Bf6 Ba3 Qf7 Bh4 Ba8 B7c5 Kb7 Bb2 Ka6 Bca3 Bg5 e6 Ka5 e7 Ka4 Bc5 Qd7 Bb4 Bf6+ Kc5 d4 Ne1 Be5 Bb1 d3 B2c3 Be4 Bd4 Q7f5 Bf7 Rd1 e8N d2 Nf6 Qfe6 Be8 Qf7 Ne6 Rc1 Ba3 d1B Nf8 Rc2 Ng8 Rd2 Rh3 Nb5 Rh1 Qdf5 Bdf2 Rd7 Bd4 Nd6 Bc1 Qf3 Bcg5 Qb3 Bf6 Qf4 Be7 Qb5+
1bB2n1B/1pK3bp/1BP5/Q1rR1n2/N1PN2q1/1b2N2B/n2q4/1N3nBk w - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 e3 Ra3 e4 Ra8 f4 g5 a4 f5 exf5 Kf7 f6 Na6 f5 Ke8 Ra2 Nb8 h4 Bg7 g4 Qa5 Ra3 Qc7 Rf3 Nc6 Rf4 gxf4 g5 Bf8 Ke2 Qd8 Ke1 Nb8 Ne2 Ra6 Ng1 Rd6 g6 Rd3 Qh5 Rg3 Qd1 Rg5 hxg5 Qa5 Na3 Qb6 Nb1 Qd8 Ke2 d5 Kd3 Kd7 Kd4 Kc6 Ke5 d4 c4 b3 a5 b2 f7 d3 f6 d2 g7 f3 g6 e6 a6 f2 a7 Bd7 a8N Nh6 g8N Bg7 f8B Nf5 Bh3 f1N Qe1 d1Q Qa5 Qg4 Nf3 Be8 Nb6 Qd2 Be7 Bd7 Nh6 Rc8 Na4 Rc7 Na3 b1N Bd8 Nc3 Nb1 Na2 Rh2 Rc8 Bb6 Be8 Re2 Rc7 Re4 Rc8 Bb2 Rc7 Rf4 Nd7+ Ke4 e5 f7 Nf8 Nd4+ Kd7 Kd5 e4 Rf3 Ke7 Rd3 Kf6 Ba1 Kg5 Bc3 Ne7+ Kd6 Kf4 Nhf5 e3 Bb2 e2 Ne3 Kg3 Bc3 Bh8 g7 Kh2 g8B e1B Bb2 Bf2 Ba1 Nd7 f8B Kh1 Be6 Bg6 Bg7 Nf8 Bc8 Be8 Be5 Bg7 Bh2 Bc6 Bc3 Bf3 Bg1 Bd1 Ba1 Bb3 Bb2 Ne6 Ba1 Rc6+ Kd7 Nf8+ Kd8 Nf5 Bc3 Rd6+ Kc7 Rd5 c6 Rc5 Nb5 Bh6 Bh8 Bg7 Rd5 Bg3+ Kd8 Bb8 Nd4 Ba7 Kc7 Bb8+
1nB1BB1N/1Qbqr3/4P1bQ/2k4b/rp2Rb1p/1K4b1/B1BNb1P1/7B w - - 0 1 illegal: Other
n5B1/3rnK2/pR1n1p2/qRRr1Rr1/1Q3Nn1/2RQPR1r/3P4/1Nbk4 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Ke7 g5 Ke8 g6 Bf8 b3 h6 Ba3 Be6 Be7 Kd7 Bh4 f6 Bg5 Bf7 gxf7 hxg5 Kf2 Kd6 Kf3 Ke5 Kg4 Kd4 Kf5 c5 Kg6 c4 h4 g4 b6 c3 b4 c2 h5 c1N b5 f3 h6 g3 d6 f2 b7 g2 b6 a6 h7 Na2 d7 Ba3 f8Q Bc1 Qc2 Nc3 Ra2 Ne4 Rh3 Nd6 Re3 Ra7 Nh3 g1R+ Bg2 f1N Raa3 Nh2 Rec3 Rf1 Nf4 Ng4 Bd5 Rf3 Rc5 Rh3 Rac3 Qc7 d8R Nd7 b8R Rd3 b7 Nb6 Bf3 Na8 Bd5 Qa5 Bb3 Ke4 e3 Kf3 Ba2 Rd5 Qd3 Kf2 Re8 Ke1 Re5 Kd1 Rf5 Nc4 Kf7 g5 Qd6 Ne7 Qb6 Re8 h8R Nd6+ Ke6 Rg8 Rh3 Rh8 Rf3 Rh3 Qb4 Qb6 Rbc8 Qa5 b8R Rd7 Rb6 Nh6 Qdd4 g4 Rcb5 g3 Qd3 g2 R8c5 g1R Bc4 Ng4 Ba2 Ndc8 Kf7 Nd6+ Kg7 Re5 Bg8 Rd5 Kf8 Rh5 Kg7 Rgh1 Kf8 R1h3 Kg7 Rg5+ Kf8 Nb7 Kf7 Nd6+
N1rrr1B1/5RpR/3Q4/7q/KN2k1r1/2P1prq1/1RRbPR2/NqNb4 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Qd2 e4 Qd3 Nc6 Qd1 Ne5 fxe5 Qb6 Be3 Qf6 Bc1 Qd8 g4 f5 Kd2 h6 Ke1 Ne7 Bg5 hxg5 Ra5 f4 Ra1 Nf5 gxf5 Rh3 Kf2 Rh6 Ke1 Rh8 Kd2 Kf7 b4 a5 h4 d5 f6 Ke6 f7 Kf5 c3 d3 h5 d4 b6 f3 h6 f2 b5 a4 e6 g4 b7 g3 b8R g2 b6 a3 b7 a2 e7 Ra3 e8N Qd5 h7 Rg8 h8R Ra5 R1h2 Qb5 R8h7 Bc5 Nc7 Bd7 Na3 Ra8 Nc2 Rc8 Rc1 a1R Nh3 g1Q Bg2 f1R Nf2 R1a4 f8R+ Ke5 Bh1 Qg3 Rf7 Be7 Na1 Bg5+ Rf4 Be6 Rc2 Bb3 Kc1 d2+ Kb2 d3 Rf7 Rd4 Bg2 Ba4+ Ka3 Bh6 Bh3 Qd5 Be6 Be3 Nh3 Rf3 Nf4 Qa5 Rf2 Rdd8 Qb1 d1R Qb4 Bd2 Bb3 e3 Qd6+ Ke4 Bc4 Ra7 Na8 Qh5 Ba2 Rg1 Bb3 Be1 Bc4 d2 Nd3 d1Q Nc1 Bd2 Kb4 Be8 Be6 Ra5 Kb3 Rb5+ Ka4 Re5+ Kb3 Bd7 Nd3 Rc7 Rf6 Qhg4 Bg8 Be8 Rf7 Qg2 Ka3 Bb5 Ra2 Qb1 Nc1 Bc4 Ka4 Ree8 Rc8 Bd3 b8N Qh5 Na6 Rc5 Rb8 Bc2+ Rb3 Bd1 Rc2 Rcc8 Nb4 Qgh2 Rbb2 Rg4 Rf6 Q2e5 Rf7 Qg3
3bbK2/p3qp1q/3b3N/N1b2PQ1/B1q2PR1/7n/BB1NB2N/1q2k1rB w - - 0 1 illegal: No possible last move, all moves rejected
5N1B/2r1b1nN/1QP2NNP/p5Q1/1r1r1N2/k3bp1R/pq1N3n/n5RK w - - 0 1 legal: proof: f4 e5 g4 h5 d4 c5 Bh3 b5 a3 f5 dxc5 Ba6 fxe5 f4 a4 bxa4 Nc3 Bd3 Nb1 Bf5 gxf5 Be7 Bg4 hxg4 Kf1 Bd6 Ke1 Bf8 Kf2 Ke7 Kg2 g5 e4 d5 b4 a5 h4 g3 c4 a3 h5 d4 c6 a2 h6 d3 b5 d2 e6 Kd6 e7 Kc5 e8N Kb4 c5 g4 c7 Qd5 c8N Qd4 b6 Nd7 f6 Be7 f7 Qf6 f8N Ra6 c6 Ra7 b7 Qb2 e5 Nc5 e6 Nb3 Nh3 Nf6 Qg1 d1R+ Nd2 Ka3 b8Q Nh5 Nf6 Ng7 N6h7 Rc7 Qbb6 Rg8 Rb1 Na1 Rh2 Rh8 Kh1 Rg8 Nb3 Rd4 Nd2 Rb4 Qgc5 Rh8 Qg5 g2+ Kg1 Bd6 e7 Rd4 e8N Be7 Nef6 Rg8 Kf2 g1B+ Kg2 g3 Kh1 Rb4 Nfe4 Be3 Nef6 f3 Nf4 Rh8 N8d7 Rd8 Ndf8 Rdd4 Rh3 g2+ Kh2 g1N Kh1 Bd6 Ne7 Ne2 Neg6 Ng3+ Kh2 Nf1+ Kh1 Nb3 Ra1 Nh2 Rb1 Ka4 Ra1 Be7 Rb1 Qc2 Bb2 Na1 Bc3 Qb2 Rg1 Rdd7 Ng4 Ka3 Bf6 Nf5 Bh8 Ng7 Ngf6 Rdd4
n2n1R1b/kN5P/q3rpQN/1Rbp4/2R1NR2/2qpBP2/3N4/3nN1rK w - - 0 1 legal: proof: d4 e5 a4 exd4 g4 b5 axb5 h5 b4 c5 bxc5 f6 g5 Ke7 g6 Bb7 Bh3 Bd5 Bg4 Bf7 gxf7 hxg4 Kf1 a5 Kg2 d5 h4 Kd7 e4 Kc8 c4 Kb7 e5 g5 h5 d3 b6 a4 h6 g3 c6+ Ka6 c7 g4 c8N a3 h7 a2 e6 Bh6 f8R Qe7 c5 Qg7 c6 Qd7 c7 Qa4 e7 Bg7 e8N Nc6 b7 Nge7 b8R Nd8 Be3 Rg8 Rh4 Bh8 Ncd6 Nc8 Kh1 Nb6 Nf5 Ka7 Ned6 Qa6 Nh6 Rg7 Nf3 g2+ Kh2 g1B+ Kh1 g3 Rf4 Re7 Ne1 Re6 f3 Bf2 Nb7 g2+ Kh2 g1N Nd2 Ne2 Rc1 a1Q Kh1 Q1a5 Rcc4 Nc3 Qa4 Qb4 Qe8 Nd1 Qg6 Qc3 Nc5 Nc8 Rb5 Nb6 Nce4 Rb8 Rd4 Na8 Rc4+ Rbb6 c8N+ Kb7 Ncd6+ Ka7 Nb7 Bg1 Bd4 Be3 Be5 Bc5 Bd4 Rbc6 Bf2 Rc7 Be3 Rg7 Qh5 Rg4 Qg6 Rg1+
3n1nBB/4RBBP/PRB2N2/Kpb1bb2/p2Bb2q/1Q1Q4/5pb1/r3k3 w - - 0 1 illegal: No proof kernel
1B3N2/1rrBq1N1/rkpP3B/n5p1/6B1/1N1pNN2/r1P1Rb2/qQ4Kn w - - 0 1 legal: proof: g4 b5 b4 g5 f4 h6 fxg5 Bb7 a4 Qc8 g6 Bg7 g5 Nc6 Ra3 Bf8 g7 Qd8 axb5 Bc8 g6 Nb8 e4 d5 d4 e5 Rg3 Be6 Rg5 hxg5 Na3 exd4 Nb1 d3 Nh3 d4 Ng1 Bd5 exd5 Rh4 Ba3 Rh3 Bc1 Rh8 Kf2 Kd7 h4 a5 d6 f5 b6 Kc6 b7 f4 h5 d2 h6 a4 h7 a3 b5+ Kc5 b6 c6 Rh2 d3 Nf3 a2 Kg1 a1Q Bb2 Ra3 Be2 Ra5 Nc3 Na6 b8N Be7 b7 Nh6 g8B Ng4 g7 Nf2 Be6 Ra2 g8N Bf6 Bd7 Bd4 Qb1 Kb6 Ne7 Nc5 Nd1 Nb3 Na6 Nh1+ Ne3 Na5 Nf5 Qe7 b8B Rc8 h8N Rc7 Ng6 Rb7 Nc5 d1R+ Kg2 Rf1 Nb3 Bc5 Bg7 Bd4 Ng4 Bf2 Nf8 Re1 Bd1 Re4 Bh6 Rea4 Ng7 R4a3 Ne1 f3+ Kf1 Bc5 Rd2 f2 Ne3 Bd4 Kg2 f1R B1g4 Rf7 Nf3 Ra4 Re2 Bc5 Nf1 Bf2 Ne3 Qe8 Bde6 Rfc7 Bd7 Qe7 Kh2 Nc4 Kg2 Ra6 Kh2 Na5 Kg2 Bh4 Kg1 Bf2+
5R1n/N2N3b/1p1q2P1/2Qp2b1/KPb1kNN1/1R1N2b1/1RqR1Bp1/1r2r3 w - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b6 a5 Nc6 a6 Na5 g4 g5 f4 Nb7 axb7 h6 Be2 h5 fxg5 Rh6 g6 Rh7 g5 Rh8 Bg4 hxg4 Kd2 a5 b8N d5 b4 e5 c4 Ke7 Kc2 Kd6 Kb3 g3 h4 e4 h5 Ke5 c5 d3 h6 g2 h7 e3 f6 e2 g7 e1B f7 d2 c6 Ra7 g6 Bg4 c7 Bh5 c8N Nh6 g8N Be7 f8R Ke4 Na3 Bg5 Nd7 Bg4 Nh3 Nf7 Nh6 Bg3 Qg1 d1B+ Nc2 Bde2 Qc5 Bc4+ Ka4 Be6 Rb1 Qe7 Rb2 Qd6 Nf4 Rb7 Nb8 Re7 Nd7 Re8 Be3 Re7 Ka3 a4 Ne1 Re8 Na7 Re7 Rd8 Rhe8 Rh4 Nh8 Ng4 Bg8 Ned3 Rf8 Rh1 Rf5 Rd1 Ree5 Nh5 Rf1 Rdd2 Rb1 Bf2 Re7 Nhf4 Re8 Rb3 Re7 Rf8 Re5 Ka2 a3 Rf6 Kf3 Rf7 Ree1 Rf8 Ke4 Ra8 Nf7 h8R Bh7 Rhf8 Nh8 Rac8 Ba6 Rbb2 Bb5 Kb3 a2 Rc7 Bc4+ Ka4 a1Q+ Ra2 Ba6 Qc2 Rbc1 Rc3 Qb2 Rb3 Rb1 Qc5 Qc2 Rb2 Bc4
NRqrBrk1/bN3b2/P4b1b/3R1P1p/pN1q2p1/6R1/1R2Q3/n1RK2N1 w - - 0 1 illegal: No proof kernel
N2N1nB1/4b3/1q6/1Np1k1n1/N1P1P3/pQ1pNn2/R1b3qR/1QN1Kbq1 w - - 0 1 legal: proof: e4 a5 a4 e5 d4 exd4 e5 b5 axb5 Ra6 f3 Rf6 Nh3 Rf5 Ng1 Rf4 g4 f5 Bd2 Re4+ fxe4 f4 Bc3 Ke7 Bb4+ Ke8 Ba3 g5 Bd3 h6 Ne2 Rh7 Bb4 Rf7 Ng1 Rf6 Be7 Rf5 gxf5 g4 Bg5 hxg5 Bc4 Ba3 Bf1 Bf8 h4 Ke7 b4 d5 e6 Kf6 e7 c5 e8N+ Ke5 b6 g3 b7 g4 f6 g2 b5 a4 b6 f3 f7 g3 h5 a3 h6 d3 h7 d4 h8N Bd6 f8N Kf4 Rh2 Qc7 Ne2+ Ke5 Nf6 g1Q Nbc3 g2 Na4 Bh3 Ra2 Qg7 Nd5 Qc7 Ne6 Bf8 Ne3 Be7 Nd8 Nh6 Nc1 Nd7 b8Q Nf7 b7 Ng5 c4 Nf8 Nhf7+ Kf6 Qb3 Qb6 Nd6 d2+ Kd1 f2 Nb5 Qd6 Ke2 d1B+ Kd2 d3 Be2 f1Q Bh5 Bhg4 Bf7 Bge2 Bg8 Qf3 Qb1 Bf1 Ke1 Qa6 Qg3 Qa7 b8N Bc2 Na6 Qb6 Nac7 Qg4 Qf2+ Ke5 Na8 Bb3 Nbc7 Qh1 Qf3 g1N Qe2 Qgg2 Qd2 Bd1 Qdb4 Bc2 Qb5 Ne2 Q5b4 Nd4 Nb5 Qhg1 Q4b3 Ndf3#
2Q1Br1N/B2pr1qR/r2k1qr1/p7/1N5p/1n2q2B/1n1P1PB1/2KN1B1N w - - 0 1 legal: proof: b4 b5 e4 g5 a3 f5 Ne2 fxe4 Ng1 c5 Bb2 Bg7 Bc1 Bc3 bxc5 b4 Qg4 b3 Qd1 Bb4 axb4 Kf8 Na3 Kf7 Nb1 Ke8 h4 Kf7 g4 Ke8 h5 Na6 Rh4 gxh4 Bb5 Qa5 Nh3 Qa4 Nc3 Bb7 Bb2 Kf8 Ke2 Qa2 Qh1 Rd8 Rg1 Kf7 Bc1 Rf8 Nb1 Ra8 Qf3+ Ke8 Rh1 Nb8 Ke1 Qa3 Ng1 Qa5 Qd1 Qd8 Bf1 Bc8 g5 Ba6 g6 Bc4 g7 Bd5 Ke2 Bf7 Ke1 Bg6 hxg6 Qc7 Bd3 Qa5 Bf1 Qd8 c4 e5 b5 Ke7 b6 a5 c6 h5 b7 h3 c7 b2 c8N+ Ke6 c5 h2 c6 e3 c7 e4 Nd6 Ke7 c8B Qc7 Ne2 Ra6 Ng3 Nh6 g8B Ng4 g7 Qc6 Be6 Rf8 g8B Ne5 Bgf7 Nc4 Nc3 b1R Be8 Rbb6 Beh3 Nb2 Nf7 Qf6 Nh8 Kd6 Qc2 Nc6 b8N Nd4 Bb7 Nb3 Nc6 Qg7 Nb4 h4 Nd1 Qf6 Rg1 h1Q Qc8 Qg2 Nh1 Qgg7 Ba8 Rb5 Rg6 Rg5 Rh6 Rg1 Rh7 Rg6 Nc3 Nc4 Kd1 e2+ Kc2 e1R Nd1 e3 Bb2 e2 Bd4 Nb2 Bag2 Nc5 Nc3 Nb3 Be3 Rd1 Bd4 e1Q Ba7 Ra1 Nd1 Qe3 Nc3 Re1 Nd1 Qg3 Kb1 Re7 Kc2 Qe3 Kb1 Nd4 Kc1 Nb3+
Bn2RN1b/8/pK2NQPk/RR1r4/N4nqb/2qr3n/P1b1N3/1rq1RN2 w - - 0 1 legal: proof: f4 c5 g4 g5 b4 e5 bxc5 h6 d4 Be7 dxe5 Bf8 Be3 Ne7 Bf2 Ng8 Bh4 gxf4 g5 Qb6 g6 Qd8 Bg5 hxg5 Kf2 d5 c4 f5 h4 b5 e4 a6 c6 g4 c5 f3 Ke3 b4 Kd4 g3 h5 f4 c7 b3 c6 b2 h6 f2 h7 g2 e6 f3 e5 Bg7 Kc5 Kf8 Qe1 d4 Ne2 g1B Bg2 f1Q Rh5 f2 Kb6 d3 Qc3 Qh4 Nd2 Qe1 Nf1 b1R+ Qb2 Bd7 c8N d2 c7 d1N Be4 Bf6 e7+ Kg7 e8R Qc3 e6 Ba4 e7 Qg4 Ra5 Kh6 Rb5 Ra7 Ba8 Bh4 Ra5 Nf6 Rb5 Rf8 h8R+ Kg7 Ra5 Bc2 Rhh5 Rf7 Rhb5 Nh5 Rb4 Kh6 Rbb5 Qcc4 Qf6 Qc3 Rh8+ Rh7 e8N Nf4 Ng7 Bh2 Rd8 B2g3 Ne6 Rd7 Re8 Rd3 Nf8 Bh2 Ne7 Bg1 c8N Rad7 Nc6 R7d5 Nd8 Bh2 Nfg3 f1Q Nde6 Qh1 Nf1 Nf2 Nh7 N2h3 Nhf8 Rb3 Re1 Rb1 Kb7 Bg1 Nb6 Bd4 Na4 Qhg1 Qd8 Bh8 Qf6 Q1g3 Kb6 Qe3+ N2d4 Qed2 Ne2 Qc1
QbNrk3/QQ1Nnn1p/b1b1P2P/BB6/Rn2nQ1n/Qrr5/q6K/5Q2 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 d5 cxd5 g5 Ra3 g4 Rf3 gxf3 b3 Bf5 b4 Bc8 Kf2 a5 g4 f5 h4 c5 d4 a4 e4 c4 d6 c3 d7+ Kf7 h5 a3 h6 a2 b6 a1R d5 c2 b7 R8a3 g5 Qf6 d8Q Nc6 b8Q Qe7 d6 Ra5 b5 Qe6 b6 Ne5 b7 Qa2 d7 Bd6 Nd2 Ne7 Qb6 Rb1 d8Q Ra3 Rh4 Rbb3 Nc4 Bd7 Q6a7 Bc6 Qda5 Rd8 g6+ Ke8 g7 Nf7 Bd2 c1N e5 Bc7 Qc8 Bb8 e6 Rc3 Nb6 Rab3 Bb5 Nd3+ Kf1 f2 Nf3 Nb4 Kg2 f1N Qa3 Ng3 Qf1 Ne4 Ne5 f3+ Kh2 f4 Ned7 f2 Qc7 f3 Qf4 Ned6 Rg4 Ndf5 Nc8 Nh4 Be1 Be5 b8Q Bd6 Qbb7 Bb8 Qe2 f1B Qg2 Be2 Qf1 f2 Qe5 Nbd5 Ra4 Nb4 Qf4 Bg2 Bc6 Ba6 Bb5 Bd5 Nf8+ Bc6 g8Q Bc7 Qh8 Bb8 Nd7+ Ng8 Qhd4 Rc1 Qaa8 Nd3 Qfd6 Ne7 Ba5 Rcc3 Q6f4 Nb4 Qfd3 f1N+ Kh3 Nh8 Qda7 Nd2 Kh2 Nf7 Qf1 Ne4+
1rB2KQB/2B1q1r1/b4N2/2r3n1/2N3pb/nbq2PP1/1N1rr1k1/NR2B1N1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 b4 h5 g3 h4 f3 h3 Ra6 Qc7 Re6 Qb6 Re2 Qd8 Rg2 hxg2 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 h4 g5 c4 d5 f6 a4 f7 g4 h5 a3 h6 d3 h7 d2 b6 d4 b7 a2 b5 a1Q b6 d3 Rh3 Nf6 Nc3 Rg8 h8B Nc6 b8N Na5 b7 Rg7 Rh1 Nh7 Na4 Qc3 Qb3 d1R Na6 d2 Nb4 Rb8 Nb2 Ng5 Nc2 Qd7 Na1 e6+ Kb6 Kd4 c5 Ke3 c6 Kf2 c7 e5 Ba6 Be7 f8N e4 Nh7 e3 Nf6 e2 Qg8 Qd8 Kb5 Nc4 Kc6 Qf8 Kd5 e1R Kc6 Na3+ Kd5 Bf5 c8N Re2 Nb6 Bd3 N6c4 Bd8 Kc6 Qe7 Kd5 Rde1 Kc6 d1B Bd2 Bb3 Kd5 Rd1 Be1+ Kf1 Kc6 Rdd2 Kd5 Rc8 b8B Rc6 Bb7 Rc8 Bc7 Rb8 Nh3+ g1R Bc8 Kg2 Kc6 Rf1 Ng1 Rff2 Kd5 Re3 Kc6 Rfe2 Kd5 Re5+ Kc6 Qf7 Kd6 Be7+ Kd7 Qe6+ Ke8 Rc5 Nb6 Ba6 N6c4 Bd8+ Kf8 Ne4 Ne8 Bh4 Nf6 Ng5 Nh3 Re7 Bf2 Re4 Rb1 Rg7 Ng1 Ree2 Be1 Qe7#
Q1Nb1R2/Nb3bK1/N1R2rN1/7R/3Rb1P1/p3Bk1N/P1qn2r1/rn3b1q w - - 0 1 legal: proof: d4 h5 f4 g5 b4 gxf4 g3 e5 dxe5 c5 bxc5 h4 Bg2 h3 Kf1 hxg2+ Kf2 Be7 Ke1 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 c4 Kg4 h4 d5 e4+ f3 h5 f5 c6 a5 e6 b5 Ke5 d4 e7 f4 e8R d3 c7 a4 c5 d2 h6 a3 c6 b4 h7 b3 Qe1 d1B Rh2 b2 Re6 f2 Nf3 f1R Nbd2 b1B Reh6 g1Q R2h5 Be7 Ng5 f3 Nh3 f2 Nb3 Ra6 Qa5 Bb7 c8N Qd3 c7 Qc2 Be3 Bd8 Na7 Rf6 c8N Qh1 Nc5 Kf3 g4 Ne7 Na6 Nd5 Rg6 Rhf8 h8N Nc3 Rgh6 Rg1 Ng6 f1B Qd5 Rg2 Qc6 Rf5+ Ke6 Rd5 e5 Nd7 Qa4 Nf6 Qe8 Rg8 Kf7 Rf8+ Kg7 Nfe4 e6 Rf6 e7 Nd2 Qa4 Bde2 e8R Bc4 Rf8 Re5 Qe8 Bf7 Qa4 Qb2 Qa5 B1e4 Rd1 Ncb1 Qa4 Rc5 Qc6 Rc1 Qa4 Nb3 Rd4 N3d2 Qe8 Bbd5 Qc6 Qc2 Qa8 Bb7 Ngf4 Rf5 Rc6 Rf6 Ng6 Nc3 Bg5 Ra1 Be3 Ncb1
Kn1q2R1/3Q2nQ/B5p1/1BbB4/2PRr2r/Bbb1qnkB/1Nn3P1/5Bn1 w - - 0 1 illegal: No proof kernel
kB3R1r/r4N2/5nNb/N2pR2b/b4RP1/q1N1K1n1/R1rP1qrR/5Q1n w - - 0 1 illegal: No possible last move, all moves rejected
k7/1p4Rn/2r1K1R1/3r1nBr/bPNP4/1Q2RNbr/1bN1qNb1/3N2bR w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 a4 c4 d5 cxd5 gxh4 Bc4 Bh6 Bb3 axb3 Qe2 Bg7 Qd1 Bf8 Ke2 Kd7 Kf3 c5 Kf4 Kc7 Ke5 h5 f4 h3 g4 b2 a4 h2 g5 h4 f6 e6 f7 h3 a5 c4 g6 c3 g7 c2 a6 Nf6 g8N Qe7 f5 Rh6 a7 Nh7 f6 Bd7 Nf3 Ba4 Nc3 b1R Ra3 Rb3 d6+ Kb6 d7 Nc6+ Kf4 e5+ Kf5 e4 d8R e3 Rd7 Rb8 a8N+ Ka7 Nb6 e2 Nc4 e1B d3 Rc8 Bg5 Rh5 Nh6 c1B Ng4 Bb2 Nf2 Qe2 Qb1 Ka8 Ncd1 Bd6 f8N Bc5 f7 Be3 Ke6 Ne7 Qc2 Nf5 Re7 Rc3 Qb3 Rc7 d4 Rc8 Ng6 Rc5 Nge5 Rd5 Neg4 Rc1 Nd6 Rc4 f8R+ Rc8 Rf6 Rc6 Nd3 Bg3 Rg7 Bef2+ Nge3 Bg1 Rfg6 B1f2 Re1 Bg1 N3f2 h1B Ra1 h2 Rb1 Qf1 Nc2 Bg2 Re3 h1R Rc1 Qe2 Ra1 Rcc5 Nc4 R1h3 Nc3 B1h2 Rh1 Bg1 Ncd1 Rc6+
Qn2b3/1pb3B1/2rP2Q1/1PQRKQ2/N5B1/qN2nQrb/nQ3q1k/5n1b w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 gxh4 c4 f5 exf5 Ra6 cxd5 Kf7 b5 Ke8 Ra2 Ra7 Rb2 Ra8 Rb4 axb4 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 g4 e5 f6 h5 f7 c5 a5 h3 d4+ Kh4 f4 Kg3 d6 b3 d7 h2 d5 h4 a6 h3 a7 c4 f5 b2 g5 c3 f6 c2 g6 Ne7 g7 Rg8 Bd2 c1N Bc3 Na2 Nf3 Qa5 d8Q Nf5 Nfd2 Bd6 f8Q Bc7 f7 Qa3 Nb3 Ne3 Be2 Bd7 d6 Be8 Qc8 Kg2 Rf1 h1B Qc2 h2 Rf5 Kg3+ Bf3 Bg2 Bd4 h1B Nc3 b1N Qb2 Bh3 Na4 Bd8 Qc5 Bc7 Qbc1 Kh2 Qb2+ Nc2 Kd5 e4 Bg4 e3+ Ke5 e2 Rh5 Ne3 Rg5 Rh8 g8Q Nd2 Qg6 e1Q Bc3 Rg8 Rh5 Bd7 Qc8 Qe2 f8Q Ndf1 Qf3 Be8 Qcf5 Qf2 Rg5 Na6 Bd4 Rc8 a8Q Rg7 Ke6 Rg8 Bg7 Nb8 Kf6 Bd8+ Ke5 Rc6 Rh5 Bc7 Ke6 Qc2 Qf5d5 Nc3 Bd4 Rf8 Qf4+ Kg1 Bg7 Na2 Qd1 Qf2 Rd5 Rf6+ Ke5 Rf7 Qfe4 Rf3 Qef5 Rg3 Qdf3 Kh2
3K3Q/pRqbr2n/P1kB2N1/R1qRR1pN/b5qr/2b3n1/nR5P/1R1Q4 w - - 0 1 illegal: No possible last move, all moves rejected
2BQ3n/bp1B1n1b/2N1RK1n/1B3b1N/BN1qqr1k/pNBrP3/P7/q7 w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 hxg4 Nd2 f4 Rb1 Qf6 Rb3 Qd8 Rg3 fxg3 h4 Kf7 f4 Kg6 c4 Kh5 e6 a5 c6 d5 c7 g5 e3 a4 Ke2 d4 Kd3 g2 Ke4 d3 Ke5 a3 f5 Qd7 f6 Rh6 e7 Qc6 c5 Ra4 f7 Bf5 e8B Rd6 c8B Rf4 Bb2 Nh6 Ngf3 g1N Nb3 d2 Bb5 g3 Bcd7 g4 Nfd4 g2 Bc3 Nh3 Nc2 g1Q Nb4 Ng5 Ba4 Qb6 c6 Qg2 c7 Rd3 c8B Nc6+ Kf6 Bc5 f8N+ Ngf7 Ne6 Qe4 Ned4 Ne7+ Ndc6 Ng6 Rf1 Qa7 Rf3 g3 Bb5 Kg4 h5 g2 Ba4 Kh4 Rg3 Ne7 Rg6 g1Q Bb5 Nh8 Ba4 N6f7 h6 Qb6 h7 Qd8 Bb5 Ba7 Ba4 Nh6 Bb5 N8f7 h8N Qb6 Qc2 d1B Qd2 Bc2 Ba4 Rd5 Bb5 Qc5 Qd4 Qc4 Qb6 Qcd3 Qd8 Qa1 Ba4 Qdd1 Nca5 Bh3+ Bf5 Rf3 Rg5 Qf4 Beb5 Ng6 Nac6 Qd2 Kg7 Be4 Bfd7 Qg2 Re5+ Qf6+ Kh7 Rd3 Re7 Qd4 Re6+ Rf6 Kg7 Ng5 Nf7 Nh8 Nd6 Bh7 Ne4 Ngf7+ Ng3 Qge4 Nh5 Bg4 Kf8 Bh3 Ke7 Rf4 Qf8 Ne5 Qd8 B3f5 Kf6 Nef7+
r1Q1n1nR/k2b1RbN/P2QQq1b/7p/Q1Q1QpB1/1Kn5/q2N1P2/4r2r w - - 0 1 legal: proof: d4 a5 c4 d5 b4 axb4 h4 g5 hxg5 e5 Bb2 Ne7 cxd5 Ra7 d6 Ng8 d5 Ra8 Bd4 exd4 Kd2 Kd7 Kc2 b5 e4 c5 g4 f5 a4 f4 e5 c4 a5 h6 g6 c3 g5 d3+ Kb3 c2 e6+ Ke8 g7 c1B g6 d2 e7 Kd7 Nf3 Bb2 Ng5 Na6 Nh7 Nc7 Be2 Ne8 a6 Qb6 Ra5 Qd4 Qe1 d1R Nd2 Qf6 Bf3 Be5 Qe4 Re1 Rh3 Bb7 Rh4 Kc8 d7+ Kb8 d8Q+ Bc8 d6 Ka7 Bg4 Bd7 Qc8 Bc3 Ra1 Bb2 Rc1 Ba1 Rc5 Bc3 Rf5 Ba1 Ka2 b3+ Ka3 b2 Kb3 b1N Rh2 Qe5 Rf7 b4 Rh5 Nc3 Qcc4 Bc6 d7 Qf6 d8Q Bb2 Qd6 Bd7 Qce6 Ba1 Kc4 b3 Kb4 b2 Kb3 Nc7 e8Q b1Q+ Ka3 Bc8 Q8a4 Bd7 Rh3 Bb2+ Kb3 Ne8 Q6c4 Qa1 Rh5 Ne7 g8Q Bg7 Qf8 Ng8 Qfe7 Ba3 Q7e6 Bc5 Qdd5 Bcf8 Qdd6 Rc1 Rc5 h5 Rc8 Rh1 Rd8 Bh6 g7 Ne7 g8Q Nc7 Qe6d5 Bfg7 Qe8 Rf8 Qee5 Rh8 Rc8 Rf8 Qd8 Re8 Qg2 Ng6 Qed5 Ree1 Qge4 Ne7 Q5e6 N7b5 Qda5 Nc7 Rh8 Ne8 Qd8 Ng8 Qdc8 Qa2+
R1Bb2Br/1PBp3B/qn5N/1pNq1Qn1/1q1N3r/k1n4b/3P2r1/2N1N1K1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 b4 c6 b6 Ba6 b5 Bg7 Ra5 Bc8 b7 Bh6 b6 Bf8 Rb5 cxb5 f4 e5 Kf2 Ke7 g4 Kd6 c4 Kc5 f6 Kb4 f7 h5 f5 a5 f6 e4 c5 h3 g5 h4 c6 a4 c7 a3 g6 h2 g7 h3 Bd3 a2 Qc2 a1Q Nf3 Ne7 g8B Na6 b8N Nc5 Ne1 Na4 Bb2 Bb7 c8B Nd5 Be5 Qe7 Nc3 Ka3 Na2 Qb4 Bc7 Be7 f8N Nac3 f7 Bd8 Ng6 e3+ Kf1 Bc6 f8N e2+ Kf2 Ra4 b7 Nb6 Na6 Bg2 Ne6 Bf1 Rg1 h1Q Nd4 h2 Ne5 Qd5 Nf7 h1R Nc1 R1h4 Nc5 Bh3 Bdh7 Rg4 Qf5 Rg3 Nef3 e1N Nh6 Rg2+ Kf1 Nd3 Rh1 Nf4 Ne1 Ne6 Rg1 Ng5 Rh1 Bg4 Rh4 Bh3 Re4 Nc4 Re6 Qa2 Ra6 Nb6 Ra8 Qa5 Nde6 Rh4 Nd4 Qb1 Qe5 Qa6 Qf5 Re2+ Kg1 Qb4 Na4 Rf2 Nc5 Rg2+
4N2B/4Rn1Q/P2b2rR/kp1R1p1q/2rN1P2/1R4r1/2bRr1Rr/1Q1bn2K w - - 0 1 illegal: No possible last move, all moves rejected
1Q1n3b/B3q2q/b2R1nBp/BPKR2rB/7P/kn1r3p/3N1n2/3QB1Bn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 g4 Nc3 Qe7 Ne4 Qg5 Nf2 Qd8 Nfh3 gxh3 Kf2 Kd7 b4 Kd6 d4 c5 e4 a5 g4 f5 b6 h6 b5 f3 Ke3 f2 g5 c4 b7 a4 g6 c3 g7 c2 Be2 f1Q Bd2 c1N Be1 a3 Nf3 a2 Nd2 Rh7 Bh5 Nf6 g8Q Nc6 b8B+ Rc7 Ba7 Nd3 Rg1 Qe7 Rg5 Bg7 Rc1 Bb7 Qb8 a1N Rb1 Ba6 e5+ Kd7 d6 Nf2 d5 Nd8 Kd4 f4 Rc1 f3 Rc6 Qd3+ Kc5 Bh8 Bg6 N2g4 Bh5 f2 Bg6 f1N Bh5 Qg6 e6+ Ke8 Re5 Nf2 Rf5 Rd7 Rb6 Qef7 e7 Ng3 Re5 Qfg7 Rg5 Kf7 e8B+ Kf8 Bf7 Q6h7 Bfg6 Ngh1 Rc6 Qf7 Re5 Qe6 Rf5 Rg7 d7 Ke7 Rg5 Qf7 d6+ Ke6 Rd5 Qe7 Bb1 Rg5 Bbg6 Nf7 d8B Nb3+ Kc4 Kd7 Bdb6 Nd8 Kb4 N2g4 Bg1 Ngf2 Qb6 Rc8 Qb8 Ke6 Rb6 Rc3 Rc6 Rd3 Kc4 Qeg7 d7+ Ke7 Rcd6 Qf8 Rd4 Qff7+ R6d5 Ke6 Kb4 Qe7+ Rd6+ Ke5 Rd5+ Kf4 Rd4+ Ke3 Rd5+ Nd4 Kc5 Nb3+ Kb6 Rd4 Rf5 Kd3 Re5+ Kc3 Red5 Nc1 Kc5 Kb2 Re5 Rd3 Rd5 Nf7 d8B Ka3 Bdb6 Nd8 Ba5 Nb3+
4B1n1/qR2n1R1/1rN1PRQ1/1bq3n1/k2bBb1p/2pKB3/2rR1R1P/3B3b w - - 0 1 illegal: No possible last move, all moves rejected
3NB2B/q5B1/b1B1B1rp/3PR1p1/nbq5/3brkP1/1bn3qK/2Q1B1RQ w - - 0 1 illegal: No possible last move, all moves rejected
3R1rN1/b2Kp2R/1RrP1N1N/2BNPb2/n3RQ2/1Rrn2p1/b4rkq/2q5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Kd7 d4 Kd6 b4 a5 h4 c5 e4 f5 h5 g3+ Kf3 c4 h6 c3 b6 c2 b5 a4 g6 a3 g7 a2 b7 Ra6 h7 Nd7 b8R Rc6 b6 Nc5 b7 Nh6 g8N Na4 Rh5 Nf7 Ne2 Bh6 Be3 c1Q Qf1 Be6 Nd2 Qa5 Rb1 a1R Rb4 Ra3 Nc3 Qb5 Rc4 Qbb2 Rb4 Bg7 Rb6 Be5 Rf8 Bg7 b8R Qa2 Rb3 Bf6 R8b6 Ne5+ Ke2 Nd3 Kf3 Bf7 Rh4 Bg6 Rf7 Kd7 d6 Ke6 d5+ Ke5 d7 Qac2 Ndb1 Qh2 d8R Bg7 d6 Bf6 Nh6 Rf8 h8N Bg7 Nd5 Bf6 Rb2 Rac3 Nd2 Bg5 Bf2 Bf6 Ng8 Bg7 Ke2 f3+ Ke3 Bf6 Bg1 f2 Rfh7 f4+ Kf3 Kd4 Kg4 f3 Nf7 Bg5 R2b3 Be3 Nfh6 Ke5 Qe1 f1B Qf2 Bd4 Qe3 f2 Qf3 Be3 Qf4+ Kd4 Kg5 Bh3 Rg4 f1R Rh4 Rf2 e5+ Kc5 Ne4+ Kd4 Re8 Be6 Rd8 Ndb2 Rg4 Kd3 Rh4 Ke2 Nef6 Kf1 Rg4 Nd3 Rh4 Be8 Rg4 B6f7 Kf5 Kg2 Rh4 Bg6+ Ke6 Bef7+ Kd7 Bc5 R6b5 Ba7 Rb6 Rd2 Bc5 Rb2 Nb4 Bc4 Nbd5 Rf2 Rb1 Ba2 R1b3 Qa3 Qe3 Qb2 Re4 Qc1 Qf4 Bf5+
1b3nNN/2N4K/2BRpq1p/1rR2nq1/kN2P1N1/2nQ1q1P/r1NQ4/1b2n3 w - - 1 2 legal: proof: c4 a5 b4 f5 a4 b5 g4 d5 cxd5 fxg4 Ba3 Nc6 axb5 Ne5 b6 Nc6 b5 Nb8 Bb4 axb4 f4 Kd7 Kf2 g5 Ke3 c5 Ke4 c4 Kf5 h6 Kg6 b3 e4 c3 d4 c2 f5 c1Q h3 e6 f6 b2 f7 g3 b7 g4 b6 g2 d6 Kc6 d7 g3 d5+ Kc5 d6 Kb4 Qd2+ Qc3 Nf3 g1N Ra6 g2 Ne5 Qh4 d8N Qf2 d7 Qf3 Na3 b1N Nc2+ Kb3 Ng4 Ba3 f8N Ne2 Nc6 g1Q d8Q Nc1 Bb5 Nd3 Ne7 Nd7 b8N Bd6 b7 Ne1 Nbc6 Bb8 N6b4 Rh7 Rd6 Ra2 Bc6 Qcf6+ Kh5 Qgg2 Nfg6 Nf8 Nh8 Nc3 Rh2 Qg1 Re2 Qgg3 Re3 Bd7 Red3 Qg1 R3d5 Rg7 Rc5 Rg6 Ned5 Ne7 Nc7 Nf5 Qd3 Qgf1 Qd2 Qb5 Qd3 Ka4 Qd2 Ba7 b8N Be8 Nd7 Bb8 Ne5 Rg8+ Neg6 Bd7 Ne7 Bc8 Na8 Ba6 Qd3 Rg7 Ng8 Rb7 Nc7 Rb6 Bd5 Qa5 Ba8 Bc4 Bc6+ Rb5 Qd2 Ra3 Qd7 Ba2 Qd8 Bb1 Qd3 Qd4 Qg5 Ra2 Qgd2 Nd7 Kg6 Qe5 Ncd5 Qf6+ Kh7 Qad8 Nc7 Qg5 Ba8 Qdf6 Bc6 Nf8#
1R1n2rN/2k2N2/r1b3R1/RqpQn3/R3r3/1PP1p2b/bNB1N2q/2b2K1R w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 e4 Ke7 e6 f6 e5 Ba6 Bf4 Bc8 Bg3 Ke8 e7 Kf7 e6+ Kg7 Be5 fxe5 Qe2 Kg6 Qd1 Kf6 e8N+ Ke7 g4 d5 f4 h5 g5 a5 b6 c5 c3 e4 f5 h3 g6 d4 b7 h2 g7 d3 Qf3 h4 Qh3 a4 Nd6 d2+ Kf2 d1B Nd2 a3 N6c4 a2 Be2 Qb6 f6+ Kd8 e7+ Kc7 e8R Nc6 b8R Ra6 f7 Qb5 Qe3 h3 Qd4 Ne5 Nd6 Ne7 g8R Bb3 Kf1 N7c6 Bd3 Bh6 f8N Nd8 N2c4 Bc1 Rg6 e3 Qd5 Rg8 Nf7 Re6 Bc2 Re7 Rb1 a1R Ne2 Ra6 Ra1 Ba2 b3 Ree6 Nb2 Re7 Rhg1 h1B R1g4 h2 Ra4 Nd7 Ra5 Re4 Re5 Bf3 Rh5 Ne5 Rh4 Bf5 Rhg4 h1Q+ Rg1 Bb1 R1a4 Qh2 Rh1 Ba2 Nd7 Be6 Nh8 Nec6 Ne5 Bh3+ Ke1 Bfg2 Nef7 Bf3 Rd6 Ne5 Rg6 Bd7 Kf1 Bfg4 Qc4 Bc6 Qd5 Bh3+
r7/k3b3/b1r1QpR1/R2N4/1RRnP1p1/r6b/2NRnPN1/rqq1KNB1 w - - 0 1 illegal: No possible last move, all moves rejected
4Q1nk/pR1R3n/2Qq2Rb/N2b2B1/1Rn1r3/1K5P/PR1pq2b/3Br1bR w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 hxg4 Nd2 f4 Ne4 Rh6 Ng3 fxg3 Bd2 Rh5 Bc1 Rh8 Kd2 Kf7 Kc3 g5 e4 Kg7 f4 d5 e6 b5 h3 d4+ Kb3 b4 c4 d3 e7 g2 e8Q g3 f5 g4 f6+ Kh7 f7 Qb6 e5 Qc7 c6 Bc5 f8R Bd6 e6 Bb7 c5 Nd7 e7 Bf4 Nf3 g1B Ne5 g2 Rf6 g3 Nc4 Bh6 Bg5 d2 Qf3 Nf8 Rb1 Bh2 Rb2 g1Q Be2 g2 Bd1 Qe1 Na5 g1B Rg6 Qd6 c7 Qe2 c8R Bc6 Rc7 Bd5+ Kc2 Rb8 c6 b3+ Kc3 Rb4 Rd7 Re4 c7 Bc4 c8R Bd5 Re6 Kg7 Rb8 Rh7 Rdb7 Kh8 Rg6 Rf7 Rd8 Nh7 Rdd7 Rff4 Qg2 Rf1 Rb4 Re1 Rdb7 Rh4 Qe4 Rg4 Qc6 Rh4 e8R Rg4 Rd8 Rf4 Rc2 b2 Qee8 Re4 Rdd7 b1N+ Kb2 Na3 Kc3 Bf7 Rcb2 Nc4 Kb3 Bd5
2B5/1N6/Bkq3r1/1pNPR2N/1PBbp1pb/1QB4q/1q2nrN1/1n1BKb2 w - - 0 1 illegal: No proof kernel
1N2B3/R2p2n1/qQRp2R1/p1N3Nk/N1qn2b1/Pqnr1R2/2P2brK/R7 w - - 0 1 legal: proof: d4 c5 f4 g5 b4 Qa5 d5 Qd8 d6 exd6 bxc5 Qe7 Ba3 Qf6 Bc1 Qd8 fxg5 h6 g6 Ne7 g7 Ng8 g4 Nf6 g5 Ng8 g6 Qf6 Bd2 Qd8 Bg5 hxg5 Kf2 b5 Kg2 a5 h4 f5 e4 b4 a3 f4 h5 g4 h6 g3 h7 b3 e5 b2 c6 Qc7 e6 Qd8 c7 Bb7+ Nf3 Nh6 c8R Nf5 g8N Bh6 g7 Nc6 e7 Kf7 e8N Kg6 Nc7 Qh4 Rh3 Kh5 Be2 Ncd4 Nc3 b1Q Ne7 Qb3 g8R Ng7 Ne6 Bc6 Kh1 g2+ Kh2 g1N Nfg5+ Bf3 Nc6 Bg4 Nb8 f3 Nc5 f2 Qb1 f1Q Bc4 Nge2 N3a4 Nc3 Rc6 Qd3 Bd5 Qa6 Qb2 Ne8 Rg6 Ng7 Bf7 Rf8 Be8 Rf3 h8R Rd3 Nh7 Be3 Rg8 Qbc4 Qb6 Qb3 Ng5 Bf2 Kg2 Be6 Rf3 Qe4 Kh2 Bg4 Bf7 Qed5 Rgc8 Qdc4 R8c7 Ra7 Be8 Rb7 Qa7 Rb5 Qb6 Rb4 Ra7 Rb5 Nce6 Re5 Nec5 Ree3 Rff6 Rg3 Rf3 Rg2+
2N2b2/q1Nq2Kp/2p4r/pB1R1q2/rRRR1n1R/nb5P/1Nn1Pk2/2NQ4 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 Kb2 Kd7 Kc3 Kd6 Kd4 f5 g4 a5 g5 f3 g6 f4 b6 Ba6 b7 Nh6 b4 Bc4 b5 Nf7 b6 Qe7 g7 Ba2 g8N Qe8 Bg2 f1N Ne7 f2 Na3 f3 Nh3 Nh6 Rc1 Ng4 Nf4 Ne5 Nd3 Bb3 Rc4 Na6 b8N Qa4 b7 Rg8 Nc1 Nc5 Na6 Qd7 b8R Ne3 Rbb4 Ncd3 Ke4 Nf4 d4 f1Q Bh3 Qa4 Bd7 f2 Bb5 Nc2 Kf5 Qg1 Kf6 f1Q h3 c6 Nc7 Rd8 Rh2 Rd7 Rg2 Rg4 Rg3 Rh4 Rg4 Rh5 Rh4 Rh6+ Ng6 Be7+ Kg7 Bg5+ Ne7 Rd8 Na6 Qg4 Nc7 Qd7 Nb1 Qa2 Nc3 Qb1 Na4 Qg1 Rc3 Nc4 Nb2 N4a3 Rcc4 Qg2 Na8 Qa7 Nc7 Qg4 Nc8+ Kd7 d6 Be7+ Kf7 Qf5+ Kg7 Qa2 Ne8 Ke6 d5+ Ke5 d7 Qb1 d6 Qa1 Na4 Q1d4 Nc7 Rf8 d8R Rff6 d7 Ke4 Re8 Ke3 d8R Qdd7 Nb2 Kf2 Rf8 Rd6 Rf6 Rd3 Rd6 Rd4 Rd5 Qb6 Rc3 Rf6 Re5 Qd5 Ra4 Rh6 Rc5 Rb4 Rc4 Qde6 Rdd4 Qd7 Red5 Qa7 Rcc5 Rc4 Rb4 Ba2 Rb3 Ra4 Rbb4 Bb3 Rcc4 Bf8+
K4Q2/1p1rnbr1/prB1Q1N1/PPN3Q1/qp4Q1/k4rnQ/b3Q2n/2R4R w - - 1 2 legal: proof: g4 c5 d4 g5 b4 f5 b5 e5 Bd2 Bg7 Bb4 cxb4 dxe5 Bf6 h4 fxg4 Bh3 g3 Bg2 g4 Bf1 Bg5 hxg5 Qc7 Nd2 Qa5 Nb1 Qd8 Kd2 Ke7 Kd3 d5 Kd4 h5 Kc5 d4 f4 g2 c4 g3 a4 a6 e4 d3 a5 d2 g6 h4 e6 h3 g7 h2 f5 Rh6 e5 Rh4 Nf3 g1N Nc3 g2 Na4 Rh5 Rc1 Ne2 Nh4 g1R Bg2 Rh6 Bc6 Nf6 g8Q Ng3 Qdg4 d1R Q8g5 Rd7 Qh3 Qh8 Kb6 Rf1 c5 Rf3 Qg6 Ng4 f6+ Kf8 f7 Ke7 Qg8 Qh7 Qg7 Qc2 Qg5+ Rhf6 Rhf1 h1B Ng6+ Kd8 Rg1 Nh2 Rge1 Bg2 Rh1 Bf1 Qhg4 Bc4 Qh3 Ba2 Qhg4 Rd5 Qh3 Bd7 f8Q+ Be8 Qhg4 Kc8 e7+ Rd7 e6 Qd1 Qfh6 Bf7 e8Q+ Rd8 Qe7 Rd7 Qhh3 Qc2 Qd6 Qb3 e7 Re6 Nb2 Qa4 Nd3 Ref6 Bd5 Nc6 e8Q+ Nd8 Qee4 Nc6 Qe2 Ne7 Qde6 Rb8 Ka7 Kc7 c6 Rg8 Nc5 Rg7 Q6e3 Kd6 c7 Re6 c8Q Ref6 Qf8 Re6 Be4 Ref6 Bf5 Kd5 Kb8 Rb6 Ka8 Ng8 Qee8 Ne7 Be4+ Kd4 Rcg1 Kc3 Bc6 Bad5 Qee6 Kb2 Rc1 Ba2 Qe2+ Ka3 Qc8 Rd1 Qce6 Rd7
1B1R2NB/1p3kn1/BKb1Nbr1/NP2nr2/1r1np2p/2r2Q1B/1q2P3/3N1N2 w - - 1 2 legal: proof: h4 g5 hxg5 f5 g4 Na6 g6 Nb4 g5 Nxa2 b4 d5 c4 Qd6 cxd5 Nc3 Na3 Na2 Rb1 Qd7 Rb3 Qd6 Rg3 Qd8 Rg4 fxg4 d4 h5 Kd2 a5 Kd3 c5 Kc4 e5 Kb5 c4 f4 e4 d6 c3 g7 h4 f5 g3 d7+ Ke7 f6+ Kf7 g6+ Ke6 d5+ Ke5 f7 Kf6 d6 a4 Nb1 c2 Qd3 g2 Bf4 c1N Qf3 a3 Nc3 Be7 f8B Nb3 Nd1 Nh6 g8B Nf5 g7 Ra4 Bc4 Nac1 g8N+ Kg6 Bh2 a2 Bg7 Rh5 Bh8 a1R Bd3 Qf8 d8N Bd7+ Nc6 Kf7 Kb6 Nd4 Ba6 Nd3 b5 Qg7 Na5 Bc6 d7 Rb4 Bb8 Rc1 Rh3 Bf6 d8N+ Ke8 Rh1 Rc3 Ne6 Kf7 Rh3 Ne5 Rg3 Qh7 Rg5 Ng7 Rf5 Nd3 Rd5 Rf5 Rd8 Ne5 Qd3 Be8 Nf3 g1R Nd2 Bc6 Qf3 Rg6 Bh3 Qh6 Nf1 Qc1 Rd6 Qd2 Rd8 Qb2
3nrQ2/1NKp2P1/7N/3RNBNp/rNpP1b1N/kb3n2/4Rn1q/1Qbn4 w - - 0 1 legal: proof: e4 g5 b4 f5 exf5 b5 c4 g4 Ba3 g3 hxg3 a6 g4 bxc4 b5 a5 Bb4 axb4 g5 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 e5 Kf3 Ke7 Ke4 Kd6 f4 Kc5 g4 h5 a4 c3 d4+ Kd6 f6 c5 f7 b3 b6 c2 b7 c1N g6 b2 g5 c4 g7 Na6 b8N Nh6 g8N Nd3 f5 Ra7 a5 Nc7 a6 Rb7 a7 Rb3 a8Q Qe7 f6 Ra3 g6 Ne1 g7 Ng4 Nc3 b1N Nc6 Ra4 Bh3 Ba6 Na5 Nf3 Nb7+ Kc6 Rh2 Bb5 Nh6 Qd6 Nd5 Ne6 Re2 Nd8 Nb4+ Kb6 Kf5 Nc3 Qb1 e4 Qb8 Be7 f8N e3 f7 Nf2 Nh7 Bg5 f8N Qh2 Ng6 Bf4 Nh4 Re8 Ng5 Ncd1 Qd6+ Bc6 Qf8 Kb5 Kf6 Be4 Bf5 Bc2 Ra2 Bb3 Ra3 Ra7 Ra6 Ra8 Rd6 Ka4 Rd5 Ra5 Qg8 Ka3 Qf8 Ne1 N1f3 Ra4 Ne5 Nf3 Rd2 e2 Rb2 e1B Re2 Ne6 Kf7 Bed2 Kf6 Rd8 Ke7 Re8+ Kd6 Nd8 Kc7 Bc1
N1Nk2nr/7p/P5B1/3K1pqq/1p3P2/RNbRq2N/N1rq1n2/2QbRR2 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 axb4 h4 g5 hxg5 e5 Bb2 Ne7 cxd5 Ra7 d6 Ng8 d5 Ra8 Bd4 exd4 Kd2 c5 Kd3 b5 Ke4 f6 g4 d3 a4 d2 f4 b3 a5 b4 d7+ Ke7 g6 c4 d6+ Ke6 g7 c3 a6 c2 g5 c1Q g6 b2 Ra3 Qcc7 Nc3 Qb6 Nh3 Qa7 Qc1 d1Q Na2 Qe7 d8R Qc5 d7 Nh6 g8N Qcd6 g7 Qf7 Ne7 Qc5 g8R Bg7 Rge8 Qfh5 e3 b1Q+ Bd3 Qa5 Rf1 Ng8 Kd4 Qdb3 e4 Q1c2 e5 Nc6+ Ke4 Bb7 Nc8+ Kf7 Re6 Qd2 Bb1 Qg3 Bd3 Qb6 Kd5 Qbe3 Ree8 Qgg5 Re6 Bf8 Ree8 Bc5 Re6 Bd4 Bg6+ Kg7 Ree8 f5 e6 Kf6 e7 Rb8 Nb6 Rc8 Na8 Rc7 Rc8 Qgh6 d8N Ne5+ Nc6 Nd3 Rcd8 Q6g5 Rd7 Nf2 Rdd8 Bc8 Na5 Bd7 Nb3 Rc2 Rc8 Qee1 Rc3 Ba4 Rd3 Ba1 Rd8 Qde3 e8N+ Ke7 Nd6 Q1d2 Re8+ Kd7 Re4 Kd8 Nc8 Bc3 Re6 Qeg3 Re2 Qge3 Ree1 Rb2 Nc5 Bd1 Nb3 Rc2
1Nq1qNN1/qQBBN1pR/2n5/1p3NK1/1N3bPr/q2n4/1Pp2Q2/3kr2r w - - 0 1 legal: proof: f4 d5 g4 h5 a4 e5 c4 exf4 cxd5 b6 a5 h4 a6 Qg5 Ra3 Qd8 Rg3 Bb7 axb7 hxg3 d4 Kd7 Kd2 Kd6 h4 f5 e4 c5 h5 a5 h6 a4 h7 c4 Nf3 a3 Qe2 a2 Qf2 a1R Nh4 g2 Na3 g1Q Nc2 f3 Ke3 c3 Kf4 Nf6 Kg5 f4 Nb4 c2 Bb5 Qc8 Bd7 Nc6 b8N b5 Rh3 Nh5 e5+ Ke7 e6 Kd6 Be3 Re1 e7 Raa1 e8Q Qg3 Qf7 Rh1 Bc1 Qg1 Rh2 Qe1 Bd2 Qee8 Bc3 Rae1 Nf5+ Kc7 d6+ Kb6 d5+ Ka5 Qe3 f2 Be5 f1Q Qf2 f3 Rh4 Qd3 Bf4 Rg8 h8N Qa3 Ng6 Rh8 Nge7 Ka4 Be5 Kb3 Ng8 Nf4 Rh7 Nd3 Qa7 f2 Qb7 f1Q Qf6 Rb1 Bg3 Nf4 Qd4 Re1 Qf2 Rh4 Qg1 Qd3 Be6 Qa6 d7 Qe2 Rh6 Qe3 Qf2 Rhh1 d6+ Nd5+ Bf4 Qea7 Rh2 Qa3 d8N Ne7 d7 Kc4 Bc7 Rh7 N4a6 Kd3 Ndc6 Nf4 d8N Rh8 Bd7 Rh7 Qg1 Rh8 Rh5 Ke2 Ne6 Kd1 Qf2 Nd3 Nab4 Rh7 Ne5 Nc6 Ng6 Bd6 Nef8 Be5 N6e7 Bg3 Rh3 Be5 Rg3 R7h2 Rh3 Bd6 Rh6 Rh4 Rh7 Bf4+
2rb2nK/1pN2q2/2b5/1Pn1Qp1N/R1NB1n2/BbBrp3/1pN2PkB/3B4 w - - 1 2 legal: proof: e4 d5 exd5 g5 d4 a5 a4 c6 h4 gxh4 c4 Bh3 b4 Bd7 c5 Qc7 d6 Bg4 d5 Qd8 b5 Bc8 Ra2 Qb6 Rb2 Qc7 Rb4 axb4 Ba3 Qd8 Bc1 Bh6 d7+ Kf8 Bg5 Kg7 Qf3 Qc7 Bc1 Qd6 Qd1 Kf6 cxd6 Bf8 Kd2 Kf5 Kd3 e5 d8B h5 g4+ Kg6 Ke4 f6 a5 b3 d7 h3 g5 h4 a6 h2 d6 h3 a7 c5 Qh5+ Kg7 Kf5 e4 g6 e3 Bc7 c4 Be2 c3 Na3 c2 Nc4 Rh6 Ba3 c1N Nf3 b2 Bd1 Na6 Ne1 Be7 Nc2 Nd3 Ke6 Bd8 Qe5 Rb8 a8N Nf4+ Kf5 Rh4 Bb6 Kh6 g7 Nc5 Nc7 Ra8 Rg1 h1B Rg4 Kh5 Ba5 h2 Bc3 Bc6 Bd4 Nce6 Bc3 Be7 d8B h1Q d7 Qf3 Bd4 Nc5 Bc3 Bf8 Be7 Qd5 Bd6 Be7 Bd4 Qf7 Bc3 Nce6 d8B B8d7 Bdc5 Rc8 B5d4 Rh1 Rg3+ Kh4 Rg4+ Kh3 Rh4+ Kg2 Rg4+ Kf1 Rh4 Bf8 Bde7 Kg2 Bed6 Nh3 Rf4 Be7 Re4 Bd8 Rf4 Qf8 Kg6 f5 Kh7 Nc5 Kh8 Be6 Re4 Qf7 Rh4 Ne7 g8N Nf4 Nf6 Ng8 Nh5 Rg1 Na5 Bb3 Nc4 Nh3 Qe7 Rh1 Bh2 Nf4 Qe5 Re1 Bg3 Re2 Bh2 Rd2 Nb6 Ncd3 Bdc5 Nd5 Ra4 N5f4 B5d4 Nc5 Nc4 Rd3
3B2R1/rBPp2qR/Q1rP2n1/1p2p3/K1Bp1BR1/1Rq2b2/k1n5/2q1bBN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c6 d4 Nf6 Nc3 Ng8 d5 c5 Nce2 Qb6 Nd4 cxd4 Bd3 Qc7 Bf1 Qd8 Kd2 Kf7 f4 e5 c4 h5 Kc2 b6 Kb3 h4 a4 h3 g4 h2 c5 Ra5 c6 Qe8 f6 Rh5 c7 Qd8 f5 Ra7 g6+ Ke8 f7+ Ke7 f6+ Kd6 g5 Kc5 g7 Bd6 f8B Ne7 g8R Rh4 a5 Rh6 g6 Nbc6 a6 Bb7 g7 Ng6 f7 Qe7 Ka4 b3 Bf4 b2 Ra3 b1Q Qe2 Nb4 Rb3 Qc1 Qd3 Qf6 Be7 Qc3 f8R Nc2 Bd8 Be7 Qe2 Qf7 Re8 Bh4 Qd3 Be1 d6 Rh3 Re6 Bf3 Rf6 Rg3 Rf5 Rg2 Rg5 Rd2 Rg2 Rd1 Rg4 Rc1 Rh8 Qf8 g8B Qg7 Bc4 Qf8 Ne2 Qg7 Rhg1 h1Q Rh7 Rb7 a7 Qhh6 a8B Ra7+ Ba6 Qg5 Qe4 Q5h6 Qb7 Qh1 Qc8 Qhh6 Bb7 Qh1 Rb5+ Kc4 R1g3 Qhh6 Ng1+ Qd3 Bh4 Nb4 Bc6 Qf6 Be3 Ne7 Rg8 Ng6 Bd2 Qfg7 Bd8 Rc3 Rg4 Nc2 Bf4 Qg5 Bh2 Qc1 Bf4 Rb3 Bh4 Kc3 Bf6 Kb2 Bd8 Ka2 Ba8 Rc3 Rb3 Rc6 Qb7 Ba5 Bc4 Be1+ Qa6 Qc3 Bb7 b5+
1rN2R2/R2K1pp1/3qNP1N/N3Bq2/k2p2p1/1r3n1R/q4bP1/1NRQbn2 w - - 0 2 legal: proof: d4 b5 e4 h5 a4 d5 axb5 c5 Be2 Bb7 Bg4 hxg4 Nc3 cxd4 Nb1 d3 Ra4 d4 Ra1 Bd5 exd5 Qc7 Ra5 Qd6 Ra1 Qd8 Kd2 Kd7 f4 a5 b4 e5 h4 a4 c4 a3 d6 a2 b6 Kc6 c5 Kb5 c6 e4 b7 Ra4 f5 Ra5 c7 Rh5 c8N Ra7 f6 Be7 d7 Qc7 d8N Qc6 Ne2 Qd7 Ng3 Qe6 Nf5 Nd7 b8R+ Rb7 Nh6 Qd6 Ne6 Ne5 Ra8 Rb8 Rh3 Rf5 h5 Rf3 Ra7 Bf8 Ba3 Ne7 Bc1 Nd5 Ba3 Kc4 b5 Ne3 b6 Kb5 b7 Rg3 Bb4 Rf3 Ba5 Rg3 Bc7 Nf1+ Kc1 d2+ Kc2 e3 Kb3 Qe7 Bd6 Nf3 Bc7 e2 Be5 Ra8 b8N e1B Nc6 Rb8 Na5 Qd6 Nf5 Bf2 h6 Be7 h7 Bd8 h8R Bb6 Nb7 Ba5 Nh6 Bb4 Na5 Bc3 Qc2 d1Q Rf8 Qd3 Qd1 Qf5 Nd2 N1h2 Rc1 a1Q Nb1 Nf1 Rc7 Ka6+ Kc4 Bce1 Rb7 Qe7 Kd5 Qa2+ Kc6 Qb4 Kc7 Qba3 Kd8 Qd6+ Rd7 Kb5 Ke8 Nh4 Ra7 Rb3 Rg8 Ka4 Rf8 Qc5 Kd8 Nf3 Kd7 Qd6+
b3n3/pNqr2RR/2R4r/N2p1Nb1/1pR3P1/Q1RP1n1k/2Bqp2N/6qK w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 g4 Kf7 f4 Kf6 Kf2 e5 Kg2 d5 c4 h5 c5 e4 b7 e3 b6 Bg7 c6 Na6 b8N Bd7 b7 Rh7 c7 Qe8 c8N Qe7 Nd6 Bf8 Nf3 Bh6 Qc1 Qf8 Bd3 e2 Nc6 Re7 b8R Qd8 Na3 Rg7 Ncd4 Nc5 Rc8 Bc6 Nac4 Nd7 Qa3 Ne5 Na5 Rd7 Rac1 h3+ Kg1 h4 Rc3 Rb8 Bc2 Rb6 d3 Ba8 R8c4 Qc7 Ndb7 h2+ Kg2 Kf7 f6 Kg6 f7 Nf6 f8R Ne8 Rf7 h3+ Kf2 Re6 Rg7+ Kf6 f5 Bc1 Rg1 h1Q Rg3 h2 Rh3 Rb6 Rhh7 Qd1 Kg3 h1Q Nh2 Qhe1+ Kg2 Rbd6 Rc6 Nf3 R6c4 Ke5 f6 Kf4 f7 Rh6 Rc6 Be3 R6c4 Qed2 f8R+ Ke5 Nf5 Bg5 Rf6 Qb1 Rc5 Kf4 Rb6 Qbe1 Rbc6 Qg3+ Kh1 Qf2 Nfd6 Kg3 Nf5+ Kh3 R5c4 Qg1#
2q1Q3/p2pR2r/Q1PK1bR1/3b4/P2R1nR1/3p1kBr/bNp1q2n/R4NR1 w - - 0 1 legal: proof: e4 b5 h4 c5 c4 g5 hxg5 f6 d4 cxd4 c5 f5 Bc4 bxc4 exf5 Bb7 Qe2 Ba6 Qd1 Bc8 Ke2 Kf7 Kf3 h5 Kf4 h4 Ke5 d3 b4 e6 f4 c3 g4 c2 g6+ Ke7 c6 h3 f6+ Ke8 g7 Kf7 g5 Kg6 b5 h2 b6 Bc5 b7 Bd4+ Kd6 Kf5 g6 Ke4 f7 e5 f8Q Qh4 f5 Qh7 f6 Bc3 f7 Bd4 Ne2 Kf3 Na3 e4 Qe8 e3 f8R+ Nf6 g8R Na6 b8R Nb4 g7 Nd5 Rb4 Ba6 Rg1 h1B Ng3+ e2 Bf4 Ng4 Nc4 Nh2 Nb2 Bf6 Rd4 Bc4 Nf1 Bg2 a4 Ba2 Qb1 e1Q Rf7 Qe2 Bg3 Nf4 Re7 Qh3 Qe1 Rh7 Qa5 Qf5 Qb6 Qa5 Qa6 Qd8 Rh8 Rb8 g8R Qc8 Rg6 Rb5 Rf8 Rbh5 Rfg8 Rh3 Rg4 Bh1 R8g6 Bg2 Be1 Bh1 Bc3 Kf2 Bd2 Bhd5 Be1+ Kf3 Bh4 Bg5 Bg3 Bf6
n1r4k/r3Bp2/p1Q2R1p/2p4K/RQ3N2/n2Rn2R/1R1PRNbP/3qb1q1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 g5 e3 g4 Be2 Be7 Bf3 gxf3 Qc2 Bd6 Qd1 Bf8 Kf2 a6 g4 c6 b4 h6 g5 Bc5 b6 Kf8 d6 Kg7 g6 Nf6 d7 Rg8 b5 Qe8 d8R Ra7 b7 Rh8 b6 Ra8 Rd3 Ba3 e4 Bf8 e5 Nbd7 b8R Nh5 b7 Qe6 Qc2 Qe7 e6 Ne5 Nc3 Ra7 Ne4 Nc4 Ne2 Qg5 e7 Nf6 e8R Bd6 Rf1 Nd5 Ra4 Ndb6 Ba3 Bh3 Re5 Bc7 Be7 Rc8 Qc3 Kg8 g7 Na8 Qb4 Kh7 g8R c5 Re6 Qh5 Rg3 Bg2 Rh3 Na3 Re1 Qg4 Rf6 Kh8 Qb6 Qg8 Qc6 Bd6 Nd4 Qg7 Re2 Be5 Ne6 Bd4+ Ke1 f2+ Kd1 f1N Nf2 f3 Nf4 Rf8 Re8 Be5 b8Q Ne3+ Ke1 Bc7 Qb4 Qg6 Rb8 Rc8 Ne4 Qg4 Kf2 Qh5 Kg3 f2 Rb5 f1Q Nf2 Qg1 Rb7 Qf3+ Kh4 Bd8 Qd4 Bc7 Rb2 Be5 Qb4 Bc7 Re1 Qd1 Re2 Bd6 Kh5 Bb8 Nd5 Bg3 Nf4 Bh4 Ne4 Be1 Nf2 Kg7 Re6 Kh7 Rf6 Kh8
5nK1/3NPrb1/p2pq3/p1Q1RqQ1/1p1Q1R1B/N1Q5/b2Pq1n1/Q2Q2rk w - - 0 1 legal: proof: f4 e5 fxe5 h5 b4 b6 a4 h4 b5 h3 a5 Ke7 gxh3 Ke8 h4 Nh6 h5 Ng8 Bg2 bxa5 b6 c6 Bd5 Qf6 Bc4 Qd8 Bb5 cxb5 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 g5 h4 f6 Kg6 Ke4 Kf7 g4 c4 d6 b7 a6 h6 b4 h7 g3 c5 g2 e6 f5 c6 f4 c7 f3 e7 f2 e8Q+ Ne7 h5 f1Q+ Nf3 g1Q h6 Kf4 e4 Kg3 e5 Kg2 e6 Nec6 e7 Bf5 c8Q Qa7 Rh5 Qd7 Na3 Bc2 Bb2 Qe1 Bf6 Qe2 Ne5 Qdg4 Nd7 Nd4 Qc5 Nf3 Re5 Ne1 Bh4 Bg7 Qec8 Rg8 h8Q Bb1 h7 Kh1 Qc3 Qag1 Q8c5 Ng2 Q3d4 Qge1 Qdc3 Nc6 b8Q Nd4 Qbb5 Ne6 Q3d4 Ba2 Rc1 Rgb8 Rc4 Nf8 Kg8 Qf5 Q4a1 Bb1 Rf4 Ba2+ Qd5 Rc8 Qb6 Rc1 Qc5 Bh6 Qf6 Bg7 h8Q Rc8 Qcd4 R8c3 Qh5 Rf3 Qfg5 Rf1 Qf3 Rg1 Qfb3 Rc3 Q5c4 Rf3 Qbc3 Qfd3 Rg4 Rf7 Qcc5 Qb1 Rf4 Qf5 Rd5 Qee6 Re5 Qe2
k2NR3/2pbN2p/1BrQb1r1/2R1pnn1/qRqr2R1/R1P4P/2pN2KN/8 w - - 1 2 legal: proof: a4 d5 f4 g5 c3 gxf4 e3 b5 axb5 d4 Qb3 d3 Qc2 Qd5 Qd1 Qd8 Be2 Be6 Bf3 Kd7 Bd5 Bh3 Bb3 Ke8 Bc2 Bc8 Ne2 dxc2 d4 Bf5 d5 Bg7 Ng1 Bd4 exd4 Bc8 Kf2 Kd7 b4 a5 g4 f5 b6 e5 g5 a4 g6 f3 g7 f4 b7 a3 b5 a2 h3 Qf6 b6 Nc6 b8R Nd8 d6 Kc6 b7 Ra4 d7 Nf7 d8R Be6 Rd5 Ne7 g8N Ng5 Nd2 Qf7 Re8 Nf5 b8R Qd7 Kf1 f2 Kg2 f1R Rb7 Qf7 Ngf3 Rc4 Rb4 Rg1+ Kh2 Rg3 Rg1 Rg4 Kh1 Rh4 Nh2 f3 Rg2 f2 Rg4 f1B Rdb5 Bd3 Kg2 Rh6 Rd5 Rg6 Ra5 Rc5 Ba3 Bb5 d5+ Kb7 d6 Rc4 d7 Rc6 d8N+ Kb8 Ne7 Qg8 Rab1 a1Q R1b3 Qa2 Bc1 Qa4 Ra3 Qf7 Qe2 Rhg8 Qd3 R8g7 Qd6 Qg8 Nc8 Rd7 Ne7 Qf7 Ndf1 Qg8 Be3 Qf7 Ba7+ Ka8 Nd2 Qg8 Qc5 Rd4 Qd6 Bbc4 Rc5 Bd7 Bb6 Qd5+ Kg1 Qe4 Kf2 Bce6 Kf1 Qd3+ Kg2 Qc4
k1K3bb/2Rq3B/4Br1q/1B2rnq1/4NBB1/pR5P/4Ppq1/N4B1B w - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 g5 a4 a5 axb5 c5 d4 a4 dxc5 h6 g4 Nc6 Qd4 Na5 bxa5 h5 Qf4 gxf4 g5 Nf6 Ra3 Ng8 Rg3 Qc7 Rg2 Qd8 Rg4 hxg4 Kd2 d5 Kd3 Kd7 Kd4 Kc7 c4 Kb7 g6 f5 b6 a3 a6+ Kb8 a7+ Kb7 c6+ Ka6 h3 g3 b7 f3 b8R f4 e6 f2 Ke5 d4 c7 d3 c5 d2 g7 d1Q e7 f3 e8B Q1d2 c6 Qe1 Bf4 Qd7 Rb3 Be7 Nd2 Qd1 Ne4 Nh6 g8B Nf5 Bh7 Bf8 Kf6 Qc1 Ke5 Rb8 a8B Ka7 Kf6 Ba6 c8B Bc4 c7 Bg8 Bd5 Rb5 Bcb7 Qc5 c8B Qc1 Be6 Re5 Bc6 Bc5 Bb5 Ka8 Bh5 Bd4 Bb7+ Ka7 Bg4 Qd2 Bg2 f1Q Bbd5 f2 Nf3 Nh6 Ne1 Nf5 Nc2 Qfc1 Bf1 g2 Bdc6 g1Q Na1 Qg2 Rg1 Qh1 Rgg3 Qg2 Rgc3 Qe3 Bcd5 Qeg3 Rc6 Ka8 Rc7+ Qcc6 Bg6 Rh5 Bh7 Rh6+ Bg6 Qh4+ Ng5 Qh2 Bh1 Qh5 Ne4 Qc1 Bg3 Rc5+ Be5 Qg2 Bf7 Qd8+ Ke6 Qcg5 Bf4 Bf6 Bh7 Qd3 Nd6 Bh8+ Kd7 Rf6 Kc8 Re5 Ne4 Qhh6 Be6 Qd7+
B4kr1/r2nN3/2bN1NBR/KN3P2/1N1r3P/N1q2R2/Nb3rp1/1n4nr w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 h6 b3 Kf7 Qf3 Ke8 Ba3 Nd7 Bd6 Nb8 Bf4 Bg7 Qg3 gxf4 g5 Bf8 g6 Na6 Qg4 Nb8 Qg5 hxg5 d4 c5 Kd2 e5 Kc3 a5 b6 g4 b4 e4 g7 f3 b5 g3 d6 e3 d5 e2 b7 e1N b6 f2 d7+ Kf7 d6 c4 Ra3 a4 Kb4 c3 Ne2 c2 Nec3 c1R Nb5 Rh6 Bg2 f1R Rf3 Ra6 N1a3 Qe7 d8N+ Ke8 Nf7 Nd7 b8N Rg6 b7 Rf2 Nc6 Qe3 b8N Ra7 Na6 Rc4+ Ka5 Qc3+ Nb4 Ne7 g8B Bg7 Bh7 Rd4 h3 Rg5 Bg6 Bb7 Rh2 Kf8 Bh1 Qb3 Na2 Nd5 Bg2 Bc6 Bh1 Nc5 d7 Nc3 d8N Nd7 Nfd6 Nb1 f7 Bh8 Ne8 Qc2 Nb7 Qb2 N7d6 Qc3+ Nb4 Be5 Nf6 Rgg4 Bh7 Rg8 Bg6 Nd3 Bg2 Nc1 Bh1 Ne2 Bg2 Qb2 Na2 Ng1 Rh1 Rc7 N6b4 Qc3 Re3 Rb7 Bd5 g2 Rf3 Bf4 Rh2 Bc1 Rh1 Bb2 Be4 Kg7 f8N Rc7 Nd5 Rb7 Nh7 Rc7 Nhf6 Kf8 Ne7 Rb7 h4 Rc7 Rhh3 Rb7 Rhg3 Rc7 Nac4 a3 Rg5 Rb7 Rh5 Rc7 Rh6 Rb7 Nc1 a2 Nca3 a1R Na2 Nd2 Rh7 Re1 Rh6 Nb1 Nfd5 Nh3 Nf6 Rh1 Bd5 Ng1 Nc7 Ba4 Ncb5 Rc7 Ba8 Rb7 Na7 Bc6 N7b5 Ra7+
N1r4b/1n3NBK/r1b2N1N/RnN1p3/1B2Nb2/R3bp2/2P1P1r1/1kqN4 w - - 0 1 legal: proof: d4 b5 a4 d5 axb5 g5 f4 c5 dxc5 d4 fxg5 d3 g4 h5 g6 d2+ Kf2 Qd6 b3 Nh6 g5 Qd8 Bh3 Ng8 Bg4 hxg4 Qe1 dxe1R Ba3 Rc1 Kg3 Kd7 Kf4 Ke6 h4 Kd5 b4 Kc4 b6 a5 g7 f5 c6 g3 b7 g2 g6 a4 Kg5 f4 b5 f3 c7 Ra5 h5 Rf1 h6 Be6 c8N Kd4 h7 Ra8 b6 Qd6 Nh3 g1B Nd2 Kc3 Bb4+ Kb2 Ne4 a3 Nhf2 a2 Rh5 Nc6 b8B Nd4 b7 Nb5 Nb6 Ra6 Na8 Nh6 g8N Nf5 g7 Qd1 Kg6 Qc1 Nh6 Nfd6 g8N Bd7 Ngf6 Bc6 Bc7 e6 b8N Nb7 Nbd7 Bd6 Ndc5 Rc8 h8N Bf4 N8f7 Re1 Kh7 Rd1 Nh1 Bge3 Nhf2 Rg1 Bd6 Rg5 Bf8 Rg2 Bg7 Qe1 Rd1 a1B Rd3 Qc1 Nd1+ Kb1 Ra3 Bc3 Rd5 Bb2 Rdd3 Bbd4 Ra5 Bde5 Nd5 Bf6 Rda3 e5 Bf8 Bh8 Ndf6 Rf2 Bg7 Rg2
1b1r4/3N3B/2qN2n1/B1B1r3/1K2Bn2/1Pn2Bnb/5RPB/kqRqNr2 w - - 0 1 legal: proof: c4 a5 f4 e5 h4 exf4 b3 g5 hxg5 d5 cxd5 a4 Qc2 a3 Qb2 axb2 a4 b5 axb5 Qf6 Kf2 Qd6 Ke1 Qd8 d4 Kd7 Kd2 Kd6 Kc3 f5 e4 h5 g6 c5 b6 f3 g7 c4 b7 f4 Rh2 f2 Kb4 c3 Bd3 f1R Rh4 c2 Na3 b1N Be3 c1Q Nf3 Qc6 Ne1 f3 Rf4 Nf6 g8B h4 Bh7 Nbd7 b8N Nc3 Rc1 Ne5 Nd7 f2 Rf3 Ng6 e5+ Ke7 e6 Kd6 e7 h3 e8B h2 Bf5 h1Q Be4 Ra5 Rf4 Nh5 Nb5+ Ke7 d6+ Ke6 Rf5 Nhf4 Bf3 Be7 Rf8 Bf6 d5+ Kf5 Bf7 Be5 Bc5 Rg8 Nf6 Rh8 d7 Bb8 d6 Ke5 B7d5 Rg8 Bde4 Rh8 Nc7 Qg1 Nce8 Qh1 Ba7 Rc5 Bb6 Kd4 Ba5 Re5 Rf7 Qe7 d8B Bh3 Bdc7 Qed7 Rf8 Qg4 d7 Qg1 d8B Qf5 Bd5 Qb1 Nd6 Qh1 Rf7 Qg1 Be7 Rd8 Nd7 Qh1 Nc2+ Kd3 Bde4+ Kd2 Re1 Qd1 Rf5 Kc1 Rf7 Kb2 Rf5 Qb1 Rc1 Ka2 Ne1 Qg1 Nb7 Ka1 Bc5 Qh1 Rf7 Rg1 Rf5 f1N Nd6 Ng3 Bd1 Nfh5 Rf2 Nhf4 Bdf3 Rde8 Bd8 Rf1 Be7 Rd8 Bh4 Nge2 Bg3 Qg1 Bh2 Ng3 Be2 Qh1 B2f3 Rg1 Nd3 Rd1 Bg4 Qe1 Bh5 Qd2 Bhf3 Rf1 Ne1 Qd1
4B3/r1P2p1B/2rrr1rK/4nB2/2qbP3/R1Bb1N2/1RqRNk2/3B1Bb1 w - - 0 1 illegal: No possible last move, all moves rejected
2n1bk2/1KNRr1R1/1pN5/1r2bp1n/2B5/bbPRR1B1/1qP1N2R/R4r2 w - - 0 1 legal: proof: b4 c5 f4 e5 b5 c4 b6 c3 dxc3 axb6 Bb2 b5 Bc1 b4 fxe5 h5 a4 h4 Qd6 h3 gxh3 Nc6 h4 Nb8 h5 Ne7 Qd5 Ng8 Qa2 Ra6 Qb3 Ra8 Qa3 bxa3 Kd2 d5 Kd3 f5 Kd4 g5 h4 g4 e4 g3 h6 b6 h7 a2 h5 g2 a5 Ne7 a6 Nd7 e6 Rb8 a7 Bh6 a8N Ba6 e5 Bg7 h6 Bc4 Na3 Kf8 Rh2 Rg8 h8R Qc7 h7 Qa7 Nc7 Bf6 Ne2 g1R Nab5 Rb7 Bf4 Bb3 Bg3 Qa3 Na7 Nc8 Nc6 Qb2 Rh3 Bg7 Rh2 Nf6 e7+ Kf7 e8R Nh5 Re7+ Kf8 Rd7 Rh1 Rd1 a1B Rd3 Ra7 Rg2 Ra5 Rh2 Rb5 Rg2 Bh6 e6 Bf4 e7+ Kg7 Rh2 Re8 Rg8+ Kf7 h8R Be5+ Ke3 Rg1 Rh6 Rh1 Rhd6 Rg1 Rd1 d4+ Kd3 Qc1 Rd5 Bb2 Re1 Ba3 Rg7+ Kf6 Rd1 Qb2 Ra1 Rh1 Kd2 d3 Ke3 d2 Rd3 Rg8 e8R d1B Ree7 Rf8 Re8 Rf7 Ree7 Bed6 Re4 Re7 Kd4 Rg1 Ree3 Bf4 Bg2 Rf1 Bd5 Bfd6 Bc4 Bf4 Ng1 Bf3 Ne2 Bd5 Rg2 Bf7 Rf2 Be8 Rh2 Rb4 Kd5 Be5 Nd8 Rb5+ Kc6 Rf3 Kb7 Rf1 Rf7+ Kg6 Nc6 Kh6 Rf6+ Kg7 Rf7+ Kg8 Rg7+ Kf8
6RB/K2Pb1p1/B7/4q1pB/2n1rN1b/R1n2NBb/NP1q1b2/1k2rBB1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 hxg4 axb5 d5 c4 Bd6 cxd5 Bf8 Qc2 f6 Qf5 Be7 Qf4 Bf8 Qg5 fxg5 Kf2 Kf7 Ke3 Kg6 Kd4 Kf5 h4 a5 e4+ Kf4 h5 a4 h6 a3 h7 a2 e6 g3 b6 g2 e5 c6 d6 Bd7 Kc5 Ke4 d4 Ra4 e7 Bg4 e8B Be7 e6 Bh3 d5 Nf6 Bh5 Re8 Nf3 g1B+ Be3 Bf2 b7 Bh4 Bg1 Qd7 Kb6 c5 h8B Nc6 b8B c4 Bc7 Na5 Ka7 Qb5 d7 c3 d8N c2 Bg3 c1B d6 Nd5 d7 Qe2 Nc3+ Kd3 Rh2 Kc2 Rf2 Qd2 Bf7 Bf8 e7 Re4 Ne6 Nc4 Nf4 Re1 Rb1 a1Q+ Na2 Nc3 Bg8 Rc8 e8B Be7 Bh5 Rc5 Re2 Re5 Bd5 Re6 Bb7 Re4 Rf2 Qe2 Ba6 Be3+ Ka8 Bb6 Rd1 Bbc5 Rd3 Qc1 Kb8 Qcd2 Re3 Na4 Ra3 Kb1 Ka8 Nc3 Kb7 Nb6 Ka7 Qb5 Re2 Bf2 Re3 Qe5 Re2 Rb4 Re4 Ra4 Rc4 Rb4 Rc8 Rbe4 Rg8 Nc4+
2B1qB2/K4p2/Rbr2N2/B2r1R1q/1NB1p1Bn/3p1BPp/5PN1/b1b3k1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 d4 d6 d5 Ne7 b5 Be6 dxe6 Ng8 Qd5 Nc6 Qd2 Nb8 c4 b6 e3 d5 c5 bxc5 Qc3 Nc6 Qb4 axb4 e4 d4 Rh5 Nce7 Rh1 Nd5 exd5 Qc8 Ba3 Qb8 Bc1 Qd8 Kd2 Ke7 Kd3 Kd6 Kc4 h5 a4 h4 e7 c6 e8B b3 g3 b2 g6 Rh7 a5 Be7 a6 Rh8 a7 Rc8 a8B Rh5 b6 Rh7 g7 Nh6 g8B Bf6 b7 Nf5 b8N Rh5 Na3 b1Q Bh6 Qd1 Bd7 Qe8 Nc2 h3 Nf3 Bd8 Nfe1 Bb6 Ng2 Nh4 Ra5 Rf5 Rb5 Qh5 Bh7 Rc7 Bg6 e4 Bf8+ Ke5 d6 d3 Bc8 Kf6 d7 Kg5 d8B+ Kg4 Nb4 Kf3 Nd7 Re5 Nf6 Rd5 Ba6 Rc8 Bf5 Rc7 B8b7 Rc8 Kb3 c4+ Ka4 c3 Rc5 c2 Bc4 Rc7 Bbc8 c1B Ra5 c5+ Bfd7 Rc6 Kb5 Rdd6 Ka6 Bb2 Rg1 Rd5 Rh1 Bc7+ Ka7 Ba1 Ra6 Bf4 Ba5 Bc7 Ne3 Bd8 Bg2+ Ke2 Rc1 Bc7 Ba2 c4 Be6 c3 Bc4 c2 Bg4+ Nf3 Rb1 c1B Rb2+ Ke1 Ra2 Nh4 B2f3 Bd8 Ng2+ Kf1 Bb6 Rd4 R2a5 Kg1 Rf5 Rd5 Ba5 Bb6+
2q4k/nB3BR1/n3bb2/p2RRR1r/Pr1Pq1bn/N2R1R1r/6N1/B2K2q1 w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g6 f5 Be6 fxg6 Bf5 g5 Bc8 Qg4 hxg4 h4 f5 d4 b5 c4 e5 a4 a5 g7 Kf7 h5 e3 h6 e2 c6 f4 c5 g3 h7 g2 c7 b4 c6 e4 Rh4 b3 Na3 f3 Bb2 Bg4 c8B Be7 c7 Na6 Rh3 Bf6 Bb7 Qc8 Rd1 Ne7 g8R Nc6 Rf8+ Kg7 g6 Na7 Ba1 b2 Rd3 b1R+ Kd2 e1N Ne2 g1Q Nf4 f2 Rhf3 Rb8 Ng2 Rb5 Kd1 e3 Rd8 Rf5 Rd5 Rh5 Be2 f1B Re5 Rd8 h8R Rd7 Rff5 Nf3 Rd8 Nh4 Rf3 Re7 Rdd5 Kh8 Rff5 Reh7 Rf3 Qe8 c8R Qd8 Rcc5 Qc8 Ref5 R7h6 Rde5 Rh7 Rcd5 R7h6 Bc6 Rb4 Bb7 Rh7 Rc3 R7h6 Bc4 Rh7 Rd3 e2+ Kc1 e1Q+ Kc2 Qe4 Kd1 R7h6 g7+ Kh7 g8R Be2+ Kc2 Bf1 Rg7+ Kh8 Rc5 Be2 Bf7 Bd1+ Kc1 Bb3+ Kd2 Be6 Rb5 Ng6 Rbd5 Rh3 Rh5 Nh4 Rhf5 Qf2+ Kd1 Rh5 Rd6 Qfe3 Rdd5 Qg1+
1rr1RB1B/Br1bp1NB/p4B2/Pn2N3/3Rq3/nrb5/1PB1kb1r/RK6 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 d5 exd5 g6 f5 Ba6 fxg6 Bb7 g5 Bc8 Qg4 hxg4 Kd1 Kd7 Kc2 Kd6 a4 Ke5 d4+ Ke4 h4 c5 d6 f5 d5 g3 a5 g2 d7 c3 g7 c4 h5 f4 d6 f3 h6 a6 h7 f2 g6 Nh6 g8R Nf5 Nd2+ Ke3 Rh4 Nd4+ Kb1 Nbc6 Rf4 Rb8 Ngf3 g1B Ng5 Ne5 Ne6 Nb5 Bd3 f1R Bc2 Rf3 Rd4 Bg7 Re8 Qc7 d8B Ke2 d7 Qb7 Bc7 Qe4 d8B Bf2 Bb6 Bd7 Bdc7 Bf6 g7 Rb7 Ra8 Rhb8 h8B Rh3 g8B Rh2 Ba7 Bg7 Bh7 Bf6 Ka2 Bg7 Bb1 c2 Nf3 c3 Bh6 c1R Bc2 Nc4 Be5 Rd1 Bf6 Rd3 Ne5 Re3 Ba4 c2 Bb3 c1R Bc2 Rc8 Rb8 Rb3 Ra8 Rg1 Rb8 Rgg3 Kb1 Rb4 Bh4 Bf6 Bf8 Rgb3 Ng7 Rc6 Re8 Rc8 Nc6 Be5 Bf6 Rbb8 Rd1 Bc3 Rd5 Nbd6 Rd1 R4b7 Ne5 Nb5 Rd4 Nca3+
2K1RqB1/1P4b1/P2kN3/1rrrbq2/1n1n1n2/1BqB4/Q2NQ1N1/1B1N4 w - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 hxg5 f5 c4 f4 cxd5 f3 b5 Qd7 exf3 Kf7 f4 Ke8 f5 Qd8 Ra3 Ra6 Rb3 Ra8 Rb4 axb4 a5 b6 a6 b3 Ba3 Nh6 Bb4 Ng8 Ba5 bxa5 d3 c5 b6 c4 Rh2 c3 Rh6 Bd7 Rh5 Bb5 Rh1 Bc4 dxc4 Bg7 Qc1 Bh6 Qd1 Bf8 Ke2 Kd7 Kd3 e5 Ke4 h5 g4 b2 f4 c2 b7 c1B f6 h4 Kf5 h3 g6 h2 f7 e4 g5 a4 g7 e3 g6 a3 d6 a2 c5 a1Q Ne2 Qaa5 Nec3 e2 Nd2 e1R Bd3 b1N Qe2 Na3 Nd1 Be7 f8Q Nb1 Qf7 Rg1 Qa2 Rg4 Re1 Nf6 g8B h1Q g7 Nc6 Bb3 Nb4 g8B Qh3 Ke5 Nc3 f5 Nfd5 f6 Rg6 f7 Rc8 f8N+ Kc6 d7 Nf4 Ne6 Bf8 Bb1 Nb5 Bd3 Qe8 d8N+ Kd7 Bb1 Qc3+ Kf5 Qe7 c6+ Kd6 c7 Bb2 Bd3 Bg7 Bb1 Ra8 c8B Rgh6 Bd7 Rc8 Bc6 Be5 Bce4 Rc5 Bed3 Rh1 Nc7 R8h2 Nde6 Rg2 Nd5 Rh5+ Ng5 Rgh2 N5e3 Ba1 Ng2 Nd4+ Kg4 Qf8 Ne6 Rh7 Kg5 Rhc7 Kg4 Rb5 Kg5 Rcc5 Kg4 Nfd5 Kg5 Rh5+ Kg6 Qh6+ Kf7 Nf4 Ke8 Qf6 Rh1 Qa3 Re1 Qf5 Kd8 Bg7 Qf1 Ndc6+ Kc8 Qcc1 Be4 Qab2 Nh4 Qf8+ Nd8 Qbf6 Bed3 Rhd5 Re8 Be5 Ne6 Qf5 Ng2 Qc3 Qe2 Nd4+
b4B1k/3Qqb2/2qN1R1N/6Q1/4q3/r1br1P1P/Q1Q1NRN1/4bKnb w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 g5 e4 d5 exf5 a6 c4 Bg7 cxd5 Kf7 h4 gxh4 b6 Ke8 b7 Bh6 b5 Bf8 b6 h5 Qe2 h3 Qe3 h4 Ra2 h2 Nh3 Nc6 Ra1 Ne5 Qf3 Ng6 Bb5+ axb5 Nf4 h3 Rf1 h1B Ne2 h2 Qb3 Nf4 Qd1 Nh3 gxh3 Qd6 Ra7 Qd7 Ra1 Qd8 Nf4 Kf7 b8Q Kg7 d4 c5 b7 e5 f6+ Kh7 f7 c4 d6 b4 d7 e4 d5 c3 d6 e3 Ra6 b3 Ba3 c2 Qc7 c1Q b8Q e2 Qba7 b2 Nc3 b1Q Ng2 Qg6 Rc6 Qf4 Qc2 Bg7 f8Q Ne7 Qff5 Qe8 d8N Be6 d7 Bd4 Ne3 Nd5 Nb7 Bf7 Qg5 Qf6 Be7 Nf4 Qaa2 Ra3 Bc5 Bhd5 f3 h1B Ng2 Qee4 Rf2 Rd8 Bf8 Qfe7 Rb6 Qgd6 Rc6 Qc5 Rf6 Kh8 Qc6 Rb8 Nd6 Rbb3 Qb5 Ba8 Qb7 Qcc6 d8N Bh5 Qd7 Be8 Ne6 Bf7 Ng7 Be5 Ngf5 Bd4 Ncb5 Rd3 Nh6 Ba1 Nd4 Bb2 Rf1 Bc3+ Kf2 e1B+ Kg1 Qa6 Rf2 Ne2+ Kf1 Ng1 Ne2 Qac6
1bB2NR1/P2R1B2/Bp2RK1B/6nP/8/1nQ1Q1q1/r1rRqr2/bn3k2 w - - 0 1 legal: proof: c4 a5 f4 c5 b4 axb4 e4 f5 exf5 d5 cxd5 g5 fxg5 Nc6 d3 Nb8 g4 c4 g6 c3 Nd2 Bd7 Ndf3 Bb5 Ng5 Bc4 dxc4 Ra6 Nf7 Ra8 g5 h6 Ne5 h5 Ng4 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 b3 h4 b6 a4 e6 a5 g3 d6 b2 d7 b1N g7 g2 g6 c2 a6 Nh6 g8B Qg5 d8R Qg4 h5 Qf3 f6 Qg4 f7 Nc6+ Kf6 e5 g7 e4 Qd2 e3 Nh3 g1Q Ra2 e2 Rd7 e1B Qc3 Na5 Ng5 Nb3 Nh7 Bd6 f8Q Q1g3 Qe8 Qe2 Nf8 Nf7 Bh6 c1R Rd2 Ng5 Bf7 Bb8 g8R Rc2 Rh4 Bf2 Re4 Bd4+ Re5+ Kc6 c5 Kb5 Qe6 Ra7 Qh3 Rh7 Qe3 Ba1 c6+ Kb4 c7 Rg7 Qf4+ Kc3 c8B Ra8 Re6 Rg6+ Ke7 Rf6 Qe4 Rf2 Qf4 Ra7 Kf6 Rc7 a7 Rc5 Bg2 Ra5 Bgb7 Ra4 Ba6 Raa2 R2d5 Nd4 Qf3+ Kd2 Qf4+ Ke1 Qf3 Rh2 Qe3 Nb3+ Rd4 Rg2 Qc3+ Kf1 Rd2 Qh4 Qd3 Qg3 Qe3 Rf2+
2q2QBR/1R2R1R1/K4q2/2P1n2b/2r2r1B/B3P3/N1p3rr/Q1r1rB1k w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 b5 b4 e5 a4 exf4 axb5 Ba6 b6 Bb7 b5 Bc8 c3 Bb4 cxb4 c5 d4 a4 Nd2 c4 Nb3 axb3 Ra4 Na6 Ra1 Nc5 dxc5 Ke7 Rh4 Kf8 Rh1 Ke8 Kd2 Ke7 Kc3 Ke6 g4 Ke5 g6 Ke4 g7 h5 b7 f5 b8Q d5 e3 d4+ Kd2 d3 Kc3 h4 b6 d2 b7 f3 g5 b2 g6 b1R b5 f2 b6 h3 Qb3 d1R Kb4 h2 Kb5 f4 Qa7 c3 b8R c2 b7 f3 Qa4+ Rd4 Qc4 Ne7 g8R Nc6 g7 Ne5 Qb2 Bg4 Qf7 Qc8 Ne2 Rc4 Qf8 Bh5 Ra7 Rh7 Rg1 h1R Ka6 Rh2 Rh1 Rg2 Qa1 Rh8 Bb2 Re1 Nc1 Rh7 Na2 Rc1 Be2 f1Q Ba3 f2 Rg1 Re1 Rh8 Rc1 g8B Rf7 Qc3 Rf4 Qa1 Rh2 Bd3+ Kf3 Rg7 Re1 Re7 Kg2 Be2 Kh1 Bd3 Qg2 Bf1 Qg5 Rg7 Qd7 Re8 Qf6+ Re6 Rd8 b8B Qc8+ Rab7 Rdd1 Bd6 Rc1 Be7 Rg4 Bd8 Rgg2 Be7 Qg6 Bh4 Qf6 Be2 f1R Bd3 Rff4 Bf1 Qf7 Re7 Qf6+
1qNQ1NBk/7p/2Brr3/P2bq3/1b1Q4/b1Q1Pq1r/R3Bb1Q/5BK1 w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 e5 dxc5 f6 g4 Nc6 a4 Bd6 g5 Be7 g6 Nb8 Bg5 fxg5 Ra3 Bd6 Rd3 Bf8 Rd4 exd4 h4 g4 Nh3 g3 Ng1 Nf6 f4 Ne4 f5 Ng5 f6 Bd6 f7+ Ke7 Nf3 Ke6 Ng1 Kd5 Rh3 Nc6 Rh2 Ne5 Rh1 Be7 f8Q Nef7 gxf7 Kc6 Qg8 Nh3 Qf8 g5 Qd3 g4 Qd1 Ng5 hxg5 Ra7 Rh3 Ra6 Rh1 Ra8 c4 b5 a6 d5 a7 Kd7 g6 Ke6 g7 Kf6 g8B g2 Kf2 b4 c6 b3 c7 b2 c5 d3 c6 d2 Nh3 g1B+ Kg2 d4 Na3 b1Q Ng5 g3 Rh2 d3 Nb5 Bf2 Nd6 Qa1 Ne6 Bb7 Nc8 Bb4 Qd6 Qe5 Nf8+ Kg7 a5 Rb8 Qa4 d1R a8B d2 Qd4 Ba3 Qc2 Be1 Kg1 g2 Na7 Qd6 c8B Qb4 c7 Bd5 Bh3 Qb2 c8Q Rb3 Bf5 Rh3 e3 Qb8 Q8c5 Bh4 Bc6 Be7 Nc8 Bd6 Q5c3 Bdb4 Kf2 g1B+ Ke2 Bf2 Bd3 Bb3 Bdb5 Bg3 Kf3 Bf2+ Kg2 Ba2 Bbe2 Bd5+ Qde4 Ra1 Kh1 d1Q Q2d2 Ra2 Qdd4 Rd2 Qg2+ Bg3 Kg1 Rd3 Bh5 Qf3 Qh1 Rd1 Ra2 Bh4 Qh2 Rd2 Ba6 Bf2+ Kf1 Bc5 Ne6+ Kf6 Qa4 Qe4 Bd1 Kg6 f8Q Qf3 Qd8 Be4 Bf7+ Kh6 Bab5 Re8 Bg8 Rd6 Qad4 Bcb4 Nf8 Kg7 Bd3 Ree6 Bc4 Be1+ Kg1 Kh8 Bf1 Bd5 Bde2 Bf2+
Kr5k/3pB3/1B1Q1qb1/1B1Qn1qP/NP1R1bR1/3b4/1pnR2Rb/2B5 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 f5 e4 a4 exf5 a3 Nc3 Ra4 Nxa4 cxd4 Nb2 axb2 a4 b5 Bxb5 Qa5 Bf1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 g5 Kb5 Kg7 h4 e4 f4 e3 c4 d3 a5 d2 c5 e2 a6 e1Q h6+ Kh7 f6 g4 f5 g3 a7 g2 a8R Ne7 h5 Rg8 c6 Ng6 c7 Nc6 Kb6 Na7 f7 Qg5 f6 Nb5 Ne2 Qgg3 Rg1 Qh2 Nc3 Nd4 Ka7 Ne7 Na4 Qeh4 Bb5 Bb7 c8R Ng6 Rc4 Bd6 f8Q Nc2 f7 Bf4 Qd6 Be4 f8B Q2g3 Rd4 Bd3 Be7 Kh8 h7 Ne5 Qf3 d1B Qfd5 B1e2 Rf8 Bf3 Ka8 Qf6 Ra3 Bg6 Rad3 Bfe4 Rd2 Bd3 Rc8 Qgg5 Rd8 Kg7 h8B+ Kh7 Bg7 Re8 Bgf8 Kh8 Rb8 Rc8 Bd8 Rc6 Bb6 Rc7 Rc8 Rb7 Rcc4 Rc7 Be7 Rb7 Re1 g1B Ree2 Bgh2 Rg2 Bfg3 Rg4 Bf4 Rd4 Rb8+
2bqr2N/Kpp1NbQ1/1P6/Q2R1r1R/P1Qr2p1/4k3/1Q1Nb3/B3Nn2 w - - 0 1 legal: proof: d4 a5 e4 d5 b4 f5 exf5 e6 c4 Na6 cxd5 Qe7 d6 Qg5 b5 Qf4 d7+ Kf7 d5 Qh4 d6 Qd8 Qa4 Nb8 Qb4 axb4 g4 g5 f4 Qe7 h4 Bh6 Bg2 Nc6 Be4 Nd4 Bd5 Qd8 f6 Nf5 gxf5 exd5 Nh3 g4 Ng1 Bg5 hxg5 Ra7 Nf3 Ra4 Ng1 Ra8 Kf2 h5 Ke3 h4 Kd4 h3 a4 h2 b6 b3 g6+ Kf8 f7 Kg7 f8N Kh6 f6 b2 f5+ Kh5 f7 Qh4 d8N Rh6 g7 Qg3 f6 Rb8 d7 Qf3 Ng6 Qd1+ Nd2 Kg5 f8Q b1R f7 Rb4+ Ke5 d4 Nc6 d3 d8Q+ Nf6 g8Q Bf5 Bb2 Qc1 Qd4 Be4 Ke6 Qd1 Qfg7 Re8+ Nce7 Rh5 f8Q Nd5 Kd7 Ne3 Qgc4 Nf1 Rb1 Bd5 Ba1 Be4 Qb2 Bf5+ Qe6 Rc4 Nh8+ Kf4 Ngf3 Re4 Qff6 Ke3 Qfe5 Rg5 Qa5 Rh5 Rg1 h1B Ne1 Bf3 Rh1 Be2 Rc1 Rg5 Rc5 Rh5 Ndf3 d2 Rd5 Rg5 Rh5 Bc4 Ne5 Rd4 N5f3+ Be4 Qc6 Rf5 Rd6 Bf7 Qc4 Qb3 Rd5 d1B Nd2 Be2 Rh4 Qd1 Rh5 Bc2 Nc6 Re6 Kc8 Be4 Kb8 Re8+ Ka7 B4d3 Qca6 Bb5 Ne7 Bd7 Qc4 Bc8 Neg6 Qb3 Ne7 Qb5 Rh2 Qd7 Rh5 Qd8
BNBR3Q/n2Q2BB/2qPq2Q/rNr3b1/1b2n1kr/n2PQ3/b7/1q2K3 w - - 0 1 illegal: No possible last move
r4qRb/B6n/1P2NN1B/Q3P3/1B4K1/2N1r1r1/Nr3k1b/nQrBn2b w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 g4 h5 b4 f6 Ra3 f5 Rf3 fxg4 f5 h4 Rf4 h3 Bxh3 exf4 Bf1 Rh6 Nf3 Rh5 Ng1 Rh8 Kf2 Ke7 h4 Kf6 e4 Ke5 b6 Kd4 b5 g5 b7 a5 b6 c5 d6 a4 h5 g3+ Kf3 g2 d7 a3 f6 c4 f7 a2 h6 a1N h7 c3 e5 c2 Nc3 Nc6 b8B Bb7 Na2 Bg7 f8N Nb4+ Kg4 f3 Be2 f2 Ba7 f1R d3 Qe7 d8N Re1 Nd7 Qf8 Nf6 Be4 Ba3 Ke3 d4 c1R d5 Nbc2 d6 Kf2 d7 Bc6 Bf3 Re3 Bb4 Ne1 Ne2 g1B Nec3 Bh2 Ne6 Bb7 d8Q Bc6 Kh5 g4 Q8d5 g3 Qa5 g2 Kg4 Be4 Qd3 Bb7 Qb1 g1R+ Kh4 Bc6 Bd1 Rgg3 Rg1 Bh1 Kh5 Nh6 Kh4 Nf7 Kh5 Rg8 h8B Ng5 Kh4 Nh7 Kh5 Bh6 Bg7 Bg5 Bh6 Rg7 Qd3 Rd7 Qb1 Rd2 Nf4 Rb2 Ne6 Rgf3 Kg4 Bh4 Nh5 Bf6 Rg3 Bh8 Nf6 Qb8 Kh4 Qc8 Rg8 Qf8 Kg4 Rg3+
1k6/1n1nnq2/rB2b1NR/2BQ2b1/K2R4/1QBn2PB/2Pq1n2/2rQ1Qr1 w - - 0 1 legal: proof: d4 b5 f4 f5 a4 g5 axb5 c5 e4 cxd4 exf5 h5 Nd2 h4 Ndf3 h3 Nh4 Bg7 fxg5 Bh6 g3 Bf8 Ng2 hxg2 Kd2 a5 h4 d5 b4 Kd7 g6 Kc7 f6 e5 f7 e4 h5 d3 Kc3 a4 h6 a3 Kb3 d4 h7 d2 g7 d3 Nh3 g1R Nf4 a2 Bh3 e3 Ng6 e2 Ba3 Be7 f8Q e1N Qf1 Nd7 b6+ Kb8 b5 Ra6 b7 Qc7 Bc5 Bg5 Bb6 Ne7 g8Q Qf4 Qd5 Qf7 Rh2 Re8 h8B Rf8 Rc1 a1N+ Kb4 Nb3 Bc3 Na5 Ka4 Rh8 Rb1 Rf8 Rb4 Rh8 Rd4 Rf8 Qb1 d1Q Qa1 Qd2 Qd1 Ne5 Bc5 Be6 Rh1 Nd7 Rh2 Kc7 b8B+ Kc8 Bc7 Rh8 Bd8 Kb8 b6 Rh4 Qff5 Rf4 b7 Rff1 Bcb6 Qe2 Qf2 d2 Bc5 Nd3 Bdb6 Re1 Qf1 Qe3 Qc1 d1N Qa1 N1f2 Qd1 Qe2 Bd8 Nf8 Qd2 Qg7 Bg4 Rc1 Rh6 Nd7 Bh3 Qf7 Qdd1 Qd2 Bdb6 Nc8 Ba7+ Kc7 b8Q+ Kd8 Qbb3 Kc7 Ba3 Ne7 Bb6+ Kb8 Bac5 Nb7+
n5Q1/Kr2nQ1r/4QB2/1Bk1b1n1/3b2Pb/4Rq2/1Q2nP1R/1BqBnN2 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 f5 exf5 cxd4 Ke2 g4 Kd2 Ba6 Ke1 Bc8 Nd2 g3 Ndf3 Bb7 h3 Ba6 Nh2 gxh2 g4 Bb7 g5 Be4 Bf4 Bf3 Bc1 Bg4 hxg4 Bg7 Be3 Bh6 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 Kd7 b4 Kd6 f6 a5 g6 e5 b6 e4+ Ke2 a4 g7 d3+ Ke3 d4+ Kd2 h4 b7 e3+ Ke1 e2 Kd2 h3 b5 a3 b6 a2 f7 Nd7 b8Q+ Kc5 b7 Rh7 Qc2 Qc7 Nf3 Be7 f8Q Ra7 Qb3 Nb6 Qf7 Na8 Bb2 Bh4 Re1 Ne7 Qbg8 a1B b8Q Rb7 Qbc8 Qc6 Qce6 Qc8 Bc3 Qc7 Qb2 Qg3 Rg1 h1N Nh2 Qf3 Rg2 Ng3 Qb8 Ngf5 g8B Ne3 Qd8 Nc2 Qde8 Rh5 Bh7 Rh6 Qeg8 Rh5 Be4 Rh7 Bc6 Nb6 Ba4 Na8 Rc1 Ne1 Bd1 Qf6 Rg3 Qf5 Re3 Qd5 Bg2 Qf3 Nf1 h2 Bh3 h1N Bg2 Qf6 Bc6 Ng3 Bb5 Qf5 Ba5 Qf3 Bd8 Nc6 Bf6 Ne7 Rc3 Ne4+ Kc1 Ng5 Kd2 Qh1 Rh3 Qd5 Rh2 Qf3 Qc1 Kb4 c5 Bb2 c6 Ba1 Bc4 Kc5 c7 Bb2 c8B Ba1 Rb3 Bb2 Qc3 Ba1 Kc1 d2+ Kb1 d3 Ka2 Bb2 Bd7 Ba1 Bdb5 Bb2 Qc1 Bd4 Ka3 Be5 Ka4 Bd4 Bc2 d1N Ka5 d2 Ka6 Nc3 Qb2 d1Q B4d3 Qc1 Bd1 Ng2 Ba4 e1B Bb1 Ne2 Re3 Bec3 Be8 Ne1 Bb5 Rb6+ Ka7 Be5 Bbc2 Bcd4 Bb1 Rb7+
3RKb2/B1R2q2/2QbP2B/bN1nr1B1/r3kn1q/PR6/2bQ1b1n/1R3B2 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 c4 d5 cxd5 f6 b4 axb4 Nc3 Bd6 Ne4 Bf8 Nf2 f5 gxf5 Ra5 Ng4 hxg4 Ba3 Ra4 Bc1 Ra8 Kf2 Ke7 Kg3 b5 Kf4 c5 Kg5 g3 Kg6 b3 e4 g2 d4 b4 h4 c4 e6 Kd6 Kf7 g5 a3 g4 f6 b2 h5 b1Q e7 g3 e8Q b3 h6 b2 h7 c3 Nh3 g1B Qd3 g2 Ng5 c2 Ne6 Nc6 Bh6 c1B Qd2 Nb4 Nc7 Ne7 Rh3 Bf5 Rb3 Qa2 Rb1 Bf2 Be3 Rg8 h8R g1B Rh7 Rg5 Qa4 Nd3 Nb5+ Kd7 e5 Nf4 d6 Kc6 d7 Kd5 Qa6 Ke4 d5 Bh2 d6 Ned5 Qc6 Ra4 Rg7 Bh7 e6 Re5 Ba7 Bf5 Ra1 b1N Rh7 Qc7 Ke8 Qc2 d8B Qc4 f7 Bhg3 Qb4 Nd2 d7 Nf3 Bg5 Nh2 d8R Bd2 Rab1 Qb7 Qbd6 Ba5 Qdd7 Bg4 Qdd6 Bd1 Qb4 Bc2 Qd2 B2c5 Rg7 Bgf2 Rh7 Bfd6 f8B Qd4 Bfh6 Bf8 Rc7 Bcd6 Rcc8 Qh7 Bg7 Qh4 B7h6 Qb6 Rc7 Qb7 Rcc8 Qg7 Rc7 Qf7+
3q2n1/3P1QN1/1Pqkr3/b1bB2nR/5N1Q/n3n3/r2KBQ1r/BB2n1Q1 w - - 0 1 illegal: No possible last move
Q2N3Q/B2qb3/2Q1qP2/6k1/r1PQ2n1/2q1qKNr/n1N1N1n1/b1b2BR1 w - - 0 1 illegal: No possible last move, all moves rejected
3n1bkn/1B2Q3/1P1Nq1qn/r3rN1b/1K1QP1QN/b1rQ1R2/N3n1R1/8 w - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 b5 a4 f6 axb5 Rh6 f4 Rh8 g5 h4 b3 fxg5 Bb2 h3 f5 e5 Bd4 Ba6 Be3 Bc8 Bf4 exf4 Nxh3 Bd6 Ng1 Bf8 h4 Kf7 d4 a5 Kd2 c5 Kc3 f3 e4 g4 f6 g5 h5 c4 h6 g3 h7 g2 b4 f2 d6 g4 d7 g3 d5 a4 d6 a3 b6 a2 b7 Ne7 b5 Nbc6 b8N Qb6 d8Q Ra6 d7 Ra5 Rh2 Ng6 Nf3 g1Q Nh4 g2 Qg4 Ba3 Rh3 Re8 h8Q Re5 Rf3 Bf8 Bd3 f1N Be2 Qa6 b6 Ne3 Bf1 Nf5 Be2 Nh6 Bf1 Nd4 Nc6 Ne6 Ne7 Qb5 Be2 Qc6 Kb4 c3 Ba6 c2 Nc3 c1B Bb7 Bb2 Rc1 a1R Rc2 R1a3 Na2 Rc3 Rcf2 Qa1 Rd2 g1N Rdf2 Ne2 Rg2 Nc5 Nef5 Qg1 Qc7 Ne6+ Qd6 Bg7 Qd8 Nh8 Qd3 Qd5 Qe7+ Kg8 d8N Qd7 Nf7 Nd8 Qc5 Qe6 N7d6 Bd7 Qf2 Be8 Qfd4 Bh5 f7+ Kh7 Rh2 Bf8 Rhf2 Qg3 Rg2 Bc1 Qf4 Qgg6 Qg4 Bg7 f8Q Bb2 Qf6 Bf8 Qfg5 Kg8 Qe7 Ba3#
1Q2bNk1/r2r1N2/qn4N1/1r2b1K1/q1P2QQ1/2r1N1qB/RP2q1n1/3Q1R2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 f6 h6 g4 Ba6 g5 Qc7 f5 Qd8 fxg7 Bb7 g6 Bc8 Bg5 hxg5 Ke2 e5 Kf3 d5 Kg4 a5 h4 d3 c4 d2 b6 a4 b7 e4 h5 d4 h6 e3 h7 d3 Qc1 d1Q+ Be2 d2 Nf3 a3 Bf1 e2 Ne1 a2 Na3 Qd6 Rb1 a1R Kh5 g4 f6 g3 Bh3 g2 Nd3 e1Q+ Bg4 g1Q Nf4 Qa4 Kg5 d1R Nc2 Qgg3 Nd3 Nh6 g8Q Nf5 g7 Ne3 Ne5 Ra3 Rf1 Nd7 b8Q Nb6 Qd5 Ra7 g8Q Rc3 Ra1 Qe2 Ra2 Ng2 f7+ Ke7 Qf4 Bg7 f8N Bd7 Qdf3 Be8 Nf7 Be5 Ne3 Qda3 Qg6 Rdd7 Qb1 Qa6 Qd1 Q3a4 Q3e4 Rg8+ Qg6 Rg7 h8N Rab7 Kh6 Ra7 Bh3 Rg8 Qgg4 Rg5 Nd6 Rf5 Nhg6+ Kf6 Ne4+ Kf7 Nd6+ Kg8 Nf7 Rf6 Kg5 Rc6 Qf6 Rc5 Qf4 Rb5
1r2nr1q/1rR1K1Q1/BQ1R2R1/6qk/1qb3r1/b2BP1P1/3NR1B1/qrB5 w - - 0 1 legal: proof: d4 c5 a4 b5 axb5 g5 f4 gxf4 Nc3 e6 Nd5 Nc6 g3 Ne5 h3 Ng4 hxg4 Ba6 Ne3 Bc8 Nf5 e5 dxe5 Qg5 Nd4 cxd4 Ra6 Qf6 Ra1 Qd8 Kd2 d5 Kd3 a5 c4 h5 b4 f5 c5 Kf7 c6 Kg6 e6 h4 g5 a4 c7 a3 e7 h3 e8R f3 e3 f2 b6 h2 b7 f4 b8Q f3 b5 a2 b6 Kh5 g6 Nf6 b7 Ba3 g7 Rf8 g8B Be6 Re7 Ne8 Qa7 Rb8 Bg2 f1R Qb3 f2 c8B Re1 Rg7 f1R Qbb6 R1f7 Bh7 Qg5 Nf3 Rc7 Rg1 h1Q Rg6 Bf7 Rb1 a1Q Nd2 Qb2 Rd6 Qb4 Rb2 Rf1 Rg6 Rf4 Rd1 Rg4 Rc2 Re7 Rc7 Be6 Bd7 Qh3 Bb5 Bf7 Ba6 Rd7 Ke2 d3+ Kf3 d4 Re1 Re7 Re2 Qhh4 Rd6 Bc4+ Bf5 Qg8 Rg6 Qg5 Rd6 Qh8 Rg6 Ra8 b8R Rd7 Rd8 Rb8 Qab7 Rh7 Rdd6 Rhf7 Nb1 d2 Q7a7 d1Q Nd2 d3 Qab7 Rg7 Q7a7 Re4 Qab7 Ree7 Q7a7 Rd7 Ke4 Qf1 Ke5 Qh1 Nb3 d2 Qab7 d1R Nd2 Bb5 Kd5 Bc4+ Kc6 Rdf7 Bd3 Rf4 Q7a7 Rg4 Qab7 Rgg8 Q7a7 Rb7 Kd7 Re1 Qd4 Qf1 Qg7 Qff6 Qb6 Qa1 Bb2 Rb1 Bc1 Nf6+ Ke7 Rfb8 Bge4 Rgf8 Bg2 Ne8+
1Qq1R2n/6q1/4nQq1/1R1P2nR/1Qbbbq2/RQ2N3/1N2bKPr/B6k w - - 0 1 legal: proof: c4 b5 f4 a5 a4 d5 axb5 e5 cxd5 exf4 h4 g5 e3 g4 Be2 Ra6 Bf3 gxf3 Kf2 Rg6 Ke1 Rg5 hxg5 Qd6 Rh4 Qe7 Rh1 Qd8 b4 Kd7 d4 Kd6 e4 c5 g6 f5 g7 h5 b6 f2+ Kf1 a4 b7 h4 b5 h3 b6 h2 Ne2 a3 Bb2 a2 Qd2 c4 Qc3 Qg5 Qd3 c3 Qd1 c2 Qd3 c1Q+ Qd1 Nh6 g8R Na6 b8Q+ Nc7 b7 Qg6 Ng1 Bg7 Nd2 Nf7 Qa7 Ne6 b8R Bb7 Ndf3 Qc8 Nh4 Ba8 Ke2 f1B+ Kf2 f3 Ne2 f4 Nc1 Be2 Qaa4 Rh7 Rb7 Nh8 Re8 Rh5 Rb3 Rh6 Rb1 a1Q Nd3 Bf6 Qb5 Qa7 Ra3 Qag7 Qdb3 Rh7 Rhd1 h1Q Ba1 Qh2 Rh1 Be5 Ke1 Rh5 Nb2 f2+ Kd2 f1B Ke1 f3 Kf2 Qf4 Q5b4+ Kd7 Nf5 Rh2 d6 Bc4 Q3c3 Bfe2 Ne3 Bf6 e5 Be4 Qbb3 Kc6 d5+ Kc5 Qcb4+ Kd4 d7 Qf8 d8Q Qfg7 Ke1 f2+ Kd2 f1N+ Ke1 Nd2 Qdd6 Nc5 e6 Nf3+ Kf2 Be5 e7 Ne6 Qd8 Nfg5+ Kg1 Qg4 Kf2 Bf6 Qdb6+ Ke5 Qd8 Kf4 Qdb6 Bc3 Qd4 Q4f5 Qf6 Bd4 Qc5 Rh5 Rg8 Qgf8 e8Q Qfh6 Qc3 Rh4 Nd1 Qc6 Rb5 Qhg7 Qb3 Qcc7 Qa8 Qc8 Qcb4 Rh6 Re8 Rh7 Ke1 Kg3 Nb2 Qf4 Qb8 Rh4 Rf1 Kh2 Rf3 Qd6 Kf2 Kh1 Rf4 Rh3 Rh4 Rh2 Rh5 Qf4+
q1B3b1/Q3Pb2/1Q5Q/2n1q3/2N1nN1q/QrR1NnR1/3PK1N1/b1q1n1k1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 b3 a5 Ba3 h6 Be7 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 h4 Kd7 e4 Kd6 h5 Ke5 d6 c5 b4 g4 h6 g5 d7 f2+ Ke2 g3 h7 f3+ Ke3 g2 b6 g4 f6 a4 b5 a3 f7 a2 b7 c4 b6 c3 Kd3 Kf4 e5 Kg3 e6 c2 e7 c1Q Qb3 Bg7 f8N Nf6 Ne6 Na6 b8N Ne4 Nh3 g1N b7 Nac5+ Ke3 Qe8 Ba6 Kg2 d8Q f1Q Qdb6 f2 Nd7 g3 b8Q Qfc4 Q8a7 f1B Nc3 Nf3 Ne5 Ne1 Nd1 Qb4 Qa4 Bc4 Qa3 Qc6 Rb1 a1Q Rb3 Qa8 Rc3 Rd8 h8Q Rd3+ Ke2 Bd5 Rc2 Rb3 Nc4 Qe5 Qh6 Bd7 Bb7 Be8 Rc3 Bf7 Rg1+ Kh2 Nde3 g2 Nef4 Bg8 Bc8 Bdf7 Rf1 Bh8 Rf3 g1N+ Kf1 Kh1 Rg3 Ngf3 Nfg2 Bf6 Ke2 Qa4 Nf2+ Kg1 Nh3+ Kh2 Qg5 Qd6 Nb2 Qad7 Qh6 Qg4 Rc2 Qh4 Nbc4 Ba1 Nhf4 Qe5 Rc3 Kg1
2k1BQ1Q/b3B1Qb/bRn4B/2R5/5r1q/K3r1P1/1pN1P1nB/Q1n2r1q w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 g5 f4 e5 fxe5 g4 Na3 g3 b4 axb4 hxg3 bxa3 g4 Bb4 g5 Bf8 d4 Kd7 Kd2 h5 Kc2 f5 Kb3 c5 e6+ Kc7 e7 b5 e8Q a2 a5 b4 d6+ Kb7 g6 h4 d5 f4 d7 h3 d6 h2 g7 f3 Rb1 a1Q Bh6 f2 Nf3 Ne7 g8Q Ng6 Ne1 Nh4 Qg7 Nc6 a6+ Kb8 g3 Ng2 Nc2 Qh4 d8B Bf5 a7+ Kc8 Qef7 Bh7 Be7 Rb8 Rg1 h1B a8Q Rg8 Qh8 Rg4 Qfg7 Rf4 Qa3 c4+ Ka4 c3 d7+ Kc7 d8B+ Kc8 Bb6 b3+ Qdd4 Rb7 Rb2 Rd7 Qb4 Qc1 Qa1 Rd3 Ka3 Re3 Bd4 Ne1 Bg2 f1R Bd5 Ng2 Bf7 Qb1 Be8 Qd1 Bd8 Bc5 Be7 Ba7 Qd6 R1f3 Re1 Rf1 Bb6 Qc1 Rd1 Qb1 Rd5 Qd1 Rc5 Qb1 Ne1 c2 Qdf6 c1N Nc2 Ne1 Qgf8 Bd5 Q6g7 Ng2 Rb5 Bdg8 Bd4 Bc4 Rc5 Ref3 Bg1 Re3 Bh2 Ba6 Rb5 Nd3 Rb6 Qe1 Rb1 b2 Rd1 Nc1+ Rd3 R1f2 Rdb3 Qh1 Rc3 Re5 Rc4 Rf1 Rc5 Re3+
2b3Rn/NN2Q3/nKrN1nrQ/4pqP1/1B4N1/3Qb3/2P1nnB1/1Q1r2k1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 b4 h5 g4 g6 g5 Na6 Ra3 Nb8 Rg3 Nh6 fxg6 Ng8 Rg4 hxg4 f5 Qa5 Kf2 Qb6 Ke1 Qd8 Kf2 a5 h4 d5 h5 Kd7 f6 Kd6 h6 Ke5 b6 Ke4 b5 d3 b7 d2 f7 a4 b6 a3 g7 d4 h7 a2 Nf3 a1N Ba3 d3 Nd4 Nd7 b8Q Ngf6 g8N Nb3 b7 Ra6 Nh6 Qa5 Bb4 Nbc5 Nb3 Ne5 Na3 Ng6 Nc4 e6 Qb1 d1R Qd6 d2 b8N g3+ Ke2 g2 Nc6 Bg7 f8Q g1N+ Kf2 Ne2 Na7 Rg8 h8Q Rc6 Qfe7 Na6 Ng4 Rc5 Qh6 Nh8 Qd3+ Kf4 Rh5 Bf8 Rh4 Rg6 Bg2 Qb5 Rh3 e5 Nd6 Qd7 Na5 Qe6 Nab7 Qf5 Qe8 Be7 Rh1 Bd8 Qe7 Bb6 Rh3 Rc1 Rh5 d1N+ Ke1 Nf2+ Kd2 Rf1 Qd4+ N2e4+ Kd3 Kg3 Qc3 Rd1+ Qd2 Rd5+ Kc4 Be3 Qd3 Nf2 Rh2 Nc5 Kb5 Na6+ Kc6 Rc5+ Kb6 Qf4 Be4 Qf3 Rh3+ Kg2 Bd5 Kg1 Be4 Qf5 Bg2 Qd7 Rf3 Ne8 Rf7 Nf6 Rg7 Qf5 Rg8 Rc6+
Rn6/1bn1NN2/Q1n1NNR1/P2Qrb2/2Q1bnQB/4p3/rP2q3/n2K1k2 w - - 0 1 illegal: No possible last move, all moves rejected
k1q2rR1/B2Q2B1/QPKQ1NQ1/3R4/5bbn/n5P1/3nqpR1/R2r2nn w - - 0 1 legal: proof: f4 b5 c4 h5 a4 e5 axb5 h4 fxe5 g6 Nc3 h3 Ne4 Na6 Ng3 Nb8 Nf5 gxf5 g3 d5 Bg2 hxg2 cxd5 Rh5 Ra3 Rh4 Ra1 Rh8 Kf2 Kd7 Ke3 a5 Kd4 a4 h4 c6 e4 Kc7 b4 Kb7 e6 a3 h5 f4 b6 f5 e7 f3 Kc5 f4 d4 f2 b5 f1Q h6 f3 e5 a2 e6 Ra4 d6 Qc7 e8Q Be7 d5 Rh4 h7 Nf6 Qg6 Qe2 Qf1 Rf8 h8R Rd4 Nh3 g1N Bb2 Ka8 Nf2 Rd1 Rg8 Ng4 Ne4 Bg5 e7 Nf2 e8Q Bg4 d7 Bf4 d8Q Qc8 Rh2 Nh1 Bg7 f2 Qe5 Nd7+ Kd6 c5 b7+ Kb8 Nf6 c4 Rg2 c3 Qde8 Ka7 b8B+ Ka8 b6 c2 Ba7 c1N Qe6 Nb3 Qef5 Qe4 Qa6 Qe2 Qfd3 Nd2 Qd4 Qe8 Kc6 Qe6+ Qd6 Ne5+ Kc7 Nef3 Kc6 Qf5 Qd7 Nh4 d6 Qh5 Qe6 Qhe5 d7 Qf5 Qed6 Qfe6 d8R+ Qc8+ Qc7 Bh3 Qd6 Bg4 Rb1 a1N Rd7 Nc2 Ra1 Na3 Rd8 Qb8 Qcd7 Ndc4 Re8 Qd8 Re5 Nd2 Rd5 Qc8+
8/RNr2b1Q/1bbqrKN1/R3rB2/2k2N2/5PR1/Pp1nqnQ1/1N4Rr w - - 0 1 illegal: No possible last move, all moves rejected
1R2nb2/1N4qN/4Bn1b/2PN3n/q2N3K/1qR1r1R1/p1RPQ2Q/kr3q2 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 gxh5 d5 a4 dxe4 axb5 Nh6 b6 Ng8 f3 e5 b5 e3 Bb2 e4 Bc3 Bf5 Bb4 cxb4 Qe2 Bd6 Kd1 Bf8 Kc1 Bg6 Qd1 e2 Na3 e3 Nb1 Be4 fxe4 Rh7 Qe1 Rh6 Qd1 Rh8 c4 Ke7 h4 Kd6 h6 Kc5 h7 e1B e5 a5 h5 f5 b7 g5 e6 g4 b6 b3 h6 Kb4 c5 f4 e7 a4 e8N b2+ Kc2 g3 Nf6 g2 Nf3 g1Q Bd3 e2 Bc4 a3 Nc3 a2 Be6 Ka3 Ncd5 Qd7 Kd3 Bh4 Ke4 e1N Kf5 Qa4 Qe2 Nd3 Rc1 b1Q Rc2 Bg5 Rh3 Na6 b8N Qbb3 b7 Nc7 Nc6 Ne8 Na5 Rb8 Nd4 f3 Rg3 f2 Kg4 f1Q Kh5 Be3 Kg4 Nf4 Kh4 Rc8 b8Q Nh5 Nb7 Bf4 Rgc3 Qg7 Qbe5 Rb8 Qh2 Ne7 Qee2 Rg8 h8R Be3 h7 Bh6 Rc1 Kb2 R1c2+ Ka1 Rg3 Qf7 Rgc3 Rg3 Rg8 Re3 Rg3 Ng8 h8R Qg7 Nh7 Ngf6 Rg8 Qbc4 Nd8 Rb1 Nb7 Qcb3 Rh8 Nd6 Rg8 Be7 Ra8 Bf8 Rb8 Nde8
4RbBb/r3q2r/P4N1n/2rqn3/1Q1Q1Q2/1Bp1B1qP/qQK2B1N/7k w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 h5 a4 e5 fxe5 f5 c4 d5 cxd5 f4 Ra3 Ra6 Rg3 Bf5 gxf5 Ra8 Rg4 hxg4 e4 Kf7 d4 c5 Kd2 g5 a5 b5 f6 Kg6 e6 Kh5 d6 Kh4 f7 g3 a6 g2 h3 Kg3 e7 b3 e8B g4 d7 b2 d5 c4 d6 b4 e5 b3 e6 f3 e7 f2 Qc2 Qc7 d8Q Nh6 d7 Ra7 Nf3 g1Q Nh2 Nc6 Nc3 b1R Qb2 Rh7 Nd5 Ne5 Nf6 c3+ Kd1 Qg2 Bc4 Qb8 Qb6 Qd5+ Qd4 Kg2 d8B g3 Ba4 Qb4 e8Q Qe7 Re1 Ra1 Bc6 Ra5 Bb6 Rc5 Re2 Kg1 Ba4 g2 Be3 Kh1 Qb5 g1B Qb4 f1Q+ Re1 Qf2 Kc1 Bg7 f8Q Qg3 Qb8 Bf8 Qc7 Qdf3 Bg8 Qd5 Kb1 Nc6 Qcf4 Ne5 Qc1 b2 Bb3 Bg7 Kc2 b1Q+ Kd1 Qa1 Kc2 Qa2+ Qb2 Bh8 Bf2 Nef7 Re6 Ne5 Be3 Qed8 Re8 Qe7 Bf2 Qee6 Qd3 Rb5 Be1 Bc5 Bf2 Bf8 Bbe3 Qe7 Qdd4 Rc5
nNQ5/q3PbN1/1Q2Qnqb/1RnR4/6Rp/r1Q1rr1P/B2nk3/2K4R w - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 g5 f4 e5 a4 Nc6 axb5 Nb8 d4 f5 dxe5 fxe4 f5 Bd6 Bd2 Bf8 Bf4 gxf4 Kd2 Ke7 c4 h5 g4 a5 g5 d5 c6 h4 c5 e3+ Kc1 e2 b6 e1N f6+ Ke6 f7 Kf5 g6 Ke4 h3 Ke3 g7 f3 c7 d4 b7 a4 e6 a3 c6 a2 e7 d3 Nd2 f2 Nc4+ Kd4 Qe2 Nd7 b8Q Qe8 Ne3 Nb6 Rb1 Nf6 g8R Ra3 Rb5 Bh6 f8R Be6 c8Q Na8 c7 Bf7 Rg4+ Kc3 Bg2 f1N Qb6 Nd2 Bd5 Rg8 Nf3 a1Q+ Rb1 Rg5 Ba2 Rf5 Nd4 Rf3 Nef5 Qc6 Re8 Qe4 Ng7 Qg6 Rh8 Bf4 Qcb7 Rb3 Nc6 Nf1+ Qbe3 Kc4 Qb2 d2+ Kd1 Nd3 c8Q Nc5 Qee6+ Kd3 Rh5 Rc3 Q7b6 Bh6 Bb3 Qa7 Ba2 Ra3 Nb8 Re3 Qc1 Rf3 Rb5 Re3 Rhg5 Rf3 Qf5+ Ke3 Kc2 Ke2 Kb2 Rae3 Qfd7 Ra3 Rd5 Rae3 Qde6 d1R Qc3 Rd3 Qc4 Nd2 Kc1 Ng8 Qd4 Ra3 Qc3 Nf6
QB2R3/1bQ1Pb2/4qk1N/1bKB2q1/1n1rPB1n/Q1b2B1N/3nQ1rp/8 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 h4 g5 b4 gxh4 b6 a5 b5 Qd7 Ra4 Qd8 Rb4 axb4 Kf2 Ke7 Ke3 f5 Kd4 h5 g4 b3 e4 b2 b7 h3 e6 f4 g5 h2 b6 f3 g6 h4 d6+ Kf6 g7 h3 e7 f2 d7 Na6 b8B Nh6 g8B Bg7 b7 Nb4 Bd5 Nf5+ Kc5 Rg8 d4 Nh4 Na3 b1N Bg2 f1B Nc4 Ra4 Bf3 Nd2 Ne5 Bb5 Qe2 c6 Nf7 Qb6+ Kd6 Bh8 d8Q Rg2 Qc7 Qa6 Nh6 c5+ Qc6 c4 Kc5+ Kg5 Qb6 c3 Qc7 c2 Qa5 Kf6 Qc7 Nc4 Bf4 c1Q Qa5 Qe6 Qa7 Ra2 Qa3 Rd2 Bbd6 Ba6 b8Q Bcb7 Qa8 Bb5 Bb8 Rd1 Bc6 Rd2 d5 Rd4 d6 Bg7 d7 Nd2+ Qc4 Bh8 d8Q Bg7 Bd5 Bh8 Ne2 Bg7 Rd1 h1B Ng1 h2 Nh3 Bh8 Rf1 Bg7 Rf2 Qg1 Rf1 Bh8 Qc7 Qe3 Bd6 Qg5 Bf4 Kg6 Bg4 Rg3 Q8a7 Bf3 Bd6 Rg2 Qe2 Rd3 Qa8 Bc3 Rf2 Kg7 Bh5 Bg4 Rf8 Rd4 Re8 Kf6 Bf4 Bf5 Bg4 Bg6 Bf3 Bf7
7Q/KP2b3/n1R1rq1n/kq1NrP1Q/3b1r1p/Bn2QB2/1Q1NNN2/6r1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 b4 Bb7 g4 Qd7 Ra3 Kf7 Rf3 Ke8 Rf4 gxf4 Bc4 Qd8 Bf1 Bc8 h3 Be6 g5 Bf7 Qe2 Bh5 Qd1 Bg4 hxg4 Bg7 Kf2 Bh6 Ke1 Bf8 Ke2 Kd7 d4 a5 d6 h5 g6 c5 g5 e5 b6 Kc6 b5+ Kb7 d5 f3+ Ke3 c4 g7 f2 g6 h4 d7 a4 d6 c3 Be2 f1R Ba3 c2 Bf3 c1R Ne2 Ra7 Nd2 Qf6 d8Q Ra6 d7 Nh6 g8N Be7 g7 Ra5 Qe8 Na6 d8Q Rg1 Qd4 Rc4 Qb2 Rh7 Bc5 a3 Rh3 a2 Ba3 a1N Rh1 Qg6 Nf6 Nb3 Nd5 Qf6 g8N Rhg7 Rh2 Rc6 Qe1 Re6 Qh5 R7g4 Rg2 Rf4 Rg6 Ka8 b7+ Ka7 Nb4 Kb6 Nd3 Ra4 b8Q+ Ka5 b6 Rd4 b7 Rd5 Nec1 Rb5 Nf2 Rc5 Ke2 e3 Kd3 e2 Ke3 e4 Qc8 Qh8 Nf6 Rce5 Nd5 Qg7 Qh8 Qf6 Qf1 e1Q+ Ne2 Qb1 Qh3 Nc1 Kd4 Nb3+ Kc4 Qf1 Rg8 Qb1 Rc8 Qf1 Qg3 Qb1 Rc6 e3+ Nd4 e2 Qgg5 Rfg4 Qf4 e1B Ne2 Nd4 Qe3 Rf4 Nf1 B1b4 Nd2 Bc3 Rd6 Nc7 Kc5 Nb3+ Kc6 Ka4 Kb6 Na6 Ka7 Ka5 Rb6 Qd3 Rd6 Qb5 Rc6 Bd4+
1k3NBr/1p6/3P1b2/1b3RqB/n1PQQB2/K4n1n/2qN1nBN/1brN4 w - - 0 1 legal: proof: e4 d5 a4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 Bb5+ Kf7 Ra3 d4 Bd7 d3 Rxd3 c4 Rb3 cxb3 d4 e5 Kd2 Ke7 f4 Kd6 c4 Kc7 g4 h5 d5 b2 Kc2 h4 Kb3 h3 d6+ Kb6 f6 Ka7 f7 e4 g6 h2 g7 e3 g5 e2 a5 e1Q g6 Qf6 a6 Qg3+ Nf3 Qgh4 f5 Qe1 Rf1 h1N Be8 Nc6 Qd4+ Kb8 Bf4 Qe2 Nh2 Qfe5 f6 Nf2 Nd2 Be7 f8Q b1B f7 Nh6 g8B Bd7 g7 Bf6 Qe7 Nh3 f8N Ng4 Bd5 Qg5 g8B Nce5 Bh5 Nf3 Qee4 Ngf2 Kb2 b3 Ka3 Bb5 a7+ Kc8 Bc6 b2 Bcd5 Qd1 Bc6 Qc2 Bcd5 Rb8 a8N Rh7 Bc6 Rh8 Nc7 Ra8+ Kb4 Kb8 Nd5 Ra1 Ne3 Ba2 Ka3 Rc1 Nd1 b1N+ Kb4 Nc3 Ka3 Na4 Qee5 Ne1 Bg2 Bb1 Qe7 Nb6 Qee4 Na4 Be3 Nh1 Rf5 N1f2 Bf4 Nf3
R5K1/Q1Q2pr1/2r1Pb2/1br2B1N/1n2N1P1/1n1k1Nn1/q1N1r1R1/3nQQ2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bd6 Ba3 Bh3 axb5 Bf8 b6 Bg4 b5 Bc8 Bb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 d4 c5 d6 h4 d5 f3 g6 h3 b7 f2 d7 b3 e4+ Kb4 b6 c4 d6 b2 g7 c3 Bd3 f1R Nf3 h2 Na3 b1N Rg1 h1R Rg2 c2 Qe1+ Nc3 Kf5 c1N e5 Ra4 e6 Nc6 b8N Nf6 g8N R1h2 b7 Nh5 Nf6 Nb3 Ne4 Be7 Raa2 Qe8 d8Q Bf6 d7 Ra6 Qc7 Rh7 d8Q Bd7 Bb1 Qf8 Nc2+ Kc4 Ra1 Be8 Qdd1 Qa3 Nd7 Qa2 b8Q Rf2 Qa8 Re2 Qaa7 Rh3 Qc1 Kd3 Qf1 Nb4 Qce1 Qa4 Ra3 Nd1 Ra1 Rc6 Ra2 Be7 Ndf6 Ng3+ Ke5 Bd8 Nh5 Rc5+ Kd6 Bb5 Ra3 Rc6+ Kd7 Bh4 Ke8 Bf6 Kf8 Qa5 Kg8 Rh2 Ng7 R2h5 Ra4 Rhc5 Nh5 Na2 Qab8 Qd2 Ra8 Qa5 Qca7 Nb4 Qbc7 Qa2 Ncd4+ Kc4 Nc3 Rh6 Bf5 Rh7 Ne4 Kd3 Nc2 Rg7+
1RQ5/1K1nn2q/1bn5/r3k2P/1R1R2p1/2N1nBRr/1QP1N1N1/qr1N3n w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Nh6 f6 Ng8 g3 Bb7 g4 Bc8 f4 h6 g5 Kf7 Be3 Ke6 f5+ Kd6 g6 Bb7 Bd2 Bd5 Bg5 Bf7 gxf7 hxg5 Ke2 e5 Kd3 a5 Ke4 g4 b4 g5 h4 g3 b6 a4 b7 g4 h5 g2 b5 a3 b6 d3 Nh3 g1R Nf2 d2 Be2 a2 Bf3 Ra3 Rh3 Qc7 Rg3 Nc6 b8R Nge7 Qc1 d1N b7 Ne3 Nc3 Rh6 Qb2 Rb1 Nfd1 Rg6 Rd8 Rg5 b8R Bh6 f8N Bg7 Kd3 e4+ Kd2 Qb7 f7 Bd4 f6 Rga5 Ne6 Bb6 f8N Ke5 f7 d5 Nf4 d4 Nfe2 d3 Ne6 Qd7 f8Q Qc7 Ke1 d2+ Kf2 Qd7 N6f4 Qf5 Rd4 Qh7 Ncd5 Rd3 Ng2 Rb3 N1c3 Rba3 Qc8 d1N+ Kg1 Nf2+ Nd1 Nh1 Ndc3 Rc1 Rb1 a1Q Qa2 Rb3 Rb2 Rba3 Rbb4 Rb1 Qb3 N3f5 Qb2 e3 Nef4 e2 Kh2 e1N Nfe2 Nd3 Kg1 Nc5 Kf1 Bd8 Ke1 Nb7 Kd2 Bc7 Kd3 Nc5+ Kc4 Bb6 Qa6 Nd7 Qc8 Ra7 Kb5 Ne3 Ngf4 R7a4 Ng2 Ba5 Ka6 Bb6+ Kb7 Ra5 Nf2 Rf1 Nfd1 Rb3 Qc1 Rb1 Qb2 Rf2 Ne1 Rh2 Ng2 Rh3
1bb2R1b/n1B2p1r/5NRq/rB2K2P/2Qb3P/b6R/BQ2bk2/1b1BR3 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 h6 g4 Nf6 h4 Nh5 gxh5 Nc6 Nd2 Ne7 Ne4 Ng8 Ng5 hxg5 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 g4 b4 g5 c5 d6 c6 a4 c7 d3 b6 d2 b5 g3 b7 a3 b8Q a2 b6 g2 b7 g4 Qa4 d1B Nf3 g1B Bf4 g3 Rh3 g2 Nh2 Rh7 Ng4 Ne7 Nf6 Bh2 Qc4+ d5+ Kd4 Kf5 e6 Ba4 Re1 g1B+ e3 Bad7 Be2 Ra5 Bd1 Ba4 Bg3 Qd6 Bf4 Bf2 Rg1 Bb3 Rg6 Bc2 Be5 Bb1 Bf4 Bd7 c8B Qa6 Bc7 Nc6+ Kc3 Na7 Kd4 Bfd6 e7 Ba3 e8B Be6 Bb5 a1B+ Qc3 Bhd6 Bcd7 Qc6 Bc4 Qa6 Bdb5 Bc8 Ba2 Bdg3 Qb2 Qd6 Qc3 Qf8 Qb2 Qh6 Qa8 Bf4 b8R Bfd6 Qc6 Bh2 Kc3 d4+ Kc4 d3 Kd4 d2 Qc4 Be5+ Kd5 Bg1 e4+ Kf4 Ra8 Bed6 e5+ Bd4 e6 Be5 e7 Bed6 Ba4 d1B e8R Be2 Bd1 Be5 Rh2 Kf3 Rh3+ Kf2 Rf8 Bg4 Rae8 Bc8 Bd8 Bb8 Bc7 Bc2 Ree3 Bf1 Re1 Be2 Ne8 Bh8 Nf6 Bb1 Ke5 Bg7 Qbc3 B1b2 Qd5 Bh8 Qc4 Bc1 Q3b4 Be3 Qb2 Bd4+
1Rq1n2k/3pb3/2q2N1n/Pn2K2R/Qb1QB1b1/3q2rb/1Q1PRB2/5QR1 w - - 0 1 legal: proof: e4 b5 g4 a5 c4 f5 exf5 Kf7 f6 Ke6 f7 Kd6 b4 axb4 cxb5 Ke6 Bb2 Kd5 Bc1 Kd6 f4 h6 f5 Ra5 f6 Ra3 Nc3 h5 Nd5 Rf3 Ne3 Rf5 gxf5 Nc6 Ng4 hxg4 Kf2 Nb8 Ke2 Kd5 Ke1 Kd6 Kf2 Ke5 Kg3 g5 h4 c5 a4 b3 h5 c4 b6 b2 h6 b1B a5 c3 h7 c2 b7 Na6 b8R Nc7 Rh5 Ba6 Rh3 Ne8 Qe1+ Be2 Rh2 Nh6 Rb3 Rg8 h8R Qc8 Ba3 c1Q Rf2 Q1c6 Nh3 e6 Rb7 Bb4 f8Q Bc2 f7 Kf6 Qd1 e5 Rc1 e4 Qc5 Kg7 Nf4 e3 Rb8 Be4 Qdc2 Bg2 Qa4 Bh3 Nd5 Bd1 Rh2 e2 Bg2 e1N Be4 Nc2 Re2 Nd4 Nf6 Nb5 Qcc2 Be7 Bb2 Bb4 Bd4 Be7 Qb2 Bb4 Kf2 g3+ Ke3 g4 Kf4 g2 Ke5 g1Q Bf2 g3 Rb1 g2 Ra1 Bc2 Rd1 Qh1 Rg1 Bd1 Rh7+ Kf8 Qd4 Rg3 Rh8+ Kg7 Qb2 Ng8 Rh5 Nh6 Qd4 Kh8 f8Q+ Rg8 Qfd6 Rg3 Qb2 Qc2 Qdd4 Qd3 Ng4 Be7 f6 Bb4 f7 Be7 Rge1 g1B Nf6 Bh2 Rg1 Qg2 Ree1 Bdg4 Re2 Bb4 Ng8 Qgf3 f8Q Qh1 Qf3 Be7 Nf6 Bb4 Ra1 Qhc1 Qg2 Q1c6 Qf1 Bg1 Be1 Be3 Bf2 Bg5 Ng8 Bf5 Qfb1 Bge7 Nf6 Bg2 Qh1 Be6 Qh3 Bf3 Rg1 Bf5 Qg2 Bh3 Qf1 Bfg4
2b2NQN/2N1q1p1/P1R2P2/1b4bK/R2RqB1r/3b2R1/2Q2qnq/1Nn4k w - - 0 1 illegal: No possible last move, all moves rejected
b5b1/B2NB2k/rN1Bn3/p2Q1K2/1n2rPB1/3RN3/3bQ1Pn/3Nr1rn w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 c4 d5 f4 g4 b4 Qd6 Ra3 Qe5 cxd5 fxe4 h4 Qg7 Rf3 Qg5 hxg5 gxf3 Kf2 Kf7 Ke3 Kg6 d4 a5 d6 h5 d5 c5 b6 e5 b7 c4 b5 h4 b6 c3 d7 c2 d8Q h3 d6 f2 d7 h2 Nd2 Ra6 Ba3 c1N Bd6 Nb3 Qe2 Kh7 Nh3 Nd4 Nc4 Nbc6 b8N Nf6 b7 Ne6 Nb6 Nb4 Rg1 h1N g6+ Kg8 g7 Kh7 g8N Ng4+ Kd2 Be7 Nh6 Nh2 Ke3 Re8 Nf5 Bf8 Qg5 Bg7 d8B Bh8 Kd2 e3+ Kc3 Bf6 B8e7 e4+ Kc4 Bb2 N8d7 Bc3 b8B Bb7 Ba7 Bd2 Qgh5+ Kg8 Qhf3 Ba8 Qh5 Ng7 Qhf3 Kh7 Kd4 Ne6+ Ke5 Bb7 Qe1 e2 Ne3 Ba8 Qd1 e1R Be2 f1B Nf2 Ng4+ Kf5 Nh2 Qc2 Rc1 Bd1 Bc4 Be2 Re1 Nfd1 Bcd5 Rf1 Bb3 Rf2 Rg1 Qc5 Bc4 Qd5 Ba2 Qg4 Bb3 Rf3 Bc4 Nc2 e3 Rg3 Ba2 Bf3 e2 Nce3 e1R Be2 Bb3 Qgf3 Ba4 Qf1 Bb3 Bg4 Rc8 Qe2 Rc4 Nf1 Re4 Rd3 Bc4 Nfe3 Ng5 Qb7 Bg8 Qd5 Ne6
6bn/kr1K1RQ1/7N/bP1RP1RQ/1bB3N1/pqN4p/1RN5/n2rn1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 g5 h4 Bd6 h6 Bc5 h5 Bf8 b3 Nf6 Bb2 Ng8 Bd4 Bh3 Bf2 Bc8 Bh4 gxh4 Kf2 Kd7 Kf3 c5 Kg4 a5 Kf5 f3 d4 h3 e4 a4 b4 c4 b6 f6 b7 a3 h7 c3 h6 c2 d6 Kc6+ d7 Kb6 Ke6 c1B e5 f2 d5 f5 d6 f4 Nf3 Na6 b8R+ Ka7 Nc3 Qb6 Rg1 Ne7 Nd4 f3 Bc4 f1N Nc2 f2 Qh5 Nh2 Rg5 Bd2 Rf1 Rg8 h8Q Nf3 h7 Ne1 Qg7 Ng6 h8N Qb5 Nf7 Nh8 Rb6 Rb8 Nh6 Rb7 Ng4 Qa4 Rb5 Qb3 Rd5 Be7 b5 Nb4 Rf5 Bd8 Rg5 Bb6 Ke7 Bc7 d8N Be6 d7 Ba5 Nf7 Rd8 Nfh6 Bg8 Rh1 f1R Rh2 Rh1 Rf2 Rg1 Rf7 Rc8 Ke6 Rcc7 d8R Rd7 Rc5 Rd3 Rdd5 Rd4 Rc7 Rd3 Kd7 Rd4 Nce3 Nbc2 Rf2 Na1 Rh2 Bc1 Rb2 Rd1 Nc2 Bb4 Ke8 Be3 Rf7 Bf2 Kd8 Bb6+ Ke8 Bc7 Kd7 Bca5+
1QQ1B2n/b2BK1Q1/3bNn2/1qnP4/qp1PN1BR/2B5/p1k3rq/Q1r5 w - - 0 1 legal: proof: b4 b5 e4 d5 g4 h5 gxh5 e5 a4 c5 f3 Bf5 exd5 bxa4 b5 e4 Ra2 e3 Rb2 Be4 Rb4 cxb4 fxe4 Kd7 Bg2 Ke7 Bf1 Ke8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 a5 h4 f5 Ke6 Kd4 c4 g5 h6 g4 h7 a3 e5 f4 h5 g3 d3 a4 c5 e2 b6 e1N c6 a2 b7 a1Q c7 a3 c8B g2 h6 f3 Nd2 Kc3 Nh3 g1B Bd7 f2 Ng5 Qc7 Rh4 Nf6 Be2 f1Q Bg4 Na6 b8Q Ba7 d4 Rg8 h8Q Nf3 h7 Qb5 Qg7 Bd6 h8Q Nc5+ Kf7 a2 e6 Qca5 e7 Qb2 e8B Qaa4 Qe1 Kc2 Qc8 Rb8 Nde4 Ra8 Ne6 Ng5+ Kg6 Rb8 Bd2 Nf7 Bc3 Rb6 Qa1 Rc6 Qh6 Rc7 Qf4 Nh8+ Kg5 Qc1 Kf5 Qg1 Qe5 Qh2 Qg3 Be7 Kg5 Rc6 Qgb8 Bd6 Bgh5 Nd3 Bd2 Kb3 Qg6 Rc1 Bc3 Nc5 Kf5 Rg7 Qf7 Rg4 Qg7 Rg2 Bg4 Ng8 Kg5 Nh6 Kf6 Kc2 N4g5 Bf4 Ke7 Ng8+ Kf8 Bg3 Ne4 Nf6 Ke7 Bd6+
N3b3/3QRR2/3nQ3/1NqpRB2/1r2bP1r/qp1Pn1Q1/q2R1K2/k5nQ w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 a3 g4 a4 g3 axb5 c5 Ra5 cxb4 Ra2 Ba6 Ra1 Bc8 h4 Na6 f3 Qa5 Bb2 Rb8 Ke2 Bb7 Bd4 Qb6 Bf2 gxf2 g4 Ra8 g5 Bc8 g6 Nb8 Bg2 Bh6 Bf1 Bg5 hxg5 Qd8 c4 a5 f4 d5 d3 Kd7 f6 Kd6 b6 Kc5 b7 Kd4 f7 e5 f8Q h5 c5 a4 c6 h4 c7 h3 g7 e4 g6 e3 Qe1 b3 Rh2 a3 Kf3 e2 Qf5 a2 Na3 Ne7 g8R Qd6 g7 Nd7 b8Q Qc5 Qb6 Rb8 Nc4 Rh4 Qbe6 Rb4 Nb6 Ne5+ Kg3 Nc4 Rf8 Nd6 g8Q Bd7 c8R Be8 Rc7 Nc6 Na8 Ne5 Rg2 h2 Re7 h1B Rff7 Nf3 Rd1 a1Q Rd2 Kc3 Qg7+ Nd4 Nf3 Qa3 Rg1 Qa2 Bh3 f1N+ Kf2 Ne3 Rg5 Bg2 Qh1 Qa3 Ne5 Be4 Nc6 Qa2 Qg8 Nf3 Na7 Ng1 Qfh7 Qa3 Re5 Qa2 Bf5 Qa3 Rd1 Kb2 Rd2+ Ka1 Nb5 Qa2 Qhg6 Qa3 Qd7 Qa2 Qge6 Qa3 Qgg2 Qa2 Kg3 e1Q+ Qf2 Qec1 Qfh2 Rh6 Kf2 Qca3 Qg3 Rh4
n1Q1R1r1/BR1rQr2/p4Pqk/q7/2NQP2K/2bp2q1/1Qb1R3/1B1n2R1 w - - 0 1 legal: proof: d4 e5 b4 exd4 g4 b5 a4 f5 axb5 c5 Ra6 h6 Rf6 h5 gxh5 f4 Nd2 f3 Ndxf3 d3 Nd4 cxd4 Rf5 Qh4 Rf7 Qd8 h4 g5 f4 d5 Kf2 a6 Kg3 d2 e4 g4 c4 d3 c5 d4 f5 Bd7 f6 Ne7 b6 Bh6 b7 Bf5 c6 Qc8 c7 Qd8 c8Q Rh7 b5 Nd5 b6 Ne3 Nf3 Bg6 Ne5 Nd7 b8R Bf5 b7 Be6 Qa4 d1Q Rg1 d2 Bd3 Qb3 Nc4 d1R Bb1 Bd5 Qb4 Nb6 Bb2 Bg5 h6 Qa3 Rd7 Rf7 h5 Bc6 h7 Ba4 h6 Bc2 Bc1 Rd3 Rc7 Nd1+ Be3 Bf4+ Kh4 g3 Bf2 g2 Qd6 Bd2 h8R+ Rf8 h7 Bc3 Rc6 Kf7 Qe7+ Kg6 Rd6 Rf7 Re8 Qc7 h8Q Qa5 Rd5 Rd2 Rb5 Rd3 Rb2 Qd6 Qg8+ Kh6 Qgg4 Qde5 Qgd7 Qf5 Qdd8 Qg6 Ra2 Bb3 Re2 Bc2 Rge1 g1Q Qdd7 Q1g2 Rg1 Rg3 Qd5 d3 Qd4 Ra7 Ra8 Qf1 b8Q Rd7 Ra7 Na8 Qb2 Qg2 Rc7 Qgf5 Rb7 Rg8 Qde5 Qgg6 Ba7 Qf3 Qd4 Qfg3+
1Q1Q4/p4Q2/2N5/PR1bB2K/bn2Br2/3B1nr1/3pBkqP/rQ1R1qq1 w - - 0 1 legal: proof: e4 f5 d4 e5 f4 c5 g3 Na6 dxe5 fxe4 b4 Nb8 bxc5 Qh4 Bg2 Qg5 Bf1 Qd8 f5 Be7 Nd2 Bg5 Ndf3 Bf4 gxf4 h6 Ng5 hxg5 Bg2 g4 Bh3 Rh6 Bf1 Rh8 Kf2 Ke7 Kg3 g5 c4 b5 a4 d5 f6+ Ke6 c6 Kf5 a5 d4 f7 b4 f8Q+ Qf6 c7 d3 e6 d2 c5 e3 e7 Ke4 e8B b3 c6 e2 f5 Ke3 Qg7 e1R Qc2 b2 Ra2 b1B Nf3 Nh6 Ne5 Bb7 c8B Na6 c7 Nf7 Rb2 Rg8 Nc6 Nb4 Bd3 Ne5 Bg6 Nf3 Qf7 Rb8 Bd7 Rbf8 c8Q Rf1 Qd1 Bc2 Qd8 Ba4 Be6 Qg7 f6 Ba8 Bec4 Bb7 Nd4 Bd5 Bge4 Qg6 Nc6 Qf5 Kg2 g3 Bb5 Qg6 Kh3 g2 Kg4 Kf2 Rb3 Qf5+ Kh5 g1Q Bb2 Qg2 Qb1 Qf4 Bbc4 g4 Be5 g3 Be2 Rd1 Bcd3 Rc1 Rd1 Rg7 Qb2 Ra1 Qb1 Rg6 Qg8 Rg4 f7 Qf6 Rb2 Rf4 Qh8 Rg8 f8Q Rg6 Qf7 Qf5+ Qg5 Qfh3+ Qh4 Qf1 Rb3 Qhg2 Q4d8 Qgh1 Qfg7 g2 Qg5 g1Q Qf7 Nc2 Qb8 Qhg2 Rb5 Nb4 Qgd8 Rg3
1K5N/1pb2n2/NQ1rkq2/rQr2RP1/5PN1/4Np2/1Rn4n/B1nbR1R1 w - - 0 1 legal: proof: c4 a5 f4 f5 e4 g5 b4 d5 cxd5 axb4 Be2 e5 exf5 g4 Bf3 g3 hxg3 e4 g4 exf3 g5 Ke7 Ba3 Kf7 Bc1 Ke8 Kf2 Ke7 Ke3 h5 Ke4 c5 Ke5 b3 g4 h4 d4 h3 a4 b2 d6+ Kf7 g6+ Kg7 a5 h2 d5 c4 d7 c3 d6 c2 f6+ Kh6 f7 Kg7 a6 Qa5+ Qd5 Qb6 d8Q Be7 f8R Qb5 a7 Rh5+ Rf5 Qd7 Qb6 Qc7 Na3 b1R Nc4 Qd7 Nh3 Bd8 Rg1 h1N Ne3 Na6 Bb2 c1N Nf2 Qb5 d7 Qc6 Qdb5 Ng3 g5 Nb4 Ra2 Rh6 Ba1 Nf1 Nfg4 Nc2 Rb2 Qf6+ Kd5 Kf8 g7+ Ke7 Kc5 Nh2 Kd5 Bc7 d8N Bd7 Nf7 Bd8 Nh8 Rg6 Kc5 Nh6 g8R Nf7 Kd5 Rc8 a8N Rc3 Nc7 Rc5+ Ke4 Be6 Na6 Bc4 Rg7 Be2 Rh7 Bd1 Re1 Nf1 Rh1 Nh2 Rhg1 Rh6 Qe2 Ra5 Qeb5 Rg6 Kd5 Rh6 Kc5 Rg6 Qc7+ Ke6 Kb6 Rh6 Ka7 Rg6 Ra2 Rb4 Qcc5 Rc4 Qcb4 Rc5 Kb8 Rg8 Rb2 Re8 Ref1 Re7 Qd4 Rd7 Re1 Rd6 Qdb4 Rd4 Qb6+ Rd6 Q4b5 Bc7+
1R3K2/2q1nB2/k1pbQN2/2pb2r1/1qPQ1q1q/2NB1n2/3P2Nr/5BBN w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 b4 gxh4 Ra6 d6 Rc6 a5 Rc5 dxc5 bxa5 Bd7 Qf3 Be6 Qd1 Bc8 Ke2 Kd7 Ke3 h5 Ke4 e5 Kd5 h3 c4 e4 f4 e3 g4 e2 f6 e1Q a6 h2 g5 h4 g6 h3 a7 Qg3 f7 Qdh4 f5 Qf6 b6 Qfg5 g7 Na6 b7 Q3f4 b8Q Qgg4 f6 Qgg3 Qb6 Qc3 Ne2 Nh6 g8B Bg7 f8N+ Kd8 f7 Bd7 Ng3 Kc8 Ne6 Qb4 f8N Nb8 Qg4 Nc6 Bf7 Nf5 Bb2 Ncd4 Nc3 Be5 Nh7 Nf3 Nf6 Bd6 Ba1 Rb8 a8B Bb5 Rg1 h1Q Rg2 Qg1 Nh1 h2 Qh4 Be8 Rg8 Qg7 Qf2 Rh5 Qd4 Rg5 Bc6 Ra8 Ba4 Ra7 Bc2 Rb7 Bcd3 Kb8 Qc6 Ka7 Qd7 Ka6 Qe7 Ba4 Rb8 Bd1 Kc6 Bc2 Kd7 c6+ Ke8 Rd7 Bde2 Be4 Bd3 Bd5 Bb2 Rc7 Ba1 Qh7 Qd7 Ne7 Kf8 Qe5 Nf4 Ra7 Ng3 h1Q Ng2 Qf4 Qe6 Q1h3 Nh1 Q7h4 Qee3 Qd7 Qe6 Qc7 Bfg6 Qd7 Na4 Qh7 Qde5 Rb7 Bd4 Nf5+ Qe7 Qh5 Nc3 Qc8+ Be8 Rd7 Bg1 Qc7 Bg6 Qhg4 Qd4 Qh3 Ke8 Qhg3 Qee5 Rh7 Bf7 Ne7 Qe6 Rh2 Kf8 Qgh4
3nqQ2/2NN1rR1/6Kr/5p2/1P1r1kBQ/Pr1r3p/2nnb1BN/B2B3N w - - 0 1 legal: proof: b4 b5 f4 a5 bxa5 g5 h4 d5 hxg5 e5 c3 exf4 a3 b4 Ra2 b3 Rc2 Bb4 cxb4 Bg4 Rc3 Bc8 Rc4 dxc4 Kf2 Kd7 Kf3 Ke6 Ke4 h5 g4 c5 d4 f3 g6 f6 d5+ Kd6 g5 b2 a6 f2 g7 h4 g6 c3 a7 c2 Qd4 c4 Nf3 h3 Nh2 c3 Rg1 Na6 Nd2 b1N Bg2 f1R Bb2 c1R Ba1 Ne7 g8N c2 g7 Rf3 Ndf1 Rh7 Ng3 Bg4 Nh1 Rb8 a8N Qf8 Nc7 Rd3 Kf4 f5 Kg5 Nd2 e4 Nc5 Nf6 Bh5 g8B Rb6 Nd7 Qe8 Qh8 Nc6 e5+ Ke7 e6 Kd6 e7 Rf7 Qg7 Nd8 Qf8 Be2 Kg6 Ncb3 Ne5 Qd7 e8B+ Qe7 Ba4 Rb1 Nd7 c1R Bh7 Nd4 Bd1 Nc2 Bg8 Bf1 Bg4 Rd1 Bh5 Rg7+ Kh6 Re3 Bgf3 Nb7 Nb8 Ne4 Be2 Rd2 Bd1 Rbb3 Be6 Rf7 Rg7 Rec3 Bc8 Ke5+ d6 Qd8 Bhg4 Qe8 Kh7 Rd4 d7 Ra6 d8Q Kf4 Qh4 Nd8 Bb7 Rcd3 Nd7 Nd2 Bg2 Be2 Qhe7 Rg6 Qh4 Rg5 Kh6 Rh5+ Kg6 Rh6+
4N1q1/3rRqB1/1QPR4/QP1qpqkq/nQKp4/b7/N1b1n1NQ/6N1 w - - 0 1 illegal: No possible last move, all moves rejected
n5bq/3N1Kp1/br1b3B/k4PP1/1b1R2Q1/p3QNb1/4NB1Q/N1Qr2q1 w - - 0 1 legal: proof: a3 Na6 c4 Nb4 axb4 h5 g4 h4 Ra3 f5 Rg3 hxg3 e4 b5 cxb5 e6 e5 a5 Bd3 c5 Be4 fxe4 d4 a4 d5 a3 dxe6 d5 Ke2 c4 Ke3 d4+ Kf4 c3 Kf5 g2 Kg6 d3 f4 c2 h4 d2 b6 e3 e7 Kd7 f5 Kc6 e8Q+ Bd7 b5+ Kb7 b4 e2 e6 e1Q h5 Qf2 h6 Qc8 e7 Qd4 h7 Qf4 Rh4 Rb8 Kf7 Qf2 Nc3 Qd4 Nf3 g1B Ne2 Ka8 b7+ Ka7 b6+ Ka6 b5+ Ka5 Qf1 d1B Bh6 Ra8 b8N c1B b7 Bf4 b6 Bb5 Nd7 Ra6 b8N Bf2 b7 Nf6 Nc5 Nd5 Nbd7 Nc7 b8B Na8 Ba7 Rb6 g5 Bda4 Qc1 B2g3 Qd8 Bd1 e8Q B4d6 Qee3 Ba6 Qc7 Qa1 Rd4 Bb3+ Qc4 Rg8 h8Q Qg1 Qc6 Qb8 Qce4 Bfe7 Qg4 Rd8 Qe8 Ba2 Qf2 Bb3 Qh2 Bf8 Qe3 Bfe7 Ne6 Bb4 Nec5 Bed6 Kg6 Ba2 Qcc1 Bg8 Nb3+ Kb5 Na1 Bh7+ Kf7 Ka5 Nf6 Bde5 Rf4 Rd1 Nd7 Bed6 Qed2 Rb5 Bf2 Qh8 Rd4 Rb6 Qe3 Bg8+
2rb1k2/1Rq1p1N1/1Qb1PK1p/7N/2b3QR/3n1bq1/RPn1R3/bQQ1B3 w - - 0 1 illegal: Other
3RK2R/1N1B4/PbQPb1Bb/4n1RQ/3B1rBb/kpn5/3pq3/3q2qR w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 h5 b4 axb4 g4 e5 gxh5 Qh4 d6 Qd8 e4 b5 f4 Ra7 f5 Bd7 d5 Ra5 Nd2 Ra3 Nb3 Bc8 Nd4 exd4 e5 Rg3 Qd2 Rg6 Qd1 Re6 fxe6 Qd7 Bb2 Qe7 Bc1 Qd8 Kf2 c5 Kf3 f5 Kf4 b3 h4 c4 a4 b4 e7 Kd7 Kg5 b2 Kg6 b1Q Kf7 g5 h6 d3 a5 b3 h7 f4 a6 c3 h5 c2 h6 g4 Qf3 g3 Ne2 g2 Ng3 g1B Bb2 c1B Ra5 Bb6 Nf5 Nf6 Bd4 Nc6 Bh3 Ne4 Bg4 Nc3 Rb5 Rg8 h8Q Qb2 h7 Qe2 Qf6 Bh6 h8R Bb2 Qh3 f3 Qh5 f2 Ra5 f1Q Rc5 d2 Qfg6 Qc7 e8B+ Kd8+ d7 Qa7 e6 Kc7 d8R Qfd1 Ra5 Ne5+ Ke7 Ba3+ Nd6 Rf8 Bd7 Rf4 Ke8 Bb4 Nb7 Be7 Qe4 Bf6 e7 Bh4 Bb5 Bf5 Bd7 Be6 Qc2 Bc5 d6+ Kb6 Bc8 Kc6 Bd7+ Kd5 Qe4+ Kc4 Qf3 Kb4 Qc6 Bb6 Rd5 Nd3 Rg5 Bc4 Bdf5 Ka3 Bg6 Bg8 Kd7 Bc4 e8B Be6+ Ke7 Ne5 Bd7 Ba5 Ke8 Qc5 Bg1 Bb6 Bf2 Qce3 Bg1 Qg3 Bd4 Qgg1
3Qq1bb/B2PBQ1b/3R1Np1/2qb3r/4r2R/1pnqR2P/1R2B3/k1K1B3 w - - 0 1 legal: proof: f4 e5 g4 h5 c4 d5 cxd5 a5 b4 axb4 Nc3 Nc6 Ne4 f5 fxe5 f4 Nf2 Nce7 Qa4+ Kf7 Qd1 Nf5 gxf5 Ke8 Ng4 hxg4 a4 Ke7 e4 b5 d4 c5 Kd2 g6 a5 f3 e6 Kd6 f6 g3 a6 f2 a7 g2 f7 b3 e7 b2 e8R b1B Be2 f1B Nf3 g1Q Ra2 b4 Ne5 c4 Ng4 b3 Nf6 Rh5 Rb2 Bg7 f8B+ Ne7 h3 Rb8 a8R Rb4 Ra4 Qg3 Rh2 Bh8 e5+ Kc7 e6 Kb6 d6 Kb5 d5 Be4 d7 Qd3+ Ke1 c3 d6 Kc4 Be3 c2 Ba7 Nd5 e7 Kc3 Rg2 Qb6 d8B Qc5 Ba5 c1Q Rg3 Qa1 Rd8 Be6 e8Q Bg8 Re3 Bh7 Be7 Bfg2 Qg8 Bf5 Qe8 Be6 Rd7 Beg8 Qf7 Qa3 Rd8 Qc8 Rd7 Qe8 Qd2+ Kc4 Kd1 Bf3 Kc1 Be4 Qf8 Nc3 Qf7+ Bd5 Rd8 Kb5 Rd7 Re4 Rd8 Qc5 Rd4 Ree5 Rh4 Re4 Rd7 Kc4 Qd1 Na4 Be1 Nc3 Qd2 Nd1 Qa5 Nc3 Qd8 Kb4 Rb7+ Ka3 d7 Rd4 Rb6 Re4 Rb1 Ka2 Rb2+ Ka1 Re6 Bb7 Rd6 Bd5
1B1Q3n/PR4pN/1K2N1P1/1n2q3/r1pb3N/k3q2n/q1BBB3/N2r1Q1q w - - 0 1 legal: proof: e4 a5 b4 axb4 d4 f5 exf5 h5 g4 d5 a4 c5 c4 Qb6 cxd5 Nf6 g5 Ng8 d6 Bd7 d5 Bc6 dxc6 Qd8 Ra3 Nh6 Rg3 Ng8 Rg4 hxg4 Kd2 e5 Kd3 b5 f4 g3 h4 g2 a5 b3 d7+ Ke7 h5 Kd6 f6 b2 h6 b4 Kc4+ Ke6 Kb5 e4 g6 e3 h7 b3 c7 e2 c8B e1Q f5+ Ke5 a6 Qe7 d8B Nc6 f7 Na7+ Kb6 Qe3 f6 Nh6 Na3 b1Q Bd2 Kd4 Bc7 b2 Be2 Nb5 Qf1 Q7e5 Bf5 Be7 f8N Qa2 f7 b1Q Bc2 Bf6 Ne6+ Kd5 f8N Nf7 Nf3 g1N Bd6 Nh3 Nh4 Rg8 Rg1 Nh8 Bb8 Qe1 Rg4 Qd1 Rb4 Qe1 Nd7 Rd8 Ndf8 Qeb1 Ba4 Qbe4 Nc2 Qh1 Na1 Rd7 Bc2 Raa7 Rb3 Rd8 Rd3+ Kc4 Rc3+ Kb4 Rb3+ Ka4 Rb4+ Ka3 Rb1 Rad7 a7 Rd4 Rb2 Ra4 Rb4 Nf7 h8Q Rd3 Qg8 Nh8 Nh7 Rd4 Qd8 Rd7 Bc3 Rd1 Bd2 Q5f4 Re4 Bd4 Re5 Qfe4 Rd5 Qf5 Rd7 Qfe5 Rb7 c4+
2R5/bN2R2b/1Q3Brq/1pnb4/1RBR1P2/K1Bbb2k/2Pp4/1QrB2b1 w - - 0 1 legal: proof: e4 c5 h4 a5 d4 g5 dxc5 Nc6 hxg5 Nb8 b4 axb4 Bb2 f5 Qd5 Na6 Bc1 Nc7 Qd1 d5 Nc3 d4 Nge2 Nh6 Ng1 Nd5 exd5 Ng8 Ne4 fxe4 Kd2 Kf7 a4 Kg6 g4 h5 f4 b5 a5 e5 a6 b3 d6 h4 c6 b2 c7 b1B a7 h3 d7 d3 Kc3 d2 Kb2 h2 Nh3 e3 Bd3+ e4 Re1 h1B Ra4 e2 Rd4 Nf6 Nf2 Rh6 Rb4 Bd6 Bc4 e3 Ne4 Qh8 d8B Bf5 c8R Ba2 Nc5 Bhe4 Nb7 Bc5 Ka3 Bd3 Bb2 Nd7 Bdf6 Bb6 Qb1 Nc5 Bbc3 Bfe4 Rf1 e1B Rf3 e2 Re3 Bf5 Re7 Bf2 Rd8 e1B Rd4 Rg8 a8R Rh2 Rc8 Ba7 Bd5 Rh5 Bf3 Rh1 Bd1 Qg7 Re3 Bd5 Re7 Kh7 g6+ Kh6 Qc1 Be3 Qb1 Qf8 g7 B1f2 g5+ Kg6 Bg4 Bfe4 Bd1 Kf5 g6 Rf1 Rb3 Bg1 Rbb4 Rh8 g8B Rh6 g7 Rg6 Bf7 Qh8 g8Q Qh6 Qd8 Re1 Be2 Rf1 Qb6 Rc1 Bf1 Kg4 Be2+ Kh3 Bd1 Rg5 Bg8 Bh7 Bf7 Rg6 Bg8 Bh1 Bc4 Bd5
1Nr5/2k3N1/Bp1NBB2/3rPbnN/1rbRn3/Q1b1Pp2/3B2Q1/2Kb2n1 w - - 0 1 legal: proof: f4 a5 c4 g5 a4 e5 fxe5 d5 cxd5 Ke7 h4 Qe8 b4 axb4 g4 Bg7 h5 Qc6 Ra3 Qe6 Rf3 Ke8 Rf4 gxf4 g5 Qg6 hxg6 Bf8 d4 Kd7 Kd2 f5 d6 c5 d5 h5 a5 b6 g7 f3 e3 f4 g6 f2 a6 b3 a7 b2 Ba6 f1B Qa4+ Nc6 Na3 b1R Nh3 h4 Nb5 c4 Ng5 h3 Qa3 h2 Ne6 Nf6 g8N Nd8 g7 c3+ Kc2 Nf7 Bd2 Rb4 Kc1 Bc4 Rd1 Rb8 a8Q h1B Qb7+ Ke8 Qa8 c2 Qb7 Ng5 d7+ Kf7 d8B+ Ke8 d6 Bf3 Qd5 Nfe4 Bf6 Bd7 Qc6 Rc8 Qb7 Rc5 Qd5 Bc8 Qa8 Rd5 d7+ Kf7 d8N+ Ke8 Nd6+ Kd7 Nc6 Be7 Ned4 Kc7 Nb8 Bfe2 N4f5 Bh5 Ng3 Bf5 Nh6 Rc8 g8B Bhe2 Be6 f3 Nh5 Bf8 Rh1 Bd1 Rh4 Rc5 Qd5 Be7 Qdd3 Rd5 Qe2 Bf8 Qg2 Be7 Ndf7 Bc5 Rf4 Bd4 Nd6 Bc3 Rg4 Bg6 Nhf5 Bh7 Nfg3 Bf5 Ng7 Nf2 N3h5 Ba1 Be1 Bd4 Kd2 c1N Re4 Ne2 Rf4 Ba1+ Rd4 Ng1 Kc1 Bc3 Bd2 Nfe4
Rr2b2b/2N1PPk1/1NpnQ1q1/r2p1Rp1/3R4/3K3N/1Q1BRn1N/2r1b3 w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 h5 gxh5 e6 a4 Nc6 axb5 Nb8 e4 Qh4 d4 Qg5 d6 Qd8 d5 exd5 e5 f6 Bd3 f5 Be4 fxe4 Kd2 Kf7 b4 a5 h4 g5 f4 e3+ Kd3 c6 h6 e2 h7 e1R d7 a4 h5 a3 e6+ Kg7 f5 a2 h6+ Kf6 b6 Qc7 d8R Qg7 e7 Kf7 b7 Bd7 b5 Re6 f6 Ra6 b6 Re4 Nd2 Re1 Qe2 Ra8 Nf1 Ra4 Qe6+ Kg6 f7+ Nf6 Nh3 Rd1+ Bd2 Rb1 Nh2 Re1 Rf1 Na6 b8N Nc7 b7 Ne8 Rf5 Rg1 Na6 Rc1 b8N Nd6 Nc7 Be8 Nd7 Ra5 Ra8 Rg8 Rb1 a1B h8Q Bc3 h7 Kh6 Rb2 Qg6 Rb4 Bg7 Nb6 Ng4 Rd4 Be5 Qhf6 Bg3 Qfe5 Be1 Qe2 Kg7 h8R Bd7 Rh4 Rb8 Qg2 Be8 Qf2 Nh6 Rhe4 Ng4 Re2 Kh7 Rde4 Bh8 Qd4 Kh6 Qb2 Kh7 Rd4 Kh6 Qe4 Kg7 Qe6 Nf2+
2RNK2R/b2b4/2nP1P1B/ppk1q1QN/3r2Q1/4N1n1/2rRqrp1/3NR3 w - - 0 1 legal: proof: c4 f5 e4 h5 exf5 d5 cxd5 Rh6 g4 Rh7 gxh5 Rh8 a4 Be6 a5 Bc8 b4 Qd6 b5 Qd8 b6 axb6 a6 Bd7 a7 Bc8 Ba6 bxa6 Ba3 b5 Bb2 Qd6 Bc1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 c5 Kg5 e5+ Kg6 c4 Kf7 g5 f4 c3 d4 e4 h4 e3 f6 c2 h6 g4 h5 g3 f5 e2 h7 e1Q h6 g2 Qg4 a5 Nc3 Qe5 Nh3 Qg3 Rd1 Qe5 Rd2 Ba6 Nd1 Nd7 Nf4 Rc8 a8N Nc5 Nh5 Rc6 Nc7 Kd7 d6 Ne7 Nd5 Ne4 N5e3 Rc4 d5 Rd4 Qg5 Rg8 h8R Ng3 h7 Bc8 Qg4 Rg6 Rg8 Qc7 h8R Qc4 Rb1 Qe2 Qg5 Kd8 d7 Kc7 d8N Kb6 Ke8 Kc5 f7 Rf6 d6 Be6 Qg4 Bh6 f8Q Nc6 Qfg7 Bf4 Q7g5 Rf7 Bb2 c1R Ra1 Rc2 f6 Rc7 Nf1 Be3 Bc1 Bf2 Nfe3 Rh7 Nf4 Rh1 Nh5 Bg1 Rg7 Bf2 Rc7 Rf1 Rc8 Bg1 Rb1 Rf2 Nc4 Qe1 Qg8 Re4 Ndb2 Rf1 Rf2 Kb4 Bh6 Qd2 Re2 Ba7 Q8g5 Rf2 Rbe1 Rd4 Nd1 Kc5 Nce3 Qd3 Rd2 Qe4 Nf5 Qe2 Nfe3 Bd7+
Bn2kb2/b1R3QQ/1P1Q4/R3r3/2b2K2/p3qn1r/NN1p1pRP/qRQ5 w - - 0 1 legal: proof: c4 c5 a4 e5 f4 h5 fxe5 b5 axb5 Nc6 d3 Nb8 Bd2 h4 Bc3 h3 d4 cxd4 gxh3 dxc3 h4 Ba3 h5 Bf8 Kf2 g5 Kg3 f5 b4 a5 e4 d5 c5 c2 c6 c1B c7 a4 h6 d4 b6 d3 b5 g4 e6 d2 e5 Qd6 h7 Ra5 b7 Bg7 b6 Bf8 e7 Nf6 Kf4 g3 Na3 g2 Nc4 Ng4 Nb2 Qd7 Ne2 g1Q Nc3 Qc5 Na2 Qcd5 Bg2 Q5e6 Re1 Rg8 h8Q Qd4+ Be4 Rg5 Qg7 Rh5 Rg1 a3 Rb1 Rh8 Rg2 Rh3 Qe1 Qc3 Qh4 Qeb3 Qhh7 Be6 Bf3 Bc4 c8R+ Kd7 Rc7+ Ke8 Nd3 Qa1 Nb2 Ne3 Be4 Nc2 Bd5 Ne1 Be4 Nc6 Bd5 Nf3 b8Q+ Nd8 Ba8 Qd3 Nd1 Bb2 Qc8 Bd4 Nb2 Qe2 Qe6 Nc6 Qd6 Nb8 Qg5 Na6 Ra7 Nh4 Qgg7 Bc5 Qd5 Bd6 Qd4 Bb8 Rc7 Ba7 Kg5 f4 Qd6 f3 Kf4 f2 Qg4 Qd3 Qd1 Bg7 Qc1 Kf7 e6+ Kf6 e8Q Nf3 Qed7 Nb8 e7+ Kf7 Qg4 Qe2 e8R+ Qe7 Rc6 Qe2 Re5 Rb5 Rh5 Ke8 Rc7 Bf8 Qgg7 Qe3+ Kg4 Rb3 Ra5 Rd3 Kf5 Rd5+ Kg4 Qd3 Kf4 Re5 Na4 Qb3 Nb2 Qe3+
4RB1Q/1rB2Pb1/1Q1K1k2/P1p2n2/Qq2p1Q1/R5r1/q1RN1r1p/1b1n3R w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 h4 a3 h5 g6 bxa3 Qd7 a4 Qd6 a5 Qd8 g4 Bh6 g5 Bg7 Be2 Be6 h6 Bc8 Bh5 Bf8 Nc3 gxh5 g6 Kd7 g7 Na6 Nce2 Ke8 Nf4 Nb8 Ng6 hxg6 Ke2 Kf7 Kd3 e5 Ke4 c5 d4 b5 f4 h4 a4 g5 f6 h3 d6 h2 Kd5 g4 d7 g3 a6 b4 a5 e4 a7 g2 f5 b3 h7 b2 Qa4 b1R Bf4 Ne7+ Kd6 Ba6 d5 Rf1 Ra3 Bd3 Nf3 g1Q Nd2 Rg8 h8Q Qf2 Bg3 Qc8 d8Q Nd7 Qb6 Rb8 a8R Bb1 Be5 Qa6 Bf4 Rb7 Re8 Qfe2 Nb3 Rb8 Kc7 Nc8 d6 Ne5 d7 Ne7 d8R Rf2 Rd2 Ng4 Bd6 Qec4 Rc2 Ne3 Nd2 Nd1 Kd7 Qa2 Bc7 Q6c4 Kd6 Qb4 Qh4 Rh8 Qg4 Kg8 f7+ Kh7 Nb3 Rb7 g8Q+ Kh6 Nd2 Bg7 f8B Rh7 f6 Nf5+ Kc6 Rh8 f7 Rh7 Qh3+ Kg5 Qh8 Kf6 Qf3 Rh3 Qg4 Nh6 Kd6 Rd3+ Kc6 Rg3 Kd6 Nf5+
k6B/n2P1NN1/p2N3Q/4Q3/2qQ1rR1/1p1Pn1KQ/Nq2p1r1/1b1Rn1b1 w - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b4 a5 a4 axb4 a5 Kd7 a6 Ke8 a7 Nc6 Bd3 Nb8 Ba6 bxa6 f4 Kd7 Kf2 c5 h4 Kc7 f6 Kb7 f5 g5 d6 e5 d7 g4 h6 c4 h5 c3 f7 b3 h7 c2 f6 e4 h6 e3+ Kg3 e2 Ra4 Bc5 f8Q Qb6 f7 Qd8 Nf3 Qe8 Nc3 Ne7 Nd4 Rg8 h8Q Nd5 h7 Nc6 Qe5 Ne3 h8N Qe6 Ndb5 Qc4 Bb2 c1Q Qh6 Rf8 Ba1 Qb2 Na2 Rb8 a8N Na7 Nac7 Bd4 Ne6 Ka8 Qhh5 Bb7 Qh3 Be4 Nd6 Bb1 Ng7 Rb4 d3 Rg8 Qg1 Bb6 Qf2 Bd4 Rd1 Bb6 Kh4 g3+ Qff4 g2 Qfd4 g1N Kg3 Nf3 f8Q+ Qc8 Qff4 Ne1 Nhf7 Qc4 Qfh6 Qc6 Qc3 Rf4 Re4 Qc4 Qcd4 Rf2 Rg4 Rf8 Nh8 R8f4 Nhf7 Rg2+ Kh4 Ba5 Qdd5+ Kb8 Nge8 N3c2 Qeg5 Qc1 Bh8 Qb2 Qge5 Bb6 Ng7 Bg1 Qde4 Ne3 Q4d4 Rh2 Kg3 Ka8 Qh7 Rhf2 Q7h6 Rg2+
N3k3/2Q2pRb/2r1q3/n1BRnBQ1/K1pp2B1/Qrb3r1/r1P1B1QP/8 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 b5 f4 e5 dxe5 g6 g5 Nh6 a4 axb4 axb5 Ng8 Nd2 Bg7 Nc4 Bh6 Ne3 Bg7 f5 Bf8 Ng4 hxg4 fxg6 Be7 Qd4 Bd6 Qd1 Bf8 Kd2 d5 e4 c5 g7 b3 Kc3 g3 b6 c4 e6 g2 e5 b2 g6 b1R b7 Qg5 e7 Bh3 Be2 Rb6 Ba3 Rh4 Nf3 g1R Qc1 Kd7 e8B+ Kd8 e6 Rc6 e7+ Kc7 Kb4 d4 Ne5 Rg3 Rg1 Bc8 Bd7 Kd6 e8B Ke7 Bf5 Rca6 Bed7 Nf6 g8Q Qf4 g7 Qg4 Bde6 Rf3 Nd7 Rg3 Nb6 Nfd7 Qe3 R8a7 Na8 Ke8+ Kb5 Rhh3 Bc5 Qe4 Ra5 Ne5 Ka4 Nbc6 Qa3 Rb3 b8Q Rhg3 Bfg4 Qd5 Bef5 Qe6 Qc7 Rab6 Ra6 Na5 Rg2 Bb7 Rg1 Be4 Rg2 Rb8 Rd6 R8b6 Rd5 Bd3 Qh8 Be4 g8Q Rc6 Qh5 Bd3 Qgg6 Bh6 Qh3 Bd2 Qg5 Bc3 Rg1 Re3 Rg3 Rf3 Qg2 Raa6 Rh3 Rg3 Rh7 Ra7 Rg7 Raa6 Bh3 Ra7 Bfg4 Bh7 Bf5 Raa6 Bhg4 Bb4 Qb2 Nb7+ Kb5 Ra2 Qa3 Bc3+ Ka4 Na5
1Q1Q4/1BN1Nprb/2QKp3/3Np2b/4B2n/1q1PnPR1/7N/r1rQ1r1k w - - 0 1 legal: proof: g4 b5 b4 h5 gxh5 c5 a4 e6 e3 Be7 Ba3 Bd6 axb5 Be5 b6 Bb2 b5 Bd4 Bb4 cxb4 exd4 d6 Ra3 Na6 Re3 Nb8 Re5 dxe5 Ke2 Kd7 Kd3 Kd6 Kc4 a5 h4 g5 h6 b3 h7 a4 h5 b2 d5 a3 h6 a2 b7 a1R d3 g4 b6 g3 Nf3 g2 Rg1 R8a5 Nh2 Qf8 Nc3 Nc6 b8Q+ Ke7 d6+ Kf6 d7 Kg5 d8Q+ Kf4 b7 b1B Be2 Qa3 Bf3 Ra7 Be4 Qb3+ Kc5 Nce7 Kd6 Ng6 Qb6 Ba2 Qc6 Rc1 f3 Kg3 Nd5 Nh4 c4 Ne7 c5 Rg8 h8N Rg7 h7 Nef5+ Kc7 Kh3 Ng6 Ne3 h8Q Bd7 Qhd8 Ra6 Rh1 g1R Nge7 Kg2 Kd6 Re1 Rf1 Bc8 Rf2+ Kh1 Rg2 Rf1 Rg3 Ra3 Qa4 Bd7 c6 Be8 c7 Bc6 Nb4 Bd5 Qc6 Ra8 c8B Ra3 Bg6 Be4 Nbd5 Bf5 Bh7 Bg4 Be4 Ra5 Qa8 Ra7 b8N Bh5 Bb7 Rg6 Bf5 Qc3 Nb6 Rg7 Na6 Bd5 Qab8 Be4 Nc7 Qb3 Nbd5 Raa1 Bh7 Bf5 Bg6 Bfg4 Be4 Bf5 Qde8 Bfg6 Qed8 Bh7
Q5B1/1r1R1B2/1n1R3q/2k2n1r/1p5B/2PKqrpq/p1PN1B2/RR3b1Q w - - 0 1 illegal: No possible last move
NK3Br1/3BQ1P1/1B2Q3/2n2n2/q2k2p1/1pq1NPrQ/2p1QbB1/r5qR w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 fxg5 d5 cxd5 f5 Qb3 f4 Kd1 f3 Kc2 f2 Kb2 Nf6 Qd1 Ng8 Kb3 Bh6 Kc2 Bf8 Kd3 h5 g4 Ra5 a4 Kd7 g6 Ke8 g5 Bg4 Ke3 Bf3 exf3 Ra8 Ke2 Ra5 Ra2 Bg7 Rc2 Bf8 Rc4 Ra8 Rg4 hxg4 Kd3 Kd7 Kd4 Kd6 h4 b5 g7 c6 g6 e6 a5 b3 a6 b2 h5 b4 a7 b3 h6 Qe7 h7 Qd8 Nh3 Qg5 Qe2 Qd8 Bg2 f1Q Nf2 Qg1 Na3 b1Q Nc4+ Kd7 Ke5 c5 d4 Qd1 d6 Kc6 d7 Qdc2 Nb6 c4 d5+ Kc5 d6 c3 Nd1 Nh6 g8Q Qe8 d8Q Nf5 g7 Na6 Qe7 Qa4 Ne3 Qcb2 Qgf7 Rg8 h8Q Q2a1 Qh3 c2+ Bb2 Qg1 Qff6 Qae1 Ba3+ Qeb4 Qd8 Be7 d7 Bf8 Qf7 Be7 Qde8 Bh4 d8B Bf2 Qed7 Rh8 Bc7 Rag8 a8B Rh5 Bc6 Rh7 Qh2 Rh3 Na8 Rg3 Qh3 Nd6 Kf6 e5 Ke6 e4 Qde7 Kd4 Kd7 Qc3 Bb6+ Nc5+ Kc7 Nf5 Bd7 Qc1 Nd5 e3 Qfe6 Q1a1 Qe1 e2 Ne3 Qc1 Qf1 e1R Qe2 Q1d2 Bb4 Ra1 Ba3 Qc1 Bb4 Qg1 Ba3 Nd6 Bb4 Ne8+ Kb8 Nd6+ Qd8 Nf5 Bc7 Ne4 Bf8 Qac6 Qde7 Nc5 Bb6 Qa4
2B4N/QpNn2B1/1bBq1q2/1p1Q3K/R1NP1q1n/P2p4/6Nr/1bk2B1n w - - 0 1 legal: proof: b4 e5 d4 h5 g4 d5 gxh5 e4 c4 a6 cxd5 Ke7 b5 axb5 a3 Ke8 f4 Be7 f5 Ra6 e3 Re6 fxe6 Bd7 Ra2 Kf8 Rd2 Bc8 Rd3 exd3 e4 Ke8 e5 Bf8 Bh3 Ke7 Kf2 c5 Kg3 f5 Kh4 g6 h6 f4 d6+ Ke8+ e7 Kf7 e6+ Kf6 e8B f3 d7 f2 h7 f1Q e7 c4 Ne2 c3 Qb3 c2 Nd2 Nh6 Nf4 Ng4 Qa4 Kf5 Qa7 Qb6 d8N Be6 Bd7 Qf3 e8B Bc5 Bg2 Qd6 Bc8 Nf2 Bc6 Nd7 h3 Bg8 Nde6 Bb6 Nc7 Ba2 Rh2 Bb1 Bf1 Nh1 Nc4 Ba5 Be3 c1Q Rb2 Bb6 Rb4 Qd2 Ra4 Qh2 Nfd5 Ke4 Bh6 Qff6+ Kg4 g5 h4 Qd2 h5 Q2h2 Bf8 Qd2 h6 Q2f4+ Kh5 g4 Bg7 Kf3 Nde3+ Kf2 Bh3 Ke1 Bf1 Rg8 Bf8 g3 h8N g2 h7 g1N Nf7 Rg4 Ng2+ Kd1 Bh6 Nf3 h8Q Qg7 Qe8 Qgf6 Qe5 Kc1 Nh8 Rg3 Qg5 Nh4 Qd5 Rh3 Bg7 Rh2
RQR1B1n1/2n3b1/5k2/1RqrpP1p/Rb2Qbp1/B2NPn2/5Q2/QKn5 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 h4 c6 h5 f4 Nc3 f3 Kd2 Ba6 e3 c5 Nce2 fxe2 f4 cxd4 f5 Bb7 f6 Be4 Rb1 Bg6 hxg6 Ra7 Ra1 Rc7 Rh3 Rc5 Rh1 Rf5 gxf5 Qc8 Bg2 Qc7 Bf1 Qd8 c4 e1B+ Kc2 h5 b4 d5 c5 g4 c6 a4 g7 Kf7 c7 a3 c8Q d3+ Kb1 d2 b6 d4 b5 d3 b7 Qb6 Nh3 Nd7 b8R Qc5 b6 Bg3 b7 Bf4 Ra8 Ne5 b8Q Nf3 Nf2 e5 Qa4 d1N Qcc6 d2 Nd3 Nf2 Qce4 d1N Ra2 Rh7 Rb2 Rh8 Rb5 Rh6 Qad4 Rg6 Qa1 Nc3+ Kc2 a2 Ba3 Nd5+ Kb2 Nge7 g8R Bg7 Rc8 Nc7 Qe1 a1B+ Kb1 Nd1 Qf2 Bc3 Be2 Nb2 Bd1 Nh2 Ba4 Bb4 Rc1 Rh6 Rc4 Nf3 Rd4 Rh8 Qa7 Rd8 Rc4 Kf8 f7 Ng8 Qa6 Ke7 f8Q+ Kd7 Qfd6+ Ke8 Qa7 Kf7 Qb8 Rd7 Qdd4 Kf6 Qc3 Rd5 Qcd4 Nd1 Qa1 Nb2 Rb6+ Qd6 Be8 Qc6 Rb5 Qc5 Ne1 Nd3 Rd4 Ba5 Ra4 Nc1 Nd3 Bb4
1r1b2b1/n1nNN1P1/4Qn2/N6p/3KP1r1/rp2Rnkp/QR1RB2N/1R6 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 g5 cxd5 e5 fxe5 Nf6 h5 Ng8 g4 Qd7 h6 Qa4 Bb2 Bg7 Bd4 Qd7 Bf2 Bf8 Bh4 gxh4 g5 Qc6 g6 Qa6 Na3 Qf6 Nb1 Qg7 hxg7 Ke7 Qb3 Kd8 Qd1 Ke8 Kf2 Kd7 Ke3 c5 d4 h5 a4 f5 e6+ Kd6 e7 b5 e8R b3 a5 h3 a6 b4 a7 b2 Ra2 c4 Qb3 c3 Nf3 c2 Nbd2 c1N Ne5 b1N Rb2 Nc3 Ndf3 Nb5 Nh2 Nc7 Nd7 Nf6 g8N Nd3 g7 Ne1 Ne7 Nc6 Qc4 Rb8 a8Q b3 Qa2 Nf3 Kd3 f4 e3 Na7 Be2 Rh6 Rhb1 Rg6 Kc3 Rg4 Kd3 Na8 Qca6+ Kc7 Qe6 Ba6+ Kc3 Bc4 d6+ Kb7 d5 Nc7 Ne5 Kb6 d7+ Kc5 d6 Bd5 N7g6 Be7 d8N Bc4 Ndc6 Bd8 d7 Bd5 Qg8 Kd6 Na5 Bf7 Re7 Kd5 Re6 Ke4 Re8 Kf5 Ne7+ Kg5 Kd3 Kh4 Kc3 Bd5 Qe6 Kg3 Kd3 Ne1+ Kd4 f3+ e4 f2 Rf8 f1R Rf7 Ng8 Rf5 Nf6 Rf3+ Kg2 Re3 Rf2 Qa6 Bg8 Qe6 Nf3+ Kc5 Rf1 Qa4 Rg3 Rc1 Rd1 Ra1 Rd4 Qa2 Ra4 Rab1 Ra3 Kc4 Rg4 Kc5 Nce8 Kc4 Bb6 d8R Kg3 Rdd2 Bd8 Nd7 Nc7 Kd3 Kg2 Kc3 Ne5 Kd4 Kf2 Bf3+ Kg3 Be2+ Nf3+
kb1B1rQn/8/1B1Q1nR1/KPpp1P1q/1R5R/1pr1N3/2pb1r2/B1R2B2 w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 h5 gxh5 c5 d4 Qb6 b4 Qd8 d5 Bb7 c4 Bc6 dxc6 bxc4 Nc3 a6 b5 a5 Nd5 Rh7 Nb4 axb4 Be3 Rh6 Bc1 Rh8 Kd2 e5 a4 g5 h4 d6 f4 g4 h6 e4 c7 Kd7 c8R g3 h5 e3+ Kc2 c3 Kb3 e2 h7 e1R f6 g2 a5 c2 Ka4 b3 f5 Nh6 f7 Qg5 a6 Qg6 a7 Qg7 Nf3 g1B Rc6 Ng8 h6 Nf6 Rh4 Ne4 Bg5 Be3 Rc1 Qf6 Nd2 Qg6 Bd8 Re2 Ka5 Nf6 Nc4 Qh5 Bb6 Rf2 Qd3 Rg8 h8B Rg3 h7 Be7 f8Q d5 Qg8 Bd6 Bg7 Rgf3 h8B Bd2+ Qc3 Rd3 Ne3 Bh2 Qb4 Rc3 Qf4 Bg3 Bf8 Bh2 Re6 Kc8 Be7+ Kb7 Qd6 Nbd7 Bed8 Nf8 Bg7 Rb8 a8R Ng6 Ra6 Nh8 Ree4 Nh7 Be5 Nf6 Rb4 Bg3 Bdc7 Rf8 Bd8 Rc4 Ba1 Rc3 Ra8 Be5 Rc8 Bh2 Rc7+ Kb8 Rg7+ Ka8 Rg6 Bg3 Qde6 Bc7 Qd6 Bb8
Q1N5/1QB3q1/B4r2/b2r3N/2P3nP/nQp1Rn1N/ppr1K1p1/2k1N2Q w - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 f5 exf5 d5 gxh5 d4 a3 Bd7 a4 cxb4 Ra2 b3 Rc2 b4 Rc3 Bb5 axb5 dxc3 d4 Kf7 f4 Kf6 d5 a5 d6 g5 d7 e5 b6 a4 h6 e4 b7 b2 h7 g4 Qb3 e3 Bh3 g3 Ke2 g2 Na3 b1N Nc2 a3 Ne1 Nc6 b8Q a2 Qb7 Qe7 d8Q Ra6 Qda8 Nh6 Bd2 Rg8 h8Q+ Qg7 Bg4 Rb6 Nh3 Ne5 Rf1 Na3 Rf3 Bd6 Qh7 Bc7 Qh8 Kf7 f6 Kg6 f7 Rf6 Bc8 Rd8 f8N+ Kh5 f5 Kg4 Nh7 Rd5 Bc1 Ba5 Bd2 Nd7 Bc1 Nc5 Bd2 Ne4 Bc1 Re6 f6 Nd2 Rg3+ Kf5 f7 Ke4 f8N Rf6 Ng6 Ng4 Ne7 Kd4 Qc6 Ke4 Ba6 Kd4 Nc8 Ke4 Qba4 b3 Qcb7 b2 Qab3 Kd4 Nf8 Ke4 Ng6 Kd4 Ngf4 Ke4 Nh5 Kd4 Kd1 Ke4 Nf3 Kd3 Qh6 e2+ Ke1 Nf1 Bf4 Nd2 Be5 Rd4 Bc7 Rd5 Q3b5 Kc2 Qb3+ Kc1 Qh8 Ne3 Kf2 e1R Qh7 Rg1 Ke2 Rd1 Ne1 Ng4 Qh8 Kb1 Rd3 Rc1 Re3 Rc2 Qf8 Rh6 Qf1 Kc1 Qh1 Re6 Ng1 Rc6 h4 Rf6 Nh3 Nf3+
3qQnrr/3N2Rp/PB2n1RQ/4p2Q/Q2r2pp/3RPR2/4Bn1K/1kb5 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 d5 bxa5 f6 c4 Be6 cxd5 Bf5 Nc3 Bb1 Nb5 Bc2 Nd4 Bg6 Ndf3 Bb1 h5 Be4 Nh4 gxh4 g5 Bg6 hxg6 fxg5 d4 Kd7 f4 Kd6 Kf2 b5 Kg2 c5 a4 b4 g7 b3 a6 b2 a7 b1N a5 c4 f5 c3 f6 c2 f7 e6 Nf3 Nd2 Rh3 Nf6 g8R Qd7 Rg6 Ng8 Ne5 Nb3 Rf3 Qc8 Kh2 Qd7 Be3 Be7 f8Q c1R Qh6 Qd8 Nd7 Rc4 a6 Nc5 Qa4 Bf6 Rd1 e5 Rd3 g4 Bf2 Ke7 d6+ Ke6 Qh5 Kd5 Qh6 Ke4 d5 Nb3 Bb6 Nd4 e3 Be7 Qh5 Nf6 Be2 Ne6 Rg7 Rd4 Qh6 Nc6 Qh5 Rc8 a8Q Nb8 Q8c6 Rg8 Nf8 Rh8 d7 Ba3 Rg6 Bc1 Qd6 Qc7 d8Q Nbd7 Qe8 Qd8 Rg7 Ndc5 Nd7 Nf8 Qde6 Ra8 d6 Rb8 Q6f7 Nce6 Qh6 Ra8 Qfh5 Rc8 Rc3 Rg8 Rc6 Rb8 Bd1 Kd3 Be2+ Kd2 Nc5 Rh8 d7 Ne4 Rd6 Nf2 Rc6 Qf6 d8R Kc3 Rdd6 Kb2 Nd7 Qd8 Rc3 Kb1 Rd3 Nf4 Rf6 N4e6 Rfg6 Qc7 Re7 Rb7 Nf6 Qc8 Rf7 Re7 Nd7 Qd8 R7f4 Rg7 Rf7 Rgg8 Re7 Nc7 Reg7 Nce6
2qkNQ2/p2b3n/rNQB3p/3n1p1R/NNKP3b/1PR1bnp1/8/1R4R1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 fxg4 axb5 d5 c4 e6 cxd5 Ke7 f5 Kd7 Bg2 Ke7 f6+ Ke8 h4 g5 Qb3 g3 Be4 g4 Qa4 Na6 Bf5 exf5 Qd1 Nh6 Rh2 Rg8 Rh1 Rg5 hxg5 Ng8 Qc2 Rb8 Qd1 Bd7 Nh3 Bg7 Rg1 Nh6 Rg2 Qe7 Na3 Kf7 Qc2 Rh8 Nb1 Bc8 Rg1 Ke8 Qd1 Bf8 Rh1 Qd8 Ng1 Ng8 d4 c5 Kd2 g2 Kd3 h6 e4 g3 g6 Kd7 e5 Qa5 f7 Be7 f8Q Nb8 d6 Na6 g7 Qa2 b6 Bb7 e6+ Kc6 d7 Qa4 d8N+ Kd6 Nc3 Nf6 g8R Nh5 Nc6 Qb3 Qc2 Nc7 Nb4 Bc8 b7 Nd5 b8R Kc7 Nh3 g1N Nf4 Bh4 e7 Nhf6 e8N+ Kd8 Rh3 Qa4 Kc4 Qc6 Na4 Nf3 Be3 Qc7 Rg1 Nh7 Rg6 Qb7 Rc6 Rg8 Qc1 Rg6 Qc3 Bf6 Rh5 Bh4 Rc7 Ra6 Qc1 Ndf6 Nfd5 Qc6 Rb5 Bd7 Ndb6 Nd5 Bf4 Qb7 Bd6 Qb8 b3 Qc8 Ra5 Qb8 Rc6 Qc8 Kb5 c4 Kc5 c3 Kc4 Ndf6 Re5 Nd5 Ree1 Ndf6 Qc2 Nd5 Qe4 c2 Rb1 c1B Rc5 Ndf6 Qc6 Bf4 Kb5 Nd5 Rc3 Bfg5 Kc4 Be3
5Qn1/R2q2bB/q3p1Bk/1PR1B1R1/1BN1p1K1/1r1np3/r1p2P2/3QR2r w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 h4 f5 hxg5 Qd6 c4 Qh6 b6 Qg6 b7 Qd6 b5 Qd8 Na3 Bd7 b6 Bb5 Nc2 f4 Ne3 fxe3 cxb5 Qc8 Rh5 Qd7 Rh1 Qd8 Ke2 Kf7 g4 Kg6 d4 a5 d5 h5 d6 a4 d7 c6 Ba3 h4 Nf3 h3 Ne5+ Kg7 g6 h2 g5 Qc8 d8R Nf6 Rd5 Qd7 Rc5 Nh7 Nc4 Nf6 Bb4 Na6 b8Q a3 b7 a2 Qd8 Rh3 b8B Ra7 Be5 Rf3 Rg1 h1R Bh3 Ra8 Bf5 Ra7 Re1 Rfh3 Bbc3 Nb4 Bd2 Nd3 Bb4 Kg8 g7 Ra3 Bg4 Kh7 g8R Bg7 g6+ Kh6 Bh5 Rg3 Rf8 Ng8 Rf5 Rf3 Rg5 Rb3 Qe8 Rf8 Qf7 Ra8 Qf8 Rh4 Kf1 e6 Kg2 Rh1 Kg3 Raa3 Kg4 Ra6 Rc1 a1Q Rc2 Raa3 Ra2 Ra8 Ra7 Qa6 Rc7 Qb6 Rb7 Ra2 Ra7 Qa6 Rd5 c5 Nd2 c4 Rc5 c3 Nc4 c2 Qd6 Bh8 g7 Qe8 Bg6 Ne7 g8B Qd7 B8h7 Ng8 Qf8+ Bg7
5Q2/2q3pk/n1qP2p1/r1NrRR1p/1Q3P2/b1Np4/rRK1R1n1/B1NN4 w - - 0 1 illegal: No possible last move, all moves rejected
2Q4b/4Nppb/qp5R/3KPbq1/2pQBQ1r/n1BRR2Q/2k2P2/1q3R2 w - - 0 1 illegal: Other
K2B3n/p3n3/3Rqr2/qN1B1ppQ/n1P4r/Q4RP1/1qR1Bp2/1RB4k w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 h4 e5 h5 g6 h6 Bg7 hxg7 Qg5 Ra3 Qe7 Ra1 Qd8 e4 Ke7 f4 Kd6 f5 Kc7 Nc3 Nh6 Nce2 Bb7 Nf4 exf4 e5 Be4 e6 Bd5 e7 Be6 fxe6 Ng8 Bd2 Kd6 Be3 Qf8 Bc1 Qd8 Ke2 Kd5 Kf3 h5 e8R d3 b4 h4 c4+ Ke5 g3 d5 e7 d2 b6 d4 b7 g5 b5 h3 b6 h2 Be2 d3 Qb3 d1Q Ra2 d2 Rc2 Qe1 Rf8 d1N e8Q+ Ne7 g8B Nc3 Qa3 Nc6 b8R Na4 b7 Qda5 Rd8 Rh4 Rd6 Nd8 b8B f6 Bc7 Nf7 Bb6 Nh8 Bd5 Rc8 Qf7 Rc6 Qh5 Qeb4 Bd8 Qb2 Bd1 Ra6 Ne2 Rb6 Nd4 Rc6 Ke2 f3+ Kd3 f2 Be2 Rb6 Rg1 h1Q Nb5 Qh3 Re6+ Kf5 Be3 Nc6 Rb1 Ne7 Bf4 Nc3 Kd4 Qg4 Kc5 Qh3 Rc6 Na4+ Kd6 Qg4 Kc7 Qh3 Be6+ Ke4 Bc1 Ra6+ Kb8 Qg4 Bd3+ Kf3 Be2+ Kg2 Ka8 Kh1 Bd5+ Qe4 Re6 Rc6 Re5 Ra6 Rf5 Rb6 Rf3 f5 Rf7 Rg6 Rf6 Qee5 Ra6 Rf6 Rd6 Qe6
NQ5b/1N1R1BQr/1pB2K2/2n3Bb/P3pp1r/1p4NB/kp2P3/3nnN2 w - - 0 1 legal: proof: g4 c5 c4 g5 b4 cxb4 f4 d5 fxg5 a5 cxd5 Kd7 h4 Qe8 a4 Kd8 h5 Ra6 g6 Ra8 g5 Qc6 Ra3 Ke8 Rd3 Qb6 g7 Qg6 Rd4 b3 Rb4 axb4 hxg6 Bf5 Nc3 Be6 Nb1 Bc8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 d6 h5 d7 h4 d8N b2 d5 e6 d6 b3 d7 b6 Bh3 Rh6 Nb7 Bb4 d8N Bc5 Nd2+ Kb4 Nf1 Ka3 Nf3 Nf6 g8B Na6 g7 Rh7 g6 Nh5 Bf7 Ka2 g8B Nf4 g7 Nd3+ Kf6 e5 Bg5 f4 N3h2 e4 Ne6 Ne1 Nc7 Bg4 Ng3 Bh5 Qd6 Bd4+ Qe5 Rc8 Na8 Nc5 Nhf1 Rb8 Bd5 Rf8+ Bgf7 Rfh8 g8Q Bc3 Bf5 h3 Qg7 h2 Bh3 Bd4 Rg1 h1N Bc6 Nf2 Rg2 Be3 Qb8 Nd1 Rf2 Bd2 Rf3 Bb4 Rd3 Bc3+ Rd4 Rh6+ Kf5 R8h7 Rd7 Bf6 Qg6 Bh8 Qg7 Bg4+ Ke5 Rh4 Kf6 Bh5
Q2BQ3/KP1B2k1/2B2qr1/n1R1p3/nQ2P1N1/1q2bB1N/b1b4r/1n1r1Qq1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h5 g4 Rh7 g6 Rh8 b4 Bh6 g5 Bf8 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 Kf2 a5 c4 d5 h4 f5 e4 d3 Ke3 g3 Kd4 a4 Kc5 f4 h5 d4 h6 f3 g7 Kf7 b6 d2 h7 d3 b7 f2 b5 a3 g6+ Kf6 b6 a2 Be2 f1N Rh5 a1R Nc3 g2 Bf3 R1a3 Nh3 Nc6 b8Q g1Q+ Kb5 e6 c5 Nge7 g8B Bh6 g7 Na5 c6 Nd5 c7 Be3 b7 Ra6 Qa8 Nb6 Rc5 e5 Nd5+ Kg6 Nf6 Na4 Bd5 Be6 c8B Ra1 Bc6 Ba2 Ng4 Qf6 B8d7 Rb1+ Qb3 d1B Qb4 d2 Qf8 Bc2 g8Q+ Qg7 Qa8 d1Q Qc4 Nd2 Qf1 Qf6 Ba3 Ra1 Bc1 Nb1 Ba3 Re8 h8Q Rf8 Qh5+ Kg7 Qhe8 Rh8 Bc1 Qd5 Ba3 Qb3 Bc1 Bd4 Bg5 Be3 Bh4 Qfe6 Bd8 Qf6 Bd5 Rd6 B5c6 Rh6 Ka6 Rd2 Rd5 Rg6 Rc5 Rh2 Ka7 Na3 Qb6 Rd1 Qb4 Nb1
2Q1Q2K/1R3Pb1/kp5Q/1n1n1R2/nPqB3b/R1nr2Nb/2N3qn/1rR1Q3 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 a4 c4 d5 cxd5 gxh4 Bc4 Bh6 Bb3 axb3 Qe2 Bg7 Qd1 Bf8 Ke2 Kd7 Ke3 e5 Ke4 h5 g4 c5 d4 Kc7 a4 Kb6 f4 b2 g5 h3 a5+ Kb5 f6 c4 d6 h2 a6 c3 d5 c2 a7 b6 f5 h4 f7 h3 g6 Qc7 g7 Na6 d7 Ne7 d6 Nd5 f6 Qc4+ Kf5 e4 Kg6 e3 g8R e2 d8Q e1B d7 Bh4 Ra3 Nc5 Qe8 Na4 d8R+ Ka6 Be3 c1N Rg7 Na2 Qe1 Nac3 Bd4 Nb5 Ne2 Be6 Rf1 h1Q Ng3 h2 Rc8 Bh3 Rf5 Qg2 Rc7 Rg8 Kh7 h1N Rc6 Rd8 a8Q+ Na7 Rc5 Nf2 Qac6 Nb5 Qc8+ Ka7 Rc6 Ng4 Rc5 Nh2 Rc6 Bd6 f8Q+ Rd7 Rf7 Rg6 Qg7 Bf8 Kh8 Rg5 Qh6 Rh5 Nd2 b1N Ndf1 N1c3 Ne3 Rg5 Nc2 Rh5 Qcd8 Ka6 Re7 Rg5 f7 Rg4 Rc7 Rf4 Rb7 Rf1 Qc8 Rh1 Qe4 Rb1 Qe1 Rd6 Re4 Re6 Re2 Re3 Rd2 Rf3 Rd1 Rd3 Rc1 Bg7+
1nkbQK2/nq2P1R1/7B/nNN1QnQQ/2pnRN2/3nn3/r1P3b1/N1r5 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 Kd2 c5 Kc3 d5 b4 Kd7 e4 a5 f4 g5 h4 c4 Kd4 a4 h5 a3 f5 a2 b6 g3 f6 g4 h6 Qe7 b5 Kd8 e6 Ra5 Ke5 d4 h7 d3 f7 d2 b7 Qb4 e7+ Kd7 e8N Be7 f8Q Kd8 Ne2 g1N Qf4 g2 Qg5 g3 Rh4 Bh3 Nd6 Nh6 Nf4 Nf5 Ke6 Nf3 Kf7 g1N b6 g2 e5 Ne1 e6 Ne2 Nb5 Nc3 Qdh5 d1N Nd2 g1N Nb3 Bg2 Rb1 Rg8 h8Q a1N Qe5 Nde3 Rg4 Bf6 Bd2 Nd3 Re1 Ra2 Rg3 Na6 b8N Nge2 b7 Ned4 Nd7 Nb8 Ndc5 Rg7+ Kf8 Re7 Nd6 Ncb5 Re2 Na7 Nb5 Nf1 Re4 N1e3 Qgh4 Rh7 Rg7 Rh6 Q5g5 Rh7 Qhg4 Rh1 Qe2 Rc1 Qeh5 Qa4 Kg8 Qa6 Kf8 Nbc6 b8Q+ Qc8 Qb7 Nb8 Qbf7 Qb7 Qe7+ Kc8 Qee8+ Bd8 e7 Rg1 Na5 Nab3 Bc1 Nd2 Nab3 Rh1 Na1 N2b3 Bd2 Na5 Qgg6 Ng4 Nfe6 Rg1 Bh6 Re1 Nf4 Nge3 Qgg5 Rc1
Rb3B1n/P2RnR2/1Qb2p2/b3nPr1/2Q1B1Nn/2r1q2R/KqB1B3/3r2k1 w - - 0 1 legal: proof: d4 a5 c4 d5 b4 axb4 h4 g5 hxg5 e6 Nc3 Ra5 cxd5 Ra7 d6 Ra8 d5 e5 Nb5 Bd7 Nd4 exd4 Qd3 Bg4 Qd1 Bc8 Kd2 Kd7 Kc2 c5 Kb1 b5 e4 h5 a4 h4 f4 h3 g4 d3 f5 b3 g6 h2 e5 d2 g5 b4 a5 c4 a6 f6 g7 c3 g6 b2 a7 c2+ Ka2 b1N Qg4 d1R Qc4 b3+ Kb2 Bb7 Qc5 Rh5 Ba6 Rg5 Ra3 Qe7 Nf3 Nc6 Rg1 h1N Qc4 Rc8 Nh2 Ng3 Ng4 Ne4 Rh1 Qe6 Rh7 Nge7 g8B Nbd2 Rf7 Nf3 g7 Nh4 Be3 Ba8 Bc5 c1B+ Kb1 b2 Rh3 Bd2+ Ka2 Ba5 Bb5 Kd8 d7 Kc7 d8R Nd6 Ba3 Kb7 Rd7+ Kb6 Ba4 Bb7 Bc2 Ba8 Bh7 Rc7 g8R Bh6 Bg6 Bb7 Rfg7 Nf7 d6 Nh8 Rf7 Rc8 Bh5 Bf8 Bb4 b1Q+ Ka3 Qc1+ Ka2 Qe3 Be4 Qd5 e6 Qdd4 Bc2 Ne5 Be4 Rc5 Ba3 Bh6 Ra8 Bc6 Bb4 Rb5 Ba3 Rb3 Bc2 Rc3 Bb4 N7g6 e7 Bf8 e8B Ne7 Rc7 Qdd2 d7 Bh6 d8Q Qh2 Qcd4+ Kb5 Qb6+ Kc4 Rd7 Qhd2 Qc8 Qdd4 Ba4 Kd3 Bc2+ Ke2 Bd6 Kf1 Ba3 Nd5 Bf8 Kg1 Qca6 Qdd2 Qc4 Qdf2 Nh2 Ne7 Be2 Rg2 Ng4 Bf4 Rg7 Bg3 Bf7 Bh2 Bd5 Bf4 Bde4 Rg3 Nh6 Rg5 Ng4 N7g6 Ba4 Ne7 Rf7 N5g6 Bb3 Bb8 Ba4 Qd2+ Qb2 Qfe3 Bb3 Qc1 Bbc2 Ne5 Qb6 Qb2+
1k4q1/2rrp2R/bP1QPQ1n/B3K1bb/nN4B1/3nbN2/1BB5/1Q1b1b1Q w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h5 g4 Rh7 g6 Rh8 b4 Bh6 g5 Bf8 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 Kf2 d5 Kg3 Kd7 Kf4 Kc7 c4 f5 e4 a5 h4 g3 c5 g2 e5 d3 b6+ Kb7 h5 d2 h6 d4 b5 a4 g7 a3 g6 a2 h7 a1N Bb2 d3 Nf3 g1B Na3 Nb3 Qb1 d1B Nc2 d2 Nb4 Qd6 Bd3 Nd7 c6+ Kb8 b7 Nb6 Bc2 Nh6 g8Q Nc1 g7 Qe6 Qf7 Na4 g8Q Ra7 Qg3 Qg6 Qh4 Qg8 Qff6 Be2 Qe1 d1B Rh4 Bf2 Qh1 Bd4 e6 Be3+ Ke5 f4 Rh2 Qg6 Rh5 Rg8 h8B Bg7 Bc3 Rd8 Bb2 Rd7 Rh3 Nf5 Rh7 Bh6 Bc3 Bg5 Be1 Kc7 Bd2 Nh6 b8Q+ Kd8 b6 Qg8 Qd6 Bca6 c7+ Kc8 Bc3 Kb7 c8B+ Ka8 Qa1 Rac7 Bb7+ Kb8 Qb1 Nd3+ Ke4 Bd2 Kd4 Bc1 Be4 Bd2 Bf5 Be3+ Kd5 Qg7 Bg4 Qg8 Ng1 f3 Bg7 f2 Nf3 Nc1 Ke5 f1B Nc6+ Ka8 Ba5 Kb7 Nb4 Kb8 Bh8 Nd3+ Ke4 Qf7 Ne1 Ng8 Qfa1 Bef4 Bh3 Bg4 Nf3 Bh5 Bg4 Nh6 Qg7 Bh2 Qg6 Bg1 Bb2 Bc5 Qf6 Qg8 Kd5 Bce3 Ke4 Nf2+ Ke5 Nd3+
2b1rrK1/2N1p1NP/n3QQ2/N7/1qrR1N1r/rBbBP3/n7/1B1r1bBk w - - 0 1 illegal: No possible last move, all moves rejected
n1r2Rr1/N7/k1bK1N1P/nb1p2NQ/q1n1QN1Q/1b4Qn/2RP4/2b1bB2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ba3 Qb6 axb5 Qf6 b6 Qg5 b5 Qd8 Bb4 cxb4 Kf2 g5 Kf3 a5 Ke4 f5+ Kd5 g4 e4 b3 c4 g3 h4 a4 h6 b2 h5 g2 c5 a3 b7 f3 b6 a2 e5 f4 h7 f2 h6 f3 e6 Bd6 e7 Na6 b8N Bb7+ c6 Nc7+ Kc4 Bg3 Kc5 d5 Rh3 Qd7 Nc3 b1B Rh1 Bc2 Rh5 Bb3 Rc1 a1B Rg5 Bb2 Rc2 Bc1 Nge2 g1N Nf4 Nh3 Ne4 Qg4 Nd7 Rc8 Rf5 Na8 c7 Bc6 b7 Bh4 Be2 f1N b8Q f2 Kd6 Ne3 Ng5 f1B Rf7 Be1 Rf6 Rd8 c8N Qh4 Na7 Rc8 Ba6 Bfb5 Qf3 Qg4 Qe4 Nc4+ Kc5 Na5 Kd6 Qh4 Rf5 Nf6 Qc7 Rg8 h8Q Ng4 Qhd4 Ne5 Qf2 B5a4 Bf1 Qg4 Qh4 Bab5 Qb6 Qd1 Qbe3 Qg4 Qeg3 Qd1 Nf8 Qg4 Nfh7 Nec4+ Kc5 Kd7 e8Q+ Kc7 Rf8 Kb7 Nf6 Ka6 Qeh5 Ne3 Kd6 Qd1 Rc3 Qc2 Rc4 Qa2 Rc3 Qa4 Rc2 Nec4+
1nb2rR1/3p1P1n/NB1rB1rB/4Q1QN/1Q5r/1q1P1B1n/k2bQ1rK/2n5 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 f4 Kf7 Kf2 h5 c4 e5 g4 a5 Kg2 e4 f6 Ke6 f5+ Ke5 g5 Kd4 c5 e3 b7 b3 d3 a4 g6 h3+ Kh2 b2 b6 e2 c6 e1R c7 a3 f7 a2 g7 a1N f6 h4 Na3 Kc3 Qe2 Kb3 Bg2 b1R Nc2 Ra6 Bh6 Bb4 f8B Rb2 Bc5 Bd2 Bf3 Ka2 f7 Nf6 g8Q Rd1 Qg5 Rf8 Bd5+ Nb3 Be6 Nh7 Nb4+ Ka1 Bd4 Nc1 Be3 Rf1 Bd4 Rf6 Be3 Nc6 b8Q Rg6 b7 Qf6 Bb6 Qc3 Qgg4 Qb3 Qg5 Ra8 Na6 Ka2 Qe4 Rc2 Ne2 Ra7 Ng3 Rb2 Nc5 Ra6 Rg1 Rc2 Qe2 Rb2 Kh1 h2 Nh5 Rc2 Kg2 h1N Kh2 h3 Rg2 Nf2 Rg3 Ra4 Na6 Rd4 Qd5 Rf6 Rg8 Rg6 Qde5 Rb2 Qa7 Rc2 b8Q Rd6 Qbb7 Nb8 Qg2 Rg5 Qab7 Rg6 Qgg5 Rb2 Qbe4 Rc2 Qb4 Rb2 Kg3 h2 Kg2 h1R Kg3 Nh3 Kg2 Rg1+ Kh2 Bb7 c8B Rg4 Bg1 Rh4 Bb6 Bd5 Bb7 Bc4 Nc7 Ba6 Bf3 Bc8 Na6 Rc2 Qgf5 Rcc4 Qff6 Rcg4 Qfg5 Rg2+
1b1r4/1r1Npq1Q/Q1K2RQ1/3B3q/RRn1n1p1/2rkP1PN/2q5/bQ4nR w - - 1 2 illegal: No extended proof kernel
bqnnN1N1/Q4Nbp/1b1r1PR1/4Qq2/8/2nRpk2/1Rr2BNP/2r1R2K w - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 cxd5 g6 a4 Nf6 axb5 Ng8 Be2 Qd6 Bg4 fxe4 f5 Qd7 f6 Qd8 Bf5 gxf5 Kf1 Kd7 d4 Kd6 g4 c5 Kg2 a5 b4 e5 g5 f4 b6 e3 g6 a4 b5 e4 g7 a3 b7 a2 b6 e2 Qd2 e1B Qf2 c4 Nh3 c3 Nd2 c2 Rg1 f3+ Kh1 Nc6 b8R Ra6 b7 Nge7 g8N Bg7 Nf4 Qf8 Rg4 Nd8 Ng2 Be6 Rb1 a1R Rg6 Nc8 Bb2 c1N Nc4+ Kc7 d6+ Kc6 d7 Kd5 Qe3 f2 Nd6 Ne2 Ne8 Ba5 Re1 Rd6 Qa3 Bb6 Qa7 Nc3 Ba3 Rc1 Bc5 Kc4 d5 f1Q+ Bg1 Qf5 Bf2 Rc6 d6 Kd3 Rg1 e3 Re1 Nf7 d8R Ke4 d7 Bd5 Ra8 Rc5 b8Q Kf3 Qe5 Qd6 Rb8 Ba8 Rb7 Rc6 Qa3 Qb8 Qa7 Ba5 Rb2 Rd6 Bg3 Bb6 Bf2 Ne7 Rc8 Rc2 d8N Rc1 Rc5 Nc8 Rd5 Rc2 Rd3 Rc1 Ne6 Nd8 Ng5+ Kg4 Nf7+ Kf3 Ne7 Rf8 Nh6 Rf7 Neg8 Rc7 Nf7 Ne2 Qe7 R7c2 Qe5 Nc3
1q4R1/QNpn2B1/b1P2R2/1rr2bRB/3P3R/1k2BpK1/1nbb2Bn/2Q1b3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 e4 b4 Nc3 b3 axb3 d6 b4 exf4 e5 d5 Ne4 dxe4 b5 Be7 Rh2 Bb4 Rh1 Bf8 Kf2 Ke7 b4 Ke6 d4 Kd5 g4 a5 b6 f5 g6 h5 b7 f3 b5 h4 g7 f4 e6 h3 e7 a4 e8B a3 b6 a2 g5 h2 g6 Nf6 g8R Bb4 g7 Nbd7 b8Q Bd2 b7 Rh5 Bg2 Kc4 Nh3 Rc5 Bh5 Raa5 Qa7 Rab5 b8B Qf8 Rb1 a1N Ng5 Nb3 Ne6 Na5 Nd8 Kc3 Rb4 Nc4 Nb7 Nb2 Ra4 Qe8 Ra6 Kb4 c4 e3+ Kf1 Ng4 Rf6 f2 Qe1 Rc6 c5 Kb3 Ke2 f1B+ Kf3 Bd3 Qg1 e2 Qe1 Rcb6 c6 Rc5 Qf1 Ba6 Qg1 Bb4 Be3 Rbb5 Qc1 Qf8 Rh8 Ba5 g8R Bd2 Rg1 h1B Rg5 Nh2+ Kf2 f3 Kg3 Qd8 Rhg8 Qf8 Rg4 Qd8 Rh4 Qf8 Bf1 Bg2 Rg5 Bh3 Bg2 Be6 Rg8 Nb6 Qa8 Ba5 Kf2 Bf7 Bh3 Bd2 Ba7 Rc3 R1g5 Bg6 Kg3 Bc2 Bg2 B8f5 Qb8 Nd7 Bc5 Qe8 Bf8 Rcc5 Qa7 Qb8 Bg7 e1B+
b4Q2/b5K1/kBpnBrQR/2bQ1Q1N/2r5/2p2bP1/2P1RB1q/rB1b3n w - - 0 1 legal: proof: f4 b5 h4 d5 a4 g5 axb5 e5 hxg5 exf4 Na3 Nd7 Nc4 dxc4 Rh6 Nb8 Rh5 Nc6 Rh1 Nb8 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 a5 b4 a4 e4 f3 d4 f2 g3 a3 b6 Kc6 d5+ Kb7 d6 h4 g6 h3 d7 f4 b5 c6 g7 h2 Ne2 f3 Qd5 a2 Be3 Na6 Nf4 Qh4 d8B Nb4 Nh5 Bc5 Re1 Nf6 g8B Ne8 Be6 Nd6 Re2 a1B+ Bd4 Qh3 Kf6 Nd3 e5 Rh7 Bg2 f1R Bf2 Bad4 Kg6 Rh8 Kg7 c3 Bc7 Raa1 Bd8 Kb8 b7 Ka7 b6+ Ka6 b8Q Bb7 Qc8 Rf8 Qd7 Ba8 b7 Rf6 b8Q Ra4 Qf7 Rfa1 Bb6 Rc4 Qbf8 Qh4 Qg6 Be3 Qf5 Bed4 Rg1 h1B Bh3 Bg2 Rh1 Be3 Bg4 Qh2 Bf7 Bed4 e6 Be3 e7 Bed4 Be3 f2 e8Q f1B Bf2 Bf3 Qee4 Be3 Qg6 Bh3 Bge6 Bhg4 Qef5 Bed4 Ba5 Ba7 Bb6 Bc5 Nf4 Qg1 Rh6 Qh1 Nh5 Qh2 Re4 Bd1 Re2 Bf3 Bc8+ Kb5 Qde5 Ne4 Bg1 Rb4 Ba2 Nd6 Qd5 Rc4 Bb1 Nf2 Be6 Nh1 Bf2 Ka6
RbQN2BK/n2r1Q2/Q1pP4/R2b4/1q1b2Nk/n1Rrrp2/1bQ2P2/2Rn4 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 a4 h5 axb5 hxg4 Be3 Kd7 cxd5 Nh6 d6 Ke8 d5 Ng8 Bd4 exd4 Kd2 a5 Kd3 g5 Ke4 f5+ Ke5 Kf7 e4 Kg6 h4 Kh5 b4 c6 b6 a4 b7 a3 b5 f4 d7 d3 b6 d2 Nc3 a2 Nf3 g3 Bc4 g4 Ng5 f3 Qc2 d1R Nf7 Rd3 Nd1 g2 Ne3 g3 Rhc1 g1B Ng4 Na6 b8R g2 b7 Qa5 d8R Ra7 Ra8 Be6 b8Q Nb4 Qb5 Bc5 Qa6 Ne7 Kf6 Bd4+ e5 Nc8 Kg7 Re8 Kh7 Ree7 Kh8 Rad7 Re8 Na7 Nd8 Bh2 Bb3 Kg6 h5+ Kg5 h6 g1N h7 Ne2 Bc4 Nc3 Bb3 Nd1 d6 Kh4 Bc4 Bd5 Bb3 Bb6 e6 Bc7 Bc4 Bb8 Bb3 Rg7 e7 Be5 Bc4 Bd4 Bb3 Be4 Bg8 Bd5 Rf8 Bf7 e8Q Bd5 Rf5 Rge7+ Re5 Re6 Qf7 Qb6 Rab1 a1B Rb3 Bab2 Rc3 Re8 Qd2 Nc2 Qe2 Na3 Qc2 Be3 Rg5 Qb4 Rf5 Bb3 Ra5 Ree7 Kg7 Bd5 h8Q+ Kg5 Qh3 Re4 Kh8 Bd4+ Nf6 Re2 Qhe6 Re5 Ng4 Kh4 Qef5 Rde7 Qfc8 Rd7 Qg6 Re4+ Qg7 Re5 Qf7 Ree3+
1Nk5/KR6/Npb1r3/1PrN1Rnn/1q2Rp2/1b2QBP1/2rr1b1Q/1N2R2n w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 e5 c4 exf4 cxd5 Nc6 b5 Nb8 Ba3 Nd7 Bc5 Nb8 Bb4 axb4 Nc3 Kd7 Kf2 h5 a4 f5 e4 c5 d4 c4 a5 b3 g3 h4 g6 f3 Ke3 b2 d6 b1B d5 f2 Kd4 f4 Kc5 h3 a6 h2 a7 Bh6 g7 Ba2 e5 Qe8 Kb6 Bb3 e6+ Kd8 e7+ Kd7 Qe1 Ba2 Nf3 Nf6 g8Q Nc6 Be2 f1R Nd2 Nd4 Bf3 Bg7 Ndb1 Rh6 Qh7 Qf8 e8R Bb3 Re4 Ne6 Qf2 Rc1 Rhe1 Kd8 d7 h1N Qe2 Rg6 Qhh2 Nh5 Ra2 Rb8 a8N Qb4 Nc7 Rh6 Rc2 Ng5+ Ka7 b6 Na6 Bd4 Rd2 Bf2 Qe3 Re6 Rc2 Ke7 d8R Bb7 Rf8 Kd7 d6 Rd8 Rf5 Kc8 Rd2 Bc6 Rdd5 Be8 Rf7 Bd7 Rdf5 Be8 Rb7 Rd7 Nd5 c3 Ndc7 c2 Nd5 Rc7 Nd2 Rd1 Nb1 c1R d7+ Kd8 Rg1 Rd2 Re1 R1c2 Nf6 Ke7 d8N Kd6 Nd5 Kd7 Nc6 Kc8 Ncb8 R7c5 Rc4 Bd7 Re4 Bc6
5Q2/kP2q3/r1Br4/4R1n1/2Rrpp1n/K1R1P1b1/RNb1N1Nr/r1q2Q1N w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 h6 g5 Bb7 b3 Qd7 g6 Qd6 Bb2 Bc8 Bf6 Qd8 Bg5 hxg5 h4 Kd7 d4 c5 Kd2 Kc7 Kc3 Kb7 Kb2 e5 b6 a5 d6 f5 h5 e4 g7 f3 d5 a4 h6 f4 b4 c4 b5 c3+ Ka3 f2 e3 g4 h7 c2 Nd2 c1R Ra2 g3 Rh5 g2 Re5 Qd7 Ne2 g1R Nc4 Qh3 Nb2 Ne7 g8N Be6 d7 Qh4 d8R Nd7 d6 Bb3 Nf6 Rc6 Nh5 Nf6 d7 Ra6 Nhg3 Bc2 Rc8 Rd6 d8Q Nf5 Nh1 Be7 Rc3 Rgg8 Bh3 f1Q Qf8 Qfe1 Qd3 Qc1 Qd1 Rg2 Qf1 Rh2 Bg4 Rg8 h8N Nh7 Ng6 Ng5 Rc4 Qh7 Nh4 Rh8 Ng2 Nh4 Bd7 Bf6 Rc3 Qe7 Be8 Ka8 b7+ Ka7 b8R Rh7 Kb4 a3 Rbc8 Rh6 R8c4 Rd4+ Rc5 Rad6 Bc6 Rg6 Re5 Rh6 Ra1 a2 b6+ Ka6 Rb1 a1R b7 Kb6 Na4+ Ka7 Rb2 Bh8 Ra2 Rhe6 Bd7 Bf6 Nb2+ Ra6+ Rc5 Red6 Bc6 Qf7 Re5 Bd8 Ba4 Qe7 Ka3 Ba5 Rd3 Be1 Rdc3 Rab6 Bd7 Bg3 Bc6 Ra6+
1RRQNq2/Q1brB2k/2n4p/R2r2bp/7P/1Pqn3N/b2R3Q/1b1K1Q1q w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 g6 e3 Kd7 Be2 Ke8 Bh5 gxh5 h4 f5 g4 Kf7 d4 Kg7 g5 a5 e4 c5 d6 c4 d7 h6 g6 c3 e5 a4 d5 f3 b6 f2+ Ke2 f4 d6 c2 b7 a3 e6 a2 e7 Na6 b8R Nc5 e8Q Ra5 Qe3 Nd3 Nd2 Ne7 Rh2 Rd5 Nc4 Nc6 Nh3 Rh7 Qa7 f1Q+ Kd2 f3 b3 f2 Ba3 Qh1 Qf1 c1B+ Kd1 Bg5 Bb4 Qe7 d8Q Bf5 d7 Qf6 Qdc7 Bd6 Ba3 Qf8 d8Q+ Kg8 Rc8 Rd7 g7 Kh7 g8R Bdf4 Qcb8 Bc7 Be7 Bg6 Nd6 Bf5 Rb1 a1Q Ne8 Qc3 Ra1 Be4 Ra5 Bg6 Qg1 f1B Rd2 Bg2 Qf1 B2e4 Qba8 Nc1 Qag1 Bb1 Qh2 Ba2 Qa7 Bgb1 Rg6 Ne5 Rb6 Nc6 Rbb8 Nd3
BB3R1q/pKr1n1b1/6n1/P1Qb1P2/1N1qB2N/1BQN1b1r/n2p1b2/1k2N3 w - - 0 1 legal: proof: d4 c5 g4 f5 a4 fxg4 b4 h5 bxc5 e5 Ra3 h4 Rg3 hxg3 dxe5 Rh6 Nf3 Rh4 Ng1 Rh8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 b5 h4 g5 c4 d6 e4+ Kg6 f4 g2 h5+ Kg7 e6 Kf6 h6 b4 f5 g3 e7 g4 e8B b3 e5+ Ke7 c6 b2 c7 Rh7 e6 Kf6 a5 Nd7 Kc6 Ke5 e7 Ke4 c5 d5 Bf7 d4 e8B d3 Qe1+ Kd4 Nh3 g1B Bg2 Bf2 Bb3 Bg7 Nf4 Nf8 Be4 g2 Nd2 Be6 c8N Kc3 Nb6 g1Q Kb7 b1B c6 g3 c7 g2 B8c6 Ne7 c8Q Bd5 Qe3 Qh2 Nf3 g1N Ne1 Ne2 Qh3 Rh8 h7 Nfg6 Ba3 Bc2 Bd6 Kb2 Bb8 d2 Qc3+ Kb1 Nfd3 Nc1 Qc7 Qh3 Qd6 Qg4 Qdc5 Bd1 Rh2 Bf3 Rh3 Be6 Nd5 Na2 N5b4 Qd4 Rh2 Qh3 Bcd5 Rc8 h8N Rc6 Rh1 Ne5 Ng6 Qh8 Rh5 Bg8 Nh4 N5g6 Bdc4 Bd5 Rh7 Bf8 Rf7 Bg7 Rf8 Bg3 Re8 Rc7+ Ka6 Bc6 Nhg2 Qh6 Bcd5 Bf2 Rd8 Rc8 Bd6 Rc7 Rb8 Rc8 Be5 Rh8 Rf8 Rc8 Bb8 Qh5 Be6 Qh7 Bd7 Bd5 Bc6 Qh3 Ba8 Rc6+ Kb7 Qh7 Rd8 Qg8 Re8 Rh3 Nh4 Qh8 Rf8 Rc7+
1n1K3B/1rQ1b1qb/3n1pP1/R2rQ3/r2R1QQ1/2qR1PN1/5p1k/bB2rR2 w - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 e5 f3 e4 Nc3 e3 Ne4 Bg4 Nf2 Qd7 Qa4 exf2+ Kd1 Qd8 Kc2 Bh6 Kc3 Bd7 Qd1 Bf8 Kc2 Bc8 Kc3 Kd7 Kd4 Kd6 b4 a5 e4 h5 g4 c6 e5+ Kc7 g5 h3 d6+ Kd7 Kc5 Ke6 d4 Kf5 e6 a4 d5 h2 b6 h4 g6 a3 e7 h3 e8Q a2 b5 Qf6 b7 Ne7 Kb6 c5 Kc7 c4 b6 c3 d7 c2 d8R Rh5 d6 Be6 d7 Qg7 Qd4 Ra4 Ne2 Nc8 Bb2 Nd6 Ng3+ Kg5 Rg1 h1R Bd3 h2 Rgf1 c1Q+ Bc2 Bc4 Bb1 Qc3 Qe6 Rg1 Qde5+ Kh4 Q6f5 h1R Qfe6 Nc6 b8Q Rf5 b7 Kh3 Qa7 Kh2 b8Q Rh5 Qf4 Rd5 Qeg4 Bb3 Qe5 Bc4 Qb4 Nb8 Qac5 Bb3 Qbf4 Bc4 Re8 Bb3 Kd8 Bc4 Qc7 Bb3 Rd1 Re1 Rd3 Bc4 Qed4 Rhf1 Re5 Rg1 Rf5 Re7 Qde5 Re1 Bc2 Bb3 Rc1 a1B Bb1 Ree4 Re1 Reb4 Rf1 Rb7 Qf6 Re1 Qe6 Rdd4 Ra5 Rd5 Qee5 f6 Qb4 Rc5 Bc1 Nf5 Bh6 Bf7 Kc8 Qh8 d8R Bg8 Bg7 Bh7 Qbf4 Rcb5 R8d5 Nd6+ Kd8 Rc5 R5d4 Rd5 Ba2 Qg8 Bh8 Qg7 Bb1 Be7+
3K2kr/5p2/nQQPnBn1/1p3BNn/nQ6/1PqBBb2/1b1Nn3/1R3Q1r w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 gxh5 a5 b3 a4 Nc3 a3 Rb1 Na6 Rb2 axb2 a4 Nb8 Kf2 b1N Kf3 b5 Ke4 c5 Ke5 g5 e4 g4 h4 g3 d4 c4 a5 f3 h6 g2 h7 f2 d6 Ba6 h5 Ne7 Kf6 Nbc6 h6 Nd2 e5 Nf3 d5 Nb4 e6 Nc2 Ne4 c3 Bd3 f1N Be3 Na3 Nh3 g1N Nhg5 c2 Nd2 Bb7 a6 c1N a7 Ng3 Qf1 Ng6+ e7 Nc2 Bf5 Rc8 a8B Nce2 Bd3 Qc7 Bf5 Rg8 h8Q Nc3 h7 N1e2 Qg7 Qc4 h8B Nfd4 Qh6 Qb4 Qh4 Ne6 Qc4 Qa5 Qb4 Na4 Bd3 Bc6 Bb7 Rb8 Bc8 Ra8 Bg7 Rh8 Rg1 Rh1 Bh8 Nc7 Bcf5 Ncd4 Bg7 Rd8 Bh8 Nde6 Bg7 Na6 Bh8 Kd7 e8Q+ Kc8 d7+ Kc7 Qe4 Ba3 Qb4 Ba8 d6+ Kc6 Bc5 Bb2+ Bd4 Rc8 d8Q+ Kd5 Qb6 Bb7 Qa3 Qc3 Qb4 Bc6 Qd7 Rd8 Bg7 Rdh8 Qdb7 Ngf4 Ke7 Ngh5 Qd7 Ba8 Qdc7 Ng6+ Kd7 Bb7 Be3 Ba8 Bf6 Bb7 Be7 Ke5 Qcc6 Ba8 Qff3 Bb7 Rb1 Ba8 Qf1 Bb7 Bf8 Kf6 Be7+ Kg7 Bf6+ Kg8 Ke8 Ne6f4 Kd8 Ba8 Qcc4 Bf3 Qcc6 Ne6+
n1r1NR2/4b1np/k1rnBKNP/B1p5/4P3/B1rbnB2/Q2N2Qq/2N4r w - - 0 1 illegal: No possible last move, all moves rejected
k1NQNnK1/3rpb2/3n1b2/3r1N1Q/NQ2P2P/3b3p/1B3nQ1/q1bR2nB w - - 0 1 illegal: No proof kernel
Nk3n1B/bb6/1pBb4/2pKq1NN/P4Qb1/BP4rn/1nQNr3/2n3BR w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 b3 gxh4 Nc3 a5 Rb1 a4 Rb2 a3 Rh2 axb2 a4 Bh6 Rh1 Bf8 Ke2 Kd7 Kd3 b1B+ Kd4 h5 g4 h3 f4 h2 f6 h4 d6 e5+ Kd5 e4 d4 e3 g5 e2 f5 e1B f7 h3 g6 Na6 f6 Bf2 g7 Qe8 Bg2 Nc5 Nb5 Bf5 Bb2 Nd3 Qc2 Nc1 Nf3 Bg4 Nd2 Rh6 Bc3 Rg6 Ba1 Kd8 d7 Bd6 f8B Ra7 f7 Nf6+ Kc4 c6 g8N Nh7 d5 Qe5 Nc7 Ra5 Nf6 Ba7 Na8 b6 Nh5 Bb7 Bd4 Re6 Bg7 Nf8 Bh8 Rg6 Rf1 h1N Bg1 h2 Bf3 Nh7 f8B Nf2 Be4 h1N Rd1 Bdb8 Ba3 Nfd3 Bg2 Bd6 Bf3 Ke7 d8N Kd7 Ne6 Kc8 Ng5 Nf8 Be4 Kb8 Bf3 Bb4 d6 Nhf2 d7 Nh3 Re1 Bd6 d8Q+ Bbc8 Qf6 Bb7 Qf7 Rd5 Qf4 c5 Bf2 Rg8 Rh1 Rg7 Bg1 Nb2+ Kb5 Rd3 Bd5 Rg3 Bc6 Nd1 Kc4 Rf7 Qfe4 Rf2 Qf5 Re2 Qf4 Qe7 Kd5 Nb2 Qcc4 Qg7 Qc2 Qe5+
nQq5/Rp2R1P1/b1n3rN/1bb4B/1p5p/1k2Bn2/1P2RRKQ/1rB1Br2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 a6 Na3 a5 Nc2 Nc6 Nb4 axb4 Qf3 Nb8 Qe2 Qd7 Qd1 Qd8 f4 Kf7 Kf2 h5 g4 e5 a4 c5 d4 e4 f6 e3+ Kg2 c4 d6 Ke6 d7 Kd5 a5 c3 g5 c2 f5 e2 f7 Kc4 a6 Ne7 a7 Nbc6 f6 Qe8 d8B Bg4 d5 Rb8 a8Q Rc8 d6 Ne5 d7 N7g6 Qd2 Rb8 Nf3 Kb3 Bb6 Ne7 d8B Nc8 g6 Rh6 g7 Bc5 f8R Nc6 f7 Rg6 Ne5 Qd7 Ba7 Nb6 Rh2 Qc8 Re8 Be6+ Ng4 Bc4 f8R Ba6 Rf2 e1N+ Kg1 h3 Be2 Nf3+ Kf1 Nc4 Nh6 Nb6 Re7 h4 Bc7 Nce5 Rhg2 Nc6 Bg3 h2 Qf4 h1B Rh2 Nfd4 Kg1 Bg2 Bh5 Bgf1 Rfe2 Bb5 Rhf2 Nf3+ Kh1 Qf5 Ra5 Rf8 Qab8 Na8 Bb6 Qc8 Ra7 Bd6 Bbe3 Bc5 Rg2 Ba6 Be1 Rff6 Ref2 Bfb5 Qh2 Rf4 Re2 Rff6 Rgf2 Rf5 Bg5 Rf8 Bce3 c1R Kg2 Rb1 Bc1 Rd6 Bge3 Rff6 Bc3 Rd1 Bc3d2 Rf1 Be1 Rg6+
N1RK3r/2pn1r1b/1N5p/BBB2NPQ/3b1rb1/N2p3P/3q1Q2/n1kB2n1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 d4 gxf4 b4 e5 d6 Bh6 d5 Bf8 Ra3 Qe7 Rd3 Qd8 Rd4 exd4 Kf2 Kd7 Kf3 f5 g4 a5 e4 d3 g5 a4 e5 a3 e6+ Ke8 e7 Kf7 e8B+ Kg7 d7 a2 b6 a1R b5 R1a2 d6 Nf6 b7 Ne4 b6 Qf6 d8B R2a4 d7 Nc3 Be7 Ne2 d8Q Qc3 Bc5 Nd7 b8N Qd2 b7 h6 h3 Bd6 Na3 Be5 Qf6+ Kh7 Bb2 Bd4 Bc3 Rf8 Ba5 Rf7 Qb6 Rc4 Qb2 Kg6 Rh2 Ra4 Rf2 Rc4 Na6 Ra4 Nb4 Rb8 Nd5 Ra8 Kg2 f3+ Kh2 f4 b8N Kf5 Nb6 Ke4 Qa2 Ra6 Na8 Ke3 Bg2 Rg6 Rf1 f2 Nf3 Rb4 Nh4 Ng1 Qh5 f3 Kg3 Rg8 Kg4 Rh8 Nf5+ Ke2 Rb1 f1B Rb2 f2 Bf3+ Ke1 Bd1 Bg2 Rb3 f1N Qb2 Nb6 Bb5 Be4 Nd7 Ne3+ Kf4 Nc2+ Kg4 Nc4 Ndb6 Na1 Qa2 Qb2 Kf4 Kd2 Kg4 Kc1 Kf4 Qc3 Qf2 Ne5 Rb2 Bh1 Re2 Nd7 Re8 Be4 Kg4 Bcb7 Rc8 Bbd5 Kf4 Bb3 Kg4 Bf3+ Kf4 Bg4 Ke4 Rc4 Kd5 Qd2 Kc6 Ra4 Kb7 Rc4 Rd8 Ra4 Kc8 Bd5 Re8 Be4 Kd8 Rb4 Ne7 Bh7 Nf5 Rc4 Rf8 Bc3 Ke8 Rf4 Rg8 Rf6 Ke7 Bd4 Rc8 Nf8 Ke8 Rf7 Kd8 Nd7+
1k6/3n4/p5rb/Br1B2Bp/1B2rPN1/nnRp1qQK/2QRR1RP/6bb w - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 a4 f5 axb5 fxg4 Nd2 Bb7 Ndf3 Bd6 cxd5 Bf8 d6 Ba6 d5 Bc8 Nd4 exd4 b4 Kd7 e4 h5 e5 c5 e6+ Ke8 e7 Kd7 e8R g5 b6 c4 b5 c3 b7 g3 b6 g4 Ra3 c2 Re2 a6 Bg5 c1N Qc2 g2 Nh3 g1R Rc3 Rg2 Rg1 Nc6 b8Q g3 b7 Nb4 f4 Nb3 Nf2 Qf6 Ng4 Bh6 Qa7 Qe6 b8B+ Bb7 Bc7 Kc8 Ba5+ Bc6 Qg7 Qe3 d7+ Kb8 d8B Nf6 d6 Qf3 d7 Re8 Be7 Bd5 Bf8 Re4 Qg6 Ra7 Qg8 Rc7 d8R+ Rc8 Rd6 Nd7 Qg6 Rc6 Bfe7 Rf2 Bg2 Rb6 Bh1 Rb5 Rg2 Ba8 Ree3 Rd2 Ree2 Rd3 Rd5 Rde3 Bc5 Re6 Qgd3 R3e4 Qe3 Rd6 Qf2 Rg6 Kf1 Nc6 Bcb4 Na7 Re5 d3 Rd2 Nc8 Re7 Ncb6 Kg1 Nc4 Qe1 Rd4 Ree2 Re4 Rgf2 Ree6 Qa1 Qd5 Qe1 Na3 Bf3 Qe4 Kg2 Qb7 Kh3 g2 Rf1 g1B Qg3 Qe4 Rff2 Qe3 Bd5 Bc6 Bc4 Bh1 Bd5 Re4 Rg2 Qf3
3N4/1bB3q1/N5Q1/NRbnb3/k2p1pq1/r2P2N1/p1K3Pn/RQ1r1RRn w - - 0 1 legal: proof: h4 g5 hxg5 e5 b4 b5 a4 c6 f4 bxa4 fxe5 Qc7 e3 Nh6 b5 Ng8 b6 Qd8 Bb5 cxb5 c4 a5 b7 d5 g6 Kd7 d3 Kc6 Kd2 f5 e6 h5 e7 b4 e8N h4 g7 a3 e4 b3 c5 Kb5 c6 a2 e5 b2 c7 a4 e6 h3 e7 a3 Kc3 h2 Ne2 Nd7 b8R+ Bb7 c8R Ndf6 Rg1 h1N Bf4 Qd7 Nd2 b1Q Bc7 f4 Nc4 Qg4 Na5 Nh6 g8Q Qg7 Qc2 Qd1 Ng3 Qdg4 Qb1+ Ka4 Nd6 Ra6 e8N Be7 Nf7 Bc5 Qb2 Ra8 Raf1 a1B Kc2 a2 Qb1 Be5 Nd8 d4 Qh7 Nd5 Qg6 Bc6 Rb5 Bb7 Nf6 Re8 Nd7 Re6 Nb8 Rb6 Rb2 Rb3 Na6 Rc3+ Kd2 Rc1 Rb5 Rd1+ Kc2 Qh5 Nf7 Ng4 Re8 Nh2 Nd8 Qg4 Re7 Bf6 Re2 Be5 Rd2 Re1 Rd1 Ra7 Qb2 Ra8 Ra1 Rd1 Qb1 Be7 Nc4 Rc8 Bb6 Rc6 Bc7 Rb6 Rb2 Rb3 Na5 Ra3 Rb5 Bc5
8/p5qB/1n1k1B1R/2qnpp1n/r2RP3/BBN3rK/q2b1P2/QQQ1Q2b w - - 0 2 legal: proof: c4 b5 b4 g5 a4 c5 h4 d5 cxd5 gxh4 Nc3 Qb6 Na2 Bh3 axb5 Qc7 b6 Qd8 b5 Bc8 Nb4 cxb4 g4 Kd7 d4 h5 e4 f5 d6 e5 g5 h3 d5 h2 g6 h4 g7 b3 b7 h3 b6 b2 Ra4 b1N Rd4 Qf6 Ba3 Nc3 Ne2 Rh6 Qc1 Qe6 Qa1 Nf6 g8B Nh5 Bh7 Rg6 Qc1 Bh6 Qa1 Rg3 Qc1 Nb5 Nc3 Nc7 Bc4 Bd2+ Kf1 Qg8 Bb3 Qg7 Rg1 h1Q Qa1 Nc6 b8Q h2 b7 Na5 Qe1 Qf3 Rh1 Nc4 Qc1 Nb6 Qa1 Ke8 d7+ Kf7 d8Q Qe3 d6+ Ncd5 d7 Ke6 Qbc7 Rb8 Ra4 Qc5 Rd4 Na8 Qf8 Nb6 d8B Bd7 Be7 Ba4 Bf6 Rc8 b8Q Rd8 Bc4 Bd1 Bb3 Bf3 Qbb7 Rd7 Qfb8 Rd6 Qa6 Rd7 Qe2 Rd8 Qee1 Rd7 Rg1 h1Q Qbb7 Qh3+ Rg2 Qhg4 Rh2 Bh1 Qcc8 Kd6 Rh3 Nf4 Rh6 Nh5 Qbb8+ Rc7 Qbb7 Qg8 Qbb8 Q4g7 Qbb7 Bg2+ Kg1 Bh1+ Kh2 Na8 Qb5 Rc6 Qbf1 Ra6 Qeb1 Ra4 Qfe1 Qb4 Qc4 Qc5 Qcf1 Nb6 Qec1 Qc8 Qe2 Qa6 Qee1 Rg1 Kh3 Qc4 Bc2 Qa2 Bb3 Rg3+
1kq2nrB/1npQ3Q/RRRnBK2/1r1Q1R2/3p1PN1/2bP3Q/1p6/b3n2b w - - 0 1 legal: proof: e4 h5 c4 b5 g4 f6 gxh5 f5 exf5 a6 b4 bxc4 Nc3 a5 b5 Ra6 Nd5 Ra8 Nb4 axb4 Ke2 g5 Kf3 d5 Kg4 Kd7 h4 e5 a4 c3 f4 b3 f6 c2 Kf5 g4 f7 g3 a5 e4 h6 g2 a6 e3 h7 e2 a7 e1B h5 Qe8 h6 Bg3 b6 Ne7+ Kf6 Be1 b7 Rg8 h8Q Nf5 h7 Nd6 Nh3 g1N Ra6 Nf3 Bb2 c1N Nf2 Nd3 Ng4 Nc5 Rh6 Kd8 Bh3 Bg7+ Kg6 Nbd7 b8R Qf8 Rbb6 Rb8 a8Q Bb7 d3 Kc8 Bc3 Qd8 f8R Bd2 Rf5 Ne1 Qe2 Bc6 Qe7 Ncb7 Ba1 Bb2+ Qhg7 Bb4 h8Q Nf8+ Kg5 Qd7 Qg6 Bg7 Qgh7 Bd2 Bf6 Bc3 Qe6 Ba1 Bb2 Bc3+ Q8g7 Bb4 Kf6 Bd2 Be5 d4 Qge7 Bh1 Rg6 Nc5 Qad5 b2 Rc6 Kb7 Qeg7 Qe8 Qgd7 Bc3 Kg5 Ng2 Nh6 Rc8 Rf6 Nf5 Rd6+ Kb8 Rf7 Ne1 Bh8 Ne3 Bf5 Nc4 Qe3 Rd8 Ng4 Rc8 Qeh3 Rd8 Q7e6 Qd7 Qe7 Kc8 Re6 Qe8 Rff6 Rd6 Qd7+ Kb8 Rf7 Rb6 Rd6 Rb3 Rdb6+ Nb7 Rff6 Na3 Rfc6 Nb5 Kf6 Rb4 Rg5 Nd6 Be6 Qc8 Rf5 Rb5
Rrb5/b7/2nN1R2/Np1BN3/N1Qb1Pn1/1p4qk/1Pnr1n1p/Q1K2RR1 w - - 0 1 legal: proof: e4 g5 c4 f5 exf5 d5 cxd5 Bg7 Nh3 Bh6 Ng1 Bf8 h4 gxh4 d3 a6 Bd2 a5 Bb4 axb4 Kd2 Kd7 f4 c5 a4 h5 g4 b5 d4 e5 g5 b3 f6 c4 f7 h3 d6 Ke6 g6 Kf5 d5 h4 g7 h2 d7 h3 a5 e4 d6 c3+ Kc1 e3 a6 e2 a7 Kg4 Nf3 e1N Ne5+ Kh4 Bg2 c2 Rg1 h1N Nc3 h2 Bd5 Nf6 g8Q Bg7 f8R Kh3 Na4 Ng4 Rf6 Nc6 Rf1 Qe7 d8N Rb8 a8R Nhf2 d7 Qf7 Rb1 Qg6 Nb7 Qd3 d8N Qg3 Qe6 Re8 Ndf7 Rd8 Na5 Rd7 Nd6 Bh8 Kd2 c1B+ Ke2 Be3 Qc1 Ne4 Kd1 Ba7 Qc4 Rd8 Kc1 Nf2 Qf5 Bg7 Ra1 Bh8 Qb1 Nc2 Qa2 Rd7 Rb1 Bg7 Qa1 Re7 Ng6 Nh1 Rg1 Bb7 Rf7 Ba6 Kd1 Bgd4 Rf6 Re2 Ne5 Bc8 Rc1 Re1+ Kd2 Nhf2 Rd1 Re4 Rdf1 Re2+ Kc1 Rd2
2NBrNR1/N3QKQp/PR2N1RP/2R3bq/4n1k1/1p6/r1p3q1/1nq1qb2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 g6 f6 Qd6 f7+ Kd8 f5 Kd7 f6 Ra7 Bd3 Ra8 Bf5+ gxf5 Qe2 Kd8 Qf3 Qd7 Qf1 Qe8 Qe2 Kd7 Qd1 Qd8 Kf2 c5 Kg3 e5 Kh4 b5 Kg5 b3 d4 e4 g4 b4 a4 f4 h4 c4 a5 f3 h5 c3 a6 b2 d6 Ke6 d5+ Ke5 d7 c2 d6 f2 h6 f1Q Nc3 b1Q Nh3 b3 Nd5 e3 Qe1 e2 Nhf4 Bb7 Rh5 Bc8 Ne7 Qb6 d8N Qb4 d7 Bg7 f8Q Qa5 f7 Nf6 Qg3 Nd5 Ndc6+ Ke4 d8R Nd7 Na7 N7f6 Rd6 Rg8 Rb6 Be6 Ba3 Re8 Nec8 Nc3+ Qc5 Qh1 f8N Bc4 N4e6 Qb2 Qge5+ Kf3 Rg1 Nfe4+ Kf5 Qh2 g5 Bf6 g6 Rg7 Qed4 Rf7 Rgg5 Qg2 g7 Rd7 g8R e1Q R5g7 Bf1 Rg6 Rd5+ Qe5 Rd4 Qec7 Ra4 Qg7 Qba1 Bc1 Ra3 Bg5 Ra2 Bh4 Qac1 Bg5 Be5 Bd8 Nb1 Qcc7 Qd5 Qce7 Qdd1 Rhg5 Bf4 Rh5 Ned2 Kf6 Ne4+ Kf7 Qde2 Rd5 Bg5 Ra5 Kg3 Re5 Qh5 Rc5 Kg4
1R5N/3Bp3/pb1KN3/P1R1N1Qq/3p1rr1/2R4b/qr1QPnNR/rkn5 w - - 1 2 illegal: Other
6K1/bp3Q1B/B3P2q/B2pN1r1/2NnQb2/bPQ1p1qR/1rB1bk2/Q2n4 w - - 0 1 illegal: No possible last move, all moves rejected
1B1Q2nr/1QP1bR1N/1p6/2bR2N1/1p4Rp/rk1bN1pP/3Kr1R1/q2n1N2 w - - 0 1 legal: proof: e4 a5 g4 d5 exd5 c5 b4 cxb4 Bd3 f5 Bc4 a4 Bb3 axb3 gxf5 Bd7 Nf3 Be6 Ng1 Bc8 c4 Kd7 a4 Kd6 d4 e5 f4 h5 a5 g5 a6 g4 c5+ Kd7 a7 e4 f6 g3 d6 Ke6 f5+ Kd5 f7 Kc4 f6 b6 d5 e3 c6 b2 d7 e2 d6 Bg7 f8R Qe7 d8R Nd7 f7 Qe4 Kd2 Ne5 d7 Nd3 Nh3 Qf5 Ng5 Nf2 Ra2 Rb8 a8N Bh6 Nc7 Qe4 Nd5 Ra8 Ne3+ Kc5 h3 h4 Rf1 Qh1 Qc2+ Kd4 Qh7 Nd1 Rf4+ Kc5 Re4 Ra3 Rg4 e1B+ Ke2 Bc3 Nc2 Qg1 Ne4+ Kc4 Bf4 Qc5 Ne3+ Kb3 Bb8 Nf2 c7 Qe5 Nbd2+ Ka4 Ke1 Bd4 Ndf1 Bg5 Qh6 Be7 Qc6+ Kb3 Qb7 b1R+ Ke2 Nd1 Kd3 Nc3 Rg2 Re1 Kd2 Bdc5 Rde8 Bed6 d8Q Qf6 Re5 Bf5 Rd5 Qg7 Re8 Bf8 Re7 Nd1 Red7 Bfd6 f8N Qa1 Ng5 Bd3 Rf7 Be7 Nfh7 Re2+
2r2Nk1/QBp1p1q1/1npPP2n/2Kb2p1/r2r1Q2/5NR1/NQn2B1b/1N4Q1 w - - 0 1 legal: proof: c4 g5 f4 b5 fxg5 b4 c5 b3 c6 dxc6 axb3 Bd7 b4 Bh3 b5 Bc8 g4 h6 b4 Qd6 g6 Qc5 g7 Qd4 g5 Rh7 g6 Rh8 Ra3 Qd5 Rg3 Qd8 Rg5 hxg5 Kf2 a5 Ke3 f5 d4 a4 h4 a3 d5 f4+ Kd4 f3 e4 f2 h5 a2 d6 a1R b6 Bg4 e5 Bf3 b7 R8a7 e6 R7a5 h6 Bh5 b5 R5a2 b6 Na6 b8Q Re2 h7 Re3 b7 Bf3 Qa7 Rc3 b8Q Rc5 Be3 Bg4 Nf3 Rc1 Rg1 Nh6 g8N Bg7+ Nf6+ Kf8 Rg3 Nc5 Ba6 f1N Bb7 Nd7 Bf2 Ne3 Qg1 Nc2+ Kc4 Ra2 Nd5 Rd1 Ndc3 Nb6+ Kc5 Ra4 Na2 Rg8 h8N Rdd4 Qe1 Bf6 Qg1 Be5 g7+ Ke8 Rg2 Bh2 Ng6 Bf5 Nf8 Be4 Rg3 Bd5 Nd7 Rf8 g8Q Qc8 Qh7 Rg8 Qf5 Rh8 Nf6+ Kf8 Nh7+ Kg8 Qf4 Qe8 Nf8 Qg6 Bc8 Qg7 Ba6 Nc4 Qb2 Nb6 Ng6 Kh7 Bb7 Rc8 Nf8+ Kg8
r3KQN1/2B1BBNQ/n3ppbQ/1k2P2b/2Rn2q1/1p2Q1n1/1P1B1p2/r6r w - - 0 2 legal: proof: f4 g5 d4 gxf4 a3 b5 Qd3 c5 dxc5 b4 Qd2 b3 Qd1 Bg7 g4 h5 g5 Bc3+ Qd2 Bb4 axb4 Rh6 Qd1 Rh8 Ra6 Qc7 Re6 Nc6 Re3 Nb8 Rg3 Qd8 Rg4 hxg4 Kd2 a5 Kc3 d5 Kd4 Kd7 Ke5 Kc6 h4 a4 e4 g3 c4 d4 h5 d3 b5+ Kd7 h6 d2 g6 g2 h7 a3 b6 Kc6 g7 f3 b7 a2 Qe2 a1R Nc3 d1B Nh3 g1N Nf4 f2 Rh4 R8a6 Ncd5 R1a3 Bd2 R6a4 Nf6 Qd7 Ne6 Ra5 Qe3 Nh6 g8Q Na6 b8B Ra1 Ng7 Be2 Bc7 Rc1 Qf8 Rg8 h8B Raa1 Rf4 Kb7 c6+ Ka8 c5 Bh5 Bc4 Qe8 Kd5 Ka7 e5 Rcb1 Bca5 Bh3 Nf5 Rg7 Qg8 Bd1 Qh7 Rg4 Ng8 Qc8 Bd8 Rh4 Bf6 Nf3 Ng7 Nf5 Rd4 Re4 Bg5 Rf4 Qh6 Bg2 c7 Re4 Kc6 Ng3 Qc3 Qh3 c8Q Nc7 Qe3 Bc2 Bf6 Rh1 Qf5 Bd1 Bd5 Ka6 Kd7 Kb5 c6 Bf1 Be6 Bd3 Qfh7 Rg4 Bd5 Bg6 Bg5 Rf4+ Be6 Rf6 Rc4 Na6 c7 Nd4 c8Q Bdh5 Bc7 Qf5 Kd8 Qg4 Bd5 Rb6 Be6 Rb7 Kd7 Ra7 Qf8 Be4 Ke8 Bc2 Bf5 e6 Be7 f6+ Bg6 Bf5 Bf7 Bfg6 Bcd6 Ra8+ Bb8 Ra7 Bc7 Ra8+
1bQ2b1k/rBr1nb2/Q5Bp/4qB1R/PRQ1p2K/2p1QNp1/2P5/B1n3r1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 g5 hxg5 a5 bxa5 Be6 Bb2 Bg4 Bc1 Bc8 g4 f5 g6 Nf6 g5 Ra6 Nc3 Ra7 Nd5 Ra8 Ne3 Ng8 Ng4 fxg4 d4 c5 a4 e5 f4 b5 Kf2 h6 Kg3 e3 f5 c4 d5 e2 d6 c3 d7+ Ke7 f6+ Ke6 f7 e4 a6 b4 a7 b3 g7 b2 g6 Kf6 Qd4+ Ke7 Rb1 Qb6 d8Q+ Ke6 Rh5 Nc6 Kh4 Nb4 Nf3 Qd6 Q8b6 Ne7 g8B Na2 g7 Rh7 Qe3 Kf6 Bh3 Be6 Qa6 g3 Bf5 e1B Bg6 Bf2 Bf5 Rc8 a8B Qe5 Bb7 Rc7 Bg6 Rh8 B8h7 Rg8 Qd2 Ba7 Qe3 Bb8 Bf5 Rh8 Bhg6 Rh7 g8Q Rg7 Ra1 b1R Bb2 Rf1 Rb1 Nc1 Ba1 Rg1 Rb4 Rh7 Bb2 Bg7 Qc8 Bf8 Ba1 Kg7 Qc4 Bd5 Qe6 Kh8 Qea6 Bg7 f8Q+ Bg8 Qd8 Bf8 Qd7 Bf7 Qc8 Ng8 Qee2 Rd7 Qab5 Bd5 Ba8 Ra7 Bb7 Rc7 Qe3 Ne7 Qa6 Bf7
qR2N1N1/k3n1B1/1p5P/1B6/3p1r2/nbpPpQ1B/3BKN2/Q1q1Nqbr w - - 0 1 legal: proof: b4 f5 c4 h5 a4 f4 g4 b6 gxh5 f3 b5 Bb7 exf3 Ba6 f4 Bc8 f5 Nf6 c5 bxc5 b6 c4 b7 Ng8 Ra2 Nh6 Rb2 Ng8 Rb6 axb6 f4 c5 h4 d5 h6 Kd7 h7 Kc6 a5 e5 d3 g5 h5 e4 a6 c3 a7 e3 f6 g4 f5 g3 f7 c2 f6 c4 Bh3 c3 Bd2 c1Q Ke2 g2 Nf3 g1Q Ne1 Bd6 f8N d4 f7 Qh4 Nd7 Qhg5 f8Q Bc5 Nf6 Qd5 Ne8 Be6 Qf3 Nd7 b8N+ Kb7 Nc6 Bd6 Ne7 Ne5 Rh2 Rd8 a8B+ Ka7 Bc6 Nc4 Bb5 Na3 Rf2 Ra8 h6 Bh2 Rg2 Qh1 Rg5 Bg1 Rf5 Qb7 Rf8 Qa6 Qa4 Bb3 Qa5 Rc8 Qa4 Rc5 Qa5 Rh5 Qa4 Nf6 Ng8 Nd5 Qa5 Ne7 Qa4 Nc2 Qa1 Qa4 Ngf6 Rg8 h8B Rg4 Ng8 Rf4 Bg7 Qa5 Nc7 Qa2 Rb8 Na3 Ne8 Rhh4 Qg3 Qa8 Qf3 Nc2 Na3 Qab2 Nc4+ Na3 Ncd6 Qa2 Ne4 Qac2 Bf1 Rh1 Bh3 Q2d1+ Kf1 Qb2 Bc1 Qh2 Bd2 Qc1 Nf2 Qg2+ Ke2 Qf1+
4qn2/1p5P/1B3rN1/Q5Kr/B1pBkp1B/QpRq2R1/nP6/Q1bQqb2 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 h5 gxh5 d5 cxd5 a6 Na3 a5 Nc2 Nc6 Nb4 axb4 Bg2 Nb8 Bh3 Qf6 Bf1 Qd8 Qc2 Kd7 Kf2 Kd6 Kf3 Ke5 d4+ Kd6 e4 f5 h4 g5 a4 c5 h6 b3 h5 Qc7 a5 Ne7 a6 Nd7 a7 Qb8 Ne2 Nc6 Rg1 Nb4 Be3 c4 Bh3 Bg7 Rac1 Nf8 Qd2 Rh7 Rc3 Bh8 Rg2 Na2 e5+ Kc7 e6 Kd6 Qc1 Bd7 Qa1 g4+ Kf2 f3 Bg5 g3+ Ke3 f2 e7 f1Q e8Q Bb5 Qe5+ Kd7 d6 Kc6 d5+ Kc5 d7 Qc8 d8Q Rf7 d6+ Kc6 d7 Bf6 Nf4 Qc7 Bh4 Bg5 h7 Qc8 h8B Rh7 Rg1 g2 h6 Rf7 h7 Ba4 Qde7 Qe8 d8B Bb5 Qa3 Qd3+ Kf2 Rc8 Bb6 Rd8 a8Q Rd6 Qg7 Rh6 Q8a5 Ba4 Qge5 Bb5 Ng6 Bc1 Qf4 Kd5 Qd2 f4 Bd7 Rf5 Bhd4 Rf6 Bdc5 Bc6 Qd1 Be3+ Kf3 Bd2+ Kg4 Bc1 Bf5 Bd7 Be6+ Ke4 Kg5 Bc8 Bh3 Bg4 Bd4 Be2 Rh1 g1Q+ Bg4 Qgg3 Rg1 Qf2 Bd7 Qe1 Rg3 Bf1 Ba4 Rh5+
b7/pq1R1N2/1nP2k1n/1N1pp1n1/1n6/Kp1RbN2/1P2Q2R/B1NrR1rQ w - - 0 1 illegal: Other
3q1n1B/NK1R2Q1/2Np2nR/2kb1p2/1p2pPqr/1Qr4r/1PrQR3/R2Q4 w - - 0 1 illegal: No extended proof kernel
r5qn/3b2QR/R1BpRb1n/3BpK2/pP2B2k/r2p1Rp1/Qq1P3N/4B3 w - - 0 1 illegal: No possible last move, all moves rejected
3qn1RN/2R1Pqb1/N3bbB1/3qR1N1/1Rr1R3/K1B4q/N1qP2nk/8 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 c4 b4 cxd5 Nc6 f4 exf4 a6 Rb8 a5 Rb6 axb6 Nb8 Qa4+ Ke7 Qe8+ Kxe8 Kd1 Kd7 Kc2 Kd6 Kb2 Ke5 h4 c5 e4 f5 h6 g5 a7 c4 a8R b3 b7 f3 d6 Kf4 e5 Kg3 d7 g4 h5 f4 e6 f2 e7 c3+ Ka3 c2 h7 b2 h6 f3 Kb3 Bg7 Rh5 Nf6 R8a4 Nd5 Nh3 Kh2 Ra8 g3 R8a7 g2 Nc3 b1Q+ Ka3 g1B Na2 Na6 b8N Nf4 Rc7 Qb5 Bd3 f1Q Ng5+ Qh3 Bb2 c1Q Rb1 Ng2 Bg6 Qc2 Bc3 f2 Rb4 f1Q Re4 Re8 h8N Qf7 h7 Qbd5 Rhh4 Bf6 Re5 Bg7 Rb4 Bd4 Re4 Bdf6 Re5 Nc5 Na6 Nb7 Ree4 Nd6 Re5 Rg8 Rbe4 Qde8 d8R Be6 Rb8 Qd7 Rbb4 Rc8 Rg4 Qd8 Rge4 Qfg8 Nhf7 Ne8 h8R Qgh7 Rg8 Q7h5 Nh8 Qh7 Rd7 Rc4 Rc7 Q7h5 Bh7 Qf7 Bf5 Kg1 Bg6 Kh2
6NB/1k6/R1rn1r2/R1rBBbqq/6PN/PB1n3p/B1bn4/2bKN1N1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 fxe5 g5 h4 b3 hxg5 Bb4 a3 Bd6 Qc2 Bf8 Qa2 bxa2 g4 Kd7 d4 h5 e4 b5 e6+ Kd6 g6 c5 e5+ Kc7 g7 f5 d6+ Kb6 d7 f4 e7 f3 e8B b4 e6 c4 d5 c3 e7 f2+ Kd1 b3 d6 b2 Bf4 h4 Bg2 f1N Be5 Na6 Bd5 Nd2 Bef7 Nh6 g8N Nf5 e8B Qg5 d8N Bh6 d7 Nb4 Ne6 Nd3 Nd4 Ra5 Nc2 Rc5 Ne1 Nd6 d8B+ Ka7 Bb5 Bf5 Bdf6 h3 Bbc4 Rc6 Bb3 Kb7 Rh2 Qh5 Rf2 Bf4 Bfe6 Rh6 Bh8 Rf6 Re2 Qg5 Re4 Be3 Ra4 Qh5 Ra6 c2+ Ke2 c1R Ra5 N2e4 Nd2 b1B Ndf3 Rc5 Nh4 Bc1 Bf7 Nd2 Ra6 Bc2 Rb1 a1Q Rb2 Bb1 Kd1 Qa2 Rc2 Qb2 Rc4 Qc3 Rca4 Qa5 Ba2 Qd8 R4a5 Qe7 Bfe6 Qg7 Bdb3 Qgg5 Bed5 Bc2+
Nb3B2/2N1B1q1/P4Pb1/2bnB2p/Nk5r/NB1r1RRK/8/qnrr3B w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 g5 a4 g4 Qf3 g3 Qa3 bxa3 hxg3 Bg7 g4 Bh6 g5 Bf8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb4 d6 h5 d5 e5 a5 c5 a6 b5 f6 c4 g6 a2 d7 c3 f7 e4 f5 e3 f6 c2 d6 e2 g7 e1R Kh3 Bb7 g4 Qc8 d8N Re4 d7 Re6 g5 Ne7 g8B Re4 g6 Nd5 g7 Nc6 Ne6 Ne5 d8B Qd7 Na3 Nc4 Bg2 Rc8 Ne2 Nd2 Nc3 Bc5 f8B Nb1 Bf4 c1B Be5 Bf4 Rf1 Bh2 Bh1 Rh4+ Kg2 Bc6 Na4 Qc7 Rf2 Be8 Rf3 Bg6 Bde7 Rh7 Bf7 Qa7 g8N Qd7 Bd4 Bb8 Nc7 Qg4+ Rg3 Qg5 Be5 Qh6 Na8 Qg7 Nh6 Rc7 Ng4 Rh8 B7d6 Rd7 Bfe7 Rc8 Ne3 Nc7 Bb2 Nc3 Bd8 Ka5 Nf1 b4 Nb5 b3 Ne3 Kb4 Rf1 a1Q Bf8 Rd3 Nc4 Be7 Nca3 Bd6 Bc4 N7d5 Rff3 Rc5 Nbc7 Be7 Bc1 b2 Bf4 b1R Bb3 Rbd1 Be5 Bd6 Bde7 Nb1 Rh3 Rcc1 Rhg3 Rhc4 Kh2 Bc5 Kh3 Rh4+
brq2rkN/2p1Bbr1/3NNR2/P1Pb3N/2B5/4N1b1/bB1R1n1r/4KB2 w - - 0 1 legal: proof: d4 e5 dxe5 a5 e4 h5 g4 f5 exf6 Bd6 f4 Be7 b4 axb4 f5 Bd6 f7+ Ke7 Qf3 Bc5 Qe2 Kd6 e5+ Kc6 Qc4 Na6 Qf4 Bf8 g5 Nc5 Qg3 Ne4 Qg4 Nef6 gxf6 hxg4 c4 b5 a4 d5 h4 Kd7 h5 g5 a5 d4 c5 b3 h6 b4 h7 b2 Ke2 b3 Kd2 d3 Rh3 g3 Rh2 g2 Rh6 g4 Rh2 g3 Nh3 g1R Nc3 b1B Ne4 b2 Nhf2 g2 Nd6 Rh1 Ng4 g1R Ke1 Ba2 Ne3 b1B Rd2 Nh6 Bb2 Bd5 Ra4 Bba2 Rf4 Rhg8 h8N Bcb7 Rf3 Bg7 f8B Rb8 f7 Ng4 f6 Rh2 Be7 Rf8 Rf4 Ba8 e6+ Kc6 Rff2 Qc8 Rf5 Nf2 Rf4 Rg8 f8N Rg4 f7 Be5 Rf3 Bg3 Nh7 R4g7 Nf6 Rf8 Nh5 Bh4 Bd8 Bg3 e7 Kd7 e8B+ Ke6 Bb5 Bdc6 Be7 Bcd5 Rd1 d2+ Ke2 Bdb7 Bc4+ Bd5 Rf6+ Kd7 Rb1 d1B+ Ke1 Bc2 Rd1 Bg6 Rf5 Ke6 Rd2 Rb3 Bg5 Rb8 Rf6+ Ke7 Bh4 Rd8 f8N Bgf7 Ne6 Re8 Nd4 Kf8 Ne6+ Kg8 Rf3 Rb4 Be7 Rb8 Rf6 Rf8
1Nn1kq1N/3bq2r/2P1RqN1/qB3p1N/6R1/4r3/1r2PR1b/1KRrBR2 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qb6 g5 Qd8 Nd2 h5 Ra2 f5 Ra1 Nf6 gxf6 Nc6 Nb1 Ne7 Qd2 Ng8 Qg5 Nh6 Qf4 Ng8 Qg4 hxg4 Kd1 d5 h4 a5 c4 g5 Kc2 a4 b4 a3 e6 g3 h5 a2 f7+ Ke7 c5 g4 h6 g2 b6 g3 b5 Ra6 h7 Qd6 b7 Qf4 b8R Ra4 b6 Qh6 b7 Qf6 Rh2 Ra3 Nd2 Bd7 Rc8 Re3 Ngf3 g1R b8N g2 Ne5 d3+ Kb2 d4 Ne4 d2 Ng3 d1Q Nh5 d3 Bd2 Qa4 Be1 d2 Rc7 Bg7 f8R d1R Rf7+ Kd8 e7+ Ke8 Rc1 Bf8 Rg7 Qah4 Rg4 a1Q+ Kc2 Qa8 Kb1 Qa5 Ng6 Rh1 Rc6 g1Q Rf2 Bh6 Rc7 Bf4 Bg2 Bh2 Bc6 Qf8 Ba4 Qhf6 Bb5 Qg3 Rc6 Qge5 Rd6 Rd2 c6 Rc2 Rdd4 Qee6 Rdf4 Qef7 Bb4 Rd1 Be1 Q7g7 Rf1 Rcd2 R4f2 Qgf7 Ra4 Rb2+ Ka1 Q7e6 Ne5 Qd6 Ng6 Kf7 e8R Qdb4 Re6 Ne7 Ng3 Ke8 Nh5 Rg8 h8N Rg7 Bd2 Qd6 Bc3 Rh7 Be1 Rc2+ Kb1 Qa3 Rd6 Nc8 Re6+ Qae7 Rg4 Rb2#
2RK4/1pB1P3/7N/bbBB2r1/1Rb1PN1n/nb2B2q/p2r2R1/2R2nBk w - - 0 1 illegal: No proof kernel
1N3n1N/1BPq4/N3rrp1/2K1R1BP/R1N1rnN1/q2b1p2/4R1nR/1k5n w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 g3 b5 axb5 e5 fxe5 Kf7 Ra2 Ke7 Ra1 Ke8 Kd2 h5 Nf3 f4 Ke1 Be7 Ng1 f3 Qd2 Bf6 Qf4 Bg5 Qg4 Bf4 gxf4 hxg4 Kf2 Kf7 h4 Ke6 c4 Kf5 b4 Ke4 e6 a5 f5 d5 c5 d3 h5 d2 f6 d1R f7 a4 f8N d4 c6 a3 b6 d3 b5 d2 c7 a2 e7 Bd7 e8R+ Ne7 b7 Ra4 b6 Rh6 Rh2 Re6 Nh3 Nf5 Na3 Ng3 Nc4 Bb5 Ng6 Nd7 b8N Nf8 b7 Qd7 Nh8 g6 Na6 Kd4 b8N Kc3 e4 Kc2 Ke3 Nh1 e5 g3 Re7 g2 Nf2 g1N Ng4 Ne2 Re8 Rf6 e6 Nf4 e7 Re1+ Be2 d1N+ Ke4 Nh3 Bg5 Nf4 Ke5 Ne3 Ke4 Qc8 Kd4 Qd7+ Kc5 Neg2 Bf1 Ree6 Bd3+ Kb3 Be4 Rb4 Bb7 Kc2 Rd8 Ra4 e8R Rb4 Re1 a1Q Re2+ Kb1 Re7 Qa3 Rde8 Rb6 R7e4 Rbd6 R8e5 Rde6 Na5 Bd3 Nc4 Qa1 Ra2 Qc3 Ra4 Qa3 Re2 Qa2 Nb6 Re4 Nc4 Qa3+
R1q3k1/P1B5/pKB1N3/2P1r2p/3RqRn1/N1Rp1q2/1b1nN2r/4RN1r w - - 0 1 illegal: No proof kernel
4NNNr/1R2q3/Rn2NnpR/2R4n/3n2bk/4p3/pPB1R1P1/2KBq2r w - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 b4 h5 g6 h6 Bg7 hxg7 b3 axb3 Bb7 b4 Ba6 b5 Bc8 d4 e5 e4 f6 d6 Bb7 d5 Bc8 Qd4 Kd7 Bf4 exd4 e5 Ke8 e6 Bd7 Bh2 Bc8 Be5 fxe5 Kd2 a5 f4 h5 f5 c5 b6 d3 d7+ Ke7 d6+ Kf6 b7 Kg5 e7 h4 e8B a4 f6 a3 f7 h3 f8N h2 Kc1 c4 Nc3 e4 Nb5 e3 Nh3+ Kg4 Be2+ Kh4 Nc7 c3 Ng5 Qe7 d8R Nf6 g8N Bg4 Nge6 Nbd7 b8R Nb6 d7 a2 Rb7 Ra5 Ra8 Rah5 d8R R5h7 Re1 h1N Ra6 Ng3 Bd1 Ngh5 Rc8 Rh6 Re2 d2+ Kc2 R6h7 Ba4 Rh6 Ne8 R6h7 Kb3 c2 Rc5 c1N+ Kc3 Nb3 Rc1 Nd4 Bac2 Nf4 Rh5+ Kg3 Rh6 N4h5 Kd3 Kh4 Ba4 Rg7 Rc5 Rgh7 Bdc2 d1Q+ Kc3 Qg1 Bd1 Nb5+ Kc2 Nd4+ Kc1 Qe1 Bc2 Rf7 Nh7 Rf8 N8c7 Rd8 Nhf8 Rd5 Ne8 Rf5 Rcc7 Rf1 Rc5 Rh1
2RN2KN/b4bPn/PB3N2/Bbb2pBp/1r4Rr/2kBn3/pNB5/3b4 w - - 0 1 illegal: No proof kernel
3r2B1/Rb1nP3/N1Nb1Pk1/2R1n1B1/1pr4p/1p1NKN1b/8/bbRR1N2 w - - 0 1 legal: proof: g4 e5 d4 g5 b4 c5 dxc5 f5 Qd4 exd4 gxf5 a5 h3 g4 h4 Qg5 hxg5 axb4 Kd2 Kf7 a4 b5 f4 h5 e4 d5 c4 h4 g6+ Kf6 a5 g3 g7 d3 a6 b3 e5+ Kf7 a7 g2 f6 b4 e6+ Kg6 c6 d4 c5 Bb7 f7 Ne7 g8N Kf5 c7 Nd5 c8R Nc3 c6 Na6 c7 Bc5 f8N Rh5 Nf3 g1B Nd7 Bd6 Nde5 Na2 Ne7+ Kf6 f5 Nc5 Bg2 Nd7 N7c6 Rh8 e7 Rd8 Bf1 Rb8 a8N Bh2 Ng6 Bhe5 Nf4 Kg7 f6+ Kh7 Kd1 d2 Ke2 d3+ Ke3 d1B Nbd2 Bc2 Bh3 Bb2 Be6 Bb1 Nf1 d2 Nd3 d1B Bg8+ Kg6 Bd2 Nc1 Ra7 Rf8 Rd8 Ba1 c8R Be2 Nc7 Bd1 Ng5 Bg4 Na6 Bh3 Nf3 Re8 Rc7 Rc8 Rg1+ Kh5 Rg5+ Kh6 Rc5 Kg6 Ke4 Rf8 Bg5 Re8 Ke3 Rf8 Nf2 Nd3 Rc1 N3e5 Nd3 Bg2 Ncb8 Re8 R7c5 Bh3 Nc6 Rc7 Rb8 Rd8 Rd1 Ba8 Rbb5 Bb7 Rcc1 Rcc8 Rbc5 Bg2 Ncb8 Kf5 Rb5 Rc4 Rc5 Bh3 Nc6 Kg6
1b2BBR1/6q1/3bNqN1/3bn1rp/4KR1N/k3pB1q/3NBP1P/r1N1n2b w - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 f5 g4 d5 gxf5 dxe4 Qe2 Na6 Qc4 Nb8 Qb4 cxb4 Ke2 Kd7 Ke3 Kc6 c4 Kc5 a4 e5 f6 h5 f7 b5 a6 g5 a5 b3 d4+ Kb4 c5 g4 d5 g3 a7 g2 d6 b2 c6 Be6 a6 Bd5 d7 Qf6 d8N Bd6 f8N Nd7 c7 Nc5 c8N Nh6 Ne7 Ng4+ Kd2 e3+ Kc2 e2 Nh3 e1B Neg6 g1Q Nh4 e4 Bh6 e3 Nf4 Ne5 N8g6 Bc3 Nde6 Rhg8 Bf8 Ncd3 Nd2 Qg2 Be2 Qh3 Rag1 Ka3 Rg4 b4 Rhg1 Bd4 R1g3 B4c5 Rg1 b3+ Kc3 Bb4+ Kd4 Ne1 Nd3 b1B Nc1 b2 Rf4 Bbe4 Rgg4 b1Q Rg5 Rb8 a8B Bh1 Bc6 Ra8 a7 Bb8 Be8 B4d6 Rgg4 Qb7 Rg1 Qbg7 Rg5 Bc7 Rgg4 Rb8 a8B Rb1 Rg1 Bb8 Bb7 Bb3 Bbf3 Ra1 Ke4 Bd5+ Kd4 Kb2 Ne7 Qgf7 Rg3 Ka3 Rg2 Rg5 Rg1 Rf5 Rg8 Q7g7 Neg6 Ba2 Ke4 Rg5 Ng2 Bc4 N2h4 Bd5+
N1Nk1B2/2nq4/1b1q1pNB/pr4rB/KP1r2RR/b3NPn1/bb2B3/6B1 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 a4 h5 axb5 hxg4 cxd5 Nf6 d6 Ng8 d5 Rh3 Qd2 Rh8 Qd4 exd4 Kd2 a5 Kc2 g5 Kb3 c5 h4 d3 e4 f6 d7+ Ke7 e5 c4+ Ka4 g3 b4 d2 b6 d1R b7 g2 h5 g4 e6 g3 h6 c3 f3 c2 h7 Ra7 Nh3 g1Q Be2 g2 Nd2 Qdb6 d8N Bg7 d6+ Ke8 d7+ Ke7 Nf1 Qa6 Nf7 Bh6 d8N Qd4 Nf4 g1B Rh4 Be3 Bd2 c1B Nd6 Ba3 Rc1 Qad3 Rc4 Na6 b8B Rb7 Ba7 Rb5 Bc1 Bd7 Nc8+ Ke8 e7 Be6 Bc5 Qd7 Ng6 Q3d6 Rcg4 Ba2 Ne6 Bhg5 Bb6 Nh6 Bd4 Nf5 Nc7+ Kf7 Bc5 Ng3 Na8 Nc7 Bd2 Re8 h8B Bgf4 Bc1 Be5 Bg7 Beb2 Bf8 Bg1 B5e3 Bf2 Beh6 Bb6 Bce3 Rd4 Bg1 Ke6 Ne3 Kf7 Bf4 Ke6 Bg7 Rh8 Bf8 Rhh5 B4h6 Rhe5 e8B Red5 Nge7 Rdc5 Bh5 Rg5 Ng6 Kf7 Nd5 Ke8 Ne3 Kd8
N6N/1np1B1R1/p1pP4/r1Bqqr1k/bbP1Bn2/1Rb5/4N1nB/1N1B1K2 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 exf5 Nf6 h4 gxh4 Qf3 Ng8 Qc6 dxc6 f4 Kf7 c4 e5 b4 h5 g4 a6 d4 h3 b6 h4 d5 e4 g5 e3 b5 h2 f6 Kg6 f5+ Kh5 b7 e2 b6 h3 g6 Kg4 f7 Bd6 f8B Qe7 g7 Rh4 f6 Bf4 f7 Bf5 d6 Nd7 b8N Bc2 b7 Rh5 Ra3 Ba4 Rb3 Ngf6 g8B Be5 Bh7 Nc5 Nd7 Nd5 b8B Nf4 Nb6 Nb7 Be4 Ng2+ Kf2 Bg7 Ba7 Bc3 Bf4 Qe5 Be7 Rf8 Na8 e1B+ Ke2 Rf5 Bc5 Kh5 Bg3 Rg8 f8N Rgg5 Ng6 Bb4 Nh8 Bed2 Nf3 Bdc3 Rg1 h1N Nd4 Nf2 Bf4 Nd3 Bh2 Ndf4+ Kf2 Kh6 Be2 Rh5 Kf1 Rhg5 Bg3 h2 Bd1 h1Q Ne2 Kh5 Bh2 Qg7 Bf2 Ra5 Bd4 Rgf5 Bc5 Qe5 Kf2 Ne1 Rg7 Qf3+ Kg1 Qd3 Kf2 Neg2 Kf1 Qdd5
5rR1/4r2N/b1k1b3/b4BK1/R2PN1N1/2n1n2B/nP4R1/qR1Nb1rB w - - 0 1 legal: proof: c4 a5 e4 b5 a4 g5 axb5 d5 cxd5 f5 exf5 a4 h4 a3 hxg5 Ra7 Qa4 Rxa4 d3 Ra7 Be3 Ra8 Ba7 Na6 Bb8 Nxb8 Kd2 Kd7 Ke3 c5 Kf4 h5 g4 a2 g6 h4 d4 c4 f6 e5+ Kg5 c3 f4 h3 f5 c2 d6 c1B+ Nd2 e4 b6 e3 b7 h2 g7 e2 Bh3 e1R Ne2 Be7 Nc3 Qe8 Nd1 Nc6 b8N+ Kd8 d7 Kc7 d8R Na5 Nd7 Rh7 Ne5 Bb4 f7 Nb3 f8N Be6 f6 Rg1 f7 Ne7 g8B Nd5 Rc8+ Kb6 Rc2 Qa4 Rb1 a1N Rc4 Ne3 Ne4 Be1 Rc2 Kb5 Rg2 Nac2 Ra1 Nd2 Rb1 Rh6 Nh7 Nb4 f8R Qa1 Bf7 Kb6 Bg6 Na2 Rg8 Rf8 Bf5 Rhf6 Nf7 Kc6 Nh6 Rf1 Rhg1 R8f7 Ra8 h1B Ra4 Ra7 Kh5 Rff7 g5 Rae7 g6 Rf6 g7 Rf8 Rg3 Bf3+ Kg5 Be2 g8B Ba6 R1g2 Rg1 Bf7 Ndc4 B7g6 Nb6 Ng4 Bcd2 Bh5 Ba5 Be8+ Kc7 Bc6 Nbd5 Kg6 Nc1 Re2 Nb6 Nh6 Nb3 Nec3 Rd8 Bh1 Nc1 Ne4 Nbd5 Reg2 Rf8 Kh5 Kd7 Rg8 Na2 Ng4 Ndc3 Kg5 Kc6
b1N4q/bRP1N2q/RbB2R2/bb6/R2B3p/3b3N/2P4n/B1q1kN1K w - - 0 1 legal: proof: d4 a5 f4 b5 b4 e5 a4 exf4 Qd2 c5 axb5 Ra6 b6 Ra7 b5 Rc7 Qb4 cxb4 g4 f5 h3 h5 Na3 g5 Nb1 Rc5 dxc5 f3 Bb2 f4 Ba3 Nc6 Bc1 Nce7 h4 Nf5 gxf5 g4 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 Kf2 Kf7 e4 d5 c6 b3 g6+ Kf6 c7 Ke5 g7 Kd4 e5 g3+ Ke1 f2+ Ke2 f3+ Kd1 b2 e6 h4 e7 g2 e8N a4 f6 a3 b7 a2 b8B Bb7 f7 Bc5 f8R Nh6 g8N Ng4 b6 Nh2 Rf5 Ba8 b7 Bb6 Nd2 Kc3 Ba7 b1Q b8R d4 Bb5 f1B Ke1 d3 Nh3 g1B Ne7 Qb4 Nd6 Qh8 Bc6 f2+ Kd1 Qb3 Rf6 Qbg8 Ndc8 Qgh7 Rb7 Ba5 Rb4 Bb6 Ra4 Ba5 Rb1 a1B Rb7 Bb2 Bb6 Ba3 Be3 Bc5 Ba3 Bcb6 Bac5 Bg2 Nf1 d2 Ke2 Be4 Bh6 Bg6 Bg7 d1Q+ Ke3 Bd3 Kf4 Kb2 Bd4+ Kc1 Ba1 Qe1 Bd4 Kd1 Ba1 Ng4 Kf3 Nh2+ Kg2 Qd2 Rf7 Ke1 Bgd4 Qc1 Rf6 Nf3 Rh2 Ba7 Kh1 Bb5 Rg2 Nh2 Rg3 B7b6 Rga3 Bd3 Nd2 f1B Ra2 Bfe2 Nf1 Bb5 R2a3 Bed3 Ra2 Bb4 Ra6 B4a5 Ra4 Ba7 Bdb2 Bgc5 Bd4 Bcb6
6qk/rNR4p/P1R1pb1R/3Nrb2/B1Pq4/b3n1N1/1B1N3q/5KRB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d3 c4 dxc4 g5 Bf4 Ra7 Bc1 Ra8 hxg5 b5 a4 b3 c3 Na6 Qd6 Nb4 Qc5 Nd5 Qa3 b4 Rh3 bxa3 Rh1 Nb4 cxb4 Ra6 Rh4 Ra7 Rh1 Ra8 g4 Kf7 f4 Kg7 g6 d5 a5 b2 g5 a2 a6 e6 b5 d4 b6 d3 b7 Qf6 b8R Bb7 Bg2 d2+ Kf1 Bb4 Ne2 Ba3 Ng3 Qd4 Rh6 Bf8 Bh1 Ra7 Rc8 Qe4 Rc7+ Be7 f6+ Kf8 g7+ Kf7 g6+ Ke8 f5 Qd4 f7+ Kd8 f8N Ke8 f6 Ba3 Rc6 Ne7 g8N Nd5 g7 Kf7 Ne7 Rg8 Nd7 Qg4 Nc5 d1Q+ Kg2 Qf4 Nd2 b1Q Bb2 Qg6 Rb1 Ba8 Nb7 a1B Rc7 Qdc2 Rg1 Qd4 Kf1 Rb8 g8B+ Kf8 f7 Kg7 f8R Ne3+ Ke2 Kh8 Bf7+ Qg8 Be8 Rd8 Kf2 Rd5 Ba4 Rc5 Rfc8 Re5 Nd6 Bc6 Nb7 Be4 Nd5 Bf5 Rc6 Be7 R8c7 Bf6 Bc1 Bb2 Ke2 Ba3 Bb2 Qce4 Ke1 Qh4 Kf2 Qh2+ Ke1 Ng2+ Kf1 Ne3+
N2nN3/rnPR1R1b/r1kNbbn1/2P3K1/8/n1RBB3/RqB1n1N1/1q6 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 dxc5 g5 a4 Nc6 axb5 Nb8 e4 h5 exf5 gxf4 g5 Bb7 Qf3 Bc8 Qg4 hxg4 Kf2 a5 c4 d5 b4 Kd7 h4 e5 b6 d4 f6 g3+ Kf3 d3 Kg4 a4 c6+ Ke6 b5 f3 g6 Kd6+ Kg5 a3 c7 g2 h5 e4 c5+ Kd5 h6 f2 g7 d2 b7 d1Q h7 a2 b6 e3 Bd3 f1B Nc3+ Kc6 Nge2 g1N Na4 Bd6 Rh3 Be6 Nf4 e2 Be3 e1N Ng2 Qc8 f7 Nc2 f8R Ra7 Rf7 Ne7 g8B Ne2 Rhf3 Qb1 Rg3 Nd7 b8R Qb7 Rd8 Nf8 Rd7 Be5 Rh3 Qb8 b7 Na3 Nb6 Nfg6 Na8 Bc3 Rh2 Qb2 Rc1 a1N Rc2 Bd4 Rc3 Nb3 Bc2 Na5 Bd3 Ra6 Bc2 Qa7 Bd3 Qab6 b8N+ Kb7 Bc2 Nec6 Rh1 Q2b5 Rf8 Ngf4 Rd6 Bb3 Nd7 Ng3 Nf6 Bd3 Rd7 Nge2 Bc4 Bf5 B4d3 Bbe6 Ra1 Qb1 Rff7 Q6b2 Nb6 Rha8 Ra2 Nd8 Ne8 R8a7 Na8 Kc6 h8N Be5 Rh7 Nab7 Nf7 Bd4 Rg7 Bh7 Nfd6 Ng6 Rgf7 Bf6+
1R3qR1/q5RN/1BB2nN1/2r4P/RqP5/nnq1r1Bk/N1B4r/b1r2K2 w - - 0 1 illegal: No possible last move, all moves rejected
1b1kbN2/1P5P/2Bp3n/N2RRr2/Bb5q/1N1nNqBK/2r2Br1/3R3n w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Bg7 fxg5 Nh6 g6 Bf8 g5 Ng8 Qg4 hxg4 Kf2 e5 Kg2 a5 b4 e4 h4 g3 c4 e3 h5 d3 g7 d2 c5 d1R g6 e2 f6 e1Q c6 a4 f7+ Ke7 b6 a3 b5 a2 h6 Qc7 h7 Qa7 c7 Qb4 b7 Rd4 b6 Qb2+ Kh3 g2 Nd2 Qc3+ Ngf3 g1B Nc4 Nc6 b8B Rf4 b7 Qad4 Be3 Nh6 g8R Ne5 g7 Rf5 Nfd2 Neg4 Bg2 Bh2 Rad1 a1N Na5 Nc2 Bc6 Ne1 Ndb3 Nd3 Bf2 Ra6 Ba4 Rc6 Rhe1+ Qe4 Re3 Qf6 Ree1 Rc2 Re2 Bg3 Red2 Qf3 Bc6 Nc5 Rd5 Nd3 Ba4 Ke6 Bc6 Bb4 Re8+ Qe7 Ba4 Rg8 f8N+ Kf7 Bc6 Qf6 Ree5 Qe7 Bba7 Ke8 Bab6 Bf4+ Bg3 Ngf2+ Kh2 Rh8 g8B Nh1+ Kh3 Rg2 Be6 Rg8 Ba4 Rg6 Bg8 Rc6 Bf2 Rc2 Be6 Be3 Bc6 Ba7 Ba4 Qd8 Bc6 Ke7 Ba4 d6 Bed7+ Kf6 Bdb5 Bb8 Bc6 Bd7 c8N Be8 Nb6 Kf7 Nbc4 Qf6 Ne6 Ke7 Nf8+ Kd8 Ne3 Qh4+
bKq1rn2/3RN2k/R2n2b1/B2p1Nr1/q1BBN1P1/4B1Rb/qP5b/7N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 Kg7 Ke4 d5+ Ke5 h5 f4 a5 g4 d3 c4 a4 g6 h4 c5 d2 f6+ Kh6 g7 a3 f5 h3 f7 h2 f6 a2 c6 e6 c7 Ra7 b6 Qe8 b7 Bd7 c8N Ne7 Kd6 e5 Kc7 e4 g8N+ Kh7 Nh3 e3 Nd6 e2 Nc3 e1Q Qc2+ Nf5 Nce4 d1B Bc4 Qe3 Rg1 h1B Nhf2 Bc6 Rg3 Qc5 Be3 Bg2 Ne7 Bh3 Nh1 Nd7 Qc3 Ra8 b8R Rg8 Rd8 Bc2 Bd4 Bh6 f8B Bf4 f7 Rg5 Bh6 Nf8 Rd7 Rd8 Be3 Bd3 Bg7 Bb1 Bgd4 Bd3 Rf1 a1Q Qc2 Qa2 Ra1 Qb1 Ra6 Qa2 Qb3 Be5 Qb7 Bc2 Qc8 Ba8+ Kb8 Bf4 Rc7 Qea4 Rb7 Re8 Rd7 Ne6 f8B Bd3 Rg2 Bh2 Rg3 Bb1 Bfg7 Nf8 Bc3 Bc2 Ba5 Bb1 Bgd4 Bc2 Nf7 Nd6 Nh6 Bd3 Nef2 Bf5 Ne4 Bg6 Nhf5 Qxc8+
q2R4/1BKNqP1r/R4n2/N2BN1kP/3q1b1r/Bn1R1n1p/2n4b/N5B1 w - - 0 1 illegal: No proof kernel
5r2/nbkr4/Pq2p1P1/Bp2R1N1/B2n1Rq1/K2N4/1qbq2B1/N2RRN2 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 g5 e5 d5 cxd5 f6 exf6 Ra7 Qg4 Ra6 Qd1 Ra8 f4 Na6 g4 Nb8 h4 Ra5 f5 Rc5 Qf3 Bd7 Qf4 gxf4 g5 Bh6 g6 Bc8 Kd1 Bg5 hxg5 Ra5 Ke1 Ra8 Kd1 Kd7 Kc2 h5 Kb3 b5 a4 c5 d4 f3 g7 f2 f7 h4 f8N+ Kc7 f6 h3 d6+ Kc6 f7 h2 d7 Qa5 d8N+ Kb6 g6 Nf6 g8B Ne8 d5 Nc6 d6 Bg4 d7 Bh3 Bg2 f1Q Nh7 Nd6 f8R Nf5 Bd2 Qe2 Nf7 Qg4 d8R Ra7 Na3 Kc7 Rde8 Qb6 a5 c4+ Ka2 c3 a6 c2 Rd1 c1Q Nc2 Rb7 Nf3 Na7 Rhe1 h1B Nh2 Nd4 Na1 Qc3 Nhg5 b3+ Ka3 b2+ Ka2 Qc1 Ba5 Qd2 Ne5 b1Q+ Ka3 Qf3+ Nb3 Bf5 Nd3 Qg4 Na1 Be4 Bb3 e6 Rf5 Rg8 Nf1 Rf8 Re5 Bf5 Ba4 Be4 Nb2 Bc2 Rb8 Kd6 Nd3 Rd7 Re8 Kc7 Re7 Kc8 Rf7 Kc7 Bh3 Bf3 Rf4 Bb7 Bg2 Qb2+
4r3/1N1k2KN/RB1q1q2/1p3q2/R2q1P1N/1R3P2/B1nr2pB/Bn2Nbq1 w - - 0 1 illegal: No possible last move, all moves rejected
n3NB1R/2nq2P1/K1N2N2/8/2p1nn1R/1bR1p2r/1n2P1RB/B3nBrk w - - 0 1 legal: proof: b4 a5 h4 g5 c4 d5 cxd5 b5 a4 f5 Qb3 g4 axb5 Nd7 b6 Nb8 b5 Bh6 Qb4 axb4 g3 Bg5 hxg5 f4 Rh6 fxg3 Rh2 Ra3 Rh1 Ra8 d4 Kd7 Kd2 Kd6 Kd3 c5 Kc4 e5 f4 h5 f5 g2 f6 b3 g6 e4 b7 b2 g7 h4 b6 g3 Kb5 h3 f7 e3 f8R h2 Rf3 Na6 b8N Ne7 b7 Rh3 Nc6 Qd7 Nd2 b1N b8B+ Nc7+ Kb6 c4 Rf2 Nc3 Ngf3 g1N Rg2 Nd1 Ra3 Nb2 Nh4 Nf3 Rc3 Ba6 Ka5 Ne1 Kb6 Bb5 Kb7 Na4 Bb2 Nc8 Ba1 Ra5 Ne5 Ncb6 Ne4+ Ke7 d6+ Ke6 Nf5 Nb2 Nc6 Ba4 Nf6 Bb3 Rc1 Nba8 Rc3 Re5 Ka7 Re4 Kb7 Rg4 d5+ Kf7 Ka7 Kg6 Kb7 Kg5 Ka7 Qe8 d7 Kf4 d8B Qd7 d6 Rg5 Be7 Rg6 Rhg1 h1N Bf8 Nf2 Rh1 Ne4 Kb7 Qe8 d7 Rg4 d8R Qd7 Rgg1 g2 Nd6 Kg3 Nde8 Rg6 Rh2 Rg5 Rgh1 g1N Rc8 Rh7 Rh4 Nh3 Rg1+ Kh2 Rg2+ Kh1 Rd8 Nb5+ Ka6 Rh8 Rf2 Rg1 Bh2 Nf4 Rg2 Rh6 Rhg4 Rh3 Rh4 Qf5 Rd5 Qg4 Rdh5 Qd7 Rh8 Nbc7+
bb2nb1N/2N2RRP/2R2b2/pb3R1P/2B4B/3rk1Kp/r2qpN2/1B1B4 w - - 0 1 illegal: No proof kernel
3N1r1K/3RpP1p/n1q2B1q/N4B1N/1ppn1N1b/B1P5/1p4R1/k3nR1R w - - 0 1 illegal: No possible last move, all moves rejected
r2B2rr/1qq5/k4Nb1/P2rBR1N/4B3/b1n2pRK/2B2P1N/b2R1bRn w - - 0 1 legal: proof: d4 a5 c4 d5 b4 axb4 g4 h5 gxh5 e5 cxd5 Ra3 d6 Ra7 d5 Ra8 Qd4 exd4 h4 Kd7 a4 c5 e4 g5 e5 f5 h6 b5 h5 d3 a5 f4 h7 g4 h6 b3 Nf3 c4 Bd2 b2 Ra4 g3 Ra1 g2 Bc3 g1R Rh5 b4 Rf5 b3 Nh2 Na6 Nd2 b1B Ne4 Qc7 e6+ Kd8 d7 b2 Bg7 c3 Be5 c2 Nf6 c1B Ra3 Rg3 Bg2 d2+ Kf1 Ne7 Be4 Rgg8 Rg3 d1R+ Kg2 f3+ Kh3 Nc5 Bc2 Bg7 Be4 Re8 Bc2 Rhg8 h8N Ba6 h7 Ne4 Ng6 Nc3 h8R Bc4 Nf4 Bf1+ Kh4 Rd2 N4h5 Rd3 Rh7 Rh8 Rh6 Reg8 Rhg6 Rd1 Be4 Bbd3 Rg1 b1Q R6g3 Qbb7 Kg4 Ba3 Kh4 Qd6 Kg4 Kc7 d8B+ Kc8 Kh4 Qdd7 d6 Qdc7 d7+ Kb8 Kg4 Ka7 Kh4 Ka6 Kg4 Ng6 e7 Nf4 e8B Nfe2 Bf7 Bb1 Bb3 Rd3 Bc2 Rd5 R3g2 Ng3 Kh4 Be2 Kh3 Nh1 Rg3 Bd3 Be7 Bc4 d8R Bb5 Bb3 B1d3 Bc2 Be8 Rd7 Bg6 Bd8 Bf1+ Kh4 Rb5 Rd1 Rd5 Kg4 Bh6 Kh4 Bhc1 Kg4 Bcb2 Kh4 Ba1 Kg4 Bd3 Kh3 Bf1+
rr3N2/1N1B4/1nKb4/q1B1n1B1/1Rq1kppR/Nb2nrPq/2R2P2/3N2B1 w - - 1 2 legal: proof: a4 b5 axb5 c5 d4 cxd4 Qd3 e5 h4 g5 Bf4 e4 h5 Qf6 b4 exd3 c4 Qg6 hxg6 Ke7 Kd2 Ke6 e4 a5 g7 h5 c5 f5 c6 d5 b6 h4 b7 a4 e5 g4 c7 a3 b5 a2 b6 h3 Bg5 h2 Ne2 Ra6 Nec3 Ra8 Na3 Nc6 b8B Nf6 g8N Nd7 b7 Bd6 Ne7 Nb6 Rb1 a1Q Ba7 Bd7 Rb3 Rhb8 c8R Be8 Rb4 Bf7 Ng6 Qa2+ Nc2 Qa5 Na3 Bg8 Nd1 Bf7 Kc1 d2+ Kc2 d3+ Kb3 d4 Nf8+ Kd5 e6 Ne5 e7 Ke4+ Rcc4 Be6 e8N Bg8 Ng7 Bf7 Nge6 Bg8 Nd8 Be6 Nb2 d1R Be2 Re1 Nd1 d2 Bf1 Re3+ Bd3+ Kd5 Rc1 Rf3 Rc2 Nbd7 Bc5 Nb6 Be3 Bf7 Bb5 d3 Bg5 Be6 Bd7 Bg8 Re1 h1Q Kc3 Qh2 Rh1 Qg3 Rh4 Qh3 Nb2 d1N+ Kb3 Ne3 Nd1 Rc8 b8B d2 Bc7 Rcb8 Nb7 N5c4 Kc3 Ke4 Kb3 Be7 Be5 Bd6 Bh2 f4 g3 Bf7 Nb2 d1Q Bg1 Qd4 Nd1 Bg8 Ra4 Qa7 Kb4 Ne5+ Kb5 Bb3 Rac4 Nd3 Kc6 Qa5 Ra4 Qc4 Rb4 Ne5+
2rRqBb1/B4R1B/3nr2P/1B1nN1k1/N2K4/p3nnnp/1RN2R1P/6bb w - - 0 1 illegal: No proof kernel
3B4/1B1p1N1R/1bB2b1N/N1nP2B1/n4P1R/1rpRqq2/rR5K/2kq1b1q w - - 0 1 illegal: No possible last move, all moves rejected
1n2N3/3r4/kb1nB2R/P1BKb1p1/2q2pr1/1B2q2b/1R2RNPN/r2N2bR w - - 0 1 illegal: No proof kernel
2r1N1k1/pN1n4/Rp1Rbq1R/n3NBB1/1b5B/1P1r1P1n/1q4B1/b1N2bK1 w - - 0 1 illegal: No proof kernel
2N3br/8/R3B1R1/1Rn1pb1n/P3n1rk/2BNPqb1/1NBKpp2/1N1b1B2 w - - 0 1 illegal: No proof kernel
2n5/BnR1RNp1/Pn2pn1R/N1r4b/1r6/B1pNP3/Rqk3B1/b1rNK3 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 Qc2 d6 Qg6 d5 Qg5 f6 cxd5 f5 gxf5 Be6 Qg2 Bc8 Qg4 hxg4 h4 Kd7 f4 Kd6 a4 Kc5 d4+ Kc4 f6 Kb3 d6 b5 h5 c5 e3 g3 f5 g2 h6 c4 f7 Ra5 h7 Na6 f6 Nc5 d7 Nb7 d5 Kc2 d6 b3 Nh3 g1R Ra2+ b2 Nf4 b4 Rh4 b3 Nc3 Rc5 a5 Qb6 d8B Bg4 d7 e6 a6 Bh5 Nd1 c3 Nd3 Ne7 Bc7 Nc8 d8N Rg4 Bb8 Rb4 Nc6 Bd6 f8R Be7 Ra4 b1N f7 b2 Ra2 Nd2 Bg2 Ne4 Ba7 Nf6 Re8 Bd6 f8R Qb5 Ra1 b1N Ba3 Nd2 Na5 Nc4 Re7 N4b6 Rff7 Rd8 Rc7 Bf8 h8N Rdd4 Bh1 Rb1 Bc6 Rc1 Bg2 Qb2 Rfe7 Rb4 Ra2 Rg4 Rf7 Rb5 Bh1 Bg6 Rh6 Bh5 Ra1 Qa2 Bb2 Ba3 Rfe7 Rc5 Nf7 Rb4 Bf3 Rb1 Bc1 Bb2 Bg2 Qb3 Ra4 Ba1 Bb2 Rc1 Ra2 Ncd6 Ba3+ Qb2 Bc6 Ndc8 Be4 Nh7 Bg2 Nf6
R1qr3R/P3RqkB/p2b2Pr/3n4/2QNbR1p/4R3/RQRn1bp1/7K w - - 0 1 illegal: No possible last move, all moves rejected
B2kn1BB/4NQ2/qnR1n1Q1/1r3n2/1Pp1Q1K1/2B5/2BrpP2/b3B3 w - - 0 1 legal: proof: b4 a5 h4 f5 c4 d5 cxd5 b5 a4 g5 hxg5 f4 axb5 Ba6 bxa6 a4 e3 a3 exf4 a2 f5 Bg7 Rh2 Bxa1 Rh1 Bg7 Nc3 Bh6 Na4 Bf8 Nb6 Ra7 Na8 Rxa8 Ke2 a1N Kf3 e5 d4 c5 g4 h5 d6 h4 a7 c4 f6 h3 g6 h2 d5 Ne7 f7+ Kd7 g5 e4+ Kg4 e3 g7 Na6 g8Q Nc7 g6 Nf5 g7 Ne8 Nh3 Kc8 d7+ Kc7 Nf4 Rb8 a8B Rh6 d6+ Kb6 Qd3 Nb3 Nd5+ Kb5 Qe4 Ne7 Bd3 e2 Bd2 Nd4 Be1 Qc8 Bc2 Qa6 d8B Nc8 d7 Rd6 Bf6 Rb7 d8Q Kc6 Qb6+ Kd7 Ne7 Rb8 Qbc6+ Kd8 Qgh7 Rb7 g8B Bg7 f8B Rb5 Qhf5 Bh8 B8g7 Nb6 Be5 Rd7 Qf7 Rdd5 Bf8 Bf6 Bg7 Rd6 Bh8 Bg7 Kg3 Rd7 Rg1 h1N+ Kf4 Bf6 Rg6 Ng3 Kg4 Ngf5 Rh6 Bg7 Qcf6 Rd6 Qg5 Rd7 Rc6 Ne6 Qgg6 Rd2 Ba1 Be5 Bd4 Bd6 Bdg7 Be5 Bf6 Bb2 Bc3 Ba1
qbQ1N3/1K1NP2k/2Qbbbr1/5QB1/pN1n1BNq/p7/1P5r/N2B4 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 Nc6 g3 Nd4 gxh4 Nb5 h5 Qd7 Nf3 Qd6 Ng1 Qd8 axb5 f5 e4 b6 h4 Qg5 e6 Bd6 e5 Bf8 Ra5 bxa5 Rh2 Qf6 Re2 Qd8 Re4 fxe4 Kf2 c5 Ke3 g5 d4 a4 h6 a5 e7 Kf7 e8N Kg6 e6 g4 h5+ Kh7 b6 g3 b7 a3 b8N a4 d6 g2 d5 c4 Kd4 c3 Kc5 e3 Kc6 c2 d7 e2 d6 e1B Nd2 Qh4 d8B Bd7+ Kb7 Ra5 Nb3 Bg3 Qf3 Bf2 Na1 Nf6 Qc6 Re5 Nh3 g1B Be2 Be7 Bf4 c1Q Bd1 Ba7 Nf2 Qc2 Ng4 Bf8 Be7 Nd5 Beg5 Qc5 e7 Be6 d7 Bh2 d8N Ne3 Nd7 Re4 Qc8 Qf5 Nc6 Bb8 Nb4 Nc2 Qc6 Re2 Nd3 Rg8 Nb4 Kh8 h7 Qa5 Nc7 Kg7 h6+ Kg6 h8Q Nd4 h7 Bg7 Ne8 Bf6 Qc4 Bg3 Qc6 Rg7 Qf8 Rh2 h8Q Rg8 Bc1 Bgd6 Bcf4 Rg7 Nc7 Rg8 Qc8 Rg7 Qhf8 Kh7 Ne8 Rg6 Qf7+ Bg7 Qf5 Bge5 Bc1 Bf6 Bcf4 Qa8+
5brq/n4R1Q/2k4K/rq1n1nBb/1B4Br/2PPQq2/BB4R1/3QRq2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Bg7 exf5 Na6 b4 Bf8 b6 Nb8 b5 d6 Nc3 d5 Nge2 d4 Nd5 d3 c3 Be6 Nb4 cxb4 Nd4 Bc8 Nc2 dxc2 Ke2 Kd7 Kf3 h5 Kf4 a5 g4 a4 b7 e6 d3 b3 b6 h4 f6 b2 f7 b1Q g6 a3 g7 a2 g5 h3 g6 h2 Bb2 c1R Be2 Rh4+ Bg4 Nh6 g8B Nf5 g7 Ra5 Rg1 h1Q Rg2 Nc6 b8B Na7 b7 Kc6 f3 Qd5 Kg5 e5 f4 e4 Bc7 e3 b8Q e2 Bd8 e1N Qe5 Qh3 Qe3 Nc2 Kg6 Nb4 Bg5 Qc2 Rb1 Qe2 Ra1 Qef3 Rb1 Be7 f8R Qb5 Rf7 Nd5 Ra1 Bf8 Rb1 Ng3 f5 a1Q f6 Nh5 Kh6 Bd7 Qdg1 Rc2 Re1 Be8 Qf1 Rd2 Qfe2 Qb1 Qd1 Rf2 Re7 Rf1 f7 Rg1 Rd7 Qc2 Rb7 Qcf2 Re7 Qf1 Rb7 Bd6 f8B Bg6 Bf7 Bb4 g8Q Ng7+ Bh5 Qh2 Qh7 Qb8 Bd6 Qh8 Bg8 Be8 Rf7 Ba3 Be5 Bf8 Bd6 Rd4 Bg4 Rb4 Rf6 Bh5 Rf7 Rf4 Bb4 Rd4 Be6 Rh4 Bg4 Q1f2 Rf4 Bd6 Bc8 Nc7 Ba2 Qf1 Be7 Nd5 Rh2 Ne6 Rf7 Rg8 Bg5 Ng7 Rg2 Bf8 Bg4 Nf5#
Nn2q1b1/4nR2/1NR2Krp/1r1P2N1/4QnR1/2Q1rP2/QqN2bNk/2b5 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 Na6 a4 Nb8 axb5 Qd7 Ra6 Qd6 Ra1 Qd8 h4 Bb7 d3 Bc8 g5 Rh7 g6 Rh6 Bh3 Be6 Bg4 hxg4 h5 Rh8 h6 Bd7 h7 Bc8 Bh6 gxh6 d6 Kd7 Kd2 c5 Ke3 e5 Ke4 a5 b4 c4 f3 a4 f6 Ke6 b6 a3 d7 a2 d4 c3 b7 c2 f7 c1N b5 g3 g7 g2 b6 Ra5 Ne2 g1B Qc2 Bf2 Rh4 Qg5 Na3 Qe7 Rg4 Nd3 Rc1 Nc6 b8N a1R b7 Qb4 Na6 Rb5 d8N+ Kf6 b8R Be6 Rb7 Nb8 Nf4 Rb1 Rd7 Rb3 Ng2 Bd6 f8N Bc7 Rf4+ Kg5 Nf7+ Kh5 Rg4 Bd6 Rb1 Nf4 Nc7 Bd5+ Kf5 e4 Rd1 e3 Rc1 e2 Ng5 e1Q Na8 Qe8 Qa2 Qd2 Rc6 Re3 Ra7 Qc1 Nc2 Ba3 Nd7 Qa1 Rb7 Bc1 Ndb6 Qb2 Ra7 Nf6 Re7 Rg8 h8Q Bb3+ Rc5 N6d5 Rc6 Bc4 Qh7 Rh8 g8Q Bb3 Qhg7 Rh7 Qf6 Rg7 Qge6 Bc4 Qe4 Bb3 Rf7 Bc4 Qfe5 Ne7+ Kf6 Bb3 Rf8 Bg8 d5 Bg3 Nge1 Bf2 Rg2 Kh4 Qc3 Nf5 Rf7 Ne7 Rh2+ Kg3 Rh4 Qb4 Rg4+ Kh2 Ng2 Qb1 Nh4 Qb2 Ng2 Rg6+
k3Kn2/1N5Q/5p1P/2R5/1Q1R1N2/r1qPn2n/bNb1N2R/bq1r1rQN w - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 h5 a4 b5 axb5 g6 f4 Nd7 b3 Nb8 Bh3 Bc5 Ba3 Be7 Bc5 Bf8 Be3 g5 fxe5 Nh6 Bf4 gxf4 g5 Ng8 Bg4 hxg4 Kf2 Kd7 e4 a5 h4 c5 g6 Kc7 b4 Kb7 d6 c4 g7 f6 b6 g3+ Kf3 g2 h5 c3 d7 c2 Kg4 c1R Kf5 a4 Kg6 f3 Kf7 a3 e6 f2 e5 f1B d3 a2 e7 Nc6 e8N Rc5 b5 Na5 e6 Nb3 h6 Rc3 e7 Ra5 Nh3 g1Q Rh2 Ra3 Nf2 Nc1 Nh1 Ka8 Nd6 Ne2 e8N Nf4 Nb7 Bc5 Ned6 Bd4 Nc4 Qc7 Ke8 Rc1 d8N Be6 Nb2 Nh3 Nc3 Ne7+ g8Q Ng6 Ne2 Nf8 Qh7 Rg8 Rb1 Bc4 Ne6 a1N N6f4 Nc2 Qe1 Rd1 Rc1 Ba2 Qg3 Ne3 Rc5 Qf2 Qg1 Qe1 Na5 Rg3 b7+ Ka7 b8R Rf3 Rb7+ Ka8 b6 Qc6+ Rd7 Bg2 Nh5 Rf1 Nb7 Bgd5 Nhf4 Qc7 Rd6 Bdb3 Rdd5 Bc3 Rd4 Bc2 Na4 Qf7+ Kd8 Ng4 Nd6 Qb3 b7+ Ka7 Ke8 Ne3 b8Q+ Ka6 Nf5 Qb1 Nd6 Ba1 Qb4 Qc3 Nb7 Ka7 Nb2 Ka8
r4bkb/1KRQqbNp/1B1b1Q2/4qP2/r5PN/1Q2NQ1n/Q6Q/4bn2 w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 b4 f6 e4 Nc6 d4 Nb8 d5 Qe7 Ra3 Qd7 Rd3 Qd8 Rd4 exd4 e5 f5 Bd3 Bg7 Bc2 Bf8 Be4 fxe4 Kd2 Kf7 f4 a5 g4 c5 b6 e3+ Kd3 a4 Kc4 d3 Kb5 a3 e6+ Kg7 f5 d2 b7 c4 g6 a2 e7 a1B d7 c3 d6 c2 Nf3 e2 Na3 e1B Nh4 Bb2 e8N+ Kh6 g7 Bf2 Nc4 Ne7 g8Q Ng6 Qf3 Qe7 d8Q Be6 d7 Bf7 Ng7 Be1 Kb6 Na6 b8Q Nc5 b5 Ne4 Qh2 Ra4 Ne3 d1Q Kb7 Qdd6 b6 Ng3 Bd2 c1B Ba5 Qee5 Qf6 Nf1 d8Q Qde7+ Qd7 Ba3 Qa2 Bd6 Rh2 Bca3 Rc2 Bb2 Rc7 Bbc3 Ka8 Bb2 b7 Ba1 b8Q Bac3 Qfe6 Bd4 Qeb3 Nf4 Kb7 Nh3 Bb6 B6c5 Rc8 Q5e6 Nh5 Bfg7 Qbh2 Bd6 Rc1 Bb2 Qc8 Ba1 Qcc7 Rha8 Qcc4 Bf8 Qd4 Bb2 Rc7 Bbc3 Nf6 Kg7 Ne8+ Kg8 Qde5 Q6f6 Qee6 Qd4 Qh6 Qc5 Qg6+ Bcg7 Qf6 Bh8 Ng7 Qce5
1rb5/1BN1pQ2/1QrBN1NP/3Bn2r/1B1Q4/2BnrPK1/6r1/1qbkq3 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 d5 c4 g4 cxd5 g3 f3 Ba6 Na3 Bb7 Nb1 Bc8 b4 Nd7 Ra6 Bg7 Re6 Bf8 Re2 Nb8 Rf2 gxf2+ Ke2 h5 h4 Rh7 g4 Bh6 g5 Rh8 Rh3 Bg7 Rg3 Bf8 Rg4 hxg4 d4 Kd7 f6 Kd6 b6 a5 b7 c5 b5 a4 g6 a3 f7 c4 b6 a2 h5 a1Q h6 c3 g7 c2 Nh3 g3 Ba3+ Kd7 d6 Kc6 d5+ Kb5 d7 Kc4 d6 Kb3 Qd4 c1R Bb4 Kc2 Nf4 g2 Ng6 g1R Nc3 Ra5 Nd5 Na6 b8Q Qb1 b7 Nf6 g8B Ng4 Nc7 Bg7 f8Q Rh5 Bd5 Ne5 Qf7 Nc5 Qa7 Qg8 b8B Ncd3 d8N Rg2 Ke3 Kd1 d7 Rc6 Nde6 Rgh2 Bh3 f1R d8B Rhf2 Qab6 Bf6 Ke4 Bg5 Kf5 Re1 Bf1 Nd7 Kg4 Ne5+ Kg3 Bc1 Bh3 Ree2 Bf5 Re3 Bfe4 Rd6 Bb7 Rc6 Bd5 Qh7 Nb5 Qg7 B8d6 Qf6 Bc3 Qf5 B8c7 Qe4 Ba3 Re8 Bcd6 Rd8 Nbc7 Rg8 Qdc5 Qeb4 Qd4 Rh8 Bcb2 Qe1 Bab4 Bd7 Qdf4 Rb8 Qfd4 Bc8 B2c3 Rg2+
2Nr1Bk1/1N1NQn1q/bB2NQ2/5n1r/1Q2q3/P1K2nb1/p2P2n1/3Br2N w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 h5 g4 b4 gxh5 b3 h4 a5 a3 Qd6 Ra2 bxa2 b4 Qf6 b5 Qd6 Rh3 Qd7 Rb3 Qd8 Rb4 axb4 f4 Kf7 d6 c5 f6 g5 d7 e5 b6 b3 b7 c4 h6 g4 f5 g3 h5 b2 h7 g2 h6 c3 Qa4 e4 Qb4 e3 Be2 c2 Bd1 e2 Nh3 g1N Nc3 b1Q Nd5 Na6 b8N Qe7 d8N+ Ke8 Nb7 Kf7 Bb2 c1N Nf2 Qd3 Nh1 Qc4 Nd7 Qg4 Bd4 Nb3 Bb6 Nd4 Nf4 Qg7 Ne6 Nc5 Kf2 Ngf3 Ke3 Nd3 Ke4 e1R+ Kd5 Nb5 Kc4 Nbd4 Kc3 Qd8 Ba4 Bd6 Bd1 Ke8 f7+ Ke7 f8N Kf7 f6 Nf5 Ng6 Bg3 Ne7 Qe8 Nbc5 Ba6 Nc8 Nf4 Nb7 Ng2 Qe7+ Kg6 Qb4 Qge7 f7 Qh4 f8B Kf7 Na7 Rd8 Nc8 Qe4 Qe7+ Kg6 Qb4 Qf7 Qe7 Nf6 Qb4 Ng4 Qe7 Nge5 Qb4 Rg8 h8Q Qh7 Qe7 Nf7 Qd4 Qh8 Qdf6+ Kh7 Qb4 Rg5 Qe5 Kg6 h7 Qg8 h8Q Rh5 Qhf6+ Kh7 Qc7 Qh8 Qcc5 Kg8 Qe7 Qh7
2Nn1B1K/1r3N2/Q5nQ/1bN1p1BP/Q1qb2P1/1r4Nk/1b1b2pb/N2B4 w - - 0 1 illegal: No proof kernel
Bq1k4/7b/4R2p/n1R2R2/2BrK1PP/2R1RnQq/2rp2QB/1Q1qn1n1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Ba3 d4 Kf8 Nd2 Nd7 Ndf3 Be7 d6 Nb8 d5 Ke8 Nd4 Bf8 e4 exd4 f4 g5 e5 Qe7 e6 Bg7 Ne2 Be5 fxe5 Qd8 Nf4 gxf4 Kd2 f5 Kd3 a5 b4 c5 h4 f3 g4 f2 b6 a4 e7 f4 b5 f3 b7 c4+ Ke4 a3 b6 d3 Qc2 c3 Bf4 h6 Rh3 a2 Rc1 a1N Bh2 Nd7 b8Q Ra2 b7 d2 Qa8 Qc7 Qb1 c2 Bc4 f1Q b8Q f2 Rc3 Qh3 Re1 c1N Ree3 f1Q Q8b3 Kf7 e8R Rc2 Re6 Ne7 Qbb8 Ke8 Qab7 Nb6 d7+ Kd8 Q7a8 Qa7 Qd6 Nc6 Qa3 Kc7 d8R Na5 Rf8 Qd1 Rf5 Ne2 d6+ Kd8 d7 Qb8 Qd6 Ng1 Qd3 Kc7 d8R Nd7 Rg8 Ba6 Rgg5 Rd8 Kf4 Bb7 Rf8 Nb6 Qd6+ Kc8 Rff6 Be4 Rf7 Bd3 Qg2 Rc1 Rff6 Bh7 Rh5 Bg8 Ke4 Nc2 Rf7 Ne1 Rf8 Rc2 Rf7 Qa7 Rc7+ Kb8 Rf5 Bh7 Rc5+ Kb7 Rf6 Qa8 e6 Qb8 e7 Rd7 e8B Rd8 Qc1 Nd7 Re6 Ne5 Bc6+ Kc8 Qb1 N5f3 Qdg3 Rd5 Bb7+ Kd8 Ba8 Rd4#
3B3Q/1n1r2Q1/N1N3qK/qq6/1QNn2k1/q1rpQp1b/p1P2P2/1B2BQ2 w - - 0 1 legal: proof: d4 c5 a4 b5 axb5 g5 e3 d5 dxc5 d4 Ke2 d3+ Kd2 Bg7 Ke1 Bd4 exd4 Qc7 Qd2 Qd6 Qd1 Qd8 g4 h6 b4 Kd7 h4 Ke8 h5 Qb6 Rh4 Qd6 Ra6 Qd8 Rd6 Qc7 Rd5 gxh4 g5 Qb6 g6 Qd8 Rg5 hxg5 Kd2 Kd7 Ke3 Ke6 g7 Kf5 h6 a5 d5 e5 d6 e4 d7 h3 b6 f6 c6 g4 c7 a4 b5 h2 b7 h1Q b6 g3 h7 a3 Nf3 g2 Nbd2 g1Q Nc4 Ra7 Nfe5 Ne7 g8Q Nec6 Bd2 Qe8 d8B Qgg6 Be1 Na5 Qg7 Qb5 Bg2 Nbc6 b8N Nd4 Nec6 Nb7 Na6 Be6 Qd2 Kg4 c8Q f5 Qc1 Re8 h8Q Qh4 Qb8 Qe7 Qbe5 Qf8 Qb1 Re7 Qb4 Rd7 Qh1 Ra8 Qf1 Rc8 Qec5 Nd6 b7 f4+ Kd2 Qe7 b8Q Nb7 Qbe5 Rcc7 Qh8 Qd6 Qeg7 f3 Bh3+ Kf4 Bg4 Qf8 Bh5 Bh3 Bg4 Qfd6 Be6 Qe7 Bf7 Kg4 Ke3 Qd6 N4a5 Qf8 Ba2 Qe7 Bb1 a2 Qb6 Qec5 Qa7 Qc3 Nc4 Qa3 Qhf8 Kh5 Kf4 e3 Qfg8 e2 Qac5+ Nf5 Qe3 Nd4 Bc3 e1Q Q8f8 Qec1 Be1 Qaa5 Qfh8+ Qh7 Na7 Rc5 Nc6 Qca3 Nb2 Rc3 Nc4 Qh6+ Ke4 Nc5+ Ke5 Qh7 Kf6 Kh4 Qge7 Qh5 Kg7+ Kg4 Qf7 Qf5 Kh6 Nb7 Qfg7+ Qg6+
b1QQB3/1r4Pb/kBpb3p/p1Rr1B1P/3Q2NK/1n1n4/p7/1Q2QQ1r w - - 0 1 legal: proof: c4 e5 f4 d5 cxd5 g5 fxe5 Na6 b4 Nb8 a4 Qf6 Ra3 Bg7 Rf3 Bf8 Rf4 Qd8 a5 gxf4 b5 Qf6 Nc3 Be7 Ne4 Qb6 axb6 Bd6 Nc5 Bf8 Na6 bxa6 Kf2 Kd7 e4 f5 h4 f3 Kg3 h6 d4 a5 e6+ Kd8 b7 f2 h5 a4 b6 a5 e7+ Kd7 e8B+ Kd8 e5 f4+ Kh4 a3 g4 f3 g5 c6 e6 a2 d6 Be7 d7 Bf8 g6 Bc5 d5 Ra7 g7 Nf6 Be3 Ra6 Bd3 f1B Nh3 f2 Bf5 Bd3 Qf1 Ng4 Rg1 Ne5 Rg5 Ra8 Bd4 Na6 b8Q Bd6 b7 Ra7 Bb6+ Bc7 Qa8 Nc5 b8Q Rb7 Qa6 Nb3 Qb1 f1R Nf2 Nc4 Ng4 Nb2 Qc4 Re1 Qb5 Be4 Qf1 Nd3 Qa7 Rb8 Qa6 Bb7 Qc4 Ba8 Qa4 Ke7 Qd4 Kd6 e7 Rg8 Ba7 Rb7 Bb6 Bb8 d8Q+ Rd7 Qc8 Rb7 Bed7 Rd8 e8Q Rd1 Bg6 Bf5 Qee1 Bc7 Bge8 Bh7 Bf5 Bb8 Qda1 Rdd7 Bc7+ Kc5 d6 Kb5 Qd4 Rd8 d7 Ka6 Bb6 Bd6 Be4 Rd2 Rc5 Re2 B4g6 Re5 Bf5 Rd5 Beg6 Re8 d8Q Re6 Be8 Rg6 Nf6 Rg1 Ng4 Rh1+
4Kb2/r1pQ1p1k/R1n1b3/2Q2ppq/5rPr/r3QQB1/2Pn2Q1/1BRB3R w - - 0 1 illegal: No proof kernel
2br2B1/RP6/1pK2Qb1/brB5/1q1nB1PB/qB3qR1/2B2k2/RB5b w - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 g5 a4 e5 f4 g4 fxe5 g3 a5 Ne7 Nc3 Bg4 Na4 bxa4 hxg3 Bd7 g4 Ng8 g5 Bc8 d4 c5 b5 c4 b6 Ke7 b7 Nh6 Nh3 Na6 Nf4 Nc5 dxc5 Bg7 Ne6 Ke8 Nf8 Ng8 Nd7 Bf8 Nb6 axb6 Kd2 Kd7 Kc3 h5 Kd4 f5 g4 a3 e4 a2 d6 Ke6 c6 c3 c7 f4 g6 f3 g7 c2 a6 h4 a7 h3 d7 f2 Bc4+ Ke7 Kd5 f1B e6 Kf6 e5+ Kg6 e7 h2 e8B+ Kh7 e6 Qf6 d8B Bb4 e7 Ba5 Qf3 Bd3 Ba4 Kg6 Be3 c1Q Bcb3 Qe1 Bc5 Kg5 e8B Kh4 Bec6 Qb4 Rhg1 h1B Rg3 Nh6 g8B Bg6 Bde7 Rb8 a8R Nf5 Ra7 Rh5 Bc2 Rg5 Bab3 Qf8 Bb1 Nd4+ Kd6 Ra8 Bce4 Qf7 B3c2 Qfb3 Qf6 Qf3 Rg2 Kh3 Rg3+ Kh2 Qf7 Rh5 Bh4 Rb8 Qf6 Ra8 Rh3+ Kg1 Rg3+ Kf2 Bcb3 Bd7 B1c2 Rd8 c8B Be6+ Bd7 Re5 Kc7 Rh5 Bb5 Bc8 Bbd3 Re5 Rag1 a1Q Rc1 Qaa4 Ra1 Red5 Bb1 Qaa3 Bdc2 Ke1 Bf8 Rb5 Bc5 Nf5 Kc6 Ke2 Be7 Kf2 Bc5+ Nd4+
B3NNN1/2p2n1B/4r3/1N4P1/b2rN1kB/1rRnpN2/2r4P/1K1Nq1r1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 e4 a5 exf5 g6 b4 Bg7 a3 Bd4 a4 b5 axb5 a4 Ra2 Ba7 Ra1 Bb6 g4 h6 f4 g5 f6 Kd7 f5 Ba5 bxa5 Ke8 Qf3 h5 Qf4 gxf4 g5 Bd7 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Kd1 Kd7 Kc2 e5 d4 g3 f7 e4 f8N+ Ke7 b6 a3 d6+ Kf7 d5 a2 d7 a1R a6 f3 f6 g2 b7 e3 d6 f2 a7 Ra4 Nh7 Ke6 f7 Kf5 f8N Ra1 Nc3 Rb1 Bd2 Kg4 Nd1 Rb4 Nf6+ Kf4 Nf3 g1R Ne8 Rb1 Bd3 f1R Be1 Rb3 Bh7 Qf6 d8N Rb6 d7 Qa1 Nc6 Na6 d8N Rb3 b8N Bd7 Ncd4 Ba4 Nb7 Kg4 Nb5 Nc5 Bh4 Nh6 N7d6 Nf7 Ne4 Nd3 Nc6 Rd8 a8B Rd4 Ne7 Re1 Ng8 Ref1 Bg6 Rh6 Bh7 Ra6 Ndc3 Qe1 Nd1 Rc3+ Kb1 Re6 Bb7 Rg2 Ba8 Rff2 Rg1 Rfc2 Rf1 Rg1 Rf2 Ra2 Rc2 Rca3 Rc5 Rc2 Rc3 Rb3+
n1bN1NK1/3R1R2/3RR3/pk1BN3/1P1PrbR1/n2qRRn1/r1r2b2/4r3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 h6 b3 Kf7 Qf3 Ke8 Ba3 Nd7 Bd6 Nb8 Bf4 Bg7 Qg3 gxf4 g5 Bf8 g6 Na6 Qg4 Nb8 Qg5 hxg5 Kf2 Kd7 Kf3 c5 Kg4 e5 h4 a5 d4 e4 g7 e3 b6 f3 b7 f2 b4 c4 h5 c3 f7 e2 h6 e1B Kh5 c2 Kg6 c1N h7 g4 d6 Kc6 f6 g3 d7 g2 Rh3 Qc7 d8N+ Kb6 Nc3 Qc5 Nb5 Qe7 Nc7 Nd7 Re3 Nb3 Bc4 f1R Nce6 Bf2 Nf3 Re1 Ne5 Nh6 g8R Nf5 Bd5 Bh6 f8R Ng3 f7 Bf4 Kg7 Kb5 b8R+ Nb6 Rb7 g1R Rd7 Rg2 Rc1 Nd2 Rc6 Nb1 Rcd6 Rh2 Re8 Ra7 Nf8 Na3 Rf3 Qh4 Ree6 Rc7 Re3 Bg5 Rd3 Qe4 Re3 Qd3 Nfg6 Na8 f8R Rc4 Rff3 Bg1 Nf8 Ra2 Kf7 Bh6 Rg5 Rg8 h8R Rcc2 Rh7 Bf2 Rgg6 Rh8 Rhg7 Rh7 Kg8 Bg5 Rge7 Rh4 Ref7 Re4 Rgg7 Bh6 Rg4 Bf4
2bRqnRR/Nk4nQ/r3qP1b/Q2K4/2R3P1/r1b3b1/3n1Q2/1B1Q1bR1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 b3 Bg7 f5 Bh6 Nc3 Bf8 Nce2 h6 Nf4 h5 g4 h4 Ba3 gxf4 Bc5 Bb7 Bf2 Bc8 Bg3 hxg3 Ke2 Kd7 Kd3 c5 Ke4 Kc7 h4 e5 d4 a5 d6+ Kb7 d7 a4 f7 c4 d5 g2 h5 f3 b4 a3 h6 a2 d6 c3 h7 f2 b6 c2 b5 c1N Bd3 f1B Bb1 Qc7 d8Q Ra7 d7 Ra3 Kd5 e4 Nf3 g1B Nd4 e3 Nc6 e2 Na7 Bh6 f8Q Bf2 Rg1 e1Q f6 Ra6 Qc5 Bg3 Qf2 Nb3 Qe7 Nd2 d8R Nd7 Qa3 Bg7 Qa5 Nh6 Rg8 Qe2 Rd8 Rg8 h8Q Nf5 Qh7 Rh8 Rg8 Bh6 Rd8 Ng7 Rg8 Kb8 b7 Qb6 Rd8 Kc7 b8R Qe8 Ra8 Nf8 Rb8 Bf5 Rbc8+ Kb7 Rc4 Qbe3 b6 Bc8 Rh1 Kb8 b7 Qb3 Bd3 Rg8 Rc1 a1B Bb1 Qa2 Rg1 Rh8 Rc3 Bb2 Re3 Bc3 Re5 Qb3 Rh5 Qb6 Rd4 Kc7 b8R Rg8 Ra8 Kb7 Rc4 Qbe6+ Kc5 Ng6 Ra4 Q8f7 Rdd4 Rd8 Qde2 Ba1 Rd3 Bhf4 Qg8 Bd7 Rh8 Bh6 Qd1 Bb2 Qh7 Rc8+ Kb4 Rc3 Rag8 Bc8 Rdd8 Ra3 Kc5 Bc3 Rad4 Qfe8 Rc4 Q6e7+ Kd5 Nf8 Qaa4 Qe3 Qa5 Q3e6+
2K3BQ/B1BPQ2b/1QRQp3/Q3rr2/rqP1qn1r/6N1/1n2Bb2/2k3b1 w - - 0 1 legal: proof: b4 b5 e4 c5 c4 g5 h4 f5 hxg5 d5 exf5 d4 a4 Bg7 Nc3 dxc3 Rb1 Qc7 axb5 Bf8 b6 Qd7 b5 Qd8 Rb4 cxb4 Ke2 Kf7 Ke3 a5 Kf4 h5 Ke5 h4 g4 c2 d4 b3 f4 b2 b7 b1R g6+ Kg7 d5 Kh6 d6 h3 g7 h2 b6 a4 f6 a3 f7 a2 Be2 a1R Qd5 Bf5 d7 Bh7 Qa5 Ra4 Be3 Na6 b8B c1B b7 Nf6 g8Q Nh5 f5+ Nf4 f6 Nb4 Bea7 Qb6 Bc7 Re8 b8Q Be3 Qd8 Bg7 f8Q Rf1 g5+ Kg6 Qb8 Bf2 Qgd5 Bh6 f7 Qc5 Qbb6+ Qd6+ Ke4 Nbd3 Qg8+ Bg7 f8Q Nb2 Qge6+ Bf6 Qdc6 Qb4 Qcd6 Rd1 Qh3 Rd5 Qhe3 Re5+ Kd4 Kf5 g6 Kg5 g7 Rf5+ Ke4 Bd4 g8B Bg6 Qc3 Rh4 Qf7 Bc5 Qh8 Bh7 Qfe6 Bce3 Qee5 Ng6+ Kd5 Nf4+ Kc6 Bd4 Bd3 Kg4 Ne2 Kf3 Rd1 h1Q Kb7 Bg1 Ng3 Bdf2 Bf1 Qg2 Rd4 Qh1 Qeg7 Qg2 Be2+ Ke3+ Qc6 Qe4 Rd6+ Qd4 Qcd5 Kd2 Rc6 Kc1 Qd6 Qe4 Qg5 e6 Qgf6 Rf8 Qfe7 R8f6 Kb8 Re5 Kc8 Rff5
1Q4n1/1p6/R4R2/1PPn2Rq/1rR2BNQ/bk3nrp/6Q1/2nKrRbQ w - - 0 1 legal: proof: d4 a5 e4 g5 e5 f6 exf6 a4 b4 c5 dxc5 Qc7 Bc4 Qd8 Bb3 axb3 g4 d6 f4 Nc6 f5 Ra4 Nc3 Ra3 Nce2 Ra6 Nf4 gxf4 Nf3 Be6 Ng1 Bd5 h3 Bf3 g5 Bg4 hxg4 Nb8 Rb1 Ra3 Ra1 Ra8 a4 Kd7 c4 Kc6 g6 e5 g5 h5 g7 d5 g6 b2 a5 b1N f7 d4 f6 e4 a6 h4 a7 e3 Qe2 f3 Qc2 d3 Kd1 d2 Qe4+ Qd5 Nh3 f2 Rf1 Na6 Qh1 Nc7 Ra5 Re8 a8Q Re4 Qb8 Bd6 f8R e2+ Kc2 d1R f7 e1B Bf4 Qh5 b5+ Kd7 c6+ Ke6 Ra3 Nd2 Ra6 Nd5 c7 Nb3 c8R Nc1 Rcc6 Red4 Rfc8 R1d3 f8Q Rg3 Qd8 Bb4 Qg5 Bc5 Rf8 Re4 Rf5 Re2+ Kd1 Bb6 Rc7 Ba3 Qg4 Re5 Rg5+ Kd6 Rf7+ Kc5 Rf6 Kb4 c5 Bc7 Be3+ Kb3 Bf4 Nge7 g8Q Re1+ Kd2 Be5 g7 Bd4 Qh7 Rf8 g8R Re8 R8g6 Ng8 Rh6 R1e4 Kd1 Be3 Ra4 Rb4 Q7e4 Bd4 Qeg2 Re4 Rfa6 Re2 Rhf6 Re8 Rg1 f1N Nf2 Nh2 Rf1 Nf3 Q4h3 Re6 Ng4 Bg1 Q3h2 Rbe4 Rc4 Re7 Rc2 Rb4 Rc4 h3 Qf2 Rg2 Qh4 Rg3 Q2g2 Re1+
1R4N1/4Q1n1/2PB3p/2nb1p1B/Q1Qpr2Q/br1n1Pr1/4Bkq1/3K1B1B w - - 0 1 legal: proof: d4 b5 g4 c5 b4 e5 dxe5 h5 bxc5 b4 g5 b3 axb3 Bd6 b4 Be7 b5 Bf8 h4 Rh7 Nd2 Ne7 Ne4 Ng6 Ra6 Ne7 Rh6 Ng8 Nf6+ Ke7 Ng4 hxg4 h5 Ke8 Re6+ Qe7 h6 Rh8 Rb6 Qf6 h7 Qd8 Rbh6 gxh6 c4 Ke7 e4 Ke6 c6 f5 c5 a5 g6 d5 b6 d4 g7 g3 b7 g2 c7 a4 c6 a3 Ne2 g1R Bf4 a2 Ng3 a1N Qa4 Nc2+ Kd1 Bd6 Nh5 Nd7 b8Q Ngf6 g8B+ Ke7 e6 Ne5 Qbb3 Qd7 Qbc4 Nf3 e5 Ne8 Nf6 Na1 Bh2 Ba6 c8B Rg3 Rg1 Bb5 Ba6 Nb3 Bf7 Rhg8 h8Q Ne1 Rh1 R8g4 Ng8+ Kf8 Be2 Nc5 Qf6 Rb8 Qh4 Kg7 e7 Re4 Bd5 Kg6 e6 Ng7 e8B+ Qf7 e7 Ned3 Kd2 Rb7 Rb1 Rb8 Kd1 Rb6 Qh3 Kg5 Bf1 Kf4 Qh4+ Kf3 Rb2 Qe6 Bh5+ Rg4 e8Q Qg6 Be2+ Kg2 Be5 Rg3 Rb3 Bf8 Bd6 Qg5 Qe7 Qg4 Qc2 Bc4 Rb2 Ba2 Qcc4 Rb3 Rb1 Ra3 Rb8 Rb3 Bdf7 Qg6 Bhf3+ Kg1 Bh1 Qg4 f3 Kf2 Bb5 Qh3 Bh5 Qg2 Qc7 Be7 Ba6 Bg5 Qe7 Bc1 Bf1 Ba3 Qc1 Nf4 Bae2 Nfd3 Qc2 Rb2 Qc3 Bd5 Qcc4 Rb3
b2Qn2k/Q7/1q1pBK2/3P1Rp1/1b5P/n1BQB1q1/B1Qp1b2/qNr4B w - - 0 1 legal: proof: g4 a5 b4 f5 f4 e5 fxe5 c5 d4 h5 a4 f4 Nc3 Nf6 Nd5 Ng8 Ra3 Ra6 Rg3 Rf6 Rg2 Rf5 gxf5 Qb6 Rg4 Qc7 Nc3 Qd8 d5 hxg4 Nb5 b6 Nd4 b5 axb5 cxd4 Kd2 Kf7 Kd3 g5 Ke4 Kg7 h4 d3 c4 g3 f6+ Kh7 Kf5 f3 e4 a4 b6 f2 c5 g2 e6 a3 c6 a2 b5 a1Q e5 d6 f7 Ne7+ Kf6 Qa8 c7 Qa7 b7 Nf5+ e7 Na6 b8Q Bh6 f8B Nb4 b6 Qa3 e6 Ng7 b7 Nc6 Ne2 g1B Be3 d2 Nc3 Qd7 e8B Qa4 e7 Qb3 Qa7 Kg8 b8Q Na5 Bh5 Qb6 e8Q Nc4 Qg6 Qh3 Qd3 Na3 Bf3 Bb7 c8B Qg3 Nb1 Ba8 Q1c2 Rh7 B1e2 f1Q Be6+ Kh8 Qd8 Bf2 Rg1 Qe1 Bh1 Qd1 Rf1 Ne8+ Kf5 Rc7 Bg7+ Kh7 Be5 Bg7 Bc3 Kh8 Kg6 Bg1 Rf5 Bf2 Qda6 Qc1 Bc4 Qcb2 Ba2 Qa1 Qad3 Rc6 Ba5 Bc3 Kf7 Bb4 Kg6 Bc5 Bc3+ Qe5 Bcd4 Bg3 Qcb3 Bb4 Qd1 Rc2 Bc3 Rc1 Q1c2 Bf2 Qde7 Ng7 Qec7 Qf4 Kf6 Qg3 Qd8+ Ne8+
b4b2/n2R2Rp/nRpqk2q/2Rb3P/1R6/1K1R3r/Q3NPRQ/Nn4q1 w - - 0 1 legal: proof: e4 a5 c4 d5 a4 g5 d4 b5 axb5 f6 h4 g4 e5 Bd7 g3 Bc8 e6 Bb7 Bf4 Ra6 Be5 Rd6 Bh3 Rd7 exd7+ Kf7 cxd5 gxh3 d6 fxe5 d5 Bc8 Kd2 e6 Kc2 e4 b4 c6 h5 e3 b6 a4 b7 e5 b5 a3 g4 h2 g5 e2 b6 e1Q g6+ Kf6 g7 a2 Qd2 e4 Kb3 e3 Na3 e2 Rb1 a1Q Qa2 Qe8 d8R Qg6 d7 Ke5 d6 Ke6 Nc2 Qd4 Na1 Ne7 g8R Qf4 Rg7 Na6 b8R Rg8 b7 Qgh6 Rc1 Qf1 Rc5 e1N Ne2 Nf3 Rhg1 h1B R1g2 Qg1 Re8 Qd4 d8R Qdd2 d7 Qd6 R7g4 Rg5 Rb4 Rg3 Rb6 Rh3 Rb4 Bg7 Rg8 Bf8 R8g7 Qf6 Ra8 Qh6 b8Q Bb7 Qc7 Nc8 Rb8 Ba8 R8b6 Na7 Qb8 Qd4 Qh2 Qd6 Rdb8 Qd4 d8R Qd6 R8b7 Nd2+ Kc2+ Kf6 Rbd7 Nb1 Kb2 Qg3 Rd3 Qd6 Kb3 Ke6 Rdd7 Re3 R2g5 Rh3 Rgg4 Be4 Rg2 Bd5+
1q1N1q1b/Q1NN4/2pN1q1R/8/pR4Nq/1R1r2n1/Pb2PR1K/3knR2 w - - 0 1 legal: proof: c4 e5 b4 c5 bxc5 e4 c6 d6 c7 e3 fxe3 Kd7 e4 Ke7 e5 Ke8 g3 Qf6 c5 Be6 c8N Qh4 c6 Bb3 c7 Qd8 Bg2 Ba4 Ba3 Bc6 Bc5 Bd7 Bc6 dxc5 g4 bxc6 h3 a5 Ne7 g5 Nf3 f5 Ng1 f4 Nc8 Bf5 gxf5 g4 Qb3 g3 Qd1 Nf6 Kf1 Rg8 Ke1 Rg4 hxg4 Ng8 Rh5 Ne7 Rh6 Ng8 Rh1 Qd3 Na3 Be7 Nb5 Kf8 Nh3 Nh6 Na3 Na6 Nb5 Kf7 Nca7 Rh8 Na3 Ke8 Nb1 Ng8 Ng1 Qd8 Nc8 Nb8 Kf1 Bd6 Ke1 Bf8 Kf1 Kd7 Kg2 h5 d4 f3+ Kh3 a4 g5 c4 f6 Ke6 g6 Kd5 e6 Ke4 e7 Ke3 e8R+ Ne7 d5 c3 f7 f2 d6 f1Q+ Kh4 g2 Kh3 h4 d7 c2 g7 c1B g8N Qf6 Kh2 h3 Na3 Na6 Nf3 Nb4 Nd6 Nc2 c8R Bg7 f8R Ne1 Rb8 Bb2 Rb4 Qb8 Ne5 Nf5 d8N Ng3 Nab5 Rh4 Nc7 Bh8 Qb1 Kd2 Nd7 Rd4 Qh7 Rd3 Nh6 Kc2 Rc1+ Kd2 Rc3 Kd1 Re5 Qe7 Rff1 Qf6 Ng4 Qf8 Kg1 Qf6 Ref5 h2+ Kf2 Qf8 Rcb3 Qf6 Qe7 Qf8 Qe3 Qf6 Qa7 Qf8 Rhg1 h1Q Rff4 Qh7 Rh1 Qhf5 Kg1 Q5f6 Kh2 g1Q+ Kh3 Qe3 R4f2 Qeg5 Kh2 Nh5 Kg1 Ng3 Rh6 Ne4 Kh1 Ng3+ Kh2 Qh4+
3b4/1rP5/Kn6/BR1BBBb1/bRRp2r1/Qq4Rq/P1R4n/k2nn2B w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 g4 Bh6 f5 Bg7 Ne2 Bf8 Nd2 h6 Nf4 gxf4 Ne4 h5 g5 Nc6 Nf2 Nb8 Ng4 hxg4 Kd2 Kf7 Kd3 d5 c4 b5 h4 e5 a6 f3 h5 f2 c6 d4 a7 g3 c5 b4 Kc4 g2 Kb5 g1B c7 e4 h6 b3 c6 e3 h7 b2 Bh3 f1N Rh2 b1Q+ Qb3+ Be6 c8R e2 Bd2 e1N Ba5 Nh6 Rc2 Rg8 h8B Nd7 Ka6 Nh2 Qa3 Rb8 a8B Qb3 Rb1 Rb7 Rc4 N6g4 g6+ Ke8 c7 Nb6 g7 Kd7 f7 Be7 f8R Nf2 f6 Nd1 f7 Be3 Bf5 B3g5 Rb8 Qc8 Re8 Bd8 f8R Qa4 Rbb4 Kd6 Re7 Bd7 Re2 Kd5 Rec2 Qb3 Rf6 Ba4 Rg6 Bh6 Rg3 Bhg5 Bd3 Qh3 Bf5 Re8 g8B+ Re6 Bgh7 Re4 Be5 Rg4 Bc8 Nef3 Bg8+ Ke4 Bd5+ Kd3 Rc1 Kd2 Bf5 Ne1 Rb5+ Nc3 Rc2+ Kd1 Rb2 Kc1 Rc2+ Kb1 Bg2 Nd7 Bh1 Ka1 Rbb4 Rb5 Bad5 Nd1 Ra8 Rb8 Ra7 Nb6 Rb7 Na8 R7b6 Rb7 R6b5 Nb6
4k2N/Bb3N1K/NpR2RN1/2r1qr2/3N3p/1Pn1r2R/2r1R1RP/1bn4n w - - 0 1 legal: proof: d4 b5 a4 e5 dxe5 Qg5 axb5 Qd8 f4 Nc6 b6 Nb8 b7 Bc5 Qd4 Bf8 Qb6 cxb6 e4 g6 f5 Qf6 e6 Bd6 e5 Kd8 Bd3 Kc7 Be4 Qd8 f6 Be7 Bf5 gxf5 fxe7 Kc6 Kd2 d5 Kd3 a5 e8N h5 g4 f4 c4 f5 g5 d4 e7 Kd7 e6+ Kc6 c5 h4 g6 a4 g7 f3 Nh3 a3 Nd2 f2 Rf1 a2 Nb3 f4 Ke4 f3 Kf5 d3 Kg6 d2 Nf4 d1N Nd6 Ra5 e8N Nc3 e7 Kd7 Nd4 Qc7 Nf7 Nh6 g8R Ng4 Ned6 Nc6 e8R Nb4 Re2 Nd3 b3 Rh5 Nh8 Rf5 Ndf7 Qe5 b8N+ Ke7 c6 Bb7 c7 Rc5 Rfe1 f1R c8R Ngf2 Rc6 Nh1 Kh7 f2 Rg2 Ke8 Na6 Rg1 Rd1 Re1 Nfg6 f1B Bf4 Nc1 Rb1 a1R Rd3 Ra3 Rh3 Ra2 Bg3 Rc2 Rb2 Qe7 Bb8 Qe5 Ref2 Re3 Ba7 Bd3 Rff3 Rg5 Rff6 Rf5 Ra2 Rcf2 Re2 Bb1 Re1 Rd2 Ree2 Rc2
Rn5N/qnN1r1p1/r1p4N/6n1/bkP3P1/1p1rR1RR/1bR1N1QN/2K4b w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f6 bxa5 Kf7 e4 Ke7 e6 Ke8 e7 Kf7 g3 Ke6 e5 h5 Nh3 h4 Ng1 h3 Bg2 hxg2 Bd2 Kd5 e6 Kd6 Bf4+ Kc6 Be5 fxe5 Kd2 Kb5 e8R d5 a4+ Kc5 h4 b5 c4 c6 f4 d4 a6 d3 f5 b4 h5 b3 f6 e4 g4 e3+ Kc1 e2 a7 e1N e7 Nf3 h6 Bd7 f7 Qc8 a5 Kb4 h7 Nf6 a6 Qc7 Qe2 Qb7 Nd2 Ng5 Rh3 Bc8 Ra2 Nfe4 Rc2 Nc5 Nf1 Qb6 Qf3 Nb7 Ne2 g1R Qg2 Rg8 h8N d2+ Kb1 d1B Nh2 Rf1 Kb2 Rf3 Kc1 Rd3 Rg3 Nd7 Rh3 Rb8 a8N Qa7 Nc7 Ra8 Rg3 Nb8 Rh3 Qf2 a7 Qb6 Nd4 Bf3 Nf5 Bd5 Nh6 Qa5 Rd8 Qa4 e8R Bc5 f8R Bd4 Ree3 Qa2 Rf4 Re8 Nb5 Re7 Nc3 Qa4 Ne2 Bb2+ Kb1 Qa6 Rff3 Qa5 Rfg3 Qc5 Qf1 Bh1 Re8 Nd8 Qg2 Ba6 Rf8 Nb7 Rg8 Bb5 Rc8 Nd7 Rd8 Ba4 Re8 Rc8 a8N Qa7 Nc7 Ra8 Rg8 Nb8 Rd8 Qb6 Re8 Ra6 Rd8 Bd4 Kc1 Qa7 Re8 Nd7 Ra8 Nb8 Nb5 Ba1 Nc7 Bb2+
8/B4RQP/2rkr1BK/Q4r2/2b2Pqn/bR2p1n1/Bn1B2B1/2B1R1n1 w - - 0 1 legal: proof: f4 h5 b4 d5 e4 g5 a4 a5 bxa5 f5 c4 b5 axb5 g4 cxd5 Bd7 exf5 Bc8 Nf3 Bb7 Nc3 Bc8 Ne4 Na6 Nf2 gxf3 g4 Nb8 g5 Bd7 Ng4 hxg4 Qa4 Be6 Qd1 Bc8 Kf2 Kd7 Kg3 e5 h4 c5 d4 f2 d6 e4 d5 e3 h5 c4 Kh4 c3 b6 c2 h6 g3 Kh5 g2 g6 g1R b7 Qf6 h7 Be7 g7 Rg3 a6 Rf3 a7 Na6 b8B Nh6 g8B Qc3 f6 Nb4 f7 Qb2 f8R Rg3 Ra3 Rg6 Rb3 Qg7 Qg4+ Re6 Rf7 Nf5 Bg2 Nh4 Re1 f1N Be4 Bb7 Bg6 Nd3 Qg1 Ba6 Qg2 Qf6 Kh6 Qf5 Qg1 Nb2 Qg4 Kd8 d7 Bc4 Qg5 Qg4 Qe5 Nd1 Qg7 Bc5 Bd6 Rb8 a8B Rb6 Bb8 Ba3 Ba7 Kc7 d8B+ Kd6 Bb7 Rc6 Ba5 Ng3 Bad2 Nb2 Ba8 Re7 Bb7 Kd7 d6 Ke6 d7 Kd6 Rf5 Re6 Bf7 Rb8 Bg8 Rbc8 Rf7 Rc5 Bg2 Rf5 Rb6+ Rc6 d8Q+ Kc5 Qg5 Kd6 Rb3 Nd3 Bb2 c1N Qh5 Nce2 Bbc1 Ng1 Qg5 Rff6 Qa5 Nb2 Rb5 Bd3 Rc7 Re7 Ba2 Ree6 Rb3 Rf5 Rf7 Bc4
1QR1Qr2/bRB3q1/1BBnb2p/4b2B/P2BB3/K2Pp2n/7R/r1k1q3 w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 h4 f5 c4 g5 cxd5 f4 hxg5 b4 e3 b3 exf4 b2 Nh3 Bxh3 Nc3 Be6 f5 Bc8 Nb5 Bb7 Na7 Ba6 Nc8 Bxc8 g4 Kd7 f4 Kd6 f6 Kc5 g6 Kd4 g7 b1Q f5 e5 d3 Kc3 a6 c5 g5 e4 f7 h6 f6 c4 d6 e3 d7 Be7 f8Q Nc6 a7 Nb8 g6 Nc6 f7 Nb4 Qh5 Kc2 Bg2 c3 Bc6 Qb6 d8B Bc5 Bc7 Bd7 Rh2+ Kb3 Kd1 Ne7 g8R Nf5 g7 Rb8 Qg6 Qb2 Rb1 Qa5 Qc8 Be6 f8B Rb5 Qb8 Nd5 Qh5 Bd4 Bc5 Nf4 Rc8 Nh3 g8B Nd6 Bf7 Rf8 Be4 Rb4 a8B Ka2 Bac6 c2+ Ke2 Qa1 Bb2 c1B Kd1 Rb5 Kc2 Qe1 Bc3 Bb2 B3a5 Bbc3 Ba7 Rc5 Rb7 Rb5 Bfe8 Rb1 Qf7 Rd1 Qe7 Bc5 Bh5 Bg7 Qe8 Qd4 Bh1 Ra1 Bhe4 Qf6 Bc3 Qf7 Bd4 Be5 Bb5 Qg7 Bbc6 Qe2+ Kc3 Bb6 Kb4 Kb1 Bh7 Kc1 Bhe4 Rb1+ Ka3 Qe1 Re2 Ba5 Bac5 Bb6 Rh2 Ba7 B5b6 Ra1+
n1N4n/1Q1Pb2r/rQ4N1/2nr2KR/2k3N1/1N1b1R1N/2q1Q2P/N1rnb3 w - - 0 1 illegal: No possible last move
n3q3/Q1b2B2/2Qq2bq/rPr1B3/2Q1Q1K1/6P1/Q1q1np1k/1B1QNr1N w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 Ra4 h5 Rf4 gxf4 b4 h4 g3 h3 Nf3 Rh4 Rg1 Rh5 Rg2 hxg2 h4 Rh8 Kf2 Ke7 e4 g1R d4 a5 d6+ Ke6 d7 f5 h5 c5 h6 a4 b6 a3 b5 c4 h7 c3 b7 c2 Nbd2 a2 Ne1 a1Q Kf3 Nc6 b8Q Ra5 Bb2 c1Q Qa7 Qe8 d8Q Bd6 Qdc7 Qab1 Bd3 Nge7 Bc2 Qa2 Bb1 Nd5 Qcb7 Rg8 h8Q Nc7 Qh2 Rg5 Qhe2 Qd5 Qc4 Na8 Qdb3 Rh1 Qa2 Bc7 Qbb6 Qc2 Qbc5 Kf7 e6+ Kf6 e7 Qd6 d5+ Kg6 e5 Kh5 Ne4 Rf1+ Nf2 Nd4+ Kg2 f3+ Kh3 f4+ e6 Bb7 Qc6 Ne2 Nh1 f2 Bh8 f3 Be5 Qf7 e8Q Bc8 Qg8 Qe8 Qe4 Rf5 e7 Be6 Qb2 Bf7 Qa2 Qh6 d6 Bg6 d7 Rg5 Bc3 Rc5 d8Q Qf4 Qd1 Qd6 Qed3 Kg5 Be5 Kh5 Kh2 Kg4 Qgf7 Rg1 Qfb3 f1Q Qg8 f2 Qgc4+ Kg5 Qde4 Kh5 Nd3 Qe1 Kh3 Qed2 Ne1 Rf1 Kg2 Qh6 Kf3 Qg8 e8B Qgh8 Bf7 Qe8 Bf4 Qhf8 Ke3 Kg4 Be5+ Kh3 Kf3 Kh2 Kg4 Qh6
K2rk2N/NN3NP1/8/1rQN1p2/bqr4b/RqPb2r1/1n3R1n/NQ3R2 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 d4 c5 dxc5 Bg7 a4 Bf8 axb5 h6 Bf4 gxf4 g5 h5 Bh3 Nh6 Bf5 Ng8 Bg4 hxg4 Kd2 f5 Kd3 d5 Kd4 a5 b4 g3 h4 g2 e4 f3 c3 a4 g6 a3 h5 a2 b6 f2 e6 f1Q e5 Qe1 e7 Nh6 b7 Qd7 b5 Qc7 b6 Ra5 g7 Ra3 c6 Qd7 Kc5 d4 c7 d3 Nd2 Ra4 Nh3 g1R Nb3 d2 Nf4 Qe4 Qb1 d1B Nd5 Rg6 Rf1 Nc6 b8R Qh4 b7 Rg5 Kb6 Na5 Ka7 Kf7 e8N Ba3 Ka8 Ng4 h6 Bb4 h7 Qb5 Rf2 Be6 c8N Be7 Na7 Rc4 Rd8 Rg6 b8Q Nh2 Qd6 Rg3 Qc5 Be2 Rd6 Bd7 Ra6 Bd3 e6+ Kg6 Nd4 Qb3 Nc2 Bf6 e7 Kf7 Re6 Bb5 Re1 Ba4 Ref1 Rg8 Qc6 Qf4 Qc5 Bh4 h8N+ Ke6 Nc8 Kd7 Ned6 Rd8 Ndf7 Qd6 e8N Qdb6 Nec7 Q6b4 Nb5 Ke8 Na7 Rd4 Nc6 Nc4 Na5 Nb2 Nb7 Rc4 Qd1 Rd7 Na7 Rd6 Rc1 Rb6 Na1 Rb5 Qc2 Re3 Qb1 Rg3 Nc2 a1R Rcd1 Ra2 Rc1 Nd1 Na1 Re2 Rc2 Rd2 Ra2 Nb2 Ra3 Bc2 Nc8 Rdd4 Na7 Bd3 Ne3 Rd7 Nd5 Rd8+
3n1Nq1/P1Pnp3/3QN3/k1Nr1RR1/2r1bK2/N7/Q1qbnb2/2Nb1QN1 w - - 0 1 illegal: No possible last move
1N3N1Q/q2Kn3/nR3R2/2Qp4/bbR1n3/1R5R/2rPPnn1/2nNkr1R w - - 0 1 illegal: No possible last move
2k1bN1r/1n3RNp/3QnQ1R/1n3r2/1n2NrNP/4r2P/K2R1Nq1/2q2N2 w - - 0 1 legal: proof: c4 e5 a4 d5 cxd5 b5 axb5 Be7 g3 Bh4 gxh4 Qf6 Ra5 Qe7 Ra1 Qd8 e4 f6 d4 Nc6 d6 Nb8 d5 Nd7 Be3 Nb8 Bd4 exd4 e5 f5 Bd3 Bb7 Bc2 Bc8 Be4 fxe4 Kd2 Kd7 Kc2 g5 Kb3 c5 b6 a5 b7 a4+ Ka2 g4 b4 d3 b5 c4 b6 a3 Nd2 g3 Nf1 e3 Nh3 Qg5 e6+ Kd8 f4 e2 d7 e1R f5 c3 f6 d2 f7 g2 f8N g1N Nf2 c2 h3 Na6 b8N c1Q b7 Nc5 Na6 Re3 b8N Nb7 Nc5 Ra4 Nce4 Ne2 e7+ Kc7 d8R Nf4 Rb1 Nf6 Nc6 Bd7 Ne5 Ne6 Neg4 Be8 Rb6 Qg6 Rd7+ Kc8 d6 Nd5 Rh2 Rb4 Qf3 d1N Qf6 Qg7 Nc3 Rf4 Nce4 Ndc7 Ra6 Nb2 Rc6 Nd3 Ra6 Bg6 e8N Nb5 Rf7 Qg8 Ng7 Rf5 Kb3 a2 Rb6 a1R d7+ Kc7 Ra6 Ra4 Rg2 Rc4 Ka2 Kb8 Nc5 Rcf4 Nce4 Qc8 d8Q Nb4+ Ka1 Bh5 Qd1 Qc5 Qd6+ Kc8 Rb6 Nc6 Ka2 Qc1 Nd1 Bg6 Rd2 Bh5 Ndf2 Bg6 Re7 Be8 Rd7 Qf7 Re7 Qg6 Rf7 Qg5 Ngh2 Qg1 Nhg4 Qg2 Qa1 Re2 Qe7 Nec7 Qae5 Re3 Qd4 Ne5 Rh6 Nc6 Qef6 Ne6 Qd6 Nb4+
r3R3/1b3B1p/nqP1B2k/B1p1bn1B/4r1Q1/5B2/nB1PQ1Rb/1KqQ4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 Na6 axb5 Qf6 b4 Qe7 b6 Qd8 b5 Nb8 c4 d6 Nc3 Qd7 Na2 Qd8 Nb4 Kd7 Nh3 Ke8 Nf2 Ke7 Ne4 cxb4 c5 Kd7 c6+ Ke8 Nc5 dxc5 g4 f5 e4 Kf7 g6+ Kg7 e6 a5 e5 f4 g5 f3 e7 b3 e8Q b2 b7 b1N e6 a4 b6 a3 e7 a2 Be2 Nf6 Bb2 Na6 b8Q Bg4 b7 Bh5 Qc8 Rg8 b8B Qb6 Bc7 Qb3 Qg4 Qb6 Rg1 Nc3 Rg2 Nfd5 Rb1 Qb8 Ba5 Ne3 Ra1 Rh8 Rc1 a1B Rb1 Kg8 g7 Na2 Rc1 Qb3 Rc3 Nf5 Re3 Bf7 Re4 Bd5 Qeh5 Qb5 e8B Bd6 Bg6 Bc4 Re8+ Bf8 Qh2 Qb6 Bh5 Bb5 Qb3+ Bc4 Kd1 f2 Kc2 f1Q Bf3 Be6 Qba4 Bc8 Qe5 Qc4+ Kb1 Bb7 Qd1 Qc3 Qee2 Qc4 Re3 Bd6 Re6 Bh2 Re4 Qf7 Re5 Qg6 Re6 Kf7 g8B+ Kf8 Re5 Kg7 Bf7 Rhe8 Be6 Qf7 g6 Kh6 g7 Qf6 Re3 Qc3 Bef7 Re4 g8B Ra4 Re8 Rb4 Bb3 Re4 Bgf7 Qc4 Ba3 Bae5 Bb2 Qc3 Bbe6 Qc1+
r1B2K1k/1qP2Q2/pp1Qp2B/B2B1N1Q/B4bb1/1PN3n1/2r1n2B/1r4n1 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 c4 a4 c3 Ra3 Nf6 Rb3 Rg8 dxc3 Rh8 c4 Ng8 c5 Rh7 Qg4 Rh6 Qd1 Rh8 a5 Rh6 a6 Rc6 h3 Rh6 Rb6 axb6 a7 Rh8 h4 Nc6 Rh3 Nb8 Ra3 Rh6 Ra1 Rh8 Ra6 bxa6 Kd2 Kf7 Ke3 d5 Kd4 g5 Ke5 Kg7 f4 g4 c4 g3 h6+ Kh7 c6 e6 h5 g2 b3 d4 c5 d3 c7 d2 f6 Ne7 f5 Bg7 Ne2 g1N Ng3 Kg8 h7+ Kf7 h6 Ne2 Nc3 Bd7 c8B Nf4 Kd6 Bf8 c6 Nh5 Bb5 Ng7 Ba4 Rg8 h8Q Nh5 Qf1 Bg7 h7 Bh6 Ba3 Nd5 c7 d1R Bb4 Bg5 Ba5 Rb1 Qf2 Kf8 f7 Ndf4 Qe5 Bh6 h8B Nc6 Qb5 Qg5 Be5 Nh3 Bf4 Kg7 f8B+ Kh8 f6 Rg7 f7 Nd4 Qc5 Qd5+ Ke7 Qb7 Bd6 N5f4 Qh5 Bc6 Qh2 Bh1 Nf5 Rg2 Ke8 Ng1 Bg7+ Kh7 f8Q Rc2 Qff7 Bf3 Kf8 Bg4 Be5 Nd3 Qd2 Nc5 Bh2 Nde2 Qd3 Ne4 Qd6 N4g3 Qe8 Qh1 Qef7 Rb8 a8B Qg2 Bd5 Ra8 Bc4 Qb7 Bd5 Bf3 Qg4 Bf4 Bh6+ Kh8 Qgh5 Bg4
4Q3/1Q4pn/Kp3Q2/1r2N2Q/B2r2N1/2pPb2q/1Q1PnB2/QNr2krb w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 b4 e5 bxa5 d4 f5 d3 cxd3 Qd6 a3 Qd8 e4 f6 h4 Nd7 a4 Nh6 Rh2 Ng8 Rf2 Nb8 Rf4 Ne7 Ra3 Ng8 Rb3 Nh6 Rb5 exf4 e5 Ng8 e6 Bb4 Rd5 Bf8 Re5 fxe5 Ke2 Ke7 h6 Kd6 e7 Kd5 e8Q Kd4 h5 c5 h7 c4 h6 b6 f6 c3 f7 e4 a6 e3 a7 Be7 f8Q Bf6 a5 Na6 Nf3+ Kd5 Ne5 Nc7 a6 Bb7 Ng4 Qc8 Qc2 Bg5 Bh3 Nf6 Ba3 Nb5 Qb2 f3+ Kd1 Kd4 Kc2 e2 Kb3 e1R Ka4 f2 Bc5+ Kd5 Be3 f1R Bf2 Rc1 Qh5 Rb8 a8Q Nd4 a7 Ne2 Kb5 Rg1 Bg2+ Ke6 Bc6 Kf5 Be8 Bd5 Qb7 Kf4 a8Q Kf3 Ka6 Kg2 Ba4 Be3 Qff7 Re8 h8Q Nh7 Qf6 Re5 Q8e8 Kf1 Qa7 Bh1 Qa8 Ng5 h7 Rb5 h8N Nh7 Nf7 Qf5 Nfe5 Rd8 Qac8 Rd7 Qc4 Rd6 Qca2 Rd4 Qba1 Qf3 Q2b2 Qh3
8/1K1NBn1q/1p6/2nrn2k/nP3B2/3Q1ppp/1N1QBP1b/3rBNBB w - - 1 2 legal: proof: e4 d5 exd5 a5 h4 g5 b4 Bg4 bxa5 Bf3 h5 Be2 Nf3 Bc4 Ng1 Bb3 cxb3 Qd7 Qc2 Qd6 Qd1 Qd8 a4 h6 g4 Na6 b4 Nb8 Rh4 Qd7 Ra3 Qd6 Rg3 gxh4 g5 Qd7 g6 Qd8 Rg5 hxg5 Ke2 c5 Ke3 f5 d4 e5 g7 Kf7 h6 Kg6 a6 h3 a5 f4+ Ke4 b6 h7 g4 d6 c4 Kd5 e4 d7 c3 a7 e3 a6 c2 Qd3+ Kg5 Ne2 Kh5 Na3 Bc5 Ng3+ Kg5 Nc4 e2 Nb2 e1N Be2 Be7 Nf1 Nh6 g8N Bf8 Nf6 Rg8 h8B Qe7 d8B Nf3 Nd7 Nh2 Bc7 Nf3 Bd2 c1N Be1 Na2 Bhe5 Nf7 Bed6 Nc6 Qd2 Rb8 a8Q Rd8 a7 Na5 Qb7 Kh5 a8B Nb3 Kc6 Rh8 d5 Nc5 Qa6 Nc3 Qad3 N3a4 Be5 Bg7 d6 Bf6 Bb8 Bh4 Bb7 Bg3 Kc7 Bh2 Bd5 N3g5 Bh1 f3 Bf4 Rh6 Kc6 Rf6 Bc7 Rf5 Bb8 Rd5 Kc7 Na6+ Kb7 Ne5 Bc7 Qh7 Bb8 Bg3 Bc7 Ngf7 Bb8 Bh4 Bh2 Bg5 Bg1 Bf4 Nc5 Rc8 d7 Ng6 d8B Bh2 Bd1 g3 Bf4 Nge5 Nd7 Rc1 Be2 Rd1 Be7 N6c5+
1K1Rr3/1QN1p2n/p2P1r1R/3r4/1p1p4/5QP1/NNnb1QQQ/k1N1b3 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Bc8 c4 d6 b3 b4 c5 Qd7 Qh5+ Kd8 Qd1 Qb5 axb5 Ke8 Rh6 d5 Rh1 d4 Bb2 Be6 Bc3 Bc4 bxc4 dxc3 d4 c6 d5 Na6 d6 Nc7 Be2 Na6 Bf3 Nb8 Bd5 cxd5 Ke2 Kd7 Ke3 h5 Kd4 h4 f4 h3 f6 Ke6 g6 h2 b6 c2 g7 c1B b7 Nh6 g8Q+ Kf5 f7 Na6 b8Q Ng4 c6 Nf2 c5 Nh3 c7 Ng5 c8N Rh4 c6 Bb2+ Nc3 Nh7 c7 Rh3 Ne2 Ke6 f5+ Kf6 Nc1 Nc5 Qf3 Ne4 Nb6 Ba3 c8Q Rg3 N3a2 Rg5 Qbb7 Nc5 Na4 Bh6 f8N Nd3 Nb2 Ne1 Kc5 Ke5 Kc6 Kd4 Kc7 Nc2 f6 a6 f7 Re5 Qch3 Re8 g3 Rh5 Qhg2 Bd2 Qh8+ Re5 Rf1 h1R Rb1 Rh4 Rh1 Re4 Rh6 Rf4 Ra1 Rf6 Rb1 Ref5 Ne6+ Ke5 f8Q Be1 Nd8 Kd4 Kb8 Kc5 Qff2+ d4 Qf7 Rd5 Qh5 Rf4 Qhh2 Rff8 Qhf6 Rf7 Q6f3 Rf6 Qc7+ Kb5 Qc8 Ka5 Ne6 Kb5 Nc7+ Ka5 Nd1 Ka4 Rb3 Bb2 Rc3 Ba1 Rc6 Bac3 Nb2+ Ka3 Rb6 Bd2 Rb7 Be1 Ra7 Bd2 Ra8 Be1 Ka7 Bd2 Qb7 Be1 Rd8 Bd2 Nbd3 Be1 Kb8 Bcd2 Nc5+ Kb2 Na4+ Kb1 Nb2 Ka1
2kn2K1/1r1N1bN1/1r6/NB3qBQ/1N2PnP1/2n1Qn1Q/1r2bb1p/1N1Q4 w - - 0 1 legal: proof: b4 h5 f4 d5 c4 e5 fxe5 g5 cxd5 g4 a4 b5 axb5 h4 h3 g3 Rh2 Qg5 Ra3 gxh2 g4 Qf6 Rg3 hxg3 h4 Qd8 e4 Kd7 Ke2 f5 Kd3 c5 Kc4 a5 d4 a4 b6 g2 d6 f4 Kd5 c4 h5 c3 b5 c2 h6 f3 b7 f2 h7 a3 e6+ Ke8 b6 a2 e7 Kd7 e8N a1R Nh3 g1N Ng7 Nc6 b8Q R1a2 b7 R8a5+ Bb5 f1B Bg5 c1N Nf4 Rg2 Nd3 Qf6 Qa7 Kd8 b8N Be2 d7 Bc5 Nb4 Na2 Qf1 Rf2 Qh3 Ra6 Qh5 Nf3 Qb6+ Ke7 d8N Rg2 Nb7 Nd8 Qa7 Rb6 Na5+ Rb7 Qh3 Bd7 Qh5 Be8 Nd7 Bg6 Qb8 Rf2 Qf4 Bb6 Qe3 Bf7+ Ne6 Ke8 Kd6 Ba7 d5 Ne7 Qh3 Rf8 h8Q Nc3 Q8h7 Qf5 Q7h5 Ndc6 Ng7+ Kd8 Nc4 Kc8 Na5 Ne1 Nd2 Nd8 Nb1 Qf3 Ke5 Ng6+ Kd6 Nf4 Ke7 Rh8 d6 Rh6 Kf8 Rg2 Ba4 Qf2 Bc6 Nf3 Bb5 Be8 Kg8 Qf1 Qd2 Bf2 Qe3 Bf7+ Kf8 Be1 Nc5 Nd2 Nd5 Nc6 Nd3 Bf3 N3b4 Nd3 Be7 Bd1 Bf6 Qf5 Bg5 Nf3 Nf6 Nf4 d7+ Kc7 Ba6 Rb2 Be2 Bf2 Bb5 Be8 Kg8 Be2 Nfd5+ Kb8 Nb6 Rf6 Kh8 Bf7 d8Q+ Ka7 Qdd3 Kb8 Nd7+ Kc8 Qd1 Rg6 Kh7 Nd8 Kh8 Be8 Kh7 Rgb6+ Kg8 Bf7+
5K2/Bb2Q3/1b2r1P1/2r1Q2B/1RQ4p/1Pr2qRB/2k1rQB1/Qn1bnn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 d5 fxe5 d4 h5 d3 cxd3 Bc5 d4 Bb4 d5 Bf8 g4 h6 Nf3 Ne7 Nh4 Ng8 Nc3 Ke7 Ne4 gxh4 g5 Kd7 g6 Ke8 Ng5 hxg5 Kf2 Kd7 Ke3 a5 Kd4 c5+ Kc4 f5 e4 a4 d4 a3 b6 f4 h6 a2 e6+ Kd6 b3 g4 h7 f3 b7 g3 e7 g2 e8B g1R Bd7 f2 Qe1 Ra6 Bdh3 Qf6 Bfg2 Nc6 Be3 f1B+ Qe2 Na7 b8Q+ Ke7 e5 Bb7 e6 Nb5 Qc8 Kd6 e7 Nh6 e8B Nc3 Bed7 Qf3 Bdg4 Nb1 Bh5 Ng4 Rh2 Rg8 h8Q Rh1 Kb5 c4 Qf2 c3+ Qc4 c2 Qg7 c1R Qe5+ Kd7 d6 Rc3 Kc5 Be2 d5 Re1 Rh1 Bd1 Rg1 Re2 Bd4 Be7 Be3 Bd8 Bd4 Ba5 Be3 Kd8 d7 Bb6+ Kd6 Nh2 Bd4 Nf1 Ke6 Qg4+ Kf7 Re8 Be3 Re6 Kf8 Ra5 Bd4 Rc5 Be3 Rd6 Bd4 Kc7 Be3 Kb8 d8Q+ Ka7 Qde7 Re6 d6 Qg3 d7 Qf3+ Qcf4 Ka6 d8Q Ka5 Qdd4 Kb5 Qff6 Ka5 Qdd5 Kb4 Qc4+ Ka3 Bd4 Nbd2 Rc1 a1N Be3 Nc2 Ra1+ Kb2 Ra4 Ne1 Rb4 Rd5 Bd4 Nb1 Be3 Ba5 Ba7 Kc2 Bh1 Qg4 Rg3 Bb6 B1g2 Rc5 Qfg7 Kd2 Qh8 Qf3+ Qhf6 Rd3 Qa1 Rc3 Qff4+ Kc2 Qff6 Qg4 Qe5 Qf3+
bkBB4/3qb2n/1qQq1bNP/2NP3Q/3n1B1b/1r2r2B/N2pN1K1/N7 w - - 0 1 legal: proof: b4 c5 d4 h5 a4 f5 e4 b5 axb5 h4 exf5 h3 d5 Nc6 Ra4 Nd4 gxh3 Nc6 h4 Nb8 h5 Qa5 Bh6 Qc7 Bc1 Qd8 h4 d6 c4 Bb7 Ra3 Qc8 Rd3 Qd8 Rd4 Bc8 Rh3 Bd7 Rc3 cxd4 c5 Be6 c6 Bc8 Rc5 dxc5 f4 g5 Kf2 a5 b6 e5 c7 Kd7 b5 c4 h6 d3 h5 c3 f6 g4 f5 e4 h7 g3+ Kg2 e3 h6 c2 b7 e2 f7 e1B f6 a4 b6 a3 Nc3 a2 Bf4 a1B Qh5 c1Q Na2 d2 Ne2 Nc6 b8B Nd4 b7 Be7 f8Q Qa3 f7 Qd6 Ba7 Bb2 Bb6 Rb8 Qg7 Ba1 Qgg6 Nf6 Ba5 Rg8 h8N Nh7 Qf6 Rg5 Ng6 Re5 Bb6 Re3 f8N+ Ke8 Ne6 Q8d7 Nc5 Bc3 Kg1 g2 Nb3 Bh4 Kh2 Re4 Qe6 g1Q+ Kh3 Re5 Na1 Bb2 Bg2 Qb1 Kh2 Re3 Bh3 Bc3 Ba5 Qbb6 Kg1 Nf5 Kg2 Bcf6 Kh2 Nd4 Kg2 Ra8 b8N Bb7 c8B Kd8 Na6 Rb8 Nc5 Kc7 Qe4 Bc6 Qc2 Ba8 Qc4 Rb7 Qb5 Kb8 Qc6 Qa6 Bd8 Rbb3 Qf3 Qb5 Qh5 Qb6
Nr4Q1/Brb1n1p1/1BQ2q2/K2B1b2/4NB1k/2n1N1qP/1P3n2/1N2nq1B w - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 h5 axb5 h4 d6 h3 gxh3 Bf5 h4 Bh3 h5 Bc8 e4 f6 d5 Qd7 h3 Qe7 Ra4 Qd8 Rd4 exd4 e5 f5 Rh2 Nc6 Rg2 Nb8 Rg4 Ne7 Rf4 Ng8 Re4 fxe4 Kd2 Kf7 f4 a5 f5 c5 f6 d3 Kc3 e3 e6+ Ke8 b6 e2 b7 e1N h6 d2 h7 a4 e7 Kf7 d7 Kg6 e8B+ Kg5 d6 a3 f7 c4 Kb4 c3 Qc2 a2 Nf3+ Kh5 Ng5 a1Q Ne4 d1N Bf4 Qc7 d8N Qc6 Bg2 Qc7 Bc6 Bf5 Bh1 Qa6 Bd5 Ra7 Ne6 Qac6 Nd4 Ne7 d7 Kh4 d8B Nd7 b8B Nb6 Qc1 Rg8 Nc2 Rb7 Ka5 Nf2 Ba7 Qf6 Ne3 Qb8 Bdc7 Na4 Bcb6 c2 h8Q+ Qh6 Nc5 Nc3 Ne4 Qe5 Qh7 Rh8 Qg8 Qhf6 Qd2 c1Q Qc2 Qd1 Qa4 Qe2 Qc6 Qf1 Qc4 Ng6 Qc6 Bd6 f8N Ne7 Ne6 Bb8 Nc7 Qed6 Bh6 Qg3 Na8 Be5 Bf4 Bc7 Qf7 Rc8 Qg8 Rcb8
R2b1r2/4Q3/Q2RRq2/2R1r1k1/1n2qRp1/P1KQ1Q1B/qr4P1/B1br3b w - - 0 1 illegal: No proof kernel
3qb2N/2P2Np1/2r1nbP1/B2p1n1N/BQ2NB2/K3nBb1/Q3pNn1/6k1 w - - 0 1 legal: proof: g4 h5 a4 b5 axb5 d5 e4 a5 h4 f5 d4 c5 dxc5 Bb7 b4 Ra6 e5 Qb6 g5 Qc7 Rh3 Rd6 exd6 Qd7 Rg3 Qd8 Rg4 hxg4 Ra3 Ba6 Re3 Bc8 Re4 fxe4 Kd2 Kd7 Kc3 Ke6 Kb3 Kf5 f4 e5 c4 g3 b6 a4+ Ka3 g2 g6 e3 h5 Ke4 b7 e2 h6 e1N d7 Rh7 f5 Ne7 f6 Qb6 d8N Nd3 b5 Bd7 c6 Nc5 f7 Nf5 c7 Nd4 c8B Qd6 b6 Ne2 Qb3 Nf4 Be2 Be8 Bd7 Nce6+ c5 Rh8 h7 Be7 f8Q Bf6 Nf7 Nc6 b8N Ne7 b7 Nf5 Nh3 g1B Qa2 Bh2 Bd2 Ng2 Ba5 Ke3 Nf2 e4 Nd2 Bg3 Bf3 Qe7 Bc6 Qd8 Nd7 Rg8 b8B Rh8 Kb4 a3 Ba4 Rg8 c6 Rh8 Qb2 a2 Ka3 a1N Qa2 Rg8 h8N Nc2+ Kb3 Kd4 Qd6 e3 Nde4 e2 Qb4+ Ke3 Be5 Rf8 c7 Ngf4 Bh1 Ng2 Bd6 Kf3 Bf4 Nce3 Ka3 Bc3 Ndf6 Ba1 Nh5 Bf6 Nfd6 Rf7 Kb3 Rd7 Ndf7 Rd6 Ka3 Rc6 Nd3 Kg4 Ndf2+ Kh4 Ng4 Kh3 Ngf2+ Kh2 Qa1 Ngh4 Qa2 Kg1 Bf3 Nhg2
4K1k1/3Q1pn1/2b1N3/R2pQ1R1/Q2PpP1q/qbN1pNQN/1rr2Nr1/8 w - - 0 2 illegal: No possible last move, all moves rejected
7B/pN2p1NN/1k2B3/n1r3pP/2Q5/2Qb3Q/rNQ1BP1r/1n1b3K w - - 0 1 legal: proof: c4 b5 e4 c5 a4 f5 exf5 d5 axb5 Na6 cxd5 Qa5 b4 Kf7 b6 Bd7 b7 Rc8 b8Q Qb5 Qa8 Qe2+ Qxe2 Rc7 Qd1 Rc6 h4 g5 h5 c4 Ra3 Bg7 Ke2 Bd4 Ke1 Bc5 bxc5 Kf6 Qb7 Kg7 Qa8 Kf7 g4 h6 Rh4 Kg7 Rg3 gxh4 g5 Kf7 g6+ Kf6 Rg5 hxg5 d4 c3 g7 c2 d6 h3 d5 Ke5 f6 h2 f7 h1B f8N Bf5 d7 Bhe4 d8N Bg6 d6 Bd3 d7 Kd5 Be2 Nc7 Kf1 Rh6 Kg2 Kd4 Nh7 Bf5 Nd2 Rhf6 Ngf3+ Kd5 Qc8 Bg4 Nd4 Bg6 Bb2 c1R Qc2 Nb5 Nf5 Nc3 Nc4 Nb1 Nb7 Nh6 g8B+ Nf7 Ng7 Bd3 d8Q+ Rfd6 Qdc7 Rg1+ Kh2 Rg2+ Kh1 Re6 Qh2 Nd8 Qh3 Rc7 Bf6 Nc6 Nb2 Na5 c6 Bf3 Bf7 Bg4 Qg8 Rc8 c7 Bf3 Nc4 Kc6 Nb2+ Kb6 Qc3 Re5 Be6 Rc5 Bd4 Rd8 c8Q Bg4 Be5 Rd4 Qf7 Ra4 Qf4 Bf3 Qfc4 Ra2 Qc2 Bg4 Q4c3 Rb5 Q8c4 Rc5 Ne8 Bf3 Bh8 Bg4 Ng7 Bf3 Bf1 Bd1 Be2 Rh2+
n2Nnr1N/b1n3PQ/N1R1Q1PK/2R1q3/5r1R/1Q3n1b/1N1R3q/1nr2k2 w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 e4 f6 d4 Qd7 d5 Qe7 Bd3 Qd8 Be3 f5 Bd4 exd4 e5 Qd7 Bc2 Qd8 Be4 fxe4 Kd2 Kd7 g4 a5 f4 h5 b4 c5 f5 c4 f6 h4 b6 a4 b7 d3 Ke3 d2 Kf4 e3 f7 a3 g6 c3 g5 c2 g7 c1R g6 e2 b5 e1N b6 h3 Qh5 d1N Nc3 h2 Na4 a2 Nf3 Nb2 Qh7 Na6 b8Q Qe7 b7 Nf6 Kg5 Nc4 Kh6 Nc7 Nb2 Nb6 Ng5 Ra4 Rb1 a1N e6+ Kd8 d7 Nac2 Ra1 Rf4 Ra5 Nba8 Rc5 Na3 Rc6 Qe8 Rc5 Ke7 d8N Kd6 e7 Ke5 d6+ Kd4 d7 Nf3 Rc6 Rc5 Rc1 Ke3 Rc4 Rff5 Rh4 Rc1 Rc5 Ke2 Rc6 Ncd5 Qg3 h1Q b8N Nb1 Na6 Qh3 Qb8 Qg2 Qb3 Rf4 Nde6 Qg4 d8R Ndc7 Rd2+ Kf1 Nd8 Qgd7 Re2 Qd4 Rd2 Qed7 e8R Bc5 f8Q Qh3 Qfg8 Qh2 Ngf7 Ba7 Re5 Bh3 Rec5 Qe5 Qe8 Rf8 Qee6 Nfe8 Nh8 Qf5 Re2 Qe4 Rd2 Qe5
Q3n1b1/4bQ2/Bb1bn1B1/Qr2K3/2Q1R2B/b2BP1Pk/2bRRr1q/5n2 w - - 0 1 illegal: No proof kernel
2k1n1R1/6r1/2n3Pb/q1b1Q3/1QK1b1NN/QNRrPb2/b1Rb3R/3N1q2 w - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 h5 a4 b5 axb5 g6 f4 Nd7 b3 Nb8 Bh3 Bc5 Ba3 Be7 Bc5 Bf8 Be3 g5 fxe5 Nh6 Bf4 gxf4 g5 Ng8 Bg4 hxg4 h4 Kd7 d4 a5 Kd2 f5 Kd3 c5 e6+ Kc7 e7 a4 e8N+ Kd7 d6 a3 d5 f3 e3 f2 b4 f1B+ Ne2 f4 h5 g3 b6 g2 h6 g1B b7 a2 b5 f3 h7 f2 b6 Ra3+ Qb3 Ra8 Nd2 Nf6 Kc4 Bh6 Qa3 Bg2 Nb3 f1B Rc1 a1Q Rc3 Bf3 Rh2 Rg8 h8N B1g2 Ng6 Be4 Nh4 Bgf3 g6 Nc6 b8Q Qf1 b7 Qa5 Rc2 Kd8 d7 Rg7 Qe5 Bf2 b8Q Be1 Qbb4 Bd2 Nd6 Kc7 d8R Be6 Rg8 Rd8 Nf7+ Kc8 Rc3 Ne8 Rc2 B6f5 d6 Rd7 Rc3 Bb1 Rc2 B5e4 Rc3 Ba2 Rc2 Bf4 Nh6 Bg5 Ng4 Bh6 Rc3 Qa8 Kb5 c4 Rc2 Rd8 Nc3 Rdd7 Nd1 c3+ Re2 Qa5+ Kc4 Qg1 Rb2 c2 Rh2 c1B Rc2 Bb2 Rc3 Ba1 Rc2 Bd4 Rc3 Bc5 Rc2 Rde7 d7+ Kd8 Rc3 Re6 Rc2 Rd6 Rc3 Kc7 d8R Qe1 Rd7+ Kc8 Rf7 Rd3 Rff8 Be2 Rff2 B2f3 Rfg2 Qf1 Re2 Be1 Rec2 Bd2
b1q2Q2/5Kn1/B3Q3/PrB2PrQ/3r1q1p/4rq1N/B2B2Nb/1N1Nn2k w - - 0 1 legal: proof: g4 a5 a4 d5 c4 g5 cxd5 f5 e4 h6 exf5 Rh7 b4 Rf7 bxa5 Rh7 h4 Rh8 h5 Qd6 Rh4 Qd8 Ra3 Bd7 Rg3 gxh4 g5 Be6 g6 Bc8 Rg5 hxg5 Ke2 Kd7 Kd3 Kd6 Kd4 c5+ Kc4 Ke5 f4+ Ke4 d4 e5 d6 b5+ Kc3 c4 g7 g4 f6 g3 f7 g2 f5 Nf6 g8B Bb7 d5 Ne8 a6 Nc6 a7 Qc8 h6 Ng7 h7 Rb8 a8N Nb4 d7 Nc2 d8Q Bd6 f8Q Ne1 Nh3 g1R a5 Rg5 Nb6 Ba8 Qd7 Bc7 Kb4 c3 Kc5 b4 d6 b3 Na4 c2 Ba6 b2 Bd2 c1Q+ Bgc4 Rb3 Qe6 Re3 Qh5 Qd1 d7 Qf3 d8N Qf4 Qhh6 Kf3 Qh5+ Kg2 Nac3 e4 Ba2 Kh1 Nd1 Qf3 Kc4 Bh2+ Kd4 Rg8 h8B Rg4 Nf7 Rf4 Ke5 Rg4+ Kf6 Rf4 Na3 b1R Nd6 Rb5 Nb1 Rg4 Kf7 Rg5 Qfe7 Rd8 Nc4 Rd4 Qf8 Rc3 Ndb2 e3 Nd1 e2 Nce3 Rcb3 Ng2 Re3 Qc6 Nc2 Qcd6 e1Q Qdg6 Qef1 Qe6 Ne8 Be5 Ng7 Bd6 Ne1 Ba3 Qf4 Bc5 Q1f3
1q6/1r2N2k/r3p1nP/BKQP1Q2/N5Q1/2BBnbnN/1n1Q2q1/2bbB3 w - - 0 1 illegal: No possible last move, all moves rejected
Q1N2q2/KNBr1BnQ/4PB1b/3p3B/q1b2q2/2q2Nq1/r2Pb1k1/2NQ4 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 e4 b4 e3 b6 Nc6 b5 Qg5 b7 Qf6 b6 Nd4 fxe3 Be7 e4 Bf8 e5 Qd8 h4 g5 g4 Nb5 cxb5 Bb4 Ra6 Bf8 Ra4 h6 Rf4 gxf4 g5 h5 Rh2 Bh6 Rg2 Bf8 Rg4 hxg4 Kf2 Ke7 b8N Ke6 e4 c5 b7 d5 b6 a5 h5 f5 h6 f3 Ke3 c4 Kd4 c3 g6 f2 g7 f4 h7 a4 Bg2 f1B Bf3 g3 Bh5 f3 Nd7 f2 b8B g2 b7 a3 Bb2 c2 Nf3 c1Q Nb6 g1Q Bc7 a2 b8Q a1Q Nc3 Bca6 Ne2 Nh6 Nc8 Qg3 Qb7 Qc6 Nc1 Bfe2 Bc3 Ra7 Qa8 f1Q Bb2 Rg8 h8Q Qcd7 Qh7 Nf5+ Kc3 Qaa4 Ba1 Rh8 g8B+ Qf7 Bb2 Bh6 Ba1 Qdh4 Bb2 Qc2+ Kb4 Ng7 Ka5 Qc3+ Kb6 Qhf4 Ba1 Qfh3 Bb2 Qhh4 Ba1 Bb7 Bb2 Ra2 Ba1 Bba6 Ka7 Kd7 Bb2 Qf8 Bgf7 Qhg4 Nb6+ Ke7 e6 Kf6 e7 Qd7 Nc8 Qa4 Ne1 Kg5 e8N Kh4 e5 Kh3 e6 Rg8 Nf3 Kg2 Ned6 Rh8 Qb1 Rh7 Nb7 Qcb4 Bf6 Qc3 Bfg6 Nf5 Qe4 Rd7 Bf7 Ng7 Qh7 Bac4+
3k4/N2bRR2/q2R1NQ1/1pQ1b1nP/4KQ2/n1bR2p1/4Pbrr/1Q1N3r w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 h5 g4 Ra6 gxh5 Ra8 d4 f5 d6 Nh6 d5 Rg8 Be3 Rh8 Bh3 Ng8 Bd4 exd4 Bg4 fxg4 Kd2 g5 Kd3 b5 a4 c5 h4 g3 f4 g2 h6 c4+ Ke4 g4 d7+ Ke7 d6+ Kf7 h5 d3 h7 g3 f5 d2 a6 c3 a7 c2 f6 c1B a5 Bb2 a6 Be7 Ra3 Bd4 Nf3 g1B Ne5+ Ke6 f7 Qe8 d8N+ Kf6 f8Q+ Qf7 d7 Bb4 Nc3 Nc6 Qc5 Qa2 Qb1 Bgf2 Nd1 Na5 Rd3 Nh6 Ndc6 Rf8 d8R Nf7 h8R Bbc3 Rf1 Bd7 Rh7 Nc4 Ng4+ Ke6 Rg7 Be5 Nf6 Na3 Rh7 Rc8 a8Q Rb8 a7 Rb6 Nb2 d1R Qb8 Ra6 a8Q Ra4+ Rd4 Re1 Nd1 Rb4 Na7 Ng5+ Kd3 Rf7 Rd6+ Ke7 Qac6 Rh4 Qe4 Rh2 Qg6 Bfd4 Rf3 Bf2 Rf8 Reh1 Qbc7 Ne6 Ke4 Rg2 Rfd3 Qa1 Qa5 Rhh2 Qab4 Qa2 Ne8 Kd8 Rg7 Rf3 Rff7 Qa1 Nf6 Ng5+ Kd5 Rf4 Qbd4 Rfh4 Qf4 Rh1 Re7 R4h2 Rgf7 Nf3 Ke4 Qa2 R6d4 Qe6 Rd5 Qa6 Rd6 Ng5+
k2n1QK1/N2p3B/1br3N1/7P/QN1n2P1/r1B4n/bn3p1B/qQNqQ3 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 f4 c5 fxe5 Bg7 dxc5 Bf8 Ra4 h5 Rf4 gxf4 b4 h4 g4 Qf6 h3 Qg5 Rh2 Qf5 Rg2 Qf6 Rg3 hxg3 h4 Qd8 Kd2 a5 Kc3 f5 Kd4 g2 e4 a4 c4 a3 b6 a2 c6 a1Q+ Nc3 f3 e6 f2 Ke5 f4 c7 f3 e7 Na6 b7 Nb8 c5 Qa2 c6 Ra6 h5 Qa4 b5 Qa1 b6 Qa5+ Nd5 Nf6 Ne2 g1N Qa4 Rh6 Bb2 Nh7 Bc3 Nh3 Nc1 N7g5 Bd3 f1N Kf5 f2 e5 Qb5 Nb4 Ne6 Bb1 Qe2 Bd3 Rh7 Kf6 Nd4 Bc2 Rh8 Bh7 Qd1 Kg6 Ra8 Kf6 Nd2 Kg6 Na6 b8Q Bb7 c8N Nc5 c7 Bd5 b7 Ba2 Na7 Nc4 c8N Nb2 Kf6 Bh6 Kg6 Bf4 Kf6 Rf8+ Kg7 Rf6 Kh8 Nce6 Kg8 Ng1 Nb6 Bg5 N6d5 Be3 Nf4 Nh3 Ng6 Qc8 Qd6 Qc4 b8B Qcf1 Qb6 Qg1 Qbb5 Qge1 Qd3 Qf1 Qb1 Nd8+ Kg7 Rc6 Kh8 Kf7 e6+ Kf6 e8Q Qh1 e7 Ke6 Nbd3 Kd5 Nb4+ Kc5 Be5 Kb6 Bh2 Kb7 Qf8 Qhf1 e8Q Qfe1 Nc8 Ra5 Na7 Ka8 Qb3 Ra3 Qa4 Nb3 Kg8 Bb6 Qd3 Qf1 Qe1 Qh1 Ne2 Qa1 Qdb1 Qf3 Nc1 Qd1 Qc2 Nd4+ Qcb3 Nc4 Qb1 Nb2+
b1Bn1Qr1/kr2nKRQ/2q3P1/rQ3R2/1B1bR2B/2P2R1p/1p1p1B2/6b1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 d4 Na6 dxc5 Nb8 h3 Bg7 h4 Bf8 g4 h6 Nf3 Ra6 h5 Ra7 Nh4 Ra8 Nc3 Nf6 Ne4 gxh4 g5 Ng8 g6 Rh7 Ng5 hxg5 Qd2 Rh6 Qd1 Rh8 Kd2 d5 Kd3 Kd7 Kd4 Kc7 Ke5 b5 a4 Kb7 f4 b4 f6 h3 c3 b3 a6+ Ka7 a5 g4 f7 d4 h6 g3 h7 e6 f5 g2 c6 g1R c7 d3 f6 b2 Ra4 Ne7 Qe2 Rg2 Bg5 d2 Qb5 Qe8 Re4 Qd8 Bh4 Bb7 c8R Qd3 Rc7 Bh6 f8Q Rf2 f7 Re2 Kf6 Rg8 h8B e5 Rg1 Nec6 Rg3 Be3 Rf3 Bd4 Qh6 Qe3 f8B Nd7+ Kf7 Ne7 Qh7 Nc5 B8f6 Qf4 Bf2 Ne6 Rc5 Qh2 B6h4 Qg2 Rc7 Re3 Be2 Rb8 Rf5 Qh1 Bg4 Re1 Rf3 Ra1 Rc5 Ba8 Rd5 Ng7 Bc8 Rb7 Rd7 Ne6 Rf5 Nd5 Bd6 Ne7 Bb4 Bc5 Rd3 Bd4 Rdf3 Ra3 Ref4 e4 Rg4 e3 Re4 Kb8 a7+ Kc7 a6 e2 Qe8 Ra5 Qa4 e1B Qb3 Rbb5 Qd5 Kb6 Qd7 Bc6 a8R Qg2 Ra7 Ba8 Rc7 Qh1 a7 Qg2 Bfg3 Bef2 Qe8 Bg1 Bf2 Qf1 Rd7 Qc4 Rb7+ Ka6 Qf8 Qc6 Rc7+ Bb7 a8Q+ Kb6 Qb8 Ka6 Bd7 Ba8 Qbe8 Rb7 Bc8 Qa4 Qb5+ Ka7 Ke8 Nc6 Rg7 Ne7 Ba3 Qc4 Bb4 Qc6+ Kf7 Nd8+
b1B3n1/1Q2NpQ1/n1pP1P2/r5p1/5kNN/7Q/1Qq1qNbK/1b1rBB2 w - - 0 1 legal: proof: f4 d5 a4 g5 d4 b5 axb5 e5 c3 Bc5 dxe5 d4 Qd2 d3 Qd1 Bd4 cxd4 Qd5 Nf3 Qd7 Ng1 Qd8 b4 Bb7 f5 Ne7 Ra6 Bc8 Rh6 Ng8 Rh4 h6 Rf4 gxf4 h4 Ke7 g4 Qd5 g5 Kd8 g6 Ke8 Rh2 Qd7 Rg2 Qd8 Rg5 hxg5 Kf2 Ke7 Kg2 a5 e4 c6 g7 d2 h5 f3+ Kh2 f2 b6 a4 b7 a3 e6 Kd6 h6 a2 d5 Ke5 d6 a1Q b5 Qc7 b6 Kf4 e5 Ne7 g8N Nd5 e7 Nd7 e8B Qa2 b8Q Qa6 h7 Qb5 b7 Qb4 e6 Qb3 e7 Qbb6 Qh5 Qb2 Nc3 Qa2 Nd1 Qaa5 Qh3 Nc5 Bd7 Qc3 e8N Na6 Nf3 Qc2 Nef6 Ne7 Nh4 Qa5 Ba3 Qe5 Bb4 Qe2 Ng4 Ra7 f6 Ra8 Bg2 f1B Ndf2 d1B Be1 Ra7 Qc7 Ra8 b8Q Bb7 Bc8 Ra7 Bd5 Ba8 Bc4 Bg2 Bd3 Qe6 Qcb7 Qee2 N8h6 Re8 h8Q Ng8 N6f5 Re4 Qg7 Rd4 Ne7 Rd5 Qb6 Ra5 Bc4 Rb7 Q6a7 Rb1 Qab7 Qg6 Ne3 Qf3 Qbd7 Bc2 Qb2 Rd1 Neg4 Bb1 Qdb7 Qc2 Bf1 Qfe2
Q7/1Q2p3/RKQ5/n5QP/1BRr4/BBbBP1pq/b1p1pr2/r2kr2R w - - 0 1 legal: proof: c4 b5 a4 g5 axb5 g4 b4 g3 b6 Nf6 b5 Nc6 b7 Ng8 b6 Nd4 fxg3 Rb8 g4 Nb5 g5 Ra8 cxb5 d5 g4 d4 g6 h6 e3 d3 Nh3 Bf5 Ng5 Bd7 Nc3 Bc8 Ne2 dxe2 Kf2 Rb8 Nf3 Ra8 g5 h5 Ne5 Qd7 Ng4 hxg4 Rb1 Qd3 Ra1 Qd8 b8Q Kd7 h4 Ke6 d4 Kf5 g7 Ke4 d5 c5 g6 a5 b7 f5 h5 a4 b6 c4 d6 a3 d7 c3 Qdd6 c2 Bh3 a2 Ba3 f4 Qc6+ Kd3 Qe5 Kd2 b8B f3 b7 Nf6 g8R Qb6 d8Q+ Nd5 g7 Be6 Qg5 Ra4 Bbd6 Rd4 b8Q Nb4 Qbb7 Qa7 Kg3 f2 Qda8 f1R Kg2 g3 Bf5 Bc4 Bd3 Re1 Kf3 Qb8 Bc5 Qc8 Bd6 Qh3 Bc5 Rd7 Ke4 Rd4+ Ke5 Rh7 Rh8 Bd5 g8B Rf7 Bd6 Rff1 Be6 Bh6 Rc8 Rf6 Bc5 Bg7 Rc7 Bb3 Bd5 Rf5+ Ke6 Bf6 Kd7 Rf2+ Kd8 Bc4 Rc8 Bb3 Kc7 Bh8 Kb6 Bg7 Rb1 a1R Bd6 Ba2 Bb3 Be5 Rb2 Kd1 Bc5 Na6 Bcb4 Nc5 Rc7 Bb1 Ra2 Bh8 Qba7 Nb7 Qa6 Na5 Qcb7 Rd5 Rc4 Bc3 Qb5 Rd7 Q5c6 Rd4 Bb2 Rg2 Qcc5 Nc6 Ra6 Ba2 B2a3 Na5 Qcc6 Rf2
4nQN1/p2b1bp1/2NN1BPQ/bQ2n3/5Kr1/N1Qp1nr1/q2P1bk1/1B4B1 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 f5 e4 Bb7 exf5 Qc7 b6 Bc8 b5 Qd8 h4 h5 g4 Qc7 g5 Qf4 Ra4 Qc7 Rg4 hxg4 Rh3 Qd8 Rb3 Kf7 Rb2 Ke8 Rb4 cxb4 Ke2 Kf7 Ke3 d5 f4 e5 c4 g3 c5 b3 b7 e4 c6 g2 h5 b2 b6 Nd7 b8Q Ba3 c7 Ne5 h6 Ba6 c8N Bb7 h7 Qe8 f6 Ke6 f7 Kf5 f8Q+ Qf7 g6 Nf6 Nf3 Kg4 f5 Kh3 Qb3 d4+ Kf4 e3 Nh4 Ne8 f6 Bb4 Qc3 Bc6 b7 Ba5 Nd6 Qa2 f7 Bd7 Na3 b1B Bd3 g1N Nhf5 e2 Ne7 e1B Bb2 Kg2 Ng8 Ngf3 Be4 Bc2 Bf5 Bb3 Bb1 d3 Ba1 Nc7 Qbe8 Rd8 b8N Bf2 Nc6 Nc4 Qee5 Ne8 Qb5 Rb8 Qe7 Rb6 f8B Nce5 Qh4 Bd5 Qh6 Bf7 Be7 Rb7 Bf6 Rc7 Nd4 Rc5 Nc6 Ng4 Bd4 Rg5 Bb6 Nge5 Be3 Be1 Bg1 Bf2 Qc1 Nc4 Bf6 Nce5 Qc3 Rg3 Nge7 Rf8 h8Q Rg5 Q8h7 Rh8 Qg8 Rg3 Qf8 Rh7 Qg5 Rh5 Qh6 Rhg5 Ng8 R5g4#
q3rBN1/2B3NB/1b2b1bN/1P5n/1Nk3nQ/1nqN3P/8/r1N1qKB1 w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 h5 exf5 Ra7 g4 Ra6 gxh5 Ra8 b4 c5 b6 c4 h3 Qd7 b5 Qd8 Ra3 Kf7 Rb3 cxb3 Rh2 Ra7 Rg2 Ra8 Rg4 Ke8 Rb4 axb4 f4 Kf7 d4 g5 b7 e5 h6 e4 f6 g4 d6 Ke6 f7 Kd5 h7 g3 d7 b2 f5 e3 f6 g2 Nf3 g1N Nbd2 b1Q Qa4 b3 Bd3 b2 Nb3 e2 Ne5 Qc2 Be3 b1B Nc1 Qe8 d8B Ba2 Bc7 Bd6 f8N Qe7 f7 Qd7 Nfg6 Na6 b8N Nh6 Nbc6 Rg8 h8N Re8 f8B Qd8 Nhf7 Bb1 Qb4 Nc5 Nge7+ Ke6 Be4 Nb3 Ng8 Bc5 Bh7 Bb6 Qc4+ Qd5 Nb4 Qc3+ Kf2 Bg6 Ned3 Nf3 Kg2 e1Q Bg1 Nf5 Nfh6 Bd7 Nf2 Ng7 Nfd3 Qh4 Kf1 Ra1 Qc5 Qb7 Qg5 Qa8 Qf4 Bc8 Qe4+ Ne5 d5+ Kd7 d6 Ke6 d7 Nh5 Qd4 Qg3 Qh4 Ng4 Na2 Kd5 d8N Bd7 Nab4+ Kc4 Ne6 Bc8 Ng7 Be6 Bf4 Qe3 Bc7 Qee1+
1q3qRR/n7/1N2P2p/Q1RNn1K1/p3Rn1r/R2n1P1q/2b4R/2kN1N2 w - - 0 1 legal: proof: d4 b5 c4 e5 e4 d5 a4 f5 axb5 Ke7 Bd3 Qd7 Be3 Nc6 cxd5 Qd8 d6+ Kf7 d5 Ke8 Bd4 exd4 e5 Nb8 Be4 fxe4 h3 g5 h4 g4 f3 Bh6 g3 Bf4 gxf4 a5 Ra2 Nf6 Ra3 Rg8 Ra1 Rg5 hxg5 Ng8 Ra3 Be6 Ra2 Bc8 Ra1 Qe7 Ke2 Nd7 Na3 Ngf6 Nh3 Kf7 Kf1 Ba6 Ke1 Rh8 Rh2 Nb8 Nb1 Ng8 Rh1 Ke8 Ng1 Qd8 Na3 Bb7 Nb1 Bc8 Kf2 Kf7 Kg3 Kg6 Kh4 Kf5 b4 c5 d7 e3 e6 d3 b6 d2 d6 g3 b7 c4 b5 e2 b6 e1N Rh2 a4 Ra3 c3 Ne2 g2 Ng3+ Kg6 Nf1 c2 Nc3 Nd3 Qe1 Kf5 Nd1 Ne7 g6 c1N g7 g1Q g8R Nbc6 b8R Ba6 b7 Qh1 Rc8 Nce5 b8N Ne2 Rc5 Qf8 d8R Nc8 d7 Na7 Nc6 Bc4 Rb8 Bb3 d8R Bc2 Nb4 Qg2 Rg4 Rg8 Nd5 Rg7 Kh5 Qh3+ Rh4 Rg4 Rbc8 Qd6 Rh8 Qb8 Rcg8 Qf8 Nf2 d1Q Qa5 Qb1 Nd1 Qbb8 Nc7 Kf6 f5 Nec6 Nd5+ Ke5 f6 Kd4 f7 Nce5 Nd1e3 Re4 Nd1 Nef4+ Kg5 Ng2 Rh6 Rh4 Rhg6 Ngf4 R6g7 Qfc8 f8N Qe8 Nd7 Qf8 N7b6 Nb2 Ra1 Kd3 Nf2+ Ke2 Ra3 Nbd3 Rgc7 Qbe8 Rc4 Qb8 Rb4 Ke1 Rc5 Ke2 Nfe3 Kd2 Re4+ Kc1 Nf1 Qbd6 Nd1 Qc7 Rec4 Qcb8 Re4 h6+
4k3/B2q3b/4nq1B/n1NPR1N1/1nBn2BP/r1K1n1Nb/8/2bBBr1N w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 g5 fxe5 h6 g4 Bc5 a4 Bd6 axb5 Bf8 Ra3 Bc5 Rf3 Bf8 Rf4 gxf4 g5 h5 Qb3 Bh6 Qf3 Bf8 Qg4 hxg4 d4 c5 Kd2 f5 h4 a5 e4 g3 g6 f3 d6 f4 e6 g2 g7 c4 e7 f2 d5 a4 d7+ Kf7 e8B+ Ke7 b6 f3 b7 a3 e5 a2 b5 a1N e6 Ra5 b6 Na6 b8B Rh5 b7 Nc7 Nh3 g1N Ba7 Ra3 b8B Nf6 g8B Bh6+ Ng5 Ne2 Nc3 Nc2 Ne4 Ned4 Ng3 Ng4 Bh7 Nge3 Bf5 Ba6 Bg4 Nb4 Rh2 Qc8 d8N Qd7 Nb7 Bb5 Be2 f1B Nh1 f2 Bd1 Bh3 Nc5 f1Q Re2 Qf6 Bg6 Ba6 Bd3 Ke8 e7 Nce6 Bg3 Bb5 Be1 Ba4 Nf3 Rf5 Ng5 Bb3 Kc3 Rf1 B3c2 Ba2+ Bb3 Bb1 Bcd2 Bh7 Bc1 Nec2 Re5 Ne3 Nge4 Kf7 e8N Bg5 Nc7 Ke7 N7a6 Ke8 Neg3 Bf4 Nce4 Bg5 Nac5 Bf4 Kb2 c3+ Kb1 c2+ Kb2 Bg5 Bc4 Bf4 Bcd2 c1N Ng5 Ncb3 Kc3 Ra1 Bf2 Na5 Bde1 Nef5 Bg1 Bc1 Be3 Ra4 Nf3 Ra1 Bh6 Ne3 Ng5 Ra3+
1nr1kNKB/1q1RBn1P/1r3R2/2bbBBR1/3n1qBP/b7/4Rp2/r1B5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 d5 cxd5 Kd7 a4 Ke7 axb5 Ke8 e4 f6 Qf3 Ba3 f5 Bd6 Qf4 Bf8 Kf2 Bd6 Na3 Bf8 Nc4 exf4 e5 Ke7 e6 Ke8 Ne5 fxe5 Ke2 Rh7 Ke1 Rh8 Kf2 g5 Kf3 a5 Ke4 c5 b4 c4 h4 f3 d4 f2 f6 c3 Kf5 c2 Kg6 e4 d6 e3 b6 e2 e7 e1B f7+ Kd7 e8B+ Ke6 h6 g4 b7 g3 h7 g2 d5+ Ke5 b5 a4 d7 Kd6 b6 Ke7 d6+ Ke6 Ra2 a3 Ne2 g1N Bh3+ Ke5 Bf5 Ra6 Nd4 Qe7 d8R Bh6 f8R Be6 d7 Kd6 Rf6 Ne2 Rg1 Bhd2 Rg5 Nh6 Bf7 Bc3 Kg7 Bb4 Rb2 a2 Bg4 Qe8 Bg6 Ke7 B6f5 Bd5 Ne6 a1R Nf8 Nd4 Ra2 Ba3 Rb2 Nbc6 b8B Beb4 b7 Rb6 Be5 Nf7 b8B Bc5 Bbc7 Nf3 Bc3 Nfd4 Be5 Nb8 Rb4 Nb5 Re4 Nd4 B3b2 Nb3 Re2 Nd4 Rc8 Qd8 Rc7 Qc8 d8B+ Ke8 Be7 Qa6 Rd7 Qb7 Be3 c1Q Bd2 Qg1 Bdc1 Qh2 Ne6 Nd8 Bc7 Qf4 Rh6 N4c6 Bbf6 Nd4 Bce5 Rf8 Rhg6 Rc6 Rh6 Rc8 Rhg6 Rf7+ Kg8 Ra2 Rh6 Ra1 Bh8 Rf6 Rhg6 Nf7 Nf8 Rfc6 Rf6 Rb6
3n3N/1rB5/3bBqP1/Bpp1QKb1/BP2B1r1/2n2B2/1kN1Nb1r/3r1N2 w - - 0 1 illegal: No proof kernel
1r1k4/3rq1B1/QnB3p1/4bPNb/qN1P2q1/RR2R1PK/N3r1Bb/8 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 cxd5 b4 exf5 b3 h5 Na6 axb3 Rb8 b4 Ra8 b5 Nb8 b4 c5 b6 cxb4 b7 Nc6 b8Q a6 Qb5 axb5 h6 g6 Rh3 Nd4 Rh2 Ne6 Rh1 Ng7 hxg7 Bd7 Qh5 Be6 Qd1 Bc8 d4 e5 f4 h5 Kf2 e4 Kg3 e3 f6 e2 d6 e1B+ Kh2 b3 Nh3 b4 Nc3 b2 Bd3 b1Q Qf3 b3 Ra7 b2 Bf1 h4 Na2 Qc2 Qe2+ Qe7 d7+ Kd8 f7 b1Q Qa6 Nf6 g8B Qa4 Ng5 Bg3+ Kh3 Bh2 g3 Rh7 Bg2 Qbe4 Re1 Nd5 Re3 Nb6 f5 Bg7 Bd2 Be5 Rb7 Rb8 f8R+ Qe8 Ra7 Bb7 Bd5 Rg7 Rf6 Qe7 Bc6 Rf7 Re6 Rh7 Rb3 Qf4 Bb5 Bf3 Bc6 Bh5 Bb4 Qf6 Bf8 Qe7 Bg7 Qe4 Bh1 Qg4+ Kg2 h3+ Kf2 Qeb4 Bcd5 Qaa5 Bh8 Bc7 Ree3 Be5 Qc4 Ke7 Bc6 Bg1+ Kf1 h2 Kg2 Qab5 Raa3 Q5a4 Qa6 Rf7 Bg7 Qc5 Kf1 Qd6 Bhe4 h1R Kg2 Bh2 Bed5 Re1 Be4 Qf4 Kh3 Re2 Bg2 Qf3 d8N Qc5 Nde6 Qe4 Nc7 Kd8 Nd5 Rd7 Ndb4 Qe7 Rbd3 Qf4 Rdb3 Qg4+
6R1/Nb2p2n/PN1pPRr1/7q/1kb2n2/3p1R1P/B1q3B1/K1n2QBN w - - 0 1 legal: proof: d4 b5 g4 c5 b4 h5 gxh5 cxd4 f4 g5 fxg5 a5 a3 a4 Qd2 Ra5 bxa5 Bg7 Qd3 Be5 Qd1 Bd6 Ra2 Bxa3 Rxa3 Kf8 Ra1 Ke8 Kd2 f5 e4 a3 c4 d3 Kc3 a2 Kb2 b4 e5 d6 g6 Kd7 h3 Kc6 a6 Kc5 g7 f4 h6 f3 h7 f2 Nc3 b3 Nd5 Be6 Bg2 f1Q Ne2 Qe8 Ng3 Nf6 g8B Bc8 Nb6 Bb7 Be3+ Kb4 c5 Nd5 c6 Qh5 c7 Nd7 c8N Nf4 Na7 Nf8 Bg1 Qf2+ Qe2 Qc5 Rf1 a1N Rf3 Qc4 Kb1 b2 Qf1 Nb3 Bf7 Rg8 h8R Rg4 Rg8 Nh7 Bd5 Qc7 e6 Nc1 Ba2 Rg6 Rh2 Qc3 Nh1 Nce2 Bc4 Qc2+ Ka2 b1B+ Ka1 Nc1 Ba2 Nfe2 Rf6 Nf4 Bgd5 Qcd1 Rf2 Qde2 Bg2 Qc2 Bad5 Ba2 Rf3 Bb3 Bc4 Ba4 Bd5 Bb5 Ba2 Bc4
1q1R1B2/1q1p2p1/P1N2KpR/1N3R2/Prb2n2/B1P2p2/2Q2Nn1/1Br3k1 w - - 0 1 illegal: Other
2r1NR2/1k1Pb3/pB1P4/2Q3PB/2pB1Kbp/1NN3p1/b3R1rq/b5R1 w - - 0 1 legal: proof: c4 e5 e4 b5 cxb5 d5 exd5 e4 a3 Bxa3 f4 e3 g3 Bf8 f5 Bxf5 g4 Bc8 h3 f5 Ra3 g5 Ra1 f4 Rh2 Nh6 Rh1 Nf5 gxf5 Nc6 h4 g4 Ra3 Nd4 Ra6 Ne6 Ra1 Ng5 hxg5 Bc5 Rh3 Be7 Rh1 Bf8 Ke2 Kd7 b4 h5 d4 c5 b6 a6 b5 h4 f6 c4 b7 Kc7 b8N g3 Kf3 e2 b6+ Kb7 f7 e1B Be3 Bc3 Nd7 Rb8 Ra2 Qe8 Be2 Bg7 Nd2 Qe5 Nf6 Re8 f8R Ra8 Nb3 Kb8 b7 Re6 Ne8 Ka7 b8B+ Kb7 Ba7 Bf6 Bb6 Ba1 Qb1 Be7 Qf5 Bd7 Bd1 Rd6 Ne2 Rc8 Rg1 Qe4+ Kg4 Qc2 Nc3 Qh2 Kf3 Be6 Ke4 Bd7 Bh5 Rf6 Qe5 Bg4 Re2 Rf7 d6 Rf5 d5 Rf7 d7 f3 d6 f2 Rc2 f1B Qc5 Rf2 Bd4 Rg2 Kf4 Bd3 Rb2 Bb1 Re2 Ba2
r1R1Q3/1Kpr1N1p/P1b1P1p1/6B1/2BPR3/7p/r1BR1p2/rNk2rN1 w - - 0 1 illegal: Other
4RnNN/N4n1R/4nPR1/4q2B/2b2r2/1Q2K3/bbqPPB1r/2qrBk2 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 axb5 d4 g4 f6 gxh5 d3 cxd3 Kf7 d4 Ke8 d5 Qd6 Qc2 Qd8 Qf5 e6 Qg5 fxg5 f5 e5 Ra3 Nh6 Rf3 Ng8 Rf4 exf4 Kf2 Kf7 h4 Kf6 d6 Ke5 f6 c5 d7 a5 h6 g4 h5 g5 b6 f3 b7 Kf4 b5 g3+ Ke1 a4 h7 a3 b6 c4 h6 g2 Kf2 a2 Na3 a1Q Nb1 g4 Rh3 g3+ Ke1 c3 Na3 c2 Rh5 Qe5 Nb5 Ra4 Bb2 Qdc7 d8R Ba3 Re8 Nd7 b8Q Ba6 b7 Nf8 Bd4 Bb2 Na7 Bc4 Rg5 c1N Bf2 Nb3 Rg7 Nd4 Rg6 Nde6 Nh3+ Ke4 Rd8 g1Q Re8 g2 Ng5+ Kf4 Nf7 Qc8 Qa8 Qh1 b8B g1R Qd5 Ba2 Qb3 Qc2 Bb6 Rd4 Kf2 Re4 Bg2 Rd1 Ng5 Kg4 Nf7+ Kh4 Bh3 Ra4 Bg4 Rf4 Bh5 Kh3 Nc8 Qa5 Ke3 f2 Bd6 f1B Na7 Bg2 Bd4 Bd5 Bc7 Rff1 Bg3 Rf4 Be1 Bc4 Bb6 Ne7 Bc5 Nc6 Bd4 Ne5 Bb6 Rg8 h8R Qf1 Rh7 Rh8 Rhg7 Qh1 h7 Qc6 Nh6 Nf7 Ng8 Kh2 Bg4 Kg2 Bh5+ Kf1 Bc7 Rd4 Bcg3 Qc1 Bgf2 Qca4 Qa3 Qac2 Qb3 Rf4 Ne7 Rg8 h8N Qb5 Rh7 Qb8 Rgh6 Rg2 Rg6 Rh2 Ng8 Qe5#
NN1k3B/Pq2r1NQ/6n1/3q4/R2b4/1P2n1r1/rRBnK1bP/b2B1R1b w - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 b3 a4 Qc2 a3 Qc3 Na6 Qb2 Nb8 Nc3 axb2 Na4 Qg5 Nc5 Qe7 Nxb7 Qd8 a4 b1B e4 f5 d4 g5 e5 c5 e6 c4 h6 g4 h7 g3 e7 g2 d6 f3 d5 f2+ Ke2 c3 a5 f4 a6 c2 Nc5 Nd7 Nh3 g1R Ra4 Nb6 Ng5 Bb7 Nd7 Bg7 Nb8 Nc4 Ne6 Bd4 Bb2 c1B Ba1 Be4 d7+ Kf7 e8B+ Ke7 Bc3 Bb2 Ng7 Rg3 Bg6 Bg2 Bc2 Ne3 Bd1 Qb6 d8N Ba1 Nde6 Qd6 Nc7 Kd8 Rg1 Ne7 Bb2 Qe6 d6 Ng6 d7 Re8 h8Q Qd5 Qh7 Re7 Bc2 Ra7 Na8 Bh1 Bh3 f1N Bg4 Nd2 Rf1 f3+ Ke1 f2+ Ke2 Bc6 Bc3 Rc7 a7 Bb7 Bd1 Rc6 Bf5 Ra6 Bfc2 Bc6 Rc4 Ra2 Ra4 Bc5 Nf5 Bb6 Bh8 Bbd4 Ng7 Qg8 Qh5 Bcg2 Qh7 Qd5 Nb6 Kc7 d8R Qb7 Rf8 Qd5 Rf3 Kd8 Na8 Rh3 Re1 Qd6 Kd3 f1Q+ Be2 Rf7 Rb1 Re7 Rb2 Rg3 Rf4 Qf2 Bed1 Qf3 Rf5 Qfc6 Rf1 Qdd5 Ke2 Qb7
3qRN1n/2P5/q1kB1bP1/1R1q4/Q1B1Pq2/3Nq1nb/2Nrn1R1/1K2B2q w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d3 c5 d4 cxd4 h3 g5 gxf5 a5 h4 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 h5 b4 d5 e4 Kd7 c4 d3 b6 h4 c5 h3 f6 g3 f7 d4 g6 a4 b5 h2 b7 f3 b6 a3 Bb2 a2 Kc1 d2+ Kc2 f2 Nh3 g2 Qf3 g1Q Qa3 d3+ Kb3 d1Q+ Kc3 d2 Qa4+ Nc6 b8R Be7 b7 Qdg4 Kc2 Qf4 Na3 Bf6 Bc4 f1N Rb1 a1Q Bc3 Qge3 Rb5 Ng3 Rg1 h1Q Rg2 Nh6 f8N+ Kc7 Ra8 Nf7 Nf2 Rh2 Nd3 Bh3 Rb8 Qd5 Re8 Nh8 Bb4 Qaf1 Bc3 d1Q+ Kb2 Qfe1 Nc2 Nd4 b8B+ Kc6 Bd6 Qef1 Be1 Qdd2 Kb1 Qa5 Rg1 Rd2 Rg2 Qd8 Ra5+ Kb7 c6+ Kb6 c7 Nde2 Rb5+ Kc6 Bc5 Qfd6 Ba3 Qff4 Bb4 Q6e6 Ba3 Qec8 Bd6 Qa6
1Q1qrqr1/2RR1NRK/2Bnk2P/5r2/3n2BN/2B1Pn1b/1N2n1rP/6r1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h5 gxh5 a5 b3 a4 b4 Bd6 Nc3 Bc7 Nb1 Ba5 bxa5 Kf8 Bg2 Ke7 Bf1 Ke8 Kf2 Ke7 Kf3 d5 c4 g5 b6 f5 a6 d3 c5 a3 c6 g4+ Kg2 g3 Kh3 d4 Kh4 f3 Kg5 d2 Kg6 f2 b7 f4 c7 f3 e3 a2 h6 Qf8 Nh3 g2 Nc3 g1N Qb3 d1R a7 d3 Ng5 d2 Be2 f1R Na4 f2 Nf3 Bh3 c8R Nf6 Nh4 Ne4 Bb2 Nc6 b8N Rg8+ Kh7 Ne5 Qb5 Ke6 Nd7 Rde1 Rac1 a1N Rd8 d1Q Rc7 Nc2 Bc3 Qdd6 Bd1 Nd4 Nb2 Re2 Qb4 Rc8 a8B Rfe1 Bc6 f1R Qb5 Rf5 Qb8 Rd2 Bh5 Nef3 Ne5 Qd7+ Nf7 Nd6 Ba8 Rf2 Bc6 Nge2 Rg1 Ref1 Rg7 Rg1 Bg4 Rfg2 Qa7 Qde7 Rdd7 Re8 Qb8 Qd8
Nqnq3r/1P1b1R2/1QRBp2R/1KnNP1b1/1q3B2/1P1B2b1/4q2q/N4k2 w - - 0 1 legal: proof: h4 a5 a4 d5 d4 b5 axb5 g5 c4 f5 g3 f4 cxd5 c5 Qa4 cxd4 Qb3 Ra6 Qd1 Rg6 Ra2 g4 Ra1 Rg5 hxg5 fxg3 Kd2 Kf7 Kd3 Kg6 Kc4 Kf5 f4 Ke4 f5 h5 e3 g2 b3 h4 b6 d3 g6 h3 b7 a4 f6 h2 g7 a3 f7 d2 d6 a2 d7 g3 Kb5 Na6 Ne2 Kd3 e4 g1B e5 g2 Nbc3 Nc5 Nd5 Bf2 Qe1 d1Q Nd4+ Qe2 Nc2 g1Q Qb4 Qg5 Bf4 Bg3 Rc1 Qg4 Na1 e6 Nc7 Ne7 g8N Bh6 f8R Bg5 Nf6 Qh4 Rf7 Qg4 Na8 Qh4 Rg1 h1Q Nd5 Q1h2 Rh1 Qg4 Qa5 Qgh4 Qb6 Qg4 Ne3 Kd2+ Rc4 Ke1 Nd5 Kf2 Bh3 Qh4 Bf5 Qhg4 Bd3 Kg2 Nc2 a1Q Rc3 Qa3 Na1 Qa7 Rc2 Qb8 Rc4 Qg1 Rh6 Kf1 Rc3 Qh2 Rc4 Qg8 d8B Qgh4 Bc7 Qd8 Bd6 Bd7+ Kb4 Nc8 Ka5 Na4 Rc6 Nc5 Kb5 Bf2 Bd2 Qe4 Bf4 Bg3 Be7 Qd4 Bd6 Qb4+
2r2bq1/2B2nq1/b3bn2/R3R3/N2b1kPR/BP1B4/1pNP1q2/Q1n1N2K w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 d5 cxd5 f5 exf5 gxh4 Qg4 b3 Qe2 Ra5 Qd1 Ra8 Ke2 b5 Qc2 b2 Na3 b1B Ke1 b4 Qd1 b3 Nc2 Ra4 Ba3 b2 Bd3 Rb4 Bf1 Rb3 axb3 Qd6 Bb5+ Qd7 Bf1 Qd8 g4 Bh6 f4 Kf7 Kf2 Kf6 Kg2 c5 d6 e5 d7 c4 Qe2 e4 Bd6 h3+ Kh2 c3 Ra3 e3 Ra7 Nc6 Qd1 e2 Nf3 e1B Bc5 Ne5 Ne3 c2 Bd4 Bf2 Ra5 Ba6 Bb6 Bg7 Be2 h5 Bc7 h4 Ne1 Qf8 d8N Qe7 Nc4 Bd4 Ne3 Qd7 Kg1 h2+ Kg2 Qe8 Nb7 Qg6 Nc5 h3+ Kf2 Qg5 Na4 Bh6 Rg1 h1Q Bf1 Qd5 Rh1 c1N Kg1 Na2 Rh2 Bbd3 Qa1 Bdc4 Bd3 Nc1 Re2 Qf7 Kh2 Qfg6 N3c2 Be6 Re3 Qe8 Kg1 h2+ Kg2 Kf7 f6 Qf5 Re4 Kg6 f7 Kf6 f8B h1Q+ Kg3 Qh7 f5 Kg5 f6 Qf1 Kh2 Qf2+ Kh1 Qee7 f7 Nf6 Re3 Kf4 Re2 Qd7 Ba3 Rc8 f8R Qh8 Rf7 Bf8+ Rh7 Qg8 Rh4 Qdg7 Re3 Bd6 Re2 Nf7 Ree5 Bf8
5q2/n2RP1Nr/1kr1B1KP/2rQN3/3n3n/1p1p2P1/R2R4/NB1bBb1b w - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 Na3 g5 Qd2 h5 gxh5 g4 Nh3 g3 Nb1 g2 Ng1 Bh6 Qd3 Bf4 Qd1 Bg3+ hxg3 Ra6 Rh4 Ra4 Rh1 Ra8 Kd2 f5 Kd3 d5 e4 Kd7 c4 Kc7 a4 b5 c5 b3 h6 b2 e6 f4 e7 f3 e8N+ Kb7 a5 b4 c6+ Ka7 a6 f2 c7 b3 e5 Nc6 e6 Nf6 e7 Kb6 a7 Bb7 c8B Nh7 Ng7 Nf8 Be6 Rh7 Nf3 g1N Na3 b1R Bd2 Ng6 Rh2 Qf8 Nc2 Rc1 Be1 Ne2 Ra2 Rc8 a8R Na7 Na1 R1c5 Ne5 R8c6 Rd8 Nh4 Rd7 Ba8 Bfh3 f1B Bhf5 Bb7 Kd2 d3 Ke3 d2 Bb1 d4+ Ke4 Nc1 Qf3 d1B Rhd2 d3 Qf5 Ne2 Qf7 Nf3 Kf5 Nh4+ Kg5 Nd4 Qf3 Rc7 Qd5 Bc6 Qc4 Bh1 Qd5 Nhf3+ Kh5 R7c6 Kg6 Nh4+
r1B2K2/4N2n/qNb1P3/1R4Rb/1q2R1QP/1P1p4/4p1Bn/N1rknbB1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 e5 Kf2 h5 g4 b5 gxh5 Bd6 axb5 Qe7 Kg3 Qe6 Nd2 Qc4 Nb1 e4 e3 Be5 fxe5 Qd3 Kg4 Qxe3 Kh4 Qd2 Kg3 Qe2 Kf4 Ke7 Kg5 Ke6 h4 Kd5 h6 Kc4 h7 f5 Kg6 d5 Kf7 g5 c3 a5 b6 a4 e6 f4 b7 e3 Qb3+ Kd3 Qb4 Kc2 c4 a3 c5 f3 b3 a2 c6 f2 c7 g4 Bd2 d3 Qa3 d4 Ke8 g3 Be1 g2 Nh3 g1Q Qb2+ Kd1 Kf8 d2 Nf4 Nc6 b8R Qgg4 Rg1 Ne5 Nd5 Qa6 Bg2 f1B Nb6 d3 Qd4 Bb7 c8B Nf3 Bf2 Bc6 Qb4 Nh2 Na3+ Ke2 Qd4 d1B Nc2 Qe4 Rb1 a1N Qg7 Kd2 Qg4 Bf3 Re1 Nf6+ Kg7 Rd8 h8N Qb4 Ng6 Rd5 Rb7 Rc5 Ne7 Rc3 Re2+ Kd1 Kf8 Rc4 Nd5 Rc3 Rb5 Rc5 Nb6 Rc4 Qd4 Bh5 Qg4 Rc3 Bh1 Rc4 Rg3 Rc3 Bg2 Rc5 Bg1 Rc3 Rf2+ e2 Rff5 Rc5 Re3 Rc4 Rg5 Rc5 Na3 Nc2 Re4 Ne1 Nc2 Rc3 Na1 Rc4 Kg7 Rc1 Kf8 Nh7+
1b1b4/1r1QR3/PNqR2RB/4n3/P1prq1BB/N2k2PK/6pn/N4nn1 w - - 0 1 legal: proof: f4 a5 c4 g5 e4 h5 b4 d6 bxa5 h4 d4 b6 e5 h3 c5 Kd7 c6+ Ke6 d5+ Kf5 Qd4 Bd7 cxd7 Kg6 Qd2 gxf4 exd6 Kg5 g3 Kf6 Qg2 hxg2 Kf2 Kf5 h4 Ke4 a4 c5 a6 f5 h5 e5 h6 b5 h7 f3 Bh6 f4 Rh5 b4 Nh3 c4 Bg5 b3 Ng1 b2 Bh6 Nf6 Rg5 Ra7 Na3 b1Q Rg4 Nc6 Rg6 Nd4 Ne2 Qc8 d8R Ng4+ Kg1 Rb7 d7 Bd6 Nc1 Bb8 d6 Qc6 Nb3 Ke3 Ra2 e4 Na1 Ne5 Kh2 f2 Kh3 Ndf3 Be2 f1N Rd2 Rg8 h8N N1h2 Re8 Qc2 Ree6 Rd8 Nf7 Qb1 Re7 Ng1+ Kh4 Qd3 Bg4 Kd4 Rd1 f3 Rd2 e3 Rd1 Re8 d8Q e2 d7 e1B Nd6 f2 Nc8 f1N Nb6 Ba5 Qc7 Rf8 d8B Rf4 Qd7+ Kc3 Rd2 Qc2 Rdd6 Rd4 Qc7 Q2e4 Qd7 Ne2 Kh3 Kd3 Rf7 Rc7 Bh4 Rb7 Nc8 Bb6 Re7 Bd8 Nb6 Ng1#
bN5N/1r6/pR1P1P1b/2Br1B2/2q2Rrr/1nk3Pq/KpnNQB2/4R3 w - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 c4 f5 exf5 g5 cxd5 gxh4 a4 cxb4 axb5 Qd6 Ke2 Qb6 Ke1 Qd8 f4 Kf7 d4 Kf6 Kd2 h5 Kc2 e5 Kb2 b3 d6 a6 d7 e4 d5 h3 g3 e3 d6 h4 b6 h2 b7 e2 Qd5 e1R Qd1 h3 Ra4 Nh6 Ra5 Ng4 Bd2 Re4 Qe2 Bh6 Nf3 Ra7 Be1 Qg8 Nh4 Nc6 b8N Nd4 Bf2 Ne3 Rb5 Rb7 Rb6 Nec2 Nd2 Qc4 Ng6 Rg8 Kb1 b2 Nh8 Nb3 Ka2 Rg4 d8B+ Ree7 Rg1 h1R Bg2 h2 Bh3 Bd7 Re1 Bc6 Bc7 Re5 Bc5 Rd5 Bf2 Kg7 f6+ Kg8 f7+ Kg7 f5 Kf6 Be3 Ke5 f8R Rf1 Bd8 Rff4 Bc5+ Re4 Bg5 h1Q Bge3 Qg2 Bf2 Qh2 f6 Rh4 Bf5 Qh3 Bfe3 Reg4 Rc8 Rf7 Rc7 Ba8 Rcc6 Re7 Rb4 Rb7 Rcb6 Bg5 Ra4 Bh6 Bf2+ Be3 Bb4 Kd4 Bc5+ Kc3 Rab4 Bh6 Ra4 Qd3 Rf4 Qc4
6kB/r1qRB2N/b2n1BK1/b1Pp2P1/b3qn2/4b2p/1n1R1P2/N1N3RQ w - - 0 1 illegal: No possible last move
2R4N/7q/q1BbR1p1/3q1rpB/5Nn1/P1n2PP1/1b1QRBn1/knN2K2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 f4 h6 Qc2 Ra7 Qf5 Ra8 Qg5 hxg5 Kd1 e5 Nc3 f5 Ke1 b5 Ba3 e4 Kd1 Ra6 Ke1 Re6 Kd1 Re5 fxe5 f4 Bc1 f3 Nb1 f2 Nc3 Bg4 Nb1 Bf3 exf3 Qd7 Be2 Qe7 Bf1 Qd8 Ke2 Kd7 h4 c5 d4 c4 d6 Ke6 g3 Kd5 d7 e3 h5 c3 h6 Kc4 a3 Kb3 h7 c2 d5 Na6 d6 Nc7 e6 Nd5 e7 Nc3+ Kd3 e2 e8B Nf6 Ra2 Ng4 Be3 c1B Rh6 Bb2 Bh5 e1N+ Kd2 Be7 Ne2 Ng2 Nf4 Rf8 h8N Rf5 Re6 g6 Be2 f1Q Bf2 Qg8 d8Q Qh7 d7 Bf8 Bd3 Bd6 Be4 Qc4 Ba8 Qc6 Kd3 Qa6 Kd4 Kc2 Bc6 b3 Nd2 b4 Qa5 Kc1 d8R Kc2 Rc8 Kc1 Nc4 Kb1 Kd3 Ba1 Be4 b2 Bc6 b3 Qd8 Kc1 Qa5 b1N Rae2 Bb2 Qd5 Nd2 Qa5 Kb1 Qd8 Ka1 Qa5 Nb5 Ne5 Nb1 Qd2 N5c3+ Kd4 Bb4 Ned3 Bd6 Nc1 Qe7 Ncd3 Bc1 Ne5 b2 Ned3 Qh7 R2e4 Nh6 Qe2 Nd2 R4e5 b1Q Qd1 Nh4 Ke3 Qa2 Qc2 Ndb1+ Qd2 Bb2 Nc1 Qd5 Re4 Nb5 Ke2 Ng2 Kf1 N5c3+ Re2 Ng4
b3B1n1/1r1q2PR/B3P1B1/NN6/n1Q1pq1n/n3K3/RP1R2qp/3rk1N1 w - - 0 1 legal: proof: e4 b5 d4 d5 h4 dxe4 a4 g5 hxg5 c6 axb5 c5 f4 e5 d5 e3 Bd2 e4 Bc3 Bg7 Bd4 Be5 fxe5 cxd4 Ke2 Ke7 g4 a5 c4 h5 d6+ Ke6 d7 f5 b6 f4 g6 d3+ Ke1 f3 c5 Kd5 b7 Kc4 c6 h4 c7 h3 g7 e2 Kf2 e1N e6 h2 g5 a4 g6 a3 Bg2 a2 Qd2 Ra7 Qa5 d2 Na3+ Kd3 Qa4 d1Q Qc4+ Kd2 Nb5 Qf6 d8N Nd7 b8R Nc5 Bh3 Ng2 Nb7 Na4 Bf5 Nh4 Na5 Bb7 c8B Ba8 Ba6 Rb7 Re8 Qe5 Re7 Qf4 Rf7 Qb3 Rc7 Qd3 Re7 Qd7 Rf7 Nf6 g8B Rh5 Bh7 Ng8 Bg4 Rd5 Bh5 Nf6 g7 Rd6 Rf8 Ng8 Be8 Rd4 Bhg6 Rd3 Rc1 a1N Rc2+ Kd1 Re2 Nc2 Rf5 Na3 Rh5 Rc3 Rh7 Rc1 Re3 Kd2 Rc3 Rd1 Rc1 Qe5 Ra1 Qf4 Ra2 Qff7 Kg3 f2 Kg4 Qf3+ Kg5 Qg2+ Kf4 Ke1 Ke3 f1Q Ne2 Nc5 Rg1 Qg4 Rg2 Na4 Ng1 Qf8 Rf2 Qg2 Rd2 Qf4+
RR1B2r1/1p1nn3/bP6/rQ2B1N1/P1N1p3/NRr3P1/1K2rbbr/3kB3 w - - 0 1 legal: proof: h4 c5 d4 d5 e4 f5 exf5 g5 c4 gxh4 cxd5 a6 b4 Qc7 b5 Qd6 b6 Qc6 Bb5 axb5 Be3 c4 Bc1 Qc5 dxc5 Bh6 Ne2 Bg7 Ng1 Bf8 Kd2 Kf7 Kc2 Kf6 f4 h5 a4 e5 c6 h3 g3 e4 d6 c3 d7 h4 d8N b4 c7 h2 Nf7 h3 Qf1 Ra5 Qa6 Nd7 Bd2 Ne7 Ne5 Rg8 Na3 b3+ Kc1 c2 Kb2 c1R Rb1 Rc6 Be1 Rc3 Ngf3 Bg7 Rf1 h1R Ng5 h2 Qb5 Rg1 Rf2 h1R Nec4 Rg2 Rc2 Re2 Rd2 Ree3 Rd3 Nb8 Rd8 Bd7 c8R Rh2+ Ka1 b2+ Ka2 Na6 Ra8 Nc5 Rdb8 Bf8 Rd1 Be6 Rd3 b1B+ Ka1 Bc2 Ka2 Nd7 Kb2 Kg7 f6+ Kh6 f7 Kh5 f5 Kg4 f6 Bd1+ Nc2 Be2 N2a3 Bh6 f8B Bf1+ Kb1 Bg2 f7 Bg7 Ka2 Bd4 Bg7 Bc5 f8B Bf7 Ne6 Kf3 Kb2 Ke2 Be5 Bd4 Ng5 Bc5 Nd2 Bc4 Bfg7 Kd1 Bgf6 Rc1 Rb3 Rcc3 Qc6 Ba6 Ndc4 Red3 Qb5 Bf2 Bc7 Rf3 Bd8 Rfe3 Be5 Re2+
kNRrQq1B/r7/qq2P3/2rp2rR/6Pp/n2B1K2/3P1NBN/n1r3R1 w - - 0 1 legal: proof: f4 b5 Kf2 f5 a4 e5 b4 exf4 g3 f3 axb5 c5 Ke3 f2 Kf3 cxb4 Kg2 Qa5 Ra3 Qb6 Ra1 Qd8 Kf3 g5 Ke3 f4+ Kd4 Bd6 Kd3 Bb7 Ra3 Bf3 Ra1 Bg4 h3 f3 Qe1 Bf4 gxf4 Be6 Qd1 g4 Ra4 g3 Ra1 Bg4 hxg4 Qc7 Ba3 Qb6 Bc1 Qd8 Ke4 h5 c4 a5 c5 d5+ Ke3 Kd7 b6 Kc6 f5 Kb7 f6 b3 f7 g2 f8R a4 Nc3 a3 Qc2 h4 Qa2 b2 Rh3 b1Q Kf4 Ra7 e4 Nf6 e5 Ne4 c6+ Ka8 e6 Nc5 c7 Nba6 c8B Nb4 Rf5 Nb3 Rh5 Nc2 Bb2 Rg7 Bd3 f1Q Bca6 f2 Nf3 g1R Ne4 Rg5 Nh2 Qf8+ Bf6 Rh1 Kf3 Rhg8 Qb2 a2 Qd4 Qb2 Qa4 Na3 Rg3 Qd4 Rc1 a1R Rg1 Ra2 Qd7 Na1 Qf7 Rc2 Bh8 Rc5 Rc2 Qb4 Rc3 Qb5 Rc4 Qfb1 Bf1 Q1b4 Bg2 f1R+ Nf2 Rc1 Rc3 Q5a5 Bd3 Qa6 b7+ Kb8 Bgf1 Qbb6 Bg2 Ka7 b8N+ Ka8 Rd1 Re1 Rc2 Re4 Rg1 Ra4 Rc4 Qe7 Qg6 Rd8 Qe8 Qf8+ Ke2 Rca5 Rc8 Rac5 Ke3 Rf4 Ke2 Rf7 Ke3 Ra7 Ke2 Qg8 Kf3 Qf8+
1qrnb3/5P1n/3NRR1r/kBBRK3/2PbN1p1/NP4p1/1r5p/B1rQ4 w - - 0 1 legal: proof: d4 b5 h4 d5 g4 f5 a4 g5 axb5 c5 e3 cxd4 e4 Qd6 exd5 Qh6 Nd2 fxg4 Nb1 g3 Bd2 g4 Bc1 Qg5 hxg5 Bg7 Bf4 Bh6 Bc1 Bf8 Kd2 Kd7 Kd3 Kc7 Ke4 Kb6 f4 a5 g6 e5 f5 h5 b3 d3 d6 d2 g7 a4 d7 h4 d8R h3 f6 h2 f7 a3 Bb2 a2 Na3 Ka5 b6 Nc6 b7 Bc5 b8B Bd7 Bb5 Be8 c4 Bd4 Ba7 Rc8 Nh3 Rh6 Rd5 Nd8 Re1 Nf6+ Kf5 e4 g8N e3 Nf2 e2 Ne4 Nh7 Ne7 Rh3 Rf1 e1R Bc5 Re2 Kf4 Rh5 Nf5 Rh6 Nfd6 Rg2 Rc1 a1R Rf3 Rb1 Ba1 Rf2 Rc3 Rc1 Re3 Rg2 Ng5 Rf2 Re6 Re2 Nge4 Rg2 Qf1 d1Q Rf2 Qd3 Qd1 Qd2+ Kf5 Qb4 Rf1 Rb2 Kf4 Bg1 Ke5 Be3 Rff6 Bf2 Ba6 Qb8 Bb5 Bd4+
1Q1r4/b1Rp1RN1/Kq3PBP/5Rp1/1P2BN2/3p4/1b1Bpq1k/3bq1nN w - - 0 1 legal: proof: d4 b5 e4 c5 h4 cxd4 a4 g5 axb5 f5 g4 a5 h5 Ra6 Bc4 fxe4 Bf1 Rg6 Bd2 Nc6 Bc1 Ne5 hxg6 h5 Na3 h4 Nb1 Nd3+ Kd2 Nf4 Ke1 Nh5 gxh5 Qb6 Ne2 Qc7 Ng1 Qd8 Kd2 e5 b4 Ke7 c4 Ke6 f4 Kf5 g7 a4 c5 e3+ Kd3 a3 Kc4 h3 c6 a2 h6 e4 c7 e2 b6 Kg4 Kb5 Kg3 b7 e1B b8R e3 f5 h2 f6 e2 Bg2 Bd6 Nd2 Rh7 Nh3 Bf2 Rf1 h1Q Be4 Ne7 g8B Qg2 Bf7 Rh8 Nf4 Nd5 Bfg6 Bb7 c8N Be5 Ne7 Kh2 Nf5 Bc6+ Ka6 Ba4 Ng7 d3 Qc2 Re8 Qc7 Bd1 Rc8 Be3 Qb8 Ba7 Rc7 Bb2 Rf3 Qf2 Nf1+ Kh1 Ng3+ Kh2 Bd2 Rf8 Nfh5 Nf4 Nh1 Nh3 Rf5 Ng1 Nf4 Re8 Rac1 Rg8 R1c5 a1Q+ Ra5 Qc1 Rae5 Rf8 Re7 Qc3 Be3 Qce1 Rf7 Rg8 Bd2 Rh8 Rc2 Qc7 Rc3 Rd8 Rc1 Qcc5 Rc2 Qcd4 Rc7 Qb6+
4R2n/2q1b2N/rB4rk/3P1q2/r1QbBr2/Pb1NNK2/4nPR1/r1B1R1q1 w - - 0 1 illegal: No possible last move, all moves rejected
R4NNr/2N4n/r1B3bP/3Rb1P1/2nrP2K/B2qQ3/B1brnqk1/2R3r1 w - - 0 1 illegal: No proof kernel
1q1Q2r1/n1R3n1/2PR3P/Pbq1Kbbq/k3nN2/2B3B1/b1r1NN1r/3R1B2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 b5 Kd3 d5 h4 Kd7 a4 Kc6 f4 e5 c4 g5 h6 g4 a5 e4+ Kd2 g3 f6 e3+ Kd3 b3 h5 b4 c5 Kb5 f5 g2 f7 e2 h7 e1R f6 b2 Ra4 b3 Ne2 g1Q Nd2 b1N Nc4 b2 Nb6 Be7 f8R Nc6 f7 Na7 c6 Bg5 Nf4 Re2 Ne6 Nh6 Ra3 Rc2 Nd7 Nf5 Nf6 Nc3 Bf4 b1B Ne4 Ba2 Nf2 Ng7 Bg3 Ne4 Nf4 Bf5 Ne2 Qb8 Rc8 Rg8 Rb3+ Ka4 f8N Rh8 Ng6 Rg8 Bh3 Rh8 Qd2 Qc1 Rd1 Qa3 Ngf4 Qc5 Rc7 Rg8 Ng1 Rh8 Ke2 d3+ Kf3 d4 Bf1 Rg8 Nge2 Rh8 Qc1 d2 Rd3 Rg8 Qb2 Rh8 Qb6 Rg8 Re1 d1Q Rd2 d3 h8B Qb1 Rc1 Qbb5 Rdd1 d2 h6 Rd8 Rb1 Rd4 Rb3 Rb4 Rd3 Rbb2 Rd4+ Qbc4 Nc1 Nh5 Qa6 Rc3+ N4d3 Qbb4 Ng4 Qf7 Qc8 Qe8 Bf6 Ng7 Rd6 Qh5 Qd7 Rg8 Qd8 Qb8 Bd4 Bf6 Kf4 Rc4 Ne3 Rc3 Nd5 Bg5+ Ke5 Rc4 Ne2 Rc1 Ng1 Rc3 Rb1 Rc1 Bc3 d1B Ra1 Rg2 Nf2 Be2 Rb1 Rc2 Rd1 Bb5 Ne2 Qcb6 Ndf4 Rh2 Bh4 Qe3 Bg3 Qc5+
rqn1B3/q2P4/1N5R/kn1b1P2/rn1BP1K1/2bqN2N/2QRB2r/3Rrb2 w - - 0 1 illegal: No proof kernel
b3Rb2/P1q1Nn2/5bB1/2r1N1rP/qn1k1B1K/PQ1N1q2/B6R/rrnR4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 h4 Kf6 d4 b5 e4 c5 a6 g5 a7 g3+ Kg2 b4 d6 b3 h5 g4 d7 c4 Qe2 c3 Nh3 c2 Nc3 b2 Nd1 b1R Qf3 Nc6 Bd3 Nb4 Be3 c1N Bb5 Qc7 d8N Bb7 Bf1 Nh6 Nc6 Ke6 e5 f5 Ne7 Nf7 Bd2 Rc8 a3 Rg8 Ng1 Ba8 Nf2 Rg5 Ra2 Ra1 Nd3 Rb1 Nc6 Ra1 Qe3 Kd5 e6 Rb1 e7 Ra1 Be2 f3+ Kf1 f2 Kg2 f1R e8B f4 Ne7+ Kc4+ d5 Rd1 Qf3 Kd4 d6 Rf1 d7 Re1 Rh2 Rf1 Qb7 f3+ Kh1 f2 Kg2 Rd1 Bf4 Re1 Rd2 f1Q+ Kh1 Rb1 Rd1 Qf2 Bf1 Qfc2 Bg2 Qa4 Bd5 Ra1 d8R Rb1 Rc2 g2+ Kh2 g3+ Kh3 Ra1 Kh4 Rb1 Nh3 g1B Nhf2 g2 Ng4 Bh2 Nge5 g1Q Rf2 Qh1 Ba2+ Qd5 Re2 Bg1 Rh2 Be3 Bd7 Qf3 Re8 Bd2 Bf5 Bc3 Be4 Ra1 Qc6 Nb3 Ng4 Qb6 Qe6 Rcc5 Bg6 Qc7 Rdd2 Reb1 Rd1 Nc1 Qb3 Bb2 Nge5 Bc3 Nd7 Bb2 Be5+ Ke3 Bd6 Bf6 Bf4+ Kd4 N7e5 Qd5 Nd7 Qdc6 N7e5 Qf3
3B3k/b1n1bq2/RnbRB1Pb/2Nq2rn/4B2R/QrbP1P2/4NNK1/b7 w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 g4 Kf7 b4 Kg7 d3 e5 b6 h5 b5 c5 f3 a5 Kf2 c3 b7 e3+ Kg3 e2 b6 e1Q+ Kh2 e4 g6 h4 g5 h3 Qb3 c4 Qa4 e3 Qa2 e2 Be3 a4 Qa3 c2 Nd2 c1B Bd4+ Nf6 Rb1 c3 Rb5 c2 Be5 Na6 b8N Rg8 b7 Kh8 Ba1 Bd7 Bb2 Bc6 Qd6 a3 Rb6 a2 Ne4 a1B Qa3 Qd5 Nd7 Be7 b8R Nc7 Ra6 Be3 Rbb6 c1B Ndc5 Rab8 Nf2 Bd4 Bc3 Nd7 Ba5 Bdc3 Kg3 h2 Bh3 Qd1 Kg2 e1B Be6 Q1b3 Ne2 Bf4 Rb4 Nb6 Rd4 Bed2 Bf5 Bde3 Be4 Qf7 Rd6 Qbd5 Rb1 h1N Rb4 Ng3 Rd4 Nc8 Ra4 Rb3 Bb6 Na8 Bd8 Ncb6 Rb4 Rg7 Rd4 Nh5 Rc4 Rh7 Rd4 Nc7 g7+ Kg8 Rda4 Rh6 Rb4 Rg6 Rd4 Kh7 g8B+ Kh8 Rda4 Bfe5 Rb4 Bg7 Rc4 Bh6 Rca4 Rf6 g6 Rf5 Rb4 Qf6 Be6 Qf7 Rd4 Rg5+ Ng4 Qff5 Nd7 Qa5 B4d5 Nba8 Rf4 Ba7 Be4 Qad5 Nc5 Ng3 Nf2 Nb6 Rg4 Qf7 Rh4 Nh5+
5brn/N3q2k/3q4/1n2Bnr1/BR4b1/1rr1P1rN/1RnP1PR1/1B1Q1N1K w - - 0 1 illegal: No proof kernel
6n1/Nq1qPR2/b2Q1N1q/kB1Rb1B1/r2P4/Pb2b1r1/1bB2q2/1K1n1R1N w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 h4 Kd7 e4 b5 d4 c5 Kd2 Kc7 Kc2 Kb6 d6 f5 a3 g5 h5 b3+ Kb2 b4 h6 g3 e6 f4 d7 g2 h7 g4 e5 f3 e7 c4 e8B g3 e6 f2 e7 Ra4 Nh3 g1Q Bf7 g2 Qe1 Ba6 Qe5 Nc6 Qf6 Ka5 Be6 Na7 Bd2 c3+ Kc1 b2+ Kc2 b3+ Kd1 Bg7 Ra2 Qh2 Bb5 g1B Bg5 c2+ Kd2 f1Q+ Nf2 Qh5 Bf5 Qh6 Qd6 Be5 Nc3 b1Q Nce4 b2 Nf6 c1B+ Kc3 Qe8 d8N Qd7 Bc2 Qe2 Rh5 Qf1 Nh1 Bge3 Ra1 Qf2 Bd1 Qe4 Bc2 b1B Kb3 Qeb7 Nc6+ Kb6 Kc3 Ba2 Kd3 Bb2 Rf1 Nc8 Na7+ Ka5 Bh4 Nb6 Bg5 Bbc1 Kc3 Bf7 Kd3 Nc4 Kc3 Bd5 Kb3 Bf7 Ka2 Nb2+ Kb1 Bd5 Rh3 Nd1 Rf3 Bb2 Rf5 Bb3 Rf4 Qg6 Rf3 Nh6 Rf5 Rg8 h8R Rg7 Rd8 Ng8 Rf8 Qh6 Rf7 Bg3 Rd5 Be5 Bf4 Rg2 Bg5 Rg3
k2B4/2R4B/rbp1P1KR/RP3r2/BbQ2N2/rn1N4/P2nq1nq/1b1Nq3 w - - 0 1 illegal: No proof kernel
QRq2b1N/2bR1qk1/5N2/1BrBN3/nPpnR2P/1P2b1b1/5B2/1K3rnb w - - 0 1 legal: proof: g4 d5 f4 h5 c4 hxg4 cxd5 b5 f5 b4 a3 e6 axb4 exf5 Ra5 f4 Ra6 Qd7 Ra1 Qd8 h4 a5 e4 c5 d4 g5 Kd2 f5 Kc2 Kf7 e5 a4 e6+ Kg7 b3 c4 e7 a3 e8B f3 d6 g3 d5 a2 d7 g2 d6 f4 Bf7 g4 Qd2 g3 Kb2 f2 Qe2 f3 Be8 Na6 Nh3 g1B Qd1 g2 Bf4 Bb7 Qc1 Rh5 Qe3 Nh6 Kc2 Nc5 Nd2 Na4 Qe4 Bh2 Re1 a1B Bg3 g1B Bg2 f1Q Nf2 Rc5 Kb1 Bb2 Nd3 f2 Ne5 Qc8 d8N Nf5 d7 Bc1 Ndf7 Nd4 d8R Ra6 Re3 Rf6 Bb5 Ba8 Nh8 Rf3 Bf4 Bg3 Re2 Bb7 Be3 B1h2 Qc6 Rf5 Ne4 Rf7 Nf6 Ba8 Nf3 Bc7 Qa6 Bhg3 Ne5 Bb7 Bd5 Bc6 Be6 Ba8 Rh2 Bh1 Bd5 Qg1 Rd7 f1N Nh7 Qb8 Nc6 Qg2 Qa8 Qf3 Bg1 Qf4 Re8 Qf5+ Rc2 Nh2 Ne5 Nhf3 Rc8 Qe6 Re2 Qf6 Be3 Ng1 Re1 Qb7 Rb8 Qc8 Re2 Qe7 Re1 Rf2 Nf6 Rf1 Bf2 Qf7 Re4 Be3+
1n6/R2n3p/1nN3Rn/n1B2q1B/4N2P/2b2qQ1/b1rrP1qP/k1B1KR1N w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 Qh4 gxh4 cxd4 b3 Ke7 c4 Ke6 c5 Ke5 b6 f5 c6 d5 b7 g5 c7 a5 Qd2 g4 Bb2 g3 Qd3 f3 Nh3 g2 Kf2 g1N Ng5 f4 b4 a4 b5 a3 Nh3 a2 Qc3 Nh6 Qb3 Be6 c8R Bg7 Rc5 Rc8 Bc1 d3 Rc4 d4 b6 d2 Qd1 Na6 b8N d3 Rc6 Kd4 Qe1 d1Q b7 d2 Ba3 Qb3 Qc1 d1N+ Ke1 f2+ Kd2 f3 Bf8 Nb2 Nf4 Na4 Qd1 Nb6 Nd7 Nb8 Bh3 f1Q Nc3 f2 Nh5 Qg2 Ne5 f1Q Qe1 Qf5 Ne4 Ra4 Nhg3 Nf3+ Kc1 Ra5 Rf1 Rd5 Bg4 Qa3+ Kd1 Rd7 Nd3 Ne5 Nb4 Qaf3 Nh1 Bf7 Rf6 Rc2 Nc6+ Kc4+ Bd6 Kb3 Bh5 Kb2 Qg3 Bd5 Bc5 Rd8 Rc1 a1N Rg6 Nb3 Ra1 Bc4+ Ke1 Rdd2 Ra7 Na5 Ba3+ Ka1 Bc1 Na6 b8B Ned7 Bf4 Bc3 Bd6 Ba2 Bc5 Nab8
1q1n1bB1/P1b1N2P/kbR4q/1bp2r2/3QN1R1/B1q1Pn1R/B3K3/1r2N2b w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 h4 Kd7 d4 b5 a4 g5 d6 Kc6 d5+ Kb6 d7 f5 d6 f4 a5+ Ka6 e6 b3 e7 g3 e8B b4 h5 f3 h6 b2 h7 b3 Be3 f2+ Kd2 g2 Bf4 g4 Rh5 g3 Rg5 Bb7 Rd5 Qf6 d8N Nh6 d7 Nc6 Ra3 Ne5 Bg6 Rb8 Bh5 Nhf7 Ke3 Nf3 Bd6 Qh6+ Rg5 c6 Nc3 b1B Bg4 b2 Ne4 Bc2 Be6 b1Q Qd4 Ba4 Ba2 Qb4 Rd3 Qc3 Ba3 Ba8 Ne6 Rb7 d8R Rb1 Rc8 Nd8 Nf4 Rg8 Rg4 Rg5 Nd5 Rf5+ Rf4 Bb7 Ne7 Ba8 Nh3 g1B Nhg5 g2 Rg4 Bh2 Bg8 Kb5 a6 g1B a7 Ka6 Ba2 Bc7 Bh3 c5 Bg8 Bb6 Rc6 Bh2 Bf1 Qg6 Bg2 f1Q Ba2 Ng1 Nf3 Bc7 Ne1 Nf3 Bg8 Qh1 Ba2 Qgh6+ Kf2 Nh2+ Rf3 Qf4 e3 Qh6 Bh3 Qg1+ Ke2 Qg3 Bf1 Qgd6 Rh3 Nf3 Bc1 Qde6 Ba3 Qc8 Bg8 Qb8 Kf2+ Ka5 Bfc4 Bb7 Bce6 Ka6 Ke2 Qa5 Ng5 Nh2 Rd6 Bh1 Rc6 Nf3 Ba2 Qc3 Ne4 Bb5+
3rRR2/p1Pr1rRr/1Q3r2/1rb4P/PBN1bq2/4n1K1/3r1n1N/k2B1BN1 w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Kd7 e4 f5 d4 b5 a4 g5 h4 g3+ Kf3 b4 e5 g2 d6 Ke6 c6 Kd5 c7 g4+ Kf2 f3 e6 f4 e7 b3 e8B b2 d7 g3+ Ke1 f2+ Ke2 Kc4 d5 Bc5 d6 Rh7 h5 Na6 Be3 Qh4 d8R Nf6 d7 Nb4 Kf3+ Nd3 Qd2 Kb3 Qe1 Nd5 Bf7 Bb7 Nh3 g1R Rf8 g2 Be6 Rd8 Na3 b1R Qa5 Kb2 Bd2 Ne3+ Bd5 Rd1 Bb4 Rd2 Re1 Qg5 Re2 Ka1 Qb6 Qf6 Rh2 Rh1 Nc4 g1R Bc6 Rgg7 Rg2 Rg1 Rg6 Rg5 Ng1 Re7 Rg7 Rd5 Ne5 Rf7 Ng4 Qh4 Ke4 f3 Bb5 Qg3 Nh2 Ba8 Bc4 Rff5 Bb3 Rg5 Bg2 f1R Bd1 f2 Bh3 Qd6 Kf3 Rge5 Bg2 Rd4+ Kg3 Be4 Bh3 Qh6 Bg2 Rf5 Re1 Rf7 Re2 Re1 Bh3 f1R Bg2 R1f6 Bf1 Re8 d8N Nf2 Nb7 Red8 Na5 R4d7 Bb3 Rb1 Bd1 Rbb2 Nc4 Rb3 Ba5 Rb5 Bb4 Qg5+ Ng4 Bc6 Na3 Ng2 Ree8 Ne3 Nc4 Qh6 Nh2 Be4 Bf3 Qg5+ Bg4 Qf5 Bd1 Qf4#
QrnR1n2/B1bR3b/3n2k1/1BN3r1/r1P1N2P/pbK2R2/1P2b3/3q1NqB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 h4 Kf7 c4 g5 e4 a5 h6 d5 b6 d3 b7 a4 e5 a3 e6+ Kg6 h7 d4 e7 f3 Ne2 f2 Qc2 g4 Ra2 g3 Qb3 g2 Qc2 g1Q Bh3 f1R Bg2 f4 Qb3 f3 Rh3 f2 Ng3 Bf5 Bc6 Ra4 Nh1 Nd7 b8N Bg7 Bb5 Be5 Ra1 Bc7 Ng3 Nf8 Nd7 Re1 Bc6 f1B Nc5 Re5 Nc3 Be2 Qb8 Be4 Nf1 Rg5 Rf3 Qd7 Rf7 Qd8 e8B Ne7 Qa8 Nc8 Rf5+ Kg7 Na2 Ne7 Qa7 Nfg6 Na6 Qd5 Bed7 Rb8 h8R Nc8 Rd8 Nf8 Qa8 Qd6 Rf4 Bh7 Bh1 Kg6 Rf3 Qd5 Ke1 Qd6 Be3 Qd5 Kd2 Qd6 Kc1 d2+ Kc2 d1N Nc3 Nf2 Bb5 Ne4 Rd1 d3+ Kb3 d2 Ba7 Qd5 Nc5 Qd6 Rc1 d1B+ Rc2 Ng3 N3e4 Nf5 Kc3 Qd5 Rd2 Bb3 Rc2 Qd1 Rcd2 Ng7 R2d5 Nf5 R5d7 Nfd6
1q1b1q2/N2nN1R1/4BN2/1P1qQ1p1/2P3R1/b2nbKB1/PR1rr3/1nBb2k1 w - - 0 1 illegal: No proof kernel
R3qB1K/5rr1/2q2nB1/P1Qp1Nb1/2b4n/2brNRP1/kP1N2n1/4RnB1 w - - 0 1 illegal: No proof kernel
1rNNk3/3qn3/3P1q2/2r1qpq1/3BQ2P/PB4bn/RR2RN2/1KBrnb2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 g5 e4 b5 d4 c5 Kd2 f3 Kc2 g4 e5 b3+ Kb2 b4 e6 g3 h6 f2 d6 g2 a3 c4 e7 Na6 d5 Rb8 h7 Qd7 Bg5 c3+ Kc1 b2+ Kc2 b3+ Kd3 c2 Nh3 g1N Nd2 b1Q Rh2 c1Q+ Qc2 b2 Ra2 Qa1 Nc4 b1R Nb6 Qe5 Rg2 Bb7 Nc8 f5 Be2 f1Q Nf2 Nh3 Qa4 Qfe1 Qe4 Qf6 Bd1 Qce3+ Kc2 Nc5 Rb2 Nd3 Bf4 Qg3 Bc1 Qgg5 Ra2 Rb5 Rb2 Qec3+ Kb1 Ne1 Bb3 Ba6 Rh2 Qce5 Rg2 Kf7 e8R Ne7 Ra2 Rg8 h8B Rc5 Rb2 Bf1 Ra2 Qde6 d7 Bh6 d6 Rg7 Rg8 Rg6 Rg7+ Kf8 d8N Ke8 Rh7 Qd7 Rf7 Qgf4 Rh2 Rg1 Rg7 Qe3 Rgg2 Bf4 Re2 Bg3 Rb2 Qfg5 Bg7 Q5c3 Bd4 Rh1 Ng4 Qef4 Rge2 Qe5 Ra2 Rg1 Reb2 Qef6 Rhe2 Qce3 Nf2 Rh1 Qc2 Qee5 Qe4 Nd3 Ne6 Bg2 Nd8 Rd1 Bd5 Ne1 Bb3 Bf1
1q1R4/2Bn1qrb/PB1Rn3/nBR2r1n/7p/P1P2b2/Kb1Nr1N1/Q4Nk1 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 h4 gxh4 d4 cxd4 Kd2 Kf7 f4 Kf6 g4 b5 c3 h5 Kc2 e5 Kb2 d5 a6 d3 Qa4 d4 Qc2 h3 Bd2 b4 Bg2 h2 Be4 h4 Na3 b3 Bc6 e4 Ne2 e3 Ba4 Qd5 Rae1 Ra7 Be8 Nh6 Bh5 Qf7 Qb1 Nd7 Bc1 d2 Qa1 d1B Nb1 d3 Ng3 d2 Nf1 Bf3 a3 e2 Rg1 h1N Rd1 e1R Bg6 Re2 g5+ Ke7 f6+ Kd6 f5 Ke5 Bh5 Ke4 g6 Ng3 g7 Rb7 Bg4 Nh5 g8R Rh7 Bh3 Rg7 Rg5 Rb5 Rh8 Bd6 Rd8 Bf4 Bg2 Kd3 Bh1 Bcb7 Bg2 Bbe4 Bh3 Qf8 f7 Be3 f6 Nf5 Bg4 Nd4 Rc5 Bh7 Be6 Qg8 f8B Qf7 Bd6 Ke4 Bc4 Ne6 Bc7 Bh6 Ng3+ Ke3 Nf1+ Kf2 Bd3 Ra5 Bb5 Kg1 Bb6 Ra4 Bc7 Rf4 Bb6 Rf5 Bc7 Qe8 f7 Bg5 f8N Qf7 Ng6 Bh6 Re1 d1Q+ Nbd2 Bg5 Kb1 b2 Nf4 Qb3 Bb6 Qb4 Ka2 b1N Ng2 Qf4 Kb3 Qb8 Rd1 Bh6 Nc4 Bf4 Rd6 Nd2+ Ka2 Nb3+ Bd2 Na5 Bc7 Re4 Bb6 Bh6 Bf4 Ree5 Bg3 Bc1 Ncd2 Re3 Rdd5 Re4 Bgc7 Re2 Rd6 Bb2
1b2RN2/nB1q4/P2BBr2/p2bn1kP/RQ2nqbR/1P4q1/2r1N1K1/2Nq4 w - - 0 1 illegal: No proof kernel
6b1/5Rrn/p1P2n2/RQb1B1kq/qqP5/1NBPn3/1R3Knr/N2r2NB w - - 0 1 illegal: No proof kernel
3KB1kN/2qR2P1/1R1Rp1qn/2nN1BBq/r1N5/PQP5/r2b4/3r1bqn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 h5 Kc4 d5+ Kc5 b5 f4 b3 g4 d3 g6+ Kg7 f6+ Kh6 g7 Kh7 f5 d2 c3 b2 g5 h4 a3 h3 g6+ Kh6 f7 b4 f6 d4 Qb3 h2 Bh3 d3 Bf5 Nd7+ Kc6 e6 Nh3 Ba6 Nf4 d1Q Nd2 b1Q Nd5 Nc5 Nc4+ d2 Rg1 Qbc2 Rb1 Qh5 Rd1 h1N Rb2 Bd6 f8R Bf4 f7 Qb8 Rd8 Qd3 Qa2 b3 f8N Qe5 Rb1 b2 Qb3 Qf1 Kb6 Qg1 Rd7 Bb5 Rd6 Ra4 Kc7 Ba6 Kd8 Be3 Rf1 d1R Rf4 Bd2 Rd4 Nf6 g8B Kg7 Bf7 Ng4 Be8 Nh6 Rd3 Kg8 g7 Bb5 Ng6 Rh7 Ra1 b1Q Nh8 Qc2 Rb1 Qeg3 Ncb6 Bc4 Rd4 Bf1 Nc4 Qe5 Qa2 Qd3 Rbb6 Qdg3 Qb3 Qgg6 Rd7 Qd6 Nde3 Qc6 R4d6 Qb7 Nd5 Qc7+ Ke7 Be1 Be3 Bd2 Bg5 Bf4 Bc2 Ng4 Qa2 Qhh2 Rdc6 Rh4 Rd6 Nh6 Bf5 Qe2 Na5 Qeh5 Nc4 Rh2 Qb1 Ra2 Qb3 Qa7 Kd8 Bd2 Be7 Qb7 Bg5 Qc7+
k2Bbq1b/qrb1q1P1/n1PN4/5p2/2PN2r1/1N1R1BR1/n1Q2n2/2bBKR2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 dxc5 exf4 e4 h5 c4 a5 g4 d5 b4 Kd7 b5 Kc7 b6+ Kb7 e5 d4 e6 a3 g6 f3 g7 a2 e7 a4 e8N a3 g5 h4 g6 d3 Nc3 h3 Nb1 f2+ Kd2 h2 Bh3 f1Q Qe2 Ne7 g8B Bd7 Qg2+ Nec6 Ng7 Ra7 Qe2 Be8 Bc8+ Ka8 Nf5 Rh4 Nf3 Qe7 Nd6 Na6 Bg4 Rb7 Rg1 h1N Rg3 Nf2 Nd4 Ncb4 c6 f5 Bf3 Qg1 Bgd5 Rg4 Qd1 Bg7 Qc2 Be5 Bd1 Bh8 g7 Qf8 Ke3 d2 Kf3 Qe1 Kg2 Qe3 Kf1 Qee7 B5f3 Qg8 Nc3 Qgf8 Rb1 a1B Ncb5 a2 Nb3 Be5 N5d4 a1B Bb2 Na2 Rc1 Rb8 b7+ Ka7 Bc3 Bb2 Ba5 Ba3 Ra1 Bc1 Bc7 Rd8 b8R Rd7 Rb7+ Ka8 Bd8 Bf4 Rb5 Rb7 Rd5 Be5 Ne6 Bf4 Rd3 Be5 Ned4 Bf4 Nf7 Bc7 Nd6 Ba5 Bde2 Bb2 N4b5 Bc7 Rd1 Bc1 Re1 Qe3 Rd1 Qa7 Re1 d1Q N5d4 Qd2 Bd1 Qf4 Ke2 Qh6 Rf1 Qg5 Ke1 Qge7+
2R1B2b/2pRK3/2r1B1bQ/R1N2P2/rk3bNq/1r4Bq/b1PP4/2n1qN1n w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 f5 hxg5 fxg4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 a5 f4 e5+ Kc4 g3 g6 g2 b6 h4 b5 h3 b7 e3 b6 a4 g7 h2 Ra3 e4 Qh5 e2 Qh6+ Be6+ Kb4 e1R Kb5 e3 Qh5 e2 Qg5 Ba2 Rh3 a3 Rh6+ Nf6 g8B Qc8 Be6 Na6 b8N Nb4 b7 Ne4 Nc3 Nd3 Nd1 Ng3 Bb2 Ra4 Ne3 Nc1 Rh7 Bh6 Nf3 g1Q Nd7 Qf2 Rg1 h1B b8R Qh2 Nfe5 Qh5 N5g4 Be4 Nc5 Bg6 f5 Nh1 Qh4 Bf4 Re7 Qf8 Rc8 Qfh6 Bg2 Rf1 Bc6 e1Q Be8 Rf3 Nf1 Rf8 Bd4 Rf6 Bf2 Rc3 Qg5 Qh3 Bg3 Q6h5 Qh6 Rf3 B6d7 Kd5 Rg7 Rc6 Be6+ Kd6 Rg2 Rc3 Re2 Rd3 Re4 Rb3+ Rb4 Bb1 Rh7 a2 Rg7 a1B Kc4 Ra7 Rb5 Ba2 Rf7 Bh8 Ra5 Rca6 Rd7+ Kc6 Ra3 Kb6 Kd5 Kb5 Ra4 Rc6 Ra5+ Kb4 Qg7 Be3 Ke5 Bh6+ Kf6 Bf4 Ke7 Ra8 Qh6 Raa6 Ne4 Ra7 Rad5 Raa3 Ra5 Ra4 Nc5 Q5h4+
7q/1q2K2p/kq3B1P/n4PQ1/Rrq3r1/NR4P1/1N2Bb2/nN1bRqqB w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 c5 d4 cxd4 f4 f5 exf5 gxf4 Ke2 e5 Kf3 a5 Ke4 d5+ Kd3 Kd7 c4 Kc7 h4 Kb7 b4 e4+ Ke2 e3 Kf3 e2 Kg4 e1Q c5 a4 h5 f3 b6 a3 b5 a2 h6 f2 g3 d3 Rh3 d4 Bd2 Be6 Na3 Ra4 Bc3 d2 Be2 f1Q Qc1 d1Q Rh1 Qd3 Qg5 Qeb1 Nf3 Nc6 Nd2 Nf6+ Kh4 Qb4 Ndb1 Nd5 Kg4 Na5 c6+ Ka8 b7+ Ka7 b8R Bc5 c7 Rg8 c8B Qb6 Kh5 Qdc4 Bb7 d3 Bf6 d2 Rg1 Ne3 Bh1 Bd4 Kh4 Qb7 b6+ Ka6 Kh5 d1Q Kh4 Qfg2 Re1 Nc2 Kg4 Qdd3 Kf4 Bf2+ Ke5 Qa7 b7 Qab6 Rc8 Qg1 b8N+ Ka7 Nc6+ Ka6 Rb8 Qf3 Qd2 Rg4 Qg5 Qfg2 Rb7 Q2f1 Rb8 Qb4b5+ Kd6 Rb4 Ke7 Qbd5 Ne5 Qdb7+ Kf8 Bd7 Nd3 Ba4 Nb2 Nd4 Re8 Bd1 Re3 Nc2 Rb3 Qf3 Nc3 Qd5 Ke7 Qdb5 Rc1 a1Q Ncb1 Qbd5 Nd3 Qac3 Nb2 Na1 Rc2 Qcd4 Rd2 Qc3 Rd4 Qdb7+ Kf8 Q4d3 Bd8 Rb5 Ra4 Rbb4 Be7 Qh8+ Kf7 Qbb8 Bf6 Qc4+ Ke7 Q8b7+
R1n1B3/2pB1N1n/1b2Pn2/3R2Pn/1r1R3B/q2b1qr1/1P4nN/KNkn1Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Ke7 Kd2 Kd6 Kc2 Kd5 g4 Ke4 g6 h5 g5 f5 d5 a5 e3 a4 b6 a3 d6 c3 d7 h4 b7 f3 g7 a2 Bc4 h3 Ne2 f4 Bf7 f2 Bb3 f1N Bd2 h2 Na3 f3 Nc4 f2 Rc1 a1Q Ba4 Qf6 d8R Bf5 Nf4 Rh3 Ne5 Rg3 Bb5 Nd7 b8N Ra4 Be1 Bc5 Ba6 Nd2 Nd5 f1N Nf3 Nf8 Bb5 Rb4 Nc6 Bb6 Ra8 Nh7 Nd8 Qa3 Be8 Nc4 Kb1 Nd6 Nf7 Nc8 Qe2 Qc6 Rd1 Ngf6 g8B Bg6 Rg1 h1N Nh2 Nf2 Rd2 Nd1 Rd4+ Kf5 Rg2 Qb7 Qc4 Qc6 Rgd2 c2+ Kc1 Qb7 Nc3 Qf3 e4+ Kf4 e5+ Ke3 Nb1 Bd3 e6 Rg2 Rd5 Ng3 Bd7 Ngh5 Bh4 Rg3 Qb5 Be4 R2d4 Bd3 Qa6 Kf2 Kd2 c1N Qc4 Ne2 Qb5 Bc4 Kc2 Ke3 Qa6 Nef4 Qb5 Ba2 Qf1 Ng2 Kc1 Bc4 Kc2 Nf8 Bh7 Bb5 Bd3 Ba6 B3b5 N8h7 Bbc6 Bb5 Be8 Ba6 Bcd7 Bd3+ Kc1 Bc4 Nc3 Ba6 Kb1 Bb5 Na2 Bd3+ Ka1 Qb3 Nc3 Kd2 Nb1+ Kc1 Bc6 Qc3 Bcd7 Qa3+
4b1n1/1PNQBrP1/2P2r2/2RKb1k1/r5N1/R1qB2bp/r1nr4/1N1bR2B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 d5 e4 a5 b4 f5 c4 h5 g4 a4 g6 Kf6 b6 d3 b5 h4 c5 h3 c6 d4 e5+ Kg5 e6 a3 e7 d2 e8B a2 b7 d3 b6 Bd6 g7 Qf6 Bf7 Na6 b8R Rh4 Ne2 Bd7 Bd5 Qc3 Nd4 Be8 Nb5 Nb4 Ba3 Nc2 Nc7 Ra4 b7 Rh6 Rg1 Rf6 Ra8 Be5 Be7 Bd6 Qc1 d1R Ra5 d2+ Bd3 Be5 Rc5 Bd6 Kf2 f3 Re1 f4 Qb2 Be5 Qb4 Bd6 Qd4 Be5 Qe4 Bd6 Qe6 Be5 Qd7 Bd6 Kf1 f2 Ke2 f1R B5e4+ Be5 Bh1 Rg1 Kf3 Rg2 Rc4 Rh2 Ke4 f3 Kd5 f2 Rc5 f1R Bf5 Kh4 g5 Bg3 g6 Kg5 Bd3 Rff2 Re6 Rdf1 Re3 d1B Re1 Nh6 g8N Rd2 g7 Rf3 Bf8 Rf7 Nf6 Ng8 Ng4 R3f6 Be7 Rhg2 Na3 Rge2 Rc1 a1B Nb1 Ra2 Ra5 Re4 Ra3 Ra4 Re4 Qb4 Re3 Bae5 Re1 Na1 Rc4 Qc3 Rc5 Nc2
n4N1r/R1n4B/4b2q/1K1n2rp/1RNbPPBP/2k2r1n/2bRB3/2Qr2N1 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 f5 g4 fxg4 Be3 Kf7 Bd4 exd4 Bg2 Ke7 Bf1 Ke8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 h4 h5 e4 d5+ Kb4 a5+ Ka4 g5 b4 g3 c4 g4 b6 g2 b7 d3 f4+ Kd4 c6 d2 c5 g3 b5 Bg7 b6 Qf6 c7 Na6 b8R Ne7 c6 Be6 c8B Qh6 b7 Nc7 Qg4 d1B+ Ka3 a4 Kb4 a3 Rh3 a2 Rh2 Ra3 Nd2 Rf3 Be2 Bc2 Bd3 Na8 Kb5 Kc3 c7 d4 Qh3 Nd5 Be2 d3 Nc4 d2 Bd7 d1N c8B Bd4 Be8 Qf8 Bg6 Qh6 Bh7 N1e3 Qf5 Nf1 Qf8 Nfe3 Qc5 Ndc7+ Kc6 Na6 Kb5 Nd5 Qc6 Bg8 Bg4 Be6 Rd1 a1R Rd2 Nab6 Ra8 Rd1 Ra7 Na8 b8N N6c7+ Ka5 Rc8 Nd7 Rg8 Nf8 Rh8 Nh3 g1R Rf2 Rh1 Ng1 g2 Qc5 Bd3 Rb2 Bc2 Rb4 Rh2 Bf1 Rhh3 Rd2 Rhg3 Be2 Rd3 Nf3 g1N Qc6 Nh3 Ng1 Ne8 Kb5 Rdf3 Qa6 Rg2 Qa2 Rgg3 Qb1 Rg2 Qc1 Rgg3 Bgf5 Rg5 Bg4 Nec7+
1N6/K2Rr1qB/b2PP2p/1B3Q2/NP2nr1R/5k1r/1bbn1r2/B1R2Nbn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 g4 Ke5 d4+ Ke4 b6 a5 d6 c5 e3 f5 d5 f3 d7 c4 g5 h3 g6 c3 b7 h2 g7 c2 Be2 a4 Ba3 c1R Nh3 f4 Qg1 Rc4 Qg5 Nf6 g8B Nc6 b8R Ba6 Ng1 Ra7 Rb7 Ne5 Bb2 Bc5 d6 Qe7 d8N a3 Rd7 a2 Nc6 Qg7 Nb8 Rd4 Bb5 Nc4 Ne2 Nd2 Rd8 Re7 Rd7 h6 Rc1 Rd5 Qg4 Rh5 Be5 Rh3 Bh7+ Kd5 Qg6 Rf8 Ng3 Rff7 Qf5 h1N+ Ke1 f2+ Ke2 f1R Kd3 Rf2 Nf1 f3 Rc4 Bb6 Rh4 Nc4 Kc3 Ne4+ Kb3 Ba7 Ka4 Ncd2 Ka5 Bc5 Qh5 Rf4 Nc3+ Ke6 Re1 a1B Na4 Kd5 Rc1 Bb2 Qg4 Ba3 Ba1 Bb2 Qg6 Ke5 Bc6 Bd3 Bb5 Bc2 Ka6 Rg2 Ng3 f2 Kb7 f1B Qf6+ Kd5 Qf5+ Qe5 Ka6 Rgf2 Kb7 Bfd3 Nf1 Nf6 Rh5 R2f3 e4+ Kd4 Bc6 Ba6+ Ka8 Kd3 Rh4 Bg1 Bb5+ Kd4 Qe6 Rf2 Ka7 Qg5 e5 Qg7 Qf5 Nfe4 Bc6 Kd3 e6 Ke2 Bb5+ Kf3
1R1Br1N1/nb4rN/2P4r/1k1pn3/1qb1bR2/K1P2RB1/1Q2BNP1/n1b1n3 w - - 0 1 illegal: No possible last move, all moves rejected
b1B4R/2B2R2/1n1bN3/B1NQq3/3rpnP1/1P1qkPR1/r1n2N1K/n5bb w - - 0 1 illegal: No possible last move, all moves rejected
1nQrR1bn/1BN2q2/1R3Nn1/5n2/BPqkrpKN/P1b3q1/1B4RP/1q6 w - - 0 1 illegal: No proof kernel
BRb2qN1/r4R2/kq3r1P/4K1pQ/3NPR2/Pnrn2b1/3Bn3/2Bn2Nr w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 f5 d4 c5 e4 Kc7 h4 Kb6 d6 g5 h6 b3 d5 c4 h5 b2 a3 c3 h7 c2 d7 Bd6 h6 Ra7 Bg2 Ka6 Qe1 b5 Rh5 b4 Qd1 b3 Be3 c1N Nc3 b1R Bh3 b2 Nb5 Ne7 Bd2 Nbc6 Nd4 Qb6 d8R Ng6 Rh4 Nb3 Re8 Bc7 d6 Nb4 d7 Nd3 d8N Rf8 h8B Rc1 Rb1 Rc3 Re7 Rf6 Rf7 Bd6 Ke2 f3+ Ke3 f2 Qh5 f1Q Nc6 Bg3 Ne7 Ngf4 Ng8 Ne2 Bc1 Na5 Rf4 Nb3 Ra1 b1N Ra2 Rc5 Rb2 Nbc3 Bg7 Na4 Bf8 Rc3 Rb1 Nab2 Bb4 Rc4 Be1 Rc3 Bed2 Qa5 Rg4 Nef4 Ngf3 Rb6 Rf6 Nbc5 Nb5 Nd1+ Kd4 Ne2+ Kd5 f4 Nbd4 Re6 Rb8 Qb6 Rh4 Rc6 Bd7 Nb3 Rf5 Re6 Bc6 Qf2 Ba8 Rec6 Ng1 f3 Nh3 Qf1 Rf6 f2 Rf8 Qh1 Rg4 Qf3 Rh4 Qf6 Rf4 Qg7 R8f5 f1R Rf7 Rh1 Ng1 Rg6 Rf2 Qf8 R2f4 Nb4+ Ke5 Rd6 Nc6 Rf6 Nd4 Nd3+
1r3n1R/2B4P/1PBrN3/2qbq2R/N1kB1n1R/2pbP2N/3rQ2b/r2b1K2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Ke7 b4 Kd6 h4 g5 h5 f5 h6 c5 h7 a5 b6 f3 b5 c4 b7 f2+ Kd2 g3 b6 a4 Rh5 g4 Ke3 c3 Kd3 g2 Rh3 g3 Qc2 f4 Be3 a3 Qa4 f3 Rh6+ Nf6 Qa7 a2 Rh2 Bg4 Rh4 Qe7 Na3 Qe5 Qa6 Nbd7 b8R Nh5 Nh3 g1Q Bg2 f1B Qb5 f2 Nc4+ Ke7 d6+ Ke6 Be4 Bg2 Nb2 f1B Bc6 Bd5 Na4 g2 Re1 a1R Qb2 Ndf6 d7 Bd6 d8B Nd7 Bc7 Rd8 Qc2 Ra2 Rb1 Nf8 Rb5 Rd7 Rc8 Rb8 Rc5 Ng6 Rh8 Nf8 Qb2 Qg5 Qb5 Bh2 Qc4 Rd6 Qa6 Bb3 d5+ Ke5 Bf2 Nf4+ Ke3 Be6 Kf3 Rd2 Bd4+ Kf5 Qc4 Bd1 Ra5 Qf6 Qa6 Qe5 Rb5 Qh1 Kf2 Ke4 Ke1 g1R e3 Kd3 Ra5+ Kc2 Qe2 Kb3 Rc5 Qhe4 Kf2 Q4f5 Ke1 Rdd8 d6 Bd5 d7 Qg5 Kf2 Qge7 Ra5 Qc5 Ke1 Rg6 Kf2 Rd6 Ke1 Re8 d8N Ra8 Ne6 Reb8 Qg2 Bfc4 Qe2 Bd3 Kf1 Kc4 Rh6 Qa3 Ke1 Bf3 Kf1 Qf5 Rh4 Ra6 Re5 Bd5 Nac5 Qe4 Reh5 Qe5 Nhg5 Qb4 Nh3 Ra1 Na4 Qc5
5N1R/3q2PB/p1q1bq2/Rr1b3q/1nb1N1Pr/3kB1R1/nQ1P1B1b/3K1N2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 e4 Kd7 g4 Kd6 b4 Ke5 b6 Kd4 b7 c5 g6 f5 g7 h5 b5 h4 b6 h3 e5 f3 e6 f2+ Ke2 c3 e7 c2 e8R h2 Ra3 f4 Ra5 c4 Bh3 f1B+ Ke1 c3 Re7 a6 Rg5 f3 Bg2 Bc4 Rc7 Ne7 Ra5 Nd5 Ne2+ Kd3 Ba3 c1Q Ng3 c2 Bc5 Be6 Be3 Bd6 Nf1 Qd7 Nc3 Rh4 Ne4 Nc6 b8B Ndb4 b7 Na2 Bba7 Ncb4 b8N Qa1 Rb7 Qf6 Qb1 Bcd5 Qb2 Bc7 Rg1 h1Q Bf2 Be5 Bae3 Bh2 Rc7 Ra7 Rc8 Rb7 Rf8 Rb5 Rh8 Qdd8 Nd7 Qde7 Nf8 Qd7 Nc3 c1Q+ Nd1 Qcc6 Nc3 Bc7 Kd1 Qh2 Bh1 Qhe5 Rg3 Qh5 Bg1 f2 Be4+ Kc4 Bg6 Bf4 Ne4 Kd3 Bh7 Bd6 Nh2 f1B Bgf2 Bg2 Rf3 Bc4 Nf1 Bh2 Rg3 Bf5 Ng5 Bgd5 Ne4 Bfe6
4N2k/2bqp2B/3qB3/R1B1RPqn/qrP1N1rN/1n1K2Pn/1R4b1/Q2n4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 Kg7 c4 d5 b4 h5 b6 a5 b5 d3 g3 d4 b7 e3+ Ke1 e2 Kd2 h4 f5 h3 g6 a4 b6 a3 Ra2 h2 Qa4 Qd7 Nc3 Rh4 Nd1 Nc6 b8N Rg4 b7 Nf6 Nh3 Kh8 Qb3 Ra4 Ng5 Bg7 Bg2 Rb4 Nf2 Nh5 Qb1 Be5 Nfe4 Bc7 Re1 h1N Nf3 Nf2 Na6 Nh3 b8R Qd6 Rb6 Bb7 Qa1 Qd7 Rb2 a2 Rb5 Ba8 Nh4 Bb7 Qb1 a1Q Ra5 Qa4 Qa1 Ba8 Rb1 Bb7 Ba3 Ba8 Rb2 Bb7 Kc1 d2+ Kb1 d1N g7+ Kg8 Kc1 d3 Kd2 Nd4 Bf3 Kh7 g8B+ Kh8 Bh7 Bc6 Nec5 Qd6 Bd5 Bb7 Be6 Bg2 Ne4 Qad7 Nf6 Qa4 Ne8 Qad7 Kc1 d2+ Kb1 Qa4 Nc5 Qad7 Ne4 Qa4 Rf1 e1Q Rf3 Qf2 Re3 Qff4 Re1 Qg5 Re2 Nb3 Kc2 Nd4+ Kd3 Ne3 Re5 d1Q+ Red2 Qad7 Ra2 Q1a4 Rdb2 Rb8 Bb4 Nd1 Bc5 Rb4 Ra3 Qac6 Ra7 Qa4 Ra5 Nb3+
2N2N2/1qrq3Q/R1rn2PK/B1N3pB/2q1qqq1/1P1q2PR/n3bkB1/2R5 w - - 0 1 illegal: No extended proof kernel
1q5k/qn2n3/4Q3/1p1r3r/1P1K3b/2rBBNRP/2NRN1pP/b1Bb1q1R w - - 0 1 legal: proof: c4 a5 b4 e5 f4 exf4 Kf2 d5 cxd5 h5 Qb3 h4 Ke1 h3 gxh3 a4 Ba3 axb3 Bb2 Bg4 Bc1 Bc8 Kf2 c5 d4 f5 a4 Kf7 e4 b5 a5 g5 d6 Kg7 e5 g4 e6 c4 e7 c3 e8R g3+ Kf3 g2 d7 b2 d5 c2 d6 Nc6 a6 Be7 a7 Na5 Ra4 Rh5 Bd2 c1B Nc3 b1R Ne4 Bb2 Ng5 Kh8 Ra2 Nb7 Bd3 Ba1 Bc1 Rb3 Rd2 Rc3 Kf2 f3 Ke3 Qa5 d8B f2 d7 f4+ Ke4 f3 Bb6 Qa4 d8N Bg4 Nc6 Rc8 a8Q Qa5 Qb8 Qa7 Be3 Rc7 Nd4 R7c5 Qd6 Bf6 Re5 Ne7 Nge6 Bh4 Nc2 f1Q Qa6 f2 Nf4 Bd1 Rg5 Qe1 Nf3 f1Q Ne2 Qef2 Qe6 Qg3 Kd4 Qgb8 Rg3 Rcd5+
rq4n1/6Pq/r1B4Q/1RB2b2/1N1Kn3/kP1b1pp1/5PBn/N1q1RNrR w - - 0 1 illegal: No proof kernel
1R2nQnb/1b1k1p2/1b2r3/1P2r3/N6P/BNPN3B/4RBKp/1qrRqn2 w - - 0 1 illegal: No proof kernel
KNk5/1rq1P1p1/1rbrR3/qPP1Q3/3n1BNn/1BBNR1p1/1q5b/R5b1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 d5 h4 Kd7 b4 a5 e4 f5 c4 d3 Ke3 a4 Kd4 g3 b6 d2 b5 f4 h5 a3 c5 f3 b7 f2 e6+ Kc7 h6 a2 e7 Ra6 e8R Be7 h7 Rb6 e5 Bg5 e6 Nh6 Ne2 Bd7 Nf4 Bc6 Qe1 d1Q+ Nd2 Qa4+ Nc4 Qb4 Bd2 Nf5+ Ke5 d4 Na5 d3 Rh6 Qb2+ Bc3 d2 Bc4 d1R Bb3 f1Q Nd3 Be3 Rf6 Rg8 h8N Nh4 Nf7 Bg1 Nh6 Bh2 Ng4 Qe7 Qe2 Qe1 Rf3 Rf8 Re3 Rf7 Kd4 Bd7 Ke5 Nc6+ Kd5 Nd4 Nc6 Qd8 b8B+ Kc8 Bd6 Rd2 Re7 Qc7 Bf4 Qeb1 Nb8 Bc6+ Kc4 Qe1 Kb4 Rd1 Ka5 Qed2 Rd7 Re7 Rd6 Rd7 e7 Qe1 Rc1 a1B Rde6 Rd6 Rb1 Rb7+ Ka6 Qed2 Bg5 Rf1 Re1 Rf6 Bf4 Rh6 Bc2 Qb4 Bb3 Bb2 Ra1 Bc1 Rf3 Qb2 Qe4 Be3 Qe5 Beg1 Re3 Qd8 Bc4 Rb6+ Ka7 Rb7+ Ka8 Qc7 Qf6 Bh1 Bb3 Rdb6 R6e5 Bc6 Qg5 Rd6 Re6 Qd7 Qf5 Qc7 Qe5 Qa5+
4N1R1/1NrRp2q/q6P/RPbB3Q/r1b3np/6bP/Bq3n2/N2kB1Kr w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Na3 h5 Nb1 h4 Ra6 Qb6 Ra5 Qh6 Ra1 Qh5 gxh5 Rh6 Kd2 Rh7 Ke1 Rh8 f4 Kf7 Kf2 Kf6 c4 Kf5 b4 g5 h6 a5 h3 d5 c5 e3+ Kg2 Ke4 b6 g4 f5 g3 c6 a4 b7 a3 b5 a2 f6 d3 f7 d2 c7 e2 Ba3 Ke3 Bd6 e1R Na3 d4 Rh2 d3 Be2 Nd7 b8R Ne5 Qb1 d1Q Nf3 d2 Qf5 Nd3 Qh5 Bg7 f8N Nf6 Nd4 Qc2 Bf3 d1Q+ Ne2 Kd2 Nc1 Ra4 Bb7 Rh1 Nh7 Ng4 Nf6 Ndf2 Nd3 Qdb1 Ne8 Kd1 Nc5 Be5 Bd5 Be6 c8B Qb2 Nb7 Bf7 Bce6 Bf4 Ng7 Rc8 Bb4 Rc7 Rg8 Be5 Be1 Bf4 Kf3 g2 Ne8 g1B Kg2 Bd6 Kf1 Bg3 Rg2 Rh2 Nc2 Nh1 Re2 Bc5 Re4 Nf2 Kg1 Bg6 Rf4 Bd3 Bf7 Be2 Rf6 Bc4 Rd6 Qg7 Rd8 Qh7 Rd7 Qc1 Rb1 a1Q Rb3 Qab1 Na1 Qcb2 Ra3 Qbg6 Ra2 Qa6 Ra3 Rb4 Ra5 Ra4 Bfe6 Be2 Ba2+ Bd3 Bed5 Be2 Nc2 Bc4 Na1 Rh1+
BN1Rr3/1rP3nQ/r1p2K1P/Bn1R4/1p1R2qb/nNq2N1k/bPB5/1q6 w - - 0 1 illegal: No proof kernel
3B1r2/kbp1b1q1/3n1nbR/1rK2B1R/P1N3r1/2P3N1/p5Pq/2Q1RBNn w - - 0 1 illegal: No proof kernel
1nB1R1b1/1P1RpQ2/2Nrr2B/1NB5/2nKnN2/3Rp1Pr/P6b/1kqb2q1 w - - 0 1 illegal: No possible last move
Qq1BNRN1/1pp2r1n/B1RP1n1b/1rPq2k1/1N4B1/1K6/1b3nP1/q3R2r w - - 0 1 legal: proof: f4 d5 b4 g5 fxg5 a5 e4 axb4 h3 Bg4 hxg4 dxe4 d4 h5 Kd2 f5 a4 Kf7 c4 Kg6 Kc2 e5 d5 e3 a5 e2 a6 e1Q c5 e4 a7 f4 d6 e3 Qd5 f3 Na3 f2 Nf3 e2 Nh2 h4 Kb3 h3 Nc2 Qd1 Ra6 e1B Rc6 Bc3 Ba6 Bb2 Re1 Nf6 Qg8+ Bg7 Be3 f1Q Bd4 Nh7 Bf6 Qc8 Bd8 Nd7 Qf8 Rb8 a8R Ndf6 Qg8 Qd4 Qf8 Bh6 Qe8+ Kg7 g6 Rf8 g5 Rf7 Ng4 h2 Rb1 h1N Re1 Nh5 Nf6 Nf2 Ka4 b3+ Nb4 Ba1 Ka3 b2 Kb3 Qe4 Qe5 b1R+ Qb2 Rd1 Qa2 Bb2 Qa3 Rb1 Ne8+ Kg8 g7 N5f6 Be2 Qe5 Bh5 Qd4 Qa7 Qa6 Bg4 Qa1 Qa3 Rd7 Qa7 Kf7 g8B+ Kg6 Bc4 Rf7 Ba6 Qd2 Bge2 Kf5 g6 Kg5 g7 Qd4 g8N Qd5+ Bac4 Qce6 Bd1 Qe7 Bg4 Qf8 Be7 Rd8 Rc8 Rd7 Bd8 Rde7 Qa8 Re3+ Kc2 Rh3 Ba6 Rb3 Na2 Rb5 Nb4 Qe5 Kb3 Rd1 Re2 Rh1 Re1 Qe4 Ne7 Qh8 Ng8 Qd5+ Kc2 Qg7 Be7 Qf5+ Kb3 Qf8 Ng7 Qd8 Rb8 Qdd7 Rf8 Qc8 Bd8 Qb8 Ne8 Qd5+
1r5r/k2b2r1/3PK1n1/b2N3b/nnR2BPR/2pnP1p1/q3B3/2NQR1BN w - - 0 1 illegal: No proof kernel
r1b1R1rk/2PB1KN1/1nRBP2n/3BNQ2/q1p1b2b/1P2b3/2pR4/n4Nr1 w - - 0 1 illegal: No proof kernel
3N1nRb/1prQPr1B/2nKR1r1/r6n/2k2Pbb/p1P1B3/1q4NB/3R2N1 w - - 0 1 illegal: No proof kernel
brkBN2N/q7/bn1Rn2R/5rR1/3nq2P/NPppK1bB/5QP1/2B4n w - - 0 1 illegal: No proof kernel
5q2/N1r1r3/RR3b1B/PpP1Pr1q/2q1r1N1/5p1N/2kn1KQB/1R1b1Bn1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 h4 Ke7 a4 Ke6 e4 b5 c4 f5 a5 d5 c5 g5 h6 g4 h5 g3 h7 d3 h6 d4 Qa4 b3 Qb4 g2 Ba3 b2 Nf3 g1R Nfd2 f4 Rh5 Rg5 Nb3 d2+ Ke2 d1Q+ Kf2 d3 N3d2 Bg7 Rh1 Qf8 Nb3 d2 Nc3 b1Q Ne2 Qa2 Rb1 Nd7 Bc1 Ngf6 Ng1 Ra7 Nh3 Rf5 Qa4 Rg8 h8R Rc7 h7 Qh5 Rh2 Qc2 Qa2 d1R+ Bd2 Re1 Nd4+ Ke7 e6 Qc4 Rg2 Ne5 Rg6 Nf3 e5 Re4 Nc6+ Ke8 e7 Kd7 e8N Ke6 Qb2 Kd5 Na7 Ng1 Qa2 f3 Bf4 Kd4 Bh2 Kc3 Rh6 Be6 Rg6 Nd5 Nf6 Nb6 Ng4 Bf6 Rh6 Rg6 Rg8 Bf7 h8B Rg7 Rg6 Rh7 Bg7 Be6 Bh6 Rhe7 Kg3 Bf7 Qg2 Bd5 Kf2 Kc2 B6f4 Qc3 Bh6 Nc4 R8g7 Nd2 Rf7 Bb3 Rh7 Bh8 Rb6 Bf6 Rg7 Qc4 Rg6 Kc3 Ra6 Bd1 Rb6 Kc2 Ra6 Bg7 Rgb6 Bf6
B6B/1n2RR2/1QqrnRP1/rp1rq1P1/1P3N2/3Brn1N/b1NpK3/4b2k w - - 0 1 illegal: No possible last move, all moves rejected
1K6/2qr2Rb/2qB2P1/p1bn1P2/r1n1N1Bk/RQ1p1qrq/N1NR2P1/B7 w - - 0 1 illegal: No possible last move
1RK1bNrq/4RPn1/1pB1Qnr1/qP1P3R/n3NNp1/3B4/b7/q1k3Bn w - - 0 1 illegal: No proof kernel
4R1b1/kN3p1N/1qR4B/3n1PP1/K1Nrr3/1nBpRrQ1/q5bP/b1r1B3 w - - 0 1 illegal: No proof kernel
nN2r1R1/kq1PB1B1/1RpN4/7P/3b4/nR1Pp2K/q3BQr1/1n1q1bNq w - - 0 1 illegal: No possible last move, all moves rejected
1nb5/1Q1PPqn1/1pb3b1/1r1n2BB/qPBN2p1/2NR1n1k/3K4/N1r2RR1 w - - 0 1 illegal: No possible last move, all moves rejected
1nB1k3/pp1b2R1/4q1nB/1q4qr/3rR1N1/2P1Bbb1/1P1QP2N/NK3Rb1 w - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 d4 cxd4 g4 Qb6 gxh5 Qa6 Bd2 Qxa4 Bc1 Qa2 Kd2 g5 h4 d5 e6 f5 c3 g4 Kc2 g3 h6 f4 e7 f3 h7 f2 h5 g2 h6 Bd7 Nf3 g1B Bh3 f1B Be3 Bg2 Nh2 Bf3 Nd2 d3+ Kc1 d4 Nb3 Qa4 Kb1 Qb5 Ra4 d2 Na1 d3 Re4 Bg7 Qc1 d1Q Bg4 Qdb3 Qd2 Bd4 Bh3 Bf2 Rf1 Qe6 Bg4 Bg3 Bh3 Kf7 e8N Ne7 Nf6 Ng6 Nfg4 Rd8 h8B Ke8 h7 Bb6 Qc2 d2 Bg7 d1Q+ Qc1 Bd4 Bgh6 Qd2 Qd1 Bc5 Qc2 Qd5 Qd2 Qg5 h8R+ Ke7 Bf4 Bg1 Rh7+ Ke8 Rg7 Bc8 Nc2 Rd4 Na1 Bd7 Be3 Nc6 Kc1 Rc8 Kc2 Nb8 Kb1 Rc5 Qd1 Bc6 Ne5 Qgf6 Nc4 Qee7 Qd2 Rh5 Ne5 Qg5 Bc8 Qe6 Neg4 Bd7
RR1nkN1r/7R/p2r2rB/r1r2r2/P1p1B1B1/2nb3P/N2QNq1P/5K1b w - - 0 1 illegal: No possible last move, all moves rejected
3nN1b1/B2pr1br/2rP4/1Bn2pQ1/3R3N/1R1N2r1/1P1Pq3/rRr2KBk w - - 0 1 illegal: No possible last move
R1bB1qr1/5N2/1R1b2r1/1K1b2BN/3pBp1P/P4Q2/1bRP1N2/b2r1qkn w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 b3 exf4 Nf3 b4 Ng1 Nc6 Bg2 Na7 Bf1 Nb5 cxb5 a4 Ba3 axb3 Bb2 Ba6 Bc1 Bc8 h4 Ke7 e4 Ke6 Ke2 Ke5 Kd3 f5 Kc4 c5 b6 g5 b7 d5+ Kb5 g4 b8B+ Bd6 a3 b2 h6 g3 h7 b3 Rh2 f3 Bc7 Kf4 e5 f2 e6 g2 e7 Kg3 e8N f4 Ra2 c4 Qe2 c3 Rh1 c2 Qe7 Nf6 Qe5 Ng4 Nf3 g1B Nc3 b1R Bg2 f1Q+ Qe2 b2 Nd1 Nf2 Ng5 Rg8 h8R Ra6 Ng7 Qf8 Bd8 Ra1 Be4 b1B Bb2 c1B Bbf6 Bb2 Bfe7 Bc2 Nf7 Bb3 Bg5 Rc6 Bb1 Kg2 Nh5 Ra6 Rh3 Rc6 Qd3 Nh1 Nf2 Ra6 Bc2 Rd1 Re3 Rc6 Re6 Ba1 Bb1 Ra6 Rc2 Kh2 Nh3 Bgd4 Nf2 Bdb2 Rg6 d4 Rgh6 Bb4 Rb6 Bd6 Qe2 Kg1 Qd3 Qe1 Qf3 Bbe6 Rc7 Ba2 Be4 Bd5 Rc2 Be7 Rb8 Rag6 Rh6 Bd6 Ra8 R6g7 Rf6 Rg6 Re6 Bb8 Rea6 Bd6 Rb6 Qf1+
qn1rBn2/BPN2p1b/RK1pN1NQ/4RBRn/1q1r1P2/2k3P1/q4r1q/8 w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 cxb5 Bc5 a5 Bb6 axb6 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Nc6 Kd3 Ke7 Kc4 Ke6 Kc5 Ke5 e4 h5 b7 a5 b8N d6+ Kc4 d3 b6 h3 Kb5 Kd4 f4 d2 b7 a4 e5 h2 e6 a3 e7 h4 e8B a2 Qb3 d1R Qh3 Bf5 Na3 Rh6 Na6 Nf6 b8R Nd7 Rc8 Nf8 Nb1 Bh7 Na3 Rd2 Qe6 h3 Bd3 Rh5+ Nc5 Rd5 Qh6 Rf2 Bf5 Qh4 Rb1 a1Q Rb8 Qc3 Rb6 Rd8 Ra6 Nb8 Bb2 Qh5 Re1 Qf3 Bc1 Qd2 Ka5 Qa2 b5 c6 Re5 Qg3 Na4 c5 b6 c4+ Nc5 c3 Bd2 c2 Be3+ Kc3 Nf3 c1Q Rg1 h1Q Nh4 h2 Ng6 Rdd2 Ne6 Qcb1 Bc5 Qe4 Kb5 Qa8 b7 Qd3+ Ka5 Qdc4 Ba7 Rd4 Kb6 Qb4+ Nb5+ Kc4 Rge1 Qg1 R1e3 h1N Rg3 Qh2 Rg4 Ng3 Rg5 Nh5 g3 Qba4 Nbc7 Kc3 Nh8 Q4a3 Ng6 Qb4+
R2r1R1N/1q1pnBP1/1b1Qr1r1/1r1b3k/1p4b1/RNB3PB/1PN3K1/1r3r2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 f5 Nc6 f6 Nb4 Rh6 exf6 Rh4 f5 Rh1 f4 a3 Na6 a4 b4 Be3 Nc7 Bc1 Nb5 axb5 Qa5 Nh3 Qb6 Ng1 Qd8 Kf2 f5 e4 Kf7 c4 Kg6 b6 h5 b7 a5 b8N h4 g3 h3 e5 d3 e6 h2 c5 d2 c6 f3 c7 a4 e7 a3 e8R f4 Bh3 a2 Kf1 f2 Nc6 Ra6 Re3 Bb7 c8B Ne7 Na3 Qb6 Nd4 Bd5 Ngf3 Kh5 g6 Qb7 g7 Re6 Kg2 f1R Nac2 Rhh6 Rd3 Rhg6 Nb3 Rfe1 Rf1 h1R Rf2 R1e5 Re3 Re1 Rc3 R1e4 Ng5+ Re2+ Rf3 Re1 Nf7 Rf5 Rb1 a1R Nh8 Ra8 Ra1 Rb8 Ra8 Rh1 Qe1 d1B Qe5 Be2 Bd2 Rb1 Bc3 Bd1 Kf1 Rfg5 Re3 f3 Qd6 Rge5 Kg1 Rf5 Rf1 f2+ Kh2 Bg4 Rd3 Qa6 Bb7 Rd8 Rf3 Rfe5 Kg2 Qb6 Ba6 Qb7 Bc4 Reg5 Rd1 f1R Rd3 Bc6 Re3 Rb5 Rd3 Re4 Bf7 Re6 Rd4 Bd5 Rc4 Ng8 Rcc8 Be7 Rcb8 Bg5 Ra3 Be3 Rba8 Bb6 Be8 Re4 Rf8 Ne7 Bf7 Re6+
1R1nKbb1/1pn3p1/1R2N1N1/1B1B2B1/1Qnb1b2/bP1R1PP1/3br3/k5qN w - - 0 2 illegal: No proof kernel
K5qn/1p2q1B1/1knPp1N1/bb3R1B/5PNR/bP3n2/rQR2N2/2B1nb2 w - - 0 1 illegal: No proof kernel
rq2bR1B/R3p2N/r1R1n1Q1/p1Pk2qq/4N3/Pq4b1/2KBP1r1/2N1B2r w - - 0 2 legal: proof: d4 f5 c4 h5 b4 c5 dxc5 f4 g4 hxg4 c6 f3 c7 Nh6 c5 Ng8 c6 Na6 Bg2 Nc5 bxc5 fxg2 Kd2 Kf7 h4 Ke6 f4 d5 h5 g5 h6 b5 a3 a5 h7 g3 Kc2 b4 Nh3 g1R Qd3 b3+ Kd2 g2 Rh2 b2 Qc2 g4 Qg6+ Nf6 Ra2 d4 f5+ Kd5 Kc2 g3 Bd2 Ra6 Ng5 Bd7 c8R Ne4 c7 Rh1 f6 g1Q f7 g2 Rh6 Be8 Be1 Bg7 f8B Be5 Nd2 Bg3 Nb3 b1R Nc1 Qh2 Rb2 g1Q Rb6 Qh5 Rc6 Qg2 Ra8 Qb8 c8N Rg8 h8B d3+ Kd1 d2 Kc2 Rh2 Nh7 Ng5 Nd6 Ne6 Ne4 Ra1 Ra7 d1Q+ Kc3 Qa4 Kd2 Qab5 Kc2 Qg1 Bfg7 Rg2 Bgc3 Qe3 Bcd2 Qeg5 Qf7 Q5b7 Rf6 Qb6 Qg6 Rb1 Rf8 Q6b7 Bf2 Qb4 Na2 Rh1 Bfe1 Qb3+ Kc1 Qa8 Rf4 Bd7 Rf6 Qab7 Rf2 Ra8 Rf8 Q3b4 Kd1 Qb8 Nc1 Be8 Kc2 Qb3+
nB3n1B/1p1R1n2/rP1Q4/1kb1R1bn/3p1N1K/P2n1RN1/3P1rN1/1Br3r1 w - - 1 2 illegal: No proof kernel
RN1k2B1/B1b1Nbq1/2R1n3/2qr3r/pb1nPB2/P2p1R2/1NP2p2/K1Q2q2 w - - 0 1 legal: proof: f4 h5 b4 e5 d4 exf4 g4 c5 gxh5 cxd4 Nc3 Na6 Nb1 Nc5 bxc5 d3 Kd2 a5 Kc3 g5 Kb2 d5 h4 f5 e4 b5 a3 f3 h6 a4 c6 b4 h7 f4 h5 d4 h6 g4 c7 b3 Qe1 d2 Qh4 d1Q Rh2 f2 Qg5 f3 Qf6 d3 Nc3 g3 Bd2 g2 Bf4 Be6 c8N Qe7 Nge2 g1B Qg5 Qg7 Nd4 Bb4 Ne7 Ra5 Ndc6 Rd5 Bh3 f1Q Nb8 Bf7 Be6 Kd8 Rc1 Bf2 Ka1 Nf6 Rh1 Qde2 Nd1 Nh5+ Nb2 Bg3 Rh3 f2 Rb1 Bh2 Rf3 Qe3 Qg1 Qc5 Qh1 Re8 h8R Bg3 h7 Bh2 Bd2 Bc7 Bf4 Rf8 Rg8 Re8 h8B Rf8 Bc1 Nf4 Be3 Rh5 Bd5 Ne6 Bf4 Qg5 Bd4 Qg7 Bc4 Rd5 Rh8 Rg8 Rh6 Rh8 Rf6 Rhh5 Rg6 Ng5 Ra6 Ne6 Ra8 Qfg2 Rg1 Qh3 Rg6 Qg2 Qc1 Qf1 Nd1 b2+ Ka2 b1N Ka1 Rhe5 Nb2 Nc3 Bde3 Ne2 Rf6 Qa5 Ba7 N2d4 Rh6 Qc5 Ba2 Ng5 Rc6 Nge6 Nc8 Rd7 Bc4 Bg8 Ba6 Rh5 Bb5 Nf8 Bc4 Rd6 Be6 Rdd5 Bf7 Nfe6 Ne7 Bh7 Bg8 Bg6 Bh7 Be8 Bg8 Bf7
1R1N2r1/B1N4n/1P1n1qBr/1pPn1pR1/QpNPqq2/1b1k4/8/bK2R2B w - - 0 1 illegal: No proof kernel
1K1nr2N/BP1bbp2/2r3bk/1Nq1P3/Rnp2P1B/1Q1N3R/pB2R3/q2r4 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Ke2 Kf5 Kd3 Kg5 Kd4 h5 Ke5 c5 b4 a5 g4 a4 f4+ Kg6 g5 c4 e4 h3 b6 a3 b7 h2 b5 d4 b6 d3 Bb2 d2 Nh3 h4 Qb3 d1R Nf2 h3 Nc3 Ra4 Nb5 Rh6 Nd3 Na6 b8B Nc7 b7 Ne6 Ba7 Qc7 d8R Bd7 Re8 Be7 Kd5 Kh5 g6 Nd8 g7 Nf6+ Ke5 Qa5 g8N Nd5 Ra2 Nb4 Ra1 Bf5 d7 Rc6 Ra2 Bg6 Ra1 Bg5 Ne7 Kh6 Ra2 Bf5 Ng6 Be7 Nh8 Bg6 Rf1 h1B Rf3 h2 Rh3+ Bh4 Re7 Bf3 Re8 h1Q Re6 Bg4 Re8 Ne6 d8B Qg1 Bf6 Nd8 Re7 Bd7 Ra1 Rc5+ Kd6 Re5 Re6 Qa6+ Kc7 Qc5+ Kb8 Ra5 Rd6 Re8 Re6 Ra4 Re5 Ra5 Be7 Qf6 Re6 Ra6 Ra2 Qfd4 e5 Rc6 Bf6 Rc7 Ra6 Rc6 Ra4 Qg1 Ba1 Qe1 Re2 a2 Bd4 Qc3 Be7 Qa1 Bb2 Qd4 Bec5 Qd5 Bf2 Qc5 Bg3 Bh5 Be1 Be7 Bh4 Bg6
K7/3B1Nr1/1bn3p1/2pkN1P1/QB1Br2r/RPq2b1R/1N1P2p1/nrb4R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Qc2 Nh6 Qf5 Ng8 Qg4 hxg4 Kf2 Kd7 h4 Kd6 e4 f5 b3 a5 h5 f3 Ke3 f2 Kd4 g3 b6 g2 b7 a4 h6 a3 h7 g6 Bb5 f1R Bb2 a2 Rh3 f4 Bd7 f3 Nc3 f2 Na4 Rb1 Nf3 f1R Ne5 Na6 b8B Nb4 Ba3 Rf5 Ba7 Ne7 Nb2 Bb7 Bb6 Rg8 h8R Nc6+ Kc4 Rb8 Kb5 Rg7 Bd4 Qc8 Rh1 Rf4 R8h3 Ne7 Ka5 Rh4 Kb5 c6+ Kb6 Qc7+ Ka7 Re8 Bc3 Kc5 d6 Qc8 Nf3 Qc7 e5 Kd5 e6 Nc2 Ne5 Qc8 Bd4 Qc7 Bc8 Qa5+ Kb8 Qc3 d7 c5 Bb4 Nc6+ Kc7 Be7 d8N Bf6+ Bd7 Ba8 Ndf7 Bd8+ Kc8 Ba5+ Nd8 Bb6 e7 Rf8 e8Q Rff4 Ndf7 Rfg4 R3h2 Re4 Rh3 Rf1 Rc1 Na1 Rc2 Rb1 Rcc1 Nd8 Kb8 Bc6 Rcf1 Ba8 Rfg1 Nc6+ Kc8 Ne7+ Kb8 Rc1 Bc8 Re3 Nd6 Nc2 Ba6 a1B Nbc4 Bb2 Bb5 Ke6 Ndf7 Bf3 Re1 Kd5 Ka8 Rd1 Ba4 Ra1 Rb1 Bc1 Nb2 Ree4 Qb5 Ra3 Ra1 Ra2 Qa5 Ra3 Bd7 Nc6 Qa4 Ra2 Nd1 Rb2 Ra3 Rb1 Nb2 Na1
3k4/1P1pb3/b2P4/1N1n1Nnp/3RB1r1/RPNq1p1b/1B3bRQ/K4qrB w - - 0 1 legal: proof: b4 g5 f4 e5 h4 exf4 a3 gxh4 a4 b5 axb5 Qf6 Nf3 Qe6 Ng1 Qb3 cxb3 Kd8 Ra4 Ke7 Ra1 Ke8 d4 c5 Kd2 h5 Kc2 a5 Kb2 f5 g4 a4 e4 h3 e5 f3 e6 f2 g5 c4 e7 f4 b6 f3 b7 h2 g6 Nc6 b8R Ne5 b5 Ra5 d5 Nf6 d6 Rg8 b6 Nd5 g7 Nf7 Nc3 Ng5 Bg2 f1Q Qd2 Qd3 Nb5 c3+ Ka2 c2 Ne2 a3 Rd1 h1B Nec3 Ra6 Bb2 c1B Qf4 Ra5 Qh2 Bd2 Ra8 Ra7 Rg1 Rc7 Rad1 Be1 Ka1 a2 Ra3 Ba6 b7 Rc4 Rd2 Rg4 Rd1 Rh8 g8N Rh7 Rd2 Rg7 Nh6 Rg8 Nf5 Rg6 Bf1 Bg2 Rd1 Bh3 Bg2 Re6 Rd2 Re2 Bh1 Reg2 Re2 R2g3 Re4 Rg2 Rd4 R2g3 Rf1 Rg1 Rf2 Bd2+ Bc1 Qe4 Kb2 Qe3 Rg2 a1Q+ Kc2 Qe2 Bb2 Qe3 Na7 Qf1 Nab5 Be1 Kb1 Qed3+ Ka2 Bg7 Ka1 Bf6 Ng7+ Kf7 e8B+ Kf8 Bg6 Be7 Be4 Kf7 Nf5 Ke8 Nb1 Kd8 N1c3 Bf2+
3q3K/p1q2bRn/R1n2kq1/p1NB1P2/PR1b3P/B1N1qr1Q/5p1B/3N1n2 w - - 0 1 illegal: No proof kernel
kNB2B1n/q2P1bR1/1r1q4/p1p2rPR/1N2pK2/Q1P2n1R/r3B2N/1n3n2 w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ng8 Ke2 Kd7 b4 f5 d4 h5 c3 e5 d5 c5 g7 Kc7 d6+ Kb7 b6 h4 b5 e3 Kf3 e2 Ra5 e1R Ra2 h3 Qb3 h2 Qb2 Nc6 Qb3 Nge7 g8B Nd4+ Kf2 f3 Kg3 f2 Na3 Ng6 Nf3 Be6 Bf4 Rh6 Nc2 Nh8 Qa3 Bf7 Nb4 a6 Be2 f1N+ Kf2 Nd2 Kg3 Kb8 b7 Nb1 Rb2 Ka7 b8N Qf8 d7 Qd6 b6+ Kb7 Bh7 Ra7 Rd2 Ka8 Rd3 Re6 Bg6 e4 Bh5 Re5 Bg4 Rc1 Bh3 Rc2 Bhf1 Rb7 Re3 a5 Ba6 Ra2 Bfe2 Re8 Be5 f4+ Kg4 Re6 Bg7 Re5 Bf8 Qc7 Ng1 f3 Kf4 f2 Rh3 f1N Nf3 Ra7 Bc8 Rb7 Rg1 h1Q Nh2 Qd6 Rg4 Qg1 Rgh4 Nf3 Rh7 Qgd4 Rg7 Qc4 Rh5 Qa6 Rh3 Rc7 Rh5 Rc6 b7+ Ka7 Rh3 Qb6 N8a6 Qbc7 b8R Rb6 Rh5 Rb5 Rb6 Ka8 Nb8 Qa7 Rc6 Rb6 Rh3 Qd3 Rch6 Qd6 R6h5 Rf5+
r2n2B1/1B1pQb1R/1N1pPprr/3P1n1n/PR3bk1/N7/1B4bR/KN3b2 w - - 0 1 illegal: No proof kernel
B4B1b/1n1KBn1p/6p1/k1N1Nr1P/PR2rPn1/Qr1R1bpb/1R3r2/2N5 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 d4 f5 g4 fxg4 e4 c6 d6 Bf5 e5 Qa5 d5 Bc8 d7+ Kf7 Bh3 Qc7 Bf1 Qd6 exd6 Ra4 Nd2 Ra5 Nb1 Ra8 Kd2 e5 Ke3 b5 Ke4 g6 d8R b3 h4 b4 a4 b2 f3 b3 h5 g3 d7 Ke7 Nd2 Kd6 Bh3 Kc5 d6 Kb4 Ne2 b1R Ra3 b2 Qe1 c5 Kd5 e4 Ke6 e3 Re8 c4 Ne4+ c3 Bg4 Bg7 Bh3 Ka5 Rh2 Nh6 Bg4 Nf7 Qd1 c2 Rd3 Na6 Nc5 Rf8 f4 Bh8 Qh1 Rb8 Bf3 Rb3 Ba8 Bb7 d8N Bf3 d7 Ra1 Qg2 b1B Qg1 Ra2 Ba3 c1N Qf1 Bc2 Qf2 Bd1 Ke7 Bg4 Qf3 Bh3 Rg2 Ne5 Rh2 Rf5 Nf7 Ng4 Rb8 Rab2 Rb4 Rc2 Nd4 e2 Ne5 e1R Kd8 Ra2 Rb2 Re4 Qe3 Bf3 Ne2 Nc7 Ke7 Ne6 Kd6 Ng5 Kc7 Bf1 d8B Nf7 Be7 B1g2 Kd7 Bh3 Rd6 Nd3 Nc1 Nd8 Bf8 Nb7 Rdd4 Ndf2 Be7 Nh6 Rd3 Nfg4 Bf8 Bh1 Rb6 Nf2 Rc2 Rab2 Rdc3 Bf6 Na6 Rb5 Bae7 Nf7 Nc5 Bf3 Rd2 Ra2 Ra3 Rb1 Rb4 Ng4 Qd3 Rab2 Ra2 Bh8 Qa3 Rc2 Rd3 Rb3 Rb2 Rf2
2q4k/Qqn1b3/pR3P2/1pp1q3/4n1KN/1B2P1NB/pRPB2b1/3rN1Rr w - - 0 1 illegal: Other
3bnR2/Kb4p1/N1P1P1RB/BP4qQ/2Bpp3/R4n2/N1pn3n/3k1Nrr w - - 0 1 illegal: No proof kernel
N2q1NB1/2PR4/3PP1nK/p2kB2p/2n1bb1B/1n2Qp1R/1rRp1n2/1N4r1 w - - 0 1 illegal: No proof kernel
1qbN2Q1/p2P3r/B3pPr1/1Rprp2R/K4bR1/5B1N/P3n3/1nk1N1rB w - - 0 1 legal: proof: e4 h5 g4 c5 b4 f6 e5 fxe5 bxc5 Qc7 Bb5 Qb6 Bf1 Qd8 gxh5 d6 c4 Rh6 c6 Qc7 c5 Rh7 Ba3 Qd7 c7 Qd8 c6 Rh8 Bc5 dxc5 f4 Kf7 d4 Ke6 Kd2 Kf5 Kc3 Ke4 Kb3 Ke3 h4 b5 d5 g5 h6 e6 f5 g4 h7 b4 f6 g3 h5 g2 d6 Bd7 c8B Be8 d7 Qb6 h6 Bg6 c7 Be4 Qg4 Bb7 Na3 Kd2 Nc2 Nc6 Be2 Nge7 Ne1 Nd5 Rh4 Nd4+ Ka4 b3 Rb1 b2 Nh3 g1R Bf3 Ne2 Qg8 Ba6 Rc4 Qb8 Bb7 Bg7 c8B Ndc3+ Ka3 Bf8 Rg4 Bg7 Bh1 Bf8 Bbf3 Bg7 Rc1 Nb1+ Ka4 Bb7 Rc3 Ba6 Rb3 Kc1 Rb5 Bf8 Bcb7 Bg7 Bbc6 Bc8 Bb7 Bf8 Ba6 Bg7 Nc2 Rd1 Ne1 Rd5 Qe8 Rg8 h8N Bf8 h7 Bh6 Nf7 Rg6 h8R Bf4 Nc2 Na3 Rhh4 b1R Nd8 Ra1 Qf8 Nb1 Rh5 Na3 Qd6 Bb7 Rg3 Qc7 Nc6 Rh8 Rb6 Qb8 Qf8 Bc8 Qg8 Kd2 Nd8 Rh7 Rb5 Rg1 Rg4 Nb1 Ne1 Kc1
q2nRr2/q3Bnp1/3p2R1/1pq2NP1/K4Q2/2R1p1nB/P2BbP2/krN4N w - - 0 1 illegal: No possible last move, all moves rejected
2RRBnnb/2r2NBP/Q1b1R1pn/N1P2nPp/6kn/2pp2B1/1N1q4/6K1 w - - 0 1 illegal: No proof kernel
1b2NR1n/p1Nnp1Pn/1N3r2/kB5K/p2B1Pr1/P2B3Q/rq3p1R/5R1r w - - 0 1 illegal: No proof kernel
3BN2K/2nr1p2/1N1Nr2P/1p1B4/rPq2Pk1/2nb3p/RBr1q1p1/R2R1Q2 w - - 0 2 illegal: No proof kernel
2N1q3/r3p1NN/2Rn2p1/3n1q1R/Pk3pP1/bnrp1P1p/QRB1B3/2K4B w - - 0 2 illegal: No possible last move, all moves rejected
qR1KN3/4p3/B3k3/1p2pqPb/nq2B1R1/b4r1P/pPN2np1/B2N1QR1 w - - 0 1 illegal: Other
Bb1q2NN/1pR2P2/4k1BK/p5R1/qP4rp/Ppp4p/5npR/1QN1B2n w - - 0 1 illegal: Other
B2Q3N/rq3N1R/p4B1B/3r2R1/2pN1rKn/3bkP1R/P1P1qb2/2nrrb2 w - - 0 1 illegal: No proof kernel
1NbBn3/4B2p/1N1qp3/k1n1R2P/1RnrrQ1R/p5br/P4bBP/3Nn1K1 w - - 0 1 illegal: No possible last move, all moves rejected
Brb1QR2/3n1N2/1B2rpk1/1Np3q1/1rP1Nr2/r1PR3p/2KB1P2/3R1qbn w - - 0 1 illegal: No proof kernel
KRnk3n/5PRb/1p1r2N1/1n1B1pp1/N1NB4/2q2q2/BP1b2Pr/RQ1nn3 w - - 0 1 illegal: No proof kernel
2k3b1/q2q1np1/3QNN1q/Kn4BR/P1pNR1r1/2P2p1B/5PRq/B1r1bb2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 gxh5 a5 Qg4 axb4 Qe2 Ra3 Qd1 Ra8 h4 Kd7 a4 c5 d4 b5 Kd2 e5 h6 f5 h5 f4 h7 e3+ Kd3 e4+ Ke2 b3 d5 b2 h6 f3+ Ke1 e2 Kd2 e3+ Kc3 e1Q+ Qd2 b4+ Kb3 e2 d6 Ba6 Qd4 Qd2 Rh2 e1Q Qf6 Qee7 Ne2 Kc8 Nd4 Nc6 Nc3 b1Q+ Bb2 Qa7 Bh3+ Qdd7 Rg2 Qh1 Re1 Bf1 Ne4 Qh2 Ba1 Qg5 Re2 Be7 Kc4 b3 Kb5 b2 Qf8+ Bd8 Nf6 b1B Qe7 c4+ Qe5 Qd2 Re4 Ba5 Qe6 Qdf4 Qe7 Be1 c3 Nb8+ Kb4 Na6+ Ka5 Rb8 Qe5 Bbd3 Qe6 Rb1 Qe7 Qdg4 Qe5 Rc1 d7+ Kb7 d8B Kc8 Qd6 Qgd7 Nh5 Qd2 Bg5 Qe3 Nf6 Nc7+ Kb4 Qb7+ Ka5 Nb5 Re6 Bf5 Re4 Be6 Bf5 Ne7 Bh3 Rd8 h8R Ng8 h7 Nh6 Rg8 Qb8 h8N Nf7 Ng6 Qd2 Nf4 Qba7+ Kb4 Re8 Rh8 Bd5 Rh5 Re6 Re2 Re4 Nfe6 Rg4 Re4 Qe3 Bh4 Qh6 Bg5 Nh8 Nc5 Bg8 Nce6 Qb8 Ka5 Nf7 Nc7 Qb7 Nce6 Qa7+
2Q1R1Kq/Rnn4N/2R1r1b1/4P2B/2p1pN2/B1Pbb1pq/3NP1r1/1nn2B1k w - - 0 1 illegal: No proof kernel
B3N3/1r4r1/1R1npq1b/1B1RPPB1/2pnb2N/N1k5/qpP1qK1b/1q3QR1 w - - 0 1 illegal: No proof kernel
NKn1n1k1/8/3p3R/q1b1pBp1/1nR2q2/qBPPr1PN/1N1n2b1/B3RQ1r w - - 0 1 illegal: No proof kernel
4Nr1K/3bPqBp/rB2kN2/6q1/1Rn1Bp2/qnRRr2P/1qp2P2/bN1Q4 w - - 0 1 illegal: No possible last move
3q3n/1pp1pr2/1kP4n/RB2q1pQ/1RP5/1q2r1P1/1RbbNb1N/BN2B2K w - - 0 1 illegal: No proof kernel
1n4n1/bK1p2r1/q2Nb1pp/2BQB1kn/1N1b1pBR/R1r1N3/q2P2PP/R7 w - - 0 3 legal: proof: b4 c5 a4 e5 f4 b5 axb5 exf4 Ra6 cxb4 Ra2 Ba6 Ra1 Bc8 Kf2 Ke7 e4 Kf6 c4 a5 c5 h6 b6 f3 Ke3 b3 Kd4 b2 c6 a4 c7 f2 e5+ Kg5 e6 f5 e7 a3 Kc5 g6 b7 a2 Kb6 Ra4 e8R Ra7 Ne2 Na6 b8B Bb4 Nec3 Rh7 Na3 b1Q Nd5 Bb7 Be2 f1N Bg4 Qc8 Nc2 Rg7 Qf3 Ng3 Nde3 Bd5 Ba3 Nh5 Re4 Be6 Rf1 Bd6+ Nb4 Bg3 Rf4 Bf2 Qd5 Bg1 R1f3 Ra8 Ba7 Nb8 Bb2 Bf2 Be5 Qa6+ Kc5 Qb3 c8N Qba3 Nd6 Qb2 Rd1 a1B Rh3 Qba3 Rd4 Bb2 Ra1 Qa2 Rd3 f4 Rh4 Qb7 Bb6 Ra3 Kb5 Qa7 Bc5 Bd4 Rc3 Qa8 Kb6 Qa4 Rd3 Rc3 Kb7 Rc2 Ra3 Rc3 Ndf5 Qa5 Bcd6 Ba7 Bc5 Qa4 Nd6 Bg1 Nef5 Bd4 Ne3 Qa6+
1R1n1rb1/3ppR2/B1Qn2pB/q1r1b3/1K2R1B1/p2P1qN1/k2P2Pr/N2N1q2 w - - 0 1 illegal: No proof kernel
N2kb2q/2pprpN1/2bPBK1B/3P3r/R1P2Bn1/2n2p1N/1RR3Qb/3b1b2 w - - 0 1 illegal: Other
2B1r1k1/1rRrp2n/rnN3P1/p1pp3Q/4P3/5nb1/PNB1K2R/1bqNR1B1 w - - 0 1 illegal: No proof kernel
1b1n2B1/pr1k1b2/r3n3/2QK1p1R/Pp1BBPN1/R2NPb2/2qp3p/1R2n1N1 w - - 0 1 legal: proof: d4 e5 h4 exd4 b4 c5 bxc5 g5 Rh3 gxh4 Rh2 Nh6 Rh1 Ng8 Kd2 h5 Kd3 b5 Ke4 f5+ Kd5 h3 c4 b4 g4 d3 a4 d2 f4 h4 e3 h2 g5 h3 g6 Rh6 g7 Qc7 c6 Bd6 c5 Na6 Bc4 Rb8 Nc3 Rb7 Qc2 d1N Na2 Nf2 Rb1 Nd3 Bb2 Ne1 Nc1 Re6 Bc3 Nh6 g8N Nf7 Nh6 Nd8 Bd4 Be5 Qc3 d6 Nd3 Ke7 Ba2 Bd7 Qc2 Be8 Ng4 Bf7 Bc4 Qc8 c7 Ke8 c6 Nc5 Ra1 Ke7 Ra3 Ke8 Nf3 Ke7 Rg1 h1B Qc3 h2 Rf1 Qd7 c8R Qc7 Rb8 Qc8 c7 Kd7 Bb3 Nc2 Rb1 Ne1 Kc4 Bg2 Ng1 Bf3 Qc2 Ne4 Ra8 Ng5 Ba2 d5+ Kc5 Qb8 Qc3 Ra6 c8B+ Ke7 Bd7 Qc8+ Bc6 Bc7 Be5 d4 Be4 Nge6+ Kd5 Bd6 Qc5 Qc7 Rc8 Kd7 Rb8 Qb6 Rc8 Bb8 Bg7 Qc7 Bc4 Nc6 Rh8 Ncd8 Rh5 Qc8 Ndf2 d3 Bd4 d2 Nd3 Qc7 Qb6 Be8 Ba2 Qc3 Qc5 Nc7+ Ke5 Qc2 Bg8 Nce6+ Kd5 Bf7
6Bn/2Kb2Bp/3nq1k1/pR1RpRP1/2Nr2p1/Pp2B1NQ/2N3P1/b4qrb w - - 0 1 illegal: No proof kernel
1nrRR1Br/1N2bR2/KNk1p2b/2N1Bp2/1p1P1P2/3p1pb1/1Pb1n1Q1/1B1q4 w - - 0 1 illegal: No proof kernel
1BKb4/3q2k1/p2NQbB1/N2ppbn1/3nP1p1/2Bp2bR/Pnr2RPN/R7 w - - 0 1 illegal: No proof kernel
3RB3/1pr1B1kn/1p3bp1/1b2R1Pq/2B1Ppp1/Q1N1RP1p/2N1r3/4nNbK w - - 0 1 illegal: Other
NRbrb1rQ/Bb3Pb1/3kP1r1/4q2N/3n1B2/n3K2R/1P1R2Q1/3b1N2 w - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 g5 a4 gxh4 axb5 a6 bxa6 Bh6 Ra3 Bg7 Ra1 Bf8 g4 f5 gxf5 e6 d4 Ra7 d6 Rb7 d5 Rb5 d7+ Kf7 d6 Rb7 Bh3 Ra7 Bg2 Ra8 Bd5 exd5 Kd2 h5 f4 c5 e4 d4 f6 Ke6 f7 h3 a7 c4 e5 d3 Ne2 h2 Ra5 c3+ Ke1 h4 Kf2 h3 Be3 c2 Rb5 c1R Qf1 d2 Ng3 Nh6 Nh5 Qc7 d8Q Ba6 d7 Bg7 f8R Nc6 Rd5 Nb4 Rd3 Rc6 Qg2 d1B Nd2 Nc2 Nf1 Na3 Rd2 Nf5 Qc8 Rb8 a8N Bb7 Bc5 Nd4 Ba7 Ba6 f5+ Ke7 Nfg3 Rg6 f6+ Ke6 f7 Ke7 e6 Qe5 d8B+ Kd6 Nf1 Bb5 Qf3 Bc6 Rg1 h1B Rg3 h2 Bg5 Bg2 Rh3 h1B Qd8+ Bd7 Qg3 Bb7 Bf4 Bhc6 Qg2 Bb5 Nhg3 Rc8 Qh4 Rg8 Qh8 Bba4 Nh5 Rb8 Re8 Bac6 Re7 Rbf8 Re8 Bb5 Rb8 Bdc8 Nfg3 Rd8 Nf1 Be4 Ke3 Bba4 Nfg3 Be8 Nf1 Beb7+
Q5r1/1r5N/3r2Qp/q1P3K1/B2N1nPB/1Q1rk1PR/b1Rq2Rn/5b2 w - - 0 1 legal: proof: g4 a5 e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 e6 b4 Bd6 bxa5 Bg3 hxg3 Qb6 Bf4 Qc7 Bc1 Qd8 Kd2 Ke7 c4 Kd6 f4 Kc5 a6 h5 b6 d5 b7 d3 Ke3 d4+ Ke4 d2 f6 h4 f7 d3 f8R h3 f5 h2 Kf4 Kd4 a7 Nd7 b8Q Ngf6 c5 e5+ Kg5 e4 Qdb3 d1R Qf7 e3 Qg6 d2 Bb5 e2 Nh3 e1Q Nc3 Ke3 Ba4 Rg8 Ne2 Qa5 Ra2 Ba6 Nd4 Ne5 Rc2 Nd5 f6 Nf4 f7 Bf1 Qb5 Rb8 a8Q Qe2 Qb3+ Qd3 Rg1 h1B Rg2 Rb7 Rd8 Qdc3 f8Q Qd3 Rc8 Qdc3 Qff6 Nf3+ Kf5 Nh2 Kg5 Qd3 Qh6 Qdc3 Qfg6 Qd3 Rg1 Bd5 Rg2 Re1 Bb2 d1R Bc3 Qd2 Rc6 Rd8 Rc8 Rd6 Rh8 Qc1 Ba1+ Rd3 Bb2 Qcd2 Bc3 Qb5 Ba5 Ra1 Bd8 Qba5 Kf5 Re1 Qb6 Bc4 Ng5 Ra3 Qhh5 Rd3 Be7 Ba2 Qb3 Re2 Rh6 Re1 Nh7 Re2 Qhg5 Re1 Rh3 Rb1 Qa3 Rbd7 Q5h6 Rbb7 Bh4 Rd8 Qb3 Rg8 Kg5 gxh6+
krrQBK2/N3pN1b/P1r5/qb1Rb2R/2NP2q1/Q2b4/1P1R3b/B7 w - - 0 1 illegal: Other
1n2qbB1/N2qn3/RpP4R/5N2/1P1nB2Q/2k1Pb1B/b5nN/2K1b1Q1 w - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 d4 cxd4 g4 Qg5 gxh5 Qf6 a5 Qd8 a6 b6 Nc3 Nc6 Ra2 Rb8 Nb1 Rb7 Ra1 Nb8 axb7 a5 Qd3 a4 Qd2 Qg5 Qd1 Qd8 b3 a3 Bb2 Rh7 Nh3 Rh6 Ng1 Rh8 Ra2 axb2 Ra4 Qg5 Ra1 Qd8 Ra3 g5 Ra4 Rh6 Bh3 Rc6 Ra6 Rc5 Ra1 Ra5 Bf1 Ra8 bxa8B Qe7 Nf3 Qf6 Ng1 Qd8 Kd2 Ke7 c4 Ke6 h4 f5 b4 d5 h6 d3 h7 f4 h8N g4 c5 d4 h5 g3 h6 g2 h7 f3 Rh5 f2 Ra4 Ne7 Nc3 b1B Kc1 Bb7 Nf7 Qe8 h8Q Ba2 Ra6 Bf3 Rh6+ Kf5 e6 d2+ Kb2 d3 Nb5 Kf4 Nfd6 Ke3 Qe1 d1Q Na7 d2 Be4 Qda4 c6 d1N+ Kc1 Nc3 Qg8 Kd4 Nf5+ Kc4 Qg4 Nb5 Qh4 Nd4 Qd1 Qb5 Qe1 Qd5 Qd1 Bg4 Nf3 g1B Nh2 Bf3 Bh3 f1N Qde1 Bf2 e3 Ng3 Qg1 Qdd7 Ra3 Be1 Ra6 Nd5 e7 Nf4 Bg2 Kc3 Bh3 Qed8 e8B Ng2 Bf7 Q8e8 Ng7 Ngf5 Bg8 Ne7 Nf5 Bc4 Rg6 Be6 Rh6 Ba2
1Q2n1KR/Q3p2P/1rPq2PB/R1n3NQ/8/N1qRB3/1k4nq/2r3nq w - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 axb5 f5 exf5 a6 b4 Nh6 b6 Kf7 b5 Qe8 b7 Qd8 b6 Ng8 Bb5 Ke8 g4 axb5 g5 h5 h3 g6 Ra2 Ra7 Ra1 Bh6 gxh6 Ra8 Ba3 g5 Qd3 d6 Ra2 g4 Qf1 g3 Bc1 Be6 Ra1 Bd5 Qd3 Bf3 Qd1 Bg4 hxg4 Ra4 Ne2 Ra6 Ng1 Ra8 Kd2 Kd7 Kd3 Kc6 Ke4 Kc5 c4 Kb4 Kd5 g2 Ke6 h4 Kf7 h3 f4 h2 f6 d3 g5 d2 f5 d5 h7 d4 c5 d3 g6 Nd7 b8B Qc8 b7 Ra6 Qh5 Kb3 Qf3 d1Q Ra5 b4 Bbf4 Rb6 Bfe3 d2 Nh3 g1N b8Q Qc2 Qg4 d1N Qh5 Qd2 Qb7 Qd6 Qa7 Kc2 Bh6 b3 Bce3 b2 Na3+ Kc3 Ng5 b1Q Kg7 Qa2 f7 Kb2 f8Q Ngf6 Qd8 Qcc7 Qdb8 Qa1 Kf7 Ne8 c6 Nc5 f6 Qc1 Ra4 Qc3 Rd4 Rg8 Rd3 Rg7+ Kf8 Rf7+ Kg8 Ne6 Bd4 Ne3 Bc5 Ng2 Be3 Nf3 Rf1 Ng1 Rf5 h1Q Ra5 Nc5 Kh8 Rg7 f7 Qdh2 f8R Rf7+ Kg8 Rf1 Qc8 Rc1 Qcb8 Qd8 Kf7 Re1 Rh8 Rc1 Kg8 Qdd6
4K3/P2p3P/qb1pB1kB/2P1n3/b1R2B2/2N3NN/1Qr1qn2/bQ3qR1 w - - 0 1 legal: proof: b4 b5 d4 a5 bxa5 h5 e4 f5 exf5 h4 g4 Ra6 d5 Rah6 a4 Rh5 gxh5 h3 d6 cxd6 a6 Bb7 a5 Bxa6 Bxh3 Bb7 Bf1 Bc8 Kd2 Kf7 Ke3 g5 Ke4 e5 h4 b4 c4 g4 f4 b3 c5 g3 f6 g2 Kf5 b2 h6 e4 a6 e3 h5 e2 a7 e1Q h7 Qe3 h6 Na6 Bc4+ Ke8 Kg6 Be7 f5 Bb7 f7+ Kf8 Nh3 g1B Nc3 b1Q Be6 Qdb6 Ra4 Bc6 Rc4 Qe2 Bf4 Bd4 Rg1 Bd8 Qe1 Ke7 f8N Nf6 Qf1 Qa1 Qb1 Ng4 f6+ Ke8 Kg7 Nf2 Ng6 Nb4 Nh4 Ba4 Nf5 Nc6 Ng3 Ne5 f7+ Ke7 f8B+ Ke8 Re1 Qa6 Rg1 Bb6 Kf6 Rg8 h8Q Rg7 h7 Re7 Qa2 Qaf1 Qa1 Rg7 Qb1 Rg5 Bh6+ Rg8 Nce4 Ba1 Nc3 Rf8+ Kg7 Ke7 Qd1 Rf5 Qb1 Rf6 Qb8 Rf7+ Kg8 Kf6 Qb7 Rg7+ Kf8 Rg5 Qb2 Kg6 Ke8 Rg4 Bd2 Rd4 Bdf4 Rd2 Qb8 Rc2 Qb1 Ba5 Q8b2 Bb6
3K2b1/1NQ2B1R/1P2pp1Q/1B1bNP2/RNq1R1P1/2r5/b1pn2k1/5n1b w - - 0 1 legal: proof: e4 b5 b4 a5 bxa5 g5 a4 d5 exd5 b4 c4 b3 h4 gxh4 d4 b2 d6 Bf5 d5 Bh6 c5 Bc8 Bd2 Bf4 d7+ Kf8 Bc1 Bd6 cxd6 Ra6 Bg5 Rb6 Bd2 Rb5 axb5 Qe8 Be3 Qd8 Ba7 Na6 Bb8 Nxb8 Ke2 Kg7 Ke3 Kf6 Kd4 Kg5 Ke5 c5 g4 h5 f3 f6+ Ke6 Kf4 a6 Kg3 a7 h3 a8B c4 f4 h4 b6 c3 f5 h2 Qc1 h3 Ra4 c2 Nf3 Qc7 Qh6 Qc4 Ne5 Na6 Nc3 b1B Na2 Nc5+ Kf7 Ne4 Ke8 Rh7 d8R Nd2 Nb4 Be6 d7 Ba2 d6 Bd5 Bd3 Kg2 Re1 h1B Re4 Be6 Bd5 h2 Rda8 Rf7 d8Q Rg7 d7 Rh7 Qf8 Rh3 Qh6 Rf3 Be2 Rc3 Qc7 Bf7+ Kd8 e6 R8a7 Ne7 Bc6 Nd5 Rb7 Qb3 Beb5 Bg8 Qb8 Ne3 Ke7 Ndc4 d8N Na3 Be8 Nf1 Rd4 Kg3 Re4 Qc4 Rd7 Nb1 Qc7 Qd5 Re2 Qe4 Nb7 Nbd2 Kd8 Qc4 Rh7 Bd5 Re4 h1B Bf7 Kg2
1bB5/p1rQB2R/2P5/1K1RRBqq/1q3QNq/1Ppnp3/3b1P2/N5k1 w - - 0 1 legal: proof: e4 c5 a4 b5 axb5 f5 d4 fxe4 h4 g5 b6 gxh4 b7 c4 bxa8Q Na6 b3 Nc5 dxc5 Ba6 b4 Bb5 Qe2 Ba4 Qd1 Bb3 cxb3 Bh6 Qd4 Bg7 Qd1 Bf8 Ke2 Kf7 g4 Kg6 c6 d5 g5 Kf5 g6 Kg4 b5 e5 g7 h5 b6 d4 b7 h3 b8R h4 Ra3 e3 Qb7 e4 Ra1 h2 Ra5 d3+ Ke1+ e2 Kd2 e3+ Kc3 h3 Ra1 d2 Qb4 Rh7 Rb5 Ne7 g8B Ng6 Re5 Nf4 Nf3 e1B Na3 Bd6 Nc2 Qg5 Bd3 Bb8 Raa5 Rc7 Kd4 c3 Kc5 Qf5 Kb5 Qg5 Be4 Nd3 Na1 Kf4 Ba3 Kg4 Qc2 d1Q Be6+ Kf4 Bc8 Bd2 Qa4 Qdg1 Qb1 Q1g4 Be7 Q4h4 Qd1 Qhg4 Rf1 h1Q Nh2 Q4h4 Ng4 h2 Bg6+ Qe4 Bgf5 h1Q Qd4 Qf3 Rh1 Qe2 Qd7 Kf3 Qg1 Qef4 Qh2 Qe4 Qf4+ Kg2 Rh3 Kg1 Rh2 Qg3 Rh7 Qb4+ Ka6 Q3h4 Rad5 Qd6 Kb5 Qf3 Nh2 Qfh5 Ng4 Qb4+
2R1KqQ1/1k2B2P/4p2N/q3nN1n/2qb3p/p3PR1P/1n1N2B1/1Q1R2n1 w - - 0 1 legal: proof: f4 f5 d4 g5 g4 c5 b4 cxd4 a4 b5 Bb2 h5 Ba3 a5 axb5 h4 Bc1 a4 Qd2 Ra5 bxa5 Bb7 Qd3 Bd5 Qd2 Bf7 Qd3 Bh5 gxh5 Rh6 Qd1 Re6 Qd3 Re4 Qd1 Rxf4 Bg2 Rf1+ Bxf1 f4 Kd2 d5 Kd3 Kd7 c4 Kc7 e3 g4 h3 e6 a6 g3 h6 g2 a7 f3 a8R f2 c5 Qe7 c6 Qd6 h7 Qc5 b6+ Kc8 c7 Nf6 b7+ Kd7 c8N Kc7 Nd6 Qc6 Nd2 Nbd7 Ba3 Nh5 Nf7 Bg7 Be7 a3 Ne2 g1N Bg2 f1Q Nh6 Qf8 Ng3 Qb6 Ngf5 Qa5 Qb1 Ne5+ Kc2 d3+ Kb3 d4 Rc8+ Kb6 b8Q+ Ka6 Qc2 Bh8 Rd1 Bf6 Qb1 Bh8 Nc4 d2 Rf1 d1N Rf3 d3 Nd2 Nc4 Qg3 Kb7 Qg4 Ndb2 Qg8 Qc7 Kb4 Ne5 Kb5 Qcd8 Nb3 d2 Kc5 d1Q Nd2 Qa5+ Kd6 Ng4 Kd7 Qb3 Nf7 Bd4 N7h6 Ne2 Rd1 Ng1 Ng3 Qc4 Ngf5 Qf6 Ke8 Ne5 Bb4 Qg7 Be7 Qf8+
1QQ2nq1/r2NNP2/1BPq1p2/1BQ1q2k/3R4/1KRB2p1/2pn1P2/3n2q1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 b5 a3 g6 e5 Bh6 a4 d5 axb5 dxc4 Qc2 a4 Qb3 Nc6 Qd1 Nb8 Nc3 f6 Ke2 Be3 Nb1 Bb6 Ke1 Ba5 bxa5 Ra6 Be2 Rd6 Bf1 Rd3 e6 Rdh3 Ke2 R3h7 Ke1 Rf7 exf7+ Kd7 Bd3 c5 Be2 Bb7 Bf1 Bc6 bxc6+ Kd6 h4 Ke6 d4 Kf5 Kd2 e5 Kc3 e4 a6 g3 h5 g2 d5 g5 a7 g4 a8B a3 h6 Kg6 h7 a2 d6 e3 d7 g3 Qb3 e2 Bd2 e1Q Rh4 Qee8 Qb5 Ne7 Bb7 Qg8 Bd3+ Nf5 Nf3 g1Q Rd4 Kh5 Ba6 Ne3 Ne5 Nd1+ Kc2 c3 Kb3 c2 Nc3 Qe7 d8Q Nd7 Qdb8 Qd6 Nd5 Nf8 Rc1 a1Q Be3 Qa5 Ne7 Qae1 Ka3 c4+ Qc5 c3 Bab5 Qe2 Kb3 Qee1 Ra1 Qe2 Ra3 c1N+ Kc4 c2 Rc3 Nb3 Nd7+ Qg5 Kb4 Nd2 Ka3 Rg8 Qc8 Qge5 Ka2 Qg4 h8Q+ Nh7 Qb8 Rc8 Qg8 Rc7 Qgc8 Qg8 Ka3 Nf3 Kb3 Ra7 Bc1 Nf8 Ba3 Qg6 Bb4 Qg7 Ba5 Qg8 Bb6 Nd2+
Bqr2b1q/8/n2N1P1R/n1n1r1b1/B2R2Kb/2R1BP1P/1QN1k3/rQ4q1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h3 Kd2 h2 Ke2 h5 Kd2 h4 Bd3 h3 Nf3 Bb7 Rf1 h1N Re1 h2 Re2 Bd5 Re3 Bf7 Re2 Bh5 Ra3 Bg4 Ra1 Bh3 gxh3 Rh6 Na3 Rh7 Nb1 Rh8 b4 Kf7 c4 Kf6 c5 a5 c6 d5 c7 e5 c8B a4 b6 e4 b7 a3 b5 e3+ Ke1 a2 b6 Na6 b8Q Ne7 b7 Ng3 Ng5 Nc6 f3 Ne4 Bc2 d3 Bb2+ d4 Be6 d2+ Kf1 h1R+ Kg2 Re1 Bd7 Na5 Bc3 Nec5 Kg3 Qb6 Rh2 e2 Bca4 Qa7 Qc2 d1Q Bd2 d3 Be3 d2 Na3 Rg8 Rb1 a1B Rb4 Be5+ Kh4 Bf4 Rd4 Qa1 Kg4 d1Q Qb1 Rh8 Nf7 Bg5 Nd6 Ke5 Nc2 Qc1 Qc8 Qb8 Bdc6 Rh5 Be4 Rd1 Qd7 e1B Qdb5 Beh4 Q5b2 Rh1 Rg2 Qg1 f6 Qa2 Qd1 Qg8 Qdb1 Qh8 Bec6 Qe8 Rg3 Rc8 b8R Qd8 Ba8 Qc7 Rb6 Qa7 Rc6 Qb8 Rf4+ Kd5 Ne4 Kc4 Nd6+ Kd3 Rd4+ Ke2 Rc7 Qc1 Rg1 Qe1 Rh7 Qf1 Rh6 Qf2 Rgd1 Re1 R1d3 Qg1+ Kf5 Rd1 Rc3 Rf1 Q1a2 Ra1 Qab1 Qf1 Kg4 Qd1 Bd7 Qg1+ Kf5 Na4 Nf7 N4c5 Ba4 Bf4+ Ng5 Qf1 Kg4 Qh1 Ne4 Re5 Nd6 Bfg5 Qa3 Qh2 Qab2 Qg1+
1Qq1Q3/1bBN2r1/3nq1R1/P1n4N/1r1q2QR/2PP3b/1kB1n2R/2b2K1q w - - 0 1 illegal: No possible last move
5N1Q/2kn3r/1r3BPB/q1bPP1n1/1qN2qbR/1Qq1r1B1/bR2Q3/5K2 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 h4 Bf8 b4 g5 hxg5 a6 e3 Qd7 b6 Kd8 b5 Ke8 b7 Qd6 b6 Qd8 Bb5+ axb5 g4 Kd7 d4 h5 g6 f5 d6 c5 d5 b4 e4 c4 e5 h4 g7 f3 g5 b3 g6 f2+ Kf1 f4 Ne2 c3 Qd2 b2 Kg2 f1B+ Kg1 h3 Na3 b1R Qb2 f3 Qd2 h2+ Kf2 c2 Ra2 Nh6 g8Q Rh7 Qh8 Nf7 Rb2 Ng5 Nf4 Bc4 Qe2 Ba2 Nc4 Ra3 Ne6 Re3 Ke1 f2+ Kf1 Na6 b8B Nc5 b7 Qa5 Ba7 Be7 Rg1 h1Q b8Q Qh4 Nf8+ Kd8 Rg3 Nd7 Qb3 Qd4 Rg4 Qdd2 Qd1 Qdb4 Bd2 c1Q Rh4 Qcc3 Bd4 Nf6 d7 Kc7 Bc1 Bc5 d8B+ Kb8 Be7 Bg4 Qe2 Nd7 Bf6 Kc8 Rh1 Kc7 Rh4 Rf3 Be3 Rh3 Bf4 Rf3 Kg2 Re3 Bg3 f1Q+ Kh2 Qf3 Kg1 Qe4 Kf1 Qf4+ Qf3 Re2 Qg8 Qb7 Qa4 Ne6 Rb3 Qe4 Qh8 Rbb2 Bcf4 Re3 Bh6 Ng5 Qe2 Qbb6 Ra3 Rb4 Rb3 Rb5 Rb2 Qf4+ Qf3 Qab4 Qb3 Q6a5 Qf2 Rb6 Qf3 Qe4 Qe2 Qf4+
6B1/nq2b1rP/r1PQ2RQ/4KR2/2Pn2Nb/Q4b2/1nr1bNk1/Bq1N4 w - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 f5 exf5 b5 axb5 axb4 d4 c5 dxc5 Qc7 Qd6 Qb6 Qd1 Qd8 Ke2 Kf7 Kd3 Kf6 Kd4 e5+ Ke4 d5+ Kd3 g5 c4 b3 h4 g3 f4 e4+ Kd4 g4 b6 g2 b7 b2 h5 e3 h6 g3 Qc2 e2 Ra5 e1N Be3 Nd3 Qb3 Ne7 Nc3 b1Q Nh3 g1B Nf2 g2 Ncd1 Qb6 Qa3 Nb2 Bd3 Ra6 h7 Rg8 Be4 Rg7 Bf3 Bh2 Rg1 Bg3 Bh5 Qb4 Bf7 Bh4 Bg8 Be6 Bd2 Nc8 Bc3 Be7 Rb5 Na7 c6 Nd7 b8N Nf8 Ra5 Qb7 Rb5 Bf7 Ra5 Bh5 Rb5 Na4 Ba1 Be2 Rc5 Nb2 Ra5 Rg3 Rc5 Rc3 Nd7+ Kg7 f6+ Kh6 f5 Kg5 f7 Kf4 f6 Kf3 Ke5 d4 Ra5 Ne6 f8Q d3 f7 d2 Qh6 Nd4 f8Q+ Kg3 Qad6 Rc2 Nf6 Bf3 N6g4 Be2 Rh1 g1R Rh3+ Kg2 Rg3+ Kf1 Qf3 Rg2 Qfa3 Rg1 Rf3 Kg2 Rf6 Bf3 Rg6 Be2 Kf4 Bf3 Rf5 Be2 Nc3 d1B Ke4 Bf3+ Ke5 Bde2 Ncd1 Kf1 Nf6 Rg5 N6g4 Kg2 Rf6 Rg7 Re6 Qb6 Rg6 Qb7
QKq3Q1/2N1PQ1R/rP3R1b/5r1b/kBR2N1B/6r1/nP2bnn1/4q2n w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 d5 axb5 h6 cxd5 h5 Bh3 exf4 gxf5 Ke7 Bg4 hxg4 Qc2 Kd7 Qd1 Ke8 Kf2 Kd7 e4 c5 d4 g5 h4 a5 b6 g3+ Kf3 c4 f6 a4 h5 a3 e5 a2 Ke4 f3 d6 Kc6 d5+ Kb5 h6 g4 d7 g2 h7 c3 d6 f2 Kd5 f1B f7 g3 e6 c2 e7 Be2 Nf3 g1Q Ne1 g2 Bg5 c1N Nd3 Na6 Bh4 Nc5 Qf1 Bh6 f8R Ra6 Na3+ Ka4 Kc6 Ne4 Qf7 Nf2 Nb5 Nf6 Nc7 Nh5 Nf4 Ng3 Rh3 Rg8 h8B Ngh1 Bc3 Rg5 Bb4 Rf5 Rc3 Qd1 Rc4 g1R Rh8 Qf1 Rh7 Rg3 Rb1 Qg8 d8Q a1N d7 Nc2 Kd6 Qg4 Qdg8 Ne1 d8Q Na2 Qdf8 Bd7 Qa8 Ng2 Rbc1 Qg1 Rf1 Be6 Kc6 Bd5+ Kd7 Bdf3 Kc8 Qh3 Kb8 Bh5 Rd1 Qf1 Rd6 Qe1 Rf6 Qg4 Qgf8 Qg8 Qc8 Qe8 Qd8 Qd7 Qdg8 Qc8+
2bK4/2P1B3/3r1QQN/B1q1PP2/k2qNbB1/1b1q3R/1n2n2r/1b1QnR2 w - - 0 1 legal: proof: d4 e5 b4 exd4 g4 b5 a4 f5 axb5 c5 Ra6 h5 gxh5 f4 Rf6 c4 Qd3 cxd3 Rxf4 Nc6 Rf7 Nb8 Kd2 g5 h4 a5 f4 d5 e4 g4 c4 a4 e5 a3 b6 a2 h6 a1N b5 g3 c5 g2 h5 Be7 c6 Na6 c7 Kd7 h7 Ra7 h6 Nb4 b7 Nf6 b8Q Nac2 b6 Kc6 b7 Kb5 Rh3 Ne1 Be2 Ra6 Bg4 Rd6 Ne2 g1Q Ng3 Nh5 Nf5 Bg5 Nc3+ Ka5 Bb2 Ng3 Ne4 Bd7 Bc3 Ne2 Qa7+ Kb5 Qb6+ Ka4 b8Q Qe7 Qd8 Qf8 Kd1 d2 Rf6 Nbd3 Ba5 Nf3+ Kc2 Nb2 Qa6 Qe3 Qd3 Qg1 Qe8 Qf2 Qg6 d1B+ Kb1 Bc2+ Ka2 Qe3 Qd1 d3 Rf7 d2 Rf6 Rg8 h8B d4 h7 d3 Nh6 Qd4 Rf5 Qe7 Bf6 Ne1 h8Q Re8 Qhg7 Rh8 Q7f7 Qf8 Be7 Rh7 Qff6 Rh8 Qc1 d1B Qa1 d2 Qb1 Kb5 Ka3 Bb3 Qa1 Bdc2 Qc1 d1Q Qb1 Qd5 Qc1 Q1d3 Qd1 Kc6 Kb4 Bb1 Bb6 Q5d4+ Ka5 Qf3 Ka6 Qfd3+ Ka7 Kb5 Kb7 Ka4 Ba5 Be8 Kc8 Bc6+ Qe8 Bd7+ Kd8 Rh7 Nf7 Rh5 Nh6 Rh4 Re3 Rh2 Rh3 Qf7 Qg8 Qfd5 Qgg6 Q5c5 Rf3 Bh4 Rh5 Bg5 f5 Bc1 Rf1 Bf4 Rh3 Bc8+
3R3Q/PRbN2Kb/1n1NP1Q1/1q6/6N1/2b1BPqr/3Br1q1/1Qrk2nb w - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 b4 axb4 g4 d5 cxd5 e5 gxh5 Ra5 Bg2 Nd7 dxe5 Ra3 e6 Ra8 e5 Nb8 Be4 fxe4 Kd2 Ke7 Ke3 b5 Kd4 c5+ Ke3 g5 a4 g4 Kf4 g3 Kf5 g2 Kg6 e3 h4 b3 a5 b2 a6 e2 h6 e1B a7 b4 h7 c4 h5 b3 h6 c3 Be3 c2 Ra5 c1R Ra3 Nf6 Nh3 g1Q+ Qg4 Ne4 Nc3 b1Q Nb5 b2 Nd6 Bc3 Rb3 Qc7 Rb7 Qg2 Rd1 Nd7 f3 Ng3+ Qe4 Nb6 Nf2 Ne2+ Ng4 Ng1 Rd2 Bg7 Rd4 Re8 h8Q Qd3 h7 b1B Qf5 Qb5 Qg8 Bh6 h8B Bf4 Kg7 Bd7 Qc2 Bh2 Qa2 Bh7 Qb1 Rac8 Ne4 Qb8 Nf6 Rc4 Rd1 Re4 Bd2 Re2 Be3 Qc7 Rd2 Bc8 Nd7 Rf8 Rd4 Rf5 Rd3 Rh5 Rd1 Rh3 Qf7+ Kd8 Qfg6 Ke7 d6+ Kd8 Kf6 Qbc6 Nc5 Rh6 Rd4 Qb5 Rd5 Qh1 Nf2 Bb2 Rd2 Bd7 e7+ Kc8 e8Q+ Qd8+ Kf7 Bh3 e6 Bg2 Qg7 Rh3 Ng4 Bf6 Qc6+ Qc7+ d7+ Kd8 Qce4 Qd6 Rb8+ Kc7 Qeg6 Kc6 Rb7 Bd4 d8N+ Kd5 Rd3 Kc4 Qf8 Bb2 Bc3 Ba1 Be1 Bc3 Qh8 Bhe5 Rd2 Qh2 Rd5 Bh1 B1d2 Qg2 Rd3 Qc7+ Kf8 Bh2 Nf7 Qe5 Rd8 Qg5 Nf2 Bc7 Nd7 Qh4 Ng4 Qhg3 Qbe4+ Kb3 Nd6 Qd3 Qb4+ Kc2 Qb1+ Kd1 Kf7 Qb5 Kf8 Ba5 Kg7 Bc3+
2B2QRR/r1bn1nb1/qB3PN1/P3N2n/1QbP4/2n2K2/1N6/2bn1Rrk w - - 0 1 legal: proof: e4 d5 b4 a5 c3 d4 cxd4 axb4 g4 c5 d3 f5 exf5 h5 gxh5 c4 Bg5 cxd3 Bf4 Qd6 Bc1 Qd8 h4 Kd7 a4 Kc6 f4 Kd5 Kf2 Ke4 h6 b5 h7 g5 h5 e5 a5 d2 f6 g4 h6 g3+ Ke2 b3 f5 b2 f7 g2 f6 b4 Qe1 d1N Bd2 b3 Bb4 Bg7 f8Q Be6 Qg3 Ra7 Be7 Bc4+ Kd2 Nd7 Qh3 Qa8 Ne2 g1B Ng3+ Kf3 Qe6 e4 Na3 Bh2 Nh5 Bc7 Qd6 b1N+ Ke1 b2 Bh3 e3 Bd8 e2 Rg1 Qb7 Qb4 Qa6 Nf4 Nd2 Nd3 b1N Nb2 Nbc3 Rb1 Nde4 Rg5 Bf4 Bb6 Ng3 Be6 Kg2 Rg6 Bd3 Nac4 Bc7 Ne5 Kh1 Bh3 Nh5 Ra1 Nc5 Bc8 Nd7 Rg3 Bc4 Rg4 Ne3 Kf2+ e1B+ Kf3 Ned1 Rg6 Bd2 Rg3 Ne7 Rg4 Rg8 h8R Nc6 h7 Nd8 Rc1 Nf7 Rg6 Kh2 Rg5 Nf2 Rf1 Nfd1 Qfe7 Bh6 Rg6 Rg7 Rf8 Bc1 h8N Bhg5 Rh6 Bge3 Rg8 Rg1 Nhg6 Kh1 Rhh8 Bh6 Qf8 Bg7
Q1b1q3/R2b2P1/N2bRPB1/4nn2/n3Q1r1/1r1nPB2/r1K1Nk2/1QB4r w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 h4 d5 cxd5 g5 d4 gxh4 Kd2 f4 dxe5 f3 e3 Bg7 Qe1 Bf8 Qe2 fxe2 f4 Kd7 b4 e1N g4 c5 g5 a5 d6 Ke6 b6 Kf5 d7 Kg4 b7 Kg3 f5 h5 b5 c4 e6 h3 g6 h2 e7 a4 e8B h4 g7 h3 f6 a3 b6 c3+ Kd1 a2 Nd2 c2+ Ke2 Nd3 Nb3 Nc5 Kd2 Ra3 Bg2 Bd6 Bg6 Rh4 Kc3 Qe8 d8Q Kf2 Bf3 Ne7 Ne2 Nbd7 b8Q Ne5 b7 Nf5 Rd1 h1B Qa8 h2 b8Q Rg4 Qe7 Na4+ Kd2 Bg2 Nc5 h1R Na6 Bh3 Qb1 Rb3 Qeb7 Bd7 Qe4 Bc8 Bb2 c1N Kc2 Bd7 Rd5 Ncd3 Bc1 Bf8 Rd6 Be7 Re6 Bd6 Qb2 Bc8 Rb1 a1R Qa2 Ra3 Rb7 Rb3 Qb1 Ra2+ Bb2 Rgg1 Ra7 Nh4 Ree7 Bhd7 Re6 Nf5 Re7 Ra1 Re6 Rg4 Bc1 Ra2+
bqq1B1K1/Q1R2BP1/rn5k/P1Qr1b1b/q4R2/n6q/Q1N2P2/2Nb1R2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 Bg7 h5 Bh6 Bb2 Bf8 g4 Kd7 h6 Ra6 Bf6 Bg7 hxg7 Nh6 g8B Ra8 Be5 Ra6 Bg3 Ra8 Bh4 gxh4 g5 Ng4 g6 Nf6 g7 Ke8 Ke2 b5 Ke3 e5 d4 c5 a4 h5 a5 b3 d6 b4 d5 c4 Bh7 Kf7 d7 c3 d6 c2 Nh3 c1Q+ Kf3 b2 Be2 b3 Rf1 e4+ Kg2 e3 Kf3 Ne4 Kf4 Nd2 Ke5 Ra6 f6 Nc4+ Kf5 Na3 Bb5 e2 Bc6 e1Q Bg2 Qb4 Ng1 h3 Qc2 h2 Ne2 h1Q Bc6 h4 Qc5 h3 Bg6+ Kg8 Ke6 h2 Bf7+ Kh7 Ra2 Kh6 Bb5 Qcf4 Nc1 Qa4 Qa7 Bb7 Bc6 Qc7 d8Q Ba8 d7 Qc8 Qdb6 Rd8 Qc5 Qhf3 Ke7 h1B Ke6 Qh3+ Ke7 Nc4 Na3 b1B Nc2 b2 Ra3 Ba2 Rc3 b1B Bb5 Bhf3 Bc6 Rf8 d8Q Bd1 Qdd5 Na3 Bce8 Nd7 Qb3 Qfb8 Qb2 B2d5 Qa2 Rh8 Rc4 Rh7 Rf4 Nb6 Kf8 B5f3 Kg8 Qh5 Bg6 Qhg4 f7 Qh3 f8R Bg4 R8f7 Bh5 Na1 Bf5 Nc2 Kg5 Rc7 Rh6 Bh7 Rd6 Bg6 Kh6 Bf7 Rd5
bb1nK3/3b3r/1Pb1P1Nb/Q2n1BBn/1N2P3/1k2BQRb/3r2Q1/Rb6 w - - 0 1 illegal: No possible last move, all moves rejected
R1R2b2/P2qnb2/2n3b1/3N2BN/k3n1Pn/1q2b1qP/1Rb2Q2/1N1Q1K1B w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 g5 h3 a5 Qc2 axb4 Qb3 Qd7 Qd1 Qd8 Qa4+ b5 Qa3 g4 Qb3 g3 Qd1 Ra6 Rh2 Rg6 Rh1 Rg4 hxg4 Qd7 Rh3 Qe7 Rh1 Qd8 Na3 h5 Qa4 h4 Nb1 h3 Qc2 h2 Qd1 Rh3 gxh3 Bf5 Nf3 Bd7 Ng1 Bc8 e4 Kd7 a4 c5 d4 f5 a5 g2 a6 f3 a7 f4 e5 b3 d6 Kc6 d7 b2 e6 b4 e7 f2+ Ke2 Kb5 e8Q c4 d5 c3 d6 f3+ Kd3 c2 Ra3 b3 Ra1 Nc6 Bg5 c1B Qde1 Be3 Qd1 Nge7 Na3+ Ka4 Ne2 g1N Bg2 f1B Rb1 f2 Qf7 Nf3 Rg1 Qe8 d8N h1N d7 Nh4 Ne6 Ng3 d8R Ne4 Nc7 Bf5 Ra8 Qd7+ Nd5 Bg6 Bh1 Bg2 Qf6 f1Q Qf2 Qe1 Nf4 Bf7 Rc1 b1Q+ Rc2 b2 Nh5 Qa2 Nb1 Qb3+ Rc3 Bf3 Rg2 Qg1 Rh2 Qg3 Rg2 Bg6 Rh2 Bg2 Ke2 Bf3+ Kf1 Bf7 Na3 b1B Rg2 Bc2 Nb1 Nd6 Rh2 Bfe4 Rc5 Beg6 Rg2 Nb8 Rc8 Nbc6 Qf6 Bcf5 Rb2 Bc2 Qf2 Ne4
Kr1RNB1B/1NQq4/b1B2nN1/1Q6/2R3p1/rq2nnPr/P2P1k2/q1b5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 g4 Bd3 Qd6 Be2 Qf4 Bf1 Qg5 hxg5 Kd8 Rh3 Kd7 Rh1 Ke8 Ke2 Kd7 Kd3 Kd6 Kd4 e5+ Kc4 c5 Kb5 h5 Kb6 h4 f4 b3 g6 c4 g3 b2 f6 c3 f5 h3 f7 e4 f6 Ke5 d6 c2 d7 h2 d8N e3 g7 Ke4 Nf3 e2 Nd4 e1N N4e6 Ra3 Nc7 Rh3 Bb5 Na6 Ka7 Nf3 Ne8 Nc7+ Kb8 b6 Qf1 Ba6 Bc6+ Nd5 Ka8 b5 Nb7 b4 Qb5 b3 Rf1 Be7 f8B h1Q f7 Nf6 g8Q Qg1 Qg5 Qd4 Qc5 Kd3 Nc3 b1Q Bb2 c1R Ne2 Ne3 Bc3 Qd5 Nf4+ Ke4 Bd4 b2 Ng6 Qc2 Qb6 b1Q Qc7 Qcb3 Bb2 Rc3 Qh5 Qe1 Rc1 Rc4 Rc2 Qa1 Qg5 Rc5 Rc4+ Kd3 Rfc1 Ke2 R1c3 Kf2 Rd3 Qe6 Rd8 Qd7 Qd5 Ne4 Bh8 Nf6 Ra4 Rc2 Qb5 Bc5 Rb4 Bd4 Rc4 Bb2 Bh6 Bc1 f8Q Rc3 Qfb4 Rd3 Bf8 Rd6 Bd5 Rc6 Qbd6 Rc5 Qb8 Rc7 Bc6 Rc8 Qc7 Rxb8+
4q1N1/QR1Pnrq1/q1R2r1Q/1K1b2p1/1P1Nk2P/5nb1/1BNr2n1/2Q3B1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 g4 Bd7 f4 gxf4 g5 Be6 g6 Bc8 g7 Kd7 Be2 Ke8 Bh5+ Kd7 Bg6 hxg6 Ra4 Ke8 Ra6 Nf6 Ra1 Ng8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 a5 b4 c5 d4+ Ke4 f6 e5 f7 f3 b6 g5 d6 f2 d5 f1R b7 a4 d7 a3 d6 a2 Na3 Ne7 g8N Rf6 Rh2 Rh7 Qd2 Qe8 d8B Nd7 b8Q Bb7 Bb6 Bd5+ Kb5 c4 Qa7 c3 Bd4 c2 Qa6 Rd8 Rb1 a1Q Bcb2 c1Q Ne2 Qc7 Bg1 Bg7 f8Q Qc8 Qa5 Qa6+ Ka4 Bh8 Rf1 Rhf7 Qh6 Rf3 Rc1 Ba8 Qe6 Qb6 Qf4+ Kd3 Rc7 e4 Bf6 e3 Bc3 Be5 Qa7 Qa6+ Kb3 Be4 Rb7 Rf1 Qh6 Rf3 Qf5 Bg3 Qfc5 Ne5 Bd4 R3f4 Qc1 Nf3 Bg7 Qf6 Bh8 Qg6 Bb2 R4f6 Rg2 Qg7 Rh2 Rc8 d7 Rc2 Nd4 e2 Rf2 e1N Re2 Bg6 Re6 Rd2 Nac2 Be4 Rd6 Ng2 Rc6 Qb6 Ka4 Bd5 Na3 Ke4 Nac2 Qbd8 Kb5 Qa8 Qc5 Qa2 Qa7 Qa6+
b3r2n/4RQb1/1R1rP1bK/Qq6/NB1r1Q1b/3b4/1pBPP1k1/2N1Rn2 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 cxd5 e5 fxe5 b6 a4 b5 axb5 axb4 Kf2 Kd7 Ke3 c5 Kf4 f5 g4 h5 e6+ Kd6 g5 c4 b6 b3 g6 h3 b7 h2 g7 c3 Nf3 h4 Na3 h3 Bb2 c2 Rb1 c1B Ng1 Ne7 Kg5 f4 g8R f3 Bc3 f2 Rg7 Nf5+ Bf6 Ng3 Qe1 Ra6 Nf3 Qd7 Rg1 h1B Rf7 h2 Ra1 Bb2 Bg2 f1R Ra2 Bg7 Nd4 Rf4 Be4 Nf1 Nb1 Nc6 Re7 Re8 Nc3 Ne5 Na4 Qb5 Qf2 Ng6 Bc2 Nh8 Qf3 Bc3 Rb2 Ba5 Qh5 Bd8 Qf7 Be4 Rb1 h1B b8Q+ Bc7 Re1 Bg6 Rg4 b2 Nb3 Bhe4 Nc1 Bd3 Bc3 Bb7 Bb4+ Ke5 d6 Bd8 d7+ Rd6 Qc7 Rd4 Qa5 Bc7 d8Q Ba8 Qb8 Bd8 Rg3 Bf6+ Kh6 Kf4 Rf3+ Kg4 Rf5 Kh3 Rc5 Kh2 Rc6 Kg2 Rb6 Bh4 Rd7 Bdf6 Re7 Rd7 Qe5 R7d6 Qf4 Bg7+
Q5rk/Q2qBnbN/1P1P3b/1r1R1N2/1Rp1P1b1/4nQR1/4br1B/2K4b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 a6 b4 Kd7 b6 Rh6 b7 Rh8 b5 Nh6 b6 Ke7 Bh3 Ng8 Bf5 Ke8 Bd3 Qf6 Bc4 Qd8 Bb5+ axb5 e4 c5 h4 g5 d4 f5 Kd2 Kf7 h6 c4 h7 Kg7 h5 b4 d6 f3 d5 b3 d7 b2 d6 f4 Kc2 f2 Ne2 f1B Ra2 g4 Nd2 b1R Nd4 g3 N2f3 g2 Be3 g1B Rh3 Nf6 Rb2 Be2 Ng5 f3 Rg3 f2 Rb4 f1B Bf4 Rg8 h8R Nc6 b8Q Ne5 Nh7+ Nfg4 Qa7 Bg2 Qf1 Rb8 Qf3 Nf7 Kd2 Qe8 d8B Qd7 Be7 Bh1 Kc2 Be3 h6+ Kg6 Nf5 Bg7 Be5 Bg5 Bf4 Ne3+ Kd2 Rb2+ Kc1 Rb7 Rg4 Rc7 Bh2 Rc5 Rg3 Rd5 Nf6 Rb5 h7 Rd8 Re8 Ra2 h8Q Rd2 Rh3 B5h6 Nh7 Ra2 Bf6 Rd2 Re5 Rg8 Rc5 Bd1 Re5 Rf2 Rd5 Be2 Be7 Qd8 Nd4 Bg4 Rg3 Qd7 Nf5 Bf8 Qha1 Bfg7 Q1a5 Be5 Nd4 Kg7 Nf5+ Kh8 Qa8 Bd4 Q5a7 Bdg7
2b1N1r1/bQ6/1p3P2/2rQ4/kPn2N1R/n3rPRb/NRqn3K/2b3BB w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 d5 g4 c5 gxh5 a4 Qb3 axb3 d4 cxd4 cxd5 Rh6 Ba3 Rh7 Bc1 Rh8 h4 Kd7 a4 e5 f3 g5 Kf2 b2 Kg2 e4 h6 e3 h7 e2 d6 Kc6 h5 e1R h6 d3 a5 Kb5 a6 g4 d7 g3 a7 Qc7 d8Q Nf6 Be3 Nbd7 Ne2 d2 Ra2 d1B Rh4 Rg8 h8Q Nb6 h7 Qc2 Qg7 Ne4 h8R Nc4 f6 Ned2 Nf4 Be2 Bg1 Rc1 Kh1 g2+ Kh2 Bc5 Rh3 Be3 Rg3 Bd3 Qd6 Bdf5 Rh4 Bh3 Qh7 Rb8 a8N Ba7 Qdd3 b6 Qb7 Re1 Qde4 Re3 Qd4 Rg5 Qde4 Rc5 Qed5 Ra3 Nc7+ Ka4 Ne8 Ra8 Be3 g1B+ Kh1 Qh7 Bg2 Qc2 Bd4 Be3 Kh2 Kb3 Nc3 b1N Bh1 Rb8 Nce2 Ka4 Rb2 Rb3 Nc1 Nba3 Nfe2 Bh6 Bg1 Re3 Nf4 Bcf5 Nc7 Rg8 Ne8 Bc8 Na2 Re2+ Ng2 Ne4 Bd4 Bc1 Bf2 Re1 Bg1 Ned2 Nf4 Re3
kN6/n2Rb3/1Kbb3R/nr1bQ3/QP2PB1R/br1B4/p1P1qN1q/7B w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 h4 f5 g4 g5 Ra5 fxg4 Ra1 g3 Ra3 g4 Ra1 Qg5 hxg5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 Kd8 Kd3 Kc7 Kc4 Kb7 b3 d5+ Kd3 a5 e6 h5 b6 g2 g6 h4 e3 h3 e7 a4 e8R g3 g7 a3 Bb2 h2 Nf3 g1B Nh4 g2 Qg4 a2 Re4 Bd6 Qe6 Ra3 Nc3 Rh5 Qg4 Ne7 g8B Ka8 Bc1 Nbc6 Nf5 Na7 Qg7 Nec6 Qd7 Na5 Nd1 Bb7 Rh4 Bc6 Ne7 Bf2 Bh7 g1B Be4 Rg5 Rh6 Bh4 Nf2 Re5 Bd2 Bg5 Rd1 Rf5 Ng8 Bge7 Nf6 Rh5 Qg4 Rf5 Nd7 Rg5 Ke2 d3+ Kf3 d4 Nb8 Rh5 b4 Rc5 Qd7 Rb3 Rh4 Bd5 Qa4 Bc6 Bc1 d2 Bd5 d3 Ke4 Nc4 Kd4 Na5 Re1 d1Q Re2 Bd8 Rd2 Qh5 Rd1 d2 Bd3 Qe2 Bf3 Bg5 e4 Bge7 Re1 d1B Bf4 Qf1 Bg2 Bh5 Rd1 Bf7 Rh6 Qe2 Bf3 Nc8 b7+ Ka7 Rf6 Rg5 Rh6 Bfe8 Nd7 Bf7 Bc4 Bb8 Bg2 Re3 Nh3 Rb3+ Be3 Bf2 Bb5 Be1 Nf2 Bd2 Bf4 Bc1 Bf3 Ba3 Ba6 Bd8 Rd2 Be5+ Kc5 Be7+ Rdd6 Rf5 Bd3 Bc4 Ra1 h1Q b8Q+ Ka6 Qbb5+ Ka7 Nb8 Ka8 Rd1 Qh3 Rh1 Na7 Kb6 Rh5 Rd7 B5d6 Qg5 Be6 Qf6 Rc5 Qe5 Bed5 Rh2 Qg3 R2h4 Qh2 Bh1 Rb5+
R3KB2/2qrR2P/1bB1p1P1/1n3r2/3R1B1Q/Pq3q1N/kq2NQ1n/1b5q w - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 f5 exf5 h6 fxg5 h5 g4 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 b5 h4 b3 d4+ Kb4 h5 c5 h6 g3 h7 g2 d6 c4 f6 c3 f7 b2 d7 c2 Ke6 Ra7 a3+ Kb3 g6 b4 d5 Nc6 d6 Nf6 Be2 Ng4 Bf1 Qc7 Rh6 Nd4+ Kd5 Nb5 Ke6 Nh2 Nc3 b1Q Nh3 g1Q Bg2 Qf1 Qe1 Qb2 Bf4 c1Q Rh4 Qf3 Qf2 Qh1 Ne2 Rb7 Re1 Ka2 Rg4 b3 Rh4 Bg7 f8B Bd4 Kf7 Bb6 d8R Bf5 d7 Bb1 Ra8 Rg8 d8Q e6+ Ke8 Rg7 Rd1 Rf7 Rd7 Rf5 Re7 Qbc1 Rg4 b2 Qdd4 Qce3 Qa4 Qb3 Qb4 Bd3 Qbd4 b1Q Qf6 Q1b2 Q6h4 Qe3 Bc6 Qef3 Be5 Bb1 Rd4 Qd6 Bg3 Rd7 Bf4 Qc7
q5NB/3PQr2/1r3N2/5k1P/KbbP1p1Q/nQ1q3n/N1rB2R1/rr2R3 w - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 d5 axb5 h6 cxd5 h5 Bh3 exf4 gxf5 Ke7 Bg4 hxg4 Qc2 Kd7 Qd1 Ke8 e4 Ke7 h4 Kf6 b4 c5 d4 g5 Kd2 a5 Kc3 a4 d6 a3 Kb3 g3 e5+ Kg7 h5 g4 d7 a2 b6 g2 e6 Kf6 e7 g3 b5 Ra6 b7 Nh6 b6 Nc6 b8Q Na5+ Ka4 c4 b7 c3 Rh2 c2 Nf3 g1Q Ng5 g2 Qg4 Qd1 Nf7 g1R Rg2 Rh7 Nc3 Qd3 Bd2 c1R Qh3 Ng4 Nh6 Kg5 e8N Rc2 f6 Be7 Rb1 a1R+ Na2 Bc5 Ng8 Kf5 Qh2 Nf2 Qh4 Nh3 f7 Re1 f8B Rf7 Nef6 Ba3 Qd6 Nc4+ Kb5 Rc6 b8Q Ba6+ Ka4 Rg1 Qb6 Qa8 Qb3 Bb4 Bg7 Na3 Qe7 Rb6 Bh8 Rh1 Re1 Rf1 Ree2 Rfb1 Re1 Bc4#
1n5R/2bN4/2R1Qrq1/1n2rq2/R1B1Bb1P/1Q1K1r2/Np3PPB/1rq1k3 w - - 0 1 illegal: No extended proof kernel
2R5/1B1bqQB1/n1Q2Kbn/2N4N/nr1Prp2/2k1P3/3NRP2/b2Qqn2 w - - 0 1 legal: proof: b4 b5 d4 c5 a4 h5 axb5 e5 g4 e4 gxh5 d6 Qd3 exd3 bxc5 d5 c4 dxc4 Kd2 Kd7 Kc3 Ke6 h4 Kd5 b6 f5 e3 g5 h6 a5 b7 a4 h5 d2 c6 d1B c7 f4 h7 a3 h6 a2 Nd2 g4 Bh3 g3 Ne2 g2 Ba3 g1Q Rc1 a1N Ng3 Bc2 Nh5 Bd7 c8Q Na6 b8N Qe1 Bg2+ Be4 Be7 Nb3 Bf6 Ba3 Bg7 Qe7 Qe8 Nbc5 Qf7+ Be6 Nd7 Rb8 Rc2 Rb6 Rg1 Rb4 Bh1 Bc1 Rg2 Bg6 Rg5+ Kd6 Bb7 Bh3 Ra2 Ba3 Rf5 Na4+ Kc2 c3 Kd3 Bb2 Nc5 Ba1 Rb2 Qd7 Ke4 c2 Ra2 c1N Rc2 Kc7 Ke5 Kb6 Rf6+ Ka5 Rc6 Bhf5 Rc8 Ne2 Rb2 Ng3 Rc2 Ne7 Kf6 Re8 h8Q Nf1 h7 Qd8 Qhf8 Bd7 h8Q Nf5+ Q8e7 Qc7 Qd6 Re4 Qc6 Nh6 Ra2 Rb2 Qhe8 Kb4 Qee6 Kc3 Qg4 Rb4 Qd1 Nb2 Nc4 Na4 Re2 Qa5 Nd2 Qd8+ Qe7 Qf8+ Qf7 Qe7+
4b2B/2n4r/Bq5N/K2R1P1n/Bp2bkPR/qN6/2PbQrR1/qq5Q w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 Kf7 g4 h5 f4 d5 f6 Kg6 f7 e5 b6 h4 b7 h3 Ra2 h2 Bg2 e4 Ne2 d3 Nd4 Rh7 Bb2 Bd7 Bf1 Be8 Ra5 Nf6 Qe2 Na6 b8Q Bh6 f8R Qb6 Qb7 Nh5 Nf5 d4 Rd5 Nc7 Rg1 h1Q Rh8 Qf3 Rg2 e3+ Kc1 Rb8 Nd2 Qh3 Nb3 d2+ Kb1 d1B Ka2 d3 Ba1 d2 Kb2 Kf7 g6+ Kf6 g7 Ra8 g8B Ra6 Qf2 Bf3 Qe2 d1Q Bf7 Bg5 Nh6 Be4 f5 Ra3 Be6 Bf4 Qa8 Kg5 Bd7 Qg3 Ba4 Qde1 Qea6 e2 Qc6 Qd1 Qca8 e1Q Qe2 Qf3 Nd4 Qfg3 Qb8 Rg7 Qf2 Na8 Bd7 Ra6 Ng8 Ra4 Ba6 Ra3 Qe2 Nf6 Rh4 Bd2 Nh6 Rf3 Bc6 Qh3 Qh2 Rh7 Qh1 Nc7 Ka2 Qg1 Bc3 Rf2 Kb3 Qdf1 Ka4 Kf4 Bd7 Nh5 Bdb5 Qf6 Ka5 Qa1+ Ba4 Qgb1 Bb2 Qha3 Nb3 Qd6 Bh8 Qb6+
3q4/q1N1QQr1/1nqn4/r4p2/1R1PB3/1nN1kB2/PPB5/K1nbbRR1 w - - 0 1 legal: proof: h4 e5 c4 a5 f4 exf4 d3 d5 cxd5 g5 hxg5 b6 Qa4+ Nc6 Be3 Bf5 Qxa5 Nb8 Bc5 bxc5 Qa7 Bc8 Kd1 Kd7 Kc2 Kd6 g4 Ke5 e4 Kd4 g6 h5 e5 h4 e6 f3 g7 h3 g5 f2 d6 h2 d7 Rh7 e7 Qe8 d8Q+ Nd7 g6 Nf6 g8B Ne4 Be2 f1Q g7 Qf2 Qb6 Ra5 Qc6 c4 Na3 c3 Qe6 c5 Rf1 c4 Kb1 c2+ Ka1 c3 Qc7 Qd8 e8B f6 Bg6 Bb4 Qe8 Ba6 Bd5 Nd6 g8R Re7 Rh8 Rg7 Qf7 Bb5 Bg4 Ba4 Rh4 Qe3 Bc6 Qee7 Bd1+ Ke3 Ne2 Nb6 Rhg1 h1Q Nb5 f5 Bh5 Qd5 Bf3 Qc5 Bcd5 Qc6 Qb7 Qec7 Rc4 Qcb8 d4 Qa7 Qbc7 c1N Qcd7 c2 Bde4 Nd3 Qde7 c1N Nc7 Be1 Nc3 Nc5 Rb4 Bc2 Bde2 Bb3 B2d3 Bd1 Bc2 N5b3+
1b4n1/3nN3/2Q5/3pP2q/1qbRP2R/Nr1PBk2/rR2b2B/KBQb1q2 w - - 0 1 illegal: No possible last move
2b1r1q1/3k1KRQ/b5P1/2P5/nB2QRN1/n2rNnB1/1Pq1n1pQ/1b4B1 w - - 0 1 legal: proof: f4 b5 a4 c5 axb5 g5 fxg5 c4 e3 c3 Ke2 cxd2 g4 d5 g6 h5 g5 d4 Bh3 d3+ Kf1 Bg7 Bg4 Bd4 exd4 hxg4 g7 f5 Kf2 e5 Kg3 a5 h4 e4 Kf4 g3 Ke5 g2 c4 f4 d5 a4 g6 a3 d6 e3 b6 a2 c5 e2 b7 e1N h5 f3 h6 f2 h7 f1B d7+ Ke7 Na3 Ra7 Nc2 Ra3 Qe2 d1B Rh4 d2 Nf3 Nf6 g8Q Nd5 Nh2 Nb6 Rf4 Nf3+ Kf5+ Re3 Ng4 Nc6 Qd3 Qe8 Qe4+ Kd8 Kf6 Ncd4 Qg7 Bd3 Qh6 B1e2 Qh2 d1Q Kg7 Rf8 h8Q Bf1 Bd2 Qe2 Rd1 a1N Q8h7 Na4 Bb4 Ba6 Rd2 Rb3 Nce3 Nac2 Rd1 Na3 Rd3 Qf2 Rd2 Bfd3 Rd1 Kc7 d8B+ Kd7 Be7 Bb1 Bh4 Qc2 Bf2 Kc7 Bg1 Ne2 Rd8 Rd3 Rd7+ Kb8 Rdf7 Rh8 Kf6 Qg8 Ke7 Kc7 Rg7 Qd8+ Kf7 Kd7 b8B Rg8 Rf5 Rh8 Bg3 Qh4 Qh5 Re8 Rf4 Qh3 Qh8 Qh7 Qg8 Qh8 Qgh7 Qg8+
QB2b2Q/2R4r/n3PN2/B2PP3/2r2np1/2bNqrk1/BK3q2/rbR3N1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 f4 d5 cxd5 e5 fxe5 b6 a4 b5 axb5 axb4 e6 Qf6 h4 g3 d6 g5 e4 c5 d4 b3 Kd2 c4 Kc3 b2 b6 g4 d7+ Ke7 d8N Kd6 b7 g2 h5 Ne7 h6 Bd7 h7 Ng6 Nh3 g1Q Na3 Qe3+ Qd3 Be8 Nc2 Qff4 d5 Ke5 Rg1 f5 Ra7 b1B Ne1 Bb4+ Kb2 Qh2+ Bd2 f4 Qb3 f3 Qa4 f2 Bd3 f1R Nc6+ Kd6 Qa6 Rf3 Ne7+ Ke5 Ng8 Qhf2 Nf6 Ba5 Rf1 Bb4 Ng1 Kf4 e5 Kg3 Bc2 Nf4 Nd3 Ba5 Bb3 c3+ Kc1 c2 Kb2 c1R Rd1 Rf8 h8Q Rc4 Rc1 Rf7 Qc6 Rh7 Qa4 Nd7 b8B Nc5 Rc7 Bb4 Qc6 Ra1 Qa8 Na6 Ba2 Bd6 Rc2 Bf8 Ba5 Bb4 Ng8 Be1 Nf6 Bd2 Rc1 Bc3+
nQ1K2n1/1q1b2P1/1k3r1N/3R1nQ1/2rn3P/R3r1Pq/pBB4N/1B4Rb w - - 0 1 legal: proof: f4 b5 a4 c5 axb5 g5 fxg5 c4 e3 c3 Ke2 cxd2 g3 d5 Nf3 h5 Nh4 d4 Kf2 d3 Qf3 Bg7 Qg2 Bd4 Nf3 h4 exd4 h3 Ng1 hxg2 Kf3 Kd7 Kf4 Kc7 Ke5 d1B h4 a5 b4 f5 c4 f4 d5 e6 b6+ Kb7 c5 d2 b5 a4 g6 f3 d6 a3 g7 f2 d7 Bb3 Kd6 d1Q+ Bd3 f1N Nc3 e5 Nf3 g1N Ne4 Ne3 Nf2 e4 Nh2 Nf3 Rg1 Nd4 Bb2 Ra6 Bb1 Qf1 Nfg4 Bd5 Nh6 Qh3 Bc2 Qg5 d8Q Nd7 Qe7 Qgg4 Qg5 Qf3 Rad1 a2 c6+ Ka8 Kc7 Nef5 b7+ Ka7 b8R e3 Rd2 e2 Kd8 e1R c7 Re3 Ra8+ Kb6 Rd3 Bdb7 Ra3 Ra4 Ra5 Rc4 Bb1 Ba8 Bc2 Qb7 Bb1 Kc5 b6+ Kc6 Rd5 Rh7 Nf7 Rh6 Bc2 Rf6 Nh6 Qa6 b7 Nb6 b8Q Bd7 c8B Bb7 Rda5 Na8 Rd5 Kb6 Bb1 Be8 Be6 Bd7 Bf7 Qa7 Bh5 Qa6 Bd1 Qb5 Bdc2 Qa6 Qc8 Bbc6 Qb8+ Qb7 Re5 Bf3 Rd5 Bh1
Q1Br4/1b1b1kP1/4RPn1/Pq1B1p2/4N3/qr1q1Q1r/2RK1N1q/2n2B1R w - - 0 1 legal: proof: e4 c5 d4 g5 dxc5 a5 b4 axb4 f4 Nf6 fxg5 Ng8 e5 Ra4 Ba6 Ra5 Bf1 Ra8 g4 f5 g6 h6 g5 Bg7 Bd2 Bf6 exf6 Qa5 g7 Qb6 g6 Qd8 Bg5 hxg5 c4 e5 a4 d5 h4 b5 h5 b3 a5 e4 h6 b4 c6 e3 h7 g4 c7 b2 c5 b3 c6 e2 Bh3 g3 Ra4 d4 Ra3 d3 Qc2 g2 Qc3 d2+ Kf2 e1Q+ Kf3 d1B+ Ne2 g1Q Ra2 Qe7 Ra3 Bd7 c8B Qh2 c7 Nc6 Ra2 Nb4 Nd2 b1R Ne4 b2 Ke3 Qh4 Nc1 Nd3 Bf1 Bf3 Qb3 Bg2 Kd2 Qa3 Qd5 Ne7 g8B Qg4 g7 Ng6 Qc6 Rb8 Bd5 Rb3 Qb7 Ra1 Qc6 b1Q Rc2 Rf8 h8Q Ra2 Nc5 Qc4 Ne4 Qbb2 Qh3 Rh8 Qg3 Rh3 Qa8 Qe5 Qf3 Ra1 Na2 Nc1 Nac3 Rab1 Nd1 Ra1 Bc6 Qeb5 Ndf2 Kf7 B6b7 Qca4 Rc6 Qac4 Re6 Ra2+ Kd1 Rc2 Bd5 Rcc3 Kd2 Rh8 Ba6 Rd8 c8R Re3 Rc5 Rec3 Bc8 Re3 Qe2 Rh3 Qf3 Qab4+ Qc3 Qb6 Bdb7 Qa3 Ng3 Qcb4 Bc6 Bd5 Ne4 Q6b5 B6b7 Q4a4 Qf3 B5c6 Rc2 Qac4 Ba6 Qbc5 Bb5 Bb7 Bc6 Q5b5 Bd5 Qd3+
B1K1nR2/2nPr1kP/2p1bq1b/2N3NB/8/1R2Qn2/1N3bbP/Q1q2Qr1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 f4 b5 a4 e5 c4 exf4 cxd5 Ra6 Ba3 Bb7 axb5 Bc8 b6 Ra7 b5 Ra8 Bb4 axb4 Kf2 g5 Kf3 f5 e4 Kf7 d4 b3 e5 b2 e6+ Kf6 e7 Ra3+ Nc3 b1N e8B Ne7 d6 Nec6 h6 Ne7 d5 Ra7 b7 Ra4 h7 Kg7 d7 Ng8 d6 Ra6 b6 Ra5 Ra3 Ra7 Na4 Nf6 Bg2 Rg8 Nh3 Na6 Bh5 Ne8 b8N Qf6 d8Q Be6 Rb3 Rb7 Nd7 g4+ Ke2 g3 Kd3 f3 Qa8 f4 Ke4 f2 Qf1 f3 Ndc5 Ra7 Ng5 Rb7 Nb2 Nd2+ Kd3 Ra7 Qe4 Rb7 Qe3 Ra7 Rg1 Rb7 Bh1 g2 Qa1 Ra7 Rf1 g1B b7 Bh3 b8Q Be6 Re1 f1B+ Re2 f2 Qb5 Nf3 Ke4 Bg2 d7 f1Q Qc4 Qc1 Rf2 Ra8 Rf1 Bf2 Qcd3 Bg4 Kd5 Be6+ Kc6 Rb8 Qc4 Rb4 Qcd3 Re4 Kb7 Bgh3 Kc8 c6 Nc4 Kh8 Rb8 Bh4 Bg6 Bd5 Nb2 Ne1 Bg2 Qf3 Nge6 Nac7 Bh5 Bh6 Rb3 Qf7 Rf4 Bf2 Bf1 Rg1 Ng5 Re7 Qc4 Qe6 Rf8+ Kg7 Qcd3 Qf6 Qf5 Bg3 Ba6 Bhg2 Qf1 Nf3 Bb7 Bf2 Ba8 Be6
2q1Q2q/r1P2B2/1K2R2q/2rRp2b/QP2kP2/R1rNNr2/BBn2bn1/8 w - - 0 1 legal: proof: e4 c5 d4 b5 a3 b4 axb4 cxd4 h4 g5 hxg5 f5 exf5 a5 b3 a4 Kd2 axb3 Ke2 Bh6 Ke1 Bf8 Kd2 Kf7 Kd3 e5 Kc4 d5+ Kb5 h5 g4 d3 f4 b2 c4 d4 g6+ Kf6 g7 h4 c5 d2 c6 d3 c7 h3 Ra5 h2 Na3 b1R Kb6 Ra7 Qc2 d1R Qa2 d2 Qc2 Ne7 g8Q Rh3 Bb2 Rf3 Bc4 Rbc1 Ba2 Ng6 Qa4 Rc5 Nc4 Nh4 Ne2 Rc1 Ne3 Nc6 Rd1 R1c3 Nc1 h1Q Nd3 Ng2 Ra6 Be7 Qe8 Nd4 Ra5 Nc2 g5+ Kg7 g6 Kf6 g7 Qh8 Ra1 d1Q g8B Qdh1 Bgf7 Q1h6 Ra6 Bd7 Rd1 Qc8 Ra1 Kg7+ f6+ Kh7 Ra5 Bg4 Rd1 Bh5 Ra1 R5c4 Rd5 Rc5 Bb3 Qa8 Ra3 Qc8 Ba2 Bf8 Be6 Be7 f7 Bh4 f8R Bf2 Rf7+ Kg6 Re7+ Kf6 Bf7 R3c4 Nf1 Kf5+ Re6 Rc3 Ne3+ Ke4
r2B1Qb1/5Nb1/nr5K/3kqN1B/8/1PP2RpR/3r1PN1/nnn1R1Qr w - - 0 1 legal: proof: e4 b5 d4 c5 Qd3 b4 Qd1 b3 axb3 cxd4 Bg5 a5 Bc1 f5 exf5 a4 g4 h5 gxh5 a3 Bc4 axb2 Ba6 Qc7 Bf1 Qd8 Kd2 Kf7 h4 e5 c3 g5 f6 Ke6 h6 d5 h5 g4 f7 d3 Ke3 e4 Kf4 g3 h7 d2 h6 e3 Be2 d4 Bd3 e2 Bb5 e1N Rh4 d3 Rh1 Qc7+ Kg5 Na6 Ne2 Bg7 f8R Nf6 Na3 b1N Be8 Nc2 Nb5 Nd5 Nd6 Nf4 Bh5 Kd5 Rh3 Be6 Qg1 d1R Nf5 d2 Rf7 Rhc8 h8N Nd3 h7 Bf6+ Kh6 Qe5 Rf8 Re1 Nf7 d1R h8Q Rcb8 Bg5 Rb6 Qg8 Rd2 Nf4+ Kc5 Qh8 Nc1 Ng2 Kd5 Qg8 Bh8 Bd8 Bf6 Re8 Red1 Qf8 Re1 Ra4 Na1 Rf4 Rf1 Rf3 Rfd1 N7d6 Bg8 Nf7 Re1 Qh2 Rh1 Qg1 Qd4 Re4 Qe5 Re1 Bg7+
QBrqk3/1R5R/1Q1K4/2Q2q2/NrP1bN2/b4BbP/r2p2Pr/4r1nR w - - 0 1 legal: proof: e4 d5 f4 c5 d4 g5 a4 gxf4 Qh5 b5 Qxh7 Nd7 axb5 Nb6 Qf5 cxd4 Qh7 d3 Ra3 d4 Ra1 Nd5 exd5 Bh3 Bd2 Bf5 Bc1 Bc8 Kd2 e5 b4 a5 c4 f5 b6 a4 b5 e4 b7 f3 b8Q e3+ Kd1 f2 b6 f4 d6 a3 b7 e2+ Kd2 e1B+ Kd1 f3 Qh3 a2 Ne2 d2 Kc2 d1R Kb3 d3 Nbc3 Ne7 Kb4 Nc6+ Kc5 Bf5 Na4 Be4 Qf5 Nd4 Bf4 d2 h3 Rb1 Bh2 Rb4 Nf4 Ne2 Qbc8 Rg8 b8R Ng1 Be2 f1Q Rb7 f2 Bf3 Ra6 Rb1 a1R Rh7 Qd3 Bg3 f1R Qa8 Ra2 Bh2 Bg3 Qfc8 Re1 Rb3 Rb8 Rbb7 Rb6 Qc7 Rb4 Qca5 Bg7 Qc7 Bb2 Qc8 Ba3 d7+ Kf8 Qc7 Rc8 Qc6 Rg6 Qc7 Rgb6 Qc6 Qf1 Kd6 R6b5 Qb6 Rbb1+ Qc5 R5b4 Be2 Qf3 Bd1 Qg4 Be2 Qf5 Bf3 Qe8 d8Q Rbd1 Qdb6 Qd8+ Rhd7 Ke8 Qba5 Rbb1 Qb6 Bf2 Nh5 Ne2 Rg1 Rb4 Be5 Rdb1 Nf4 Rec1 Rf1 Bg3 Re1 Qh5 Ke6 Rba1 Bb8 Qf5+ Kd6 Rd1 Rf1 Rab1 Rf2 Rh1 Rf1 Re1 Rg1 Rh2 Rh1 Qdg5 Rf7 Ng1 Rh7 Qd8+
2R4r/B5R1/6b1/r2QKp1B/1BP2Qbb/qr2N1P1/kP1qNNb1/2nb4 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 b5 axb5 e6 f5 exf5 g3 Ke7 g4 Ke8 g5 f6 gxf6 g5 Ra4 g4 Ra1 g3 Kd2 g2 Ra4 Na6 Ke1 Nc5 Ra3 Ne4 Ra1 Ng3 hxg3 Qc7 Kf2 Qb6 Ke1 Qd8 Kd2 Kf7 Kd3 Ke6 e4 a5 f7 h5 b6 d5 e5 h4 c3 a4 b7 h3 b8N h2 Be2 a3 Bg4 a2 Bf3 Ra3 Ne2 g1Q Na6 Rb3 Bh6 Qe3+ Kc2 Be7 f8B Bd7 Nb4 Nf6 Qf1 Nh5 Nd2 Bh4 Bd6 Nf4 Ne4 Nd3 Bh5 Be8 Rc1 a1R Qf4 Ra5 Nf2 Bg6 Bb8 Qd7 Bf8 Qf3 Rhd1 h1B Ba7 Bg2 Kd2 Qd6 Nc2 Qd8 Ne3 Qg5 Rc2 Nc1 Ba3 d3 Bb4 d4 Re1 Qc6 Rh1 Qa4 Rh3 Qa3 Rh2 Kd7 e6+ Kc6 e7 Kb5 Rh1 Ka4 e8Q+ Bc6 Qf7 Bg2 Kd1 d2 Qd5 Na2 Rc1 Qh6 Kc2 d1B+ Kd2 d3 Rc2 Nc1 Rh3 Bg5 Rh4 Bd8 Rg4 Bh4 Rg5 Bh7 Rg7 Bg6 Neg4 Qg5 Ke3 d2 Kd4 Qd8 Ne3 Qd7 Ng1 Bg4 Ke5 d1B Ne2 Qd8 Rd2 Qg5 Rd4 Qh6 Rc4 Qg5 Rc8 Qd8 Qc5 Qd2 c4 Rc3 Ke6 Kb3 Qd5 Ka2 Ke5 Rb3
N3QB1k/r1Q5/5bK1/PPR2Nq1/2bqbRr1/1rrnRQp1/2B1P3/3r4 w - - 0 1 illegal: No possible last move, all moves rejected
4q1KN/2QPq1Bn/1B4N1/r7/PQB3nq/Pq1p2bk/6Nq/RR2rn2 w - - 0 1 legal: proof: h4 g5 e4 gxh4 b3 f5 exf5 a5 Ne2 a4 bxa4 Kf7 Ng1 Ke8 d4 c5 c4 d5 Bh6 Be6 Bd2 cxd4 Bc1 d3 Qd2 d4 Qd1 Bd5 cxd5 Ra5 Be2 Ra6 Bf1 Ra8 Kd2 Kd7 f4 b5 g4 e5 a3 h5 f6 e4 f7 e3+ Ke1 d2+ Ke2 h3 Kd3 h2 Ke4 b4 Kf5 h4 Kg6 b3 d6 Ke6 g5 h3 Qc2 d1N Nf3 b2 Ne5 e2 Nd2 b1Q Ndf3 e1Q Nh4 Nf6 Ng2 Qe8 Be3 Qb3 Qc7 Ng4 Be2 Rg8+ Kh7 Kf5 g6 Nd7 g7 Ra5 Bc4 d3 Bb6 Nde3 Ng6 Nf1 Nh8 Q1e7 Rg1 h1Q Rb1 Nc5 d7 h2 Ra1 Ne6 Rb1 Kf6 f5 Kg5 f6 Kh5 Ne3 Kh4 Ng2+ Kh3 Ra1 Qd6 Rb1 Be7 f8B Qe5 f7 Bh4 Ra1 Bg3 Rb1 Nd2 Rge1 Nf1 Ra1 Qg1 Reb1 h1Q Be7 Qee3 f8Q Qe5 Bf6 Qgh2 Qb4 Qd6 Bc3 Qde7 Bf6 Rf8 Bfd4 Rf6 Bc3 Nf8+ Kg8 Rf7 Bbd4 Rf6 Bb2 Re6 Bb6 Q2g1 Bf6 Kh2 Bfd4 Ng6+ Kh7 Re1 Bc3 Qd6 g8N Nf8+ Kg7 Qde6 Ne7 Qe2 Nf4 Qgg2 Neg6 Q2e7+ Kg8 Qh3 Qe5 Qhh4 Ng2 Kh3 Qc7 Qh2 Bg7 Nh7+
1k2r3/3PnP1R/3qRr2/6b1/rN2KQB1/1BpnN2Q/Q3P1rB/q4q1r w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 e5 d4 exd4 g4 fxg4 h3 g3 Qa4 g2 Qc2 Nh6 Qd1 Ng8 Bg5 Bg4 Bc1 g5 Ra3 Bf5 Ra1 g4 Na3 g3 Nb1 Bg4 hxg4 Bd6 Bf4 Ba3 Bc1 Bf8 Kd2 Kd7 Kd3 Kc8 b4 c5 f4 a5 g5 h5 f5 h4 f6 a4 g6 a3 b6 a2 d6 c4+ Ke4 c3 d7+ Kb7 b5 d3 g7 d2 Na3 h3 Qb3 d1R Bf4 h2 Nh3 g1Q Nc2 g2 Nb4 Ra5 Nf2 Re1 Nd1 Rh4 Ne3 Ne7 g8B Ra4 Qb2 Bh6 Bb3 Qg8 f7 Nbc6 Qb1 Ka8 b7+ Ka7 Qb2 Qb8 Rb1 a1Q Qa2 Qf8 Rd1 Rg4 Rd6 Ne5 Re6 Rg8 Bg3 Qf2 Bf4 g1R Bh3 Ref1 Bg4 Kb8 Bg3 Bg5 Bf4 Kc7 b6+ Kd8 Bg3 Nd3 Bd6 Rg2 b8Q+ Nc8 Bf4 Qd6 b7 Re8 Qa7 Qg1 b8Q Rf3 Qd4 Qgf1 Qh8 Rff2 Be5 Rf5 Qh3 Rf6 Qa7 Ne7 Qd4 Kc7 Bg3 Ra7 Qe5 Kb8 Qf4 Bh4 Rg1 h1R Bh2 Qf2 Rd1 Ra4 Re1 Qf1 Rd1 Ne1 Rd5 Nd3 Rh5 Bg5 Rh8 Qfe1 Rh7 Qf1
K1r2RB1/6N1/1kPBP2b/1b1pqR2/2r5/1Pq1r3/nr1R4/QbQq1NN1 w - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 g5 Nb1 f5 gxf5 Nc6 h3 Ne5 h4 g4 Nc3 Nf7 Nb1 Ng5 hxg5 Qe7 Ra2 Qf6 Ra1 Qd8 Kf2 a5 e4 d5 c4 Kd7 f6 Kc7 e5 h5 b3 a4 g6 g3+ Kf3 h4 g7 g2 f7 h3 c5 d3 c6 h2 Nd2 a3 Ra2 Nf6 g8Q Ra4 Ra1 a2 Ba3 Rh7 Bd6+ Kb6 Qg7 Qc7 Qc1 Rc4 Qh8 Bh6 f8N Rf7 Ne6 Ne4 Ng7 Bf5 e6 Nc3 Be2 Bg6 Nf1 d2 Bd3 d1Q+ Kf2 f3 Bb1 Rff4 Ke3 f2 Bd3 Be4 Rb1 a1Q Rb2 Na2 Rd2 Rc3 Kd4 Bh7+ Ke5 Rfc4 Bg6 Qb8 Bf7 Bb1 Bg8 Rc2+ Rd4 Rb2 Rd2 Ka5 b6 Qc7 b7 Kb6 Nf3 g1R b8R+ Qb7 Nd4 Rg3 Rf8 Qb8 Nf3 Rh3 Rg1 h1R Rg5 R1h2 Ng1 Re3+ Kf6 Rhh4 Ke7 Rhf4 Kd7 Rf7+ Be7 Qd6+ Kc8 Qe5 Bd6 Rc7+ Kb8 Qc3 Ka8 Qe5 Nh2 f1B Rh5 Rc5 Rhf5 Bb5 Nf1 Rc4 Qh7 Rbc2 Qg6 Qac3 Qg4 Rb2 Qe4 Bc2 Qa1 Bb1 Qc2 Ree4 Qc1 Re1 Rff2 Re3 R2f5 Rc8+
qn4Q1/bBPbP2B/1b3P2/rp2qb2/kB3K2/N1R4R/q5r1/rNR3Q1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 gxh5 a5 Bh6 axb4 Bf4 Rh7 Bc1 Rh8 f4 e5 e4 f5 exf5 e4 Ne2 Nc6 Ng1 Ne5 fxe5 Bd6 Bg5 Be7 Bc1 Bf8 Na3 d5 Ke2 Kd7 h4 Kc6 c4 g5 e6 b3 c5 d3+ Ke3 g4 f6 b2 h6 b1Q h7 g3 h5 d2 h6 d4+ Kf4 d3 Nc4 Kb5 c6 e3 c7 e2 Ba3 e1Q Ne2 g2 Bb4 g1B a3 Ne7 a4+ Ka6 a5 Kb5 a6 Bd7 a7 Rg8 h8R Qa2 h7 Rg2 Rg8 Nc6 h8Q Bfc5 e7 b6 Qc1 d1R Rg3 d2 Qg8 Ka4 Rhh3 b5 Na3 Bcd4 Qc5 Rb1 Rb3 d1B Rbe3 Bc2 Rb3 Rb2 Rc1 Rb1 Rbd3 Ra1 Rdg3 Rb8 a8B Qc8 Bb7 Ra8 Re3 Ra5 Rd3 Qa8 Qcg5 Rg3 Bg2 Nb8 Bge4 Ba7 Bh7 Bgb6 Qg4 Re3 Qg1 Rg3 Re3 Rg2 Rb3 Bcf5 Rbd3 Qf7 Nc3+ Kb3 Ncb1+ Ka4 Rdf3 Qa2 Rfc3 Qe5+
3b1qBq/1Qp2QnP/bqBq3K/1P6/2r1R1R1/1N1r1NB1/k3P3/3b1rQ1 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 f4 exf4 a3 h5 a4 hxg4 axb5 a4 Nh3 Nc6 Ng1 Na5 bxa5 Ra7 Bb2 Ra6 Bc1 Ra8 Kf2 Ke7 h4 Kd6 d4 g5 a6 f5 h5 g3+ Kf3 g4+ Kg2 a3 a7 a2 h6 Ne7 h7 Ba6 Rh4 f3+ Kh1 f4 Qb3 f2 Kg2 Nf5 Qe3 Ng7 Nf3 Be7 Nbd2 Qf8 Nb3 Bd8 Qe8 Rg8 Qf7 Rh8 Rb1 a1Q Bd2 Rg8 Be1 Rb8 a8B Qc3 Kh1 g2+ Kh2 g3+ Kh3 g1Q Kg4 g2 Bc6 Qh2 Ra1 g1Q+ Bg2 f1R Ra4 Qa1 Bg3 Qe3 Bd7 Rb6 Be6 Rc6 Bh1 Rc4 Rb4 Nf5+ Kh5 Ng7+ Kh6 Rh8 Qh5 Qac3 Bg8 Qb2 Rg4 Qeg1 Ne5 f3 Bg2 f2 Nf3+ Ke7 d6+ Kf6 d7 Ke7 Bh4+ Kd6 d5 Qbe5 Na1 Kc5 Qf7 Qd4 d6 Qhe5 Rb2 Qdd5 Ra2 Kb4 Bg3 Qd1 Rd2 Ka3 Rdd4 Ka2 Rde4 Qdd4 Nb3 Qh2+ Nh4 Qb6 Bf3 Rd1 Bg2 f1B Bh1 Bh3 Nf3 Rd3 Bg2 Bh4 d8Q Qc3 Qde8 Bd8 Qc6 Qa1 d7 Qad4 Rh4 Be6 Qb7 Qdd6 Rg4 Qhg1 Re4 Qgd4 Rhg4 Qb4 Qe8 Rc6 Nc5 Qf4+ Ng5 Rd2 Bf7 Nh5 Rh4 Rf8 Re3 Qh8 Rg4 Ng7 Bg8 Be7 d8Q Bb3+ Qd6 Rf5 Qf7 Bd8 Bd5 Qfd4 Ree4 Rf2 Qdf6 Rd3 Nf3 Qa3 Re6 Qdb4 Qd4 Rf1 Qg1 Qd4 Be4 Bd1 Nb3 Rc4 Bc6 Qf8 Ree4 Qdd6+
kbB2BB1/8/b3b1K1/4bPQ1/n2n3r/1r1Q1N1P/1P3pbR/1N1RrNn1 w - - 0 1 legal: proof: d4 b5 g4 e5 f4 h5 gxh5 c5 a4 cxd4 axb5 f5 e4 Qf6 Bd3 exf4 Bf1 f3 Nc3 f4 Nb1 Qf5 exf5 Ba3 Nh3 Be7 Ng1 Bf8 Kf2 Kd8 c4 Kc7 h3 Kb7 b6 d5 c5 a5 h6 g5 h7 a4 Bc4 a3 Nc3 d3 Qe1 a2 Qe6 d4 Be3 d2 Qd6 d1N+ Kf1 d3 Na4 d2 Qd4 f2 Ke2 f1B+ Kf3 g4+ Ke4 f3 Qg7+ Nd7 Rc1 a1R Qf6 f2 Kf4 g3 Kg5 g2 Rh2 Bd6 Kg6 Rb8 c6+ Ka8 c7 Nc5 Bh6 Be6 c8B Nc3 Ne2 d1B Qg5 g1B Bf8 Be5 Ng3 Bg2 Nf1 Ne2 Nc3 Na4 Nb1 Bb3 Rd1 Ne7+ Kh5 Nc6 Kg6 Ncd4 b7+ Ka7 Bd5 Bc2 Bb3 Bd3 Bd5 Ba6 Bc4 Ra8 b8N Ra3 Nd7 Rb3 Bd5 Rab8 Bc4 Ka8 Bd5+ R8b7 Bc4 Bb8 Ne5 R7b5 Nf3 Re5 Bg7 Re4 Bh6 Re8 h8Q Rh4 Bf8 Re7 Qe5 Re8 Qee3 Be5 Rh1 Bgh2 Qd3 Bhf4 Rh2 Ng1 Bb5 Re7 Be8 Bb8 Bf7 Bfe5 Bg8 Re4 Qh5 Re1 Qh6 Rh7 Qg5 Rh4
2rRB3/nP1Pk2B/3r1N1K/2nRq2p/PNBr3b/2Q2n2/n7/nQ1Qn3 w - - 0 1 legal: proof: e4 g5 h4 gxh4 b4 f5 exf5 a5 Ba3 b5 bxa5 d6 c4 Ba6 Bc5 dxc5 Rh3 b4 Rh1 Bb5 cxb5 Ra7 Be2 Ra6 Bf1 Ra8 Ke2 h5 Kf3 e5 g4 c4 a4 c5 d4 e4+ Kf4 h3 d5 b3 b6 h2 a6 b2 f6 c3 Kg5 c2 f4 c1R f5 e3 d6 c4 a7 c3 Bc4 c2 Ne2 Kd7 Nbc3 b1N Ng3 e2 Nd5 e1N Nb4 Qc8 f7 Ne7 f6 Rh6 Ne4 Bg7 f8Q Nec6 f7 Na5 Qh8 Nb3 f8Q N1d2 Qf1 Qe8 Nf6+ Kd8 Ra3 Na1 Rd3 Nc6 Rd5 Rc8 a8B Na7 Bc6 Rb1 b7 c1N Rg1 h1N Rg3 Bf8 Rgd3 Na2 Qg1 Qe7 Be8 Nf2 Qh1 Rb3 Qe4 Bg7 R3d4 Bf8 Qeb1 Nfd3 Qg7 Nc5 Rd3 Rh8 R3d4 Rg8 Kh6 Ndf3 g5 Qe5 g6 Be7 Qh8 Rf8 g7 Rd3 g8B Rf7 Bh7 Rg7 d7 Rg4 Re4 Rh4 Re2 Rhd4 Rg2 Rd2 Rg8 R2d3 Ng4 Bh4 Nf6 Rd2 Qg7 Ng1 Qg3 Ke7 Qc3 R2d3 Beg6 Rd2 Rd8 Ngf3 Be8 Rb2 Na6 Rb6 Nb4 Rd6
N1qq2k1/3r2n1/q1qP2p1/Q2PR2n/QP1K2N1/1bB1N1q1/2B3bR/3R3q w - - 0 1 legal: proof: e4 h5 g4 hxg4 c4 b5 f4 bxc4 a4 d5 d4 e5 exd5 a5 d6 e4 d5 Be7 Nh3 Bf6 Ng1 Be5 fxe5 Ra6 Qf3 Rb6 Qd1 Rb5 axb5 Qg5 Kf2 Qf6+ Ke1 Qd8 Ke2 Kf8 Ke3 c5 h4 f5 b4 f4+ Ke2 e3 e6 c3 Kd3 f3 b6 g3 h5 c2 b7 e2 h6 e1Q h7 f2 Qh5 c4+ Kd4 g2 Qf5+ Nf6 Be2 f1B Qh3 g6 Ke5 c3 Na3 a4 Kd4 Na6 b8N Qg3 Bd1 Nh5 Bd2 c1Q Nf3 c2 Rh2 Bc4 Ne5 Nc5 Na6 Bb3 Nac4 g1Q+ Ne3 a3 Bc3 a2 Nc7 Qh1 e7+ Kg7 Qh4 Bh3 e8R Bg2 N5g4 Rf8 Qg5 Rf7 Re5 Rd7 h8Q+ Kf7 Rb1 a1Q Na8 Qa6 Qe8+ Kg7 Qf6+ Kh7 Qf1 Kg7 Qb5 Ne6+ Kd3 Kh7 Ra1 Ng7 Kd4 Qg5 Qa4 Qd8 Qe7 Kg8 Qh4 Qf8 Qd8 Qe8 Qda5 Qec8 Nf5 Qg5 Nfe3 c1Q Bc2 Qgd8 Rb1 Qa3 Rc1 Qac6 Rd1 Qa2 Bd3 Qe2 Bc2 Qea6
N1Kbr3/b4r2/3n2p1/BB3Qq1/B6P/bR2P1rq/N1QrPN2/1R2b1k1 w - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 b5 h5 bxa4 Qb3 e5 Qc2 e4 Qd1 e3 fxe3 Bd7 Ra3 Be6 Ra1 Bc8 h6 g6 Qc2 Nc6 Rh2 Nd4 Qd1 Ne6 Rh1 Ng7 hxg7 h5 Qb3 h4 Qd1 h3 Na3 h2 Nb1 Bh3 gxh3 Qd5 Kf2 Qd6 Ke1 Qd8 Kf2 Kd7 Kg3 Ke6 Kg4 c5 b4 f5+ Kf4 a5 d4 c3 b5 a3 b6 c4 h4 c2 b7 c3 b8N a4 Nc6 a2 Nb4 a3 Qe1 Ne7 Bd2 c1B Qg3 c2 Nd3 Nc8 Qg4 Be7 Nb2 Nd6 Nh3 Re8 Ba5 Bd2 Nc3 c1B Rb1 a1R Na2 Be1 g8B+ Kf6 Rg1 h1Q Nf2 Qh3 d5 Rc8 Qf3 Rc2 Na4 Rd2 Rb3 Bb2 Nb6 Rb1 Nc3 a2 Na8 a1B Bg2 Ba3 Na2 Bd4 Be6 Bb6 Bd7 Ba7 Ba4 Rc1 Qe4 Ra1 Qc2 Rb1 Bb4 Qa5 Be4 Bd8 Bd3 Rc1 Qc8 Rc7 Bdb5 Rh7 Rh1 Rh5 Qc7 Rg5 Qc2 Rg3 Rf1 Kg7 Rh1 Kh6 Rg1 Kh5 Rf1 Rh8 Ke5 f4 Bc3 f3 Bb4 Nf5 Ke6 Re8+ Kd7 Nd6+ Ng4 Nf7 d6 f2 Rh1 f1R Kc8 Rf2 d7 Rf5 Nf2 Rf4 Ba6 Qg5 B6b5 Rf6 Ba5 Rf4 Nd3 Kg4 Rg1 Rg2 Nf2+ Kg3 Qf5 Kh2 Qc2 Rg3 Qf5 Bde7+ d8Q Bf6 Kc7 Nd6 Qdc8 Be7 Qc2 Rf7 Q8f5 Nc4 Kb7 Bd8+ Kc8 Rf3 Rg4 Rg3 Rf4 Kg1 Rd4 Nb2 Rdb4 Nc4 Rb1 Rh8 R4b2 Re8 Rb3 Nd6#
b3QqR1/1NN4P/qp1NQ2r/1P6/1n1QrRP1/8/K1B1qb1r/3r1Bqk w - - 0 1 illegal: No possible last move
Bq6/1P1R1K1k/1b2r3/3Q1qbB/4N3/N1P1BRPQ/qr1b1p2/1b1b1Qr1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 g5 Qe1 f4 Ra2 Nf6 Ra6 Nc6 Ra1 Ne4+ Kd1 Ne7 Qd2 Nf5 gxf5 g4 Ke1 g3 Qd3 g2 Qd1 Ng3 hxg3 Qg5 Rh6 Qe7 Rh1 Qd8 Kd2 Kf7 Kd3 Kg7 Ke4 h5 Kd5 a5 e4 f2 b4 d3 b6 a4 f6+ Kh7 f7 a3 b5 d2 b7 a2 b8Q h4 e5 h3 b6 f3 e6 h2 e7 Ra6 e8B Be7 f8Q Bg5 Bc4 f1Q Ke5 d5 Beb5 d4 Bf7 d3 Ne2 g1B Na3 Bf5 Bh5 Rg8 Rb1 a1B+ Nc3 Bf2 Rg1 h1Q Bc6 Qh2 Qc8 Rg7 Qf6 Rb7 Rb3 Bfe3 Qce6 Qb8+ Kd5 Bg6 Ne4 Bc3 Qh3 Qff2 Qdf1 d1B Ke6 d2 Qff5 Ba5 c3 Qhg2 Qd5 Bef4 Nc5 Bb1 Ne4 Qc5 Rh1 Qe2 Rb4 f2 Rd4 Qec4 Rd3 Qa2 Rh2 Bb3 Re3 d1R Rf3 Bd2 Rh1 Re1 Rh2 Bd1 Rh1 Rg7 Ba8 Rg6+ Kf7 Re6 b7 Rab6 Rh2 Rb2 Rh1 Bb6 Rh2 Bdf4 Be3 Qb5 Qdc4 Q5e5 Qd5 Qf5+ Nf6+ Kh6 Qh1 Re8 Rg2 Ba4 Bd4 Bb3 Rg1 Qe4 Qde6 Bc1 Be3 Qf5 Qc4 Re6 Rf1 Ree2 Rd1 Re1 Qc6 Rf1 Rd7 Bd2 Qd5 Bd1 Q1g2 Rg1 Qf1 Qfe5 Ne4 Kh7 Qc5 Qed5 Qd6 Qe5 Qd5 Qf5+
3Q2b1/3N3b/6np/1kb1qqPb/1bq2NN1/1Q1PB2P/2K1BqQ1/3Rr2R w - - 0 1 legal: proof: e4 d5 a4 dxe4 f4 c5 b4 g5 Nh3 a6 Ng1 b5 axb5 cxb4 Ra4 g4 Ra2 Qa5 Ra1 Qd8 g3 f5 Qe2 a5 Qf3 Ra6 Qd1 Rg6 Nf3 Nd7 Ng1 Ndf6 Qe2 Nh5 Qd1 Rg5 fxg5 f4 Kf2 f3 Ke1 Nf4 gxf4 Qc7 Bg2 Qb6 Bf1 Qd8 c4 Kd7 c5 e5 b6 Kc6 b7 f2+ Ke2 h6 b8N+ Kb5 f5 e3 h3 b3 c6 a4 c7 e4 f6 b2 f7 g3 Nf3 g2 Qc2 g1B Kd1+ Qd3 Nc6 a3 Qb3+ Bb4 f8Q a2 Ne1 Ne7 Qbf7 Qc4 Q7g8 Bg4+ Nf3 Bh5 c8Q Ng6 Bg2 f1B Nb8 Bd3 Qg4 e2+ Ke1 Be3 Nh2 Bec5 Nd7 Bc2 Q8e6 Bb3 Qd8 Re8 Bf1 Re7 Qg2 Re8 Qd6 Re7 Ng4 Re6 Qd4 Re8 Kf2 e3+ Kf3 e1Q Qc3 Qh4 Be2 Qd3 Qc2 Bg8 Qb3 Qc4 Bf1 e2 Nc3+ Ka6 Nd5 e1Q Be2 b1B Nf4 Kb5 Qc8 Qd1 Qd8 Qc2 Rd1 Qf5 d3 Bh7 Bd2 Bc2 Rac1 a1Q Be3 Qae5 Rh1 Qe1 Rd1 Qg1 Qc3 Qh2 Kf2 Re7 Ke1 Bb3 Kd2 Qg3 Kc1 Qf2 Kd2 Qce4 Kc1 Bbg8 Qb3 Qc4+ Kb1 Nf8 Bc1 Qg7 Bf1 Re2 Be3 Re1 Be2 Qe7 Kb2 Ng6 Kb1 Qd6 Kb2 Qde5+ Kb1 Qcf7 Kc2 Qc4+
BbRQ2Q1/b5B1/1P2r3/1bqR2Bp/b1NPqQr1/2Kr4/k1N4P/r4r2 w - - 0 1 legal: proof: e4 c5 b4 d5 f4 dxe4 a3 e3 a4 b5 axb5 cxb4 g3 f5 Ra3 e5 Ra2 e4 Ra1 Nd7 g4 Ne5 fxe5 f4 Bh3 Ne7 Bf1 Nf5 gxf5 Be6 Ra3 Bd7 Ra1 Bc8 c4 Kd7 f6 Ke6 d3 g5 c5 Kd5 c6 h5 f7 a5 e6 f3 e7 g4 e8Q f2+ Ke2 b3 c7 b2 Ra3 g3 Bh3 f1B+ Ke1 a4 Bd7 g2 Bh3 e2 Kd2 e1Q+ Kc2 e3 Nf3 g1B Bd2 e2 Bf4 Bd6 f8B Bd7 c8Q Qc7+ Rc3 a3 B8h6 a2 Bg2 a1R Qd2 R8a3 Qcd8 Ba7 b6 Rg8 Ne5+ Kd4 Rg1 Rg4 Ba8 Qc4 Qf8 Bdb8 Bg7 Qd5 Bg5 Ba4+ Rb3 Qf2 Qg8 e1R Rg2 Qf8 Qf4+ Kc5 Rd2 Qe6 Nc3 b1R Na2 Qg6 Nb4 Qe7 Nf7 Re6 Ne5 Qe4 Rd1 Qc7 Kd2 Qe7 Rc3+ Kb5 Rc8 Qc5 Nc2 Rc3 Nd4+ Kb4 Nc2+ Kb3 d4 Ka2 Re1 Bfb5 Nc4 Qb7 Re5 Qe4 Rf5 Rf3 Rd5 Rff1 Kc3 Rbd1 B7h6 Rd2 Bg7 Rd3#
NBq5/5rn1/1p1P1PKR/4kNnr/Q3qr1P/2q1R3/NqB1r1Q1/1B2q3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 d5 cxd5 axb4 Rh3 fxe4 Rh2 Ra5 Rh1 Ra8 Nc3 h5 Rb1 g4 Bc4 g3 Bd3 Bh3 Ra1 Bh6 Bf1 Bg5 hxg5 h4 Nb1 Bf5 Qf3 h3 Qb3 h2 Qd1 Bh3 gxh3 Rh6 Nf3 Rh4 Ng1 Rh8 Ke2 Kf7 Ke3 c5 Kf4 e5+ Kf5 c4 f4 b6 a4 g2 d4 b3 d6 e3 a5 b2 a6 c3 d5 e2 a7 e1R d7 e4 Ra3 c2 Ne2 g1R Nd4 e3 Bd3 e2 Nc3 b1Q Na2 Rg4 g6+ Ke7 g7 Kd6 Be3 c1Q Bc2 Nf6 g8B Qbb2 Bh7 Qc8 Bg1 Ne8 Re3 Qcc3 d8Q+ Nd7 Qg5 Nc5 Kg6 Ne6 f5 Rf4 f6 N8g7 Qg2 Raf8 a8N Ng5 Bf2 Qc8 Bg3 Rf7 Bb1 Q1c3 Qa4 Rd1 Bc2 e1Q Bb1 Rd2 Nf5+ Kc5 Bc2 Re2 Bb1 Rc4 Bb8 Rf4 Bg8 Rh5 d6 Ra7 Bb3 Rf7 Rf1 h1Q B3c2 Qc4 Rff3 Kd5 h4 Qh3 Re8 Qcd4 Rh8 Ke5 Rh6 Qe4 Ra3 Qhd3 Rc3 Qdc4 Re3 Qcc3
kq2R3/2q5/PQ6/bqPb1BNR/b1RN1pbB/2Nq3Q/3Pn2n/6nK w - - 0 1 illegal: No proof kernel
n4b2/3npQNq/KP1b4/3b1B1P/k3NR1n/B2nQ1b1/R1PqR2Q/6q1 w - - 0 1 legal: proof: e4 f5 a4 fxe4 g4 h5 d4 c5 Bg5 cxd4 Bc1 b5 axb5 h4 Qe2 a6 Qf3 Rh5 Qd1 Rh8 h3 g5 Qd2 a5 Qd1 Rh5 gxh5 g4 Bd2 g3 Bc1 Ra6 Ra3 Rg6 Ra1 Rg4 hxg4 Ba6 Bc4 Bb7 Bf1 Bc8 Ke2 d5 f4 Kd7 b4 h3 b6 Kc6 b7 Kb5 f5 h2 f6 d3+ Kd2 e3+ Kc3 a4 g5 g2 f7 e2 g6 e1B+ Qd2 d4+ Kb2 a3+ Kb3 a2 g7 Nd7 b8R+ Nb6 Ba3 Bg3 Nf3 g1N Nh4 Bb7 Qe3 Nf3 Nf5 Nf6 g8Q Nh4 Ng7 Nfd7 Nd2 Na8 Bh3 Qb6 Rhf1 h1Q Rd8 Qg6 Bf5 Qh7 Rf4 Qg1 Ne4 d2 Re1 d1Q Re2 a1B Rb8 Nab6 Ra8 d3 Ra7 Na8 Qh8 Kc6 Ka4 d2 Ka5 Be5 Qg8 Bd6 b5+ Kd5 b6 Kc4 Qh8 Bd5 Ka6 Qde1 Qg8 d1N Qh8 Qd2 Qg8 Qh8 Qh7 Nf2 Qg6 Bh2 Qg2 Bg3 Qh2 Qh7 Ne8 Bh6 f8Q Nd3 Qf7 Bf8 Ng7 Qgc1 Bb2 Kb4 Ba3+ Ka4 Bb4 Ba2 Kb7+ Kb5 Ra3 Bb3 Ra2 Qg1 Ba3 Ka4 Ka6 Bd5
1KQq2rq/P4r1P/b2NQR2/1N1Bb3/1k1b2Q1/pr2B2r/qB1bP3/5R2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 e5 Nf3 exf4 Ng1 d5 cxd5 b4 b3 a5 Ra2 Nc6 Ra1 Nd4 Kf2 Nf6 Ke1 Ne4 Ba3 Nc5 Bc1 Nb5 axb5 a4 Bb2 a3 Bc1 Na4 bxa4 Bf5 Nh3 Bd7 Ng1 Bc8 Kf2 Kd7 d4 Kd6 h4 g5 b6 c5 b7 f5 b8B+ Qc7 a5 b3 a6 c4 h5 g3+ Kf3 b2 a7 g2 h6 c3 h7 c2 Nh3 g1B Bg2 Ba6 Be3 c1B Nf2 Rg8 Qa4 Bd2 Nc3 Bg7 Rf1 b1Q Rh6+ Bf6 Qe8 Qa2 Qh5 Bh2 Qg4 Bg1 Rh2 Be5 Rh6+ Ke7 Nb5 Qd8 Bc7 Rb8 d6+ Kd7 Bh1 Kc6 d7+ Kd5 Bd6 Kc4 d5 Kb3 Bc7 Kb4 d6 Rb6 Ne4 Rb7 Kg2 f3+ Kh3 f2 Rf6 f4 Kg2 Ba1 Kf3 Be5 Bcb6 Rb8 Bbd4 Rb7 Bb2 Rb8 Qe6 g4+ Kg2 g3 Kf3 g2 Qg4 Qa5 d8Q Rb7 Qb8 Qd8 d7 Rb6 Ned6 Rb7 Ke4 f3 Re1 f1R Qc8 f2 Ra1 Rc1 Qc6 Rc3 Rf1 Rb8 Qd5 Rb3 Qde6 Rc8 Kd5+ Rc4 Qg3 Rh4 Kc6 Rh3 Qg7 Bgh2 Qg6 g1Q Bd5 Bd4 Qge4 Qg7 Q4g4 Qdf8 Kc7 Qh8 d8Q Be5 Kb8 Qe7 Qdc8 Qd8 Rb1 f1R Rc1 Rf2 Rf1 Rf4 Rh6 Rff8 Rhf6 Rf7
3KR3/n1QqrbNq/6N1/4R3/p1b1pnR1/1P1kB1n1/P5P1/r1BNQ1b1 w - - 0 1 legal: proof: d4 c5 e4 f5 exf5 b6 dxc5 b5 c4 bxc4 Be3 g5 h4 c3 hxg5 c2 Bd3 c1Q Bf4 Qc2 Bc1 Qxd3 Nd2 Qb1 Ke2 Kf7 Ke3 a5 Kf4 h5 Ke5 d5 f4 a4 g6+ Kg7 b3 h4 f6+ Kh6 f7 d4 f5 Kg5 c6 h3 c7 h2 g7 d3 f6 Ra7 Nf1+ d2 Ne2 Qh7 Nc3 Ba6 Ke6 Kf4 c8Q Nc6 Ng3 Ke3 Nh5 Kd3 Qe1 d1B Qc7 Bf3 Rf1 h1N Nd1 Ng3 Rb1 Be4 Rf4 Bg6 Rg4 Rb7 Rb2 Na7 Re2 Qe8 Re5 Qc8+ Kd5 Bc4+ Kc5 Qd7 Be3 Nh6 g8R Nhf5 Ng7 Ne2 Bc1 Nfg3 Be3 Nc6 Bc1 Ra7 Kb6 Nf4 Be3 e6 Bc1 Bd6 f8N Bf7 Ng6 Bb4 Rb8 Bc3 Re8 Bd4+ Rc5 e5 Be3 Bfd5 f7 e4 f8B Bf7 Be7 Rf8 Bg5 Rh8 Bc1 Bg1 Bh6 Ne6 Bhe3 Nf4 Qd8 Rc7 Rce5 Na7 Qc8 Qg8 Qb7 Rh1 Qc6 Qh7 Qc5 Qd5 Qc6 Re7 Qc7 Nc6 Kb7 Qb5+ Kc8 Na7+ Kd8 Bcd5 Qb4 Qc6 Nc3 Bf2 Ba3 Ra1 Bac1 Bg1 Nd1 Bc4 Qe1 Qd7+
7B/b3R3/5K1k/1QBq2pb/2Pnp1RP/nRqqPb2/1r1Q1Nr1/1Q2N3 w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 cxd4 a4 b5 axb5 g5 f4 Na6 fxg5 Nb8 g4 Nh6 g6 Ba6 g7 Bc8 g8R Nf5 g5 Ba6 g6 Ng7 Bg2 Bc8 Be4 Nh5 g7 Nf6 Bg6 hxg6 Kf2 d5 Kg3 e5 h4 d3 c4 d2 a6 d4 a7 e4 Kf4 g5+ Ke5 d3 e3 Qa5 Nc3 Bg4 Na2 Bf3 Rb1 Nd5 b6 f5 b7 Kf7 Rb3 Kg6 Rh2 f4 Nb4 Bc5 Nc2 Kh6 Rg2 Nc7 Re8 Nc6+ Kf6 Nd4 b8B Ncb5 g8Q Na3 Bd6 Qc3 Bb2 Rh7 Rg3 Rb7 Qb1 d1Q Rg4 d2 Nh3 Rab8 a8Q Ba7 Bc5 Rd8 Rg3 Bh5 Re5 f3 Ne1 f2 Qb8 f1Q+ Nf2 Qfd3 Rg4 Rb5 Qd5 Rf8+ Ke7 Rf3 Qdd8 Rg3 Kf6 Rg2 Qd5 Q1c2 Qdd6 d1B Re7 Bf3 Qdd8 Rb4 Qb5 Qcd1 Qda5 Nac2 Qaa2 Na3 Ba1 Q1d2 Qac2 Qd1 Qd2 Ndc2+ Kf5 Qcd4 Qdc1 Q3d2 Rd3 Qd5+ Be5 Rb2 Rb3 Q1e2 Qd1 Qc3 Qd2 Qb7 Ke6 Qed3 Bh8 Nd4+ Kf6 Qd5
1q3B2/2q1K2n/krN1P3/Bp1b1P1p/Q4b2/2N2R1n/R2QPqQ1/3n1Nr1 w - - 0 1 legal: proof: c4 a5 g4 f5 h4 d5 cxd5 e5 b4 axb4 d4 g5 dxe5 Nc6 Bh3 Ra5 hxg5 Ra7 g6 Ra8 g5 Nb8 Bg4 fxg4 Kd2 Kd7 Kd3 b5 Ke4 h5 Kf5 c5 a4 Kc7+ e6 Kb7 f4 b3 g7 b2 d6 g3 g6 c4 a5 c3 d7 c2 Nf3 g2 Rh3 g1N Nfd2 Nc6 Nf1 Ka6 Nc3 b1Q Qd2 Ne5 Rf3 Bb7 Ra2 Ng4 Ba3 N8f6 g8N Bd6 g7 Qe1 Ne7 c1Q g8Q Nf2 Nc6 Nh7 Qg2 Qb8 d8B Rg8 Bc7 Be5 Bf8 Nd1 Bb6 Qf2 Bd8 Rh8 Kg6 Bd6 Kf7 Nh3 f5 Bf4 Ke7 Rg8 Bc7 Qc8 Bb6 Rb8 Bc7 Ba8 Bd8 Rb6 Bc7 Qb8 Bd8 Kb7 a6+ Kc8 a7 Kb7 Qh2 Rg1 Qg2 Ra6 Ba5 Rb6 Kd7 Ka6 Ke7 Bb7 a8Q+ Qa7 Qad8 Qb8 Q8d4 Qc2 Qa4 Qc1 Na7 Bd5 Nc6 Qa1 Nb1 Qae5 Nc3 Qec7#
k2b1B2/4q2p/7p/2Bq1rP1/6PP/2rB1nRR/2N1bQ2/1nnbRQKN w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 e6 cxd5 e5 d4 exd4 f4 Be7 g4 Bb4+ Qd2 Bf8 Qe3+ Qe7 Qh3 Qg5 Qh6 gxh6 fxg5 Be7 Ra3 Bd6 Ra1 Bf8 Kf2 Kd7 b4 c5 h4 Kc7 e4 Kb7 b6 a5 d6 f5 e5 a4 d7 a3 d8Q d3 e6 a2 b5 f4 e7 c4 e8Q d2 Be2 d1B Qe4+ Nc6 Qee8 c3 Bb2 c2 Qe3 c1N Qdd3 f3 Na3 Be7 Rh3 Ne5 Bd4 Bd8 Nc2 Nf6 Bc5 Ra5 Bf8 Kb8 b7 Nd5 Qf4 Ka7 b8B+ Ka8 b6 Ba6 Bbd6 Nc3 Bc5 Nb1 Qde3 Ra3 Bd3 Rc3 Ne2 Bb5 Kf1 f2 Ng3 Nf3 Nh1 Rg8 Qe1 Rg6 Kg2 Rf6 Qf1 Rf5 Qe3 Na3 Rb1 a1Q Qd4 Qa2 b7+ Kb8 Qe3 Qd5 Ra1 Nb1 Rg3 Kc7 b8R Bc4 Rc8+ Kb7 Ra3 Ba6 Rc7+ Kb8 Re7 Ka8 Rb3 Bb5 Qd4 Ba6 Re1 Bb5 Be4 Bbe2 Bd3 Rc4 Qe3 Rc3 Rh3 Nfd2+ Be4 Rd3 Qg1 f1Q+ Kh2 Bf3 Qef2 Qe2 Qf1 Qe3 Kg1 Bfe2 Bcd6 Qa7 Bc5 Qe7 Rc3 Rd4 Rb3 Rc4 Rbg3 Rc3 Bd3 Nf3+
bRnR3b/5N2/1B1NKP2/2n2Pr1/5q1P/b3r1pR/QpQN2k1/1r2B1b1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 h5 g4 Qd6 gxh5 Qd8 a3 Bd7 Bc4 Bc8 Ba2 b3 Qf3 bxa2 Qe2 Rh6 Qd1 Rh8 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Ke4 Kg5 f4+ Kh4 d4 g5 a4 b5 h3 Kg3 f6 c5 h6 b4 a5 g4 h4 b3 h7 c4 d6 c3 Kd5 e4 d7 c2 a6 e3 a7 e2 Ke6 e1R+ Kf5 Qc7 Nf3 Na6 Nbd2 Re3 Ne5 Kg2 Rb1 a1B Nf7 g3 Rh3 Bb7 d8R Rb8 a8Q Ba3 Nd6 Nc5 Qa4 Ne4 Ke6 Bc5 Qa2 Ne7 Bb2 c1B Bc3 Rg8 h8N Nc8 Nhf7 Ba8 Qdc2 Rg5 Ba5 Bab2 f5 Bba3 d5 Bd4 Ne8 Qf4 d6 Bdc5 d7 Bf8 Nh6 Bg7 Nd6 Bh8 Nhf7 Bcb2 Bb6 Bd4 Ba5 Rc3 Bb6 Bg1 Bf2 Re3 Be1 Bb2 Rf8 Ba3 d8B b2 Rd1 Rbb3 Bb6 Rbc3 Qa4 Rc1 Qc2 Ne7 Rb8 Rb1 Nf1+ Kf3 Rd5 Nc8 Nd2+ Kg2 N6c4 Rc1 Rd8 Rb1 Ncd6 Nc5#
1rB4r/bp6/nk2n1p1/1rNqn3/3N1R1N/R1r1KP1P/BQ1P2bQ/5R2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 e4 Kd7 e5 f6 d6 Kc6 Bb2 Bg4 dxe7 Bd7 e6 Bc8 Be5 fxe5 Ke2 b3 e8N e4 a4 e3 f3 b2 e7 g6 h6 Kc5 a5 c6 h3 Qd7 a6 Nf6 a7 Nh5 h7 Na6 Ra4 Rb8 a8R Kb6 Rf4 c5 Nd6 c4 e8B c3 Nf5 c2 Nh4 c1R Nc3 b1R Ne4 Ng7 Nc5 Qd5 Bd7 Rb5 Qc2 Bd6 Qb2 Rc3 Bg4 Ne6 Bf5 Nb4 Ra3 Na6 Bg4 Bd7 Bf5 Rhe8 h8Q Bc7 Qe5 Rh8 Rb4 Bc6 Qh2 Be5 Rf4 Bd4 Ke1 Be8 Bc4 Bf7 Kf1 e2+ Kg2 Be3 Ba2 e1N+ Kf1 Bd4 Ne2 Nd3 Rg1 Bf2 Nd4 Ne5 Ke2 Nf8 Qb3 Ka7 Bc8 Qc6 Nd3 Bc4 Nc2 Qd5 Qb2 Ne6 Rb1 Bb6 Nd4 Bc5 Kf2 Bb6 Nc5 Bf1 Na4 Bg2 Rf1 Nac7 Ke2 Ka6 Kf2 Ba7 Nc5+ Kb6 Ke2 Na6 Kf2 Nd3+ Ke3 Ne5+
1r4n1/pB2r1PK/1B4r1/NkP1n1Q1/1bpb4/1PR1qB2/2N1R2b/1QR3b1 w - - 0 1 legal: proof: e4 f5 b4 fxe4 a4 g5 h4 b5 hxg5 bxa4 d3 c5 Ra2 Ba6 Ra1 Bc4 d4 Bb3 cxb3 c4 Be3 Qa5 Bc1 Qc5 dxc5 Bg7 Ke2 Bh6 Ke1 Bf8 Ke2 d5 Ke3 Kd7 Kf4 Kc6 Kf5 e5 f4 h5 Kg6 h4 g4 d4 f5 a3 b5+ Kd5 f6 d3 b6 Kc6 b7 a2 f7 d2 Nf3 e3 Be2 h3 Rh2 e4 Ne5+ Kb5 Bf3 e2 Nc6 e1B Na5 e3 Re2 h2 Na3+ Kb4 Nc2+ Kb5 Ba3 h1R Rc1 a1B Bb4 Bh6 f8R Bd4 Rf6 Nc6 b8Q+ Ka6 Qe8 Bg3 Qd8 Rg1 Qe1 d1Q Rd6 Bf6 Rd3 Qd2 Rc3 Rh7 Qd5 Re7 Qe5 Bfg7 Kh7 Qd4 g6 Bh2 g5 Rb8 Qd1 Bf6+ g7 Kb5 g6 Qe4 Qg5 Ne5 Nc6 Rg3 Ba5 Rg4 Bb6 Qd3 Rf2 e2 Na5 e1B Re2 Qe3 Qh4 Qd4 Ra1 Nd7 Rd3 Bb4 Rc3 Re6 Bb7 Ne7 g8B Be3 g7 Beg1 Rb1 Rg6 Qg5 Qe3 Qc1 Re4 Bgd5 Bd4 Qb2 Ree6 Rc1 Ng8 Bf3 Ne5 Qb1 Re7
B2Nb3/pPn3qR/qq4r1/1QR1nkP1/1P2N3/Q4Kb1/p7/1N1Bq1rR w - - 0 1 illegal: No possible last move, all moves rejected
2bN4/bK1RP3/4rpqr/5bk1/1pqB2n1/1B2P1R1/1R2P2Q/qrB1Q2N w - - 0 1 illegal: No possible last move
5K1Q/1B2r1N1/p5P1/R3R1n1/1b1p1QP1/1B1q4/2rPbr1b/Bbb1NNk1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 c4 axb5 c3 bxc3 Na6 c4 fxe4 c5 Nc7 f3 Ne6 f4 Ng5 f5 g6 hxg5 gxf5 Rh5 f4 Rh2 Qb6 Rh1 Qd8 Ke2 Kf7 c4 Kg6 b6 h5 b7 e5 b8N d5 c6 e3 Kf3 e4+ Kg2 a6 Kh3 h4 c7 e2 c5 e1B c6 e3 Qc2+ Bf5 c8Q f3 c7 f2 Qd3 e2 Qb7 Nf6 c8B Rh7 Qd4 Ne4 Bb2 Bb4 Ra5 Re7 Nf3 Qd6 Bg2 f1B Qc7 Bg3 Na3 e1B Nc2 Be2 Nc6 Bef2 Nfe1 Bh2 Bb7 Rc8 Qh8 Bd4 Ba1 Bb2 N6d4 Bc1 Ne3 Qd7 Qb8 Rc2 Ne6 d4 Bf1 Qb5 Ng7 Qd3 Rg1 Be6 Qg3 Ba2 Qf4 Bb1 Bg2 Nf6 Bgd5 Nh7 Kg2 h3+ Kf2 Ba2 Bb3 Bb1 Rf1 Bg1+ Kg3 h2 Rf3 h1R Nf1 Rh2 Re3 Rf2 Kh4 Bh2 Re4 Nf8 Ree5 Ne6 Qe4+ Kf7 g6+ Kf6 Kh5 Ng5 Kh6 Bf3 Reb5 Bd1 B3d5 Be2 Qf3+ Ke5 Qf7 Rf6 Bb3+ Kf4 Re5 Rf5 Ne8 Rf6 Kg7 Rf5 Kf8 Rf6 Ne3 Kg3 Ng7 Kf2 Nf1 Rf4 Qf6 Kg1 Qf7 Rf3 Qf4 Rf2
1Q3n2/NQ1q1b1k/P2pP2B/nNn1bnR1/4KQ2/3RpR2/1Pnq4/1r5B w - - 0 1 legal: proof: e4 e5 c4 b5 d4 bxc4 g4 h5 gxh5 f5 Qd3 a5 Qb3 a4 Qxa4 Ra5 Qc2 fxe4 Qd1 e3 Nd2 e4 Nb1 Re5 dxe5 Bc5 Ke2 Bd6 Ke1 Bf8 Ke2 Kf7 h4 c5 a4 g5 f4 Kg7 e6 g4 f5 d6 f6+ Kh7 h6 c3 h5 g3 a5 g2 f7 c2 a6 c4 Nf3 g1Q Nd4 c3 Na3 Ne7 Ndb5 Qd7 Qd4 Qg5 Rg1 Bg7 f8R Nf5 Na7 Be5 N3b5 Bb7 Rg2 Bc6 Ra3 Qf4 Rg5 Rg8 Ke1 e2 Bg2 Qd2+ Kf2 Rg6 Bh1 Rg7 Rg3 Rg8 Rd3 Rg1 Rg8 Rd1 Rg5 e1N+ Kf1 Qh2 Be3 c1N Qb6 c2 Qb7 Qd2 Rab3 Ne2 Kf2 c1N Bf4 Nc2 Kg2 Kh8 h7 Rf1 Ra3 Nb3 Rf3 Na5 Rad3 Rb1 Kf2 Nh4 Be3 Ng6 Bf4 Kg7 h6+ Kf6 Kg2 Ned4+ Kg3 e3 h8Q+ Qg7 h7 Be8 Qg8 Bf7 h8Q Nd7 Qh4 Nc5 Qgb8 Qh7 Kg4 Kg7 Qf2 Kh6 Qg3 Qg7 Qf2 Nf8 Qg3 Ne2 Kf5 Kh7 Qg4 Ncb3 Ke4 Ned4 Rg6 Nf5 Bh6 Be8 Qf4 Qd7 Rgg3 Bf7 Rg5 Nc5+
1n2n3/1r1n2RP/QB1N3P/1Q1Q2p1/2RNBk2/1K2nqN1/3p2Pr/1q3nb1 w - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 f3 fxe4 Qe2 b5 Qd1 h5 axb5 Bb7 Bh6 Bd5 Bf4 Be6 Bc1 Bg4 fxg4 Qb6 gxh5 Qd8 Kd2 Kf7 c4 Ke6 Kc2 Ke5 h4 g5 b4 a5 b6 d5 h6 a4 c5 d3+ Kb2 a3+ Kc3 d4+ Kc4 a2 b7 d2 c6 e3 c7 e2 c8Q e1Q h5 d3 b5 Ra7 b6 Nf6 Kb3 Kf4 Na3 e5 Nb5 e4 Nd6 e3 Ba3 e2 Rc1 Qf2 Bc5 e1N Rc3 Qe7 Rc4+ Qe4 Be2 Rh7 Bf3 Nc2 Bd4 Qf5 Be4 Ne8 Qc6 Ne3 Ne2+ Kg4 Ng3+ Q2f3 Qb5 Nf1 Qa6 Kf4 Bf2 Bg7 Bg1 Bd4 Rh3 Nd7 b8N Rb7 Nc6 Nb8 Bf2 Bc5 Nd4 a1N+ Ka4 Nc2 Kb3 Nce3 Rh1 Ng4 Rh4 Rbc7 b7 Qg6 Rh1 Ne5 Bg1 Ned7 Rh3 Nc6 b8Q Qf5 Qbb5 Rb7 Qb1 d1N Qba2 Nde3 Bf2 Re7 h7 d2 h6 Ncb8 Q2a5 Bb6 Qd5 Re6 Qa5b5 Ba7 Nc8 Rc6 Nd6 Rcb6 Rc7 Rc6 Rh1 Rc1 Rh4+ Ng4+ Bd3 Nh2 Nc2 Ne5 Ne3 Rh1 Bc2 Nf1 Bd3 Rh2 Rg7 Ned7 Nc2 Bb6 Be1 Bg1 Bf2 Qg6 Bb6 Qge4 Nd4 Ke3 Bc2 Nf2 Rf4 Nd1 Nc6+ Qd4 Bb1 Qc5 Rd4 Qc1 Be4 Qa1 Rc4+ Kf4+ Rc3 Nde3 Nd4 Qe1 Rc4 Qb1+
7q/QKq2rr1/1Qn1RPkp/N1r1R3/1pRP1BNP/Q2q1B2/2r2n2/b7 w - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Na6 g4 Rb8 f4 Nh6 b4 axb4 g5 Ra8 f6 Nb8 f5 Be6 g6 Bf7 gxf7+ Kd7 Qe2 Ng8 Qg4 Ra4 Qd1 Ra8 Ke2 g5 Kd3 c5 Kc4 e5 Kb5 c4 h4 h6 a4 c3 d3 c2 a5 b3 d6 b2 a6 g4 a7 g3 Nh3 g2 Bf4 c1R Ra5 g1R Nf2 e4 Be2 e3 Qb3 Bg7 f8Q Nc6 f7 Rc8 a8Q Nf6 Ng4 Rc2 Na3 b1Q Nc4 Rh7 Qa7 Ne4 Bf3 Ba1 d4 e2 f6 Ke6 d7 Kf5 Qa3 e1Q f8R Qg3 Re8 Rf7 Re6 Qh8 Kb6+ Kg6 d8Q Nf2 Qc7 Qd1 Rd5 Qd3 Rde5 Rg2 Rc1 Rg1 Kc5 b5 Kb6 b4 Kb7 Rg2 Na5 Rc5 Rc4 Rg8 Qba4 Rgg7 Qb5 Qh2 Bg5 Qf4 Qbb6 Qg3 Rf5 Qd6 Be3 Rg1 Bf4 Rc1 Rd5 Rc2 Rde5 Qxc7+
Nkq5/q2RN2B/1BRn1p2/K3bn2/PnP5/1Q3Q1n/P1p1r3/Q4qrN w - - 0 1 legal: proof: g4 b5 f4 e5 b3 h5 gxh5 exf4 Bb2 a5 Bc1 a4 bxa4 Ba6 Ba3 Bb7 Bc1 Bc8 c4 bxc4 d3 c3 Bh3 c2 Bg2 Ra5 Bf1 Ra8 Na3 c5 Bg2 c4 Nb1 c3 Bh3 Ba6 Bf1 Bc4 dxc4 Bc5 Bd2 Be7 Bc1 Bf8 h4 d5 e4 Kd7 e5 Kc8 h6 g5 h5 f3 h7 g4 h6 g3 e6 g2 e7 d4 e8N d3 Ne2 g1Q Ng3 Bd6 Nc7 Na6 Be3 c1N Bb6 c2 Kd2 f2 Kc3 d2 Qf3 Nb3 Bd3 f1Q Rh5 Qf8 Nh1 Na5 Rc5 Kb8 Rc6 Ne7 Bf5 Rg8 h8Q Nb4 h7 Ra6 Na8 Qc8 Qg7 Qgf2 h8Q Nb7 Bh7 Nf5 Qgg3 d1N+ Kb3 Rg7 Nc3 Be5 Nd5 Nbd6 Ne7 Rg4 Qh3 Rg1 Qhg3 Qc5 Qhg7 Nf2 Rd1 Nh3 Rd4 Ne8 Rd7 Ned6 Ka3 Ra7 Qb3 Ra5 Qgf3 Qe3 Qh8 Rd5 Qf6 Rd2 Qg7 Re2 Qf6 Bf4 Qa1 f6 Bd8 Qa7 Bb6 Nd5 Qab2 Nc3 Kb4 Be5 Qa1 Nd5+ Ka3 Nc7 Kb4 Na6+ Ka5 Nb4+
1Q6/qr1k3N/1Prb1Q2/1R2n1p1/R3nK2/NP1q4/nr1p3P/1B1BQ1Rn w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Nh6 f6 Ng8 g3 Bb7 g4 Bc8 f4 h6 g5 Kf7 Be3 Ke6 f5+ Kd6 g6 Bb7 Bd2 Bd5 Bg5 Bf7 gxf7 hxg5 Ke2 e5 Kf3 a5 c4 g4+ Ke4 g6 b3 d3 b6 g3 Qc2 g2 Qa2 a4 Ke3 e4 Ne2 g1R Nd4 a3 Qc2 d2 Qd1 a2 Qc2 d1N+ Kf4 e3 Na3 e2 Qe4 e1N Qe3 Nf3 Bd3 Rh7 Bb1 Nf2 Ne6 Ne5 Ng5 Nbc6 Qe1 Rg2 Rg1 Nb4 c5+ Kc6 Ne6 d5 Ng5 Bd6 f8R d4 f7 d3 f6 Rg7 Nh7 Nh1 Re8 Rb2 f8Q d2 f7 Kd7 c6+ Kc8 c7 Nf6 Qh8 Ne4 f8Q Kd7 Qf6 Ra5 Qg8 Rc5 Qgf8 Rc6 Re6 Qa8 Qb8 Qa6 Re8 Qd3 Re6 Re7 c8B+ Ke8 Bb7+ Kd7 Ba6 Qd5 Be2 Qd3 Bd1 Rf7 Bbc2 Re7 Rc1 a1Q Bb1 Rf7 Rc5 Na2 Rb5 Rf8 Qa8 Rb8 Re8 Rb7 Qa7 Be7 Ra8 Bd6 Qb8 Nac3 Nc2 Qa7 Na3 Na2 Qbh8 Qb8 Ra4 Qa7 Qb8 g5+
1KB2NQq/b1n1P3/B2N3p/5P1b/B1q3p1/2q1P3/k1n1R3/r2qbQQR w - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 axb5 e5 dxe5 Bd6 b6 Be7 b5 Bf8 h4 g5 Rh2 a5 Bf4 g3 Bd2 g4 Bb4 cxb4 Rh1 Ra7 Bh3 Rc7 Bf1 Rc6 Qd3 Rg6 Qd1 Rg5 hxg5 Bc5 Qd2 Be7 Qd1 Bf8 Kd2 Kf7 Ke3 Ke6 Kd4 d5 f4 a4 c4 a3 f5+ Ke7 Kc5 g2 b7 b3 g6 h6 e6 d4 b6 b2 g7 d3 Nf3 g1B+ Nd4 d2 Nc3 b1Q Ra2 Nf6 g8B Bd7 Ne4 Be8 Nd6 Nc6 b8Q Qc1 b7 Nb4 Qa7 Nfd5 b8Q+ Nc7 Kb6 Bh5 Kb7 Nc2 c5 Be3 Qe1 d1Q c6 Bf2 Rb2 a2 e3 a1Q Ba6 Kf6 Qf1 Ke5 e7 Bg7 Bf7 Be1 Ne6 Kd5 Be8 Bd4 Nf8 Qa2 Qc8 Qc4 Kb8 Qa1 Ra2 Qac3 Qb7 Kc5 Qb1 Rg8 Qc1 Kb4 Bd7 Kb3 Qg1 Nb4 Re2 Nc2 Qf1 Ka2 Qg1 Na8 c7 Bb6 Ba4 Ba7+ Kb7 Rg6 Qe6 Qe8 c8B Nc7 Qg8 Rf6 Qd2 Re6 Qd5 Re5 Qf3 Ra5 Qff1 Kb1 Bc6 Ra1 Bcb5 Ka2 Ba4 Bc5 Kb8 Qd8 Nb5 Q8d4 Nd6 Qh8 Be6 Bd4 Bec8 Ba7+
3q2nR/B1N1P1b1/1N1P1rB1/n4P2/qQQ2pb1/bq5K/B2Rp2N/3b2k1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 Nh3 gxh4 Ng1 f4 Ra5 Qd6 Ra1 Qd5 f3 e5 Ra2 a5 Ra1 Ra6 Ne2 Rf6 Ng1 Rf5 exf5 e4 Rh3 e3 Rh1 Qe4 fxe4 Bb4 Qg4 Be7 Qd1 Bf8 d4 Kf7 g4 Kf6 b4 Kg5 e5 h5 b6 c5 d5 h3 b5 Kh4 e6 Kg3 e7 h4 g5 h2 d6 a4 b7 h3 b6 a3 g6 a2 g7 e2 Qa4 c3 Qb5 c4 Qc5 c2 Be3 c1B Nd2 c3 Bg2 c2 Nc4 Ba3 Rd1 a1Q Bc6 c1Q Be8 Kg2 Bg6 Qc2 Nf3 Nc6 b8Q Na5 b7 Bd7 Nb6 Rh6 Qc4 Qb3 Bg1 Qaa2 Rd2 Ba4 Bf2 Nf6 g8B Bg7 Nc8 Qac2 Ba7 Qca2 B8f7 Ng8 Nb6 Qac2 Qe8 Qe4 b8N Qa8 Na6 Qd8 Rf1 h1B Qeb5 h2 Qbb4 Bab2 Nc7 Ba3 Bh7 Rf6 Bhg6 Qe3 Bd5 Bd1 Bdf7 Qb3 Bd5 Kh3 Kf2 Bg2 Rg1 h1Q Nh2 Qa4 Be6 Be4 Rg5 Qf3+ Kg1 Qfb3 Rh5+ Kg3 Rh8 Bf3 Bd5 Bh5 Kh1 Kf2 Bdf7 Ke1 Kg2 Bf3+ Kh3 Kf2 Qe4 Kg1 Qd3 Qc2 Ba2 Qcb3 Qdc4 Bg4+
6qq/Q1Pq1N2/1P2k1rn/1R3p1N/1N6/nn1q2p1/PK1bBBb1/1BR3Q1 w - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 Qd3 cxd4 Qd1 h5 gxh5 b5 b4 a5 bxa5 Rh6 Nd2 Raa6 Nb1 Rab6 axb6 Rh8 Kd2 Ke7 h4 g5 e4 d5 c4 b4 Kc2 g4 h6 d3+ Kb2 f6 h5 d4 e5 g3 c5 b3 h7 d2 c6 f3 c7 d3 e6 f2 h6 Na6 Be2 f1Q Na3 Qh3 Rb1 Bb7 Nc2 Nc5 Nb4 Bg2 Qf1 d1Q Be3 d2 Bf2 Kd6 e7 Ke6 e8B f5 Bc6 Bd6 Be4 Bf4 Qe1 Qh5 Nh3 Be3 Qg1 Qde8 Ka3 b2 B4d3 Nb3 Nf4+ Ke7 Rc1 b1N+ Kb2 Na3 Bb1 Qhf7 Nh5 Ke6 Rh4 Qf1 Rd4 d1Q Rd5 Bd2 Rb5 Qff8 Bf3 Qd3 Bg4 Nf6 Be2 Rg8 h8Q Rg6 h7 Ng8 Qc3 Qed8 h8N Nh6 Nf7 Qg8 Qc5 Q3d7 Qf8 Qa8 Qb8 Qf1 Qa7 Qaf8 Bd1 Qfd3 Be2 Qfg7+ Ne5 Q7h7 Nf7 Qhh8+
4QR2/n1p2B2/1NRB1BP1/1P1pn3/QKqP1r2/2Rqbqk1/4bnq1/2N5 w - - 0 1 legal: proof: b4 b5 c4 a5 h4 f5 e4 g5 exf5 gxh4 c5 Bh6 a4 Ra6 axb5 Rb6 cxb6 axb4 Qe2 Bg7 Qd1 Bf8 f4 Kf7 g4 Kf6 b7 h5 d3 e5 Kd2 h3 Qc2 h4 Bg2 e4 Ba3 b3 Kc3 b2 Bf3 e3 Nd2 b1Q Bg2 e2 Kc4 e1Q Qa4 h2 Ne2 h3 Nc1 Rh4 Bd6 Nc6 b8Q Na7 Ra3 Qe2 Bd5 Qg2 Rc3 Qa2+ Kb4 Ne7 Bf7 Bh6 Nc4 Ng6 Nb6 Ne5 Re1 h1Q g5+ Kg7 g6 Kf6 Rc6 h2 Re3 Qd1 Qa8 h1N d4 Nf2 Rh3 Qf8 Rhc3 Qd3 Qb8 Bb7 Qe8 Bg5 R6c5 Bf3 Rc6 Be2 Be7+ Kg7 f6+ Kh6 f5 Kh5 Bg8 Kg4 f7 d5 f6 Qg7 f8B Kg3 f7 Qf6 Bd6 Qff3 Bfe7 Rg4 f8R Be3 Bf7 Rf4 Bf6 Qac4+
r1Nr2N1/KP1Q2rn/3RR1qq/1P1qp1Bb/1BPk4/1r6/1pn5/Q1B1R3 w - - 0 1 legal: proof: e4 c5 a4 f5 exf5 b5 b4 g5 h4 Bg7 Be2 Bc3 dxc3 gxh4 Bc4 Qa5 Bb3 c4 axb5 cxb3 c4 Qc7 c3 Qd8 Ke2 Kf7 Kd3 Kf6 Kd4 e5+ Kc5 a5 g4 h5 f4 d5 b6 d4 g5+ Kf7 f6 Ke6 f7 h3 f8B b2 f5+ Kf7 f6 Ke6 f7 a4 b5 d3 g6 d2 g7 a3 b7 h2 Nh3 a2 Be7 h4 f8B Qd3 Kb6 Nf6 g8R Nc6 c5 Kd5 c4+ Kd4 Nf4 h3 Nd5 Nh7 Re1 h1R Nf6 h2 Rg6 Bg4 Nc3 Rg1 Ng8 h1Q Na4 Qh6 Bg5 Rd8 Re6 Nb4 c6 Qdg6 c7 Bh5 c8Q Nc2 Ka7 Rg3 Qa8 Rb3 Nb6 Rb8 Rb1 Rd8 Nc8 a1R+ Kb6 Raa3 Bb4 Rg3 Qa5 Rab3 Qa1 Rg4 Ka7 Rg2 Qf3 d1Q Qc6 Qf3 Qd7+ Qd5 Rf1 Rgg3 Rff6 Rg2 Rd6 Rg1 Nge7 Rhg8 Rfe6 Rg7 Ng8 Rf1 Bcd2 Rff8 Re1 Rfe8 Bc1 Rf8 Nb6 Rb8 Nc8 Re8 Nce7 Red8 Nc8 Ra8+
k3Nr2/Ppn3KR/B1b1rB2/1PN1pQ2/1n5R/1P3q2/4q3/QN1rBn1r w - - 0 1 legal: proof: d4 c5 g4 cxd4 e4 h5 gxh5 f5 exf5 a5 Qd3 e6 Qb3 a4 c3 Bb4 cxb4 a3 Qc2 Nh6 b3 Ng8 Qb2 axb2 Kd2 g5 Kd3 d5 h4 Kd7 f4 Kc7 a4 g4 f6 g3 h6 g2 f7 Qd6 f8Q Kc6 h5 Nf6 a5 Qd7 a6 Qg7 f5 Kc7 h7 Ng8 h6 Ra7 f6 Qf7 Ra4 Bd7 Nf3 g1R Nh4 Nc6 Nf5 Nge7 Bd2 e5 Be1 Be8 Nd6 Kb8 Be2 Rhg8 h8B Ka8 h7 Rf1 Rh4 Rh1 Bg7 Qh5 h8Q Qg4 Qf7 Rf8 Rh7 Bd7 Ne8 Qf3+ Kc2 d3+ Kc3 d4+ Kc4 d2 Kc5 d1R Kd6 d3 Qe6 d2 f7 Nd8 Qf5 Qf2 Bf6 Nec6 Qg8 Qf1 Qg1 Ne6 Bd3 Qf3 Qf1 Na5 Ke7 Bc6 Be2 Nc7 Bc4 Rg8 f8N Qe2 Nd7 Rf8 Nc5 Qf3 Nc3 b1Q Qg1 Qbe4 Nb1 Qee2 Bb5 Rc1 Qd4 d1N Qa1 Ne3 Bd3 Rd1 Bc4 Rh8 Kf7 Nf1 Kg7 Rf8 Ra2 Qee4 Rah2 Qee2 Bb5 Nc4 R2h3 Na3 R3h4 Nc2 Bd3 Kb8 Bc4 Ra8 Bd3 Ka7 Bc4 Rc8 Bd3 Ka8 a7 Rd8 Ba6 R8d6 b5 Re6 Be7 Nb4 Bd8 Qc2 Bf6 Qce2
1B1QqBbq/p1rP1k1N/rR6/q2p1N1q/bbP2RP1/Q5K1/R5n1/6Q1 w - - 0 1 legal: proof: e4 d5 h4 b5 a4 c5 axb5 g5 d4 Nd7 dxc5 Ndf6 Bc4 gxh4 e5 Ne4 Bd3 Nd6 exd6 f5 Be4 fxe4 c4 e5 b4 h5 g4 h3 f4 e3 d7+ Kf7 b6 h4 b5 e2 Kf2 e4 c6 h2 c7 h3 f5 e3+ Kg3 Rh6 f6 Bb4 b7 Qe8 b8B Bb7 c8Q Ne7 b6 Bc6 b7 Qh8 Ba3 Ng6 Nd2 Ba4 Ne4 Nh4 Ra2 Ng2 Nf3 Rg6 Rf1 h1Q Qb1 h2 Nd4 e1Q+ Rff2 e2 Nf5 Qd2 Qg1 e1Q Qd8 Qee2 Rf4 Qee1+ Nf2 Qee8 Ne4 Rh6 Nc5 Rg6 Ne6 Rh6 Nf8 Rg6 Be5 Rc8 b8R Rc7 Rb6 Qh5 Nh7 Qc3+ Qe3 Qha1 Bd6 h1B Bf8 Qd4 Qg1 Qc5 Bd6 Qa5 Bf8 Qae5 Bd6 Qh8 Bf8 Qe8 Bb2 Ne1 Be5 Be4 Bed6 Ng2 Be5 Rc5 Bb8 Rc7 Bd6 Ke6 f7 Rh6 f8Q Rf6 Qh6 Kf7 Bf8 Rfc6 Qd6 Bb1 Rb5 Ra6 Rb6 Bc3 Qa3 Bb4 Nf6 Bd3 Nh4 Bh7 Nf5 Bg8 Nh7 Qhe5 Qgc1 Qa1 Qg1 Qh8
n5N1/1k2n1Q1/R3n1B1/KN2qN2/Pr2pn1p/nR2P2B/1b3Pb1/nB5Q w - - 0 1 legal: proof: d4 a5 c4 c5 h4 g5 hxg5 d5 b4 axb4 cxd5 Ra3 Bd2 Ra6 Bc1 Ra8 g4 b5 g6 c4 g7 f6 g5 Ra6 g6 Rc6 Bg5 Rc5 dxc5 fxg5 Kd2 Kd7 a4 Kc7 d6+ Kb7 e3 h5 d7 e5 Kc2 h4 Qd5+ Nc6 Rh3 b3+ Kc3 b2 Be2 g4 Bd3 e4 Qf5 g3 Qd5 b4+ Kc2 g2 Ne2 g1N Nd4 b3+ Kc3 Qc7 d8Q Qe5 Na3 Ne7 g8B Bg7 Rf3 Nh3 Qf8 Nf4 Rb1 Bh3 Bh7 Bg2 Nb5 Bf6 Qdf7 Nd8 Kb4 c3 g7 c2 g8N c1N Q8g7 Nde6 Bg6 Rh5 Nf5 Rh7 Ra1 b1N Ka5 b2 Ra3 Nc3 Rb3 Ncd5 Bb1 Nb6 Rg3 Na8 c6+ Kb8 c7+ Kb7 Rg5 Rh6 Rh5 Rh7 Rh6 Rh8 Bc2 b1N Bd3 Na3 Bb1 Qc5 Qff8 Bb2 Qd8 Rh7 Qd1 Qe5 Qh1 Rh8 Nf6 Rd8 Ng8 Rd4 c8B+ Kc6 Bf7 Rb4 Bd7+ Kb7 Rg6 Nec7 Ra6 Nce6 Bfe8 Ncd3 Bh5 Ne1 Bg6 Nec2 Nd4 Ng5 Bh3 Na1 Nf5 Nge6
1QRb4/8/Nb1BRPP1/4n1Nb/2PpBbNb/p4rn1/Q5rB/2Kn3k w - - 0 1 legal: proof: d4 b5 e4 h5 a4 c5 axb5 f5 exf5 cxd4 f4 g5 Qf3 g4 Qe2 Qb6 Qd1 Qf6 g3 Qg5 fxg5 h4 Be2 hxg3 Bd3 Ba6 Bf1 Bc8 Kd2 Kf7 h4 d5 b4 a5 c4 e5 b6 e4 g6+ Kf6 b5 Ke5 h5 Kf4 b7 e3+ Kc2 g2 f6 Kg3 h6 d3+ Kb2 a4 b6 e2 h7 e1B Bg5 d2 Rh4 Nh6 Be2 Nf5 Na3 Nd7 b8N Ne5 b7 Be7 Nc2 Bd8 Nh3 Kh2 Bf3 g1B Be4 g3 Bf4 Bgb6 Qb1 d1N+ Kc1 d4 Qa2 a3 Rb1 Ra5 Ng5+ Kg1 Ne3 g2 Na6 Ng3 b8B Bg4 Rh6 Bh5 Ng4 Kh1 Bd6 Rb5 Rb2 Rb3 Re2 Rf3 Re3 Re8 h8Q g1B Qf8 Bh2 Rh8 Nf5 Rg8 Bh4 Re2 Re7 Qe8 Ng3 Qb5 Ba5 Qb8 Rb7 Re3 Rb2 Re8 Bdb6 Rc8 Rg2 Ba8 Nd7 Re6 Ne5 Bb7 Bd8 Be4 Bab6 Be3 Nf5 Bg1 B2g3 Bh2 Bf4+ Qd2 Nde3 Qc2 Ng3 Qa2 Nd1+
6RN/1Rqq1R2/3n3p/K1B2PQ1/QN1nq2b/1q3k1P/3P2qp/1B1b1nQ1 w - - 0 1 legal: proof: c4 g5 a4 b5 axb5 d5 Qb3 dxc4 Qc2 g4 Qd1 g3 e3 Qd3 h3 Qc3 Nf3 Kd7 Bd3 Nf6 Ke2 Qb3 Qg1 Ng8 Qh2 gxh2 Ke1 Kd8 Be2 Qd3 Kd1 Qd4 Kc2 Ke8 Kd1 Qd5 Kc2 Qd8 e4 f5 Rg1 e5 Rh1 a5 Ne1 h6 Bf1 Ra6 Bd3 Rf6 Be2 f4 f3 Rf5 exf5 e4 Ra4 e3 Ra1 Rh7 Bd1 Re7 Be2 Re4 fxe4 Qg5 Bd1 Qe7 Be2 Qd8 Kc3 Ke7 b4 Kd6 g4 Ke5 g5 c5 b6 a4 b5 f3 b7 Kf4 e5 f2 b6 f1N g6 a3 g7 a2 e6 Qg5 e7 Nc6 b8R Bb7 e8Q Qg2 Nc2 Nf6 g8Q Be7 Nb4 Nd4 Rg1 Bf3 Qa4 Ne8 b7 Nd6 Ba3 Bh4 Bd3 Bd1 Qg5+ Kf3 Rf8 e2 b8Q e1Q Rf7 Qe5 Qb6 Qeg3 Bb2 Qg4 Na3 Qe4 Rb1 a1Q Nb5 Qa2 Bc1 Qa3+ Rb3 Qa2 Bb1 Qa3 Qa8 Qa7 Ba3 Qe7 Qa4 Qd7 Kb2+ c3+ Ka2 Nb7 Nd6 c4 Rb2 c2 Qba7 c3 Qc5 Nb5 Kb3 Nd4+ Kc4 Nc6+ Kb5 c1Q Qca7 Nd4+ Kb6 Nd8 Ka5 Qcc2 Qc5 Qb3 Qb6 c2 Qa7 Qge2 Rg2 Nb5 Qg1 c1Q Na2 Qbc4 Rg7 Nf7 Qg6 Na7 Rb7 Nd8 Nf7 Qb3 Nh8 Ne6 Rf7 Nd4 Bd6 Nc8 Nb4 Qcc6 Bc5 Nd6 Qf6 Qf2 Rg8 Qg2 Qg5 Qcc7+
2r1r2r/2Rn2B1/3qRPn1/NBq2NKn/2Qpq2r/pP6/1QP1R3/3N1k2 w - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 f5 g6 g3 Bb7 Ra5 Ba6 Ra1 Bc8 h3 g5 Ke2 g4 Kf2 Bh6 Ke1 Bf4 gxf4 Bb7 Bd3 Ba6 Bf1 Bc8 Bd3 g3 Ra3 Bb7 Ra6 Bd5 Bf1 Bf7 Ra4 Bh5 Ra1 Bg4 hxg4 Qb6 Nf3 Qc7 Ng1 Qd8 Kd2 Kf7 b3 Kf6 b6 a5 b7 d5 Rh3 h5 Qe1 e5 Ba6 g2 Bb5 a4 Rh4 e3+ Kd3 e2 Rh2 e4+ Kd2 a3 Bb2 h4 Nf3 g1Q Qc1 e1R Re2 h3 Nh4 h2 Nc3 h1N Nd1 Nd7 b8N Ne7 Nc6 Ng6 Na5 e3+ Kd3 Ng3 g5+ Kg7 Qb1 Nh5 f6+ Kf7 f5 Rc8 Bc3 Qc7 Qb2 Qd6 Rd2 e2 Rc1 Ke8 f7+ Ke7 f8R Qf2 Rd8 Rh1 Rf8 e1R Re2+ Qe5 Rb1 Kd6 Rf7 Qe4+ Kd2 d3 Bg7 Kc5 f6 Kb4 Nf5 Qc5 Re7 Rh4 Re6 Rhe8 Rc6 Reh1 Rc7 Nge5 g6 R1h2 Bh6 R2h3 g7 Ng6 g8Q Rh2 Ke1 d2+ Kf1 R2h3 Bg7 Rh2 Nde3 R2h3 Rbe1 d1Q Kf2 Qd2 Qf7 d4 Nd1 Qdf4+ Kg1 Qfd6 Kf2 Rh1 Qd5 Nhf4 Kg3 Rhh8 Kg4 Nh5+ Kg5 Rh3 Nf2 Rh4 Qc1 Kc3 Qf7 Qb7 Re6 Qbd5 Qb2+ Kd2 Nd1 Qf3 R1e5 Qe2 Re3 Ke1 Qg8 Kf1 R3e5 Qd3 Re2 Qe4 Qf7 Re7 Qg8 Rb8 Qc8 Ree8 Qa6 Rbc8 Qc6 Qce5 Qc4 Qec5
2N1N2Q/n1pn1r1n/kq1R1B2/8/1R4P1/P1r4n/pBK1PQ1r/NB1nr3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Qg5 Qd1 Qd8 Nh3 a5 Ra2 b4 Rg1 b3 Rh1 Ba6 Ra3 Bb5 axb5 a4 Ra1 a3 Ng1 a2 Kf2 Ba3 bxa3 Nh6 Ke1 Ng8 g4 Kd7 d4 Kc8 Kd2 Kb7 d6 h5 d7 f5 d5 h3 b6 f3 d6 h2 Qc2 b2 Qc4 f2 Qf7 h4 Kd3 h3 Nc3 b1N Kc2 f4 Bb2 f3 Na4 Nf6 Bg2 Nc3 Rb1 Ka6 b7 f1N Nb6 f2 Be4 Nb5 Nf3 Na7 Nd2 Nh7 Nb3 Qf6 d8N Nd7 Ne6 Rae8 b8Q Re7 Rg1 h1R Nc8 h2 Na1 Qg6 Qf5 Rf7 Ng7 Qe6 Ne8 Ne3+ Kd2 f1R Qf2 Nd1 Kc2 Rf3 Rg3 Rf7 Rd3 Re1 Bf5 Rhg1 Be4 h1N Rd4 Ndf6 d7 Rg3 d8B Qb6 Rd6 Nd7 Bdf6 Rb3 Bbe5 Rh3 Rb4 Rh2 Bb2 Rhf8 Qd4 Nhf2 Bg6 Nh3 Qf2 Re7 Qa8 Re3 Qh1 Rg2 Qh2 Rf7 Qe5 Rh2 Qh5 N7g5 Qh8 Rc3+ Kd2 Rc5 Bb1 Nh7 Kd3 Rc3+ Kd2 Re3 Kc2 Rc3+
2RrnnQ1/1k2r1PN/3b4/2nbB1q1/Rp1P4/3NB2b/RN1p1pP1/Q5K1 w - - 0 1 legal: proof: f4 a5 c4 d5 d4 g5 h4 c5 hxg5 e6 e3 e5 cxd5 c4 b4 axb4 Bd3 cxd3 fxe5 Bd6 Nd2 Be7 Nb1 Bf8 Kf1 Kd7 a4 Kc7 e4 h5 d6+ Kc6 d7 b5 g6 f5 a5 b3 a6 h4 e6 h3 a7 h2 e5 f4 e7 b2 e8Q b4 g7 f3 e6 Qg5 d8B+ Bd7 e7 Qb5 Ra4 Nf6 Nd2 b1B Nh3 Ba2 Bc7 Qg5 Nc4 Kb7 Nf4 Bh3 Nb2 Nbd7 Be5 Rd8 a8R Bd5 Be3 d2 Nfd3 Rg8 Rg1 h1N Rc8 Nf2 Qa1 N2e4 Qf7 Nec5 e8N Rh8 Qg8 Bd6 Rh1 Nf8 Kg1 Nfe4 Nf6 Rh6 Ng4 Re6 Nf6 Re7 Nh7 Nf6 Ra2 Ne8 Ra4 Bf5 Rh6 Bh3 Rg6 Bc7 Rga6 Bb8 Ra2 Bd6 R6a4 f2+
1r4rn/N1b4N/1Rq3Q1/K1PB4/2bBpB1P/nb1k1P2/1pp4R/5RQq w - - 0 1 legal: proof: c4 c5 g4 f5 e4 h6 exf5 h5 b4 a6 b5 axb5 gxh5 bxc4 d4 c3 dxc5 Ra7 Bh3 Ra4 Bf1 Ra8 a4 Kf7 h4 Kf6 h6 Ke5 h7 Ke4 a5 g5 f6 d5 f7 b5 a6 e5 a7 d4 Qa4 b4 Qd1 d3 Be3 b3 Be2 g4 Rh3 b2 Na3 g3 Bf4 g2 Nf3 Na6 Nb5 Ne7 Rh2 Rb8 a8Q+ Qd5 Na7 Nb4 Qc6 Rg8 h8B Ng6 Ra6 Bd6 f8R Be6 Rb6 Bc7 Ng5+ Kd4 Nh7 g1Q+ Bf1 d2+ Ke2 Qgh1 Bg2 Qd6 Qg1 Nc2 Bd5 Na3 Rf7 d1B+ Ke1 c2 Kd2 Bf3 Rf6 e4 Qe8 Ne7 Qeg6 Be2 Qf7 Bd7 Be3+ Ke5 Kc3 Ba4 Kb4 Bb3 Ka5 Ng6 Rf3+ Qf6 Bf4+ Kd4 Bg7 Nh8 Qfg6 Qe5 Re3 Bec4 f3 Qf6 Re1+ Kd3 Rf1 Qd6 Bd4 Qc6
2b3K1/1Q1p4/1N3R1P/q1Bpr1pq/n3Qr1P/1bkN4/2P3rB/nRB2R2 w - - 0 1 legal: proof: d4 b5 f4 e5 fxe5 b4 d5 b3 axb3 c6 b4 cxd5 b5 Qg5 Ra2 Qe7 Ra1 Qd8 h4 Bb7 h5 Qc7 g3 Be7 Bg2 Qd8 Be4 Bh4 gxh4 Bc8 Bg6 hxg6 Kd2 Ke7 Ke3 Ke6 Kf4 a5 e4 f5 b4 a4 h6 a3 b6 a2 b7 Qe8 Kg5 f4 b5 f3 b6 f2 Nc3 f1B Nf3 Nc6 b8B Bd3 b7 Nf6 Bd6 Rf8 b8B Na5 Bc5 Bc4 Rb1 a1Q Na4 Nb3 Nb6 Qa5 Rf1 Na1 Ne1 Bb3 Qe2 Rf7 Qa6 Re7 Nd3 Rf7 Qb7 Rf8 Kf4 g5+ Kf3 g4+ Kf4 g3 Kg5 Rf7 Kg6 g2 Bbd6 Ng8 Kh7 g1R Kh8 g5 Bc7 Rf4 Kh7 Kf7 e6+ Kf6 e7 Qh5 e8R Ne7 e5+ Kf5 e6 Ke4 Rd8 Rg2 Rf8 Rb8 Rf6 Ra8 Bb4 Kd4 Bc5+ Kc3 Kg7 Ng6 e7 Nf8 e8Q Ne6+ Kg8 Ra6 B5d6 Nc5 Qe4 Na4 Bc5 Ra8 Bb8 Ra6 Na8 Re6 Nb6 Rff2 Bbf4 Re5 Bh2 Rf4
qr6/P1Nk1pB1/p4Pn1/2Q1B1r1/2p3nK/PQ1r1R2/3qb1B1/R1bR3N w - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 e5 b4 d5 c4 bxc4 b5 a6 b6 dxe4 d4 Qd6 dxe5 Qd5 Qg4 Qb7 Qd1 Qa7 bxa7 Rh7 Qd2 Rh6 Qd1 Rh8 f4 g5 Kf2 c5 Kg3 c3 h4 c4 f5 g4 a3 c2 f6 e3 e6 e2 h6 e1R h5 Nc6 e7 Re4 h7 Bg7 h6 Rf4 Kh4 Rd4 Bg2 g3+ Bf4 c1Q Nh3 Rd3 Nf2 Rb8 Qb3 Kd7 e8R Qd2 Be5 Nge7 Rd1 Rg8 h8Q Bb7 h7 Bh6 Nc3 Rg5 Qf8 Ng6+ Kh3 Bc8 h8B Bb7 Nb5 Ba8 Bc7 Nce5 Qc5 Ng4 Re3 Bf3 Be5 Be2 Nh1 Ra8 Bd5 g2 Nc7 g1Q Bg2 Rb8 Rf3 Qge3 Bg7 Qe4 Kg3 Qa8 Kh3 Rf5 Kg3 Be3 Kh3 Rg5 Kg3 Qb4 Kh3 Bc1 Kg3 Qd2 Kh3 Ne7 Kh4 Ng6+
1Q3q1k/q3B3/1B1R1pPp/rNNr3P/1Q1R1b1p/6B1/bP1q2n1/1QK4r w - - 0 1 illegal: No possible last move
2K4b/Q1R2N2/p3qP1p/kqb4r/Nn1q1b1B/1p2PBr1/2P2BQ1/1N1R4 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 Qf3 gxh4 Qd1 f5 a3 fxe4 bxc5 b4 a4 e3 Bc4 Ba6 Bf1 Bb5 axb5 Qc8 Qf3 Qc7 Qd1 Qd8 f3 e6 Ke2 e5 Kd3 e2 Kc4 e1B Kb3 Nc6 Kb2 Nb8 Nc3 e4 Ra4 e3 Rh3 e2 Rh1 Nc6 Nb1 Nd4 Ra5 Nf5 Ra1 Ne3 dxe3 Bf2 Qd6 Bg3 Qd1 Be1 Kb3 d5 Ka4 Kd7 g4 Kc7 Ka5 b3+ Ka6 h6 g5 d4 f4 d3 g6 h3 b6+ Kc6 g7 d2 b7 h2 b8B Qd7 f5 Be7 f6 Qd5 Nf3 Bf8 Bg2 Bg3 Ng5 e1B Nf7 Bf4 Bf3 Ne7 g8Q Bg7 Bb2 Qe4 Bc3 Nd5 Ra4 Qe7 Rc4 Qe6 Qc1 d1Q Qa3 Beg3 Be1 Qd4 Bf2 Rh7 Be5 Bh8 Rd1 h1Q Bc7 Bh2 Qg2 Rg7 Ba5 Bhg3 Bae1 Qh5 Qa2 Kc7+ c6 Rag8 Qa3 Rg5 Rc3 Bh2 Bh4 Bd6 Bef2 Bhf4 Qa2 Rf5 Rc5 Rg3 Rc3 Kc8 c7 Ba3+ Rc6 Bc5 Qa5 Kd7 Kb7 Nb4 c8N a6 Qb6 Rd5 Qa7 Re5 Ncd6 Qhf5 Nb5 Qfd3 N5c3 Rh5 Na4 Qf1 Ng5 Qfd3 Rc7+ Kd6 Ne4+ Kd5 Ng5+ Kc4 Nf7 Kb5 Kb8 Ka5 Kb7 Qb6+ Kc8 Qdb5 Rd3 Qbd6 Rd1 Qe6+
1n4Rn/n1r1B1R1/3p1Qp1/4B1PQ/BNpR1q1r/5r1k/2P4P/nbK2N2 w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 f5 f4 h5 g4 hxg4 dxe5 Be7 e4 Bg5 fxg5 fxe4 Kd2 Ke7 b4 Ke6 b6 Kf5 b7 c5 b5 a5 b6 g3 e6 e3+ Ke1 a4 e7 g2 e8R a3 Re4 a2 Qh5 g6 Kd1 e2+ Kd2 e1N Ba3 Ne7 Ne2 g1R Nc1 Nd3 Rd4 Ne5 Bb5 Nf7 Ba4 Rg3 Rd1 Ra7 Nd3 Qc7 Kc1 Nec6 Nb4 Qf4+ Nd2 Rf3 Re1 Rh6 Re7 Nh8 Rg7 Rh7 Rb1 a1N Rb3 Rh6 Re3 Rh7 Re8 Rh6 Reg8 Rh7 Qh4 Rh6 Qf2 Kg4 Qe2 Kh4 Qe7 Kh3 Qf6 Qe5 Nf1 Qf4+ Kb1 Rh4 Kb2 Na6 b8Q Rc7 b7 Na7 Qa8 Nb8 Kb1 Na6 b8B Bb7 Kb2 Bd5 Qb7 Ba2 Qe4 c4 Qe2 Rc8 Be5 Bb1 Qd1 Rc7 Qe2 Re3 Qh5 Nb8 Kc1 Rf3+ Nd2 Qf5 Nf1 Qg4 Nd3 Qf5 Be7 d6 Nb4 Qf4+
r7/Rp3PKn/qB6/R2b2N1/pp3B1b/r1PP3Q/r2bQb1B/2kN3Q w - - 0 1 illegal: No proof kernel
NrrN4/1Q4Q1/K3R3/6b1/4Bp1q/P1RPRn1Q/p1pP4/kB1nnnq1 w - - 0 1 illegal: No proof kernel
5qr1/4RqBb/1p1QNN1P/1nB1Q2r/3b1K1p/R1r3N1/Pp1PrB2/2k5 w - - 0 1 illegal: No proof kernel
2qQN3/q1P5/1p3R1P/1p1N2q1/2BR4/2N1rPr1/Bkp1B1nK/b1nQ1q2 w - - 0 1 illegal: No proof kernel
rR1n4/rpNp1KnQ/3p1B2/Pbk5/5P2/3B1NQ1/1nqP2BQ/2q2Rn1 w - - 0 1 illegal: No proof kernel forced: wxLB
N4N2/Qp1KR3/3n3p/RNB1n2B/nPqbP3/pq4b1/PBQ5/1qb3k1 w - - 0 1 legal: proof: e4 e5 d4 c6 d5 cxd5 f3 dxe4 Ke2 e3 Kd3 e2 Kc3 Qh4 Kd2 Qd8 Ke1 f5 Kf2 e4 g4 e3+ Kg2 a5 Kg3 Ra6 Kh3 Re6 Kg2 Re4 fxe4 Kf7 Nf3 Ke7 Ng1 Ke8 h3 g5 Qd4 f4 Qd5 d6 Qd1 h6 Nd2 Bf5 gxf5 g4 Nb1 g3 Qd2 Rh7 Qe1 Rg7 Qd1 Rg4 hxg4 Kd7 Qd2 Ke7 Qd1 Ke8 Kf3 Ke7 b4 Kf6 c4 Kg5 f6 e1Q c5 g2 f7 e2 c6 d5 c7 a4 c8N a3 Bb2 d4 Nh3+ Kh4 g5 g1B g6 d3 g7 d2 Nb6 Bd6 f8B Nc6 Qc2 d1N Nc3 Bd4 Nb5 Nc3 Rd1 Nf6 g8Q Na4 Qg1 Ne8 Na8 Qg5 Qe3 Qd5 Rd2 Bc7 Bc5 Qb1 Rg1 e1B Ng5 Qb3 Be2 Bg3 Ne6 Kh3 Nf8 Kh2 Kg4 f3 Kf5 f2 Bh5 Bgf4 Rg7 Ne5 Re7 Nd6+ Kf6 Kg1 Rd3 Bc3 Rd5 Bd4 Ke6 Bb8 Qh3 Bc1 Qe3 Ng6 Kd7 Bc7 Qf4 f1Q Qf6 Qfc4 Rde5 Ne8 Qb6 Bd6 Rf5 Bg3 Qa7 Nd6 Rf6 Nc8 Ra6 Nd6 Ra5 Ne5+
1R5K/rr1n1r2/1NN1p3/2pQ1PP1/1qp1r1bq/k3PQ1B/2r4Q/B3R2N w - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 f5 Nc3 fxg4 Nb1 a5 a4 b5 axb5 a4 Ba3 g6 Bb2 Be6 Bc1 Bc8 h4 g5 Rh2 g3 Ba3 g4 Bc1 Bh6 Rh1 Bg5 hxg5 Nc6 Na3 Kf8 Nb1 Na5 bxa5 Ke8 d4 Kd7 Kd2 Kd6 Kc3 h5 f4 g2 e3 e6 a6 h4 b6 a3 d5 Kc5 a7 a2 d6 g3 b7 h3 b8Q h2 d7 Rh7 f5 Rf7 Qf3 Qe7 d8N Nf6 Nh3 g1R Bb2 g2 Nf2 Nd7 Nc6 Bb7 Qh8 Rd8 a8Q Rb8 Qhh3 Kb5 Kd4 Qb4 Ke4 Kc5 Bh8 Kb5 Nc3+ Kc5 Rb1 a1R Rb2 Ra7 Nd5 Kb5 Rb1 Ka4 Nb6+ Ka3 Kf4 Rff8 Ba1 Rf7 Na5 Be4 Qd5 c5 Nc6 Rbb7 Kg4 Bc2 Kh5 Bd1 Kh6 Be2 Qf4 Bg4 Qhf3 Rf6+ Kg7 Rf8 Bd3 Rf7+ Kh8 Rc1 Re1 g1R Nh1 Rc2 Bf1 Rgg2 Qfd6 Rgd2 Bh3 Rd4 Nf2 h1Q Qh2 Re4 Rb2 Qf1 Nh1 Qf2 Na8 Qa4 Rb5 Qb4 Rb6 Rc7 Rb8 Rcb7 Nb6 Qh4+
RnQ5/2B1rpr1/rRnr4/4PRB1/BNQ4P/pb6/P3NK1p/r1nk4 w - - 0 1 legal: proof: f4 c5 c4 h5 b4 e5 g3 exf4 bxc5 d5 Kf2 dxc4 Ke1 h4 Nf3 g5 Ne5 g4 Nf3 Be7 Ng1 Qd3 Qc2 h3 Qd1 Bh4 gxh4 g3 Qb3 g2 Qd1 Qg3+ hxg3 Bg4 Kf2 Bd7 Ke1 Bc8 d4 Ke7 e4 Ke6 g4 a5 g5 b5 g6 b4 d5+ Ke5 c6 c3 d6 a4 d7 h2 d8B a3 c7 c2 g7 f3 Bdg5 b3 Nd2 Kd4 Qe2 Kc3 Nc4 b2 Ne3 b1R Kf2 Rb7 Rb1 Be6 Rb6 Ne7 g8R Rh6 c8Q+ Nec6 e5 Rd7 Bd8 Re7 Bc7 Bb3 Re8 Rd6 Nd5+ Kd4 Bf4 c1N Nb4 Kc3 Bg5 Ra6 Qc4+ Kb2 Ne2 g1R Bh3 Rg3 Bd7 Rg1 Bh6 Rg7 Rg1 Kb1 Rg5 Kb2 Rf5 Kb1 Ke3 f2 Bg5 f1R Rg8 Na7 Ba4 Nac6 Nf4 Rg1 Kf2 Kb2 Qd5 Kc3 Qc4+ Kd2 Ne2+ Kd1 Qb7 Nd7 Ra8 Ndb8 Qc8 Nd3+ Ke3 Ke1 Kf3 Rh1 Rf4 Kd2 Kg2 Ra1 Rf5+ Kd1 Kf3 Nc1 Ke3 Bc2 Kf2 Bb3
r4q2/PR1np2Q/2pB3R/3Pp1N1/B2K2P1/qQ1n2qq/rRq2NNk/8 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 h3 g5 cxd5 Bf5 e4 g4 e5 Bd3 e6 fxe6 g3 Bh6 f5 Bf4 gxf4 g3 Rh2 Be2 Rh1 Bg4 hxg4 Qd7 Nh3 Qc8 Ng1 Qd8 Ke2 Kd7 Ke3 Kd6 a4 h5 d4 b5 a5 g2 f6 c6 f7 h4 f8Q b3 a6 b4 a7 h3 f5 b2 f6 b3 f7 h2 Bb5 Qb6 Ra2 Rh4 Qg7 Qd8 f8R Na6 Nd2 b1Q Rb2 Nc5 Ne2 Qa1 Nf4 Nd3 Qh7 Qa3 Ba4 g1Q+ Ke4 Qf2 Ng2 Qg3 Rf6 Qb8 Rh6 Qf8 Rg1 h1Q Qc2 Kd7 d6 Qhh3 d5 Nf6+ Kd4 Rh5 Re1 Re5 Rh1 Re2 Ne4 Rf2 Bf4 Rd2 Ra2 b2 Qb3 b1Q Nf2 Rb2 Rh2 Qc2 Ra1 Ra2 Rb1 Ke8 d7+ Kd8 Bd2 Kc7 d8N Kd6 Bc1 Nd7 Nf7+ Kc7 Ng5 Kd6 Be3 Qcb2+ Kc4 Ke5 Bc5 Qd2 Rb2 Qe2 Rh1 Qd2 Rhb1 Qe2 Ne1 Kf4 Kd4 Qc2 Bb4 Qgh2 Ng2+ Kg3 Bc5 Qg1 Bb4 Kh2 Bd6+ N7e5 Ne1 Qg3 Ng2 Nd7 Qc4 N3e5 Rb7 Nd3 R1b2 Rb8 Qb5 Ra8 Qb3 e5+
3b4/1bn1QnK1/N1RP1nq1/1p1bBB2/R1PB4/2pp2b1/Q1Pk3n/2N2Q2 w - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 a5 b4 axb4 d3 e5 Kd2 exf4 Ke1 c4 Na3 d5 Nb1 g5 Be3 b5 Bd2 c3 Bc1 d4 e4 Rh6 Bh3 Rd6 Bf1 Rd5 exd5 Ra6 Na3 Rc6 Nb1 Rc4 dxc4 Ke7 Be3 Kd7 Bc1 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 h4 g4 a4 f3 a5 g3 a6 d3 a7 b3 a8Q f4 h6 b2 h5 g2 h7 f2 h8Q f3 h6 Bb7 h7 Nh6 d6 Na6 Qg8 Qe8+ Kf6 Kd4 h8B Be7+ Kg7 Bd8 Qe6 Qh5 Nd2 b1N Qe7 Nf7 Ne4 Nc7 Qa2 Nd2 Nc5 Ne4 Bf4 Nf6 Be5+ Ke3 Ne2 g1B Bh3 f1N Nc1 f2 Bf5 Nh2 Na6 f1B Qe1+ Be2 Qf1 Bf2 Rg1 Bh4 Rg5 Kd2 Bd4 Be1 Bh7 Qf3 Qb2 Qh5 Rc5 Na8 Ra4 Ne8+ Kf8 Bef3 Qa2 Bfd5 Bhe5 Nac7 Bf5 Nf6 Kg7 Bg3 Rc6 Qg6+
1q1Q4/RKNnn1PN/2pBnp2/1B2Q3/2pnqP1b/nRP3B1/2k2n2/7R w - - 0 2 illegal: No possible last move
r3r3/2QQ2Nq/1p1P3B/2P2ppR/1B1Bp1R1/2RP1brN/2n2bn1/1K3k2 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 a5 b3 a4 Bc4 c5 b4 cxb4 Bb3 axb3 exd5 e4 Bb2 Qc7 Bc1 Qe5 fxe5 Ra3 Kf2 Ra4 Ke1 Ra8 a4 Ke7 c4 f5 h4 b6 e6 Kd6 d3 Kc5 Kd2 Kd4 d6 b2 Kc2 g6 e7 Nc6 e8Q Ne5 h6 Rh7 h5 Ne7 a5 Rb8 a6 Rg7 a7 Ng4 a8R Nd5 h7 Be7 h8B Be6 h6 Bf7 h7 Bh4 Nh3 Bf2 Bh6 Nf4 R8a3 Ke3 Qd7 Re8 Nd2 b1R Qc1 Ke2 Nb3 Ng2 Nc5 g5 Rg1 Rgg8 Bc3 Bh5 h8B Ra8 Ne6 Rge8 R1a2 Ra1 Ng7 b3+ Kb2 N4e3 Bb4 Bf3 Qc3 Rd1 c5 Rd2+ Kb1 b2 Qe5 Nc2 Qee7 Nd4 Rh1 Nc2 Rh2 Kf1 Rc3 Re2 Qed8 Re3 Q8c7 Be1 Nh5 Bf2 Bd4 Be2 Ng7 Rg3 Nf4 Bg4 Rh5 Bf3 Nh3 Nh4 Ra1 Ke1 Ng1 Na3+ Ka2+ Nb1+ Kb3 Rg2 Kc2 Bg3+ Ne2 Rg1 Ra2 Kf1 Nf4 Ng6 Rh2 Nh4 Rg2 Be1 Rg4 Rg2+ Bf2 Rg3 Bd4 Na3+ Kb3 b1Q+ Rb2 Qd1+ Ka2 Qe2 Ka1 Nb5+ Kb1 Qh2 Rbc2 Qh3 Rh2 Bf2 Rh1+ Bg1 Rh2 Ng2 Rh1 Qh5 Rhh4 Qf7 Nh3 Bf2 Ne6 Qh7 Rh5 Na3+ Ka2 Ra7 Ng7 Nc2+ Kb1 Raa8
2NB2r1/1p2PPkb/5rN1/1Bn4r/1Qp2R1P/2KQB1p1/Np1R4/bn2q3 w - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 g4 h5 gxh5 d5 cxd5 e6 d4 e5 dxe5 fxe4 Kd2 Kf7 a4 g5 h4 c5 f4 g4 f5 g3 a5 b3 h6 e3+ Kc3 e2 f6 e1R a6 Qe8 a7 Na6 e6+ Kg6 d6 Re2 h7 Rd2 f7 Qd8 d7 Kf6 e7 Kg7 Nf3 Nb4 Bb5 c4 Rf1 Nf6 Ra2 Rd6 Qd3 Qa5 d8B Nd7 Ne5 Nc5 Ng6 Rf6 Be3 Bf5 Rd2 Be4 Rf4 Nc2+ Kb2 Na3 Nc3 Rb8 a8N Qb4 Na2 Rc8 Re2 Qe1 Nb6 Ra8 Nc8 Ra5 Bc6 Rg8 Bb5 Nb1 Qd6 Nd7 Ne5 Kh6 Nb4 Re6 h8Q+ Bh7 Ng6 Na3 Ba4 Rh5 Na2 Nc5 Rd2 Bg7+ Qd4 Rb6 Bb5 Be5 Qf6 Ra6 Qf5 Kg7 Qb1 Rf6 Qc3 Bd6 Qcd3 Bc7 Kc3 Be5+ Kb4 Ba1 Qb2 Rh8 Qbc3 b2 Qb3 Rf8 Kc3 Rg8 Qb4 Nb1+
Nr2rQ2/P5Pr/1n3pQp/1RK1p3/N5P1/n2BB3/2b2p2/nR1RNbk1 w - - 0 1 legal: proof: e4 d5 exd5 g5 c4 a5 f4 gxf4 g4 c6 d4 Ra6 b4 axb4 c5 Qd7 d6 Qf5 d5 Qh5 Nc3 Qh3 Nb1 Qg3+ hxg3 Bg7 d7+ Kf8 Qf3 Be5 Qd1 Bd6 cxd6 Ra8 Kd2 Kg7 Kd3 Kf6 Kc4 Ke5 d8Q Ke4 a4 b5+ Kc5 e5 d7 f3 g5 h6 g4 f2 a5 b3 a6 b2 a7 f6 g6 b4 d6 b3 g7 Ne7 Be3 Na6+ Kc4 c5 Qf8 Nc7 d8R Ba6+ Kc3 c4 Kb4 c3 d7 c2 Qe2 c1N Qe1 Rh7 Nf3 Nc8 Ra5 Nb5 Kc5 Na3 Rb5 Nb6 Qd1 Rb8 Ne1 Ra8 Qdd6 Rb8 Qe6 Ra8 Qee8 Rb8 Ng2 Kf3 Nc3 b1R Na4 b2 Bd3 Kg3 Re1 Kh2 Qg6 Ra8 Rd1 Rb8 Ne1 Kg1 Rc8 Ra8 d8N Nb3+ Kc6 Rb8 Ne6 Na1 Nc7 Rc1+ Kd6 b1B Na8 Bc2 Kc5 Rb1 Rc7 Re8 Rb7 Rb2 Ra5 Bc4 Rb5 Rb4 Be4 Bf1 Bd3 Rd4 Rbb1 Rdd8 Rb5 Rb8 Rbb1 Nc8 R7b5 Nb6
4KRr1/nk4Pr/3q3r/p1Pp2BQ/1p1RBQPq/1RNpr3/6Q1/Nn6 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 h4 b5 hxg5 e5 c4 exf4 a5 Bc5 b3 Bb6 axb6 Bb7 c5 Bd5 Kd2 Qc7 Ke1 Bc4 bxc4 Qd8 c6 f5 Kf2 d5 Kf3 h5 g4 a5 e4 d3 c7 Kd7 c8R h4 c5 h3 b7 h2 e5 Ra6 g6 Rh7 g7 Rc6 e6+ Ke7 Nd2 Nf6 Ra4 Ne4 Ne2 Nc3 Nb3 Qc7 Rc4 b4 Rd4 Rd6 Bd2 Nc6 b8Q Na7 Bg2 Qd8 Rf1 h1Q Qc2 Qh4 Na1 Qd7 Rf2 Nb1 Nc3 Qc6 Re2 Rd8 Be3 Rg8 Rf8 Qc7 Qa2 Qb6 Rb2 Qa6 Qe5 Qd6 Rf7+ Kd8 e7+ Kc7 Rf8 Kc6 e8Q+ Kb7 Qh5 Qhd8 Kf2 f3 Kg3 f2 Kf4 Qh4 Qh6 Qhe7 Rb3 f1R+ Qf2 Qef6 Be4 Re1 Qg2 Qh4 Qh5 Re2 Kf3 Re1 Bg5 Re3+ Kf4 Qh3 Bh4 Qh1 Kg5 f4 Qf6 Qe1 Kg6 f3 Kf7 Qh1 Ke8 Qhh2 Qf4 f2 Qhh6 f1R Bf6 Rh1 Bg5 Qg3 Qg6 R1h6 Qh5 Qh4
R2r4/1PPQ1qp1/pP3pb1/pN1Q4/1p4K1/1pN1r3/2R3r1/k1nBBR1B w - - 0 1 illegal: Other
b2k1r2/4qBb1/nn3Qb1/2rNq2P/Q1r2R2/1KB2R1B/NPPnnR2/5n2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 h4 a5 e4 f5 h6 g5 e5 g4 b6 a4 b7 f3 h5 g3 h7 a3 e6 f4 e7 d3 Kc3 d4+ Kb4 d2 Rh2 d3 Ne2 f2 Nd4 f3 Rg2 a2 Na3 Nf6 Nab5 Na6+ Ka3 Nd5 b8R Bg7 Nf5 Rf8 h8Q Nb6 Qe2 d1R Qh7 d2 Nh6 Bf5 Qh8 Bg6 Qc4 Re1 Qe4 d1B Qa4 Re5 Nf5 Rc5 Bd2 Kd7 Rc1 a1Q+ Kb3 Qc7 Bb4 Qe5 Bc3 Ra7 Qh6 Rac7 Ne3 Be2 Rh2 g2 Nd5 g1N Qhf4 Rc4 Qf6 R7c5 Rb7+ Ke8 Bh3 f1N Rf2 Bed3 Rd1 Bde4 Rd3 Qe1 Rd4 Ne2 Rd7 Bef5 Rf4 Bd3 Rd6 Bde4 Re6 Kd7 e8B+ Kc8 Re7+ Kd8 Rf7+ Qe7 Nb4 Ba8 Nc7 Qd1 Na2 Qd4 Nd5 Qe5 Rg2 f2 Rg3 Nh2 Rgf3 f1N Bed7 Nfg3 Bde6 Ne4 Rf2 Re8 Rf8 Nf1 Bf7 Ned2+ Ka3 Bh7 Rg8 Bh6 Rg3 Bg6 Re3 Bg7 Ref3 Nb1+ Kb3 Rh8 Rd4 Rf8 Rdf4 Nbd2+
q3r1b1/Q2r1r2/nr3N2/RqNP1K2/2R2b2/N5P1/qRn2Pr1/1BBk1n1Q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 b3 h5 d6 c5 b6 e5+ Ke3 a5 d7 a4 d5 c4 g3 a3 b7 a2 Qd3 h3 Qd4 h2 Ne2 h4 Nd2 h3 Qa7 c3 Bg2 c2 Rg1 h1Q Nd4 Kc3 b4 h2 b5 Rh6 b6 Ne7 Qa4 Ra7 N4b3 Na6 b8R Nf5+ Ke2 e3 Kf3 e4+ Kg4 e2 b7 e1N Nf1 e3 Ra8 e2 b8Q Rb6 Qaf4 Bh6 Nbd2 Ne3+ Kh5 Bg5 Qf8 Bf4 Rb1 a1Q Rb2 Qa2 Nc4 Kd3 Nfd2 Nf1 Qh6 Qf8 d8N Be6 Kg6 Bg8+ Nd6 Rf7 Ne6 Qe8 Bh3 Qb5 N6c4 Qf3 Qc7 h1R Ne4 Rh2 Na3 Rg2 Nf6 Qe3 Rh1 Qec5 Qb8 Qc8 Kf5 Qcc6 Ra7 Qa8 Nc5+ Kc3 Rc7 Rd7 Qa7 Rf7 Be3 c1R Rg1 Rb1 Bc1 Nc2 Bg4 e1R Qh1 Rb7 Be2 Rd7 Bd3 Re8 Rc6 Nh2 Re1 Nf1 Re4 Rf7 Ra4 Rbd7 Ra5 Ne1 Rb4 Rb3 Bb1 Nc2 Ne4+ Kd3 Nc5+ Ke2 Rc4 Kd1 Rb6 Rbe3 Rb7 R3e6 Rb8 Qbb2 Rbb5 Rb6 Rbb4 Qbb3 Rbb5 Qa4 Rb2 Qb5
B1b1qR2/2n1BB1Q/4Pb2/4N3/b1r1PN1P/bkq1bn2/rq4QR/nR3K2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 e4 Ke7 h4 d5 b4 f5 c4 a5 e6 Kd6 b6 g5 b7 d3 b5 Kc5 b6 Kb4 c5 d2+ Ke2 a4 c6 d4 c7 a3 Bh3 f4 Qe1 d3+ Kf2 a2 Bb2 f3 Bf6 g3+ Kf1 f2 Nc3 d1B Nb5+ d2 Bc3+ Kb3 Rc1 a1N Qe2 g4 Kg2 Ra2 Rh2 f1Q+ Kh1 Nc6 b8Q Nge7 b7 Qf2 Na7 Nd4 Bb4 Qe8 Nc6 Nd5 Be7 Nf3 Qa7 Qd4 Kg2 Qb2 Kf1 g2+ Kf2 Bc2 Ne5 d1Q Rb1 Qd2 b8R+ Qb4 Qd2 g3+ Ke2 Bg7 Bg4 Bf6 Nh3 g1B Nf4 g2 Bh5 Bc5 Bf7 g1B Kf1 Bge3 Qg2 Rh7 Ra8 Qc3 Rb8+ Bb4 Ra8 Ba3 Rb8+ Bb7 c8B Nc7 Bd7 Rh8 Bc6 Rg8 Rd8 Bc8 Ba8 Rg5 Neg6 Rc5 Ne5 Qd7 Rf8 Rc4 Qd4 Qe8 Qd1 Ng1 Qh5 Nf3 Qh7 Ka4 Bd8 Kb4 Nh3 Bd1 Nf4 Ba4 Be7+ Kb3
3Bn1K1/1N1rN3/2Pb1br1/QN4q1/1BPqR3/PqQ2bq1/n4qn1/R4Bk1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 b5 Kd5 h5 g4 e5 f4 e4 c4 h3 c6 b3 a3 b4 Bd3 e3 Nc3 h2 Rb1 b2 Ra1 b1Q Be2 h4 Na2 b3 Bd2 b2 Nc1 h3 Qe1 Rh6 Ra2 Na6 Bf3 e2 Ra1 Rg6 Qf2 e1B Qb6 Nb4+ Kd4 d5 Nge2 Qa2 Qb5 b1Q Nb3 Ra7 Na5 Bh4 Bg2 Qbb3 Nc3 Bd6 Bf1 Rd7 Nb7 Qa5 Rg1 h1Q Qb6 h2 Nb5 Qg2 g5+ Kf7 f6 Ke6 f7 Kf5 f8Q+ Kg4 f5 Kg3 f6 Kf2 f7 h1Q Bc3 Qg3 Qg7 Nf6 f8B Ne8 Be7 Qhh3 Re1 Qhg4+ Re4 Qac2 Rh1 Na2 Bd8 Qa7 Bb4 Qf5 Rh2+ Kg1 Rhe2 Qff4 Re1 Qcg2 Ra1 Qff2+ Re3 Rf7 Qf6 Bg4 Qh8 Bf3 Qg7 Re6 g6 Rd7 Qe5 Bhe7 g7 Rg6 g8N Bf6 Ne7 Qg5 Qc5 Qg2g3 Qb6 Bb8 Kc5 d4 Re4 Bd6+ Kd5 d3 Ke6 d2 Kf7 d1N Qa5 Ne3 Qc3 Qd4 Kf8 Ng2 Kf7 Bg7 Kg8 Bf6+
QqKR1n2/1B6/QrP4P/Q1B2nb1/3q1b1P/r2brq2/b2R4/2BNNkb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kh4 c4 a5 e4 g5 b4 f5 e5 d3 e6 d2 h6 g4 b6 f3 b7 a4 b5 f2 h3 Kg3 b6 f4 c5 f3 e7 a3 Kd6 a2 h4 Ra3 Bg2 f1B c6 Kf2 Nc3 g3 Rh3 Bd3 Bf1 g2 Nge2 g1B Rb1 a1B Nb5 Bf6 Ned4 Bg5 Qb3 d1R Qb4 Re1 Qa5 Re3 Nc2 Qe8 Kc7 d5 Ne1 d4 Rg3 Be6 Nc3 Nd7 b8Q Ba2 b7 Bg7 Rb5 Nf8 Rd5 Be5+ Rd6 Bef4 Qba8 Rh7 b8B Rf7 Qb7 Rg7 Ba7 Qb8+ Kb6 Rf7 e8Q Ne7 Rd8 Nf5 Bh3 Rd7 Rg2+ Kf1 Nd1 f2 Bg4 Rd5 Bh3 Rb5+ Ka6 Be4 Bc5 d3 Qa7 d2 Qb6 Qe5 Kb7 Bd3 Kc8 Rb1 Qba6 Rb6 Qd7 Qb2 Qda7 Qb4 Qa8 Qd4 Nb2 d1Q Bg4 Qf3 Nd1 Ke2 Rg3 f1Q Rg2+ Qf2 Bh3 Kf1 Bg4 Qfb2 Rd2 Bfh2 Rd6 Bhf4 Kc7 Ne7 Bc8 Rb8 Kd8 Qb7 Rd5 Qa7 Rd7 Rb6 Bb7 Nf5+ Kc8 Qc3 Rd6 Qd4 Rd8 Qb8+
1Q2b1nN/3Q3Q/qPKNR2b/P1n2r2/rPB4k/qRBqb3/2B5/3n1qq1 w - - 0 1 illegal: No proof kernel
q2rN2B/4R1r1/qP1r1qP1/Q1qB1QP1/2R1QN2/Kn3b2/6nb/1q1k1N1b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 c4 d5 Kc2 a5 Kb2 f5 g4 h5 g6 f3 b6 h4 b5 a4 b7 f2 b6 f4 g5 h3 c5 h2 c6 d3 c7 Kd4 e5 d2 e6 Ke3 e7 a3+ Kb3 a2 e8Q+ Qe7 Ba3 d4 Qa4 f3 Qa7 d3 Qa4 Rh7 Bb4 Na6 b8N Qc5 Qc1 Bb7 c8Q Nh6 Bh3 f1Q Na3 f2 Qad7 Bd6 Nb1 Bf3 Be6 Rg7 Qa3 d1R Qda4 d2 Bd5 Nf5 Nd7 Nh4 Nh3 Ke2 Nf6 Ng2 Qf5 Rd8 Nf4+ Ke1 Rg1 h1B Ne8 Bb8 Bc3 Bc7 Ne2 Bh2 Qae4 Rd6 Qa5 Rd8 Na3 Rd6 Rb1 a1Q Nc4 Qa4+ Kb2 Qac6 Rc1 Qa8 Nf4+ Be2 Qee6 Rd8 Bc6 Rc7 Nh5 Qe5 Qd3 Nc5 Ka3 Nb3 Ne3 Rcd7 Qg4 Qc5+ Qb4 Bg4 Bh8 Rg7 Rc2 Nh4 Rg3 Ng2 Rf3 Qe2 Rf7 f1Q Re7 Qf6 Qf5 Qea6 Nf4 Bf3 Be4 Rc1 Rc3 d1Q Nf1 Qdd3 Bc6+ Qe4 Bb7 Rcd1 Bc6 R1d6 Bd5 Kd1 Rc2 Qce3 Rc6 Qc2 Qbe4 Qb1 Rc4 Qc5+
N3Q2R/1Q2KP2/5R2/bN1r4/Pb3q2/n2qPBnb/1bQb1B2/1N1rrk1q w - - 0 1 illegal: No proof kernel
4b1nr/R2QP2k/5r2/BRrr2P1/1BQq1Nq1/1BPqb1Q1/b3Nn2/4K1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 b4 f5 g4 Kf7 e4 Kg6 e5 h5 b6 a5 b5 d5 c3 h4 e6 h3 b7 a4 b6 a3 e7 d3 Nf3 a2 Qb3 d2+ Kd1 h2 Bb5 d4 Rf1 h1B Qc2 Nd7 b8Q Ndf6 b7 Ne4 Ke2 d1R Qe5 Bd7 b8B Be8 Ne1 Nf2 Ba3 Kh7 Bbd6 Bh6 Qa4 Rc8 Qe4 Rc5 Bc7 Rd3 Ng2 f3+ Ke1 Qd5 Qe6 f4 Qc4 Rd2 Qf6 d3 Qe6 Qd4 Bb4 Rb2 Nd2 Rc2 Rc1 a1R Rb1 Ra5 Ba4 Rd5 Qec6 Rac5 Bca5 Ra2 Rg1 Rb2 Ne4 d2+ Kf1 Ra2 Qd7 Rb2 Bb3 d1Q+ Ne1 Rd2 g6+ Kg7 Qc7 Rd8 Qd5 Nd3 Bc4 f2 Bb6 Rc6 Ba3 Nf6 Ng3 Qf3 Qa7 Rc5 Rb5 Qd1 Qe6 Bd5 Bb4 Rb2 Qe2 Kg8 g7 Kh7 Ba2 Bb3 Qb7 Rdd5 Qd7 Bc4 Qc2 Qf3 Ng2 Qfe4 Bc7 Qf5 Ke2 f1Q+ Kd2 Qf3 Ra1 Qfe3+ Kd1 f3 Qe2 f2 Bd8 Qee6 Bc7 Be3 g8Q+ Kh6 Qg5+ Kh7 Qf4 Ng8 g5 f1R+ Qe1 Qg7 Qg4 Rbf2 Ne2 Qeg6 Qf4 Qg4 Bb6 Rg1 Qe4 Rf8 Nf4 Rg2 Qg3 Nf2+ Ke1 Qf6 Qd3 Qd4 Bc7 Bb3 Qc4 Rf6 Bb6 Qgd3 Bc7 Bc2 Bb3 Bb1 Ra7 Ba2 Bca5 Rg1+
7r/BKP1B1PN/rrNb2q1/2Rr2R1/2Q1B2k/2P3n1/n2nN3/q1rQ1b1q w - - 0 1 illegal: No possible last move, all moves rejected
1b1Qbr1k/NP1rn2b/7K/5Bn1/2nr3q/2BQ2P1/RQr2N1P/RB1rq3 w - - 0 1 illegal: No proof kernel
n3Nrk1/1PnnB1rb/b1B3R1/PN1bb1P1/6B1/rNb4Q/2K5/1Q1Rq1q1 w - - 0 1 illegal: No proof kernel
Q1Bk1BK1/P2n1q2/Bq4n1/RQ1q3P/N4r1N/3bb1Pr/1N1q2Rq/3n2r1 w - - 0 1 illegal: No possible last move, all moves rejected
1r4N1/P1rnbRn1/2B2PP1/2N2Q1Q/bnk5/r1Bq4/1n2R1qQ/2bnK2R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 Kd6 g4 c5 f4 h5 g5 e5 g6 b5 a5 b3 f6 b2 f7 e4 f5 h3 a6 h2 f6 b4 Bg2 b3 Bh6 c4 Bc1 e3 Qd2 e2 Bf1 c3 Qd1 h4 Qc2 h3 Ra4 Bd7 Nd2 b1N Ra5 b2 Qf5 c2 Ra2 Be7 f8R Rh7 Ngf3 Na3 Bg2 b1R Ng5 Ba4 Rf7 Nh6 Nb3 Nc4 Nc5 Nd7 a7 Rab8 Bf3 R1b3 Bd2 c1B Bc3 Ra3 Rd2 Nb2 Bg2 Kc7 d6+ Kb6 d5 Kb5 Be4 Kc4 Bf3 Nb6 d7 Rg7 d6 Rh7 Qc2 Nf5 Bc6 Ng7 Qf5 Ra1 Kf2 e1N Re2 Ned3+ Kf1 Nb4 Ke1 Qh8 d8Q Ra3 Qc7 Qd8 Rf1 h1N d7 Nf2 Qh2 Nfd1 Rh1 Qe8 d8Q Qd7 Qh8 Qd3 Nge4 Nd7 Nf2 Ne5 Ng4 Nd7 Qg2 h2 Nh6 Na6 Ng8 Nb4 Rg1 h1Q Qh2 Qg2 Rh1 Rh4 Qhh5 Rd4 Ba8 Rd6 Bf3 Rc6 Be4 Rcc8 Bc6 Rc7
2nR2QN/3PnN2/n4rr1/n5nn/B1R2bP1/Qb3NkP/2q2b1n/3KBB2 w - - 0 1 illegal: No possible last move, all moves rejected
N3rK1B/2P1QR1r/nn3r1Q/5r2/QbrqN2R/1P2Pb2/nNk1B3/5r1r w - - 0 1 illegal: No possible last move, all moves rejected
1n1bBb1K/k6N/q3N1qR/4PqqP/1R3N2/2r2rB1/1P1Q3r/RbQn2n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 a5 e4 c5 d4 Kc7 e5 Kb6 d6 g5 d5 f5 d7 a4 d6 a3 Kg2 a2 Ne2 c4 Qd5 f3+ Kg3 f4+ Kh2 c3 Qc6+ Ka7 Nd2 f2 Qe4 c2 Nc3 g3+ Kh3 g2 Kg4 g1N Kf5 g4 Kg6 g3 Ne2 g2 Nf3 Nf6 Qc4 Nd5 Ng5 f3 Nh7 Ne3 Nf4 Nd1 Bd3 Qe7 d8N f1Q d7 f2 Nde6 Qg5+ Kf7 Bb7 Bg6 Be4 d8Q Bf5 Bd2 c1B Be1 Bb1 Qd2 Qd3 Qc8 f1R Bg3 Rf3 Qcc2 Bc5 Kg7 Qdf5 Rh2 Rc8 Qc4 Bf8+ Kh8 Rc7 Qcc2 Rcc3 Be8 Qgg6 Qf2+ Be3 Qfd2 Bb6 Qcc1 Bd8 Rh1 Ne2 Rh2 g1Q Rh1 Qe3 Rh2 Ng1 b6+ Ka6 b7 Ka7 Ne2 Qeg5 N2f4 Kb6 Rh1 Ra4 Rh2 Ka7 Rh3 Re4 Rh2 Re2 Rh3 Nc6 b8R Rh2 Rb6 Nb8 h5 Bc5 Rh4 Bd6 Nh3 Bc5 Rhb4 Bf8 Nhf4 Be4 Rb1 a1Q Rc6 Qa2 Ra1 Qa6 Nc7 Qgf7 Rh6 Q7g6 Nce6 Bb1
1nkr2b1/q2bR1N1/1r1bN2P/1qr1n1RN/2n2Q2/Bq1R2PP/B1K4n/5Q2 w - - 0 1 illegal: No proof kernel
1Q1bKrq1/1NQR2q1/1R4P1/2qQnk2/n5Nb/1Pb2Pr1/b1n1BB2/5N1r w - - 0 1 illegal: No possible last move, all moves rejected
5B2/1K6/b1n1PqnR/Nb1R1q2/N1qnRPk1/1P1r2r1/r1B3Q1/1Qr1b1Q1 w - - 0 1 illegal: No possible last move
1q2Q3/1RK5/1P1n1P1B/r2N2QB/r1nr3R/3qr1b1/NbPk4/2Rq1bnN w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 f4 d5 g4 h5 b6 e5+ Kb5 h3 f6 d3 g5 d2 b7 Ke3 f7 e4 f5 h2 g6 d4 f6 h4 g7 h3 Bb2 d3 Ra2 a4 Qc1 a3 Nf3 Ne7 g8N Ra4 Ng5 Rh4 Nf3 Nf5 Ba1 Nc6 b8R Na5 Bc3 Bd6 f8Q Nc4 Kc6 Bg3 b5 Ba6 b6 Nfd6 Ra8 Qb8 Ra1 a2 Qa3 d1Q Ng1 d2 Be2 Qf1 Bd1 Qd3 Bh5 d1Q Ne2 Rf4 Ne7 Rg4 Rf1 h1R Qe8 h2 Rf4 Re1 Ra7 h1R Rb7 Rg5 Bb2 Rh4 Nbc3 Kd2 Qc5 e3 Rc1 a1B Na2 Rd5 Ba3 Bb2 Qb5 Rd4 Qg5 Ra5 Nd5 Rg4 Rf1 Rh4 Rh1 Rhg4 Rh4 Rge4 Nef4 e2 Nh3+ Re3 Kd7 Rf1 Kc6 e1N Nf2 Nf3 Nh1 Ng1 Bc5 Rff4 Ba3 Ne4 Bf8 Ned6 Bh6 Rfe4 Re7 Bc8 Rc7 Bh3 Rb7 Bf1 Kd7 Na3 Kc6 Rda4 Kd7 Nac4 Kc6 Rd4 Kd7 Qa7 Kc7 Qb8+
1Qq2Nk1/4R1nb/PK1P2P1/B2b3B/n2RN3/3qQ1qn/1r2r2r/BNbb4 w - - 0 1 illegal: No possible last move
k1BBbN1q/bbn1NP2/R1Q1nK2/r2QP3/2RN1bq1/3r1BP1/6r1/3nq3 w - - 0 1 illegal: No proof kernel
1bb5/1PB3nN/qB2q1QR/P1R3Qr/K2kPN1r/3B1n1q/7b/2Nrn2r w - - 0 1 illegal: No proof kernel
kq1N4/Pq1R1n1P/q1P3B1/1RB2r2/1bQNnr2/4n1Nr/2QRb2b/1K3q2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 b5 f4 e5 h4 g5 a4 d5 c4 Kd7 Kc2 Kc7 c5 Kb7 f6 b3+ Kb2 g4 f7 g3 h6 d3 h7 e4 a5 d4 h5 b4 f5 e3 f6 e2 h6 e1R Nc3 g2 Ne4 d2 Rb1 d3 Ne2 g1B N2c3 Qb6 Nf2 Nd7 Nfe4 Ne5 Ng3 Qa6 Nb5 Re4 Rh2 Bg4 Nd4 Rf4 Qc2 d1Q Be3 d2 Bd3 Qf1 Bg6 Be2 c6+ Ka7 Bf2 d1N+ Kc1 Be7 f8N Nf7 Nfe6 Rf8 Nd8 Ka8 Rb2 Bc5 Kb1 Bd6 Rh5 Bh2 Rb5 Bc5 Qc4 Be7 Rd2 b2 Nb3 Bd6 Bc5 Rf5 Nd4 Ne3+ Rd1 Re8 Qc2 Re4 Qc4 Ref4 Qc2 Ne5 f7 Nf6 f8Q Ne4 Qf7 Be7 Qfc4 Nf7 Ka2 Bd6 Rd2 b3+ Ka3 Qb7 a6 b1Q a7 b2 Kb3 Qbe1 Ka2 Bf8 Qc1 Qd1 Kb1 Qa4 Qd1 Qaa6 Qdc1 Rg8 h8R Qb8 Rh7 Rh8 Bb6 Bb4 Bc5 Re8 Rg7 Re6 h7 Ref6 Bh5 Rh6 Bg6 Rh3 Qd1 Nh6 Rc7 Nf7 Rd7 Qh1 Rbb7 Ba5 Ka2 Qf1 Qdc2 b1Q+ Ka3 Qbb5 Ka2 Bb4+ Kb2 Qf3 Kc1 Qbb6 Kb1 Q6c7 Rb6 Qcb7 Rb5 Qf1+
2nnB2k/NbQ1n3/q1QR2P1/b1R1Pn2/N4r1N/K2b2B1/P6r/2Q1r1nn w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 g4 f5 d4 Kf7 Kd2 Kg7 Kc2 c5 Kb2 b5 e4 h5 e5 c4 d6 f3 g6 f4 d7 c3+ Kb3 f2 d5 c2 g5 f3 d6 h4 Qd3 h3 Ba3 c1N+ Kb2 b3 Rh2 b4 Ne2 Qb6 d8N Nc6 d7 Bb7 Nec3 Ne2 Nf7 Nd8 Qd1 Ne7 Rh1 h2 Qc1 Qa6 Na4 Ng1 Nbc3 Nc8 Bb5 f1N Nh6 f2 Nf5+ Kg8 g7 Ng3 Bc6 f1R Nh4 Nf5 Nb5 Re1 Na7 Bc5 Bb5 Bb6 Qc6 Ba5 Rd1 Kh7 Rd6 Rb8 Be2 Kg8 Bh5 Rh6 Qc1 Kh7 Be8 Rh5 Kb1 b2 Kc2 b1B+ Kb2 b3 Bc5 Kg8 Ka3 b2 Bf2 Bd3 Bg3 b1N+ Kb3 Nc6 d8Q Nc3 Qc7 Nd5 Ka3 Nd8 Q7c6 Rh8 Qc7 Kh7 Q1c6 Nde7 g6+ Kh6 g8Q Rh7 Qgd5 Kg7 Qc1 Kh8 Ng2 Rh4 Qdc6 Rf4 Nh4 Nh3 Rf1 h1N Rf2 Ng1 Rd2 Ba8 Rh2 Rb2 Rc2 Bb7 Rc5 Rh2
1R5B/2PBrnbn/3Qbbrk/6qP/NNrb4/K7/QbP5/1Rb1QBn1 w - - 0 1 illegal: No possible last move, all moves rejected
b6b/bn1N1kbK/3nR2B/3n2B1/2PPNnn1/3N2Qb/q2Q2RP/1B4rr w - - 0 1 illegal: No proof kernel
BKbR4/1b2rQ1n/1n1P1Q1r/2n1N1P1/1n3q2/BNbn3N/B2Pk3/4bRb1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 b4 h5 b6 a5 d6 c5 b7 h3 b5 a4 b6 f3 Bg2 a3 e4 Kd3 Qe1 f2 Qd1 f1N Bb2 a2 Bd4 f4 Qa4 h2 Kd5 f3 e5 c4 e6 h4 e7 c3 e8B h3 Qa7 f2 Qa4 c2 Bc3 c1B Bf7 Nf6+ Ke5 Be7 Qd7 Ba3 Be8 Nc6+ Ke6 Ng3 b8N f1N b7 Bc5 Na6 Ne3 b8Q Nge4 Qb3 Nc4 Na3 Nb6 Nc4 Nb4 Rf1 a1B Bf7 Ra7 Qb2 Qf8 Bg8 Bf2 g5 Be1 Qa2 Bb2 Qa1 Rb7 Be5 Bd4 Bf3 Bdf2 Bb2 Rh4 Ba3 Bc5 Rf2 Nh7 Re2 Qf4 Qg7 Bcf2 Nc5+ Kc2 Qg6 Bf6 Qh6 B6d4 Qf6 Kd1 Ke7 Rh5 Kd8 Rh6 Be6 Bc3 Qdf7 Ng3 Bc6 Ne4 Bcd5 Ra7 Bb7 Be3 Kc7 B3f2 Kb8 Be3 Nd3 Nc5 Ba8 Rd7 Bed5 Bed4 Re8 Re7 Rd8 Bdf2 Nf3 Ke2 Rf1 h1N Nde5 h2 Na5 Be3 Be6 Nf2 Ba2 h1B Nb3 Nfd3 Ng1+ Kd1 Rg8 Bhb7 Nh3 Ke2 Rd8 Bg1
K2br3/RB3QPr/NR1rQb2/1P5P/2b2b2/r5k1/n1QBB2r/1Nqb3n w - - 0 1 illegal: No proof kernel
r4b1r/QR3n2/NnNb2r1/1P4N1/P4RQq/kPbR2b1/7b/1KqbBB2 w - - 0 1 illegal: No proof kernel
5Rn1/r1bk1b1B/6Bb/PnQ1R3/5q1q/b1BPN1b1/PrR1b1KQ/1r4N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 d5 cxd5 exf4 Kf2 c5 e4 b5 h4 f5 h5 g5 d6 f3 e5 b4 e6 b3 d3 f4 h6 c4 e7 g3+ Ke1 g2 Kf2 g4 h7 c3 Be2 c2 Bd2 c1B Nh3 g1B+ Kf1 f2 Ng5 b2 Rh2 g3 Nc3 b1R Nf7 Ba3 Qc1 Nc6 Bh5 Bh6 Nd1 Kd7 Qc5 Na7 Kg2 Nb5 Bb4 Ra7 Ng5 Rb2 Ne3 f1B+ Kf3 g2 Bc3 Rb1 Nh3 Bf2 Bg6 Bg3 Ng1 Bb7+ Be4 Bd5 Rh5 Rb2 Re5 Bf7 Rc1 Rb1 Rc2 Rb2 Kg4 f3 Kh3 f2 Bg6 Be2 Be4 f1Q Bg6 Qb6 e8B+ Kd8 d7 Qf4 Be4 Qbf6 Bf5 Bb3 Beg6 Bf7 Qb4 Kc7 d8R Qe7 Re8 Qd8 Be4 Kd7 Rf8 Qdf6 Qc5 Qd8 Nf3 g1B Kg2 B1h2 Ng1 Qdh4 Rh5 Nf6 Re5 Rg8 h8Q Rg7 Nf1 Ng8 Bh7 Rg6 Ne3 Rb6 Beg6 Qff6 Rh5 Bc7 Rg5 Bhg3 Re5 Qff4 Qf6 Qhg4 Qh4 Qgg5 Qh1 Qgh4 Qh2 Rb1 Nc4 Nd6 Ne3 R6b2 Qc4 Nb5 Qd5+ Bcd6 Qc5 Bc7
NbK5/7q/2NR2P1/1r1P2bn/B3kP2/1Q1bB1b1/n1r1rb1Q/BR1N1qb1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 a5 g4 c5 d4 h5 b4 e3 b6 h3 Kb5 h2 b7 h4 g5 a4 f3 a3 g6 h3 Be2 a2 Nd2 e4 Nf1 c4 Qb3 c3 Ba3 c2 Bc1 Qf6 Kb6 Nc6 b8N Ra5 b5 Ba6 Ng3 Nb4 Bc4 e2 Bb2 c1B Nf1 e1B Nd7 e3 Rb1 a1B Ne2 Bf2 Bd3 Qf7 Bc2 Qh7 Ka7 Bg1 Kb8 Nf6 b6 Nh5 b7 Rb5 Kc8 Na2 Nb6 Bf2 Rg1 h1Q Na8 h2 Rg4 Qg1 Rf4 h1R Rf6+ Ke7 Rd6 Rh2 Bc3 Bab2 Bd2 Ba3 Bc3 Bc5 Ba1 Ba7 Bd1 Bb8 f4 Ba3 Qb2 Bc5 Ba4 Bb6 Neg3 e2 Ne3 e1B Ne2 Qf1 Nd1 Rb3 Qc2 Bd3 Qb2 Rb5 Qb3 B8a7 b8B Bg3 Bc7 Bef2 Bb8 Bd8 Bc7 Bg7 Bb6 Re8 Rc6 Be3 d6+ Kf6 d5+ Kf5 d7 Bgd4 Rd6 Bb8 Ba7 B8f6+ d8Q Bg1 Bb6 Re7 Qc7 Bg5 Qcc2 Re3 Qcb2 Bc5 Nd4+ Ke4 Nc6 Rf2 Q2c3 Rb2 Qd2 Rc2 Qh2 Ree2 Ba7 Bcf2 Bb6 Rcd2 Be3 Rc2
1qk2nB1/1Rbn1r2/1n3P1N/3Pnr2/1BQ2Rb1/NN4K1/P2br3/2Q1rR1r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 d4 c5 f4 h5 Kf2 b5 g5 e5 d6 b3 g6 h3 d5 c4 f6 c3 f5 b2 f7 h4 f6 b4 g7 h2 Qe2 h3 Qd2 e4 Qd4 b3 Qd2 c2 Qb4 e3+ Kg3 e2 Bd2 e1R Nf3 c1B Bf4 Ne7 g8Q Re2 Nbd2 b1R Be5 b2 Kg4 Ng6 Nc4 Ra7 Bc3 Bd2 Na3 Rbe1 Qc4 b1N Nd4 Rh5 Bb4 Nc3 Kg3 Rf5 Nb3 Na4 Rb1 Be7 f8R Nb6 Re8 Nf8 Qg5 Qc7 Bg2 Bd8 Rf1 h1R Re4 h2 Bh3 Qb7 Bg4 Bc7 Ref4 Kd8 Bh5 Nb8d7 Bf7 Qb8 Bg8 Ba6 Qc1 Kc8 Qh4 Bd3 R4f3 Bc2 Qc4 Bd1 Rf4 Rg1+ Kh3 h1N Rb2 Nf2+ Kh4 Rh1+ Kg3 Nd3 Rb1 N7e5 d7+ Kb7 d8N+ Kc8 Rb2 Nc5 Nf7 Ncd7 Nh6 Rf2 Qb5 Bg4 Qbc4 Rfe2 Be7 Na4 R4f3 Ndc5 Na1 Bb6 Rf4 Rb7 Bd6 Rf7 Rb3 Bc7 Rb7 Nb6 Nb3 Ncd7 Bc5 Bf3 Bb4 Bg4
1rn2krn/Qnn1b3/1QP4R/3bq2B/1B5n/P1r2bP1/2Q1NRR1/K1r1N3 w - - 0 1 illegal: No possible last move, all moves rejected
7B/1Q3n1r/Q1Pr1bR1/3kNn1b/K5qn/Pb1N2Pb/Q1R3b1/b2B2Bq w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 f4 h5 c4 b5 Kc2 e5 Kb3 d5 f6 Ke6 f7 e4 a3 e3 g6 d3 g3 d2 c5 d4 c6 d3 f5+ Kd5 g7 e2 f6 e1B Qe2 d1B+ Qc2 d2 Bd3 h4 Bf5 h3 Bg4 h2 Bh3 Be7 f8B Bh5 f7 d1N Qg6 Qd7 Bg4 Nh6 g8Q Bf6 Bg7 Rh7 f8Q+ Nf7 Qh6 Bec3 Qh8 Ne3 Nf3 Nf5 Rg1 h1B Be3 Bg2 Ra2 Ba1 Qe7 Qe6 Ne1 Nd7 Rf1 Nf8 Rf3 Ng6 Qb7 Ngh4 Bg1 Ra7 Qa6 Rd7 Nd2 Rd6 Qg8 Bd7 Re3 Qe4 Bd1 Qg4 Bh8 Bc8 Qhg7 Bd7 Kc2 b3+ Kd3 b2 Kc2 b1B+ Kb3 b4 Ndf3 Bc8 Ka4 Bd3 Rc2 Bc4 Nd3 b3 Re6 b2 Nfe5 b1Q Nd7 Bd8 Rg6 Qc1 Qb2 Bf6 N7e5 Bd7 Qbb7 Bc8 Be2 Qe1 Bd1 Be6 Ba7 Qh1 Bg1 Qd4 Qgb8 Ng7 Qb1 Beh3 Q1b2 Qg4 Qa2 Ngf5 Qbb7 Bb3+
3R1nNk/1b1Qr1nP/Q2n4/q3BQn1/1K3b2/PBn2NqR/6BP/1r2r1n1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 d4 f5 Kd2 Kf7 e4 c5 d6 g5 e5 Kg7 d7 b5 e6 f3 a3 g4 e7 c4 e8B c3+ Kd3 c2 d5 g3 d6 f2 Qe1 f4 Qe5+ Nf6 Nh3 g2 Qd5 g1N Qc6 b3 Kc3 f3 Qa6 b4+ Kc4 b2 Nd2 b1N Bf7 b3 Qa5 b2 Kb4 Nh7 Ba6 f1N Bd5 f2 Ne4 Nc3 Nf6 b1R+ Bb3 Bb7 Ng5 Ng3 Bb2 f1N Qf5 c1Q Ng8 Ra7 Nf3 Ne3 Bf1 Qe1 Bg2 Ne4 Ra2 Qg5 d8Q Qeg3 Qb6 Nd7 Qa6 Qd8 Ba1 Nhg5 Rc2 Be7 Rd2 Nf8 Rd3 Rh7 h6+ Kh8 Bb2 Bf6 d7 Re7 h7 Nd6 Ba1 Be5 Bb2 Qa8 d8Q Bf4 Qdd7 Qd8 Qb6 Ra5 Qa6 Rae5 Ba1 Ne8 Bb2 Nc4 Ba1 Ng7 Re3 Nge2 Rd1 Ng1 Red3 Re1 Bb2 Na4 Be5 Nd6 Rc3 Qc8 Rdd3 Qa8 Rc8 Nc3 Rd8 Nde4 Rd6 Qa7 Rh6 Nd6 Rh3 Qb6+ Qdb5 Qc7 Qbd7 Qa5+
N5nq/2rP1rB1/4r1r1/1N1nPQ2/bbr1nRP1/1b3K1k/1Q4N1/bB4RB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 g4 f5 d4 c5 b4 a5 e4 h5 b6 h4 g6 Kf6 d5 Kg5 b7 c3 g7 c4 b5 a4 b6 c2 d6 c3 e5 a3 Qd2 h3 Ke2 Kh4 Qd1 a2 Bg2 f3+ Kf2 h2 Bd2 c1R Nh3 c2 Qe1 f4 Ng1 Nc6 b8Q Rh6 b7 Be6 d7 Bb4 Qf1 Nce7 Ne2 Nd5 Rg1 h1B Be3 Rg6 Nbc3 Ra6 Nb5 Qe8 Rb1 a1B Bc5 Bf7 Bf8 Rae6 Rb3 Rb1 Re3 c1R Re4 Rc7 Rd4 Rbc1 Re4 Ngf6 g8B R1c4 Bh7 Ng8 Bg7 Qd8 Qb1 Qf6 Qf8 Qd8 b8N Qc8 Kf1 f2 Na6 Qe8 Bf3 Kh3 Qb2 Qb8 Nc1 Bg2+ Ke2 f1N Nd3 Nd2 Ne1 Qd8 Rd4 Qc8 Be4 f3+ Kf2 Bf1 Ng2 Be2 Bb1 Bd1 Rf4 Ba4 Be4 Nc3 Ke3 f2 Bc6 Nde4 Kf3 Nd5 Bb7 R7c5 Nac7 Qe8 Na8 Rc7 Qe7 Qf8 Qf6 Qd8 Qf5 Qf6 Bf8 Qh8 Bg7 f1R+ Qf2 R4c6 Ne3 Ref6 Qe6 Nec3 Rf5 Nde7 Kf4 Rg5 Qa2 Rc1 Qab2 Bfb3 Bg6 Rb6 Bh1 Rbe6 Ng2 Rf7 Qfc2 Ned5+ Kf3 Ne3 Rf4 Ned5 Qf5 Rc2 Qf6 Rc1 Bf5 Rg6 Bb1 Ne4 Qf5 R1c4
b1N1b3/3P2r1/6Pn/1b1B2R1/1n1NqBRP/1Qb1nQbk/N1R1Kn1r/r7 w - - 0 1 illegal: No proof kernel
Q1qrB1Rn/K3N1q1/1P4P1/r3P1q1/N2kbn1R/1r6/Q3Qq1b/1rBr2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 e4 a5 b6 c5 d6 h5 d3 f5 b5 h3 g5 f3 Ke3 a4 g6 f2 b7 f4+ Ke2 c4 d7 h2 b6 h4 Kf3 c3 Bb2 a3 Qc1 a2 Bh3 f1Q+ Kg4 f3 Qe3 f2 Kf3 Na6 b8Q+ Bd6 Qa7 Nc7 Qe2 Bb7 Bc1 c2 Nc3 Nd5 Na4 Qg5 d8Q Nh6 Bd7 h3 Be8 Nf4 Ke3 Nf7 d4+ Ke6 d5+ Ke5 Rb1 a1Q Qa5 Bc7 d6+ Bd5 Qad2 Ra5 d7 Rf8 Qa8 Nh8 d8R Qe1 Nc5 f1R Na4 Qeh4 Rb4 Rd1 Rb8 Qb2 Rd8 Qhh6 Rc8 Qg7 Nf3+ Ke6 Nd4+ Ke5 Rg1 h1R Rd8 h2 Nf5 Qa2 Ne7 Bb8 Ba3 c1Q Rc8 Qc7 Bc1 Bc6 Rd8 Qc8 Qc2 Qaf7 Qa2 Qff6 Rg4 Rhe1 Rg1 h1R Rc4 Rd6 Rd4 Rh3+ Kd2 Rd1+ Kc2 Rh1 Kb3 Rdd5 Kc4 Rdb5 Rd3 Rb3 Rh3 Nd5 Rh6 Qf2 Rh4 Nf4 Bd7 Rf6 Rg8 Rfd6 Be8 Bc7 Bd2 Rd8 Be3 Bb5+ Kc5 Bc4+ Kc6 Bd3 Bd2 Kd4 Bc1 Qh3 Kb7 Be5 Qa6 Qc8+ Ka7 Qc6 Bd2 Qc8 Rg3 Rdb1 Bc1 Rd1 Rg1 Bb8+ Ka8 Ne6 Qa7 Rf5 Qb7 Bh2+ Ka7 Nf4 Qa8 Rfb5 e5 Be4 Nb2 Rbd5 Na4 Ra5+
1NQn4/B3b1NB/Pq1n2rb/1b2P1Rq/3qP1Qq/3R1b2/k6K/r1qQ2B1 w - - 0 1 illegal: No possible last move, all moves rejected
BNQn1q1k/B4bRP/PPn2bK1/1bNb4/6R1/rq2b3/Rnn1rB2/5Q2 w - - 0 1 illegal: No proof kernel
rb1nq1B1/1q3P1K/Nq1NnP2/q2r2qR/2P1b1n1/6B1/QR5B/3QnkN1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 h5 b4 e5+ Kf3 a5 g4 d3 c4 d4 Ke4 d2 f4 h3 b6 a4 b7 h2 b5 a3 b6 a2 Bh3 h4 Qb3 d1N Nf3 d3 Qa4 d2 Qb4 Nc3+ Ke3 d1Q Ba3 e4 Qc5 Nc6 b8B Rh5 b7 Qe8 Qa5 Qb3 Ng1 Ne2+ Nc3 Bd6 Rb1 a1Q Rb2 Ned4 Bc7 Be5 b8N Nd8 Na6 Nh6 Bad6 N4e6 Qa2 Bb7 Bb8 Qb4 Nb5 Bd5 Bg2 h3 Bdc7 Qa5 Nd6 Qb1 g5+ Kg7 g6 Kf6 g7 Ng4+ Ke2 e3 g8Q Be4 Qh7 Qc1 Qd7 Qb6 Qda4 Qc3 Qd1 Qc1 Ke1 e2 Bf3 Qa1 Kd2 e1N Bg2 Qc1+ Ke2 Qc3 Bf3 Qca5 Bg2 Kg7 f6+ Kg6 f5+ Kg5 f7 Kh4 f6 Kg3 Bf3 Bb7 Be4 Rf5 Bd3 Kg2 Bc2 Rg5 Bh7 Be4 Bg8 Bf4 Nc8 Rd5 Bd6 Be3 Bg3 Bc5 Bbe5 Bd6 Bef4 Bc7 Nd6 Bb8 Qd4 Nf2 Ke3 Kf1 Be5 Nc7 Kf4 Ng4 Kg5 Nce6+ Kh5 Qbc5 Qd1 Qcb6 Ne2+ Kg2 Rf1 h1Q Rf5 h2 Kg6 Qhg1 Kh7 h1Q+ Bh2 Qge3 Bg3 Qf4 Ng1+ Kf1 Kh8 Qhf3 Rh5 Qg5 Nb4 Qb3 Na6 Bh1 Kh7 Qb7 Rh3 Q3b6 Rh5 Be4+
1rN5/1B1PNr2/b1n1R1rr/1k1q3Q/2n3r1/P4nbK/1B3PR1/n1QB1q1N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 g4 c5 g5 h5 a3 e5 f6 b5 d6 Kc6 g6 c4 d7 c3 g7 e4 f7 b3 Ra2 h3 Bc4 e3 Kf1 e2+ Ke1 b2 Bb3 h4 Nf3 h2 Ng1 b4 Nd2 b1Q Ne4 c2 d5+ Kb5 d6 Ne7 g8B h3 Bd5 b3 Rb2 Ba6 Bb7 Qc8 Bf4 c1N d8Q Nf5 d7 Nd6 Qe8 Rh4 Kd2 e1R Rc2 b2 Be5 Qc5 Ne2 Nc6 Rg1 h1R N2g3 h2 Bd4 Rf1 Ke3 Rb8 Kf3 Nb3 Kg2 Na1 Re2 Qg5 Bh7 Nc4 Re1 Bd6 f8N Qd3 Qc1 b1N Bb2 Nbd2 Ng6 Qgd5 Ne7 Nf3 Qh8 Bc7 Qe5 Rf4 Re2 Rf7 Nd6+ Ka5 Ndc8 Kb5 Qeg5 Re1 Re6 Re4 Qf5 Rf4 Qe5 R4f6 Be4 Rg6 Qf5 Qd1 Bc2 Qd3 Bd1 Be5 Re1 Rf1 Re4 h1R Rg4 Rhh6 Qh5 Rg1+ Kh3 Bc7 Nh1 Rg2 Rge4 Bf4 Re1 R2g4 Rg1 Qf1+ Rg2 Bg3
1b1q1n1n/1QnP1P1N/1R5Q/2NP4/r2QK3/kb4n1/b1BrN1b1/Bb1R1q2 w - - 0 1 illegal: No possible last move
1NQb2Rq/2PP1n1P/n2n1Bq1/1qk3n1/2N2n1R/2KB1B1q/1r6/r1NbQ3 w - - 0 1 illegal: No proof kernel
2Q1r2n/P4R2/Q2r1nk1/n1Bb3n/Qn1N1P2/2P2B1q/1brB2K1/1r1qR2N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Kf7 f4 b5 Kf2 d5 h4 e5 h6 g5 f6 e4 c3 d3 a5 e3+ Kg2 b3 a6 d2 a7 b4 h7 e2 h5 e1N+ Kh2 g4 h6 d4 Qc2 d1R Qe4 d3 Qf3 d2 Bb5 b2 Bd7 b3 Bb5 Nc2 Na3 b1N Qe3 b2 Nf3 g3+ Kg2 Kg6 f7 Nb4 Bc4 Be6 Bf1 Qc8 Ba6 Ne7 Ng5 Nd7 Nb5 Bd5+ Ne4 Na3 Nd4 b1R Qe2 Nc4 Bb7 Na5 Qa6+ Nf6 Re1 Rg8 h8Q Qe6 h7 Re8 Ra2 Qd7 Rb2 Qh3+ Kg1 g2 Nf2 Rg7 Nh1 Rg8 Kf2 g1N Bc6 Ne2 Ba8 Bg7 f8B Ng3 Rb3 Nh5 Bb7 Nf5 Bc5 Bf8 Ba8 Ne7 Bc6 Nc2 Rb7 Rg7 Qg8 Nb4 Qe6 Rg8 h8Q Rg7 Qc8 Rg8 Ba3 Rdc1 Kg1 Rc2 Bc1 d1Q Bd2 Rd8 Rc7 Rd6 Qd7 Nf5 Ba8 Nh6 Qa4 Nf7 Kf2 Be7 Bb7 Ra8 Qc8 Nh8 Rd7 Bf8 Rf7 Be7 Qc7 Re8 Qc8 Ba2 Bg2 Bd5 Bf3 Nbc6 Re4 Rdd8 Bb6 Ba3 Re1 Rd6 Bc5 Nb4 Kg1 Bb2 Kf2 Qd7 Kg2 Qh3+
1b4r1/q1QbBq2/2n5/1b1r4/k2B1Nn1/rr1PP2B/nQRQnKPN/3R4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 b6 f5 b7 a5 b5 h5 e3 c5 d6 h3 b6 Kc6 d7 c4 Qe2 Kb5 Ra3 h2 Nh3 h4 Ng1 a4 Kf2 h3 Qh5 f3 Qg4 f4 Ne2 c3 Qg7 c2 Ra1 a3 Qf6 a2 Qe7 Nc6 b8Q Nh6 b7 Ra3 Qbe5+ Ka4 b8B Qe8 d8Q Rg8 Ng1 Bd7 Q7d6 Ng4+ Ke1 f2+ Ke2 Qf7 Q6c7 Bd6 Bb2 c1N+ Kf3 Rb3 Bd3 f1B Bf5 Bb5 Ne2 Qg7 Rd1 h1R d3 h2 Nd2 Qe7 Rb1 a1R Bd4 Raa3 Nf1 Na2 Rb2 Qg7 Rc2 Qe7 Ke4 f3 Nf4 f2 Kf3 Qh7 Bba7 Qe7 Bac5 Qf7 Qb7 Bb8 Be7 Qg7 Qec7 Qf7 Nd2 f1N Qf8 Ng3 Nf1 Ne2 Qbb6 Nf6 Bh3 Ng4 Qg7 Rg1 Qf6 h1Q Nh2 Re1 Qh4 Rf1+ Qf2 Qg1 Rdd2 Ra1 Rd1 Qe1 Qbb7 Qa5 Qe1 Qa7 Qd2 Nge5+ Kf2 Rc1 Rb2 Rc5 Rc2 Rd5 Qbb6 Ng3 Qc5 Ne2 Qcc3 Bc8 Qa1 Bd7 Qb2 Ng4+
NK4Qn/1b2q1N1/5Rqq/2Bq1Rb1/4Pr1k/PBB4P/1QRr2b1/b5nn w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 d4 f5 e3 c5 h6 b3 a3 f3 h7 f4 d6 c4 d7 f2 d5 f3 d6 c3 h3 c2 Bd3 f1B Ke6 f2 Qd2 b2 Qb4 Bg2 Bc4 f1Q Ba2 Qe1 Bb3 Nc6 Ra2 Bb7 Nc3 b1Q Ne4+ Kh4 Kd5 g5 Rh2 g4 Ne2 g3 Ke6 Nf6 Nd2+ Ng4 Nd4 Ra4 Nc4 Nf2 Nb6 Bg7 Na8 Nh1 Bd2 c1B Rc2 Qd1 Bc3 Ne5 Qc4 Qf8 d8R b4 d7 Ng6 Rf2 Qe2 Rf5 Qba2 Qc8 Rg8 h8Q+ Qh5 Re8 Qh6 d8B+ Bf6 Qg7 Nh8 Kd7 Qd2 Kc7 Qe7+ Kb8 Bg5 Rf2 Bb2 Bb6 Ba1 Ne6 Qd5 Bc5 Rf8 Qe5 Rf4 Rf8 Rd4 R2f5 Rd2 Ba2 b3 R8f6 b2 Ng7 b1Q Bb3 Qbd3 Qg8 Rf4 e4 Qa6 Rf7 Qag6 R7f6 Bf3 Qd4 g2 Qb4 g1N Qd4 Rd3 Rc2 Rd1 Qd2 Bg2 Qc1 Rd3 Qb2 Rd2
2bQ2qb/8/3N3B/r2BP1n1/r4nqr/1PNB3R/Kb3qP1/Q1NbkrR1 w - - 0 1 illegal: No possible last move, all moves rejected
2R2n1q/1N4n1/BQ5P/1P3b2/Bqnqq2R/1Rb1nQ2/3Pb3/KrkrN1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Kd7 h4 Kd6 b4 Ke5 d6 Kd4 d7 g5 e5 c5 e6 a5 b6 f5 e7 a4 e8B c4 b5 c3 b7 c2 h5 g3 Ra2 f3 Rh3 f4 Ne2+ Kd3 Rh1 a3 Bg2 g4 Rf1 Nh6 Bf7 Nf5 Bb2 c1Q Bg8 Qc4 Bc1 Qa5 d8R+ Nd7 b8Q Bg7 Ng1 Qab4 Bh1 g2 Rf8 g3 Rb2 a2 Rd8 a1Q Rc2 Ra2 Bd5 Nf8 Rb2 Rg8 h6 Be5 Nh3 g1N Ng5 g2 Nc3 Be6 Qb3 f2+ Kd1 Nf3 Rc8 g1Q Qb6 Rg6 Bb7 Qe4 Ba6 Bd4 Rb1 Ne5 Bb2 f3 Kc1 Nc4 Na4+ Ke2 Rd1 f1B Nc5 f2 Nf3 Rf6 Qa3 Qg8 Qb3 Qh8 Nb7 Ng7 Bc3 Be5 Bd4 Rf4 Bg2 Bf5 Bh3 Rh4 Bg4 Rh1 Bh5 B1h3 Rg1 f1N Rg4 Bf6 Rh4 Bhg4 Bf2 Qae5 Qd1+ Kd3 Rb2 Nfe3 Kb1 Re1 Bg1 Qec3 Rb3 Rb2+ Ka1 Rf1 Ra3 Re1 Qc1 Ke2 Qb1 Qcd3 Qc1 Bc3 Qb1 Qdd4 Bf7 Ne5 Bb3 N5c4 Ba4 Rf1 Qe1+ Kd3 Rb3 Kc2 Ng5 Bd1 Qe2 Kc1 Nf3 Re1 Qf1 Be2 Qf2 Rd1 Ne1 Qed3 Qg3 Q3e4 Qf3 Rb1+
1Q2n2B/2brN2r/2R1rP2/n1bqP1N1/1r2qP2/1b3Q1B/R1n4B/2kb1KR1 w - - 0 1 illegal: No proof kernel
3rR1qk/r2q2Nq/BQPKB2R/6Rq/b1P1Q1Pb/n1r3N1/2n3b1/B3b3 w - - 0 1 illegal: No possible last move, all moves rejected
nRK2r2/1N3r2/1P2nQBP/1N2b1Rb/q2R1qQ1/3BB2q/2br2P1/k2qb3 w - - 0 1 illegal: No proof kernel
3qQ2b/1k1B2PR/4r2B/2P2r1q/bKN2N2/Q1Q1b2q/1RPn1r1R/1n1b2r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kd2 d5 Kc3 Kd7 g4 Kc7 e4 a5 b4 h5 b6+ Kb7 b5 f5 e5 a4 e6 h3 g5 h4 e7 a3 e8R h2 g6 f3 Qd3 f2 Bd2 f4 Qf5 h3 Kb4 f3 Qf4 a2 Qf5 d4 Re7+ Nd7 Na3 d3 Kb3 Ra6 Rd1 a1B Qe5 Rh5 Kb4 Bh6 Qg5 Nf6 Be1 d2 Qg2 Rf5 Rh7 Ne4 Rb1 d1B Bd2 Nc3 Nc4 Be3 Rb2 Nb1 Be2 f1Q Qg3 f2 Bg4 Qg2 Ne2 f1R Nf4 Qd5 Qe1 Rf2 Bc1 Qf7 Qc3 Nf6 Bd2 Bd7 Bc1 Kb8 b7 Ne4 Bd2 Kc7 b6+ Kc6 Bc1 Ned2 b8Q Be8 Qd6+ Kb7 Qdd3 Ba4 Qa3 Qfd7 Qdc3 Qf7 Re1 h1Q Re2 h2 Bh3 Kb8 b7 Re6 Bg4 Ka7 b8Q+ Ka6 Qbe5 Kb7 Qh8 Qf3 Qe8 h1R Bh3 Rg1 Bg4 Rff1 Reh2 Rf2 Bh3 Bd4 Bg4 Bh8 g7 Qh3 Be2 Qfh5 Bf3+ Kc8 Bc6 Kc7 Bd7 Kb7 Ng2 Nb3 Bh6 N3d2 Rb3 Bb2 Nf4 Bc1 Rb2 Ne4 Qe5 Be3 Qec3 Ned2
Bnb3RR/1N3P1K/b1k1r3/2b3P1/PnN3rr/3Qq3/1BQq1r1q/2b1BQ2 w - - 0 1 illegal: No possible last move, all moves rejected
Q1Q3BB/5P1n/r1Rr1N1N/q1P1P1b1/2qnq3/3nr1rK/3RqR2/1b1B2k1 w - - 0 1 illegal: No possible last move, all moves rejected
q5q1/P3k1b1/1K1b1RP1/5Qrn/1BQ1n1RP/Q3rBb1/1N6/B1q1qbNn w - - 0 1 illegal: No proof kernel
1r4R1/P1P1Q1bb/1Bb5/2NR1bnq/2nNbbr1/3BP1Qr/2r5/1k1NQK2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 c4 Ke7 a4 Ke6 h4 Kf5 a5 Ke4 h6 b5 c5 g5 h7 f5 e3 d5 c6 d3 e6 g4 c7 b3 e7 f4 e8N g3 a6 g2 a7 d4 h5 b4 h6 d2+ Ke2 f3+ Kf2 d3 Rh3 b2 Ne2 g1B+ Kg3 b3 Ra6 f2 Kg2 Bh2 Rh5 Nf6 Ng1 Bg7 Ra2 Bf4 Raa5 Nbd7 Qe2 d1B Bd2 Rb8 Ra3 Ne5 Rh1 Nc4 Ra5 Bf5 Nf3 Qd5 Nd4 Bc2 Bb4 d2 Qe1 d1R Rg1 Rd2 Bc5 Bd7 Be2 f1R Bb6 Qh5 Rd5 Bc6 Qg3 Rg8 h8Q Rf3 h7 Bd3 Qe1 Rh3 Kf1 Rc2 Rg2 Nd7 Rg4 Nde5 Rg1 Nf3 Qg3 Bge5 Ng7 Ng5 Nge6 Rg6 Qf8 Bg7 Na3 b1B h8Q b2 Nab5 Ba2 Qb4 b1B Qbe1 Bb3 Qf8 Ba4 Qf6 Bd7 Na3 Bac6 Nab5 Bc8 Nd8 Bf5 N8e6 Nf7 Qe7 Rg4 Rd7 Ng5 Nc3+ Ke5 Nd1 Bde4 Rd8 Bh7 Rg8 Bef5 Rd8 Ke4 Rd6 Nb2 Bb5 Nc4 Rd5 Kd3 Q1b4 Rc3 Nc5+ Kd2 Ba6 Kc1 Qa5 Rc2 Qae1 Ra2 Rg2 Bbe4 Rg1 Kb1 Rg2 Na3 Bd3+ Rc2 Na6 Nf7 Ne6 Bge5 Nac5 Nc4 Qf3 Rgh4 Rg8 Ng5 Qfg3 Rg4 Nd4 Bg7
3bKN2/4r3/N2B2b1/2nB1RN1/2qb1R1Q/2nRr1n1/b2PP1P1/r1krQn2 w - - 0 1 illegal: No possible last move, all moves rejected
5bB1/Rn4Q1/1BPbRNK1/bB6/r1P2QbP/1q2Nr1N/n2n2nr/k2r4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 dxc5 exf4 Kf2 Ke7 c4 Ke6 b4 Ke5 e4 a5 c6 d5 b6 f5 b7 g5 h3 a4 b5 a3 b6 g3+ Kf3 d4 Ne2 g2 Qe1 g1R Qg3 a2 Qf2 d3 Qh4 d2 Qh6 d1R Qh4 g4+ Kf2 f3 Ke3 g3 Bg2 f2 Qh5 Nh6 Qg4 Nf7 Nbc3 Ra4 Bf3 g2 Nf4 Na6 b8Q+ Nd6 b7 Nb4 Ncd5 Rgf1 Qg7+ Qf6 Qbc7 g1B b8N Bh2 Qcf7 Nb7 Nd7+ Kd6 Rg1 Qb2 N7f6 Kc5 e5 Rh5 e6 Qb3+ Nc3 Bg3 e7 Rh8 e8B Be6 Ng6 f4+ Ke4 Bg4 Ncd5 Rh5 Be2 f3 Ne3 Bgd6 Nf4 Rh7 Qc7 Rh6 Bf7 Rh4 Rb1 a1B Bg8 Bc3 Ra1 Na2 Bd3 Kb4 Bc2 Be1 Bd2+ Ka3 Ba5 Kb2 Bb6 Ba5 Qcf7 Bh5 Kf5 Bg4+ Kg6 Rd3 Qe7 Rfd1 Re1 f1N Qc7 f2 Re2 Nd2 Re1 f1N Qb8 Rh5 h4 Rf5 Nh3 Rf2 Qbc7 Rh2 Qb8 Bde7 Qf4 Bd6 Re2 Nf3 Re1 N1d2 Re2 Qc3 Bb3 Ne1 Bc2 Ng2 Re1 Rb4 Ba4 Qb3 Bb5 Ra4 Nf5 Nb4 Re6 Rf3 Ra3 Na2 Ne3 Bc3 Ba7 Ka1 Bb6 Rb4 Ra5 Ra4 Ra7 Ba5
b1BrR3/1N1P2K1/1br1r2R/3n2P1/k6N/nqQ1B3/Prn4B/1nbQb2Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 Ke4 c5 g4 b5 d4 h5 f4 b3 d6 Kc6 d7 h3 f6 h4 Kf5 b2 Kg6 e4 g5 c4 f5 e3 f7 h2 f6 h3 Nf3 c3 Ng1 c2 Qd3 b4 Qf5 e2 d5+ Kb5 d6+ Ka4 Bf4 e1B Bd2 c1B Qf2 b3 Qg2 Bb7 Nf3 Na6 Be3 Qb6 d8Q Rb8 Na3 b1N Nb5 b2 Nh4 Ba8 d7 Nb4 Nd6 Qb7 Ba6 Na3 Qc8 b1N Qc3 Nbc2 Qf3 Qd5 Bc8 Qb3 Nb7 Bc5 f8Q Ne7+ Kg7 Nd5 f7 Bb6 Qd6 Rh6 f8B Re6 Qdg3 Rc6 Qd1 Re6 Qg2 Rc6 Rg1 h1R Bd6 Rh2 Qh1 Rg2 Rf1 h2 Rf6 Rf2 Rg6 Rf6 Rh6 Re6 Qg1 h1R Bh2 Bg3 Qgf1 Be1 Qff3 Rf1 Qg2 Rf8 Qh1 Nd2 Rb1 Rd8 Rb2 Nd4 Rc2 Ndb1 Rf2 Ndc2 Rf8 Rc7 Rfh8 Rcc6 Re8 Ba7 Nf3 Qc4 Na5 Rb2 Nh4 Bb6 Nb7 Qb3
1rBr4/n2n3B/1bQK4/1R1N2Qr/k2q4/1n2N1Qp/1qqPbPRP/5bN1 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 f5 gxf5 dxe4 Ba3 Na6 axb5 Bd7 b6 Nb8 b5 Bc8 Bb4 cxb4 Ke2 Kd7 Ke3 g5 Kd4 h5 Ke5 a5 c4 g4 f6 e3 c5 g3 f7 b3 b7 h4 b6 Kc6 Nc3 g2 Ne4 e2 Ng3 Kb5 c6 b2 c7 b1B Nh5 h3 Qe1 a4 Ng7 a3 Nf3 g1R Nf5 a2 Qd1 Rg5 Ng1 Nd7+ Ke6 Bd3 b8Q e1Q+ Ne3 Ba6 c8B Be2 b7 Rgh5 Qf4 Rb8 Qc2 Qb1 Nf3 Qb2 Re1 a1N Qg3 Nb3 Qg5+ Ka4 Rb1 Bg7 f8N Bd4 Kd5 e5 Ng6 e4 Ng1 Ne7+ Kd6 Bb6 Nf4 Nc6 Nfd5 Na7 Qc6+ Bab5 Bg2 Bf1 Bf3 Rg8 Bg4 Qdf6+ Be6 Qfd4 Bf5 Rd8 Bh7 Qc2 Ne2 Qdb2 Rg1 Qd4 Rg2 Qcb2 Nc4 e3 Ng1 e2 Ne3 Qc2 Rb2 e1Q Rb1 Qec1 Rb2 Ra8 b8Q Be2 Ke7 Qa1 Qbg3 Rb8 Kd6 Bf1 Qc3 Bbe2 Rb1 Na5 Rb5 Nb3 Qc6 Qab2
1N2rr1Q/1RQ1n1N1/1BqbPq2/3B1bk1/2Pb4/2P4R/K2p2q1/rnR1B1n1 w - - 0 1 illegal: No possible last move, all moves rejected
5BR1/1qrB1q1R/1NPP1N2/n6Q/2B2Q1b/N1b2P1K/p1b2k1r/2rqnn2 w - - 0 1 illegal: No proof kernel
BbRqK3/n3n1PB/5P1r/3q1Np1/1n2N1q1/R1BQ1r2/bP2Q1r1/5Nbk w - - 0 1 illegal: No proof kernel
R3rN1r/B2p4/NQ1b3Q/K2nPB1n/P4qbB/2k4q/2P3Rr/b2Qn1q1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 e4 Ke6 h4 b5 a4 g5 h6 f5 h7 d3 h5 b3 Kc3 b4+ Kc4 b2 Kb5 g4 h6 f4 Be2 f3 Nc3 b1Q Bb2 g3 Ra3 b3 Rh3 f2 Bh5 f1Q Rh1 d2+ Be2 g2 Nh3 g1B Na2 Qg5 Nb4 Bd4 Na6 Nf6 Ka5 Nh5 Bd3 Bb7 Rh2 Qgf5 Rg2 Q5f4 Ra1 Qc1 Rb1 Bd6 Ba3 b2 Bc5 Re8 h8B Qh1 h7 Nc6+ Kb6 Nb4 Bf6 Qhh2 h8Q Nd5+ Ka5 Rad8 Qh7 Rh8 Ba7 Rde8 Bh4 Qhg3 Nf2 Qh3 Ng4 Ba8 Nf6 Bc6 Qf1 d1R Qh6 Rd2 Qh1 Qg1 Nh7+ Qf6 Re1 b1N Ree2 Ba1 Nf8+ Kf7 Rg8 Qf4 Qf3 Bb7 Reg2 Re2 Qf1 Nd2 Qe1 Nf3 Qd1 Ng5 e6+ Ke7 Qh7+ Kf6 e7 Ke5 Qg6 Nf3 Qh6 Bc5 Qb6 Kd4 e5 Kc3 Bf5 Ne1 Qh6 Nc7 Qb6 Bf3 Qh6 Bg4 Qb6 Ra8 e8Q Bd6 Qg6 Nd5 Qh6 Re8 Ne6 Re7 Ra8 Ree8 Nf8 Qhf3 Rg3 Rh2 Rg2 Qh3
1bRn2r1/1nQ2R2/2Q1RK1P/nBbN1rnP/1N4k1/qbB5/n2r1P1p/4B3 w - - 0 1 illegal: No proof kernel
5nQ1/3NK2Q/P5pR/NN1P2n1/2b3r1/1n1RbnnQ/Pqb1Bk2/B1r2r2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 e4 Kc5 d3 Kd4 h5 f5 e5 b5 h6 c5 a6 g6 e6 b4 e7 b3 e8N b2 d6 f3 Kg3 f4+ Kf2 c4 h7 c3 d7 g3+ Ke1 g2 Kf2 c2 Be2 Bc5 Rh2 Nf6 Nd6 Qb6 d8Q Be6 Qc7 Nbd7 Nc3 b1B Nb7 Rac8 Na5 Qb2 Qf1 Nf8 Rh6 Bc4 Qf7 Bb6 Qg8 Rc6 Bd2 c1N Be1 Nb3 Nb5+ Kc5 Bd2 Bc2 Bc3 Ba7 Rd1 Ne4+ Ke1 Ng5 Kf2 Qa3 Ba1 Qb2 Nc7 Kd4 Nb5+ Ke5+ d4+ Ke4 Rd3 Rc5 Nh3 g1N d5 Rc8+ Ke1 Be3 Nf2+ Ke5 Ng4+ Ke4 Qh3 f2+ Kf1 N1f3 Kg2 f1N Ne5 Ng3 Nd7 Ne5 Rd2 f3+ Kh2 f2 Rd3 f1R Kg2 Nh5 Kh2 Nef3+ Kg2 Nf6 Kg3 Nh5+ Kg4 Ng3 Qf7 Rg8 h8Q Rg7 Qfg8 Re7 Qgh7 Re6 Q8g8 Rb6 Nd4 Rb4 Nb5 Bc5 Rd1 Ke3 Rd3+ Kf2 Kf4 Nfd4 Ke5 Rc7 Kf6 Ndf3+ Nc3 Be3 Ke7 Bb5 Rd1 Rg4 Rd2 Bbd3 Nb5 Rc3 Rd1 Bc4 Rd4 Bf5 Rd3 Rcc1 Rd2 Bb1 Rd3 Bc2
bQn5/1KQ3nP/1NRP1bP1/2Rp2n1/1B5r/6Q1/1r1rNNr1/qB2rkb1 w - - 0 1 illegal: No possible last move
1r1r2bQ/1q4P1/B1Qn1nr1/4Br2/2b3pR/bN4RP/2PK1QN1/3nBr1k w - - 0 1 illegal: No proof kernel
B4B2/b1rPpb1Q/n1nr3R/1N3n1K/QRN1qb2/Q2n1P2/P2nR3/r6k w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 d6 b5 d7 c5 d5 h5+ Kg5 b3 g4 h3 f6 b4 d6 h2 f7 h4 Ba3 h3 Nf3 c4 Ne5 b2 Nc6 c3 Ba6 c2 Qd4+ Kf3 Qg7 Kg2 f3 c1B+ Nd2 b1N Bb2 b3 Kg6 Na3 g5 Nb5 Na5 Nc7 Rb1 Ra7 Qc3 Nh6 Qb4 Bg7 f8Q Nc6 Bb7 Bd4 Kh5 Na6 Ba8 Rc7 g6 Ba7 Bg7 b2 Ne4 Bf4 Qa3 Nf5+ Bh6 Qe8 d8R Be6 Nc4 Bf7 Nc3 Qd7 Rbe1 b1N Rb8 Qe6 d7 Nd2 Rb4 Qe4 Nb5 Rg8 Qg7 Rb8 Qd4 Rb6 Rhf1 h1N Bf8 h2 Re2+ Nf2 Rh1 Bg8 g7 Be6 Rc1 Bd5 Rc3 Kh1 g8Q Nd3 Qh7 Be6 Rg2 Bf7+ Rg6 Nce5 Rc2 Rd6 Rcb2 Be6 Rh6 Nc6 Qdc3 Bg8 Qa4 Bd5 Qca3 Bf7+ Kg4 Kg2 Rc2 h1R Rcb2 Ra1 Rc2 Bg8 Kh5 Kh1 Rcb2 Nb1 Rg2 Nd2 Re2 Bf7+
kBn1R1q1/2p5/NB1Q1r1b/2nn3N/1QP2rR1/1b2r1P1/1BPb2r1/r3NK2 w - - 0 1 illegal: No possible last move, all moves rejected
r2bK3/pbPb1r1Q/Q7/1bQnN1b1/1r3P1R/2B2NnB/2P1n3/3k1NqR w - - 0 1 illegal: No possible last move, all moves rejected
2N1Q2n/n3nqBn/4R3/7N/r1pr1NbP/b1P3PQ/B1nq1R1B/2k2Kb1 w - - 0 1 legal: proof: d4 h5 f4 g5 a4 gxf4 g3 e5 dxe5 b5 axb5 h4 Qd5 h3 Qg2 hxg2 b4 Ke7 h4 Ke6 e4 d5 b6 c5 b5 f5 b7 a5 b6 a4 c3 d4 Na3 c4 Nb5 f3 Bd3 f2+ Ke2 f1Q+ Kd2 a3 Na7 a2 Rh2 f4 Nf3 Nh6 Bb2 Nc6 b8B Nf7 b7 Ba3 Bb1 d3 Ng1 f3 Bc1 f2 Nh3 Rf8 Bd6 Nh8 b8Q Rf4 Bc5 Qd5 Ke3 d2 Qb2 Bd7 Nc8 Ra4 Bf8 Rg4 Bg7 d1N+ Kf3 Na7 Be3 Qe1 Bb6 f1N Bg1 Nde3 Qe2 Qed1 Kf2 Nd2 Qf1 Qc2 Ke2 Nf5 Ke1 Kf7 e6+ Kg6 e5 Rd4 e7 Qf7 e8N Ne4 e6 Nf6 e7 Nh7 Nf6 Be6 e8Q Ne7 Nf4+ Kf5 N6h5 Ke4 Rh1 Bg4 Bh2 g1B Qh3 Be3 Rf1 Bg1 Rf2 Ke3 Kf1 Qb2 Ne2 Kd2 Nef4+ Kd1 Be4+ Qc1 Rb1 a1N Rb6 Qe3 Re6 Qd2 Bb1 Nc2 Ba2 Kc1
2qRb3/kNBq1Qqr/q2r1P2/3pP2b/NPR1B2q/4N1Q1/6n1/1BbK2n1 w - - 0 1 illegal: No proof kernel
2nk4/2Rr1n1Q/3P1P1q/q1Rrb3/1Rrn3N/1N1npB1b/QBQ2P2/2K4n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 g4 e5 b4 h5 d4 c5 Kd2 a5 f6 a4 d5 e4 g5 c3+ Kc2 e3 g6 h3 b6 h4 g7 a3 b5 c4 b7 h2 b6 a2 Bg2 h3 Bf3 Rh7 Qd3 Ra5 Bg2 Nc6 b8Q Nce7 b7 Nh6 g8Q Nf7 Kd1 c2+ Ke2 c3 Bb2 c1R Qd1 c2 Nd2 Kd7 Rb1 a1N Bf3 Nb3 Qa8 Nd4+ Ke1 Rb5 b8R Qa5 Rb7+ Kd8 Rc7 Rg7 Qb7 Bg4 Qa8+ Nc8 Qh7 Bd6 Qa7 Bg3 d6 Rd5 Qa6 Be6 Qc4 Be5 Qa2 Nb3 Ke2 Nd4+ Kd3 Bg4 Nb3 Bd7 Bg4 Be6 Nf3 Bd7 Rg1 h1N Nh4 h2 Bf3 Bh3 Qe2 Rf1 Rg5 c1N+ Ke4 Rd1 Qc2 Nd3 Rh5 Rc5 Rf5 Rc4 Rh5 Bg3 Rhc5 Be5 Qc1 Nf4 Be2 Nb5+ Nd4 Bg2+ Bf3 Nh6 Nf5 Rd7 Bc3 Nf7 Rb4 Rd2 Bb2 Bf1 Be2 Ng3+ Kf3 Rd3 Nb3 Rd5 Qd1 Nd3 Qc2 Ne4 Bd1 Bg2+ Ke2 h1Q Qab1 Qh3 Qa2 Qh6 Nh4 Bf1+ Kf3 Bh3 Ke2 Nf4+ Ke1 Ng3 Bf3 Nd4 Kd1 Nh1 Kc1 Nd3+
n2BB3/1rb5/P5N1/3b1R1P/KbPnq1R1/p1kNQB2/b3qb2/qr3R1Q w - - 0 1 illegal: No proof kernel
R1Q5/2N2k1N/p3n2b/P1b1qP1r/Nb1b2P1/2B1nQ1q/q2r1b1B/K1R4B w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 f4 e5 a4 b5 d4 h5 Kd2 e3+ Kc3 a6 Kb2 h4 c4 h3 d5 e4 d6 h2 a5 b4 c6 e2 d7+ Kf7 c5 e1B c7 e3 c8Q e2 f5 b3 c6 Rh5 c7 Nf6 Nh3 g1B Qc2 g2 Qd1 Beb4 Nc3 e1B Bf4 Qe7 d8B Qe5 Qf3 Bd4 Rc1 g1B Ka1 Nbd7 Bg2 Nd5 Bf6 Bef2 Bg7 Nc5 Ng5+ Ke7 Nh7 Ne3 Bh8 Bh6 Bg7 Ne6 Bg3 Qd5 B7e5 Bdc5 Na4 Kf7 Bc3 Qe5 Bf4 Nd5 Bg3 Bfd4 Bf4 Bgf2 Rhd1 h1Q Bh2 Qf1 Bh1 Qh3 Re1 Qf4 Re5 Ne3 Rd5 Rb8 Rd8 Rb5 Qcb7 Qe4 Ra8 Qe5 Qb8 Rb7 c8N Rd7 Ne7 Rd8 Nd5 b2+ Ka2 Rd7 Nc7 Rd6 Qc8 Rd7 Kb3 b1Q+ Bb2 Qc2+ Ka2 Bdc3 Ka1 Rd2 Bg2 B3d4 Bh1 Qc4 Bc3 Qa2#
RbQ1B2q/4NR1P/3b2qQ/Pprb1rB1/6KB/1rrnPr2/7k/Q3n2N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 d4 Kg5 a4 Kh4 h6 b5 a5 c5 h3 f5 d6 g5 d7 c4 d5 c3 h7 c2 d6 b3 Qd2 g4+ Kg2 g3 Kf3 b2 Qe3 g2 Qa7 Nf6 Qd4 Nh5 Qg7 Na6 Ra2 Bb7+ Kf2 f3 Qh6 f4 Nc3 b1Q Nd5 Nb4 Ne7 Bd5 Be3 Qb8 d8Q c1R d7 Rc5 Qc8 Qg6 d8B Nc2 Bc1 Rg8 h8Q Ne1 Qa1 Ra7 Rc2 Rac7 Bd2 Rg7 e3 Rf7 Ne2 Rf5 Ng3 Rc3 Rc1 R7c5 Be2 Qe5 Bc4 Qh8 Rf1 Rb3 Nh1 Rc3 Kg1 f2+ Kh2 f3 Rd1 Bc6 Bg8 Bd5 Bf7 Rb3 Be8 Rcc3 Rg1 f1R Rc1 Rf2 Rf1 Rc5 Bc3 Rc2 Be5 f2 Bf4 R2c3 Rd1 Bc4 Rd7 Bd5 Ra7 Bg7 Ra8 Be5 Qf8 Bd6 Bg3+ Kg5 h4+ Kg4 Qh6 Nf4 h5 Nfd3 Bf4 Kf3 Kh3 g1B Bg5 Bgh2 Kh4 Kg2 Kg4 Qgg7 Qg6 Bhf4 h6 Kh2 h7 Bb8 Bh4 Bfd6 Qg5 Qf6 Qh6 Rf3 Ng8 Qfg7+ Bdg5 Qg6 Ne7 Rf5 Rg1 f1R Rg3 R1f2 Rf3 Rf8 Rf7 Rf3 Rg7 R8f6 Rf7 R6f5
1RnNQ1QN/6rp/R2rB2B/P1P1R2n/1b4r1/q1r4K/2kP2qN/r4bq1 w - - 0 1 illegal: No possible last move
1q3k2/b2rbPNQ/2R2bn1/1Qn3Pb/5Kb1/2RP2n1/r1qp1BB1/1Q2RN2 w - - 0 1 illegal: No proof kernel
krqB2r1/5P1b/1P1N1Q1K/3q1R2/1P5p/1n2NnqR/1qNq1R1Q/3B2br w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kf4 c5 Kg5 Kc7 g4 Kb7 b4 h5 d4 e5+ Kg6 e3 f4 e4 b6 h3 g5 c4 d6 h4 d7 a4 d5 h2 d6 c3 f5 a3 f6 e2 f7 e1Q Qd2 a2 Nh3 e3 Be2 c2 Bd1 e2 Nf2 Na6 Na3 Nf6 Ng4 Qg3 Ne3 e1Q Rb1 a1Q Rb2 Nc5 Qe2 Qe8 d8Q Qe6 d7 Ng4+ Qf6 Rb8 d8N+ Ka8 Nb7 Qd2 Nd6 Qed5 Rf1 h1R Qh2 Be6 Rf5 Rg8+ Kh5 Be7 g6 Nb3 g7 Ne5 Kh6 Nf3 Ra2 Bd7 Bb2 c1Q Nc2+ Ba4 Be5 Qab2 Bc3 Rgc8 g8R Re8 Ra3 Rec8 Rg4 Rg8 Rgf4 Bf8+ Qg7 Be7 Bf6 Bf8 Bd8 Be7 Nd4 Qc8 Ndc2 Bf6 Qg6 Bd4 Qf6 Bc5 Nec4 Bg1 N4e3 Nc1 Rd3 Nb3 Rc3 Nfd4 Rf2 Nf3 Rc4 Bb5 Rg4 Bd3 Rg6 Qh3 Rg3 Qg2 Rh3 Qg3 Rh5 Bg6 Rf5 Bh7
1n1bb1B1/rk2NP2/1P1rq1P1/BQq2R2/4N1r1/q1RpB1n1/Qr6/K2Q2r1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 b4 d5 c4 Kd7 Kc2 Kc7 Kb2 h5 g4 e5 f4 e4 g5 a4 b6+ Kb7 g6 a3+ Ka2 h3 f6 d3 b5 e3 f7 h4 c5 d2 f5 e2 f6 e1Q Nc3 d4 Nge2 h2 Nd5 h3 Ne7 Qd5+ Kb1 Nh6 Nc3 Ra7 Ne4 Nf5 Bc4 Bd7 Rf1 Ng3 Rf5 h1R Ra2 d3 Ka1 h2 Rc2 a2 Rc3 Be8 Bb3 Bg7 f8B Rg1 Bc4 Qd6 Bg8 h1R f7 Bf6 Bg7 R1h2 c6+ Ka8 c7 Kb7 Bh6 Qc5 Be3 R8h4 Ba3 Rg4 Bb4 Rf1 Ba5 Rff2 Qb1 d1R Qc1 Rf1 Qb1 Rb2 c8Q+ Ka8 Qe6 Kb7 Qb3 Rg1 Qa4 Rc1 Qd1 Rcc2 Nc6 Bd8 Ne7 Rb4 Qb3 Rb2 Qc2 Rd4 Qa4 Ka8 Qb3 Rd6 Qd5+ Nc6 b7+ Kb8 Nf2 Ne2 Bd2 Nc1 Qe6 Qe4 Be3 Qee5 Ne4 Ne2 Qb3 Ng3 Qa3 Qe6 Qb3 Qb6 Qd5 Kc7 b8Q+ Kd7 Qb3 Qc5 Qb6 Nb8 Qc4 Qc7 Qbc5 Qc6 b6 Qc8 Q5b5+ Qc6 Nd5 Kc8 Ne7+ Kb7 Qcb3 Rh2 Qc2 Qc5 Kb2 Re2 Kc1 a1Q+ Qcb1 Qa4 Qa2 Qaa3+ Kb1 Reg2 Ka1 Rb2
r1Q2qB1/4Rp2/5R1b/1R3Pr1/k3Kn1P/nNqrNPBQ/b3q2N/2q3q1 w - - 0 1 legal: proof: d4 h5 a4 c5 g4 b5 axb5 cxd4 e3 Qc7 f3 Qf4 exf4 hxg4 Kd2 e5 Kd3 g5 b4 d5 h4 Kd7 c4 a5 c5 a4 f5 g3 b6 Kc6 b7 Kb5 c6 a3 c7 a2 Ne2 g2 Qc2 g1R Qb2 g4 Qc2 g3 Rh2 g2 Ba3 Bh6 Ng3 Ne7 Nd2 Rd8 Nc4 Ng6 Ne3 Nc6 b8N Na5 Na6 Nc4 Nc5 Be6 Nb3 Ka4 c8Q Rd6 Rc1 a1Q b5 Rd8 Re1 Qc1 Bd6 Na3 b6 Rd7 b7 e4+ Ke2 Rd8 b8R d3+ Kf2 d4 Rb6 d2 Be5 Bd5 Rf6 d1Q Nc4 d3 Nbd2+ Kb5 Re2 Nf4 Ke3 Rh1 Kd4 e3 Bc7 g1Q Bh3 Nh5 Ngf1 Qg5 Bg4 Qg7 Bb8 Rg8 Bg3 Nf4 Qa2 Ka4 Bh5 Be6 Bg6 Qf8 Bh7 Qc3+ Ke4 Rg7 Bg8 Rg5 Rhg2 Qdc2 Nh2 Rd1 Re1 e2 Ke3 Ra1 Rb1 e1Q+ Re2 Qed1 Rb5 Qg1+ Ke4 Rd1 Re1 Q3b3 Ke5 Qc1 Re4 Qbb4 Ne3 Bc4 Qb2 Ba2 Nb3 Qbc4 Qg2 d2 Rd4 Qcb4 Rd7 Qbc3+ Ke4 Re1 Qb7 d1Q Qc8 Qe2 Re7 Rd1 Qh3 Rd3
7k/QbqN1p2/bb3r1N/n2PRbn1/K4P1N/4B3/RbqP1Q2/B2Q2rr w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 d5 cxd5 e4 h4 gxh4 e3 Bc5 Be2 Bf8 Bf3 exf3 g4 h5 b4 a5 b6 c5 g5 a4 e4 a3 e5 c4 e6 a2 g6 c3 b7 h3 b5 h4 g7 c2 b6 f2+ Ke2 f1B+ Ke3 h2 Kd4 h3 Kc3 Qc7+ Kb3 Nc6 b8B Bc5 e7 Ra6 b7 Nf6 g8N Na5+ Ka4 Ne4 Ba7 Rf6 b8Q Ng5 Na3 Bb6 Nf3 Ba6 Bb2 c1Q Nh6 Rg8 Re1 h1R Re5 h2 Nh4 Rgg6 Nc4 Rg7 Rb1 a1B Bc3 Bb2 Ra1 Qb1 Ra2 Qc2+ Kb4 Bd4 Nb6 Bg1 Nd7 Bb6 Qa8 Rg8 Qc6 Bcb7 Qa4 Rg1 Qa3 h1B Bd4 Be4 Qaf3 Rh8 Qf2 Nb3 Ka4 Bf5 Bc3 Ba5 Be3 Bb6 Bcd4 Na5+ Kb4 Bc1 Ba1 Bb2 Ng4 Rh5 Nh6 Qd3 Ka4 Qb1 Nf3 Rhh1 Nh4 Qbc2+ Kb4 Q7c6 Nc5 Ba8 Nb3 Q6c5+ Ka4 Kd7 e8Q+ Kd6 Qg8 B8b7 Qa8 Qc7 Qb8 Kd7 Qa7 Kd6 Kb4 Kd7 Nc5+ Kd8 Ne6+ Ke8 Nc5+ Kf8 Nd7+ Kg7 Re8 Qd3 Re5 Kh8 Ka4 Qdc2+
nNnRrR2/QPb1q2N/2K1b3/qB1n1q1P/3p2B1/3r1Q2/4nP2/2Bn1Nk1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 g5 h4 a5 c4 d5 h5 g3 f6 a4 f7 g2 b6 e5+ Kb5 g4 c5 d3 c6 d4 b7 g3 c7 d2 Nf3 g1N Qb3 d1N Rh3 g2 Qb2 a3 Qc3 a2 Be2 Be6 c8B Qg5 Kb6 Ra3 b5 Bd6 f8N Qf5 Bd2 Na6 b8Q Nc7 Qb4 Rd3 Qa5 Na8+ Kc6 Bc7 Bf1 Ne2 b6 g1N b7 Nf4 Qa3 Nge2 Nd7 Nd5 Bc1 Nec3 Qba7 Ne2 Nb8 Nge7+ Kc5 Re8 Nbd2+ Kf4 Ng5 e4 Nh7 e3 Rf3+ Kg4 Bd7 Nc8 Bb5 Kh4 Kc6 Kg4 Bh3+ Kh4 Rb1 a1Q Bg4 Qa2 Nf1 Qd2 Rf4 Qa5 Bf3+ Kh3 Bg4+ Kg2 Ra1 Kg1 Qb3 Qe5 Rf8 Qf5 Ra3 Ng3 Ra4 e2 Ra2 e1Q Ra3 Rd2 Qf3 Ne2 Re3 Rd3 Re5 N5e3 Rd5 Qeb4 Rd6 Nd5 Rd8 Qe7
3Kbb1k/PNQ2Pn1/b2nP3/RQ3p1N/1RqB4/1r4B1/3bB2R/4rrqb w - - 0 1 illegal: No proof kernel
2n1NB1q/PbPBb3/q2bb1rq/4QNk1/1p1Q1N2/r5n1/K1B1Pb2/1R4R1 w - - 0 1 illegal: No possible last move, all moves rejected
1K1R1q2/Rn1Br1r1/1kq2qN1/1B3n2/5pPQ/1nb1PNPq/4b2B/b4QR1 w - - 0 1 legal: proof: f4 b5 d4 g5 a4 c5 axb5 cxd4 h3 g4 hxg4 e5 Ra6 exf4 Ra2 Nf6 Ra1 Ng8 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 d5 c4 Kd7 b4 Kc7 e3 h4 g3 d3 c5 a4 c6 h3 Ra3 h2 Qe1 d4 Qf2 f3 Ne2 f4 Bg2 d2 Rg1 h1Q Nec3 d1Q Qf1 d3 Bd2 f2 Be1 Ra7 Nd2 Qa1 Nf3 Kb6 c7 Ba6 c8B d2 Bd7 Ne7 Kd6 Rg8 Bh3 d1Q+ Nd5+ Kb7 b6 Rg7 b5 Qdc1 Ra2 a3 Bg2 Qh3 Bh1 Ng8+ Ne7 Nc6 Bg2 Na5 Bh1 Kb8 b7 Nh6 Bg2 Qac3 Ra1 a2 Bh1 Nc4+ Kc6 Nf5 Ng6 Bb4 Bg2 Ra8 Bh1 Ka7 b8R Qdf6+ Kc7 Qf8 Rd8 Qcf6 Bg2 Bc3 Bh1 Bb7 b6+ Ka6 Bg2 Ra7 Kb8 Ba8 b7 Kb6 Nfe5 Ncd6 Bgc6 Qc2 Nf3 Qe4 Bb5 Qc6 Qe2 f1N Bf2 Nd2 Qf1 Ra6 Rh1 Ra5 Bg1 Nb3 Bh2 Ra4 Rg1 Re4 Re1 a1B Re2 Ree7 Ra2 Ne4 Ra4 Nec5 Ra7 Qcd6+ Kc8 Qd5 b8Q+ Nb7 Qd6+ Qc6+ Kb8 N7c5 Qe6 Bb7 Qg8 Ba6 Qh8 Nb7 Qh6 Q8f7 Qh4 Qf8 Ba4 Bd3 Bb5 Be2
1B3rb1/q1bqn1QN/1B6/2rr1q1Q/qNkbP1P1/1p3B1n/P4Q1R/2K1R3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 g4 Kd7 d4 Kd6 Kd2 c5 e4 b5 g6 f5 g7 h5 Be2 h4 Bf3 h3 Ba3 b3 Qe2 b2 Qf1 h2 Qh3 b4 Qg3 b3 Qh4 Nd7 Nh3 Ne5 Qf6+ Be6 Rg1 h1Q Nc3 b1R Nd1 Nf7 Rg2 Qd7 Bb4 Ne7 g8Q Bg7 Qg6 Rf8 Rf2 Rc1 Qh5 Qg1 Qh4 Rh5 Rg2 Ng5 Qh8 Bg8 Bc3 c4 Ndf2 Qa4 Bb2 Bf6 Qg7 c3+ Kd3 c2 Kd2 Be5 Nd3 Bf6 Nb4 Qf2+ Be2 f3 Rh2 f4 Rb1 Qg1 Ra1 f2 Bf3 f1Q Qf2 Qfb5 Rb1 Ne6 Ng5 Qd7 Nh7 Ng5 Ba1 Nh3 Bb2 Rf1 Re1 c1B+ Kd1 Bd2 Ba3 Bc3 Kc1 Be5 Bb2 Rc8 Ba1 Rc5 Bb2 Kc7 d6+ Kb6 d5 Kb5 Ba1 Bcd4+ Bc3 Qd8 d7 Bc7 d6 Kc4 Bb2 Qe8 d8Q Qed7 Qe8 Rhe5 Qh5 Red5 Bd1 f3 Ba3 Qe8 d7 Qc8 d8B Qcd7 Qfh4 f2 Bf3 Qg3 Qhf6 Qgd6 Bb2 Qb6 Bc3 Qba7 Qfh4 Bd6 Bb6 Bc7 Ba1 Rh1 Bc3 f1Q Qf2 Rg1 Bd2 Rg2 Bf4 Rg3 Bd1 Rf3 Bg3 Rf8 Bf3 Kc3 Bf4 Qfb5 Be5 Kc4 Bf4 Qf5 Bd6 Qbd7 Bg3 Bd8 Bb8 Bc7
1Q1B1RB1/3qq1b1/4n2B/3r1p1b/r1Q1n1kr/q4Rb1/N1PPKP2/4Nr1N w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 g4 Kd7 g5 Ke6 c6 Kf5 b6 h5 c7 e5 b7 a5 g6 a4 g7 a3 Bd3 a2 Ba6 e3 Bc4 e4 Bd3 h3 Bb2 h4 Bc4 h2 Bd5 h3 Bf6 Rh5 Bc3 Nf6 g8Q Bd6 Bb3 Bg3 Kf1 Nbd7 b8B Nf8 Bd5 Ra4 Qe1 Ne6 Nf3 Qd7 Qe2 Kf4 Qh8 Kg4 Qc4 Rf5 Rg1 h1R Ba5 h2 Ke2 Ba6 Re1 Rf1 c8N h1R Bd8 Rh4 Nc3 Bb7 Rab1 a1B Bf4 Ba8 Na2 Bb2 Bc6 Rd5 Nd6 Bd4 Rb3 Bb7 Kd1 Bc8 Bh6 e2+ Kc1 e3 Nf5 Ne4 Rc3 Bf4 Ng3 Bg7 Nh1 Bg3 Qf8 f5 Qfb4 Ba6 Qb8 Qf7 Be8 Qd7 Bf7 Bb7 Bg8 Bc6 Rd1 e1Q Rb3 Qe2 Re1 Qd3 Kd1 Qc3 Ke2 Qb2 Rb1 Qa3 Ne1 Bb5 Rc3 Bc6 Qd4 Ba8 Rc8 Bb7 Rb3 Bc6 Kd3 e2 Ke3 Ba8 Qc4 Rd4 Ng2 Nc3 Bh7 e1Q+ Qe2+ Bf3 Bdg5 Nc5 Rf8 Rd5 Bg8 Kh3 Be7 Bh5 Bd8 Qa1 Qeb5 Kg4 Ne1 N3e4 Ke2 Qe5 Qc4 Qee7 Rf3 Ne6
2B2n1Q/brbNR3/1Brk2B1/3q1p2/1NQ1n1P1/nR1q1NKP/1Pb5/2r3b1 w - - 0 1 illegal: No proof kernel
K2rqQN1/1B3RbQ/1N2bR2/3pbP2/n2B1rn1/3PN1nP/q3B1q1/1n2k3 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 f5 axb5 fxe4 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kd5 Kf4 c4 e5 b6 a5 h3 g5 b7 g3 d3+ e3 f3 a4 c6 a3 c5 g2 c7 Kg3 f4 Kf2 f5 a2 c6 e2 Nf3 e1Q Nfd2 g1Q Qb3 g4 Qa3 e4 Qc5+ e3 Nc3 g3 Ba3 g2 Bb2 Rh4 Nc4 Bg7 Qb4 e2 Ne3 Qb1 Qe7 e1N Na4 Rf4 Bd4 Nh6 Be2 Qe8 Nb6 Na6 b8Q Nf3 Qb7 d6 Qf8 Nc5 Rh2 Bd7 c8N Nd2 c7 Na4 Ne7 Ke1 c8B Ng4 Ng8 Qf1 Qc7 g1N Bb7 Rd8 Rg2 Bc8 Qd7 Be5 Kc6 d5 Rg3 Bg7 Kc7 Qg2 Kb8 Be5+ Ka8 Bg7 Bd1 Ne2 Qdf7 Be5 Qh7 Qb2 Rc1 a1B Rc7 Nb1 Rf7 Qa2 Rf6 Qf3 Rg2 Ng3 Rc2 Qh1 Be2 Qg2 Rcc6 Bc3 Rf7 Bg7 Rcf6 Bb2 Bc5 Be5 Bd4 Be6+
5nQ1/2qr3N/K1bb4/PB2q1q1/1qPN2p1/2PQB2k/R2n2R1/rnQRr3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d3 f5 exf5 hxg4 Be2 c5 Bf1 c4 dxc4 Rh7 Bf4 Rh4 Bc1 Rh8 Ke2 Kf7 Kd3 Kf6 a4 d5 f4 b5 h4 g5 c3 e5 h5 e4+ Kd4 e3 h6 g3 h7 e2 Nf3 e1Q Nh2 g2 Qb3 g1Q+ Be3 Nd7 Na3 Qc7 Nc2 Bd6 Nf3 Nf8 Qb1 b3 Qc1 b2 Ra2 b1Q Bh3 b4 a5 b3 Rh2 b2 Rg2 Bd7 Bg4 Ra7 Bh5 g4 Be8 Bc6 Ng5 Qh2 Bd7 Qhh4 Be8 Be5+ Kc5 d4 Bd7 d3 Nd4 d2 Be8 Qg7 Kb6 d1R Bd7 Rb7+ Ka6 Bd6 Be8 Qc7 Bd7 Kg7 f6+ Kh6 f5 Kh5 f7 Nf6 Be8 Ne4 f6 Nd2 Bd7 Ne6 f8R Qe2 f7 Re1 Rd8 Nf8 Rg1 Qeh2 Rg2 Qe5 Be8 Rb3 Rd7 Ra3 Rd8 Rg8 Rd7 Rg7 h8Q+ Rh7 Qg8 Rg7 Nh7 Qhg5 Rd8 Kh4 Bd7 Kh3 Be8 Ne6 f8Q Rd7 Qf5 Nf8 Qe4 Qc2 Qd3 b1N Rb2 Ra1 Ra2 Rf7 Rd7 Qb2 Rd8 Be4 Bb5 Qb4 Rd7 Rg7 Rf7 Bc6 Rf1 Rd7 Rfg1 Re2 Rd1 Re1
3K1n1B/2b1N2r/2R2rqN/P2Q2p1/6qQ/NRP3rQ/P3k3/1br1nqnB w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 g4 cxd4 b4 h5 bxa5 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 e5 h4 g5 f4 b4 h5 e4 c3 g3 h6 g2 h7 d3 Bb2 e3 Nf3 g1R Be2 b3 Qf1 d2 Ba3 d1Q+ Nfd2 b2 Bb5 e2 Qh3 e1N Bc5 Nc6 Na3 b1R Bd4+ Ne5 Nf1 Rc1 Ne3 Ra6 Rb1 Qe8 Bc6 Qg4 Rb3 Ne7+ Kd6 Qg6 Kc7 Rg3 Kd8 d6 Bg2 d5 Rh2 Rb6 Bh1 Ba6 Rf2 Bd3 Qh4 Bb1 Re2 Rg8 h8Q+ Rg7 Qh3 Rc6 Q8h4 Rh7 Reb2 Bg7 Rb6 Re6 Rc6 Bh8 Rb3 Bg7 Bc5 d4 Bd6 N5f3 Be5+ Kf7 f6 d3 f5 d2 Bd4 Ng1 Be5 d1Q+ Bd4 Kg8 f7+ Kh8 f8N Be5 f6 Bc7+ Kd7 Qdf3 f7+ Rf6+ Nf5 Qd3 Ke8 Qf1 Nh6 Kg7 Be5 Nf5 Kd7 Nd4+ Ke7 Ne6 Bd4 Qc2 Ng6 Nf8 Ke8 Qcd3 Ne7 Qa6 Nd5 Kg6 Be5 Ne6 f8Q Qb6 Qc5 Nf8 Nf7 Kf5 Ke7 Rg6 Bh8 Rf6 Ke8 Qba6 Ne7+ Kf4 Qd5 Ke3 Nh6 Qad3 Rd6 Ke2 Rc6 Bb8 Kd8 Qg6 Bg7 Bf4 Bh8 Bc7+
kb1bB1R1/1r1nQ1r1/B4q1P/RKQ5/n2p1r1Q/5P1b/N1P1nB2/qN3n2 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Ke2 a5 h4 e5 b4 d5 c6 g5 c7 Kd7 h5 a4 b6 Kc6 b5+ Kb7 h6 e3 Kd3 e2 f3 e1N+ Kc3 a3 Qd4 g3 Qf2 g2 Qe2 a2 Na3 e4 Be3 d4+ Kc4 g4 Rc1 a1Q Rb1 g3 Rh4 Rh7 Rb2 Bh3 Rf4 Na6 Ra2 Nc5 Rg4 Be7 Bf2 e3 Nb1 Nf6 Rg8 Nfd7 Ra5 Na4 c8B+ Kb8 b7 Ra7 Rg4 Rf7 Rg8 Bh4 Kb4 Rf4 Qc4 e2 Qc5 Qf6 Qe7 Nf8 Bd7 Bg5 Be8 Nd7 Kc4 Qh8 Qe3 Bd8 Qe7 Qf6 Kb4 Nd3+ Kc4 e1R Be2 Nb4 Bf1 Nd5 Ne2 Qa3 Nec3 Ne3+ Kd3 Qa1 Na2 Rg4 Be2 g1N Bf1 g2 Be2 Nf1 Kc4 Rg7 Kb4 Kc7 b6+ Kc6 Kc4 Qd6 Bd3 Re4 b8Q Ne2 b7 Qf6 Qg3 g1B b8Q Bh2 Qbd6+ Kb7 Qh4 Ka8 Qc5 Bb8 Kb4 Rf4 Ba6 Rc7 Kb5 Rb7+
4R2R/1qqq3n/5n1P/KPrB4/1P2rpNB/3rbQBk/1Q4br/N1n4R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Ke7 h4 Kf6 b4 g5 d4 a5 Kd2 c5 Kc3 a4 e5+ Kf5 h5 a3 d6 a2 e6 c4 e7 g3 e8Q g2 d5 g4 d7 f3 d6 f2 Bd2 g3 Bh6 Ra3+ Qb3 Kg4 Qe3 f5 Nd2 f4 Qe4 Qc7 d8R Nd7 Qb7 Ngf6 Re1 a1R Bd3 f1R Bg7 Nh7 Bf6 Rc1+ Kd4 c3 Ree8 c2 Bc4 Rfe1 Bh4 Ndf6 Nh3 g1Q+ Kc3 g2 d7 Re4 Bg3 Bc5 Bd5 Qd1 Nf2+ Kf5 Qc6 g1Q Ng4 Bb7 Rb8 Qh2 d8B Be3 Be7 Qg2 h6 Ra2 Qb2 Rf8 Rec8 Rd8 Nb3 Qgf3 Na1 Ba8 Bb3 Qdd7 Bd5 Kg5 Kb3 Bb7 Bh2 Kh4 Qcc3 Kh3 Qd3 Rg8 Re8 Rd1 Qdc3 Rg5 Ra8 Rd2 Bg3+ Rh2 Rac8 Ra6 Ra8 Rd6 Ka4 c1N Rh8 Rf5 Rae8 Rh5 Qd3 Ba8 Qf1+ Qg2 Qf3 Rf5 Bc4 Rc5 Bb3 Rd3 Bd5 Qb7 Bd8 Qc2+ Ka5 Qc3 Be7 Qe5 Bd8 Qec7+ Ka4 Re7 Bf7 Qe4 Qfe2 Nh5 Qd1 Re6 Bdh4 N5f6 Qde2 Qec6 Bg8 Q6b6 Qf1+ Bg2 Qf3 Re4 Bb3 Qbd6 Bd5 Qb7 Ka5 Q6c7+
bkN1N2B/b1n2rqR/r3b2P/1p3N1b/P7/1P1Q2qr/K1RQ1nQ1/5q1B w - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 Qc2 a3 Qb2 axb2 Kd1 Kd7 Kc2 b5 h4 g5 e4 c5 d4 Kc7 a4 f5 h6 g4 h7 f3 e5 c4 h5 f2 e6 g3 e7 f4 Nd2 b1B+ Kb2 f3 Ra2 g2 Ne4 Nf6 Ne2 g1Q Bg2 f1B Nd6 f2 Ng3 Ra6 Ngf5 Be6 Nc8 Ne4 e8N+ Kb7 d6 c3+ Ka3 c2 d5 Qd7 Bb2 c1R Rh3 Bfd3 Bh1 f1Q Be5 Qg4 Rc2 Qg3 Kb2 Qf7 d7 Be2 d8Q Bc5 d6 Ba7 d7 Qfg7 Rh2 Rf8 h8Q Rf7 Qg8 Rd1 Qa5 Rd3 d8Q Rf3 Qad2 Nf2 Q8d3 Ka8 Rg2 Re3 h6 Bh5 Rc7 Bc2 Ka3 Bcd1 Re7 Bdf3 Ka2 Qf6 Qb2 Qg4 Qd7 Ra5 Bd4 Rf8 Neg7 Na6 Qd8 Nh3 Rf7 Kb8 Rh2 Nc7 Ne8 Ba8 Rh7 Rf7 Qd7 Qfg5 Bh8 Ra6 Qd3 Q4f4 Rd2 Nf2 Qgg7 Qf6 Qg2 Qg7 Qbc3 Qfg4 Rc2 Rh3 Qcd2 Qg3
Br1r2Q1/1K2B1n1/2nN2p1/2PBrb1k/3P2R1/3bbqRN/2Q2P1q/Q2q1q2 w - - 0 1 illegal: No proof kernel
bkq2n2/3Q1r2/1B1p2b1/2b1Q3/2qnBP2/P2rN1Pr/r1BNRq2/4KRQ1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 b5 f4 e5 g6 h5 c5 b3 f6 h4 g3 e4 c6 e3 g7 b2 c7 h3 Qb3 d3 Kd1 e2+ Kd2 b4 Qc4 b3 Qc2 h2 Na3 b1R Qc6 b2 Qf3 Rh3 Qe3+ Ne7 g8B Nc6 Qf3 Ng6 Bb3 Bb7 c8Q Ra7 Qg2 Ba8 Qb8 Qc8 f7+ Kd8 Nc4 Rb7 Qa7 Kc7 a3 Be7 Qe3 Kb8 Ra2 Ra1 f8Q b1B Qe8 Nf8 Nf3 Bc2 Rb2 Ra2 Qe5+ Bd6 Rg1 h1Q Qf2 Qh2 Bg2 e1R Rh1 Re3 Rf1 Bb1 Kd1 d2 Qg1 Bg6 Rc2 Rd3 Bb2 Ra7 Bd4 Rc7 Bb6 Nd4 Ne3 Bc5 Ba4 d6 Q8e6 Rf7 Qd7 Nf5 Ke2 d1Q+ Kf2 Qb7 Re2 Nd4 Nd2 Qb3 Ke1 Qc4 Be4 Qc8 Bc2 Qf2+
2B1bN1r/4Nr2/1qP1bb2/3n4/N2nk3/Q2pnbPP/QqRRQ2K/1r4B1 w - - 0 1 illegal: No proof kernel
Qr2b3/b2QR3/k1pnKn2/1n1N2rB/2BB1N2/1P1PPR2/2R1b1r1/1q2q2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 Ke5 f5 g4 c6 g5 Kc7 e3 Kb6 g6 h3 d3 f3 b3 h2 d6 f4 g7 a4 d7 a3 Ra2 h4 Kf5 h3 Ne2 f2 Rg1 h1R Ra1 a2 Bb2 h2 Nd4 f3 Nc2 Rh5+ Ke6 Na6 Rg4 Rg5 Be2 f1Q Rc4 f2 Bd4+ Bc5 Ne1 Rb8 Bh5 Nf6 g8B Rg2 Nc3 Nc7+ Kf5 Rhg1 Qg4 Nce8 Ke6 h1R Nd5+ Ka5 b6 Ka6 b7 Nd6 Rc3 Ba7 Rc2 Qa5 Qh3 Rg5 Ng2 Qae1 Ngf4 R1g2 Rd1 a1N Qg4 Ra8 b8R Qg1 Qf5 f1B Rb7 Rb8 Rdd2 Qb1 Rf2 Be2 Rf3 Qge1 Rc7 Bb7 d8Q Bc8+ Ke5 Be6 Re7 Bd7 Bgf7 Be8 Ke6 Rb4 Qa8 Rb8 Rc1 Nc2 Qh3 Na3 Rc2 Nab5 Bg8 Bg6 Qf5 Nfe8 Qf7 Nf6 Qe8 R2g3 Qd7 Rg2 Nc3 Bf5+ Ke5 Rh3 Bc4 Rh1 Ncd5 Bg6+ Ke6 Be8
B1bR1r2/2b4R/1PQ2NqQ/n2b4/qN2bB2/4PN1R/1nq1Pnpr/5K1k w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 d5 b5 axb5 e4 d6 e3 fxe3 cxd6 Ra4 d5 Ra1 d4 c4 Ke7 b4 Ke6 h4 Kf5 b6 d5 b7 a5 c5 g5 h5 d3 h6 d4 h7 a4 c6 a3 b5 d2+ Kf2 g3+ Kg2 Kg4 b6 f5 c7 d3 Rh3 a2 Qc2 d1B Qc5 d2 Qd6 f4 Qe7 f3+ Kh1 f2 Kg2 Nh6 Qc5 Nc6 b8R Bd6 Qc2 Na5 Qd3 Bc2 Qb5 d1N Qb2 Be4+ Nf3 Qg8 Qe5 Qb3 Ba3 Qc2 Qd4 Nb2 Nc3 Bf4 Rd1 a1Q Bd6 Qaa4 Rb7 Rf8 h8Q Bd5 Kh1 Be4 Bg2 f1B Kg1 Be5 Bh1 g2 Kf2 g1Q+ Ke1 Rb8 Nd5 Bf4 Qc3 Qg2 Rh4+ Kg3 Nb4 Ng4 Qh6 Nf2 Qc6 g4 Be5 Qg1 Rd8 Bd5 Nd2 Bce6 c8N Rf5 Rh5 Bf3 Qd5 Bg8 Rh4 Rh5 Rd6 B3g2 Ne7 Rf8 Qb5 Be6 Ra7 Bc8 Ng8 Ba8 Bc6 Bab7 Rd5 Kg2 Nf6 Bh2 Bg3 Kh1 Rd8+ Qg2 Qc5 Qge4 Qb5 Bg2 Bb8 Bf3 Kf1 Qg6 Qd5 Be4 Nf3 Ba8 Rh7 Bab7 Be8 Bc6 Qd6 Bcd5 Bc6 Bd7 Ba8 Bc8 Rh3 Rh4 Rg3 Rh5 Qc6 Rh3 Rg2 Bd6 Bc7 Rh2 Rg3 Be5 Rh3 g3 Bd6 Bf4 Bc5 Bb8 Bd6 Bc7 Bf4 g2+
1qn1bK1B/Q2B2r1/1P6/1Q2qRQP/1b1b1p2/1n1Rnq1P/6Nk/n2BN2r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 b4 g5 c4 f5 c5 a5 c6 d5 b6 d3 b7 d2 c7 g4 b5 d4 b6 d3 Qe1+ g3 Ra4 d1Q Nc3 d2 Bh3 Bb4 Ra3 a4 Bb2 f3 Nd5 f2 Ne3 f1N Bg4 f4 Rd3 Nd7+ Ke6 a3 Kf7 a2 b8Q a1N Qa7 Ne7 h3 Rg8 Bh8 Nc5 Rh2 Qa4 Rg2 Bd7 c8B d1Q Qc3 Qe1 Qe5 Qad1 Qg7 Bb5 Bcd7 Nc8 Qf6+ Rg5 Bf3 Qc7 Kf8 Qc3 Qe5 Rg7 Qf5 Ncb3+ Qc5 Q3e5 Bfg4 Kg5 Nf3+ Kh6 Ne1 Kg5 Rg1 Qb8 N3g2 Ba4 e4 Ne3 Bf3 Qe2 Bfg4 Qf1 Bd1 Qf3 Bf5 Be8 Bd7 Qd5 e5 Qd4 e6+ Qde5 Nh4 g2 e7 Qg3 Rf1 g1B Nhg2 Qg4 Rf2 Qf3 Rc2 Bf2 Qac7 Ra2 Qa7 Bg1 Rc4 Rf2 Rcd4 Rf1 Rd5 Bf2 Qca5 Rh1 Rb5 Nec2 Rbd5 Bd4 Rc5 Ne3 Qb5 Bf7 e8Q Bg6 Qe6 Be8 Qd5 Ng4 Ne3 Kh4 N3g2+ Kg3 Qg8 Ne3 Qd5 Qee4 Qf5 Kh2 Qg5 Re7 Rf5 Qee5 Qh4 Rg7+ Qe7 Bd2 Qg5 Bb4+
3Q1RBR/2n1nqr1/PKNrq3/1Q1n2P1/1b4rq/k1P5/1p1RQB2/3qNb2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 b5 Kd3 h5 g4 e5 a4 Ke7 f4 Kd6 g6 Kc5 a5 d5 g7 b3 f6 Kb4 f5 e4+ Ke2 h4 f7 h3 g5 d3+ Ke3 d4+ Kf4 d2 Ke5 h2 f6 d3 Qe2 d1R Be3 b2 Ra2 d2 Bf4 e3 Qh5 e2 Na3 e1Q+ Ne2 b1N Be3 Nc3 Bf2 Qe8+ Kd4 Ne7 g8Q Ncd5 c3+ Kb3 Kc5 b4 Bg2 Ba6 Nc2 Ra7 Qgh7 Rg8 Qd3 Rg7 Qb5 Rd7 Be4 Rd6 Bh7 Ra1 Qg4 d1Q Bg8 Qd7 Qf3 Qe6 Qfd3 Qf1 Ne1 Rc1 Rc2 Ka3 Nd4 b3 Rd2 b2 Nc6 Ra1 Qe2 Rb1 Rg1 h1Q Rg2 Qh4 Rh2 Nc7 Rh3 Ned5 Rh1 Be7 f8Q Rc1 f7 Rc2 Na7 Nc6 Qd8 Bf8 Rh2 Nce7 Nc6 Rc1 Qb7 Bd3 a6 Bc4 Qb5 Rc2 Rd3 Rd2 Rdh3 Rd4 Rd3 Rg4 Rd2 Qg3 Rh8 Qh4 Bd4 Qff5 Bf2 Bd3 Qe4 Bf1 Qe5 Nc8 Qee2 Be7 f8R Qf4 Qf3 Qff7 Qfe2 Qg3 Qed3 Qh4 Qe4 Rd7+ Kd4 Rg1 Qg4 Bb4 Qe4 Nce7 Qg4 Ba5 Kc5 Rd6 Qge2 Rg4 Rh7 Ne3 Rh8 Bb4+ Kb6 N3d5+
1k1q1B2/q6p/1N1PbKPP/1QN1n3/2rBNnq1/1Q5r/rR1bq2R/5bB1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 g5 e3 g4 Be2 Be7 Bf3 gxf3 Qc2 Bd6 Qd1 Bf8 Kf2 Kd7 g4 f5 h4 a5 d4 c5 b4 Kc7 d6+ Kb7 g5 c4 d5 a4 b6 c3 e4 c2 d7 a3 d6 a2 g6 Qg5 d8B Qg4 e5 Ne7 b5 Nbc6 e6 Ne5 h5 Nf7 h6 Rb8 Ne2 Qh3 Na3 Qg4 Bb2 c1R Rb1 a1Q Qb3 Rc4 Ng3 Ne5 Bd4 Bg7 Rb2 Nd5 e7 Be6 e8Q Ra8 Be7 Rf8 Qd7+ Kb8 b7 Bf6 Rh5 Bg5 Rh2 Rfc8 Ne4 Re8 Nb1 Ra2 Bf8 Rec8 Nc5 Rc6 Ke1 f2+ Kd2 f1B Nc3 f3+ Kc2 f4 Kd2 f2 N3e4 Ka7 b8B+ Ka8 b6 f3+ Qe3 Nf4 Qb3 Rc7 Ke3 Rca7 Bc7 R7a3 b7+ Ka7 Bb6+ Kb8 Re2 Bg2 Qb5 f1Q Rb2 f2 Ba5 Qh1 Be1 f1Q Bf2 Qfd1 Bg1 Bf1 Be7 Ka7 b8N Qhg2 Bf8 Qdc2 Nd2 Qa8 Nbd7 Qd8 Nb6 Qcd1 Ke4 Kb8 Qc2 Rh3 Qcb3 Bf7 Qd3 Qge2+ Kf5 Qa4 Qg3 Q1d1 Nde4 Qa7 Qa3 Qh5 Qba6 Ng2 Bg7 Qde2 Qb3 Qh4 Bf8 Bd2 Qab5 Nf4 Be7 Qhg4+ Kf6 Qe8 Bf8 Be6 Nca4 Qed7 Nac5 Qd8+
bRq3NB/1qbrP1Q1/4q1rN/1n4Q1/2K3P1/b1R1Pp2/r1n1B1R1/2krN3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kd2 Ke7 Kd3 Ke6 c4 Kf5 b4 d5 c5 a5 c6 h5 c7 h3 b6 a4 e6 a3 e3 h4 g3 a2 b5 h2 b7 h3 b6 Ne7 Qe2 Na6 b8Q Nc6 b7 Ncb4+ Kd2 Ke4 g4 f5 Nf3 f4 Qe1 d3 Kc3 d4+ Kb3 d2 Bb2 d1R Bc1 d3 Qg3 d2 Bc4 Rg8 Bb5 Rg6 Bb2 Nc2 Nd4 Ba3 Rg1 h1Q Kc4 h2 Qa7 f3 b8R Bb7 c8N Nc7 Ba6 Nb5 Ne7 Qc8+ Qc7 Qg2 Qac5 h1Q Qg5 Qh7 Ng8 Bc6 Qa7 Qhb7 Nf5 Qg3 e7 Qd6 Rg2 Qf6 Nfh6 Qe5 Kb3 Kd3 Qc5 Qe4 Bh8 Qef5 Qe5 Qfe6+ Ka4 Ra7 Qg7 Ra8 Nc3 Be4 Rc1 a1B Nd5 Be5 Nb4+ Kc3 Nd3 Bd5 Ne1 Kb2 Ra1 Ra7 Ra2+ Kc1 Rb2 Bc7 Rb3 Qbb6 Rc3 Ba8 Qd5 Qbc6 Kb3 Q6b7 Kc4 Kb2 Nf5 Ra1 Nfh6 d1R Qf7 Kc1 Qg7 Bb2 Kc5 Ra2 Qg5 Nd4 Be2 Nb5 Qd5 Ba3+ Kc4 Ra6 Rg3 Rd6 Rg2 Qe5 Qc5 Rd7 Qd5 Qf6 Qg5 Qe6+
4rK1N/2QBP3/4Qn1R/Nbb1nr1p/Pr2b1R1/2q3n1/Q2B1Prk/2q2R2 w - - 0 1 illegal: No possible last move, all moves rejected
2n1K2Q/1b1P3R/4q3/p3RqB1/k2N1b1N/1n2rQRr/P3BPq1/q2b1B1n w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 d4 b5 g4 h5 d6 Kc6 d7 a5 g5 h3 g6 b4 g7 h2 Qe2 h4 Qe1 h3 Ba3 b3 Bb2 Qg5+ Ke2 Kb5 d8Q e3 Kd3 e2 Ke4 Bd6 Kd5 Qf5 c6 Na6 c7 Ka4 Kc6 e4 d5 e3 Na3 Nc5 Nc2 Bf4 Bf6 b2 d6 b1B Nf3 Nb3 Qc3 e1Q Bg5 e2 Ncd4 Bc2 Nh4 Bd1 Qf3 Rb8 d7 Bb7+ Kb6 Rh7 c8B Ne7 g8R Qc3 Rc1 Qa1 Rc5 e1Q Re5 Qe2 Kc7 Qee4 Rg1 h1N Rh8 h2 Rg3 Qd5 Qg8 Qde6 Kd8 Rh6 Rh7 Ra8 Ng6 Rh3 Nh4 Ra6 Qe8 Rc6 Qh8 Rc3 Ke8 Re3 Rf7 Bd5 Bca6 Nc8+ Re7 Be4 Bae2 Bb7 Rg1 Ng3 Rg2 h1Q Rg1 Qh2 Rg2 Nh1 Rg3 Qd6 Rf7 Qg2 Rh7 Qde6+
bnq1QBBn/2qp1r1N/n2n3P/4bP1r/r2RbQ2/1N1P3k/2Q1N3/K3R3 w - - 0 1 legal: proof: e4 b5 a4 h5 g4 f5 exf5 hxg4 axb5 c5 b4 cxb4 c4 Kf7 f4 Kf6 h4 g5 c5 a5 c6 e5 c7 b3 b6 g3 h5 g2 b7 e4 Nf3 g1N Bg2 a4 Nc3 a3 Nh4 b2 Qb3 b1B Kd1 g4 Qc4 a2 Nf3 g3 Qb5 e3 Ne5 e2+ Ke1 Bg7 Qb2 Ra4 Nf3 Nh6 Rh4 Nh3 Qc2 Ng5 Ba3 Nhf7 Nd4 Ne4 Nb3 Ned6 Bd5 g2 h6 Rh7 Bc4 Nh8 Bg8 Qe8 Qd1 Bd3 Qc2 Be4 d3 g1R+ Kd2 e1N Kc1 Rg5 Kb2 Rh5 Ne2 Qd8 Qc4 Nc2 Re1 Nb4 Qc2 N4a6 Ka1 Bf8 Rg4 Rf7 Bb4 Bg7 Bc5 Nc6 b8Q Bb7 c8Q Ba8 Qb4 Qc7 Qbd2 Ke7+ f6+ Ke6 Qe8+ Kf5 Qe3 Ncb8 Qd4 Re7 f7 Be5 f8N Rf7 Nh7 Qc8 Rg2 Qc7 Rf2 Kg4 f5 Kh3 Rf4 Nc4 Bf8 Nd6 Qdc3 Bec6 Rd4 Be4 Q2d2 Qc8 Qf4 Qc7 Kb2 a1Q+ Kc2 Qa3 Kb1 Qb4 Qc2 Qbb7 Kb2 Qbc8 Kb1 Rc4 Ka1 Ra4+
3B1Q2/2P1Qb2/R4nr1/6b1/q2k2Pp/rR2qK1P/bbBB1nNR/3rN2n w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 d4 Ke6 c4 h5 g4 f5 c6 a5 c7 f3 d5+ Ke5 c5 e3+ Kg3 a4 h3 a3 d6 f2 d7 h4+ Kf3 e2 b6 e1R c6 f4 b7 a2 Bd2 Ra3+ Bd3 f1B Qc1 Bh6 Nc3 Qe8 d8B Rd1 Na4 Na6 b8R Nb4 Qc2 Be6 c8Q Nf6 c7 Rg8 Rb1 a1B Qc1 Bf7 Nb2 Qa4 Rb7 Kd4 Qc2 e5 Qb8 e4+ Kf2 f3 Qb3 Rg6 Rh2 Bg5 Nc4 Bb2 Ne3 Be2 Bc2 Bec4 Ng2 Bce6 Be1 Bc4 Ra7 Nd3+ Kf1 f2 Ke2 f1N Ra6 e3 Q3b4 Ng3+ Kf3 e2 Bd2 e1Q Qe7 Nh1 Qbb4 Bc1 Rb3 Ndf2 Qf8 Qe6 Qbe7 Qb6 Ne1 Bb2 Ne2+ Kd5 Nf4+ Kd4 Nfg2 Qc5 Rc3 Ba2 Re3 Qe5 Rb3 Qe3+
5r1B/2P3R1/k2rqq1R/b1bbnPB1/7p/2nbnQr1/4B2P/1Q2NNQK w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 g4 fxg4 a4 e5 axb5 exd4 e4 h5 c4 a5 f4 d5 Kf2 Kd7 Kg2 Kc7 c6 Kb6 c7 g5 e5 g3 f5 h4 e6 g4 e7 a4 e8Q a3 Qde2 d3 Bd2 a2 Qf3 d4 Qfe3 Qd5+ Nf3 Nh6 Q3e6+ Nc6 Na3 Bb7 c8Q Ra6 Q6f7 Qe6 Bc3 d2 Be2 d1N Qg8 d3 Qb8 d2 Nc2 Ne5 Qh5 Bb4 Ne1 Ba5 Rb1 a1Q Rg1 Qb2 Kh1 Qa1 Bb2 Nc3 Rg2 d1B Nd2 Bb3 Nf1 Bc2 Bc1 Be4 Bg5 Bd3 Qgg6 Rf8 Qg8 Kc5 b6 Bd5 b7 Rd6 Rb6 Qb2 Rc6+ Kb4 c5 Kb5 Rc8 Ka6 c6 Qb6 Qgg6 Qd8 Rc7 Qdf6 Rh7 Nhf7 Rh6 Nc4 Qd8 Nfe5 b8B Ne3 c7 Qg7 Ba7 Qh8 Qb8 Qhf6 Qb1 Rfd8 Kg1 Rf8 Rf2 g2 Rf4 Bb5 Rb4 Bbc4 Bd4 Bd3 Rb8 Rf7 Rg8 Rf8 Kf2 g1R Rg7 Na2 Ba1 Rg3 Bb2 Nc3 Ba1 Rh3 Kg1 g3 Qg4 g2 Qf3 Nc2 Kf2 g1B+ Kg2 Bgb6 Kh1 Bc5 Bd2 Rc6 Qg1 Rd6 Bg5 Rg3 Rh8 Qff7 Ne3 Ng4 Nf1 Nb5 Rgg8 Nce3 Rh6 Qfg6 Be5 Nc3 Bh8 Ne5 Rg7 Qgf6
3RR1N1/2Pn2q1/n1r1Prb1/q5kB/1n1BQ2R/pB2b3/qrQ3NP/5r1K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg2 d5 b4 a5 c4 f5 e4 g5 b6 g3 e6 Kf6 b7 a4 e7 g4 e8B a3 c5 f4 c6 d3 b5 d4 e5+ Kg5 b6 d2 Qa4 d1R Bb5 d3 Ra2 d2 Qa6 Bc5 Bc4 Bf5 e6 Rf1 Bb3 d1N Qc4 Nf2 Ne2 Nd3 Nd2 Na6 b8R Be3 b7 Nf6 Bh5 Bg6 Rb2 Ndb4 Qe4 Qa5 c7 Nd7 Re8 Rh6 b8Q Rf2+ Kg1 f3 Nf4 g2 Rc2 Ra7 Rc4 Rb7 Qc2 Rb6 Bb2 Rc6 Ba1 Bf5 Qb7 Rf6 Bd4 Bg6 Qd1 Kf5 Ne4 Rb2+ Nf2 Kg5 Qc2 Rd6 Qbe4 Rc6 Nd5 Bc1 Nd1 Bd2 Kf2 Be3+ Kg3 f2 Ne7 f1R Ng8 R1f5 Re1 Rf1 Re2 g1Q+ Rg2 Qh1 Rd2 R1f4 Rd3 Qe1+ Kg2 Qf2+ Kh1 g3 Qc1 Qc2 Rd2 Qb1 Qcc2 Qa2 Rd3 Bd2 Ne3 Rf2 Ng2 Rf1+ Bg1 Be3 Rd6 Nf8 Rdd8 Nd7 Rd4 Bd2 Qd1 Bf7 Qee2 Kf5 Rh4 Bf4 Ne1 Bc1 Kg2 Bh6 Bd4 Bd2 Kh3 g2 Qe3 g1Q Qc2+ Nd3 Qe2 Qg7 Qe4+ Kg5 Kg3 Be3 Kg2 Bg1 Kh1 Bg6 Ng2 Ndb4 Qd1 Nb6 Qde2 Nd7 Q2c2 Be3#
1Q5B/K1P1RN2/1pbn1P2/q3Bk2/1b1qqn2/2rnr3/1RbNQPB1/b5Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 e5 Kb5 g5 a4 d5 h4 b3 c4 g4 c5 b2 a5 e4 c6 d3 h6 d4 h5 d2 a6 d3 a7 e3 h7 g3 h6 g2 Na3 b1Q+ Qb3 d1B Ne2 g1N Ra2 d2 Rh3 Na6 Ng3 e2 Bg2 e1B Rb2 Ne2 Qc2 Nc5 Nf1 Ne7 Re3 Bd7 Nc4 Bg7 Nd6 Nc8 Re7 Re8 h8B Nd3 h7 Nef4 Nf7 b6 Ka6 Nd6 c7 Bc6 Qc4 Bc2 Qa2 d1Q Nd2 Qh5 Qa1 Rc8 a8Q Qd7 Qa7 Rcd8 Qb8 Qg5 Ka7 Qh5 Nf3 Bb4 Be3 Qg5 Nd2 Qe1 Bc5 Qe4 Qg1 Qh5 Ne5 Kg5 Nf7+ Kg4 Bd4 Be5 f6 Kf5 Bc5 Bec3 Bd4 Qg5 Rb3 Ba1 Be5 Qh5 Re6 Re7 Rb2 Rg8 Qe8 Rg3 Qb8 Re8 Re7 Re3 Bg7 Rg8 h8Q Qg5 Qh5 Rh8 Qhd1 Rhh3 Qf3 Nb7 Nb3 Qdd4 Qg3 Re2 Na5 Ndc5 Qf3 Nd6 Nb3 Kg6 Nd2 Re1 Qg4 Rc3 Bh8 Ncd3 Qd1 Re3 Qe2 Nb7 Bd6 Qgd5 Qa8 Kf5 Be5 Nd6 Qb8 Qa5#
1q4n1/1QP4p/2b2nNN/1q4R1/3n1P1r/kPB1qR1r/5rBN/n1bBQ2K w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 Kd7 b6 Kd6 g5 Kc5 f3 Kb4 Kf2 a5 Kg2 e5 f6 d3 b3 d4 b7 h3+ Kh2 a4 c5 d2 c6 a3 g6 d3 c7 e4 g7 a2 f7 e3 Na3 e2 Rb1 a1N Bg2 e1Q Nb5 Ra4 Nd6 Qe3 Qf1 d1N Qe1+ d2 Bb2 Nd7 b8Q+ Bb7 Bc3+ Ka3 Nf5 Ndf6 Nh6 Bc6 Qb7 Rh4 f4 Qb8 Nf3 Bd6 Bd4 Nc3 f8N d1Q Rg1 Qdd3 Ng6 Qb5 Kh1 Ne2 Bc3 Nd4 Nh2 Bf8 Rb2 Bb4 Rf2 Ba5 N2g4 h2 Rf3 Bb6 Bf1 Ba7 Be2 Bc5 Bd1 Bd6 Kg2 h1R Nh2 Be5 Nf1 R1h3 Nh2 Bd6 Kh1 Bb4 Bd2 Bc3 Rg5 Bb2 Bc3 Bc1 Qd2 Ne7 Qe1 Rd8 g8B Rd5 Bf7 Neg8 Be6 Rc5 Bc4 Rd5 Bf1 Rc5 Bg2 Rc4 Bd2 Rc2 Bc3 Rf2
6bN/1RPP4/2Q3q1/2nPN1qr/3b3Q/n2Q1rb1/1pBR2q1/Bqk1KB1r w - - 0 1 illegal: No proof kernel
1n1br3/qP1R1N2/qBr3r1/n4P1Q/1RQK1b1N/pPn2N2/1kB5/4Rb1r w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 f4 Kc5 g4 Kb4 d4 c5 d6 a5 f5 e5 d5 h5 d7 c4 g5 a4 d6 h3 b6 h4 b3 h2 g6 a3 g7 c3 Bb2 c2 Qc1 h3 Ra2 Be7 Ne2 Rh6 Nec3 Ba6 b7 Qb6+ Kd2 e3+ Ke1 e4 d8R e2 Kd2 e1R d7 Qa7 Qd1 c1B+ Kc2 e3 Ne4 e2 Ned2 Rg6 Nf3 Bf4 Nh4 Nf6 g8Q Ne4 Bg2 Nc3 Nd2 Rf1 Re8 Bd8 Ndf3 e1Q Re7 Qe6 Ra1 Re1 Bc1 Bf1 Be3 Qea6 Bb6 Ree6 Qe2 Rd6 Re1 Rc6 Rg1 h1R Qe8 Rg4 Qh5 h2 Rh7 Rgg6 Re7 Nb5+ Kd3 Nd6+ Kd4 Nc4 Re4 Na5 Rd1 Be7 d8N Beg5 Nf7 Bd8 Kd5+ Kc3 Qc4+ Kb2 Kd4 Be2 Rge1 Bf1 Qb4 Rg1 Qa4 h1N Qc4 Nf2 Bh1 Bh3 Bg2 Rh1 Bf1 Bg2 Bd3 Bh3 Bc2 Bf1 Re5 Ne4 Rb5 Nc3 Rb4 Nd7 Re7 Rac8 Rde1 Nb8 Rc7 Be7 Rd7 Re8 Ra4 Beg5 Rb4 Bd8
5n1B/1P1R1Nnq/rpQ1P2q/2rPQ1Nn/1RqK2Qb/1B1Bn3/3r4/k2b4 w - - 0 1 illegal: No proof kernel
1KN3nB/1p2Rqq1/2rr2bP/1r2bB1P/3P2n1/1n1Q3R/1q5Q/2Bnk1NN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 g5 h4 c5 a4 f5 h6 f3 d6 f2 h5 f4 a5 f3 a6 b3 d7 b2 a7 g4 Rh2 g3 Bf4 g2 Bg3 Nc6+ Ke6 Bd6 Nd2+ Kc3 e4 b1R e5 c4 Rh1 Rb5 Bd3 f1N Bf4 f2 Bf5 Qb6 Rh3+ Ne3 Nf1 Bc7 Ng3 f1Q Qf3 Kd2 Nh1 c3 Re1 c2 Qg3 c1N Qh2 Rb8 a8Q Nb3 Qa3 Ra8 Bg5 Ra6 Bf6 Rh7 Bh8 Nd1 Ree3 Rg7 Re4 Rg3 Re1 Rc3 Re4 Bd8 Kd6 Bf6 d8B Qc4 Ree3 Qf7 e6 Bd7 e7 Be8 Reg3 Ke1 Rg7 Qf8 Rh7 Bg6 Kd7 Qe8+ Kc8 Ne5+ Kb8 Qf7 e8N Rc6 Nd6 Ng4 Nc8 Be5+ Bc7 Qc4 Re7 Qf7 Qa2 Rd6 Qc2 Rc6 Qd3 Rd6 Ne2 g1Q Bd8 Qg2 Ng1 Qb2 Bc7 Qc5 Bd8 Rac6 Ba5+ Qcc3 Bb4 Qg7 Ba3 Qf2 Bc1 Qcb2 Be6 Qff6 Bf5 Qff7
2qN1K2/1pbP3r/1b1N1P2/2r2bQn/2QR2BB/2P4q/3rR2Q/kqBb1n2 w - - 0 1 illegal: No proof kernel
b1Q4R/PQ1K1R1r/qr1nn1k1/2qPP3/Nq1B4/5p1b/Bn1BNb2/3qR3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 b5 Kf3 g5 Ke4 f5+ Ke5 Kf7 a4 c5 e4 c4 d4 b3 h4 f3 a5 b4 h6 f2 a6 g4 a7 b2 h5 b3 h7 f4 d6 c3 d7 g3 h6 c2 Be2 f1Q Ba6 f3 Nd2 b1Q Qe2 b2 Rh4 g2 Bb5 Na6 Rh2 Bc5 Nb3 Kg6 Ke6 Nf6 Bc4 Ne8 Bd2 c1N e5 Bb6 Nc5 Nd6 Na4 Rb8 Ba2 Nd3 Qf2 Qbe1 Ne2 g1Q Rh4 b1B Rf4 Bc5 Rf7 Rb6 Qe3 Nb2 Qb3 Qdh4 d5 Qb4 Ke7 Bf2 d8B Bb7 Kd7 Nc7 B8g5 Ne6 Bge3 Be4 Bd4 Bf5 Rb1 Qc1 Ra1 Qcc5 Re1 Qbc3 Qb5 Ba8 Qc6 Bh3 Qb7 Rf8 h8Q Q3b4 h7 Qh1 Re7 Rf7 Qhc8 Qhg1 h8R Rh7 Rf7 Qh1 Nec3 Qa6 Ne2 Qf1 Rb1 Qd1 Rc1 Qdc2 Re1 Qd1
4Kq1k/Prr1N3/B1n3p1/2P1qn2/4r2b/1B3RPR/n3Q1b1/1BR1qQNq w - - 0 1 illegal: No extended proof kernel
6R1/PK3Nr1/1QPbRQ2/1nBPB3/2br1qr1/1nqq4/5rp1/1kn2BNQ w - - 0 1 illegal: No proof kernel
3nN2N/p1B1R3/n1PQnR2/P2b1Pn1/q1rNR1b1/Q5br/r2BK2q/6k1 w - - 0 1 illegal: No possible last move
4nBQ1/pRr2N1P/k1b1n2R/Bq1q1rR1/Q1n5/N1P2b2/BP1r1b2/1nK5 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 g5 h4 d5 f4 Kd7 f6 Kc7 f5 Kb7 f7 e5 h5 e4 f6 e3+ Kd3 e2 Kd2 e1Q+ Kd3 g3 b6 g4 c3 g2 Kc2 d3+ Kb3 d2 Kc2 d4 h6 g3 h7 d3+ Kb3 Qe5 Qf3+ Nc6 Ra5 d1R Nd2 Qdd5+ Nc4 d2 Kc2 Nd8 Rh3 Ne6 Rh5 Bd7 Ra3 Rc8 Ra5 Bc5 f8Q Bf2 f7 Bc6 Nh3 g1N Rh6 g2 Ng5 Nf6 Qf4 Rc7 Na3 Ne8 Bc4 Nf3 Ba2 g1N Qa4 Qe2 Kb1 Qeb5 Qg8 Ne5 f8B Nc4 Nf7 Nf3 Kc2 Rf1 Kb1 d1B Bg5 Nfd2+ Kc1 Nb1 Bd8 Qb4 Rb5 Qa5 Rc5 Ka6 b7 Be2+ Kc2 Bh5 b8R Bf3 Rb7 Rd1 Rcb5 Rd3 Kc1 Rd2 Qg7 Rg8 Qh8 Rg4 Qg8 Rf4 Rc5 Qd7 Rg5 Qd5 Qb3 Qab5 Qc2 Re7 Ba5 Rf5 Qa4 Rc7
b4qn1/pB2QP2/Bnnb2PR/KN2N3/2r1P2r/5qqk/2b2BRq/4Q2R w - - 0 1 illegal: No proof kernel
n7/qbB1B2r/2NR4/2Kpnn2/P1PnB1NP/r2RQn2/2kb4/Q2nb1Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 h4 b5+ Kc5 d5 c4 g5 a3 d3 h6 g4 h7 g3 f6 g2 f7 b3 f5 b2 f6 b4 Rh3 e5+ Kb5 d2 Rd3 b3 Ra2 Qd7+ Kb6 Bb7 Rg3 Nc6 Qh5 d1N Rd3 Bh6 f8B Nd4 f7 Ne7 Qg5 Nef5 Nf3 g1N Nh2 Ngf3 Qg1 Bd2 Be7 Qa4 f8Q Qa7+ Kc7 Nb5+ Kd7 N3d4 Ng4 Nc7 Qf7 Rag8 a4 Na8 Na3 b1N Qe8 b2 Nb5 Rg7 Bh3 Rhg8 h8Q Rh7 Raa3 Rgg7 Rab3 Rg6 Ne3 Rg3 Ng4 Re3 Na3 Rf3 Nc2 Rg3 Rb6 Re3 Rdb3 Rc3 Rc6 Kd3 Rd6 e4 Bg2 e3 Ra3 Rb3 Nb4+ Kc3 Qg7 e2 Nc6 Kc2 Be4+ Rd3 Qgh8 e1B Rb3 Ba5 Bf4 Nd2 Ra3 b1N Be5 N2f3 Bg3 Nb5 Qa1 Bad2 Bh2 Ne5+ Ke6 Kc1 Rb3 Rg3 Rd3 Nbd4+ Kf6 Rg2 Qb8 Bf4 Re6 Bc8 Qb4 Ra2 Qa5 Ng6 Bg3 Bh6 Bc7 Ne5 Qb4 Ra3 Qa5 Bb7 Qc5 Ne2 Qcf2 Kc2 Qf4 Nf7 Rd6 Nd2 Qff2 Nf3 Qfd4 Bhd2 Qc5 N3g5 Qce3 N7h6 Ke5 Ned4 Rf6 Ng3 Kd6 Ngf3 Bb6 Nf7+ Kc5 N7e5 Rd6 Qb8 Ba5 Ngf5 Bc7 Qa7+
2NQ4/6rb/1QP2P1b/2Bbpk1N/N1B1r1nK/3rB1b1/R4bqP/1b2nR2 w - - 0 1 illegal: No possible last move, all moves rejected
1NrQR3/bQb2qbP/bBB1b1k1/R1n5/2Nbn1P1/1r3P2/p5NQ/K5r1 w - - 0 1 illegal: No possible last move
Q4R2/b3P2K/3kbNbB/1r1PR3/1q2B3/3b1nPr/rQ1b1Rpn/1b1NB3 w - - 0 1 illegal: No proof kernel
1Qqb2R1/bnB2R1B/1K2k1r1/N1r1B2r/2rPPP2/1p3b2/1R1n1b2/1Qr1N3 w - - 0 1 illegal: No possible last move
8/B1N3r1/1nQn2Pp/B4K2/QbqNnP1R/Q1nBkb2/R3rrPr/5n2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Ke2 Kf7 f4 Kg6 c4 Kf5 b4 d5 g6 e5 c5 a5 c6 e3 Kf3 e2 b6 e1N+ Kg3 Ke4 b5 d3 c7 d2 b7 a4 b6 d4 Ne2 a3 Qa4 d1N Qd7 d3 Kg4 d2 Rh3 a2 Rf3 Nb2 Qe6 d1N Be3 Qd4 Ng1 Nd7 b8Q Nc3 b7 Ngf6+ Kg5 Qc4 Bb6 Bb4 Qe8 Nc2 Bc5 Nb6 Be3 Ra7 Qa4 Bg4 Rh3 Bf3 Bd2 Ne3 c8Q Kd4 Rh4 e4 Bd3 Nf1 Qh3 e3 Qbc8 e2 b8B e1R Kf5 Nfe4 Na3 Rg7 Ba7 Re2 Qcc6 Rf2 Be1 Ke3 Ne2 h6 Nb5 Re8 Nc7 Re6 Rc1 a1R Rc2 Nb5 Qh1 Ng5 Rc1 Nh2 Qd5 Nd1 Bc2 Ba3 Ne8 Rd6 Qc6 Ne4 Nc7 Rd2 Nd4 Rde2 Ba5 Bb4 Bd3 Ndc3 Rc2 Rc1 Qd1 Ra1 Qa3 Nbd6+ Ke5 Rc1 Ra2 Rb1 Qda4 Rh1 Qa8 Nf1 Q8c6 Qa6 Ke6 Rh2 Ke5 Qb5+ Ke6 Qc4+ Ke5 Ndc8 Kf5 Ncd6+
3RQn1R/b7/B2b1PN1/kP5P/1rQ3nb/2Bb1pnK/B1Qb4/rN2q2n w - - 0 1 illegal: No proof kernel
1rBRr3/r4NK1/bQ1NQp2/B2n4/1PB2nRP/4Rr2/br3bP1/2k1b2q w - - 0 1 illegal: No proof kernel
K6k/2Qr4/1nnBP3/N2PrNn1/R1p1q1bP/2N2r1n/1RBn3Q/b2B3r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 c5 Ke3 g5 Ke4 f5+ Ke3 Kf7 d4 Kg7 b4 a5 h4 g3 b6 a4 d5 c3 b5 c2 b7 f4+ Ke4 g4 e3 a3 e6 a2 e7 f3 e8B g2 b6 g3 Qd2 f2 Bh5 c4 Ba3 c1N Nf3 g1N Ke5 g2 e4 Ne7 Bd3 f1R Rh2 Nb3 Bc2 Nh3 Nd4 g1N Bhd1 Rh7 Bd6 Qe8 Nf5+ Kh8 Nc3 Rf3 Qf2 Ra3 Qc5 Qg6 Qc7 Nd2 Kd4 Rf7 Kc5 Ng5 e5 Nbc6 b8Q N1h3 b7 Bg7 Kb6 Qe6 Qa7 Bd7 b8N Nc8+ Kb7 Qe8 Qf2 Be6 Qe2 Rd7 Qf2 Rb3+ Ka8 Ra3+ Na4 Rae3 Nc3 Re1 Qg3 Re2 Rf2 Qe7 Qh2 Re1 Ne3 Bg4 Nf5 Qe6 Rg2 Qg6 e6 Re5 Na6 Bf6 Nc5 Qh7 Nb3 Qg6 Ng3 Qe4 Na5 Bg7 Nf5 Bf6 Rb1 a1R Rb4 Rc1 Ra4 Rb1 Be2 Rh1 Bed1 Bd8 Qb7 Bb6 Qc7 Bd4 Na2 Bb2 Nc3 Ba1 Bb1 Nb3 Rb2 Nd2 Bbc2 Nb6+
Q3RQ2/KN1n1q2/3P3P/P2Bn1k1/2Rp1Nr1/rn3bBr/1r1r4/b1n1R1B1 w - - 0 1 illegal: No proof kernel
nn6/n1n3P1/QBr2nP1/1q4Q1/BRN1Rr2/2B1qnpb/K2bP1Nk/1Q6 w - - 0 1 illegal: No proof kernel
2B1rb1k/qR3P1q/1P3R1N/rr2Q3/bnQ5/rR2r1pK/2rP3B/2N1nN2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kf7 Kf2 a5 Kg3 g5 h4 Kg7 b4 c5 h5 e5 d6 e3 f5 e4 b6 a4 b7 c4 d7 c3 b5 e2 Qc2 e1R Qb3 c2 Nh3 e3 Ng1 e2 Bh3 a3 Qd3 a2 Bb2+ Nf6 Be5 c1R Qc4 Qe7 d8N Bd7 Nf3 Ra5 Nc3 Nc6 b8R Nb4 Rb7 Nc2 Rb1 a1R Nh2 R1a3 h6+ Kh7 Rg1 Nd5 f6 Ndb4 Nf1 Red1 Nf7 e1R Kh2 Re3 Rb3 Ne1 Na2 Rc2 Nc1 Be8 Rg3 Qc7 Rf3 g3+ Kg1 g2 Kh2 g4 b6 Ba4 Kg3 g1Q+ Kh4 Bg7 Bh2 g3 Bc8 Qh1 Kh3 Rhe8 Rf4 Bf8 Rf3 Kg6 h7 Qb8 h8Q Qa7 Nh6 Rb5 Nd3 Rda1 f7 R1a2 Qhd4 Kh7 Rf6 Kh8 Nc1 Qe4 Qe5 Qh7 Qg4 Rcc5 Qc4 Rc2 Qce6 Ra5 Qc4 Rcb5
6rQ/1K1bp1n1/3QqbN1/Q3B1rP/1BP1q3/1BbR1b1k/1NbP1b2/1R2n3 w - - 0 1 illegal: No possible last move, all moves rejected
2kBB2b/1nb1p1rQ/1b5q/P1rb2N1/4rQb1/1PrB1PK1/N7/Q2Rn2R w - - 0 1 illegal: No proof kernel
b1K2R2/1NP2pBr/R1Nq2B1/2r1r1bn/1P3k2/b2Q1n2/3P1rQR/1B3bb1 w - - 0 1 illegal: No proof kernel
5N2/BpPb2q1/4P2R/bkP2Qn1/2b1bNK1/2rr1R2/B1rr2Nb/2QnR3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 axb4 c6 g5 Kf2 f5 Kf3 d5 c4 g4+ Kf2 f3 Kg3 f4+ Kf2 d4 h4 b3 e4 b2 a4 d3 e5 d2 h6 Nd7 h7 Nh6 h5 Qg5 a5 Qg7 a6 Nf6 a7 Nf7 c7 Kd7 e6+ Kc6 h6 Bd7 Nc3 b1B Nce2 Bb4 Rh4 Ng5 Nh3 Be4 Ba3 Rhf8 h8R Nd5 h7 Nc3 Bc1 Rf5 Rf8 Rd5 h8N Rd4 Qe1 d1R Be3 R1d2 Ng6 Rd6 Rh6 g3+ Kg1 g2 Kh2 f2 Rf5 f3 Kg3 g1B Nf8 Bh2+ Kg4 Rc2 Rc1 Rd8 a8Q Be8 Qa5 Rdd2 Ba7 R8d4 Rf4 Bd7 Qf5 Ba5 c5 Kb5 Qd1 Bd3 Bg2 f1B Ra1 f2 Bd5 Bg2 Ba2 Bge4 Qf1 Bc4 Qe1 f1R Rf3 Rb2 Qb1 Rb3 Qb2 Rb1 Qa3 R1b2 Re1 Rbc2 Qc1 Rd1 Ng3 Rd5 Nf1 R1d2 Nf4 Nd1 Ne3 R5d3 Neg2 Rbc3
7K/2nqN3/2b2Nn1/bBr1Q1p1/nrrBQ1BP/2PR3r/1P1b3R/2k1n1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 e4+ d3 h3 d5+ e6 g5 e5 a5 b6 d4 b7 a4 Be2 a3 Bf3 g3 Qf1 a2 Be2 g2 Nf3 g1B Be3 Bd7 Qg2 Ra4 Bf4 Bb4 Bg3 Ba5 Bf2 Ne7+ Kf6 Bc6 Kg7 f5 Bd1 d2 Be3 d3 Qf2 f4 Qh2 Ng6 e7 Rb4 e8Q Qd7+ Qe7 Na6 b8N Nc7 Bd4 Be3 Ng1 f3 e6 f2 Be2 d1R Qe5 f1R Rh2 Rf5 Bg4 d2 Nc3 Rc1 Nd5 d1N Nf6 Bd2 Rb1 a1N h4 Rf3 Qe4 Nc3 Qe5 Na4 c3 Kb3 Qe4 Re1 Rd1 Rc8 Qe5 Kc2 Kh7 Bd5 Nc6 Re4 Kg7 Rh3 Kh7 Nf8+ Kh8 Rc4 Qh7 Rc5 Ne7 Bc6 Qhf5 Rb8 Qf3 Rb4 Qh1 Kb3 Qf3 Nc2 Qd3 Rf4 Qg6 Ne1 Qge4 Bc1 Rd3 Bd2 Neg8 Kc2 e7 Kc1 e8B Rcc4 Ne7 Rf5 Q5f4 Rfc5 Qff5 Bb7 Qfe5 Ng6+ Kg8 Qd6 Bb5 Qd7 Kg7 Bc6 Kg8 Nf8 Kh8 Ng6+
b1B1r3/1KN4b/3r2B1/bn1Q2pR/2PRB3/2N1QPk1/3n2P1/q1Nnr1br w - - 0 1 illegal: No possible last move
1NB5/bbn1R1r1/Q2P1rn1/1B1p1RP1/K1bPnnrq/Q5N1/6Q1/4k1Br w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 c5 Qd6 cxd6 exf4 b4 Kd7 e4 Ke6 g4 Ke5 b6 Kd4 d3 h5 Kd2 a5 Kc2 f5 Kb3 c5 g5 a4+ Ka3 h3 e5 f3 b5 f2 e6 h4 b7 h2 b6 h3 e7 f4 e8B f3 Qd2 c4 Qa5 c3 Ra2 c2 Bd7 Rh4 Nc3 Na6 b8Q Ne7 b7 Rg4 Qb5 Ra7 Rb2 Bg7 Be6 Nc7 Qa6 Ng6 Bf4 c1N Na2 Ne2 Bc1 Nef4 Bg2 f1B Nb4 Kc3 Qa8 f2 b8Q Bb7 Bc8 Bd4 Be3 Bc5 d4 Bc4 Rb1 f1N Re1 Nd2 Bf1 Ne4 Bf2 Kd2 Ne2 Bb6 Ng3 Bc5 Rg1 h1Q Be2 Bb6 Nc6 h2 Kb4 a3 Ka4 a2 Rgf1 Bc5 Bg1 Bb6 Ka3 a1R+ Kb4 Ba2 Bb5 Bc4 Re3 Rb1+ Ka4 Re1 Rff3 Rf1 Rf2+ Ne2 Rf7 Ke1 Re7 Rf6 Rf3 Nef4 Rf2 Nce6 Qc7 Bc5 Nb8 Bb6 Qd7 Nc7 Qe8 Qg2 Qh8 h1R Qh3 Qh2 Qg2 Qh4 Kb4 Ne2 Rf5 Nef4 Qa3 Ra5 Qa6 Ba7 Qb3 Ra3 Qba4 Rf3 Qa3 Rf7 Ka4 Rg7 Rf8 Ne2 Rff7 Rf6 Rf8 Nef4 Rff7 Re6 Rf5 Rf6
b3K2R/5P2/1NP5/4rrbn/b2r1r2/R1bP1QpN/q1knNB1Q/B3nB2 w - - 0 1 illegal: No proof kernel
NR1B4/rrp2B2/2n2Qn1/nq4P1/Bk3b2/6bR/QrKNNPP1/4rb1b w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 a4 Kd7 d4 Kd6 Kd2 h5 a5 e5 a6 b5 a7 h4 Ra2 h3 Qb3 e3+ Kd1 h2 Qa4 e2+ Kc2 e1R Rb2 b3+ Kc3 b4+ Kd2 e4 Bd3 Ne7 Qa2 Qd7 Bf1 Ba6 Bc4 Ng6 Ne2 e3+ Kd3 Bg7 Nd2 Nc6 Bb5 Rab8 a8B Be5 Rb1 b2 Kc2 Rhc8 Ba4 Bg3 Bb7 Rh8 Bc8 Qe8 Be6 Rb7 Bf7 b3+ Kc3 Kd7 d6 Rh4 d5 Rf4 Ra1 b1R Ba3 b2 Kc2 Ra7 Bc5 Rb4 Bd4 Rbb7 Bf6 Qe5 Bd8 Bb5 Ng1 Bf1 Ne2 Kc8 d7+ Kb8 d6 Qb5 Nf4 e2 Nd5 Ka8 Nb6+ Kb8 Rg1 h1B Na8 Nce5 Be7 Nc6 d8N Kc8 Ne6 Kd7 Nf4 Qa6 Bc4 Qb5 Nd5 Ke6 d7 Ke5 d8Q Kd4 Bf6+ Kc5 Nc3 Kb4 Bd5 Red1 Bf7 e1B Nb3 Bd2 Ne2 Bdf4 Nd2 Re1 Qh8 Rbd1 Bd8 b1N Qf6 Na3+ Kb2 Nc4+ Kc2 N4a5 Rb1+ Kc5 Rb3 Rb1 Rf3 Bh4 Rh3 Bhg3 Rh8 Qc4+ Qc3 R7b3 Rh6 Red1 Nc1 Be2 Re1 Bf1 Rh3 Rb4 Re4 Re1 Ne2 Rb6 Re8 R6b4 Bf6 Rbb7 Rb8 R1b6 Bb3 Kb5 Bd8 Qd5 Qh8 Kc5 Ba4 Rb2+ Kc3 Qe5+ Kd3 Kb4 Qf6 Rbb1 Kc2 Qb5 Rh5 Rb3 Rh3 Rb2+
2BQ1q2/K1qQB3/R7/n1Rn1rbN/4Pnk1/2NQq3/2PPpq1r/3bnR2 w - - 0 1 illegal: No proof kernel
BB1rQ1q1/bNq3qB/b2n1b1k/8/3qPR1r/2p2R2/1n1bPPKR/5N1Q w - - 0 1 illegal: No proof kernel
4bbb1/Nr2R3/1B1k2n1/4RPbK/nr3P1q/q1q2PR1/1QB2p2/1Q1q1N1Q w - - 0 1 illegal: No possible last move, all moves rejected
B7/q1N3q1/1K1k2NB/rp1P4/PnQQrR2/br3b2/1P1bb1RR/1r1nB3 w - - 0 1 illegal: No possible last move
n4qNK/1b1k3r/q1nb1rP1/1BR1P1Q1/pn1N1B2/1R3P2/2QB4/1n2qNq1 w - - 0 1 illegal: No proof kernel
NN1r2n1/1K6/bPR1pnB1/4q1Qn/1B6/n1r2QPr/1Pqr1b2/k4BRQ w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 d5 c4 h5 f6 Ke6 f7 a5 c5 h3 b6 h2 c6 a4 c7 a3 Bb5 a2 Bf4 h4 Qf1 h3 Qd1 d3 Bh6 d4 Ke4 d2 f4 d3 Na3 Nd7 Ne2 Qe8 Rc1 a1N Rg1 Ba6 c8B h1N f5+ Kd6 f6 h2 Rc3 Nc2 Nd4 Rh7 Qc1 d1Q Bd2 Rh3 Nc6 Rb8 Bc4 Kc5 Nb5 Na3 Nc7 Qc2 Na8 Rf3 Bb7 Rd8 Nb8 Kb4 Kd5 Ng3 Kc6 Nh5 g3 h1R Qe1 Bh6 f8Q Rh3 f7 Be3 Qg7 Bf2 f8Q Ndf6+ Kc7 Qb5 Be4 Qe5+ Kc6 Ka4 Qg5 e6 Bg6 Re3 Qd1 Rf3 Be1 d2 Bf1 Rfd3 Qf3 d1R Qfh6 R1d2 Rc5 Kb3 Qh7 Bb5+ Kb7 Ka2 Rc6 Ka1 Qh8 Re2 Bb4 Rc3 Qhh6 Red2 Qh7 Ng7 Qhh4 Ngh5 Qhe4 Bd3 Qh1 Bc4 Qef3 Ba6+
B1Qq2Rq/6nr/P1Qq1Qbr/8/Nb3B1R/Np1P2b1/P1R4b/Kq2kn2 w - - 0 1 illegal: No possible last move, all moves rejected
bn2n1R1/b2qQQ1P/2n3Nr/B1R2Nq1/6P1/PBK2k2/3n2pB/b1N1r1b1 w - - 0 1 illegal: No possible last move, all moves rejected
b5nQ/2P1K3/1q3nP1/bNRbPqpR/2b4q/3QqR2/3B2rr/Q1NB3k w - - 0 1 illegal: No proof kernel
1Nbq2QR/2p1N1P1/3rK2R/n3b1BB/2P5/r1qNr1nk/2B1P3/q1Q3qr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e6 d4 e5 Qd3 Rh7 Qg3 Rh8 dxe5 gxf4 g5 Nc6 Qh3 Nb8 Qg4 hxg4 Kf2 Ke7 c4 Ke6 b4 Kf5 h4 a5 g6 d5 h5 f3 Kg3 f2 b6 a4 b7 a3 g7 d4 e6 d3 e7 a2 e8B d2 h6 d1R b5 Nf6 h7 Ra3+ Nc3 Nc6 b8N Rd7 b6 Na5 Nh3 Bd6+ Nf4 Be5 Bg2 f1R Rh6 Rh1 b7 Rg8 Rb1 a1Q h8Q Rf8 Qg8 Nh5+ Kf2 f6 Ke3 g3 Nd3 Kg4 Be4 f5 Nd5 g2 Ne7 Ng3 Bh5+ Kh3 Rh8 Rf7 Rb6 Qc3 Rbh6 g1Q+ Kf3 Rf8 Bg5 f4 Beg6 Re8 Bf5+ Kh2 Kg4 f3 Bfg6 f2 Be4 Nf1+ Kf5 Ng3+ Ke6 f1Q Nc1 Rf8 Bc2 Kh3 Na6 Qfe1 b8Q Rf2 Qb1 Rf3 Nd3 Re3 Nb8 Qef1 Qb2 Qa1 Qc1 Rd6+
q3QR2/kPqNrQ2/b1q1pBn1/b1R2P2/3n1N2/Pq1n4/K3B1r1/1Bn4N w - - 0 1 illegal: No possible last move
4KR2/1pr3b1/1b1RR3/BqnQ1r1k/6n1/PNB1b1Qq/n5PP/n2b1N1B w - - 0 1 illegal: Other
qNqr1rb1/PR6/1NbP1PRb/Nq2QB2/2n5/1p3k2/1K4q1/Q1B1Bbn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 f4 Kd6 d4 e5 Kd2 c5 Kc2 h5 a4 b5 f6 b3+ Kc3 b2 f5 h3 f7 b4+ Kb3 c4+ Ka2 b3+ Ka3 h4 a5 e4 a6 e3 a7 h2 g5 c3 g6 c2 g7 h3 Bd3 e2 Bd2 c1Q Nc3 e1Q Nge2 Nd7 Na4 Ne5 Nb6 Qf1 Be1 Nf6 g8Q Ba6 Qg3 Ne4 f6 Nd2 Bf5 Bh6 f8N Qdc8 Nfd7 Q1c6 Nb8 b1B Kb2 Qb5 Rg1 h1Q Ra4 h2 Rb4 Bc2 Qa1 Rd8 Qc3 Rf8 Rg6 Nef3 Qe3 Ng1 Qe8 Kc7 d6+ Kb7 d7 Qfg2 d8B Bb1 N8d7 Kc6 Qe5 Bd3 Be7 Bc4 Bd6 Bg8 Bc7 Qgd5 Bd6 Qhg2 Bc5 h1B Be7 Qde4 d5+ Kb7 d6 Kc6 Bd8 Qed5 Nb8+ Kc5 Qf4 Qdc6 Nd4 Qe8 Ndc6 Qee4 Nc4 Kd5 N6a5 Qee8 Qh2 Kd4 Nb6+ Ke3 Qe5+ Kf3 Be7 Qec6 N8d7 Rd8 Bf8 Rb8 Bg7 Qa8 Bf8 Rb7 Nb8 Rf7 Bg7 Rff8 Rc4 Bb7 Rc7 Bc6 Re7 Qg4 Rb7 Bg2 Qe8 Bf1 Qe5 Bg5 Bh6 Be3 Bf4 Qg2 Bh2 Bg5 Bf4 Bh6 Bc2 Nb1 Bc1 Nd2 Bf5 Nc4+
4q2Q/p3RNq1/3b2QP/2Qn1n2/1BNR1P1r/Prbn1K2/2bbn3/4kB1N w - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b4 d5 cxd5 h5 bxc5 hxg4 Ke2 Kf7 d4 Kg6 h4 Kf5 f4 g5 c6 e5 a3 b5 c7 b4 h5 b3 d6 g3 d5 Kg4 d7 b2 d6 g2 Qb3 e3 Qa4 Kg3 Ra2 e4 Rh2 g4 Qb3 Ne7 Qg8 Nf5 Qg7 Qe8 d8Q Nc6 d7 Ne5 Nd2 b1N Qf7 Bd6 Ra1 Rb8 Qff6 Nc3+ Ke1 e2 Qe6 Nd5 Nc4 Rb3 Nh3 g1Q Qg6 Nd3+ Kd2 e1B+ Ke2 e3 Nf2 Bb7 c8Q Bd2 Qc5 Bc6 Qc8 Ba4 d8N Bc3 Bd2 Rh6 Re1 Qg2 Kd1 e2+ Kc2 Kf3 Nh1 g3 Nf7 Rh7 Rd1 e1B Qb8 Qg1 Re2 g2 Re7 Qd4 Qa8 g1N Qac8 Ne2 Qd8 Bb2 Bb4 Qg7 Rd2 Bc3 Kd1 Ne5 Rd4 Nd3 Qdb6 Rh6 Qh7 Bed2 Qh8 Rg6 h6 Rg4 Qbc6 Rh4 Qa6 Be5 Qe6 Bd6 Qg6 Ng1 Nce5+ Ke3 Ng3 Kf2 Kc2 Ke1 Nc4+ Ne5 Nh1 Bb5 Ne3 Nc4 Kd3 Nb2+ Ke4 Ne2 Kf3 Bd3 Nc4 Bc2 Qg8 Nd3 Qf8 Qb5 Qh8 Qe8
6QN/p1r1r1RN/3r2BP/2nnb2R/3PK1k1/Q1P4q/b1RB1qr1/1Bb4b w - - 0 1 illegal: No proof kernel
N3nq2/3r2Bq/1Qrbn1Pr/Q1pBq3/1KPQN1q1/P5q1/1nB4k/R3R3 w - - 0 1 illegal: No possible last move
1K3Qbr/1RN1n3/1B1rpQ2/1P1nqn2/2B1kB2/1qq3r1/1qq1PPN1/1Q2R3 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Rh3 Bh6 Rh1 fxg4 Bf4 g3 Be3 g4 Bc1 Bg5 hxg5 Kf8 Rh6 Kf7 Rh1 Ke8 Kd2 Kf7 Kd3 Kg6 Kc4 Kf5 Kc5 h5 b4 a5 c4 d5 b6 d3 b7 g2 g6 d2 b5 g3 g7 a4 Na3 d4 Qc2+ d3 Nf3 g1Q Ra2 d1Q Bd2 h4 Rh3 g2 Be3 Be6 Ng5 Qa5 Qb1 Nc6 b8B Ra6 Nc2 a3 Ne1 Nf6 g8Q Qc3 Qf7 Qdc2 Rh1 d2 Bbf4 d1Q Qf8 Bg8 Ne6 h3 Nc7 e6 Bd4 Bh7 Kd6 Qh2 c5 g1R Ng2 Ne7+ c6 Bg8 Qg7 Nfd5 Bb6 Qdd3 Qf6+ Ke4 Ra1 a2 Kd7 Ng6 Kc8 Nge7+ Kb8 Qdc4 Nh4 Rg3 Bg2+ Rf3 Rc1 Q4b3 Re1 Qg3 Bh1 h2 Ng2 Qg5 Ne8 Rfh3 c7 Rg3 c8Q Qge5+ Nc7 Qcb2 Qcf8 Q2c3 Bd4 Rd6 Bb6 Rg4 Qb2 Rg3 Rac1 a1Q Qb1 Q2d3 Rc2 Qd1 Ra2+ Qdc2 Ra7 Qab2 Ne3+ Rf3 Bg2 h1N Rb7 Ng3 Bh1 Qc6 Ng2 Ngf5 Q6g7 Nf6 Ne3 Qcc5 Bg2 Kd4 Qgf7 Rg3 Bd5 Rg4 Ng2 Rg3 Be4 Nfd5 Qf6 Rg4 Bd3 Rg3 Ba5 Q5c3 Bc4 Ke4 Bb6 Rh5 Bd4 Rh4 Bb6 Rh8
3b2Q1/1B2qq2/2q2kq1/4R1p1/rNr2qP1/Bqn1Q2K/PRn1N2P/3N2Qq w - - 0 1 illegal: No proof kernel
4NrrR/P1N1qBqK/r1kp3b/Q5rQ/3P1r2/R4P2/1Rr2B2/N3rn1b w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b3 b5 Ba3 b4 Bc1 Nc6 Rh3 Na7 Rh1 Nb5 cxb5 a4 Qf3 axb3 Qe2 Ba6 Qd1 Bc8 Ke2 h5 Kf3 c5 Ke4 e5 d4 d6 a4 Kd7 g4 b2 a5 b3 f6 h3 Kf5 h2 Kg6 c4 a6 h4 g5 e4 f7 h3 a7 c3 b6 e3 b7 c2 b8Q e2 Nc3 b1R Bb2 c1R Nb5 e1R Ra3 Bb7 Ne2 Rc2 Nc7 Qe7 Qd8+ Kc6 Bc1 b2 Be3 Nf6 Nc1 Ra1 Qh5 b1Q Nb3 Ne4 Bc4 Bh6 f8R Ng3 Bf7 Rg8+ Kh7 Nf1 g6 Qc1 Rg1 h1R g7 h2 Rg2 Rg1 Re8 Rf8 g8N h1R Nf6 Rh4 Rh2 Raa2 Na1 Rf4 Rg2 Rg8 Rf8 Qd1 Nfe8 Qg4 Rh2 Rg5 Rh8 Qgd7 Rg2 Rg8 Rh2 R1g5 Rg2 Kb6 Rh2 Bh1 f3 Kc6 Rd2 Qg4 Bf2 Rf8 Rad3 Ra6 Ra3 Rc3 Rb2 Rc2 Ne6 Rb8 Qa5 Rfg8 N6c7 Qgd7 Nf6 Rbf8 Nfe8 Qde6 Qh3 Qe5 Qh5 Qg7+
3bq3/p5Q1/PB1KP2Q/1bn2Rb1/b1N1B2q/2PBQbkr/N1n5/2b2Rq1 w - - 0 1 legal: proof: f4 d5 e4 dxe4 b4 g5 h4 c5 bxc5 gxh4 Kf2 b5 Bc4 e5 Nc3 e3+ Ke1 e4 Nb1 Na6 Bd3 Rb8 Bf1 Rb6 Nh3 Re6 Ng1 Re5 fxe5 Qc7 Na3 Qe7 Nb1 Qd8 Ke2 Kd7 g4 Ke6 d4 h5 a4 f5 g5 b4 g6 h3 a5 f4 d5+ Kf5 c3 Kg4 c6 h2 c7 f3+ Ke1 h4 g7 h3 e6 e2 Kd2 e1B+ Ke3 b3 Kd4 e3 Ke5 b2 d6 e2 d7 f2 Be3 Nb4 a6 Nc2 Nf3 Ba3 Qd6 Kg3 Nfd2 Qe8 d8Q Nf6 Nb3 Bd2 Qc5 e1B Kd6 Nd7 Bd3 f1B Nc1 Bb7 c8Q Bc6 g8B Ba4 Qe7 Rh7 Bd4 Bg5 Nd2 b1Q Na2 Bc1 Qg7 Qb4 Be4 Bfb5 Rf1 h1Q Rf5 h2 Nc4 Rh3 Bh7 Qg1 Qc7 h1B Qh6 Bf3 Rb1 Nf8 Qcg7 Nd7 Bg6 Bd8 Ra1 Bcg5 Rc1 Bed2 Rf1 Bc1 Be3 Qb1 Qcd4 Qb3 Qd2 Qb2 Bb6 Nc5 Qe3 Qb4 Bd3 Rh1 Rf7 Rh5 Bge4 Rh3 Rf5 Qf7 Na3 Qh5 Bc6 Qe4 Nc4 Qeh4 Bce4 Qe8
1qQR4/r4PbQ/B1rQrbK1/6np/1Pr1bBRq/N1r2B2/1k4rP/N7 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Bg2 Nc6 Bf1 Nce7 Kd2 exf4 Ke1 f3 Ra5 f4 Ra1 Nf5 gxf5 Bb4+ Nc3 Bc5 Nb1 Bf8 Kf2 Kf7 c4 Kf6 e4 Ke5 b4 a5 c5 d5 b6 h5 b7 g5 f6 d3 b8Q+ Kd4 c6 g4 c7 a4 e5 d2 e6 a3 f7 a2 e7 Ra7 e8Q Bb7 c8B Bg7 Qe7 Rh6 Qb3 d1Q Bd7 Rc6 Qc7 Nf6 Bg2 Qb8 Qe8 Nh7 Qf8 Ng5 Qa5 Qd3 Qaa4 g3+ Ke1 Qc4 Kd2 f2 Qa5 f1R Qad8 f3 Qde8 f2 Bf3 g2 Qc8 Re1 Qd6 f1R Na3 Re6 Qc2 Ba8 Rb1 a1B Qh7 Rfe1 Rb3 R1e4 Rc3 Bb2 Kc2 Bf6 Bf4 Bb7 Kd2 Re3 Rc1 Rc3 Rd1 Ba1 Qe8 Bg7 Bc8 Ba8 Ba6 Bf6 Nh3 g1R Qc8 Rg2+ Nf2 Bg7 Rdg1 Bf6 Kd1 Bb2 Ne4 Kd3 Ke1 d4 Kf1 Bg7 Nd2+ Re4 Ndb1 Re2 Bg3 Rb6 Qdc5 Rb3 Nd2 Kc3 Qe6 d3 Qec8 Ree6 Q5c6 R2e4 Kg2 Rd4 Qc5 Be4 Bd6 Rc6 Kg3 Ba1 Kf4 Bb2 Nf1 d2 Ne3 d1R Nec2 R1d2 Na1 Rc2 Bc7 Rdd2 Rg3 Rg2 Rd1 Rc1 Rd7 Bd5+ Kf5 Rcc2 Q5f8 Qh4 Rd8 Rc1 Bf4 Rcc2 Nc4 Ra3 Qd6 Rc1 Nc2 Kb3 Rg4 Bbf6 Na1+ Kc3 Ne3 Kb2 Kg6 R1c4 Nec2 Rac3 Na3 Be4+
Qr1r2BK/R5Rb/QnP4r/Pq1p3r/N1r5/Nk6/n2P1QBq/3nB1r1 w - - 0 1 illegal: No proof kernel
2K2Q2/1pR2r2/rPB2BN1/2b2b1P/1r4Pb/1RrrN2k/R1Qq3b/2N2nq1 w - - 0 1 illegal: No proof kernel
1BN2n2/q3np1Q/5R1q/3PqP1q/NB2Q1Bq/2rn2k1/P1b5/Qrn1KR2 w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 h4 gxh4 d6 Bg4 d5 Bg7 e3 Bd4 exd4 Bc8 f4 Kd7 g4 h5 g5 e5 g6 b5 g7 c5 Be2 b3 Be3 h3 Qd3 b4 Qa6 h4 Qa5 h2 Nh3 b2 Ng5 c4 Kd1 e4 Kd2 c3+ Kd1 h3 Bf3 c2+ Ke2 b3 Bg1 e3 Qc5 Ra3 Nc3 b1Q Qc4 b2 f5 Ba6 Nge4 Qf8 Bh5 Ne7 g8Q Rb3 Bg4 Qe1+ Kf3 Qg3+ Ke2 b1Q Qd3 Qg7 Na4 Rc3 Bh5 Qb6 Bg4 Qg5 Qh7 Rf8 Rf1 Bb5 Qh4 Qa7 Qc4 Q3f4 Qe1 Qg3 Qa1 c1N+ Kd1 Ba6 Bf2 Q3f4 Bg3 Rc8 Qe2 Bd3 Qf3 Rb3 Be1 Rc6 Bb4 Rb1 Qg2 Rc3 Qe2 Kd8 d7 Kc7 d8B+ Kd7 d6 Bc2+ Ke1 Kc6 Bba5 Kd5 Bdc7 Nd7 Bb4 Nf8 Bb8 Qg6 Qf3 e2 Qd3 Qg3+ Kd2 e1N Qe3 Qg7 Qh6 Qh7 d7 Ned3 Nd6 Qe5 Nc8 Ke4 d8Q Qg6 Qh7 Qc6 Re1+ Kf4 Ref1+ Kg3 Qb6 Qcd6 d5 Qg6 Qd4 Qg7 Rf4 Qg5 Rf1 h1Q Qc4 h2 Re1 Qd6 Re6 Qe5 Qe4 Qgg7 Rf6 Qh6 Be2 Qf3 Bd1 Qfh5 Bg4 Q6g6 Rf1 h1Q Qg7 Q1h4 Qh7 Nf4 Ke1 Qhh6 B4d6 Qgh5 Bb4 Nfd3#
4bb2/1b1nqBRB/1R1NR1r1/2Q2N2/Pqp2B2/1bk1PrQ1/2P4K/1qb2q2 w - - 0 1 legal: proof: g4 a5 d4 g5 h4 e5 dxe5 f5 b4 axb4 Rh2 Na6 Rh3 Nc5 Rh1 Ne6 Qd4 fxg4 Qd1 g3 Nf3 g4 Ng1 Ng5 hxg5 Ke7 Qd6+ Kf7 Qd1 Ke8 a4 Ke7 f4 Ke6 g6 c5 g7 d5 Bg2 b5 Kf1 h5 Ba3 h4 Bc1 b3 Rh2 b2 Nc3 b1Q Bh1 h3 Be3 b4 Bc1 g2+ Kf2 b3 Kg3 d4 Na2 Kd5 e6 Kc4 e7 b2 e8B d3 f5 d2 f6 Rh6 f7 Nf6 g8Q Rg6 Nc3 Nd7 Ne4 Qe7 Qe1 d1B Qa5 Bb7 Nf3 g1Q+ Rg2 h2 Nd4 Qf1 Nf5 Raa6 Be3 Raf6 Bf4 Bd5 Qc7 Be6 Ned6+ Kc3 Rg1 Bb3 Be4 h1B Kh2 c4 Qc5 Bg2 Bd3 Bb7 Rg2 Bg7 f8R g3+ Kh3 Bh6 Bf7 Bg5 Rb8 Bh6 Kh4 Bf8 Rg1 g2 Kh3 Re6 Ra3 Re3+ Kh2 Rf3 Be4 Qa1 Re8 b1Q Ra2 Qe1 Rb2 Qa3 Bd3 Qb4 Be4 Rf6 Qg3 Qf1 Nh4 Rh6 Bh7 Re6 Nhf5 Rg6 Ra8 Qf2 Re1 Qf1 Ra7 g1B+ Kh1 Be3+ Kh2 Be4 Rb7 Bc1 Rb6 Bb7 e3 Qd3 Rg1 Rf1 Rc6 Bh5 Ra6 Rf3 Rb6 Qa3 Rc6 Qf1 Ra6 Ba2 Rbb6 Qab4 Qh4 Qd8 Bfg8 Ba8 Rb7 Rg4 Nb5+ Kb2 Re6 Be8 Nbd6 Kc3 Bf7 Bb3 Rb6 Qe7 Qh3 Rg5 Rg4 Bb7 Qg3 Rg6 Rg5 Rf6 Rg7 Rg6
1r2N3/n2q1Bn1/N2Q2Bk/Q1q3rp/rbr1Pn2/P3R1n1/2R2K1P/2B1Rr2 w - - 0 1 legal: proof: f4 c5 g4 e5 b4 a5 d4 axb4 Ba3 f5 Bc1 b6 Nf3 Ba6 Ng1 Bd3 fxe5 cxd4 Nh3 f4 Ng1 Bf5 gxf5 Ra3 Bg2 Ra7 Bf1 Ra8 c4 Kf7 e4 h5 a3 g5 c5 Kg7 c6 d5 f6+ Kh6 c7 b3 c8R d3 e6 f3 e7 d2+ Kf2 g4 e8B d4 f7 b5 Rc5 b2 Kg3 f2 Nc3 b1R Be2 f1N+ Kf2 g3+ Kg2 d3 Ra2 b4 Ba4 b3 Bf3 b2 Nh3 Qd5 Be8 Nc6 Bg4 Ra4 Nf2 Nge7 Nh3 Na7 Nf2 Rg8 Qe1 Rg5 Rc8 d1R Bf5 d2 Nd3 Qc5 Bg6 Nf5 Nb5 Ng7 Nb4 Ra1 Rc7 b1R Na6 Rb2 Nd6 Rb8 Kf3 g2 Rc2 Ng3 Rb7 Rc4 Rb3 g1N+ Kg2 Be7 f8Q Nh3 Re3 Nf4+ Kf2 Rab1 Qf6 R1b4 Bef7 Ra4 Ne8 Bf8 Qd6 Be7 Qe2 Re1 Qed3 d1Q Qd2 Qg4 Qa5 Qd7 Qac7 Bf6 Qcb6 Bc3 Qa5 Rd1 Re1 Bb4 Ree2 Rg1 Re1 Rf1+
2n1qq2/kn1R1rn1/1r1Pp1Q1/3N1R1B/K4P1R/rn2PN2/1Q5B/rb3N1n w - - 0 1 illegal: No possible last move, all moves rejected
1b6/B3Q2R/K2NpPb1/Br3RbQ/kqr1BN2/rb6/2QrPP2/bq2n3 w - - 0 1 legal: proof: g4 a5 c4 g5 b3 f5 b4 axb4 c5 Nc6 h3 Ne5 c6 Nf7 gxf5 g4 h4 Ng5 hxg5 dxc6 Bb2 c5 Bc1 c4 a4 Kd7 d4 Kc6 Kd2 h5 g6 b5 g7 c3+ Kd3 h4 a5 c2 a6 b3 a7 h3 Ra2 b2 Rh2 g3 Ra3 b4 Kc4 b3 Nc3 b1B Na4 g2 Ra2 b2 Nc5 Nh6 g8Q Qd6 Kb4 Nf7 Ka5 Be6 Bg5 c1B Qc2 Bg7 Qh7 Rhd8 Qd3 Bb3 Qc2 e6 Bh6 Ne5 Qd1 Nd3 Nb7 Ne1 Be3 Qb4+ Ka6 Rd7 Rh1 h2 Nh3 g1R Qd2 Rg4 Nf4 Be4 Nd6 b1Q Qh4 Rb8 Rb2 Rb5 Qe7 Be5 f6 Bg6 Ra2 Bb2 Ra5 Ba1 Qd3 Rg3 Bg2+ Rf3 Qf5 Rd8 Qh5 Rc8 Rf1 h1R Rg1 Rh4 Rh1 Rd8 a8Q+ Rb7 Qc8 Rb5 Bc1 Rg4 d5+ Kc5 Nh3 Rc4 Nf4 Rd3 Be4 Rd2 Qa8 Ra2 Rh2 Ra3 Qc8 c6 Rh4 Rd4 Be3 Qd2 Qg5 Kb4 Nb7+ c5 d6 c4 d7+ Rc5 Rh7 c3 Nh3 c2 Nf4 Bb8 Qh5 Qc3 Qc7 Rc8 d8B Rd2 Nd6 Qd4 Kb7 Qc4 Rb5+ Ka4 Ka6 Qb4 Bd4 Rd5 Ba7 Re5 Qc3 Rc4 Ba5 Red5 Rc5 Rf5 Rc8 Rb5 Rc5 Rd3 Rf5 c1B Ng2 Bg5 Qc2 Rdd4 Nf4 Rd2
1Bq1r2R/1B6/R1np1Nrq/bn1Pq3/1P2QN1r/R3K2n/1Q2P3/q1nB2k1 w - - 0 1 legal: proof: c4 g5 h4 gxh4 f4 b5 cxb5 Bb7 f5 Bd5 b4 Bb3 f6 exf6 axb3 f5 Bb2 f4 Ba3 Nf6 Bc1 Ng8 Kf2 Ke7 d4 Kd6 g4 Kd5 b6 Ke4 b5 c5 g5 a5 g6 h5 d5 f5 g7 h3 b7 f3 b6 c4 Qd2 h4 Rh2 a4 Qg5 c3 Qh5 c2 Be3 c1N Bf4 a3 Qg4 a2 Qg2 Qc8 Qh1 Bb4 Bd6 f4 Be5 d6 Bc3 Ba5 b4 Na6 b8Q Ne7 g8B Nc6 b7 Nc7 Be5 Nb5 Bd4 Rh5 Rg2 h2 Ba7 h3 Rg3 Rh4 Qc7 Rb8 Qg7 Ra8 Qg2 h1Q Qb2 h2 Nh3 Rb8 Bf7 Ra8 Be8 Rb8 Ke1 Ra8 Bb8 Ke3 Bc7 Rb8 Nd2 Ra8 Ne4 Rb8 Rb1 a1Q Nf6 Ra8 Bg6 Rb8 Bc2 Ra8 Qa2 Qe5 Qb2 Rb8 Ra1 Ra8 Rg4 f2+ Kd1 f3 Nf4 Rb8 Rg3 Ra8 Qg1 Rb8 Bh3 Ra8 Qe1 f1R b8R Rg1 Bd7 Rg2 Rh3 Rg7 Rb6 Rg6 Ra6 Rb8 Bb3 Ra8 Ra3 Rb8 Kc2 Ra8 Qec3+ Kf2 Kd2 Kg1 Qc4 f2 Bd1 f1Q Qe4 Qe1+ Ke3 Qf1 Bb8 Qe1 Rd3 Q1c3 Qb3 Qa1 Qb2 Qf3+ Kd2 h1N Ra3 Qfh5 Ke3 Nf2 Rh2 Nh3 Bf5 Qg8 Bc8 Qh6 Bb7 Qc8 Qb1 Qce6 Ra4 Qhh5 Ng8 Nf2 Qb2 Rhg4 Ba7 Re8 Nf6 Qc8 Ra3 Qhg5 Rh7 Qh6 Bb8 Nh3 Rh8 Rh4
kq2RbQq/npQq1N2/bP4R1/1BNP4/BK3B2/6Q1/r1P1nb2/1n1n2q1 w - - 0 1 illegal: No proof kernel
3b1Qr1/qqR1r1bB/p1R1QP2/P4BN1/N2k4/2N1rb1b/3rPn1B/6Kq w - - 0 1 illegal: No possible last move, all moves rejected
2Q2b2/3N2Q1/BrRr1nq1/2pBrP2/k4BR1/1N1r2b1/1bP2P1N/Kb2q2q w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 f5 Nh3 d5 Ng1 Nc6 Qf3 Ne5 Qd1 Nf7 gxf5 dxe4 Ba6 g4 Bf1 Ng5 hxg5 Qd7 Nc3 Qd6 Nb1 Qd8 a4 Kd7 d4 Kc6 Kd2 e5 g6 b5 a5 h5 a6 h4 a7 h3 g7 h2 Ne2 b3 Kc3 g3 Kb2 e3 Nbc3 b4 Bd2 e4 Be1 g2 Na2 Kb5 d5 c5 d6 Qf6+ Nd4+ Ka4 d7 e2 d8Q e3 Qc7 Be6 Qf7 Rd8 a8B Qg6 Qc1 Rd6 Qb1 Nf6 g8N Rh3 Bc3 e1Q Be4 e2 Rg1 h1Q Qg7 Rd3 Bd2 Bc4 Qd1 Bd5 Kb1 b2 Nc1+ Ra3 Ne7 Ra6 Bf4 Qc3 Bg3 e1B Nb5 Ka5 Qd3 Rd6 Qf3 Qe5 Bfd3 Bc3 Nd4 Bb3 Bc6 Qe1 Bf4 Bd5 Rf1 g1B Nc8 Bb3 Nb6 Bh2 Qe3 Bd5 Bdb5 Bc4 Rg1 Bd5 Rg5 Bg3 Bb7 Bg8 Qe6 Bf7 Nf3 Bd4 Na4 Rd3 Ka2 b1R Rg4 Rbb3 Qc8 Re3 B5c6 Re5 Nh2 Rd3+ Kb1 b3 Nb6+ Kb4 Nd7 b2 Ra6 Bc4 Bf3 Bg8 Rc6 Ka4 Ba6 Bf7 Bc4 Bc3 Ka2 b1R Be4 Rb3 Ba6 Bb2 Bg2 Bc4 Bd5 Rb6+ Kb1 Ba3+ Ka1 Ba2 Nb8 Bb1 Nb3 Bc1 Nd7 Bb2+
2nr1rBN/1K2Q1Bb/2b1bb2/4R1Q1/P1p3R1/2Pb1B1n/rk1N1n1P/4r1R1 w - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 hxg4 f4 a5 b4 axb4 e4 c6 e6 Ke7 f5 Kf6 e7 Qb6 Qd2 Qc7 Qd1 Qf4 e5+ Kg5 Ba3 Qc4 Bb2 Qe6 fxe6 Kf5 Bc1 Kg6 Kf2 Kf5 Ke3 b5 Kd4 d5 Kc5 Ke4 Kb6 g5 e8B f5 a3 b3 e7 d4 c3 b4 e6 b2 Ne2 f4 Bh3 g3 Re1 d3 Bf7 c5 e8Q c4 e7 g2 Qd7 g1R e8R+ Ne7 Qb7+ Nc6 Rf1 b3 Kc7 g4 Nd4 d2 Rf3 g3 Qb6 g2 Bfe6 Re1 Bd7 g1N Nc2 Bg7 Rf1 Kd3 Qa6 f3 Qa5 f2 Bhg4 Ne5 Nd4 Rf8 Ne2 Nh3 Rg1 f1B Bf3 Bf6 Rg4 Bg2 Be6 Bd7 Kb6 Nc8+ Kb7 Ra6 Bg8 Be6 Qc5 Bh1 Qe7 Ra5 Rg1 Ng4 Ra2 Ngf2 Nf4+ Ke3 Ng6 Kd3 Qe2+ Kc2 Qe3 d1R Qg5 Rd8 Nd2 Ra6 Ra1 b1B Nh8 b2 Rg4 Bg2 Ne4 Ra4 Be3 Kb3 Bd4 Bd3 Nd2+ Kc2 Rd1 b1B Be5 Kb2 Rc1 Re2 Rg1 Bh7 Bd4 Bbd3 Be5 Ra5 Bd4 Rae5 a4 Re1 Qf5 R5e2 Be5 Bg5 Bg7 Bf6 Qfc5 Ra1 Qg5 Ra2 Qec5 Re1 Qce3 Bef5 Re5 Be6 Qc5 Bh1 Qe7 Rd5 Be2 B1e4 Bf3 Rdd8+ Kc7 Bc6 Kb8 Bb5 Kb7 Bc6+
6b1/1Np2n1n/P1qb2Q1/2Pb1RN1/n3Br1K/RB5P/2nQb1Nb/b3Bk2 w - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 h5 f4 hxg4 e4 a6 e6 Ke7 f5 a5 b4 axb4 e5 Qe8 Qd2 Bb7 Qd6+ Kd8 Bc4 Kc8 Bf1 Qd8 Qd1 Ra6 e7 Re6 fxe6 Ba6 Qe2 Kb7 Qd2 Kc6 Qd1 Bc8 Kf2 Kc5 Kg3 f5 e8N g5 a4 d5 c4 b3 e7 b2 h3 b4 e6 d4 a5 b3 a6 d3 Ng7 Kd4 e8Q d2 e7 Ke3 c5 f4+ Kg2 f3+ Kg3 f2 Bd3 f1N+ Kg2 g3 Be4 g4 Qc2 Qd7 Bg6 Nf6 Qf5 Qc6+ Qd5 Rh4 Ra3 Bb7 Rh2 Nh7 Bf7 Nd7 Ra4 Ne5 Nc3 b1N Ne4 b2 Qdd7 Nc3 Ne2 b1B Be6 Nf7 Ra3 Ba2 Bb2 d1B Nf4 Be2 Bb3 Na4 Nge6 Ba8 Ng5 Bg7 Kg1 g2 Nd6 Kd2 Kf2 Ne3 Kg3 Ke1 Qdd8 g1B Ng2+ Kf1 Nb7 Nc2 Qd2 B1d4 Bc3 Bf8 Bb4 Ba1 Ba5 Nh6 Qg6 Nf7 e8B Be7 Kf4 g3+ Kf5 Bd6 Bc3 Qb5 Bc6 Rb4 Be4 Qc6 Qd3 Rc4 Be1 Rb4 Qd2 Rc4 Nh4 g2 Rh1+ g1B Ng2 Rc3 Rh2 Rf3+ Kg4 Rf5+ Kh4 Rf2 Nf4 Rf3 Rg2 Bh2 Rg4 Rf2 Ng2 Rf3 Rf4 Rf2 Rf5 Rf3 Qh5 Rf4+ Qg4 Qb6 Na5 Bd5 Nb7 Qc6 Bc4 Nh8 Nf3 Bg8 Be6 Bac4 B6d5 Bb5 Bb3 Bbc4 Kh5 Bed3 Qg6 Bcd5 Ng5 B3c4 Qf6 Nf7 Qg6 Rf3 Kg4 Be2 Kh4 Rf4+
1b3bbN/rQ2N2K/bp5b/r5N1/1P2B1bk/r5q1/PBQ2RP1/rn1R3B w - - 0 1 illegal: Other
nb2n3/2p2K2/4rrQr/2R5/Q2BnR2/PB1r4/1NPPB2n/2rQrNqk w - - 0 1 illegal: No possible last move, all moves rejected
1NQ1nB2/2B2b2/2B1q3/2nPNr2/1NbRn2K/pp5P/rP2k3/QbR2r1q w - - 0 1 legal: proof: g4 d5 f4 h5 c4 hxg4 cxd5 b5 f5 b4 f6 b3 a3 exf6 Kf2 f5 Ke1 Bb4 axb4 f4 Kf2 Ke7 e4 Kd6 d4 f5 b5 c5 b6 a5 h3 g5 b7 f3 Kg3 a4 Bc4 f2 Qd2 f1B Qe1 f4+ Kf2 f3 Kg3 f2 Bd3 c4 Be2 c3 Nf3 c2 Bd1 Qe7 Ng1 Na6 b8Q+ Nc7 Nc3 Qe6 Bf3 Nf6 Bd1 Bc4 Rh2 f1B Bf3 Rf8 Rd2 Bfd3 Na2 Ra7 Qb7 Nce8 Nb4 Ra5 Rd1 a3 Bd2 c1N Rb1 Bd7 Qc8 Bc2 Be3 Nd3 Rbc1 Bb1 Bg2 Bc6 Nf3 Nc5 Ne5 Ba4 Na6 Bab5 Nb8 Bc6 Bd2 Bb7 Bb4 Bba6 Kf2 g3+ Kf3 g4+ Kf4 Ng7 Kg5 Nge8 Kh4 Rf7 Bf3 g2 Rd2 g1Q Qd1 g3 Rd3 Ke7 d6+ Kf8 d7 Kg7 d8B Kh6 Bb6 g2 Bc7 Qh1 Rd2 g1R Bg2 Ncd7 Bbd6 Nc5 Bf8+ Ng7 Ned7 Kg6 e5 Kf5 Bc6 Kf4 Qf1+ Ke3 Qd1 Qe8 e6 Nfe4 e7 Rff1 Ne5 Bf7 Qe1+ Be2 Qd1 Qd7 e8N Qe6 Nf6 Bc4 Rd3+ Kf2 Nd5 Ne8 Nb4 Rb5 Rcc3 Ra5 Qc1 Ke2 Rd1 Bc2 Qa1 Bb1 Rcc1 Nb7 Ng4 Raf5 d5 Nbc5 Rd4 Rd1 Ne5 Rgf1 Rc3 Bbd3 Qa2 Ra1 Rc1 Bc2 Qb1 Ra2 Qa1 Bb1
r4BB1/3N4/4N3/krpbR3/Nqp2Q1B/PPP5/RbqnnQ1n/1r4Kb w - - 0 1 illegal: No proof kernel
6q1/1Bk3N1/1Rn2P1B/1qBbNp1p/rPQnb1Q1/2r4P/2Qn3q/b1K4R w - - 0 1 legal: proof: f4 f5 a4 c5 d4 b5 axb5 cxd4 e4 g6 exf5 Qb6 f6 Qd8 f5 gxf5 Kd2 e5 c4 h5 b4 d5 g4 Kd7 g5 a5 c5 d3 b6 d4 g6 e4 h3 e3+ Ke1 e2 Kd2 e1N b7 a4 c6+ Kc7 g7 a3 Qc2 a2 Qc5 Bd6 Qe5 Be6 Ba3 Ne7 g8Q Bd5 Qee6 Nf3+ Kc1 Ra4 Nd2 Be5 Ne4 Nd2 Qg4 Qg8 Nc5 Be4 Qc4 Bd5 Rb1 a1Q Bg2 Qa2 Ra1 Rh7 Qc2 Qc4 Bb2 Qb5 Nf3 Rf7 Ra2 Rf8 Ba3 Rc8 Ne6+ Kb6 c7 Ne4 Qb2 d2+ Kd1 Bc4 Rh2 Ra8 Kc2 d1B+ Kb1 d3 Qc2 d2 Ng7 Ba1 Ne5 Bf3 Rh1 d1Q+ Bc1 Qe2 Bh6 Nd2+ Kc1 Bc6 Bf3 Qh2 Ra3 Ba2 Rd3 Ra4 Rd6 Bc4 Bg2 Bd3 Bd5 Be4 Re6 Nd7 b8B Nf8 Ba7+ Kb7 Rd6 Ne6 Bd4 Ra3 Bb6 Nd4 Ba7 Rc3 Re6 Ra8 Bb6 Ka6 c8Q+ Bb7 Qc5 Bc6 Ba7 Kb7 Qc4 Kc7 Bc5 Ra4 Rd6 Ba8 Rb6 Bb7 Be6 Ba8 Bc8 Bad5 Bb7 Nec6
6Q1/nqR1n1r1/RR3P1P/q1p1N1Q1/B2BqP2/K6k/1bbp3N/1rQnr3 w - - 0 1 illegal: No proof kernel
2R5/2B3N1/q1qPBnN1/R3b3/3BQ1rn/4pNPk/P1Qp1K1n/q1b2br1 w - - 0 1 illegal: No possible last move, all moves rejected
2bQqkb1/1nb5/2rp1r2/1R3p2/BNB1R3/P1q1rnPN/1QqR2P1/B6K w - - 0 1 legal: proof: f4 a5 d4 c5 b4 cxd4 Ba3 axb4 Bc1 e5 fxe5 g5 Be3 g4 Bc1 g3 hxg3 Ra5 Nh3 Ra6 Ng1 Ra8 Kf2 h5 e4 f5 c4 b5 a3 d3 c5 d2 e6 b3 c6 b2 e7 h4 e5 h3 c7 h2 Qg4 d1Q Qh4 b4 Ra2 b3 Bb5 Qd3 Qa4 Nh6 Nd2 b1B Qc4 b2 Nb3 Na6 Qb4 Nf7 Bc4 Qc3 Nd4 Nc5 Nc6 Ra6 Nh3 Ng5 Qb6 d6 Nb4 Nb7 Re1 h1Q Re4 Qd1 Qd4 Qdb3 Kg1 Nf3+ Kh1 Rc6 Bd2 Qcc2 Bc3 Rh6 Qd2 Rf6 Qe2 Kd7 e8B+ Ke7 e6 Bh6 Re5 Kf8 Rb5 Be3 Be5 Bb6 e7+ Kg7 Bd7 Qbc3 e8R Ba5 Re6 Qe8 Bd4 Kf8 Re4 Q2b3 Be5 Bc2 Qd2 b1R+ Qc1 Bd1 Rd2 Qbc2 Bd4 Rb3 Be5 Qe3 Ba1 Qd4 Qb2 Re3 Bb3 Qdc3 Bde6 Be2 Ba4 Bc4 Bg8 Bd7 c8Q Bc7 Qd8 Bc8 Be6 Ba2 Bc4 Bb3 Bd3 Bd5 Bc4 Bg8
3Nq3/2B2Bkr/1QP1bNq1/KP1B4/p3np2/r1PN1rQ1/5bqR/nn2R3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kd2 a5 Kc3 f5 e4 Kf7 g4 d5 b4 h5 c6 h3 g5 d4+ Kc4 h4 g6+ Kg7 b6 d3 Kb5 d2 b7 f3 Ne2 f2 Nbc3 h2 Nf4 h3 Ncd5 Qe8 Nd3 Nd7 b8N Rh7 Bg2 f1R Nf6 Rf3 Qg1 d1N Bf4 Bc5 Bc7 f4 Rc1 Ba7 Qb6 Nc5 Re1 h1Q Rb1 h2 Rb2 a4 Ka5 Nc3 b5 Qg1 Ra2 h1Q Rb2 Kh6 g7 Be6 Ra2 Nb1 Rb2 Ne7 g8Q Nd5 Qg3 Nb4 e5 Qhh5 c3 Na3 Qa6 Rf2 Nc1 Nbc2 Nbd7 Qhg6 Bf3 Kg7 Ra2 Bf7 Nf8 Rd8 Be4 Rd1 Bd5 Rf3 Nd3 Ne4 Ne6+ Kh6 Qb7 Ra1 Nd8 Be6 Qb8 Bc5 Qb6 Nb1 Rb2 Ra3 Ra2 Bf5 Rb2 Na1 Rh2+ Kg7 e6 Qh8 e7 Qg2 e8B Bf2 Bef7 Qe8 Rh5 Bc8 Rh2 Be6
1r3K1b/1q1B2nQ/BQP2Q2/pRr5/3n2Rp/P3qN1P/1bb1k1N1/2rn3N w - - 0 1 legal: proof: f4 f5 b4 e5 d4 c5 bxc5 g6 e4 g5 dxe5 fxe4 f5 Qe7 Be3 Qd8 Bf4 gxf4 Ke2 Ke7 c4 b5 g4 a5 a3 h5 f6+ Ke6 c6 d5 g5 Kf5 h3 h4 c7 b4 f7 b3 e6 d4 c5 b2 c6 e3 Kf3 d3 g6 e2 e7 e1B e8N d2 g7 Nf6 g8Q Rh5 Nc3 b1Q Ne4 Qd4 Ba6 Nbd7 Nf2 Bg7 f8Q Bh8 Qdb3 d1N Qb6 Rb8 Ng7+ Ke5 Ra2 Nc5 Rb2 Bc3 Qh7 Ne8 Rb5 Bb2 Nf5 Qe3+ Kg4 f3 Qf6+ Kd5 Rh2 Kc4 Nh1 Kd3 Rg2 f2 Nf3 f1R Rg1 Bd7 c8B Nb3 Rg2 Be6 Bd7 Nd4 Rg3 Bb3 Rg1 Qe7 Ne3+ Ke2 Ng2 Bc2 Kf4 Rc5 Kg4 Rc4 Kh5 Rc5+ Kh6 Qc1+ Ne3 Qd2 Rg4 Qc3 Ng2 Qb3 Be6 Qb7 Bf5 Qe3+ Kg6 Nc7 Kf7 Ne8+ Kg8 Nf2 Kf8 Rc1 Bc8 Nd1 Bd7 Ng7+
N2RR1b1/kr5q/N1P4p/1pn1r3/8/1B2PQrR/Qbq1PqnK/1b1B2B1 w - - 0 1 legal: proof: h4 e5 d4 a5 b4 axb4 d5 g5 hxg5 e4 d6 e3 fxe3 cxd6 Nd2 d5 Nb1 d4 Kf2 d5 Kg3 Kd7 c4 Kc7 a4 Kb6 g6 f5 c5+ Ka7 c6 b5 a5 h6 g7 d3 a6 d4 Bd2 f4+ Kh2 f3 g4 b3 g5 f2 g6 b2 Be1 d2 Nf3 d3 Bh3 f1R Be6 Qg5 Nc3 b1B Nd4 Rg1 Na4 Qf5 Nb3 Rh7 Nbc5 Nd7 Bb3 Ngf6 g8Q Bg7 Nb6 Nd5 Bf2 Nf4 Qf1 Ng2 Bd1 Bb2 g7 Rb8 Na8 Rb7 Qa2 Qe4 g8B Re7 Qa3 Qh7 Qa2 Re8 Bgb3 Re5 Ne6 Nc5 Nec7 Ne1 Qg2 Be6 Qf3 Rg3 Bg1 Bf7 Qg4 Ng2 Qf3 Bc2 Rc1 Bb1 Rc4 Bg8 Rd4 Bc2 Rd8 Bb1 Bdc2 d1Q Re8 Qd2 Bd1 Qc1 Bdc2 d2 Nb6 Rg6 Kh3 d1Q Rh2 Qdd2 Bd1 Rge6 Kg3 Qcc3 Rh3 Rg6+ Kh2 Rgg5 Nd7 Qe1 Nb8 Kb6 a7 Qf2 a8R Rg4 Nba6 Rg3 Rad8 Qcc2 Na8+ Ka7
5Q1N/RqbR4/1P1N2q1/PbpN1q2/nn2P1Bk/2r2nrp/RK5B/3Q3r w - - 0 1 illegal: No possible last move
1qR3B1/r3b3/P1bqQ2N/1P2r1Q1/1Np2n2/3R4/K1PpkbRn/Q1B2n1r w - - 0 1 illegal: No proof kernel
7B/2r1RK1P/1N1bQ2p/q1k2P2/2r2N2/Pqq1pQn1/BBR3bn/3n1r1N w - - 0 1 illegal: No proof kernel
3NQ2r/2RKQ1P1/1Pn1r1n1/2b1B3/N1R1Pn1b/kpqBQr2/1q4pR/1b6 w - - 0 1 illegal: No proof kernel
qb3r1R/Qb1n2Pb/P1P5/rB1Q1pnq/1Q2N1B1/5KR1/5Np1/k1B2nr1 w - - 0 1 illegal: No proof kernel
1qN1QrN1/2R2pB1/1PP1n3/R2r3p/R4rP1/1b1B1Nbk/1K1n1Q1q/4n2q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 Ke6 c4 h5 Kc2 d5 b4 a5 c5 d3+ Kb3 d4 e5 Kf5 c6 d2 b6 d3 g3 a4+ Ka2 a3 e6 f3 g6 Kg4 b5 Ra5 e7 Na6 e8R Nc5 b7 Be6+ Qb3 d1Q b8Q d2 g7 f2 b6 Bd6 Qd5 Qc2+ Bb2 d1Q Re7 Nf6 g8N Nfe4 Bd3 f1R Nd2 Rf4 Nc4 Qh2 Nf3 Kh3 g4 Nd2 Qf5 Qe8 Qa8 Qb8 Rc7 Bd5 Rg1 Ne6 Bg7 Be5 Rg2 Qdh1 Rgg1 Rb5 Rgb1 Rc5 Rb5 Bd6 Ra5 Rb5 Nf6 Rf8 Ng8 Rc5 Qf6 Rb5 Qd4 Be5 Qf2 Bd6 Rf1 Rc5 Ka1 a2 Kb2 a1N Rc1 Nc2 Rca1 Ne1 R1a4 Qa7 Qe8 Qb8 Rb7 Bc7 Nd6 Bb3 Nc8 Rd5 Rba7 Rf6 Rb7 Bg3 Rc7 Rf4
Qqk1Nn1r/R3p1p1/2K3Rb/2qNQP1r/P7/1Bn1PRb1/6n1/2b1BrN1 w - - 0 1 illegal: No proof kernel forced: wxDB
k1BQ3b/B3pPB1/7r/1bQ2pq1/1nNNPn2/q2P1R1r/2b1n3/1qR2NK1 w - - 0 1 illegal: No proof kernel
b1q3q1/1bbp4/B1Q3nR/2pP3r/r1P1PKBn/Br1R1RNN/6Q1/k3n3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 b4 exf4 a4 b5 axb5 axb4 Kf2 Ke7 Kf3 Kd6 g4 Kc5 c4 Kd4 g6 h5 g5 f5 d3 c5 b6 h4 g7 b3 g6 b2 b7 h3 Ra3 h2 Rc3 Ne7 g8R Ra4 g7 Rh5 Nd2 b1R Qe1 Nbc6 b8Q Ne5+ Kf2 f3 Kg3 f2 Qb2 Bb7 Kf4 Qc8 Qb6 Rb3 Bh3 f1N Ba3 Ne3 Ne4 Nc2 Qg3 Ne1 Qg2 Ba8 Bg4 N7g6+ Kg3 Bd6 Rf8 Bb8 g8B Nh4 Kf4 Bc7 Qc6 Bb7 Nh3 Ba8 Rf1 h1B Rf6 Bb7 Bd5 Ba8 Rh6 Bb7 Kg3 f4+ Kh2 f3 Kg3 f2 Kf4 Ba8 Ng3 Qg8 Rc2 Bb7 Rd2 Kc3 d4 Qc8 Rd1 Kc2 Rd3 Kb1 Qf6 Ba8 Bb7 Ka1 Ba6 Qg8 Qfc6 Qc8 Rg1 f1Q+ Rf3 Qf2 Rf1 Qg1 Rd3 Bb7 Rff3 Qf2 e3 Qc2 Rc3 Qg6 Rd3 Qgg8 Qc2 Qg7 Rf1 Rab4 Qb6 Ba8 Qd2 Bhf3 Qg2 Bfb7 e4 Qgg8 d5 Ra4 Rff3 Rab4 Qd6 Ra4 Qc6 Neg6+
5n2/N1P3n1/6np/b5Rr/1N2Q1bP/1BRrQ2B/KPp4q/rNqk2qB w - - 0 1 illegal: No possible last move
3Q1r2/2P2q1P/b1B1Rr2/2bNQ3/3npK2/BB1bn1p1/2NqPRRq/1k3n2 w - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 axb5 cxd4 g4 g5 fxg5 hxg4 Kd2 f5 h4 Kf7 c4 Ke6 b4 Ke5 h5 a5 h6 d5 b6 g3 h7 d3 Ke3 f4+ Kf3 Kd4 b5 e5 b7 e4+ Kg2 d2 g6 a4 g7 a3 c5 a2 c6 Qc7 b6 Nd7 b8Q f3+ Kh3 f2 Kg4 Ba6 b7 Ndf6+ Kg5 Bc5 Nc3 Ne7 g8B Nf5 Qc2 d1B Qb2 Qf7 c7 Bc2 Kf4 Bcd3 Rh2 Ng4 Bh3 f1N Qd8 Nge3 b8R Kc4 Rg2 d4 Rb1 a1Q Nf3 Qa5 Nd5 Qd2 Rb3 Rb8 Bg4 Rb6 Ne1 Rf6 Rb8 Qg6 Bf7 Rf8 Rb6 Qh5 Qa1 Qh2 Ba3 Qa2 Rd6 Qd2 Rd1 Kb3 Qc3+ Ka2 Re6 Bdb5 Bg8 d3 Qe5 Bc4 Rc1 Bcb5 Rc3 Kb1 Bf7 Qa2 Nc2 d2 Be8 d1Q Bc6 Qd2 Bh5 Qb3 Bf7 Nd1+ Re3 Bd3 Bg8 Qe1 Rf3 Nde3 Rff2 Qd2 Ba4 Qb5 Bf7 Qd7 Be8 Qe7 Bec6 Qf7 Bb3 Nd4+
4bQ2/qkPP2pq/1b1rbrn1/3N3R/q1BQP3/3n4/Np1R1N1K/2B1Rr2 w - - 0 1 illegal: No proof kernel
2N3N1/b1pk4/1Q1r2R1/PnR1n3/P1b4K/n1r1PQqp/Rb1qrB2/B2B4 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 e5 bxa5 exf4 Kf2 b5 d4 f5 g4 h5 a4 f3 Kg3 c3 e3 c2 g6 f4+ Kh3 f2 d5 b4 d6 f3 g7 b3 Na3 b2 Ra2 b1N Nc4 h4 Nb6 Ne7 g8R Be6 Bb2 c1B Ba1 Nc8 Be2 f1R Rg6 f2 Nf3 Bc4 g5 Ra6 Nd4 Bb2 Nf5 Nc6 Nh6 N8a7 Ng8 Na3 Nc8 Kd7 Qb3 Rb1 Qb6 Ne5 Rc1 N7b5 Bd1 Rh7 Rc3 Rc1 Rc2 Bd3 Rc5 Bc4 Qb7 Rc3 Qf3 Nf7 Kg4 h3 Kg3 Rg7 Kh4 f1Q Qe4 Qff6 Qf3 Ke6 d7 Rd6 Qg3 Ne5 Qf3 Qe8 d8B Kd7 Be7 Qf5 Bf6 Qd3 Be7 Qd2 Bf6 Nd3 Be5 Qd8 Bg3 Ne5 Bf2 Qe7 Rf6 Rf7 g6 Qe8 g7 Qe6 Rf5 Qg6 Rf6 Qg1 Rg6 Rf5 Be2 Rg5 Bd1 Rg2 Nh6 Rh2 g8Q Bg7 Qgd5 Qg2 Qb7 Qg3+ Kh5 Rg2 Ng8 Bf8 Qb6 Bg7 Be1 Re2 Bf2 Ng4 Rf5 Bd4 Rc5 Ne5 Rd5 Rc2 Qb7 Qg1 Kh4 Ba7 Qb6 Rc3 Rc5 Qg3+
6qq/1rpr1P1N/b2P1n1Q/BP4b1/k1N2Rnq/nbp4B/1QRN2R1/4K3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 d4 Kd7 f4 h5 g4 e5 b4 a5 f6 a4 b6 Kc6 d5+ Kb5 d6 h3 f5 e4 b7 a3 g5 h4 g6 e3 f7 a2 g7 h2 f6 e2 Qd3 h3 Qe3 c3 Nf3 Be7 f8R Ka4 b5 Nh6 g8Q Rh7 Ba3 Ng4 Ne5 Nd7 b8N Ra7 Nd2 Rb7 Rg1 h1Q Qh6 h2 Rc1 a1N Nec4 Qd5 Bg2 h1B Bh3 Qe5 Qgg6 Bd5 Qb1 Qh5 Rf7 Qg8 Rc2 Bd8 Rg2 Be6 Ne3 Bb3 Bb4 Be7 Nec4 Rg7 Qf4 Qhh8 Ba5 Bd8 Rf8 Rh7 Qb2 Re7 f7 Ndf6 Re8 Rd7 Re6 Ne4 Qh6 Bg5 Re8 Nef6 Re4 Ra7 Rc1 Ba6 Rc2 Rb7 Rf4 Qgh7 Rc1 Rd8 Nd7 Q7g8 Nf8 Rd7 Nh7 Ne3 Rg3 Nac2+ Kf2 Na3 Rc2 e1Q+ Kf3 Qc8 Rg2 Qh4 Ke2 Neg4 Kf1 Qcg8 Ke2 Nf2 Ke1 N2g4+
4q1k1/1pn3n1/1N6/N2r2nP/1K2R1p1/RBb1qP1b/1PQNbqRB/r3Q3 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Qa5 a4 Qxa4 d3 Qa2 d4 cxd4 Kd2 Kf7 c4 e5 h4 d5 h6 a5 f3 g5 h5 a4 h7 d3 Kc3 a3 f6 d4+ Kd2 e4 c5 e3+ Ke1 e2 Kd2 Ne7 c6 Bh3 c7 g4 c8N Na6 Qa4 Qb3 Rh2 a2 Rg2 Nf5 Rh2 Bg7 Nb6 Nc7 Rg2 Rhd8 h8R Rd5 Re8 Qb5 Re7+ Kg8 Re4 Qe8 Qd1 Bh8 Qe1 Ng7 f7+ Kh7 f8Q Ra3 Qf4 Kg8 Qh2 Ra6 Na3 Ra8 Rb1 a1Q Nac4 Qa3 Ra1 Qae7 Ra3 Ra4 Rb3 Ra1 Na5 Qh4 Ra3 Qf2 Qd1 e1N+ Ne2 Nc2 Qe1 Qe3+ Kd1 d2 Nc3 Nge6 Nac4 Qg1 Rg3 Ng5 Nb1 Ne3+ Ke2 d1B+ Kd3 Qg2 Na5 Nf5 Kc4 d3 Bf4 d2 Kb4 Bd4 Bc4 Ng7 Bb3 Bc3+ Kc4 Qf1+ Qhe2 Qg1 Rg2 Qf2 Qd3 Be2 Bh2 Bd4 Kb4 d1Q Qdc3 Qc1 Qc2 Qce3 Nd2 Bc3+
1r3NnR/1pk1B1Pn/1Rp4r/1n4QB/2r3P1/P1b2bbq/RB6/K3qNQ1 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kd7 Kd2 e5 Kc2 h5 Kb2 b3 f4 c6 f5 h4 d6 h3 f6 e3 g6 e4 f7 h2 d5 e2 a3 e1R Nd2 e3 Ne2 Rh4 Ra2 Qe7 Nf4 e2 Ka1 Rh6 Ne6 Qh4 Rg1 h1Q g4 Q1h3 Bg2 Rf1 Be4 e1B Bb1 Rf4 g7 Nf6 Bg6 Rc4 Bh5 Nh7 Rf1 Qe7 Rf3 Bg3 Qg1 Qe8 Nf1 b2+ Kb1 Be7 f8R Bf6 Rb3 Bfe5 Rh8 Bd4 Nd8 Qe1 Ne6 Bf6 Nf8+ Kd8 d7 Kc7 Ra1 Bd4 Ka2 b1N Rb6 Nc3+ Kb2 Bde5 Ra2 Nb5+ Kb1 Bc3 d8B+ Kd6 Bh4 Kc7 Be7 Nd7 d6+ Kb8 Be8 Ndf6 d7 Ng8 Bg6 Kc7 Bh5 Qe3 Bb2 Rb8 Ka1 Qe5 Bg5 Qe1+ Bc1 Kd6 d8Q+ Bd7 Qe7+ Kc7 Qee3 Bf5 Qc5 Qe5 Bg5 Be4 Be7 Bf3 Qce3 Qe4 Qg5 Qe1+
1rB5/1ppPRb1N/NkP4K/N2R1Qqb/B1Qn4/5P2/1r5q/1nBn2qr w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 f5 Nh3 d5 Ng1 Bh6 gxf5 dxe4 Qf3 g4 Qd1 Bg5 hxg5 Ra4 Nh3 Ra6 Ng1 Ra8 a4 Kd7 Ke2 Kc6 f3 h5 Bb2 e5 Ke3 h4 c4 g3 d4 h3 f6 g2 c5 b3 f7 h2 f8Q Qe7 a5 Bd7 a6 Bg4 a7 Be6 g6 Qd7 g7 Bc4 Nd2 Qf5 Qe2 Ne7 Nh3 g1N Ng5 Nh3 g8B Nf2 Rg1 h1Q Re1 Rh2 d5+ Kb5 d6 Nbc6 Bg2 Rb8 a8N Qf6 Ba3 b2 Nb6 b1B Bh3 Rg2 Qf7 Qh2 Bc8 Ka6 Nb3 Nd5+ Kd2 Qg7 d7 Nc3 Ke3 Bbd3 Na5 Nb1 Bh7 Qgh6 Qh5 Bf7 Qg4 Bh5 Na4 Bc4 Bc1 Qg6 Qa2 Bf7 Qb3 Ka7 Rd1 Ka6 Rd5 Nd4 c6 Ne6 Ke2 e3 Re1 e4 Nc5+ Ka7 Qc4 Kb6 Na6 Nd1+ Kf1 Qf6 Bg6 Nd4 Nh7 Rb2 Re2 Qhf4 Kg2 Q4e5 Kh3 Qff4 Kh4 Qh2+ Qh3 Qf5 Re1 e2 Nb4 e3 Na6 Qfe5 Bc2 Qg7 Ba4 Qg8 Rg1 e1R Rgg5 e2 Rge5 Rh1 Re7 Bfg6 Kg5 e1Q Qf5 Qeg1+ Kh6 Bf7 Rde5 Q8g3 Rd5 Qg5+
3q4/P1K3B1/1p1Qr2R/BP1B1p2/k3bRN1/1q1rNb2/q2nPrQ1/b1n4R w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 exf4 c4 d5 cxd5 Ra6 b5 Ra7 Qa4 Ra8 Qb4 axb4 Kf2 Kd7 Kf3 c5 Ke4 f5+ Ke5 g5 h4 g4 a4 f3 d4 g3 d6 c4 a5 b6 d5 f2 h6 g2 a6 c3 h5 b3 h7 b2 a7 c2 h6 Bb7 Nh3 g1Q Ra3 Nf6 Rf3 Na6 Rf4 Qg8 Bd2 c1Q Bg2 f1R Nf2 Ne4 Na3 b1B Ba5 Nd2 Nc2 Nc5 Ng4 Ncb3 Nce3 Qa3 Be4 Nc1 Bf3 Kc8 d7+ Kc7 Be4 Bc6 Bf3 Rf2 d6+ Kb7 Bg2 Qgb3 Bd5 Bg7+ Ke6 Rf8 h8R Ba1 h7 Qaa2 Rh6 Be4 Rh1 Qh4 d8Q Re8+ Qe7+ Kc8 d7+ Kb7 Kd6 Rad8 Qg7 Bf3 Rf8 Re7 h8B Re5 Be6 Bce4 Rf6 Qg5 Qg6 Qh4 Bg7 Qh8 Ke7 Kc7 Qg5 Qg8 Rfh6 Qh8 Qh5 Qg8 Qh2 Qh8 Qg2 Qg8 Kf6 Kd6 Bd5 Qh8 Kf7+ Kc5 Kf6 Re6+ Kf7 Rc8 d8Q Rcc6 Qb8 Red6 Ke7 Re6+ Kd7 Rcd6+ Kc7 Qf8 Bb7 Rd3 Bd5 Qf6 Bc3 Qh4 Bcf6 Kb4 Bc3+ Ka4 Ba5 Qg5 Qd8 Qh4 Qd6 Qd8+
5RQ1/N2n1r2/NB2N2b/1P4P1/1bKb4/1q2PBRb/1pn2QpB/krb1r3 w - - 0 1 illegal: No proof kernel
3N1RN1/1n1B3R/p1rb1KB1/Pb2q1r1/2bRP1rQ/2b1Qp2/k5nP/4N1b1 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 gxh5 c5 bxc5 Qf6 Bb2 Qb6 Bc1 Qd8 c4 d6 c6 Bd7 c7 Qc8 c5 Bg4 c6 Qd8 Ba3 Bc8 Bc5 dxc5 Kf2 Ke7 Kf3 Kd6 Ke4 g5 a4 b5 d4 f5+ Kd3 Kd5 e3 g4 a5 c4+ Kc3 b4+ Kb2 g3 h6 c3+ Kb3 f3 h7 c2 Bb5 c1B Kc2 a6 Kd3 b3 Ra2 f4 Ra1 b2 Qe1 f2 Nd2 b1R Ngf3 g2 Ne4 g1B Ra3 Bd7 c8R Ne7 c7 Rg8 h8Q Rb4 Qh4 f1B+ Kc3 Ra7 Bd3 Qe8 Rb3 Ra4 Rb7 Rg5 Qe2 Rb4 Ne1 f3 Qef2 Nf5 Nf6+ Ke6 Qe2 Bb5 Ng8 Nc6 d5+ Ke5 d6 Kd5 d7 Bd6 d8N Rbg4 Qd2 Kc5 Be4 Bfc4 Ra8 Qh5 c8B Qh8+ Rg7 Rc7 Bd7 Qh5 Rh7 Bb2+ Kc2 Bc3 Qd3 Ng7 Bg6 Kb4 e4 Ka3 Qe3 Ne6 Rb8 Nf4 Rc8 Be6 Rb8 Ng2 Rc8 Ba4+ Kd3 Ka2 Rb8 Ne7 Ra8 Rc6 Rb8 Nc8 Ra8 Bd2 Kd4 Bc4 Rb8 Bab5 Ra8 Be7 Rb8 Nd6 Rc8 Nf5+ Ke5 Bf8 Rb8 Nd6+ Kf6 Nb7+ Ne6 Bfb4 Rf8 Bd6 Nd8 Bf2 Rf1 Bg1 Rf2 Ka1 Re2 B2b4 Rd2 Bc3+ Rd4 Ka2 Bgf5 Qe8 Bg6 Qe5#
2Br4/1q1R1b1P/pK1nk3/Q2b1NR1/Q1Pr4/BnBr1Nbp/QP1b4/6b1 w - - 0 1 illegal: No proof kernel
b1rnBr1n/3R1bp1/Q4b1Q/1Q2K3/RPN1B3/5b2/Pp2kP1B/qr4bN w - - 0 1 illegal: No proof kernel
2k3n1/3n1Pq1/1rNbQN2/P1b2Qb1/NpnBr1b1/P3pB1R/3b1BR1/5K2 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 h4 Kd7 f4 e5 d4 g5 h5 b5 f5 c5 d6 c4 a3 e3 h6 g3 d5 g4 h7 e4 f6 b4 f7 c3 Ne2 c2 Bg2 Qg5 Rh3 Ra6 Nd2 Qg7 Nc3 e2 Na4 Rb6 Bf3 g2 Ra2 g1B Rb2 Kd8 d7 g3 Ra2 Kc7 d8N g2 Nc6 Bg4 d6+ Kc8 Bb2 c1B Bd4 Bh2 Qb3 g1N Qe6+ Nd7 Kf2 e1B+ Kf1 e3 Ne4 Bh4 Nf6 Bg5 Rg2 Bd2 Qf5 Ne2 Qe6 Nf4 Qf5 Ng6 Qe6 Nh6 Qf5 Rg8 h8Q Ne5 Qhh7 Be7 Qe6 Re8 Qg6 Ng8 Qgf5 Kb7 Rf2 Nc4 Rg2 Nb8 d7 Bc5 d8B Bhd6 Bc7 Nd7 Bb8 Kc8 Bc7 Be7 Bg3 Bed6 Bf2 Re7 Qed5 Re5 Qde6 Re4
Q1BN1bBR/3n1p1b/1P1b4/2RbbP2/P4r1k/2rBnQ2/1q1K1p2/N3rQ2 w - - 0 1 illegal: No proof kernel
qnR1Qn2/k1nR1ppP/4B2r/n3BN2/rN3Qbn/P4P2/Q5Kb/2bB4 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 gxh5 Bb4 Bd2 Bd6 Bc1 Bf8 h4 c5 e4 b5 f3 d5 Kf2 Kd7 a3 Kc6 e6 Kb6 e5 c4 h6 b4 e7 c2 e8Q d4 h7 c3 e6 b3 h5 d3 h6 b2 e7 d2 Kg3 Ka7 Ne2 Nf6 Bh3 Bg4 Nd4 Nfd7 Qe2 d1N Kg2 Nf2 Rd1 Nd3 Bf4 c1B Be5 c2 Nc3 b1N Nd5 Nc3 Nb4 Nb5 Nf5 Nc7 Rb1 Qc8 Rb3 Qa6 Rc3 Qb7 Qe4 Qa6 Qd5 Qa5 Qa2 Nf4+ Kg3 Ng6 Kg2 Be3 Rc4 c1N Rd6 Nb3 Rc1 Nca6 Rc8 Bc1 Rd5 Nc7 Rd6 Rg8 h8Q Qd5 Qh7 Rh8 Qg8 Na5 Qh7 Nc5 Rd7 Ne6 Qg8 Kb7 Qh7 Ra6 Qg8 Ka7 h7 Qa8 Qd8 Rc6 e8B Bd6 Qh4 Nef8 Qg5 Bc5 Qf4 Bg1 Rd3 Ra6 Ba4 Bh2 Rd1 Ne7 Rd2 Rh6 Bd1 Neg6 Rd4 Nfe6 Qd8 Re8 Rd2 Nef8 Rd7 Re6 Qe7 Ra6 Qd8 Nb3 Qe7 Ra4 Qe8 Na5 Nd6 Bh5 Be6 Bg4 Nf5 Nh4+
B2R2QK/N1np3b/rr1pB3/nP1RBP2/2P1qbn1/3n4/3n2k1/RQr3N1 w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 b5 a4 Na6 axb5 Nb8 h4 gxh4 d5 Nc6 d6 cxd6 Qd4 Nb8 Qd3 Nc6 Qd1 Nb8 Kd2 Kf7 Kd3 Kf6 Kd4 h5 f4 e5+ Kd5 a5 b4 a4 c4 e4 g4 e3 b6 e2 b7 e1N b5 a3 Bd3 a2 Na3 h3 Nf3 h4 Rb1 a1N Ke4 h2 Nc2 h3 Nb4 Ra6 Nc6 Nh6 Na7 Nb3 Ra1 Na5 Ng1 Nf3 Qc2 Rb6 Qb1 Na6 b8R Nc7 Bf1 Be7 Bg2 Qe8 Bd2 Ba6 Rd8 Rg8 Be1 Bc8 Bg3 Nd2+ Kd4 Ba6 Ba8 Bb7 Ke3 Be4 g5+ Kg7 Kd4 Ng4 g6 Kh6 f6 Kh5 g7 Bh7 f7 Bg5 f8Q Rh8 f5 Bf4 g8B Qe1 Be6 Qe4+ Kc3 Kg5 Qg8+ Kh5 Bh4 Ra6 Bf6 Rb6 Be5 Kh4 Ra2 Kg3 Ra1 Qf3+ Kd4 Kg2 Ne2 Ra6 Rd1 h1N Ng1 Qb7 Kd3 h2 Kd4 Rb6 Kd3 Nf2+ Ke2 Nde4 Rd4 h1R Rd5 Kh2 Kf3 Nd3 Nh3 Rc1 Ng1 Ng3 Bd4 Kh1 Be5 Nf1 Ke4 Bg5 Kf3 Nd2+ Kg3 Be3 Kh4 Kg2 Kh5 Bf4 Qg7 Bg8+ Kg6 Bh7+ Kf7 Re8 Qg8 Rf8+ Kg7 Qc6 Rd4 Qe4 Rd5 Re8 Kh8 Rf8 Re8 Ra6 Re7 Rd8 Re8 Rb8 Rd8 Rbb6
3K1B1Q/Q1Np1p1N/3r1Q2/1N1b1b1B/R1bn4/P1nPk1P1/qbn1rb2/3R4 w - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 a6 b4 g4 b5 axb5 h3 bxc4 hxg4 c3 g5 Be7 Ba3 Bc5 Bc1 Bf8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 Kd4 e4 h5 g6 b5 e6 c5 g3 c4 e7 h4 e8N h3 e5 b4 g7 h2 e6 c2 e7 b3 Bh3 b2 Nc7 c3 e8Q Nf6 g8Q Nd5 Na6 Qa5 Qde1 Rh6 Q8e6 Nc6 Qd1 Bc5 Bg4 Ndb4 Na3 b1B Nc7 Ba6 Nh3 Re8 Bh5 Bc4 Ng5 Qa6 Rg1 h1B Nh7 Bhd5 Qh8+ Kd3 Nab5 Bf2 Qef6 Nd4+ Kg5 Re2 Ba3 c1B Qa4 c2 Rd1 Bb2 Qa5 c1N Qa4 Qe6 Qa7 Nbc2 Bc5 Ke4 d3+ Ke3 Be7 Be4 Bf8 Bf5 a3 Bba2 Rb1 Ba1 Rb4 Bb2 Ra4 Bab3 Qfg7 Na2 Qg6 Qd5 Kf6 Nc3 Ke7 Qg2 Qgg7 Rd6 Kd8 Bd5 Qg6 Bbc4 Qgf6 Qf1 Rd2 Qb1 Rd1 Qa2
KN1n3N/2P1R1B1/2BNn1r1/2r1nr2/bP3kqp/1Q4b1/p1R1QrP1/2R2r2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 b4 d5 c4 h5 f6 a4 b6 d3 f3 d2 b7 d4 f7 a3 Bd3 h3 Bc2 h2 Qf1 d1R Ne2 a2 Be4 h4 Ng3 d3 Bb2+ Qd4+ Kb5 d2 c5 Ra5+ Kb6 Kf4 Na3 e5 Qe2 Rh5 Nf5 Nh6 Nb5 Nc6 b8N Bd7 Kb7 Ng4 Nfd6 Rf1 Rc1 d1R Rc2 Rf5 Bd5 Bg7 f8R e4 Nf7 e3 Nbd6 Nge5 Re8 Rf2 Re7 Rd3 Re1 h1R Nh8 Rhf1 Rec1 Rc3 Ba1 Ra6 Bb2 Rb6+ Ka8 Nd8 c6 Rc5 c7 Ba4 Bc6 Qd1 Qc4+ Qd4 Qb3 e2 Bc3 e1N Bb2 Kg3 f4+ N1f3 Bc3 Ng5 Bb2+ Kg4 Ba1 Rf7 f5 Nge6 f6 Kf4 Bc3 Rf8 f7 Qd1 Ba1 Qg4 Bd4 Rg8 Bb2 Rbb5 f8Q+ Bf6 Qe8 Rg6 Be4 Nd7 Bc6 Be5 Ne4 Bd6 Bd4 Rf5 Bg7 Be5 Nd6 Rd5 Bb5 Rc5 Bc6 Ng5 Qd5 Kg3 Rf7 Bf4 Qe1 Ne5 Re7 Nge6 Qc4 Qf3 Qcc3 Kg4 Qce3 Bg3 Qb3 Kf4 Qe2 Qg4
1NRR3B/2PK1bn1/2pR2Q1/1Q6/2Nbq1Bb/4pP1B/bbP5/rn1k1rr1 w - - 0 1 legal: proof: e4 b5 h4 f5 d4 fxe4 a4 g5 axb5 gxh4 d5 c6 d6 Qc7 dxc7 Bg7 Rh3 Bh6 Rh1 Bf8 Kd2 Kf7 Kc3 Kg6 Kd4 Kf5 Kc5 a5 b4 d5 b6 h5 b7 e5+ Kb6 d4 b5 a4 g3 d3 Bd2 h3 Qe2 a3 Rh2 e3 g4+ Ke4 g5 h4 g6 a2 g7 Nh6 g8B Ba3 Rh1 h2 Bb3 h3 Bc1 d2 Qe1 d1R Qa5 e2 Ba4 e1B Nf3 Rg8 Bb3 Bb2 Kc5 Rg1 b6 Nf5 Be6 Ng7 Bg4 Be6 Na3 Bf7 Qb5 Ra7 Bd2 Nd7+ Kd6 Nc5 b8R Na4 b7 Nc3 Rd8 Nb1 b8Q Ra4 Bg2 Rf1 Rg1 h1Q Kd7 h2 B2h3 Qg2 Qa7 h1B Nc4 Bd4 Bb4 Kf4 Qaa6 e4 Bc3 e3 Nfe5 Qe4 Qaa5 Bg2 Qab4 Ra3 Qd6 Bf3 Qg6 Be2 Nb2 Bec4 f3 Bh4 Rh1 Kg3 Rh2 Rg1 Rd2 Rdf1 Rd1 Bcd5 Nbc4 Kf2 Rd3 Ke2 Rc8 Nd2 Rd1 a1B Bb2 Nb1 Bc3 Bg8 Bb2 Bdf7 Bc3 Ba7 Rd6 Bb2 Nd3 Nh5 Bh8 Bad4 Nb4 Rf2 Re6 Ng7 Na6 Ra1 Ree8 Bb6 Nd6+ Bc4 Rf8 Bf7 Nb8 Rff1 Rfd8 Ba7 Rd3 Ba2 Nc4 Bb6 Rd5 B6d4 Rd6 Kd1
r1N2Kn1/BP1b3b/k6N/1NQp2p1/b1rP3R/b3r3/P1n2RbQ/1Bq2B2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 exf4 b4 b5 cxb5 axb4 Kf2 f5 Kf3 g5 e4 c5 h4 d5 h6 Kd7 e5 Kc7 h7 Kb7 h5 c4 b6 b3 h6 c3 e6 c2 e7 b2 e8B Be6 Rh4 Qe7 Bg6 Qd8 Nh3 Bb4 Nc3 b1B Nf2 Qc8 Nfe4 Qc6 Nb5 Bd7 Ned6+ Ka6 b7 Qc7 Nc8 Nc6 d4 Be7 Ba3 c1R Qc2 Nb4 Qc5 Nc2 Bb4 Bf8 Ba5 Qc6 Bb6 Re1 Ba7 Re3+ Kg2 f3+ Kh3 f4+ Bf5 f2+ Kg4 f3 Kh5 Be6 Kg6 Bd7+ Kf7 Bd6 Qc4 Ba3 Qc5 Qc7 Kf8 Qc6 Bg2 f1B Bgh3 Bc4 Bf1 f2 Bg6 Ne1 Be4 Bbd3 Rd1 Bc2 Rd2 Ba4 Bb1 Bd3 Bg2 f1B Rf2 Bfe2 Bh3 Nc2 Bf1 Ne7+ Kf7 Re8 h8Q Bf3 h7 Ng8 Kg7 R8e7+ Kf8 Bg2 Qe5 Re6 h8N Bh7 Nf7 Rc3 Qb8 Rc4 Qh2 Qc7 Nh6 Qf4+ Kg7 Qc1 Kf8 Re3
n1rB1kn1/1PR3nR/bQp5/1QP1rN2/K1R1bN2/1P5p/1N2n2n/1B1r2q1 w - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ng8 d4 e5 Kd2 a5 Kc3 f5 Kb3 h5 c4 a4+ Kb4 a3 g7 h4 g6 f3 b3 f2 d5 c6 c5 f4 b6 a2 d6 e3 b7 e4 Bh3 f1B Na3 f3 Nb1 e2 Ba3 e1R Ne2 f2 Nc1 e3 Qe2 Rd1 Qb5 e2 Bf5 e1N Bb2 Nf3 Ne2 Na6+ Ka4 Ng5 Nd2 Ne6 Bf6 Rh5 Bb1 Re5 Nf4 Qd7 Bd8 Nac7+ Qa5 Rb8 Qb5 Na8 Nc4 Bd3 Rh3 f1N Nb2 Qe7 Rh2 Qg5 Rc2 Qg1 Rc4 Ne7 g8N h3 d7+ Kf8 Nh6 Nh2 Nf5 Ng8 g7+ Kf7 Bc2 Bf1 Rc1 a1N Bb1 Nc2 Rb4 Ncd4 Rcc4 Nh6 g8R Ne2 Rg5 Kf8 Rg7 Ng8 Rh7 Ng7 Re4 Red5 Re7 Re5 Rc4 Bg2 Bb6 Be4 d8Q+ Ne8 Rb4 Be6 Rc4 Rc8 Ba5 B6d5 Qdb6 Ng7 Rc7 Bd3 Be1 Bf3 Bh4 Bfe4 Bd8 Re8 Qb4 Re1 Rc1 Ba6 Q4b5 Rd1 Rc4 Re5
1nQ2b2/1p6/2Qb3r/qrrQPN1n/1BnN1kB1/1P4pn/3R1P1n/3B2RK w - - 0 1 illegal: No proof kernel
nn1K1Bb1/PNb2PRQ/2k2prQ/1b6/6Bp/Pn6/b3QNRr/1b3Bq1 w - - 0 1 illegal: No proof kernel
4r2r/p1N2RpQ/1nB3QP/4n1BP/3Kn1P1/N1n1qbk1/R4R2/1nbQ1b2 w - - 0 1 illegal: No proof kernel
1Bkr1r2/p2RpQ1Q/1P3q2/bR1r1nrP/1N3PbN/3Q4/r1K3B1/1bn3B1 w - - 0 1 illegal: No possible last move, all moves rejected
3r4/5KNb/2RnB3/QQn3b1/pbr3P1/1R1nBkP1/PrQp2Nb/5q1R w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 g5 h3 g4 hxg4 Qb6 Ke2 Qd6 Kf3 Qxd2 Kg3 fxe4 Kh4 Kf7 Kh5 Ke6 f4 Kd5 c6 a5 c3 e5 f5 b5 c7 b4 f6 e3 c4+ Ke4 c5 d5 f7 a4 c6 b3 Rh2 b2 Bc4 d4 Qf1 d3 Ne2 Bb4 f8R Bf5 c8Q Qd1 c7 d2 Rf6 Na6 Qg1 Nh6 Qb8 Nc5 c8Q Qf1 Rh4 Rd8 Qf2 Nf7 Ra6 Nd6 Kg5 h5 Kf6 Bh7 Nf4 e2 Rh3 e1B Be6 h4 Na3 b1R Qb5 Rb2 Rb3 h3 Nc4 h2 Rc6 h1N Ne3 Ra6 Qfe2 Nf2 Qa5 Nfd3 Kg7 Rb6 Nh5 Bh4 g3 Bg5 Qc7 Rc2 Rab1 Rc4 Bb2 Rb7 Bd4 Rb5 Qe1 Kf3 Ng2 e4 Be3 Rb6 Ra1 Rbb8 Qb1 Rb6 Bg1 e3 Qc8 e2 Be3 e1B Qc2 Rb7+ Qd7 Bf2 Re1 Nde4 Kf7 Bg1 Ng7 Bh2 Rd1 Qe2 Rg1 Qf1 Rh1 Rbb8 Qe8 Nd6+ Kf8 Bf6 Rc7 Re4 Ra3 Bbc3 Rc8 Rb2 Rb3 Rc4 Rc7 Ndb7 Kf7 Bb4 Qeb5 Bg5 Rc6 Nd6+
rB1Q4/nR2Rq1N/N5KP/1P2r2n/bp2B1kp/1QP2nb1/1br2R2/Qn6 w - - 0 1 illegal: No proof kernel
4nr2/b1BBn1rb/1nK4P/1P3Rpb/1r3n1N/2PN1p1N/Q1qR4/5kBQ w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 h4 f5+ Ke5 a5 e4+ d3 h6 d5 h7 g5 c3 a4 h5 d4 b6 f3 b7 f2 b5 a3 h6 f4 Qd2 a2 Rh2 Bf5 Rh1 Nf6 Bg2 f1N Rh5 Ra7 Ba3 Bc5 Nh3 Ne8 Qe1 Nd2 Qh1 Rf8 h8N Bh7 Ng6 Nc6+ Ke6 Qc7 b8B Ne7 e5 Ra4 Bc6 Ba7 Bd6 Rb4 Bc5 Qa5 Kd7 Qa4 e6 Qc2 Be5 Nf3 Qh2 d2 Nh4 Kd3 Qh1 Ke2 Na3 d1N Bc7 d3 Nc4 d2 Bg1 Ne1 Nb2 Ne3 Nd3 N1g2 Rf1 d1B Rf3 a1R Rf1 Nc8 e7 Nf5 Rf3 Ra6 Rf1 Rb6 Rf3 Rb7 Rf1 Neg7 e8Q+ Nfe7 Qf7 Nb6+ Kd6 Ne8+ Kc5 Rb8 Bd7 Rg8 Qa2 Rg7 Rf3 Rd8 Re3+ Kf1 Re5 Bg4 Rd5 f3 Rf5 Ned5 Kc6 Ngf4 Ng6 Rb8 Rh4 Bh5 Rg4 Rb3 Nh4 Rb4 Rg2 Rd8 Rd2 Ne7+ Kc5 Nf6 Kd6 Ra8 Kc5 Rf8 Kd6 Ne8+ Kc5 Ned5 Kc6 Ne7+
b1n2RQ1/N1bB2N1/4RP2/p2N1r2/3rr1qP/2Bk3b/pP2n2K/nRb1Q3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 bxa4 c4 Kf7 h4 Kf6 f4 e5 Kf2 a5 Kg2 g5 c5 d5 c6 a3 c7 g4 h6 e4 h7 a2 Qd2 d3 Qf2 d2 Be2 d1R Ba6 e3 Nf3 d4 Kh2 d3 Nc3 d2 Na4 e2 Qb6+ Nc6 Qb8 e1B Nc5 g3+ Kg1 g2 Qb4 Nd4 Kh2 g1N Na4 Nc2 Nb6 Bd6 Nd4 Ne2 Bb5 Qd7 Ne6 Ne7 Ng7 Rf8 Rb1 Na1 h8Q Bb7 c8N Bc7 Na7 Rae8 Qe4 Ba8 Qg8 Nc8 Ba4 Bf2 Re1 Be3 Qh1 Qe6 Bd7 Qe4 Qg1 Qf3 Qh1 Re4 Qg1 Qg4 Qg3 Ke7 f6+ Kd6 f5+ Kc5 f7 Kd4 Nd5 Kd3 Qe5 Re8 Qg3 R8e5 f6 Rf5 f8R Rd4 Rf1 Re1 Qe5 d1B Bd2 Bc2 Bc3 Bc1 Rf4 Ba4 Re4 Bb5 Qd6 Bc4 Re6 Ba6 Qe5 B6b7 Ne7 Bg2 Nd5 Bh3 Rf7 Ref1 Rf8 R1f4 Qe3+ Kc2 Qf2 Kd3 Qe1 Rfe4+
K1b3B1/b2R1nB1/r1QrPpk1/1PNnQp2/N5r1/B1q1nPn1/bN6/5R2 w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 Qc2 Ba6 Qd3 Bc8 Qf5 exf5 d4 c5 Kd2 h5 Kd3 a5 Kc4 a4 g4 a3 b4 h3 e4 h4 d6 h2 Kd5 c4 g5 a2 d7+ Ke7 g6 Kf6 f3 c3 b6 h3 b7 c2 b5 Qb6 d8B+ Kg7 e5 Ra6 Nc3 Qf6 Ba3 c1R Na4 Rh6 Ne2 Bc5 Nf4 Bf8 Bc4 Be7 Rf1 h1B Nd3 h2 Ndb2 Nc6 b8Q Bc5 Qc7 Re1 Rd1 a1N Be7 Nd8 Qc6 Ba7 Bf8+ Kh8 g7+ Kh7 Rd3 Bg2 Bb3 h1N Rd2 Be6+ Kd6 Bh3 Kc7 Nc2 d5 Ne3 d6 Ng3 d7 Ne7 g8N Re2 Bg7 Kg6 Rdd1 N7d5+ Kc8 Bc5 Kb8 Ba7+ Ka8 Rg2 Ba2 Bg4 Bc4 Bh5 Rd3 Nb7 d8Q Nd6 Qb8 Bc8 Rd2 Ne2 Ba2 Rg4 Rdd1 Ng3 Qbc7 Qh4 Nf6 Qh2 Rd3 Qc2 Ne4 Qc3 Rd2 f6 Rdd1 Nf7 Nec5 Rh8 Bb3 Re8 Ba2 Re6 Rd3 Nb4 Rd7 Rd6 Be6 Nbd5 Qb8 Nh6 Bg8 Nf7 Qbb6 Kg5 Ncd3 Nd8 Bc5 Ne7 Ba3 Bf7 Qd4 Kg6 Ndc5 Ba2 e6 N7d5 Qe5 Nf7
1b6/B5RP/b1RBNQ1Q/bn1n1p2/1NP1p3/2r1Pb1n/4B1q1/k1K1rR1r w - - 0 1 illegal: No possible last move
3rb3/1r3P1n/Q1Rp1B1R/n2q2N1/5N1P/5Pbp/Bb1K3k/n1Q1QrNb w - - 0 1 illegal: No proof kernel
K6b/rNr1RpPQ/2n2p2/2b1R1Q1/5Pb1/nr1qQNnB/2kP4/3r1B1N w - - 0 1 illegal: No possible last move, all moves rejected
1Bb2nr1/1r1p1n2/3qRr1k/3PbQR1/Q2P1n1n/1PR2KBp/Q1N3Nb/8 w - - 0 1 illegal: No proof kernel
R3b1Nk/b2pP3/1q2r1BB/2r2RQ1/2NP1rbn/2p2R2/nPQr4/3K1Q1n w - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 b5 gxh5 Nc6 Kf2 Nb4 a5 Nc2 a6 Bxa6 cxb5 Bc8 d4 c5 h4 g5 e4 a5 Ke2 f5 e5 Kf7 h6 g4 h7 Kg7 h5 c4 e6 f3+ Kd2 a4 b6 g3 b7 f4 b8R c3+ Kd3 g2 Rh4 a3 Ne2 g1N Bh3 a2 Qf1 f2 Rb3 f3 Rb5 Ra5 Ng3 Ne2 Rd5 Bb7 Qg2 f1R Nd2 f2 Qe4 Ne7 Rf4 Nf5 Nc4 Bc5 e7 Nh4 Bf5 Rf8 Qe5+ Rf6 Ne4 Ng3 Bd2 Nh1 Ke2 Nb4 h6+ Kf7 Bc1 Re6 Nf6 Bb6 Rb5 Be4 Ng8 Bc2 Rd5 Rc5 Qe4 Rd1 h8Q Qc7 Qhe5 f1B+ Ke3 Bcd3 h7 Bh3 Bd2 Bb1 Ke2 Bg4+ Qf3 Qc6 Qe4 Qc7 h8Q Bc2 Qh5+ Kg7 Bh7 Kh8 Rf6 Qa7 Bh6 Rd2+ Ke1 Qb8 Qg5 Qd6 Rf8 Qc6 Ra8 Ba7 Rc1 a1R Qee2 Bg6 Rf5 Be8 Bg6 Rd3 Qfe4 Rf3 Q4c2 Na2 Rb1 Rf4 Rd1 Nc1 Rd3 Qb6 Rf3 Na2+ Qb1 Rf6 Qc2 Rd6 Ke2 Rdc6 Qg1 Rd1 Qf1 Rd2+ Ke1 Re2+ Kd1 Rce6 Na3 Rf2 Nc4 Rd2+
B4b2/kPrp1NR1/2q1n3/n2r1PP1/2br1BRQ/3Q4/1QBp2r1/3NnK1b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 h5 f4 e5 b4 a5 g4 e4 f6 h3 g5 e3 f5 e2 b6 d3 b7 h4 c5 a4 b5 d2+ Kf2 e1N c6 a3 b6 a2 c7 h2 Nc3 h3 Qc2 Nh6 Qd3 Nc6 b8Q Ra7 Bb2 Ba6 c8B Bc4 Nf3 Qc7 f7+ Kd8 Ne5 Na5 Nd1 Qc6 Rg1 h1R Rg4 h2 Bb7+ Qc8 Bd4 Rg1 Ba8 h1B Be3 Rc7 Bf4 Rh7 Be2 Rg2+ Kf1 Rh8 Rb1 a1R b7 Ra4 Rb6 Rg8 Re6 Rg6 Re7 Rd6 Qa7 Rb4 Qad4 Rb5 Q4c3 Rd4 Qb2 Rbd5 Bf3 Rc6 Be4 Kc7 Re8 Kb8 Re7 Bg7 f8Q Ka7 Qf7 Rc7 Qh5 Bf8 Rg7 Nf7 Qh4 Nd8 Nf7 Ne6 Qe2 Qe8 Bc2 Qe7 Qd3 Qc5 Qb4 Qd6 Qb2 Qc6
3b1r2/RpQ1Nnr1/3PQ1n1/4bBBk/NQ3P2/1p6/1P2K1Rq/Nnrbb3 w - - 0 1 legal: proof: e4 a5 h4 g5 c4 gxh4 Qb3 d5 cxd5 f5 Qb4 axb4 exf5 Qd7 Nc3 Qd6 Nb1 Qd8 g4 Kf7 d4 h5 a4 e5 a5 c5 g5 h3 d6 h4 a6 b3 d7 h2 a7 e4 d5 c4 f6 Kg6 f3 h3 f7 c3 d6 e3 Ra3 c2 Nc3 e2 Nd1 Nh6 Ra6 Nc6 Nc3 Rh7 Na4 Kh5 g6 Be7 f8N Nf7 g7 Nce5 g8Q Rg7 Bg5 c1B Ng6 Bf4 Kf2 e1B+ Ke2 Qb6 d8Q Bf5 Qc7 Bd8 Ne7 Bc2 Ra5 Rc8 a8Q Ng6 Ra7 Be5 f4 Qd4 Nf3 Qg1 Nd4 Qg3 Rg1 h1R Nb6 h2 Rg2 Rg1 Na4 h1N Qe8 Nf2 Qed7 Qh2 Qe6 Bf5 Nc2 Nd1 Na1 Bc2 Qcc4 Rh1 Qb4 Rg1 Qb8 Nc3+ Kf3 Nb1 Qc7 Bf2 Bd3 Rc1 Ke2 Be1 Qcc4 Ba5 Qc7 Rf8 Bf5 Bb6 Qc6 Bd8 Qc7 Bd1+
2bb2R1/PN1nP1BB/1b2R3/2n4n/3pB1p1/QQ1N2q1/rP3r2/1kbrKR2 w - - 0 1 illegal: No proof kernel
1n5r/P1r1P1Nb/1bRn1pQ1/1pr3n1/NkBN1Q2/q3K3/1P2QB2/b1R4n w - - 0 1 illegal: No proof kernel
1NR3Qn/3n3N/5B2/2PqnnrK/1b3P2/1p2Bp2/1Nr2q1P/QBRb1n1k w - - 0 1 illegal: No proof kernel
Nr6/q1rrb1Q1/2nB4/1PK1p1N1/2QBQ1p1/BrRbPnP1/R2rq1k1/8 w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 a4 h6 axb5 gxf4 e3 h5 Be2 Kd7 Bf3 Ke8 Bg4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 e5 d4 a5 d6 f5 b6 c5 d5 f3 h5 a4 b7 f4 g3 f2 b5 f1Q+ Ne2 Kf3 d7 a3 h6 a2 h7 Ne7 d6 Kg2 Na3 f3 Qb3 f2 Qd3 Nec6 Nd4 Qa5 d8Q Be7 d7 Ra7 Qc7 Qe2 d8B f1R Ne6 Nd4 Ng5 Nbc6 b8B Rf2 Rd1 Rg8 h8Q Bf5 Qg7 Nf3 Bb2 Rb7 Bd4 Qa7 Rdc1 Rh8 Kd5 c4 Qe4 c3 Nc4 c2 Nb6 Bh7 Qc8 Rd7+ Bd6 Rg8 Na8 Rf8 Rd1 c1R Rd3 Rc3 Bc7 Rb3 Rc3 Bf5 Ba5 Rc7 Qe6 Rb8 Bab4 Rd7 Ba3 Bg6 Rac1 a1R R1c2 Rc1 Ra2 Rc2 Bb6 Rd2+ Kc5 Rf1 Q6d5 Rh1 Qec4 Bd3 Qde4 Rhh8 Kd5 Rhc8 Bd4 Qa6 Kc5 Rcc7 Qa4 Qb7 Qc4 Qa7+
r5R1/3n4/1p1qP3/NR1pnN1N/n3n1Bb/K1B5/1PQ2Pq1/1bQ1Bnkr w - - 0 1 illegal: No proof kernel
Q2R2Nq/1nQ2Pk1/2rBP3/1pbBR2q/1q2nB2/r1b2q1N/1P3p2/1K1Q3q w - - 0 1 illegal: No proof kernel
1N2bb2/3R1p2/p3Q3/3B1rPq/kbqBBN1P/n5br/KR3Q1P/1Q2n1b1 w - - 0 1 illegal: No proof kernel
3Qr3/n2P3b/1K1QR2N/b1NqpQnr/7b/2kBB2b/2PN1Pp1/2R2q1b w - - 0 1 illegal: No proof kernel
1RNk4/bP5K/R2rq2n/2qp1P1n/1np1b3/B2n1P1Q/1Q3Nn1/rQB2B2 w - - 0 1 illegal: No proof kernel
5B1R/bp2N2r/4QP2/1r1RbB1p/P3b1K1/qR1Q4/nP3b1N/kBq1nb2 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 g5 h4 gxh4 Qe2 f5 Qa6 fxe4 Qxa5 Bd7 Qa7 Bc8 Ke2 Kd7 a4 Kd6 g4 e5 f4 c5 d4 c4 g5 c3 f5 h3 g6 h6 g7 c2 f6 h2 Bd2 c1Q Ra3 e3 Kf3 e2 Rc3 e1B Bh3 e4+ Kf4 e3 Rd3 e2 Bd7 Rh7 Na3 Bf2 Kg4 e1B Bf5 Nd7 Nf3 Qe7 Nc2 Nc5 Bb4 Bc3 Rhd1 h1B Nh2 Be4 Ne3 Bd7 Ba3 Bb5 Bb4 Rc8 Qb6+ Rc6 Ba3 Bc4 Qb3 Rb6 Qa2 Rb5 R1d2 Ba5 Rb3 Bf1 Rd1 Bb6 Rdd3 Kc7 d6+ Kc6 d7 Ba7 d8Q Qd6 Rd1 Nd3 Nd5 Ne7 g8B Ne1 Bf7 Qb4 B7g6 Qbc3 Bd6 Qb4 Rdd3 Qa3 Bc5 Ng8 Rd1 Bd6 Rd2 Be5 Bf8 Ne7 Rd1 Beg2 Bb1 Be4 Bf5 Ng6 Rdd3 Nf4 Rd1 Nfd3 Rd2 Rc7 Ne7+ Kb6 d5 Ka5 d6 Nb4 Qc8 Rd7 Rd5 Rc7 Qa1 Na2 Qe6 Rd7 Ng8 Rh7 d7 Bab8 Ne7 Bba7 Rf3 Kb4 d8R Kc4 Rb3 Bab6 Bg7 Bbd4 Rh8 Ba7 Rh3 Kb4 Bf8 Kc4 Bd3+ Kb3 Qb1 Nc3 Qc2+ Ka2 Qe2 Ka1 Bb1 Na2 Rb3 Bad4 Qf3 Ba7 Qd3 h5#
R1b2Bk1/Qn2n3/3Q1R2/Nq1q3r/2bpB3/nQP2p1P/1Nn2P1r/R1b2K2 w - - 0 1 illegal: No possible last move
B4b2/1rQRR3/4B1k1/3n2n1/p4P2/QqqP1Qp1/qBN2rNP/n1nb3K w - - 0 1 illegal: No proof kernel
QQ5n/KNnq4/5k2/BB1q1Nqp/2bPr1P1/N3qnb1/P1p3r1/R2Q3R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 b5 Kd4 e5+ Kd3 h5 f4 c5 g3 h3 f6 h2 f5 b3 d6 e4+ Ke3 c4 Kd4 c3 Kc5 e3 d4 b4 Bg2 e2 Bc6 e1Q Bb7 c2 Bb2 Qe3 Nd2 Ne7 d7 Na6+ Kb5 Rg8 Ndf3 Nc7+ Kb6 Ng6 Bc3 b2 Nd2 b1Q Nc4 b3 Ba5 b2 Nf3 Bd6 Nh4 Nh8 Ba6 Qbc1 Bb5 b1N Na3 Rb8+ Ka7 Nd2 Bd3 Re8 Bb5 Nf3 g4 Bg3 Ng2 Ba6 Nh4 Kg8 f7+ Kg7 f8N Kf6 Ne6 Rc8 Nc5 Re4 Nb7 Qe7 d8Q Qg5 Rf1 Qce3 Rh1 Rb8 Qd5 Rf8 Qd8 Re8 Qb8 Qd7 Qa8 Kf7 f6 R8e6 Rf1 h1Q Nf5 Kg6 f7 Kf6 Re1 Re7 f8Q+ Rf7 Ba4 Bc4 Bb5 Ng1 Nbd6 Re8 Qaf3 Kg6 Qa8 Qd5 Nb7 Re4 Nh6 Rf2 Qfb8 Rg2 Nf5 Nf3 Rh1 Kf6
1qnqK1Q1/nB1BQ3/1rRrN3/k2PbpR1/1p1r4/2PqB3/1q1P4/3b1NR1 w - - 0 1 illegal: No proof kernel
BR2b2K/B1n3q1/bNBn4/q1PpR2P/1k1bQ1p1/2N1QQ2/rP6/4rqb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 g5 c4 f5 h4 a5 e4 a4 b6 d6 e6 a3 e5 d3 h5 a2 b7 d2 Ne2 Nh6 Na3 Nf7 Nc3 Qa5 Qf3 d1B Be3 Ba4 Bg2 Na6 b8Q Be8 Qbb7+ Nc7 Qbe4 Bg7 Rhe1 Ba6 Ba7 Rg8 Rad1 a1Q Rd5 Qd1 Rb5 Qd4 Rb8 Rf8 c5 f4+ Kh2 g3+ Kh3 g4+ Kh4 Rh8 Bh1 g2 Nc4 g1B Nb6 Rf8 Nc8+ Kd8 e7+ Kd7 Nb6+ Ke6 Nbd5 Kd7 e6+ Kc6 Re2 Bh8 Re3 Qg7 Bg2 Bd7 e8Q Rg8 Qe7 Be8 Qg5 Rf8 e7 Rg8 Qf1 f3 Nb6+ Nd5 Re1 f2 Qge3 Rf8 Qfe2 f1Q Q2f3 Rg8 Na2 Kb5 Re2 Bc6 e8B Nc7 Bd7 Re8 Bh1 Qd4 Nc3+ Kb4 Re1 Ba4 Bc6 Re6 Bb7 Be8 Bc6 Ne5 Kg5 Nc4 Bg2 Qg7+ Kf5 Qh7+ Kg5 Bd4 Re2 Re5+ Kf6 Rd5+ Qe5 Bg6 Bb7 Qa3 Qff2 Be8 Qg5 Be3 Qff4 Rd4 Bgc6 d5 Qf3 Rd1 Qef5 Bd4+ Re5 Qg8 Q5e4 Bb5 Qd2 Nd6 Qde3 Qe6+ Kg7 Qe7+ Kh8 Re1 Rd8 Qg5 Bb8 Ra4 Rc8 Ba6 Ba8 Ra5 Ba7 Qa4 Qf7 Qab5 Rd8 Ra2 Qff3 Qa5 Rb8 Qg7+
4KB1N/2QB1bq1/r4knR/Pr1p4/1b2Q2r/1N5q/qp1P1Prn/1RN1R3 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 b4 axb4 c3 bxc3 gxh5 Ra4 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 Kf3 d5 Kf4 b5 Ke5 g5 h4 c5 a4 c4 h6 b4 f6 b3 a5 g4 h7 c2 h5 c3 h6 g3 Bc4 g2 Rh3 Qc7+ Kd4 e5+ Ke3 e4 Kd4 e3 Qf3 e2 Na3 e1Q Nb5 Ra6 Rh1 Ne7 Ba3 c1Q Rb1 c2 Qe4 b2 Ne2 Nbc6+ Kc5 g1R Nbd4 Rg2 Bb5 Be6 Nb3 Qf1 Ba4 Qcd1 Nec1 Nd4+ Bc6 Qg3 Bd7 Qg7 Bb4 Qd3 Re1 Qh3 Ba3 Nf3 Bb4 Ra8 Kd6 Ra6+ Kc7 Ng6 Kd8 Nh2 Be7 Rg8 h8R Qe2 h7 Qc4 Qf4 Rg4 Qc7 Rh4 Ba3 Qa4 Bc5 Qa2 Ba3 Ne5 Be7 Kg6 f7 Kf5 Ke8 Ng6 Ba3 Bb4+ f8Q+ Kg5 Kd8 Bf7 Qe8 Bc3 Bc5 Kf6 Bf8 Bb4 Qe4 Be6 Ne2 c1R Ke8 Rc5 Nec1 Rb5 Qe2 Nf4 Qe3 Qg1 Qe4 Rg2 Rg8 Ng6 h8N Qf1 Rg7 Qfd3 Re7 Qdg3 Rh7 Qg5 Nc5 Qh6 N5b3 Qg7 Rh6 Bf7+
R2rNKqk/qbb5/rqB1R3/P1p5/3qp3/5Q1r/1PPRB1NQ/n1Q2n2 w - - 0 1 illegal: No proof kernel
3b2QN/r1n1Q1r1/3r3P/1R1n4/pBR2P1n/p1Qq1bnk/1q1P3B/3BK2N w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 h5 a4 bxa4 g4 hxg4 b4 Kf7 h4 Kf6 f4 c5 b5 g5 b6 a5 h5 e5 b7 c4 h6 c3 d6 g3 d7 a3 Be2 a4 Rh4 g4 Bc4 g2 Qc2 g3 Be6 e4 Bd5 e3 Bf7 e2 Bh5 Ra7 Nf3 g1N Ne5 g2 Bb2 Na6 b8Q Ne7 Ng6 Nc7 Rh2 Rh7 Nh8 Rg7 Bf3 Bb7 Rh5 Bd5 Qbb3 Bc6 Qg8 Ned5 Rg5 Be7 Ra2 Qc8 d8Q Qa6 Qc1 Qd3 Ba1 Nh3 Rc2 g1N Qde8 Nf2 Qb2 Qd4 Rc1 c2 Nc3 Nh1 Nd1 Bb7 Nf2 Ng3 Nh1 Bd8 Qc3 Ba8 Rb1 Bb7 Rb4 Bc6 Qee3 Ba8 Rc4 c1Q+ Kf2 e1R Bd1 Qb2 Rh5 Qe5 Qc5 Re4 Q5e3 Qc2 Ke1 Qd3 Rg5 Rd4 Rh5 Ke7 f6+ Kd6 f7 Ke6 f8B+ Kf6 Kf2 Nf3 Bb4 Nh4 Ke1 Bb7 Rg5 Ba8 Rg6+ Kf5 Rb6 Qf6 Rb5 Qb6 Qe7 Qb7 Bc2 Kg4 Bd1+ Kh3 Ra5 Qb8 Bd6 Qb4 Qc2 Nb6 Rb5 Rd5 Bd4 Bc6 Qc3 Qb2 Bb4 Rd6 Bg1 Bf3 Bh2 Nbd5
3r4/1b1Kb2Q/1BRQ2np/Q4rP1/3n1nP1/1qN1N3/BpRP1bq1/2N1n1k1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 a4 f5+ Kd3 Ke5 Kc4 Ke4 Kb5 b3 g4 h6 d6 b2 a5 f3 a6 f2 d7 f4 e3 f3 a7 c4 Qe1 c3 Rh4 c2 Be2 f1N Bc4 f2 Ra6 Qb6+ Ka4 Ng3 d8Q f1Q Qd7 Ne7 Rh1 Nbc6 Ba2 Qg2 Qd6 Nh5 Ne2 Kf3 e4 Nf4 e5 Nd4 e6 Neg6 Nbc3 b1N e7 Na3 e8N Be7 Nf6 Rd8 Bb2 c1B Nfd5 Nac2 Ne3 Qb3+ Ka5 b5 Kb6 b4 Kc7 Rb8 a8Q+ Bb7 Rc6 Rf8 Qg1 Ne1 Qa5 Rf5 Kd7 Re8 Ba3 Bb2 Nc1 Rh8 Qh2 Kf2 Qh5 Ba1 Rh3 Kg1 Rg3 Nh4 Qf7 Nhg6 Qh7 Rd8+ Kc7 Qb2 Rh3 b3 Bc5 Qc2 Bb6 Bb2 Rg3 Ba3 Rf3 b2 Rh3 Bc5 Rg3 Ra8 Kd7 Qb3 Rf3 Nh3 Rf4 Rg8 Re4 Nhf4 Re6 Rgf8 Rf6 Rh8 Rf8 Rg8 Rfc8 Rd8+ Kc7 Qe6 Ned1 Ned3 Nb5 Bb4 Rc2 Ne1 Nbc3 Qb3 Nb5 Bc5 Nbc3 Re8 Kd7 Ndf3 Rc7 Bf2 Ne3 Nd4 Rc6 Rd8+
2q2Q2/1Qn4K/4pPNr/1b2b1Rq/3qBpNb/2P1Pq2/5Nkn/1Br1Q2R w - - 0 1 illegal: No possible last move
2rK4/2R4q/2bpN2P/1r1QPk1n/3P1B1B/N3bQbp/1n2qRq1/B1N1q3 w - - 0 1 illegal: No possible last move, all moves rejected
3K4/N2QNbb1/QBP1RB1k/nnb1p1r1/1qqp2PP/rQ6/R1q2q2/5B2 w - - 0 1 illegal: No proof kernel
1rkb4/1q1N4/2P3pN/B2p1qRq/3Pb2q/rRr5/RN1PB2n/2nK1QQ1 w - - 0 1 illegal: No proof kernel
2N2K1n/rnRQ2n1/2pbB2q/Bp6/1PP2Pr1/3k2N1/N2qrQR1/3n1b1B w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 e5 dxe5 g5 b4 a4 h4 gxh4 Qd3 Qg5 Qg3 Qd8 Qb3 axb3 Ke2 Kf7 Kd3 d5 Kd4 h5 c4 b5 g4 b2 a4 h3 a5 h2 a6 h4 a7 h3 f6 Kg6 e6 c6 Ke5 d4 e7 d3 f7 d2 e8Q d1N g5 Nd7+ Ke6 Nh6 Bg2 Bd6 f8Q+ Nf7 Nc3 b1R Na2 Be5 Bf4 Rh4 Ne2 Rg4 Ng3 Rb2 Rg1 h1Q f3 Qh2 Bh1 Re2 Qee7 Nh8 Rg2 Bc7+ Be3 Be5 Qf4 Qf8 Bb6 Qh6 Qd8 Nc5+ Ke7 Be6 Qd7 Nb7 Ba5 Bf5 Qfd4 Bb1 f4 Bd3 Rg1 Qf2 Rg2 h2 Qb6 Qe3 Qbd4 Qd2 Qf2 Rg8 a8N Rg7+ Ke8 Rf7 Nb6 Rg7 Qd8 Rf7 Nc8 Rh7 Nh5 Kf5 g6 Ke4 g7 Re3 g8B Nc5 Bb6 Nd7 Nc1 Nc5 Ra7 Bf1 Na2 Re2 Ba5 Rf7 Qe7 Kd3 Ng3 Rh7 Be6 Rhg7 Rg1 Rf7 Bf3 h1N Ne4 Rfg7 Kf8 Ng3 Bh1 Nh5 Ng3 Rh7+ Ke8 Rhg7 Rg2 Rf7 Qd8+ Rd7 Qe7 Ng7+ Kf8 Rb7 Ra6 Rc7 Rb6 Ra7 Rb7 Na6 Rc7 Nc5 Qe8 Nb7 Qd7+ Bd6+
2R1n2R/1NQ4n/1Pqn2q1/n4N2/k1bQ1p2/1pr1BP2/2N2qPK/r2b1BQ1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 c3 gxh4 Qc2 b5 Qe4 b3 Qe3 b2 Qd3 b4 Qd2 b3 Qd1 Bb4 cxb4 Ra7 Bh6 Ra5 Bc1 Ra8 e4 c5 a4 f5 a5 h5 a6 d5 e6 h3 a7 f4 e5 h4 f3 d4 Kf2 d3 e7 Kd7 e8N Kc6 e6 Kb5 e7 c4 Ng7 c3 e8Q+ Nc6 Be3 h2 Qe7 h3 Qd7 c2 Qe7 c1Q Qd2 Be6 Qc3 Qb6 Qe8 Bc4 Nh5 d2 Ng3 d1B Qd8 Na5 Nd2 b1Q Qdd4 Q1g6 Nf5 Nf6 Ne2 Nh7 Ne4 Rhc8 Nc5 Qb2 Qc2 Qbc6 Nb7 Qa2 Rc1 Ka4 b5 Qb2 b6 Rc7 Rg1 h1N+ Ke1 Nf2 Rh1 h2 Qb1 Rb8 a8Q Ng4 Qa7 Ngf6 Kf2 Ra8 Qb8 Rc8 Qc7 Qc2 Qd2 Qb2 Ned4 Ne8 Nc2 Ra7 Qd4 Raa8 Be2 Ra6 Rf1 h1N+ Kg1 Nf2 Kh2 Raa8 Rh1 Ne4 Bf1 N4d6 Kg1 Ng5 Rh8 Nh7 Kh2 Qa2 Qba1 Ra7 Qac3 Ra6 Qe1 Ra7 Qf2 Qb2 Qg1 Ra6 Nb4 Qf2 Nc2 Qe4 Rf8 Kb5 Qb2 Nc6 Rh8 Bd3 Qf7 Ra1 Ne1 Na5 Qd4 Qd5 Rc7 Qc4 Nc2 Ka4 Re7 Rc5 Rc7 Rc6 Rc8 B3e2 Qd3 Qe4 Qg7 Rc3 Qc7 Qc6 Qd4+ Bc4
4n1Rq/2Qqb3/Kpq2b1N/2kB3N/n1PnQ3/pPQ5/4rBP1/1RrR1q2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 g5 h4 gxh4 a5 f5 exf5 b6 a6 Bb7 axb7 Qc7 Nc3 Qc8 Nb1 Qd8 Ke2 a5 Kd3 d5 f4 Kd7 c4 Kc6 f6 h5 f7 e5 b3 e4+ Kc2 d3+ Kc3 d4+ Kd2 a4 f5 h3 f6 h4 Qc2 h2 Qd1 h3 Na3 e3+ Ke1 e2 Kd2 Qc7 Qc2 Kc5 Nb5 a3 Qc3 Nc6 b8Q Be7 f8Q Ra5 f7 Nf6 Qbc8 Ne8 Nd6 Ra7 Nf5 e1B+ Kd1 d2 Kc2 d1N Be3 Bd2 Bd3 Nb2 Nh6 Na4 Bf2 Bg5 Ne2 Bf6 Rhb1 h1Q Ng3 h2 Nh5 Qf1 Be4 h1Q Bd5 Qb7 Qc7 Qh3 Bg3 d3+ Kd2 Qh4 Bf2+ Qd4 Rd1 Qc8 Rab1 Rh7 Kc1 d2+ Kc2 Qa8 Qg7 Rh8 Qf4 Rd7 f8R Rd6 Ng4 Re6 Rg8 Re2 Qe4 Qc8 Nh6 Qe6 Bg3 Qde5 Kd3 Nd4 Bf2 Qc6 Qg3 Qg5 Qc7 Qg7 Ng4 Rh7 Nh6 Qh8 Re1 Rg7 Qc2 Bd8 Be6 Bde7 Rec1 d1Q+ Qd2 Qde1 Rd1 Rg3+ Qde3 Qh1 Bd5 Qef1 Q3f3 Nb2+ Kc3 Qh3 Qa7 Kd6 Kb4 Na4 Qfe3 Qf5 Qd2 Rc3 Qdd3 Rc1 Qc3 Qe6 Qb7 Qcd7 Qa7 Nc6+ Kb5 Nd4+ Ka6 Kc5 Qc7+ Qec6
1bn2r2/k3q2Q/Np2P1Q1/nbp1R1qr/2BPr3/BR2r3/NQ3PN1/2Kn4 w - - 0 1 illegal: No proof kernel
bK3N1b/2rB2kP/2r3B1/R3R3/2N1qPQp/NP1n1r2/1B1Q1p1r/2nq1b2 w - - 0 1 illegal: No proof kernel
2rq2n1/2R1B1bP/1b1bnBk1/p6p/Q1BPN3/qK3b1R/1QP1Q3/N1r3r1 w - - 0 1 illegal: No proof kernel
4nb2/1B1b1R1P/1B2PRP1/pk4qN/1qn1qb2/p2N1b2/2r1Q2N/2rK1QB1 w - - 0 1 illegal: No possible last move, all moves rejected
q1k2bb1/2rr2NP/Pp2K2R/1b2Bn1B/pn1PQ2q/1n2N3/1R2B2N/2Q4b w - - 0 1 illegal: No proof kernel
2rr4/q2bq2p/4B3/2nPkN2/1N2N2Q/BpPR2bq/3QrRPq/1Qn1K3 w - - 0 1 illegal: No possible last move, all moves rejected
6b1/1B1Q1BNp/7r/P2b2nP/2nBrRK1/nqpk1r2/P1N2q2/1Qn2N1R w - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 a5 bxa5 e5 Qb3 exf4 Qc2 Ra7 Qd1 Ra8 g3 f5 Qb3 f3 Kd1 f2 Kc2 f4 Bb2 f3 Bc1 Bd6 Qa4+ Bd7 Qb3 Bf4 gxf4 Bc6 Kc3 Bd7 Qd1 Be6 Kc2 Bc8 d4 Ke7 Kd2 Kd6 Ke3 Kd5 h4 g5 f5 b5 f6 c5 h5 g4 Kf4 c3 f7 Kc4 f8N b4 d5 g3 d6 c2 d7 g2 Qe1 b3 Ng6 b2 Nc3 b1N Na4 Nf6 Nc3 Bb7 Ne7 Na3 Bb2 c1N Ne4 Bd5 Ng3 Re8 Bd4 Qb6 d8Q Qb3 Qd7 Ne4 Nef5 Ng5 Ng7 Ra6 Kg4 Rh6 Rh4 Nc6 e4+ Nd3 N1e2 g1Q e5 Nc1 e6 Kd3 e7 c4 Rh1 c3 Bg2 f1B Rb1 f2 Rh4 Rf8 e8B Rf3 Bf7 Re3 Bh1 Bfg2 Ra1 f1R Rb1 Rff6 Nf1 Bge4+ Bg2 Rff3 Rh1 Qf2 Rb2 Qc2 Rb4 Bc4 Ra4 Bed5 Rb4 Nb3 Qb1 Nc1 Neg3 Bb3 N3f5 Re2 N5e3 Bbc4 Qa1 Qb3 Nc2 Ree6 Qb1 Re5 Be8 Bg8 Bf7 Bd5 Be3 Re7 Rf4 Re4 Bd4 Ne5+ Kf5 Rfe3 Bg6 Bde6+ Kf6 Nec4 Bf3 Bef7 Kf5 Re6 Bb7 R6e4 Kg4 Bd5 Bf7 Rf3
1b3R2/b1k1BbP1/1qPr1b1K/3B1Q1p/7q/1q1RNN1Q/Q2pP2n/n2r3B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 fxe5 cxd4 Kd2 h5 c4 a5 b4 f5 g4 d5 e6 d3 Ke3 d4+ Kf4 a3 e7 Kd7 e8Q+ Kc7 g6 a2 c5 d2 c6 a4 b5 a3 g7 d3 g5 Bc5 g6 Ba7 Rh4 Nh6 g8B Na6 g7 Nb4 Bd5 Ng4 Qe3 Nh2 Qa4 d1Q Nh3 d2 Nc3 Nc2 Bfg2 Rh6 Ng1 Be6 Rh3 Bf7 Bh1 Rd6 Nf3 Qb8 Kg5 f4 Qe5 Qb6 Qf5 Bb8 Rb1 a1B Bb2 a2 Ba3 Qe1 Nd1 Bf6+ Kh6 a1B Ne3 Qh4 Rf1 Bad4 Qb3 Na1 Qa2 Ra4 Bc5 Rb4 Rf2 Rb1 Rg3 Rd7 Be7 Rd1 Qh3 Qa5 Rf1 Bda7 Rf2 Qb4 Qf5 Qb3 b6+ Kc8 b7+ Kc7 Ne1 f3 Rf1 f2 Nf3 Rd6 Qh3 Kb6 Qf5 Bc7 b8Q+ Kc5 Nc2 Bg8 Ne5 Qb1 Kg6 Bg5+ Qe6 Qb2 Qc8 Kb6 Qf8 Bcb8 Rd3 Kc7 Qff6 Qb3 Qh3 Qd4 Qfe6 Qdb6 Ne3 Bh4 Qf6 Be6 Kh6 Bg8 Rg1 f1Q Rg5 Qf2 Nf3 Be6 Rf5 Qg3 Qg5 Qf4 Rf8 Bf7+ Kh7 Qg4 Qf5 Bf6 Kh6 Qh4
1k4N1/2nr2p1/4brbq/b3r2P/3p4/PBQ3P1/RQB2RB1/N1nrqRK1 w - - 0 1 illegal: No extended proof kernel
q6b/2qNBQp1/r2b4/r3rRPq/N3PPq1/1B2Qnn1/1p1R1Q2/k5BK w - - 0 1 illegal: Other
4KQBR/2q3p1/2rPbN1Q/1kr1P3/N2Pb1b1/b1B1qRp1/n4Nn1/3Bn3 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Kg3 f5 Kf4 c5 e4 b5 a4 b3 h4 b4 d4 b2 a5 b3 a6 g3 a7 c4 h5 c3 h6 c2 h7 Na6 Rh4 Ba3 d6 Kc6 e6 Nf6 Kg5 f4 Kg6 f3 Kf7 f2 e7 Qc7 e5 Nh5 Ra2 Nb4 Bd2 c1N Bc4 f1B Nc3 b1Q Nh3 b2 Qf3+ Qe4 Nf2 b1B Na4 Nbd3 Bc3 Ne1 Qf6 Bf5 Qh6 Rhc8 h8Q Bg4 Qf8 Qe3 Re2 Rab8 a8B+ Rb7 Rd2 Nf4 Rd3 Bfh3 Bb3 Kb5 Bd1 Rbb8 Bd5 Na2 Rh5 Nfg2 Be6 Qc4 e8N Rc6 Nf6 Rbc8 Bd5 R8c7+ Ke8 Rc5 Be6 R7c6 Bg8 Be6 Rh4 Bhg4 Rh2 Qd2 Rf3 Be4 Qg6 Qe3 Rh8 Nf4 Qh6 Nfg2 Ba1 Qcc3 Bb2 Qa5 Bc3 Qc7
B2bNQ1r/3b2pn/1PP1R3/5Rp1/6qB/rRq1P3/7r/nKqQNQrk w - - 0 1 legal: proof: f4 b5 g4 e5 fxe5 c5 a4 h6 d4 cxd4 g5 hxg5 axb5 Bd6 Bf4 Ba3 Bc1 Bf8 Nf3 Ke7 e3 Ke6 Qd3 Kd5 Kd2 f5 h4 a5 b4 f4 e6 a4 h5 a3 b6 a2 b7 Be7 c3 Ra3 Kc2 Nc6 b8Q Rh7 b5 Nb4+ Kb2 Nf6 h6 Nc2 b6 d6 Qe2 Ke4 c4 d5 c5 d3 Bd2 d4 Be1 d2 Qd6 d1Q Bg2 d3 Rf1 d2 Bg3 Qc7 Bf2 Bd7 Ne1+ f3 Nc3+ Kf5 Qd5+ Kg4 Nb5 Ra8 Rc1 a1R Nd6 R1a3 Kb1 Na1 Qa6 Qe2 Rc3 Rb8 Bh1 Kh3 Rb3 Kh2 Qad3 Rf8 Q5c4 Bd8 e7 Qc6 e8R d1Q+ Qc1 Qdd2 Qd1 Qc8 Re4 Qc7 Ne8 Qe5 Qb5 Qec3 Re5 Qec4 Re7 Qg4 Qd3 Rf7 Bh4 f2 Bg2 Bf5 Ba8 Bd7 Rg1 f1R c6 Rf2 Rf1 Re2 Rf3 Kh1 Qb5 Rh2 Rf2 Rh8 h7 Rg8 h8Q Nh7 Re6 Rf3 Qbe2 Rg3 Rf5 Rf8 Qg8 Rg1 Qf7 Rg8 Qf8 Rh8 Qf1 Qdc1+
b2B1Rnb/2QQ1Pk1/3r4/P1KB2p1/3r2R1/BqN2q2/pn3NQP/1br2b2 w - - 0 1 illegal: No proof kernel
Q2BrQ1b/1bN1RPn1/4qnpr/4bk2/2Pqq1NP/5B2/1bQp2K1/1N4R1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 c4 Kf6 f4 a5 Kf2 e5 b4 d5 b6 e4 b7 d3 b5 e3+ Kg2 g3 b6 a4 Qe1 d2 Rh3 d1Q Nd2 d4 Ngf3 g6 Rh2 e2 Rb1 a3 Rh1 a2 Ne5 a1B Qf2 e1Q Be2 d3 Rg1 Na6 b8Q Nc5 b7 Qe7 Bf3 Bb2 Qa7 Qe8 b8N Bb7 Na6 Bg7 Nc7 Ne6 Qa6 Rd8 Qa8 Rh6 Qe2 Bh8 Ng4+ Ke7 Ra1 Nf6 Ra7 Qf7 Nb1 Re8 Be3 Ng7 Bb6+ Qe6 Qc2 Q1e4 Ba5 d2 Bb6 Qde1 Ba5 Q1e3 Bb6 Nh7 f6+ Kd7 f7 Q3d4 f5 Nf6 Nh2 Kd6 f8Q+ Ke5 Ng4+ Kf4 Kh3 g2 Ba5 Nfh5 f6 Kf5 f7 Nf6 Rh1 g1B Kg2 Be3 Rg1 Bf4 Nb5 Bc8 Re7 Bb8 Bd8 Be5 Nc7 Bb7
2q2Q2/3R1P2/b1B1p3/1P1Q1nk1/1pKBQ1n1/2r1PRnb/qbR2Nr1/b3N3 w - - 0 1 illegal: No proof kernel
2B2q1r/B1NrP1Q1/3r1q2/BR2p2r/1nPR1QN1/1n2b3/2p4P/1k1bqN1K w - - 0 1 illegal: No proof kernel
q1Q1rR2/2b1P1Nb/nP4NB/r1P4p/2kBq1B1/4p2b/2nrb3/2RN1QK1 w - - 0 1 illegal: No proof kernel
r1b2b1r/R2qPB2/Pqn3rn/3K4/Q2P1N1p/Brk4p/1N4Qn/1RB1R3 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 Kf2 Ke7 Ke3 c5 Ke4 h5 d4 b5 a4 f6 g4 b3 a5 c4 e6 Kd6 e7 c3 e8R b2 g5 c2 g6 h3 g7 b4 Na3 b1Q Nc4+ Kc7 d6+ Kc6 d7 Kb5 Kd5 b3 e4 Kb4 e5 b2 e6 f5 Ne2 h4 Nf4 Nh6 g8Q Nc6 Qg2 Kc3 a6 Qb6 d8B Qa2 e7 b1R Bc7 Qa4 Bd6 Rb3 Nb2 Qab5+ Bc5 Qa4 Bc4 Qab5 Be3 c1R Re1 Rc2 Bc1 Rd2 Qf1 Rg2 Rb1 Rg6 Qg2 Qa4 Rd8 Qab5 Rd7 Qa4 Ne6 f4 Ra7 f3 Ba3 f2 Nf4 f1N Bb5 Nd8 Be8 Nh2 Bf7 Qe8 Qg5 Nc6 Qg2 Rb4 Qa4 Rb3 Rc7 Qd8+ Rd7 Qe8 Ra7 Qd7+
K2Rq3/3NP1n1/p1Nnqr2/6P1/bQ1pN1bn/Pq2BR1B/1QR5/5rnk w - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 f5 h4 g5 Qd3 Be7 Qd1 fxg4 Bb2 g3 Ba3 g4 Bc1 Bg5 hxg5 Qf6 Rh5 Qb6 Rh1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 h5 f4 b5 c4 h4 a3 d3 e3 d2 c6 h3 c7 h2 c5 b4 c6 a6 Nc3 b3 Qf3 d1B Bg2 b2 Qf1 b1Q Qe1 Qe8 Bd2 Nh6 Bh3 g2 Nf3 g1N Ne5 Nf3 Ne4 Nh4 Ra2 Nf7 Rc2 Rf8 Rf1 h1Q Rf3 Nd6 Bc1 Qb6 Qb4 Qe1 Bd2 Rf6 Bc1 Bb7 c8R Qc3 Rd8 Bc8 c7 Nc6 Bd2 Nd4 Nc6 Ne6 Bc1 Ng7 Qb2 Kg6 f5+ Kh5 Qb4 g3 Qb2 Rg6 f6 g2 f7 g1N f8N Rf6 Qb4 Qe1 Qb2 Qb3+ Kc5 Nb5 Kb6 d5 Nd7 d4 Bd2 Qe2 Bc1 Qec4 Bd2 Qce6 Bc1 Bb7 c8Q Nd6+ Kc7 Ra7 Qb8 Bc8+ Qb7 Ra8 Qb4 Ra7+ Kb8 Rc7 Nb6 Rcf7 Ka8 Bd7 Bd2 Be2 Bc1 Bb5 Bd2 Ba4 Bc1 Bc8 Nd7 Rf8 Nec5 R8f7 e4 Rf8 e5 R8f7 Bf1 Kg4 Be3 Rf8 Rff2 Kg3 Bh3 Ng2 Rf1 Kh2 Ne4 Kh1 Rff2 Nh4 Rf3 Qf5 e6 R8f7 e7 Qfe6 Rg3 Rf1 Rf3 Rf4 Bf2 Rf6 Be3 Q6g8 Nb6 Bg4 Nd7 Qge6
k1r1Q3/4p1QB/2n2K2/3NP3/2bn2PN/P2rb2B/bpR1qQqR/1b2q2N w - - 0 1 illegal: Other
1KN1R3/1rNP2b1/5QBn/2N1Pb1r/rP1rRpq1/5p1R/qk6/3nBQ1n w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 h3 b6 h2 b7 c4 g6 f3 d6 h4 g7 h3 d7 a4 d5 c3 d6 c2 Nc3 a3 Nge2 a2 Ng3 f4 Bd2 Ka3 b4 c1Q Nd5 Qc4 Nc7 Ra7 Bd3 Na6 b8R Kb2 Be1 Qh4 d8Q Nh6 g8N Bg7+ Qf6 Bf5 d7 Nc5 Re8 Na4 Kd6+ Nc3 e5 Qg4 Ne7 Qf7 Rc1 a1R Ne4 R1a4 Nc5 Qa2 Nc8 Rh7 Bc2 Rh8 Qd3 Nd1 Qf1 Rh7 Be4 Rh8 Rc4 Rh7 Rg1 h1R Rg3 h2 Rh3 Rg1 Bc2 h1N Re4 Rg2 Bb1 Rd2+ Kc6 Rd4 Kb6 Ra8 Kb7 R8a7+ Kb8 Ng8 Bd3 Rh5 Bc4 Nh6 Bf7 Qe6 Bg6 Qf7 Ne7 Qa2 Nc8 Rb7+
1NN5/1r1P3b/1RK1Bbk1/r1n1p2r/2Pq2qB/2nPbQRp/r2N3Q/1B6 w - - 0 1 illegal: No proof kernel
4B2b/nQ1P1R2/n1bPr1r1/5q2/1p5b/1QNr2NP/BpRB2kb/q1QK4 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 Kd7 a4 Kd6 f4 c5 h3 e5 a5 g5 a6 b5 a7 b3 f6 g3 f5 e4 f7 g4 f6 g2 Ra5 e3 Na3 b2 Bc4 g3 Ke2 b4 Qc2 Na6 Qd3 Qd7 Qd2 Ne7 Qe1 Bg7 f8Q Qf5 f7 Rh6 Ra4 Bh8 Ba2 c4 Bd2 c3 Qg7 c2 f8Q c1Q Qfg8 Bd7 Rh2 Bc6 Nb1 Nc8 Qb7 Re6 Nc3 Qa1 Qc1 Rb8 a8B Na7 Ke1 Rd8 Nge2 g1B Kd1 g2 Ng3 Rd7 Ra5 Rd8 Rc5 Rd7 Rh1 Bh2 Rf1 g1R Rc4 Ke7 d6+ Kf6 Qf7+ Kg5 d5 Rg2 Rc5 Kh4 Qg8 Qe5 Rf7 e2+ Kc2 e1B Kd1 Rc7 d7 Qf5 d6 Bf2 Nce4 Rc8 Rc2 Rce8 Nc3 Rg1+ Nf1 Rgg6 Ng3 Be1 Rg7 Re3 Qb3 Rd3 Rf7 Ree6 Qb6 Ba4 Bf3 Bc6 Bh5 Bf2 Qb7 Be1 Nge2 Bf2 Ng1 Kg3 Nge2+ Kg2 Ng3 Rg7 Re7 Rg8 Be8 Rgg6 Rf7 Be1 Nge2 Bh4 Ng3 Kg1 Rf6 Kf2 Rf7 Kg2
3n1q2/R1nP2pQ/6KB/3BP2b/Q1qk2Nq/pP3r1N/Bb2r1Q1/r1r2R2 w - - 0 1 illegal: No possible last move
1q1nbq2/2rp1R2/BkP1q2N/2N1r1Qb/1P2n3/3KBRB1/1R1bPQ1p/5q2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 h5 g4 f5 c4 a5 b4 f3 c5 a4 g6 a3 b6 a2 b7 h4 g7 d3 g5 f2 g6 h3 Qc2 h2 Ba3 f4 Bc1 f3 Qa4 Rh5 Nh3 Re5 Qd1 Nf6 g8Q Ra7 g7 Nc6 b8B Rc7 Ng5 Bb7 Bg2 f1Q Nc3 f2 Rb1 a1Q Nce4 Qa2+ Rb2 Qe6 Nf7 Ba8 Ke3 d2 Qe1 d1B Kd3 Bb3 Be3 Qc8 Bf3 Nd8 Nh6 Bad5 c6 Qb7 Nc5 Ne4 Rg1 Ke7 Rg6 Kd6 Rg3 Be7 Bh5 Bg5 Bf7 Qb6 Rf3 Qb7 Ba7 Qb8 Bf4 Ba2 Bg3 Bd2 Bg6 Nc3 Rf7 Bf3 Be4 Bh5 Bd5 Bb3 Bc4 Ne4 Ba6 Qeh3 Rf3 Bbf7 Bb6 Be8 Qd5+ Ke7 g8R Qf5 Rf8 Qe6 Qc4 Kd6 R8f7 Qg1 Qb3 f1Q Qf2 Qgg2 Qa4 Qgh3 Qa5 Qhf5 Na4 Qff6 Be3 Qfe7 Nc5 Qf8 Qa1 Rb7 Qc1 Kc7 Qc4 Kb6 Qd5 Rf5 Qe5 Rc7 Qf6 Rg5 Qg6 Rf5 Qg5 Re5
3rr3/n1P1BR2/r2bkbr1/3Nn1P1/R4Qpq/KB2pP2/2qRb1Q1/QN6 w - - 0 1 illegal: No possible last move
1q1R2K1/2P2b1r/1Np2R2/b1rBb2k/1QN4P/3nN2R/1q1P1np1/r3QrB1 w - - 0 1 illegal: No proof kernel
qb3nk1/2P2qB1/pB4R1/P1n1Qb2/1q6/2n1PNR1/pr3qrR/Q1K1N2N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Nf6 d4 cxd4 a5 Ne4 Bg2 Nf6 Bd5 Ng8 Bb3 Ke7 Ba4 bxa4 Be3 Ke8 Bh6 Qb6 Bc1 Qd8 Kd2 f5 c4 Kf7 h4 d5 b4 g5 b5 a6 c5 g4 c6 g3 h6 a3 b6 g2 b7 f4 h7 a2 h5 d3 h6 d4 Nf3 g1Q Rh3 Ne7 Ne1 f3 Rg3 Nd7 b8Q Rg8 h8B f2 h7 f1Q Bg7 Qgf2 h8R Ng6 Rh2 Nc5 c7 Bf5 Qb5 Rb8 Bb2 Qd5 Kc1 Qa8 e3 Be7 Ba3 Nf8 Nd2 Bd6 Ndf3 d2+ Kb2 d3 e6+ Ke7 Qb1 d1N+ Kc1 Nc3 Q5b2 Ke8 e7 Kf7 e8N Be5 Nf6 Bd4 Ne4 d2+ Kc2 Qb5 Qd1 Qb4 Rg6 Nd3 Ng3 Ba7 Nh1 Rb5 Rc1 Bb8 Qa1 Rb7 Bb2 Rb6 Bd4 Rb7 Bb6 Rg7 Qe2 Nc5+ Qd3 Kg8 Qe4 Nb5 Bd4 Nc3 Rg3 Rg4 Bg7 Rg6 Rb1 Rg4 Rb3 Rg6 Kb2 Rg5 Qe5 d1Q+ Nd2 Qdf3 Kc1 Qd5 Ndf3 Qf7 Rb2 Rg4 Rd2 Rg6 Rd6 Rg5 Rg6 Rg4 Rgh3 Rg2 Rhg3 Qf4 Ba7 Rb2 Bb6 Qb4
BRb1rR2/bKp3P1/2Q1NBp1/1bQ1P1q1/6P1/1knN1r2/3rq1n1/3bBN2 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 dxc4 h5 g6 h6 Qd4 Rh3 Bf5 Rh1 Qg7 hxg7 Bc8 Kf2 Kd7 Kf3 Ke6 Ke4 f5+ Kd4 h5 b4 a5 e4 a4 g4 a3 d3 h4 e5 c3 b6 h3 b7 c2 b5 f3 b6 a2 Qd2 f4 Qf2 h2 Be3 c1Q Qg2 f2 Ne2 f3 Bg5 Nd7 b8Q Nh6 b7 Nc5 Nd2 Ne4 Qa7 Nc3 b8B Bd7 Qc5 Ra3 Rb1 a1R Ba7 R1a2 Rb8 Nf5+ Kc4 Be7 d4 Nh4 Bf6 Re8 Bb6 Rb2 Ba5 Rab3 Rg1 h1Q Bb4 Qh2 Qh1 Bf8 Bg2 f1B Ba5 f2 Ba8 Bg2 Nf1 Qg5 Nc1 Rd2 Nd3 Bf3 Rg2 Bd1 d5+ Kf7 d6 Ke6 Rg3 Ng2 Rh3 Be7 Rh8 Ra3 Rf8 Rb3 Ng3 f1B Bb4 Bfe2 Nf1 Ra3 Qc6 Rb3 Kc5 Ra3 Qg1 Rb3 Ne1 Bb5 Nd3 Nb1 Rc8 Ne3 Qg3 Rf2 Qb6 Bdc6 Be1 Rd2 Nb4 Qe2 Rb8 Ng2 Qf2 Rf3 Nd3 Nc3 Qe3 Be4 Qd4 Bf5 Qb4 Ba6 Kc6 Bb5+ Kb7 Kd5 d7 Bc5 d8N Bfd7 Qa3 Kc4 Ne6 Be3 Qba6 Ba7 Qc5+ Kb3 Qac6 Bc8+
b2Q1q2/1KpPPb2/1B1r4/P2Nb3/2qbrB1n/1n2p2k/RRQr4/1Q1B1N2 w - - 0 1 illegal: No possible last move
2bn4/1Pb2QNq/Q1RpQ3/4PNr1/2Knrk2/n3R2B/prP3n1/1N1q2B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 b4 Ke5 e4 f5 h4 a5 b6 g5 b5 g4 h6 f3 b7 g3 h7 a4 b6 f2 h5 f4 h6 g2 Nd2 f3 Rh3 a3 Rb1 a2 Ba3 Kf4 e5 Ra4 Bc5 Bd6 Qe1 Qe7 Qe2 Nc6 b8N Nd8 Na6 Bc7 b7 d6 Rb5 Nf6 Nb1 Ne8 Rb6 Rg8 h8Q Rg5 Qg8 Qh7+ Qg6 Rb4 Rc6 Rb2 Kc4 d3 Qe6 d2 Ba7 d1Q Nc5 Ba5 Qd3 Nc7 Qdg6 Nb5 Qgf7+ Ke3 Rg3 Bc7 Ne2 g1N Bh3 f1N Nd4 Ne2 Nf5+ Kf4 Bb6 f2 Re3 Ned4 Ba7 Qg8 h7 Qg6 h8Q Qh7 Rb3 Ng3 Rd3 f1R Re3 Re1 Qhf6 Nf1 Q6g6 Nf3 Qh5 Nfd4 Qe2 Nh2 Qd3 Nhf3 Qa3 Nh4 Qa6 Reg1 Ne4 R1g3 Nf6 R3g4 Ne8 Ng2 Neg7 Rh4 Re1 Kf3 Bc5 Re4 Re3+ Kf4 Bb4 Rb3 Be1 Rb2 Bf2 Qh6 Bg1 Qh4 Re2 Qh7 Re3 Na3+
RK6/NPpBpB2/5BP1/4n3/R4PbQ/1nr1b2b/qrk2N2/1q1rQ1bQ w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 Ke3 Ke6 d4 Kd5 f4 h5 g4 a5 b4 c3 g6 c2 b6 h4 b7 h3 b5 h2 b6 a4 g7 a3 g5 a2 g6 Na6 b8Q Bh3 Bb5 Rh6 Na3 Nc5 Bb2 Nf6 Bd7 Nb3 Nb5 Kc4 d5 Ra3 g8B Bg7 Qb7 Qa8 Bf7 c1B+ Qd2 Rh8 Na7 Rb8 Be5 Bg4 Nh3 Bh8 Rd1 h1B Nf2 Bg2 Rh1 Bg7 Rh8 B2h3 d6+ Be6 Bc8 Nd7 Bf6 Ne5 d7 Bg4 d8Q Bh3 Rb1 a1Q Bd7 Bg4 Rb2 Qb1 Ra2 Bh3 Qg8 Bg4 Qh7 Bh3 Ke2 e3 Qh1 Rb7 Qdd1 Kc3 Qde1+ Bd2 Ra1 Kc2 Qh4 Rb8 Rc8 Qd5 Rf8 Rb7 Ra8 Bhg4+ Kf1 e2+ Kg1 Qa5 Kg2 Be3 Kg3 Nd2 Kg2 Rc3 Ra4 Qd5+ Kg3 Qda2 Kg2 Nb3 Kg3 Nc6 Kg2 Bh3+ Kf3 Ne5+ Ke4 Beg4 Kd5 Rb8 Qef1 e1R Qfg1 Nc4 Kc6 Rd1 Qe1 Bh8 Bg5 Bhd4 Bf6 Rc8 Kb7 Ne5 Bg7 Rh8 Bf6 Rh7 Kb8 Rh5 Nd3 Bg1 b7 Bde3 Nf2 Rf5 Bg7 Rf6 Bh8 Rb6 Bg7 Nd4 Bh8 Rb2 Bf6 Nb3
q1b2b2/Pr2BRn1/pR2B3/2p2rKP/2N1Q1n1/b2P3k/Q1Q1b1N1/qqR5 w - - 0 1 illegal: No proof kernel
N3br2/P2K4/pRPQ1PqB/2BR4/N2r1r1p/Nn5Q/2n4q/k2Br1bq w - - 0 1 illegal: No proof kernel
KQq2n1b/P1r1BRqp/B5N1/RBpkP3/Q3bq2/2q1P3/4n1Nr/n1R5 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 Kf2 Kd7 Ke3 b5 Kd4 f5 a4 h3 g4 h2 g5 b3 e3 b4 a5 b2 a6 f4 g6 b3 g7 f3 d6 Ke6 Kc5 f2 d4 Nd7+ Kc6 Ngf6 Nd2 b1Q Ba3 b2 Ndf3 Nd5 Bb5 f1Q Ne2 Nf4 Ne1 Qg6 Ng2 b1N Qa4 Nd2 g8B+ Qf7 Rg1 h1Q a7 Bg7 Ra2 Nf8 d7 Nb3 Be7 Rb8 Ba6 Qf2 Rc1 Na1 Bb5 Qhe1 d5+ Kf5 d6 Ke6 Ba6 Rb2 Bb5 Ba6 Ra3 Qb8 d8R Qc8 d7 Qh4 Re8 Qf6 d8Q Bb7+ Kc5 c6 Kb6 c5 Qc7 Bf3 Qb8 Qc3 Rd8 Qg5 Rd7 Be4 Rc7 Kd5 Ra2 Qd7 Kb7 Qc8+ Ka8 Bf6 Ra3 Qg7 Rb7 Qfe6 Bf7 Rc2 Bfe8 Qeg4 Ba6 Qg3 Beb5 Qf3 Nd4 Ne2 Nf5 Qf4 Nfh4 Ra2 Bd8 Rg8 Rf7 Rb2 Bd7 Rb7 Be7 Rc7 Be8 Qgg4 Bd7 Bh8 Bdb5 Rg5 Ng6 Rh5 Qc2 Rh2 Ra5 Qgg5 Qa4 Qgg3 N6h4 Qg8 Ng6 Qg7
n1Bq1r2/p2Q1N2/2qR4/2k1P1n1/1r2r2R/Q1pPbbKQ/RBn1P2n/5N2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Kd7 b4 f5 g4 c5 g5 h5 g6 h3 g7 f4 d3 h2 b6 Kc6 b7 h4 Nc3 f3 Nd5 h3 Nc7 c3 Bb2 c2 Na6 c1N Qe1 c4 Nc7 c3 b5+ Kc5 b6 Na6 b8Q Nb3 b7 Rh4 Nd5 Rb4 Ra4 Na1 Qc1 Nc7 Ne3 Nh6 g8R Nc2 Kg3 f2 Rg6 Bg4 Ra2 Nf7 Nf3 Ng5 Rd6 Bh6 Qc8 Rb8 Qf5 Na8 Qd7 Rc8 b8Q Re4 Nh4 Bf3 Ng6 Rb4 Bg2 Re4 Nh8 f1N+ Kf2 Rb4 Nf7 Re4 Qb3 Rb8 Qbe6 Rbb4 Rg1 h1R Qa1 h2 Bh3 Rb7 Rg4 Rbb4 Rh4 Rg1 Qg4 h1Q Qgf5 Nh2 Nf1 Rgg4 Qh7 Rgf4 Kg3 Rf6 Bg4 Rg6 Be6 Rg8 Qf5 Rf8 Qh3 Qf6 Bd5 Qd8 Bb7 Ne6 Qc1 Be3 Bc8 Ng5 Ba1 Rb7 Qa3+ Rbb4 Bb2 Bh5 Qaa4 Rf4 Nd2 Qc6 Nf1 Bf3 Qa3 Re4
1k1qB3/p2n2N1/2P2B2/2R1p1PP/2N1q1nK/NB1r1r2/3bQ1bn/nRQb4 w - - 0 1 illegal: No proof kernel
1b3R2/p3P1P1/KNQ2b2/1nBR1q2/P1pB2bQ/BQr5/n3krNr/4b1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 e5 dxe5 g6 f5 Be7 Bh3 Bf8 fxg6 Nh6 g5 Ng8 Bg4 hxg4 Kd2 Ke7 Kc3 Ke6 h4 Kf5 a4 Ke4 b4 f5 g7 c5 g6 d5 b5 g3 e6 f4 e7 f3 e8Q+ Be7 b6 f2 b7 f1R h5 g2 h6 Bg4 h7 Nh6 g8Q Qc8 Qb3 Qf5 Nf3 g1B Nbd2+ Ke3 Qc6 Bh2 Ba3 Na6 b8B Nb4 Bd6 Rf2 Ne1 Rc8 Rf1 Nf7 Rd1 Rc7 Qd8 Bf6+ Be5 Nd6 Bd4+ Kf4 e4 Na2+ Kb2 Nb5 e5 Rc8 e6 Bg3 e7 Bgh4 Qa5 Bg3 Qab4 c3+ Ka1 c2 Kb2 Rc7 Nc4 Rcc8 Nb6 c1B+ Ka1 Bd2 Kb2 Ke4 Ng2 Bb8 Kc2 Be1+ Rd2 Rhe8 h8B Rc7 Bg7 Rh8 Bh6 Rcc8 Bhe3 Rh2 g7 Kf3+ Qd3 Qh5 Kb3 Qg5 Qh7 Qf5 Rd3 Ke2 Qh4 Bd6 Be5 d4 Kc4 Bb8 Qb3 Rc7 Rd1 d3 B5d4 d2 Qb1 Nbc3 Qb3 Nb1 Kb5 Nbc3+ Ka6 Nb5 Rb1 d1Q Ra1 Qdc2 Rd1 Qc1 Rd3 c4 Bdc5 Rd7 Rd5 Rd8 Bed4 Rh8 Qhg3 R8h3 Qh4 Rc3 Qb2+ Bd2 Re5+ Qe4 Rf5 Bg5 Bf6 Rff3 Rd1 Rf2 Qb3 Qd3 Be5 Qa1 Rf8 Bf6 Kb7 Qf5 Ka6 Bh6 Rd4 Qg1 Rd5 Bd2 Bed4 Be1
B4B2/3rQ2b/1p1Npr2/2Bn2Pk/QR1b4/1NqrP2P/R2r1r2/1Rn3rK w - - 0 1 legal: proof: f4 a5 c4 h5 b4 d5 cxd5 axb4 g4 g5 fxg5 hxg4 Kf2 c5 Kg2 f5 d4 Kf7 a4 Kg6 a5 f4 a6 g3 a7 b3 e3 b2 d6 c4 d7 b6 d5 c3 h3 c2 d6 Nf6 Bb5 f3+ Kf1 g2+ Kf2 Qc7 d8Q Nd5 d7 Na6 Nd2 b1R Ra5 Rb3 Bc4 Rd3 Ra2 Kh5 Ba3 c1R Ne4 Nc5 Qa4 Bg7 Ne2 g1R Nd6 Rcd1 Nd4 Nb3 Bc5 Nc1 Nb3 Rh6 Bb5 e6 Qe7 Bd4 d8B Ba6 Bc6 Rf6 Bb7 Rb8 a8R Bc4 Bc6 Rb7 Ra5 Qc8 Rb5 Rd7 Rb4 Qc7 Ba8 Qc6 Re2 R3d2 Bc7 Bd3 Bd8 Bh7 Bc7 Rd3 Ra2 Rg4 Re1 R1d2+ Kf1 Rgf4 Kg1 f2+ Kh1 Rg4 Rg1 f1R Bd8 R1f2 Re1 Ne2 Rb1 Rg3 Qf8 Nc1 Be7 Qb5 Qd8 Qc4 Bf8 Qc3 Qe7 Rg1+
b1Q2r1q/1P2KB1r/RbPn4/n1n1Q1n1/4pBB1/2R3PN/3nR2p/N2n1k2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Ke2 e3 Kd3 Kf7 Kc4 Kg6 Kc5 Kf5 f4 Ke4 b4 h5 c4 d5 g3 a5 f5 e2 g6 e1N f6 a4 f7 d3 b6 e5+ Kb5 d2 c5 Ke3 g7 Kf2 c6 h4 b7 a3 Ra2 d4 Bh3 e4 Qg4 Bc5 f8R+ Nf6 g8B Nd7 b8Q d3 Bd5 Nf3 Qgf4 Ne8 Qbe5 Bb7 Bb3 Rh7 Bg4 h3 Bf7 h2 Qff5 Rc8 Qfe6 Ng5 Nh3+ Kg2 Rh8 Ra8 Rc2 a2 Re1 a1N Rc3 Nb3 Re2+ Kf1 Na3 Na5 Rg8 Bg1 Nc2 Qf6 Na1 Qh8 Rc5 d1N Rf8 d2 Rc3 Nf2 Q6f5 d1N Bf4 Nb6 Kc5 Rb8 b5 Nbc4 b6 Nd2 Kd5 Nd3 Qd7 Nf6+ Kd6 Ne8+ Ke7 Nd6 Rc8 Be3 Rc7 Rf8 Qc8 Ba8 Ra7 Bc5 b7 Bb6 Ra6 Nc5
4KRN1/P2bb3/qpP1B3/1Q3Q2/1R1p1N2/1nn1Qbk1/1b1PrRBb/1r1b4 w - - 0 1 legal: proof: f4 a5 b4 e5 bxa5 c5 fxe5 h5 g4 hxg4 Ba3 Be7 Bb4 cxb4 Nf3 Bd6 Ng1 Bf8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 c4 f5 a4 d4 h4 b6 e4 b3 h5 g3 a6 g2 h6 b2 a7 g6 c5 Nc6 h7 Nge7 Kg5 f4 a5 f3 a6 f2 Qh5 Na5 Ne2 g1B Ra4 Nb3 Bg2 f1B Rb4 Bh2 Nbc3 b1B Nd5 Bc2 Nf6 Bd1 Ng8 Rb8 a8B Nd5+ Nf6 Nc3 a7 Qc7 Ng8 Qb7 Rg1 Qa6 Nf4+ Kd7 Kf6 g5 Kf7 g4 Qg5 g3 Bd5 Bfe2 Rf1 Bf3 Rf2 Be7 e6+ Kc7 c6 Kd6 Qf5 Rb7 Ke8 Rd7 Bf1 g2 Bdc4 g1B Bg2 Bg3 Qb5 Bgh4 Qf5 Bf8 e7 Bh2 Be6 Rc7 Nh6 Rg8 h8Q Rg5 Ng8 Rb7 Bh3 Rg1 Bg2 Bf6 Qhh7 Re1 Qb5 Rd7 Qa4 Ke5 Qb5+ Rd5 Qg6 Re2 Qf5+ Kd6 Qc4 Ra5 Qd3 Ra1 Qdb5 Rb1 e5+ Kc7 Kf7 Bg5 e8Q Bge7 Ra4 Ba3 Rb4 Bb2 Qe7+ Bd7 Qeg5 Bc8 Ke8 Be7 Qg3 Bd5 Qe3 Be4 Bd5 Bf3 e6 Kd6 Kf7 Bh4 e7 Bg5 e8R Be7 Qg4 Bc2 Rf8 Bd1 Qed3 Ke5 Qe3+ Be4 Qgf3 Kf5 Qh3+ Kg5 Qe6 Kh4 Ke8 Bf3 Qf5 Kg3 Be6 Bd7+
8/n1b1B1n1/1pNN2bQ/1P2P2r/1R1Q2rR/1qPBbpr1/K2Nr1k1/1R3b2 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 d4 exf4 a4 cxd4 a5 b6 a6 Qg5 Kf2 Qd5 Ke1 Qb7 axb7 Kd8 Bh3 Ke7 Bf1 Ke8 Kd2 Ke7 b4 Kd6 e4 Ke5 h4 d5 b5 a5 h6 f5 h7 g5 c3 f3 Kc2 a4 Kb2 f4 h5 d3 h6 g4 Qe2 g3 Be3 d2 Rh3 d1Q Qd3 g2 Rg3 d4 Rg6 a3+ Ka2 f2 Rg7 f3 Qc2 d3 Bg5 d2 Bd3 f1B Qc1 Ra4 Rc7 Ne7 Be3 Nbc6 b8Q Bf5 Qb2 Na7 Qb4 Bg6 Bc5 Kf4 e5+ Kg3 Qd4 Nf5 Be7 Ng7 Ne2+ Kh3 Qb7 g1B Rc4 Be3 Qc6 Kg2 Qe6 Rg8 h8R Rb4 h7 Ra4 Bd8 Bd6 Be7 Bc7 Qf6 Rb4 Qff4 Ra4 Qh6 Rb4 Qd8 Ra4 Nd4 Rb4 Nc6 Ra4 Rh4 Rg4 Bc2 Rg3 Rb4 Rg4 Qd4 Rg3 Kb3 a2 Kb2 Rg4 Bd3 Rg3 Na3 Rg4 Rb1 a1R Nc4 Ra4 Rb3 Rb4 Ka2 Rg3 R3b2 Rf8 Rb3 Rf5 R3b2 Rh5 Rb3 Qe2 R3b2 d1R Nd2 Rc4 Rb4 Qe1 Rg8 Qe2 h8N Re1 Nf7 Qd1 Nd6 Re2 Rf8 Rgh3 Rf4 Rg3 Qd5 Rd4 Rh4 Rdg4 Qd4 Qb3+
4KQB1/3rR2P/1P4B1/rp2p1N1/2n1bbk1/BQRr1n2/q1RnPn2/1r5N w - - 0 1 illegal: No proof kernel
R4R1B/1Nkb2np/2Nb1P2/3B2br/npP1K2Q/nnrQ4/1BN2Pq1/2b5 w - - 0 1 illegal: No proof kernel
1RRQ3n/1B1r1Pb1/1bN1r1Qn/P1rbB3/1p1r1Nq1/1k6/1pR1bP2/1B3K2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 a4 Kd6 d4 b5 f6 c5 a5 h5 g5 e5 f7 c4 g6 c3 g7 c2 Nc3 e4 Nge2 e3 Ra2 b3 Bd2 c1B Qc2 b2 Qh7 h3 Qc2 h2 Ng3 e2 Qd1 b4 Bg2 h4 Nh5 h3 Ra3 Bg4 Rg1 h1B Nf4 h2 Qc2 Nh6 g8B Qh4 Bh7 Nd7 Qf5 Re8 Qg6+ Re6 Rb3 Bg7 Nb5+ Ke7 Be3 Rc8 Rc3 Nf8 Rc2 Rc5 Na7 Kd6 Nc6 Bf3 Bd2 Qg4 Bc3 Be3 Rf1 Be4 Rg1 Bd3 Be4 Bg2 Bf3 h1R Be4 Kd7 d6 Rh4 d5 Bf3 Be5 Re7 Qg5 Ng6 Qh5 Nh8 Qg6 Rc3 Rf1 Bb6 Rh1 Rc5 Rh2 Kc8 d7+ Kb7 d8Q Ka6 d6 Kb5 d7 Ka4 Bd5 Bfe4 Rh3 Bc4 Rhc3 Bed3 Bf3 Bd5 Bh1 Rc4 Bg2 Rd4 Rc5 Rh5 Bh1 Kb3 Rb5 Bc7 Rb8 Bb6 Bd6 Rf5 Qf8 Ng8 d8R Qg2 Qf6 Rfe5 Rc4 Rd7 Ne7 Qg4 Rdc8 Bg2 Qd8 Bf1 Bb7 Nh6 Nc6 Bg2 Bg6 Re6 Be5 Bd5 Rc5 B3c4 Bb1 Bb5 Qg6 Bd3 Kd2 e1R Rc4 Re3 Rc2 Be2+ Ke1 Rh3 Ba6 Rc3 Bb7 Bef3 Kf1 Rc5 Nd3 Bd1 Nf4 Be2+
2R1K3/r2P4/P5r1/1qr1p2k/1P1Nb1nB/2B2np1/4BrQ1/RQbNnR1n w - - 0 1 illegal: No proof kernel
4Qr2/1q1p1bB1/Nn4kb/QbN1r3/1pbNKn2/4Q1r1/PP3Pr1/1B1RR3 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 cxd4 h4 g5 Na3 gxh4 Nb5 Bh6 Nxa7 Bf8 Ke2 Kf7 Kd3 b5 g4 h5 c4 e5 c5 h3 g5 h2 f6 b4 c6 h4 c7 e4+ Kc2 h3 Nf3 e3 Kd3 e2 Bd2 e1R Rg1 h1B Bg2 h2 Bc1 Na6 Nb5 Re3+ Kc4 d3 Kd5 d2 Qc2 d1R+ Qd2 Kg6 f7 Bh6 Re1 Nc5 Nfd4 Rg3 Qe3 Ba6 c8Q Nd3 Nc7 Ne7+ Ke4 Bb5 Na6 Rf8 Qc7 Nf4 Qa5 Ned5 Bd2 Rc8 Bc3 Nb6 Bf3 Rd2 Rad1 Qc7 Bg2 Rg8 f8Q Bc4 Qe8+ Bf7 Bf3 Rg2 Be2 Rg7 Bd3 Qb7+ Nc6 Rg8 Bb1 Rd5 Bg7 Rf8 Nd4 Rc3 Qd2 Rcg3 Qe3 Kh5 g6 Kg5 Bh8 Kh5 g7 Kg6 g8N Rf5+ Nc6 Rfg5 Bg7 Rg1+ Kd4+ Rf5 Be5 Bd5 Bh8 h1B Nf6 Bc4 Ne4 Bb5 Nec5 Bd5 Be5 R1g2 Bg7 Bdc4 Ke4 Rd5 Nd4 Re5+
2Q4B/brP1N1QR/b3r1r1/k2PB3/bq4p1/1R4np/1P3nB1/Rrb2NK1 w - - 0 1 illegal: No proof kernel
n3rb1K/rp1rNRp1/Q1B1k3/2n5/P1PQb1q1/1b1NRBB1/P5Q1/1r4b1 w - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 b3 e5 fxe5 cxd4 Bb2 a5 Bc1 a4 bxa4 Ra5 Qd2 Ra7 Qd1 Ra8 Kd2 Ke7 Kd3 d5 h4 f5 c4 g3 e4 g2 h5 f4 h6 f3 e6 f2 h7 Nd7 e5 Qe8 Ne2 g1B Bg2 f1R Rh3 Rf6 Bf4 Ra7 Nbc3 Bh2 Re3 Rf7 Nc1 Bg1 Bf3 Nb6 Bg3 Kd8 e7+ Kd7 e6+ Kc6 Rb1 Qd7 e8Q Na8 e7 Nf6 Qd2 Rg8 h8Q Ne4 Qd8 Qg4 e8B+ Rd7 Qg2 Kc5 Qa5+ Kc6 Qh4 Nc5+ Kd2 Rh8 Nd3 Rg8 Rf1 Rh8 Nf4 d3 Qa6+ Kc7 Qhf6 d4 Qfd6+ Kd8 Ncd5 Rg8 Ne7 Rh8 Kc1 d2+ Kc2 d1R Nd3 Rb1 Qf4 Rd6 Qf6 Bf5 Bec6 Rd7 Bfd5 Ke8 Rf2 Be6 Nf4 d3+ Kc3 d2 Kd4 d1B Ke5 Bf5 Nd3 Bg6 Qf4 Bc2 Qd4 Bb3 Rf6 Bh7 Bf3 Be4 Rf5 Qh3 Kf4 Rg8 Kg5 Qh4+ Kg6 Qg4+ Kh7 Kd8 Ng6 Bd6 Rf6 Re8 Rf7 Bf8 Kh8 Nb6 Bh4+ Kc7 Ne7 Na8 Qdb2 Kd6 Qd4+ Ke6 Be1 Rc7 Bg3 Rd7
kq1N1r2/1pPn2rp/rbQb4/3n3P/r2P2B1/RQ2N1bR/1K1B1bR1/4N3 w - - 0 1 legal: proof: g4 a5 b4 axb4 d3 d5 g5 c5 g6 d4 Kd2 c4 Ke1 Bf5 dxc4 d3 c5 fxg6 Bb2 g5 Bc1 g4 Kd2 Bd7 Ke3 d2 Kd3 Bf5+ Ke3 Bd3 exd3 Qd7 Ke2 Qd8 h4 Kd7 c4 Kc8 a4 e5 f4 g5 a5 b3 f5 b2 a6 e4 d4 g3 c6 g2 h5 e3 Kd3 e2 Kc2 e1B a7 g4 c5 g3 c7 Be7 f6 Bf8 f7 Ne7 Rh3 Nd5 Ra3 Bd6 f8N Nd7 Ne6 Rf8 Nc3 b1R Nf3 g1B Be2 Ra1 Kb2 g2 Qb3 d1R Bd2 Beg3 Ne1 B1h2 Bg4 g1B Ra2 Rdc1 Nd1 B1f2 Ne3 Rc4 Ra3 Ra4 Ra2 Rb8 a8R Rg8 Ra6 Rg7 Ra5 Qe8 Nd8 Ra8 N1g2 Rf1 Ne1 Ra6 Ra3 Bfg1 Rb5 Rf8 Rb6 B1f2 Rc6 Bde5 Rg6 Bd6 Nc6 Ne7 Be6 Bgf4 Rg2 Nd5 Bg4 Be7 Nd8 Be5 Ne6 N7f6 Qd3 Bhg3 Qb3 Kd7 c6+ Kd6 c8Q Nd7 Rh4 Bd8 Qa8 Bb6 Rh3 Qc8 Nd8 Kc7 Ba5 Bd6 Bd2 Bbc5 Qa7 Qa8 Qab6+ Kb8 Q6b5 Bb6 c7+ Ka7 Q5c4 Qb8 Qc6 Ka8
2b2Qr1/pnbBnRB1/N1r1RQ2/6Pb/1p2PB2/1P3N1r/k1r2R2/1b1q1K2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qd1 b4 Rh3 Qd7 Rh1 Qb5 axb5 Bf5 Nh3 Bg4 Ng1 Bc8 d4 Kd7 g4 Kd6 e4 h5 g5 f5 b6 c5 b7 f3 Ra4 h3 Ra6+ Nc6 b8R f2+ Ke2 c4 Be3 c3 Na3 h2 Bd2 c2 Qc1 f4 Rb7 h4 Nf3 h3 Rh7 Ne7 Rg7 Rg8 Qe1 c1R Rf7 Rc2 Qa1 Rb8 Rg1 h1R Rg2 h2 b3 Rb6 Qc3 Nd8 Qb2 Nb7 Nb5+ Kd7 d6 Ke6 d7 Rbc6 d8B Bg7 Rg1 Be5 Nc7+ Kd6 d5 Kc5 Bh3 f1B+ Kf2 Be2 d6 Bd3 d7 Be2 Ne1 Bh5 Kf1 f3 Bf4 f2 Nf3 Bd6 Qf6 Be5 Nd2 Kd4 Nf3+ Kc3 Rb6 Kb2 Na6 Ka2 Bf5 R6c4 Re6 Rc6 Bb6 Bb8 d8Q Bc7 Qf8 Ng6 Bd4 Ne7 Kg2 f1B+ Kg3 R6c4 Rg2 Bd3 Rf2 Rc6 Kg2 Rf1 Bg4 h1Q+ Kg3 Rd1 Ba1 Qe1 Kg2 Rdd2 Bb2 Qd1 Bd4 R2c3 Bde5 Bb1 Bh3 Qc2 Kf1 Qd1+ Ne1 Rd3 Qf5 Rdc2 Rh6 Qf3 Bg7 Rb2 Rd6 Rc5 Qf6 Qd1 Bd7 Rbc2 Rb6 Rh3 Re6 Qd4 Nf3 Rc6 Nc5 Qd2 Na6 Qd1+
3r1rR1/BBqQ1P2/1Np1Q3/k1b2qqq/b7/1qP1RpN1/Rn3PQK/7b w - - 0 2 legal: proof: g4 b5 e4 g5 h4 gxh4 a4 f5 axb5 d5 Bg2 dxe4 Nf3 f4 Ng1 Nc6 Bh3 Nd4 Bf1 Nf5 gxf5 Qd3 Ra4 Qd5 Ra1 Qd8 b4 Kd7 d4 h5 b6 Kc6 c3 e5 f6 a5 b7 Kb6 f7 h3 d5 h4 b5 e3 d6 f3 d7 e2 Rh2 a4 b8Q+ Ka5 b6 a3 b7 a2 Qb3 e4 Qc4 Ne7 Bh6 Nc6 Be3 Nb4 Qd4 Bc5 Bg5 Rf8 Rg2 h2 Be3 h1Q Qd6 h3 Qe6 h2 Rg8 Qg5 d8Q Bd7 Na3 Ba4 Qdd7 c6 Qg3 Rad8 b8R Qf5 Qg2 Nd3+ Kd2 Nb2 Ke1 Qg5 Rb4 Qf5 Rd4 Qg5 Rd3 Qf5 Bd4 Qg5 Re3 Qf5 Rc1 a1Q Rd1 Qa2 Rd2 Qb3 Nc4+ Ka6 Nb6 Ka5 Nh3 Qg1 Nf4 h1B Nh5 Qh2 Rc2 Qc7 Ng3 Nd1 Ra2 Nb2 Rd3 Qh5 Kd2 Qf5 Ke3 e1Q+ Be2 Qg1 Bf1 Qa7 Be2 Qh5 Kf4 e3 Bf1 e2 Re3 e1Q Ba6 Qb1 Bb7 Qhd5 Kg4 Qgc1 Kh3 Qbf5+ Kh2 Qb8 Rd3 Qcg5 Re3 Qc7 Be5 Qc8 Bb8 Qc7 Ba7 Qd4 Bb8 Qdg4 Ba7 Q4h5+
q6B/2Q1n3/nrBRP3/2p1qBR1/nrP1P1R1/Nk5n/r1pQ2N1/1Kbn4 w - - 0 1 illegal: No possible last move, all moves rejected
b1B1b3/Q1qnrbRK/1bPk3P/Qbr2p2/Q4RN1/1qp1B3/r1PN4/1N6 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 d4 exf4 Na3 c5 Nb1 c4 Qd2 Na6 Qd1 Nc5 dxc5 Rh7 Nf3 Rh6 Ng1 Rh8 Kf2 Ke7 Kf3 g5 Kg4 d5+ Kf3 f5 h4 b5 e4 d4 a4 c3 e5 d3 h6 d2 h7 g4+ Ke2 g3 Kf3 g2 a5 b3 e6 b4 h5 b2 h6 b3 a6 Nf6 a7 Qc7 Ra4 Bd7 Ba6 Be8 Bc8 Nd7 Rh4 Bg7 Rg4 Bd4 Rg3 Rg8 h8N Rf8 Qe2 d1B Nf7 Be3 Ne5 Bf2 Nd2 b1B Ng4 Ba2 Nb1 b2 Be3 Rf7 Rd4 Rb8 a8Q Rb5 Qa7 Rh7 Nh3 g1R Ng5 Bd5+ Ne4 Ba8 c6 Rc5 Ned2 Rf7 Ra4 Kd6 e7 Rg7 Rb4 Bf7 e8Q Rh1 Na3 b1Q Qe4 Qb3 Nab1 Be8 Qc4 Re7 Qca6 Rf1 Qa4 Rg1 Nf6 Re1 Rg7 Bg1 Ng4 Rf1+ Kg2 f3+ Kh3 f2 Kh4 Re1 Kg5 f1B Qf2 Bb5 Rf4 Bde2 Qf1 Bec4 Q4a5 Bcf7 Qc4 Bf2 Qca4 Bg1 Na3 Ra1 Nab1 Bfc4 Q5b4 Ra2 Qba5 Rf7 Kg6 Re7+ Kh7 Bcf7 Rb4 Bh2 Re4 Be5 Rf4 Bd4 Nf1 Rc4 Nfd2 Bb6 Rf1 Rc5 Rf2 Qb4 Rf4 Qb3
b5Q1/4b1R1/P2qPN2/1Q2R2n/5Nbb/p1rn2Bp/P4B2/1bkNnBKq w - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 b4 exf4 h5 a4 h6 Ra5 bxa5 gxh6 Bb2 h5 Bc1 h4 Kf2 Kd7 g4 Kd6 d4 h5 e4 f5 a6 c5 g5 h3 g6 a3 g7 c4 Nf3 h2 Be3 b4 Qe2 b3 Qd2 c3 Qe1 h4 Ng5 c2 Bd2 c1B Ne6 h3 Nc7 b2 Bb5 f3 Qd1 f4 Nc3 b1B Qg1 Nd7 Qf1 Be7 Be3 Ne5 Nd1 Nf6 g8N Nh5 Rg1 h1Q Nf6 Bg4 Ne6 Re8 Qe2 Nd3+ Kf1 Qb6 Bf2 Rc8 Qb2 Rc3 Bc4 Bd2 Qb5 Be1 Bg3 Bc2 Rb1 f2 Rb2 Bb1 Re2 Bd8 e5+ Ke7 Rc2 Qd6 Re2 Kf7 Re4 Kg6 Re3 Kf5 Re4 Qc7 d6 Be7 d7 Qc5 d8Q Qd6 Nc7 Kg5 d5 Kf5 e6 Kg5 Re2 Kf5 Rc2 Ke5 Qg8 Kd4 Nb2 Ke3 Rd2 Qc5 d6 Qcd5 d7 Qe5 Rc2 Qd6 Rc1 Kd2 Rd1+ Kc2 Rd2+ Kc1 d8B Bf3 Nd1 Ba8 Ke2 f1N Ncd5 Bf2 Bb6 Nh2 Bc5 Nf3 Kf1 Nfe1 Re2 f3 Nf4 Rb3 Re5 Rc3 Bh2 Bg3 Bf2 Bh4 Bhg3 Qd4 Bh2 Nb4 Be3+ Qd2 Bd4 f2 Bc5 Qd6 Bd3 Qhd5 Rg7 Q5c6 Bg3 Qh1+ Ke2 f1B+ Kf2 Bfg2 Bf1 Bgf3 Bd4 Bg4 Bb6 Qhd5 Kg1 Nbd3 Bbf2 Qh1#
1QQq4/KRNR1Pqn/4p2n/bpNB4/2r1Pn1B/1n6/1rP4k/RN3r1n w - - 0 1 legal: proof: g4 c5 b4 f5 d4 cxd4 b5 g5 b6 axb6 h3 b5 Bg2 b6 Bf1 b4 Bb2 Bb7 Bc1 Bf3 gxf5 g4 Nc3 g3 Nb1 Bg4 hxg4 Qc8 Nf3 Qc7 Ng1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 a4 h5 e4 b3 f3 b2 a5 h4 a6 g2 g5 d3 f6 h3 a7 h2 g6 e6 g7 d2 f7 Kf4 Ra6 Kg3 f4 d4 f5 d3 f6 Bb4 f8N Ba5 f7 Nd7 Nh3 g1N Nf4 Rb8 a8Q Nh6 Nd5 Nf6 Nc7 Ne2 Nd7 Nf4 Ra7 Nh7 Ka6 Rf8 Qh5 d1Q g8R+ Qg4 Qe5 d2 Nc5 d1R Bc4 Qg7 Rb7 Rf1 Ka7 Kh3 Rg1 h1N Bd5 Kh2 Bd2 Rc8 Be1 b5 Bh4 Re8 Nc3 b1N Rh8 Nd2 Nb1 Rf8 Qb8 Nb3 Qc3 Re8 Rf8 Re7 Re8 Rd7 Re7 Rd6 Rd7 Rc6 Na4 Rc4 Nc5 Rb4 Nd2 Rf2 Ra1 Rf1 Qc4 Nd4 Nb1 Rb2 Ne8 Rc6 Nc7 Nb3 Qc3 Qg2 Qh8 Qg7 Qg8 Qdf6 Qgc8 Qd8 Nd3 Rc3 Nc5 Rc4
1B2R2r/PK1p2q1/1rrB1Q1Q/3P4/4Np1b/3Qn3/P2rn2n/qBNRr2k w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 f5 b5 f6 Ba6 bxa5 b4 c4 Bb5 cxb5 exf6 Rh2 f5 Rh1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 d4 Kg3 e4 c5 a6 h5 b6 f5 e5 h3 b7 h4 e6 b3 e7 f3 e8Q b2 Qe5+ f4 Qde2 c4 Qd3 c3 Qb5 c2 Qb4 h2 Qbe7 f2 Qh7 h3 Bd3 f1N Nc3 b1R Qf6 Nc6 b8B Nge7+ Kc5 Rb2 d5 Nd4 Qhh6 Ne2 Rb1 Kf2 g4 Kg2 g5 Bg7 g6 Qf8 Kd6 Nf5+ Kc7 N5e3 Ne4 Qf7 Bd2 c1R+ Bc2 Bf8 g7 Be7 g8Q+ Qg7 Bb4 Re1 Bd3 Rd2 Bd6 Rc1+ Kb7 Rc6 Qgh7 Bd8 Qb2 Bh4 Rd1 Ng4 Nf3 Nfe3 Rhe1 h1Q Bb1 h2 Nd4 Qf1 Nb3 h1R Nc1 Nh2 Qbf6 Rg1 Q7g6+ Kh1 Ba7 Rae8 Bab8 Re6 a7 Ra6 Bb4 Rec6 B4d6 Qg2 Qff5 Qa1 Qge6 Qgg7 Qef6 Nd4 Re2 Re1 Qh3 Ng2 Qd3 Ne3 Rg2 Ne2 Rg3 Qf8 Rg8 Qg7 Re8 Rab6+
1q4b1/q5k1/1P1Nq1p1/3pK1R1/bq2nQr1/1B1P4/2QrqbPR/2BBN2N w - - 1 2 legal: proof: b4 c5 a4 e5 f4 b5 axb5 exf4 Ra6 cxb4 Ra2 Ba6 Ra1 Bc8 h4 Nc6 h5 Nce7 h6 g6 Ba3 Nf5 Bc1 Ng7 hxg7 Ba6 Ra2 Bb7 Ra1 Bc8 Kf2 h5 Kf3 f5 e4 Kf7 c4 d5 c5 a5 b6 h4 c6 a4 e5 a3 c7 h3 Nc3 b3 Nge2 a2 Rh2 b2 Qa4 b1Q Ne4 Rh4 Nd4 Be6 c8N Qb4 Rh1 h2 Qa6 Rg4 Qc4 Nf6 Ng3 Ne4 Qc2 Bc5 Be2 Kg8 Re1 h1Q Bd1 Qh3 Nd6 Qb8 Rb1 a1Q d3 Qaa7 Rf1 Kh7 g8Q+ Kh6 Qe8 Bg8 e6 Kh7 e7 Kg7 Nb3 Bf2 Nd2 Qh4 Ra1 Qf6 Qea4 Qe6 e8B Qaf7 Qab3 Ra2 Ba4 Qfa7 Rh1 Rb2 Rh5 Ra2 Rg5 Rb2 Nh1 Ra2 Ke2 f3+ Kf1 f4 Qbc4 Be1 Bb3 f2 Ke2 f3+ Ke3 f1B Kd4 f2 Rb1 Be2 Nf3 f1Q Ra1 Bh4 Ne1 Bf3 Rb1 Qe2 Ra1 Qef7 Ke5 Bf2 Q2c3 Rd2 Qc2 Rf4 Qc7 Bg4 Q7c4 Bd7 Qd4 Bb5 Qe3 Rg4 Qf4 Qaa8 Ra7 Ba4 Rd7 Qaa7 Rd8 Bh7 Rh8 Bg8 Rh2 Qe6#
1kn1R2q/r1nR3p/P1q2qp1/2B1Q1QN/1r2Nn1P/1P1R4/1b1n4/1B2BK1n w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 f5 Qd5 fxg4 Qd1 b3 Kd2 b5 Qe1 b2 Bg2 b4 Bf1 b3 Qd1 Ba6 Ke1 Bc4 Nd2 b1N Ndf3 b2 Nd2 Bb3 cxb3 Qh4 Nh3 Qf6 Ng1 Qd8 h4 c5 a4 d5 e4 Kd7 f4 Kc7 e6 g3 e7 g2 e8Q g6 a5 c4 f5 c3 e5 d4 f6 c2 f7 d3 e6 Ne7 Qg4 Na6 Qb5 Nc8 e7 Ra7 e8R Qf6 Qgh5 Ba3 Nh3 g1N f8B Ne2 Bc5 Nf4 Ne4 Nd2 Qg5 b1Q Rg1 Rg8 Rg3 Bb2 Ra4 Rf8 Rd4 Qa1 Be2 Rg8 Bg4 Rg7 Bf5 Rb7 Rd5 Kb8 Rd7 Nc7 a6 Rf7 Qa5 Rb4 Rf3 Nc4 Kf2 d2 Rfd3 d1N+ Kf1 Re7 Bd2 c1Q Be1 Nf2 Qg3 Nh1 Qg5 Ra4 Qc3 Rb4 Qe5 Qc3 Ng1 Qa4 Ne2 Qac6 N2g3 Qh8 Nh5 Rf7 Qd5 Q3f6 Qe5 Nd2+ Kg1 Ka8 Nd6 Qhg7 Rh3 Qa4 Rdd8 Nce6 Bb1 Qc6 Ne4 Qh8 Rhd3 Ra7 R8d6 Nc7 Rd7 Nf3+ Kf1 Kb8 Qd4 Rc4 Qc3 Rb4 Qce5 Nd2+
k7/2Rr1Q1q/2bPrp1B/5Br1/n3Qq2/2r1nP2/pBPRN3/NNr2nK1 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 g4 Kd7 b4 Kc7 f3 Kb7 b6 a5 b5 e5 g5 h5 d5 h3 g6 a4 g7 f6 Bb2 h2 Qe2 d1R Ba3 h4 Nh3 d2 Kd3 e4+ Ke3 Ra5 Kf2 e3+ Kg2 Nd7 Nf2 Ka8 Bb2 a3 Qd3 e2 Ne4 e1R Nc5 a2 Nb3 Rc1 Qe4 d1R Bd3 Nh6 g8Q Nc5 Qf7 h3+ Kf2 Bd7 b7+ Ka7 b8B+ Ka8 b6 Qc7 Rg1 h1Q Rg7 Qf4 d6+ Bc6 Ba7 h2 Rh7 Rd8 Rg7 Rd7 Rh7 Kb7 Rg7 Kc8 b7+ Kd8 Qb4 Qe3+ Kg3 Re7 Qfc4 Ng4 Na3 Na4 Bc5 Qg5 Be3 Rb1 Be4 Rd3 b8N Kc8 Qd5 Bd7 Nc6 Rc3 Ncd4 Bc6 Bf4 Ree3 Ne2 Qe5 Qbd4 Kb8 Bg6 Re1 Rd1 Ka8 Rd2 Rc1 Na1 Qf5 Bg5 Qf4+ Kh3 R3e4 Nb1 Ne3 Rh7 R4e5 Q4e4 Rb7 Re7 Rac5 Qf7 Re6 Bh6 Rg5 Bf5 Qg1 Bg7 h1N Bf8 Ng3 Bg7 Qf1+ Kh2 Ra7 Rd1 Qh3+ Kg1 Qh7 Bh6 Rb7 Rd7 Rb8 Rb7 Rd8 Rc7 Ngf1+ Bg4 Rb5 Rd2 Rd7 Bh3 Rh5 Bf5 Rg5+
kq2BN2/p2p1n1N/1R2r1qb/q4q2/P2KbB1R/PP6/r3Rqr1/Q4Q1B w - - 0 1 illegal: No proof kernel
2nr4/k4P1q/q1Q3Np/Nb2nb2/3P1pqQ/1BK1q2q/1BNRRb1P/2R5 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 Nh3 f5 Kf2 a5 Ng1 f3 Ke1 f4 Qa4 Ra6 Qc2 Rf6 Qd1 Rf5 gxf5 Be6 Ra2 Bd7 Ra1 Bc8 b4 Kd7 e4 c5 d3 Kc7 Kd2 Kb6 e5 g5 e6 f2 e7 g4 e8Q a4 f6 c3+ Kc2 c4 f7 a3 Qd7 g3 Q1g4 g2 Qg3 a2 Na3 h6 Nf3 g1Q Qc6+ Ka7 Bb2 Qh4 Re1 a1Q Re2 Bf5 Ne5 Bc5 Ng6 Qh3 Qh4 Ne7 Rd2 Nd7 b6+ Ka6 b7+ Ka7 b8N Ne5 b5 Rd8 Bg2 f1B Bd5 Qgg4 Rg1 Be2 Rc1 Bf2 Be6 Nc8 Bd5 Be6 d4 Bf1 Nd7 Qa2 Nc5 Qa1 Nb7 Qa2 Nb1 Qa6 Na5 Bd7 Re2 Be6 Na3 Bf5+ Kd1 c2+ Kd2 Qhg2 Kc3 Q2h3+ Kb4 c3 b6+ Kb8 b7 Ka7 Rd2 Be2 b8R Bb5 Rb1 c1Q Bb3 Qc2 Rc1 Qcd3 Nc2 Qe4 Ne3 c2 Kc3 Bc4 Rb4 Bb5 Rc4 Rd5 Re1 Rd8 Ree2 c1Q+ Kb4 Qcb1 Rc1 Qbd3 Nc2 Qde3 Nh8 Qg7 Ng6 Q4f3 Rb1 Qh7 Rc1 Nd3+ Kc3 Qh5 Ne7 Q5g4 Ng6 Ne5+
4B1nq/1Q1pk2K/bnP1B3/3R4/Qnq1N2b/1r1PRn1b/1P2pBn1/1R3N2 w - - 0 1 illegal: No proof kernel
2qnQQ2/r3N1pQ/bkp2NBB/4Nr2/1r2P2K/1q5r/1PPq4/2nrR1R1 w - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 e4 dxe4 d3 hxg4 Kd2 e3+ Kc3 e2 Kd2 Qd4 Nh3 Qd5 Ng1 Qd8 Ke3 e1R+ Kf4 e5+ Kg3 e4 Nf3 e3 Kg2 e2 Ng1 Bb4 Nd2 Bc5 Nb1 Be3 fxe3 Rh6 Nf3 Rh4 Ng1 Rh8 Kg3 Kd7 h4 a5 h5 f5 h6 a4 e4 f4+ Kh2 c6 h7 Kc7 d4 a3 d5 g3+ Kg2 a2 d6+ Kb6 d7 f3+ Kh3 f2 Qd6 g2 Nf3 g1Q Ne5 Ra4 Qf8 Nh6 Nc3 Nf7 Bh6 Na6 Rc1 Qg6 Rg1 a1R Qe8 Qc7 Kh4 Qe6 d8Q Nc5 Bh3 f1R Bf5 Rd1 Bg6 Rf5 Qd6 Rb4 Qdf8 Qb3 Nd5+ Ka7 Rb1 Nd3 Ne7 Ba6 b6+ Kb7 Re1 Qc8 Rg1 Nd8 Re1 Rg8 h8Q Nc1 Qh7 Rh8 Rg1 Bc4 Re1 Ra7 Rg1 Ka6 b7 Kb6 b8N Ba6 Nbd7+ Kc7 Kg4 e1Q Nf6 Qd2 Kh4 Kb6 Ra1 Qc4 Ra3 Qf7 Re3 Qb3 Ree1 Qbe6 Be3+ Ka5 Kg3 Rf2 Qhg8 Rf5 Bf4 Rh4 Qh7 Kb6 Bh6 Rh3+ Kg4 Re3 Kh4 Qb3 Rg4 Ref3 Rgg1 Rh3+
1RQNn2r/kB2br2/npn3r1/4p2Q/q1RP1N1N/2Q3BP/1Pn5/qK1n4 w - - 0 1 legal: proof: e4 d5 a4 f5 g4 fxe4 c4 h5 cxd5 hxg4 a5 b6 a6 Bb7 axb7 Qd7 Ba6 Qc8 Bf1 Qd8 h3 Kd7 f4 g5 d4 e5 Kd2 a5 Kc2 c5 d6 Kc6 f5 e3 f6 c4 f7 e2 d7 e1N+ Kd2 c3+ Ke2 c2 Kd2 g3 Kc3 g2 Nd2 a4 Rh2 g4 Ra3 g3 Nc4 Qe8 d8Q Nf6 Kd2 Ra7 Rc3 a3 Qh5 a2 Nf3 g1R Bg2 Na6 b8N+ Kb7 Nc6 a1Q Ne3 Qa3 Nh4 Bb4 Bh1 g2 f8Q Qd7 Qfe7 Ne8 Nd5 Bc5 Qc7+ Ka8 Nd8 Qda4 Qf6 Bd6 Qc5 Rf7 Qff5 Be7 Qb4 Ka7 Rc8 Rf1 Qfg4 g1N Rb8 R1f6 Qc8 Ne2 Rg2 Rfh6 Rg6 Nc3 Rc6 Rg6 Rc4 Nd1 Qc3 Ng2 Kd3 Nge3 Bf3 Rgf6 Bd2 Rg6 Be1 c1N+ Kd2 Nd3 Nf4 Nc2 Bg3 Ndb4 Bb7 Nc6 Kc1 Bf8 Kb1 Bd6 Nf3 Be7 Nh4 Qa1#
8/3pQQbB/QbP1rR1q/R3P1N1/n7/2b2bBb/qk1PN2p/1n3nNK w - - 0 1 illegal: No proof kernel
7q/1pk1PQ2/1RbR2p1/qQN1b1P1/1bn1Nb1B/r4n2/BPBn1Q2/K3b3 w - - 1 2 illegal: No proof kernel
2bQ4/1rqR2p1/PN1brb2/kb2Q1K1/b4p1B/Qn2PP1b/1B4BR/1N3b2 w - - 0 1 illegal: No possible last move, all moves rejected
3qQ3/1b1rpR1R/2NrBn2/rr2rQ1Q/2P1r3/3P4/2r1PKpb/k3BNR1 w - - 0 1 illegal: No proof kernel
N4Q1r/1B1k4/1rq2Q2/1qP2pp1/bn2RbP1/Q1R3Pq/5Kr1/Bbb3NR w - - 0 1 illegal: No possible last move, all moves rejected
1q4k1/N3qbP1/nB2QQ1n/1Prpq3/BnRPp3/rKN4r/1R1Q3q/B7 w - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 cxb5 Bg7 a5 Bf6 Na3 Bd4 Nb1 Bb6 axb6 Kf8 Ra3 Kf7 Ra1 Ke8 g4 Kf7 f4 c5 d4 a5 Kd2 h5 Kc3 d5 g5 e5 f5 c4 b7 h3 b6 e3 b5 e2 f6 e1Q+ Qd2 h4 Ba3 h2 Nf3 a4 Ra2 h3 Be2 Nh6 g6+ Kg8 g7 Be6 Rg1 h1Q Bb2 a3 Bd1 h2 Ba4 Qe7 Ba1 Na6 b8B Bf7 Rb2 a2 b7 e4 Bc7 Qg3 Bd8 Qge5 b8Q Qg2 Qb6 h1Q Kc2 c3 Rc1 Qhh2 Kb3 c2 Qe6 Qgg3 Nc3 Rc8 Ba5 Rc5 Bb6 Qb8 Ne5 Qg5 Nc6 Qge5 Re1 Rh7 Na7 c1N+ Kc2 Nd3 Rc1 Ndb4+ Kb3 Qbc7 Nb1 Qb8 Rc4 Ng4 Nc3 Rh3 Qe1 Nh6 Qd1 Qh1 Qd2 Qhh2 Qg2 Kh7 Qd2 Bh5 f7 Bg6 f8Q Bh5 Qff2 Bf7 Qff6 Kg8 Rb1 Qeg3 Bb2 a1R Rh1 Qgf4 Rb1 Ra2 Ba1 Qfe5 Rb2 Ra3+
1k2q3/2rR1B1Q/1p2Nn2/1PN1r1R1/3p2P1/1b4q1/qBnQNrPn/2K1r2R w - - 0 1 illegal: No possible last move, all moves rejected
1n1b4/1bK3qp/N3q2k/N1BqRn1P/4B1qP/3nb1BQ/2p1P2R/R2rQ3 w - - 0 1 legal: proof: c4 b5 g4 a5 a4 e5 h4 Ra6 c5 Rh6 axb5 Rh5 f4 exf4 c6 dxc6 gxh5 c5 Rh3 c4 Rh2 Be7 Rh1 Bf8 Kf2 g5 Kf3 c5 Ke4 f5+ Ke5 Kf7 b4 Kg7 d4 f3 d5 c3 b6 c2 b5 g4 d6 c4 d7 g3 b7 a4 b6 f4 Nd2 a3 Rh3 a2 Bb2 c1N Ke6+ c3 Rh2 g2 Kd5 f2 Qe1 f3 Nc4 Nd3 Na5 Be7 Nh3 g1B Ng5 Kh6 Ne6 c2 Bg2 f1Q Ba3 f2 Be4 Qh3 Nc5 f1Q Na6 Qg4 Bc5 Qe8 d8R Qff3 Rd7 Be3 Rd6+ Qeg6 Re6 Qff5+ Re5 Qd6+ Kc4 Qde6+ Kb5 Qd5 Qf1 Qfe6 Qh3 Nd7 b8B Bb7 Bc7 Nb8 Bd6 Bf8 Bc7 Ne7 Bd6 Nf5 Bc7 Bc8 b7 Be7 Bd6 Rd8 Kb6 Nb4 Kc7 Nd3 Re1 a1Q Reh1 Nc6 b8Q Bb7 Qa7 Qb2 Ra1 Nb8 Qb6 Qb1 Qb4 Qbg1 Qe1 Qg7 Bd4 Q1g4 B6c5 Rd6 Bc3 Rb6 B3d4 Rb1 Bb2 Rd1 Bbd4 Bd2 Bf2 Be3 Bg3 Bd8+
2b2QN1/n1n1rP1B/1RR2pQ1/nR1p2KN/2q2P2/P1q5/qb3Nbq/B1k5 w - - 0 1 illegal: No possible last move, all moves rejected
2R5/krB1qKNQ/n1npN2N/nQ4pP/1P2Bn2/1qB5/R5P1/1q2r1br w - - 0 1 illegal: No proof kernel
3Rqq2/1B3pN1/1kb2KBq/4r2R/QNPrNP2/3P4/Qnn2n1p/4Br1n w - - 0 1 legal: proof: e4 b5 h4 c5 b4 d5 a3 dxe4 Qf3 g5 Qd1 gxh4 Qh5 Bg7 Qd1 Bc3 bxc5 b4 Nh3 b3 Ng1 Bb4 axb4 Qd6 Ke2 Qb6 Ke1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 h5 Kg5 a5 g4 h3 c4 e3 f4 e2 d3 e1Q Ra4 h2 Be2 h4 Nc3 b2 Qd2 b1Q Nd1 h3 Nc3 Bd7 Nf3 Na6 Ne4 Nf6 Nh4 e5 Nf5 Qf8 Ng7 Re8 b5+ Kb7 c6+ Kb6 c7 Nc5 c8Q Bc6 Qa8 Qa1 Ra2 a4 Bf3 a3 Qa4 Qb2 Ra1 a2 Qe2 Rd8 Bd2 Rd4 Qf2 Qe2 Be1 Qe3 Kf5 Rh5+ g5 Ng4 Qd2 Nf2 Kf6 Qb1 g6 Qb4 Rb1 a1N Qda2 Nc2 Rb2 Qa5 Rb3 Qa6 Rb1 Kb7 b6 Rg5 Rb5 Qe2 Rg1 h1N Rg4 h2 Rh4 Qaa8 Rh5 Qae8 Ra5 Rg1 Ra8 Rf1 Rd8 Qe3 Bg2 Qh3 Bf3 Bb5 Bg2 Kc6 b7 Kb6 b8N Bc6 Na6 Qh4+ Ng5 e4 Nb4 e3 Be4 e2 Bg2 Bd7 Bb7 Qh3 Ne4 Bb5 Nf5 Bc6 g7 Qh4+ Ng5 Qh3 g8B Qh4 Ng7 Qh3 Q4b3 Na4 Bh7 Nb2 Qba4 Qh4 Bg6 Qh3 Bd2 e1R Ne4 Re3 Be1 Re2 Ra5 Qh6 Rh5 Re3 Ng3 Re7 Ne4 Re5
1r6/2qrn1qQ/3P2R1/k3Np1P/1qr1NBBR/2np3K/r1Q2P2/1b2QRn1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 e3 d5 Qf3 d3 Qf5 d4 Qf3 e6 Qd1 Be7 Bh3 d2+ Kf1 d3 Kg2 Rh5 Qe1 Bf6 Qd1 Bd4 exd4 Re5 Kg3 Rc5 Bf1 Rh5 Kg2 Rh8 c4 Kd7 b4 Kc7 h4 Kb6 h5 f5 d5 a5 d6 g5 Qe2 d1R Bb2 g3 Ra2 a4 Qd2 e5 Nc3 g4 Ba1 a3 Qh6 e4 Qh7 e3 Be2 Nd7 Nf3 Ne7 Ne4 Rc1 Rf1 Rb8 Be5 Qc7 Bf4 Rd8 Ne5 Nf6 Bd1 e2 c5+ Ka7 c6 Kb6 Rc2 e1Q Rc4 a2 Be2 a1R Rd4 Qa7 c7 Be6 c8Q Nfd5 Qc2 Nc3 Bd1 Qc7 Rc4 Kb7 b6 Ka6 b7 Ra2 b5+ Ka5 b6 Rd7 Bf3 Nd1 Rd4 Qb4 Be2 Nc3 Bf3 Rg8 b8Q Bc4 Qb7 Rb8 Qc6 Be6 b7 Bb3 Qe2 Bc2 Qe1 Bb1 Bd1 Ne2 Qc2 Nc3 Kh1 g2+ Kh2 g3+ Kh3 g1Q Bg4 g2 Rc4 Re8 b8R Rh8 Rf8 Rg8 Rf6 Rb8 Bh2 Qh1 Rg6 g1N+ Kh4 Qf3 Bf4 Qh1+ Kg3 Qh4+ Kg2 Qf6 Rd4 Qg7 Kh2 Nf3+ Kh3 Ng1+ Kh4 Ra3 Bg3 Qb5 Bf3 Rd1 Qa2 Rb7 Nd2 Ncd5 Rdg4 Qbc4 Ne4+ Qb4 Bf4 Rc1 Kg3 Rc3 Rh4 Rb8 Qc2 Ra2 Bg4 Rc4 Kg2 Nc3 Kh2 Nf3+ Kh3 Ng1+
3q2q1/1Q1q2k1/2Nqp1r1/1p1P2n1/3P4/1n2PBBK/Nb1RN1n1/r1R1rQ1B w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 h3 fxg4 Nc3 g3 Nb1 g2 Qb3 g5 Qc2 g4 Qb3 g3 Qd1 Bg4 hxg4 Qd6 Bb2 Qd7 Bc1 Qd8 d4 Kf7 f4 b5 a4 h5 g5 c5 f5 e6 g6+ Kg7 e3 c4 a5 b3 a6 h4 a7 b2 Ra3 c3 Qd3 c2 Ra2 h3 Be2 h2 Bf3 Rh6 Ne2 g1N Kf1 Nf6 Kg2 Na6 Bd2 c1Q Nbc3 b1Q Be1 Ne4 Rd2 Ng5 Na2 Qcc7 Qc4 Nc5 f6+ Kh8 f7 Kg7 Bf2 N1h3 Rc1 h1R Be1 Be7 f8N Nb3 Nd7 Ba3 Nb8 Qcd7 Nc6 Bb2 Bf2 Re1 Qd3 Kf6 g7 Rg6 g8B Kg7 Bh7 Qc2 Qf5 Qc5 Qd3 Qcd6 Qc4 Rc8 a8Q Rc7 Qd3 Ra7 Qb7 Ra4 Nf4 Ra6 Qf1 Ra5 Ne2 Nf4+ Kg1 g2 Kh2 Ra8 Kg3 g1Q+ Kh4 Nd3 Bg3 Nf4 Bh1 Ng2+ Kg4 Rf6 Be4 Rg6 Bf3 Ra6 Nab4 Ra1 Na2 Qh2 Rc4 Qhh8 Rc1 Nh7+ Kh3 Qhf8 Qa8 Qg8 Qb7 Ng5+
1k2r1B1/n1n5/1pbqP1b1/1R2Q1pn/2QBB1K1/1P3qP1/1N2bq2/3RN1qN w - - 1 2 illegal: No possible last move, all moves rejected
n3BN1B/6q1/qnbKNRP1/np1n4/pB6/1R2QP2/kP2Q1Q1/bq1r1b2 w - - 0 1 illegal: No proof kernel
n7/6r1/1qnqQR1p/pN2PN1r/R1P1k2q/rB2B1nQ/rR4KP/2b2B2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d3 c5 d4 e5 Kf2 Ba6 Ke1 Bd3 fxe5 cxd4 Nf3 f4 Ng1 Bf5 gxf5 Ke7 Nh3 Kf7 Ng1 Ke8 Kf2 Ke7 e4 d5 b4 g5 c4 a3 b5 f3 f6+ Ke6 b6 a2 b7 g4 f7 g3+ Ke1 d3 Bd2 g2 Kf2 d4 Kg3 f2 Qf3 Nd7 b8R Ba3 f8Q Qb6 Kh3 Bc1 Be2 f1N Be1 d2 Bf2 d1Q Na3 d3 Qe8+ Ne7 Be3 d2 Nb5 Ng3 Bf1 Qe1 Ne2 g1R Qc8 Nc6 Ned4+ Ke7 e6 d1Q Qg4 Kf6 e7 Ke5 Nf5 Qd6 e8B Rg2 Rb7 a5 Qg8 Ra7 Bh5 Rb2 Bd1 Rb3 Kg2 Ra3 Rb8 Rb7 Bb3 Rc7 Rb1 a1R Rb2 R1a2 Qg4 Ra7 Qcg8 Rb7 Rf8 Ra7 Rf6 Qf2+ Kh3 Qf4 Qh5 Qh4+ Kg2 Rb7 Bc5 Kf4 e5 Ke4 Qgg6 h6 Be3 Rg8 Qe8 Rg5 Qc8 Ra7 Qhe8 Rh5 Qe6 Rb7 Bd2 Qe3 Be2 Nb6 Qcg8 Ra4 Bed1 Ra1 Be2 Na8 Rf1 Qec5 Be3 Bd2 Rd1 Qb6 Bf1 Re7 Rdb1 Bc1 Ra2 Bd2 Rbb2 Bc1 Ra3 Ra2 Qg5 Qg4 Qh4 Rg7 Qh3 Qh4 Bd1 Rb4 Ra4 Rb3 Bc2+ Rd3 Bd1 Rda3 Bc2+ Qd3 Bb3 Qd6
2R2R1N/1BbQ3n/1pN2bQp/4Bbn1/q3kn2/2q1PrbQ/qP1P3K/3R4 w - - 0 1 illegal: No proof kernel forced: bxDB
1Q2Rq1N/4np1r/NnQpr3/1K2b1N1/1BB1Pq2/3P1n1q/2Q2PRr/5k1q w - - 0 2 legal: proof: h4 e5 a4 b5 axb5 g5 d3 gxh4 Kd2 e4 Kc3 Bb7 Kd2 exd3 Kc3 d2 Kd3 Be4+ Kc3 Bd3 cxd3 Nf6 Kc2 Ng8 Kb3 Ke7 Kb4 Kd6 e4 Ke5+ Ka5 Kf4 b4 h5 g4 c5+ b6 h3 g5 h2 b5 c4 g6 h4 g7 d6 Nc3 h3 Nb1 c3 Qe1 c2 Ra3 Ne7 g8Q Nd7 Ne2+ Kf3 Rg1 d1Q Qd2 h1Q Nf4 h2 Rg2 Rh7 Ng6 Bg7 Nh8 Qf8 b7 Re8 b8Q Be5 b6 a6 b7 Nb6 Kb4 a5+ Kb5 a4 Rc3 a3 Rc8 a2 Ba3 c1R Qc2 a1N Bb4 Nb3 Qbc7 Qe2 b8N Nd2 Q7c6 Qe3 Na6 Qf4 Rd8 Nf5 Rb8 Re6 Re8 Ne7 Nc3 Rh5 Na4 Rh7 N4c5 Rd1 Rg6 Re1 Bh3 Ke2 Rg2 Kf1 Bg4 Nf3 Bf5 Rf6 Ne6 Rd1 Ng5 Re6 Rg3 Qg2 Rg4 Qh3 Rg2 h1Q Bg4 Rf6 Be6 Re1 Bc4 Re6 Qb3 Ke2 Qa4 Rg1 Qc2+ Kf1 Rh2 Rg4 Rg2 Rgh4 Qd2 Qhg3 Qc2 Qg7 Ra8 Rh2 Qgc8 Qg8 Q8c7 Qh3 Re8 Qg7 Qb8 Qf8
r1Rn4/2RnRp1P/1N4Qq/3rN2P/2qqr2K/nQ4p1/1q1BBP2/1bB3k1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 gxh5 a5 Bh6 axb4 Bf4 Rh7 Bc1 Rh8 e3 d5 Bd2 e6 Bc4 d3 Kf1 d4 Bc1 d2 Kg2 Bc5 Be2 d3 Bf1 Bd4 exd4 Rh6 Kf3 Rh7 Kg2 Rh8 Kg3 Kd7 a4 Kc6 h4 Kd5 c4+ Ke4 d5 g5 c5 b5 a5 b3 h6 e5 h5 g4 a6 b2 h7 b4 c6 b3 a7 Qc7 d6 Nd7 Nh3 Ne7 Ra5 Rd8 Qc2 d1Q Bh6 Qd2 Kh4 Kf3 Nc3 b1N Qb2 e4 Be2+ Kg2 Nd5 e3 Re1 Na3 Nb6 Qc1 Rc5 d2 Qa2 d1Q Ng1 b2 Nf3 b1Q Qb3 Qbb2 Ne5 Qdd4 Bf4 Bb7 Bh6 Qc8 c7 Be4 Rc4 Qa6 c8R Bb1 R4c7 Nc6 Bf4 Qcc4 Bh6 Rb8 a8Q Kh2 Qb7 Ra8 Qc2 Kg2 Qg6 Kh2 Bd1 e2 Bd2 Ncb8 Qf3 Nc6 Qb3 Kg2 Rf1 e1R Be2 Kh2 Rh1+ Kg2 Rh3 Kg1 Re3 Rd1 Bc1 Re8 Bd2 Nd8 Bc1 Nb8 d7 Re6 Nd3 Re4 Ne5 Ndc6 d8B Nd7 Be7 Nd8 Bb4 Rd3 Nd5 Qd6 Bbd2 Qf8 Nb6 Qh6 Bb4 Qdc5 Bbd2 Rd5 Rf3 Q4d4 Rf6 Qb5 Re6 Qbc4 Re7 g3+
3Bn2Q/1N1Nb3/Rn1p3N/pr1b1RP1/Prk2P2/1n2B2K/2n1bn2/2Q3rB w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 fxg4 Bc1 g3 Nd2 g4 Nb1 Qg5 hxg5 Ke7 Rh2 Kf7 Rh1 Ke8 e4 Ke7 a4 Ke6 f4 a5 b4 h5 b5 c5 b6 h4 b7 g2 Kf2 g3+ Kf3 d6 Kg4 h3 Be3 h2 Ne2 g1R Qc1 c3 Nd2 c2 Rb1 g2 Rb5 c4 Ng3 c3 Nb3 Be7 Nf5 Nd7 b8B Nb6 Nh6 Ba6 Bc7 Rb8 Kh3 Nf6 Bd8 Ne8 Be2 Rf8 Bf3 Rf5 Rc5 Be2 Rb5 Kd7 e6+ Kc6 Nc5 Rd5 e5 Rb7 Qa3 c1N Be4 Rb8 Nb7 Nb3 Qc1 c2 Bf3 Nd4 Be4 Re1 Rg1 h1B Bf3 Bf6 e7 Rf1 e6 Re1 Qa3 c1N Qb2 Ncb3 Qc1+ Nc2 Rf1 Ng7 e8N Be7 Nf6 Ne8 Rf2 Rg1 Nd7 Bd3 Rd2 Bc4 Rd4 Be2 Re4 Re5 Reb4+ Re4 Rd5 Rd4 Rf5+ Re4 Rf6 Kd5 Rb5+ Kc4 Rff5 Kd3 Rbc5 Rb4 Rb5 Kc4 Bc6 Na8 Rb6 Rb5 Ra6 Nb6 Rf7 Rd1 Rf5 g1N+ Kg3 Bd5 Kh2 Bf8 e7 Nh3 Kg3 Rg1+ Kh4 Nc7 e8Q Nf2 Qe5 Be7 Qh8 Bg8 Bh1 Ne8 Qf6 Rb4 Qf8 Bd5 Qh8 Rc8 Qd1 Rc5 Qc1 Re1 Kg3 Rcb5 Kh4 Rf1 Kg3 Rg1+ Kh2 Ng4+ Kh3 Nf2+
1B6/K1N3b1/3P2pN/R1Q3QB/nn1R4/r3n1b1/P1b1QpPr/b1Rr1b1k w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 h4 dxc4 h5 e5 fxe5 g6 h6 Qd6 Nf3 Qf6 Ng1 Qg7 hxg7 Kd8 Qc2 Kd7 Qd1 Ke8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 e4+ Kf4 e6 Kg3 d3 c5+ Kd5 b5 d4 f5 e5 h5 e7 b3 e8R c3 e6 c4 e7 b2 Kc5 b4 Kb6 b3 d5 c2 d6 h4 Nf3 c3 Qe2 f4 Nbd2 b1B Qc4 b2 Be2 h3 Rf1 h2 Qc6 h1R Ng5 Kh2 Qa4 f3 Ne6 f2 Nb3 Na6 Qa5 Nb4 Bg4 Nh6 g8Q Ba6 Rd1 Bf1 Rd4 Bg7 Qc5 Ra3 Be3 c1B Bh5 c2 Ra8 Ng4 e8Q Bd2 Ra5 c1B Qgf8 Bc2 Qff5 b1N Ka7 Nc3 Qg5 Na4 Nc7 Bb2 Rc1 Ba1 Qeb5 Bdc3 Qe2 Bcb2 Rd5 Bge5 Nd4 Bg3 Nf5 Bg7 Rd4 Kg1 Nh6 Rh2 Bf4 Kh1 Be5 Re8 Bf6 Ne3 Bd8 B3e5 Nb5 Bf4 Bc7 Bg3 Bb8 Re5 Nc7 Rd5 Rg4 Rdd3 Rd4 Rd1
2r2n1B/2brp3/4P1Q1/3NP1bP/BN1K1bkp/rq4BR/b3NR2/r5bQ w - - 0 1 illegal: No proof kernel
n3qBB1/PqR3N1/1Q1Qqk2/1NR2p2/1bq5/5P1P/1qBprr2/K2Rqn2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 c5 gxh5 d5 b4 axb4 Qd3 Be6 Qe2 cxd4 Qd1 d3 Bf4 d4 Bc1 Bd5 exd5 Qb6 Qf3 Qd6 Qd1 Qd8 Kd2 e5 a4 Ke7 c4 g5 c5 b5 h3 f5 c6 e4 f3 b3 a5 b4 d6+ Kf6 h6 b2 h7 g4 d7 b3 c7 e3+ Ke1 g3 c8B d2+ Ke2 g2 Kd3 e2 a6 e1Q Ne2 g1Q Ra4 Qg4 Rb4 Nh6 Rb5 Bb4 Na3 Re8 Ng3 Re2 h8R Qe8 Rh7 b1Q+ Kc4 b2 Kb3 d3 a7 Rf2 Rc5 Na6 Nb5 Nc7 d8Q+ Q1e7 Be6 Qc4+ Ka4 Rc8 Bg8 Na8 Qb6+ Qee6 Rhc7 Ng4 Be2 Nh2 Nh5+ Kg5 Ng7 Kf6 Re1 Rd8 Rg1 Nf1 Rh1 Rd4 Rg1 Re4 Rh1 Ba5+ Ka3 Qbc2 Rg1 b1Q Bb2+ Re5 Bd4 Bc3 Be3 Ba5 Bf4 Re3 Bd6 Re4 Bf8 Bc3 Qe1 d1Q Qd2 Qe1 Bd1 Ree2 Qf4 d2 Qfd6 Q2e4 Bc2 Qbd1 Rh1 Bb4+ Kb2 Qb7 Bb1 Nh2 Ka1 Qdb3 Rf1 Qec1 Re1 Nf1 Rd1 Q1c2 Rc1 Qd1 Bc2 Qe1 Rd1 Qb2+
2B5/1PbnQ2Q/k3p2P/N2nBq1b/Qn1NPq2/K2nB2R/1p6/1Rnn2r1 w - - 0 1 illegal: No proof kernel
rN3Q1n/1bB1qNN1/1q1Q4/1P1p1B1P/R3pq2/3PR2B/r1q1qbq1/k1K5 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 hxg4 b3 b5 Nf3 b4 Ng1 Nc6 Na3 Na7 Nb1 Nb5 cxb5 a4 Qf3 axb3 Qe2 Ra6 Qd1 Ra8 a4 Kf7 h4 Kf6 f4 e5 a5 g5 h5 d5 a6 c5 d3 c4 Kd2 g3 a7 e4 Ba3 b2 Kc2 g4 Qe2 c3 Qf2 b3+ Kd1 g2 Nd2 g3 Ngf3 g1Q Rh3 g2 Ne5 Bc5 Qg3 Ne7 Nc6 Bb7 Nb8 Ng6 Nf3 Bf2 Ne5 Qe7 Nf7 b1Q+ Bc1 b2 Ra4 Rg8 Qh2 Qa2 Re3 Qh1 Kc2 g1Q Bh3 Nh8 Bd2 Qhg2 Bc1 Kg7 f6+ Kh7 f5 Rg4 Re1 b1Q+ Kd1 Rg8 Qd6 c2+ Kd2 Rg6 Re3 Qbb3 Bb2 Kg8 Bd4 Rg4 Bb6 Rh4 Bc7 Kh7 Bg4 Rh2 Bh3 Qab2 Ng5+ Kg8 f7+ Kg7 f8N Q2a2 Nfe6+ Kf6 Nf7 Qab2 Qd7 Q2a2 Ng7 Qab2 Nd6 Ke5 f6 Q2a2 f7 Qab2 Ra1 Kd4 f8Q Q2a2 Nf7 Qab2 Ke2 Kc3 Qd6 Q2a2 Bf5 Kb2 Kd2 c1Q+ Ke2 Qc5 Kd2 Q1f1 Bh3 Qb6 Bf5 Qab1 Ra4 Q1a2 Bh3 Qg3 Bf5 Qfg2 Bh3 Ka1+ Kc1 Qge5 Nc6 Rd8 a8B Qf4 Nb8 Rc8 Rd4 Qe2 Bf5 Ba6 Bc6 Bb7 Bcd7 Re8 Nc6 Ra8 Nb8 Rh4 Bh3 Rg4 Bf5 Ra2 Ra4 Rg6 Ne6 Rg8 Qh6 Re8 Qf8 Rc8 Ng7 Rd8 Na6 Ra8 Nb8 Qbc2#
2nR2B1/1p1r3n/1Qqrq3/nn5k/1Pn1Q2P/1p2NNK1/1n1NPRB1/5bB1 w - - 0 1 illegal: No proof kernel
RR2n1b1/3nN1pK/P3q1B1/2Q1Q2P/4qQ2/r2N2P1/1qqrNpk1/1qB2q2 w - - 0 1 illegal: No proof kernel
4B1bb/B1QN3R/1KqBq1P1/2Rp1n2/1k1r2P1/6p1/Q2b1NP1/3Qnqqb w - - 0 1 illegal: No proof kernel
1r5q/1kq1nB2/8/rN1b1pr1/1R1qq1Q1/1p1NB1bK/1P4PP/1r1RBN1Q w - - 0 1 illegal: No proof kernel
2Bk4/3Pn1Qp/1PQRR3/1rq2n1P/N3QK2/pr2N1qb/1q1Bq1Rn/4n3 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 e3 d5 Ra5 e6 Ra4 d3 Ra1 d4 Be2 d2+ Kf1 d3 Kg2 Bc5 Bf1 Bd4 exd4 Qd7 Kg3 Qd6+ Kg2 Qd8 Kg3 g5 f4 a5 b4 e5 h4 e4 c4 a4 d5 e3 b6 e2 b5 e1N f5 a3 d6 Ra4 h5 Nf3 f6 Nd7 b7 Qa5 b8R Nh2 c5 Ne5 f7+ Kd8 c6 Nef3 Ra2 Qc3 Ne2 Ne1 Bh3 Rb4 Qc2 d1Q Bd2 Ne7 Rb6 Qb2 Nbc3 Rb3 Nf4 Qe2 Nfd5 Re8 f8Q Bf5 Bc1 d2 Ne3 d1N Bd2 Be6 Qe4 Bc8 Nf1 Ne3 Qg7 Rf8 Na4 Rf5 Rb8 Rd5 b6 Rdb5 Rg1 Qd1 Rg2 N3f5+ Kf2 Qdc2 Ne3 g3+ Ke2 g4 c7+ Ke8 Ra1 Kd7 Rd1 Qc5 Rf2 g2 Ra8 g1Q Rg2 g3 Bg4 Bb7 Rf8 Ba6 Rf6 Bc8 Re6 Qh1 Rf2 g2 Bh3 g1Q Rg2 Nf1 Bg4 Qhh2 Bh3 Nc2 Kf3 Ne1+ Kg4 Qhe5 Kg5 Nh2 Bg4 Qf6+ Kf4 Qf1+ Rf2 Ba6 Bc1 Ra5 Re5 Qg6 Rd4 Ke8 Bd2 Nh4 Be6 Qfc4 Re2 Bc8 Rg2 Rab5 Rd3 Nc6 Rdd5 Qe2 Bg4+ Be6 c8Q+ Nd8 Qcc7 Nc6 Rd4 Ne7 Qcc6+ Kd8 Bf5 Bg8 Bc8 Be6 d7 Bh3 Re6 Nhf5 Rdd6 Qg3+
3Bq3/1QPNNrnr/N3Q3/2p1pRPk/q4qr1/n1P5/1B4B1/1r1KbqR1 w - - 0 1 illegal: No possible last move
q1R1K1NQ/3PN1B1/N1B2prq/3p3q/1RbB4/5q2/2PP1r2/1n1Qbkrr w - - 0 1 illegal: No proof kernel
3R2QK/1qr2q1p/4BN2/NPn1n1B1/P3Rb1q/1QbB1p1P/q4b2/kb4Q1 w - - 0 1 legal: proof: e4 a5 c4 d5 f4 dxe4 b4 g5 fxg5 b5 Qb3 Ra7 Qf3 Rb7 Qe2 axb4 Qg4 b3 Qh5 b4 Qd1 Rb5 cxb5 Bg4 Ba3 Bd7 Bc1 Bc8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 f5 g4 e3 a4 b2 d3 b3 g6 Kb4 g5 c5 d4 c4 g7 e2 d5 e1Q+ Be3 f4 h3 f3 d6 c3 g6 c2 d7 c1B Ne2 Nh6 g8Q Na6 g7 Nf7+ Ke6 Qb6+ Qd6+ Nc5+ Kf5 e5 Kf6 e4 d8Q Qh4+ Bg5 e3 Rh2 Ne5 Qc6 Bf5 Qd1 Qb7 Nd2 b1Q Ne4 b2 Qce6 Qa2 Nd4 Ka3 Nb3 b1Q Rd2 e2 Rd8 Kb2 Na5 e1B Bd3 Bc3 Qg1 Bf4 Qd5 Qc2 Re1 Qc1 Qb3+ Ka1 Nf2 Bd6 Re4 Bg3 Ng4 Bf2 Qe8 Qf1 g8B Bc7 Kg7 Qc1 Qh2 Qf4 Be6 Rf8 Nf6 Rf7+ Kh8 Bb8 Qg8 Rc7 Bf1 Bg6 Qg1 Qf5 Nd7 Qf7 Nf6 Bf5 Rf4 Bb1 Bd3 Be3 Rb4 Ba7 Re4 Bf4 Nh5 Ncd7 Nf6 Bf2 Rd4 Nc5 Rb4 Ncd7 Re4 Nc5
1N1Kr2k/1pB2Q2/4q1q1/3bRn1P/2B2bR1/P2pb3/1PQr1rrQ/1RN3b1 w - - 0 1 illegal: No proof kernel
2b5/1qbr1r2/Qp1bN1B1/QQ1R1b2/KP1B1pqq/r4P1R/1P3BN1/1k4q1 w - - 0 1 legal: proof: h4 g5 d4 gxh4 d5 Na6 d6 cxd6 a3 d5 Bg5 d4 Bf4 Nc5 Bc1 Na6 e4 d5 Be3 d3 Bc1 Nb4 axb4 d4 Qe2 Nf6 Qd1 Nd5 exd5 Bh3 Ra2 Bg4 Ra1 Bc8 Kd2 Kd7 c4 Kd6 g4 Ke5 g5 Ke4 d6 a5 c5 f5 g6 h5 c6 e5 g7 h3 g8Q b6 d7 h4 c7 h2 Ra4 h3 Qe6 Qh4 d8B Rh7 Ra2 a4 Qd6 a3 Nf3 Rf7 Qc5 Bd6 Rg1 h1B Rg7 h2 Qb5 f4 Ra1 a2 Ne1 Ra3 Qh5 Bg2 Rg8 h1Q Bf6 Bgh3 Rh8 Bhf5 Ng2 Qg1 Kd1 d2 Kc2 d1R Be3 Qgh1 Bc4 Qg1 Bb3 d3+ Kc3 d2 Kc2 Bcd7 c8Q Bc7 Qca6 Bc8 Kc3 Bd6 Kc4 Qgh1 Qba5 Qg1 Kb5 Kd3 Ba4 e4 Nc3 Qgh1 Bed4 e3 Ne4 e2 Ng5 e1B Ne6 Qg1 Rc1 a1Q Rc5 Qc1 Re5 Qc7 Rd5 Qb7 Be7 Bc7 Bec5 Bd6 Bb3 Bc7 Ba2 Kc2 f3 Bf2 Bb3+ Kb1 Qg5 Qg4 Rh3 Bh4 Qh5 Be7 Bf2 Bed6 Bcd4 Rc1 Bc4 d1Q Bd3+ Rc2 Qg5 Qde1 Be4 Rd3 Ka4 Rcc3 Bfe3 Qeh4 Bf2 Bh7 Bg6 Rb3 Bh5 Bf5 Bg6 Rd2 Qe7 Re3 Qe8 Rd1 Qeb5 Rdd3 Ng7 Ree7 Ne6 Rd7 Re5 Re3 Rd5 Ra3+
4K3/2n1R1r1/3N1rBq/1PN1Np1Q/nQ4PB/PR3B2/r1n1p2p/bb2bk2 w - - 0 1 illegal: No proof kernel
N5QB/1qp3n1/1R6/1nrQbkP1/1P2Np2/1P2brn1/pQRK2Br/1bR5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 f5 b4 a3 e6 axb4 exf5 Rh6 f4 Rh3 Ke7 Rh1 Ke8 e4 Kd7 g4 Ke6 d4 h5 b3 a5 e5 f5 g6 h4 g5 c3 g7 f3 Bf4 c2 Qe2 c1B Nd2 f2+ Kd1 h3 Rh2 a4 Rg2 a3 Ne4 a2 Nf3 h2 Qb2 h1N Nfd2 Ne7 Nc4 Qd5 Nb6 Be3 Rc1 Ra5 Na8 Qb7 g8R Bg7 d5+ Kf7 d6 Ke6 d7 Nbc6 d8Q Rc5 Rh2 Na7 Bg2 f1R+ Ke2 Bf6 Rg6 Rf3 Rgh6 Nb5 Qd6+ Kf7 e6+ Kg7 Ke1 Ng3 Be5 f4 Qd5 Nef5 e7 Bd7 Bc3 Be5 Rb6 Be8 Bd4 Bg6 e8Q Rh3 Qf8+ Kh7 Kd1 Ng7 Qff7 Bd6 Bf6 Be5 Ke1 Bf5 Qg8+ Kg6 Kd1 Bf2 Kd2 Rh8 Rhh1 Rh2 Rc2 Bfd4 Rhc1 Bg1 Nd6 Bd3 Ne4 Kf5 Rc4 Bb1 R4c2 Ne8 Bh8 Ng7 Ke1 Bf2+ Kd2 Be3+
3K4/pQp3NR/1RB3BQ/4P3/P1k1BP2/bn1nr1pr/q1Nn1Qr1/b6b w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 h4 g5 hxg5 f6 g6 Ba6 g7 Bc8 g4 Bc5 g5 Bd6 g6 Bf8 Bg5 fxg5 Kd2 Ke7 Ke3 Ke6 Ke4 h5 a4 d6 b4 c3 f4 g4 b5 c2 b6 c1B b7 h4 Nf3 g3 Bg2 h3 Qc2 h2 Nh4 Na6 b8Q Rh6 Qb7 Ba3 Nf5 Rh3 e3 Qh4 Qf2 d5+ Kd4 Bfb4 e4 Nf6 Ra2 Qh8 Rb2 Qg8 Rb3 Bd6 Rb6 Nc5 Bf3 Qf7 g8B Rb8 g7 Nb3+ Kc3 d4+ Kc4 d3 Kb5 d2 Kc6 d1N Bh7 Bdb4 g8Q Nb2 Qf8 Nd3 Bg6 Bc3 Qh6 Ba1 Bg2 Nh7 Bf3 Ng5 Bg2 Nf3 Ng7+ Ke7 e6 Nfd2 e5 Qg8 Rg1 h1R B2e4 R1h2 Rh1 Rg2 Rh2 Bc1 Na3 Bcb2 Nc2 Ba3 Qa8 Ba6 Qb7 Rd8 Qc8 Bc4 Kb7 Bd5+ Kb8 Rd6 Rh1 Qf7 Qb7 Bc6 Kc8 Rd4 Bef5 Re4 Rh2 Re3 Be4 Kf8 e7+ Kg8 e8B Kf8 Ne6+ Ke7 Ng7 Qg8 Nh5 Ke6 Kd8 Qf7 Bef5+ Kd5 Ng7 Kc4 Be4 Qd5+ Bd7 Qd4 Rh1 Qb2 Rh2 Bd5 Bc6 Qa2 Qh5 Rh4 Bef5 Rg1 Rh3 Bg2 Bfe4 Bh1 Qg5 Rg2 Rh2 Rg4 Rh7 Rh4 Qh6 Rh3
2B1r3/Qn1q2b1/6Nb/Rq2PPrp/p4nP1/1bNQRn2/Q5pN/3KB1k1 w - - 0 1 illegal: No proof kernel
2RBbNq1/2r2n2/1Q1b1BR1/n2pN1r1/RP2p1b1/1Bq1r1pQ/2P3KP/4k3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 f4 Kf7 Kf2 Kf6 b4 g5 b6 d5 b7 a5 Nc3 e5 Ra2 d3 Na4 g3+ Kf3 e4+ Kg2 g4 Nc5 d2 Qf3 d1B Qf2 a4 Qe3 a3 Qd3 Rh7 Ne6 Nc6 b8Q Nh6 Nf3 Bd6 Rg1 Bd7 Qb6 Qg8 Ne5 Na5 Nf8 Nf7 Bb2 Be8 Qb3 Rh3 Bc4 Rc8 Qd3 Be2 Bb3 Rc7 Raa1 a2 Bc3 Kg7 f6+ Kh6 f5 Kg5 Bb2 Kf4 Bd4 Nh6 f7 Bd1 f6 Be2 Rae1 a1Q Bc3 Qb2 Ra1 Bd1 Bd4 Qc3 Ra4 Be2 Nh7 Bd1 f8B Nf7 Be7 Be2 Nf8 Bf3+ Kf1 g2+ Kf2 Bd1 Bd8 Re3 Qf1 Nh8 f7 Be2 Rh1 g1R Qh3 Rgg3 Rg1 Bd1 Nfd7 Bf3 f8R+ Nf7 Nc4 Be2 B4f6 Bd1 Rg2 Be2 Kg1 Kf3 Kh1 Bd1 Rg1 Kf2 Nce5 Ke2 Rg2+ Ke1 Kg1 Qh7 Rh8 Qg8 Nf8 Rgf3 Rg3 Rf5 Kg2 Be2 Rh6 Bd1 Rg6 Rg5 Rf3 g3 Rf4 Rc5 Rh4 Bg4 Rh7 Nh8 Rc7 Nf7 Rc8 Rc7
n2qB3/4Q3/q2BR1R1/p1PQNp1K/1n1QbrPN/2p3b1/3BP1rk/5n1b w - - 0 1 illegal: No proof kernel
7Q/b3krqb/1R3pP1/RK4rn/2p1NPB1/2n1Qp2/1Pr1R1N1/2Bq1q1N w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 e4 Qb3 Ba3 Qh3 Bf8 Qf3 exf3 g4 h5 e4 a5 d4 c5 Kd2 h3 Kd3 h4 Kc4 a4 g5 f6 e5 a3 b6 a2 g6 h2 e6 h3 e7 Rh6 b7 Qc7 d6 Ra7 d5 Nd7 b8R Rh5 Na3 Nh6 Rb6 Nf5 Nc2 Rg5 Kb5 c4 Ne1 Ng3 Ng2 Nh5 Ne2 Rb7 Rg1 h1R Ng3 Rh2 Nh1 Ra7 Bd3 Bb7 Bf5 Ba8 Rb1 a1Q Re1 Bb7 Bg4 Ba8 Nh4 Rc2 Re2 h2 Ng2 Bb7 Be3 Bc8 Rbe1 Qd1 Bc1 Qb7 Re5 Qc7 R1e2 Qf1 R5e3 Bb7 Ra3 Qd1 Ra5 Bc8 Rb8 Nb6 Rb7 Bf5 Rb8+ Kd7 e8N Be6 Rb7 Kd8 d7 Bc5 Nd6 Bg8 Ne4 Ke7 Rb8 Bh7 Rb7 Kf8 d6 Nd5 Rb6 Bg1 Nhf2 h1Q d8Q+ Kg7 Qd7+ Kf8 Qe6 Qg7 d7 Rc7 Qe5 Qh3 Qc3 Ke7 Nh1 Be3 Rba6 Ba7 Qe3 Rc8 Rb6 Rf8 Nh4 Qhf1 Ng2 Rf5 Kc6 Rf7 d8Q+ Ke6 Qa8 Ke7 Qh8 Rg5 Kb5 Nc3+
1RnbB2Q/2RN3n/q1K1p2k/Qn6/1r3rP1/2pP2Pp/3qBQ1B/N4bq1 w - - 0 1 legal: proof: e4 d5 b4 a5 c4 axb4 cxd5 g5 h3 g4 hxg4 f5 Qb3 fxe4 Qf3 Qd7 Qd1 Qd8 Ke2 Kf7 Ke3 Kg6 Kd4 c5+ Ke5 h5 a4 b5 f4 c4 d6 e3 Kd5 b3 d7 b4 a5 h4 f5+ Kh6 a6 b2 f6 b3 f7 e2 a7 e1Q Nf3 c3 Be2 h3 Qc2 Nc6 Na3 b1N Ne5 Qb6 d8Q b2 Nd7 Rb8 a8B Na7 Bc6 Qa6 Qa5 Rb4 d3+ Qd2 g3 Bb7 Ra2 Bg7 f8Q Nc8 Rf1 Rh7 Rf7 e6+ Kc5 Nf6 Qh8 Ba8 Ba4 Bg2 Bb5 Qf4 Be3 Bf1 Bg1 Qd2 Bh2 Rf4 Qc1 Rb4 Nc2 Na3 Qe1 b1Q Qf2 Qa1 Bc6 Nb5 Rb2 Qae1 Na1 Rf4 Qf3 Qf2+ Qe3 Qg1 Qf2 Rb4 Nb6 Rf4 Be8 Bf8+ Kc6 Be7 Rb3 Bd8 Rc7 Rb4 Qg8 Re7 Qh8+ Nh7 Rb1 Rf7 Rb2 Qa7 Nd7 Rff4 Qe3 Re4 Qed4 Nbd6 Rb8 Nb5 Qe3 Rb4 Qf2 Qa6+
QNqN2r1/2QR3q/4p1Pn/bp5b/n1P1R3/b3K1p1/kB2r1PR/3BrB2 w - - 0 1 illegal: No possible last move, all moves rejected
1q2bR1B/1B4R1/3pp1KP/r3Q3/Nb1Q1RN1/1rp5/P1n1qPq1/nr1N1k2 w - - 0 1 illegal: No proof kernel
4Qr1b/2b2R1N/nkPN1P2/1rnR2K1/2B3p1/p3BpP1/B3R2b/Qq3q1r w - - 0 1 illegal: No proof kernel
bKBQQr1b/5bN1/2p2B1p/1RNq2p1/n3r3/6PQ/Pr1knRP1/R1q5 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 a5 Qb3 Qg5 Qd1 Qg3+ hxg3 axb4 Kf2 Ke7 Kf3 Kf6 Ke4 b5 d4 g5 d6 c6 d5 h6 d7 b3 d8R b2 e3 f3 d6 b4 d7 b3 Kd4 Kf5 Kc4 Ke4 Na3 b1Q Rh2 f5 Nh3 b2 Qe1 f2 Nb5 f4 Rh1 f3 Nd4 Na6 Nf5 Nc5 Nf4 Ne7 Nd3 Bg7 Rf8 Ng6 d8Q Na4 Rg1 Bd4 Ng7 Bb7 Rh1 Nf4 Nc5+ Ke5 e4 Ne2 Bd2 Qc1+ Bc3 b1R Rf4 Rb3 Rb1 Rb6 Rb5 Re8 Kb4 Rb8 Ka5 Ba8 Qd1 R6b7 Ka6 Rf8 Qc8 Re7 Qh3 Ree8 Ka7 Qd2 Ra5 Rb2 Rb5 Qd3 Rf7 Qc4 Qd3 Qd5 Rg1 Rb1 Ba1 Rb2 Qd2 Re6 Qa5 Bc3 Qd8 Kd4 e5 Ke3 Kb8 Kd2 Rh1 Ree8 e6 Bf6 e7 Bc3 Nh5 Bh8 Rf5 Nd4 Bc4 f1B Ng7 f2 Rf3 Ne2 Rg1 Qd7 Be6 Qd5 Bd7 Nf4 Be6 Bc4 Bc8 f1Q Rf2+ Ne2 Rh1 Qc1 Rhf1 Rb1 Bf6 Rb2 Rg1 Rf7 Rh1 Ref8 e8Q Re7 Re1 Re4 Ref1 Qd7 Rg1 Bf7 Rh1 Qd5 Rg1 Qc3 Ra1 Qc1
1Q4RB/n3bRK1/bPNp4/2N4k/2rn1p2/n3B3/2QPpPb1/RqBq2r1 w - - 0 1 legal: proof: b4 h5 g4 b5 gxh5 c6 a4 Qc7 axb5 Qf4 b6 Qc7 b7 Qd8 e4 Na6 e5 Nc7 e6 Nxe6 b5 Nf4 Bc4 Ne2 b6 Rh6 Ba6 Rh8 Bb5 cxb5 b8B g5 c4 e5 h4 a5 h6 f5 h5 Kf7 c5 a4 c6 f4 c7 g4 h7 b4 h6 Kg6 Ra2 a3 Bb2 e4 Nf3 b3 Qc1 e3 Nh4+ Kh5 Nc3 g3 Ne4 g2 Nc5 Ne7 Ra1 a2 Qc2 Ba6 c8R Nd4 Bc1 b2 Bd6 Rg8 h8Q b1B h7 Nec6 Nf5+ Qh4 Rh2 Na7 Ne7 Rg4 Nc6 Be7 Rd8 Rc8 Rg8 Rg5 Be5 d6 Rh1 Rg3 Rg1 Qh3 Rf8 Qd7 Rf7 Qf5 Qe8 Qd3 h8B Rc7 Qb8 Qb3 Qb2 Be4 Qc2 Qb1 Beg7 Ndb5 Bd4 Na3 Rf1 g1Q Kd1 Qh1 Rg1 Bg2 Ke1 Nc4 Ke2 Rg5 Kd3 e2 Be3 Na3+ Kd4 Rg8 Ne4 Rcc8 Kd5 Rg5+ Ke6 Rg4 Ne5 Rc4 Nc6 Rg3 Nc5 Rg5 Bcb2 Qd1 Bc1 Rg3 Rb1 a1N Kf5 Nb3 Ra1 Bf8 Kf6 Nd4 Rc7 Qh3 Rg7 Be7+ Kf7 Qf5+ Kg8 Rh3 Rf7 Rh1 Kg7 Qd3 Qb3 Qb1 Qc2 Bf3 Kh7 Bd5 Rg8 Bg2 Kg7 Rg1
1bKr4/1B1R4/pPbRpQq1/P2B4/nQr4N/1P1rp1Rq/2nb4/1k3NQ1 w - - 0 1 illegal: No possible last move, all moves rejected
q3b1rR/n2K2P1/2N2RrP/q1QQpp2/2R1Q2b/5B2/2p2P1N/kn1nB1b1 w - - 0 1 illegal: No proof kernel
rknKQr2/3B2P1/1P2p1B1/2n1P1N1/B3R1nb/QR1r1p2/R2p2b1/N2qq3 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h6 g6 Qc7 g7 Qd8 g4 Rh7 g5 Rh8 g6 Nf6 Bf4 Ng8 Bg5 hxg5 Kd2 a5 Kd3 d5 e4 Kd7 h4 Kc7 c4 f5 b4 f4 e5 e6 c5 a4 b6+ Kb7 c6+ Ka6 c7 Kb7 h5 f3 b5 g4 h6 g3 h7 a3 Qa4 a2 Rh4 g2 Nh3 g1Q Ng5 Ra5 Na3 Nd7 Nc2 Ne7 g8B Ra8 g7 Nf6 Re4 Ng4 Bf7 Rg8 Be2 Qe1 h8Q Bd7 c8B+ Kb8 b7 Be8 Rb1 a1N Bd7 Nc8 Bg6 Nb3 Rb2 Be7 Bd1 Rf8 Na1 Bf6 Qa3 Nc5+ Kc2 Be7 Ra2 d3+ Kb2 d4 Ba4 d2 Kc2 d3+ Kc3 d1R+ Kd4 Ka7 b8R Rd2 Nh7 Bh4 Ng5 Qc7 Kc4 Qd6 Kb4 Qd5 Ka5 Qb3 Bh7 Bh5 Bg6 Qbd1 Rb6 Nh6 Qg8 Bg4 Qf7 Bh3 Qe8 Bg2 Rb8 Ng4 Rb6 Rb8 Rb7+ Ka8 Rb6 Ne7 Rb7 Rc8 Kb6 Rb8 Kc7 Nc8 Rb6 Ka7 Kd8 Ra8 Rd6 Kb8 b6 Re2 Rd5 d2 Rd3 Re3 Rb3 Rd3
1Q4b1/5prR/1KN1N1p1/1PQQbk1P/4pPR1/B1B1q3/1r2nbnq/2Rq4 w - - 0 1 legal: proof: b4 d5 e4 dxe4 g4 h5 gxh5 c5 c3 b6 Bc4 b5 Bb3 c4 a4 cxb3 axb5 Bg4 Ra2 Bh3 Ra1 Bc8 Ke2 Kd7 Ke3 Ke6 d4 a5 h4 b2 f4 a4 b6 a3 c4 a2 d5+ Kf5 Kd4 e3 Kc5 e5+ d6 e2 b5 e1B b7 e4 h6 Ra5 h7 Bg3 Nh3 Nc6 b8Q Nh6 Nd2 b1Q Nb3 Qc2 Ba3 Nd4 Ng5 Bf2 Ne6 Ng4 Rc1 Rg8 h8B a1Q h5 Ra4 Rh4 Ne3 Na5 Ne2 Rg4 Rb4 Nc6 Ng2+ Qd4 Qe7 Kb6 Rb2 c5 Qd3 d7 Qh4 d8R Bd6 Qc4 Be5 Qd5 Qe3 Na5 Kf6 Rc2 Rb1 Ng5 Bf5 Ne6 Bh7 Rf8 Qad4 Rc1 Kf5 Re8 g6 Bf6 Rg7 Rh8 Bg8 Rh6 Qd1 Rh7 Nd4 c6 Qhh1 c7 Qh2 c8Q Ne2+ Qcc5 Rb3 Nc6 Rb2 Bh4 Bg1 Be1 Bf2 Beb4 Rd2 Bc3 Rb2
B2n2b1/2nKp1pQ/NbB2B1Q/1q1r3r/R2q1PkN/2P1p1q1/6RP/2Q1n3 w - - 0 1 illegal: No possible last move, all moves rejected
5N2/1qQpn1R1/k4nB1/1N1b1N2/P2q2pB/1bb3pP/Q2RPr1r/1Qr3K1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 f5 a4 g5 c4 b5 c6 f4 c5 b3 c7 b2 c6 b4 e6 f3 e7 b3 Bh3 Nf6 Nc3 b1Q Ra2 b2 Nb5 Bb7 c8Q Bg7 c7 g3+ Kf1 f2 Bf5 g4 Bg5 Ra5 Nh3 Bd5 Bh4 Nc6 Nf4 Qa1 Ne6 b1B Qb3 Qd4 Rd2 Bc2 Qb8 Qc8 Qa2 Bcb3 Nf8 Ra8 Qb6 Qb7 c8N Rh5 Qc7 Bh8 Be4 Rf5 Kg2 f1R h3 Rc1 Rf1 Rf2+ Kg1 Bg7 Nb6 Ra5 Nc4 Rh2+ Ne3 Bg8 Na7 Rf5 Nb5 Rff2 Nf5 Bgd5 Qb1 Kf7 Ng6 Ke6 e8Q+ Ne7 Qh8 Kf7 Nf8 Ke8 Qg8 Bh8 Qcc2 Kd8 Qca2 Bc6 Qc4 Kc8 Bd3 Kb8 Qc3 Bcd5 Qc7+ Ka8 Rb2 Ne4 Ng7 Qc5 Rd2 Rf4+ Nd4 Ka7 Bc2 Qc4 Nb5+ Ka6 Bd3 Ng5 Bg6 Nh7 Nf5 Bc3 Ne3 Rc2 Rf3 Qd4 Rf1 Re4 Rf7 Nf6 Rh7 Rf4 Rg7 Rff2 Nf5 Rc1+
1N1RN3/3pbQ1n/1P1pR2R/r3P1r1/bBPr1n2/nB4KQ/3q1p2/kq3B2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 a4 exf4 axb5 Bg7 d4 Bh6 d5 Bf8 d6 cxd6 Kf2 Ke7 e4 Ke6 g4 Ke5 c4 a5 b4 h5 g6 f5 g5 a4 g7 h4 g6 a3 b6 f3 b5 f4 b7 a2 b6 h3 Be3 h2 Na3 Nc6 b8R Nf6 g8Q Nb4 g7 Be7 Qb1 Ra5 Bc5 Nh7 Qc2 Ba6 Qb3 Nd5 Qd3 Bb5 Qf8 Rg8 Bb4 Ba4 Re1 a1N Ne2 Nc2 Nb5 Na3 Qf7 Qf8 Ned4 Qe8 Rg1 h1R Rd8 Rh4 Rg6 Rg4 Rh6 Rh4 Kg1 f2+ Kg2 f3+ Kg3 Nf4 Nc7 Qf8 Nf5 Qe8 Na6 Qf8 Nb8 Qe8 Bg2 f1Q Re3 Qa1 Bf1 f2 Re2 Qb1 Qf3 Rh8 g8B Rh5 Qg4 Rg5 Ng7 Kd4 Re3 Qf8 Ne8 Qg7 Re2 Kd3 Re3+ Kc2 Re1 Kb2 Re3 Nf6 Bh7 Ka1 Bg6 Rg8 Re2 Rgd5 Qh3 Nh7 Re3 Qgb2 Re1 Rf8 Bh5 Rd4 Bd1 Qd2 Bb3 Qbc1 e5 Qb1 Re6 Ng6 Re4 Rg8 Rh4 Rg7 Rh6 Nf4+ Qg6 Rf7 Qg7 Rf5 Qf7 Rg5+
1K1Q4/2PnRrB1/2b1r3/1QR1n1q1/1b1Qn1pN/2pPN1p1/6P1/b1kq2NB w - - 0 1 illegal: Other
b2B2nR/Q1P4n/R1n3b1/r3PpRQ/1q1Qbr1K/1p1B1PN1/1p2q3/3Nk3 w - - 0 1 illegal: No possible last move
q4BB1/rQP3K1/2bn3P/PpbB1p1q/1N3Qr1/pRq4k/R3Q2N/b3n3 w - - 0 1 illegal: No possible last move
b1K3Q1/2Pn3Q/N1p2PB1/1pr2BP1/1bq3Qn/2R4N/k1qR1p1n/1bB4r w - - 0 1 illegal: No proof kernel
5NB1/b1P1np2/2Rq2QP/k2b4/2pnq1P1/r1K2p1Q/Q4Br1/rN3BbR w - - 0 1 illegal: No proof kernel
R7/Rnp2BQ1/b3N2b/1qP2k1B/2rQ1Bn1/2p1r1n1/1pRPqP2/KN4r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 gxh5 Ra5 c5 Ra6 Qb3 Ra8 Qc4 dxc4 Kd1 Kf7 Kc2 Kf6 Kb2 e5 h4 g5 a4 b5 a5 g4 h6 e4 h5 g3 h7 e3 a6 b3 a7 e2 h6 e1Q Be2 b4 Bf1 g2 Nf3 g1N Nd4 Ne2 Ne6 Ng3 Be2 Qd7 Bh5 Nc6 Rh3 Ke5 f6 Nd8 f7 Ba6 Ra4 Bg7 f8Q Nf6 Ka1 Qb5 Bb2+ Kf5 Be5 Nb7 Bf4 Re8 a8B Qe2 Qe7 Bf8 Qg7 Ng4 Ra2 Rg8 h8R c3 h7 Re7 Rh1 Re8 Qd4 Bh6 Rc1 Rg7 Ra4 Rd7 Qg7 Rd4 Rc2 Rc4 Rg8 Re7 h8Q Re8 Qd4 Re7 Qhg7 Re8 Nd8 Re3 Ne6 b2+ Ka2 Na5 Bd5 Nb7 Rb8 Nh2 Ra8 Ng4 Na3 b1R Ra7 Rd1 Nb1 b3+ Ka1 Rg1 Raa2 Nd8 Ra8 Bc8 R2a7 Ba6 Ng5 Nb7 Bdf7 Rb4 Ne6 Ra4+ Ra2 Rc4 Rc2 b2+
1bqNqN2/1P2p2p/1n3K1P/Q2RP1Br/2p1QB2/n3R3/1nb1rR2/1k3b1N w - - 0 1 illegal: Other
6n1/rpqqNN1k/4B2P/PQn2pp1/K2Br3/1Q1R1P2/b2B1nr1/2bRN3 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 gxh5 Bb4 Bd2 Bd6 Bc1 Bf8 a4 f5 h4 Kf7 e4 d5 a5 g5 h6 Kg6 h7 c5 e6 d4 e5 c2 Kd2 d3 Kc3 c4 h5+ Kh6 e7 d2 Kb4 c3 e6 Qd5 Ka4 Ra7 e8N Qd6 e7 Qd8 Nd6 Ra6 e8Q Ra7 Rh3 Be6 Bc4 Na6 Qb5 Qd7 Rd3 Bf7 Qf3 d1N Bd2 c1Q Be6 c2 Nc3 Bg7 Nd5 Bb2 Qe3 Kg7 h6+ Kg6 f3 Nf2 Ne2 Ba3 Qb6 Bb2 Nd4 Ba3 Bb4 Qf4 Rh1 c1R Nc2 Rg1 Ne1 Rg2 Rg1 Qc1 Bd2 Qcc7 Rh1 Bc1 Rf1 Nf6 Rh1 Rg8 h8B Kh7 Ne7 Re8 Rf1 Ng8 Bd4 Qdd8 Qb3 Qcd7+ Q6b5 Q8c7 Bc4 Be6 Nf7 Bd5 Nc8 Re4 Ne7 Bc6 Be6 Bd5 Nc2 Bc4 Rd1 Bd5 Ne1 Bc4 Qb4 Ba2 Qb3 Nc5+
3B1N1k/1p2qQ2/bn1pKN1P/q1pP4/BQRPb3/3n4/q3rRB1/1n2rN2 w - - 0 1 legal: proof: g4 e5 b4 h5 gxh5 a5 f4 axb4 d4 exf4 d5 Bc5 c3 Bd4 cxd4 Ra6 Qd3 Ra3 Qd1 Ra8 Kf2 Kf8 Kf3 c5 Kg4 g5 Kf5 Kg7 e4 f6 a4 g4 h4 g3 a5 g2 e5 d6+ e6 b3 a6 f3 a7 b2 Nc3 b1N Ra4 f2 Ne4 Nd7 e7 Qc7 e8B Ne7+ Ke6 f5 Rh2 f4 Ne2 g1Q Bg2 f1B Qe1 f3 Rc4 f2 Nf6 Ng6 Qb4 Nge5 Bg5 Nd3 Ng3 Nb6+ Bd7 Rd8 h6+ Kh8 h7 Rg8 h5 Re8+ Kf7 Rb8 a8Q Re1 Qa6 Be2 Ke6 f1Q Qa8 Qf3 Nf1 Qgf2 Qaa3 Qf4 Qc1 Q4g3 Qf4 Ra8 Qf5 Ra2 Qg6 Rd2 Qf7 Qgf3 Ne8 Qf4 Bd8 Rc2 Nf6 Qd2 Qa3 Qa5 Qb4 Qg1 Bh1 Qg5 Rf2 Qc1 Bg2 Qb2 Qg6 Qba2 Qf5 Kg7 h8N Rd2 Ng6 Rb2 Nf8 Kh8 Ne3 Bf1 h6 Rbe2 Kf7 Qb8 Ba4 Qc7+ Be7 Bd7 Bd8 Bb5+ Ke6 Ba6 Be4 Bg2 Nf1 Bf3 Qg6 Bh5 Qf7 Bg6 Ne3 Bh7 Bg2 Be4 Nf1 Qe7+
k6K/PRRnR2Q/5q2/P1B2p1n/2r3p1/1q2NBpr/2P2BrQ/1N1bb1n1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 fxe5 c5 d4 cxd4 Kf2 f5 Kg3 b5 Kf4 d5 a4 Kd7 h4 Kc7 e4 Kb7 a6+ Ka7 a5 g6 h5 d3 h6 d2 h7 g3 e6 g5+ Ke5 g4 e7 d4 e8R d3 Re7+ Qd7 Ne2 b4 Nec3 b3 Be2 b2 Bf3 Nf6 Nd5 Nh5 Qe2 d1N Ne3 d2 Qh2 Nc3 Re1 Qb7 Rc7 d1R Bd2 Ne2 Bb4 Rd4 Ra3 Ng1 Rb3 Bc5 Re2 Bb6 Bc5 Nd7+ Ke6 Kb8 Kf7 Rc4 e5 Qc6 e6 Bb7 e7 Ra7 Rb4 Ka8 Rb5 Rd8 e8Q Qf6+ Kg8 Bc6 h8B Rb7 Nc3 b1Q a7 Qb3 Nb1 Be4 Qf8 Bd3 Re1 Be2 Kh7 Bd1 Qf7 Re8 Bg7 Re5 Kh8 Rd5 Qg6 Rd2 Qh6 Rg2 Qh7 Qc6 Bgf8 Qd6 Bd4 Bc5 Rb6 Bb4 Rb5 Qc6 Bfc5 Rb6 Re2 Be1 Rb4 Ra6 Rbb7 Qd6 Nd5 Qe7 Bf2 Rh6 Re3 Qd6 Re7 Qc6 Ne3 Qf6+ Kg8 Ng7 Kh8 Rh3 Qh6 Nh5+ Qg7 Qfb6 Qh7 Qf6+
N2n2b1/P2q1k1r/1Qp1R3/1K4Qq/4NbB1/5pQr/N1P1P1bp/2qnBR2 w - - 0 1 illegal: No possible last move, all moves rejected
K2b3B/Pp3r2/1PbNQ2R/nnr2pnN/1q4R1/p1QB1k2/B2P2b1/2Q1q3 w - - 0 1 illegal: No proof kernel
3QRNB1/p4PBn/b4Qr1/2R1qNN1/Pq1p1pb1/n7/n3r1kP/3KR2r w - - 0 1 illegal: No proof kernel
K2b2B1/pP1RR3/n5P1/k1r1QP1r/3BQB2/pb6/bN1nq2p/2q1rNN1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kd7 Ke3 e5 Ke4 c5 b4 Kc7 d4 Kb6 g4 h5 f4 h3 g5 h2 g6 a3 f6 c4 b5 c3 f5 h4 d6 h3 Kd5 e4 d7 e3 f7 e2 Qa4 e1Q Nd2 c2 Bc4 Na6 Nf1 Qee8 Bf4 Qde7 d8B+ Qc7 Re1 c1R Re7 Bg7 f8N Rb1 Nd7+ Kb7 b6 Re1 Ne5 Bd7 Nd3 Rh5 Nb2 Bf6 Qc2 Bb5 Qe4 Ba4 Rd7 Bg5 Bf6 Rc8 B6e5 Bd8 Re7 Nb8 Bb3 Ka6 b7 Qc3 Kd6 Qc1 d5 Ka5 Bd4 Rc2 Bc4 Bb3 Rd7 Bf6 Kc7 Bd8+ Kc8 Ba2 d6 Na6 Re7 Nf6 d7 Nb4 Kb8 Na6+ Ka8 Bb3 Qd3 Ne4 Bg8 Nd2 Qe4 Rc5 Qe5 Qf7 Qe4 Qfc4 Qe5 Qe2 Qe4 Bb6 d8Q Bc7 Qd6 Bd8 Qde5 Ba2 Nf3 Bb3 Rg1 h1B Rg3 h2 Ng1 Ba2 Rd3 Bg2 Bf2 Bb3 Rdd7 Ba2 Bd4 Bf3 Qd3 Bfd5 Qde4 Bdb3
2N3B1/1NN1P1b1/5Kb1/1qp1PnR1/P1Rpr2B/1p1Qn3/bbQ1b3/1Q2r2k w - - 0 1 illegal: No proof kernel
NR1BQ2N/1BQbp1qn/2r1rr2/3pPpk1/brP5/n2BK3/r5P1/5QR1 w - - 0 1 legal: proof: f4 c5 a4 g5 d4 gxf4 h4 b5 axb5 cxd4 Na3 Bh6 Nb1 Bg5 hxg5 Bb7 Rh6 Ba6 Rh1 Bc8 Kd2 h5 e4 a5 b4 d5 c4 h4 b6 h3 b5 h2 g6 a4 e5 f3 g7 f2 b7 d3 b6 a3 Qe2 a2 Nh3 Nc6 b8Q Ra6 b7 Na7 Na3 Nf6 g8B Bd7 Qe1 Nh7 Nb5 Rc6 Rb1 a1R Nf4 Ra2+ Ke3 d2 Bd3 d1B Qc7 f1R b8Q Ba4 Rg1 h1R Ng6 Rff6 Bd2 Rh6 Qf1 Rfe6 Be1 f5 Ba5 Rf6 Be6 Qc8 Nd4 Nb5 Qa8 Rg8 Nh8 Na3 Rb8 Kf8 Bb6 Kg7 Nb5 Qf8 Ba5 Rhg6 Bb6 Kh6 Ba5 Be8 Bc8 Bd7 Bb7 Rce6 Na7 Kg5 Nc8 Qg7 Nb6 Nb1 Qa6 Rc8 Qb5 Na3 Na8 Rb6 Qbc6 Rb4 Qb5 Be6 Qe8 Bed7 Qc6 Re6 Bd8 Rgf6 Qd6 Rc5 Qc7 Rcc6
3nk3/n1Kp2qb/Q2RP1nP/1pP3Q1/1QN1rb1n/N4nNB/1p3B2/1Rr5 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 g5 Kf3 f5 c4 b5 h4 g4+ Kf4 g3 e4 d3 a4 d2 a5 b3 a6 b2 c5 g2 a7 Be7 h6 Nc6 h7 Bd6 h5 Nge7 h6 Bb7 Na3 Nc8 Qa4 d1N Qb4 Nc3 Ne2 g1N Ng3 Qe7 Bh3 Qg7 Rb1 Nf3 Be3 Nh4 Rhd1 Nd8 Bf2 Bd5 Rd2 Bg8 Rd5 Bb8 Rd6 Bc7 e6 Ne2+ Ke3 Nf4 e7 Bb8 e5 Nfg6 Kd4 f4 Ke4 f3 Kd4 Kf7 Kd5 Bc7 e8N Bb8 Be3 f2 Bd4 f1N Bf2 Nh2 e6+ Kf8 Rc6 Bf4 Nd6 N2f3 Ndc4 Ke8 Rd6 Rb8 a8Q Na7 Qc6 Rb6 Qc8 Ra6 Qb7 Ra4 Qb6 Bf7 Qa6 Rg8 h8Q Rf8 Qh7 Bg8 Qh8 Bh7 Qg8 Bd2 Rb6 Bc1 Kd6 Be3 Kc7 Bc1 Rd6 Bf4 Qc3 Rb4 Nb6 Re4 Qb4 Qf7 Qg7 Qe7 Qe5 Qg7 Qg5 Rf5 Nbc4 Rd5 Ra1 Rd1 Rb1 Rc1
B1q2NR1/QP2N1KP/p2Ppr1p/B6k/4nr2/Q1n1n2n/Q2b1R2/1b4Bn w - - 0 1 illegal: No proof kernel
1b4r1/BpQ1Q3/kq1R4/n3B1n1/1nRp1n1K/1N1P1PP1/p3B1Q1/1r1N1nb1 w - - 0 1 illegal: No proof kernel
3b4/1NRBr2k/1b1K3b/3Prbp1/PBBNrQ1q/4ppnR/2P4R/2Q1n3 w - - 0 1 illegal: No proof kernel
1QbbNQ1Q/8/2r3P1/Bn1n4/2p1b1Pr/BBP3p1/2q1RpR1/K1b2Nrk w - - 0 1 legal: proof: g4 b5 d4 h5 a4 e5 axb5 exd4 Qd3 g5 f4 h4 Qg3 hxg3 fxg5 Bh6 Ra6 Bg7 Ra1 Bf8 Kd2 Ke7 e4 Kd6 b4 Ke5 h4 Kf4 c3 a5 g6 d5 e5 f5 e6 c5 e7 d3 e8Q c4 b6 d4 b7 a4 h5 a3 h6 a2 h7 Nc6 b5 Nge7 b6 Ra6 Nh3+ Kf3 b8B f4 b7 Na7 Ba3 Rc6 Kc1 d2+ Kb2 d1R Rg1 d3 Qf7 d2 Nf2 Nb5 Bc7 Qd3 b8Q Nd5 Ne4 Be7 Ba5 Bd8 Nd6 Re1 Ne8 d1B Qg7 Bc2 Be2+ Kf2 Qf8 f3 Bd1 Qd2 Rh1 Kg2 Rh2+ Kg1 Rg2+ Kh1 Re2 Be4+ Bc2 Qd1 Bb3 f2 Nd2 Rf1 Rb1 a1B+ Ka2 Bb2 Rc1 Rg8 Ra1 Rg7 h8Q+ Rh7 Rc1 Qc2 Rd1 Bc1+ Ka1 Rh4 Rde1 Kg2 Rd1 Rfh1 Rg1+ Kh3 Rg2 Rf1 Rg1 Kh2 Rg2+ Kh1 Qbe5 Ba6 Qb8 Rg1 Nf1 Bc8
1Q3n2/RQ4R1/br1N2PR/rp2nrbP/B3N2k/p3pr1q/2KPb3/1Q4B1 w - - 0 1 illegal: No proof kernel
4NR2/1b2R1n1/2nP1p1r/p1NR3Q/1b1PP3/K1Bb1q1N/3n1p1k/nr1Q1B2 w - - 0 1 illegal: No possible last move
R1NQ1bn1/2BK4/B1p1n3/P2nbq1B/rp1k1Pp1/b3RQ2/2b1Pr2/R5N1 w - - 0 1 illegal: No proof kernel
1n2n3/3r4/R1p1Nrp1/1kBQN2N/bp2PPP1/1B1b1b1K/2qnn1Q1/R6R w - - 0 1 illegal: No proof kernel
1N1KQ3/1kB3Nr/1P2B1nb/n1p1nn2/1P1Ppq2/pb1N3R/2QrB3/2r1R3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 Kc7 g4 h5 f4 h3 b4 h2 d4 e3 d6+ Kb7 d7 e6 b6 h4 g5 h3 f5 e2 f6 e1N f7 a4 g6 a3 g7 Nf6 g8B Rh7 Be2 Nh5 Nc3 Bh6 Kd6 e5 f8Q e4 Nd5 Nf3 Nc7 Nf4 Ne8 Nc6 Ng7 Ng6 Qc2 Qh4 Be6 Nfe5 Nf3 Qf4 Qe8 Na5 Ne1 Rb8 Nd3 Ra8 Re1 h1N Rb1 h2 Rb3 Ng3 Rc3 h1R d8N+ Ka6 Kc7 Nf5 Nc6 Rg1 Kd8 Kb7 Ba2 Be6+ Nb8 Bb3 Be3 Ba4 Be6 Bb3 Bf2 Rg2 Bg3 Ra7 Bd1 Rd2 Bh2 Ka8 Be2 Rf7 Nc1 Kb7 Rh3 Ne3 Nd3 Rf5 Nc6 Rg5 Nb8 Nf5 Rh1 Rg1 Bg3 Rc1 Re1 Qg4 Bf4 Nf3 Bd6 Nfe5 Bc7 Qf4
1N2k3/bbR3pB/K2Qbn2/1p2n2P/nq4Pn/P1N3p1/2N1RQBr/4R1r1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 b4 axb4 Bb2 h4 fxe5 Be7 Bd4 Bc5 Bf2 Bf8 Bg3 hxg3 e4 c5 Ke2 f5 Kd3 f4 Kc4 b3 Kb5 b6 h4 f3 d4 c4 e6 b2 e7 f2 h5 c3 d6 c2 d7+ Kf7 e8B+ Ke7 d5 c1N a3 Nh6 e5 Bb7 e6 Nd3 Qf3 Ne5 Ne2 Nf5 Bg2 f1B Bg6 Nh4 Nc3 b1N Qf2 Ra4 Bd3 Re4 Nd4 Re1 Nc2 Qc8 d8N Ke8 e7 Nbd7 d6 Qb8 Rh2 Nf6 Nc6 Be2 Ra2 Rg1 Rh1 Bf3 Bh7 Bd5 Rh2 Be6 d7+ Kf7 e8R Bc5 d8Q Rf8 Qd3 Be3 Rc8 Bc5 Rc7+ Ke8 Ra1 Rf7 Qf4 Rd7 Qd1 Rd2 Qf2 Re2 Qd6 Be3 Ka4 b5+ Kb4 Ba7 Ka5 Qd8 Nb8 Qe7 Nd5 Nc3 Re1 Na4 Nc3 Bbd5 Ka6 Ba8 Qdb6 Qb4 Qd6 Nf5 Bb7 Qd4 Qf3 Nh4 Rf2 Qb4 Bd5 Re4 Qg2 Rf4 Rfe2 Rf2 Qf3 Rh2 Qf2 Bc6 Bg2 Bb7+
1BbBrrqn/2N3p1/2bR2N1/P5pk/P1QrPp2/1r1R3B/1n2Kb2/RQ6 w - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 bxa5 d5 c4 h6 g5 hxg5 cxd5 Bf5 Ba3 Bg4 Bc1 Bc8 e4 b5 d4 f5 a4 Kf7 h4 Kg6 d6 c5 d5 f3 d7 b4 d6 f2+ Kd2 f4 Na3 c4 Bb2 b3 Bf6 c3+ Ke2 b2 Nb5 b1R Qc1 c2 Nc7 Nc6 Be5 Nge7 Bh3 Kh5 Nf3 Nb4 Rd1 Rb3 Qb1 c1R Rd3 Qe8 d8R Rc4 d7 Rd4 Bd6 Ng6 Ne5 f1B+ Kf3 Kh6 h5 Rg8 Kf2 Nh8 Ng6 Qf7 Be5 Bc5 Ke1 Rf8 Kd2 Kh7 h6 Qg8 Ke1 Rc4 Rd6 Rd4 Kf2 Bb5 Ke1 Bc6 Ke2 Rc4 Rd3 Bf2 Bd6 Qe6 Be5 Rd4 Bd6 Kg8 h7+ Kf7 Rd1 Bg1 Ne8 Nd3 Ne7 Ra7 Bb8 Ng6 h8Q Nb2 Rd3 Bf2 Qh5 Rab7 Qg4 R7b5 Nc7 Re5 Qgg1 Kf6 Qgc1 Nh8 Qc4 Kf7 Nf5 Kg6 Nh4+ Kh5 Ng6 Rbb5 Re8 Rb4 d8B Qg8 Re6 Rb3 Rd6 Ree8
2n3k1/5pnR/1RbK2P1/1Qrn1r1r/1N6/2qPNp2/rB3QPp/1NRBb3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 a5 Kf3 h5 Ke4 c5 Ke5 c3 e4 h4 b4 f3 b6 c2 d3 a4 g6 h3 b5 c4 b7 a3 b6 c3 Qe2 a2 Ba3 c1R Be7 h2 Bf6 c2 Nh3 Bb4 Nf2 Kf8 Ng4 Be1 Ne3 Nh6 Qf2 Kg8 Be2 Nf5 Bd1 Bd7 Kd5 Qe8 e5 Nc6 b8R Ng7 b7 Ne7+ Kd6 Qc8 e6 Ra5 Bb2 Rf5 Ra8 Ba4 b8N Rhh5 Na6 Be8 Rb8 Qc3 Rb6 Bc6 Nb4 Kf8 Nd2 Kg8 Rb1 a1R Rb5 Nd5 e7 Nb6 Re5 Ra2 Re4 Rfa5 Rh4 Rhf5 Rh7 Rh5 Ra1 Raf5 Nb1 Nc8+ Kc7 Raa5 Ra4 Rac5 Ra6 Ra5 Rb6 Rac5 Na3 Ra1 Nb1 c1N Rg1 Ne2 Rh1 Na7 Kd6 Ra2 Rg1 Nf4 Rh1 Nge6 Rg1 Nd5 e8Q+ Nf8 Qd7 Ne6 Rh1 Ng7 Rf1 Ba8 Qb5 Bc6 Be2 Bd2 Rc1 Be1 Bd1 Nc8#
4K3/1bN1Qp1P/2Q1p1r1/1Rb2N1q/bPk1PR2/B2n2p1/rQ4n1/1n2bB1R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 g5 c4 d5 cxd5 gxf4 Kf2 Kd7 b4 Kd6 h4 a5 d4 c5 e3 c4 b6 a4 b7 c3 h5 c2 h6 a3 h7 f3 Kg3 a2 Kh4 f2 Kg5 g3 Ba3 c1B Qf3 Na6 b8R Bb7 Ne2 Nc5 Nbc3 e6+ Qf6 Ne7 Nb5+ Kd7 d6 Kc6 d7 Kd5 Qg7 Rg8 Kf6 Qa5 d8Q+ Kc4 e4 Nf5 d5 Ne3 d6 Bd2 d7 Be1 Ned4+ Nd3 Nc7 Qh5 Qc8 Bc5 d8Q Ng2 Qe7 Ra4 Rd1 a1N Nf5 Nb3 Qcd7 Ra7 Qc6 Nd2 Rh4 Nb1 Rf4 Ba8 Rb5 Bb7 Qg4 Ra4 Qe2 Rg7 Qb2 Ra5 Qed6 Rg6+ Ke7 Ra6 Ke8 Ra4 Be2 f1B Qe7 Nd2 Ra1 Nb1 Bf3 Be2 Bg4 Bd1 Be2 Ra7 Bf1 Ba4 Be2 Nd2 Rd1 Nb1 Rc1+ Bc3 Rh1 Be1 Bf1 Bc2 Qbf6 Qh2 Bc1 Ra2 Ba3 Qh5 Qb2 Ba4
B2BQ3/r2KPnR1/2R2p1p/N3p3/rr1b2P1/krPQ3N/q1B3b1/n2R2b1 w - - 0 1 illegal: No proof kernel
bRKN2rk/nRB1P3/rP4B1/qr2p3/2P1n1p1/4NB1n/Q1N1p2b/3n2Q1 w - - 0 1 illegal: No proof kernel
bR4Nr/r2P3K/3kb2b/3bn1p1/1pPQnBQp/R3q3/1rRQ2P1/2B2N2 w - - 0 1 illegal: No possible last move
4N1B1/Qrqp1pp1/PNbrnB1n/3P3k/8/b1Q2P2/4N1R1/rnRB1Kr1 w - - 0 1 illegal: No possible last move, all moves rejected
6bk/n1pRbb1N/p1BBNpq1/4QKP1/n2P1Q1R/1Nb1rr1P/2Q5/4r3 w - - 0 1 illegal: No proof kernel
6K1/1qp1pBrB/2Pkb1P1/BnR2p1N/6Q1/2R1b1P1/r4rrN/bQ2n2Q w - - 0 1 illegal: No possible last move
3BrQ2/1Pn1n2p/b2R4/Rnk1n2p/4QP1r/1r1Bp2K/1R1bPqNN/5Q2 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 b4 h4 b3 g5 Qd6 g6 fxg6 h5 gxh5 axb3 Kd7 b4 Ke8 b5 Qd8 b4 Kd7 d4 Kd6 f4 a5 Kf2 e5 Kg3 g5 b6 c5 b7 e4 b5 c4 b6 g4 Na3 a4 Nc2 a3 Bd2 c3 Ne1 e3 Ng2 a2 Nf3 c2 Ba5 c1N Nh2 Na6 b8Q+ Nc7 Qb7 Nd3 Rb1 a1R Rb2 Ne7 Kh4 g3 Qc1 Ne6 Kh3 Ne5 Rg1 Rb8 Qa8 Kd7 d6 Ba6 Qe4 Nc7 d5 Ra3 b7 Rg8 Bb6 Rb3 Qe1 Rg4 Qf2 Ke8 d7+ Kf7 d6 Ke6 Ba5 Bg7 Bb6 Qg8 Ba5 Re8 d8R Bf8 d7 Kd6 Ra8 Kc5 d8Q Qd5 Ra7 Qd1 Qc8 Qe1 Qcf5 Bg7 Qf8 Bh8 Qff3 Qf2 Rh1 Nc4 Ra8 Nd6 Rd8 Ndb5 Rd6 Bc3 Rg1 Na8 Bd8 Bd2 Nh4 Ng8 Bg2 Ne7 Ra1 Nac7 Ra5 Qe1 Qf1 Qf2 Bf3 g2 Qa4 Bb4 Be4 Bd2 N2f3 Rb4 Bd3 Rb3 Kh2 g1N+ Ng2 Ra3 Qe4 Rb3 Ng5 Nf3+ Kh3 Ne5 Nf3 Rg7 Nh2 Rg3+ Kh4 Rg4+ Kh3 Rh4+
3qNQ1n/1p1bR2N/2Q2Bn1/R4KP1/p2pr2b/1R1b3r/BP1kP1Br/6b1 w - - 0 1 illegal: No possible last move, all moves rejected
1BnK4/p1b5/1n2Q1R1/b1Q1bB1q/3Np3/RpnrPr1n/3QPP2/1k1N1R2 w - - 0 1 illegal: No proof kernel
2Bk3n/pQn1R1Nq/P1PP4/2r1Nb1B/1Q1n4/1pb1K1Np/6R1/R1nr2b1 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 Bb2 g5 Bd4 f4 Be3 fxe3 hxg5 Bg4 Bc4 Bd7 Bf1 Bc8 Ke2 h5 f4 e5 g4 b5 c4 h4 a4 b4 d4 h3 f5 b3 c6 Nf6 c5 Nbd7 c7 Ke7 d5 Ke8 a5 Rh4 d6 Qe7 g6 Bh6 g7 Nf8 g8R Qh7 a6 Nd5 f6 Bf5 c8B Kd8 f7 Bf4 g5 Nc7 g6 Bh2 g7 Rb8 c6 Rb5 Qd4 Rc5 Nf3 Rf4 Kd1 e2+ Kd2 e1B+ Ke3 Bc3 Qb4 Rg4 Be2 Rg1 Nbd2 Re1 Rh8 Rd1 g8N Ng6 Ne7+ Ne8 Rg8 Nh8 Rg2 Nc7 Nh4 Na8 Bh5 Nc7 Ke2 e3 Nhf3 e4 Re1 Qh6 Ne5 Qh7 Kf1 e2+ Kf2 e3+ Kf3 Bb2 Ne4 Bd4 Ng3 Bc3 Rf1 e1N+ Ke2 Nc2 f8Q+ Ne8 Qg7 Nc7 Kf3 e2 Re1 Nd4+ Ke3 Bb1 Nef5 Bc2 Reg1 e1N Re2 Bb1 Rgg2 Nd3 Qf7 Nc1 Ng7 Bf5 Re1 Nce6 Qfb7 Nc7 Rf1 Bc2 Rf7 Bf5 Re7 Bg1+
2Nnr3/nQBn4/N3RpN1/1Pr3n1/QQ1P1PR1/2pB4/2K1pq1k/1q3b1b w - - 0 1 legal: proof: c4 g5 d4 d5 a4 dxc4 h4 b5 axb5 gxh4 d5 Bg7 e3 Bd4 exd4 Ba6 Ra5 Bb7 Ra1 Bc8 Kd2 Kd7 g4 c5 f4 h5 b4 a5 g5 e5 d6 Ke6 b6 Kf5 d7 c3+ Kd3 a4 b7 c4+ Kc2 e4 b5 a3 g6 a2 g7 e3 Na3 e2 Bd2 Kg4 Rh3 Ne7 g8N Nbc6 b8Q Na7 Qb1 Nec6 Re3 h3 Kc1 c2 Re6 Kg3 Kb2 c1N Qb7 h2 Qc2 h1B Kc3 h4 Qb1 h3 Nf3 h2 Qc2 Rh5 Qa4 Rc5 Ne5 Nd3 Ng6 Nde5 Bg2 Qh4 d8Q f6 Qf8 Nd7 Nc2 Nd8 Rg1 a1N Qd6 Nb3 Be4+ Kh3 N8e7 Qf2 Be1 Nd2 Rg4 Nf3 Nb4 Ng5 Na6 Rb8 Kb2 Ra8 Ba5 c3+ Kc2 Rb8 Qa8 Bb7 Bd3 Bbg2 Qb7 Bf1 Bc7 Bhg2 Qdd5 h1Q Qb4 Ndc6 Ba5 Re8 Nf8 Nd8 Qdb3 Kh2 Nfg6 Be4 Nc8 Bh3 Q3a4 Qc1+ Kb3 Bh1 Bc7 Qa1 Kc2 Bf1 Qaa5 Qae1 Qaa4 Qb1+
2k2n1B/b1n1K1N1/1Pq3Rp/2B1rP1q/pQ1r1N1P/1p1r3R/1Q3B1r/1N3b2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 gxf5 c6 b4 Qd3 b6 Qd6 b7 Qf4 b5 Qd6 b6 Qd8 Bb5 cxb5 Ke2 Kd7 Ke3 e5 c4 g5 d4 a5 f4 g4 h3 a4 d5 b4 d6 g3 c5 b3 f6 g2 f5 Na6 b8B Qe8 f7 Nc7 Qe1 Nf6 Bb2 Ba6 c6+ Kc8 Qb4 Nd7 Ne2 g1R Nf4 Bf1 h4 h6 Rh2 Rg2 Rh3 Rh2 Bc3 Bg7 f8B Qh5 Ra2 Ra5 Rg2 Rd5 Rg6 Rd4 Be1 Bf6 Bf2 Bg5 Be7 Rd8 Bf6 Nf8 Bh8 Nb5 Bc7 Rd7 Bd8 Nc7 Be7 Rc4 Kd2 Rd4+ Kc3 Rd3+ Kc4 e3 Kc5 e2 Be3 e1Q Bf2 Nd5 c7 e4 Kc6 e3 Kc5 e2 Kc6 Bf6 Kc5 Rd8 d7+ Kb7 c8N Nc7 Nd6+ Kb8 Kc6 Be5 Ne8 Qc1+ Bec5 e1R Ng7 Re4 Bg3 Red4 Bf2 Rc8 d8Q Qc4 Qd6 Re8 Qf6 Kc8 Qe7 Bd6 Qe2 Re5 Qc2 Na8 Qb2 Bb8 Nd5 Nc7 Kd6 Nfe6 Ke7 Ba7 Nf4 Qc3 Bd6 Qc6 Bc5 Nf8+
1rb1R1RR/nk6/1pr1bK2/1PB1pp1r/5Pq1/r2B1Q2/PQ2B1n1/1N3N1q w - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 Ne2 a5 Ng1 axb4 hxg5 b3 c3 Bg7 Rh2 Be5 Rh6 Bd6 Rh1 Bb4 cxb4 Be6 Rh6 Bg4 Rh1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 f5 Ke5 h5 g4 h4 d4 h3 f4 b2 g6 h2 g5 e3 g7 e2 g6 e1Q+ Be3 Nh6 g8Q Ra3 Qh7 Qg8 g7 b6 b5+ Kb7 d5 c5 d6 c4 d7 c3 d8R c2 Rf8 c1R Bd3 Rc6 Ne2 e6 Rg1 h1R Ng3 Rh5 Kf6 Qf1 Re8 e5+ Re6 Qg2 Qf3 Qh1 Nf1 Ng4+ Kg6 Ra6 Bc5 Ne3 Kf6 Ra3 Rg4 Ng2 Qg6 Qh7 g8B Qd7 Be2 Qd1 Bf7 Rd8 Qg5 Rf8 Qh4 Re8 Rg8 Rd8 Qh2 Rf8 Nbd2 b1B Rh8 Bc2 Nb1 Bb3 Bd3 Ne3 Qb2 Ng2 Be2 Qe1 Bd3 Qg3 Be2 Bd5 Rg8 Qg4 Rh8 Rc7 Re8 Nc6 Bd3 Rg8 Bg6 Na7 Bf7 Bc6 Bfc4 Bd5 Be2 Kb8 Bcd3 Be6 Nc3 Rc6 Rc1 Rg7 Nb1 Rb7 Rc4 Ka8 Rd4 Rb8 Rdd8 Kb7 Reg8 Nh4 Rde8 Ng2
N4n2/1rN1nb2/pQq1P3/q1bQ2R1/BPp2P1b/Bp3R2/2rK4/NB3b1k w - - 0 1 illegal: No proof kernel
1nk5/1R2n1Pq/Q1r3P1/n1B1bPq1/p1b1BQ1N/2pR1n1K/2Bp2r1/4R2N w - - 0 1 illegal: No proof kernel
KQ1r3Q/3N2p1/kpn3p1/2PB4/1bb3Pn/1B2P1RQ/2R1qNb1/B2rq2b w - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 f4 axb4 fxe5 Bd6 Qd3 Bf8 Qg6 hxg6 c6 f5 Kf2 d5 Kf3 d4 h4 f4 Ke4 f3 c4 b6 a4 f2 e6 b3 a5 d3 c5 d2 h5 d1Q a6 b2 c7 Qe1 a7 Qdd2 e7 Kd7 h6 Kc6 e8Q+ Kb7 h7 Bd6 Ra3 Qed1 Nf3 Nd7 Rh2 Nh6 Ne5 Nf7 Nc3 Rg8 h8Q Nb8 g4 Be7 Qh3 Bg5 Rb3 Q1e1 Nd1 Qe3+ Kd5 b1B Bb2 Nd6 Ba1 Nf5 Bg2 f1B Ra3 Q3f2 Rg3 Nh4 e3 Ka6 Be4 Bd7 Bc2 Bf6 Bb3 Bc4+ Kd6 Bc6 c8Q+ Bb7 Kc7 Be4 Qf8 Qff1 Rc2 Qfe2 Nf2 Bh1 Qd6 Re8 Qf8 Re6 Qh8 Rd6 Nd7 Bc3 Qce8 Bbf3 Qe5 Nc6 Qf4 Kb5 Kb7 Rd1 Qd6 Rf8 Qb8 Bfg2 Ka8 Bb4 Kb7 Rd8 a8B Ne5+ Ka7 Ka5 Bd5 Nc6+ Ka8 Ka6
4q1N1/5p1Q/3N4/BN2QPbK/1r1Pn2R/P5q1/R1b1Bpnp/nkBr2n1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 c4 d5 cxd5 Bd7 b4 Be6 f5 Bc8 Qc2 axb4 Qe4 Ne7 Qg4 Ng8 Qf4 exf4 Kf2 Kd7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 d6 b5 g6 c5 e3 h5+ Kh3 h4 Kg4 f3 g3 c4 d7 c3 g7 f2 a3 h3 Bb2 c2 Bc1 b3 Nf3 b2 Ng1 b4 Be2 b3 Bb5 Be7 Bc4 Bb7 Rh2 Nf6+ Kg5 Nd5+ Kg4 Na6 g8Q Qe8 d8B Nc5 Qh7 Bg5 Qg8 Nf4 Ba5 Rb8 Ne2 Ng2 Ra2 Bd5 Qg6 Rb4 Qh7 Bc6 Rh1 Ba4 Kh5 Rg8 g4 h2 Rg1 Rg6 Re1 Rgb6 Ba6 R6b5 Nbc3+ Kd3 e4 b1N e5 b2 e6 Nb3 e7 Na1 Ne4 Nd2 Nd6 b1Q Nc3 Qb3 Re6 Ne4 Rh6 Qf8 e8Q Qe7 Bf4 c1N Qb8 Ne2 Bc1 Ng1 Qc7 Be3 g5 Qe8 g6 Bf4 g7 Bg5 Bc8 Rb8 Ncb5 Qc3 g8N Bc2 Ba6 Rb1 Bd2 Rd1 Bc1 Rb6 Kg4 Rb7 Rh4 Rb8 Qe7 Rb7 Kh5 Qc7 Nc4 Qg3 Qe5 Rb8 Nc7 Rb4 Nd6+ Kc3 Be2 Bb3 Bb2+ Kc2 Bc1+ Kb1 Ncb5 Bc2
B2b2Rn/BrPNQP1N/3pbbP1/3B2K1/5r2/1b1q3p/1nq1p2Q/k1N1R3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 b4 Ke6 g4 Ke5 c4 h5 b6 a5 g6 e3+ Ke2 h4 Kf3 e2 b7 e1Q c5 h3 g7 a4 c6 a3 b5 a2 b6 d3 g5 Kd4 Kf4 d2 g6 Rh7 Nc3 Nh6 g8B Nf7 Bg2 Na6 b8N Nh8 b7 Nc5 Qe2 d1B Kg5 Bb3 f4 Na4 f5 e5+ f6 e4 Bd5 e3 Ne4 Qc3 Rb1 Re7 f7 a1B Nf6 Nb2 Nh7 Qc2 Qe1 Kd3 Ne2 Ra4 Qb4 Bg7 Re1 Bd4 Qd6 Bb6 Bd2 Rf4 Nc1+ Kd4 Bge4 e2 Be3+ Kc3 Bf3 Ree4+ Qe7 Rb4 Bh1 Ba5 Ba7 Rb6 Na6 Rb5 b8Q Rb7 Nc5 d6 Qa8 Qe8 Nd7 Bd8 c7 Qd3 Ne5 Qeb5 Nd7 Qc2 Bg2 Qbd3 Bh1 Rb5 Qb7 Rbb4 Qb6 Rb5 Qg1 Rb7 Qh2 Rbb4 Ba8 Rb7 Nb6 Bce6 Nd7 Kb4 Bd5 Ka3 Kh5 Nc4 Kh6 Bf6 Ra1+ Kb2 Ra3 Be5 Kg5 Bf6+ Kh5 Rd4 Bb8 Rb5 Bc6 Rf4 Ra8 Kb1 Bb7 Nb2 Ba7 Ka1 Rc8 Rbb4 Ba8 Rb7 Kh6 Bc3 Kg5 Bd4 Qf6 Be7 Rg8 Bd8 Qe7 Bf6+
1k4N1/2pr1p1p/nrR1R1Q1/4N3/2nb2PP/1qB2rB1/2b2Pq1/KBrQ3R w - - 0 1 legal: proof: h4 e5 d4 d5 a4 g5 Qd3 b5 axb5 g4 Qh3 gxh3 c4 exd4 cxd5 Qg5 Ra6 Qf6 Ra1 Qd8 Kd1 Kd7 Kc2 a5 g4 a4 e4 a3 b4 h2 b6 a2 Kb2 d3 e5 d2 e6+ Kd6 e7 d1Q e8R Qd3 b5 Ne7 b7 Bg7+ Nc3 Nf5 b6 Qe7 Nf3 Qe1 Rg1 h1R Bf4+ Qe5 Rc1 Qe4 Bd3 Bd7 Bb1 Nh6 Bg3 Na6 b8Q Bf5 b7 Kd7 d6 Qe6 Qd8+ Kc6 b8B Kb7 Ba7 Rb8 d7 Bg6 Rgd1 Nf5 Qg5 Nd6 d8Q Rf1 Bd4 a1R Qh5 Ra3 Nd5 Re3 Nf6 Qb3+ Ka1 Rfe1 Nh2 Qg2 Rc6 Bc2 Bc3 Nc4 Ree6 Rh1 Qd4 Rhd8 Qg6 Rd7 Ng8 Rg1 Qd2 Bd4 Nf3 Rd3 Ne5 Rf3 Rc1 Kc8 Qe2 Rb6 Qed3 Kb8 Qd2 Re1 Qdd3 Ree3 Rh1 Re1 Qe2 Rc1 Qd2 Nb4 Qd1 Na6
2n4r/Kp4R1/NQ1prr1P/3n4/1P1r1PB1/q2RQN1N/2b1B2p/bk1q3B w - - 0 1 illegal: No proof kernel
2k2q2/Bp1q3n/pQNp1r2/RN1b3n/2Q1rb2/2RK2r1/1B1PP2P/1QN1r3 w - - 0 1 illegal: No proof kernel
RqN2q1n/1pP5/3B3n/pp1B3R/1QQ1K3/1P1b1RqB/1kr2N1P/2q2rb1 w - - 0 1 illegal: No proof kernel
QR3q1Q/P1B1QN1q/b2pprnn/2p2RN1/8/2PB1r1b/k2Kb1bP/5B2 w - - 0 1 illegal: No proof kernel
2b5/Prkr3R/pqn4P/r1qn4/4R2p/N1pQ1QbQ/P1r3K1/BR3BN1 w - - 0 1 illegal: No proof kernel
2K4r/pnN3p1/r1B1Q3/b1P2PRq/1B1Q2b1/rnBpQq1N/R5P1/3r3k w - - 0 1 legal: proof: e4 c5 h4 b5 a4 f5 axb5 Qc7 d4 cxd4 exf5 Qf4 Bd3 Qxh4 Bf1 Qh2 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kd3 Ke5 b4 h5 c4 h4 b6 h3 b7 Qf4 f6 h2 f7 Bg4 b5 Nc6 b6 Na5 Bd2 Re8 Na3 Nf6 Bc3 Nb3 Nb5 Ne4 b8Q+ Nd6 Qc8 Nb7 Ra2 e6 f3 Bb4 f8B Ba5 Bfb4 Rh3 c5 Reh8 Qd2 Qf7 Qb2 Kf4 Nc7 Kg3 f4 e5 Qe6 R3h6 Nh3 e4+ Kc2 e3 Kd3 e2 f5 e1R Qc1 Qh5 Qce3+ Kh4 Be2 Ra1 Bf3 Kg3 Nf4 Nd6 b7 Qh3 b8Q Nb7 Qd8 Rf6 Qee7 Ra6 Q7e6 Qh5 Nh3 Rd1+ Kc2 d3+ Kb2 d2 Ka3 d4 Ka4 d3 Kb5 Ra1 Qdd4 d1Q Bc6+ Qf3 Bd7 Rd6 Bc6 Rd1 Ka6 Ra1 Rc1 h1R Rcc2 Kh2 Rf2 Qe4 Rf4 Rhd1 Rf3 Kh1 Rg3 Be2 Rg5 Bg4 Re2 Ra3 Ra2 Qf3 Qdd5 Nd8 Qdd4 Nf7 Kb7 Nd8+ Kc8 Nb7+ Be8 Nd8 Bd7 Ra6 Bc6 Nb7+
2q1q3/p1NppPn1/Q4bNB/3Rr2k/1q1nB1Nr/R2P4/1Q1Pq3/2K2b1B w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 f5 Nh3 fxe4 Rg1 c6 Rh1 Qa5 Ng1 Qa3 Bc4 Nh6 Bf1 Qd3 cxd3 Ng8 f4 Kf7 g4 Kg6 b4 h5 b6 e3 f5+ Kh6 b7 e2 f6 c5 f7 c4 b5 h3 g5+ Kg6 b6 c3 Ra3 c2 Bg2 h2 Nh3 h4 Bb2 c1Q Nc3 Rh5 Nd5 Nf6 Ne3 Nc6 b8Q Bg7 b7 Nd4 Ng4 Ne8 Bd5 Qc2 Qa1 Bf6 Qe5 Qc3 b8N Ng7 Na6 Bb7 Nc7 Qb4 Bf3 Rah8 Nf4+ Kh7 Rf1 h1Q Ng6 h3 Rg1 Qh2 Bh1 Bg2 Qa5 Qe5 Qa6 h2 Rf1 Qe6 Rf5 Qc6 Rd5 Bf1 Bc3 Qcb7 Qa2 Qc8 Qb2 Nde6 Be5 Nd4 Bf4 Qe8 Bf3 h1Q Bg2 Qh3 Bh1 Qh4+ Nf2 Qc8 Be3 Qh3 Ng4 Nge6 N6e5 Kg7 g6 Rf5 Bg5 Qh7 Be3 Qhg8 Bg5 Rh4 Bh6+ Kh8 g7+ Kh7 Rb3 Qge8 g8B+ Kh8 Ra3 Ng7 Bh7 Rg5 B7e4 Rf5 Be3 Kh7 Ng6 Rg5 N4e5 Kh6 Ng4+ Kh5 Bf4 Re5 Bh6 Nc6 Kf2 e1Q+ Kf3 Qc1 Kf2 Qcc5+ Ke1 Qf2+ Kd1 Qe2+ Kc1 Nd4
RRn1B1K1/1q2Q1rn/R1p3q1/3p2NP/Q2p1nrk/2PPbq2/1r4B1/Q1N5 w - - 0 2 illegal: No possible last move, all moves rejected
5kBB/rR2R3/RBr1P2n/qQ3Kpb/1pqr1Q2/1Pb1N2N/q1P3p1/2b5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 e5 d5 Nc6 d6 b4 fxe5 Nd4 Be3 Nb5 axb5 cxd6 Bd2 d5 Bc1 d4 Kf2 f5 Kg3 d5 Kf4 a5 e4 g3 h4 g2 e6 a4 e7 a3 h5 a2 h6 d3 h7 d2 b3 d4 b6 d3 e5 Ra7 b7 Nh6 b8Q Qa5 Qe2 d1Q Rh4 d2 Kg5 f4 Nc3 f3 Nd5 f2 Ne3 g6 Qd6 Bg4 Nh3 Bh5 Qb5+ Kf7 Bd3 f1Q e8R Qdf3 Be4 d1R e6+ Kg7 Qh2 Rd4 Qf4 Qc4 Rb8 Bd6 Rb7+ Bc7 Bd3 Rc8 h8B+ Kg8 Kf6 g5 Bh7+ Kf8 Bg8 Qff1 Bd2 Qb1 Be1 Bd6 Bf2 Rc6 Bg1 Ng4+ Kf5 Qb2 Rd1 a1B Re7 Qba3 Rf1 Bb2 Ra1 Be5 Ra2 Bc1 Bf2 Be8 Rhh7 Bh5 Rb7 Qb2 Ra4 Qa2 Rhe7 Rdd6 Bg1 Bc3 Ra3 Rd4 Ra4 Qd8 Ra6 Qda5 Nd5 Rd1 Bb6 Rd4 Ne3 Nh6+
b3B1n1/2Q3R1/1p3r1q/3P1pbN/1B1p2K1/1n3P1P/nk1BqNQR/1b1q2N1 w - - 0 1 illegal: No possible last move, all moves rejected
r2k1Nq1/p6R/Q1p3Pr/rpQ5/QbPb1K2/1b5N/PnB1Rq1R/5B1q w - - 0 2 legal: proof: d4 g5 f4 gxf4 b4 e5 dxe5 c6 b5 Bc5 b6 Bf8 g4 h6 g5 Qe7 g6 Qg5 Ba3 Qd8 Be7 Na6 Bg5 Nc7 bxc7 hxg5 Kd2 b5 e4 f5 h4 d5 e6 d4 e5 g4 e7 g3 h5 f3 h6 d3 Ke3 d2 h7 f2 Na3 g2 Rh2 Nh6 Kf4 Nf7 Nc4 Nd6 Nh3 g1B Nb6 Be6 c8Q Nc4 Qa6 Nb2 Nd7 Bb3 c4 Qb8 Qc2 d1Q Rc1 Qd5 Re1 Qh1 Re2 Qd8 Nc5 Qdd5 Ne6 Kd7 e8R Bb4 Nf8+ Kc7 Re6 Kd8 Re7 Qf7 e6 Qg8 Ke5 f4 Kf5 f3 Kf4 Be1 Rg7 Bb4 e7+ Kc7 e8B+ Kd8 Bg2 f1R Bd7 f2 Bf5 Rd1 Bf1 Rd3 Rc7 Ba4 Rf7 Ra3 Rc7 Bb3 Qd1+ Qgd5 Bc2 Ra5 Rce7 Rg8 h8Q Rg7 Qc1 Qg8 Qh5 Rh7 Qc5 Rh6 Rh7 Rb8 Q1e3 Ra8 Bg2 f1Q+ Qf2 Qd1 Bf1 Qe1 Qg3 Bd4 Qc3 Ba4 Qa3 Bb3 Qa4 Qf2+
k2bb3/1pn4q/1rN1PRNQ/5N1R/1P3p1p/3R1PQ1/1B1nbbB1/K3b1n1 w - - 0 2 legal: proof: d4 a5 h4 d5 a4 g5 c3 gxh4 Qd2 e5 Qc2 Nc6 Qd1 Nb4 dxe5 d4 c4 Na2 Qc2 Ra6 Qb3 Rd6 Qd1 Rd5 cxd5 Bd7 Kd2 Bxa4 Ke1 Bd7 Qb3 Bh3 Qd1 Bc8 Kd2 Kd7 Kc2 f5 e4 h5 b4 c5 Kb2 Kc7 g4 Kb8 d6 a4 d7 c4 g5 c3+ Ka3 h3 f3 d3 g6 c2 Kb2 a3+ Kb3 h2 g7 h4 e6 f4 e7 d2 e8N Rh6 e5 Bc5 Bh3 Nc3 Bg2 a2 Kb2 Ne7 g8Q Qc7 d8R Ka8 Nd6 Ne4 Ne2 Nd5 Qg3 Bf2 Rg1 h1N Nf5 Rb6 Na3 Qh7 Ned4 Nc7 Nc4 Be1 e6 Nhf2 Nc6 Nh3 Rd3 Bd7 N4e5 Be8 Ng6 Bf2 Qe1 d1B Qc3 Be2 Qg7 Nd2 Qh6 Be1 Rb1 Bf2 Ka1 Be1 Bb2 c1B Rd5 Bf2 Rd1 Ng1 Re5 Nf1 Rd4 Bd2 Rd3 Bde1 Rc1 Nd2 Rcc5 Bd4 Red5 Bf6 Rd7 Bg5 Rf7 Bd8 Rf6 Bf2 Nfe7 Be1 Rh5 Bf2 Ba3 Be1 Nf5 Bf2 Kb2 a1B+ Ka2 Bad4 Bb2 Be1 Ka1 Bdf2
q5rn/N1B1pp2/1r2P1r1/2RQr1P1/KPnB1Q1N/R1r1R3/3pb2n/1B1k4 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 a4 cxd4 axb5 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 Kd2 h5 b4 a5 c4 d5 Kc2 Kd7 Kb3 Ke6 e4 Ke5 c5 h4 b6 h3 c6 f3 g7 h2 b7 a4+ Ka3 d3 c7 Kd4 e5 d2 e6 Ke3 Qc2 f2 Qc6 d4 Ra2 d3 Bb2 d1N Bc1+ d2 Bb5 f1R Qa6 Nh6 g8R Rf6 Bd3 Rg6 Ne2 Ng4 Bf5 Nc6 b8B Rh3 Bb2 Nce5 Qd6 Ba6 Ng1 Be2 c8Q Ra6 Qdc6 Rb6 Qd5 Rh8 Ba1 Nb2 Bc7 Kf2 Qa6 Ke1 Nc3 Qa8 Rc8 Rhg8 Nb5 Kd1 Qab7 Rh6 Bh7 Ng6 Qb8 Nh8 Na7 Rhg6 Nf3+ Bf1 Rg1 h1R Rg2 Nh2 Nh4 Be2 Rg3 Rg1 Re3 Rg3 Bd8 Rf3 Rc5 Rf5 Qg3 Re5 Bc7 Nd3 Rac2 Nb2 Qf4 Nc4+ Ka2 a3 Kb3 a2 Bd4 a1R Ra2 Ng4 Ka4 Rc1 Ra1 Nh2 Raa3 Rf6 Be4 Rfg6 Bb1 Rc3
1B1Nn3/2NPR3/2bp4/2rn1Rp1/1p1rQ1QR/2P2rPr/q4krn/1Q1K1B2 w - - 0 1 illegal: No proof kernel
5k2/1QBP1n2/B1p2rp1/Pr1pQN2/1nq1B3/1KQ1NnPn/5R2/b4Rnr w - - 0 1 illegal: No proof kernel
3R4/pNBpNbrB/1prQ1rr1/n4K1n/8/2rRPBQ1/1NqPnP2/1k6 w - - 0 1 illegal: No proof kernel
1b4k1/1nNp2p1/2P1q1P1/R1Rq2r1/PQ1N1BN1/1q1q1b2/2nQp1BK/2B2q2 w - - 0 1 illegal: No proof kernel
R1n1B1k1/2nq1qb1/R1P1p1Qr/1Q1rPpBP/2K3QN/p4N2/N7/r5rr w - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 d4 cxd4 f3 hxg4 Kd2 g5 Ra6 g3 Nc3 g2 Ra5 g4 Ra1 g3 Nb1 Bb7 Ke1 Bd5 Ra6 Be6 Ra1 Bg4 fxg4 Rh5 Nf3 Rh3 Ng1 Rh8 Kd2 f5 Kd3 Kf7 e4 a5 b4 d5 c4 e6 h4 a4 g5 Ra5 b6 Rh7 e5 Qf6 h5 Rg7 b5 Ra7 c5 Nh6 g6+ Kg8 b7 Rd7 b6 Nf7 g7 Na6 b8N Nd6 b7 Qf7 Qg4 Nc8 Nf3 g1R Bg5 g2 Nc6 Nc7 b8Q Rd6 Rh4 Rh1 Nc3 g1R Qb5 Rd8 Na2 a3 Rc1 Ra8 Rc4 Rd6 Ra4 Rb8 Ra6 Ra8 Kc2 d3+ Kc3 d4+ Kc4 d2 Be2 d3 Ncd4 Rb8 Bd1 Rd5 Ba4 d1R Ra8 d2 Ra6 Qf6 Ra8 Kf7 Ra6 Ra1 g8Q+ Ke7 Qg6 d1Q Rh2 Ra8 Nh4 Bg7 Ndf3 Kf8 Rd2 Qf7 Rd4 Rb8 Ra8 Kg8 Rd3 Rd8 Rd6 Rd7 Rda6 Rd5 Qb7 Qd2 Be8 Qd1 Qb5 Qa4+ Qb4 Qad7 c6 Nb6+ Kc3 Kh8 Qb5 Rd8 Kb4 Nc8 Kc4 Qfe7 Qf6 Kh7 Bf7 Rh8 Be8 Qf7 Qh6+ Kg8 Qg6 Rh6
7K/5k1p/3b1q2/1Qpr1nqq/1BBNNPQ1/1q1pR1qQ/1P1P1nR1/6rB w - - 0 1 illegal: No proof kernel forced: bxDB
2N2rq1/R1B5/RqNQ1p2/B1nnp3/b1P2P1b/KpQ3bP/2BbkN2/4b3 w - - 0 1 legal: proof: e4 c5 g4 d5 b4 dxe4 Bd3 h5 Bf1 hxg4 a3 b5 bxc5 a5 a4 b4 Ba3 Ra6 Bb2 Rb6 Bc1 Rb5 axb5 Bd7 Bb2 Bf5 Bc1 Bc8 c4 Kd7 f4 Ke6 d4 Kf5 Kd2 e5 Kc2 g5 Kb3 a4+ Ka2 b3+ Kb2 g3 c6 g2 d5 g4 h3 g3 b6 a3+ Kc3 a2 Kb2 e3 b7 Ke4 c7 e2 d6 e1B d7 Be7 Qd6 Bh4 Nd2+ Ke3 Ka3 f6 Ne2 g1Q Nd4 g2 Nc6 Na6 b8Q Nc5 Bd3 Ne7 Bc2 Qg8 d8B Bd7 c8N Ke2 Bc7 Nd5 Qb4 Qf2 Rf1 g1B Ne4 Bh2 Bd2 B2g3 Qc3 Qd4 Nf2 Be8 N6a7 Ba4 Nc6 Qe3 Qb2 Qd4 Bda5 Qe3 Qc3 Bd2 Rab1 a1B Rb2 Qd4 Ra2 Qe3 Qd4 Bac3 Rfa1 Be1 Qd2+ Kf1 Qd4 Bd2 Qc3 Ke2 Kb2 Bb5 Bb4 Qe6 Ra7 Na6 Bd8 Qb6 Bc7 Nc5 R1a6 Ba4 Ba5 Rf8 Ka3 Qg8
5N2/kr2RpK1/1pQ1BN1r/5r1P/1PBn1pP1/2B1rq2/1qn2RN1/1br2Q2 w - - 0 1 illegal: No proof kernel
3R4/pq3nqB/bn3N1r/P2p1B1n/1KpB2n1/1QR1P2k/nbNQ1P2/1R6 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g3 f5 g4 fxg4 h4 g5 Bh3 g3 Qc2 g4 Bf1 Na6 Qd2 Rb8 Qd1 Rb6 Bf4 Rg6 Bc1 Rg5 hxg5 Kf7 Bh3 Ke7 Bf1 Ke8 Kd2 Kf7 Kc3 Ke6 b4 Kf5 a4 c5 g6 h5 a5 d5 g7 h4 b5 g2 b6 g3 b7 Kg4 b8R h3 e6 h2 e7 Nf6 g8B Qb6 e8Q Bg7 Qe7 Nc7 Qf7 Ba6 Rf8 Qb7 Bg5 Na8 Ra3 Rh6 Nd2 Nb6 Ngf3 g1N e3 g2 Rd8 Nh3 Ne4 g1Q Bh7 Qg2 Bh4 Ng5 Bd3 Kh3 Nd4 Ng4 Nf6 Qg1 Qg8 Nf7 Bdf5 Qg2 Rg1 h1N Qd2 Ng3 Rb1 Nh5 Nc2 Bh8 Bg3 Bg7 Be5 Qg3 Kb2 c3+ Kb3 c4+ Kb4 Qg1 Bd4 Bh8 Ne1 c2 Rc3 c1N Qe8 Qg3 Qa4 Qe5 Ng8 Qg7 Qb3 Qg6 Nc2 Be5 Nf6 Qg7 Bc5 Bd4 Rd3 Ba1 Bd4 Bb2 Rc3 Na2+
2Q2qn1/1K2q2N/B2k1qR1/q2pNR2/1pbn1b2/1P1qr2R/PQ1P3p/2Q3B1 w - - 0 2 legal: proof: e4 a5 h4 f5 exf5 b5 b3 g5 Be2 gxh4 Bc4 a4 Be2 axb3 Bf1 b2 Qf3 Ra3 Qd1 Rb3 cxb3 Bb7 Qc2 Ba6 Qd1 Bc8 Ke2 h5 Kd3 e5 Ke4 Ke7 Kd5 c5 f4 h3 g4 c4 g5 h2 g6 h4 g7 b4 Na3 b1Q Nf3 h3 Bb2 c3 Ba6 c2 Qc1 e4 Nc4 e3 Bd4 e2 Ng5 e1Q Bg1 Nc6 Nh7 Nd4 Ne5 Qf1 Kc5 d5 Qb2 Qd7 Kb6 c1Q f6+ Kd6 f5 Qbd3 f7 Qe7 f6 Bg4 Rb1 Be2 Ra1 Qf4 Rb1 Qc8 Rf1 Qa8 Rf3 Qh4 Rf5 Bf1 Nd7 Qad8+ Kb7 Qa5 Qc1 Qde4 Qb2 Bc4 Qc1 Qd3 Qb2 Nh6 g8R Qg5 Rg7 Ng8 Rg6 Bh6 f8Q Qh4 f7+ Qf6 Qc8 Bf4 Ng5 Rh4 f8Q Rg4 Nh7 Rg3 Qfe8 Qf8 Qe1 Re3 Qec1 Qe7 Bf2 Qf8 Rd1 h1Q Ne5 Qg2 Bg1 Qge2 Rf1 h2 Rf3 Qe4 Rh3 Q2d3 Ng4 Qee8 Ne5 Qee7+
1r2n3/1p1N1BR1/1B4Q1/q2QP1b1/1P2P2p/kp2QB2/b2b2K1/NbbR1q1r w - - 0 1 illegal: No proof kernel
N2rQ1q1/bkp3p1/1qrrN3/B1PB1R2/1P1pNn2/3r2P1/4r1Q1/KBnR4 w - - 0 2 legal: proof: d4 h5 a4 e5 e4 b5 axb5 h4 g3 Ba6 Qf3 exd4 Qg2 h3 f3 Bb7 e5 Be4 fxe4 hxg2 Kd2 a5 h4 d5 c4 Kd7 Kc2 Kc8 h5 f5 e6 a4 e5 f4 b6 f3 e7 f2 e8Q a3 e6 a2 h6 Bb4 e7 Ba5 h7 Nf6 c5 Nbd7 Bc4 f1Q Bd2 Ne5 Ne2 g1R Nbc3 Ra6 Nf4 Rg2 Rh5 Re2 Ne4 Kb7 Ne6 Nd3 Rf5 Nh5 Rd1 a1R b3 Ra4 Kb1 Nc1 Bb4 Rf8 h8Q Nf4 Qh3 d3 Qg2 d4 Be1 Rb4 Ka1 d2 Bd3 Qh1 Bc2 Qh6 Bb1 Kb8 b7 Rd6 Qa4 Rg8 e8B Bb6 Bf7 Ba7 Qe8 Rf8 Bg8 Rbb6 Bf7 Rbc6 Bg8 Bb6 Bf7 Ka7 b8N Kb7 Nd7 Ba7 Nb6 Qb8 Na8 Qf6 Qd7 Rd8 Qe8 Qg6 Nf8 Qh7 Bd5 Qg8 Ne6 Ncd3 Rc1 d1R Ba5 Rdd2 Rd1 Nc1 b4 Rd3 Rh1 Kc8 Rg1 Qb6 Rd1 Kb7
3qnBb1/2P1N3/p1qq2p1/1k1BK1P1/1qqr4/3Q2R1/P2pNRb1/r2BQ2Q w - - 1 2 legal: proof: f4 b5 h4 e5 c4 exf4 d4 c5 h5 g6 h6 Bg7 hxg7 Na6 Qa4 bxc4 Qc2 c3 Qd2 c4 Qd1 Nc5 dxc5 Qa5 Qd5 Qb6 Qd1 Qd8 Kf2 f5 Kf3 d5 g4 Kd7 b4 Kc6 e4 h5 g5 a6 e5 d4 e6 c2 e7 d3 Bb2 c1Q Be2 c3 Rh3 h4 Qe1 c2 Qf1 d2 Bd1 Be6 Qd3 Nf6 g8B Ne8 Bf6 Qa3 Nc3 c1Q Bg7 Qb1 Rh2 h3 Rf2 h2 Bf8 Rc8 Bf7 Rh4 Nd5 Qbb3 Ne2 h1Q+ Rg2 Rg4 Rb1 Qc4 Rb3 Kb5 c6 Rb8 c7 Qd6 Kf2 f3 Ke3 f2 Bg8 f1B Rf2 Rd4 Bf7 Ka4 b5 Qab4 b6 Kb5 b7 Qh8 Kf3 f4 Bg8 Bf7 Kg4 Bg2 Rc3 Ng7 e8Q+ Qc6 Qe5 Ne8 Ne7+ Bfd5 Qee4 f3 Kf4 Be6 Bf7 Qg8 Ke5 Bd5 Rf1 f2 Qh4 Be6 Qh1 Bed5 Qc2 Qc4c5 Rg3 Qcc4 Qd3 Be6 Rg1 f1Q Rf3 Qf2 Rf1 Qh4 Rg3 Qh2 Rf2 Nf6 Bh6 Qd8 Bf8 Ne8 Bg8 Bf5 Bd5 Be6 Qe1 Bg8 Qh1 Ra8 Qe1 Ra7 b8Q+ Rb7 Qa8 Bh1 Qc8 Bg2 Qh3 Qa4 Qh5 Ka5 Qh3 Rb1 Qh6 Nd6 Kf6 Qab4 Rh3 Kb5 Re3 Qg3 Qhh1 Ra1 Ref3 Qh3 Re3 Qhd7 Rg3 Ne8+ Ke5 Qdd6#
qkq4N/6Kp/1Bbb3P/1PRB4/pnr1qR1Q/2N2P2/1Q1rQp1R/2r2q2 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Na3 exf4 Kd2 f3 Nb1 f2 e3 f5 Ra5 f4 Ra4 f3 Ra5 Nc6 Ra1 Ne5 Bd3 f1R Qe2 f2 Qd1 Nf3+ gxf3 Kf7 Ra5 Ke7 Ra1 Ke8 c4 g5 b4 d5 h4 Kd7 e4 Kc7 b6+ Kb7 h5 a5 e5 g4 e6 g3 e7 g2 e8Q Be6 h6 Qc7 c5 Qc8 c6+ Kb8 b7 Bd6 c7+ Ka7 Qea4 Ne7 Bc4 d3 Ke3 d2 Kd4 Bd7 Qe2 Bc6 Nc3 Rd8 Nh3 g1Q Rh2 Qgg4+ Nf4 d1Q+ Bd2 Qb3 Be3 Rc1 b5 Qge6 Ng6 Qa2 Nh8 Rd7 Qa3 a4 b8R Qc2 Rb1 Qeg8 Rb4 Qf5 Qab2 Qf4+ Kd3+ d4 Bd5 Qe4+ Kc4 Rd8 Rb6 d3+ Bd4 Qh3 c8Q d2 Qg4 d1Q Qh4 Qc8 Ra6+ Kb8 Ra7 Qeg6 Bb6 Qf1 Kd4 Rd7 Rc7 Q6e6 Be4 Nd5 Rc4 Nb4 Bd5 Qgf8 Rc5 Rd8 Rf7 Ra7 Rf4 Rc7 Qc4 Qee1 Qce2 Rdd7 Ke4 Qg8 Kf5 Qgd8 Qee7 Qe4+ Kf6 Qc2 Qg5 Be5+ Kf7 Ka8 Rfh4 Qb7 Qd2 Kb8 Bc4 Be4 Rf4 Qa8 Qe2 Rd2 Rc6 Bd6 Kg7 Qc8 Bf7 Bd5 Qh4 Qe4 Rc4 Rc5 Be6 Bc6 Bg8 Rcd5 Rc5 R5d4 Bd5 Rc4
1B2n2b/1q1qN3/P5br/R1Rpn1Kp/P2nQN1P/2p2Q1q/k1BRB3/4n3 w - - 0 1 legal: proof: d4 a5 g4 e5 b4 exd4 c3 f5 c4 b5 bxa5 fxg4 Qb3 b4 Qd1 Ra6 Bb2 Rb6 Bc1 Rb5 cxb5 Bc5 Qb3 Bd6 Qd1 Bf8 Kd2 Ke7 a4 Ke6 h4 Kd5 f4 Kc4 e4+ d3 Ke3 h5 a6 d5 f5 g5 e5 c5 e6 b3 f6 b2 f7 g3 b6 g4 Kf4 g2 b7 g3 e7 Nc6 b8R Bg7 f8Q Rh6 e8B Bh8 Qf7 Nf6 Ra2 Bf5 Be2 Nd4 Qe7 Qd7 Rb5 Bg6 Nf3 g1N Ra5 g2 Nc3 b1Q Qe4 Qbb7 Ne5+ Kb4 Qf1 Kb3 Nc6 c4 Kg5 d2 Qff3 d1Q Ne7 Qd3 Bf4 Qe3 Bf7 Ne8 Rd2 Qd3 Bb8 Ka3 Qf1 Q3h3 Qff3 Kb3 Bg8 Ka3 Bh7 Kb3 Nd1+ c3 Nf2 Ka3 Nd3 Kb3 Nf4 Ka3 Rd1 Ka2 Rh2 Nc6 Rd4 Ne5 Bd1 Ne2 Rc4 Nd4 Be2 g1N Rcc5 Nc2 Bb5 Ne2 Rf2 Ned4 Rd2 Ka3 Be2 Ne1 Qb1 Bf7 Bc2 Bg6 Qb4+ Ka2 Qc4+ Nb3 Qce4 Nd4
4bk2/1rBB3b/1p1qPP1K/4Q1p1/BR1p1RP1/1n4NN/2Q2R2/bqb1qn2 w - - 0 1 illegal: No proof kernel
3Rn3/b6Q/2P2R1r/1bbK2Q1/p1r2Qp1/1q1NBBP1/1Pp1N3/q1rbNk2 w - - 0 1 illegal: No proof kernel
Rq3qkr/3pb2n/rR2Ppb1/pP3P2/1B1Q2NK/3B3r/BqNQrN2/8 w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 cxb5 Ne7 b6 Ng8 b5 Ke7 a5 Nc6 a6 Na5 Nd2 Ke8 Nb1 Nb7 axb7 Bg7 Ba3 Bh6 Bc1 Bf8 b8Q h5 g4 c5 f4 h3 Kf2 h2 Kg3 h4+ Kh3 c4 e4 d3 e5 d2 b7 c3 g5 c2 g6 Be7 g7 Nf6 g8B Kf8 Bd3 Nh7 Ba3 c1Q Qd6 Qb2 b8N Bb7 Qd4 Be4 Bb4 Bg6 Nc6 Qb8 f5 f6 Ba2 a6 e6 Kg8 Ne5 a5 Ng4 Qf8 Na3 Ra6 Nc2 Qb8 Qe2 d1R Rc1 Re1 Qd2 Re5 Nce3 Re4 Rc6 Qf8 Nc2 Re2 Rb6 Qb8 Nf3 Qf8 Rc1 h1Q+ Nfh2 Qha8 Nf2 Qab8 Kg4 h3 Kh4 Qfc8 Nhg4 h2 Na1 Qd8 Rc8 Qf8 Nc2 h1R+ Nh3 Rg1 Nhf2 Rg3 Rd8 Qf4 Ra8 Q4b8 Ne5 Rf3 Neg4 Rh3+
K1b2q1n/4b3/2Bk3p/n1N1p1Bn/1q1pP3/1Q1rRPnP/1B1Q2R1/bR1N4 w - - 1 2 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 b4 a5 g3 a4 g4 Ra5 bxa5 fxg4 Kd2 g5 Kd3 d5 e4 Kd7 c4 h6 c5 g3 b6 a3 a6 a2 c6+ Kd6 c7 g4 a7 g2 a8R g3 h3 e6 f3 Ne7 b7 Ng8 Rh2 Be7 Qd2 Nc6 b8B Nf6 Ne2 g1Q Nbc3 g2 Bb2 Na5 Na4 Nh5 Nc5 Qf8 Rb1 a1B Nc3 e5 Ba7 Qh1 Nd1 g1N Rg2 Ne2 Rb8 Rh7 Rb3 Neg3 Be2 Qe1 Ra3 Bf5 c8Q Rh8 Qa8 Bc8 Qb7 Rh7 Qb3 Rg7 Kc2 d3+ Kc3 Rg6 Kb4 Rf6 Qdc3 d2 Kb5 Re6 Kb6 Rg6 Ne3 d1N Bb5 Nf2 Nd1 Nd3 Qd2 Ndf4 Bc6 Re6 Qbd3 Ng6 Qb3 Nb7 Ka6 Nh8 Bb6 d4 Ka7 Na5 Bd8 Rg6 Ka8 Rg8 Qde3 Qb4 Qd2 Ne2 Rf2 Rg1 Rh2 Neg3 Rg2 Bh4 Bg5 Rf1 Bf4 Be7 Bg5 Rg1 Qc4 Re1 Re3 Rf1 Qb3 Rf2 Qdd3 Rd2 Qdc3 Rd3 Qe1 Bd8 Qd2 Be7
2r1r1R1/1KN3pB/n4R2/1Q1bpQ1p/2B1P1Pb/r1q5/Q2PR3/N1k2qqr w - - 1 2 illegal: No proof kernel
1rrqR3/1Q1B1Q2/pP2K1N1/4bB2/n1k1pbBR/q1p1P2q/2P2Q2/N4bq1 w - - 0 2 legal: proof: f4 b5 g4 g5 a4 c5 axb5 c4 d4 h6 Be3 Na6 Bf2 Nc5 dxc5 Qc7 Bh4 gxf4 g5 Qb6 g6 Qd8 Bg5 hxg5 Kf2 e5 Kf3 Ke7 Ke4 Ke6 b4 f3 h4 a6 b6 f2 b7 g4 b8Q g3 g7 c3 c6 g2 h5 Ne7 g8B Bh6 c7 Nd5 b5 Bf4 h6 Nb6 h7 Na4 Qb7 Rb8 Nf3 g1B b6 Bgh2 Qe1 d6 Bg2 f1Q Nh4 Qg1 Qf2 Qe7 Nd2 d5+ Kf3 d4 Ke4 d3 Re1 Bhg3 Bf3 Qa3 Nb3 d2 Ng6 d1Q Rh4 Qd8 Na1 Kd6 Bh5 Bh3 c8B Bf1 Bd7 f6 Bge6 f5+ Kf3 Rg8 h8Q Re8 Qh7 Rh8 e3 Kc5 Rd1 Re8 Rd5+ Kc4 Bg4 Bg5 Nf4 Bh3 Bh5 Qf6 Qd2 Rec8 Ng6+ f4 Ke4 f3 Bf5 f2 Qf7 f1Q Bhg4 Qd8 Qg2 Bf6 Qf2 Bf4 Rd6+ Kc5 Re6 Kc4 Qg3 Qfg2+ Qf3 Qg3 Qf2 Bf1 Re8+ Kc5 Bd1 Qh3 Bdg4 Kb4 Kd5 e4 Ke6 B6e5 Rhh8 Kc5 Rh4 Kc4
1n4R1/1B2qrb1/Nn3RQp/Bk1N2K1/R1pP2pr/1BPP4/2Qn3n/5q1r w - - 0 1 legal: proof: h4 d5 g4 g5 b4 a5 h5 axb4 e3 d4 exd4 f6 Bh3 Bf5 Bf1 Bg6 hxg6 f5 Qe2 fxg4 Qf3 Qd6 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 a4 e5 c3 b5 g7 b3 a5 b4 a6 b2 a7 g3 Bc4 b3 Nh3 g2 Nf4 g1N Ra4 e4 Nd5 Ne7 g8R Nc8 Na3 b1N Nb5 b2 Bb3 Bg7 Qc2 Nf3 Rf1 Nh2 f4 g4 d3 Qe7 f5 Nb6 Kf4 e3 f6 e2 f7 e1Q f8Q Nd2 Rf3 b1R Qf7 Qf1 Ba3 Re1 Bd6 Re3 Rf2 Rh3 Bb4 Rh6 Ba5 Rh4 Rc8 Rd8 Qg6+ Rd6 Rg8 Rf6+ Qf5 Rf7 Qf6+ Kb7 Kg5 c5 Nbc7 c4 Rf4 Qd7 Qf5 Kc6 Na6 Kb5 Qg6 Qe7+ Rf6 N8d7 Ra3 Rb8 a8B Rb7 Nc5 Nb8 Ra1 Ra7 Bb7 Ra8 Bb4 Ra2 Ba5 Rb2 Ra3 Rb1 Na6 Qg2 Ra4 Rh1 Nf4 Qf1 Nd5 h6+
3nnk1B/2QP1pN1/qR1b2b1/b3P1K1/2pQ2N1/1rpq1BR1/1RP2n2/4nB2 w - - 0 1 illegal: No proof kernel
1q4BR/pP1r4/P3Q1N1/k2r4/1qQP1pR1/nrNp4/2nq1QR1/Kb2q1B1 w - - 0 1 illegal: No proof kernel
NB3NQ1/1Kq1p1P1/3rNbBq/p1BpRR2/Pb1bQ1b1/5P2/2n3qk/5n2 w - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 d4 gxh4 c4 a5 Kd2 b5 Ke2 Ra6 Ke1 Rc6 Nh3 bxc4 Ng1 c3 Qe2 c4 Qd1 Rc5 dxc5 Qb6 Qf3 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 h5 Kd5 c2 g4 d6 a4 c3 b4 h3 c6 h2 c7 h4 b5 h3 b6 Rh6 f3 Na6 Kc6 Ke5 b7 d5+ f6 Rg6 b8B Nh6 g5 Bg7 Be3 c1B Qe1 c2 Nd2 Bb2 Ne2 c1B Bc5 Bg4 Kb7 Bd4 f7 Rd6 c8Q Bf6 f8N Ba3 g6 Nf5 g7 Nb4 Nf4+ Ne3 Bd3 Nc2 N4e6 Bb4 Be4 Nf1 Bg6+ Nfe3 Rg1 h1Q Qe2 h2 Rae1 Qg2 Qc4 h1Q Qe2 Bg5 Nc4+ Kf6 Qd3 Qh6 Nb6 Ke5 Na8 Bh4 Rh1 Bf6 Rh5+ Bf5 Nec7 Kf4 Nce6+ Kg3 Qe4 Bg4 Rf5 Kh2 Rh1+ Kg3 Rhh5 Nf1 Rhg5 Kh2 Re5 Qf2 Rgf5 Qfd2 Qc6 Qg2 Qe8 Bh3 Qf7 Bg4 Qg8 Qc7+
knRN3K/1p2P1nb/4B2P/4nQ1R/pb2r2Q/PN2B3/1p1qb1Nq/3n3R w - - 0 1 legal: proof: d4 c5 b4 cxb4 g4 h5 f4 hxg4 e4 a5 f5 e5 fxe6 Qb6 e5 Kd8 e7+ Kc7 Bd2 Ra6 Bc1 Kc6 d5+ Kc5 Nd2 Qd8 Nb1 Re6 dxe6 Kc6 Ke2 g5 Kd3 f5 Kd4 d5 e8R f4 h4 b3 c4 f3 h5 f2 e7 a4 c5 g3 a3 g2 h6 g4 e6 b2 Ke5 d4 Rh5 g3 Qg4 d3 Nd2 Rh7 Ne2 g1Q Nf4 g2 Nb3 d2 Bc4 f1B Qh4 d1N Be3 Kc7 c6 Qd2 Kf5 Rh8 Kg6 Qh2 Kf7 g1N Ng2 Nf6 Rb1 Kd6 c7 Be2 Ra1 Bd7 Rc8 Nf3 e8N+ Kc6 Rc1 Bb4 Kg7 Ne5 Nd6 Re8 Nf7 Re7 Kh8 Ne8 Ra1 Ng7 Nd8+ Kd6 Bd5 Be8 Bc4 Bg6 Rb1 Bh7 Ra1 Rf7 e7 Rf4 Be6 Re4 Rc1 Nc3 Rh1 Nd1 Nd4 Kc5 Nb3+ Kb5 Na1 Ka5 Nb3+ Ka6 Qg5 Nbd7 Rb8 Rd4 Qh4 Ka7 c8Q Bc5 Qc7 Bb4 Rc8 Nb8 Qc2 Ka8 Qf5 Re4
3N1r1q/K2Q1Bp1/5N1b/4QpP1/2P5/1kP1qpbn/b1RbN2R/4qrBB w - - 0 1 illegal: No proof kernel
r2N4/Q1qn1pQ1/2P1rr1b/1qp2R2/Q5rN/nKP3RB/2p1P2B/qB1k4 w - - 0 1 illegal: No proof kernel
q1r1rB2/N4q2/b2QBqpP/n1K1Q1Q1/R1pP3q/2B1pkN1/2Pr3R/2b5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 e4 d5 Ra2 Nc6 Ra5 dxe4 Ra3 e3 Ra2 e4 Ra1 Ne5 fxe5 Rh3 Ra2 Rh5 Ra1 Rh8 Ke2 Kd7 b4 Ke6 d4 Kf5 h4 Kf4 h5 f5 b6 c5 h6 a5 e6 a4 e7 c4 e8Q a3 b7 g6 b5 a2 b6 g3 Bh3 g2 Bd2 Qf6 Qe6 Ba3 Rh2 Bc1 Bc3 Ne7 Qd2 Re8 Na3 Nc6 Nb5 Na5 Na7 Kg3 b8Q+ f4 Qf5 Ba6 Qd6 Rac8 b7 Qf7 Ke1 e2 b8B Qf6 Qfe5 Qf7 Rb1 a1Q Rb4 Qa4 Bd7 Qc6 Be6 Qa8 Ra4 Qf6 Nh3 Kf3 Nf2 Qf7 Nh1 Qf6 Ng3 g1R+ Nf1 Rg2 Ng3 Rf2 Qc6 Qh8 Bd6 Qh7 Nh1 Qf7 Bb2 Rg2 Bf8 Rf2 Bd5 Kg4 Qcd6 f3 Ba1 Ba3 Qc1 Rg2 Kd2 e3+ Kc3 f2 Qg1 Bc1 Kb4 e1Q+ Bc3 f1Q Be6+ Q1f5 Bd5 Qh4 Be6 Rb8+ Kc5 Kf3 Bb4 Rbd8 Bc3 Rd2 Qg5 Q5f6 Ng3 Rc8+
1kr2Nn1/1p2NrB1/1bb4Q/1P2P1RK/P2pBNq1/3Bq2Q/5r1p/1q1rR3 w - - 0 1 illegal: No proof kernel
kN1r4/p2QPn2/1pPq4/P3bKq1/BnR2b1p/1q4B1/1q1NbQ2/N4R1R w - - 0 1 legal: proof: f4 d5 e4 dxe4 b4 g5 h4 c5 bxc5 gxh4 Kf2 e5 Na3 e3+ Ke2 b6 Ke1 e4 Nb1 Na6 Rh2 Rb8 Rh1 Rb7 Qg4 Re7 Qd1 Re5 fxe5 Qd7 Bc4 Qd5 Bf1 Qd8 Ke2 Kd7 g4 Kc7 c4 Kb8 a4 f5 d4 h5 c6 f4 c5 h3 g5 h4 e6 h2 e7 Bg7 g6 Rh5 a5 Bh3 c7+ Kb7 c8R Nh6 d5 Be5 g7 Qd6 g8Q Nf7 Qg3 Bg4+ Nf3 Nb4 Na3 Rh8 Qf2 Rd8 Nc2 Bh5 Rc6 Ka8 Bd2 Bg4 Be1 Bh5 Bh3 Bg4 Rf1 h1Q Qd3 Bh5 Bd7 Qh2 Rd1 Qg2 Na1 Qg5 Rc7 Bg4 Ba4 Bh5 Rb1 Bg4 Qb5 Bh5 Qd7 Bg4 Kd1 e2+ Kc1 e3 Nd2 f3 Rc6 Na6 Kc2 Bf4 Kd3 Nb4+ Ke4 Be5 Qg3 f2 Rh1 f1Q Qf2 Qh3 Rc1 Qc7 Rc4 Bh5 Rf6 Qe6 d6 Qb8 Rd4 Qb3 Rc4 Qb2 Qf1 Qc7 Bg3 e1Q Qf2 e2 Rf4 Qg1 Rf6 Qg8 Kf5 e1B Ndb3 Qg7 Re6 Re8 Bf4 Q1g3 Qc6+ Kb8 d7 Qd6 d8N Bd2 Qd7 Bec3 Nc6+ Ka8 Nb8 Rd8 Ree1 Be5 c6 Be2 Ref1 Qgc3 Bg3 Bdf4 Nd2 Qcb3 Qg2 Qg8 Qf2 Qg5+
1R4q1/1Krn4/p1nk2b1/1P1p2bp/2qq2N1/NQ1B4/1b3RPP/Bb1N1RQ1 w - - 0 1 legal: proof: e4 c5 f4 g5 a4 gxf4 d4 b5 axb5 a6 e5 d6 Nd2 Ra7 Nb1 Rd7 Kf2 d5 Ke1 Rd6 exd6 cxd4 Kf2 Kd7 Kf3 e5 b4 h5 c4 f5 c5 d3 b6 d2 b5 Bh6 b7 Nf6 Ra2 Nc6 b8R Qg8 Na3 Bg5 Qb3 d1Q+ Ne2 Qd4 Nc3 e4+ Ke2 e3 Nd1 Ke6 Bb2 Nd7 Ba1 Ke5 Kf3 e2 Rc2 e1B Bd3 Ke6 Rf2 Bc3 Rhf1 Bb2 Ke2 Ke5 Kd2 f3+ Kc2 Nd8 c6 f4 c7 Nc6 Kd2 Nf8 d7 Kd6 d8N Bf5 c8Q Nd7 Qb7 Be4 Qa7 Bg6 Re2 f2 Kc2 Ne7 Nc6 f3 Ne5 Nc6 Ng4 Qf4 Rh1 f1B Qg1 Qd4 Rf2 Be2 Qc4 Bf1 Kb3 Be2 Ka4 Bf1 Bf5 Bd3 Be4 Bb1 Bd3 Qb6 Qb3 Qa7 Rc2 f2 Rd2 f1Q Rf2 Nb4 Ka5 Qd4 Bf5 Qfc4 Bd3 Nc5 Kb6 Nd7+ Kb7 Nc6 Qe1 Qh7 Rhf1 Rc8 Rc2 Qf7 Qf2 Qh7 Qg1 Qg8 Rcf2 Rc7+
1bq1q1N1/R1Q1NqrR/B5p1/Bn2n1Q1/kP1P1n2/1p1p2Pq/2B1R3/r5K1 w - - 0 1 illegal: No proof kernel
8/rR1B3n/QnNrppkr/2bn1q2/3qB2K/P1N1P2P/1p1QQ2B/R4n2 w - - 0 1 illegal: No possible last move
1B1R1R1B/qN1pPQ1n/q7/2pnP1bn/B1RP2b1/7p/2br2Qn/k1K3N1 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 e5 fxe5 b5 Kf2 Ra7 Ke1 Rb7 Nh3 axb4 Ng1 b3 Kf2 b4 Ke1 Rb5 cxb5 Bh6 Nh3 Bg7 Ng1 Bf8 a4 Ke7 e4 Ke6 d4 f5 Kd2 c5 g4 h5 b6 f4 g5 f3 b7 b2 a5 h3 a6 b3 a7 h4 a8Q h2 g6 f2 g7 Qf6 Qa2 Nc6 b8B Be7 Bd3 f1N+ Ke2 Bb7 Nd2 b1B Qe1 Bc2 Ba7 Nb4 Qf2 Nd5 Qg2 b2 Bb8 b1Q Nc4 Qb6 Nd6 Qa7 Bb5 Qh6 Bf4 Nf6 g8R Nh7 Re1 Bg5 Rd8 h3 Qc4 Re8 Rc1 Rf8 Bg3 Rf2+ Ke1 Qg6 Ba4 Rd2 Bh4 Ba6 Nb7 Qh6 Qb3 Be2 Bg3 Bg4 Bf4 Ke7 e6 Kf6 e5+ Kf5 e7 Qha6 Bg3 Ke6 Bh4 Kf5 Qa2 Kf4 Qc4 Ke3 Qa2 Kd3 Qb3+ Nc3 Qe6 Nd5 Qf7 Bh6 Bf6 Kc3 Bh8 Kb2 Bb5 Bg5 Ba4 Bg6 Rc4 Bc2 Nf3 Ka1 Rg1 Ng3 Rf1 h1N Ng1 Nh5 Rf5 N1g3 Rf3 Nf1 Rf2 Bb3 Rf3 Rc2 Kd1 Rd2+ Kc1 Bc2 Qe6 Nb4 Rff8 Nd5 Qf7 Nh2
r4B1Q/3kp2N/2RB2bR/p3P1Pq/1pq1n2K/4N1R1/Pbq1r1q1/b3Q2N w - - 1 2 legal: proof: c4 d5 g4 f5 b4 fxg4 c5 c6 b5 Qd6 bxc6 Qe5 Bg2 Qd6 Be4 Qd8 h3 g5 Bd3 g3 Nf3 Nd7 Ng1 Ndf6 Bc4 dxc4 h4 g4 Ba3 Ne4 Bc1 Ng5 hxg5 Qd5 Rh6 Qd6 Rh1 Qd8 e4 b5 f4 a5 d4 h5 c7 b4 c6 c3 f5 h4 f6 h3 d5 g2 Kf2 h2 Kg3 c2 d6 Bh6 d7+ Kf7 Qe1 Ke6 f7 Bb7 c8Q Nf6 f8B Qc7+ Bf4 c1Q Nc3 Bg7 Nh3 g1B Bd6 Bd4 Nd1 Qc4 Nhf2 Bb2 Ne3 Rh7 Rg1 h1Q Rd1 Qh5 Nh1 Qf7 Qb8 Rh2 Rb1 Rg2+ Kh4 Re2 Rg3 Qc8 c7 Bd5 d8N+ Kd7 Rg1 g3 Ne6 g2 Rc1 Qc2 Rd1 Qa6 c8R Qac4 Rc6 Bh8 Rd3 Ba1 Rf1 g1Q Rf2 Bb2 Rh2 Qg2 Ra3 Ng4 Rb3 Nf2 Rd3 Bhd4 e5 Bf3 Rc3 Bh5 Rh3 Qff3 Rg3 Q4d3 Ra6 Qb5 Rcc6 Qbc4 Bg7 Nh3 Rc5 Qgf2 Bc7 Ba1 Qh8 Q2g2 Nf8+ Ke8 Rg6 Nf2 Rcc6 Ne4 Rh6 Bdb2 Nh7+ Kd7 Bd6 Bg6 Bf8 Qh5+
3r1Q1N/2R3pB/q2npnRb/NP2Q1p1/6rP/2N1qRK1/2rrP3/k1n3B1 w - - 0 1 illegal: No extended proof kernel
2qkBQb1/B2p1qb1/2rR4/nbP1B1Np/1K6/PpNP1N2/r7/rQb3R1 w - - 0 1 illegal: No proof kernel
Q2N1q1B/1p1r2R1/5P1r/1k2P2q/r1rQ1b1K/pP1b2R1/4BBp1/q4RnN w - - 0 1 illegal: No possible last move, all moves rejected
2k1Nr2/bp3q2/pBbP1N2/3QP3/Q1n1R2r/rPR2B1K/2rqq2p/2BQ4 w - - 0 1 illegal: No proof kernel
N3BN2/rp1qQBQp/6pb/3PP2k/r1nR2q1/B1Nb1rb1/1K1b3P/1R6 w - - 0 1 legal: proof: f4 a5 g4 f5 b3 e5 b4 axb4 c3 d5 c4 Nc6 fxe5 dxc4 Qc2 f4 Qb3 Nce7 Qd1 Nf5 gxf5 Qg5 Nh3 Qe7 Ng1 Qd8 d4 Kf7 Kd2 c5 Kc2 f3 e4 f2 a4 b3+ Kc3 b2 d5 Ra7 f6 Kg6 a5 Nh6 e6 Bd6 a6 Bg3 e5 Qd7 e7 Ng4 f7 Kh5 e8B g6 Qd4 Ne3 Bh3 f1R f8Q Rf3 Qg7 Rhf8 Ne2 R8f4 Ra4 Re4 Nd2 b1Q Ba3 Qg1 Nb1 Ref4 Kb2 c3+ Kb3 c2 Qb4 c1B Nd4 Re4 Be6 Bd2 Nc3 c4+ Kb2 Qg2 Re1 Qh3 B6f7 Qhg4 Ne6 Rd4 Nb1 Rdf4 Nf8 c3+ Ka2 c2 Kb2 Rc4 Qe7 Rcf4 Nc3 c1B+ Kb1 Re4 Rd4 Nc4 Ka2 Bh6 Ka1 Bcd2 Rb1 Qd6 Ka2 Bf5 Kb3 Qd7 Kc2 Ra8 a7 Ref4+ Kb3 Bd3 Ka2 Rf6 Kb3 Ra6 Ka2 Ra4 Kb3 Rc8 a8N Rc5 Ka2 Rca5 Ka1 Ra7 Ka2 Nd6 Kb2 Nc4+
n1NrB3/Q1pb1N2/1b1PQ3/n6b/k3ppRR/2q1Nb2/1PP1q3/1K1qB1Q1 w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 d5 h4 dxe4 h5 Ra6 g5 Rg6 hxg6 Bg7 Rh2 Bh6 Rh1 Bf8 d4 Kd7 Kd2 h5 d5 e5 g7 f5 g6 e3+ Kc3 h4 b6 f3 b7 f4 Ra3 a4 Bg2 f2 Qh5 f1B Nd2 e2 Nh3 e1Q Qd1 e4 Bf3 Be2 Ng5 h3 Ra1 h2 Bh5 a3 Nf7 a2 Kb3 Nf6 g8N Bc5 g7 Nc6 b8Q Bb6 d6 Nd5 Qa7 Qf6 Ne7 Rd8 g8Q Na5+ Ka3 Bf3 Nf1 Qe2 Bd2 Bg4 Rg1 h1B Be1 Bhf3 Ne3 Qd4 Bg6 Bh5 Rg4 Qe5 Qd4 Qh8 Qc4 Qd4 Rd1 a1Q+ Qa2 Qc1 Qb1 Qb4+ Ka2 Qc3 Qa1 Q1d2 Kb1 Qdd3 Rc1 Qdd1 Qa2 Bc5 Rh4 Nb6 Qg7 Na8 Qe6+ Ke8 Qd4 Bb6 Qc5 Bd7 Qg5 Qg7 Qg1 Qc3 Nc8+ Kf8 Qb3 Ke8 Qd5 Bb5 Qe5+ Kd7 Qe6+ Kc6 Rg4 Kc5 Rh4 Kb4 Rg4 Qd4 Rd1 Ka4 Rd2 Qf1 Rh2 Qe2 Rhh4 Be8 Nh8 Bd7 Be8 Qd5 Nf7 Qdd1+
Q5r1/2Rp4/pn2R3/P1N1rB2/rPN5/1KPbp1bb/1Q1nr1Bk/BQ5r w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 b5 Rh2 bxc4 Rh1 c3 b3 c5 Bd3 c2 Ne2 c4 Ba3 c1R Ng1 c3 Bf1 c2 Rh3 Qa5 Rh1 Qc3 dxc3 Bb7 Nh3 Ba6 Ng1 Bc8 Kd2 Kf7 g4 Kf6 f4 e5 b4 h5 Bb2 e4 a4 h3 Na3 h4 Nc4 h2 Bg2 h3 Nf3 Ba6 Ne1 Bd6 Nd3 Ne7 Nc5 Nd5 Re1 h1R Ra3 h2 Ba1 Rg8 g5+ Kg7 f6+ Kg6 f7 Kf5 g6 Nc6 g7 Nb6 Re2 Kg4 f8Q Kg3 f5 Nd4 f6 Bb8 Qf1 Re1 f7 c1R Qe7 Rb1 f8Q Nf3+ Kc2 Nd2 Qc8 Bf4 Qb7 Rae8 Qa8 Bb8 Qef7 Re5 Ra2 Rb3 Qg1 Ra3 Qff2+ Kg4 Re3 Re2 Qb1 Bd6 Qb2 Bb5 Qg1 a6 Qgb1 Kf4 a5 Bb8 Rh3 Bd6 Rh6 Kg3 Rf6 Bb8 Rc6 e3 Rc7 Rh8 g8B Ra4 Bh7 Rg8 Na3 Bc4 Bd3 Be6 Nc4 Bh3 Bg6 Rg1 B6e4 h1B Bg6 Kh2 Bf5 Ne4+ Kb3 Rc1 Bf1 Bf3 Bg2 Rh1 Qa3 Bh5 Rd2 Bg6 Rd6 Bh7 Qab2 Nd2+ Kc2 Re7 Re6 Ree8 Rb7 Bg3 Rc7 Bg6 Rf6 Re5 Re6 Nf1+ Kb3 Bh7 Bg4 Bd3 Bf5 Nd2+
4B1bb/Np1RQ1P1/3bQ1p1/1n3RBr/pkN3PP/r2b2nr/4Nb2/K4B2 w - - 0 1 illegal: No proof kernel
5KnB/2p1N2r/1Q3n1R/PpnQ1B1P/N1bp1n1k/1P6/n2R2Qb/3q1nB1 w - - 0 1 illegal: No proof kernel
k2N2r1/pbR4r/1QPN4/P4n2/q1Nn2Br/Q2r4/PRp2rp1/KBBr4 w - - 0 1 illegal: No proof kernel
n1bb1N1k/1Bn1B1RN/2Qn1prQ/nnPpb3/5K2/1Rp2PP1/8/1Br1R3 w - - 0 1 illegal: No proof kernel
3B2nN/rr1Rn3/B2R1K1b/p4np1/r1p5/R1Bbn2n/PP1Q1P1k/5Q1N w - - 0 1 illegal: No possible last move
b4bBk/2Rp1n1N/n1P2n1B/1Rp2n2/2NQPnp1/3PQ1n1/8/K1q1B1rN w - - 0 1 illegal: No proof kernel
3b1b2/p3B1nQ/2nQ1nPp/rpPR1R2/2r4N/1P4nK/R1Nr4/1bB2Bk1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 d4 cxd4 a5 f5 exf5 Qb6 axb6 gxh4 f4 Kf7 Kf2 Kf6 g4 e5 Kg2 d5 c4 e4 b7 e3 c5 d3 b3 d2 Ra5 d4 Bb2 h3+ Kh2 e2 Qc2 d1R Ra1 e1B Qe4 Nc6 b8B Ba5 Bc3 Bd8 Bd2 d3 Bc1 d2 Bd6 h6 Kg3 h2 Ra2 Re1 Nf3 d1N Rg1 h1N+ Kh3 Ne3 Na3 Ng3 Nh4 Rh7 Nc2 Re7 Qd3 Re4 Rg2 Rd4 Rd2 Rc4 Qe4 Re2 Rd5 Rb8 Qd3 Rd2 Qe4 Rb6 g5+ Kf7 Be7 Nf6 Qd3 Ra6 Qe4 Ra5 Qd3 Nd7 f6 Ke6 f7 Nf6 Qh7 Nef5 g6 Ng7 Rd4 Rg2 f5+ Ke5 Rd6 Ke4 Rd5 Ng4 f6 Rd2 Nd4 Ke3 Nc2+ Kf2 Rd6 N7h5 Rd5 Bg7 f8Q Bf5 f7 Kg1 Ne1 Bb1 Nc2 Bc7 Qd8 Ngf6 f8R Bb6 Rf7 Bf8 Qd7 Ng7 Qd6 Ng8 Rf4 Nf6 Rff5 Bd8
7n/1kpRR2K/bbnB4/1b4R1/1pb2N1r/1PB4Q/2PnpnQP/2BNq3 w - - 1 2 legal: proof: f4 d5 g4 h5 a4 a5 e4 b5 exd5 g5 Be2 gxf4 g5 b4 Bg4 hxg4 Ke2 Ra7 Kf1 Rb7 Ke1 Rb5 axb5 Bf5 Ra2 Bd7 Ra1 Bc8 Ke2 Kd7 Kd3 f5 b6 e5 g6 e4+ Kd4 f3 Ke5 a4 d4 e3 d6 Kc6 d5+ Kb7 d7 a3 d6 a2 g7 f2 Qd3 f1B Ke6 g3 Kf7 g2 Kg6 f4 Nc3 f3 Nge2 g1N Nd1 f2 Nf4 Qe7 d8B Rh4 d7 Nh3 Rg1 Nh6 g8Q Nc6 Rg5 Nf7 Qc3 Rg4 Kh7 Qe8 Bf6 Bb5 d8B f1B Bde7 Nh8 Bd6 Bfc4 Qb3 Bh6 Bc3 Nf2 Qd5 Bg7 Qg2 Bd4 Rb1 a1N Qa3 Kb8 b7 Bb6 Qb3 Ka7 b8R Bca6 Rd8 Kb7 Rd7 Qe6 Qa3 Nb3 Ra1 Nd2 Qb3 Bf1 Ra5 Bbc4 Rae5 Bcb5 Re4 Qe8 Qe6 Bfc4 Qh6 Qe5 b3 e2 Qhh3 Qd4 B3b2 Qc3 Ree7 Qg3 Qh1 Qg1 Q1g2 Qe1 Bc3 Rh4+
1NQ2n1n/2BpR2b/Q2q2p1/3PPp1r/1R1N1bn1/Q1b2P2/BK1n3k/2N4b w - - 1 2 illegal: No possible last move
5N2/B3pNb1/1Kp2n2/1b6/r5k1/BpPPr1b1/1PqbRrR1/Qr2QR1N w - - 0 2 legal: proof: f4 b5 g4 h5 e4 d5 g5 dxe4 a4 b4 Bh3 Nc6 f5 g6 fxg6 Nd4 Bg4 Nb5 axb5 hxg4 Kf2 Kd7 Ke3 Ke6 h4 Kf5 h5 a5 g7 f6 b6 a4 d3 c6 g6 g3 b7 b3 b8B g2 h6 a3 c3 a2 h7 Be6 Nf3 Qc8 Kd4 g1B+ Be3 Kg4 Kc5 f5 Ba7 f4 Qe1 Bh2 Nh4 f3 Rf1 f2 Kb6 Bg3 Nd2 Nf6 g8Q Bc4 g7 Qf5 Ng6 Bb5 Bc5 e3 Ba3 e2 Ne4 Qf4 Qf7 Qd2 g8R Bg7 Nf8 Qc2 Rd1 a1R Rd2 Rc1 Qc4 Rb1 Qa4 Rd8 Qa5 Rd4 Qa6 Ra4 Qa5 Bb8 Ng3 Bf4 Nh1 Bg3 Qc1 e1B Re2 Bd2 Qe1 Rc4 Bb4 Rd4 Qa1 Re4 Ba3 Ra4 Rg1 f1R Rgg2 Kh4 Rg1 Rf2 Rf1 Bgh6 Rg5 Bg7 Rg6 Rg8 h8N Kh5 Nf7 Kh4 Rh6+ Kg4 Rh2 Rh8 Rg2 Rh5 Qc1 Re5 Qe1 Re3
4QnrN/4r2Q/1NB1RN1p/B3Kpb1/n1r2PPp/R2P2B1/br1n4/4n1k1 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 g5 Ra2 gxh4 Ra1 b5 axb5 d3 c3 d5 Qb3 d2+ Kd1 Qc7 Kc2 d1N Kd2 Qd7 Ke1 Qd8 Be3 d4 Bc1 d3 Kd2 Ne3 Qe6 Nc4+ Kd1 d2 Kc2 Ne3+ Kb3 Nd1 Kc2 Bd7 Qb3 Bc8 Na3 Qd4 Nb1 Qf4 Kd3 Qh6 Ke4 Be6 Kf3 Qg6 Kf4 Bc4 Kf3 Qd6 Kg4 Qg6+ Kh3 Qd3+ Kh2 Be6 Qb4 Bg4 Qb3 Bc8 exd3 Kd7 Kh3 Ba6 Kg4 Kd8 Kf3 Bc8 Ke2 Ke8 Kf3 h6 Ke4 Kd7 g4 Kd6 c4 Kc5 f3 a5 b6 e5 b7 a4 Nc3 a3 Bg2 a2 Nd5 Ra4 Nh3 Be7 Re1 Be6 Nhf4 Nd7 b8Q Bg5 Ng6 Nf8 Q3b7 f6 b3 Nb2 Qh7 d1R Bd2 Rb1 Ba5 Bf7 Kf5 Kd4 b4 e4 b5 e3 c5 e2 b6 Rb4 b7 Na4 c6 Rc1 Nc7 Ke3 Qe8+ Kf2 b8B Rb5+ Ke4 f5+ Kd4 Rb6 Nd5 Nf6 c7 Rg8 c8N Ne4 Nf6 Rb7 Nh8 Re7 Nb6 Nd2 Bh2 Rc2 f4 Rcc7 Rac1 a1R Rc3 Ba2 Ra3 Rb1 Bh1 Rc2 Bc6 Rc4+ Kd5 Rb2 Bg3+ Kg2 Rh1 e1N Kd6+ Nef3 Re1 Ne6 Re3 Nf8 Re6 Kg1 Kd5 Ne1 Kd6 Reg7 Ke5 Re7
BR1r1nbb/1p1N1P2/4bp1k/7N/r3pn1K/2n1P2Q/1P2Q3/nBbBQR2 w - - 0 2 illegal: No proof kernel
1b1Bb1B1/2pN1p1p/QR1r4/3K1P1B/1PR3nQ/3k1n1N/1rb1bn1P/N4n2 w - - 1 2 legal: proof: b4 g5 d4 e5 a4 exd4 f4 b5 axb5 Ne7 c4 Ng8 f5 Qf6 c5 Nc6 Qd2 Nb8 Qf4 Qb6 cxb6 gxf4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 g4 d5+ Kd3 Ke5 e4 a4 b7 f3 g5 f2 g6 a3 b6 a2 g7 Nd7 b8Q Nc5+ Kd2 d3 Ke3 d2 b7 d1B Bg2 Nd3 Nd2 Bd7 Qc8 Be8 b8N Be2 Qa6 Nf6 Nb3 Be7 Bf3 Bc5+ Nd4 Ba7 Nh3 Rg8 Bh5 Rf8 g8B Ng4+ Kd2 f1N+ Kc3 Ndf2 Nc2 d4+ Kb3 d3 Kc4 Nf6 Bg5 N6g4 Re1 a1N Bd8 Nb3 Na1 Nd4 Rg1 Bb6 Rc1 Nf3 Rg2 Ba7 Rg1 Nf6 Rg6 N6g4 Rb6 d2+ Kc5 d1B Rc4 Nd4 Ng5 Nf3 Nd7+ Kf4 e5+ Ke3 e6 Bc2 e7 Kd3 Kd5 Bb8 Nh3 Ra7 Qb5 Ra3 Qa6 Rb3 Nf6 Bb5 e8Q Rb2 Nd7 Bba4 Qe5 Re8 Qf6 Re6 Qh4 Rg6 Nf6 Be8 Nd7 Rd6+
bQr3N1/3Prp1n/pn3BPn/K1pkb1nR/B3b3/P1RB4/3NNb2/3Q4 w - - 0 1 legal: proof: e4 g5 c4 b5 g4 bxc4 h4 d5 hxg5 dxe4 f4 Qd7 g6 Ba6 g7 Qc6 g5 Bc8 f5 Qg6 fxg6 Kd7 Bd3 Kd8 Bf1 Ke8 b4 Kd7 d4 Kc6 Kd2 e5 Kc3 h5 a3 a6 b5+ Kd5 b6 c5 b7 h4 Bd2 e3 Bh3 e4 Qf1 e2 Rh2 e1N Be3 Bd6 Rha2 Be5 Qe2 Bf5 Nd2 Nf3 Rc2 Nh6 g8B Ra7 g7 Nd7 b8Q Nb6 Qd1 Re7 Bh7 Rc8 g8N Bg6 Bf1 h3 Bd3 h2 Ne2 h1B Bf2 e3 Bh4 Be4 Bf5 Nd7 g6 Nb6 Bf6 Ng5 Bd7 Nh7 Ba4 Bhg2 Kb2 c3+ Kb3 Bgf3 Ng3 e2 Rcc1 e1N Ne2 c2 Ra2 Ke6 d5+ Kf5 d6 Ke6 d7 Kd5 Rca1 c1B Rc2 Bg2 Rc3 Nf3 Qf1 Ne1 Nc4 Be3 Nd2 Bf2 Bab5 Ke6 Rac1 Ba8 Ra1 Nc4 Ka4 Nb6+ Ka5 Bgb7 Ba4 Nf3 Qb1 Nfg5 Qb3+ Bd5 Rh1 Nf8 Rh3 Nfh7 Qd1 Be4 Rh5 Kd5
1qk1Bbnb/1q4Qp/bp1BpB2/QP4R1/R1q3P1/6K1/N3q2P/1rN3qN w - - 0 1 legal: proof: d4 g5 f4 gxf4 a4 c5 a5 cxd4 a6 Qc7 Na3 Qb6 Nb1 Qd8 e3 d5 Bc4 b6 Bd2 Nc6 Bd3 Rb8 Bc1 Rb7 axb7 a5 Bf1 d3 e4 d4 Qf3 Nb4 Qd1 Nd5 exd5 Bg7 Ne2 Bh6 Ng1 Bf8 Kf2 Kd7 b8Q f5 b4 e6 c4 a4 d6 d2 c5 d3 c6+ Ke8 c7 Kd7 Qe1 d1Q Qa7 d2 Ne2 a3 Rg1 f3 Kg3 f2 Nbc3 a2 Ba3 Qe7 Nc1 Ba6 Bb5+ Kc8 Be8 f1Q b5 Qc4 Qe5 Qf7 Qg7 Qde2 Bb4 d1Q Bc5 Bb7 Qa5 Ba6 Ba3 Qdd5 Bc5 Qa8 d7+ Kb7 c8N Qb8+ Bd6 f4+ Kh3 f3 d8B f2 Ne7 f1Q Nf5 Qff2 Bf6 Kc8 Ng3 Qfb7 Nh1 Qfd4 Kg3 Qdc5 Rb1 a1B N3a2 Q5d4 Rb4 Bb2 Rd1 Qg1 Ra4 Qee1+ Kh3 Ba3 g4 Q8c7 Bfe7 Kb8 Bf7 Nh6 Qb4 Bb2 Qe5 Bg7 Ra3 Qee2 Rd5 Rf8 Nb3 Qgc5 Qa5 Qg1 Be8 Rf1 Ra4 Rb1 Nbc1 Bf8 Qd4 Ba1 Rg5 Ng8 Qh8 Bag7 Bf6 Kc8 Kh4 Qcb8 Kh3 Nh6 Qg8 Bh8 Qg7 Ng8 Kh4 Qgf1 Kg3 Qg1+
kq1b1Rn1/7p/3QQN1B/1pqn2K1/n3pB1R/1P5P/2bqP2B/q4NbR w - - 1 3 legal: proof: d4 b5 f4 g5 g4 c5 a4 cxd4 a5 a6 f5 Ra7 f6 Rb7 Ra4 Rb6 Bg2 Bg7 Be4 Bf8 Bg6 fxg6 Ra3 Kf7 Ra1 Ke6 Ra3 Kd5 Ra1 Rd6 Na3 Kc6 f7 Rf6 Nb1 Rf5 gxf5 g4 Nd2 g5 Nb1 Nh6 Ra4 Rg8 Ra3 Rg6 Ra1 Rd6 f6 Ng8 Be3 Kb7 Bd2 Rb6 axb6 a5 Bc1 Kc6 Kf2 Kb7 Kg3 e5 c4 d5 b3 a4 c5 d3 c6+ Ka8 h3 d2 c7 d4 Ra2 a3 Rh2 d3 Qc2 d1N Nd2 Be7 f8R Nc6 f7 Nb2 Qc3 Nb4 Qd4 Nd5 Rh1 Na4 Nf1 d2 Nf3 d1Q N3d2 Bf5 Ne4 Qb8 c8Q Bd8 Nf6 Bc2 Bf4 Qd2 Ra1 a2 Qe6 Qb4 Rd1 a1Q Qc5 Qa5 Rd4 Qb4 Qcd6 Qd2 Kg2 g3 Kf3 g2 Kg4 g1B b7+ Ka7 Kh5 g4 Kg5 g3 Rc4 g2 Rb4 Qc8 b8B+ Ka8 Bc7 Qdc3 Bh2 Qb8 Rh4 e4 Qdd7 Qb4 Bcf4 Qd2 Qdd6 Qb1 Re8 Qa1 f8B Bgb6 Bh6 g1Q+ Kh5 Qc5 Kg5 Qc4 Rf8 Bg1 Rg4 Qcc8 Rh4 Qc5
4KBrk/b2bR1p1/N4p2/3R2P1/1p2QrbB/qP2bB1q/b1Q1N2P/2b1Q3 w - - 0 1 illegal: No proof kernel
qKRnR3/2pPn3/BN3n2/q4Q2/pnP3qQ/N3p2r/Pk1qr3/4BRQ1 w - - 0 1 legal: proof: e4 a5 b4 d5 g4 dxe4 g5 g6 Ke2 a4 Ke1 Bh6 Nc3 f6 Nb1 fxg5 Qf3 g4 Qe2 Qd4 Qd1 Qd8 h3 g5 Ne2 g3 Ba3 g4 Nd4 g2 Nf3 g3 Bc1 Bg4 hxg4 Be3 Ng1 Bb6 Ba6 Qd7 Bf1 Ba5 bxa5 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 b5 g5 h5 a6 e5+ Kf5 e3 f4 e2 g6 Kc4 Ke6 b4 f5 h4 f6 b3 g7 b2 d5 e4 a7 h3 d6 h2 f7 Rh3 f8Q Ne7 g8R Nbc6 Na3+ Kc3 Qf5 b1N Re8 e1N Bd2+ Kb2 Ne2 g1Q Nc3 g2 Nd5 Nd3 Be1 Nc3 Nb6 Ndb4 Ba6 Ncd5 c4 Nf6 Qdg4 e3 Qh4 Rb8 a8Q Qf1 Rg1 h1Q Rd1 Qf3 Rf1 g1Q Rd4 Qfg2 Rg4 Q2h2 Rgg8 Qd2 d7 Qg4 Rh8 Ne5 Qg2 N5c6 Qg1 Rb7 Kf7 Qa8 Rc8 Qhd5+ Kf8 Nh5 Ke8 Qa5 Rf8 Nb8 Kd8 Nf6 Nd5 Rb6 Re8 Rd6 Nb6 Rd4 Nc2 Rf4 Na3 Rf2 Qf4 Rg2 Qf5 Re2 Bb7 N8a6 Rb8 Nc5 Ba6 Ng6 Kc8 Ne6 Bb7 Nd8 Ba6 Q8d5 Ra8 Ndc6 Kb7 Nge7 Rac8 Nd8+ Kb8 Qa8+
1B3nR1/1r1b4/b1Q1R1N1/q3Pp1K/Q2QRp1b/pr3p1P/1n3PN1/2Br3k w - - 0 1 illegal: No proof kernel
4R1r1/2R2qb1/1PBp2n1/2pr1P1b/1pNN3p/1Q1PN2B/nr1nQQ2/1k3K2 w - - 0 1 legal: proof: e4 g5 b4 f5 exf5 b5 c4 g4 Ba3 g3 hxg3 a6 g4 bxc4 b5 a5 Bb4 axb4 g5 Bg7 Ne2 Bh6 Ng1 Bf8 f4 Kf7 g4 e5 a4 c5 d3 h5 f6 Kg6 b6 e4 a5 c3 f7 c2 a6 c1N a7 e3 Bh3 e2 Nf3 h4 Nbd2 d6 Nd4 Qe8 Nc4 Bg7 f8Q Nc6 Ra5 Rb8 a8B Rh5 Ra7 Na2 Rc7 Nce7 Bc6 Nf6 Kf2 e1R Qe2 Rb1 Re1 Ne4+ Kf1 Rb2 Qf7+ Kh7 g6+ Kh6 Qf8 Rd5 Qf6 Bh8 g7+ Ng6 g8Q Bg7 Qge6 Qf7 g5+ Kh7 Qff5 Bd7 Qff6 Rg8 f5 Be8 Qfe7 Nf8 g6+ Kh6 Qf2 Nd2+ Ke2 Nf3+ Kf1 Kh5 Qee2 Kh6 Q7e6 Kg5 Qc2 Kf4 Qb3 Bf6 g7 Ng6 Qee2 Be5 Nc2 Bc3 N2e3 Bf6 Na3 Ke5 Nac4+ Kd4 Qbd1 Kc3 Qa4 Rf8 g8N Bg7 Ne7 Rh8 Bd7 Rf8 Nc6 Rg8 Nd4 Rc2 Na5 Kb2 Bc6 Rd2 Nd1+ Kb1 Nc4 Rb2 Qb3 Qf6 Qd2 Bf7 Re8 Qe6 Qde2 Nd2+ Kg1 Ne7 Nde3 Bh5 Kg2 Qf7 Kg1 Ng6 Kg2 Nf3 Kf1 Nd2+
1Br1B1Qn/1R6/Qp2q3/bp1r2Bn/Pk3p1R/2NR1P1r/p3P2N/1b3K1n w - - 0 1 illegal: No proof kernel
1n1kb2R/2p1n2b/1RnPK2N/Br1QP3/prB4Q/P2bp3/2pqN3/1N3Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 e4 d5 c4 bxc4 Bd3 Bg7 Be2 dxe4 Bf1 e3 Rh3 e4 Rh1 Be5 fxe5 Qd4 Qe2 Qd3 Qd1 Qd8 Ke2 h5 g4 a5 d4 f5 b4 a4 b5 h4 a3 h3 d5 c3 b6 c2 g6 f4 d6 h2 g5 Rh7 g7 Bf5 b7 Rh4 g6 Ne7 g8N Ra5 g7 Rb5 Nh6 Bh7 g8Q+ Kd7 Bd2 f3+ Ke1 e2 Kf2 e1N Ke3 f2 Kd4 Rg4 Bc4 f1B Ba5 Nd3 Ne2 Nb4 Qd5 Qf8 Qe1 Qf4 Qh4 Kd8 Ra2 Qc1 Rb2 e3+ Nf4 Rg6 Ne2 N4c6+ Ke4 Qd2 Rb3 Rc5 Rb6 Rb5 Kf4 Rf6+ Kg4 Rf7 Kg5 Rg7+ Kf6 Rg4 Ke6 Rf4 Rg1 h1B Rg8+ Rf8 Rh8 Bf3 Nf4 Bfd3 Ne2 Bh5 Qf2 Na6 Qf1 Be8 b8Q+ Nc8 Qfh1 Rf4 Qf1 Rg4 Qb7 N8e7 Qdh1 Nab8 Qh4 Nb4 Qd5 N4c6 Ba2 Rgb4 Bb3 Bhg6 Bc4 Bh7
BQrBb1R1/1PK4p/2N1R3/1q2P1P1/pp1Q1rr1/1Rb2b2/1Nk1pQn1/2n5 w - - 0 1 illegal: No possible last move
2Nr1k1n/BPbn2p1/1B6/1PNRp2q/1pp1B1b1/Qr1b3P/1N4QR/2K2r2 w - - 0 1 illegal: No proof kernel
R1nr2Q1/P2pk3/p1r2N2/2b3b1/n1p1B2P/2B2PQ1/1qRK1rpN/1b2B1R1 w - - 0 1 illegal: No possible last move
3B4/pKN2BPk/3P4/1bn2r1r/1BR2bNP/2ppn1br/qR1p1Q2/1Q5Q w - - 0 1 illegal: No proof kernel
1bb1N3/pR1p2Qn/q3b1K1/1p2P1Np/2P1r1n1/PRB2BBQ/k2n1Q2/1r6 w - - 0 1 legal: proof: e4 c5 d4 e5 h4 g5 dxe5 gxh4 b4 f5 bxc5 fxe4 Kd2 Kf7 Ke3 Ke6 Kf4 h5 c4 b6 g4 h3 a3 h2 c6 e3 g5 e2 c7 e1N g6 Qh4+ Qg4+ Ke7 Kf5 Rh6 f4 Nf3 g7 Nf6 g8Q Nh7 Nc3 Nc6 Ne4 Nd2 Rb1 Rb8 Nh3 Nd8 Be2 Rg6 Qg7+ Nf7 Bf3 Rb7 Re1 h1B Re3 Qe1 Qg3 Rg4 Reb3 Rh4 Kg6 Ke6 Nd6 Nh6 Ne8 Bd6 Bb2 Ng4 Bc3 Qf2 Qh2 Qc5 R1b2 Qa5 Rb1 Qa6 Qf2 Rb8 Qe3 Bb7 c8Q Bg2 Qcc5 Bc8 Qf2 Rb7 Qce3 Bb8 Bd1 Bd5 Bf3 Ngf6 Qh6 Ng4 f5+ Ke7 f6+ Kd8 f7 Be6 Ng7 Kc7 f8B Ngf6 Qhg5 Re4 Be7 Ng4 Qh6 Kc6 Bh4 Kc7 Bg3 Kc6 Qg2 Kc7 Qe1 Kc6 Ng5 Kc5 Ba5 Kd4 Bc3+ Kd3 Qef2 Kc2 Ne8 Qb5 Rb4 Qa6 R1b3 Kc1 Qg7 Kc2 Bb2 Kb1 Qh3 Ka2 Rb5 Rc7 Bc3 Rc6 Rd5 b5 Rc5 Rd6 Rc7 Rd3 Rb7 Rde3 Qfg2 Re1 Qf2 Rb1
r1nQ2R1/3Bn3/q2pNPN1/2pb1p1B/Rn3b2/N1pP3k/1P2QQ1q/K1r5 w - - 0 1 illegal: No proof kernel
1k2BrN1/3q1r2/np1p2PN/1qB1KR2/2P1Rp1P/2np4/R4Q1q/Bb1Q2b1 w - - 0 1 illegal: No possible last move, all moves rejected
k2n4/1q2b2p/p1Nq4/2nP2Q1/2N2P1K/rQR2p1R/Pp1N1R2/2BBrr1b w - - 0 1 illegal: No proof kernel
6N1/6p1/1pn1nr1R/QPb1q1Q1/b2B4/qpP1N3/1B1Pp1q1/RN1rkBK1 w - - 0 1 illegal: No proof kernel
rqqBNR1K/1R2P3/r1n1P1Q1/2Q2p2/pp1nQ3/5p2/2nN1RP1/k2bb2B w - - 0 1 illegal: Other
8/r1q1pbp1/3nN1BR/k1n1PP2/Bqn1b2B/p4PQ1/rN2K1p1/2RQQ3 w - - 0 1 illegal: No proof kernel forced: wxDB
4qbb1/1knp1pPN/1n4Bn/1q1p4/PN2P3/RrB1Q3/3p1KQr/1QR4N w - - 0 1 illegal: No proof kernel
3Rb1q1/b1pr3q/2rBR2Q/4PNP1/1n4kp/2N1pp1n/1KRQ1B1P/q3B3 w - - 0 1 illegal: No proof kernel
bQ3N2/1Pr5/1n3p2/1RqB1P1Q/1qN1R1nK/p1PR1p1N/4q1pB/r3b2k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 Rh6 f5 Rh7 Qd2 Rh8 Qf4 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 h4 a5 h6 d5 h7 g5 h5 g4 h6 g3+ Kf3 d3 Kg4 d2 b6 d4 b5 g2 b7 f3 b6 d1Q Na3 a4 Rb1 d3 Rb5+ Qd5 Nh3 f6 Kh4 d2 Bc4 Qe2 Rd1 Qc5 Bd5 Nd7 b8Q+ Kd4 e5 Ke3 e6 Bb7 e7 Bc6 Ng5 Kf2 e8R Ra6 Re7 Ba8 b7 Nb6 Re4 Qe1 Nc4 Kg1+ Qg3 a3 Nh3+ Kh1 Bb2 Ra4 Be5 Rb4 Bd6 Rb1 Bf4 Ra1 c3 Bd6 Be5 Qb4 Bf4 Qg1 Qg6 Be5 Bh2 Bb8 Qh5 Bc7 Rde1 d1Q R1e3 Qe2 Rd3 Qgc5 Ne5 Ne7 Nc4 Rc8 h8N Nc6 h7 Ne5 Ng6 Ng4 h8Q Bd6 Qd8 Rc7 Qb8 Bf4 Nf8 Bd2 Bd6 Be1+ Bg3 Nf2 Bh2 Ng4+
7k/rPn4b/p1K2p1n/1N2rqqp/1PQ1B3/1p1RQ2P/b1R5/n3BQNR w - - 0 1 illegal: No proof kernel
4kN1R/Pp1p1N1Q/5P2/1R2bKQb/1PNB2n1/2p1qrp1/2n1q3/QB4nr w - - 0 1 illegal: No proof kernel forced: wxLB
k1q2N1Q/p2BPK2/bB1N1r1p/bpQ4n/R3nqR1/Rr2q3/N1P1P2p/8 w - - 0 1 illegal: No possible last move, all moves rejected
7R/p1p2N1Q/kn4NR/1r2B2R/qp2brPq/3pPr2/1BQ1P3/1BbK1n2 w - - 0 1 illegal: No proof kernel
2k3r1/4nQ2/4np2/1Bp1Np2/RPNP1Rb1/pbK1qPR1/N3Bb2/1Q3rb1 w - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 b5 axb5 g5 hxg5 Qd5 b3 Qd4 Bb2 Qd8 Bf6 exf6 g4 Kd7 d4 c5 Kd2 a5 e4 h5 f3 h4 b6 h3 g6 h2 b7 f5 b4 a4 e5 f6 g7 Qe7 g5 Na6 g6 Nc7 Be2 Ne6 Na3 c3+ Kc2 Qe8 Nc4 Bd6 Qb1 Ne7 g8Q Rh5 Kd3 c2 g7 c1B Kc3 Be3 Qf7 Bf2 g8R Rh8 Rg2 Rg8 b8N+ Kc7 Ra3 Ba6 Rg6 Kc8 Rg3 Bb7 Nd7 Bd5 Nh3 Bc7 Ng5 Bd6 Re1 h1B Ne4 Bg2 Rh1 Bb8 Rh4 Bh3 Rf4 Bg4 Ra1 Rh8 Ra2 Rh1 Ra3 Rf1 Ra1 Ng5 e6 Bg1 Nde5 Bd6 Na3 Bb3 Nac4 Qc6 Kd3 Bc7 Nc3 Qe4+ Kd2 Kb7 Na2 Rg8 Kc3 Kc8 Nd2 Ng6 e7 Ne6 e8B Ne7 B8b5 Bb8 Ndc4 Bf2 Qd3 Bd6 Re1 a3 Qb1 Rh1 Reg1 Bc7 R1g2 Rf1 Rh2 Bg1 Rh8 Kb8 Rg2 Bh5 Rh4 Rd8 Nd3 Bg3 Nde5 B3f2 Rf4 Bg4 Rg3 Rc8 Rd8 Kc7 Rd6 Rg8 Ra6 Kc8 Ra4 Qe3+
4bq2/NBr2p2/R1BQ4/1n3PN1/rp1pP1Q1/5bK1/bRRPp1n1/b5kN w - - 0 1 illegal: No proof kernel
n1NB3Q/q1bbp3/B1r3P1/2bk3b/1Q1pnr1R/pRPK1N2/2P1p2Q/5N2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 e5 g5 hxg5 c4 e6 c3 dxc3 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 b4 h5 g4 a5 b5 d5 b6 d4 f5+ Kd5 b7 e3 f6 h4 g6 a3 g7 a2 f7 h3 g5 h2 g6 a4 Qd2 Bd7 Ba3 Rh4 Qc1 Qb6 Bb4 Qa7 Qd2 Rf4 Ba5 Nf6 g8Q Ne4 Bd8 Bh6 Nf3 Na6 b8Q Nc7 Qb4 Rc8 Kd3 Na8 Qh8 Rc6 f8N Bg7 Qe2 Be5 Nbd2 Bc7 Rb1 a1B Rb3 Bb2 Qf2 Ba3 Be2 Bh3 Nf1 Bg4 Nd7 Bh5 Qa5+ Bc5 Qb4 a3 Nb6+ Kd6 Nc8+ Kd5 Rg1 h1B Rg4 Bg2 Rh4 Bh3 Qh2 Bd7 Qb7 Ke6 Kc4 Ng3 Bd3 e2 Qb4 Rd6 Be4 Rb6 Bb7 Ne4 Kd3 Rc6 Ba6 Kd5
k2B4/1nnQpq1b/KPQ2P2/4R1Pp/4RB2/2b1Q1Np/1rbpN1B1/b6r w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kd3 a5 Kc4 d6 g4 Kd7 f4 Kc7 b4 Kb7 f6 d3 b6 d5+ Kb5 h3 c4 d4 f5 d2 f7 d3 f6 a4 c5 a3 Bg2+ Qd5 Nc3 a2 Nce2 Qe4 Ng3 Qd5 N1e2 Be6 Re1 Bh6 f8Q Bf5 Rb1 Bg5 Qh6 a1B Rb3 Bh4 Qe3 Na6 g5 Bh7 Ra3 Nh6 Ra5 Kb8 b7 Qf7 c6 Nc7+ Kb6 Nf5 Re5 Rd8 b5 Ra2 Qc2 d1B Qa4 Ne6 Ka6 Bc2 Bd2 Rb2 Ba5 Rd4 Bd8 Rf4 Qad4 Rf1 Qd7 Rh1 Rf1 d2 Rf4 Nd6 Rfe4 Nd4 Ka5 Ka7 b8B+ Ka8 b6 N4b5 c7 Nb7+ Ka6 Qe8 c8Q Qf7 Nf1 Bg3 Qcc6 Bh2 Nfg3 Bg1 Qf4 Bd4 Qe3 Bc3 Re6 Ba5 Bf4 Bc3 R6e5 Nc7+
1B2r1B1/nR1rpR2/pq3n2/1n2bpQ1/1PK1P2p/1N4bk/Q3R2P/2nBN3 w - - 0 1 legal: proof: d4 g5 a4 c5 f3 b5 axb5 cxd4 Bd2 g4 Bf4 Bb7 Bc1 Bc8 Nd2 g3 Ra2 Bb7 Nb1 Be4 Ra1 Bf5 Na3 Bg4 fxg4 Qc7 Nb1 Qc6 Bg5 Qe4 Bc1 Qxg2 Kd2 h5 Kd3 d5 c4 Kd7 b4 Ke6 c5 a6 b6 h4 g5 Kf5 e3 Nc6 g6 Nf6 b7 Re8 b8Q Qf2 g7 g2 g8B Na7 c6 Bg7 Qc2 Kg4 Nf3 g1B Be2 Kh3 c7 Rd8 e4 Rd7 Qa2 Qe3+ Kc2 d3+ Kc3 d4+ Kc4 d2 c8R d1N Qf4 d3 Qg5 d2 Ne1 Nf2 Rc7 d1N Nd2 Nc3 Nb3 Ncb5 Bd1 Nd3 Rb7 Qb6 Bf4 Bf2 Bb8 Nc1 Rf1 Bg3 Rf2 Rd6 Re2 Rd7 Bh7 Re8 Bg8 Ng4 Rb1 B7e5 Rbb2 Nf6 Rbd2 Nh7 Rd6 f5 Rf6 Nf8 Rf7 Nh7 Qa5 Nf6 Qa4 Bb2 Qa2 Bbe5
N2kb3/4nbp1/Bbrq1nP1/pPpQB3/3R4/pQ1Kq1n1/2PRB3/5RN1 w - - 0 2 legal: proof: g4 a5 d4 f5 a4 e5 dxe5 b5 g5 Ra6 h3 Rc6 Ra3 Rc4 Ra1 Rg4 hxg4 fxg4 Rh6 bxa4 Rh2 Nh6 Rh1 Ng8 Kd2 c5 b4 d5 f4 h5 e4 g3 g6 h4 e6 g2 e5 h3 e7 h2 f5 d4 f6 a3 f7+ Kd7 e8R d3 e6+ Kc7 e7 Qd6 Bb2 Bh3 Nc3 Bd7 Rd8 Nf6 e8B Be7 f8Q Nc6 Be2 Rg8 Ke3 d2 Na4 Rh8 Qb1 d1B Nb6 Rg8 Ba6 Be2 Be5 Bc4 Qb3 Bf7 Rd1 Rh8 Rd2 Rg8 Nf3 g1Q+ Ke2 Qg3 Rf1 h1N Ng1 Qh3 Rd4 Ng3+ Kd3 Rh8 Qg8 Qe6 Ra8 Bd8 Rb8 Ne7 Na8+ Kc6 Rc8+ Bc7 Rd8 Bb6 Bc4 Kb7 b5 Bc6 Bd7 Qh3 Bg4 Bce8 Rd7+ Kc8 Bce6 Qc7 Be2 Qh6 R7d6+ Qd7 Bd5 Kd8 Bb7 Qc1 R6d5 Qd6 Ba6 Rh4 Kc3 Rf4 Rd2 Re4 Kd3 Qe1 Rd4 Qf2 Bf4 Re6 Be5 Qe3+ Kc4 Qd7 Qh7 Nfd5 Qh1 Nf6 Qg2 Rc6+ Qd5 Qf2 Kc3 Qd6 Kd3 Qe3+
2qN4/1qnR1pR1/1q6/4NpQR/Q3PP1Q/B2Pp3/1K1kpn1r/2rr1b1B w - - 0 1 illegal: No proof kernel
N6B/Q1p2RB1/1q2prqP/4Pkp1/2BQ1Pn1/Kb4n1/3nR2p/3qQN1r w - - 0 1 illegal: No proof kernel
1r1Q3N/1n1pq1R1/4Q1Pq/R3B1rB/b1K5/Pqp1pBN1/2N1Pbp1/1k5r w - - 0 1 illegal: No proof kernel
1Q1b1n1q/qBNPq1Qp/3pBN1N/3P2P1/2kn1R2/pb3bK1/R4B1p/5r2 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 b5 a4 g5 axb5 gxh4 c5 a5 Ra2 Ra6 Ra3 Re6 Ra1 d6 c6 Re7 Rh3 Rd7 cxd7+ Ke7 Rh2 Bh6 Rh1 Bf8 Kf2 Ke6 b4 Kd5 e4+ Kd4 g4 f5 b6 c5 g5 a4 e5 h3 b5 c4 b7 c3 e6 f3 b6 a3 e7 h2 e8B f4 Bf7 c2 Ra2 Qe7 Nh3 Nc6 b8Q Bb7 Ba6 Kc5 d3 Nd4 Be3 c1Q Nc3 Qa1 Rf1 Bg7 Bfc4 Bf6 Be6 Bd5 Bc8 Bb3 Nd5 Qc3 b7 Qa5 Rg1 Qa7 Rg4 Kb5 Qa1 Kc5 Kf1 f2 Kg2 f3+ Kg3 f1Q Rf4 f2 Qb2 Qe1 Qa1 f1B+ Nf2 Qb1 Ng4 Bg2 Nh6 Bf3 Bf2 Qe1 Qb2 Qd8 Qa1 Ne7 Qb2 Ng6 Qa1 Be7 Nf6 Qe3 Qb2 Rf8 Qa1 Nc6 d4+ Kb4 d5+ Nd4 Qc7 Rf7 b8N Qh8 Bb7 Nf8 Na6+ Kb5 Qb8 Bd8 Nc7+ Kc4 Bg4 Qe8 Be6 Qe7 Ne4 Nc6 Qg7 Rf5 Nf6+ Nd4 Ra1 Re5 Ra2 Re1 Nce8 Ra1 Nc7 Rf1
3q1B1k/1PR1N3/Qb1p1K2/Np2b3/1nq2p1n/B1pb2Q1/QnPPR1N1/5r2 w - - 1 2 illegal: No possible last move, all moves rejected
Qr4nQ/N1NBp1B1/1b2B2P/1p2q2b/1P1kP2n/1Qp1Rq2/2p2q2/KR4n1 w - - 1 2 legal: proof: f4 g5 fxg5 h5 g4 d5 c4 dxc4 a4 hxg4 a5 b5 Bh3 a6 Bg2 Ra7 Bh3 Rb7 Bf1 Rb6 axb6 a5 h4 Kd7 e4 Kd6 d4 c5 Kd2 f5 Kc2 f4 b4 g3 Kb2 a4 b7 f3 d5 Ke5 d6 g2 h5 f2 g6 Bh3 h6 Nc6 b8Q Qb6 g7 Bc8 Ra3 c3+ Ka1 c2 Ne2 g1N Re3 c4 Nd4 Bg4 Nc3 Bh5 Bh3 f1Q Bb2 Qf3 Nd5 a3 Qb1 a2 Qa8 Qc5 d7 Qa7 d8Q Qc5 Nf5+ Nd4 Nd6 Qb6 Nc8 Qbf6 Bc1 Nf5 Qb3 Nh4 Na7 Kd4 Bd7 Qf2 Ba3 Q6f3 Qdc8 Nf6 g8B Bg7 Bf7 Ng8 Bfe6 Be5 Bc1 Bc7 Qe8 Bb6 Nc7 Nf6 Qf8 Rg8 Qg7 Rb8 Qh7 Ng8 Bd2 Ne2 Rb1 Ng1 Qh8+ Nf6 Qg7 Ke5 Qh7 Ng8 Qh8+ Qf6 Kb2 a1Q+ Kc1 Qd4 Be1 Qd1+ Kb2 Qdf3 Ka1 Qg7 Bd2 Qgf6 Ree1 Qg7 Bf4+ Kd4 Re3 c3 Bg5 Qe5 Bf6 Qh3 Bg7 Qhf3
2N1Q2B/2R3bB/1PB1r2Q/NQ2b1pq/p1K5/n2RP1P1/4kpp1/n1q2bq1 w - - 0 1 illegal: No proof kernel
3q4/1prp1p1n/1QpP1n1N/3Q1P1P/1qqN1k1r/1RBb3Q/3R3N/n3K2B w - - 0 2 illegal: No proof kernel forced: wxLB
1n5R/3bP2r/Q2rb3/rp1Nk1p1/1BqpN2p/K1N2Q2/1P1PB2R/1bq3R1 w - - 0 2 illegal: No possible last move
qn1q1r1Q/3pRQ1Q/N5P1/2P2p2/1KRNqBBr/p5b1/bp2BP2/6kr w - - 0 1 legal: proof: d4 b5 b4 c5 h4 g5 a3 gxh4 a4 e5 Bf4 Na6 Bc1 Nc7 bxc5 exd4 Bb2 b4 Bc1 Nb5 axb5 Bb7 Bf4 Ba6 Bc1 Bc8 Kd2 Ke7 e4 Kf6 c4 Ke5 g4 Kf4 c6 h5 g5 f5 g6 a5 b6 d3 c7 h3 c5 h4 e5 h2 e6 b3 Kc3+ d2 e7 a4 e8Q h3 b7 a3 b8Q b2 Qf7 Be7 Be2 Bd6 Kb4 Ba6 c8B Ne7 Bb7 Bc4 Nc3 Rh4 Bbf3 Ba2 Bg4 Be5 Nf3 Nc6+ Kb5 Bd6 Re1 h1Q Nd4 h2 Nd5+ Ke4 Nb4 Bg3 Qdb3 d1Q Na6 Qc2 Bf4 Qf3 Qa4 h1R Rac1 Qg2 Qc8 Nb8 Kb4 Qd3 Rc4 Qdf3 Bd1+ Kd3 Qac6 Qe4 Qcd5 Qgf3 Qh7 Qg2 Re3+ Kd2 Bde2 Ke1 Qdf7 Qgf3 Bd1+ Kf1 Be2+ Kg1 Qe7 Ra7 Qef7 Qa8 Re7 Qfe4 Qc6 Rc7 Qcf6 Rc6 Qfh8 Rf6 Qfg8 Rf8 Qd5 Rg8 Qdf7 Rf8
2q2Qr1/1pN2B2/BpqNp3/n1k3KP/7r/2nb2Pr/nRpRP3/R1B2Q2 w - - 0 1 illegal: No proof kernel
4Rb2/1Qpk1Nbp/2q1pP1n/1pR3NR/3K1B2/Nq1rPbqB/7P/Q4r2 w - - 0 2 legal: proof: c4 a5 b4 f5 g4 fxg4 a4 d5 cxd5 axb4 a5 b5 Nh3 Nd7 Ng1 Nb6 axb6 Qd6 Ra5 Qd7 Ra1 Qd8 d4 g5 Kd2 e6 Kd3 b3 f4 g3 d6 g2 d7+ Ke7 b7 b2 b8Q g4 d5 g3 d6+ Kf7 f5 Ra7 Ra3 Bb7 Nf3 g1B Bh3 g2 Bf4 Qe8 d8R Nh6 d7 Ke7 Ng5 Bf3 Qb7 Bd4 e3 g1Q Ra4 Qg2 Na3 Bdg7 Qa1 Qg3 Rc1 b1Q+ Rc2 Qa2 Rc5 Ra8 Rac4 Qb3+ Rc3 Ra6 Re5 Rc6 Kd4 Rg8 f6+ Kd6 Rc2 Rc5 Rc8 Rc3 d8N Qc6 Ndf7+ Kd7 Re8 Bh8 Bf5 Rg6 Bh3 Bhg7 Ne4 Rg4 Rh5 Rg5 Rc1 Rf5 Neg5 Bg2 Bd6 Rf1 Bf4 Bf3 Ke5 Rd3 Rc5 Rc3 Kd4 Rd3+
3R2qb/pbQr1Qp1/Nq1qBrN1/1N3P2/1P2p1n1/1b1K2B1/Q1p2RP1/3k4 w - - 0 1 illegal: Other
1R2BBB1/Q2bp2n/2n1Pn2/2p3K1/RP1p2n1/1r1qr1pk/1NN1P3/2R1n1Q1 w - - 0 1 illegal: No possible last move
B3b2n/Q1R2r1R/1bppK1Q1/1P1PQB1P/3B2p1/N1b4p/3k2b1/q1b3nN w - - 0 1 illegal: No proof kernel
2k1rN2/6B1/n1qP1p1b/1PRKn1np/B1p1QPN1/R3p2n/r2Q1n2/Q3B3 w - - 0 1 legal: proof: c4 g5 d4 d5 a4 dxc4 e4 b5 axb5 Qd5 h4 Qd6 d5 Qd8 d6 gxh4 Qg4 Be6 Qd1 Bd5 exd5 Qd7 Na3 Qc8 Nb1 Qd8 Kd2 Kd7 Ke3 c5 Ke4 a5 b4 e5 g4 h5 f4 h3 g5 c3 g6 c2 b6 h2 b7 a4 g7 a3 Nc3 a2 Bb5+ Nc6 b8B Be7 Nge2 Bf8 Nd4 Kc8 Bd2 c1N Ba4 Nh6 g8Q Qc7 b5 Ne2 Ne6 Ng1 Qh7 Nh3 Be1 c4 Rg1 h1N Rg5 Bg7 Nf8 f6 d7+ Kb7 d8Q Nf7 Ba7 Bh6 Bc5 Ra5 Qd6 Kc8 Qd2 Ra8 Nd1 Rg8 Ne3 N1f2+ Kf3 Ra5 Ng4 e4+ Ke3 Nce5 Kd4 e3 Qe4 Ra7 Rf5 Nfg5 Qa6+ Qb7 Qaa5 Qc7 Be7 Ra6 d6 Ra8 Kd5 Rh8 Ng6 Re8 Bf8 Ra7 Bg7 Ra6 Rc1 a1N Nf8 Nb3 Rc3 Nc5 Ra3 Ra7 Qac3 Ra5 Qa1 Na6 Kd4 Nd7 Rc5 Ne5 Bd1 Ra4 Kd5 Ra5 Rc3 Ra3 Ba4 Ra2 Ra3 Qc6+
2R5/nKPN1Q1B/n1n3pP/1p2b1N1/n2N1Rp1/QPpq1b2/3B2Q1/1n1kr3 w - - 0 1 illegal: No proof kernel
1Q3Q2/pq2Brb1/5np1/1npn1NP1/4N1k1/Bn1PRp1n/b1P5/BR3K1Q w - - 1 2 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 e4 Na6 g5 Rb8 Bh3 Rb6 Bg4 hxg4 Kf2 Re6 Ke2 dxe4 Ke1 e3 Ra2 e4 Ra1 Re5 fxe5 Rh7 Kf1 Rh3 Ke1 Rh8 b4 Kd7 h4 Ke6 d3 Kf5 e6 c5 e7 g3 e8Q g2 h5 e2 b6 g6 h6 Qc7 h7 Kg4 b7 f5 b8B f4 b5 Qb7 b6 Nb4 Qf7 Bg7 Bd6 Nd5 Rh6 Be6 Rh3 Ngf6 Ba3 Rf8 Nf3 g1N Qe7 Bg8 Nd4 Rf7 Re3 Nh3 h8B Qa6 Kd2 Qb7 Qh1 e1N Ke2 Nf3 Nf5 Nd2 Qf8 Nb3 Ke1 f3 Nd2 Nc3 Kf1 Nb5 Ree1 e3 Rab1 Nf4 Be7 N4d5 Ne4 e2+ Kf2 Qc8 b7 Qa8 b8Q Qb7 Rec1 e1N Kf1 Ng2 Re1 Ngf4 Re3 Nh3 Re2 Bh6 Bg7 Nh5 Bc3 Bg7 Re3 Nhf6 Ba1 Nc1 Qa8 Ndc7 Qfe8 Rf8 Neg3 Ba2 Ne4 Nb3 Qab8 Rf7 Qf8 Ncd5
b2B2R1/4Q2p/4b3/Qn1PNB2/Kp4pN/b1b1Rp2/P1qk1NrP/1nb3R1 w - - 0 1 legal: proof: f4 d5 g4 f5 b4 e5 Kf2 b5 Ke1 a5 c3 axb4 fxe5 f4 c4 dxc4 Qa4 Ra6 Qb3 Rf6 Qd1 Rf5 gxf5 Bb7 Nh3 Ba6 Ng1 Bc8 e4 Ke7 d4 c5 Kd2 g5 Kc2 b3+ Kc3 f3 e6 Kd6 e5+ Kd5 e7 Ke4 e8R b2 e6 b4+ Kc2 c3 Kb3 c4+ Ka4 c2 f6 c3 f7 Nc6 e7 Bg7 f8N Qc7 Qd2 Na7 Ng6 Nf6 Nh4 Rg8 Na3 b1B Nh3 Nd5 Nc4 Nb5 Rg1 Be6 Ne5 Bh8 Bb2 c1B Qd1 Ke3 Nf2 c2 Bh3 Rg7 Rg8 Qc6 Qf1 Kd2 e8Q Qc4 Qe7 Ndc3+ Ka5 Qc5 Bf5 Qc6 Qc4 Qc8 Qd5 Qc4 Ba3 Bb2 Re1 c1B Re3 Be4 Qdc5 Bb7 d5 Nb1 Ka4 Ba8 Qcc7 Rg6 Qa5 Qc2+ Rb3 Bd4 Bb2 Be3 Bd4 Ba3 Bb6 Bf4 Ned3 Bc3 Ne5 g4 Bd8 Rh6 Nhg6 Rh3 Nh4 Rg3 Re8 Ke2 Rh8 Rg2 Rg8 Nd2 Rg1 Nb1 Nd7 Bfc1 Ne5 Qd3 Rh1 Kd2 Rg1 Bc3b2 Rc3 Qe2 Re3 Bc3 Nf7 Qd3 Ne5 Qc2+
B1B2b1Q/pPb5/1NP1R2p/3R3P/2pQ1QN1/2rb3n/1q1Bp3/k2nbn1K w - - 0 1 illegal: No proof kernel
r1BB4/1K1bppnQ/n2Q1Rn1/N1pR1pNr/Q1Pr2R1/q7/5P1P/k6r w - - 1 2 illegal: No proof kernel
1qB3NQ/nR1n1kNB/rP5p/2p5/4bp2/1r2PnKP/Rp1Q1r1N/4B2r w - - 0 1 illegal: No possible last move, all moves rejected
n1nR4/rn3Q1q/2B1p1P1/NRN1k1nr/R2p4/KP2P3/2Q3pp/b1B1r1N1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 Kf7 f4 Ke6 c4 d5 Kc2 h5 Kb3 a5 f5+ Ke5 g5 a4+ Kb4 a3 b6 h4 c5 a2 f6 e6 b7 d3 e3 d2 g6 h3 f7 h2 Qe2 d1R Qf2 Qd7 Nc3 Re1 Qc2 Ne7 c6 Rh5 c7 Ra7 c8R Bg7 f8Q Na6+ Ka3 Nc7+ Na4 Na8 Rd8 Nc8 b8N Qb7 Rb1 a1N Qf7 Nb3 Bb5 Na5 Bc6 Qc7 Nc5 Nb7+ Nba6 Bf6 Nb3 Bh8 Na5 Qd7 Qe8 Qh7 Nc5 Bf6 Qf7 Bg7 Nh3 g1N Ra1 Nf3 Ng1 g2 b3 Ncb6 Rb8 Nc8 Ra2 Nd8 Rb5 Nb7 Nh3 Re2 Rd1 Ng5 Ng1 Bh8 Kb2 Re1 Ra4 Kd6+ Ka3 Ba1 Rdd4 Ke5 Rdb4 Nbd6 Rb8 d4 R4b5 Ne7 Rg8 Nec8 Rd8 Nb7
BR2q3/2prPb2/3B1N2/1P2Q2p/1R1Kp1Q1/k1P3N1/prR4n/1r2rQbb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 e4 e5 Qh5 Nc6 Qe2 dxe4 Qd1 e3 Ke2 e4 Ke1 Ne5 fxe5 Ke7 Nf3 Kd7 Ng1 Ke8 Ke2 Ke7 b4 h5 g4 a5 d4 f5 g5 a4 g6 a3 g7 a2 d5 h3 b6 h2 b5 f4 b7 Ra6 b8R Rh7 e6 Kd6 e7 Kc5 d6 Kb4 d7 Qe8 d8Q Nf6 g8Q Rf7 Q8d5 Rd6 Qg4 Bg7 Qe5 Be6 Nc3 Rd7 Nd5+ Ka4 Bd2 Ka3 c3 Bh8 Rc1 f3+ Ke1 e2 Kf2 e1R Bc4 Rf8 Bf4 Re3 Ne2 Bf7 Qf1 Rg8 Rg1 h1B Rg2 Rg5 Rb1 Rg8 Rb4 Rf8 Ke1 f2+ Kd2 Rg8 Ng3 Rf8 Qb1 f1R Qd3 Rb1 Qf1 Rd3+ Ke2 Rd2+ Ke3 Rdb2 Kd4 Rg8 Qg7 Ng4 Rc2 Nh2 Qg4 Rg6 Ke3 Rgd6 Nf6 Rd2 Bd5 Re2+ Kd4 Re3 Qef5 Bg7 Bd6 Bh6 Qe5 Bf4 Nf5 Bg3 Bb7 Bf2 Ng3 Bg1 Ba8 Ree1+
5BN1/1Pq2pp1/r1p5/1pnQPKbr/2brb1N1/2RR1R2/N1P1B3/2Qr3k w - - 0 1 illegal: No possible last move
1nbnk3/4N1K1/3pRpRp/N2P2n1/3NB1Q1/b3p1qq/1n2P1P1/1Q1rQ2B w - - 1 2 illegal: Other
b2K3k/1p3BR1/pR4Qb/Pr6/p2n1B1N/P1q1rq2/4Ppb1/b1QR1B1N w - - 1 2 illegal: Other
3r3Q/3br1Q1/Q3p1Np/1RqN4/BbB4P/r1P1P2q/2p1R1pK/r1n2kB1 w - - 0 2 legal: proof: c4 b5 g4 f5 b3 fxg4 cxb5 a5 b4 axb4 Nh3 c5 Bg2 c4 Rg1 c3 Rh1 c2 Ng1 Na6 Bf1 Nc5 Na3 Ne4 Nb1 Nc3 dxc3 Qc7 Na3 Qa5 Nb1 Qd8 h4 Kf7 a4 Kg6 f4 Kf5 Kf2 Ke4 Kg3 d5 b6 g5 f5 h6 b7 b3 b8Q e6 a5 d4 a6 b2 f6 d3 f7 d2 a7 Ke3 Na3 b1R Nb5 Nf6 Ba3 Qd3 Kh2 Kf2 Nc7 Bb4 f8Q Bd7 Nf3 Nh5 Ne5+ Nf4 Qg7 Re8 Ng6 Re7 Qbh8 Rb3 Rg1 Rd8 a8B Qe3 Bd5 Nd3 Bc4 Nc1 Nd5 Qd3 Rb1 g3+ Kh1 g2+ Kh2 g4 Rb2 Na2 Qa1 d1R Bb5 Qe3 Ba4 Nc1 Rb1 Qc5 e3 Ke1 Bc4+ Kf2 Re1 g3+ Kh3 g1Q Re2+ Kf1 Rb2 g2 Rb1 Qf2 Kh2 Qf3 Qa2 Qc6 Rb2 Ba5 Bd6 Ra3 Rb5 Bb4 Bg3 Qc5 Bf2 Nb3 Bg1 Ra1 Bd3 Nc1 Qc4 Qa7 Qc6 Qb6 Bc4 Qc5 Qa6 Qh3+
5q1B/qK4bn/N4QR1/1P1kp1nR/pp6/1b1pP2R/1B2N1P1/rB1nnQ2 w - - 0 1 illegal: No proof kernel
k2N2N1/n2bbrR1/2pp2p1/3r3P/1p1Q2BK/BP3QPB/3b4/1Rqbq1N1 w - - 0 2 illegal: No proof kernel
r1N3b1/3b2nb/3N1pqk/RP3pbB/p5PN/1pQ2q2/BB1QnPR1/5K2 w - - 0 1 illegal: No proof kernel
3Q2n1/1N1n2p1/Rnpp3k/P1rQ2br/p1N2n2/1BP2NQq/3PR2q/2K4B w - - 1 2 illegal: No proof kernel
1K2n1b1/1pNpN1R1/r2P1R2/Q1bn2R1/1p3nP1/2B1prrk/n1P5/Q2BB3 w - - 0 1 illegal: No proof kernel forced: wxLB
3N4/nrp3p1/1n1N1PQB/3pR1b1/QPPQB3/3b1pn1/B4brk/b1KR4 w - - 0 1 illegal: No proof kernel
1n5R/3P3p/b2kpb2/bB1p2N1/2rBrb2/R1P3rP/pQ3nR1/NKN4Q w - - 0 1 illegal: No possible last move, all moves rejected
k1N2n2/pNQ2B2/1nPN1pqr/R6n/2n3pR/4p2K/PqQ3P1/n1B1R1b1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 Ne2 cxb4 Rg1 e5 Rh1 e3 Ng1 e4 Be2 Na6 Bd3 Ke7 Bf1 Ke8 Qg4 b5 Qe2 Rb8 Qd1 Rb6 Nc3 Re6 Nb1 Re5 fxe5 Qd6 Qf3 Qd5 Qd1 Qd8 h4 g5 h5 Bd7 Be2 Bf5 Bf1 Bg6 hxg6 Qc7 Nc3 Qb6 Nb1 Qd8 c4 Kd7 d4 Kc6 e6 Kb7 e7 h5 e8N h4 c5 h3 c6+ Ka8 d5 h2 d6 e2 Kf2 e1N Kg3 b3 d7 b2 g7 f6 Bf4 b4 Kg4 b3 Nh3 Ne7 g8Q Rh6 Bc1 Nc8 Qd3 Nb8 Nc3 b1N Qg7 b2 Nf2 Nc2 Nb5 Bc5 Nbd6 Nba3 Nb7 b1Q Ned6 Qg8 d8R Nb6 Nc8 Nac4 Qc7 Qg6 Rd5 Qb2 Kg3 Bd4 Ra5 N8d7 Rb1 Na1 Qc2 Nf8 Be2 e3 Bh5 Be5+ Kh3 Bd6 Re1 h1N Ne4 Bh2 Ned6 Ng3 Rh1 Qb5 Re1 Bg1 Rb4 Qe5 Rba4 Qb2 Rb4 Ne5 Rh4 Nec4 Bg4 Nh5 Be6 Ng7 Bd5 Nh5 Bf7 g4+
5rq1/rprR1pKp/3b3R/QrBk3N/2R1p2B/1r2P1NP/5P2/QN2nr2 w - - 1 3 illegal: No possible last move
1B4Nq/p1K5/1QpQ4/B1P2Bb1/Q1bq2p1/p1r2bq1/PN1kb1P1/r1R1R3 w - - 1 3 legal: proof: f4 e5 d4 exd4 e4 g5 h4 g4 e5 b6 Qd2 Nf6 Qa5 Ne4 Qa4 Ng5 hxg5 Nc6 e6 Ne5 Qa5 bxa5 fxe5 a4 Ke2 Ke7 Kd3 f5 Kc4 h5 Kb5 d5 Kc6 f4 b4 h4 c4 d3 g6 d4 g7 a3 g8Q d2 b5 d1Q b6 f3 b7 h3 b8B d3 Nd2 f2 Ngf3 h2 Nh4 Qe1 Qg6 Bh6 c5 Qd4 Nc4 d2 Rg1 d1B Nb2 h1Q Bd2 Bg5 Rc1 Ba6 Ba5 Bc4 Bd3 f1B Bf5 Bfe2 Qh6 Qg3 Re1 Rh7 Kb7 Bf3+ Kc8 Bde2 Ng6+ Ke8 e7 Kf7 e6+ Kf6 e8Q c6 e7 Rf7 Qhf8 Qh8 Qh6 Rh7 Qd8 Rf7 e8Q+ Re7 Qb6 Re3 Kb7 Rc3 Bf4 Rc8 Bb8 Rd8 Qe4 Rd5 Qc2 Rd6 Ne7+ Ke5 Qf6+ Kf4 Qa4 Ke3 Ng8 Kd2 Kc8 Rd7 Qd6 Rb7 Qbc7 Rb4 Qb6 Rb5 Kc7 Rb4 Nd3 Rb1 Nb2 Ra1
2N3K1/np2b2p/2B3qQ/bR2Bp1N/3bRn1N/1b1Q3P/1P1qPk1p/n4B2 w - - 0 1 illegal: No possible last move
2rrK1Bk/1p1N1p2/1P1rb1q1/pB2pR2/4bP1b/2N1PbQN/1Qr4R/7R w - - 1 3 illegal: No possible last move
2R5/2bP4/BR2pp2/P2n1P1N/ppK1rBkn/BQ1pQr2/3bq3/n1Q1N3 w - - 0 1 illegal: No proof kernel
b3q3/NpKbPR2/3Qnr2/1P1p1p2/Q3N2r/3B1R1b/1RpPp3/BBn4k w - - 0 1 illegal: Other
2K3nQ/NB3QP1/1qp1R1R1/3b1nB1/1P1p1r1P/2k1rqp1/1b1pp3/4NBN1 w - - 0 1 illegal: No proof kernel
1B1k2n1/QQNp2K1/N2p2rB/3P1p2/3qpP1R/6Rn/NPpR1nb1/r4r2 w - - 1 2 illegal: No proof kernel
3Nk2b/NK4RR/2ppP2Q/n1p2RP1/ppn1Bq2/8/PB4N1/q1nbQ1r1 w - - 0 1 illegal: No proof kernel
3kb1Rr/2rp2R1/1p1P2pP/2QQp1N1/b1nrBnPB/B7/Npb5/4R2K w - - 1 2 illegal: No proof kernel
nnN1QB1k/1p3ppN/4PQ2/1B1np2q/2K4N/p3R1R1/1P2P1Rr/3bbn2 w - - 1 2 legal: proof: f4 a5 g4 h5 a4 hxg4 c4 d5 cxd5 e5 f5 Ra6 Na3 Nc6 Nb1 Nb4 Bg2 Re6 fxe6 Na2 Bf1 Qd7 Qc2 Qxa4 Qb3 Qd7 Qd1 Qd8 d4 c5 Kd2 c4 h4 a4 h5 c3+ Kd3 g3 d6 a3 d7+ Ke7 h6 Kf6 h7 c2 d5 g2 d6 Qe8 d8R Nc3 d7 Ne7 Kc4 Rg8 h8Q Ned5 Bd2 c1N Rh2 Nb5 Bb4 Bc5 Nf3 g1N Nbd2 Na2 Ne4+ Kg6 Bg2 Bf2 Bf8 Nbc7 Nf6 Na8 Qf1 Be1 Nh7 Nab4 Nh4+ Kh6 Rd1 Nf3 Rd3 Nc6 Re3 Nb8 Bh1 Qe7 Rg2 Nh2 Qf4+ Qg5 Qf6+ Qg6 Rf2 Ne7 Bc6 Nf1 Bb5 Nd5 Rg2 Nh2 Re8 Nf1 d8N Bd7 Re7 Be8 Nc6 Bd7 Na7 Be8 Ba6 Ba4 Bb5 Bc2 Nc8 Bd1 Qf2 Qh5 Rd7 Nf6 Rdd3 Nd5 Bc5 Re8 Reg3 Rf8 Rde3 Rd8 Qf8 Re8 Qe7 Rf8 Qe8 Rh8 Ng5 Rh7 Bf8 Rh8 Ngf3 Kh7 Ng5+ Kg8 Qf3 Rh6 Nh7 Kh8 Qf6 Qf3 Nf5 Rh2 Nh4 Qh5
r3qR1Q/p1pb2bp/QQ1B2B1/7r/PR1pP3/1NPr1p1r/1N3b2/2NK1k2 w - - 0 1 illegal: No possible last move, all moves rejected
1BRB2RK/pp1p1Qpb/Qq3rP1/1B1r4/5Q2/PPpb2Nb/3b4/2Nk3q w - - 1 3 illegal: Other
3n3r/p2RQ3/5N2/1prPQ1pP/Pp2B3/R5p1/BR1Nqp1b/1nBkn2K w - - 0 1 legal: proof: g4 e5 e4 c5 b4 cxb4 Bd3 d5 Be2 h5 Bf1 Bf5 exd5 hxg4 f3 e4 Ba3 e3 Bc1 Be4 fxe4 Qa5 Bc4 Qc7 Bf1 Qd8 h4 Kd7 a4 Kd6 d4 b5 c4 g5 c5+ Kd7 c6+ Kd6 e5+ Kc7 e6 Kb6 d6 Ka5 e7 f5 e8Q f4 d7 e2 Kf2 e1N c7 f3 c8B Bh6 d5 Qe7 d8R Bg7 h5 Nc6 Rd7 Nf6 Rh2 Nd8 Bc4 Kb6 Ba2 Kc5 Qe2 Kd4 Qe5+ Kd3 Nd2 Kc2 Ne2 Kd1 Kg1 Ne4 Kh1 Nc3 Ng3 Nb1 Nge4 Bf6 Re2 f2 Qf7 Bg7 Nf6 Bf8 Qh7 Qe6 Qf7 Bd6 Qe7 Bc7 Re3 Rb8 Rb3 Rb6 Rb2 Rc6 Bc4 Rc5 Ra3 Qf5 Ba2 Qd3 Rd6 Qc4 Bf5 Qe2 Rd7 Bd6 Be4 Bb8 Q5e6 Bh2 Qe5 g3
R1r5/3rB1pP/1R2p2p/3p4/b1kb3n/Q5Q1/q1pPN1pP/rRNKN2B w - - 0 2 illegal: No possible last move, all moves rejected
1bRR1NQ1/qB1ppqpQ/1Q4PP/1p4k1/1r2p1P1/1r4nR/1K3B1p/n1N5 w - - 0 1 illegal: No possible last move, all moves rejected
Bbr1n1NK/5b1B/kq1p4/rrQQ1q1p/3R1n2/3n3P/b2P2RP/3Q1qBN w - - 0 1 illegal: No proof kernel
B1rb2Nn/k4pp1/4rP2/K2bbQPR/Q1q2PQ1/br1R2R1/n1NBb1n1/8 w - - 0 1 illegal: No proof kernel
kN1nR2K/qp1BqNB1/1b1n3q/1P1N2p1/1B2Qr1P/1rR1bq2/q5P1/5Q1b w - - 0 1 illegal: No proof kernel
2k1NK2/1RqbBrpp/1bb2P2/2QB1R1r/3Q2PP/r1bn4/1R1N1Qn1/6qb w - - 0 1 illegal: No possible last move
7r/p1r2Nr1/k1rNp3/b6n/2PK2R1/PRBbPbQ1/1RrB1n2/q1qB1Q2 w - - 0 1 illegal: No proof kernel
1qn4B/PB2N1r1/N2q4/R2RpQq1/1pb1PQ1q/2n3bn/1PN2b1k/1r2RK2 w - - 0 1 illegal: No proof kernel
1q1n2nK/1N6/1Q6/2bbrbp1/P4n1p/Q1RN3N/Rr1rk1PP/1BQnB2q w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 b5 d4 g5 d6 c5 d5 f5 d7 h5 d6 f3 Qe1 f2 Bf4 b3 Ke6 b4 Kf7 b2 Bg3 f4 Qd1 b3 Nc3 b1Q Nh3 f3 Qc1 b2 Bf4 h4 Ra3 Nc6 Bd2 Ra5 e4+ Kd4 e5 c4 e6 Re5 Ne4 c3 e7 c2 Bb5 f1B e8N f2 Kg6 Bc4 Rc3 f1N Nef2 Ne3 Nd3 Nd1 Be1 Bd5 Ba6 Qc7 d8Q Qb8 d7 Bc5 Qb6 Nd8 Kg7 Qa1 Nd6 b1R Rf1 Rb2 Rf2 Qb1 Rd2 Ke3 Nb7 Rh6 Qb3 Rd6 Qa3 Qa1 Bc4 Qb1 Kh8 Qa1 Qb1 c1N Ba2 Ne2 Qc1 Nf4 Bb1 Nc6 d8Q Bf5 Qe8 Nd8 Qg6 Rdb6 Rf2+ Rd2 Qh6 Rb2 Qb6 Nh5 Rf4 Ke2 Rfc4 Nf4 Rc2 Rb3 Ra2 Rbb2 Rc3 Bfe6 Bg3 Bd7 Bc2 Bc8 Qb1 Nf2 Qh1 Qc1 Bb1 Bf5 Qd1+ Ke3 Qc2 Qh1 Qc1 Nd1 Be1 Ke2
1BBb1rq1/3bp3/bR2Prpq/q1NQ1nkP/2K1n3/b7/1R4P1/RB1rQ1N1 w - - 0 1 illegal: No proof kernel
2BBR3/n1pN4/1p2qR2/bP1Rn1q1/3P1rB1/r1PQ2K1/Qr1q4/bb2kq1N w - - 0 1 illegal: No proof kernel
bB2BB2/2NP3r/Qppr1qq1/KR1qk3/1P3b2/1RPn3b/2R1N2b/3n1nQ1 w - - 0 1 illegal: No possible last move, all moves rejected
1rr2q1Q/1b1Kp3/2nr4/NBB1RQR1/N1P2Npq/2Q1n1P1/k2bP3/2bbq3 w - - 0 1 illegal: No proof kernel
b1Bb3k/n3qq1p/b1pQ3r/2P1q1RN/4Rr1Q/n2NPn2/R1n1KBNP/8 w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 c4 Kf7 b4 g5 f4 Kg7 f5 d5 e3 a5 b6 g3 c5 g4 b5 d3 b7 a4 b6 g2 Bb2+ d4 Nf3 g1Q Qe2 d2+ Kd1 a3 Ne1 g3 Qg2 a2 Nc2 Qe7 Qe2 g2 Nb4 Qf2 Rg1 Nc6 b8N Na7 b7 Nh6 Qf3 Nf7 Qh3 Ne5 Qh4 Nc4 Nd3 Na3 Nd7 Qg3 b8R Ba6 Nc3 Qge5 Ke2 d1B+ Kf2 Ba4 Nf6 Bc6 Rb4 Rd8 Ne2 Rd6 Nef4 Ba8 Be2 c6 N6h5+ Kg8 Rc4 Rh6 f6 Qf7 Ra4 Be7 Bg4 Bd8 Bc3 Qee7 Ke2 Qe5 Rad1 a1N Be1 N1c2 Bc8 Qee7 Rd2 Qe5 Rf1 Qfe7 Bf2 g1N+ Kd1 Qf7 Ng2 Nf3 Ke2 Qee7 Rg1 Qe5 Ng3 Qfe7 f7+ Kg7 Qh3 Rf8 Nh5+ Kh8 Rc4 Rg8 Qh4 Rg4 Ra4 Rf4 Rb4 Q7g5 f8Q+ Qg8 Qd6 Qf7 Ne1 Qee7 Rg5 Qe5 Rc4 Qee7 Nb4 Qe5 Ng2 d3+ Kd1 Qfe7 Re4 Qf7 Re2 d2 Nd3 Qee7 Re1 Qe5 Ke2 Qfe7 Ra1 Qf7 Ra2 Qfe7 Be1 d1Q+ Kf1 Qb1 Ke2 Qb3 Bf2 Qbf7
k1Bnrqn1/b5Np/2qB4/1p1b1Q2/1Pnr2qK/NP3R1N/3Q1b1P/3RnR2 w - - 0 1 illegal: No possible last move
1Bn5/1pr1k2N/1P1nnR2/1bbB3b/1KpPq2Q/1R1b1N2/2P3br/b1QB2Q1 w - - 0 1 illegal: No possible last move
4Rq2/3n4/3N4/BKQprrb1/2pP1RNb/1QP1P2n/Qbr5/bRrB1b1k w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 Ra2 hxg4 Ra3 Qf6 Ra1 Qd8 h4 Ke7 d4 Kd6 Kd2 Kd5 Kc3 Ke4 Kc4 g5 b4 f5 c3 c5 h5 a5 b6 d5+ Kb5 c4 b7 a4 h6 a3 h7 f3 Qb3 f4 Qb2 a2 Bg2 g3 Rh2 g4 Rh6 Nf6 Qa3 Nbd7 b8R Nh5 Bh1 g2 Nh3 g1B Qb2 g3 Bg2 Bf2 Bf1 g2 Be3 g1B Bd2 Bh4 Rf6 f2 Na3 f3 Bg5 Nf4 Rb1 a1B Qa2 Bh6 Rf7 Qf8 Bd8 B6g5 Ba5 Ra7 Bg2 f1R Nf2+ Ke3 Bh3 Rc1 Bg4 Nh3 Rf4 Ra6 Bh5 Re6 Ra8 Rg8 h8Q Re5 Qg7 Rc2 Qe7 Rg6 Bg4 Rf6 Qc5 Rff5 Bh5 Bb7 Re8 Bc8 Ka4 Bh2 b5 Bg1 b6 Bh2 Nh1 f2 b7 f1R b8Q Rfc1 Nb5 B2g3 Nd6 Be1 Rf1 Bd2 Nf2 Kf4 e3+ Kg3 Ng4 Kg2 Rf4 Kh1 Rb3 Rd1 Rb7 Bc1 Rb1 Bcb2 Qbb3 Rdc1 Kb5 Nb8 Nh6 Be6 Bd1 Nd7 Qaa4 Bg8 Qaa3 Bh7 Qaa2 Bg6 Ng4 Bh5 Nf6 Be2 Ng4 Bf1
1RQR3Q/B3kp2/3nb1p1/r3b1P1/Pr3Pr1/1rr2nN1/K1bb1RN1/3q1B1N w - - 0 1 illegal: No proof kernel
1RQ1Bk1B/2pQb2n/B4N2/5P2/1q1n1K2/n2R2pb/nRP1NrP1/nnr3q1 w - - 0 1 illegal: No possible last move, all moves rejected
1bB1bRr1/1n1pr2n/3PNp2/5PPN/q1r2B2/R1n2Q2/1b1QK3/Q1R2nkb w - - 0 1 illegal: No proof kernel
BQR1N3/pnBr4/PbK1b1r1/2N2kpb/8/2R4r/1qP1nbPN/Q1Q1r1n1 w - - 0 1 illegal: No proof kernel
kr6/2PN1nN1/b1p1qRn1/2Qn1bp1/Q1b4N/2Pr2PB/1bn4R/2KQB1r1 w - - 0 1 illegal: No proof kernel
Q1bBBnr1/4p1b1/3RR1p1/1N3Pr1/K1Qn1bk1/b3P1q1/1nN3Pr/1Q2nR2 w - - 0 1 illegal: No proof kernel
1Nk5/q2rQ2r/1Qnr1p1n/1b2p2q/P3P1B1/K1BbQPRb/1bB5/3RN2r w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h3 axb4 h4 gxh4 e4 Kd7 g4 b5 a4 c5 d4 h5 Kd2 c4 Kc2 b3+ Kb2 b4 f3 h3 g5 h4 d6 h2 g6 h3 g7 Nc6 d5 Rh7 Ra3 Ra7 Qe1 Nh6 g8B Qa5 Ne2 Bg7+ Nd4 e6 Rg1 h1Q Rg3 h2 Bd2 c3+ Ka1 b2+ Ka2 c2 Bd3 c1R Bc2 Rb7 Qe3 Qa7 Rd3 b3+ Ka3 Rd1 Bc3 Be5 Rd2 f6 Bf7 Kd8 Bh5 Rbd7 Rd3 Rd2 Bg4 Rd1 Nd2 b1B Nc4 b2 Na5 Ba2 Rd2 b1B Rd3 Rdf7 d7 Bc4 Rd2 Kc7 d8Q+ Kb8 d6 Rd7 Qe7 Bb5 Bb3 B1d3 Nc2 Bd4 Ne1 e5 Bc2 Bbc4 Bb4 Ba1 Bc3 B4a6 Bb1 Bab5 Bc2 Rc7 d7 Rb7 d8Q Rd7 Qg8 Rd6 Qd5 Bd7 Qb3 Kc8 Bh5 Bh3 Bg4+ Rd7 Qb1 Qg2 Qbb4 h1R Qbd4 Qh2 Qb6 Rb1 Rd1 Rb4 Nb7 Rd4 Nc5 Rd6 Na6 Bhf1 Qc1 Qh5 Qce3 Bh3 Nb8 Bb2+
1b2r2r/4rB1n/RRP1Np2/Nb1pQ3/1Q1PNQ1K/3k1P2/1qbB1q2/rnb5 w - - 0 1 illegal: No proof kernel
1n1qbbQB/3b3p/1Nq3RP/R2pR3/5rn1/rk2B1r1/3P2PK/Q1r1NB1b w - - 0 1 illegal: No proof kernel
1Q3b2/1bK5/B1n1p2R/1q2Q1Q1/N2NBpr1/kbP1rPb1/rn2P1r1/B5Rq w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 a5 Kd3 h5 Ke4 f5+ Kd5 h3 g4 a4 b4 h2 b6 e6+ Ke5 Ke7 b7 d5 g5 a3 g6 h4 f3 d3 b5 d4 g7 d2 b6 d3 Bg2 a2 Nh3 Nf6 g8B Qd7 Qg1 d1R Qe1 d2 Rf1 h1Q Nf2 h3 Na3 h2 Ne4 Rh4 Qg3 Qb5+ Nc5 Ne8 Rg1 Rg4 Bh7 Nd6 Bb2 f4 Rc1 a1B Bd3 Ra7 Bd4 Bc3 Bh3 Bb4 Ba1 Nc4+ Kd4 Kd6 Na4 Nb2 c3 Kc6 Rb1 Bbe7 Nc2 Bh4 Ke4 Ra8 Qg2 Bg3 Nd4+ Kd6 Bc4 Nc6 b8Q+ Kd7 Qe5 Bb7 Qg5 Kd6 Qf2 Ra5 Qe3 Ra7 Nc5 Ra2 Na4 Qg2 Bd3 h1R Rc1 Rh2 Rh1 Rh4 Bf5 Rg4 Bg6 Qg1 Bc4 Rg2 Rh6 Qh1 Bh7 Qb4 Ba6 Qb5 Rb1 Re1 Bg6 d1B Bf5 Bb3 Rc1 Ba8 b7 Rd1 b8Q+ Kd7 Rb1 Rd3 Rg1 Bb7 Nc2 Qh5 Qc5 Qh1 Nd4 Na7+ Ke5 Re3+ Be4 Nc6+ Kf6 Na7 Qcf5 Nc6 Qfe5 Qd3 Qa7 Kc8 Nc5 Qb5 Kf7 Bd5 Ke8 Bb3 Qd5 Kc7 Qb8+ Kb6 Kd7 Ka5 Qde5 Nc4 Kc7 Nb2 Nd7 Ka4 Nc5+ Ka3 Na4 Rh2 Qa7 Rf2 Qb8 Rg2
k1nn2KR/r2pB3/1r2NN2/q2P1qrp/1q1P4/1Q4Q1/b3Nq1P/Rrb1RB2 w - - 0 1 illegal: No possible last move, all moves rejected
bqr1n1q1/4N1RN/1p5n/k2r1R1K/1rBRN3/q1bP1Q1p/QPqr3P/4B3 w - - 0 1 illegal: No proof kernel
1rR5/q4Pq1/q1p1Bn2/1NP2Q1b/1b1nK1Q1/B4N1p/1pr1QBrP/1R1n3k w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 f5 gxf5 a5 Bg2 axb4 Bh3 Na6 Bf1 Nb8 Ke2 Kd7 Ke3 Kd6 a4 Kd5 f4 h5 d4 e5 f6 g5 c3 b5 f5 g4 a5 b3 a6 b2 f7 h4 a7 g3 f6 h3 Ne2 g2 Rg1 b4 Qa4 b3 Qa2 Bg4 Nd2 b1N Rh1 g1R Qa6 b2 Ra2 Nc6 Nb3 Qd7 Nd2 Rg2 Nf3 Bb4 f8Q Rc8 a8Q Qg7 f7 Nf6 Qg8 Bh5 c4+ Kd6 d5 Nc3 Qb5 Nd4 Qaa5 Rb8 Ra3 c6 Qc8 Re8 Qg4 Re6 Bd2 Ree8 Be1 Re6 Kd2 e3+ Kd3 Nd1 Nc3 e2 Bf2 e1Q Qba6 Re7 Nb5+ Kc5 Be2 Qg1 d6 Qf1 d7 Qg1 d8B Rd7 Rc3 e4+ Kd2 e3+ Kd3 Re7 Rb3 Re5 Bf1 e2 Ra3 Re6 Be7+ Rd6 Ra1 e1Q Rb1 Qe6 Be2 Qf1 Rg1 Qd7 Bf8 Ng8 Ke4 Qa7 Bd3 Nf6+ Ke5 Qa8 Bf5 Qa7 Kf4 Qe2 Re1 Qf1 Re8 Qd3 Be6 Qa3 Qa4 Qa1 Qc2 Qa5 Qc8 Q5a6 Re7 Rd5 Qe2 Re5 Qd7 Re3 Qc8 Rc3 Qd7 Rc2 Qd5+ Kb6 Qde4 Kc5 Qef5+ Kb6 Ke5 Kc5 Re8+ Qe7 Ne1 Ba3 Rd8 Kb4 Nc7 Kc3 Rc8 Bc5 Qf1 Kd2 Nb5 Qea7 Be7 Bb6 Ba3 Ba5 c5 Bb4 Bh4 Ke3 Nf3 Rg3 Q1d3+ Kf2 Qe3+ Kg2 Qe2+ Kh1 Kf4 Rg1 Bf2 Rg2 Ke5 Nd5+ Ke4 Nf6+
Rbn2NB1/2K5/qp1r3q/1P1p1NbN/b4npr/P1Q2RP1/3n2Qr/1k2B1R1 w - - 0 1 illegal: No proof kernel
N2QN1B1/1P5p/2q1rR2/1nkr2bP/n2p1q2/KQbP4/1p1r1R1R/2q1B1Bb w - - 0 1 illegal: No proof kernel
7r/3kB1PN/1R6/1bpB1pq1/RQ1n1n1b/Q1pqBP2/K1PN2r1/4qNrn w - - 0 1 illegal: No proof kernel
1R4B1/1Rp3nq/2r1Qq1B/3B1Pnp/1bPq2p1/2kN1rP1/K2N4/n2bNb1Q w - - 0 1 illegal: No proof kernel
2K1N1qr/2r2p1Q/B2RQBN1/3R1n2/1n1ppN2/1bkPQP2/2q1Pb2/3q2rb w - - 1 3 legal: proof: b4 c5 a4 g5 h4 b5 axb5 cxb4 Ra6 gxh4 Ra5 Qb6 Ra1 Qd8 g4 e5 c4 Ke7 f3 Kf6 Kf2 a5 Ke3 h5 Ke4 d6 Kd5 h3 b6 e4 g5+ Kf5 d3 a4 c5 a3 b7 h2 g6 a2 c6 h4 g7 b3 c7 b2 Na3 b1R Qb3 Ra7 Nh3 Be7 Nc4 Kf6 Ne5 Nh6 g8Q Nc6 b8Q Nf5 Nf4 h3 Qh7 Qg8 Bb2 Re1 Rb1 a1Q Q8b6 Qa2 Qe3 Bd7 c8N Rc7 Rg1 h1B Rg5 h2 Bh3 Rg1 Bd4 Qc2 Neg6+ Ne5 Qc4 Ba4 Rb6 Bb3 Rc6 Ng7 Bd7 Nf5 Ra6 Bf8 Bb5 Bh6 Rh5 Bg5 Rc6 Bh4 Ba6 Bf2 Rc5 Ng7 Rh6 Kf5 Bc3 Nc6 Bf6 Nb4+ Kd4+ d5 Ra5 Re7 Kc5 Rc7+ Kb6 Rc5 Kb7 d4 Nd5 Rc7+ Kb8 Ke6 Ndf4+ Kd7 Rah5 Nf5 Qd5+ Nd6 Qe6+ Kc6 Rh4 Kc5 R4h5+ Nd5 Rg5 Kb4 Re5 Kc3 Rf5 Ne8 Nd6 Nb4 Rd5 Ng7+ Ne8 Nf5 Rh5 Bg2 Rd6 h1Q Rg5 Qh3 Rh5 Bh1 Rg5 Qf1 Rh5 Re7 Kc8 Qfd1 Rg5 Nh4 Ra5 Nf5 Rad5 Rc7+
1kN2r2/2p3NR/P6n/1r5b/1K1p1pBQ/2PPR2b/2Nn1qrB/1QbRq2n w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 gxh5 a5 Bb2 axb4 Ba3 Ra6 Bc1 Ra8 a4 f5 e4 d5 h4 Kd7 h6 g5 d3 b5 Kd2 f3 h5 g4 h7 g3 c3 g2 h6 d4 e5 f4 a5 b3 a6 b4 Be2 b2 Kc2 f2 Kb3 f1B Be3 Nc6 Bf2 Nce7 Nf3 g1Q Nh4 Bh3 Bg4+ Nf5 Ng6 Qh4 Bg3 Qf2 Na3 b1N Bh2 Nd2+ Ka4 b3 e6+ Kd8 Re1 b2 Qb1 Ng3 Ne7 Nh1 Re3 Qe1 Kb5 Qhf2 Nc2 Bb7 Ka5 Bf3 Nc8 Ba3 Ka4 Rb8 Ka5 Rb5+ Ka4 Rf5 e7+ Kd7 e8N Bd1 Bh5 Rg5 Ng7 Rg2 Bg4+ Kd8 Be6 Bh5 Bg4 Ne7 Kb5 Rf8 h8R Nf5 h7 Kd7 Rg8 Kd8 h8Q Nh6 Qh7 Qfg1 Rh8 Qgf2 Qc1 b1R+ Ka5 Rb2 Qb1 Rb5+ Ka4 Nf7 Qh6 Bc1 Rh7 Rf5 Qg5+ Kd7 Kb4 Nh6 Ne7 Kd8 Qh4 Rc5 Nef5+ Kc8 Ne7+ Kb8 Nc8 Rg5 Qb3 Bb2 Rd1 Bc1 Qb1 Rb5+
bq2NQ1n/1Npp1P1R/nrr2K1Q/5QRR/pqP5/r3k3/P6b/BB1n2b1 w - - 0 1 illegal: No proof kernel
R1B1b3/3Rp2Q/5Kbq/n2BNRNp/1kn2rp1/4b2P/r1b1PrP1/b4N1Q w - - 0 3 illegal: Other
2bK2k1/5p2/b1NP3R/r1r1N3/p1Q1pqb1/br2n1B1/Pn2P3/Q1BbRR1B w - - 0 1 illegal: No proof kernel
4b2r/6Bk/5Pp1/pK3n2/PQrRbp1b/N5R1/BbqN1bP1/Q2rnNB1 w - - 0 1 illegal: No proof kernel
n1NB1n1Q/K2QN1pP/p2nnb2/2k1pN2/2rn4/1Rb3P1/1r1QP1q1/1bR4B w - - 0 1 illegal: No proof kernel
1r2n2b/NRBKpNp1/B5kP/2B1b3/1Qr1q3/b3PQP1/p2RRb2/n2br3 w - - 0 1 illegal: Other
N2b1q1N/K2bb2b/r1P2R1p/5pRP/r3B1p1/2r2QP1/1k1B1n2/1nn1B1NQ w - - 0 1 illegal: No possible last move, all moves rejected
3r2qb/3rK1B1/2Qr1Rp1/2N3P1/2k1pRpP/1n1bPBnR/2N1Qb1n/5Nn1 w - - 0 1 illegal: No possible last move, all moves rejected
n2B3b/pQ2rR1b/N4P2/1Brnr2p/P2q2RP/1kN4Q/3pB1N1/2K1b1nn w - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 f5 Be3 fxg4 Bh6 Be7 Bc1 Bf8 Kd2 Ke7 f4 Ke6 c4 g5 e4 d5 a4 h5 h4 b5 c6 g3 c5 d3 c7 d4 e5 Kd5 c6 Kc4 f5 g4 f6 b4 e6 g2 e7 g3 e8B b3 Bd7 b2 Qg4 Bg7 Qf4 Ne7 Qf2 Rh7 Nf3 g1B Ra2 g2 Nc3 b1R Ne1 Rb5 Qe3 Rc5 Rc2 Kb3 Be2 Nd5 Ba3 Bh8 Qh3 Re7 Kc1 Bf2 Rg1 Na6 Bb4 Bb7 c8Q Nac7 Ba5 Rb8 Be8 Na8 c7 Ba6 Qcd7 Rbb5 c8N Qb6 Qb7 d2+ Kb1 d1N Nd6 Bg3 Kc1 Nf2 Nde4 Nh1 Bd7 Qd6 Bd8 Qb6 Rd2 Ra5 Bc6 Bd3 Bb5 Bb1 Rd3 Bf2 Rg3 Qd6 Rg4 Bc2 Ng5 Bh7 Ne6 d3 Nc7 Qe5 Rg7 Qd4 Rf7 Bg3 Na6 Bf2 Rf1 g1N Ng2 Be1 Rf4 Rcc7 Qbc8 Re5 Rg4 Rce7 Be8 Rc5 Bb5 Nf3 Qb8 Ng1 Qb7 d2+
2nQBRb1/2r1p1K1/N4rNp/2r2kPP/B2n2Rb/RnQn4/2b1Pp1B/6q1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 Ra5 gxf4 Ra3 Bb7 Ra1 Bc8 Kf2 a5 Kf3 d5 c4 Kd7 Kg4 Ke6 Kg5 f5 g4 f3 h4 a4 b4 f4 b6 a3 h5 f2 b5 d3 b7 d4 c5 d2 c6 a2 c7 f3 b6 h6+ Kg6 d3 Bb2 Nf6 Qa4 d1B Qa5 d2 Qc3 Ra5 Nh3 Bg7 Bg2 f1R Rg1 Rc5 Na3 Qd4 Nb5 Nc6 b8Q Nd5 b7 Nb6 Nf4+ Ke5 Bh3 Be6 Qd8 Bf6 c8B Bg8 b8R Bh4 g5 Bc2+ Kg7 d1N Nc7 Nf2 Na6 Nd3 Bcd7 Nc8 Be8 Rf2 Rg4 Kf5+ Kf8 Rf1 Ng6 Qg1 Kg7 Nd4 Bc1 f2 Bf4 Rc1 Bh2 Rc7 Bg2 Rc5 Bd5 Rc7 Bb3 Rc5 Rb1 a1N Bba4 Nab3 Ra1 Bf7 Bg3 Rf8 Ra3 Bg8 Bh2 Rf6 Qc4 Ra5 Qdc7 Nb6 Beb5 Bb1 Rf8 Nc8 Be8 Rc3 Qd8 Bc2 Qb4 Rc7 Qc3 Rac5
B1r2r1q/pb2NK1p/Pb4RR/2bPkbr1/QN6/6p1/1RN2n1P/BQn3n1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 Ba6 fxg4 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 b5 Kg5 b4 a4 g3 c4 e3 f4 b3 d4 e2 f5+ Kd7 f6 Ke6 f7 e1B c6 b2 c5 g2 a5 g6 c7 Kd5 a6 Bf2 c6 Nf6 Nh3 g1N Bg2+ Ke6 Qa4 Nbd7 Ra2 Ng4 Na3 b1B Rb2 Bf5 Nc2 Bb7 c8N Nde5 c7 Nd3 Bd2 Nc1 Bc3 Nge2 Rd1 Ng1 Rf1 Be3+ Rf4 Rb8 Nf2 Qe8 Nd3 Nf2 Ndb4 Rg8 Nb6 Rc8 N6d5 Rg7 Kh6 g5 Rh4 Kd6 Rh5 e5 Ne7 g4+ Rg5 g3 Bh1 Rb8 c8Q e4 Qc5+ Ke6 Qcb5 Rc8 Qf1 Na2 Qb1 Nc1 Nec6 Bd6 f8R Bc5 Ne7 Rf7 Rg8 Rf8 Kg7 Qd8 Bg2 Bb6 Rh5 Qe8 Bh3 Kd6 d5 Bec5 Bf6 e3 Rh6 e2 Bd4+ Bg6 Bd7 e1R Bc6 Re5 Bc3 Rg5 Bd4 Rf3 Bc3 Qd8 Bf6 Bd3+ Kf7 Bf5 Rgg6 Qh8 Ra2 Re3 Ba1+ Re6 Rb2 Ke5 Bd7 Rd6 Bc6 Rdd8 Be8 Bc6 Bd7 Ra8 Bc8 Re8 Bb7 Rac8 Ba8 Bb7 Rh5 Red8 Rhh6 Rf8#
6Q1/2Nrq1b1/1kp1pB2/1b2nR1B/RQ1qbB2/K3bPpr/1NPbP3/4Qn2 w - - 0 1 illegal: No proof kernel
QN1B2n1/2p2PQ1/r1Qrn2q/k1Kp2R1/3Pp1r1/2b1Pn1B/3N1qR1/N2r1b2 w - - 0 1 illegal: No proof kernel
6Q1/k1q5/1nprRB2/1p1N2Q1/1P1Nqqb1/2Pp2br/n1BPN1nR/Q1q3K1 w - - 1 3 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 Qf3 a4 Qb3 axb3 g4 d5 a4 Kd7 f4 Kc6 Kf2 Kb6 a5+ Ka7 f6 b5 f5 e5 g5 h5 g6 b2 a6 h3 g7 e4 f7 e3+ Kf3 h4 f6 d4 Bg2 h2 Ke2 c6 Kf1 e2+ Kf2 e1N Kf1 h3 Be4 Ne7 g8Q Ng2 Ne2 Nd7 Nbc3 b1Q Qg5 Nb6 Nd5 Bg4 Bd3 Qb3 Bb2 Qc7 Re1 Rd8 Ba1 Bh6 f8Q Rd6 f7 Qc4 Qfg8 Bg7 f8N Be5 Ne6 Bg3 Rg1 h1Q Be4 Qh2 Rh1 Qd3 Bf5 Qe4 Bb2 Bf4 Kf2 Qg3+ Kg1 Qgf3 Bc3 Bg3 Rh2 Qff4 Ba1 Na4 Bh7 Nc8 Bb2 Nc3 Bf5 Ka8 a7 Na2 Bh7 Kb7 Bg6 Nb6 Bc3 Ka6 a8Q+ Qa7 Bf7 d3 Bf6 Rh4 c3 Rh8 N6d4 Rh5 Qad8 Qc7 Qd7 Ka7 Qdf5 Qfe5 Qf1 Q5f4 Ne3 Qff3 Nc1 Qe6 Rh1 Nh4 Re2 Qe8 Bb3 Qf4 Nd5 Qg6 Re6 Qge4 Nce2 Rh6 Nf3 Rh7 Qa1 h2+ Kf1 Ng2 Bc2 Qfe5 Nfd4 Rh3 Rg1 Nf4 Rg2 h1Q+ Ng1 Q5f5 Rh2 Qfe5 Qb2 Ng2 Qa1 Bf4 Kf2 Q5f5 Nge2 Qc1 Bd1 Bg3+ Kg1 Qb2 Ba4 Qff4 Bc2 Qc1+
4rN2/N1pr1B1p/b6P/PrP1n1Qn/2p1kr1b/2bR4/RN3QR1/1KB2qq1 w - - 0 1 illegal: No proof kernel
3qq2k/K6p/1r5P/n2BnN2/N1pQ1q1N/5B1P/1pP2B1Q/nRbRr1qb w - - 0 1 illegal: No proof kernel
4n3/1n1k3p/QBb2pR1/1qr2PN1/4R2P/rr1np1Q1/1PNn2KQ/2R2qbB w - - 0 1 illegal: No proof kernel
4QbRr/1r1R2Nq/4p1N1/7n/1PQR1p1p/2nq1B1b/1B1qQPqP/2Kb2k1 w - - 0 1 illegal: No proof kernel
Q1Qb4/1BQp4/rp2rbnR/2Nq2nR/3P1pbb/4qP1q/1P1k4/KR1B2N1 w - - 0 3 illegal: No possible last move, all moves rejected
2r1Q3/3nb2k/1Q1B3r/1rP1N3/1Rpq1pp1/1B4q1/nKP3PQ/N1rnR1Bb w - - 0 1 illegal: No proof kernel
B4nr1/1P4N1/1q1qr2B/1p2pQQn/3kbNq1/B6p/1P1KRrrP/1R1N2b1 w - - 0 1 illegal: No proof kernel
1bN5/RrpK1B2/2Rn3P/pp1NBbk1/P1P3br/1br4n/1NQ1q2Q/1q2B3 w - - 0 1 illegal: No possible last move, all moves rejected
N4Q2/1NbPN1pp/1R3Bp1/nqbnnb1q/6PP/3B2RK/k1nrQ3/4R2r w - - 0 1 illegal: No proof kernel
2kn4/5pNR/2b2Kbr/Rr6/N2b1P1p/N3n1Q1/BP3BpP/qQB1r1qr w - - 0 1 illegal: No proof kernel
2Qq1Q1q/1qNp4/1N2pp2/K5Q1/3B1PBR/bR1PP1bn/b5kr/N1nr1b2 w - - 0 3 legal: proof: b4 c5 a4 g5 h4 b5 axb5 cxb4 Ra6 gxh4 Ra5 Qb6 Ra1 Qd8 g4 a5 c4 h5 c5 a4 b6 b3 c6 h3 b7 h2 e3 b2 g5 f6 g6 a3 f3 h4 c7 a2 g7 Kf7 Na3 Ke6 Bh3+ Ke5 Qb3 b1B Qd1 e6 Qc2 Na6 b8Q Nc5 Qg6 Nb3 Nb5 Ba3 Bg4 h3 Ne2 Nh6 g8Q Ba6 Qf8 Nf7 Ned4 Ng5 Bb2 Nc1 c8N+ Kd5 Nb3 Rh4 Nba7 Bf1 Nb5 Ra6 Qgg8 Rd6 f4 Ke4 Bd4 Rh7 Rg1 h1Q Nc7 h2 Nb6 Nh3 Qc8 Qf3 Qgg7 h1Q Qg5 Qh2 Rh1 Qfg2 Bf5+ Kf3 Bg4+ Kg3 Kd1 Qb7 Ke1 Kg2 d3 Rc6 Kd2 Rc2+ Ke1 Re2+ Kd1 Re1+ Kd2 Rd1+ Kc3 Bb4+ Kc4 Be1 Kb5 Bg3 Qa8 Bc2 Rb1 a1B Kb4 Bb2 Ka5 Ba3 Na1 Bb3 Qc8 Ba2 Rb3 Nf2 Rb4 Qh6 Rh4 Nh3 Rb1 Qg7 Rb4 Qh8 Rb3 Ng1 Rh1 Bb2 Rh6 Ba3 Rg6 Rh5 Rh6 Rh2 Rh4 Nh3
7k/2nn1q1r/3qN2b/QN3Bpb/nrrp3Q/KQ2R2p/P2P1BP1/1BR3n1 w - - 0 1 illegal: No proof kernel
1Q1rNq1b/2p1qrBP/1BB1p2p/1NPqr1nk/R7/1Q2P3/b3R2K/5Rnr w - - 0 1 illegal: No possible last move, all moves rejected
3nn1r1/p7/PpQ1RKBb/Q1P1rBN1/8/2bRn1np/NP1qN1bB/q4k2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 e5 g4 h5 f4 b6 a4 d3 c4 h3 c5 d2 a5 h4 a6 h2 Bh3 Rh5 Ne2 Nc6 Nbc3 Bh6 Re1 h1N Na2 Bb7 Qa4 d1N Qa5 Ne3 Bd2 d6 Rad1 Qd7 Bc3 Nd8+ Rd5 Qa4+ Bd4 Qd1 Bc3 Qd2 g5+ Kg7 g6 Kf6 Bg4 h3 g7 Rg5 Bh5 Bc6 Bg6 Ng3+ Kf3 Be8 Rd3 d5 Bd4 Bc6 Bc3 Ne7 g8B d4+ Bd5 Nc8 Be4 Bb7 Bh5 Nd6 Bg6 Qd1 Bd2 Qa1 Bc1 Ne8 Bd2 Ke7 f6+ Ke6 f7 Rb8 f8Q Rh5 Rc3 d3 Qg7 Ba8 Qc7 Bc6 Bc1 d2 Rd3 d1Q f5+ Kf6 Qb7 Kg5 f6 Kh4 f7 Qd2 f8N Ra8 Nh7 Rg5 Bd5 e4+ Kf4 Re5+ Ng5 Nh1 Qh7 Nc2+ Re3 Qd1 Ng3 Nf7 Qb5 Re6 Kf5 Ned6+ Kf4 Rg8 Rd3 e3 Qh8 e2 Bf3 Nd8 Qa5 Ne8 Bg4 Bg2 Kf5 Re4 Be3 Qd2 Qf6 Re7 Qc6 Re4 Nh5 Re7 Nf4 Kg3 Bg1+ Re3 Bh2+ Kf2 Qe4 Ng3+ Ke5 Qdd1 B4f5 Qdc1 Red1 e1B Rd6 Bb4 R1d3 Kf1 Ne2 Qd2 Re6 Bc3+ Nd4 Ng7 Kf6 Re1 Qc6 Re5 Ne2 Ne3 Re8 Nc2 Re7 Ne3 Re6 Ne8+
3RQ2Q/2Np2qr/pp1P2nq/QPN5/1r1Rr2b/3Kqb1R/P2B2nq/1k5B w - - 1 3 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 b5 Nf6 Qg4 Ng8 Qb4 cxb4 Ke2 Kf7 g4 Kf6 c4 Ke5 f4+ Kd4 c5 h5 d3 e5 c6 b3 c7 e4 g5 b6 g6 h3 g7 a6 f6 h2 f5 h4 f7 e3 f6 h3 Nc3 b2 Nd1 b1R Bg2 Ne7 g8Q Nbc6 Nb2 Kc3 d4 Kc2 d5 Na5 d6 Bb7 c8R+ Nc4 Nd3 Rb4 Qg3 Rh7 Nc5 Ng6 Bd2 Be7 Rd1 Qg8 f8Q Qg7 f7 Bh4 Qe1 Kb2 Re8 Bf3+ Kd3 e2 Qh8 Ne3 f8Q Rd8 Qf7 Rb8 Rg8 Re8 Qe6 Re7 Rd8 Re8 Qf7 Re5 Qfe8 Ree4 Qg3 e1Q Ne2 Qf2 Nc3 Qg1 Nd5 Qe1 Rg1 h1Q Nc7 Qh2 Bh1 Ng2 Qf4 Qeg3 Rge1 Qg5 Re3 Qh6 Qg3 Qg1 Qe1 h2 Rc1 Qf2 Rc4 Qg3 Rd4 Qgg5 Bc1+ Kb1 Qc3 Qg3 Bd2 Qe1 Qa3 Qg3 Qa5 Qe1 Kc3 Qe2 Rd3 Qee3 Qef8 Qf2 Qe8 Be2 Rh3 Bf3 Kd3 Ne3 Bg2 h1Q Bc3 Qh2 Bh1 Ng2 Bd2 Qfe3+
2n2r1r/1pB1Q2Q/k2p1qQ1/pnP3N1/P1r5/R3bRrq/bB1P4/KB1bN3 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 c5 bxc5 h5 Ba3 hxg4 Bb2 Rh7 Bc1 Rh8 c4 a5 h4 g5 a4 f5 e4 f3 c6 f2+ Ke2 f4 Kd3 f3 Kc2 g3 Kb2 g2 h5 g4 h6 g3 e5 Qf6 c7 Ne7 h7 Nbc6 Qe2 Nd4 e6 Bh6 Ra3 Nb5+ Nc3 Be3 Rh3 d6 Ka1 Bd7 Bb2 Nc8 e7 Be6 Ne4 Kd7 Ng5 Kc6 e8Q+ Kb6 c5+ Ka6 Qg6 Ba2 Qe1 Rb8 Bd3 f1Q Bb1 f2 N1f3 g1R Qe2 g2 Ne1 Rh1 Rf3 g1R Qed3 Rf8 h8B Qh3 Qh7 f1B Qdg6 Be2 Qe7 Qfe6 Bhf6 Rg3 Qeh7 Bd1 Bd8 Qf6 Qe7 Nb6 c8Q Rf1 Qcf5 Nc8 Qfd7 Rh8 Bc7 Rf2 Rf5 Rf4 Qeh7 Rc4 Qde7 Nca7 Rf4 Rbf8 Rf3 Nc8
nN1q4/3rpKRB/qn2r2p/3r4/1bN1P1P1/QRR3pP/1BQ1rB1b/1b3k2 w - - 0 1 illegal: No proof kernel
r2Q1B2/3nbN1K/1Pnpnp1R/3Q1R2/kNNq1P2/3Rn2b/bp1PB1qr/8 w - - 0 1 illegal: No proof kernel
qqbb4/2N2n2/pp4n1/R1Q5/P1rPNR1n/QQ2pB1K/qP2r3/kn2B2R w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 Qb3 gxh4 Qa4+ Qd7 Qd1 Qd8 g4 Kf7 a4 h5 f4 c5 Kf2 e5 Kg2 c4 d4 e3 g5 e4 f5 a6 d6 b6 d7 c3 f6 Ke6 f7 Kd5 g6 h3+ Kg3 e2 g7 Kc4 Qd3+ Kb3 Kh2 e1N Qf3 e3 Qe2 c2 Qf3 h4 Qc6 Ng2 Qf3 Nh6 g8Q Nc6 Bb5 Ne5 Bd3 Ng6 Qf6 Be7 f8Q+ Nf7 Bd2 c1N Qe5 Na2 Ba5 Nc3 Na3 Nb1 Qc5 Qe8 Nf3 Bd8 Ng5 Rh7 Kg1 h2+ Kf1 h3 Be2 Rb8 Bf3 N2h4 Be1 Rb7 Nb5 Rc7 Ne4 Qe5 Qce7 Rc4 Qc5 Qb8 Nc7 Rh5 Qfd6 Rg5 Qe7 Rg2 Qef8 Re2 Qa3+ Kc2 Qfc5 Bf6 d8R Kc1 Rg1 h1Q Rd5 Bd8 Rf5 Qa8 Rd5 Qh2 Rg4 Qe5 Rf4 h2 Qd6 Qb8 Ra5 Qb5 Qdc5 Qb3 Qe8 Kc2 Qeb5 Qa2 Qbb3+ Kc1 Bf2 Nf5 Kg2 Nfh4+ Kg3 h1Q Be1 Qa8 Rf5 Qh2+ Kg4 Qd6 Kh3 Qf4 Ne6 Qd6 Rf4 Qdb8 Qbb5 Kc2 Qbb4 Nd2 Bf2 Nf8 Rh1 Nfg6 Be1 Kb1 Qab3 Ka1 Q4a3 Nf5 Nc7 Nb1 Qcb5 Nfh4+ Qf5 Bb7 Qfc5 Bc8+
1n2KnqQ/B2P3r/Qp1Q3q/b2Npp2/6qk/R1N3rB/1Pr2P1N/Rb1q4 w - - 0 1 illegal: No proof kernel
q1bKNN2/1rq1R2P/1bqpp3/NRRn1k1q/B4B2/6r1/3PPp2/1n1r2QQ w - - 0 1 illegal: No possible last move, all moves rejected
n1B1b1NN/1r2b1pK/pQn3b1/1B1prR2/N1P4R/1Q1qB1kn/n2P2P1/7q w - - 0 1 illegal: No proof kernel
2r1qq2/2R1pBp1/kBKrp3/2nn3N/2PQN1Qb/N1b4Q/4P1P1/r2R1br1 w - - 0 1 illegal: Other
4rbb1/p1N1B1Q1/Pr1nQpBR/1P3nnn/3K3n/5Pp1/1R3n2/N2NB1kq w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g3 h5 g4 hxg4 Kd2 Ke7 Kc3 Ke6 b4 Kf5 h4 Ke4 a4 g5 e3 d5 h5 c5 b5 d4+ Kd2 c3+ Kc2 g3 h6 c4 e6 f6 e7 g2 e8N g4 h7 g3 a5 Qd5 a6 Nd7 Qh5 d3+ Kd1 d2 Ke2 d1N Nc7 c2 Na3 c3 Rh2 Nh6 Qg6+ Nf5 Rb1 Nb6 Bd2 Rb8 Rb2 Nc4 Nh3 Nd6 Qg7 Nh4 Be1 Be6 Rh1 Rg8 h8B Rb6 Rh2 Be7 Rh1 Re8 Rh2 Bf8 Rh1 Ke5 e4 Kd4 e5 Bg8 e6 Ne3 e7 Qh5+ f3 Qh6 Nf2 Qh7 Bd2 c1N+ Ke1 g1N Nd1 c2 Bd3 Nh3 Bg6 Nd3+ Ke2 Qh5 Be1 c1N+ Kd2 Ndf4 Nc2+ Kc4 Na1 Kd4 Rh2 Ng5 Rh3 Ncd3 Rh1 Rc8 e8Q Nf2 Qe6 Re8 Rh3 Qg4 Rh2 Qh3 Rh1 Qf1 Rh2 Qh1 Rh3 Nhf5 Rh6 Nh5 Ke2 Nh4 Kd2 Kc5 Kc3 Nef5 Rb3 Ng4 Rb2 Be7 Kb3 Kd4 Qf8 Kd3 Bg7 Nf2 Bf7 Ne3 Bg6+ Nde4 Qff7 Ba3 Bf8 Bb4 Rb1 Ke2 Qg7 Kf1 Rb2 Kg1 Bc5 Neg2 Kc4 Ne3+ Kd4 Ba3 Be7 Bd6 Bd8 Bf8 Be7 Nd6 Qb3 Nfh3 Qc4 Nf2 Qe6 Nef5+
BR5r/P1R1N3/1bNB1K2/n1r1p1Qp/3r1QRP/2knq1p1/1n4Pn/2r2b1B w - - 0 1 illegal: Other
5N1b/4B2r/1Br3RN/pQrbr1nk/bR1ppnb1/PN1PP3/2qQ4/2R2K2 w - - 0 3 legal: proof: f4 g5 g4 c5 b4 h6 bxc5 gxf4 g5 h5 Bh3 Rh7 Be6 Rh8 Bg4 hxg4 h4 e5 c4 f5 h5 Kf7 a3 b5 c6 a5 h6 Kg6 d3 d5 c5 d4 h7 g3 e3 f3 c7 b4 c6 b3 Kf1 g2+ Ke1 b2 Kf2 f4 Rh5 Bg7 Rh1 Nd7 Qc2 Ne7 Ne2 g1R Bd2 Nc5 Bb4 Ne6 Nd2 b1B Bc5 Nd5 Bb6 Ra6 Nb3 Rc1 Qd2 Bc2 Rg1 Kh5 g6 Ng5 Rb1 Bg4 c8Q Qc7 Qb8 Bd1 Rb2 Rc5 Kf1 f2 Rg3 Re8 h8B e4 Rg1 Re5 Rg2 Bf6 g7 Be6 g8N Bf7 Nbc1 Ba4 Rb4 Qc8 c7 Be6 Ba7 Rac6 Nh6 Bf7 Bg7 Be6 Bf8 Bh8 Rg1 Bf7 Bb6 Bg8 Kg2 f1R Nb3 Bf7 Be7 f3+ Kg3 f2 Kg2 Rfc1 Qb7 R1c4 Kf1 Nf4 Qa6 Bd5 Qb5 Qd7 c8R Qc7 Rg8 Qc8 Rg6 Rc7 Bd6 Rh7 Be7 Rc6 Nc5 Rc2 Ne6 R2c5 Nc1 Nfh3 Ke2 f1B+ Ke1 Qc7 Nf8 Be2 Nb3 Nf4 Kf2 Qc8 Rc1 Bg4 Kf1 Rd6 Qe8 Rdc6 Qd7 Qa6 Qb7 Qc4 Qa6 Qc3 Qb5 Qc2
7N/b1Rn1RbP/4rrbq/p1B1QB1k/BNr1p3/1n6/P1QpPN2/rK5b w - - 0 1 illegal: No possible last move, all moves rejected
1k6/R2Qpp1r/2n1PBp1/4q2b/BqQQ1BN1/N1K2nrr/2nn1PP1/4n2R w - - 0 1 legal: proof: c4 d5 b4 dxc4 h4 a5 h5 g6 h6 Bg7 hxg7 axb4 a4 Kd7 d4 b5 Kd2 c5 e4 Kc7 e5 h5 d5 h4 a5 h3 a6 h2 a7 b3 Na3 b4 Be2 b2 Bf1 b1N+ Kc2 b3+ Kb2 Nf6 g8Q Nh7 Qe8 Qd6 Bd2 c3+ Kc1 c2 Kb2 c1N Be1 c4 Nc2 Ng5 Qd2 Na3 Qe2 Nc6 Kc3 b2 Nf3 Bg4 e6 b1Q Ne5 Bh5 Ng4 Nf3 Bd2 Qg3 Bg5 Nd3 Bf6 Nde1 d6+ Kb7 d7 Rh7 Qe4 Qe5+ Qd4 Rc8 d8B Rb8 Nb4 Nac2 a8Q+ Kc8 Qa5 Rb7 Qd7+ Kb8 Qc5 Rb5 Rg1 h1R Ra7 Rh3 Rh1 Rb7 Be2 Rc7 Bd1 Rc8 Nd5 Rg3 Ba5 Rch8 Nc7 Qb6 Nb5 Qb7 Kb2 c3+ Kb3 Qb6 Qcc4 Qbc5 Na3 Qb4+ Ka2 Na1 Bb3 c2 Kb2 c1N Bd8 Nac2 Bb6 Qbd6 Ba4 Nb3 Kc3 Nbd2 Bc5 Qc7 Bd6 Qc5 Bf4 Q7e5 Bb3 Qb4+ Kb2 Rg7 Kc1 Rh6 Ba4 Rgh7 Ne3 Bg4 Kd1 Rhh3 Kc1 Qc5 Kb2 Qb5+ Kc3 Bh5 Ng4 Qb4+
RN1N3n/1q2pq1k/Q2K3B/2rp2B1/1pRP2n1/1BR1n1r1/1P2Pr2/3qQ1bn w - - 0 1 illegal: Other
qnQ5/3p3K/2pQbNpn/2b1br2/BBr1n3/P3p1PB/3Pr2N/RR2N2k w - - 0 1 illegal: No proof kernel
5r1n/1BRQ3q/Q2qp3/K1b1P1B1/Pb1pn3/rp1PRrk1/1RN2pN1/2Q4b w - - 0 1 illegal: No possible last move, all moves rejected
N1R3N1/2pQpB1k/b1P1P1p1/N2r1q1n/1KP3qn/6bq/QBrb1B1p/7R w - - 0 1 illegal: No proof kernel
1r3N2/N4B1K/2rp1q2/k2P2QB/pb1P3B/Pnnp1pn1/R3q1Q1/1b1b1R1Q w - - 0 1 illegal: No proof kernel
1q4k1/2Bp4/bR1Qp2b/Rq1Ppr2/1Nb1PNr1/2P2r2/nRNK3p/1BnQ4 w - - 0 1 illegal: No proof kernel
3b1q2/k5qb/2P1p2r/1K1NPnp1/1p2RQr1/2p5/NPR1B1r1/BQ1nBnR1 w - - 0 1 illegal: Other
1k1b4/1r2p1pn/K2p2b1/P3b1q1/1r1PBN1R/1p1qBQQ1/NP4r1/1nRQ1B2 w - - 0 1 illegal: No proof kernel forced: wxDB
2RBKr1r/3np1bn/p2Bb1N1/q4rQ1/P1Q1P3/6pq/2p2bPR/1RN2Bk1 w - - 1 3 illegal: No possible last move, all moves rejected
5R1n/qp5k/Q3Np2/Q1pr2qN/RbrnrP2/pb1BB3/PK1N3P/B3b3 w - - 0 1 illegal: No possible last move
1Qr5/3Nn1k1/1Pn2ppb/1qN2pPQ/3QpN2/3q1R2/1BRb1Pb1/rBK3r1 w - - 0 1 illegal: No proof kernel
K1R1qn2/Q3Np1q/b5B1/4nP1p/P3pB2/kNbR1rQB/4Pbp1/1R2nr2 w - - 0 1 illegal: No proof kernel
1k6/R3pr2/n1n5/1B2P2r/Kp1p2Pb/QqB1rqBb/2RP2pN/1nN1R2Q w - - 0 1 illegal: No proof kernel
rk3qbb/R4nN1/qqp1rN2/B4P2/1pPQB3/5n2/pP2QK1p/1Rr1N2B w - - 0 1 illegal: No proof kernel
qK5Q/1b2B2N/q1Q3p1/R1B1p2n/2P1BRp1/rb3pr1/2nNPbPN/r6k w - - 0 1 illegal: No possible last move
1B2b2q/bpNB1pq1/2Qn1p1R/BPQRPqQ1/1b6/r3rPp1/1K6/3N1k1n w - - 0 1 illegal: No proof kernel
5Bk1/1Qq2R2/1P1p3B/Np2rq1q/3P2B1/nQ2pN2/pPRnK1b1/2b1Q1br w - - 0 1 illegal: No proof kernel
5rN1/p4Qpr/1Q2KpRB/1R1n2rq/q3P3/b1q2Npb/P4nPR/3k2NB w - - 0 1 illegal: Other
3Q3R/QN2p1pb/1Bq3Qn/4NPKn/1r1p4/2N2B1q/p2PP2q/1Rr1knb1 w - - 0 1 illegal: No proof kernel forced: wxDB
R1q1N2b/p2pBr2/1QpR2B1/qN2BQ2/n2P2nq/2Kp2n1/PP5N/rb4k1 w - - 0 1 illegal: No possible last move
B1KbNk2/rrn1p1N1/1pp5/1P1QPp2/q3Q3/2P3rQ/R3nrb1/B1R2r1B w - - 1 3 illegal: No proof kernel
R1K3r1/p2pb1qr/3n4/1pBRN3/b2b1P1Q/1p3RQ1/PPbN1b2/n2kB2B w - - 0 1 illegal: No proof kernel
7R/2B1bbq1/2NN1p2/1R1Bp1rr/p1bnbn1Q/P4p1Q/1K3P1P/2r1BN1k w - - 0 1 illegal: No proof kernel
rqB1K2n/8/2nk4/1pp1N1P1/b2pp1QB/B1rP2r1/RP1RN3/NQr1b1n1 w - - 0 1 illegal: No proof kernel
k7/1b2rbnR/1pQnq2b/p3Bp1b/PNprn3/1P3QR1/1P3B1N/1B1R2K1 w - - 0 1 illegal: No proof kernel
1Q1q2N1/2R1rN2/2b2Bpq/1N2Q1Pn/P1qpB1pp/2n1RB2/2qP4/1kb1r2K w - - 0 1 illegal: No proof kernel
R1B1rbN1/8/p2N4/q1RK1n2/PQ1bp1bk/N1Bp2b1/1qrPPR1p/4n2Q w - - 2 3 legal: proof: g4 f5 b4 fxg4 h4 c5 bxc5 Qc7 h5 Qe5 Rh3 Qxh5 Rh1 Qh2 f4 Kf7 a4 Kf6 c4 g5 f5 h5 c6 b5 c7 d5 c5 e5 c6 e4 Na3 d4 Nc4 a6 Qb3 b4 Nf3 h4 Na5 h3 Rb1 g3 Nc4 g4 Na3 g2 Kf2 d3 Ke3 g3 Kd4 g1B+ Kd5 g2 Bb2+ Bd4 Ne5 Kg5 f6 g1B f7 Bgf2 Bc3 Kh4 Nd7 Bg3 Nf6 Nh6 Ng8 Bg4 c8N Nd7 c7 Ne5 Rc1 Nf3 Qb1 b3 Nd6 b2 c8R Nf5 Rg1 Rh7 Rg2 Ne1 Rf2 Rh6 Rc5 Re8 Rc8 Qg1 Ra8 h2 Bh3 Rg6 Qa1 b1Q Rc2 Qb2 Qc1 Bfg7 f8Q Rf6 Qe7 Bf8 Qb7 Rf7 Qb4 Rc7 Qb1 Nf3 Qf1 Ne1 Rc1 Qg2 Qh1 Qf3 Rc2 Qf4 Rc1 Qg5 Rc2 Qd8 Rc1 Bf3 Rc2 Bf6 Bd4 Nh6 Bf5 Bg4 Bc8 Nf5 Rc5 Rc6 Ra5 Rc2 Rc5 Qa5 Bc3 Bd4
8/k2pb1PB/r1pp1Np1/3n1B1K/bqPP3Q/2qN1r2/3r1Bn1/1RQrR2R w - - 0 1 illegal: No possible last move, all moves rejected
7K/2P1Np1q/nr1kr1Rn/Nppb1r1q/1b3PRr/p4Q2/PB2Q3/1QRB4 w - - 0 1 illegal: No possible last move
1n2Brkb/3pq3/4p1B1/b1pP1K2/7P/RbpNPN2/nQqrQ1b1/Q1R1B3 w - - 0 1 illegal: No possible last move, all moves rejected
1r6/1K2bNpq/p2r3Q/Q1P2q2/B4Rbp/P2p1R1n/1NnB2BP/b4Nkb w - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 f5 Be3 fxg4 Bh6 Be7 Bc1 Bf8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 c4 d5 f4 h5 a3 g3 c6 d3 c5 g2 e3 h4 f5 d2 c7 d4 f6 a6+ Kb6 Nc6 f7 Qd5 Qh5 d1B Qh7+ Qf5 Bd2 Be7 f8Q Bf3 Nh3 g1B Qd8 Nf6 Qh6 Ng4 Bg2 Nb4 Nf4 Rb8 Nd3 Nc2 Nb2 Nf2 Ra2 Bd7 c8N Nh3 Kc7 Bf2 Rf1 b5 Ra1 b4 Nd6+ Kd5 Ra2 b3 Nf7 Ke4 Ra1 Bc8 Kc6 Qh7 Qa5 Bg4 Ra2 Rbd8 Kb7 Rd6 Ra1 d3 Ra2 Bg3 Ra1 Be5 Rf2 Kd5 e4+ Kd4 Ra2 Bd1 Rf4 Bdf3 Be1 Ke3 Nd2 Bc3 Nf1+ Ke2 Bd2 Kf2 Ra1 Kg1 Re1 Rf8 Re3 Rh8 Kc7 Rf8 e5 Rb8 e6 Bd5 Ref3 Be5 Nc4 Ba1 Nb2 Bf6 Nd1 b2 e7 b1Q e8B Be7 Nb2 Qe1 Bc6 Qee4 Ba4 Qef5 Rg3 Ng5 Bh3+ Bg2 Rgf3 Bh1 Bg2 Rc8+ Kb7 Nh3 Ng5 Rcd8 Nf7 Rb8+
4K1nb/1p1BBR1R/1P1p2N1/1nbQ4/pQ3pR1/r2Nq1q1/P2P4/1nrk1n1N w - - 1 3 legal: proof: f4 g5 c4 e5 h4 gxh4 c5 exf4 c6 d6 Qa4 Bf5 Qd1 Bd7 cxd7+ Ke7 Kf2 Ke6 Kf3 Kd5 Kg4 Kd4 Kf5 h5 e4 a5 b4 c5 g4 h3 e5 h4 e6 h2 e7 h3 e8R f3 b5 f2 b6 c4 g5 c3 g6 c2 g7 Qe7 d8Q Nc6 Ne2+ Kd3 Bb2 c1B Bf6 Ba3 Nbc3 Na7 Qb3 Bc5 Qd5+ Kc2 Na4 Qe3 Re4 Nb5 Nb2 a4 Be7 Rc8 Bg2 f1N Nd3 f6 Kg6 f5 Kf7 f4 Qc7 Rh6 Ng3 Rg6 Rg1 h1N Re1 h2 Bh3 Rg5 Bd7 Nf2 Nh1 Nd1 Rg4 Ndc3 Re6 Qg3 Rh6 Nb1 Rh7 Re5 Qcc6 Re3 Qe4 Rf3 Qcd5 Re3 Re2 Kd1 Qb4 Rc7 Ke8 Rc6 Ne5 Ra3 Nd3 Rc7 Re5 Rc6 Rf5 Qe3 Ng3 h1Q Rf7 Qhg1 Nh1 Qg2 Be6 Qgg3 Bd7 Nh6 g8N Bg7 Nc1 Bb2 Nd3 Be5 Bd8 Rc7 Ne7 Ng8 Ng6 Bh8+ Be7 Bcd4 Rhg7 Rc1 Rh7 Bc5
3b1Rb1/2Q1p2K/Np1RqB1p/B2NP3/1Qp1rnBP/2q3qb/1qP3k1/n2R4 w - - 0 1 legal: proof: d4 c5 b4 f5 g4 fxg4 b5 c4 b6 axb6 Nh3 b5 Ng1 b4 Qd3 Ra5 Qd1 Rc5 dxc5 Qb6 Qd3 Qa5 Qd1 Qd8 Kd2 Kf7 Ke3 Kg6 Ke4 Kh5 Kf5 Kh4 f4 d5+ Ke5 g5 e4 g3 a4 b6 a5 d4 h3 g4 f5 g2 f6 Kg3 f7 b3 c6 d3 c7 d2 a6 b2 a7 Qd3 a8Q Na6 Qb8 Bh6 f8B Nf6 Nc3 b1Q Bg7 Nh5 Be2 Nc5 Na2 Nb3 Qf1 d1B Bd2 Qe3 Qf6 Qb2+ Bc3 Rf8 Qd6 Rf4 h4 Bg5 Qd2 h6 Bf6 Bd7 Rb1 Na1 Nh3 g1Q c8R Qe1 Nb4 Be6 Qbd6 Bf7 Na6 Qf3 Rf1 Kh2 Qd7 g3 Rf8 g2 Qb7 Rg4 Nf4 g1Q Kf5 Qgg3 Ba5 Qfb3 Qb4 Qb3c3 Bf3 Be2 Rg1 Bf1 Rg2+ Kh1 Rd2+ Kg1 Qb8 Bh3 Rbd1 Kf1 Rd7 Kg1 Nd5 Bf4 Rdd8 Bc7 Rd6 Bd8 Be2 Kg2 Qb7 Qed2 Qc7 Qdd4 e5 Qc5 Rc6 Re4+ Bg4 Qb5 Re6 Qe8 Rc6 Qd7+ Re6 Bg8 Kg6 Nf4+ Kg7 Bf7 Rd6 Qe6 Kh7 Bg8+
b5b1/nB1n1N1p/1P1p3P/2Rrp3/q3QbrK/BRpN3Q/1RPk1p1B/n7 w - - 0 1 illegal: No proof kernel
1n6/NpB2p1N/qPp1pP1P/pr1N1B2/2bk1b2/1Q1rnQ2/2nR1K1B/6Rb w - - 0 1 illegal: No proof kernel
Q1Q1Nk2/rn1b3r/R3p1pb/2r1Rp2/Pp1nn2B/3p1BP1/2qP1NQK/2R5 w - - 0 1 illegal: No proof kernel
1QB1bR1K/1p1N2qn/nP3p2/r4p2/4p1Q1/bkb2P1r/RPp4N/2q1Q1BR w - - 0 1 illegal: No proof kernel
3N2q1/6p1/br1R1p2/p1r2Q1P/1N2Q1Bb/P1RqQpB1/K1pn1Pb1/2nk1N2 w - - 0 1 illegal: No proof kernel
r3q2N/3KbnN1/1pBQ1pp1/Rq3Qp1/5Pb1/PB4Pp/RB3rQ1/1b2k1n1 w - - 0 1 illegal: No proof kernel
1R3N1N/p1K2Q1p/p2Q2p1/1RBb1Rn1/3pBBqP/3P2q1/1n3bPr/4nk1r w - - 1 3 legal: proof: b4 f5 e4 fxe4 a4 c5 bxc5 Nc6 a5 Nb8 a6 bxa6 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 Kf4 h4 e5 c4 g6 c6 e3 c5 e4 c7 e2 c6 e1Q Nc3 e3 Nh3+ Kf5 f4 e2 Na4 Kg4 f5 Kg3 f6 d6 f7 Qd7 Nc5 Bb7 c8R Nh6 Rb1 Qg4 Ne6 Nd7 Nhg5 Kf2 Rb5 Ne5 Rb8 Nd3 Rg1 Be7 f8B Nb2 Nf7 Bg5 Be7 Rc8 Nh8 Nf7 Nf8 Be3 Qb3 Ng5 d3 Bc5 Bf4 Rc7 Rh1 Bd4 Rh3 Kg1 Rf3 Qeg3 Qb4 e1N Be2 Be3 Rf2 Rc8 Bf3 Rc7 Be4 Rc8 Rf3 Bf2 Qd4 Kf1 Qf6 Rc7 Qf7 Rc8 Be5 Re8 Rf5 Rc8 Bf4 Rc7 Re8 Rac8 Rd8 Ba8 Re8 Rb7 c7 Rcb8 Kc6 d5 c8Q d4 Kd6 Rb6+ Kc7 Bd5 Qd8 Rc8+ Kd7 Rc1 Bc5 Rf6 Kc7 Re6 Bf3 Re3 Be4 Nef3 Qff6 Q3h3 Qe5 Ke2 Qee7 Rh1 Qf7 Ne1 Rb4 Kf1 Qd6 Qh2 Rb6 Rh3 Reb8 Qhg3 Rb5 R3h2
1RNq2b1/1pp2B2/2pn4/rPRQ2qp/3p1BP1/1K2b2P/1R1r1Qn1/3bNN1k w - - 0 1 illegal: No proof kernel
4Kr2/np3pb1/5P2/BB1pR2N/1PQ1p1rb/n2q1q1p/Qb3RNP/2Q1B1k1 w - - 2 3 illegal: No possible last move, all moves rejected
q2b4/p1R4p/2ppN1kn/P2NP1n1/2pQK1Q1/1R5r/R1P3rq/2r1BBBb w - - 0 1 illegal: No possible last move, all moves rejected
n4BNr/PK2b1p1/1p1rN2p/3R3R/1B1pp1nQ/2qqP2Q/2k1bR1P/6qB w - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 f5 gxf5 a5 Bg2 axb4 Bh3 Ra3 Bf1 Ra8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 f4 e5 c4 d5 a4 d3 e3 b6 c5 b3 c6 d2 a5 h6 c7 b2 a6 Qe7 a7 Na6 Kc6 Qb4 f6 Bh3 c8Q Bd7+ Kb7 Be6 f5 Nc7 f7 Qa3 f6 Qe7 Bg2+ Kd3 Qe1 d1Q Nd2 b1Q Ne2 Qbb4 Ba3 Qa5 Qh4 Kc2 Ne4 Qc3 Nd4+ Kd3 Bb4 Qd6 Ra5 Bg4 Ne6 Be7 f8R Kc2 f7 Be2 Nf6 e4 Rf1 d4 Rff5 Qdd3 Rh5 Qg3 Bh1 Qg1 Qd7 Rd8 Rad5 Bc5 Qc8 Rd6 Qd7 Na8 Qc8 Ne7 Ng8 Ng6 Qh3 Qge1 Qd8 Ne5 Qdh4 Qf2 Re8 Ng4 f8B Qg2 Re7 Qg1 Rf7 Rc6 Rf4 Be7 Rf2 Rd6
B3Q3/R1BN1R1K/p3pR2/n1p1Ppn1/kB3r1N/p1qr1P2/2P2bq1/1rb1Q3 w - - 1 3 legal: proof: d4 c5 g4 h5 a4 hxg4 d5 b5 Bg5 Bb7 Bc1 Bc6 dxc6 bxa4 Kd2 f5 Ke3 d5 Kf4 d4 Kg5 d3 Kg6 a3 h4 d2 b4 g3 e4 g2 h5 Qd5 c7 Kd7 c8R Kd6 b5 Qe5 b6 Nf6 h6 Nh7 b7 Nc6 Nc3 Ng5 h7 Rb8 Na4 Na5 Qe1 d1R Rc7 Qc3 Nb6 Rd3 Nf3 g1Q Nd7 Qg2 e5+ Kd5 Rh3 Kc4 Nh4 Kb5 Bd2 Ka4 Rc6 Rg8 Rf6 Rh8 f3 Rg8 h8Q e6 Rb1 a6 Be2 Ne4+ Kh7 g5 Rh2 g4 Rb3 Qc4 Bb4 Bh6 Rf7 Rg5 Qe8 g3 Rb1 Qc3 Rf6 Rd5 Bc4 Rd3 Bd5 Rg4 Rb2 Rf4 Rh1 Rc8 b8B Rd8 Bc7 Rb8 Ba8 Ng5+ Kg8 Qh2 Kh8 g2 Rf7 g1B Rf6 Ne4 Kh7 Bf2 Rg1 Rb7 Rg7 Qg2 Rgf7 Qb3 Bd2 Qc3 Rb1 Rb8 Rb7 Bg5 Ra7 Rb1 Qf1 Rg4 Be1 Bc1 Bd2 Rf4 Qe1 Qb3 Bb4 Qc3 Kh8 Ng5 Kg8 Ne4+ Kh7 Ng5+
K2k3n/1p3bb1/q3ppB1/NP2b1Br/4R2p/4RP1n/QPq2rp1/N1R1QB2 w - - 0 1 illegal: No proof kernel
1b6/RpB1n2Q/B2R1Npp/p2pQ3/3RbP1k/Q1r1n2P/1q4Pn/r1q3NK w - - 0 1 illegal: No proof kernel
Br5Q/pNpqn1B1/Q2Rp3/1p1bn2R/Pk4rB/b4N1p/qP2P3/R1q3K1 w - - 1 3 illegal: No possible last move
3bR3/q3QbNp/3P1p1R/QK3PpP/2b3R1/1p1n1B1p/nB1Q2b1/2N1rrk1 w - - 0 1 illegal: Other
2bb1r2/1kn5/2p1p1QP/2pQ2r1/p1KRP1N1/2Bbb1np/B4R1P/2R1qN1B w - - 0 1 illegal: No proof kernel
N3qnB1/1R2Q3/1bQ1R2p/1p2r3/1P2pk2/KNB1Nnbp/n3P1pP/3n1rR1 w - - 2 3 illegal: No proof kernel
b2Bk1qn/K2p2b1/Q1pP3p/3r1Bp1/3RpB2/N2r1P1Q/r1r2n1P/2RN1N2 w - - 0 1 illegal: No proof kernel
Nr2BQ2/p1pr1Q2/2k1p1n1/B3n1Rr/N4KR1/PqP1P1p1/2b2p2/2QrR2b w - - 1 3 illegal: No proof kernel
knBn4/1N2RppB/3B3n/4pq1r/3p1PPb/rq2PKQ1/1p2RR1Q/1N4q1 w - - 0 1 illegal: No proof kernel
5Q2/1nBpb1QB/R3p1b1/p2br3/1NQPPK2/1ppR1r1q/2P1k3/N2bN1r1 w - - 0 1 illegal: No proof kernel
N6q/r3Q1N1/1bRB1p1r/1Nb1R1pQ/B2nbPPp/3pp3/1k2p1P1/3B2Kn w - - 0 1 illegal: No proof kernel
2K2b2/1pn1p1pb/2ppn2R/1Q2P3/2r1B2R/k1P1nNB1/1pQNr2P/1q4QB w - - 0 1 illegal: No proof kernel
2rQq3/NqBpp3/2pK1b2/N1P3r1/n7/Rp4pR/QBpPn1PQ/Rb1k4 w - - 0 3 illegal: Other
2RBQ1r1/1Nb4P/p7/Kb6/2pk1bR1/1P2R1n1/2b1Pb1b/1qBNR1R1 w - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 b5 axb5 e5 b6 h5 g4 f5 Bg2 a6 Bf3 Ra7 bxa7 Nc6 fxe5 f4 Qb3 Nd4 Qd1 Nf5 gxf5 Bb7 Bg4 hxg4 Ra4 Bc8 Ra2 Nh6 Ra1 Ng8 a8R Kd7 d4 Kc6 Kd2 Kd5 Kc3 c5 h4 g5 e6 f3 e7 g3 e8R g2 f6 g4 f7 g3 b3 f2 h5 f1B h6 Bd6 f8R Ne7 h7 Bd7 Na3 Nf5 Nh3 g1B Re3 g2 Rg8 Bgh2 Rg4 g1B Nf2 Ng3 Nb5 Rg8 Rc8 Bc7 Nd6 Bg2 Nb7 Bb5 Qc2 Qd6 Qg6 Be4 Qe8 Qg6 Nd1 Bf2 Re1 Bc2 Qd8+ Kc6 d5+ Kb6 d6 Qf5 Kb2 c3+ Ka3 c4 Kb4 Kc6 d7 Kd5 Qe7 Qe4 d8B Kd4 Qg5 Bd3 Qe7 c2 Ba3 c1B Qe8 Bc2 Rg1 Bf4 Ka5 Bb2 Rb1 Ba1 Bc1 Bb2 Nc3 Ba3 Re1 Bad6 Nd1 Bc7+ Kb4 Nf1 Bb2+ Kd5 Nc3+ Kd4 Red1+ Nd2 Rdg1 Nf1 Re1 Bb1 Bc1 Ng3 Nd1 Qc2 Rc3 Qb2 Rf3 Bc2 Re3 Bd6+ Ka5 Qb1 Rc5 Be5 Rc8 Bc7+
2n3R1/b2q3P/3q1B1r/1B1p2N1/r4bnk/NKN1PP2/2nQNR2/q1r2N2 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Kd2 c5 Ke1 cxd4 Kd2 f5 Ke1 f4 Ra3 e4 Ra1 e3 fxe3 Rh7 Qd3 Rh6 Qd1 Rh8 Nc3 f3 Nb1 f2+ Kd2 Ba6 Bg2 Bb7 Bf1 Bf3 exf3 Rh4 Nc3 Rh3 Nb1 Rh8 c4 Kf7 Kc2 Kf6 h4 a5 b4 g5 c5 d5 h5 a4 h6 g3 b6 g2 h7 g4 b7 Kg5 c6 a3 b5 d3+ Kb3 g3 c7 d2 c8N a2 b6 Ra4 Bb2 Nf6 Nc3 Nc6 b8N Qd7 b7 Ng4 Nh3+ Kh4 Nb6 g1B Rh2 g2 Bb5 f1Q Nc4 Ne7 Na6 Rg8 b8N Rg6 Nc7 Nc8 Nc6 Rh6 Nd4 Bc5 Nde2 Ba7 Qc1 d1R Nd2 Qe1 Nf1 Qg3 Qd2 Rc1 Rb1 Bf2 Ra1 g1Q Ng5+ Qh3 Rg2 Bg3 Rf2 Bf4 Nh2 Rb1 Na8 Qe6 Nf7 Qb6 Ne4 Qd6 Nb6 Ne5 Nc4 Qgf1 Na3 Rd1 Bd4 Qhd7 N4c3 Qg2 Rb1 Rh1 Rg1 Qf1 Rg6 Ng4 Ng5 Qg1 Bf6 a1N+ Ka2 Qf1 Rg8 Nc2 Kb2 Qa1+ Kb3 Rd1 Nf1 Rc1
8/Rrnq2Pb/1bNBQ3/1R1B4/1rB1qB1r/p1Kn4/r1PP1b1B/1k3N2 w - - 0 1 legal: proof: e4 d5 h4 c5 b4 b5 bxc5 g5 a4 gxh4 axb5 f5 exf5 Qd6 Qe2 Qd8 Qe4 dxe4 g4 Kd7 f4 e5 f6 a5 g5 h5 f7 a4 b6 Kc6 g6 e3 g7 h3 b7 e4 f5 h2 f6 h4 Na3 e2 Bb2 h3 Rb1 Bf5 Ra1 Ne7 Rb1 Ng6 Nb5 Rh4 Ra1 Nf4 Be5 Na6 b8B Qd7 Nf3 Nc7 Nbd4+ Kd5 c6 Kc4 Ra3 Bc5 f8B Bh7 f7 Kb4 Bfd6 Ra6 Rg1 h1Q f8Q h2 Qf6 Qg2 Qg6 h1R Qe6 Qg6 Kf2 e1B+ Ke3 Nd3 Nh2 Bf2+ Ke2 e3 Rg5 Rb6 Bf4 Qe4 Bg2 Rb7 Nf1 Rg4 Ra2 Rhh4 Rf5 Qe5 Bd5 Qe4 Bh2 Rf4 Bc4 Rfg4 Bdf4 Bb6 Rc5 Nd5 Bbd6 Nc7 Ra5+ Nc5 Rb2+ Ka3 Rb4 Nd3 Ra7 Rh5 Rb3+ Ka2 Rb5+ Ka1 Bd5 a3 Bc4 Nd5 c7 Rhh4 c8B Nc7 Rba5 Kb1 Nc6 Rh5 Rd5 Rgh4 Rda5 Rb5 Bd5 Rb4 Rc5 Rb8 Ba6 Rb7 Bac4 Qd4 Kf3 e2 Rca5 e1R Rb5 Rd1 Ke2 Qe4+ Ne3 Ne5 Bb3 Kb2 Ba2 Ra1 Bac4 Qg6 Nf1 Kb1 Bh6 Qg2 Be3 Ra2 Bef4 Ng6 Kd3 Ne5+ Kc3 Nd3 Qh3 Qh1 Qe6 Qe4
4b3/3qP1RP/N1n3p1/1rB2n2/2PRnN1p/1BkrbB2/B3Qq1B/2K2q2 w - - 0 1 illegal: No possible last move
bK2r3/1NP4R/1q3RNR/2ppQ3/4qqrn/n7/P1BP1kb1/1B3rRR w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 b5 Nh6 Ba3 Ng8 Bc5 Nh6 Bb4 Ng8 c4 axb4 c5 b6 cxb6 c6 b7 Bh6 b6 Bf4 Nh3 Bd6 Ng1 Bc7 bxc7 Kf7 Qa4 Kf8 Qd1 Ke8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 g4 d5 f3 b3 f6 b2 f7 c5 f8R h3 f4+ Kh4 g5 Kg3 g6 h2 f5 h4 g7 h3 f6 Nd7+ Ke6 Kf2 b8R Nh6 g8B Nf5 f7 Nh4 Ne2 Ra4 Na3 b1Q Rb6 Bb7 Nc4 Ba8 Bh7 Ne5 Na5 Rg4 Bc2 Nc4 Nb7 Na3 Nf4 Qb5 Rg8 Qf8 Bfd3 Qa5 Kd7 e5 Rg1 h1B Ng6 h2 Rg7 e4 Rh7 e3 Kc6 Qh6 f8R+ Qf4 Rf6 e2 Qc1 e1Q Qb2 Qb4 Qe5 Re8 Bb1 Bf3 Bdc2 h1R Kd7 Bg2 Rbe6 Re7+ Kc8 Qee4 Kb8 Qb6 Nf8 Bf3 Rfh6 Bg2 Ng6 Rh3 Rh1 Re3 Rf6 Re1 Bd3 Rf7 Bbc2 Re2 Rag1 Re1 Bb1 Re7 Bdc2 Rf1 Qa1 Re6 Qe5 Re8+
3Nr1B1/3n4/p3P3/NrPpN3/1kq2P2/3bQrN1/Kb2b3/RRnN2rB w - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 hxg5 f5 gxf5 c5 a4 b5 axb5 c4 Bd2 c3 Bg2 cxd2+ Kf1 Bb7 Bh3 Ba6 Kg2 Kf7 Kf3 Bc8 Bf1 Ke7 Kg2 Ke8 Kf3 h5 Ke4 Ke7 Kd3 Kd6 Kc4 d3 Kb3 Kc5 c4 d5 f4 h4 e4 a6 e5 h3 f6 h2 b6 Rh3 g6 Be6 f7 Re3 b7 Re2 g7 Ra7 Bg2 Qa5 Qc1 d1R Nc3 Qb4+ Ka2 Rdd2 Nd1 Nf6 g8B Bg7 f8N Ne4 Ng6 Nd7 b8N Rb7 Nc6 Rb5 Nd8 Bf5 Qc3 Rf2 Ne2 Rf3 Ng3 Re2 Re1 d2 Bh1 Bf6 Qd3 Qc3 Qe3+ Kb4 c5 Qc4+ b3 Bh8 Rg1 Re1 e6 Bb2 Ne5 Ref1 Nf2 d1B Rb1 Be2 Nd1 Nd2 Ra1 Bfd3 Rb1 Qe4 Ra1 Ka5 b4+ Ka4 Rb1 Nb3 Ra1 Qc4 Rb1 Rb8 b5 Kb4 b6 Rc8 b7 Ra8 Ndf7 Re8 b8N R1f2 Nd8 Rg2 Rf1 Rg1 Bg2 h1R Nbc6+ Kb5 Na5 Kb4 Ra1 Rh7 Bh1 Rhe7 Ndf7 Rb8 Nd8 Re8 Nc3 Rb7 Rfb1 Rb5 Nd1 Nc1+
1B1b2rn/1R2b2p/1B1qRb2/n4N1P/k2P1rrK/1b4N1/N2Q1p1P/2N3N1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 g4 Qh5 gxh5 Bf5 Ra5 Bd7 Ra1 Bc8 Kf2 Kd7 e4 f5 b4 a5 e5 g5 b6 c5 b7 c4 b5 g4 d3 a4 b6 g3+ Kf3 g2 d6 Kc6 d7 Kb5 d8N a3 e6 a2 e7 c3 e8N c2 Nd6+ Ka4 N8f7 Ne7 Ne5 Be6 Nd2 Rg8 Qe2 Bb3 N2e4 Ra5 Qd2 Nbc6 b8N Ng6 b7 Nh8 Be2 Be7 Rb1 a1B Na6 Bb2 Kf2 f3 b8B f4 Nb4 Rd5 Nf5 Na5 Na2 Rd4 Nh3 g1R Neg3 Bc3 Ba3 c1B Bc5 Ba3 Bca7 Bd8 Bb6 Bae7 Bd1 Bcb4 Be2 Bf6 Rb2 Re4 d4 Bbe7 Nd3 Rg5 Ndc1 Rg2+ Kf1 f2 Bg4 Rg8 Ng1 Rg5 Qe3 Rg8 Ke2 Rg5 Kf3 f1Q+ Qf2 Qa6 Qd2 Rg8 Ng1e2 Rg5 Re1 Rg1 Kf2 f3 Rb1 Rf4 Rb2 Rh1 Ng1 Rg8 Re6 Rg5 B6c7 Qd6 Bb6 Rg8 Ne4 Rg5 Kg3 f2 Kh3 Rg8 Neg3 Rg5 Rc2 Rg8 Rc7 Rg5 Rb7 Rg8 Nf3 Re1 Ng1 Re5 Nh6 Reg5 Nhf5 Qa3 Kh4 Qb4 Ng1e2 Qd6 Ng1 Rgxg4+
rr1R1N2/1B1n2B1/3rrn2/P4R1B/2K4k/1Q1p3n/Nb2PPqp/3B1B1r w - - 0 1 legal: proof: d4 a5 b4 axb4 g4 f5 gxf5 c5 Bh6 cxd4 Bc1 e6 fxe6 g5 h3 g4 Qd3 g3 Qa6 b6 Qd3 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Bd6 Rh3 Bc5 Rh1 Bf8 Kd2 Ke7 Kd3 Kf6 a4 h5 c4 d5 c5 h4 c6 b3 a5 h3 c7 h2 c8B g2 e7 b2 e8B b5 Qa4 b4 Qc2 b3 Bb7 Ba3 Nf3 g1N Bh5 Rh6 Nh4 Nd7 Ng6 Nh3 Nc3 b1R Rg1 b2 g5+ Kf5 Ra2 Ngf6 Qb3 Qg8 Nf8 Ra1 g6 b1R g7 Bb2 Rg4 Rg6 Rf4+ Kg5 Rf5+ Kh4 Bf4 Rh6 Be5 Rg6 Kd2 d3 Ra3 d4 Na2 Qd5 g8B Qg2 Be6 Ng8 Bed5 Re6 Bg7 Ngf6 Be4 Rc1 Ra4 Rab1 Rc4 Re1 Rc8 Rec1 Re8 Rcc8 Bec6 Rcb8 Rd8 Rc1 Bb5 Rcc6 Ba4 Rcd6 Kd1 d2 Kc2 Nb6 Kd3 Nbd7 Kc4 d1R Qb6 Re1 Bd1 d3 Qb3 Qf3 Bg2 Rh1 Bf1 Qg2
2n1nB1R/8/2B2nnq/p5B1/1PNPPbkb/nBN1Qr2/2b1B2p/R1K5 w - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 e5 axb5 exf4 Qa4 a5 Qd1 Ra6 bxa6 Qf6 Ra2 Qd6 Ra1 Qd8 g4 Ke7 b4 Kf6 d4 Kg5 Kd2 h5 d6 f5 e3 c5 a7 f3 a8B f2 d7 f4 Rh2 c4 Qe2 h3 Qf3 c3+ Kc2 h4 Ra4 Qf6 d8B Be7 Ba3 Nd7 Qg3 f3 Bb6 Ne5 Qg2 Qh6 Be4 Bf5 Bd8 Nf6 Be2 f1N Qg3 f2 Bc4 Nd2 Be2 f1N Qf3 Rf8 B2d3 Ndc4 Kd1 c2+ Kc1 Ne8 Nd2 Ng3 Ne2 Ng6 Bc6 Ne4 Nc3 Ne4d6 Be2 Nc8 Bb2 Rf6 Ra1 Na3 Nc4 Bd3 Qf2 Rf3 e4 Kf4 g5 Kg4 Rh1 h2 Qe3 h3 Bc7 Bd8 Bd6 Bf6 Bf8 Be7 Rd1 h1N Rg1+ Ng3 Rh1 Nh5 Rh2 Ngf4 g6 Bh4 g7 Ng6 g8B Nhf6 Nd2 Ba6 Bb3 Bb5 Nc4 Ba4 Kd2 c1B+ Kd1 Bd2 Bc1 Bde1 Bd2 Beg3 Kc1 Bb8 Qf2 Bd6 Bg5 Bc7 Qe3 Bf4 Rg2+ Kh5 Rg3 h2 Rh3 Kg4 Ba2 Bc2 Bb3 Bf2 Rh5 Qh8 Rh6 Bh4 Rh7 Qg7 Rh8 Qh6
bB1NBnB1/3nr1q1/n2r4/n2R2p1/2n1BQPR/3Pnp2/P2Bk3/K6N w - - 0 1 legal: proof: f4 e5 b4 exf4 b5 d5 b6 d4 Nh3 d3 cxd3 axb6 Ng1 b5 Qc2 b4 Qb3 c5 Qd1 c4 Nf3 c3 Ng5 c2 Nxh7 Bc5 Ba3 Bd4 Bc1 Bc3 dxc3 Qd7 Ng5 Qe7 Nh7 Qd8 Kd2 Kd7 h4 Kc6 g4 Kd5 e3 f5 h5 g5 h6 b5 Rg1 b3 Rh1 b2 Rh4 b4 Bg2+ f3 Qf1 b3 Nf8 f4 h7 Ra6 Ne6 Qf8 Nd8 Nf6 c4+ Ke5 Kc3 f2 e4 Qg7 c5 Re8 h8B Nbd7 c6 Nh7 c7 Bb7 c8B Nhf8 Be3 c1N Nd2 b1N+ Kb2 Na3 Rb1 Nb5 Ka1 Rd6 Ba7 Bd5 Bb8 Kd4 e5 Ke3 Ne4 Re7 Ng3 Nc7 Nh1 Ba8 Be4 Na6 Bcb7 Kd2 Bbd5 f3 Bg8 Ke3 Qd1 f1N Qd2+ Kd4 e6 Ne3 Qh2 Kc3 Qe5+ Kd2 Rb2+ Kd1 Rc2 Ke1 Rc5 Ke2 Rd5 b2+ Kb1 Qh7 Qf4 Nb3 Bc3 Na5 Bb4 Qg7 Bd2 Nec4 Kc2 b1N Kc1 Re8 e7 Nc3 Kc2 Nd1 Kb1 Qg6 Ka1 Nde3 Nf7 Rd8 e8B Qg7+ Qf6 Rc8 Nd8 Rc7 Qd4 Ndc5 Qe5 Re7 Qd4 Ncd7 Qf6 Qh7 Qf4 Qg7+
q2N1k1b/1r4p1/3K1Np1/2n1bR1N/1PBN2Bn/R3P2b/2p1rP2/1Q3qN1 w - - 0 1 illegal: Other
q5N1/2p2pkP/nnQ1B2N/b1r1N2K/P2p4/1n3bN1/BR3q1P/2N1rR2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 g5 f4 e5 fxg5 Ra6 d6 Qd7 d5 Ra8 Be3 Qd8 Bd4 exd4 Kf2 b5 Kg3 b3 Kh4 b2 a4 b4 e4 b3 d7+ Ke7 d6+ Ke6 h6 Rh7 e5 Qf6 d8N+ Kf5 e6 Kg6 e7 Nc6 e8B Ra7 d7 Rg7 h7 Nce7 Bc4 Qe6 Qf3 Qa6 Ne6 Nd5 d8N Nb4 Nc3 b1N Ne4 b2 Ne2 Bb7 Ba2 Ne7 Bd7 Ned5 N4g3 Nb6 Nc1 Nd2 Rf1 b1Q Qc6 Qb2 Rb1 Nb3 Bc8 Qc2 Rb2 Qf2 Bd7 Rg8 Ng7+ Bd6 Bc8 Re8 Nf5 Re1 Nh6 Kg7 g6 Bf4 Bh3 Bd2 Be6 Qa5 Kg4 Na6 Kh4 Qd5 Kg4 Qdg2 Kh4 Ba5 Kh5 Kf6 g7 Ra8 g8N+ Kg7 Qc3 Bd5 Nc6 Bf3+ Kg5 Rd8 Ne5 Rd5 Qc4 Rc5 Qc2 Bc6 Kh5 Qd5 Qc4 Qd8 Qd5 Qa8 Qd6 Bh1 Qc6 Bf3+
2N1R3/P5k1/2K2RP1/B1Pp1n2/qRr1b1R1/4r1rp/p1NR4/1Bb2bqQ w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 axb5 cxd4 Qd2 a4 Qd3 Nc6 Qd1 Na5 bxa5 Bh6 Bb2 Bg7 Bc1 Bf8 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 e4 g4 d6 c4 a3 f4 h3 b6 d3 f6 d2 c5 h4 b7 e3 b8R e2 f5 e1R g5 a2 g6+ Ke8 a6 h2 f7+ Ke7 a7 Kf6 Ne2 h3 Rb4 Bd7 Nbc3 Rh4 Rg1 h1B+ Ne4+ Kg7 f6+ Kh8 Nd4 Rb8 Nc2 Bb5 Rg4 Qe8 Bd3 Bh6 f8R Re3 f7 Kg7 Qg1 d1Q Bd2 Bg2 Qh1 Qg1 Rd1 Ba6 Be1 Qa4 Rd2 Rb5 Kc6 d5 Nd6 Be4 Re8 Ne7+ Kd7 Bf4 f8R Nf5 Kc6 Bh6 Rf6 Rg3 Rf2 Bc1 Nc8 Re3 Bc3 Rg3 Rd2 Re3 Rb1 Rg3 Ba5 Rb3+ Bb5 Rbe3 Rb4 Qb3 Bd3 Bc4 Ne1 Qd1 Bb1 Bf1 Rg5 Qb3 Nc2 Rf4 Rg4 Qa4+ Kb6 Bf3 Kc7 Rc4 Kb7 Be4 Kb6 Qa3 Kc6 Qa4+
3Q2q1/3RKPBn/r1P1q3/1q2b2N/N1B3p1/P6p/2b3pq/BR2BBnk w - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 e4 f5 exd5 fxg4 Na3 b5 Nc4 g5 Nd6+ Kd7 Ne8 g3 Nxc7 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Ba6 Bb2 Bb7 Bc1 Bc8 Ke2 Kd6 Kd3 Ke5 c4 Kf4 Kd4 h5 Kc5 e5+ d6 e4 d4+ e3 d5 h4 g6 g2 g7 b3 a3 h3 Bd2 b4 Nb5 b2 Ne2+ Kf3 Be1 b1Q Nbc3 b3 Na4 b2 Ng3+ e2 Nh5 Nh6 g8B Bg7 d7 Nf7 d6 Rh6 Qd4 Qf8 d8B Ne5 Bf6 Bf5 Qd1 Qe4 Rb1 Qf4 Qd2 Qe8 d7 Bc2 Kd6 Qh2 d8B Nbd7 c5 Nf8 Bc4 Nh7 Qg5 Qg8 Ke7 Bh8 Bg7 Ra6 Rd1 b1Q c6 Qb5 Rd7 Bd1 Bda5 Bc2 Bec3 e1Q Ba1 Qe4 Be1 Qg6 Qd2 Qh6 Qa5 Qe3 Qd8 Qeb3 Nf6 Kf4 Rg1 Nf3 Rh1 Ng1 Nh5+ Ke4 f4 Ke3 f5 Kf3 Bb4 Kf2 f6 Qa2 f7 Qb3 Bf8 Be5 Be1+ Kf3 Bb4 Ne2 Bd3 Bd1 Bg7 Bc2 Rg1 Q3d5 Bc4 Kf2 Ba5 Nd4 Bfd3 Ne2 Bb3 Qdc4 Rb1 Qcd5 Be1+ Kg1 Ba2 Kh1 Bac4 Ng1 Bf1 Qe6+
bkb4q/pb3N1P/2P2KRB/3b1N2/nN1R2rp/2q5/3p2PN/1N2Q1nB w - - 0 1 illegal: Other
3R2Bb/P2r1p1r/1pRnrBk1/1Rq4N/bp1Rb2P/4p3/1P4K1/2QR1N2 w - - 0 1 legal: proof: d4 d5 e4 h5 exd5 a5 g4 g5 gxh5 Be6 f4 gxf4 c4 Bh3 d6 Nd7 c5 Nb6 Qd2 Kd7 Qb4 Ke6 d5+ Kf6 c6 axb4 Na3 Bc8 Nb1 Nd7 cxd7 Rh7 Bb5 Rh6 Bf1 Rh8 Kf2 e5 h4 c5 a4 e4 h6 c4 h7 b6 a5 c3 a6 f3 a7 c2 Nd2 Nh6 Nh3 Kf5 Ra5 Rg8 h8R Be7 Nf4 Rg3 Bd3 Rg7 Rd1 Bf6 Nh5 Rh7 Nf1 Qf8 d8Q Kg6 d7 Bb7 d6 Nf5 Bg5 c1R Qc7 Rd8 Rb5 e3+ Kg1 Be5 Bf6 Be4 Kh1 Re8 d8R Re6 d7 Qc5 Rc8 Ra1 d8R Nd6 Rd7 Bd4 Rhd8 f2+ Kh2 Ra3 Bb1 Rd3 Kg3 Qf5 Qc1 Qc5 Rc6 Rd2 Bg5 Bh8 Bf6 Ne8 Rd4 Nd6 Nh2 f1B Bc2 Bg2 Nf1 Kh6 Bb1 Bc2 Kh2 Ba4 Bg6 Be4+ Kh3 Rg7 Bh7 Rd3 Bg8 Rh7 Rc4 Rd5 Rcd4 Kg6 Kh2 Nb7 Kg3 Rd7 Kh3 Nd6 Kg3 Bb1 Kg2 Be4+
4BkBB/2B2p2/2n3p1/RB1Q3n/prNppP2/rP4Pq/1Rn1K2n/3N4 w - - 0 1 legal: proof: h4 c5 h5 c4 h6 b5 Rh4 b4 Rh1 b3 axb3 c3 Rh3 cxb2 Rh4 Ba6 Rh1 Bc8 e4 d5 Ke2 g6 Kf3 Bg7 hxg7 Bb7 Nc3 Qa5 Nb1 d4 d3 Bd5 exd5 Qc3 Bh6 Qxd3+ Be3 Qd2 Bg5 Qe1 Bc1 Qd2 c4 e5 c5 h5 g3 a5 c6 h4 d6 h3 d7+ Ke7 d8B+ Ke8 c7 h2 c8B Qh6 Nd2 b1N Nc4 e4+ Ke2 Qh4 Bf4 Nh6 g8B Ng4 Nh3 Nf6 Bdc7 Nc6 Bd7+ Kf8 Bfe5 Nh5 f4 Na3 Be8 Nc2 Nf2 Qh3 Rg1 h1N Rg2 Ra7 Qd2 Ra8 Nd1 Nf2 Ra4 Ng4 Bf6 Rh7 Bh8 Nh2 Qd3 Ra7 Qf3 Rb7 Qg4 Rb4 Qg5 Nf6 Qf5 Rh5 Qe6 Rhb5 Ra2 Ra4 Qd5 Ra3 Rb2 Rb4 Rf2 Nhg4 Rh2 a4 Rh1 Qh7 Rh5 Nh2 Qc5+ Ne7 Nb6 Ne1 Kd2 Nd3 Qc4 Qh6 Ra5 Ne1 Qd5 Nc6 Bb5 Qh3 Nc4 Nc2 Ke2 Nh5
qkBNB1n1/1P4N1/8/1QBq2Rn/1b4Pr/1rP4n/bnBn2bq/3KR1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 g4 f5 e4 d5 b4 Kd7 g6 Kc7 c3 h5 e5 a5 e6 a4 g7 h4 e7 h3 e8B h2 Ke2 f3+ Ke1 f4 Ra2 d3 Bh5 d4 Rb2 a3 Be3 a2 Qb3 a1Q Ne2 d2+ Kd1 f2 Ng3 f3 Nf5 Ra3 Be8 Nd7 b6+ Kb8 b7 Rh4 b5 Ndf6 Bd3 f1B Bc2 Nh5 Bg1 f2 Qc4 Bb4 Qd3 Ne7 g8B Be6 Ng7 Ba2 Be6 Qd5 Bc8 Bg2 Rb3 f1N Rb2 Ka7 b8B+ Ka8 b6 Rb3 Bf4 Ng8 b7+ Ka7 Bfe3 Kb8 Ke2 d1N Nd2 Nf2 Qb5 Nh3 Nf3 Nd2 Ng5 Qf7 Rb1 d3+ Kd1 Qd5 Nf7 Ng3 Bgf2 Nh5 Re1 h1Q Bc5 Qh2 Re5 Nf1 Bg1 d2 Ke2 d1N Nd8 Nb2 Rg5 Nd2 Re1 Bb1 Re5 Qa8 Rg5 Nd3 Kd1 Ba2 Rf5 Nhf6 Rfe5 Nh5 Rg5 Nb2+
1b2rq1Q/3Nb1RR/K2N1PN1/3P1NPN/1bb3n1/1bbB4/1r1kb1n1/B2n4 w - - 0 1 illegal: No possible last move
1b6/1qrk2BN/2Nrq1PN/2P2nRn/4P1b1/rN1r1B1R/N3b3/b1rQ3K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 g4 h5 Kg2 f5 b4 a5 c4 d3 g6 d4 c5 d2 g5 d3 e3 f3+ Kh2 a4 b6 f4 b5 f2 b7 f3 g7 a3 b6 a2 g6 h4 Qe2 d1R Bh3 f1B Nc3 f2 Bf5 d2 Be6 h3 Bf5 Qe7 Nf3 Nf6 g8N Ra3 Nh6 Nh5 Bg4 Qe6 Nd4 Kd7 Nb3 Rh7 Bf3 Nc6 Bb2 Ne7 e4 Nf5 Rg1 Bd6+ Kh1 h2 Rg5 Bb8 Rc1 a1B Na2 Re7 Bg7 Rf7 Qe1 Be2 Rc3 Rc1 Qg1 d1R Qe1 Rd6 Qd1 Kc6 Re3 Rc7 Rd3 Kd7 Rc3 Ba7 Rd3 Rc3 Re3 Rcd3 b8N+ Kd8 Nd7 Bb8 b7 f1Q+ Rg1 Qe1 Nf6 Qb4 Nh7 Kd7 Rg5 Qb5 Bg4 Qa6 Rh3 Qc6 Kg2 h1R Bf3 Re1 Kh2 Bf1 Kh1 Qcd5 Qd2 Rc1 Qd1 Be2 Nf8+ Kd8 Qf1 Qe7 Nd4 Ne3 Bf6 Ba7 b8N Bg4 Bg7 Qee6 Nh7 Nf5 Nb3 Qb7 Nc6+ Kd7 Qd1 Bb8
2BN2r1/R2qBP1k/1q4qr/4bn1n/R1bP3b/K2Q2R1/1Rb2qP1/2R3bN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 a4 Kg7 d4 e5 Kd2 c5 Kc2 b5 Kb2 h5 d6 e4 d7 b3 a5 h3 f6+ Kh7 f5 b4 a6 h2 a7 e3 f7 e2 f6 e1B Bc4 h4 Bd5 c4 Ra4 h3 Bf4 c3+ Ka1 b2+ Ka2 c2 Bc4 c1B Bh6 Be3 Kb3 Nc6 Ne2 Qb6 d8R Nce7 Nc1 Ba6 Bg5 Bg1 Nd3 Bh4 Na3 b1B Be6 Bg7 f8R Nf5 f7 Nf6 Rb8 Nh5 Nf2 Be5 Nc4 Bc2+ Kb2 b3 Nd6 Bad3 Rg8 Bc4 Ka3 b2 Be7 b1Q Qd3 Q1b5 Rg3 Qd7 Rb7 Rag8 a8R Rg6 Nd1 Rhg8 R8a7 Rh6 Rb8 Bf2 Re1 h1Q Nb7 h2 Nd8 Qg1 Rf1 Be3 Nf2 h1Q Rc1 Qh3 Nh1 Qf2 Rbb7 Qg4 Rb8 Qg6 Rbb7 Qe8 Bc8 Qd7 Rb8 Qf3 Rbb7 Bg1 Rb8 Qf2 Rbb7 Qbc7 Rb2 Qcb6
1b1Qn1b1/1K1P1b2/1N2P1nN/rRB5/b2qn3/1qRB1b2/rPN3NN/1n4k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 f5+ Ke5 h5 e4 a5 b6 a4 d6 f3 d7 a3 b7 a2 d3 f2 g5 h3 g6 h2 g7 f4 Nh3 f3 Nc3 h4 Qd2 Bd6+ Ke6 Kd4 e5 c5 Qe1 c4 Ng1 h3 Ne4 c3 Nf6 c2 Bd2 c1Q Ne8 Nf6 g8N Rh5 Qd1 Nc6 b8N Qc2 Bc3+ Ke3 d4 Ne7 d5 Qb3 Na6 Bb8 Bb4 Ng6 Rc1 a1N Nec7 Nc2 Kd6 Ne8+ Kc6 Na3 d6 Nb1 Bd3 f1N Nd5+ Kf2 Nh6 Ng3 Rc3 Ne4 Nb6 Qh4 d8N Bd7+ Kb7 Ba4 Bc5+ Kg2 d7 f2 Qe1 f1B Nf3 Qf2 Nb4 Qd4 Nc2 Rf5 Ba6 Bc4 Qh4 Bg8 Ne6 Rg5 Rc1 h1B Bd3 h2 Re1 Rh5 Qd8 Kf2 Re3 Bg2 Nf4 h1B Nh2 Kg1 Rh3 Bf3 Ng2 Rg5 Rg3 Bh5 e6 Ra6 Bd6 Rga5 Rg5 Ra8 Rb5 R8a6 Nge3 B1f3 Ng2 Nf8 Rc8 Bhf7 Rc3 Ng6 Bc5 Ra7+ Kc8 R5a6 Rb4 Bc6 Bc4 Ra2 Bd3 Ba4 Rb5 Ra6 Kb7 Ra5
4bN2/Pr1P3N/R1nR1Q1B/b7/q2nnn1P/Br2qBq1/Kn1B3k/2q2B2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 a4 Kf6 e4 Ke5 h6 c5 a5 b5 h7 f5 a6 g5 d3 b3 Kd2 c4 Kc3 f3 Kb2 f2 a7 g4 d6 b4 d7 g3 Bg5 g2 Be7 Kf4 d4 Kg3 e5 f4 e6 c3+ Kc1 f3 d5 c2 Kb2 c1N d6 Nc6 Be2 f1Q Qe1+ f2 Nc3 Nd3+ Kb1 b2 Bf6 Qc7 d8B Nd4 e7 Rb8 e8B Ne7 Qc1 Qe1 Rh2 f1N Nd5 Nec6 Bf3 Bd7 Ka2 Nd2 Bde7 Ne4 Qh6 Qe3 Bg5 Rb7 Nh3 g1N Nf6 Nge2 Nf4 Rg8 Ng6 Nef4 Bf7 Be8 h8B Qb8 d7 b3+ Ka3 b1Q Nh7 b2 Bc4 Qf1 Rd2 b1Q Bg7 Qb4+ Ka2 Qa4+ Ba3 Bb4 Ngf8 Ba5 Qf6 Qc1 B7h6 Nb2 Bce2 Kh2 Bf1+ Ng2 Rd1 Qg3 Bf4 Rg5 Rd2 Rgb5 Rd1 Ne2 Rd6 Rb3 Bfg5 Ned4 Bf4 Qee1 Bd2 Qe3 B3e2 Nb5 Bf3 Qac4 Bc5 Bc7 Bcb4 Nf4 Bc5 Q1c3 Kb1 Nbd4 Ra6 Qc1+ Ka2 Ba5 Ba3 Qa4
b1n1RQqb/n4rqb/N2PNnP1/k4P1K/3r1N2/2n3r1/B1R3N1/1rN1B3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 h5 g4 e5 f4 c5 d4 Kc7 d6+ Kb6 d5 a5 g5 a4 d7 e3 Kf3 e2 d6 e1R Bd2 c4 Na3 e4+ Kg2 c3 Kh3 c2 Ne2 c1N Qb3 e3 Qe6 Ra7 Qb3 Rd1 Qa2 Nc6 Nd4 e2 Rh2 e1R Ne2 Nf6 Qf7 Na2 Nc2 a3 Nc1 Nc3 Ne3 a2 Ng2 Rg8 Bc4 Bg7 Qf8 Bh8 Bf7 Rf1 Be1 Rd4 Rb1 a1Q Ba2 Rb7 Rb2 Qe8 Re2 Na7 Re6 Rc7 d8N Bb7 Re5 Be4 Ne6 Bh7 Re2 Rf7 f5 Ncd5 Nef4 Ne7 Re5 Nec8 Re4 Qd8 Re8 Qb2 Ne3 Rg6 Rc2 Rgg7 Neg2 Rg6 Kh2 h3 Kg3 h2 Kh3 h1N Kh4 Rh6 g6 Nf2 Kg5 Nd1 Kh4 Nc3 Kg5 Kb7 b6 Ka6 b7 h4 b5+ Ka5 b8N h3 b6 h2 b7 h1B Na6 Rh3 b8N Rg3+ Kh4 Qb7 Nc5 Qbd7 Ne6 Q7e7 Ne3 Ba8 Ng2 Rg1 Qg7 Qf8 Na6 Qg8 Qf8 Qc7 Bf2 Rgd1 Be1 Qe7 Ne2 Rb1 Nc1 Ng4+ Kh5 Qf6 Ng5 Qfg7 Nge6 Nf6+
bbR1r2r/1B1P2b1/qnQ1n1rk/4P1q1/rNN1R3/2n2NP1/1B2K1N1/1Nb5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 f5 e4 Kf7 d4 Kg7 d6 h5 d5 a5 d7 c5 b6 a4 b5 f3 d6 h3 b7 c4 b6 h4 g3 a3 Qd4+ Nf6 Qd5 f4 Qd1 a2 Bb2 f2+ Ke2 c3 Qc2 f3+ Kd1 h2 Nd2 h3 Rb1 a1B Qb3 c2+ Kc1 Nc6 b8N Nd4 b7 Ne6 Be2 f1N Qc4 f2 Na6 Ne3 b8N Nd5 Nb4 Bb7 Qc6 Ra4 Ba6 Kh6 Ngf3 Bg7 Re1 Ba8 Bb7 f1Q e5 Qa6 Re3 Re8 Re4 Qe7 d8N Nc3 Nd7 Nfd5 Nb6 Qg5 Nc4 Nb6 d7 h1R+ Ne1 h2 Nf7+ Kh7 Ncd6 Rf1 Nc4 Rf6 Ng2 h1R+ Re1 Qf4 Ng5+ Kh6 Nf3 Rh3 Re4 Rg6 Na3 Qf5 Ndc4 Qf6 Kd2 Qg5+ Ke1 Rh2 Rd1 c1B Nb1 Rh3 Rd5 Rh2 Rc5 Rh4 Ba3 Bab2 Kf1 Be3 Ke1 Bbc1 Bb2 Rh2 Qb5 Bg1 Rc8 Bc5 Qc6 Bd6 Kf2 Bb8 Kf1 Rh4 Kf2 Rf4 Ke1 Rff8 Kf1 Rh8 Ke1 Nb5 Ke2 Nc3+
n1R4K/qn1P4/N6N/1PnR1qk1/Pq2bb2/3r1r2/R2RB1b1/BQ2bn1R w - - 0 1 illegal: No proof kernel
R7/NNrpB1qN/N1N3bR/b2P2nB/2brq2k/K2PnP2/3Q4/rn4q1 w - - 0 1 illegal: No possible last move, all moves rejected
1Br1B1b1/Krr1Qb1N/2P1r1R1/NR1qn3/P1nbr2B/4B2p/B3k1Pn/8 w - - 0 1 illegal: No possible last move, all moves rejected
r5k1/2r2r1r/1PB1P3/1P1NN2n/4q1r1/1bBn1b1p/RB2BbQK/R3B1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 Kf7 Kg2 c5 e4 f3+ Kh2 c4 g5 f2 e5 h3 b6 f4 b5 h4 d6 c3 d7 f3 d5 a4 d6 c2 Na3 Nc6 Rb1 Qe8 d8B Be6 d7 Rh7 Ne2 Nb4 Ng1 Bc5 Qd5 Nd3 Ne2 Nf6 g6+ Kg8 g7 Nh5 Nc4 a3 Bf6 a2 d8B a1R Bb2 c1R Nf4 R1a4 Be2 f1R Ra1 f2 Qg2 Qg6 Bc7 Qe4 Ra2 Bd5 e6 Rc2 Ne5 Bb3 Rg1 Be3 Bd6 Rc7 Nd5 Rac4 Bb4 Bc5 Kh1 h2 Be1 Be3 Nf7 Rca4 Bfc3 Bd4 Ne5 Bc5 Qf3 Be3 Kg2 h1B+ Kh2 h3 Qg3 Bf3 Qg2 Rd7 Bed2 Rc1 Be1 f1Q Rh1 Bf2 Rg1 Rh6 Rh1 Rf7 Rg1 Kh7 g8B+ Kh8 Bh7 Rc4 Bf5 Rhh7 Bg4 Kg8 Rh1 Qg6 Bf5 Rg4 Be4 Rc2 Ne3 Qf5 Bc6 Qe4 Nd5 Rc1 Bb4 Rc4 B4c3 Rc5 Be8 Rcc8 Bc6 Rcc7 Bed2 Qb1 Rc1 Qc2 Rb1 Qd1 Rba1 Qf1 Be1 Qg1+
RR1RbN2/P1R5/1N2P1q1/4p1b1/2P1B3/2Brn2q/k1rr1Rnr/1br2QK1 w - - 0 1 illegal: No proof kernel
qn1R1RB1/PNp3k1/1B6/PP1nr3/K3B1qB/Qq1nB3/1q1q3b/1N3br1 w - - 0 1 illegal: No proof kernel
bq3Q2/b3KB2/5RrB/BnPpP3/2q3b1/rNPn1rkN/1R2q3/2B1r2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 h5 e4+ f3 b6 f5 g3 a5 b7 a4 Qd3 a3 Qb5 f2 Qa5 a2 Ne2 h3 Ba3 h2 Ng1 f4 Nh3 f3 Ba6 f1R Bc1 f2 Qa3 h4 Nd2 Nh6 Rb1 a1R Rb2 Rg8 Nb3 Rg6 c3 Nf5 b5 Nd4 b6 Nb5 Qb4 Kf3 g4 Kg3 g5 Bd6+ Kd5 Nc6 b8B Qc7 b7 Ne5 Ba7 Ra3 b8B Nd3 Bb6 Re1 Bb7 f1Q Ba5 Qe2 Rf1 h1Q Rf6 Qhf1 e5 Qb6 Bc7 Ra6 Bd8 Bb8 Bc6 Ba7 Qf4+ Kg2 Be7 Qb8 Bf8 d6 Qf5 Kg3 Bh6 Qf4 Bb7 Qa4 Qf1 Bg4 Qf5 Qb4 Ke6 Qc4+ Ke7 Rc6 Qf1 Rc8 Bh1 Rf8 Ng1 h3 Qf5 h2 Nh3 Rd8 Qc8 Rdg8 Qf8 R8g7+ Rf7 Rf6 g6 Rg8 g7 Rf3 Bg2 h1B Rf6 Rh8 g8B Rh7+ Bg7 Rh6 Bf7 Rg6 Bgh6 Rf4 Bf1 Ba8 Bg2 d5 Bh1 Rf3
4bQ2/1BN1N1bn/2p5/Pb3K2/Nqr1P1PB/6Nk/br1RqnN1/R2r1n2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Ke4 h5 d4 f5+ Ke5 c6 a4 b3 g3 b2 a5 h4 d6 b4 d5 b3 e3 f3 g6 h3 g7 f2 Ra2 h2 Nf3 f4 Ke4 Nf6+ Ke5 Ne4 g8N Rh4 Kf5 Bg7 Ne1 f3 Ng2 Qe7 Bc4 f1N Nd2 b1Q Ba6 b2 Bb7 f2 Qf3 Rg4 Rg1 h1R Ra1 Qe8 Ne7 Ra6 Qf4 Rb6 Qh6 Rgh4 Qh8 Rb4 Qf8 R4h2 Ra2 Rc4 Ra1 Qd3 Ra2 b1B g4 Qe2 Rc2 Ba2 Bb2 Qd8 Bf6 Qb6 Bh4 Qb4 Rb2 Na6 Rc2 Nf6 Ne4 Nc5 Rd2 Nd3 Ng3 Nh7 e4 Qd1 Qf6 Qe2 Qh6 Ke8+ d7+ Kd8 Qf6 Kc7 Qf8 Kd6 Kg6 Ke5 d8N Be6 d6 Bd7 Ne6 Be8+ Qf7 Ne3 d7 f1B d8N Nf2 Nc7 Nd5 Nde6 Ne3 Ne1 Rg2 Nc5 Rgh2 Ngf5 Kf4 Na4 Rg2 Bf6 Rgh2 Ng2+ Kf3 Nfh4+ Kg3 Nhf5+ Kh3 Bh4 Qf3 Ng3 Bd3 Rb2 Qe2 Ra1 Rd1 Rd2 Nf1 Kf5 Rd4 Rc1 Bb5 Qf8 Rc4 Ra1 Qe1 Rd6 Nd3 Ne3 Rb2 Ng2 Nf2 Rd2 Qe2
b5rq/2nN2R1/pn1bK1B1/nP4P1/qrR1n1kB/2B1Q3/P1B5/B2b1N1r w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 b6 c4 g4 c5 bxc5 h3 cxd4 hxg4 d3 g5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Kf7 Kc3 c5 Kc4 h5 Kd5 e5 g4 h4 f4 e4 b4 a6 b5 d2 g6+ Kf6 g7 c4 Ne2 e3 Ba3 h3 Nbc3 h2 Bg2 Bd6 Qc1 d1N Ng3 e2 Nf1 e1Q Bb4 Qh4 Be4 Nf2 Na4 c3 Bc2 Ne4 Rg1 h1R Nb6 Qf8 Qe3 Bb7+ Kc4 Qe8 Rc1 Ne7 g8B Nd5 Bf7 Nc7 Bg6 Qg8+ Kd4 Qb3 Rg2 Qa4 Kc4 Rf8 Kd4 Qh8 Kc4 Kg7 f6+ Kh6 f7 Rg8 f8B+ Rg7 Bd3 c2 Be7 Rf7 Bh4 Rf5 Ra1 c1N Bc2 Nb3 Rc1 Rg5 f5 Na5+ Kd3 Bc6 f6 Bb7 Kd4 Bc6 Qe1 Rf5 Qe3+ Rf4 Bb3 Bb7 Rc4 Bd5 Bc2 Bc6 Bhe1 Kg5 Bbc3 Bb7 Rf2 Kh4 g5 Kg4 Rh2 Ba3 Ke5 d5 Nd7 d4 Rd2 d3 Bh4 Bd5 Rd1 d2 Rc1 d1B Ba1 Qh7 f7 Bc6 f8B Qh8+ Bg7 Bd6+ Kd4 Bb4 Rc3 Ne6+ Ke5 N6c5 Nf8 Nd2 Rd3 Ne6 Rd7 Nc7 Bb1 Re4+ Kf6 Bd6 Rc3 Rd4 Bbc2 Rb4 Rc4+ Ne4+ Kf7 Bb7 Re7 Nd7 Bgc3 Nb6 Nd7 Ncd5 Ke6 Rg8 Rh7 Ba8 Rg7 Nc7+
1R2NrN1/2b1NPn1/4QPbq/2B5/r3P2r/pn3b2/knKb3N/1NqBR3 w - - 0 1 illegal: No possible last move
nk2K3/bN1BNpBq/2P1nP1R/B3R2r/1br5/B3Q2b/r3BP2/1qb1n3 w - - 0 1 legal: proof: e4 c5 h4 b5 a4 g5 d3 gxh4 d4 cxd4 axb5 Qb6 Qd2 Qe6 Qd1 Qf5 exf5 Ba6 Nh3 Bb7 Ng1 Bc8 Ke2 Kd8 Kf3 Kc7 Kg4 e5 Kh5 a5 c4 d5 g4 h3 b4 a4 c5 h2 g5 a3 c6 a2 f6 d3 g6 d2 g7 d4 Ne2 d3 Bh3 e4 Bd7 e3 Bb2 Bc5 Bc1 Ba7 Nf4 e2 Na3 e1B Qf3 d1N Nc4 d2 Ba3 Ne7 g8B Nb2 Kh6 d1Q Kg7 h5 Kf8 h4 Nd6 h3 Ng6 Nd3 Nb7 Qb1 Ke8 Rh5 Qe3 Nf5 Ne7 Na6 b6+ Kb8 b5 Bb4 Bh7 Nd4 Bg6 Ne1 Bd3 Ne6 Be2 Qh7 Rc1 a1B Rc5 Rh4 Re5 Rc4 Nd8 Bb2 b7 Kc7 b6+ Kd6 Rg1 h1Q Rg6 h2 Rh6 Bc1 b8B+ Nec7+ Kf8 Nc5 b7 Qg1 Qg3 h1R Qe3 Bb6 Ba7 Rh5 b8B Qgg6 Beg4 Qb1 Be2 B6a5 Bb6 Ra6 B8a7 Na8 Ke8 Ne6 Bc5+ Kc7 Bab6+ Kb8 Nb7 Ra7 Nf5 Ra6 Bf8 Bc5 Bg7 Bab4 Ne7 Ra4 Bb2 Ra2 Ba5 Ba7 Ba3 Nf4 Bh3 Bf5 Bhg4 Ne6 Bh3 Be4 Bf5 Bg2 Bfg4 Bh3 Bf5 Nd4 Bd7 Ne6
KR1BBr1B/r1QnPB1n/rbNP2q1/8/2B2n1P/r7/1b1pb3/kN3qR1 w - - 0 1 illegal: No possible last move, all moves rejected
nN2N1qK/p4r1P/R1nRn3/7B/2qBkqR1/R2b3P/R1b1P1q1/2b2r1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 g5 b4 f3 b6 d3 h6 d5+ Kh5 f5 Kg6 f2 h7 d2 b7 d4 b5 f4 b6 g4 h3 d3 c5 f3 c6 g3 c7 Na6 b8R Ba3 Kg7 Bf5 c8R Nc7 b7 Ne7 Nc3 Rf8 Qe1 d1Q Nd5 d2 Bg2 f1Q Nf6 f2 Bf3 g2 Bh5 Bd3 Nf3+ Kf4 Bb2 g1N Bc3 Qc2 Ne5 Bc1 Ned7 Nf3 Rg1 d1B Ra6 Ng5 Bd4 Qc6 Rg3 Qfg2 Rg4+ Kf5 Ra3 B1c2 Qh1 f1Q Ra2 Qe8 Rd8 Qc4 Ra3 Nc6 Ra2 Qee6 Ra3 Re8 Ra2 Re7+ Kh8 Rg7 Ra3 Qf7 Ra2 Nge6 Ra3 Na5 Rbc8 Qg6 b8R Qff3 Rb4 Qe3 Rcb8 Nc6 R8b6 Rc8 Rba6 Na8 Nb8 Qf7 Ng8 Qh6 Rd6 Rf8 Rb2 Qfg6 Rg3 Ke4 Rba2 Rf1 Rg4+ Qf4 Nf6+ Kf5 Nfd7 Rf7 Nf6 Qgg5 Ne8 Ke4 Bb6 Qg6 Bd4 Qg8+
2BnKnR1/r3n1Pn/4q1b1/1Pk5/2NNpn2/1RQ2PB1/2BB1nB1/br1b4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 d5 b4 Kd7 c4 Kd6 g4 a5 g6 h5 g5 e5 b6 d3 Ke3 h4 g7 a4 f3 a3 g6 h3 b7 d4+ Kf2 e3+ Kg3 h2 b5 e2 Be3 e1N Qc1 a2 Qd2 e4 Kf4 Kc5 Ke5 Qe7+ Kf4 Nd7 Kf5 Qe6+ Kg5 Ne7 b8B Ra7 g8B Bg7 Bef4 Ng2 Qe1 d2 Ne2 d1N Rg1 h1N Na3 d3 Rb1 a1N Qc3 d2 Rb3 Nf8 Nd4 Ndf2 Bbe5 d1B Bd2 Nf4 Bg2 Ng4 Bc7 Nh5 Bg3 Ngf6 Bf7 Nf4 Bg8 Kd6 c5+ Kd5 c6 Nc2 c7 Nb4 Bf7 Nf2 Nc4 Kc5 Bg8 Bd7 c8B Nbc6 Bf7 Rh1 Bg8 N6h5 Bf7 Be5 Kh6 Nf6+ Kg7 Nd8 Bg8 Qg4 Bd5 Bf5 Bg8 Nb7 Kf7 N6h7 Ke8 Nd8 g7 Be2 Ra1 Rb1 Ra6 Bd1 Rh6 Ng5 Rh8 Ngh7 Bf7 Qh3 Rg8 Bg6 Nb2+ Kb6 Qc4 Bc7 Ne2 Ra8 Rb4 Ra6 Qc2 Bf5 Bb3 Ra7 Nc4+ Kc5 Ba4 Ba5 Nd4 Qg4 Rb2 Bc3 Rb4 Bb2 Qc3 Ba1 Bc2 Qh3 Rb3 Qh6 Bh1 Qe6 Bg2 Bg6+
1bb1bR1r/1Nn1q2B/1nP4B/PB1pbn2/3Br1k1/R1NB1n1b/2PQ4/K7 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kd2 Ke7 h4 Ke6 a4 Kf5 e6 b5 c6 g5 e3 g3 a5 g2 h5 g4 e7 b3 Kc3 b4+ Kb2 g3 e8B Bd6 h6 Be5+ Nc3 Na6 h7 Nh6 Qd4 Nc7 e4+ Kg4 Qd2 f5 Ne2 g1N Bf7 g2 Nd4 f4 Ncb5 f3 Rh3 f2 Ra2 Nf5 Rh1 Nf3 Ka1 g1B B7c4 Bgh2 Ra3 Qe7 Bfd3 f1B Nc3 Bh3 Rf1 d6 Ndb5 b2+ Ka2 b1N Ka1 Re8 h8B b3 Bg7 Rh8 Bb2 Rb8 Bh6 Rb6 Na7 Rb4 Bb5 Bg7 e5 Re4 e6 Bge5 Nd1 Bhf4 Bd4 Nc3 Rf2 N3d5 Nc3 Nb6 Rf1 Bd7 Nc8 Be8 Rf2 d5 Nd6 Bh2 Nb7 b2+ Ka2 b1B+ Ka1 Ba2 Rf1 Qb4 e7 Bc4 Rf2 Bh5 e8B Qe7 Bd7 Be8 Be6 Bhf4 Bg8 Bh2 Ba4 Ba6 Bab5 Ne6 Rf1 Bb8 Bh7 Bhe5 Nd8 Bc8 Nb7 Nc7 Rf2 N3h4 Rf1 Ng3 Rf7 Nf3 Rf8 Nf5
NBR2R2/1P1Br2n/p2rP1K1/bbNPbb2/2R5/2R2q1Q/1b2n2R/b5kq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 b6 f5 h5 c5 d6 g5 b5 a6 b7 g3+ Kf3 c4 h6 g2 b6 g4+ Kf2 f3 Kg3 f2 Kf4 g3 d3 c3 h7 c2 e5 Nf6 Kg5 f4 d7 f3 Qe1 Bg7 Ra3 Re8 h8R Nh7+ Kh5 Qf6 Nd2 Nc6 b8R Re7 Ne2+ Ke3 d8R g1B b7 g2 Rh4 Nd4 Nf4+ Ne2 Rdf8 Bh2 Ne6 g1B Bh3 f1B Nc5 f2 Rc4 Qf3+ Kg6 Bg4 Rbc8 Rb8 Bb2 c1B Rac3 Qh1 Ba3 Bb2 Bb4 Bf4 Ba5 Qf3 Bc7 Ra8 Bb8 Bgh2 e6 Bc7 Bg2 Ba5 Qb1 Ba1 Qb3 Bhe5 Qa3 Qf4 Bc6 Qf3 Bd7 Qh1 Rb3 Beb2 Rbc3 Be5 Nde4 Qf3 Nf6 Qh1 Qb3 Kf3 d4+ Kg2 d5 Kg1 Ne8 Qf3 Bd6 Rb8 Nc7 Qh1 Rce8 Rd8 Na8 Qf3 Bb8 Qh1 Ba4 Rd6 Rd8 Bfh3 Bc6 f1Q Rc8 Qff3 Bd7 Bf1 Qa3 Ng5 Rh2 Nh7 Re4 Nc1 Qb3 Bb5 Rec4 Ne2 Rc1+ Qf1 Qh3 Qf3 R1c3 Q1g2 Re4 Qh1 Rec4 Bf5+
bB3Brk/1B3brr/N5p1/Bn5n/2b2RQr/3q3P/3P1BPR/bN2n2K w - - 0 1 illegal: No proof kernel
br2K2B/3pP1RN/4b2R/N2PR2r/1R2r3/4Rr2/QqnBP1n1/2bnb1k1 w - - 0 1 legal: proof: f4 b5 h4 e5 fxe5 g5 a4 gxh4 axb5 c6 b4 Qb6 g3 Ba6 Bg2 Qc5 b6 Qc4 b5 Bc8 b7 Qc5 b6 Qe7 Be4 Qg5 Bd3 Qd8 Bb5 cxb5 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 Kd4 c4 h5 g4 a5 e6 h3 e7 h4 c5 a4 g5 a3 c6 b4 c7 a2 g6 b3 d3 b2 g7 h2 Nh3 Nf6 g8R Nh5 Bg5 Nc6 b8R Ra4 b7 Nb4 Qe1 Nf4 Kf6 Ke3 d4 Bh6 d5 Nc2 Rg6 Re4 Nc3 b1B Nf2 h3 Bh4 Ng2 Rg7 Rg8 Rf1 h1N Na4 h2 Nh3 Nf2 Qa5 h1R Nb2 Nd1 Be1 Rh8 Ng5 Rh5 Bc3 Qg8 Rg1 Kf2 Nh7 Bc1 Nc4 Qe8 Rh1 Rf8 Rh4 Kg1 Bd2 Qd8 Rg5 Rh8 Kg7 f5 Kf7 f4 Re5 f3 Qa8 f2 Na5 Rg8 Rh3 f1R+ Rf3 Re1 Re3 Rg3 Qa7 Qh8 Qa6 Qf6+ Ke8 Rf3 Qc4 Qb6 Qa4 Qb2 Qb3 Nd4 Qc4 Bd3 Rb1 a1B Qa2 Bc2 Ra8 Bd3 b8B Bb7 c8R Nc2 Ra6 Ba8 Rg6 Ref1 Rcc6 Re1 Rg7 Ref1 Kd8 R1f2 Rh6 Rf8+ Kc7 R2f3 Ba7 Rb8 Bd4 Reh4 B4c3 Bf5 Bd4 Re4 B4c3 Rb7+ Kd8 Be6 Ke8 Qb3 Bd4 Bc3 Rf5 Qa3 Rb4 Qb2 Bf6 Be5 Rfg5 Bg3 Re5 Rb6 Rgg6 Bf2 Bh8 Be1 Rg7 Rb8+
2k1N2b/K1r1Rr1n/4R2N/B1NP2Pp/4rQb1/1bPbr3/q1q3n1/1B2NN2 w - - 0 1 illegal: No proof kernel
1KnQ4/4qP1r/Rn2nkq1/2R3R1/Nqb1p1P1/B2P2R1/1R1n2Nb/3qr2B w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 e5 f4 h5 b4 c5 g4 a5 f5 c4 b6 c3 d6 c2 d3 a4 b7 a3 d7 h3 b5 h4 f6 h2 b6 a2 Qe2 h3 Qf3 Bd6 Ba3 c1N Ne2 Qe7 d8R Be6 Qg3 Bc4 Qh4 Nd7 b8R Rh7 b7 Nb3 Nbc3 Nbc5 Re8 Ne6 Bg2 Nb6 Rhg1 h1Q Nf4 h2 Na4 Ra7 Rgc1 Qd1 Bh1 Bc7 Ng2 Ra5 Rab1 a1N Ra8 Nb3 b8R Nd2 Rb2 Qb4 Rc3 Ne7 Ra6 Nec8 Rba8 Kg6 f7 Bb8 Qe7 Kg7 Qd7 Kf6 Qd8+ Qe7 Rg8 Bc7 Rb8 Rb5 Ra2 Rb1 Rg5 Bd6 Rb3 Bc7 Rb5 Ra1 Rc5 Rb1 Kf2 e3+ Kg3 e2 Ra1 Nd7 Rb2 e4+ Kf2 Ndb6 Ke3 Nf4 Kd4 e1Q Kc3 Ne6 Kb4 Ba2 Kb5 Bc4+ Kc6 Rc1 Kb7 Rb1 Nh4 Rc1 Bg2 h1Q Bf3 Qhf1 Bh1 Qf5 Ng2 Qg6 Raa2 Qb3 Ra1 Qb4 Raa2 Qe2 Ra1 Rf1 Re1 Qf3 Re3 Qd1 Rg3 Be5+ Qc7 Re1 Kb8 Bd4 Qd7 Bg1 Qd8 Bh2
Kn1B2Br/1qp4q/BBP1b3/1nr1N1r1/b1R5/Pr3P2/kN1Q4/B2q1R1q w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 f5 Nh3 d5 Ng1 Bh6 gxf5 dxe4 Qf3 g4 Qd1 Bg5 hxg5 Ra4 Nh3 Ra6 Ng1 Ra8 Ke2 Kd7 Ke3 Kc6 c4 Kc5 g6 b5 f3 h5 f6 e5 g7 h4 f7 g3 f8B+ Ne7 g8B b3 d4+ Kb4 d5 g2 d6 b2 c5 h3 c6 h2 d7 Ra3+ Bd3 Rb3 Nd2 Ka3 Bg7 b4 Bh6 Nd5+ Kf2 e3+ Ke2 e4 Nh3 g1R Qe1 Rg5 Rf1 h1Q Nf2 Qe8 d8B Be6 Bf8 Qd7 Bb5 Qc8 Nd3 Qh7 Bc4 Rc3 Ba6 Rc5 Bg7 b3 Qf2 Nc3+ Ke1 e2 Ne5 Nb5 Ndc4+ Kb4 Kd2 b1B Nb2 Bc2 Ke3 Kc3 a3 e1Q+ Kf4 Qd1 Be3 Qe1 Qh2 Qd1 Bf2 e3 Rc1 e2 Bg1 Rd5 Bb6 e1Q Qe2 Qeh4+ Ke3 Qh1 Kf4 Rc5 Qe1+ Kd4 Qd2+ Bd3 Rc4+ Kd5 Na4 b2 Bgf6 b1R Nb2 Nd4 Bg7 Bc2 Ke3 Ba4 Bgf6 Rf5 Kd3 Rg5+ Kc3 Bf7 Kb4 Be6 Nd3 Nb5 Ka5 Rc1 Bd4 Rc3 Ne5 Rb3 Nbd3 Qf5 Ba1 Qfh7 Nb2+ Rd3 Rh4 Qe4 Bb7 Kd4 Qf4 Kc3 Qd2+ Kb3 Rg4 Nd7 Ka6 Qeh7 Rb4+ Ka2 Rc4 Nd4 Ka7 Rb3 Ba6 Nb8 Ka8 Nb5 Qd7 Qg7 Qd3 Qgh7 Qd2 Qb7+
B4rR1/q1PR2n1/b1RB2K1/1npNbR2/3b2Qb/2P3R1/3Pbn2/3k1Nqb w - - 0 1 illegal: No proof kernel
8/NB2NqpQ/bb3q1b/nb2n1k1/n1RNq1P1/K1B1N1nR/1P3P2/2r3N1 w - - 0 1 illegal: No proof kernel
3Nq1nr/1N1B4/rNP2n1Q/3pq3/K1n3PR/2P2N1r/Nk1bRp1B/q6b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kd2 Ke7 Kc3 Kf6 Kb3 Ke5 g4 h5 e4 a5 c6 f5 b6 f3 b7 h3 Ba6 h4 Na3 f4 Bd2 Kd4 e5 f2 e6 f1N e7 h2 e8N f3 Bb5 h3 Nd6 f2 Ra2 Bh6 Qc1 Qe8 Nb1 Ng3 Bf4 Ne4 Nc3 Ra6 Ka4 Nef6 b4 Qe5 Bg3 Bd2 Rb2 Qe8 Na2 Qe5 Bd3 Qe8 b5 Qe5 Bf5 Qe8 Nb4 Kc3 Nf3 Qe5 Re1 h1Q Bh2 Qg2 Rh1 Qgg3 Ra2 Qe8 Be6 Qe5 Bf5 Be1 Qh6 Bd2 Ne4+ Kc4 Nc5 Kc3 Be6 d6 Bd7 d5 Raa1 Kb2 Rae1 Kc3 Na2+ Kb2 Bf5 Be6 Re2 Bf7 Bd7 Bg6 Ne6 Be4 Nd8 Ra7 Bf4 h2 c3 Na6 b6 Nc5+ Kb5 a4 b8N a3 b7 Ra8 Na6 Nb3 b8N Na5 Nc5 Ra7 Ka4 Ra6 Rd1 h1R Ncb7 Rh3 Rh1 Rg3 Rh4 Rh3 Nb4 a2 Bh2 a1Q+ Na2 Qc7 Be6 Qe5 Nd7 Q8h5 Nb6 Qe8 Nd4 Bf3 Bd7 Bh1 Nf3 Nc4+
2b1RRBB/q1Nr2Q1/1P2qP2/r1K3n1/5Np1/4kqp1/3n1RP1/RRb1n1b1 w - - 0 1 legal: proof: c4 b5 e4 h5 a4 f5 axb5 fxe4 Qg4 d5 cxd5 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 b4 Kf4 h4 c5+ Kc4 g5 d4+ e3 b6 e5 b7 a5 d6 g3 d5 a4 d7 a3 b5 e4 b6 a2 d6 g4 h5 Qf6 d8R Nc6 b8R Nd4 h6 Ra5 d7 Nb3 h7 Nh6 Bb2 e2 Nc3 e1N Re8 e3 d8R e2 Rd2 Nf7 Nb5 Ng5 Nc7 Bd6 Rb1 a1Q f3 Be7 Nh3+ Ke3 f4 Rf8 h8Q Rf7 Rc2 Nd2+ Kd5 Qc3 f5 c4+ Kc6 Qd3 Qg7 c3 Nf4 Qa3 Rf8 Bc5 Ba1 Qa6 Rcb2 c2 Kd5 Bd7 Rbe8+ Re7 Ra2 c1B Bf6 Qa7 Rg1 Nef3 Bc3 e1Q Bc4 Bc8 Ba1 Nf1 Rf2 N1d2 Kc6 Qe2 Bg8 Qa2 Rd1 Ne1 Be5 Rd7 Ra1 B1a3 Rdb1 Qf3+ Bd5 Qb2 Qf6 Nde4 Bg8 Qa2 Rf1 Kd2 Qe7 Qab3 Bh8 Bc1 f6 Bg1 Rf2+ Ke3 Qf7 Ra3 Qg7 Qe6+ Kb5 Nd2 Kc5 Ra5+
nQq5/RqR1pnR1/4NR1P/6K1/N2PR3/1Bn1Pp2/2b4b/rqrr1B1k w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 h6 g5 Bb7 b3 Qd7 g6 Qd6 Bb2 Bc8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 h4 Ke5 h5 c5 b6 f5 e3 a5 g7 c4 d3 c3 b4 a4 b5 a3 d6 c2 d7 c1R b7 g4+ Kf2 f3 Kg3 f2 Kh4 f4 b6 a2 d4+ Ke4 Be2 f1Q Bc4 g3 Ne2 Kf3 Bb5 Kg2 Nbc3 f3 Qb3 Nh6 g8B Bg7 Kg5 Na6 b8R Be5 b7 Nc7 Na4 Qe8 d8R Bf5 Qb2 Bc2 Rd7 Qc8 Rh4 Qh1 Re4 Nf7+ Kg6 Qh2 Nf4+ Kh1 Ne6 g2 Bf1 g1N h6 Ne2 Rd6 Rd1 Rc1 Ra6 Ra8 a1Q b8R Qb1 Ra7 Nc3 Rbb7 Na8 Rc7 Qe2 Qb8 Bh2 Rb6 Qeb5 Rbc6 Ne5+ Kg5 Qbb7 Rd6 Rd3 Re1 Rd1 Re2 Rc6 Rg2 Rc4 Nf4 Rc5 Bb3 Ra5 Rf6 Nf7+ Kh4 Rd8 Ne6 Rdd5 Rg7 Rdc5 Nb6 Ra1 Na4 Rc1 Kg4 Rg5+ Kh4 Rg2 Kh5 Rd2 Kh4 Rdd1 Kg4 Nd6 Kg5 Nf7+
1N1bQ2N/R1b4N/PP3r1n/p1B1pN1K/rbkn4/5Nnb/P4b2/B3R1q1 w - - 0 1 illegal: No proof kernel
4rR1n/k1r2pR1/2Q2b2/p3r3/PP1n1KN1/1nqR1Bn1/2nb1P2/1RB2N1R w - - 0 1 legal: proof: d4 g5 c4 e5 dxe5 b5 Be3 bxc4 Bd2 Nh6 Bc1 Ng8 h4 gxh4 e4 d5 Qb3 d4 Qd3 Bb7 Qd1 Bd5 exd5 Qg5 Bd3 Qe7 Bf1 Qd8 Kd2 Kd7 a4 Kc8 g4 Kb7 b4 c5 e6 a5 d6 h5 e7 c3+ Kd3 c4+ Ke4 c2 e8R d3 g5 c3 g6 h3 g7 h4 d7 d2 Kf4 h2 Qe2 d1N Qd3 h3 Qf5 Qc8 d8R Ra7 Kf3 Nc6 Ba3 c1N Ke4 c2 Ra2 Nb3 Nc3 c1B Qf3 Nge7 g8R Ne3 Rg6 Nc2 Nd1 Bd2 Rb2 N6d4 Rg7 Qc3 Rb1 Ng6 Ne2 Be7 Bg2 Bf6 Ne3 Kb6 Rd7 Rc7 Rf8 Ka7 Bc1 Rh5 Rdd8 Nh8 Ng3 Re5+ Kf4 Re8 Nf1 Re5 Rg1 h1N Qc6 h2 Bf3 Ng3 Rd5 h1R Rd6 Rh2 Rh1 Rhh5 Rd7 Re8 Rd8 Be1 Ng4 Rhe5 Rd6 Ndf5 Rd1 Nfd4 Rd3 Bd2+
1BrBRB2/1N2PpK1/1qN1BB2/1P2p3/2nR3r/rb1bn1rQ/1br4P/6k1 w - - 0 1 illegal: No proof kernel
B4n2/Q1B2q2/1KRPk2r/rbPnpp1r/2Bbnb2/5B2/1P1b2N1/4N1BR w - - 0 1 illegal: No possible last move, all moves rejected
BbQ2nkn/qKPrpRb1/1RP5/P1r1Np1r/3N2R1/3r1b1R/5n2/2BR4 w - - 0 1 illegal: No possible last move
r1n2n1b/P1qn1bkP/6N1/1B1Nn2p/Q1rq1P1N/4p3/1n4R1/K2NNRB1 w - - 0 1 illegal: No proof kernel
3b1qkn/4Rqbn/1K3BN1/2PQ1q1R/3B1BN1/r2p2n1/2pP1BBP/r3q3 w - - 0 1 illegal: No possible last move
1n1q1n1R/r1k3B1/B2bn1BP/P4pB1/2K1P1Nq/Qr1R2np/1B2b3/N5q1 w - - 0 1 illegal: No proof kernel
1R1N3N/K2b1n1k/2BrP1p1/1bnn4/rb4p1/2NNPbR1/1P1NqQ1B/6q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 a5 c4 f5 h4 Kf7 e6+ Kg6 c5 d5 h5+ Kh7 c6 g6 b6 f4 c7 d3 h6 f3 Ke3 a4 Kd4 d2 b7 f2 Ra3 Ra5 Qc2 d1N Rg3 a3 Nc3 a2 Nh3 a1Q Bf4 Qd6 e3 Nd7 b8N Nc5 Bg2 f1B Nc6 Bb5 Nf2 Bd7 Nd8 Qa6 c8N Ra2 Nd6 Ra4+ Nc4 Qc1 Nb1 Nc3 Nd3 Qg1 Qf2 Bd6 Rh5 Be7 Rf5 Bd6 Rf8 Be7 Ke5 d4 Bc6 Nd5 Re8 Bf8 Ncd2 Be7 Nc3 Bf8 Nb4 d3 Kd4 Be7 Rh3 Bd6 Bh2 Bf8 Rg3 Bd6 Nc4 d2 Nd3 d1B Rf8 Bf3 Re8 Ne4 Rf8 Bb4 Nd2 Ng5 Re8 Ngf6 Rf8 Rg8 Re8 Nfe4 Rf8 Kh8 h7 Nc5 Re8 Kg7 h8N Rf8 Ndf7 Kg8 Rb8 Kh7 Nd8 Rf4+ Ke5 Rd4 Kd6 Ne7+ Kc7 Rd6 Rb6 Nf7 Kb8 Nd5 Rb7 Ra3 Rb6 Qa4 Rb7 Qc2 Rb6 Ra4 Rb7 Na6+ Ka7 Qcd1 Rb6 Qe2 Rb8 Nc5+
1bKB4/7B/Pb2RB1R/2r4p/BB1nrP1n/Q2q1rqP/p2N1bkr/2N5 w - - 0 1 illegal: No proof kernel
1R2B3/2n3pn/BK1B3P/1QN2pPN/qBr2B2/P1bq1n1b/R2bn2r/3k4 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 h5 Qc2 d5 cxd5 e5 Qf5 exf4 Qxh5 Qg5 Qh7 Qd8 Kf2 Ke7 h4 Kd6 e4 Ke5 g4 Kd4 d3 c5 d6 b5 d7 b3 g5 f3 a3 b4 e5 c4 h5 c3 e6 b2 e7 c2 e8B b3 Nc3 b1N Qf5 b2 Bf4 c1B Na4 Nc3 Qb5 b1Q Ra2 Qb4 Nh3 Ne2 Nc5 Kc3 d4 Ra4 d5 Bd2 d6 Nf6 Rh2 Nh7 h6 Na6 Rb2 Nc7 Rb3+ Kc2 Rb1 Be1+ Ke3 f2 Rb3 Kd1 Kd3 Qe7 d8B Qd7 Be7 Bc3 Rg2 Qd8 d7 Qa5 Bfd6 Rh4 Nf4 Qa4 Nh5 Rh2 Bf4 Bd2 Bed6 Be7 Rb2 Bf6 Rb4 Bfc3 Kc4 Qe7 d8B Qe3 Bf6 Bh3 Bfe7 f5 Bf8 Ng1 Bd3 f1N Bfe7 Ng3 Re2 Bc1 Ra2 Nf3 Bf1 B1d2 Bd3 Ne6 Kd5 Qe2 Kc6 Nc7 Kb6 Qe4 Bc4 Qd3 Ne6 Qdc2 Qd7 Ng1 Kc5 Be5 Bg6 Qb2 Ba6 Re8 Bf6 Qb1 Rb8 Bb2 Qb5 Qd3 Kb6 N3e2 Nc5 Nf3 Bc3 Re4 Be8 Rc4 Bb4 Bbc3
1Bn1KqRN/nn1Q1Bpq/p2N1r2/N4Pq1/1b4N1/PRP3qb/k7/4N1r1 w - - 0 1 illegal: No possible last move
2b1qQ2/2PRBnNN/2P1RbK1/nkr1RR2/2p1p1B1/1r1b4/1P2nb1R/6q1 w - - 0 1 illegal: No proof kernel
3NK1q1/1P1Rn3/2n1B1PB/1k2Ppqb/8/QN1rBR2/1q1pq1rb/3BB2r w - - 0 1 illegal: No proof kernel
1NN2q2/1PNQ2Bb/P2rpN1n/3B2kP/qrRR4/3n3b/3pr1N1/1K4bb w - - 0 1 illegal: No possible last move, all moves rejected
1k1bN1N1/bpN2q2/r3Rq1R/1n4N1/P6P/1p1n1B1K/rP2r2N/4BnQr w - - 0 1 illegal: No proof kernel
Br1k1b1N/PBrpnn2/7B/3n2BP/2K1n2p/3Nr2B/1qbR1Pq1/4Q1R1 w - - 0 1 illegal: No proof kernel
B1r1rb2/p2n4/k5b1/B4P1q/4brBB/3PP1B1/K1p1R1rN/N1QRqn2 w - - 0 1 illegal: No proof kernel
2rB1B2/B2r1Pp1/1K4nQ/r2pP1n1/P1b1N1q1/2R1b1R1/1nNr2Bn/4B1k1 w - - 0 1 illegal: No proof kernel
3rRR2/2np1KQ1/P1r5/1PBb1Pq1/3Rr2p/2n2k2/1N2Rr2/1nN1nBbR w - - 0 1 illegal: No proof kernel
kB1Nr3/N1q4R/2bn1bq1/1p1p1N1Q/NPr1q2R/3B4/Kq1P1P2/bq4N1 w - - 1 2 illegal: No possible last move
Q1nnr3/1K1n1qrN/4R3/1p2Bb2/R2pPB2/1q1P1rB1/BkP4N/2qq2B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 a5 Bc5 b4 Bb6 axb6 c5 Bg2 cxb4 Bh3 Ke7 Bf1 Ke8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 a5 e3 d5+ Kd4 f5 Kc5 Ke5 h6 a4 e4 a3 h5 a2 b7 f3 h7 f4 h6 b3 Nh3 f2 Nc3 b2 Be2 f1Q Rg1 b1Q Nf2 f3 Bc4 g4 Nh3 f2 Qf3 g3 Ne2 g2 Qf8 Nc6 Ng3 Ra3 Ng5 Nge7 b8B+ Qc7 Bb3 Qd1 Nf1 Bf5 Nh2 f1Q Bc4 Rg3 d3 Rf3 Qd8 Rg8 h8B+ Rg7 h7 Qb3 Rh1 g1N Ba7 Qb7 Qa8 Nc8 Be3 Qf7 Bf4+ Kf6 Bab8 Qfe1 Bg3 Qed2 Bbf4 Q2c1 Rb1 a1R Rb2 Ra7 Ra2 Re7 Ra4 Nh3 Rg1 Re8 Rf1 Nf2 Rg1 Qbb2 Ba2 Ng4 Rf1 Nge5 Rg1 N8a7 Kb6 Nd7+ Kb7 Qb3 Rh1 Nc8 Rf1 Kg6 Rf2 Rgg8 Bd4 Rg7 Bde3 Kf6 h8B d4 Nh7+ Ke7 Rf1 Ke6 Bg1 Ke7 Ng4 Ke6 Ne5 Kd6 Ng4+ Kc5 Nh2 Bg4 Ra7 Kb4 Ra4+ Kc3 Rf2 Kb2 Rg2 Rg5 Bhe5 Bh3 Be1 Rg7 Rg6 Bg4 Re6 Bf5 Beg3 Nd8+
Kn5N/1pr1rPQ1/3n1p2/1Brk1PRq/1r4RB/1N4N1/bP1NN3/q3q2n w - - 1 2 illegal: No extended proof kernel
b1n4b/k6B/1p1RNrn1/2Q1qB2/3n1Bb1/1pBKqP2/bP4P1/3NB1nR w - - 0 1 illegal: No proof kernel
K2r1N2/2p4R/B2nnRR1/kP2B3/1R4b1/PqPp1nb1/2Q2b1b/Rq3Nn1 w - - 0 1 illegal: No proof kernel
1KN3b1/NBrpN2q/br3r2/n4nN1/QRpp1b2/1P2N2P/BRP5/n5k1 w - - 0 1 legal: proof: d4 e5 f4 exd4 a4 b5 axb5 g5 fxg5 h6 g6 Rh7 g7 Rh8 g4 Be7 g5 Bd6 g6 Bf8 Bg5 hxg5 Kf2 Ke7 Kf3 Kf6 Ke4 a5 Kd5 Kf5 e4+ Kf4 h3 Kg3 b6 Kf2 e5 f5 b7 c5 e6 g4 e7 a4 Kd6 f4 Qd3 a3 Ra2 f3 Qb3 g3 Bg2 Rh6 Nc3 Nc6 b8N Ba6 Qa4 Ra7 Nd5 Rc7 Ne3 Na5 Nc6 Qe8 Na7 Qf7 Ra1 a2 Rb1 Nf6 g8B a1N g7 Ne8+ Ke5 Nd6 e8N Nf5 Nd6 Qg6 Ndc8 Qh7 Ba2 Rf6 g8N Bh6 Nge7 c4 b3 Rb6 Rb2 Bf4+ Kd5 Ke1 Rh2 f2 Nf3+ Ke2 Bh1 g2 Ng5 g1R Rg2 Ke1 Rg4 f1B Rh4 Kf2 Rh6 Bd3 Bf3 Rb8 Rb6 Rf1 Rb4 Kg1 Be4 Nc6 Bf3 Be4+ Kc5 Bd5 Be4 Bg8 Bf3 Ra8 Kb6 Na5 Bb7 Rf3 Nac6 Rb8 Ka7 Rf2 Nd6 Rf8 Ndc8 Rf6 Kb8 Rg2 N6a7 Rg4 Ne6 Rgg6 Ng5 Rh6 Nb5 Rb6 Nba7 Rhf6
Rn2k2r/1B2N3/1R1PP1rB/q3q2K/3Qp1p1/1P1pb3/2qb1R1R/2Nb1n1R w - - 0 1 illegal: No proof kernel
7Q/B4r1K/1P4R1/5b2/1k1rNbBn/pqprP2P/B1qp1nb1/1B2NR1B w - - 0 1 illegal: No proof kernel
2r1Bk1q/5Brq/1P3p1R/nb1rQ3/P2KR1p1/2B2P2/1p1BN2b/4nbBN w - - 0 1 legal: proof: d4 a5 c4 e5 g4 h5 gxh5 exd4 b4 b5 cxb5 axb4 Kd2 d5 Kd3 c5 h4 g5 e4 c4+ Ke2 d3+ Ke3 d4+ Kf3 c3 a4 c2 b6 d2 h6 d3 Ke3 g4 e5 b3 f3 b2 h5 Nf6 e6 Ba6 e7 Rh7 Qe2 d1Q Ra3 d2 Nh3 Rg7 h7 Bb5 h8B Nfd7 h6 Nc5 h7 Nc6 Nc3 Na5 Nf2 Rc8 Rh6 Nd3 Nh1 Ne1 Qh2 Qc7 Bc4 Qe2+ Kd4 d1B Bf4 c1R Bd2 Qb8 Qc7 Qh2 Qe5 Be2 Be6 Bed3 Ne2 R1c5 Bd5 Bdc4 Re3 Qh3 Re4 Qh5 Nc3 Bf1 Ne2 Qf5 Qc7 Rg6 Bg7 Qb7 Ke3 Qe5 h8B Rg5 Qb8 Qd7 Bc4 Qdf5 Bf6 Qh7 Be6 Rg8 Bh4 Rg6 Bf2 Qeg7 Qc7 Qgg8 Bg7 Qgh8 Bgc3 f6 Bg1 Rg8 Kd4 Rg7 Bf5 Kf7 e8B+ Kg8 Bfg6 Bd6 Qb8 Kf8 Bgf7 Bh2 Qe5 Rd5+
r3N3/Qq3krB/1p1PrB2/1qn1B2K/1NB2Pb1/1n2P3/1bbp1p2/R2B3R w - - 0 1 illegal: No proof kernel
4R3/2B2rp1/np4nP/R2Nr2N/p3q1PR/2K2Qb1/k1P1bb2/2R1RrbB w - - 0 1 illegal: No proof kernel
r5n1/rP6/1BBp1p1R/Brr3P1/p3Bk2/2NbnNq1/Q2b2P1/1K1nBR2 w - - 0 1 illegal: No possible last move
k7/P1n4N/1pp1R1b1/QPNnpRb1/q4Bnb/4NN2/P1rN4/b3rB1K w - - 0 1 illegal: No proof kernel
1B2R3/PrQBrb1p/2r2kq1/Bn1n2qB/3P4/2P1RpB1/p3Kb1N/1N1r4 w - - 0 1 illegal: No possible last move, all moves rejected
b1rqb1N1/3p2n1/1R1Pk2N/b4N2/NN3K2/P1pRp2Q/1rP5/1Bqr1B1q w - - 0 2 legal: proof: e4 f5 exf5 g5 b4 a5 f4 axb4 f6 Bg7 f5 Bh6 Bb2 Bf8 h4 Bh6 g4 Kf8 Be5 Bg7 Bf4 gxf4 g5 Ke8 h5 Bf8 Qf3 Nc6 Qe2 Ne5 Qd1 Ng6 hxg6 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 c5 Kf3 e5 d4 b5 g7 Kf7 a3 h5 d5 b3 Qc1 b2 Qe3 b4 Rh3 h4 Ne2 b3 Ng3 c4 Nc3 b1Q Na2 b2 Nb4 Qc1 Rb1 Ne7 g8N c3 d6 e4+ Kg4 f3 Kf4 f2 g6+ Ke8 g7 Kf7 Ra1 Bb7 Rb1 Rb8 Nh6+ Ke8 g8B Ba8 Bd3 f1B Ba2 Be2 Bb5 Bh5 Bf1 Bg7 f7+ Kf8 Nc6 Bf6 Nb4 Kg7 f8N Be8 Nh7 Bd4 Nf6 Bb6 Nfg8 Ba5 f6+ Kg6 f7 Nf5 Bb5 Ng7 Ngf5 Rb7 Rf3 h3 Bf1 h2 Rh3 h1Q Rg3+ Kh5 f8N Rb8 Rf3 Rc8 Ne6 Kg6 Nc5 Rh7 Ra1 b1R Na4 Rb2 Bb1 Rh8 Qd2 Rh7 Rd3 e3 Qh2 Rh8 Qh3 Rh7 Ng4 Kf7 Ra2 Rh5 N4h6+ Ke6 Ra1 Rg5 Ra2 Rb3 Rb2 Rg1 Na2 Rbb8 Rb6 Rb7 Ra6 Rb2 Rb6 Rg3 Nb4 Rg1 Be2 Re1 Bf1 Rd1
2K5/n1nB4/p3b1rN/N1pR2P1/rN4np/2N1k1q1/qqPr1NQP/4BR2 w - - 0 2 legal: proof: f4 b5 g4 g5 a4 d5 axb5 f5 e4 dxe4 Bd3 Bh6 Be2 fxg4 Bf1 g3 Qf3 g4 Qd1 Bg5 fxg5 Qd4 Na3 Qd7 Nb1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 b3 h4 d3 g2 b6 g3 b7 e3 Ra4 e2 Rd4 e1Q+ Qe2 Rh6 Nh3 g1N Nf2 g2 Nc3 Be6 Bd2 Qc1 Be1 Na6 b8N Rg6 Nc6 Nh6 Na5 Qb2 Qe4 Qg8 b4+ Kb6 b5 Kc5 b6 Ne2 b7 g1Q Rd7 Nd4 b8N Nb5 Bh3 c6 Qg2 Nac7 Rd8 a6 Bf5 Ra7 Rd7 Rb7 Bh3 Na7 Bg4 Rb4 d4+ Kb6 d5 Kc5 d6 Ra4 Rd8 Qf7 d7 Qg8 Nb7+ Kc4 Bf5 c5 Nc6 Qf7 Nb4 Ng4+ Kf4 Kd4 Na5 Qf1 Rg1 Qc4 Rf1 Qcb3 Rb8 Q3a2 d8N Qf6 Nf7 Qe5+ Kf3 Qd6 Nh6 Qf4+ Ke2 Qg3 Rd8+ Bd5 Bd7 e5 Kd2 e4 Ke2 Be6 Kd2 e3+ Ke2 Qd6 Kf3 Qe7 Kf4 e2 Rf8 Qe8 Rf5 Qb8 Re5 Bc4 Kf5 Bf7 Rd5+ Ke3 Nfd3 Bg8 Bg3 e1R Nf2 Nf6 Ke5 Be6 Kd6 Re2 Ke7 Ng4 Kd6 Qh8 Ke7 Qe5 Kd8 Nc6+ Kc8 Rd2 Nfd3 Qf4 Be1 Qg3 Nf2 Na7+
n1q2bqN/2n4N/8/2pP2p1/1N1p2kq/1BNN3R/bbPBKR1P/1rn1Q3 w - - 0 1 illegal: No possible last move
4N2k/N1Q1nb2/3pbn1B/Np2R2r/P1P4b/nqNPK1N1/1bp4R/1b3B2 w - - 0 1 illegal: No proof kernel
3RK2n/1B1Brn1R/rp5p/kN1nrB2/2PQ3r/1brNq2p/1P1P1B1B/8 w - - 0 1 illegal: No possible last move, all moves rejected
Q3B1q1/n4B1p/RN1P1K1p/q3b1BP/1r4B1/1b1p3q/PNqRb3/1k1n1B2 w - - 0 1 illegal: No proof kernel
3Nq2n/rN1bNP2/6q1/B2n2K1/1rBr1pQN/6p1/1RPpR1P1/q1Nq3k w - - 0 1 illegal: No proof kernel
3k3r/5pB1/2PNpPp1/nnbR2RQ/4qN1q/Nbb1N3/B1PN3n/5bK1 w - - 0 1 legal: proof: d4 c5 dxc5 h5 b4 a5 g4 axb4 e4 hxg4 Qd2 d5 Nc3 b5 Qd1 d4 Nb1 Ra7 Qe2 Rd7 Qd1 Rd5 exd5 Rh6 Na3 Rh4 Nb1 Rh8 f4 d3 Kf2 d2 h4 e6 a4 b3 d6 b4 c6 b2 d7+ Ke7 h5 b3 f5 Na6 a5 Bb7 h6 Nf6 h7 Nc7 a6 Bc8 a7 Ba6 a8N Nb5 Nf3 g3+ Kg1 g2 Ra5 Ng4 Bc4 Nh2 Na3 b1B Nc7 b2 Bb3 Ba2 Nd5+ Kd6 Bc4 b1N Bb2 Bb3 Ne3 Qh4 d8N Kc7 Nb7 Bb4 Nd6 Kd8 Bd4 Bc3 Qe2 Rf8 h8N Rg8 Ng6 Rh8 Nf4 g6 Bg7 d1Q+ Nf1 Qc1 Nd2 Qce1 Qh5 Qe2 f6 Qe4 Nf3 Nd2 Ne3 Qg3 Bd5 Nc4 Nd2 Qg4 Nc8 Qh4 Nd6 Nd4 Rc5 Na5 Bc4 Nb5 Rd5 Ng4 Rh3 Nh2 Rg3 Ba4 Ba2 Bb3 Kf2 g1B+ Ke2 Nf3 Kf1 Bf2 Rgg5 Bg1 Nef5 Bc5 Ne3 Nh2+ Kg1 Nc7 Nh3 Bf1 Nf4 Nb5
r4QqK/PN1Bp2p/1rq1P3/4B3/BB1P1R2/R1Bb1p2/1rb4b/Nbk3n1 w - - 0 1 illegal: No proof kernel
B2q1k1b/5r1r/1Pq2p2/p1pNN1b1/Pr2RbnQ/N1Bb4/2K1P1N1/3R1N2 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 bxc4 d4 Nc6 e6 Ne5 dxe5 hxg4 Kd2 a5 a4 d5 h4 g5 b4 c5 e7 g3 h5 g4 h6 c3+ Kc2 f6 h7 d4 b5 g2 b6 g3 Nd2 Bh6 Rh4 Ra7 Re4 Bg7 Bb2 Bf5 Ngf3 g1Q Ne1 Nh6 Bg2 Ng4 Nf1 Qh1 Qc1 Kf7 e8N Kf8 e6 Rf7 Qf4 Bg6 Bf3 g2 Nc7 g1B Ng2 Be3 Nb5 Bd2 Qh2 Bf4 Na3 Bg5 Qh4 d3+ Kd1 d2 Kc2 d1R e7+ Ke8 Rc1 Rd4 Rd1 Rb4 Ba1 Qh2 Bb2 Qhd6 Ba1 Qc6 Bb2 Rhf8 h8N Bh7 Ng6 Rh8 Ne5 Bg6 Bc1 Rh7 Bd2 Bh8 Nd3 Kd7 e8N Bf5 Ne5+ Ke7 Be1 Kf8 Nc7 Bf4 Nd5 Bg5 Kd3 c2 Bc3 c1B Kc2 Nh2 Bg4 Bcf4 Bh3 Bg6 Bc8 Ng4 Bb7 Bf5 Ba8 Bc8 Rb1 Ba6 Rd1 Bd3+
B5Bk/K3p1p1/1P4nq/1qq1NBPR/Q2p4/B2q4/b1rN2BP/b3bn1R w - - 0 1 illegal: No proof kernel forced: wxDB
b2Rr1b1/bBB2p1K/q1q5/NB1pR1pP/7n/q2P3B/NB1k2P1/1Q1b3n w - - 0 2 illegal: No possible last move
NB2B3/p1N5/r1qr4/k1NnQPb1/PNb1NbK1/2p4b/P3pR2/1q1R3r w - - 0 1 legal: proof: h4 d5 c4 f5 cxd5 g5 e4 gxh4 b3 fxe4 Qf3 Nd7 Qg4 Nb6 Qd1 Na4 bxa4 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Kd7 d4 b5 f4 h5 g4 e5 g5 c5 d6 Kc6 g6 Kb6 d5 h3 d7 e3 Kf3 e2 g7 e1B d6 c4 Nd2 h2 Be2 h4 Kg4 e4 Ngf3 h3 Nb3 b4 Rf1 h1R Rf2 e3 Nfd4 c3 Nc5 b3 Nc6 b2 Qd4 b1Q Qe5 h2 Nb4 Be7 Bb5 e2 f5 Rh6 Be3 Qe8 d8N Ka5 d7 Bd2 Nde6 Ba6 d8N Bg5 Bf4 Ne7 g8N Qc6 Nf6 Nd5 Nfe4 Bc1 Bg3 Bcf4 Nc7 Rc8 Na8 Rd6 Nde6 Rg8 Bc4 Rg6 Bd3 Bc4 Nec7 Qb3 Rd1 Qb1 N5e6 Re1 N6c5 h1B Bh2 Bg2 Bg3 Rh1 Bh2 Bb3 Bb5 Bc4 Bg3 Qa6 Be8 Qc6 Bh2 Bh3+ Kh5 Rdf6 Qd4 Be3 Nb5 Qa6 Bb8 Bef4 Nbc7 Qb5 Qe5 Ra6 Nd6 Qc6 Nde4 Bg2+ Kg4 Rd6 Nd2 Bf1 Nde4 Bh3+
nB2q2r/N1r1p2P/1p1B2RK/N2Q1R1B/pn1r1n2/4P2k/rP2q3/q1BB4 w - - 0 1 legal: proof: c4 h5 g4 hxg4 a4 d5 a5 dxc4 a6 Qd4 Qa4+ Qd7 Qd1 Qd8 f4 g5 Ra4 b6 Na3 g3 Nb1 g4 Ra1 Bb7 axb7 Bh6 Ra3 Qd5 Ra1 Bg5 fxg5 Qd8 d4 Kd7 Kd2 Ke6 Ke3 Kf5 h4 c5 g6 a5 d5 g2 h5 g3 g7 Kg4 h6 f5 d6 f4+ Ke4 f3 d7 c3 h7 c2 e3 c4 Qd2 f2 Nf3 g1Q Qd4 g2 Na3 c3 Qd5 Qe8 d8B Nc6 b8B Nb4 Be2 f1Q Bd1 Qe2 Nd4 Nf6+ Ke5 Qe1 g8B g1N Rh6 Nh3 Bdc7 Nf4 Rg6+ Kh3 Kf5 a4 Kg5 Q1f1 Qc6 N6d5 Bd6 Nc7 Nb3 Ra7 Qd5 Na8 Nb5 Rd7 Kh6 Qg1 Bd2 c1R Na7 c2 Bf7 Rb1 Na5 c1R Ra3 Rcc7 Bc1 Qge1 Rc3 Ra1 Rc5 Qg1 Rf6 Ra3 Bh5 Ra2 Rg6 Qh1 Qd3 Qhe1 Rf5 Q1f1 Be5 Rd4 Bd6 Qc2 Qe4 Qfe2 Qe6 Qb1 Qd5 Qa1
b2B2N1/K1p3q1/P1Nnnbr1/4p1N1/2pRRBk1/b1P1Q3/4Pq1p/q3NN2 w - - 1 2 legal: proof: g4 b5 b4 g5 h3 f5 Bg2 a5 Bd5 axb4 Bc4 d5 gxf5 dxc4 h4 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Qd7 Rh3 Qd5 Rh1 Qd8 f4 Kd7 a4 e5 d4 h5 Kd2 b3 Kc3 b2 f6 Ke6 a5 Kf5 d5 h4 d6 h3 Kb4 g3 g6 g2 c3 Be7 f7 Bf6 f8N Ne7 d7 Qe8 d8N Be6 g7 Rh4 g8N Bd7 Qd2 Kg4 f5 Qg6 Nc6 Nc8 Ne6 Rh6 Qe3 Nd6 Nd2 Qg7 Nf1 Rg6 Nf3 g1B Neg5 b1Q+ Kc5 b4 a6 b3 Ne1 b2 Rh2 Be7 f6 Qf5 f7 b1Q f8B Bf6 Be7 Qf2 Bd8 Bf5 Ra2 Be4 Rd2 Qa1 Rd4 Nd7+ Kb4 Nf7 Kb5 Nf8 Kc5 Nd6 Rg2+ Kh5 Rg4 h2 Bd2 Bg2 Rge4 Bh1 Nb8 Ne6+ Kc6 Nb5 Kb7 Nd6+ Ka7 Bg2 Qd3 Bf3 Bf4 Kg4 Re3 Ba8 Ree4 Qg3 Nc6 Be3 Na5 Bc1 Nc6 Qf2 Qe3 Ba3
N2B2KR/PQ1N4/3nrNp1/1b1q3q/2b2ppp/2R2P1b/5B1P/Nkb3rN w - - 0 2 illegal: No proof kernel
N1b4r/pR3p2/p2BR3/3kn1R1/P2bbP1K/1Pp1q1R1/B3q2n/1RQ2N1b w - - 1 2 legal: proof: e4 d5 exd5 g5 h4 gxh4 c4 Bd7 d4 Ba4 d6 Bd7 d5 Bc8 Qa4+ Nc6 Qa6 bxa6 c5 Bh6 Na3 Kf8 Nb1 Kg7 Be3 Kf6 Bc1 Rb8 d7 Rb6 Bc4 Bf8 Be2 Ne5 Bf1 Rd6 cxd6 Nc6 f4 e5 Kf2 h5 a4 h3 Kg3 h2 Nf3 e4 Nc3 e3 Bc4 e2 Kh4 Qe7 d8R Nh6 g4 Nd4 g5+ Kf5 d7 c5 d6 Ng4 Nd5 Ke4 Nc7 Bb7 Na8 Qe8 g6 Bc6 g7 Ne6 g8R Bb7 Ba2 c4 b3 c3 Ba3 Ng5 Rhb1 h1B Nh2 Ne5 Rb8 Kd5 d8R Be4 d7 Bc5 Nf1 Bd4 Bd6 Bc8 Rb7 Qe6 Rde8 e1Q+ Ng3 Qd1 d8Q Qe2 Nf1 Qe7 Qd7 Qe3 Qh3 Qe6 Qh1 Ngf3+ Kg3 Nh2+ Kh4 Qe2 Rg3 Qe3 Reg8 Qe8 Re1 Qb5 Rab1 Qbe2 Kg5 h4 Qg1 h3 Rg6 Rg8 Kh4 Nhg4 Rg5 h2 Nd2 h1B Nf1 Q3f3 Qe3 Nh2 Qc1 Rf8 Rg6 Qfe3 Re6 Qb5 Re2 Rg8 Reg2 Qbe2 Rg5 Re8 R2g3 Rh8+
7N/1KpnR1B1/p2kP3/bBb5/p1P1P2Q/1B2Bpp1/Nb2q3/rnRBr3 w - - 0 1 illegal: No proof kernel
1QN1NkB1/P2b3p/2RR2pR/p7/p2r1npK/B2n1b1P/rR1P1Rq1/2q5 w - - 0 1 illegal: No proof kernel
4K3/1Q3B2/3qBN2/3R1b2/p1p1qp1p/nP2BN2/pqPrrPk1/1BB3bR w - - 1 2 legal: proof: d4 e5 dxe5 b5 a4 bxa4 h4 g5 e3 gxh4 Qe2 d5 Qd1 Nc6 e4 d4 Ra2 Nb4 Ra1 Nd5 exd5 Ke7 Rh3 Kd7 Rh1 Ke8 Ke2 Kd7 Kf3 h5 Ke4 a5 Kf5 c5 g4 a3 d6 Kc6+ e6 Kd5 g5 h3 g6 a4 g7 h4 d7 d3 e7 d2 e8B h2 Bb5 Nh6+ Kf4 f5 g8B+ Nf7 Qh5 d1Q Qg5 Qf6 d8B Be6 Nd2 Nd6 Ne4 Nc4 Be7 Rd8 Nf3 Qd3 Rd1 h1Q Qg7 Qc3 Bf6 Bd6+ Kg5 Bh2 Kg6 f4 Bef7 Bg1 Bd7 Rh5 Bd4 Re5 Kf6 Qb4 Ke7 Qbc3 Ng3 Re2 Nh5 Ke4 Bde3 Bf5 Bde6 Rd7+ Ke8 Qd6 Rd2 Qh3 Ne5 Qg3 Bg6 Qc7 Qe7 Rd4 Bc8 Qd6 Qb7+ Rd5 Rd1 Qh2 Bcd2 Qg2 Rab1 Bh2 Rh1 Re1 Rd1 Re2 Bc1 Bg1 Nd3 Kf3 Nf6 Qg4 Ne5+ Kg2 Bd7 Qf3 Rd3 Nd2 Bh5 Rd4 Ba2 c4 b3 Qe4 Be6 Qb2 Bhf7 Nb1 Nf3 Rd5 Rc3 Rdd2 Rd3 Nc3 Bb1 a2 Rd4 Nb5 Rd5 Na3
q1n2N1N/4BB2/1pP1p1q1/2p1rppP/Nnn3RQ/bP2k3/N6N/2RKr3 w - - 0 1 illegal: No proof kernel
b1n2Qb1/1pPn1NR1/np1p1pB1/p3br2/B4PN1/1B1K2k1/B2P1rB1/4R3 w - - 1 2 illegal: Other
1N1nk3/N2b4/3P1Rpp/1BK1pr2/1rn1P1Qq/p1B1P3/R1n1pR2/R4R1n w - - 0 1 illegal: No proof kernel
2qBb1nN/1P6/3nBnpR/2Qp3p/2pP1BPb/1R1B4/2p4n/1rK1kB1N w - - 0 2 legal: proof: e4 f5 exf5 b5 b4 g6 c4 Bh6 h4 Bf8 h5 bxc4 b5 a6 Qb3 a5 Qb4 axb4 h6 Ra6 Be2 Rf6 Bd3 Rf7 Bf1 Rg7 hxg7 Bb7 Be2 Ba6 Bf1 Bc8 Kd1 Kf7 g4 Kf6 a4 Ke5 f4+ Ke4 d4 c5 a5 e5 f6 c3 a6 c4 b6 d6 a7 b3 a8B+ Bb7 f5 b2 f7 Bc6 f6 Be7 f8B Qc8 f7 Nd7 Bf4 Ndf6 Na3 b1N Ne2 Kf3 Rh6 Kf2 Ng3 c2+ Kc1 e4 Nh1+ Ke1 Nb5 e3 Ra3 e2 Rb3 Be8 Be4 d5 Bd3 Nd2 Nd6 Bd8 Be7 Nde4 Rh3 h6 f8Q Rh7 Nf7 Nd6 Rf3 h5 Nh8 Nh6 g8B Rg7 Be6 Nhg8 Bh6 Nd7 Beg5 Ndf6 Bf4 Ra7 b7 Ra2 Bhg5 Rb2 Re3 Nf5 Qc5 Nd6 Be5 Nd7 Bgf4 Bh4 Bg5 Ndf6 Bef4 Nfe4 Bd8 Nef6 Ng3 Kf2 Re5 e1N Rf5 Nf3 Nh1+ Ke1 Re5+ Nfe4 Rf5 Nh2 Rf7 Nef6 Rh7 Qc7 Rh6 Qb8 Bd7 Qc8 Be6 Rb1+
1b6/PB1RP1p1/pP1R3R/R1r1kN2/pQ1nb3/K1pr2NR/2p1p1nB/1q6 w - - 0 1 illegal: No proof kernel
2q1bb1q/1n1BK1R1/3Rp1rp/3RN1rr/1PRNPB1P/k3n2b/1qR5/q2Q4 w - - 0 1 illegal: No possible last move
6nQ/1KNRRb1N/pp5q/P7/n1bBNP1q/q4rnB/1Pk1Nr2/1n2b1N1 w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 Qb3 gxh4 Qa4+ Qd7 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 e5+ d6 h5 d4 h3 a4 h2 g3 e3 f3 a6 d5 e4 a5 h4 Qa4 e2 Nd2 e1N Qc2 b6+ Kb4 c5+ Kc4 h3 d7 Qe7 d8N Be6 Qa4 e3 Ne2 Nd7 Nc6 Bf7 Ne4 Nc2 Ng1 e2 Be3 e1Q Rd1 Rc8 Bd4 Na3+ Kd3 Rh7 d6 Nb1 g4+ Kf4 g5 Qh4 g6 c4+ Kc2 c3 Kd3 c2 g7 c1Q Qb4 Rh5 Qc3 Rd5 Kc4 Nc5 d7 Na4 d8N Qa3 Ne6+ Kf5 Re1 Bb4 Nc7 Qch6 f4 Rcd8 Re2 R8d6 Re3 Rg6 Rd3 Rg2 Re3 Rf2 Bg2 Ne7 g8N Rf3 Ngf6 Ng8 Nh7 Rf2 Qd3 Be1 Qc3 Rb5+ Ne6 Rb3 Kd5 Qa2 Kd6 Qa1 Kd7 Qa3 Nc7 Bc4 Kc8 Bf7 Qd2 Rc3 Re2 Rcf3 Kb7 Bc4 Qc3 Bf7 Rd2 Bc4 Ne2 Bf7 Rg1 h1N Ne5 h2 Rf1 Ng3 Bh3+ Qg4 Rd1 h1B Rd2 Bg2 Rh1 Bf1 Rd1 Re3 Nf3 Rd3 Nfg1 Rdf3 Nc1 B1c4 Nce2 Qb4 Bc5 Qa3 Qh8 Bfe6 Rd7 Bf7 Bg2 Qgg5 Bd4 Qgh4 Bh3+ Qg4 Bf1 Qhf8 Rh6 Qh3 N4c3 Qh4 Re6 Qfh6 Ree7 Bce6 Nd1 Ke4 Ndc3+ Kd3 Ne4 Bc4 Bh3 Kc2
2KR1qn1/b1bNpQrk/RPBn1Rn1/q1B4b/2N4p/b2Rr1R1/4P2P/6q1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 Kd2 Kf7 Kd3 Kg6 Ke4 h5 Ke5 d5 f4 a5 c4 h4 b4 a4 b6 g3 c5 g2 f5+ Kh7 f6 g5 c6 a3 b7 d3 c7 g4 b5 d4 f7 a2 Qa4 g3 Qd1 d2 Nc3 d3 Bb2 Bh6 f8R Bg4 c8R Bh5 Ke6 Nd7 b8R Bf4 Na4 Qa5 Bc3 Bc7 Rcd8 Ne5 Rf6 Ng6 Qb3 d1Q Kd7 d2 Nf3 g1B Ne5 g2 Nc4 Ba7 b6 g1Q Bg2 Qdf1 Kc8 d1N Nc5 Ne3 Nd7 Nf5 Bd4 Qf3 Rd1 a1B Bc5 Bb2 Rd3 Ba3 Qa2 Qf4 Bc6 Qh6 Rg3 Qf8 Qb3 Kg7 Qf3 Rh7 Qd5 Kh6 Qf7 Rg7 Rd3 Kh7 Rg3 Qd4 Rd1 Qg1 Rdd3 Bc1 Rd5 Qa2 Nde5 Nd6+ Kd7 Bb2 Rbc8 Bab8 Rd4 Ra3 Rd5 Ba7 Ra8 Re3 Rd3 Bab8 Raa3 Ba7 Ra6 Ne4 Kc8 Qa5 Nd7 Bc1 Bb5 Ba3 Bc6 Nd6+
1r2RqR1/1Q3Bp1/3k1Pb1/p4Bb1/Pn1Nn1n1/r4r1r/6PN/BK2qBnB w - - 0 1 illegal: Other
5n1R/2KBB2r/5bbN/3N1N1R/n2p3p/2bP1prP/nq2rP1q/k1N1N1Q1 w - - 2 3 illegal: No proof kernel
2r2N2/ppq2Q1B/1nBB1Kq1/rbp5/B1P2NR1/1PBR3n/k1P1b3/1q2r1b1 w - - 0 1 illegal: No proof kernel
1Rn1kBBn/2qrb1KR/b2pN3/Q2P1Np1/r1P1p3/1n2n3/4PNNq/3N3n w - - 0 1 illegal: No proof kernel
1b3r2/q2Np2p/1pB2B2/1Q1Prk2/1PbKRqb1/3Bn2P/Nr2n1B1/b2B3R w - - 0 1 illegal: No proof kernel
n4N2/NpnR2r1/4qp1b/P1b1R3/4BN2/2NKBrqn/1PNp1PbQ/4nk2 w - - 0 1 illegal: No possible last move, all moves rejected
bk6/1rNnKbpp/2b2PN1/3pbQq1/1b2n2R/3P1Br1/NR1B3P/Nb4N1 w - - 0 1 illegal: No proof kernel
n6R/1nb2PB1/1kN1pb1K/3R1Qpp/br1NP3/2Nr4/Brb1NN1P/1rq5 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 Kd2 a5 f4 h5 b4 d5 c4 Kd7 e4 Kc7 c5 d3 Ke3 a4 f5 e6 Kf4 g3 f6 a3 Kg5 d2 c6 a2 Ne2 d4 Nbc3 g2 Bb2 Kb6 c7 Ne7 f7 d3 Qa4 g1B Nd1 Bd4 Nf2 d1R Qc2 Bd7 c8N+ Kb7 b6 d2 b5 Nd5+ Ne7 Bf6+ Kg6 Qc7 Qc5 Nc6 Rg1 Qf4 Rg5 Nc7 Nd5 Nd8 Ndc3 Bd6 Qf5 Ra4 Rc1 a1R Rb1 Kb8 b7 Ka7 b8N Na8 Nc6+ Kb6 Ncd4 Rb4 Rc1 Rg8 Kh7 g6 Kh6 Nb7 Rc2 Rab1 Ba1 Ka5 b6+ Ka6 Rc1 Ba4 Bb2 Bc7 Ba1 Nd8 b7 Kb6 b8N Nb7 Nbc6 Rb8 Rc2 Qe3 Ra2 Bc2 Ra5 R1b2 Rd5 Rdb1 Rd8 d1B Rh8 Rg8 Nf4 Rc8 Bc4 Qc1 Ba2 Rd8 Nfe2 Ba4 Qf4 Bdc2 Rd5 g5 Qg4 Rb5 Qf5 R2b4 Bb2 Rd7 Ba3 R4b2 Bf8 R5b4 Bg7 Bd3 Nb3 Rc4 Re5 Bc2 Rc5 Rdd4 Rd5 Rd3 Nbd4 Rcb4
Bn2nkN1/BRN1rp1p/p3p2q/P1b1B1q1/b1q5/2K1P1B1/1RP2Q2/2rB2n1 w - - 0 1 illegal: No proof kernel
5b1K/RrQ1Pp1q/R1R2B2/3rNN1p/2p2n1n/2P2PRb/1r4p1/R1rB2kr w - - 0 1 illegal: No proof kernel
6qk/Bp3B1b/1P1NBp2/3N1r1p/Pn1bpQ2/n1BRrbR1/r2KP2b/4B3 w - - 0 1 illegal: No proof kernel
1NB1qB1n/6R1/p1p1rBn1/P2b2KB/1Nk2B1b/Q1P1pP1p/n2R2b1/1rb5 w - - 0 1 illegal: No proof kernel
2k3NQ/1prrB1RR/1pRp2r1/2PPNq2/n1b2p1b/1B5b/RP3b2/n2K3R w - - 0 1 illegal: No proof kernel
b5n1/Bn4kp/B2Kp1pR/1b2P1bq/1N1N3p/1b2N1PQ/2NrP1Nr/4R2q w - - 0 1 illegal: No proof kernel
2B4k/1QR2Pp1/1b1ppbR1/1b1Rqrb1/1NR1P1PK/3qnNR1/5p2/nrB5 w - - 0 1 illegal: No possible last move, all moves rejected
3B4/1K1p1n2/RBrpB2p/p1p4k/P1PN4/1q1b2b1/BPN2qqB/RQ1r3n w - - 0 1 illegal: No proof kernel
r4BR1/1N2Nr2/qK2pp1N/N1nb4/k2p1p2/1N1PPBR1/pb1pPn2/1Q4n1 w - - 0 1 illegal: No proof kernel
N2r1N1q/R3B2P/1QNb3P/1Prb1bb1/K2B1n1N/4r2R/3rR3/4qk2 w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 Nc6 b4 Nb8 a4 b5 axb5 axb4 g4 Kf7 h4 Ra6 g5 Nc6 d6 Ke8 h5 Ra8 Bc4 Ne5 Bb3 Ng4 Bf7+ Kd7 Bg6 N4h6 gxh6 hxg6 Qg4 Ke8 Qe2 Be6 Qd1 Bc8 d4 Kd7 Kd2 e5 Kc2 c5 Kb3 g5 f4 e4 h7 e3 d5 g4 h6 g5 f6 e2 f5 e1R f7 c4+ Kc2 b3+ Kc3 g3 Kb4 c3 f6 g4 Bd2 b2 Nh3 g2 Ra2 g1R Ra3 c2 Ra1 c1B Bc3 g3 Ra7+ Bb7 Nf4 g2 Qd4 Re3 Qb6 Rd1 Ne6 g1Q Nd2 b1B Rh3 Qe1 Ka4 Rc8 Nf3 Ne7 Nh4 Ng6 Nc7 Nf4 Na8 Rc5 Bd4 Be7 f8B Bf5 f7 Rd2 Ra5 Ba3 Ra7 Bg5 Be7 Qf8 Ra5 Qg7 Ra7 Rd8 f8N+ Ke8 d7+ Kf7 d6 Qh8 Nfg6 Ke6 Nf8+ Kd5 Ka5 Ke4 Ka4 Re8 d8R Kd3 d7 Ke2 Rc8 Bd5 d8N Kf1 Nc6 Bb4 Rd8 Ba3 Rd6 Rd8 Re6 Rcc3 Re5 Bd6 Re6 Rc5 Re5 Rg3 Re2 Re3
RB3Nn1/1n6/1n2Qb2/1P1Rp2R/bP2B3/1kP1BK2/1N2R2q/qb3r1n w - - 0 1 legal: proof: g4 f5 d4 e5 f4 h5 gxh5 c5 a4 b5 axb5 a5 e3 Ra6 e4 cxd4 exf5 Re6 fxe6 g5 Ra3 gxf4 Ra4 Qb6 Ra1 Qd8 Ke2 Ke7 b4 Kd6 h4 Kd5 e7 Kc4 e8R d5 c3 f3+ Kf2+ d3 h6 d4 h5 a4 h7 a3 h6 a2 Nh3 Bf5 Nf4 Bg7 Be3 Bf6 Rh5 Na6 Ng6 Nc5 Bg2 d2 Nf8 d3 Kg3 f2 Qg4+ Qd4 Rd8 d1N Na3+ Kb3 Nc4 f1N+ Kf3 d2 Rd5 Nb2 Re1 d1B+ Re2 Bb1 Qe6 Nba4 Nb2 Nb7 Bh1 Qc4 Ba7 a1Q Bb8 Nb6 Bg2 Ne7 Bh1 Rg8 h8B Rg1 h7 Ng8 Bg7 Ng3 h8R Qh4 Bh6 Qh2 Be3 Rf1+ Kg4 Re1 Be4 Nh1 Kf3 Ka2 R8h7 Ba4 Re7 Kb3 Rc7 Nd6 Ra7 Nb7 Ra8 Rf1+
1b1K3N/4NB2/4r3/PBpP1N2/R3Rr2/1b1PR2p/Qnnk4/1R1qn1b1 w - - 0 1 legal: proof: f4 a5 e4 d5 a4 e5 fxe5 f5 exf5 g5 h4 Bb4 hxg5 Bc5 c4 Bf8 b4 axb4 Ba3 bxa3 cxd5 Kd7 Rh5 Ke7 Rh1 Ke8 Ke2 Ke7 Kd3 h5 Kc4 b5+ Kc5 a2 g6 b4 g7 h4 a5 h3 e6 Kf6+ e7 Ke5 f6 Kf4 f7 c6 Nc3 b3 Bb5 b2 Qc2 b1N Nf3 Nh6 g8B Nd7+ Kd6 c5 Nh4 Na3 Nf5 Ng4 Rhb1 Nf2 Ne4 Ra7 Ng5 Nd3 Ke6 Nb2 e8R Be7 f8R Bd6 Nf7 Rh4 Nh8 Ra6 Bf7 Rc6 Qb3 Nc2 Re7 Ra6 Rfe8 Ne5+ Kf6 Nf3 Qa3 Qb6 Re3 Bb8+ Ke7 Nfe1 g4 Bd7 d3 Qg6 g5 Re6+ Kd8 Qh5 g6 Qd1 Ba6 Ba4 g7 Bb3 g8N Rg4 Re4+ Kf3 Qa4 Rf4 Nge7 Kf2 Bb5 Kf3 Rc4 Ke2 Re4+ Kd2 Rg8 Ne3 Rg3 N3c2 Rge3 Ba7 Rc1 Bb8 Rab1 a1B Qa2 Na3 Rcc4 Nac2 Nh6 Na4 Rb4 Bd4 Nhf5 Nb2 Ra4 Kc3 Rf3 Bg1 Rfe3 Kd2
4k3/K5b1/3br1P1/Rq2PB1R/1n1Q1nNP/2BbB1r1/1p1BN1p1/N1n5 w - - 0 1 legal: proof: c4 a5 b4 axb4 a4 d5 cxd5 b5 f3 e5 f4 exf4 axb5 h5 g3 h4 gxh4 Ra4 h3 Ra8 Na3 g5 Nf3 g4 Ng1 g3 Nb1 Qg5 Qc2 Ne7 Qd1 Qg4 hxg4 Ng8 d4 c5 Kd2 f5 Kd3 f3 Kc4 g2 e4 b3 d6 f2 e5 f4 b6 b2 Kb5 f3 d5 c4 g5 c3 g6 c2 b7 Bh6 Kb6 Bg7 d7+ Ke7 d8N Bh3 d6+ Ke8 Bd3 f1Q Ne2 f2 Bf5 Bg4 Bd2 c1B Na3 Na6 b8B Nf6 Nf7 Nh5 Nh6 Nb4 Ba7 Nf4 Nc2 Rd8 Bc3 Be3+ Qd4 Rf8 Kb7 Rf6 Ra5 Re6 Na1 Bf3+ Kb6 Be4 Ng4 Bd3 Rh3 Rc8 Rg3 Rc4 Bd2 Rc3 Kb7 Ra3 Bb6 Rc3 Ka7 Ra3 Nh2 Rb3 Rg5 Ra3 Ng4 Rb3 Qc3 Bc5 Qd4 Ra3 Rh5 Rb3 Nc1 Qe2 Bc3 f1N Bd2 Ng3 d7+ Kf8 d8B Bd6 Bg5 Ke8 Bc3 Qf1 Ne2 Ra3 Ng1 Nge2 Bc5 Nc1 Ne2 Qf3 Bh6 Qc6 Bg5 Qb5 Bb6 Nh3 Bgd2 Rb3 Qc4 Nf4 Bbe3 Ra3 Qd4 Qc6 Bg1 Bc4 Bf2 Qb5 Bg1 Nbd5 Bb4 Rg3 Bbc3 Bd3 Bge3 Nb4
5kNB/1B1b1n2/2B5/P2bNN2/1RrBR3/qqr2n1p/P1bP3p/4KQ2 w - - 0 1 legal: proof: c4 e5 b4 a5 bxa5 g5 e4 d5 cxd5 c6 h4 gxh4 d6 f5 f4 exf4 exf5 Bg7 Qc2 Bd4 Qa4 Bb6 Qd1 Bc7 dxc7 Kf7 Qe2 Kf8 Qd1 Ke8 g4 h5 f6 b5 g5 h3 f7+ Kf8 g6 h2 Bb2 c5 Bd4 c4 Bg2 b4 Bf1 h4 Nc3 f3 Ba7 h3 Nge2 b3 Nb1 b2 Nc1 c3 Bg2 c2 Nc3 b1B Ne4 Nh6 Ng3 Nc6 Nd3 c1Q Nf5 Qd5 Ne5 Bc2 Bd4 Qa3 Rb1 Bd7 c8B Qdb3 Bb7 Rc8 Rg1 Rc7 Bh1 Rc8 Rg4 Rg8 Re4 f2+ Ke2 f1B+ Ke1 Bfd3 Qf3 Bb5 Qf1 Bc4 Bg2 Bd5 Bf3 Qc4 Rb4 Qcb3 Rf4 Rg7 Bb6 Nd4 Rg4 Ne6 Bd4 Rc4 Bh1 Bde4 Rh4 Bed3 Bhc6 Be4 Rg4 Bd5 Re4 Ng5 Nh4 Ke7 f8B+ Ke8 Nf5 Nhf7 Be7 Rg8 Bf6 Kf8 Bh8 Rg7 Qf3 Nd8 Qf1 Rf7 Ne7 Rf3 Nf5 Rfc3 g7+ Ke8 g8N Nf3+ Kf2 Kf8 Ke2 Nf7 Kf2 N3g5 Ke1 Nf3+
1Bn2bR1/B2qkbP1/R1K1pN2/r2B4/p5r1/3NQ1nR/1q1B1PbP/8 w - - 0 1 legal: proof: g4 b5 a4 d5 c4 c5 cxd5 f5 axb5 h5 b4 cxb4 e4 hxg4 exf5 g6 fxg6 Rh3 Nc3 Rh4 Nb1 Rh8 Ke2 a5 Ke3 g3 Kd4 e6 g7 g2 b6 b3 d6 b2 Kc5 Rh6 d4 Qd7 b7 Kd8 d5 Qa4 Nf3 g1Q Bc4 Qg3 Rg1 Qh3 Qb3 Qh4 Nc3 b1B Rg3 Qg5 Ne5 Rg6 Ne4 Nh6 Rh3 Nc6 b8B Ne7 d7 Nhf5 Bd2 Qa2 Qe3 Ng3 Nf6 Qb2 Nd3 Bb7 Bb3 Nc8+ Kb5 Ke7 d8B+ Kf7 Bb6 Ke7 B6a7 Qh4 Kc5 Rg4 Bc4 Bc6 Ra4 Be8 Ba2 Bf7 Kc6 Bc2 Bc4 Bd1 Ra3 Be2 Ra2 Bf1 d6+ Kd8 d7 Ke7 d8R Bg2+ Bd5 Qg5 Ra3 a4 Rb3 Qf4 Rd6 Qb4 Rh8 Qa5 Rg8 Qd8 Rb4 Rg6 Rh4 Rg5 Rh3 Rg4 Bd4 Ra5 Bda7 Qa2 Kb7 Qc2 Ra6 Qb2+ Kc6 Qd7+
1NR1n1b1/r2p1R2/2Pk4/2Npq3/1r1RpnP1/rPN1r2Q/8/R2K1BB1 w - - 0 1 legal: proof: d4 a5 h4 b5 e4 f5 exf5 g5 a3 b4 axb4 gxh4 d5 c6 Rxa5 cxd5 b3 Bh6 Ra1 Bd2+ Qxd2 Qa5 Qd1 Qd8 g4 h5 c4 e5 f4 Ke7 b5 h3 f6+ Kd6 f7 h4 f8R h2 f5 h3 b6 Qg5 b7 Nf6 Ra4 Nc6 b8N Nb4 Qf3 Ra7 Nc3 Ba6 Rf7 Ne8 f6 Nd3+ Kd1 Nf4 Nge2 Qg7 Rg1 h1R Ng3 h2 Be3 Rh3 Qg2 Rb7 Ra1 Rb4 Qf3 Bb5 Rg2 Rg1 Rd2 h1R Rd4 Rg2 Bg1 Ra2 Qd3 Ra3 Qe3 R1h2 Qd3 Rha2 c5+ Ke6 c6 Kd6 Qh7 Bd3 Qh5 Bh7 Nge4+ Ke6 Qh6 Re3 Nc5+ Kd6 Qh3 e4 Re7 Bf5 f7 Qe5 f8R Bh7 Ref7 Ra7 Rh8 R2a3 Rhf8 Nc7 Re8 Bg8 Rc8 Ne8
1N1qNK1R/1n2r1QN/7n/1q4q1/1q3B1b/1B1R1P1R/PNrP3b/q4b1k w - - 0 1 legal: proof: e4 d5 h4 a5 c4 c5 b4 f5 exf5 cxb4 c5 g5 c6 a4 Qxa4 d4 Qd1 d3 Bxd3 gxh4 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 b5 g4 h5 f3 h3 c7 Kh4 g5 Kg3 f6 h4 g6 h2 g7 h3 f7 b3 Nc3 b4 Nb1 b2 Qb3 Nc6+ Ke4 e5 Bc4 Kg2 Ne2 Ba6 Kf5 e4 Ke6 e3 c8N Bd6 f8N Nh6 Qa3 b3 Nh7 Na5 Nbc3 b1Q Bb2 Nb7 Nd4 e2 Nd1 e1B Nc6 Ra7 Be5 b2 Qc3 Bh4 Bb3 Bf1 Bf4 Qe4+ Qe5 b1Q Nb8 Qb4 g8R+ Qg6+ Qf6 Qg5 Rc1 Bc7 Rc3 Be5 Nf8 Rh7 Nb2 Rc7 Re3 Rc2 Rd3 Ra5 Bg3 Be2 Qg7 Rac5 Rh8 Rc7 Nh7 Rd7 Ra1 h1Q Rc3 h2 Nd6 Qf1 Ne8 h1Q Re1 Bb5 Re2+ Kg1 Rh2 Qe2 Rh3 Rc7 Be1 Bh2+ Re3 Kg2 Bg3 Qa1 Be5 Kh1 Bf4 Qf2 Rc3 Qfc5 Re3 Bf1 Rd3 Qcb5 Nef6 R7c4 Ne8 Ng8 Kf7 Re4 Bd6 Re5 Kf8 Re7 Bf4 Nh6
k1N2qRr/r1b3Nq/3n1BP1/bq1R2R1/6nR/4q1KQ/4NPPB/2bq4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 h4 Bf5 h5 g5 Be2 Bg6 hxg6 Bh6 Bg4 Bf8 Bh3 g4 Qb3 gxh3 Qf3 Qd6 Qd1 Qd8 d4 Kd7 b4 Kc8 d6 Kb7 b6 e5 d7 c5 d5 h5 b5 a5 d6 c4 Bb2 h2 Ra3 e3 Ra4 e4 Be5 c3 Ke2 h4 Nf3 c2 Nfd2 c1B Qb3 h3 Qf7 Nh6 Nc3 Ng4 Rb4 a4 Bd4 a3 Qb3 a2 Bf6 a1Q Nc4 Na6 Re1 Qe8 d8R h1Q d7 h2 Rd1 Bd6 Rd5 Bc7 Rg5 Qa3 Ra4 Rc8 Nd6+ Ka8 Qe6 Rb8 Nc8 Rb7 Rb4 Ra7 b7+ Kb8 Qf5 Nc5 Qf3 Qg1 Qh3 h1Q Rd4 Qa6 Rdd5 Qf7 Rg8 Qf8 d8N Qb6 Ne6 Qc6 Qf3 Qh7 Ng7 Qgh1 Qg3 Q1h5 Qh3 Qe6 Kf1 e2+ Kg1 e1B Ne2 e3 Kh1 Ne4 Kg1 Ne5 Kh2 Nd6 Kg3 Bb4 Rg4 Bba5 Rh4 Ng4 Rg5 Qb3 Rd5 Bcb6 Rg5 Qd1 Rd5 Kc7 b8B+ Kb7 Rg5 Bd8 b6 Ka8 Bc7 Nb7 Bf4 Bc7 Rd5 Nd6 b7+ Kb8 Kf3 Qe5 Bh2 Qb2 Kg3 Qb5 Ng1 e2 Rg5 e1Q Ne2 Bd8 Rd5 Kc7 b8R Qed2 Ra8 Kb7 Rg5 Bdc7 Rd5 Ra6 Ra7+ Kb8 Rb7+ Ka8 Rb6 Qd4 Rc6 Q4d2 Rcc5 Ra7 Rg5 Qd4 Rcd5 Qe3+
1n6/2KP2RP/r1N1qB1Q/1k5B/n1N3nR/3Rbr2/RP1N2bb/b2qb3 w - - 0 1 legal: proof: g4 c5 d4 h5 e4 hxg4 a4 b5 axb5 f5 exf5 d6 c4 d5 cxd5 cxd4 Ke2 Kd7 Kd3 g5 Ke4 a5 Ke5 d3 h4 e6 f4 d2 f6 a4 b6 g3 b7 a3 f7 g4 h5 g2 h6 a2 h7 g3 d6 Kc6 d7 Nf6 f5 Qb6 Be2 Bc5 f8R Ra6 Bh5 Be3 Nf3 g1Q Rg8 g2 Rg7 Rf8 Rh4 Kb5 Qc2 d1N Nbd2 Nc3 Nc4 Qh1 Nfd2 g1B Qe4 Na4 Qf4 Qf3 Qg5 Qd1 Qh6 Nd5 f6 Bh2+ Ke4 e5 f7 Nf6+ Kf5 Rh8 f8R Ng4 Ke4 Qf6 Kd5 e4 Rff7 Qe7 Rf3 Rf8 Rg3 Rf3 Rgh3 Nc6 b8N Bb7 Rg3 Qe8 Kd6 Qe6+ Kc7 Beg1 Nb1 e3 Bd2 e2 Bg5 e1B Nbd2 Be3 Bf6 Nb4 Nc6 Ba8 N6e5 Nc6 Rgh3 Nb8 Rg3 Rf4 Rgh3 Bg2 Nc6 Ba7 Rd3 Bc5 Rc1 Be3 Rcc3 a1B Ra3 Bh3 Ra2 Bg2 Kb7 Rf1 Kc8 Rf4 Kc7 Rf3+
1N1RN1r1/2B2Qq1/3r2R1/qK1Pk2P/nn4r1/N5Pn/3bN1qB/4Bb1n w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g3 gxf4 Ra4 h5 Ra5 h4 Bg2 h3 Ra1 hxg2 Ke2 Kf7 Kd3 Kf6 Kc4 e5 h4 c5 b4 a5 d4 e4 h5 e3 d6 f3 d7 e2 d5 e1R b6 f2 b7 f1Q+ Qd3 a4 b5 a3 b6 a2 Bg5+ Ke5 f6 Ra6 f7 Nf6 Rh2 Re4+ Kb5 c4 Bd2 c3 Na3 c2 Ba5 c1N Be1 Rg4 Ne2 g1N Qh7 Nh3 Rf2 Bh6 f8N Ne4 Ne6 Nc5 Qf7 Qg2 Ng7 Na4 Rf6 Bd2 Rg6 Nd3 Ne8 Nc6 b8N Ncb4 b7 Rd6 Rb1 Qg5 d8B a1Q Bb6 Rg8 Bg1 Ndf2 Bh2 Nh1 Rc1 Bf5 Rc8 Qf6 Rd8 Qg7 Na6 Qa2 b8B Bc2 Bc7 Bd3+ Ka5 Bb5 Nb8 Bd3 Nc3 Bf1 Ne2 Qa1 Kb5 Qc3 Ba5 Qc7 Bb6 Qa7 Bc7 Qa5+
r1RNQN2/2B2N2/1PPnR3/k3rnq1/qq2q2b/b1B5/n5P1/3RK1bR w - - 0 1 illegal: No possible last move
n5R1/1K1q1RPB/5R2/3nQBqn/1k1rn3/N1N1Nb2/br1PP2q/5Nr1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 h4 Qd7 b3 Qh3 Bb2 Kd8 Bd4 Be7 Bf2 Bg5 hxg5 Ba6 g6 Bb7 Qc1 gxf2+ Kd1 Ke7 g4 Ke8 g5 Qc8 Kc2 Ba6 Qd1 Qd8 Kc1 Bc8 Kb2 Kd7 Ka3 Kd6 Ka4 Kc5 Ka5 h5 g7 f5 b6 f3 d6 h4 d7 f4 g6 h3 b7 h2 Bg2 f1R Ra4 f2 Qe1 f3 Rb4 Qg5 d8N Rh4 Ra4 Na6 b8R Rd4 Rbb4 Rb8 Nf7 Be6 Nc3 Nf6 g8B Ne4 g7 c6 Qa1 Nc7 Rb7 Na8 Ka6 Rd1 Na2 f1N Nh6 f2 Nf5 Ne3 Rf7 f1N Bh7 Nd5 Nc3 Nfg3 Bh3 Nh5 Nf3 Rg1 b4+ Kc4 Bg4 c5 b5+ Kb3 b6 c4 Ra2 Kb4 Ne3 Rb7 Bgf5 Rb8 Na4 c3 b7 c2 Nc3 c1Q Ra5 Qb1 Rc5 Qf1 Rc8 Qfg2 Rg8 Q2g3 Rf6 Qc7 Rf7 Qd7 Rf6 Re1 Rf1 h1B Rf2 Rg1 Nh2 Bf3 Nhf1 Ndf4 Nb1 Ba2 Na3 Nd5 Rf7 Rc8 b8N Rc2 Rf6 Rb2 Rf7 Qc7 Rf6 Qh2 Kb7 a5 Nd7 a4 Nb6 Qgg2 Nb1 a3 Nbc4 Qg5 Rf7 Bb3 Rf6 a2 Nca3 Bc4 Nc3 Bb3 Qb1 a1Q Qd3 Ba2 Qc2 Neg3 Qe4 Qd1 Qe5 Qa4 Bc2 Ne4 Rf7 Bh1 R2f6 Bf3 Bb1 Nf2 Bbg6 Ne4 Bf5 Qd7+
n7/2k1qnRn/Rbbbrb1B/2PPBN2/b6P/Q1R1r1bK/6N1/4B1B1 w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 h5 g4 Bb7 gxh5 Bc8 c4 d5 axb5 cxb4 c5 Nf6 Bd3 Ng8 Bc4 dxc4 Kf1 Kd7 Kg2 e5 d4 a5 h4 g5 f4 b3 b6 g4 d5 c3 b7 c2 f6 a4 f5 g3 f7 e4 f6 e3 h6 b2 h7 a3 Bd2 c1N Qf1 a2 Qf4 e2 Qf3 e1B Qf4 Nd3 Qc4 Ra3 Rh3 Kc7 Qb4 Bd6 f8B Bd7 f7 Bc6 Nc3 b1B Nge2 Ne5 Ne4 Bc2 Bg7 B2a4 f8B Na6 b8R Qe7 Nf4 Re3 Qa3 Nf7 Bd4 Nf6 Bh6 Re8 h8B Nh7 Bhe5 Bf2 Rg1 a1B Be1 Bc3 Rb3 Ba5 Rc3 Bb6 Rh2 Nfg5 Rhh1 Nf7 Kh3 g2+ Ng3 Qd8 Qb3 Re6 Qa3 Qe7 Rh2 Re2 Nf5 Bg3 Rgh1 g1B Rg2 B1h2 Bg1 Re3 Ra2 Kd8 Ng2 Nc7 Rc4 Na8 Rg4 Be8 Rg7 Kc7 Rc2 Bec6 Rc3 Re4 Bgd4 Re2 Rf1 Re4 Bg1 Re3 Rf2 Bf4+ Rf3 Bhg3 Rf2 Bg5 Rb2 Ba5 Rb6 Bf6 Ra6 Bb6
qn1r3B/Nbn3Qr/4B1N1/5PBr/1k2N1Rn/1Pn1R2P/1r5q/KN5b w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 g4 hxg4 f4 exf4 e3 f3 Kf2 Qg5 Ke1 f2+ Ke2 Qd8 Kd3 f5 Ra6 f4 Kc2 f3 Ra5 Bd6 Ra1 Bf4 exf4 Ke7 Kd3 Kf7 Kc2 Ke8 d4 Ke7 b3 Kd6 Kb2 g5 h3 c5 f5 a5 b6 g3 b7 g4 Qc2 g2 Nc3 a4 Bd3 f1B Bb5 f2 Ba6 a3+ Kb1 a2+ Kb2 c4 Nf3 g1N Nh4 g3 Ng6 g2 Bg5 Nf6 Re1 a1R Nb1 Nf3 Re3 g1Q Qc3 Qh2 Rg1 Rh5 Rg4 Ne8 Bb5 Qa5 Bd7 Nh4 Be6 Bg2 Bf6 f1R Bh8 Nd7 b8N Bb7 Na6 Nb8 Nc5 Rf2+ Re2 Bh1 Ne4+ Kc7 d6+ Kb6 d5 Kb5 d7 Nc7 Qg3 Kb4 d8B Ra7 d6 c3+ Kc2 Ra8 d7 Qa2+ Kc1 c2 Bg5 Qa4 Kb2 c1N d8N Na2 Qe5 Nc3 Qf6 Qe8 Qg7 R1a7 Nc6+ Kb5 Na5 Kb4 Ka1 Qg8 Re3 Rb2 Reg3 Nba6 Re3 Rd8 Nc4 Nb8+ Nca3 Ba6 Nb5 Qe8 Qf7 Qc6 Qg8 Qa8 Qg7 Bb7+ N1a3 Ra6 Na7 Rad6 Nb1 R6d7 Qg8 Rdh7 Qf7 Qg2 Qg7 Qh2
b2B2r1/1q2r1N1/1qn2qPN/R1Q1B1P1/R1n1B2n/P1qq3k/1rB2R2/3K4 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 hxg5 d5 cxd5 c5 Rh2 c4 Rh1 Bc5 dxc5 Kf8 Rh3 Ke7 Rh1 Ke8 e4 Kd7 g4 h5 d6 Ke6 d7 f5 c6 b5 a3 h4 e5 f3 g6 f4 g5 Kf5 e6 Kg4 c7 c3 e7 h3 e8R b3 Bd2 h2 Re3 c2 Re7 c1Q Nc3 b4 Re6 b2 Ba6 b1Q Ra2 b3 Bc4 b2 Re7 Nc6 Ne4 Qd3 Bb3 b1R Nh3 Nh6 Bc3 Nf5 Rf2 Rh7 Re5 Nh4 Ng3 Re7 Bc2 Rb2 Nf5 Bb7 c8B Qb6 d8B Qa1 Rhf1 h1Q Qc1 Rb8 Bd4 Ba8 Bb7 Qg2 Ng7 Qc3+ Rd2 f2+ Kd1 f3 Ra5 Qh1 Re1 f1Q Be5 f2 Rd4+ Qe4 Rda4 Qfc4 Re3 f1N Rf3 Nd2 Rf7 Qc4d3 Rf2 Na7 Bc6 Qeb4 Be4 Nc6 Nf5 Qb7 Nf4 Q4b6 Ne6 Kh3 Nh6 Rc8 Ng7 Rb8 Bdc7 Rg8 Bd8 Qa2 Qa1 Qf7 Qa2 Qf5 Qc4 Qf6 Qc5 Nc4+
rBK5/3P3k/Qr6/NnN1qRP1/Rqb2PNb/4bb2/3BB1q1/q1b3N1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 cxd5 f5 axb5 fxe4 Qe2 a4 Qg4 Nc6 Qd1 Na5 bxa5 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Ra6 Ke3 Kf7 Kf4 Kg6 Ke5 h5 d4 c5 f4 e3 g4 a3 b6 h3 g5 a2 b7 c4 b8N e2 d6 e1B d5 h2 Nc3 h4 Nge2 h3 Na4 c3 Nc6 c2 Bd2 Rb6 a6 Be6 a7 Qe8 a8N Bh4 Nc7 Nf6 Qb1 Bg7 Qb5 Kh7 d7 Bg8 d8B Ne4+ Kf5 Bd4 d6 Nc3 Qa6 Bc4 Nd5 Bdf2 Re1 Nb5 Ke6 Bc5 Rg1 h1Q Na5 h2 Bc7 Qg2 Rh1 Qf8 Kd7 e5 Ne3 e4 Ng4 e3 Rg1 Qf2 Rg3 c1B Ng1 e2 Ra3 a1Q Ra2 h1B Ra3 Rg8 Ra2 Rb8 Ra3 Ra8 Bb8 Rg6 Ra2 Rf6 Ra3 Qe7+ Kc8 Bf3 d7 Rb6 Ra2 Bd4 Ra3 Qb4 Nc5 Qg2 Ra4 Bdf2 Be3 Bg8 Rd1 e1Q Rd5 Qe2 Rf5 Bc4 Bd2 Qee5 Be2 Be3
4bk2/1Rqrb3/6QR/1q1r2r1/bP2N1BK/1rPN2R1/P2Nq1R1/1qn4B w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 gxh4 Ne2 b5 cxb5 a4 Ng1 a3 b3 c5 Bd3 c4 Nh3 c3 Bc4 c2 Bb2 axb2 Be2 Na6 Ng1 Nb4 Bc4 Nd5 Bf1 Nc3 dxc3 Ba6 Nh3 Bb7 Ng1 Bc8 f4 c1Q Kf2 e5 g4 h5 f6 d5 g5 h3 Kg3 h2 b4 h4+ Kg2 h3+ Kg3 d4 b6 d3 g6 e4 g7 d2 f5 e3 b7 e2 b8N Bd7 Na6 Ra7 Nf3 Be7 Qc2 d1B Nbd2 b1R Ne4 Rb3 Nac5 Nh6 g8B Ng4 f7+ Kf8 Nd3 Qb1 Nfd2 Rh5 Bg2 Rg5 Kh4 Nf2 Rg1 e1R Bh1 Be8 Rg3 Qc7 Bh7 Ra5 Bg6 Qb2 Bh5 Rd5 Qb1 Bc2 Bg4 Rd1 Rg2 Ra3 Rg3 Bca4 Qc2 Rb3 Rg2 Kg7 f8R Qb1 Rg8+ Kf7 Nc1 Nd3 f6 Qb2 Rg6 Kf8 f7 Rd7 Rh6 Qb1 Ne2 Nc1 Nf4 Qb2 Qd3 Qc2 Qa6 Qd3 Qg6 Qe2 Rg3 Qb5 Nd3 Rdd5 Bg2 h1Q B2f3 Qe1 Bh1 h2 Rb1 Qe2 Rb2 Rf1 Rc2 Rd7 Rb2 Rff5 Rc2 Bc5 Rb2 Rfd5 Rc2 Ke7 f8R Bd6 Rf6 Bc5 Rb6 Kf8 Rb7 Be7 Nf3 Qg2 Re2 Qf2 Nfd2 Qe3 Bhf3 h1Q+ Rh2 Qhe1 Bh1 Q3e2 Rg2 Q1d1 Nec5 Qc2 Nce4 Qb1
Bk2bN2/4RqnN/1q2N3/QP1nrnP1/1Prr1B2/3BR3/2n5/1rqKN3 w - - 0 1 illegal: No possible last move, all moves rejected
2brrb2/1R2rN1P/Qq2Nkn1/P3N3/b2Bq2q/BrB1R3/1KNP4/4b3 w - - 0 1 illegal: No possible last move, all moves rejected
8/3bQN2/N4BP1/1R2npNr/2n5/1bnb1BK1/q1q2PRP/Br1rNk2 w - - 0 1 legal: proof: b4 c5 a4 b5 d4 cxb4 axb5 e5 Qd2 exd4 Qd3 Qb6 Qd1 Qd8 g3 h5 Qd3 h4 gxh4 Nf6 Qd1 Ng8 Bg2 g5 Bf1 g4 Ra2 Bh6 Ra1 Bg5 hxg5 Rh5 Bg2 Rh3 Bf1 Rh8 c4 Ke7 e4 Ke6 b6 Ke5 g6 f5 b7 a5 c5 d5 c6 d3 c7 Kd4 e5 d2+ Ke2 b3 e6 g3 Kf3 b2 e7 g2 e8N a4 Ra3 Ne7 Kf4 Bd7 c8N Nbc6 b8B Na5 Bd3 Nec6 Qb3 d1R Ng7 Nc4 Nd2 b1B Kg3 N6e5 Ne8 Rh5 Qb7 Qc7 Be2 Bd3 Rb3 a3 Ncd6 a2 Bf3 a1Q Nf7 Qa2 Nh3 g1N Nhg5 Ra5 Qb4 Rb5 Qe7 Qc6 Nc7 Ne2+ Kg2 Nc3 Bb2 Rb6 Kg3 Qca4 Rb5 Qc2 Ba1 Rb7 Rc5 Rbb1 Ra5 Be2 Na6 Kd3 Rb5 d4 Rg1 Bf1 Bb7 Ke2 Ndf3 d3 Rg2 d2 Ba7 Na3 Bd4 Nc4 Ng1+ Ke1 Ba8 Be2 N1f3+ Kf1 Ne1 Bd3 Bf3 Rdc1 Qa3 d1B Qc5 Qca4 Qe7 Bb3 Nh6 Rd1 Nhf7 Nc6 Bf6 N6e5 Rd5 Qc2 Rb5 Qaa2
1rRbnB2/bPn1P3/3rP3/3RN1q1/1pn1B2q/kBB1N3/3Q4/br1K2N1 w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 gxh4 c4 d5 cxd5 Bg4 Na3 Bh3 Nb1 Bc8 a4 b5 Qb3 Ba3 Qd1 Bd7 Rh3 b4 Rh1 Bb5 axb5 Bxb2 e4 Kd7 d4 a5 g4 f5 d6 c5 g5 h5 b6 Kc6 e6 f4 d7 h3 e5 a4 b7 c4 g6 Kb5 e7 f3 g7 h2 d5 f2+ Kd2 a3 d6 h4 Qb3 a2 Qc2 h3 Qe4 Ka4 Qe3 c3+ Ke2 c2 Kd2 Ra6 Na3 Nf6 g8B Ne8 Bgc4 Bd4 Bg2 Ba7 Bb2 c1B+ Kd1 f1N Nc2 Nd2 Be4 Rg8 Be6 Nc4 Bc3 Qa5 Qd3 Bg5 Ne3 Ka3 Rc1 a1B d8N Rc6 Qc2 Na6 Nf7 Nac7 Qd2 Rb6 Bd7 Bh4 Ba4 Rc6 Bb3 Rg2 Qe1 Rb2 Rc2 Qd5+ Rd2 Qa5 Rd5 Rb6 Qd2 Bf6 Ne2 Bh4 Rf1 h1Q Ng1 h2 Re1 Qg2 Re2 Qg3 Rg2 Qf2 Rg8 h1R Rh8 Bg5 Rf8 Qh4 Rh8 Nf6 Rc8 Nfe8 d7 Qg4+ Kc1 Na6 d8B Ned6 e6 Bf4 Rf5 Rh8 Rcc5 Qh4 Bc7 Rb8 Kd1 Ne8 B7e5 Bh2 Bh8 Bc7 Bhg7 Rd6 Bf8 Bd8 Rc8 Nac7 Rg5 Qe5 Rh5 Qg7 Rd5 Qgg5 Ne5 Rb1+
BK2Rn2/3R1Np1/1Qbn2R1/8/qrbBP3/krN1P1PB/1n4B1/r2r2r1 w - - 0 1 legal: proof: d4 a5 b4 b5 a4 e5 axb5 c5 f3 e4 fxe4 cxd4 g3 h5 Qd2 h4 Qh6 h3 Qf6 a4 Qf2 Bd6 Qf3 Bc7 Qg2 Ba5 bxa5 hxg2 Kf2 Ke7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 Kd6 f5 c4 f4 h4 d3 h5 f3 a6 f2 h6 d2 e3 d1N b6 a3 b7 a2 c5 Qa5 c6 Qb5 Kc7 d5 h7 d4 a7 d3 Bb2 d2 Nf3 g1R Ne5 Nf6 Nf7 Nbd7 b8Q Nf8 Bg2 f1B Qb6 Rb8 a8B Bd7 Bd4 Bc4 Nc3 Ka3 Rh6 Qa4 Rg6 Nb2 Rd1 Rg8 h8R a1R Qa7 Rb3 Qb6 Rb4 Kb8 Ne8 c7 Bc6 c8B Nd6 Bch3 Rb3 Rh5 Rh8 Re5 Rh5 Re8 Rhb5 Rf1 d1R Rff6 Nb7 Rd6 R5b4 Rd7 Nd6
kr2q2n/B1pPN1N1/R5P1/N2P3b/bnB1q1n1/1Nn1RK2/r4Q2/2nB4 w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kd7 e4 f5 Ke2 h5 b4 a5 g6 g2 e5 g3 b6 f4 d6 Kc6 e6 Kb7 b5 a4 d5 a3 e7 h4 e8B h3 Be3 f3+ Kd2 f2 Ke2 h2 Bh6 a2 Qe1 Na6 Nh3 g1Q Nf4 g2 Ne6 Nb4 Be3 Nh6 Ng7 Bd7 Nd2 Nf7 Kf3 Kb8 Be2 f1N b7 Ra6 Bf2 Ne3 Bc4 Ng4 Nb3 Qf1 Qe3 Qb1 Re1 h1B Qc5 Rg8 Re3 Nh8 Qd4 Ra4 Qb2 Ka7 b8N Ka8 b6 Ra5 Bg1 Ba4 Nc6 Qd7 Qf2 Qe4+ Kg3 Rf8 Ne7 Qc6 Bd7 Rb8 Bf5 Qe8 d7 Qe6 Bc2 Qe4 Bd1 Ra7 Rb1 a1N Rb2 Ra5 Ra2 Ra6 Nc5 Nb3 b7+ Ka7 Ra3 Nc1 Nb3 Ra5 Bh2 g1N Ra1 Ra8 b8N Bf3 Nbc6+ Kb7 Ra2 Rb8 Ra1 Ra6 Nca5+ Ka8 Ra2 Nf6 Ra3 Bh5 Ra1 Ng4 Ra2 Nh3 Bg1 Nf4 Ra1 Qc2 Kf3 Nfe2 Bh2 Qd3 Be5 Ra7 Bd4 Nc3 Ra2 Ra6 Ba7 Qe4+ Kg3 Qd4 Nac6 Bb5 Kf3 Qe5 Rc2 Ra1 Ra2 Qd4 Ra4 Ra2 Ra6 Ba4 Nca5 Qe4+
1n4B1/1BRNBb1P/5bnb/2p2N1B/kq3r2/q1r1R1QN/PnK4P/5n2 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 c5 d5 h5 gxh5 d6 Qd4 Qb6 Qd1 Qc6 dxc6 d5 cxd5 Ra6 d6 Ra8 Kd2 f5 e4 b5 c7 Kd7 e5 Kc6 h6 g5 h7 b3 d7 f3 e6 g4 e7 g3 e8B g2 Bg6 f2 Kc3 b4+ Kb2 f4 Nf3 g1B Nc3 Bh6 Qe2 Ra3 Nb5 Ne7 Qc2 Rf8 Be8 Ng6 Ng5 f3 Nd6 Rf4 Bc4 f1Q Qf2 Qh3 Qg3 f2 Rb1 f1N d8N+ Kb6 Bcf7 Ka5 Nc6+ Ka4 Nf5 Be6 Bg8 Bf7 c8B Be3 Bb7 Bd4+ Qc3 Qf3 Nh3 Bf6 Rg1 Qe3 Rg3 Qd3 Be3 Qa6 Kc1 b2+ Kc2 Qa8 Rd1 b1N Rd7 Nbd2 Rc7 Nc4 Bf2 Rb3 Re3 Nb2 Bh4 Qa5 Qe1 Qa7 Qg3 Rc3+ Kb1 b3 Ne5+ Kb4 Nd7 Qa3 Bg5 Ka4 Bh4 Nd3 Bg5 b2 Bh4 Rb3 Kc2 Rc3+ Kd1 Bh8 Be7 b1Q+ Ke2 Qbb4 Kd1 Rb3 Kc2 Bf6 Bf3 Nb2 Bh5 Bc4 Bef7 Rd3 Bd5 Rb3 Bdf3 Bf7 Bb7 Rc3+
4N2R/3BpqB1/R7/1n1r3P/Q2r1PBb/3bPrrB/nk4Kn/1n2R1N1 w - - 0 1 illegal: No possible last move
3rn3/bR2R3/1NKQ4/q3PNb1/1q1bNBBr/2pP2P1/qk2B3/Nbb5 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 fxg4 axb5 e5 fxe5 d5 c4 dxc4 Nh3 g5 Na3 g3 Qa4 g2 Qb3 g1B Rb1 g4 Ra1 g3 Ng5 g2 Nb1 Nc6 Nf3 Nd4 Qc2 Nf5 Qd1 Ng3 hxg3 Ke7 Nh4 Kd7 Nf3 Ke8 e4 Kf7 Ke2 Ke6 b4 c5 b6 a5 b7 h5 b8N a4 b5 a3 b6 h4 b7 a2 Nc3 h3 Nh4 h2 Kf3 Qc7 Rb1 a1Q Nf5 Bd4 Be2 g1B Na6 Qa2 b8N Be7 Nd7 Qca5 Nb4 Rh4 Nb6 Bg5 Nc2 Nf6 Na1 Ne8 Rb5 Bgf2 Re1 Bd7 Rb3 Rd8 Rb1 Ba4 Rb5 Bc2 Rb1 Kf7 e6+ Kf6 e7 Ke5 Rb5 Bb1 Rb4 Nf6 e8B Bg1 Bf7 Ne8 Bh5 B1e3 Bg4 Bf2 Nb5 c3 Nbd6 c4 Nd7+ Ke6 Rb7 c2 e5 Kd5 Bd3 Bc5 Rh1 Ba7 Nb6+ Kc5 Ke4 Kb4 Bf1 c3 Bc4 Bc5 Kd5 Rh8 Kc6 Bg1 Ne4 Bf2 Re1 Rh4 Re3 Bg1 Rd3 Bc5 Rdd7 Bf2 Ned6 Bfe3 Re7 h1Q+ Bf3 Qf1 Bg4 Qf4 Bce2 Qd4 Ne4 Bf2 d3 Bg1 Bd2 Ka3 Bf4 Bf2 Qg1 c1B Nc8 Bfe3 Nb6 Qdb4 Qf2 Bc5 Qd4 Kb2 Qd6 Bd4
R2n1b2/1RP3bQ/3q2PB/KBb1qr2/1N2k1N1/1P3p1b/BNb2Bn1/5q2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d3 c5 d4 cxd4 h3 g5 gxf5 a5 h4 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Ke7 c4 Kd6 e4 Ke5 b6 d5 g6 h5 c5 d3 Kc3 d4+ Kb3 g3 Ka4 f3 c6 h4 b7 d2 c7 g2 f6 d3 f7 h3 Nc3 h2 Nh3 g1B Nf2 Nc6 b8N Rh5 Na6 Nh6 Nb4 Qd5 Ng4+ Kd4 e5 Rf5 e6 Nd8 e7 Qe5 Qc2 d1B e8B d2 Beb5 Be3 Rg1 h1Q Bfc4 Qhh2 Qb3 Bc2 Nd1 Ke4 Be6 Bec5 Ra2 Bfe7 f8B Qhf4 Bg7 Bf8 Rh1 Qd6 Bd4 Qfe5 Bf2 Bd7 Nde3 d1Q Nc4 Qg1 Bf4 Qg2 Rb1 Qf1 Bg8 Nhf7 Bc1 Ne6 Bh6 Nf4 Ra3 Nd8 Be6 Bd3 Qc2 Ng2 Qc1 Qe2 Qh1 Qf1 Qh4 Bc8 Qe7 Bd7 Qh7 Bc8 Nb6 Bd7 Ba2 Bc8 Nc4 Be6 Bd7 Bc2+ Kb5 a4 Ka5 Qdd5 Bb5 Qdd6 Rd3 a3 Ra1 Qdd4 b3 Qd7 Rd6 Qe7 Rb6 Q7d6 Rb7 Bc8 Rc1 Be6 Nb2 Bc8 Bb1 a2 Rd1 a1B Ba2 Qde7 Rd6 Q7e6 Ra6 Q5d6 Nd1 Bag7 Ra8 Qee5 Nb2 Rf7 Ne3 Bh3 Ng4 Rf5
2B4q/pq1RbQ2/P4P2/k2br1KN/1n5N/2rr2b1/1R3PbB/1NbB1B2 w - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 b4 d6 bxc5 Nc6 h4 gxh4 Qe2 Nb4 Qe5 Nd5 cxd5 dxe5 Ke2 Kd7 Kf3 Kc7 Kg4 b5 a4 h5+ Kg5 h3 g4 e4 d4 e5+ f6 e3 a5 h2 c6 e2 a6 Kb6 d6 e1B d7 e4 c7 h4 d5 h3 d6 b4 Bg2 b3 Bf4 b2 Bf3 e3 Bd5 e2 Bc6 Be7 Nd2 b1R Bf3 Rb3 Nb1 Bd2 Ra2 e1B Rb2 Ka5 Bd1 Rd3 Nf3 Bc1 Nh4 Bb7 c8B Bd5 Rf1 Qe8 d8N h1Q d7 h2 Ne6 Bc3 Ng7 Be5 Nh5 Qg2 Rg1 h1B d8Q+ Bc7 Qd6 Rb8 Rf1 Rbb3 Qe6 Rbc3 Qf7 Qe4 Re1 Bg2 Rh1 Re3 Bh2 Bg3 Re1 Qd8 Ree2 Qb4 Red2 Qb7 Rd4 Be6 Rd7 Bed5 Kf5 Qf8 g5 Qg7 g6 Rh7 Kg5 Qh8 g7 Red3+ Nf4 Rh5+ Kg4 Re5 Nh5 Ree3 Kg5 Ba3 Ng6 Ne7 g8B Nc6 Nh4 Be7 Bh7 Nb4 Bf5 Bh1 Bh3 Bhe4 Bf1 Bf3 Ba4 Bg2 Bd1 Re5+
3r4/1NPr3B/n2bN3/r2P1B1b/nb1bKN1p/k6n/4RQP1/3bRBB1 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 c4 e5 h4 exf4 hxg5 d5 axb5 Qe7 Ra4 dxc4 Ra6 c3 Ra3 c4 Ra1 Qc5 bxc5 Bh6 Bb2 Bg7 Bc1 Bf8 Kf2 Ke7 Kf3 a5 e4 f5 d4 h5 g6 h4 b6 c2 c6 Kd6 c7 c3 g7 a4 b7 a3 d5 Kc5 e5 Kb4 e6 a2 e7 Nh6 e8B Na6 b8N Nf7 g8B Ng5+ Ke2 f3+ Kd3 f4 Bc6 f2 Bd7 f3 Ne2 Nh3 Bc6 Bd6 Nd4 Bg4 Qe2 Bh5 Bf4 c1N+ Ke3 c2 Nd7 Nb3 Ba4 c1B+ Ke4 Ba3 Bh7 Rhd8 Nc3 Ra7 Rc1 a1B Nc5 Rd7 Nb7 Nbc5+ Ke3 B1b2 Bac2 Na4 Bcf5 Ra8 Ra1 Rad8 Ne6 Kb3 Kd3 Bab4 Re1 Ka3 Be3 Ba1 Qd2 Bb2 Ne2 Ba1 N2f4 Bd4 Be2 f1R Ke4 f2 Bb5 Rg1 Re2 Ra1 Rhe1 f1B Bg1 Ra2 Bd3 Ra1 Qe3 Ra2 Qf2 Ra1 Rc2 Bfe2 Bc4 Bd1 Bf1 Rc1 Rd2 Rc5 Rde2 Ra5
1N4nR/1PpBQ1B1/3RNb1n/k1P2Pn1/n6r/1n1r1rR1/7b/1B1B1Kb1 w - - 0 1 legal: proof: e4 a5 b4 d5 g4 dxe4 a3 f5 a4 b5 axb5 fxg4 Ra3 a4 Ra2 Bf5 Ra1 Bc8 h3 g5 Qf3 g3 Qb3 g2 Qc3 g4 Qf3 g3 Qd1 Bg4 hxg4 Qd6 Bd3 Qa6 Bf1 Qa5 bxa5 Ra6 Rh2 Ra7 Rh1 Ra8 c4 Kd7 f4 h5 d4 e5 f5 a3 c5 e3 a6 a2 b6 Kc6 a7 e4 g5 e2 d5+ Kb5 d6 h4 g6 h3 d7 h2 d8R Be7 g7 Ka5 Qd7 Rh5 Nf3 g1B Ne5 g2 Nc3 Bf6 Bb2 Rh4 Qe7 Nd7 Nd5 Nh6 Rc1 a1N g8B Nb3 Nf4 Rh3 Ba1 Rf3 Be6 Rc8 Rh8 Rg8 a8B Rgg3 Bad5 Rh3 b7 Rh4 Rc4 Nb6 Qd8 Ng8 Rd4 Na4 Bd7 Rg3 B5c6 Bg7 Rd5 Rf3 Ned3 Be5 Bb2 Bgd4 Rg1 h1N Qg5 Nf2 Ne6 Bh2 Nb4 Ng4 Rd6 N4h6 Bb5 Bde5 Bd3 Bg7 Bc2 Rd3 Kf2 e1N Bb1 Nf3 Qe7 Ng5 Be2 e3+ Ke1 Bd4 Bd1 e2 Na6 Bg7 Kf2 e1R Nb8 Rf1+ Ke2 Rff3 Ke1 Bd4 Ba1 Be3 Bg7 Bd4 Rh1 Bhe5 Rh3 Bh2 Rg3 g1B Ke2 Bf6 Ke1 Bf2+ Kf1 Bfg1+
5bb1/Q2nn1bR/3N4/1B1k1r2/2RNpB1K/4P1Pr/b1bBPR2/nb4B1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 h4 b5 a4 gxh4 axb5 Qd7 Ra4 Qe6 Ra1 Qe3 fxe3 Bf5 Qa4 Bh3 Qd1 Bc8 Kf2 Kd7 b4 Kd6 d4 e5 g3 c5 b6 a5 b5 h5 b7 f5 b6 c4 Bg2 a4 Qd2 c3 Bf3 h3 Na3 h2 Kg2 h4 Kh3 c2 Be4 Be6 Bd3 Rh5 Bb5 Ne7 Nf3 Bg8 Qc3 f4 Bd2 Rg5 Raf1 c1B Rf2 Bb2 Qc8 Ba1 Rc1 Ra6 Rc5 h1B Qg4 Rf5 Rc7 Nec6 Rh7 Ra5 Ne1 Ne7 Nec2 Be4 Qh5 Nd7 Kg4 Ra7 b8B+ Rc7 b7 Nf6+ Kh3 Bd3 Nb1 a3 Nc3 Nd7 Kg4 a2 Kh3 Nb6 Kg4 h3 Qh4 h2 Qh3 Rf7 Kg5 h1B Kh4 Nec8 Ne4+ Ke7 Rg2 f3 Be1 Bb2 Bf2 a1N Rh2 Rc5 Bc7 Bc4 b8Q Ba2 Qa8 Rc3 Qa7 Rd3 Rg2 Rd1 Rh2 Ba3 Rg2 Bg7 Rh2 Rf5 d6+ Ke6 d7 Re1 d8B Baf8 Rg2 Ne7 d5+ Kf7 d6 Ke6 Nd4+ Kd5 d7 Rd1 Bg1 f2 Bh2 f1B Rf2 Bfg2 Bb8 Re1 Bdc7 Rb1 d8R+ Nd7 Ba5 Bf3 Rc8 Bhg2 Rc4 Rh1 Nc5 Be4 Bd2 Beb1 Bg1 Bge4 Nb7 Bec2 Bd6 e4 Bf4 Bh8 Nd6 Bf6+ Kg4 B6g7 Kh4 Rxh3+
7q/1R1bb1Pk/P1Rr1Pr1/q1q1q3/p1N5/1Br2N1r/1RN1nB2/QN1K4 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Nc6 Bc4 bxa4 Bf1 a3 Rh2 a4 Rh1 Na5 bxa5 Bb7 Bb2 Ba6 Bc1 Bc8 f4 Kf7 d4 Kg7 g4 e5 g5 c5 d6 h5 d5 h3 a6 h2 f6+ Kh7 f5 e4 d7 h4 f7 a2 d6 e3 f6 h3 Nc3 c4 Nf3 e2 Nb1 c3 Be3 c2 Bf2 Qe7 d8N c1R d7 Qc5 Nc6 Nh6 d8N Nf5 Nb4 Be7 f8R Nd4 Ndc6 Bd7 Rb8 Rd8 Nce5 Rc3 Nc4 Rg8 Qc1 Rg6 Rb7 Rd8 Rg1 h1Q Nc2 Qh2 Rg2 Qhe5 Kd2 h2 Qa3 e1R Be2 h1Q Bd1 Ree3 Qc1 Ne2 Rh2+ Rh6 g6+ Kg8 g7 Rg6 Rg2 Qh8 N2a3 Qec7 Qb2 Nc1 Nd4 Be6 Nd6 Qb4 Bg3 Qca5 Bb3 Rc2+ Kd1 Qc7 Nc3 Kh7 Be1 Reg3 Nf3 Rh3 Re2 Qca5 Bf2 Qbb6 Rb1 Bc8 Re6 a1Q Qa2 Ne2 Qb2 Rg8 Ndc4 Qbc5 Rc6 Rf8 Qa2 Qb2 Qa1 Rd8+ Nd5 Qe5 Rb2 Rc3 Nb1 Rf8 Nb4 Rd8+ Ke1 Rd6 Nc2 Nd4+ Kd2 Bd7 Kd1 Ne2+
q2B3q/nnpnr3/Rq1P3R/1PqQ1nB1/R2N4/n1P2K2/1kb5/2N2N1N w - - 0 1 legal: proof: e4 a5 a4 d5 f4 dxe4 Ke2 b5 axb5 e5 Ke1 e3 Qg4 e4 Qf3 Ra6 Qd1 Rb6 g3 h5 Ra3 f5 Be2 Re6 Ra1 Re5 Bg4 hxg4 Ra4 Be7 Ra1 Bg5 fxe5 f4 Kf1 f3 Ke1 Bf4 gxf4 Rh4 Ne2 Rh5 Ng1 Rh8 h4 Ke7 b4 Ke6 d4 Kd5 h5 Kc4 f5 g5 b6 f2+ Ke2 f1N e6 a4 c3 g3 h6 g2 d5 g4 b5 g3 d6 a3 f6 a2 e7 Rh7 e8N Ne7 b7 Nec6 f7 Nd7 f8N Re7 b8B Na7 Qd2 Kb3 Nf6 Bb7 Ne6 Qh8 h7 Bd5 Nh3 g1Q Nhf4 g2 Ng4 Bc6 Nd3 Qf2+ Kd1 Ng3 Rh4 Nf5 Rh6 Qg1+ Ke2 Bd5 Ngf2 Bc4 Nf4 Bf7 Ne6 Bg6 Qe1 Kc2 Nh1 Kb3 Nd2+ Kc2 Rb1 a1Q Nf1 Qa6 Qh4 Qc6 Rb4 Qa8 Ra4 Kb1 Ke1 e2 Qh5 Qc5 Nd4 g1Q Bg5 Qb6 Kd2 e1N Ke2 e3 Nc1 Kb2 Qf3 Qc5 Qd5 Nc2 Kf3 e2 Bf6 Na3 Bg5 Rg7 Bd8 Re7 Ra6 Nc4 Rh4 Na5 Rh6 Nb7 Ra4 Qe5 h8R Qb6 Rg8 Qh8 Ra6 Bh7 Rg4 e1N+ Kf4 Nc8 Ba7 Nc2 Kf3 Qc5 Nde2 Na3 Rga4 Bg6 Bb6 Na7 Nd4 Qc4 Nde2 Qc6 Be3 Qb6 Bg5 Qgc5 Nd4 Ng7 Kg3 Bc2 Kf3 Nf5
1NR5/1P1P1r1b/1q2kb1B/2Rqp2q/N2r1bRR/1P5B/1K5Q/2r2Bbq w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 b5 c4 bxc4 f4 g5 a3 g4 f6 Nh6 f5 Nf7 a4 Ng5 hxg5 Nc6 Qf3 Nd4 Qd1 Nb5 axb5 Bb7 Rh4 Ba6 Rh1 Bc8 d4 Kf7 Kd2 c5 Kc2 e5 d5 a5 b3 h5 d6 a4 b6 e3 b7 e2 Na3 e1Q Kb2 c3+ Kb1 c2+ Kb2 c4 Ra2 h4 Bh3 g3 Ne2 g2 Nc3 g1B Qd2 Rh7 Nab5 Qe2 Nd4 Qh5 Qh2 Bg7 Nc6 Qb6 Nb8 Ra7 Be3 c1R Bf4 Be6 d7 Bd5 Bf1 h3 Ra3 Be4 g6+ Kf8 f7 Ke7 f8R Bf6 Bd2 Rf7 g7 Ra5 g8B Rd5 Rd8 Rd4 Rc8 Kd6 Bh6 Ke7 Ra1 a3+ Ka2 Bc2 Na4 c3 Rc5 Bd3 Rb1 c2 Ka1 a2 Kb2 Bh8 f6+ Ke6 Bh7 Bg7 Be4 Bh8 Beg2 Bh7 Kc3 a1Q+ Rb2 Re7 f7 Bf6 f8R Rf7 Rfc8 Qa3 Ra2 Qab4+ Kb2 Qd2 Nc3 Qd3 Ra4 Qdb5 Rb4 Qc4 Na4 Qd5 Qf4 h2 Qd2 Rd3 Rg4 Rd4 Bh3 Be3 Rhg1 h1Q Qh2 Bf2 R1g3 Bg1 Rgc3 Rcd1 R3c4 c1B+ Ka1 Bcg5+ Kb2 Rc1 Rh4+ Rg4 Rc2 B5e3 Rf2 Beg5 Rf5 Rd4 Rff4+ Kd6 Rfg4 Ke6 Bhg2 B5e3 Bh3 Bf4
1RN2B2/p3bBN1/r2Q4/b1KRbn2/kn5P/Pr1pP3/q5B1/N1B1q2r w - - 0 1 legal: proof: b4 e5 Na3 f5 Nf3 c5 bxc5 e4 Nb1 e3 dxe3 f4 Ng1 f3 g4 fxe2 c4 b5 g5 b4 g6 Ba6 Kd2 Bb5 cxb5 hxg6 Ba3 g5 Bc1 g4 Kd3 e1B Kc4 d5+ Kd4 Kd7 f4 g5 h4 b3 a3 g3 f5 g2 b6 Kc6 b7 g4 f6 g3 f7 b2 Nf3 g1B Bg2 Kb5 c6 Be7 f8B Na6 b8N Bh2 c7 Nb4 c8B Nh6 Ng5 Qa5 Nd7 Rb8 Nd2 b1Q Ne6 Qa2 Nb3 Ka4 Rb1 Rb5 Ng7 Nf5+ Ke5 Rh6 Na1+ Qb3 Bb7 d4+ Bbd5 Ra6 Qd3 Bc3 Rd1 Qa2 Ke4 Bd2 Bf7 Rbb6 Qc3 Rb5 Qc6 Bc3 Qd6 d3 Rf1 Rbb6 Rf2 Be1 Rc2 Bd2 Rc5 Rb5 Rd5 Rb8 Bf1 g2 Rb2 g1R Bg2 Rh1 Rb3 Nh6 Kd4 Be5+ Kc4 Qd8 Kc5 Nf5 Rb2 Rbb6 Rb3 Qa8 Rd4 Qf3 Rd5 Qf2 Rb1 Rb7 Rb3 Qe1 Nb6+ Ka5 Nc8 Ka4 Ne8 Nc6 Ng7 Ba5 Rc3 Rb2 Rb3 Rb1 Rb7 Nb4 Rb8 Rb3
7n/Br1nb1r1/NN1R2PB/7N/3pP1K1/2Rr1nP1/Q1r1p2k/B4qbB w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 Kd2 e5 f3 d3 Kc3 e4 Rh4 Bb7 Rh6 e3 Rh1 Be4 fxe4 dxe2 Kd4 Ke7 Ke5 e1N Kf5 d5 c4 Kd6 b4 a5 g6 h5 b6 a4 b5 h4 b7 a3 b6 h3 Ra2 e2 Kf4 f5 Kg3 Ke5 c5 h2 c6 f4+ Kg4 f3 c7 f2 c8N Ra7 Qb3 Nf3 Nh3 Nd7 Qc2 Rh7 Bh6 Be7 Nc3 Qf8 Nb5 Rg7 b8B+ Rc7 Rb2 a2 b7 a1B Rb3 Bd4 Nf4 Bb6 Rg1 h1R Nh5 Rh3 Qa2 Qf7 Ba7 Rc2 Nc7 Be3 b8B d4 Rb6 Qf8 Rd6 Qf6 Nb6 Qf8 Ng3 Qf7 Na6 Qf6 Bg5 Qf7 Bh4 Nh6+ Kh5 Ng5 Rc6+ Bd6 Qc4 Kf4 Qc3 Rb2 Qd2 Nf8 Qa5 Rd2 Qa2 Qf6 Bc7 Nhf7 Bd8 Bc5 Be7 Ba3 Bb4 Nh8 Bc3 Rb7 Rh1 Nd7 Ba1 Be7 Rd6 Rb2 Nf5 Rf3 Rh3 Rc2 Ng7 Qf5 Rg3 Qh3 Kh6 Qh1 Rh3 Kg4 Nh5 Rf7 Rf3 Rg7 g3 Qh3 Bg2 f1R Bh1 Bg1 Ra3 Nf3 Bg5 Rd1 Rc3 Qf1 Bc1 Kh3 Bg5 Rd3 Bd2 Nh2 Bc1 Bf8 Kg5 Nf3+ Kf4 Kh2 Kg4 Be7 Be3 Bh4 Bh6 Be7
n1r4Q/bp1N2pP/2N1B1bP/N1BB1K2/1qr3P1/5n2/R7/RN2rrbk w - - 0 1 legal: proof: c4 e5 b4 a5 g4 axb4 f3 h5 gxh5 Qg5 d4 d5 cxd5 Qg4 fxg4 exd4 Kd2 Kd7 Kd3 Kd6 Ke4 f5+ Kf4 c5 h4 d3 a4 c4 e4 c3 a5 c2 a6 b3 h6 d2 a7 b2 h5 Nf6 h7 Na6 h6 Nc7 Ra3 Nd7 Bc4 Ne5 Ne2 Nf3 e5+ Kc5 Qe1 d1R e6 Rg8 Qd2 Re1 d6 Kc6 d7 Bc5 e7 Bg1 d8N+ Kc5 Bd3 Kd5 e8B Bd7 Ra6 Rc8 Nc6 Na8 Na5 Rc4+ Nd4 Rf8 Bg6 Rfc8 Bf7+ Be6 Bg8 Bf7 Qe3 Re2 Qf2 Re1 Be3 c1B Bc2 Bd2 Bb3 Bb4 Qe2 Bc5 Bf2 Bb6 Qe8 Bc5 Nc6 Bb6 Ra2 Bc5 Na5 Bb6 Nd2 b1Q Be3 Qb2 Nb1 Qd2 Qf8 Qb4 Qe8 Nd2 Kg5 f4 Kf5 f3 Ndc6 f2 Bc5 Nf3 Qf8 f1R Qe8 Nc7 a8N Ba7 Ra1 Bf2 Rh2 Bg1 Rha2 Ne5+ Kg5 Ke4 Nb6 Kf3 Nd7 Bg6 Be6 Na8 Qh8 Kg3 Bc2 Kh2 Bb3+ Rc2 Bbc4 Kh1 Bed5+ Nf3+ Kf4 Be8 Kf5 Rcc1 Be6 Bh5 Bcd5 Rc4 Nf8 Be8 Nd7 Bg6+
2n3B1/3Q2K1/1r1r2N1/rP1n1N1p/2q2P2/pkbqBN2/1B2PbB1/R4R1r w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 e5 d4 exd4 g4 fxg4 h3 g3 Qa4 g2 Qc2 Nh6 Qd1 Ng8 Bg5 Bg4 Bc1 g5 Ra3 Bf5 Ra1 g4 Na3 g3 Nb1 Bg4 hxg4 Bd6 Bf4 Ba3 Bc1 Bf8 Kd2 Kf7 Kd3 c5 Ke4 h5 Ke5 a5 b4 d3 f4 d2 g5 c4 b6 c3 b7 c2 b5 a4 d6 a3 d7 Rh6 Rh2 Bb4 Bb2 c1Q Rh1 Ne7 Nc3 Ra5 Nf3 g1R Ne4 g2 Ng3 Na6 b8N Nc7 Nf5 Nc8 Nc6 Nd5 Nce7 Rb6 Ng6 Qc6 Ra2 Qc4 Ra1 Qg8 d8B Qh7 Qc1 d1R Qd2 Bc3+ Qd4 Ke8 Be7 Kd7 Bc5 Bd2 Qd3 Bb4 Be3 Bc3+ Qd4 Rd3 Nh8 Rd1 g6 Rd2 g7 Qg6 Rh4 Rh1 g8B g1B Bg2 Qg3 Ng6 Bf2 Nd6 Kc7 Ke6 Qh3+ Kf7 Qf5+ Kg7 Qfd3 Nf5 Rdd1 Nh6 Kd6 Nf5+ Kd7 Rg4 Qd2 Nd6 Nf6 Bh3 Qc2 Qc5 Rd4 Qe5 Q2d3 Qe6+ Kc7 Nf5 Rd7+ Kh6 Nd5 Rgg1 Rd8 Rgf1 Rd7 Nfe7 Rd8 Qf5 Kd6 Bg2 Rd7 Nc6 Rd8 Ncd4 Kc5 Kg7 Kb4 Qg4 Rdd6 Qd7 Bce1 Nf5 Kb3 Bf7 Bb4 Bg8 Bc3+
1n3q2/6PB/N1n1Qb1R/1kBR4/bPn2ppN/3r3q/P1R5/KN1R1n1r w - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 g5 f4 b4 fxg5 h5 b3 hxg4 c3 a5 cxb4 a4 Ba3 axb3 Bb2 Bg7 Bc1 Bf8 Nc3 c5 Kd2 f5 h4 d5 e4 Kd7 e6+ Kc6 g6 b2 Kc2 b1N Kb2 c4 e5 d4 h5 f4 g7 d3 h6 d2 h7 Qd7 e7 Qa7 e8R Qe3 e6 Qg3 e7 Ra3 Qe1 Bd7 Nf3 d1Q Rh5 Nd2 Be2 Nf1 Be3 Qd6 Rd1 Qc5 Nb1 c3+ Ka1 c2 Bf2 c1N Bd3 Qh4 Bg6 Rd3 Rc8+ Kb6 e8N Ne7 Be4 Ba4 Rd5 Kb5 Bg6 Qh6 Qe6 Qh1 Rd4 Qd6 Rc2 Nec6 Rd5+ Qc5 Be4 Be7 Bd4 Bf6 Nc7+ Kb6 Na6 Nb3+ Kb2 Na5 Ka1 Kb5 Bf5 Rf8 h8R Nc4 Rh4 Rh8 Be4 Rh5 Bh7 Rf5 Rh6 Rh5 Ne5 Qg2 Nf3 Rh1 Nh4 Qh3 Rg5 N4e5 Bg1 Qf8 Bc5 Nc4+ Re5 Bg5 Rd5 Bf6+
1N4B1/1Q2nR2/r3B3/qp1b1RPp/R2KN2R/1qP1rPr1/1qk2B2/3b3b w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 g3 f5 b5 Bh6 e3 f4 exf4 g4 b6 Bg5 hxg5 Na6 Rh4 Nb4 Rh1 Nd5 f5 Nf4 gxf4 axb6 Ba3 b5 Bc1 b4 Kd2 Kf7 Kd3 b5 a4 h5 a5 e5 c3 d5 a6 b3 a7 b2 f6 Ke6 f7 Kf5 Rh3 e4+ Kc2 g3 Be3 g2 Ra6 d3+ Kd2 d4 Ne2 g1R Ra4 Be6 Rh4 Ne7 f8R+ Bf7 Qc1 Qa5 Bh3+ Rg4 Qg1 Re8 a8B Rh6 Qh1 Ra6 Rh8 Bc4 Bd5 Ba2 Bg8 Bd5 Na3 b1B Rh7 Bba2 Nc4 Bc6 Ne5 Bad5 Nd7 Bb7 Kd1 d2 Kc2 d1B+ Kd2 d3 Nb8 Bbc6 Bc5 Bb7 Ke3 d2 Kd4 e3 Ba7 Bc4 Qc6 Bd5 Qc7 Bbc6 Qb7 Bh1 Bc5 Bcd5 Rf7+ Rf6 Ng1 e2 Nf3 e1Q Ba7 Qe2 Bb6 B1b3 Ba7 d1Q+ Nd2 Qb1 Ne4 Bd1 f3 Qb3 Bb6 Qeb2 Bc5 Kg6 Ba7 Ra6 Bc5 Rg1 Be6 Rg2 Rf8 Rg3 f5+ Kg7 f6+ Kg6 Bef7+ Kf5 Ba7 Rg4 Be6+ Kf4 f7 Q2c2 Kc5 Ke3 Bb6 Ke2 Kd4 Rg3 Bf5 Be6 Nf2 Kd2 Ke5 Rd8 Ne4+ Kc1 Bf2 Rd3 Bh3 Re3 Kd4 Bc4 Be6 Bd3 Rd8 Qd2 Rd5 Qdb2 f8R Bc4 Rdf5 Bd5 R8f7 Kc2
q2b3R/1P2R3/4p1nq/2r2qPb/4B3/kP2B2R/Nb1N1pRN/2n1nQ1K w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 Kd7 a4 b5 axb5 Nh6 e4 Ng8 h4 gxh4 d6 Ke6 d7 Kd6 f4 a5 f5 Bg7 d5 Bd4 Kd2 Bf2 Qg4 Ra6 Qd1 Ke5 f6 Kxf6 e5+ Kg7 Kd3 Rh6 Kd2 Rd6 exd6 Kf8 Ke2 f5 Kf3 h5 g4 c5 Kg2 a4 b3 c4 b6 h3+ Kh2 f4 g5 f3 b7 c3 Ra3 c2 Qe2 h4 Qe3 Nc6 Nc3 Ne5 Qd3 Bb6 Ne4 f2 Qb5 Nd3 Nd2 Ne1 Bb2 c1N Ra1 a3 Nb1 a2 Bd3 e6 Be5 Ne7 Bd4 Ng6 Nd2 Bc7 Rb1 a1B Ngf3 Bb2 Be3 Qe8 d8N Bd7 Nc6 Qa8 Be4 Bd8 Qe2 Be8 d7 Kf7 Nb4 Ke7 Qd1 Kd6 Na2 Rf8 Rg1 Rf5 Kh1 h2 Rg2 Re5 Qe2 Rf5 Qf1 Bf7 Nd4 Kc5 d6 Re5 Nc3 Kb4 Na2+ Ka3 N4f3 Rc5 Ra1 Be7 d8R Bef6 Rb8 Bd8 d7 Nh8 Bf5 Bh5 Be4 Ng6 Rb1 Bd4 Rc8 Bb2 Rc7 Nc2 Qc4 Be7 d8R Bg4 Rh8 Bd8 Re7 Ne2 Rbg1 Nc1 Rg3 Ne1 Qd3 Nc2 Kg2 h1Q+ Kf1 h3 Qe2 Qh2 Rh1 Ne1 Rgg1 Qhb8 Rg3 h2 Rhg1 Nc2 Kg2 Qf4 Qf1 Qf8 Rgh3 Qh6 Kg3 Ne1 Rg2 Qf8 R3h4 h1Q R4h7 Qh5 Rh6 Bh3 Kh2 Qf5 Kh1 Bg4+ Nh2 Qh3 Rh4 Bf3 Rf4 Be2 Rf3 Qh6 Rh3 Bh5
r2Rr3/1K2k2B/rP4nP/2q1p1N1/3Br2R/2PbNB2/q1b2p1B/3NQr2 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 d5 g5 d3 e3 d2+ Ke2 h6 Na3 hxg5 Nb1 g4 f4 d4 Ra3 d3+ Kf2 Nc6 Ra1 Nd4 f5 e5 Ra4 Bb4 Ra1 Ne6 fxe6 Bf8 Nc3 Bc5 Nb1 Bd4 exd4 Bb7 Qf3 Ba6 Qd1 Bc8 Ke3 g5 Ke4 a5 b4 g3 h4 g2 c3 f6 h5 a4 e7 a3 b6 g4 b5 g3 d5 a2 b7 Qd6 b8B Rh6 Ba7 Bd7 Qe1 d1Q Bf4 d2 Rh4 Qg4 Be2 d1B Na3 Kf7 e8B+ Ke7 Nc2 Qc5 Bg6 Rh8 h6 Qe6 Nh3 g1R Ne3 g2 Bf3 Rf1 Bh2 g1R Bh7 Bc6 Rb1 a1R Nf2 Ra6 Bb6 Bb3 Rd1 Bc2+ Rd3 Rg2 Nfd1 Re2 Ba7 Kf8 Bb6 Ne7 Ba7 Bd7 d6 Ng6 Bb6 Be8 d7 Qa2 d8N Ke7 Ne6 Bf7 Ba7 Rhe8 Ng5 Bc4 Bb6 Qc7 Bd4 Qc5 b6 Rg2 Ng4 f5+ Ke3 f4+ Ke4 Re2+ Nge3 Qc8 Bg2 f3 Bh1 f2 Bf3 Ba4 Rd2 Bab3 Rd3 Bb5 Rd2 Bc2+ Rd3 Qa5 Kd5 Qe6+ Kc5 Qea2 Rd2 Bbd3+ Kc6 Qc5+ Kb7 Ba4 Rb2 Bac2 Rb5 Qca3 Rd5 Qb4 Rd8 Qc5 Ng2 Re4 Nge3 Qb2 Nh3 Qb1 Ng5 Qa2
5r2/RbN1b1p1/p3qPbR/1N1B1n1b/P6R/N1q2n2/P2kBQ1N/2b2K2 w - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 b5 gxh5 a6 b3 Ra7 Na3 Rb7 Nb1 Rb6 Qc2 Rd6 Qd1 Rc6 d4 e5 e4 f6 Bd2 Rc4 Bg5 Ra4 bxa4 Kd7 Bf4 exd4 e5 Ke7 e6 Ke8 Be5 fxe5 f4 Ke7 h4 Kd6 e7 Kc5 e8B Kb4 f5 c5 d6 c4 f6 e4 h6 c3 d7 d3 h5 e3 h7 c2 h6 c1B Bf7 e2 Na3 Kc3 Nf3 b4 Rb1 b3 Bd5 b2 Nh2 Qb6 d8N Be7 Ne6 Nc6 Nc7 Nd4 Kf2 d2 Qe1 Qb3 Kg1 Qb4 Qf2 e1Q Kg2 Qe3 Be2 d1B Kg1 Qe6 Kf1 Bf4 Rc1+ Kd2 Rc5 b1B Rb5 Qc5 Rb7 Qc2 Ra7 Bb7 Rg1 Qcc6 Rg4 Bg6 Rh4 Bb4 Qg1 Ne7 Qf2 Ra8 h8N Rf8 h7 Nef5 Nf7 Be7 h8R Qc3 Nd6 Nf3 Ndb5 Bfd6 Nc2 Ba3 R8h6 Bc1 Nca3 Ng1 Bec4+ Ne2 Qg1 Ned4 Qg3 Bg4 Be2 Nf3 Qf2 B4h5
2N1q3/B1r2Bq1/1r2rk1B/4R2P/P3P1nN/1Q3B1K/Rp2bn1p/1r1R1n2 w - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 h4 axb4 Nf3 h5 Ng1 g5 hxg5 h4 g3 h3 g6 Bg7 Rh2 Bf6 Rh1 Bh4 gxh4 Qg5 Qb3 Qf6 Qd1 Qd8 Kf2 Ke7 a4 f5 d4 b5 e4 c5 h5 c4 d6+ Kf6 d5 h2 Kg2 f3+ Kg3 b3 g7 c3 d7 b4 d6 c2 Nd2 f4+ Kh4 f2 Ba6 f1Q Kg4 b2 Nh3 b1R Ng5 f3 Nc4 b3 Nb6 b2 Be2 f2 Ra2 Ba6 Nc8 Nc6 Nf3 Qe8 d8R Nb4 d7 Nd3 Bh6 c1R Qb3 Rc7 Nh4 Rb8 Bf3 Qg1+ Kh3 Qg5 Rc1 f1N Rc5 Rb6 Re5 Qgg6 Bf4 Nh6 g8B Ng4 Bh6 Qg7 Bf7 Qe7 Rg8 Rh7 d8B Rcc6 Bc7 Re6 Rd8 Qe8 Bb8 Bb5 Ba7 Ndf2+ Kg2 Be2 Rd1 Qgf8 Bg6 Rc7 Bf7 Nh1 Kh3 Qfe7 Bg8 Qg7 Bf7 Nhf2+
6R1/qqR2r2/N4NN1/Kpp4P/4Q3/BRP1nr2/1bqNPkn1/3B1r1q w - - 0 1 legal: proof: d4 a5 h4 g5 b4 e5 dxe5 f6 exf6 axb4 g4 h5 Qd2 b6 Qd6 Bb7 Qd1 Bf3 Nh3 gxh4 Ng1 h3 Bb2 h4 Bc1 Be4 Qd6 Bg6 Qd1 Bh5 gxh5 Bg7 Bg5 Bh6 Bc1 Bf8 Kd2 Kf7 a4 Ke6 f4 Kf5 c3 Kg4 a5 Kg3 f7 d5 f5 b5 f6 d4 a6 b3 a7 d3 Ra4 h2 Rb4 b2 Bh3 Nd7 Be6 h3 Bb3 Rh7 Qc2 Nc5 Rc4 Qb8 Nf3 Nh6 Ne5 Ng4 Nd7 Ne6 Rc5 Be7 f8R Kf2 f7 Ne3 Nf6 Nf4 Rg8 Nfg2 f8N Rf7 Ng6 c6 Rd1 h1Q Rg1 Qb6 Rd1 Rd8 a8N h2 Nc7 Rdf8 Na6 Qa7 Rc4 Ba3 Ba4 Qb8 Rb4 Qg1 Rb3 h1Q Rf1+ Kg3 Rf5 Qb7 Rc5 Kf2 Rc4 Qgh2 Rc5 Qhb8 Rc4 Q8a7 Rc5 Nf1+ Kd1 d2 Qe4 Qe7 Kc2 d1R Nd2 Qeb7 Kd3 b1Q+ Kd4 Nfe3 Bb2 Rf1 Bc1 Bb4 Ba3 Qaa8 Rc4 Bd6 Rc5 Qc2 Rc4 Bf4 Kc5 Qaa7+ Kb4 Bg5 Ka5 c5 Rd4 Bh6 Rd7 Bg5 Nh7 Rf3 Nf6 Rf7 Rc7 Nd1 Nb1 Bc1 Nd2 Nde3 Rb1 Qa2 Bd1 Qc2 Rb3 Bb2
1n5n/nqN1b1QP/b1R2P1p/B1n1qr2/4BB1K/Pk1N4/N3pq2/3N3R w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 h4 gxh4 g4 Ra6 g5 b5 g6 Rf6 Bb2 h6 Ba3 Rf7 Bc1 Rfh7 gxh7 Qd7 Qf3 Qd6 Qd1 Qd8 f4 Kd7 Kf2 Kd6 d4 c5 a3 e5 f6 c4 f7 h3 Kg3 c3 f5 c2 Rh2 b3 Rg2 h2 Rd2 h1Q Ne2 e4 Nec3 e3 Rg2 b4 Na2 b2 Bd3 b3 Qg1 e2 Be4 Qe7 Nbc3 b1Q Bf4+ Qe5 Nd1 Be7 f8N c1N Ne6 b2 Nc5 Nb3 Nd3 Nc5 f6 Ba6 Rh2 Qg2+ Kh4 Qf2+ Qg3 Qc2 Rh1 Qb3 Rb1 Qb7 Rc1 b1N Rc2 Nc3 Rc1 Qg1 Qg7 Nb5 Rc4 Na7 Rc1 Kd7 d6 Ke6 d7 Kd6 d8B Qf2+ Kh3 Ke6 Ba5 Kd6 Bg6 Kc6 d5+ Kb5 d6 Ka4 d7 Kb3 d8N Bd6 Rg1 Ne7 Rh1 Re8 Be4 Ng6 Ne6 Nh8 Nc7 Be7 Kg4 Rd8 Rc2 Rd5 Kh3 Na4 Rc6 Nc5 Kg4 Qd6 Kh3 Rf5 Kg4 Qe5 Kh3 Qg2+ Kh4 Qf2+
1N2n1qn/n3PbNp/B3r2b/1RbR3Q/1pR2b2/4B2P/1KP3k1/q4RN1 w - - 0 1 legal: proof: d4 b5 e4 c5 b4 e5 dxe5 f5 a4 cxb4 axb5 Kf7 Ra6 Ke7 Ra1 Ke8 f4 fxe4 g4 a5 g5 Ra6 f5 Rf6 gxf6 Ba6 Bd2 Bb7 Bc1 Bc8 Kd2 Kf7 h3 g5 b6 d5 b7 d4 Na3 g4 Rh2 g3 Re2 e3+ Kd3 a4 Bd2 g2 Qc1 Be6 Nf3 g1B Nc4 a3 Ra2 Nd7 b8N Bh6 Ne1 Nf8 Qd1 Ng6 Nf3 Qc8 Rh2 e2 Be3 e1B Rd2 Bg3 Be2 B1f2 Ng1 Bgf4 Bf1 Qe8 Qh5 Qd8 Ke2 d3+ Kd1 Qd5 Ra1 a2 Kc1 Qg2 Rd1 d2+ Kb2 Qd5 Be2 Qg2 Rf1 Qa8 Rad1 Bd5 Ba7 Bc5 Ne3 Bc4 Nd5 Bb3 Nc7 Bd5 Bc4 Be6 Ne8 a1Q+ Kb3 Bd5 e6+ Kf8 f7 Be7 Be3 Nf6 Rc1 d1N Nc6 Nc3 Ng7 Nb5 Rcd1 Na7 Rd2 Qc8 Nb8 Bed6 Rdd1 Ke7 f8R Qd8 Rd3 Qc8 Rd8 Re8 Rd4 Nh8 Re4 Nd7 Rd4 Kf6 Re4 Re7 Rd4 Ke5 f6+ Bfg5 f7 Nf6 Rd7 Qg8 f8R Ne8 Rb7 Bc5 R8f4 Rf7 e7 Rf6 Rb6 Bf7 Rd8 Re6 Ba6 Rd6+ Rc4 Re6 Qg4 Bf4 Rb5 Kf6 Qd1 Kg5 Rd5+ Kh4 Qe2 Kg3 Qh5 Qa4+ Kb2 Kg2 Qh4 Qa5 Qh5 Qa1+
q2b1N2/1P2qqP1/3N1B2/P2B1q2/nR1pRK1N/Q1nr3N/1b4bp/6Bk w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 axb5 cxd4 Bb2 a4 Bc1 Ra5 bxa5 Bh6 Ba3 Bg7 Bc1 Bf8 Kd2 Kf7 f4 Kf6 g4 h5 c4 e5 c5 d5 b6 d3 Ke3 h3 c6 h2 c7 d2 b7 d4+ Kf3 e4+ Kg3 e3 Bb5 h4+ Kf3 e2 Na3 e1Q Rb1 h3 Rb2 Nd7 Nc2 a3 Bc6 a2 Bd5 a1B Ne3 Nc5 Rb4 Na4 Qb3 Bb2 Ng2 Qee7 Qa3 d1Q+ Kg3 Qde8 Nh4 Qc2 Be3 Q8f7 Bf2 Bd7 c8N Bc6 Nd6 Bh6 Be3 Bg5 Bf2 Qc5 Be3 Qa7 Bf2 Qa8 Kf3 Kg7 f6+ Kh6 f5 Rh7 Ng2 Bh4 g5+ Kh5 g6 Rh6 g7 Rg6 Nb5 Rg3+ Kf4 Re3 Nd6 Rd3 Bb3 Be4 Bd5 Bf3 Ne1 Bg2 Nef3 Qg6 f7 Nf6 f8B Ne4 f6 Nec3 f7 Bf6 Be3 Qf5+ Kg3 Bg5 Nh4 Bf6 Ngf3 Bg5 Re1 h1Q Ng1 h2 Nh3 Qhf1 Re2 Qee6 Re1 Bd8 Be7 Qee4 Bg5 Qe7 f8N Qff7 Bf6 Qf5 Nf3 Qfd7 Kf4 Qdc8 Nfg5 Kh4 Bg1 Qc5 Re4 Qb5 Kf5+ Kg3 Nf3 Bf1 Rb3 Kg2 Rb4 Kh1 Nh4 Bg2 Kg5 Qbd7 Kf4 Qf5+
q1r3r1/1PbNrPkp/1Nb1b3/8/2n1b2R/NBP1R1p1/1qQ2N2/1B2B1K1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 h4 g5 Qe2 g4 Qd3 Na6 Qd1 Nc5 Bg5 Ne4 Bc1 Ng5 hxg5 Bb7 Ra2 Bd5 Ra1 Bxg2 b4 Kf7 f4 e5 Kf2 a5 c3 d5 b6 g3+ Ke2 a4 g6+ Kg7 b7 e4 b8N e3 b5 a3 b6 a2 b7 Be4 Qc2 Nf6 Nh3 Ne8 Na3 Bd6 Nd7 Rg8 Nb6 Bc7 Bd2 Rc8 Re1 a1Q Nf2 Qb2 Rh4 Nd6 Bg2 d3+ Kf1 e2+ Kg1 d4 f6+ Kh8 f5 Nc4 f7 Kg7 f8N Qe8 Bf4 d2 Nfd7 d1B Bd2 d3 Bf3 Bc6 Be4 Qd8 Qb1 Bda4 Qc2 Bb3 f6+ Kh8 Rf1 e1R Bf5 Re5 Re1 Re7 Re3 Qf8 Be1 d2 Be4 d1B Bd3 Qd8 Bf5 Bdf3 Be4 Rf8 g7+ Kg8 Bf5 Kf7 Bd3 Bfe4 g8B+ Kg6 Bd5 Rg8 f7 Kg7 Be6 Na5 Bec4 Ba2 Bb3 Qf8 Ba4 Be6 Bb3 Nc4 Qd2 Ra8 Bb1 Qb8 Qd3 Qa7 Qd2 Rac8 Qc2 Qa8
8/n1BbRr2/B1BN4/rb2Nnb1/p3Pp1r/RK1P2N1/1BPkn3/1Q2b3 w - - 0 1 illegal: No possible last move
3r2k1/3KP1N1/PRp1r3/2P3n1/RQ2n3/r1N1p1NB/nr1B1B2/2Nb1n1q w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f5 e4 axb4 g4 fxe4 f4 h5 gxh5 Bd6 e6 Be5 fxe5 Ra4 Qd2 Ra5 Qd1 Ra8 Kf2 Kf8 Ke3 b5 Kf4 d5 Kf5 g5 a4 g4 h4 c6 c4 d4 h6 d3 h5 b3 h7 d2 c5 g3 a5 g2 h6 b4 Qe1 d1N Nc3 b2 Bd2 b1R Nge2 g1N Nc1 b3 Ra4 b2 Bh3 Nf6 Rh2 Rg8 h8B Na6 h7 Nb4 a6 Rg6 Rf2 Ra1 Rf4 b1R Rh4 Bb7 e7+ Kf7 e8N Na2 Ng7 Nf3 Rg4 Ng5 e6+ Kf8 Rg3 Rb2 e7+ Kf7 Ke5 Bc8 Rg1 Qe8 Kd6 Ne3 Rg4 Bd7 Rb4 Be6 Rb6 Bb3 Rh4 Bd1 Kc7 Nh5 Rg4 Qb8+ Kd7 Nf1 Qh4 e3 Ra4 Rb5 Qb4 Qh2 Be1 Nhg3 Bf2 Qg1 Qb1 Ne2 Nf5 Nfg3 Nd5 N3e4 Bc3 Qh1 h8N+ Kg8 Ng7 N2g3 Bd2 Re6 Ng6 Nac3 Ngf4 Nf1 Nfe2 Ra3 Ng3 Na2 Nc3 Rb4 Qb3 Rc8 Qc4 Rb2 Qb4 Rd8+
3Q3r/r1q1B3/2Pr4/r2b2n1/q1PpB2q/pk1P2R1/r1NB1RN1/B4KR1 w - - 0 1 legal: proof: g4 c5 e4 f5 a4 fxe4 b4 b5 bxc5 bxa4 f3 g5 f4 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Bc4 Bh6 Bf1 Bg5 hxg5 Bb7 Nc3 Ba6 Nb1 Bc8 c4 h5 c6 e5 d3 Ke7 f6+ Kd6 f7 Kc5 f5 Kb4 g6 a5 g7 d5 f6 g3 Bh3 h4 Be6 h3 Bb2 g2 Bc1 e3 Qd2+ Kb3 f8B h2 f7 e4 Bfa3 d4 f8B e2 Bg4 Nh6 g8R Qc7 Bae7 a3 Bd8 a2 Nh3 g1R+ Kf2 e1R Ng5 a4 Qa5 Ra7 Bfe7 Be6 Na3 Bd5 Bf3 Nf7 Nc2 a3 Nh3 Rg5 Rf1 h1Q Bb2 Rgh5 Bc3 Ng5 Nf4 Qh4+ Kg2 e3 Be4 e2 Rf2 Rh1 Rg1 e1Q Ba1 Qb4 Kf1 Qa4 Ng2 R8h6 Bb4 Rd6 Be7 Rh8 Qb6 Rh3 Qb8 Rf3 Qd8 Rf5 Rf8 Re5 R8f3 Rf5 Rg3 Re5 Bb2 a1R+ Be1 Ra2 Bd2 Bg8 Bbc3 Rea5 Ba1 Bd5
6R1/q1pPB2N/6R1/bq2b1p1/1B2Q2P/1N1Kbb2/1kBP1b1b/1B1r1R1n w - - 0 1 legal: proof: c4 a5 f4 h5 e4 e5 a4 b5 axb5 d5 g4 hxg4 Ke2 Ra6 Kf2 Rd6 Ke1 Nd7 Nf3 dxc4 Ng1 Rd5 exd5 e4 Nc3 Bb7 Nb1 Ne5 fxe5 Bc8 Ke2 Kd7 b4 f5 e6+ Kd6 b6 g5 h3 f4 b5 Kc5 d6 Kb4 b7 e3 b8R g3 b6 g2 b7 c3 d7 a4 e7 f3+ Kd3 a3 e8B a2 Qc2 f2 Bh5 e2 Bg6 e1B Ke4 Nf6+ Kd4 Ne4 Be2 f1Q Nf3 g1B+ Kd3 Bd6 Nd4 Bef2 Nb3 Ng3 Ba3+ Ka4 Rh2 Nh1 Bb4 Bdc5 Be4 Bce3 h4 Re8 Rg2 Bh2 Rg1 Re5 Ra8+ Ra5 b8B Bb7 Ba7 Qb8 Bac5 Qa7 Be7 Re5 Bh7 Bf3 Rg8 Ra5 Qd1 c2 Qe1 c1B Rg6 Qh3 Rf1 Bb2 Bd1 Bc3 Bc2 Qe6 Rg8 Qc6 Bf5 Bed4 Qe4 Bde3 Bbc5+ Bb4 Nc3+ Ka3 Nd5 Kb2 Nf6 Bc3 Rac1 a1B Nh7 Rb5 Bg6 Ba5 Bb4 Rf5 Bb1 Qa4 Rc6 Qb5+ Qc4 Rf4 Bf5 Rg4 Rcg6 Rg1 Bc2 Ka2 Be4 Bae5 Bb1+ Kb2 Bf5 Qa4 Qe4 Qc6 Bc2 Qb5+ Qc4 Qc6 Bb1 Bfg3 Bg4 Bd1 Rf5 Re1 Rf1 Bgf2 Bh5 Bg4 Qe4 Qb5+ Qc4 Be6 Bd1 Bd5 Bdc2 Bb7 Rd8 Rd1 Rdg8 Qbb6 Qf4 Bf3 Qe4 Qb5+
N3q1B1/P1N1PbR1/1Q1R2q1/bbp1rR2/N6B/1p6/3qk1Pq/2KN1rq1 w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 a5 b4 axb4 c4 e4 h4 gxh4 c5 Ke7 d6+ Kf6 d5 Nd7 c6 Ne5 fxe5+ Kg6 Bd2 Nf6 Bc1 Nd7 cxd7 Bg7 Bf4 Bh6 Bc1 Bf8 Kd2 Kg5 a4 Kf4 a5 b5 a6 f5 e6 h5 a7 b3 Nf3 b4 Ra4 b2 Be2 b3 Bc4 e3+ Kd3 h3 Ng5 h4 Qg1 h2 Nc3 h3 Ra5 Rh5 Nge4 Qe8 d8N b1Q+ Ke2 c6 d7 Bb4 Kd1 Bb7 Rc5 Ba5 d6 Ba6 e7 Bb5 Be6 Bc4 Bg8 Bf7 Nf2 Kg3 Rb5 f4 Na4 f3 Ne6 Qg6 d8N Re5 Bd2 e2+ Kc1 e1Q+ Nd1 f2 d7 f1B Qb6 Bc4 Rf1 h1Q Nc7 h2 Nde6 Qg1 d8R h1Q Bg5 Qhh2 Rd6 c5 Rb4 Be2 Rf5 Bb5 Rbd4 Rc8 Na8 Rc6 Nec7 Qe2 R6d5 Rf6 Rh4 Qa2 Rh7 Qaf2 Rg7 Qfe1 Rf2 Rff5 Rfd2 Rf1 Bh4+ Kf4 Rf2+ Ke4 Rd6 Qe2 Nd5 Kd3 Rf5 Qe1 Ndc7+ Ke2 Bg5 Qb4 Bh4 Qd2+
r1nk2NR/1p2nn2/1N2nbQp/1RR5/BB1P2Pr/2B5/P2Knn2/3Bn3 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 h3 g5 Bb2 f4 Bc1 Bf5 gxf5 g4 Ba3 g3 Bb2 Qg5 Bc1 Qg4 hxg4 Ra3 Rh6 Ra6 Rh1 Ra8 d4 c5 e4 g2 f6 b3 f7+ Kd8 e5 c4 d6 c3 e6 f2+ Ke2 c2 d7 b2 Rh2 f3+ Ke3 Ne7 Bd3 Nbc6 Rh5 Bg7 f8B Nc8 Nh3 g1N Na3 b1N Bb2 c1N Rb5 N6e7 Bc2 Bf6 Ng5 Nd3 Ne4 Ne2 Bc3 Ndf4 Nc4 Na3 Rc5 Nb5 Nb6 Nbd6 Qd3 Nf7 Kd2 Nh3 Rb1 Nhg5 Rbb5 f1N+ Kd1 Nh2 Kd2 f2 Bd1 Be5 Nf6 f1N+ Ke1 Ne3 Ng8 Bg7 Qg6 Bf6 Kd2 Nhf3+ Kd3 Ne1+ Kd2 Nc6 e7+ Kc7 d8R Ne6 Bb3 Nd1 e8B Nf2 Bc2 Ne5 Bd1 Nf7 Re5 N6e7 Rf5 Nd5 Bfb4 Nde7 Bc6 Ncd6 Rb8 Ndc8 Rfc5 Kd8 Bd5 Ra3 B5b3 h6 Ba4 Rb3 Ba1 Rh3 Bac3 Rh4 Ba1 Ke8 Ra8 Ned3 Bac3 Ne1 Ra6 Nd6 Ra8+ Nd8 Rb8 Nc6 Ne7 Rg8 Nbc8 Ne6 Ra8 Kd7 Nb6+ Kc7 Nc4 Rh8 Rg8 Kd7 Nb6+ Kc7 Rg7 Ra8 Rh7 Kd8 Ng8 Ne7 Rh8 Ndc8
2r1qK2/1n3B2/2P2Rq1/3rB1rQ/rn4Bn/2qpp3/PN2RP2/RRN2k2 w - - 0 1 illegal: No possible last move, all moves rejected
q2BR1N1/P1N5/2q1n3/q3rB2/NK1PBpP1/1p1r2R1/4n1qk/2n1rQ1N w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 g5 d5 cxd5 exf4 h3 Bd7 Ba3 Be7 Qc2 Bf6 gxf6 g5 Bb2 g4 Qd1 g3 Ba3 Be6 Bc1 Bf7 Bg2 Bh5 Bf1 Bg4 hxg4 Ra7 Rh6 Ra6 Rh1 Ra8 a4 Kf7 e4 Kg6 d4 Kg5 Kd2 h5 a5 b5 f7 c5 f8N f3 e5 Kf4 e6 f2 e7 g2 e8B Kg3 d6 f4 a6 b3 Kc3 h4 d7 c4 a7 b2 Qb3 b4+ Kd2+ c3+ Kc2 h3 Qc4 h2 Kb3 c2 Bd3 f1Q Nh7 Qa5 d8N Ne7 Ne6 Qf3 Nc7 Nf5 Bd2 Nc6 Nh3 g1Q Bg6 Rae8 Ra3 Qgg2 Nc3 Nd8 Nf2 Qc6 Na4 Ne6 Nf6 Rh3 Re1 h1Q Ng8 Kh2 Re2 Ng3 Bgf5 Qa8 Bde4 Qc1 Re3 Ne2 Nh1 Rg3 Qa6 b1R+ Kc4 Re7 Be1 Rf3 Bh4 Re8 Rac3 b3 Bd8 Rg3 Bd3 Ra1 Re5 Rb1 Bde4 Rd3 Qb5 Qa3 Qa6 Re1 Qb5 c1N Qa6 Rd2 Rg3 Qc3+ Kb5 Qcc6+ Ka5 Qa1 Kb4 Re7 Qd3 Qa2 Qf3 Rd3 Qf1 Nc5 Rd5 Re5 Rd6 Qa1 Re6 Qa2 Re8 Ne6 Nc3 Qaa6 Na4 Qa5+
B6B/N1q1B3/4b2k/R2pP2P/1P1n1RRn/b1K1np1b/3nQ3/B3Nbb1 w - - 0 1 illegal: No proof kernel
kN5q/3PP3/br2B1P1/2q1R3/2R1b1BK/1bb3pR/qqpR1Q2/1N2r1B1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 Ba3 g5 Bb2 f4 Bc1 Ne7 h3 Nf5 gxf5 Nd7 h4 g4 Qb3 Nc5 Qc2 Ne6 Qd1 Ng5 hxg5 Bd6 Bg2 Bc5 Bf1 Bf8 Kf2 Kd7 d4 b5 e4 h5 a4 c5 f6 Kc7 g6 Kb7 f7 b3 e5 h4 d6 b2 a5 b4 e6 h3 e7 c4 d7 h2 d5 c3 d6 c2 Ra4 b3 Qe1 Rb8 a6+ Ka8 a7 Ba6 Bd3 Rb6 Bf5 Bg7 f8R Bc3 Ne2 Rh5 Rf6 Qh8 Be6 Re5 Nd4 Re3 Qd2 Re1 Nc6 Bc4 Nb8 Ba6 Rg1 h1B d8R Bc4 Rg3 Bd5 Na3 b1Q Rh3 b2 Rc4 Qa2 Rf5 b1Q Re5 Qbb2 Nb1 Be4 Qe2 Bg2 Be3 Bd5 Rd4 Bb3 d7 Bh1 Rd2 Bg2 Rc8 Bh1 Qf1 Bg2 Kg1 f2+ Kh2 Be4 Rc4 f3 Qg1 f1Q Kg3 Qd3 Qf2 Qd6 Bd4 Qc5 Be3 Qg7 Kh4 g3 Bg4 Kb7 a8B+ Ka7 Qf1 f2 Bd5 Qg8 Bf7 Ka8 Bfe6 Qe8 Qg2 f1B Bg1 Be2 Qf2 B2d3 Ra4+ Ba6 Rc4 Qh8+
K2Rn3/p5qb/3P3k/2NP1nRp/n3QB2/b1NBp3/3NrNBP/r1b5 w - - 0 1 legal: proof: b4 c5 bxc5 b5 e4 Qb6 a4 Qc7 axb5 Qd8 g4 d5 exd5 f5 f3 fxg4 Bh3 gxf3 Bg2 Bf5 Bf1 Bc8 Kf2 Kf7 Ke3 Kg6 Ke4 e5 d4 h5 c4 f2 d6 Bg4 Kd5 e4 c6 Bd7 c7 Qe7 c8N Nh6 b6 Be8 b7 Ng4 c5 Bb5 Qd3 Rh6 Ra5 Nd7 Bg2 f1N b8N Ng3 Bf4 Nf5 Nc3 Ba4 Nf3 Bc2 Kc6 Ngf6 Kb7 Nb6+ Nd7 Na4 Rb1 Ne8 Rd1 Kh7 Rb5 g5 Nd2 g4 Qc4 g3 Qe6 Qg7 Ra5 e3 Qe4 Rb8+ Ka6 Rb1 Qd3 Rf6 Nc4 Rb7 c6 Rg6 Ne4 Nh6 Bf1 g2 c7 g1B N8b6 Nc3 c8B Qh8 Rc1 Na4 Nd5 Rb2 Bb7 Bf2 Bc6 Ra2 Kb7 Ra1 Ka8 Be1 Rb1 Rg5 Rb8 Bb4 Ncd2 Rg2 Rd8 Bg7 Bb5 Re2 Bg2 Bf6 Nf2+ Kg7 Qc4 Bh7 Qc2 Qg8 Qe4 Ba3 Bd3 Qf7 Nc3 Qg6 Rg5 Nf5 d5 Kh6 Ncb1 Bfb2 Nc3 Qg7 Nc5 Bc1
2n2RB1/RK2p2q/B1pPNp1N/3kP2b/1r2RPQ1/bq2B2q/n6r/4R3 w - - 0 1 legal: proof: c4 a5 h4 d5 cxd5 g5 b4 gxh4 bxa5 b5 a4 Qd6 a6 Qc6 a5 Qb6 axb6 b4 b7 Nc6 b8Q Nxb8 d4 Kd7 Kd2 Kd6 Ke3 h5 Ke4 f6 g4 b3 g5 h3 g6 b2 a7 h4 g7 h2 Nf3 h3 Na3 b1Q+ Nc2 Bd7 Be3 Nh6 g8B Ba4 Ne5 Nd7 Ng4 Nf5 Nh6 Rb8 a8R Qb3 Ra7 Nb6 f3 Be8 R1a4 Bh5 Rg1 Kd7 d6 Kc6 d7 h1Q d8R h2 Re8 Kd6 d5 Nd4 Rc4 Nc6 Nd4 Rb7 Ne6 Nb4 Rd4 Bg7 Rf8 Na2 Rda4 Qg2 Rc4 h1Q Qd4 Kd7 d6 Qgh3 Qd1 Rh7 Kd4 c6 Kc5 Q1h2 Qd4 Rh8 Qg4 Qh1 Re4 Q1h2 Nf7 Bh6 Rh1 Bf4 Nh6 Be5 f4 Bb2 Bd2 Rh7 e3 Bc1 Ba6 Bb2 Re1 Ba3+ Rb4 Rh8 e4 Qh1 e5 Qe4 Be3 Qh7 Bf7 Rg8 Qf3 Rg2 Bg8 Rh2 Qg4 Bb2 Re4 Ba3+ Kd4 Nd5 Raa8 Rb4+ Kc5 Nb6 Nd8+ Qf5 Ndf7 Ke6 Ra7 Nd5 Bb5 Ndc3 Kb6 Nd5+ Kb7 Nb6 Ba6 Kd5 Nd8+ Qe6 Qg1 Qf7 Ne6 Qh7 Qg4 Nc8+
1n3r1n/Kp2R1N1/1pnk3b/2p3r1/R1BP1P2/3PqQ1B/BqR5/2B3Nb w - - 0 1 legal: proof: b4 d5 c3 d4 cxd4 Na6 b5 Nb8 b6 axb6 e3 Ra7 Qh5 Ra5 Qd1 Ra8 Ke2 f5 Ke1 f4 exf4 e5 Ba6 e4 Be2 Kf7 Bf1 Ke8 h4 g5 f3 exf3 hxg5 Bg4 Rh2 Bd7 Rh1 Bc8 Kf2 Kd7 Ke3 h5 g4 c5 a4 h4 g6 f2 a5 h3 a6 h2 a7 Ne7 d3 Na6 g7 Rh7 g8B Rh5 g5 Ng6 Ba2 Ne7 g6 Kc6 g7 Rf5 g8B Qd7 Na3 Ng6 Nc2 Nh8 Qf3+ Kd6 Bgc4 Bh6 Bh3 f1N+ Ke4 Qb5 Ne3 Bd7 Rb1 Rc8 a8R Rcf8 Rb2 Rg5 Rc2 Nb8 Ra4 Qb2 Nf5+ Kc6 Qg2 Ne3 Qf3 Nd5 Ng7 Bf5+ Ke5 Be4+ Ke6 Nb4 Ke7 Rf7+ Kd8 Kd6 Kc8 N4c6 Ne2 Bd5 Re1 h1Q Ng1 Qh2 Re5 Qg3 Re7 Rf8+ Re8 Qh4 Qe2 Nd7 Qf2 Bh1 Qf3 Nd8 Re7 Qe1 Ra3 Qe3 Ra4 Ne5 Kb8 Nd7+ Ka8 Nb8 Ka7 Ndc6+
NR4bK/2Q4b/1B6/rN2R1pP/2nnNPP1/nb4p1/1p1q1N2/1q2kB1R w - - 0 1 legal: proof: b4 a5 c4 axb4 e3 d5 cxd5 h5 g4 h4 Qf3 Ra5 Qg2 Ra8 Qg3 hxg3 Kd1 f5 Ne2 e5 Kc2 b5 Bb2 f4 Ba3 e4 Ng1 Bd6 Bc1 Ra3 Ne2 f3 Ng1 Bf4 exf4 e3 Nc3 e2 Nb1 Re3 fxe3 Kd7 Bg2 Ke7 Bf1 Ke8 Kd3 Kd7 Ke4 Kd6 h4 Kc5 Ke5 Kc4 a4 Kd3 d6 g5 h5 c5 a5 c4 e4 c3 a6 f2 d7 b3 a7 b2 a8N b4 Ke6 b3 Kf7 c2 Kg7 Nf6 e5 Ne4 e6 Nd6 e7 Nc4 e8N Nc6 Nc3 b1B Ne4 b2 Ra5 Nd4 Re5 Qa5 d8Q Be6 Nh3 Bg8 Qb6 Rh6 Qb7 Ra6 Nec7 Qa1 Nb5 Ra5 Kh8 Qa2 Bg2 f1B Qc7 e1N Nhf2+ Ke2 d3 Qa1 Be3 c1Q Bh3 Qd2 Bg2 Ndc2 d4 N2a3 d5 Nec2 d6 Nd4 d7 Ke1 d8R Bd3 Bh3 Qb1 Rb8 Bc2 Bg2 Bb3 Bh3 Ndc2 Bb6 Nd4 Rh2 Be2 Bf1 Bd3 Rh1 Ne3 Nec3 Bdh7 Nce4 Nec4
q7/qr5K/N6B/PnbB1k1b/B1Np3b/Pq1pQP2/2R1pr1N/4BR2 w - - 0 1 legal: proof: d4 f5 b4 h5 d5 a5 bxa5 f4 d6 f3 exf3 cxd6 Kd2 d5 Ke1 d4 g4 hxg4 Bd2 e5 Bh3 e4 Bg2 e3 Ke2 Na6 Bc1 Nb4 Bf1 Nd5 Kd3 e2 Kd2 Ne3 fxe3 Qe7 Ke1 Qg5 Kd2 Qd8 Kd3 Kf7 Ke4 Kg6 c4 b5 h4 d6 a3 b4 c5 b3 h5+ Kg5 h6 b2 h7 g3 c6 g2 c7 g6 Nh3+ Kf6 Nf2 g1Q Qd2 g5 Ra2 d3 Bh3 Bg7 Bd7 g4 Ba4 g3 Ng4+ Kg5 Nh2 Qf2 Rf1 Bg4 c8B g2 Be6 g1B Bd5 Kg6 Kf4 Bh5 e4 Ra7 e5 Bf6 e6 Rb7 e7 Bh4 e8N Nh6 Nc7 Nf7 Qe3 Qa8 Nd2 b1Q Nc4 Qb3 Na6 Rg8 h8B Rg7 Bdc6 d5 Rc2 Nd6 Bd2 Rg8 Be1 Nb5 Bg7 Rh8 Bh6 Rg8 Qd2 Qfa7 Ke5 Bc5 Qe3 d4 Kf4 Kf6 Bd5 Rg2 Ke4 Ke7 Kf5+ Kd7 Bg7 Rf2 Bh6 Bg4+ Kg6 Bh5+ Kh7 Bd6 Qg5 Bc5 Qc1 Ke7 Qe3+ Kf6+ Nc7 Be7 Na6 Kf5 Bg8 Bb4+ Bf7 Bbe7 Bd5 Bc5+
B2n4/N2q2k1/1r2p1B1/pq1PN1N1/4n1pB/1P1Q1R2/1P3Nr1/2qKR1rb w - - 0 1 legal: proof: e4 f5 c4 d5 cxd5 b5 Bd3 b4 Bf1 b3 axb3 Bb7 Ra2 Ba6 Ra1 Bc8 g4 fxe4 d4 h5 Na3 hxg4 Qc2 c5 Nb1 c4 Qd3 e6 Qd1 Bc5 dxc5 Qg5 Nc3 Qe7 Nb1 Qd8 h4 Kf8 f4 a5 c6 g5 c7 c3 h5 c2 f5 e3 f6 e2 f7 g3 h6 g4 h7 g2 Bg5 c1Q Nc3 Qe7 Nb5 Bd7 c8B Na6 Bh4 Nc5 Bb7 Ra6 Ba8 Rb6 Nh3 g1R Nf2 Nb7 Na7 Kg7 f8N Bb5 Ng6 Qd7 Ne5 Nf6 Rh3 Ne4 Rf3 Nd8 Rb1 Rf8 h8N Bd3 Nhf7 Qc5 Ng5 Qcb5 Ra1 Bb1 Qd3 Rh8 Bg3 Rh2 Bh4 Bc2 Rb1 Rhg2 Rd1 Nd6 Kd2 e1Q+ Kc1 Qc3 Re1 Bb1+ Kd1 Ne4 Qc4 Qe3 Bd3 Qc1+ Ke2 Nd6 Bg6 Be4 Qd3 Rg3 Rf8 Bh1 Rf5 Ne4 Rf3 Qcc8 Kd1 R3g2 Nac6 Qcc7 Na7 Qc1+
1n3rBn/1n5N/QKB4p/RpbqPk2/2P3q1/2P5/4rpRn/2N1B1RR w - - 0 1 legal: proof: f4 c5 b4 a5 g4 axb4 f5 c4 d3 e6 dxc4 exf5 Qd2 f4 Qd4 Ra6 Qd1 Ra8 h3 f5 Kd2 g5 Ke1 b6 Be3 Bb7 Bc1 Bf3 gxf5 g4 Qd2 g3 Qd1 Bg4 hxg4 Qf6 Qd6 Qg5 Qd1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 d5 e4 g2 a4 f3 g5+ Kg7 f6+ Kg6 e5 b5 f7 f2 c3 h6 a5 b3 a6 b2 a7 Ne7 Kc5 d4 Qa4 d3 Nf3 g1N Bd2 Qc8+ Kb6 Qd7 Qa6 Qd5 Be1 d2 Bg2 d1Q Nbd2 b1N Nb3 Kf5 g6 Nd2 g7 Ne4 g8B Nd6 Nc1 Ng6 Ng5 Nf3 Nh7 Nb7 Ra5 Ba3 Rg1 Nh2 f8R+ Kg4 Re8 Kf5 Re7 Qg4 Rg7 Qd7 Bc6 Qd5 Bf7 Rf8 Bg8 Nh8 Rh1 Qgf3 Rg2 Bc5+ Kc7 Nd7 Rgg1 Rad8 a8R Qg4 Rc8 Nb8 Rg2 Ba3 Kb6 Bb4 Rc7 Rd6 Rg7 Bc5+ Kc7 Qdd1 Rgg1 Rd2 Rg2 Re2 Rg6 Bd6+ Kb6 Qd5 Rgg1 Qh4 R6g3 Qg4 R3g2 Bc5+
4R1q1/1n1nq3/1P4NP/3p1BK1/b1N1pN2/2r1Pqp1/R1q4Q/2bkB1BB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 cxd4 fxg5 Rh7 Nh3 Rh6 Ng1 Rh8 b4 hxg4 c4 a5 b6 a4 b7 Rh6 c5 Raa6 b5 Rab6 cxb6 Rh8 Kf2 d5 Kg3 Kd7 Kf4 Ke6 h4 f5 e3 a3 g6 a2 g7 d3 h5 g3 Bd2 Nc6 b8N Nf6 b7 Na5 b6 Bd7 Kg5 Ke5 g8B Ke4 Na3 e5 Nc4 f4 Qc2 f3 Be1 f2 Ne2 Kf3 Bh7 e4 Nc6 d2 b8B d1Q Be5 Ba3 Bf5 Nb7 B5c3 Qe7 Nf4 Bc1 h6 Qe2 Rh2 Rc8 B1h3 f1Q Bf2 Qh1 Bg1 Qd2 Qb2 Qc2 Be1 Rc7 Nb8 Ba4 Nd7 Qhg2 Nf8 Qf1 N8g6 Rc5 Ng2 Ke2 N2f4+ Kd1 Bg2 Qf3 Bh1 Rc6 Nce5 Rc3 Nc4 Qd3 Rh5 Qb1 Qh2 Qc2 Rb1 a1Q Rb2 Qaa3 Ra2 Qf8 Bc8 Qac5 Bf5 Nd7 Kh4 Qce2 Be6 Ba3 Re5 Qc2 Kg5 Qg8 Bf5 Bc1 Re8 Qe7+
R5NB/2p2R1N/1pb5/p1PrRBPQ/k1q2b2/2nq4/qn2P3/2B1BqK1 w - - 0 1 legal: proof: h4 g5 d4 e5 dxe5 f6 exf6 Bg7 Qd3 Bh6 Qd1 Bf8 a4 gxh4 a5 Bd6 a6 Bf8 Bg5 b6 Bc1 Nc6 b3 Rb8 b4 Rb7 axb7 a5 Bf4 Nb8 Bc1 Bxb4+ Bd2 Ba3 Bc1 Bf8 g4 h5 c4 d5 f4 Kd7 Kf2 Kc6 f7 d4 c5 Kb5 f5 d3 f6 h3 Bg2 h2 Bh3 h4 Nd2 Bh6 f8B Ne7 f7 Nbc6 b8R Bb7 Ra8 Bf4 Ne4 d2 Nf6 Qd3 Ng8 Rh5 Bg7 Qc4 f8B Nb4 Nf3 Bc6 Bh8 Ned5 Bh6 Nc3 Ng5 Nd3+ Kf1 Kb4 Nh7 Rd5 Qc2 Nb2 Qg6 Kb3 Qh5 d1Q+ Kg2 Qdd3 Rb1 Bd6 Bhd2 Ka4 Be1 Bf4 g5 Qa2 Rf1 h1Q+ Kf2 Qdc4 Bf5 Qhe4 Kg1 h3 Rf3 Qed3 Re3 Nb5 Re5 h2+ Kf1 h1Q+ Kf2 Qhh3 Kg1 Nd1 Rb3 Nb2 Rc3 Qdf3 Rce3 Nc3 Re7 Qfe4 Rf7 Qed3 Re5 Qf1+
bN5b/P1R3B1/2r5/1NrrBN1p/N4r1q/1KP1p1pq/nP5R/kB5Q w - - 0 1 illegal: No proof kernel
3K2B1/Pq1R1pN1/1Bq5/P3k1nR/4b1nR/nQ6/p3NP1p/q1Rbb1B1 w - - 0 1 illegal: No proof kernel
N3r3/2rpr2B/RP3r1k/3pNp2/R2PQ1Br/4N3/3n1Pq1/q2rKBB1 w - - 1 2 illegal: No possible last move, all moves rejected
K1B1bRNb/qp1Np2p/P2P2bP/pqn5/2R1Nr1k/4r3/1B1QR3/6R1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 bxc5 g5 a4 gxf4 Qe2 Qd3 Qd1 Qb5 axb5 a5 Ra4 Bh3 Ra1 Na6 bxa6 Bc8 Ke2 f5 g4 Kf7 d4 Kf6 c4 Kg5 h4+ Kg6 g5 Kh5 g6 e3 Kd3+ f3 g7 f4 d5 e2 Kd4 e1Q c6 Nh6 Kc5 Qd2 Kb6 Qc2 g8N Qg2 c5 Qf2 c7 Bf5 c8R Bg6 d6 Nf7 Nd2 Ne5 Bh3 Nd3 Ra2 Bg7 Rf8 Rc8 Ka7 Qd4 Qe1 f2 Bb2 f1Q Ne4 f3 Qd2 f2 Nf3 Qe2 Bd7 f1B Ne5 Qb4 c6 Nc5 c7 Qeb5 Rg1 Bh3 Bc6 Bd7 Bd5 Bf6 Be6 Bde8 Nd7 Be5 Nb8 Qb6+ Ka8 Q4b5 Bh3 Rd8 c8R Rd7 Bf1 Rc7 Nd7 Bg7 Bg2 Kg4 h5 Kh4 h6 Rc6 Ngf6 Rg8 Rc7 Bh8 Bh3 Rg7 Rc8 Rf7 Ng8 Rf4 Bf5 Nd3 Bg4 Rc3 Rc4 Rb3 Ndf6 Nc5 Bc8 Ra3 Nd7 Rh3 Raa1 Rg3 Rae1 Re3 Re2 Qa7+
2R1b1k1/QPnn1qN1/p5p1/1Bq3K1/3R3B/2pN2BB/pq2PRP1/q3b3 w - - 0 1 illegal: No proof kernel forced: bxLB
b2B3N/2qQbRpp/2PRr1b1/R1b2Kpb/5pP1/3P4/3N2Rq/1B1B3k w - - 0 1 illegal: No possible last move
kN3BqN/2Q1P1q1/pppp1bN1/2PP4/R3R1qn/1KqR3R/8/3B1b1q w - - 0 2 legal: proof: f4 e5 b4 exf4 a4 h5 b5 a6 b6 g6 a5 Ra7 bxa7 Rh6 h4 g5 a8N Rb6 axb6 gxh4 Nh3 Nc6 Ng1 Na7 bxa7 Bc5 Nh3 Ba3 Ng1 Bf8 d4 f5 Kd2 d6 Kc3 Kd7 e4 Kc6 g4 f3 g5 f2 e5 f4 d5+ Kc5 e6 h3 g6 h2 g7 h4 Nb6 f3 a8R h3 Nd2 Ne7 g8R Qd7 Rg3 Ng6 Ndc4 Bg7+ Ne5 Qa4 Bh6 Bf6 Bf8 Qg4 Be2 f1Q Kb3 f2 c4 Nh4 Ngf3 Qg2 Ng5 f1Q Rd3 Qe1 Ng6 c6 Qd2 Qgg1 Ra4 Qa1 Nf7 Qc3+ Ka2 Q1g2 Bd1 Q2g3 Re1 h1Q e7 h2 Nfh8 Qhg1 Re4 h1Q Qe1 Qgd4 Qf2 Be6 Qf5 Bc8 Qd7 Qde5 Rb8 Qee6 Qc7 Qg8 Ne5 Q4g7 Neg6 Bh3 Rc8 Bf1 Ra8 Qce1 Kb3 Qg4 Nf7 Nf3 Rd8 Q8h8 Rc8 Qgh6 Bg7 Q8h7 Rh8 Qg8 Bf8 Qhg7 Rh3 Nh4 Nfh8 Qc3+ Ka2 Bg2 Ra3 Bf1 Nd7+ Kb4 Nb8 Kc5 Qd7 Kb6 c5+ Ka7 Raa4 Ka8 Qc7 Qa5 Ka3 b6 Kb3 Qc3+
3Rq3/kpB1q3/N2pB2p/3Pn2B/K2P4/3N1PB1/p1p1Rqrn/2b2Q1R w - - 0 1 legal: proof: h4 a5 d4 g5 e4 gxh4 d5 f5 exf5 Ra6 c3 Rb6 b3 a4 Bb2 Rb4 Bc1 Rd4 cxd4 a3 Bh6 d6 Rh3 Na6 Be3 Bd7 Rh1 Nb4 Bc1 Ba4 bxa4 Nxa2 Kd2 Kd7 Kc2 Kc8 Kb3 Kb8 g4 c5 g5 e5 f6 h6 g6 h3 f7 e4 g7 h2 a5 c4+ Ka4 c3 a6 c2 a7+ Kc8 a8R+ Kc7 Bf4 Kb6 Nf3 e3 Ne5 e2 Nc3 e1Q Be2 Qe7 Bg3 Nf6 g8B Nc1 Ne4 a2 Nd3 Ng4 Rd8 Ka7 Nec5 Bg7 f8B Bf6 Rb1 Bg5 Be6 Rg8 Na6 Qd2 Re1 h1Q Bf3 Qh5 Re2 Qhf7 Qf1 Nh2 Bh5 Qe1 f3 Qf2 Bg7 Bf4 Bf6 Rg7 Ndb4 Nd3 Bfh4 Ne5 Nd3 Bc1 Bg5 Qff6 Bd2 Qff7 Ba5 Bd2 Rd1 Bc1 Bc7 Qff8 Qg2 Rg5 Rh1 Rg6 Qf1 Qff7 Bh4 Rg2 Bg3 Qfe8+
Qq2q1rn/KN1N1B2/4PP2/1p1r2Bq/N5Rp/2p1P3/pBR1pN1k/5n2 w - - 0 1 illegal: No proof kernel
1B3n1k/3R1p2/pN1RnR2/Pq1RppQ1/1PpN2r1/2r5/qP6/N1qK3B w - - 0 1 legal: proof: g4 b5 f4 b4 e4 b3 cxb3 Na6 e5 Nb8 e6 dxe6 f5 exf5 b4 Qd7 Qf3 Qd3 Qd1 Qd8 Kf2 h5 Ke1 Ba6 g5 Be2 h3 Bg4 Kf2 g6 Ke1 Bh6 gxh6 g5 Qb3 Bf3 Qd1 g4 Na3 g3 Nb1 Bg4 hxg4 Qc8 Bc4 Qd7 Bf1 Qd8 d4 Kf8 a4 c5 h7 Kg7 g5 c4 d5 e6 g6 a6 a5 g2 d6 h4 d7 h3 Na3 h2 Qg4 Nc6 Nf3 g1Q Qg5 Nf6 Nd4 Qg8 d8R Ne4 Bf4 Nc3 Bb8 e5 Rd6 Nd5 Nac2 Qf8 Rd1 Nd8 Na1 Nb6 Rd2 Ne6 Kd1 Qg3 Bg2 Nd7 Bb7 Rg8 h8R Qe8 Rh6 Qa3 Re1 Qa2 Bh1 Ndf8 Re3 Qc6 Red3 Rh8 Rd7 Kg8 g7 Qb5 Rf6 Rh3 Rd6 Kh7 g8N Kh8 Ne7 Re3 Nd5 Rg3 Ba7 Rd8 Bb8 Rg4 Nb6 Rd7 Nc6 Rd8 R3d5 Rd7 Bf3 Rd8 Nd4 h1Q+ Ke2 Qc1 Bh1 Nh7 Rd7 Rg8 R5d6 Nhf8 Rd3 Rg3 Rd2 Rc3 Rd3 Qf4 Kd1 Qe3 Rd5 Rg6 R5d6 Qc1+ Ke2 Rh6 Nf3 Qe3+ Kd1 Rh4 R3d5 Rg4 Nd4 Qc1+
2RB3K/n2qqR1N/1r2n2N/r1R2P2/1b3QP1/2RBP1N1/1n2b1n1/1n1q2kb w - - 0 1 illegal: No proof kernel
k3NQ2/N1qn4/1BPB3q/3K2bN/2r3qq/2rBBR1P/1RnqP2r/3b2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 Kf3 a5 Ke4 d5+ Ke5 Kd7 c4 Kc7 b4 Kb7 b6 f5 b5 a4 h6 f3 h7 d3 c5 f4 Na3 f2 Qd2 f3 Qc3 d2 Rb1 d1R Nh3 d4 Be3 d3 Qc1 g4 Bg5 d2 Qc3 g3 Be3 g2 Bd4 g1B Rb4 Bf5 Ng5 Bh6 Rb2 Na6 Be3 Nf6 Nc4 a3 Nh3 a2 Qa3 a1Q Nf4 Nb4 Bg2 f1Q Nh5 Ra4 Nd6+ Ka8 Ne8 Qc1 h3 Nc2 Rh2 Nd7+ Kd5 f2 Be4 Qh4 Bd3 Bg5 Qb4 Rf8 h8B Bg6 Bc3 Rf3 Bcd4 Qg2 Rh1 f1Q b7+ Kb8 Rh2 Qgg4 Rf2 Qe1 Qa3 Rc4 Qb4 Ka7 b8B+ Ka8 b6 Qhg3 Rf1 Qc7 Rf2 Rg3 Rf5 Rg2 Rf3 Rh2 Qa3+ Qa7 Bc7 Qeh4 Bd6 Rf1 Qb4 d1Q Qa3 Qcd2 Qb4 Qc7 b7+ Ka7 b8N Ka8 Nc6 Q1c1 Na7 Bh7 Rf7 Rf3 c6 Bg8 Bb6 Bh7 Bed4 Re3 Rf3 Bg6 Bf5 Rec3 Bd3 Bh6 Bf8 Ne1 Rg3 Qe3 Bc2 Qcd2 Rf3 Qef4 Bb1 Bc2 Qe7 Bd1 Bd3 Qff6 Be3 Bg5 Qf7 Nc2 Bd6 Qh8 Qf8 Qh6
n4BN1/1R4r1/P3k1r1/br3r2/1BR2qNb/1P2PN2/rQB1K1Bq/nbn5 w - - 0 1 illegal: No proof kernel
3q3Q/k1bqBRPB/1N1b3N/5rrR/2b1bn1P/P3nqB1/n1b1R3/1K3B2 w - - 0 1 illegal: No possible last move, all moves rejected
q6R/kNq2qPB/3q3b/1nR3K1/nQ2r1PR/2R2B2/3B1Pbq/N3r1nr w - - 0 1 illegal: No possible last move
B1r2R2/K6R/nNq1bNQ1/B1P1Bqq1/1b3P1r/3kr2b/b1nPR3/3n3R w - - 0 1 illegal: No proof kernel
KNRn1nR1/1r2r3/PP1q1N2/B3QR2/nb3Rb1/2P1b1r1/B5q1/k1r2qN1 w - - 0 1 illegal: No proof kernel
2K2r2/1B1Rb1k1/2Nbq1n1/2n1Pb1R/b1n2rrb/PN3P2/Q1R1NR2/4B2b w - - 0 1 illegal: No proof kernel
b1nqB2n/1NbP3r/Nr2R1NR/BPR3K1/1nQ2Rn1/2b4r/1k1P2n1/4n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 b4 c5 g4 h5 e4 a5 b6 f5 b5 a4 g5 h3 g6 a3 g7 c4 b7 Kc5 d6 Kb4 d7 c3 e5 h2 e6 h4 e7 c2 e8R Kb3 Ra2 h3 Qe1 Rh7 Qe7 Nc6 b8R Ne5+ Ke2 f3+ Ke3 f4+ Ke4 f2 Kf5 f3 Bb2 c1N Ra1 a2 Ba3 Bb7 Qg5 Ne7+ Kf4 Nf7 g8N Nh8 Qh4 Nc8 Nc3 Ra6 Re6 Ba8 Ne4 Rb6 Ngf6 Bd6+ Kg5 Nd3 Be2 f1N Bb4 f2 Bh5 Ne1 Nf3 Kb2 Ba5 Bc7 Ne5 Ne3 Ng6 f1N Nd6 N3g2 Qc4 Nfe3 Rc1 a1B Nb7 Nd5 Rf1 h1R Rf4 h2 Rc3 Nce7 Ne4 Nb4 Nec5 Nc8+ Kf5 Rf1 Na6 h1N Rh3 Rf3 Rh4 Qf8+ Kg5 Nf2 Rh3 Ng4 Rh1 Ne7 Rc8 Qd8 Rh2 Rh3 Rh1 Be5 Rc5 Bc3 Nf8 Be5 Be8 Bc7 Ng6 Nc8+ Rff6 Kb1 Rh2 Bc3 Rh1 Re7 Rf4 Kb2 Rh2 Rd3 Rh4 Rh3 Rh6 Rh7+
BbQ5/2qB1R2/r3b1NR/B6K/2bn1nP1/br3r1N/1r3BPP/1R1b1r1k w - - 0 1 illegal: No proof kernel
4r1qB/1q3NRN/R1b2bn1/2R4b/R1B1n1nP/1b1Q1B2/2rPb1P1/1K4kb w - - 0 1 illegal: No proof kernel
nbbn4/q5B1/R1n1Q1r1/NnB2N2/KRP1Rq1n/n2R2P1/1qB4P/2k1r3 w - - 0 1 illegal: No proof kernel
4bbRN/1Rb1bq1B/KB1r2Q1/N2bq2P/5k1P/5Pn1/1Rnb2q1/RBr5 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Ke2 Kf7 b4 Ke6 h4 Ke5 c4 a5 f3 g5 b6 d5 b7 d3+ Ke3 d2 b5 d4+ Ke2 e3 Kd3 e2 b6 e1B c5 a4 Kc4 g4 Kb5 g3 c6 g2 c7 a3 Bd3 a2 Qa4 d1Q Qa7 Bd2 Na3 Qe2 Bb2 Be6 c8B Kf4 Nc4 Qc7 Rh2 Nh6 Bc3 Na6 b8R Nf5 b7 Ng3 Be4 d3 Bh7 Nb4 Nb6 Qee5+ Ka4 Nc2 Bd4 Bd5 Be4 Rh6 Kb5 Rd6 Rc1 a1B Nc4 e6 Bf2 Qf7 Qb6 Bb2 Ra1 Ba3 Qc6 Ba5 Bc5 d2 Bb6 d1B Bh7 Bd2 Bd7 Bab4 Re8 Rc8 b8R Ba5 Rb7 Bdb4 Bd8 Bc7 Ka6 Bd2 Na5 Be2+ Ka7 Bb5 Qa6 Be7 Rg8 Ba4 Bb5 Bf8 Be2 Be8 Bed3 Ne3 Qb5 Bb8+ Ka8 Rc1 Bc4 Bc3 Be2 Be7 Rg6 Kf5 Bb6 Bc7 Ka7 Bf8 Nh3 g1Q Nb3 Rc6 Nf4 Bcb4 Rf2 Qg2 Ka6 Bbe7 Na5 Rd6 Qa4 Qeg7 Qb5 e5 Bd3+ e4 Bb1 Qe5 Rb2 Nc2 Qe2 e3 Rg8+ Qg6 Qc4 e2 Qc3 e1B Qd3+ Kf6 Qe4 Qf7 Ng6 Bc3 Qg4 Bd2 Qg5+ Ke6 Qh6 Kf5 Nh8+ Qg6 Qg7 Kf4 Qf6+ Qgf5 Qg6 Qf7
QnbBK3/q1N2B2/6b1/nb1NP1qP/6r1/Nb2b2r/1n2PBk1/2R1Bb1R w - - 0 1 illegal: No proof kernel
2r2r2/k4n2/1N1NqBrP/n1r1nb1B/r1Q5/P2B3b/B1KP4/1NR1bRb1 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 e4 Kd7 h4 c5 d6 Kc6 d7 Kb6 a3 g5 h5 f5 e6 c4 e7 c3 e8B g3 e5 c2 e6 b3 e7 f4 Bb5 g2 Bg6 f3 e8B b2 Rh4 f2+ Ke2 f1R Kd3 g4 Nh3 g1B Qf3 g3 Qf7 g2 Qf6+ Ka7 Re4 Nc6 Qd4+ Bc5 Re6 Qe7 d8N Rf8 Rf6 Nh6 Rf7 Qe6 Rf4 Na5 Re4 Nf7 Qd7 Bcf2 h6 Be1 Qd5 b6 Bbc6 b5 Rf4 b4 Qc4 b3 Rf1 Rhg8 Bh5 Rg6 Bb5 Bd7 Nf4 Rc8 Nd5 Rc5 Nbc3 b1R Bb2 c1R Nb7 Rc8 Nb6 Rc2 Qc6 Rbc1 Nb1 Rc4 Nd6 Ra4 Qd5 R1c5 Bf6 b2 Qc4 Qe7 Bd1 Bh3 Bh5 Qe6 Bed7 Bgf2 Kc2 g1N Bdc6 Nf3 Be4 Bd4 Bd3 Bg1 Bc6 N3e5 Bd5 Be3 Qc3 B3f2 Ba2 Bg1 Qc4 Nd8 Nc3 Ndf7 Rc1 b1B+ Kb2 Bc2 Nb1 Bd1 Kc3 Bdg4 Kc2 Bf5
r6N/B1B3k1/Nr4PN/1QRK1b1b/nbBr4/nr1PP1n1/2bR1q1N/r7 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 Kf3 Kf7 b4 a5 g4 h5 d6 c5 e3 c4 b6 a4 g5 a3 b7 a2 d7 c3 g6+ Kg7 b5 h3 b6 h4 Qe1 c2 Ne2 h2 Qd1 h3 Nbc3 Nc6 b8B Qf6 d8N Bb4 b7 Nge7 Qe1 Na7 Nf7 Nd5 Rb1 a1R Qg3 Rh4 Ba3 c1R Qg1 Nb6 Bb2 Na4 Qg2 Nb5 Bc7 Na3 Nd5 Rc3 b8N Rb3 Nd4 Be6 Rg1 h1N Rc1 h2 Ne7 Ng3 Rc5 h1R Ng8 Rg4 Bc4 Rh8 Kf2 f3 Ngh6 f4 Na6 Rhb8 Qf1 Rb6 Nh8 Bf5 Rg2 Bc2 d3 Qf5 Qb1 Qf6 Kg1 f2+ Kh2 f1B Rd2 Be2 Kg2 Rh4 Nf3 Bed1 Nh2 Bh5 Bd4 f3+ Kg1 f2+ Kg2 Nf5 Qb2 f1B+ Kf2 Rg4 Kf3 Bh3 Qb1 Rg2+ Ke4 Ng3+ Kd5 Bf5 Bde5 Rf2 Bb8 Rf4 Bec7 Qh4 Ba7 Re4 Ng8 Qf4 Nh6 Qf2 Qb2+ Rf6 Qe5 Rh4 Qe8 Rb6 Qb5 Rd4+
RN5r/1r3Qb1/Bn1BbNP1/P1R2r1r/5P2/1bqrN3/1B1k2r1/2nNqK2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 Kd6 d4 h5 g4 e5 a5 c5 f6 b5 f7 e4 g5 b3 g6 b2 Nc3 b1B Ba3 b4 Na4 c4 Bh3 e3 Qc1 e2 Rh2 c3 Bd7 h3 Bg4 c2 Qd1 c1R Nf3 h4 Ng5 Be6 Rh1 h2 Nc3 h3 Na4 Qf6 Bf3 Ne7 Nc3 Na6 Bb2 b3 Nh7 Bg7 f8B Rd8 Be4 Ba2 Bd3 Qe5 Nf6 Nc5 Ba6 Rc2 Rc1 Rh5 Qd3 Rf5 Qc4 Qe3 Nd1 Qc3+ Kf2 Rd2 Re1 h1R Rc2 h2 Rc1 Kc7 d6+ Kc6 d7 Nc8 Bd6 Nb6 Rc2 Rg1 Rc1 h1R Rc2 Bg8 Qf7 Rhh5 Rc1 Rg4 Rh1 Rd3 Rh3 Rhg5 Rh8 Rh5 Rc2 Rb8 Rc1 Rb7 Rc2 e1R Rc1 Ree3 Kf1 Reh3 Rc2 Rg2 Rc1 Bh7 Ra8 Bg8 Nf2 Nba4 Qf8 Qb4 Be5 Rgg3 Bc3 Be6 Qf7 b2 Rc2 Nb3 d5+ Kc5 d8N Rgg5 d6 Rg2 d7 Rh8 Nc6 Qd4 d8N R3h5 Nb4 Nb6 Ndc6 b1Q+ Rc1 Qa1 Nc2 Qb4 Ne3 Qb2 Rb1 Nc1 Nfd1 Qd2 Rb2 Bab3 Nb8 Qc4 Bcd4+ Kb4 Rc2 Qc5 Ba1 Qd4 Rc5 Qe4 Bd6 Qc4 Nb2 Kc3 Ned5+ Kc2 Nd1 Qcc3 Bb2 Qe3 Rc8 Kd2 Rc5 Qg3 N5e3 Qe1+
2B3RB/1N1b1B2/Bk1r1P2/2RR1b1N/nbnbr3/1n5q/K1PnP3/b1Qr4 w - - 0 1 illegal: No proof kernel
qqn2k2/1NrR4/2n1P2K/4RB1b/1b1PbN1B/4b1RP/Bb5Q/r1B1b2n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 f5 Ke3 a5 Kf4 c5 e4 g5+ Ke3 a4 b4 c3 d4 f4+ Kf2 c4 e6 f3 Ke3 c2 e5 a3 h3 a2 b6 f2 e7 g3 b7 g2 b5 g4 Kf4 g3 Kg5 c3 b6 Nc6 b8B Bb7 Bd2 c1N Na3 c2 Nb5 Nd3 Qe2 Rh7 Re1 a1Q Bc1 Ra3 Bc7 Qb8 Bd8 Kf7 e8B+ Kg7 e6 Bb4 Bf4 c1B Nd6 Nge7 Bg6 Kf8 Bf5 Bb2 Bc1 Nc8 Kg6 Ra2 Bh4 Rc7 Kh6 Ba8 b7 Ra5 Nf3 g1B Ne5 g2 Qd2 Bh2 Rg1 Bg3 Be2 f1B Ng6+ Kg8 Qf4 Nf2 Bc4 Nh1 Re5 Bge1 Qh2 Be2 Nf4 Kf8 Bb3 Bh5 Ba2 Qa7 b8R Bb7 Rf1 g1B Rf3 Be3 Rg3 Ba8 Rbb5 Qb8 Rbd5 Ra4 Nb7 Ra7 Bb3 Qa5 Rd6 Qd5 Rd7 Ra1 Ba2 Qa5 Nd6 Bb7 Rc5 Qaa8 Re5 Ba6 Nb7 Bd3 Rdg7 Bc2 Rd7 Be4
1nrNr3/1K2PNb1/r1Rn1bq1/3b2Pn/2B2B2/1rQ1N3/P1bRr3/1kB2B2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 b5 d6 h5 d5 f5+ Ke5 c5 d7 h4 g6 b3 g5 h3 g7 h2 d6 b4 Be3 b2 Bg2 b3 Nf3 Qb6 d8B Ra6 d7 Qg6 Rf1 h1B Bh3 Nf6 Rg1 Nh5 Na3+ Kc3 Kd5 b1R g8B Kb2 Bf2 c4 e4 c3 e5 c2 e6 c1B e7 Bg7 Be6 Re8 Bg8 Be3 Qd3 Bed4 Bc7 Bdf6 d8N Bb7+ Kc5 Bd5 Ne5 f3 Qc4 f4 Be3 f2 Bb6 f1R Rg3 f3 Nef7 f2 Bc7 Rfe1 Nc2 f1R Rg2 Re2 Bcf4 Rfc1 Rf2 Bhe4 Bf1 Bd3 Bd2 Bf5 Ne3 Rc3 Kb5 Bc2 Qd3 Rc8 Qc3+ Ka3 Rh2 Rb2 Rc1 Rb1 Qc4 Kb2 Qd3 Ka1 Qc3+ b2 Qd4 Bf5 Rc6 Bc2 Qc3 Rd1 Be5 Kb1 Bc1 Rdd2 Bf4 Rd3 Qb4 Rb3 Rg2 Ra5+ Kb6 Ra6+ Kb7 Ka1 Qb5 b1N Qb4 Na3 Rf2 Nb5 Qc3+ Kb1 Rh2 Re1 Rd2 Re2 Nh8 Bg2 Bc4 Bd5 Nhf7 Nd6#
3b4/PQNR1r2/r4q2/2K1B2b/1BB1N1nn/3P3R/BPRbn2r/kr1r3n w - - 0 1 illegal: No proof kernel
b3N2r/3R2bR/1bP2P2/Nr2N2B/bqn1r1Q1/krBK1Pn1/1R2qN2/3b4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 g4 Ke7 b4 Kd6 c4 a5 f3 h5 b6 a4 b7 d3+ Kd2 a3 f6 a2 g5 h3 g6 h4 b5 Kc5 b6 Kb4 c5 d5 c6 e4 g7 e3+ Ke1 e2 Kd2 e1R Qc2 d4 Bb2 h2 Ne2 h3 Ng1 Ra5 Qc1 Ne7 g8N Nd7 b8R Ne5 b7 Qd6 Qc2 Bg7 Bg2 Nf5 Qd1 Re4 Nh6 Ng3 Nf5 Rb5 Na3 Qc5 Rc1 a1B Nc4 Qe7 Qe2 Ka4 Rc2 Qb4+ Bc3 Kb3 Na5+ Ka3 Rb2 Nc4+ Kd1 d2 Kc2 d1B+ Kd3 Bb3 Nd6 Ba4 Rd2 Bb2 Ne8 Bc1 Rb2 Be3 Ra8 Bf2 b8N Bb7 Ra7 Ba8 Nd7 Be3 Qd2 Bf2 Qf4 Be3 Ne2 Bf2 Rd1 h1R Ng1 h2 Nh3 Rhe1 Qf5 h1Q Ne5 Qg1 Rdd2 Rb1 Qg4 Be3 Nf2 Qe1 Rbc2 Rb2 Bh3 Rb3 Rb2 Bf4 Nd7 Bc7 Ne5 Bb6 Re7 Bh6 Rh7 Bg7 Rd1 Ba7 Qd7 Bb7 Kc2 Ba8 Bg4 Bb6 Bh5 d3+ Kc1 d2+ Kc2 Qg1 Qg4 Qf1 Re1 Qh1 Re3 Qf1 Rd3 Qe1 Rd7 d1B+ Kd3 Qe2+
k4b2/qb1b3B/1P3NQR/3Pn2q/4r1bB/NP1n3R/r1n1nn2/3KN1NB w - - 0 1 illegal: No possible last move
1Kn1B2R/N2bb1bP/6P1/r3b3/R1q1N1q1/r1NP2qN/q4q1R/4knBQ w - - 0 1 illegal: No proof kernel
8/r5P1/6r1/BnR2R1B/knNb2N1/BbQ1b1PN/1Pbq1b1K/2N1rr1q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 f4 a5 Kf2 h5 Kg3 d5 c4 Kd7 g6 e5 c5 a4 b6 Kc6 b7 d3 g7 Kb5 f5 e3 c6 d4 f6 e2 c7 e1B+ Kh2 a3 f7 a2 g3 e4 Qd2 e3 Nf3 e2 Ng5 h4 Kg1 h3 Nf3 h2+ Kg2 Nf6 Ng1 Bf5 c8N Nd5 Qf4 d2 Nd6+ Ka4 Qe5 d1B Ne8 d3 Bd2 Nc7 Nf6 Nb5 Nh3 Nc6 b8N Ra7 Nbd7 Bc5 f8B Be3 Ba5 d2 Ba3 Nb4 Qc7 Be6 Ne5 Rh6 Nd3 Beb3 Qc1 Rg6 Qc5 B1f2 Qc1 e1B Be2 Bg1 Bh5 Bc5 Ng4 Bge3 Rf1 h1R Rf6 B1f2 Rf5 Rg1+ Kh2 Qd5 Bd8 Rf1 Ba5 Bcd4 Qc4 Qa8 Qc5 Be2 Qc8 d1Q Nd2 Qc2 Qc6 Bd1 Rc1 a1R Qc5 Bf3 Qc7 Be4 Qc6 Qc3 Rc2 Rae1 Nc1 Qd3 Qc4 Qe2 Qd3 Qc6 Rcc5 Qd1 Qc3 Bec2 Nc4 Qd2 Rf8 Qf3 Rff5 Qh1#
B1r2qqq/2kPr2N/PR1Nb3/B3KB2/3P1n1b/R2N1rnr/2q4N/4Qr2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 b5 g4 h5 a4 h3 d4 h2 d6 h4 a5 b3 f6 b2 a6 b4 g5 b3 f5 h3 f7 c4 f6 c3 g6 c2 g7 Nh6 g8B Be7 Nc3 b1R Bf4 c1R Bg3 b2 Bh4 Qf8 Nge2 Nf5 Ng1 Ng3+ Kd5 e4 Qd3 e3 Bg5 e2 Qd2 e1Q Bh7 Rg8 Nb5 Rc3 Ra3 Rf3 Bg2 Nc6 Bf5+ Kd8 Qf2 Rg7 Bd2 Ne5 Qe3 Qc1 Qe1 Ng6 Bb4 Nf4+ Ke5 Be6 d7 Qc6 Nd6 Qc2 Bd2 Qg8 f8N Rc8 f7 Kc7 Ng6 Bh4 f8N Rd1 Bb4 b1Q Nh7 Qba2 Bc3 Qf8 Bb4 Rdd3 Bd2 Rf1 Nf3 Rb3 Rg1 h1Q Nh2 Rd3 Ba8 Rdf3 Ne7 Qab3 Nc6 Qbc4 Nb4 Q4a2 Ng4 h2 Nd3 Qab3 Rg2 Qb8 Re2 Qg1 Bb4 h1R Re3 Rh3 Nh2 Qh8 Bd2 Qb4 Rb3 Qa3 Rb6 Qb4 Nb7 Qbf8 Nd6 Ne4 Bb4 Qg5 Ba5 Ng3 Nb4 Qgd8 Ra3 Qfg8 Nd3 Qe7 Bc3 Qef8 Ba5 Re7+
k2N4/1bPBNb1q/4qPNR/2brb1n1/3bBQ2/3P1r2/1RK2Bnq/2B3q1 w - - 0 1 illegal: No proof kernel
rb1Q1qbN/1PR4r/1N6/B2BK1P1/2bN1PRB/4q3/br2rNr1/n1kn4 w - - 0 1 illegal: No possible last move, all moves rejected
Br1RBnBq/1b4r1/2N4q/b1P3BP/1Rr5/1br2nK1/RqQPk1N1/7q w - - 0 1 illegal: No proof kernel
5k2/r3q1R1/3NQ1rb/1P2P1n1/b2bRr1K/q2N1BBB/r1q1PBq1/n3N3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 h5 b4 a5 c4 d5 g4 f5 c5 a4 g5 d3 g6 a3 g7 a2 c6 h3 Kg3 h4+ Kf3 d2 b6 f4 b7 h2 c7 h3 Nc3 d4 Bb2 d3 Bc1 Rh7 Qb3 d1R Qe6+ Qe7 Kg4 d2 Na4 f3 Ba3 f2 Kg3 Nd7 b8B Nc5 Qc6+ Bd7 c8B Nf6 g8N Nb3 Ba7 Bh6 Kh4 Ne4+ Nf6+ Kf8 Nc5 Ng5 Qe6 Ba4 Bg2 f1R b5 Rf2 Nf3 Rg1 Re1 a1B Ne8 d1Q Nd6 Qc2 Bb4 Bd4 Nd3 Na1 Bd2 Rg7 Bf4 Rg6 Bb6 Ra7 Bg3 Rgf1 Rg1 h1Q Rc1 h2 Nfe1 Rf7 Bh3 Qg2 Bb7 h1Q Bf3 Qhh2 Rb1 Rf5 Rb4 Rf4+ Bg4 Qa8 Rc4 Qhg2 Bc5 Bc3 Re4 R1f3 Bcf2 Bd4 Nb2 Ra3 Nbd3 Rff6 Bh5 Ra2 Bf3 Rf4+ Qg4 Qd5 Kh5 Ne6 Nb2 Rgf6 Kh4 Qdc5 Bh2 Qf1 Nbd3 Qa3 Rg3 R4f5 Qg6 Qg2 Rgg4 Rg5 Bhg3 Rf7 Qf6 Rg7 Rg6 Ng5 Qf5 Rf6 Qe6 Rgf7 Rg7 Rg6 Nf5 Rff6 Nd6 Rf4+
2Bb4/Nb1Bb1nr/1b1nBQP1/3K2B1/P2P2N1/N3qr2/1qrk4/Rqr4R w - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 Kd7 Kf3 Ke6 Ke4 h5 g4 b5 a4 f5+ Ke3 Kd5 d3 c5 e6 c3 e7 h4 e8N b3 g6 b2 g5 f4+ Kf3 Kd4 e4 c2 g7 h3 e5 b4 g6 h2 e6 b3 e7 c4 Bg2 c3 Ra3 Nh6 g8B Qb6 Nd6 Na6 e8B Nc7 Ne4 Ne6 Qd2 Rh7 Nf2 Be7 Bf1 Bb7+ Bc6 Nf5 Ra1 Nd6 Nd1 Rc8 Ne3 Ng7 Na3 b1Q Qf2 b2 Bd2 c1B Qg3 c2 Kg4 f3 Kf4 f2 Bh3 f1R+ Qf3 Qa2 Bge6 b1Q Bcd7 Qab2 Ng4 Rc5 Be3+ Kc3 Bc8 Bd2 Qf2 c1B Nf3 Be1 Qh4 Bf2 Nd4 Rc4 Ke5 Q6b3 Bh6 Bcg5 Nc6 Bb6 d4 Rf3 Na7 Kd2 Bcd7 Rc6 Bc8 Qe3+ Kd5 Bed8 Bcd7 Bgf6 Bg5 Bfe7 Rf1 h1R Rg1 Rh2 Rh1 Re2 Qf2 Rg3 Qf6 Rf3 Bf1 Re1 Bb5 Rec1 Bc8 R6c2+ Bc6 Ba6 Bc6d7 Bb7+
1Bk2q1b/n1bn3n/4rP2/5nRP/3N4/1N1Nq2B/1NQPBrq1/1q2KbR1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 h4 g5 a4 c5 a5 b5 f6 e5 h5 b3 f7 e4 d6 b4 a6 c4 f5 e3 a7 c3 Bd3 c2 Nc3 g3 Nb5 g2 Ra6 b2 Be2 b1N Nc7 g4 Ne6 g3 Nh3 g1B Ra1 g2 Ra6 b3 Bf1 b2 Ra1 e2 Ra4 Nc3 Rf4 b1Q Nf2 Qa2 Bb2 c1N Qc2 Nb5 Nd1 Nb3 Be5 N3d4 Nb2 Nf6 Rg4 Rh6 Rg5 Ba6 Nf4 Bh2 Kf2 Bg7 f8N+ Ke8 Qc5 Bh8 Nd7 Nh7 Qc2 Re6 Nc5 Qf6 d7+ Kd8 Nd5 Qe7 Nb4 Qd6 Bf4 Kc7 d8N Nd7 Ndc6 Rf8 a8B Kc8 Nb3 Na7 Bg3 Rf7 Be5 Qf8 Bb8 g1Q+ Ke1 Qe3 Rhg1 Bc7 Bh3 Qe4 Kf2 Bb5 Ne5 Qg4 Bf3 Qe4 Nbc6 e1Q+ Kg2 Q1e2+ Kg3 Q2d3 Kf2 Qg4 Ke1 Qg2 Bfg4 Qc3 Bd1 Bf1 Be2 Qe3 Ned3 Rg7 Rg3 Rg4 f6 Rf4 Rg5 Nf5 Ncd4 Rf3 Kd1 Rf2 Ke1 Qb1+
1RB1nr2/2q1b1k1/K1R1P3/Pn4r1/Q1bR3n/1RP1B1n1/5r1N/rq1B1b1N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 f5 Kd3 Kf7 Kc4 g5 Kb5 d5 h4 f4 a4 b3 e4 d3 a5 f3 c3 f2 e6+ Kg7 e5 d4 e7 g4 e8B b2 e6 d2 Qc2 d1N Nh3 g3 Qd3 g2 Qe4 g1R Ng5 d3 Nf7 d2 Nh6 Ne7 Be2 f1B Ng4 Ng6 Ra3 Be7 Rb3 Ne3 Qa4 d1R Nd2 b1Q Ne4 Na6 Nef2 Qc7 Bd7 Rf8 Nh2 Nf5 Be3 Rg5 Rg1 b6 Rg4 Rb8 Nh1 Ng3+ Bc5 Rf2 Rd4 Bb7 Bc8 Bd5 h6+ Kf8 h5 Nh4 h7 Kg7 h8R Re1 Qa1 Bc4+ Ka4 Ra8 Bd1 Rb8 Rhd8 Ra8 R8d6 b5+ Ka3 b4+ Ka4 Rb8 Rc6 Ra8 Bd6 Rb8 Bf4 Ra8 Be3 Rb8 Ra3 b3 Qa2 b2 h6+ Kf8 h7 Kg7 h8R Ra8 Bb7 Raf8 Rb3 Qa1 Rg4 b1N Bc8 Na3 Rd4 Qb1 Qa1 Nc5+ Kb4 Nb5 Qa4 Nce4+ Rc5 Ned6 Rc6 Bd5 Kc5 Qd7 Kb6 Qc7+ Ka6 Bdc4 Rb6 Ne8 Rb8 Rg6 Rh5 Rg4 Rc5 Rg5 Rc6 Ree2 Bb7 Ra2 Bc8 Ra1
1R3Nk1/BBr3B1/1nP2qn1/2Pr4/3Br1br/N3R2q/2q1R1nP/1Q2n1bK w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 dxc5 exf4 Kf2 a5 Kg2 f5 e4 Kf7 b4 d5 c4 g5 e5 f3+ Kf2 f4 b6 g3+ Ke1 a4 c6 g2 Kf2 g4 b5 g3+ Ke1 a3 b7 a2 b6 d4 Be2 f2+ Kd2 f1Q Ba3 d3 Nc3 f3 Ke3 f2 Kf3 d2 Rb1 a1R Nh3 g1Q Nf4 g2 Ng6 Bc5 Nb5 Ra7 Nf8 Nd7 b8B Rc7 b7 Nb6 Ba7 Ne7 b8B Ng6 e6+ Kg8 e7 Rh4 Bb2 Ra4 e8R Qf6+ Kg3 Bd7 Bd4 Bg4 Na3 Rb4 Qc2 d1R Re3 Rd2 Qd3 Qd1 Rb3 Qgf1 Qb1 g1N Rb2 Nf3 Rg1 Rh8 Rg2 Rh4 Bd3 Qa4 Bf5 Qd3 Bc8 Qac2 Bb7 Ne1 Rb3 Rf7 Bf4 Rc7 Bh6 Qdf5 Bg7 Qh5 Bc3 Rd5 Ba1 Bd4 c5 Qh8 Re8 Be3 Rb8 Re4 Bd4 Bd2 Rf3 f1N+ Kf2 Ne3 Kg1 Qh6 Rgf2 N3g2 Re2 Be3+ Kh1 Bg1 Rc3 Qe3 Rd3 Qef3 Rde3 Qh3
1B6/R2bKQ1P/Rnb3r1/7q/n1rRP2N/3Nbq2/rRnbP1B1/1n1kN3 w - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f3 b5 axb5 e4 fxe4 c5 Qd3 cxd4 Qd2 Rh6 Qd1 Rh8 Kf2 Ke7 Kg3 Kd6 Kf4 Kc5 Ke5 Kc4 b4 a5 h4 g5 b6 d5 b7 f5 b5 a4 h5 d3 h6 a3 h7 a2 b6 d4 c3 f4 Rh3 g3 Rh1 d2 Bh3 g2 Bd7 d3 Ke6 g4 Rh5 g3 Nf3 g1B Ne1 g2 Rh1 f3 Nc2 Kb3 c4 f2 c5 f1Q c6 Qh4 c7 Ne7 Kd6 Nd5+ Ke6 Na6 b8N Bb4 b7 Nb6 Rh2 Qh5 Nc6 Be3 b8R g1R Ne5 Nc5+ Ke7 Rg6 Bh3 Qff3 Qf1 d1B Bg2 d2 Nd3 Bd7 c8R Nca4+ Rc5 Ra7 Nce1 Rc8 Rh3 Bc3 Ra5 Rc4 Ra6 Bc2 Ba3 d1N Bd6 Bcd2 Rd8 Ra8 Bb8 Ndc3 Rh1 Bc6 Rd4 Bd7 Na3 Bc6 Nb5 Nb1 Nd6 Bd1 Nf5 Bd7 Nb4 Kb2 Nh4 Kc1 Rg1 Bc2 Ra7 Kd1 Nbd3 Nc3 Ne5 Qf2 Rc7 Kc1 Rd6 Bca4 Rd4 Bac6 N1f3+ Kc2 Rh1 Na3 Nd3 Ra5 Rb1 a1N Ra7 Qg3 Qf2 Raa4 Rb5 Qh3 Rhb1 Qg3 R1b3 Kd1 Rb2 Nab1 Rba5 Nc2 R5a6 Ra2 Nfe1 Nca4 Qf7 Qgf3
nK1Bqk2/1B1Pq1q1/1b6/1Pn4r/NRP3b1/3bQBnq/1R3r2/Nn1R3R w - - 0 1 illegal: No proof kernel
3rq1bR/K2Pq3/2kN1P1P/1RqnRQBn/8/1RrN4/3Nrq1n/2bB2r1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 g5 Kd4 e5+ Kc4 c5 b4 a5 h4 a4 d4 e3 f4 a3 d6 e4 d5 e2 h5 e1N b6 a2 Kb5 c4 h6 c3 f5 g3 b7 c2 Be3 c1Q Na3 g4 Be2 g2 Bg5 g3 Nf3 g1R Qc2 e3 Rh3 g2 Bd1 e2 Nb1 Qe8 Kb6 Ra3 b5 Rc3 Nbd2 Nf6 Ka7 Nh5 b6 Qb2 f6 Be7 Nd4 Nf3 Nb5 e1R Qf5+ Re6 Rb1 Nh2 Re3 Qb4 Re2 Qc5 Re5 Qf2 Rb3 a1Q+ Na3 Qb1 Nac4 Qe4 Nb2 Bf8 Qf3 Qh7 Nd3 Qhe7 Qf4 Na6 b8R Nc7 Qf3 Na8 Qf5 Ba6 Rc8 Bc4 Rc5 Rg8 b7 Nb6 b8R Rh8 Rcb5 Qc5 Qg6 Rg8 Rf5 Re2 Re5 Rh1 Qh7 g1Q Qe4 Qgf2 Qf3 Qcc8 Ra8 Rg1 Qf5+ Kd8+ d7 Kc7 Rb8 Kd6 Ra8 Qcc5 Rb8 Kc7 d8N Rh8 Nb7 Rg8 d6+ Kc6 d7 Rh8 Re3 Bg8 Re5 Qc8 Qf4 Bf7 Rd5 Qe4 Rd4 Qcd5 Nc4 Ba3 Nbd6 Qe7 Qe5 Qc5 Re4 Bc1 Qf5 Qg8 Rf8 Bd5 Re5 Qg6 Rf7 Rd8 Rh7 Qge8 Rh8 Bg8 Nd2 Nd5+
n1r4q/1P3b2/2B1NNQn/7n/1b1r1PP1/NN1R2R1/r1q1knr1/1K2Bb1B w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 c4 Kg5 b4 Kf4 c5 e5 f6 h5 f7 d5 c6 a5 b6 d3 b5 a4 b7 d4 b6 a3 f3 h3 c7 h4 Rh2 e4 Rg2 h2 Qc2 h1N Re2 e3+ Kd1 d2 Qc5 a2 Kc2 d1Q+ Kb2 h3 Re1 h2 Bd2 d3 Na3 Ra4 Qc2 Be6 c8B Na6 b8N Nh6 b7 Nc7 Rc1 a1R Nd7 Ra2+ Kb1 Ng3 Bb4 h1B Qb2 e2 Qg7 Ke3 f4 d2 Qg6 Bg2 Nf3 Na8 Nf6 Nh5 Bd7 Qc8 Ba5 Rd4 Bc6 Qb8 Bc3 Bb4 f8N Bf7 Ne6 Qa4 Red1 e1R Bd3 Rg1 Bde4 Ke2 Bed5 Bh3 Be4 Rg3 Rg1 d1N Nd2 Rhd8 Bh1 Nf2 Rcd1 Bf1 Rg2 Rh3 Rg3 Rh2 Qg5 Rg2 Qg6 Qa6 Nb3 Qc4 Be1 Qe5 Nd7 Rc8 Rdd3 Qh8 Nf6 Qc2+
n1RQ4/P2rq3/KrN2P2/2PRbN2/bq2R3/nkN5/3B1rBq/1b1bR2r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 e5 Kc4 b5+ Kd5 g5 a4 d3 f4 e4 h4 e3 c4 b3 c5 d2 f6 b4 Kc4 Ke6 Kb5 Kd5 f5 g4 a5 g3 f7 b2 f6 b3 a6 g2 h6 e2 h5 e1Q h7 Nh6 Ra2 Qde7 Qc2 d1B Rh4 Nf5 h6 Ne3 Kb6 Qb4+ Kc7 Nc4 Rg4 Na3 Ne2 g1Q Bd2 Qh2+ Ng3 Bb7 Rh4 Bc6 Ra1 Ba4 Re4 d6+ Kc8 Nd7+ Kc7 Rb8 a7 Rb6 Nf5 Rg8 h8R Rg2 h7 Rf2 Qc1 Bh6 f8R Bf4 Bg2 Bg3 Nd4 Be5 Nc3+ Kc4 Rc8 b1R Rhd8 b2 Nf5+ Kb3 h8N d5+ Nd6 d4 Ng6 Qe6 Ne7 d3 Nc6 Qe7 Bh3 Bc2 Qd1 Rc1 Bg2 b1B Qh5 Rh1 Qe8 Bd1 Qh8 Rb5 Qf8 Nb6+ Kb8 Qe8 Kb7 Na8+ Ka6 Qe7 Nf5 Rb8 Rd5 Rb7 Bc1 d2 Qe8 Bg4 Qd8 d1R Bd2 Rd7 Ra2 Rde1 Rc2 Bd1 Rc1 Ree2 Bf4 Rb2 Bd2 Bh5 Rg1 Bd1 Rge1 Qc4+ Nb5 Kc2 Bf3 Qd4 Nc3 Rb6+ Ka5 Kb3 Bg2 Rbb7 Ka6 Qb4 Bh6 Rb5 Bd2 Rb6+
1k4BK/NB2r1r1/3R1Qbn/n1q1BbpP/N1PqPb2/3q4/4r1N1/1R4nN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 d5 Kg3 Kd7 Kf4 Kc7 c4 a5 b4 f5 h4 a4 b6+ Kb7 b5 g6 e6 d3 Ke5 d2 h5 g5 e7 f4 e8B d4 Nf3 d3 Nh4 g3 Nc3 a3 Ne4 a2 Ng2 f3 Nf2 Nh6 Bf7 Qc7+ Kf6 Bd6 Kg7 Re8 Rb1 a1R Bb2 R1a7 Be5 Re7 Kh8 Bf5 Bg8 Nc6 e4 Kb8 b7 Na5 Qa4 d1Q Qa1 d2 Rg1 Bg6 Nh1 f2 Be2 f1B Bg4 Rf7 Bc8 Be2 Rf1 Qb3 Rf6 Qc5 Qc3 Bc7 Rd6 d1Q Qf3 Qc3 Qf6 Bf1 Be6 Q3d4 Bd5 Re7 Bc6 Q1d3 Bcd5 Bb6 Bc6 Kc7 b8N Be2 Bb7 Bg4 Nc6 B4f5 Nb4 Kb8 Nd5 Bd8 b6 Bc7 Nc3 Rg7 Na4 Re7 Bc6 Rg7 b7 Re7 Ne1 g2 Bcd5 g1N Ng2 Ra6 Bc6 Rb6 Bcd5 Rb2 Bc6 Re2 Bcd5 Ka7 b8N Rg7 Bb7 Re7 Na6 Rf8 Nb4 Rff7 Bc8 Kb8 Nc6+ Ka8 Na7 Rg7 Bb7+ Kb8 Ra6 Re3 Bf4 Be5 Rd6 Re2 Bg3 Bf4 Bh2 Be3 Be5 Bf4
4bk1q/P2BNP1q/BQ2rBqr/N4b1p/n2B1n1b/6r1/RP3K1R/4nN2 w - - 0 1 illegal: No proof kernel
b3BnR1/B1b2nK1/4PP2/kp1rbQ2/8/br1N2Pr/1N1bN2R/2R2nqR w - - 0 1 illegal: No proof kernel
BN1N4/3n1rpb/b1r1PN2/K1PPB3/3R2bN/bb3R2/2rQ1q2/3Rn1nk w - - 0 1 illegal: No proof kernel
1Br2K2/1b1Rp2B/nnr1b1Pn/2q2NQP/4k1P1/1RRNBr2/5b2/2n1n2R w - - 0 1 illegal: No proof kernel
3B1b1k/1P3R1p/1B1Q2n1/rN1Knqr1/2rrP1bR/3b1rP1/2N3N1/2n1B2B w - - 0 1 illegal: No possible last move
1qq1k1Nr/2Q5/R1Nn4/2b4K/1nnnb1PB/N3P1N1/1BP1B1pn/b3R1r1 w - - 0 1 illegal: No proof kernel
q1qb4/2r1NB1b/2R1q3/2r4P/P2b1N2/1PBq2BQ/1R1pq2N/nnkN1K2 w - - 0 1 illegal: No possible last move, all moves rejected
4BBb1/kNR3q1/r2qbr2/BP1r3N/1p3nb1/n2N2RN/1b1KPP2/4Q2b w - - 0 1 illegal: No proof kernel
2B1Q1b1/3Rr1q1/1r2qR2/bpn3kN/Pr6/N1n1q2r/N1r2KPP/1RBN4 w - - 0 1 illegal: No possible last move
1N1kBR2/r1br4/1B2P1Pr/B1qQ1r2/nnB3pK/R1r3P1/3bR3/3qN2b w - - 0 1 illegal: No possible last move, all moves rejected
k3nq2/1r1brr2/1r1P1B1q/1BBR1R2/1n2P1Q1/KP1b2p1/B2bNrRN/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 e4 Kd7 d4 f5 Kd2 a5 Kc3 c5 h4 Kc7 b3 Kb7 Kb2 g5 d5 f4 e6 g3 e7 a4 e8B c3+ Ka2 c2 b6 a3 d6 g2 h5 g4 h6 f3 h7 f2 Rh5 g3 Bc4 f1B Rh6 Ra6 Nf3 g1R Be6 c4 Be3 c1R Bf4 c3 Bf5 c2 Bb5 Bd3 Rh5 Bh6 Bh3 Bd7 Rf5 Nc6 Nh2 Rf1 Nc3 Qf8 Be3 Nf6 Qg4 Ne8 Ne2 Rf2 Bf1 Ka8 Bc5 Bd2 Rb1 Rg8 h8B Rg7 Rb2 Re7 Bf6 Rd1 Rd5 c1Q b7+ Kb8 Qg8 Rb6 Qg4 Ka7 b8R Re1 Rb7+ Ka8 Ng1 Re3 Ne2 Ref3 Rc7 Be1 Rb7 Qch6 Rf5 Bd2 Ra7+ Kb8 Ra4 Rb7 Rd4 Ka8 Rdd5 Nb4+ Ka1 a2 Rc2 Rh7 Kb2 Re7 Ka3 a1R+ Ra2 Bc2 Bd3 Bd1 Bb1 Bc2 Nc3 Rb6 Bb5 Bd3 Ne2 Rf4 Bc2 Rc1 Bb1 Rc3 Rc2 Rb7 Ba2 Rc4 Be3 Rc6 Bc5 Rcb6 Rc1 Rh7 Rg1 R4f3 Rg2 Rf7 Rh5 Rf5 Rg5 Re5 Rf5 Ree7
r2R1q1B/1b2Q2N/b1p5/P1n2qRK/2kN2P1/B1bR3q/3P1qR1/3qr1nB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 f4 b5 a4 h5+ Kg5 e5+ f6 b3 g4 e4 a5 h3 d6 h2 d7 h4 f5 b4 Qf3 h3 Bc4 b2 Ra4 b3 Qd1 e3 Be2 Ne7 f7 Nec6+ f6 Nd4 Bf1 e2 Na3 e1Q Bg2 b1Q Qe2 b2 Nf3 Ba6 Rg1 h1B Nb5 h2 Ra3 Bg7 f8R Qf2 Rd3 Kc4 Qe7 Ne2 f7 Bc3 Rg8 Qf8 d8R Nd7 Nbd4 Nc5 Kg6 Qc2 Ng5 b1Q Nh7 Qd1 Bb2 Qbc2 Bc6 Bd5 Kg5 h1Q Rg2 Ng1 Kg6 Qh2 Kg5 Qhg3 Kh5 Bf3 Rg5 Be4 Ba4 Beb7 Bc6 Rg8 Be4 c6 Ba3 Rg6 Bf3 Re6 Bb2 Qg7 f8B Re1 Ba3 Qg8 Bg7 Qf8 Bh8 Qcb1 Rh2 Qb5 Bh1 Qbb1 Rg2 Qbc2 Rf3 Qcf5 Rd3 Qh3+
1nB5/bQr3n1/RPn4p/1qn3bP/1rB5/nPRq1Bk1/6N1/1bK2RNR w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 h4 Kd7 d4 Kd6 e4 f5 g4 a5 g5 c5 h5 h6 g6 a4 g7 f3 Nc3 a3 Kb1 f4 Be2 f1N Bc4 a2+ Kb2 f2 Nh3 f3 Kc1 Bf5 Rg1 Ne3 Nf4 f1N Nce2 f2 Qd3 Ne7 g8B Ra4 Be6 Nd2 Rf1 Rb4 Ng2 Nec6 Ng1 Rh7 Bc8 Rc7 Qe2 Bh7 Qf3 Nf5 b6 Ng7 Rb1 a1N Qf7 Qe8 Qf3 Nc2 e5+ Ke7 e6 Kd6 e7 Ne4 Ra1 Na3 Qf7 Qd7 e8B Qh3 Bed7 Qd3 Bg4 Be7 Be2 Bh4 Bf3 Bg3 Re1 f1Q Ra2 Ra7 Qb7 Qfe2 Rf1 Bf5 Qa6 Rc7 Qb7 Bh2 Rc2 Bh7 Rc3 Bf5 Bb5 c4 Ba6 Nc5 Bb5 Ke7 d6+ Kf6 d7 Kg5 d8R Bh7 d5 Bd6 Nh4 Kf4 Ng2+ Kg3 Rg8 Be5 d6 Bg6 d7 Bd6 Rc2 c3 d8R Bh7 Ra2 c2 Rge8 Bf5 Re3 Bg6 Ba6 Qb5 Rc3 Qed3 Ra1 Be5 Rd4 Bh7 Rh4 Be4 Rh1 Bf4+ Kb2 c1B+ Ka2 Bcd2 Kb2 Be5 Ra2 Bg5 Raa1 Qd6 Ra2 Bb1 Ra1 Qdd3 Ra2 Qa4 Bc4 Qb5 Ra1 Nc2 Ra4 Na3 Ra6 Re7 Nh4 Nbd7 Qa8 Bb8 Ng2 Ba7 Qb7 Rf7 Bcd5 Ndb8 Bc4 Bh4 Kc1 Rc7 Ra5 Bd8 Ra6 Bg5+
2Bn3N/2RRqR1P/4N1Q1/6rn/k1PK4/1n2r2r/1PB3bp/b1BrrRq1 w - - 0 1 illegal: No possible last move, all moves rejected
3BRR2/q1qq3P/1N6/P1p2B2/1N2NQ2/b1r1rPK1/bB4bq/nknqN3 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 Kd7 a4 Kd6 h4 g5 f6 b5 h5 e5 f7 g3 h6 g2 h7 b3 a5 g4 f3 b4 Kf2 b2 Ra2 e4 Ra3 e3+ Kg3 b3 Bb5 e2 Qf1 e1Q+ Kh2 Qd7 Be3 Nc6 Ba6 Qd1 Nd2 b1Q Qf2 b2 Qg3+ Ne5 Bf1 Ne7 Ba6 Nf5 Ne2 Qbc1 Rb3 b1B Nf4 Nd3 Re1 Ba2 Rb8 c6 Qh4 g3+ Kh3 g1Q Ng2 Be7 f8N Qh2+ Kg4 Qc4 Bb5 Nc1 Ne4+ Kc7 Ba4 Ba3 Bc2 Rg8+ Bg5 Ne3+ Kf4 Rg7 Bf6 Re7 Bd3 Nc2 d6+ Kd8 d5 Na1 Re3 Qcc2 Ne1 g2+ Qg3 g1Q Bb2 Ke8 Re2 Qga7 Re3 Kf7 Re2 Qdc7 Nd7 Qa4 Nb6 Bh3 Rg8 Re5 d7 Bg2 d8B Rc8 d6 Ke6 d7 Qd4 Rf8 Q4a4 Na8 Kd5 Bc2 Kc4 Nb6+ Kb4 Bd3 Kb3 Kg4 Rc5 Qf4 Rc3 Re3 c5 Bb1 Qg1 Kg3 Rb8 Nf2 Qh1 Ree8 Re3 Bf5 Qh2+ Kg4 Qb5 Ne4 Rb7 Be7 Qa4 d8N Qad7 Nc6 Rc3 Bd8 Re3 Nd3 Kc2 Ne1+ Kb1 Nb4 Rc3 Nc4 Rb5 Nb6 Re3 Nc6 Rbb3 Nb4 Qh5+ Kg3 Rbc3 Na6 Qh1 Nb4 Qh2+
1N2B2k/1KbR1r1P/1Q2b1PB/B1Nn4/b1n1bN2/rB2qR1n/1P1q3p/6b1 w - - 0 1 illegal: No proof kernel
N4rn1/1n3PRn/qqPbr3/Q1R1R1r1/5NRK/p2P3n/B5b1/4nNBk w - - 0 1 illegal: No proof kernel
3BR3/r1B1np1b/4qRNb/1Rqq1P1b/B2Nk3/r3Pb2/1b2K2P/1R1n2Q1 w - - 0 1 illegal: No possible last move, all moves rejected
BB1rN3/r1QP3q/nPB5/N1p2q2/nq2R1n1/5q1B/KR2P3/N2bq1bk w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Kd7 Kd2 Ke6 Kc2 Kf5 b4 Kg4 Kb2 Kg3 b6 h5 b7 a5 b5 f5 d5 c3+ Ka2 f3 g6 h4 g7 c2 b6 a4 d6 f2 Ba3 c1Q Qd5 h3 Qf7 f4 Nc3 f3 Nd5 h2 Nf6 Ra7 Bb2 a3 Ne8 Bf5 Rb1 Nh6 g8B Na6 b8N Qh4 Nc6 Qb4 Na5 Bc2 Be5+ Qcf4 d7 Bd1 Qc4 Ng4 Bd5 Bc5 Ba8 c6 Rb2 Rg8 Nc7 Rd8 Ne8 Be3 Bb8 Qe5 Nh3 c5 Nf4 Qf5 Qd5 Bd4 Qc6 Be3 Rg1 h1Q Qc7 Kh2 g3 Bd4 Bh3 f1Q Nd5 f2 Ne3 Qfg2 Nc2 f1N Na1 Nfe3 Rf1 Nc4 Rf4 Qf3 Re4 Qhe1 Bc6 Bg1 Ba8 Kh1 Bc6 Nge3 g4 Qh7 g5 Ng4 g6 Qf5 Rd2 Nb2 g7 Na4 g8B Qg3 Bgd5 Qd3 Rb2 Qdf3 Kb1 a2+ Kc1 Bh2 Ba8 Bb3 Bdc6 Bc2 N1b3 a1Q+ Rb1 Qac3 Rb2 Bd1+ Kb1 Bg1 Na1 Qd2 Ka2 Qe1
R2nb3/2p3B1/B2rq2n/nQRb4/PKP2k2/6N1/1B1PBq2/n1rN1Nqn w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 f5 Nh3 d5 Ng1 Bh6 gxf5 dxe4 Qf3 g4 Qd1 Bg5 hxg5 Ra4 Nh3 Ra6 Ng1 Ra8 f4 Kd7 a4 Kd6 f6 b5 f7 e5 f8N h5 c3 g3 f5 b3 f6 b2 g6 e3 f7 e2 g7 h4 Ra2 g2 Nd7 h3 f8B+ Qe7 Na3 b1N Nc2 e4 Nc5 Ke5 Nd7+ Kf4 Ne5 h2 Ngf3 g1Q Ba3 b4 Nh4 b3 Ng4 b2 Qc1 Qe6 Nge3 Bd7 Nhf5 Be8 Ng3 Ra6 Nd1 Nc6 Nce3 Nh6 g8B Nd8 Bg7 Rd6 Qc2 Rh7 Qd3 Rh8 Qb5 Rh7 Bc5 Na3 Bcd4 b1B Rc2 Nc4 Bf7 Na5 Bh5 Ba2 Bg4 Qb3 Bc8 Qe6 Ba6 Bd5 Rc1 Qg2 Rg1 Qh1 Kf2 e1N Be2 Rh8 Nef1 Nc2 Bdf6 Na1 Be5+ Kg5 Ke3 Qg2 Kd4 h1N Kc5 e3 Bef6+ Kf4 Kb4 Qf2 Rg2 Rf8 Rh2 Qg1 Rh5 Rh8 c4 Qf2 Bb2 Rf8 Rb1 Rf5 Bg4 e2 Bf3 e1Q Be2 Rf8 Rg5 Bf3 Rc5 Bd5 Ba3 Qg1 Rb3 Qef2 Bab2 Kg5 Re3 Rf3 Re4 Rc3 Rf4 Rc1 Rf8 Bc6 Rg8 Kf4 Re8 Ndb7 Rc8 Nd8 Ra8 Be8
3RN2B/1P2Q2r/2RB1q2/b2PK2N/k2Pbnbb/1p3qRr/2n1R1Bq/3b4 w - - 0 1 illegal: No proof kernel
3kNKB1/nPr4R/n2p1rb1/b4bqB/1b1PNq2/b3NR1P/B3N3/1r3Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ba3 Qb6 axb5 Qf6 b6 Qg5 b5 Qd8 Bb4 cxb4 Kf2 g5 Kf3 a5 Kg4 b3 Kf5 f6 Kg6 g4 e4 g3 d4 b2 c4 g2 e5 a4 c5 f3 e6 a3 e7 a2 h6 f2 c6 d6 b7 f5 c7 f4 h7 f3 b6 Na6 b8N Bh6 b7 Bc1 Kg7 Bf5 Nd7 Rc8 Bc4 f1B Nc3 b1R Ne4 f2 Ne2 g1B Bd5 B1h3 Qf1 Bg6 Bc4 Ba3 Bd5 Rb8 c8B Qa5 Bb3 Qg5 Bc4 Bhf5 Be6 Rb6 Rc1 a1B Ba2 B1b2 Rc3 Bb4 Rd3 B2a3 Rf3 Nh6 Bg8 Ng4 Ba2 Rf8 h8N Ne5 Nf7 Rb5 Nh6 Nc6 Ng4 Rf6 Ne3 Rb6 h3 Bh2 Rg1 Na7 Rg4 Bg3 Rh4 Ra8 Rh7 Ba5 Nf8 Rb4 Bce6 Rb1 Bg8 Rc8 Ne6 Kd7 e8B+ Ke7 Qg2 f1Q Nc7 Bge1 Qh1 Qf2 Qf1 Beb4 Bef7 Qfg3 Ne8 Kd8 Kf8 Q3f4 Nf2 Bc2 Ne4 Rc7 Rh5 Re6 Rh7 Bf5 Bh5 Bg6+ N4f6 Bcf5 Ne4 Rf6+
2N5/Prkb3N/R1P1rb2/1b1r4/1pn3b1/2B1B1PN/2n1BRBq/Q1Kb3q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 b5 a4 h5 f4 d5 c4 Kd7 f6 e5 g3 d3 f5 d4 f7 b3 a5 b4 a6 e4 c5 e3+ Ke1 h4 c6+ Kc7 a7 b2 g6 h3 g7 d2+ Ke2 h2 f6 d3+ Kf3 e2 Ke3 e1R+ Be2 Be7 f8B Nh6 g8B Nd7 f7 Nf5+ Kf2 Ne5 Na3 b1B Nc4 Bd7 Ra3 Rh7 Nd6 Nc4 Ra6 Bf6 Nc8 Nfe3 Bg7 Nc2 f8N Qe8 Be6 Qh5 Nh3 Ba2 Rg1 h1Q Rf1 Rb8 Bh8 Rb5 Bd5 Rg7 Bg2 Rd5 Nh7 Bb3 Nb6 Ba4 Nc8 Rf7 Bg7 Bb5 Bh8 Qh6 Kf3 Re7 Rf2 Re6 Bg7 Rf1 Qe1 d1B Be3 Qh2 Qc3 d2 Qa1 Qh1 Ng1 Q6h2 Nh3 Bh4 Bc3 Bf6 Kf4 Re1 Bef1 Bg4 Be2 Be5+ Ke4 Bd4+ Kd3 d1B Bb2 Bf6+ Bbd4 Na5+ Kd2 Nc4+ Kc1 Rf1 Rf5 Rf4 Bc3 Rfe4 Rf1 Re7 Rf4 R4e6 Rf2 Re8 Nb6 Rb8 Nc8 Rb7
3Q1NBb/8/3R1r2/1b1qRrqk/B2nn3/Pp1PR1r1/2P2NK1/1Bb1B1bn w - - 0 1 illegal: No possible last move, all moves rejected
bQrrNq1N/2B1n2K/5q1N/4R2R/2r3PP/2q1b2P/B1B1B1pk/n1q3n1 w - - 0 1 illegal: No proof kernel
b1R1b1r1/2K1kBb1/1r1n3B/2R1q3/NPP4q/N1pqnrP1/2q1N2Q/3N1B2 w - - 0 1 illegal: No proof kernel
1qk2N2/2r2rBQ/7q/1bN3NP/P3bpP1/1b1nn1bR/1BBKR1rn/N7 w - - 0 1 illegal: No proof kernel
1N2N1n1/BK6/n1B1Qbbr/1N1Pq1P1/1R2nq2/p2b3r/R2B1Pk1/N1r2n2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 Kf4 b4 a5 d4+ e3 g4 h5 d6 e5 d5 a4 b6 e4 b7 h3 g5 h2 b5 a3 b6 h4 Kb5 c5 d7 h3 Qd4 c4 Bd2 c3 Bg2 c2 Bb4 c1R Ba5 e2 Nf3 e1Q Ng1 Be7 Nc3 Qc7 d8N Na6 b8N Bf6 b7 Bf5 Nf3 Rh6 Nd2 Bg6 Qb6 e3 Bf1 e2 Nb3 Kf3 Ne6 Qf4 Kc6 Ra7 Rg1 h1N Rg4 h2 Ng7 Ng3 Ra2 h1B Ne8 Ne4 Na1 Ra8 Bh3 Bg2 Rh4 Bf1 Bd7 Kg2 Qe3 Ra7 Kb6 Ra8 Nb5 Qc3 Bb4 e1N Bc6 Qce5 Bd2 Nf3 Qe2 Nh2 Qg4+ Qg3 Qe6 Bd3 Rf4 Nf1 Rh4 Nd6 Rb4 Ra7 Nd7 Ra8 b8B Qgf4 Ba7 Ne4 Kb7 Rd8 Nb8 Rd6 Qd7 Re6 Qc8 Re7+ Qd7 Reh7 Qe7 Rh8 Qf7 Rh3 Qe6 R8h6
3K4/1nn2BRr/r1R4B/1RP1p1P1/N2Nq1qk/Pn2r1b1/2q1QB2/3b2Bn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kd3 d5 g4 h5 f4 b5 c4 b3 g6+ Kf6 a3 b2 g7 b4 c5 b3 Ne2 h4 Rh2 h3 Be3 Nh6 g8R Na6 Nec3 Rh7 Na4 Qe8 Bf2 Nf7 Nbc3 b1N Rg7 b2 Ne2 Nd8 Bg1 Nb7 Qe1 Nd2 Rb1 e6 Rg2 h2 Rc7 h1N Rc6 Bd6 Rg3 Kf7 f6 Kg6 f5+ Kg5 f7 Kh4 f8B Bf4 f6 e5 f7 Qe6 Rf3+ Bg3 Bh6 Qd7 Bhe3 Ra7 Kc2 d3+ Kc3 Qf5 f8B Qe4 g5 Bg4 Rf7 Ra8 Rc1 b1R Bh6 Ra1 Bef2 d4+ Kb2 Bf3 Rg7 Rb1+ Ka2 Rb3 Rb1 Rc3 Rb5 Bg4 Kb2 Nb3 Qd1 d2 Qc2 d3 Nd4 d1Q Be2 d2 Bc4 Rf3 Bf7 Re3 Qd3 Nb4 Kc3 Na6 Kc4 Qb1 Qc2 d1Q Qd2 Be2+ Qd3 Qg4 Kd5 Qe4+ Ke6 Nc7+ Ke7 Ra6 Qc2 Qg4 Qb2 Qbe4 Qc2 Qc1 Qd2 Bd1 Qe2 Ne6 Kd7 Qcc2 Ke8 Nc7+ Ke7 N7a5 Kd8 Nb7+
1B2n1bk/bRN1b1qn/5Q2/p2Nn2K/1N4nr/1B2Pq2/rRP1P3/R3r1R1 w - - 0 1 illegal: No possible last move, all moves rejected
bBBR1B1K/1nrQ2R1/5P2/k2b2n1/r4BqP/Rr3NbP/p1q1Nn2/2b5 w - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 g3 b5 axb5 fxe4 Qd2 h5 Qd1 h4 gxh4 Bb7 Qd3 Ba6 Qd1 Bc8 Kd2 g5 c4 e5 b4 a5 f4 d5 c5 Kd7 f5 Kc7 c6 Kb6 c7 g4 f6 g3 h3 e3+ Kd3 a4 Qh5 e4+ Kc2 a3 Rh2 d3+ Kc3 a2 Kd4 g2 Ke5 d4 Ne2 g1Q Qg5 d2 Bg2 d1B Bh1 d3 Nbc3 d2 Qg6 Qg4 Qg7 Ra4 Rb1 Bb3 Ba3 d1N Ng1 e2 Nf3 e1R Qd7 e3 Rg2 Rh7 Ne2 Bb7 c8R B3d5 Rb3 Bh6 Rd3 Qf8 Rd8 Ba8 Rb3 Qc5 Rg3 Qgd4+ Kf5 Nc6 Rg7 Nf2 Kg6 Na5 Rc3 Nb7 Rd3 Ka7 b6+ Ka6 b5+ Ka5 Rc3 Qc8 Bf8 Rb1 Ra3 Rb3 Bg2 Bg5 Bh1 Nh6 Bg2 Nc5 b7 Nf7 b8B Nb7 b6 Qg4 Bf4 Qc7 Ned4 e2 Bh1 e1B Ne2 Nbd6 b7 Qc6 b8B Nb7 Ne5 Qc3 Be4 Qc2 Bf5 Nh1 Nf3 Bg3 Be4 Nf2 Bd3 Nfd6 Bf5 Nde4 Be6 Bh6+ Kf7 Ng5+ Kg8 Qgf5 Rg6 Re7 Rg7 Qg4 Kh8 Rf7 Qe8 Re7 Bc8 Rc7 Qd7 Nh7 B4d6 Bc1 Bf4 Ng5
N1rkr3/q3n1rP/B1R1B3/2n3P1/2N1pRB1/R1b1bb2/1P1n1B2/1b1qQK2 w - - 0 1 illegal: No proof kernel
q1nr4/R1bR3P/p2BN3/RbPQ2q1/r1b1n1N1/4qN2/B1P3b1/R2r1k1K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 dxc5 exf4 Kf2 Ke7 Kg2 Ke6 h4 Kf5 b4 Ke4 b6 g5 h5 f5 b5 d5 e3 d4 b7 g3 h6 f3+ Kh3 d3 h7 g2 Kh2 f4 b6 d2 Ra2 f2 Qg4 d1R Qe2 f3 Qd2 g4 Nh3 Nc6 b8R Bd6+ Nf4 Nce7 b7 Nf6 Bc4 f1B Ra5 f2 Ba2 Kf3 e4 Bc7 e5 Bc4 e6 f1B Qd5+ Kf2 Nd2 Ne4 Nf3 Bd7 Rc8 Bdb5 b8R Rg8 Rb7 g3+ Kh3 a6 Ra7 Rg4 Bd2 Qe8 Rd8 Nc8 e7 Rb8 Rd7 g1Q+ Ng2 Ke2 Bf4 Qe3 Bd6 Qg8 e8N Rf4 Qh5 Qd5 Nf6 Qa8 Qf5 Re1 Bb1 Bg8 Nh5 Nc3 Ra2 Nb6 Rh2 Rd8 Nf6 Nc8 Ra5 Ra4 Ba2 Bgc4 Rh1 Ne4 Qd5 Rc1 Kg4 Kf2 Nf4 g2 Ne6 g1Q+ Kh4 Qg8 Ng4+ Ke2 Rg1 Bh3 Rh1 Nc3 Kg3 Qgg5 Kh2 Ne4 Rd1 Ra1 Kh1 Rb1 Ne1 Kf1 Nf3+ Qe1 Rd3 Qee3 Rb3 Rc1 Rb1 Rd1 Ra1 Bg2+
1R3nbb/kBB3np/2R1PNb1/P3q2r/1Q1Kn3/q5P1/b1NBB2q/5Rr1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 e4 b5 d4 c5 a4 Kc7 d6+ Kb6 g6 f5 d7 f3 Ke3 c4 d5 c3 d6 c2 g7 f2 e5 b3 Rh4 b2 Kd4 f4 Bd3 f1N Qd2 f3 Qe1 f2 Be2 b4 Nc3 b1B Bc4 b3 Rh2 b2 Ba6 Ne3 Nh3 f1Q Ne2 Qf5 Qd2 Qh4+ Nhf4 Ba2 d8B+ Ka7 d7 b1B Bc7 Nf6 g8B Ne4 d8R Bg7 Qb4 Nd7 Nd5 Nf8 Bd2 c1Q Bb7 Be6 Rb8 Qa3 Nf6 Qhf2 Bf7 Rg8 Rh6 Bh8 Bh5 Rg4 Rg6 Bg8 a5 Rg5 Bf3 Rh5 g3 Qh2 Bg4 Bd3 Rf1 Bc2 Rc8 Rb8 e6 Bd3 Rg5 Qf4 Rc5 Qg5 Rc6 Nf5+ Ke5 Bdb1 Nd4 Bc2 Be2 Ng7+ Rf5 Bd3 Nc2 Qf4+ Kd4 Qd6+ Ke3 Qe5 Re8 Rd8 Rf1 Rd5 Rb8 Rb5 Qe7 Rb1 Qb4 Bb5+ Rc3 Be8 Kd3 Bg6 Ke3 Qf5 Kd4 Rd1 Rc6 Qb5 Rf4 Rg1 Rf1 Qe5+
rbKRr1B1/4N1Pr/P5rk/R1q5/n1b1R1n1/1q4Bp/1PN4N/bQR4q w - - 0 1 illegal: No proof kernel
6q1/1Bkq1Pq1/8/2r1rP2/bprP1b1B/3R3R/NNrN3n/KBnN1Q1b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 c5 d4 e5 Kd2 h5 Kc2 b5 Kb2 c4 g4 e4 d6 b3 f6 e3 f7 e2 g5 e1R g6 b4 f5 h3 g7 h4 a5 h2 a6 h3 a7 Nf6 g8B Nc6 Nc3 Re5 Bh7 Bh6 Bg6 Ng4 Bh5 Qg8 Nge2 Bf4 Na2 Na5 Nec3 Rh6 Kb1 b2 Bd3 Nb3 Qf1 Bb7 Bc2 Bc6 Nd1 Rc8 a8N c3 Nb6+ Kd8 d7 Ba4 Bd3 Rcc5 Nc4 Kc7 d8N Rhc6 Nd2 Rc4 Be4 R6c5 Nb7 Qg7 Nd6 Qg8 Rg1 h1Q Rg3 h2 Rd3 Qg7 Bb7 Qc6 Rh3 h1B Rd3 Nh2 Bf3 Qd7 Bfe4 Rc6 Rh3 R4c5 N6c4 Qg8 Nf3 Qg7 Be3 Qg8 Bf2 Nc1 Bh4 Qg7 Ncd2 Rc4 Ne1 R6c5 Nd3 Ne2 Nac1 c2+ Ka2 b1R N3b2 Qg8 Nbd3 Rb3 N3b2 Rbc3 Rb1 Qg7 Ka1 Qg8 Na2 c1Q Bd3 Qc2 Rc1 Qb3 Bb1 Rc2 Bf2 Qf3 Bh4 Qfg2 Rd3 Q2g7 Rh3 R2c3 Rc2 Nc1 Rd3 Ra3 Rcc3 Rb3 Rh3 Ra3 Rcg3 Rac3 Rd3 Rc2
1q1N1nq1/2b2PQ1/n2RN2p/4r2R/BBr1kr1N/1P6/5RP1/qbRKn2q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kd7 d4 Kd6 f5 a5 f6 c5 b6 e5 b7 c4 b3 c3 f7 h6 Ne2 h3 Qd3 a4 Nf4 a3 Qc4 c2 Qd3 h2 Qd2 a2 Nd3 e3 Nc5 e4 Be2 Na6 b8R Nf6 Ba3 Bf5 Rc8 Nd7 Bb5 e2 Ba4 c1R+ Qd1 Qc7 Bb4 Rc4 Nd2 Qb8 Rc1 a1Q Nf3 Bg7 Kd2 e1N Nh4 Be5 Qg4 e3+ Kd1 Bb1 Qg7 Nf8 Rc2 Ra7 Rf2 Re7 Rc7 Rg8 Rc8 Bg3 Rc7 Re5 Rc6+ Ke7 Ne6+ Kd7 Rc5+ Kd6 Rg1 h1Q Rb5+ Kd7 d6 Kc6 d7 Bh2 d8R Bf4 Qf6 Rg4 Qg7 Bh2 Rd7 Rf4 Rdd5 Ree4 Rh5 Re5 Rb6+ Kd5 Rd6+ Ke4 d5 Bg3 Rd8 Bh2 d6 Bg3 d7 e2+ Kd2 Nc2 Rd1 e1Q+ Kc1 Bh2 Rc8 Qe2 d8N Qg4 Rc6 Bg3 Rd6 Ne1+ Kd2 Qg6 Rc1 Qh7 Kd1 Qg8 Rfd2 Bf2 Ra2 Bb6 Rf2 Bc7
2N5/1k3p1N/2b3n1/4PPPq/nBQ1B2n/1NB1rb2/rB3Rq1/1KRrn1q1 w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 cxb5 Bc5 a5 Bb6 axb6 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 a5 Kc2 d5 g4 Kd7 e4 c5 f4 h5 e5 c4 b7 Kc7 g5 d3+ Kb2 c3+ Ka2 d4 f5 d2 Qg4 d1N Rh3 c2 Qg2 d3 Qd5 a4 Rh2 a3 Qc5+ Nc6 b8B+ Kb7 b6 d2 b5 h3 Rf2 h4 Be2 h2 Bf1 h1Q Nh3 Bd7 Bd3 Nd4 Be4+ Bc6 Ba7 Ne7 Bb2 c1Q Qc4 Qd5 Nf4 h3 Ng6 h2 Nf8 Ng6 Nh7 Nf3 Bc3 Nfh4 Bb2 Kc8 b7+ Kc7 b8N Kb7 Bc3 Nb2 b6 d1R Nd7 Na4 Nd2 Qg2 Nb3 h1B Rb1 Qd4 Ka1 a2 Bb2 Qce3 Rc1 Qef3 Bc3 Qh5 Bb2 Kc8 b7+ Kc7 b8B+ Kb7 Nb6 Rd8 Re2 Qdg1 Rf2 R8d3 Nc8 Re3 Bd6 Qgf3 Qe2 Nc3 Nf6 Qh3 Nh7 Bf3 Qc4 Qhg2 Bd4 Ra4 Bba3 Ra8 Kb2 a1N B6c5 Nc2 Bcb4 Ne1 Ka1 Nd5 Bdc3 Nb6 Kb1 Ra5 Bab2 Ra2 B4a3 Na4 Bd6 Nd3 Bdb4 Ne1
n1n5/R1r2p2/b3B1PP/r4NP1/KNR1N1k1/N3Bqb1/2rr1q1Q/3b1Rq1 w - - 0 1 illegal: No proof kernel
2r5/2nRP1qb/2BK2B1/1PP1Q3/R1bq1Nrk/2BnN1pN/1Bn2b1q/b7 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 g5 b4 d5 e4 a5 c4 f5 h4 d3 b6 a4 b7 a3 h5 a2 e6 Kf6 e7 d4 e8B d2 b5 f4+ Kh2 f3 Kg3 d3 h6 f2 h7 Nh6 Be2 f1B Rh4 Bc5 Rh5 Qe7 Rh4 Qg7 Rh1 Ra4 Bc6 Bf5 Nh3 Na6 b8B Nf7 Qe1 d1N Bb2+ Ne5 Nd2 Rc8 h8N Ne3 Ng6 Nc7 Ngf4 Nc2 Bf3 Bd4 c5 Bh7 Nc4 d2 Ne3 d1Q Qc3 Nd3 e5+ Kf7 e6+ Kf6 e7 Rc4 Rc1 a1B Bfe4 Rb4 Bg6 Be2 Kg2 g3 Re1 Qd2 Rcd1 Bf1+ Kf3 g4+ Ke4 g2 Re2 g1Q Rg2 g3 Rf2 Na6 Kd5 Qh2 Kd6 Rc4 Bc7 Ra4 Ba5 Nc7 Rf3 Qdf2 Qe1 Qfg1 Bac3 Rb4 Nf2 Kg5 N2h3+ Kh4 Rf2 Nc1 Rg2 Bc4 Rd3 Bf6 Rd4 Nd3 Rd2 Qgf2 Qh1 Ra4 Qd5 Qfg1 Re4 Bd4 Qe5 Rb4 Ned5 Bf2 Ne3 Ra4 Ned5 Bb3 Ne6+ Nf4 Kd7 Qd1 Ne3 Qg4 Rd5 Rd4 Rd6 Nd3 Rf4 Rd5 Ra4 Rd4 Rd5 Bc4 Rd6 Rf4 Rd5 Rf5 Rd6 Qe4 Nef4 Rg5 Rd5 Rg4 Rd6 Nd5 Ke6 Qd4 Rd7 Qf7+ Kd6 Qg7 Ba8 Nc7+ Bd5 Qe4 Bc6 Qd4+
2b3R1/1n1Np3/N4P1b/r1Bk3r/2R1r1PP/B2B3K/rqq1q1Q1/b2n2RB w - - 0 1 illegal: No proof kernel
3nr3/rb1PB1b1/n3b2K/Rp4Q1/1r2NRN1/P2P1B2/1r1q2R1/RqB1kq2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 h5 g4 e5+ f6 c5 f5 b5 a3 c4 d6 h3 d7 h4 Be2 e4 Bd3 e3 Be2 h2 Qb3 c3 Qa4 h3 Kg6 c2 g5 Na6 f7 Bg7 f8R Nh6 Bd1 Kd3 Qa5 e2 Nc3 e1Q Bf3 b3 Ne4 b2 Qb6 b1Q Qc5 Nf7 f6 Ra7 Rg8 Qf8 Qf5 Nd8 f7 Qfb4 f8B Bb7 Be7 Qf1 Rf8 Rg8 Qg4 Bd5 Rf4 Re8 Kh7 Bf7 g6 Be6 Qg5 Qd6 Nf6 Qdb4 Ne2 Qd4 Rg1 h1B Nc3 h2 Rg2 Qdb4 Bb2 c1R Ng4 Rc2 Bc1 Rb2 Ne4 Kc2 d3+ Qd2 Re2 Kd1 Rf2+ Ke1 Rg2 Bh6 g7 Rb4 g8R Bg7 Rg3 Bg2 Kg6 h1R Rgf8 Bh3 Rg2 Rh2 R8f6 Bd5 Rd6 Bb7 Rd4 Rb3 Ra4 Rb2 Ra5 Rb4 Rg3 Re2 Rg2 Rf2 Nh6 Be6 Ng4 Qe3 Kh5 Rfb2 Kg6 Qd2 Kh5 Bf6 Kh6 Bg7+
1N6/2qP1nB1/q1rnP3/2RrR1bR/bRPp2r1/2b1QK1N/2B5/qb4Bk w - - 0 1 illegal: No proof kernel
1n4n1/Q2P1r1B/b2Pk3/Nr3R1B/p1R1Nbbq/N1bq2P1/4r3/n1K1B1N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Na6 Kd2 Ke7 e4 f5 b4 c5 b6 h5 b7 f3 b8N f2 e5 c4 b5 h3 g3 h2 b6 f4 e6 f3 b7 c3+ Kc2 h4 Qe2 h3 Qc4 Rh7 Bd2 Bg7 Nd7 Rb8 Bd3 f1B Ra4 f2 Nf6 Kd6 e7 Bg4 e8B Bh8 Kc1 c2 Beg6 Rf7 Be1 Qd7 Kd2 c1B+ Kc2 Bfe2 Qa2 f1N Nf3 Nd2 Rf1 h1R Ng1 h2 Bh5 Nb3 Bh7 Bc4 Rf5 Bf4 Kb2 Na1 Ne4+ Ke7 Rb4 Qb5 Qa4 Bg7 Na3 Bd3 d6+ Ke6 d7 Bge5 Nf3 Qd5 Bf2 Re1 Ng1 h1Q Qa5 Re3 Be1 Qh4 Kc1 Bb5 Rc4 Re2+ Nd2 Qe4 Qc7 Qd3 d5+ Ke7 d6+ Ke6 Qa5 Bc3 Qb6 Nb4 Qc5 a5 Qd4 a4 Qa7 Re3 Ne4 Ba6 Nh3 Nc6 Ng1 Rc8 b8N Rc7 Qb6 Rb7 Qc5 Rb5 Qa7 Nb4 Nc6 Re2+ Nd2 Qh3 Na5 Nc6 Nb7 Nb8 Na5 Re3 Ne4 Qh4 Qb6 Re2+ Qe3 Rd2 Qa7 Re2+
N4r2/nNbP2kN/1P4q1/1B1RP1b1/n2p4/1R1r1n1q/1nq1NBQR/5b1K w - - 0 1 illegal: No proof kernel
NB2n2q/2npN2r/2nq1kb1/1qb5/QP6/BRRqNK1P/1b2rP2/1N3B2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 b4 e5 c4 g5 b6 a5 b7 e4 c5 d3+ Ke3 a4 h3 d2 c6 a3 c7 a2 f6 g3 Ne2 g2 Qa4 d1Q Rh2 g1Q Rh1 g4 Na3 g3 Nc3 g2 Be2 Qgf1 Rh2 g1N Qa7 Na6 b8N Rh7 Qd4 Bb7 c8N Nf3 Nb6 Nc7 Nab1 Bc5 Rh1 Ne5 Ncd5 Nc6 Ba3 Qd3+ Kf4 e3 Kf3 Kg6 f7 Nf6 f8B Nfe8 Bd6 Qf6+ Bf4 Qh8 Qe5 Ra6 Na8 Qb5 Bc4 e2 Ne3 e1Q Qe4+ Kg7 Qc2 Qd2 Qa4 Qfd3 Rc1 Kf6 Rc3 Qd6 Bf1 Q2d3 Nd2 Ra7 Rb1 a1B Rbb3 Bb2 Nb1 Nd4+ Kg4 Be4 Nc6 Bg6 Ne7 Nc6 Kf3 Rb7 Qa6 Rb8 Qa5 Ng7 Qa4 Re8 Nc8 Re4 Ne7 Nge8 Rc1 Qe5 Rcc3 Nd5 Bg3 Qe6 Bc7 Qd6 Bb8 Qc2 N3f5 Re2 Ne3 Ndc7 Nb6 Qcd2 Na8 Q2d3
2n5/b2p1k2/2N2b2/NB1P3r/n2q1r1P/1BQB1RNP/4bK1B/Rr1rq2q w - - 0 1 illegal: No possible last move
4B3/2qp1Pr1/r1Rb2n1/2Nr4/2KP1Pnb/Q1RrqR2/1q1N4/BR1nN1k1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 Ke2 Kf7 Kd3 Kf6 g4 Ke5 a4 Kf4 g5 e5 g6 c5 f6 h5 b6 e4+ Kc4 b2 d4+ e3 g7 h3 a5 h4 f3 Kg3 a6 Kf2 a7 b3 f4 e2 b7 e1B Bd3 h2 Ne2 h3 Rg1 h1N Ra2 h2 Qd2 Ne7 g8N Rh3 Kb5 c4 Bc2 c3 Rg3 Qc7 Bg6 c2 Qc3 Nbc6 b8R Ne5 Ng1 Rh5 Bd2 c1Q Be8 Rh7 f7 Rg7 Rg6 Ng4 Rc6 Ng6 Kc4 Bd6 Ra3 Kg2 Rb4 Nhf2 Nf3 h1R Nf6 Rh5 Ne4 Rd5 Nc5 Nd1 Rb7 Bh4 Ne1+ Kg1 Rbb6 Rc8 a8R Rb8 R8a5 Ra8 Rbb5 Ra6 Rb7 Qc2 Bc1 Qf2 Nd2 b1R Bb2 Qg3 Ba1 b2 Rbb3 Rc1 Rab5 b1Q Rbb6 Rc2 R6b5 Rb2 Qb4 Qf2 Rf3 Rb3 Qa4 Rd3 Rc3 Qe2 Qa3 Qe3 Rb7 Qc1 Rb1 Qb2
4n2N/q1P2bb1/Pr1r2N1/1Qn3kr/5qb1/q1Pp2BB/RBqN1KR1/2B5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 f4 Kf7 g4 Kf6 a4 h5 c6 d5 c7 b5 a5 e5 a6 d4 c3 b3 Na3 h3 Qc2 e4 Rh2 b4 Nb1 e3 Bd2 b2 Bb5 h4 Nf3 b3 Rh1 d3 Rg1 h2 Ra2 h1B Rg2 e2 Bd7 h3 Kf2 h2 Bc1 Bg7 Ng5 Qe7 Nf7 Qa3 Nd2 b1R Qb2 Rh5 Be6 Nd7 Nh8 Nc5 g5+ Ke7 g6 Nf6 Bd7 Ne8 Be6 Rb8 Bd7 Rb6 f6+ Kd6 f5 Ke5 f7 Kf6 f8B e1Q+ Kf3 Qh4 Bd6 Qg4+ Kf2 Kg5 Bg3 Rd6 f6 Qgb4 Bh3 Bg4 f7 Qb8 f8B Qa7 Rg1 Bd5 Rg2 h1Q Be7+ Nf6 Bf8 Bf7 Be7 Qh2 Bf8 Bh6 g7 Ne8 g8N Bg7 Ne7 Rb6 Qc2 b2 Qa4 Rd6 Qc6 Ra1 Qa4 b1Q Neg6 Qc2 Qb5 Rb1 Qc4 Rbb6 Qb5 Rd5 Bb2 Na4 Bc5 Rdd6 Bb4+ Nc5 Bc1 Qa5 Bba3 Qaa4 Bab2 Qb4 Qa5 Qa3 Qb5 Kh6 Bh4 Qe5 Bg3 Kg5 Nf8 Qe4 Nfg6 Qf4+
4BR1n/1PknK3/5B1N/1P2p3/5qP1/1rrn3Q/1R1rb2b/1BrNBbNq w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 a5 Kg5 h5 c4 e5+ f6 d3 b4 d2 f4 a4 g4 h3 b6 d4 f5 h4 c5 a3 b7 d3 c6+ Kc7 Qf3 d1R Bd2 h2 Nc3 a2 Rb1 a1R Qh3 Qd4 f7 Nh6 Kf6 R8a3 Be1 d2 Bd3 Bc5 f8N Rb3 Nd7 Nf7 Rb2 Rac1 Bb1 Qf4 Ke6 Bf2 Ke7 Bg3 Nf6 Nd7 Ng8 Rh5 f6 Nh8 f7 Rf5 Qg2 h3 f8B Rf6 Bg7 Rd6 Na4 Rcc3 Nh6 Rdc1 Bf6 d1B b5 Rd2 Qf3 Be2 Qe3 Nf8 Qf3 Bf5 Qe3 Bfd3 Qf3 Rc4 Nc3 Nd7 Nd1 R4c3 Qf1 Kb6 c7 Bc4 c8B Kc7 Nf3 Bcd3 Rg1 h1Q Rg2 h2 Rf2 Bc4 Qh3 Bf1 Ng1 Bce2 Bg6 Qhf3 Bc2 h1N Bb1 Q3e4 Rf3 Bh2 Rf2 Qg3 Rf4 Nf2 Rf5 Nd3 Rf4 Nb6 Bd7 Qh1 Be8 Qf2 Bh4 Qd4 Rf8 Qf4 Bf6 Nd7
B1bqk3/NP4Pq/rQnb3R/1B2B3/1NqR4/1N2b1r1/1PnB3p/1K2rq2 w - - 0 1 illegal: No possible last move, all moves rejected
1b3R1n/1p2n1q1/1rPQ2PK/RP1B2N1/b1q2Nk1/2q4b/B1RR1Br1/3rq3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 c5 hxg5 Nc6 d4 cxd4 b5 Nb8 Qd2 Bg7 Qc3 Bf8 Qb4 axb4 Kd2 Kf7 a4 e5 c4 d5 g4 h5 f4 d3 Ke3 e4 g6+ Kf6 c5 d2 c6 d1B g7 h4 a5 h3 a6 b3 a7 h2 Bd3 b2 Nh3 Qc7 Ng5 Ne7 g8B Ba4 Bc4 Nd7 Nc3 b1Q Ra2 Qc2 Rd1 h1Q Ne2 Qe1 Rd2 Ne5 Bb2 Rh6 Bd4 Rh2 Bb3 Qcc1 Rc2 Rg2 Ba2 Bg7 Bc5 N5g6 Bb6 Nh8 Bc5 Rb8 a8R Bd7 Ra6 Ra8 Ra5 Ra6 Bf7 Bh6 Be6 Rb6 Bg8 Kg7 f6+ Kg6 f7 Qe5 f8R Qg7 Bf7+ Kf6 f5 d4+ Kf4 d3 Bf2 e3 Nd4 e2 Bfd5+ Qf7 Ne6 Qf1 Kf3 e1Q Nf4 Ke5 f6 Qg7 f7 Bc8 Rb2 Qc3 Rbc2 Be6 Nh7 Bc8 g5 Bh3 g6 Kf5 Ng5 Qe6 Rb8 Qfe1 f8Q+ Qef7 Qd8 Qfe6 Qd6 Qeg8 Re2 Q8f7 Rf8 d2+ Nd3 d1R Red2 Rh2 Kg3 Rg2+ Kh4 Qa1 Kh5 Qac3 Nf3 Bf4 Ng5 Bh2 Qb4 Bb8 Nf4 Qgf6 Kh6 Kg4 Qa3 Qc4 Qb4 Qfc3 Qd6 Qfg7#
7N/PB5R/1Kb1k1nB/2R1rR2/q1NRnP1p/1Qbrq3/r1b3P1/3n1N1n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 d4 b5 a4 c5 f4 h5 f6 h3 d6 b3 f7 c4 d5 c3 a5 b4 a6 c2 Ba3 c1Q+ Kd3 h2 Nc3 h4 Kc4 b2 Kc5 b1N Bb2 b3 Ne2 e4 Ng3 Qe8 Kb6 e3 Nb5 e2 Bg7 e1R Bh6 b2 Na3 Re5 Qb3 Nc3 Nc4 Bg7 f8R b1B Rf5 Nd1 Ra5 Rh7 Rc5 Qe3 Be2 Ra7 Nf1 Nc6 Bf3 Nce7 Rg1 h1N Be4 Rc7 a7 Bb7 Bf3 Ng6 Be4 Kd8 d7 Ke7 d8N Bc6 Nf7 Nf6 d6+ Ke6 d7 Bc2 d8R Rh8 Bf3 Ne4 Rd7 Rc8 Rb7 Qd7 Rc7 Rhd8 Nh8 Qe8 Rd7 Bf6 Rh7 Rd3 Ng3 Qd7 Re1 Qdd4 Nf1 Qa1 Re2 Qa4 Rd2 Rcd8 Qb4 Ra3 Qb3 Ra2 Rd3 Red5 Rd2 Bc3 Rd3 Re5 Rd4 Nf6 Re4 Rd3 Rd4 Ba8 Bb7 Ne4 Ba6 Bd5 Bb7 Bc6
nQ1b1r2/P1rB4/2rn2B1/R5pn/NNB5/3rR1RP/3kbqPB/4qq1K w - - 0 1 illegal: No possible last move
3Rb1bB/P1qq2R1/pr5n/2K5/1BB3n1/1Rq1PNr1/5bQP/kn1qB1N1 w - - 0 1 illegal: No proof kernel
n1R2qB1/Pr1Pbb1q/3NNB1n/Q3r1Pq/1Rn5/1N6/p1BKn1k1/Nb6 w - - 0 1 illegal: No proof kernel
3N2rB/PP2q2Q/3b3N/qk1qrR1N/b3Nnp1/2P2BK1/5n1r/rn2R2B w - - 0 1 illegal: No proof kernel
Kbk1NBBr/p6R/R4q2/2rB4/2br3P/nP3qn1/PB1n2NQ/3r2Rb w - - 0 1 legal: proof: f4 e5 g4 b5 d3 h5 c4 bxc4 gxh5 cxd3 fxe5 Bb7 Bh6 Ba6 Bc1 Bc8 Kf2 g5 Ke3 c5 Ke4 f5+ Kd5 f4 e4 g4 h4 d2 e6 c4 b3 c3 e5 f3 h6 c2 h7 g3 e7 g2 Nc3 f2 Ba6 f1B Ne4 Nh6 Ba3 c1R Qe2 Nf5 Nh3 g1N Bc4 Na6 Nf4 Nf3 Rg1 Ng3 Ng2 d1Q+ Qd2 d6 Kc6 d5 Qb2 Bf5 Kb7 Kd7 e8R d4 Bg8 d3 Nd6 d2 Re6 Qf6 Ne8 Nb4 Ra6 Rc5 Rc1 Bd6 e6+ Kd8 Qc2 Bc4 e7+ Kd7 Bd5 Rd8 Bb2 Bb8 Ka8 Kc8 Ba3 Rg8 h8B Be4 Bb2 Rd6 Bg7 Rh8 Bf8 Qe2 Rcf1 d1R Rf2 Nd2 Rf4 Qg5 Rf7 Qf3 Rg7 Qgf6 Rh7 Nb1 Qd2 Nc2 Qf4 Nd2 Qe5 Nf5 Qh2 Rd8 Ng7 Na3 e8B Rd6 Bf7 Ng3 Bg8 Rd7 Ne8 Rd8 Bc6 Rd4 Bcd5 Qf2 Nf4 Bh1 Ng2 Q2f3
R1N2nkn/2n3q1/4n3/3R4/1BB2p1r/K3Br1R/PrP2PnR/Q3Nnbb w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 d5 exd5 c5 d4 cxd4 Kd2 b5 h4 e5 h6 g5 h5 f5 h7 Kf7 d6 b3 d7 b4 h6 g4 Ne2 b2 Rh2 g3 Rg2 e4 Nec3 e3+ Kd3 b3 Kc4 d3 Qd2 e2 Na3 b1N Ne4 e1N Qa5 b2 Kb3 d2 Be2 d1N Qa4 Ndc3 Rg1 g2 Qa6 Bd6 Nd2 Bh2 Qb7 f4 Qe4 Qe7 d8B Nd5 Bf3 Nc7 Rh1 g1N Qd4 Ne2 Nac4 Nd7 Nb6 Bb7 Nc8 Bg1 Rh2 Ng2 Bd5+ Kf8 Bc4 Qg7 Bh4 Ne7 Nf3 Ng6 Be3 Ra3+ Kb4 Bd5 Ne1 Nd2 Rd1 Nf1 Be7+ Kf7 Qe5 b1R+ Qb2 Ndf8 Rd2 Rc1 Qa1 Nd4 Rh3 Rc3 Ka4 Rd3 Bb4 Rb1 Rd1 Rdb3 Rd3 R3b2 Ka3 Nde6 Rd2 Be4 Rd5 Rd1 Rb5 Rd5 Rc5 Rh5 Rd5 Rg8 h8R Rh4 Rh7 Rh8 Ra5 Kg8 Ra8 Qe5 Rd7 Qg7 Rd1 Rh7 Rd5 Nh8 Rh2 Qf7 Rh3 Rg7 Rh2 Rg3 Rh3 Qg7 h7+ Kf7 Rh2 Rf3 Rd6 Rg3 Rd1 Rhh3 Ra5 Nh4 Ra4 Bh1 Bd2 Ng2 Bb4 Rf3 Rd5 Nhg6 h8R Rh5 Rh6 Kg8 Ra8 Nh8 Rh7 Re5 R7h4 Rh5 R4h3 Rh4
bN1rR3/2bRn2N/5p1P/2PnB1b1/4Q1R1/rk1P1Nbb/1r6/RB1bK2q w - - 0 1 illegal: No possible last move
3RNN2/7b/PnQBPr2/1b1B1bK1/2NB3R/2qnp2b/4Nr1P/3kbbr1 w - - 0 1 illegal: No proof kernel
3qbnK1/R1N2B2/pP1r1n1N/1PR5/5Q1b/2rnB2k/P5Nn/2BbBn1n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 c4 f5 exf5 g5 cxb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 h5 Kd5 e5 b4 h3 f4 h4 g4 d3 b6 h2 b5 d2 Bg2 e4 Qa4 d1B Nf3 e3 Ne1 a6 Bf1 e2 Ng2 e1N Bc4 h3 Nc3 Rh6 Be3 d6 Rc1 Nd3 Qb4 Bd7 g5+ Kg7 f6+ Kg6 f5+ Kh5 g6 Kg4 g7 Be7 f7 Bh4 f8B Be8 f6 Nd7 Ke6 d5 Rf1 d4 Nd5 h1N Nc7 h2 Bd5 Nhf2 Rc5 h1N Qa4 Rh5 f7 Ngf6 g8N Kh3 Bfh6 N2g4 f8B Nh2 Bhf4 Rh7 Nh6 Rc8 Bg3 Rg7 Be1 Rg3 Bd6 Rg6 Bdf4 Nf8+ Kf5 Ng8 Bf7 Rd6 Bc1 Nf6 Bfe3 Nf4 Qb4 d3 Rf2 d2 Qe4 N4g6 Qf4 Ne5 Re2 Nd3 Rf2 N8h7 Kg6 Nf8+ Kg7 Bc2 Re2 d1N Bg1 Ba4 Re7 Ne3 Kh8 Nef1 Bge3 N6h7 Kg8 Bd1 Na8 Rcc6 Ra7 Rc8 Rf5 Rc5 Nc7 Rc3 Rc5 Nf6+
2n1q2N/3kP3/N1Rr1bNr/r2P3K/1n1b1r2/p2QBB2/P3r1Nn/r2R3R w - - 0 1 illegal: No possible last move, all moves rejected
3nN2n/1PBr2R1/1K3R2/1bBrb3/k3q1Q1/2Prp1N1/1B1NPBbb/b6b w - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 cxd4 Bh3 f5 gxf5 Kf7 Bg4 hxg4 Qd2 Ke8 Qd3 Rh6 Qd1 Rh8 Kd2 e5 Kd3 d5 f4 Kd7 b4 g5 h4 a5 h5 g3 b6 Kc6 f6 Kb5 c3 e4+ Kd2 a4 f5 g2 h6 a3 h7 g4 b7 d3 Ke3 a2 Kd4 d2 f7 g3 f6 e3 Nh3 g1R Rh2 g2 Nf2 Ra5 Rh6 Bd6 f8B Qe7 f7 Bh3 Qb3 d1B Rg6 Nh6 Bb2 Bc2 Rg7 Rd1+ Nd2 g1B Qc4+ Ka4 Nh1 Bgh2 Ng3 Bg2 Rb1 Rg8 h8N a1B Rc1 Qe6 Be7 Bce4 f8B Nf7 Bh4 Rc5 Bfe7 Rd8 Bf8 Rd7 b5+ Ka5 b6 Qf5 Ng6 Nh8 Ne7 Bh1 Nc8 Beg2 Rb1 Rb5 Rc1 Bc7 Bb4+ Ka4 Nd6 Qe6 Ne8 Be5+ Kd3 Ra5 Qg4 d4 Bc5 Nc6 b8B Nd8 b7 Qe7 Kc4 d3 Bc7 Rb5 B5d6 Rd5 Bc5 Qe6 Nb1 Rd2 Rf1 Rd1 Rf6 d2 Ba7 Rd3+ Kc5+ Qc4+ Kb6 Qe4 Rf4 Rg1 Rf2 d1B Nd2 Bb3 Rf6 Rd1 Ka6 R3d5 Bc5 Bc4+ Kb6 Bb5 Nh5 Rd4 Bf2 Rd3 Ng3 R3d5 Nb1 R1d4 Nd2 Rd3
3bB1rQ/bNn5/6p1/bKPqNN1P/1n2nR2/2krR2B/1Nn1nP2/2B4b w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 h4 a5+ Ka4 d5 b4 d4 c4 g6 h5 d3 c6 Kd4 c7 e5 b6 e3 b5 e2 b7 e1B b6 d2 Rh2 e4 Qf3 d1N Qg2 e3 Nd2 g3 Ndf3+ Kc3 Nd2 e2 Kb5 a4 Ra2 a3 Rh4 Na6 b8N Nb2 b7 Bc5 Rf4 Nf6 Nc6 Qd5 b8N Rg8 Qh3 Ba7+ c5 Ne4 Na5 Nd3 Ngf3 g2 Ne5 g1N Nbc6 Bb7 Nd4 Rad8 Qc8 Ndb4 Bh3 Ba8 Ra1 a2 Nb7 Rd6 Rb1 a1N Nf5 Nac2 Ndc4 Bd2 Nb2 e1B Qf8 Ne2 c8B Rd8 Bd7 Nc7+ Ka4 Be3 Be8 Rd6 Qf6 B1d2 Qh8 Rd7 Rg4 Bg5 Rf4 Bd8 Ra1 Qb3+ Ka5 Rd3 Ra3 Ng5 Nbd6 Bh1 Nb7 Ne4 Rf3 Nca6+ Kb5 Be1 Ra4 Qd5 Re3 Nc7+ Ka5 Nba6 Bf1 Nd6 Rg4 Ne4 Rf4 Bd2 Ne7 Kd4+ Ka4 Bc3 Bh3 Ba5 Nf5+ Kc3 Qh7 Na8 Qh8 Nab4 Kb5 Nc7+
1nRN2n1/1br4P/3Bn3/1qBP4/kbqn3n/6KP/N1r1p1n1/1BR2QRR w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 h5 gxh5 dxc4 f4 Kd7 Kf2 c5 b4 a5 d4 e5 h6 g5 f5 a4 h3 g4 h7 e3+ Kg2 e2 f6 e1N+ Kg3 a3 f7 a2 b6 Kc6 d5+ Kb5 b7 e4 Bf4 e3 Qb3 e2 Kh2 c3 Kg3 c2 Rh2 c1N Nd2 c4 Ngf3 c3 Ne5 c2 Rh1 Qa5 Ne4 Ra7 Qf3 Ng2 Nc6 Nd3 Nd8 c1Q Bd6 Qc4 Rc1 Ka4 b5 a1N b6 Nb3 Bc5 Be7 f8B Nd4 Qf2 Qab5 Nc3+ Kb3 Qf6 Ndf4 Na2 Nfe6 Qf5 Ka4 Qf3 Nd7 b8R Bb7 Rc8 Nb8 Bd6 Bg5 Bc5 Bd2 Bfd6 Bb4 Qf7 Ne7 Rg1 Rf8 Rh1 Ng8 Qf2 Rf7 Qe1 Rc7 Qf2 Ne1 Bg2 Ra6 Be4 Ng2 Qf1 Ra5 Kf2 g3+ Kg1 Ne3 Bb1 g2 Kf2 g1N Kg3 Ngf3 Rg1 Nh4 Rh1 Ba8 b7 Neg2 Rg1 Ra6 Rh1 Rac6 Rg1 Na6 b8R Bb7 Rh1 Ba3 Bf5 Qa5 Qe1 Rb6 Qg1 Rb2 Rc2 Ba8 Rc3 Rd2 Rb1 Qab5 Re1 Rb2 Rcc1 Bb7 Bb1 Nb8 Qf2 Rd2 Reg1 Rc2 Qf1 Bb4
5NNb/nrq1n1PR/3R2RP/Pp1b4/1k3b1Q/N2b1BKb/1rq4B/6Rb w - - 0 1 illegal: No possible last move, all moves rejected
1K1qr1B1/3k1p2/2N1q3/B1rPR1Pq/1b2RRb1/4NN2/nP1q3q/1N1nQq2 w - - 0 1 illegal: No possible last move, all moves rejected
q2q3N/q1Pn1b1N/6RR/K1QNp1RP/B1b1PRqr/q1B5/k2q3r/n7 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 e6 f6 Be7 Bg2 Qb6 Bh3 Kd8 fxe7+ Kc7 Bg2 Kd6 Bf1 Qd8 Kd2 Kc5 e8N Kb4 h4 f5 e4 d5 c4 a5 b6 g5 b7 f4 b3 a4 c5 a3 c6 a2 c7 d3 Rh3 d4 Rh1 e5 Ng7 g3 Nc3 g4 Nf5 g2 Nf3 g1Q Na4 g3 Nc3 g2 Be2 Nd7 Rh2 Ngf6 Nh6 Nc5 Nf7 Nfd7 N3g5 f3 Qc2 f2 Nh7 f1Q Bb2 Qf3 Rf1 a1Q Bd1 Ra2 b8R+ Bb7 Rc8 Ba6 Qc1 Qg4 Rf4 Qf1 Ra8 g1Q Ra7 Qfh3 Nd5+ Kb5 b4 Qf2+ Be2 Ka4 b5 Kb3 b6 Qhg3 b7 Q3h3 Kd1 d2 Bc3 Rb2 b8R+ Ka2 Rb6 Nb3 Rg6 Qa8 Rh1 Rc2 Re1 Qb2 Bf3 Na1 Rg1 Qhg2 Rb7 Qa3 Rbb6 Qh2 Rh6 Qe3 Rbg6 Qhf2 Rf5 Qeg5 Be2 Qgd8 Rf3 Rb2 Bb5 Rc2 Rg3 Qg1+ Ke2 d1B+ Kd3 Rh2 Kc4 d3 Rf4 Qga7 Qe3 d2 Qc5 Bc2 Rg1 d1Q h5 Rf8 Nh8 Qd2 Rf5 Ba4 Rfg5 Rf3 Rf1 Rfh3 Rf8 Rh4 Rf4 Bb7 Bc6 Bb3+ Kb5 Bc8 Ne7 Bf7 Nd5 Qac1 Kb4 Ba6 Ba4 Qa3+ Ka5 Bc4+
1K4R1/Rp2BB2/1b3Rn1/1Q6/1Nq1PP1r/1P2br1r/3nrr1B/nk2nNB1 w - - 0 1 illegal: No proof kernel
3n2k1/1K3n2/1n1BP2Q/PBP1N2b/nR2N1N1/rR1pRb2/r2bb3/3qrN2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 b5 Kd3 g5 Ke4 d5+ Kf3 f5 e4 Kf7 c4 b3 a4 f4 h4 b2 c5 d3 h6 d4 h7 b4 h5 d2 h6 b3 Nh3 Bb7 Ra3 Nc6 Bb5 Qd6 Qe2 d1B Nd2 b1N Nf1 b2 Rb3 Nc3 Nf2 b1N Ng4 Nd5 Rh3 Nb6 Bd2 Be7 e6+ Kf8 e5 Nc3 Bc1 Bf6 e7+ Kf7 Kf2 f3 e8N Qd8 Kg3 f2 Kf3 Kf8 e6 Bg7 Nfh2 f1B Bf4 Be5 Bg3 Bf4 Nef6 Bd2 Ne4 Qd5 Be5 d3 Rb4 Qb3 Bd6+ Nce7 Ne3 g4+ Kf4 g3 Ke5 g2 Nhg4 g1R Qh2 Bfe2 Nf1 Bc6 Re3 Be8 Qh3 Bh5 Qh4 Bf3 Qh3 Bde2 a5 Qd1 Qh1 Rb8 Rb3 Nca4 Kd4 Nf6 Rb4 Rg8 h8N Nh7 Nf7 Ng5 Nfe5 Nf7 h7 Rg5 h8R+ Kg7 Ngh2 R5g2 Nhg4 Rb7 Rb8 Kh7 Nfh2 Re1 Nf1 Rh2 Be8 Kg8 Bb5+ Nbc8 Rb3 Nc6+ Kd5 Rg2 Bc4 Rb4 Bb5 Rc4 Qh2 Rc2 Qf4 Ra2 Qh6 Rg1 Ba6 Ra3 R8b4 Rg2 Bb5 Ng5 Be7 Ncb6+ Kd6 Rf2 Kc7 Nf7 Kb7 Bc1 Nfh2 Bf1 Ng5 Rfa2 Bd6 B1e2 Nf1 Bd2 Ne4 Ncd8+
QrN1Rb2/b2Bb3/q3p1Kr/NB2P1P1/BP1r1k2/1n5n/rn1b4/2R3BN w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 g3 bxa4 g4 fxg4 h3 g5 Bd2 g3 Bb4 g4 Qc1 g2 Qd1 g3 Bd2 Bb7 Be3 Bf3 Bc1 Bg4 hxg4 Bg7 Na3 Bh6 Nb1 Bf8 Kd2 Kf7 Ke3 Ke6 Kf4 h5 Kg5 Ke5 e4 d5 b4 a5 c4 h4 f3 a3 c6 e6+ Kg6 a4 c5 h3 c7 d4 c8B h2 c6 a2 c7 d3 g5 d2 Bfa6 a3 Qc2 d1N Bc4 Nh6 Nh3 g1R Bd7 g2 c8B Nc6 Nd2 Na5 Nf2 Kf4 Ba4 Qd3 Bcd7 Ng4 Bcb5 Nb3 Qc8 Nb2 Qc6 Ra6 Qa8 Rd1 Nc4+ Rd2 Rg1 h1R Na5 R1h7 Re1 g1B Nh1 Nf2 Rf1 Qc4 e5 Nh3 Rb1 a1B Rf2 a2 Rf1 Ke3 f4 Bf2 f5 Kf4 Rd1 B2c5 f6 Bce7 f7 Rd6 Qb8 Rd4 Qa8 Bh6 f8N Qf1 Bbc6 Qa6 Bcb5 Bg7 Bc8 Bh6 Nd7 Bhf8 Nb6 Rh5 Bcd7 R5h6+ Kf7 Nc4 Nc8 Bc3 Bb2 a1B Rbc1 Rc2 Rd3 Bd2 Bc3 Ra2 Bb2 Rd5 Bd4 Nb2 Bg1 Rd4 Rdc3 Nd3 Rc6 Bac3 Rb6 Nb2 Rb8 Rg8 Nd6 Be3 Re8 Bcd2 Nc8 Rd5 Ng3 Ba7 Nh1 Rd4 Nd6 Rh5 Rb8 Bg7 Kg6 Rc8 Rc7 Bgf8 Rc1 Rc5 Rd8 Rc8 Re8 Rb8 Nc8 Rh6+
kr5q/n2K1R1n/1RP1r3/1bPN4/Qrbn2nP/2NBBp2/r1Bb4/3B2R1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 axb4 Kf2 f5 Kf3 b5 h4 d5 e4 Kd7 c4 Kc7 a4 Kb7 e5 g5 e6 g4+ Kf2 d4 h6 f3 Kg3 f4+ Kh2 f2 e7 d3 e8B g3+ Kg2 d2 Kf3 g2 Ke4 f3 Ke5 b3 a5 b4 h7 b2 Ra3 b3 Qc2 d1N Nc3 b1R Ra2 b2 Qa4 Bh6 Nh3 g1N Bd3 f1B Nf4 Nf6 Be3 Ne2 Nfd5 Nd4 Rg1 Bd7 Kd6 Nf2 a6+ Ka7 Ra1 Re1 Rb1 N2g4 Beg6 Re8 h8R Nh7 Rf8 Nbc6 Rf7 Qf6+ Kc7 Reb8 Be2 Qg7 Bd1 Qh8 Bgc2 Rb4 Kd6 Rab8 Kc7 Ka8 a7 Re2 Kd6 Re8 Bd3 Re6+ Kc7 Nce5 B3c2 Bb5 Bd3 Nec6 Kd7 Kb7 a8B+ Kb8 B3c2 Na7+ c6 Rg2 c5 Bfc4 Bb7 Rh2 Ba6 Ka8 Ra1 b1R Ra3 Rf2 Rb3 Rd2 Bd3 Ra2 B3c2 Be2 Rb2 Bbc4 Rb3 Rb8 Rb6 Rb4 Bf2 Bd2 Be3 Bb3 Bad3 Bc4 Bg6 Bb5 Bge4 Bec4 Bg6 Nh2 Bgd3 Ng4
8/r1rk1Pr1/1QRb4/r1b1n3/P2bRB1P/nR2K2n/1B1pN1q1/1N1R1b1B w - - 0 1 illegal: No possible last move, all moves rejected
bN1NR1RB/KRP5/Q1B1qP1b/1Rr5/1r6/2n1kb2/rp1bn1PN/1r1n4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kd3 b5 c4 d5 a4 e5 f4 h5 a5 b3 c5 b4 c6 e4+ Kd2 e3+ Kd3 e2 a6 e1B c7 h4 a7 h3 f6 Ke6 f7 Kf5 g6 h2 g7 b2 Bd2 b3 Qe2 Bb7 Ra2 Nc6 Ra5 Nf6 g8R Bh6 f8N Qd7 Na3 b1R Nf3 Qe6 Bc3 Bd2 Nc4 Ne4 Nd7 b2 Nb8 Rh7 Nce5 Rh8 Rg1 h1R Nf7 Rh4 Rb5 Rh7 Nd8 Rg7 Qd1 Rg5 Qa4 Kg4 f5 Kf4 Nh2 Rgh5 Kc2 d3+ Kb3 Ke3 Bh8 Nc3 f6 Nd4+ Kb4 Nde2+ Kc5 Rb4 Qa6 Bc6 Kb6 d4 Re8 Rc5 Rg8 Bc1 Re8 d2 Rg8 d1N Re8 Nf4 Bc4 d3 Bd5 Bb7+ Bc6 d2 Rf1 Nfe2 Rf4 Nf2 Rg4 d1B Rgg8 Bd2 Nd7 Rb8 a8R Rc8 Ra7 Ba8 Rb7 Rb8 Ka7 Ra4 Ra5 Ra2 Rb3 Rb4 Nb8 Nf4 Rb5 Bf3 Rb7 Nd1 Rb5 Ne2 Rb7 Rg4 R3b5 Rb4
1N1kb2r/n5Q1/qR2B1P1/Pb2p2R/4P2q/K1r2rRn/2R1r3/1B1bB1Nb w - - 0 1 illegal: No possible last move, all moves rejected
1NR2n2/n2b3B/3N1P1q/1bNk3p/2bP4/1qnKP1nr/2QR2R1/1Nbr2B1 w - - 0 1 illegal: No possible last move
1Bq1rn2/r4qN1/2QbP1qP/3p1N1R/rB4k1/1BPbK2N/r2R4/2q2B1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 h4 Ke6 b4 Kf5 h5 a5 e3 g5 h6 d5 b6 d3 b7 g3+ Kf3 g2 b5 a4 c3 d2 b6 g4+ Ke2 a3 e6 g3 e7 a2 e8B Bd6 e4+ Kg4 e5 f5 e6 f4 Nh3 g1R Ba3 g2 Bb5 f3+ Kd3 Ne7 Rh2 Nd7 b8N Ra7 b7 Nf5 Bc4 Ng3 Bb4 Re8 Na6 Nh1 b8B Nf8 Qa4 d1Q+ Ke3 f2 Qc6 Qc1+ Nd2 Qc7 Rb1 a1R Rb2 Ra4 Bb3 Qf7 Nc7 Ba6 Ra2 Bd3 Rc2 Qd7 Ra2 Qc8 Rc2 Qd1 Nf3 Qc1+ Rd2 Ra2 Nb5 R7a4 Nbd4 Ra7 Nf5 R7a4 Be2 f1Q Ng7 Ra7 Nh4+ Qf3+ Kd4 Rd1 Bf1 Qf7 Nhf5 g1Q+ Rdf2 Rdd2 Ke3 Qg2 Re2 Rdc2+ Rd2 R2a4 Ng5 Rca2 Rh5 Qg6 Nh3 Qh2 Nf4 Qh4 Nh3 Qhf6 Qa6 Qe7 Qc6 Qef7
b5n1/B1q1Qr1N/N1kP3R/K2NB2q/2p2bP1/4b3/1P2nnBb/R1nN2r1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kd7 g4 c5 d4 a5 Kd2 e5 Kc3 h5 b6 h3 d6 h4 b7 h2 d5 c4 f5 h3 f6 e3 f7 e4 Bg2 e2 Bh6 e1B+ Qd2 a4 Kb4 a3 Kb5 a2 Ne2 e3 Qc1 Ra7 Nec3 e2 Qe3 Bg3 Nd1 e1B Nbc3 Qc7 Kb4 Bf4 Nf2 Nc6+ Kb5 Bd2 b8B Bb7 Nb1 Ba8 Nc3 Nd4+ Kb4 Be7 Bg7 Ne2 Be5 Bf8 Qc5 Bde3 Nfd1 Rh7 Kb5 Ra3 Ba7 Be7 Rf1 h1Q Rg1 h2 f8N+ Kc8 d7+ Kb7 Rf1 Rf7 Nh7 Bd6 Rf3 Ra6 Rh3 Ra4 Rh6 Ra3 Rc1 a1N Rb1 Nb3 Ra1 Nbc1 d8N+ Kc8 Nc6 Kd7 Nb4 Rb3 Ra5 Ra3 Na6 Ra1 Bf6 Bde5 Qf8 Rb1 d6 Ra1 Kb4 Rb1 Nd5 Kc6 Qe7 Ra1 Bf1 Rb1 N5c3 Qd5 Ra1 h1N Bg2 Nf2 Bg7 Bh2 Ka4 B5f4 Be5 Qf3 Nd5 Qh3 Kb4 Qh5 Ka4 Nb3 N1c3 Rg1 Nd1 Nbc1 Kb4 Qc8 Ka5 Qc7+
3R1q2/1Nq4b/R2PQK1P/n1B2pB1/2rNb1BP/1r2r1bN/2b4n/1N2r2k w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 g5 d4 b5 a4 c5 h4 c4 a5 b3 e3 b2 a6 f3 a7 c3 h6 c2 Bg2 b4 Ne2 g4 Na3 b1B Qd3 g3 Nf4 b3 Ra2 b2 Nh3 f2 Rd1 f1Q Qd2 Qc7 Qe2 Nc6 Bf3 g2 Bg4 Rb8 a8N g1R Bd2 Na5 Bb4+ Qc5 Nc7 c1R+ Rd3 Rc4 Ne6 Bc2 Nb1 Bb7 Ra4 Qc1 Kf5 Re1 e4 Nf6 Qe3 Be7 Ba3 Rhe8 e5+ Kd7 d6 Kc6 d7 Kd5 d8B Bd6 Kg5 Bc7 Rd2 Qf8 Bc5 Ba8 Qb3 Ke4 d5 Rb7 Qa2 Rb3 Nd4 Bd6 e6 Bg3 e7 Ke3 Bc8 Ng4 Ra3 Nh2 Bg4 Bh7 Ra4 f5 Rd1 Nc6 Ra6 Na5 Rd2 Qg8+ Kf6 Bc6 Na3 b1B Rd1 Be4 Nb1 Ba4 Rd2 Rb7 Qb3+ Qc3 Qb6 Bac2 Qe6 Rb3 Bdb6 Rd8 e8N Rd7 Bd8 Re7 Nd6 Qf8+ Kg5 Re8 Nb7 Re7 Rd1 Re8 Nf3+ Ke2 Nd4+ Kf1 Bde7 Kg2 Bf6 Bg8 Kg6 Kh1 Bg5 Qd6 Rd3 Bh7+ Kf6 Qb4 Re3 Qb8 d6 Qb6 Re2 Q6c7 Re3 Rb5 Ra3 Rb3 Ra8 Re7 Ra1 Qe8 Rd8 Qf8+ Qf7 Bd5 Ba7 R7e3 Bc5 Nc6 Ra2 Bde4 Ra6 Qe8 Qd7 Na5 Qe6 Qf8+
7n/nB3brn/1Pn1Bp2/BN3QNP/r5qR/b2R2rP/1B4N1/1r1qK1k1 w - - 0 1 illegal: No possible last move, all moves rejected
br1n2R1/N2K2r1/P1P1q2B/qq1p2b1/4nNNB/QPq3b1/Nb2R3/1B1k4 w - - 0 1 illegal: No possible last move
2n2N2/r3RBbQ/p1qn1R1r/K7/Nb1N2k1/1PPR4/Pb1q2bB/r2R1r2 w - - 0 1 legal: proof: c4 b5 Qc2 bxc4 Qd3 c5 Qb3 c3 Qa4 c4 Qd1 c2 h4 f5 e4 g5 exf5 c3 dxc3 gxh4 Kd2 Kf7 f4 Kf6 g4 d5 b3 h5 Bb2 c1B+ Kd3 e5 Rh3 a6 Qc2 e4+ Kd4 e3 Ne2 Bb4 Qe4 Nc6+ Kd3 d4 Kc4 d3 Na3 d2 Rb1 d1R Nd4 e2 Rd3 e1B Ra1 h3 g5+ Kg7 g6 Kh6 g7 h2 f6 h1R f5 Kg5 f7 h4 f8R h3 f6 h2 f7 Bh4 Bg2 Nf6 Qh7 Bb7 Bd5 Na7 g8R+ Kf4 Rb1 Rhf1 Rg7 h1Q Be6 Nc8 Ra1 Bd2 Bc1 Ne4 Bd5 Be3 Bd2 Rde1 Rd1 Bf6 Be6 Ra7 Bd5 Bbe7 Bc1 Ned6+ Kb4 Ba8 Nc4 Qh6 Ba3 Bc1 Nb6 Bb2 Na4 Bb7 Bc4 Bg2 Be6 Qd7 Ka5 Qc6 Bc5 Qh2 Bb6 Qh6 Bc7 Qg5+ Bd5 Kg4 Bb8 Ne8 Bh2 Ned6 Rfg8 Be5 f8N B5f6 Rf7 Bg7 Rf6 Qd2 Bf7 Kg5 Qe4 Rh6 Qh7 Kh4 Ng6+ Kg4 Re8 Nb5 Nf8 Bc5 Rc1 Nbd6 Re7 Rd1 Rc2 Rb1 Rc1 Ra1 Rd1 Bb4+
4qn1b/b5PB/3BqbN1/1rpNr1Pk/b2RP3/5rB1/2KnQ1Nr/3NR3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 b4 f5 g4 Kf7 d4 Kg6 Kd2 h5 b6 a5 d5 a4 b5 h4 e3 f3 d6 c3+ Kc2 f2 d7 a3 b7 a2 b6 h3 Qd4 h2 Be2 f1R Ba3 f4 Qd2 f3 Qd1 f2 Bc4 Rh5 Ne2 Nf6 Bg8 Bg7 Bd6 Qe8 d8N Ra5 Ne6 Nbd7 b8B Bh8 b7 Re5 Qe1 c6 Nc7 Nf8 Nd5 Bd7 Qd2 Ne4 Bh7+ Kf7 Qd3 Nd2 g6+ Kg7 e4 Kh6 Rg1 h1R g7 R1h2 Nef4 Rhf5 Qe2 Kg5 Kd3 c2 Ng2 c1B Nbc3 Qe6 Rb1 a1B Nd1 Bcb2 Rh1 Bd4 Kc2 Ba7 Rb4 c5 Ra4 Rf3 Rd4 Re1 Bbc7 f1Q b8N Bc6 Nd7 Ba4+ Kc1 Kh6 g5+ Kh5 Bb8 Qf2 Rg1 Rf1 Rh1 Qh4 Bbc7 Rf2 Re1 Qf4 Bb8 Qff7 Bbc7 Qfe8 Bb8 Rf5 Ne5 Bc3 Ng6 Re5 Qa6 Ba1 Qc4 Rb3 Qe2+ Rff3 Bbc7 Rf5 Bg3 Rb5 Bcd6 Bc3 Rd3 Bf6 Rd4 Nb3+ Kb2 Re5 Kc2 Nd2+
r5Bn/2nRqP2/bBrPN3/b4P2/1RRBb2R/4b1q1/nK5p/1QnN3k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 d4 Kd7 Kd2 Kd6 Kc2 Kd5 g4 Ke4 b4 h5 f4 c5 d5 e5 b6 a5 d6 a4 f6 h3 f5 c3 b7 h2 f7 c4 b5 a3 b6 a2 g5 h4 g6 h3 g7 Ne7 g8R Bh6 Bd2 Na6 b8B Be3 b7 Ng6 Be1 Nc7 Na3 Qe7 Ne2 Kf3 Qb1 e4 Nf4 Ra6 Ba7 Rc6 b8R Ba6 Rgd8 Rg8 Ne2 Nh8 Rb4 Re8 Rd7 Ra8 Bd2 Kf2 Kc1 c2 Kb2 c1N Nf4 Kg3 Ne6 c3+ Kc2 Kf2 Bd4 Kf3 Be2+ Kg2 Rf1 h1B Nc4 h2 Rf4 Kg1 Nb2 Bf3 Rh4 Kh1 Nd1 Bg2 Qb2 Bf3 Rb1 a1B Rc4 Na2 Qb6 Bg2 Rbb4 Bb2 Kb3 c2 Bh5 Bc3 Bg6 c1N+ Kc2 Bf3 Bh7 Bg2 Bg8 Bf3 Rb5 Ba5 Kb2 Bg1 Bb4 e3 Ka3 e2 Bbc5 e1Q Rb1 Be3 Qb4 Qd8 Bb6 Qe7 Qb3 Kg2 Qd3 Kg1 Rbb4 Kh1 Qb1 Qg3 Kb2 Be4
qn1BN3/K3pn2/P2B2kP/3B1b1N/7r/1qq4R/1rB1P1q1/1NQrbrR1 w - - 0 1 legal: proof: f4 a5 c4 h5 b4 d5 cxd5 axb4 g4 g5 fxg5 hxg4 Kf2 f5 Ke3 Kf7 Kd4 c5+ Kc4 g3 Kb5 g2 a4 b3 h4 c4 d4 f4 a5 c3 a6 f3 d6 c2 h5 f2 d7 b2 d5 Nh6 d6 Bg7 Nh3 g1Q Bg2 f1R Nf4 Qc7 d8B Qc3 Be4 Bf5 d7 Qg2 Kb6 Bf6 Be3 c1Q g6+ Kg7 Bd3 Nf7 Bc5 Bh4 Bc2 Be1 Rh3 Kh6 g7 Ra7 Kc7 b5+ Kb6 b4 g8B b3 Bd6 Rc7 Qd2 Rc6+ Kb7 Rb6+ Ka7 Qcc6 Qc3 Qd2 Qe3 Qdc3 Qc1 Rb4 Nd5+ Kg7 Nc7 Rh4 h6+ Kg6 Na3 b1Q Ne8 Qa2 Nb1 b2 B8c7 Rf2 d8N Qab3 Ne6 Rf3 Bd8 Rf1 Na3 b1R N6g7 Rb2 Nb1 Ne5 Bd5 Rf8 Bde4 Rf6 Nh5 Nf7 Bd5 Re6 Rh2 Ree4 Rh1 Rd4 Rg1 Rd1 Ra4 Rh3 Rh4 Rh1 Rh3 Rh2 Re3 Rh4 Rh3 Qa8+
1nrr3B/rP1q4/6B1/pP2QnPN/N1q1b2k/b1N2B2/1K1bb3/1RBR1r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kf6 Kc3 Kg5 g4 f5 e4 a5 b4 c5 b6 h5 d6 c4 d7 h3 b5 h2 e5 h4 e6 h3 b7 Ne7 d5 Kh4 d6 f3 g5 f2 Qb3 f4 Be2 f1R Kb2 f3 Nc3 f2 Na4 Nf5 e7 Ra7 e8B Be7 Rb1 c3+ Ka3 c2 Qd5 Qc7 d8N Qd7 Bg6 Rg8 Ne6 Rd8 Qe5 Bf8 Bb2 c1B Ng7 Bd2 Nh5 Rc1 Bd1 f1Q Bf3 Qc4 Ne2 Be7 Rg1 h1R Nec3 h2 Rd1 Rc2 Bc1 Rf1 Bg4 h1B Be2 Be4 Bf3 Qe2 Kb3 Qe8 d7 Ba3 Na2 Rc5 N2c3 Qe7 Ka2 Qc4+ Ka1 Rf8 d8B Qd7 Be7 Rd8 Bf6 Qg7 Rb4 Be6 Rb2 Rcc8 Rb1 Qd7 Bg7 B6d5 Bh8 Bd3 Bh1 B5e4 Bf3 Bc5 Kb2 Be2 Qg7 Bd6 Qe5 Ba3+
K1n1qN2/1prqkPQ1/4N3/b1P1qnr1/B4B1N/q2BRN1b/5Pr1/3Rr3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 e5 Kd3 h5 Kc4 d5+ Kb5 h4 a4 e4 c4 e3 g4 e2 a5 e1Q a6 b3 a7 b2 f6 h3 g6 h2 g7 d3 g5 d4 g6 d2 Qg4 d1Q Bf4 d3 Nf3 d2 Nh4 Qf3 Bd3 d1Q Ra3 Rh7 Nd2 Ne7 g8N Nbc6 g7 Nf5 Ne7 b1R+ Rb3 Rh5 g8B Rg5 Neg6 Bb4 c5 Ba5 Nf8 Qe5 f7+ Ke7 Bh7 Qfe3 Ndf3 Qe8 Re1 Qdd2 Rd1 h1R Bg6 Rb8 a8N Rh2 Nc7 Rg2 Nce6 Ra1 Bc2 Qdd7 Qg3 Qc1 Re3 Qa3 Ba4 Rc1 Rd6 Re1 Rd1 Qd2 Bh7 Bd7 Bg6 Rc8 Bh7 Rc7 Bg6 Bb4 Kb6 Na7 Qg4 Bc8 Qg3 Qdd7 Qg4 Ng3 Bd3 Nf5 Qg3 Nb5 Qg4 Nbd6 Ka7 Ba5 Ka8 Qc6 Nd8 Be6 Qg3 Qcd7 Qg4 Nc8 Qg3 Rh5 Qg8 Rhg5 Qg7 Bc4 Nde6 Bb5 Bdc2 Bf1 Bd3 R2g3 Nh7 Bh3 Nhf8 Rg2
qKbQ1rR1/p2rP1q1/1BN2R2/1n1n3q/1nP5/P2r4/BrN2N2/1Br1B1k1 w - - 0 1 illegal: No possible last move
1R5N/Kr2NqRb/2bq1r2/b3NnqP/1P1b3p/4NQ1P/kB3R2/q2B1q2 w - - 0 1 legal: proof: f4 b5 d4 h5 a4 e5 axb5 exf4 d5 Nc6 g3 Nce7 d6 Ng6 Qd3 Nh4 Qd4 cxd6 Qd1 d5 Na3 d4 Nb1 Nf5 g4 h4 Qd3 Ng3 Qd1 Nh5 gxh5 Qb6 Nh3 Qf6 Ng1 Qd8 Kf2 Ke7 c4 Kd6 e4 Kc5 b3 Kb4 h3 d5 b6 a5 b7 f5 b8N g5 e5 g4 c5 a4 c6 a3 e6 g3+ Kf3 g2 e7 a2 e8N d3 c7 d2 Ng7 d4 Bd3 Nh6 Nd7 Qg5 Kf2 f3 Ba6 d3 Bb7 f4 Nf5 Ra6 Bd5 Bb7 c8R Rf6 Na3 Bc6 Ne7 Nf5 Ne2 Rhh6 Bb2 Bg7 Rc1 a1Q Rg1 Bh8 Qf1 d1Q Nc4 d2 Ne3 Bg7 Ne5 Bh8 Bd4 Ka3 Rb8 Ka2 b4+ Qb3 Bf7 d1Q Bb2 Qd6 Rc2 Bg7 Bd5 Qc4 Be4 Qf7 Rd2 Rhg6 Bc2 Bh8 Bd1 Rh6 Nd4 Bg7 N7g6 Bh8 Ke1 f2+ Ke2 f3+ Kd3 Bg7 Qe2 f1B Nh8 f2 Kc3 Rhg6 Qf3 Bd3 Rc2 f1Q Rf2 Bce4 Ndc6 Bb5 Ne7 Bbc6 Rh1 g1B Rhh2 Re6 Rhg2 Rgf6 Nd3 Bh2 Kc4 Be5 Rg4 Bd4 Rgg2 Bb6 Rg4 Ba5 Rg1 Bcd5+ Kb5 Bc6+ Ka6 Ng3 Rd2 Bh7 Rf2 Nf5 Ka7 Rh6 Rb6 Bd4 Ne5 Ref6 Rg3 Qf4 Rg6 Qg5 Rg7 Bb7 Qf4 Qd8 Nd3 Re6 Nc2 Rhf6 Ne3 Rc6 Qf3 Qd6 Nc5 Ba8 Rb8 Rb6 Nd7 Bc6 Ne5 Rb7+
1R2B2K/Rq5N/N3n2r/k1r1q2n/B3p3/r1Pqb2R/1P1rP3/1qq1BR1Q w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 d5 Kd3 Kd7 f4 Kc7 c3 Kb6 f5 a5 g5 h5 g6 e5 f6 a4 f7 h4 g7 h3 Na3 h2 Qb3 Ka5 b6 Nc6 b7 Nf6 b8R Bc5 f8R Nh5 g8B Qe8 Bf7 Nd8 Nb1 a3 Qc4 a2 Rb7 Rh6 Bd2 Rc8 Be1 Ne6 Nf3 g1Q Rb8 g2 Nbd2 Ba7 Qb3 Rc5 Ng5 Qe7 Nde4 Bb6 Rb1 a1R Qd1 Ra3 Ra1 Qb7 Be8 Qe3+ Kc2 g1Q Nh7 Qc1+ Kd3 Qgg7 Bh3 Qh8 Rhf1 h1Q R8f3 Qhg7 Bg4 Qh8 Rh3 Qb1+ Kd2 d3 Ke3 d2 Qc1 d1Q Ba4 Neg7 Bgd7 Ne6 Be8 Qg1+ Kf3 d4 Ra2 Qh1+ Kg4 d3 Kf5 d2 Ra1 Qdc2 Ra2 d1R Ra1 Rb5 Ra2 Rd3 Nc5 e4 Ra1 Rd2 Ra2 Rb4 Na6 Rc4 Ra1 Qd3 Qd1 Nf6 Ra2 Be3 Qc1 Rh4 Kg6 Nh5 Qd1 Qe5 Ra1 Qb6 Kf7 Qc6 Kg8 Qb7 Ra2 Rc5 Qc1 Nhg7 Kh8 Rh6 Rf7 Ng5 Bf2 Qbc2 Nc7 Kb6 Bad7 Rb3 Ra7 Ra3 Ba4 Qb1 Na6 N5e6 Bh4 Ka5 Rff3 Qg2 Qh1 Qgg1 Bg3 Qge1 Rf1 Qec1 Be1 Nh5+
4Br2/Q1R1R2p/2B2qN1/2P2N1r/3P4/KB1rrr2/1b2kq1P/BNb1bb1n w - - 0 1 illegal: No possible last move, all moves rejected
3K2N1/1PQ1r1pR/r1Bq2P1/1qRb2Rr/bP1b1N2/3qR3/Nn2qr2/k1B5 w - - 0 1 illegal: No proof kernel
B1R1q1nn/2nbR1rB/pBNR2N1/1Q1B1q1P/P1rr4/3qnK2/q6P/2k5 w - - 0 1 legal: proof: d4 h5 c4 b5 g4 bxc4 gxh5 e5 f4 exd4 e4 Ke7 e5 Ke8 e6 Ba3 Kf2 Bd6 Ke1 Be5 fxe5 Ba6 Bd2 Bb7 Bc1 Bc8 Ke2 Ke7 b4 d5 a4 f5 b5 g5 b6 c5 b7 g4 Nc3 f4 Bb2 d3+ Kf2 d4 Nce2 f3 Qc2 g3+ Ke1 g2 Kf2 c3 Ra3 c4 Qb1 c2 Nf4 c1Q Qa2 d2 Ngh3 g1N Qa1 d1N+ Kg3 d3 Kg4 d2 Nf2 c3 Qb1 c2 Ba6 Ne3+ Kg3 d1Q Rc3 Qe8 Rb3 Nh3 Rb6 Bd7 Ng4 f2 Bd3 f1Q Bh7 Ng5 Rd6 Na6 b8R Nc7 Rc8 a6 Bd4 Qb2 Bb6 Qa2 Qb5 c1R Rg1 Qfd3 Re1 Ra7 Re2 Nf7 Kf3 Q1c2 Re1 Kf8 e7+ Kg7 e6 Qf5 Re2 Qcd3 Ne5 Kh6 Nc6 Kg5 Re1 Rc4 Re2 Qd8 e8B Rd4 e7 Rb7 Bg6 Rh6 Bh7 Nh8 Bf7 Qe8 Bd5 Re6 Na5 Ree4 Re1 Ra7 Ba8 Rc4 Nc6 Red4 Re2 Qf7 e8B Qe6 Bf7 Qe8 Kf2 Kg4 Ke1 Kf3 Ng6 Ke4 Be6 Qda3 Bd5+ Kd3 Nf4+ Kc3 Kf2 Q3b3 Kf3 Qd1 Bf7 Qdd3 Re1 Kd2 Bd5 Qg5 Re2+ Kc1 Ng6 Qgf5+ Nf4 Ng4+ Re3 Ne6 Ne5 Bc6 Bc5 Re7 Bb6 Bd7 Nc6 Rg7 Qc5 Qdb1 Qb5 Nc7 Re4 Ne3 Re7 Qe6 Ng6 Qd3 Nf8 Qe5 Ng6 Qef5+
rN1q4/1P2pbN1/1nB1b1B1/R1PR4/3n1b1b/K1k1n3/Q1q1PnqB/3RR3 w - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kf7 f4 Ke6 c4 h5 Kc2 d5 Kb3 h4 b6 h3 g6 g2 c5 h2 g7 d3 b7 a4+ Kb4 d4 f5+ Kd5 f6 g3 f7 a3 Qc2 d2 Nf3 g1B Nh4 d1Q Nf5 g2 Bf4 d3 Nd2 a2 Nf3 d2 N3d4 Be6 Ka3 Nh6 g8B Bf2 b4 g1Q b5 Qg2 b6 Ng4 Nc6 Ne3 Bh7 Bh6 f8R Bh4 Ng7 Nd7 Nb8 Kd4 Bg6 Rg8 Bg3 Bf4 Rf5 Rh8 Rg1 h1N Bh2 Nf2 Rc1 a1N Qa2 Qc2 Rd1 Rg8 Rd5+ Kc3 Re1 d1B Rh1 Qg4 Bg2 Nb3 Rhf1 Nd4 Rh1 Qcf5 Bf3 Bc2 Rd1 Ba4 Rhe1 Bb3 Nc6 Bh6 b8R Bf4 b7 Qb6 Rd6 Bf7 Bd5 Qc2 Ra8 Qg2 Ra5 Ra8 Nb8 Qd8 Bc6 Bbe6 Rd5 Nb6
2rR1r2/2r3Rn/1N2BrpB/1rnBQ1RK/2bP1R2/1k2n1PN/3b1Pn1/6r1 w - - 0 1 illegal: No possible last move, all moves rejected
Bn3Rq1/K2b3N/Q3nb2/1PRp1p1r/1B1k4/2qP2b1/P2Bq2R/1n1R2rN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 exf4 b4 b5 cxb5 axb4 Kf2 Ke7 e4 Kd6 h4 Ke5 h6 f5 d3 g5 h7 c5 h5 g4 h6 b3 Nh3 f3 Ke3 f2 Nc3 d6 Bg2 f1Q Nd5 g3 Nf2 c4 Nf6 b2 Bd2 b1N Qa4 c3 Qa6 c2 Rh2 c1Q Nh1 Bd7 Bf3 Ke6 Kd4 g2 e5 Qe2 Bc6 Ra7 Ba8 Ne7 Bb4 Rg8 h8R Bg7 Nh7 Bf6 Bd2 Rg7 Rf8 Ng6 Bb4 Qa3 Bd2 g1B+ Kc4 Nc3 Rd1 Nb1 Bb4 Nf4 Bd2 Ke7 e6 Bf2 Bb4 Qe8 Bd2 Qc1+ Kb4 d5 Ka5 Bg3 Kb6 Kd6 e7 Qg6 e8R Ne6 Rc8 Ke5 Rc5 Kd4 Bb4 Rc7 Bd2 Rc6+ Ka7 Qf7 Ng5 Qg8 h7 Rg6 h8B Qc3 Nh7 Rh6 Bg7 Rh5 Bgh6 Rc8 Bhf4 Re8 Bc7 Re7 Ba5 Rg7 Bb4 Bc7 Qb7 Rg1 Qa6 Bg3
B1rBr1Rq/1bnn1N2/r1RN2QB/P4Bb1/3qN3/K2p4/pPP4b/n2k4 w - - 0 1 illegal: No proof kernel
2Rnn3/N1Bq1Bp1/b3n3/4RN2/1rbP4/k3r1Pq/PNK2B1p/1r2Q1bB w - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 h4 Qd6 b4 axb4 fxe5 Qh6 h5 Qxh5 Na3 Qh6 Nb1 Qh2 e4 Ke7 g3 c5 d3 b5 e6 Kd6 e7 h5 e8B f5 Bg6 c4 e5+ Kc5 e6 h4 e7 h3 e8N f4 d6 b3 d7 Kb4 d8B b2 Nf6 f3 Ne2 c3 Bf4 c2 Kd2 c1N Nh7 f2 Be4 Ra3 Nec3 Bc5 Ne2 Ba6 Nec3 Nf6 Bb6 Nc6 Qe1 Nd8 Nd1 Ne8 Nbc3 b1Q Nf8 Ne2 Ng6 Rh4 Ne7 Nd4 Bc6 Qb3 Rc1 Qf7 Bd5 Qf5 Bfg2 f1B Bf7 Qd7 Ba7 Be2 Rf1 Bb6 Bh1 N4e6 Rf2 Bf1 Re2 Bg1 Nf5 Qg2 Bae3 h2 Bf2 Qh3 Bb8 Rb3 Re5 Ka3 d4 b4 Rc2 Re4 Kc1 Re3 Nb5+ Ka4 Rc8 Bc4 Na7 Ka3 Bc7 Rb2 Nc3 b3 Kd1 Rc2 Na4 b2 Bc6 Rcc3 Bh1 Rb3 Kc2 b1R Nb2 Rb4
4N1q1/nN1pN1rB/1q3P2/3n4/rN3B2/1k2P1p1/1b1nPB2/Rrq1QKRb w - - 0 1 illegal: No proof kernel
7r/2p1PRNK/n1r5/r3qPQP/1N1qbB1p/1R1nRb1B/3n1R2/1N4bk w - - 0 1 illegal: No proof kernel
3QR3/p4Bqp/n1PNb3/3RnBK1/2R2rP1/1r1P3N/q4Bkb/1qr2Rb1 w - - 0 1 illegal: No proof kernel
2k2B2/1Nnr1B2/r1pRQbP1/1n1p1B2/1bR2N1n/n5PP/2K3B1/R3qb1n w - - 0 1 illegal: No proof kernel
5rBR/nkb3Nb/1P1nbRb1/K1Pp1PNn/3B4/1R4p1/1R2NqbQ/4r3 w - - 0 1 illegal: No proof kernel
4r1B1/q3b3/1p3R1R/1P2b2B/n4B1r/NrpN2n1/rPKPQn1k/B1r3N1 w - - 0 1 illegal: Other
NRB2R2/2Br1B1P/N1n1Rb2/5q2/1r1rbP1n/3p1k1p/2BbbP1Q/2b2K2 w - - 0 1 illegal: No proof kernel
1RQ1bk1N/4rn1P/PpR1Pb2/B4R1K/5R2/3b1p1q/1Bb2rr1/nB1N1b2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 f5 Kg3 d5 a4 g5 c4 g4 h4 b3 e4 b2 c5 b6 c6 d3 h6 d2 h5 d4 a5 d3 e6 Na6 h7 Nb8 e7 f4+ Kh4 g3 e5 f3 h6 g2 a6 Bg7 c7 Nd7 Ra4 Nc5 Nh3 g1R Qc2 d1B Bd2 Rg2 Ng5 Ra7 Nf7 Bf6+ Kh5 Nb3 Rf4 Be2 Nc3 b1B Nd1 Bd7 c8R Na1 Rc6 Qc8 Ba5 d2 Qc1 Bb5 Bd3 Rf2 Be4 B1d3 Rh2 Bf1 Bb1 Bbd3 Rf5 Rc7 Rh4 Rb7 Rhf4 Ra7 Ne3 d1B Qc3 B1c2 Nd1 Rc7 Rd6 Bda4 Rc6 Kd7 e8R Bab5 Rd8+ Ke7 Qc4 Qd7 Rb8 Rg2 Rb7 Kf8 Rb8+ Qc8 Qc5+ Re7 e6 Rf2 Rd6 Be8 Qc6 Qb7 Qc8 Rg2 Rc6 Qc7 Rfc4 Qg3 Rcf4 Qh3+ Rh4 Rf2 Kg6 Bb3 Rf4 Bg7 Kg5 Nf6 Kg6 Rg8 h8B Ng4 h7 Bbc2 Kg5 Nh6 Kg6 Qg3+ Kh5 Qh3+ Rh4 Bb2 Bf6 Rg6 Nh8 Nf7 Be5 Rgg2 Bec3 Bc1 Be5 Bg5 Bb2 Qg3 Re4 Bf6 Ref4 Qh3+
2q5/1B4PP/2b2R1n/r6B/1Q1Npb1B/bN1pR3/KBN1rPk1/nrrr4 w - - 0 1 illegal: No proof kernel
3k4/2n1pnPR/br1Bb1Br/QN2r1B1/4PB2/rNq1n3/1K1p1PrR/6N1 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Rh3 Bh6 Rh1 fxg4 Bf4 g3 Be3 g4 Bc1 Bg5 hxg5 Kf8 Rh6 Kf7 Rh1 Ke8 Kd2 a5 b4 d5 c4 h5 Kc2 h4 g6 d3+ Kb2 d4 b6 a4 b5 g2 c5 h3 g7 h2 b7 g3 c6 Qc7 e3 Be6 b6 Ra6 Ne2 g1R Bd2 a3+ Kc1 g2 Qc2 a2 Qa4 Nh6 Kb2 Nf7 Qa5 Kd8 Bc1 Rh5 Nd2 Re5 Nb3 Qc8 Rb1 a1R Bd2 Ra3 Ra1 Nd7 b8B Nc5 b7+ Rb6 Bd6 Na6 Rc1 Re4 Rc5 Qc7 Rh5 Re5 Rh7 Qc8 Nc3 Qc7 Be2 Rd1 Bf3 g1R Be4 Rg2 Ne2 Rdg1 Bc1 Rg6 Bf5 Rh6 Bg6 Rg2 e4 Qc8 Rd1 h1N Be3 Ng3 Rh1 d2 Ng1 d1B Rh2 d3 Bg5 d2 c7+ Kd7 Qc3 Be2 Qc5 Nf1 Qa5 Rd5 Bdf4 Re5 b8B Bb5 Bh4 Ne3 Bhg5 Qe8 c8N Kd8 Bd6 Qc6 Na7 Nc7 Nc8 Be2 Na7 Ba6 Nb5 Qc3+
5K2/kpbq1B2/4n1b1/rPPN2Q1/3Nr1rB/1R2n3/PRrRRrp1/1N3b2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 c5 gxh5 Na6 d4 cxd4 b5 Nb8 Qd2 Qc7 Qc3 Qd8 Qb4 axb4 Ke2 e5 Kf3 g5 Kg4 d5 c4 Kd7 f4 Kc7 h4 Kb6 c5+ Ka7 h6 e4 Kh5 d3 Kg6 g4 Kf7 d4 f6 g3 f5 d2 h5 d1R h7 d3 h6 d2 Ne2 e3 Nec3 b3 Nd5 e2 Rh2 e1R Bc4 b2 Re2 Ne7 Bb3 Rg8 h8R g2 h7 Rg4 Rg8 Qc7 h8Q Na6 Qh6 Qd7 Qg5 Nc7 Rh8 Rf1 Rh3 Rde1 Rd3 d1B Rdd2 Bg7 Bc4 Bh8 Kf8 Rf2 f7 Be5 f6 Nf5 Nbc3 b1R Re4 Na6 Rdd4 Bc2 Kg8 Ng3 Bf4 Rfe2 f8N Qd6 f7 Bd3 Nf6 Kb8 Ne6 Nc7 f8R Nf5 Bg3 Rbb2 Bh4 Ra5 Rb1 Ka7 Re8 Red2 Re3 Rbc2 Rb2 Rf2 Nb1 Bf1 Reb3 Bd7 Re7 Be8 Rd2 Bg6 Nd4 Qd7 Bf7 Bh2 Ree3 Ne6 Nd5 Bc7 Re5 Re3 Re4 Rec3 Ree2 Re3 Rdd3 Ree4 Rdd2 Nd8 Kf8 Ne3 Kg7 Ne6+ Kg8 Nf4 Kf8 Ne6+
b4bBR/p3nK2/P1bn1Q1B/kn6/4NNr1/2bP1pP1/BN4br/2NR1q2 w - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 e5 b4 exf4 bxc5 d5 c4 dxc4 Kf2 Kd7 Kf3 Kc7 Ke4 h5 Ke5 b5 a4 f5 e4 b4 d3 b3 c6 Kb6 c7 c3 g6 b2 g3 c2 g7 h4 Qd2 f3 Na3 b1N Qf4 f2 Bg2 f1B Ne2 Bd7 c8N+ Ka5 Ne7 h3 Nd5 Bc6 Ke6 h2 e5 Nh6 g8B Nf7 Qh4 f4 Qf6 Nd6 Nc4+ Ka6 a5 Na3 Be3 c1B Nb2 Bd2 Rd1 Nab5 Nc1 Bc3 Bf3 Bg2 Bg4 Ne8 Kf7 Qb6 Bd2 Qf2 e6 Qf1 e7 Rh4 Be6 Rg4 Rg1 h1B Be3 Ng7 e8N Nf5 Nd6 Rh4 Ne4 Nfd6+ Kg6 Rh2 Bd2 Nd7 Bef7 Nb6 Be3 Nbc8 Be6 Nc4 Kf7 Ne7 Bd2 Bf3 Be3 Bhg2 Rh1 Rd8 Nb6 Rd4 Nd5 Bg4 Bd2 f3 Nf4 Bf5 Bd5 Bc8 Be6 B8b7 Bd5 Ba8 Be3 Kb7 a6+ Kb6 Bd2 Ka5 Be6 Rh4 Rh2 Rg4 Rh8 Rd5 Be3 Rh5 Bd5 Rh2 Bd2 Ne3 Ba2 N3f5 Nh5 Ng7 Bh6 Ne8 Nf4 Ned6+
R2R1Nbr/4b1K1/Q1B2nR1/BP1pnP2/1R2b1n1/1pB5/4brP1/1Nqr2k1 w - - 0 1 illegal: No proof kernel
nbBR1N1n/b3r3/1n1PP3/1pR5/RBr1N3/NprK1k1P/1Q1R2b1/2r3q1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 e4 Ke7 Ke2 Kd6 a4 Ke5 a5 b5 a6 f5 a7 c5 h6 g5 h3 b3 h7 c4 d3 c3 d6 g4 d7 f3+ Ke3 f2 Ke2 f4 Ra5 c2 Ra6 g3 Ba3 c1R Ra5 f3+ Kd2 Kf4 d4 g2 e5 Qg5 d8N Rc2+ Kd3 Na6 d5 Bb7 e6 Rac8 a8R Nh6 Bb4 Bd6 Ra2 Bb8 d6 Nf7 Nc6 Rhe8 h8R Nc7 Ne5 Re7 Rd8 Nh8 R8a4 Na8 Na3 R8c4 Qa1 Qg7 Be2 f1N Nd7 f2 Bf3 Ne3 Nf8 f1R Qb2 Rfc1 Bc6 Qg4 Nf3 g1B Nd2 Nd5 Ne4 Ndb6 Bd7 Kf3 Bc8 Bf2 Rd1 Qg1 Rd2 Nd5 Ra6 Bfa7 Rc6 Ndb6 Rc5 Kf4 Ng3 Bg2 Ne4 Kf3 Nb1 Rd7 Ra4 Re7 Na3 R2c3+
2R1K1nb/3p2Q1/1n1k3P/Bq2bPNN/BbpP1bR1/3B4/2r1N1r1/N2n2r1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 hxg4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Ba3 b4 Bc1 Bb5 cxb5 Rh7 Bb2 Rh3 Bc1 Rh8 Ke2 g5 Ke3 c5 Ke4 e5 Kd5 Ke7 h4 c4 d4 g3 a4 g4 f4 g2 b6 g3 a5 b2 h5 e4 f6+ Kf7 b7 b3 a6 e3 f5 e2 a7 e1B h6 Bfb4 Na3 b1N Bd3 b2 Bd2 Qe8 Qg4 Na6 b8N Nc5 Kd6 Nc3 Ne2 b1R Na6 g1B Nc7 g2 Nd5 Be3 Rg1 Nd1 Nc2 Bh4 Ndf4 Na4+ Kc7 Qf8 Nh5 Nb6 Qg7+ Ke8 f7+ Ke7 Ra3 Bf6 Na1 Rb2 Ra5 Rc2 Rc5 Rd8 a8B Bf4+ Kb7 Re8 Rc8 Kd6 Bc3 Qe7 f8N Qe5 Nh7 Qb5 Ng5 Re3 Kb8 Rg3 Bc6 Rh7 Qf7 Bh8 Qg7 Qe5 Ba4 Qb5 Rh1 g1B Rh4 Rg2 Rg4 Bgh2 Kb7 Bc5 Ba5 Bb4 Qf8+ Re7 Qg7 Be5 Kb8 Bhf4 Kb7 Re6 Kb8 Kd5+ Kb7 Rd6 Kc7 Rg6+ Kd8 Kd6 Ke8 Rg1 Nh7 Rf1 Rg3 Rg4 Ng5 Rg1 Rg2 Rh4 Rg3 Rh2 Rg4 Rhg2
1K1b1q2/1NP3B1/1Qrn3R/pR1bRb2/kr4nn/Pb2NBp1/4B1P1/4B2r w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 c5 bxc5 Qb6 Nc3 Qh6 Nb1 Qxh2 Kf2 Kd7 Kf3 b5 Ke4 h5 Ke5 a5 d4 g5 e4 f5 a3 b4 d6 Kc6 d7 f3+ Bf4 b3 d8R f2 Rd7 g4 Qe1 h4 Nf3 h3 Nc3 b2 Na4 b1B Rd5 g3 Qe3 Be6 Be2 f1B Nd2 Rh6 Nc4 Kb5 c6+ Bc5 Qg1 Na6 Bd2 f4 Be1 f3 Ne3+ Bd3 c7 f2 Bf3 Bc2 Rb1+ Bb3 Rb2 Bf7 Rb1 Bg6 Ke6 Ne7 Kd7 Nf5 e5 Bc4 e6 f1N e7 Nh4 e8B Rb8 Re5 Bd5 Rb2 Bge4 Beh5 Be7 Nc5 Bd8 Nb7 Ka4 Be2 Bh7 Bhf3 Rc6 Qf2 Qg1 Rb1 h2 Rb2 Bf7 d5 Bd3 d6 Bfd5 Nd1 B3e4 Qb6 Ne3 Rb1 Ng4 Ne3 Qf2 Rb2 Ra8 Rb1 Ra7 Kc8 Bf5+ d7 Nc5 Kb8 Ne4 Rb2 Nd6 Rb1 Bg5 d8B Ra6 Bf6 Qf1 Qc5 Rab6 Bg7 Rb4 Qb6 Bd8 Rc1 Qg1 Rc5 Qf2 Rb5 Bd7 Be4 Qf8 B4f3 Bf5 Rg1 h1R Rf1 Rh3 Rh1 Ng6 Rh2 Rh7 Rh5 Nh4 Rh6 Ng6 Rh4 Rh6 Rh5 Rh8 Rg5 Rh4 Rh5 Rh1 Rh6 Nh4
1nbb1B1r/1PR4n/P1b4p/BN2Rnr1/Q5RP/K1pr1N2/q2R4/1kB4r w - - 0 1 legal: proof: d4 f5 g4 b5 gxf5 e5 dxe5 a6 c4 Be7 b4 Bf8 Bg2 Qh4 Bc6 bxc4 b5 Qg5 b6 Qd8 Bb5 axb5 Kd2 Ke7 Kc3 d5 Kb4 g5 h4 c5+ Kc3 b4+ Kb2 g4 e4 g3 a4 g2 f4 d4 b7 b3 e6 Kd6 a5 d3 f6 h6 f5 Ke5 a6 Kd4 e5 c3+ Ka3 c2 f7 d2 f6 Kd3 e7 c4 e6 b2 Qg4 d1N Qf4 c3 Ra2 Ne3 Qa4 Qa5 Nf3 Nf5 Rg1 Bg7 e8R Qd5 Bf4 c1R f8B Re1 f7 Bf6 Bc7 Bd8 Re7 Nf6 Ba5 Nh7 Rc7 Re3 e7 Re5 Rc1 g1R e8R Rh1 Rg1 Qe6 Rg4 Rb5 Qf4 Kc2 Qa4+ Kc1 Be7 Rd5 f8B Rd3 Bd6 Rg8 Bde7 Rg5 Bc5 Qc4 Re5 Qg8 Kb4 Qf7 Na3 b1B Rd2 Qa2 Nb5 Bc2 Be3 Kb1 Bf4 Bb3 Be3 Bd5 Bf4 Bc6 Be3 Qf7 Ka3 Qe6 Bf4 Qa2+ Kb4 B8d7 Rh2 Bf6 Bd6 Be6 Rhe2 Nd7 Bc1 Rh8 Bf8 Bd8 Rf2 Nb8 Rd2 Qd5 Ka3 Bc8 Ree2 Qc4 Re5 Qa2+
k2bB1Nq/P7/1nKB3R/rPnP2n1/nrN4Q/3p1p1b/R5r1/3bBBR1 w - - 0 1 illegal: No proof kernel
1B1r1N1b/2N1q3/3Pqn1P/Nb1Q4/kn1BBB1K/1r1r2P1/2p3p1/r2R2rR w - - 0 1 illegal: No proof kernel
4Rq2/3q2N1/1Pr1n1QP/Rp2r1Rb/4N1nR/4K2p/r1P3Br/bkBN2r1 w - - 0 1 illegal: No proof kernel
N1rR4/2q5/P1B3n1/1q1RbR1b/r1qpq3/1RP1NP1B/kp2KBn1/2qQ4 w - - 0 1 illegal: No possible last move, all moves rejected
1k4r1/1n2B2P/3N1B2/1bbNbp1P/Bq2r2p/N2NP2Q/bn1qR3/2R2K1b w - - 0 1 illegal: No proof kernel
k4q2/rbRr1Q1p/r3PB2/b2qP2r/6nK/1P1N2r1/1B2Rp2/RBn3NB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 d5 e4 Kd7 g4 Kc7 c4 Kb7 b3 f5 b6 a5 e6 f4 e5 d3 c5 h3 g5 f3 Kg3 f2 g6 d4 g7 a4 Qe2 h2 Ba3 d2 Kg4 d1R Nc3 d3 Nd5 d2 Nb4 Na6 Bb2 a3 Nd3 Ra7 c6+ Ka8 c7 a2 Bg2+ Bb7 Qf3 Nb4 Qf7 Nf6+ Kh4 Rg8 c8B Bd6 Be4 Qf8 Bd7 Bb8 Bdc6 Ng4 Bg6 Bc7 Bf3 Rh8 g8R Ra6 Rg7 Rg8 Nf4 Ra7 Bb1 Nd3 Be4 Nc1 Nd3 Re1 Bd5 d1Q Bf3 Re4 Bg2 Rd4 Bd5 Bc6 Bg2 Rd7 b7+ Kb8 Bf3 Ba5 Bg2 Ra6 Bf3 Ka7 b8B+ Ka8 Bc7 Bb7 Bd8 Ra7 Bg2 Qf3 Bf6 Qd5 Nf3 Ra6 Re1 Ra7 Ng1 h1R+ Kg5 Rh3 Re2 Rg3 Kh4 Ra6 Rg5 Ra7 Rf5 Rg5 Bh1 Ra6 Rf4 Ra7 Rc4 Ra6 Bc2 Rf5 Rc7 Ra7 Rb1 a1R Nf4 Bc3 Nd3 R1a6 Ra1 Ba5 Bb1 Rh5+
1b3r2/k2B1P1r/B3q1K1/2pPqnnR/1r1p3N/r4N2/1rRRbP1R/B3Q3 w - - 0 1 illegal: No proof kernel
B3R2R/2nK1P2/nbN2B1Q/P2Rp1nn/8/k1q1p1P1/1r3q2/1nNbB1rB w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 e5+ Ke3 Kc5 f4 h5 g6 b3 d4+ Kb4 f5 c5 f6 h4 g3 h3 d6 b2 a5 c4 d7 c3 d5 h2 g7 c2 d6 Na6 Nc3 b1N Nge2 Qb6+ Nd4 Rb8 d8R Na3 d7 Bc5 Bd2 c1Q Bg2 Qa7 f7 Bb6 Qh5 Nf6 Qh6 Nh5 g8B Qc2 Rhd1 h1N Be1 Nf2 Bh1 Nh3 Re8 Ng5 d8B Bg4 Ne2+ Qc3+ Rd3 Rh7 Nc1 Bd1 Bf6 Ka4 Ra2 b4 Rh2 b3 Rh3 Rh8 Bh7 b2 Bf5 b1N Bg4 Qac7 Bgf3 Nb5 Bfg2 Qa7 Rh4 Nc5 Nc6 Nc7 Rh3 Qb2 Rd5 Ka3 Bf1 Qa1 Ba6 Qb2 Bb7 Qa1 Ba8 Qc3+ Kf2 N5a6+ Kg2 Nf3 Rh2 Rh7 Kh3 Rb7 Kg4 Ng5+ Kf5 Rh8 Re6 Rd8 Re8 Rd6 Rc5 Rd2 Rd5 Rg2 Rdd8 Rg1 Rhd2 Bc5 R2d5 Rb2 Rh8 Bd4 Rde8 Bb6 Bd8 Ng7+ Kf6 Nh5+ Ke7 e3 Kd7 Qb7 Bf6 Qc8+ Ke7 Qf5 Kd8 Qf3 Kd7 Qf2
bn5n/1PBB1PpB/k1n1n2N/1r1K4/2nRQ1q1/r1p2P2/1bN5/RRB4q w - - 0 1 illegal: No proof kernel
b6B/Pkq1BR1b/nP2nKQb/R2r2Nr/1Bq1b3/PBR1N2b/3p3p/8 w - - 0 1 illegal: No proof kernel
2q3Nr/pPQq1Rp1/6B1/K1rN2b1/P5Pn/q2RBqn1/q1B2B2/k1b2R2 w - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 f5 c4 bxc4 Na3 Bb7 Nb1 Bf3 h3 fxg4 Bh6 g3 Bc1 Bg4 hxg4 Bc5 Rh3 Be7 Rh1 Bf8 Kd2 Kf7 Kc3 Ke6 b4 d5 f4 c5 e4 h5 a4 d4+ Kc2 d3+ Kc3 h4 b5 d2 b6 h3 b7 g2 Bd3 h2 Ra3 Nd7 Nh3 g1Q Qc2 d1Q Nd2 Qf2 Rf1 h1Q Rb3 Ngf6 f5+ Ke7 e6 Kd6 e5+ Kd5 e7 Rc8 e8R Nh5 e6 Be7 f6 Ng3 f7 Ne5 f8B Ng6 Bf5 Bg5 e7 Nh4 Ne4 Qhf3+ Be3 Rc6 Ra3 Qc8 Nf4+ Ke5 Rb3 Qdd7 Nd5 Rc7 Qc1 Qa2 Nef6 Rc6 Bc2 Rc7 Kd2 c3+ Kd3 Rc6 Kc4 Rc7 Ng8 Rc6 Kb5 c4 Bd1 c2 Rd3 c3 Ka5 Rc4 Rd8 Rc6 e8B Rc5+ Kb4 Ke4 Bg6+ Ke5 Qd2 c1Q Qh2 Qca1 Bc2 Qc1 Be7 Qca1 Rf8 Q1b2+ Bb3 c2 Rf7 c1B Bf8 Rc2 Bf2 Qba3+ Ka5 Rc4 Bc2 Rc6 Re3+ Kd4 Bd6 Rc4 Bf4 Rc3 Rd3+ Kc4 Bb1 Kb3 Bc2+ Kb2 Bd2 Ka1 Bde3 Ngf5 Qb8 Ng3 Qc7 Rc5+
b3N2n/1bn2NrB/8/2Qb1KR1/1p1b2Pk/P2p4/1r1Pqnq1/1RBRR2N w - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 a6 b4 g4 b5 axb5 h3 bxc4 hxg4 c3 g5 Be7 Ba3 Bc5 Bc1 Bf8 Kf2 Ke7 Ke3 b5 Ke4 h5 g4 d5+ Kf4 f5 e4 c5 g6 b4 g7 h4 e6 Kf6 e7 d4 e8R c2 Nc3 h3 Bd3 c4 Qf3 h2 Nh3 Na6 Nb5 c3 Na7 Bb7 Be2 Nc7 Bf1 Qe7 Ba6 Nh6 g8R Rh7 Ng5 Rg7 Ne6 Nf7 Ng5 Nh8 Rd1 h1B Bb2 c1Q Qe2 c2 e5+ Kg6 e6 Bhd5 Ke5 f4 Qb5 f3 Ne4 f2 Qc5 f1B Nf2 Kg5 Nc8 Bfg2 Bd3 Kh4 Nd6 Ra3 Nh1 Rb3 Ba3 Rb2 Bh7 Qb1 Kf4 c1N Nf7 Nd3+ Kf5 Qc2 Rab1 Nf2+ Kf4 d3 Kf5 Qd6 e7 Qh2 Qa5 Qc6 Qc5 Rc2 Bc1 Rb2 a3 Bgf3 Rd8 Qe8 Rd6 Qg2 Re6 Ba8 Re4 Bdb7 Ree1 Bfd5 Qc6 Rg6 Qc4 Bg7 Qc5 Bd4 Rg7 Rh6 Rg5 Rg6 Qa5 Rg7 Qc5 Qd8 e8N Qe7 Ng3 Qe3 Nh1 Qe2
3n4/1b1Nk3/Nb1r2B1/1nPP2r1/1Nq2qBb/5b1R/1pPQ1BKp/3R1Bn1 w - - 0 1 illegal: No proof kernel
q5NN/B6n/3bn2R/P6q/rNBnP1P1/1Nk2pRb/B3np1Q/1bK3r1 w - - 0 1 illegal: No possible last move
3R1Qr1/RR1N1n2/4R1q1/PnBP1kP1/1p5K/B1p1r3/B1nbb3/qn3Nb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 c5 Kf2 e5 d4 h5 g4 b5 f6 b3 g5 b2 f7 b4 f5 e4 a5 c4 f6 h3 Kg3 h4+ Kg4 e3 d6 Ke6 d7 e2 Qd3 e1B Qh7 c3 Nd2 b1N Bg2 h2 Ne2 h3 Ng3 Ba6 Qd3 Qe8 d8R Bc5 f8B Qg6 f7 Nc6 Ngf1 Na7 Qf3 Be2 Nb3 Nb5 Ba3 Bd2 Bd6 Nh6+ Kh4 Re8 f8R Bb6 Bc5 Nf7 Rg8 Ba7 Rg7 Rc8 Qa8 Kf5 Bd5 Re3 Qb8 Bb6 Qd6 Ra8 Qf8 Rb8 Bc4 Rc8 d5 Ba7 Rg1 h1N Rg2 Nf2 Rh2 Ng4 Rf2+ Ke4 Rf6 h2 Rb6 Kf5 Rb7 Nf2 Ra2 Nd3 Rc2 Ne1 Rc1 Nc2 Re1 Bf3 Rh7 Rd3 Re6 Re3 Bb6 Be2 Nc5 Ra8 Ba2 Rc8 Nd7 h1Q+ Nh2 Qc1 Bc5 Qb2 Nf1 Qa1 Qe7 Bb8 Qf8 Bh2 Ra6 Ra8 Rh6 Bg1 Raa7 Qg7 Rc6 Qg6 Re6 Nbd4 Rde8 Nb5 Qd6 Rb8 Rh8 Rg8 Qe7 Rg7 Rd8 Rg8 Qd6 Ne5 Qf8+ Nf7
R3NR1B/1Q3b1K/q4r1P/N3Nrp1/nBq2n1r/b1qN2p1/4PP1k/1q3B2 w - - 0 1 illegal: No proof kernel
4NBB1/k3q2q/1Rn1Q2p/pbP1N1PR/1r3R2/1rBn1Bb1/Kr3P2/2r1q3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 e5 g4 d5 c4 Kd7 Kc2 Kc7 Kb3 Kb7 g6 a5 g5 d3 g7 d2 c5 e3 b6 e2 Ra3 e1Q Qg4 d1R Qd7+ Qc7 Ra2 e4 Bd3 e3 Qe6 d4 Be2 h6 Ra4 d3 Ka2 d2 b4 Nf6 g8B Nc6 b5 Nd7 Bb2 Rc1 Nf3 d1R Rf4 Rb8 Ne5 Bd6 Bf3 e2 Na3 Rd4 Bc3 Rb4 Rhh4 Ka8 b7+ Ka7 Rh5 Rh7 Nf7 Nde5 Nc4 Nd3 Nfe5 Bd7 b6+ Ka6 Nf7 Be5 Ncd6 Rh8 Re4 Bg3 Rf4 Be8 Ne5 Qh7 Bf7 Rf8 Bg8 Bd7 Ne8 Rb3 Rg4 Rf4 Rgh4 Rfb4 Rf4 Rd8 b8R Rc8 b7 Ka7 Ng7 Rf8 Ne8 Rbb1 Rc4 R4b3 Rb4 Rf4 Rb6 Rfb4 Rd8 Bc8 Rd4 Bd7 Re4 Nb8 Rf4 Bb5 Qd5 Nc6 b8B+ Ka8 Bd6 Ka7 Bd4 Qg1 Bf8 e1Q Bc3 Qee4 Rf6 Qge1 Qe6 Qe7 Rf7 Qh7 Rf4 R1b2+
1Kn1N3/7N/bk2Bqp1/3Q3P/2r1nNBR/2nRP2p/n2b1Pq1/1r1r1NB1 w - - 0 1 illegal: No proof kernel
4R1qR/7q/Nbq1bpn1/PN1p2r1/1BrPNP2/1Q2n3/B2K1qn1/2B1N2k w - - 0 1 legal: proof: e4 d5 c4 h5 g4 a6 b4 Qd6 b5 axb5 gxh5 bxc4 e5 c3 exd6 Kd8 Ba6 Kd7 Bf1 Ke8 f4 Kd7 a4 Ke6 d4 Kf5 h4 Ke4 a5 c5 h6 e5 h7 g5 h5 b5 d7 f6 d8B b4 h6 g4 Qa4 g3 Ra3 g2 Bb6 b3 Kd1 c2+ Ke2 c4 Ra2 c3 Qb5 b2 Qe8 Na6 Qa4 Ne7 Bc7 Nb4 Ke1 Ng6 Qd7 Bc5 Rh3 Rg8 h8N Bb6 Qa4 Be6 h7 Rac8 Bd6 Rc4 Nf3 g1Q Na3 b1Q Nf7 Qg4 h8N Qb2 Bd2 c1Q+ Qd1 c2 Nb5 Rg7 Nd8 Qcb1 Nb7 c1Q Nf7 Nc2+ Ke2 Ne3 Bb4 Qg5 Ne1 Qcc2 Rh8 Qa4 Na7 Qc6 Nb5 Rg8 Qb3 Q1c2 Nd3 Qg2+ Ke1 Kf3 Bc1 e4 Nfd6 Qg4 Be2+ Kg2 Nbc5 Rg7 Re8 Kh1 Na6 Qg5 Bd1 Qh2 Bc2 Qh7 Bb1 Qbg2 Re2 Qf2+ Kd2 Ne5 Nf5 Nf1+ Kd1 e3 Rd8 Bc8 Rh8 Qgg2 Nc3 Rg3 Re1 e2+ Kc2 Rg7 Nd6 Qg6 Ba2 Qge8 Nb5 Rg5 Rd1 Ng6 Rd2 e1N+ Kd1 Nh2 Re2 Ng2 Ne1 Qeg8 Re8 Nf1 Ne4 Bh3 Bba3 Be6 Bb4 Qfh4 Ke2 Nfe3 Kd2 Qf2+
N3K1n1/3B4/4Pqrp/1bB1PBbN/pq1nPR2/k3r1n1/B2NR3/4nQq1 w - - 0 1 illegal: No proof kernel
4B2n/2Rr3n/rq1PRBBN/P2nQ2b/KP2pB2/2N1N1b1/3q3p/1bk2b2 w - - 0 1 illegal: No proof kernel
r1rBK1N1/5R2/1rNpN3/2p3P1/1n2qqR1/1b1Q3N/2r1PPBb/2k2nbR w - - 0 1 illegal: No proof kernel
5q2/rbr3K1/1NP1kPB1/1Pq1NrBQ/2p1N3/1B1b2R1/p3r1R1/2Nnn1b1 w - - 0 1 illegal: No possible last move
1B4RR/2R1N3/BPn3Qq/Br1K2n1/6pk/PpqP1R2/2nbb3/2Nn2rb w - - 0 1 illegal: No proof kernel
6R1/3qB3/nPB1Nnq1/PR1P1R2/q2b1r2/3rpN2/Bp2q2K/n1QbBk2 w - - 0 1 illegal: No possible last move, all moves rejected
n2b1R1n/1R2Nq2/1PP5/1b1B3b/1rpR3Q/b1B1r1Pq/Rp1N2q1/3k2KN w - - 0 1 illegal: No proof kernel
k2qQ3/5B1q/rp2R3/p1P1N2K/4b1RB/1qn4P/1P3b1R/RBbbNn1r w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 d4 exf4 a4 cxd4 a5 b6 a6 Qg5 Kf2 Qd5 Ke1 Qb7 axb7 Kd8 Bh3 Ke7 Bf1 Ke8 Kf2 Kd8 Kf3 Kc7 Kg4 d5+ Kg5 a5 c4 f5 e4 f3 e5 f4 h6 f2 e6 f3 c5 d3 h7 d2 e7 d4 e8B d3 Qa4 d1B Qe4 d2 Qe6 Na6 b8R Ne7 Qb3 Nb4 Ne2 Na2 Qa4 Bf5 Bf7 Nc3 Nf4 Ned5 Be6 Be4 Rc8+ Kb7 Qc4 Ne3 Bg2 f1Q Nd3 f2 Bf7 Ra6 Ne1 Qd3 Qb5 f1Q Qe8 Qf3 Rg1 Nf1 Na3 g6 Kh4 Bh6 Rc6 Qfe3 Bf3 g5+ Kh5 g4 Nc4 g3 Ne5 g2 Re6 Qed4 Bg4 Qd8 Be2 Ka8 Bf3 Rg8 h8R Rg3 Bg4 Rf3 Bf5 Rh3+ Kg6 Be3 Rh4 Qb1 Rh1 g1B Rg4 Bc6 Be4 Bgf2 Bc2 Rh8 Be4 Bh6 Kh5 Qd3 Bf5 Qd7 Bb1 Be4 Bg6 Qh7 h3 Rf8 Rh2 Rf3 Rd6 Rg3 Rc6 Rg1 Bf7 Rh1 Re6 Bb3 Nd7 d1Q Bg5 Qd3 Ne5 Bd1 Bh4 Qb5 Ng2 Qb3 Ne1 Bc1+
qr3Q1n/N5Kq/PBp1b1B1/2q5/qN1Rr2B/4P1bP/pnb2R2/N4Nk1 w - - 0 1 illegal: No proof kernel
8/5b1k/pR2P1qN/n1rRQKB1/1N1b1b2/4Nn2/4PPpb/2qrrBNR w - - 0 1 illegal: No proof kernel
1n1nN1b1/q3k2P/R4Npr/R5q1/1bBQ1P1R/r1B1n1K1/1p1P3N/2N2r1r w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 c5 Kf2 b5 h4 e5 a4 e4 h5 e3+ Kg3 e2 a5 e1N f6 b3 d6 g6 a6 c4 a7 b2 h6 b4 Ra5 c3 Rh4 c2 Nf3 b3 Nc3 b1R Na2 Be6 Nh2 Ng2 Bb2 c1R Bc3 b2 Bc4 Ne7 Qg1 Bg8 Qd4 Rf1 Nc1 Nec6 f7+ Kd7 Ra6 Qg5 Ra5 Kd8 d7 Bb4 f8N Ne3 Nh7 Ke7 d8N Ra1 Nf7 Nd8 Nd6 Rh1 Kf2 g3+ Kf3 g2 Nf6 g1Q Nde8 Ra3 Ra6 Nd7 Ra5 Rc8 a8R Nb8 Rf5 Rc5 Ra6 Rca5 Rb5 Ra1 Rf5 R5a3 Rd5 Qd1+ Kf2 Qa4 Rda5 Qd7 Kf3 Qa7 Kf2 Qf5 Kg3 Rh7 Na2 Raf1 Nc1 Qg5+ Kh3 Qd5 Kg3 Rf7 Nfg4 Rf5 h7 Rh5 Ngf6 Rh6 Nc7 Qf5 Nce8 Qg5+
Kb1nk3/RB2N1Rp/2r1P3/p2r1P1N/3nR3/P1qR4/3r1QqB/bNr3n1 w - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 h3 exd4 Nc3 g5 Ba3 g3 Nf3 g4 Rc1 g2 Ng1 b6 Ra1 g3 Nb1 Bb7 Bb2 Bf3 Bc1 Bg4 hxg4 Be7 Kd2 Bd6 Ke1 Bf8 Kd2 d5 Kd3 b5 e4 a6 f4 b4 c4 b3 g5 b2 g6 Qc8 e5 Qe6 f5 Nh6 g7 Qc6 g8R Nd7 e6 Nb8 Bf4 Nf7 Qe1 Nd8 Ne2 g1B Rg7 g2 Rh4 Bh2 Ng3 g1N Bg2 a5 a3 Rg8 Qf2 Ra6 Nh5 Qc7 Bg3 Nbc6 Re4 Qc8 Ra7 Bg7 Bh1 Bh8 Be5 Rg2 Rg7 Na7 c6 Nb5 c7 Rc6 c5 Qb7 c8N Bf4 Nc3 b1R Ne7 Rc1 Nb1 Qa8 Ra2 Bh2 Rd2 Bf4 Bf6 Bb8 Be5 Qb7 Bh2 Qc7 Rd1 Qe5 Kd2 d3 Ke3 d2 Kd3 Nd4 Ke3 Rd6 c6 Qf6 c7 Rdc6 c8R Qg6 Rf1 d1Q Rc7 Qc2 Rd1 Qc3+ Rd3 Qg4 Ra7 Qh3+ Qg3 Rd2 Bf3 Qg2 Qf2 Nde2 Rc4 d4+ Ke4 Bc7 Kd5 Bb8 Re3 d3 Rce4 Qg3 Bh1 Qg2 Reg3 Nd4 Rf3 Re2 Rh3 d2 Re3 d1R Rd3 Rc7 Kd6 Red2 Kd5 Kf8 Kd6 Rc6+ Kd7 Bc7 Kc8 Bb8+ Rc7 Nc2 Re2 Qd4 Rg4 Rd6 Rg5 Qf3 Re5 Re2 Rd2 Ke8 Ra7 Qb4 Re3 Ba1 Rg7 Qfg4 Ba8 Qg2 Re4 Rb6 Rdd7 Rd3 Bc6 Red2 Bd5 Qc3+ Bc6 Bc7 Bb7 Rc6 Rdd4 Bb6+ Kb8 Bc7+ Ka8 Bb8 Ra4 Rd7 Rad4 Rd5 Rd3 Nd4
2b1k2b/Kr1nB2p/n2P2R1/QP1B2r1/N2P1r1B/1n5q/1Nn2p2/2q2NRN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 e4 a5 b4 f5 g4 c4 b6 c3 g5 c2 b5 f3 Ke3 f2 Kd4 h3 e5 a4 d6 a3 Kc5 a2 g6 h2 g7 f4 b7 f3 Qe1 Nc6 b8B Ra4 Bc4 f1N Ne2 f2 Nec3 Ne3 Bd5 Bh3 Ba3 c1N Rg1 h1R Rg6 Qe7 Kb6 Rb4 Na4 Nh6 g8N Qg5 Ne7 Bc8 Nf5 Rh5 Ng3 Qh4 Nh1 Nc2 d3 Rc4 Qa5 Nb3 Nd2 Qh3 Rag1 a1Q Nf1 N6b4 Ka7 Na6 Bc7 Rg5 Bd8 Bg7 Bb4 Rh5 Bh4 Qc1 d4 Ng4 Nb2 Bf6 e6 Kf8 Bd2 Ne5 Bdg5 Bg7 Bd8 Rg5 Bf6 Ke8 Bd8 Rf8 Bf6 Bh8 e7 Kd7 e8N Rc6 Ng7 Rb6 Be7 Rf4 Ne6 Ke8 Nc5 Nd7 Nca4 Rb7+
3b1Kn1/k1NbBBP1/1q4NQ/3q4/3bR3/q2N2PP/rpr2BRp/nqN5 w - - 0 1 illegal: No proof kernel
b1nR4/4P1b1/2pR2qQ/B1N2n1K/2PBn1R1/Bq4PR/p1r1k2N/4r1rr w - - 0 1 legal: proof: d4 h5 f4 g5 a4 gxf4 g3 e5 dxe5 b5 axb5 h4 Bg2 h3 Qd2 hxg2 Qd4 Qf6 Qd1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 d5 h4 a5 c4 d4 b4 a4 e4 f3 h5 c6 h6 f5+ Kh5 f4 b6 a3 b5 f2 h7 f1R b7 d3 b6 f3 Nd2 f2 Ngf3 g1R Nh2 Na6 b8B Bg7 b7 Ne7 Nb3 d2 Bc7 Qg8 b8R Bb7 Ba5 Nc5 Rd8 Re1 Qe2 f1N Qe3 a2 Ba3 Rb8 Rd1 Nc8 Qg5 Ne3 Qh6+ Bf6 Rd4 Nf5 Rd8 Ba8 Rd4 Ke7 e6 Bg7 e5 Rb5 Rd6 Ne4 Nc5 Rb2 Rd4 Rc2 Rd6 Ke8 e7 Kf7 Rg6 Qe8 Rg4 Qg8 Nf1 Qe8 Rh3 Qg8 Nh2 Qe8 Rb1 d1Q Rb5 Qg8 e8R Qb1 Rb8 Qb3 Re6 Qe8 Reg6 Ke7 e6 Kd6 e7+ Ke5 Bd8 Kd4 Ba5 Rf8 h8B Rf7 Na6 Kd3 Nc5+ Ke2 Rd6 Qg8 Rd8 Rf6 Rb7 Rd6 Rbd7 Rdd1 Rd3 Rh1 R3d6 Reg1 Rg5 Rde1 Rg4 Bf8 Bd4 Bg7 Ne6 Qh7 Nc5 Qg6+
4kq1Q/1nB1P3/1p1P2rq/NK4p1/8/RPrb2Nr/1RnBq1b1/rBN4N w - - 0 1 illegal: No extended proof kernel
nq6/N2BP1Pb/Pr2rR2/Kp1pk2b/2BN2B1/1nB1b3/1q3qRq/1Q2R3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 a4 Ke6 g4 d5 c4 h5 e4 f5 c5 f4 a5 d3 g6 b3 Kc3 b2 Kb4 f3 g7 h4 g5 f2 a6 d2 g6 h3 Nf3 h2 Bc4 f1Q Nc3 b1Q+ Bb2 Ne7 g8R Rh6 c6 Qf2 c7 Nd7 Ka5 Nf5 Nb5 Rb8 Na7 b5 Re1 h1Q Bc3 Qb2 Qb1 d1B g7 Bc2 Ra2 Bc5 Rf8 Be3 Rf7 Qhh2 Rf6+ Ke7 e6 Kd6 Nd4 Rb6 e7+ Ke5 e8B Bd1 Bd3 Bh5 Bf1 Re6 Bc4 Nb6 Bc6 Bd7 c8B Bde8 B6d7 Beg6 Bb7 Qb8 Bbc8 Qbc2 Rb2 Na8 Ra2 Bh7 Rb2 Kf4 e5 Qb3 Rc2 Qb2 Rce2 Rb6 e6 Ke5 e7 Rg6 Rf8 Rge6 Rf6 Ng3 Rd2 Ne2 Rc2 Nc1 Rce2 Rec6 Bg4 Re6 Bd7 Qf3 Rg2 Qfg3 Rf4 Qgf2 Rf6 Nb3+
1N1q1b1K/NnP5/B1N3R1/p3P1nb/3r2R1/4P3/1Qnp1B1k/nb1Nq1rB w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 b4 f5+ Kf4 a5 c4 d5 g4 d3 c5 d2 g5 h3 b6 h2 g6 h4 c6 d4 g7 d3 c7 h3 b7 Nf6 Kg5 f4 Kg6 f3 b5 f2 b6 Rg8 Ra3 Nh7 Ra2 Nd7 b8N Nc5 b7 Ng5 Bg2 f1N Nc6 Ne3 b8N Nb7 Qc2 d1N Qb2 Nc2 Be3 d2 Bf2 Nde3 Nf3 Na1 Na7 Nec2 Rg1 h1B e3 h2 Ra4 Bd7 Nc3 Be8+ Kh6 Kf5 Nd1 Bh5 Nd4+ Kg4 Bf1+ Bg2 Ba6 Kh3 Ndc6 h1Q Rg4 Be4 R1g2 Qe1 Rg1 Nh7 Rg6 Ng5 Rg4 Nf7+ Kh7 Kh2 Qd4 Bd3 Qb2 Ng5+ Kh6 Be7 Ra4 Na3 Rf6 Qe8 Nd7 Rd8 Ndb8 Ne4 Kh7 Bb1 Rb4 Rd6 Rh6 Qd8 Rc4 Re8 g8B N3c2 Bd5 Rg8 Re6 Rg2 Rg6 Bf8 Kh8 Ng5 Rg4 Rg1 Bh1 Rd4
5Nq1/k1PQnN2/NqpN1pR1/r4Kn1/2b1B2b/1B2q2r/3RPBP1/5b1q w - - 0 1 illegal: No proof kernel forced: bxLB
3qRNr1/2PPn1qr/n2Rb1pQ/KB1N3p/4P2N/q1B3Bq/6nb/1k3B2 w - - 0 1 illegal: No proof kernel
1n1nkb2/R1pr4/1Qq1Bp2/PP1Br2n/N1b2n2/3b3B/2N2RP1/1qB1NK2 w - - 0 1 illegal: No proof kernel
1nq1r1KB/2pq1p2/3Bn1Q1/2bb1B2/n3P2P/RrB1N1n1/3NP2q/2k2NR1 w - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 h5 f3 b5 axb5 hxg4 Ra6 e5 Ra1 e4 fxe4 Bd7 Qa4 Be6 Qd1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 a5 h4 g5 b4 a4 d3 c3 b6 a3 b5 a2 b7 g3 b6 g2 Nd2 c2 Ngf3 g1N Nh2 g4 Bh3 g3 Be6 g2 Nhf1 Nf6 Bf5 Nh3 Rg1 Nf4 Bb2 c1Q Bc3 Ra3 Qa4 Qd1 Qa6 Kc6+ Ke5 Rb3 d4 N4h5 d5+ Kc5 d6 Be6 d7 Qc8 d8B Nh7 Bf6 Ng3 Bg7 Rg8 Bf6 Bd5 Bh8 Ng5 Kf6 Ne6 Bb4+ Kd4 Bd6 Nc6 b8B Kc3 b7 Kc2 Ba7 Nb8 Bd4 Be7+ Ke5 Re8 Bc3 Nf8 Bc5 Nh1 Qg6 Ng3 B5b4 Bc5+ Kf6 Rd8 Kg7 Re8 Rh1 g1Q Kg8 Qh2 Rg1 Bb6 Bd6 Bc5 Rb1 a1N Rb2+ Kc1 Ra2 Rb2 Ra7 Nb3 Ra3 Nc6 b8N Rb1 Na6 Nb8 Nf3 Qd3 Nb4 Qb5 N3d2 Qbd7 Ne3+ Nf1 Bce5 Bb6 Nbc2 Nc5 Ng4 Rb3 Bd4 Na4 Bc3 Qf4 Nh2 Bc5 Ne3 Qf2 Nd1 Ng3 Nhf1 Qh2 Nde3 Ne6+
nNb2R1R/1P1qN3/2BbR3/Qr1Pr3/r1qk4/Pn2R2p/1pKN4/1n2Br2 w - - 0 1 illegal: No proof kernel
2N4B/1PBrqQr1/Nb1B1P1q/1r2p2n/4NnRB/r3PKp1/1k6/R2b2q1 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Bg2 h3 Qd1 hxg2 f4 Kf7 Kf2 Kf6 b4 a5 h4 g5 d4 c5 d6 c4 h5 c3 f5 c2 b6 g3+ Kf3 a4 d7 a3 b5 a2 d5 Ke5 d6 Ra3+ Nc3 Nc6 b7 Nf6 b8N Rh7 b6 Nb4 b7 Nbd5 h6 Nh5 Rh4 Ndf4 Nh3 g1R Rg4 g2 Qf1 Kd4 Na6 e5 Nf2 Qe7 d8B Rg7 Bb2 c1Q h7 Bd7 h8B Ba4 d7 Bd1 Ba5 Rh1 d8B g1Q Bac7 Kc4 Bb6 Kb3 Nb5 Qc6+ Ne4 Qh6 Na7 Rh2 Rc1 a1R Nc8 Rb1 Bbc7 Ka2+ Bc3 Rb5 Ra1+ Kb3 Bb4 Kb2+ Nc3 Rg2 Bbd6 Rh7 Ke4 Rg7 e3 Rd2 Qc4 Rd3 Qf7 Rd2 Rg3 g4 Rg2 Qd7 Bh4 Be7 f6 Bd8 Rh2 g3 Rf2 Bb3 Kf3 Qe7 Ne4 Bc2 Bb8 Bb6 Bbc7 Rdd5 Rff1 Ne2 Rfc1 Bd1 Rc4 Rdd3 Nf2 Rd2 Rg4 Rdd5 Ne4 Rd2 Bc5 Rd7 B5d6 Nef4+
3qnn2/1Pb1q2b/B1Rp2r1/r2K1R2/4NbB1/P1b2Np1/6PQ/B1k1B1rR w - - 0 1 illegal: No proof kernel
1rRNq3/rP1pq3/kn4qq/4B3/b1r1n1Nb/RP1p3P/R5R1/1N1K1Q1B w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 f4 g5 c4 a5 h3 e5 f6 a4 f5 d3 c5 a3 c6 g3 b6 g4 c7 a2 b3 g2 Na3 e4 Nf3 g1Q Nd4 g3 Kd2 g2 Rb1 a1Q Rb2 e3+ Ke1 e2 Ne6 Ne7 Bg5 Ba6 b7 Nd5 Kd2 Bb5 Bf4 Ra7 Rh2 Be7 Ra2 Na6 Bg3 Qad4 Nb1 Qh4 Ra3 Qc5 Be5 g1Q Bg2 e1R Bh1 Re4 Qf1 Ba4 Kd1 Qg6 Rg2 Rc4 Rga2 Qa8 Rg2 Bd8 f7+ Ke7 f8R Nb6 Rf6 Qhh6 Rga2 Qb4 Rf8 Nc5 Rg8 Qf6 Rg6 Ne4 Rgg2 Qfg6 f6+ Kf7 Nf4 Kf8 f7 Bh4 Nh5 Ke7 f8N Qc8 Bb2 Kd6 Be5+ Kc6 Nf6 Kb5 Ng4 Qe7 Ne6 Qcd8 c8R Ka6 Rc6 Qdf8 Rc7 Qff7 Rc5 Rha8 Nd8 Qfe8 Rc8 Rb8
n2rBR1R/qPp4Q/2P2r2/2P1B1BB/1b2q3/n1p1Nr2/6b1/KqRq1Nk1 w - - 0 1 illegal: No proof kernel
1n4q1/bp1q3r/bPRR1NB1/1R2QN2/2nqN3/P4RrP/K5p1/B1q3kb w - - 0 1 legal: proof: e4 h5 c4 d5 cxd5 f5 exf5 Rh7 Ba6 Rh6 Bf1 Rh8 g4 hxg4 b4 a5 b5 Nh6 Qb3 Ng8 Qb4 axb4 Kd1 Kd7 Kc2 Kd6 Kb2 Ke5 d4+ Ke4 f4 c5 d6 g5 a3 e5 h3 c4 d5 g3 f6 b3 d7 g2 d6 g4 f5 g3 f7 Nh6 f6 Nf5 Rh2 Ne3 Ra2 c3+ Ka1 c2 Ne2 Kf3 Bb2 Kf2 Nd2 e4 Nd4 Rh7 Nf5 Kg1 Bd3 c1Q+ Bb1 Qb6 d8Q Qd4 d7 Bc5 f8N Nc4 f7 e3 Qf6 e2 d8R e1Q Qe5 Be6 Nd7 Qed1 f8R Bd5 Ne4 Ba7 b6 Qg4 Bc3 Qg7 Rc2 b2+ Ka2 Qf7 Ndf6 Qd7 Rc8 Bc6 Re2 Bb5 Rc6 Ba6 Bc2 b1B+ Kb3 Qde3 Rd2 Qed4 Bd3 Bc2+ Ka2 Bd1 Ba1 Bf3 Re6 Nc6 Rf7 Rg8 Rb2 Rg5 Rb5 Nb8 Rc6 Qc5 Nd2 Kf2 Rh1 g1Q Nd6 Qe7 Nd7 Qg2 Rd1 Qg1 Bf5 Bh1 N2e4+ Kg2 Rf6 Rg6 Rf1 Qcd4 Rf3 Rg8 Re6 Qd8 Ndf6 Qd7 Bg4 Kh2 Bh5 Rg4 Nf5 Qg2+ Nf2 Kg1 Red6 Rg8 Re3 Qgd5 Rf3 g2 N2e4 Rg3 Bg6 Qg8
2R1Q1rq/P2bNn2/B1B1nbK1/1r1Bb2N/1kP2b2/Rpp2nP1/1N1B2q1/8 w - - 0 1 illegal: No proof kernel
3Bnrn1/P1P1bN2/3rp1bB/rp1B3q/6q1/2P2R2/QNq1k3/1NRqN1K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 f4 Kf7 Kf2 Kf6 g4 b5 a4 d5 c6 h5 c7 h3 g5+ Kf7 f6 Ke6 c3 Kf5 g6 Ke4 f7 b3 g7 h2 a5 b2 f5 h4 f6 d4 a6 d3 Qb3 h3 Qa2 d2 Bg2+ Kd3 Nf3 d1Q Bh6 Bf5 Rf1 h1Q a7 e6 Bg5 Be7 f8B h2 f7 Nd7 Bh6 Bg6 Bg5 Nh6 g8N Nf6 Bg7 Rb8 f8N Rb6 Nd7 Rd6 Nb6 Ne8 Na4 Qa8 Bh4 Qe4 Bf8 Qg4 Bg7 Nf5 Nh6 Rf8 Nf7 Nh6 Bg5 Ng8 B7h6 Qb3 Rc1 Qhd1 Bh4 h1Q Ne1+ Kc4 Bf6 Qhh5 Kg1 Qc2 Nf3 Kd3 Ne1+ Ke2 Bfg5 Qgb4 Bd5 Qf4 Rd1 Qff5 Rd3 Qd1 Rf3 Qbc2 Nd2 Qf4 Rc1 b1R Nb2 Ra1 Nb1 Qff5 Qb3 Ra5 Qa2 Bf6 Bf4 Bh4 Bfg5 Qfe4 Bd8 Be7 Bc6 Qef5 Bd5 Qfg4+
3n1bnq/p1Q3n1/K2Rq1R1/1PPprBN1/q1q1B2P/8/2br3B/2NBNk2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 e4+ Kg6 b4 Kh5 h4 f5 e6 g5 e5 d3 e7 d6 b6 d2 Kb5 f4 c4 f3 b7 f2 c5 Nc6 b8N Bf5 e6 Bc2 Bd3 f1Q Nf3 g3 e8B+ Kg4 e7 g2 Ra6 Kg3 Bd7 Kf2 e8B g1Q Bf5 g4 Nc3 g3 Na2 g2 Nd7 Rh5 Nf6 d5 Ne1 Rb8+ Rb6 Qd7 Ka6 Nd8 Rd6 Qe6 Qg4 d1N Ba4 Ne3 Nh7 Qh2 Qc4 g1Q Ng5 Qhe5 Bde4 Qg4 Rg1 Qh8 Bd2 Qd1 Nc1 Qd3 Qb5 Qc4 Bc3 Qg4 Be5 Rb7 Rg2+ Kf1 Bh2 Rg7 Ngf3 Qf4 Rg6 Rb7 Ng5 Rf7 Bg4 Nf5 Bb3 Ng7 Bgf5 Bd3 Bd1 Bc2 Ka5 Qg4 Qc6 Qf4 b5 Re7 Nf7 Rg5 Qc8 Rg2 Ka6 Rd2 Qc7 Qf6 Nh6 Re5 Nf7 Qe6 Ng5 Qg3 Nh3 Qgb3 Ng5 Qba4+
R7/pR1r3p/BRN1NP1n/Q2NK1Pr/qbr1n2n/4R2q/P5r1/bk2B3 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 d4 e5+ Kf5 b5 f4 e3 c3 e2 c6 Kc4 d5 b4 c7 e4 c8N b3 g5 b2 d6 e3 d7 Bg7 Rh5 Qe8 d8R Na6 Rd3 e1Q Ne7 e2 Bd2 Rc8 Nh3 g1N Re3 g2 Rh6 Nc5 Rb6 Qh4 Nc6 Ne4 Be1 Nf3 Qd8 g1R Rb7 Be5 Qa5 Rg2 Rb6 Qeh5 Ke6 Rc7 f5 Nh6 f6 Rd8 Nf4 Rdd7 Rb7 Ng4 Kf5 Qh3 Ne6 Qe8 Rb5 Bd4 Rb6 Nh6+ Kf4 Nh4 Rb7 Bb6 Ke5 Bc5 Rg3 Be3 Rb6 Kd3 c4 Kc2 c5 Bg1 Nc3 b1R Nd5 Rb4 Rb1 Bd4+ Kf4 Rc4 Re3 Ba1 Rb7 Rd4 R1b6 Kc1 Ke5 Rb4+ Nd4 Kb1 c6 Rc8 c7 Rb2 Bg3 e1B Ba6 Bb4 Be1 Rh2 Nc6 Rbg2+ Kf4 Rcd8 c8R Rh1 Ra8 Rc8 Ncd4 Rc4 Ke5 Rdc7 Rg3 Qa4 Re3 Rd7 Rc3 Qf3 Ng7 N4f5 Nge6 Rh5 Rd3 Nh4 Re3 Rb2 Nc6 Qh3 Rf3 Rf2+ Rc3 Rb2 Re3 Rg2+
1rN2r2/p1P2Rn1/2nN2r1/Kb5p/6QB/R3PnqR/qPn2bk1/R1NB4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Kd6 g4 Ke5 c5 Ke4 c6 f5 b6 d5 g6 h5 c7 d3 Kc3 d2 b7 f3 g5 f4 g7 f2 g6 f3 Ra3 d4+ Kb3 d3 Ka4 Qg5 Qc2 d1Q Rc3 Bc5 Na3 Nc6 b8R Rh6 Nc4 Nf6 g8R Ba6 g7 Rg6 Rgf8 Ne8 g8N Ng7 Rbb3 Rb8 Ne7 Qe1 Ra3 Qd5 Bg2 f1N Qd1 Nd2 Nc8 Qe6 Bf1 f2 N4d6+ Ke3 Bh3 f1R Bg4 Qa2 Bf3 Kf2 Rf4 Ne7 Ka5 Bb5 Bg4+ Kg2 Rf5 Ne4 Bg5 Nd2 Bh4 Rf3 Rc1 Qg3 Ra1 Bf2 Rh3 Rf4 Rd5 Rf7 Rf5 Rf8 Qa4 Ne6 Rf7 Ng7 Be6 Nf3 Bb3 Qe5 Qg4+ Qg3 Ra4 d2 e3 d1N Bc2 Nc3 Bd1 Ne2 Ra3 Ned4 Ne2 Nc2 Nc1 Nc6#
bNNbq3/ppBRB1RP/nn3P2/k7/1qr2N2/b1NP1Q2/4n3/b2K1B1r w - - 0 1 illegal: Other
5r1b/3b1rR1/4B1bP/k2pP2N/1n1NBRqp/Kr2n1b1/P3QB1B/r2N4 w - - 0 1 illegal: No proof kernel
1kr2n2/3Kb1pN/P1r1p1br/N4Rb1/2P2q1R/QNb1B1n1/R6P/1B2rR2 w - - 0 1 illegal: No possible last move
BBQB2bk/1P2P1q1/R1nn1p2/3bn1R1/1bP3r1/1pNn1r2/5NK1/bBN5 w - - 0 1 illegal: No proof kernel
qnnB2n1/P1r2P2/Nkb5/2pR1pPK/b2b1rB1/5Nb1/B1N1Q2N/1n1R4 w - - 0 1 illegal: No proof kernel
K1nr4/pqp2r2/1bn4k/3NP1R1/Nb2P3/nBR2N1P/Q1n2R1R/4B1bb w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 f5 Ke3 Kf7 d4 Kg6 b4 c3 h3 c2 b6 g3 b7 g2 b5 f4+ Ke4 f3 d5 f2 d6 Bf5+ Kd5 Qd7 e4 Rh7 b6 Qc8 d7 Bb4 d8N Bg4 Rh2 Nc6 b8R Bf3 Qe2 Qa6 Bd2 c1N b7 Nd3 Ra2 Nb2 Ne6 Nc4 Nc5 Na3 Be1 Kh6 Na4 g5 Nbc3 g4 Rd8 g3 b8R Rf7 Rd7 Ba5 Rb3 Rd8 Qb2 Bb4 Bc4 f1N Qa1 Rdf8 Rf2 Rd8 Qa2 Ne3+ Ke6 Ra8 Nd5 Nec2 Rc3 Nge7 Bb3 Nc8 Rd8 Rb8 Rg8 Ra8 Rg5 Rb8 Ne2 g1B Nd4 Bh1 Nf3 g2 Rd3 N6e7+ Kd7 Ra8 Rc3 Rb8 Rf1 Bb6 Rf2 g1B Rf1 Nd6 Rff2 Re8 Rd2 Ndc8 Rdf2 Nf5+ Kc6 Rd8 Rc5 Qc4 Kb7 Qa6+ Ka8 Nfd4 Rc4 Nc6 Rc3 Qb7+
n1Nq2rB/1QpB2b1/2PnPP2/1rq4N/NBN5/2q2k1p/RKR3nn/7n w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 h3 g5 Qd2 g3 Qf4 g2 Bd2 g4 Bc1 g3 Qd2 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 Ke7 e4 Kd6 b4 Ke5 f4+ Kd6 c4 h5 Kc2 a5 b6 d3+ Kb2 a4 b7 h4 e5+ Ke6 b5 d5 c5 d2 g5 Kf5 g6 Ke4 f5 d4 b6 d3 g7 h3 e6 Nf6 g8N Ke3 Ne2 g1N Rh2 g2 Ng3 Nf3 Ne7 g1Q Nh5 Ra5 Ra2 Nbd7 b8B Ne4 b7 Nb6 Ba7 Bg7+ Nc3 Rg8 b8N Nd6 Nd7 Na8 Nb6 Rb5+ Qb3 Qg5 Rf2 Nh2 Nec8 Qge7 Re2+ Kf3 Nc4 Qg5 c6 Qg1 Bc5 d1N+ Kb1 a3 Bb2 d2 Bb4 Qb6 Na4+ Ne3 Bf6 d1N Rec2 Nf2 Kc1 Bf8 Bh8 Bg7 f6 Qc5 Bd3 Nh1 Bg6 Qd7 Qb1 Ng2 Be8 Qe7 Bd7 Qd8 Ra1 a2 Kb2 Qf5 Qg1 Qg5 Qa7 Qc5 Qb7 Bh6 Re1 Bg7 Ree2 a1Q+ Kb3 Ng4 Ra2 Qae5 Rec2 Nh2 Ka3 Qe1 Kb2 Qc3+
4B1r1/2n1N3/2q4r/1N1N2n1/1npn1rKp/1kPP2P1/1N3QBR/1nBRb1q1 w - - 0 1 legal: proof: f4 d5 a4 g5 e4 dxe4 h3 b5 axb5 Bg4 hxg4 gxf4 Kf2 Kd7 b4 Kd6 d3 a5 g3 h5 g5 f5 g6 e5 b6 c5 g7 c4 b5 Kc5 b7 Kb4 b6 f3 Rh2 f4 Nd2 a4 Ra3 e3+ Ke1 h4 Nb3 f2+ Ke2 e4 Nd2 Nh6 g8B Qd7 Bh7 Nf5 Rc3 a3 Ndf3 a2 Ng5 a1Q Ne6 Na6 b8N Nc7 b7 Qc6 Bh3 f1R Bg6 Rh6 Nd7 Re8 Qe1 f3+ Kd1 f2 Ke2 Ka4 b8N Bb4 Nd4 Rg8 Be8 Qb1 Nb5 Nd4+ Kd1 Ba5 Nf6 e2+ Kd2 Kb4 Ke3 Ka4 Kf4 e3 Qd2 e1N Ne2 Nef3 Nd5 Ng5 Kg4 Qa1 Bg2 Qb1 Nef4 e2 Ne3 e1N Nd1 Bb4 Rb3 Ba5 Qe3 Bd2 c3 Nec2 Qf3 Be1 Nd5 Nb4 Rb2 Qa1 Rd2 Kb3 Qe2 Rg1 Nb2 f1N Rd1 Nd2 Qf3 Rf1 Qf7 Nb1 Qf2 Qc5 Nc6 Qa8 Ne5 Qac6 Ng6 Nbc2 Qf4 Ndf3 Bd7 Nb4 Nge7 Qg1 Be8 Nd4 Qd2 Rff8 Qf2 Rf4+
2q4k/1Rn2Qqr/1Rr3bN/1pB3Pr/1p2Nq2/1P2N3/P1N2brr/RB1K4 w - - 0 1 illegal: No proof kernel
2q2r2/nn2Pk1N/b1N5/2B1n3/p1RKQ3/P1nnq1r1/NPRpR1N1/3B3r w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Bh6 Be3 fxg4 Bc1 g3 Bf4 g4 Bc1 Bg5 hxg5 Bb7 Qb3 Ba6 Qd1 Bc8 Kd2 a5 Kc3 d5 f4 c5 e4 h5 g6 d4+ Kd2 d3 Ke3 a4 e6 h4 a3 c3 e5 h3 e7 c2 f5 g2 g7 g3 f6 c4 Qe2 h2 Nf3 g1Q+ Ke4 g2 Bf4 c1N Nc3 d2 Na2 c3 Nh4 c2 Be3 Nd7 Bc5 Nd3 Rc1 Kf7 e8R Ne7 g8N Nc6 Ne7 Na7 Nc6 Rf8 Qf3 Rb8 Be2 Ba6 Bd1 Rb3 Kd5 Qe3 Qe4 g1N Ng2 Nf3 e6+ Kg8 e7 Nfe5 Re1 h1R Re2 Qc8 f7+ Kg7 Ra1 c1N Rb1 Rfh8 f8N Kf7 Nh7 Rf8 Rd8 Nf2 Ra1 Ncd3 Rc1 Rc3 Rc2 Rb3 Bd4 N7c5 Rd6 Nb7 Bc5 Rh6 Rd7 Rh3 Rc7 Rh1 Qg4 Ne4 Qf3+ Qf4 Kd4 Nc3+ Qe4 Rb6 Ncb4 Rg6 Nc6 Rg3 Na5 Kg7 Bb6 Rf5 Rc4 Rf8 Bc5 Kf7 Nc6 Qe3+
2QN4/nn3B1K/2N1qB1q/nn1q2p1/Pp2BRrN/krP3P1/6R1/n2b1B2 w - - 0 1 legal: proof: f4 a5 h4 e5 fxe5 c5 d4 cxd4 b4 axb4 h5 g6 h6 Bg7 hxg7 Ra4 Bh6 Ra3 Bc1 Ra8 Kd2 Ke7 Kd3 b5 Ke4 h5 a4 f5+ Kf4 d5 Kg5 d3 e4 d2 g3 f4 e6 Kd6+ e7 Kc5 e5 f3 e6 f2 Nh3 h4 Bg2 f1Q Ra3 d4 Ra1 d3 Ng1 b3 Bh3 Kb4 Qf3 d1N Ra3 b2 Bf5 d2 Rh2 h3 Ra1 Rh4 Qe4+ Qc4 Qd5 Nc3 Re2 d1N Qd7 h2 Ra3 h1Q Rg2 Nf2 Nf3 Nd3 Nbd2 b1N Nd4 Qf8 e8B Ne7 g8N Nc5 Be4 Nec6 e7 Qe6 Nh6 Na5 Nf7 Ncb7 Nd8 Nbc6 N2f3 Na7 Bb2 Nd2 Bf7 Rb8 e8B Ndb3 Ra2 Rf4 Nh4 Na1 Qc7 Bd7 Qc8 Bc6 Rf2 Bd5 Bc6 Bb3 Bd3 Re4 Rf4 Qf3 Bf1 Qd1 Ndf3 Rc4 Be4 Qdd5+ Ne5 Rd4 Bc1 Rc4 Rb2 Ka3 Be3 Rb4 Bd4 Rc4 Bf5 Rb4 Nec6 Rc4 Bg7 Rd4 Kh6 g5+ Kh7 Rb4 Rf2 Rg4 B5d3 b4 Rf6 Ncb5 Rf4 Ra8 Bf6 Rb8 Qd7 Rc8 Be4 Rc7 Ne5 Rc3 Nec6 Ba2 Qe8 Rb3 c3 Bb1 Rg2 Bc2 Qd7 Bd1 Qc8 Qh6+
1BBb2Q1/2BNkp2/P4b1p/1q3R1R/7q/rB2bq1P/nP1n2NN/Kb4b1 w - - 0 1 illegal: No proof kernel
6B1/2N1KRp1/N3bbBN/p3P1kP/b4qP1/R1qrq3/4Q1rn/3b1NBb w - - 0 1 illegal: No possible last move
1n2n1R1/3B4/2r1N1p1/2PBN1bK/2n1QqN1/1BPR2P1/pr1B1q1n/nk4r1 w - - 0 1 illegal: No possible last move, all moves rejected
1Br1B2K/1BNn1qP1/1n1p1NBp/3q1b1n/3n4/bn1PP2R/1kq2Q2/3R2R1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 b5 c4 e5 b3 exf4 Rh5 b4 Rh1 Ra6 Rh3 Rb6 Rh1 Rb5 cxb5 a4 Ba3 axb3 Bb2 Bb7 Bc1 Bc8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 Kh5 Kd4 g4 f5 a4 c5 a5 h6 Kg6 f3 a6 b2 b6 c4 b7 c3 a7 f4 a8B c2 Na3 b1N Rh3 b3 Nb5+ Kc4 Qe1 f2 Nc7 b2 Nf3 Kb3 Ne5+ f3 e3 Nc3 Bb5 f1Q d3 b1N Ba3 c1N Qf2 Qh1 Bd6 Qd1 Bc6 Be7 Kg7 N1e2 g6 Nd5 g5 Nd4 Ng4 Nb6 Nf6 Qc2 Bb5 Nd2 Rg1 Kb2 Bh2 Nbc6 b8R Ne5 Bb7 N2b3 Ra8 Bd6 Raa1 Bc5 Rad1 Ba3 Qd2 f2 Bg3 f1Q Qf2 Ne7 Bf4 Rf8 Bh2 Ng8 Kh8 Re8 g7 Rf8 g6 Re8 Nh7 Nf6+ g8B Nh5 g7 Qg5 Bf4 Qgg2 Nf6 Qd5 Kh7 Rf8 Bf7 Re8 Bg6 Rg8 Bg5 d6 Bbe8 Bf5 Bh4 Rf8 Bg5 Rf7 Kh8 Rf8+ Ng8 Bb4 Na8 Rf7 Qh2 Be6 Bd8 Ba3 Bc7 Qf6 Bb8 Bf5 Qd2 Rc7 Qf2 Qff7 Nf6 Rc8 Nc7 Ned7
2q5/2R2PQ1/1R1r1KbB/2pr4/NP2r1NN/k1b2b1p/2P1N3/2rBqrBn w - - 0 1 illegal: No possible last move
1NB3R1/5p2/qrRb1P2/k1nPB1p1/qr1qPB1N/r5K1/N2Bq1nQ/3n4 w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 h5 c4 hxg4 Be3 d5 Nd2 d3 Nb1 d4 Bf4 Bb7 Bc1 Bd5 cxd5 Qg5 Qc2 Qh4 Qd1 Qd8 f4 Kd7 Kf2 a5 h4 c5 b4 Kc7 e4 Kb6 f5 g5 h5 d2 h6 c4 f6 d3 h7 c3 Ra3 c2 Kg3 a4 Nc3 Nh6 Kf2 Na6 Nf3 Nf5 Bh3 Nh4 Qe2 d1N+ Kg3 d2 Na2 Qc8 Qh2 Ng2 Nh4 Nc5 Rc3 a3 Bb2 Rg8 h8B c1R Bg7 Rb1 Rc1 Be7 Bf8 Bd6+ Be5 Qa6 Be7 Rgb8 Rc2 Ka7 b6+ Kb7 b5 Rb4 Nc1 a2 Bf4 a1Q Na2 Kc8 b7+ Kc7 Bf8 Kb6 Rc3 Ne6 Rc6+ Ka5 b6 Nc5 Be7 Qe2 Bd8 Ra6 Bc7 Rba8 b8N R8a7 b7+ Rab6 Nc1 Qa4 Na2 Qa6 Be5 Nde3 Rc1 d1Q Bf4 Qde2 Rb1 Bf8 Bce5 Nd1 Bd2 Bd6 Nd7 Qf1 b8B Qfe2 Rc1 Rab7 Rc3 Rb3 Rc8 Ra3 Rg8 Rb4 Bc7+ R7b6 Nb8 Nd7 Bc1 Be7 Bef4 Nge3 Bce5 Bd6 Rc6 Nc5 Qf2 Nd3 Kh2 Nc5 Bd2 g3+ Kh1 g2+ Kh2 Ne6 Kg3 g1Q+ Qg2 Nc5 Bc8 Qgf2+ Kh3 Qg1 Qh2 Ng2+ Bfe3 Nd3 B3f4 Qd4 Kg3 Nc5+
1b1n4/2pn1RNP/b2K2R1/1N2B2q/4qP1n/2PBRpQ1/N3n1R1/1rqk1b2 w - - 0 1 illegal: Other
5K1q/2N2BPB/pPR2R2/Qb2k2n/5p2/rrn1NR1n/P3r2q/Br1q1B2 w - - 0 1 illegal: No possible last move
1nK1NbRN/p3nR2/RB2n1pk/2R1br1q/6bQ/P5b1/b1BP2P1/2b2N2 w - - 1 2 legal: proof: e4 d5 c4 f5 h4 fxe4 h5 c6 b4 c5 bxc5 dxc4 h6 b5 Qc2 g6 Qb3 Na6 Qd1 Rb8 Nf3 Rb6 Ng1 Rf6 Be2 Rf7 Bf1 Rg7 hxg7 Bf5 Qb3 Bh3 Qd1 Bc8 Ke2 Kf7 Ke3 e5 f4 h5 c6 b4 c7 c3 f5 b3 f6 c2 Nc3 h4 Qg4 h3 Bb2 c1B Nd5 h2 Nf3 Ne7 g8R Nb8 Bd3 Rh5 Bd4 b2 Bc2 b1B Bb6 Rf5 Qh4 Qd7 Re1 h1N Nh2 Ng3 Nf1 Qb5 a3 Bd7 c8N Nh5 Nc7 Ba2 Ne8 Ng7 Rb1 Qa5 Rb5 Ne6 Rc5 Qb5 Rh8 Qa5 Rh7+ Kg8 Ncd6 Qb5 Rf7 Qa5 Ke2 e3 Kd3 e2 Ke4 Qb5 Rh7 Bc8 Nf7 Qa5 Nh8 Bd7 Rd1 e1B Rf7 Bg3 Re1 Bc8 Re3 Qb5 Rf3 Qe2+ Re3 Qh5 Rb3 Bf4 Rb4 Bg3 Ra4 Bh2 Ra6 Bf4 Kd3 e4+ Kc3 e3 Kb4 e2 Ka5 e1B Kb5 B4h6 Ka5 Bhg7 Kb5 Kh7 Ka5 Nd7 Kb5 Ng8 Kc6 Ne7+ Kd6 Nd4 Kc7 Nb8 Kd8 Kh6 Kc7 Bb7 Kd8 Bf3 Kc7 Bg3+ Kd8 Nd5 Kc8 Ne6 Rd7 Nc3 f7 B7e5 Rb7 Bg4 Rbc7 Bfg7 f8R Nd5 Rg8 Bf8 Rf7 Ne7+
1NrB3B/rp6/R2R1rQ1/p1qP2b1/P2NNB2/r1N3b1/1P2b1bk/2K1r2n w - - 1 2 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 f3 Bg2 f6 Bf1 f5 Qa4+ Nc6 Qb3 h5 Qd1 f4 Bg2 Nce7 Bh3 Nf5 gxf5 Be7 Bg4 hxg4 Nc3 Bd6 Nb1 Bf8 a4 Ke7 e4 Kd6 d4 g5 Kd2 c5 h4 a5 h5 c4 f6 c3+ Kc2 g3 f7 f2 h6 f1R h7 g2 Rh3 g4 Ra3 g3 Qh5 f3 Qg4 f2 Rh4 Qe7 Be3 Nh6 Rh3 Ra7 Ne2 g1R Qf3 g2 Qg4 Nf5 Bf4+ Qe5 Rf3 Ng3 Qg6+ Be6 Rb3 Nh1 Rd3 Bg7 Rb5 Rc8 f8N Bf6 h8B Bh4 Rc5 Bg3 Nd7 Re1 Rc4 Rgf1 Nb8 g1R Rd1 Rg2 Kc1 c2 Nbc3 Rh2 Rb4 Rh6 Rb3 Rg1 Rb4 f1B Rb3 Bg2 Rb6+ Kc7 Rd6 Bg4 Ra6 Qd6 e5 Qc5 Qg5 Rd6 e6 Rgf1 e7 Rf3 Qg6 Rd3 Nb1 Ra3 Nbc3 B4f3 Bh6 Rf6 e8N+ Kd8 Bd2 Ke7 d6+ Ke6 Bf4 Bg4 Qh6 Kf5 d7 Bh5 d8B Kg4 Nd6 Kh3 Nde4 Kh2 Qg6 Bg4 d5 Bh5 Nd4 Bhf3 Kd2 c1B+ Kc2 Bd2 Rc1 Be3 Kb1 Bd1 Rc2 Bg1 Kc1 Bf2 Re2 Bg1 Nd6 Bf2 Re6 Bg1 Ne4 Be3+ Kb1 Bc1 Red6 Be3 Be5 Bh6 Bf4 Bg5 Kc1 Be2+
1R4nr/R4ppn/1NqPQ1RP/r1kn1B2/1N1N2PR/3b3K/3B4/nr4rn w - - 0 1 illegal: No proof kernel
2q3qB/1bkqnp1q/5P2/1Bb1p3/1N6/3Q1Rbb/2NPnPKR/B2NB2r w - - 0 1 illegal: Other
N1N5/P1KbQ1B1/1pq3np/1P1rrB2/4B3/1q1N1q1r/1Rnkr1RP/1B3q2 w - - 1 2 legal: proof: d4 e5 dxe5 a5 g4 f5 b3 fxg4 c3 Bb4 cxb4 a4 Bb2 axb3 Ba3 Nh6 Bc1 Ng8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kb5 Ke4 a4 d5 f4 g5 f5 c5 e6 h6 f6 g3 f7 g2 f8N d4 a5 b2 e7 b6 e8B g4 a6 c4 a7 c3 Bc6+ Ke5 e4 g3 Bd3 c2 Nc3 b1Q Qe1 Ne7 Nh3 g1Q Bb2 c1Q Ne6 g2 Nd5 Bd7 Nec7 Qf8 Nf2 Na6 Ra2 Ng6 Ne7 Kf4 e5 Re8 e6 Qf1 Nc8 g1R e7 Rg3 Rg1 Rh3 Rg2 Qc3 Ba1 Qbb3 Na8 Qf6 Rb2 Qd6 Bc4 d3 Be6 d2+ Qe2 d1R Bf5 Rhg8 Bb1 Qf3 Nd3+ Kf5 Qe1 Rd2 Qh4 Re2 Qe1 Rd8 e8B Qf6 Bf7 Rge8 Bg8 Qfc3 Bh7 Qc1 Qh4 R8e6 Qe7 R6e5+ Nc5+ Kf4 Bf5 Be6 Bce4 Ke3 Kc6 Rdd5 b5 Nb4+ Kc7 Bd7 Bb1 Nc2 Nd3 Kd2 Be4 Nf8 Bhf5 Ng6 Ra2 Re6 Bg7 Ree5 Rb2 Qce1 Nd6 Qh4 Nc8 Qf6 Nc5 Qe6 Nd3 Qc6+
k2n1R1n/3b1B2/1R2R1Pb/nK1pn3/1P4Qp/2BPN1Rr/6b1/bN2B1qq w - - 0 1 legal: proof: b4 a5 h4 b5 f4 c5 a4 e5 axb5 Ra6 h5 Rd6 b6 exf4 h6 Rd4 b5 Rb4 c3 gxh6 cxb4 h5 Rh3 h4 Rh2 Qg5 Rh1 Qd8 e4 d5 Ke2 Kd7 Kd3 f5 g4 h5 g5 a4 b7 Kc7 e5 a3 e6 f3 g6 c4+ Kc3 a2 d3 h3 e7 f2 e8R h2 Re6 f4 Bb2 f3 Re8 Nh6 Re3 Nc6 b8B+ Kb7 b6 Nf7 Bd6 Bh6 Bg3 Bd7 Bh3 f1N Ne2 f2 Rg1 h1Q Be6 Nh2 Nf4 f1B Ng2 Nf3 Be1 N3e5 Qg4 Qg5 Re2 Ka8 Ne3 Ncd8 Kd4 c3 Kc5 c2 Bbc3 c1N Rg3 Bg2 b7+ Kb8 Kb6 Nb3 Ka6 Rh7 Rf2 Nh8 Rf8 Na5 Bf7 Qf5 Kb6 Qf2 Kc5 Ka7 b8R Qfg1 Rb6 Ka8 Na3 Bf5 Kb5 Bc8 Rc1 a1B Nb1 Bf5 Bb2 Bd7+ Rcc6 h4 Be6 Rf7 Bbc3 Rf3 Bf7 Bf1 Rg2 Rh3 Rg3 Be6 Rd6 Bg2 Rdc6 Bc8 Re6 Bd7+
1N1qq1n1/3q1rPn/4k3/2b3K1/N1NprB2/PBq1pR2/1n1PR3/2B1QnB1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 Ke2 Kf7 Kf3 h5 Kf4 d5 g4 e5+ Ke3 c5 f4 h3 g5 d4+ Kf3 b2 f6 h4 Kg4 c4 g6+ Ke6 b6 h2 f7 e4 b7 b3 a3 h3 g7 c3 Qe2 e3 Qd3 c2 Nc3 b1N Nf3 b2 Qe2 Nd7 b8N Ra7 Na4 Bc5 f8B Nc3 Ne5 b1Q Bd6 Nd1 Nc4 Nb2 Qe1 Ndf6+ Kg5 Rh4 Be2 Qa2 Rf1 h1Q Bd1 h2 Rf3 Rf7 Rb1 Qf1 Bc7 h1N f5+ Ke7 Ra1 Re4 Bh2 Qh3 Bg1 Ng3 Rb1 Nf1 Ra1 Nd5 f6+ Ke6 Rb1 Qb3 Ra1 Qb5 Rb1 Re7 f7 Qbe8 f8B Rf7+ Be7 Ndf6 Bd6 Kd5 Bf4 Qhd7 Rf2 Ke6 Re2 Nd3 Bb2 c1Q Bb3 Qc2 Bc1 Qc3 Bc2 Nf2 Rb7 Nd3 Bb3 Nb2 Rb5 Bb4 Rf5 Bc5 Bfh2 Bb6 Rf3 Bc5 Bf4 Nh7+
2r2RK1/2b3Pr/b1p1Bp2/2BBk2b/rq2NN2/r4PRR/1nQ2P2/R1b4q w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 Bb2 gxh4 Bc1 Nc6 Nc3 Ne5 Nb1 Nf3+ exf3 Qd6 Bd3 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 h5 d4 e5 a4 b5 g4 f6 a5 c6 a6 b3 a7 b2 g5 b4 g6 h3 g7 b3 Qe1 h4 Be2 h2 Bd2 h3 Nc3 b1R Bc4 b2 Be3 Qa5 Qc1 Qb4 Qc2 Ne7 Nge2 Nf5 Nf4 Ba6 Rg1 h1Q Rg3 h2 Bb3 Rc8 a8B Rh7 Bb7 Be7 Bc4 Bd8 Ba2 Bc7 Bb3 Rg8 Bc8 Rg1 Ba2 b1B Be6 Rc8 Bc4 Rd1 Ba2 Rd3 Bb3 Ne7 Ba2 Ng6 Kf5 e4 Bc4 Nf8 Bb3 Nd7 Kg6 Nb6 Kf7 Nc4 Ba2 Bd8 Kg8 Nb2 Bc4 Qg2 Ba2 h1R Bb3 R1h4 Bc4 Qh1 Bb3 Kc7 d6+ Kb7 d7 Kc7 d5 Kd6 Ba2 Bc7+ d8R+ Ke5 Bc5 e3 d6 e2 d7 e1B Rf8 Bd2 d8R Bc1 Ne4 Ra3 Rd1 Rg4 Bad5 Ba2 Rdg1 B2c4 Rh3 Bd3 Nd2 Bg6 Rgg3 Be8 Nh5 Rc4 Nf4 Bh5 Ne4 Rcc3 Bb6 Ra4 Bc5 Rca3
1b1B1r2/3qpqR1/N2p2Pb/N5RB/4q2b/kBrP2RB/5PQ1/1n1b1q1K w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 b5 Rh2 g5 hxg5 Nc6 Rh1 Nd4 Ne2 axb4 Ng1 b3 Nc3 b4 Nb1 Nb5 cxb5 Ra6 Rh3 Ra3 Rh1 Ra8 g4 c5 a4 h5 g6 h4 g5 h3 g7 d6 a5 Kd7 g6 c4 d3 b2 b6 Kc6 b7 Kb5 a6 c3 a7 e3 Nf3 h2 Be2 b3 Kf1 Kb4 Kg2 c2 Ra3 Bg4 Ra6 Rc8 a8B Rc3 Ne5 Qd7 Qg1 Nf6 g8B Bh6 Bh7 Ne4 Bd2 c1B Ra5 Rf8 Na3 b1Q Nec4 b2 Bg8 Qa2 Nb5 b1Q Nc7 Qbc2 Rg5 Ka4 Na5 Ka3 b8R Qf7 Bf3 e2 Na6 e1B Bb7 Qd1 Bc8 Qe2 Be3 Bed2 Bb6 Be3 Bd8 Ba7 Rbb5 Bh5 Rg3 Nd2 Rbg5 Bb8 Bg4 Nb1 Bf3 Qf6 Bb3 Qf7 Bg4 Be3 Bh3 Bd4 Bb7 Bg4 Bf3 Bf6 Qf1 Bf5 Bh5 Bg4 Rf5 Bh4 Rg1 Qd2 Kh1 Bd1 Rgg5 Qe2 R1g3 Qfe6 Rf7 Qc4 Rg7 Qf7 Qg1 Qc2 Kg2 h1Q+ Kf1 Qhf3 Qg2 Qe4 Kg1 Qce2 Kh1 Qf1+
k3n3/qnBp1r2/3q2R1/1Bp3PR/4NNRq/1Q1P1PN1/1bn1Rrq1/1n1K4 w - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 axb5 Nh6 c5 Nf7 b6 Nh6 b5 Ng8 c6 Bb7 cxb7 Bg7 Ke2 Bh6 Ke1 Bf8 g4 e5 f3 c5 g5 a5 d3 h5 Be3 a4 Qc1 h3 Kd2 h2 Ne2 h4 Qc2 a3 Bd4 e3+ Ke1 e4 Nd2 h3 Rb1 a2 Rc1 a1Q Nc4 Rh7 Rb1 Qa7 Qc1 Nc6 b8N Rf7 b7 Qdb6 Qb2 Kd8 Kd1 Kc7 Nd6 Nd8 Nc6 Nf6 b8R Bg7 Be5 Nb7 Ncd4 Ne8 Nf4 Bh8 Rg1 h1Q Be2 h2 N4f5 Qg2 Ng3 h1Q Qb3 Qh4 Rb2 Qba6 b6+ Kc6 Ke1 Bf6 Bd1 e2 Kd2 e1N+ Kc1 e3 Nde4 e2 Bc7 Nc2 Rd8 Ned6 Rg8 e1N Rg6 Na3 Re2 Nb1 Bc2 Re8 Kd1 Bb2 Rh1 Re6 Rg1 Ne8 Rh1 Nd8 b7 Q6b6 b8R Nb7 Qc3 Qba6 Bb3 Nc2 Bc4 Q7b6 Qb3 Qaa7 Bd6 Qc7 Bb5+ Kb6 Be5 Qd6 Rg1 Qa1 Rc8 Ka7 Rc6 Ka8 Rc8+ Qb8 Bc7 Qa7 Rd8 Ra6 Rc8 Ra2 Rd8 Nf6 Rh8 Qf8 Rh7 Ne8 Rh5 Qd6 Nf1 Qgh1 Rg4 Qg2 Nfg3 Bd4 Bc4 Nca3 Re3 Rf2 Bb5 Bb2 Re2 Nc2
2R1q3/k1Kqr1pr/1p1BN3/5q2/2R2NN1/1bq1rR2/PPPQBr2/3nR1b1 w - - 0 1 illegal: No possible last move, all moves rejected
2bn1B1n/4b2R/nn1B1BQ1/PP3pNN/2Bb2bp/2knr3/1N5P/1R1r2K1 w - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 b4 g5 f4 gxf4 Be2 Qd7 Bd3 axb4 Bf1 b3 Nc3 b4 Nb1 Qb5 cxb5 Ra3 Qc2 Ra5 Qd1 Ra8 Kf2 Kd7 a4 Kd6 d4 e5 g4 c5 g5 f5 a5 h5 g6 e4 g7 f3 Ne2 c4 Bb2 c3 Ba3 b2 Qa4 e3+ Kg1 f2+ Kg2 h4 Qd1 c2 Ng1 c1N Nh3 e2 Qe1 Nd3 Qc3 e1B Ng1 Nc6 Qc1 Be7 Qg5 Nd8 Nh3 Nh6 g8N Bc3 Nf6 Re8 Qg6 Nhf7 Nd2 b1N Ng5 Nh8 Rg1 Ra7 Be2 f1B+ Kh1 Rd7 Nh5+ Ne6 Rg4 Bh3 Kg1 Bb2 Bf1 Nc3 Rb1 Ne4 Rg3 Nec5 Nc4+ Kc7 Rg2 b3 Rc2 Bc3 Nb2 Nd8 Rcc1 Na6 d6+ Kb7 d5 Bg4 Re1 Bd4+ Re3 Ne1 Bc4 Nd3 Nd1 b2 Bc5 Rc7 d7 Rc6 Ba3 Rd6 Bc5 Kc7 Ba3 Nb7 d8B+ Kd7 Bc7 Nd8 Rc1 b1N Nb2 Nc3 Rb1 Na4 Bb4 Rc6 d6 Nb6 Bb8 Rc5 Bc7 Rd5 Bc5 Bg7 Re6 Rd4 Rf6 Rd5 Rf7 Bc3 Rh7 Bf6 Nh3 Ke6 Ng5+ Ke5 d7+ Rd6 Bb4 Kd4 Ba3 Rd5 Bcd6 Kc3 Bac5 Bf8 Ba3 Re3 Bac5 B8g7 Bf8 Be7 Bd6 Ndf7 d8B Bd4 B8c7 Nd8 Be5 Rc5 Bf6 Rce5 Bd6 R5e4 Bf7 Rf4 Bd5 Rf2 Be6 Rd2 Bc4 Rd1+
r1N4r/4bkBb/3q2p1/PR3N2/Q2bRpR1/B7/b2qqPPr/2bR1B1K w - - 0 1 illegal: No possible last move, all moves rejected
1nqNR1Bb/1B4nR/n3P3/1p1r1p2/1p4Rb/bN1kr2P/r4PQB/4K2R w - - 0 1 legal: proof: d4 h5 c4 e5 dxe5 b6 g4 hxg4 c5 Bb7 c6 a5 b4 axb4 cxb7 Rh5 Qa4 Rh3 Qd1 Rh8 a4 Ke7 e4 Ke6 a5 d5 a6 c5 a7 f5 h3 g5 Bg2 d4 Bd2 d3 Ra3 g3 Rb3 g4 Bh6 d2+ Ke2 Qc8 Bf1 g2 Re3 g3 Ra3 Nf6 Rd3 Nh5 Rb3 Ng7 Qc2 d1R Nf3 g1B Bf4 g2 Bh2 Rd5 Ke1 b5 Be2 c4 Nbd2 c3 Bc4 Na6 b8R Be7 Rb7 Bh4 Rb1 Rf8 Nb3 Re8 Rd1 Re7 Rd4 Re8 Qd2 c2 Qg5 c1B Qg4 Ba3 Rd7 Rb8 a8B Re7 Bb7 Ra8 Nfd2 Re8 Na5 Re7 Nc6 Ra7 Bf4 Bh2 Nb3 g1N Qg2 Ne2 Rc7 B2g3 Rd7 Bf6 Rc7 Bgh4 Bh2 Ne8 Rd7 Bh8 Rc7 Ng7 Rd7 Kf7 e6+ Kf6 Nd8 Re8 e7 Ra8 Rd3 Nd4 Rg3 Nc6 Rg4 Ncb8 Rc7 Rd3 Bg8 Rd5 Rg3 Ke5 Rd7 Rf8 e8R+ Kf4 e5 Ra7 Rf3+ Ke4 Rf4+ Kd3 Rg4 Rf6 Rf7 Rc6 e6 Rc2 Rf6 Ra2 Rh6 Ra8 Rh7 Ra7 Bc6 Rc7 Bb7 Rc4 Rg1 Rf4 Rf1 Rf3 Rh1 Re3+
2n5/4r1P1/qbKRr3/p2P2nk/BQ1bp1nN/4R1p1/P2Br1NR/1B4Bb w - - 0 1 legal: proof: f4 c5 e4 h5 b4 d5 bxc5 dxe4 g4 g5 fxg5 hxg4 Kf2 e5 Ke3 a5 c4 b5 d4 f5 h4 Kf7 h5 g3 h6 Kg6 h7 b4 c6 b3 c7 b2 c5 Bb7 c8R Ra6 c6 Ne7 c7 Nbc6 Rh2 Bg7 Nf3 Qd6 Qa4 Nd8 Nc3 b1R Nd5 Rb2 Nh4+ Kh5 g6 Ne6 Bb5 Re8 h8B Ng5 Rd8 Nc8 Qb4 Re7 Bd2 Ba8 Re1 f4+ Ke2 f3+ Ke3 f2 Ba4 Qb6 Rd6 Bf6 Bg7 Bc6 Bh6 Qb7 g7 f1N+ Ke2 e3 Kd3 e2 Kc4 Qa7 Ne3 Bh1 Neg2 Ne3+ Kb5 Ng4 d5 Rb6+ Kc5 Qa6 Be3 Rd2 Bg1 e4 Bc2 Na7 c8B Ba1 Bd7 Nc8 Bda4 Bb2 Rf1 e1B Bb1 Re2 Rf3 Bf2+ Re3 Be5 Rd8 Rbe6 Rd6 Qa7+ Kb5 Bd4 Kc6 Bb6 Rf3 Bfd4 Rd3 Nh3 Bd2 Qa6 Re3 Ng5
2r2b2/pnKNRQ1N/B1p5/1r1PB2P/b1kn4/P2n1p1r/2b1BB2/4R1qN w - - 0 1 legal: proof: f4 h5 g4 e5 gxh5 exf4 c4 Ne7 c5 Ng8 c6 Be7 b4 Bd6 b5 Bf8 b6 dxc6 bxc7 Qd4 Bh3 Qd7 Bf1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 e4 g5 d4+ Kb4 h4 f5 d5 g4 h6 f3 h7 g3 Ne2 g2 a3+ Kc4 Be3 g1N Ng3+ Ne2 Nc3 b4 Bf2 b3 Na4 f4 Nc5 b2 Nd7 Ne7 Kd6 b1R e5 Na6 e6 Ng6+ e7 Ne5 Rg1 Nc5 Nh1 Rb7 Rg7 Rb5 Qb1 Qe8 Qg6 Ned3 Re1 Nd4 Be2 Qf7 Qf5 Qg8 Qf7 Ba6 c8B Nb7+ Kc7 Rb8 Be3 f2 e8N f1B Bf2 f3 Nef6 Ra8 Qh5 Bh3 Re7 Qg1 Qe8 Bf5 Qf7 Rg8 h8B Rg3 h5 Rh3 Bf1 Rb4 Bg7 Bb5 Be2 Ba4 Nh7 Rb5 Be5 Nc5 Ba6 Nb7 Ra1 Bg6 Re1 Re8 Nb8 Rc8+ Kd7 Be4 Bd1 Nb4 Be2+ Kc3 Rd1 Bec2 Re1 Nd8 Kd6 Nd3 Nd7 Kb3 Bfg3 Kc4 Bf2 Ra8 Kc7 Nb7 Ng3 Re8 Nh1 Rc8+
R1b2k2/n7/Q1n4r/1b1PN1BN/2qPKppR/2RP1pr1/1b1Bq3/3B1B1q w - - 0 1 illegal: No proof kernel
1N1B3k/NQ4q1/1q3qBP/1ppP1r2/2PR2b1/rB1p2bn/K1Rn4/n3R2R w - - 0 1 illegal: No possible last move, all moves rejected
2R1b3/1Qb4N/4qnp1/n4b2/6Pp/1BKNP1q1/3P1NpR/BkrrB1Bn w - - 0 1 illegal: No possible last move, all moves rejected
B1Q3Rr/1Kqq2Nn/BbPp2q1/P2R1r2/N1n1Pk2/2p5/bB3B1p/2N3b1 w - - 0 1 illegal: No possible last move, all moves rejected
QR1r1k1q/1B3B1q/PB2pbB1/Pbp2n2/2N1nN2/1p1b3q/P3Rr2/2K2N2 w - - 0 1 illegal: Other
N4BB1/2qb4/pP1RP3/rk1pN1n1/qN2qp2/3PN2R/1Q2R1K1/3br1bn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 f5 g4 h5 e4 h3 c4 a6 e5 d6 c6 f3 g5 h2 c7 Kd7 g6 f4 c5 h4 g7 h3 Nc3 Rh5 Qe2 Nf6 g8N Nc6 Ne7 Nd4 Ra2 Qe8 Ba3 Ne6 Ncd5 Ng5 Nb4 Ra7 Bg2 Nfe4+ Kf1 f2 d3 Qf7 Nf3 Qb3 Qd2 Qa4 Nf5 Rb7 Ne3 Bg7 Rg1 h1Q Qb2 Qh2 Rh1 Qg1+ Ke2 f1B+ Ke1 h2 c6+ Ke7 e6 Bd7 c8R Ng3 c7 Bd4 Ne5 d5 Rd8 Kd6 c8N+ Kc5 Nb6 Be2+ Bf1 Rh3 Na8 Bd1 b6 Rc7 Qc2+ Kb5 Qb2 Qg2 Be2 Rc5 Bh5 Qgc2 Bf7 Qc1 Kf2 Rh8 Re1 h1Q Re2 Qe4 Bg8 Rh1 Ra1 Re1 Rb1 Qg6 Kg2 Nh1 Ra1 Bc6 Rd6 Bd7 Ra2 Qc4 Rf2 Qc1 Rf3 Qh7 Rh3 Qc4 Nec2 Bg1 Ne3 Qc3 Qb1 Qc4 Re2 Qe7 Qc1 Qd8 Qc3 Qc7 Qb2 Qe4+ Nf3 Rc4 Na2+ Ka5 Rc6 Ng3 Bf8 Rc5 Rd6 Nh1 Nb4 Qc2 Rg3 Ka4 Rh3 Ra5 Qa1+ Kb5 Qb2 Qf5 Ne5 Qa4 Qb3 Qh7 Qb2 Qe4+
5B1Q/N4KbP/PB1p1q1k/1Rp5/Nn1BB1rq/r1p2R2/1bP2r1n/6Rb w - - 0 1 illegal: No proof kernel
rr4B1/2Q3p1/k1BP2B1/3rRP1p/1nqb3N/1b2R1pb/NRn1P1q1/B2K4 w - - 0 1 illegal: No proof kernel
B1r4n/Rq1N1P2/r1N5/B3P2b/1q1p1pnP/1pN1k2q/1Q3R2/brK3NR w - - 0 1 illegal: No possible last move, all moves rejected
3r1n2/K2p3R/Q2r1bk1/3bPnqR/1qp2R2/1N1r1P1p/1B1BPq1B/3B2N1 w - - 0 1 illegal: No proof kernel
NB3Rb1/3pQp2/N1PbpPB1/1nqrN1K1/2q5/2qn1R1R/1n1P2r1/Nk6 w - - 0 1 legal: proof: e4 c5 b4 g5 h4 gxh4 bxc5 b5 a4 Nc6 e5 Nd4 e6 Nxe6 axb5 Nd4 Ra4 Ne2 Ra6 Bb7 Ra1 Bc8 g4 a5 c4 h5 f4 h3 Kf2 h4 Kf3 e6 b6 Ke7 c6 Kf6 f5 Ke5 b7 Kd4 b8N Kd3 c7 a4 c5 h2 g5 a3 Kg4 a2 c6 h3 f6 Ba6 c8R Bd6 g6 Qa5 g7 Ne7 g8N Nf5 Qa4 Nd4 Ba3 Qc5 Rd8 Rh5 Nf3 Nb5 Ne7 Rd5 Qb4 Kc2 Rf8 Nc1 Ne5 Nd3 Nc8 Nb2 Nb6 Kc1 Bg2+ Kc2 Rf1 h1Q Rf3 h2 Kg5 Qc1 Bh3 h1N Bf5+ Rd3 Rh3 Nf2 Bg6 Qf1 Rf3 Kc1 Rh3 Rd5 Rf3 Nd3 Rh3 Bb7 Na6 Rd8 Na8 Qf4+ Kh5 Qfc4 Kg5 Rc8 Nc3+ Kc2 Rf1 a1Q Nd1 Kb1 Rff3 Rd8 Ne3 Bc8 Rfh8 Rg8 Nc2 Rg7 Rf8 Rg8 Qa5 Bb7 Bb4 Qa3 Qd8 Qac3 Qe7 Bc8 N6c7 Ba6 Na1 Rh8 Rhg3 Rh2 Ba5 Rg2 Bb6 Na3 Ba7 Bb5 Bb8 Ba4 Na6 Bc2 Rf5 Nb5 Rf3 Ne1 Bh5 Bh7 Bg6+ Ned3 Re3 Re2 Ref3 Bg8 Rh3 Rg2+
1N4kn/1RP2N2/1p2q1N1/1r3bbP/5ppR/1qQr2PB/N4n1B/1q1Bb2K w - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 e5 fxe5 a5 b4 axb4 g3 h4 Qd5 h3 Qg2 hxg2 Kf2 d5 c4 g5 e4 f5 h4 Kf7 a4 g4 c6 b6 e6+ Kg7 c7 d4 h5 b3 c5 f4 e7 b2 e8B d3 c6 d2 e5 d1Q a5 Q8d7 a6 Qa4 a7 Bb7 c8Q Kh7 e6 Qad4+ Be3 Be7 Nf3 g1B+ Kg2 Qc4 Ne5 Qd8 Rh4 Qc3 Kh1 Qb3 Nc3 b1Q Bh3 Bg5 e7 Na6 Na2 Nc5 Ng6 Nh6 Qc7 Rc8 a8N Nf7 Bd7 Kg8 e8N Rh6 Nd6 Nh8 Nf7 Qe8 Bf5 Ba6 Bc2 Bf2+ Bd1 Be1 Bg1 Bd3 Bh2 Bf5 Qe5 Qee6 Nc7 Rh7 Qc3 Ne4 Na6 Rd8 c7 Rd5 Nb8 Rb5 Nc1 Rh6 Ra7 Rh7 Na2 Rg7 Nfe5 Rd7 Rb7 Rd3 Nf7 Nf2+
4N1R1/1QpPK3/n2N1RPq/5NpB/4r3/1q1NPBB1/nq2prb1/5kbn w - - 0 1 illegal: No proof kernel
2N4q/1Pp2k2/1p3n1R/K1P2bbb/P1r2N1R/r3BB1Q/Nq2np2/1N4Bn w - - 0 1 illegal: No possible last move, all moves rejected
q1q1B2k/bp4N1/5pR1/3bNpPn/1N5K/1rq1B1rP/2nP3B/b1R3NQ w - - 0 1 illegal: No proof kernel
q2KB1N1/PP3P1b/3pr3/2B1p3/2b1RQ1R/NpbB1Brn/4r1R1/n3kq2 w - - 0 1 illegal: No possible last move
1r3r2/p1n3qk/4qQ1p/RnN1p1BR/2P5/3nNR1B/qPK1NPbR/4b3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 c4 Kg7 g4 d5 g5 e5 b6 h3 g6 h2 b7 d3 Qg4 d4 Qg2 h6 Qe4 Qc7 Qg2 Ne7 Qf3 Nd5 Qh3 Nb4 Ra2 N8a6 b8N Bb7 Ra5 Bg2 Nd7 Rb8 f6+ Kg8 g7 Kh7 Kd1 d2 g8R Nd3 f7 Bb4 Kc2 d1N f8R Be1 Qf3 Nc3 Bg5 Nb5 Nc5 Qg7 Ne2 Nac7 Rf6 Rf8 Nbc3 Rb8 Nd5 Rf8 Rg1 h1Q Ne3 Qh3 Rh1 Qe6 Rf5 Rb8 Rgf8 Rg8 R8f6 Rgf8 Rh4 Nf4 Rh2 d3+ Kc1 d2+ Kc2 Nd3 Qc6 Bd5 Bh3 Bg2 Rf3 Nc1 R6f5 d1Q+ Kb1 Qdd7 Kc2 Nd3 Qd6 Qd8 Qe7 Qdd7 Qf6 Qdd6 Bf4 Qc6 Rh5 Qce8 Bg5 Q8e7 Na6 Qa3 Nc5 Qa2
kn2B1R1/2BrN3/4P3/pNN1Q1P1/r3pp2/1PR3bb/K1Rn1Nb1/3q1bb1 w - - 0 1 illegal: No proof kernel
K4NQ1/B2RqN2/1r1ppP2/3P2Pn/N2B1b1r/2B1n1nn/1pB5/Rbkn4 w - - 0 1 legal: proof: e4 b5 a4 g5 h4 f5 exf5 gxh4 axb5 c5 b4 cxb4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kd5 Kf4 c4 h5 g4 a5 g5 h3 b6 h2 f6 b3 c5 h4 b7 h3 f7 b2 c6 a4 c7 a3 Bd3 a2 Nf3 Nc6 b8B Na7 Qb3 Rh4 Nc3 Nb5 Ba7 Rb8 Rd1 h1N Na4 h2 Ne5 Rb6 Bc2 Ng3 f3 Ba6 c8N h1N Nd6 Nf2 Kc5 Bg7 f8B Nc3 Ndf7 Nf6 Qd5 Bh8 Bg7 Bd3 Qb3 Nfh5 Ng6+ Kf5 f4 Ke4 f5 e6 Nf8 Nh3 Bd4 Be5 f6 Bf4 Qc4 Kf3 Qd5+ Ke2 Qa8 Bh7 d3 Be4 Bd2 Bh7 Rh1 Nd1 B2c3 Rb7 Qb8 d6+ Kc6 Rb3 Qa8 Qe8+ Kc7 Rb6 Qd8 Qe7+ Kc8 Rc6+ Kb8 Rb6+ Ka8 Bf5 Bg1 Bg6 d4 Bh7 d5 Bd3 Rb1 a1N Bgd4 Bf5 Ng6 Bd3 Qg8 Be4 Nf8 Bf5 Bb3 Nc2 Ra1 Nce3 Bc2 Be4 Ra3 Ndf2 Rha1 Nfd1 Bb3 Bb1 Bc2 Rc6 Rb3 Ra6 Rb7 Rb6 Bb3 Kd3 Rd7 Ke2 Be5 Kd3 Bc2+ Ke2 Bcd4 Kd2 Bc3+ Kc1 Bed4 Rb5 Bdb6 Rb4 Bbd4 Rb6
1N4qb/5kbp/1rQ2P2/pNP1BK1R/nB5P/2B3Nb/1r4pB/1R2b1bn w - - 0 1 illegal: No possible last move
B1nN3b/1pP1RB1p/2R2q2/NK1pN1P1/2bP4/4n1Q1/2b2B2/1bbB1krr w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 c5 b4 axb4 Qf3 c4 Qb3 cxb3 Ke2 Kf7 Kd3 e5 Kc4 d5+ Kb5 e4 f4 e3 d4 e2 a4 e1B g4 b2 c4 b3 f6 Kg6 f7 Bh6 f8N+ Kf7 c5 Be6 g6+ Kf6 g5+ Kf5 g7 Ke4 f5 Bc8 a5 Qf6 a6 Bb4 a7 Ba5 c6 Bd2 c7 Ke3 Na3 Kf2 Be2 b1B Bd1 b2 Nc4 Nd7 Na5 Ne5 Nf3 Nc4 Re1 Bd3 Ne5 b1B Ne6 Ne7 g8B Bg7 Bf7 Rf8 Nd8 Bh8 Re4 Bf4 Be3+ Kf1 Bf2 Bc1 Ra3 Be6 Rc3 Nc8 Rc2 Ne3+ Rc4 Qg6 f6 Bdc2 Rc6 Bh3 Bg8 Re8 f7 Qf6 f8Q Bg4 Qd6 Be2+ Nec4 Re5 Bf7 Rf5 Qh2 Rf4 Re7 Rh4 Qg3 Rh1 Kb4 Rg1 Ne5 Bc4 Kc5 Nd6 Ne6 Rf8 a8B Nc8 Nd8 Re8 Rd7 Re6 Re7 Rh1 Ng4 Re4 Ne5 Rg1 Kb4 Rh4 Kc5 Rhh1 Kb4 B4b3 Kb5 Bc4+
rr6/b1r2R2/RBN1kbr1/3pN1Q1/1P1nNBKB/3p2P1/p1Pn4/1b1B2q1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 a5 b4 e5 f6 h5 b6 e4+ Kf4 e3 b7 a4 f3 h3 g3 e2 Qd2 e1B Ne2 h2 Na3 h4 Bg2 d3 Qd1 h3 Rf1 h1R Kg4 h2 f4 Be7 f5 Bf2 Bf4 Nc6 b8N Nd4 Qc1 Qb6 Nc4 a3 Bf3 d5 Ra2 Ba6 Nc6 Rh6 Nc3 Rg6+ Kh5 Bb5 Bd1 Ba4 Ra1 Bb3 Ne4 Ba2 Kh4 Bb1 N4e5+ Kf8 Kh3 Qc5 f7 Nf6 Qe3 Kg7 f8B+ Kg8 Nc3 Ne4 f6 Nd2 Ne4 Bd8 Be7 Bg1 Nf3 Kf7 Nfe5+ Ke6 f7 Bf2 Beg5 Bf6 f8B Rb8 Kg4 Rg1 Be2 h1R Bd1 Rh7 Be7 Rgh1 Bd8 Rc7 Ra2 Rhh7 Ra1 Ra7 Bb6 Raa8 Ra2 Rgh6 Bh4 Rc7 Rb2 Bg1 Rb3 a2 Ra3 Bd8 Ra6 Rf6 Bh6 Rg6+ Qg5 Be7 Rf7 Bf6 Bf8 Nb5 Bd6 Qe3 Nd7 Nd4 Bf4 Qe1 Nde5 Be3 Be2 Qg1 Bd1 N4f3 Ba5 Ba7 Bb6 Nd4
7B/Rb3nNB/B2q4/2p3P1/1nNr1PNp/1P1bn3/r2bp1Q1/1NknK2R w - - 0 1 illegal: No possible last move, all moves rejected
4B3/2n2B2/1rP1KQq1/1p4pb/PBp3kN/1bB3Pn/2rR4/bNnRbN2 w - - 0 1 illegal: No proof kernel
1q4Bn/R5Np/pBr1B1PN/B1Q2nPb/bP2pb2/r4N1R/nk4Kn/8 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 b4 Kf7 c4 Ke6 f4 d5 Kf2 d3 g4 e3+ Kg2 d4 b6 e2 b7 d2 g6 d3 g5 Bd7 c5 Kd5 f5 Kc4 f6 e5 c6 e4 c7 Nc6 b8B Bd6 c8B Nce7 f7 Ba4 f8N Bf4 Nc3 Nh6 Bf5 Nf7 Qc2 d1B Rh3 d2 Bc7 Qb8 Ne6 Rc8 Ng7 Nh8 Ba5 Rc6 Be6+ Kd4 Nd5 Nf5 Nf6 e1N+ Kh1 Bh5 Ng4 d1N Bfc4 Nf3 Kg2 Nc3 Nh6 Nh2 Be3+ Ke5 Beb6 Na2 Bd8 Kd4 Qf2+ Be3 Bdb6+ Kc3 Nf3 Bf4 Qc5 Kc2 Bg8 Kb2 Bce6 a6 Rf1 Ra7 Rd1 Rac7 Rd7 Rc8 Ra7 Rd8 Ne5 Rd3 Nf3 Ra3
R1n5/2B1p1K1/q3bp2/n1k1nPQ1/2B3RR/N2b2Nr/r2PpP1b/2nR2N1 w - - 0 1 illegal: No proof kernel
4B1r1/b1PN1r2/2b1k1KB/nnb4P/Qp2p3/2Rb1N1R/3B1Pp1/q2R1Br1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Ke3 d5 Kf4 e5+ Ke3 b5 c4 g5 a4 d4+ Ke4 b3 h4 d3 a5 b4 f6 b2 a6 g3 a7 d2 h5 g4 c6 g2 c5 g3 c7 Nh6 c6 Bd7 c8B Rh7 Qe2 d1R Bd2 Nf5 Qa6 Ke6 f7 Nd4 Rh3 Qf6 Nc3 Nb5 Nf3 g1B Na4 g2 Nb6 Bh2 Qa4 Bc5 f8B Rf7 Bfh6 Qh8 Rc1 b1B+ Rc2 Bf4 c7 Bfe3 Bb7 Be8 Nd7 Nc6 Ba6 Rc8 a8R Na5 Bb7 Ba7 Bc6 Bec5 Rb8 Ba2 Rc3 Bc4 Bd3 Rg1 Bf1 Nd4 Rb5 Ra8 Rb8 Bb5 Rd8 Bd3+ Ke3 e4 Bb5 Rg7 Kf4 Rf7+ Kg5 Rb8 Bc6 Nb5 Kg6 Qe5 Rc1 Qb2 Rc3 Qa1 Nde5 Rh1 Bdg5 Bc4 Rd1 Bd3 Be3 Bd7 Bd2 Rbf8 Bde3 Rg1 Bd2 Bc8 Be8 Bb7 Nd7 Bc6 Nh2 Rh8 Nf3 Rg8+
b1N1N3/P3rBbk/P1b5/2Nr4/pn1B2pp/R2P2B1/b1r2KN1/R3nQ1q w - - 0 1 illegal: No proof kernel
NqRn1RbN/p1n4k/BR1rN1pr/2b3P1/3Q1P2/1n5r/2P2KpB/R5n1 w - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 f5 exf5 Nc6 d4 cxd4 g5 Nb8 Qg4 hxg4 f4 Kf7 h4 e5 b4 d5 h5 g6 f6 e4 h6 e3 b6 d3 b5 g3 h7 g2 b7 e2 b6 d2+ Kf2 e1N Ra6 d1R Be3 d4 Nd2 d3 Ngf3 Be6 Kg1 Nd7 b8R Ne7 b7 Nc5 Bd4 Nb3 Nc4 d2 Rb6 Nc6 Kf2 Bc5 Rc8 Qg8 b8Q Nd8 Qd6 Qf8 Ng1 Nf3 Ne2 Ng1 Be3 Qe8 Qd4 Kf8 f7 Bd5 Ne5 Kg7 f8R Bg8 Nd7+ Qe5 Qd5 Qb8 Nd4 Re1 Ba6 d1N+ Kg3 Nc3 Kf2 Rd1 Qc4 Nf3 Re1 Rd3 Ra1 Ng1 Qb4 Nb5 Qc4 Nc7 Qd5 Bf7 Qd6 Rg8 h8N Kh7 Ne6 Rg7 Qd4 Bg8 Rb5 Rf7 Nb6 Rd7 Rb4 Rd6 Rb5 Qb7 Rb4 Rb8 Na8 Rc3 Rb6 Rd3 Ke1 Rc3 Bf2 Rh3 Bg3 Rh6 Rc6 Qb4+ Kf2 Rb5 Rb6 Ra5 Bh2 Ra3 Rc6 Qb8 Rb6 Na5 Nf7 Rah3 Nh8 Nb3
3N4/1b2NR2/q2Qp2q/3p2b1/1p3Bbk/K1Pn2rP/2bP4/1BRNnNrB w - - 0 1 illegal: No possible last move, all moves rejected
R1QR3r/1qnrN1q1/1k1P2P1/1p2B1bp/nR5P/1N3N2/1nB1R1bp/n1K5 w - - 0 1 legal: proof: e4 a5 b4 axb4 c4 f5 exf5 d5 cxd5 g5 h4 g4 Qb3 Be6 Qg3 Bc8 Qh3 gxh3 Kd1 Kd7 a4 h5 f4 c5 d4 Kc7 g4 e5 f6 c4 d6+ Kb6 d5 e4 g5 b3 g6 e3 f7 c3 f5 h2 f6 b2 d7 Ra7 d6 Be7 f8R Na6 f7 Nf6 Bd3 Nc5 Ra2 Ne8 Bc2 Qc7 d8N Bf6 Nc6 Bh3 Nd2 b1Q Ngf3 Bg2 Nb3 Qa1 Ne7 e2+ Ke1 Qb2 Bf4 Qb8 Be5 Nc7 Rg8 Qf8 Rg1 Qg7 f8Q Qb1+ Bd1 c2 Kd2 e1N Qc8 c1N Bc2 Qb2 Rd8 Ned3 Re1 Qb1 Re4 Nb2 a5+ Ka6 Re2 Nca4 Ra3 Kb5 a6 Kb6 Bd1 Qe4 Bc2 Qc6 Nbd4 Qd5 Rb3+ Qb5 Rb4 Nb3+ Ke1 Na1 Kd2 Ka5 Kc1 Qc6 Qd7 b5 Qc8 Kb6 Nb3 Qb7 Qg4 Ra8 a7 Rb8 a8R Rc8 Rg8 Rd8 Qc8 Rd7 Rd8 Bg5+
1nqqN3/rRN3rK/Np1b2PP/BB4B1/3R2q1/3Bp1p1/1kbP4/4nQq1 w - - 0 1 illegal: No proof kernel
3rR2N/q2bn2p/1bq1k3/N4rR1/2P1q2P/2P2p1Q/1nBpNN1R/1KB3q1 w - - 0 1 legal: proof: d4 b5 f4 e5 b3 exd4 a4 g5 axb5 gxf4 Be3 c5 Bc1 c4 bxc4 Bb7 Bb2 Ba6 Bc1 Bc8 Kd2 Ke7 g4 d5 h4 a5 e4 f5 b6 a4 g5 d3 c3 d4 b7 f3 g6 f2 g7 a3 e5 f4 e6 a2 Rh2 f3 Rg2 Nd7 b8N Qc7 Qe1 Nb6 Rg5 Na4 Ne2 Ra5 Nc6+ Kd6 e7 Ke6 e8N Nb2 Nd6 Bd7 Nf7 Rf5 Na5 Ne7 g8R Qc6 Bh3 f1Q Qg3 Bh6 Re8 Qg1 Bg4 Bg7 Qh3 Be5 Bh5 Bc7 Bg6 Rg8 Nh8 Bb6 Na3 Qg4 Nc2 Qge4 Ne3 Rf8 Rb1 a1Q Ng4 Rg8 Nf2 Qa2 Rb8 Rd8 Ra1 Qaa4 Ra2 Qa3 Nb3 Qa7 Na5 Na4 Kd1 d2 Rc2 Qe5 Ra2 Nb2+ Kc2 d1Q+ Kb1 d3 Ra8 Rf8 Re8 Qg1 Rg2 Qf4 Rh2 d2 Ra3 Ke5 Rb3 Ke6 Rb5 Qfg4 Rc5 R5f6 Bc2 Rf5 Rb5 Qge4 Qg2 R5f6 Rg5 Rf5 Qh3 Rg8 Ra8 Rc8 Rb8 Rc7 Rf8 Rc8 Re8 Rd8
5B2/1R1b2PP/Rqp1pn2/b2kp1K1/5B2/3Bn2Q/1Rr1r1Pq/Bq2N1qN w - - 0 1 illegal: No proof kernel
4Rq1q/1Bb1p3/Q1R1n1Nk/1p1N3p/r2bPP2/4bBbK/P2n2NB/3Br3 w - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 a5 bxa5 f5 h3 fxg4 Nc3 g3 Nb1 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Qc8 Rh3 Qd7 Rh1 Qd8 e4 Kf7 d4 Kg7 g5 b5 d5 c5 g6 c3 a6 c4 a7 h6 d6 c2 d7 c3 Bf4 c1Q Nh3 g1B Be2 c2 Kf1 Nc6 Kg2 Nd4 Nc3 Bh2 Bf3 Nb3 Qd6 Nf6 Nd5 Ne8 Qa6 Qb2 Rac1 Nc7 Bd6 Qd4 Nhf4 Ne6 Kh3 Nd2 Ng2 h5 Rhf1 Kh6 g7 Rg8 Rfd1 Qb8 d8N Qe5 Nc6 Qc3 Ra1 c1B Ne5 Ba3 Bc7 Bd6 Rac1 Qd8 Bb8 Bc7 Ng6 Qf6 Rc6 Qd4 Ne1 g2 Rdc1 g1B Ng2 Bhg3 R1c3 Rh8 g8B Bg7 Rc1 Qf8 Rf1 Nd8 Be6 Qdf6 Beg4 Rg8 Bd1 Ne6 Bgf3 Bd8 Bc7 Qc3 Be5 Bc7 Bd6 Bd4 Be5 Rb8 a8B Rg7 Bb7 Ra8 Qb6 Ra4 Qa6 Bh4 Bh2 Bhg3 Bg4 Be3 f4 Rg8 Bgf3 Qh8 Re1 Bd4 Re3 Rg7 Rec3 Bge3 R3c4 Bd8 Rc8 Bc7 Re8 Rg8 Rc6 Rg7 Ne5 Rg4 Ng6 Rg5 Nc3 Rc5 Nd5 Rc1 Bb3 Rf1 Bbd1 Re1
2R1B1B1/1rp2rB1/r3PB2/N5r1/1QPPb1Rp/N3nN2/1bnK1kqp/1q6 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 fxe5 d5 e4 dxe4 d4 Ke7 g4 Ke6 b4 Kd5 g5 f5 g6 h5 g7 a5 b6 f4 b7 f3 e6 a4 c3 a3 b5 f2+ Kd2 h3 b6 h2 Bb5 f1R Ba4 e3+ Ke2 Ke4 c4 h4 Bb5 a2 Qa4 Nc6 b8B Qd5 b7 Rf7 Nf3 Ba3 Re1 Rh5 Qb4 Nf6 g8B Bb2 Ba4 Ng4 Ba7 Rb8 Na3 Rg5 Rg1 Bd7 Rb1 a1R Bc5 Ra2 Ke1 e2 Kd2 Ne3 Be7 Kf4 Bf6 e1Q+ Kd3 Qf1+ Kd2 Qe4 Ra1 Qb1 Rg3 Ne5 Rg1 N5g4 Bb5 Bc8 Be8 Nc2 Bg7 Nge3 Rg4+ Kf5 Bf6 Bd7 Bg7 Bc6 Bf6 Be4 Bg7 Ra8 b8N Ra7 Nc6 Rb7 Na5 Qh1 Ke2 Nd5 Bf4 Nde3 Bfe5 Qhg1 Bef6 Qh1 Rg2 Kf4 Kd2 Qhg1 Rf2 Kg3 Rg2+ Kh3 Rg4 Qg3 Bc6 Kg2 Be8 Kf2 Rf4 Qh1 Rg1 Qh3 Rgg4 Qb1 Rf5 Qhf1 Rd5 Qg2 Rd8 Ra1 Rc8 Qbh1 Nb1 Ra4 Na3 Qb1 Nc6 Ra8 Na5 Ra6
B2q2RR/1p4N1/4Npq1/1Rn4r/1P1Pq1BR/Br4n1/2KQbp1P/4bqk1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 a4 Qb3 axb3 Kd1 Kd7 d4 Kd6 a4 c5 e4 g5 a5 f6 a6 b2 h6 c4 h7 c3 a7 g4 Na3 b1Q Ne2 g3 Bh3 f3 Nc2 f2 Nf4 g2 Rg1 Bh6 Ra5 Nd7 Bg4 Nc5 Ne6 Ne7 Ne3 Nf5 Rb5 c2+ Kd2 Ng3 Ba3 Bf4 Re1 g1Q e5+ Kd7 d6 Kc6 d7 Qh1 Re2 Qe4 Kc3 Qg6 Nf5 Kd5 Nfg7 c1Q+ Rc2 Qf1 Re2 Qbf5 Re4 Bd2+ Kb2 Be1 Kc2 Qb6 d8R+ Qd6 Re8 Qd8 Rg8 Kc4 Kc1 Kd3 Rf4 Bd7 Kd1 Rc8 a8B Bc6 Kc1 Bf3 Kb1 Ke2+ Kb2 Nge4 Kc2 Rc6 Nf8 Rc7 e6 Rc8 e7 Ng3+ Kb2 Rc7 e8Q+ Qe4 Qe6 Re7 Qa2 Re5 Nfe6 Rh5 Bf5 Rh3 Rh4 Bg4 Kc1+ Kf3 Qc2 Kg2 Qd2 Be2 Bg4 Kg1 Re8 Rf8 h8R Rf7 Ref8 Rd7 Re8 Rd5 Reg8 Rh5 Kb2 Nh1 Kc1 Re3 Kb2 Ng3 Kc1 Rd3 Kc2 Rb3+
Nq1n4/1p1b4/1B1PR1R1/K5Pq/1N2R1Bn/p1N1Pn1Q/p1rk1n1r/1Rb5 w - - 0 1 illegal: No proof kernel
2q1rrNN/PQB2R2/4p3/2n2Pb1/2B1n1pK/B2Bk1Np/1b2Pn2/1q3nR1 w - - 0 1 legal: proof: g4 a5 c4 g5 b4 d5 cxd5 axb4 h4 Bf5 h5 Bg6 hxg6 f5 Qb3 fxg4 Qa4+ Qd7 Qd1 Qd8 a4 Kd7 d4 Kd6 f4 b5 Kf2 h5 Kg3 c5 g7 c4 a5 b3 a6 b4 f5 b2 a7 b3 Nf3 c3 Nh4 c2 Nd2 b1N Bg2 b2 Ng6 Nf6 g8B Nbd7 Be4 Bh6 Bd3 Qc8 Nf1 Nd2 Be6 b1Q Ba3+ Nc5 Bf7 c1N Qb3 Rg8 Qb7 Rf8 Nh8 Bg7 Rg1 Rb8 Ra2 Ra8 Rc2 h4+ Kh2 g3+ Kh3 g2 Ng3 Nfe4 Kg4 h3 Kh5 g4 Kh4 Qc7 Bg8 Kd7 d6 Rae8 Bgc4 e6 d5 Bb2 Rc3 Nf1 Rb3 Kd8 d7 Ke7 d8N Kf6 d6 Ke5 d7 Kf4 Nc6 Ke3 d8B Qb8 Ne7 Qc8 Rh1 g1B Ng8 Bf2 Rg1 Be1 Bc7 Bd2 Bc2+ N1d3 Rb5 Ndf2 B2d3 Nd7 Rd5 Ndc5 Rd7 Bdc3 Rf7 Be5 Bb8 Bf4 Bc7 Bg5+
1n3b2/pB2P2K/RpnB4/2Nr1bPR/1RqPb1qr/2N5/b1pQ2NN/k7 w - - 0 1 illegal: No possible last move, all moves rejected
Kn2kN2/1p6/P7/2q1Np2/1RBBqPbN/2RpqQrn/P2N3B/1n2r2r w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 bxa5 g5 Rh3 gxh4 Rh2 Ra7 Rh1 Ra8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ne2 Bc5 Kc3 d2 Ng1 d4+ Kb2 d3 Kc3 Bd4+ exd4 Be6 Na3 Bd7 Nb1 Bc8 Kb4 h5 Kc5 e5 g4 f5 c4 h3 a6 h4 d5 h2 g5 h3 d6 e4 g6 e3 g7 e2 d7+ Kf7 Nf3 e1R Bb2 Nh6 g8N Re6 Bd4 Qg5 d8B Qg6 Ne7 Ng8 Bc7 Re3 Nh4 Qg5 Kb6 Nf6 c5 Ng4 c6 Rg3 Bg2 Be6 Neg6 Bd5 Ne5+ Ke8 Qf3 d1N Nd2 Qe3 Rb1 Nc3 Rhc1 h1Q Rb4 Nb1 Rc3 h2 Bd6 Bb3 c7 Qc1 c8N h1Q Ne7 Bd1 N7g6 Rh5 Nf8 Qhe1 Nhg6 Rh1 Nh4 Qe4 Kc7 Q1e3 Kc8 Nc6+ Kc7 Rd8 Kb6 Nb8 Ka7 Rd7 Ka8 Re7 Ra3 Qcc6 Rc3 Qc5 Qe2 Q4f4 Bd5 Qfe4 Bc4 Re6 f3 Nf2 Nh7 Qg5 Nf8 Qec6 Ng4 Rgg1 Nd7 Nh3 Bh2 Rg3 Nf8 Qge7 Qf1 Re1 f4 Qe3 Ne5 Bg4 Qf3 Qce4
qB1R3Q/1bK2p2/2Rpn3/P5B1/NR2NP1r/b2P4/1brpq1rk/NR3q2 w - - 1 2 illegal: No extended proof kernel
2nnN3/Bk4qp/3pQn1P/1n1RrP2/4p2P/NB1R3b/K3RBrB/2r1n3 w - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 axb5 e6 e4 f5 g3 Be7 h5 Bh4 gxh4 fxe4 Kd2 a5 b4 g5 f4 e5 c4 a4 Kc2 g4 Kb2 e3 c5 d3 b6 e4 h6 a3+ Ka2 d2 b7 e2 b5 e1N b6 g3 c6 g2 c7 Qf6 Qb3 d1N Rh2 Qg7 Nf3 g1R Be3 Ne7 Ne5 Rg8 Qe6 Ra5 Re2 Nc6 b8B Nf2 b7 Ng4 Bf2 Nd8 Bba7 Nf6 Nc4 Re5 b8B Rh1 Nc3 Rg1 Rd1 Rg2 Rd3 d6 Nd5 Bd7 c8R Rf8 Rc5 Rh8 Qg4 Nc8 Nc7+ Ke7 Qg6 Bh3 f5 Kd7 Rcd5 Kc6 Ne8 Kb7 Bg1 Rf8 Bh2 Rf7 Bb6 Rc7 B8a7 Rc6 Bf2 Rc5 Kb3 a2 Na3 a1N+ Ka2 Nb3 Qf7+ Rc7 Qe6 Rc1 Ree3 Ka6 Be2 Nd4 Bd1 Kb7 Re2 Nb5 Bc2 Qd7 Bb3 Qg7
KNnkrN2/2RpN3/5R2/1pr1r2P/BP1PN1nr/4Qnb1/r1q1pB2/1R6 w - - 1 2 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 Ne2 hxg4 Ng1 b3 Nf3 b2 Bc4 b6 Ng1 Ba6 Bd3 Bc4 Bf1 Bb3 cxb3 Ra4 Bg2 Ra3 Bf1 Ra8 Ke2 e5 Ke3 c5 f4 g5 h4 e4 a4 c4 Kd4 g3 a5 g2 h5 e3 f6 g4 b4 g3 f5 c3 a6 c2 f7+ Ke7 f6+ Ke6 a7 Qe8 Qe1 Bg7 f8R Ne7 Nc3 b1N Nf3 g1R Nh4 g2 Ng6 Nc8 Bb5 Nc6+ Kc4 Rf1 d4 g1R f7 Rg5 Rh3 Qd8 Ne4 Be5 Qg3 e2 Be3 Rf4 Bf2 c1R+ Qc3 Rb8 a8N Rh4 Re3 Rc2 Ba4 Qc7 Kb5 Nd2 Ka6 Ra2 Rb1 Bg3 Qc1 Ne5 Rc3 Ndf3 Qe3 Qc5 Rc2 Ng4 Nc7+ Kf5 Rcc1 Ra8+ Kb7 Ra5 Na6 Ke6 Ka8 Re5 Rc2 Qc7 Rc4 Rad5 Rc3 b5 Nb8 Qc4 Rc2 Qd3 Rc4 Qc2 Rc7 Rc5 Re8+ Kf5 Re6 Re8 f8N Ne7 Ra6 Nc8 Nd6+ Kf6 Ne4+ Kf7 Rb6 R8e6 Rd6 Ke8 Rdc6 Re7 Ra6 Kd8 Rf6 Re8 Ne7 Ra1 Nh7 Ra3 Nf8 Ra2
1N1nB1rB/1q1p4/qbp1B1R1/1PP3Q1/pqN5/q1nK4/1PN2q2/R1Bk1r2 w - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 h3 g5 Qd2 g3 Qf4 g2 Bd2 g4 Bc1 g3 Qd2 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 Kf7 e4 Kf6 c4 Kg5 f3 Kf4 g5 a5 g6 h5 e5 d3 e6 a4 e7 h4 e8B h3 g7 h2 Qc2 Bc5 Bf7 Nc6 Bh5 Qh4 Be8 Nge7 g8N Nd8 Na3 Bb6 c5 Nd5 Nc4 Nc3 Ne7 Rg8 Nc6 Qf6 Nb8 Qd4 Na3 Qb4 Ne2+ Kf5 f4 Ke4 f5 Kf3 f6 g1Q f7 g2 f8B Ba5 Bh6 Ra6 Ng3 Nb1+ Kd1 d2 Be3 Rf6 Nc4 Rf5 Bd4 Qa3 Bg6 Bb6 Qb3+ Qe3 Bg7 Qc3 Be8 g1Q Ne2 Qg3 Rg1 h1Q Nd4+ Kf2 Bf8 Qb7 Bg7 c6 Be5 Qa5 Kc2 Ke1 Bh3+ Rf1 Be6 Qf2 Qg3 Qaa6 Bh8 Qb4 Kd3 d1Q+ Ke4 Qdb3 Nc2+ Ke2 Qe3+ Kd1 Rg6 Qa2 Kd3 Nc3 Qg5 Qaa3
nk1qq2B/1B2b1p1/b1QRP1r1/1p1KrNP1/4r1R1/p4Rr1/3PN1B1/4Rr2 w - - 0 1 illegal: No possible last move
2nq2nN/1p4Q1/r2B2BR/BP4n1/1n2p2P/1nq4N/K1bNP2p/1Bk2b1R w - - 0 2 illegal: No proof kernel
1N2R3/q2rN1KP/4N1b1/p3nr2/1QpqPBpr/3R4/1NPrrkBb/7B w - - 0 1 legal: proof: d4 h5 a4 e5 e4 exd4 f4 b5 axb5 Nc6 g4 Ne5 fxe5 hxg4 Ke2 Ke7 Kd3 Ke6 b4 c5 h4 f5 h5 g5 h6 d5 b6 a5 b5 g3 b7 g4 b8N g2 b6 f4 b7 f3 Ra2 f2 Be2 f1R Nd2 Ra7 Ra3 Bd6 Qe1 Ne7 Nc4 Nc6 Qb4 Rf5 Nh3 g1Q Nb2 Bd7 Bf1 Be8 Bg2 Bg6 Bf4 Qc7 Rh2 Qd7 Bh1 Qf7 Kd2 d3 Kc3 d4+ Kc4 d2 Rd3 d1R Ng5+ Ke7+ e6 Kf6 Rh4 Ne5+ Kd5 Re1 Nc6 Re2 b8N Rd7 Rhh3 Qg7 e7 Rh7 e8B Qe7 Rb3 d3 Ne6 d2 Rbd3 d1R Rh4 Qd8 Ne7 Rdd2 Rh5 Qb6 Rg5 Qa7 Bf7 Bh5 Rg8 Bg6 Be8 Rb7 Bb5 Rd7 Rd4 Qa1 Bd3 c4 Re8 Rh2 Bf1 Rhe2 Rd3 Qd1 Bfg2 Qdg1 Nd4 Qd1 Bh2 Kg5 Ke6 Kh4 Bf4 Qg1 Nb5 Qgd4 Nc7 Rg5 Kf6 Rh8 Be3 Kg3 Bf4+ Kf2 Kg7 Rh5 Ne6 Rh4 h7 Rf8 Qb6 Rf5 Qb4 Nc6+ Be5 Bc7 Bf6 Bh2 Be5 Qd6 Bf4 Ne5 Rd8 Qd5 Re8 Qdd4
n1B2Qb1/P4Pp1/Nb1bb3/1r1k1NN1/q5nb/4p1Pq/1R4Kp/BRBN4 w - - 0 1 illegal: No possible last move
qBkN2n1/qn3BN1/3p3n/2b1Np2/2PBbK1p/4PR1P/3b3R/bN2r2Q w - - 0 1 legal: proof: f4 c5 g4 e5 a4 b5 axb5 a5 d4 cxd4 g5 Ra6 Kf2 f5 Ke1 Rf6 gxf6 exf4 Kf2 h5 Kf3 g5 b4 d6 c4 Kd7 f7 g4+ Kf2 a4 h3 a3 b6 g3+ Kf3 h4 b7 g2 b5 a2 b6 d3 Ba3 d2 Qa4+ Nc6 b8B d1N b7 Nf2 Bc5 Bh6 Qd1 Ng4 Bd4 Na5 Rh2 Qb6 Qe1 Qa7 f8N+ Kd8 Qd1 Bg5 Qc1 N4h6 Ne6+ Kd7 Ng7 Qa8 Kf2 f3 Qd1 Bd2 Qe1 Bb4 Ke3 f2 Nf3 g1B Bg2 f1Q+ Kf4 Qa7 Bh1 Qg2 Ne5+ Kd8 Qc1 Qc6 Bd5 Bd2+ Be3 Qca6 Bf7 Be6 Qf1 Bd5 Qg2 Be4 Qh1 Bc3 Bd4 Bb4 Bc3 Bgc5 Bd4 Bd2+ e3 Qa8 Na3 Q6a7 Rf1 a1B Rf3 Rh7 Ne8 Rg7 Nb1 Rg1 Ng7 Rd1 Bc7+ Ke7 b8N Re1 Nbc6+ Kf8 Rg3 Nb7 Nd8 Ke7 Rf3 Qa4 Nd3 Kd7 Bb8 Q4a7 Ne5+ Kc8
1KRn4/pRPN3N/k3q3/2BQ1q1R/b1n1rp1p/4P1rP/q1B1n3/5RqN w - - 0 1 legal: proof: f4 b5 d4 f5 a4 c5 axb5 cxd4 g3 e6 g4 Be7 g5 Bf6 gxf6 e5 Ra3 exf4 Ra5 Na6 Ra1 Nb8 Kf2 f3 Kg3 d5 Kf4 Kd7 Ke5 Kc7 b4 Kb7 c4 g5 c5 h5 h3 h4 f7 g4 f8N g3 e3 f2 b6 d3 b5 g2 Be2 f1Q Ba3 d2 Bd3 d4 Nc3 Ne7 Nd5 Rg8 Nh7 Qe8 Kd6 Nec6 Ndf6 Ne5 Ne2 g1N Ng3 Bd7 Qb3 d1Q Bc2 Bc6 Nd7 Ne2 Bb4 f4 Ra5 Qd3 Rg1 Qfd1 Nh1 Qa1 Rb1 Qdg6+ Qe6 Qg1 Rf1 d3 Qc4 d2 Qe6 Bd5 Ba3 Bb3 c6+ Kc8 Bb4 Rg3 Qg8 Qa2 b7+ Kd8 b6 Ba4 Qe6 Qf7 Rd5 Qg8 Bc5 d1Q Bb1 Qd3 Bc2 Nf3 Qe4 Nd2 Qc4 Qe4 Rh5 Qf5 Qe6 Na6 Qd5 Nc7 Bd4 Rc8 b8R Ne6 Ra8 Rb8 Bc5 Kc8 c7 Bc6 Ke7 Kb7 Kd6 Rf8 Rc8 Ka6 b7 Ba4 b8R Re8 Rb5 Nc4+ Kc6 Ng5 Qe5 Nf7 Qd5 Bb3 Rbb8 Re4 Rb6+ Ka5 Kb7 Ba4 Rb3 Nd8+ Kb8 Qge6 Rb7 Ka6
1q2N1nB/3BrNq1/1r3p2/p1Q1bN1B/1PRnP1N1/1K2np1k/5PR1/2r4r w - - 0 1 illegal: No proof kernel
1nnqb2B/p1p1p1PQ/R2NP3/Prk3nR/4q3/1n2bR1B/1R2B2N/q4K2 w - - 0 2 legal: proof: d4 g5 g4 b6 c4 Bh6 f4 Na6 fxg5 Bf8 h4 Nb4 g6 Na6 g5 Rb8 c5 bxc5 g7 Rb6 h5 Rg6 hxg6 cxd4 Qd2 d3 Qc2 Nh6 Qd1 Ng8 e4 h5 a4 d5 b4 Kd7 a5 Kd6 b5 f5 e5+ Kc5 b6 h4 e6 f4 b7 d4 b8R d2+ Kf2 f3 Bb2 d3 Ra2 h3 Bg2 h2 Bh3 Rh5 Na3 Nf6 g8B Nd7 g7 Nb6 g6 Bd7 Nc4 Be8 Qb1 d1Q Bh7 d2 g8R Nc8 Rb6 Bh6 Nd6 Nb8 Rf8 Bf4 Qd3 Qa1 Bh8 d1N+ Kf1 f2 g7 Be3 Nf3 Nc3+ Qb1 Rd5 Rab2 Ne4 Ra6 Ng5 Bd3 Rf5 Be2 Re5 Kg2 f1N Qh7 Nd2 Rf5 Nb3 Rf1 Nf7 Rh5 Ng5 Rf2 Qa3 Kf1 h1Q+ Ng1 Qe4 Nf3 Rd5 Nh2 Qa1+ Bd1 Rd4 Rf7 Rb4 Rf3 Qa2 Be2 Rb5 Bg2 Qaa4 Bh3 Qa1+
8/1bn1B3/2p1pKNq/1q1BP3/3NRR2/1pNQP1n1/rP2rn1N/Rr3r1k w - - 0 2 legal: proof: c4 g5 a4 d5 cxd5 Nc6 h4 gxh4 a5 Nb4 e4 Bh6 a6 Be3 fxe3 Nxa6 Nf3 Nb4 Ng1 Na2 Ke2 Kd7 Kd3 Kd6 Kd4 f5 g4 a5 g5 b5 g6 h5 d3 c6 g7 a4 Nc3 f4 Rh3 b4 Nf3 b3 Qe1 a3 Rh2 e6 Rg2 h3 Rh2 h4 Qd1 Nh6 g8N Nb4 Nf6 a2 Bg2 Na6 Ng4 Qg5 Bd2 Nc7 Rh1 h2 Rf1 h1Q Ngh2 h3 Qb1 Ke7 d6+ Kf6 d7 Qb5 d8N Ng4 Nf7 Bb7 N7e5 Nf2 Ng6 Ra3 Ne1 Kg5 Nc2 f3 Qd1 Nd5 Ke5 Ra4 d4 Nc7+ d5 Rd8 Rc1 a1R Nd4 Rb1 Be1 Ra7 Qd3 Ra2 Bd2 Kh5 Kf6 Rh8 e5 Rh6 Ng4 h2 d6 Rh8 d7 Rd8 Nf4+ Kh4 Ng6+ Kg3 Rce1 Rg8 d8R Rg7 Ra8 Rd7 Ra4 Rd5 Rb4 Rc5 Nd1 Rc2 Bc3 Re2 Ra4 Qg1 Bb4 h1N Nc3 Qh2 Be7 Qh6 Nh2 Rc2 Bh3 Re2 Bf5 Kg2 Be4 Ng3 Bd5 Qc4 Nc2 Qb5 Re4 Nd1 Nd4 f2 Rh1 f1R+ Rf4+ Kh3 Rg1 Nf2 Rg2 Ngh1 Rgg4 Ng3 Re4 Kg2 Rgf4 Kh1 Rd1 Rc1 Re1 Rcc2 Rb1 Rcc1 Ra1 Rb1
4B1rN/4QR1P/1nq1b2q/2Bk2q1/q3p1B1/RrPrPNp1/1pn4K/1R1R4 w - - 0 1 illegal: No possible last move, all moves rejected
1BR5/qNn2PkN/2pqpN1r/K1PQ3n/Rp2R1P1/5r2/3nB1Nn/3rb3 w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 e5 f5 e6 dxe6 h3 e5 Qf3 e4 Qd1 Bd7 Be2 Bb5 Bf1 Be2 gxf5 g4 Bb2 g3 Bc1 Bg4 hxg4 Qd3 Ba3 Qd4 Bc1 Qd8 a4 Kf7 d4 b5 Kd2 h5 f4 e6 c4 c6 c5 b3 Kc3 b2 Kb4 e3 a5 e2 f6 e1N f5 g2 d5 h4 d6 h3 a6 h2 a7 Qb6 d7 Ne7 Nd2 b1N Be2 Ng8 Ra4 Be7 Ne4 Nd2 Nf3 g1R Nh4 Rh6 Ng2 Nef3 d8N+ Kf8 f7 Kg7 f8N Bh4 Nf6 Be1 Nb7 Na6+ Kc3 Re8 a8R Qa7 N8h7 Rf8 Rc8 Rf1 Rg1 h1Q Qb3 Qh4 Qd5 Qh2 Re4 Qd6 Ra4 Nb8 Kb4 Na6+ Ka5 b4 Bb2 Rf7 Be5 Nh2 Rh1 Rf3 Rf1 Rd3 Rf4 Rf3 Re4 Rd7 Bf4 Rd8 Nd7 Nf6 Be5 Qe7 Bb8 Nh5 Ndf6 Qd6 Ng8 Rd7 f6+ Kh8 f7 Kg7 Ngf6 Ndf1 Rc4 Qg3 Qe5 Rd1 Qe4 Nd2 Qd5 Qd6 Re4 Nc7+
K1B1R1bN/p1q3B1/p2P1R1N/P7/1P1q1b1k/p1r4q/n1bq1r2/BB2N2Q w - - 0 1 illegal: Other
3q4/NP1pR1rq/2p2n1p/r1qP1P2/N2R4/B2N1KnR/2k1Br1Q/2b1r1R1 w - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 axb5 Nh6 c5 Nf7 b6 Nh6 b5 Ng8 c6 Bb7 cxb7 Bg7 Ke2 Bh6 Ke1 Bf8 Ke2 Kf7 g4 Kg6 d4 e5 f4 a5 g5 Kf5 d5 h3 g6 h2 g7 e3 Qb3 Ke4 f5 a4 Ra3 c6 Bd2 Ra5 Bc1 Nf6 g8N Na6 b8R Nc5 b7 Bh6 Ne7 Rg8 b6 Rg2+ Ke1 e2 Nc3+ Kd3 Qa2 Nce4 Nc8 Ng3 Nh3 e4 Rg1 h1Q Na7 Bg5 Bb2 Bc1 Nf4+ Kc2 Nd3 h6 Rb3 a3 Na4 Qh5 Ra8 Qg6 b8R Qf7 b7 Qh7 Qa1 a2 Ba3 Qe8 Qd4 a1Q Qf2 Qd4 Rb4 Qeg8 Re8 Qc5 Re7 Qd8 Rd4 Nh1 Rc8 Rg7 Qg2 Ng3 Kf2 e1R Ra8 e3+ Kf3+ Re2 Qh2 Rg2 Be2 Qdh8 Bf1 e2 Rg8 e1R Be2 Rf7 Rgg4 Rg7 Rh4 Qd8 Rh3 Rf2+
2RNR3/1N2K3/2Pn2Nn/4N1qp/Bp1brr2/4qr2/r1pk1PqP/QB4B1 w - - 0 1 illegal: Other
2K2NR1/1N1rpbR1/B2r2qP/p1n4N/PBbBP2q/3r4/1B3p2/Qqq2k2 w - - 0 2 illegal: No proof kernel
k1B5/2p1q2p/bb5Q/P2N4/q1NbBP1K/B1Pn1n2/bpr1qB2/1N3RR1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 a5 Ba6 axb4 Bf1 b5 h3 f5 gxf5 g5 h4 g4 Rh3 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Qd4 Nh3 Qd5 Ng1 Qd8 d4 Kd7 f4 Kc6 Kf2 Kb7 Kg3 e5 a4 b3 f6 b2 g6 b4 f7 b3 d5 e3 d6 e4 c3 e2 d7 e1Q+ Kg2 g3 Kh3 g2 g7 e3 a5 e2 Qd3 Nh6 g8B Bg7 f8B Qe7 Be6 Rg8 d8N+ Ka8 Qd4 Nd7 Qf2 Nf7 Qh4 Ba6 Nc6 Qd1 Nf3 g1B Qh6 e1Q Bd3 Qee2 Nfe5 Ng5+ Kh4 Nc5 Nc4 B7d4 Be4 Nd3 Bc8 Bb6 Bg7 Bgd4 Rf1 Rd8 Nb4+ Rd5 Nbd2 b1B Ba3 Ba2 Nb1 b2 Be5 Qdc2 Bd6 Qa4 Bc5 Bh8 Bf2 Bhd4 Bg6 Re5 Nd5 Re3 Bgf5 Rg3 Be4 Rg2 Be3 Qf3 Rg1 Rc2 Bf2 Qe2 Nbd2 Qd8 Raf1 Qe7 Nb1 Nf3+
4B1N1/1b1Rp1Pr/np1bbN2/2Q2p2/2B1N1R1/1rP1Nk1b/1Pq4K/1q2q1B1 w - - 0 1 illegal: No possible last move
1Nk1nN2/K1N1pp2/1R2P1NR/2pP1bn1/1R3nn1/2r1P1B1/Qr3rBb/2n5 w - - 0 1 legal: proof: c4 b5 h4 g5 a4 gxh4 axb5 d5 e4 dxc4 Rh3 Qd4 Rh1 Qe3+ fxe3 Kd8 Qc2 Kd7 Qd1 Ke8 Ke2 Kd7 d4 h5 g4 c5 b4 a5 b6 c3 Kd3 h3 Kc4 c2 Kb5 h2 e5 a4 g5 h4 g6 a3 d5 h3 g7 a2 b7 Rh5 Kb6 Nc6 b8N+ Kd8 b5 Nf6 g8N Nb4 Nf3 Nd3 Na3 Nf4 Bg2 Ne8 Bd2 c1N Qe2 Bg7 Rb1 a1R Be1 Bf5 e6 Be5 Nf6 Ra2 Nfd7 Kc8 Nh4 Rb2 Ng6 Ra4 Bh4 Rc4 Ndf8 Rc3 Ka7 Rh8 b6 Rg8 Rd1 h1N Bg3 h2 Nb5 Nf2 Nc7 Ne4 Rh1 Ng5 Qc4 Rh8 Qa2 Rf2 Rb4 Rh5 Rg1 h1N Rd1 Rh2 b7+ Kd8 Rg1 Rb2 Rb6 Nf2 Rh1 Ng4 Rb4 Rh7 Rh5 Rg7 Rh8 Rh7 Rb6 Rh2 Rh6 Bd6 Bf3 Rhe2 Bg2 Rf2 Rb4 Rb1 Nba6 Nfh3 Bh4 Bh2 Bg3 Nd6 Ka8 Rbb2 b8R+ Nc8 R8b6 Nf4 Kb7 Nd6+ Ka7 Ne8 Nb8 Kc8
r2r2r1/R4B2/r3bbPn/1Bk5/p2N1p2/P1PKB1p1/rN3nQ1/bNN4R w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g5 Bb2 Qd5 Ba3 hxg4 Bc1 g3 Bg2 g4 Bf1 Qg5 fxg5 Kd7 Ba6 Kd8 Bf1 Ke8 Ke2 Kd7 h4 Kc6 d4 a5 a3 b5 h5 f5 h6 e5 h7 a4 Bh3 f4 Bf1 b4 Qe1 g2 Qg3 b3 Be3 b2 Rh3 Be6 d5+ Kb5 d6 Nh6 d7 Na6 d8N Be7 c6 Nb4 c7 Bf6 c8B Nd3 Qf3 Nf2 Nc6 Rd8 Nd4+ Kc5 h8N g3 g6 Rg8 Nd2 b1R Nf7 Rb6 Nd6 Rba6 Nb1 Rd8 Kd2 Rg8 Nge2 g1R Nc4 Rg2 Kc3 Rd8 Nc1 Rh2 Bd2 e3 Qg2 e2 Nb2 e1R Be3 e4 Bb5 Rg8 Bcd7 Rd1 Be8 Rd2 Bf7 Rd1 Bd2 e3 Rh4 e2 Be3 Nhg4 Rh7 Nh6 Bfe8 Rd2 Ra7 e1B Bf7 Rh5 Bf1 Rd5 Bb5 Rdd8 Bd7 Nh3 Bb5 Re2+ Kd3 Bc3 Nc4 Bb2 c3 Rf2 Ra2 Ba1 Re2 Ng5 Re1 Ne4 Rh1 Ra2 Nb2 Nf2+
1nRBQR2/R5nN/6pp/Pq3Nn1/1p1K4/n1nNR2r/kB1b2PP/2r2n2 w - - 1 2 legal: proof: d4 a5 b4 axb4 c4 d5 cxd5 Kd7 e4 Nh6 d6 Kc6 d7 Ng8 d5+ Kd6 Bc4 f5 Bd3 b6 Bc2 Ke5 Bd3 Kf6 d6 Bb7 Bc2 Bd5 exd5 Kf7 Be4 fxe4 Kd2 e5 Ke3 c5 f4 b3 a4 b2 a5 c4 f5 c3 f6 g6 Bd2 b5 Qb3 c2 Qa2 c1N Nc3 b1N Nge2 b4 Ng3 Qe8 d8B Qb5 d7 Ne7 d6+ Nb3 Nf1 Ke6 f7 Nf5+ Kf2 e3+ Kf3 e2 Ke4 e1N Qa4 Nc2 Bc1 Nca3 Nd5 Bh6 Bb2 Ng7 Ng3 Bd2 Rf1 Ra7 f8R Rc7 R1f7 Rc1 Nf6 Nc3+ Kf3 h6 Nh7 Kd5 Nf5 Kc4 Ra2 e4+ Kf2 Nc2 Ra3 e3+ Kf3 e2 Re7 Nb1 Ke4 e1N Ref7 Nf3 Re7 Nba1 Re3 Nca3 Ref7 Qa6 Re7 Ng5+ Ke5 Rc3 Qb5+ Kb3 Kd4 Ka2 Qe5 Qf1 Ref7 Nh3 Qe8 Qb5 Bb6 Nb3+ Ke4 Ng1 d8N Nf3 d7 Ne1 Qe5 Qa6 Rd3 Bf4 Ne6 Nc5+ Kd4 Nd2 d8R Na4 Rfe8 Qb5 Nc5 Nf1 Ra7 Bd2 Rg3 Rf3 Nd3 Rf8 Qe2 Rf7 Rf8 Rc7 Qe8 Rc1 Rc8 Nc3 Bd8 Re3 Rg5 Rh3 Rg4 Qb7 Re4 Nf3+ Kc5 Qa6 Re3 Ng5 Kd4 Qb5
1R5K/nnBP3R/2P1RNk1/bB1r1nbr/1p2R3/1PQ3pp/B3b3/1r3nN1 w - - 0 1 illegal: No proof kernel
R4b1b/B2nrbp1/pr2P3/P1RPRR2/B1N2p1N/1nB1b3/1Q2nK1k/4r3 w - - 0 1 illegal: Other
1rB2n2/3BQ1pp/nKpPrN1b/8/3N2n1/B2BPb2/2Pk3r/R1bN1nR1 w - - 0 1 illegal: No proof kernel
nB2B3/3K3Q/1p2Nq1q/p3qRn1/1knNPpR1/1qbr1P2/P3N3/N4Rq1 w - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxb4 d5 f5 d6 f4 Nf3 Ra6 Ng1 exd6 Qd2 d5 Qd1 d4 h3 g5 Qd2 Rf6 Qd3 b6 Qd1 Rf5 Rh2 Bb7 Rh1 Bf3 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Qc7 Qd2 Qc8 Qd1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 d5 Ke6 h5 c4 d3 e4 d2 g5 g2 f6 d4 f7 d3 f3 h4 g6 h3 g7 h2 Bb2 b3 Ne2 g1Q Be5 b2 Na3 b1N Nc2 Nh6 g8R Bg7 f8N Na6 Bb8 Bc3 Rg4 Qf6+ Kd7 Nc7 Qe1 d1Q Qh4 Nf7 Qh7 Qd2 Bh3 Na3 Rf1 Na8 Na1 Rg8 Ne6+ Kb4 c5 Ng5 c6 Qb2 c7 d2 c8N d1Q+ Nd6 Qdb3 Nf5 Nc4 Nfd4 Qe5 Rg3 Rc8 Bf5 Qf6 Bg6 Rc6 Be8 Rd6+ Kc8 Rd7 Rg4 Rd5 Nf5 Rd3 Nfd4 Qf2 Rhg1 h1Q Kd7 Qhh6 Rh1 Qg1 Rh5 Nh3 Re5 Ng5 Rf5 Qe5 Nc1 Qbf2 Ne2 Qfh4 Qf7 Qhf6 Qh7 Qhh6
B2R1b2/p4PRN/n3p2p/2B3NP/KnBRq3/n1n2nq1/P1n4k/R1Q1r3 w - - 0 1 legal: proof: e4 d5 f4 dxe4 c4 b5 f5 bxc4 f6 e6 Kf2 Na6 Ke1 Rb8 g4 Kd7 Qf3 Rb6 Qd1 Rd6 Na3 Kc6 Nb1 Rd7 Ne2 Kd6 Ng1 Re7 fxe7 Kd7 Nf3 f5 Ng1 e3 Qf3 f4 Qd1 Bb7 Nf3 Be4 Ng1 Bf5 gxf5 Qc8 Bg2 Qb8 Bf1 Qd8 e8B+ Kd6 b4 Ke5 h4 c5 d3 g5 f6 c3 b5 c2 f7 f3 b6 Kf4 b7 Kg3 b8R e2 Kd2 e1N Kc3 g4 Kb3 c4+ Ka4 c3 d4 f2 d5 Nf6 d6 Nd5 d7 Ndb4 Rh2 Qc7 Bh6 c1N d8R c2 Bc6 Ne2 Nh3 c1Q Qd4 Qe3 Nc3 Qe4 Nd5 Nec2 Qb2 Na3 Be3 h6 h5 Rg8 Qc1 Nc3+ Kb3 Qce5 Bc4 f1N Bc5 Ne3 Nf6 Nec2 Rhd2 Rg7 R2d5 Kh2 Nh7 g3 Ba8 g2 Rd4 g1N N3g5 Qg3 Rbc8 Nf3 Rb8 Bd6 Rg8 Bf8 Rbd8 Rg6 Rg7 Rf6 R4d5 Rf5 R5d7 Rd5 Rd6 Rd1 Rd4 Ne2 Ka4 Rh1 Qb1 Re1 Qc1 Nc3+
1rR1n3/2N1N1k1/PNnPr2n/2BK1b2/pNp2bP1/Rp2Q2B/1q3p2/4r2R w - - 0 1 illegal: No proof kernel
2bR1RrQ/2BnPK1P/1bN1p1P1/2k4q/Bpn1Rp2/B3pRrb/8/5Nr1 w - - 0 1 illegal: No proof kernel
Bn3n2/4p1q1/P2R2bR/P2Np1B1/2Nn1pNQ/r2PBpbr/1Nb5/1K3k2 w - - 0 1 illegal: No proof kernel
2K5/nQ1p1p1k/2BPPp2/PR3NB1/6r1/2rqpRN1/b1n1n1b1/rRR4B w - - 0 1 illegal: No possible last move
4B2n/1p1p1rQ1/RB1Nb2P/3ppN2/1Pr1n3/2P3q1/B1K3r1/bNBR1n1k w - - 0 1 illegal: No proof kernel forced: wxLB
1b2nN1R/p3ppP1/1NP2q2/rr4Bp/1n4b1/P1b2k2/nQ1BRN2/1NK1R3 w - - 0 1 illegal: No possible last move
2bq1k1r/R3Np1P/1p5b/pR1NB1R1/p1Q5/1qK4n/PB1n1P2/1bR2Nr1 w - - 0 1 legal: proof: d4 h5 g4 e5 dxe5 c6 gxh5 Rh7 b4 Ke7 b5 cxb5 Bg2 Ke8 Bd5 Rh6 Bb3 Rh8 Ba4 bxa4 Kd2 g5 c4 d5 e4 a5 h4 g4 c5 g3 h6 d4 e6 b6 h5 d3 e5 g2 e7 Ra7 c6 Bh3 c7 Na6 c8N Nb4 Nc3 Nf6 Nge2 g1Q Nd5 Na6 Rb1 Be6 Rb5 Qc7 Qc2 Qd8 Bb2 Nc5 Ng3 Rc7 Qc3 Na6 h7 Rg8 h8B Qa1 Qb4 Rc1 h6 Nh5 h7 Bh6+ Qf4 Nc5 Rf1 Re1 Kc3 d2 Qc4 d1B Rg1 Bf3 Rg2 Rh1 Nf1 Be4 Rg5 Nb3 Bf6 Rg1 Bh8 Kd7 e8R Nf4 Bg7 Nh3 Bh8 Qc7 Re7+ Kd8 Rd7+ Ke8 Bf6 Qb8 Ra7 Rh8 Bg7 Bd7 e6 Nd2 e7 Qc7 Bd4 Qd8 Bg7 Qe1 Bf6 Bb1 Bg7 Bc6 Bf6 Bb7 Bd4 Kd7 e8R Qe2 Re6 Qh5 Nce7 Ke8 Re3 Bc8 Be5 Kf8 Re1 Qe2 Rc1 Qg4 Rb3 Qd1 Rb5 Qb3+
N1B1q3/B2P1Npp/6Kb/RQP3R1/p2qn1r1/5r2/1BqkPR1p/n2b1B2 w - - 0 1 illegal: Other
bqK4B/k1bp1pBP/n1r5/2P3pN/2RQ1NB1/1P1r2R1/q1B1n1Np/4b3 w - - 0 1 illegal: No proof kernel
4NK2/Qn6/1B6/PnPN3n/4pB2/bNRp1pr1/2prqPb1/2nR1BNk w - - 0 1 illegal: No proof kernel
R1q1B2b/RP2pnPP/1Nn4R/p2Kr2p/2p1N3/r1QR3B/3r1rb1/B3k3 w - - 0 1 illegal: No proof kernel
1B3n1N/pp1b2P1/P2B1N1n/nr2nR1p/K2b3q/4Rr2/2P1QRp1/2k1B1R1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 g4 f5 Bh3 Kf7 hxg5 Bh6 g6+ Ke8 g5 Bf8 Bg4 fxg4 a4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 e5 Kb4 h5 f4 e3 g7 Ke4 a5 e2 a6 e1N d5 g3 d6 g2 f5 Qb6+ Ka4 Be6 f6 Rh6 g6 Bc4 c6 Be2 c7 Bg4 c8R Bh3 d7 Qf2 d8B Be7 f7 Bf6 f8B Nd7 Ne2 Nd3 Bd2 Nc1 Bd6 Nb3 Rc3 Qh4 Rg1 Nf8 Nf4 Na5 B8c7 Rc8 Bb8 Rc5 Rd3 Rb5 Be1 Bd7 Rh3 Rh8 Qe2+ Kd4 Nc3 e4 Rc1 e3 Ncd5 Nh6 g8R Rh7 Ra1 Rf7 g7 Be5 Ng6 Rf3 Rf1 Ke4 Rf2 Bd4 Qc4 e2 Nf6+ Ke3 Nh8 Ng6 Rc8 Nf8 Rc7 Bc8 Rc5 Bd7 Bb4 e1N Rf5 Nd3 Rg1 Ne5 Be1 Nd3 Rff1 Ke2 Rf2+ Kd1 Qe6 Kc1 Qe2 Ne5 Rg3 Rf4 Re3 Rf3
3r3K/1P2n1rN/k2pb2r/1R4p1/1P2N1pq/b3bQPR/q1Np2B1/2RR2B1 w - - 0 1 illegal: No proof kernel
RR2B3/1bN2b2/1nqn4/K5pp/1p1pq2P/NNBr1n2/k2PRP2/q1RQ4 w - - 1 2 legal: proof: c4 b5 b4 f5 e4 fxe4 Qc2 a5 Qb3 axb4 Qd1 b3 g3 e6 Na3 b4 Nb1 Bd6 Bb2 Ra5 Bc1 Bf4 gxf4 Rb5 cxb5 Kf7 Qe2 Kf8 Qd1 Ke8 a4 Ke7 h4 Kd6 b6 Kd5 f5 c5 a5 h5 a6 g5 f6 e5 a7 c4 a8R b2 b7 e3 f7 e4 f8N c3 R1a4 c2 Qg4 Qb6 Bd3 Ne7 R8a7 Nf5 Rh3 Nd6 Rf3 Qc6 Ne6 Rd8 Na3 b1B Ke2 Ba2 Bb2 c1Q Ra8 Qa1 Nc7+ Kc5 Bb1 Bf7 Kd1 e2+ Kc2 e1Q Bc3 e3 Ne2 Qh1 Nd4 e2 Re3 Qhd5 Re6 Qe4+ Kb3 e1N Qd1 Nf3 R4a7 Nb5 Ka4 d5 Re7 Nd6+ Ka5 Nd7 b8R Bb7 Bc2 Nb6 Ba4 Qg6 Re2 Qe4 Rc8 Rd7 Rab8 Rd8 Raa8 Rd7 Nab5 Kc4 Nb3 Kd3 Qg1 Kc2 Qg4 Kb1 Na3+ Ka2 Qg1 d4 Qd1 Re7 Bb5 Qh7 Ba4 Re3 Bb5 Rd3 Ba4 Qc4 Be8 Qe4 Nd5 Qb1 Bb2 Nh2 Rc6 Qa1 Nc7 Qcd5+ Rc5 Qc6 Rc1 Nf3 Bc3 Qb1 Nc4 Qb2 Na3 Qa1
BRK2N1N/B1ppr3/kP6/P1P1Q2r/2N5/B1pnNRbn/1r1pq3/6nq w - - 0 1 illegal: No proof kernel
kq2B3/1p2Np2/1qRrpQq1/nP2r1P1/2N1RK2/b1np1r2/1R1B2RP/2N5 w - - 0 1 illegal: No proof kernel
1q1r4/RN2qb1P/BRQ2ppk/b3p1N1/1P2Knr1/2B4p/1R2Pq2/R1bN4 w - - 0 1 illegal: No proof kernel
n2n3N/1P1Bp1pP/1k2N2K/r3RqQ1/npq1NbNB/4PR2/1R1r2rp/8 w - - 0 1 illegal: Other
2rK2N1/p2RPb1n/1qpqB1R1/B1BB4/N3r2k/PP5p/np1Q4/q1N2n2 w - - 0 1 illegal: No proof kernel
R1N3R1/b3p3/BR3r2/1rQq2RK/pppb1P1B/5PN1/1nk1P3/Br4qb w - - 0 1 illegal: No proof kernel
nN1q1r2/1Ppb2Q1/4NRKP/b1b2Bp1/2PRR1b1/1pr1NR2/1p6/1k2Bb2 w - - 0 1 illegal: No proof kernel
r1R3r1/4BN2/3R1NpK/bp4pB/b1npb1RP/1kqP2P1/5q2/Bb2B1Q1 w - - 0 2 illegal: No proof kernel
1k3rq1/N1NPBp1R/4pb2/1K1qNP1b/4Bp2/1pR1QN2/2b1bP2/1nn2B2 w - - 1 2 illegal: No possible last move
QBqN2Bq/2b2P1N/4p1bp/p1B5/1r2q3/P1r2qKn/p2Pk3/1RR1N2N w - - 0 1 illegal: No possible last move
B4r1k/pRRpP3/p1p2nR1/B2B1rK1/1n2q1Q1/1r1BNr2/Pqb2P2/4N3 w - - 0 1 illegal: No proof kernel
1N1Nr1n1/N1b1Qp2/1Pp3pB/K1R1Nr1k/1pb1n3/1rP2P2/R3n3/3B1Bn1 w - - 0 2 legal: proof: d4 a5 b4 e5 dxe5 h5 a4 b5 g4 hxg4 Qd4 Qf6 Qd3 Qc6 Qd5 axb4 Qd6 b3 Qd3 b4 Qd1 Qb5 axb5 Be7 Nh3 Bc5 Ng1 Bf8 Kd2 d5 e4 b2 h4 d4 h5 d3 e6 g3 c3 g2 h6 Bd6 e7 Bf5 e5 Ra6 f3 Ra3 h7 Ra7 b6 Ra5 Qe2 Rc5 Nh3 g1R Nf4 Rb5 Ne6 Rg5 Nd8 Be6 Rh5 Rg1 Ra2 Bc4 Na3 Nc6 Rf5 Rc5 Nb5 Nd4 Na7 b1N+ Ke3 Kd7 e8N Ke7 e6 d2 Nf6 d1N+ Ke4 Kf8 Bh6 Nf2+ Ke3 Rb5 Rc5 Nh3 Nd7+ Ke7 Nb8 Kf6 e7 Kg6 e8B Nd2 Qe1 Ne4 Qe2 Ra5 Ba4 c6 Bd1 Bc7 Qe1 Bd5 Kd3 Ne2 Kc2 Bc4 Qh4 Ra3 Qe7 Rg5 Kb2 Nhg1 Kc2 Ngf6 Kb2 Re8 h8N+ Kh5 Ng6 Ng8 Ne5 g6 Kc2 Ra5 Kb2 Rf5 Kc2 Ba6 Kb3 Bb5 Rd2 Ra1 Ra2 Bc4+ Ka4 Rb1 Ka5 Rb3
3N2Nb/1R2p1bk/b1ppn3/3QRrr1/3p4/NPPK2bB/3BP1NB/1r5n w - - 0 2 illegal: No possible last move
1B5N/2NRrr2/3Rq1r1/2pBPp2/1RBR1PQp/1KPq2qn/2pq4/1k2b3 w - - 0 1 illegal: No proof kernel
KN4R1/bN2N1RB/8/Q5Pb/r4pPq/n3pP1p/1NB1p1rp/1n1b1kB1 w - - 0 1 illegal: No proof kernel
1RrN2q1/Q4Rn1/r2R1Ppk/ppr3n1/N1P1B3/1Kb2N2/p2p1P1B/1b5R w - - 0 1 illegal: No proof kernel
NN3K2/5pp1/1p1r1N2/nBP1n3/1kp2R1R/b4r1q/1pPRPRBn/1Q5b w - - 0 1 illegal: No proof kernel
kb6/2R1p3/1QprNR1p/NPp5/2b3pn/BPn4B/R2q1P1R/bN1r2K1 w - - 0 1 illegal: No proof kernel
kn2b3/2B1q1b1/6pp/p2P1rQ1/2RRq1N1/1r1Np1pP/RKN3Pr/1BR5 w - - 1 2 legal: proof: d4 b5 e4 f5 a4 d5 axb5 c5 Qg4 fxg4 Ke2 Na6 Kd1 Nc7 Kd2 cxd4 Ke1 d3 Kd1 d4 Ke1 Nd5 exd5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd1 Kd7 f4 Kc7 c4 Kb8 b4 a5 h3 e5 c5 g6 b6 e4 b5 h6 f5 d2 Kc2 d1Q+ Kb2 d3 f6 g3 b7 d2 f7 Qh4 c6 Qg5 c7+ Ka7 b8R Qgh5 Na3 Be7 f8N Bd7 c8R Qg5 Nh7 Qf5 Rc4 Bc5 Nc2 Qe2 Nf6 d1R Bf4 Qe6 Bc7 Qe7 Ng4 Nf6 Nf3 Rf8 Ne1 Be8 Nd3 Nd7 Ra2 Rf5 Rd4 e3 Rc8 Rb8 b6+ Ka8 Rg1 Qf3 b7+ Ka7 Be2 Qfe4 Bf3 Ra1 Rc1 Bd6 Bd1 Be5 Bf3 Qf4 Be4 Bg7 Na3 Qf3 Rc4 Rh1 Rc1 Ra8 Nc2 Rh2 b8Q+ Ka6 Qb5+ Ka7 Qc6 Nb8 Qf6 Kb7 Qg5 Ra7 Be5 Ka8 Rcc4 Ra6 Bc7 Rc6 Rca4 Rc3 Rac4 Rb3+ Ka1 Re5 Ncb4 Ra3 Nb2 Bf7 Bb1 Qe4 N2d3 Rf5 Nc2 Be8 Kb2 Rb3+
2KB1nNN/Rq1p4/1R1Pq3/PPr1QNr1/1p6/b2k1pqB/1n2p1Rp/6R1 w - - 0 1 illegal: No possible last move
1QnBNr2/3N3b/Rn5n/1Np1pBR1/5PRp/r3kbNP/p1P4p/b6K w - - 0 2 legal: proof: e4 c5 a4 f5 d4 fxe4 d5 b5 axb5 g6 Be2 Qc7 Nf3 Qc6 dxc6 g5 h3 g4 Kd2 g3 Qg1 Kf7 Qh2 gxh2 Ra2 Ke8 Ra3 Bg7 Ra1 Bf8 Ke3 Kf7 g4 Ke6 b4 Kd5 b6 a5 c7 h5 g5 a4 b5 a3 g6 e6 g7 h4 b7 Nc6 b8Q Na7 b6 Nh6 g8R Bg7 b7 d6 Kf4 e3 Bd3 e2 Ng1 Kd4 Kf3 d5 Kg2 Be5 Rg6 Rf8 Bg5 a2 f4 Bf6 Bf5 Ke3 Na3 d4 Nb5 d3 Rb1 Ba1 Bd8 d2 Rg4 Bd7 c8N d1B Ncd6 e5 Ne8 Nc8 Rb4 Ra3 Ra4 Be6 Ra6 Bb3 Nf3 Bc4 Nfd4 Bd3 Rg1 e1N+ Kh1 Nf3 Ne2 Nd2 Rg5 Nc4 R1g4 N4b6 Ng3 Kf3 Qa8 Kf2 b8N Ke3 Nd7 B1e2 Qb8 Bd1 Be6 Bh7 Bf5 Bf3+
Q6R/b3NN1r/4r1pN/r1qNpPPn/BBk3n1/1p1R3p/2p4P/r3K2B w - - 0 2 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 d3 c5 Qd2 c4 Qe3 c3 Qe2 fxe4 Qg4 Bd7 Qf3 Bb5 Qd1 Bc4 dxc4 Ra5 Ke2 Ra6 Ke1 Ra8 a4 Kd7 f4 Kd6 g4 Kc5 g5 e5 f5 b5 a5 h5 d6 e3 d7 e2 a6 b3 a7 h4 Nh3 b4 Qd5+ Kb6 c5+ Kb5 c6+ Bc5 c7 g6 c8N c2 Ne7 b2 Nf2 h3 Ng4 Nh6 Bd2 Qa5 d8N Rh7 Nf7 Nd7 Bg2 b3 Bb4 Re8 Qa8 Nf6 Nc3+ Kc4 Bc6 Nh5 Ba4 Qc7 Rd1 b1R Ncd5 Ra1 Rg1 Bb6 Rg3 Qc5 Rd3 Ra3 Qc8 Ra1 a8B Ba7 Bb7 Ra3 Qa8 Ra2 Ng8 Re6 Nge7 Ng8 Ngh6 Ngf6 Nf4 Ra1 Bh1 Ng4 Rd8 Ra3 Nfd5 Ra2 Rd3 Ra3 Kd2 e1R Rh8 Rb1 Bc6 Ra5 Ba4 Ra1 Ke2 Ra2 Ke1 Ra1+
3BBbN1/3p1RnK/P1kP2Rp/3nBp2/pb2P2Q/p1bb4/rR6/1q2N1R1 w - - 0 1 illegal: No proof kernel
NQ1R1n2/pp5p/p4pRP/k3rB2/1R2NB1P/P2r1b1r/1r1r3R/3KnN2 w - - 0 1 illegal: Other
2Q5/K2rb3/pN1rk2n/qNp1P1p1/B3RBP1/pp5B/R1p1nP1R/1nB5 w - - 0 1 illegal: Other
b1RKb3/B5pk/2qPp3/N2pBr2/1R2PpRp/QNRp4/3PB1q1/1n4n1 w - - 0 2 illegal: No proof kernel
Kb1RRB2/2p4R/2bp4/1p1r1p2/2PQB1RN/pP1PB3/1r2k1pb/Nq2b3 w - - 2 3 legal: proof: f4 b5 g4 g5 e4 h5 a4 hxg4 a5 d6 f5 Kd7 f6 Nxf6 e5 Kc6 e6 Rh6 Be2 Nbd7 exd7 Nd5 Bf1 Nb6 axb6 Rf6 Na3 Rf3 Nb1 Rf2 c4 Kc5 h4 Kd4 b3 e5 b7 f5 b8R a5 h5 e4 h6 a4 h7 g3 h8B+ Qf6 d8R g4 Bg7 g2 Rh7 g3 Bd3 e3 Be4 e2 Na3 Bd7 d3 Rf4 Kd2 e1B+ Kc2 Be7 Bf8 Qh8 Qh5 Bf6 Qh4 Be5 Re8 Ra6 Rbd8 Rf2+ Bd2 Rc6 Rd1 Rc5 Rc1 Rd5 Nf3+ Kc5 Qg4 g1B Nh4 Kd4 Kb2 Qf6 Nc2+ Kc5+ Ka3 g2 Na1 Kd4 Kb4 a3 Ka5 Beh2 Ka6 Qh6 Bg5 Rb2 Kb7 Qh5 Qf4 Qd1 Ka8 Bgf2 Rc2 Qb1 Re2 Kc3 Re3 Kd2 Rg3+ Ke2 Rg4 Ba7 Qe5 Bb8 Qd4 Rc2 Bc1 Rb2 Be3 Bc6+
4n3/RBpnb2R/1rP1q3/B1r4Q/P2p3r/2rP1qBr/b1qNk2K/B2N1N2 w - - 0 1 illegal: No possible last move
3N1n1k/rNN5/6qB/n2BbR2/r1qqQ1Rp/P2rp3/q1b1P1BP/2q1B2K w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f3 axb4 f4 gxf4 Kf2 e5 d4 c5 g4 b5 Kg2 f5 a3 Kf7 d6 Kg7 d7 h5 d5 c4 d6 h4 g5 b3 g6 b4 Bb2 f3+ Kh3 f2 Kg2 c3 Qd5 f4 Qd4 c2 Nf3 c1Q Nfd2 f3+ Kh3 Ne7 Qd3 Ra7 Qb5 Qc4 Qa5 Nec6 Bg2 f1Q Qc5 f2 Bc1 e4 Qe3 b2 Rg1 b3 Nc3 b1Q Nb5 b2 Nb3 Na5 Nc7 Qa2 Nc5 b1Q Nb7 Rh6 Bd2 Kh8 Be1 Bg7 Qd3 e3 Qe4 Qbc2 Rc1 Be5 g7+ Kg8 Rb1 Rg6 Rb3 Rg4 Rb5 Qf6 d8N Nd7 Rc5 Nf8 d7 Q2c3 Rb5 Qg6 Rc5 Kh7 g8B+ Kh8 Bd5 Qca1 Nc6 Qd1 d8B Bf5 Bg5 Qdd3 Bh6 Qdd4 Qf4 Bc2 Qe4 Rf4 Ncd8 Rg4 Rc6 Rf4 Rf6 Rg4 Rf5 Rf4 Bd2 Qc1 Be1 f1R Bf3 Qcb3 Rg4 Qbc4 Kg2 Rh1 Bc3 Rd1 Be1 Rd3 Kh1 Qd6 Bg2 Qg6 Rfg5 Rf6 Rh5 Rb6 Rhg5 Rb4 Rf5 Ra4
5bR1/1b1q3r/q1BQp1Pr/1qRn1Nkn/b1BR3p/q3PBq1/5BNP/6K1 w - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 g5 fxg5 a5 Ba3 axb4 Bb2 Ra5 Bc1 Ra8 Kf2 f5 c4 Kf7 g4 Kg6 a4 h5 a5 b5 c5 d5 a6 d3 a7 f4 c6 e6 c7 b3 e3 d4 Bg2 b2 Ra4 d2 Bh3 f3 Ra3 h4 Kf1 f2 Bg2 b4 Ra4 d3 Na3 b1Q Nh3 b3 Nc2 b2 Nd4 Nd7 Bc6 Ndf6 Nf5 Rh6 Rd4 Bb7 c8B Qe7 Bf3 Rb8 a8B Nh5 Bd7 Rd8 Bb5 Rd7 Bc4 Ngf6 Kg2 Nd5 Nf4+ Kf7 g6+ Kf6 g7 Qa3 g8R Rdh7 Rg1 f1Q+ Kh1 Qba1 Ng2 b1Q Bb2 Qe1 Bc3 Qg3 g5+ Ke5 g6 Kf6 Re1 Qb5 Kg1 Kg5 Re2 Qaa6 Bb4 Q1a3 Bd6 Qg4 Bg3 Qf4 Bf2 Qg3 Qf1 d1B Rc2 d2 Qd3 Qa2 Rc1 Ba4 Qa3 Qab3 Qd6 Qa3 Rc3 Bc8 Bc6 d1Q+ Bf1 Qd2 Rc5 Bb7 Bc4 Qdd3 Re4 Qd4 Rf4 Qg7 Rd4 Qd7
b7/bn4Bq/N1qN4/QB3bnp/KBRrnkrP/1p3N2/1P2rbBP/4R3 w - - 0 1 illegal: No proof kernel
1rRqk2q/NrR2n1p/1K4BP/p2N1r1B/b2P4/PN1b1N1n/2Q1b3/B1b1q3 w - - 0 1 illegal: No possible last move
1n4N1/pbRb3r/B2K1q2/2Q1Bb2/2P2prR/PBq2P1n/3B3r/NR2n1bk w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 f5 d4 e5+ Ke3 h5 c3 b5 a3 b4 c6 f4+ Ke2 b3 g5 b2 c7 e3 Kd3 e2 g6 e1Q g7 h3 Nf3 h4 Nfd2 h2 Ne4 h3 Nbd2 b1B+ Qc2 Nf6 Be2 Rh7 Nb3 Ng4 Bd2 Bd7 c8R Bc5 Rc7 Qf6 g8B+ Qf7 Rg1 h1R Ra2 h2 Na1 Qe6 Rf1 Rg1 Bf7 h1B Nf6+ Kd6 d5 e4+ Kc4 Ke5 Qc1 e3 Ng8 Qf6 d6 Ke4 Rb2 Bc2 Rb1 Rg3 Bd3+ Kf3 Kd5 Kg2 Ba6 e2 Be6 Bf5 Qc2 Bb5 d7 Be3 d8B Bd7 Be7 Rgh3 Bf8 Rh2 Bg7 Qc1 Rd1 e1N Kd6 Kg1 Bh8 Bb7 f3 Nf2 Bg7 Kh1 Bh8 Qg7 Bb3 Nh3 c4 Qf7 Be5 Bg1 Qb2 Qc2 Qd4 Qc3 Qc5 Nc6 Nh6 Rg8 Rdc1 Rg4 Ng8 Ng2 Rf1 Ne1 Rf2 Nb8 Rg2 Rg5 Rg4 Qg7 Rh4 Rg4 Qb6 Qf7 Qc5 Qf6+
2Kn2q1/8/pbPq1b2/Nn1p1k1N/PQr1n1rR/4r3/3Pb1N1/nB1BB1RN w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 c5 bxc5 h5 Ba3 hxg4 Bb2 Rh7 Bc1 Rh8 Kf2 Ke7 h4 Ke6 a4 f5 c4 g5 e4 b5 e5 d5 h5 a6 c6 b4 h6 b3 c5 b2 c7 f3 Ke3 f2 Kd4 g3 h7 f4 Bh3+ g4 Qb3 f1R Ne2 f3 Na3 b1N Qb4 g2 Bb2 f2 Nc4 g1B Na5 Be7 Ng3 Rc1 Bc3 Bd7 c8B Nf6 Rh2 Re1 Nh1 Rg8 h8N Ne4 Ng6 Kf5 e6 Na3 Nf4 Re3 Ng2 f1N Rc1 Bg5 e7 Ra7 e8N Rc7 Nf6 Be6 Ra1 Qd6 Nh5 Bd7 Bb7 Bb5 Bc6 Bd8 Be8 Be2 Bb5 Bf2 Bd3 Bfh4 Bc2 Rc6 Bb1 Bb6 Ngf4 Bhd8 Bg2 g3 Rh4 Rg7 Bf3 g2 Bb2 g1Q Ng2 Rg4 Bc3 Bd3 Bd1 Be2 Bb2 Nd7 Bc3 Ne5 Bb2 Nf7 Bc3 Bg5 Bb2 Nd8 Bc3 Kg6 Bb2 Qf8 Ke5 Nb5 Bc3 Qg8 Bd4 Qf2 Nc4 Qff8 Na5 Rb3 Bg1 Ne3 Bf2 Nc2 Bg3 Re3 Be1 Rf6 c6 Rff4 Ba2 Qh6 Rc1 Na1 Bb1 Nf7+ Ke6 Bf6 Kd7 Nd8 Kc8 Kf5 Nb3 Qhf8 Na5 Qd6 Rc3 Rh3 Rf3 Rhg3 Rf1 Rc3 Rg1 Rc4 Nf2 Rf3 Nh1 Re3
1N1B1Q1q/nPpp2R1/1q1B1K2/brBB1r2/R1PnNr2/2NP1k2/5nb1/1r3b2 w - - 0 1 illegal: No possible last move, all moves rejected
1rk3q1/qp3R2/2q2prN/4b1Rb/2R1B2B/1P2NPnr/n1K1R1bP/4N1Qq w - - 0 1 illegal: No proof kernel
q2k3b/1K4pp/1R2P2B/3nNnnb/2RQ1B1P/1qq1Rr2/bN4P1/1BB1r2n w - - 0 1 illegal: Other
2N3n1/Npp3r1/Kb3b2/1rP2B1b/bP1NQB2/r1R1N3/1k1P1n1R/2bB2qb w - - 0 1 illegal: Other
1q3NkB/1B1rr2R/1b1pnBpB/3r4/5P2/1R2N2R/Q1rP1KPn/r2brb2 w - - 0 1 illegal: No proof kernel
Nn1B4/2P2pkr/pn2bRb1/2BBRP2/2b2rR1/1Nb5/PQn2R2/1qnK1b2 w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 f4 h5 d4 b5 c4 e5 g4 b4 g5 b3 c6 e3 d5 e2 c7 e4 d6 h3 g6 b2 c5 h4 g7 h2 c6 h3 Qb3 Ne7 g8R Be6 c8R Nd5 c7 Nb6 Nc3 b1B Rg4 Bg7 d7+ Kf8 Nd1 Rh7 Qb2 Bc3+ Bd2 Bd3 Ne3 Bdc4 Bg2 a6 Rh4 Kg7 Nf3 Qf6 d8B Qg6 Rf1 h1B Rd1 h2 Nd5 Ra7 Ra1 Rb7 Nd4 Qf5 Bf3 Bg2 Nb3 h1B Rf2 Bf1 Rh6 Bhg2 Rf6 Bh3 Bh1 Bg4 Rb1 Bh5 Rc1 Qg6 f5 Qg1 Rc2 Bg6 Bg2 Qh1 Rf4 Qg1 Rg4 Qh1 Kf2 e1N Be3 Na4 Ba7 Rb4 Nb6 Nd3+ Ke3 Nc1 Rf2 Qg1 Na8 Qh1 Bc5 Nb6 Bde7 Qg1 Re8 Ra4 Bd8 Qh1 Kf4 e3 Bd5 e2 Ke3 e1N Re7 Bce2 Re8 Rf4 Re7 Bc4 Re8 Bd4+ Kd2 Bc3+ Kd1 Qe4 Re7 Qb1 Re8 Nc2 Re7 Bd7 Re5 Be6
Rn1b3R/rB1n2NR/n2pK1p1/1N2n1N1/3P1PPq/5Q1r/R5qB/q1kb3q w - - 0 1 illegal: No proof kernel
k3B2R/1N5b/n1NbrpBP/4Bqb1/2p1rR2/1nPBr3/b1rQKP2/q2N4 w - - 0 1 illegal: No possible last move, all moves rejected
Nb3N1K/2q2q1P/r2B1bpn/B5Pp/1q1Qpn2/5R2/RNB1P3/r1k1r1Bb w - - 0 1 illegal: No proof kernel
rQ1q2Rn/2Pp2rB/B1p1bnpB/2KPk2n/r7/R1P1bR2/2bN1q2/4N1B1 w - - 0 1 illegal: No proof kernel
1rRR2bN/kpn2pB1/2qqB3/5Pn1/2N2rpb/1P1P3n/1N1B1q2/1K3NrQ w - - 0 1 illegal: No proof kernel
2Q3rk/1K2B1p1/1pP2Rrp/2NNn3/1R2Bq2/1N2qrP1/bP1b1nR1/3qnR2 w - - 0 1 illegal: No proof kernel
2N2n2/b3R1pr/2N2r1p/2qB1KPN/pr1B1nQR/2n1r1bP/PB5r/1kB5 w - - 0 3 legal: proof: e4 d5 c4 dxe4 f3 b5 Bd3 bxc4 Be2 Nf6 Bf1 Ng8 Ne2 e5 Ng3 e3 Ne2 e4 Ng1 Bg4 Qc2 Be6 Kd1 Bd5 Qb3 e2+ Kc2 e3 Qa4+ Nc6 Qb3 Be4+ fxe4 Nf6 Kc3 Nb8 Qd1 Ng8 Kc2 Qg5 Kc3 Qd5 Kc2 Qd8 b4 Kd7 d4 Kd6 g4 e1B h3 f5 g5 c5 b5 a5 d5 Ke5 b6 e2 b7 a4 d6 c3 Kd3 f4 d7 c4+ Kc2 h6 Na3 f3 Qd2 f2 Nb5 Qa5 d8B Nf6 Rb1 Bc5 Qd1 Rh7 Na7 Nd5 Rb4 Nf4 Bb6 Nd7 Nc8 Nf8 Bg2 f1R Bb2 Qa7 b8B+ Qc7 Qd7 Bg3 Qg4 Kd4 e5 e1R e6 Re3 e7 Ra5 e8N Rb5 Nf6 Rf2+ Kb1 Kd3 Bd5 Rh2 Nh5 c2+ Kc1 Bd4 Ne2 Qc5 B6a7 Rb6 Re1 Rf6 Be5 Qc6 Bab8 Ba7 Nd4 Qc5 Nc6 Nd7 Bbd4 Nf8 Kb2 c1N+ Kb1 Nce2 Bb2 c3 Bd4 Re7 Bc1 Re8 Bbe5 c2+ Kb2 Nc3 Re4 Qa5 Rb7 Ree6 Re7 Qc5 Bd2 c1R Bf2 Qc4 Qf5 Ng2 Rh4+ Ne4 Qg4 Qc5 Bec3 Nf4 Bfd4 Rc2+ Kb1 Re5 Bb2 Rc4 B2e3 Nc3+ Kc1 Ne4+ Kd1 Rb4 Bec1 Rf2 Ke1 Rh2+ Kf1 Kc2 Kg1 Ree6 Kf1 Ng2+ Ke2 Kb1 Kd3 Nc3 Nd6 Re1 Nc8 Ne2 Ke4 Ngf4 Ke5 Nc3+ Qe2 Rd6 Kf5 Re6 Qf3 R1e3 Qg4 Rf6+
1r1N3N/3nQp1K/1p2nPrq/3R1p1B/rP4b1/1Nb2k1n/1n1PN3/RR4Bb w - - 0 1 illegal: No proof kernel
1B2BB2/2p1bb1k/2P4p/r3r2r/QPR1Kp1N/N2n4/2NbR2P/nrqBn3 w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 g5 Bd3 gxf4 Bc4 Qd7 Bf1 Qd8 Ke2 e5 b4 f5 g4 Kf7 c4 Kg7 d4 a5 g5 f3+ Ke3 a4 g6 a3 c5 a2 d5 f2 c6 f4+ Ke2 e3 Kd3 e2 b6 e1B d6 Be6 d7 Bd2 b7 Ra5 Ke4 Na6 b8B Ne7 Bb2 Nd5 Qa4 Ne3 Nf3 Nc2 Nh4 Bf7 Na3 Be7 Be2 f1R Bd1 Ne1 Rc1 a1N Rc4 Kg8 g7 Nc5+ Kf5 Qf8 d8N e4 Ne6 e3 Nd4 e2 Ndc2 Ncd3+ Ke4 Qd8 Bc3 Qd6 Rg1 Qc5 Rg2 Rg1 Rf2 Rg5 Bf6 h6 Be5 Kh7 Bd6 Rh5 Rg2 Re8 g8B+ Kh8 Bh7 Qg1 Bf5 Qc5 Bd7 Kh7 Rd4 Qc3 Rc4 Qb2 Bc5 Qc1 Rf2 Ng2 Bd6 e1R+ Re2 Rf1 Bc5 Nge1 Bd6 Rg8 Be8 Rgg5 Bc5 Re5+ Kd4 Qb1 Qb5 Bd8 Qa4 Ng2 Bf8 Rg1 Ne3 Re1 Bb3 Be7 Bc2 Rc1 Bd1 Nge1 Nec2 Qb3 Re4 Rb1 Re2 Qb2+ Rc3 Reg5 Ke4 Qc1 Rc4 Rge5+
1R2N2q/1Rr3pP/1b2p3/B1pb2P1/k7/rn1Rn1r1/1KPNQb1R/3bnB1B w - - 0 1 illegal: No proof kernel
B2nR3/N1n2k1p/4r3/r1Qpq3/pnbRrbN1/1PB4P/NKbPn3/R5N1 w - - 0 1 illegal: No proof kernel
1rkq1BbN/5Nnp/NR3p2/4N1Rp/1n1r1PPP/3qB2n/6Qn/2K1n1bB w - - 0 1 illegal: No proof kernel
bkn2BNN/2r1pp2/2n3R1/Kp1rPB2/RN1bbP1N/1q2b3/1Pq5/1B4Qb w - - 0 3 legal: proof: c4 g5 a4 d5 cxd5 Na6 h4 gxh4 a5 Nb4 a6 Nxa6 Ra5 Nb4 Ra1 Na2 g4 Kd7 e4 c5 d4 Kc7 Kd2 a5 g5 b5 g6 h5 g7 a4 d6+ Kb8 d7 a3 d5 c4 d6 h3 Nf3 h2 Bd3 h4 Rg1 h1B Rg6 h3 Nc3 h2 Bb1 Rh5 Nh4 Nf6 g8B Bb7 Bh7 Qc8 d8N Bg7 d7 Ne8 Nd5 Nb4 Ne6 a2 d8N Nd6 Nef4 Ra7 Qg1 Ba8 Nf6 Rd5+ Kc3 Rc7 f3 Nc6 e5 Bh6 Bf5 Bg2 Be3 h1B Ng8 Qe6 Bb1 Nc8 Bf5 Na5 Kb4 c3 Bc1 c2 Bd2 c1B Nc6+ Kb7 Bb1 Qf5 Be3 Qc2 Bd2 Nb3 Be3 Nd4 Ka5 Bd2+ Nb4 Kb8 Re6 Be1 Bf5 Bf2 Nfg6 Bf4 Bd2 B4e3 Nh8 Qb3 Rg6 Nc6+ Ka6 Bd4 Bh6 Bfe3 f4 Bf3 Bf8 Be4 Bd3 N6a7 Ka5 Qc2 Rf1 Qb3 Bb1 a1Q+ Ba2 Qe1 Bb1 Qd2 Rc1 Qdd1 Rc3 Qbc2 Ra3 Qdd3 Ra2 Qdb3 Ra4 Nc6+
1R4BR/1p2qN1B/1P2Qqr1/2B3rK/r1p1rkp1/NBPP4/1b1N1nbb/4n3 w - - 0 1 illegal: No possible last move, all moves rejected
qB1Qrk2/1bNr2Np/pq4bP/6pP/1n6/2N2nP1/BR1b1BKR/N3qq2 w - - 0 1 illegal: Other
1b4qk/N1Rp2n1/Qbn1Rp2/q2P1N1b/1R1qrp2/B1rP4/KR2BP2/b5B1 w - - 0 1 illegal: No proof kernel
1b1RK3/2rrP1rN/BBp4q/qqP4p/Np4RN/B2n1b2/2Q3rP/3n1k1B w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g3 f5 g4 fxg4 Kd2 Kf7 Ke3 Kg6 Kd4 Kf5 Kd5 h5 c4 b5 a4 g5 f4 b3 a5 b2 e6 c6+ Kd4 d5 e7 g3 Kc5 Ke4 a6 d4 f5 g4 e3 d3 f6 d2 a7 g2 f7 g3 Qe2 d1Q Nf3 g1R Nh4 g2 Ra4 Nh6 Qc2+ Q1d3 Bd2 Bg4 Ba5 Bf3 Bb6 Nf5 Be2 Bg7 f8B Rh7 e8N Be5 Be7 Rd1 Rf1 Rd2 Rd1 g1R Bf1 Bf4 Bg2 Rg7 Bh1 R1g2 Bd6 Qg5 Bf8 Qh6 Nf6+ Ke5 e4 Qc3 Nh7 Ne3 Be7 Qa5 Nc3 b1Q Rb4 Rd8 Na4 Rd7 Rd2 Rc7 Rd8 Nd1 Bf8 Bg3 Be7 Kf4 e5 Qb2 e6 Na6+ Kd6 Nc5 Bf8 Rb8 a8B Nd3 Bb7 Qb3 Ba6 Rbb7 c5+ Ke3+ Rf4 Rgf7 Bg7 b4 Bb2 Rg7 Ba3 Qc4 Rg8 Qcb5 Rd8 Qg5 e7 Qh6+ Nf6 Rd7+ Ke6 Rbc7 Rg4 Rg5 Kf7 Rg7+ Ke8 Be5 Qb1 Ke2 Nh7 Kf1 Qc2 Ra7 Qa2 Bb8 Qc2 Rac7
b2Nn1R1/B1Bnn3/1Npn2p1/1pP2B2/Q3RP1b/3q1RPK/rkq2r1r/5R2 w - - 0 1 illegal: No proof kernel
B2BnB2/R2R4/np5p/Pn2q1r1/NP1p1RbP/RQN1b1n1/r4q1r/1K4k1 w - - 0 1 illegal: No proof kernel
2r1b2B/kB3PN1/1p1nB1qb/3q1Rrp/N3NNp1/1P2b1P1/1nQ1r1R1/1K1r4 w - - 0 1 illegal: No proof kernel
B2Bb2b/RRpPpr2/KpPQ2N1/B5r1/1bRqkn1n/1P4B1/1r5N/1qb5 w - - 0 1 illegal: No proof kernel
r2rR1Rn/1P3R2/2RqpK2/1pqN4/5n1p/2Bb2nP/2krP1QN/1N2b1nB w - - 0 1 illegal: No proof kernel
q4q1q/rpkP2Nb/Bbn1rR1r/3npRp1/7Q/4K1PN/4P3/2B1BBRr w - - 0 1 illegal: No possible last move
N1Rr2R1/p3PpBb/n5nR/P1N4B/1b3Pnp/5q1R/k2r1nB1/2bq1Q1K w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 h3 g5 h4 gxh4 b4 h3 e4 Ke7 f4 Ke6 Kf2 c5 a4 d5 g4 h5 b5 d4 g5 h2 Kg2 d3 a5 d2 g6 c3 g7 c2 b6 c4 b7 c3 Bb2 c1N Nf3 c2 Ra3 Bb4 Nc3 Bd6 Ne1 Qe8 Be2 Nh6 Nb5 Qc6 Nd3 Na6 b8R Bb4 Qf1 d1Q Ba1 Re8 g8R Re7 Rc3 Rd7 Rb6 h4 Bh5 Bb7 Bb2 Rad8 Nc7+ Ke7 e6 Kd6 Na8 Bc8 Nc5 Nd3 Nb3 c1B Rc5 Bb7 Bg7 Ne5 Rc4 Nf3 e5+ Kd5 Rc2 Qc3 Rc6 Qe3 Rc8 Bc6 Re2 Kc4 Nc5 Be4 Rd2+ Kc3 Rd6 Kb2 Rdc6 Ka2 Rb6 Nc7 e7 Bh7 e8B Na6 e6 Ne5 e7 Rd4 Bc6 Qc3 Rg1 h1N Bb7 Nf2 Rh1 Rd2 Rh3 Nhg4 Rh6 Qd3 Kg1 Ng6 Bg2 N4e5 Kh2 Q3e2 Kg1 Qf3 Kh2 Neg4+ Kg1 Ne4 Kh1 Nef2+
N1b2r1q/P1p1r1pK/1N4RN/2n1b1P1/6B1/R1P1b1B1/Qnqqp3/1R1N1k1b w - - 0 1 illegal: No possible last move
4qbr1/BB2B2q/1KbQpn1R/p1N4B/N2R1P2/3qq2N/Pp2Pn2/1brk4 w - - 0 1 illegal: No proof kernel
n3n2n/1pQ1rpRN/3p2BN/2n1N3/2PN4/4qrrk/1P2RP1b/1B1bBq1K w - - 0 1 illegal: No proof kernel
Q1r1NBb1/p1pb4/1R2r1P1/4r2p/1rk1N1qN/4B1n1/PbP1n3/KN2q1RB w - - 0 1 illegal: No proof kernel
1b2Qbr1/n3RNnq/Bp3bBR/1P1RBr2/3NpKb1/2p1PP1B/3kb1b1/8 w - - 0 1 illegal: No proof kernel
1Q4B1/4b1BR/1NnP3R/k2npK1p/nnp1r2r/2P1PR2/bN1qR2B/1n1n4 w - - 0 1 illegal: No proof kernel
1Nb2b1R/p4ppR/N1nP2Pn/P3B1b1/1R1KQrR1/kB1np3/2r5/3qr2B w - - 0 1 illegal: No proof kernel
4B1rK/p2nk1p1/3N1b1B/rPR3Pb/2nN2Q1/P5np/1p4r1/RqbN1RN1 w - - 0 1 illegal: No possible last move, all moves rejected
k2nRrr1/1b3Q2/NR3NN1/2pNbn1p/2Pq3p/1K5P/2PrRB1p/4q1bB w - - 0 1 illegal: Other
3r4/1Knb2QR/1R2p3/1q2BBP1/Nqr1n1pp/q6P/N2pB1Pr/Nk1Bb3 w - - 0 1 illegal: No proof kernel
qn3R2/1bBRn1N1/rr1K2B1/4B1pp/n1R3qP/1kppq1P1/3Pb2N/Q3B3 w - - 2 3 legal: proof: e4 f5 b4 fxe4 c3 a5 Bc4 axb4 Be2 Nh6 Bf1 Ng8 Ke2 b5 Nf3 e6 Rg1 b3 Ke1 b2 Rh1 b4 Ng1 b3 Nh3 Qg5 Ng1 Bb4 cxb4 Qd8 Ke2 Ke7 Ke3 Kd6 Kf4 Kd5 a4 c5 h4 h5 b5 d6 g3 g6 a5 e3 b6 e2 b7 Kc4 a6 d5 Ke5 g5 f4 d4 f5 Qe8 a7 Qf8 f6 Qe8 f7 Rh6 f8B Ne7 Nc3 b1N Ne4 b2 Kd6 e5+ Nf6 e4 Nf3 e3 Nh2 Nc3 Ra2 b1B Bb2 Be4 Qa1 Kb3 Rg1 e1Q Bd3 Bh7 Bg6 Qe2 Rc1 Na4 Rc4 Qg4 Bg7 d3 Bd4 e2 Bf2 e1Q Rac2 Qg8 Ne8 Qe3 Be1 Qh8 Rd4 c4 Be5 Bg8 Rc1 Bd5 Ng7 Bf3 Rc2 Be2 Rc1 Nd7 b8B Bb7 Bc7 Rb8 a8R c3 Rc4 Qg8 Ra5 Ra8 Rd5 Ra7 Rdd4 Qa8 Rd1 Nb8 Rb1+ Kc2 Rf4 Ra5 Rf8 Ra7 Rb6 Ra6 Rbc6 Kb3 Rd4 Ra7 Rcc4 Ra6+ Bb6 Bd1 Kc7 Rh7 Be4 Ra7 Rd7 Rh6 Ba5 Rd6 Bg6 Be2 Bb6 Ra6 Ba5 Rd5 Bb6 Rb5 Kd6 Nbc6 Bd8 Rbb6 Bc7 Nb8+
2qq4/2pNbnb1/K1Bnr3/2PR1q2/1BQp1B1p/3P2p1/N3BkP1/Nb1R3r w - - 1 3 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 Qf6 h5 Qh6 Nf3 Qxh5 Ng1 Qh2 b4 Ke7 c4 Kf6 e4 Kg5 Ke2 Kh4 Kd3 Kg3 e5 h5 e6 a5 c5 f5 Kc4 d5+ Kd4 g5 e7 f3 e8B g4 b6 f2 b5 f4 b7 f3 b6 a4 Bd3 f1Q Be2 f2 Bc6 a3 Qe1 a2 Nf3 Ne7 Nc3 Nd7 b8N Ra6 b7 Ne5 Nd7 Qh3 b8B Nf7 Ba7 Nf5+ Kd3 Be7 Nd4 N5d6 Bb6 Rh6 Ba5 h4 Rb1 a1B Nb3 Re6 Na2 Bg7 Na1 d4 Rb8 Bb7 Rd8 Rb6 Rg1 Rb1 Bb4 Bc8 Qd1 Qe1 Rh1 f1Q Qc2 Qef2 Rg1 Qf6 Qc4 Q1f4 Rd1 Kf2+ Kc2 g3 d3 Q4f5 Bf4 Rc1+ Kb3 Qhg4 Rd2 Rh1 Ka4 Ba6 Ka5 Qh3 Qd5 Bc4 Rd1 Bb3 Ka6 Bc2 Qc4 Bb1 Rh8 Bef8 Rh7 Qd8 Rh5 Be7 Rg5 Qh7 Rh5 Qhg8 Rd5 Qf5 Ka7 Qb8+ Ka6 Qgc8+ Bb7 Qd8 Bc6 Qbc8+
N1q2Q1B/pR1b3K/nBr1r3/2Br2bR/Bnp1p2N/q3P1bk/p1P2P2/2R5 w - - 0 1 illegal: No proof kernel
5rR1/1b3qrp/K1P1Bb2/ppR2rpP/P1R2B1N/2R1bqnQ/8/k2n1N1B w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 Ba6 fxg4 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 c4 Ke6 d4 b5 h4 a5 a4 g5 f4 g3 c6 g2 c7 e3 Kd3 e2 c5 Kd5 h5 e1R c6 e5 f5 e4+ Kc3 e3 f6 e2 f7 Nh6 Ra2 Na6 Nf3 g1B Rh3 Ra7 Rc2 Bb7 c8B Be3 Nh4 Ba8 Qd3 Nc5 Nd2 Bg7 f8R Qf6 Rg8 Qf3 Bg2 Rf1 Bh1 e1Q Bg4 Qf2 Be6+ Kd6 Qf5 Bf6 Rg3 Rd7 Qh3 Ne4+ Kd3 Nc3 d5 Kc5 d6 Rf7 d7 Kb4 d8R Nd1 Rd5 Nf5 Rdc5 Ra7 R2c3 Rg7 Rg2 Ng3 Rg1 Re1 Nf1 Re2 R3c4+ Kb3 Bd2 Kb2 Rc3 Nf5 Rg4 Ka1 Rgc4 Ng3 Bc1 Bd8 Bd2 Qf7 Bc1 Qg2 Bd2 Rf2 Bc1 Rf5 Bd2 Bf4 Kd4 Qf3 Bc1 Bd6 Bf4 Bf6+ Re5 Bc7 Kc5 Bd6+ Kb6 Bc5+ Ka6 Be3 Rd8 Rf8 Rec5 Rh8 Rd2 Rb8 Rd8 Rc8 Rh8 Rf8 Rg8 Bb7+
1B6/bqn3R1/1N2bp1B/QpK1P3/4Bp1k/Nn2RP2/1Pp2bR1/n1rBqr2 w - - 0 1 illegal: No proof kernel
Rn6/qp4NB/p1PKB1b1/PN2Np1b/2Q1NBr1/bP2q3/1k1rn1pq/6R1 w - - 0 1 illegal: No possible last move
3q1Bk1/2pBn3/1r3Q1p/1NRppBPr/BK3b2/b2b3P/4PnRr/3q1N1N w - - 0 1 illegal: No proof kernel
4bbK1/2pB1R1p/1rN5/2P3NR/Qn1b1rb1/Nb2P2p/q1pB1RNP/3kn3 w - - 0 1 illegal: No proof kernel
1r6/3pR1B1/nBkp4/2b4p/1Rb4N/PN1pbRQr/3P3P/RBnKqb1b w - - 0 1 illegal: No proof kernel
2N1n3/Bp1rbk2/1NP2rq1/QbpN3p/RP1r2n1/R3NRp1/2P5/1rr1K2B w - - 0 1 illegal: No possible last move, all moves rejected
n2r3K/2b5/1nrp2RB/3P1B2/1N1rn1Bq/pRppQb2/P2P1r1R/2kN2B1 w - - 0 2 illegal: No proof kernel
Qb2bN2/1b1p2p1/1Np3RB/1bR2r1P/1k2p1PN/1rn1P1n1/q3NR2/3BnK2 w - - 0 1 illegal: No proof kernel
1B6/BK2bRPb/2p1n1R1/2N2Rr1/1nB1bn1Q/2Pp3p/qk1Pp1n1/2r1B1N1 w - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 Ke2 Kf7 Ke3 Ke6 Kd4 h5 Kc5 a5 g4 d5 f4 c6 b4 h3 c3 d4 g5 h4 g6 d3 g7 a4 b6 h2 b5 e3 b7 e2 b6 e1N Ra2 h3 Na3 Rh5+ Kb4 Kd5 f5 Nd7 b8B Ng2 f6 Nc5 b7 e5 f7 e4 Qe1 e3 Qh4 e2 Ba7 Be7 b8B Rg5 f8R Bf5 Nb5 a3 Nd4 Nf6 Rf7 Nh5 Nb3 Ne6+ Nc5 Qg8 Ka5 Nhf4 Ka6 Kc4 Kb7 Bh7 Rb2 a2 Rb5 a1N Ba3 Nc2 Ra5 Nge1 Bg2 Nb4 Be4 Neg2 Rb5 Ng6 Bg3 Ng6f4 Be1 Na6 Bb4 Rf8 Ba5 Nb4 B5b6 Ra8 Bb8 Ra1 B6a7 Rc1 Nd7 Kb3 Bd5+ Kb2 Bc4 Qd8 Rbf5 Qa5 Nc5 Qa4 Nf3 Qa2 Rg1 Ne3 Rg3 h1B Ng1 Be4 Rg4 Neg2 Rg3 Rh5 Rg6 Rg5
2k2N1Q/B1q1P1p1/3rn1Rp/R1pb3B/NKPb3n/1b4B1/r1NN1pP1/1b5n w - - 0 1 illegal: No possible last move, all moves rejected
2q3b1/1Q2rB1n/r1pP1Bp1/N1K2R2/2Ppqp1b/2RP2Nq/2nB3q/k1B3N1 w - - 0 1 illegal: No proof kernel
Q3nq1b/N2b1p1P/1n2Rp2/5kqK/p1n2P2/PBnp1N2/2BB1R2/3rN1rN w - - 0 1 illegal: No proof kernel
3q1rR1/2N2R1n/Kr6/2rB3p/NbQN2rP/2p2p2/pqPrnPBk/1BB5 w - - 0 1 illegal: No proof kernel
nk1NNr2/1nN1R3/p1p2p1n/Pb3P2/p1B1bQ2/KpP3rR/b2B3q/B4N2 w - - 0 3 illegal: Other
n5k1/P2B3q/1pB3N1/4r1b1/1pqpp1bN/1n1nPp1r/NB1K1PB1/1R1Q1R2 w - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 hxg5 a5 Be3 axb4 Bd2 Bg7 Bc1 Bf8 c4 d5 g4 e5 a4 h5 e3 f5 a5 Kf7 c5 d3 a6 h4 c6 e4 a7 d2+ Ke2 h3 c7 b6 Qa4 d1N Ke1 d4 Bg2 h2 Nf3 f4 Kd2 Qd5 Nc3 Bh6 Nh4 f3 Bb2 Nc6 Rb1 Na5 Rf1 h1Q Na2 Nf6 g6+ Kg8 g5 Bg4 c8B Qc4 g7 Ne8 Bd7 Nc7 Qc2 Re8 Bc6 Kf7 g8N Re5 Ne7 Na8 g6+ Kf8 Bd7 Bg5 g7+ Kf7 Neg6 Nb3+ Ke1 Rh5 g8B+ Kg7 Bge6 Rh8 Bf5 Kg8 Bc6 Qh2 Bfd7 Rh7 Bc1 Nb2 Qe2 Nd3+ Kd1 Qf4 Bb2 Qff7 Qe1 Rh6 Qe2 Qh7 Qc2 Nbc1 Kd2 Rh5 Qd1 Rh6 Nf5 Rh3 Nfh4 Nb3+
r1q1R3/6p1/b2R1NpB/1rnN2pq/1p2NKn1/2Rbp3/1P2PQPk/RB5n w - - 2 3 illegal: Other
bb2Q3/N1PqR1B1/pRp5/PnpN1b2/1p4qr/1n5B/pPkr4/4KRNN w - - 0 1 illegal: Other
N6N/BK2p1Q1/1ppB1R1p/2PB1P2/1R2nbn1/3r1pqk/1P2qRr1/Br3b2 w - - 0 1 illegal: Other
n2KNqBr/b1rB1p2/1k1pR3/4pR2/3P1n1P/p1q3BN/2N2Prp/2QB1b2 w - - 0 1 illegal: No proof kernel
N2K2BQ/p2pB3/R2pNnb1/4R1Rb/2qN1p2/r1q4p/Pk1P2Pb/2R3rn w - - 0 1 illegal: No proof kernel
6r1/PB4pn/3N1R2/rR2pp2/p1B1r1Pb/k1nR1PB1/B1qrpQb1/2K1N3 w - - 0 1 illegal: No proof kernel
1n1R4/R2NKq2/r1Bp4/1p1P3k/1NbQBpp1/1Rbq1bP1/nP2q2p/2B4B w - - 0 1 illegal: No proof kernel
q1Bk1B2/2ppr2p/RQ4pp/8/2r1brNR/2n1nRPP/r2P4/qNK2R1N w - - 0 1 illegal: No proof kernel
5rk1/1br1q1p1/p1Bpp1Bp/N2Q1n1n/2BKP1r1/B1p1R3/3R2PP/qNR5 w - - 0 1 illegal: No proof kernel
5k2/KnPB1r1q/2N1B3/1r2Qq2/QNB2nRR/q4P2/bP3p2/3B2n1 w - - 0 1 legal: proof: d4 h5 g4 g5 gxh5 f5 a4 b5 axb5 c5 h4 cxd4 Kd2 a6 bxa6 e5 Ra3 Be7 Rf3 g4 Rf4 Bg5 hxg5 e4 Ke1 Qc7 Be3 Qd8 Kd2 Ke7 f3 Ke8 Bf2 e3+ Kd3 exf2 Kd2 Qb6 Rxf5 Qc7 Rf7 Qd8 Kd3 d5 c4 g3 e4 g2 h6 Qd6 h7 Ra7 e5 Qe7 g6 Qg5 g7 Bb7 c5 Qh6 e6 Qf6 c6 Ra8 e7 Qe6 c7 Qh6 a7 Na6 Rh4 Rb8 a8B Nf6 g8B Nh5 Ne2 g1N Rff4 Qg6+ Re4 Qf5 Be6 Rf8 Nbc3 Rf7 Na2 Bc6 Qb3 Rb5 Qa4 Bd7 Bc6 Nc5+ Kd2 d3 Kc3 d2 Kd4 Nf4 Nb4 Nb7 h8Q+ Rf8 Qe5 d1Q+ Nd3 Qc2 Nb4 Rf7 Rg4 Rc5 Bb5 Qb3 Bc4 Qa3 Bb3 Rb5 Bd1 Bc8 Rh4 Nd3 Reg4 Nf4 Nc6 Bd7 Nc1 Qh7 Bc4 Bc8 Bf5 Bd7 Nd3 Be6 Ke3 d4+ Ke4 Bd7 Ndb4 d3 Kd4 d2 Bfe6 Nd3 Bdb3 d1Q Bc2 Qb1 Bd1 Rb6 Kd5 Nf4+ Kd4 Nd8 Kc5 Qbf5 Qb5 Rb8 Qa4 Nb7+ Kb6 Bc8 Ba2 Bd7 Bec4 Be6 Ka7 Na5 Bab3 Rb5 Ba2 Nb7 Bab3 Rf6 Ba2 Kf7 e8B+ Kf8 Bd7 Rf7 Bab3 Bd5 Ba2 Be4 Bce6 Bb1 Bac4 Ba2
4r2n/Nr3R2/3B4/3kb2P/4NPb1/q1Bnp1K1/qb4BP/1B1RnQ1Q w - - 0 1 legal: proof: b4 b5 e4 d5 g4 f5 c4 fxe4 cxd5 c5 bxc5 h5 gxh5 a6 a3 b4 axb4 a5 c6 axb4 f4 Kf7 Kf2 e5 d4 g5 d6 Ke6 d7 b3 c7 e3+ Kg2 g4 Nd2 b2 Kg3 b1Q Ra4 e2 Ngf3 e1N Ne4 Ba3 Bg2 Ne7 Bd2 Qa2 Bc3 Qf8 d8B Kd5 Ra7 Ng6 Be7 Bb2 Bd6 Na6 Rb7 Bf5 c8B Rb8 Rf7 Rb7 Qe2 Nc5 Qf1 Ncd3 Rg1 Kc4 d5 Qe7 Nd4 Re8 Be6 Nh8 Nc6 Qf8 Na7 Qe7 Bb8 Qea3 Bc8 Bd7 d6 Kd5 Bc7 Be6 d7 Bf5 d8Q+ Bd7 Kh4 g3 Bd6 Bh3 Bf5 Bg4 Bh1 g2 Kg3 Qa5 Qa8 Q5a4 Qe2 Q4a3 Rf1 g1B Bg2 Bd4 Qf3 Nc2 Rd1 Nce1 Qf1 Nf3 Nd2 e4 Bg6 e3 Bf5 Nc5 Bb1 Nd3 Ne4 Nfe1 Qc8 Rb3 Qa6 Rb7 Qh1 Nf2 Qe2 Nfd3 Qef1 Be5
BnR1n1Q1/1B2bq2/NNP1Q3/2P2rp1/Q4nr1/1n1R4/P7/k1q2nQK w - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 e3 Ra3 e4 Ra8 c4 h5 g4 f5 exf5 b3 gxh5 Rh7 Na3 Rh8 f3 e5 Be3 e4 Bc1 b6 Qd3 e3 Qd1 b2 Rb1 bxc1Q Rb3 Bb7 Rc3 Be4 fxe4 Qa1 h4 Ke7 e5 g5 h6 d5 f6+ Ke6 h5 e2 Kf2 e1N h7 d4 h6 d3 f7 b5 Nf3 b4 Kg1 b3 Nd4+ Kd7 e6+ Ke7 Rh3 Kf6 e7 Ke5 e8B d2 Bg2 b2 Ne6 b1N Nc7 Kd4 Na6 Qa5 Kh1 Qc7 Qa4 d1N Bec6 Nf6 Bb7 Be7 f8Q Ne3 Qc8 Nd2 Qe6 Rf8 h8Q Nb3 h7 Qc1 Qhg8 Nf1 h8Q Nd3 Qh5 Q7f4 Qhg4 Ne8 Bgc6 Rf5 Qg1+ Qf2 Re3 Ra7 Ba8 Rd7 Bcb7 Nf4 c6 Rdd5 Re2 Rb5 c5+ Rb4 Rh3 Rc4 Rh8 Kc3 Rd2 Rd4 Rd3+ Kb2 Nc4+ Ka1 Nb6 Ng6 Rhh3 Rg4 Rd8 Nf4 Rhd3 Qd4 Rc8 Qg7 Rc7 Qg6 Rc8 Qf7
bQ1b1K2/PP3br1/N7/1k4p1/b2Bb1RP/rN2r3/bQ4N1/3BR1qN w - - 0 1 legal: proof: g4 b5 d4 d5 f4 h5 gxh5 e5 c4 exf4 cxd5 Nd7 b4 Nc5 dxc5 Nf6 Qd4 Nd7 Qd1 Nb6 cxb6 a5 Be3 axb4 Bd2 Ba6 Bc1 Bc8 Kd2 Kd7 Kd3 c5 Ke4 f5+ Ke5 g5 e4 f3 a4 f2 h4 b3 a5 f4 a6 f3 a7 c4 h6 c3 d6 Kc6 d7 b2 Ke6 b4 Kf7 b3 e5 c2 e6 Bd6 e7 Bh2 e8N Bc7 h7 Rg8 h8N Bb7 Ne2 Kb5 Qd4 Rg7+ Kf8 Rb8 Bg2 f1B Be3 c1R Rg1 f2 Nd2 b1B Ng6 b2 Nb3 Ba2 Bf3 b1B Rg4 Re1 Qb2 Ba8 Ng3 Bbe4 Bd1 Bc4 Nh1 f1B Nf4 Bf7 Bd4 Re3 Ng2 Bfd3 Rc1 Bc2 b7 Rc8 Ra1 Ba5 Rb1 Qb6 d8Q Rcc3 Qb8 Rcd3 Nf6 Rc3 Nd5 Rcd3 Nb4 Rc3 Nd2 Ba4 Nb3 Rcd3 Na6 Qc5+ Qd6 Bd8 Ra1 Qc1 Qb8 Qb1 Bf3 Qf1 Re1 Qg1 Bd1 Kc4 Nc1 Ra3 Nb3 Kb5
R2Q1rn1/1QB2Bb1/4B1Kp/2k2bBp/1R2P1Nq/4pq1N/1P5P/2r1n3 w - - 0 1 illegal: No possible last move
b2nnN1N/5p2/1PPQ4/k4p2/2n1R2p/3Pr1Q1/BNBpRN2/1nK3r1 w - - 0 1 illegal: No possible last move
1bb5/4pN1K/1pr1BQ2/1kP2R2/bN1pnp1B/P1Q1R3/2QPnQp1/8 w - - 0 1 legal: proof: f4 d5 g4 h5 b4 g5 Bh3 a5 Bf1 c5 e4 d4 Qe2 c4 Qf3 Qc7 Qb3 cxb3 gxh5 g4 Ba3 Qe5 Bc1 Qg5 fxg5 Rh6 Na3 Rd6 Nb1 Rd5 exd5 axb4 Nh3 Ra6 Ng1 Rc6 dxc6 Bf5 Bg2 Bd7 Bf1 Bc8 Kf2 f5 Kg3 b2 Kh4 g3 c4 b3 g6 b6 Kg5 g2 h4 Kd8 g7 Kc7 Kg6 Bb7 h6 Nf6 g8Q Kd6 c7 Kc5 c8Q+ Nc6 h5 Ba6 h7 Bb7 h8Q Ba6 h6 Nh5 h7 Bg7 Na3 b1B Rh3 b2 Qgf8 Be5 Qhf6 Bb7 h8Q Bc2 Nf3 b1R Qh7 Kb4 Ng5 Kc5 Nf7 Rb3 Re3 Bd1 Nc2 Rd3 Nb4 Bh2 Ba3 Ng3 Be2 Ne4 Bg4 Ba4 Rf1 Nc3 Qh3 Ne2 Kh7 Bc7 Qf3 Na5 Qe4 Rb3 Qc2 Bbc6 Rff3 Bb8 Qc7 Nb7 Qg3 Bcb5 Qc8+ Bc6 Qf2 Rb1 Nd5+ Rb4 Rf4 Bc7 Bh3 Bd7 Rff3 Be6 Bg4 Kc6 Rf4 Rb5 Bd6 Rc5 a3 Bd7 Rff3 Be6 Bg3 Nd6 Bh4 Ne4 Bh3 Rb5 Nb4+ Kc5 Qa6 Bb8 Qc3 Bc8 Rf4 Bc2 Qa4 Ra5 Qab3 Ra7 Qa2 Ba4 Qac2 Rd7 Rg4 f4 Rg5+ Rd5 Be6 Re5 Rf5 Rd5 Na6+ Kc6 c5 Kb5 Nb4 Rd6 Rg5 Rc6 Rh5 Bc7 Rf5 Bb8
2k1n3/Br5n/KP1P1RQq/N5R1/1Nb2b2/1n2Nnn1/P4bBq/Qr2N3 w - - 0 1 legal: proof: e4 d5 b4 f5 exf5 h5 c4 h4 cxd5 h3 Na3 b6 Qc2 Be6 Qc5 Bd7 Rb1 Bc8 b5 bxc5 Rb4 a5 gxh3 axb4 h4 Na6 h5 Nb8 Ke2 Kd7 Kd3 g5 Kc4 e5 d4 g4 h4 g3 f4 g2 h6 e4 d6 e3 d5 b3 h5 e2 h7 e1Q h6 b2 f6 b1N f5 Qe5 f7 Na6 f6 Rb8 Be3 Nc3 Nc2 Rb7 Rh5 Ne4 Nf3 g1N Nfe1 Qh2 Rg5 Nf3 Nb4 Ng3 Bg2 c6 Bg1 Nc7 Bf2 Bg7 f8R Ne8 f7 Qf6 Bd4 Kd8 d7 Qd6 Be3 Nf6 Bg1 Rg8 h8N Nh7 Ng6 Bd4 Nh4 Bf2 Nf5 Kc7 d8N Be6 Ne3 Kc8 Rg4 Rg7 Rg5 Rb6 Nb7 Qf4+ Kb3 c4+ Ka4 c5 Ka5 c3 d6 c4 Nbd3 c2 Nb4 Nf6 h7 c1N h8Q c3 Qh7 c2 Qf5 Rc6 Qg6 Rc3 Kb6 Nb3 Ka6 c1B Na5 Bc4 Rg8 Ne5 f8Q Nh7 Qff6 Rb7 Rf8 Nf3 Qd4 Rc2 Qa1 Rb2 Rf6 Rb1 Nd1 Bb6 Bc5 Qfh4 Ne3 Qh6 Bd4 Bc7 Ba7 Bb6 Nf5 Bf2 Ne3 Bd5 b6 Bg8 N3c2 Bf4 Ne3 Bc4+
5K1R/b1r4b/1B2q1r1/nBN3QN/1r1PN2P/1n3Prq/k3bn2/3RQ2N w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 g5 h4 g3 b6 g2 d6 b3 d4+ Kb4 b7 c5 d7 c4 Ke6 b2 Kf7 e5 f6 e4 f3 c3 Be2 e3 Ra3 c2 Bf1 e2 Qd3 e1Q Bf4 c1N Ra1 g4 Qe4 Kb3 Be2 g3 Ba6 Ra7 Ra4 Bc5 Bb5 Nc6 b8N Rc7 Ne2 g1R Ra8 g2 Ng3 Ba6 Nc3 b1B Qe5 Bh7 Nce4 Ka2 Qe8 Ba7 Kf8 Bb6 f7 Qc8 d8Q Qh3 Qg5 Ba7 Nd7 Na5 Ndf6 Ncb3 Nfh5 Qe2 Qee7 Rb1 Re1 g1R Nh1 Rg3 Rd1 Qc4 Qb4 Qce6 Qe1 Rb2 Bd6 Rbg2 Bc5 Nf6+ Kg7 Rb8 Bb6 Rbb7 Rh8 Ng4 Kf8 Rg1 Bc6 Be2 Bb5 Qf5 Ke8 R1g2 f8N Nf2 Nd7 Qe6+ Kf8 Rg1 Ndc5 R1g2 Qd8 Rg6 Qg5 Rg3 Nd7 Rc4 Ndc5 Rb4 Nd3 Rbg7 Ndc5 Rc7
R2Qb1n1/5b1b/3q1Q2/KN1nr1NB/nBq1P2P/2R2Pk1/1R3n2/1r1R2b1 w - - 0 1 legal: proof: a4 b5 axb5 d5 c4 e5 cxd5 e4 f3 exf3 e3 f2+ Ke2 Qf6 Na3 Qe7 Nb1 Qd8 Nh3 f5 Nc3 h5 Qa4 f4 Ng1 f3+ Kd1 Qf6 Qg4 hxg4 Bd3 f1B Nb1 f2 Na3 Bb4 Nb1 Qf3+ gxf3 Bf8 Kc2 Ke7 Kc3 Kd6 Kb4 Ke5+ d6 c5+ Ka5 g5 h4 g3 b4 c4 d7 c3 d8R g2 b6 g4 b7 g3 e4 Kf4 b5 c2 b6 Na6 b8Q+ Nc7 b7 Bf5 Rc8 Rh5 Nc3 Bc5 Ba3 c1Q Nb1 Qc4 Ra2 Bh7 Bb2 Re5 Be2 Nd5 Qc7 Rb8 Bd1 Be2 d4 f1B Ba4 Bd1 Ra1 Bb3 Be8 Ba4 Bg6 Be8 Bc3 a6 Bb4 Bf7 Ka4 a5 Ka3 a4 Qb6 Be2 Nc3 Bf1 Kb2 a3+ Kc2 a2 Bh5 Bd3+ Kb2 Bc2 Ka3 Ba4 Qd8 Bae8 Nb5 Ba7 Ka4 Bb6 Rd1 a1N Rh2 Nb3 Rc5 Ba7 Rc7 Nc5+ Ka5 Na4 Qf6+ Ke3 Nh3 g1Q Rc8 g2 Ng5 Kf2 Rc5 Kg3 Rc8 Nc7 d5 Qgd4 d6 g1N d7 Qd6 d8Q Nd5 Rb2 Nh3 Rc7 Bg1 Rc6 Rc8 b8R Nf2 Ra8 Rb8 Rc7 Qe2 Rcc1 Qc4 Rc3 Rc8 Rd4 Qa2 Ra3 Rc1 Rc3 Qc4 Rd1 Rb1
6Q1/q2bR1r1/R2qr1P1/8/R1PqNn1n/Q1N1q2B/KB1q1qRP/r4k2 w - - 0 1 legal: proof: d4 b5 g4 f5 f4 h5 a4 c5 axb5 cxd4 e4 g5 exf5 Bh6 Nc3 hxg4 Nb1 g3 Ra2 g4 Ra1 Bg5 fxg5 Qb6 Bg2 Qc7 Bf1 Qd8 Kd2 Kf7 b4 a5 c4 e5 Kc2 d5 Kb2 d3 g6+ Kf6 b6 d4 b5 a4 b7 g2 b6 g3 Qg4 d2 Ka3 d1Q Nh3 g1Q Kb2 g2 Ka3 d3 Nd2 e4 Qh5 Ke5 f6+ Kd4 f7 Ke3 f8R Qf2 Rf5 g1Q Bg2 Nd7 b8R Ne5 b7 Ra6 Qg4 Nf3 Ka2 Ke2 Rf6 a3 Kb1 a2+ Kb2 e3 Nb1 d2 Re6 Rh7 Qh5 Rg7 Qa5 Nh4 Ng5 Qd6 Qa3 Nf6 Ra8 Bd7 b8Q Nd5 Ne4 Nf4 Bh3 Ke1 Nbc3 e2 Qd8 Qa4 Qe8 d1Q Re7 Q1d4 Qg8 Qad1 Ra7 Q1d2+ Kb3 Rc6 Ra4 Qa7 Ra6 Qfd4 Ra4 Qf1 Rg1 Ra6 Rb1 a1R Rg2 Qff2 Rb2 Qfe3 Ra2 Kf1 Bb2 Rc6 Ra6 e1Q Ra4 Q1f2 Ra6 Re1 Ra4 Ra6 Ra1 Ra5 Ka2 Re5 Ra6 Re6 Kb3 Nd5 Qb4 Rc1 R1a4 Rb1 Ka2 Nf4 Qa3 Ra1+
Nb5Q/3P1q1r/bbq2bB1/kB5P/N3bN2/2r1n1r1/1N1rKRP1/4QR2 w - - 0 1 illegal: No proof kernel
B1KrkN1r/2b1b1B1/1R6/1Pr3PR/1R1bb3/1Q1qPq1b/7N/q1RQ2q1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Bd2 g5 Be3 f4 Bc1 Ne7 h3 Nf5 gxf5 Nc6 h4 g4 Qd3 Ne5 Qd2 Nf7 Qd1 Ng5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kd2 h5 Kd3 d5 c4 a5 b4 g3 f6 h4 b6 a4 c5 h3 e3 f2 b7 a3 b8Q g2 b5 h2 c6 f3 c7 a2 Ne2 g1B Bg2 f1Q Bb2 f2 Nd2 Bh3 c8R Be7 Rac1 a1B R8c4 Qe1 Ra4 f1Q Rb4 Qf3 Nf1 Qef2 Qb6 Rc8 Qe6 Rc5 Nf4 Q2g3 Ng6 Qdd6 Kd2 d3 Nf8 d4 Qeb3 Bf2 Bc3 Qgg4 Bb2 Bg3 Bc3 Qd8 Bb2 Bc7 Bc3 Qff5 Ba8 Qg1 Bb2 Qdd5 Bc3 Qdf3 f7+ Kd8 Ng6 Kd7 f8R Qf6 Rf7 Ke8 Nf8 Qa6 Rf6 Qa3 Rb6 Bb2 Qe2 Qa1 Kd1 d2 Kc2 d1R Qd2 Re5 Kd3 Rf5 Kc4 d3 Qe1 d2 Bg7 Bd4 Qe2 Re1 Qed3 d1Q Qe2 Qd2 Qed1 Re2 Be4 Rf7 Kd5 Qd3 Kc6 Rc2+ Kb7 Rc5 Bd5 Rf6 Be4 Rd6 Bd5 Rd7 Kc8 Qgf2 Ba8 Qe1 Rg1 h1B Nh2 B1g2 Rh1 Qg1 Qb1 Qf7 Qb2 Be4 Qbb3 Qf3 Ng4 Bg2 Rh5 Bh3 Nh2 Rd8#
1qkN1RQn/4nN1Q/1q2nb1N/1P6/1P3r2/1B1pr1b1/1P3q2/Rr1KB2N w - - 0 1 illegal: No possible last move, all moves rejected
BN4B1/3Rb1n1/PqBR1Q2/1K2P3/3qP3/2bp4/1B2qr1Q/rNnrk2b w - - 0 1 legal: proof: d4 a5 h4 e5 g4 g5 f4 f5 b4 axb4 gxf5 c5 fxe5 cxd4 Nc3 g4 Nb1 Qg5 hxg5 Ra3 Nc3 Ra5 Nb1 Ra8 Kd2 Kf7 Kd3 h5 Kc4 d5+ Kb5 h4 c4 b3 a4 h3 f6 Kg6 f7 Kf5 g6 Ke4 e3 h2 a5 g3 c5 b2 g7 d3 c6 d2 c7 d4 Ra4 g2 Rb4 Na6 Qb3 d1R Bc4 d3 Qa3 Be7 f8Q Nh6 g8B Nc5 Qa1 Nb3 Qa4 Nf5 Qa2 Ng7 Nf3 g1B Na3 b1Q Kb6 Qc2 Qf6 Qe2 Bgf7 Rf8 Bb2 Nc1 Kb5 b6 Rb3 Bb7 c8B Bf2 Rb4 Be1 Nb1 Bc3 Be8 Ra6 Rf1 h1Q Nd4 Qh4 Nc6 Qf4 Rg1 Kf3 Bg8 Kf2 Rg6 Ke1 Nb8 Bh1 Bc6 Qd4 e4 Ra7 B8b7 Rf7 Qg5 Rf2 Ba8 Ra6 Rd6 Ra7 Ka4 Ra6 Qf6 b5+ Ka3 Ra7 Rb3 b4+ Ka4 Ra6 Ra3 b3+ Kb5 Qa7 Ra4 Qd7 Rad4 Qa7 Ba1 b2 R4d5 Qd4 Rd7 Ra7 R5d6 Rc7 a6 Rc8 Nd2 b1Q+ Bb2 Rc7 Qae6 Rc8 Qh3 Rf8 Qh2 Rc8 Bcd5 Rc4 Bdc6 Ra4 Bab7 Ra1 Ba8 Qa2 Nb1 Qf7 Rc7 Qe8 Ra7 Qd8 Rad7 Q8b6#
1n3R2/3p1b2/q2QB1Q1/P2b2PK/1nr1R1bP/3B4/1bN1Qrkn/Q4bN1 w - - 0 1 legal: proof: e4 f5 f4 a5 d4 g5 b4 axb4 Qd3 c5 dxc5 h5 exf5 h4 f6 h3 Qh7 Qa5 f5 Qd8 Bf4 gxf4 Nxh3 Na6 Ng1 Nb8 Kf2 b5 Kf3 e5 Kg4 b3 a4 f3 c4 b2 h4 b4 g3 b3 f7+ Ke7 a5 Kf6 c6 e4 c7 Ke5 f6 e3 c5 e2 c6 e1N Bb5 f2 Rh3 f1B Bd3 Bg7 f8Q Bb7 c8Q Ne7 c7 Nec6 f7 Nf3 Na3 b1B Qg6 b2 Nc2 Nb4 Ra4 Bd5 Qca6 Qf6 c8B Bba2 Bb7 b1B Qd8 Qb6 f8Q Nh2+ Kg5 Bf7 g4 Bad5 Rf3 Qb5 Qc5 Rf8 Kh5 Qc6 Qac4 Qa6 g5 Ra7 Bc6 Rc7 Qa2 Bf6 Qa3 Ba2 Qde7+ Be6 Bb7 Rcc8 Qf2 Rc4 Qg2 Bg7 Rf7 Bf6 Qe2+ Kf4 Bc6 Kg3 Qd6+ Be5 Qc1 Bb3 Qa1 Beh3 Rf4 Bb2 Ba8 Rf5 Bc6 Bf7 Bd5 Rf6 Be6 Bf5 Qe3+ Kg2 Re4 Bh3 Qe2+ Rf2 Ra2 Rc5 Ra4 Bd5 Ra3 Rc4 Rc3 Rd4 Rc8 Rc4 Rf8 Bg4+
1b1BBBbn/2pb1P2/n1bK1n2/1q3PrN/8/1PRRQQBk/3rb2N/8 w - - 0 1 illegal: Other
3bB3/N2q4/QrP1r3/1n1q2R1/Q3bp1k/1B3P2/B1NRn1KP/3nnn1B w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 a5 a4 b5 g4 e5 dxe5 hxg4 Ba3 Qb6 axb5 Qd8 Bb4 axb4 c4 Ke7 e4 d5 b6 f5 c6 g5 c5 g3 c7 g4 b7 g2 c6 f4 e6 Kf6 e5+ Kg5 e7 d4 e8B b3 e6 d3 f3 d2+ Kf2 b2 e7 g3+ Ke2 Nh6 Qb3 d1N Bg6 Qd7 e8B Nf5 Ra3 Na6 b8Q Nd6 Q8b5+ Nc5 Bgf7 Ra6 Ra2 Rb6 Qa6 Nd3 Na3 b1N Nb5 Kh4 Qba4 Be7 Bb3 Bd8 Rd2 Rh6 Na7 Nb5 Ba2 Qd5 Bb3 Be6 c8B Bf5 Be6 Be4 Ba2 Qd7 Bec4 Re6 Bcb3 Nc1+ Ke1 Qd5 Ne2 g1N Nd4 g2 Nc2 Nge2 Qd4 g1Q Qda4 Qg7 Bg2 Qgd7 Kf1 Nd3 Rg1 Nb1c3 Bh1 Ng3+ Kg2 Nce2 Re1 Nec3 Ree2 Nf1 Re3 N3f2 Red3 Ne2 Rc3 Nd3 Rc5 Qd4 Rf5 Q4d5 Rg5 Ne1+
N2BBb2/1Q2B2K/1b3N1R/qB2r2q/b1n3nk/1Qn2P2/1p1R2PP/6rb w - - 0 1 illegal: Other
1r1qN1bb/2R1r1nk/B4r1q/5RR1/3p2PP/8/1n1KP1Q1/B1R1NQqr w - - 0 1 legal: proof: d4 b5 h4 e5 a4 exd4 axb5 c5 g4 h6 Bxh6 c4 Bc1 g5 f3 c3 f4 gxf4 Nxc3 Nh6 Nb1 Ng8 b4 d5 c4 f5 b6 Kf7 c5 Kg7 b5 a5 b7 a4 b6 f3 c6 a3 c7 f4 Qc2 d3 Qd1 d2+ Kf2 a2 Nh3 d4 Bb2 Kh7 Bg2 Ne7 Na3 Nd7 b8Q Bg7 b7 Nf5 Ng1 Re8 Rc1 a1R Nb5 Nb6 Qf1 d1Q Nd6 Be6 c8R Qd2 R8c7 Re7 Ne8 Bg8 Qa7 Qe3+ Ke1 Rb8 Qa8 f2+ Kd1 Bf6 Nf3 Nc4 Ne1 f3 Kc2 Ra6 Ba1 Nb2 Rh2 Qe6 Kd2 Bh8 Rh1 Qc6 Rc5 Ng7 Rg5 Qh6 Rg1 Rc8 b8R Rf6 Rb5 Rb8 Bh1 Nd3 Rf5 Nb2 Qg2 f1R Qc6 Rf2 Qf1 Rh2 Qa8 f2 Bb7 Rh3 Ba6 Rh1 Qf3 Rh3 Q1g2 f1Q Rh1 Qg1 Qff1 Rg3 Rh3 Rgb3 Rhc3 Ra3 Rc2 Rh3 Rc1 Rh1
R2n1B2/r1NbBQ2/5R2/PKPN4/4rn1p/b2N3r/r1Nq1P2/2n1Qq1k w - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 f5 dxc5 Kf7 exf5 Ke8 g5 h6 gxh6 g6 h7 Bh6 Bb5 Bg7 Bf1 Bf8 h4 Bg7 h5 Qb6 h6 Bf8 Be2 Qd8 Bh5 gxh5 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 a4 Ke4 c6 d5+ Kc5 e5+ Kb5 d4 c4 d3 f6 b3 c7 d2 a5 b2 f7 Bd7+ Kb6 Ne7 Rh2 Ra7 Ra2 Nbc6 Ne2 Kf3 Ra4 e4 Nbc3 b1N Kb5 e3 c8N Ng6 Qe1 d1R Ne7 Nd2 Ned5 Nf4 Nc7 Ba3 f8B Nb3 c5 Rd2 N3d5 Ra2 Rg2 b6 Rg8 Qg5 Rc4 Kg2 Nd4 e2 Nc2 Kh2 Bb2 Nc1 Bf6 Kg2 Rc3 Kh2 B6e7 Nd8+ Kc4 Kg2 Re3 Kh2 Re6 Kg2 Rf6 b5+ Kd4 b4 Kc4 Nc6 Kb5 b3 Bg7 b2 Ra8 Kh2 Bgf8 b1Q+ Ncb4 Rg8 h8N h4 h7 Qa1 Ng6 Nd8+ Kc4 Qh6 Ne5 Rg3 h8Q Rh3 Qh7 Qb1 Ned3 Kg2 Qd1 e1R Qf7 Kh1 Nc2 Qg5 Rc6 Qa1 Kb5 Qh6 Qd2 Re4 Qe3 Qh5 Qd2 Qd1 Qb4 Qd4 Qc3 Qf1 Qe1 Bc8 Rd6 Qc3 Rg6 Qd2 Rf6 Bd7+
K1B2Bqr/2b1n3/1Q2nPrN/QRbp4/1P1k2P1/2rn4/1qQ2nN1/6QR w - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kd3 h5 Kc4 d5+ Kc5 a5 b4 h4 c4 a4 b6 e5+ Kb5 h3 b7 f3 c5 h2 c6 a3 g6+ Kf6 c7 a2 Kb6 f2 g7 d3 Na3 d2 Nc4 e4 Bd3 f1Q Nf3 e3 Qe1 d1N Nce5 e2 Nf7 Ra3 Nh4 Nc6 b8Q Qf2+ Kb7 Nge7 g8Q Rc3 c8Q Nd4 Ba6 Ne6 Qg1 e1N Nh6 Qb2 Ng2 Nd3 Ka8 N1f2 Qb6 Ke5 f6 Ke4 Qa5 Kd4 Qh7 Rg8 Qb8 Rg6 Bc8 Qe8 Qbb5 Qf7 Bf4 Qg8 Rc1 a1B Bd6 Ra3 Rc5 Rc3 Qbb6 Ne1 Qf1 Ned3 Rg1 h1R Qd1 Rh5 Rh1 Rgg5 Qf5 Rg6 Qg1 Rh3 Nf7 Rh8 Nh6 Ne1 Qc2 Nd3 Bf4 Nc6 Rb5+ Bc5 Nf7 Ne7 Bh6 Qb3 Bf8 Bb2 Qga1 Bc1 Nh6 Bf4 Qe1 Bc7 Qg1 Qb2
nQ1b1n2/5RBr/1qNPR2Q/7p/2Q3P1/K2NPQ1r/2q1rn1b/3kB1n1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 g3 g4 Bg2 Qg5 Be4 Qd8 Bf3 gxf3 g4 Qd7 h3 Qe7 g5 Bg4 hxg4 Qd8 b4 Kd7 d4 Kd6 Kd2 a5 Kc3 c5 Kb2 h5 b6 f5 b5 c4 e3 f2 b7 f1N g6 c3+ Ka3 f3 b6 c2 g7 f4 Qe1 a4 Nc3 f2 Nd1 f3 Qe2 Nd2 Rh4 f1Q Qc4 f2 Qc8 Qg2 Qc3 f1R Nh3 Be7 Nb2 Rh7 Ng5 Rf3 Ne6 Nf6 g8Q Nfe4 Rh2 Rh3 Qc4 Nf2 Qg5 Nd7 Nd3 Nf8 Bb2 c1N Qh6 Ne2 b8Q+ Qc7 b7 Bd8 Qc8 Ng1 b8Q Ra5 Qbb7 Qb6 Qf7 Rc5 Qf3 Rb5 Bc3 Rb1 Rh1 Re1 Rb1 Re2 Qb8+ Ke7 d6+ Kd7 Ka2 a3 d5 Qh2 Bg7 Qg2 Qc2 Nc4 Nd4 Qh2 Rb5 Qg2 Kb3 a2 Nc6 a1B Ka2 Be5 Ra5 Qb5 Ra6 Nb6 Ka3 Na8 Qc4 Qb6 Rh2 Qf1 Rh1 Qd1 Rh2 Bf4 Rg2 Qc2 Rh2 Ke8 d7+ Kf7 Rg2 Bf6 d8B Bh2 Qhf4 Kg6 Be7 Bg5 Bb4 Bd8 Qfd6+ Kg5 Qh6+ Kh4 Be1 Qb7 Ncb4 Qc7 Re6 Qb6 d6 Bg3 Rh2 Be5 Qfb7 Kg3 Nc6 Kf3 Rh1 Rd2 Qf7+ Ke2 Qff6 Kd1 Qf3+ Re2 Rh2 Ne4 Rf2 Bf4 Qg3 Be5 Rf7 Nf2 Qf3 Bh2
r3b2k/BB2P1b1/3Bn3/1QNq1P1P/R1q3p1/q1n3R1/3Q1KB1/2rNq1n1 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 e4 f5 d4 e6 e5 Ke7 Qc2 Kf7 dxe6+ Ke7 d5 Ke8 Qe4 fxe4 b4 c5 f4 a5 h4 g5 e7 Kf7 e8B+ Kg7 b6 e3 e6 a4 e7 a3 d6 g3 b7 g4 f5 g2 b5 a2 h5 c4 b6 c3 d7 e2 Kf2 c2 Bf4 c1Q Nd2 Na6 b8B Qb1 b7 Nc5 Bfd6 Qe4 Rh3 Ne6 Ba7 Nf6 b8Q Nd5 Rg3 Qc4 Nh3 g1N Nb3 Nc3 Qb5 Rg8 Bf7 Kh8 Bg2 Bg7 Nc5 Bb7 Be8 Bc6 Bf7 Qa5 d8Q Qa3 Qda5 Rgc8 Qab4 Qa5 Qb2 Be8 Qd2 Ng5 Bfd5 Ne6 Bb7 Rc7 Rb1 a1Q Rb4 Q1a3 Ra4 Rcc8 Ke3 Qd8 Nf2 Qa5 Nd1 Qd8 Be5 Qdd5 Bd6 e1Q+ Qe2 Qcb3 Na6 Rc4 Nc5 Rb4 Be4 Qbc4 Bg2 Qf1 Qf2 Rb1 Qd2 Ra1 Nb2 Qb1 Kf2 Qbe4 Nd1 Rc1 Ra5 Qee5 Ra4 Qe1+
n2bRQ2/1Kn1P1B1/1P1Q2B1/2p2b2/r5r1/P2rR1bN/k2q2NB/3qBb2 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 gxh5 Rh7 Kf2 Rh6 Ke1 Rh8 b4 a5 b5 Ra6 Qb3 Ra7 Qb4 Ra8 Na3 axb4 Nc4 Na6 Na5 Nb8 Nxb7 Be6 Nf3 Bf5 Ng1 Bc8 Kf2 Kd7 Kf3 g5 Ke4 c5 d4 f6 h4 g4 d6 Ke6 d7 g3 h6 f3 d5+ Kf7 h7 b3 b6 f2 a3 b2 d6 Ke6 h5 b1R h6 g2 Bd2 Rc1 Be1 Ne7 Na5 Nd5 Rh3 Rb1 Nc4 Rb3 Ne3 Rg8 h8Q Nc7 h7 Be7 Rc1 Rg5 Qf8 Rd3 h8B Nba6 Bg7 Ra7 Rf3 Na8 Nh3 g1B Ng2 Bh2 Re3 N6c7 Rb1 Bg3 Rd1 Qe8 d8Q Qd7 Rc1 Ra4+ Rc4 Qb5 d7 Qa5 Rd4 Qd2 Rb4 Ne8 Qc7 Rg6 d8B Rg4+ Qf4 Bd7 Bc7 Bd8 Bb8 Nec7 Qd6+ Kf7 Rd4 f5+ Ke5 Ne8 Kd5 Be6+ Kc6 Nec7 Qh6 f4 Rde4 f3 Kb7 Bf5 Re8 Qa5 Ngf4 Qd2 Bg2 f1B Qh8 f2 Be4 Bdh4 Ng2 Bg5 Qd4 Be7 Qf8+ Ke6 Qd8 Rd6 Bb1+ Kd5 Qd7 Kc4 Bc2 Be6 Bg6 Rd3 Qd6 Kb3 Re5 Rgd4 e4 Bf5 Re6 Bd8 e5 Ka2 R6e7 Be2 e6 f1Q Rf7 Re4 e7 Rec4 Rf6 Rg4 Re6 Qg1 Re3 Bf1 Qd7 Nd5 Bf4 Ndc7 Qd6 Bf2 Bh2 Bg3 Re5 Qd4 Re4 Qa1 Re3 Qad1
nN3N1k/Q2P2R1/1PKP4/4QQ1q/5qQ1/n2n1bR1/3Bpr2/r1nBr1q1 w - - 0 1 illegal: No possible last move, all moves rejected
QbR2Q2/2b1B2b/r1K1BRNR/5NbP/bqP1R3/7P/2rp1knb/4r3 w - - 0 1 illegal: No possible last move
4rq1N/k1nN3r/2b3K1/1r3N1b/1Q1rPNPp/BbP5/1QRRb3/r2B4 w - - 0 1 illegal: No possible last move
6K1/2qp1b2/1nQrP1b1/qR1P1NBN/5BbR/2Q2NP1/1b2q1kb/2Nq4 w - - 0 1 legal: proof: g4 b5 c4 g5 cxb5 e5 b4 a5 a4 e4 f4 gxf4 b6 Ra7 b5 Bb4 b7 Ra6 Bg2 Bf8 Bf3 Rh6 Qc2 Rh3 Qd1 Rg3 hxg3 exf3 b6 Nc6 Bb2 Na7 Bc1 Nb5 axb5 a4 Kf2 Ke7 b8N Kd6 d4 Kd5 e3 Ke4 g5 h5 g6 c5 b7 f5 d5 c4 b6 h4 g7 h3 Ra3 c3 Rh2 c2 Bb2 c1B Bc3 Ne7 g8Q Bb2 Qg7 Qc7 Bd4 Rh6 Rc3 a3 Bf6 a2 Na6 a1Q b8N Qa5 Nb4 Ba6 b7 Nc8 N8c6 Bd3 b8B Bc5 Nd4 Nb6 Bg5 Rd6 Rb3 Bc2 Rh1 h2 Qc1 Bd1 Nh3 Bc2 Rf1 h1B Nd3 Bd1 Rb5 Be2 Kg1 f2+ Kh2 Bhf3 Rh1 f1B Qh6 Bd1 Qc3 Bh5 Nc1 f3 Nf4 Bd3 Kh3 f2 Kh4 Be8 Nh5 f4 Nf5 Kf3 e4 f1Q e5 Kg2 Nd2 Bg4 Nf3 Qe2 e6 Bc2 Qhh8 Bd4 Qc6 Bg1 Qhc3 Bb1 Bh6 Bc2 Kg5 Bh2 Kf6 Bb1 Kg7 Qd1 Ng5 f3 Kg8 f2 Nf3 f1Q Bd2 Qfe2 Bg5 Bg1 Rh4 Bd3 Ne7 Bdg6 Nf5 Bh2 Ba7 Na8 Bae3 Nb6 Bef4 Bef7+
nnn1N3/Q1Q2R2/1r1RKB1p/rQ4P1/2QP1P2/3qn3/3nrn2/2Nq1B1k w - - 0 1 legal: proof: c4 b5 f4 f5 a4 d5 axb5 dxc4 e4 fxe4 g3 Qd7 f5 Qd8 Ke2 g5 Kf2 g4 Ke1 Be6 Ra3 Bf7 Ra1 Bh6 h3 Bf4 gxf4 g3 Nc3 Bh5 Nb1 Bg4 hxg4 Qd6 Ra3 Qd4 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 b4 e5+ Ke3 Kd5 f6 c5 f7 c3 f8Q h6 g5 g2 b6 c4 b7 a4 d3 c2 b5 a3 b6 a2 Qe8 c3 Nh3 g1N Qeh5 Ra5 Qd2 Ne2 Ng1 Nd4 Qdh2 Ne6 Na3 Nc7 Qg2 Na8 Qd2 Ne7 Bg2 Nc8 Bb2 c1Q Bf1 c2 Qh3 Qd1 Qf5 c1N Qe2 Nb3 Nb5 Nd2 Nd6 Qd7 Rc1 a1N Rc7 Rh7 Ne8 Nc2+ Kf2 e3+ Kg3 Rf7 Kg4 Rf6 Rh3 Qb5 Rf7 Qb3 Qh7 e4 Qg8 Rg6 Kf5 Qc3 Qf2 e2 Rh1 e1N Ne2 e3 Nc1 Qb3 Bf6 e2 Qe3 Qa3 Qe7 Qb3 Qc7 Qb1 d4 Nd3 Rh2 e1R Re2 Qb5 Re6 Re2 Rc6 Nf2 Re6 Na6 b8Q Qb1 Qba7 Nb8 b7 Qb3 Bd8 Qa3 Ra6 Rb6 Bf6 Ne3+ Kg6 Rbb5 Rd6+ Ke4 Kg7 Kf3 Kf8 Nc6 b8Q Qd3 Qbb7 Rb4 Qb5 Nb8 Kg7 Kg3 Kf8 Kh2 Kg7 Rb2 Kf8 Ncb6 Ke7 Nc8+ Ke6 Kh1 Qg6 Qc3 Qc2 Qd3 Q2c4 Rb3 Qe5 Rb7 Qeb5 Rb6
1q3R1R/P1p3N1/NPrq2q1/P2qQ1b1/N2Bb1k1/1q6/7q/QBrr1N1K w - - 0 1 illegal: No possible last move
3qk1b1/1qbrr3/2Pn1q1P/1p2np1R/1Q3P2/4R3/1B1B3Q/r1NNRR1K w - - 0 1 legal: proof: d4 e5 a4 Ba3 a5 Bf8 b4 b5 axb6 c6 b5 cxb5 dxe5 h5 g4 a6 gxh5 a5 Bh3 a4 Be6 Nh6 Ba2 Ng8 Bb3 axb3 Kf1 d5 Kg2 g5 e4 f5 c4 g4 h4 b2 c5 d4 c6 g3 h6 d3 e6 d2 e5 Bb7 e7 Na6 h7 Rb8 h5 Nb4 h6 Bc8 b7 Be6 Nc3 b1Q Qb3 d1R Bd2 Ra8 b8Q Nf6 Rh5 Bg8 Nge2 Ne4 Nc1 Nd3 Qb4 Qb2 f3 Re1 Nd1 Nd6 Rb1 Re3 Kh1 Ra1 Qc7 Qd4 Qb8 Qb6 Qc7 Qb7 Qb8 Kf7 e8R Bg7 Re7+ Kf8 e6 Be5 f4 Re4 Qa8 Re3 Qa2 Re2 Rg7 Ke8 Rgg5 Qf6 e7 Re3 Rh3 Re4 Rgh5 g2+ Kh2 Rd4 Re3 g1Q+ Kh3 Qgg6 Kh2 Qgg5 Kh1 Nc4 Re1 Rd7 Rf1 Bc7 Qab2 Kf7 e8R Nd6 Re3 Ne5 Qa2+ Ke8 Qc2 Be6 Qa2 Rg8 h8B Rgg7 Rfe1 Qd8 Qc2 Rge7 Bg7 Nd3 Bb2 Qf6 Rf1 Nf7 Nf2 Nd6 Be1 Bb8 Na2 Qbc7 Rd1 Nb7 Nc1 Bg8 Qe2 Ne5 Bd2 Qb6 Rde1 Bc7 Nd1 Nd6 Qh2 Qb7
1nK1q1rQ/br2Pb2/1RQ5/1n1PQ1Br/1Q1Rp1p1/1N4Nn/kBq1P3/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 d5 c4 hxg4 cxd5 e4 Ra2 Qe7 Ra1 Qe5 fxe5 Rh4 Qc2 Rh5 Qd1 Rh8 Kf2 Ke7 Ke3 g5 Kd4 f5 Kc5 a5 h4 a4 b4 a3 d4 g3 e6 a2 b6 g2 d6+ Kf6 h5 c6 d5 Ke5 h6 f4 b7 f3 Kb6 f2 Kc7 c5 b5 c4 d7 c3 d8B c2 h7 Bb4 b6 Ne7 Rh6 Bd7 Nh3 g1N Nf4 Be8 Nd2 Kd4 Nh5 Kc3 Bh3 f1Q Ng3 Nec6 Nb3 Bc5 Kc8 Bf7 Bb2+ Kc4 Qe1 Nd4 Rd1 a1R Bg4 c1Q Bh5 Rg8 h8Q g4 Bg6 Rg7 Bg5 Nb5 e7 Nh3 Rd2 Qc2 Qc1 Rh7 Qe5 Rb1 Rd1 Bg8 Be8 Qf8 Rd3 Bf7 Rd2 Nd7+ b8Q Bg1 b7 Ba7 Rb6 Rh5 Qg1 Kb4+ Qc5+ Ka4 Qc6 Kb4 Bc3+ Ka3 Bb2+ Ka2 Qh8 Nc5 Rd4 Na6 Kd7 Bg6 Qbe5 Bf7 Bc3 Rc8 b8Q Rb2 Qbd6 Rb8 Qdc5 Rb7+ Kc8 Nb8 Qc4 Rb1 Bb2 Rf1 Bgc1 Rff5 Bh6 Rfg5 Qb4 Rg8 Bg5 Qxe8+
4nb2/B3p1Qr/2p1P3/Q3RP1q/1bR2N1R/r2nB3/k3P1N1/rR1n1K1q w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 f6 g4 Bf5 h4 Bc2 Bh3 Be4 d3 gxh4 dxe4 f5 g5 Kd7 Bg4 fxg4 Ra6 Ke8 Ra3 Bg7 Ra1 Bf8 b4 Kf7 f4 a5 b6 h5 e5 a4 b5 c6 b7 a3 b6 g3 d6 Ke6 d7 g2 g6 h3 g7 h2 Nf3 g1B Qa4 Kd5 f5 h4 e6 h3 Nh4 a2 Be3 Rh7 Kf1 Na6 b8B Qe8 b7 Qh5 Qa5+ Kc4 d8R Kb3 Ng2 Nf6 g8Q Nb4 Qg7 Ne8 Bba7 Nd3 Nc3 Bf2 Rd6 Be1 Rc1 a1R Nd5 Bb4 b8R Ra3 Rc4 Ka2 Rg1 h1N Rb5 h2 Ndf4 Nhf2 Re5 h1Q Rd8 Be1 Rb8 Nd1 Rbb4 Rb8 Ra4 Rb1 Rab4 Ra1 Rb1 Q1h4 Rh1 Bb4 Rh2 Q4g4 Rh4 Qh3 Rd4 Qh2 Rc4 Qh1+
1q6/2pbk1P1/1R4rR/p3nn1P/1NR1KQq1/1b3r1N/1BR2Pr1/Q2B2b1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 Nh6 c4 Ng8 cxd5 Bb7 Bc4 Ba6 Bf1 Bc8 g4 h6 b4 Rh7 Qf3 Rh8 Qh3 Bb7 h5 Ba6 Qh4 Bc8 Bc4 gxh4 g5 Rh7 g6 Nc6 Bf1 Nb8 Ra3 Rh8 Rg3 Nf6 Rg2 Ng8 Rg5 hxg5 Ke2 a5 Ke3 e5 d4 h3 b6 e4 b7 h2 g7 g4 f6 g3 d6 g2 d5 Bh3 f7+ Kd7 b5 Nf6 b6 Be7 f8Q Nh7 Bb2 Nc6 b8R Ng5 b7 Rh6 Be2 Ne5 Na3 Ngf7 Nc2 Rg6 Bd1 Nh6 Nb4 Nf5+ Kf4 e3 Ke4 Bg4 Nh3 g1R Rc8 e2 b8R Ra6 Rb6 Rg2 Rf1 h1B Qf7 Nh4 Qf4 Nf5 Rg1 Ke8 d7+ Kf7 Ra8 Qb8 d8Q Bd6 Qe8+ Kf6 Qa4 Ke7 Qa1 Rf6 Ra7 Rf7 Rab7 Rf8 Rc6 Rf7 Rc4 e1Q+ Qe3 Qc3 Qf4 Qg3 Rb5 Rc6 Rb6 Rf6 Re1 Rg6 Rc2 Rc3 Ree2 Rf3 Rc4 Nh4 Rec2 Bd7 Nd3 Nf5 Nb4 Kf7 Ba3 Qg4 Bb2 Be7 d6 Bh4 Rc1 Bg3 R1c3 Bh2 Rc2 Be6 d7 Bg1 d8R Bd7 Rc8 Ke7 Rh8 Rfg3 Kd5 Rh2+ Re4 Bf3 Rh7 Rhg2 Rh6 Be2 Rd4 Bc4+ Ke4 Bb3 Rdc4 Rf3
R1n2b2/pp5b/P1N5/1rPQq2k/R4b1q/3PqKQ1/1N2BQn1/4B1Qr w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 d4 Ba3 d3 cxd3 Bh3 Bc1 Bc8 Nf3 f5 exf5 e5 Ng1 e4 g4 h5 Ba3 hxg4 Ke2 e3 Bc1 exd2 f4 Kf7 h4 g5 a4 g3 f6 Kg6 a5 g4 f5+ Kh6 h5 g2 a6 g3 f7 Qf6 Nc3 Qd8 f6 Nd7 Nf3 g1B Ne5 g2 Na4 Nb6 Nc6 Nd5 Kf3 Bf5 Be2 Nf4 Nb2 Bh2 Ra4 Ne7 Qg1 d1Q Bd2 Nc8 Be1 Kg5 h6 Kh5 h7 Qa1 Nd1 Qe5 Nb2 Rg8 h8Q+ Bh7 Qg7 Qdd4 Qg3 Rg4 Q1f2 g1Q Qe3 Bh6 f8Q Ng2 Qd8 Bf8 f7 Rg6 Qd7 Qh4 Qd5 Rg4 Qef2 Rb4 Qfd4 Rb5 Qdf2 Bd6 f8Q Rb8 Qfg8 Bf8 Qf1 Qgd4 Qgf2 Bf4 Q1g1 Ne7 Rh3 Re8 Rg3 Nc8 Rg6 Rd8 Re6 Rd6 Re8 Rh6 Qgg3 Ne7 Qe3 Rf6 Ra8 Nc8 Qf1 Rg6 Qef2 Ne3 Qgh3 Rg1 Qhh2 Ng2 Qhg3 Rh1 Q1g1 Qe3+
2b1RN2/2k1n1nq/2Br1BBp/1r1Q4/2bb4/P4PrN/2Kb1P1p/3QRB2 w - - 0 1 legal: proof: h4 f5 b4 g5 c4 gxh4 d4 f4 b5 f3 exf3 c5 dxc5 d5 cxd5 a6 Qa4 axb5 Qd1 b4 Kd2 Kd7 g4 e5 g5 b5 g6 e4 d6 h3 a3 h6 g7 e3+ Kc2 e2 Qd5 e1B Bc4 b3+ Kd3 h2 Bg5 b4 Nd2 b2 Kc2 b1R Bf1 Nc6 Nb3 Qe7 Nh3 Ra6 Nd4 Nf6 g8B Bg7 Ne6 Bd2 Bh7 Rg8 Bg6 Ne8 Bf6 Qf7 Rg1 Ne7 Nf8+ Kd8 d7 Rd6 c6 Kc7 Rg2 Bh8 Rg4 Qh7 Re4 Ng7 Re2 Rb3 Rae1 Rb1 Kd3 b3 d8Q+ Kb8 Qd7 b2 Re5 Ngf5 Kc2 Ng7 Qf5 Kc7 Qfd3 Rd1 Qe2 Ra1 Qd1 b1B+ Kb3 Ba2+ Kc2 Bc4 R5e3 Kb6 c7 Rb1 R3e2 Rb5 Re3 Bb7 c8B Kc7 Bd7 Bc8 Bc6 Nh5 Bgd3 Rg3 Bg6 Ng7 Re4 Nef5 Re8 Ne7 Bg5 Nh5 Bh4 Bd4 Bf6 Ng7
5RQQ/b2Nn2P/1pk1N1n1/B1B5/2P2qp1/n3Rb1P/1R1n1K2/r3rbR1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 h5 g4 Ra6 gxh5 Ra8 a3 Nc6 Bc4 Nb8 Ba2 b3 Bh6 bxa2 Bg5 Qb6 Bc1 Qd8 f4 g5 c4 d5 h3 Kd7 h6 e5 f6 b6 c6+ Kc7 f5 g4 f7 e4 a4 e3 a5 d4 h7 e2 f6 d3 a6 d2+ Kf2 e1N a7 Bf5 Ne2 Qe8 Nbc3 Ne7 Na4 Bg7 f8R Nc2 f7 Ng6 Rg1 Qe4 Rb1 a1N Nc5 Nb3 Rb2 Be5 Nd7 Na3 Nd4 Qf4+ Qf3 d1B Bd2 Rg8 Ba5 Nd2 Ne6+ Kd6 c7 Bd3 c8Q Nc6 Re8 Bf1 f8B+ Nce7 Qd8 Qd4+ Qe3 Kc6 Qb8 Qe4 Qg5 Bf3 Qf6 Qf4 Qh8 Rg7 Qd8 Bb8 Qg8 Nf5 Bc5 Rf7 Qf6 Nfe7 Qfg7 Rf5 Q7h8 Re5 Rf8 Re1 Re8 Be5 Rf8 Rd8 a8R Bb8 Rf5 Rf8 Re5 Ba7 Re3 Rf5 Re8 Re5 Rf8 Ra1 Rc3 Ree1 Rd3 Qf5 Re3 Qf4
1R1Q1r1k/5r1P/pP1B1Pn1/qr2np1Q/BR5b/b5rR/5N2/1Kn1N2R w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 hxg4 e5 b5 axb5 Qb6 Bh6 Qc7 Bc1 Qd8 f3 f5 Bh6 Bb7 Qd2 Be4 Qd1 e6 Be3 Qf6 exf6 e5 Bh6 Bd5 Bc1 e4 Nh3 e3 Ng1 Be4 fxe4 Bc5 Be2 Bd6 Bf1 Bf8 c4 Kf7 h4 d5 b4 g5 b6 d3 c5 d2+ Ke2 d4 Kd3 e2 Kc2 e1B h5 g3 b5 g2 h6 g4 b7 g3 e5 a6 b6 Nc6 b8R Nge7 e6+ Kg8 Qh5 d1R Ra4 Ne5 c6 Rh7 c7 Rf7 c8R Kh8 h7 N7g6 Na3 d3+ Kb1 d2 Nh3 g1N e7 g2 e8Q Ne2 Qd8 g1R Rb4 Bh4 Nf2 Rg3 Rc3 Re1 Nc2 d1Q Bg2 Qd2 Bc6 Qd5 Be8 Qa5 Ba4 Rd1 Ra3 Rd5 Ne1 Rb5 Be3 Nc1 Bc5 Raa7 Rab3 Rae7 Bd6 Re8 Bc7 Bc5 Bd6 Ref8 Re3 Rg2 Reh3 Rg3 Rb2 Ba3 Rb3 Rc3 Rb4 Rg3
1B1q2b1/PR3Qpb/Q3rb2/r1p5/5PRb/1Rn2R2/1PK2B2/2NNq1nk w - - 0 1 legal: proof: e4 h5 g4 f5 exf5 a5 gxh5 a4 d4 c6 c4 a3 c5 Ra5 Qa4 Ra8 d5 Na6 Bg2 Nb8 Qa7 cxd5 c6 d4 c7 Na6 Bc6 Nb8 Qxa3 bxc6 Qa6 Rh6 Qa7 Rh8 Kd2 Kf7 f4 Kf6 a4 e5 h4 d5 a5 d3 a6 d4 h6 e4 h5 e3+ Kd1 c5 h7 d2 h6 e2+ Kc2 e1B Nc3 Be7 Qb7 Nc6 Ra3 Be6 c8Q Bh4 Nd1 Ne5 Rb3 Nf3 Ne2 Ng1 Rhh3 Bf7 Rhf3 d3+ Kc3 Rb8 Qbc7 Rb5 a7 Ra5 Qa6+ Be6 Nf2 d1Q Be3 d2 Nc1 Qe1 Nd1 Bd6 Bf2 Be5+ Kc2 Ne7 Qd7 Re8 h8R Nd5 h7 Nc3 Rg8 Re7 h8R Bd4 Rh5 Be5 Rg5 Bd4 Qe2 Bd5 Re8 Bg8 Rg4 Re6 Re7 Be5 Qa6 Bd4 Qd5 Bh7 Ne3 Bg8 Reb7 d1B+ Kd3 Be2+ Kc2 Bb5 Nd1 Be8 Qdc6 Bg6 Qe8 B6h7 R7b4 Be5 Qg6+ Ke7 f6+ Kd7 f7 Bef6 f8B Kc7 Qc4 Kc6 Qa6+ Kd5 Be7 Re5 Rb7 Re6 Bg3 Kd4 Bd6 Kd5 Bb8 Kd4 Nd3 Kd5 Qh5+ Ke4 Qf7 Re7 Nc1 Re5 Rd3 Re6 Ne3 Kf3 Nd1+ Kg2 Bf2+ Kh1 R7b4 Re8 Rb7 Re4 Rf3 Re6+
1q3bn1/PBRbB2N/2P5/1p2b2n/p6Q/q3n2q/3Q1KPr/k1N1N1RN w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 a4 b5 a5 Qb6 axb6 Bb7 Qd3 Ba6 Qd1 Bc8 b4 a5 Be3 a4 Bc1 Ra5 bxa5 Bg7 Qg4 Bh6 Qd1 Bf8 c4 Kf7 f4 Kf6 b7 e5 c5 d5 c6 h5 a6 e4 a7 e3 Qd2 e2 Kf2 e1B+ Ke2 h3 Nc3 h4 Ba3 h2 Nh3 Bg3 Nf2 h3 Na2 Bd7 Nc1 d3+ Ke1 d4 Be2 Rh7 Bg4 Rh8 Rf1 h1Q Bb4 h2 Be7+ Kf7 f6 Kg6 Bf3 Kf5 f7 Ke6 f5+ Ke5 f6 Rh6 Qb4 d2+ Ke2 d1N Qd2 Rh5 Bg4 d3+ Kf3 Qg1 Nh1 Kd4 Be6 Ne3 Bg4 Be8 Bc8 Nd7 b8Q Be5 Bb7 Rh6 Qd8 Rh4 Qd1 Kc3 Qe1+ Kb2 Qd2+ Nc2 Rd1 Qb6 Rg1 Qc7 Kf2 Qb8 Ra3 Rh7 Rb3+ Ka1 Rb2 Bh6 f8N Ne3 f7 Ndf6 Ng6 Bd7 f8N Nh5 Nh4 Rh8 Nh7 Bf8 Qc3 d2 Nf3 d1Q Ne1 Qd3 Qd2 Qa3 Rb4 Qc8 Rf4 Qa8 Rf7 Qb8 Ng3 h1Q Rg7 Qh3 Nh1 Be8 Rf7 Qb2 Qd4 Bd7 Qh4 Qa3 Bb4 Be6 Rc7 Bd7 Be7 Ng3 Qh5 Qg4 Nf6 Rh7 Qg5 Rh2 Qh4 Nh5 Nh7 Qh3
Q1n1r3/1B5P/1KQBRq2/pB6/rpqP2qR/1NP1q3/1Nkb2Bb/6q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 d5 Bh3 dxc4 Qc2 e5 fxe5 b4 Bf1 Ba6 Qd1 Bb5 axb5 c5 d3 c3 Ra4 c2 Ra3 c4 Nc3 Nc6 Ne4 c3 Ra1 Nce7 Be3 c1B Nd2 c2 Nb1 Nd5 Ra5 Nge7 Ra1 Nc3 bxc3 Ng8 Kf2 Kd7 h4 Ke6 b6 Kd5 b7 g5 b8Q a5 e6 f5 h5 f4 e7 f3 e8B Rh7 h6 Qe7 Nh3 Bg7 Bg2 Ra6 Nd2 Qf6 Nb3 Ra8 Bb5 Bd2 Bf4 c1Q Bd6 Ne7 e3 Nc8 e4+ Ke6 e5 Kf5 d4 Ke4 e6 g3+ Kf1 g4 e7 Ke3 e8B f2 Bec6 Rh8 Bb7 Re8 Ba4 Kd3 h7 Re2 Qc7 Bh6 Qc6 Bf4 Qe1 Be5 Bb5+ Kc2 Nf4 Rb8 Nd3 Qd1 Bd5 Ra8 Kg2 Qc1 Qg1 Re1 Rh4 f1Q+ Kh1 Bef4 Nb2 Qc4 Kg2 Rf1 Qh1 Qe1 Qh3 Qe3 Re1 Rh1 Re2 Ra1 Qh1 Ra4 Bf3 Qe4 Kf1 g2+ Kf2 Qeg6 Re6 Rb8 Bd5 g3+ Kf3 Qg4+ Ke4 g1Q B7a6 g2 Qb7 Nb6 Qa8 Qf2 Bab7 g1Q Qg2 Rh8 Qh1 Qc7 Bdc6 Nc8 Kd5 Be5 Kc5 Re8 Qd5 Qe3 Qc4 Qcg7 Bg2 Bh2 Qd5 Qge2 Qf3 Qg4 Qc6 Ne7 Kb6 Qc4 Ka7 Nc8+ Ka6 Ne7 Kb6 Nc8+
bB1Rr2R/K4B2/3Nq1RP/1Pp2Q2/p1R4n/Nnr5/2P1Qq1k/1r1n2r1 w - - 0 1 legal: proof: d4 b5 a4 g5 axb5 e5 dxe5 f5 e4 fxe4 h4 gxh4 g3 h3 Ke2 h2 Kd2 Kf7 Ke1 Ke8 Bd2 h5 Qg4 h4 Bc1 h3 Qf3 Be7 Qd1 Bh4 gxh4 Ba6 Nd2 Bb7 Nb1 Bc8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kc5 d5 f4 a5 b4 c6 h5 a4 e6 e3 e7 e2 e8R Kg4 b6 Kg3 h6 e1R b5 d4 b7 d3 f5 d2 f6 Qd5+ Kb6 Qe6 f7 Ne7 f8Q Na6 b8R Ng6 Bc4 Nc5 Nf3 Bb7 Qe2 d1N Nd4 Nb3 Qf5 Nh4 Red8 Re8 Na3 Rg1 Rbc8 Rb8 Ka7 Ba8 Bd5 c5 Bd2 Rb6 Ba5 Rd6 Bc7 Nf2 Rf1 Nd1 Rf4 Rd7 Bc4 Rd6 Bb8 Rd5 Nf3 Rd3 Ng5 Rc3 Bd5 Re1 Rhf1 h1R Nf7 h2 Nd6 Rg1 Rc4 h1Q Rff4 Qg2 Rg4+ Kh2 Rg6 Qe5 Be6 Qf2 Bf7 Qe6 Rd7 Re7 Rh8 Re8 Rd8 Nb2 Rf4 Rb1 Rc4 Nd1
1rNbbK2/pr3Bp1/4bRq1/Pn3QR1/2bB3P/1NP1Q3/1k1B1q2/r5B1 w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 exf4 b4 Ke7 g4 c5 bxc5 h5 d4 hxg4 c3 Nh6 c6 Kf6 d6 Nd7 cxd7 Ng8 d5 Kf5 Ba6 Ke5 Bf1 Kf6 Ke2 Ke5 Kd3 f5 Kc4 b5+ Kc5 b4 h4 b3 a4 f3 a5 b2 Nh3 f4 Rg1 g3 Ng5 f2 Qh5 f3 Ne4+ Qg5 d8B g2 Bd2 Ne7 d7 Nf5+ d6 Qg6 Bc4 f1B Bf7 f2 Bb6 Bb5 d8Q f1B Qe7+ Be6 d7 Bfc4 d8B Rb8 Nd6 Rb7 Nc8 Ke4 Ra2 Nd4 Kd6 Kd3 Qf5+ Ke2 Bc5 Be8 Bdb6 Rg8 Rf1 g1Q Rf3 Kd1 Rg3 Beb5 Rg5 Qf2 Ra1 Be8 Ra2 Nc2 Bd4 Na3 Ra1 Qe2 Bg1 Qf2 Bd4 Rh8 B2e3 Rg8 Nd2+ b1R Nb3 Rh8 Ra2 Ra1 Re2 Rg8 Bd2 Rh8 Re4 Kc2 Re1+ Kb2 Re3 B6d7+ Re6 Rg8 Rf6 Bde6 Ke5 Rh8 Qc5 Be7 Qb6 Bd8 Kd6 Bc7+ Ke7 Nb5 Qbc5 Rh5 Kf8 Bd8 Rg3 Rg5 Qce5 Rg4 Qe3 Rf4 Rg5 Rb8 Bc5 Rd4 Bb6 Rd7 Bd4 Rdb7
2Q1nN1K/5P2/P1rp1kn1/3Rr2b/QBQ3rp/2BQr2b/1r3PR1/1N4b1 w - - 0 1 legal: proof: h4 b5 d4 c5 c4 f5 e4 g5 exf5 gxh4 b4 a6 cxb5 Qa5 b6 Qa4 b5 Qc4 b7 Qd5 b6 Qc6 Bb5 axb5 Nd2 c4 Nb1 Qc5 dxc5 Ra7 Kd2 Ra3 Ke1 Ra8 Nc3 Kf7 Ke2 e5 Ke3 h5 Ke4 h3 a4 b4 g4 h4 a5 h2 a6 b3 f6 b2 Kf5 b1R c6 e4 c7 e3 g5 e2 g6+ Ke8 g7 Kf7 Nh3 e1R Rg1 h1B Ra5 Be7 Ba3 Nc6 b8B Ne5 b7 Bf3 Rg2 Bh5 Qd3 Bd6 Rd5 Re3 Nf4 Rb2 Nb1 c3 Ng6 c2 Nf8 c1R Bc5 Ng4 Bba7 Bh2 b8Q d6+ Kg5 Bd7 Qb4 Ne5 Qa4 Re8 c8Q Bg1 Bb4 Bh3 Bd4 Rc6 Bdc3 Rh6 Qg4 Rh8 Qgc4 Rh6 Nh7 Ke6 f7 Nf6 g8Q Re7 Qd8 Ne8 Qa8 Rf6 Qb7 Rf5+ Kh6 Rg5 Nf8+ Kf6 Kh7 Rg4 Qc8 Re6 Be1 Ng6 Bec3+ R6e5 Kg8 Ne7+ Kh8 Ng6+
5BQ1/p2Qb3/bn2R1r1/Pr4P1/pn1nB2r/2nP1K1N/1N5k/RNN1r3 w - - 0 1 legal: proof: b4 d5 a4 b5 h4 bxa4 e4 f5 exf5 g5 c4 gxh4 cxd5 Qd7 Qe2 Qb5 Qd1 Qa5 bxa5 Kd7 Rh2 Kd8 Rh1 Ke8 Ke2 Kd7 f4 Kd6 g4 e5 g5 h5 d3 c5 f6 h3 f7 e4 f5 Ke5 d6 e3 f6 Kf4 d7 Kg3 d8Q h2 Nh3 h4 Ba3 c4 Qd7 c3 Qd4 c2 Bb2 c1N+ Ke1 e2 Qd8 Na6 Bg2 Be7 f8N Nb3 f7 Nb4 Ng6 Rh6 f8N Rb8 Ba3 Nd4 Ne5 Ba6 Ne6 Rb5 Qd7 Nf6 Nc5 Nfd5 Qb3 Nb6 Qg8 Rg6 Rf1 h1R Nb3 Kh2 Kf2 e1R Nc1 Ndc2 Nc4 Nd4 Ng1 h3 Nb2 Re4 Re1 Rh4 Nge2 Rg1 Nf4 Rh1 Re2 Re1 Ke3 Kg1 Bd5 h2 Be4 h1N Nh3+ Kf1 Bb7 Nf2 Ba8 Ne4 Bd5 Nb3 Kf3 Nc3 Re6 Nd4+ Kg3 Nbc2 Bd6 Nb4 Be4 Bf6 Bf8 Be7 Nf2 Rh3+ Kg4 Kg1 Kf4 Rh8 Nh3+ Kh2 Kg4 Ndc2 Kf4 Rh4+ Kf3 Nd4+
k5NK/qr2rp2/1r3Q2/3Q2q1/QqPr1PR1/4b3/1Q2BPpB/br2R2N w - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 Qd3 cxd4 Be3 h5 Bd2 h4 Bc1 b6 Qd2 Bb7 Qd1 Bf3 exf3 Rh7 Bd3 Rh5 Bf1 Rh8 h3 g5 Qe2 Nf6 Qd1 Nc6 Kd2 Ne5 Ke1 Nh5 gxh5 g4 Bb2 g3 Bc1 Ng4 hxg4 Rc8 Bh6 Rb8 Bc1 Ra8 Kd2 d5 Kd3 Kd7 c4 Kc8 a4 Kb7 f4 e5 h6 b3 g5 g2 h7 b2 a5 e4+ Kd2 h3 g6 d3 Ke3 d2 Kd4 e3 Ke5 d4 g7 h2 g8Q e2 Qa4 d1Q Nd2 e1B Ne4 b1Q Ne2 d3 Bb2 b5 N2g3 d2 Qg7 b4 Nf6 b3 Ng8 Bc5 Qf6 Ra6 Be2 Rb6 a6+ Ka8 a7 Be3 Ba3 b2 Be7 Qa2 Kf5 b1R Qb2 Rb8 Kf6 Qdb3 Kg7 d1R Bh4 Rb7 Qf6 B1d2 Re1 Qbb6 Nh1 Bc3 Bg3 Qab2 Ra3 Q2b4 Rb3 Ba1 Rd3 Rb2 Rd5 Rdd2 Rg5 Rd4 Rg4 Rb3 Ne7 Re8 h8Q Qbc7 Ng8 Re7 Kh7 Qd5 Qhg7 Qg5 Kh8 Rd6 Qb2 Rbd3 Qge5 Rdb6 Qf6 Rd4 Rd1 Rb8 Rg1 Kb7 a8Q+ Kc8 Qd5 Qa7 Bh4 R8b7 Ng3 h1R Rd1 Rf1 Nh1 Kb8 Bg3 Rg1 Bh2 Ka8 Rb1 Rgd1 Rc1 R1d3 Rf1 Rd1 Re1 Rb1
R3B3/6rp/3R1QP1/2b1pb1P/q2Qq3/N1q4N/rPRR3q/kbK1r1B1 w - - 0 1 legal: proof: e4 g5 f4 b5 d4 g4 a4 Na6 axb5 c6 d5 cxd5 Nc3 dxe4 Nb1 e3 g3 f5 Qd4 Nc7 Qd3 Ne6 Qd1 Nh6 Ra6 Nf7 Ra1 Nfg5 fxg5 f4 Ne2 f3 Ng1 Nf4 gxf4 Bh6 Bd3 Bg7 Bf1 Bf8 h4 Kf7 c4 Ke6 c5 d5 c6 a5 c7 f2+ Ke2 g3 b6 d4 b7 Kd5 b8R Kc4 f5 e5 f6 a4 f7 a3 g6 d3+ Kf3 g2 h5 a2 Rh3 e2 Ke3 e1Q+ Be2 f1B Nf3 Qc3 Rh2 Rg8 Ng1 Qd5 Rb6 Rg7 Nh3 Bf5 Rd6 g1Q+ Rf2 Be7 f8Q Qh2 c8R+ Qc6 Qd2 Kb3 Qf6 Bg2 Na3 Bge4 Bg4 Qa4 Rg2 Ra7 Qf2 d2+ Ke2 d1R Qd4 Rf1 Be3 Bb1 Bg1 Qac6 Bf3 Qb7 Bc6 Re1+ Kf2 Ra4 Be8 Qe4 Rcc6 Bd8 Rc8 Bb6 Rcd8 Bc5 Ra8 Bd3 Rc1 a1Q Rc2 Ka2 Rd2 Qb1 Rc2 Ka1 Rd2 Qh4+ Kf3 Ra5 Rge2 Qd1 Ke3 Qa4 Rc2 Qcc4 Kd2 Qe4 Rc1+ Bb1 Rc2 Raa7 Rf2 Re3 Kc1 Qc3 Rd2 Re1+ Rd1 Qac6 Nc4 Ra2 Na3 Re2 Rd3 Qa4 Rd2 Re1+
1rkq4/1N1pPN1R/2NrR2b/P4b2/1KQ5/3b1P2/NQr2pBB/1bbb4 w - - 0 1 legal: proof: f4 a5 g4 c5 d4 cxd4 b4 axb4 Nh3 h5 gxh5 e5 Ng1 e4 Nh3 f5 Rg1 Ne7 Rg2 Nec6 Rg5 Ne5 Rg1 Nbc6 Rh1 Nf3+ Kf2 Kf7 Ng1 Nce5 fxe5 f4 Bb2 Nh4 Ke1 f3 Kd2 f2 Bc1 Nf3+ exf3 Ke8 a4 b5 h4 g5 c4 d3 c5 g4 e6 b3 Kc3 e3 c6 d2 c7 b2 a5 e2 h6 e1B h7 g3 e7 g2 h5 Bb7 c8N Rb8 h6 Ba6 Ne2 g1R Qa4 Kf7 Bg2 Ke6 Nd4+ Kd5 Qc2 b4+ Kb3 Rg8 h8N Rg6 Nc6 Bd3 Nc3+ Ke6 Ra4 b1B Nd6 Bf5 Qa2 Bbd3 Nhf7 Bg7 Nb7 Rf6 Kb2+ b3 Ka3 Rf1 Rc4 b2 Kb4 b1B Qc2 Rg6 Na2 Bb2 Re4+ Kd5 Na7 Rd6 Re6 Bg7 Rh5 Rh1 Bb2 Rh4+ Bd4 d1B+ Qc3 Re4 Rh1 Re3 Be5 Re2 Rh5 Bf8 Bh2 Rc2 h7 Bd2 h8Q Bc1 Rh7 Bfh6 Qhf6 Bb5 Qh4 Bf1 Qb2 B1d3 Nb5 Kc6 Na7+ Kc7 Nc6 Kc8 Qhd4 Qe8 Qc4 Qd8
1B3R2/6bb/RK2pRp1/3P1b1n/Nq1PNRq1/2q2n2/Q3Q1P1/2bq2kB w - - 0 1 illegal: Other
1n4kB/n2QRq2/4b3/QRB2PN1/p2P3r/p1r2p1N/P4bnr/1BKB4 w - - 0 1 legal: proof: f4 b5 c4 h5 g4 e5 gxh5 d5 Qa4 bxa4 cxd5 Qe7 Bh3 Qd7 Bf1 Qd8 b4 Qf6 f5 Qe7 Na3 Nc6 Rb1 Qd8 Rb2 Nb8 Rc2 Bb7 Rc4 Ba6 Rc2 Bc8 Rc4 Qf6 Rh4 Qd8 Rf4 exf4 Nf3 Qf6 Ng5 Qd6 Nxf7 Qd8 Kd1 g5 d4 c5 h4 a5 e4 c4 d6 g4 h6 c3 h7 g3 e5 g2 h5 g1R b5 f3 d7+ Ke7 h6 Bg7 b6 Kf8 b7 Na6 b8R Qg5 e6 Rg2 Nb5 Rb2 Nc7 Qh4 Nd5 Rb3 Rb5 Bf6 Ng5 Qh5 Ba3+ Ne7 Bc5 a3 Kc1 c2 Bd3 Qf7 Nf4 Nb8 Re1 Rc3 Nfh3 Be5 Be4 Bg3 Bd3 Bf2 d8Q+ Qe8 Qd6 Qf7 Qd7 Ra6 Re4 Rd6 Re5 Nec6 Re2 Na7 Re4 Rg8 h8Q a4 Qe5 Rg7 e7+ Kg8 e8B Rh7 Qd5 Rh8 Re7 Re6 Be2 Re4 Bd1 Rf4 Qe5 Rh4 Qec7 Rh7 Qa5 Rh8 Qd6 Be6 Bc6 Rh7 Be4 Rh8 Qd7 Rh7 Kd2 c1N Bec2 Ne2 Bb1 Rb3 Kc2 Nf4 Kd2 Ng2 Kc1 Rg7 Kd2 Rc3 h7+ Kf8 h8B Rgh7 Qc6 Kg8 Qd7 Rd3+ Kc1 R7h6 Ng1 Rh2 N1h3 Rh4 Nf4 Re3 Nfh3 Rc3+
1R1qKn2/5N1b/B2q2Pp/p1QB1bQ1/1BRr4/2Prp3/r1NkP3/6bB w - - 0 1 legal: proof: b4 b5 d4 a5 f4 g5 fxg5 c5 a4 cxd4 axb5 Qc7 b6 Qxh2 b5 Na6 bxa6 Bh6 Bf4 Bg7 Bc1 Bf8 Kf2 f5 Kf3 Kf7 g4 Kg6 c3 e5 b7 d5 b8Q d3 a7 d2 Qbb3 f4 Bg2 d4 Ke4 d3 Kd5 e4 Kc6 h6 Qa3 f3 Nh3 f2 Qg1 f1R Qac5 d1B Ra4 d2 Na3 Nf6 Nc2 Bf5 Rc4 Nd7 Ba3 Rd8 a8B Bg7 Qge3 Nf8 Bb7 Rd3 Bb4 Bd4 Ba6 Rh7 Rg1 Rd7 Bh1 Qb8 Qf4 Qd8 Rg2 Bg1 Qg3 Kg7 g6 Kf6 g7 R7d4 g8B Rf4 Bd5 Ke5 g5 Bh7 Na1 Bc2 g6 d1Q Ng5 Kf5 Nf7 Rg4 Qh4 Kf4 Rf2+ Ke3 Qg5+ Rf4 Rf1 Kd2 Rf3 Bb1 Nc2 e3 Rf2 Rfe4 Rf5 Re7 Re5 Rb7 Re8 Rb8 Ba3 Rb2 Bb4 Qa8+ Kd6 Ra2 Ke7 Qb8 Rd8 Qd6+ Ke8 Qe1 Qf4 Qh4 Rb8 Qhf6 Qh4 Qh8 Qg5 Qhf6 Ne5 Qfd8+ Kf7 Q8b6 Na1 Bc2 Ke8 Qbd8+ Kf7 Ba4 Nc2 Q6b6 Bdb7 Bd7 Bbd5 Qc8 Ke7 Bf5 Nf7 Qcc7+ Ke8 Qcd6 Qh4 Qbc7 Qg5 Qcd8+
1k4rq/qb6/Bp4rq/1Q4NQ/pQ4BP/pN3RnP/4KP1R/1bQ1b3 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 b6 c4 h4 a4 h3 gxh3 Rh4 d4 Nf6 c5 Rh7 b5 Na6 h4 Ng8 a5 Rh8 c6 Nc5 Be3 bxa5 b6 a4 b7 Rh5 dxc5 Rh8 Bd2 Kf7 Ba5 Ke8 Bb6 cxb6 b8Q e5 f6 a5 c7 g5 c6 d5 h3 a3 Qb7 e4 Qd4 e3 Qe5+ Ne7 Ne2 a4 Qa6 d4 Rg1 d3 Nec3 g4 Nd5 e2 Qg5 g3 Rg2 Rg8 Qh6 Nf5 Qh5+ Rg6 Qb5 Bb7 c8Q Bb4+ Nd2 Rb8 Rh2 g2 Rc1 g1Q Rc5 Qg5 Nf4 Ng3 Ne6 Qh6 f7+ Ke7 c7 Kd6 Re5 Qdh8 Ng5 Ra8 Re3 Ba5 Qcf5 Rag8 c8B Kc7 f8Q Kb8 Qf5c5 Bb4 Qc3 Ba5 Nb3 Bb4 Kd2 Ba5 Kc1 d2+ Kc2 e1Q Kd3 d1B Qc1 Bb4 Rf3 Qe7 Qff4+ Qc7 Bg4 Be1 Qfb4 Bc2+ Ke3 Bb1 Bc4 Ne4 Ke2 Ng3+ Kd1 Rf8 Qd5 Bc8 Ba6 Qa7 Qd7 Bb7 Qdb5 Nf5 Ke2 Re8+ Ne6 Reg8 Ng5 Ng3+
7b/1RQqPB1k/3B2q1/6PP/1n2n2p/1RbNQ1p1/2nN1B1p/br1KB3 w - - 0 1 illegal: No proof kernel
2Qrn1Bq/1P3B2/pqNbpQ2/Pb2P3/1N1p2qr/2k1B1R1/3R3r/2B3K1 w - - 0 1 legal: proof: d4 g5 f4 f5 fxg5 b6 h4 f4 c4 f3 gxf3 Nc6 f4 Ne5 f5 Ng6 c5 bxc5 h5 cxd4 hxg6 d3 Kf2 d5 a4 Kd7 e4 Kc6 b4 h5 g7 d2 a5 h4 g6 a6 f6 h3 b5+ Kc5 f7 Kb4 b6 c5 b7 h2 e5 c4 Ra2 c3 Qf3 d1Q Ne2 c2 Nbc3 Qd6 Rg1 h1Q Nd4 Rh6 Rg3 Qb6 Bc4 Rh4 Qf6 Qg4 Bb3 Qhh3 Kg1 Bd7 Rb2 Bb5 Na2+ Kc5 Bc4 Rd8 Nc6 d4 Nab4 Qh1+ Kf2 Qhh3 Be3 c1R Rd2 Rc2 Kg1 Qh5 Be6 Q3g4 Bd5 Qh8 Ba2 Nh6 g8Q Nf5 g7 Nd6 Bc4 Qh7 Qh8 Ne8 g8B Ra2 Qe6 Rc2 Qhf6 Qh8 Qc8 Rb2 Bd3 e6 Bg6 Bd6 f8B Kc4 B6f7 Rc2 Bfh6 Ra2 Rdg2 Rf2 Bc1 Ra2 Bhe3 Kc3 Rd2 Rc2 Rd1 Rf2 Rd2 Rfh2
8/3bBP2/1rbrB1Kn/k1PQP1pn/p3RB2/4Bp2/NN1nr1R1/1Q3b2 w - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 hxg4 d4 cxd4 Nc3 f5 Nb1 f4 Bh3 e5 Qd3 Bb4+ Nd2 Qg5 Bf1 Qf5 exf5 e4 Qf3 e3 Qd1 Bc3 Ke2 Ba5 Kd3 e2 Nb1 Na6 Nf3 Bd2 Ng1 Be3 fxe3 Nb8 Kd2 Rh6 Ra2 Rh4 Ra1 Rh8 Kd3 Kd8 Ke4 Kc7 b4 Kb6 h4 e1R c4 g5 h5 a5 h6 g3 h7 d6 c5+ Kc7 b6+ Kc6 b7 d3 f6 Kb5 f7 g2 Rh4 a4 Ne2 g1N Bh3 d2 Nec3+ Ka6 b5+ Ka5 b6 Re2 Na3 Bd7 Ra2 Ra6 Be6 d5+ Kf5 d4 e4 d3 Kg6 Nf3 Rb2 Bc6 Na2 Nd7 b8Q Nh6 b7 Rd8 h8B Rb6 Qd6 Nf6 b8B Nh5 Qd5 Rd6 Bf6 Bd7 Be7 Bc6 Qh1 d1B Be3 d2 Qg1 Bb3 Qb1 d1B Bc7 Nd2 Nc4+ Kb5 Rc2 f3 Nb2 Ka5 Rg4 Bd7 Rg2 Bc6 Rc4 Bdc2 Rd4 Bd3 Rb4 Bdb5 Bb8 B3c4 Bc7 Rd7 Bcf4 Rd6 e5 Bd3+ Re4 Bd7 Qe1 Bbc6 Qf1 Rf2 Qa1 Bf1 Qb1 Re2
8/3b1nB1/P2Q1pPN/nRP2Bb1/rR1K4/1p6/Rp1kn1R1/bq1N2bQ w - - 0 1 illegal: No possible last move
Q1Q5/3BRQqN/1k3r2/1qq1N1K1/qpPnp3/2b1PPp1/2b4B/2R3nQ w - - 0 1 legal: proof: h4 b5 g4 c5 a4 g5 axb5 f5 b4 a5 d3 axb4 gxf5 g4 d4 cxd4 Bf4 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Bg7 Bg2 Bh6 Bf1 Bf8 Kd2 e5 c4 d5 f6 Kd7 g6 Kc7 e3 h5 f7 g3 g7 d3 f3 d4 Na3 h4 Bh3 Rh6 Bd7 h3 Nc2 h2 Nh3 Kb6 Ra7 Qf6 Ng5 Nc6 Ne1 Nge7 g8Q Nd5 Nh7 Bg7 f8Q Nf4 Qff7 Ne2 Bb2 Qg5 Bc3 Ng1 Qgf8 Bb7 Qa8 Rf6 Qc8 Bh8 Qa8 Qg7 Qc1 Kc5 b6 Bc8 b7 Kb6 b8Q+ Bb7 Kd1 d2 Nd3 e4 Qc8 Ba6 Rc7 Bb5 Ne5 Ba4+ Qc2 Nh3 Ke2 d3+ Kf1 d1Q+ Kg2 d2 Qb1 Nd4 Rf1 Qc2 Rc1 d1Q+ Bd2 Qb3 Be1 Ng1 Bf2 Qa2 Ra7 Bc2 Rc7 Qa4 Qa1 Nge2 Kh3 Qb5 Bg1 h1Q+ Bh2 Ng1+ Kh4 Qf8 Nd3 Qfc5 Ne5 Qg2 Kh5 Qgd2 Kg5 Qc3 Qb1 Qa1 Be6 Qaa4 Re7 Qf1 Qa1 Qh3 Bd7 Qh6+ Kg4 Qf8 Kg5 Qg7+ Kh4 Qh6+ Qh5 Ne6 Rd1 Rf7 Nc6 Bc3 Ne5 Nh3 Kg4 Rf6 Qf7 Qf8 Rg1 Nd4 Kh5 Nf4+ Kg5 Nfe2 Qf1 Qh8 Qg2 Qf8 Rc1 Ng1 Qh1 Qg7+
3R1bb1/1q1BpQ1P/3PBPB1/n6q/2BRp1q1/2rr2k1/1pq5/1KNQ2N1 w - - 0 1 legal: proof: e4 d5 g4 c5 d4 h5 gxh5 a5 b4 f6 Bf4 Na6 Bc7 axb4 Be5 fxe5 dxc5 d4 Nd2 Nc7 Nb1 Nd5 exd5 Bd7 Qd2 Bg4 Qd1 Bc8 Kd2 Kf7 Kc1 Kf6 c4 Kg5 a4 Kh4 f4 g5 c6 b5 c5 b3 a5 d3 a6 b4 h6 g4 a7 g3 h7 g2 f5 Qa5 f6 Bb7 c7 Rb8 c8B Bh6+ Nd2 b2+ Kb1 Bf8 a8B Nh6 d6 Nf5 c6 Ne3 c7 Bd5 Be6 Nc4 Nb3 d2 Nc1 Rc8 Ra4 e4 Bc6 Qb6 Be8 Na5 Bg6 Qb7 Bc4 Rg8 h3 Kg3 h8Q Rg7 Bd7 Bg8 h4 Rh7 h5 Rh6 Qe2 d1Q Qg7 Rh8 h6 Qdd5 Bb3 Qh5 Qd1 Rh7 Bc4 Rh8 Nh3 g1Q Qf7 Qg2 Bde6 Qgf3 Rh2 Qfg4 Ng1 Rh7 Rd2 Rg7 Rd4 Rh7 Ka2 Rg7 h7 b3+ Ka3 b1Q Bd7 Ra8 c8B b2 Rb4 Qd3+ Ka2 Qc2 Bde6 Ra6 Bcd7 Rb6 Ra4 Rb3 Rb4 Rc3 Rb3 Qa6 Rb8 Qb7 Rd8 Rd3 Bgf5 Rg5 Bg6 Re5 Qe2 Rc5 Qd1 Qcb3+ Kb1 Rc7 Bcb5 Rcc3 Bbc4 Qc2+
Nn1Nb3/n5R1/1rP1r3/pb1rQ1p1/3R2K1/PQB2pP1/1r1nN3/kBN5 w - - 0 1 legal: proof: c4 d5 b4 c5 f4 e5 d4 exf4 b5 g6 dxc5 dxc4 h4 Na6 h5 Nb8 h6 Bg7 hxg7 Qe7 Nf3 Qe6 Ng1 Qc6 bxc6 Be6 Be3 Bh3 Bc1 Bc8 Kf2 Ke7 Kf3 Ke6 e4 Ke5 c7 b5 g3 f5 a3 h5 c6 a5 Qb3 Kd4 e5 h4 e6 h3 e7 b4 e8N c3 Be2 h2 Qe6 c2 Bd1 g5 Qh6 b3 Nf6 b2 Bd2 c1N Ne4 Ra6 Bb4 Ne7 g8Q Nb3 Be1 Bd7 c8N Rb6 Bc2 Be8 Nbd2 b1R Qhe6 Rh6 Ned6 Kc3 Nb7 Kb2 Nd8 Rd1 Qe4 Re6 Ne2 Rb1 Rf1 h1R Qe3 Rd1 Bb1 Rh2 Rh1 Rg2 Rh7 Rh2 Rg7 Rg2 Nd6 Nc8 Nb5 Na7 Nc7 Rh2 Na8 Rg2 Ne4 Rd5 Nc1 Rc2 Nc3 Nd2+ Kg2 f3+ Kh3 f2 N3e2 f4 Kg4 f1B Qe5+ Rc3 Ba2 f3 Rb1+ Kc2 Rb4 Rb3 Rd4 Kb2 Bb1 Ka1 Qf7 Rb2 Qb7 Ra6 Qb5 Rb6 Qb3 Ne4 Bc3 Nd2 Ng1 Ba6 Nge2 Bb5
4r1R1/1BB1qq2/NNQ2B2/3B2nq/p1Q1Rq1p/2bp2Pn/KPP2k1q/8 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Be3 f3 Bc1 f4 Nb1 Bb7 Na3 g5 Nc4 a5 Be3 Be4 Na3 Bf5 gxf5 g4 Bc1 g3 Nb1 g2 Ra3 Ra6 Ra2 Rg6 Ra1 Rg3 hxg3 Be7 Be3 Bc5 Bc1 Bf8 Kd2 Kf7 e4 Kf6 b6 Kg5 e5 Kg4 f6 d5 b7 h5 f7 h4 e6 d3 Kc3 d4+ Kb3 d2 e7 d3 e8B Bh6 f8Q Nc6 b8B Nce7 Ne2 g1Q Bc7 f2 Qf6 Kf3 Na3 Ng6 Ka2 Qh2 Nc4 Bg7 Nb6 Qe7 Bf7 Nh6 Qc6+ Ke3 Bh3 f1Q Bg2 f3 Nd4 f2 Qg4 Re8 Ne6 Bc3 Nc5 Nf4 Na6 Nh3 Bfd5 Nf7 Qgc4 Nfg5 Bge4 Ke2 Rg1 d1Q B1f4 Rd8 Bfe5 Re8 Bf6 Ke3 Bg2 Qh5 Bh1 Qc1 Rd1 f1Q Re1+ Kf2 Re4 Qe3 Re1 a4 Rg4 Nf3 Rg8 Qf4 Re4 Nfg5 Bf3 Qf5 Bg4 Qfh7 Bc8 Qh7f7 Bb7 Qc1 Nc5 Qd2 Na6 Qf4
N2k4/1rnP1np1/4p1R1/1b3B1Q/qQ2p2P/NRN4n/q2bBPNp/1K6 w - - 0 1 illegal: No possible last move
5N1n/RPP4b/3kB3/Rq2b2p/Q2p1r2/b2rRb1P/2ppB3/1K1R1N1Q w - - 0 1 illegal: No possible last move, all moves rejected
R6b/4BK2/3qN2p/4Pkp1/PP2bnp1/NqQ3R1/pQBBn3/n1n1B3 w - - 0 1 illegal: No proof kernel
B1nBbk2/3Q1r2/1QN3bK/RN2PQ2/3PqR2/2rPrQ2/q1nb1r2/r4n2 w - - 0 1 legal: proof: h4 d5 f4 b5 a4 g5 axb5 gxh4 c3 d4 cxd4 e5 Rh3 exf4 Rh2 Ba3 Rh1 Bf8 Kf2 f5 Kf3 a5 b4 c5 e4 h5 g4 c4 g5 c3 g6 a4 d3 h3 b6 a3 b5 c2 g7 a2 b7 h2 e5 h4 b6 h3 Be2 Ra7 Nc3 Ne7 g8Q Qd5+ Ne4 Nbc6 b8Q Nb4 Bd2 c1R b7 Rc3 Qf1 Nc2 Qc7 Bd7 b8Q+ Nc8 Qg5 Bb4 Qg6+ Kf8 Qbb6 Be8 Qd7 Qe6 Qfg2 Rb7 Rf1 a1R Nd6 Qa2 Nc4 Rh5 Na5 Ra7 Qdb5 Rf7 Qd7 Rg5 Nc6 Rg3+ Kf2 f3 Bg5 f4 Qgf5 Ba5 Bd8 Bb4 Bd1 Ba5 Ne2 Bb4 Rhg1 h1B Qfe6 h2 Qf5 Rh3 Qg3 Bg2 Qgg4 h1Q Qg3 Rc4 Nc3 Ba5 Nb5 Bd2 Qgg4 Rc3 Qgh5 Nb4 Bb3 Nc2 Bd5 Rg3 Be4 Bh3 Rg2 Bg4 Qh3 Bh5 Rh2 Bg6 Qhg4 Re1 Rh4 Re3 Ra1 Rg1 Qgh5 Qc4 Ra5 Qa2 Nb4 Ra1 Ba8 Qhb1 Nc6 Qbb3 Rh1 Qd5 Rf1 Qe4 Kg1 f2+ Kh2 f3 Kg3 Qed5 Kg4 Qe4+ Kg5 Qe6 Rg1 f1N Kh6 f2 Qhf3 Qa2 Rg4 Nh2 Nba7 f1R Nb5 Rf2 Rf4 Nf1
2q1n1Bb/3R2B1/4r3/1kP1bQ2/2b1RQBq/r1P1P1rb/1KN2B2/1nbq1N2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kd2 g5 a4 b5 h4 f5 c3 d5 Kc2 Kd7 h5 Kc6 a5 b3+ Kb2 f4 h6 d4 e6 b4 e7 g3 e8B+ Nd7 a6 g2 a7 g4 h7 g3 Qe1 f3 Bd2 f2 Rh2 d3 Rh3 Kb5 Ra4 Qh4 Ra1 Nf6 Bg5 d2 Rh2 d1Q Bf7 Ne5 Bh5 Bd6 Bc1 Re8 h8B Bh3 Bg4 Re6 Bd2 Ne8 Bf4 Nf3 Bf6 Be5 Bf5 Nd2 Nf3 g1B Bg4 g2 Rh1 Bh2 Bg7 g1B Be3 Bhf4 Ra4 Bg5 Bg2 f1B Qg3 Bgf6 Bd4 Be3 Ne1 Bh6 Bf2 Bhg5 Bh6 Bh8 Bg7 Bh6 Bd5 Bhf4 Ka1 b2+ Ka2 Be3 Qf4 b3+ Ka3 Ne4 Rd4 Bd2 e3 Bc4 Rf1 Qd8 Nc2 Qc8 Bf5 Qg4 Rd1 Qh4 Bg4 Be1 Nd2 b1Q Qf8 b2 Nf1 Nd2 Re4 Qc1 Qf4 Qb1 Na1 Qc2 Qf5 b1R Qf4 Qd3 Nc2 Rb3+ Ka2 Ra3+ Kb2 Nb1 Qf5 Rb8 a8Q Bd2 Qa7 Rbb6 Qc7 Rg6 Bg8 Rbe6 Be2 Rg3 Bg4 Be1 Rd2 Qe2 Rd3 Bd2 Rd7 Qd1 Qd6 Re7 Qh6 Re6 Qhf4 Bc1+
3rn2K/6QP/k1BBq1RR/4N1n1/nq3b1Q/Pr1rqrP1/3Qr3/1bN3Q1 w - - 0 1 illegal: No proof kernel
K1q5/b4P1n/2r2Q1P/1B2q1qr/N1n4P/QQ1Nq2k/2qR1r2/1Q1RBb1n w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Ke2 Kf7 b4 Kf6 f4 Kf5 h4 Kg4 c4 d5 f5 e5 c5 g5 f6 a5 b6 a4 f7 a3 c6 e3 Kd3+ e2 b5 a2 c7 e4+ Kc2 e3 Kb3 d3 b7 d2 b6 d4 Kc4 d3 Kb5 Nd7 Kc6 Bc5 b8Q Ne5+ Kb5 Ra6 b7 Rc6 Qa7 Nc4 b8Q Nf6 Qe1 d1N Qbb7 d2 Rh2 Nh7 Nc3 Nf2 Qbb6 d1Q Nh3 Qc2 Nd5 Nh1 Bd2 Qe8 Rc1 a1R Nc3 Ra2 Rd1 Qg8 Qf2 e1Q Nf4 e2 Nd3 Bd7 Qbb7 Qc8 Qa3 Ba7 Qf6 Be8 Rg2+ Kh3 Na4 g4 Qb8 Qf2 Be1 g3 Qb7 Qe3 h6 Rg8 Rf2+ g2 Qb3 Rg6 Qb1 Rc5+ Ka6 Rh5 Qb3 Qd8 Qa8 Bb5+ Kb7 Rb2 Qb8 Qc8+ Ka8 Qg5 Qfc3 Rc6 Qf6 Kg3 Qa3 g1Q Rg2+ Kh3 Qb3 Qd7 c8Q Q1e3 Qf8 Qc8 Qfa3 Qee5 Bg3 e1Q Rgd2+ Kg4 Bf2 Q1e3 Be1 Ba6 Be2+ Kh3 Nc1 Na5 Bb5 Nc4 Nd3 Qc1 Rg2 Rf2 Qb1 Qc2 Qbb3 Rf1 Rgd2 Rf2 Qb1 Na5 Bc4 Qcg4 Q8b3 Bb5 Ndc5 Ba6 Be6 Bd3 Bc4 Bf1 Bb5 Nc4 Nd3 Qc8#
Bn1Br1bb/1NB1P1Q1/6R1/1PQ3nk/1brn2N1/q2r1P2/rr3BK1/R3q3 w - - 0 1 illegal: No proof kernel
N1BB3r/knq1r3/3Pn3/4qQqP/N1nb1PQ1/1bb4r/1R4BR/B1K2b2 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 f4 g5 a4 c5 d4 Kc7 Kd2 Kb6 f6 e5 a5+ Ka7 f7 b5 h5 e4 d6 g3 d5 c4 d7 b3 a6 b4 d6 g2 Rh4 e3+ Ke1 c3 Ra3 g4 Ke2 c2 Rh1 g3 Qe1 b2 Ra4 b3 Qd1 Qa5 d8Q Nh6 Qe8 Be6 Rc4 Qe5 Re4 Nc6 Ra4 Nd8 Ra2 Bg7 f8B Nhf7 Bd2 c1Q Qd7+ Nb7 Nc3 b1N Rb2 Ng5 Nf3 g1Q Bg2 Na3 Nd4 Nc4 Na4 Bf6 Bh3 g2 Rh2 Bg7 Kd3 e2 Be7 e1R Qg4 Bf7 Bb4 Ne6 Bc3 Rae8 Bd8 Re7 Qc6 Re2 Qe4 Bf6 Qef5 Rf2 Re2 b2 Rc2 b1B Ba1 Ba2 Rb2 Bb3 Nb5+ Ka8 Nbc3 Ka7 Nd5 Be8 Ndb6 Bb5 Na8 Re2 Ba5 Qgc5 Bd8 g1B Bg2 Bd4 Bh3 Qg1 Bg2 Re1 Bh3 Qc7 Bg2 Na3+ Kd2 Bf1 Bh3 Re4 Bg2 Nc4+ Kc1 Re2 Bh3 Re3 Bg2 Nba5 Bb7 Rf3 Bc8 Rh3 Qc2 Qb5 Qgg6 Bc3 N8b6 Qgc5 Qg4 Qg5 Qcf5 Kb8 Bd7 Bfe5 a7+ Kb7 a8B+ Ka7 Bg2 Bed4 Bc8 Nb7 Na8 Qe5
2k3B1/4Q1BR/qPn1rr2/1P5Q/1q1rbNnb/BN6/q4P1r/Rb1B1K1n w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 g4 a5 b4 h5 b6 e5 d6 c5 g5 e3 g6 c4 d5 e2 g7 h3 b5 c3 Qd4 h2 Qe4 a4 Ra3 c2 Nf3 h4 Bg2 h3 Qb4 e4 Qb2 Nc6 Bf1 Nh6 g8B Ng4 Rc3 a3 Ng1 a2 Bh6 a1Q Rg3 c1R+ Kd2 e1R Be2 Qa2 Bg7 Rc4 Bd1 Be7 Ra3 Bh4 Ne2 e3+ Kd3 Qe8 Nf4 e2 Qe5 Qf8 Nd2 Rd4+ Kc3 Rh6 Nb3 Rf6 Qh5 Kd8 Ra4 Bf5 d7 Bb1 Ra7 Qfa3 Rf1 Ke7 d8B+ Kd6 Rf7 h1N Be7+ Kd7 d6 h2 Bef8+ Kc8 d7+ Kb8 Be7 Qa6 d8Q+ Kb7 Qd6 Kc8 Qde5 Ra7 Ba3 Rad7 Qe7 R7d6 Bf8 Rde6 Rg1 Rf1 Rh7 Re1 Bg7 Rf1 Rg3 Rg1 Rd3 e1Q+ Rd2 Qe4 Rc2 Rg2 Rc1 Bd3 Ra1 Bb1 Rh6 Ng3 Rh8 h1B Rh7 Rh2 Bc2 Ra4 Kd2 Qc4 Kd1 Be4 Ke1 Nh1 Bd1 Qc3+ Kf1 Rd4 Bb2 Qca5 Ba3 Qb4
nN1Qnkq1/4qP2/3b1bK1/1b2R3/1PR3R1/P4r1r/rQ1n1N1q/2B1RB1q w - - 0 1 illegal: No proof kernel
2RbKbB1/1NP3N1/1P6/B2N1P1r/2b3nr/r1R1N2Q/3Q3b/qnq2nkq w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 b4 h5 g4 d3 f4 a4 c4 a3 b6 h3 c5 e4 b5 e3 c6 h4 b7 e2 b6 e1B c7 h2 Nd2 h3 Qa4 a2 Ngf3 Na6 b8Q Nc5 Ng5 Ne4 Rb1 a1B Rb5 Ba6 Nc4 d2 Ne6 d1N Nc5 Rh5 Qc2 Be5 Rb3 Nd2 Rc3 Nh6 Ne3 Nb1 Bd2 Bh4 Qc8 d6 Kc6 d5 Be2 d4 Bc4 d3 Nb7 Qd4 Bg8 Bc4 Qc1 Qc5+ Kd7 Ra3 Ke8 Bed6 Rf1 h1Q Qb2 h2 g5+ Kg7 f6+ Kg6 f7 Ng4 Be1 Qa5 Qg2 d2 Qh3 Qa4+ Qd7 Qc2 Rf3 Qc1 Rf1 Qf3 Rg1 h1R Qd8 Rh2 Rg3 Qh1 f5+ Kg7 g6 Kh6 Qd7 Kg5 g7 Kf4 Rg2 Bd8 Rg1 Bfe7 f8N Ke4 Ne6 Bf8 Rg2 Bg3 Qd6 Kf3 Qd4 Nb2 Qd7 d1Q Qd2 Rh4 Bh7 Rh5 g8N Rh4 Ng7 Qa4+ Qd7 Nd1 Ne7 Qa5 Qd2 Qa6 Nc2+ Nde3 Bg8 Qa7 Nd5 Qa5 Rb3 Qc3 Re2 Nf1 Nce3 Qa1 Rc3 Rh5 Qd4 Rh4 Ra2 Rh5 Bd2 Kf2 Qd3 Rb3 Ra8 Kg1 Rc8 Ra3 Be1 Bf4 Qd2 B4d6 Bh4 Be5 Be7 Bg3 Bb4 Bf4 Ba5 B4d6 Qf3 R2h4 Qh3 Bh2
3KN2r/N1n3P1/2b2n2/N2Bk1qr/Rrb2n2/R3nr2/PbQ3P1/BNQ2n2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 c5+ Kc4 h5 Kb5 f3 d4 f4 e4 c4 g6 f2 g7 h4 Qe2 f3 Ba3 c3 Bb2 b3 Rh3 c2 Qe1 c1N Ne2 Nd3 Nc1 Ra3 Qd1 Nf6 Qc2 Nf4 Bc4 f1N Rg3 Qe7 Kb6 f2 Rg4 h3 e5+ Kd7 e6+ Kd6 Bc3 b2 Nb3 h2 Na5 Ne3 Bb3 f1N Qc1 Qd7 e7 h1R Bc4 R1h5 e8N+ Ke7 Bb3 Qb5+ Kc7 Be6 d6+ Kf7 d5 Na6+ Kd8 Nc7 d7 b6 d6 Qg5 Be5 b5 Bd4 b4 Bd5 b3 Be5 Ng6 Ra4 Nf4 Nc3 Kg6 Rb1 Kf5 Qc2+ Nd3 Rd1 b1B Qc1 Bc2 Nb1 Nf4 Ba1 b2 Rd3 Ke5 Rc3 Rb3 Rd3 Rb4 Rda3 Be4 Kc8 Bf7 d8Q Bg8 d7 Bc5 Qc2 Bd4 Qe7+ Be6 Qec5 Bg8 d8N Bc3 Nd2 b1R Qc6 Rd1 Nb1 Rd3 Qc4 Bb2 Ndc6+ Kf5 Na7 Ke5 Kd8 Rc3 Bb7 Bc6 Qc1 Rcb3 Q4c2 Bc4 Ba8 Neg4 Bb7 Rf3 Ba8 Nge3 Bb7 B6b5 Bd5 Bc6
3K2Rq/5NP1/1n4PB/kr2b3/2bNqN1r/PB2QQ2/2Nb2nR/2bbb2r w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 Kb6 f4 h5 g4 e3 d4 e2 f5 e1B f6 h4 d6 h3 d7 h2 Ke6 c4 d5 b3 a3 b2 d6 c3 f7 c2 g6 Bd2 g7 Ka5 g5 b5 g6 b4 Bh3 b3 Bg4 Rh4 Ne2 Ba6 Bh3 Nh6 Qg1 Ng4 Nd4 Ne3 Ra2 Ng2 Nc3 b1B Nce2 b2 Qe3 Qc8 Re1 h1R Nf4 Ra7 Bg4 Rb7 Bd1 Rb5 Rf1 Qe8 d8N Nd7 Rf3 Nb6 d7 Bb4 Bd2 c1B Bb3 Bc2 Rf2 Bd1 Nc2 b1Q Rf1 Rd5 Rf2 Bc4 Nc6+ Ka6 N6d4 Ka5 d8N Rb5+ Nd5 Bc3 Rf5 Bb4 Rh5 Bc3 Rh8 Bb4 Rg8 Bc3 Kf5 e5 Kf6 e4 Nf4 Bd6 f8Q Bcb4 Nf7 Qb8 Qf3 e3 Qe8 e2 Qee3 e1B Rb2 Bc3 Ra2 Be5+ Ke7 Qa8 Rb2 Qe4 Kd8 Bb4 Na1 Qbd3 Nc2 Qf1 Ra2 Qg1 Rb2 Qh2 Nfe6 Rh5 Qh6 Qe3 Na1 Qe4 Bf4 Ne3 Rf2 Ka6 Nac2 Bbd2 Re2 Qh3 Rh2 Ka5 Qg5 Rh7 Qg1 Ng2 Qge3 Rh4 Bg5 Rg4 Nf4 Qh8 Bh6 Rh4
7k/2bnbr2/NPn5/bq1n2Pn/2RP3R/QKB2b1Q/1b3QB1/qrQ1N3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kg7 Kd2 e5 Kc3 a5 f4 h5 b4 c5 g5 a4 f5 c4 b6 h3 d6 h4 b7 h2 b5 a3 d7 h3 b6 a2 Qb3 e3 Ne2 e4 Qd1 Ne7 Nd2 Ra7 Nf4 e2 Ng6 e1B Bd3 e3 Nh4 e2 Nf3 Nbc6 b8Q Bb7 Qa8 Bg3 Bb1 e1B Bb2 Bc7 Qe2 Nd5+ Kc2 c3 Qc8 Qe8 d8Q Be7 Kb3 c2 Qd3 c1B Bc3 Bb2 Qdd7 Rh5 f6+ Kh8 f7 Rh6 Rg1 h1N Rg4 h2 Rh4 Ng3 Ne4 h1N Nc5 Nh5 Na6 Nf2 Qh3 Ng4 Qe2 Rh7 Be4 Ngf6 Qf2 Nd7 Rc1 a1Q Rc2 Bd2 Ne1 Rh6 Bg2 Re6 Nd3 Re1 Rc1 Rd1 Ne1 Ba8 Rc2 Rb1 f8Q+ Kh7 Q8f4 Kh8 Qd6 Bb7 Qa3 Ba8 Bb4 Rb7 Rc4 Bdc3 Bd6 Ba5 Bb4 Na7 Nb8 Nf8 Qcd7 Bg3 Rf4 Ne3 Bc6 Bf6 Qc8 Rf7 Rc2 Be7 Bg2 Qb5 Rh4 Bf3 Na6 Nd5 Qc3 Nc6 Qce3 Rf4 Qc1 Nd7 Rc3 Rf7 Rc4 Qc5 Bd2 Bc7 Bc3 Qb5+
NR3qq1/2PNRr1r/4q3/2b4P/1B1rbQ2/6R1/1nP1Knqk/q2RQB1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 dxc5 exf4 h4 Ke7 b4 Kf6 e4 Ke5 h5 g5 c6 d5 c7 a5 b6 f5 b5 d4 b7 a4 b6 f3 Ra2 f2+ Kd2 Kf4 e5 Kg3 e6 a3 e7 d3 e8Q f4 Qd7 f3 Qc6 Nd7 b8R Ra4 b7 Qe8 Qd6+ Ne5 Qc5 Rh7 Qe2 Rd4 Kd1 d2 Qa5 Bf5 Nc3 Qe6 Bb2 Nc4 Rd8 Nf6 b8R Be4 Qf5 Bc5 Bh3 f1Q+ Qe1+ f2 Ra1 a2 Rb1 a1Q Rdc8 Qg2 Qe2 f1Q+ Qe1+ Qff2 Bc1 Rdd7 R1b3 Rdf7 Qe2 Qf4 Nf3 Qfd6 Rg1 Qf8 Ne5 Kh2 Re8 g3 Qe1 Ng4 Qf4 Nf2+ Ke2 d1R Re7 g4 Nd5 Nb2 Nd7 Rd4 Bd2 Qh1 Qe3 g2 Bb4 g3 Rf1 g1Q N5b6 Qhg2 Na8 Qc1 Qf3 Qg5 Qf4 Qgg8 Qed2 Q1h1 Ra1 Qb1 Qe1 Qa2 Rd1 Qa1 Re3 Qh1 Qg5 g2 Rg3 g1R Bf1 Qg2 Qf4 Rh1
B1nqqbr1/4n2b/1B3N1B/1k2KBPP/2R2q1q/2P1bRQ1/r4Qr1/1N3b2 w - - 0 1 illegal: No proof kernel
rq4qR/3k1P2/Q4bNN/N1rqnRr1/2r1n3/1B1q1P1P/nK6/BbN1Q3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 e5 b4 g5 c4 d5 Kc2 a5 b6 e4 f6 d3+ Kb2 g3 b5 e3 f3 g4 b7 g2 c5 d2 f7+ Kd7 h3 g3 b6 d4 Bd3 e2 Be4 e1N Kb3 d3 Nc3 a4+ Kb2 Be7 Nge2 g1R Nb5 g2 Bd5 Rh4 Nd6 Nf6 Nf5 Ne4 Bb3 Na6 b8Q Nb4 b7 Na2 Nh6 Bf6+ Qe5 Qc7 Rb1 Qb8 c6+ Kd8 c7+ Kd7 Qc2 d1Q Qc4 d2 Qa6 Rh5 Qc3 Rg5 Rh2 Rf1 Qe5 g1Q Rg2 Rf2 Rg4 Rf1 Rh4 a3+ Ka1 Rf2 Bb2 Nd3 Nc1 Rh2 Qg3 Ne5 Qe1 Rhg2 Rf4 R2g4 Rf5 Qc2 Bd4 d1Q Rb2 Qc3 Kb1 Qdd2 Rc2 Qce3 Ba1 Qd5 Rc6 Rh4 Re6 Qed2 Re8 Qgg2 Rh8 Rhh5 Qb6 Ra4 Qa5 Rc4 Qa6 Q2d3+ Bc2 Rg6 Qg1 Q5d4 Qa4+ Ke7 Qb4+ Nc5 Rh7 Q3e3 Qb5 Nc6 Bb3 Qa8 b8N Nab4 Rg5 Bf5+ Bc2 Qee4 Bc3 a2+ Ka1 Qee3 Ba4 Bb1 Rh8 Qed3 Bb3 Ne4 Qe1 Kd6 c8N+ Ke6 Nd7 Qb8 Nd6 Qgg1 Ne5 Qc5 Kb2 a1R Nb7 Ra8 Na5 Na2 Ka1 Rg8 Qa6 Ke7 Neg4 Kd7 Re5 Rc8 Rf5 Qcd5 Be5 Rc7 Bc3 Qg3 Bd4 Qg8 Bc3 Rg5 Ne5+ Ke7 Ng6+ Kd7 Kb2 Rcc8 Ka3 Qb8 Ba1 Ne5 Kb2 R8c5
1BkB3K/2qn1P1q/1RQ2B1Q/rN1b4/Rr2P1r1/bN2q2P/1n2r1B1/b2q4 w - - 0 1 illegal: No proof kernel
1r1N3b/1R3P1P/1qBn1B2/2bBq1r1/2r2q2/1Bnbk2P/Q1rR2Q1/KN3b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb2 Ke4 a4 g5 f4 b5 h6 d5 c5 e5 h7 b3 h3 d3 a5 d4 c6 g4 a6 b4 c7 g3 a7 d2 f6 d3 f7 g2 f5 Nf6 Nc3+ Ke3 Ra5 e4 Na4 Qd6 Ne2 g1B Rd5 Ba6 c8B Bg7 f8Q Nc6 Kb1 b2 Ka2 b1B+ Kb2 b3 Bg2 Qf4 Bf1 Ne7 Rd4 Rb8 a8B Ne8 f6 Rg8 f7 Nd6 Nec3 Nd5 Qh5 Bh8 Bcb7 Rg5 Qg6 Bc2 Nb1 Nc3 Bd5 Bc4 Ka3 b2 Bac6 Ncb5+ Kb4 Kf2 Qfg7 d1Q Nc5 e3 Nb7 e2 Nd2 b1R+ Bb2 e1Q Nd8 Re5 Qf5 Rc1 Qe4 Rg5 Bc3 Qdg4 Rh2+ Qg2 Nb1 d2 Qgg6 d1R Qh5 Ba2 Bfc4 Rd2 Rd3 Qee3 Bf6 Qe5 Rc3 Q3f4 Rb3 Rd4 Rb2 Nc3+ Ka3 Bb3 Qg4 Ba4 Rb7 Bb5 Ba2 Bf1 Kb2 Bcd3 Ka1 Ra4 Qd1 Rc4 Qa4 Rc2 Qa5 Rc1 Bb3 Rc2 Qd4+ Ke2 Qa2 Be3 Qe4 Qgf2 Qh1 Ba7 Bg2 Q2d4 Bgd5+ Ke3 Rd2 Qc5 Qh2 Qb5 Qh1 Bc5 Qg2 Qb6
2n3q1/rKnB1PPP/5n2/4bRqn/1Q1B2bN/4Nr1q/N4Rqk/4rQN1 w - - 0 1 illegal: No proof kernel
3Q1KQr/2BP1R1B/1n1b1rB1/PR2q2n/6k1/n1q2N1b/2BrN1Pn/q1r5 w - - 0 1 illegal: No possible last move, all moves rejected
2bn1K2/5r2/R5Q1/P1NNnNn1/nNr1RQ2/b2q1b1B/2PP2n1/1nk1B2b w - - 0 1 illegal: No proof kernel
3NB1Q1/2nr3q/Q1r2n1P/1P1b1NbK/2RbR3/nBBnb1Pn/8/Bnk5 w - - 0 1 illegal: No proof kernel
qrRnkB1N/1B3R1K/6b1/2r1n3/PPbQ3r/n2QN1P1/2Q4Q/1r1bb1n1 w - - 0 1 illegal: No proof kernel
1Nq1k3/r4n2/1rq4Q/1b1PK2b/PPB1QB1q/2R1Nr2/1bnR1R1p/5nR1 w - - 0 1 illegal: No proof kernel
1r2k1r1/bn2q2b/4B2P/rn2QnR1/RBR3pP/Q2q3R/4NP2/1b1K1N1q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 b4 e5 c4 d5 h4 g5 c5 a5 h6 g4 b6 a4 b7 e3 b5 a3 b6 a2 c6 e4 c7 e2 Qc2 d3 Kd2 d4 Qc6+ Nd7 b8Q Ne7 b7 Nf5 Bg2 Rg8 Qc3 Bc5 Bf1 Ba7 Qc2 Nc5 Bb2 e3+ Kc1 e1Q+ Qd1 e2 Bc3 d2+ Kc2 Qd6 Qc1 d1N Qa3 d3+ Kc1 d2+ Kc2 Qd7 Bb4 Nc3 Rh3 d1B+ Kc1 Nb5 Nd2 Qh7 Bg2 Qd7 Nf1 Qd3 Bd5 Bc2+ Kb2 Qec3+ Kc1 Qe5 Bc4 Qe7 Be6 Qe4 Kd2 Bb1 Kc1 e1R+ Kd2 Re2+ Kd1 Rb2 Ne2 Qd5+ Rd3 Qdd8 Rd5 Bd7 c8R Bc6 Rd3 Be4 Qe5 Rb3 b8R Nb7 Rc5 Rb2 Rbc8 Rb8 Rcd5 Rc2 Rh3 Rc5 Rc7 Qdd6 Rd2 Qd3 Rc6 Nb5d6 Rc7 Ra5 Rc5 Nb5 Rc4 Qg3 Rd5 Qd3+ Bd2 Nfd4 Rdc5 Bh7 Rd5 Nf5 Rdc5 Qg3 Bb4 Qd3+ Nd2 Qg7 Qh2 Nfd4 Qc1 Rh8 Rg5 Rg8 Qe5 Qe7 Ke1 Nf5 Qcc3 Bc2 Qb3 Qd5 Qbb2 Qh1+ Nf1 Bb1 Kd1 Be4 Rb1 a1Q Qc1 Qa3 Ra1 Qe3 Ra4 Bb1 Qa3 Qd3+
KQ6/Q1QN1P2/1r2q1b1/BBpk1P1r/n1Rq3q/2bN1n1P/2R3n1/b1Qr4 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 g4 hxg4 a4 d5 axb5 dxc4 Ke2 Kd7 Ke3 Kd6 Ke4 g5 d4 c5 f4 a5 b4 e5 f6 a4 d5 a3 b6 a2 f7 c3 b7 c2 b5 g3 h3 g2 b6 g4 Rh2 g3 Nd2 Nd7 Qg4 Rb8 Ngf3 g1Q Qg5 g2 Bb5 Bg7 Nb3 Rh5 Bd2 c1R Ba5 Rd1 Rc1 a1B Rc4 Nh6 Nc1 Ng4 Nd3 Ne3 Qh6+ Qf6 Qg5 Qe1 Qh6 g1N Rhc2 Qh4 Qg5 Ke7 d6+ Ke6 Qh6 Ng2 Qg5 Ra8 b8Q Ra6 b7 Nb6 d7 Na4 d8Q Rb6 Qa7 Bh8 b8Q Ba6 Nh2 Nf3 Ng4 Qg7 Nf6 Bc3 Qba8 Ba1 Nd7 Kd6 Kf5 e4 Qa8b8+ Kd5 Qbc7 e3 Qdb8 Rh7 Qh6 e2 Qg5 Nge1 Qg1 Ng2 Qe3 e1Q Qc1 Qb2 Rb4 Bc8 Rbc4 Re6 N7e5 Bg7 R4c3 Bf6 Rc4 Rb6+ Kg6 Bg4 f5 Rh8 Nd7 Qe6 Qg8 Nd4 Qgb8 Bg5+ Kg7 Rh6 Kg8 Bh5 Kf8 Be7+ Ke8 Bg6 Qg5 Bd6+ Kd8 Rh5 Kc8 Nf3 Qh6 Be5 Qc1 Rd6 Kb7 Rb6+ Ka8 Qb4 Rf4 Bec3 Rg4 Qbe4 Rf4 Q4e5 Rc4 Qed4
2k1K1n1/b1bR1n2/b1b2P2/1Npr1P2/q2r1NB1/B2bP3/1NNR2Q1/1n3rQ1 w - - 0 1 illegal: No proof kernel
nn2Q2B/3r1Q2/2p5/1N1PbPkr/1PrRn3/n2Q2b1/KN3nB1/1QRbq3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg6 d4 a5 Kd2 e5 Kc3 h5 Kb3 h3 b6 h2 g5 c6 d6 h4 d7 a4+ Ka2 a3 b4 h3 b7 e3 d5 e2 Kb3 e1N Ne2 a2 Qc2+ e4 Qd3 Bd6 Ng1 Ra7 Na3 Ne7 Kb2 Qe8 d8Q Be5+ Qd4 e3 Bg2 e2 Qa5 Bg4 Nb5 Nc8 Nf3 Nc2 Ne1 Rh5 Nd3 Na3 Rd1 e1B Qb6 Kf5 g6 h1N g7 h2 g8Q Nf2 Kb3 h1R Bb2 R1h4 Rac1 a1N+ Ka2 Nb3 Qf8+ Kg6 f5+ Kg5 Qf7 Nc5 Qa6 Be2 Qe4 Nb6 Bd4 Rf4 Nb2 Na8 Qb1 Nce4 Rd2 Qe7 Bc3 Bd1 Rd4 Nd7 b8Q Rc7 Qbe8 Nb8 Bh1 Rd7 Bf3 Nd3 Bg2 Bg3 Nc7 Ndf2 Qad3 Qc5 Nb5 Qa7 Rc4 Qe3 Rd4 Qe1 Rc4 Bc7 Bh8 Be5 Rd4 Rf3 Qf1 Rc3 Qfd3 Rc4
nb1N1RK1/1b2QP2/1r1P3Q/1Rqr4/n2nP2p/NQB2n2/1Q4b1/1B1nr1k1 w - - 0 1 illegal: No proof kernel
QnNnq3/2P1R3/1Q2b1KB/1rrb2b1/n3pPr1/2r2Q2/B1k4P/Q2Nr2R w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 a5 b4 g5 c4 d5+ Kd3 Ke5 b6 g3 c5 g2 f3 g4 c6 g3 b5 a4 c7 a3 f6 a2 b7 Ra3+ Qb3 Nh6 b6 Qe8 f7 Be6 Nh3 g1R Bd2 g2 Be2 Re1 Nc3 g1R Qb1 Rg4 Kc2 d3+ Kb2 Kd4 Na4 Rc3 Nf2 Kc4 Be3 d4 Nd1 Rhg8 Bf1 R8g5 Bh3 Bg7 f8Q d2 Bf1+ Kb4 Bc4 Rb5 Bf4 Nf7 Bh6 d3 f4 Na6 b8Q Nd8 b7 Bf6 Nb6 Bg5 Qa8 Nb8 Nc8 Ree5 Qf5 Rec5 Qe4 Bd5 Qg2 e5 Qf3 Be6 Qc1 Bd5 Rb1 a1R Ba2 e4 Rg1 Na6 b8Q Be6 Qb6 Nb8 Ne3 d1B Rh1 Bdb3 Nd1 d2 Rg1 Rh4 Rg2 Bf6 Rg7 Bbd5 Re7 Bg5 Bc4 Ra5 Ba2 Rg4 Ra1 Re3 Rb1 Re1 Qcc3+ Ka4+ Kc2 Rb3 Rc1 Rcb5 Qa1 Rbe3 Rb1 Rc5+ Kb2 Rec3 Na7 Rh1 Nf2 Re3 Nc8 Rf1 Qh3 Rfc1 Qf3 R1c4 Rh1 d1N+ Kb1 Nc3+ Kc2 Ka3 Nd1 Re1 Kd2 Rf1 Ke3 Na4 Qab7 Rc3+ Kd4 Re1 Ke5 Rab5 Qa8 Bg8 Kf5 Kb4 Bb1 Kb3 Ba2+ Kc2 Rf1 Qf8+ Kg6 Bge6 Rh1 Qe8+
q1B2BN1/1nR1b2K/3bqb2/p1Q2Q1B/1q6/1RPn1Nr1/P1Pr2bb/k5B1 w - - 0 1 legal: proof: d4 c5 Qd2 c4 Qd1 c3 bxc3 e5 g4 h5 e3 hxg4 dxe5 f5 e4 fxe4 Ke2 d5 Ke3 Kd7 Kf4 Kc6 h4 b5 f3 g5+ Ke3 a5 e6 d4+ Kf2 d3 Ke3 g3 e7 b4 e8B+ Nd7 f4 Kb5 h5 Ka4 h6 g4 f5 g2 Kf4 g3 h7 d2 f6 b3 Kg5 b2 Kg6 e3 f7 e2 Rh2 e1B Rh5 Bb7 Rd5 Be7 f8B Nf6 Nh3 g1B Bg2 Ng4 Rd3 Ne5+ Kh6 Rg8 h8Q Bd4 Bh1 g2 Re3 g1B Qh5 d1Q Qh7 Nd3 Qc5 Rg3 Qhf5 Bdf6 Nd2 b1Q Nf2 Qe2 Kh7 Qb4 Ng4 Bh2 Bh5 Bg2 Nf3 Rc8 Bd2 Ka3 Nh6 Kb2 Ng8 Rc6 Re6 Qa8 Be3 Rd6 Bg1 Bd2 Re4 Bf4 Rc4 Qe6 Re1 Rd5 Ree4 Bfd6 Rh4 Qa3 Rb4+ Qb3 Rhc4 Ka1 Rb7 Qb2 Rcb4 Qa3 Rb3 Qb4 Rc7 Rd4 Qb6 N7c5 Qa7 Nb7 Qac5 Bf1 Bg2 Rd5 Bh3 Bg2 Qe4 Qe5 Bc8 Qe6 Qg6 Re5 Qg5 Re2 Qgf5 Rd2
1q1b1Bq1/nbB3B1/5PbP/1KQ2Qr1/B3N1pN/2brP3/RR1b4/2k1qn2 w - - 0 1 illegal: No proof kernel
1r1BQ1R1/2Rb1N2/3PP1bb/1B4q1/5kNq/BrnP1n2/1pQb2b1/BK4n1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Kd7 e4 Kd6 a4 Ke5 a5 b5 a6 g5 d6 c5 h6 f5 h5 b3 h7 b2 h6 c4 a7 b4 Na3 b1B Rh5 f3 Qe2 g4 Kd1 b3 Rh2 c3 Nc4+ Kf4 e5 f2 e6 g3 Bb2 g2 Kc1 c2 Bg7 Nd7 Bd4 Ne7 Bc5 Ne5 Nf3 g1N Rg2 Nd5 Nh2 Nc3 Rg8 Rb8 a8Q Qg5 Ng4 Bd7 Ra7 Nef3 Ba3 Rb5 Kb2 c1B+ Ka1 Bd3 Nce5 Rb8 Rc7 Qh4 Bh3 f1Q Nf7 Qg2 Qd1 Rb6 Qe8 Be4 d3 Bd2 Qc2 Qgg3 Bg2 Rb4 Nh2 Qgg5 Ng4 Rb6 Rg7 Rg8 h8B Rb7 h7 Rb5 Rg6 Bh6 Bf6 Rb7 Qa8 Rgb8 h8B Nh2 Rg7 Nd5 Qc4 Rg8 Qc5 Kg3 Nge5 f4 Qd8 f3 Qc6 f2 Ng4 f1B Qc2 Kf4 Kb1 Bg6 Bf3 Rf8 Rg8 Bg2 Ba1 b2 Bf6 Rb3 Be4 Ne7 Bc6 Nd5 Bb5 Nhf3 Qe7 Rc8 Qe8 Rb8 Bd8 Nc3+
2n3bB/1Kn2B1Q/1R1PPNr1/1NR1P2B/2Q3br/B2p2b1/2bbr3/k2q3q w - - 0 1 illegal: No proof kernel
2R3q1/B3K1k1/Q1P3Nn/r2B1pP1/n2P1Qr1/Qqbn2b1/5N1R/3Qn1nb w - - 0 1 illegal: No proof kernel
1K1QRQRr/4NqP1/B3b3/bBn1nP1P/3r4/2kp1qB1/q3Bn1q/q5N1 w - - 0 1 illegal: No proof kernel
R2q1Q2/2kb2p1/n1N1q1nB/1bqP2Q1/1b3b2/Nr2PBbN/3P2rN/1R1K4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 b4 f5 e3 a5 b6 c5 h5 a4 h6 c4 b5 c3 h7 a3 b7 a2 b6 f3 Qe2 f4 Qf2 c2 Qg2 f2+ Ke2 g3 Nf3 Na6 b8Q Bb4 b7 Ne7 Ba3 c1Q Qg1 g2 Nc3 Ng6 Rb1 a1B Nb5 Be5 Nh2 Qc5 Kd1 f3 Be2 f1B Bb2 f2 Na3 Bc7 Bf3 Bg3 Be5 Bb5 Bf4 Rf8 h8N Rf5 Ra1 Rg5 Nf7 Rg4 Qe5 Rb8 Qf1 g1B Bh6 Bf4 Rb1 Rg2 Qg5 Kc7 Ra1 Bcd7 Ra2 Ra8 b8N Ra7 Nc6 Rb7 Qh5 Rb6 Ng5 Rb8 Nh3 Bg3 Qe1 f1Q Qg5 B1f2 Rg1 Bf4 Rh1 Qfc4 Qf1 B2g3 Qg4 Be5 Be2 Ba4+ Nc2 Ba3 Qf8 Rb3 Bf3 Nb4 Qg5 Bef4 Re1 Qe4 Rf1 Bf2 Ke2 Qe6 Rb1 B2g3+ Kd1 Bb5 Raa1 Bb2 Ra8 Na6 Na3 Bc3 Be4 Ba5 Bf3 Bb4
1nNkr1b1/Qb2pBR1/1K1N4/B1q2P2/bb1N3N/1rq1q2P/7P/b2R1nQ1 w - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 d5 h4 d6 h3 gxh3 cxd6 Bd3 d5 Bf1 d4 Ke2 a5 b4 g5 c4 d5 f4 g4 f5 a4 b6 a3 b7 a2 c5 g3 c6 d3+ Ke3 d4+ Kf4 g2 Ke5 e3 b5 d2 b6 d3 c7 e2 Ke4 e1Q+ Be2 Bg7 Na3 Bc3 Nc4 Bb4 Nf3 g1Q Nh4 Qc5 Rg1 Ra3 Rg7 Rb3 Nd6+ Kd7 Bb2 Nh6 Bc3 Ng4 Qb1 Qe3+ Kd5 d1B Kc4 d2 Kb5 Q1g3 Bc4 Re8 Bf7 Bf3 Qe1 d1B Qg1 Bd5 Bd2 Bc2 Rd1 a1B Be1 Qc3 Bd2 Ne3 Be1 Na6 b8Q Bcb7 c8N Nf1 Qa7 Qdc7 Bd2 Qge3 Be1 Ba8 b7 Kd8 b8N Bab7 Nc6+ Kd7 Rg3 Nb8 Nd4 Kd8 Rg7 Q7c4+ Kb6 Be6 Bh5 Bg8 Bd2 Bce4 Bf7 Bec6 Be1 Ba4 Qf2 Qc3d3 Nb5 Ba3 Ba5 Qdc3 Qg1 Bb4 Nbd6 Qc5+
4R3/q2pNn1n/4N3/1r5q/r3P2b/kbP1B1R1/B1bP1KrQ/Q2bB1bB w - - 0 1 illegal: No possible last move
8/kP2R3/bRq2q2/p1QbbB1P/r1b1n1PB/R1KQ4/Nn5q/rN4Rb w - - 0 1 illegal: No possible last move
QK2Nr2/rP1nR1bq/r6p/r1B3PR/N3r2P/2Q1B3/b2nBB1q/1n5k w - - 0 1 legal: proof: e4 b5 a4 g5 f4 d5 exd5 gxf4 axb5 c5 b4 cxb4 Ke2 Kd7 Kd3 Kd6 Ke4 e5 d4 a5 c4 f5+ Kd3 h6 g4 e4+ Ke2 b3 b6 b2 b7 a4 g5 f3+ Ke3 a3 Kf4 a2 Na3 f2 Qd3 e3 Ne2 Bg7 Nc3 e2 h3 e1R c5+ Kd7 d6 Ke6 c6 Qc7 Qc2 Nd7 Nc4 Ngf6 Bd3 Qb8 c7 Rf8 Rh2 Ne4 d5+ Kf7 Bd2 Kg6 Rd1 Re3 Re1 a1R Bf1 R1a5 Na4 Rf6 Bc1 b1N Qc3 Kh5 Bd3 Ndc5 Ke5 Kh4 d7 Kg3 d8B f1R d6 f4 d7 f3 Nd6 f2 Ne8 R8a7 Be7 Rfa6+ Kd5 Kf3 d8B Nd7+ Bb5 Kg3 Rh1 Kg2 Bea3 Nb6+ Kc6 Be6 c8Q Nd7+ Bb6 Ba2 Be7 Qe5 Qa8 Qf5 Kc7 Qh7 Kc8 Re2 Bf4 Ned2 Bd4 Re5 Bec5 Re7 Re5 Ree6 Be2 Re7 Rf5 Re4 Rf7 Ne5 Bg3 Ndf3 Be3 Nfd2 Rh2+ Kg1 Rg2+ Kh1 Re7 Re1 Kc7 f1Q Kb8 Qf4 Bh4 Rf1 Rg4 Rf3 Bhf2 Qg3 Rh4 Qh2 Rh5 Rf8 h4 Nd7+
4bBQn/NPrRqb1P/1n3k2/6q1/KQ2rr1N/PN3b2/1pBb3R/b1N5 w - - 0 1 illegal: No proof kernel
1qq1q1N1/1p2K1RN/2qQ1nb1/nBN1b3/r4PPb/4NP2/6R1/1qrQ2Bk w - - 0 1 illegal: No possible last move
Qb1bq1qB/PnRn1N1k/3RP3/5b2/N5r1/1p1N1r2/1P1n2B1/1K2NQnn w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 exf4 Qc2 g5 Qc5 gxh4 Qxa5 Nc6 Qa7 Nb8 Kd1 h5 Kc2 f5 g4 Kf7 e4 Kg6 d4 c5 a4 b5 g5 f3 a5 f2 d6 f4 a6 c4 d5 h3 d7 b4 e5 h2 d6 c3 Be2 f1Q Qc5 h4 a7 b3+ Kd3 h3 Bd2 f3 Ra6 c2 Qf2 c1B Bc3 Qg2 Bf1 Qe8 d8N Ne7 d7+ Nec6 Nf7 Rh4 d8N Be7 Ne6 Rg4 Nf4+ Kh7 Bd4 Nd7 Nc3 Bd2 Na4 Na5 Rd6 Nb7 Bc3 Qg3 Bg2 Bd8 Qf1 f2+ Nf3 Bc1 Rg1 h1N Bd4 Be3 Ne1 h2 Bc3 Beb6+ Kd2 Bbc7 Kc1 Bb8 g6+ Kg8 g7 Kh7 Qa6 f1N Nfd3 Nf2 Kb1 h1N Qc4 Nh3 Qf4 Ne3 Qf1 Nc4 Bd4 Ndb6 Bc3 Bf5 e6 Nd7 Ng5+ Kg6 g8Q+ Kh6 Qf8+ Kg6 Nf7 Kh7 Bf3 Qg2 Bh8 Qg3 Rg2 Ng1 Rc2 Nd2+ Ka1 Bbc7 Bg2 Rc8 Rcc6 Bb8 Rc3 Rcc4 Rc2 Rcf4 Rc7 Ne4 Kb1 Rf3 Qe7 Qf4 Qf6 Qg5 Qd4 Qgg8 Qd5 Nbc5 Qa8 Nb7 Bd4 Rff4 Bc3 Rf3 Bh8 Nd2+
nKr1k1N1/n3N3/q1b5/3Q1B1r/P2nr1pq/2r1P3/qR1bPRQ1/BRR5 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 Qc2 hxg4 Qa4 e5 Qd1 d5 cxd5 e4 Nc3 e3 fxe3 Ra3 Nb1 Ra8 Kf2 b5 Kg3 c5 Kf4 g5+ Ke5 f5 d4 g3 h4 b3 a4 g4 d6 f4 d5 b4 h5 c4 h6 g2 h7 b2 Nc3 b1Q Nh3 g1N Qb3 f3 Qd1 f2 Ne4 b3 Qd3 c3 Bb2 c2 Nf4 c1R Bg2 f1R Ng6 Nf6 Ne7 Qa2 Rb1 Ra7 Ba1 b2 Qd1 Rf3 Qf1 Rf4 Qf3 Bb7 d7+ Kf7 Kd6 Rc3 Qf2 Nf3 Rhc1 Bc6 Qf1 Qa5 d8R Nfd7 Nf6 Qa6 Ng8 Nd4 Be4 Nb6 Qg2 Na8 Bf5 Re4 Rd7 Ke8 Rb7 Nb6 Kc7 Na8+ Kc8 Bg7 d6 Bf6 Nh6 Bh4 Nhg8 Be1 Rc2 Bd2 d7+ Kf7 Rbc1 b1Q d8Q Qbb2 Qa5 Ke8 Qd5 Qb4 Rb2 Qba3 Ng6 Qe7 Rbb1 Qh4 N6e7 Nd7 Rb2 Ndb6+ Kb8 Nc8 R7b3 Rc7 Rbb1 Na7 R3b2 Ra3 Nh6 Rg8 h8R Rc3 Rh7 Rh8 Rf7 Rh7 Nhg8 Rh6 Bc8 Rh8 Rf2 Rh5 Bf5 Rc8+
qQ2R2Q/r3Nbb1/5q2/1QK1PQ2/n1PP1B2/kqnN3p/3r2qn/1r2R2B w - - 0 1 illegal: No proof kernel
KB4b1/BN2nq2/1qNBn3/r1P1R1r1/3Pb2p/Q4n2/Prk2b2/2b1QB1R w - - 0 1 illegal: No proof kernel
2rQqB2/3Nr1qk/1NK4b/1P2rPPR/1BB1rn1n/4bp1B/Q7/1b1Rq3 w - - 0 1 illegal: No proof kernel
4QBn1/b1b2K2/q1bnB1n1/Rp1qRB2/B1r3P1/2P2krQ/b4P2/N1q4N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kd3 e5 Kc4 d5+ Kd3 h5 a4 b5 g4 b3 a5 e4+ Ke2 d3+ Ke3 d2 Kd4 h4 Ke5 e3 a6 e2 a7 e1B f6 Kg6 f7 h3 Ba3 d4 Rh2 b2 Qc1 d1N Ra2 d3 Nf3 d2 Bc4 Bb7 Ke6 Nd7 Ng1 Rc8 a8B Nc3 Ne2 d1Q Nd2 b1B Bb3 Bc5 f8Q Ne5 Ba4 Bc6 Nb3 Ba7 Qe3 Qb6 Na1 Qc1 Ng3 Ne4 Nh1 Ba5 c3 Qa6 Bc5 Bc7 Qe8+ Nf7 Bf8 Nd6 Bb3 Rh7 Ra5 Rh5 Ba4 Rh8 Rg2 h2 Rg1 Rh3 Re1 Rg3 Qf3 Bd3 Qg2 Bb1 Qh3 Ba2+ Bb3 Nf5 Re5 Nh4 Bb7 Rd8 Bc8 Rd4 Bd7 Rc4 Bd1 Kh7 Ba4 Nd6 Be7 Kg7 g6 Kh6 g7 Ne4 Bf8 Nd6 Re1 Kg5 Re5+ Kf4 Bc8 Ng6 Bd7 N8e7 g8B Kf3 Bh7 Ng8 Bc8 Nh8 Bf5 Ng6 Bd7 N8e7 Kf6 Ng8+ Kg7 N6e7 Bc8 Ng6 Bce6 Kf4 Be7 Re3 Ng3 h1Q Bf8 Qd5 Nh1 Rg3 Bc8 Nb7 Bce6 Kf3 Kf7 Nd6+
4Q1r1/r1B2nb1/2qR2Pp/4Q2q/kPqnb2P/2b1R2N/2Nn2bK/B2Q3Q w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 g5 e3 g4 Be2 Be7 Bf3 gxf3 Qc2 Bd6 Qd1 Bf8 Kf1 Kd7 h4 c5 b4 f5 g4 a5 d4 c4 e4 f2 Kg2 f1Q+ Kh2 a4 d6 a3 e5 c3 b6 Kc6 e6 Kb5 g5 f3 g6 a2 e7 f4 e8Q+ Nc6 d5 c2 d7 f2 d6 f3 b7 Nh6 b8B Qc4 Bf4 f1B Ba7 c1Q Qee2 f2 Bd4 Rg8 Nh3 Qg5 d8Q Qh5 d7 Nf7 Bc7 h6 Qde8 Ra7 d8Q Bf5 Qa8 Bg2 Re1 Bfe4 Bde5 Qc2 Na3+ Ka4 Rb1 Bg7 Ba1 Bc3 Rb3 Bg7 Rd3 Bc3 Rd7 Nd4 Rd6+ Qc6 Qe5 Qb3 Nc2 f1N+ Kg1 Nd2 Kh2 Qbd5 Qae8 Qb3 Qf1 Qc4 Re3 Nf5 Q5e6 Bg7 Qe5 Nd4 Bc3 a1B Qfe1 Bb2 Qh1 Ba3 Ba1 Bb2 Re2 Bc3 Re1 Qa2 Re3 Qc4
1kB2bnb/qNb5/RRnB1PR1/1QN1r1R1/1pq1b3/2n5/r1P1P1Qq/K7 w - - 0 1 illegal: No proof kernel
b4r2/1N1B1N1n/K2P1Rr1/2R3PR/1Q5b/2qr1pbP/4qRnQ/2k1Bq1b w - - 0 1 illegal: No proof kernel
2q2N1Q/4n2b/1b1p2r1/BkqBrR1r/qB2PP2/5Bb1/n1NQP1K1/b5R1 w - - 0 1 illegal: No proof kernel
2Q5/8/PQK3q1/P5Bq/n2rnR1R/r1k1pbnN/1rP2N2/1RR1brqB w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 h4 gxh4 d4 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 h5 g4 d5 a4 h3 g5 h2 g6 d3 f4+ Kd4 g7 e5 f6 d2 f5 h4 f7 e4 f6 e3 Nh3 Qe8+ Kb6 Nd7+ Kc7 b5 Qf3 d1R Rg1 h1N Qh5 b4 Nf4 h3 Nd2 b3 Ng2 b2 Kc6 b1R Ne4 h2 Bd2 Bb4 f8R Rb2 f7 Ng3 Rc1 h1Q Be1 Ngf6 Qg6 Qh5 Nf2 Nfe4 g8R Rd2 Bb5 Kc3 Nf4 d4 N4h3 d3 Rg7 Rh6 Rh7 Ra7 Qd6 Rf6 Rh6 Qg6 Rh4 Qe5 Bc4 Qeh5 Bd5 Ndc5 Rh1 Bg4 a6 Rb7 a5 Na4 Rf1 Bf3 Rb8 Ra2 f8Q Ra3 Qc8 Rb5 Rb7 Rf8 Rf7 Rb7 Rff4 Rb8 Ng4 Rf6 Bf2 Rd1 Rb1 d2 Rg1 Rf1 Be1 Rf8 Ngf2 Rd8 Qde6 Nf6 Be4 Rd4 Qd6 Rb7 Qdc7 Rb8 Qb6 Rb7 Bd5 Nfe4+ Rf6 Ne2 Nd3 Rf2 Bf7 Nec5+ Bd5 Bg4 Bh1 Ne4 Qa7 Bf3 Rhg4 Kc4 Qab8 Rb5 Qb6 d1Q Rf1 Bc3 Rfg1 Rb2 Rf1 Rh2 Bh4 N2g3 Bg5 Rf2 Rh4 Bd2 Re1 Kc3 Rg1 Rg2 Rf1 Rg1 Ndf2 Qe1 Nd3 Qf2 Rfc1 Qf1 Ndf2 Be1 Qbb8 Qg2 Qbb7 Rf1 Qb6 Qg8 Rf7 Qg1 Rff4 Qgg6+
R4rR1/1k3q2/pb1r4/3RnNRQ/PQqPP3/B1NnKn2/1br3B1/3b3r w - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Kd7 a4 Kc7 e4 f5 h4 b5 d3 g5 c6 a6 h5 f3 h6 b4 h7 b3 Qe1 g3+ Ke3 b2 Rh2 f4+ Kd4 f2 Qe3 f3 Bg2 f1R Na3 b1R Bh3 g4 Rg2 f2 Qf3 Qf6+ Ke3 Ne7 Qe2 Qf7 Qb2 Rd1 Qa2 f1Q Bb2 Bg7 Nc2 Ng6 Ne2 Nf4 Nc3 Nd7 Qc4 Rf8 h8Q Ne5 d6+ Kb6 c7 Kb7 Rg1 g2 d7 g3 d8R Bg4 Rd5 Rac8 Ba3 Rb6 Qh6 Rd6 Qh5 Rc1 Nd4 Bd1 Nf5 Bf6 Rh1 g1N Bg2 Ngf3 Rg1 Rc2 Ra2 Rh8 Qd4 Rcf8 c8R Rh7 Ra8 Bg7 Qg5 Rh1 Qh5 Bf6 Bh3 g2 Qc4 Bd8 Qb4+ Bb6+ d4 Qc4 Rf1 g1B+ Rf2 Bh2 Rg2 Nfd3 Rg5 Bg3 Bg2 Be1 Bh3 Rc1 Rag2 Rc2 Rg8 Ng6 Rg5 Nge5 Na2 Bc3 Bg2 Ba1 Nc3 Bb2
4n2N/2n1b2P/3r2b1/rn1RQ3/3BB1NB/1Q1rp3/RPbPq3/KrkB3q w - - 0 1 illegal: No possible last move
6R1/Rqn4P/R4Bb1/pnNK1PN1/Rr1bn2r/bB1q3Q/1rbQ3P/k7 w - - 0 1 illegal: No possible last move
rb1b4/4qPrP/k1b1B2B/1R1RrpN1/1Q1R4/PN4b1/nK1q3n/2Qq1R2 w - - 0 1 illegal: No proof kernel
q2bR3/kb3PP1/q1b2n1R/1Qq5/2q4N/Qp1rP2K/2Q1nB1N/rBQn4 w - - 0 1 illegal: No proof kernel
1b1k2Nq/4bpr1/PR3b1n/2N2r1N/B2qNP2/BP3Q2/1qQ3R1/1n1n2bK w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 Qd5 hxg4 Qd1 b3 Kd2 b5 Na3 b4 Bh3 b2 Nb1 b3 Ke1 Bb7 Nd2 b1N Bf1 b2 Nh3 Bd5 Ng1 Bb3 cxb3 Bc5 Bh3 Bd6 Bf1 Bf8 h4 d5 a4 g5 e4 c5 f4 g3 a5 d4 a6 c4 e6 d3 e7 g2 Kf2 c3 e5 g4 h5 c2 h6 Nc6 h7 Nd4 Qf3 Ne2 Ne4 d2 Nc5 d1Q Rh6 Rc8 Nh3 g1B+ Kg2 g3 Ng5 Q1d4 Nge4 Nec3 Ra2 Nd1 Rb6 Nh6 Kh1 Rg8 h8Q Rg7 Qh7 Rc6 Qg6 Rf6 Bd3 Rf5 Bb5+ Q4d7 Bc6 Bf2 Ba4 g2+ Kh2 g1B+ Kh1 Bh4 Qgg2 Bf6 Qge2 Nd2 Qed3 b1Q Ba3 c1B Rc2 Nc4 Rg2 Bce3 Qd2 Qb2 Qc2 Qb5 Ne6 Kd7 e8N Nd2 N6c5+ Ke7 e6 Qc4 Rg6 Nb1 Rg2 Bg5 N8f6 Qcd4 Nh5 Bf6 Rb4 Qc8 Rb6 Kd8 e7+ Kc7 e8N+ Kd8 Nd3 Bd6 Ndc5 Bb8 Rg4 Bef2 Rg2 Be7 N8f6 Bh4 Ng8 Bhf6 Rf2 Qc6 Rd2 Qe8 Rg2 Bed6 Ne7 Qh8 Ng8 Bde7
q2b3n/2NQP1B1/rnPq1bB1/nQ2r2Q/brP5/2R3N1/k1p2Q2/3KbR2 w - - 0 1 illegal: No possible last move, all moves rejected
1b5N/1n2Pr2/pq1R3Q/N5n1/1P1Br2b/1r5B/qq1PbQ1K/1k1BRB1q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 g4 Kd6 Kg2 Ke5 e4 Kd4 b4 h5 g6 f5 e5 c5 g7 f3+ Kh2 f4 g5 a6 g6 h4 e6 f2 b6 c3 b7 f3 Bc4 f1R Na3 f2 Ra2 h3 Bd3 c2 Be2 c4 Bb2+ c3 Bc1 Be7 Bc4 Bh4 Rb2 Nf6 g8B Qb6 g7 Nh7 Bf7 Nd7 b8Q Ng5 g8B Nc5 Ba2 Kd3 Qh5 Nb7 Nf3 Rh7 Be8 Rf7 Bc6 Rd1 Rb1 f1Q Bb2 c1Q Bcd5 c2 Bd4 Qb2 Qh6 c1B Nc4 Kc2 Na5 Qc4 Ne5 Bd7 Qa7 Bb5 Bg2 Re8 Rf1 Re1 Rf2 Re3 Bf1 Rb3 Ng6 Qd5 Rf6 Be2 Nh8 Qc4 Kg1 h2+ Kh1 Qbc3 Ra1 Bb2 Re1 Ba1 Bb1+ Kb2 Bc2 Ka2 Bc5 Qb2 Bd1 Kb1 Bd4 Qcc2 Bh7 Qa2 Be4 Bc3 Beg2 Qcb2 Bh3 Ree7 Bc5 Be5 Bd4 Bb8 Rg6 Rf4 Kg2 Ref7 e7 Re4 Rd6 Qc6 Qc5 Qb6 Qc3 Rg7 Qg3 h1Q+ Kf2 Qf3+ Kg1 Rh7 Qf2 Rf7 Kh2 Qh1+
n1B3R1/3Pr2N/1r1QqRbb/1Q1qbP1Q/K7/5P1n/N1qpq1k1/1Qn3B1 w - - 0 1 illegal: No proof kernel
1K1BN1q1/3P1n2/k1PNQ1B1/nrRb2b1/1R1P1q2/3q3B/p1B3rQ/nq5b w - - 0 1 illegal: No proof kernel
4RB2/r2Pp3/q2b1qQ1/3bb1P1/R1N1nr1Q/3PRqnB/b6K/N1k1n1R1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 Kd6 f4 c5 Kf2 a5 Kg2 h5 g5 h3+ Kg3 e3 b6 a4 d3 a3 b7 e2 f5 Ke5 f6 Kd4 d6 e1N f7 a2 b5 c4 b6 h2 Bf4 c3 Na3 c2 Qd2 c1B Nh3 h4+ Kf2 Nd7 b8Q Bg7 f8R Ra7 b7 Ngf6 Qe3+ Kc3 Rg1 Kb2 Qg3 h1Q Nc2 Qa5 Be5+ Qc3 Re8 Nh5 Nf4 h3 Nd5 h2 Nde3 Nc5 Qh4 Be6 d7 Ng3 Qd6 Rf8+ Bf6 Qe4 Bh3 h1B b8R+ Qb7 Qc6 Bhd5 Ra8 Bf7 Bd4 Be5 Qg6 Bd2 Rc1 a1Q Rd1 Qa2 Na1 Qaa6 Rc1 Bd6 Bg7 Qe5 Rc4 Bc3 Re4 Kc1 Nc4 Qe6 Re3 Bce5 Rab8 Qbc6 Rb4 Qg4 Ra4 Qd4 Rh1 Nce4+ Kg1 Bg8 Kh2 Rf4 Rg1 Qc3 Na5 Ba2 Bh6 Bgd5 Bf8 Qb2+ Bg2 Qf2 Nc4 Qf3 Bf1 Bb8 Bg2 Qf6 Bh3 Bbd6
B1b3q1/2p5/2K1NP1B/R1q1krB1/2rq2QP/1q3QPR/1n4r1/Bbn3bN w - - 0 1 illegal: No possible last move, all moves rejected
NQ2n1R1/1PrqNb2/k3b1n1/2RR4/1pn3Q1/rP1n4/q1BR3P/B1qK3b w - - 0 1 legal: proof: f4 b5 g4 h5 c4 e5 a4 hxg4 a5 d5 cxd5 exf4 Kf2 Bc5+ Ke1 Bb6 axb6 Rh6 Nh3 Rh7 Ng1 Rh8 e4 Kd7 d4 g5 b3 c5 e5 a5 d6 Kc6 d7 Kb7 e6 f5 d5 b4 d6 a4 e7 f3 e8Q f4 Qde2 c4 Qc2 a3 Qee2 a2 Nd2 g3 Qcd3 g2 Qde3 f2+ Kd1 c3 Q2d3 f3 Bb2 c2+ Kc1 g4 Qe6 g3 Qee3 Nc6 Qdd4 Nce7 Bc4 f1B Bb5 f2 Nb1 Ng6 Bc4 Nf6 Qef4 Ra3 Bd3 Rh7 Nd2 Ne8 Nh3 g1N Nc4 Ka6 b7 Nf3 Rg1 Nd2 Nb6+ Nc4 Na8 g2 Be4 Qf6 d8R Be6 d7 Qh8 Rb1 a1Q Qb8 Qa2 Nf4 Bd3 Rd1 f1B Rd2 g1Q Ba1 Qg4 Nd5 Bg2 Ne7 Bh1 Qg1 Qf5 Qg4 Be2 Rc8 Bf7 d8R Qd7 Rc7 Bf1 Rc5 Bh3 Qf3 Bhe6 Qg4 Ne3 Rdd5 Qhb2+ Kd2 c1N+ Bc2 Nc4+ Kd1 Nd3 Rc1 Nf6 Rg8 Ne8 Rb1 Nc1 Rd2 Nd3 Rc1 Rg7 Rd5 Ne3+ Ke2 Qc6 Bb1 Qb5 Rc7 Nc4 Kd1 Rh7 Bc2 Rh5 Rg5 Qd7 Rb5 Rc5 Rc6+ Nb6 Rd6 Rc7 Rdd5 Nc4 Rbc5 Qc1+
Bb1Q2qR/1P1K1Q1r/q1nb3r/2n2R2/1pQ1n3/bP1N1bBq/3QP3/4N1k1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qd1 b4 Rh3 Qd7 Rh1 Qb5 axb5 Bf5 Nh3 Bg4 Ng1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 h5 b3 a5 d6 a4 g5 h3 g6 h2 g7 f3 b6 f2 d3 h4 d7 a3 Ke6 Kd4 Nc3 c5 Qd2 c4 Nd5 h3 Qe1 c3 Bg2 f1N Ne7 c2 Kd6 f4 d8Q a2 Qc7 f3 Bf4 c1B Qh4 f2 Be4 Rh6+ Bg6 Bb7 Be5+ Ke3 d4 Na6 d5 Ng3 Qc6 f1Q Qc2 Kf2 Qc3 Ba3 Qhc4 Ne4+ Kd7 Ra7 d6 Qg2 Nd5 Ne7 g8Q Nc6 Nf3 Be7 Rac1 a1B Nf4 B1b2 Qd2 Nac5+ Kc7 Bd4 d7 Ba1 Bd6 Be5 Qgf7 Qg3 Bh7 Qg8 Nd3+ Kg2 Rhf1 h1Q d8Q h2 Ra1 Qg1 Nfe1+ Kh1 Rf4 Q1g6 Rf5 Kg1 Rc1 h1Q Rb1 Bh2 Bg3 Qe6 Bg6 Qg2 Bh5 Qh3 Bf3 Qf6 Bh1 Ne6+ Kd7 Bd6 Bh4 Bhe5 Bg3 Bb8 Bg2 Bed6 Ra1 Bc1 Raa5 Ba3 Rh5 Qfg6 Raf5 Na5 Qde7 Nf2 Qb2 Bdc7 Qd2 Rh8 Qd8 Nc5+ Ke7 Qc6 Qg6 Bd6+ Kf6 Ba8 Bf3 Rg7 Qgf7 Qc8 Bd5 Qa6 Bh1 Bf3 Rh4 Bg4 Ba8 Bf3 b7 Nc6 Rh7 Na4 Ke6 Ne4 Kd7 Rg6 Rg7 Rh5 Rh7 Nac5+ Kc8 Re6 Rh8 Rg6 Ng2 Rh7 Nge1 Ne6 Kd7 Rf6 Qf4 Rfh6 Qd2 N6c5+
6rk/rPNRB2p/2B1Rb1Q/1bbq2N1/3nq3/3PqbPK/5QnR/R2r4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 b4 a5 e4 f5 b6 Kf7 g3 Kg7 Kg2 h3+ Kh2 f3 e5 c4 b5 f4 b7 a4 b6 c3 d6 a3 e6 c2 d7 a2 e7 f2 e8Q f3 Nc3 Nh6 Qe3 Ra7 Rb1 a1B Qe6 Nc6 b8R Rg8 b7 Bc5 Ba3 c1Q Bb5 f1R Qde1 f2 Nf3 Nd4 Nd5 Nhf5 Qh6+ Kh8 Nc7 Nh4 Ng5 Ng2 Bc6 Qc3 Ra8 Qe3 Rb6 Bb2 Qe2 Rd1 d3 f1Q Qc2 Qff3 Qf2 Qde8 d8R Bd7 Ra6 Q8e4 Bb4 Be8 Rd7 Qff5 Ra1 Qfe6 Rad8 Q6d5 Rd6 Bc3 Re6 Bd7 Ba4 Bb5 Rd7 Be7 Bd6 Bb4 Bc5 Bf6 Be7 Bc5 Re1 Ba6 Bc6 Bb5 Re2 Ne1 Kg1 h2+ Kf1 h1B Kg1 Bb6 Kh2 Bc5 Kh3 Ng2 Qf4 Nh4 Rh2 Bf3 Qf5 Ng2 Qf4 Be2 Qf2 Bf3
1QKb2r1/P1q2N1P/6n1/3Rb3/2p3nB/1q2NP2/kBb1rQR1/B1bBr1n1 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 g5 a4 b5 h4 b3 d4+ Kb4 f3 c5 d6 g3 a5 g2 a6 b2 f6 g4 d7 c4 Ke6 g3 a7 Bh6 d5 Qc7 d6 Nc6 f7 Nf6 f8Q Rg8 h5 Ng4 Rh4 Nce5 Nc3 b1Q Qd2 Kb3 Ba3 b4 Nd1 Ng6 Qf2 Bc1 Nh3 g1N h6 g2 h7 Qb2 Rb1 Ka2 Ng5 b3 Ne3 Qc2 Nf7 b2 Rh3 Qb3 Rh5 Bb7 d8B Be4 d7 Bc2 Be2 Rb8 Kd5 e5 Ke6 e4 Bd1 Rc8 Bh4 Re8+ Kd5 Re7 d8B Re6 Bdf6 Re8 Nf5 e3 Bc3 e2 Ne3 Re4 Qb8 e1B Re5 Bed2 Ke6 Be1 Bd4 Bb4 Bc3 Be7 Bd4 Bd8 Bc3 Rd4 Rd5 Rd2 Bcf6 Re2 Bc3 Bd2 Rc1 b1R Ba1 Bc3 B3b2 Be5 Qb7 Be4 Rc2 Bd3 Rd2 Bc2 Qb6 Nh3 Qb7 g1B Qb8 Bgh2 R2d3 Ng1 Rd2 Qa5 Kd7 Bhf4 Kc8 Bfg5 R2d4 Bh6 Rf4 Bhg5 Rf5 Bgf4 Rg5 Qab6 Ng2 Bc1 Ne3 Bd2 Bc1 Nh6 Rg2 Ng4 Bcb2 Be4 Bc2 Rbe1 Ba3 Bc1 Bd1 Bc2 B3b2 Qc7+
b1R1r2r/4nr2/2n4B/P1R1P1Nr/kb6/nqr1r1Q1/BQpN2NP/K3N3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 Kd7 d4 g5 Kd2 c5 Kc2 f5 Kb2 b5 e4 b3 h6 c4 d6 Kc6 a5 f3 d7 g4 e5 b4 h7 Kb5 d5 g3 d6 f2 Ne2 g2 Be3 g1R Bh6 c3+ Kc1 b2+ Kc2 f4 Nd2 b1N Ra2 Qb6 d8N b3+ Kc1 b2+ Kc2 f3 d7 Bb7 Qe1 Bd5 Ne6 Rg5 d8Q Rh5 Qc7 Bd6 Qd8 Ne7 N6f4 Rg8 Ra3 Bc6 Nd3 Qb7 Bg2 f1R h8N f2 Nf7 Rh8 Ng5 Qb6 Rb3+ Ka4 Nef4 Ba3 Qe3 Re1 Bd5 f1R Ng2 Rf7 Qg3 Re3 Rb5 Bc5 Rc1 Na3+ Kd1 b1R Ba2 Qb7 Nde1 Rb3 Qb6 Be4 Rc2 Bd5 Kc1 Be4 Rb2 c2 Rb1 Rbd3 Kb2 Rc3 Ka1 Qd5 R1b3 Qc4 Rb2 Bb7 R2b3 Nbc6 Rb2 Bd6 Rd5 Bc5 Rd8 Rc8 Rb5 Ba8 Rg8 Bd6 Rd5 Rb8 Qb2 Bb4 Rc5 Qb3 Re8 Rd8 Rf8 Rd4 Rb8 Rdd8 Rc8 Rde8
Q2R4/1b1brB2/2nPR3/Pn3NBB/3b1r1P/2p2NK1/1br1q2B/3Qbk1b w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 a4 b5 e4 g5 d4 c5 h4 f5 a5 g3+ Kg2 b3 e6+ Kd6 e7 f4 e8B g4 Qd2 c4 Qd3 b4 Bd7 b2 Qe2 b3 Nc3 b1B Qa2 b2 Qa4 Rh7 Ra2 Nc6 Nh3 f3+ Kg1 f2+ Kg2 Qe8 Ra3 Bh6 Nf4 Nf6 Ne6 Bd2 Na2 Bb7 Re3 Rc8 Nb4 Re7 Be2 f1R Qd1 Rf4 Ng7 Qh5 Rd3 Ne8 Nc2 Nc7 Be6 Nb5 Bf7 Ba2 Ne1 b1B Rf1 Bc2 Rff3 Ba4 Rfe3 B2b3 Kh1 g2+ Kh2 g1B+ Kg3 Bc3 Bf3 Bb2 Re2 Be3 e5+ Kc7 e6 Bd2 Nf5 Bc2 Kg2 g3 Kh3 g2 Kg3 g1B d6+ Kb8 d5 Ka7 d7 Ka6 d8B Bgd4 Bc7 Bb1 Rde3 Be4 Bg4 Bh1 Rd3 Qh8 Ree3 Qe5 Bgh5 Qe4 Rf3 Qe2 Rfe3 Nc3 Re5 Kb5 Ree3 Kc5 Re4 Nb5 Be5 Rd7 e7 Kb4 e8Q Re7 Bb8 Kc5 Re6 Kb4 Rde3 Rcc7 R3e5 Kc3 Rd6 Rc8 Ree6 Rcc7 Rd7 Rc8 Be5 Rc7 Qa8 Rc8 Nc2 Kd3 d6 Rc7 Rd8 Rc8 Nh6 Rcc7 Ne1+ Ke3 Kh3 Kf2 Nf5 Rc8 Kh2 Kf1+ Kg3 c3 Rd7 Rce8 Rd8 Rf8 Kh3 Rf2 Bh2 Rf4 Kg3 Rg8+ Kh3 Rg2 Nd3+ Be1 Re4 Rfg4 Qc8 Nca7 Qd2 Nc7 Rg8 Qd1 Re6 Bd7 Rd8 Ncb5 Qa8 Nc6 Qc2 Re4 Bg5 Rf4 Qc1 Rc2 Qb1 Bef2 Ne1 Bfe3 Kg3 Qe2 Qd1 Bd2 Nf3+ Be1+
BR2n1n1/bQ3R1p/2P4P/bN2b3/K2Pq1k1/1r2b1r1/NQB2b1R/4rb1R w - - 0 1 illegal: No proof kernel
5r2/1rQ2QrN/2n2nq1/RBKB2P1/2pnP1b1/1P1kb3/3BN2R/r2rn2B w - - 0 1 legal: proof: f4 b5 h4 d5 c4 dxc4 a4 g5 hxg5 e5 fxe5 bxa4 Kf2 Kd7 Ke3 Kc6 d4 Kd5 g4 f5 b3 a5 g6 c5 g7 h5 g5 f4+ Kf2 Ke4 d5 f3 e6 c3 e7 c2 e8B h4 e3 h3 d6 a3 d7 a4 Bf7 h2 Qe2 c4 Bb2 c1N Qd2 a2 Be2 a3 Qa5 Qb6 d8Q Ra7 Qf6 Bg4 Bc3 Nc6 Bd2 Rb7 Be8 Bc5 Qf7 Nf6 g8B Rh7 Bd1 Qa6 Nc3+ Kd3 Qac7 Ne2 Nd5 Ned4 e4 Rg7 Ne2 Ba7 Rg1 h1R Rg2 Rh8 Rh2 Bc5 Bh7 Rf8 Bg8 Nb8 Bb5 Nbc6 Kg3 f2 Kf4 Ne8 Nf6 f1R+ Rf2 Rh1 Nh7 Nf6 Rh2 Ba7 Ng1 Bb6 Bf3 Bc5 Ne2 Rd1 Bh1 Qb6 Rb1 a1N Rb2 Nac2 Ra2 Ne1 Ra1 Nd8 Ke5 Qa6 Ra2 Bb6 Kd6 N8c6 Qe8 Ba7 Bd5 Qb6 Ra1 a2 Qef7 Qa6 Rb1 a1R Rb2 Ne6 Ra2 Be3 Ra5 Ned4 Kc5 Qa8 Qe6 Qe8 Qg8 Qh5 Qgf7 Qg6
b1R5/2rb1r2/2Q1BQ1P/RnQ3Nn/b1QB2pr/P4q2/2KP4/b3Nrrk w - - 0 1 illegal: No possible last move
8/2BB4/bbQQ2rP/2Rrp2b/1B2KNbr/1bN1n3/PkP2n1B/2Rq1r2 w - - 0 1 illegal: No proof kernel
1q2NrnR/2bn4/Pn1Qr1N1/2R4P/3n3N/2nNBpn1/k2KQP1B/4qb2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 Be4 Kd6 Bg2 Kc5 d6 Kb6 Bd5 exd5 Bh6 Kb5 Bc1 Kc6 h4 Kb5 a4+ Kc4 e4 g5 h6 c5 h7 f5 e5 b5 a5 b3 a6 g4 e6 b4 e7 f4 e8Q d4 h5 b2 Qd2 Kb3 Ke2 f3+ Ke1 d3 Qe4 c4 Qe7 g3 Qdg5 c3 Qef6 c2 Be3 c1N Qge5 g2 Nh3 g1N Ra5 Nce2 Nc3 b1N Nd1 Ng3 Rc5 N1e2 Rg1 Ka2 Nb2 b3 Nf4 Nd4 Ng2 Nd2 Nh4 Nc4 Qe8 Qc7 d8N Nd7 Nb7 Ncb6 Kd2 Qb8 Qf4 Be7 Qh6 Bd8 Qf6 Nf8 d7 Bc7 d8B Bh3 Nd6 Bf1 Qee6 Ra7 Ne8 Nfd7 Qc4 Ra8 Qd6 Ra7 Bdg5 Rb7 Bgf4 Ra7 Kc3 d2 Nd3 d1N+ Kd2 Nc3 Qb5 b2 Rg2 Nge2 Bh2 b1Q Rg4 Ng3 Rgg5 Ne7 Rg8 Ra8 Rf8 Rg8 h8N Rg6 Rg8 Re6 N8g6 Qb4 Rh8 Ng8 Ndf4 Qb7 Qe2 Rb8 Ng7 Rf8 Nd3 Qb8 Ne8 Qb1 Nb2 Qa1 Nd3 Qe1+
1q1R4/4RbN1/P1kP2nb/1nN1Bn1n/N1pP2Q1/1Q1N2rK/2n1q3/r1nB4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 b5 f4 h5 Kf2 e5 g4 c5 Kg2 h3+ Kh2 e4 f6 h4 g5 c4 d6 e3 g6 b3 f7 b4 f5 b2 a5 e2 g7 e1N f6 b3 Qg4+ Kc6 Qe2 Nc2 Ra4 Nh6 g8Q Nd7 Qd3 Nf5 Ra3 Qe8 Qgg3 Ne5 Nf3 Ng6 Nc3 b1Q Bf4 b2 Be5 Rg8 Na4 Be6 Ne1 Bh6 f8N Bf7 Qg4 Qb8 Ra1 Qd1 Qb3 b1N Nd3 Nc3 Be2 Nb5 Ne6 Qe1 Bd1 Qe2+ Nf2 Ra6 Nec5 Rg7 Re1 Ra7 Kh1 h2 Kg2 h1N Kh3 Nhg3 Nfd3 Nh5 Rb1 Be6 f7 Ra6 f8N Bf7 Nf2 Ra7 Nfe6 Rg8 Kh2 h3 Ng7 Ra8 Kg1 h2+ Kg2 h1N Kh3 N1g3 Nfd3 Qf2 Re3 Ne2 Rb2 Nc1 a6 Qe2 Bf4 Ra7 Re7 Rb7 Be5 Nba3 Nf4 Rb5 Nfd3 Ra5 Rb1 Nb5 Nab2 Ra1 Nba4 Nb4 Rb2 Qf2 Re2 Nc2 Rd7 Qe1 Rd8 Qd2 Re4 Qe2 Bh2 Re8 Re3 Re4 Bg3 Rf4 Re7 Rf1 Bh2 Rg1 Be5 Rg3+
2N4n/3r1nnP/1q1r1pK1/bk6/1BrBB1Q1/1Q1R1P2/R1rBb1PN/n1r5 w - - 0 1 illegal: No possible last move
4nRQ1/r4P2/Q3r2b/rN3p1k/3r1b2/1b3PbN/nRP1BB2/3RRqrK w - - 0 1 illegal: No possible last move, all moves rejected
rq1R3n/B1N2Pkb/Bq1q4/N2P1p2/1q6/qqNR1Q2/3Pr2b/2Q1K1nN w - - 0 1 illegal: No proof kernel
3N2Q1/n3P1rq/n1B2kpR/n7/1R1rQqP1/Q1n2bn1/2KPn2B/1QNb4 w - - 0 1 illegal: No possible last move
R2r2b1/3P4/qBp2b2/2nnKBnQ/4P1bb/QBN3n1/3k1PRN/Bn5r w - - 0 1 illegal: No proof kernel
BN4BR/b1r3rB/Rb4Np/1n3QK1/Pb1B2P1/3nrqbP/2k5/Qn1n4 w - - 0 1 illegal: No possible last move
3KNN1k/2b1r3/1NB1Pb2/B2P2Q1/Q1PqNnrp/6b1/1Rnn4/R3rbr1 w - - 0 1 illegal: No proof kernel
1b2K1Q1/3b2Q1/n1q3P1/1qRPR3/1k2pb2/3B1nbP/n4nrB/NrBN1B2 w - - 0 1 illegal: No possible last move, all moves rejected
2B3Q1/1qN5/b3pn1k/b3Q1b1/K3bPPB/1N1qr1rq/RB3P2/1n1BqR2 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 b5 axb5 gxh4 Be2 f5 Bf1 f4 exf4 Bg7 Nd2 Bh6 Nb1 Bf8 Kd2 Kf7 b4 Kg6 g4 a5 c4 h5 Kc2 d5 Kb3 d3 c5 d2 c6 a4+ Ka3 e6 c7 d4 b6 d3 b7 h3 Qe1 d1B Nc3 h2 Qd2 h4 Ra2 h3 Nge2 Bc2 Rb2 Nf6 Na2 Na6 b8Q Kh6 Qc3 d2 Ng3 d1Q Nh5 Nc5 b5 Be4 b6 Be7 b7 Nb3+ Qc5 Q8d3 Rc2 Qe1 Bb2 Nd2+ Kb4 a3 Be2 Ra5 Rf1 h1Q Bd1 h2 Nc1 a2 Ng7 a1B Ne8 Ra3 Nb3 Nb1+ Rd2 Bd8 Qe5 Qhf3 Qa8 h1Q b8B Ba6 c8B Qfh3 Bc7 Rh7 Bd6 Rc7 Be7 Rc3 Re2 Bb6 Nc7 Q1g2 Nd2 Rab3+ Ka4 Ba5 Bc1 Bb2 Bd8 Ba3 Bb2 Be7 Qb8 Qdf3 Qa8 Re3 Qb8 Rbd3 Nb3 Rc3 Rd2 Qfe2 Qa8 Qd3 Qd4 Ng8 Na1 Rf3 Bb7 Bh7 Bc1 Qg6 Qe5 Rg3 Ra2 Rce3 Bb2 Qd3 Nb3 Qgd5 Qb8 Be4 Qc8 Bh4 Be7 Bf6 Qd8 Bh4 Bc8 Qb7 Bf6 Ne7 Qg8 Nd5 Bh8 Be7 Bf6 Bd8 Bh4 Bg5 Be2 Nf6 Bf3 Bb4 Bd1 Ba5
3K1Q2/2q3Q1/R1pb2BN/3nqP2/bk4nN/1NrP1PB1/b1n3Rb/rN5n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 Kg5 e5+ Kh5 a5 g4 c3 b6 e4 b7 a4 d3 e3 g5 c2 g6 e2 b3 e1N g7 h3 Bd2 c1B Be2 a3 Be3+ Kb4 Nf3 a2 Bf4 h2 Rg1 h1B Bg3 Na6 b8N Be6 Nd7 Nh6 g8N Bd6 Rg2 Nc2 Qg1 Ng4 Nc5 Bcf4 Nh4 h6 Kg6 h5 Nh6 Qe7 Na3 Rhc8 Nb1 Bd7 Bf3 Ba4 Bc6 Qd8 Kf7 Ra7 Be8 Raa8 Ng6 h4 Ke6 h3 Nh4 h2 Bg6 c6 Kf7 Rcb8 Ke6 Nc7+ Kf7 Kb5 b4 Nd5 Nb3 Rb6 Ke6 Raa6 Kf7 Qc7+ Ke8 Bfe5 Qe1 Bf4 Qe5 Ra7 Qg7 Ra5 Rg1 Be4 f3 h1N Rg2 Rba6 Be1 Bh2 Bf2 Nde3 Be1 Bd5 Bg3 Bc4 Qg8 Nd5 Qg7 Kb6 b5 Ra7 Nc1 Kc5 b6 Kb4 b7 Rb5 b8Q Ra6 Qd8 Rc5 Qde7 Bcb3 Qef8 Rc3 Nd2 Bc4 Ncb3 Ra7 Re1 a1Q Nb1 Bab5 Re7 Ra3 Rd7 Ba4 Rd8 Qb2 Ra8 Ra2 Ra6 Ra1 Nc1 Ba2 Nb3 Qc1 Qh7 Qf4 Qhg7 Qa5 Kd7 Qe5 Kc8 Qb6 Kd7 Qa7+ Kd8 Qc7+
r2k1KN1/1q1b1B2/Rp2qR1Q/2B1RPNQ/r2q1r1n/n1b5/5P1P/5qrR w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 e5 Kd3 c5 Kc4 g5 d4 g3 a4 g4 a5 e4 a6 e3 a7 b3 d6 g2 Kd5 e2 Bd2 e1Q Be2 g3 Bd3 c4 Nc3 b2 Nf3 g1R Ng5 b1Q Ra6 g2 Nce4 c3 Be3 c2 Bc4 Nd7 Ke6 c1Q d5 Ne7 Bc5 Ng6 Qh5 Bg7 Ba2 Bc3 Rb6 Rb8 a8R Rg8 Ra5 Ra8 Rba6 b6 Qh6 Nh4 Bb3 Qc7 Rb5 Ne5+ d7+ Kd8 Nf6 Rf8 Ng8 Qb7 Ba2 Qbb2 Rba5 Kc7 Ke7 Qb4 d8R Qd4 Rd6 Nc4+ Re6 Bd7 d6+ Kc8 Qh5 Na3 Bd5 Qf1 Rf6 Qce1+ Be6 Re8+ Kf7 Re7+ Kf8 Kd8 Bf7 Re4 Rb5 Rf4 Qh6 Bc8 d7 Qe6 Qh5 Qfd3 Qh6 Ra1 Rba5 g1R Rb5 Qf1 Rba5 Kc7 d8Q+ Kb8 Qd5 Kc7 Qf3 Kd8 Qfh5 Ra2 Bb4 Bd7 Re5 Rb2 Bd6 Rb4 Bc5 Ra4
N3n1Kb/4pBnb/3PRb2/qrP3q1/4R3/k1PqN3/1rRRQ3/B1b1Qq2 w - - 0 1 illegal: No proof kernel
3Rnnkr/r2p1qr1/2b1B1q1/P1Rn4/3RBRQK/N1Pr4/3PQ3/b2N3n w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 c5 b4 axb4 Qf3 c4 Bb2 c3 Qd1 cxb2 f4 Kf7 Kf2 h5 Kg3 e5 a4 b5 a5 b3 f6 e4 f5 b4 Be2 e3 Ba6 h4+ Kh3 e2 g4 e1R Bf1 Re7 Qe2 Ra7 Na3 b1R Bg2 b2 Be4 Bg7 g6+ Kf8 g5 b3 f7 Nf6 Rh2 Ne8 Rf2 Qc7 Rf4 Na6 Rg4 Re1 Rc1 b1Q Rf4 b2 Kg4 Rh7 Nh3 Qc4 Nf2 h3 Nd1 h2 Kg3 h1N+ Kg4 Bh6 Kh4 Nc5 Rg4 Kg7 f8R Bb7 Rf4 Qg8 f6+ Kh8 f7 Bc6 Rg4 Ne6 Rf4 Qa2 Rg4 b1N Rf4 Nd6 Rd8 Nc3 f8R Ne8 Rg4 Qb1 Rff4 Qf7 g7+ Kg8 Rg3 Qa1 Rd3 Nd5 Rd4 Rh8 c3 Nf8 Rb1 Qa2 Rb3 Qc2 Rb5 Rf1 Rc5 Rf3 Bf5 Rd3 Be6 Kh7 g8B+ Kg7 Bh7 Qb1 Bhf5 Kg8 g6 Bg7+ Kg5 Be5 g7 Bd6 Be4 Qb6 Rcc4 Bb4 Rc5 Qa6 Nc2 Ba3 Kg4 Bc1 Na3 Bb2 Kg5 Ba1 Kg4 Nh7 Kh4 Nf8+ Kg5 Bb5 Bg2 Kh7 Bg4 Re5+ Kh4 Rg5 B2f3 Qaf6 Be6 Bc6 g8Q+ Kh6 Rb4 Rg1+ Qg5+ Kh7 Rbd4 Qh6+ Qh5 Rg7 Be4+ Kg8 Rb4 Qg6 Rd4 Nh7 Qhg4 Nf8+
kB1B2N1/N1P3b1/Q2q2b1/2rn2pB/1Kn1nP1B/Pb3n2/qQ6/b4RrR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 b5 c4 g5 h4 e5 f4 d5 f6 Kd7 c5 Kc7 f7 Kb7 a3 e4 h6 d3 h5 d4 h7 e3+ Ke1 b3 h6 b2 Qd2 e2 Nf3 b4 Rh4 b3 Qd1 Be6 Kd2 Bg7 f8B Ne7 Nc3 b1Q Ne5 b2 Nd7 Nd5 Nf6 Nc6 Bd6 Rc8 Ng8 Ne5 c6+ Ka8 Nb5 Qa2 Bb8 Qd6 Rh1 b1B+ Bb2 Bc2 Na7 Bb3 Bg2 Bf5 Qf1 Bg6 Bf3 Rc7 Bh5 e1B+ Kc1 Ba5 Bc3 Nf3 Be1 Bc3 Bh4 Rc8 Rb1 Ba1 Qe2 Rf8 c7 Rf5 Nf6 Re8 h8Q Rfe5 h7 Rd8 Qc2 d2+ Kd1 Rd7 Qc8 Rf5 Ke2 d1N Kd3 N1e3 h8B Nc4 Qa6 Re7 Ng8 Re1 Qb2 Rg1 Ke4 d3 Rf1 d2 Kd3 Bc3 Be5 d1N Bf6 Be5 Bd8 N1c3 Rh2 Ne4 Rh1 Ned2 Rd1 Bg7 Rf1 Nf6+ Kc3 Rc5 Kb4 Nde4 Qb1 Qb2 Qc2 Qa2 Qb2 Nd5#
1kr1Rr2/R1qR1Q1P/2Pb4/1p1BB1r1/bPq2R1n/5Nb1/N1rb3K/2q4Q w - - 0 1 legal: proof: e4 b5 d4 h5 g4 hxg4 d5 f5 a4 Nc6 d6 Nb4 exf5 Nd5 a5 Nb6 axb6 cxd6 Ra2 d5 Ra1 d4 h4 d5 f4 Kd7 Kf2 e5 Kg2 g5 b4 a5 c4 g3 c5 g4 h5 d3 h6 a4 f6 a3 f5 a2 f7 d2 b7 Kc7 b8R e4 h7 e3 f6 e2 c6 e1B Nc3 d4 Qa4 d1R Qc2 d3 Be2 d2 Qf5 Bd6 f8R Nh6 f7 Be6 Qg5 Bb3 Qg6 Nf5 Rg8 Ba4 f8Q Nh4+ Kf1 Qe7 Rb6 Rc8 Bb2 Rc1 Qfg7 d1Q Nf3 g2+ Kg1 Beg3+ Bf1 Rc2 Re8 Qe2 Q7f7 Rf8 Qh5 Qc4 Bd3 Qd7 Be4 Qe7 Rf1 a1Q Ra6 Qc1 Na2 Kb8 Bd5 Qc7 Rh2 Bdf4 Bc3 Bd2 Ra7 Bd6 Kf2 g1R Be5 Rg3 Rg2 Rh3 Kg1 g3 Rf2 g2 Rd1 Rg3 Kh2 Rg5 Rff1 Bc3 Rd4 Be1 Rf4 Bd2 Rd1 g1B+ Kh3 Bge3 Kh2 Ng6 Qh3 Nh4 Qg2 Be1 Rdd4 B3d2 Qh1 Be7 Be4 Bc5 Rd7 Bd6 Bd5 Bg3+
Qn4Br/1Pp1K1n1/2R1Pb1n/2PRq2k/7N/1NrQrq2/1nN3qN/B2r4 w - - 0 1 illegal: No possible last move, all moves rejected
NQNq2Q1/2RqpnnK/N3k3/rb2B3/6P1/n2BP2n/2P1r1RN/3q1r1q w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 f5 Bd2 fxg4 Bc1 b5 axb5 g3 Kd2 g5 Nc3 g2 Rb1 g4 Ke1 g3 Ra1 Bg7 Nb1 Be5 Nf3 g1N Ra4 g2 Ra1 Bg3 hxg3 Kf7 Ne5+ Kf8 Nf3 Ke8 Kd2 Kf7 Kd3 d5 b4 h5 e3 a5 g4 h4 b6 h3 b7 a4 b5 a3 b6 h2 Nc3 a2 Bb2 Nh6 Na4 Na6 b8Q Nh3 b7 g1Q Nb6 Bd7 Nc8 Nc7 Be2 Qg3 Rg1 h1Q Nh2 Ne8 f4 Ng7 f5 Qgc7 f6 Ke6 f7 Ra5 Rg2 Bc6 Rb1 a1R Qd2 Qcd7 f8N+ Kf6 Bc3 Nf7 Ne6 Rh7 Rb2 Rf1 Nc7 Ba4 Na8 Ke6 Rb4 Bb5+ Rc4 Rh5 Qd1 Rhf5 Qb1 Re1 Qa2 Rff1 Kd2 d3 Be5 d4 Rc7+ Qd5 Qa7 Qd7 b8N Qd8 Na6 Qd7 Bd1 Qd8 Qb8 Re2+ Kc1 d2+ Kb2 d3 Kc3 Ree1 Be2 d1Q Qc4 d2 Bd3 Re2 Qb3 Bc4 Qa2 Q5d7 Qab3 Nd6 Kd4 Nf7+ Ke4 Qb1 Qa3 d1N Qa2 Nb2 Qab3 Rd5 Qa2 Bb5 Qb3 Nc4 Qa2 Na3 Qb3 Nf2+ Kf4 Nh6 Kg5 Qd1 Kg6 Nh3 Kh7 Nf7 Qc4 Nh6 Qf4 Rc5 Qf8 Nf7 Qe8 Bc4 Qh8 Ra5 Qg8 Bb5
rrQ1b3/kb1n2N1/B1Qb1B2/1Rbp1RK1/3n1b1P/1b1P2b1/1RNR2P1/5b2 w - - 0 1 illegal: No proof kernel
r1Q1nQ1R/4q1R1/1bN1R3/N2KpPpr/1R2PP2/4k1nb/2nqb1rB/1B6 w - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 cxd4 Qd2 f6 Qg5 f5 gxf5 Rh6 Qf4 Rh8 Qg4 hxg4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 b4 g5 b6 a5 b5 e5 h5 g3 h6 d3 b7 a4 b6 d6 h7 a3 Nf3 d2 Rh6 d1Q Nd4 g2 Bf4 g1N Nc6 a2 Bh2 Nf6 Na3 Na6 b8R Nb4 b7 Ne8 Re6 Qd2 e3 Kf3 e4 Qe7 Bd3 Ne2 Rb1 a1R c3 Nc2 Kd5 Ng3 c4 Ra2 c5 Kf4 f3 Ke3 f4 Bd7 Rb4 Rb2 Na7 Bb5 c6 Ba6 c7 Ra2 Kc6 d5 c8Q d4 Kd5 Bb5 Nc6 Ba6 Be2 Rb2 Bd1 Bf1 Be2 d3 Nc4+ Kf2 Bd1 Bh3 N4a5 Ke3 Be2 Qd1 Bf1 d2 Bc4 Qe1 Ba2 d1B Bb1 Qf2 Kc4 Be2+ Kd5 Rg8 h8R Qe1 Rhh6 Rh8 Rhg6 Rh5 Rg7 Ra2 Qc7 Rb2 Rd8 Qc1 b8Q Ra2 Qcc8 Qd2+ Rd4 Qa7 Qb4 Bc5 Qbb8 Qe7 Qb4 Nd6 Rh8 Ba7 Qbb8 Bb6 Qf8 Ne8 Qc8 Ra1 Ba2 Rg1 Bb1 Qe1 Ra4 Rg2 Rb4 Qd2+
1nQ5/5B2/QN1p1n1k/2QRB1N1/3P3r/p1Q2Knr/1b1PR1Pr/b1qb2q1 w - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 f4 exf4 c3 gxh4 Na3 Qf6 Nb1 Qd4 cxd4 Ke7 Ra5 Kd8 Ra1 Ke8 Kf2 h5 b4 f5 e4 Kf7 b6 Kg7 b5 c5 b7 a5 b6 a4 e5 h3 e6 f3 e7 h4 e8Q f4 Qb3 c4 Ne2 a3 Qe5+ Kh6 Nbc3 h2 Nb1 h3 Ng1 c3 Bb2 c2 Bc3 c1B Qc5 Nf6 Bc4 Bb2 Ba5 Be7 Bg8 d6 Bf7 Bg4 Nc3 Bd8 Nd5 Rh7 Re1 Ba1 Kf1 f2 Qbc3 Bd1 Re2 Rh8 Nf3 Ra7 Rg1 h1N Ng5 h2 Re5 Bb3 Ke2 f3+ Ke3 Ng3 Re1 h1R Re2 f1Q Rf5 f2 Kf3 Rh2 Rfe5 Na6 b8Q Bd1 b7 Qg1 Qa8 Nb8 Bc7 Ra5 Nb6 Rb5 Qa6 Rb3 Rd5 Rh7 Kf4 f1Q+ Rf2 Qc4 Re2 Bb2 Kf3 Rh4 Qd3 Qc1 Qdc3 Nc6 b8Q Rh2 Qbc8 Nb8 Kf4 Ba1 Q3a5 Re3 Qac3 Re4+ Kf3 Reh4 Na8 R2h3 Nb6 Kg7 Qd7 Rh2 Q3a5 R4h3 Na8 Ne8 Qdc8 R7h4 Qab4 Kh6 Ba5 Bb6 Qb3 Ba7 Bd8 Bb6 Bf6 Ba5 Be5 B5c3 Nb6 Bcb2 Qbc3 Nf6
b1Q2Brb/r4q1B/1KP2Q1R/2rkp3/P1n1N3/2Rq1pn1/N1RRP1n1/5q2 w - - 0 1 legal: proof: f4 a5 g4 c5 d4 cxd4 b4 g5 fxg5 h5 gxh5 axb4 Kf2 f5 c4 Kf7 a4 Ke6 h4 d5 c5 b5 c6 f4 g6 b3 g7 b2 h6 b4 h7 d3 h5 f3 Ke3 d2 Kd4 b3 Kc5 d4 h6 d3 Qe1 d1R Na3 b1Q Nh3 d2 Qh4 b2 Nc2 Bb7 Nf2 Qc7 Nb4 Qd3 Na2 b1Q Ba3 Ra7 Ne4 Nf6 g8R Bg7 Rd8 Rg8 h8Q Nh5 h7 Ba8 Bh3+ Ke5 Bd7 Ng3 Bf5 e6 Bb4 Qf7 Kb6 Rc1 Rf1 Rc4 Rc1 d1N Rc2 Ne3 Rd6 Qe1 Rac1 Ng2 Bc5 Qf1 Qf6+ Kf4 Rd8 e5 Bf8 Rc5 Rc3 Ke3 R1c2 Kf4 Qe6 Ke3 Qc8 Bf6 Rd6 Bg7 Rh6 Kd4 Bg6 Bf6 Qg7 Kd5 h8R Ne1 Bf5 Ng2 Qg5 Bg7 R8h7 Bh8 Qf6 Na6 Rg7 Nc7 Bh7 Nb5 Rg4 Nd6 Rgh4 Qa1 Rh1 Qc1 Rd1 Qa1 Rdd2 Qd1 Rb2 Qf1 Rbc2 Nc4+
4Rn1B/nr1q4/1PB1qQ2/1N1B2P1/pb4k1/4rpnb/1N2Pb1K/R3q1QB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 fxe5 cxd4 Kf2 Ke7 Kg3 Ke6 b4 Kf5 c4 d5 c5 a5 g6 h5 c6 h4+ Kh3 a3 c7 d3 b5 a4 e6 d2 e7 d4 e8Q d3 b6 a2 g7 Nc6 g3 Qd7 Qb3 d1Q Bg5 d2 Kh2 h3 Bf6 Rh7 Be5 Nf6 g8B Qe1 Qd8 d1Q Qe3 Bb4 Na3 Q1d5 Nf3 Q5e6 Qg1 Na7 Bg2 Kg4 Nd4 Rb8 Nc4 Rb7 Bd5 Rh5 Qf8 Nh7 Nb2 f5 Nb5 f4 Bh8 Re5 Bc6 Re3 Qf6 Nf8 Bf7 Qe5 Bfd5 Qee6 Rd1 a1B Rd4 Qe5 Re4 Qed6 Re8 Q6e6 Nc4 Bd4 Nb2 Bdc5 Qg2 Qc3 Ra1 Qe1 Qg1 Bd4 Kh1 h2 Kg2 h1N Kh2 Nf2 Bh1 f3 Bd5 Qg7 Bc6 Bd7 c8B Ne4 Bd5 Ra3 Bc6 Bf2 Bd5 Re3 Bc6 Rc7 B8b7 Bc8 Bd5 Qgd7 Bbc6 Rb7 Qf4+ Kh5 g4+ Kh4 Qd6 Ng3 g5 Kh5 Qe7 Kg4 Qf6 Qg7 Qc3 Qee7 Rd8 Kf4 Be4 Bh3 Bed5 Kg4 Re8 Qe6 Qf6 Qgd7
bbQ1RrnQ/nn4q1/PpP1RNq1/q3N1k1/2p2r2/2K5/B1N2P2/2B1N2r w - - 0 1 illegal: No proof kernel
1n1KbQ2/3Bb2P/q2p3q/1P1NBb1P/2R1n1R1/N1N4r/qkp1Q2N/2rr4 w - - 0 1 illegal: No possible last move, all moves rejected
5q2/Q1Q2Q1p/2bPQB2/1b1rqK1n/1RNqBP1b/1RN1P1pr/2r4k/5n2 w - - 0 1 illegal: No possible last move
b7/k1Bbb1P1/1n2Q3/2Q1N2K/P2Q1rR1/pqqPrrNp/2Qn4/RBn5 w - - 0 1 illegal: No proof kernel
k1K1qrbQ/r1RQP2B/r2Np1p1/1N1P2B1/1Rn5/Pq5n/R1q2b2/1R2b3 w - - 0 1 illegal: No possible last move, all moves rejected
1bB1bqr1/N1n1P3/2pB4/1rp2QP1/2Nkq1PQ/1b1N2RN/R4K1n/6qr w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 a4 exf4 axb5 d6 c4 Ne7 c5 dxc5 Rh2 Ng8 Rh6 Qd3 Rh1 Qd8 e4 Ke7 d4 Ke6 b4 h5 e5 Kd5 b6 a5 g3 f5 b5 f3 e6 a4 b7 a3 b6 a2 Kf2 f4 Bd3 h4 Bh7 h3 Bf5 h2 Qe1 Ra5 Nh3 Rb5 Nd2 Nf6 Rg1 h1R Nc4 Bd6 e7 Na6 b8N Qf8 b7 Rg8 Nc6 Bd7 b8Q Be8 Na7 c6 Bc8 Nc7 Qf1 Ke4 d5 Kd4 Bd2 Be5 Qb1 Bd6 Qf5 Be5 d6 Ng4+ Kf1 f2 d7 Bd6 d8N Nh2+ Ke2 f1B+ Kf2 f3 g4 Be2 Bf4 Bd1 Nf7 Bb3 Rg3 Be5 Qc2 Bd6 Nfe5 Qf5 Nd3 Qe4 Rb1 a1Q Rb2 Ne6 Qa8 Bb8 Ra2 Nc7 Bd6 Qc1 Qb1 Qcf4 Qf1 Qf8 Qe1 Qd5 Qe6 Qe4 Qf5 Rh8 Qe6 Bf7 Nce5 Qg7 Bb7 Bh5 Qh6 Rg8 Nc4 Be8 Qh4 Qf8 Ba6 Nd5 Bb7 Bc7 Qc8 Bb8 Qf5 Nc7 Bc8 Rb4 Rg2 Rb5 Kg3 f2 Rg1 f1Q Rgg2 Qd1 Kf2 Qa1 Rg3 Qg1+
4B3/1rbnp2P/KQBpB1r1/1N2bnk1/Nr4B1/q2PP1n1/3q1R2/QR2q3 w - - 0 1 legal: proof: c4 b5 b4 g5 f4 a5 fxg5 axb4 Nc3 b3 Nb1 b4 Qc2 Bb7 Qd1 Ba6 g4 h6 g6 Bb7 g5 Ra5 g7 Qc8 g6 Ba6 Bb2 Bb5 cxb5 Ra8 Bf6 Qd8 Bg5 hxg5 a4 c5 h4 f5 a5 f4 a6 b2 a7 f3 e3 c4 b6 c3 h5 f2+ Ke2 g4 Kd3 c2 Kc4 c1Q+ Kb5 b3 b7 g3 h6 g2 h7 Nh6 g8B Nf5 Rh4 Bg7 Be6 Be5 g7 Rg8 Nf3 g1B Bh3 f1N Rf4 Bh2 Bg4 N1g3 Nc3 b1R Nd4 Qa3 Rf2 b2 Na4 Bc7 Qf1 d6 d3 Nd7 Ka6 Rb8 a8B Qc8 Bb3 Qd8 Bc2 Kf7 Nb5 Kf6 Bb3 Kg6 Bf7+ Kg5 Qe1 Qf8 Be8 Qf6 Qa5 Qfc3 Qb6 Qd2 Qa7 Rf8 g8B Rf6 Be6 Rg6 Qd4 Rg1 Raf1 b1Q Qa1 Qbb4 Rc1 Qe1 Rd1 Qbd2 Rb1 Rf1 Re2 Rf4 Rf2 Rd8 b8Q Rb4 Qa7 Rb8 Bc6 Rb7 Qc5 Nh5 Qcd4 Be5 Qb6 Nhg3
1k2K1n1/bq1P1p2/1N2r1P1/3q1Q2/r2b1R2/1N3bpn/P2N1B1n/2NBRQr1 w - - 0 1 illegal: No proof kernel
Bqk1BB2/1p3b2/6Rn/5r2/1BPP1NQK/3qbQ1p/R3Pn2/Nbr2r1q w - - 0 1 illegal: No proof kernel
2B2bBn/PP2qprQ/1p4Br/Q3P2n/2k1bK1N/1qb2R2/5r2/1qN2RB1 w - - 0 1 illegal: No proof kernel
2n2B1Q/p1r2QqN/2NqKQ2/6P1/r5P1/2b2bkn/Rp2P2r/Qb1R1q1B w - - 0 1 illegal: No proof kernel
nK3R2/pR2p1Q1/bq2Bnr1/1Q1b4/1q2NB2/kq1rR3/P2PN2P/1n2r1R1 w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g5 Bd3 Bh6 Ba6 hxg4 Bf1 g3 Bh3 g4 Bf1 Bg5 fxg5 Rh6 Bd3 Rh3 Bf1 Rh8 Ke2 Kd7 Ke3 Kc6 Kf4 b5 Ke5 f5 c4 f4 g6 g2 g7 e3 Bb2 g3 Qa4 e2 Qa3 e1R+ Be2 f3 Nc3 b4 Qa5 f2 Rb1 f1B Ne4 b3 Bg4 Nd7+ Ke6 Bb7 Ne2 g1Q Be5 b2 Bf4 Qe3 Rg1 Ngf6 g8Q g2 Qg7 Nb6 Bf5 Rh6 Qb4 Ba6 Qb5+ Kb7 Bh3 Qb8 Bf5 Rg6 c6+ Kc8 c7 Kb7 c8R Qb3 Rf8 Qb4 Rc1 b1N Rc3 Qb3 Re3 Qd6+ Kf7 Qdb4 Be6 Rd8 c5 Rd6 c6+ Kc7 N2c3 Bc4 Ne2 Bd5 Rb8 Na8 Rb7+ Kd8 Rf1 g1Q Kf8 Qf2 Rg1 Rd7 c7+ Kc8 Rc3 Qb6 Re3 Bc6 Bc4 Rd3 Kf7 Kd7 c8R+ Qc7 Rf8 Qd6 Rbb8 Qb6 Be6+ Kc7 Qa5 Bd5 Rb7+ Kc6 Qb4 Nh5 Ke8 Qdc5 Qc4 Q6b4 Kd8 Nf6 Kc8 Qb6 Qc3 Kb5+ Kb8 Ka4 Qc4+ Ka3 Qb5 Qcb4
1Q1BN3/1RB1KB2/3p2PQ/2Pn1NB1/2p1r3/r1n1r2R/b2bb1Pr/k3r2q w - - 0 1 illegal: No possible last move
Q4r2/nr2r3/QRP1p3/3P1q1K/B2RBb2/1N1BPb1B/np1n1n1n/2N1k3 w - - 0 1 illegal: No possible last move
qRr4k/2n5/1P1n1pKP/1N3b1B/QBb1r1nb/1B2b3/2R1PNbp/2BQ4 w - - 0 1 illegal: No proof kernel
b1Bb1n1b/bn4Nb/NPK1p2Q/N1Pr1R2/4k3/5RBr/p2PNQqn/8 w - - 0 1 illegal: No proof kernel
Rn1bq3/1rNr3n/pBNBQ3/1P1b1b2/5Nb1/R1Kp4/PQ2P2b/N2r1k2 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 g5 cxb5 e5 d4 Nh6 Bh3 Ng8 dxe5 gxf4 g5 Rh7 Bf5 Rh8 Bg4 hxg4 Kd2 Ke7 h4 Ke6 b4 Kf5 h5 Ke4 b6 f5 b5 d5 h6 c5 g6 g3 g7 c4 e6 g2 b7 f3 h7 d4 e7 f2 e8Q+ Be7 Bb2 f1B Qe1 f4 Bc1 a6 Qg6+ Bf5 Rh3 f3 Ba3 f2 Qc1 Ra7 Bd6 Qe8 Qb2 Nf6 g8N Bd8 Ra3 d3 Nh3 g1B Kc3 Ke3 Nf4 Bg2 Ne7 f1B Ned5+ Kf2 Nd2 Bh2 Nc7 Bd5 Rc1 B1h3 Nb3 Bhg4 Na1 Rg8 h8B Rg7 Qf7 Nh7 Qe6 Rd7 Rc2 Kf1 Bd4 Bg1 Bb6 Bh2 Kd4 c3 Rc1+ Kf2 Rg1 c2 Rg2+ Ke1 Kc3 Kf1 Rg3 Nc6 b8N Rb7 Re3 Nd4 Nc6 c1R+ Qc2 Rb1 Qb2 Rd1 Rh3 Nf8 Rh8 Nh7 Ne7 Nc6 Rf8 Nb8 Nc6 Bg1 Rf7 Bh2 Na8 Rdc7 Rd7 Bh4 Rd8 Rd7 Rc8 Be7 Nc7 Bd8 Ne5 Nc6 Ra8 Nb8 Nc6 Bh1 Nfd5 Bhe4 Nf4 Bd5
1br2rn1/rQ1B3P/Q1R1b3/4PkBQ/2P1R2p/p1nN1K1q/rN6/1r2b1Q1 w - - 0 1 illegal: No proof kernel
K1b1q3/3QbP2/n1nN4/N2RB3/Qrp1BP2/b3P1b1/R2Nkp2/3rnN1b w - - 0 1 illegal: No proof kernel
KR2b3/4NpP1/4rPr1/qN1rP2R/1nb4N/Q2Br1rQ/N4n1p/2B3kb w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 cxb5 Bc5 a5 Bb6 axb6 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kc5 Ke4 f4 d5 g4 a5 f5 h5 f6 h3 g5 a4 g6 h2 e3 h4 b7 d3 b6 d2 b5 a3 g7 h3 Nf3 a2 Bc4 d4 Qe2 d1R Qc2+ d3 Qb3 d2 Ne1 Bd7 Na3 Rh6 Nb1 Ra3 Qb4 Nc6 b8Q Be8 b7 Rg6 b6 Nh6 Nf3 Ng4 Nh4 Nf2 Qc8 Ra6 Qa3 Nb4 b8N c6 b7 Qa5+ Kd6 c5+ Nc6 Rdg1 b8N d1B Qc7 Be2 Qc8 R1g3 Qd7 Rb6 Kc7 Bf1 Ne7 Re6+ Kb7 Be2 Rd1 h1B Nbc6 h2 Nd4 Bf1 Be2 c4 Nb5 c3 Rd5 c2 Bc4 Be2 Rh5 Bd3 Na7 Be2 Ka8 Bf1 Ba6 Bb5 Qc8 Bc4 Nc3+ Kd3+ e4 Kd4 Bh6 c1R Rb1 a1R Na2 Rcc3 Bc1 Rcf3 e5 Re3+ Ng2 Ke4 Nb5 Kf3 Nh4+ Ke2+ Qc6 Kf1 Qf3 Kg1 Rb3 Rg2 Qh3 R6g3 Rd3 Rb1 Rd8 Rb2 Rc8 Rd2 Rb8 Rd5 Na7 Bb3 Be2 Bc4 Bd3 Qc5 Nb5 Rg6 Bc2 R2g3 Be4 Qc7 Bd3 Qa5+
kBbrQnn1/3P1b1K/5NQ1/2Rq2p1/N4bP1/1p4nb/1RbR1P2/rR3B2 w - - 0 1 illegal: No proof kernel
2R1n1r1/r2P1KR1/r5Q1/1qP1rp2/2NN1PbB/R4R1Q/3r1p2/1nb1k1nB w - - 0 1 illegal: No proof kernel
3B2kr/R1NP4/p3K1Bb/1nP1NqBb/n2pnR2/2Prn2B/4n2Q/rQ6 w - - 0 1 illegal: No proof kernel
bq2Q2n/rP4Q1/N1r1nb1r/K1P2N1R/1RB1n1p1/2N2pBr/1N3P2/k5r1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 hxg4 h4 Kd7 c4 Ke6 d4 a5 Kd2 f5 Kc3 g5 h5 g3 h6 g2 d5+ Ke5 b6 g4 h7 e3 d6 f4 c6 f3 c5 a4 Kb4 a3 d7 e2 c7 e1N Ra2 Bg7 Rh6 Bf6 Qd3 Ra7 Ne2 g1R Qd2 Nc6+ Kb5 Nd3 Rh2 Nf4 Rh6 Bb7 c8N Ba8 b7 Ne6 Nb6 Qb8 Rh3 Ncd8 Nbc3 Nf7 Rb2 a2 d8N a1R Ng3 R1a6 Qe1+ Kd4 Nc4 Rc6 Rb4 Rh1 Rh5 Rh3 Bg2 Kd3 Bf1+ Kc2 Be2 Be5 Bd2 Nf6 Nf5 Ne4 Nb2 Bg7 Bf4 Bf6 Ncd1 Kb1 Bg3 Ka1 Bc4 Rg8 h8Q Rg6 Qh7 Nh8 Qg7 Rh6 Qe3 Nf4 Nc3 e5 Nf7 Ne6 N7d6 Nd2 Ne8 e4 Qe2 e3 Nc7 Ne4 Na6 Be7 Qc2 e2 Ka5 e1R Qd2 Rf1 Qd8 Bf6 Qe8 Rg1
3qb1nN/1PB2B1p/1R2B2k/1b1N1Prp/1B2QKr1/Pr2n3/2b5/QR1bb3 w - - 0 1 illegal: No proof kernel
2bKQ3/P3bPbN/6q1/1bBBpR1n/NRrp4/1rQ1N1rP/4k2b/N6n w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Ke3 Kf6 Kd4 b5 Kd5 e5 a4 g5 c4 d6 f4 b3 c6 b2 c7 b4 a5 g3 h3 g4 a6 b3 a7 g2 c5 g3 c6 Nd7 Qd2 Nh6 Na3 b1B Nc2 b2 Nf3 g1B Ne3 g2 Bc4 Nb8 Ra4 Rg8 Nd4 Bd3 Qc3 b1R Ndc2 Rg3 Ba3 Bg7 Bc5 Ng4 Rb4 Qe8 Na1 Bh2 Rf1 g1B Rf2 Nd7 Ba2 Bb7 c8N Rb3 Nb6 Rc8 Na4 Qg6 Rf3 Bba6 c7 Nf2 Kc6 Nh1 Rf2 d5 Rf1 Ra8 c8Q Bdb5+ Kc7 d4 Qg8 Bc8 Kd8 Bf2 Qe8 Rb8 Qe1 Rc3 Bd5 Rc4 Qc3 Be1 Rf2 Bd2 Rf1 Bc1 Rf2 Ba3 Rb3 Rg1 Bb6 Bc6 Rf3 Baf8 Bc5 Rg3 Rb2 Rb3 Rb1 Ra3 Rb4 Bb5 Rf2 Rb3 Rf1 Bh8 Rf3 Kg7 f6+ Kh6 f5 Kg5 f7 Bhg7 f6 Bd6 f8N Be7+ Kc7 Ra3 f7 Rb3 Nd1 Nf6 Ne3 Nh5 Rf1 Nf2 Nh7+ Kf4 Rc1 Nh1 Re1 Rg5 Rf1+ Kg3 Rf5 Rg4 Bf3 Kf2 Ba8+ Ke2 Bd5 Bd6+ Kd8 Rg3 Nf1 Bdf8 Ne3 Be7+
nkr5/2N1bQ2/r1b4P/q1bRpbBP/B5R1/3r1p1n/3P2K1/Q1nQ1Q1N w - - 0 1 illegal: No possible last move, all moves rejected
b1K5/1q2rrNP/4Pr2/2r1kb1Q/1pR2nQ1/p3bnB1/PN1B4/1N3nRN w - - 0 1 illegal: No possible last move
Q5qr/1n1BNb1p/p1R3b1/3B1rBn/3nPB2/P2Qr3/nkP3K1/b2R3N w - - 0 1 legal: proof: f4 c5 h4 e5 b4 exf4 bxc5 d6 cxd6 g5 Bb2 gxh4 Ba3 Nc6 Bc1 Nb8 Kf2 Kd7 d4 Ke6 g4 Kd5 d7 Kc4 d5 b5 d6 f5 g5 f3 g6 b4 a3 b3 g7 a6 Rh2 f4 Nc3 h3 Ne4 b2 Rh1 b1N Ng5 Kc3 e3 h2 N5h3 Nf6 g8B Nc6 Be6 Nh5 Qe2 Na5 Bb3 Nb7 Qb5 Bg7 Bd5 Qg8 d8Q Bf5 d7 Bg6 e4 Rc8 Bfc4 Rc7 Kf1 f2 Kg2 f1R Nf2 Rc5 Bb3 Re1 Nf3 Re3 Nd4 Be5 Bd2+ Kb2 Qa8 Nc3 d8B Na2 Nc6 Bc3 Rhd1 h1N Ne7 N1g3 Qd3 Ne2 Ba4 Nd4 Bd7 Ra5 Nh1 f3+ Kh3 f2+ Kg2 Rb5 Rg1 Rc5 Rad1 Ra5 Bc7 Rc5 Bf4 f1B+ Kf2 Be2 Kg2 Bg4 Rgf1 Be6 Bg5 Ra5 Rf6 Bef7 Rc6 Rb5 Bb3 Re5 Bd5 Rf5 Bc1+ Kb1 Bf4 Ba1 Bd2+ Kb2 Bg5 Ref3 Bdf4 Re3
b1nrN1r1/2Qpkb1N/8/2b4Q/2nn1N2/2bBqNP1/pRK1P1P1/2BRr3 w - - 0 1 illegal: No proof kernel forced: bxLB
4KQn1/PB1p1RbB/1k3b1P/4r2P/p2b1B2/4RB1Q/2n2rnN/2rN2qb w - - 0 1 illegal: No proof kernel
3b2Bn/p2rN2R/k7/1qBBP2b/1B2PP2/npr1br1n/Q3r1QK/2R3N1 w - - 0 1 illegal: No proof kernel
1K1Q3Q/pn1r1q2/2knnnN1/2P1P1P1/2b4r/2pRbrQ1/1B1b1NR1/1B4Q1 w - - 0 1 illegal: No proof kernel
2RBq2b/rn1k1p2/n4Q1P/1RP2rq1/1p2n1n1/6Pb/3B1nB1/B1KQN1N1 w - - 0 1 illegal: No proof kernel
Q3rbK1/BBnrPq2/1r4pR/Q5q1/N1B1N1PB/r2r2bn/1Pp2R2/3k4 w - - 0 1 illegal: No extended proof kernel
1Qb3bB/1qr3R1/7Q/R3pNN1/1kq2n2/5np1/B1PnP1Pr/1n1bK1BB w - - 0 1 illegal: Other
Bq6/1Nrnn1Bk/b1Q1r3/1QKpB1b1/3R1q2/4B3/rPP1PRp1/3bNb2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 h4 f5 h6 Kf7 h7 Kg6 b6 d5 b7 a5 Bh3 g4 Qd2 a4 Na3 d3 Nb5 f3 Ke3 g3 Kd4 g2 Qc3 f4 Nd6 d2 Kc5 d1B Be3 f2 Nf3 f1Q Bd7 a3 Bc6 a2 Ne1 Ne7 h5+ Kh6 Rh3 Ra6 Rf3 Qe8 Rf2 Nd7+ Kd4 Ra7 b8Q Ba6 Ba8 Rc7 Qb5 Qb8 Nb7 Rg8 h8B Rg6 Qcc6 Re6 Be5 Kh7 h6 f3 Rc1 a1R Rb1 Kg6 h7 Bh6 h8B Kh7 Bhg7 Ra2 Rc1 Bg5 Ra1 Qg1 Kc3 Qh2 Kb4 Ra5 Ra3 Qg3 Rd3 Ra2 Rf1 f2 Rd4 Nb6 Kc5 Qh4 Rh1 f1B Rh3 Qh6 Rf3 Qh4 Rf6 Qg4 Rf3 Qf4 Rf2 Nd7+
r7/1r1r2qn/5QNR/nKP5/2RR2QP/rPq1p1Nb/1kpBBb2/q2R4 w - - 0 1 illegal: No proof kernel
RQ2nq2/rB1b4/2n2nRb/P3rN2/5KRR/k3Pp1B/pbq2PN1/n5Q1 w - - 0 1 illegal: No proof kernel
4bK2/QN2n1n1/rr2B1qP/2B2qRp/R2b3N/1P1Q3P/2brp3/rNN2k2 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 g5 h5 Bd3 Qb6 Bf1 Qh6 gxh6 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 Kf7 f4 Ke6 c4 Kf5 b6 e5 h3 g5 c5 a5 b7 d5 c6 d3 Ke3 a4 b3 a3 c7 a2 Rh2 d4+ Kd2 e3+ Ke1 Ke4 f5 e2 Kf2 e1Q+ Kg2 g4 f6 g3 f7 d2 Na3 Ke3 Rb1 a1R Qg4 e4 Bc4 d3 Qf5 Nf6 Ne2 Bd7 c8N Nc6 b8Q Bg7 f8N Ne8 Ng6 Ne7 Nh4 Bd4 Nd6 Ra6 Nb7 Ng7 Qa7 Rb8 Be6 Be8 Rh1 Qd1 Rg1 Qc2 Bb2 Qc5 Nc1 d1B Qf1 d2 Qd3+ Kf4 Bc3 e3 Bb4 Qf5 Bc5 e2 Rb2 Bc2 Nb1 d1R Ra2 Rd2 Ra4 Qg5 Na5 Rbb6 Nb7 Ke5 Kf3 g2 Bc8 Kd5 Bd7 Qg6 Kf4 Qf7+ Kg5 Qf1 Qc4+ Ke4 Be6 Ke3 Qd3+ Kf2 Bf7 Nc6 Kg6 Ne7+ Kh7 Ke1 Be6 Kf2 Rh1 g1Q Kh8 Nef5 Kg8 Ne7+ Kf8 Qgg2 Rg1 Qg6 Rg5 Ke1+ Qf3 Qf2 Qf5 Kf1 Qf3 Bf7 Qg3 Qff5 Qd3 Be8+
KQ4rN/n1BRr1B1/2Nn1qP1/2b1p3/3qk3/1N3rRp/qP3q1P/2Q3Nb w - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 cxd5 g6 a4 Nf6 axb5 Ng8 Be2 Qd6 Bg4 fxe4 f5 Qd7 f6 Qd8 Bf5 gxf5 Ke2 Kf7 Ke3 Kg6 Kd4 h5 Kc5 e5+ d6 a5 d4 f4 g4 e3 d5 e2 g5 Kf5 b6 e1Q f7 h4 b7 a4 g6 h3 Be3 f3 Bg5 a3 Be3 f2 Qd2 f1R Kb5 c5 d7 a2 d6 c4 Bc5 c3 Qc1 c2 Nd2 Rh7 Nb3 Nc6 b8Q Ke4 Bb6 Nh6 Bc7 Qf6 Kb6 Bb7 d8N Rf3 d7 Na7+ Nc6 Nf5 d8N Nd6 Rb1 Be7 f8B a1Q Bg7 Qa2 Nf7 Bf8 Nh8 Qd1 Qd2 c1Q Qc3 Qcf4 Qc1 Qe2 Ra1 Qb1 Ra3 Qa2 Ne7 Bd5 Nc6 Qf2+ Ka6 Ne8 Kb7 Bc5 Ne2 Q4e3 Rd1 Qc3 Ng1 Qcd4 Bf8 Re7 Bg7 Nb5 Qa7 Rd8 Qb8 Ned6+ Ka8 Rg8 Rd3 Rf4 Rg3 Rf3 Ra5 Na7 Rb5 Qda4 Rb7 Qc4 Ba5 Qcd4 Rd7 Bc4 Bb6 Bf1 Ba5 Bg2 Bc7 Bh1
b1rr3b/1N4bR/Nq2kPQn/B3b2B/2PP4/5qQ1/1Rp1qn1p/2BBK3 w - - 0 1 illegal: No proof kernel
nr4r1/q1r2bk1/1QQ1p2p/P1Nn4/2R2N1B/R2n3P/P1qK1Rb1/3B1r1R w - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 bxa5 e6 f4 Bd6 f5 Bf4 g3 f6 e5 fxe5 gxf4 e4 c4 Kf8 f6 b5 f7 g5 f5 d5 h3 e3 c5 b4 c6 g4 c7 b3 Ba3+ Qe7 Bd3 g3 Ne2 b2 Qc2 g2 Qc5 h6 Rg1 Ra7 Bc4 d3 Qb6 d4 Rf1 g1R Qb5 d2+ Kd1 Nd7 Re1 Nb6 Nf4 Kg7 f8R Na8 Nc3 b1B Be2 Nf6 Ne4 Bb7 c8R Nd5 Rc4 Rg5 Rf6 Rb8 Qb6 Bc6 Bg4 Rc7 Nc5 Rg6 Ke2 d1R Rh1 Bc2 Rb1 Rf1 Rb3 Be8 Bc1 Bf7 Ra3 Be4 Bd2 Rg5 Be1 Bg2 Bh4 Qd7 Kd3 e2 Kd2 e1N Bd1 d3 Rg6+ Kh8 f6 Rg4 Rg5 Qe7 Rf5 Rgg8 Ne4 Qc5 Qc6 Qa7 Nc5 Bh5 f7 Kh7 f8Q Bf7 Qfe8 Kh8 Kc1 Kg7 Qb6 d2+ Kb2 Rf8 Qc6 Nd3+ Kc2 Rg8 Re5 Rcc8 Re2 Rc7 Rf2 Nf6 Be2 d1Q+ Kc3 Qb1 Bd1 Nd5+ Kd2 Qc2+
1RRKn3/rN2rk2/q1NP2p1/3rn3/2n1Q2B/3bp1q1/Qb3PP1/Q1BQn3 w - - 0 1 illegal: No proof kernel
6R1/1n1R4/2P1k2K/pQ1bNp2/q1r1q2r/2NP1bqQ/Pr5B/1qNN1n1B w - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 Kd7 c4 b5 d3 h5 c6+ Ke6 g7 f5 g6 a5 c7 h4 c5 b4 c6 h3 Bg2 h2 Ba3 f3 Ke3 f2 Kf4 f1R+ Kg5 e3 Nf3 b3 Nfd2 b2 Qc1 e2 Qc3 e1Q Qc5 Qe4 Qb5 Qdd4 Nb3 Nh6 g8N Na6 g7 Ng4 Bd6 Qa4 Nc1 Rh4 Nh6 Rb8 g8N Rf4 Nc3 b1Q Nf7 Ne3 Nf6 Nc5 Ne5 Nf1 Nfd5 Nb7 Nd1 Bd7 Rg1 h1B N5c3 Be8 Bf3 Bh5 Kh6 Bf7+ Bh5 Bf3 c8Q+ Kf6 Rg7 Bd5 Qh8 e6 Nc4 e5 Rd7+ Ke6 Qh7 Qe1 Qh8 e4 Ne5 e3 Bc7 e2 Bd6 Rc4 Qh7 Rhd4 Bg4 Bh1 Bf3 Qg3 Be4 Bf3 Qh8 Bh5 Bh1 e1Q Qh7 Bhf3 Bc7 Qb2 Rb1 Qa1 Rb2 Rf4 Rg2 Qe4 Qh8 Qb1 Bd6 Qge1 Rg8 Qg3 Kh7 Nd8 Qb2 Rcb4 Bc5 Qee1 Bg1 Rbc4 Bh2 Qe4 Qb6 Rb7 Qc5 Rb2 Qb5 Qf2 Kg6 Nb7 Qh3 Qg3+ Kh6 Rh4+
Q4r1N/R1n1b1kq/2PP4/1rN1R1p1/B2bbn2/r5Q1/RB1Rq1Pp/1K3b2 w - - 0 1 illegal: No proof kernel
2n3b1/Nkrq3R/1P4pN/4K1RP/nR6/Bp1R1qbr/b3B1Pr/2b1Q1Q1 w - - 0 1 illegal: No proof kernel
4r1Q1/4k2n/1p4BP/1qb2q2/3R4/1p1BrqBq/nRBPbPN1/QKN3r1 w - - 0 1 illegal: No proof kernel
B4KR1/N7/bp1P1R1N/1Pq1nrQQ/bp2nN1r/bq3nB1/2n3P1/N1k5 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 e5 c4 exf4 cxd5 Nc6 b5 Nb8 Qb3 Na6 Qc3 Nb8 Qb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 a4 Kb3 e4 Kc2 a5 f5 g6 h5 d6 b6 d5 f3 d7 h4 Ke6 f2 Kf7 c4 e5 f4 d6 c3 e6 h3 a6 h2 a7 f3 g7 Ba6 e7 Nh6+ Kg6 Nc6 e8Q Nf5 Kf7 Rh4 g8N Bg7 Nh3 Ne3 Nh6 Ne5+ Kg8 Qf6 d8N Qe6+ Qf7 Qb3 Bc4 f1B Qh5 f2 Nf4 Bd3 Bd5 f1N Nd2 Bf5 Rg1 h1N Qg5 Nh2 Rf1 Rb8 a8Q Nhf3 Rf2 Bh8 Kf8 Ng3 Ra3 Rb7 Nc6 Ne4 Qe8 Bg6 Na7 Rf7+ Kg8 Bh5 Ba8 Rf5+ Qf7 Kd1 Kf8 c2 Bb2 c1Q Bc3 Qa4 Nb3 Nc2 Na1 Qb3 Be1 Qce3 Ra5 Qc5 Rf1 Kc1 Bg3+ Nfe1 Rf2 Bd1 Ra2 Bf6 Qfh5 N1f3 Ra3 Qb1 Rd3 Qb3 Rd4 Nf7 Rd5 Bb2 Re5 Ba3 Re6 Qc6 Rf6 N7e5 Re2 Qcd5 Re3 Qc5 Rc3 Qe3 Rc7 Qg1 Rg7 Qc5 Rg8 Qb2 Nd5+ Ne3 Ng4 Ba4 Nh6 Qb3 Nf4 Nc2
5N2/r3KNr1/pn3R2/P1r1BP2/np2RqPn/1Qr1q1k1/b2N4/Q1NB2b1 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 Kd7 Ke3 b5 Kd4 e5+ Ke3 h5 g4 h3 a4 h4 f4 a6 d4 b4 d6 Ke6 d7 h2 a5 h3 c6 Ne7 c7 Ra7 Na3 Rh7 Nc2 Ng6 Bg2 Bc5 Ne2 Qg5 Bf3 Rg7 Re1 h1R Na3 h2 Bb2 Nh4 d8N+ Kd5 Qc1 Be6 c8Q Nd7 Nc4 Nb6 Nf7 Rg1 Qh8 h1R Qc3 Rh3 Nc1 Rg2 Qb3 Rc2 Nd2+ Rc4 Kf2 Qh6 Be2 Rc3 Bd1 e3+ Kg3 e4 Rf1 e2+ Rf3 Kc6 d5+ Kc7 Kh3 e1N d6+ Kd7 Ra2 e3 Rf2 Kc6 d7 Kd5 d8N Nd3 Ba1 e2 Kg3 Bd7 Ne6 e1Q Nf8 Be6 Rc2 Qe2 f5 Be3 Rf4 Nb2 Re4 N2a4 Bb2 Qf4+ Kh3 Rd3 Bf6 Rc3 Be5 Qff1+ Kg3 Bf2+ Kf4 Qd3 Ng6 Bg1+ Kg5 Qf4+ Kf6 Qdf3 Nf8 Q3e3 Qb2 Rc8 Qg8 R8c5 Qa1 Rd3 Rcc4 Rc3 Rcd4+ Kc6 Rd8 Ba2 Rc8+ Kd5 Rc6 Nd7+ Ke7 Ndb6+ Kd8 Qd4 Rf6 Qde3 Ke8 Na8 Rc4 N8b6 Nd6+ Kc6 Rd4 Rab7 Qb3 Ra7 Rc4 Kd5 Nf7 Qed4 Nb1 Ke4 Nd2+ Ke3 Rd6 Kf2 Rf6 Qde3 Re4 Kg3 Kd8 Ra8+ Ke7 Ra7+
3Rbq2/2kB3P/4q2q/6rR/2b2p1P/QKn1N1N1/BP1r1BpB/1Q2qnb1 w - - 0 1 illegal: No possible last move, all moves rejected
2Q1q2q/3QN2P/6Br/Kb1pRPbp/3B1r2/1B2P1qB/nNnk4/r1R1q3 w - - 0 1 illegal: No proof kernel
3rR1r1/2nn2P1/4n3/RKQ1pb1p/1Br1B2P/2Q2q1N/N1P1k2q/2RR1br1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 Ra5 gxf4 Ra3 Bb7 Ra1 Bc8 e3 d5 Bd2 d3 Ra4 d4 Kf2 Bg7 Bc1 d2 Ra6 d3 Ra1 Bd4 exd4 Qd6 Qe1 Qd5 Qd1 Qd8 h4 Kd7 g4 Kd6 b4 Kd5 b6 Ke4 g5 h5 d5 f5 g6 e5 g7 a5 d6 a4 d7 a3 b5 a2 b7 f3 b6 f4 Nh3 Na6 b8Q Nc7 b7 Nf6 Ng1 Ra4 Bh3 Rc4 Be6 Rg8 Ba3 Qf8 d8R Nd7 Qf1 d1R Qa7 d2 b8R Rc1 Bh3 d1R Bg2 Qb4 Qa5 Qd2+ Qe2+ Kd4 Nh3 Rg1 Nc3 Rcd1 Rc1 a1N Rb5 Nb3 Re8 Nbc5 Bb4 N5e6 Na2 Bb7 Bd6 Be4 Bb4 Bf5 Qa3 Qc3 Qf1 Rd2+ Ke1 Ke3 Ra5 Qd3 Qb2 Qd4 Qc3+ Rd3 Rd1 Qd6 Rd2 f2+ Kd1 Qc5 Be4 f3 Kc1 Qb6 Kb2 Qd4 Qd1 f1B Kb3 f2 Ka4 Qb6 Qda1 Qa6 Rd1 Ke2 Qc1 Qb6 Qf4 Qe3 Qg5 Qf4 Qe7 Qh2 Qf8 Nb8 Qc5 Rd8 Rc1 Nd7 Rd1 Bg2 Rc1 f1Q Rd1 Qf3 Rc1 Na8 Kb5 Nac7+ Kc6 Rf1 Rg1 Rf2 Rgd1 Bf1 Ra1 Rg2 Rac1 Nf6 Kb6 Rg6 Kc6 Rg1 Kb6 Nd7+ Kc6 Na8 Kb5 Nac7+
1B1qQ2r/K2n2Pq/P5p1/PN2qB2/4RRp1/BN1b3Q/rb1b4/3k1Bqn w - - 0 1 illegal: No proof kernel
bNr2QQ1/2B2bp1/3pPbK1/2qR1n1B/1k6/n1r3P1/3q1q1P/R1Rq1R1N w - - 0 1 illegal: No possible last move, all moves rejected
1Q2Nb2/r1K1Rp1b/1N1N1r1n/R1B2Pkq/PNq1B3/4bP2/n2p3b/2r1Q3 w - - 0 1 legal: proof: d4 h5 b4 c5 g4 cxd4 gxh5 a5 f3 Qc7 e3 Qf4 exf4 axb4 Ke2 g5 Kd3 e5 Ke4 Ke7 Kd5 Kf6 h4 b5 c4 d3 a4 g4 c5 g3 h6 b3 c6 e4 h7 b4 h5 g2 h6 e3 c7 d2 Nc3 e2 Nb5 e1B Qe2 b2 Nh3 b1Q Nf2 d1Q+ Nd3 g1B Rh5 b3 Be3 b2 Bc5 Qdc2 Nd6 Bg3 Nb4 Nc6 Qe1 Ra7 Bd3 Be3 Be4 Bh2 Rg5 Ba6 c8N Bd3 Nb6 Qbd1 Ra3 b1R Ra2 Qc3 Re2 Rc1 Rf5+ Kg6 Ne8 Qcc2 Qf2 Qh1 Qe1 Bg7 Kd6 Qc4 Rd2 Bb1 Rdd5 Bc2 Rde5 Bf8+ Re7 Ra8 Kc7 d5 Nc8 d4 Ncd6 d3 Bd5 Nf6 Be4 Rg8 h8Q d2 h7 Ng4 Qe5 Kh6 h8N Rg6 Qb2 Rf6 Ng6 Ra6 Ne5 Ra7+ Kc8 Bd3 Nd7 Kg6 Nb6 Nh6 Nc2 Nb4 Qb1 Ra5 Kc7 Na2 Qb5 Ra8 Nb4 Ra6 Nd7 Ra8 Qb8 Ra5 Nb6 Ra7+ Bb7 Qg1 Rfe5 Qg5 Rd5 Kh5 Rde5 Bh7 f5 Qg6 Rd5 Kg5 Rde5 Ra5 Be4 Ra7+ Kc8 Ra6 Kc7 Qh5 Rd5 Qc2 Rde5 Nc3 Bd4 Ra5 Rb5 Na2+ Bc5 Ra6 Ra5 Qc4 Qb7 Ra8 Qb8 Ra7+
3N2B1/B1K1qp1b/1P1n1NBr/1pPRrr2/1rQ5/4P3/1q1Q2n1/qR2bBk1 w - - 0 1 illegal: No proof kernel
1q1n2K1/2Q1PB1b/4RQBb/1rq4B/1pn1rrNp/P1nN4/4PR2/1kBn4 w - - 0 1 illegal: No possible last move
3q2b1/RB2P3/3bn2n/r1Q1BrQp/1b1QQqr1/1P2N2K/2pP2N1/1k2b2R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 e4 Ke6 g4 Ke5 Kg2 Kd4 b6 h5 e5 f5 b7 a5 e6 c5 g6 a4 b3 c3 g5 c4 g7 c2 g6 f3+ Kh2 f4 Ne2+ Kd3 Nbc3 f2 Bb2 c1B Ra2 a3 Ba1 f3 Na4 c3 Nb6 Bd6+ Kh3 Na6 b8Q Nc7 Nd5 Nh6 g8Q Ra5 Qh7 Rg8 Rb2 a2 Rb1 Bca3 Ne3 Bab4 Bg2 f1Q Qc1 f2 Qb6 Bb7 e7 Bd5 Bb2 a1B Qa7 Ne6 g7+ Be4 Qc5 Bg6 Qh8 Bf7 Qe1 Bg3 Ba3 Bb2 Ra1 Bc1 Bb2 Bh4 Nd1 Kc2 Nf4 Bg3 Ra4 Kb1 Qe4+ c2 Be5 Bca3 Ne3 Bh4 Qc3 Bd6 Qc5 Bb4 Ra2 Rf8 Ra3 Bg8 Ra4 Rf5 Ra2 Bf7 g8Q Rg5 Qf6 Rg4 Qgg5 Bg8 Qh8 Qc1 Bf3 f1R Nfg2 Be1 Qhf6 Qa3 Qff4 Qc1 Qed4 Qa3 Bb7 Qa4 Qfe4 Rf5 Ra3 Qb5 Ra4 Qf1 Ra2 Qf4 Ra4 Rb5 Ra7 Ra5
7Q/n1qBp1NK/1q2n1b1/6RP/N1k1b3/b1bp1qBQ/RP2NP2/2rr1N2 w - - 0 1 illegal: No possible last move, all moves rejected
2B2rKB/1B2p3/8/Q1bPbNnr/N1n1qnP1/3pR1bk/bB1P3q/2Q2R2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Bd3 d5 Be2 d4 Bf1 Qd5 cxd5 Kd7 Rh4 Kd8 Rh1 Ke8 Ke2 Kf7 f4 Kg6 a4 Kf5 a5 Kg4 g6 h5 g7 b5 g3 c5 f5 h4 a6 h3 a7 c4 f6 e3 f7 c3 Kd3+ e2 Ke4 h2 Ke5 b3 Ra2 c2 Rb2 b4 Nh3 Na6 Ng5 Nf6 g8B Nc7 Na3 Bg7 f8B Ne6 Rg1 h1Q Bg2 Ba6 Bf1 Qh2 Nb1 Rh5 Nc3 Bc4 Na4 Nf4 Rh1 Bh8 Bg7 Rf8 a8Q Nh7 Bf6 Bg7 Qa5 Bh8 Ra2 b2 Ra3 b1Q Bb2 c1B Re3 Ba2 Qc2 e1B Ba6 d3 Bb7 b3 Rf1 Bf2 Qcc5 Qc2 Qa3 Qc6 Bg7 Qg6 Be6+ Qf5+ Kd4 Be1 Nf3 Kh3 g4 Bg3 Bec8 Ng5 Nh4 Qh7 Ke5 Qg6 Bc3 b2 Nf5 b1N Q3c5 Ba3 Bb2 Qh7 Qc1 Bc5 Bf6 Na3 Bg7 Ne4 Bf6 Ng6+ Ke6 Nc4 Bfc3 Be5 Bd4 Bf4 Bf6 Be5 Bh8 Nf4+ Kd7 Rf7 Kd8 Ng5 Ke8 Rg7 Kf8 Qg6 Nh4 Qe4 Nf5 Rf7+ Kg8 Rf8+
1B3QN1/2Bnp1rn/Kb1PnPB1/1RBN3p/3Q4/n7/b1q1kr1P/3rqR2 w - - 0 1 legal: proof: e4 b5 a4 f5 g4 d5 gxf5 dxe4 axb5 c5 b4 cxb4 Ke2 Kf7 d4 Kf6 c4 g5 f4 a5 c5 h5 b6 b3 b7 b2 d5 g4 c6 a4 c7 a3 d6 a2 Bd2 e3 Kd3 g3 Kc4 e2 Kb5 e1Q Nf3 g2 Nh4 g1R Bd3 Rh7 Nc3 Nd7 b8B Bg7 Rb1 a1N Be4 Rg2 Rf1 Rf2 Bd3 Bb7 c8Q Nb3 Qg4 Qc7 Nd5+ Kf7 f6 Nbc5 f5 Ne6 Qd1 Ra1 Ba5 Qc2 Bac7 Bh8 Be4 Rg7 Qd4 Ba8 Rc1 Rb1 Ka6 Bc6 Rd1 Ba4 Rd3 Rd1 Rb3 b1N Rb5 Bb3 Qd8 Ba2 Qc8 Nd8 Bd3 Na3 Be4 Kf8 f7 Ngf6 Bd3 Nh7 Be4 Rg6 Bd3 Be5 Be4 Kg7 f8B+ Kf7 f6 Ke6 Bh6 Rg7 Bg6 Bf4 Nf5 Be3 Qa1 Bd4 Be3 Ke5 Nh6 Ne6 Qg8 Nf4 Qf8 Ne6 Nf5 Ke4 Nh6+ Kf3 Ng8 Ba7 Bc5 Ke2 Qd4 Bb6
2N1K3/Brb1pqP1/2nNb1p1/2N1R3/b1BN2qk/n3P1r1/1QR4P/Qr5b w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 b5 a4 bxa4 f5 h5 gxh5 g6 f6 Bg7 fxg7 Rh7 Bg2 Rh6 Bf1 Rh8 Kf2 d5 Kf3 f5 Kf4 Kf7 Kg5 a5 c4 a3 b4 a4 c5 f4 b5 a2 b6 a3 b7 d3 e3 f3 h6 f2 c6 d2 h7 d4 c7 d3 Qa4 d1B Qe4 d2 Qg2 Ba4 Qg3 d1B Nc3 Nh6 Ne4 Ng4 Ne2 Nc6 b8Q Qd4 Qe5 Be6 c8N Ra7 Nc5 Rb7 Bb2 Bdb3 Rg1 Bbd5 Rc1 a1R Rc2 a2 Rg3 Qc4 Bd4 Rab1 Kf4 a1B Rh3 Bb2 Rh5 Bh1 Qa8 Ba1 Qeb8 Bb2 Re5 Kf6 Qa6 Rf8 h8N Bc3 Qaa8 Ba5 Nf7 Bc7 Nfd6 Rh8 Qa5 Rh3 Qc3 Rg3 Qa1 Ra7 Qbb2 Rb7 Ng1 Qe2 Nf3 Qd1 Bc4 f1Q Nb3 Qf2 Ba7 Qdg1 Nc5 Qd1 Rh5+ Nge5 Rg5 Nd4 Ke4 Nec6 Re5 Nb5 Kf4 Na3 Ke4 Rg2 Nd4 Qh5 N4f5 Kg5 Nd4+ Bf5+ Kd5 Kh4 Ba2 Bh3 Bc4 Rg4+ Ke6 Qf7+ Kd7 Rg3+ Nce6 B3g2 Nc5 Bd5 Re4+ Qg4+ Re6 Qf1 Ke8 Qf6 Re4 Be6 Re5 Qf7+
Q4nR1/3P1n1p/2P1r1R1/1k1B2b1/q2p1BP1/2nN1bK1/2qQB2N/B1b2rn1 w - - 0 1 illegal: No proof kernel
4N1nN/Q1BP2p1/r1Qnb3/2b2p2/B3bP1k/rP3Rqq/b1RnK2R/4R3 w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 hxg4 d4 c5 Bh6 cxd4 Bc1 d3 Ra3 d4 Ra1 Qd5 exd5 Ba6 Be2 Bb7 Bf1 Bc8 h4 a5 c4 f5 f4 Kf7 h5 e5 h6 Kg6 b6 g3 d6 d2+ Ke2 g2 c5 d3+ Kf3 a4 h7 a3 c6 a2 c7 Ra3 b7 Nd7 b8Q Nc5 Nh3 Kh5 Rh2 g1Q Qa7 Kh4 Qda4 Be6 c8R Ne4 d7 Nd6 Rc2 d1B+ Be2 d2+ Nc3 Be7 Qc6 Qh1+ Ke3 e4 Bb5 Bf3 Ba4 d1B Bd2 Bde2 Re1 a1N Rf2 Bf8 Ng5 Nb3 Nd5 Qh3 Nc7 B2c4 Ne8 Be7 Bc3 Nd2 Nf7 Ba2 b3 Bh1+ Ke2 e3 Ba5 Be4 Bc7 Bf8 Rh1 Be7 Rf3 Bf8 Ke1 e2 Kf2 Be7 Rh2 Bf8 Ke3 e1Q+ Re2 Qef1 Re1 Qg1+ Ke2 Qgg3 Qab7 Nh6 Qa7 Rg8 h8R Be7 Nf6 Ra8 Ne8 Bf8 Qb8 Ra6 Qa7 Nb7 Rh7 Bc5 Nh8 Nd6 Bd8+ Kg4 Bc7 Ng8 Rh5 Qh1 Rh2 Qf1+ Kd1 Qfh3 Ke2 Kh4
brnN2q1/qQ1p2B1/PPbN3R/3p2b1/qkBr2Qn/3P3B/6K1/R3q1B1 w - - 0 1 illegal: No proof kernel
1n1NN1r1/kbPN4/4R3/1nr1RBp1/2B1NqPQ/3Pr3/2q3bp/bK1Q1b2 w - - 0 1 illegal: No proof kernel
7Q/1qPBPn2/Q1Nr1R1b/Bbk1rr2/1Rb1n3/B5pp/Br2K1Pq/2N5 w - - 0 1 illegal: No possible last move
1nq1NQQN/2pk3N/2R2RBB/P1n1K2b/1N2r2b/pP2b3/P3qr1b/r7 w - - 0 1 illegal: No proof kernel
1rNN2R1/R1pQ2P1/q3P1BP/3r4/1Bb4k/nn3Rb1/1p2QbKb/3rq1R1 w - - 0 1 illegal: No proof kernel
2rnQ3/rP2b2K/1kb1R1n1/b1R1pNNr/q1pq1B2/4P2r/BPN3N1/Q7 w - - 0 1 illegal: No possible last move, all moves rejected
8/P2Bb3/1rP2QKn/pN2q3/p1k1nrq1/RNB1Pb2/B1Q1b2b/1Bn1R3 w - - 0 1 illegal: No proof kernel
1qRB4/p7/2Q2qPp/b1Q3Qr/1q1BQr2/Pkn1P2n/br3N1N/2R1K1r1 w - - 0 1 legal: proof: h4 c5 b4 f5 bxc5 g5 e3 gxh4 d4 e5 dxe5 f4 Kd2 f3 Be2 fxe2 g4 Ke7 f4 Ke6 c4 e1Q+ Kc2 b5 c6 d5 c7 h6 c5 h3 c6 h2 g5 b4 g6 b3+ Kd3 b2 a3 d4 f5+ Kd5 e6 Bb4 f6 Ba5 e7 Nd7 e8Q Rb8 f7 Nb6 f8B Qf6 Nf3 Qb4 Ke2 Kc4 Be7 Nd5 Nc3 b1Q Qg1 d3+ Ke1 Nf4 Qg5 Be6 c8Q Kb3 c7 Nh3 Bd8 Ne7 Qa6 Rb6 c8Q Rf8 Qcc5 Nd5 Qab5 Rf7 Qbc6 Rb8 Rg1 h1R Nh2 Qb2 Bd2 Rb5 Ne4 Nc3 Bc1 Rb6 Nf2 d2+ Kf1 Bd5 Qe4 Qb1 Ra2 Rbb7 Rc2 d1R+ Kg2 Bc4 Bb2 Rd5 Rgc1 Rb5 Qgh4 Rh5 Qhg5 Rf1 Nfg4 Rf4 Nf2 Be6 Kf1 Rd7 Re1 Rd1 Ba1 Rc1 Rd1 Bc4+ Ke1 Ka4 Qed4 Ne2+ Kf1 Qc3 Qe7 Rf5 Qa8 Rf4 Qde4 Qce5 Qad5 Qb8 Bd4 Ba2 Rc8 Nc3 Qec5 Qb3 Ke1 Qc4 Kd2 Rbb1 Qdc6+ Kb3 Ke1 Qcb4 Kf1 Rb2 Re1 Rcc2 Ra1 Re2 Rc1 Red2 Ke1 Rdc2 Nh1 Rg2 Nf2 Rg1+
NknR1B1r/2n2q2/1r4nK/RQ2N1np/2Pb2p1/1n4N1/4PnP1/1B1Nb1Q1 w - - 0 1 illegal: No proof kernel forced: bxLB
nbr2R2/1R1n1Bq1/Np1K3Q/2PPB1r1/2rnk1P1/1rQ5/2p1n1N1/1b2BB2 w - - 0 1 illegal: No proof kernel
N2Qr1BB/k4r1P/2r2N2/PbbKR1pb/Rr5n/4p3/2b1P1N1/N4Qqn w - - 0 1 legal: proof: g4 g5 b4 d5 c4 a5 cxd5 axb4 f4 h6 fxg5 Bf5 g6 Bc8 g5 hxg5 Kf2 Kd7 Ke3 c5 Ke4 Kc7 d4 Kb6 a4 f5+ Ke5 b3 h4 c4 g7 f4 h5 c3 d6 f3 a5+ Ka7 d5 b5 h6 c2 d7 b2 d6 f2 h7 b4 Qd5 b3 Rh6 Ba6 Qb5 Nf6 g8N Ng4+ Kd4 e5+ Kd5 e4 Qa4 e3 Bh3 f1R Nf3 Bb5 Nbd2 b1B Nh4 b2 Re6 Rf7 Nf6 Nf2 Nb3 Nh1 Qf4 Nc6 Qf1 Ne5 Ra4 Nf3 Ng2 Rb8 Na1 Nh4 Re5 Be7 Be6 Re8 Bd2 c1R Bc3 Bg6 Bd4+ Qb6 d8N b1B d7 Rc6 Bb2 Bbc2 Bd4 Rff8 Bg8 Rf7 Ne6 Bh5 d8Q Bc5 Nc7 Rb7 Na8 Qc7 Re6 Qh2 Re5 Qg1 Rf5 Rg7 Ng4 Rgf7 Bh8 Ba6 Re5 Rb4 Nf6 Bb5
5N2/r3nP1b/RK6/1N1PN1QN/br1r1n1p/1q1b4/rRQbP1Bp/4k1B1 w - - 0 1 illegal: No proof kernel
NNbb1Q2/K2pP2R/1q2NBB1/Qbb3R1/1rr3pn/5kP1/r2P4/rnN5 w - - 0 1 illegal: No possible last move, all moves rejected
b5K1/R1PQ1RBb/NPp5/2bQ1q2/kp5n/n1P1Q3/r3QBbn/3Nrn2 w - - 0 1 illegal: No proof kernel
2b1rk2/p1RPR3/5b2/2nBnN1N/n4rqP/K1pr1N1N/1Q1Pn3/B2rQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 g5 e4 c5 b4 f5 d6 f3 d7+ Ke7 b6 g3 b5 f4 e5 g2 e6 c4 b7 g4 b6 g3 Nc3 Nh6 Bb2 Rg8 Rc1 Na6 b8N Nc5 b7 Bg7 Nd5+ Kf8 Nh3 g1N Ne3 g2 Nc6 Ne2 b8Q g1N Bg2 Nf7 Ba1 Qg5 Nf5 Qg4 Ncd4 Ne5 Qb2 Nc3 Rc2 N3a4 e7+ Kf7 e8N Kf8 Qdc1 Bf6 Kd1 f2+ Nf3 Ne2 Re1 f1R Neg7 Rb8 Rc3 Rb3 Nh5 Ra3 Rc2 Rd3 Rc3 Rh1 Kc2 Rf1 Kb1 Rg1 Ka2 Rh1 Nfg1 f3 Ka3 f2 Bd5 f1R Qcb1 Rf4 Nf3 Nd4 Re3 Ne2 Qe1 Rg1 Qf2 Rd1 Qe1 Nc6 Re7 Ne5 Rb3 c3 Rb7 Rh8 Rc7 Nf7 Re4 Ne5 Re3 Rh7 Re4 Re7 Re3 Re8 Re4 Ng6 Re7 Ne5
n3N2n/1BKnQ1Bn/1nP5/2PQB1r1/2q1R3/1k3r1p/2q2p1P/q2bR1BN w - - 0 1 illegal: No possible last move
1Kb5/Q5N1/r1p1B1rQ/bNR1N2q/b2R1Nqk/b1P2p2/n2b1P1P/5Bq1 w - - 0 2 legal: proof: e4 h5 g4 a5 gxh5 d6 b4 axb4 e5 Ra5 e6 Ra4 Bb2 Ra8 d4 c6 d5 Qa5 Be5 dxe5 d6 Qb6 d7+ Kd8 Qf3 Kc7 d8N Kd6 Qg4 Nd7 exd7 Kd5 Qd1+ Ke4 Bg2+ Kf5 Bf1 Kf6 Ke2 Kg5 Kf3 f5 a4 f4 Ke4 f3 h6 b3 h7 b2 a5 Kh4 a6 g5 a7 g4 Ne6 g3 d8Q g2 Nc7 Qc5 Na6 b5 Be2 b4 Qc1 b3 Qd7 Nf6+ Kf5 e4+ Ke6 e3 Nc3 b1Q Ra5 b2 Nc7 Nd5 N3b5 Rg8 h8N Nc3 Nf7 Na2 Ne8 Qh5 Bf1 e2 Ne5 e1B Ng7 Bd2 Nh3 g1Q Nf4 Qa1 Ra4 b1B Rd4 Ba5 c3 Bc2 Rc4 Ba4 Rc5 Qb1 Qd2 Qb4 Qd6 Rb8 a8B Rb6 Bb7 Ra6 Be2 Qg3 Rd1 Qg1 Bf1 Qd4 Ne8 Qe4 Rd4 Rg4 Ng7 Rg6+ Kf7 e6 Ke8 Qef5 Qf7 Qfg4 Qfc7 Be7 Qb6 Bf8 Kd8 Be7+ Kc7 Bf8 Nf7 e5 Kb8 e4 Ne5 e3 Qa7 e2 Qe6 e1B Qd6 Bf5 Bc8 Bd2 Be6 Be7 Bd5 Bc8 Be6 Bg5 Qf8 Be7 Qh8 Bf8 Qh6 Be7 Rcc4 Beb4 Rc5 Ba3
3Q4/b4Q1Q/N1rnqqn1/1p5B/1PqNk3/B1r1P3/1P1p2Kr/1RrR1rQ1 w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 e5 Bd2 exf4 Ba5 h5 gxh5 b6 Bd2 Bb7 Be3 Bd5 Bc1 Bb3 axb3 Rh6 Nd2 Rh7 Nb1 Rh8 Kf2 Ke7 h4 Kd6 c4 Ke5 h6 f5 h7 g5 c5 d5 e3 a5 h5 f3 h6 b5 c6 f4 c7 a4 c8Q d3 Rh3 g4 Na3 d4 Nc2 g3+ Ke1 a3 Qc4 a2 Ne2 f2+ Kd2 g2 Ng1 f3 Na3 Nf6 Qc3 Bc5 Qa5 Ba7 Nc2 Nc6 Qc7+ Ke4 Rh1 Ne8 Ne2 g1R Qf7 Rc8 Rb1 a1Q Nb4 Nd6 Na6 Qf6 Bh3 f1R Bg4 f2 Bh5 Qa2 Qe1 Rhf8 h8Q Rg2 h7 Rh2 Qhg8 Qe6 h8Q Ne5 Qgh7+ Ng6 Kd1 Qa4 Bd2 Rc6 Bb4 d2 Ba3 Rfc8 Qd8 Rc3 Rg1 Qac4 b4 Rc5 Nc1 Rc6 Nb3 Rd3 Ke2 d1R Rh1 Rc1 Qd1 Qf6 Qe1 Qce6 Rg1 Rdc3 Qd1 Kf5 Kf3 d3 Nd4+ Ke5+ Kg3 d2 Rh1 Re1 Qg4 f1Q Rg1 Qfc4 Rf1 Ree2 Rd1 Ref2 Qg5+ Ke4 Qg4+ Rf4 Qg5 Rh3+ Kg2 Rf1 Qg3 Rh4 Qf2 Rhh1 Qg1 Rh2+
b1B1q1k1/QN6/P3pRnr/r3b3/1N4Rq/B1B1P1qp/qP6/KQ1q1B1b w - - 0 1 illegal: No proof kernel
1R3bNK/7p/4kBNP/1rb2b2/2qq1rnr/p1B1PPq1/1r4BR/Q4B1Q w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Na3 exf4 Kd2 f3 Nb1 f2 e3 f5 Ra5 f4 Ra4 f3 Ra5 Nc6 Ra1 Ne5 Bd3 f1R Qe2 f2 Qd1 Nf3+ gxf3 Kf7 Ra5 Ke7 Ra1 Ke8 c4 Ke7 h4 d5 b4 a5 b6 g5 h5 g4 c5 g3 h6 a4 c6 g2 c7 a3 b5 Qd7 b7 Qd6 b8B Qe5 b6 Qh5 b7 Bd7 c8B Ra5 Be5 Qg4 b8Q Qg3 Ne2 g1B Bb2 Rb5 Nbc3 Bf5 Nf4 Bh2 Ne4 Nf6 Bc3 Ng4 Rb1 Kf7 Be2 d3 Nf6 d4 Ng6 Re1 Qa8 f1Q Ng8 Bc5 Ba6 Ke6 Bf6 Bf8 Rb4 Bc5 Qa1 Rb1 Qd8 Rb3 Qa5 Rb1 Qa4 Bf8 Qd1 Rb2+ Kc1 Bc5 Qe1 d2+ Kd1 Qfh3 Bf1 Qhh4 Ke2 Bf8 Bg2 d1R+ Kf1 d3 Rb3 d2 Ke2 Rc5 Rb8 Rcb5 Qf1 Rdb1 Qg1 R2b4 Qe1 Re4 Kd3 R1b2 Qed1 Bg1 Rh3 Bh2 Qh1 d1Q+ Bd2 Bg1 Rh2 Bf2 Kc3 Be1 Kd3 Rf4+ Kc3 R5b4 Baf1 Rbe4 Kd3 Qa4 Bdc3 Qa7 Bce5 Beb4 Bd4 Bbc5 Kc4 Kf7 Kd5 Qa4 Bc3 Qc4+ Kc6 Ke6 Kc7 Qe1 Kd8 Qd2+ Ke8 Qg3 Rb3 Qdd4 Rb5 Ne5 Rb8 Rh4 Qa2 Ng4 Qa1 Kd5+ Kf7 Rf4 Bd3 Rb5 Bdf1 Rb1 Rb2 Bfd6 Kg7 Ke6 N8e7 Rb8 Ng8 Bf8+ Kh8 Rb6 Rb5 Rb2 Rb3 Rc6 Rb7 Rcb6 Rb8 R6b5
4Q1bk/2rP1KR1/bBp5/2nP2R1/b1nb1NB1/2bb1NpN/1q2Q1P1/n6N w - - 0 1 illegal: No possible last move, all moves rejected
3B2rQ/1B2KPn1/2Q3Q1/8/R3r2Q/p4Prb/Pp1bN1rb/r1qRNkr1 w - - 0 1 legal: proof: g4 c5 e4 g5 b4 cxb4 h4 f5 Nh3 d5 Ng1 Na6 Ke2 Nc5 Ke1 Ne6 gxf5 dxe4 Nc3 g4 Nb1 Ng5 hxg5 Qd5 Rh3 Qa5 Rh1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 b5 c4 a5 d3 h5 f3 b3 g6 a4 g7 e3 f6 h4 f7 b2 Qd2 a3 Qg2 b4 Nc3 b1R Rh3 g3 Qe2 g2 Qe1 b3 Rh1 e2 Nb5 b2 Qd1 e1R+ Qe2 h3 Nd4 h2 Bg5 Bh3 Nc2 Nh6 g8Q Qc8 Qe4 Nf5 Qg6 Rg8 Ne2 g1R Qh4 Rg2 Qh8 e6 Bd8 Bd6+ Kf6 e5 Qh4 e4 d4+ Kc6 d5+ Kc5 Rg1 h1R Qh8 Bh2 d6 e3 d7 Ng7 Ke7 Rbd1 Rb1 Rd4 Rd1 Rdg4 Rd4 Ra1 Ne1 R4g3 Rg4 Kb4 c5+ Kb5 c6 Ra4 c7 Re4+ Kf6 Kc4 Rf4 Qb8 c8Q+ Qc7 Qb7 Qa5 Qc6+ Qc5 Nd4+ Kc3 Ba6 Kd2 Bb7 Qc1 Rf1 Rhg1 Ne2 Re7 Ra4 Re4 Nd4 e2 Qh4 Ne6 Ke7 Kd1 Bc7 Kd2 d8Q Kd1 Qb8 Kd2 Bd8 Ng7+ Qe5 Ke3 Nd3 e1B Ne2 Bc3 Rd1 Bd2 Ne1 Kf2 Ra5 Rd4 Ra4 Kf1 Qeh5 Rc4 Qh8 Re4+
1br3bQ/N1P3b1/R2Kp2p/1Rb4k/3n1r1P/4n1P1/B1n2R1B/RrbN2Q1 w - - 0 1 illegal: No possible last move, all moves rejected
N1q2q2/RN2Q1Qr/K2P3b/2B1q1pR/5PP1/2bq1B2/k1bBr1pb/2n4B w - - 0 1 illegal: No proof kernel
B1q1qQ2/K1B2R2/3B1nrb/3P2R1/Pnp2nb1/B1Q1pb2/b1P1n3/3N2Nk w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 a5 Ba6 axb4 Bf1 b5 h3 f5 gxf5 g5 h4 g4 Rh3 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Qd4 Nh3 Qd5 Ng1 Qd8 Ke2 Kf7 Ke3 h5 f4 c5 d4 e5 a4 c4 d5 b3 g6+ Kf6 g7 g3 Rh2 b2 Rh1 h4 Qd4 g2 Bd2 b4 Ne2 g1N Qd3 b3 Bb4 h3 Ba3 h2 Bg2 Qe8 Qc3 Rh6 Bh3 Na6 Bd6 Nb4 Bc7 Bd7 Bg4 Nh3 Rf1 h1B Ng1 Bf3 Bh5 Qe6 Be8 Rg6 Rf2 Bc8 Bc6 Qd7 Ba8 Qc6 Na3 b1N Nb5 b2 Rg2 Bd7 Rg5 Qb7 Ra3 Qc8 Rb3 Ne7 g8Q Bh6 Qe8 Ng8 Ra3 Nd2 Ra1 Nb3 Rf1 b1B Rf2 Nd4 Qd8+ Kf7 f6 Bdg4 f5 Ne2 Rf1 Nhf4 Qd6 Ke8 Qf8+ Kd7 f7 Ba2 f6 Bh3 Qc5 Be6 f8B Beg4 f7 Nf6 Be7 N4h5 f8B Nhf4 Kd2 e3+ Kd1 e4 Bed6 Ng3+ Kc1 e2 Kb2 e1Q Ka3 Nge2 Bfe7 Qh4 Qf2 e3 Bf8 Nbd3 Bfe7 Qh5 Bf8 Ndc1 Kb4 Ncd3+ Ka5 Nb4 Kb6 Bh3 Rg3 Bhg4 Ka7 Qe5 Rg2 Qee8 Bfe7 Bh5 Rg5 Bhg4 Bf8 Bh1 Bb6 Nh3 Bbc7 Nh5 Bc5 Nd3 Ba3 Nb4 Qff6 Be4 Rff5 N3f4 Bc5 Bg2 Qh8 Bh1 Rf8 Nf6 Qd2 Bg2 Nc3 Be4 Nd1 Bg2 Ba5 Bh1 Bd4 Kd6 Be5+ Kc5 Bb8 Be4 Qe1 Kd4 Bd6 Bg2 Rf7 Ke4 Bac7 Bh1 Nh3 Kf3 Ng1+ Kg2 Qf8 Kh2 Qd2 Bhf3 Qc3 Kh1
Bk1qN2R/bpR5/n3bn2/PP2b2N/QpP1BQ2/2n3nq/3B2Br/3b2K1 w - - 0 1 illegal: No proof kernel
2k3qr/b1NR1b1r/3r2p1/1p3R1r/1B3bbP/1P1K2nB/1qPB4/QN1QB3 w - - 0 1 legal: proof: e4 b5 d4 h5 g4 hxg4 d5 f5 a4 Nc6 d6 Nb4 exf5 Nd5 a5 Nb6 axb6 cxd6 Ra2 d5 Ra1 d4 Ke2 d5 f4 Kd7 h4 e5 b7 a5 b8B a4 f6 g3 f7 a3 f5 d3+ Ke3 g6 f6 g2 b3 d2 Qe2 d1R Nd2 e4 Nc4 a2 Ba7 d4+ Kf4 d3 Ke3 d2 Bb6 Rh7 Nd6 Ne7 Nf3 Bh6+ Kd4 g1R f8Q e3 f7 Bf4 Qh8 Nf5+ Kd3 Qg8 f8B Rg5 Ne8 Ng3 Nc7 Rgh5 Bb4 Rb8 Rb1 a1Q B6a5 Qb2 Bh3+ Kd8 Qe5 Be6 Rf1 Bf7 Qe1 e2 Rf2 Qa3 Qa1 Qa2 Qg1 e1B Rf1 Bf2 Qh1 Re1 Qg1 d1B Nd2 Ba7 Rf2 Bg5 Rf5 Bg4 Qf1 Re8 Qd1 Rb7 Nf1 Rf8 Bcd2 Bf4 Be1 Rb6 Nd2 Rc6 Rc1 Kd7 Nb1 Qb2 Bbd2 Rd8 Bab4 Kc8+ Nd5 Kb7 Qe2 Bg1 Be3 R5h6 Kd2 Qgg7 Rd1 Rdh8 Nc7 Rh5 Qf3 Kb8 Qe2 Kc8 Qf3 Nh1 Ke2 Qg8 Rd7 Ra6 Kd3 Ng3 B3d2 Ba7 Qd1 Rd6+
1N6/b4kpN/1Pr2P1n/RQ6/1p2BBqb/r2qrb1K/1P1RR3/r1RQb3 w - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a3 d5 cxd5 h5 Nf3 hxg4 Ng1 Nc6 a4 b4 Ra2 Nd4 Ra1 Nb5 axb5 Qd6 Bg2 Qd7 Bf1 Qd8 d4 e5 f4 c5 Kf2 a5 Kg2 c4 h4 c3 h5 a4 b6 c2 h6 a3 d6 a2 h7 e3 d7+ Ke7 d5 e4 d6+ Kf6 f5 e2 Bf4 c1B Nf3 e1B Na3 e3 Nc4 g3 Na5 e2 Ng5 Be7 Kh3 g2 Nc6 g1Q Nb8 Bb7 Bg2 Nh6 Be4 Ra3+ Qd3 Re8 h8R Ba8 Nh7+ Kf7 Rh2 B7h4 f6 Re6 Rh1 Qg5 Re8 Be3 Rc1 a1R Qb5 Bd5 Rf1 Bd4+ Rf3 Be5 Rfc3 Qg6 Rd3 Qc8 d8Q Ba8 d7 Rc6 Re3 Bd6 Re5 Bc7 Na6 Bb8 Rf5 Ba7 Nb8 Beg3 Rd5 e1R Re2 Bb7 Qa6 Ba8 Ra5 Bb7 Qb5 Ba8 Rec2 Ree3 Re2 Qa6 Qc8 Bb7 d8R Qh5 Rdd2 Be1+ Kh2 Qg4 Qd8 Ba8 Qd4 Qb7 Qdd3 Qbd7 Qc2 Qd3 Qd1 Rc2 Bf5 Bf3 Be4 Qg1+ Kh3 Rc6 Rc5 Qg5 Rc1 Qg4+
1Q6/Nr3rk1/2q1q3/B3Pp2/2nrQK1p/1R2R1Pq/1qBRbP2/1Rr1N1b1 w - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 cxb5 Ne7 b6 Ng8 b5 Ke7 a5 Nc6 a6 Na5 Nd2 Ke8 Nb1 Nb7 axb7 Bg7 Ba3 Bh6 Bc1 Bf8 Kd2 h3 b8R f5 e4 Kf7 b7 d5 b6 c5 Qa4 h5 Bb2 a5 Qb3 a4 Ba3 h2 Ne2 h4 Ng1 c4 Qb4 c3+ Kd3 c2 Bc1 a3 Be3 c1Q Qb3 a2 Qa3 Qe7 Qb3 Rh7 Qb2 Qe6 Qe2 Bd6 Bd2 Nf6 Ba5 Nd7 Bc3 Ra7 Bb4 Qc6 Na3 Ne5+ Kd2 d3 Ke3 d2 Ba5 d1R Nf3 Bc7 Rb1 a1Q Nb5 Qb2 Qc2 Kf6 Ne1 Rf7 Bd3 Rc1 Qa4 Kg6 Bc2 Kg7 Rg1 h1Q Qc4 Qee8 Qa4 Be6 Rd8 Bc8 b8R Ba6 b7 Qee6 Qc4 Bd6 Qe2 Qh3+ Qf3 Ng6 Rd7 Bh2 Rdd8 Ne5 Rd6 Nd7 e5 Nb6 Rd7 Ra8 Na7 Be2 Rbd8 Rc8 b8Q Rc7 Rd6 Rb7 Rc8 Qa4 Rc3 Qc6 Rb3 d4+ Kd2 d3 Ke3 Bg3 Qe4 d2 Rd8 d1R Rh1 Qg4 Rh3 Bh2 Rf3 Bg1 g3 Qh3 Kf4 Rd3 Re3 Nc4 Rd6 Rc3 Rd1 Rd3 Rd2 Rd4
n3rr2/2R1B2r/B2p1b2/1nnP1Q1N/N1b1B2Q/b1P1B3/kr1P2pR/3bK3 w - - 0 1 illegal: No proof kernel
RNb5/2kbB1n1/p2RB1Bq/2n2P1Q/pPN3B1/P3Qn1b/1rp1r3/K4r2 w - - 0 1 illegal: No proof kernel
8/k4n1R/bR1nq3/2pB4/2K4p/rpPQQNB1/BP1qNP2/2nrB1bq w - - 0 1 legal: proof: e4 e5 d4 f5 exf5 Bd6 dxe5 Bf8 a4 g5 h4 gxh4 a5 Na6 Qd5 Nb4 a6 Nxa6 Qd2 Nb4 Qd1 Na2 Kd2 d5 Kd3 Kd7 g4 Kc6 g5 Kb6 e6 h5 f6 a5 f7 c5 g6 a4 e7 a3 e8B h3 g7 d4 Be3 h4 Be2 h2 Bg5 Ka7 Kc4 b5+ Kd3 b4 Bd2 Bd6 f8B Nh6 g8Q Nc1+ Kc4 a2 Nf3 d3 Qg5 Nf7 Re1 h1Q Bc6 Bh2 Nc3 Bg1 Bd5 b3 Qe3 Qf6 Bd6 Qe6 Bg3 Rd8 Bf1 Rd6 Ne2 Rd8 c3 Bb7 Rb1 a1N Bg2 Nc2 Ra1+ Na2 Bh3 Nd4 Bf5 Nb5 Qc2 Rd7 Red1 Bc8 Be1 d2 Qcd3 Ba6 Be4 Nc1 Ra4 Rd6 Rb4 Na2 Ra1 d1Q Bh7 Nc1 Ra5 Kb8 Be4 Qd2 Bh7 Bb7 Ra7 Bc8 Re7 Ra3 Rc7 Bb7 Bf5 Ka7 Bh7 Nd4 Rb6 Nb5 Bf5 Nh8 Rh7 Nf7 Qdd4 Ba6 Bb1 Rd7 Qdd3 Nh6 Qdd4 Qc2 Ba2 Nf7 Qde4 Qf5 Bc6 Rd1 Q4d3 Qd2 Be4 Qe6+ Bd5 Nd6+
1q6/q3Q1QK/NNk1p1pP/Bp2n3/n1P2Pr1/1b3nr1/1Q1Q3q/1Bb1R2R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 b5 Kf3 d5 Kf4 Kd7 Kg5 e6+ Kg6 b3 h4 b2 a4 d3 f4 d4 c4 d2 a5 d3 h6 Ra6 f6 Bb7 h5 Ba3 f7 Bf3 f8Q Nc6 h7 Nd4 h6 Kc6 Qe7 Nf6 Nc3 b1Q Nge2 Nd7 Na4 Rg8 h8Q Qc2 Kh7 Ne5 Nec3 Qb8 Nd5 Be2 Nc5 Ndf3 Qe1 d1Q Bd2 Bc1 Nb6 Qa2 Bh3 Qda4 Bf5 Bd1 Bb4 d2 Bb1 Ra7 a6 Bb3 Ba5 d1N Qd2 Nc3 Re1 Rd7 a7 Rd3 Na6 Q4a3 Rh1 Na4 Re1 Q3b2 Rh1 Qd4 Qb2 Qd7 a8Q+ Qdb7 Re1 Qa7 Qad8 Qbb8 Qbd4 Qh2 Qb2 Nd2 Qdd4 Rg3 Qe3 Ndf3 Qed2 Rf8 Rh1 g6 Qg8 Rf5 Qgg7 Rfg5 Ra3 Bc2 Re3 R5g4 Ree1 Bb3
N2rQ3/Qr4bR/qnKp4/qP1Pp1bP/2p5/k2q1B2/N2Q2Q1/BR2r2n w - - 0 1 legal: proof: b4 f5 c4 h5 e4 fxe4 g4 hxg4 a4 b5 axb5 d6 c5 Kd7 b6 Bb7 b5 Rh6 c6+ Ke8 cxb7 Rh8 Ke2 Kd7 Ke3 g5 Kd4 e5+ Kd5 c5 d4 a5 h4 e3 f4 a4 f5 g3 f6 g4 h5 g2 f7 a3 Qd3 g3 Qe2 c4 Qd1 e2 Qd2 e1R Qc3 a2 Nf3 g1B Be2 g2 Qd2 Rh7 Nc3 Nh6 Bb2 Be3 Ng5 g1Q Ne6 Qg6 Bf3 Bg7 f8Q Qd3 Qg8 Nf5 Nc7 Ng3 Rg1 Beh6 Rb1 a1Q Na2 Nh1 Rg6 Be3 Rh6 Bg5 Bc3 Ke7 Bb2 Nd7 b8Q Qc8 b7 Nb6+ Kc6 Qd8 Qa7 Qc8 b8Q Qa6 Qbb7 Rd8 Nc1 Q1a3 Ba1 Q3a5 Qh8 Kf7 Na2 Ke7 Re6+ Kf7 Re7+ Kf6 Qe8 Kf5 Qb2 Kf4 d5 Ke3 Qd4+ Kd2 Na8 Kc2 Qc8 Rh6 Qh3 Re6 Rf7 Re7 Qf4 Rb7 Rc7 Bf8 Rh7 Bg7 Qg2+ Qad2 Rd1 Kb3 Rb1+ Ka3 Qe3 Q2c3 Qed2 Qca5
Q1br3Q/2N1RN1p/1BnP1p1q/6n1/PPbpK1kq/b1N5/6NR/1B3q1r w - - 0 1 illegal: No proof kernel
Q3R2b/6P1/BrpB1n2/n1QP1kpP/N1rrqp2/N7/BB1K3R/1bn2q2 w - - 0 1 illegal: No proof kernel
KbQRq2B/3r2pq/1kB3P1/N2P4/2Qp2R1/b2N2Pn/3Rp3/1qrnR2r w - - 0 1 illegal: No proof kernel
1R2K2k/B1r2pN1/B2bnQ1N/2B1q3/1Qb5/PP1pn2b/qq2pB1P/R5r1 w - - 0 1 illegal: No proof kernel
3QK2R/2q1PnQ1/1Nrr1n2/3pn1bq/pP2b2N/1kBR4/r1R2pBP/R7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 d5+ Ke5 f5 e4+ d3 b6 a5 b7 g5 c3 g4 h6 g3 h7 g2 Nf3 g1N Qc2 Nf6 Bg2 d2 Qb2 d1Q Bd2 Nbd7+ Ke6 Be7 Kf7 Nh3 b8Q Qc7 e5 Rd8 Nh4 f3 h8R f2 e6 f1R Qb6 f4 Na3+ Kd3 c4 f3 c5 f2 c6 Qh5+ Ng6 a4 Bc3 Ra6 Nc4 Re1 Qb8 Re2 Nb6 Rd2 Rhd1 Ne5+ Kg7 Bd7 Nh4 Ng5 Qa8 Be8 Qc8 Rd6 Qd8 Nfd7 Kg8 Ngf7 Kg7 Bg5 e7 Nf6 Kf8 Qa7 c7 Bb5 c8R Qc7 Qa3 Kc2 Qc1+ Kb3 Qb1+ Rb2 Qh7 Bd7 Qg7 Bf5 Rd2 Be4 Rd3 Nfd7+ Ke8 Ra2 Rdd1 Qa7 Rc4 Qc7 Rd2 Rc6 Rc2 Rd6 Rd4 Rc6 Rd3 Rd6 Nc4 Rac6 Nb6 Nf6+
1N6/BQ2P1b1/2QQ1N1p/p5rR/2b2pP1/2k2n1P/B1rR2qQ/r1qbn2K w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 f4 gxf4 Kf2 Ke7 c4 Kf6 g4 Ke5 Kg2 a5 e4 d5 b6 f5 c6 d3 c5 Kd4 e5 h6 b7 d2 e6 Nd7 b8Q Ba6 c7 Bg7 c8Q Ne5 c6 Nf6 e7 Qc7 Qc2 d1B Bc4 Rg8 Ra2 Nfd7 Nc3 Nf3 Qcb7 Nc5 Ne4 Nd3 Nf6 Qc8 Bb3 Bc4 c7 Ra7 Qf2+ Kc3 Be3 d4 Rd2 Ra6 Qe2 Rc6 Ba2 Rc5 Qc6 Qb7 c8Q Nde1+ Kf2 d3 Qbd6 Qb2 Q8b7 Qc1 Kf1 Rc8 Qg2 Rb5 Ba7 Rc7 Nh3 Rc5 Ng5 Rc8 Ngh7 Rb5 Re2 d2 Nd7 Re5 Nb8 Rb5 Qe4 Rcc5 Qg3 Rb2 Qg2 Rc2 Nf6 Ng1 Qbd7 f3 Qb6 f2 Bb3 f4 Qbd6 Ngf3 Qdb7 Rg5 Qec6 Ra2 Qg3 Ra1 Ba2 Ba4 Qh3 d1R Qh4 Nd3+ Kg2 Rd2 Qh5 Rb2 Rd2 Bd1 Re1 Rc5 Kh1 Rc2 Re5 Nde1 Qh3 Rd5 Rh5 Rg5 Qg2 f1Q+ Qg1 Qe2 h3 Qf2 Qh2 Qg2+
K2NQn1k/N1qP1rR1/2B1Pq1p/Q2p4/pP1N4/nrR3b1/r6B/N4n1b w - - 0 1 illegal: No proof kernel
Kb1n4/Q2PbrB1/2rprR1N/qbp2B2/6q1/n2P1N1P/Q3p3/2Bk1B1R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 c4 hxg4 c5 f5 exf5 d6 c6 Qd7 cxd7+ Kf7 Ke2 Kf6 Kd3 Ke5 Kc4 Kf4 Kb5 g5 a4 e5 a5 e4 f6 b3 h3 e3 f7 e2 a6 b2 f3 g3 a7 g4 Rh2 g2 Na3 b1R+ Ka5 b5 Ra2 b4 Nc4 b3 Rh1 g3 Rh2 b2 Ne5 Nh6 Ng4 Be7 f8B Nf5 d3+ Ne3 Ra1 Rh7 Ne5 Nc6+ Kb5 Nd8 Qc2 Rf7 Bg7 Ba6+ Ka5 c6 Kb6 Bb5 Ng4 Rc8 a8B Rf6 Ka7 Re6 Ra6 Ra1 Qb3 b1Q Nh6 Qa2 Rh1 Qa5 Qa2 Rc7+ Bb7 Rb1 Ka8 Rb4 Bcb2 Nc4 Ba3 Ke3 f4 Kf2 f5 Ke1 f6 Kd1 Nf3 g1Q f7 g2 Bc1 Na3 f8Q Rf4 Qf5 Qd4 Qc5 g1B Qa7 Rf7 Rb6 Qg4 Ra6 Qc3 Ra4 Qa5 Rf4 Bb6 Rf6 c5 Bd5 Rc6 Be4 Bc7 Bf5 Bb8
Q1N5/2P1pN2/1RbQ2r1/5rnK/2pqq1PR/b1rpR1n1/2P3kB/1R1B1q2 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 Nf3 gxh4 Ng1 c4 Bd2 Qb6 Bc1 Qc5 dxc5 Ba6 Bg5 Bb7 Bc1 Bc8 Ke2 Kf7 f4 Ke6 g4 a5 b4 h5 b6 d5 b5 h3 f5+ Ke5 c6 e3 Kf3 h4 c7 h2 b7 d4 f6 e2 f7 e1R b6 d3 Bd2 a4 Bb4 h3 Kg3 Ke4 Bd6 a3 Bc5 a2 Bf2 Rh5 Na3 Nd7 b8Q Nc5 b7 Nf6 Be2 Bg7 f8R Rf5 Kh4 Ne6 Nb5 Ra3 Qa8 Bd7 b8R+ Bc6 Qb1 Ng5 Nf3 Rc3 Qb4 Nh5 Rb1 a1Q Bd1 Ng3 Qd6 Re3 Re1 h1Q Bg1 h2 Ne5 Qf3 Nf7 h1Q+ Bh2 Qff1 Re2 Kf3 Rh8 Re6 Rb6 Rg6 Re3+ Kg2 Na7 Bd4 Rh5 Bc5 Nc8 Ba3 Rh7 Qf4 Rh8 Qe4 Rh5 Qf1 Rh7 Rb3 Rh8 Qad4 Rh7 Ne2 Kh5 Rc3 Rh8 Rg8 Kh6 Ng3 Rh7 Re8 Kg6 Rh8 Rh4 Rg8+ Kh6 Nh1 Kh5 Rg7 R6b5 Rg6 Rb6 Ng3+
1B4K1/1Npk1n1b/PQ2RQBp/1r2B2R/4q1pb/Pb5P/3r2Nq/B2n3q w - - 0 1 illegal: No possible last move
qb6/2pkrP1q/1QN2RR1/br2rNKp/1PPn2BQ/3n1Q2/2Q1q1p1/B7 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 h3 fxg4 Ra6 g3 Ra1 g2 Na3 g5 Nb1 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd4 Rh3 Qd7 Rh1 Qd8 Ke2 h5 Ke3 e5 c4 a5 f4 a4 d4 a3 b4 a2 b6 Na6 d5 Nb8 g5 Nf6 f5 Bh6 d6 Nc6 d7+ Ke7 b7 Qc8 b8Q Qg8 Nd2 Qh7 Be2 Re8 Ngf3 Nd4 Nb3 Ra5 Rg1 Rb5 Na5 Bf8 Rb1 a1Q g6 Bg7 Rf1 g1B+ Rf2 Kd6 d8Q+ Nd7 f6 Re7 Nc6 Qa8 f7 g2 Qc2 Ke6 Bb2 Nc5 Ba1 Nd3 Rd1 Bf6 g7 Bh4 Qf8 Kd7 g8Q Bg3 Nh4 B3h2 Nf5 Bg3 Kd2 e3+ Kc3 e4 Bg4 e2 Kd2 e1R Qg5 Bd6 Qb6 Bc5 Qh4 Re5 Qh8 Re7 Q8f6 e3+ Kc3 e2 Kd2 Rf1 Rf4 Rf3 Rf1 Rfe3 R1f2 R3e5 Re4 Nb2 Ke3 e1Q+ Kf4 Nd3+ Kg5 Qe2 Re3 Rd5 Re6 Re5 Qb7 Ba7 Qb6 Bb8 Rf3 Nb3 Rg3 Re3 Qfc3 Ree5 Rh6 Bc5 Rf6 Nd4 Qa3 Nf2 Qf3 Nd3 Qa5 Bb6 Qa6 Ba5 Qb6 Ne1 Kf4 Nb3 Bh3 Qd1 Rgg6 Nd3+ Kg5 Nd4 Bg4 Qe2
8/RP1p1N1r/3RQ3/1kqP1Prb/1b1Q1NNq/pb3nNp/2r2K1n/1B2B3 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 d4 e5 g4 a5 c4 h5 f4 h3 f5 a4 b6 h2 c6 h4 d5 a3 c5 e3 c7 e2 g5 e4 g6 Qe7 g7 Rh7 c6 Ba6 c8N Bc4 c7 Nh6 g8N Ng4 Nd2 Qc5 Nh6 Nc6 Nd6+ Ke7 c8Q Bb3 Nh3 Nd4 Qc6 Rc8 Nf4 h3 Rg1 h1B Ndf7 Nh2 Kf2 e1R Rg6 Bg2 Ng4 Bf3 Bd3 Rg1 Nf1 Rc7 Rb1 e3+ Ke1 e2 Bd2 Rg2 Ng3 Rg1+ Kf2 Rc8 Nf6 Bh5 Be1 Rc7 Be4 Ndf3+ Qd4 Rc8 Rc1 Rc7 Bb1 Rc8 Nh1 Rg5 Ng4 Rc7 Ng3 Rc8 Nfh6 Kd8 b7 Bd6 Qa6 Kc7 Rc4 Be7 Ra4 Bd6 Qc4 Kb6 Nf7 Rc6 Qc3 Kb5 Ra7 Bf8 Qce3 Be7 Bd2 Bd6 Qe6 Rc8 Ke3 e1Q+ Nge2 Qh4 Qe7 Qc7 Ng3 Re8 Be1 Bb4 Rd6 Rc8 Kf2 Qb6 Qe4 Rc1 Qe7 Qc5 Qe6 Rc2+
4n1nb/1Pp1rrq1/4Q3/2KbpB2/B1NrNn2/1QqNN1RP/R1p1P2k/8 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 dxc4 f4 g5 fxg5 h6 g4 Qd4 g6 Qd5 g7 Bf5 b3 Bd3 g5 Bg6 Bb2 Bf5 g6 Bc8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Ke3 Kd6 Kd4 f5 b6 a5 b4 c3 b7 e6 b5 f4 b6 a4 Qb3 g4 Bh3 g3 Na3 f3 Ra2 g2 Bf5 f2 Nh3 g1N Ng5 f1R Nc2 a3 Ne3 Nh3 Rg1 c2 Rg3 Nf4 h3 Nd7 b8N Rh7 b7 Ndf6 Nc6 Ra4+ Nb4 Qd7 d3 Ne8 Ne4+ Ke7+ Kc4 e5 d4 Rf2 d5 Rf3 Ng5 Kf6 d6 Qf7+ Kb5 Be6 d7 Bd5 Nd3 Rd4 d8N Rf1 Nc6 Rf2 Ra1 a2 Na5 Be7 Nac4 Qf8 Rb1 a1Q Rb2 Bd8 Ra2 Qc3 Bd7 Qf7 Kc5 Rf3 Ba4 Rf1 Ng2 Kf5 Ne4 Rf3 Nc1 Bf6 Nd3 Nh6 g8Q Bh8 g7 Qf6 Qf8 Ng8 Qe7 Qg5 Nef2 Qg4 Qe6+ Kg5 Ne3 Kh4 Ne4 Qg6 Rg1 Qg2 Nd6 Kg3 Ne4+ Kh2 Rga1 Qg5 Rg1 Ng6 Rg3 Rf8 Bd7 Nf4 Ba4 Ngf6 g8B Re7 Bf7 Ng8 Bg6 Rff7 Bf5 Qg7
3RBn1K/1pr1BP1N/4N1qP/2rn1b1Q/3q4/QqB1k3/P1p2pr1/1R1Bb3 w - - 0 1 illegal: No proof kernel
2Q3r1/2R3pk/K1p1nqn1/2N1p1Bb/2n5/PB4R1/1BnbQ1PP/1Bn2rN1 w - - 0 1 legal: proof: c4 a5 e4 d5 b4 dxc4 bxa5 f5 Qc2 h5 Qd3 h4 Qh3 fxe4 Qxh4 Kd7 Qh7 Ke8 Ke2 Kf7 f4 b5 d4 e5 f5 b4 f6 c3 a6 c2 d5 b3 a7 b2 d6 e3 Kd3 e2 Kc4 e1N Kb5 Nd3 d7 Qe7 d8B Bg4 Nd2 b1N Ne4 Ne1 Bd3 Nd7 Nc5 Nd2 Qe4 Nc4 Qe2 Bh5 Bb2 c1N Bb1 Nc2 Ka6 Kg6 f7 Kh7 a3 Rc8 a8B Qf6+ Bc6 Bd6 f8Q Ne7 Ba4 Rg8 Bb3 Ng6 Be7 Rb8 Qc8 Ndf8 Ra2 Ne6 Ra1 Qf7 Bg5 Qe7 B1a2 Qf6 Rb1 Nd3 Re1 Nc1 Bb1 Rb4 Rf1 c6 Rf3 Bf8 Rg3 Be7 Nh3 Bd8 Rf1 Ba5 Ng1 Rb7 Rd1 Rf7 Rd7 Bd2 Ra7 Qe7 Rb7 Rf1 Rc7 Qf6
NQr2QNN/5P1r/p1pq2rb/3Pk2r/b4nB1/B1P1N3/3pn1r1/R1R1K3 w - - 0 1 illegal: No possible last move, all moves rejected
rk3N2/2n2pqb/3pn2R/2R1B3/PK1bnn1p/1QRQ1R2/1P1n2BP/3r1N2 w - - 0 1 legal: proof: d4 a5 f4 g5 c4 gxf4 Be3 e5 dxe5 b5 Ba7 a4 Qxa4 bxc4 Qb3 Qf6 Qd1 Qd8 Kd2 h5 Kc3 c5 e4 h4 g4 f3 a4 d6 e6 f2 e7 Kd7 e8Q+ Kc7 e5 Bh6 e6 Qg5 e7 Nf6 Nf3 Na6 Nbd2 Bg7 Bg2 f1N Qb3 Rg8 Rc1 Bf5 Nd4 Bh7 Qeb5 Qg6 Bb6+ Kb8 g5 Nc7 Ne6 Qh6 g6 Ne4+ Kc2 c3 Qd3 c4 Nf8 Bd4 e8R+ Kb7 Re5 Qg7 Rc5 Kb8 Nf3 Nfd2 Rhf1 Ng5 Rf2 Nde4 Nd2 Nge6 Nf1 Na6 Rf3 Nac7 Kb1 c2+ Ka2 c3 Ka3 Bf2 Ra1 c1N Kb4 c2 Ra3 Ne2 Ba5 c1N Bb6 Qe5 g7 Bd4 Ba5 N2f4 Bb6 Rh8 g8R Ra5 Rg4 Qg7 Rg6 Ra8 Rh6 Rg8 Qbc2 Nb3 Qcd1 Nc1 Rac3 Nb3 Q1c2 Nbd2 Qb3 Qf6 Ba5 Rg5 Bb6 Qg7 Ba5 Rd5 Bb6 Nb5 Bd8 Nbc7 Bf6 Rh5 Be5 Rg5 Bh1 Rg1 Bg2 Rh1 Ne3 Ra1 Nf1 Rd1
1Q3BNr/npNBb1RN/1RP1bP2/5np1/p1Q1n2P/1r4kN/q6n/4nK2 w - - 0 1 illegal: No proof kernel
nN1nB1rk/r1Q5/1R3PBK/2qQ1rnP/1bB2p1p/2B1prR1/1P6/1b2N3 w - - 0 1 illegal: No proof kernel
1Q3nN1/r1b1b1pb/2R1N1PR/2PK1pB1/Br4pP/5kq1/3r2Rn/bRQ5 w - - 0 1 legal: proof: f4 b5 g4 c5 a4 bxa4 d4 h5 dxc5 e5 fxe5 Qe7 g5 Qf6 Qd4 Qd8 Qg4 hxg4 Kf2 Ke7 Ke3 Ke6 Ke4 a5 b4 f6 c4 d6 b5 a3 c6 a4 b6 a2 g6 a3 c5 Bb7 Nc3 Nd7 Nd5 Ra7 c7 Ne7 c8R Nf5 Rb1 a1B Nf3 a2 Bg5 Be7 Rc6 Nf8 h4 Ne3 Rg1 Ba8 b7 Qc7 b8Q Bb7 Bg2 Nf1 e3 Nh2 Nd4+ Kd7 Ne6 f5+ Kf4 Bd4 e4 a1B Bh1 Ba6 Rg2 Bc4 Qb2 Bc3 Qc1 Ba5 Ke3 Qb8 Kf4 Bc7 Nf6+ Kc8 Ke3 d5 Ng8 Kd7 Kf4 Bb3 Ke3 d4+ Kd3 Bc2+ Kc4 d3 Kd5 d2 Nf4 Bd3 e6+ Ke8 e5 d1R Bf6 Rd2 Bg5 Bed6 e7 Kd7 e8R Be7 Ne6 Qb3+ Qc4 Qa3 Qc1 Bf1+ Nd4 Qg3 Ra8 Rb2 Ne6 Rb4 Rc2 Be2 Bf3 Bb5 Rg2 Ba4 Be2 Bb3+ Bc4 Ba2 Bb3 Ba5 Nh6 Rh7 Nd8 Ne6 Rb8 Bd6 Rbc8 Rb6 Kc4 Rh8 Nb7 Rf8 Rb8 Rf6 Rg8 Nf8 e6+ Ke7 Nd8 Rb5 Bd2 Bac7 Rh8 Rf7 Rh7 Kf6 Bg5+ Ke5 Rh8 Ke4 e7 Ba5 e8Q+ Kf3 Rh7 Rfd7 Qe5 Be7 Qb8 Rd2 Rh8 Rb2 Kd4 Rb6 Ba4 Bg8 Ne6 R6b4+ Kd5 Bc7 Rh7 Rc2 Rh8 Bh7 Ng8 Rf2 Nf6 Bg8 Rh6 Bh7 Ng8 Rd2+
8/P3r1r1/1R1qQ3/npknPP1N/n4bNB/pQ5B/1pb3n1/K1BRr2B w - - 0 1 illegal: No possible last move, all moves rejected
1N3Q2/1Q2QRR1/5BpK/3b4/1Br2qPP/1N5r/pbr1qp1P/1kn1nQ1r w - - 0 1 illegal: No proof kernel
r3K1k1/1Q2nRqN/3P1r2/3pB2b/1b1P1pr1/2QR4/p4P1n/Nq1QQrB1 w - - 0 1 legal: proof: h4 d5 c4 b5 a4 g5 axb5 gxh4 e3 e6 Bd3 Ba6 Be4 Bc8 cxd5 Na6 d6 Nb8 Bd5 exd5 Ke2 c5 Kd3 a5 b4 h5 g4 f5 b6 Kf7 b5 h3 g5 a4 b7 a3 e4 a2 e5 h4 b6 h2 g6+ Kg7 e6 c4+ Kd4 c3 Kc5 c2 e7 h3 e8Q Nh6 Na3 Ra6 Qee1 Ra8 Nf3 Qh4 Ng5 Ng8 Nh7 Nd7+ Kc6 Qe4 b8Q Qe5 b7 Ndf6 d4 Qg3 Bf4 c1R+ Nc2 Ng4 Rb1 Be7 Rb3 Bg5 Rd3 Ne7+ Kc7 Kg8 Kd8 Be6 g7 Bf7 Na1 Bh5 Qc8 Qg2 b8B Bh6 Bg3 Bd2 Bc7 f4 Rg1 h1R Bh2 Bb4 Ba5 Ra6 Qcc3 Ra8+ Kd7 Qg3 Bd8 Rb1 Rg2 Rf1 Bg1 h2 Qee2 h1Q Qee1 Ng6 Bf6 Ne7 Be5 Rf8 Rh2 Rf6 Rh4 Nh2 Rg4 Rg6 Ke8 Rb3 Rg5 Ra3 Rf5 Rg4+ Rf7 Ra5 Nf8 Rh6 Nh7 Ra8+ Kd7 Qe4 Rf5 Rgg6 Re3 Qb1 Rd3 Nc8 Ke8 Qg5 Rf7 Qf6 Ra7 Rg4+ Kd7 Kf7 Rc7 Kg6 g8Q+ Qg7+ Ke8 Kf5+ Kd8 Rf6 Qe6+ Kg6 Qd7 Qf7 Qdc6 Kg7 Qb7 Kg8 Rd7 Qg7 Rf7 Ne7+ Kd7 Ra4 Ke8 Ra8+
3NkqB1/2Q3Rn/Rp4pN/BKB1nb2/1pbq2q1/2q1r1PP/2P2r2/2B4Q w - - 0 1 illegal: No proof kernel
4k1n1/4rr1K/PR2R3/2n2q1N/r2b1PN1/Q2Qr1p1/ppBb2P1/1RR3Bq w - - 0 1 illegal: No possible last move
b2Q2N1/b1p4R/r1p1K1Q1/2P1q2r/PQ2q1NQ/Bp1B1P2/r1nrR3/4n1k1 w - - 0 1 illegal: No possible last move, all moves rejected
2rkr1n1/1p5B/5RPB/3Nb2b/1QpqB1Q1/N3prBq/1P2R2P/nK3r2 w - - 0 1 illegal: No proof kernel
Rr1Q1Kb1/1pbN1P1q/p6q/P7/Q1Bpn3/R2N2P1/RB1Rr1r1/2n1rk2 w - - 0 1 legal: proof: e4 c5 d4 e5 h4 g5 dxe5 gxh4 b4 f5 bxc5 fxe4 Ke2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 h5 c4 a6 f4 h3 a4 d6 g3 h4 c6 h2 c7 h3 e6 e3 a5 e2 c5 Kg4 e7 Qe8 f5 Rh6 c6 Qh5 e8R Nd7 Rd8 Ngf6+ Ke6 d5 Nf3 Rb8 Nbd2 e1R+ Ne4 Bd6 Ra2 Re2 Bb2 Ne5+ Rd7 Rg2 Qa4 Nd3 Nc5+ Ne4+ f6 Nc1 Nd3 Rg6 Kf7 Qh6 Rg1 h1R Be2 h2 Nfe5+ Kh3 Ke8 Nb3 Rga1 Nc1 f7 Re1 Ra3 h1Q R1a2 Rg5 Rd8 Bf5 c8Q Bc7 Nd7 Bh7 Bf1 Bg8 Be2 Qh7 Kf8 Re5 Bf1 Bb6 c7 Kh2 Be2 Kg1 Bf1 Ra8 Qb8 d4 c8R Q1h4 Rc2 Bc7 Rd2 Q4h5 Re8 Ree2 Qd8 Rb8 Nf2 Re1 Bc4 Qh2 Nd3 Kf1 Re7 Nc5 Re6 R5e2 Re8 Ne4 Qg5 Rd8 N7c5 Rd5 Ra8 Q2h3 Qe7 Rd8+ Qee8 Rc8 Qd8 Rb8 Nd7 Q3h6+
1RR1Qr1b/pQ2P1p1/1qBb2PB/1n1r4/3r1B2/pKB1PN2/2rN1q1n/2k5 w - - 0 1 illegal: Other
1q5n/5QBp/bBpK3P/1P1p1rr1/3RQrB1/k1P1N3/2rN1Bn1/2n1R1r1 w - - 1 2 legal: proof: d4 f5 a4 e5 e4 Be7 f4 b5 axb5 fxe4 g3 Bg5 f5 Bf4 gxf4 exd4 Kd2 Ke7 h4 Kd6 b4 a5 h5 g5 b6 c6 h6 e3+ Kd3 g4 Ke4 d3 b5 Kc5 Ke5 Kb4 b7 d5 f6 a4 f7 g3 f8B+ Ne7 f5 d2 f6 g2 f7 e2 Bg7 e1N f8Q a3 Qe2 d1R Qef2 a2 Q2f7 Na6 b8B Rd2 Na3 Rg8 Bc7 Nc5 Nc4 Nb3 Bb6 Ba6 Nf3 g1R Bh3 Ng2 Q8e8 Ng6+ Ke6 Qc8+ Kd6 Nh8 c3+ Ka4 Rb1 a1R Bg4 Rc2 Bce3 Nc1 Rh4 Rf1 Nfd2 Rf5 Bf2 Qb8+ Kc5 Rf4 Ne3 Ka3 Qee6 Ra7 Qe4 Rc7 Kd6 Rf8 Qh5 R8f5 Qf7 Rg5 Rh1 Rff5 Rb4 Rf4 Rd4 Re7+ Bc7 Ree5 Rf1 Ref5 Re1 Na2 Re2 Rg1 Re1 Qa8 Ba5 Nc1 Bb6 Qb8+
2b1q2N/2P2KB1/qNRr1pQp/4QPr1/B2n1P2/1nB2RB1/1r2rp2/r5k1 w - - 0 1 illegal: No proof kernel
q5k1/pp1PR1P1/2QKp2q/BPnR1NQ1/1B3bB1/4n1nr/5B2/1b1nN2n w - - 0 1 illegal: No possible last move
3q3B/1nkn1RR1/QppR3K/P2n2p1/1b4P1/RNQn3N/4B1P1/rr1qq3 w - - 0 1 legal: proof: f4 d5 b4 a5 c4 axb4 cxd5 e5 h3 Bg4 hxg4 exf4 Kf2 Kd7 Kf3 f5 e4 h5 a4 c6 d4 b3 d6 b2 e5 b6 d5 h4 Ra3 h3 Nd2 b1N Be2 h2 Qe1 Nc3 Nh3 Ne7 Bb2 Nb5 Rf1 h1N Nb3 Nf2 Qc3 Nd3 e6+ Kc8 d7+ Kc7 Ba1 Nd6 Rf2 Nb7 Rf1 Qe8 d8R Nd7 Rf2 Ra7 Ra8 Ra5 Ra7 Qd8 Bb2 Rb5 a5 g5 d6+ Kc8 Rf1 Nd5 e7 Kb8 e8Q Rb4 Ng1 Rh1 Nh3 Rb5 Rf2 Ra1 Qe3 Be7 Qc4 Rb4 Qa6 Kc8 Bh8 Rb5 Nd2 Rbb1 Qd4 Nb8 d7+ Kc7 Qg7 Bb4 Rf1 Qc8 d8R+ Nd7 Nb3 Qb8 Re8 Qd8 Qc3 Nb2 Kf2 f3 Re6 Nd3+ Kg3 f2 Kf3 f4 Ke4 f3 Kf5 Nb8 Kg6 Nd7 Rg1 f1Q Rd6 f2 Kh6 Qc1 Re1 f1Q Rd1 Qf3 Rf1 Qg3 Rf7 Qd1 Ra8 Qe7 Rg8 Qge1 Rgg7 Qd8
2Bqn1N1/3B3p/4r1k1/Q2qpq2/bQ2PB1p/Bqn1K2P/r1Nn1P2/3R3R w - - 1 2 illegal: No proof kernel
3n4/b1Qr1R2/pQ1PbqN1/N2Rp2k/4r3/qP2P3/p1R2qb1/RBBK1b2 w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 h4 bxa4 g4 d5 cxd5 Nd7 h5 Ne5 g5 Ng6 hxg6 Bg7 Bh3 Bh6 Bf1 Bf8 d4 f5 b3 h5 d6 e5 g7 Kf7 d7 Kg6 e3 c5 d5 f3 Kd2 f4 Rh2 f2 Nf3 a6 Rg2 c4 Bb2 h4 Na3 h3 Nh2 f3 Qb1+ Kh5 g6 c3+ Kc2 Bc5 Kd1 Ba7 Nc4 a3 Bc1 a2 Bd3 f1B Na5 f2 Qc2 Qf6 d8Q Ne7 g8R Be6 g7 Nc6 Nf3 h2 Nh4 h1B Qb6 Rd8 Ng6 Rd7 Rf8 Nd8 g8R Rh6 d6 Rh8 Rg4 Bhg2 Rd4 Rhh7 Rf7 Rg7 Nh4 Rg4 Ng6 Re4 Rd5 Ra4 Qb2 Re4 Bb1 c2+ Kd2 Bb5 Qc3 f1Q Qcc7 Q1f5 Rgf8 Bbf1 Re8 Nb7 Ra8 Nd8 Rc8 Qf2+ Kc3 Q6f4 Qc4 Bf5 Ba3 Q2h4 Kd2 Be6 Qcc6 Qff6 Qcb7 Qg7 Rcc5 Qgf6 Q7c7 Bb5 Rc4 c1Q+ Ke2 Qb2+ Kd1 Qhf2 Rc2 Bbf1 Rd3 Qd4 Bc1 Qb2 Rd5 Qa3
4R3/pn2N1b1/bn1P3B/PBk2Bq1/P5Nq/K1b3rb/Q1pRp2n/1B1Q4 w - - 0 1 legal: proof: b4 d5 a4 f5 h4 g5 e4 fxe4 Nc3 Na6 Nb1 Rb8 c4 dxc4 hxg5 b5 Be2 Rb6 Bd3 Nc5 Be2 Ra6 Bf1 Ra5 bxa5 Na6 g4 Kd7 d4 Kd6 Kd2 h5 Kc2 e5 Kb2 c5 f4 c3+ Ka2 b4 f5 c2 d5 e3 f6 e2 f7 e1B g6 e4 g7 e3 g5 b3+ Kb2 e2 g6 c4 Rh2 h4 Ra2 h3 Ka3 c3 Bf4+ Kc5 d6 b2 Nf3 c1Q Ne5 Ne7 g8B Nd5 g7 Nb6 Ng4 Qh4 Bh7 Rg8 Bh6 Qcg5 Bd3 Be6 Bb5 Bd7 Rh1 h2 Bh3 Be6 Rf1 h1N Rf6 Bf5 Re6 Ng3 Re7 Nf1 Re8 Rh8 g8B Bg7 f8Q Nh2 Be6 Rg8 Qf7 Bd3 Bf5 Bc4 Nd2 b1B Nf1 Bc2 Bh7 Bf5 Rd2 Bfe6 Bb1 c2 Nfe3 Bd7 Rd4 Bc3 Nf5 Bde6 Ne7 Bc8 Nf2 B4e6 Bf5 Bed7 Bg6 Bh3 Qa2 Rf8 Nd5 Rf3 Nh1 Rg3 Rd2 Bb7 Bgd3 Kd4 Nf2 Nc5 Ne7 Ba6 Ng4 Nb7 Bf5+ Kc5
2K1Q2q/b5PB/n1P2qrR/6pb/2N1qB1Q/5BRp/qp2b1PN/1k2Bn2 w - - 0 1 legal: proof: e4 c5 b4 g5 d4 cxd4 h4 a5 h5 axb4 Be2 b5 Bf1 f5 exf5 Ra4 Bd3 Ra6 Bf1 Rg6 hxg6 Bb7 Nd2 Ba6 Nb1 Bc8 Kd2 h5 Kd3 e5 Ke4 Ke7 Kd5 Kf6 c4 h4 f4 d3 a4 h3 a5 d2 c5 b3 c6 b2 a6 e4 a7 e3 a8B b4 g7 e2 Bb7 e1Q Qf3 d1B Bd3 b3 Qf2 Be2 Qh4 Nh6 Na3 b1Q Nf3 b2 Nh2 Bc5 Nc4 Ba7 Kd6 Ng4 Rf1 Ne3 Ba6 Rh6 Ra3 Qh8 Kc7 d5 Bd2 Qf2 Be1 d4 Be4 d3 Bf3 d2 Bb5 Kf7 f6 Ke6 f7 Kf5 f8B d1Q Bd6 Qb3 Ba4 Q3d3 Bc2 Rg6 Rb3 Bd7 Be5 Be8 Kc8 Qe4 Bc7 Ke6 f5+ Kd5 f6 Kd4 f7 Na6 f8Q Qa2 Bf4 Bf7 Rg1 Nf1 Qe8 Rf6 Rc3 Bh5 Re3 Rg6 Bd3 Nd2 Rf1 Kc3 Bb1+ Qd3 Re6 Qde3 Bf5 Qe4 Rd6 Kc2 Rd3 Rf6 Bh7 Kb1 Rb3 Qd4 Rf2 Nf1 Ra3 Bd1 Rd2 Qc3 Rd6 Be2 Rb3 Rf7 Rh6 Qf6 Bg4 Rd7 Rg3 Rd6 Bf3 Qff8 Ne5 Rg6 Nc4 Qf6
1N4rR/2Pr2p1/1k2p1Q1/3RPb1B/1n3NPp/2r5/Rq1Q1rK1/rBR1br2 w - - 1 2 illegal: No proof kernel
2R1r1N1/1b1bpB1p/R1PB4/1Q2PQp1/4rB1B/1Nn1b3/1kr2PK1/2n1n1b1 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h4 Qb6 h5 Qg6 hxg6 f5 Rh6 fxg4 Rh3 Bh6 Rh1 Bf8 c4 d5 b4 Kd7 e4 Ke6 c5 Ke5 b6 a5 b7 d3 g7 Kd4 c6 g3 b5 g2 b6 d2+ Ke2 a4 Kf3 a3 Ra2 Na6 b8B Nb4 b7 Ra4 Qe2 d1R Bg3 Nd3 b8B Rd2 Bgd6 Nf6 g8Q Ne1+ Kg3 Bg7 Nc3 Bb7 Qf8 Rc2 Bcf4 Rg8 Qf7 Re8 Qb5 Bh8 Ra1 a2 Bc4 Rb4 Rb1 a1N Qe6 Bg7 Qf5 Nb3 Ra1 Bh8 Ra6 Nc1 Rh6 Ra4 Rg6 Rb4 Rg8 Bg7 Nh3 g1B Nb1 Ra4 Nd2 Kc3 Rf8 d4 Nb3 d3 Bf7 d2 Rh8 d1B Rg8 Ned3 Kg2 Kb2 Bg3 Rb4 Nf4 Nd5 Nh5 Bg4 Nf6 Nc3 Bh4 Rc4 Rh8 Rd4 Ng8 Ne1+ Kh1 Ra4 Bf4 Bd4 e5 Be3 Bd6 Nf3 Kg2 Re4 Qg6 Bd7 Qf5 Rb8 Nh6 Ra8 Rc8 Rb8 Ng8 Ra8 Rc7 Re8 Rc8 Ne1+
nNb2nK1/1n6/3N2R1/pB2q1p1/PbQ1b1P1/1Q1r2P1/1npN4/3bkNRB w - - 0 2 legal: proof: c4 e5 b4 c5 bxc5 d6 f4 exf4 c6 Bd7 c5 Bf5 c7 Bc8 c6 a5 Ba3 Ra6 Bc5 Rb6 g3 Rb3 g4 Rg3 hxg3 dxc5 Nh3 b6 Ng1 b5 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Ke5 e4 Kd4 a4 h5 d3 g5 e5 c4 e6 b4 e7 b3 e8Q h4 Qe7 b2 Qde2 c3 Qg2 h3 Qg7+ Nf6 Qg6 h2 Qh6 c2 Qg7 Bb4 Qh6 Nbd7 Nd2 Kc3 d4 b1N d5 Ne4 d6 Nec5 Bb5 Nf8 d7 Qf6 d8N Na3 Qe2 Qe5 Qe6 Nc4 Nf1 Nb7 Re1 Nb6 Q2c4+ Kb2 Rd1 Na8 Rd6 Kc1 Qb3 Rh7 Qec4 Rd7 Rg6 Kd1 Ba6 Rd5 Bb5 Bd7 c8N Ke1 Nd6 Bc8 c7 Rd2 Nc6 Rd3+ Kg2 f3+ Kh3 f4 Nb8 f2 Nf3+ Ke2 Rg1 h1B N3d2 Be4 Kh2 f3 Kh3 Bcf5 c8B Ke1 Bcd7 Ke2 Bdc6 Bc8 Ne3 f1N Bd5 Nh2 Nef1 f2 Bdc6 Nf3 Kg2 Bef5 Be4 Ke1 Bd5 Nd4 Be4 Nde6 Bf3 Nec5 Bfc6 Rd4 Kf3 Nd3 Be4 Nb2 Ke3 Qh8 Bh1 Bd3 Kf3 Be2+ Ke3 Rd3+ Ke4 Qg7 Qc7 Bd1 Qcc4 Qc7 Ke5 Qc5+ Kf6 Qe3 Kf7 Qe5 Ne3+ f1B Kg8 Bf3 Rg2 B1e2 Nef1 Bd1 Rg1 Be4
R1Q1nQ1q/b1n2N1B/2k1r3/1r1p2p1/4pn1R/P2r1n2/KN1PP2r/1B1B1B2 w - - 0 2 legal: proof: g4 g5 h4 a5 b4 b6 bxa5 c5 h5 f6 Ba3 Ba6 Bb4 cxb4 Qc1 Bd3 Qd1 Bg6 hxg6 f5 Bg2 fxg4 Bh3 Nc6 Bf1 Nb8 f4 h5 c4 e5 f5 d5 f6 Kd7 a3 h4 f7 g3 a6 h3 c5 g2 a7 b3 g7 b2 Qc1 b5 Kd1 h2 Kc2 b4 Kb3 Kc6 Nf3 g1N Ka2 Nf6 g8B Ne8 Bh7 Na6 Nc3 b1R Na4 Rb3 Rb1 Rd3 Nb2 Nac7 Qc3 Be7 f8Q Rb8 Qc4 Rb6 Qa6 Bd6 Qc8 e4 a8B+ Kb5 c6 Bc5 Ne5 Nf3 Nf7 b3+ Ka1 Qf6 Rc1 Qd4 Rc4 Ra6 Ra4 Ba7 Kb1 Rg8 Bb7 Qh8 Ba8 Rg6 Bb7 Ra5 Ba6+ Kb6 Bc4 Rb5 Ka1 Ne6 c7 Kc6 Ra5 Nf4 Ra6+ Bb6 Ra8 Ba7 Kb1 Re3 Bd3 Re6 Bc2 Rc3 Bd1 Rd3 Na4 b2 Ka2 b1N Nb2 Ng2 Rg1 Nf4 Rg4 h1R Rh4 Re5 Qd8 Re7 c8B Re6 Ba6 Rh2 Qb8 Ra5 Bc4 Rc5 Bcb3 Rb5 Bbc2 Nc3+ Ka1 Rb7 Bb1 Nb5 Ka2 Nbc7 Qc8 Rb5
1Q1Rrn2/bqQpBR2/N5N1/prq2P1N/q2Nrp1q/2K2P1k/3PB3/1r6 w - - 0 1 legal: proof: b4 g5 e4 f5 c4 b5 h4 gxh4 a4 bxa4 b5 f4 b6 Ba6 Be2 Bb5 cxb5 Nc6 Bc4 Nd4 Bf1 Nf5 exf5 Bg7 Qc2 Bh6 Qd1 Bf8 g4 Kf7 b7 Kf6 b8Q Kg5 b6 a5 b7 e5 Bd3 h5 Rh3 c5 Qe2 c4 Qf1 c3 Ra2 c2 Rh2 a3 Rh3 e4 Bb2 c1Q+ Ke2 e3 Nc3 Ne7 Nb5 Ng6 Nd4 Qc5 Qc1 Qdc7 Rh2 h3 f3 Kh4 g5 Be7 Kd1 Re8 Nge2 Nf8 g6 Qc8 Ra1 a2 Rb1 a1Q g7 Qa4+ Qc2 Ra7 Ng3 e2+ Kc1 Ra6 g8N Rb6 Ba3 Rb5 Rg2 Bf6 Ne7 h2 Ng6+ Kh3 Rb3 e1Q+ Kb2 h1R Be2 h4 Nh5 Qf2 Qc4 Re1 Kc3 Bd8 Rb1 Bb6 Bb4 Ba7 Rg4 Qd5 Qcc7 Qg3 Be7 Qc5+ Bc4 Re4 Rb4 Qd5 Be2 Qc5+ Rc4 Kg2 Rg5 h3 Rg4 h2 Rh4 Qd5 Rc6 h1R Rf6 Qh2 Rf7 Rhb1 Ng7 Rd8 Qa8 Nh7 b8N Qcb7 Na6 Qd6 Rh6 Qh4 Qab8 Kh3 Nh5 Rh8 Ne5 Qdb6 Rg6 Qd6 Rg8 Qdb6 Rd8 Re8 Ng6 Nf8 Nb4 Qd6 Na6 Qc5+
1r1R1K1n/b1q3N1/p1NB1bPk/2p1p3/1R1RpPQ1/3Pn3/nr6/2RQ1B1b w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 h5 g4 a6 b4 c3 d3 e6 b6 h4 b7 h3 b5 c2 b6 h2 Nf3 Qe7 Nh4+ Kg7 g6 Qd8 g5 Nh6 Bf4 c1B Na3 Be7 Nc4 Rh7 Rg1 h1N Na5 Ng3 Ra4 Ngf5 Rd4 Ne3 Nc6 Bd2 f3 Ba5 Rh1 Bd7 Bg3 Bf6+ Kd6 Qc8 Be5 Be8 f4 Bd7 Rh2 Rh8 Rc2 Re8 Rc1 Qd8 Nb4 Nc6 b8R Rh8 b7 Bb6 Rc8 Ba7 b8R Rh7 Rb7 Rb8 Rb5 Qa5 Rd8 Be8 Rb7+ Bf7 Kd7 Rh8 Bd6 e5 Rb5 Bb3 Rb7 Nf7 Rb6 Rh7 Ke8 Nh8 Rb5 Qc7 Nf5+ Kg8 g7 Rh2 Rb7 Kh7 Kf8 Rb2 Rb6 Bf7 Rb5 Bh5 Rb6 Na5 Nc6 Bf3 Rbb4 Kg6 g8Q+ Kh5 g6 Nb3 Ng7+ Kh6 Qe6 Bh1 Rc2 Nc1 Qeg4 Na2 Rcc4 Rb6 Rc1 Rb8
4K1B1/1BN2NP1/1Q2Pp2/pr1r1pP1/1B1n1pb1/4nR1q/2kb2RB/4bQ1r w - - 0 1 illegal: No proof kernel
rn3nb1/3BpP2/r3Qpk1/N1Q1P2R/q1b3p1/1NK1p2P/B4BBR/r1b5 w - - 0 1 illegal: No proof kernel
q1R2Q2/2PnNrNB/3b3k/pQr5/ppbpR3/5PBr/2P3n1/1K1BB2n w - - 0 1 illegal: No proof kernel
3Rnb1N/NR1Nb2r/3r1P2/qq4pQ/BNQ1Pn2/BpK5/1pP1p3/k6b w - - 0 1 illegal: No proof kernel
1Q1BkbQ1/1bqr1r2/1KPpN3/2Q1n1R1/Q2rpp1R/p2qN1B1/2P1nP2/8 w - - 0 1 illegal: No proof kernel
4r3/7B/1P2prpq/2N1kN1P/QP1n1NRb/p3B1np/b1NR4/q2K1b1Q w - - 0 1 illegal: No proof kernel
3B2N1/1k2rRP1/3p1P1B/BN3q2/QQB3n1/p1Rb1pq1/1b3Pnp/3qrK2 w - - 0 1 illegal: No possible last move, all moves rejected
1N2NNn1/Rq1bpP2/pNQPR3/p4Kn1/4B1pB/5r1P/qk1b3q/6Qr w - - 0 1 legal: proof: e4 d5 a4 f5 exf5 h5 c4 b6 g4 hxg4 a5 bxa5 cxd5 Rh3 Nc3 Rh6 Nb1 Rh8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 f4 Kb4 d4 g5 d6 g3 d7 g4 h3 g2 f6 Bh6 f7 Bb7+ d5 Qe8 f8N Bg5 d8Q Na6 f5 Nb8 f6 Qb5 f7 Bc6 Qd7 Bf4 Kf5 Na6 Nc3 Nc5 d6 Rh6 Ne4 Bd2 Ne2 g1Q Bg2 Qh2 N2c3 Qb7 Nf6 Ne6 Re1 Ng5 Re6 Rh5 Qh1 Kb3 Be4 Rb8 Qe8 Bd7 Qg1 Rh6 Ncd5 c5 Rb1 c4 Nb6 Ka2 b4 c3 b5 c2 Qc8 a6 Qc6 Rh5 Ne8 Rc8 Bb2 c1Q Bf6 Qa3 Rc1 Nf3+ Bg5 Kb2 Rc5 Rh6 Bh4 Qb3 Qd5 Rg6 Rc7 Qa2 Qc4 Ng5 Qc6 Qa8 Ra7 Qb7 Na8 Rh6 b6 Rh5 Qa4 Rc1 Qc6 Qb8 b7 Ra1 Qg3 Rh1 Qg1 Qc8 b8N Qb7 Nb6 Rh6 Bg3 Rf6+ Ke5 Qg2 Bf2 Rf3 Bh4 Rd3 Kf5 Qh2 Qc7 Rc3 Qc6 Rf3+
4Q3/2p1N2n/2Rrk2b/pBPp1q2/NrPq2B1/3pn1R1/KR3P2/R1rQ1b2 w - - 0 1 illegal: No proof kernel
Q2K2n1/1p4b1/r4pR1/1qrn4/Q1N1BBPB/bb1N4/pp1qkP1P/B5R1 w - - 0 1 illegal: No proof kernel
3r1Q1N/2r1nQ1K/1B1bp2p/B5rr/B2pP2N/1BP3qp/1bR3P1/1k1n3R w - - 0 1 legal: proof: h4 b5 a4 g5 axb5 gxh4 d4 c5 f3 cxd4 Qd2 Bb7 Qd1 Bd5 Be3 Be6 Bc1 Bg4 fxg4 Qc7 Nh3 Qb6 Ng1 Qd8 Kd2 a5 Kd3 d5 e4 Kd7 b4 Ke6 g5 Ke5 b6 f5 b7 h3 g6 f4 b5 f3 b6 a4 g7 a3 Bh6 f2 Be3 a2 Nc3 Nh6 g8B Ra7 Nb5 Qc7 Nd6 Nc6 b8B Ng4 Rc1 a1B b7 Bb2 Qf3 h6 Be2 f1R Qf7 Rf5 Bd1 Rg5 c3 Nf2+ Ke2 d3+ Kf3 d2 Ba4 d1R Bb6 d4 Rc2 Ra1 Ba5 Nd1 Bb6 Rh5 Kg4 Ra5 B8a7 Rh7 b8Q Rd5 Nc8 Rd8 Nd6 Ra2 Ba5 Rg7+ Kf3 Rgg5 B7b6 Ra3 Ne2 Rb3 Nf4 Rb5 Nf5 Rc5 Nh4 Rc4 Bb3 e6 Nfg6+ Kd6 Nh8 Ne7 Bh7 Kc6 Bg6 Qh2 Qd6+ Kb5 Qa3 Qb8 Qd6 Rc7 Kf4 Nf5 Ke5 Be7 Qa3 Bd6+ Kf6 Ne7 Kg7 Bh2 Ba4+ Kc4 Kh7 Kd3 Bb3 Bd6 Qc5 Qb7 Qcf5 Qd5 Qf8 Qe5 Be8 Qg3 Bea4 Bba3 Ra2 Bb2 Q5f7 Kd2 Qf1 Kc1 Q1f7 Bba3 Rf2 Kb1 Rc2 Bb2
3B2QQ/3p1Rb1/B1Q2Pbq/3NN2k/1r1pqP1b/2Rnpp2/2Q1P3/n2K2q1 w - - 0 1 illegal: No proof kernel
R1n2N2/7R/Nqk1B1r1/pp1bn3/1rp3rP/K1PqN3/2NB1pnP/3QQ3 w - - 0 1 illegal: No proof kernel
2q2Q2/1P5n/QpRKp1n1/1Pp3NB/q4p2/2N1k2q/3NPRB1/bnr3Nb w - - 1 2 legal: proof: c4 g5 a4 d5 cxd5 Bg7 f4 gxf4 a5 Bh6 a6 Bf8 d4 h6 g4 b6 g5 Bb7 g6 Bc8 Be3 Nd7 Bf2 Rb8 Bg3 Rb7 axb7 a5 Bh4 Nb8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 c5 h4 f3 b4 f2 g7 a4 b5 a3 h5 a2 h6 g4 h7 g3 Rh6+ Be6 Bg2 f1Q Qa4 Qc8 Nc3 Nc6 Qa6 Ne5 Rb1 a1Q Rf6 Nh6 g8B Nhg4 Rd1 Qa2 Rf2 f5+ Kf4 Nf6 Bf7 Qa1 Bh5 Qa4 Rd3 Rg8 h8N Nh7 Ng6 Bg7 Nh4 Bf6 Nhf3 Ng6+ Ke3 f4+ Ke4 Bd7 Nd2 Bh8 Re3 e6 Rd3 Ke7 d6+ Kf6 Re3 Be8 d7 Kg5 d8N Bc6+ Nd5 Kh4 Nf7 Rd8 Ng5 Bg7 Bgf3 g2 Rc3 Kg3 Rd3 Bd7 Nc3 Be5 N1h3 g1N Bg2+ Nf3 Ng1 Rh8 Bh1 Qh3 Bg2 Qd1 d5 Qa4+ Rd4 Rd8 d6 Bc6+ Nd5 Bg7 d7 Rg8 d8Q Bf6 Rb4 Ba1 Qf8 Rg7 Rd4 Rd7 Kd3 Rg7 Nc3 Rg8 Ndb1 Nd2 Rd6 Bf3 Rc6 Rg7 Na3 Nb1 Nc4 Bd5 Nd2 Rg8 Bf1 Bh1 Bg2 Rg7 Nc4 Rd7+ Ke4 Rd5 Qa7 Rd1 Qa6 Nh8 Ke5 Rc1 Kd6 Ng6 Rf1 Qa2 Nd2 Qa4 Rd1 Kf2 Rf1+ Ke3 Rf3+ Kd4 Rf2 Ke3
1bN2QB1/1QrnnPq1/K1Q2P1R/2p1np1N/6Rp/1qP5/Q1p2qb1/5kB1 w - - 0 1 illegal: No proof kernel
R1n4N/n1Q1P1p1/k4p2/2PK1PpN/1rpbrQR1/1r3B1n/N1qr1N2/6B1 w - - 0 1 illegal: No proof kernel
2R4R/1bN1n2B/p1b1pn2/P1B1N2k/Nb3P1q/4p2P/b1pQ3n/r3NKQ1 w - - 0 1 illegal: No proof kernel
2B2k2/3p2NQ/2p5/1b4p1/2B2Kn1/RpP1PbP1/nbq2R1n/RNrRn2Q w - - 0 2 illegal: No possible last move, all moves rejected
1rB5/3rnqnk/1p2Q1pn/K1Qb4/1NP1r3/BP1RQ1p1/Pp6/rQ3RN1 w - - 0 1 illegal: No possible last move, all moves rejected
1b4kB/p1R2p2/B2qrp2/1N1Qn1K1/2bBB2P/Q2b1b1p/4RPP1/1n2n2N w - - 0 1 illegal: No possible last move, all moves rejected
8/R1PBr1pq/4r1k1/5pBp/3rB1QP/3B1Q1N/bp1nnnP1/Nr2K1R1 w - - 1 2 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 f3 d5 exd5 e5 f4 e4 Kd2 Bd6 Ke1 Be5 fxe5 Ra5 Ke2 Ra4 Ke1 Ra8 h4 b5 a4 h5 c4 f5 d6 Kf7 a5 b3 c5 b2 e6+ Kg6 d7 d3 c6 e3 a6 d2+ Ke2 b4 e7 b3 a7 Rh6 c7 Nf6 Ra6 Qg8 d8Q Nc6 Ra3 Be6 Qd3 Ne4 Nh3 Rd8 a8B Rd4 Ra7 Qh7 Na3 b1R Rg1 b2 e8B+ Bf7 Qa4 d1N Bd7 Ndf2 Ke1 e2 Qf3 Ba2 Nc2 Nd2 Qc4 Nb4 Bb7 Nd5 Na1 Nc3 Qb4 Kf7 Be4 Re6 Qa4 Kg6 Qd1 Nb3 Be3 Nd2 Bg5 Bb3 Qg4 Re7 Bd5 Nfe4 Ba8 Ba2 Bac6 Nc5 Kf2 e1R Bd3 R1e6 Qdf3 Ne2 Ba8 Na4 Bd5 Nac3 B5e4 Nd1+ Ke1 Nf2+
1n3rB1/b1QRBr1Q/1p4p1/2R1PpP1/k2q1P1K/1p1N1r2/1BbB1N2/2r4q w - - 0 2 legal: proof: d4 a5 h4 d5 b4 axb4 c4 e5 h5 g6 h6 Nc6 cxd5 Nce7 d6 Nf5 d5 Ng7 Qd4 exd4 hxg7 Qd7 Bg5 Qe7 Bc1 Qd8 f4 Kd7 Kf2 c5 Kg3 f5 e4 h5 a4 c4 a5 c3 a6 b6 a7 c2 Na3 b3 Nc4 d3 Nb2 d2 Ra5 d1R Rc5 Qe8 Nh3 Rh6 Nd3 Nf6 g8Q Qd8 Nhf2 Bb7 Kh4 Rh7 g4 Rf7 Bd2 c1R g5 Rb8 Be2 Rf1 a8Q Bg7 Qh7 Rc8 Ng4 Rf3 Rd1 Qh8 Bf1 Rcf8 Qb8 Ba6 Ngf2 Bc4 Nb4 Bd3 Be2 Bc2 Bc4 Ng8 Nbd3 Be5 Ne1 Ne7 Ned3 Nc6 Qc7+ Ke8 d7+ Ke7 Rg1 Nb8 d8B+ Ke8 Bf6 Bd6 Ba1 Qd4 Rd1 Be5 Qb7 Bc7 Bb2 Kd7 Qa7 Kd6 Rb5 Kd7 d6 Kc6 d7 Bd6 Re5 Bc7 Bd5+ Kb5 d8B Bd6 Qc7 Ka4 Re7 Be5 Rd7 Bd6 Rg1 Be5 Be7 Bd6 Rg3 Be5 Kh3 h4 Be6 Bd6 e5 Na6 Qh8 Re3 Nb4 Rf6 Qc4 Bb8 Qc7 Ba7 Qh7 Nb8 Bg8 R6f7 Rf3 Re2 Rc3 Re3+ Kh2 h3 Nbd3 Rg3 Rc5 Rf3 Nh1 Rf2+ Kg3 h2 Kh4 Rf3 Nhf2 h1Q+
1Q2Nk2/2Rpn1qK/r2r1r2/2Q1ppB1/bq1BPPP1/2NR4/n1N1p3/N3r3 w - - 1 2 illegal: No possible last move, all moves rejected
2rR1bN1/p1p1NQBk/qb5p/r6R/2P1qR1Q/p1Rr1B2/PP2n1rK/8 w - - 1 2 illegal: No proof kernel
n1N1NrN1/2p4n/p2p2k1/pQ2B3/3PR1NK/P1P1R3/r2B3b/Qq3rqr w - - 1 3 legal: proof: g4 h5 Nc3 e6 Nd5 e5 d4 e4 Nb4 Bd6 Nd3 exd3 Bg2 Bc5 Bf1 Bf8 gxh5 Ne7 f3 Ng8 Bh3 Rh6 Be6 Rh7 Bc4 Rh8 Ba6 bxa6 Qd2 Bb7 Qd1 Be4 fxe4 Qf6 Kd2 Qe7 Ke1 Qd8 Kf2 f5 Kg3 Kf7 h4 g5 b4 g4 h6 d6 e5 a5 e4 a6 a3 d2 b5 Nf6 h7 Qe7 b6 Qd7 h5 f4+ Kh4 g3 b7 g2 e6+ Kg7 c3 f3 h6+ Kg6 e5 f2 e7 f1R e8N Rg8 h8N+ Kh7 e6 Nh5 e7 Rg3 Ng6 Bg7 Nf3 g1R Nfe5 Rgf3 Rh3 Re3 Ng4 Re2 Re3 Qb5 Re4 Nd7 b8Q Qf5 Qb5 Nhf6 Qe1 d1Q Bd2 Nb6 Re3 Kg8 h7+ Kf7 h8B Nh7 Nef6 Qfb1 Ng8 Be5 e8N Bh2 N6e7 Rh1 Nc8 Kg6 Be5 Rb8 Ra2 Na8 Re4 Qdc2 Qc1 Qd1 Qcb2 Ref2 Qa1 Qe1 Rc2 Qe3 Ra2 Re2 Rc2 Qg1 Rc1 Ref2 Rce1 Rf8 R1e3 Rb7 Qd5 Rb2 Qb5 Ra2
2n1b2n/1R1p1qp1/pq1Q1PBq/1R6/k3pKQ1/1b1q1RP1/3P1rR1/2B1N1N1 w - - 1 2 illegal: No proof kernel
B2b4/1bRpRQnp/b1nQ3B/3pP1p1/k3qQ2/1N2NqPQ/3K3P/3qn3 w - - 0 1 legal: proof: d4 a5 b4 axb4 e4 f5 d5 b5 d6 cxd6 Nf3 d5 Be3 f4 Bc1 Ra6 Ng1 Rf6 f3 g5 Ke2 e5 Ba3 Rf5 Bb2 Nf6 Ke1 Kf7 Ba3 Bd6 Bc1 Re8 exf5 e4 Ba3 e3 Bc1 Re4 fxe4 Qc7 Nh3 Qa5 Ng1 Qd8 a4 Ke8 c4 f3 c5 b3 g3 b2 a5 b4 c6 e2 a6 b3 a7 f2+ Kd2 e1N a8Q Ng8 f6 Be7 f7+ Kf8 c7 Ba3 Qg4 Ke7 Qh3 Kd6 f8Q+ Qe7 Qa6+ Kc5 Nf3 Kb4 Qf4 Qd6 Nc3 b1Q Nd4 b2 Nb3 Ng2 Nd1 Nh6 Ne3 Ne1 Bb5 f1B Bc6 Bd3 Ba8 Qf8 Qad6+ Ka4 e5+ Bc4 Rf1 Bb7 c8Q Nc6 Qe8 Nf5 Qf7 Qe4 Ra2 b1Q Rc2 Bc5 Ba3 Bb6 Rc3 Bca6 Rc4+ Nb4 Rc7 Ng7 Qf2 Qh8 Qc6+ Bb5 Q7f5 Ne8 Rc8 Na6 Bf8 Qf6 Qd6 Bd8 Rc7 Nb8 Bh6 B5a6 Q2f3 Ng7 Qfh5 Nc2 Qfg4 Qf8 Rf7 Nc6 Re7 Qf3 Qf4 Ne1 Qhf7 Qbd1+
n2R4/2q2Qb1/5b1r/KQppp1BR/2N1P1b1/1pQ1PQ2/k3p1P1/1rBn3N w - - 0 1 illegal: No proof kernel
4b2B/4p1Qr/2p1P1b1/2N1nKNN/1pPpp1QB/RqP1bNR1/4rn2/2k5 w - - 0 1 legal: proof: c4 f5 g4 h5 gxh5 c6 e4 Qa5 b4 Qe5 Bd3 Qc3 dxc3 a5 e5 axb4 Be4 fxe4 Ke2 Kf7 Ke3 Ke6 Kf4 b5 a4 d5 h4 g6 h6 d4 h5 b3 h7 b2 h6 b4 a5 Ra7 a6 Bd7 Ne2 Nf6 Rh3 Be8 Nd2 b1B Rg3 Nbd7 Ra3 Ng4 Nf3 Bc2 Be3 Ra8 a7 Bf7 Qg1 Bd1 Bd2 Bg7 Be1 Rag8 a8N Bf8 Nb6 Rg7 Rg2 g5+ Kg3 Kf5 e6 Rg6 Nf4 Nde5 Nh5 Rg7 Na4 Rhg8 h8N Rh7 Nf6 Be8 Kh3 Kf4 Nc5 Bf7 Rg3 Bg7 Rb3 Ra8 Qg2 Ra2 Ra3 Be8 Nf7 Re2 Ng1 Bf8 f3 Ke3 Nh5 Bg7 Bf2+ Kd2 f4 Kc1 f5 Bf8 f6 Bg7 Be1 Bf8 Nf3 Nf2+ Kh2 g4 N7g5 Bg7 f7 Bf6 f8Q Bf7 Nh3 Bg5 Qg7 Be3 Nhg5 Be8 Rh3 Bf7 Kg3 Be8 Kh4 g3 Qg1 g2 Rg3 Rh8 h7 Bf7 Qh2 g1Q Qg2 Rg8 Qg6 Rg7 h8B Rh7 Qg7 Rd2 Nh2 Bg4 Qh3 Re2 Nhf3 Bf5 Qg4 B5g6 Ra7 Be8 Ra3 Bgf7 Rg2 Nd1 Kh3 Qf1 Bh4 Qe1 Rg1 Qd2 Rg3 Qc2 Rg1 Qb3 Kg3 Bf2+ Kf4 Be3+ Kf5 Kb2 Nd7 Nf2 Rg3 Kc1 Nc5 Bg6+
Rn1B4/KQ3Nbb/B4N1p/R2pnP1n/2P2r2/4Bp2/1BppkP2/2Qb3q w - - 0 1 illegal: No proof kernel
1Q2K1N1/3B1bpp/pR3P1Q/3P2P1/1r2R2p/4N1qb/2Nrpb2/1kBnr2N w - - 0 1 illegal: No proof kernel
1n6/2pq2p1/B1Qb2Nr/1QpQ4/N2RbK1p/k1p4q/P1P2RQP/3r1qB1 w - - 1 2 illegal: No proof kernel
Q2Kn2B/R3p1RQ/PB3p2/nq2b3/Pq6/n4P1p/prNkB2p/B2N3r w - - 0 1 illegal: No proof kernel
q3b2N/qBN1n3/1NQ1Rq1p/NPB2pp1/2p5/pRK3b1/1nP2PQ1/k3n3 w - - 0 1 legal: proof: g4 b5 a4 bxa4 e4 a5 h4 f5 e5 h6 g5 Ra6 h5 Rf6 Ba6 g6 Bf1 Rh7 Bg2 Rg7 gxf6 g5 e6 Rg6 hxg6 dxe6 Bh3 e5 Bf1 e4 d4 Kd7 Kd2 Kc6 b4 Kd5 g7 c5 b5 e5 f7 a3 Nh3 a4 Qg4 e3+ Kc3 e2 Bg2+ e4 Be3 e1N Nd2 a2 Nc4 a3 Rb1 Qe7 Rb3 Na6 Na5 c4 Rg1 Qa7 Nf4+ Kd6 d5 Ke5 d6 Nb4 d7 Ne7 d8Q Bd7 g8N Nbd3 Qe8 Nb2 Ne6 a1Q Bc5 e3 Nf6 e2 Bb7 Bg7 Qa8 Be8 Nd5 Bf6 f8N Bh8 Qh3 Ke4+ Bd4 Be5 Nec7 Bg3 Bc5 Ke5 Ng6+ Ke4 Nh8 Ke5 Bd6+ Ke4 Kb4 Kd4 Bc5+ Ke5 Qh5 Nd1 Qf3 Ng2 Bc8 e1Q+ Rc3 Qe4 Rb3 Qad4 Nb6 Qd6 Na6 Qf6 Nc7 Qd5 Ba6 Qd8 Qac6 Qda8 Bd6+ Kd4 Bb7 Nb2 Re1 Nd1 Re6 Ne1 Rb2 Qc8 Qg2 Qca8 Ka4 Kc3 Bc5 Kd2 Kb4 Kc1 Rb3 Nb2 Nd7 Kb1 Nb6 Qg6 Kc3 Ka1 Qd6 Qf7 Qdc6 Qf6+
R1N5/pbpQBp1B/R6b/n2Pq1Np/6q1/P2pR2P/1rR3Q1/k1K1b1b1 w - - 0 1 legal: proof: d4 e5 c4 b5 f4 bxc4 f5 e4 f6 Na6 Na3 Rb8 Nb1 gxf6 Bh6 f5 Bc1 f4 e3 Rb5 Na3 Re5 Nb1 d5 Qe2 Nb4 Qd1 Nc6 dxe5 d4 Ke2 d3+ Ke1 Nd4 exd4 Bh6 Be2 Bg7 Bf1 Bf8 Kd2 Kd7 g4 Ke6 b4 Kd5 h3 h5 b5 f3 g5 f2 e6 Qd6 g6 Qe7 b6 Nf6 g7 Bd7 g8Q Bc8 b7 Nh7 b8R Bb7 Nf3 Ng5 Ba3 c3+ Kc1 Kc4 d5 e3 Bg2 f1Q Ra8 c2 Nbd2+ Kc3 Nc4 e2 Rh2 e1B Nd6 Ne4 Ng5 Nc5 Be4 Qg2 Bh7 Bh6 Nc8 Qg4 Rd2 Qf6 e7 Qe5 Qd8 Rg8 e8R Rg6 Rf2 Rb6 Qf3 Rb2 Qg3 Ne4 Qg1 Nd2 Qd7 Nc4 Be7 Na5 Qf1 Qb4 Qg2 Qg4 a3 Kb3 Rb1 Ka2 Re2 Rb6 Rb4 Ka1 Rf4 Rb2 Rf6 Bf2 Ra6 Bg1 Kd2 c1B+ Kd1 Qb4 Rf2 Bf4 Rc2 Bg3 Kc1 Be1 Bf6 Qg3 Re3 Qe5 Be7 Qg4
2RKQ2b/Pp2RpQ1/prP1B1Rr/3PqNB1/1Np1b2n/2n3R1/2p1k1p1/8 w - - 0 1 illegal: No proof kernel
1BQ2B1Q/1qNKp1b1/bP1rPR2/7p/2N1qb1P/1B4bR/bn6/1nB1krq1 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 Kd2 Kf7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 f4 h5 h4 g5 c4 d3 b4 g3 b6 Kg4 b5 g2 e4+ Kg3 c5 Kf2 b7 d2 f5 a4 f6 g4 f7 a3 b6 g3 e5 a2 c6 Qc7 e6 Bh6 f8B Nf6+ Kc5 d5 Qg4 d1Q Nc3 d4 Qg6 d3 Qe4 d2 Bg7 Qf3 Bb5 d1B Qb4 Ne4+ Kd5 Bb3+ Bc4 Na6 b8B Bf4 Ba3 Nac5 Rd1 a1B Bf6 Ba2 Nb5 Qb7 Qa4 Nd3 Bg7 Nb2 Bb3 Rf8 Rh3 Nc3+ Kc5 Ra5 c7 Qfe4 Nf3 g1B Ne5 g2 Nc4 Bgh2 Rf1+ Ke2 Qb4 Nb1 Qc3 g1Q+ Qd4 Rf7 Bf8 Bhg3 Rf2+ Ke1 Qh8 Nd1 Bc1 Bg7 Ba7 Nb2 Bb8 Bd7 c8Q Ra3 Ba4 Rc3 Nc7 Bb5 Bb3 Ba6 Nd5 Qa7 Kc6 Qa8+ Kd7 Qb7+ Nc7 Rc2 Ne5 Rc6 Nc4 Bg5 Rg2 Rf1 Rf2 B5h6 Rf5 Bhf4 Rf6 Rd6+
B1bN4/p1np4/1B3Qnk/qR1Pn1nr/P1Q3KR/2qP3r/7b/qN1Q1Q1n w - - 0 1 illegal: No proof kernel
6nR/1Q3K1Q/prq3Q1/2Q4p/P1B1r2k/B2R1Pnq/2N1qbrP/1q1b1q1N w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 Ba6 fxg4 Bb5+ Qd7 Bf1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 b5 a4 g5 d4 a6 c4 e3 c6 b4 d5 e2 d6 e1R+ Be2 b3 c5 b2 c7 Qe8 d7 Nc6+ Ke6 Nd4+ Ke5 Kh4 d8Q h5 c6 g3 Qb3 g2 Qdd5 g4 Qc3 g3 Qcb3 Rh6 Ra3 Nf5 Nh3 g1Q Qdd3 g2 Qbc2 Ng3 Qg6 Qf1 Rg1 Bg4 c8Q e6 c7 Bc5 Rd3 Qc6 Na3 b1Q Qb7 Be3 Rh1 g1Q c8Q Qgg2 Rg1 Rb8 Qbh7 Rb6 Qcb7 Bf3 Qc5 Bg4 Qgf7 Rg6 Nc2 Bf3 Ba3 Rg7 Ng5 Qh3 Ne4 Bg4 Qfg6 Bf3 Rd2 Bg4 Bd3 Bd1 f3 Bf2 Bc4 Qe2 Qgf7 Rg6 Rd8 Rg4 Rh1 Rg1 Qfg6 Rg2 Rg1 Ne7 Kf6 e5+ Kf7 Ng8 Rd3 Rf4+ Nf6 e4 Re1 e3 Rg1 Rd4 Ng4 Re4 Re1 Bg1 Nf2 Qf1 Nh1 e2 Rd5 Bf2 Rd8 Qg1 Rf1 e1Q Rf8 Ne7 Rh8 Qe2 Re1 Ng8 Rf1 Qd3 Re1 Qd2 Re3 Qf1 Rd3 Qde2
1rrn1R2/1pK2Nq1/bP3BP1/3Rp3/1n1qR2b/1RQ1PNbB/k1q2qQ1/5r2 w - - 0 1 illegal: No possible last move
6r1/BK3qk1/1p1Qb1qb/2qn4/1P1r1q2/NQb1rPpn/R1B1N1P1/3NNR2 w - - 0 1 illegal: No proof kernel
B2R1r1r/bq3Pp1/1pq1N2k/BP1K3b/rRR2rPQ/3nN1n1/2Q2R2/2b2n2 w - - 0 1 illegal: No possible last move, all moves rejected
1n3qqb/2B5/rNpB1Q1R/3BqrQp/BP5P/2N4R/n1P1bb2/q2nk1K1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 g5 Bd3 gxf4 Bc4 Qd7 Bf1 Qd8 Kf2 Kd7 b4 Kd6 h4 Kd5 d4 a5 g4 e5 g5 f5 g6 h5 g7 c6 b6 a4 b7 f3 Na3 f4 Bd2 e3+ Ke1 Ke4 d5 f2+ Ke2 Nf6 g8B Ra6 d6 Bg7 d7 Nd5 Be6 Rf8 Bg4 Bh8 Be6 Rf5 Rh2 Qg8 Qc1 f3+ Kd1 Kd4 d8Q e4 Bc4 f1N Ke1 e2 Kf2 Ne3 Qe8 Nc3 Be1 Na2 Rh3 Bd7 Qg6 Nd1+ Kg3 e3 Kh2 f2 Bb3 f1Q Nc4 a3 Bg3 Kc3 Bc7 e1B Ba4 Qf3 Nb6 e2 Qcg5 Bf2 Qf7 e1Q Bd5 Qee3 Qfg7+ Kd2 Q7f6 Ke1 Ne2 Qd4 Nc3 Qe5+ Qf4 Bg3+ Kg1 Be6 Qg4 Qff4 Bd6 Qh6 Qgg5 Qhf8 Rc1 Rf3 Rb1 Bg4 Rc1 Rf5 Ra1 Nd7 b8B Be2 Bbc7 Nb8 Rb1 Nc1 Rb3 a2 Rb1 a1Q Rb3 Bf4 Rf3 Bg3 Re3 Qf4 Re7 Na2 Rh7 Qe4 Rh6 Qe5 Ne4 Bf4 Rh3 Bg3 Nc3 Bf2+
1QrB1R2/3pBP1R/7Q/3PpqnN/Nb1rnr2/1b1rP1Bk/Br3r2/3n1K2 w - - 0 1 illegal: No possible last move, all moves rejected
kb1B2R1/1bbrK2p/3nbP1P/1B3R2/p1QbRR2/2nN3q/PQ1qb3/r1N5 w - - 0 1 illegal: No possible last move
QNN4r/q3q1p1/4K3/qnp2n2/kqP2BR1/6nP/bR2nbPr/1Q1R1BR1 w - - 0 1 illegal: No proof kernel
1Kq1q3/p1Rqr2b/r1b4Q/3r1Bpn/3NpBRN/4Q1P1/P1R1P1R1/nk1b4 w - - 0 3 illegal: No possible last move, all moves rejected
1nqr1NBN/k1bbnR2/np6/1Pr2p2/P5B1/1Kpq2BQ/B1q2PbR/6Q1 w - - 0 1 illegal: No proof kernel
b2NB3/1n3bn1/3r1B1k/2q1p3/n3K1R1/pP2nQ2/PQpNPb1N/rNR4n w - - 0 1 illegal: No proof kernel
1R1b2nb/p1bn1Bp1/b4rP1/P2p4/b6Q/Q2RrN2/NR1P2q1/KRr2kB1 w - - 2 3 illegal: Other
n4b2/rKN1pB2/P3n3/1NbR2Qp/3R2nP/3b1Bp1/1r2rBP1/1q1BQ1nk w - - 0 1 illegal: No possible last move
Qr6/b3N2r/2nB3p/rP2B2b/2p1RbnP/BqPK2N1/2QR2pn/r5kB w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 Ra4 fxg4 Ra2 Ba6 Ra1 Bc8 Ke2 Kf7 f4 Ke6 h4 Kd5 d4 g5 b4 a5 c3 e5 b6 e3 b7 Ke4 d5 a4 d6 a3 d7 h6 b5 a2 f5 g3 f6 g4 f7 g2 Qb3 g3 Na3 Nc6 b8Q Nf6 Nf3 g1B Nc2 Ra5 Nb4 Rh7 Nd3 Ng4 Nh2 Bd6 Nb4 Qg8 Rb1 a1R Ke1 e2 Kd2 e1N d8B Ba7 f8B Nf3+ Ke2 Bf5 Bf6 Bg6 Ba3 Bh5 Qa8 Kf4 B6g7 e4 Qc2 e3 Rd1 Qb3 Kd3 e2 Bg2 e1R Nf1 Nfh2 Rd2 Re8 Be7 Be5 Bd6 Rg8 Rg1 Rb8 Bh1 g2 Ng3 Kf3 Nd5 Bf4 Bf6 Be5 Ne7 Bf4 Ne2 Kf2 Bfe5 Rg7 Rb1 Rh7 Rb2 Kf1 Ng3+ Kg1 Re2 Nd8 Re4 c5 Qe2 Nc6 Rd2 Re1 Qd1 Rf1 Qc2 Re1 Bb2 Rea1 Ba3 c4+
7n/nkr5/p1rnnPrN/QBp3B1/1bP2q2/P2R2pB/2KBRN2/1Qb2b2 w - - 0 1 illegal: No proof kernel
1bBn4/QR1p3P/4b2K/R1Npp3/Qrr1nnQ1/b1BP1r2/4Pk1q/1NQ1n3 w - - 0 1 illegal: No proof kernel
Q1brb1nN/1Pr3Rp/1p2n3/r1p1n1B1/1Pk1NQ1b/3R1NNB/2PK4/2q2r2 w - - 0 1 illegal: No proof kernel
1R6/1p1B2Bb/3N1Rn1/1Pbb1qQ1/1kr3Qp/2q1N3/P1nb1NpP/1r1N1b1K w - - 0 1 illegal: No possible last move, all moves rejected
5B2/4NN2/4B1Kn/1qpr2p1/rP1B1QQb/q1P1pnBR/2R3Pb/kb1b3b w - - 0 1 illegal: No proof kernel
1k1n1B1b/2RppqNr/R7/K3Qp1b/BqrP3N/4Bb1b/1PnQ1P1b/2B5 w - - 0 1 illegal: No proof kernel
3K2nB/3pR2B/nq5Q/1N1b1p1q/P1nQ1rN1/1Nn2Ppr/bk2N1P1/2b1R3 w - - 0 1 illegal: No proof kernel
r7/Rq3n1k/3QbB2/B1b1pR1p/B2BPp1K/1N1N1QP1/1n1nqP2/nb2r3 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 c4 a5 b4 f5 g3 Kf7 b6 Kg7 c5 h5 b7 d5 c6 h3 c7 d3 b5 a4 b6 h2 Be3 a3 Nd2 a2 Bd4+ Nf6 Nb3 f4 Nf3 Nd7 b8B Ne5 b7 Be6 c8Q Ne4 Qc3 Qc8 Bc7 Nd2 b8B Qb7 Ba5 Kh7 e3 Nf7 Bbe5 Rg8 Bf6 Re8 Rc1 a1N Ne5 Ra8 Rg1 h1B Qf3 Bg2 Qc5 Bgh3 Qd6 Bhf5 Rc5 Rg5 Bdc3 d4 Be2 Bg6 Bd1 Rf5 Nc4 Re5 Nb2 Nf1 Rd5 d2+ Ke2 Bb1 Nd3 Re4 Rf5 Re5 Bc2 d1N Ke1 Nd2 e4 Nb2 Ke2 Rc5 Re1 Bc4 Rd1 e5 Ke1 Be6 Rc1 Ndc4 Kf1 Nd2+ Kg2 Rc6 Kh3 Rca6 Nb4 d3 Bd4 Rc6 Rg1 Rc5 Bd1 Rc1 Kh4 Be7 Bc2 Re1 Rf1 Re2 Rc1 Re1 Bd1 Bf8 Rc6 Be7 Ra6 Bf8 Ra7 Be7 Qa6 Bc5 Qd6 Ndc4 Nc1 d2 Ba4 d1Q Nb3 Qe2 Nd3 Nd2
1r1B3R/n1r2bbp/b2pN1RQ/p2r1NB1/P1PP1K2/1q2r2Q/1k1B4/q5nB w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b3 c5 b4 cxb4 Ke2 Kf7 Ke3 Kf6 g4 Ke5 c4 a5 a4 b5 f6 d6 g5 h3 d3 h2 f3 b3 g6 b4 f7 b2 g7 b3 Nc3 b1B Nd5 b2 Nf4 Nf6 g8Q Nfd7 Nge2 Ba6 Nd4 Ra7 Bd2 Rc7 Qg2 Bg7 f8B Nc6 Qc1 Qb8 Nfe6 Qb3 Rg1 h1R Qh3 Na7 Rg6 Rg1 Nf5 Rg5 Ra2 Bc2 Ra3 b1Q Bg2 Qa1 Bh1 Bd1 Ra2 Be2 Rb2 Rh5 Ng5 e6 Be7 Rb8 Bd8 Bd1 Kf2 Bc2 Kg3 Bd1 Nh4 Kd4 f4 e5 f5 e4 f6 e3 f7 e2 f8B e1R Kf4 Ne5 Bfe7 Nf3 Rb1 Ng1 Nf5+ Kc5 Bf6 Re3 Bfe7 Bf3 Bf6 Bd5 Ne6+ Kc6 Bg5 Kb6 Ned4 Kc5 Rb2 Bf7 Rb1 Qac3 Ne6+ Kb4 Rb2 Ka3 d4 Qbc2 Rb6+ Ka2 Rb5 Q2b3 Rb4 Qa1 Rb7 Rc6 Re7 Rc7 Re8 Qbb2 Rh8 Qb3 Qcf1 Kb2 Qh2 Rhh3 Qd3 Rhg3 Qh6 Re5 Qf1 Rge3 Qfh3 Rd5
B1R5/5kNR/1Prqrnpp/3p3P/1n3R1K/1Q2BRPr/n1n2q2/NQ3bb1 w - - 0 1 illegal: No possible last move, all moves rejected
4NR2/2BR2K1/bppr1p2/5B2/1qPQnP1k/rPnBb3/q1BNQ3/2n1q1n1 w - - 2 3 legal: proof: h4 g5 d4 gxh4 b3 e5 dxe5 a5 Qd6 a4 Qd4 a3 Qb2 axb2 Kd2 Ke7 Kd3 h5 Ke4 h3 Kf5 d5+ e6 h2 a4 h4 e4 h3 g4 d4 c4 b6 e5 f6 Kg6 d3 a5 d2 a6 d1N a7 c6 g5 Nh6 Bf4 Nf5 Nf3 Nd6 Nh4 Nd7 Nf5+ Ke8 e7 Nc5 Ng7+ Kd7 e8B+ Ke7 f3 Nd3 e6 Nc1 Bd7 Rh4 Be5 Rd4 f4 Rd3 Rg1 h1N Kh6 h2 g6 Qc7 Rg2 Qb8 Nd2 b1Q Ra5 Qc7 Rd5 Ng3 Re2 h1Q+ Rh2 Rb8 a8Q Nge2 Qa1 Qa2 Kh7 Qg1 Kg8 Qb7 Rh8 Ra8 Qc3 Ra3 Rd4 Kd8 e7+ Kc7 e8Q Qa7 Qb2 Qa5 Qe6 Ba6 Ne8+ Kd8 g7 Qb4 Qg4 Ne4 Bc7+ Ke7 Kh7 Kf7 Bf5 Qf2 Rd7+ Be7 Qc3 Ng1 Be2 Rd4 Bd3 Qe1 Qe2 Rd5 Qe5 Ndc3 Bc2 Ng3 Bfd3 Nge4 Kh6 Rd4 Qc5 Ke6 Rf8 Rd5 g8B+ Kf5 Qcf2 Bc5 Kg7 Rd6 Qfe3 Nf3 Bf7 Kg4 Be6+ Kh4 Bf5 Ng1 Q3f2+ Ng3 Qfe3 Bd4 Qe4 Be3 Qd4 Nge4
1QqnB3/np1p3B/NN1b3B/p5r1/Rr1P1PK1/P2nk3/2B2bbq/n5RQ w - - 0 1 illegal: No proof kernel forced: wxLB
6QB/2pN2q1/Qp1rRN2/NK1rRpP1/1b4n1/qPk5/B1P1rN2/1bn1qr2 w - - 0 1 illegal: No proof kernel
n1Rb2n1/1rNr1p2/R4Pnp/R1p4Q/qkN2B1P/1P1Q2Kn/n5b1/2RB1n2 w - - 0 1 illegal: No proof kernel
1rR3b1/qQ1b1R1b/bp5r/3BpN1n/1Q1r1p2/NrB1PQ2/kP3Pn1/5QK1 w - - 2 3 illegal: No extended proof kernel
2n2K2/N1B1pN1P/bQ1nq3/b3N1n1/pr4Q1/4PB1b/PpR1N3/r1bkn1R1 w - - 0 1 illegal: No proof kernel
q1n1RB1b/p3B1R1/B1q2Qpp/2B1Q1PP/PNK2r1r/r4k2/r2rNn2/4r3 w - - 0 1 legal: proof: e4 d5 c4 dxe4 f3 b5 Bd3 bxc4 Be2 Nf6 Bf1 Ng8 Ne2 e5 Ng3 e3 Ne2 e4 Ng1 Bg4 Qc2 Be6 Kd1 Bd5 Qb3 e2+ Kc2 e3 Qa4+ Nc6 Qb3 Be4+ fxe4 Nf6 Kc3 Nb8 Qd1 Ng8 Kc2 Qg5 Kc3 Qd5 Kc2 Qd8 Kc3 Ke7 d4 Kd6 b4 e1R g4 c5 h4 f5 a4 f4 e5+ Kd5 g5 Ke4 b5 e2 e6 f3 e7 f2 e8Q+ Ne7 d5 g6 d6 Nd7 b6 Nf6 d7 Bg7 b7 Ng4+ Kc2 c3 Kb3 c2 b8B c4+ Kb4 c3 Ba3 c1Q Kc4 c2 Qd6 Be5 Rh3 Nc8 Bc5 Rd1 Ra2 e1R Qf6 Rd2 Bbd6 Rb8 Na3 Rb3 Ne2 Rb2 Ra1 Ra2 Qee6 Qe8 d8B Qc6 Bf8 Qa8 Qd6 Bb2 Rh1 Bc3 Qfe5+ Kf3 Bde7 Bb2 Rb1 Bc3 Rb7 Bd4 Bh3 f1R Qd8 Nf2 h5 h6 Rh2 Rh1 Bf1 Ba1 Rg2 Rh4+ Rg4 Rh7 Re4 Rf7 Qdd6 Rff4 Qdf6 Qd1 Rc7 c1R+ Nc2 Rb1 Nb4 Rb3 Bed6 Re3 Rg7 Rea3 Bde7 Qb1 Bh3 Qb2 Bd7 Qb1 Bb5 Bc3 Ba6 Qb2 Nc6 Qb6 Nb4 Qbc6 Rd4 Ne4 Rd8 Ba1 Re8 Bd4 Qfe6 Nf2 Q6f6 Nh3 Rh7 Bg1+ Qe4+ Kg4 Qb2 Bd4 Qa1 Bh8 Qf6 Nf2 Qed4 Kf3 Rg7 Ne4 Qde5 Nf2+
2nN1b2/q3pbKn/1pBpQ1N1/3P1pRr/4Nr1Q/3N1PPR/3B1nk1/2b3q1 w - - 0 1 illegal: No possible last move
5KN1/1b1q1QRp/1k3rBN/b4nR1/2p1n1P1/3Np3/1BPNPp1q/nr3Qr1 w - - 0 1 illegal: No proof kernel
r1R4r/pnQ3p1/n1p1Bn2/4B1K1/1RpbNqb1/2B3B1/P1PP2r1/1QqN1k2 w - - 0 1 illegal: No proof kernel
1QQ1Qq1n/2r2p2/4p2k/r6N/1BqpK1n1/bNp1Pr2/1b1PRPb1/3R1B1Q w - - 0 3 legal: proof: c4 g5 h4 b5 cxb5 gxh4 Qb3 Bb7 Kd1 Na6 Kc2 Bc8 Kc3 Nb4 a3 Nc2 Qa4 Nxa3 Qd1 Nc2 Kd3 a5 g4 h5 b4 c5 g5 d5 g6 a4 b6 h3 b7 c4+ Kc3 d4+ Kb2 a3+ Ka2 e6 b8Q c3 Kb3 h4 Kc4 h2 Kd3 h3 g7 a2 b5 Ba3 b6 Bb7 Qe5 Ra5 Qc5 Ne7 Qc8 Bg2 b7 Ne3 b8Q Ng4 e3 Ng6 g8Q+ Ke7 Qe1 Kf6 Qe8 Kg5 Ne2 Kh6 Ng3 Qd5 Rg1 h1Q Nh5 h2 Qd1 Qb3 Qf3 Rg8 Ke4 Nh8 Bb2 Qc4 Bc1 Bd6 Na3 Bf8 Nc2 Ba3 Rb1 a1B Bb2 Rgg5 Re1 Rgc5 Re2 Rc7 Bc1 B1b2 Na1 Bh3 Nb3 Qg2 Nf4 h1R Nh5 Qh2 Qg2 Qd6 Qf3 Rh2 Qg2 Qf8 Qh1 Ba1 Bb2 Rg2 Bc1 Rg3 Bb2 Rf3 Bc1 Be7 Ba3 Bb2 Bb4 Bc5 Bg2 Be7 Rd1 Bc5 Bf1 Bg2 Ba3 Ba7 Bd6 Bc5 Be7 Bca3 Bd6 Rg5 Bb4 Ra5
1Q2Qb1n/P1r3Bp/2nr3P/3Nbp2/2RqpP1Q/kp2Q3/Bb2R3/1bbK2N1 w - - 0 1 illegal: No proof kernel
1b1B1rN1/4q2p/rPk1B1p1/1n2pbP1/R1Br4/p2bP1KB/1NQ3b1/Qn2R3 w - - 0 1 illegal: No proof kernel
5bbB/1kbrrBq1/Rr1RQ2P/1n6/4pB2/2pB1bpp/1QN1P2P/N3Kn2 w - - 0 1 illegal: No proof kernel
N1QR2qk/1N1nBb1B/2P2bR1/p1r3b1/KRpR1Qn1/P1pp4/nn1P4/1r6 w - - 0 1 illegal: No proof kernel
Nq4r1/P3B3/4ppRp/p3rr1B/1Q2RPbP/Rb4n1/Qr2n2b/R2K2Nk w - - 0 1 illegal: No proof kernel
QN5r/2p2q1p/B1Nb3n/1PP3QP/rR1np2p/1NK1n3/2r1b1nR/B1N3k1 w - - 0 1 illegal: No proof kernel
4QB1K/kp3N1p/4pb1P/nr1QPr1q/r2Rbb2/1Pr2RB1/4B1p1/nN5B w - - 2 3 legal: proof: g4 f5 d4 fxg4 Nc3 c5 Nb5 cxd4 Nxa7 Qb6 Nf3 Qc7 Ng1 Qd8 Kd2 d5 Kd3 Kd7 a4 Kc7 e4 Kb6 h4 g5 f4 g3 c4 g4 h5 g2 b3 g3 a5+ Ka6 h6 e6 c5 Qc7 c6 Qb6 f5 Nf6 c7 Bg7 Ra4 Ng4 f6 Rf8 f7 Qc5 Ne2 g1B Bf4 Bd7 c8B Bc6 Nb5 Bh2 Nd6 Ka7 a6 Bf6 Nc3 Ne3 Nb1 Nc2 Be2 Na1 Bd7 Rc8 f8B Qb5+ Kd2 d3 Ke3 d2 Rf1 d4+ Kf3 d3 Kg4 Bd5 Rf3 Rc3 Rd4 Nc6 Nf7 Na5 Bc6 Qc5 Qh1 d1R Kh5 d2 e5 Qd6 Qg2 Rf1 Qh1 d1R Qg2 Kb6 a7 Be4 Bd5 Rd2 Bc6 Ra2 Bd5 Rac8 a8Q R8c5 Qe8 Ra4 Qh1 Rb5 Bc6 Bg7 Kg5 Rf2 Qd1 Ka7 Qd3 Qa3 Qc4 Qc1 Qd5 Qd1 Be7 Bf8 Kf6 Rf1 Bb4 Be7+ Kg7 Bf6+ Kg8 Bg1 Bf8 Be3 Bg5 Bf4 Bh4 Be7 Kg7 Rf2 Kh8 Qh1 Bf6 Qh5 Bh4 Bf6+ Kg8 B4g5 Re3 Bg6 Qc5+ Rb6 Bh1 g2 Qd5 Rb5 Bg3 Be4 Red3 Rf5 Rf3 Be7 Kg7 Bf4 Kh8 Bf6+
1Nr1N2q/1p2bpKR/1R1NB3/Bn1Qp1n1/b3P3/PQp2b1n/4kP1N/2n2r2 w - - 0 1 illegal: No possible last move
2B4B/2k1N1p1/1p1r1b1Q/rnp3r1/pP1N1RR1/P1b2r2/N1q1NQP1/2b2Kn1 w - - 0 3 illegal: No proof kernel
n1K3BN/2bBR1B1/Bp2p1p1/QP2P1p1/qQ1P4/1NnR4/r3bq2/1rq1q2k w - - 0 1 illegal: No proof kernel
4kb1r/q1RN2r1/Bp1Krp2/q2pPB2/1P4rp/n4nQ1/2b3QP/BB1R3N w - - 0 1 illegal: No proof kernel
4r2B/2r4R/Bp2p1BK/3nbp2/1k1p2bP/1B1qq2R/1P1N1P1q/1NQ2Qqn w - - 0 1 illegal: No proof kernel
2N2Knn/nB2q3/1rQ2BB1/pqR1p1QB/P3Pp1p/3b3R/1kn2P2/2N1n1b1 w - - 0 1 legal: proof: d4 g5 c4 b5 h3 bxc4 h4 gxh4 Na3 a5 Bg5 c5 Nb1 c3 Bh6 c4 Bc1 Ra6 Qd3 Rc6 Qd1 Rc5 dxc5 Bh6 Rh3 Bg7 Rh1 Bf8 a4 h5 b4 d5 e4 Kd7 Ke2 Kc6 Ke3 f5 Kd4 c2 Ke5 d4 g4 c3 g5 d3 g6 h3 g7 d2 Nf3 h4 Na3 h2 Be2 Rh6 Nb5 Ba6 Qg1 d1N Nd2 Ne3 Bb2 c1N Qg5 c2 Nd6 Bd3 Bh5 Ne2 Nc8 c1N Nb3 Nf4 Bg6 Nc2 b5+ Kc7 b6+ Kc6 Bh5 Ng6+ Ke6 Nh8+ Bf6 Qe8 b7 Qd8 Rd1 h1Q Ra3 Qe1 Bg6 Qb4 Rh1 Qb5 Rh3 Na2 Bh5 Ne1 Nc1 Nb4 Rc3 Nbc2 Rc4 Nd7 b8Q Nb6 Rc3 Qc7 Qa8+ Qb7 Nd6 Nc8 Rc4 Na7 Nc8 Ng6 Kf7 Nh8+ Ke8 e6 Bg6 Bd6 Rc3 Bc7 Kf8 Bh2 Rc4 f4 Rc3 Ne7 g8B e5 B8f7 Bg1 Bh5 Ng8 Bfg6 Kd7 c6+ Ke6 Nb6 Kd6 Rc4 Qh7 c7 Qhd7 c8B Qe6 Rb4 Kc5 Bb7 Qed7 Rb1 Kd4 Nc8 Kc3 Rb4 Qe6 Rc4+ Kb2 Rc5 Rh7 Bd5 Rb7 Bc6 Rb6 Qb7 Nf7 Qa6 Nh8 Bb7 Qbc6 Qc4 Qb5 Qd5 Qed7 Qc6 Qe7+
2R1Qb1n/P2ppp2/B3R3/p2qnk1b/3Qr2p/P3Rb2/r2B1P1r/K2N1NR1 w - - 0 1 illegal: No proof kernel
2rk2q1/Q1rnp2N/2QK2Pp/p2RR1Q1/1Np1B2p/3nn3/PBb1Pb2/3r3Q w - - 0 1 illegal: Other
6nQ/3p4/ppk2q1q/3p4/PBrQRn2/B1pP2Kb/B1Pb1N1R/2rB1n1N w - - 0 3 illegal: No proof kernel
7k/bb4r1/1rnp1rB1/QPp1qpQ1/2nR3p/NpBP1P1R/3r2B1/2B1K1N1 w - - 0 1 illegal: No proof kernel
1q1N2nK/P1Q1q1nb/k2BQ1PP/8/1n1p1r1N/3R1q2/bRn3Q1/NR6 w - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 e3 Ra3 e4 Ra8 a3 f6 Bc4 f5 Ba2 b3 exf5 bxa2 g3 h5 Qe2 b5 Qd1 h4 g4 Ra6 Ke2 Rah6 Ke1 Rh5 gxh5 Ba6 Bh6 Bb7 Bc1 Bc8 Kf1 g5 Qg4 Bg7 Bb2 Be5 Ke1 Bg3 Qd1 g4 Bc1 Bc7 Be3 g3 Bf4 g2 Bc1 Bg3 hxg3 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 e5 Kc3 d5 f4 Kd7 f6 Kc6 f5 Kb7 a4 h3 f7 h2 f8N e4 Kd4 e3 Ke5 b4 c4 d4 a5 e2 h6 e1Q+ Qe2 b3 c6+ Ka7 g4 b2 c7 Na6 g5 Nb4 a6 Nd5 c5 Be6 c8Q Nge7 g6 Qc3 f6 Nc7 f7 Qb3 Kf6 Qd1 Kg7 Bg4 c6 Qd6 Nf3 g1Q Qg2 Ncd5 c7 Be6 Bf4 Ng8 Nh4 Qf3 Nd2 b1B Nb3 Qge3 Rd1 h1N Rd3 Nb4 Bh2 Bd5 Ne6 Ng3 Nd8 Qee7 Qe6 Bc4 c8Q Qb8 Qe5 Kb6 a7 Be6 Qcc7+ Ka6 Nc6 Nf6 Qe4 Rf8 Nd8 Ng8 Kh8 Nf5 Bd6 Ng7 Qe5 Bc2 Rb1 a1N Rb2 Bb1 Qf5 Bc4 Qe6 Nac2 Na1 Bba2 Rb1 Re8 f8R Bd5 Rf7 Rf8 Rf5 Rf6 Re5 Rf4 Re2 Ne3 Nc6 Nf6+ Qg8 Be6 Reb2 Nec2 Nd8 Bf7 Qf8 Bg8 Qf7 Bh7 Qe6 Ng8
8/Bk1r4/1rnK1NnQ/n2QNN2/n2b2nP/4Pr2/QpR3P1/B5bB w - - 0 1 illegal: Other
2B2r2/pN2kq1K/pr5b/n1RR1brP/3rN3/1QN1P1Rp/3Q3P/2Q5 w - - 0 1 illegal: No possible last move
R2q4/r1bk2PR/rqN4B/6B1/4nPn1/1Qbqb1RB/P4r2/1Q1KQr2 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 g4 Na3 Kd7 Nc4 Ra3 Ne5+ Ke8 Nef3 gxf3 g4 Be6 h3 Bf7 g5 Bh5 Ne2 Ra6 Ng1 Bg4 hxg4 Ra8 d3 e5 g6 c5 g7 b5 f6 h5 Rh3 Qd7 g5 e4 g6 h4 d4 b3 d6 b2 d5 b1Q Bc4 e3 Ba3 e2 Rg3 Nh6 g8Q h3 g7 f2+ Kd2 e1B+ Ke2 b4 Bb3 h2 Qd3 h1R Qgh7 c4 Nf3 c3 Nd4 c2 f7+ Kd8 Qc4 Ra6 Nc6+ Kc8 Qcd3 c1B Qc3 Be7 f8R+ Bd8 Qe3 Qe8 d7+ Kc7 Bd1 b3 Be7 b2 Bg5 Rh2 Qe6 Bc3 d6+ Kb7 Bc2 Bc7 Bf5 Rg2 Qe5 Qe7 Qe6 Be3 Qc4 Qbe4 Rh1 b1Q Bg4 Qb4 Qb3 Qb6 Rd8 Qe8 Kd1 Qf5 Rh4 Rg8 Bh3 Ng4 Qd5 Qef8 Qb3 Qd5+ Qd3 Qdb5 Qe2 f1R+ Qe1 Rgf2 Re8 Qe7 Rh8 Qf6 Bh6 Qc4 d8Q Nd7 Rh7 Nc5 d7 Ne4 Qb4 Qcb5 Qde7 Qh4 d8B Kc8 Qb1 Qhg5 Qa3 Kd7 Qab3 Qf6 Re6 Qfg5 Bf6 Rga8 Re8 R8a7 Ra8 Qh4 Be7 Qf6 Bd8 Qf8 Bf6 Qd8 Bfg5 Qd3+
7r/1Pb1PN2/K3QQRn/1NRQ1qb1/Pq1b4/4rNbn/n4RB1/3kq3 w - - 0 1 legal: proof: f4 h5 g4 a5 gxh5 e5 b4 exf4 Ba3 b5 bxa5 d6 c4 Ba6 Bc5 dxc5 Bh3 b4 Bf1 Bb5 cxb5 Qd4 Nh3 Qd3 Ng1 Qd8 h4 Kd7 e4 Ke6 Ke2 Ke5 a4 Kd4 a6 g5 h6 f5 h5 f3+ Kf2 g4 b6 f4 h7 b3 a7 g3+ Ke1 g2 e5 b2 d3 Ke3 b7 c4 d4 c5 h6 c3 e6 c4 d5 c2 d6 c1B d7 c3 Rh4 c2 Nc3 b1Q Ra3 Nc6 Bb5 Qe7 d8N Qeb4 Rb3 Bd6 Rh2 Bc7 Nf7 Re8 a8R Ba3 Rc8 c1B Ba6 Qf5 Qd5 f2+ Kd1 f1N Nb5+ Kf2 Rg3 Nd2 Rg6 Ne4 Kc2 Ke1 Kd3 Kd1 Nf3 g1B Ra2 Bd4 Rf2 Qd2+ Kc4 Ng5 Rf6 Bad6 Rg6 Nb4 e7 Nh3 Qe6 Rd8 Qd5 Na2 Qe6 Bb8 Rc5 Bdc7 Qd5 Nc3 Kb4 Rd6 Kc4 Re6 Kb4 Re3 Qe6 Bce5 Ka5 Na2+ Kb6 Bbc7+ Ka7 Nf6 Qd5 Qb4 Qe6 Re8 h8Q Ng4 h7 Nh6 Qhf6 Rh8 Qd5 Bd2 Qfe6 Bc1 Nbd6 Bd2 Bf1 Bc1 Bg2 Bd2 N3g5 f3 Ka6 Bg3 Nb5 Bc1 Rfc2 f2 Nf3 f1Q Rf2 Rb8 h8Q Qfe1 Qhf6 Rh8 Rc6 Re5 Rc4 Bg5 Rc5 Re3
5K2/1nRB1r2/QbPQ4/2N5/3brqNN/Rn1Q1r1n/3P1PrR/1rnk4 w - - 0 1 illegal: No possible last move, all moves rejected
3K1rk1/NP1B1q2/Q1rP3Q/NRq1R3/4RnP1/Q2qn2b/1n6/1Nq1q1r1 w - - 0 1 illegal: No possible last move
3qBNK1/2n1N3/bkbNrQ1B/3B1r2/1P3bpP/3Q1q1n/1Q2P1qR/2n5 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 h5 b4 Nh6 g5 Be6 Ra3 Bc8 Rg3 Ng8 Rg4 hxg4 Qa4 g6 Qa1 Ba6 Qg7 Bb7 Qxg6 Ba6 Qg7 Bc8 Kf2 Kd7 d4 a5 h4 c5 d6 c4 g6 c3 b6 Kc6 d5+ Kb5 b7 f5 d7 c2 d6 f3 Ke3 f4+ Kd4 a4 Ke5 f2 Ke6 f3 Kf7 a3 Rh2 a2 Na3+ Kb6 Nh3 a1Q Ng5 Rh5 Nh7 Na6 b8N Nf6 Nb5 Nd5 Bg2 f1Q Qb2 f2 g7 Nac7 g8B Ra6 Nc6 Bh6 Ne7 Qa3 Nf8 Nf4 Bd5 Qg2 Bh7 f1B Bg6 Rg5 Kg8 Rf5 Be8 Nh3 Bd2 c1N Bf4 Bb7 Bd2 Qc8 d8Q Bf4 d7 Qaf3 Nd6 Qb8 Neg6 Qc8 Qdf6 Qd8 Ne7 Qh1 Qfc3 Bg2 Qd3 Qhf1 Bc3 Bh1 Bg7 Q1g2 Bh6 Ra3 Qdc2 Re3 Qcb1 Re6 Qd3 Qc8 d8Q Ba6 Neg6 Qd7 Qdf6 Qd8 Ne7 Qgg3 Nc6 Qff2 Ba2 Be4 Bb3 Qgg2 Ne7 Bc6 Bd5 Qff3
1Qq1r1k1/2bn3N/1R3pK1/3bq2Q/P2P3P/Q1rRN1N1/R1rq1B2/5b1n w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 fxe5 Bc5 Nc3 Be7 Nb1 Bf8 g4 h5 gxh5 Qf6 e3 Qd8 a3 Be7 Bc4 Bf8 Ba2 b3 Kf2 bxa2 Ke2 Nc6 Ke1 Nb8 Kf2 b5 Kg3 g5 h4 c5 e6 g4 Kf4 g3 Kf5 g2 a4 c4 e4 c3 e5 c2 h6 b4 d6 b3 h7 b2 d7+ Ke7 Qh5 Ba6 Nc3 b1B Nd1 Nf6 Ne2 g1Q Ne3 Qg2 Ng3 Qc8 d8R Ng4 Rd3 Nd7 Rh2 Ke8 e7 Nf2 Bb2 c1R Bd4 Bc2 Rb1 a1Q Rb6 Bb3 Bc5 Rg8 h8Q Rc2 Qf6 Qb2 Qd6 Bd5 Bd4 Nh1 Qa3 Ra7 Bc5 Rc7 Bd4 Nb8+ Kf6 R7c3 Bc5 Kd7 e8N Bd6 e6+ Kd8 Kf5 Ke7 Nf6 Re8 Nh7 f6 Kg6 Nd7 Bd4 Qf2 Rg2 Qf4 Re2 Qe5 Bc5 Kd8 e7+ Kc7 Rb4 Rc1 Rdd4 Rh8 Nd1 Bac4 Rh2 Bf1 d3 Qf2 Rg2 Qfe1 Ra2 R1c2 Rb8 Qd2 e8Q Qa6 Rbb4 Qc6 Qa8 Re8 Rb6 Qb7 Qa7 Kd8 Qa8+ Ke7 Qb8 Bb3 Rd5 Qc8 Bf2 Bc4 Rd4 Bd5 Ne3 Ke6 Rb3 Bc7 Rdb4 Rc5 d4 Ke7 Rd3 R5c3 Ng5 Kf8 Nh7+ Kg8 Rbb2 Re6 Rb6 Re8
Bq1r3B/1qQp2KP/2R1R3/PN3n1r/2QP3R/bQn2q2/bnBb4/6k1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 Ba6 f4 Bc8 cxb5 a5 b4 axb4 g4 h5 g5 g6 Nc3 Ra5 Nd5 Ra6 Ne3 Ra7 fxg6 Ra4 f5 Ra8 Ng4 hxg4 Ke2 c5 Ke3 e5 Ke4 Ke7 a4 Kd6 h4 c4 d4 b3 g7 c3 f6 b2 Kf5 Kd5 Kg6 Ke4 a5 b1N b6 c2 f7 g3 h5 g2 h6 Ba3 f8R Na6 b7 Nb4 b8Q Ba6 Rf6 Nd3 Rc6 Nc3 Qc7 Qb8 Ne2 Kf3 Rh4 Kf2 Bf4 c1Q Qb3 g1Q Bg2 e4 Be5 Qb2 Re1 e3 Kf7 Qh2 g6 Ne7 g8B Qh1 g7 Nf5 Bh7 Bc4+ Kg6 Qb7 g8Q Rd8 Bd5 Qf3 Bg7 Nb5 Nc3 e2 Kf6 Qb1 Bg6 Rh7 Bh8 Nb2 Be4 Rg7 Bh7 Rg5 Bg6 Rh5 h7 Nbd6 Bd5 Ne4+ Kf7 Qb8 Nb5 Nc3 Kf6 Nh6+ Kg7 Qbe4 Rc1 e1B Re6 Bd2 Ba8 Qeb7 Bc2 Bd5 Rc6 Be6 Re1 Bd5 Ree6 Kg1 Qa4 Bb3 Qc4 Ba2 Qf7 Qe4 Qf3 Qf4 Qfd5 Qe4 Qb3 Qf3 Qdc4 Nf5+
4nb1k/rRP3N1/R2pq2q/4NP2/2n4K/Q1N2RP1/Q1n1r1b1/1Qq2rB1 w - - 0 1 legal: proof: d4 b5 f4 f5 a4 g5 axb5 c5 fxg5 cxd4 e4 h5 exf5 h4 g3 h3 Bg2 hxg2 Kf2 Kf7 h4 Kg7 c4 e5 b4 a5 c5 d6 c6 e4 c7 a4 g6 d3 b6 d2 b7 e3+ Kf3 a3 Kg4 e2 h5 e1Q b5 a2 b6 Qde8 h6+ Kf6 g7 Rh7 Qa4 d1Q+ Nf3 g1R Qa3 Q1e3 Kh4 Rh8 h7 Qd8 Nc3 Qd7 Nd4 Ra7 Ne6 Nc6 b8R Rf1 b7 Na5 Rh2 Qe7 Rf2 Nc4 Rf3 Qf7 Bd2 Qc1 Be1 Bd7 Bf2 Bc6 Bg1 Qg6 Nd5+ Kf7 Nc3 Nf6 g8Q+ Ke7 Ng5 Ne8 Ne6 Kf6 Ng7 Qe2 Qd5 Qe6 Qd2 Rg8 h8N Bd5 Nf7 Qh6+ Kg4 Bc6 Ne5 Rh8 Ra8 Bd5 Rb1 a1N Qda2 Nc2 b8Q Be4 Rb7 Bc6 Ng6 Kf7 Ne5+ Kg8 Rf2 Bg2 Rf3 Ra5 Ra6 Rh7 Qa7 Kh8 Qb6 Ra4 Qbb1 Ra5 Nh5 Re7 Ng7 Ra4 Rab6 Ra7 Ra6 Qef6 Nd3 Re2 Ne5 Qhe3 Kh5 Qe6 Kh4 Q3h6+
rb3BBK/Q1nP2P1/2Q1Nk2/1q2b1R1/QPbn4/r2N4/rp2r1B1/r4N2 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 a5 b4 d5 cxd5 g6 h4 a4 a3 g5 Ra2 Nf6 Rb2 Ng8 Rb3 axb3 a4 gxh4 Bxb5+ Nd7 Ba6 Nb8 Bb7 Qd7 Rh2 Qd6 Rh1 Qd8 Ke2 Kf7 Kf3 c5 Ke4 e5 g4 h5 f4 c4 d4 h3 a5 h2 g5 b2 a6 c3 a7 c2 f6 h4 g6+ Ke8 f5 h3 d6 Qe7 d5 Na6 d7+ Kd8 f7 Rh6 f6 Rh7 Kf5 e4 Nd2 e3 Ngf3 e2 Nf1 e1B Rg1 h1R Bh6 c1R Ne5 h2 Qa4 Rc3 Nd3 Qe2 Rg5 Bd6 f8N Qh5 f7 Ke7 Ne6 Nc7 Ba6 Rc2 Bc4 Beg3 Bb3 Bde5 Ba2 Rb8 a8B Re2 Bc6 Ra8 Bb3 Kd6 d8Q+ Bd7 Qc8 Ke7 Bb7 Bb5 Qb8 Bc4 Qba7 Rg1 Ba2 h1R Bb3 Kd6 f8Q+ Re7 Qf7 Rh3 Qfe8 Rh7 Qec6+ Ke7 g7 Rh8 d6+ Kf7 d7 Bh2 Nd2 Ra1 Nf1 Bhf4 Ne1 Rc3 Nd3 Ke7 Ba2 Ra3 Bb3 Qf3 Kg6 Qd5 Ba2 Qb5 Bb3 Nf6 Ba2 Nfe8 Bb3 Rg8 Kh7 Nd6 Ba2 Nf5 Bb3 Rgd8 Ba2 Ne8 Kh8 Kf6 Qb3 Rac8 Qab6 Ree1 Rg1 Ra5 Nd4+ Bd6 Qe4 Be5 Be3 Bd5 Rg5 Rc3 Qa7 Ra8 Bg1 Bb8 Qa3 Bc6 Bg8 Nc7 Ne6 Re2 Bc5 Nd4 Bf8 Bd5 Qb3 R5a2 Qba4 Bc4 Qd5 Rd2 Qdc5 Rdc2 Bg2 Rca3 Qc6 Re2
2R1b1Qn/2q2B2/rkn3BK/R3r1b1/PB1P4/1b1P1rNQ/Qp1R4/r5n1 w - - 0 1 legal: proof: e4 d5 b4 a5 f4 axb4 c3 f5 exf5 d4 cxd4 Be6 Nf3 Bd7 Ng1 Bc8 g4 h5 g5 g6 Nc3 Be6 Ne4 Bd7 Nf2 Be6 fxg6 Bd7 f5 Bc8 Ng4 hxg4 Kf2 Kd7 Ke3 Kc6 Kf4 e5+ Ke4 b5 h4 g3 a4 g2 h5 b3 d3 b2 h6 b1B f6 b4 h7 b3 g7 b2 f7 Nh6 g8Q Ba2 g6 Be7 f8R Bd7 g7 Kb6 Qh5 c5 Bd2 c4 Bb4 c3 Ne2 g1N Ng3 c2 Bh3 c1R Qhf7 Qc7 Bf5 Bg5 Rh5 Nc6 Bg6 Ra6 Rc8 Be8 Qc4 Nf7 Kf5 Re1 Rd1 e4 Rd2 e3 Kg4 e2 Qe6 Bf6 Ra5 Bb3 Kh5 Ra1 Qc4 e1R Qd5 Nd6 Kh6 Re5 Qde6 Bd8 Qh3 Bf6 Qf7 Rf8 g8B Be7 h8Q Bh4 Qc4 Rf3 B8f7 Be7 Qg8 Bg5+ Kh5 Bc2 Qa2 Bb3 Be6 Nf7 Bc4 Nh8 Bcf7 Bf6+ Kh6 Bg5+
B4q2/6N1/q5Q1/4n2B/1PrrPQ2/bNqP1QRp/4rq1n/KbBk1N2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 Ra3 exf4 axb5 a4 c4 Be6 cxd5 Bc8 Rb3 axb3 g4 Kd7 d6 Ke6 d7 Kd5 g6 Ke4 b6 h5 g7 f5 b7 c5 e3 f3 g5 f2+ Ke2 c4 g6 h4 Bb2 f4 Qe1 f3+ Kd1 h3 Kc1 c3 Bc4 f1Q Ba6 c2 Ne2 f2 Bc4 Kf3 Bf7 Nh6 g8B Ng4 g7 Nh2 Ng3 Rh4 Rg1 Nc6 b8Q Qa6 Nf1 Ne5 Bh5+ Rg4 Qd6 Bb7 Qg6 Be4 Bd5 Rc8 g8Q Rc4 Ba8 Bg7 Qd5 Qf8 d8N Bh8 Ne6 Bf6 Ng3 f1Q Ng7 Qf2 Nf1 Bg5 Ba3 Bf4 Kb2 c1Q+ Ka1 b2+ Ka2 Qc3 Qc1 Ke2 Rg3 Bc2 d3 Bh6 Nbd2 b1R Qg2 Rb2+ Ka1 Bb1 Nb3 Bf4 Q2e4 Bg5 Qf4 Rd2+ Qb2 Kd1 Qf3+ Re2 e4 Bc1 Rg2 Rf4 Rg3 Rf6 Qf4 Rd6 Qf3 Qc2 Qd4 Rd8 Qde3 Rdd4 Qef4 Qaf6 Bb2 Qd2 Bc3 Ba3 Bb2 Qa6 Bc1 Qc3+
rq2nk2/1rbnRqR1/bB1PR1Q1/1P6/6BP/p3KbQ1/1Q3B2/2N1n1n1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 Ke2 c5 b4 a5 h4 e5 d4 c4 b6 f3+ Ke3 a4 g6 f2 d6 a3 f6 e4 f7+ Kd7 b5 g3 b7 g2 g7 c3 d5 c2 Ne2 g1N Qd3 Rh5 Bh3+ Rf5 Bg4 Nf6 g8R f1B Rg7 Bg2 Rh2 Be7 f8Q Ne8 Qf6 Bf3 Qb2 Qc7 Bd2 c1Q Rg2 Qd1 Nc1 Qf1 Be1 Kd8 d7 Bd6 Qdb1 Rf7 Re2 Ke7 d8B+ Kf8 Bf2 Nd7 b8Q Ba6 Re1 Qc8 Bb6 Bc7 d6 Qb7 Qd8 Qc8 Qg5 Qb8 Qg6 Re7 Qe5 Qc4 Qg3 Qg8 Qb2 Qf7 Kd4 e3 Ra2 e2 Kd3 Ne5+ Ke3 Rd7 Kd4 Qf6 Qc3 Qf7 Rd2 Bd8 Qb2 Rc7 Rc2 Rca7 Rc7 Rb7 Re7 Bc7 Rd1 e1N Rd3 Qg8 Re3 Nd7 R3e6 Qf7 Ke3 Qd8 Qe4 Qc8 Qg6 Qb8
1qQ3nN/n2RBn1P/q2bPPB1/5nk1/2r3qn/4Np1B/1K4N1/Q3r1Q1 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 fxe5 h5 d4 cxd4 g4 f4 Ra3 Bb7 Rg3 Be4 Rg2 Bf5 gxf5 Ke7 Rg5 Ke8 Rg4 hxg4 Kd2 Ke7 h4 a5 c4 g5 Kc2 d5 e4 a4 c5 d3+ Kb2 f3 e6 Kf6 e5+ Ke7 b6 d4 b5 g3 b7 g4 h5 d2 h6 d3 h7 g2 c6 g3 c7 Nc6 c8Q Na7 Ne2 g1N b8N g2 b6 Nh3 b7 g1Q Nbc3 Qg4 Nf4 Ng5 Ng2 Nf7 Nd7 Qc7 b8Q a3+ Ka1 a2 Kb2 Qd8 Qb6 Qe8 Qg1 a1Q+ Kb3 Qa6 Kb2 Qd8 Qa4 Qc7 Nd1 Qcd6 Nde3 d1N+ Kb1 d2 Qa1 Qc7 Ba3+ Qcd6 Bc5 Rb8+ Kc2 Rb4 Rh6 Rf4 Rg6 Re4 Rg7 Rc4+ Kb3 Nf2 Bb4 Nh3 Kb2 Nf4 Ba3 Ng6 Bc5 Nh4 Bb4 Qa5 Bc5 Qd8 f6+ Ke8 Bb4 Qa6 Bc5 Be7 Nf8 Bd6 e7 d1N+ Kb1 Nc3+ Kb2 Ne2 Ng6 Ng3 Ba3 Ngf5 Bb4 Ngh6 Bc5 Rg8 Nh8 Rf8 Qb8 Kd7 e8B+ Ke6 Qc7 Ng8 Qb7 Ng5 Rd7 Qb8 Bg6 Re8 Bb4 Nf7 Qc8 Bf8 Ne1 Bd6 Bh3 Rc1 N1g2 Re1 Qc7 Rc8 Qd8 Rcc1 Qc8 Rc4 Nd1 Kd5 e6 Ke4 Nde3 Rec1 Ne1 Kf4 N1g2+ Kg5 Ne1 Qa8 N1g2 Re1 Ba3 Bc7 Bf8 Bd6 Be7 Qb8+
2Q3r1/P5r1/2Pnnr2/b2BN3/3Rr2p/1NqP3Q/1rN1rQr1/1kB1KB2 w - - 0 1 illegal: No possible last move, all moves rejected
2Q2nr1/2nN1K2/1Q2Q2P/r3B2P/1N1pBbqP/n4rq1/2nN3R/2qkB3 w - - 0 1 illegal: No proof kernel
bq3N2/3rQ3/2k1BB1P/2q2NPP/1pn1r3/5B1Q/rNq3Qn/1nqR1K2 w - - 0 1 legal: proof: f4 a5 c4 g5 a4 h5 d4 e5 g4 d5 gxh5 g4 b4 Bh6 Ra3 Bg5 fxg5 axb4 Rd3 Nh6 cxd5 Qf6 d6 Qd8 d5 Ng8 Rd4 exd4 h4 Kd7 e4 b5 e5 f5 a5 c5 h6 d3 a6 d2+ Ke2 c4 h5 f4 a7 f3+ Kf2 c3 Bb2 c2 Bg2 c1Q Qb3 d1Q Ne2 Rh7 Nd4 Nc6 Nf5 Bb7 Nd2 Na5 Nc4 Nf6 Bc3 Qc7 Nb2 Nc4 Qa3 Qb3 Rd1 g3+ Kf1 f2 Bf3 Qbc2 Qb3 Re8 a8Q Ng4 Bd4 Qb8 e6+ Kc8 d7+ Kc7 d8N Rd7 Qd3 b3 e7 b4 Bf6 Kb6 Qa2 Ba8 d6 Kc5 Ne6+ Kb5 Na4 b2 Nf8 b1N Nb2 Kb6 Bd5 Kb5 Be6 Kc6 Qc3 Red8 e8B Rc8 Bg6 Re8 Bg8 Re4 Be6 Rf7 d7 Rg7 d8Q Rd7 Kg2 f1R+ Qd2 Qa4 Qe7 Qac2 Qa3 Rf2+ Kg1 g2 Qh3 Rf3 Be8 Ra3 Qe2 Nge3 Kf2 Ra2 Ke1 g1Q+ Qef1 Qgh2 Qfg2 Ng4+ Kf1 Qhd6 B8f7 Qc5 Bd5+ Kb6 Bfe6 Kc7 Bb7 Kb6 Bc8 Kc6 Ba6 Na5 Be2 Nc4 Bf3 Nh2+
Br1r4/R6N/p2K1bPk/2n2Qr1/2bb3B/QBrP3r/Q3N1P1/2b2Nq1 w - - 0 1 legal: proof: h4 e5 f4 d5 fxe5 b5 b4 g5 a4 Nd7 axb5 Ndf6 c4 dxc4 Ra6 Ne4 Rf6 Qd5 Rf4 gxf4 Nc3 Ng5 hxg5 Qd6 Nb1 Qd8 Kf2 h5 Kf3 f5 e4 Kf7 d3 Kg6 b6 c5 b5 a6 e6 c3 e5 c4 b7 c2 b8N c3 e7 h4 e6 h3 b6 h2 b7 Nf6 Qd2 Qd4 Ne2 Qg1 Nd7 Ne4 b8Q Nc5 Nf6 Bg7 Qd6 Rb8 Nh7 Bf6 e8B+ Kg7 e7 Be6 g6 Kh6 Bf7 Rhd8 e8Q Bc4 Bb2 c1B Qed7 c2 Bd4 Ba3 Bf2 c1B Qa2 Bab2 Bh4 Bbd4 Bd5 Rb3 Ba8 Rc3 Ng3 Rb8 Be2 Rd8 Bd1 Rb8 Nf1 Rd8 Ke2 f3+ Ke1 f2+ Ke2 f4 Kf3 Rb8 Bb3 Rd8 Kg4 f3 Kf5 Rb8 Nbd2 Rd8 Ng3 f1R Ne2 f2 Qb5 Rd1 Nf1 Rd2 Qba5 Rb2 Qd5 Rb1 Q5a3 Rb2 Nd2 f1R+ Qf3 Rf2 Nf1 Bf4 Qh3 Rf3 Qg4 Rg3 Qf3 Bc1 Qd5 Nd7 Ke6 Rg5 Kd6 Rb1 Bc2 Rbb8 Bb3 Rg8 Qf5 Nc5 Ne3 Qe1 Rf1 h1R Rf3 Rgc8 Nf1 Rh3 Re3 Qf2 Re7 Qg1 Ra7 Rd8+
1KB1nQQ1/2n3N1/1n1p2kN/PbP2bB1/Pq1b2p1/1R4rQ/8/1qr2B1N w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 f4 cxd4 b4 g6 bxa5 g5 fxg5 h5 g4 Ra7 a3 Rh6 g6 Ra8 g5 Rh8 a4 Rh7 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 b5 Kg3 e5 c4 e4 Kf4 e3 Ke5 d3 h4 d2 h5 b4 c5 e2 g7 Kf7 f6 e1N g6+ Ke8 h6 b3 h7 b2 f7+ Ke7 Qf3 d1B Na3 b1Q Nh3 Na6 Bg5+ Nf6 g8B Be2 g7 Nc7 Nb5 Rb8 Nf2 Ng2 Nd6 Ne3 Qh3 Ned5 Ne8 Bb5 Rh2 Nb6 Nh1 Rb7 Rb2 d6+ Kd4 Ke6 Rb3 Be7 f8Q+ Kf5 Be6+ Kg6 g8N Bcd7 Ng7 Qb8 Nh6 Nfe8 Qf4 Rf8 h8Q Bc8 Qf2 Rf3 Qg8 Rg3 Qff8 Bcd7 Bec4 Bf5 Be6 Bc4 Bc8 Bcd3 Kc3 Bf6+ Kb4 Bd4 Qc4 Nca8 Kb5 Rf7 Kc6 Nac7 Qd5 Re7 Qc4 Re1 Qcg8 Rc1 Bb7 Qd8 Bc8 Bb5+ Kb7 Qe7 Ka7 Qe1 Kb8 Qb4
1NQQ2N1/K5BR/Pqb3pb/q2P2nB/br2N3/3qB3/r1P1p2Q/5k1n w - - 0 1 legal: proof: e4 d5 a4 a5 b4 axb4 g4 f5 exf5 h5 gxh5 c5 Bb5+ Kf7 Bd7 d4 Ra3 d3 Rxd3 c4 Rb3 cxb3 Ke2 Kf6 Ke3 Ke5 h4 b5 a5 b2 h6 g6 h5 b3 f6 b4 f7 Na6 h7 Nh6 Nh3 Nc5 Nc3 b1Q Bg4 b2 Ne4 b3 Nf4 Ne6 Nd5 Bd7 Ndf6 Qa2 Ng8 b1B d4+ Kd5 f4 b2 f5 Bc6 f6 Nf5+ Kd3 Ng3 h6 Ng5 Be3 e5 Bh5 Rb8 Qd2 Rb4 Qh2 Qa4 Kc3 Ba2 a6 b1Q Kd3 Qaa5 Kc3 Bg7 f8B Bb3 f7 Bba4 Kd3 Ke6 Kc3 Kf5 Kd3 Qd7 d5 Qd1+ Kc3 Rb2+ Kc4 Ra2 Ngf6 Rg8 h8Q Qf3 h7 Bh6 Bg7 Rb8 f8N Rb4+ Kd3 Qb7 N8d7 Qbb5+ Kc3 Qfe2 Qd8 Qf3 h8Q Qd1 Bf2 Kf4 Nb8 Qdf1 Ng8 Qfe2 Nef6 e4 Qc8 e3 Ne4 Qg4 Qd8 e2 Be3+ Kf3 Qc8 Rb3+ Kd4 Rb4+ Ke5 Qd3 Kd6 Qab5 Ne7 Qa5 Qhd8 Qab5 Ng8 Qa5 Qh4 Kg2 Rh3 Qab5 Kc7 Nh1 Qg3+ Kf1 Qgd6 Qh4 Qh2 Qe1 Rh4 Qbc4 Rh3 Bab5 Kb6 Ba4+ Ka7 Qb5 Rf3+ Qf2 Rf7 Qf4 Rb7 Qc7 Bf6 Qca5 Rh7 Nh3 Bfd4 Ng5 Bg7 Qbb6+
2nRQBNQ/2b1R2P/4qRQb/2K3q1/Pn2r2q/2pb2Nk/P3r2p/2N5 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 a4 b3 Nc6 bxa4 Nb8 h4 f5 exf5 h5 g4 hxg4 Bh3 gxh3 Ke2 Kd7 Ke3 e5 f4 b5 d4 g5 f6 c5 f5 c4 h5 g4 d6 h2 h6 c3 f7 g3 f6 Ke6 d5+ Kf5 h7 e4 Kd4 b4 d7 e3 d6 e2 Bh6 Kg4 Nd2 b3 Qb1 e1Q Ne4 g2 Kc5 b2 Ne2 Qh4 N4g3 Ne7 Rf1 Nbc6 Qg6+ Kh3 Rae1 b1Q Nc1 g1B+ Re3 Bg7 f8N Nb4 f7 Ba6 Rf6 Qe8 d8R Bd3 Nd7 Nc8 f8Q Qe6 Qe7 Re8 Qf8 Bf2 Qh8 Be1 Re5 Qbb3 Re4 Qg8 Re7 Qbe6 Rf1 Bd2 Nf6 Bf4 d7 Bc7 Rf4 Bf8 Rf5 Qg7 Ng8 Ra6 Rf6 Rd6 Bf4 Rd4 Bd6 Qgh6 Ref7 Bg7 Bf8 Re4 Re7 Qd2 Rf2 Bh6 Rf6 Nb6 Rc8 Qdf4 d8Q Qfg4 Qd7 Re2 Rd8 Nc8 Qb5 Qgg5+ Rd5 Rd8 Qbe8 Rd7 Rdf5 Rd4 Rd5 Qd2 Rdd7 Rde4 Rd8 Qdg5+
QK4Nk/q3n1bP/4P3/2Qb2qB/1r1rRR1q/Nn6/n1P1Q1pp/3R2N1 w - - 0 1 illegal: No possible last move
2QqN2N/2b1qP2/1n1B2p1/k1r4P/1n2R1B1/1K2P1b1/p1r1q1QN/1Q2r2B w - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 fxe5 h5 d4 cxd4 g4 f4 Ra3 Bb7 Rg3 Be4 Rg2 Bf5 gxf5 Ke7 Rg5 Ke8 Rg4 hxg4 Kd2 d5 c4 Kd7 Kc2 Kc7 h4 Kb6 h5 a5 f6 g6 e3 d3+ Kb3 g3 e6 d4 e7 f3 e8N d2 Qc2 d1R Nh3 d3 Ba3 g2 Ng5 g1B Nd2 f2 Rh4 Ne7 Ndf3 d2 Nf7 Qd6 Bg2 f1Q Bh1 Nd7 Re4 Qe2 Nh2 Bf2 Qb2 Rh7 Nh8 Bg3 Qc2 Nd5 c5+ Kb7 c6+ Kb6 c7 Rc8 Qb1 Re1 Qa2 Re7 f7 Re5 Qb2 d1Q+ Qc2 Ka7 b6+ Ka6 b7 N7b6 b8Q Qe7 Qb7+ Kb5 Qa8 Qd4 Qb1 Bh6 Qb7 Bhf4 Qa8 Nc3 Qb7 Rc5 Qc6+ Ka6 Qd5 Na2 b5+ Ka7 Qg5 Qdd8 Bb4 Rc2 Bd6 Nb4 Qg4 Kb7 Qf3 Be5 Qg2 a4+ Ka3 Na8 b6 Ka6 b7 Ka5 b8Q Nb6 Qb7 Rb8 c8B Ra8 Bf5 Rac8 Bg4 R8c4 Bc5 Bc7 Bd6 Rc6 Qc8 R6c5 Qb2 N4d5 Ka2 a3 Kb3 a2 Qb1 Nb4
qK5b/rR6/1B1NQ2Q/1Qp1NpbB/r2n3P/3B1nPP/b7/b2nN2k w - - 0 1 illegal: No possible last move
2R4N/3KNbk1/2pR3q/pn1Q3Q/1RP2b2/1n1Qr2r/rP1b1BP1/4Nr2 w - - 0 1 legal: proof: d4 b5 h4 f5 a4 g5 axb5 gxh4 e4 e5 dxe5 d5 exf5 d4 c3 d3 Be2 Bh6 Bf3 Bg7 Bd5 Bh6 Bb3 Bf8 Bc2 dxc2 Ke2 Kf7 Ke3 a5 Kf4 h5 b6 h3 f6 h2 b7 c6 e6+ Kg6 Ke5 h4 f4 h3 f7 Qg5+ f5+ Kh6 c4 Na6 b8R Ne7 Kd6 Rh7 f6 Ng8+ e7 Ra7 Nf3 Nc7 Qd3 Be6 Rd1 h1R Ra4 h2 Nc3 Rf1 Ne1 h1R Be3 c1B Rc8 Bd2 Nd5 Bg7 f8N Bf7 e8Q Ne7 Bc5 Nf5+ Kd7 Nd4 Ne7 Nb3 Nfg6 Qh4 Nh8 Nb5+ Kd8 Rb7 Bf2 Rh3 Rb4 Re3 Qed7 Bf8 Q7d5 Rb6 Neg6 Bd6 Kd7 Bf4 Ne7 Rb8 Rc7 Rg8 Rc8 Qh2 Nc2 Rgg3 Ne1 Bg8 f7 Kg7 Qh5 Rgf3 Qhd5 Rhh3 Qh5 Qg3 Qdd5 Qg5 Qd3 Rfg3 Qd5 Qh6 f8Q+ Kh7 Qf6 Bf7 Qff5+ Kg7 Qb1 Bc1 Rd4 Bd2 Qd3 Rgf3 Qd5f5 Rfg3 Rd6 Rgf3 Qe6 Rfg3 Qed5 Rgf3 Nc2 Ra1 Ne1 Ra2 Bg3 Rf1 Bh4 Re6 Bf2 Ree3
2b5/1r1q3N/1QNq2R1/P1RNn3/1K2k3/1pp1PqQq/2r1R1Pr/1Qb3B1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 g5 h4 e6 hxg5 Nd7 b4 axb4 e5 Ndf6 Bd3 Ng4 Bf5 Ne3 fxe3 exf5 d4 Kd7 Kd2 h5 a4 c5 g6 b5 a5 h4 e6+ Kd6 e7 f4 e8Q f5 g7 b3 Kc3 c4 Qd3 b4+ Kb2 f3 Bd2 f2 Ra2 f1Q Nc3 h3 Qg6+ Nf6 g8R h2 Be1 f4 Bf2 f3 Nh3 Qd7 Bg1 f2 Qb1 Qd3 Ng5 f1Q Nh7 Qf3 Qg5 Ng4 Rg6+ Qf6 Qf4+ Ne5 Qg3 Qd1 Qe1 Qf3 Qg3 Kc7 d6+ Kc6 d5+ Kc5 Kc1 b2+ Kc2 Ra7 Kd2 Rb7 Kc2 b3+ Kd2 Qdf5 d7 Qd6 d8N Qfd7 Nc6 Bg7 Bf2 Bf6 Rc1 h1Q Bg1 Qhh3 Rc2 Q6c7 d6 Qcd8 Qbe1 b1R Nd5 Rb2 Kc3 Qg7 d7 Qhh5 Nb6 Be7 Ng5 Bf8 Na4+ Kd5 Qb1 Ba3 Rc1 Qc7 d8Q+ Qd6 Qb6 Qgd7 Rc2 Rh6 Nh7 Qhf5 Re2 Rh2 Rc2 Qfe6 Re2 Rd2 Rc2 Qh3 Rc1 Q6e6 Rc2 Bc1 Kb4 Ke4 Nc3+ Kd3 Nd5 Ke4 Rc3+ Rc2 Rd3 Kf5 Rd4 c3 Rc4 Qed6+ Rc5 Ke4
Q1n2q2/5B1k/b4pNB/K1P1P1q1/2PqQ1pN/3b4/3qQ3/RNn1rBb1 w - - 0 1 legal: proof: e4 h5 g4 hxg4 b4 b5 a4 e5 axb5 c5 d4 a5 dxc5 Bd6 f4 Nf6 f5 Bf8 Ra3 Ra6 Rd3 Rc6 Rd4 exd4 e5 Re6 fxe6 Ng8 Kd2 g5 h4 d5 c3 f6 e7 Kf7 e8B+ Kg7 b6 g3 b7 a4 h5 d3 h6+ Kh7 Qh5 a3 Qh4 g2 Qc4 a2 Qh4 a1Q Qf4 d4 Nh3 g1Q Bh5 Na6 b8Q Ne7 Qb5 g4 Bf7 Qe3+ Kd1 d2 Kc2 d3+ Kb3 Qaa5 Ng1 d1B+ Kc4 d2 Qe4+ Bf5 Nf3 Qg5 Nh4 Be2+ Kb3 Qab6 Ka4 Nc8 Qbd3 d1Q+ Qc2 Q1d2 b5 Qbd6 b6 Nb4 b7 Na2 b8Q Ba6 c4 Q6d4 Qba8 Bg7 Qd1 Qg8 Qde2 Qf8 Ba3 Nc1 Bb4 Qe7 Ka5 Rd8 Rg1 Qf8 Bc3 Kh8 h7 Bh6 Rh1 Kg7 h8N Kh7 N8g6 Rd7 Q4g2 Bd3 Qge4 Rb7 Na3 Rb1 Rg1 Na2 Rh1 Re1 Nb1 Nc1 Rg1 Qh5 Rh1 Be3 Bb4 Qd1 Bd2 Bg1 Bh6 Qg5 Rh3 Bc2 Ra3 Bd3 Ra1 Qdd2+
QN2b3/R1KQ3n/rQP1p3/1p3PRb/B2q2P1/q1b2B2/kBn1qRb1/8 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 Nc6 b4 axb4 f6 Nb8 h3 Nh6 f5 Nf7 Nc3 Nh6 Nce2 Ng8 Nf4 gxf4 g4 b5 g5 Ra3 Bd2 Rg3 Bc1 Rg4 hxg4 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 d5 Kf3 Kd7 a4 Kc6 c4 h5 f7 b3 g6 e6 g7 h4 a5 h3 a6 d4 Ke4 f3 Ke5 f2 a7 h2 a8R d3 Nf3 b2 R1a7 b1Q Ra2 d2 R8a7 Qb4 Be2 f1B Bb2 Nf6 g8Q Bg7 f8Q Bg2 Qe7 Rh3 Qg1 Qa3 Bd1 Bd7 Ba4 d1Q Qgf8 Qb6 Qef7 Na6 Qa8+ Qb7 Qe7 Nb4 Qe3 Nc2 Nd4+ Kc7 c6 Kb6 c7 Qbf3 c8B Be8 Qf7 Kc5 Bb7 Kb4 Kd6 Qfe2 c5 Nh7 Qd7 Bh5 Kc7 Kc4 Nc6 Bc3 Nb8 Qd4 Bf3 Rg3 Rf1 h1B Rf2 Kb4 Qee4 Rh3 Qeb7 Rg3 Qb6 Rh3 Bb7 Bc6 Ra1 Bhg2 Rh1 Rd3 Rh2 Rd1 Rh4 Ra1 Rh2 Bf7 Rh6 Bh5 Rg6 Kc4 Rg5 Kb4 Qe7 Bd7 Bf3 Bde8 c6+ Kc4 Qd7 Ra2 Bb3+ Kb4 Bc4 Ra1 Bd3 Kb3 Bde4 Ka2 Bd5+ Kb1 Bb3 Ra2 Ba4 Ra1 Qe7 Ka2 Qd7 Qac5 Kc8 Kb1 Bb3 Ra6 Kc7 Qa3 Ba4 Ka2
NQ2Q1q1/5KbP/nn4Pp/P2pr1Q1/2Rn3q/B1b1RN1b/5k2/1RN1b3 w - - 0 1 illegal: No proof kernel
rkbb4/1B3QRb/PRn1p3/3qN1BP/3Q3Q/2bn1p2/2P3B1/2nn1R1K w - - 0 1 legal: proof: d4 b5 e4 c5 g4 h5 f4 a5 g5 g6 b4 d5 dxc5 axb4 Nd2 d4 Nc4 Ra6 Ne3 Rd6 f5 Nd7 fxg6 Rd5 exd5 Nb8 Ng4 hxg4 Kf2 Kd7 Kg2 Kc7 a4 f5 h4 g3 h5 b3 a5 d3 a6 f4 g7 b4 c6 d2 g6 b2 Bb5 b1N Ra3 b3 Bc4 b2 Rc3 Nf6 g8R Ne4 g7 Nc5 Be2 Nd3 Rb3 Nc3 Bf1 b1B Rb6 Ne2 Nf3 Ba2 Ne5 e6 Rg1 f3+ Kh1 Bb4 Bg2 Bc3 Rf1 Bc4 Qe1 d1N Bg5 Nec1 Qe4 N3b2 Qd4 Bd3 Qh4 Bh7 Qd4 Kd6 c7+ Nc6 Qh4 Nbd3 Qd4 Bb7 c8B Kc7 d6+ Kb8 d7 Ne7 Rf8 Nc6 Rf7 Rf8 g8Q Re8 Rb4 Qa5 d8Q Qd5 Rg7 Rf8 Qf7 Rg8 Bh3 g2+ Kh2 g1B+ Kh1 Bf2 Rb6 Bh4 Bg2 Rf8 Bf4 Bf6 Bg5 Rg8 Qde7 Rh8 Qeb4 Bd8 Qh4 Rg8 Qbd4 Be7 Rg6 Kc7 Bd7 Ra8 Rg8 Bd8 Rg7 Ne7 Bc6 Bc8 Bb7 Kb8 Bf4 Nc6 Be3 Qc4 Bg5 Qd5
B1nBk1rB/3p3Q/4p3/RqPN3P/Q2Npn2/K3q1N1/2PQr3/b2b1r2 w - - 0 1 legal: proof: e4 c5 d4 f5 dxc5 fxe4 a4 b5 axb5 Na6 f4 Nb8 b4 h5 g4 g6 f5 Bg7 Ra3 Bh6 Rg3 Bg7 fxg6 Bh6 g5 Bf8 Rg4 hxg4 Kd2 a5 Kc3 e6 Kb2 a4 h4 g3 h5 g2 b6 Ra7 b7 Rh6 g7 Qa5 g6 Ke7 b5 Rh8 b6 Kd8 Bb5 Nh6 g8Q Nf5 g7 Nc6 b8B Bb7 Qh7 Ne3 g8Q Ke8 Be5 Ne7 Qd2 Ba6 b7 Nc8 b8N Nd5 Bc6 Be2 Ka3 Bd1 Ba8 Nf4 Ne2 g1Q Ng3 Qe3+ Nc3 Qb5 Nc6 Ra6 Nd4 Rd6 Qgg7 Rg8 Bf6 Rd5 Bd8 Rd6 Qe5 Bg7 Bb2 Rd5 Qc7 Bh8 Qa7 Bf6 Ka2 a3 Qa4 Rdg5 Nd5 Bh8 Ngf5 Rg2 Ng3 Re2 Bc3 Qa5 Kb3 a2 Rf1 a1R Rf3 Rc1 Ka3 Qg1 Bb2 Qb5 Rb3 Qe3 Bc3 Qb6 Rb5 Bf6 Ra5 Qb5 Nb3 Bh4 Bg7 Bf6 Bh8 Ba1 Be5 Re1 Nc3 Be2 Nd5 Rf1 Bh8 Rce1 Ra7 Bd1 Ra5 Qf2 Nd4 Re2 Qc4 Qg1 Qa4 Qe3+
4K2N/2np2Rp/R1bbN2Q/N2r2PQ/b2R2r1/1Qq1P1kP/pq6/1B4n1 w - - 0 1 legal: proof: b4 e5 a4 b5 axb5 c5 bxc5 e4 Bb2 e3 dxe3 Ne7 Bc1 Ng8 Nd2 f5 Nb1 f4 Nd2 g5 Nb1 f3 Kd2 fxe2 f4 Qb6 f5 Qg6 Bb2 Qf6 Be5 Qd8 Bf4 gxf4 Kd3 Ke7 Kc4 Kf6 Kd5 Kg5 c4 Kh4 g4 e1Q f6 a5 h3 a4 g5 a3 c6 f3 c5 f2 b6 Qc3 f7 Qe8 b7 Bg7 Kd6 Qb3 f8Q Ra4 c7 Qc4 c6 Qb5 Nf3+ Kg3 Nd4 Qd3 Nd2 Nf6 Qh5 Qc2 Ne6 Nd5 Nb3 Rg4 Bd3 f1B Na5 Qb2 Bb1 Na6 b8Q Bb5 Rd1 Bb7 c8N Nc3 c7 Ne2 Ne7 B7c6 c8R Nc7 Rd4 Ba4 Qb3 Ng1 Ng6 Qd8 Ra8 Qc8 Ke7 Be5 Qfh6 Rf8 Nh8 Rf5 Rb8 Bf4 Ra8 Rd5 Kf7 Qa6 Rg8 Bd6 Rg6 Qc4 Rg7 Nb5 Ke8 Qb4 Ra2 Q2c3 Rf2 a2 Rf6 Nc7+ Kf7 Qa3 Nc5 Bcb5 Re6 Bf4 Ra6 Bc6 Ne6 Qab2 Kf8 Bd6+ Kf7 Nb5 Ke8 Nc7+
n2n1q1B/B2rQr2/b4R1K/k2rr2P/BNn2R1Q/5p2/1P3ppP/2Q3R1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 h6 g3 Ba3 Nc3 Be7 Ne4 Bh4 Ng5 hxg5 gxh4 g4 Kf2 Kd7 e4 a5 d4 f5 d6 c5 h5 g5 e5 a4 d5 g3+ Kf3 a3 b6 c4 b7 a2 Bd2 c3 Be3 g2 Qd4 g4+ Ke2 c2 Qd1 c1R Bd4 f3+ Ke3 g3 Kf4 f2 Bb5+ Nc6 b8B Ra5 Nf3 g1R Ba4 g2 Ne1 Nf6 Kg5 f4 Nc2 f3 Bba7 Ba6 Nb4 Rf8 Kh6 Re1 Rg1 Rf7 e6+ Kc8 d7+ Kc7 e7 Re5 Qc2 Rd1 Qc1 Ne8 d6+ Kb7 Bc3 Nc7 e8Q Na8 Qe7 Rad5 Qh4 Qe7 d8R R1d4 Rg8 Nd8 Rg6 Qe8 Rf6 Qf8+ Kg6 Rd1 d7 R1d2 Re1 Kc7 Re4 R2d3 Rb1 a1N Ref4 Nc2 Ra1 Ne3 Bcd4+ Nc6 d8Q+ Kb7 Qd6 Nc4 Qe7+ Rd7 Bc3 Rdd5 Bcd4 Qc8 Kh6 Nd8 Qc2 Qb8 Rg1 Qd6 Bc3 Qb8 Qc1 Qd6 Bb8 Kb6 Ba7+ Ka5 Re6 Ref5 Bh8 Rfe5 Ref6 Qc5 Qe8 Qe7 Qf8 Qe8 Qe7 Qf8+
1K1Q1n2/Pnp2kq1/3r1B1n/nQb1Pp2/2pN1PB1/5qB1/5b2/R3NQ1N w - - 0 1 legal: proof: c4 d5 d4 e5 a4 Qd7 b4 Qd8 Ra2 a6 Rd2 dxc4 d5 a5 Rd4 exd4 bxa5 Bf5 Bd2 Be6 Bc1 Bc8 g4 f5 h3 Ra6 g5 Rf6 gxf6 b5 Na3 Bb7 Nb1 Bc8 Nd2 g5 Bb2 g4 Ngf3 g3 Bc1 Be6 Ng1 Bf7 Nb1 Bh5 Nf3 Bc5 Ng1 Bg4 hxg4 Bf8 Kd2 h5 e4 h4 d6 d3 Kc3 b4+ Kd4 b3 Kc5 d2 a6 b2 g5 g2 e5 h3 a5 h2 g6 Nc6 a7 Be7 a8Q Rh7 f7+ Kf8 a6 Na5 a7 Nh6 Be2 Bf6 d7 Rg7 Nh3 g1B Qb8 Nb7+ Kc6 Rh7 g7+ Ke7 g8Q Rg7 f8N Rg6 Na3 b1N Ne6 Bh4 Nc2 Qf8 Ne1 Qg7 Qgd8+ Kf7 Bg4 Be7 f4 Bec5 Nf2 Rf6 Qf3 d1N Be3 Nb2 Qg2 Nd2 Qf1 Na4 Bd4 Nd6 Qb5 Nb3 Bc3 Nb6 Nd4 Ndc8+ Kb7 Rd6 Kb8 Na5 Ne4 Be3 Ng3 Bf2 Rg1 h1Q Bb4 Qf3 Nh1 Rg6 Bd2 Nd6 Be3 Bh4 Bf2 Ndb7 Bg3 Rf6 Qc8 Rc6 d8B Rd6 Bf6 Nd7+ Ka8 Rb6 Qd8 Nf8 Kb8 Re6 Rg2 Rd6 Ra2 Ba3 Ra1 Bc5 Bh2 Bf2 Bg3 Ra6 Ne2 Rc6 Nd4 Rd6
1QN1nQR1/B1b2p1P/3b1Q1n/K1rqnN2/N4P2/7B/4Pqbq/r1B1k2r w - - 0 1 illegal: No possible last move
2kr2N1/2bbKQR1/p4r2/BR1QrP1q/PrP2b1B/5BR1/2r1q3/2n1Q1n1 w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 hxg4 Nd2 f4 Ne4 Rh6 Ng3 fxg3 Bd2 Rh5 Bc1 Rh8 Kd2 b5 Kd3 d5 Kd4 Kd7 a4 g5 h4 a6 e4 b4 c4 g2 f4 g3 f5 b3 h5 g4 h6 b2 h7 b1R Ba3 Nh6 Ra2 Rb4 Re2 Nf7 Nf3 g1R Re3 g2 Nh4 g3 Be2 Qe8 Bf3 Bd6 Ng6 Bc7 Ne7 Re1 Ng8 Ng5 Rg1 Qh5 e6+ Kd8 c6 Nd7 e5 Nh3 Bc1 Nc5 Bd2 Nd3 Bc3 Nc1 Kc5 Bd7 e7+ Kc8 e6 d4 Kd5 Bf4 c7 d3 Re5 d2 Kd6 Re4 Qe1 d1R+ Qd2 Rf1 Qd5 Rf2 Be1 Rc2 Bf2 Bg5 e8Q+ Bd8 e7 Be6 Qf8 Rab8 e8Q R8b6+ Qec6 Ree2 Qf7 Bg5 Qd1 Bf4 Ke7 Re1 Ra5 Re5 Qcd5 Rc6 Rb5 Rd6 Rh1 g1Q Qe1 g2 Bh4 Qe3 Rh2 g1B Rg2 Rc6 Rg3 Qe2 Rg7 Bb6 Rg3 Kb7 c8R Ng1 Rc7+ Kb8 Nh6 Rg8 h8B Rd8 Ng8 Rcd6 Ra7 Kc8 Bg7 Bc7 Rab7 Re3 Bd4 Re5 Bb6 Rf8 Ba5 Rdd8 Qg7 Rf6 Qf7 Rbb2 Ra7 Rb4 Qe8 Rh6 Kf8 Bb6 Rag7 Bc7 Ke7 Rf6 Qf7 Bd7+
2K1b3/2nP3Q/r2b1BQ1/3rq1BB/R1nQ1n1p/PNq3kP/b1Nr1Nn1/8 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 g5 a3 Bd7 f6 Ra4 f5 Be6 Ra2 Ra5 Rc2 Ra8 Rc4 Bc8 Rf4 gxf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 e5 d4 b5 h3 c5 g5 f3 g6 f2 f7 c4 f6 h4 g7 c3 Bb2 c2 Ba1 c1Q Bc3 b3 Nf3 b4 Nh2 b2 Rg1 b3 Be2 f1R Ng4 Qe8 Nd2 b1N Nf2 b2 Bh5 Bd7 Nb3 Na6 Rg4 Ne7 g8Q Nc7 Qh7 Ng6 Rf4 Bc6 Kf5 e4 Qd3 Be7 f8Q e3 f7 e2 Qfh6 e1N f8N Nd2 Ne6 b1B Rg4 Nf4 Q6g6 Ba2 Bb2 Kd7 d6 Qc3 d5 Neg2 Ned4 Rd1 Nc2 Nc4 Qd4 Rd2 Ba1 Ra6 Bb2 Kd8 d7 Bd6 Ba1 Qe7 Bb2 Qg7 Ba1 Ke7 d8B+ Kd7 Bg5 Rb8 Bb2 Rb5 Ba1 Kc8 Bb2 Be8 Ba1 Kd7 Bb2 Bc5 d6 Kc6 Ba1 Qe7 Bb2 Qee3 d7+ Bd6+ Kf6 Rd5 Ba1 Be5+ Ke7+ Bd6+ Kd8 Qe5 Qf5 Bc5 Bb2 Kd6 Kc8 Bb4 Qfd3 Ke6 Q3e4 Bd6 Qeg6+ Qf6 Qde4+ Ne5 Ne3 Ne2 Nc2 Qg3 Bd4 Qc3 Qgg7 Qf5 Bc5 Qf4 Qd3 Qh2 Rb4 Nc4 Qgg6+ Ke5 Ra4 Qg3 Bf6+ Kf4 Ba7 Qg5 Be3+ Kg3 Qde4 Rc6 Qd4 Ra6 Qge4 Qf5 Beg5 Qe5 Qeg6 Nef4
1R5q/2B1n1p1/5QP1/2Qb1qPN/BKn3n1/2r1nPrN/k2b1b2/N3Q1rB w - - 0 1 illegal: No proof kernel
k3BKNn/1qrq1PRQ/3P4/1Nr2bRb/2p4Q/2P3nR/Nn3b1Q/1qb5 w - - 0 1 legal: proof: e4 b5 h4 f5 a4 fxe4 axb5 g5 hxg5 d6 b3 d5 Ba3 d4 Bd6 Nf6 Bf4 Ng8 Be3 dxe3 Ke2 Kd7 f4 a5 g4 c5 d4 Kc7 f5 Kb7 f6 e5 f7 h5 b6 a4 b4 h4 g6 c4 g5 a3 d5 h3 d6 h2 b5 a2 g7 Ne7 g8N Nbc6 c3 Bf5 g6 Ra7 g7 Ka8 Qd3 Ng6 Na3 Qd7 Bg2 Rh5 Re1 a1Q b7+ Kb8 Qb1 Nce7 Rd1 Nh8 Rd5 Rg5 Qe1 Qb1 Qh4 Ra6 Bf3 Rc6 Rc5 Ka7 b8R Rc7 Rd8 Qb4 b6+ Kb7 Nb5 Rh5 Kf1 e2+ Kg2 e1Q Ne2 Qeb1 Kg3 Q4b3 Rd5 e3 Nc1 e2 Na2 e4 Kf4 e1N Ke5 e3 Kf6 Nd3 Bd1 Q3b2 Ba4 e2 Rg1 e1B Rg2 Bh7 Rdg5 h1B R2g3 B7e4 Rh3 Bhf3 Re8 Bf2 Ra8 Kc6 b7 Nf5 b8Q Ng3 Qe8 Kb7 Qe5 Bf5 Rd8 Nh1 Qh2 Ng3 Re8 Be2 Re4 Qb4 Reg4 Nb2 Rg6 Qf1 Nd4 Be4 Ne7 Rhc5 g8Q Bh6 Rg7 Qc6 Qh7 Bf5 Ng8 Qb1 Bb5 Bf4 R4g5 Bc1 Ba4 Qe8 Bd7 Qb6 Nb5 Ka8 Bc6+ Qb7 Bd7 Qec8 Be8 Bd7 Ke7 Bf5+ Kf8 Qd7 R5g6 Bd1 Rg5 Bh5
1N1Kq3/P1PRQNp1/n1bnr2Q/B1N2qbR/6Rq/4nn2/1k1rq1P1/5Q2 w - - 0 1 illegal: No possible last move, all moves rejected
r2Bbb1B/1Qn1qq2/pn1Np2P/R3P3/3b2Br/K1n5/P1QRQ1R1/5r1k w - - 0 2 legal: proof: c4 c5 b4 f5 bxc5 d5 cxd5 h5 g4 hxg4 Nc3 f4 Ne4 Qc7 Ng3 fxg3 Bb2 Qb6 Bc1 Qd8 h4 Kf7 d4 Kg6 Kd2 Kh5 Kc2 g5 Kb3 b5 f4 a6 e4 g2 c6 b4 c7 e6 f5 Be7 d6 Qe8 d7 Qf7 d8B Bc5 f6 Bf8 d5 Bd7 c8Q Be8 d6 Nd7 Qdc2 g3 Ne2 Kg4 h5 Kf3 Nc3 g1R Bh3 g2 Qb7 g4 Nb5 g3 Bb2 Nb6 d7 Ne7 Nd6 Rf1 Rg1 Rh6 Rd1 Ned5 Rd2 Nc7 Bc3 Qe7 f7 Rh8 Kb2 b3 Ka3 b2 Bf5 Rh6 Bh8 b1Q Bh3 Qe1 Rd5 Qf2 e5 Rh7 Rh1 g1B Rh2 g2 Bg4+ Kg3 Ra5 Qf4 Qe2 Bd4 Qc2 g1N h6 Ne2 Rf2 Nc3 Rd2 Qf5 Rf2 Rg7 Rg2+ Kf4 Qe2 Rg5 Qc2 Rh5 Qe2 Rh4 Qc2 Bg7 f8Q Qff6 Qf7 Bf8 Qh5 Qef7 Be7 Q6g7 d8R Qg5 Rd7 Qgf6 Bd8 Q6e7 Qhg6 Ke3 Qgd3+ Kf4 Qc4 Ke3 Q4e2+ Kf4 Rh2 Kg3 Rf2 Ne4 Rh2 Ba1 Rf2 Nc5 Nc8 Nca4+ Kb3 Bb2 Rd2 Bd4 Nd6 Nc3 Ka3 Be3 Rf6 Bf2 Rf3+ Kg2 Rg3+ Kh2 Rg2+ Kh1 Qb1 Bg1 Qc2 Bd4
1qb3B1/1pRp4/N5Q1/4B1q1/PN1nr1rn/1PN1K2b/3PQ1rq/kbB4Q w - - 1 2 illegal: No proof kernel
6Bk/1KP1np2/BQ1R1r2/1n3P1n/rbnb3Q/P1BpN3/1NN2n2/1b3q1Q w - - 0 1 legal: proof: g4 c5 d4 h5 gxh5 a5 dxc5 e5 b4 axb4 a3 Qc7 Ra2 Qd6 Rb2 Qg6 Rb3 Qg5 Rd3 Qd8 Rd4 exd4 Kd2 d5 Kd3 g5 h4 b5 e4 g4 c4 b3 f4 b2 e5 g3 c6 b4 e6 b3 e7 g2 c7 Bh6 c5 Be6 c8B Bd7 c6 Bf8 h6 Bg4 c7 Bf3 h7 Nd7 h5 Rb8 h6 Ra8 Ba6 Ndf6 Nc3 b1N Na4 b2 Ne2 g1B Bd2 Bf2 Qb3 Nc3 Qb6 b1N Nb2 Nb5 Bc3 Nh5 Rg1 Qc8 Rg6 Nd2 Rd6 Nc4 Bg2 Bg4 Be4 Bf3 Bg6 Qh3 f5 Bg1 Nc1 Qg2 Na2 Bf2 Nb4 Qf1+ Kc2 d3+ Kb3 d2 Ka4 d1N Nc2 d4 Kb4 Be3 Kc5 Be2 Kc6 Nf2 Kb7 Bd3 Rd7 Ngf6 Rd6 Rg8 h8Q Nd5 Bh7 Rg6 Bg8 Rf6 h7 Be4 Nb4 Bb1 Nc2 d3 Qc5 Rh6 Qb6 Bd4 Qf6 Rg6 Qh4 Rf6 h8Q Bh6 Be1 Bd2 Qh1 Bb4 Bc3 Nhf4 Q8h4 Nh5 Rc6 Kd7 e8N Ke7 Rd6 Kf8 Nd1 Ne7 Nb2 Rh6 Nf6 Kg7 Ng4 Rf6 Nge3 Kh8 Be1 Nc3 Bb5 Ra4 Ba6 Nb5 Bd2 Nd5 Bc3 Ne7
1k2rb2/pNRnN3/1bRbbbn1/4NPnQ/Q1RP1qp1/P7/2B5/2K1rQ2 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 f5 gxf5 h6 Bb2 Rh7 Bf6 Rh8 Bg5 hxg5 h4 Kd7 f4 Kc7 c4 e5 a3 b5 c6 e3 c5 b4 d3 e4 h5 g4 f6 g5 f7 g3 h6 g4 h7 g2 Nf3 g1B Nc3 b3 Rc1 e2 Kd2 b2 Qa4 Qf6 Rh6 Ne7 Ne5 Nd7 Nd5+ Kb8 Rc4 b1N+ Kc1 Ng6 Ne7 e1B d4 e3 Bg2 e2 Be4 Bh4 Bc2 Rg8 h8Q e1B Rh7 Nc3 Rg7 Beg3 Qh5 Ne4 Rh7 Ng5 c7+ Kb7 Rh6 B1h2 Rh7 Rb8 c6+ Ka8 Rh6 Rb3 Rh7 Re3 Rg7 Bb7 c8N Kb8 Nd6 Bc8 Nb7 Be1 Rh7 Ba5 Rg7 Bb6 Rh7 Bg7 f8Q Rh8 Qf7 Re8 f5 Qd6 Qd5 B2g3 Qf3 Bf8 Qf1 Bh2 Nf7 Qf4 Ne5 Nc5 Rg7 Be6 Rf7 Nd7 Rg7 Nh3 Rf7 Bf6 c7+ Ka8 Rh7 Ng5 c8R+ Nb8 R8c5 Nd7 Rc7 Kb8 R7c6 Qe4 Nf7 Bd6 Ne5 Qf4 Nd5 Nc5 Rhc7 Nd7 Ne7 Re1+
1BQ3Q1/1bp2N2/6rq/n2Pb2p/2N1rb1n/b1k1PNK1/1R2Q1nP/2BB3r w - - 0 1 illegal: No possible last move, all moves rejected
1Q3b2/1n2rbpQ/1n2Q2N/rrP1P3/N5Pp/2q2k1B/2b1nN1B/1B3KRr w - - 0 1 illegal: No proof kernel
4QN1n/1b1QR1p1/krq3PR/B5N1/3Qrp1P/2r3P1/bbR1q3/2bN2nK w - - 0 1 illegal: No proof kernel
2QN4/2KqbB2/R1Q5/1N1pr3/1knq1bnQ/3rp3/n2PPP1R/1rR2n1N w - - 0 2 legal: proof: c4 b5 cxb5 h5 g4 hxg4 a4 f5 b4 d6 b6 Bd7 a5 Bc6 b5 Bg2 Bb2 Bh3 Bf6 Bg2 a6 Bb7 Bh4 f4 Bg3 fxg3 axb7 Qd7 Nh3 Qc8 Ng1 Qd8 h4 Kd7 h5 g5 h6 a5 h7 e5 Rh4 c5 Ra3 e4 Qc2 g2 Rf3 g3 Rb3 c4 Rf4 d5 Re3 Kd6 Rf6+ Kc5 Rd3 c3 Nh3 g1R Kd1 g2 Nf4 g4 Rh3 a4 Rh2 g3 Nh5 e3 Na3 Nd7 b8R Ne5 b7 Nh6 b6 Kb4 Rc8 Qd7 b8N Nhg4 b7 Be7 Nb5 a3 Ra6 Re8 h8Q a2 Qh6 Nc4 Nc6+ Kc5 b8Q a1Q+ Qc1 Qb2 Nd8+ Kb4 Rc5 Qa1 Qc8 c2+ Ke1 Ra7 Qf6 Qd4 Qh4 Rh1 Qc6 g1N Bh3 Rc7 Kf1 Nf3+ Kg2 Rc8 Qd1 c1N Qc2 Na2 Qc1 Nf6 Be6 Ng4 Bf7 Rc7 Kh3 g2 Kg3 Rg1 Qc2 Rb1 Qf5 g1B Qfe6 Qh8 Kf4 Qd4+ Kf5 Rb7 Ng3 Rb3 Nh1 Rd3 Rh3 Bh2 Qc8 Nb2 Rc1 Bf4 Rh2 Nc4 Qc6 Qc7 Qc8 Rb6 Rh3 Nfh2 Ke6 Nf1 Rh2 Rg8 Ra5 Rg5 Ra6 Qa7 Ra3 Qa4 Kd7 Re5 Kc7 Ka5 Nd6 Rb1 Nb5 Kb4 Nd6 Qb5 Ra6 Qbc5 Nb5 Qd6+ Kb7 Qe6 Kc7 Qd7+
Bk1bR2n/2rbQ1RQ/1p1n2r1/1P4N1/1Pp2K2/2qP1B2/1R1Bq2b/1Q1q1q2 w - - 0 1 illegal: No proof kernel
4Rr1Q/2n3r1/q1kpb2K/1q1NP2N/Pb1RB3/p1N3n1/Pb3r1r/1Q1R2Q1 w - - 0 1 illegal: No proof kernel
k2nrrnQ/1rn1PR1P/B2pN1q1/5qnR/2N1pK2/2R2NQ1/4P1Q1/b2b4 w - - 0 1 illegal: No proof kernel
4B1k1/1Q1N2b1/KqRpP3/2R1N2n/1b1Q2Nn/Q1P1q2n/pr1P2r1/Rb3b2 w - - 0 1 illegal: No possible last move
1b2bB2/4Pn1r/B1rR4/5Q1r/pk1K2bR/1Prn1pR1/1B1QqP2/N4Q1b w - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 Kd2 Kd7 Kd3 a5 e4 h5 g4 c5 b6 f5 e5 h3 b3 f4 b7 a4 g5 h2 g6 c4+ Ke4 c3 g7 d3 Ra2 h4 Qe1 h3 Bg2 d2 Bf1 d1B Rd2 c2 Kd4 Qe7 Ne2 Rh5 Bb2 Nh6 g8R c1R Rg3 Na6 b8Q Rc6 Qb5 Nf7 Qd3 Qe6 Qf5 Nb4 Rdd3 f3 Qd2 Bc2 Qc1 Kd8 d7 Kc7 d6+ Kb6 d8B+ Kb5 d7 Bd6 Be7 Bb8 d8Q Ra5 Rd2 Nd3 Bf8 Ra7 Qdg5 Rac7 Qe3 Qe7 e6+ Kb4 Rd1 Rc3 Qed2 Rc5 Qb1 Qe8 Qbc1 Qb5 e7 Rc6 Nf4 Bd7 Ng2 Be8 Ne3 Bb1 Rhg1 h1R Nc2+ Ka5 R1g2 h2 Na1 Kb4 Rh3 Qa6 Rgg3 Qc4+ Ke3 Qe6+ Kd4 Qe2 Rh4 Nf4 Qf6 Bf5 Qb1 Bg4 Qff5 Qe1 Ba6 Qe2 Rdg1 Nd3 Qf1 Bh3 Rg6 Bg4 Rg2 Rg1 Rd6 h1B Rg3 Rh7 Qh3 Rc1 Qf1 Rc5 Qe6 Rch5 Qf5 Rc2 Qdf4 Rc6 Qd2+ R2c3
1qk1Kb1Q/3pbQp1/b4RB1/3P2Bn/5n2/r4PQ1/P1bNR3/1rrR2Br w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 a4 b3 axb3 Na3 c6 Nb5 cxb5 Qf3 b4 Qg4 Ra6 Qd1 Ra8 Ke2 e5 Ke3 b5 Ke4 b2 Kd5 b1B h4 b3 c4 b4 d4 e4 c5 b2 c6 e3 c7 e2 h6 e1B h7 b3 h5 Qf6 h6 Bc2 Qd3 b1R Rh2 b2 Bg5 Ba5 Qg3 Bd2 Bd3 Bfb4 Nf3 Qa6 f6 Ba4 f7+ Kf8 Bg6 Be7 Ke5 Rh1 d5 Qa7 Rd1 Bdb4 Nd2 b1R f3 Na6 Re2 Nf6 Kf5 Rg8 h8R Nc5 h7 Bc2+ Ke5 Ba6 c8Q+ Ne8 Qc6 Nf6 Qe6 Nd3+ Kf5 Nf4+ Ke5 Bec5 Qf5 Ke7 f8B+ Kd8 Bd6 Bg1 Bc5 Kc8 Kd6 Qb8+ Ke7 N6h5 Qf7 Rd8 Rf8 Ra7 Bd6 Bgc5 h8Q Rc1 Qe8 Ba3 Rf6 Rb7 Qf7 Rbb1 Qfg8 Bcb4 Bc5 Re8+ Kf7 Rd8 Bg1 Be7 Qe8 Bf8 Qe6 Re8 Qf5 Re3 Qe6 Bb4 Ke8 Bbe7 Qf7 Ra3
Qnb2k2/R4ppR/n1nr2P1/1P2Q2q/1NB4Q/3r1nN1/1KR2PqN/1q2r3 w - - 0 1 legal: proof: d4 d5 Kd2 c5 a4 cxd4 e3 b5 axb5 d3 Kc3 d2 Kb3 d4 Kb4 d3 Kb3 Bb7 Kc3 Bc8 g4 h6 b3 e6 g5 Ba3 g6 Be7 Bb2 Nd7 Kd4 Ba6 Ke4 Bc8 Kf3 Nb8 Bf6 Ba3 Kg2 Bb2 Bg5 Bd4 exd4 hxg5 Kf3 a5 Ke3 e5 h4 e4 c4 a4 b4 a3 b6 g4 h5 g3 h6 a2 d5 g2 Kd4 e3 Kc3 e2 h7 e1R c5 Bh3 b7 Qh4 d6 Qf4 c6 Qf3 b5 Kf8 d7 Qe2 d8N Qf3 c7 Qe4 c8R Ra3+ Kb2 Ne7 Qg4 d1Q Rc2 d2 Nf3 g1N Bc4 Nec6 Qh4 Bc8 Nh2 Qh5 Nc3 d1Q Ne2 Qg2 Ng3 Rg8 h8Q Nf3 Re2 Rd3 Rc2 Nb4 Nc6 N4a6 Nb4 Rd6 Rac1 a1N Rb1 Nb3 Ra1 Na5 Ra3 Nd7 b8Q Nc6 Qa8 Ndb8 Qg5 Qhh3 Qhh4 Rh8 Ra4 Rh5 Qf6 Rhd5 Qe5 Rd3 Ra2 Nc5 Ra7 Nca6 Nhf1 Qf5 Rh3 Qg4 Nh2 Qf5 Qg4 Qg5 Rh7 Qh5 Qh4 Qb1#
2bNRr1Q/pPRp4/Rbn2N1P/3qQ2n/3PBr1b/n5p1/1Q2r1N1/4K1k1 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a4 hxg4 Ba3 Bb7 axb5 Na6 b6 Bc8 b5 Nb8 Bb4 cxb4 h4 Kf7 c4 Kf6 f4 g5 d4 e5 b7 e4 h5 b3 h6 b2 c5 e3 c6 e2 c7 g3 b6 g2 Qc1 g4 Nc3 b1R Nf3 g1N Ra6 g3 Bg2 Rb2 Nh4 Be7 Be4 Nc6 b8Q Qe8 Ng2 Qf7 Rh4 Qd5 Rg4 Ra2 Qb2 Rh7 Rg5 Rf7 Rg7 Rf8 Rh7 Bd8 Re7 Rf7 Re8 Be7 Kd2 e1B+ Kd1 Nf3 Ke2 Bb7 c8R Nd2 Rc7 Nc4 Kd1 Rf8 Ke2 Bc8 Kd1 Kf7 f6 Ke6 f7 Nf6 f5+ Kd6 Ke2 Nh5 f6 Na3 Kf1 Bd2 Ke2 Bg5 Kf1 Bd8 Ke1 Qe6 Nd5 Bh4 Nde3 Qd5 Ng4 Rg8 f8N Rg5 f7 Rf5 Ng6 Rf4 Ne7 Ke6 f8Q Kd6 Ne5 Ke6 Nf7 Kf6 Ne5+ Kg5 Nf7+ Kg4 Qh8 Kh3 Ng8 Kh2 Nf6 Kg1 Rb7 Be7 Qe5 Bc5 Rc7 Bb7 Re7 Rf8 Nd8 Bc8 b7 Bb6 Re8 Nb1 Qa1 Na3 Qc3 Rd2 Qb2 Re2+
4bR2/1k1N1pP1/1N3Pqp/2q2RQ1/2r1K2b/nPp3QQ/2r1R2b/N1n2r1B w - - 0 1 illegal: No possible last move, all moves rejected
nb1QR2B/k3qbpq/1R1Q1Q1n/2BKr3/pRpP4/P1q5/NPr1B3/3n4 w - - 0 1 legal: proof: e4 b5 g4 h5 c4 hxg4 Na3 f5 exf5 d5 cxd5 Nh6 Nc4 bxc4 Qe2 Ng8 Qf3 Qd6 Qd1 Qd8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 h4 Kb7 f4 e5 d4 a5 d6 a4 h5 c3 h6 c4 f6 c2 a3 g3 d7 g2 h7 Na6 f7 Qh4 d8R Ka7 Kd5 e4 f5 e3 f6 e2 Bf4 c1Q Bd6 e1Q Qf3 Qcc3 Ne2 g1N Nc1 Nh6 Na2 Qe7 Re1 Nh3 Be2 Nf2 Rhf1 Bg4 Rb8 Bh5 Rb4 Nd1 Rh1 Rb8 Bc5+ Rb6 Qg3 Qh3 Qd6 Qhd3 Rh3 Qb1 Re3 Qg6 Re6 Nc7+ Ke5 Na8 Kd5 Qe8 Qd8 Bd6 f8Q Bb8 Qfd6 Qe7 f7 Qgd3 f8Q Bf7 Qfe8 Rf8 h8B Qh7 Qb5 Bg8 Qbe8 Rf2 Qg6 Bf7 Qf6 Rh2 Bg4 Rc2 Re3 Qd2 Reb3 Qc3 Bf3 Ka6 Be2 Rc6 Rb6+ Ka7 R3b4 Qc7 Q6f8 Rd6+ Ke5 Qd7 Re8 Qc7 Qf8e7 Re6+ Kd5 Qd7+ Qd6 Qb7+ Qc6 Qe7 Qcd6 Re5+
1Q1Q1q1N/Rn1p1PBK/P1Q1Br2/3b4/pRp5/2B1br2/Pn2q3/1bkr1R2 w - - 0 1 illegal: No proof kernel
B7/P1b2QQ1/pp2B3/RPnq1Qrp/2Kb1n2/2R2r1N/P4B2/1q1kbr1R w - - 1 2 illegal: No proof kernel
R4bR1/1bN2r1p/2NP4/Br1p3n/1rq3Nk/p2P1Q2/1QQ3KP/1n1qR2n w - - 0 2 legal: proof: c4 b5 g4 d5 a4 f5 axb5 fxg4 Bg2 e6 cxd5 Bb7 d6 Bc8 Bd5 exd5 Kf1 Kf7 b4 Kg6 f4 Kh5 e4 g5 f5 c5 e5 a5 b6 c4 e6 a4 f6 a3 b5 c3 f7 c2 d3 Ra7 b7 Nd7 b8R Ngf6 e7 Kh4 e8Q g3 b6 g4 b7 g2+ Kf2 g3+ Kf3 Nb6 Ra8 Nc4 b8N Bb7 Nc3 Qc7 Nc6 Nh5 Bd2 c1N Qb8 Ne2 Nh3 g1Q Nb5 g2 Nf2 Neg3 Ba5 Qc8 Qe2 Qd1 Rg1 Nh1 Nc7 Rg8 Re1 g1R Ng4 Rf1+ Kg2 Rf4 Qa2 Nd2 Qc2 Rb4 Re8 Nb1 Re1 Bh6 f8Q Rb5 Qf5 Bf8 Qf3 Rg7 Ra2 Rf7 Rb2 Ra6 Rb4 Rab6 Rbe4 Rb4 Re8 R6b5 Rd8 Bh6 Rh8 Bf8 Rg8 Ba6 Qb6 Bb7 Qd4 Qe6 Qh8 Qe4 Qhb2 Qc4
2b3r1/Q2Pp3/r3Q1n1/1k1B2Nn/2nBpnp1/q3n1PQ/KB4Pb/NR5N w - - 0 1 illegal: No possible last move, all moves rejected
4nk2/q1QKbPr1/R2Q3n/Bp4N1/3Qb1p1/1P1rrp2/P1N2rNB/5b1B w - - 0 1 illegal: No proof kernel
kNbK3B/1R1q1qQ1/2pr1pPp/2B5/brP1Nn1P/8/4QQq1/nB3q1N w - - 0 2 illegal: No possible last move, all moves rejected
Kq2nB1R/Np2r1QR/1PQbPN1n/1Qbqkp2/8/r2q1PR1/1N3p2/6q1 w - - 0 2 illegal: No proof kernel
Nn3KB1/1q3Q2/bp1n3P/1P1rq2N/2Qppn1R/3bB1nQ/2NP2r1/B4k2 w - - 0 2 legal: proof: g4 a5 b4 h5 e4 hxg4 b5 f5 exf5 Kf7 a3 Ke8 c4 d5 c5 e6 a4 Bd6 cxd6 Rh5 Ra3 Rh3 Rb3 Rh8 Rb4 axb4 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Kg3 Ke5 h4 Kd4 f4 c5 f6 b3 f5 b6 h5 c4 h6 c3 f7 e5 f8B c2 d7 b2 a5 e4 a6 Ne7 a7 Qe8 d8Q Rg8 f6 Ba6 f7 Nc8 Ba3 Nd6 Ne2+ Kd3 f8Q Qe5+ Qf4 Rg7 Rh4 d4 Qc7 Rg8 Bh3 Rg6 Qf1 Rg8 Bc5 Rd8 Na3 b1B Bb2 c1Q Bb4 Qc6 Nc2 Qb7 Ba1 Rg8 Qh1 Rg6 Bf1 Rg7 Qh3 Rd7 Kg2+ g3 Qf7 g4 Qc5 Nf5 Qc6 Rd5 Be7 Nd6 Bg5 Qe8 Be3 Qe5 Kg1 g2 Kf2 g1N Ng3+ Ne2 Nh5 g3+ Kg2 Nd7 Qc7 Rg8 a8N Rg7 Qh2 Nb8 Kh3 g2 Qc8 Rh7 Kg4 g1N Qg2 Nh3 Qc5 Nf4 Qh3 Nf5 Kg5 Rh8 Bg2 Neg3 Bf1+ Nfe2 Kg6 Rg8+ Kh7 Nd6 Qcc8 Ngf5 Qcc7 Rg2 Qc5 Ng3 Kg8 Rf2 Kf8 Rh2 Bg2 Nf4 Qb4 Ke2 Bf1+ Kf3 Bc4 Rg2 Bb3 Ke2 Qc5 Kf1 Qc4+ Ne2 Ne1 Bd3 Nc2 Ng3 Qc5 Nc8 Qe8 Rd7 Bg8 Rd8 Qc4 Rd5 Qf7 Nd6
4Qr1R/Bb3pQ1/1Q3N1p/3nNKPr/P2q2n1/2pB2bB/2Pk1Nnp/2b5 w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 gxh4 b4 a5 bxa5 Qf6 Ba3 Qe7 Bc1 Qd8 a4 d5 e4 Bc5 e6 Ba7 e5 Bc5 Ra3 Be7 Re3 Bf8 Re4 dxe4 Ke2 Ke7 Ke3 b5 Kf4 c5 g4 h3 d4 c4 d5 b4 a6 e3 a7 b3 g5 e2 Nf3 e1B Kf5 h2 Nbd2 c3 Ne4 b2 Bh3 b1N Qd4 Nf6 Nf2 Ng4 Be3 Nc6 Rg1 Qd6 Rg3 Na3 Qb6 Rb8 a8B Nb4 Bc6 Nc4 Bb5 Bb7 Qd4 Kd8 e7+ Kc7 e8Q Bd2 e6 Bc1 e7 Qc5 Qc8+ Kd6 Qg7 Qd4 Qe8 Kc5 d6 Nd5 d7 Ra8 d8Q Rb8 Qg6 Bg7 Qh6 Be5 Qg7 Bf4 Ne5 Rc8 Rf3 Bg3 Rf4 Rf8 Rf3 Rc6 Qb8 Rh6 Qbd8 Rh5 Qb6+ Kb4 Rf4 Ka3 Rf3 Kb2 Rf4 Nd2 Re4 h6 Bd3+ Qb4 Rc4 Nf1 Rc8 Kb1 Qbf6 Qc4 Ba7 Qd4 Qa6 Be3 Qb6+ Kc1 Qeb5 Kd2 e8N Ke1 Qd7 Bc1 Nf6 Kd2 Qdb5 Qc5 Qe8 Nfe3+ Ke4 Ng2 Kf5 Qd6 Nc6 Nc7 Qe6 Qd4 Ne5 Re8 Rd8 Nd5 Qec6 Re6 Rh8 Re8 Qe6 Rg8 Qe8 Rf8
4QN2/np1NBBKb/5pR1/3nP2Q/Np1p1r2/k4rB1/3P1Pq1/b1bn1Q2 w - - 1 2 legal: proof: c4 a5 b4 axb4 g4 h5 gxh5 d5 cxd5 e5 Bb2 Rh7 Bd4 Rh6 Be3 Rh8 a4 Nd7 Ra3 Bd6 Rd3 Nb8 Bf4 Bc5 Bg3 Bd4 Bh3 Bc3 Rd4 exd4 Bf1 Ba1 e4 Kd7 Ke2 c5 Kd3 g5 h4 f6 d6 Kc6 d7 g4 a5 Kb5 a6 Ra7 h6 Bb2 h7 Qf8 d8B Nh6 h5 Qg8 Nf3 Bf5 Rg1 Bg6 Be7 Nc6 Ne5 Nf5 h6 Ne3 Nd7 Nd5 Nc3+ Ka5 Kc4 Ba1 e5 Ra8 Qc1 Na7 Na4 Qg7 Be2 Rhg8 h8Q Bh7 Qf1 Rac8 Bh2 g3 Bh5 g2 Bf7 Qg3 Nf8 Rg4 Qg8 Qf3 Bg3 Rf4 Qg5 Qg4 Qh5 Qh3 Nd7 Rg8 Nf8 Rf3 Nd7 Rg4 Nf8 Rgf4 Nd7 Bb1 h7 Qg4 h8Q Bh7 Qe8 Qg5 Nf8 Qg4 Rh1 g1N Rh4 Qh3 Rg4 Qg2 Rg8 Ne2 Rg6 Nc8 a7 Nec3 a8N Na7 N8b6 Nd1 Nbd7 N5e3+ Kd3 c4+ Ke2 c3 Kd3 Nd5+ Kc4 c2 Kc5 c1B Kd6 Qh1 Ke6 Qh2 Bg8 Qg2 Kf7 Rb3 Kg7 Rbf3 Qe1 Kb5 Bf7 Kc4 Qg1 Kb3 Qf1 Ka3
1R4b1/p3Qr2/rN3Q2/r2P1p2/P1q2p1Q/1np2B2/NkNbnPR1/2r1R1K1 w - - 0 2 legal: proof: c4 c5 g4 h5 gxh5 d5 b4 dxc4 bxc5 e5 Bb2 Qe7 Bd4 Qc7 Be3 Qd8 Bf4 exf4 a4 Kd7 e4 Ke6 d4 g5 h4 b5 d5+ Ke5 h6 f5 h7 b4 c6 g4 h5 b3 c7 b2 h6 g3 Rh4 g2 Nc3 b1R Rg4 Be6 c8N Nc6 Nge2 g1R Nd4 Nf6 Nb6 Na5 Rg2 Qc7 Nc2 Rb5 Qe2 Nh5 Na2 Nb3 Rb1 Rg8 h8Q+ Bg7 h7 Ra5 Qg4 Raf8 Qh4 Rf7 Ke2 Rgf8 Re1 Ng3+ Kf3 Rf6 Be2 R8f7 Qd8 Bf8 h8Q Bb4 Qe7 Bd2 Q8h6 c3 Q6g5 Rh6 Qef6+ Kd6 e5+ Kc5 Bd1 Ne2 Qgg7 Bd7 e6 Rg6 e7 Be6 e8R Qc8 Na8 Kc4 Nb6+ Kd3 Qgh7 Qc4 Rc8 Re7 Re8 Bg8 Rb8 Rf7 Qhg7 Rh6 Qe7 Re6 Qgf6 Rh1 Nd7 Rea6 Nb6 Rf1 Ne3 Qc6 Rg6 Ng3 Kg2 Rb5 Bf3 Rba5 Re2 Rc1 Re1 Ne2 Kh1 Qc4 Rg2 Qc5 Nd1 Kc2 Ne3+ Kb1 Nc2 Kb2 Kh2 Qc4 Kh1 Ned4 Kg1 Ne2+
1R3nN1/2N1p1Rb/1bp2q2/2KQPRrr/bP3N2/1Q3Pk1/3Qbpnp/3B4 w - - 0 1 illegal: No proof kernel
4r3/3NR1nb/pp5P/Q1RQrqr1/2PN2p1/QPNkBpb1/nK3r2/7R w - - 0 1 illegal: No proof kernel
4Q1Nn/2qq2pq/3R1NQ1/bpppn3/nRQ1P1b1/2PP3R/2r5/1K1k2BN w - - 0 1 legal: proof: f4 b5 b4 a5 g3 axb4 Bh3 e5 Bf5 h5 Bg4 f5 fxe5 f4 Bf5 Ra6 Bh3 Rf6 g4 Rf5 gxf5 Nh6 Bg4 hxg4 Kf2 Ng8 Kf1 Rh3 Ke1 Rh8 a4 Ke7 e4 c5 h4 g3 e6 Kf6 a5 Ke5 f6 Kd4 e7 b3 e8N f3 d3 g2 Kd2 d6 f7 f2 a6 f1Q a7 b2 a8R Ne7 h5 Bf5 h6 Bc8 h7 Be6 R1a4+ Bc4 Qh5 Nd7 Nf6 Ng6 Rh3 Qf5 R8a6 Nde5 Ng8 Be7 f8Q Qfd7 Qe8 Q8c7 Rb4 Bd8 Nc3 b1N+ Kd1 Qf7 Bh6 Qfd7 Nd5 Nc3+ Kc1 Na4 Ndf6 Kc3 Be3 Be6 Kb1 Bg4 Bf2 Kd2 c3 Kd1 Ne2 g1Q Ng3 Qh2 Bg1 Qh1 Qf7 Qh2 Qc4 d5 Rd6 Qh1 Ne7 Rf8 Neg8 Nh8 Qg6 Qh2 Nh1 Rf7 Ne8 Rf2 Nef6 Rc2 Re3 Nhf7 h8Q Qh4 Qhh5 Nh8 Qe8 Qh3 Qhg6 Qh7 Rh3 Qcc6 Qe6 Ba5 Qee8 Qcc7
2nNqqNR/pp1r1pq1/4pPr1/2R5/2K1Qb2/2Q5/1P3BPQ/k1qn1R1N w - - 0 1 illegal: No proof kernel
3Qb2K/1P3bq1/p1r1P3/n3B1Rp/1r1p1QN1/1k1pQp2/2NPnb1N/4BB2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 e5 axb5 exf4 Ra4 Qb6 Rd4 cxd4 b4 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 h5 Kf5 Kd5 g4 Kc4 e4+ d3 b6 f6 Kg6 d5 b7 f5 b5 f3 e5 f4 e6 a6 b6 f2 Nf3 Bb4 Kg7 Nc6 b8B Ne5 b7 Bc3 g6 Rh6 g5 Bb2 Rg1 Qe8 Nh2 f3 Qe1 Rh8 Qe3 Bd4 Bb2 Ne7 Na3+ Kb4 c4 Bd7 c5 N5c6+ Be5 Rd8 Nc2+ Kb3 Ba1 Na5 c6 Rc8 c7 Rf8 Rg2 Rf6 Bg3 Rf4+ Kh7 Bb5 g7 Nf5 g8N Bd7 Bh4 Ng3 g6 Ne2 g7 Qg6+ Kh8 Be8 Nf6 Bb6 g8Q Rb4 Rg5 Bc5 Bh3 f1B Be5 Bd4 Qf4 Bf2 Nfg4 d4 Qe3 Bf7 Qd8 Be8 Bg2 Bf7 Bh1 Bh3 Bg2 Be8 Bf1 Bf7 Nh6 Bf5 N6g4 Be4 Bhg3 Bc6 Bh4 Ra8 c8Q Bce8 Qcc7 Rc8 Qcd6 Rc6 Qf8 Bg1 Be1 Bf2 Qh6 Qe4 Qhf6 Qg6 Qff4 Qg7+
kbNNn3/b3n3/b2b3b/2r5/2B1R2n/1B1r1P2/1N2PBPN/N3Q1Kq w - - 0 1 illegal: No possible last move
r1nR1q1k/R4bbp/QN3P1b/R4rP1/4K2n/r1R3N1/N4P2/RB1b4 w - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 g5 c4 c5 cxd5 a5 h4 gxh4 bxa5 Be6 Ba3 Bc8 Bb4 cxb4 axb5 Bb7 Rh3 Ba6 Rh1 Bc8 Ke2 Kf7 Kf3 Kg7 d4 e5 g4 b3 a6 b2 d6 h3 g5 h2 d5 Be6 d7 Nh6 d6 Nf7 b6 Rg8 b7 Nh6 a7 Nc6 b8N Bf7 Ke4 Ne7 Ra5 Nc8 Ne2 Kh8 Nbc3 b1B+ Qd3 Bc2 Na2 Bd1 Qa6 Rg7 Rg1 h1R Ng3 Rh3 Bd3 Rg6 Rh1 Rf6 Bb1 Qe7 d8R Qe8 Ne2 Ra3 d7 Bg7 Rh3 Qg8 Rc3 Qf8 Ke3 e4 Ng3 Be2 Kd4 e3 Ke4 Bd1 Re8 e2 d8R e1B Re7 Bd2 Nd7 Bf4 Nb6 Be5 Qb7 Rd6 Red7 Rd5 Qa6 Bd6 f6 Nf5 Re7 Nh4 Red7 Rf5 Re7 Rb8 a8R Bc5 Raa7 Ra8 Rec7 Qg8 Rc1 Bcf8 R7c3 Bh6 Bc2 Bfg7 Ra1 Qf8 Bd3 Be2 Bb1 Bd1
2k1nK2/qr1qRN1P/5Q2/B1rqP2P/NN4qN/5b2/qq3R2/Rn1Nb3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 a6 b4 Kd7 b6 Rh6 b7 Rh8 b5 Nh6 b6 Ke7 Bh3 Ng8 Bf5 Ke8 Bd3 Qf6 Bc4 Qd8 Bb5+ axb5 Kf2 Kd7 Kf3 c5 Ke4 g5 Ke5 f5 e4 f3 h4 f2 d4 f1Q h6 f4 h7 c4 d6 f3 h5 g4 d5 c3 Ra3 b4 Kf5 b3 Kg6 g3 Kf7 g2 e5 b2 Bh6 c2 Be3 c1Q Rh2 f2 Nc3 b1Q Bd2 Ra5 Nf3 g1Q Ra1 Ne7 Nh4 Qc4 Qf1 Qcb2 Nd1 Rc5 Ba5 Na6 b8R Qcg4 b7 Nc7 Qa6 f1Q+ Rf2 Q1a2 Ra8 Nc6 Ra7 Ne8 Qb6 Qc7 b8N+ Kd8+ d7 Qd3 Qa6 Ne7 Qf6 Bb7 Na6 Bh6 Nb4 Bd2 Rf5 Rg8 Rf2 Rg7+ Kf8 Be1 Qc6 Qb6 Qf6 Kc7 d8N Qh1 d6+ Kc8 Nf7 Bf3 Rd7 Nd5 Re7 Nc3 d7+ Kc7 d8N+ Kc8 Ra7 Nb1 Re7 Qa7 Nb7 Qdf5 Ng5 Qd7 Nf7 Rc6 Nc5 Qhg2 Na4 Rc5 Rf1 Qgd2 Rf2 Qd2d5 Qe6 Rg6 Qf5 Rb6 Qf6 Rb7
N1b1k1q1/4Bq2/1qnr1R1K/5QpP/3n1PR1/1RN1R1R1/b1P2Nrb/2r5 w - - 0 1 legal: proof: a4 c5 d4 b5 axb5 cxd4 f3 f5 e3 f4 exf4 g5 Kf2 g4 Ke2 Qb6 Ke1 Qd8 fxg4 Kf7 g5 Qb6 g4 Qh6 g6+ Ke8 g7 Nc6 g5 Qf6 g6 Nb8 Bd3 Qb6 Bf5 Nf6 g8N Qc7 g7 Qd8 Bg6+ hxg6 Kf2 a5 Kf3 d5 h4 e5 b4 a4 b6 g5 b7 e4+ Kg3 a3 b5 a2 b6 e3 Qe2 d3 Qf3 d2 Ba3 d1Q Nh3 e2 Qd3 e1Q+ Nf2 d4 Bb4 Qee7 Nc3 Nfd7 Qf5 d3 Rg1 Qf7 Ne7 d2 g8R Nc6 b8R Nde5 b7 Nf3 Kg4 Qb6 Rg6 Ra6 Ned5 Bc5 Rf6 Rh6 Rc1 a1R Rg3 Qh1 Rb1 Nfd4 Rbg1 Rc1 Ra8 Qe4 b8R Qee6 h5 Raa1 Ra3 Qg8 Rb3 Qef7 Ra8 Rab1 Raa3 Be6 R1g2 Rg1 Re3 Rbc1 Rgg3 Rg2 Nc7+ Ke7 Na8 d1B+ Kh3 Ke8 Rg4 Be2 Reg3 Ba6 Re3 Nb5 Reg3 Bd4 Be7 Bac8 Re3 Rh2+ Kg3 Rg2+ Kf3 Bc5 Ke4 Nbd4 Ra1 Rg3 Rbb1 Ne5 Re1 Qa6 Rg6 Qd6 Qf6 Bc4 Nfd1 Ne6 Kf5 Bg1 Re3 Qb6 Nf2 Ba2 Rb3 Bh2 Rab1 Rh1 Rg1 Nc6 Rg2 Qfh7 Qe5 Rc1 Kf6 Ned4 Qf5 Qc4 Rg1 Qhg8 Rg2 Qge6+ Kg7 Qcd5 Rf6 Qc4 Rf7 Qed5 Rg1 Rd6 Rf6 Qg8+ Kh6 Qcf7 Nfd1 Rf3 R1g3 Rf1 Nf2 Rg1 Qh7 Rg2 Qd3 Na7 Qf5 Nac6
B3b3/1Br1nB2/2b1P3/2R1bK1R/2n5/1Qnp1R1P/NR2RqqP/1r2q2k w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 h5 axb5 e5 e4 h4 Nc3 h3 gxh3 f6 Be3 f5 Bd4 exd4 e5 Nc6 Ne4 fxe4 Kd2 Nb8 Ke2 Qf6 Ke1 Qd8 Kd2 Ke7 f4 Ke6 c4 Kf5 b4 a5 e6 d5 b6 g5 c6 a4 b5 d3 Ke3 a3 c7 a2 b7 g4 c5 d2 b6 d4+ Ke2 e3 Kd3 g3 c6 g2 Rc1 a1Q Ne2 g1N Bg2 Bg7 Rc5+ Be5 Nc3 e2 Na2 e1Q Qb3 Bd7 c8B d1B c7 Be8 Bd7 Nc6 c8B Qdh4 b8R Ne2 b7 Na5 Rf1 Nc4 Rf2 Nc3 Re2 Qb2 Ba4 Bh5 Be8 Qhf2 Bf7 Ra7 Ra8 Bg6 b8R Rc7 Raa5 Ne7 Ba8 Rh4 Rb6 Rg4 Bcb7 Rg1 Re3 Bg4 Re2 Bf3 Rbb5 Bc6 Rb4 Kf6+ f5 Kg5 Rb6 Bh5 f6 Kf4 Rb4 Kf3 Rbb5 Kg2 Rb6 Ncd5 Ke4 Kh1 Rb4 Ng6 Rbb5 Qg2+ Kf5 d3 Rb4 Nc3 Rab5 Na5 Rh4 Nc4 Rb4 Bhf3 Rh5 Be8 Qd1 Qa1 Rbb2 Bfc6 Bg8 Qeg3 f7 Rc8 f8R Qc1 Qb3 Rc7 Rf7 Re1 Rg7 Rg1 Bf7 Rd1 Rh4 Q3f2+ Rf4 Qd2 Rf3 Rb1 Rh7 Qde1 Rh5 Ne7#
3K4/R1NpB3/2n1Br2/5qb1/n1r1Pn1b/1PQq2N1/k4PBr/2B1q1NB w - - 0 1 legal: proof: g4 e5 a4 b5 axb5 f5 d4 exd4 h3 c5 Nf3 g5 Ra4 d3 Ng1 Bb7 Rb4 Bf3 Rd4 cxd4 gxf5 g4 Rh2 g3 Rh1 Bg4 hxg4 Qa5+ Nc3 Qb6 Nb1 Qd8 Kd2 Ke7 e4 Kd6 c4 Kc5 b6 Kb4 c5 a5 b7 h5 c6 a4 g5 g2 g6 h4 g7 a3 f6 a2 b3 a1B f7 h3 c7 h2 c8B Qa5 Ne2 g1Q Ng3 Ne7 g8B Nbc6 b8N Ra6 Bg2 Qf5 Qe1 Nd5 Nc3 Be7 f8B Nf4 Be6 Rh6 Qe3 Ra4 Nce2 Rf6 Ba6 Qf1 Rg1 h1R Bf3 Rh8 Bh1 Rh2 Bb5 Bb2 Na6+ Ka3 Nc7 Ka2 Ba6 Bd8 Be7 Q1h3 Rf1 Rc4 Ng1 Ba1 Kd1 d2 Qc3 Bb2 Kc2 d1N Re1 d3+ Kd2 Ba3 Bb5 Nb2 Ke3 d2 Ba6 Rd4 Bf1 d1Q Bfg2 Na4 Re2+ Kb1 Ra2 Qe1+ Kf3 Bb2 Ra3 Rc4 Ra2 Qb5 Ra3 Qh7 Kg4 Qd5 Ra2 Qd3 Kg5 Ba3 Qe5 Bc5 Qc3 Be3 Ra3 Nb2 Ra5 Na4 Ra7 Ka2 Bg4 Rd6 Be6 Qh5+ Kf6 Qe5+ Kf7 Qf5+ Ke8 Bd2 Bf8 Bh4 Be7 Ng6 Qe5 Bdg5 Qg7 Nf4 Qc3 Na5 Kd8 Rdc6 Bg8 Rf6 Be6 Nc6+
2QB1n1B/k1b1R1Rr/rR1P1q1n/1Rq3P1/1bp1n1n1/3P2N1/3R4/q2K3B w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 g4 Bf5 Nc3 Bc2 Ne4 Bb3 Ng3 f3 Nh5 Bc2 Nf4 gxf4 h3 Bf5 g5 Bg4 hxg4 Ba3 Rh5 Bb4 Rh1 Bf8 e4 Kd7 b4 Kc8 e5 Kb7 e6 c5 e7 f5 e8R h5 g6 a5 b6 h4 d3 a4 g5 h3 b5 f2+ Kd2 h2 g7 f3 Rb1 a3 Be2 f1N+ Kc2 f2 Re5 a2 Re4 a1B Bb2 c4 Bf3 f4 Ne2 Qc8 Ng3 Nh6 g8R Nd2 Re7+ Nd7 Rgg7 f1N Bc3 Kb8 b7 Ka7 b8R Ne4 Rb6 Rh7 Qe2 Qc5 Kd1 Bb2 Rg1 h1Q Rg2 Ba3 d6 Bb4 Qe1 Nh2 Rd2 N2g4 Bd4 Qg1 Bh1 f3 Bc3 Qgd4 Qf1 f2 Qh3 Qf6 Rb3 Nh2 Qf5 Qcd4 Qc5 N2g4 Qc8 Qc5 Rg8 Qg6 Bh8 Qf6 Rgg7 f1Q+ Kc2 Bc3 Re6 Qa1 Rb1 Be7 Kd1 Bd8 Ree7 Nf5 Rc6 Rb8 b6+ Ka8 b7+ Ka7 Bg2 Nfh6 Bh1 Nf8 Rb6 Bc7 Rb4 Ra8 Rb6 Qaa5 R1b5 Bb4 Qf5 Kb8 Qe6 Ra6 Qc8+ Ka7 b8B+ Ka8 Rc6 Bb6 Bc7+ Ka7 Bd8+ Bc7 Rcb6 Qaa1+
Nn1qNN1R/1NQ1rK1P/1BR3P1/R1n2N2/2P4b/p4b2/1qqr4/k3n2n w - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kf2 a5 Kg3 e5 h4 Ke7 b4 Kd6 c4 d3 h5 e4 Kh4 Ke5 b6 Kd4 h6 d5 Kh5 a4 g7 d2 Kg6 e3 f6 g3 b5 g2 b7 e2 h7 e1Q f7 Bb4 f8N Bg4 b6 Qf2 Rh6 Bf3 Kf7 Ra7 Nc3 Be7 Rc6 Nf6 g8N Nfd7 g6 Bh4 Ne4 Nc5 Nd6 Kc3 Nf6 d4 Nfe8 d3 Qf1 d1N Ne2+ Kb3 Ng3 g1N Ngf5 Qb2 Be3 d2 Qe1 Kc2 Qg3 Nf2 Ra3 Kb1 Ra2 Nbd7 b8R d1Q Nb7 Nh1 Qc7 Qdc2 Ned6 Ra6 Na5 Qg5 Ne6 Ra7 Qc8 Bg4 b7 Ne4 Nc7 Nf3 Na8 Ne1 Bb6 Nec5 Qd8 Re8 Rbc8 Qgd2 b8N Re2 Qe7 Qdd3 Rh8 Bf3 Ne8 Rd2 Ra3 Rc7 Nb7 Qdd4 Rb3 a3 Rb5 Ka1 Ra5 Na6 Qd8 Ndc5+ Nd7 Nb8 Qe7 Qdd3 Nf8 Qd8 Nbd6 Rd7 Nb7 R7d4 Qd6 Re4 Qc7 Re7+
NRB1KR2/b1rq1R1P/nP1R1q2/Q1B4n/2rqP1pB/6b1/Rb1b3k/8 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 f3 Nc3 f4 Ne4 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Ke7 b4 Kd6 h4 Ke5 d4+ Ke4 f6 c5 f7 a5 h5 g5 h6 a4 h7 a3 b6 a2 d6 c4 b5 c3 d5 c2 b7 Qe8 d7 Bd6 d8R Qe5 f8R Ra4 Qd2 Rc4 Nh3 Nf6 Qa5 Na6 b8R Qd4+ Be3 c1B Rg1 Bc7 d6 Nh5 d7 Bd2 Rf7 Rg8 Rdf8 Rg7 d8B Bd6 Rd1 a1B Rg2 Bb2 Rh2 Qd3 Bc5 Qd4+ e3 Ke5 Bd3 Bc7 Bf5 g3+ Kf1 g4 e4 f2 Kg2 Bd6 Bh4 Bc7 Ng5 f3+ Kh1 Kf4 Bc8+ Ke5 Rg2 Bd6 Ne6 f1Q+ Rg1 g2+ Kh2 f2 Nc7 Bbc3 Ra1 Bb2 Ra2 Qa1 Rd1 f1Q Na8 Qf5 Rbb7 Kf4 Rb8 g1B+ Kg2 Bh2 b6 Qdf6 Kf2 Bg3+ Ke2 Bc7 Kd3 Kf3 Re1 Kg2 Rd1 Bdc3 Ke3 Kh2 Rd6 Bd2+ Kd3 Qd1 Bb4 Rc6 Bc5 Qa1 Kc4 Qg1 Rb7 Bb8 Kb5 Ba7 Rb8 Rc7 Re6 Qgd4 Rd6 Re7 Kc6 Re8 Be6 Rc8+ Kd7 Rc6 Ke8 Rc7 Bc8 Rc6 Ba3 Rc4 Rfb7 Rgc7 Bc5 Rc6 Re7 Rc7 Ref7 Qd7+
6q1/3bnPqP/Nb5p/B1r1Q1qK/2nN2R1/1rNN1BNk/2B2q1P/2r5 w - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 Nh6 axb5 Ng8 g4 e5 d4 exd4 d6 Nc6 d7+ Ke7 g5 Nb8 e4 f5 b4 d3 e5 h6 g6 Qe8 Ra2 Qf7 Re2 Qe6 Re4 fxe4 Qc2 Nf6 Qb3 Qg8 Qd1 Qh7 gxh7 Ng8 d8N a5 f4 c5 Kf2 g5 Kg3 e3 f5 d2 Kg4 c4 e6 Kf6 b6 c3 e7 c2 e8B e2 b5 e1Q b7 a4 b6 a3 Bc6 a2 Ne6 a1Q Ng7 Ra5 Bd3 Rc5 Ne6 Nd7 b8N Qf2 b7 Ne5+ Kh5 g4 Qe1 d1R Bf3 g3 Nc3 g2 Nd4 Bd7 Nge2 g1Q Nbc6 Nc4 b8N Ne7 Nb4 Qg8 Bd2 c1Q N8a6 Ke5 f6 Bg7 Bg5 Qd2 f7 Rc1 Bh4 Bf6 Ng3+ Kf4+ Bf5 Be5 Rg1 Bc7 Qe2 Bb6 Qe6 Qde3 Rg2 Qe5 Qd5 Qeg7 Bc2 Qa5 Bf6 Qa8 Bh4 Rb8 Bf6 Rb7 Rg1 Qag8 Nd3+ Ke3 Be5 Qb5 Bc7 Rb8 Ne5 Kf4 Bd8 Qa5 Rg2 Rb7 Nd3+ Ke3 Nce4 Ba7 Nab4 Rc8 Na6 Rb3 Nge2 Qd2 Rg1 Rc5 Ba5 Bb6 Rg3 Qg2 N2c3 Qdf2 Rg5 Qgg3 Qe5 Qf4 Rg4 Qff6 Bfd1 Q6f4 Nde2 Kf3 N4g3 Kg2 Nd4 Kh3 Bf3 Qfg5+
1k1B1n1K/1q4Rb/P2qPr2/N4br1/Q1N2pP1/1RN3Nq/4q2N/b3q1R1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 g6 fxe5 Nh6 Bh3 Nd7 g5 Ng8 Bf5 Ndf6 h3 Ng4 hxg4 gxf5 Kf2 Kd7 Ke3 h5 Kd4 b5 e4 c6 a4 Kc7 g6 f4 d6+ Kb8 a5 f5 a6 b3 e6 b4 Ke5 b2 d4 b3 e7 f3 e8N c5 g7 f2 d7 f1Q d5 h4 d6 h3 Nf6 h2 Nf3 c4 Nh5 c3 Ra3 c2 Nc3 b1B Bg5 c1Q Ng3 b2 Rg1 h1Q Nh2 f4 Qa4 Qce1 Rb3+ Qb6 d8N Rh6 d7 Qfe2 Nf7 Rf6 d8N Ne7 g8R Bf5 Nd6 Bg7 Nc4 Bc2 Bh4 b1Q Nb7+ Qd8 Bg5 Qhg2 Bh4 Qh3 Bg5 Bh8 Rg7 Qb6 Nba5 Ng6+ Kd5 Bd3 e5 Nf8 e6 Bh7 Bh4 Bdf5 Bg5 Qb7+ Kd6 Qb6+ Ke7 Qbd1 Bh4 Qb7+ Ke8 Qd6 Bg5 Rg6 Be7 Rg5 Kf7 Bhg6+ Kg8 Ra7 Rf7 Bf6 Rg7 Bh7+ Kh8 Bd4 Nb5 Ba1 Bd8 Qbg2 Rf1 Rf7 Nc3+ Qb7 Rg1 Rf6
1R1NRN2/q3R2N/n3Rr1P/p2Qpkn1/R7/2P2bPr/rb2B1b1/3K3n w - - 0 1 legal: proof: e4 f5 f4 b5 a4 h5 axb5 g5 d4 c5 Qd3 cxd4 exf5 h4 f6 h3 Qh7 Nh6 f5 Ng8 Bf4 gxf4 Qxh3 Bg7 Qh7 Bf8 b4 d5 h4 Kd7 c3 a5 h5 f3 b6 f2+ Kd1 d3 b7 d4 b5 d2 g3 Ra7 f7 e5 b6 Be7 f8R Nf6 Rf7 Ne4 f6 Ke6 Be2 f1B Na3 Na6 b8R Bb7 Nb5 Qd7 Nf3 Bg2 Qg8 Kf5 Re8 Ba3 Ng5 Bb2 Nh7 Ng5 Rfe7 Bbf3 f7 Ra8 f8N Qa7 b7 Rb8 Kc2 d1N Nc7 Nf2 Qd5 d3+ Kd2 Rd8 b8R Rd6 Ra4 Rf6 Rd1 Nh1 Nce6 Nc5 Rf1 Na6 Kd1 d2 Nd8 Ba1 Kc2 d1R Re6 Rd4 Kc1 Rh4 Kd1 Rh3 h6 Bb2 Kc2 Rg8 Rb1 Rg7 Kd1 Rb7 R6e7 Rb3 Rb6 Ra3 Rbe6 Ba1 Rb2 Ra2 Rb8 Bb2
1rB4R/4BRN1/RQ6/PbRn1bp1/1nBqq2p/q4P2/3RrP1k/1b1K4 w - - 0 1 legal: proof: c4 e5 b4 f5 b5 d5 cxd5 f4 d6 f3 b6 axb6 gxf3 b5 Bh3 b4 Bg2 Be7 Bf1 Bf8 d4 g6 h4 Nf6 d5 Ra5 h5 Ng8 h6 Ra4 Na3 Ra7 Nb5 Bg7 hxg7 Ra8 Nd4 exd4 e4 Kf7 a4 Kf6 d7 h5 d6 b5 a5 c5 Nh3 d3 Ra2 d2+ Ke2 b3 Ra3 b2 Rh2 b1B Rd3 b4 Nf4 Kg5 e5 b3 e6 b2 e7 c4 e8B c3 Qb3 c2 Qb6 Nc6 Rc3 Nge7 g8R Nd5 Rc5 Rb8 Rf8 Nb4 Rf7 d1B+ Ke1 Rh7 Bc4 Be2 Rh4 Qf6 d8R Bf5 Bd7 Qd4 Bc8 Rh8 d7 Re8 Rh3 Re3 Rg3+ Kh4 Ne6 g5 Rh8 Re4 d8R Re5 Rg1 Kh3 Rd6 h4 Ng7 Kh2 Rdc6 Bed3+ Kd2 Re3 Rd1 Be2+ Ke1 Re7 Be3 c1Q Rd6 Qcc3+ Rd2 Qa3 Rdc6 Bed3 Kd1 Re6 Ba2 Bb5 Bc4 Qf6 Bd4 Re2 Bc3 Qd6 Bf6 Qf4 Rd6 Qd4 Be7 Bbe4 Qd8 Bd3 Ra6 Bde4 Ba2 Bed3 Qb6 b1Q+ Rc1 Bde4 Bb3 Qbd3 Rc5 Q3e3 Ba2 Bb1 Bc4 Qee4
B1R3q1/RK4qB/1p6/2B2nb1/pr1n2bP/k1b1B1Nn/r1PR2P1/4BQ2 w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 g5 fxg5 b5 axb5 Qd6 b6 Qd5 b7 Qd8 b4 h5 Qxh5 Nc6 b8B Kd7 b5 Nd4 b6 Nb3 b7 Nc5 Nc3 Ke8 Qh7 Na6 Na4 Bf5 Nb6 cxb6 Bg3 Bh3 Bb8 Bc8 Kf2 Kd7 Ke3 Kc6 d4 f5 h3 e5 g6 f4+ Kf2 f3 Ke3 f2 g7 Bg4 d5+ Kc5 d6 Kb4 d7 Nh6 g8B Nc7 Qf7 a5 Qh5 Be7 Bfc4 f1Q Qf5 Ne6 Bd5 Nf4 Bh7 Qg8 d8R Bg5 Rc8 Qe1+ Ne2 Qc3+ Kf2 Ra6 Rd1 e3+ Kg3 e4 h4 Nh3 Qf1 Qcg7 Rd2 Ra8 Bf4 Ra7 b8B Nf5+ Kh2 Ra8 Ng3 e2 Be3 e1B Ba3+ Ka4 Bbf4 Ra7 Bec5 e3 Ba8 e2 Bfe3 Re7 Bcb4 Re4 Bbc5 Rb4 Bb2+ Qa2 Bc3 Ka3 Rdd8 Bf2 Be1 Re8 Rd7 a4 Rad1 Qag8 Ra7 Rd8 Rd2 Rd3 Bf4 Bd4 Be3 Nf4 Kg1 Rb3 Kf2 Rb2 Rac7 Bc3 Ra7 Bh3 Kf3 Ra2 Rd4 Bg4+ Ke4 Q7f7 Ke5 Nh3 Ke4 Qfg6 Ke5 Q8g7+ Kd5 Q6f7+ Kc6 Qfg8 B1f2 e1N Rd2 Nf3 Be1 Be7 Kc7 N3d4 Kb7 Bg5+
2q2Bnr/7B/2rNK1Pb/2Q1RB2/1N1rp3/1B1P1b1N/2b1bnpP/5k1B w - - 0 1 legal: proof: f4 a5 b4 axb4 d3 d5 e3 d4 exd4 c5 dxc5 g5 fxg5 h5 g4 Ra5 a3 Bf5 g6 Bc8 g5 Ra8 a4 Nd7 Ra3 Qc7 Rc3 Qd8 Rc4 Nb8 Rg4 hxg4 Ke2 Kd7 Ke3 Ke6 Ke4 f5+ Kf4 Kd5 c4+ Kd4 a5 b5 a6 b3 c6 b2 c5 g3 g7 b4 g6 b3 a7 Nd7 c7 Ne5 c6 Bb7 c8B Ng4 c7 Bf3 Qc2 Nf2 Be6 Qc8 Na3 b1R Bh3 b2 Bb3 e5+ Kg5 f4 Bf5 Rb8 a8B Rb6 Nh3 Rc6 Re1 Ra1 Bd2 b1B Bb4 Ra2 Qc1 Bc2 Be7 Ra1 Qe3+ Kc3 Qc5+ Kd2 Re3 Re1 Re4 Re3 Bd6 Ke2 Be7 Qd7 c8N Kf1 Nd6 Qc8 Bb7 Nf6 g8B Bh6+ Kh4 Re2 Bh7 Ng8 Bf8 Re3 Ra4 Re4 Ra5 Rd4 Rb5 Ra6 B7d5 Rc6 Ra5 Bfd1 Bh1 e4 Rb5 f3 Ra5 Bb1 Nc2 g2 Nb4 Bbc2 Rb5 Be2 Kg3 Nd1 Kg4 f2+ Kh4 Bf3 Kg3 Bg7 Kf4 Bh6+ Ke5 Ke1 Ng1 f1B Nh3 B1e2 Ra5 Kf1 Rb5 Qc7 Ke6 Qb8 Qc3 Qc7 Re5 Nf2 Qc5 Qc8+
2r5/2K1n1N1/1p1nR1N1/2Qr1n2/2N1Pr2/b1NB1p1P/3PRRb1/kn1N2q1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 f4 e5 fxe5 Be6 g4 Bc8 b4 axb4 Ba3 bxa3 gxh5 Kd7 Bg2 Ke7 Bf1 Ke8 Kf2 Ke7 Kg3 c5 Kf4 g5+ Ke4 f5+ Kf3 f4 Ke4 a2 h3 g4 a5 g3 h6 c4 d6+ Ke6 e3 b6 d7 c3 h7 c2 a6 c1R a7 g2 Kd4 Rc5 Qc2 Nh6 Rh2 Bb7 Bd3 Qg5 Ne2 g1N Rf2 Nf7 d8R Rc8 Na3 Nc6+ Ke4 Bd6 Re1 Rf8 h8N a1N Ng6 Nb3 Re8+ Be7 Qc3 Nbd4 Qa5 Rd8 Qc3 Rac8 a8N Ngf3 Qa5 Qg1 Qb4 Nb5 Nc7+ Kd7 Kd5 Nh4 Nc4 Na3 Qa5 Nb1 Nb5 Ba3 Qb4 Ba8 Qc5 Bb7 Nbd4 Ba8 Nf5 Kc7+ Ke6 Rd4 Nc3 Nd6 Ree2 Kb7 Kd7 Ka6 Ng3 Rf5 e6 Re5 Re1 Nhf5 Nd1 Rde4 Ne2 Bb7 Qd4 Kb5 Qc5+ Ka4 Nec3+ Kb3 Ree2 Rd4 Na4 Ka2 Nac3+ Ka1 e7 Nh4 Rg8 Ree4 e8N Nhf5 Ng7 Re5 Rf8 Nce7 Rf6 Bg2 Re6 f3 Na5 Rf8 Kc7 Rf4 e4 Rd5 Nc4 Rc8+
2nN3Q/1BP1qbN1/2p1Pn1n/4p3/N1r1PrNN/1K1nb1k1/B3b1B1/4R3 w - - 0 1 legal: proof: f4 b5 h4 c5 a4 g5 axb5 e5 hxg5 Qb6 f5 Qe6 fxe6 Ba6 Ra5 Bb7 Ra1 Bc8 b4 Nh6 c4 Bg7 b6 Kd8 b5 Ba6 Ba3 Bf8 Bb4 cxb4 c5 Bc8 c6 Ke7 c7 Ke8 Ra2 Ng8 Rc2 Ke7 Rc1 Ke8 Rc6 dxc6 g4 Ke7 d4 h5 Kd2 f5 Kc2 a5 b7 h4 d5 f4 b6 f3 g6 Kf6 d6 Kg5 g7 Kf4 g5 f2 d7 h3 d8N a4 g6 h2 Nc3 a3 Nf3 a2 Kb3 a1Q Bg2 f1N Na4 Ne3 Re1 h1N Nh4 Nd7 b8N Nd5 b7 N7f6 Nd7 Bc5 b8N Nh6 g8B Nf2 g7 Be3 Bh7 Nb6 g8B Kg3 Bd3 Ba6 Bgh7 Rf8 Bhe4 Rf7 Bd5 Nc8 Qc2 Rf8 Qc5 Rf7 Qf8 Ra7 Bb5 Nd3 Qh8 Qd4 Bbc4 Qc5 Bb5 Qe7 Bdc4 Nfg8 Nf6 Rf8 Ng4 Rf4 Nd7 Nf6 Kc2 Ra8 Ba2 b3+ Kc3 b2 Kb3 b1B Bc4 Nh5 Ndf6 Ra7 Ne8 Nf6 Ng7 Rb7+ Kc3 Rb4 Bb5 Rbc4+ Kb3 Nb4 Ne8 Bg6 Ng7 Bg1 e3 Bf7 e4 Be3 Qe8 Rc2 Bbf1 Be2 Qh8 Bf3 Bd3 Be2 Ba6 Nd3 Bb7 Rc4
N1RBq3/r2nRp2/PP4pR/P2rR2Q/1k4n1/5bn1/qBb1B3/1R2n2K w - - 0 1 illegal: No possible last move
Rq6/PN1N4/p4PN1/2N5/1QK2qr1/RP1R1b1B/N1npqb1k/b3r2r w - - 0 1 illegal: No proof kernel
N5Nb/NN2p3/1B3bRp/bN1nPKPP/3r2Q1/1q2rr2/B7/B4krr w - - 0 1 legal: proof: b4 b5 c4 g5 f3 g4 a4 c6 Ra3 c5 d4 cxd4 Rc3 dxc3 axb5 Qc7 Bf4 Qb6 Bc1 Qd8 Qb3 f5 Kd1 f4 Qc2 Nc6 Qd2 Ne5 Kc2 Bb7 Qd6 g3 Qd1 Ng4 fxg4 f3 Bb2 f2 Bc1 Bf3 gxf3 Bh6 Na3 Bg7 Nb1 Bf8 Kd3 Kf7 Ke4 Kf6 h4 a5 f4 c2 g5+ Kg6 c5 Kh5 f5 Kg4 c6 a4 b6 a3 f6 d6 b7 g2 b8B Kg3 f7 a2 b5 a1B c7 d5+ Kf5 d4 c8N+ Qc7 e4 d3 b6 d2 b7 Bag7 e5 Qc3 Ba7 Rb8 Bb2 c1B Bb6 Qe3 Nc3 Nf6 Nb5 Qa3 Nbd6 Qb4 Ne2+ Kf3 Na7 g1R Nc3+ Kg3 Bc4 Kg2 Ba2 Qb3 Qg4+ Kf1 Ba1 d1R Ncb5 Rd4 Rh3 Rd8 b8N Bd2 Nd7 Nd5 Nb7 Ba5 Nf6 h6 Ng8 Bf6 h5 B8g7 f8N Re4 Rc3 Re3 Rc8 Rh7 Rc4 Bh8 Nd7 Rf7 Rc6 Bfg7+ Ngf6 Nf4 Nb8 Rd4 Na6 Nd5 Kg6 Rf8 Ng8 Rff3 Nac7 Rh1 Re6 Ke1 Rf6 f1R Na8 Rfg1 Re6 Kf1 Rc6 Rfh3 Kf5 Rhg3 Rg6 Bf6 Bc7 Rgh3 Bb6 Rhf3+
r3B2R/2rB1r2/1BB5/Pqp1r2Q/N3bRK1/1pPbPq2/2b3R1/n1k1B3 w - - 0 1 legal: proof: d4 e5 dxe5 a5 g4 f5 b4 axb4 Nd2 f4 Ndf3 Nc6 Ng5 Nd4 e3 Nf5 gxf5 Bc5 e4 Be3 fxe3 h6 Qg4 hxg5 Qd1 g4 Ke2 Ke7 h4 d5 a4 g5 f6+ Ke6 a5 c5 f7 b5 f8R g3 Kf3 b3 h5 b4 h6 g2 h7 g4+ Ke2 b2 c3 b1B Rh2 g3 Kf3 b3 Rh4 d4 Rf7 d3 Rf5 d2 Qc2 d1B+ Be2 Qd3 Nh3 g1R Bd2 g2 Ra2 Qb5 Be1 Ne7 Nf2 Re8 h8B Nd5 Nd3 Bb7 Bf6 Rf1+ Kg4 f3 Rf4 f2 Nb2 Nb4 Bf3 Re7 Qd3 Nc2 Qe2 Rc7 Na4 Na1 Rh8 Bd3 Bd8 g1R+ Bg2 B1c2 Qf3 Kd7 e6+ Kd6 e7 Ke5 e8B Rh1 Bc6 Rh5 Bd7 Rf5 Qh3 Rf7 Qh6 Rh1 Qg6 Rh5 Bh1 Rhf5 Qh5 f1Q Bf3 Rc6 Bb6 Rc7 Bh1 Qf3+ Kh4 Kd6 e5+ Kd5 e6 Re5 e7 Bc6 e8B Bb7 Rf6 Kc4 Rf4+ Bbe4 Rb2 Bb1 Rh2 Bdc2 Rg2 Kd3 Bf2 Kd2 Bg3+ Kc1 Be1 Qff1 Kg4 Bed3 Rg3 Qf2 Bhc6 Be4 Rg1 Bcd3 Rg3 Bbc2 Rg2 Qf3+
1bN4N/1rnbBK1k/n5R1/2r5/P4BQn/BpBN1r2/P3Pp2/b3bB2 w - - 0 1 legal: proof: g4 a5 f4 e5 c4 exf4 b3 d5 cxd5 a4 bxa4 f3 Bb2 f5 Bc1 h5 Na3 f4 Rb1 Qd7 Ra1 Qf5 gxf5 Nf6 Rb1 Ng8 Rb6 Rh6 Rg6 Rh8 Rg4 hxg4 Kf2 Kf7 h4 b5 d4 g5 d6 Kg7 d5 c5 f6+ Kh7 d7 g3+ Ke1 g2 Kf2 b4 d8N b3 d6 g4 f7 c4 h5 c3 d7 c2 h6 Ra7 Be3 c1B Nh3 g1N Nb5 Na6 Nd6 Bg7 f8B Rb7 Qd4 Ne7 N8f7 Nd5 d8B Bd7 Bde7 Bd2 Nc8 Ndc7 Qb4 Rg8 Nh8 Ba1 Rh2 Rg7 Rg2 Rg5 Qc4 Ba5 Ba3 Rc5 Be7 Bb6 Bec1 Ba7 Qd4 Bb8 Qe4+ Kg8 h7+ Kg7 Ng5 Kh6 Ngf7+ Kg7 Ne5 g3+ Ke1 f2+ Kd2 f3 Ke3 Kh6 Kf4 Kg7 Nd3 Kh6 Rh2+ Kg7 Rh5 g2 Rg5+ Kh6 Ng6 Kg7 h8B+ Kh7 Qf5 Nh3+ Ke4 g1B Bc3 Nf4 Nh8+ Ng6 Qg4 Nh4 Bf4 Bh2 Rg6 Bg3 Bg2 f1R Kd4 Rg1 Bf1 Be1 Ke4 f2 Kd4 Rc4+ Ke5 Rg3 Kf6 Rf3 Kf7 Rc5
N3b2Q/4p1n1/bP2N1R1/3p1N1N/1b1q2K1/1NB5/P1n1Pr2/1BnkBbn1 w - - 0 1 legal: proof: g4 a5 f4 g5 fxg5 b5 h4 c5 d4 cxd4 g6 Na6 g7 Ra7 g5 Nb8 g6 Ra6 c4 Re6 cxb5 Re3 Bd2 Re5 Bc1 Rg5 hxg5 Bb7 Bg2 Ba6 Bf1 Bc8 b4 Nf6 b6 Ne4 b5 Nf6 Nd2 Ng8 Rb1 Nf6 Rb3 Ng8 Rb4 axb4 Kf2 h5 Kg3 f5 b7 d3 b6 f4+ Kh4 f3 Nh3 f2 Ne4 d2 Nf4 b3 Nh3 b2 Ng3 b1N Bg2 f1B Qb3 d1N Bd5 Nc6 b8B Nb2 Qb4 Nf6 g8N Nd2 g7 Nd4 g6 Ba6 Be4 Nd3 Bb2 Nc1 Bb1 Nc2 Ne4 Nf3+ Kg3 d6 Nc5 Ng1 Nh6 h4+ Kf4 Rg8 Ng5 h3 Qd4 h2 Nb3 Kd7 Nf5 Kc6 Ne6 Kb5 Qc3 Rh8 g8N Ne8 Kg4 Bh6 g7 Bd2 Nf6 Rh7 Qd4 Bb4 g8N Qd7 Qe5+ Kc4 Nd5 Qd8 Qh8 Ng7 Ba1 Rh3 Bb2 Rf3 Ndc7 Qd7 Nf6 Qd8 Ba3 Kc3 Na8 Qd7 Na5 Kd2 Nb3+ Kd1 Bb2 Qd8 Bc3 Qd7 Be1 Rf2 Bc7 Qc6 Bb8 Qc5 Bc7 d5 Be5 Qe3 B5c3 Qd4+ Kg3 Nf3 Rg1 h1B Nh5 Bhg2 Nhf4 Bh1 Rg2 Ng1 Kh4 Qe5 Rg4 Bf3 Rg5 Bh5 Rg2 Bg6 Nh5 Be8 Rg6 Qf6+ Kg4 Qd4+
4bN1K/R3BnBP/q3P3/kp3n1B/2Qn3b/bP3b2/1NN1B1Bp/4n2b w - - 0 1 legal: proof: f4 e5 c4 d5 cxd5 exf4 Qb3 a6 Qd1 a5 b3 a4 Nc3 a3 Rb1 Ne7 Rb2 axb2 a4 Ng8 g4 h5 h3 g5 Na2 b5 Nc3 h4 Ne4 Rh5 gxh5 g4 Nc3 g3 Na2 Ra6 Nc3 Rg6 Nf3 Nd7 Ng1 Rg4 hxg4 Nb8 d4 Kd7 Kd2 b1B e4 f5 d6 Kc6 g5 Kb6 a5+ Ka6 g6 c5 e5 h3 d7 g2 d5 c4 g7 h2 h6 f3 Ke3 f4+ Kd4 f2 h7 f3 d6 Qe7 d8B Bbf5 d7 Bb1 Be2 f1N Bb2 f2 Qc2 Ne3 Nf3 g1N Na4 f1B Ne1 Nh6 g8B c3 Bf7 Bg2 Bfh5 Qa3 Be7 Qa2 d8N Nf7 Ne6 Bf3 Qd3 c2 Qc4 c1B Nc2 Bh6 Nf8 Bg5 e6 Bcb7 Ba1 Ba3 Nb2 Nh3 Rg1 Nf2 Rg3 Bh4 Rg7 Ne5 Rf7 Nfd3 Rg7 Ne1 Rf7 Ka7 a6 Kb6 a7 Ka5 a8B Bh1 Rg7 Bbf3 Be4 Nf7 Bb7 Bg4 Bg2 Nc6+ Ke4 Bf3+ Kf4 Nd1 Kf5 Nd4+ Kg6 Ne3 Bf6 Ng5 Be7 Nef5 Kf6 Nh3+ Kf7 Ng5+ Kg8 Nf7 Ne3 N7h6+ Kh8 Bbe4 Nc2 Bc6 Bg5 Be8 Rd7 Qb1 Be7 Qc1 Rc7 Qf4 Rb7 Qd6 Ra7+ Qa6 Nd1 Nc6 Bg7 Ncd4 Nb2 Nf7+
1R2N1N1/1PPr1Rnk/1b4Np/6nR/1Pr3b1/2N2Qp1/1n4p1/KB2Nr1q w - - 0 1 legal: proof: g4 e5 d4 g5 h4 b5 a4 f5 axb5 c5 dxc5 fxg4 Bf4 g3 Be3 g4 Bd4 Qg5 hxg5 exd4 Kd2 Kf7 Kc1 Kg7 c4 a5 f4 d5 b4 d3 Kb2 d2 e4 g2 e5 a4 b6 d4 c6 d3 b7 h6 c5 g3 c7 Bd7 c8R Be7 e6 Rh7 c6 Nf6 f5 Bd8 e7 Nh5 g6 Bb6 Qf3 d1R Nc3 d2 Bd3 Na6 Bb1 Nc7 Rb8 Rf1 e8N+ Kh8 f6 d1N+ Ka2 a3 f7 Ne6 f8N Nhg7 Rh5 Nb2 c7 Ra5 Qe4 Bc8 Nf3 Ng5 Ne1 Rc5 Qf4 Bg4 Qf3 Nf5 g7+ Kg8 Ng6 Rc4 Kb3 a2 Ka3 Rh8 Kb3 Kh7 g8N Ng7 Bd3 Bf2 Rd1 a1Q Bb1 Bb6 Rd7 Rh1 Rf7 Rf1 Bf5 Qc1 Ka2 Qd1 Bb1 Qc1 Ka1 Qd1 N8e7 Rg8 Nd6 Rd8 Ne8 Rd7 Ng8 Qd4 Nd1 Qg1 Nc3 Qh1
1RN2Nbr/4Q3/N5Rr/P2P1N1K/R1r2p2/r2n2Pn/N2pn1qp/6Bk w - - 0 1 illegal: No possible last move, all moves rejected
1r1R1B1r/B1Q5/B1n3pN/2Pn2qr/1P1p2PB/1r6/R2pKb2/2k1BRq1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 b3 cxd4 a3 b4 axb4 a5 g4 h5 Bg5 h4 Be3 a4 Nc3 a3 Ne4 Ba6 Ng3 Bb5 Bc1 Ba4 bxa4 hxg3 f4 Kf7 c4 Kf6 h4 e5 a5 d5 a6 a2 h5 d3 h6 g6 a7 d2+ Ke2 g2 h7 e4 Nf3 g1R Ng5 e3 Qc2 Qe8 Nf7 Nc6 Nh6 Rb8 a8R Qe4 Bb2+ Qd4 Bc3 Nge7 Rd1 a1R Ra2 Rg3 Rg1 Rg8 h8B+ Bg7 Rh1 Qe5 Bd4 Rb1 Ba7 Rh3 c5 Rb2 Qa4 Rb1 Qa5 Rh5 Qc7 Rge8 Bg2 Rb3 Rhf1 Qe4 Bh3 Qh1 Bg2 Qh4 Be4 Qg5 Bd3 Ra8 Ba6 Reb8 Ng8+ Kf7 f6 Ke6 f7 Be5 Bf6 Bd4 Nh6 Rh8 Be5 Rab8 Bd6 Kf6 f8B Ke6 Rc1 Kf6 Rc3 Ke6 f5+ Kf6 Kf3 e2 Rd3 e1Q Bg3 Bf2 Bh4 Qa1 Ke2 Qc1 Qb7 Ke5 f6 Ke4 f7 Qa1 Qc7 Qb1 Bg7 Qc1 f8B d4 Rh3 Nd5 Be5 Qc3 Bed6 Qg3 Be5 Qg1 Beg3 Be3 Be1 Bf2 Kd1 Be3 Rhf3 Bf2 Rf7 Ke3 Rd7 Ke4 Rd8 Ke3 Bc8 Kd3 Ba6+ Kc3 Ra1 Kb2 Ra2+ Kb1 Ke2 Kc1
N1NN1b2/1Q1Pn3/pR5p/n7/n3r1K1/B2NpR2/rnRbkP1P/N6r w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 d5 Nf3 b5 axb5 d3 Ng1 d4 g4 f5 Bg2 Qd5 exd5 Bd7 Be4 fxe4 Be3 Bc8 Bc1 Bf5 gxf5 Kd7 Bf4 Kd8 Bc1 Ke8 b4 Kd7 c4 Kd6 f6 Ke5 b6 g5 c5 a6 c6 h6 f7 g4 d6 e3 d7 Kf4 b5 e5 c7 e4 c8N g3 b7 d2+ Ke2 g2 b6 Be7 f8N Ra7 Ra3 Nc6 b8N Na5 Nf3 g1R Qb3 d1N b7 Nb2 Nc6 Na4 b8R Rc7 Nd8 Rc2+ Nbd2 Ra2 Qb7 Bd6 Rd3 Ne7 Nfe6+ Kg4 Nc7 Re8 Rc3 Rd1 Ne1 d3+ Kf1 e2+ Kg2 Kf4 Nb3+ d2 Kh3 e3 Ba3 Rb1 Na1 d1N Na8 Ndb2 Rg1 Bb4 Rc6 Ke4 Nd3 Kf3 Rg5 e1B Rg3+ Ke2 Rc2+ Bed2 Rf3 Rh1 Kg4 Bc3 Qb3 Bg7 Rb6 Bf8 Qd5 Ng6 Qb7 Re4+ Kh3 Ne7 Kg3 Re6 Kg4 Re4+
n7/p3PNKB/8/N1N2P1q/3pp1rQ/2n1k1p1/BP1r2bN/r1B2nRN w - - 0 1 legal: proof: e4 f5 g4 fxe4 a4 h5 gxh5 b5 axb5 Rh6 Nh3 Rh7 Ng1 Rh8 d4 c5 d5 e6 d6 Be7 dxe7 Kf7 Ra4 Rh6 Rc4 Rh8 Rd4 cxd4 Kd2 Kf6 h4 Ke5 c4 Kf4 b6 d5 c5 g5 b7 e3+ Kd3 e5 c6 g4 c7 g3 h6 Bg4 c8B Qb6 h5 Qc6 h7 Nf6 h6 Re8 h8N Bd7 h7 Rg8 Nf7 Rd8 h8N Be6 Nh6 Nbd7 b8N Ne8 Na6 Nd6 Ng4 Nf5 Nc5 Nb6 Nf3 Qe8 Nfh2 Qh5 Nd2 e2 Ndb3+ Ne3 Na5 e1R Nf7 Rf8 Bb7 Rad8 Rg1 Na8 Qa4 Bc8 Ba6 Bb7 Bc4 Bc6 Ba2 Rd1+ Bd2 Ra1 Bc1 Bb7 Bg2 Rd6 Be4 Bc6 Kd2 d3 Kc3 d2 f3 Rdd8 Nf2 Nf1 Bh7+ Ke3 Nh1 Rd6 Qh4 Rd7 Nd6 Rf4 Nf7 d4+ Kc4 Rc7 Nd3 Rc8 Kc5 Bb7+ Kd6 Rc2 Ke6 e4 Nc5 Bc8+ Kd6 Bf5 Ke5 Bh3+ Bf5 Bg2 Kf6 Ke2 Kg7 d1N Bh7 Nc3 Qg5 Rd2 Qh4 Rf5 f4 Ke3 Kf8 Rg5 f5 Rg4 Bd5 Rf4 Kg7 Rf2 Bc4 Rf4 Ba2 Rg4+
6Q1/qbP5/rRrbp1q1/3pRR2/1R1p4/PNK1RN2/rp2P1kn/1N1B4 w - - 0 1 illegal: No possible last move, all moves rejected
3b1n1r/1Rn1bp2/1Qr5/R2P1kNb/n1R3n1/1R1qnPK1/2PBR3/2Bq3B w - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 h5 gxh5 dxe4 Nc3 Qd7 Nd5 Nf6 axb5 Ng8 b6 Qc7 b5 Qd8 Nb4 cxb4 h4 Kd7 d4 Ke6 b7 g5 f3 a5 Kf2 a4 b6 b3 h6 a3 h7 a2 h5 b2 h6 b1N Rh2 g4 Bd2 e3+ Kg2 g3 Be1 e2 Rh5 Na6 b8B Nc7 b7 Ra6 Rc5 Nf6 Qd3 Nd7 Rd5 Rc6 Kh3 g2 Ba7 Nc3 b8R Na4 Rab1 a1B Bd2 e1N Qa6 Nd3 R1b3 N3e5 R8b7 Kf5 Ra5 e6 Kh2 Be7 Qb6 Nf8 Kg3 Qd6 Nh3 g1Q+ Bg2 Qd1 Bh1 Qd5 Bc1 Ng4 Ng5 e5 Bd2 e4 Bc1 Qb5 d5 e3 Bb8 e2 Bd2 Na6 Bbf4 e1N Bc1 Nc7 Bfd2 Rg8 h8R Ng2 h7 N2e3 Rc3 Qd3 Rc4 Rgg6 Rg8 Baf6 h8R Rh6 Rg6 Bd8 Rhg8 Bfe7 Re6 Rh8 Rgg6 Ng2 Re2 N2e3 Rf6+ Ke5 Rd6 Bf5 Rh6 Bg6 Rh4 Kf6 Rb4 Kf5 Rb3 Nf6 Re4 Nfg4 Rc4 Bh5
r1R1N1q1/q1RP1R2/7Q/3r1PRb/Nb2qp2/1K3Pbk/1n1B3r/1b1N1nR1 w - - 0 1 illegal: No proof kernel
3K1nQr/2p3nN/1PB3n1/3Rr3/8/N1Nq1nrb/2PkNNbP/bb1B2B1 w - - 0 1 legal: proof: b4 e5 a4 b5 axb5 h5 g4 g5 d4 Ba6 f4 Bc8 Ra3 Ne7 Rg3 Ng8 dxe5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 a5 e3 f3 g6 f2 g7 g3 b6 g2 b5 a4 b7 a3 b6 a2 e6 a1R e7 R8a3 e8N Ne7+ Kc5 Ke4 g8N f5 Qh5 d5 Qg4+ f4 Ne2 g1N Nh6 d4 Qg3 d3 Qg8 d2 Ng4 d1N Nbc3+ Kf3 e4 Ne3 e5 Qd3 e6 Bg7 Nd6 N3f5 Nc4 Nd7+ Kb5 Nf8 b8N Neg6 e7 Be6 Be3 Re1 Kc6 Bd4 e8B Ng7 Bh3 f1B Nd7 Bg2 Nf2 Rb3 Na3 Be5 Ncd1 Ba1 Nf6 Rc3+ Kb7 Ba2 Kc8 Bb1 Nh7 Rb3 Bd4 Rc3 Kd8 Rb3 Ng3 Re5 Ne2 Rc3 Bhd7 Bh3 Bc5 Rb3 Ndc3 Bg2 Be7 Ke3 Bc5+ Kd2 Bd4 f3 Bg4 Bh3 Bc6 Bg2 Nfd1 f2 Bh5 f1B Nf2 Nf3 Rg1 Bh3 Rg5 Rc5 Rd5 Bhg2 Nfd1 Bh3 Bg1 Bfg2 Nf2 Rcb5 Rd7 Rf5 Rd5 Re5 Nc1 Ne1 Bd1 Nf3 N1e2 Rb4 Bb5 Rg4 Bc6 Rg3
q3b3/q4Q1B/pR1r3r/nNnBr2B/4P1R1/Pp3Kbb/1Pk2qR1/3R1R2 w - - 0 2 legal: proof: f4 d5 g4 h5 c4 g5 cxd5 e5 d3 Be6 Nd2 Bf5 Ne4 Bd7 Nf2 Bf5 fxe5 Bd7 Bf4 gxf4 g5 Bc8 Ng4 hxg4 Kf2 Kd7 h4 b5 e4 f5 g6 c5 g7 g3+ Kf3 g2 h5 b4 h6 c4 d6 Kc6 h7 Kc5 d7 Kd4 e6 b3 e7 a6 e8B c3 a3 c2 Rh3 c1R Rb1 Ne7 g8B Nec6 Bg6 Na5 Ra1 Rc5 Rh2 Re5 Bd5 Bd6 Be2 Qe8 d8R Nd7 Qc2 Nc5 Rf1 Bd7 Rb8 Bc7 Rb5 Rd8 Rb6 Ba4 Rh4 Rd6 Rg4 Qa8 Qb1 Be8 Qc1 Rf8 h8R Rff6 Bh7 Rh6 Rhg8 Bb8 Qe1 Bc7 Qh4 Bb8 Qh5 Bc7 Kf2 f3 Qf7 Bb8 Kg3 f2 Nf3+ Ke3 Nd4 Kd2 R8g5 g1Q+ Kf3 f4 Nb5 Kc2 d4 Bc7 Rd1 f1B Rg8 Bh3 Rf1 Kd2 Rg2 Kc2 R8g4 Nab7 Be6 Na5 d5 Rc6 d6 Qd4 d7 Rd6 d8R Qg1 Rh4 Bb8 Rg8 Qg7 Rg4 Bc7 Kf2 f3 Bd5 Bb8 Ke3 f2 Rg2 Bc7 Bh5 Bb8 Kf3 Bc7 Qf6 Qd7 R8g4 Bb8 Rd1 Qda7 Rd7 Bc7 Rf7 Bb8 Rf8 Bc7 Qf7 Bb8 Ke2 f1Q+ Ke3+ Qe2+ Kf4 Qd2+ Kf3 Rg5 Qc7 Rde6 Kg3 Rgg6 Rff1 Rgf6 Kh4 Qf2+ Kg5 Re7 Qd7 Bg3 Qf5 Rd6 Qf7 Qe2 Kf5 Bh4 Kf4 Re5 Rc6 Qd2+ Kf3 Bg3 Rb6 Qf2+
b1bqB3/3B1Kp1/3qpR2/P6r/q2r2Pk/n2R2RP/2Qb1R1n/N2R2Bn w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 f5 dxc5 h5 exf5 h4 Nd2 Ra4 Ne4 Ra8 Ng3 hxg3 Kd2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g2 a4 d6 c4 b3 f4 b2 c6 b1Q h3 b4 a5 b3 c7 b2 c5 Rh5 c6 Nd7 Nf3 g1Q Be3 Ra6 Nd4 Qa2+ Nb3 b1N Qc2 Qa4 Bb5 Ne5 Ra3 Qh2 Na1 Nf3 Rd3 Nh6 Rhd1 Na3 Bg1 Qg3 Ba7 Nh2 Bg1 Bd7 c8B Rb6 Bb7 Bc8 c7 Rc6 B7a6 Rc4 Bd7 Re4 Bab5 e6+ Kc6 d5 Be8 Ba6 c8R Bb4 Bd7 Bc3 Kd6 Bd2 Rcc3 d4 Rb3 Bc8 Rbc3 Kf7 f6 Kg6 f7 Kf6 f8R+ Kg6 Rf3 d3 Rf5 Rb4 Rd5 Rd4 Rf2 Qg2 f5+ Kg5 f6+ Kh4 f7 Nf5+ Ke5 Ng3+ Kd6 Nh1 f8R Qe4 R8f6 Qh7 Rb3 Qhh8 Bc6 Qc7+ Ke7 Qhd8+ Kf7 Qd6 Rb7 Bg5 Rb3 d2 Rg3 Be3 Rdf1 d1B Re1 Bf3 Rd1 Bg5 Be8 Bd2 Bcd7 Rc4 Rd4 Ba8 Rdd3 Rd4
KN2n1bN/2p1r3/nBQPN1pb/1R2r1P1/1r5R/2R4P/1RrnR3/k1r1q3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Bh3 Rh6 Bf5 Rh8 Bg4 hxg4 Kf2 Ke7 b4 Kd6 d4 a5 e4 f5 e5+ Ke7 e6 Kd6 e7 a4 e8R f3 Ke3 f2 b6 f1R b5 g3 b7 f4+ Ke4 a3 b6 f3 Ra2 g6 Qa4 g2 Nd2 f2 Rb2 a2 Ne2 a1R Nf3 g1R Nf4 Qe7+ Ne6 Qd8 Be3 Bh6 Ne5 Na6 b8N Rg2 b7 Rfe1 h3 Re2 Rc1 f1N Rc3 Rc1 Re7 Ra7 Rh7 Qe8 Nf7+ Ke7 Qc6 Nf6+ Ke5 Nd2 Rb5 Rf8 Nh8+ Rf7 Rb2 Bg7 Rh4 Bh6 Nd7 Ree1 b8R Rb7 Rb5 Rg7 Rb2 Rb3 Rb5 Rb4 Nb8 Rh7 Ng7 Be6 d6+ Kd8 d7 Ke7 d8R Bg8 d5 Rge2 Rg4 Rc2 Ne6 Rec1 Rh4 Ree1 Qc4 Rf7 Kd4 Rg7 Rc8 Kd6 Bg1 Qe7 Rf8 Ne8 Rf2 Re5 Re2 Ra1 Kd3 Rac1 Bb6 Re4 Qc6+ Ke5 Nc5 Qe6 d6 Re7 Ra2 Qf7 Rb2 Qf2 Ne6+ Qc5 Qb7 Bh7 Ra2 Bg8 Rca3 Kf5 Qd5+ Re5 Qh1 Rcb2 Rc3 Qf2 Qd5 Qg1 Qc4 Qg3+ Kd4 Qe1 Bc5 Re4+ Kd5 Re3 Kc6 Re5 Kb7 Rbc2 Rb3 Re3 Ka8 Ke5 Qc3+ Kd5 Rbb2 Ree4 Qf3 Kc4 Bd4 Re5 Ra3 Rc3 Qc6+ Kd3 Rbb3 Kc2 Bb6 Rcc4 Rf3 Kb1 Ra2 R4c2 Rb2+ Ka1 Rd3 Qd1 Rc3 Qe1
b1KQ1r2/6nN/nbp3kq/NNPBp1B1/1P1P4/B3Nn2/NRb1br2/2b5 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 g4 Qd6 f4 Qd8 e4 h6 exd5 gxf4 g5 h5 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Ke2 f5 Kd3 Kf7 Kd4 a5 Kc5 e5+ d6 a4 h4 a3 c4 g3 b6 f3 g6+ Kf6 h5 f4 h6 a2 h7 a1B g7 g2 b7 f2 Ne2 g1N Rh2 f3 Na3 Ne7 g8N+ Kf5 d7 Kg6 Nh6 Bc3 Bg2 f1B Ng4 f2 Bd5 Kg5 Nb5 Nf3 Ne3 Bh6 Ba3 Rf8 h8N Nf5 Nc1 Ng7 Nf7+ Kg6 Na2 Qg5 d8B Na6+ Kc6 Bd4 b8N Bb7+ Kd7 Be2 Nc6 f1B Na5 Bb6 c5 c6 d3 Qf6 Ng5 Rf7+ Be7 Raf8 Nh7 Ba8 Qd2 Qf4 d4 Rf5 Bg5 Bd1 Qe1 Bfe2 Qh4 Bc2 Rf2 Ne8 Kc8 Ng7+ Bd8 Qh2 Qe7 Bf4 Qe8+ R5f7 Bg5 Qh6 Qd8 Rf6 Rf1 Rf5 Rb1 R5f7 Rb2 Rf6 Nec4 Bc1 Ne3 Nd2 Bg2 Rf2 Bd5 Nf3
2RQ4/RrqRpb1N/Pb2PR1p/r1rbR3/k6K/1nP1n3/2N4N/4Bnn1 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 g5 hxg5 Kf7 b4 Ke8 e5 axb4 Bd3 c5 Be4 fxe4 dxc5 Bh6 Nd2 Bg7 Nb1 Bf8 f4 b5 Kf2 d5 Kg3 Kd7 a4 Kc6 f5 e3 a5 b3 g6 b4 f6 Kb5 c3 e2 c6 e1N g7 h6 e6 b2 f7 b3 c7 d4 Na3+ Ka4 Ra2 b1R Rb2 d3 Nc2 d2 Kh4 Na6 g4 Nc5 g5 Bb7 c8R Qc7 g6 Nf6 g8R Bd5 g7 Nh5 Nf3 Ng3 Rg1 Nf1 Nh2 Ra7 Rg6 Nf3+ Kh5 Ra6 Rf6 Ng1 Kh4 Ra7 Rd8 Rb7 a6 Ra1 Rb1 b2 Rd7 Ra3 Ra1 b1B Ra2 Nb3 Rb2 Nd4 Rb5 Nb3 Rc5 Bc4 Re5 Bd5 Ne1 Bg6 Nc2 Rh7 Rh8 Bh5 g8R Bg7 f8N Bf7 Ng6 Ra1 Ra8 Ra3 Rhf8 Rh8 Ra7 Ra1 Rfa8 Rc8 Nf8 Ra3 Nh7 Ra2 Qe1 d1N Bd2 Nde3 Qg3 Bh8 Qg8 Ra3 Be1 Ra1 Rg6 Bg7 Qd8 Bf6+ Reg5 Bd4 Rf6 Bb6 Rgf5 Qd6 Rh5 Rc5 Rc8 Qc7 Rhf5 Kb5 Rh5 Ra5 Re5 Ka4
R3q3/Qq3k2/6nq/N2R3p/b1rR1P1P/B1qpqN1P/1Rnr1b1N/1R5K w - - 0 1 illegal: No proof kernel
kb2NqN1/r4r1B/4bKNN/4pB2/n1q1PR2/bPn1q1B1/1P1pQ1qN/8 w - - 0 1 illegal: No possible last move, all moves rejected
BKN1b1R1/3N4/5bpn/nq1qp1NB/4PBPB/2n1Pr2/Q5nr/1B1kr3 w - - 1 2 legal: proof: a4 a5 b4 axb4 d4 h5 e4 c5 dxc5 h4 g4 Qc7 Ra3 Qf4 Rg3 Qe3+ fxe3 hxg3 Kd2 e5 Kd3 Ke7 Kc4 d5+ Kb5 f5 Kb6 b3 Kc7 b5 c4 d4 h4 f4 a5 f3 h5 f2 c6 d3 a6 g2 c5 d2 a7 b2 h6 b4 h7 b3 Rh4 Nh6 Nf3 g1N Qc2 d1Q Nbd2 b1Q Ng5 b2 Bd3 f1R Nb3 Bd7 Bd2 Rf3 Be1 Nh3 Bg3 Be8 Bf4 Kf6 Kb7 Be7 c7 Nc6 c8N Na5+ Kc7 Kg6 c6 Bf6 Nc5 Rb8 a8B Rb5 Be2 Qd5 Bd3 Qf1 Qe2 b1N Qa2 Nc3 Nd7 Rb1 Rh5 Re1 Kb8 Qe2 c7 Qf1 Bb1 Qa6 Bh2 Nf4 Bg3 Ng2 Bf4 Rf8 h8B Qab5+ Ncb6 Rh3 c8B Rh2 Bcb7 Be7 Bc6 Rf6 Bg3 Rf3 Bf4 Bf6 Nh3 Kf7 Rg5 Ke6 Rg6 Kd6 Ng5 Qdb3 Bd5 Qd1 Bf7 Qdd5 Nf8 Kc5 Nd7+ Kb4 Nh7 Qbd3 Nc8 Q3c4 Rg5 Qcd3 Bh5 Qf1 Rf5 g6 Ng5 Be7 Rf7 Bf6 Rf8 Qfd3 Rg8 Qe2 Qa1 Kb3 Qa4+ Kb2 Qa2+ Kc1 Bg7 Qf1 Bf8 Kd1 Be7 Qa6 Nh3 Bg7 Bh4 Bf6 Ng5 Qab5+
2R4n/4R3/b1B3qB/BRppK3/2PBr1PP/kbQN4/2n1bn2/2b1q1rB w - - 0 1 legal: proof: f4 b5 d4 h5 a4 g5 axb5 h4 Nc3 e6 Ne4 e5 dxe5 gxf4 g4 Rh7 Ng3 hxg3 Bd2 Rh5 Bc1 Rh8 Kd2 Ke7 Kd3 f5 Kd4 d5 b4 a5 e4 a4 h4 f3 c3 f2 e6 Kd6 e7 a3 e8R a2 b6 g2 b5 f4 b7 f3 b6 Nd7 b8B Nc5 b7 Ne7 Rh2 Bh6 Bd3 f1B Qc2 f2 Qb3 Ng6 Re7 Qe8 Ne2 g1Q Rb1 a1N Nf4 Rf8 Ba7 Nh8 b8B Qg6 e5+ Kc6 e6 Be2 Rb2 f1B+ Ke5 Ba6 Be4 Nc2 Bh1 Ne4 Nd3 Nf2 Bd4 Rf4 c4 Bd1 Qc3 Bfe2 Rb5 Qe1 Re8 Ra7 e7 Rb7 Rc8 Rb6 Ra5 Rb1 Rh3 Bg5 Re3 Bh6 Rc5+ Kb6 Ra5+ c5 e8B Ra1 Bc6 Bg5 Ra4 Rb1 Rb4+ Ka5 Rb5+ Ka4 Re4 Bh6 Bce3 Rc1 Bc7 Bg5 Qd2 Ka3 Bd8 Na1 Bc7 Bb3 Qc3 Nc2 Bd8 Qd2 Ba5 Rg1 Re8 Qe1 Re7 Rf3 Rf4 Bh6 Rf8 Rf4 Rc8 Rf6 Bf4 Bg5 Bh2 Bc1 Bf4 Rf7 Bg5 Rf4 Bh6 Re4+
1k4r1/3q2nn/n1p5/b2pr1RR/1P3rK1/B1P2Q1R/BPbnR1R1/3NB2q w - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 h5 h4 hxg4 Qd3 b4 c3 b3 axb3 g5 Nd2 f5 Ne4 f4 Ng3 fxg3 e4 a5 Ke2 d5 f4 Kd7 h5 g2 f5 g3 Kf3 a4 f6 c6 f7 Kc7 h6 a3 e6 g4+ Kf4 a2 e5 Ne7 h7 Qd7 Nh3 g1N Qf5 g2 Bd2 g3 Rc1 a1Q Be1 Nf3 Rc2 g1R Nf2 g2 Bc4 Nd2 Nd1 Na6 Rh3 Rf1+ Kg4 g1N Qf3 Nf5 e7 Kb8 e8R Bb4 f8B Ng7+ e6 Ba5 Ba3 Rg8 h8R Rf2 R3h5 Nh3 b4 Ng5 Ba2 Nh7 Rf8 Re2 Rff5 Re5 Rfg5 Rf8 Rh3 Rff5 e7 Nf8 R8h5 Nh7 Bh4 Qc1 Nf2 Qh1 e8R Nc7 Re6 Ba6 Bg3 Bd3 Nd1 Na6 Reg6 Ka7 Be1 Rg8 Kh4 Kb8 Rg2 Ne4 Rce2 Nd2 Kg4 Bc2 Rgg5 Rf4+
2B1R3/3bNK2/R1R2RP1/2p1NQ2/5R1r/np1N2b1/n1Pkb1P1/2q1rqnn w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 hxg5 Ra4 Bd2 Ra7 Bc1 Ra8 e4 f6 e6 Bd6 e5 Bf8 e7 Kf7 Be3 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Kd2 Kd5 Kd3 b5 e8R c5 f4 h5 a4 h4 a5 h3 e7 b3 g6 b2 f5 e4+ Kd2 Kd4 f6 d5 f7 h2 a6 b4 a7 b3 Bc4 Rh4 Nc3 b1N+ Kc1+ Ke3 Kb2 d4 Na4 d3 Ba6 d2 Nf3 Bd7 Qf1 d1B Bc8 Na6 Ne5 Nh6 Qf5 Be2 Rf1 h1N Rf4 Na3 Kc3 Ng4 Nb2 Nh2 Nbd3 Nf3 Ra2 Bh6 f8R Nb4 Rf6 Ng1 Ref8 Qb6 e8R Qb5 Rc6 Rb8 a8N Bg7 Kb2 Kd2 Nb6 e3 Nd5 Qc4 Ra1 Na2 Ne7 Bh6 Rff6 Qf7 Ra4 Bf4 Rf1 Qc4 Raa6 Bg3 Rf4 Qf7 Ne1 Rb4 N1d3 Re4 Qg4 Kd1 Rfd6 Bf3 Rf5 Nc1 Kc3 e2 Qh3 Bg4 Rf3 Qf4 Rf6 Qe3 R3f4 e1Q+ Kb2 Qf1 Kc3 Bh5 Qf5 Na2+ Kb2 Nb4 Kc3 Qc1 Rfe6 Re1 Rf6 Nb5+ Kc4 Na2 Kd5 Be2 Rc7 Bc6+ Ke6 Na3 Kf7 Bd7 Rcc6 Kd2
b1r5/n2B1Q1p/b2qPR1P/2pN2NN/4r3/RPK2nb1/2NR1b1r/4N1kr w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 Kb2 Ke7 g4 Kf6 h4 Ke5 d4+ Ke4 b6 Ke3 h5 f5 d6 c5 d5 a5 h6 f3 g5 a4 d7 f4 b7 a3+ Kc3 a2 g6 Qb6 d8R Nd7 b8N Bb7 g7 Ne7 g8N Qd6 Bh3 f1R Na3 Kf2 e4 Nc8 e5 Na7 Ne7 Re1 Nc2 Re4 Qd3 Rg8 Qc4 Rg2 Rh2 Bg7 Rf8 Bf6 Be6 Bh4 Rf6 Bg3 Bg4 Nf8 Be6 Ng6 Nd7 Rc8 Bf5 Nh4 Bh3 Qb8 d6 Ba8 Qf7 Qb6 Nd5 Qa6 Rb1 a1B+ Rb2 Kf1 Bg4 f2 Nf3 Qc6 Nfe1 Kg1 Bf5 f1R Bh3 Rd2 Bg4 Rdd4 Rd2 f3 Qe8 f2 Rf5 Rc4+ Kd3 Kh1 N7f6 Qc7 d7 Qd6 d8N Nf3 Ne6 Re2 Qf7 Rg1 Ra2 f1B Ra3 Rce4 Ng5 Bd4 Nh5 Kh2 Kc4 Rh1 Rf6 Kg1 Bd7 Be3+ Kd3 Reh2+ Kc3 Bef2 e6 Ba6
1RNR1bKB/5bNN/1pqrprn1/R2N2n1/P2P4/2p1N1Q1/2P1k3/3n2br w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 exd5 g6 f5 Bd7 Be2 Be6 fxg6 Bd7 g5 Bc8 Bg4 hxg4 Kf2 Kd7 Ke3 Kd6 Kd4 f5 h4 g3 h5 c6 h6 g2 g7 b3 h7 b2 g6 b6 Na3 b1R Ne2 f4 Nc3 f3 Qe1 f2 Bb2 Nf6 g8N f1N g7 Nbd7 Qg3+ Ne5 Nc4+ Kc7 a4 g1B+ Ne3 Kd6 Rh5 Ne4 Nf6 Rd1 g8N Qc7 d3 Rd2 Rd1 Ng5 Ba1 Bd7 Bb2 Qc8 Ba1 Kc7 d6+ Kb7 Ncd5 Be8 d7 Ng6 Kc4 c5 d8N+ Ka6 Bc3 Qc6 Ne6 Ra7 Ng7 e6 Nge7 Rb7 Ba1 Ka5 Nc8 Rf7 Kc3 c4 Kd4 Rf2 Bb2 Rd7 Ba1 Rd6 Rd2 Rg8 h8R Rh2 Nh7 Rh1 Nf5 Rg7 Rd1 Rf7 Ng7 Rf6 Rg8 Nd2 Bb2 Nde4 Rh8 Ne7 Ke5 Nc3 Rd2 Rh6 Rg8 Ng6+ Kf6 Nd1 Nc7 Kb4 Ncd5+ Kc5 Be5 c3 Rh8 Nh3 Rf5 Bd7 Kf7 Be8+ Kg8 Ng5 Rf7 Nh4 Ra7 Rf6 Ra8 Ng6 Rb8 Rf5 Rf2 Rf7 Rf5 Rf6 Nf4 Kb4 Nfd5+ Ka3 d4 Kb2 Qe1 Kc1 Qg3 Kd2 Nb4 Bd7 Nh5 Be7 Kg7 Ke2 Rd8 Rf7+ Kg8 Bf8 Bh8 Rf6 Ra5 Be8 Nbd5 Qd7 Ng7 Qb7 Nce7 Qc6 Nc8 Bf7#
1b1N1Q2/NKp1qNbR/p4qr1/Rnn4P/P2r3k/2R1r3/2PN1p2/1q1B1N2 w - - 1 2 legal: proof: g4 e5 a4 b5 e4 h5 d4 hxg4 dxe5 b4 f4 Bc5 b3 Bf8 Ba3 bxa3 f5 Bb7 Nh3 Bd5 Ng1 Be6 fxe6 Rh7 Bg2 Rh4 Bf1 Rh8 Kd2 Ke7 Kd3 f5 Kc4 d5+ Kb5 g5 h4 a2 b4 d4 Ne2 f4 Ng3 d3 Be2 d2 Nf1 Nc6 Ka6 f3 b5 g3 b6 g4 b7 g2 b8N g1B Kb7 Nd4 Nc6+ Ke8 e7 Kf7 e8N Kg6 e6 Kh5 e7 a6 e5 g3 e6 g2 Qc1 d1Q Nd6 Nb5 e8N Ba7 e7 g1R Nf7 Bb8 Ned6 Rg6 e8R Bg7 Na7 Nf6 Nbd2 Ne4 Qa3 Qb1 Bd1 Qe7 Nd8 Rh7 N6f7 Nc5+ Kc8 Rhh6 Rh8 Rd6 Rh7 Rd4 Rh3 Kg4 h5 Rg6 Rg3+ Kh4 Rg5 f2 Rd5 Qb2 Rb1 Qc3 Rb3 a1Q Rf5 Qf3 Rc3 Qb1 Re5 Qff6 Rg5 Nd3 Qd6 Nc5 Rf5 Qe2 Qf8 Qee7 Nh8 Qee5 Ne3 Nd7 Kb7 Na3+ Nb5 Ba7 Ne6 Re8 Nd8 Bb8 Nhf7 Qc5 Nef1 Re3 Rd5 Qce7 Re5 Nb6 Na7 Nd7+ Rb5 Nc5+ Ka8 Nd3 Ra5 Nb5 Kb7 Nc5+
q2q1bn1/Pp1r1NB1/1pBN1p2/8/1qBn3K/r1R2P2/b1Nk2NP/2bN1Q2 w - - 0 1 legal: proof: c4 h5 b4 d5 cxd5 Be6 g4 Bd7 b5 Bc8 b6 axb6 gxh5 e5 a4 Qd6 d4 Qd7 d6 Nc6 d5 Nb8 Ra3 Qe7 Rd3 Qd8 Rd4 exd4 e4 Kd7 e5 g5 a5 c5 h6 d3 e6+ Ke8 d7+ Ke7 d6+ Kf6 h7 Kf5 f3 c4 Kf2 f6 Kg3 g4 a6 d2 e7 c3 e8B c2 a7 Ke5 Nh3 Kd4 Kh4 Ke3 Nf4 g3 Ng2+ Kf2 Bc4 Nc6 Nc3 Nd4 Ba3 Qe7 d8N c1B d7 Qb4 Nf7 Rb8 d8N Be6 Beb5 Rc8 Nc6 Rc7 Re1 Rd7 Re3 Bd5 Qh1 d1Q Nd6 Bf7 Rd3 Qd2 Nd1+ Ke2 Rb3+ Qd3 Qg1 Kd2 Qf1 Be6 Rc3 Bd5 Nge3 g2 Ba4 g1Q Ng2 Qge3 Bab5 Qe8 Ba4 Qbb1 Nb4 Qa8 Nc2 Qb4 Bc6 Be6 Ba6 Ba2 Bab5 Nh6 Bc4 Rg8 h8N Rg5 Nhf7 Ra5 B4b5 Ra4 Bc4 Ng8 Nc8 Qa5 Be7 Qb4 Ncd6 Bh6 Bf8 Ra6 Bg7 Ra3 Bh8 Bf8 Bg7 Qe4+ Nf4 Qee8 Ng2 Qed8
4b3/bb3n1k/1P2p1N1/KpBN1n2/P1qn1BBB/1pN2bQ1/1Pr5/r4BR1 w - - 0 1 illegal: No proof kernel
2Rr1rN1/2ppp3/Q1b3P1/b1P2q1P/1rKbkN1n/Nn1NN1R1/3r4/BR6 w - - 0 1 illegal: No proof kernel
Q1b5/p3nbR1/PN1qq3/2q2R2/2Np2Pk/Rr1P1KR1/rqR1n1p1/2BN4 w - - 0 2 legal: proof: f4 f5 g4 fxg4 b4 c5 bxc5 e6 f5 Bd6 f6 Qc7 Bg2 Qd8 Be4 Bf8 Nh3 g5 Bd3 g3 Ng1 g4 Nf3 g2 Bf5 exf5 Kf2 g3+ Ke3 g1Q+ Kd3 g2 Kc4 Bd6 Kc3 Bg3 hxg3 Kf8 Nd4 Kf7 Nf3 Ke8 Kd3 Kf7 a4 Kg6 e4 h5 Ke2 b5 c4 d5 e5 f4 c6 b4 d3 h4 c7 Kh5 e6 h3 c5 h2 c6 b3 a5 b2 f7 Ne7 f8R Qc5 a6 Qdd6 Nc3 b1B Ne5 Ba2 g4+ Kh4 Kf3 Rh5 Rf5 Bb3 Rf1 h1Q Ra3 Qhg1 Qc2 Qgd4 Nd1 Qb2 Nc4 Rg5 Rf7 Re5 Rg7 Re4 Na5 Ra4 Nc4 Ba2 Qb3 Ra5 Qb7 Bb3 Ra1 Ra2 Rf2 d4 Rc2 Nd5 e7 Nc3 e8R Ne2 Rf8 Qe6 Rf5 Qed6 Nce3 Bf7 Nc4 Nd7 Qb8 Nb6 Qb7 Rb8 Qa8 Ng3 Re2 Nd5 Re7 Rb3 Re3 Raa3 Ra2 Ne7 Ra1 Ra4 Ra2 Ne2 Ra3 Bce6 c8N Ra5 Ra1 Ra2 N8b6 Bc8 c7 Qe6 Kf2 Qed6 Rg3 f3 Na3 Bd7 c8R Qe6 Rc7 Bc8 Rc6 Qcd6 Rc2 Qc5 Nac4 Qed6 Ke1 f2+ Kd2 Raa3 Ra2 f1Q Ra1 Ra5 Ra3 Qff4+ Ke1 Qe4 Kf2 Qee6 Kf3 Rbb5 Rac3 Ra2 Ra3 Rb3
q1b2B2/4R1p1/1P2rBk1/BN2np1q/K1N1qQP1/1q6/1Bp2Pr1/1Nnb3B w - - 0 2 illegal: No proof kernel
5Q2/Kn2B2P/pN2qB1B/R1pNnBB1/N4p2/1r1q1rq1/P1P2k2/1b2q1b1 w - - 1 2 illegal: No proof kernel
r1nKN3/n2r2N1/B2p1p2/r1b3nb/k4bp1/3PrPN1/N5QP/1RR2N1R w - - 0 1 legal: proof: c4 b5 b4 h5 a4 Bb7 axb5 Bc6 g4 hxg4 b6 Bb7 b5 Bc8 b7 Rh6 Ba3 Rh5 Bc1 Rh8 b6 e5 d3 e4 Kd2 e3+ Kc2 Qg5 Bd2 Qb5 cxb5 exd2 Kc3 g5 Kc4 a5 Kd5 c5 e4 c4 f3 a4 e5 g3 e6 g2 e7 c3 Kd6 a3 Kc7 f6 Ne2 g1N Qa4 d1R Qg4 c2 Ng3 c1B Nd2 a2 Bh3 Rh7 Ndf1 Nc6 b8R Na7 b7 Re1 b6 Re3 Rb1 Bd2 Rd1 a1R Rc1 Kf7 e8N Ke7 Ng7 Ra5 N7f5+ Ke6 Ng7+ Kd5 Kd8 Bc5 Qc4+ Kc6 Qa2 Bb4 Qg2 Kb5 Be6 g4 Bc4+ Ka4 Ba6 d6 Rb1 Bf5 Rc8 Re7 b8N Bd2 b7 Nh3 Nc6 Bf4 b8N Ng5 Nb4 Bg6 Na2 Bh5 Rc7 Re3 Rc6 Ba3 Rcc1 Bc5 Bc4 Nc8 Na6 Nge7 Nc7 Na7+ Rb8 Ra6 Nce8 Nec8 Rbb1 Ra5 Bb5+ Ka3 Ba6 Ka4 N7f5 Rb7 Nfg7 Rd7+
1B4n1/1bK3bN/3p2rn/3B3N/1P1N2Q1/k2p2pq/2Bpb1PP/2R1qrNN w - - 0 1 illegal: No proof kernel
R3B3/b2Nqp2/B1n2B2/Bp1P3Q/p1Pn1np1/Pr2q2b/5Br1/2k1N1KN w - - 0 1 legal: proof: e4 g5 b4 c5 bxc5 h5 f4 d6 g4 Bf5 a3 gxf4 g5 d5 exd5 Bh3 Ra2 Qb6 Rb2 Qc7 Rb3 Qd8 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 h4 a5 d4 e5 h5 e4 h6 b6 d6 Kc6 d7 Kd5 h7 f3 g6 a4 g7 Ne7 g8N Ng6 c6 Be7 c7 Ba6 c8B Nf4 Bb5 Nc6 Be3 Bc5 Ne2 Rb8 Kg1 Qe7 Bf2 e3 Ng3 e2 d8B e1N Nd2 Qe3 c3 Nc2 Rh2 Bb7 Nh1 Ba8 Bca6 Qe7 Nb3 Ke4 c4 Bb7 Qa1 Kd3 Nc1+ Kd2 Nd3 Qe3 Ne1 Qe7 Qa2 Kc1 Nf6 Ba8 Bg3 Rb7 Re2 Rb8 Nd7 f2+ Kh2 f1Q Bf2 Qh3+ Kg1 Qh6 Qb3 Qhe6 Qh3 Qe3 Qh5 Ne5 Bc8 Bg2 d5 Nd4 Bca6 Bh3 Bc7 Nec6 Rb2 Rhg8 h8B Rg6 Bf6 Rh6 Qg5 Bf1 Re2 Rh2 Qh5 Bh3 Ne5 Na7 Be8 Nac6 Bd8 b5 Ba5 Ba7 Bd7 Rh8 Be8 Rh7 Nd7 Bg2 Qg5 R7h3 Qh5 Rf3 Qh8 Bh3 Qh5 Qd2 Re6 Rb3 Re5 Qe3 Re6 Nb4 Rb6 Nbc6 Rb8 Q3e4 Rd8 Qe3 Ra8 Rg2+
B3b2B/k2pKnr1/2pN3r/1q2b1B1/PpN1N1q1/2nR4/NPpn1P2/N1Q5 w - - 0 1 illegal: No proof kernel
1r4br/5R1p/2pP1p1q/P2rp2k/3B2NP/2QB4/BR1BR3/Br1K1nbn w - - 0 1 illegal: No possible last move
B2k4/2bP3B/5n1p/Pp1rBp2/b1p2NRp/1Q2nN2/K1P1B1qr/1B4nN w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 gxh4 b4 a5 bxa5 Qf6 Ba3 Qe7 Bc1 Qd8 a4 d5 e4 Bc5 e6 Ba7 e5 Bc5 Ra3 Be7 Re3 Bf8 Re4 dxe4 d4 c5 Kd2 f5 Kc3 b5 Kb3 h6 g4 e3 a6 e2 a5 e1N d5 Nf3 g5 Nf6 g6 Nh5 a7 Nf6 g7 Ng8 e7 Ne1 d6 Bb7 d7+ Kf7 e8B+ Ke7 e6 Qb6 Be2 Nf3 Bg6 Qc7 Bf4 Nf6 g8B Qd8 Qd5 Nc6 Be5 Rc8 a8B Nb4 Nh3 Ng1 Nf4 Rc6 Nd2 Rd6 Qf3 Nbd5 B6h7 Ne3 Ka2 Rd5 Qh3 Qc7 Nf3 Qc6 Rh2 Bg7 Rg2 Kd8 Rg4 Bf8 Bf7 Bd6 Qg3 Rg8 e7+ Kc7 e8N+ Kd8 Ng7 Bc7 Ngh5 Re8 Bd6 Re4 Be6 Red4 Be5 Rd2 Bd1 Rh2 Be2 Rd4 Bb3 Qe4 Qh3 Bd5 Ng3 Be6 Nh1 Rd5 Kb2 Bg8 Ba2 Bf7 Bb1 Bg8 Ng5 Qg2 Qg3 Rd4 Qh3 Bb3 Nf3 Ba4 Ka2 c4 Nd2 Nf1 Qb3 Ne3 Nf3 Rd5
3k1r1Q/1b4PQ/pb2P1K1/R5br/1P2N1QR/b1B2b2/2Bbb3/2Q1r1Q1 w - - 0 1 legal: proof: c4 e5 d4 b5 f4 bxc4 a4 d5 e4 Ne7 exd5 e4 d6 Qd7 d5 Qb5 axb5 Ng8 h4 g5 g4 Bf5 h5 Nc6 Nc3 Bd7 Nce2 Ne5 fxe5 Bc8 Nf4 gxf4 g5 Ne7 Be2 Rg8 Bf1 Ng6 hxg6 Rh8 Ke2 f5 b4 h5 b6 c5 d7+ Kd8 g7 e3 Kf3 a6 g8Q c3 e6 c2 b7 e2 b8Q e1B g6 h4 g7 c4 Nh3 c3 Ra4 Rh5 Qh8 Bd2 Ng5 h3 Qh7 h2 Bd3 Bc5 Ra5 Bb6 Bb2 c1B Qg1 c2 Bc3 Ba3 Ne4 c1B Qd6 Rb8 Bc2 Bb7 Qdc5 Ra8 Qg4 Rc8 Qcg1 Ra8 Kg2 f3+ Kg3 f2 Kf3 f1B Kg3 f4+ Kf3 Kc7 d6+ Kc6 d8Q Be2+ Kg2 f3+ Kg3 f2 d7 f1B Qdg5 Bg2 d8Q Bgf3 Qdh8 Kc7 Qgh6 Rf8 Qhe3 Rg5 Kh4 Kd8 Qef4 Rf5 Qfh6 Bg5+ Kh5 Bcd2 Kg6 Bf6 Qhe3 Bg5 Qc1 Rc5 Rd1 h1R Qeg1 Re5 Rf1 Rh4 Rf2 Rh3 Rh2 Rh5 Rh4 Bf1 Nf6 Re1 Ne4 B1e2
1bN2q1r/5QNq/nN2NQ2/1b3B1R/b1PPr2P/3r1q1b/k2nR2N/6K1 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 axb5 e5 g4 exf4 gxh5 d5 Bb2 d4 bxc5 Qe7 c4 Qd8 Bc3 dxc3 Kf2 Ke7 e4 g5 h4 a5 d3 f5 c6 Kd6 h6 Kc5 d4+ Kb4 b6 c2 e5 Kb3 b7 f3 e6 f4 c7 a4 h7 a3 e7 a2 e8N g4 Ng7 g3+ Ke1 g2 Kf2 Na6 b8N Nf6 Nh3 g1Q+ Ke1 f2+ Ke2 f3+ Ke3 Bd7 c8Q Bd6 Bd3 Qg2 Re1 f1B Re2 f2 Bf5 Ne4 Qb7+ Bb5 Ng5 Qf8 Qf7 Nd2 Nd7 Re8+ N5e6 Bb8 Nb6 Qb7 Qc1 Bh3 Qf1 c1Q Qf6 Qca3 Qf7 Rg8 h8N Qae7 Ng6 Rh8 Qf6 Bg2 Qf7 Bgc6 Qf6 Qef7 Ne7 Qg6 Nec8 Qh7 Na3 Ba4 Nc2 Bcb5 Ne1 Ka3 Rb1 a1R Nf3 Ka2 Rb3 Rd1 Nh2 Bc6 Rb5 Qa8 Qg2 f1B Qd5 Bh3 Kf2 Qb7 Rc5 Bcb5 Qd7 Qh1 Qdf7 Qa8 Ng5 Re4 N5e6 Rb1 Re5 Rb3 Kg1 Qb7 Bg4 Rd3 Rh5 Qc7 Bf5 Qg3+ Kh1 Qf4 Kg1 Qf3
2N5/1bb1r2K/r1bBQ3/k1P1B1qP/6nB/2P1BNRn/q2Q1b2/nn4B1 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 b4 h6 g4 Qc7 f4 Qa5 f5 Qd8 Ra3 Ba6 Be2 Bc8 Rf3 h5 Rf4 gxf4 g5 Rh7 Bf3 Rh8 Bg4 hxg4 Kd2 e5 Kd3 a5 Ke4 d5+ Kd3 Kd7 h4 Kc7 f7 g3 h5 e4+ Kd4 f3 Ke5 e3 f6 e2 g6 e1B g7 d4 Ba3 g2 Bc1 d3 Nd2 f2 Ne4 f1N Nd6 a4 Be3 d2 Nf3 g1N Rh3 a3 Rg3 Bb7 Kf5 a2 Kg6 a1Q Nc8 Bd6 f8B Nh3 f7 Bf2 Be7 Na6 f8B Nf6 g8Q Ng4 Qe6 Qa2 b6+ Kc6 c3 Kb5 Bg7 Re8 Kh7 Bc7 Bh4 Qg5 Bgd4 Ra7 Qc2 d1B Qd2 Bb3 Be5 B3d5 B5d4 Ka4 b5 Nb4 Be5 Bbc6 b7 Ka5 b8B Ra6 b6 Nc2 b7 Na1 B5d4 Bb6 Bbf4 Bc7 b8B Bb7 Bd6 Bdc6 Qe1 Nd2 B4e5 Nb1 Qd2 Be1 Bg1 Bf2 Bf4 Qb3 Be3 Qa2 Be5 Bd8 Bbd6 Bb6 Qe1 Bc7 Qd2 Re7+
1Q6/bQ5r/PR1KNq1P/kb2Q1r1/nqP1NBQ1/2Q3r1/1b2r1n1/4B1b1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 g4 h6 a4 Qc7 f5 Qd8 Ra3 Rh7 Bh3 Rh8 Rf3 h5 Rf4 gxf4 g5 Qc7 Bg4 hxg4 Qf3 Qb6 Qd1 Qd8 Kd2 e5 Kd3 b5 Ke4 d5+ Kd3 Kd7 c4 Kc7 h4 b4 c6 f3 g6 f2 g7 f1R f7 e4+ Kd4 g3 Ke5 g2 f6 b3 h5 b2 h6 d4 a6 Kb6 c7 d3 a7 d2 Qe1 d1R Rh3 e3 Na3 b1Q Nb5 e2 Rb3 Bc5 f8B Rd2 f7 Ne7 g8Q Na6 Nh3 g1B Qgg3 Nd5 Nd6+ Ka5 Ng5 Ne3 Ne6 Rf3 Ne4 Ng2 Rb6 Bd7 c8Q Bb5 Bg7 Qe7 f8Q Rh7 Qd7 Ba3 Qb8 Qbb4 Qdd6 Rb3 Qg4 Nc5 Qdc7 Rdb2 Qc3 e1B Bf4 Qf6+ Kd6 Bef2 Qbb7 Rg8 a8Q+ Na6+ Qc5 Re2 Qab8 Bb2 Bh8 Rg5 Bg7 Qf7 Bge5 Qg7 Bd2 Qf7 Bef4 Qf6 Be1 Ra3 Qc2 Rg3 Qc1 Qbc3 Qe5 Nc5 Qd2 Kb4 a5 Bd4 a6 Ka5 Qg7 Qb4 Qgb7 Bde3 Rc6 Na4+ Kd5 Bc5 Qc3 Ba7 Rb6 Nc5 Kd6 Na4+
r2Q2B1/1n1qK3/PB1B3B/1Q3R2/R1b4n/1bbq2Pb/2b1P2B/2q1k1bN w - - 0 1 legal: proof: d4 a5 b4 axb4 c4 f5 c5 e5 d5 g5 Nd2 b5 Ndf3 d6 cxd6 Ra3 Nd4 exd4 g4 Rg3 gxf5 g4 Ba3 Rh3 Bc1 g3 Bf4 g2 Bc1 Rg3 hxg3 Qf6 Rh6 Qe7 Rh1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 c5 f4 h5 a4 h4 a5 h3 a6 c4 d7 b3 d6 d3 Kd5 b2 Rb1 b4 Qc2 c3 Nf3 g1B Ne1 d2 Qd3 d1B Ra1 b1Q Qb5 h2 Be3 b3 Bg2 c2 Ra4 c1Q Nd3 b2 Nf2 Nc6 Ba7 Qe7 d8Q Na5 d7 Nb7 Bf3 Bh6 Bh5 Bg5 Bf7 Nh6 Bg8 Qbc2 Bb6 b1B Bc5 Qd3+ Kc6 Kg7 f6+ Kg6 f7 Kf5 f8B Bf6 Kc7 Qf7 Bd6 Bb3 Kc6 B1c2 Ba7+ Kg6 f5+ Kh5 Kc7 Bc3 f6+ Nf5 Bd4 Qd5 f7 Nh4 f8B Kg6 Bh6 Kf5 Qe8 Bc4 d8B Be6 Qf8+ Bf7 Kd7 B4b3 Ng4 Ke4 Ke7 Qf5 B8b6 Bfc4 Qd8 Qd7+ Kf6 Be3 Rd1 h1B Rf1 Bg2 Rf2 Bh3 Rf5 Qc6 Ke7 Bg1 B4c5 Qcd5 Bf8 Q5d4 Nf2+ Ke3 Nh1 Kd2 Bh6+ Ke1 Be5 Qd5 Bcd6 Bc5 Bd4 Qc6 Bg1 Qcd5 Bh2 Bg1 Bh7 Rf8 Bg8 Q5d4 Qdd7 Ra8 Qd8 Qd5 Bb4 Qc6 Bd6 Qd7+
3b2kN/2P1Rqb1/QNKQ2N1/1N3r1N/q2b1r2/1BPRP3/1q5b/3bbn2 w - - 0 1 legal: proof: f4 e5 g4 b5 d4 f5 a3 c5 dxc5 h6 a4 bxa4 Be3 Nc6 fxe5 Nce7 Bg5 hxg5 Kd2 f4 Ke1 Nf5 gxf5 Qc7 Qd2 Qb6 Qd1 Qd8 Kf2 Kf7 Kf3 a5 Ke4 d5+ Kd4 f3 b4 g4 h4 g5 e3 a3 f6 g3 h5 g2 b5 a4 h6 g4 c6 f2 b6 g3 b7 a2 b8Q a3 c7 Bg4 h7 Ne7 Kc5 d4 Qa7 d3 Qb6 d2 Qa5 Bg7 Nf3 g1B Bb5 f1Q Nh4 g2 Kb6 Bf2 Nc3 g1B Ba4 Bh2 Nb5 Be1 Qa6 Nf5 Ng6 Rf8 h8N+ Kg8 e6 Ng3 e7 Qd4+ Kc6 Qb2 e8N Qf2 Rb1 a1B Bb3+ Rf7 Rf1 a2 Rg1 Nf1 Rg3 Bf8 Ng7 Be7 Nh5 Bd8 Rf3 Rb8 Rf5 Qf4 Re5 Rb7 Re7 Qf5 Qe2 d1Q Qd2 Qf2 Qd5 Qdd4 Qe6 Qa4 Rd1 Qff4 Rd6 Bd1 Rd3 Qf5 Qd6 Ra7 Qb7 Ra5 Qa6 Qe6 Ngf4 Rf8 Nd5 Qf7 Nb6 Qb1 Nd7 Bd4 Nb6 a1B Ng3 Be5 Nh5 Bad4 c3 Qb2 Rd2 Bef4 Rd3 Bh6 Qg3+ Bg7 Qd6 Qe6 f7+ Kh7 Qb7 Qb4 Qa6 Qf5 Na3 Qa4+ Kb7 Re5 Nb5 Re4 Kc6 Rf4 Re6 Re8 f8N+ Kg8 Nfg6 Qf7 Re5 Re6 Re4 Ref6 Re7 R6f5
N2b2n1/5R1b/2Pb3q/1N1qb2K/4b1N1/2P2rNQ/Qrk1PBq1/1RN1q3 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 g4 exf4 d4 Nh6 dxc5 Ng8 Kd2 h5 Nh3 f5 Ke1 f3 Ng1 f4 Bh3 Nc6 Be3 Nd4 Bc1 Nf5 gxf5 Ne7 Bg4 hxg4 Ra4 Ng8 Ra5 Qb6 Ra1 Qd8 Kf2 Kf7 b4 Kf6 h4 Ke5 b6 g5 f6 a5 b5 d5 f7 a4 h5 d4 c6 a3 h6 a2 b7 d3 b8N Kd4 h7 d2 b6 Qf6 b7 Qh6 Na6 Rb8 Nc3 Bd6 f8N Bf5 Rb1 a1B Ne6+ Kc4 Qe1 d1Q Na2 Qd5 Be3 Bae5 c3 Rf8 b8N g3+ Kf1 f2 Nac7 g4 Nd7 Rb8 Nec5 Rb2 Ne4 Kb3 Kg2 Kc2 Nc1 Bg6 Nf3 f1B+ Kg1 g2 Kf2 Bf5 Nh2 g3+ Kf3 g1B Bf2 g2 Nb5 Bg6 Kg4 f3 Ng3 Be4 Be3 f2 Nb6 Bg6 Na8 Bd3 Nf3 Bh2 Bb6 g1Q Bc5 Bf6 Ne5 Bg2 Bb6 f1Q Bf2 Qf4+ Kh5 Bge4 Bc5 Qfg2 Bf2 Bg5 Ng4 Be5 Qf1 Bd8 Qe1 Ne7 Qf1 Rf8 h8Q Ng8 Qg7 Qe3 Qa7 Rf3 Qa2 Qd2 Be1 Qge3 Bf2 Qe1 Rg1 Bh7 Rh1 Bde4 Rg1 Qh1 Qh3 Qg2 Rf1 Bd6+ Nf5 Bhe5 Ng3 Rf8 Bg1 Q3d2 Rf7 Qe3 Bf2 Q3d2 Rc7 Rf3 Rf7 Qh6+
B4r2/n1Kn2bB/B2qr1R1/1B1r1rQ1/1BP1Nqq1/3Q4/1P3nP1/1n2N2k w - - 0 1 illegal: No possible last move, all moves rejected
K1nB2Qr/8/2nBQ3/1P1BRb2/N1N1P1PB/rk2b3/n1pbBb2/b5q1 w - - 0 1 legal: proof: f4 b5 b4 e5 a4 d5 axb5 f5 h4 g5 c4 dxc4 hxg5 Be7 Ra3 Bf8 fxe5 f4 e4 Qd7 Rf3 Qd8 Re3 fxe3 Ke2 Kd7 Kf3 c5 d4 h5 g4 a5 g6 a4 d5 h4 d6 h3 g7 e2 b6 Kc6 d7 Kb5 b7 e1B e6 h2 e7 a3 e8Q a2 Bg5 a1B Qd5 Ka4 b5 c3 Nd2 c2 Kf4 c1B Be2 c4 Qde6 c3 Ke5 c2+ Kd5 Nc6 b8B Bc5 Bd6 Qb6 d8B Be3 Bh4 B1f2 Nc4 Bcd2 Q8f7 Kb3 Qf8 Nh6 g8B Nf5 Bf7 Bd7 Qg8 Ra2 Nh3 Ra7 Nf4 Ra3 Nd3 Bc8 Rf1 h1N Ndb2 Nhg3 Na4 Bd7 Bb8 Nd6 Rh1 Nc8 Bd6 Bfe1 Rf1 Qa7 Rf5 B1f2 Re5 Nf5 Qe7 Nfd4 Qee8 Bf5 Qe6 Qe7 Kc5 Qg5 Kd5 Nb4+ Kc5 Na2 Kd5 Nf3 Kc6 Nd4+ Kb7 Nc6 Ka8 Qh6 Qd7 Qf4 Bd5 Qh2 Qde6 Qg1
1KQ1r1b1/2RN1N1r/Nr1rn2Q/1Pb2pP1/rN2P1n1/1q6/b1N4R/6kB w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bd6 Ba3 Bh3 axb5 Bf8 b6 Bg4 b5 Bc8 Bb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 g4 b3 g6 b2 g5 f3 b7 f2 d6 h4 d7 h3 g7 h2 d3 Ra4 Qe2 Nf6 g8Q Na6 Na3 b1B b8N Ba2 Bg2 f1R Qh5 Rd1 Qh6 c6 Qe6 Nc7 Nc2 Rg8 Qe8 Ne6 d4+ Kc4 d5 Kd3 d6 c5 Rb1 c4 Rc1 c3 Nf3 Ke2 Na6 Qa5 d8N Kf2 d7 Rd6 Nf7 Qb4 d8N Qb3 Nc6 Bd7 Ne3 c2 Ncb4 Be7 Qc8 Re8 Nd2 Bc6 Ndc4 Bd5 Nb6 Bc4 Nd7 Bd5 Rb1 c1R Nec2 Bf8 Rb2 Bc4 Rd1 h1R Bf3 Rh4 Bh1 Rh2 Rd5 Kg1 Rc5 Rh3 Rc7 Rh4 Qg6 Rh7 Qh6 Be7 Na3 Bd5 Rh2 Rcc6 Nac2 Nf4 Nd8 Bg8 Nf7 Ne6 Ndc5 Rdd8 Ra7 Rd2 Nd7 Bc5 Rb7 Rc7 Ra7 Bd4+ Kd6 Ng4 Rb7 Rd1 Rb6 Rc4 Rc6 Rd3 Rc5 Bf2+ Kc6 Rd6+ Kb7 Rc3 Rc7 Rcc6 Ka8 Bc5 Kb8 Rb6+
Nb4b1/q2pP3/5n2/1RPn1k2/1P1Q1N1r/KNnN2Bb/7N/Br1Qb2b w - - 0 1 legal: proof: b4 b5 f4 c5 d4 g5 dxc5 h5 g4 e5 a4 Bg7 axb5 Qc7 Ra3 Qd8 Rf3 Bf8 Bh3 Rh7 fxe5 Rh8 Rf4 gxf4 g5 Qa5 Bf5 Qd8 Bg4 hxg4 Kd2 Ke7 Kc3 Ke6 Kb3 a5 h4 f5 e4 g3 c4 g2 g6 f3 c6 f2 c7 f1B h5 a4+ Ka3 f4 g7 f3 h6 f2 h7 Ra7 b6 Bd3 b7 f1B Rh5 Qe8 Bb2 Ra6 Ba1 Bd6 Ne2 g1N Nc1 Be7 Nd2 Bf6 Ndb3 Nc6 b8B Bb7 c8Q Nce7 Qc5 Nd5 Qd4 Bh3 Bd6 Bdf1 Nd3 Bh4 Bb8 Ngf6 g8N Rc6 Nh6 Be1 Ng4 Ne2 Nh2 Nec3 Bc7 Qa8 Rg5 Rg8 h8N Qa7 Ng6 Rh8 Rf5 Rh4 Ngf4+ Ke7 e6 Bfg2 e5 Bh1 Bb8 Rd6 c5 Ba6 Rg5 Bc4 Rg8 Ra6 Bc7 Ra5 Rb8 Ra6 Kb2 Ra5 Rb5 a3+ Kc2 a2 Kb2 Kf8 e7+ Kf7 e8N Ra3 Ne2 Kg6 e6 Kf5 e7 Ra6 Nef4 Re6 Bd6 Re2+ Kc1 Rb2 Nc7 Rb1+ Kc2 Nb6 Na8 Bg8 Bc7 Nbd5 Ra5 Rc1+ Kb2 Rb1+ Ka3 Na4 Bc3 a1B Rb5 Bb2+ Ka2 Bc1 Ba1 Be3 Ka3 B3d2 Nh5 Bg5 Bg3 Bf4 Ka2 Be5 Nhf4 Bb8 Ka3 Nac3+
n3RR2/1pb2B2/PkrN1n1K/2q2R1R/P1n4q/RbP3Q1/6r1/rnN4Q w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 bxa5 g5 e4 h6 exf5 Rh7 fxg5 Kf7 g6+ Ke8 g7 Nc6 g5 Nb8 g6 Rh8 Bg5 hxg5 Ke2 e5 Kf3 d5 Kg4 Kd7 h4 Kc6 a4 e4 a6 e3 h5 d3 h6 d2 Kh5 g4 h7 d4 f6 e2 f7 e1R Nf3 g3 Bh3 d3 Bf5 g2 Na3 g1Q Bd7+ Kb6 Nd4 Nf6+ Kh6 Rg8 h8R Bd6 f8R Bc7 Bg4 Be6 Nab5 Bb3 Rh5 Nbd7 Nd6 Rc8 Ne2 Qc5 Rf5 Rg1 Qc1 d1N Bh5 d2 Ra3 Nc3 Rh7 Rg2 Qh1 d1N Nc1 Nb1 c3 Nb2 Re8 Rf8 g8Q Nc4 g7 Rf7 Rh8 Re7 Bf7 Re1 Qh7 Qe7 g8R Qe4 Rgg5 Qh4+ Rh5 Qf4+ Rfg5 Ka7 Na2 Ba5 Qg6 Ndb6 Rh4 Rc6 Rb8 Na8 Rbe8 Bc7 Rh5 Qh4 Rhf8 Nbd2 Rf5 Kb6 Qg3 Ra1 Nc1 Nb1
1RR4B/1p2P2q/1P6/rRbq1r1Q/1Qn2k2/1q4q1/Rb3qPR/B4NKb w - - 0 1 illegal: No possible last move, all moves rejected
1b4b1/2q3k1/2QP1N2/1n1Qq2p/1Pq1Nn2/B1RbQ1bn/R2P2Q1/3r1QK1 w - - 0 1 legal: proof: c4 a5 g4 g5 f4 gxf4 h4 e5 a4 b5 axb5 d5 cxd5 Kd7 g5 Ke8 Bg2 Ra6 h5 e4 Bf3 Rg6 hxg6 exf3 Kf1 f5 e4 c5 b4 a4 g7 Kf7 e5 c4 b6 f2 b7 a3 Nf3 c3 Nh4 c2 Bb2 c1N Rh3 a2 Rb3 Be6 Bd4 Bd6 Rd3 Nc6 b8Q Nge7 Ra3 Ne2 Qa4 Ng1 Rb3 Qc7 Rg3 Ng6 Nc3 Nh3 Ng2 Na7 Ne3 Nb5 Ng4 h5 Ne4 Rc8 Kg2 f1Q+ Kh2 f3 Bb2 f4 Ba3 f2 Ngf6 Qe1 Rc3 f1Q g8Q+ Ke7 Qba7 f3 Qf2 Qfc4 Qf1 Ngf4 g6 f2 g7 Qee2 Qd8+ Kf7 Qa8 Kg6 Qc6 Bg8 e6 Qe1 e7 Qe3 Qd3 f1B e8Q+ Kh6 Qb1 Bd3 Qf1 Qed4 Qdd7 Qe5 Qg4 Ra8 Qgg2 Ra7 Qea8 Ra4 Qa7 Ra6 Qe3 Ra7 Rac1 a1B R1c2 Ra8 Ra2 Re8 Rc1 Bd4 Kh1 Ba7 Rc3 Bb8 Kh2 Bh7 g8Q Re6 Qf7 Bg8 Nh7 Rg6 Qf5 Kg7 Nhf6 Bc5 d6 Bd4 Qef3 Bf2 Qe3 Bh4 Qe6 Rg4 Qed5 Rg5 Qgg1 Rg2+ Kh1 Bg3 Qh2 Re2 Qhf2 Re1 Qg2 Ng5 Kg1 Rb1 Rb3 Rd1 Rc3 Ngh3+
1N1rk3/K2N1rR1/1q2B1n1/Q1Qqp1nq/P7/1B5P/1qBB1P2/b1B3qq w - - 0 1 legal: proof: b4 a5 g4 h5 a4 f5 d4 b6 e4 Bb7 exf5 Bd5 Ra3 Bb7 Rg3 Be4 f6 c5 dxc5 Bf5 gxf5 axb4 Rg4 hxg4 Kd2 g5 Ke3 d5 Kd4 g3 c4 e6 h3 g4 c6 b5 c5 g2 c7 b3 c8B g3 c6 b2 c7 b4 Nc3 b1Q Nce2 b3 Nf3 g1Q Ne5 g2 Qd2 b2 Nd7 Ra7 Qa5 Bg7 Kc5 d4 Kb6 d3 Nd4 d2 Bd3 d1Q Bc2 Qa1 Nc6 Na6 Ncb8 b1Q+ Bb3 Qge1 Rg1 Qh5 Bb7 Nc5 Be4 Qd2 Bc2 Qd5 Bd2 Ne4 f7+ Ke7 f8B+ Ke8 f6 Qab2 Bc5 Ne7 Bce3 Ng5 Bf4 Ng6 f7+ Ke7 Bfe3 Bc3 Bc1 e5 Bed2 Rb7+ Ka6 Rg8 c8B Qc7 Nb6 Rd8 Be6 Bd4 N6d7 Qcc5 Re1 g1Q Re3 Qdh1 Rg3 Qcd5 Rg2 Qa3 Rg4 Ba1 Rg3 Qab2 Rg4 Re8 Rg3 Rc7 f8Q+ Kd8 Qfc5 Rg8 Qd4 Ke8 Qdc5 Rf8 Rg4 Rc8 Kb6 Rd8 Ka7 Rf7 Rh4 Qhg4 Rh7 Qh5 Rg7 Qbd4 Be3 Qbb2 Bf4 Qb4 Bfd2 Qb6+
2B1R2q/1Rp1bK1b/P2R1b2/qr1nN3/2b1kb2/2P2RP1/bNR5/2Q2Qn1 w - - 0 1 legal: proof: b4 b5 a4 f5 d4 g5 g3 e5 dxe5 a5 Bb2 axb4 Ba3 bxa3 Kd2 f4 Ke1 g4 gxf4 g3 f5 g2 Qd2 Ra6 Qc1 Rg6 Qd1 Rg3 hxg3 Bg7 Qd2 Bh6 Qd1 Bf8 Kd2 Ke7 Ke3 d5 Kd4 h5 f4 a2 e4 h4 f6+ Ke6 f7 h3 a5 b4 a6 h2 Na3 b3 Nc4 b2 Rc1 b1B Nb2 a1B Nf3 Be7 f8R Nf6 Qe1 Ba2 f5+ Kd7 e6+ Kd6 Rg1 h1B Ne5 Rh5 Bb5 Bb7 Bd7 Qc8 Rf7 Qh8 Bc8 Nbd7 Rb1 Bc6 Qc1 Bb5 Rd1 Bbc4 Rd2 g1B+ Rf2 Nh7 f6 Ng5 Rf8 Bg2 f7 Nh3 Rd8 Bgf1 f8Q Bfd3 Qf3 Rf5 Qe2 Rh5 Qef1 Rg5 Rf8 Nb6 Rf3 Rh5 Kc3 d4+ Kb4 Bg5 e7 Bf4 e8R Rf5 Rd2 Bf2 Re7 Ng1 Rd7+ Ke6 Kc5 Nd5 Kc6 Be1 Rh2 Bb4 Rd8+ Kf6 Kd7 Kg5 Ke6 Be7 Nd7 Kg4 e5 Rh5 Rg2 Bh7 Kf7 Kf5 e6 d3 Ne5 d2 Rd6 d1Q Rh2 Ke4 Rg2 Bf6 e7 Qd2 e8R Qa5 c3 Rf5 Nbd3 Bb2 Rc2 Ba3 Rb7 Rh5 Rdb6 Bae7 Nb2 Rh2 Re6 Re2 Rd6 Re1 Qd2 Ra1 Qdc1 Rb1 Na4 Rb3 Nb2 Rb5
2rB2B1/3B1QnB/2b1pr1n/r1Pk4/1RnBN2Q/5P1q/1K1P3n/r3N2q w - - 0 1 legal: proof: b4 a5 h4 axb4 e4 d5 a4 g5 Ra3 c5 Ra2 f5 exd5 g4 g3 Bh6 Ra1 Bg5 hxg5 Kd7 Ra2 Ke8 Ra3 f4 gxf4 c4 Rb3 cxb3 f5 Qc7 Bb2 Qb6 Bc1 Qd8 c4 Kf7 a5 b5 c5 h5 f6 g3 d6 Ke6 d7 g2 g6 b2 a6 h4 a7 h3 f7 h2 f8Q b3 g7 b4 Qdf3 Nh6 Kd1 Nc6 Qe8 Bb7 Be2 Qc8 d8B Nd4 Ba6 Ndf5 Qe2+ Kd5 Nf3 g1N Qe3 Bc6 Ne1 Nf3 g8B+ e6 Qf8 Ng7 Bb5 Qc7 Qc3 Qg3 Qcf6 Qh3 Qh4 Rc8 Rg1 h1Q a8B Nh2 f3 Rh7 Rg4 Rh8 Na3 b1N Qf7 b2 Nc4 b3 Nd6 Na3 Rb4 b1R Ne4 b2 Ba4 Nc4 Kc2 Ra1 Bb7 b1R Bb2 Nhf5 Bd4 Rh6 Ba6 Rf6 B6b5 Ne5 Bd3 Nh6 Bab5 Rc1+ Kb2 Ra5 Bc2 Rca1 Bcd3 Bb7 Bd7 Ba8 Ng5 Bb7 Bdh7 Bc6 Ne4 Nc4+
1bk5/nNP1Rr2/2p5/2Nb1NN1/1bQR2Kb/1n2Br1b/PrQ2P2/2r3N1 w - - 0 1 legal: proof: e4 b5 c4 bxc4 g4 h5 gxh5 f5 exf5 a6 b3 Nf6 b4 Ng8 d4 Rh7 b5 Bb7 b6 Bc8 d5 Rh6 d6 Rh8 Bg2 Nh6 Bc6 Ng8 Ba4 c6 Bb5 Qc7 dxc7 axb5 Ke2 g5 Kf3 d5 h4 Kd7 h6 e5 h5 b4 h7 e4+ Kg4 d4 h6 c3 f6 c2 f7 e3 b7 b3 Rh5 d3 Qf3 b2 Qh1 d2 Qe4 d1B+ Nf3 e2 Ng1 e1B+ Qe2 Beb4 Be3 c1R Nc3 b1R Kh3 g4+ Kg3 Bb3 Nb5 Rb2 Qc2 Bfc5 f8Q Ba7 Nd6 Bd5 Qf7+ Ne7 Re5 Na6 Nf5 Rf8 h8N Nc5 h7 Nb3 Qg8 Rf6 Nf7 Bb8 h8N Ra3 N7d6 Rf7 Kf4 g3 Kg4 g2 Re6 Rh7 Nhf7 Rg7+ Ng5 Rf7 N1f3 g1B Re4 Re1 Rd1 Bh2 Rdd4 Bg3 Ng1 Rc1 Re6 Bh4 Re5 Rg7 Qf7 Be4 Qfc4 Bd5 Ne4 Rf7 Nc5+ Ke8 Ree4 Bce6 Re5 Nc8 Ree4 Na7 Re5 Kf8 Ree4 Bc8 Re7 Be4 Bf4 Bg3 Na4 Nc5 Kh5 Bd5 Nh6 Bh3 Nf5 Bh4 Bd2 Rf3 Be3 Bf1 Kg4 Nb3 Nc5 Bg2 Rd7 Ke8 Nce6 Nb5 Nd8 Ba7 b8N Bf1 Na6 Bb8 Nb7 Na7 Rd6 Bg2 Re6+ Kd7 Nac5+ Kc8 Re7 Bh3+
k1nQ1bKQ/2q1RQ2/2r2BP1/P1Q1rqb1/P1B3N1/2n1p1p1/1R3Q1n/4r3 w - - 0 1 legal: proof: e4 h5 g4 g5 c4 a5 d4 d6 f4 b6 b4 Nh6 bxa5 Ng8 c5 Bh6 c6 Kf8 e5 Kg7 d5 Kg6 Nc3 Bd7 cxd7 Bf8 Ne4 Kh7 Nf2 Kg6 exd6 gxf4 g5 Bg7 Ng4 hxg4 Bb5 Bh6 Bf1 Bf8 Kf2 Kf5 h4 Ke4 a4 c5 h5 e5 g6 f5 h6 g3+ Ke2 f3+ Kd2 f4 Kc3 f2 Kc4 f3 h7 b5+ Kb3 c4+ Kb4 c3 Kc5 b4 Bd2 b3 Nh3 c2 Ra2 c1B Kc4 b2 Bc3 b1N Rb2 Nf6 Qb3 Bg5 Qa3 Qc7+ Qc5 Ra7 d8Q Nbd7 Qe8 Ng4 Qf7 Ra6 Bd4 Rg8 h8Q Nh2 Be2 Rc6 Re1 f1R Qhf6 Nb8 d7 f2 d8Q Nc3 d6 Nd7 Qh8 Rh1 Qdf6 f1Q Qf2 Rg7 Q2f6 Qf5 Nf2+ Kf4 Bd3 e4 Ng4 Kf3 Be5 Nb6+ Kd4 Nc8 d7 Rh7 d8Q Rh5 Ree2 Re1 Bc4 Na2 Kd5 e3 Rb7 Qb6 Re7 Qc7 Rb2 Nc3+ Kd4 Re2 Qfd6 Re1 Bf6 Qd3+ Ke5 Qf1 Ke6 Ke4 Qfg8 Qf5+ Kf7+ Qe5 Qe6 Bf4 Rb4 Rb6 Rb3 Rf5 Rb1 Bg5 Qed6 Qe6+ Ke8 Re5 Qd2 Qf5 Kf7 Ra6 Qf2 Rd6 Qa3 Kd4 Rb4 Kc5 Rb2+ Kc6 Qgh7 Rde6 Kg8 Rd6 Qf7 Rde6 Rd2 Kb7 Rb2+ Ka8 Qc5 Rc6
qNqQ2n1/1k2r1Q1/1n1pB1N1/RbPr1N1p/4n3/bPN1PrN1/8/3K3B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 fxe5 Be7 d4 Bd6 dxc5 Bf8 h4 Nf6 g5 Ke7 g6 Nc6 Bh6 Ng8 Ra4 Nb8 Rg4 hxg4 h5 Ke8 Bg5 Rh7 h6 Rh8 h7 Nf6 Bd2 Ng8 Bh6 gxh6 c4 a5 b6 f5 b3 a4 c6 g3 b7 f4 g7 f3 c7 g2 e3 h5 e6 f2+ Kd2 a3 e7 a2 Ke2 a1Q Rh2 Ra5 Nc3 Rd5 Qd4 Qa6 Kd1 Qa8 Nge2 g1N Bg2 Nh3 Ng3 Ng5 Bh1 Ne4 Qd2 d6 c5 Kd7 e8N Kc6 Qd4 Nd7 b8N+ Kb7 Rh4 Nb6 Rg4 Bd7 c8Q+ Ka7 Rh4 Qc7 Qd8 Bb5 Rg4 Kb7 Rf4 Ngf6 g8B Bg7 Be6 Ng8 Rg4 Be5 Ng7 Qc8 N7f5 f1R+ Kc2 Rf2+ Kd1 Rf3 Rh4 Qc7 Rh2 Qc8 Ra2 Ngf6 Ra6 Re8 h8N Re7 Ng6 Ng8 Ra5 Nd2 Qe4 Bd4 Qe5 Ne4 Na2 Ba1+ Qd4 Bb2 Nc3 Nd2 Qh8 Ba3 Qg7 Ne4+
bK2r3/Q1PQ1p2/3B3R/2qPpB2/1NB1qBb1/1rkPr2n/8/3RnBn1 w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 gxh4 b6 d5 exd5 Qd6 Ke2 Qc7 Ke1 Qd8 f4 e6 b4 Bg7 f5 Bd7 b5 Be5 f6 Bc8 Nc3 Kd7 Na2 Bd6 Nb4 Be7 fxe7 cxb4 Kf2 Kd6 Ke3 Kc5 Ke4 a5 Ke5 h5 e8B a4 g4 a3 c4 a2 g5 b3 b7 Kb4 g6 b2 b6 b1R g7 h3 Qg4 h4 Qd1 h2 Nh3 Qe7 Bc6 Nh6 g8B Qc5 Nf4 h3 Bh7 Rb3 Bf5 Raa3 Bb5 Re8 Rb1 a1N Nd3+ Ka5 Nb4 Nc2 Ra1 Ne1 Rb1 Qg1 Kd6 e5 Kc7 Ng4 Ra1 Nc6 b8B Nd4 b7 Ndf3 Ba6 Re3 Rb1 Rab3 c5 Nf2 d3 Bd7 Qe2 Bc6 Bc4 Ka4 Bd2 Ka3 Rd1 Kb2 Bc1+ Kc3 Qa2 Qg7 Qa7 Ng1 Qa4 Qf8 Qa7 Bd7 c6 Qc5 Qa4 Bc8 Ba7 Bd7 b8Q Bc8 Qb6 Bb7 Bb8 Ba8 Qba7 Ne2 Rg1 h1B Rg6 h2 Rh6 Bf3 Qb5 h1Q Qbb7 Re4 Bf4 Bg4 Qc8 Nh3 Qd7 Re6 Kc8 Neg1 Bd6 Re3 c7 Qe4 Kb8 Re8+
1k1N4/1n2Q2R/1r2nqR1/Kn1Qn1P1/8/1RP1bNpR/B1bp1Pbr/1R6 w - - 0 1 legal: proof: g4 f5 d4 b5 a4 h5 axb5 c5 Bf4 cxd4 e4 g6 exf5 h4 Bg3 hxg3 fxg6 Qb6 Qc1 Qc7 Qd1 Qd8 Kd2 d5 h4 Kd7 b4 Kc7 h5 a5 g7 e5 g5 d3 Kc3 d4+ Kc4 a4 c3 e4 h6 a3 h7 d2 Qb3 d1B Ne2 d3 Rg1 e3 Nd4 a2 Nc6 e2 Rh1 e1N Nd2 Na6 Nf3 d2 Rh3 Ng2 Rb1 Nh6 g8R a1N Rg6 Qf6 Nd8 Nc2 b6+ Kb8 Kb5 Na3+ Ka5 Nb5 b7 Nf7 Qd5 Ne5 Bc4 Bc2 Ba2 Bc5 Rb3 Be3 Rb1 Rf8 h8R Nf4 R8h7 Rh8 Rb3 Ne6 Rb1 Ka7 b8R+ Bb7 Rb3 Nac5 Rb1 Nbc7 b5 Bc6 Rb6 Rb8 Rb7+ Ka8 b6 Nb5 Rbg7 Rc8 b7+ Kb8 Rf7 Qe7 Rf4 Qf6 Rfb4 Rc7 R4b3 Rd7 Qd3 Be4 Qd5 Rd6 Nh2 Bg2 Nf3 Ka7 Kb4 Rb6 b8Q+ Ka6 Qbd6 Nb7 Qc7 Ka7 Qe7 Kb8 R3h6 Nf8 Rhg7 Nc5 Ka5 Nfe6 Rh4 Rh6 Rh7 Rh5 Re4 Rh1 Reh4 Rh2 Rh3 Nb7+
3rBrK1/2br4/2nN3k/pRQqQ1bP/Pn1n2rR/7P/Bp3RR1/6R1 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f6 bxc5 Nc6 e4 Nb4 e6 Ke7 e5 Nc6 Bf4 Nb8 Bg3 Ke8 e7 Kf7 Bf4 Ke6 Bg3 Kf5 e6 Ke4 Qc1 Kd5 Qd1+ Kc6 Bc7 Nh6 Be5 Ng8 Nc3 fxe5 Ne4 b6 Nf6 h5 Ng4 Ba6 h3 Bd3 h4 Bf5 Nh2 Bh3 Ng4 hxg4 gxh3 Kb7 Nf3 Kc7 Ng1 Kc6 Kd2 Kd5 Kc3+ Ke4 Kc4 Kf5 Kd5 Kg6 e8Q+ Kh6 a4 g5 c4 a5 f4 e4 e7 g3 f5 g2 f6 e3 h5 b5 f7 b4 c6 b3 c7 b2 c8B e2 c5 e1N c6 g4 c7 g3 Rh2 Nc2 Bb5 Rh7 Qd4 Nc6 Ne2 g1B Rg2 Be3 Rag1 Bg5 Qc5 N6d4 Nc3 Nb4+ Ke5 d5 Be6 Ra7 c8R Rd7 Ne4 Rg7 Nd6 Rh7 Rh2 g2 Rb8 Rg7 Bc6 Rh7 Rb5 Qa8 Rd1 g1R Rg2 Qb7 Qb8 Rd8 e8R Ne7 Rf1 Rd7 Rf4 Rg7 Rh4 Rh7 Rf2 Rg4 Rg2 Ne2 Ne4 Rd8 Rg1 d4 Ba2 d3 Ke6 d2 Qh2 Bg7 f8R d1R Kf7 R1d5 Rg2 Nd4 Bd7 Qc6 Rg1 Qd6 Rg2 Nec6 Kg8 Be5 Rff2 Rf7 Qg3 Rb8 Qh2 Rb7 Re7 Qe6 Be8 Rd8 Qf4 Bb8 Nd6 Qd5 Re1 Rbd7 Qe5 Bc7 Reg1 Rf8+
N4BbN/3Pb2r/r4Q1N/P1b2n1P/pRNNQq2/Bb3r1p/k3K1n1/8 w - - 0 1 illegal: No proof kernel
2n2b2/P3q1n1/p1BN1n2/2KQpqQb/2P5/Q3b1RP/2krqQ2/1R4QN w - - 0 1 illegal: No proof kernel
3k4/p1pb1B1b/Q1P2b1b/1QPr2RN/2Kq3N/b5n1/Pr1r4/3B1NNN w - - 0 1 legal: proof: d4 e5 dxe5 g5 c4 g4 b4 g3 c5 Qg5 b5 Nc6 bxc6 Bh6 fxg3 Qf6 g4 Qd8 g5 Bf8 g4 b5 g6 b4 g7 b3 g5 b2 g6 bxa1B Be3 h6 Bg5 hxg5 Kd2 f5 Kd3 d5 e4 f4 h4 f3 e6 f2 h5 g4 e7 d4 e5 g3 h6 g2 h7 Be6 Qa4 Bd5 Qa6 Bb2 Rh5 Ba1 Rg5 Rb8 Be2 f1B Nd2 Be4+ Kc4 d3 Bd1 Nf6 g8Q Qd7 g7 Bb2 Qd5 Bc1 g8N Rb2 Nh6 Nh5 Nf5 Bh6 Ng3 Qd6 Nh1 Ng3 Qe6 Be2 Qb5 Bg4 Nf1 d2 Qc8+ Qd8 Qcb7 Bd7 Q7a6 Rg8 h8N Bh7 Ng6 Rh8 Bb3 d1R Nh4 Rd5 Bd1 Rf8 Rg6 Rff2 Rg5 Kf7 e8N Ke7 e6 Rfd2 Ng7 Qh8 Ngf3 g1B Nh5 Bd4 Ng1 Ke8 e7 Bf6 Qab7 Rb3 Q7a6 Ba3 Ne3 Rbb2 Nf1 Kf7 e8B+ Ke7 Bf7 Kd8 Ng7 Qf8 Nh5 Qd6 Nf4 Qe5 Nh5 Qd4#
1k1N2qr/4nb1B/2PNpK2/qrb1RpB1/1N3q2/P1P4N/3q1Q2/3Q1rN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 f4 c5 d4 f5 dxc5 g6 exf5 Qa5 f6 Kd8 f7 Kc7 f5 Kc6 f6 Qd8 h4 Ra6 g4 Ra7 h5 Ra8 g5 Kc7 a3 Nc6 Rh2 Ne5 Rf2 Kc6 Rf5 gxf5 Nc3 Rb8 Nb1 Ng6 hxg6 Ra8 Qd5+ Kc7 Bc4 Qe8 Kf1 Ra7 Bd2 Ra5 Nf3 Bh6 Nc3 Ra8 Re1 Qd8 Nb1 Ra5 Bc1 Bf8 Qd1 Rb5 Ke2 Bh6 Rh1 Bf8 Ng1 Ra5 Ke1 Kc6 Bf1 Ra8 Ke2 Kc7 Kd3 d5 Kd4 b5 Ke5 h5 c3 d4 g7 d3 c6 d2 g6 b3 Bc4 h4 Nh3 b2 Re1 b4 Re4 Nh6 g8N b3 g7 Rb8 Re3 Ba6 Ke6 Kc8 Re5 Rb5 Ng1 Qa5 Nh3 Ng4 Nh6 Ne3 g8N Kb8 Bd5 Bg7 Bc4 Nd5 f8N Bc8+ Kf7 Be6+ Kg6 Bf7+ Kg5 Qb4 Ne6 Bf8 Nd8 Qa4 Bf1 Qa5 Bc4 Bh5 f7 e6 Be2 Bb4 f8Q Bf7 Qc5 Ne7 Qf2 Bd6 Bh5 Bc5 Qdf3 d1Q Kf6 Qd2 Bg6 Qf4 Nd2 b1R Qd1 b2 Bh7 Ra1 Nf3 b1Q Nfg1 Qc2 Rd5 Qcd2 Re5 Nc8 Ne7 Rab1 Nd5 Ne7 Ng5 h3 Nb4 h2 N5h3 h1Q Qff1 Qdd5 Qf2 Qhg2 Be3 Qg8 Bc1 Bg6 Nhf7 Qdd2 Nd6 Bf7 Qde2 Qa2 Bd2 Rf1 Qd1 Qfg3 Be3 Qd2 Bg5 Qgf4
1n2B2n/n4qKp/Qq2r2N/N2bP3/N2qpPN1/3r4/k1q2P2/2QR1RN1 w - - 0 1 legal: proof: h4 c5 d4 g5 b4 gxh4 a4 f5 e3 e5 a5 b6 Bb2 f4 exf4 e4 Bc3 Bh6 axb6 Bg7 b5 Bf6 Bb4 Be5 dxe5 cxb4 Ke2 Ke7 Ke3 Ke6 Kd4 a5 c4 d5 g4 a4 c5 b3 c6 a3 c7 b2 g5 h3 b7 h2 b6 a2 g6 Ra6 g7 Ne7 g8N Ng6 Nc3 b1N Qe1 Na3 Qe3 Nb5+ Kc5 d4 Na4 d3 Qc1 d2 Nh6 Na7 Bb5 d1Q Be8 Qf6 Kc4 Qc2+ Kd4 Bd7 c8Q Rg8 Rb1 Nh8 Ra1 Rg3 Rb1 Ke7 Kd5 a1Q Qc6 Qf7+ Qe6+ Kd8 Kd6 Bc6 Qc4 Qh5 Ke6 Rd3 Kf6 Qd4 Kg7 Ke7 Qb5 Ke6 Qa5 Nd7 b8N Bd5 Nc6 Nb8 b7 Rb6 Qa6 Qf5 Ne2 Qh5 Rd1 h1Q Na5 Qe1 Ng1 Qeb4 Nc4 Rd6 Ne3 Qbb6 Neg4 Rc6 Nf5 Qf7+ Kh6 Nd7 b8N Rd6 Nc6 Nb8 Ra1 Qh5+ Kg7 Bb3 Qe3 Kd5 Rd2 Re6 Nfh6 Ba2 Rf1 Bb3 Qa5+ Kc4 Rdd1 Ba2 Qed2 Kb3 Qa6 Ka3 Qe3 Bd5 Qc1+ Ka2 Na5 Qf7+
3RB3/p1b3P1/b1b2r2/nQP4p/2p3RR/P1R1B1RQ/Kq1r4/nN1bk3 w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 c5 b4 Bg7 bxc5 Bf8 hxg5 d5 c4 Bd6 c6 Bb4 Na3 Bd6 c5 Bf8 Nc4 dxc4 g4 Ke7 e4 Ke6 d4 b5 Kd2 h5 Kc2 f5 Kb1 b4 g6 f4 g5 f3 c7 f2 g7 b3 d5+ Ke7 e6 b2 a3 Bb7 c8Q Rh6 g6 Kf6 e5+ Kf5 e7+ Ke4 e8R Qg5 d6 Qe3 e6 Qf4 e7 Na6 d7 Nb4 d8R Ba6 Ne2 Kf3 Be3 Nc2 Bh3 f1B Bd7 Bg2 Ka2 Rb8 Rc1 Na1 Qb3 b1B+ Kb2 Ra8 Rc3 Bc2 Ka2 Bd1 Rh4 Rb8 Qb2 Bh1 Bc1+ Kf2 Be3+ Ke1 Bb5 Bc6 Qh3 Ra8 Rd4 Qf1 Rdg4 Rd8 Rg3 Rd6 Rd8 Rd2 e8Q Ne7 g8R Bg7 Qed7 Be5 Qb7 Bc7 Rg7 Be4 Be8 Nc6 Qb5 Na5 Rgd7 Rh8 g7 Bc6 Rdd4 Rf8 Rdg4 Rf4 Rc2 Rf7 Nc3 Rf6 Nb1 Qf4 Rc3 Qh6 Bd4 Qe3 Rb3 Qc3 Be3 Qc1 Rc3 Qxb2+
q1bK4/1NQ3np/2Q4p/5Q2/2Q1P2P/1pqRP2n/kB1rQq1N/2r1R1r1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 e6 bxa5 Qg5 d6 Kd7 Qb3 Ke8 Qe3 Qd8 Qh6 gxh6 d4 Qf6 e4 Bd7 d5 Qd8 Bc4 Bc8 d7+ Ke7 Bb3 Bg7 d6+ Kf8 Bc4 Bd4 Bd5 Be3 fxe3 exd5 Kd2 c5 Kd3 b5 g4 f5 a4 Kf7 h4 Ke6 a6 f4 a5 c4+ Kd4 c3 Kc5 f3 g5 c2 g6 d4 g7 f2 a7 f1R a6 d3 Ra3 b4 Nd2 Ne7 Nc4 d2 Bb2 d1Q Nf3 c1Q Rd3 b3 Nh2 Qf3 g8Q+ Qf7 Kb5 Nd5 Na5 Nf4 Nb7 Rg1 Qg2 Qdg8 Kb6 Nc6 Kc7 Nh3 Qe2 Qf2 d8Q Qc3 Qf8 Nd4+ Kd8 Nf5 d7 Rc1 Rhd1 Ng7 Re1 Rb8 a8Q Ke5 a7 Qd5 Qf1 Rg8 Qe2 Ke6 Na5 Rb4 Qb8 Qa8 Qb5 Rd4 Qc4+ Ke5 Rdd1 Rd2 Nb7 Ne8 Qff7 Rg1 Qff3 Ng7 Qff7 Qb8 a8Q Qa7 Na5 Kd6 Qf5 Rd4 Qb7 Qa8 Rd3 Rd5 Qca6+ Kc5 Qbc6+ Kb4 Nb7 Qf3 Ba1 Qg2 Qac4+ Ka3 Bb2+ Ka2 Ke7 Rh1 d8Q Qf2 Qdd7 Rg1 Kd8 Rc5 Qdc7 Re5 Rd6 Rd5 Rd7 Rdd1 Rd3 Rd2
q2QqRB1/R2R2Bp/P2R2Q1/2kbqn2/8/2Pp2P1/Rn4rp/b1K1nN2 w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 Qc7 Bd3 Qb6 Bf1 Qd8 h4 g5 h5 b5 Nd2 Ra3 Ndf3 Ra6 Nh4 Rg6 hxg6 gxh4 Kd2 d5 a4 Kd7 f4 Kc6 g7 e5 a5 e4 f6 b3 f7 d4 f5 b2 a6 b1Q f6 b4 Ba3 h3 Bc4 b3 Bb2 h2 Nf3 Nh6 g8Q Bb7 Ra2 Bg7 f8R Qe8 Rf7 Nf5 Rd7 Qa1 f7 Ba8 Qb1 e3+ Kc1 e2 f8R e1N Nd2 Be5 Qg5 Rg8 Qd8 Bf6 Ra7 Nd7 Nf1 Ne5 Be6 Rg4 Bg8 Nc4 Rg1 Kb5 c6 Kc5 c7 Bd5 Bc3 Nb2 c8R+ Bc6 Rcc7 d3 Rd7 Bh8 Bg7 Bd5 Ra4 Rg3 Rd4 Qa5 Ra4 Qc3 Ra2 Qce5 Qa1 Re3 g3 Re2 Rg2 Rd2 Rf2 Re2 Rf4 Rg2 Rd4 Nc4 Kd1 b2 Qc1 b1Q Rd6 Qb8 Qcg5 Nfe3+ Kc1 Nf5 Qg6 Nb2 Rdd7 Qa8 Rd6 Be4 Rdd7 Bc6 R4d6 Bd5 Re7 Na4 Bh6 Qe6 Red7 Ba1 c3 Qe5 Bg7 Nb2
1b6/RR2B2p/1qPRq1kP/R2q3p/P1R2K2/2q1rnpQ/5QrB/6Nn w - - 0 1 legal: proof: d4 a5 h4 d5 g4 c5 dxc5 a4 e4 g6 h5 d4 h6 a3 Be2 Bf5 bxa3 Bd7 a4 Be6 a5 Bd5 exd5 Ra7 Nd2 Ra8 Ndf3 f6 g5 f5 Ne5 Qd6 Bg4 Qd8 Bh5 gxh5 Ng4 fxg4 Ke2 Kf7 f4 e5 c4 b5 a6 d3+ Ke3 b4 g6+ Kf6 g7 b3 c6 e4 f5 b2 c5 b1Q a7 d2 d6 Qb3+ Kf4 e3 d7 e2 c7 e1Q c8R Nc6 Qf3 d1Q Qh3 Qdb6 d8R Qb2 Rd6+ Kf7 f6 Kg6 f7+ Nf6 g8Q+ Bg7 f8B g3 Be3 Nd4 Be7 Nf3 Qf8 Qd5 c6 Q2b3 Rc7 Qec3 Rb7 Qe6 Rh2 Ng4 Rc2 Qd5 a3 Rd8 a8R Nf2 Raa7 Nh1 Bd4 Qd3 Rc4 Qc3 a4 Rd7 Rb1 Rg8 Rb5 Rh8 Qb8 Re8 Rba5 Bf6 Bf8 Bd8 Be7 Bc7 Qd8 Bb8 Qc7 Qbb5 Qb6 Qa6 Qb2 Qb6 Qf2 Qa6 Rb3 Rb7 Rb1 Rb2 Bc5 Re2 Rbb7 Qb6 Qff1 Qbb2 Bf6 Re1 Ne2 Qb6 Bg1 Qf7 Bh2 Re3 Ng1 Qfe6 Be7 R1e2 Qe1 Rg2 Qd2 Qcb2 Qf2 Qc3
2RNb1KR/RBn3pN/1Pnb1p2/P3R2q/Q3rPk1/Q1p1b3/R4q2/5b2 w - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 Ne7 g4 Ng8 cxb5 a5 b4 axb4 g5 f6 g6 h6 Qc2 Ke7 Bg5 hxg5 Qd1 Ra6 Qd3 Re6 Qb3 Ke8 Qd5 Re7 Qd1 Rf7 gxf7+ Ke7 Kd2 Ke6 Kd3 Kf5 Kd4 c5+ Kd5 d6 a4 g4 h4 c4 e4+ Kf4 e6 b3 b6 g3 e7 c3 e8R g2 e5 b2 h5 Rh6 e6 Be7 f8Q Ba6 Nf3 g1B Ng5 Nd7 Nf7 Bc8 Rh2 Rh8 h6 Ne5 h7 Nc6 Bg2 Ba6 Nd2 b1B Nf3 Bf1 N3g5 Bg6 f3 Qa8 Rc8 Be3 Nd8 Be8 Bh1 Qa6 Rha2 Qe2 Qb3 Kf5 f4 Kg4 Qa3 Qh2 Qf7 Bf8 e7 Qf2 Ke6 d5 Qg6 d4 Qc2 d3 Bg2 Na7 Bb7 d2 Qe4 d1Q Qc6 Bh5 e8R Ne7 Qe4 Rg8 h8R Nec6 Nh7 Bd6 Re7 Rf8 a5 Nb5 Qea4 Qdf3 Re1 Be8 Rec7 Bc1 Re5 Be3 Ba8 Qh3 Ra7 Qh5 Bb7 Bg6 Kd7 Rf7+ Ke8 Re7+ Kf8 Nc7 Kg8 Be8 Rf5 Re4 Rb5 Qh3 Re5 Qh5
R5n1/3pqbPk/1N2NB1q/1NQPN1b1/1Qb1n1Pb/8/2N1pp2/3n1BK1 w - - 0 1 legal: proof: e4 h5 g4 f5 b4 b5 h4 a5 a4 g6 axb5 a4 f4 Na6 c4 Rb8 b6 Ra8 c5 Nb8 b5 Rh7 Ra3 Rg7 Rb3 Ra6 b7 Rb6 cxb6 fxe4 f5 g5 Rf3 Rg6 Rf4 gxf4 Qb3 Na6 Qd1 Rg5 hxg5 Nb8 Kf2 Kf7 d4 Kg7 f6+ Kh7 f7 e5 Qd2 c5 Qb2 c4 Qc2 a3 Nf3 c3 Nh4 a2 Be3 a1N Ng2 h4 Kg1 h3 Ne1 Qe7 Nd2 Bh6 Nc4 Na6 b8N Nc5 Nc6 Ba6 Qc1 c2 f8N+ Kg7 g6 Bg5 Bd2 e3 b7 e4 b8N e2 b6 e3 b7 Ne4 Nb6 Bc4 Ne6+ Kh8 g7+ Kh7 Qa3 c1Q Qc5 Nc2 Bc3 Qd2 Na7 h2+ Kg2 Qc1 Nb5 Qd2 Rg1 h1B+ Kh2 Bg2 Nc6 f3 b8Q Bd5 Nd3 e1B Nce5 Beh4 Ne1 Bh3+ Rg2 Qc1 Kg1 Bb3 Nd8 Bf7 d5 Qd2 Ne6 Qc1 Rd2 Bg2 Be2 Bf1 Rd4 Qd2 Ra4 Qc1 Ra8 Qd2 Bd1 Bc4 Be2 Qc1 Bf1 e2 Qf8 Ne3 Nc2 Nd1 Qb4 Qf4 Qc8 Qff6 Qcc5 Qh6 Nc6 Bc1 Bf6 Bcg5 Ne5 f2+
3RR3/R2P2pp/Q1Q1PqP1/K6R/1rN2k2/r2n1p2/pnb2B2/1nq1N1R1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 e6 axb5 Na6 d4 Qh4 d6 Qxh2 d7+ Ke7 d5 Nb8 f4 Qh3 e4 Bb7 e5 Bc8 Bc4 Kd8 Bb3 Ba3 Ba2 Ke7 d6+ Kf8 Bc4 Qh2 Bd5 exd5 e6 Bc5 Ra4 Bd4 Ra1 Be5 fxe5 Bb7 Qg4 Ba6 Qd1 Bc8 Kd2 f5 Kc3 c5 g4 a5 b4 c4 e7+ Kf7 d8Q Kg6 e8R a4 b6 f4 b7 a3 b5 a2 Kb4 c3 b6 d4 g5 Kf5 g6 d3 Qc2 Nd7 b8R Ne7 b7 Ra3 Ra8 Nc5 b8R Qf2 Qa5 Nd5+ Kb5 Kg4 Nd2 Bf5 Nc4 d2 d7 d1N e6 Nb2 Ra7 Ncd3 Be3 Rf8 Qca4 c2 Nf3 c1Q Qa6 Nc3+ Ka5 Nb1 Ne1 f3 Rh2 Qh4 Rbd8 Qf6 Bf2 Kf4 Rh5 Rb3 Re7 Rb4 Q4c6 Rg8 Rda8 Rgb8 Re8 Rb3 Rd8 R8b4 Re8 Rc3 Rad8 Ra3+ Qa4 Ne5 Rh2 Qc3 Nc2 Nd2 Rg1 Nb1 Ne1 Qc1 Rh6 Bc2 Rh5 Rc3 Q4b5 Ned3 Qbc6 Ra3+
1r1QNQ2/2b1P1pp/2Q2Pn1/4P3/n1Q1B2B/1b1pNQ1q/p4n1k/1K1n1R2 w - - 0 1 illegal: No possible last move, all moves rejected
3RRn2/2p4q/2B2B2/1n1B1P2/2BnrP1b/Ppp5/N1k3p1/Q1rnBKQ1 w - - 0 1 legal: proof: d4 d5 c4 a5 b4 f5 bxa5 g5 h3 g4 g3 f4 gxf4 g3 Nd2 Bg4 hxg4 e6 f5 dxc4 d5 e5 Nb3 Bh6 Nd4 exd4 Qc2 Bg7 Qd1 Bf8 e4 Kf7 d6 Kf6 g5+ Ke5 g6 h5 a3 b5 g7 c3 d7 h4 a6 b4 f3 d3 f4+ Kd4 e5 d2+ Ke2 h3 e6 h2 a7 b3 e7 Nc6 e8Q Nge7 g8B Ng6 Bd5 Qh4 d8B Qh7 Be7 Rb8 a8B Rb4 Bh4 Bd6 Bf6+ Be5 Qe1 d1N Bd2 Nf8 Qh5 Rc4 Qf3 Ra4 Qg2 Rb4 Nh3 Rc4 Nf2 Ra4 Rg1 h1N Nd3 Nhf2 Nc1 Ne4 Na2 Nd6 Rh1 Nb5 Qg1+ Ne3 Rd1 Rc4 Bd8 Bf6 Rh6 Bh4 Re6 Nb4 Re8 Nc2 Bdc6 Ra4 Bf6+ Kc4 Rb1 Rb4 Qc1 Nd1 Be1 Ra4 Rb2 Rb4 Qa1 Ra4 Bfg2 Ncd4+ Kf1 Kd3 Bgd5 Rc4 Rb1 Kc2 Bab7 Ra4 Ba6 Nb2 Rd8 Nd6 Bd2 Nf3 Bf7 Qh6 Qb6 Bg5 Re8 Re4 Bac4 Nb5 Rd1 Qg6 Kg2 Rh1 Qf2 Bh4 Bg8 Rhe1 Qg1 Qh7 Bgf7 R1e3 Bg8 Rd3 Be1 Rde3 Rdd8 Nfd4 Bd2 Re1 Bgd5 Rc1 Be1 Nd1 Kf1 g2+
1q1NNbQ1/q5pq/Np1N1P2/1Qqnk3/4p2R/6Rr/p2KNPP1/1n1B4 w - - 0 1 illegal: No proof kernel
RR3q1r/N4rRQ/rN4P1/4qqK1/Rn4BR/p1rb4/PPn5/k3bQr1 w - - 0 1 illegal: No possible last move, all moves rejected
1N1nqR1K/1R1n1nQb/N2P1b2/P2Bp1b1/5r1k/r2r3q/Q1bRP2R/4R3 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h6 g6 Kd7 g7 Ra6 g5 Rh7 g6 Rh8 Bb2 Ke8 Bf6 Ra8 Bg5 hxg5 Kf2 e5 Kg3 Ke7 h4 Kf6 a4 c5 d4 b5 h5 g4 Kh4 b3 h6 b2 Kh5 c4 h7 b4 d6 g3 d5 c3 d7 g2 d6 c2 Nc3 c1B Ra2 b1B Qe1 b3 Nd1 b2 Qb4 Qe8 d8R Be7 Ne3 Nd7 Nf3 g1N Qb3 Nh3 Nd4 Bc2 Bg2 b1Q Nc6 Nh6 g8Q Ng5 g7 Ne6 Re1 Ra7 Qc4 Qb3 Bd5 Ba6 Qg4 Bad3 Rb8 Nd8 Rb7 Bf5 Nb8 Ra8 Nc4 Bg5 Na5 Qf3 Na6 Qh3+ Qh4 Bfe4 Nc6 Kf5 Ncb8 Bef6 Qf8 Rg8 h8R Bed3 Nc7 Ra5 Nca6 Be4 Bc6 Rd5 a5 Rd3 Rab2 Qh1 Rbb1 Re3 Rc7 Bf4 Ra7 Be7 Rh7 Ng4 Qh2 Ra3 Rf1 Rh8 Rfd1 Bfg5 Qh3 Kf4 g8R f5+ Qf7 Bef6 Kg6 Bed3 Qh6 Kg3 Rc7 f4+ Be4 f3 Qg7 f2 Rf8 f1R Rd2 Rf4 Rcb7 Qf1 Rh1 Rh3 Re1 Kh4 Kh7 Nh6 Kh8 Qf3 Bc6 Bh7 Qa2 Qg2 Bd5 Qg4 Rhg1 Rhd3 Rg2 Qh3 Rh2 Nhf7+
1B1br3/2RbQP1k/2qp4/r1r4K/3B1B1P/1qb4n/BNnPnBQ1/1n4N1 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a4 hxg4 Ra3 Nf6 Rb3 Nh5 axb5 Nf6 b6 Ng8 b5 Kf7 Rb2 Ke8 Rb4 cxb4 Ke2 Kf7 f4 g5 h4 Kg7 c4 e5 f6+ Kh7 c5 a5 b7 d6 f5 g3 Kf3 g2 Kg4 a4 f7 b3 b6 e4 c6 e3 c7 a3 Bb2 a2 Rh2 a1B Ba6 e2 Bg7 e1R Ne2 g1N Bc4 b2 Bd4 Nh6+ Kh5 g4 f6 g3 Rf2 g2 Ba2 Ng4 Na3 b1N Nc4 Nh3 Ng1 Qd7 Qe2 Nc6 b8B Rc1 b7 Be7 f8B Bd8 Bba7 Bc3 b8B Ne3 Bh6 Nc2 Nb2 Re8 Bf4 Qe6 f7 Bd7 c8Q Qb3 Bab6 Ra6 Qe7 Ra8 Qb7 Ra5+ Bde5 N6d4 Rf1 Ne2 Bf2 Rb5 Qd5 Rc5 Bed4 Ra5 Nf3 g1Q Qdg5 Qg2 Ng1 Nca3 Re1 Rc2 Rc1 Qc6 Qd5 Bb4 Qdg5 Rcc5 Rc3 Nc2 Rc4 Rd5 Rc5 Bc3 Rc4 Qa8 Rc7 Rdc5 Qd5 Qc6 Qdg5 Bf5 Qg2 Bd7+
Q2N1qK1/brr5/2bPr3/2rbp2Q/4kPB1/Rn1n4/2R1P1r1/N1N1Nr1N w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 g4 f6 b3 Bd7 g5 Qc8 g6 Qd8 Bb2 Bh3 Be5 Bf5 Bf4 Bc8 Bg5 fxg5 f4 Kd7 Kf2 Kd6 Ke3 a5 Ke4 h5 d4 e5 g7 c5 b4 h3 b6 a4 b5 a3 b7 h4 b6 a2 Nc3 h2 Bh3 c4 Qd2 g4 Qd1 g3 Be6 h3 Kf5 g2 Kg6 Ra5 Kf7 Rc5 Bf5 Nd7 b8N Ne7 g8N Nc6 b7 Nb4 Ne7 Rh7+ Kg8 Nd3 Nf3 g1R+ Bg4 Rg2 Na6 Rh6 Ne1 Re6 Rg1 h1B Nb4 h2 b8Q+ Rc7 Rf1 Bb7 Nbc2 N7c5 Qa8 Nb3 Rg1 Bc6 Nf5+ Kd7 Rc1 a1R d6 Rb1 Na2 c3 Na1 c2 d5 Qe7 Ng3 Rb2 Rb1 c1R Rf1 Qf6 Rf3 Rc5 Rc1 Be7 Rc2 Qf8+ Kh7 Bh4 Nc1 Rb1 Nh5 Bf2 Ng3 Nd4 Re3 Rbb7 Rf3 Nb3 Re3 Nb4 Qd3 Bg1 Qf5 Nd3 Qg6 Rcb5 Rf3 Ba7 Qh6 Rc5 Qh5 Rf2 Re3 Bg2 Rf3 h1R Re3 Rhf1 Nh1 Qf6 Kg8 Bf3 Re4 Rg2 Ra4 Bb8 Qa5 Ba7 Ra3 Qf8+ Kh7 Kd8+ d7 Ke7 d6+ Kf6 Qa4 Bfd5 Qa6 Bb8 Qa8 Ba7 Qh2 Qe7+ Kg8 Kg6 d8N Qf6 Bh5+ Kf5+ Bg4+ Ke4 Qh5 Qf8+
4N3/r1RBR2n/n1N4k/Kb4rb/3P1pPn/N2Q2Nb/n1q2P1b/N2Q1b2 w - - 0 1 legal: proof: h4 b5 c4 g5 a4 gxh4 axb5 d5 cxd5 e5 d3 e4 Kd2 e3+ Kc2 Bf5 Bd2 exd2 Qc1 Bd7 Qd1 Bc8 Kc3 f5 e4 Kf7 b4 Kg6 b6 h5 b7 c5 g3 a5 b5 a4 d4 h3 e5 h2 d6 a3 e6 h4 e7 a2 e8N c4 Kb4 h3 b6 c3 Ng7 c2 Qc1 d1B Nd2 Rh5 Bb5 Na6+ Ka5 Qc7 b8Q Rg5 d7 Ra7 d8N Bh5 Qb1 c1N Nb7 Kh6 Bd7 Bd6 Ne2 Qc2 Re1 h1B Nb3 h2 Ne8 Bc6 g4 h1B Qa8 Bhg2 Ng3 Nf6 Re7 Bb5 Qb8 Bf4 Nbd6 Bh3 b7 Nh7 Nc4 Be5 Na3 Bbf1 Ne2 Bh2 Ng3 f4+ Qe5 Bb5 b8N Bb7 Qe2 Bbg2 Qd3 Bf1 Nc5 Ne2 Nb3 Ng1 Qe1 Nf3 Nc6 Nh4 Rc1 a1N Qed1 Qc3+ Kb6 Nc2 Na1 Ncb4 Ka5 Qc5 Nb8 Qf5 Rc7 Na2 Nc6 Qe4 Nb4 Qe2 Nc6 Qc2
2b1nbK1/1n2B2B/5qr1/P1p2q1Q/1QP1N3/b5Bb/BrB1n1kP/n2R1N2 w - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 h5 a4 f5 gxf5 Nh6 b4 axb4 Ra3 Ng8 Rg3 Rh7 Rg2 Rh8 Rg4 hxg4 Kd2 Kf7 Kd3 d5 Kd4 g5 f4 b5 c4 b3 e4 b2 e6+ Kf6 a5 g3 e7 g4 e8B g2 Bd2 g3 Qe2 b4 Bf7 b3 Qd1 Nd7 Bd3 Ra6 Nh3 g1B+ Nf2 g2 Be1 Nc5 Qh5 Nb7 Nd2 b1Q Bg6 b2 Nf1 Rb6 Bc2 Rh6 Bh7 Rg6 Bb3 Qc2 Ba2 b1N Ng3 Nd2 Nf1 Rb2 e5+ Kf7 f6 Ke6 f7 Qf5 Qh4 Ba3 f8Q Nf6 Qb4 Ne8 Qg4 Qf6 Qh5 Nbd6 Kc5 d4 Ne4 d3+ Kc6 Ba7 Bg3 Nb3 Rg1 d2 Rh1 Kf7 Kd5 d1B Rg1 Na1 Rh1 Q5g5 f5 g1N e6+ Kg7 e7 Ne2 Rg1 Nb7 Rh1 Bc5 Rg1 Ned6 e8B Bc2 Ba4 Ne8 B4b3 Bf8 Ba4 Bd1 Bc2 c5 Rh1 Nd4 Rg1 Bg4 Rh1 Bh3 Rg1 Qb6 Rh1 Qg4 Rg1 Ne2 f6+ Kh8 f7 Kg7 Ke5 Qf6+ Kd5 Bd6 f8B+ Kf7 Kc6 Ke6 Be7 Qgg5 Rh1 Kf5 Kd5 Be5 Be1 Kf4 Rg1 Qg4 Bg3+ Kf3 Rh1 Qb6 Rg1 Bg7 Rh1 Bf8 Ke5 Rc6 Kd5 Kg2 Ke5 Ned6 Kf6 Ne8+ Kf7 Qf5+ Kg8 Rd6 Nfd2 Rh6 Rd1 Qbf6 Nf1 Rg6+
2qb1N2/2kq1KQ1/p1P1Q2N/1r1R1br1/nR1n4/PB6/5RP1/1rRqR1qr w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 h4 gxh4 bxc5 Bh6 Qd2 Bg7 Qd1 Bf8 e4 f6 e6 Nh6 e5 Ng8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Ke2 d5 Kd3 b5 e8R h5 f4 a6 c4 d4 Ke4 h3 Kf5 d3 Kg6 h2 f5 e4 a3 d2 f6 e3 e7 h4 f7 e2 Nf3 e1R Nc3 b4 Rb1 h3 Nb5 b3 Ng5 b2 Nh7 Nf6 Nd4+ Kc7 c6 Nfd7 c5 Nb6 Nf5 Na4 Bc4 Qd7 Rd8 Re5 e8R Be7 Qg4 d1Q f8R Ra7 Bg8 Rb7 Nh6 Rb5 Bb3 Rg5+ Kf7 Qc2 Rhf1 h1Q Rfc1 h2 Qd4 Qhd1 Qg7 Qh3 Rd3 h1Q Rd5 Bd8 Ree5 Bf5 Re1 Kc8 c7 Qg1 Re4 Qcc3 Rb4 Nc6 Ra1 Kb7 Rab1 Nd4 c6+ Kb6 c8Q Qcd3 Qe6 Kc7 Re8 Q3d2 Nf8 Qdd3 Ra1 b1R Ra2 Qhg4 Rf2 Q3d2 Ng8 Rh1 Nh6 Bc2 Qeg6 Qc8 Re1 Bf5 Q6f6 Qf4 Qfg6 Qd6 Qe6 Qdd7+
KQ6/1b3B1Q/3n1Q1r/4bRq1/kNp1Nq2/q1P2P1r/1r2npnP/4RQ1Q w - - 0 1 illegal: No proof kernel
NQb2n2/pRq4n/P2b2P1/b1kNPNKB/p6R/qnr3QN/4N2r/5r2 w - - 0 1 legal: proof: c4 g5 h4 e5 hxg5 d5 cxd5 b6 f4 exf4 a4 Bh6 b3 Bg4 a5 Bd7 a6 Bg7 Bb2 Bc8 Bc3 Bf8 Ba5 bxa5 Kf2 Kd7 Kf3 Kd6 g4 f5 e4 c5 d4 h5 g6 a4 b4 h4 g7 h3 b5 h2 e5+ Kd7 b6 c4 g5 c3 d6 Kc6 g6 c2 b7 c1B d5+ Kc5 d7 Qe8 d8N Rh5 d6 Qb5 d7 Qb2 Qb3 Bd6 Nh3 Nf6 g8N Qa3 Nf7 Bd2 d8N Nbd7 b8Q Ba5 Be2 Nf8 Nc3 Rh7 Rhb1 h1R Ne7 Rf1+ Nf2 Rh2 Nh6 Rc1 Ned5 Rf1 Q8b7 Rb8 Bd1 Ra8 Ne2 Rb8 Qa8 Rb6 Qd3 Rb3 Qb8 Rc3 Rb7 Rhh1 Kg2 f3+ Kg3 Rh2 Nh3 f4+ Kh4 f2 Kg5 f3 Rc1 Re1 Rcb1 f1Q Nf5 f2 R1b4 Qg1+ Rg4 f1N Qg3 Nd2 Rh4 Rf1 Ne6+ Kc6 Ndf4 Qb6 Nc7 Kc5 Nfd5 Nb3 Na8 Qc7 Nc1 Rg1 Bh5 Rf1 Ne2 N6h7+
1QR1r3/R1b2B1P/p1qrB3/P2B1n1n/p3P3/2K1NqBb/1Q4b1/Br4kq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Nf6 d4 cxd4 a5 Ng8 Nc3 Rh7 Na4 bxa4 Qd3 Rh6 Qd1 Rh8 Kd2 Ke7 h4 Ke6 e4 d5 c4 g5 b4 f5 c5 a6 b5 d3 h6 d4 c6 f4 b6 f3 b7 g4 h5 g3 h7 f2 h6 g2 c7 Nd7 b8Q Bd6 Qb4 Ne7 Qb5 Qe8 Nh3 g1Q Qc2 Nf6 Qb8 Qc6 Qcb2 Rd8 h8B Nh5 h7 Qg2 Rg1 Qh1 Rg7 Nf5 Rf7 Bd7 c8B Bc7 Ra3 Re8 Rc3 Ra7 Be2 f1B Nf2 Rb7 Nd1 Bg2 Bg4 Rb5 Bb7 Rd5 Bf6 Rd6 Bh4 Bc8 Bg3 Bd7 Qb1 Bc8 Bb2 Bd7 Ba1 Bc8 Kc1 d2+ Kb2 d3 Ne3 d1R Rc4 d2 Kc3 Re1 Qb2 Rb1 Rg7 d1Q Ba8 Bb6 Ra7 Qf3 Rc5 Bc7 Rc4 Kf7 e6+ Kf6 e7 Kg5 Bb7 Qd7 Bd5 Qc6 Be5 Kh4 Bf4 Nh6 Bge6 Nf5 Bg3+ Kh3 Rc5 Rf8 e8B Rg8 Be1 Kh2 Bg3+ Kg1 B8f7 Re8 Bg8 Nd4 Bef7 Bch3 Bfe6 Qa8 Bgf7 Nf5 Rc6 Bb6 Rc8 Bc7 Bg6 Qb7 Bgf7 Qc6+
1QN1bn2/4NNN1/2b1R2p/1Nk2r1r/5q2/3K1rpB/PQPb2Pn/b1b4R w - - 0 1 illegal: No proof kernel
Q1r1RB2/3qr2K/5NR1/2R1Rp2/1PrQ1r2/1b2qPn1/1p2RP1b/2k1Nn1r w - - 0 1 illegal: No possible last move, all moves rejected
Qn6/1n1b1PBq/2N5/1B1bbQpR/nBP4K/BB5p/4kNbP/2q2rr1 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a4 e5 axb5 f5 Ra3 e4 Rd3 exd3 gxf5 Qh4 Nh3 Qe7 Ng1 Qd8 c4 Ke7 f4 Kf6 Kf2 h5 Kg3 a5 e4 d5 b6 a4 b7 h4+ Kh3 g6 b5 d2 b6 a3 Qa4 d1B Qa6 a2 Ba3 a1Q Ne2 d3 Nd2 d4 Qa5 Bd7 Rg1 Qc1 Rg5 Bg7 Rh5 Qc7 Qc5 Nh6 e5+ Kf7 e6+ Kf6 e7 Rf8 e8B Nf7 Kg4 h3 Kh4 Nd8 Bg2 B1a4 Bf3 Bac6 Bb4 Ra1 Qb5 Na6 b8B Bd5 b7 Bh8 Ba7 Nb8 Bac5 Rf7 Ba3 Rb1 Bcb4 Ra1 Nb3 d2 Ng3 d1N Na5 d3 Nh1 d2 Nf2 Nc3 Nc6 Na4 Bd1 Rb1 Bb3 d1B Qc5 B1f3 Qb5 Bg2 Qa5 Na6 b8Q Nb7 Qa8 Nb8 Qb5 Re7 Qc5 Re1 Qca5 Rf1 Qb5 Bc8 Qba5 Qh7 Bd7 Kf7 f6 Bg7 Be8+ Ke6 f7 Bd7 f8B Bb2 f5+ Kf6 Ne7 Ke5 f6+ Kd4 f7 Ke3 Bg7 Ke2 Nc6 Rg1 Qd8 Be5 Qf6 Qc3 Qg5 Rbf1 Qf5 Qc1 Ne7 B7e6 Bb5 Bd7 Nc6 g5+
r2QNk1N/Rqnn2br/q2P4/4p1PQ/1K3N2/2N1B1pR/5qPq/1n3b1N w - - 0 1 illegal: No proof kernel
4Rq1B/b3BN1r/4bp2/3BQP2/PB1P3k/q1bb3q/1pBr3n/3KRnQ1 w - - 0 1 legal: proof: d4 a5 c4 d5 g4 h5 Na3 e5 Nc2 e4 Nb4 Qd6 cxd5 Qd8 Nd3 exd3 b4 axb4 gxh5 Qd6 Bf4 Qd7 Bc1 Qd8 e4 Ke7 f4 Kf6 h4 b5 d6 g5 h6 c5 d7 d2+ Ke2 b3 a3 g4 h7 g3 h5 b2 f5 Kg5 h6 b1B e5 f6 e6 g2 e7 b4 e8B b3 Bg6 c4 Rh4 c3 Qc2 Ne7 Ra2 Nbc6 Rf4 Nd5 Re4 Bb4 Re5 Ne3 Re8 Kh4 Bf7 Ne5 Ra1 N5g4 Nh3 g1B Qd1 c2 Ng5 Bh2 Bd5 Bb8 Nf7 Ba7 a4 Nh2 Ba3 c1Q Bfg2 Nef1 Bge4 Rb8 Bc2 Bc3 Bb4 Qa3 Qc1 Qe7+ Kd1 Qf8 d8B Be6 Bde7 b2 Bed6 Rg8 h8Q Rg2 h7 Rb7 Qg7 Re2 h8B Re7 Qg1 Rf2 Nh6 Rh7 Be7 Re2 Nf7 Rg2 Bcb3 Bd3 Bc2 Bc8 Qe3 Rg6 Qe5 Be6 Qb1 Be4 Ke2 Ne3 Ba2 d1Q+ Kf2 Bd3 Bd5 Qg4 Qg1 Nef1 Rd1 Qh3 Re1 Be4 Ke2 Bd3+ Kd1 Rg2 Bbc5 Rf2 Bb4 Rd2#
BnbrQNr1/5p2/K1n2p2/n1b2PR1/B7/3kn2B/PB2R1QP/q1Bq1q2 w - - 0 1 illegal: No possible last move
2bnnNkr/1b2p2N/2Q1PP2/b1rpBN1K/2Nnq1N1/2R2R2/2Q1P1q1/2b5 w - - 0 1 illegal: No proof kernel
5q1R/1K2brN1/6PR/nQ1P3p/Bq2rB2/q2Qrpnb/2B4P/krB3B1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Nc3 f3 Nd5 d6 Nf4 d5 cxd5 gxf4 Kf2 Ke7 b4 Kd6 g4 Ke5 e4 Kd4 g5 f5 e5 h5 e6 c5 d6 a5 e7 c4 e8B a4 b6 a3 b7 c3 d7 c2 b5 a2 b6 Be7 Nh3 Ra7 Rg1 Ra3 Bd3 Nc6 b8B Na5 b7 Qb6 d8B Nh6 Ba4 Re8 Re1 Qc5 Re6 Qb4 Bbc7 Rb3 b8Q Rc3 Rb1 a1Q Qb5 Qaa3 Be4 Rb3 d3 Kc3 d4 Bd7 d5 Bc8 Bb6 Bd7 Bdc7 Bc8 Bce3 c1R Bc2 Bd7 Ra1 Kb2 Qdd3 Rb1 Rf6 Be6 Rf8 Rc3 Rh8 Rc4 g6 Re4 Ng5 Bc8 Ne6 Bd7 Ng7 Bc8 Bd1 Bd7 Kf1 f2 Ke2 f1R Bdc2 Rf3 Bd6 Rf8 Bdc7 Rf7 Rh7 Rg3 Kf2 f3 Bcf4 Rgg1 Bd2 Rge1 Kg3 R1e2 Bg1 f2 Rh8 f1Q Bde3 Ng4 Rh6 Nf2 Kf3 Qd1 Bd2 Nh1 Bde3 Ng3 Bd2 Qab3 Ra3 Qa2 Bc1+ Ka1 Rc3 Qaa3 Rc8 Qdd2 Rch8 Qc5 Bd6 R4e3+ Kf4 Qc8 Bc7 Qf8 Bb8 Ne4 Ke5 f4 Kd4 f3 Bf4 Bh3 Ke5 Qe1 Kd4 Qeb4+ Ke5 Bf1 Ke6 Re1 Kd7 Bh3+ Kc7 Ng3 Kb6 Re4 Ka6 R1e3 Kb6 Nb3 Kb7 Na5+
1q1Q4/1bn1Qnbp/p6N/Nk3r1b/2NP1N2/2B1q2P/1N1PRK2/r2R1b1r w - - 0 1 legal: proof: f4 d5 a4 g5 c3 gxf4 e3 b5 axb5 e5 Be2 e4 Bf3 d4 cxd4 exf3 b4 Kd7 g4 f5 h3 c5 g5 c4 e4 c3 e5 c2 g6 a6 g7 Bb7 b6 Kc6 e6 Nh6 g8N Nf7 e7 Bg7 e8N Kb5 Kf2 Nd7 Ne2 Qb8 Nh6 Rg8 Bb2 c1R Re1 Nc5 Bc3 Ne6 Qb3 Nc7 Qe6 Rd1 Qe7 Rf8 Kf1 f2 Nd6+ Kc6 Kg2 f1B+ Kf2 f3 Nf4 Be2 Nc4 Kb5 Nb2 Rg8 Nfd3 f4 Na3+ Kc6 Nac4 Kb5 Ra3 Ra1 Rd1 Bf8 Rb3 Rg1 Ra3 Rh1 Ra5+ Kc6 Re5 Bg7 Re4 Kb5 Re3 Qh8 Re6 Rf8 Re3 Be4 b7 Qg8 b8N Bb7 Nc6 Qh8 Rg1 Bd1 Re2 Qg8 Kf1 f2 Kg2 f1B+ Kf2 f3 N6a5 Bc2 Nf4 Bg6 Ne3 Bh5 Nec4 Bg2 Rd1 Bf1 Qd6 Rd8 Qe6 Rd5 Qe7 Rf5 Nbd3 Ka4 b5 Qb8 b6 Kb5 Ndb2 Bc6 Ke3 f2 b7 Qh8 b8Q+ Bb7 Qa8 Qb8 Ne5 Bfg2 Nec4 f1Q Ng6 Qe1 Nf4 Qh8 Qad8 Bf1 Qdd6 Qb8 Qed8 Qh4 Q6e7 Qg4 Kf2 Qf3+ Ke1 Qd3 Kf2 Qe3+
NnB2nr1/6qk/5pq1/R1p1N3/1Q6/1Qqr1bP1/R1P1RPqK/bR4bR w - - 0 2 illegal: No possible last move
3Q3q/QBrpnr2/1Bp2n1k/Kbb4q/BbP5/1qRP4/4bNP1/4BR1B w - - 0 2 illegal: Other
qQR5/Q2rkB2/N1pp4/B2rn3/nBN3qP/nr2b2B/2PP1nbB/6K1 w - - 1 2 legal: proof: e4 f5 exf5 g5 f4 b5 a4 Bg7 axb5 Bf8 b4 h6 g4 gxf4 g5 h5 Ra3 Ba6 Rg3 Bc8 Rg4 hxg4 Kf2 e5 h4 a5 g6 c6 g7 e4 b6 e3+ Kg2 f3+ Kh2 a4 f6 f2 f7+ Ke7 b7 a3 b5 g3+ Kg2 e2 b6 e1N+ Kh3 g2 Kh2 d6 Ne2 a2 Na3 a1R Nc4 R8a3 Nc3 Rb3 Rg1 Rh7 Nb5 Nd7 b8Q Nd3 b7 Ngf6 g8B Ne4 Nc7 Nc3 Na6 Na4 Ba3 N7e5 Bb4 Bh6 Qh5 Bh3 f8B+ Kf6 Be6 Rd7 Bg7+ Ke7 Bf7 Be3 Qh7 Qa5 Bh6 Ra2 Bf4 Rab2 Nc5 Qa8 Na6 Rb1 Bc5 Rb5 Bb4 Rb3 Qg7 Ng6 Qd4 Nge5 Qda7 Rc5 Qc8 Rd5 b8B Bg4 Bc7 Bf3 Bca5 Be4 Be2 Bf3 Qcb8 f1N+ Kh3 Be4 Bg4 Bf3 Bh2 Be4 Rh1 g1Q Bge6 Qg7 Rg1 Qg6 Rg3 Qh5 Rf3 Nf2+ Kg2 Qf5 Kg1 Qg4+ Rg3 Bg2 Rf3 Bh6 Rf5 Ne3 Rh5 Bg5 Rh8 Bf4 Rc8 Bh6 Nb6 N3c4 Bf5 Na3 Nc4 Be3 B5e6 Qg3 Bh3 Qg4
N1R3BR/2P2r1p/4b2b/2Qn2pb/B6n/K1n1qb2/P1qr3P/B1kBBQ2 w - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 e5 b4 exd4 Nc3 c6 Nd5 c5 bxc5 Qh4 Nb4 axb4 Bg2 Qf6 Bf1 Qd8 Kd2 Ke7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 f4 g5 c6 d5 c5 b5 f6 d3 f5 d2 f7 Ke3 c7 d4 c6 d3 f6 Ra4 Nf3 Ra5 Bb2 Qe8 Ne5 Ra7 Nd7 Qe4 Rc1 Na6 Nb6 Bh6 f8Q Ne7 f7 Nf5 Na8 Nh4 Ba1 Be6+ Rc4 Qf4 c8B Nc7 Qc5+ Qd4 f8B Nd5 Bd6 Rf7 Bg3 Rd8 Be1 Rdd7 Qb1 d1B+ Rc2 d2 Qc1 Kf4 e4 Ke3 e5 Bh5 Bc4 Rd6 Qb1 d1B Rf1 Bdf3 Be2 Rdd7 Bd1 Kd3 Bb7 Qe3 Kb2 b3 Ka3 b2 Qc1 Beg4 e6 b1Q e7 Be6 Rc4 Qc2 e8B Bh1 Rf6 B1f3 Rg6 Rd6 Rg8 Rd8 Rh8 Rdd7 Qb2 Rd8 Qf6 Rd6 Bf2 Kd2+ Rc3 Kc1 Be1 Nc7 Qf4 Rd2 Qfc4 Nd5 Qf1 Rd7 Bf7 Rc7 Bg8 Re7 c7 Rf7 Rb3 b4+ Ka4 Qc4 Bc6 Qcc3 Ra3 b3 Bb5 b2 Rb3 Rf6 Ka3 Rf7 Bd7 Qc2 Ba4 Qe4 Rb8 Qe2 Rc8 Qe3+ Bb3 b1N+ Ka4 Nbc3+ Ka3 Qg6 Ba4 Qc2
8/r1N2QKr/1r3pBN/1Q3q1p/QbRr1P1P/n2b3b/1PQ3Bn/1Qb1k3 w - - 1 2 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Ba3 d4 Bf8 d6 Nd7 d5 Nb8 Kd2 g5 Ra4 g4 f3 g3 Rd4 exd4 Kd3 Qe7 Be3 Qg5 Bf2 Qd8 Kd2 gxf2 Kd3 Kd7 Ke4 a5 Kf5 c5 g4 h5 h4 c4 e4 c3 g5 d3 e5 d2 f4 c2 e6+ Ke8 g6 c1B b6 a4 d7+ Ke7 b7 Kd6 g7 Kc5 d6 Kb4 e7 a3 e8B a2 Nf3 a1R Nh2 f6 Kg6 Na6 Nc3 Ra7 Ng4 Nc7 b8Q+ Nb5 Bg2 f1B Nd5+ Kc4 Nc7 Kd3 Nh6 Na3 Qa4 Ke2 Qbb5+ Ke1 Rh3 d1R Rc3 Rd2 Rc4 Rd4 Qc2 Qe7 d8Q Qe6 d7 Bb4 Bf7 Ra6 Qe8 Rb6 d8Q Bd7 Qa8 Bd3+ Qf5 Qe4 Qaa4 Be6 Qeb5 Qe5 Ng4 Nh6 g8Q Bc8 Kg7 Qe6 Ne3 Ng4 Bg6 Nh2 Qf7 Qe5 Qe4 Bh3 Qb1 Qf5 Ng4+ Kd2 Qec6 Ke1 Nh6 Nc2 Qb3 Ra7 Q3a4 Na3 Qac2 Rdd8 Qba4 Rd4 Qcb5 Rh7+
brrbBB2/2k2N1K/Bpq3P1/pP4QB/1rR1Qq2/P3RnB1/q3q3/6q1 w - - 0 1 legal: proof: g4 e5 h4 d5 f4 exf4 c4 g5 cxd5 Nc6 h5 Nce7 Nc3 Ng6 hxg6 Bf5 Nb5 Bd7 Nd4 Bc8 Ne6 f3 Nf4 gxf4 g5 Bf5 Rh6 Be6 Rh1 Bc8 Kf2 Kd7 d4 c5 b4 a5 e4 h5 d6 f5 a3 c4 d5 b6 g7 c3 e5 h4 Rh3 c2 Qe1 Nf6 g8B Nh7 Ba6 Rb8 b5 Bb7 Bf7 Be7 Bh5 Qg8 g6 Ba8 Qe4 Ng5 e6+ Kd8 d7 Kc7 Rb1 Bd8 e7 Rh7 Bb2 c1R e8B Rc4 Bg7 Rh8 Rg3 h3 Bf8 h2 Rb4 h1Q Nh3 Rd4 Ra4 Qc1 Rb4 Qc6 Rc4 Rc8 Rc2 Rb4 Rc4 Ne6 Ng5 Nd4 Nf7 Rb8 Ke1 f2+ Kd2 f1Q Re3 f3 Kc3 Qg1 Kd3 Rc8 d6+ Kb8 Kc3 f2 Kd2 f4 Kd3 Bc7 d8B f3 Bh4 Bd8 d7 f1Q+ Kd2 f2 Bg3+ Bc7 d8Q Qe2+ Kc3 f1Q Qde7 Nf3 Qg5 Ne1 Kd4 Qf4 Bf2 Bd8 Bh4 Qff1 Ke5 Kc7 Bg3 Nf3+ Kf5+ Ne5+ Qf3 Qg7 Bd7 Rb8 Bc5 Bf6 Be7 Rhd8 Be8 Rdc8 Bf8 Qa1 Qd5 Qd4 Qh1 Qh4 Qe4 Bd8 Nd6 Nf3 Ke6 Qc3 Kf7 Qcd3 Kg8 Qf4 Kh7 Qb3 Nf7 Qba2
3n2KN/1qr4Q/3pR1P1/R1rP3Q/B2np1q1/4r3/Qqq1P2Q/1b1QnkB1 w - - 0 1 legal: proof: g4 b5 b4 g5 a4 f5 h4 Bh6 Na3 fxg4 axb5 g3 b6 g4 Nb5 Bg5 hxg5 Kf8 Nc3 Ke8 b5 c6 Na2 c5 Nb4 cxb4 c4 Kf7 f4 Ke6 d4 Kf5 Kd2 Ke4 g6 h5 f5 a5 d5 e5 b7 g2 c5 a4 f6 h4 b6 h3 c6 h2 c7 d6 f7 b3 Kc3 b2 Kc4 b1Q f8Q g3 Be3 a3 Nh3 g1N Qg7 g2 Qh7 Bf5 c8Q Nf3 Bg1 Qc2+ Kb5 Nc6 b8Q a2 b7 Ne1 Qa7 Nh6 b8Q Qc7 Ng5+ Kf4 Qcb7 Kg3 Nf7 Rc8 Nh8 Nf7 Qh5 Nfd8 Qba6 Be4 Qbb6 Qb8 Qah7 Ra7 Qbb7 Qa8 Q7h6 Bf5 Qbh7 Nd4+ Kb6 Rc3 Qc4 Raa3 Kc7 Be4 Kd7 Qb7+ Ke8 Rab3 Qc6 Rc5 Kf8 Re3 Kg8 Bd3 Qa6 e4 Rb1 a1Q Qa2 Qac3 Rb5 Q2b2 Ra5 Bb1 Ra8 Qcc2 Rb8 N8c6 Re8 Nd8 Re6 Rb3 Be3 g1Q Bh3 Qg2 Rf1 h1R Bg1 Re3 Rf7 Qf3 Bg4 Kg2 Bf5 Qa6 Ra7 Qab7 Ra5 Kf1 Qf4 Rc7 Qfh2 Qg4 Re7 Qc4 Qc2 Nd3 Bd7 Ke1 Re6 Qc5 Ba4 Qcc3 Q2h3 Qcc6 Bh2 Kf2 Ra6 Rc1 Qd1 Ne1 Ra5 Rc2 Q3h4+ Kf1 Bg1 Qcc3 Qh1 Qd2 Q1h4 R2c5 Qh2 Qdc2
3r3Q/Q1pk1N1r/Rpqq1b2/1q1b4/1PPbBN2/2r2nR1/K2P3R/1R1q1R2 w - - 0 1 legal: proof: e4 g5 a4 d5 f4 dxe4 fxg5 b6 a5 Nc6 a6 Na5 g4 h6 b3 Qd3 g6 Bb7 g7 Rh7 g5 Bc8 g6 Qd5 Bb2 Rh8 Bf6 Nb7 axb7 Qd8 Bg5 hxg5 b8Q a5 h4 e5 h5 f5 c3 e3 h6 g4 h7 e2 b4 e4 Na3 a4 Nc2 f4 Rh2 f3 Rf2 a3 Rg2 a2 Rc1 a1B Ne3 g3 Rf2 g2 Rb1 Kd7 Nc4 Nh6 g8R Bg7 Rf8 Nf7 Nh3 g1R Rh2 Ne5 Nf4 Bb7 Nd6 Bd5 Nf7 Bf6 g7 Rg3 g8R Qe8 Qb7 Rd8 Qa7 Qe6 Rg6 Qc6 Bg2 Rh3 Rg3 Bb2 Kf2 Ba1 Ke3 e1Q+ Kd4 e3 Qb3 e2 Qb2 f2 Be4 f1Q c4 Qd1 Kc3 e1Q Qa3 Qh5 Kb3 Nf3 Ka2 Qd1 Qa7 Qg1 Qe5 Qgc5 Qc3 Q5d6 Qe5 Rg8 h8R Rg7 Rhg8 Rh7 R8g5 Be7 Qh8 Bd4 Re5 Bf6 Rf5 Be6 Ra5 Qhb5 Ra6 Bd5 Rg1 Bg5 Rf1 Bgf6 Rg8 Ne1 Rg5 Rc3 Rg3 Nf3
b1Q1qRBr/3B2n1/1rNK1n2/N1r1p1p1/3r2Pr/4P1Bn/nP3B2/3kBQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 h4 d4 cxd4 f5 e6 Ra3 Ke7 f6+ Kd6 Rg3 Be7 fxe7 hxg3 Kd2 Kc5 Kd3 Kb4 Ke4 a5 Ke5 f5 e8Q d5 c4 g5 h4 d3 b6 d4 e3 f4 c5 f3 h5 f2 c6 a4 b7 d2 h6 g2 c7 d3 h7 a3 Qe2 Kb3 Rh3 Kc2 Qb5 a2 Qe1 d1R Rh2 a1R Bd2 R1a5 Nf3 Nd7+ Kd6 g1N b8B Nh6 Qb7 Rc5 Ne5 Nh3 Nc6 Ra6 Qa8 Bb7 c8B Nf6+ Bd7 Qe8 Na3+ Kb3 Bc7 Rb6 Nc4 Kc2 Qc8 Ba8 Bb4 d2 Na5 Kc1 Bc4 f1R Rf2 Rh1 Qf1 Kc2 Bc3 Rh2 Be5 Kc1 Bb8 Rh1 Bg3 Nf5+ Kc7 Ng7 Kd6 Re1 Rf4 d1N Bf2 Nc3 Ba2 Kd1 Bd5 Rg8 h8B Na2 Rf3 Ngh5 Bg7 Rh8 Bf8 Ng7 Be7 Nh7 Rf8 Rh2 Bf6 Rh1 Be5 Nf6 Beg3 e5 Bg8 Ng1 Bc7 R1h4 Bd8 Nh3 Nb3 Rbb5 Ba5 Rb6 Bb4 R4h6 Na5 Rh4 Qg2 Re2 Bbe1 Rec2 Qh1 R2c4 Qf1 Rd4+
1r1Q1K1Q/k7/p1p1p3/P3NQ1R/PPr5/2b2r2/1Q1nQnbR/1Nq1nbB1 w - - 0 1 illegal: No proof kernel
k1B1q3/rp6/r1n2PnK/p1PNQ1b1/6Rp/1q1NB1rP/1N1N1bb1/2NQ4 w - - 0 1 illegal: No possible last move, all moves rejected
8/1r1r1b2/N1qn1Qrk/4b2N/2nb2B1/2qpPPBp/QpRP1B1K/4B1B1 w - - 0 1 illegal: No proof kernel
3b1Q1r/3K3p/nn3QrB/NQ5R/3NP2P/2Rrpb1p/2PQ1q2/4Qqnk w - - 0 1 illegal: No proof kernel
r2N1B2/bQn1R2R/Bp1R4/prQnbPk1/4prq1/1P5P/K3R3/R4b1q w - - 0 1 illegal: No proof kernel
1b1Q2Q1/R1qpp2R/1pnn2N1/2NnrPrq/1RRP4/1Kb3B1/1P2R3/q6k w - - 1 2 legal: proof: e4 c5 a4 h5 g4 hxg4 d4 f5 exf5 c4 a5 b6 a6 Bb7 Bd3 cxd3 axb7 Rh7 Ra4 Rh3 Ra1 Rh8 f6 Kf7 Kd2 Kg6 Kc3 Kf5 f4 Ke4 h4 g5 h5 a5 f5 d2 f7 g3 h6 g2 h7 g4 Rh4 a4 Ra3 Nf6 Ne2 Kf3 Rh2 g1B Rb3 g3 Rb4 a3 Kb3 a2 c4 a1Q c5 g2 c6 Bh6 f8Q Ra5 c7 Ne4 c8R Rg8 Rcc4 Nc6 b8R Rg7 Qe1 d1N h8R Ndc3 Rb7 Bd2 Ra7 Bf2 R8h3+ Bg3 Rh7 g1Q Nf4 Qh1 Re2 Qh5 Qg1 Qc8 Qd8 Bh2 Nh3 Bb8 Nf4 Re5 Qg5 Nd5 Nc3 Qc7 Na4 Rg6 Nc5 Bc3 Be3 Rg7 Bf2 Nd6 Bg3 Rg8 Qg6 Rg7 Qf7 Rg4 Ng6 Rg5 Re4 Kg2 Qfg8 Kg1 Re2 Kh1
1n1n3q/k1p2NQ1/2nR4/3Qp1R1/PN2K2P/1N1NP2b/2rp1Nnr/r1b4B w - - 0 1 illegal: No proof kernel
2BB4/pP2p2q/7r/PK2bR2/6Bn/1Q1B1BbQ/p1r1PrN1/kbb2n1N w - - 0 2 legal: proof: b4 c5 d4 f5 dxc5 g5 a4 b5 h4 g4 a5 Qc7 Ra4 bxa4 Rh2 Qe5 Rh1 f4 g3 Qg5 hxg5 fxg3 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 c3 h5 g6 d5+ Kb5 a3 g7 d4 f3 a2 c4 g2 c6 g3 c5 h4 c7 h3 c6 d3 f4+ Kd4 f5 h2 f6 d2 f7 Rh6 Na3 Kc3 Qa4 d1R Nh3 g1B Nc4 g2 Be3 Nf6 g8B Rd2 Bb6 Bg7 f8Q Be3 Nf2 g1B Bg2 Ne4 Bf3 Rc2 Qf5 Ng3 Qh3 Bc1 Ne3 Kb2 Bh7 Ka1 Bd3 Nd7 Ng2 Ne5 Qb3 Bf5 c8B Ng6 Bd8 Be5 c7 Nh4 Bd7 Be4 c8B Nf1 Bdg4 Bf5 Ka4 Rb8 b5 Rbb6 Kb4 Rbf6 b6 Bh7 b7 Rf4+ Ne4 Bf2 Kb5 Bg3 Rg1 h1Q Nf2 Qh2 Nh1 Rf5 Bd5 Rf2 Bdf3 Rc7 Bc4 Bb1 Bd3 Nd2 Rd1 Nf1 Rd2 Rc4 Rc2 Rc7 Rc5 Rcc6 Rd5 Rc2 Rc5 Beb2 Rg5 Bbe5 Rf5 Rh8 Qa4 Ng6 Qh7 Qh6 Qa3 Qg7 Qh3 Rh6 Qa4 Nh4 Qb3 Qh7
4RqRn/5pNp/R1P5/1k2NP2/4Rrpr/b2q1br1/rn1PB3/Q2QK1R1 w - - 0 1 illegal: No proof kernel
6QN/nqpN1Rq1/kNP5/r1qpR2P/2b1Q2K/1rN1B3/1N1P1pb1/n1q5 w - - 0 2 legal: proof: a4 e5 g3 b5 axb5 e4 f3 exf3 Kf2 Nf6 Ke3 f2 Kf3 Ng8 Kg2 Bc5 Ra4 Bb4 Ra1 Bf8 Kf3 f5 Ke3 h5 Kd4 f4 Kc3 f3 Bh3 Bd6 Bg4 Bf4 gxf4 hxg4 Kd4 f1B Ke5 a5 Kf5 g5 c4 g3 Kg4 d5+ f5 Kd7 h4 a4 b4 g2 e4 a3 b6 Kc6 b5+ Kb7 e5 f2 e6 a2 c5 Rh5 e7 Ra3 e8Q Ra8 Ne2 Na6 c6+ Kb8 b7 Ka7 b8N Qf6 Bb2 Nc5 Na3 Nb7 Nc3 Nc5 Nd7 Qf8 b6+ Ka6 b7 Nb3 f6 Ne7 f7 Bc4 Qc2 g1Q+ Kh3 Ra7 Re1 a1Q Re5 Qac1 Qe4 Na1 Qd8 Qg7 f8N Qgd1 Rh2 Qb3 Ng6 g4+ Kg3 Qb4 Nh8 Qc5 Nb6 Bf5 Rg2 Nc8 Qg8 Ra8 Rh2 Na7 Rh3 Rg5 h5 Qb1 Kh4 g3 Qd4 g2 Qe4 g1Q Rf3 Bh3 Rf7 Qgc1 b8N+ Ka5 N8d7 Bg2 Nf6 Rg3 Nfd7 Be2 Nac4+ Ka6 Ba3 Qbb4 Nb2 Bc4 N6a4 Qb7 Nab6 Qa5 Be7 Qc5 Bg5 Rf3 Nb5 Ra3 Nc3 Rb8 Bf4 Ra5 Be3 Qc8 Na8 Rb3 Nab6 Qb7
3R2K1/2kq2Pp/5R1b/p2bR1p1/q3RQ2/4qBB1/PN2Q1PR/nqr2r1q w - - 0 1 legal: proof: e4 c5 b4 d5 h4 g5 e5 Nd7 h5 d4 bxc5 f6 Na3 fxe5 Nc4 e4 Ne3 dxe3 Rh4 Ne5 Rh1 Ng6 hxg6 Be6 Qf3 Bh3 Qd1 Bc8 Ke2 Kd7 c4 a5 d4 b5 f4 e5 c6+ Kd6 c7 b4 d5 b3 f5 b2 f6 b1Q c5+ Kd7 f7 Qb4 d6 Ra6 c6+ Ke6 d7 Qd6 Nh3 Bh6 f8R Bb7 c8Q Qa3 c7 Ne7 g7 Nc6 Rh2 Nb4 Nf2 Rc6 Qb8 Nc2 c8R Qa4 Nd3 Rg8 Rf3 Rf8 Rf6+ Kd5 Rb1 Na1 Rb4 Rc2+ Bd2 Rc1 Be1 Qe7 d8R+ Qed7 Bg3 Ba8 Ke1 e2 Kf2 e3+ Kf3 e1Q Be2 Qh1 Re4 Bb7 Qd2 Bc6 Bd1 e2 Nb2+ Kc5 Qc7 e1Q Qe2 Qeb4 Qd6+ Kb6 Re8 Kb7 Rcd8 Bd5 Re6 Qc5 Kg4 Qe3 Kf5 Rf7 Qf1 Rf8 Bf3 Rf7 Qe2 Rf8 Rd4 e4 Qf4 Rf7 Ke5 Kc7 Ree8 Qd3 Ree6 e3 Re4 Qb1 Kf5+ Qd6 Re5 Rf8 Qd3 e2 Qb5 e1Q Qa6 Bc6 Qe2 Qdd1 Ke6 Bd5+ Ke7 Qeg1 Rg6 Rf5 Rf6 Qe3 Kf8 Bc6 Qh4 Qd7 Kg8 Rf4 Bg4 Rff1 Bf3 Ba8 Qf4 Bd5+
b1nn4/R2p1B1r/K2pr2Q/p1qqpN1q/Nk6/2bP4/1BP1P2N/N4N1Q w - - 0 2 legal: proof: f4 g5 a4 b5 axb5 h5 b4 Bg7 Ra6 Bf8 Rd6 cxd6 g4 hxg4 fxg5 Rh6 Bh3 Rh4 Bf1 Rh8 h4 e5 b6 Ke7 b5 f5 d3 a6 Kd2 g3 Kc3 g2 Kc4 f4 g6 f3 g7 f2 b7 Nh6 g8N+ Ke6 h5 Qf6 b6 Qg5 Bb2 Nf7 h6 Qh5 h7 Qg5 Nd2 Nd8 Ne7 Nf7 Nf5 Qe7 Ngf3 g1Q Nh2 Nc6 b8N Qe8 b7 Bh6 Bg2 Nfd8 Ndf1 Ne7 Nc6 Bd2 b8N Bb7 Na5 Qh5 Nb3 Bc3 Na1 Nc8 Qc1 Re8 h8Q a5 Kb5 Be4 Qch6+ Kd5 Na6 Re6 Nc5 Rb8+ Ka6 Bf3 N1g3 f1Q Na4 Qc5 Rg1 Qff2 Rb1 Qfd4 Ngf1 Kc6 Bh1 Qdd5 Bg2 Rb4 Bh3 Rh4 Bg4 Qg5 Bh5 Bh1 Bf7 Bf3 Q6f8 Rh7 Qh6 Qh4 Q8g7 Be4 Qg2 Qh5 Qh1 Qe3 Nb6 Kc5 Na4+ Kb4 Qf8 Qa2 Qh6 Ba8 Bc1+ Qb3 Rb2 Qf2 Rb1 Qc5 Rb2 Ka3 Rb1+ Ka2 Ba3 Qbd5 Rb7 Bb4 Bb2 Bd2 Bd4 Ka3 Ra7 Kb4 Bb2 Bc3
k2B1n2/1R5Q/1p1Pp1K1/1b1N4/1p1BQ2q/1B1Bpr2/PP3bRn/B1b3rb w - - 0 1 illegal: Other
Qr1r1Rb1/p2bBr1Q/P2qkpK1/2P1p3/1rR1n1N1/2Rpb3/1N2P1R1/6R1 w - - 0 1 legal: proof: c4 g5 d4 c5 dxc5 h6 b4 Bg7 g4 Nf6 f4 Rg8 b5 Rh8 c6 Bf8 c5 Ng8 c7 Nc6 bxc6 gxf4 g5 h5 Bh3 Rh7 Bf5 Rh8 Bg4 hxg4 Kf2 b5 a4 e5 h4 Ke7 h5 d5 g6 g3+ Kf3 d4 Ke4 d3 a5 f3 a6 g2 g7 b4 h6 f2 h7 f1B Na3 b3 Nh3 g1R Nf2 b2 Ng4 b1R Bg5+ Ke6 Nc4 Qe7 Nb2 Qf6 Ra3 Be7 Rc3 Rg2 Rg1 Bd7 c8Q Bd8 c7 Rb8 Qc1 Qh6 Be7 Rf2 Qe1 Rf3 Qh4 Bg2 Qb7 Qf6 c8R Ba5 Qa8 Rf4+ Ke3 Bd5 Rf8 Rbf1 Qh3 Rfb4 Qh1 Qg6 Qe4 Nf6 g8R Bb3 Rg7 Rg8 h8R Bd5 Qh1 Ne4 Rh2 Bd8 Rhg2 Rf4 Qh7 Ba2 Bd6 Bg5 Rgc1 Qf6 Rc4 Qd8 R1c3 Qb6 Be7 Qd6 Rc8 Rf8 Re8 f6 Rc8 Rf7 Rf8 Nf2 Rg6 Rd4+ Kf3 Bb3 Kg3 Bd2 Kh4 Ne4 Kh5 Be3 Rg7 Ba2 Kg6 Bb5 Nf2 Qd8 Rg4 Kd7 Kh5 Rd6 Rgg8 Rg7 Rd4 Bf7+ Rg6 Ke6 Rdc4 Qb6 Nfd1 Rdd8 Nf2 Bd4 Kh6 Bd7 Rg4 Qd6 Rg1 Rg3 Rg6 Bg8 Kg7 Be3 Rg5 Rf3 R5g2 Rf5 Ng4 Rg5+ Kh6 Rg7+ Kh5 Rf7 Kg6 R8b7 Nh2 R7b5 Ng4 Rbb8
1kqb1R2/1p1Qq3/2p3Qb/1P2r1PR/2N1p1b1/2RB2Kb/npPB3R/3Rn3 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 a5 b5 Qd4 Nc3 Qd6 Nd5 Qd8 h4 Nh6 g4 Nc6 h5 Ra7 g6 Ra8 g5 Ng8 Nb4 axb4 g7 Ra6 Ba3 Nb8 Bc1 Rg6 hxg6 Qd3 Be2 Qd7 Bf1 Qd8 Kf2 Kd7 a4 e5 d4 f5 d5 h5 a5 c6 a6 Kc7 a7 b3 a8Q e3+ Kf3 h4 Ra3 e4+ Kg2 e2 Ra6 e1B Bd3 b2 Rh3 f4 Ra1 f3+ Kh2 f2 Qa2 f1B Qh5 Nh6 g8R Nf5 g7 Ne3 Nf3 Qe7 Nd2 Bg4 Nc4 Na6 d6+ Kb8 d7 Ng2 Bd2 Nb4 Qg6 Bf2 Qb1 Bb6 Ra3 Bd8 Qd1 Na2 Rc3 Rh6 Rh8 Ne1 g8R Bg7 Qf7 Re6 Rh5 Bh6 Rf8 Re5 Qg6 Bg2 Re3 h3 Re2 Bf1 Kg3 h2 Ref2 h1Q Rfh2 Be6 Qg4 Bh3 Q4f5 Qf1 Qg4 Qff7 Q4f5 Qfe8 Qff7 Bc7 d8R+ Bc8 Rd6 Bcg4 Qfe6 Bd8 Qd7 Bg7 Rdf6 Bh6 Rf1 Ng2 Rd1 Ne1 Qde6 Q8d7 Qd5 Qc7 Qd7 Qc8
3Nr2r/nn3R2/1N5b/Pk1Np1pp/N3Q1bp/2PKq1PQ/p2B1N2/5B1q w - - 0 1 illegal: No proof kernel
Rb6/1p1prr2/4R2Q/p1qpKb1R/np4P1/3N1q1B/P2P3k/3RnQRN w - - 0 2 illegal: No proof kernel forced: wxLB
2q1Q2Q/2NP1p2/2Qnp1p1/3rpP2/6P1/QbbK1pq1/n2QB3/1k1Nb1RR w - - 0 1 illegal: Other
1Q5n/3p1r1b/p1P2NRn/p4r1P/1Q1Bp2p/Pp3N2/4Bb1B/Bk2qK1B w - - 0 1 illegal: No proof kernel
4B2R/3B2K1/2ppnpn1/qr2p1PN/pn1P2r1/3kP3/QBp2B1Q/N1Bb4 w - - 0 1 legal: proof: f4 g5 fxg5 b5 c4 bxc4 b4 Na6 b5 Nb8 a3 Bg7 g4 h5 g6 Bc3 g5 Bb4 axb4 Nf6 Ra3 Ng8 Rg3 Bb7 Rg2 Bc8 Rg4 hxg4 Kf2 a5 Ke3 c6 Ke4 a4 Ke5 c3 h4 c2 h5 g3 h6 g2 g7 e6 e3 Ke7 h7 Ra6 b6 Ra8 b5 Na6 b7 Nh6 b8Q Rg8 h8B Nb4 b6 Rf8 g8B Ra6 b7 Rb6 Ne2 g1N Bh3 Re8 Ng3 Ne2 Nh5 Nd4 d3 Rf8 Nd2 Nhf5 Nb3 Nh4 Na1 Re8 Qf3 Rb5+ Qd5 Qa5 Qc7 Rf8 b8B Re8 Bh7 Rd8 Bg6 Rf8 Ke4 Re8 Be5 f6 Qa2 Rd8 Be8 Ng6 Bg3 Ba6 Qf4 e5 Bf2 d6 Qh2 Ne6 Ba7 Rdb8 Kf5 Bc8 Bd4 R8b7 Bf7 Kd7 Bg4 Kc7 Bc3 Kb6 B3b2 Kc5 Be8 Rh7 Ng3 Rh4 Nh5 Rb7 d4+ Kb5 Nb3 Kc4 Na1+ Kd3 Bh3 Rb5 Bg4 Ngf8 Bh3 Nd7 Kg6 Rg4 Kh7 Ndf8+ Kh8 Nf4 Kg7 N8g6 Bg2 Bf5 Bd5 Be4 Be6 Bf3 B6d7 Ne6+ Kh6 Ke2 Qg1 Na6 Ng7 Rb8 Rh3 Rb3 Qh2 Kd3 Kh7 Rb5 Rh6 Be4 Nh5 Bf3 Kg8 Bd1 Rh8 Nb4 Kh7 Nc7 Kg7 Ne6+
4K1n1/Nnb1Q2Q/p1B2q2/q3BN1p/P6N/br2R1pb/1q2rrPP/3Nk2N w - - 0 1 legal: proof: b4 d5 e4 dxe4 a4 f5 Ra3 c5 bxc5 f4 Re3 fxe3 Ke2 Kf7 f4 Kg6 c4 Kh5 d4 Kg4 f5 e5 f6 h5 c6 b5 f7 g5 c7 b4 c5 b3 c6 a6 d5 b2 d6 Qe7 d7 Kf4 d8Q g4 Qc2 g3 Nc3 b1Q Nd1 Nd7 Bb2 Qf6 Qe7 Nc5 Qd3 Be6 c8N Nb7 c7 Rb8 Na7 Bh3 c8N Rh7 Bc3 Qb2+ Qc2 Rh8 Nd6 Rh6 Nf5 Rh8 Qd7 Ba3 f8N Rh7 Qe7 Rf7 Nh7 Rff8 Nf3 Rf7 N3h4 Rff8 Ke1 e2 Kd2 e1R Bb5 e3+ Kd3 e2 Kc4 e4 Kd5 e3 Bc6 Rbd8+ Nd6 Rfe8 Qd7 Rf1 Ng5 e1B Nge4 e2 Nef2 Re7 Bd4 Ba5 Qh7 e1Q Ndf5 Bc7 Rg1 Qed2 Nh1 Rf2 Re1 Re3 Re2 Rde8 Qd8 R8e4 Qde7 Rb3 Re1 Qb4 Bc3 Rc4 Re5 Re4 Re6 Ree2 Re5 Qh8 Ke6 Qf6+ Kd7 Qa5 Ke8 Qg5 Rd5 Qf6 Be5+ Ke4 Rc5+ Kd3 Rc3+ Kd2 Re3 Ke1
1bb1K2q/2Q1Q1P1/1R1r1Q2/n1n1p1B1/3b1Q1P/4Pn2/2kN2RB/3bB3 w - - 0 1 legal: proof: b4 a5 g4 g5 c4 d5 cxd5 h5 gxh5 b5 a4 g4 axb5 a4 f4 g3 b6 g2 b7 gxf1N b5 Ra6 bxa6 Ng3 a7 Ne4 Na3 Ng5 fxg5 Bd7 Nc4 Bf5 Nb6 Bd7 Nc8 Bxc8 Kf2 Kd7 Ke3 Kd6 Kd4 f5 a8Q e6 h4 c6 h6 f4 e3 a3 h7 f3 g6 f2 Qf3 f1B Rh2 a2 Qf4+ Ke7 Kc5 Nh6 d4 Be2 Rg2 Nf7 Bd2 Ne5 Be1 Nf3 Qa7 Bd1 Rb1 a1B d6+ Kd7 d5 Bd4+ Kb4 c5+ Kb5 Rg8 h8Q c4 Qhf6 c3 g7 c2 Qb6 Na6 b8B c1N Qc7+ Ke8 Kc6 Nc5 Rb6 N1b3 Q6e5 Rh8 d7+ Ke7 Qee4 Rh6 Qef5 Rf6 d6+ Kf7 Q5g5 Be7 Qge5 Qg8 d8B Qh8 d7 Bf8 Qeg5 Bd6 Be7 B6e5 d8Q Bd6 Qe4 Bh2 Qgf4 Na5+ Kd6 Bg3 Qec6 Kg6 Q6d7 Rf8 Bg5 Rf6 Ke7 Bh2 Qf8 Bg3 Ke8 Bh2 Qfd6 Kf5 Q7e7 Ke4 Qe5+ Kd3 Qf4 Rf7 Qef6 Rd7 Qe7 Rd6 Qff6 Ne5 Nf3 Bg3 Nd2 Nf3 Qc6 Kc2 Qcd7 Rc6 Bbf4 Rd6 Qc7 Bf2 Bh2 Bg3 Qb7 Rd5 Qc6 Bb8 Qcc7 e5 Qf4 Rd6 Qef6 Qh7 Q8e7 Qh8+
8/5nP1/1n1q3k/N2RPr2/rQB4N/1P1RqN2/1R1qr1rK/N1bQb3 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 g4 Qf6 b3 Kd7 Bb2 Qd6 Bd4 Qb4 Be3 Ke8 Bf4 gxf4 h3 Qe7 g5 Bg4 hxg4 Qd8 Kf2 c5 Kg2 a5 e4 h5 d4 f5 d6 Kf7 e6+ Kg6 d5 h4 b6 a4 e7 c4 e8N f3+ Kh2 f4 b7 h3 d7 c3 e5 c2 d6 c1B Bc4 f2 Ra2 f1R Na3 f3 Rb2 f2 Nc2 a3 Na1 a2 Ng7 Ra4 Nf3 Nh6 Nf5 Rg1 N5h4+ Kg7 g6 f1R g5 Nf7 Nd2 Rf5 Ndf3 Qe7 d8N Nd7 b8Q Nb6 d7 Qd6 Nb7 Qd2+ Ng2 Bb4 d8R Rh4 Na5 Re4 Rd4 Re2 Rd5 Qe3 Qd6 Be1 Qb4 Qd2 Nc2 a1Q Rd3 Qa2 Na1 Qe3 Rd5 Kg8 g7 Kh7 g6+ Kh6 g8Q Qa3 g7 Qd2 Qa8 Qe3 Qbd2 Qd6 Qb4 Bc3 Kg3 h2 Kh3 Be1 Nh4 Rg6 Rf1 Rg1 Rf2 h1Q+ Rh2 Qf6 Rbd2 Qd6 R2d3 Rg6 Qb7 Qhg1 Rf2 Qgg5 Kh2 Qgd8 Qe7 Rg1 Qg5+ Kh7 Qg3 Kh6 Qg2 Qdg5 Qg3 Qd2 Qg2 Qge3 Qf1 Qc2 Rc3 Rd2 Qg2 Qa2 Re2 Rc2 Red2 Rb2 R2d3 Re2 Rc2 Qb2 Rcd2 Qc3 Rc2 Qcd2 Rb2 Rgxg2+
k4rR1/3PR1P1/2nb3Q/2Nr4/4Q2N/Nn1b1K1B/P4RpN/nqn1q3 w - - 0 1 legal: proof: d4 a5 c4 c5 e4 f5 exf5 d5 b4 axb4 cxd5 Qc7 Nf3 Qb6 Ng1 Qd8 dxc5 g5 fxg6 h6 f4 Bg7 f5 Bf8 g4 Ra7 g7 Ra6 g5 Ra4 g6 Ra8 Bg5 hxg5 Ke2 Kd7 h4 Kc7 h5 e5 c6 b5 h6 g4 f6 b3 h7 g3 f7 g2 Ke3 e4 Qd3 b4 Kf2 b2 Be2 b3 Qd2 e3+ Kf3 Nf6 g8R Nh5 g7 Ba6 Na3 Nf4 Re1 Bd6 f8N b1Q Nd7 b2 Nc5 Qe7 Bb5 Kb6 c7 Ka7 c8Q e2 Bd7 Bd3 Bh3 Nc6 Qf5 Rd8 Qe4 Ka8 Rf1 Qe5 Rf2 Qc3 Qc1 Qe1 Qce3 Ne6 Qh6 Ned4+ Kg4 Rf8 Nf3 Nb3 Nh2 Rd8 Kf3 Nc1 Re8 Rg8 Re7 Rd7 h8N Rf8+ Qef4 Qc3 Ng6 e1N+ Ke3 Qb4 Nh4 Nc2+ Kf3 Na1 Rhe1 Qa5 R1e5 Qe1 Rf5 Qc2 Qe4 b1N Rf6 Rc8 Rf8 Nd2+ Kg4 Rb8 Rg8 Ndb3 Kf3 Qb1 Bf5 Be5 d6 Rdd8 Bg4 Rf8+ Bf5 Rb5 d7 Bf4 Bh3 Ra5 Na6 Rd5 Nc5 Bd6+
1K1r1b1B/3k1PR1/Q4q2/NPRb2R1/4R3/2qB1pQ1/1r1nqP1b/2b2Q2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 d5 a4 b5 c4 f4 cxd5 Nc6 Na3 Nd4 Nc4 Nf5 exf5 Ra7 Na3 Ra6 Nc2 Rh7 axb5 Rhh6 b6 Ra8 b5 Rh8 Nb4 axb4 Ke2 g5 Kf3 c5 Ke4 e5 d4 c4 h4 b3 h6 f3 h5 g4 f6 b2 f7+ Kd7 h7 b1Q+ Bd3 g3 h6 g2 d6 c3 Kd5 c2 b7 e4 b8Q e3 Rh5 e2 Rg5 e1Q Ne2 g1B Ra4 Ra5 Bb2 Qe7 Nc1 Ra6 Nb3 c1B Na5 Qc3 Qf1 Kd8 d7 Rc6 Qg3 Qea3 Rc4 Rg6 Rc5 Nf6+ Kc6 Qaa2 d5 Ke7 Kc7 Rgg8 d8R Ng4 d6+ Ke6 d7 Nf6 Kb8 Ne4 Ba1 Bb7 Re8+ Be7 d8Q Qe2 Bb2 Qa1 Qb6+ Kd7 Rg7 Bf8 Rgg5 Nd2 Re4 Rg6 Qa6 Rhg8 h8R R6g7 Rh7 Bd5 Qb6 Rg6 Rg7 Re6 h7 Bh2 h8Q Qf6 Be5 Qc3 Qh6 Rh8 Qg6 Rh4 Re3 Rb4 Re4 Re7 Qa6 Rb2 Qh6 Qf5 Qhb6 Qe6 R7g6 Qc6 Bh8 Q6f6 Rg7 Re8+ Qd8+ Rxd8+
2Q1B2q/6r1/RPQ2rq1/1Rqn1NQq/6R1/1BnP1PK1/2Rp1q2/3rk3 w - - 0 1 legal: proof: e4 f5 exf5 c5 a4 b5 axb5 Qb6 Qf3 Qa5 Qd1 Qd8 d3 d5 Ke2 c4 Bh6 c3 Bd2 cxd2 c4 Nd7 c5 Nb8 g3 g5 Na3 g4 Nc4 dxc4 Qe1 Bh6 Qd1 Bf4 gxf4 g3 h3 Bb7 Qb1 Be4 Qd1 Bf3+ Ke3 Bg4 hxg4 Qc7 Ke2 Qd8 Kf3 Kf7 b4 Kf6 c6 e5 c7 a5 c8B h5 b6 g2 b5 h4 b7 c3 b6 c2 Rc1 a4 Be6 a3 Be2 h3 Bb3 e4+ Kg3 h2 Nf3 a2 Rg1 a1R Nh4 Na6 b8Q h1Q Qc8 e3 f3 Ra7 g5+ Kg7 g6 Kh6 f6 Kh5 f5 Rg7 f7 Nc7 f8Q Nf6 Qe8 Nfd5 f6 Nc3 f7 Rh6 f8R N7d5 Qec6 Qf6 Rb1 c1Q Nf5 Kg5 Rb2 Qh5 Rc2 Qd4 Bf1 e2 Rf7 Qc5 Ra7 Qb2 Ra6 Rc1 Qe1 Rd1 Qf2 e1Q Be2 Rb7 g7 Rf6 g8R+ Rg7 Bf1 Qe4 Qe1 Qee8 Qe7 Qeg6 Rh1 g1Q+ Bg2 Qgd4 Bh3 Qe3 Re1 Qed4 Re4 Qe3 Rb4 Qe2 Rb5 Qee3 Nh4 Qed4 Bd7 Qf2+ Kh3 Kf4 Be8 Qa1 Qed8 Ke3 Qe7+ Qe5 Nf5+ Ke2 Qed8 Ke1 Qe7 Qee2 Qe3 Qa5 Qg5 Qh2+ Kg4 Qh8 Kg3 Qef2+ Kg4 Qa4+ Nd4 Qgh7 Rf8 Rh6 Rf4 Rf6 Nf5 Qg6 Rd4 Qfh2 Rf4 Q2h5+ Kg3 Qad4 Rg4 Qf2#
1R6/qN2p1Pb/1Q6/1PQN1n1b/1r1Qp3/1P1r1Bb1/1nQ3b1/1NB1k1K1 w - - 0 1 legal: proof: e4 g5 h4 c5 hxg5 b5 c4 d5 cxd5 a5 d4 f5 dxc5 fxe4 a3 a4 Ra2 b4 axb4 a3 b5 Qd6 b3 Qd8 Rb2 axb2 f4 Kd7 Kf2 h5 g4 h4 f5 h3 g6 h2 g7 Na6 g5 Rh3 d6 Nb4 g6 Nh6 g8Q Qb6 f6 Ra4 f7 Ke6 d7 Kf5 d8N Qa7 Qc2 Kg4 Nb7 Nf5 Qh8 Bg7 f8Q Be5 Qd8 Rd3 Nh3 Bg3+ Kg2 Be6 c6 Bg8 c7 Bh7 Be2+ Kh4 Rg1 h1B+ Kf1 Bf3 Nf4 Bh5 Nd5 Kh3 c8Q Kh2 Nd2 b1B Qd4 Kh3 Q2c5 Bc2 g7 Bd1 Nb1 Kh2 Bg4 Bf3 Qdb6 Bh1 Bf3 Bg2+ Ke2 Kh3 Rf1 Kh2 Rf2 Kg1 Q8c6 Na6 Qc2 Rb4 Q6c4 Nc5 Ke1 Na4 Qcc5 Nb2 Ke2 Bb8 Rf1+ Kh2 Kf2 Kh3 Kg1 Kg3 Bd1 Nh6 Rf8 Nf5 Be2 Bd6 Bf1 Kf3 Rb8 Bg3 Q2c3 Bh1 Bg2+ Ke2 Qc2+ Ke1 Bf3 Bg2
6N1/2P1Q1P1/q1p3rn/RN1n1k1B/2b1NqNR/2PQ3K/2p2pbn/2Q5 w - - 0 1 legal: proof: b4 b5 f4 a5 a4 e5 axb5 d6 fxe5 c6 b6 Ra7 Nh3 Nd7 Ng1 Rc7 b7 Nb8 g4 d5 g5 d4 g6 d3 b5 Ke7 b6 Ke8 Bb2 Bc5 Bd4 Ba3 bxc7 Bf8 h4 Be7 c3 Bg5 Qc2 dxc2 Bc5 Kd7 Be7 Ke8 Bf6 gxf6 hxg5 f5 Ra2 f4 Ra3 Qd6 Ra1 Qd8 Kf2 Ke7 Kg2 Ke6 d4 f5 e4 h5 d5+ Kd7 g7 h4 g6 a4 d6 Ke6 d7 f3+ Kh3 f2 Nf3 f4 Nfd2 f3 Be2 f1N Na3 f2 Nb5 a3 Bh5 Qf6 d8Q a2 Qd3 Nd7 b8Q Ne7 g8N Nh2 g7 Rh6 Qa8 Nd5 Qa3 Rg6 Qc1 Ng4 Rh2 Qf4 Rh1 N7f6 Rh2 Ba6 Rh1 Kd7 e6+ Kc8 e5 Nh6 e7 Kd7 e8N Ke6 Ne4 Nfg4 Ne8f6 Nh2 Ng4 Kf5 Rb1 a1Q e6 Qa3 e7 Qa4 e8Q Qa3 Na7 Bc4 Nb5 Qa6 Qe7 Qd2 Kg2 h3+ Kg3 Qg5 Ra1 Qf4+ Kh4 Nf1 Ra5 h2 Rg1 h1B Kh3 Bf3 Rh1 Bg2+ Kh4 Qd2 Rh3 Nh2 Kg3 Bf3 Rh4 Qf4+ Kh3 Bg2+
4R2R/p5BP/2P3K1/1B1rq2p/NRq1p1P1/Qn4b1/rB1Q1r1k/2R3q1 w - - 0 1 legal: proof: c4 f5 e4 c5 exf5 b5 a4 Qc7 g4 Qb6 g5 Qd8 d4 cxd4 Nc3 dxc3 axb5 Qb6 Qe2 Qc7 Qd1 Qd8 f6 d6 Ra3 h6 Ra5 Nd7 Ra1 Nb8 Ra4 Bf5 Ra1 Bh7 g6 Qc7 gxh7 Qd8 h3 g5 Qc2 g4 Qd2 g3 Qd1 Nd7 Bg5 Ne5 Bc1 Ng4 hxg4 Qc7 Ra6 Qc8 Ra1 Qd8 Ke2 Kf7 Kf3 Ke6 Ke4 h5 b4 c2 f4 g2 f7 Kf6 c5 e5 c6 Bh6 f8B Ne7 f5 Qb8 b6 Bf4 b5 Kg5 f6 Nf5 b7 Nd4 Bg7 Rf8 b6 Nb3 Ra4 Qc7 Be2 Rad8 b8R Rde8 Ba3 c1Q Bb5 Qc4+ Qd4 Bh2 b7 Kh4 Kf5 Kg3 Kg6 d5 Rb4 e4 Rc8 Rd8 b8R Qe7 Qb2 d4 Ne2+ Kh3 Ra8 d3 Nc3 d2 Na4 d1R Qd2 Ra1 Rc1 Rd5 Rab8 Rf7 Rh8 g1Q Rbe8 Rf8 Qh6 Bg3 Qd2 Ra2 f7 Qe5 Qe3 Kh2 Bb2 Rg8 f8Q Na1 Qff4 Rf8 Qa3 Nb3 Qd2+ Rf2
1N1b4/1Qp5/BPQ1qB1p/2R1K2p/2p5/1r1kP1R1/R2q1nPq/3QQ2r w - - 0 1 legal: proof: c4 a5 f4 d5 b3 e5 fxe5 dxc4 a4 b5 axb5 a4 b6 a3 Ra2 Bh3 Ra1 Bd7 h4 g6 h5 Bg4 h6 Nc6 Nc3 Bd7 Nd5 Nce7 Nf4 Ba4 bxa4 Nf5 Nh5 Ng7 hxg7 gxh5 Kf2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 a2 a5 Qd6 a6 Re8 a7 Qd8 a8Q+ Ke6 d5+ Kd7 d6 Ke6 d7 Qb8 d8Q Nf6 g8R Bb4 Bb2 Ne4 Qh4 Qd8 Rg3 Be7 Nf3 Nf2 Qb7 Qd2+ e3 Rd8 Rhh3 Rd3 Be2 Rb3 Rh1 Bd8 Nd4+ Kd7 e6+ Kd6 Nc6 Kd5 Rc1 a1Q e7 Qa8 e8Q Qc8 Bf6 Qd7 Bg4 Qe6 Kg5 Ke4 Rc2 Kd3 Kf4 h6 Ra2 Rg8 Nb8 Rf8 Bd4 f5 Bf6 Rf7 Qec6 Rd7 Re1 Rd5 Ra5 Rdb5 Rh1 Rb1 Re1 R5b3 Rc5 Rc1 Qdf3 Rcb1 Re2 Rh1 Bh3 Qd7 Ke5 f4 Be6 Qf7 Qfg4 f3 Bc8 Qg6 Qgh3 Qg4 Qh2 Qh3 Qg1 Qh2 Qg4 Nd1 Qf1 f2 Qe1 f1Q Qgf3 Nf2 Qg4 Qb4 Ra2 Qd2 Qgd1 Qe2 Qa8 Qg4 Ba6 Qgh3 Qab7 Qe6+
6n1/b2B1BP1/BqbQ2n1/k1nRbKPB/2r2R2/1q1Q1P2/2q1rr1Q/1N6 w - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 g5 hxg5 f5 d4 Nc6 Be3 Nb8 Nd2 Qa5 dxc5 Qc7 Bd4 exd4 e5 Qd8 Ne4 fxe4 Ke2 d5 g4 Kd7 b4 Kc7 c4 a5 g6 h5 g7 a4 e6 a3 g5 e3 Kd3 h4 c6 Kb6 e7 a2 e8B h3 f3 h2 c7 e2 Rb1 a1B Bf7 e1R Ne2 Nc6 Nc3 Bd7 c8B Nce7 Rb3 Ra5 Nb1 Bc6 Bg4 Ng6 Bh5 Bc5 Bh3 Ra4 Bd7 Qc7 Qc2 Re7 Rd1 h1N Qc3 Re2 Ra3 Ra7 Ra4 Ng3 Qd2 Ne4 Qe3 Kb7 b6 Ra8 b5 Rc8 Bhg4 Rh4 Bh5 Rhh2 Rb4 Rhf2 Rd2 Kb8 b7 Ka7 b6+ Ka6 b8Q Ka5 b7 Ba7 c5 Qb6 Qh2 Bb2 b8Q Ba1 Qbd6 Bc3 Kc2 d3+ Kb3 d4 Kc4 Ba1 Rd1 d2 Kd3 Bd5 c6 Nc5+ Kc2 Bb2 c7 Bc6 Qd3 Ne4 Kb3 Nc5+ Kc4 Ba1 Qc3 d3 Kd4 Rd8 c8B Bb2 Re1 d1Q Ba6 Qc2 Rd1 Rc8 Rd2 Ba4 Rd1 d2 Kd5 Bb5 Qd3 Be5 Rf4 Rc7 Rg1 d1Q Rg2 Nb3 Ke6 Rc4 Kf5 Nc5 Rgg4 Qb3 Rd4 Bc6 Rgf4 Qc1 Rd5 Qcc2
6Bb/BR1PP1N1/QnQQ3r/P2q2N1/K4q2/b2rn1bn/1r4B1/1kq3B1 w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 h5 a4 e5 fxe5 f5 c4 d5 cxd5 f4 Ra3 Ra6 Rg3 Bf5 gxf5 Ra8 Rg4 hxg4 h4 Kd7 e4 b5 d4 g5 Kd2 c5 Kc2 b3+ Kb2 f3 Ka3 b4+ Kb2 c4 h5 g3 f6 f2 d6 Ke6 f7 g2 d7 g4 h6 g3 a5 Ne7 h7 Nf5 Qe2 Bg7 f8Q Ne3 Nh3 g1B Qc5 g2 Nd2 Bh2 Nf3 g1N Bg2 f1Q Nh4 Bg3 Nf5 Qf4 Qd3 Qg8 d8Q Nc6 Qdf8 Rd8 d5+ Kd7 d6 Qd5 Ng5 Nh3 Qf1 Bf6 Ng7 c3+ Kb1 c2+ Kb2 Be1 Qa6 Bg3 N7e6 Bg7 Bd2 Bf6 Rb1 Bg7 Qcc4 Bf6 Ng7 c1B+ Ka1 b2+ Ka2 b3+ Ka3 Bh4 Ka4 Bg3 Ra1 b1R Qc2 Rg8 h8B Ba3 Bc1 Rb2 Rb1 Re8 Bd2 Re6 Qb8 Rd8 Qbb6 Nc4 Be3 Ne7 Bg1 Nf5 Qd2 Nfe3 Qdb4 Rd2 Qc3 b2 Qcb4 Rb8 Qc6+ Kd8 d7 Rd3 Qbb6+ Ke7 Qbc5+ Rd6 e6 Be5 Qb4 Kf6 e7 Bd4 e8B Ke5 Bh5 Rh6 Bf7 Bc3 Qe7+ Kd4 e5 Rb6 e6 Rb5 Rc1 b1Q Qed6 Rb2 e7 Qa1 Rf1 Qb1 Bg8 Qc1 Nf3+ Ke4 Re1 Be5 Ng5+ Kd4 Rd1 Kc3 Rf1 Kc2 Rd1 Ra2 Rd2+ Kb1 Rb2+ Ka1 Rb7 Rb2 Nh5 Bc3 Bd4 Kb1 Ba7 Bh8 Ng7 Nb6#
2R3R1/P3P2r/Bkb2q1q/1b1Bq2Q/3bK1nr/1B1n2RN/1P2n2B/1r2Q3 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 a4 b5 a5 Qf6 Nc3 Qd8 Na4 bxa4 Qb3 a6 Qb6 Bg7 Qxa6 Bh6 Qa7 Bf8 Kf2 Kd7 Kf3 f5 g4 h5 d4 a3 e4 a2 a6 h4 g6 h3 e5 h2 d6 Kc6 g7 Bb7 d7 Rh7 e6 Qe8 d8Q Nf6 g8B Nbd7 g5 Nc5 g6 Nd3 g7 Ng4 Ne2 Bc5 Qab8 Kb6+ d5 Bd4 Qe7 c5 a7 c4 Rg1 c3 Rg3 c2 Qe5 Bc6 Ng1 h1N Bd2 c1Q Nh3 Rh4 Rb1 a1R Qf7 Qb8 Qe1 Qe5 e7 Rf8 Qh5 Rf7 Bc3 Qd2 Rc1 Rb1 Bb4 Qh2 Bd6 Qd2 Rg2 Ng3 Rg1 Ne2 Rg3 Bb7 Rc8 Bc6 Bh7 Qc1 g8B Rg7 Bg6 Rh7 B6f7 Qc5 Bb8 Qcd6 Qg5 Qh6 Qh5 Be8 d6 Bb5 Bd5 Bc6 Kg2 f3+ Kh1 f4 d7 f2 Kg2 Qed6 Kf3 Qc7 Ke4 f3 d8R Qcd6 Bg2 f1Q Bf7 f2 Rg8 Qdf6 Bf4 Qg1 Bf1 Qh2 Bd6 Ng1 Be2 f1B Bb8 Nb4 Ba6 Bfb5 Be5 Ne2 Be6 Bd7 Bb3 Bdc6+ Bed5 Nd3 Rg1 Qhf2 Bh2 Qg3 Rg2 Qc7 Rg3 Qce5+
1bk1B1n1/1q4n1/b1Br4/1n6/1r1PK3/B1P1Pr1R/n2NqQQ1/NN1q1B2 w - - 0 1 legal: proof: b4 b5 h4 c5 f4 g5 hxg5 e5 a4 exf4 axb5 d5 Ra2 d4 bxc5 d3 c3 Kd7 Rb2 Ke8 Rc2 dxc2 Kf2 Kd7 Kf3 a5 d4 h5 g4 f5 e3 a4 b6 a3 g6 a2 g7 a1Q g5 h4 g6 h3 b7 h2 Nd2 Ra4 Bb5+ Nc6 b8Q Qe7 Bf1 Rb4 Nb1 Rh6 Qe1 Na7 Ne2 Nb5 Ba3 c1N Qa8 Na2 Nc1 Ba6 Nb3 Qf7 Qe4 Kc8 c6 Qb7 c7 Bd6 Qf2 Qb2 Na1 Qc2 Rg1 h1N Rg3 Qb2 Rh3 Ng3 Qd5 Nh5 Qc6 Ngf6 g8B Ng7 Bb3 Ng8 Bf7 Qd2 Be8 Qc1 Ke2 f3+ Kd3 f4 Ke4 Qd1 Qd5 Bc5 Bc6 Ba7 Qg5 Bb8 Qgg2 Ne8 g7 Rd6 Qh4 f2 Qhg3 Nh6 g8B f3 Bf7 Ng7 Be8 Ng8 Bd3 f1Q Q3f2 Qfe1 Be2 Qb6 Bf1 Qee2 Bcd7+ Kb7 c8N Kc7 Bc6 Qb7 Nb6 Kd8 Qe1 f2 Nc4 Kc8 Ncd2 Qc4 Be2 f1R Qh4 Rf7 Qhf2 Rf3 Bf1 Qce2
4r3/R7/nBbB3Q/Pr2n2B/RQRrPnb1/2K1N1bP/q1b5/Bqk5 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 c4 d5 cxd5 f6 b4 axb4 Nc3 Bd6 Ne4 Bf8 Nf2 f5 gxf5 Ra5 Ng4 hxg4 Ba3 Ra4 Bc1 Ra8 a4 Kd7 d4 b5 Kd2 c5 d6 Kc6 a5 Kd5 e6 Kc4 d7 g5 h3 b3 d5 g3 e7 g4 e8Q b2 d6 b1B f6 b4 f7 g2 Rh2 b3 Bb2 g3 Nf3 g1N e3+ Ne2 Bg2 Ne7 Nh4 Ng6 Rh1 Rh5 Bf6 b2 Re1 Be4 Bc3 b1B Nf3 Nef4 Qe7 Bc6 e4 Bc2 Ra4+ Kb3 Ba1 c4 Ne5 Na6 Bf3 g2 Qc1 g1Q Ng4 Rb5 Ne3 Ne5 Bh5 Qg8 Rf1 Qb6 d8B Bg4 d7 Qb8 Qc5 Bd6 f8B Qf7 Bb6 c3+ Ke1 Bc7 d8R Qb7 Rd1 Re8 Rd7 Bd6 Rc4 Ka2 Qd2 Kb1 Re7 Qb8 Ra7 Qg8 Ra4 Qa2 Qc4 Bc7 Bd6 Qb7 Qe6 Bb8 Qd4 Kc1 Qb4 Bb3 Rf3 c2 Qg6 Kb1 Kd2 c1R+ Nc2 Nfd3 Bf8 Nf7 Qc5 Qd7 Qb4 Bg3 Be7 Nf4+ Rd3 Rd1+ Kc3 Ne5 Rd4 Qe6 Bd6 Kc1 Qg7 Qb1 Ne3 Bc2 Qh6 Qea2 Rc4 Rd4
q1rb2q1/1Nn2P1k/1P2r1b1/4NNnb/1R3B1P/5R2/QK3QqQ/2qQ1n2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 Kf7 Kd2 Kg7 Kc3 c5 h4 e5 b4 a5 d6 a4 g6 f3 b6 a3 d5 g3 b7 e4 b5 c4 d7 f2 d6 f1B b6 e3 Bb2 e2 Qc2 e1N Qe4 g2 Qe2 a2 Qf2 Rh6 Nf3 g1Q Nbd2 Be7 Nd4 Nf6 Rh3 Na6 b8Q Nf3 Bc1 Ne4+ Kb2 Nfg5 Rf3 Ng3 Rb1 Qg8 d8Q Be2 d7 Nf1 Qbh2 Nc7 f6+ Kh8 f7 Qg2 g7+ Kh7 Nf5 a1Q+ Kc2 c3 Rb4 Qf8 Nc4 Re6 Bf4 Qg8 Ne5 Qa7 Kb1 c2+ Kb2 Qa5 Qe8 Bca6 d8N Bad3 Qa4 Rc8 Nb7 Bd8 Qa1 Qa8 Qd1 Qh8 Ng3 Bg6 g8Q+ Kh6 Qf8+ Kh7 Nf5 Qg7 Q8c5 Qg8 Qcd5 c1Q+ Kb3 Qc4+ Kb2 Qc5 Qa2 Qc4 Re3 Beh5 Rf3 Qc1+
8/bPB1rk2/Nn1q1b2/2rr1N1P/1P4QK/2qq2R1/2N2bR1/1nQ1RNb1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 Kf2 g5 h4 a5 e4 c5 d4 c4 b4 a4 e5 a3 d6 a2 d5 c3 e6 c2 b6 Nd7 b7 Ra5 e7 Nb6 h5 Bh6 f6 Rh7 d7+ Kf7 e8N Ne7 d6 Rc5 Rh2 Ned5 Nc7 Nc3 Nd2 Nb1 Nf1 Qb8 Bd2 c1Q d8R Qc3 d7 Bf8 Na6 Qd6 Ne2 g3+ Kg1 g4 Qc1 g2 Kf2 Rd5 Neg3 Bh6 Rg8 g1B+ Ke1 Bf8 Nf5 g3 d8Q g2 Qc8 f2+ Ke2 Bh6 Rg3 Bg5 Be3 Bh4 Kf3 Rc5 Kg4 f3 Bf4 Rd5 Nd2 f1R Kh3 Rd1 Nf1 f2 Qc4 Rd4 Qe2 Rc4 Qg4 Rcc5 Be5 Ke6 f7 Rg7 f8N+ Kf7 Ne6 Bf6 N1e3 f1Q Ned4 Bf2 Ndc2 g1B+ Rhg2 Qfd3 Bf4 Rg8 Be5 Re8 Nf1 Re7 Bf4 B6d4 Be5 Na3 Rb1 a1B Kh4 Bb2 Qcg5 Bde3 Re1 Nb1 Bf4 Qa3 Qh6 Bf6+ Qhg5 Qac3 Be5 Qe6 Bc7 Qd6 Qd1 Na4 Qd2 Rc6 Qc1 Ba7 N5e3 Rcc5 Nf5 B6d4 Qgf4 Nb6 Qg4 Bf6+
1k3B2/NP1QPBn1/RK3n2/2bQbP2/3q1b2/4n2Q/rqNNN3/n1r3q1 w - - 0 1 illegal: No possible last move, all moves rejected
Q3q2R/2n1NB1Q/1P3k2/2BKbPN1/r1B1nbB1/1r1n1Q2/n1P2n2/b1n5 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 b4 Qa5 g4 Kd8 f5 Nh6 Ra3 Ke8 Rf3 Bb7 Rf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ng8 Be3 Qc7 Bc1 Qd8 Ke2 Kf7 Kf3 d5 b6 e5 b5 a5 b7 h5 b6 h4 Be2 e4+ Kg2 d3 Ba3 f3+ Kf2 d4 Bf1 d2 Ba6 d3 Ke3 h3 Bb5 h2 Ne2 a4 Rg1 h1N Bb4 a3 Rf1 f2 Bd6 a2 Kd4 a1B+ Nbc3 e3 Kd5 Bg7 Ng3 e2 Nge4 e1B Qf3 Qe8 Bc5 Na6 b8Q d1N Qh2 d2 Qh7 Nb2 Be2 d1N Rg1 f1N Rg2 Nfg3 Rh2 Nhf2 Rh1 Qe7 g6+ Ke8 g5 Bd2 Rh6 Bf4 f7+ Kd8 f8Q+ Qe8 Rh3 Bge5 g7 Nbd3 g6 Kd7 Ng5 Nc7+ Kc4 Ra7 Nd5 Nc3 Ne7 Nf6 g8B N6e4 g7 Na2 Bf7 Ra5 Bd1 Ne2 g8B Nec1 Be2 Na6 Kd5 Ra4 Bh5 Kd8 Bgf7 Rg8 Bf1 Rg6 Bg4 Rc6 Bd4 Rc3 Bc5 Rb3 Qfg8 Nb2 Bc4 Nbd3 Qhg6 Kd7 Rh8 Kd8 Q8h7 Kd7 Qc6+ Kd8 Qa8+ Kd7 Nc8 Kd8 Nd6+ Ke7 Nc8+ Kf6 Ne7 Nc7+
1q1RN3/rqqN4/PQ2K2b/Pn5N/1rPqb1Q1/1q1NB2R/3Q1q1n/7k w - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 bxa5 g5 e4 h5 exf5 Rh7 Bh3 Ra7 fxg5 Rh6 g6 Rh8 g5 Ra8 Bg4 hxg4 Kd2 b5 Kd3 e5 Ke4 Ke7 Kd5 g3 c4 e4 h4 e3 a4 b4 h5 g2 h6 d3 h7 e2 g7 e1Q a6 d2 g6 Kf6 a5 Kg5 f6 Kf4 f7 Kg3 Rh6 b3 Nc3 b2 Na2 b1Q Qe2 d1Q+ Qd2 Nc6 Nh3 Kh2 Rh5 Qg3 Rg5 Nd4 Rh5 Qgc7 Qe1 g1Q Be3 Ra7 Nc1 Qdb3 Qd2+ Kh1 Nd3 Nh6 g8N Qf2 g7 Ng4 Nf6 Nb5 g8Q Bh6 f8N Nh2 Ne8 d6 Qg7 Bb7+ Ke6 d5 Qg4 d4 Nd7 Be4 Nhf4 Qdb8 Rh3 Rf8 h8Q Rf6+ Ke7 Rb6 Nh5 Qbb7 Qf6 Qbb8 Nc1 d3 Qc6 Rbb7 Qb6 Q1b2 Ke6 Qg7 Qb2 d2 Nd3+ d1Q Qd2 Qd4 Rb1 Qdg1 Rf1 Qg2 Rff3 Q1f2 Rf8 Nc3 Qd6 Rb4 Qb6 Qgf3 Nd6 Nb5 Rd8 Qbb7 Ne8 Qff4 Rh4 Qcb8 Rh3 Qfc7
1Q1Q1bBr/4R1BP/1P3qq1/Nr2b3/2Brr3/2PR1r1R/4nrBn/4k1K1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 f4 Ke1 Bb7 Nd2 Be4 Ndf3 Bf5 gxf5 h6 Ng5 hxg5 Bd2 g4 Be3 Qc8 Bc1 Qd8 Kf2 Ke7 h4 a5 b4 g5 e4 d5 b6 a4 h5 f3 f6+ Ke6 b5 a3 h6 g3+ Ke1 f2+ Ke2 a2 f7 g2 h7 d3+ Ke3 g4 b7 d2 b6 g3 Bb5 f1R Bd3 d4+ Ke2 Bh6 f8R Ra4 Bb5 Nc6 b8Q Nf6 Rh3 Ng4 Rb1 a1B Nf3 g1R Rf7 g2 Rb3 Bf8 Bb2 Nh2 Rd7 Ra5 Bc4+ Rd5 Rc7 d3+ Ke3 Re1+ Kf2 Nd4 Bc3 Qe7 Ra7 Re3 Rba3 Ne2 Nd4+ Kf7 e6+ Kg6 Rb7 Kg5 Nb3 Kg4 Na5 Rb5 Bd4 Rg3 Bg7 Bc3 e5 Kf4 Bb3 Qf6 e7 Re3 e6+ Be5 Qb1 d1Q Bc4 d2 e8B Rc3 Qa2 Qb1 e7 d1R Bef7 Rdd3 e8B Re3 Qc7 Rd1 Qb8 g1R Re7 Rgf1+ Kg2 Rdd5 Bc6 Rcb3 Qb2 Rbd3 Qc1 Rf2+ Kh1 Rd7 Bg2 Rd8 Qf1 Ref3 Rb3 Ke3 Bg8 Kd2 Qg1 R3d6 Re3 R6d7 c3 Qbg6 Qb1 Rd6 Qd3+ Ke1 Qd4 Rdd5 Rd3 R8d7 Qc5 R7d6 Qcc7 Rd7 Qcd8 Rb4 Bb3 Rdb5 Bbd5 Re4 Bc4 Nc1 Kg1 Rdd5 Nb7 Rdd4 Na5 Ne2+
r1r4B/1B5K/1Q2NNRP/1qQQ2qP/rr4qk/1b1Pn3/2Q4q/1n1b1N2 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 Ba3 g3 Bf8 h4 h6 b4 Na6 h5 Be7 Ra3 Bh4 gxh4 Nb8 Rg3 Bb7 Rg4 Bc8 Rg5 hxg5 Kf2 Ke7 Kf3 Kf6 Ke4 a5 h6 c5 d6 a4 d7 f3 h5 a3 e3 c4 b6 f2 b5 g4 b7 Kg5 b6 f5+ Ke5 g3 e4 c3 Qe1 c2 Qd1 g2 Ba6 f1B Bb5 f4 Bd3 a2 Rh4 a1R Ke6 f3 Kf7 f2 e5 Nc6 b8N R1a4 e6 Nd4 e7 Nb3 e8Q Ne7 b7 Nf5 Qf8 Ne3 Bb2 c1R Be4 Rcc4 Ne2 g1Q Nd4 Qg4 Qc2 Rcb4 d3 Be2 Bd5 Nd2 Qfc5 Bd1 Bc3 g6 Kg7 f1Q Ba1 Rg8+ Kh7 Qff5 Bb2 Qdf6 d8Q Be6 Nd7 Rc8 Bf3 Bb3 b8Q Qe5 Qda5 Qc6 Bc3 Qb5 Nf6 Rge8 Bd5 Qh2 Qbb6 Ra8 Rh3 Rec8 Rg3 Kh4 Bb7 g5 Rg1 Rg8 Ne6 Rgc8 Na3 Nb1 Nc4 Qge2 Qd5 g4 Nd2 g3 Nf1 g2 Qbc5 Qg4 Qab6 Re4 Ng8 Rf4 Bh8 Rfb4 Nf6 Qhh3 Rh1 g1Q Rh2 Qg5 Rg2 Qhh2 Rg3 Qf5+ Rg6 Qfg5 Ne4 Q1g3 Nf6 Q3g4
1bbb1r1b/2n1P3/q1B1kB2/3NNr2/R3Q2P/5rr1/1B3N1P/2q1KNQn w - - 0 1 legal: proof: b4 a5 c4 h5 a4 d5 cxd5 e5 f4 exf4 g3 h4 gxh4 b6 b5 Bf5 Ra2 Bc8 Rb2 Ba6 Rb4 axb4 a5 Bb7 axb6 Bc8 e4 Ke7 d4 g5 b7 c5 e5 f5 e6 g4 b6 f3 Bf4 f2+ Kd2 c4 Qe2 c3+ Kd1 g3 Qe5 b3 Be2 g2 Nd2 b2 Nh3 g1B Qe4 Nh6 Bf3 Bg7 Nf1 b1Q+ Bc1 Na6 b8N f4 b7 Qa5 Nd7 Ng4 b8Q Rf8 Ne5 Nc7 Qb6 Bh8 d6+ Kf6 d7 c2+ Ke2 Qa6+ Kd2 Qba1 Bb2 c1B+ Kd1 Qb1 d8N Ke7 Bg2 f3 d5 Rb8 Qbe3 Rb3 d6+ Kf6 Qc5 Bf4+ Qc1 Rc3 d7 Re3 Ndc6 Bg3 e7 Ke6 d8B Rc3 Nb4 Bf4 Ne3 f1R+ Kd2 f2 Nd5 Rd3+ Ke2 Rf5 Qc5 Qc1 Qcd4 Nb5 Ba5 Nc7 Bac3 Rf8 N3c4 Rg3 Qc5 Rd1 Bd4 f1R Nf2 Rdd3 Nce3 Rfd1 Nf1 Rdf3+ Qb5 Rdd3 Qb3 Rf5 Qd1 Rb3+ Ke1 Rb8 Bdc3 Ra8 Nfd3 Bb6 Nf2 Bb7 Rg1 Raf8 Bh1 Bc8 Bd4 Nf6 Bg2 Nh5 Bh1 Rg6 Rg4 Ng3 Qd3 Nb5 Nf7 Bf6 Nc7+ Kd7 Ne3 Ne2 Kf1 Bh8 Bf6+ Bd6 Rf4 Rh3 Ra4 Rg7 Ba8 Rhf3 Ncd5 Bb8 Ne5+ Ke6 Bc6 Bd8 Qe4 Ng3+ Ke1 Qc5 Kd2 Nh1 Qg1 Rgg3 Ke1 Nc7 Nf1 Qc1+
2rb3k/4Qr2/2PN1q2/r4P1N/1brn2B1/Nr3Q2/K3R1PR/1Q1Qb1bb w - - 0 1 illegal: No proof kernel
bnN2B2/1Q5K/7b/qPbq3R/qn2q1P1/1bN1bQ2/2RQN2P/k1r3N1 w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 Kd7 a4 b5 axb5 Nh6 e4 Nc6 f4 gxf4 d6 Ke6 d7 Ng8 d5+ Kd6 Qf3 Nb8 Qh5 Ba6 Qd1 Bc8 g3 Ke5 Ra2 h5 Bh3 h4 Ra1 Kf6 Bg2 a5 Be3 h3 d6 hxg2 Bc1 Ra6 Ra3 Rc6 Ra4 Rc5 Ra1 Rd5 exd5 Rh3 Be3 Rh6 Bc1 Rh8 Kd2 Ke5 Kd3 c5 b4 f5 b6 f3 b7 f2 g4 f1B+ Ke3 f4+ Kf3 c4 b5 c3 Ne2 g1B Qc2 a4 Qd2 a3 Qd1 c2 Bd2 c1B Ra2 Nf6 Nd4 Qa5 d8Q Bh6 d7 Bc4 d6 Bb3 Rc2 a2 Nc3 a1Q Nde2 Bc5 Rf1 Nd5 Ng1 Kd4 Be3+ Kc4 Ke4 e5 Kf5 f3 Kg6 f2 Qf3 e4 Rd1 Nb4 Rd5 f1Q Rh5 Rf8 Kh7 Qd1 Qc7 Qd3 d8Q Qd5 d7 Q1a4 Bf4 e3 Bd6 Rf4 Bf8 e2 Qg5 e1Q d8N Be3 Nc6 Rf6 Nd4 Rc6 Qcf7 Bd7 Nde2 Rc8 Qd8 Bc6 Qdd7 Ba2 Q7f4+ Kb3 Qd4 Ka3 Qd2 Bb3 Qc7 Nd7 b8N Ba8 Nc6 Nb8 Qb7 Rc7+ Ne7 Rc6 Qd4 Rc8 Rc1 Kb2 Rc2+ Ka1 Qd2 Rc6 Nc8 Qb1 Nh3 Qh1 Nhg1 Rc7+ Qf7 Qhe4+ Kg8 Rd7 Qd3 Qdc4 Kh8 Rd4 Qf3 Qed5 Kh7 Rf4 Qfe4 Rf1 Qd2 Rc1 Qf3 Qce4+
r1B1b3/1R1qPR2/R3bq2/3PNn2/1Qr1krR1/8/2NKbPb1/rQ2b2N w - - 0 1 illegal: No possible last move
nR2Nn2/P2Pq1r1/2B5/n2NPq1k/4rQ1b/2NNB1K1/2q3Qr/Qq5r w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 h5 a4 e5 fxe5 f5 c4 d5 cxd5 f4 Ra3 Ra6 Rg3 Bf5 gxf5 Ra8 Rg4 hxg4 Kf2 Kf7 h4 c5 d4 g5 e4 b5 a5 c4 a6 f3 d6 g3+ Ke3 c3 d5 g4 Kf4 b3 f6 Kg6 f7 g2 a7 c2 e6 g3 e7 b4 e8N f2 d7 b2 d6 b3 Be3 c1N Bd2 Be7 f8Q Na6 Bb5 f1Q+ Qf3 Nf6 Bc6 Nc7 Rh3 Nh7 Ne2 g1R Nbc3 b1Q Nd5 b2 Nec3 g2 Kg3 Qc2 Q8f4 b1Q Be3 Bg5 h5+ Kh6 Qf2 Qe7 d8N Nf8 d7 Rh1 Ne6 g1R+ Qg2 Nb3 Nc5 Na5 Nd3 Rb8 e5 Rb4 Rh2 Re4 Rh4 Kh7 h6 Kg6 h7 Na8 Rh5 Rh2 Rh4 Rg8 h8Q Rg7 Qg8 Rgh1 Rh8 Nh7 Qe6+ Kh5 Rg8 Nf8 Qd6 Qb5 Qa3 Qbb3 Qa1 Qfb1 N5b4 Qbe6 Nbd5 Qf5 Nec7 Nh7 Rb8 Nf8 Ne8 Bh4+
k2bBR2/5r2/1KRQq1Rn/r4pRn/1P1Brb2/N7/Pn4P1/Bq1Q1q2 w - - 0 1 legal: proof: h4 a5 f4 d5 b3 b5 f5 g5 hxg5 b4 Na3 e6 Nc4 exf5 Rh4 f4 Rh6 a4 Rh1 Be6 bxa4 b3 a5 b2 Rh3 dxc4 Rh5 Bd7 Rh3 Ba4 Rh1 Bb3 cxb3 Kd7 Rb1 Ke7 Ra1 Ke8 Kf2 Kd7 d4 Kc8 e4 Kb7 a6+ Ka7 e5 b1R d5 f5 d6 h5 g6 c5 d7 f3 Ke3 f2 b4 h4 e6 c3 g7 c4 Kd4 h3 e7 h2 Kc5 c2 Be3 c1N Ne2 c3 Nd4 c2 Bb5 Nh6 g8R f1Q Rg6 Qe8 d8B Rh7 Bg1 Qf7 Be8 Qe6 Bc7 Rb3 Be5 Nd3+ Kb5 c1B Nc2+ Be3 Na3 Rf7 Rc1 Nd7 Ba1 Nf6 Rc6 Nh5 Bf2 Kb8 a7+ Kb7 Rg5 Bf4 Bfd4 Nb2+ Ka5 Re3 Rg6 Rc8 a8R Re4 Rg5 Rc7 Rd8 Bg7 Rdd6 Ka8 Kb6 Ra7 Rd8+ Qc8 Rdd6 Ra5 Rdg6 Qd3 Re1 h1Q Re2 Bf8 Rec2 Qe1 Rcf6 Qe6+ Rc6 Rh7 Rf7 Qb1 Rff6 Bg7 Rf8 Bf6 Bd7+ Bb8 e8Q Qf1 Qd8 Rf7 Be8 Be7 Qd5 Bf4 Qd6 Bd8+
5Q1Q/KN2rN2/RN1bP1bp/3N3k/4nq2/1nP4r/1qQ1b1P1/1Rn3rB w - - 0 1 illegal: Other
1R3R2/r2q2BP/rr1k2BQ/N2bq3/2Q2b2/4pP1B/Rn1P1n2/1qRbK3 w - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 b5 axb5 g5 Ra6 f4 Ra1 f3 exf3 Bh3 Bc4 Be6 Bf1 Bc8 Nc3 h5 Ke2 g4 Nb1 g3 Kd3 gxf2 g4 Na6 Ke2 Nb8 g5 Qd7 Nc3 Qd6 Ne4 Qd8 Nf6+ Kf7 Ng4 hxg4 Qa4 Ke8 Qc2 Bg7 Qd1 Bf8 b4 Kd7 h4 c5 d6 a5 g6 e5 b6 a4 g7 c4 h5 g3 b5 e4 b7 a3 b6 g2 h6 c3 h7 c2 Qe1 e3 Rb1 a2 Ba3 a1Q Bb4 c1Q Bc3 Ra7 Rb2 Nf6 g8B Ng4 Bg7 Qcb1 Bf7 Na6 b8Q Nb4 b7 Nd3 Ra2 Qe5 Qc1 Nb2 Qc4 Be7 Bh5 Bg5 Bg6 Bf4 Qa8 Ra6 b8R Bb7 Qa7 Qde7 Qb6 Bd5 Qbc6+ Ke6 d7+ Q7d6 d8R Rb6 Qc8+ Qd7 Rf8 Kd6 Qd8 Ra6 Qh4 Ra7 Qh6 Rg8 Nh3 g1R Ng5 Rh8 Bg2 Rc1 Rd1 f1B+ Ke1 Be2 Bh3 Nf2 Ne6 Rc3 Rc1 Rb3 Nd4 Bd1 Nc6 Rb6 Na5 Rg8 Rf7 Rc8 Rf8 Rcc6 Qf1 Rba6 Qc4 Rcb6
Qn2Bk2/3Q3P/r1b2qrR/1RP5/1K3R2/N3qNpq/1Pn5/bn1RN1r1 w - - 0 1 legal: proof: g4 c5 f4 f5 gxf5 b5 d4 cxd4 a4 e6 f6 h6 axb5 Qb6 f5 Bd6 Bg5 hxg5 e3 Bf4 exf4 Qd8 Kd2 a5 c4 d5 h4 a4 f7+ Kf8 b6 d3 Kc3 a3 b7 d2 c5 a2 h5 d4+ Kc4 g4 h6 g5 h7 g3 Qg4 d1N Qe2 e5 Rh5 g4 Bg2 e4 Qd3 e3 Na3 e2 Rh6 e1Q Nf3 Qe3 Kb4 Ne7 Ne1 Bd7 Bc6 Nc3 Rd1 g2 Ba4 g1Q Qb5 Be8 Qd7 a1B Bc6 d3 Bb5 Kg7 f8N d2 Ng6 g3 Nh4 Ra6 f6+ Kf8 f7 Qh1 f5 Nb1 Nhf3 Rg8 Ba4 Rgg6 Bc6 Kg7 f8R Qh3 Bb5 Qb6 Rf6 Qd8 Rb6 Kf7 f6 Kf8 f7 Nf5 Ba4 Nd4 Rb5 Kg7 f8R+ Qde7 Qd6 Bc6 Rf4 Qf6 Qd7+ Kf8 Bb3 Qe4 Bf7 Qe3 Be8 Nc3 Rb1 d1R Rc1 Rd2 Rb1 Rg2 Rd1 Rg1 Qd5 Nd7 b8Q Nb1 Qa8 Nb8 Qd7 Nc2+
q1NR2Q1/2P1N2n/K1Q2b2/p5P1/8/qbn1Bq1B/b1n2BP1/QrQ1r2k w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 exf5 g5 c4 g4 b4 g3 Ra3 Bg7 Rc3 dxc3 hxg3 Bd4 g4 Bg7 g5 Bf8 Ke2 Kf7 Kd3 e5 f4 d5 b6 a5 f6 Kg6 f7 Kf5 c5 h5 b5 e4+ Kd4 e3 b7 e2 b6 Kg4 f5 Kg3 c6 e1N f6 h4 c7 c2 Ba6 h3 Nd2 h2 Nc4 Ne7 Kc5 d4 Kb5 d3 Nh3 d2 Nd6 Nd7 b8B Nd5 b7 Bg7 Ba7 Nf8 b8Q Be6 Qb7 Rb8 Nf4 Rh7 Ng6 Nc3+ Kb6 Ba2 Rg1 h1Q Be2 Kh2 Ka6 Ne4 Qc6 Rb1 Ne7 Qb8 Bd4 Rb5 Ndc8 Nc3 Qe4 Rh4 Qc6 Nh7 Bh5 Ne2 f8Q Re4 f7 Nc3 Ba7 Be5 Qd8 Bf6 f8Q Rb3 Qg8 Re3 Qg4 d1B Qd2 Rb7 Rf1 Re4 Rf3 Qf1+ Rd3 Kh1 Qf3 Qe2 Bf2 Re5 Qff4 Qf3 Rd8 Re2 Qdd6 Rb2 Bd2 c1Q Bg4 Bdb3 Bh3 Nc2 Qdd7 Re1 Qd3 Nd4 Qb1 Nc2 Qa1 Rb1 Qe3 Qa3 Bc1 Rg1 Qe1 Rf1 Bce3 Rg1 Qd1 Re1 Qc1 Qa8+
1r2q1Q1/QR1brr2/1BN3r1/1RK1B1R1/2r3P1/p1n1QP1k/b4b1P/1n1Q4 w - - 0 1 legal: proof: c4 d5 cxd5 h5 e4 b5 a4 f5 axb5 h4 Nc3 h3 Ke2 g5 f3 g4 Na4 g3 Nc5 Bh6 Nd3 Bg7 Nf2 Bf8 exf5 gxf2 g3 Ba6 Bg2 hxg2 Qb3 Bb7 Qd1 Bc8 Kd3 Kf7 Kc4 Kf6 b4 Kg5 f6 f1B+ Qe2 e5 d6 a5 d7 c5 b6 a4 f7 e4 d4+ e3 d5 a3 b7 Ra7 d6 Nf6 b5 Qe8 d8B Nd7 Ba5 Nd5 b8R N7f6 d7 Ne4 b6 Nec3 b7 Nb1 Bb6 Ndc3 d8Q+ Be7 f8Q Bd7 Ra2 Kh5 Qg8 Bh4 Qd3 e2 Bf4 e1R Ne2 g1R Nd4 Re7 Nc6 Bfh3 Be5 Bhe6+ Qd5 Bf7 Rb2 Rg2 Rb5 Rg1 Kb3 c4+ Kb4 Bg4 Bbc7 Na4 Ba5 c3 Qb6 c2 Qdd8 c1R Bf6+ Re5 Qe3 Qd7 Qgf8 Ba2 Bb6 Rcc5 Qd6 Nac3 Qd1 Rf5 Bd4 Rf7 Be5 Re8 Qc8 Ra8 Qd8 Ree7 Qg8 Rg2 Rg1 Qe8 Rc8 Bh3 b8Q Bd7 Qa7 Rb8 Rc7 Rc4+ Ka5 Rd2 Rb7 Rd6 Rg2 Rg4 Rg1 Rgg6 Kb4 Rd4+ Kc5 Rdg4 Rg2 Rgf4 Rd2 Ra4 Rd4 Rb4 Rf4 Kg5 g4 Bf2 Rf6+ Kh4 Rf5 Kh3 Rg5 Rc4#
5nrR/2r1np1n/4P3/nq3n2/Q1r1k2N/Bb2NbK1/N4P1P/1N2QQ1R w - - 0 1 legal: proof: d4 c5 a4 e5 b4 exd4 bxc5 h5 g3 b5 axb5 Be7 Bh3 Bg5 Bg4 Bh4 gxh4 hxg4 c4 Ke7 e4 Kf6 b6 Ke5 b7 d5 c6 a5 c7 g5 h5 a4 c5 d3 c6 d4 h6 d2+ Ke2 d3+ Ke3 a3 h7 a2 Qf1 d1B Qg2 d2 Nh3 g3 Rg1 g4 Ng5 Qd7 Na3 Bf3 Rh1 Ra4 Rb1 a1N Qf1 g2 Rb2 g1N Nb1 d1R Rb4 g3 Ba3 g2 Qe1 Na6 b8Q Nh3 Qb5+ Nc5 Qbf1 g1N Rb8 Ne6 Ra8 Bb7 c8N Rc1 c7 Qb5 Nb6 Nb3 c8Q Ng7 Qc2 Ne2 Nd5 Rc4 Rc8 Na5 Qa4 Ne7 Rb8 Re8 h8N Nd4 Rc8 Qb4 Rb8 Rg8 Ng6+ Kd6 Re8 Nde6 Nh4 Nf8 e5+ Kc5 e6 R1c2 Ndc3 Bbd5 Nh7 Ng5 Nf6 Ngh7 Na2 Kd6 Ra8 Ke5 Rb8 Rc7 Re8 Bb3 Ng4+ Kd5 Rb8 Qb6+ Kf4 Qb5 Kg3 R2c4 Ne3+ Ke4 Rd8 Nac6 Rd5 Na5 Rh5 Nf6 Rh8 N6h7 Bb4 Rd4 Bc5 Rc4 Ba3 Ngf5+
1KN1nr2/BNn1Pp1R/q4b2/1Q1rb3/2rRQ3/N2N3n/3PP2k/Qnn5 w - - 0 1 legal: proof: c4 e5 f4 b5 a4 d5 cxd5 g5 axb5 e4 h4 gxh4 f5 Ba3 g3 Bd6 Bg2 Be6 fxe6 Bf8 Bf3 exf3 Kf2 Ke7 Ke3 Kd6 Kd4 c5+ Ke4 h5 b4 a5 b6 a4 b7 c4 e7 a3 b5 a2 g4 c3 b6 f2 g5 f1N g6 c2 g7 h3 Kf5 h2 Ke4 h4 Kd4 h3 Na3 Ne3 Nf3 Nf6 g8Q Nc4 Qg6 Qc8 Ne5 Rh4+ Qe4 Bg7 Bb2 c1N Nd3 Na6 b8Q+ Nc7 b7 Rh5 Rb1 a1B Bc3 Re5 Rb4 Ne8 Qe1 Bf6 Qg1 Kd7 d6 Ke6 d7 Ra4 d8N+ Kd6 Qeg6 Rd5+ Ke4 Bb2 Bd4 Bc3 Ba7 Be5 Qd4 Qe6 Qa1 Qc8 Nc2 Na3 Rd4 Nb1 Na3 Rc4 Qf5 Qe6 Qa8 Qc8 b8N Qb7 Nd7 Qa6 Rd1 h1R Nb6 Rh2 Rh1 Rg2 Qh5 h2 Nb7+ Ke6 Nc8 Rg8 Rg1 h1N Rg7 Rf8 Rh7 Rb5 Qf3 Rd5 Qb8 Bg7 Qg4+ Kf6 Qe6+ Kg5 Qc6 Kg4 Qa8 Ra5 Qb5 Kg3 Kf5 Bgf6 Ke4 Ne6 Kd5 Nf2 Qb8 Bf4 Qe5 Nh3 Qe4 B4e5 Nb6 Nc5 Kc6 Ne6+ Kd7 N6c7 Kc8 Kh2 Kb8 Bg3 Nc8 Bge5 Qa4 Rac5 Qb5 Rd5
1RK1RQ2/krQ1BBNn/4bp1P/1BP3r1/3n1br1/1rb5/1B2n2P/1Q4q1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 f4 b5 d4 cxd4 a4 e5 fxe5 Be7 Nc3 Bc5 Na2 Ne7 axb5 Ng8 b6 Be7 b5 Bf8 Nb4 axb4 Kd2 g5 Kd3 d5 c4 Kd7 e4 b3 h6 g4 c5 b2 b7 Kc7 e6 b1R e5 g3 e7 g2 e8Q Nf6 e6 Bg7 e7 Rg8 Bg5 Nc6 b8B+ Kb7 b6 Ra4 Nh3 g1B Qf8 Be6 e8B Be3 Bbf4 Nh7 Be5 Bf4 Be7 Rab4 Ng5 R1b3+ Kc2 Qa8 Rb1 Qa1 Bb5 Ka8 b7+ Ka7 Re1 Ra4 Re3 d3+ Kd2 d4 Qc2 Bf6 Rb2 Qg1 Qb1 Bd5 Ne6 Rg5 Ng7 Be6 Bc7 Rc4 Ba5 B6e5 Bc3 f6 Bf7 Qg3 Kc1 d2+ Kc2 d1N Kd3 Qg1 Ke4 d3+ Bd4 d2 Re1 Bh3 Kd5 Ra4 Bc3 Bd4+ Re5 Be6+ Kd6 Rc4 Kc7 Ra4 Bb4 Bc3 Ba3 Nd4 Kd8 Bb4 Kc7 Nc3 Kd8 d1R Kc7 Bd5 Kc8 Nce2 Re4 Bc3 Re6 Rbb4 Rb3 Bc4 Bb2 Rd3 Ba6 Nb5 Qf1 Be3 Bd8 Rd4 Qb1 Ra3 Re8 Rdg4 Be7 Bed2 Qa2 Bd5 Qb1 Nbd4 Bc4 Rb6 Rb5 Bf4 b8Q+ Ka6 Qd6 Rb3 Qe5 Ka7 Bd3 Re6 Rb8 Reb6 Qc7+ Rb7 Bb5 Be6+
B1B3Rr/2nrr1p1/1Pn2Q2/Bn4b1/R1Bb1P1k/r4Pb1/q1KQ4/3R3N w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 h5 axb5 f5 g4 hxg4 f4 Bb7 Nc3 Bg2 Ne4 Bf3 exf3 fxe4 Kd2 Kf7 b4 Kg6 c4 Kh5 h4 e5 b6 d5 b5 a5 b7 a4 b6 d4 c6 a3 c5 g3 c7 d3 c8B a2 c6 e3+ Kc3 d2 c7 e4 Bd7 g2 c8B e2 Qb3 d1N+ Kd2 e1R Qa4 e3+ Kc2 e2 Qb4 Ne7 Bc6 Ra3 Nh3 g1R Qd2 Na6 b8R Nc3 Ba8 Qd5 Nf2 Nc7 Bb2 N3b5 Bc3 Rd1 Ba5 e1B Bc4 Rg2 Rg1 Nc6 Nh1 Bg3 Re1 Be7 Re4 Rdg1 Rd1 a1B Rd4 Bg5 Re4 Kh6 h5 Re2 Rd4 Re7 Re4 Kh7 h6 Kg6 h7 Kh5 Rd4 Kh4 Re4 Rd8 Rd4 Rd6 h8Q+ Rh6 Qf8 Rh8 Re4 Bd4 Qf6 Qg8 Bd7 Qd5 Rg8 Re1 Bc8 Rd7 Re3 Re2 Rb3 Ree7 Rb4 Qf7 Ra4 Bb2 Bd3 Qa2 Bc4 Bd4+
B2b1bb1/3PNQ2/1N1n3r/B1r2q1N/2p1B3/2QPP1nk/3nR1rn/3BK3 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 h4 Bf8 b4 g5 hxg5 f3 d3 Qd7 e3 Nh6 Ra2 Qd8 Re2 fxe2 Kd2 Ng8 g4 Ke7 g6 Kf6 d6 Kg5 b6 e1B+ Ke2 h5 g7 f5 b5 a5 b7 c5 b6 h4 Qa4 h3 Qc2 Kh4 g5 h2 g6 a4 Qb2 a3 Bd2 a2 Nc3 a1R Bg2 f4 Na4 Rh6 Qc3 Rc1 Nh3 Qd7 Be4 Na6 b8N Nf6 g8B Ne8 b7 Qf5 g7 Be6 d7 Nd6 Nb6 f3+ Kf1 f2 Nc6 Rc8 b8Q Rc2 Ne7 c4 Nf4 Rb2 Nh5 Nc5 Bf7 Nb3 g8B Rc5 Qe8 Kh3 Rg1 h1N Rg2 Rc2 Bh7 Ra2 Ba8 Rb2 Bfg6 Bg8 Qf7 Ra2 Ke2 f1N Kd1 Bg3 Re2 Nh2 Be1 Be5 Bd2 Ng3 Ke1 Qf3 Bge4 Bf6 Bhf5+ Qg4 Bf3 Bh4 B5e4 Qf5 Qcf6 Bg5 Ba5 Nd2 Qc3 Bf6 Ned5 Bd8 Ne7 Nb3 Rg2 Rf2 Be2 Nd2 Bd1 Rf4 Re2 Rf2 Qg6 Rg2 Qe6 Rh7 Qf7 Rh6
q2BBR2/1P3P2/1NK5/r1rn2R1/2bP4/Q4p1n/B2rbR2/krR1nbQ1 w - - 0 1 illegal: No proof kernel
3BKnbB/r2N2n1/4QPp1/1nqr2k1/B5b1/1nN2q1R/P1BPN2n/6Q1 w - - 0 1 legal: proof: f4 e5 c4 a5 b4 axb4 g3 f5 Na3 d5 cxd5 h5 Rb1 Bc5 fxe5 f4 Rb3 Be3 Rc3 f3 Rc4 Bg5 Rg4 Bf4 gxf4 hxg4 Kf2 Kf7 Ke3 Kg6 Ke4 b5 h4 c5 e3 g3 d6 f2 Kd5 g2 e6 c4 e4 b3 e7 b2 e8N b1N e5 c3 e6 c2 d7 b4 Kd6 b3 e7 b2 Ne2 g1Q Nf6 Nc3 Rh3 b1B Bb2 c1N Nb5 Qf8 d8B Nb3 Nd7 Ra7 f5+ Kh5 Bg2 f1N Be4 Nh6 Bc2 Qc5+ Ke6 g6 e8B Nh2 Qf1 Kg4 h5 Bb7 Qg1+ Bg2 Nd6 Nb5 Ne4 Rh7 Bh8 Rf7 Nb6 Rfd7 N4c3 Rd5 f6 Kg5 Bc6 Nf5 h6 Nd7 h7 Qfd6+ Kf7 Qg3 Ke8 Nf8 Nd7 Qf3 Be4 Bc2 Bd3 Bd1 Bc2 Nb5d4 Ba4 Nb5 Bg7 Qh5 h8Q Qf3 Ng3 Bf1 Qg8 Bc4 Bh8 Bde2 Qe6 Ng7+ Kf7 Bd1 Nge2+ Qg3 Nc1 Bg4 N1e2 Qf3 Qe4 Rd6+ Ke7 Bg8 Qe6 Nf5+ Ke8 Rd4 Qc6 Rd5 Qe6 Ng7+
k4b1Q/1R5N/2pP2n1/3NP1r1/b1P2Qqb/QN1R1q1b/bKrB1n2/7N w - - 0 1 legal: proof: f4 d5 a4 e5 g4 b5 axb5 Be6 fxe5 Bc8 e4 dxe4 b4 h5 gxh5 a6 b6 Ra7 b5 Ke7 b7 Ra8 b6 Ke8 Bb5+ axb5 d4 Kd7 Kd2 Kc6 Kc3 f5 h4 g5 h6 e3 h7 g4 h5 g3 h6 g2 Nh3 g1Q Ra2 f4 Qf1 b4+ Kb3 e2 c4 e1B Nd2 f3 Nf2 Bd7 Rh3 Nf6 Kb2 b3 Nh1 f2 Rd3 Rg8 h8N Qg4 h7 Ne4 Ng6 Qf6 h8Q Qff3 Nf4 Rg5 Nd5 Ra3 Qfh3 f1B Ra1 Bg2 Rb1 Nf2 Qg3 Be8 Qf4 Nd7 b8Q Bh3 b7 Ra7 Qa8 Ra2+ Kc3 b2 Qa3 Bg7 b8N+ Kb7 Kc2 Nf8 Nd7 Ng6 N7f6 Bf8 Nh7 Ba4+ Nb3 c6 Bd2 Ka8 Ne3 Nd1 d5 Bh4 d6 Nf2 Kc3 Ne7 Nd5 Ng6 Rc1 b1B Rd1 Ra1 Kb2 Ba2 Rf1 Re1 Rg1 Re3 Rb1 Re2 Na5 Re1 Kc3 Qfg3 Rb7 Rc1+ Kb2 Q3f3 Nb3 Rc2+
NQq1b3/Qq6/K3k1bR/B3P1p1/RNNb3P/n1n1NbP1/2R2qr1/6r1 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 h5 d4 e5 fxe5 h4 dxc5 h3 g3 Bb7 Bg2 hxg2 Qd3 Ba6 Qd1 Bc8 Kd2 Ke7 Kc3 g5 Kc4 f5 e4 a5 b4 d6 e6 a4 e5 f4 b6 f3 Kb5 a3 c4 d5 b7 d4 c6 d3 c5 a2 c7 f2 c6 f1B Nh3 g1Q Nf2 Bh3 Ng4 d2 Ne3 Rh7 Na3 Qf2 Qg1 d1B Bd2 Nd7 b8N Bf5 Na6 Bf3 Nac4 Bg6 h3 Bb7 c8R Ngf6 c7 Nb6 Ka5 Bfh5 b5 Ne4 Bc3 Rb8 Nb4 Qd7 Bd2 Nc3 Rh2 Bbe4 Ka6 Bef3 h4 Rf7 Rd8 Qd5 c8Q Qe4 Rd6 Rf4 Qc6 Be8 Qa8 Bhg6 Rc6 Rd8 Be1 Rd2 Qb7+ Kd8 Rg2 Bc5 Rh2 Rf7 Rg2 Rc7 e7+ Kd7 Rf6 Bd4 Rh2 Bgh5 Rh6 Bhg6 Rg2 Ke6 Rh2 Nbd5 b6 Nb5 Rg2 Na3 Rh2 Bd7 e8N Nc3 Rg2 Qf1 Rh2 Rg2 Qf2 Rc5 Qg1 Qf2 Nc7+ Kf7 Na8 Ke6 Qh1 Rg1 Qa7 Be8 b7 Rc7 b8Q Rf7 Rc1 a1Q Rc2 Qc1 Ra2 Qf1 Rhc2 Qf2 Ra1 Rb7 Nc6 Rb1 Nb4 Rg2 Bd2 Qb2 Ra2 Rbg1 Ra1 Qc1 Raa2 Nab1 Ra4 Na3 Qh7 Ncb5 Nd3 Bg4 Ncb6 Qc6 Ra2 Rh2 Qha7 Q1c2 Bc3 Qc8+ Qhb7 Bf3 Ba5 Rhg2 Nb4 Nc3 Nbc4 Qe4 Rc2 Qexb7+
nr2q1BQ/1BBQ4/2NR3P/1b1p4/1Q4Nr/1r5q/PbbnPB2/b2k3K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg2 Ke6 c4 Kf5 h4 Ke4 c6 f5 c7 b5 h6 g5 c5 d5 e6 f4 h7 g4 e7 b3 e8B b2 h5 f3+ Kh2 b4 c6 f2 Nd2+ Ke3 Qa4 b1B Bd7 b3 Ngf3 b2 Nd4 Qe8 Qb4 Nf6 Be6 Bc2 Bh3 b1R Bg8 Ba6 c8Q f1Q c7 Nbd7 Nc6 Rb3 Rb1 Nb6 Qd7 Bb5 c8Q Ne4 Nf3+ Nd2 Nfe5 Qe1 h6 g3+ Kg2 Ra4 Bf5 Na8 Rh3 Bg7 Bd3 Qf2+ Kh1 Qf6 Bc4 Kf2 Ng4+ Ke1 Rb2 Qc3 Qb8 Nb1 Bf4 Kd1 Bc7 g2+ Kh2 g1B+ Kh1 Ba6 Qbd8 B1d4 Bd3 Bc8 Ba6 Nd2 Bb7 Bdf6 Be6 Rf8 h8B Bd4 Bg8 Bge5 Qh7 Bd7 Bg7 Bf6 Qh8 Bde5 Nb8 Bb5 Nc6 Bd4 Qd7 Bfe5 Qc5 Rc4 Bf6 Ra4 Bh4 Bf6 Bf2 Bde5 Nh2 Rh4 Ng4 Qc4 Na7 Qg6 Bd8 Rc3 Qhg7 Ba6 Rb5 Rb3 Qb4 Ba1 Ba5 Bfb2 Bc7 Qc3 Qh8 Rb8 Rb6 Bb5 Rd6 Qe8 Nc6 Qxh3+
2n5/q2k4/2bpR1Nq/1RPQ2NP/RNr1n1B1/P7/R1b1r2K/qQ2rq2 w - - 0 1 legal: proof: g4 c5 f4 f5 e4 a5 b4 axb4 g5 e6 exf5 h6 d4 Na6 dxc5 Be7 Bb2 Bf6 Bd4 Qe7 gxf6 Qd8 Bf2 Nb8 Bh4 Kf7 Bg5 hxg5 Qh5+ Kf8 Qd1 Ke8 Kf2 b5 Kg3 d6 h4 g4 c4 g5 h5 b3 a3 b2 c6 e5 c7 b4 f7+ Kd7 f8Q b3 f6 e4 f5 e3 f7 e2 f6 e1R Qc2 Bb7 c8N Nc6 Qh7 Nce7 Bh3 Ra4 Nc3 b1B Nd5 b2 Nb4 Bc2 Ra2 b1Q Nf3 Bc6 Kh2 Qa1 c5 Qb6 Qfh6 Qa7 f8R Qc1 f7 Nf6 Rg1 Ne4 Re8 Qa1 f8R Qc1 Na6 Rc4 Rf4 Rf8 Rg3 Rf5 Q6g6 Re5 Qf5+ Re6 Rg1 Qa1 Nb4 g3+ Kg2 g4 Qd5 Qf6 Ng5 Qh6 Kh1 g2+ Kh2 Nf2 Qhd3 R6e2 Qb3 Ne4 Qb1 Ng6 Re6 Ne7 Qd2 Nd5 Ne7 Nb6 Ng6 Nc8 Qd5 Nd2 Kg3 Ne4+ Kh4 g3 Bg4 Bd1 Kh3 Bc2 Rgf1 g1Q R1f3 g2 Rb3 Qf1 Kh2 Bb5 Nd3 Bc6 Rb5 Qf3 Nb4 Qc3 Nh3 Qa1 Ng5 g1Q+ Kh3 Nf6 Nd3 Rc3 Ra4 Rc4 Nb4 Qf1+ Kg3 Re5 Kh2 R5e3 Bd1 Ne4 Bg4 R3e2+
n2nBr1N/4Rq1Q/2pQQ1P1/2P1K3/n1Q3b1/1Pr4q/1b2n2k/r2BRB2 w - - 0 1 legal: proof: d4 a5 a4 e5 dxe5 b5 axb5 g5 f4 a4 fxg5 a3 g4 h6 b3 Ra4 g6 Ba6 Bb2 axb2 Nc3 Bc8 Ne4 Ra8 g5 h5 Nf2 Ra6 Ng4 hxg4 Qb1 Ra5 Qd1 Ra8 Kf2 Ke7 Kg3 Ke6 Kf4 b1N h4 f5 c4 d5 e4 d4 h5 d3 g7 d2 g6 g3 b6 g2 b7 c6 h6 Nd7 b8Q Nb6 h7 Qd3 c5 Nc3 Qc1 d1R Ra7 Nh6 g8Q+ Nf7 Nh3 Nca4 Qc4+ Qd5 Rb7 g1N Ra7 Bg7 Qc7 Bd7 Ng5+ Ke7 e6 Kf6 e7 Ra1 e8B Nd8 Qb8 Qf7 Qd6+ Be6 Re7 Ne2+ Ke3 Rc8 Bd7 f4+ Kd3 f3 e5+ Kf5 Qe8 Rg8 h8Q f2 Qh7 Rf8 Rg1 Rb8 Bc8 Bd7 e6 Na8 Rh1 Bd4 Ba6 Kg4 Ke4 Rb4 Bb5 Be3 Ke5+ Kg3 Ba6 Bc1 Bb5 Qf3 Nf7 Bc8 Nh8 Qf7 Rd7 Ba3 e7 Bc1 Rb7 Bg4 Qed7 Ba3 e8B Bc1 Q7e6 Bb2+ Qcd4 Rc4 Re7 Rc3 Qdc4 Nf4 Be2 f1Q Bd1 Qh3 Re1 Ne2 Qb4 Ng1 Bf1 Kh2 Qbc4 Ne2
1b2r3/1n4r1/NPRn1k2/2Np3P/R1q3Rq/3KQB2/r2PQ1q1/1R2r1Qb w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 a4 c5 bxc5 Bb7 axb5 Bc8 f4 h6 g4 Qc7 Bb2 Qb6 Bf6 gxf4 g5 Qc7 g6 Qd8 Bg5 hxg5 Ke2 e5 h4 Ke7 c4 a5 b6 g4 h5 e4 c6 g3 c7 a4 c5 e3 g7 a3 c6 a2 Na3 g2 Nf3 g1R Bg2 Kf6 Nd4 f3+ Kd3 f2 Nac2 f1Q+ Qe2 Nh6 g8R Na6 Rg4 Bb7 c8Q Bd6 c7 Nf7 Bf3 Qg2 Nb4 Re8 Ne6 Bd5 Rb1 a1Q Rhh4 Qa4 Nc5 Bh2 Qb7 Nd6 c8R Be5 Rc6 Qc8 Qf2 e2 Qe3 e1R Qa7 Nc7 Qe2 Ne6 Nba6 Nd8 Qc7 Nb7 Qd8+ Kf7 Qg5 Qd8 Qf4 Kf6 Qfe3 Qf4 Nb4 Ra2 Nba6 Qg5 Ra4 Qc7 Rhc4 Qh4 Rg4 Kf7 f6 Qc8 Nb3 Ke6 f7 Kf6 Rcc4 Qc5 Rc2 Qb4 Rc6 Bf4 Nbc5 Be5 Qd4 Qc4+ Ke3 Qgh3 Rg3 Kf5 f8Q+ Nf7 Qe7 Bb8 Bh1 Bf3 Rgg6 d5 Bg2 Nfd6 Rg3 Qc1 Kd3 Qh2 Qdf2 Qh1 Q7e3 Kf6 Rg5 Q1h3 Bh1 Rg3 Qg1 Qf1 Re5 Rg7 Rg5 Qff2 Bg2 Qfg3 Rgg4 Qgh2 Bf1 Bh1 Bg2 Q2h3 Be4 Qg2 Bf3 Qc4+
5r2/B1Q2Pnk/3P1n2/Q2p2n1/RQ2P3/2Qbbr1B/r2BRq2/Nn1K2q1 w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 h5 gxh5 e6 a4 Nc6 axb5 Nb8 d4 f5 d6 Qf6 d5 exd5 Nd2 Qd8 e4 f4 Nc4 Na6 Ne3 fxe3 Qd3 Nb8 Qd2 Rh6 Qd1 Rh8 h4 Kf7 f4 g5 b4 Kg7 f5 c5 h6+ Kh7 f6 a5 f7 c4 b6 a4 b7 g4 h5 g3 b5 e2 b6 g2 Qd3 a3 Kd2 e1N Rh4 a2 Nf3 g1Q Qc2 c3+ Kd1 Nc6 b8B Nf6 b7 Ne7 Bh3 Ra3 Ba7 Qdb6 b8Q Ba6 Nd4 Bd3 Bd2 Nf5 Nb3 Qbf2 Qb4 Ng7 Rg4 Be7 Rg2 Rf8 Qa5 Bd8 Rh2 Bb6 Qb2 Qfg3 Re2 Be3 Qc2 Q1f2 Qb1 Nf3 Qc7 Kh8 h7 Ng5 Qb2 Ra4 Qa3 Qg4 Qb4 Ra3 Rc1 a1R Qca5 R1a2 Na1 N7e6 Rb1 Kg7 h6+ Kg6 h8Q Ng7 h7 c2+ Kc1 Rb3 Qg8 Qgg3 h8Q Rc3 Rb3 Qgg2 Ra3 Qgg1+ Bf1 Rb3 Qh3 Rc3 Qd7 Rb3 Qh8 Rc3 Qhh3 Rb3 Qf3 Kh7 Ra4 Bb5 Bb6 Bf4 Qd3 Bc4 Qd4 Rf3 Bc5 Be3 Qdc7 Bd3 Ba7 Ra3 Kb2 c1N Bh3 Na2 Qdc5 Nc3 Qcc4 Qgg2 Kc1 Nb1 Kd1 Ra2 Qcc3 Qgg1+
2Q2b1n/1pr1qN1P/R5RB/2b1rP2/B2Pk3/1BQ3Q1/1n1b3b/B2qnK2 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 c4 f6 b4 axb4 Nc3 d5 cxd5 f5 Ne4 f4 Nf2 Bf5 gxf5 Ra5 Ng4 hxg4 Qb3 Ra4 Qd1 Ra8 e4 Ke7 a4 c5 h4 g5 e6 Kd6 h5 Ke5 a5 f3 a6 b3 h6 c4 d3 c3 e7 g3 e8B g4 h7 g2 a7 f2+ Ke2 g3 d6 b2 d7 b1Q Qa4 c2 Qa3 Ne7 Nh3 g1B Bh6 c1B Ng5 Bh2 Rg1 g2 Nf7+ Kd4 e5 Ng6 e6 Qe7 d8B Nc6 Ra2 Na5 Ba4 Rc8 a8Q Rc7 Qb8 Bd2 Qc3+ Kd5 Bb3+ Nc4 Ra6 Rg8 Ba4 Nb2 Qc8 Nh8 Qb8 Qf6 e7 Rg4 e8Q Re4+ Be3 Qd6 Bf6 Qe7 Qec8 Re6 Be5 Qc1 Bh6 Qc2 Kf3 Qd1+ Be2 f1N Kf2 Ne3 Bg4 Qc1 Bgd1 Nc2 Bd4 Ne1 Bdb3+ Rc4 Qg3 Qd1 Rh1 g1B+ Kf1 Bf2 Rg1 Re2 Qf3+ Re4 Rgg6 Bfg1 Qg3 Re5 Bb6 Bc5 d4 Bd6 Ba5 Ke4 Bb4 Rc7 Ba3 Nc4 Bb2 Bc5 Ba1 Nb2
rb2N1r1/1R1NbQb1/6Q1/bnR2rN1/3P1Kp1/1PR4r/1B1k2P1/N1q2n2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 e3 f3 h5 Bg4 Be2 Bf5 Kf2 Bg6 hxg6 fxe2 Kg3 Ke7 d6+ Ke6 b6 Kf5 b3 Ke4 d7 Kd3 e4 e1B+ Kg4 h5+ Kf3 a5 g7 f5 b7 c5 e5 c4 e6 g4+ Kf4 c3 e7 c2 e8R h4 Nf3 h3 Bb2 c1B Na3 h2 Nb1 a4 Ng5 a3 Re2 a2 Nh7 Nc6 b8N Qc7+ Be5 Nf6 g8N Na7 d8Q+ Nd5+ Kg5 f4 Qd7 f3 Qf7 f2 Bb2 f1R Re7 Ne3 Na3 Nb5 Nc2 Qc8 Ra7 Be7+ Ngf6 Rg1 Rb1 a1B Rb7 Rg8+ Kf4 Nf1 Ng5 Qc3 Ne8 Qc6 Ba3 Bg7 Na1 Bcb2 Nd7 Qc1 Qc2+ Ke2 Kf5 Bbe5 Bb2 Bb8 d4+ Bd2 Qc6 Ba5 Qcg6 Kd1 Ke4 Kd2 Kf5 Ne3+ Ke4 Re1 Rf1 h1R Rf5 Rh3 Rc5 Nf1+ Kf5 Nd6+ Kf4 Re5 Rc3 Nb5 Rc5 Qc2 Rc1 Qb1 R1c4 Qc1 Rc3 Rf5+
rkn3n1/1b1B2P1/2RR4/3qN1R1/PK3Bbp/Rb1rn3/2P1Q1n1/1Q2Qb2 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 Nc6 b4 axb4 f6 Nb8 h4 Kf7 g4 Ra4 f5 Bh6 Nc3 Bf8 Nce2 Bg7 Nf4 gxf4 g5 Bh6 g6+ Ke8 Bb5 Ra7 Bf1 Bg5 hxg5 Ra8 Kd2 b5 a4 d5 c6 h5 c7 Kd7 g7 e5 f7 b3 Kc3 b4+ Kd3 f3 f8Q e4+ Kd4 h4 Kc5 f2 g6 b2 f6 b1B f7 d4 Qd3 b3 Qc4 d3 Kb5 e3 Qa3 e2 f8Q e1N Qcb4 b2 Qab3 d2 Qe3 d1N Qff3 Bb7 c8R Nc6 Qfe2 Nce7 Nf3 Ba2 Rc6 b1B Bh3+ Be6 Ra3 Ba2 Qb1 f1B Kb4 Bb3 Bd2 Nc8 Ne5+ Ke7 Qg3 Ng2 Qge1 Qd5 Bf4 Kd8 Bf5 Rh7 Rh3 Rh8 Rd3 Nde3 Bh3 Bg4 Rd1 Bf3 Bd7 Bg4 Rd3 Qe6 Rdd6 Qd5 Ra6 Kc7 Rab6 Nh6 g8R Kb8 Rbc6 Rh7 g7 Rh8 Rf8 Ng8 Rf5 Rh6 Rg5 Rf6 Bg3 Rf3 Bh2 Nc4 Bg3 Rd3 Bf4 Nce3
2qq2n1/2r1Rrr1/kb2q1B1/r1p2B1Q/P6n/P5RB/QBKR3P/N3r3 w - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 hxg4 d6 a5 b3 a4 bxa4 e5 e4 Qd7 d4 Qf5 d5 Qf4 Nc3 Na6 Nb5 Qg5 Nd4 exd4 f3 Bf5 e5 Be4 fxe4 Nb8 Qc2 Qf6 Qd1 Qd8 Kd2 Kd7 a3 Kc8 e6 b5 d7+ Kb7 e5 f5 d6 g5 e7 g3 e8B b4 e6 b3 e7 d3 Kc3 b2 Bg2+ Nc6 Qd2 b1R Ra2 g4 Rb2+ Ka6 Be4 f4 B8g6 f3 e8B g2 Qd1 d2 Rc2 g3 Bh7 f2 Bef5 f1R Qh5 d1Q Beg6 Qg4 Ne2 g1R Bb2 g2 Nd4 Ne5 Nb3 Rbe1 Re2 Nf3 Kc2 Nh4 Re7 c5 Be6 Rf7 Na1 Bg7 Bgf5 Be5 Bhg6 Qc8 d8R Rhh7 d7 Bc7 Qh6 Qg5 Qh5 Bb6 Bh3 Rhg7 Bef5 Rgf1 Rg1 Qg4 Be4 Qe6 Bef5 Ra7 Rde8 Rc7 d8Q Rf4 Rd7 Rb4 Rd2 Rb5 Qd5 Ra5 Qa2 Qd8 Re7 Qec8 Rf1 g1Q Rf3 Qe3 Rg3 Qee6
4R1q1/q2qN2K/2nb1rpP/N7/PQ1n2BB/nN3Pr1/1N3Qn1/1kn3Q1 w - - 0 1 legal: proof: f4 d5 e4 f5 exf5 h5 a4 a5 c4 Be6 b4 axb4 cxd5 Bd7 Ra3 Bb5 Rg3 Be2 Rg4 Bf3 gxf3 hxg4 Kf2 Kf7 Ke3 Kf6 Ke4 c5 h4 e5 d4 b5 h5 c4 h6 b3 d6 b4 d5 c3 d7 c2 d6 g3 Na3 b2 Ne2 b1Q Nd4 b3 Nc4 b2 Bh3 g2 Nb3 g1Q Bg4 Qa7 Qg1 Qa2 Bd2 b1N Be1 c1N Nb2 Qe8 d8N Qed7 Nb7 Nc6 N7a5 Nge7 Rh5 Nd4 Bh4+ Kf7 f6 Na3 f5 Rg8 Rg5 Nec6 Qf2 Re8 Qg1 Re6 Rg6 Qd8 d7 Bd6 Rg5 Qe8 d8Q Qee7 Qb6 Qed7 Ke3 e4 Qc5 Bf8 Kf4 e3 Qc2 Rd6 Qcf2 e2 Rg6 e1N Kg5 Re6 Kh5 Ng2 Rg5 Ke8 Kg6 Bd6 Kh7 Kf8 f7 Ke7 f8N Kf6 Rg6+ Ke5 f6 Kd5 f7 Rf6 Na1 Kc5 N1b3+ Kb4 Rg5 Kc3 Re5 Nde2 Re8 Kc2 Ng6 Kb1 f8Q Ned4 Qe7 Rgf8 Bh5 Bb8 Qb4 Bd6 Ne7 Rg6 Nc5 Rg3 Bg4 g6 Ne6 Qd5 Nc5 Rf6 Ncb3 Qg8+
3bNBQ1/1K3R1r/R2qPq1P/2kBR1pb/3qnq2/2q1B2B/1P4Qb/4r3 w - - 0 1 legal: proof: d4 b5 c4 e5 a4 h5 axb5 d5 cxd5 Ke7 g4 hxg4 d6+ Ke8 f4 Bd7 e4 Rh5 d5 Rg5 Na3 Be7 Nc2 Bc8 Nd4 exd4 e5 Nd7 e6 Ne5 fxe5 Rh5 Nh3 Rh8 Ng1 Bf8 Kd2 f5 Kd3 g5 Kc4 c5 h4 a5 d7+ Ke7 h5 a4 h6 f4 b6 d3 Kb5 f3 Kc6 c4 b7 f2 b8B c3 Bc7 d2 Qe1 d1Q Nh3 c2 Nf4 a3 Nh5 g3 Qe2 g2 Ng7 g1B Be3 a2 Bh3 f1Q Qg2 Qf6 Ne8 Bh2 Rf1 Rh7 Bb8 Qa5 d8R Qd4 Rf3 Bd7+ Kb7 c1Q Rc8 Qcc3 Rc5 Qd8 Ra5 Ba4 Ra6 Bg7 Re1 a1Q Ba7 Bc2 Bc5+ Qd6 Rf2 Qc1 Ree2 Kf8 e7+ Kf7 Ba3 Bd1 Re1 Bh5 e6+ Kg6 Ree2 Qf1 Rf5 Qff4 Re5 Rc8 Rf2 Rc4 Bc5 Ra4 Rf1 Ra1 Rf2 Re1 Rf3 Qd8 d6 Bf8 d7 Qc7+ Ka8 Qcd6 d8Q Qf7 Bb4 Nf6 Qh1 Qd7 Nd6 Qg3 e8B Be7 Rff5 Qgf4 Qg2 Qdc7 Bd7 Qg7 Qh8 Bd8 Ne8 Qf7 Bf8 Qcd6 Kb7 Qfe7 Rc5 Ne4 Rf7 Qef6 Bc6 Qg4 Rc4 Kf5 Qg8 Ke5 Rca4 Qgf4 R4a5+ Q4d5 Bc1 Kd4 Be3+ Kc4 Rb5 Qdd3 Re5 Qd3d4 Bd5+ Kc5
1q2n3/2q2rPP/1P3RnB/kq2NB2/qp1NQ3/N2Q1n1q/1r6/2B1Kb1N w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 h5 g4 hxg4 b6 e5 dxe5 Bd6 Qd5 Be7 Qd1 Bf8 b4 g5 f4 g3 b5 g4 Ra4 Be7 Rb4 Bg5 fxg5 cxb4 c4 a5 e4 d5 h4 Kd7 c5 f5 g6 f4 b7 Kc7 g7 d4 e6 d3 c6 Kb6 c7 a4 e5 g2 e7 f3 e8Q a3 h5 a2 e6 a1Q h6 g3 h7 f2+ Kd2 Qa6 e7 Nd7 b8B Ka5 b6 Ne5 Qe2 Nf6 Na3 Ng6 Rh6 Qb5 Nh3 Ba6 c8N g1N Nd6 g2 Nf7 Qc7 Ne5 Rf8 Kd1 d2 Qd3 Ra7 Qc6 Rc8 e8N Nf3 Nd6 g1Q Nf5 Qh2 Qce4 Ne8 Nd4 Rd8 Bg2 Rd5 Bh1 Rc5 Ke2 Rc2 Bg2 Rb2 Kf1 Nf8 Rf6 Ng6 Ke2 Qc8 Bf1 Rf7 Kd1 Qc7 Be2 Ng5 Bg4 Nf3 Bf5 f1Q+ Qe1 Qe7 Nf2 Qfh3 Nh1 Qa7 Bd6 Qc7 Qee4 Qf4 Nd7 Qfg3 Bf4 Qb8 Bh6 Qgc7 Ke2 d1Q+ Ke3 Nd2+ Kf2 Qda4 Ne5 Nf3+ Qde2 Qbc5 Q2c2 Bf1 Qd3 Nh2 Ke1 Qd5 Qe4 Qdb5 Qcd3 Nf3+
1r1BknBR/QR1brRPp/r4QP1/1N5q/4r2Q/1P4R1/4r1qq/K5b1 w - - 0 1 legal: proof: h4 e5 g4 d5 f4 exf4 c4 b5 cxd5 g5 a4 Nd7 axb5 Ne5 h5 Ng6 Nc3 Bb4 hxg6 Bf8 Ne4 Qd6 Nf2 Qd8 Nfh3 f3 Nf4 gxf4 g5 Qf6 Qc2 Qe7 Qd1 Qd8 e4 Kd7 g7 f5 d4 c5 Kd2 a5 Kc3 a4 e5 c4 d6 f2 b3 a3 d5 f3 g6 f4 b6 a2 Kb2 Ra7 b7 Qh4 b8Q Qh5 Qd4 Nf6 e6+ Kd8 d7 Bc5 Bh3 f1Q Ne2 f2 Nc3 f3 Qh4 Qg1 Bg5 f1R Nb5 f2 Re1 a1R Re3 Rfc1 Rg3 Qh2 Rf1 Re1 Bg4 Rc7 Qa7 Ra6 Be2 Ke7 d8R Rg8 Bd3 Re2+ Kb1 c3 Bc4 c2+ Kb2 Bb7 Rb8 Bc6 Rb7 Rb8 d6+ Kd8 d7 Bb6 Rb1 f1Q Rc1 Qff3 Rf1 Qfg2 Bd5 Ke7 d8R Bc5 Rh8 Bg1 Bc4 Be8 Rff3 Kd8 e7+ Kd7 Rf1 Re4 Bg8 c1R+ Rf2 Rc2+ Kb1 Rce2 Rf5 Nd5 Rf7 Nf4 Bf6 Ne6 Bg5 Rc6 Ka1 Nf8 Be3 Rce6 Bb6 Kc8 Ba5 Rcc6 Bd8 Ra6+ Kb1 Bc6 e8Q R6e5 Qe6+ Bd7 Qef6 Re7 Bb6 Bg4 Bc7 Kd7 Ba5+ Ke8 Ka1 Rd6 Bb6 Bd7 Bd8 Ra6+
3q1rrq/BBQN1B2/n2q2Q1/1P1B3R/PbNK2r1/4P3/1p2b2r/3k2bQ w - - 0 1 illegal: No possible last move
6B1/3q1PP1/kn2Q2P/2rr3b/NQp4N/4BqrR/q1N2Bb1/b1q1K2B w - - 0 1 legal: proof: e4 b5 f4 d5 a4 g5 fxg5 f5 axb5 f4 c4 dxc4 g4 h5 b4 Bh6 g6 Bf8 g5 Nc6 Ra3 Nd4 Rg3 Nf5 Rg4 hxg4 exf5 Qd7 Bg2 Qd5 Bf1 Qd8 h4 Kd7 d4 e5 f6 c5 h5 Kc7 d5 Kb7 h6 a5 b6 a4 d6 f3 d7 g3 b5 f2+ Ke2 e4 f7 a3 g7 a2 g6 a1Q Qe1 c3 Rh2 c4 Na3 e3 Rh5 g2 Bd2 c2 Nf3 g1R Rh3 c1Q Bg2 Ne7 g8B Nd5 Bh1 Rg3 Nc2 Qa2 Nh4 Ra5 g7 Ba3 Kf1 Bb2 Ke2 Qc7 d8B Ba1 Be7 Qca3 Bc5 f1B+ Kd1 Qd7 Bd4 Kb8 b7 Bg2 Qe2 Q3b3 Ke1 Nb6 Bc1 Ka7 b8N Bcb7 Na6 Bbf3 Nc5 Bh5 Na4 Kb7 Qg4 e2 Bf2 Qf3 Qe6 Ka7 Bce3 Kb7 Bh7 Rc8 Bg8 Rc5 Nb4 Na8 b6 Rd5 Nc2 Ka6 b7+ Nb6 b8Q Rac5 Qb7+ Kb5 Qc7 Ka6 Qcd6 Ra5 Qb4 Rac5 Nd4 Bb2 Kd2 e1Q+ Kc2 Qeb1+ Kd2 Qc2+ Ke1 Ba1 Qf5 Qa3 Qe6 Qca2 Nc2 Qc1+
R1b2B2/5PPQ/pb2rq1R/NN2r2q/1r3qbk/r6n/Q2N1N1P/6KQ w - - 0 1 legal: proof: e4 d5 f4 b5 c4 g5 cxd5 gxf4 a4 f3 axb5 Qd6 Be2 Qd7 Bf1 Qd8 g4 h5 g5 f5 Ra2 f4 Ra1 Nc6 Bh3 Nd4 Bg4 Nf5 exf5 hxg4 Kf2 Kf7 b4 c5 d4 e5 d6 c4 g6+ Kf6 d7 Kg5 g7 c3 d5 c2 d6 e4 b6 Kh4 f6 Nh6 b7 Nf7 b8N Rh6 b5 Ng5 b6 Qe8 d8Q Qh5 f7 Re6 Nh3 g3+ Kg1 g2 d7 e3 b7 e2 Nf2 Bc5 Nc6 Bb6 Ba3 c1Q b8N Qb2 Qg8 Qf6 Qf1 e1R d8Q R1e5 Na6 Rb8 Nc7 a6 Bf8 Rb7 Ra5 Re3 Nd1 Bc5 Qd2 Qhg6 Kf2 g1R Ne5 Rg3 Ng4 Nh7 Nb2 Bd4 Rg5 Qh5 Rg6 Ng5 Rh6 Rbb6 Qg1 R3e5+ Kf1 f2 Nc4 Rgb3 Na5 Ra3 Qa2 Rbb3 Nd2 Be3 Ke2 f1B+ Ke1 f3 Qh7 Bc4 Qg2 Bd5 Kf1 f2 Rg1 Rbb6 Qh1 Bf3 Rg3 Bd1 Kg2 Bc5 Rb3 Rb8 Rb7 Be2 Ra7 Rb4 Nb5 Bb6 Ra8 Bd1 Qg1 f1Q+ Kh1 Qc4 Nf2 Qcf4 Qg2 Be2 Kg1 Bg4 Qh1 Nh3+
n3N1q1/b2NpRnk/2r5/2P2P2/1R4q1/QN3P1n/3K1q2/RQ1NbqBb w - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 b5 f4 f5 a4 c5 axb5 cxd4 Bh3 Ra6 Bg2 Re6 Bf3 Re3 Be4 Rf3 exf3 fxe4 b4 Kf7 h4 d5 c4 g5 h6 Kg6 b6 d3 h7 g4 b7 g3 b5 d4 b6 d2+ Ke2 d3+ Ke3 g2 Bb2 a4 Rh3 a3 Be5 a2 Ne2 g1N Nd4 Na6 b8R Nf6 b7 Nc7 Nc3 Bh6 Rb1 a1Q h5+ Kg7 Rh4 Qb2 Ra1 Qg8 Qb1 Bh3 Rf8 d1Q b8N d2 Nd7 Qa4 c5 d1Q Bd6 Qf1 Nd1 Nfe8 Rg4+ Bg5 h6+ Kg6 Rf5 Bg2 Rf7 Ng7 Nb3 Na8 Be5 Bh1 Bd4 Nh3 Rh4 Qb8 Rg4 Rc8 h8Q Ne6 h7 Rc6 Qc8 Ng7 Qa6 Qg8 Rh4 Qac4 Qa3 Bf6 Rg4+ Kh6 f5 Be5 Rf4 Bb8 Rg4 Qbg2 Rf4 Qg3 Kd2 Ba7 Bg1 Qa4 h8N Kh7 Rf6 Qh4 Nf7 Qg3 Nd6 e3+ Kc3 e2 Ne8 Qe4 Rf7 Qgf2 Rg4 Qf4 Kd3 Qg5 Rb4 Qg4 Kd2 e1B+
brqb1BBR/1p1N2b1/Q2Q3N/2bB3Q/3qq3/P2PQP2/6rr/1K3k1n w - - 0 1 illegal: Other
8/Qqpr1QR1/q2q3q/6q1/1P3N1P/QQn5/1RK1NPN1/b2nrBqk w - - 0 1 legal: proof: g4 f5 gxf5 d5 a4 b5 axb5 h6 c4 Kd7 e4 dxe4 b3 Ba6 Bb2 Ke8 Bf6 Bb7 Bg5 Bd5 cxd5 hxg5 d4 Kd7 Kd2 Kd6 h4 e5 b6 a5 b4 a4 f6 g4 b7 g5 f7 a3 Rh3 a2 Bg2 e3+ Kc2 e4 Ne2 g3 Qc1 g4 Rh2 Rh7 Kc3 Nc6 b8Q Na7 Bf3 g2 Kc2 g1Q Rg2 g3 Qb2 Ne7 Qb7 Nf5 Qc1 Bg7 f8N Nb5 Ng6 Nc3 Rh2 g2 Nef4 e2 Qb8 e1Q Qa7 e3 Qca3 e2 Rh1 Qh2 Rg1 Qg5 Be4 Re8 Bd3 Qf1 Bb5 e1Q Be2 Nd1 Nc3 Ne7 Rb1 a1Q Rb2 Qh6 Bb5 Qe5 Nce2 Qeg5 Qb3 Qa6 Bc4 Kd7 d6 Kc6 d7 Nd5 d8Q Qb7 Qe7 N5c3 Qf7 Kd6 d5 Bh8 Rh1 g1Q Ng2 Qhg3 N6f4 Ke5 d6 Ke4 d7 Kf3 d8Q Bf6 Qg8 Rd7 Qda8 Q3h2 Qf7 Bd4 Ng3 Re1 Bb5 Qc4 Nge2 Qcc6 Qaa3 Qca6 Qa7 Bf6 Ng6 Qhd6 N6f4 Bg7 Rh3+ Kg4 Re3 Bf6 Re7 Be5 Nd5 Kh3 Ndf4+ Kh2 Qfc4 Qhh5 Rg7 Qhh6 Qf7 Bd4 Nc1 Kh1 Bf1 Bf6 Nce2 Nb5 Rb1 Ba1 Rb2 Nbc3
qnn1B1bb/4qR2/rpB1B2k/N2R1q1q/Q7/B1PQ3n/2KR2PP/2n5 w - - 0 1 illegal: No proof kernel
2N5/n2rQ1RB/nB2n3/QRp3K1/b1PPB3/b1r1BR2/P3b3/2nbk1b1 w - - 0 1 legal: proof: f4 e5 fxe5 a5 e4 h5 b4 Qf6 g4 Qf5 Nc3 axb4 Nd5 f6 Ne3 d5 exd5 Qe4 Kf2 f5 Ke2 f4 Ke1 Qf5 gxf5 Nc6 Ng4 hxg4 Ke2 Nb8 Kf2 Kd7 Ke1 Ke8 Kf2 Ke7 h4 g5 c4 b5 d4 b3 h5 f3 Ke3 f2 h6 b4 e6 Kf6 e7 g3 e8B g2 d6 g4 Kf4 b2 d7 b1B d8R b3 h7 g3 Qg4 b2 Bc6 Bc2 Rh3 b1N Bb7 Bd7 Bc6 Nd2 Bf3 Ra7 Be4 Nf3 Rc8 Bd1 Qh4+ Ng5 Be3 Ba3 Ne2 g1B Nc3 g2 Na4 Na6 Rb1 Ne7 Rb5 Nc6 Bfd3 f1B Nb6 Bfe2 Rf3 Rb7 Ra8 Na7 Rg8 c5 Nc8 Bc6 Rg7 Rd7 Qe1 Ne6+ Kg4 Rf8 Qa5 Re8 h8Q Ree7 Qe8 Rf7 Rb1 Bca4 Rb5 Rf8 Bf4 Rh8 Bc7 Rh6 Bb6 Rg6+ Kh3 Kg5 f6 Kh5 f7 Kg5 Rg3+ Kf4 Kh4 Rg5 Re3 Rg3 f8B Rf3 Bc2 Rg3 Reb3 Rc3 Qe7 Ke3 Bh7 Kf2 Bce4 Rc1 Rh3 Rc3 Rf3+ Ke1 Rg4 Bh2 Bh6 g1N Be3 Bf1 Bc6 Ne2 Rg7 Nc1 Bce4 Bfe2 Kh5 Bg1 Kh6 Nec7 Kg5 Ne6+
1r1brK2/bR6/1Q1P1N2/1p1QrbkB/5rPr/1PN4Q/r2N4/nR1rN3 w - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 g5 f4 e5 a5 exf4 Nc3 Qd6 Nb1 Qb6 axb6 Ke7 Qc2 Kd8 Qd1 Ke8 g4 Nd7 b3 Ndf6 h4 Ne4 Ba3 f3 Qc2 f2+ Kd1 Nd6 Kc1 Bh6 Qd1 Ne4 Bd6 Bf8 Bf4 gxf4 Nc3 Ba6 Nb1 Ng5 hxg5 Bc8 Kb2 Ke7 Kc3 h5 Kd4 f5 Ke5 a5 d4 c5 e4 h4 b7 f3 b8N f4 g6 h3 g7 h2 Bg2 f1R Qe1 f2 Na6 c4 Nc3 f3 Nge2 a4 Nc5 a3 Nc1 a2 Qe3 Bf5 Rb1 a1R N1d3 Rd1 Ne1 Nf6 g8Q f1R Qgg5 f2 d6+ Kf7 d7 Nd5 d8Q Rb8 Qh3 Be7 Qb6 Bd8 Kd6 Ra2 e5 Ne3 d5 Re8 N5e4 Nc2 Nd2 Na1 Be4 Rg1 Bd3 f1R Bc2 Rf4 e6+ Kf8 e7+ Kf7 Qg8+ Kf6 Qe6+ Kg5 Be4 Rg8 e8N Rg3 Qe5 Re3 Nf6 Re8 Rf1 h1R Qed4 Bd7 Bg6 Bf5 Bh5 R3e4 Qe5 Re2 Qe6 Re5 Kd7 Rh2 d6 Rh1 Qg2 Rh4 Qh3 Be4 Qd5 Bg6 Na4 c3 Rf3 c2 Nc3 c1B Re3 Ref5 Re7 Ba3 Rg7 Bc5 Re7 Bf2 Ke6 Bh7 Kf7 Re5 Rb7 Bf5 Kg7 R8e7+ Kf8 Bc5 Qbc6 Ba7 Qb6 Re8+
2RRq2r/5NQ1/pqPP3n/P1Kn1Q1R/k1nBqqR1/6q1/5QrN/2n5 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 bxc5 e5 Nh3 e3 Ng1 e4 Ba3 Be7 Bc1 Bd6 Be2 h5 Bg4 Be5 fxe5 f5 Bf3 f4 g4 Bf5 gxf5 Na6 Be2 Nb8 Bg4 hxg4 Ke2 Kd7 d4 Kc6 c4 b5 a4 g5 h4 a6 h5 b4 e6 g3 f6 g4 e7 b3 e8R b2 f7 g2 f8Q g3 h6 Qd5 a5 Nd7 h7 Nh6 Qf1 Nb6 Nh3 g1Q Qf5 g2 Nd2 b1N Rd8 Na3 Qf2 Qe6 Rb1 Nd5 Nf3 Qe8 Bb2 Ra7 Re1 Rg7 Nh2 Rg3 Ng5 f3+ Kd1 e2+ Kd2 e3+ Kd3 Rg4 Nf7 Rg7 Rb1 e1Q Ba1 e2 Rb4 Rg3 Ra4 Qb4 Bb2 e1Q Ba1 Rhg8 h8Q Qb6 Qg7 Rh8 Bc3 Q1e6 Bb2 Qge1 Rb4 g1N Bc3 Kc7 c6 Rg2 c5 Ne2 Ra4 Nc4 Rb4 Nf6 d5 Nc1+ Kd4 Q6e2 Ng4 Q2e6 Rh5 Qd6 Nh2 Qg3 Qd2 f2 Ba1 f1Q Qdf2 Q1e6 Bc3 Qc8 d6+ Kb8 c7+ Kb7 Qd2 Nb2 Qb1 Kc6 Qf5 Qce6 Qe1 Qff3 Qf2 Nd5 Rc4 Kb5 c8R Qc7 c6 Qee2 Bb4 Ka4 Kc5 Qed3 Rf4 Qde4 Rg4 Qff4 Bc3 Nc4 Bd4 Qb6+
1b5n/3bn3/1P5R/2QBpNN1/1Kpn1P1P/Q3B2N/r3rq1r/1b1NBk2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 g5 e3 f4 exf4 Be6 Qf3 Bg4 Qd1 Bc8 b4 h5 Ra3 g4 Rh3 Bd7 f3 Bf5 Rh4 gxf3 g4 Be6 g5 Bc8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 Kc3 e5 g6 a5 b6 c5 g7 a4 h3 a3 b7 a2 b5 a1N b6 c4 Be3 f2 Bg2 f1B Kb4 g3 Qb3 Qh4 Qa3 Nh6 g8N Bd7 Nc3 Bd3 Ne7 Nf7 Nd1 Bb1 Be4 g2 Rh2 Bc8 Bf3 Qf2 Nf5+ Kd7+ d6 Ke6 Bc6 Nb3 d5+ Kf6 Rh1 Nd4 Rh2 Be7 Rh1 Bd8 d7 Bc7 d8N Bd7 d6 Rh7 Ne6 Nh8 Bd5 Nbc6+ Kc5 Ra4 b8Q Ne7 Qc8 Bb8 Ng5 Kg6 Rh2 Kh5 Qc6 Ra6 Kb4 Ra7 Qc5 Rh6 Ne2 g1R Rh1 Re1 Ng1 Re2 Rh2 Be6 d7 Ra5 d8B Bd7 Qd3 Raa2 Qa3 Ng8 Ne6 Rh7 Bh4 Ne7 Ng5 Qf3 Be1 Qf2 Nh6 Kh4 Rh1 Kg3 Rh2 Nf3 Rh1 Kg2 Nf5 Rg7 h4 Rg6 N1h3 Rd6 Rh2+ Kf1 Rg2 Rg6 Nh7 Rg8 Rg6 Nd4 Rh6 Rg2 N7g5 Rh2
1Q3bN1/2Qqq1k1/KBNNRn2/Pb2p3/r1br2P1/5PRn/1p4R1/5nN1 w - - 0 1 illegal: No possible last move
Nn2n2r/4bQ2/1B2NP1q/1K2RPp1/5P1b/qNRpQr2/5bR1/3N1k1q w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 exf5 b5 axb5 Bb7 Be2 Bd5 Bg4 Bf3 gxf3 hxg4 Kd2 Kf7 Kd3 Kf6 Kc4 a5 h4 g5 b4 e5 h5 d3 h6 d2 b6 d5+ Kb5 a4 c4 a3 b7 e4 h7 g3 c5 d4 c6 g2 c7 d3 c8R a2 Qe1 d1Q Nc3 e3 Rh2 e2 Be3 Nh6 Nh3 g1Q Rg2 Qb3 Nd1 Be7 Rc3 Ra3 Bb6 Rg8 h8Q+ Rg7 Qf8+ Nf7 Qf2 e1B Qe3 Qh1 Rac1 Nc6 b8N a1B Na6 Qd6 Nc7 Nb8 Na8 Bh4 R1c2 Rh7 Rce2 Ra2 Qg8 Rh8 Re1 Rf2 Qe8 Kg7 f6+ Kg6 f5+ Kh5 Qg8 Qdh2 Nf4+ Kh6 Ne6 Kh5 f4 Rf3 Ree2 Qa3 Qf8 Rg3 Qg8 Kg4 Qe8 Kh3 Qf8 Nd8 Qf7 Nb7 Qg1 Kg4 Kc4 Kf3 b5 Qa2+ Rb3 Na6 Bd4 Qa3 b6 Qh3 Be3 Bd4 Kb5 Q3h2 Rc3 Nd6+ Kc6 Ne8 b7 Rh3 b8N Bg3 Nd7 Nb8+ Kb5 Be1 Ndc5 Rg3 Rcc2 Qh6 Rc3 Rh3 Nb3 Bh4 Bf2 Ba7 Re5 Be3 Qh2 Ke2 Qg3 Kf1 Qf3 B3c5 Qe4 Rf3 Bg1 Bcd6 Bb6 Bc5 Qd4 Qh2 Qe4 Bcf2 Qe3 Qh1
3qqNRR/6B1/2n1p1rQ/B3B3/3PqRQ1/2b1nrKn/2pPP3/5kbR w - - 0 1 legal: proof: a4 d5 g4 b5 axb5 d4 c3 Qd6 cxd4 Qc6 f3 Qd5 g5 Bg4 fxg4 Qd8 Bh3 g6 Na3 Qd6 Nc2 Qd5 Ne3 Qd8 Nf5 gxf5 g6 h6 g5 h5 Bg4 hxg4 Kf2 Kd7 b4 Ke6 h4 a5 b6 c5 b7 a4 h5 g3+ Kf3 f4 h6 Kf5 b5 c4 h7 c3 b6 g2 g7 e6 g6 c2 Nh3 g1B Rh2 a3 Rb1 a2 Rb2 a1Q Ng5 Nf6 g8R Qa4 g7 Nd5 Qf1 Nc6 b8B Bb4 b7 Bc3 Rf8 Rg8 Kg2 Kg4 h8B f5 Be5 f3+ Kh1 f2 Kg2 f4 b8Q Ra7 Rb1 Rf7 Qe1 f1N Bb2 Qb5 Nh7 f3+ Kh1 f2 Kg2 Qa4 Ba3 Rf3 Bb4 Qa8 Ba5 Nf4+ Kh1 Nh3 Rf4+ Kg3 Nf8 Ne3 Qb7 Nb8 Qe4 Nc6 Qh7 Qe8 Qh6 Qad8 Qc1 f1Q Qa3 Qed7 Qe7 Q7e8 Qeg5+ Ng4 Qgh5 Ne3 Ra1 Qb1 Qf5 Qb7 Qfh5 Ng2 Qg4+ Kf2 Rb1 Qba8 Rb8 Ke1 Rc8 Ne3 Rb8 Nd5 Kg2 Rf2+ Kg3 Ne3 Rh1 Kf1 Nh7 Rf8 g8R Rf6 Nf8 Rg6 Bhg7 Qa6 Rb7 Qd3 Rbf7 Qe4 R7f5 Qd6 Rh5 Qde7 Qhg5 Qf6 Rhh8 Qfd8 Qh6 Rf3+
rQqb2qQ/3K4/k2PN2b/pR3P2/Q1nP4/NnNN1R1b/p7/5rBr w - - 0 1 legal: proof: c4 b5 f4 h5 e4 g5 a4 bxa4 g4 d5 cxd5 f5 exf5 Rh6 Bh3 Rc6 fxg5 Rh6 g6 Rh7 g5 Rh8 Bg4 hxg4 Kf2 Kd7 Kg3 a5 Kf4 c5 Ke5 Kc7 h4 Kb6 d4 a3 b4 e6 d6 c4 b5 c3 g7 a2 h5 g3 g6 c2 h6 g2 h7 Qe8 Ne2 g1B Nec3 Bb7 Na3 Na6 Rh3 Be7 Rf3 Nc5 Be3 c1Q Rb1 Bd8 Qa4 Nf6 g8Q Nfe4 g7 Nd2 Rb4 Ka7 b6+ Ka6 Rb5 Ncb3 Bf2 Be4 b7 Qc2 b8Q Nc4+ Kf4 Qg6 Qe8 Bd3 g8N Bf1 Nh6 Bh3 Ng4 Qg8 Ne5 Qc1+ Be3 Qc2 Nd3 e5+ Ke4 Bh2 Qf8 Bf4 Bg1 Bh6 Qf6 Qf8 Kd5 e4 Ke6 e3 Qg7 e2 Kd7 e1R Qe5 Rf1 Qe8 Rg8 h8N Rg7+ Nf7 Qg8 Qf8 Rg4 Ng5 Rh4 Ne6 Qc1 Nc2 Qa3 Qe8 Qc5 Qf8 Bg4 Qe8 Rh1 Na3 Bh3 Qf8 Ne3 Qf6 Nc4 Qh8 Qc8+
N1B4N/2q5/1PqP1QN1/3p4/R1bRr3/3bKNQ1/RPk1p3/2nbn1nr w - - 0 1 legal: proof: e4 d5 h4 b5 d4 c5 dxc5 g5 a4 gxh4 axb5 f6 Bf4 Bh6 Bh2 Bf4 Bg3 Bd6 e5 Ba6 exd6 Bc8 Be5 fxe5 Ke2 Kf7 g4 Kf6 c4 h5 f4 a5 b6 e4 c6 e5 c5 h3 c7 h2 g5+ Kf5 c6 e3 g6 Ke4 g7 h4 f5 h3 f6 a4 f7 a3 f8Q a2 Qc1 Nd7 Qf6 Ba6+ Ke1 e2 Kd2 e1N c8R Nc5 c7 Nh6 g8N Ncd3 Ke2 Ng4 Qc6 Nc1+ Kd2 Nf2 Na3 Bc4 Nb5 Ra4 Nh6 Qd7 Qc5 Qc6 Nf7 Rh7 Rb1 a1Q Nf3 Rb4 Rb8 Qa7 c8N Qac7 Nh8 Rh6 Rg1 h1B Ra8 h2 Ne7 Nh3 Ra2 Rh5 Rg6 Ng1 Rba1 Bg2 Qf2 h1B Be2 Bf1 Qg3 Ra4 Bd1 Bfd3 Rg7 Bg2 Neg6 Rh1 Rh7 Bh3 Rh4+ Bg4 Be2 Ra8 Bf1 Re8 Bh3 Re7 Nf4 Bh5 Bc8 Bg4 Ra4 Re8 R1a2 Re6 Nfd4 Bd1 Nf3 Re8 Kc3 Ke3 Nfg6 e4 Rf4 Ke2 Kd4 e3 Rh4 Qb8 Nc7 Re4+ Kc3 Qa7 Na8 Qac7 Rf4 Bdb3 Rg4 Kd1 Rh4 e2 Rf4 Re8 Kd4 Kc2 Re4 Kb1 Ke3 Bd1 Ng5 Kc2 Nf3 Rd8 Rd4 Rf8 Qg7 Rf4 Qf6 Re4+
1QqR1N2/4PkrP/nQ2n3/3Nq1Q1/5pB1/4P1NK/rp3B1N/qn3b1b w - - 0 1 legal: proof: b4 a5 g4 axb4 f4 f5 c4 h5 a4 e5 fxe5 d5 cxd5 Qd6 g5 Qd8 Ra3 Bc5 Rg3 Be7 Rg4 Bf6 gxf6 hxg4 Kf2 g5 Kg2 c5 d4 b5 h4 f4 d6 c4 d5 c3 e6 b3 h5 c2 h6 b4 a5 g3 a6 g4 a7 b2 h7 b3 e7 Nh6 d7+ Kf7 d6 Ba6 Nd2 b1B Ne4 b2 Be3 c1Q Nf3 Qdc7 d8Q Rg8 d7 Qe5 Qb6 Qc8 d8Q Nf5 Bf2 Ng7 e3 Ne6 Q1d5 Rg7 Nh2 Be2 Qdc7 Na6 Qcb8 Ba2 Qda5 Bd5 Qac5 Bd3 Be2 Bb7 Rd1 Bd5 Kg1 g2 Ng3 B5e4 Bf3 Bf1 Rd8 Bd5 Qc2 Bb7 Qf5 Be4 Qg5 Bc6 Be1 Bb7 Kf2 g1N Be2 Nf3 Bd1 Bc4 Kg2 Nd2+ Bf3 Nb1 Bf2 Bb3 Nf5 g3 Kh3 g2 Bg4 g1Q Ng3 Ba2 Q8c7 Rb8 a8N Bh1 Qca7 Qe1 Nc7 Ra8 Nd5 Bc4 Qac7 Qa5 Qcb8 Qa1 Qh4 Kg6 f7 Ra7 f8N+ Kf7 Qg5 Bf1+ Kh4 Nb4 Ng6 Ra2 Nf8 Be2 Kh3 Na6 Nhf1 Bb5 Nh2 Bf1+
1R1b4/3P3n/n2Qnb1r/3p4/1RR2q1p/2BP1Bk1/K1PQ2rq/1N1R1b1B w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 hxg5 d5 e4 Bh3 e5 Bc8 Na3 Nh6 Nc4 Ng8 Nd6+ cxd6 exd6 Bb7 Qf3 Ba6 Qd1 Bc8 b4 Kd7 g4 Ke6 b6 Ke5 d7 h5 b5 f5 g6 a5 g5 a4 b7 a3 b6 f3 g7 Kf4 g6 h4 Rb1 a2 Bg2 a1B Bb2 Bc5 Bc3 Rh6 Rb4+ Kg3 Rc4 Nf6 g8R f4 g7 Na6 b8Q Bb2 b7 Be7 Qd6 Nh7 b8R Qc7 Rbb4 f2+ Ke2 f1N Kd3 Bd8 Bf3 Ne3 Ne2+ Kf2 Rh8 Nf5 g8B Nd4 Qc1 Ne6 Rd1 Ba1 Bf7 Bb7 Bh1 f3 Bh5 Bc6 Bg4 Bb5 Rg8 Bg5 Rb8 Bd8 Be5 Bb2 Nc3 Ba1 Nb1 Bc3 Bg7 Bcf6 Qc5+ Kg3 Qd6+ Be5 Bh5 f2 B5f3 f1Q+ Be2 Qf7 Bef3 Qf4 Bf6 Nd4 Kc3 Ne6+ Kb3 Bb2 Bh8 Bc3 Ka2 Bcf6 Rc5 Bf1 d3 Qb7 Qd2 Qc7 Qb6 Qce5 Qd6 Qe2 Rcc4 Qh2 R8b7 Rc8 Rb8 Rc6 Rc3 Rc4 Bg7 Re4 Rcc4 Re2 Bh8 Rg2 Bg7 Bfe7 Bc3 Bf6
1R2R2R/PnQ2q2/rQb2r2/1N1R2n1/2P2q2/2pq4/1Ppk1KNQ/r2B3b w - - 0 1 illegal: No proof kernel
BK1bn1qB/p1Q2R2/2bPP1k1/p1q1q1n1/1r2NP2/1Q1rN3/1Qb1NN2/8 w - - 0 1 legal: proof: c4 h5 g4 d5 gxh5 b6 cxd5 Rh6 a4 Rh8 a5 bxa5 d4 Kd7 b4 e5 d6 Kc6 Qb3 f5 Qf7 f4 d5+ Kb6 Ra2 f3 Rd2 Kb5 Rd4 exd4 Nxf3 Bd7 Ng1 Bc8 Kd2 Kc4 e4+ d3 Ke3 g5 h4 c5 f4 g4 e5 g3 Ke4 g2 b5 Bg4 b6 Be2 b7 d2 d7 d1B e6 Ba4 Ke5 Kd3 h6 c4 h5 c3 h7 c2 h6 Bc6 Na3 Ne7 Kd6 Ke4 Nc4 Rg8 h8N Rg6 h7 Bd3 Ne3 Bdb5 Bb2 c1Q Ne2 Na6 b8Q Bd3 Qb3 Rg3 Ng6 g1Q h8Q Rb8 Ne5 Qe1 Rh7 Nc7 N5g4 Rb4 Bg2+ Rf3 Ba1 Bc2 Qhb2 Ng8+ Qe7 Qb8 d8N Nf6 Rf7 Nh7 Nb7 Ng5 Bh1 Bh6 Qd7 Qg8 Qc8 Na6 Qc7 Bg7 Bg2 Bf6 Bh1 Bd8 Bg2 Qc3 Bh1 Kd3 Nc5+ Kd2 Qb6 Rf1 Nd1 Rf3 Q2a2 Bb5 Qb7 Qgd4 Ndf2 Nc7 Qc8 Qdc4 Bb2 Qe3 Bh8 Qed4 Qd7 Rd3 Qab2 Qf6 Qc6 Qe5+ Kd7 Qcd4 Kc8 Ne8 d6 Qde3 Kb8 Q3d4 Nf6 Ke3 Qc7 Bd7+ Bb7 Bc6 Nd5+ Kf3 Nce4 Qc5 Nh3 Kg4 Ne3+ Kh5 Nhf2 Rc4 Ba8 Kg6 Qc8 Ra4 Qc7 Rb4+
1KN1Q1Bq/3r1r2/bN1rR1n1/B1P2rp1/2QP4/6p1/1P1BQ3/nknb1Q2 w - - 0 1 legal: proof: g4 c5 d4 h5 dxc5 hxg4 a4 d5 e3 b5 axb5 d4 Bc4 f5 Ra5 e6 Bd3 Be7 Bf1 d3 Ra4 Bf6 Re4 Bd4 exd4 fxe4 Kd2 Kd7 Ke3 g5 f4 a5 h4 a4 c4 e5 c6+ Kd6 b6 a3 b7 d2 h5 a2 c7 a1R h6 g3 h7 Ne7 f5 Qe8 f6 R1a4 f7 R8a5 f8Q Nc6 b8B Nb4 Nc3 Nd3 Nh3 Ba6 Qe2 d1B Bd2 Nc1 Nd5 Rg8 h8Q Rg7 Bg2 Rf7 Nf2 Rb4 Rh2 Rb7 c8Q+ Rc7 Ba7 Rd7 Bb6 Qd8 Qe8 Ng6 Qh3 Qf6 Bd8 Qh8 Nb6 Rd5 Bc7+ Kc6 Bf3 Rd6 Qhf1 Rf5 c5 Rf7 Rh6 Rf5 Nd3 Kb5 Nb4+ Ka5 Qa8 Rff7 Nc8+ Ka4 Bg2 Kb3 Nd5 Kc2 Bca5 Kb1 Ndb6 Rf5 Qd5 Rff7 Qdc4 Rf5 Bdb4 Rff7 Kd2 e3+ Kc3 e4 Bf3 Rf5 Bg4 Rff7 Be6 Rf5 Bg8 Rff7 Qef2 e2 Qe3 e1R Qee2 Ne7 Re6 e3 Qb3 Ng6 Qbc4 Na2+ Kd3 Nc1+ Ke4 Rf5 Bd2 Rff7 Qff2 Rf1 Qfe1 R1f6 Q2f1 e2 Qef2 e1N Q2e2 Nf8 Ke5 Nc2 Bab4 Na1 Ba5 Ra7 Nd7 Rc6 Ndb6 Ng6+ Kd5 Rcc7 Kd6 Rf5 Qc6 R7f6 Qe8 Rh7 Kc6 Raf7 Kd6 Ne7 Kc7 Ng6+ Kb8 Rd7 Re3 Rfd6 Re6 Rhf7
nNNB3k/N1q4B/3P3K/p1BP1r1n/3n4/p1rR3b/3b1QPn/3N1bQ1 w - - 0 1 legal: proof: b4 b5 e4 d5 c4 f5 cxd5 g5 exf5 Nc6 a4 Nb8 h4 c6 hxg5 bxa4 b5 c5 Ra2 Qc7 Rb2 Qd8 Rb4 cxb4 Ke2 Kf7 Ke3 Kg7 Kf4 h5 d4 a5 b6 h4 d6 b3 f6+ Kh7 f7 b2 b7 h3 Nf3 h2 Nc3 b1B Ne5 a3 Nc6 Bh3 Na7 Bh6 f8Q Nc6 b8N Bd3 d5 e6 Be3 Nge7 Bc5 Nd4 Qf6 Ba6 Bd3+ Kg8 f3 Nc8 Qg1 Nb6 Nd1 Qc7 Bb1 Bf1 Bc2 Bg7 g6 e5+ Kg5 e4 f4 e3 f5 e2 Be4 Bf8 g7 e1N Bd3 Kh7 g8N Bh6+ Kh5 Bf4 Ne7 Bd2 Nec8 Nef3 Qf8 Rg8 f6+ Kh8 Qf7 Rg5+ Kh6 Nc6 Bh7 Ncd4 Qe6 Rf5+ Qee3 Qf7 Qf2 Qc7 Rg1 h1N f7 Nh2 f8B Ng3 Be7 Nh5 Bd8 Bd3 Rf1 Ba6 Qg1 Bd3 Rf3 Bf1 Nac6 Ra6 N6a7 Na8 Qf4 Rb6 Rd3 Rb3 Qfe3 Rc3 Qf4 Be1 Qff2 Bd2+
1BB5/1r1N2kr/P6p/Q1Q2n2/PqN3P1/1R2Np2/nrK1Nb2/rQ2bb2 w - - 0 1 illegal: No possible last move
3R1q2/R3nPb1/Bp1p1rP1/2n4k/1Q1bN1N1/b1NrRb1P/7n/Q2N2K1 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 f6 h6 g4 Nc6 g5 Ra4 f5 Ra8 fxg7 Nb8 g6 Ra4 Bf4 Ra8 Bg5 hxg5 Kf2 e5 c4 b6 a4 e4 h3 b3 f6 g4 a5 b2 c6 Bb7 c7 Na6 c8N Ba3 c5 Ne7 g8N Kf8 c6 Nc5 Ne2 g3+ Kg1 g2 a6 e3 c7 Bf3 Nec3 e2 a7 e1B Nh6 Bd2 Ng4 Bh6 Qd5 Bg7 Qd4 Kg8 Be2 Qf8 Nd6 Rd8 c8R Rh5 a8Q Rf5 f7+ Kh8 Nd5 Rf6 Nbc3 b1N Nde3 Nd2 Qb4 Nf1 Nde4 Nh2 Bd3 d6 Rb8 Rc8 Ba6 Rc6 Rd8 Rc7 Kf2 Rc8 Ned1 g1B+ Kg3 Be3 Re1 Bd4 Re3 Rc7 Kf2 Ra7 Bc8 Ra4 Ba6 Ra5 Qc4 Rb5 Kg1 Rb3 Ne2 Rd3 N2c3 Bh6 Qb4 Kg7 Ngf2 Bg5 Ra2 Kh6 Ng4+ Kh5 Bc8 Bc1 Ra7 Ba3 Ba6 Bh4 Qc6 Bg5 Qca4 Bh6 Qaa5 Bg7 Qaa4 Bb2 Qa1 Ba3
8/P1pr1Q1K/b2B1R2/PQb3r1/N2N4/bpPR4/2QnQrNr/4nqk1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 g5 bxa5 e5 d4 Ne7 dxe5 Ng8 Bh3 Nf6 fxg5 Rh7 g6 Rh8 g5 Ng8 Bg4 hxg4 Kd2 Ke7 Ke3 Ke6 Kf4 b5 h4 f5 a4 d5 e4 d4 h5 b4 g7 g3 a6 g2 h6 b3 a7 d3 g6 d2 a5 Bc5 h7 Bf8 Nh3 g1B Nc3 Bgc5 Ba3 Bf2 Rf1 Ba6 Na4 Qe8 Kg5 f4 c3 f3 Bd6 Bc4 Qc2 Nc6 Rad1 Nf6 g8N Nb4 g7 Qb5 Kh6 Nd3 Ne7 Bc5 Nf5 f2 Kg6 Rg8 h8Q Ne1 Qh5 Rd8 Nf4+ Kd7 e6+ Kc6 e7 Rd7 e5 Ne4 Ng2 Kd5 e8Q Be7 Rb1 d1R e6 Nd2 Qh2 Bd3 Rc1 Ke4 Kh7 Kf3 Ra1 Bf8 e7 Qc4 Qb8 Qf7 e8Q Ba6 Qb5 Be7 Rg1 f1R Nd4+ Kf2 Rh1 Rb1 Rg1 Rb2 Rd1 Qc4 Rh1 Rg1 Qeh5 Qf1 Q5e5 Rf8 g8Q Rb1 Qee6 Rf4 Qgf7 Ba3 Be5 Bec5 Bd6 Rf5 Qhe5 Rb2 Rh6 Rh1 Qh2 Ra2 Rf6 Rb2 Qh6 Kg1 Qee2 Rg5 Qh4 Nb1 Rd3 Nd2 Qhh5 Bcb4 Qed1 Bc5 Qcb1 Ne4 Qg4 Rf2 Qc2 Nd2 Qe2 Ne4 Qh4 Nd2 Qh2+ Rxh2+
b3KN1k/p2Qn3/B7/2Q1R2P/3rPb1r/1Q1PB2n/1b2Q1p1/1n2qBNn w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 h5 b4 Nh6 g5 Be6 Ra3 Bc8 Rg3 Ng8 Rg4 hxg4 Qa4 g6 Qa1 Ba6 Qg7 Bb7 Qxg6 Ba6 Qg7 Bc8 e4 f5 Bh3 c5 Ke2 c4 g6 f3+ Ke3 c3 Kf4 f2 Ke5 f1N d3 g3 d6 f4 b6 f3 b5 c2 b7 f2 b6 Bd7 Nd2 Bg4 Nc4 Be7 Be3 Na6 b8Q c1B b7 Be6 Qc8 Bd5 b8Q Bg5 Qc5 Nd2 Qb3 f1N Nb6 Nb1 Nd7 Nc7 Nf8 Ne6 Qh7 Bh6 g7 Kf7 d7 Ng5 Kd6 Qa5 d8Q Bb2 Kd7 Ne7 g8B+ Kf6 Ke8 Qe1 Qf5+ Kg7 Qf2 Rb8 Qd2 Ba8 Bc4 Rb4 Ba6 Rd4 Qe2 Rh7 Bg2 Kh8 h4 Bc1 Nf3 Bb2 Rg1 Nh3 Qd7 Nh2 Rf1 Ng4 Ng1 Bg5 Rf5 Bf4 Rh5 Ngf2 Bf1 g2 Rd5 Nh1 Re5 Rg7 h5 Rg4 Qbb4 Rh4 Qb8 N3f2 Qb3 Nh3
1bqR4/r1NNp1q1/2kBN1Qn/1N5B/1Pb1np1Q/3r4/1PKP1qq1/5B2 w - - 0 1 illegal: No proof kernel forced: bxDB
2rQ4/1b3NQq/3Nq3/npRpP2n/1K2Nk2/3B2R1/N3PP1R/1nb1qb2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 g4 h5 gxh5 f6 b4 a6 Bg5 fxg5 c3 Ra7 c4 Rb7 c5 Rb6 cxb6 a5 Qd2 axb4 Qc1 Bd6 Qd1 Bf8 Kd2 Kf7 a4 Ke6 h4 Kf5 h6 c5 h5 d5 b7 g4 h7 g5 h6 g3 a5 b3 Kc3 g4 a6 g2 a7 b2 a8Q c4 Ra6 g3 Qd4 Qh4 Ra1 Ba3 Qaa7 Nc6 b8R Na5 Qg7 Bb7 Rc8 Nf6 Nh3 g1N Ng5 g2 Rc5 Rc8 h8N Nf3 h7 g1Q Bg2 Nd2 Nhf7 Qe1 h8N Qh7 Be4+ Kf4 Rh2 Nh5 Nd6 Qg6 Rg2 Qe6 Rg3 Qh1 Nhf7 Qh2 Kc2 c3 Kd3 c2 Kc3 Qh1 Bd3+ Qe4 Qa4 c1Q+ Qc2 Qh7 Nge4 Qe1 Qa4 Nab3 Qa8 Na5 Qb8 Rc7 Qd8 Rc6 Kc2 Rc8 Nbc3 Nb1 Na2 Bb4 Qdf8 Bd2 Qe8 Bc1 Qd8 Nd2 Kc3 b1B Bc4 Bd3 Kb4 Bc2 Rb1 Bd3 Rb3 Nb1+ Rc3 Bc2 Rh3 Bd3 Rh2 Bc2 Neg5 Bg6 Nge4 Bf5 Bd3 Bh3 Bc4 Qd1 Rg3 Bf1 Bd3 Qe1+
3B1Qq1/2Nq1rrn/1QpQ1N2/2R1B3/r4BPQ/n2p2n1/kq1PP2K/5b2 w - - 0 1 legal: proof: b4 g5 c4 b5 cxb5 h5 f4 e5 a4 h4 a5 h3 fxe5 Be7 g3 Bd6 Bg2 hxg2 Ra3 Be7 Rf3 Bc5 Rf4 Bb6 axb6 gxf4 Kf2 Ke7 h4 Ke6 h5 Kd5 e6 Kc4 h6 d5 e7 a5 e8Q f5 b7 d4 h7 c6 b6 d3 b5 f3 Bb2 f4 Be5 a4 Nc3 a3 Nd5 a2 Qf8 a1Q Nh3 Qb2 Kg1 f2+ Kh2 f1R Qe1 Kb3 Nf6 f3 Nf4 f2 Ne6 Ra4 Nc7 Na6 b8Q Ka2 b7 Bh3 b6 Nb4 g4 Nc2 Qa7 Na3 b8B Qd7 b7 Qd8 Nh5 Nf6 Qb6 Rg8 h8B Nh7 Bhf6 Rg7 Be7 Qd5 Nf6 Qg8 Bd8 g1N Nh5 Qe6 Bg3 Qg8 Qa6 Qb6 Na8 Bg2 Bbe5 Nh3 b8Q Qb2 Qab6 N3g5 Q8c7 Ne4 Qce7 Rg1 Nc7 f1Q Qd6 Qff7 Qef2 Ra1 Rc1 Qd7 Rc5 Rf1 Qe1 Rf6 Bgf4 Rff7 Qh4 Ng3 Nf6 Bf1
R2QQb2/Q2N1K1p/1Bn3Q1/2Bb1PBr/1pqb4/n4P1P/2R1n1q1/qk6 w - - 0 1 illegal: No possible last move, all moves rejected
RN1K1Q2/q3npr1/qk1b1R2/5N2/P2P2b1/1q2Q2B/R1Pp2n1/bN3R1n w - - 0 1 legal: proof: f4 b5 b4 d5 g4 c5 d3 h5 gxh5 a5 Bb2 c4 Ba3 axb4 Bc1 e5 e4 c3 exd5 e4 Bd2 cxd2+ Ke2 Ra6 Ke3 Re6 Ke2 Re5 fxe5 Qc7 Qe1 Qd6 Qd1 Qd8 Ke3 Kd7 Kf4 Kc7 a4 b3 h4 b2 h6 b4 h5 e3 e6 g5+ Kf5 b3 h7 g4 h6 g3 d6+ Kb6 d7 e2 e7 e1N e8R g2 Ne2 g1B Re6+ Nc6 Rf6 Qc7 Nd4 Ng2 Qe2 Bd6 Qe3 Qa7 Ra2 Ne5 Kg5 Qa6 d8N Ng4 N8c6 Nf2 Nb8 Bh2 Rg1 Be5 Nf5+ Bd4 Rh1 Ne7 Rg1 Rd8 h8Q Nh1 h7 Rg8+ Qg7 Bd7 h8R Be6 Qh3 Bc3 d4 Bd7 Qe3 Bc8 Nh6 Bg4 Nf5 Qa7 Rfh6 Qa6 Kf6 Qa7 Qf8 Rg7 Bc4 Qa6 Rf1 Qa7 Be6 Qa6 Na3 b1Q Bc8 Qe1 Nb1 b2 Qe2 Qf2 Na3 b1Q Qe3 Qa7 Qd8+ Bc7 Na6 Qb4 Nb1 Qe2 Nd6 Bf3 Bh3 Qbb5 Nf5 Ng6 Qde7 Bd6 Ra8 Qb4 Nb8 Qea6 Qe8 Ba1 Qf8 N6h4 Rg6 Bg4 Rh6 Qb3 Rg6 Bc7 Ke7+ Bd6+ Ke8 Qd5 Re6 Qb3 Kd8 Ng6 Rf6 Ne7
1k1n1KbR/1NnPPNBq/6q1/2PN2R1/qQ1p3R/4r1p1/nbNQ4/5b2 w - - 0 1 legal: proof: e4 b5 g4 d5 d4 dxe4 a4 h5 gxh5 c6 axb5 Bg4 d5 Bc8 f4 e5 d6 a5 Qd3 e3 Qd1 e4 Bc4 Ra7 Bb3 Re7 Bd5 Re5 fxe5 cxd5 Ke2 Kd7 h4 g5 c4 f5 b4 d4 e6+ Ke8 e7 Kd7 b6 f4 c5 a4 b5 g4 b7 a3 b6 a2 h6 Qc7 h7 Bh6 h5 Nc6 b8Q Nf6 b7 Qb6 Nf3 Nd5 Nc3 Nd8 Qd2 Nc7 Ne1 g3 Rh4 Rf8 h8N Qc6 Rb1 a1Q Nf7 Qaa4 Nd5 Bg5 h6 f3+ Kf1 f2 Kg2 e2 Kh3 f1B+ Kg4 e3 Kh5 Qca6 Nc2 e1Q Kg6 e2 Kg7 Qf2 h7 e1N h8R Qh2 Rb4 Nd3 Rb6 Nb4 Rc6 Qd3 Ra6 Na2 Ra8 Kc6 d7 Qh1 R8h5 Be3 Rg5 Qde4 Nh6 Rf3 Nf7 Qg6+ Kf8 Bc4 Qa7 Bf4 Qaa5 Re3 b8N+ Kb7 Nc6 Qhe4 Qac3 Qh7 Qa3 Qeg6 Rb8+ Ka6 Na5 Ka7 Qb2 B8a6 Qbb4 Bf1 Rc8 Bac4 Nb7 Nb5 Rc6 Nc7 Ra6+ Kb8 Rd6 Qgh5 Rh6 Q7g6 Rh8 Qhh7 Qbc3 Bb3 Qb4 Qa8 Qdc3 Bb5 Nh6 Rf3 Rgg4 Rf2 Nf6 Bg8 Nd5 Rf3 Nf7 Bf1 Qe1 Qa4 Qd1 Be5 Bh6 Bf4 Rg5 Bc1 Qdd2 Bb2 Bg7 Re3
2Bn1K2/Q2Nn3/rBBP3N/r3N1Rr/r3Q1p1/P1bP4/pk1rq3/1N2n3 w - - 0 1 illegal: No proof kernel
QK1Qq1Nn/1Nb2Qp1/4B1bn/1r2P3/3BR3/2n1PpPQ/1B1nn3/1k5b w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 h5 g3 b5 axb5 h4 Qc2 h3 Qe4 Ke7 Qf3 Ke8 Qg2 hxg2 e4 a5 b4 Bg4 d4 Bf5 d6 Bc8 d5 Ra6 Ra2 Rc6 Rd2 Rc3 Rd4 Re3+ fxe3 exd4 Ke2 Kd7 Kf3 c5 Kf4 f5 Ke5 f4 h4 a4 h5 c4 h6 c3 h7 c2 b6 d3 b5 f3 b7 d2 b6 d1B Bb2 c1N Nh3 g1N Nc3 a3 Bc4 a2 Nf4 a1N Nd3 Na2 Rh4 Na6 b8B Ne2 b7 N6b4 Ba7 Nh6 b8Q Bc2 Bd4 Nb3 Qa8 Nd2 Rf4 Rg8 h8Q Be7 Qh7 Qe8 Qg6 Rh8 Qf7 Bb1 Na4 Nac3 Nf2 Nba2 Ng4 Nb5 Bb3 Nac3 Ba2 Nf5 Bc4 Rh5 Nh6 Ba6 Ng8 Nh6+ Rf5 Nf4 Ba2 Nce2 Rg5 Nbc3 Bc4 Bc8 Nc5+ Kd8 d7 Kc7 d6+ Kb6 Bd5 Kb5 d8Q Kb4 Qd7 Bd8+ Be6 Bc7 Rf5 Ba6 Nb7 Bc4 Qdc8 Kb3 Qcd7 Kc2 Qdc8 Bb6 d7 Ng6+ Kd6 Nh8 Rf4 Rb5 e5 Bc7+ Kc6 Bd3 Rh4 Bf5 Rf4 Bh3 Re4 Bd8 Kd6 Bg2 Kc6 Ba5 Kd6 Bh1 d8Q Rb6+ Kc7 Rb5+ Kb8 Bb6 Ba1 Kc1 Qcd7 Bc2 Bb2+ Kb1 Qh5 Ba5 Qdf7 Bb6 Qh3 Ba5 Rg4 Bg6 Re4 Bc7+
1Q1Q2QK/3pN3/P1n2kbR/1Pp2n1P/1bNRQ2n/3r4/1R1q1Bn1/3n2b1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 c5 g4 a4 Bd3 b6 Bc2 Ra6 gxh5 Ra8 Bb3 axb3 d3 Ra6 d4 b5 d5 Rc6 dxc6 bxc4 Ke2 Kf7 Kf3 g5 Ke4 e5 f4 c3 h4 c2 a4 g4 f6 b2 Kf5 e4 b5 e3 a5 e2 a6 e1N c7 g3 h6 g2 h7 Nf3 h5 Ng5 Nc3 b1N Qg4 Ne6 Nf3 g1B Ra2 Be7 Rh4 Nc6 Rb2 Qf8 Be3 c1N Bf2 Nd3 Nd2 Qh6 Nc4 Ne1 Nd5 Bd8 Ne7 Bb7 c8Q Nf8 Qb8 Ng6 Qf3 Ng2 Qe4 Nc3 Rg4 Kf8 f7 Kg7 f8R Nd1 Rf6 Ba5 Rd6 Nf6 Rd4 Re8 h8Q+ Kf7 Rd6 Bb4 Re6 Rc8 Qd8 Ng8 Rh4 Qg7 Kg5 Nh6 f5 Qd4 f6 Nf5 Rg4 Qd2+ Rf4 Ng7 Kh6 N6h4 Kh7 Ngf5 Kh8 Ba8 Rg4 Rc7 Rd6 Rb7 Rg6 Rb6 Rh6 Bb7 Rd4 Ba8 Qb1 Bb7 Rh7+ Ke6 f7 Kf6 Qg8 Na7 Qd3 Rd6 Qe4 Bd5 f8Q+ Bf7 Qfe8 Nc6 Rh6+ Bg6 Qed8 Re6 Qc2 Re3 Qe4 Rd3
5kNn/pQ6/2Q1PPnP/2nR1pB1/r1b2q1Q/n4r2/2KBn1B1/rB3R2 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c6 d4 Be7 Nc3 Bg5 Nd5 Bf6 g5 c5 gxf6 cxd4 Ne3 Kf8 Ng4 hxg4 Bh3 Kf7 Bf1 Ke8 Kd2 g5 e4 d5 c4 g3 h4 g4 b4 g2 h5 d3 b6 d4 c5 g3 c6 Qe7 c7 Qd6 e6 Ne7 e5 Bd7 c8B Qc6 b7 Qc7 b5 Kf8 b6 Na6 b8Q Nc5 b7 Bb5 Nf3 g1N Qa4 g2 Nh2 Ng6 Ng4 Bc4 Nh6 Nh3 Ng8 g1N Bg2 Ne2 Rf1 Ng5 h6 Nf7 Kd1 d2 Kc2 d1N Bg5 Ndc3 Rad1 Nb5 Rd2 Rh7 Be4 Nfh8 e7+ Ke8 Rdd1 Rg7 Bd7+ Kf7 Bdc6 Qd6 Qc7 Rc8 b8B Re8 Qb7 d3+ Kb2 d2 Bb1 Qd4+ Kc2 Qf4 Bg2 Rd8 Bc7 Rd3 Ba5 Rf3 Bc3 Bd5 Qd4 Bc4 Qf2 Ke8 Qh4 Kf7 Rde1 d1R Bd2 Ng3 Re4 Ne2 Rd4 Re1 Ba2 Ra1 Rd5 Ke6 e8Q+ Re7 Qeb8 Kf7 Q8c7 Kf8 Bb1 Re6 Qd7 Rea6 e6 R6a4 Qdc6 Na3+
1b2R3/2b1N1Nk/b5N1/2QpB1q1/bKBP1n1P/2Pp1BnQ/1qb2r2/1B6 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 b5 f4 e5 a4 exf4 axb5 a4 Ra3 c4 Rd3 Ra5 bxa5 cxd3 Kd2 f5 Kc3 Kf7 e4 g5 h4 Kg7 e5 g4 a6 g3 b6 a3 h6+ Kh7 b7 f3 a7 g2 a8B a2 e6 f2 e7 a1Q+ Kb4 f4 Be2 f1B Nf3 g1B Nc3 Bg2 Qf1 Bh2 Bd1 Nf6 Nd5 Ne4 c3 Ng3 Bc2 d6 e8B Qg5 Be3 Nd7 b8Q Nc5 Qb5 Ne6 Qc5 Ba6 Bf7 Rg8 Bb1 Qb2+ Ka5 Bg7 Ne7 Rf8 Rg1 Bh1 Qh3 Be5 Re1 Bg2 Bd5 Bh1 Bc4 d5 Bh5 Bb8 Bf2 Bg2 Re3 Bf1 Be1 Be2 Re5 Bd1 Re2 Kh8 h7 Ba4 Re4 Kg7 h8N Kh7 Nhg6 Rf6 Ng1 f3 Ne2 f2 Nef4 f1B Bf3 Bg2 Nh5 Nf4 Ng7 Bf1 Re3 Be2 Re6 Bed1 Re5 Nh1 Bg3 Bdc2 Re4 Nh5 Be5 N1g3 Bh1 Rf2 Bf3 Nf4 Re3 Qc1 Kb4 Qb2+ Bb3 Nge2 Bc7 Nc1 Ng8 Nce2 Re8 Ng2 N8e7 Bg3 Be5 Bf4 Bf6 Bfc7 Be5 Ng3 Nh5 Qbc1 Ng7 Nf4 Bc4 Qb2+
1R2Q1q1/R1q1r3/Q4pq1/QK2BN2/1n1R2PP/N1PQ3p/kb6/q1rn3q w - - 0 1 illegal: No proof kernel
1b2qRRq/8/2BPnR2/k3BpQ1/3q4/qb3rPB/2Pqpn1N/RQ2K3 w - - 0 1 legal: proof: b4 b5 f4 d5 e4 e5 exd5 g5 h4 gxh4 a4 a5 Na3 e4 axb5 c6 b6 Ra7 Nb5 Re7 Na7 Re5 fxe5 c5 b5 Bg4 Nc6 Bc8 Nb4 cxb4 d4 Kd7 g3 h5 d6 h3 d5 b3 b7 h4 b6 h2 Bf4 b2 Qd4 b1Q+ Qd1 e3 Ne2 a4 Ra3 h3 Rg1 h1Q Bg5 h2 Qc1 Na6 b8Q Qe8 b7 Nh6 Be7 Qf3 Bg2 h1Q Nc3 e2 Ra1 a3 Ne4 a2 Rf1 Qa3 Nd2 Ng4 Bh3 Nc5 Bf6 Ne6 Nf3 Nf2 Nh2 Qbb4+ Qd2 Qd4 Qg5 Rh6 Bh8 Rf6 Bg7 Kd8 d7 Bd6 Bh8 Qhe4 Bg7 Qf4 Bh8 Ke7 d8R Bd7 Rc8 Ba4 Bg7 Bc7 d6+ Kd7 Bh8 Kc6 Rd8 Ng7 e6 Kb6 e7 Ne6 Bg7 Rf5 Be5 Ka5 Rc8 Bb3 Rd8 Qea4 Rf8 Qe8 Rg8 Qfe3 Rf8 Rf3 Rg8 Qd8 e8B f6 Bc6 Qe8 Qc8 Qed3 b8R Q3e3 Qb7 Qef4 Rc1 a1Q Rc8 Q1b2 Ra1 Bb8 Rd8 Qh4 Rc8 Qh8 Rd8 Qf4 Rf8 Qbd4 Rg8 Ba4 Qb1 Bb3 Rc8 Qd7 Rcf8 Qe8 Rf7 Qfe3 Rff8 Rf4 Rg6 Nh1 Rf3 Nf2 Rgg8 Rf5 Rf4 Qed3 Rh4 Rf3 Rh6 f5 Rhf6 Qd2+
rQ4bR/1rnP4/5pkB/K1B1R1N1/2rpqP2/4BQ1B/1r3nP1/4Qq1r w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 e6 cxd5 e5 d4 exd4 f4 g5 h4 g4 Nd2 Be7 Ndf3 Bg5 hxg5 gxf3 Kd2 h5 b4 a5 e4 c5 b6 f2 e5 h4 d6 h3 b7 c4 d7+ Kf8 b5 Kg7 e6 c3+ Kc2 h2 Kb3 f6 Ka4 c2 g6 Ra6 b6 Rh4 e7 Rh8 e8Q Ra8 Nh3 Nh6 Be3 c1R Bc4 f1Q Qf3 Qe7 Be6 Ng4 Ng5 Na6 b8B Bb7 Ba7 Nf2 Bh3 Bd5 b7 Qe4 b8B Bg8 Bd6 Rc4+ Kb5 a4 Bac5 a3 Ka5 a2 Re1 Kh6 g7 Ra7 Qb8 Kg6 Bf8 Rh5 Qb4 Rb7 Re2 Rh8 Qe1 a1R+ Ra2 Rab1 Rb2 Bf7 Re2 Rh7 g8Q+ Rg7 Bcd6 R1b2 Bc5 Be6 Qh8 Rg8 Bh6 Ra8 Qb8 Bf7 Bd2 Qd5 Re8 Qe4 Rh8 Bg8 Be3 Qe2 Rg1 h1R Rf1 Ng4 Rf2 Qf1 Re2 Nf2 Bd2 Qf5 Re5 Qe4 Be3 Nc7+
1r2Bq2/k4b2/4r1qQ/rq1N3K/1NnP1B2/pQ4PP/2p1R1qn/2N2Q1N w - - 0 1 illegal: No possible last move, all moves rejected
2r1kNQ1/n1r5/bN2prPn/1p2Pn1B/Bn1q4/NPN2Q2/1q2B3/2RK4 w - - 0 1 legal: proof: h4 a5 g4 d5 f4 g5 hxg5 a4 c4 a3 cxd5 e6 f5 Nc6 b3 Ke7 g6 Nb8 f6+ Ke8 g5 Bh6 Nc3 Bg7 Bb2 axb2 fxg7 b1Q a4 Qxa1 d4 h5 e4 c5 d6 f5 d5 h4 a5 h3 d7+ Ke7 a6 b6 e5 h2 a7 c4 Nf3 f4 Nd4 f3 Ndb5 Qa6 Na3 Rh5 Be2 Nh6 g8B Kf8 d6 Nc6 Bf7 f2+ Kd2 f1R Be8 Rb8 a8N Na7 Rg1 h1N g7+ Kg8 Kc1 Rf6 Qd3 Rh4 Kd1 Ng3 Qf3 Ngf5 Rh1 Qa4 Re1 Qc7 d8N Ba6 d7 Rc8 Nb7 Qc5 d8Q Qf2 Bd7+ Kf7 Nc5 Qb4 Ba4 b5 Nd7 Qd6+ Qd3 Qdd4 Qg8+ Ke7 Nf8 Ke8 Nb6 Rf4 Bf3 Qb2 Be2 Rg4 Qh8 Rf4 g8B Rf7 Bh7 Rfc7 Qg8 Rf2 Ncb1 c3 Bg6+ Ke7 Bgh5 c2+ Kd2 c1N+ Kd1 Rf1 g6 Ke8 Nc3 Rf4 Rg1 Na2 Rf1 Nb4 Rg1 Qc4 Qf3 Qd4+ Ke1 Ng3 Rf1 Rf6 Rg1 Qc4 Rh1 Ngf5 Rg1 Nc2+ Kd2 Qe4 Rc1 Nb4+ Kd1 Qd4+
6KN/2q1P3/1b2q1pP/2Qp2r1/k1rP3n/1N1Rq1n1/BQNrB1q1/N4Q2 w - - 0 1 legal: proof: c4 e5 f4 b5 fxe5 d6 a4 Ke7 axb5 Ke8 b4 Nh6 b6 Bf5 b5 Ng8 b7 Bd7 b6 Bb5 cxb5 g5 Ba3 Na6 Bc5 Nb8 Be3 Qe7 Bf4 gxf4 Ra6 Qg5 Ra1 Qd8 g4 Qf6 g5 Bh6 g6 Bf8 g7 Qe7 Ra3 Qh4+ Rg3 Qd8 Rg6 hxg6 Kf2 Kd7 Kf3 a5 Kg4 c5 h4 a4 d4 a3 e4 a2 h5 a1R e6+ Ke8 h6 c4 e7 Kd7 Kg5 f5 e5 f3 Na3 f2 Nf3 c3 Nc2 f4 Nfe1 f3 Be2 f1Q Rh3 f2 Rd3 R1a5 Na1 Na6 b8Q c2 b7 Nc5 b6 Kc6 e6 Kb5 Qa7 Qc7 b8Q Qh3 e8N f1Q b7 Ne7 g8B Qfg2+ Kf6 c1Q Kf7 Qce3 Nec2 Ka4 Qf1 Ne4 Qb6 Rg5 Qc5 Nf5+ e7 Nh4 Bh7 Bg7 Bg8 Be5 Kf8 Rh7 Ba2 d5 Kg8 Ng3 Nd6 Qe6+ Nf7 Ra6 Rd1 Rc6 Rd3 Qf5 Nh8 Rf7 Qd8 Bf4 b8N Qfe6 Na6 Bd6 Qb8 Rf2+ Kg7 Bf4 Qb2 Bd6 Bh5 Rd2 Be2 Qg4 Kg8 Bf4 Qd6 Rc4 Qc5 Be5 Nb8 Bf4 Nc6 Bd6 Na5 Qge6+ Kh7 Bf4 N5b3 Bd6 Qb6 Bb4 Qc5 Ba5 Kg7 Bb6 Kh7 Qg4 Kg8 Qge6+
1Q2r1rq/3BP2k/ppNq1nbB/8/nK5R/5r1q/2PPN1N1/2rQNB2 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bh3 b6 Na6 b7 Be6 b8N Bc8 h4 gxh4 f4 e5 b4 e4 b5 Nb4 b6 Be7 b7 Bf6 Ra6 Be5 Rb6 cxb6 fxe5 Na6 g4 Kf8 e6 Kg7 g5 h5 g6 f5 e7 e3 d6 f4 d7 f3 Nh3 e2 Ng1 h3 Nc6 h2 b8Q h4 Nc3 h3 Ba3 Nf6 Bc5 Rg8 Be3 Nc5 Bh6+ Kh8 g7+ Kh7 Kf2 e1R Nce2 a6 Ke3 f2 Kd4 Na4 Kc4 Qc7 d8N Qd6 Kb3 Bf5 Nf3 Bg6 Ne6 Re8 N6f4 Rg8 Rg1 h1Q Rg4 h2 Rh4 Qg2 Kc4 Qh3 Ng2 h1Q Kb3 Re8 g8B+ Kh8 Qa1 Rc1 Be6 Kh7 Bd7 Q1h2 Kc4 Qhe5 Nfe1 Rg8 Qa7 Rae8 Qb8 Ne4 Qc3 Qh8 Qf3 Nf6 Ng3 Qc7 Qd1 Qe5 Kb4 Qd4+ Bc4 f1R Ne2 Qd5 Nef4 Rf3 Bf1 Qde6 Ne2 Qd6+
B4r1K/Q2P4/1P1k4/4Rbbp/2R1Qq2/qpbn3P/B1Qr3r/1B1NBb2 w - - 0 1 legal: proof: e4 d5 f4 b5 a4 g5 b3 e5 Nc3 c5 exd5 e4 Nce2 Nc6 axb5 Ne5 b4 cxb4 fxe5 Be6 Nf4 gxf4 Ne2 Bh3 Ng1 Bc8 Ke2 Ke7 d4 a5 g4 f5 c4 h5 c5 a4 c6 a3 e6 a2 h3 e3 Kd3 f3 d6+ Ke8 c7 f2 b6 e2 g5 e1R e7 Kd7 d5 f4 Kd4 f3 g6 Re5 g7 Re3 Bd2 Qe8 Bg2 f1B Ne2 f2 Be1 Rg3 Ke5 Ba6 Rc1 a1B+ Nc3 Ra7 Qc2 Nf6 g8B Qa8 c8B+ Ke8 Bf5 Rd3 Rh2 Rd4 Nd1 Ne4 Rh1 Nc5 Kf6 Bh6 Kg6 Bg5 Kg7 Rh6 Bfh7 Kd7 Kh8 Rf6 Rg1 Kc8 e8Q+ Kb7 d7 Bad3 d8Q Bf5 Qd6 Nd3 Qe4 Bc3 Qde7+ Kc8 d6 Rf8 Bg6 Ra2 Qa7 Kd8 d7 Rb2 Qg4 Ke7 Qe4+ Kd6 Bh1 Ra2 Rg3 Rb2 Re3 Ra2 Qeb7 Rb2 Re5 Ra2 Bd5 Rb2 Ba2 b3 Qe4 Rd5 Qb7 Qa3 Qa7 Be2 Bh7 f1Q Bg6 Qf4 Bh7 Rd4 Bg6 Rf6 Bd5 Bf1 Ba8 Rd5 Qb1 Rh2 Qb2 Bd4 Rc4 Bc3 Qc2 Rf8+ Kh7 Nb4 Qe3 Rb8 Qcd2 Bg4 Bgb1 Rf8 Qc2 Rdd2 Qee4 Nd3 Kg7 Be6 Kh7 Bf5+ Kg7 Rf6 Kh8 Rf8+
1k2K3/3pnR1B/4q1QP/2NB1qbP/3p2PB/1nrR1Bq1/2n5/3bQ1nQ w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 f3 e5 Ra3 a5 Bg5 b5 Bc1 g5 axb5 Ra6 Ra1 Rb6 Nd2 d3 Nb3 Rg6 Nd4 exd4 gxh5 g4 Qd2 g3 Qd1 Rg4 fxg4 Bg7 Bg2 Bh6 Bf1 Bf8 Kd2 f5 h4 g2 e4 a4 c4 f4 b4 a3 c5 a2 h6 f3 c6 f2 e5 Qf6 c7 Bb7 c8B Kd8 e6 Kc7 h5 Ba6 e7 Qd6 e8B Nc6 b6+ Kb8 b5 Qc5 b7 Bd6 Nf3 g1N Be2 f1Q Ne5 Bc7 Qe1 Qc4 Bf3 Ka7 Rh3 Qd5 Bg6 Qf7 Bh7 Kb6 b8Q+ Bb7 Qa8 Ba6 Bb7 Nce7 Bbd5 Qe6 Qe8 Ka7 Qg6 Kb8 b6 Nc6 b7 Bb5 Ba3 Ba4 Be7 Bd1 Bh4 Nb4 Rc1 a1N Rc2 Ka7 b8Q+ Ka6 Qd8 Ne7 Qa8+ Kb6 Rc3 Rc8 Rh2 Bd8 Rf2 Qg2 Qc6+ Ka7 Ra3+ Kb8 Qc1 Nh3 Qh1 Ba4 Qce1 Nb3+ Kd1 Na1+ Bb3 d2 Ke2 Ned5 Be4 Rc6 Nd3 Qg1 Rf7 Bg5 Kf3 Rc1 Nc5 d1Q+ Qe2 Qc2 Qe1 Qb1 Bc4 Bd1+ Be2 Nf6 Bd5 Ng8 Rc3 Nb3 Re3 Qd6 Rc3 Rc2 Ke4 Qgg3 Kf5 Ng1 Bef3 Qc6 Re3 Rc3+ Re4 Qg2 Ke5 Qa6 Re3 Qae2 Kd6 Qf5 Rd3 Nc2 Qd2 Qe1 Qe2 Qgg3+ Qe5 Ka7 Kc7 Ne7 Kd8 Qee4 Ke8 Qee1 Qe2 Kb8 Qf2 Qe2 Qe1 Qee6
qn5q/N2p1bP1/2N1nR1Q/b1K2Qb1/1PBQ1p2/k3P3/3rnnRR/4Q3 w - - 0 1 legal: proof: h4 b5 f4 c5 a4 e5 fxe5 a5 axb5 g5 d4 cxd4 g4 Ra6 h5 Rc6 Bf4 gxf4 g5 Rg6 hxg6 Qe7 Na3 Qf6 Nb1 Qd8 e3 f3 Kd2 Nc6 Kd3 Ke7 Kc4 h5 e6 Kd6 b6 f5 b3 h4 c3 h3 b7 f2 b8R d3 e7 h2 e8Q a4 Ra2 d2 Na3 f4 Qe4 Bh6 Qe1 d1N Ne2 Bb7 Nd4 Nge7 Qf5 Nd5 Rd2 Qa5 Rf8 Qa8 Rc2 Nc7 Rf6+ Ne6 Rg1 h1Q Nab5+ Ke7 g7 a3 g8Q a2 g6 a1B g7 Nc7 Rd6 Nb8 Qgh7 Bg5 Rf6 Bd5+ Kb4 Qh3 c4 Bf7 c5 Ne6 Bc4 f1N Na7 Ng3 Qhg6 Rh4 Rh1 Rg4 Rhh2 Qh8 Qh6 Bc3+ Kb5 Ba5 Ra2 Kd8 b4 Kc7 Raf2 Ne4 Re2 Rg3 Rc2 Rf3 Rcg2 Rf2 c6 Rc2 Bb3 Rd2 Kc4 Kb6 c7 Nec3 c8Q Nf2 Qcc5+ Ka6 Ndc6 Ne2 Qd4 Bg8 Nc8 Bf7 Kd5 Kb5 Bc4+ Ka4 Na7 Ka3 Kd6 Nd8 Kc5 Ne6+
n1N1b3/1QP2B1r/KnQ1NB2/r1q1n3/2N1p3/3P2rk/2qNP1Rp/1n3B2 w - - 0 1 legal: proof: g4 g5 f4 b5 fxg5 b4 h4 e6 g6 b3 g7 Bd6 g5 Ba3 g6 Ke7 axb3 Bc5 b4 Ke8 b5 Bf8 c4 c5 b4 cxb4 Ra6 Be7 Rc6 Bg5 hxg5 Ba6 Rd6 Bc8 Rd4 d6 c5 d5 Rc4 dxc4 b6 Kd7 b7 a5 d3 f5 Kd2 h5 Ke3 c3 Kd4 c2 Kc4 h4 Kb5 b3 Qd2 a4 Qc3 b2 Qe5 f4 Rh3 a3 Rf3 a2 Bd2 a1R Qf6 c1Q Qe5 h3 Bb4 h2 Re3 f3 Qe4 e5 c6+ Ke6 c7 f2 Rf3 Nd7 b8N Nh6 g8B+ Nf7 g7 Qf8 g6 Qc2 Nh3 Nb6 Qb7 e4 Nf4+ Kf5 Be7 Kg4 Nc6 Rb8 Na5 Na8 Nd2 b1N Ne6 Ne5 Bf6 Qfc5+ Ka6 Rh7 Bf7 Bd7 g8Q Be8 Rf5 Kg3 g7 Kg4 Qc6 Rb5 Rg5+ Kh4 Rg2+ Kh3 Nf8 Nc3 Qh8 Nd5 g8N Ndb6 Ne6 Nf3 Bb2 Ra4 Ne7 Rb3 Nc8 Nd5 Bg7 Rab4 Nac4 Rb1 Ba1 R4b3 Qb2 Rb8 Qbb6 Rb7 Qa7 R7b5 Bf6 Ndb6 Qab7 Ne5 Rg5+ Kh4 Bh3 f1N Nb3 Nd2 Ne7 Rg1 Nc8 Nb1 Bf1 Rg2 Nbd2 Rg1 Rf5+ Kg4 Rf2 Rg3 Rg2 Kh3 Bg7 Na3 Bh8 Nb1 Bf6 Ra5+
qn2Kr1r/2P1p2R/2n1B2R/1BBp1P1b/3R3q/4BP2/N3q3/Q2nk1qQ w - - 0 1 illegal: No possible last move, all moves rejected
2QB2K1/P1Rn3n/q2nb1Pn/QN1B4/6pp/1bQ2N2/2PrB1k1/3B2bq w - - 0 1 legal: proof: b4 b5 g4 e5 a4 c5 bxc5 g5 h4 f5 Ra2 a6 Rb2 a5 Rb4 axb4 gxf5 g4 d4 exd4 Rh3 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Qa5 Ba3 Qc7 Bc1 Qd8 Kd2 Ke7 Kd3 h5 Ke4 d5+ Ke5 b3 e4 b2 f4 d3 a5 d4 c6 b4 c7 b3 a6 d2 g6 d3 f6+ Kd7 f5 Kc6 a7 Be6 c8B Nh6 f7 Bc5 f8Q Qb6 Kf6 Nf7 Kg7 Qa6 e5 Kd5 f6 Ke4 Nf3 Nd7 Be2 Bg1 Qe1 d1Q Qa5 d2 Na3 b1N Nb5 b2 Qc5 Nc3 Bb7+ Nd5 Qcc3 b1B Ba8 Qf1 Bd1 Ba2 Bb2 Rh7+ Kg8 Bb3 Ba3 Kf4 Be7 Kg3 Bd8 Kg2 Rh3 h4 Bb7 Bf5 e6 Rh5 e7 Be6 e8B Qe1 Be2 d1N Ba8 Nf2 Bd1 Ne4 Bb7 N5b6 Bd5 Nf8 Bd7 Ned6 B7c6 Nh8+ f7 Nbd7 Bc4 Rf5 Bce2 Rd5 Bb7 Rd2 Bd5 Nh7 Rg3+ Kf2 Rh3 Bf5 f8Q Nhf7 Rg3 Be6 Qe8 Nc5 Qc6 Nd7 Qc8 Qf1 Nfd4 Qg2 Rd3 Qh2 Nf3 Kg2 Rd4 Qh3 Rc4 Qh1 Rc7 Nh6+
2n4r/PR5B/1PK1QN2/B5R1/k1qq1q1P/p2p2Q1/3bRRnn/rn2B3 w - - 0 1 illegal: No proof kernel
3nr3/PNPK2Qp/3Rq1nq/3RQ1p1/1N1bqQ2/4RQ2/2Pnb1B1/k1n5 w - - 0 1 legal: proof: g4 b5 h4 g5 b4 a5 h5 f5 Bb2 Ra6 Bd4 axb4 gxf5 Rg6 hxg6 c5 d3 c4 dxc4 e5 c5 exd4 Kd2 Ke7 Kd3 Kf6 Ke4 d6 Kd5 d3 a4 d2 e4 b3 f4 b2 g7 b4 a5 b3 e5+ Ke7 a6 Nd7 Kc6 d5 a7 d4 e6 Kf6 e7 d3 e8Q Nh6 g8Q Ba6 Nc3 b1Q Nf3 b2 Ne1 Qe7 Bg2 Nf7 Qf3 d1Q Rh3 d2 Ra5 Bg7 Na2 Qde2 Nb4 d1N Ned3 Q2e6+ Kc7 Bb5 c6 Nd8 Nc5 Be2 Nb7 Nf2 Rd5 Nd3 Kc8 Qe4 c7 N7e5 Qb5 Qf8 Qa5 Ng6 Kd7 Qe1 Qa1 Qc5 Qe8 Nc1 Qe5+ Kf7 f6 b1N f5 Qf8 Qff4 Nd2 Re3 Rg8 Qab2 Bh8 Qf3 Qh6 Qef4 Re8 Qbe5 Kf8 f7 Bf6 Qd4 Kg7 f8R Be5 Qc5 Bb2 Rh8 Bd4 f6+ Kf7 Kc8 Ke6 f7 Qg3 f8Q Qgh3 Qg7 Qf5 Qh4 Qf7 Qc3 Qf6 Rd6+ Ke5 Kd7 Ne6 Rf8 Nd8 Qd3 Bb6 Qb5+ Bc5 Ra6 Kd4 Qhf4 Qe5 Qa5 Kc4 Rd6 Bd4 Rf5 Q5d5 Nd3 Qg8 Qb5+ Kc3 Nb4+ Kb2 Qd5 Ka1 Qe6 Ne7 Rfd5 Ng6 Qee5 Qe6+
2R1r1bQ/RR3Qr1/n3b3/2P1p3/Rn1pbQr1/2P2B1b/3PK2B/1Nk1b3 w - - 0 1 legal: proof: e4 c5 h4 f5 exf5 b5 a4 g5 c4 gxh4 Nc3 Qa5 Nd5 Qc3 bxc3 Kf7 axb5 Ke8 Nb4 cxb4 f4 Kf7 g4 Kf6 c5 a5 b6 d5 b7 e5 Ra3 h5 Qb3 h3 Kf2 a4 Ra2 d4 Bg2 h2 Bf3 a3 Ke2 Na6 b8R h4 Rb7 h3 Qd5 Be7 g5+ Kg7 f6+ Kg6 f7 Kf5 f8Q+ Nf6 g6 b3 g7 b2 g8Q b1B Qgg7 Be4 Qdf7 Rh7 Qgh8 Be6 Ra1 a2 Ba3 Rd8 Bb4 Rg7 Ba5 Re8 Bd8 Rg4 Ra7 Rg7 Rb1 a1R Rbb7 B4d5 Be4+ Kg4 Nf3 Rg1 f5 Kf4 Ne1 R1g4 Rg1 h1B Nc2 h2 Na3 Bg2 Ra1 h1B Nb1 Bh3 Bf3 Be4 Ra5 Nd5 Ra4 Bh4 Bg5+ Kg3 f6 Ndb4 Bh6 Bh7 Be3 Bg8 Bg1 Kf4 Bh2+ Kf5 Q7e7 Be1 f7 B1g2 Bc6 Bgd5 Qf6+ Ke4 Q8e7 Rg3 f8R R3g5 Qef7 Rg4 Kd1 Kd3 Qf4 Be4 Bd5 Re7 Rc8 Re8 Bc6 Kc4 Ke2 Kb3 Bd5+ Kb2 Bc6 Kc1 Bd5 B4f5 Bf3 Be4
3r2Q1/2PrNpR1/bk2BB2/1P2prrn/4r3/8/P2NBnQQ/b1Q2Kn1 w - - 0 1 illegal: No proof kernel
3r1B1N/1bpq1P2/2Br3P/5NRN/3b4/Q1PQbp2/Bb3Kb1/n4bBk w - - 0 1 illegal: No possible last move, all moves rejected
2K5/2QNRr2/n2Q1n1Q/PqrQ1r2/1bp1rp2/1P4RN/2kB1nPn/7N w - - 0 1 legal: proof: f4 b5 h4 e5 e3 exf4 b3 a5 Be2 g5 hxg5 d5 Bc4 a4 Ke2 b4 Ke1 Be6 bxa4 b3 a5 b2 Rh2 dxc4 Rh1 Bd7 Nc3 Ba4 Nb1 Bb3 cxb3 Ra7 Qf3 Ra6 Qd1 Ra8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 a4 Ke4 d4 c5 g6 h6 a6 c3 g7 c4 a7 f3 d5 f2 d6 f1N d7 f6 a5 c2 Nc3+ Ke5 e4 b1R Nce2 Qe8 d8Q Rh7 Rh3 Qc6 Bd2 c1R Ng3 Na6 Nh1 Bb4 Rg3 Qb5 Nh3 Rc8 a8N Rc5 Qc7+ Kd4 e5 h5+ Kf5 h4 Ke6 f5 Nb6 Nh2 Nd7 Nf6 g8Q Rf7 Kd6 Rc3 e6 Re3 e7 Kd3 e8Q f4 Qh5 Rd1 Qe6 Kc2 Qh6 Re4 Qgf8 Rde1 Qd5 Re5 Qe7 R1e4 Re1 Rf5 Qee5 Rf8 Ke7 Rf7+ Kd8 Qb6 Qed6 Qb5 Ng5 h3 Ree3 Nhg4 Kc8 h2 Nf2 h1N Ngh3 Rd4 Re7 Nh2 Rge3 Ng3 Rf3 Nge4 Nh1 Nf2 Rg3 Re4
NQ2B1n1/n1N1qP2/1prk1r2/3qN3/4PB2/2p1n2B/q1PrQK2/q1N3R1 w - - 0 1 legal: proof: e4 e5 a4 a5 b4 axb4 Ra3 f5 d4 f4 Re3 fxe3 dxe5 Bd6 Qd5 Be7 Qd1 Bf8 f4 Be7 h3 Bf6 g3 Bg5 f5 Bf4 gxf4 Qg5 Rh2 Qf6 Rh1 Qd8 Bg2 g5 Bf3 b6 Qd4 g4 Bg2 g3 Bf1 Ba6 Qd2 Be2 Qd1 Bg4 hxg4 Qe7 Nd2 Qf6 Nb1 Qd8 e6 Ke7 g5 h5 g6 d5 f6+ Kd6 f5 c5 f7 b3 f8Q+ Qe7 f6 g2 a5 c4 a6 b2 a7 e2 g7 c3 f7 d4 Bg5 d3 Bc1 h4 Nd2 b1Q Ndf3 d2+ Kf2 e1N Ne2 g1R Bg2 h3 Ned4 h2 Ne2 Rh6 Ne5 Qa2 Bh3 Rgg6 Rg1 h1Q Qc8 Nc6 Qb8+ Qc7 e7 Ng2 e8B Ne3 Qe1 d1Q Bd2 Qda1 Nc1 Qd5 Qe2 Qaa2 Qb7 Rd8 a8N Na7 Qb8 Nf1 Bf4 Ne3 Re1 Rf6 Rg1 Ne7 g8N Rhg6 Nh6 Ng8 Nhg4 Rh6 Qc8 Qe7 Qb7 Kc5 Qb8 Rc6 Nf6 Rd7 Nh7 Rhf6 Ng5 Rdd6 Qd8 Rd7 Ne6+ Kd6 Qc8 Rd8 Nec7 Rd7 Qb8 Rd8 Rg5 Qhd1 Rg1 Rd7 Nb3 Qda1 Nc1 Qdb3 Nf3+ Kc5 Bh6 Rd2 Bf4 Qd5 Ne5 Kd6
nk3B1B/n2PN2R/2p4B/n7/q2pK1nR/rPPrq2Q/2q1Q1Qr/3B4 w - - 0 1 legal: proof: d4 f5 g4 fxg4 a4 b5 axb5 h5 d5 Nf6 d6 Ng8 Nc3 h4 Ne4 Kf7 Ng3 hxg3 Ra5 Ke8 Ra3 Rh7 Ra1 Rh8 Bh6 c6 Bg5 e6 Bc1 Be7 Bf4 Bf6 Bc1 Bd4 Nh3 Bb6 Ng1 Bc7 dxc7 Rh5 Bh6 Rh3 Bc1 Rh8 b6 d5 e4 d4 Ra5 Ba6 Ra2 Bc4 Ra1 Bd5 exd5 Rh4 Bd2 Rh3 Bc1 Rh8 Ke2 Kd7 Kd3 Kc8 h4 a5 f4 g5 d6 g2 c3 e5 h5 g3 f5 e4+ Ke2 g4 f6 e3 Kd3 e2 h6 e1R h7 a4 f7 a3 f8Q a2 Nf3 g1Q Bh6 g2 Be2 g3 Bc1 Qh2 Qf7 g1Q Ke4 g2 Be3 Na6 Nh4 Ne7 Qd3 Rd1 Qg7 Ra7 Rc1 a1N Nf5 Nb3 Bh6 Na5 b3 Qg8 Bh5 Qc4 Qe2 Rd3 Re1 Qa4 b7+ Kd7 b8B Kc8 d7+ Kb7 Rf1 Nc8 Ne7 Ka8 Rf4 Qe3+ Kf5 g1N Rh4 Nh3 Qgg2 Nf2 Bf8 Nb6 c8Q Ng4 Qe8 Nc8 Bf4 Kb7 B4h6 Nc7 Qf7 Na8 Qe6 Qeh3 Ke4 Kb8 Qf5 Q3g3 Qff1 Ra6 Qh3 Qhf2 Qfg2 Na7 Qef1 Qc2 Qfe2 Rg8 h8B Rg5 Rb1 Rf5 Rh1 Rf2 Qgf1 Rh2 Qeg2 Ne5 Bd1 Ng4 Qfe2 Qe3+ Kf5 Qb2 B6g7 Nc4 Rh6 Qc2 Qh5 Qa3 Rh7 Rh3 Bh6 Qb4 Qh4 Ra3 Qh5 Na5 Qh4 Qf2+ Ke4 Qa4 Qhg3+ Nc7 Qge3 Na8 Rh2 Rg3 Rh4 Rh3 Q3f3 Rh2 Qfh3 Qe3+
5Nr1/Brk3P1/2bnq1p1/2R2N2/1n1n2R1/p2p1QP1/4Pb1b/KN1Q1QN1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 e5 fxe5 b5 axb5 d3 c3 Ne7 g3 Ng8 h4 g6 h5 Bh6 Bg2 Qh4 Be4 Bf8 h6 Qf6 Bf5 Qg7 hxg7 Nh6 Be6 Ng8 Bb3 Bd6 Ba4 Bf8 Bc2 dxc2 Kd2 Kd8 b4 d5 c4 f5 Kc3 h5 Kb2 a5 e6 f4 c5 f3 e7+ Kc7 e8Q h4 c6 f2 Bd2 c1B+ Ka2 f1Q Qe7+ Bd7 Qc5 h3 Qd4 a4 Qf6 a3 Be3 d4 Qf3 d3 Ba7 Nf6 Rh2 Nd5 b6+ Kc8 c7 Bc6 b5 Be3 Rh1 h2 b7+ Kd7 c8N Bf2 b6 B8c5 Ne7 Qh3 Qf1 Qe6 Nf5 Rg8 Qd1 Ba4 Qf1 Nc6 b8Q Nd4 b7 Bc6 Qbf4 Rgb8 Qd2 Kc7 Qdd1 Rg8 b8N Bb6 Nd7 Rab8 Nc3 Rb7 Rc1 Nb4+ Ka1 Bc5 Nb1 Bb6 Nh3 Bc5 Rc4 Bb6 Rg1 h1N Nf8 Bc5 Rg2 Bg1 Rh2 Nf2 Rc2 Bb6 Rc5 Ne4 Rh1 Bf2 Ng1 Nd6 Rh3 Nd5 Rh4 Nb4 Nh3 Bg1 Rg4 Bh2 Ng1 N4b5 Rcc4 Bf2 Rc5 Nd4
2B1b3/R1Qrb1P1/2B2Kp1/1b2p3/Nn1QQPQ1/8/k2pNrBP/n5rq w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 g5 b4 g4 bxa5 g3 f3 Bh6 Ba3 Bg7 Bc1 Bf8 a4 Bh6 Be3 Ra6 Bf2 Bg7 Kd2 gxf2 g4 Re6 g5 Rh6 g6 Bf8 g7 Rf6 Ra2 Ra6 Rb2 Ra7 Rb6 Ra8 Rg6 hxg6 Ke3 Kf7 Kf4 d5 Kg5 e5+ f6 Ke6 c4 b5 a6 d4 a7 d3 c6 b4 c7 b3 c5 Kd5 a5 Kc4 f4 b2 c6 Na6 Qg4 Kb3 Nc3 b1R Bg2 Nc5 a6 Bd7 c8Q f1B c7 Ne7 f7 Kb2 Qb8+ Nb3 c8B Ka1 Qb4 Nd5+ Qe7 Nb4 Kf6 Qc7 Qd8 Bc5 f8Q d2 Qde7 Rh3 Qfd8 Be8 Qf7 Rb8 a8Q Rf3 a7 Bfb5 Nge2 Rb7 Qd4 Rf2 Rc1 Kb2 Qe7 Na1 Na4+ Ka2 Qed8 Rb8 Qae4 Rb7 a8B Bf8 Qe7 Qc3 Qec5 Rd7 Qa7 Qa3 Rc7 Qc1 Bc6 Qh1 Qb8 Rc1 Ra7 Rg1 Qc7 Be7+
1n2QK1k/QpP3R1/5B1q/NnQNnP2/1P1r4/p5rp/8/N1NbB1br w - - 0 1 legal: proof: e4 c5 h4 g5 hxg5 f5 exf5 a6 d4 Kf7 dxc5 Ke8 a4 Ra7 Ra3 Nf6 Rb3 Ng8 Rb5 axb5 b4 Ra8 a5 Bg7 Bc4 Bh6 Bb3 Bf8 Ba4 bxa4 Kd2 Kf7 Ke3 Kg7 Kd4 e5+ Kd5 h5 c4 d6 g4 h4 f4 e4 a6 e3 g6 e2 f6+ Kh6 f7 Kg7 f5 e1R g5 h3 c6 a3 c5 Rh4 c7 Rhe4 a7 Nc6 Qc2 Qf6 Ne2 Bd7 c8N Qa1 Ne7 Rf4 Nd2 Rh4 Nb3 Nd4 c6 Be8 c7 Qb1 Qc5 Nc6 Ke6 d5 Rg1 d4 Na1 d3 Bd2 Qd1 Nd5 Rc8 a8Q Nh6 Qaa7 Kh8 Rg3 Bd6 f8B Rd4 Be7 Rh1 Be1 d2 Nc1 Ng4 Bd8 Bd7+ Kf7 Nb8 Rg1 Be5 Kf8 Bh2 Rg3 Ne5 g7+ Kh7 g8N Qh5 g6+ Kh8 Rg2 d1N Nge7 Nc3 Nc6 Bg1 Na5 Ba4 Rg4 Nb5 g7+ Kh7 Rg3 Bd1 g8Q+ Kh6 Qg5+ Kh7 Qe3 Kh8 Rg7 Qh6 Qe4 Ng4 Qe8 Ne5 Bf6 Rd8 Ne7 Rd3 Nd5 Rg3 Nf4 Rdd3 Nd5 Rd4
N2q4/3b3q/3QNPQr/1QR2Kr1/P1p1n1p1/3b2B1/r1Pp4/1nQRN1k1 w - - 0 1 illegal: No possible last move, all moves rejected
4KR2/1Ppr1QNn/1b1n1NPp/1qN4Q/7p/3R2r1/2QqPQrk/Bb6 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 e5 a4 exf4 axb5 g6 h4 Bg4 h5 Bb4 g3 Bc8 h6 Qf6 Bg2 Bf8 Bf3 Qg7 Bh5 gxh5 hxg7 Bd7 Nh3 Bg4 Ng1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 f5 b4 a5 d6 a4 b6 h6 b7 f3 d7 a3 Ke6 f4 Kf7 h4 d8Q f2 d5 f1Q d6 f3 b5 a2 b6 f2 d7 Ra6 Nc3 Ra8 Ne4 Qh3 Ke8 f1R Nf6+ Kf5 g4+ Ke5 g5 Rf3 Qc2 Na6 b8Q Nc5 b7 Rg3 Qa7 Qf5 Bb2+ Kf4 Rd1 a1Q Nf3 Qc1 Ba1 Rh7 Rhf1 Ne4 Qf2 Bc5 Rd3 Qd2 g6 Rg2 Qe7 Bb6 d8N Ra3 Qec5 Be6 Qb5 Ba2 Qd5 Bb1 Nd4+ Kg5 Nb3 Nd6+ Kf8 Qe5 Qa5 Qb5 Nc5 Ne7 g8Q Nd5 Qe6 Rd7 Qf7 Rc3 Nfe4+ Kg4 Nde6 Nf6 Ng7 Rd8+ Ke7 Nh7 Nf6+ Kg5 Rd4 Rf3 Rd3 Kf4 Qg1 Kg3 Qe3 Qbb4 Qf2+ Kh2 Qb5 Nc4 Qa5 Rd7+ Ke8 Rh3 Nb3 Rg3 Qh5 Qa5 Nc5 Qb5 Qff5 Rd4+ Q7d7 Ba7 Nfe4 Qdb4 Qff3 Bb6 Qe3 Qd2 Rf8 Qa6 Qf7 Rd7 Nf6 Qb5 Qf2 Nd6+
8/p1B5/Kn1P1Qr1/PP3R2/1qpb1RQR/q1pN1N1n/5q1b/R1r2N1k w - - 0 1 legal: proof: f4 e5 g4 h5 e4 hxg4 c4 d5 cxd5 f5 Bc4 b5 fxe5 bxc4 Qb3 f4 Qd1 Bf5 exf5 Qd6 Nh3 Qd7 Ng1 Qd8 Ke2 Kd7 h4 g5 b4 c5 d4 c3 Kd3 g3 Kc4 g4 Kb5 c4 a4 g2 e6+ Kd6 a5 g3 e7 f3 e8R f2 h5 f1Q h6 Rh7 f6 Bg7 f7 Qf2 f8R Nf6 Qg4 Qe7 Nd2 Nbd7 Ka6 Nb6 b5 Nh5 Rh4 Nf4 Rf5 Nh3 Ngf3 g1Q Ref8 g2 Nf1 Rd8 R8f7 Rg8 Bf4+ Be5 Rf8 Rg6 Bg3 Rh8 h7 Qh1 Rf4 g1B R8f5 Re8 h8Q Bh2 Qh6 Qhg2 Qh8 Qa2 Qf8 Qgf2 Qf7 Qa3 Qf6+ Kd7 d6 Rf8 d5 Bd4 Rhh5 Re8 Rh8 Qf8 Rh4 Re1 Ng1 Rc1 Nf3 Kc8 d7+ Kc7 d8N Qfb4 Ne6+ Kd6 Neg5+ Kc5 Ne5 Be3 Ne4+ Kd4 Nf3+ Kd3 Nc5+ Ke2 Nd3 Bd4 Ne3 Rb1 Re4 Rc1 Bc7 Na4 d6 Nb6 Nd1+ Kf1 Ref4 Qe1 Qg7 Qg3 Qf6 Kg2 Ne3+ Kh1 Nf1 Qf2
2q3BB/Q2Q4/1N5n/2r3b1/KP1P2rk/1NpQ1r1n/1p2RPpb/Q2B3r w - - 0 1 legal: proof: e4 a5 a4 f5 exf5 b5 b4 axb4 g4 h5 gxh5 b3 Na3 b2 Ra2 b1R Rb2 b4 Nf3 Ba6 Rb3 Bc4 Rc3 b3 Ng1 b2 Re3 Nc6 Rb3 Nb8 Rb5 d6 Rc5 Bb3 cxb3 dxc5 b4 c4 h4 Kf7 d4 Kf6 Kd2 g5 Kc3 c5 a5 e5 a6 g4 h6 e4 a7 g3 h5 e3 h7 Kg5 h6 g2 f6 Ne7 f7 Ng8 Qd3 Ne7 Be2 Nbc6 Bd1 Ng6 Nf3+ Kg4 Re1 e2 Bf4 Nce5 Nd2 Rg8 h8Q Rc8 a8B Kh4 h7 Ng4 Be5 Nh6 Nb3 Nf4 Qg7 Nh3 h8Q Bd6 f8Q Rc6 Qhh7 Qc8 Qgf7 Rg4 Bh8 Bh2 Qd7 Ra1 Kc2 c3 Nc4 Ra3 Nb6 c4 Qff5 Rc5 Bd5 Rca5 Bg8 Rc5 Rf1 e1R Qff7 Re3 Re1 Rf3 Re2 Raa5 Qa4 Rh5 Qfd7 Rac5 Kb1 c2+ Ka2 c1B Ka3 c3 Qda7 Rhe5 Qhd7 Bg5 Q4a6 Ref5 Ka4 Rfd5 Qb1 Re5 Qad3 Ree4 Qa1 Re8 Rd2 Re1 Re2 Rh1
8/1N1R1rkP/1Q1r2B1/b2nNR1Q/p2p2NK/pN1rq1R1/bP4Pn/r7 w - - 0 1 legal: proof: e4 f5 f4 b5 a4 bxa4 d4 h5 Qxh5+ g6 Qh7 c5 dxc5 g5 exf5 Nc6 f6 Nb8 f5 Bh6 Bd2 Bf8 Bf4 gxf4 Kf2 d5 c4 a5 h4 e5 c6 a3 c7 e4 f7+ Ke7 f6+ Ke6 h5 f3 Kg3 f2 h6 a4 c5 e3 c6 e2 Nh3 e1R Nd2 Ra7 Nb3 Ra6 Rd1 Ne7 Kh4 Ra8 Bd3 f1R Nf2 Qd6 Rh3 Nd7 Ng4 Qc5 Bg6 Ne5 Rg3 Qe3 Rd3 Ba6 c8N Bc4 c7 Ra1 Nd6 Ra6 Nb7 Rd6 c8N Bg7 Na7 Rhd8 f8Q Rf5 f7 Nf3+ Kh3 Nh2 Kh4 R8d7 Qb8 Bc3 f8R Ba5 Nc6 Rf7 Nce5 Rd8 Qa7 R8d7 Qb6 Rd8 Nd2 Ba2 Nb3 Rd7 Qg7 Rd8 h7 Rd7 Qh6 Rd8 Nf2 Kf6 Qh5 Kg7 Nfg4 d4 Rc3 Re8 Rc7 Nd5 Rd7 Rc8 Nf6 Rc3 Nfg4 Re7 Rf2 Rf7 Rf5 Rd3
Q2BBb1N/b3pqnr/Q2p4/4R3/5P1P/3Pn1RB/1k3p1r/1B2nKRn w - - 0 1 legal: proof: a4 c5 b4 g5 bxc5 b5 axb5 g4 g3 Na6 Bh3 Bb7 Kf1 Nb8 f3 gxf3 Bf5 f2 Bd3 Ba6 Kg2 Bc8 Kf3 f1N g4 f5 g5 h5 Na3 f4 Nc4 Bb7+ Kf2 f3 Ne3 Bd5 Ng4 hxg4 Ra3 Ng3 Ke3 f2 Ra1 Bf3 exf3 Nf1+ Ke2 Qa5 Ra4 Qc7 Ra1 Qd8 h4 Kf7 c4 Ke6 f4 a5 c6 a4 g6 d6 c7 a3 c8B+ Qd7 c5 Kd5 b6 Kd4 c6 g3 c7 a2 g7 g2 b7 Ne3 Nh3 Ra6 Ng5 Qf5 Re1 Nf6 g8R Nc6 b8Q Ra3 Bb1 Ne4 Bd7 Rh7 c8B Nd8 Nf7 Ne6 Nh8 Qf7 Rg3 Ng7 Qa8 Rd3 Ba3 Kc4 Qc1+ Kb3 Bc5 Rc3 Qd1+ Kb2 Bb6 Rc1 Qda4 g1N+ Kd3 Nf3 Ke2 Rd1 d3 Rc1 Reg1 Ne1 Be8 Rd1 Bh3 Rc1 Rg4 Rd1 Ba5 Rc1 Bd8 Ng3+ Kd2 Nh1 Ke2 Rd1 R4g3 Rc1 Bc2 Rb1 Q4a6 Rd1 Rc1 a1B Bb1 Kb3 Rc2 Bd4 Rc5 Kb2 Re5 Ba7 Rg6 N1c2 R1g3 Rg1 R6g4 Rg2 Rgg5 Rh2 Rg1 Ng2 Rg3 Nge1 Kf1 Ne3+
1n3QQ1/n1Q2qq1/4k3/Pp2q2p/1KR3pN/2BPP3/BBrn1b2/r1RQ4 w - - 0 1 legal: proof: h4 d5 g4 e5 c4 f5 b4 a5 h5 axb4 gxf5 g5 cxd5 e4 d3 Bd7 Kd2 e3+ Kc2 Be6 Nd2 exd2 Rh3 Bf7 Rh1 Bg6 hxg6 Qe7 Bh3 Qd7 Bf1 Qd8 Kb3 Kd7 a4 b5 f4 h5 f6 c5 f5 g4 d6 Qc8 g7 Qe8 f7 Ne7 g8Q Nec6 f6 Qe5 Nf3 Na7 Bg2 Ke6 d7 Rh6 d8Q c4+ Ka2 c3 Kb3 c2 e3 Be7 Bb2 c1Q Nh4 Qcc7 Rc1 Bd6 f8Q+ Qf7 Qc7 Rh7 Qdc2 d1Q Bc6 Qf3 Qd1 Rh8 Be8 Qb7 Rf1 Be7 Rf4 Rh7 Rfc4 Bd8 Ka2 b3+ Ka3 Rh6 Bc3 b2 Kb4 b1N Bc6 Nd2 Bg2 Rg6 Bc6 Rg5 a5 Rf5 Qh7 Qg7 f7 Rf1 Qhg8 Bg5 Bg2 Bf4 Bb2 Bg3 Be4 Bf2 Bd5+ Kf6 Rd4 Re1 Ba2 Qbd5 Rdc4 Ke6 Qfc5 Qd7 f8B+ Qdf7 Bd6 Nd7 Be7 Rc8 Bf6 Nb8 Qcf8 Qf5 Bfc3 Qfe5 Qe2 Rh1 Rc2 Rc1 Qd1 Ra1 Rc1 Be1 Qc6+ Qd6+ Rc5+ Nb3 Bd2 Bf2 Qb6 Rc6 Qc7 Qf4+ R5c4 Rc5 Rd4 Rc2 Rc4 Qfe5 Bdc3 Nd2
4Qq2/1bQ5/BpP1P1N1/1Q1PR3/R5QR/np5r/Knknpqr1/3rB3 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 a5 b3 a4 Nc3 c6 Nb5 cxb5 Bc4 b4 Bf1 Bd6 exd5 axb3 Bd3 e4 Bf1 Be5 fxe5 Qe7 Qg4 Qd7 Qd1 Qd8 h4 Ke7 c4 g5 a4 f5 d4 f4 Kd2 g4 c5 b2 Kc2 b1R e6 Kf6 a5 Kf5 d6 b6 d5 g3 a6 g2 c6 e3 h6 Ke4 a7 f3 h5 f2 d7 Rb3 h7 Nh6 Ne2 g1Q Ra4 Bb7 Nf4 Na6 Bd2 Nc5 Rh4 Rb1 Be1 Ng4 h6 Ne5 Ba6 f1N Qg4 Qf8 d8Q e2 Qc7 Rd1 Kb2 Nc4+ Ka2 Qf2 Ng6+ Kd3 Rh5 Kc2 Re5 Re8 a8Q Na3 Qac8 Rg8 h8Q Nd2 h7 Nd3 Qa8 Rg7 Qg8 Nb2 h8R Ree7 Rh4 Ref7 Qe8 Rf3 Qc4+ Rc3 Qb5 Rh3 Nh8 Rgg3 Qg4 Rg2 Ng6 b3+
4K2Q/R1b1BpN1/4Ppq1/3Bq2P/2QNPn2/4rnB1/nk1rp1N1/1B4r1 w - - 0 1 illegal: No proof kernel
1Q1bB1b1/Kr3p2/1QP2QPN/B3b3/n2Pq1p1/NpNrqQ2/8/2k2rR1 w - - 0 1 illegal: No possible last move, all moves rejected
2b1qr1R/n3P1k1/2rpB1p1/QpbPq1Rb/3NN1N1/8/4PQ2/K1N1qR2 w - - 0 1 legal: proof: a4 b5 axb5 c6 b6 Ba6 Nc3 Bb7 Nb1 Bc8 b4 e5 f4 Ba6 fxe5 Bc8 b5 cxb5 g4 f5 Bg2 f4 Ba3 h6 Be7 Nc6 Bg5 Nd4 Bf1 Nf5 gxf5 hxg5 d4 Kf7 Kd2 a5 Kc1 a4 Kb2 f3 c4 g4 h4 g6 d5 g3 c5 g2 c6 f2 e6+ Kg7 b7 Qa5 b8N Rh5 e7 Rg5 f6+ Kh6 h5 Qc7 f7 Ra6 Nc3 Rf5 Nf3 g1Q Nh2 Qd8 c7 Nf6 Na2 Qe8 Bh3 f1B Ng4+ Kg7 Qe1 Bg2 Qa5 Ne4 Nc6 Bf3 Nd4 Rc6 Nc1 Qe1 Rg1 a3+ Ka2 Nd6 h6+ Kh8 h7 Bh6 Rg2 Kg7 h8R Be3 Rb1 Rf4 Ka1 a2 Rg1 Rf6 Rf1 Bg1 Rb3 Rf5 Re3 Rf4 Re5 Rf6 Rg5 Rf5 Nf2 Bh5 Bg4 Rf4 Be6 Rf3 Ng4 Rf6 Nf3 Bc5 Nd4 Rf5 f8N Rf7 Nh7 Rf8 Nhf6 Nf7 Rff5 d6 Rf1 Nd8 Ne4 Ra6 Re5 Nc6 Ref5 Na7 Rg5 Bb7 c8Q Rc6 Bf7 Ba6 Qf5 Bc8 Be6 Rc7 Qf2 Rc6 Kb2 a1Q+ Kb3 Qac3+ Ka2 Qg3 Ka1 Qe5
1B1Nb1r1/q2PNp1P/r1qP1Qq1/5n1p/1R3KR1/r5np/1Q1QN1N1/7k w - - 0 1 illegal: No proof kernel
4Bk2/1r1pb3/QRB1qPPn/Q4BN1/q1p1Qb1R/2Pbr1Bp/5K2/7q w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 d4 e5 dxe5 fxe4 f4 Qe7 f5 Qd8 g4 Be7 h4 Bb4+ Nc3 Bc5 h5 Nc6 Nce2 Nce7 Nf4 gxf4 g5 Ng6 hxg6 Bf8 b4 h5 e6 a5 g7 c5 c3 f3 e7 e3 b6 e2 b5 c4 b7 a4 b8Q h4 f6 a3 b6 a2 b7 Qa5 Qd4 Kf7 Qbd6 Qe5 b8Q Nh6 Bg2 Qe6 Rb1 a1Q Qe4 Ra7 Qa6 Bb7 Qd8 Qa4 e8B+ Kg8 Ba3 Be7 Qda5 Rh7 Kf2 e1B+ Kf1 f2 Nh3 Bd5 Bd6 Rb7 Bg3 Bd2 Rb6 Bf4 Ke2 Bc7 Rh2 f1Q+ Ke3 Qh1 Kf2 Bf4 Bf3 Nf7 Bg4 Rh6 Bf5 Rg6 Qd4 Nh6 Qe4 Kh7 g8B+ Kh8 Qe1 Be4 Bgf7 Bc2 Qe4 Bd3 Bg8 Rg7 g6 Rh7 Ng5 h3 Rg2 Qd6 Bd5 Qe6 Bc6 Kg8 Bh2 Kf8 Rg4 Bb4 Rh4 Re7 Bf7 Re8 Bg3 Be7 Bb5 Rc8 Be8 Rc5 Bc6 Re5 Qg2 Re1 Qe4 Re3
1Q5R/r1P3pb/3BN2n/4p3/1P1q1n1k/1KBBp2b/Pbq3q1/NQ2N1N1 w - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 g4 h5 gxh5 b5 Na3 c5 Rb1 a4 cxb5 c4 Rb3 axb3 d4 Ra6 Bg5 Rc6 Bc1 Rc5 dxc5 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 Kf6 f4 d5 h4 e5 h6 e3 c6 b2 f5 b1B h7 Qc7 h5 Kg5 f6 Na6 h6 Be4 b6 Bef5 b7 Bc5 b8B Qb7 f7 Nc7 f8N Ne6 Bb2 Nf4 Bd3 d4+ Kc2 c3 Qb1 Be4 Bd6 Bh3 c7 Kh4 Kb3 c2 Ne6 c1Q Bc3 Bf5 Rh2 Qg2 Nc2 Be4 Na1 Bg6 Bb5 d3 Rh1 d2 Bd3 Bd4 Rh2 Nf6 Rh1 Ra8 h8N Ra7 h7 Bf5 Nf7 Ng8 h8Q+ Nh6 Nfg5 Bh7 Qb8 d1Q+ Kc4 Kg4 N5f3 Qcc2 Ne1 Kh4 Rh2 Qdg4 Rh1 Qce2 Kb3 Qef2 Bd2 Bb2 Bc3 Qc2+ Kc4 Qgd1 Qc1 Bg6 Ng5 Kg3 Qb1 Bg4 Bf5 Nf7 Rh4 Bh3 Rh8 Bh7 Ne6 Kh4 Be4 Nh6 Bg6 Qcf2 Bc2 Qd4+ Kb3 Qfd2 Bd3 Qc2+
NkN5/3BKb2/PB2Q2P/n2rN2n/nb1N4/QRp2pqQ/P1pb1b2/8 w - - 0 1 legal: proof: f4 b5 b4 d5 g4 f5 Na3 a5 bxa5 e5 fxe5 h5 c4 dxc4 Rb1 f4 Rb3 Ra6 Rg3 Rf6 Rg2 Rf5 gxf5 Nh6 Rg3 Ng8 Rg4 hxg4 Kf2 Kd7 h4 c5 d4 Kc7 e4 g5 f6 b4 h5 b3 a6 c3 f7 g3+ Kf3 c4 e6 c2 Kg4 f3 Kf5 g4 e5 c3 d5 g2 h6 g3 d6+ Kc6 d7 Kc7 e7 b2 Ke6 b1N e8N+ Kc6 Be3 Nd2 Qe2 Nf6 Nd6 Kc7 Nac4 Nh5 Bb6+ Kc6 Rh4 Be7 f8Q Qc7 Rf4 Bb7 d8Q Nd7 Nc8 Bb4 Qh4 Nb3 Qh3 Na5 Qe1 Rh7 Ne2 g1B Qe7 g2 Qc1 Bgc5 Qa3 Rh8 Kf7 g1B e6 Bce3 Ne5+ Kd5 Rc4 Bd2 Nd4 Nc5 Qd7+ Qd6 e7 Bf2 e8N Na4 Rc7 Rg8 Bb5 Rg5 Qdg4 Ba8 Bd7 Bc6 Rb7 Bb5 Bd8 Bc4 Nc7+ Kc5+ Qe6 Bd5 Nc4 Qg3 Ne5 Rf5+ Ke7 Bc4 Qg6 Bf7 Qe6 Rg5 Na8 Rf5 Ng4 Rd5 Ne5 Bfe3 Qhf5 Bf2 Qb2 Ba3 Rb3 Bb4 Qa3 Qg1 Qh3 Qh2 Nd6 Qg3 Nc7 Kb6 Na8+ Ka7 Bc7 Rc5 Bb6+ Kb8 Nc8 Rd5+
7N/qr1rp1k1/bp4N1/Q1KR2b1/P2r1N2/3r2PB/1nPp1B2/Q1B3Nb w - - 0 1 illegal: No possible last move, all moves rejected
q2N1Bb1/1NKB1r2/1rnPnB2/2Q3B1/6n1/P1P5/1p1RqppN/k2n3Q w - - 0 1 legal: proof: b4 a5 f4 axb4 a3 c5 Ra2 e5 Ra1 h5 g4 d5 gxh5 e4 e3 Bd6 Ra2 d4 exd4 Bc7 d5 Be5 Rb2 c4 Rb3 cxb3 fxe5 Kf8 Bh3 Ke7 Bf1 Ke8 Kf2 Kd7 Ke3 g5 Kd4 b5 Kc5 f5 d4 e3 h4 b2 d6 Ke6 h6 f4 h5 e2 h7 e1Q h6 g4 d7 g3 Nd2 b1N Bg2 b3 Ne4 b4 Ne2 f3 Nd6 f2 Nb7 b2 Bc6 g2 Ng3 b3 Bg5 Nc3 Nf1 b1N Nh2 b2 d5+ Kf5 Kd6 Ke4 e6 Ra7 e7 Na4 Rf1 Nc5 e8Q+ Ne6 Qeh5 Nf6 Qc1 Qd2 Rd1 Qe2 Rd2 Ng4 Qh1 Nc3 Bb5 Qg8 d8N Nd1 Bd7 Nc6 c3 Qe8 Na5 Rf8 h8B Rb7 h7 Rb6 Nab7 Rf7 Bg7 Qg8 h8B Qe8 Rc2 Kd3 Bf8 Kc4 Bhg7 Kb3 Rd2 Ka2 Bh8 Ka1 Bhf6 Ng7 Kc7 Q8e4 d6 Qa4 Rd4 Qa8 Na5 Ba6 Rd2 Bd3 Nab7 Bh7 Bh4 Bg8 Qc5 Qd3 Bfg5 Qf3 Bf6 Qe2 Bhg5 Ne6+
2bNq2Q/qRQn3R/Rq1p3Q/r5PP/1B1Q1Pq1/1r3k2/p2Kp2b/2N5 w - - 0 1 legal: proof: f4 c5 a4 f5 d4 cxd4 e3 g5 fxg5 b5 axb5 f4 g4 h5 g6 f3 g5 Nc6 Bc4 Nb4 Be6 Nd5 Bg4 Nf4 exf4 hxg4 b4 e5 c4 Ke7 h4 Kd6 c5+ Kd5 g7 Ke4 c6 a5 c7 a4 b6 f2+ Kd2 f1Q b5 g3 b7 d3 b8R a3 b6 g2 b7 Bc5 Nf3 g1Q Nd4 d6 Nc6 Qe8 Nd8 Nf6 g8Q Ra5 Qe6 Nd7 Qh6 Bb6 Qa4+ Kf3 Qd4 e4 Nc3 Qff2+ Ne2 Bc5 Bb2 Qb1 Bc3 Qb6 Bb4 e3+ Kd1 d2 Nc1 e2+ Kc2 d1Q+ Kc3 Qdg1 Kd2 Qg4 Ra2 Ne5 Rh2 Be6 c8Q Nd7 Qc7 Rg8 Rc8 Rf8 b8Q Rf5 Rb2 a2 Qa8+ Rd5 Rb8 Ra3 Rb7 Rb3 Rc2 Qa7 Rc4 Bb6 Rc6 Ra5 Qac8 Bc5 Ra6 Bb6 Qcc4 Qfg1 Qdh8 Bf2 Q8c7 Bg3 Rh3 Qgb6 Qcd4 Kg2 h5 Bh2 Re3 Bf5 Re7 Kf3 Rh7 Nf6 Nd3 Bc8 Nc1 Nd7
1Nnn1r2/q3pqP1/B4QN1/kBBP2pQ/B3RP1n/4b3/3pn1N1/5r1K w - - 0 1 legal: proof: e4 b5 h4 c5 a4 d5 axb5 g5 hxg5 c4 d3 cxd3 Qf3 d4 Qg4 Nf6 Qd1 Ng8 b4 f6 g4 Bb7 Ra6 Qc8 g6 Qd7 g5 Qg4 g7 Bd5 exd5 Qf4 g6 Qh2 Re6 Qd6 Re5 Qd8 Rg5 fxg5 c4 Kd7 f4 Kc7 Kf2 Kb6 Kg2 a5 Rh3 h5 Na3 h4 Re3 h3+ Kh1 h2 Qh5 a4 Nf3 d2 Ne1 d1N Ng2 d3 Re4 Nh6 g8B d2 Be6 Bg7 Bd7 Bd4 g7 Nf7 Bc6 Ne3 c5+ Ka7 Nc4 a3 b6+ Ka6 b7 a2 Bd7 a1Q c6 Nd6 c7 Qe8 c8B Nef5 Ba3 Rf8 Ba4 Be3 Ne5+ Kb6 b5 Nh4 Ng6 Qf7 Bc5+ Ka5 b6 Nc6 b8N Nd8 Ba6 Nc8 b7 Qd4 B6b5 Ra6 Ba3 Qa7 Bc5 Rb6 Ba6 Rb3 Bfb5 Rb2 Nd7 Rb4 b8Q Rb1+ Qd1 Ra1 Qe5 Rb1 Nb8 Rc1 Qg1 Rf1 Qf6 Rf3 Qd1 Nf5 Ne1 Rf1+ Kg2 h1N Qh5 Nhg3 Kh2 Ne2 Ng2 Rf3 Kh1 Nh4 Bc2 Rf2 Bca4 Rf1+
2k1bb2/2pN1B2/1Bq1bQp1/4pRNP/1Kq3rB/N1P4n/4P1Qb/2Nr4 w - - 0 1 illegal: No possible last move
1Q2Nn2/N1p2nKP/QRPpp1q1/8/4nr2/Q3n2k/rRBq2bP/1R1R4 w - - 0 1 legal: proof: d4 e5 dxe5 Ke7 a4 b5 axb5 Nf6 e4 Ng8 e6 Kf6 e5+ Kf5 e7 Ke6 e8Q+ Be7 g3 g6 Bd2 h6 Bg5 Kf5 e6 Bf6 Bd2 Bh4 gxh4 Kf6 Bg5+ hxg5 Qe7+ Kg7 Qf6+ Kf8 e7+ Ke8 Qe6 fxe6 Ra5 Kf7 Ra3 Ba6 Ra1 Bc8 Ke2 Kf6 Ke3 Kf5 Kd4 a5 e8R g4 c4 g3 f4 g2 b4 g5 c5 g4 h5 a4 b6 a3 h6 a2 b5 g3 c6 Ra5 b7 Ra6 h7 Qg5 b6 Ra7 Nd2 Ra5 Qe2 Ra4+ Nc4 Qh4 Rd1 a1N Nf3 Kg4 Ke5 g1Q f5 g2 f6 Qe1 f7 Ra2 f8Q Nc2 Nd4+ Kh3 Nb5 Nh6 Kf6 Ne3 Kg7 Nf7 Na7 Qd2 Qa3 Rf8 Nd6 Qf2 Qb4 Qf5 Qa6 Qfc2 Bb5 g1N Bd3 Ne2 Qba3 Nc3 Be4 Qb1 Bc2 Ne4 Rd8 Kg2 Rhe1 Kh3 Ne8 d6 Rh1 Nd7 b8R Nfe5 b7 Rf4 Rhe1 Nf8 Rg1 Qb5 Rb1 Nf7 Rgd1 Qh5 Rd7 Nfg5 Rf7 Qg4 Rf5 Nf7+ Rg5 Qh5 Rgb5 Qf5 Rb6 Qh5 Ra8 Qf5 b8Q Bb7 Q6a4 Ba6 R1b2 Bc4 Qa6 Bd5 Rbb1 Nh8 R6b2 Nf7 Qbc8 Bc4 Rab8 Bf1 R8b6 Bg2 Qb8 Qg6+
N3q1R1/qpB3Q1/1bk2qpN/q1pN1P2/1PB2r1Q/3n2B1/2bPn1B1/7K w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 c5 a3 a4 Ra2 Rh3 Rb2 Rh8 Rb3 axb3 a4 Ra5 Bd3 Ra6 Bf1 Rc6 dxc6 Rh5 Be2 Rh3 Bf1 Rh8 f4 e5 Kf2 e4 Kg2 g3 h4 e3 c7 Kd7 h5 b2 f6 e2 h6 e1Q f7 g6 f5 Rh7 a5 Kc6 a6 Bd6 f8B Kd7 a7 Bf4 a8N Nc6 Nc3 b1Q Nh3 Nd4 Qg4 Nf6 Bd6 Qee8 Bb2 Ne4 Nf2 Qa1 Qh4 Kc6 Nd5 Be6 c8B Qf6 Bc7 Qa5 Ng4 Ne2 Bbe5 Nf2 Bed6 Rd7 h7 Nd3 h8Q Rh7 Qg7 Bd7 Qh3 Rh4 Nh6 Bg5 Rh2 Rf4 Qh4 Qa7 Kh1 Be6 Ndb6 Bb3 Be6 Bc2 Bc4 Qa5 Rh3 Qa7 Nd5 g2+ Kh2 Qa5 Re3 Qa7 Re7 Qa5 Rf7 Qa7 Rf8 Qa5 Rg8 g1Q+ Kh3 Qa7 Bg2 Qga1 Kh2 Q1a5 Be5 Qfe6 Bed6 Bd8 Kh1 Qf6 Be5 Re4 Bg3 Rf4 Bb8 Bb6 Be5 Qa3 Bc7 Q3a5
B2b2Qr/Q2r2nR/8/1PrQ3n/P1p1n3/pP2RN1k/3p1Q2/Rb1N2Kn w - - 0 1 illegal: No proof kernel
k2N4/P2r3K/RqP3Q1/1r1Npn2/1p3qp1/1n2rnP1/2N3B1/BQ1N2qB w - - 0 1 legal: proof: e4 c5 h4 a5 d4 g5 dxc5 g4 b3 Bh6 b4 Bg5 hxg5 axb4 a4 f5 Rh3 d5 Rh1 d4 Ra3 Be6 Re3 Bd5 exd5 Nc6 Re5 Nb8 Re4 fxe4 Ke2 Kd7 f4 Kc8 c4 e5 g6 b5 a5 Kb7 a6+ Ka7 g7 h5 d6 h4 g3 h3 d7 e3 Kd3 h2 Ke4 e2 Kf5 e1R Kg6 d3 c6 d2 f5 b3 c5 b2 c7 b4 c8B Re4 f6 Rh7 f7 Qc7 f8Q Qd6+ Qf6 Rh3 d8N Nd7 Nf3 Qb8 Ne1 Re3 Nc3 b1N Bb2 Rh7 Bg2 Qb6 Nc2 Nh6 g8N Rb8 Ba1 Nf5 Bcb7 Rf7 Rf1 h1Q Ne7 Qg1 Ned5 Qf2 Qe1 Qf4 Nd1 Re7 Bc6 Rb7 Rh1 Ka8 a7 Rh7 Rh6 Rf7 Nf2 d1Q Bh1 Qdd4 Nd1 Nd2 Qg7 Nf3 Kh7 Rf6 Qg6 Rd6 Bb5 Rb8 Bf1 Rb7 Bfg2 Rb8 c6 Nc5 Rh2 Nb3 Qc3 Rd3 Qb2 Qg1 Qb1 Re3 Bf1 Qg5 Rf2 Qf4 Bfg2 Qbd4 Re2 Rb5 Rd2 Qb6 Rd3 Nc1 Ra3 Nb3 Ra6 Rd7+
Qr3B2/4qR2/1N1pr1p1/PNp2Q1K/2P1N3/Bkb3r1/1NbPr3/3qB1q1 w - - 0 2 legal: proof: b4 f5 f4 h5 a4 a5 bxa5 d6 e4 Rh7 g4 Nd7 e5 Nb6 g5 Qd7 e6 Qd8 Bd3 Nf6 gxf6 Nd7 exd7+ Kf7 Be4 fxe4 f5 Rh6 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 Ke2 c5 h4 e5 c4 b5 h5 g3 h6 e3 Kf3 e2 Kg4 e1R h7 g2 a6 e4 a7 b4 a5 b3 Qf3 b2 Kh5 e3 Ne2 g1Q Ng3 e2 Na3 b1R Nb5 Be7 Ne4 Rb3 Ba3 Rf8 h8Q Rb8 a8N Re8 Nb6 Rc3 Qf4 Rg3 Na4 Qc7 d8B Bb7 Nec3 Be4 Nb2 Bc2 Ne4 Qd7 Rh2 Qc7 Rf2 Qb7 Bc7 Bd8 Qf3 Re6 Bb6 Qe7 Qh7 Ke8 f7+ Kd7 f8B Qf7+ Qg6 Bf6 Qh1 Bc3 f6 Qe7 f7 Ra1 Rg2 e1Q Rf2 Qd1+ Qg4 Rb1 Bd8 Rc1 Ng5 Ra1 Qa8 Rb1 Rf5 Re2 Ne4 Ke6 Rf3+ Ke5 Qh3 Qb7 Bh4 Qe7 Na4 Rb3 Nb2 Rg6 Be1 Re6 Nc7 Kd4 Qf5 Qf2 Na4 Qe3 Nb5+ Kd3 Rf1 Qg1 Rf4 Bb1 Nb2+ Kc2 Qg6 Qb7 Be7 Bf6 f8N Rg3 Nd7 Bc3 Nb6 Kb3 Bf8 Bc2 Rf7 Qe7 Qf5 g6+
bQ6/2bn1qR1/pqpN4/1B1k2pK/QP4N1/q5P1/PN2nb2/2QNb2R w - - 1 2 legal: proof: d4 Nf6 d5 Ng8 d6 Nh6 c4 Ng8 c5 Na6 dxc7 Nb8 c6 bxc6 h4 g5 h5 a6 Rh4 Ra7 Rd4 Rb7 Rh4 Rb3 Rh1 Rd3 e4 d5 Qg4 h6 Qd1 d4 Bf4 Rf3 Bd2 Rf6 Bf4 Rg6 hxg6 Be6 Bb5 Bf5 Bf1 Bc8 Be2 f6 Bc4 h5 Be5 fxe5 Bf1 Rh7 Rh2 Rf7 Rh1 Rf6 Bc4 Rd6 Bf1 Rd5 exd5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kf3 Kd6 b4 d3 g3 h4 g7 d2 Qa4 d1Q+ Ne2 h3 Nc3 Nf6 g8N h2 Nh6 Qb3 Nf4 Ne4 Re1 Qa3 Ng4 Bb7 Nd3 Ba8 Nb2 Nd7 Bb5 e6 c8Q Qb6 Re3 Bg7 Ncd1 Nc3 Qb7 Ne2 Qb8+ Ke7 d6+ Kf7 Nf6 e4+ Kg4 e5 f4 Ke6 Kh5 Bh8 Rd3 e3 Ng4 e4 Rd5 Be5 f5+ Kf7 f6 Ke6 f7 Bf4 f8Q Be5 Rf1 h1Q+ Nh2 Qf3+ Ng4 Qf6 Rh1 Qg7 Qf1 Qf7+ Kh6 Bf4 Rf5 Be5 Rf6+ Kd5 Rg6 Nd4 Kh5 e2 Qf4 e1B Qd2 e3 Qc1 Qf8 Rg7 e2 Nc4 Bf2 Ncb2 Nc5 d7 e1B d8N Ne2 Nb7 Bc7 Nd6 Nd7 Kh6 Qf6+ Kh5 Qf7+
6Qn/r1k1bN2/3NQ3/R2pQ1BP/NP2r1rr/1p1P4/pn1n1R2/n3K2Q w - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 exf4 e3 Bb7 c3 Ba6 Bc4 Bc8 Bb3 c4 Ba4 h5 Bb3 cxb3 g4 h4 Ba3 Qg5 Bc1 Qh5 gxh5 Rh6 Qg4 Rh7 Qd1 Rh8 h3 g5 Ra5 g4 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Rh7 Ba3 Rh6 Bc1 Rh8 e4 Kd8 e5 a5 g5 f5 e6 d5 c4 h3 c5 g2 e7+ Kc7 e8Q h2 c6 f3 g6 f4 g7 a4 d3 f2+ Kd2 f1N+ Ke1 a3 Be3 f3 Ra2 f2+ Ke2 Be7 Bg5 Na6 Nc3 Ne3 Nh3 g1R Na4 f1N Ke1 Nh6 g8Q Nc5 Rf2 Rg4 Qb1 Ra7 b6+ Kd6 b7 a2 c7 Nf7 c8N+ Kc7 Nd6 Nd2 Rhf1 h1R Qd1 Bf8 Qe6 Be7 Rf6 Rh2 R1f2 Rh7 Qf3 Nh8 Qh1 Rg7 Rf8 Re4 Ra8 Rg6 Bf6 Rgg2 Ng5 Rhh4 Ngf7 Rgg4 Bg5 Nc2+ Kd1 Kc6 b8Q Na1 Qbe8+ Kc7 Qe5 Rb7 Ra5 Ra7 Qe6 Nd7 Qe5 Nb6 Qe6 Nbc4 Qe5 Rd4 Ke1 Nb2 Qe6 Rdf4 Qe5 Bf6 Q8e6 Be7 Rf1 Rc4 Rf2 Rce4+
rq1Q4/1B6/5P1p/rR1bQpK1/1n1BP1b1/Q5NR/bp1Pp3/k3n1BQ w - - 0 1 illegal: No possible last move, all moves rejected
1K5Q/1B2bq2/rR1P1r1p/2P4k/Q2pB1p1/Pb2R2n/n1b2p1N/3R2RB w - - 0 1 illegal: No proof kernel
1R4QQ/1Pp1nRK1/3QR1Q1/1k3rb1/bp1b2N1/PPp2B2/1p6/B1qn2r1 w - - 0 1 legal: proof: g4 h5 gxh5 a5 e4 f5 exf5 a4 b3 Nh6 Qe2 Ra6 Bb2 Rg8 Na3 Rh8 Rb1 Ng8 Ba1 Ra8 Nc4 a3 Qe3 b5 Qc5 b4 Nb2 d6 Qc4 Qd7 Qc5 dxc5 c4 Qb5 cxb5 axb2 Bg2 c4 Bh3 Nh6 Bf1 Ng8 Ke2 Kd7 Ke3 e5 Ke4 g5 f4 c3 h4 g4 d4 g3 f6 g2 Kf5 e4 Kg6 e3 b6 Kc6 a3 e2 f5 e1Q b7 Ra7 h6 Na6 d5+ Kb6 h7 Qe2 f7 Qd3 h5 Bg7 f8Q Nf6 h6 Qd1 d6 Ne8 f6 Bg4 f7 Qd4 d7 Qd1 d8R Bf6 Nf3 g1B Qg7 Rg8 h8Q Nd6 f8Q Ne4 h7 Be7 Nh2 Bd4 Bg2 Bg5 Rb8 Nf2 Qd6+ Kb5 Rf1 Bd7 Ng4 Qc1 Bf3 Nd1 Re1 Ra8 Re6 Rf8 Qgg8 Rf5 Qhg7 Bc6 h8Q Bd7 Rf8 Nb8 Q7h7 Nc6 Rb8 Ra6 Qh5 Ra5 Kh7 Ne7 Qhg6 Qe3 Rc1 Ra8 Rc2 Qc1 Rce2 Ra6 Rf6 Rc6 Ree6 Rcc5 Kg7 Rce5 Rf7 Re1+ Qf6 Rg1 Qh6 Ka5 Qg6 Ba4 Qfe5+ Bc5 Qh2 Kb5 Qhh8 Bd4+
QnBrq3/1p2b3/bQ6/1PPK2pr/7R/Pp2R1BB/1R4Np/Bn4qk w - - 0 1 legal: proof: g4 a5 b4 f5 gxf5 g5 h4 c5 d4 a4 dxc5 e6 c6 Ra5 h5 Rd5 Bg2 Rd6 Bd5 exd5 Nd2 d4 Nb3 Rg6 hxg6 axb3 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 a3 h5 f6 h4 f7 d3 g7 d6 c7 d2 f5 h3 f6 Rh6 Bb2 Rh4 Nf3 Nd7 Rb1 Rg4 Ba1 Rg2 Rb2 Rh2 Qg1 d1R Ne1 Rd5 Ng2 Be7 f8Q Rd1 f7 Nb8 Qb6 Bf5 c8B Nf6 g8B Qe8 e3 Kf3 e4 Rd2 e5 Nd5 e6 Nc3 Bh7 Bg4 Bf5 Nb1 Qh8 Kg3 f8B Rd3 Bg7 Be2 Be5+ Kf3 Bg3 Rd2+ Bd3 d5+ Kd4 Rd1 c4 Rd2 Ke5 d4 Bf5 d3 c5 Rd1 Kd4 d2 Kd5 Ba6 b5 Bf8 Re1 Be7 Re4 Rhh1 Rh4 Rh2 Bc7 Kf2 Bg4 Kg1 Bg3 Kh1 Qg8 Rf1 Qh8 Rf8 Qg8 Bf6 e7 d1Q+ Ke4 Qg1 Kd5 Qh5 Bgd7 Rd8 e8R Qg6 Re3 Be7 Qf8 Qe8 Ne1 Rf2 Ng2 h2 Qg8 Rf7 Qh8 Bd6 Bh3 Rh7 Qe5 Be7+ Qed6 Nd7 Qb8 Rh5 Qa8 Nb8+
4nr1n/1B5N/1q4Rp/1P1p1Q1K/5p2/1pNQ4/PR1QPkqR/2bbn2R w - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 c5 g5 hxg5 b6 cxb6 Bh6 Na3 Bg7 Nb1 Bf8 d4 c5 b4 c4 b5 Ra7 Bd2 Rc7 Bb4 Rc5 dxc5 axb4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 c6 Ke4 g3 Ke3 g6 f5+ Kh5 b3 g4 h6 b7 c3 g7 f3 c7 c2 g5 c1N g6 f2 Bg2 f1Q Nf3 f4 Qd3+ Kf2 Ng5 Ne7 g8R Na6 g7 Ng6 b8Q Ba3 Bb7 Qg2 Nc3 d5 Qa8 Bb2 Rb1 Bf5 c8Q Qb6 Nh7 Nc7 Qa5 Ne8 Qb4 Be4 Qf5 Ba3 Qdc4 Bd3 Rb2 Bc2 Qcd3 Bd1 Rh2 Nd6 Rc8 Rf8 g8R Nh8 Rg6 Ne8 Qbd4+ Kf1 Qd2 Nd3 Rcc6 Ne1 Q4d3 Nd6 Nb1 Kg1 Rc1 Kf2 Nc3 Ne8 Rbb1 Bc2 Rd1 Bc1 Rb2 Nf3 Re1 Bd1 Reh1 Ne1
k1rN2R1/2r4B/pnK1PB2/r1ppq1Q1/P1Pp4/3R1Qn1/2nQ2Q1/B4r2 w - - 0 2 legal: proof: d4 f5 b4 e5 g4 exd4 gxf5 a6 b5 Bc5 Bf4 Bb6 Bc1 Ba7 b6 g5 bxa7 g4 h3 b6 Qd3 g3 Qd1 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Qh4 Bh6 Qf6 Bc1 Qd8 Kd2 h5 Kd3 c5 Ke4 b5 Kd5 d6 c4 Kd7 f4 Kc7 a4 Kb7 e4 b4 g5 g2 e5 b3 e6 b2 g6 h4 g7 h3 f6 h2 f7 Rh6 f8B Qf6 f5 Rh8 Be7 Rh4 Nh3 g1N Nc3 b1R Bd3 Nd7 Bb2 Rd8 a8Q+ Kc7 Nb5+ Kb6 Ng5 Rh5 Nf7 Nf3 Rg1 h1R Ra3 Ne1 Ba1 Nc2 Qd2 Rc8 Nd8 Nh6 g8Q Qg7 Rg5 Rhf1 f6 Nf5 f7 Ng3 f8Q Rh7 Bf5 Qf6 Rd3 Rf7 Bh7 Rg7 Nc7 Rb5 Ne8 Ra5 Qc6+ Ka7 Qff7 Ne2 Qh5 Qf4 Bf6 Ng3 Qh1 Qe3 Qhg2 Re7 Qg6 Rg7 Qh5 Kb8 Qhf3 Qf4 Qc7+ Ka8 Kc6 d5 Rg4 Nb6 Rg6 Rb8 Qe5 Ra7 Qg5 Qe5 Rg8 Rc8+ Nc7+ Raxc7+
n1rR2B1/QQ1p3p/3p2P1/NK6/p2NBb1N/P1Bbr1kP/br4r1/6B1 w - - 1 2 illegal: No possible last move
1n2Q3/5R2/R1qP1pNr/pp3pR1/r1R1N2N/B1b1pb1b/PP3Q2/3k1K2 w - - 0 1 legal: proof: f4 c5 c4 h5 g4 d5 gxh5 g6 cxd5 c4 f5 gxf5 Na3 c3 Bg2 Qb6 Be4 Qd6 Bb1 Qd8 e4 c2 d6 cxb1B d4 Kd7 e5 Kc6 e6 Nd7 exd7 Kd5 Qd3 Ke6 d5+ Ke5 Qd1 Kf6 h4 Ke5 h6 Ke4 h7 e5 h5 b5 h6 a5 Nf3 f6 Nc4 Ra6 Be3 Be7 Ncd2+ Kd3 Ne4+ Kc4 Kf1 Ra8 Qe2+ Bd3 Nh4 Qc7 d8R Bb7 d7 Rc8 Rg1 Qc6 Rg5 Bb4 d6 Bc3 Bc5 Ne7 Rf8 Ba8 d8R Bb7 Nf2 e4 Ba3 e3 Rf7 Kd4 Rb1 Be4 Rc1 Bf3 Qe1 Bg4 Ne4 Kd3 Qg3 Rc7 Ra8 Rcc8 Ra6 Rce8 Rd1+ Kc2 Rd4 Kc1 Rc4 Kd1 Qf2 Reg8 Ra4 Rg6 Rb4 Rc8 h8Q Ba8 h7 Rh6 Ra4 Rg8 Ng2 Rgg6 Rb4 Rh4 Qd8 Rgh6 h8N Qb7 Nd2 Be2+ Kg1 Nc6 Ng6 Nb8 Qe8 Re4 Ra4 Bg4 N2h4 Qb6 Kg2 Bd5 Rb4 Qc6 Kf1 Rf4 Rd4 Bdf3 Rb4 Rd4 Ne4 Rc4 Rb3 Ra4 Rb4 Qc8 Rc4 Qb7 Rc5 Qc6 Rc4 Bh3+
3kn2Q/3N2pN/2pR1P2/Kq6/1r4b1/ppn2p2/Pr2P1NQ/BrNR2Q1 w - - 0 1 legal: proof: c4 c5 b4 Qa5 bxc5 Qd8 c6 Na6 c7 Nb8 f4 e5 fxe5 Nf6 c5 Ng8 c6 dxc6 g3 h5 Qb3 f5 Qd1 f4 Bb2 f3 Bh3 Bc5 Bc1 Be3 Bg4 Bf4 gxf4 hxg4 d4 a5 Kd2 b5 Kc3 g3 h4 a4 Kb4 a3 d5 g2 f5 Rh7 d6 Nd7 h5 Nh6 e6 Ra5 e7 Nb6 d7+ Kf7 e8N Ke7 Nf6 Nc4 Nh3 g1R Bb2 Qh8 d8Q+ Kf7 Nf4 Ra7 Nd2 Bd7 c8N Rg4 Nb3 Nd2 Nc1 Ne4 Nb6 Ng8 h6 Rb7 Ka5 b4 Qg1 Nc3 Qc7 Ke7 Ng2 Rh4 Qf4 Kd8 Qfh2 Rd4 Rb1 b3 Ba1 Rd2 Rb2 Bc8 Nbd7 Rb4 Qc5 Rc2 Rd1 Rd2 Qcg1 Rc2 Ne4 Nf6 Ng5 Ne8 f6 Rd2 Rb1 Rb2 Rd6 Qg8 Qf4 Rh8 h7 Qc4 Qfh2 Kc7 Nb8 Bg4 Nd7 Kc8 Qe1 Kd8 Qeg1 Rf8 h8Q Rf7 Nb8+ Rd7 Nh7 Qd3 Re6 Rdd4 Nd7 Qc4 Rd6 Rd1 Nd3 Re1 Rd1 Rf1 Rd2 Rfb1 Nc1 Qd3 Rd1 Qb5#
6R1/1npR1N2/1k2bpN1/R1p1b3/3P2r1/N1Q1B1pR/p1PQK1Pn/rn6 w - - 0 1 legal: proof: f4 b5 a4 Bb7 f5 Ba6 e3 Nh6 f6 exf6 axb5 Qe7 Bc4 Qd8 Bd5 Bc8 Bc6 Ng8 h4 dxc6 e4 g5 e5 g4 e6 Qd5 exf7+ Ke7 Ra5 Qc5 Ra1 Qg5 hxg5 Kd7 b4 h5 d4 a5 b6 g3 g6 a4 g7 c5 b7 Kc6 b5+ Kb6 Rh2 h4 Be3 a3 Ra2 h3 Ke2 Be6 Qd2 Rh4 Nf3 Bd6 f8N Nc6 Ne5 Nh6 g8R Ng4 Nf7 Na5 b8Q+ Nb7 Ng6 Be5 Rd8 Ra7 Rd7 Ra8 Rh1 Nh2 Qc3 Rg4 Qh8 Nf3 Qh6 h2 Qg5 Nd2 Qf4 Ka7 b6+ Ka6 Re1 h1N Rf1 Na5 b7 Kb6 b8R+ Nb7 Rg8 Nf2 Rh1 Ra6 Rh3 Ra8 Qd3 Ra7 Nc3 Nb1 Nb5 Ne4 Qc4 Ned2 Qc3 Nf1 Qf2 Nh2 Qfe1 Ra8 Qed2 Re8 Rb2 a2 Na3+ Ka6 Rb4 Re7 Ra4+ Kb6 Nd8 Rh7 Nf7 Rh5 Ra5 Rf5 Nfh8 Rf1 Nf7 Rd1 Nb5 Na3 Rh6 Ra1 Rh3 Nb1 Na3 Bb3 Qcd3 Bd5 Q3c3 Be6
6n1/2bPN2n/1K4R1/2N1P1Bq/Qpp1N1pQ/Q5p1/2PpNnBp/3rk3 w - - 0 1 illegal: No proof kernel
b4k1q/2Pn2bn/2Q1Bpnr/1KP5/2R1QQ2/1n1b2B1/3Q1PN1/r1N2rNn w - - 0 1 legal: proof: d4 b5 h4 c5 dxc5 g5 b4 gxh4 a4 e5 axb5 Nc6 Ra6 Nb8 Rd6 Na6 Rd2 Nb8 Rd4 exd4 Kd2 d5 Kd3 a5 e4 h5 g4 a4 c4 h3 b6 h2 b7 h4 c6 f6 c7 a3 b5 h3 g5 a2 e5 a1N e6 Ba3 e7 Nc2 b6 Na1 g6 Nd7 b8Q Ba6 g7 Rh6 Qd2 Nb3 Qc8 Kf7 e8N Ne7 Nc3 Ng6 Nce2 Bf8 g8Q+ Ke7 Bb2 Bg7 Qe6+ Kf8 Nd6 Bb5 Bc1 Ra1 Nf5 Qe8 Ne3 Ba6 Kc2 d3+ Kc3 d4+ Kb4 Qd8 Ng2 Qe8 Qc2 d2 Qee4 d1N Bf4 d3 Nc1 d2 Bg3 Nc3 Bd3 d1B Qd2 Bf3 Qcb7 Qa8 Qbc6 Qc8 b7 Qa8 Qef4 Ne4 c5 Ng5 Bc4 Nh7 Be6 Bd3 Qce4 Qc8 b8Q Qd8 Qb5 Qb8 Qee2 Ba8 Qee4 Qe8 Qbc6 Qc8 Nge2 Qd8 Rf1 h1R Ng1 h2 Rd1 Ke7 Re1 Qh8 Re3 Kf8 Rf3 Bb5 Rc3 Bf1 Rc4 Bd3 Nh3 Rf1 Ng1 h1N Kb5 Ke8 Bf5+ Kf7 Be6+ Kf8
q2NqkNb/3b2Rr/2Q2n2/PP1B1p2/3r1P2/Kn6/2bqNB2/qQ2B1Bq w - - 0 1 legal: proof: b4 b5 c4 a5 d4 h5 a4 Bb7 g4 Ba6 gxh5 Bc8 Ra2 e6 Rb2 bxc4 b5 e5 Rb4 axb4 dxe5 Qe7 Qd2 Qg5 Qd1 Qd8 Kd2 c5 Kc2 g5 Kb2 d5 f4 f5 h4 d4 e4 d3 e6 g4 a5 b3 h6 c3+ Ka3 d2 e7 c2 e5 c4 h5 b2 h7 c3 h6 g3 Nf3 g2 Bc4 g1Q Nd4 Qe1 Bd5 Na6 Ne6 Qe3 Rg1 Nf6 Rg7 Nc5 Qf1 d1Q Bd2 c1Q Be1 c2+ Nc3 Nb3 Ne2 Qf3 Qg1 Qd7 Nd8 Qcd2 Qh1 b1B Qf1 Rg8 h8B Ra7 h7 Qdc3 Bf2 Qdd2 Qc1 Qdc6 Qb2 c1Q Bg1 Kd7 e6+ Kd6 e8Q Bc2 e7 Bd7 Bf2 Qch1 Qb1 Qfh5 Qg6 Qa8 Qg2 Qf7 e8N+ Ke7 Qe4+ Be6 Qc4 Bd7 Qc6 Rb7 Rg2 Bh6 Rg7 Kf8 Be1 Ng4 Nf6 Qe8 Rg6 Rg7 Ng8 Nf6 Bf2 Re7 Rg7 Re4 Rg4 Nh5 Bhd4 Nf6 h8B Bg7 Bde3 Rd4 Be1 Ne4 B3f2 Be5 Bf6 Ra7 B6h4 Bh8 Bg1 Nf6 Rg7 Bc8 Rg5 Rh7 Rg7 Bd7 Bhf2 Qa1+
1bk1nRR1/1b2PP1B/3R1N2/4qpQ1/2BBbPn1/2q1b2r/2bQ4/r3nK1B w - - 0 1 illegal: No proof kernel
5NQ1/rq2nb1N/qBP1p2N/3bPBPQ/5k2/b1n1Rq2/qNqK4/r4Q2 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h5 g4 Rh7 g6 Rh8 b4 Bh6 g5 Bf8 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 c4 a5 e4 d5 h4 Kd7 e5 Ke6 c5 Kf5 g7 d3 h5 a4 c6 g3 h6 d4 b6 d2+ Ke2 d3+ Ke3 g2 h7 a3 b7 a2 b5 a1Q b6 Ra7 Nc3 Qa2 Qa4 d1Q Qh4 d2 Qe1 Qc7 Qe2 Be6 Nd5 Nd7 b8Q Qb7 Nf3 Ndf6 Ne1 Ne4 Nd3 Qdc2 Nb2 d1B Rh3 Nc3 Nf6 g1Q+ Qf2+ Bf3 Bd3+ Ne4 Bd2 Qgd1 Ba5 Bd5 Qe2 e6 Qf1 Ba3 Rg3 Ne7 g8N Qc3 Qf8 Qdc2 Qh6 Q3b3 Qh5 Qa6 b7 Qbb5 b8Q Qbb7 Kd4 Kf4 Nh6 Nc3 Bf5 Rg8 h8N Rc8 Qd6 Rca8 Nh7 f6 Qe1 Bg4 Qd8 Bd1 Re3 Bg4 Qhe8 Bh5 Bb6 Bf7 Qb1 Qae2 Qf1+ Qf3 Be4 f5 Ng6+ Kg3 Ngf8 f4 Re2 Qg4 Re1 f3 Re3 Kf4 Bf5 f2 Qc8 Qf3 Qb8 Qa4+ Kd3 Q4b3 Kd2 Qc4 Qg2 f1Q Qbc8 Qfb1 Qf1 Qca6 Qcd8 Bg8 Qg6 Bf7 Qh5 Qc2+ Ke1 Qab1+ Nd1 Qad3 Nd7 Rb8 Bc5 Qda6 Qg8 Qa8 Ndf8 Qba2 Bd4 Rb4 Bb6 Rd4 Nb2 Q8b7 Qfh1 Rd2 Qg1 Rh2 Qf2 Rh1+ Qg1 Qca4 Kd2 Q4b3 Qg2 Ra1 Qf1 Qc2+
7k/bP1R1bn1/q3b1Bb/r1Q1q2N/1RRp1P2/Q1bP1K2/1n1rN1N1/3q1R2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 Ke2 Kf7 c4 Kg7 f4 a5 g4 h5 d3 e5 g5 d5 c5 a4 b7 a3 b6 e4 g6 a2 c6 h3 c7 h2 Qb3 h4 Qb2+ Qf6 Qd2 b3 Qe3 b2 Bh3 Ne7 Bf1 h3 Bg2 Nbc6 b8R Be6 c8N Qe5 b7 Ra5 Nc3 b1Q Nf3 Qb5 Rab1 a1B Rb4 Qa6 Rf1 h1Q Ne1 h2 Qc5 e3 Kf3 e2 f6+ Kg8 g7 Nf5 Nd6 d4 Na4 Bc3 f7+ Kh7 g8R Bh6 f8Q Ng7 Ne8 Bf7 Nc2 e1B Rd8 Bh4 Rd7 Bd8 Ne3 Bb6 Qfd6 Ba7 Rf8 Rg8 Nf6+ Kh8 Rc8 Qg1 Bh3 h1B+ Ng2 Re8 Nh5 Rg8 Rf2 Qb1 Rf1 Qd1+ Kf2 Be6 Bf5 Re8 Bg6 Rg8 Ne1 Bhd5 Ng2 Bf7 Qe7 Bde6 Rcc7 Qe4 Kg3 Ne5 Rc6 Nc4 Qf8 Bd2 Nc3 Nb2 Ne2 Qe5 Kf3 Be1 Qce7 Bd2 Rcc4 Bc3 Qc8 Re8 Qc6 Rc8 Qa4 Rcc5 Qb3 Ra2 Qa3 Ra5 Qc5 Na4 Rb1 Rd2 Rbb4 Nb2
Qr3n2/QpK3N1/1P3R1q/2k2PN1/q1P3bR/bB2nR1N/r6r/rb4Nr w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 c5 gxh5 Na6 d4 cxd4 b5 Nb8 Bd2 Nh6 Bc3 Ng8 Bb4 axb4 Ke2 d5 Kd3 Kd7 h4 Kd6 f4 e5 a4 g5 h6 g4 h5 g3 f6 b3 f5 b2 h7 g2 f7 Nh6 a5 Qg5 a6 Bd7 a7 Bc6 b6 Kc5 Nd2 b1B Ndf3 Nd7 Ra3 Rb8 a8Q Ng4 h6 Ne3 Nh3 g1R Qe2 Bd6 f8N Rg2 Nfg1 Rh2 Bg2 Rg8 h8N e4+ Kd2 d3 Kc3 d2 h7 d1Q Qea6 Qdg4 Nf7 Qh6 h8R d4+ Kb3 d3 Nfg5 d2 Q6a7 d1R Nfe6+ Kd5 c3 Nf8 Ng7 Kc5 Bf3 Rdd2 Bd1 Ra2 Bc2 Qd1 c4 Be7 Rh7 Rh8 Kc3 Be8 Ba4 Bh5 Bb3 Rhe2 Rh2 Bg4 Rg2 Reb2 Rd2 Ra1 Rd6 Rba2 Rf6 Qd7 Nf4 Qa4 Nfh3 Qg6 Rh4 Qh6 N5f3 Nf1 Nfg5 e3 Bc2 e2 Bb3 Rc2+ Kd3 Ne3 Ke4 e1R Ke5 Rca2 Ne2 Rh1 Neg1 Nh7 Ke6 Qa5 Kd7 Nf8+ Kc7 Qa4 Bd1 Kd4 Rc3 Ba3 Bb3 Kc5 Rc1 Rd8 Rf1 Rdd2 Rf3 Rdh2 Kb8 Nd7+ Kc7 Rb8 Rf1 Nf8 Rf2 Qe8 Rf3 Qa4
1nrn3B/Qq2R1r1/r2n4/1p1b3B/1P1Nq1R1/8/RPnPnB2/bk3KQB w - - 0 1 illegal: No proof kernel forced: bxDB
1q3R1N/7Q/NpNnn1Pb/1N2brk1/1P4P1/1b3QqB/bR6/1rbnKQ2 w - - 0 1 legal: proof: h4 d5 e4 f5 c4 fxe4 cxd5 a5 b3 g5 hxg5 a4 Bb2 a3 Qf3 axb2 Qh5+ Kd7 Qd1 Ke8 f4 Kf7 d4 Kg6 a4 h5 g4 c5 d6 e5 a5 c4 d5 c3 a6 b6 a7 e3 b4 e2 d7 c2 d6 c1B Ra4 h4 Bh3 e4 Ra1 Nh6 Ra4 Nc6 Ra3 Nd4 Rh2 Nf7 Nc3 b1B Nf3 Ba2 Nb5 Ne6 Nfd4 Rh5 Nc6 Bh6 Rf3 Qc7 d8Q Qb8 d7 Nd6 Qe7 Bb7 Nd8 Bbd5 Nc6 Bdc4 d8N Bcb3 Bf1 h3 Nf7 Bb2 Rhf2 h2 Bh3 h1N Qa1 Be5 f5+ Kg7 f6+ Kg6 Rg2 Nf2 Rf4 Nd1 Qc3 Qc7 Qf3 Rh8 a8N Qb8 Nac7 Rh7 Kd2 e1B+ Ke2 e3 Na6 Bf2 Qa7 Bg1 Ke1 e2 Qd7 Be3 Qf1 Rg7 Rh2 Bc1 Nh8+ Kh7 Qb7 Rc7 f7 Kg7 g6 Rf5 Qf3 Kf6 f8Q+ Kg5 Rg2 Rc8 Qh7 Rc7 Na5 Rc2 Nc6 Rb2 Qf1 Rb1 Rgf2 Bc4 R4f3 Bd5 Rb3 Bc4 Rb2 Bcb3 Qff7 Nd8 Qd5 Ne6 Qf3 Nc5 Qc3 Rf7 Rf6 Ne6 Qcf3 Nc3 Kf2 e1Q+ Kg1 Nd1 Rf4 Rg7 Rf8 Rf7 Kg2 Rf5 Kg1 Qe4 Kg2 Qf4 Kg1 Ne3 Kf2 Nd1+ Ke1 Qg3+
3B1Q2/1N5K/1qn1k1Nq/r3p1Rn/1qq3r1/1Pb5/N2QPR1P/Rbn2Nq1 w - - 0 1 illegal: No possible last move
1B1n1n1b/Pb1B4/BN2rq2/k2p2r1/2K3n1/4PQ1N/r2P1nB1/1qn1QNR1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 b4 axb4 Ra3 Ra6 Re3 Ra8 Rb3 cxb3 h4 b5 c4 g5 c5 f5 c6 f4 e6 g4 e7 g3 a5 g2 c7 b2 h6 d6 h5 Kd7 e3 Kc6 Ke2 f3+ Kd3 f2 e8B+ Nd7 a6 Kb6 h7 b3 h6 b4 Bh5 Bg7 Rh4 Nf8 Ne2 g1R Be8 Rg5 Nbc3 b1N Ba3 b2 Kc4 b3 Ng3 Ne7 Rg4 Bb7 Bd7 Nc6 Qe1 Qe7 Bh3 f1N Bb4 Rg8 h8N Nh2 h7 Nd8 Ng6 Bf6 Nf4 R8g6 h8Q Rh6 Rh4 Ng4 Nf1 Be5 Qh7 Re6 Qf7 Bh8 Bg2 Ra7 Qf5 Qf6 Rh1 Ra8 Nh3 Ra7 Ne2 Nc3 Nef4 b1N Rg1 b2 Qd5 Ra8 Qf3 Ne2 Bc3 Nc1 Bd4+ Ka5 Bc5 Nc3 Nd5 b1Q Ba7 Nd1 Bb8 Ndf2 Nb6 Bc6 c8B Ra7 Na4 Rb7 a7 Rb2 Nb6 Ra2 Ba6 Be4 Bdb5 Bb7 Bd7 d5+
Kn2rnb1/2BB1Q1q/p1nRQ3/1PBN2b1/q3PnnQ/8/P1R2q2/1k1r1Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 e5 dxe5 g6 f5 Bh6 Na3 Bg7 Nc2 Bf8 Ne3 Na6 fxg6 Nb8 g5 Be7 Ng4 hxg4 Bg2 Ba3 Bf1 Bf8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 c5 b4 g3 h4 a6 e3 c3 b5 g2 e6 c4 e7 c2 e8Q c3 h5 Be7 h6 Nf6+ Kc4 Ke4 g7 d5+ Kb3 d4 Ka4 d3 g8Q d2 h7 Qd7 Bb2 c1N Ka5 c2 Kb6 Nd3 g6 c1N g7 Ne2 Qb1 d1Q Qc1 Nd4 Ba3 Qa4 Qb1 Ndc6 Ne2 g1Q Rh6 Qf2 Bh3 Qdf5 Kc7 Be6 Kb7 Nfd7 Bc5 Bg5 Nf4 Nf8 Qf1 f6 Nd5 Nf4 Qh5 Ra7+ Kb6 Rd7 Qh4 Qg6 Rc1 f5 Qf7 Rd8 Qb7 Bg8 Qf7 Rd6 Kb7 Rd7+ Nc7 Rd1 Rc2 Qh5 Ka8 Qg6 Re2 Kd3 e4 Qh5 Rd6+ Kc3 Re1 Kc2 Nd5 Kb1 Bg4 N4g6 Bh3 f4 Bd7 f3 Re2 Nf4 Rd2 Qe3 Rc2 f2 Qfh3 f1N Qf3 Nh2 Qf1 Ng4 Qe6 Bf7 g8Q Qed4 Qgg6 Rg8 h8B Qh7 Be5 Qf2 Qgf5 Rg6 Qff6 Bg8 Qff7 Rg7 Bc3 Rg6 Ba5 Rh6 Bc7 Rf6 Qf5 Re6 Q5f6 Re7 Q6e6 Re8
7q/3n3n/b1kqN1Qp/1r2RB1P/Qn2KqQ1/1N1PB3/1br3P1/2Nn2bQ w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 d5 cxd5 g5 Ra3 g4 Rf3 gxf3 b3 Bf5 b4 Bc8 Kf2 Kd7 h4 c5 e4 a5 d6 f5 d3 c4 h5 h6 e5 a4 b6 c3 b7 a3 b5 a2 b6 a1B e6+ Kc6 d7 c2 e7 Nf6 e8N Ra5 Rh2 Nh7 Ng7 Rb5 Be3 c1N Be2 Bc5 Rh1 Na2 Nd2 Bb2 Nb3 Nb4 Ne6 Qe8 d8Q Nd7 b8Q Ba6 b7 Bcd4 Kf1 f2 Bg4 Rg8 Ke2 f1Q+ Kd2 f3 Qh4 f2 Qbg3 f4 b8Q f3 Qbf4 Qf8 Qf7 Qd6 Ne2 Rc8 Qg6 Bc5 Qc2 Qa1 Bf5 f1Q Q3g4 f2 Nec1 Rc7 Rg1 Rc8 Qh1 Rc7 Na2 Qfc1+ Ke2 f1N Kf3 Rc8 Ke4 Qd2 Bd4 Ne3 Re1 Nd1 Nac1 Qg5 Be3 Qf6 Qb1 Qh8 Re2 Qa4 Qa2 Ba7 Bg5 Bg1 Be3 Kb7 Qa1 Rc2 Qa3 Kc6 Qa2 Qa5 Qa4 Qac7 Ba7 Ndf8 Kf3 Qb6 Re5 Qf2+ Ke4 Nd7 Be3 Qf4+
1N6/Qb1r1b2/nb2PRQK/1N1Q2Pr/q2Rp2N/q3P1n1/4B2q/r1bN3k w - - 0 1 illegal: No possible last move
1b1B4/Rn4P1/2bQ1nNk/2KNQ2p/6rn/3bR2P/2P1r1Q1/q1R1qRnq w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g6 f6 Bh6 Bd3 Kf7 Be4 Ke6 f5+ Ke5 f7 Kd6 f6 Bf8 Bf5 gxf5 Ke2 Ke5 Kd3 a5 Kc4 h5 b4 d5+ Kc5 f4 g4 d3 b6 d2 h3 a4 b7 a3 g5 Kf5 g6 Kg5 g7 e5+ Kb5 e4 Qe2 d1N Qe3 d4 Qe1 a2 Qh4+ Kh6 Kc4 d3 b5 e3 b6 f3 Ne2 f2 Qg3 f1B Nd2 Qe8 Ba3 Bd6 f8R Nc6 b8R Ra4+ Kd5 Bb7 f7 Rg4 Ne4 d2 Rd8 Bb8 Be7 Nf6+ Kc5 Nc3 Qg2 d1Q Nf4 e2 Ng6 e1N Rd3 Nf3 Re3 Ne2 Bd8 Neg1 Nc3 Bd3 Nd5 Na5 Rc1 Bc6 b7 a1Q Rg8 Bcb5 f8Q Nh4 Qd6 Bc6 Rf8 Qe4 Rf7 Qe1 Re7 Re8 Rc7 Ne2 Rf1 Ng1 Re7 Qf4 Rf7 Qh2 Rd7 Qh1 Rf7 Bc7 b8Q Re5 Qb5 Bb8 Ra7 Ree4 Ref3 Re2 Re3 Qg3 Qb2 Qe1 Qbe5 Nb7+
K1R2N2/PbN1p3/2r1qBq1/3nn1b1/PQ1qP1nk/N1RQ1R2/1q4Rr/3r4 w - - 0 1 legal: proof: c4 a5 b4 f5 bxa5 d5 cxd5 h5 g4 hxg4 Bh3 g3 Bg4 fxg4 Qc2 g2 Qb3 Nd7 Qd1 Nb8 h4 Kf7 d4 Kf6 Kd2 b5 Kd3 g5 Ke4 c5 a4 c4 f4 g3 f5 g4 d6 b4 Kd5 c3 e4 c2 a6 b3 a7 b2 d7 Rh6 h5 Rh8 h6 Nc6 h7 Bh6 Rh3 Qb6 d8Q Qb4 Ne2 g1R Qd2 g2 Raa3 g3 Nf4 Kg5 f6 Qb6 f7 Rd1 f8N g1Q Rf3 g2 Na3 b1N Bb2 c1Q Qb4 Ba6 N4e6+ Kg4 Ba1 Rc8 Nc7 Qb2 Rc3 Bf4 Rhf3 Ne5 Qd7+ Kg5 Qdb5 Qe3 Qd3 Qe6+ Kc5 Qed2 d5 Nh6 d6 Kh4 d7 Bg5 d8R g1Q+ Rd4 Qgg2 Rd6 Nhg4 Kb6 Qf5 Rg6 Qe6+ Rc6 Nc3 Rg8 Bb5 Kb7 Nd5 Rc3 Qe3 Rg7 Qd4 Rg6 Rd8 Rg7 Rd6 Ka8 Ba6 Rg8 Rc6 Rg7 Rg8 Rg6 Rg7 h8R+ Rh7 Nd7 Qgd2 Rc8 Qf4 Nf8 Qff5 Rg3 Qff6 Rg2 Qg7 Rf6 Qg6 Rf3 Rf7 Re3 Rf2 Rf3 Rc2 Rgg3 Rh2 Rg2 Qbf2 Bb2 Qc2 Ba1 Qb2 Qd2 Qb6 Ne8 Qa2 Rce3 Nd3 Bf6 Qd4 Nc7 Nde5 Rc3 Qb2 Qd3 Bb7+
2BbQrN1/2QKP1P1/b2p2NQ/8/4b1R1/nknPqr2/q2r1R1n/R2Rb3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 a4 exf4 Ba3 Bb7 axb5 Be7 b6 Bf8 b5 Bc8 Bb4 cxb4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kd4 h5 e4 a5 c4 f3 g4 f2 c5 a4 c6 h4 c7 b3 e5 b2 b7 h3 b6 d6 g6 a3 g7 a2 g5 f4 g6 h2 Qf3 Ne7 g8R Na6 b8R Nd5 g7 Nc3 b7 Be7 Nh3 Nb4 Rf8 Qe8 Qh5 f3 Ba6 Bd8 Rd1 f1R d3 h1B Rf7 f2 Nd2 b1Q Ne4 Rf8 Nf6 Be4 Ng8 Nc2+ Kc4 Qe7 Qh6+ Kd7 e6+ Kc6 Nf4 Na3+ Kd4 Kb6 Rf6 Ka5 Ng6 Ka4 Rf3 Qg5 e7 Kb3 Rg3 Rf3 Rg4 Ra7 Ra8 Qgc1 b8Q+ Bcb7 Bb5 Ba6 c8Q Qbb2 Qbc7 Rb7 Rb1 a1B Bd7 Qf4 Rbc1 Qa2 Rc2 Rb5 Rcd2 Rf5 Ra7 Rf8 Qa8 Rg1 Bc8 f1N Rf2 Rg2 Qac6 Bb2 Qe8 Bc1 Ra8 Bd2 Ra7 Be1 Ra8 Na4 Ra7 Nh2 Ra8 Bf5+ Kd5 Nc3+ Kc6 Be4+ Kd7 Qe3 Rf1 Rd2 Rf2 Bc4 Ra5 Ba6 Ra4 Qb1 Ra5 Nab5 Ra2 Na3 Ra1 Qa2
kqN5/nRQr3p/2b1N3/rP6/n2bqB1q/1Rbq1N1P/4P1QR/2K1Rn2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 g5 g3 g4 Bg2 Nc6 Be4 Nb8 Bf3 gxf3 d4 Kd7 Kd2 c5 b4 Kc7 g4 Kb7 g5 a5 d6 f5 g6 f2 g7 f1Q d7 f3 d5 f2 b6 c4 h3 c3+ Kc2 f4 d6 f3 b5 a4 Qd3 a3 Qe4+ Nc6 Bh6 a2 Bd2 Nf6 g8N Nd5 Qe7 Qe1 Qg5 f1N Na3 f2 Nf3 Na7 Bf4 Bg7 Qg6 Bd4 Rd1 a1B Kc1 c2 Qg2 Nc3 Ne7 Na4 Rh2 Qb4 Re1 Bac3 Qg3 Qe8 d8R Bd7 Qg2 Bc6 Nc8 Qe4 d7 Rf8 Re8 Rf7 d8Q Rd7 Re5 Kb8 b7 Qc4 Qb6 Qcd3 Qa5 Nd2 Qb6 f1Q Qc5 Qf2 Qc4 Kc7 b8R Qh4 Qf7 Nf1 Rc5+ Be5 Rc4 Bd4 Rb4 Bc3 Rb3 Bd4 Rb6 Bc3 Ra6 Kb7 Qfg7 Bed4 Qf7 Rb8 Rb6+ Ka8 Rb7 Qe8 Qc4 Qee4 Rc7 Rb6 Rb7 Ra6 Qc5 Ra5 Qb6 Bh8 Qc7 Bcd4 Nb1 Bc3 Ng5 Bhd4 Nd2 Qe7 Qd6 Bd5 Nb1 Qee4 Nd2 Bb4 Ndf3 Nc3 Kb2 Na4+ Ka2 c1Q Ne6 Qc7 Qc6 Qb8 Qc7 Nc3+ Kb2 Bc6 Kc1 Na4 Be5 Bbc3 Bd6 Ng3 Bf4 Nf1
1BB3k1/1RR3n1/r2rPP2/bnQn1R1p/n1B3RP/1b1q4/5QN1/1K1bnn2 w - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 e5 a4 exd4 axb5 d3 Nc3 c6 Nd5 cxd5 Ra6 d4 Ra3 Kf7 Ra1 Ke8 Kd2 Kf7 b4 g5 h4 d5 e4 h5 f4 a5 c4 g4 f6 g3 f5 g2 e5 a4 c5 a3 b6 a2 b7 Nh6 b5 Nc6 b8Q Be6 b6 Na7 c6 Kg8 c7 Nb5 c8B Ra6 Nh3 g1N b7 Ne2 Qa8 Nec3 b8R Na4 Qf3 Bb4+ Kd1 d2 Kc2 d1B+ Kd3 Ba5 Qf2 Qd6 Rb1 a1N Qc6 Nc2 Rb4 Ne1+ Kd2 d3 Nf4 d4 Qc5 Qd8 Ng2 Beb3 e6 Rh7 Rg1 Rd7 Rb7 Rdd6 Rc7 Qd7 Ba3 Qd8 Kc1 d2+ Kb1 d3 f7+ Kh7 Rg4 Bf3 Ra7 d1N f8R+ Rd7 f6 d2 Bb2 Nf5 Qfe3 Ng7 Rf7 Kg8 Be5 Be2 Qf3 Ne3 Bb8 d1N Rb7 Rd2 Rfc7 Ndc3+ Ka1 Bed1 Bc4 Rd5 Rf1 Rd7 Rf2 Nf1 Qg3 Rd3 Rf5 Qd6 Qf3 Qg3 Qf4 Rdd6 Qff2 Nd5 Kb1 Qd3+
N1r5/R7/1Q5p/r1PQn2P/5nKP/bbk1Nnn1/4qrBN/1R1r1nQN w - - 0 1 illegal: No proof kernel
4k3/2QpBR2/bqQP1rN1/bbNP4/1K6/1nR1b1b1/2r2PQ1/qRn3Qb w - - 0 1 illegal: No possible last move
2nN2QR/1q1pP1K1/qrNP1q2/1k6/2nR4/1q1b2Q1/BP2N1QQ/q1b1r1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 a4 exf4 axb5 Ne7 d5 Ng8 Be3 Rh6 Bf2 Rh8 Bd4 cxd4 Kd2 f5 Kd3 a5 h4 g5 e4 f3 c4 f2 b6 g4 b7 f4 h6 g3 c5 f3 e5 a4 Ke4 d3 Kf5 d2 Kg6 g2 h5 a3 e6 a2 c6 Bb4 h7 Ke7 c7 Kd6 h6 Kc5 Qe2 d1Q Na3 Nc6 b8Q Na5 Nc4 Ra6 Ne5 Ne7+ Kg7 Qb3 Nc6 Re8 h8N Nc4 h7 Bd2 Nf7 Rb6 h8Q Ba6 c8Q Kb5 Rd1 a1Q Qg3 Qc7 d6 Bc1 Qhh2 Qb7 Qb8 Nc8 Rd4 Re7 Qe4 Re8 Ne2 g1Q Bh3 f1Q Nfd8 f2 Qeg2 Qfd1 Bf5 f1Q Bb1 Qdd3 Ba2 Re7+ Kh8 Qf6+ Kg8 Rh7 e7 Rh5 Qa8 Rf5 Kh7 Rf1+ Kg8 Re1 Qb8 Qff1 Kg7 Qdf3 Qa8 Qf6+ Kg8 Kc5 Qh6 Na3+ Nf7 Bb5 Nc3 Qfc4 Ne2 Na7 Kh7 Ba6 Qag8 Nc8 Nfd8 Bb5 Rh2 Qca4 Rh3 Qaa6 Qhh4 Bc4 Q3h2 Kb5 Q4g3 Qf5+ Kh8 Bd3 Kg7 Nc4 Rh8 Qf6+
1QQ1Q3/nbr1Nr1Q/1rBRqP1n/6n1/nRrb1k2/p2P4/P4K1n/3B2B1 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 f5 exf5 h5 g4 hxg4 Nc3 Na6 Ne4 dxe4 Bb2 Nb8 Ba3 Qc7 Bc1 Qd8 c4 Kd7 f4 b5 h4 e5 c6+ Kd6 h5 a5 d3 g5 f6 b4 h6 e3 c7 e2 f7 a4 f5 e4 f6 Ke5 c5 b3 c6 b2 h7 b1R Qd2 a3 Qc2 g3 Rh5 g2 Rh2 g4 Rh6 g3 Rh1 Ra4 Qc4 Qd6 Rh6 Bb7 c8B Rb6 c7 Nc6 Qa6 Na7 Rh2 Rc4 Be3 Nh6 Qa4 Qe6 Qe8 Bc5 f8Q Bd4 Nh3 g1N Nf4 g2 Rc1 Nh3 Bd7 g1N c8Q Ng5 Kf2 e1R Bc6 Ne2 Nd5 Nc3 Rh4 Na4 Ne7 Rd1 Rc2 Rc1 Be2 Rg8 h8Q Rg7 Qh7 Rf7 Rb2 R1c3 Rb4 Rc2 Kf1 R2c3 Bf2 e3 Bd1 e2+ Kg2 Rc1 Bg1 e1N+ Kg3 Nef3 Qfh8 Bc3 Kf2 Nh2 Rd4 Bb2 Rd6 Kf4 Be4 Rc7 Bc6+ Rc4 Qb8 Ba1 Qec8 Bc3 Qhe8 Bd4+
n4N1B/1nrQ4/1n1P4/bRN3p1/1P1nN1br/1rqQn3/3QR1P1/1K1N1kr1 w - - 0 1 illegal: No proof kernel
R2Q1r1Q/2nN1r1p/3R1n2/3B2n1/r1bP1N1r/1Nk1n1NP/4Kb1P/1Rqr4 w - - 0 1 illegal: No proof kernel
2nR3B/1P4r1/2rP1r2/2RQ1n1q/bQB1pN2/bR2B2r/bKn1P2n/1B3k2 w - - 0 1 illegal: No possible last move
Br1n1bK1/2p2QPN/bR4r1/k1bnN2B/3N4/rPP1q3/8/nr1Q1bBB w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e6 d4 e5 Ra3 Rh7 Rg3 Rh8 dxe5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kf2 f5 e4 d5 h4 Kd7 b6 Kc6 h5 a5 g6 a4 b3 f3 Ke3 g3 Kd4 f4 e6 f2 Ke5 f3 c3 a3 e7 d4 e8B+ Qd7 b7 Kb6 h6 g2 h7 a2 g7 a1R Be3 Qd8 Nd2 Qd7 Ne2 g1B Nc4+ Kb5 Bg2 f1N Bh5 d3 Nd4+ Ka6 Rh2 f2 Bh1 Ne7 Kf6 d2 Kf7 Ra5 e5 Nbc6 b8Q Qh3 e6 Nd5 e7 Ra3 Ne5 Ka5 e8B Ra6 Bd7 Rg8 h8N Qg3 Nhg6 Nd8+ Ke8 Rf6 Bc6 Ba6 Ba8 Qf3 Qc8 Qh3 Qd7 Rh8 Qb1 d1R Qf7 Rc6 Qc2 Rb1 Qd1 Rb6 Rg2 Rb8 Rg4 Rh6 Rf4 Qg3 Rf6 Qf4 Rb6 Qg5 Nh4 Rg6 Nhf3 Qf4 Ng5 Qf3 Bc1 Nfe3 Nh7 Nc2 Be3 f1B Bf2 Na1 Be3 Bh2 Bg1 Bc5 Rd6 Qf2 Kf8 Qe3 Kg8 Bg3 Rb6 Bh2 Nd7 Bhd6 Ne5 Bf8
Q1br2N1/1Q4R1/1p2N1rN/1PQN3q/4P2K/rb1k2r1/nbRqn2P/2b3B1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 b4 exf4 Bg2 a4 cxd5 Bd7 Be4 Bh3 Bc2 Bc8 Bb3 axb3 Kf2 Kd7 d4 Kd6 e4 c5 a4 f5 b5 g5 h6 b2 h7 c4 a5 f3 Kg3 c3 a6 f4+ Kf2 c2 a7 b6 Ra2 g4 Qf1 Bg7 Qd1 Nc6 Nc3 b1B Be3 c1B Qc2 Nh6 Nge2 Nf5 Rg1 Nb4 Ng3 Qe8 Rb2 Na2 Nh5 Ng3 Nf6 Ne2 Ng8 Qh5 Rg3 Bd2 Qc1 Bc2 Qg1 Bb3 Rc2 Bc1 Rg2 Kd7 d6 Ke6 d5+ Ke5 d7 Bf6 d8Q g3+ Kf1 f2 d6 Bg7 d7 Bf6 Nd5 Bg7 Bd2 Kd4 Be3+ Kd3 Qe7 Bd4 d8N Bdb2 Nh6 Rg8 h8N Rg6 Nh8f7 Rb8 Qb7 Ra8 Qh1 Rb8 Rg1 Ra8 Kg2 f1R Bd4 Rd1 Ne6 Rd2 Ng8 f3+ Kf1 f2 Kg2 f1R Nfh6 Rf4 Be3 Rfg4 Kf3 Rd1 Qg2 Rd2 Qf2 g2 Bd4 Rb8 a8Q Rd1 Rh1 g1Q Be3 Qf1 Rg1 Qe1 Rg3 Qd2 Kg2 Qf5 Kh3 Re1 Rg2 Rg3+ Kh4 Qe5 Qf5 Rf1 Qf8 Rff3 Bg1 Qh8 Qc5 Qe5 Qaa6 Ra8 Qaa3 Rf8 Qaa7 Rd8 Qab8 Ra3 Q8a8 Re3 Rg5 Rg3 Rg4 Rf6 Rg7 Rfg6 Qf8 Qf5 Qc5 Qh5+
r1qbb1Q1/4R3/nBbrPp1P/qn1R2n1/2N2PQ1/3nN3/N4QK1/1kb2N2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Na3 Ke5 Nb1 Ke6 Kf1 Kf5 f4 Ke4 h4 c5 b4 a5 b6 g5 h5 f6 b7 a4 b5 a3 b6 c4 e3 d4 h6 a2 Qf3+ Kd3 e4+ Kc2 e5 c3 e6 d3 Rh2+ d2 Qg2 g3 Ne2 d1B Bb2 g4 Ba3 Ne7 Nd2 Nf5 Bc5 Na6 b8Q Be7 b7 Nd4 Rh5 Nb5 Nc1 Bf3 Bb6 Bc6 Qf2 g2+ Kg1 Qf8 d8Q B8d7 Rd5 Be8 d7 Rh7 Rb1 a1Q Na2 Rf7 Kh2 g1B+ Kg2 g3 Rd1 Kb2 Nf1+ c2 Qa7 Qh8 b8N Qf8 Qf3 c1N Qg4 Be3 Qc8 Qh8 d8N Kb1 Nb7 Bd8 Nd6 Rd7 Nc4 Rd6 Nd7 Qf8 Rd4 Nd3 Nde5 Bc1 Nce3 Qc3 N5c4 Qa5 Kh1 g2+ Kh2 g1N Kg2 Bc7 Qd8 Nf3 Qc8 Rd8 Rd7 Qc5 R4d5 Ng5 Re7 Rd6 Qcb8 Bed7 Qg8 Bd8 Bc7 Be8 Qb6 Qcb4 Qd4 Qc5 Bb6 Ne5 Qd2 Nd3 Qf2 Bcd7 Qgh4 Qc8 Qg4 Bc6
5Kb1/PQ5Q/3Bnk2/1pQnnqbP/2q4q/RPq2R1Q/3r1N2/2r2nRN w - - 0 1 illegal: No extended proof kernel
n3bb2/3qNp2/N2QPP1q/1rb3Rr/2q3nk/KR1pnP1N/BN6/1Q4R1 w - - 0 1 illegal: No proof kernel
BRq1R2R/qb1k2r1/P3r1Q1/n3Q1N1/Pp5B/3pq1b1/n2Pr1BR/3Kb3 w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 bxa5 c6 Nc3 c5 Nd5 Nf6 Nb4 cxb4 Ba6 Ng8 Bc4 Bg7 Bf1 Bf8 c4 h5 f4 d5 a4 e5 g4 b5 a6 h3 c5 h4 f6 h2 f7+ Kd7 g5 e4 f5 b3 g6 b4 f6 e3 g7 d4 Ne2 b2 Ng3 b1R Nh5 d3 Qe2 h3 Ng3 Rh6 Ne4 Bb7 Ng5 Bd6 f8Q Nc6 f7 Nf6 g8R Na5 Bg2 Ra7 Kd1 Nd5 Qg7 Re6 Re8 Bg3 Qg6 Qb8 f8R Qc8 Rhf1 h1Q Rh8 Qh2 Rff8 Qg1+ Qe1 h2 c6+ Kd6 c7 h1Q Rh2 Kd7 Rfh8 Qf2 Ra3 Qhg1 Rc3 Rb3 Bb2 e2+ Kc1 Qb6 Rc4 Qgf2 Bf6 Nc3 Rc5 Qe3 Rb5 Bd6 Qg3 e1B Qe5 Na2+ Kd1 Rc3 Be7 Rc4 Bd8 Rf4 Be7 Rf2 Bd8 Qa8 Bf6 Re2 c8B+ Kc7 Bd7 Qc8 Bdc6 Qbc5 Bce4 Kd7 Rb6 Bd5 Rb8 Bb7 Qef5 Bdg3 Qe5 Bc6 Bd5 Rc7 Be7 Qa7 Bdf3 Bb5 Ba8 Bc6 Ne4 Bb7 Bh4 Rcc6 Ng5 Re7 Rh6 Rce6 Rhh8 Rg7
r1N1n3/bB1R1q2/nKp1rQR1/1RPP2b1/bQq1NP2/n1p5/k7/N2R1q2 w - - 0 1 legal: proof: h4 f5 e4 d5 exf5 b5 c4 g5 a4 gxh4 axb5 d4 b3 Kf7 Bb2 Ke8 Bc3 dxc3 Qg4 c6 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 b6 h3 b7 a4 b4 h2 f6 a3 f7 a2 b5 h4 b6 h3 Qg7 Qd7 g4 Nf6 g5 Ne8 g6 Rh6 Ne2 e6 Rg1 h1Q d3 h2 Na3 Qg2 Rc1 a1N Nc2 h1Q Ng3 Qe2 Bh3 Na6 b8Q+ Qc7 b7 Qhg2 Qh8 Qgf1 g7 Be7 f8N Bd8 Rg2 Bg5 g8R Rf6 Rg6 Bd7 Ne3 Bc8 Nd7 e5+ Ke4 Qa2 d4 Nc2 Nb6 Na3 Nc2 Bg4 Na1 Bd1 Rd2 Ba4 Bc8 Re6 Rcd1 Qb3 Ke3 e4 Qf6 Qb4 Rh2 Qb3 d5 Kc5 Rh7 Kb4 Kd4 e3 Ne4 e2 Rhg7 Qe7 Rf7 Qf8 Rd7 e1B Qd6+ Nc5 b8R Qf7 Qf8 Beh4 Q6g7 Bd8 Qf6 Bg5 Ba6 Bc7 Nc8+ Bb5 Rb6 Bb8 Bb7 Ka4 Qd6 Na6 Qf8 Nac7 Kc5 Qa2 Nc2 Kb3 Na1+ Kb2 Q8e7 Qb3 Qf8 Ba4 Rb5 Ka2 Kb6 Na6 Qc5 Qb4 Qcd4 Qb3 c5 Qb4 Qc4+ Qb3 Qb4 Qbc4 Rb1 Qd1 Rc1 Qdf1 Rd1 Ba7+
b1q5/1kBQ2P1/3p2q1/R2rnp2/qnr1PQB1/R2P1nb1/5R2/b1KBN1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 a4 exf4 Nc3 Ne7 Nd5 Bb7 axb5 Ng8 b6 Ba6 b5 Bc8 Nb4 cxb4 c4 a5 g4 h5 b7 h4 g6 a4 g5 f3 g7 b3 c5 a3 b6 a2 e3 h3 g6 h2 c6 b2 c7 b1Q Qe2 f2+ Kd1 Na6 b8R Nf6 g8Q Nb4 b7 Ng4 g7 Ra5 Ra8 Qg6 b8B Rh4 d3 Bb7 c8B Ne5 Qf3 Rd5 Be2 f1N Qf4 Nd2 Ra3 Ba8 Bc7 Ndf3 Qh7 d6 Bg4 Be7 Bb2 f6 Bd4 Qc8 Kc1 f5 Qg8+ Kd7 Qf7 Kc6 Bd1 Bg5 Qd7+ Kb7 Bb6 Rh5 Bd4 Bh4 e4 Bg3 Bf2 Rh8 Be3 Nd4 Nf3 Rg8 Nh4 Ndf3 Rf1 h1Q Ng2 Qg1 Bb6 Qd4 Rf2 Re8 Ne1 Rg8 Rb1 a1B Ra5 Rh8 Rb3 Qc4+ Rc3 Qa2 Bc5 Qa4 Ra3 Rh2 Rf1 Rb2 Bg1 Rb3 Rf2 Rc3+ Kb1 Nc2 Kc1 Rc4 Rb3+ Nb4+ Rc3 Nc2 Ra3 Nb4+
2q2r2/pkr2np1/R4nNP/5bB1/1B1q4/BnPr1bPB/Nb2Q1NK/7Q w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 b4 h5 g3 h4 f3 h3 Ra6 Qc7 Re6 Qb6 Re2 Qd8 Rg2 hxg2 Kf2 e5 h4 d5 f6 Kd7 h5 Kc7 h6 d3 f4 d4 b6+ Kc6 f7 e4 b5+ Kb7 f5 d2 f6 d3 Nf3 g1R Nc3 Qe7 Na2 Qe8 c3 Ba3 f8B Bb2 f7 Nc6 Bh3 Ne5 Bb4 Nf6 f8N Nf7 Ne1 Bf5 Ng2 Qc8 Ng6 Rf8 Qe2 d1B Bg5 d2 Ba3 e3+ Kf3 Kb8 b7 Kc7 b8B+ Kb7 b6 Re1 N2h4 Rf1+ Kg2 Rf3 Bbd6 Rb8 Qd3 e2 Kh2 e1N Qe2 Nc2 Ng2 Rd3 Bdb4 Nd4 Rg1 Nb3 Rf1 Ka6 b7 Kb6 Rh1 Ra8 b8Q+ Ka6 Qee5 Bf3 Ra1 d1Q Qe2 Qd2 Qbe5 Kb7 Qe1 Qf4 Q5e2 Qd4 Qg1 Qe8 Qb1 Rc8 Qh1 Rc7 Nc1 Qc5 Ra2 Ba1 Bb2 Qe6 Ra6 Qd4 Na2 Qc8 B2a3 Bb2
6nN/r1p2RK1/R4qp1/b1R2QQb/8/qnPP1r2/2bR1PQ1/r1qNk2B w - - 0 1 legal: proof: e4 a5 g4 f5 gxf5 d5 exd5 h6 b4 axb4 Bb2 Nd7 Bf6 Nb8 Bg5 hxg5 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 b5 a4 b3 h4 Kb4 d6 g6 d7 b2 h5 e6 a5 g4 a6 g3 d3 g2 f6 Ra7 Nc3 b1Q h6 Qb2 h7 Qa3 Nf3 g1Q f7 Bh6 f8R Bd2 Rf7 Nc6+ Ke4 e5 Bg2 Na5 Ng5 Be1 Qf3 Nb3 Qf5 Qf6 d8Q Bd7 Kd5 e4 Nd1 e3 Ra2 e2 Rh5 Bd2 Bh1 e1R Qa8 Re3 Qb7 Rf3 Qc6 Rb7 a7 Bc3 a8R Ra7 Rd8 Bc8 Rd6 Qe1 Qb7 Qd2 Ra6 Qdc1 Qe5 Bg4 Qf5 Qd4+ Ke6 Qf6+ Kd7 Bd2 Ke8 Bc3 Kf8 Be1 Ne4 Bd2 Rg5 Bh5 Nd6 Be1 Nb2 Kc3 Nd1+ Kd2 Qc6 Rf4 Qg2 Rf3 Rb2 Ke2 Ra2 Ba5 c3+ Ke1 Rd2 Qd8+ Kg7 b4 Qd7 Qe7 Rc5 Qd8 Qf5 Qf6+ Kf8 Na1 Qfg5 b3 Qf5 b2 Qgg5 Qd8+ Kg7 b1B Qg2 Bc2 Qfg5 Nh6 Qf5 Rf8 h8Q Ng8 Qh6 Nb3 Qhg5 Re8 Rf6 Re4 Nf7 Ra4 Nh8 Qd6 Rf7 Qf6+ Kf8 Qab2 Qgh3 Ra1 Qhg2 Qe6 Kg7 Qa3 Qh2 Qc6 Qhg2 Qf6+
br1Q1Q2/3pn3/n7/1QBKQ1R1/p2R1Pn1/1Pqr1rb1/bB1P4/3qN1kB w - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 b3 gxh4 Nc3 b4 Na4 c5 Nb2 c4 a3 c3 axb4 cxb2 b5 Qc7 Ra4 Qa5 Ra1 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 c4 b1B+ Kd5 Kf4 g4 a5 f3 Kg3 c5 Kf2 f6 h5 f7 e5 b6 a4 b7 e4 g5 h3 c6 h2 c7 e3 g6 e2 g7 e1R Bb2 h4 Ba6 h3 Bf1 Ne7+ Kd4 Na6 g8Q Re3 b8B Nc6+ Kd5 Bb7 c8Q Bd6 f8Q Bg3 Bg2 Ba2 Qe6 Qc7 Ba7 Rb8 Bc5 Ba8 Qcd8 Rh5+ Qe5 Rf5 Rb1 Qa5 Qc2 Qc3 Qd3 Rf4 Qb5 Rf5 Ne2 Rf4 Rhe1 h1N Nd4 Rd3 Re4 h2 Rg1 Rf7 Rg4 Rf6 Rg5 Rf4 Re1 Rf7 Re2+ Kg1 Re4 Nf2 Bh1 Ng4 Rf4 Rh7 Re4 Rh3 f4 Rf3 Bg2 h1Q Nc2+ Re3 Rd4 Rd3 Be4 Qf3 Ne1 Qd1 Qdf6 Rh2 Bh1 Rf2 Q6e7 Rff3 Qed8 Ne7+
n1k1KR2/bR1p4/2qrb1Pr/P4p2/3R1PR1/n1NN1B1b/1QN3rr/3r2Q1 w - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 e5 b4 exd4 Ba3 c5 bxc5 Nf6 Bb4 axb4 Rh6 Ng8 Rh2 Be7 Rh1 Bf8 Kd2 b5 Kd3 f5 a4 h5 e4 b3 g4 b4 Kc4 d3 Kd5 b2 c4 b3 f4 h4 a5 h3 c6 h2 c7 d2 e5 Na6 g6 Qe7 e6 Rh6 g5 Qh7 g7 Bd6 e7 Rb8 c5 Rb5 Nh3 Rb7 c6 Rb6 Nc3 b1R Ra4 b2 Bg2 Bb7 c8N Bb8 Bf3 Qg6 Qg1 d1R+ Rd4 Ba7 Nf2 Nf6+ Kd6 Nb4 Nd3 Nc2 Kc7 Ra6 Nb6 Na3 Nc4 Rd2 Kd6 Rg2 Ne3 Rd1 Nc2 b1B Kc7 Ba2 g8R+ Kf7 Kd8 Ne8 c7 Rd6 c8R Nc7 Rb8 Na8 Rh8 Ba6 Rb7 Qf6 g6+ Ke6 Ne5 Bf1 Rf8 Bb3 Ke8 Ba2 Qf2 Bd5 Rg1 h1R Nd3 Bb3 Rd5 R1h2 Qb6 Bc4 Qb2 Ba2 Na4 Qc3 Rd4 Qc6 Nc3 Rg5 Rg4 Bh3 Rh4 Rgg2 Rg4 Rd5 Kd8 Kd6 e8Q Bc4 Qe1 Ba2 Re4 Rd4 Qh1 Be6 Ke8 Rd5 Qg1 Rd4 Rb5 Kc7 Rb4 Rd6 Rb7+ Kc8 Reb4 Bb8 Rd4 Ba7
Nn1r1RN1/Pk2b1bR/5q2/p2r1P2/Nb2b1bQ/PQ2K3/B2n3p/3r2NR w - - 0 1 illegal: No proof kernel
Nk5K/rn1b4/1npbR1bB/3P3R/1Q1pQ1bP/1QP4B/B1r1B3/r5bq w - - 0 1 illegal: No proof kernel
2Q2Q2/1q2pp1r/r1nNP2P/P1Nb4/4n3/b1b1bRK1/1QrkN3/N4BnR w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h6 g6 Kd7 g7 Ra6 g5 Rh7 g6 Rh8 Bb2 Ke8 Bf6 Ra8 Bg5 hxg5 Kf2 Kd7 h4 Kd6 a4 Kc5 e4 Kd4 h5 c5 d3 b5 d6 c4 d7 c3 a5 g4 e5 b3 h6 c2 e6 c1B Qf3 b2 Qb7 g3+ Kg2 Ke3 d4 b4 d5 b3 d6 Nc6 Bb5 Qc7 d8N Ra6 d7 Nf6 g8Q Rh7 g7 Ne4 Na3 b1N Nc2+ Kd2 Ra2 b2 Ne2 Nbc3 Ra3 b1R Na1 Rb2 Qb6 Rc2 Nb7 Bb2 Nc5 Qb7 d8N Bc1 Kh3 g2 Bc4 g1B Qb2 Be3 Bd3 Ng5+ Kg3 Nh3 Qh8 Bd7 g8Q Bg7 Qf8 Ng1 Bc4 Qb4 Ndb7 Ne4+ Kg4 Bc3 Nd6 Qb7 Qc8 Nd4 Qhf8 Bc6 Rb3 Bd5 Bd3 Nf6+ Kg3 Nc6 Nf4 Bb4 Bf1 Ba3 Ne2 Ne4+ Kg2 Bd4 Rf3 Bc3 Kh2 Ke1 Kg2 Be3 Kh2 Kd2 Kg2 Nf2 Kg3 Ne4+
1BB1b1R1/2Q3B1/6qP/b1r5/p1K2p1k/PQ1n2r1/bP4BN/1nQnR1nr w - - 0 1 legal: proof: f4 b5 g4 h5 c4 g5 cxb5 e5 d4 Nh6 Nc3 Ng8 Nd5 Rh7 Ne3 Rh8 dxe5 gxf4 g5 Qf6 Ng4 hxg4 Be3 Qe7 Bc1 Qd8 Kd2 Ke7 Kc3 a5 h4 c5 e4 d5 a3 f5 b6 g3 e6 d4+ Kb3 d3 h5 g2 b7 a4+ Kc4 d2 g6 Kf6 e7 Kg5 e8Q f3 e5 f4 e6 f2 e7 Be6+ Kb5 c4 g7 c3 Ra2 c2 Nh3+ Kh4 Rg1 Nf6 g8Q Nbd7 b8B Nc5 Qd7 Nd3 e8B Bb4 Qc7 Nd5 Ng5 Qd6 Kc4 Ba5 Ra1 Rh7 Qe1 d1N Bd2 c1R+ Bc3 Bf7 Bb5 Qg6 Bd7 Be8 Bc8 Rg7 h6 Rb1 Bd4 N5c3 Qge6 Rc1 Q6e3 Nb1+ Qc3 Rg8 Bg7 Ra7 Qeb6 Ra6 Qb3 Rc6+ Kd4 Rc5 Nf3+ Kg3 Nh2 Kh4 Rh1 g1N Bg2 f1B Qcc2 Nh3 Rg1 Be2 Re1 Ng1 Qcc3 Bf3 Qd2 Bd5 Qe3 R1c2 Qc1 Rd2 Qbc3 Ba2 Qb3 Rg5 Kc4 Rf2 Re6 Rf1 Rf6 Rg3 Rf8 Rh8 Rg8 Rh7 Be5 Rf7 Bc3 Rf5 Bg7 Rc5+ Kd4 Nbc3 Bh1 Ne3 Qcc2 Nh3 Re1 Ned1 Qc1 Nb1 Bhb7 Rh1 Bg2 Rcg5 Kc4 Ng1 Qc3 Rf5 Qc1 Rc5+
3Rr3/4b2p/1bB2R1r/1PQR2p1/QK1QQ2P/4q1Pk/nb1B2nn/3rN2r w - - 0 2 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 d3 Bh6 f5 Be3 d5 Nc3 d4 Bg5 Bb7 Bc1 Bd5 exd5 Kf7 Ne4 fxe4 Be3 Ke8 Bf4 Qb6 Bc1 Qd8 Kd2 Kd7 f4 a5 b4 e5 h4 g5 c4 e3+ Ke1 e4 c5 e2 Kd2 e1N b6 a4 b7 a3 g3 a2 b5 Nf6 f5 Ng4 f6 Qe8 f7 Be7 f8R Ra6 d6 Ke6 c6 Nh2 c7 Nc6 b8Q Nb4 d7 Ng2 Rb1 a1B c8Q Na2 Qbb7 Bb2 d8Q+ Ke5 Qc3 Rh6 Qa4 Rg8 Rf6 e3+ Kd1 e2+ Kd2 Rh8 Qcc2 Rf8 Qbb6 Rh8 Qbc5+ Ke4 Nf3 e1B+ Kd1 Bb4 Bd2 Ba5 Ne1 Bb6 Be2 Rf8 Rhf1 Rh8 R1f5 Rg8 Rd5 Rh8 Bb4 Ke3 Bg4 d2 Bf3 Kf2 Qe4 Kf1 Kc2 d1R Kb3 d3 Qdd6 d2 Qde5 Rc1 Qe5d4 d1R Rd8 Qg6 Ra1 Re8 Bd2 Qf5 Rd5 Qf4 Rd8 Nc3 Kb4 Qe3 Bg4+ Kg1 Bd7 Rb1 Bc6 Na2+ Kc4 Nf1 Rd5 Kh2 Rd8 Kh3 Rd5 Nc1 Kb4 Nh2 Ra3 Ra1 Rd3 Na2+ Kc4 Rab1 Rd8 Qg1 Qdd5 Bd4 Nc2 Rf1 Qdd6 Qf2 Ne1 Rd1 Qde5 Ba1 R3d5 Rh1 Qe5d4 Bb2 Kb3 Qe3+ Kc4 Nc1 Kb4 Na2+
3b1k2/N1QPrn2/p1B1bR2/1n2rQrq/5pBN/1n2B3/P1P4Q/2Kn1bQ1 w - - 0 1 legal: proof: f4 c5 g4 h5 e4 g5 b4 d6 bxc5 Bg7 Na3 gxf4 g5 d5 exd5 Bf8 Rb1 Bg4 Rb3 Bh3 Rg3 Bc8 Rg4 hxg4 h4 f5 d4 b5 Kd2 e5 c6 f3 h5 f4 c7 e4 g6 a6 d6 e3+ Ke1 e2 Kd2 e1R d5 g3 h6 f2 h7 g2 g7 b4 Rh3 b3 Bd3 f1B Bb5+ Nc6 Ba4 b2 Nb5 Nh6 g8B Re7 Nf3 g1N Be6 Na5 Bg4 Ne2 Nh4 Nc3 Na7+ Nb5 d7+ Kf7 d6 Rg8 h8Q Rg5 Re3 Qe8 d8Q Be6 c8Q Re5 Qe1 b1N+ Kd1 Nb3 Qdc7 Rg5 Re5 Bg7 Be3 Bf6 Rf5 Rb8 Qh7+ Kf8 Qf2 Rb7 Qg1 Nf7 d7 Rb6 Qe5 Rc6 Qcc7 Rc5 Qe4 Re5 Qd3 Na1 Kc1 N1c3 Qd2 Nd1 Qdh2 Nh6 Qg6 Qf7 Qh7 Qh5 Qg6 Nf7 Qh7 Nbd6 Bc6 Nb5 Qg6 Re8 Qh7 Bd8 Rf6 Re7 Qf5 Nb3+
bQR1N1RQ/5BK1/P4Rnp/qQ2Qp1k/1r1N1Pb1/q3q3/1q3n1P/1q4r1 w - - 1 2 legal: proof: d4 d5 b4 a5 c4 axb4 cxd5 Ra6 d6 Bf5 e3 Bc8 d5 Ra8 f3 g5 Ke2 g4 Kd2 g3 Bb2 Bg7 Bf6 Ra5 Bh4 Bd4 exd4 Ra7 Bg5 Ra6 Be3 Ra8 Bf2 gxf2 Kd3 b5 Ke4 c5 Ke5 b3 g4 c4 a4 b4 f4 c3 g5 c2 g6 c1Q g7 h6 a5 b2 Ne2 b3 Nd2 b1Q Qe1 b2 Ne4 Bg4 a6 f5 d7+ Kf7 d6 Kg6 d5 e6 Rg1 Qa5 d8Q Kh5 d7 Nf6 Nd4 Rg8 Nd6 Ne4 Bc4 f1B Ne8 Nf2 Kf6 e5 d6 e4 Qb6 e3 d8Q e2 d7 Bg2 Qb5 Nc6 Qdb8 Ne7 d8Q Ng6 Bf7 Bd5 Qc3 e1Q Qdc7 Qbc2 Qe5 b1Q Ra4 Qce3 Rc4 Qe1c1 Rc8 Qca3 Qcb2 Qcb3 Rgc1 Ra7 R1c6 Rb7 Qc3 Qb3b2 Rd6 Rf8 g8R Rb6 Kg7 Ba8 Rf6 Rb7 Qf1 Rb3 Qfb5 Rb4 Nc7 Rd8 Ne8 Rd5 Nb3 Rd2 Nd4 Rd1 Rd6 Q1c2 Qed5 Qcd2 Nc2 Rc4 Kh7 Bc6 Qh8 Ba8 Nd4 Qde1 Kg7 Rb4 Rf6 Qh1 Qdc5 Qhe4 Qcd6 Qeb1 Qde5 Rg1
n6n/p2Q1PNn/P5p1/b1R2QnN/RRq1BrPb/R1n4r/K7/5kNq w - - 0 2 illegal: No possible last move
qB4r1/bN5p/R2K2Q1/b2q1Q2/1Q2Bp2/3PBRq1/nqB2PrP/1q4nk w - - 0 2 legal: proof: g4 d5 c4 dxc4 a4 e5 d3 f5 Kd2 b5 axb5 e4 Kc3 e3 Kc2 f4 Nd2 Bf5 gxf5 exd2 Kc3 Kf7 b4 Kf6 e4 Kg5 e5 Kh4 e6 a5 e7 g5 e8B c5 b6 g4 b7 a4 b5 g3 f6 a3 b6 g2 f7 a2 Bb2 Nh6 Be2 Qd5 Qc1 d1Q Ba4 Na6 b8Q Nf5 b7 Rg8 Qd6 Nb4 b8Q Nd4 Nh3 g1Q Ba3 Qg3 Ng5 Nf3 Qg6 Ng1 Ne6 Kh3 Nd8 Kg2 Nb7 Rg7 Qd2 Qb1 Bc1 Bd6 f8B Bc7 Qf5 Ba5 Qd6 Rd8 Be7 Rdg8 Bc2 Rg6 Qe1 Rg4 Be3 R4g5 Qdg6 Qb2+ Kd2 c3+ Kd1 c4 Bd6 Rg4 Bb8 Rg5 Bb3 c2+ Kd2 Qb1 Kc3 c1B Bc2 Rg4 Bea7 Be3 Qd2 Nf3 Re1 Ng1 Bed1 Beb6 Re3 Kh1 Rf3 Be3 Ba4 Rg5 Bc6 Beb6 Bc2 Bc5 Be5 Rg4 Bab8 Ba7 Bd4 Rg5 Be3 Rg4 Qe1 Qb2+ Kd2 c3+ Kd1 B5b6 Qff7 Qb1+ Bc1 Qg5 Qf8 Qh3 B2a4 c2+ Kd2 Rg2 Kc3 Qhg3 Be4 Qd5 Be3 c1Q+ Bc2 Bc7 Qd2 Bc5 Qff5 Qa3+ Bb3 Qa8 Bc2 Ba7 Qe1 Qe5+ Kc4 Bd8 Bb6 Qe6+ Kc5 Qc4+ Kd6 Qb2 Rd1 a1Q Be3 Qaa2 Ra1 Qab1 Ra4 Na2 Ra6 Ba5 Qb4 Qd5+
qBk2B2/bq1n4/R2n1NnK/5r1p/5b1P/1bP3QP/p2nB1Q1/r1QN3B w - - 0 1 illegal: No proof kernel
Nr6/8/1Qr1kqb1/2rR3K/1QBnq1np/1P2p1rP/2nB1P1b/BN1B1N2 w - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 b5 axb5 Qd7 Ra6 Qd6 Ra1 Qd8 e4 fxe4 Be2 g5 Bf1 g4 h3 g3 Rh2 gxh2 Ra3 Bf5 Re3 Na6 Bd3 Qd6 Ke2 Bd7 Nf3 Qf4 Kf1 Be6 Re1 Bd7 Ke2 Bf5 Rh1 Bc8 Ke1 Nb8 Ng1 Qd6 Bf1 Qd8 Ke2 Kf7 d4 c5 g4 h5 b3 e5 d6 a5 d7 h4 g5 c4 d5 c3 b6 e3 Kf3 e2 Kg4 e1Q b7 e4 d6 a4 g6+ Ke6 g7 a3 Ne2 a2 Ng3 a1N Qd2 c2 Qb4 Rh5 Be2 Rc5 Nf1 Nc6 b8B Qf6 d8Q Nd4 d7 Bd6 Bd2 c1R Bd1 Nac2 Qdb6 e3 Rg1 h1R Bc7 Rc6 Kh5 Bh2 Be5 Nh6 Rg5 Rb8 Rf5 Rg1 g8B+ Nf7 Rg5 Rg3 Rf5 Ba6 Rg5 Bd3 d8N+ Kd7 Ne6 Nh6 Bf7 Ng4 Nc7 Qe2 Na8 Qef3 Bc4 Qe4 Ba6 Ke6 Rf5 Nf3 Ba1 Nfd4 Bb5 Na3 Rg5 Rc5 Rd5 Nac2 Bc4 Qh1 Bb5 Bf5 Ba6 Qe4 Bc4 Bg6#
rkqBr2r/4Pp1Q/2R1qP2/1P3Bp1/Qn2Q3/1KB3bN/2nR1nr1/3Q1b2 w - - 0 1 legal: proof: g4 e5 c4 h5 a4 hxg4 d4 b5 axb5 d6 c5 Bb7 Nd2 Bc8 Nb3 Nf6 cxd6 Ng8 d5 Qf6 Nd4 exd4 Qd2 Qe7 Qd1 Qd8 Kd2 Kd7 Kc2 c5 b4 g5 e4 a5 h4 g3 f4 d3+ Kb3 g2 e5 d2 b6 Nh6 h5 Qe8 e6+ Kd8 b5 Rh7 b7 Na6 b8Q Rh8 d7 Bd6 f5 Bg3 f6 Nb4 Bd3 Ng4 h6 Nf2 Nh3 g1R h7 Rg2 Rh2 Qe7 Qg4 d1R Qb7 Re1 Bf5 Re4 Qa6 Kc7 d8B+ Kb8 d6 Bd7 Bd2 a4+ Ka3 c4 Rc1 Re1 Qe4 c3 Rc2 Bc8 d7 Qd6 Rc1 c2 Bc3 Bb7 Kb2 a3+ Kb3 a2 Qa4 a1N+ Kc4 Rh1 e7 Re8 h8Q Qe5 Qh7 Bc6 Rd1 c1Q Rd6 Nac2 Kb3 Bb7 Rc6 Bc8 Bb6 Qd6 d8Q Qe6+ Qdd5 Bb7 Bd8 Bc8 Rc4 Bb7 Qd1 Bd5 Qed4 Bf3 Qd5 Be2 Rc6 Bf1 Qc4 Qf4 Qcd5 Qc7 Qc4 Qcc8 Qcd5 Qd6 Qe4 Qde6+ Qdd5 Be2 Nf4 Nfd3 Qh8 Rgg1 Rf2 Rh4 Nh3 Rg2 Qg7 Rhh8 Qh7 Bf1 Re2 Qed7 Qdd4 Nf2 Qd1 Qd6 Rd2 Qde6+
1Q3Rb1/2b4n/1n1Prp2/1N2rPNk/KR3pqB/Pn6/3qnR1r/1N2Q2N w - - 0 1 illegal: No extended proof kernel
1Q6/R1RK4/1QBP1Q2/P2n3N/rNqR1p2/3bRP1n/p2qrb2/k1br3b w - - 0 1 illegal: No proof kernel
q1b1r2N/rQ1QpK2/1nB1PN2/1n1PR1b1/2p5/1k1n1Q2/1P5B/1qq2BnQ w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 Bb7 c4 Bc8 Ra3 d6 Rg3 gxf4 g5 d5 Rg4 hxg4 cxd5 Be6 Na3 Bd7 Nb1 Bc8 Kf2 Kd7 h4 Kd6 d4 c5 e4 a5 h5 f5 e5+ Kd7 b6 f3 Ke3 a4 Kf4 a3 b7 a2 h6 a1N g6 f2 Kg5 c4 h7 g3 g7 f4 Kg6 f3 d6 Kc6 d7 Kd5 Nh3 g2 Nd2 g1N Kf7 Na6 b8Q Nc7 Ne4 Ra7 Bf4 Nc2 Bh2 Nb4 Nhg5 Nf6 g8B Nb5 e6 Qa5 d8Q+ Nd7 Nf6+ Kc6 d5+ Kc5 Qd3 Nb6 Qb7 Bh6 Qdd7 Qa4 Qe4 Nd3 Qg4 Kb4 Qh3 Ne2 Rg1 Qa3 Rg4 Ng1 Re4 Qa6 Re5 Qa5 Kg6 Qa3 Bf7 Kb3 Be8 Qa4 Nf7 Bg5 Qg4 Rf8 h8Q Qa1 Bh3 f1Q Qg2 f2 Qf3 Qfe1 Bf1 Qeb1 Qh7 Qa6 Nh8 Rg8+ Kf7 Qc1 Be2 f1Q Qhe4 Qfd1 Bf1 Qb1 Qh1 Qdc1 Qef3 Qaa2 Qd8 Qa3 Bc6 Re8 Qdd7 Qa6 Qb8 Qb7 Qa8 Qb8 Qab7 Qa8
2r2q1b/1K1Pp2Q/RBb1Pnqq/1R1p4/qQR1R1nQ/2Pr3b/B2k4/6N1 w - - 0 1 illegal: No possible last move
3BB2R/QQqb2K1/PbnBBNp1/3b3N/2k5/P1nrp1Qb/1n2P1q1/3r4 w - - 0 1 legal: proof: b4 d5 f4 a5 bxa5 g6 g4 d4 g5 d3 a3 Qd5 cxd3 Qd7 d4 Qd8 d5 Nc6 f5 gxf5 g6 f4 g7 Nd4 Ra2 Nc6 Rb2 Nb8 Rb6 Be6 Ra6 Bc8 Rg6 hxg6 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 d4+ Kc4 h4 b5 a6 c5 h5 f3 d6 b4 d5 f4 d7 b3 h6 b2 h7 f2 d6 f3 Rh6 Nc6+ Ke6 Qc7 Kf7 e5 Bg5 e4 Bg2 f1Q Nh3 e3 Bf4 f2 Qe1 Nge7 d8B Nd5+ d7 Nc3 g8B Be7 Bf3 Qg2 Bd6 f1B Qg3 Bf6 Rh5 Bd4 Nf4 Rb8 Rh4 Rb3 Nh5 Bb7 B8e7 Bc8 d8Q Bd7 Bg5 Qf2 Qf6 Bfh3 Qe7 Qg2 Qe4 Nb5 Bge7 Rd3 Nc3 b1B Bd8 Ba2 Nd5 Nc3 Bg4 Rd1 Be6 Bb3 Bf6 Rd3 Kg7 Rd1 Bgf7 Rd8 h8Q Kb5 Qb1 c4 Be7 Na4 Be8 c3 Kh6 c2 Ng7 Rb8 Bd6 c1N Bd8 Na2 Kh7 Ba7 Rh6 Rd3 Nh5 N2c3 Qd4 Rb7 Ndf6 Rb6 Qd1 Bd5 Kg7 Rb8 Qb6+ Kc4 Qdb1 Rb7 Rh8 Rb8 Qa5 Rb2 Qb6 Rbd2 Qb8 Rd1 Q1b7 Bb6 Q8a7 Nb2
3qRQ2/3p2b1/NP1P4/Q6K/r2Q1Prn/nQnBnbqN/b1p1R3/2k4N w - - 0 1 legal: proof: e4 h5 c4 b5 g4 f6 gxh5 f5 exf5 a6 b4 bxc4 b5 a5 Ba3 Na6 Bd6 Nb8 Bb4 axb4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 d4+ Ke4 h4 g5 a4 c5 f4 Ke3 f6 e5 b6 c3 d5 c2 h6 c1N f7 b3 h5 e4 a5 b2 a6 c4 a7 c3 h7 c2 h6 Ne7 d6 Na2 Rh2 Nbc6 Rg2 Bg7 f8N Ng6 Nf3 Na5 Ne6 Bb7 Bd3 Nh4 Nbd2 b1B Ng1 Rg8 h8Q Nc4 h7 Na3 Nc5 Nc3 Na6 Ba2 Kh5 g4 Qb1 g3 Qb3 Bc6 Rh2 g2 Nh3 g1Q Rc1 Qg3 Re1+ Kd4 Rhe2 e3 Ne4 Bd5 Rh2 e2 Nef2 Ke3 Nh1 Kd2 Rf2 Bf8 Qe5 Rg4 h8Q Bf3 Qd4 Bg7 Qf8 Be4 Rg1 Bf3 Rgg2 Kd1 Rf1+ e1N Re2 Kc1 Rg1 Rc8 a8Q Rc4 Qad5 Ra4 Qa5 Rc4 Rf1 Ra4 Rff2 Neg2 Re8 Ne3 Rd2 Nf1 Rde2 Ne3
n1Qr3b/1bPpn1R1/pq1P1Q1q/8/b2b1BRR/q1kPQ3/6Br/1Q4NK w - - 0 1 illegal: No possible last move, all moves rejected
3k4/3bp2N/2bpqrn1/3P2Q1/2Q1nR2/1RP1NqB1/qbrPK3/N1R3Nq w - - 0 1 illegal: No possible last move, all moves rejected
1RN1KN1b/2b2N2/1pQ1q2r/rR1p1bQ1/2nP4/PR3nN1/B2P3k/1bn3q1 w - - 0 1 illegal: No proof kernel
k2Nq2N/1r3N1Q/r2P1n2/2P3KN/r1Rpn3/3P3R/1pqQb2R/b1n1nB2 w - - 0 1 illegal: No proof kernel
1B2nq2/q3bBnQ/B1RpqB1K/3P1n2/1P2Q3/3p3k/QR1Pb1rN/r3n3 w - - 1 2 illegal: No proof kernel
Q3b1Nn/K1p1R1p1/1rP2qB1/2Q2BQQ/rP1P1n2/R7/r2b1k2/B3qn1n w - - 0 1 illegal: No possible last move
1B1n1n1R/rNqQb1Nq/6k1/rNpQ3r/1Qp5/2P2NP1/nRn1P1b1/5K2 w - - 0 1 legal: proof: h4 e5 f4 exf4 a4 g5 hxg5 b5 axb5 Bb7 g3 Bc8 Bg2 d5 Be4 Ba3 Bd3 Bf8 Bc4 dxc4 d4 a5 b4 c5 d5 f5 b6 Kf7 b5 h5 b7 a4 d6 f3 c3 f4 d7 a3 b6 h4 Qd3 f2+ Kf1 a2 Qd1 h3 Ba3 h2 Qd3 Ra7 Qf3 Qc7 d8Q Nc6 b8N Nf6 b7 Nh7 Bc1 Be7 Qd7 Kg6 Qfd5 Nd8 Na3 Nf8 Rb1 a1N Nb5 Nb3 Nf3 Rh5 Rb2 Ra5 Bd2 Nc1 Nc6 Na2 b8Q Bb7 Be3 Ra7 Na5 Ba8 Nb7 Ra5 Rg1 h1Q Bd4 Qh2 Rh1 Qh4 Be5 Ra7 Kg2 f1R Bd6 Ra1 Kf2 Nc1 Kf1 R1a5 Rh2 Na2 Rh3 Kg7 g6 Kf6 g7 Kg6 Rh1 Qh2 g8N Qh4 Nd2 f3 Nf6 f2 Ne8 Qe4 Ng7 Qc2 Kg2 f1N Nf3 Ne3+ Kf2 Qe4 Be5 Nc2 Kf1 Rf5 Rh8 Qh4 N7d6 Qh7 Qb6 Bc6 Nb7 Rh5 N5d6 Ra8 Qb4 R8a7 Nb5 Qb6 Bb8 Qc7 Qd1 Bd5 Nd2 Bh1 Nf3 Nde6 Q1d2 Nd8 Q2d5 Bg2+
1k5B/1B1bB1r1/p1R3Q1/b3q2K/nPpP1b1Q/2P4n/rB1q2nR/2N1bQ2 w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 g5 fxg5 b5 axb5 Bh6 Ra5 Bg7 Ra1 Bf8 g4 h5 g6 Qd3 g5 Rh6 Na3 Qd4 Nc4 Qd8 Ne5 Rh8 Ng4 hxg4 Kf2 Kd7 Kg3 e5 h4 c5 g7 Kc7 b3 f5 g6 c4 d3 e3 h5 f4+ Kh2 g3+ Kg2 e4 h6 e2 h7 e1B Rh6 e3 Kf3 e2 Ra6 g2 Bb2 Nf6 g8Q Ba5 c3 e1B g7 Ng4 b4 Ne3 Rh2 Bd7 Ne2 Bd6 b6+ Kb7 Qf7 Rg8 h8B Bc7 Qf6 g1N+ Ke4 f3 d4 f2 Qh4 Ng2 Nc1 Nh3 Kf3 Qg5 Bd3 Bf4 Be4+ Kc8 b7+ Kc7 Rb6 Na6 Rc6+ Kb8 Qe2 Nc5 Qf1 Na4 Bd5 Rc8 g8Q Qe5 Qg6 Rg8 Be4 Rg7 Bd5 Be8 Kg4 Bd7+ Re6 Qe4 Kh5 Qc2 Rc6 Qd2 Qh1 f1Q Bf3 Qfe2 Qf1 Qe6 Bd5 a6 Be4 Ka7 Bf3 Rag8 b8B+ Kb7 Bd6 Qe5+ Qhg5 Rf8 Be7 Kb8 Be4 Be3 Bd5 Rf2 Be4 Bf4 Bf3 Qee2 Qh4 Qe5+ Bg5 Bc7 Rf6 Bg3 Ba3 Qdf4 Bb7 Ba5 Rc6 Ra2 Bb2 Qd2 Ba3 Bf4 Bb2 Qe4 Be7 Qe5+
4N2R/npB1N3/1Pr5/pr1P2q1/1b3RqQ/4k1qq/K3bn1P/QbNR2N1 w - - 0 1 illegal: No proof kernel
n1N4R/P6K/q6p/QNQB4/n3QpRP/1nQ2b1k/bPn1qr2/N1r3b1 w - - 0 1 illegal: No proof kernel
Qb1b4/n4rN1/1N1QB3/b1pK3p/n2r1qPR/1N1b1PqP/2Bq2Bk/2B5 w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 g5 b4 f5 bxa5 fxe4 a4 g4 f3 g3 Ra3 Kf7 Re3 Ke8 Re2 Ra7 Rf2 gxf2+ Ke2 Ra8 Ke3 Kf7 Kd4 Kg6 g4 Kg5 d3+ Kh4 d6 e5+ Kc5 b5 h3 Kg3 a6 e3 a7 e2 a5 e1B a6 b4 d4 b3 d5 b2 Rh2 e4 Bg2 f1Q Nd2 b1Q Qb3 e3 Qb7 e2 Nc4 Nc6 Nb6 Nge7 d7 Qe4 d6 Nd5 Rh1 Rb8 a8B Nc3 a7 Qf4 Rh2 Qh4 d8Q Na4+ Kd5 Bf5 d7 Be7 Qf8 h6 d8N Rh7 Ne6 Bd3 Ng7 Bd8 Qd6 Ba5 Qa6 e1B Ne2+ Kf2 Qc8 Qhg3 Nd4 Kg1 Nb3 Qe2 Bb7 Beb4 a8B Na7 Bc6 Bc3 Bd7 c5 Be6 Qed2 Bc6 Rb7 Qa8 Rf7 Be8 Rd7 Bg6 Bcf6 Be4 Bc7 B4f5 Bfd8 Be4 Bb8 Rh1+ Kf2 Re1 Rf7 Re2+ Kg1 B4f5 Kh2 Re5 Rd7 Be4 Rf7 Rh5 Rd7 Rh4 h5 Nf5 Rhf7 Ng7 Be2+ Nd4 Bb5 Bc2 Bd3 Nb3 Rb7 Nc8 Rb4 Nb6 Rd4+
Qq1K3Q/3Br1Bq/1bbNq2N/q2R1Pk1/7p/2n4r/1rpP1Q1P/3NN2n w - - 0 1 illegal: No possible last move
1n1R4/rr2RQ1Q/1P3nR1/r4ppN/kPn1bb2/2nN1Pq1/1B2K3/1Qq4Q w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Na3 Ke5 Nb1 Ke6 h4 f5 b4 a5 e4 c5 h5 g5 b6 d4 h6 c4 f3 c3 h7 g3 e5 Kd5 e6 Kc6 e7 Kb5 e8Q a4 Bb2 a3 Rh4 g2 Qb3 c2 Qbf7 c1Q+ Ke2 a2 Qg6 Qdc7 Qef7 Ra7 d8Q Ka4 d7 Qg3 Na3 Bb7 Rh6 Be4 Nc4 Nf6 Ne5 Bd6 Nd3 Bf4 Nh3 g1R Rb1 a1N Qh5 Ra5 Rg6 Nc2 Qc8 Rd8 h8Q Ne3 Q8h7 Nc4 Qc7 Re8 d8R Re7 Qc5 Rb7 Qc8 Bd2 Nhf4 Raa7 Qh4 Be3 Nh5 Bf4 Qh1 Rd1 Nf2 Rd3 Qc5 Ra3 Qc8 Ne3 Qc3 Nc4 Qd3 Ra2 Ra1 Ra3 Qb1 Ra2 Nd3 Ra5 Ne1 d3+ Kf1 d2 Ke2 d1N Nd3 Ra3 Ra2 Kb5 Ra1 R3a4 Ra2 Raa7 Ra3 R4a5 Rc3 Ka4 Rc2 Nd6 Rc7 Nc4 Re7 Nc3+
K1r1Q1QR/4Rpq1/3BQ2N/3bpqR1/1P2qb2/4PnP1/B2bR3/2r1q1nk w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 a4 gxf4 axb5 h5 Nc3 h4 Ne4 Ba6 Ng3 Bb7 Nf5 Bc8 g3 h3 Ne3 Rh7 Ng2 hxg2 Nf3 Rh3 Ng1 Rh8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 b4 a5 d4 f3 h4 f2 e3 a4 b6 c4 b7 c3 h5 c2 h6 a3 h7 a2 Ba6 f1Q Nh3 g1Q Nf2 Be6 Bb2 c1B Qb3 Qe8 Ng4 Nd7 b8R Bh6 Rb7 Bd2 Bc4 Ne5 Re1 a1Q Re2 Nf3 Rh5 Ra6 Rg5 Rc6 Qa2 Qae1 Qa6 Qgf2 Ba2 Ng1 Rc7 Qf6 Ra7 Bf8 Nh6 Qg7 Rb7 Bc8 Rc7 Bb7 Bc3 e6 Qc4 Ne7 Bb2 Ng6 Re7 Rg8 h8R Nh4 Ba1 Nhf3 Bc3 Qd7 Qb3 Kc7 d6+ Kb6 d5 Qg2 Bf6 e5 Qc4 Qe6 d7 Qh1 d6 Qf5+ Kd5 Qh4 Re6 Be7 Qb3 Rgc8 d8Q+ Kb5 d7 Qhg4 Rg6 Qgf4 Bh4 Bg5 Qg8 Rc1+ Kd6 Bd5 d8Q Q4e4 Re7 Bf4 Rg5 R8c4 Qc8 R4c2 Qe6 Rc6+ Kd7 Kb6 Qa4 Kb7 Qaa8+ Kb6 Qae8 Kb5 Bb1 Kc4 Ba2+ Kd3 Rg4 Qd4 Bf6 Ke4 Rg5 Nh2 Kd8 Kf3 Kd7 Qde4 Kd8 Qgh7 Bg7 Qhg6 Bf8 Qg7 Ra7 Qf2 Bd6 Kg2 Re7 Kh1 Kd7 Qe1 Kd8 Ra6 Kd7 Nhf3 Kd8 Bc4 Kc8 Rc6+ Kb7 Bd5 Ka8 Rc8+
2b2K1b/RqPQ2pP/2B2r2/1Nkp1Qn1/1qNN1R2/1r1P2n1/R1nNq3/6q1 w - - 0 1 illegal: Other
2R1qQ2/1qPB1Nrp/N4Q2/2K4R/p5qP/1bR2bP1/1qR2N1b/n3nk1r w - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 g5 exf5 Na6 f6 Nb8 f5 Bb7 Bd2 Bc8 Bf4 gxf4 Kf2 Kf7 h4 a5 b4 e5 c4 d5 c5 e4 b6 d3 b5 f3 Ke3 f2 Kd4 e3 c6 d2 c7 e2 b7 e1Q b6 Nc6+ Kd3 d4 Kc4 d3 b8Q Bd6 b7 Qde8 Nc3 Nd4 Rh2 Q1e4 Nh3 Nh6 Rh1 Nf3+ Kb3 Ne1 Ra3 Ng4 Qb1 Ne3 Qa1 Rg8 Nd1 N3c2 Rh2 Be6+ Kc3 Rg7 Ng5+ Kg8 Qd8 Bb3 b8N Qb7 f7+ Kh8 Be2 f1Q f6 Qf2 Bg4 a4 Na6 Rb8 Qb2 Na1 Bd7 Qfb6 Nf2 d1B Qe7 d2 Qd8 Qb5 Kd4 Bf3 Qc3 Qe2 Qb4 Bf4 Kc5 d1Q Qd4 Qb2 f8R+ Rg8 Rf7 Rg7 Re7 Qde2 f7 Qe6 Qb4 Qg4 Re5 Bg3 Qf6 Rd8 Be6 Rd1 Bd7 Bf4 Rh3 Bh2 g3 Ng2 Qbf4 Rh1 Q4f5 Ne1 Rd5 Qe6 f8R+ Qg8 Rc8 Qe8 Qf4 Kg8 Nf7 Kf8 Qc3 Ke7 Rf5 Nac2 Qfb4 Na1 Re5+ Kf6 Qcd4 Bc2 Rc3 Bb3 Qd6+ Qee6 Qf8 Qe8 Qd4 Kg6 Re2 Kh5 Qf6 Bg2 Re7 Bf3 Re5+ Qf5 Qh8 Bg1 Rh2 Qg5 Rg2 Bh2 Nd1 Qf5 Rf2 Kg4 Qf8 Kh3 Rfc2 Qg4 Nf2+ Kg2 Rh5 Kf1
N1rb1nr1/4P1Q1/1R1NN1Kp/nQ6/2b5/1Pb1kq1P/1RB4p/1b1rqR1R w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h3 g5 d3 f3 Bf4 g4 Bh2 g3 Qb3 gxh2 Qc2 Nh6 Qd1 Ng8 Kd2 Ke7 Ke3 Kf6 Kf4 c5 g4 a5 e4 h6 d4 f2 g5+ Kg6 e5 f5 b6 c4 e6 c3 e7 a4 d6 a3 b3 c2 d5 c1B+ Nd2 a2 d7 Bb2 b7 Qa5 d8N Nf6 d6 Nc6 b8R Nd7 Bd3 f1Q+ Ngf3 Bd4 Nc4 Bfg7 Nb6 Rg8 Nf7 Nf8 d7 Qae1 d8R Na5 Nd6 Bd7 Rb1 a1R Rb2 Bg1 Be4 Bc3 Qd3 Rd1 Qb5 Be8 Rb7 Rc8 Na8 Bb6 Bc2 Bd7 Re8 Bd8 Rb6 Kh5 g6 Be6 g7 Bc4 Ne4 Qg2 Nd4 Qf3+ Ke5 f4 Kf5 Kh4 Nd6 Kg3 Ne6 Kf2 Bd3+ Ke3 Be4 Rh8 g8Q Bd3 Qg3 Bb1 Bc2 Rg8 Qg5 Qfg3 Qg7 f3 Qg4 f2 Qg7 Rd4 Kf6 f1B Kf5 Bc4 Kf6 Ng6 Rf8 Rd3+ Kf5 Rd1 Rf6 Nf8 Rf7 Nh7 Rf6 Qf3+ Kg6 Qc6 Rf2 Qf3 Rff1 Nf8+
b1RN2q1/1bQpQqr1/2R2pQK/R7/1b1rNr2/Q2n1P2/P1n2rP1/1k3B2 w - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 e5 b4 exd4 Ba3 c5 bxc5 Nf6 Bb4 axb4 Rh6 Ng8 Rh2 Be7 Rh1 Bf8 Kd2 Ke7 e4 Ke6 c4 Ke5 f3 b5 c6 h5 c7 b3 g6 b2 c5 h4 c6 h3 g7 b4 Nc3 b1Q Nge2 f6 Qb3 d3 Ke3 d2 Nd1 h2 Nec3 Nh6 g8Q Ra4 Qgc4 Nf7 Nd5 Rg8 Qbc2 b3 Q4d3 b2 Nb4 Rg7 Nc3 Bb7 c8Q d1R c7 Nc6 Qc1 Nd4 Nc6+ Kd6 Kf4 Kc5 e5 Nc2+ Qe4 Rdd4 e6 Ne5 e7 Nd3+ Kf5 Kc4 e8Q Bb4 Qg6 Qg8 Qe7 Ba8 Qce3 Qe1 Nd8 b1B Ne4 Qd2 Nf2 Kc3 Ne4+ Kb2 Qb7 Qc3 c8R Qcb3 Qc7 Qbc4 Kg4 Qcf7 Kh5 Bb7 Kh6 Ba8 Be2 Bb7 Rc1 Ba8 Bf1 h1R+ Qh2 Bb7 Rc5 Rg1 Qc7 Ba8 Ra5 Bb7 Be2 Re1 Bf1 Re2 Nd6 Rf4 Ne4 Rf2 Qa7 Bd2 Qa6 Rd4 Qa8 Bb4 Qa6 Ne3 Rc6 Bc2 Rd1 Ba4 Rd2+ Kb1 Rdc2 Bb3 Qa7 Bd5 Qac5 Be1 Qa3 Bb4 Qcd6 Ba8 Rc8 Bdb7 R2c6 Nc2 Qb8 Rd6 Qc7 Rd4
1QNqR1nB/4Qq1b/1Q1pR3/4bn2/3np1K1/1rPPR2r/4RP2/bk2N2n w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 b4 gxh4 b6 c6 b7 Bh6 b5 Bg7 b6 Bf8 Bb5 cxb5 Ke2 Kf7 Kf3 Kf6 g4 Ke5 f6 Kd4 f7 h5 d3 a5 g5 e5 g6 b4 g7 e4+ Kf4 b3 Rh3 d6 Na3 Kc3 Ra2 a4 Rh2 b2 Qe2 b1Q Qf1 h3 Nf3 h4 Qg2 Bf5 Ne1 Nc6 b8Q Qb3 b7 Nd4 Qg5 Bh7 Nc4 a3 Nb6 Be7 f8Q Qf7+ Kg4 Bf6 Qb5 Be5 Bb2+ Kd2 Rh1 h2 Qe7 h3 Nc8 Ra7 Ba1 Kc1 Qb6 Ra6 Rg1 h1N Rg3 h2 Re3 Ng3 Bc3 h1N Rb2 Nc6 Bd4 a2 c3 a1B Rbe2 Ra2 Q6c7 Bf5+ Kg5 Ra3 Qb6 Nf6 g8R Qd7 Na7 Rh3 Qa8 Bh7 b8R Rb3 Rg6 Nf5 Re8 Bg3 Qab8 Qd8 Nc8 Ng8 Bh8 Ncd4 Kg4 Be5 Re6 Kb1
r3bb2/nRpR1rq1/1pnN2k1/3q1nB1/1PP2P2/bQR5/Q3Q1K1/B4nR1 w - - 0 2 legal: proof: d4 a5 b4 e5 dxe5 f5 g4 h5 gxf5 a4 Nd2 Ke7 Bh3 Ke8 Nb3 axb3 Bg4 hxg4 Kf1 Kf7 c4 g5 a4 d5 e4 b2 h4 b1Q e6+ Kg7 e5 g3 e7 d4 e8Q b6 h5 g4 e6 d3 a5 d2 f6+ Kh7 f7 Be7 f8R Qd5 a6 Qb2 a7 Nh6 Rf7+ Qg7 Nf3 Rf8 Rh3 Nf5 h6 Nc6 Nh4 Bd7 Qb3 d1N Bg5 Nc3 f4 g2+ Kg1 Nb5 Rc3 Bd6 e7 Bc5+ Kh2 g1N Rac1 Ne2 Rg1 g3+ Kh3 Rc8 a8Q g2 Qaa2 Neg3 Kh2 Nba7 Kh3 Ne3+ Nf5 Kg6 h7 Ra8 h8B Bd4 Kh2 Bc5 Nd6 Nef5 Qc8 Bd4 e8R Nf1+ Kh3 Bf6 Qe2 Bd4 Qa6 Bc5 Rb8 Be8 Re7 Rf7 Qaa2 Be3 Rd7 Bc1 Rb7 Ba3 Rc1 Qf8 Ba1 Qg7 Rh1 g1B Rc3 Bc5 Rg1 Qd2 Kg2 Qdd4 Nc8 Bf8 Nd6 Qd5+
NBn1r3/1NQqQ1P1/3B4/p2b1B2/3qrPRp/q3bQ2/Pr3nqk/K1Q5 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 Na3 g5 hxg5 f4 Rb1 Bd7 Rb3 Bc8 Re3 fxe3 d4 Kd7 f4 Ke6 c4 Kf5 d5 a5 g6 b5 c6 e5 g7 h5 c5 e2 Kd2 Kg4 Kc3 Kg3 Kb2 e1Q c7 b4 c6 h4 d6 b3 d7 e3 Ka1 e2 Nb5 e4 Ba3 e3 Nh3 Be7 Rg1 Nh6 g8Q+ Kh2 g4 Qg3 g5 e1Q g6 e2 g7 Qd2 Qf8 e1R Nd6 Ng4 Ng5 Bb7 c8Q Qgg2 c7 Re4 Bd3 Bd5 Nb7 Nc6 Ne6 Rb8 Bd6 Na7 Qf3 Nf2 Bc2 Qe8 d8B Qd7 Qf7 Bf8 Qe7 Qb4 Bd3 Qa3 Bb1 Qb5 Qcd7 Nc8 Qc6 Qba4 Qc1 Qd7 Bd3 Re1 Bf5 Re4 Nec5 Rg8 Na4 Rh8 Nb6 b2+ Kb1 Rg8 Na8 Rh8 Qf7 Rg8 Bf6 Be7 Bfe5 Bf6 Qe7 Re8 Bc3 Bd4 Bcb4 Na7 c8Q Be3 Q8c7 Nc8 Bc3 Qb4 Bce5 Qb6 Kc2 b1Q+ Kc3 Q1b4+ Kc2 Bb3+ Kb2 Qa3+ Kb1 Bd5+ Ka1 Qf1 Rg4 Qg2 Bd4 Qbb4 Ba7 Qd2 Nc5 Rbb4 Nb7 Rb2 Bb8 Qd4
rqN3QK/1PB1q1Bn/3R4/p1b1Bbn1/2Bq3p/1rP5/PNNn3Q/1k5n w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 d4 cxd4 hxg5 Bh6 Nd2 Bg7 Nb1 Bf8 c3 b5 Nd2 b4 Qg4 b3 Qf3 Ba6 Qd1 Bc8 Ndf3 Kf7 Be3 Qa5 Rc1 Qd8 Rc2 bxc2 b4 Ke8 Kd2 Kf7 Kd3 c1N+ Ke4 e5 g4 a5 f6 Kg6 f7 h5 b5 h4 b6 d3 b7 d6 Ne2 d2 Ned4 Be7 f8B Nb3 Qe2 d1Q Bg7 Rh5 Ne1 Na6 f4 Nc7 Nd3 Ne6 Nb2 Nd2+ Kd5 e4 Be5 Bd7 Qh2 Qb8 Bc4 Rh6 Bg1 e3 Nc2 e2 Bb6 e1Q Bc7 Qe3 Re1 Qde2 Ra1 Bc8 Rd1 Nf6+ Kc6 Nh7 Kd5 Kf7 f5 Qd4+ Kc6 d5 f6 Kg6 f7 Bc5 f8B Qg1 Bfg7 d4 Kd5 d3 Rf1 Qge3 Rf7 Q2f2 Rd7 Qf7 Rd6 Qe7 Qg2 Nb3 Qh1 d2 Qh2 Qf2 Ke4 d1N Kd5 Qff6 Ke4 Nf2+ Kd5 Nh1 Ke4 Kf7 g6+ Kg8 g5 Nd2+ Kd5 Qf2 Bd4 Bd7 Ke5 Qe3+ Kf5 Qg1 Bde5 Qd4 Bgf6 Rh5 g7 Kf7 g8N Rh6 Bg7 Rg6 Nf6 Bc8 Ne4 Rf6+ Kg4 Rf1 Kh5 Rb1 Kh6 Bd7 Na4 Rb3 Nb2 Bc6 Nf6 Be4 Ng8 Bf5 g6+ Ke8 Rb6 Kd7 Ra6 Neg5 Rb6 Qf6 Ne7 Qf7 Nc8 Qe7 Rb4 Kc6 Rb5 Ba7 Rb6+ Kc5 Rd6 Bb6 Bgf6 Ba7 g7 Bb6 g8Q Ba7 Bf7 Kb5 Kg7 Bc5 Nc4 Ka4 Kh8 Qe4 Bg7 Qd5 Ne1 Qd4 Nb2+ Ka3 Bc4 Qd7 Nd1 Qe8 Nf2 Kb2 Nfd3+ Kb1 Nc2 Qd8 Nb2 Qe7
8/rqP1bN1K/4kp2/2nR1R2/Pr2q1rQ/R1Rn1Q2/2pNrPN1/B4bb1 w - - 0 1 illegal: No proof kernel
4qB2/b3p2P/2kp3r/2PnRbQ1/1Q2NR2/1Nq4Q/1rRP1q1r/K2Q1r1n w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 b4 hxg4 b6 c6 b5 Rh4 b7 Rh7 b6 Rh8 Bb5 cxb5 h4 a5 c4 g5 f4 b4 h5 a4 f6 b3 f5 d6 h6 Kd7 f7 g3 f6 b2 Nf3 g4 Ra2 a3 Nd4 g2 Nc3 b1R Bb2 g3 Rh5 Bg7 f8Q Qe8 f7 Nf6 Qg8 Na6 b8Q Nb4 f8R Nbd5 b7 Ng4 Nb3 Nf2 Ne4 Bd4 Qg5 Ba7 c5 Kc6 Rf4 Bf5 Bg7 Nh1 Rc2 a2 Bf8 g1R+ Ke2 a1Q Kd3 g2 Qc8+ Nc7 b8Q Rb2 Kc3 Rf1 Qb4 g1Q Qe6 Qf2 Qc8 Rg8 Qe6 Rg6 h7 Rh6 Qec4 Rb8 Qd3 Rb5 Qh3 Rb1+ Rb2 Nd5+ Kc2 Qa5 Ra2 Rc1+ Kb2 Rc4 Ka1 Rc3 Qhg2 Rh3 Q2g4 Rh2 Qh3 Qb6 Rc2 Qa5+ Qa3 Qb4 Qa4 Qc4 Qb4 Qc3+ Kb1 Ra5 Qg7 Bg6 Re5 Bf5 Qg8 Ra2 Qg5 Rb2+ Ka1 Kd7 Qgg3 Kc7 Qg5 Kc6
B4b1q/1NPq1r2/2QpnNq1/2Q5/1B2Pk2/1pr2N1r/R2P1KbN/3r1B1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 a4 exf4 Ra2 Qb6 Rb2 Ke7 axb5 Qf6 b6 Ke8 b5 Qd8 Rb4 cxb4 e4 Ke7 c4 Ke6 g4 Ke5 b7 f5 b6 h5 g6 a5 c5 a4 g5 a3 c6 f3 g7 d6 c7 h4 g6 a2 Kf2 a1Q Nh3 f4 Nc3 Ne7 g8N Na6 b8N Nc5 g7 Qd7 b7 Ra3 Nh6 Nf5 g8B Ng3 Ng5 h3 Qa4 h2 Ba2 Ne6 Nd5 Rc3 Na6 Rh7 b8Q Rf7 Bac4 b3 Qbb4 Qb2 Rg1 h1R Nf6 Rh3 Nc5 Ba6 Bd5 Qa1 Bg2 Bf1 Qc6 Qa8 Nb7 Qad8 Bh1 Bg2 Ba3 Q8c8 Ra1 Qb8 Ra2 Qbc8 Ke1 f2+ Kd1 f3 Qbc5 Kf4 Nhg4 Bg7 Bb4 Qh8 Nh2 Bf8 Qa6 Qe7 Nd8 Qd7 Ba8 Qh7 Nb7 Qh8 Qe2 f1Q+ Qe1 f2 Ngf3 Qa6 Qc6 Qa5 Qg1 Nf5 Ke2 f1R Qf2 Rd1 Qfc5 Ng3+ Kf2 Qb5 Qa7 Qg5 Qac5 Bf1 Bg2 Qg6 Ne5 Be2 Bf1 Bf3 Nh7 Bh1 Nef3 Bg2 Nf6 Nh1+
b3qn2/1p1p1n1N/Q1bK1B1Q/1b4R1/PPQ3Nn/2R3rr/3PbN1N/1q2k3 w - - 0 2 illegal: Other
k2r1r2/6NQ/b1pp1q2/1NPP1QRK/2R1nbP1/3nQ3/1b1b1bB1/1Q2b2N w - - 1 2 legal: proof: e4 f5 g4 fxe4 a4 b5 axb5 g5 b3 h5 Ba3 h4 Bd6 Bb7 f4 Ba6 fxg5 Bc8 Bg3 hxg3 c4 a5 d4 e5 h4 e3 d5 e4 c5 g2 b4 c6 g6 d6 h5 Kd7 b6 e2 Kf2 e3+ Kg3 a4 h6 a3 g7 a2 b7 Kc7 h7 Ra3 b5 Nd7 Qd3 Kb8 Nh3 e1B+ Nf2 g1B Nc3 e2 Qf5 Bd2 Bg2 e1B Rh5 Ra6 Rc1 a1B Rg5 Qe7 Kh4 Nb6 Kh5 Nd7 Nh1 Nh6 g8N Ne5 Nf6 Nhf7 Ne8 Bh6 Ng7 Rf8 h8Q Bb2 Qhh7 Ra8 Rc2 Ka7 Rc1 Nd3 b6+ Ka6 b8Q Bgf2 b7 Qf6 Qc7 Ka7 Qe7 Bf4 Qe3 Kb8 Rg6 Ng5 Nb5 Ne4 Rc4 Bhg5 Qg3 Bfd2 Qe3 Bf4 Rg5 Rd8 Nd4 Ka7 b8Q+ Ka6 Qb3 Ka7 Qc2 Ba6 Qb1 Rac8 Nb5+ Ka8 Qe2 Rf8 Qe3 Rcd8
4b1bR/Q1Qb2nn/2pRP2Q/r3b1B1/1Kb2pN1/qR6/RN3PP1/1b3kr1 w - - 0 1 illegal: No possible last move
4Br1R/1bqPK2Q/1R1Q2pN/1npP1b2/2Pk3b/3n1b2/R1nr4/1QRNn3 w - - 0 1 legal: proof: e4 a5 g4 f5 gxf5 d5 exd5 h6 b4 axb4 Bb2 Nd7 Bf6 Nb8 Bg5 hxg5 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 h4 e5 f4 b5 a4 c5 a5 g6 a6 b3 d6 b2 d7 b4 f6 b3 f7 Qe7 a7 Na6 h5 Bb7 h6 Nb4 h7 Nd3 f5 Rd8 a8Q Bh6 f8R Nf6+ Kh3 g4+ Kh4 g3 Ra2 g2 Qa7 Ne8+ Rf6 Ke3 Ne2 g1N Ng3 e4 Nc3 Rf8 h8R Nc7 Qb1 Nf3+ Kg4 Bg7 Rb6 Nb5 Bg2 Qd6 Rc1 Nfe1 Kg5 Qc7 Bf1 Nb4 Bc4 Nbd3 Bf7 Bh6+ Kf6 Bg5+ Ke6 Be7 Be8 Bh4 Qa1 b1B Nd1+ Kf4 c4 e3 Qb2 e2 Qa1 Bc2 Qb1 Bf3 Qb7 b2 Qa7 Ba4 Qb7 Nc2 f6 e1N f7 Rb8 Nf5 Ra8 d5 Ke4 Nh6 Ra5 Qa1 b1B Qg7 Ra8 Qh7 Kd4 Nb2 Nd6 Qb8 Bc6 Nd1 Nb5 Qb7 Ra3 Qb8 Rb3 Qb7 Rb2 Qb8 Rg8 f8Q Bb7 Qd6 Rf8 Qa7 Nca3 Qa5 Rd2 Qb4 Nb2 Qb3 Bd3 Qb4 Nac2 Qb3 Bde4 Qb4 Nbd3 Qb1 Bf2 Ke7 Bf5 Rba6 Bg3 Rb6 Bh4+
Rnk4q/4r2Q/1b2RnPp/r2b1K2/P5n1/2p2r1r/BRPNn2B/R1Q2B2 w - - 0 1 legal: proof: e4 a5 d4 g5 h4 e5 hxg5 f5 b4 axb4 Nc3 Bg7 dxe5 Na6 e6 Nb8 e5 Bf8 Ne4 fxe4 Ke2 c5 Ke3 d5 Kf4 b5 a4 c4 g4 b3 f3 d4 e7 Kd7 e8R b2 g6 b1N g5 b4 g7 b3 g6 b2 Bg2 d3 Rh4 d2 Re6 e3 Kf5 e2 f4 e1R Bf1 Ra5 Nf3 Nf6 g8Q Bb7 Rh5 h6 Qh7+ Kc8 Rh3 Re3 Qe1 d1N Nd2 Ra3 Rb3 Nbc3 Rb5 b1R Rb2 Bd5 Re7 Ng4 Nb3 Nge3+ Kf6 Na6 f5 Kb8 Bd2 Nf2 Qd1 Rg8 Qe1 Rd1 Bc1 Rd3 e6 Bg2 Bd2 Rg7 Qc1 Ne2 Bc3 Bb7 Nd2 Nd5+ Ke5 Qe8 f6 Kc8 f7 Nb8 Kf5 Rh3 Be5 Ng4 Bh2 Qd8 Re8 Bc5 e7 Ndf6 Qg8 Nbd7 Qh8 Bd5 Qh7 Bb6 f8R Kb7 Rh8 Rad3 Rhg8 c3 Rgf8 Nh5 Rf6 Qc8 Rc6 Nhf6 Re6 Rf7 Rh8 Qf8 Rg8 Qg7 Ra8 Nb8 Re5 Kc8 e8B Qh8 Bc6 Bf3 Bd5 Re7 Ba2 Bd5 Re6 Rdf3+
R2NknB1/3R2qP/1N1b2Rn/1pnN1NK1/2Q5/1r1r2rb/1P3p1P/5nrQ w - - 0 1 illegal: No proof kernel
1bR1Kbb1/7k/2qQ2N1/1qp2rbp/B2r2QP/1BP4P/nb1B1R1Q/4Q1q1 w - - 0 1 illegal: No possible last move, all moves rejected
N3r3/pQ1bB2b/q2b2pN/2k2q2/3b1Br1/K3Rq2/P1PQ2PQ/3Q1Bnq w - - 0 1 legal: proof: h4 f5 d4 e5 e4 c5 b4 g6 h5 Na6 h6 Nc7 Nd2 Ne6 Rb1 Ng7 hxg7 Be7 Rb3 Bd6 Re3 Bf8 bxc5 exd4 e5 Ne7 Re2 Ng8 Re4 fxe4 f4 Ke7 e6 b5 c6 Kd6 f5 h5 f6 e3 f7 h4 c7 d3 e7 e2 e8Q b4 Ndf3 h3 Kd2 e1B+ Ke3 h2 Kd4 b3 Kc4 d2 Kb4 b2 Nh4 b1Q+ Ka4 Qb6 Ba6 Qf6 Nhf3 Kc5 Qe5+ d5 Qde2 d1B Bf4 Rh4 Nd2 Be6 Qb2 d4 Nc4 d3 Qb1 d2 Nf3 Bf2 Nfe5 Ne7 g8Q Bd4 c8Q+ Nc6 Qb7 Qf5 Ng4 Re8 Qh7 Ne5 Nh6 Bd6 f8B Nf3 Ka3 Bg8 Re1 h1Q Be7 Rg4 Qh8 Qb5 Nb6 Bh7 Na8 Ng1 Qf2 Bf3 Re3 d1Q Qd2 Bc6 Qbc1 Qf3 Qcd1 Qb6 Bb5 Bd7 Bf1 Q5e4 Qe5+ Qd5 Qh5 Qf5 Qh2 Qa6+
4Q1b1/1bB1Bnpp/Bb2p3/2R1PQNr/PK2Brr1/1PnNk3/4q2N/4n3 w - - 0 1 illegal: No proof kernel
8/2k4p/r1B1Qrp1/PKNn1bR1/RNQ3bR/1n3pPn/QP6/R1brq3 w - - 0 1 illegal: No proof kernel
3Rr2n/p5r1/qpP1R1B1/2bR1Q1b/P2N1QPN/2k1Kb2/Q1n1n2p/2Q2r2 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 h4 gxh4 bxc5 Bh6 Qd2 Bg7 Qd1 Bf8 e4 f6 e6 Nh6 e5 Ng8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Ke2 Kb5 e8R Kb4 c4 h5 f4 d5 a4 h3 f5 b6 f6 e4 e7 h4 c6 d4 c7 h2 c5 d3+ Ke3 d2 g3 h3 f7 Nh6 Be2 Rg8 Na3 Rg7 Bh5 Kc3 Nf3 Bb7 c8Q Nc6 Nh4 Nd4 Qf5 Qc8 Rd8 Ne2 Re1 h1R e8Q h2 Bg6 Rf1 Nc2 Bd5 c6 Bc5+ Nd4 Qa6 f8Q Nf7 Qg8 Nh8 Qee5 Bf7 Qb1 d1B Qef4 Rb8 Rd5 Re8 Rd8 Bd5 g4 Bf7 Bh7 Bh5 Qga2 Ng3 Bg6 Bf3 Qd1 Ne2 Qc1+ Kb4 Kd2 Ng3 Nb5 Bd4 Qcc2 e3+ Kd3 e2 Rad1 Rh1 Qcc1 Rg1 Rf1 e1N+ Kd2 Nc2 Rfe1 Rf1 Re6 Ne2 Kd3 Ka5 Kd2 Bc5 Kd3 Ncd4 Ke3 Kb4 Na3 Be7 Nc2+ Kc3 Rd2 Nb5 R2d4 Na3 R4d5 Bc5+ Nd4+ Nc2+
1N1Q2rn/prN1nnQp/5r1B/2bb1P1q/P2kb1QN/8/2PpR3/2NK3R w - - 0 1 legal: proof: e4 c5 d4 e5 h4 f5 b4 g5 bxc5 gxh4 Bd3 Na6 dxe5 Ke7 e6 Nb8 e5 Ke8 Be4 fxe4 a4 Ke7 f4 b5 g4 d5 f5 e3 c6 e2 g5 b4 c7 d4 g6 b3 g7 b2 Be3 d3 Na3 b1R Bd4 h3 Nc4 h2 Nd2 Rb7 Ngf3 Nc6 Be3 Qe8 Bh6 Nd8 Nb3 Qh5 Nc1 Nf7 Nh4 Bd7 c8Q Bc6 Kd2 e1N Qg4 Be4 Kd1 d2 Ra3 Bd5 Re3 Ng2 Re2 Nf4 Qc3 Ng6 Qcd4 Kd8 e7+ Kd7 e8N Kc6 e6 N8e7 Nf6 Rg8 Nd7 Ngh8 Nb8+ Kd6 Qe5+ Kc5 Qeg3 Be4 Qc7+ Kd4 Qd7+ Nd5 Qd8 Bc5 e7 Rf8 e8N Rg8 Rf1 h1B Nc7 Rf8 g8Q Bg2 Nd7 Ne7 Rh1 Rab8 Q8g6 Rg8 Q6g5 Rb6 Qg6 Rf6 Qg7 Rb7 Nb8+ Kc3 Rf1 Bd5 Rg1 Bge4 Rh1 Kd4
3RbR1N/p7/Qp2PrQ1/1b2B1b1/1nBrB2n/P4nPB/2Rr1qpk/2K5 w - - 0 1 legal: proof: d4 h5 f4 g5 b4 c5 bxc5 e5 Na3 h4 Nc4 h3 Ne3 gxf4 dxe5 Qf6 g3 Qd8 Ng2 hxg2 Kd2 Ke7 e4 Ke6 c4 d5 h4 f5 a3 d4 h5 f3 c6 f4 c7 d3 c5 b6 c6 f2 h6 f3 h7 Qd5 Ra2 Ne7 Qe2 Na6 Nh3 Bd7 c8B Nf5 c7 Be7 Rc2 Nb4 Bb2 Rd8 h8R Qa2 Rf8 Nh4 Bb7 Be8 Kc1 Rd4 Bc6 Bg5+ Nf4+ Ke7 c8B d2+ Kd1 Qf7 e6 Kf6 e5+ Kf5 Be4+ Kg4 Qa6 Rb8 Bfd3 f1B Bc4 f2 Ng6 Qf5 Rg1 Kh3 e7 Kh2 Nh8 Bd3 Re1 f1N B8e6 Qf6 Bh3 Qf2 e6 Rbd8 Ba1 R8d5 Re2 Rf5 Bc3 Rf6 Re1 Bb5 e8Q Bd7 Qg6 Be8 Bcd5 Bdb5 Bc4 Kg1 Re3 Nh2 Rd3 N2f3 Ba1 Rd7 Rd6 Kh2 Be5 Rd8 Rc6 Rd7 Rc8 Rd3 Rd8 Rd4 Rc3 Nd5 Kc2 Nb4+ Kb2 d1R+ Rc2 R1d2 Kb1 Ba4 Kc1 Bab5
R2NKQ2/p4b1p/PP2br1P/n2RnBR1/1qQ1Nk2/1p6/1rrN4/1R3qq1 w - - 0 2 illegal: No proof kernel
1nq1Q3/qQb3RR/P1q3Bp/3brQ2/nK1NRppr/3k1P2/r1RP4/6B1 w - - 0 1 illegal: No proof kernel
nNq1Q3/5q2/R2Nq1Pr/2k2p2/2b2nB1/pKB2pb1/n3PPB1/2N1Q1rB w - - 0 1 illegal: No possible last move, all moves rejected
2b3Q1/2N1nRR1/3pRBpr/1PPP2K1/n1RN4/kN2rpb1/q7/n2bqQ2 w - - 0 1 legal: proof: b4 e5 f4 exf4 g4 h5 gxh5 b6 c3 b5 Bh3 c6 Be6 c5 Bb3 c4 a4 cxb3 axb5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kf3 Kd6 Kg4 a5 d4 a4 e4 b2 h4 g6 c4 f6 e5+ Ke7 b6 f3 b5 f2 b7 f1B d5 a3 e6 Kd6 e7 Kc5 e8N Kb4 h6 a2 h7 Ra4 h5 Nc6 b8R Na7 h6 Bg7 c5 Qc7 Rb7 f5+ Kg5 d6 Nd2 b1Q Ne2 f4 Nb3 f3 Ned4 Ra3 Rh4 Qa5 Bb2 Be2 Rf7 Ne7 Nc7 Be5 Qf1 Bg3 Rg7 Qe4 Re1 a1N Rf4 Qc2 Rff7 Bd1 Re6 Ka4 Bc3 Qa2 Bb2 Qe1 Bc3 Rf8 h8Q Re8 Qh7 Rh8 Qg8 Rh7 Bb2 Rh8 h7 Kb4 Nd2 Re3 N2b3 Ka4 Nf5 Kb4 Bf6 Ka3 Nfd4 Bd7 Qe2 Nac8 Qf1 Nb6 Qb8 Rd8 h8R Na4 Rh4 Rh8 Qg8 Rh7 Nc6 Rh8 Rc4 Rh6 Ncd4 Bc8
5n1k/q3b3/p2nBK1b/Qp3b2/PP1rRPqQ/2R1Rp2/3N1Qr1/1Q1n3N w - - 0 2 illegal: No possible last move, all moves rejected
r4n2/pQ1qrp2/P3R1q1/1b1b3R/1p3qk1/QP1BQ1n1/N3P1B1/BB2K1b1 w - - 0 2 legal: proof: h4 d5 f4 e5 c4 exf4 cxd5 g5 hxg5 c5 b3 c4 Na3 c3 Nc4 Ne7 Nb2 cxb2 Rh3 Ng8 Rh2 Bb4 Rh1 Bf8 d4 Kd7 g4 b1Q a4 h5 d6 Ke6 a5 b5 d5+ Ke5 d7 b4 d6 f3 g6 h4 g5 Kf5 g7 h3 g6 h2 Bg2 Nc6 Qd2 Rh7 Qe3 Be7 Nh3 Bb7 Ng5 Rh4 Ne4 Ne5 Nc3 Qc2 Na2 Nf6 g8B Bf8 g7 Rh6 Bb2 Ba6 Bh7+ Kg4 g8B Bb5 Bd3 Nh5 Bgh7 Ng6 a6 Bg7 Rc1 Nf8 Ba1 Bd4 Bhg6 Qdc7 d8Q Ng3 Qc8+ Qd7 Qb7 Bb6 Bh7 Re6 Bhg6 Qcc6 Rc4+ Qe4 Rc6 Re7 Bb1 Qee6 Bgd3 Bc5 Rb6 Qg6 Rc6 Qd8 d7 f2+ Kd2 f1Q Re6 Qf4 Ke1 Qe8 d8Q Qd7 Qa5 Bd4 Qa3 Bb6 Rf1 h1B Rf3 Qfh6 Rf5 Qf4 Rh5 Bd4 Bf1 Bd5 Bg2 Bb6 Qec1 Bg1 Qd2 Qff6 Qe3 Qf4
K1R2q2/p1n1P1Bp/P1QqrRB1/B3q2R/6r1/2r1k1p1/2P2R1n/1bbQ2N1 w - - 0 1 legal: proof: g4 c5 d4 e5 dxe5 g6 h4 g5 Nc3 c4 Ne4 c3 bxc3 f6 c4 gxh4 c5 f5 g5 Kf7 Nf6 Ke7 Ng4 fxg4 Be3 Kf7 Bc1 Ke8 Kd2 Kf7 Kd3 Ke6 Kc4 Kf5 Kd5 b5 a4 b4 f4 g3 a5 h3 g6 h2 g7 b3 c6 b2 c7 b1R e6 Rb3 e7 Nh6 g8R Ng4 e8Q Ba3 Rg6 Rg8 Bd2 Bc1 e3 d6 Qc6 Na6 Rh6 Bd7 c8R Rc3 Rg6 Re8 Bd3+ Re4 Ra4 Qf8 Rc4 Rb8 Rh6 Rb4 Rh5+ Kf6 f5 Re6 e4 Be8 Be1 Bf7 Rh6+ Kg5 e5 Bg8 f6 Bf7 Be4 Kf4 Bg6+ Ke3 Rf4 Bg8 f7 Ra4 Qc4 Nc7+ Kc6 d5+ Kb7 d4 a6 d3 Qc6 d2 Rf6 Re4 Rh5 Ra4 Nf3 Rac4 Rf1 h1Q Ng1 Qd5 R1f2 Nh2 Kb8 Rg4 Kb7 Rd6 e6 Qe5 e7 Re6 Rg5 Qd8 f8B Bf7 Bg7 Qf8 Rgf5 Re4 Qg4 d1Q Rh5 Qdd6 Qd1 Rg4 Kb8 Ra3 Ba5 Rc3 R6f5 Rf6 Kb7 Ba2 Kb8 Re6 Rf6 Bb1 Kb7 Nb5 Ka8 Nc7+
3n1QK1/1r1Bp3/pB2PP1N/P3QR2/BkNB4/2b4q/p1q1qQr1/1b1b1n2 w - - 1 2 legal: proof: b4 d5 c4 b5 cxd5 g5 a4 f5 g4 Nc6 a5 Nb8 Ra4 bxa4 h4 fxg4 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 e4 Kd7 Ke2 Kd6 Ke3 h5 Kd4 h4 f4 a6 e5+ Kd7 g6 h3 f5 h2 f6 a3 b5 c6 b6 g3 b7 g2 d6 a2 g7 c5+ Kd5 c4 d4 c3 Nh3 g1Q Bb2 c2 Na3 c1Q Qc2 Qg6 Bb5+ Nc6 b8Q Qh7 Ng5 Qd1 Nc4 Ra7 Rf1 Qh3 Qf2 Qc2 Ba4 Rb7 Nf7 Nh6 g8B Nf5 Nh6 Ng3 Bf7 Rg8 Be6+ Ke8 Bg4 Bf5 Qc7 Be4+ Ke6 h1B d5 Bhf3 Bd4 Bd1 Qb8 Qc8+ d7+ Kd8 Kf7 Qe2 Qd6 Bb1 Qc5 Kc7 d8B+ Kb8 Bb6 Nd8+ Ke8 Qf5 d6 Qfc2 Bgd7 Rg7 e6 Ka8 Rg1 Nf1 Rg5 Rg8 Rf5 Rg2 Qe5 Bg7 Bdb5 Kb8 d7+ Ka8 Ng4 Bh6 Bc6 Bd2 Kf8 Bc3 Bcb5 Rc7 Kg7 Kb7 Kg8 Nc6 d8Q Rd7 Qf8 Nd8 Qeg3 Rc7 Be8 Rd7 Bb3 Kc6 Nh6 Qe5 Qg5 Kb5 Ba4+ Kb4 Qgg3 Rc7 Bed7 Rb7 Qg5 Qee2 Qgg3 Rh2 Qe5 Rg2+
2Q1r1N1/b2n3Q/1bp1Q3/1Q1nB1rp/P3Nq2/qp1b3P/PK1N2nk/4R2B w - - 0 1 legal: proof: f4 d5 e4 f5 c4 g5 b3 a5 Na3 a4 bxa4 Bd7 Rb1 Bc8 Rb3 Be6 Rf3 Bc8 cxd5 fxe4 f5 Na6 Rf2 Nb8 Rf4 gxf4 d4 Kf7 Kd2 Kf6 Kc3 Kg5 g4 Kh4 d6 h5 f6 b5 d5 e5 g5 e3 f7 b4+ Kb2 e2 h3 Kg3 g6 e1N g7 f3 d7 c6 d6 e4 Qd4 e3 Bg2 e2 Qa7 b3 Nb1 f2 Nf3 f1Q Nc3 Qe7 d8Q Bf5 d7 Bd3 Qdb6 Nf6 g8N Nd5 d8Q Nd7 Nd2 Qf4 Qe8 Bg7 f8Q Bd4 Bf3 Ng2 Qb5 Bb6 Re1 Kh2 Nce4 Qb4 Qee7 Re8 Qe6 Rh7 Qc7 Rg7 Qff7 Rg5 Qc8 Qe7 Qh7 Qc5 Ka1 Qb4 Bb2 Qa3 Be5 Ba7 Rc1 e1B Rb1 Qd6 Kb2 Bef2 Rc1 Bfb6 Re1 Nh4 Bh1 Ng2 Qf6 Qc5 Qe6 Qa3+
1n4Nq/nrQq3p/RK2RN1P/N4b2/5RPp/bB1qn2k/N3p2P/3r2Q1 w - - 1 2 illegal: No possible last move
K2nqQnR/1B4p1/1p3br1/1r3kPR/r1P1p2q/4RN2/1nR2PBB/1b1Q4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 f5 exf5 h6 dxc5 Nc6 Nd2 Nb8 Ndf3 h5 g5 Qa5 Ne5 Qd8 Ng4 hxg4 Ke2 Kf7 Kd3 e5 Kc4 d5+ Kb5 g3 a4 d4 h4 b6 a5 b3 a6 g2 a7 d3 c6 d2 c7 b2 h5 Nc6 h6 Be7 f6 Ke6 h7 Qe8 f7 Kf5 f8Q+ Bf6 Nf3 g1Q Bg2 Qh2 Ra3 Qh4 Re3 b1R+ Bb2 Bb7 c8R Nd8+ Rc6 Rc8 a8B Rc7 c3 Rd7 Rc7 Be4 Ka6 Rd5 Ka7 Rb5 Bb7 Bc2 Rh2 e4 Ka8 Bd3 Bc1 R1b4 Rc8 Bb1 Ba3 Rd4 Bd6 Rdb4 Bg3 Qf4 Rh5 Qh4 Qc2 d1N Bh2 Nb2 Qd1 Nh6 Qf7 Rf8 h8R Ng8 Qe7 Rf7 Qf8 Rd7 Rc7 Re7 c4 Ree5 Rd7 Re6 Rd2 Rc6 Qe7 Bd4 Rc2 Rg6 Qf7+ Bf6 Qf8 Ra4+
3RBrB1/b2QKnnq/1P2p3/3b1N2/1pp1PR2/QnQ1q2b/7P/B1r1B2k w - - 0 1 illegal: No proof kernel
4qnQN/5p1B/4QqR1/1nb1P1B1/1kpr3p/1q3rQN/bPP1Q3/2N2K1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e6 e4 e5 a4 d6 axb5 exf4 e5 d5 Ra4 Ba3 Rc4 Bf8 Re4 dxe4 g4 Kd7 d4 c5 b6 Kc6 b7 a5 g6 h5 g5 a4 g7 h4 g6 f3 Kf2 a3 Bf4 a2 Qd3 a1N Bh6 e3+ Ke1 e2 Nd2 Nf6 g8Q Be6 g7 Qe8 Nb3 Nbd7 b8Q Ne4 Nc1 Nf2 Qbb3 Ra3 Nh3 Bc4 Qa2 Kb5 d5 Kb4 d6 Nb3 Rg1 Nd4 Rg6 Nb5 Bg5 Be7 Bg2 Nf8 d7 Rc3 Qa6 Ba2 d8N c4 Ne6 Bc5 Nef4 Rh6 Qd1 Rd3 Qe6 Rd4 Rf6 Rh5 Ng6 Rh6 Nh8 Rh5 Bf4 Rf5 Rg6 Rf6 Bg5 Rf5 Qd3 Rff4 Kd2 Rf5 Ke3 e1Q+ Qe2 Qg1 Bh1 Qg3 Bg2 Nd3 Kd2 f2 Be4 Rf3 Kd1 f1Q+ Kd2 Nf2+ Bd3 Qfg2 Ke1 Q2h2 Kf1 Qf4 Rf6 Qe3 Bh7 Qhf4 Rh6 Qf6 Rg6 Nd7 Qf8 Qc3 g8Q Qb3 Qfd6 Nf8 Qd8 Rg4 Qdd3 Rd4 Qde3 Qc6 Qf4 Qe8 Qg3 Nh1+
1BB1rNrn/3q1pNP/1Q1bBQ1p/2p2P1r/N7/2R4b/1qP3kN/2K2nn1 w - - 1 2 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 h4 hxg4 b4 Bc5 h5 Ke7 h6 Kf8 h7 Ke8 Ra6 Bf8 Rah6 gxh6 Kd2 Ke7 e4 Ke6 f4 c5 b6 d5 b7 a5 b5 d4 b6 d3 Nf3 g3 Rh3 g2 Nh2 g1N Nc3 a4 Qf3 a3 Na4 Na6 b8N a2 b7 a1Q Nd7 Nc7 b8Q Qb1 Qb6+ Bd6 Kd1 d2 Bc4+ Nd5 Nf8+ Ke7 e6 Kf6 e5+ Kf5 e7 Qb2 e8N Qd7 e6 Nge7 Qf2 Ke4 Ng7 Ng6 e7 Rg8 e8B Nh8 Qh4 Rb8 Qf6 Ra8 Ra3 Rb8 Bb3 Ke3 Ba2+ Kf2 Rc3 Kg2 Bb3 Qe7 Bb5 Bh3 f5 Qd7 Ba6 Re8 Ba2 Nf4 Bc8 Nh5 Bc4 Ng3 Be6 Nf1 Re3 Qd4 Bb2 Qb4 Be5 Qb2 Rc3 Nf3 Ke2 d1R Bf4 Rd3 Be5 Re3+ Kd1 Ng1 Bf4 Re4 Bg3 Rh4 Be5 Qa2 Kc1 Rh5 Bf4 Be7 Bc7 Bd6 Bb8 Qb2+
BK3r2/1p1q1Pn1/1B6/1kq1RRRQ/pP1b2RN/r1Q1B2p/3r2Pn/1b1b4 w - - 0 1 illegal: No proof kernel
nN1Kbn2/b1NPRp2/1p5R/knq1p1q1/5Q1N/NP4P1/Q4r1B/Qr5q w - - 0 1 illegal: No proof kernel
2Q1b3/rb2R3/BBp1rp2/p1n3Q1/3q1RNq/R1b2B1k/2PP1Pq1/n1B3K1 w - - 1 2 legal: proof: e4 d5 h4 dxe4 a4 g5 hxg5 b5 axb5 Bg7 Nc3 Bh6 Nb1 Bf8 b4 Kd7 g4 Ke6 b6 h5 b7 a5 b5 f6 g6 e3 g5 Kf5 g7 e5 b6 e4 g6 h4 Ra2 h3 Qe2 h2 Qc4 Kg4 Nf3 Bd7 Qa4 Ra7 Ba6 Nh6 Kf1 Be8 g8R Qd4 g7 Nf5 Ne5+ Kh3 Ng4 Bb4 Na3 Nd7 b8B Bc3 b7 Nc5 Nc4 Rh4 Rg1 h1B Qb5 Rh7 Rg2 e2+ Kg1 e3 Ra3 Rh4 Rf8 Rh7 g8B Re7 Rf7 Re6 Nh2 Qh4 Rg4 Nd4 Re7 Ndb3 Rf4 Na1 Ng4 Bhc6 Bh7 Bg2 Bd3 e1Q+ Bf1 e2 Nce3 Ne4 Qg5 Nc5 Rd7 Qd1 Re7 e1Q Be2 Qg3 Bf3 Qde2 Nh2 Qc4 Nhg4 c6 Bd6 Qd4 b8Q Qe2 Qa8 Qec4 Qc8 Qa4 Bb5 Bf1+ Ng2 Bc4 Bc7 Qb4 Ba4 Ba6 Bb5 Bb7 Ba6 Qbc4 Bb6 Qb4 Rf5 Qa4 Nh2 Qdh4 Rf4 Qd4 Ng4 Qxg2+
3n1Qq1/rp6/Q2bPK2/1nN1B1RB/p1r5/nPrBkqQ1/P1p1b2Q/2R5 w - - 0 2 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 Be7 Qc2 Bc5 Qd1 Bf8 e4 g5 hxg5 Qe7 Na3 Qd6 Nc2 Qd8 Ne3 fxe3 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 a5 g4 h5 d6 f5 b3 f4 g6 e2 g5 e1N d7 h4 g7 h3 g6 a4 Qe2 h2 Nf3 c6 Rg1 h1R Nd4 f3 Bb2 f2 Rc1+ Nc2 Qa6 R8h3 Bd3 f1Q Rg5 Ne7 g8B Ra7 g7 Qf3 Bf7 Nf5 g8Q Nd6 Bh5 Nb5 Qg7 Rg3 Qh7 Rh4 Ne6+ Kb4 Qg7 Nca3 Nc5 Bd6+ Ke6 Rgh3 e5 Rc4 Qf8 Rg3 Qf4 Qg8+ Kf6 Rh3 d8Q Bg4 e6 Rg3 Be5 Rh3 Nd7 c5 Qf8 Nc6 Qh6 Nd8 Qg7 Qc6 Qh2 Be2 Qf8 Re4 Qg3 c4 Nc5 c3 Qh2 c2 Bc4 Bb8 d4 Kc3 d5+ Kd2 d6 Rd4 d7 Nf7 d8Q Rc3 Qdd6 Ke3 Bg3 Nd8 Bd3 Rdc4 Qc7 Qe4 Qe5 Bd6 Qf4+ Kd4 Qg4 Ke3 Be5 Qd5 Qgg3+ Qf3+
K3Nb2/2Q3r1/b2R1B1k/QbN2nN1/1bP1Bp2/nrP1pP2/2b2qp1/1B4B1 w - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 a5 a4 d5 b3 c4 bxc4 dxe4 Ra2 Qb6 Rb2 Qd8 Rb4 axb4 Ke2 b5 Ke3 g5 h4 e5 d4 f5 a5 Kf7 c3 Kg7 a6 g4 d5 b3 a7 b4 h6+ Kh7 f3 b2 h5 b3 d6 g3 d7 g2 Qd6 Ba6 Bd3 Qc8 d8Q Ne7 Nh3 Nbc6 Qa5 Rb8 a8B Na7 Rd1 Nb5 Nd2 b1B Qdc7 b2 Nb3 Na3 Nc5 Bc2 Bc6 Ba4 Bb1 Rb4 Rd6 Rg8 Bd2 Rb3 Ng5+ Kh8 h7 Kg7 h8N B4b5 Nhf7 f4+ Ke2 e3 Kd3 e4+ Kd4 e2 Be3 e1B Bg1 e3 Bce4 Nf5+ Ke5 Qd8 Kd5 Qf6 h6+ Kg6 h7 Bh4 h8B Rg7 Nh7 Kh5 Nfg5 Qd8 Nf6+ Kh6 Na4 Qe7 Ne8+ Qf6 Nc5 Qg6 Nge6 Bhe7 Ng5 Qf6 Nge6 Qh4 Ng5+ Rg6 Bf6 Rg7 Na4 Qg3 Kc5 Qf2 Kb6 Nh4 Ka7 Nf5 Rd3 Bb4 Ka8 Nc2 Rd6 Na3 Ba2 b1B Nc5 Bd3 Bb1 Bc2
bN5k/1bn5/Nb2KpPr/1P6/5Rp1/1bbr2BQ/1qQQp1P1/1BNnN3 w - - 0 1 illegal: No proof kernel
r4r2/3p1Br1/1N2pNBk/nQ1b1rbP/1p1P3B/3P3N/2nQ2qr/1B4KR w - - 0 1 illegal: No proof kernel
1Nb4q/Pr2pQRQ/2Pp3Q/1Np4r/2nr1b2/BnNP1r1B/6r1/k4KN1 w - - 0 1 illegal: No proof kernel
1rr5/1bB1Rpr1/2PNn1pN/2brn1Pk/3b1K1N/q2R3R/4p2P/1Q1QN3 w - - 0 1 illegal: No proof kernel
2q1RN2/N2ppPn1/2rQ1b1R/1b1P4/2r1RnpQ/1kbQ1KP1/1Bbr4/1Q6 w - - 0 2 legal: proof: e4 c5 b4 f5 exf5 h5 a4 h4 g3 h3 Bg2 b5 axb5 cxb4 Qe2 hxg2 Qg4 Rh3 Qd1 Rh8 Ke2 Kf7 f4 a5 h4 g5 d4 a4 c4 a3 f6 Ke6 c5 Kd5 c6 Kc4 f7 b3 h5 b2 d5 a2 c7 Ra5 h6 Kb4 b6 Kc4 f5 Ra3 b7 Rf3 h7 Nf6 Nc3 b1B Nb5 Nc6 b8Q Ba6 c8R Ne8 f6 Rc3 Nh3 g1R Na7 Bc2 Nf4 Bb5 Ng6 Bg7 f8Q Kb3+ Qd3 Rd1 f7 Bf6 Rh6 Nb4 Kf3 Ng7 Qd6 Rd2 Bb2 Qc7 Rb8 Qc8 Re1 a1B Re4 Rg8 Qd8 Re8 h8Q Rg8 Qe3 Nd3 Q8b6 Rc6 Nf8 Bc3 Qh7 Nf4 Qd3 Rc4 Rh3 Rh8 Qh4 Rh6 Ra8 Qa6 Re8 Qc8 Qg1 Re6 Qdc5 Rc6 Qd6 Ka4 Qb1 Bf6 Ba3 Bac3 Bb2 Kb3 Qg4 Ne2 Rh6 Nf4 Qh4 g4+
kb4N1/2BnR1N1/7b/1R1pNp2/1npr1PQ1/1K1N1n1r/Pn1P1R2/4rq1Q w - - 0 2 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 b5 b4 e4 Bg2 Ba6 Bf3 exf3 Qa4 axb4 Qd1 b3 Ba3 b4 Bc1 Bb5 cxb5 Ra4 Kf2 Ra5 Ke1 Ra8 h4 f5 e4 d5 h6 Kd7 h5 Kc8 h7 Kb7 e5 g5 h6 b2 e6 b3 e7 g4 e8N g3 b6 g2 Na3 b1N Ne2 g1B Nc4 b2 Ne5 Ne7 Rh2 Qd6 Ng7 Nd7 Rf2 Na3 Rb1 Kb8 b7 Nc6 Ra1 b1R Bb2 Qb4 Nc1 Nc4 Ncd3 Ra4 Bc3 Qb2 Ba5 Nb4 Bb6 c5 Bc7+ Ka7 b8N Ka8 Nbc6 Qc1 Ne7 Nb2 Ng8 Qc4 Ng4 Bd6 Nge5 Rc1 Rb1 Qb5 Rh2 f2+ Ke2 f1N Rf2 Nh2 Ke3 Bf8 Qg4 Rf1 Ke2 Nf3 Re1 Nc4 Kd1 Nb2+ Kc1 Na6 Kc2 Rd4 Re3 Nb4+ Kb3 Qa6 Nc6 Bd6 Re7 Rb1 Nce5 Re1 Ba5 Bb8 Bc7 Qb5 Nf6 Rc8 h8Q Rg8 Qh7 Rh8 Ng8 Qa6 Qhg6 Rh7 Q6h5 Rh8 Qh1 Rh7 Nc1 Qf1 Ncd3 Rh8 Rh2 Bf2 h7 Bh4 Rf2 Bg5 Nh6 Rf8 Ng8 Bh6 h8R Rf6 Rh7 Rg6 Rh8 Rg5 Rh7 Rh5 Rh8 Bg5 Rh6 Rh3 Rb6 Bh6 Rb5 c4+
2k4N/2rp4/2qQ4/1RbR1pb1/1PnnnP1r/5RQ1/nRp1bPK1/2BB2B1 w - - 0 1 illegal: No proof kernel
k2nKN2/1p4Q1/1r6/pB1Pq1NR/NRRr2n1/P3PQ1b/2r1p2R/3bb1r1 w - - 0 1 illegal: No extended proof kernel
4n1QN/4nBNp/3kN3/2pb4/qp5P/bRRQrPb1/1r1PbN2/1Q1K2r1 w - - 0 1 legal: proof: b4 a5 c4 axb4 f3 d5 cxd5 f5 Bb2 g5 Bd4 g4 e4 g3 exf5 Nh6 Ke2 Ng8 Bf2 gxf2 h4 Kd7 g4 e5 a4 b5 a5 c5 f6 e4 d6 b3 f7 b4 a6 e3 g5 b2 a7 Nc6 g6 Qb6 g7 Na5 Nh3 Qc6 Na3 b1B Nb5 Nc4 Nd4 Ba2 Qb1 Ba6 Kd1 Ne7 g8Q Bg7 Nf5 Bb2 Ng7 Ba3 f8Q Re8 a8N Qb5 Qd5 Rg8 Nc7 Qa5 Qdd3 e2+ Kc2 e1B Kd1 Kc6 d7 Nd6 Nce6 Bd5 d8N+ Kd7 Be2 f1R Nf2 Qb5 Ra2 Qa4+ Rc2 Bac4 Nf7 Rg1 Ne4 Bg3+ Bf1 Ra8 Nh8 Ne8 Nf2 Kd6 Qf7 Rf8 Qg8 Ra7 Ke2 Bb5 Rc3 Rf5 Rb3 Re5+ Kd1 Re3 Qdc2 Rg2 Bc4 Ra5 Re1 Rg1 Rc3 Ra7 Bb3 Bf1 Qd3 Re4 Re3 Re5 Qdc2 Ra5 Red3 Re3 Bc4 Ra6 Rb3 Ra8 Rdc3 Qc6 Rb2 Be4 Rbb3 Bc1 Nd3 Ra2 Nc7 Qa4 Nf2 Ba3 Bf7 Bd5 Qd3 Rb2 Nce6 Be2#
1R3R2/1b1Kn3/1QpB4/2r1pR1P/Q3P1RN/B1Pnp3/b1q2brb/k4B1n w - - 1 2 legal: proof: g4 b5 e4 h5 a4 d5 axb5 d4 Na3 g6 Nc4 g5 Ne3 dxe3 f4 hxg4 fxg5 Rh7 Bh3 Rh6 Bf1 Rh8 Ke2 Kd7 Kd3 Ke6+ Kc4 Ke5 Kc5 f5 b4 a5 h4 f4 g6 g3 d3 a4 h5 c6 g7 a3 b6 f3 b7 f2 b5 g2 b6 a2 Nh3 g1B Qe1 Nd7+ Kc4 Ra5 b8R Bb7 Qb4 Ndf6 Ba3 Ng4 Qa4 Rc5+ Kb4 Kd4 Ng5 e5 Rh4 Ne7 g8R Bh6 Rf8 Rg8 Rc1 a1N Re1 Ba6 b7 Nb3 Rb1 Rg6 Rf5 Qg8 Rbf8 Nc1 b8B Qa2 Bd6 Bb7 Rb2 Rc4+ Ka5 Kc3 Kb6 Rc5 d4 Nd3 Nf3 Bf4 Kc7 Bfh2 d5 Qb1 Kd7 Qd1 Bh3 f1B Rb1 Be2 Bf1 Ngf2 Rg4 Nh1 Nh4 Bf2 Rb4 Ba8 Rbb8 Bb7 Rgf4 Rg2 Rg4 Kd2 c3 Qc2 Bc7 Bd1 d6 Be2 Ke6 Bd1 d7 Be2 d8Q Kd1 Bb4 Kc1 Bd6 Kb2 Ba3+ Ka1 Qb6 Nc1 Qba5 Bc4+ Kd7 Nd3 Qb6 Ba2
1br1Q3/1pqB3b/r3QQ2/KbQRBPr1/RPP5/N3n1pn/2R3p1/b6k w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 a4 Nd2 Nh6 Nb3 axb3 Be3 Ng8 Bg5 Rh3 Bc1 Rh8 Kd2 Kf7 Kc3 Kf6 a4 Ke5 h4 Ke4 f4 d5 c6 e5 f6 g5 a5 d4+ Kc4 b2 Kb5 b1B c4 d3 a6 g3 c7 g2 f7 g4 a7 d2 h5 Nc6 h6 Nce7 h7 Nf5 Rh3 Ngh6 Rc3 Rg8 h8Q Ne3 Qf6 Bd7+ Kb6 Bd6 f8Q Bb5 Qe1 d1R Bd2 Rc8 a8R Rg5 R8a7 Nf7 Ne2 Kf3 R1a4 Bh7 Ka5 e4 Qe8 Be5 Bc1 Rd6 Bb2 Rb6 Rc2 g3 Nd4+ Kg4 f5 Kh3 Be2 Kh2 Bd1 Bf4 Qe2 Kh1 Bc3 Rg4 Bb2 Ng5 Ra8 Nh3 Ra6 Ra8 c8Q Bb8 Qc5 Rg5 Qee6 Qc8 Qh5 Qc7 Qhe8 Nf1 Bf3 e3 Bc6 e2 Bd7 e1B Ra7 Bc3 Ba1 Bc6 Nb5 Ne3 Na3 Bb5 Bb2 Bd2 Bd4 Bc3 Be5 Ba1 Ra6 Ba7 Qeg6 Rf8 Qge8 Bb8 Ra8 Ba7 Rd8 Bb8 Bc8 Rfg8 Rd5 Rh8 Bd7 Rf8 Q8e7 Rc8 Qe8 Ra6+
1BbQ4/3R4/qpr2Nn1/BQb1QPk1/1bPp4/pB1B3n/KP3r2/4Rbr1 w - - 0 1 illegal: No proof kernel
b1N4k/1N2p1r1/RP1Q1R1B/n2QR1p1/1n3n1P/1b1prRQ1/1K2P3/q3b2b w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bg7 g6 Bf8 g4 Nf6 g7 Qb6 g8R Qc5 g5 Qf5 g6 Qg5 g7 Qf4 Bh3 Qc7 Bf5 Qd8 Bg6 hxg6 Kd2 d5 b4 a5 h4 d3 Kc3 d2 b6 g5 b5 a4 b7 d4+ Kb2 a3+ Ka2 Qa5 c4 Na6 b8Q Nh5 c5 f5 b6 Kf7 c6 f4 c7 f3 Nc3 f2 Rh3 f1B Nf3 Bg2 Ne4 Bh1 Bb2 Rh7 Nc5 Bb7 c8R Nf4 Ne5+ Kf6 Rf3 Nb4+ Kb3 a2 Nc6 Ra6 Qe1 Ba8 Na7 Kg6 Bc3 d1B+ Kb2 Bb3 Qg3 d3 Raf1 a1N Nb7 Qe5 R1f2 Ra5 Qd6+ Qf6 Bd4 Re5 Rc5 Re3 Nc8 Kf7 Rh8 Kg6 g8Q+ Bg7 Qge6 Kh6 Rg8 Bh8 Ra5 Rg7 Qed5 Kh7 Rb5 Bc2 Rf8 Nb3 Rf1 Na5 Ra1 Bb3 Ra2 Nac6 Ra6 Na5 Rc5 Qe6 Rf7 Qd7 Rf6 Qa4 Q5c6 Kg8 Re5 Kh7 Qcd5 Qa2+ Kc3 Qa1+ Kd2 Nc2 Re4 Ng2 Rg6 Rf7 Bg7 Nb4 Bh6 Nf4 Rge6 Bb2 R4e5 Rg7 Rf6 Kh8 Rfe6 Qa4 Rf6 Bc3+ Kc1 Be1 Kb2 Qa1+
2K2krr/BPp1Rpn1/7r/1b1QNQ2/Nb1Q4/n1Qb1qP1/2P2p2/N2Rb3 w - - 0 1 legal: proof: f4 g5 d4 gxf4 a4 e5 dxe5 b5 axb5 h5 g3 h4 Bg2 h3 Qd3 hxg2 Qd5 Qg5 Qd1 Qd8 Kd2 d5 Kd3 a5 Kd4 f3 b4 a4 h4 a3 e4 f2 h5 a2 b6 Be6 b7 Nf6 b5 Na6 b8N Ba3 b6 O-O b7 Kg7 h6+ Kg8 h7+ Kg7 h8Q+ Kg6 Nf3 g1R Be3 Nc5 Nc3 Bh3 e6 Qd6 e5 Na4 e7 Nh5 e8Q Nb2 e6 Bf1 e7 Rg8 Qb5 Qc6 e8Q Bd3 Nd7 Bb4 Qc8 Ng7 Na4 Nc4 Ndc5 Na3 Nb3 Rb8 Ke5 d4 Qd5 Be1 Rh4 Rh1 Re4 Rh6 Rc1 Bb5 Na1 d3 Ba7 d2 Qd4 Qc3 Kd5 Qe3 Re7 Bd3 Nb3 a1B Kc6 Bc3 Kd7 Bb4 Ne5+ Kf6 Qh5 d1B Na1 B1e2 Qf3+ Qf4 Qfd5 Qf3 Rd1 Ba6 Qh7 Bed3 Qc3 Rh8 Qhe4 Bac4 Qed4 Ba6 Qg8 Rf8 Qh7 Rfg8 Re8 Bab5+ Kc8 Ne6 Qf5+ Kg7 Qdb3 Nd8 Re6 Kf8 Re7 Ne6 Qbd5 Ng7
1r3b2/3Pn1pK/2pbnQPR/1R1Bq2p/Qq4Q1/r2Bk2n/1N4nP/4BB2 w - - 1 2 legal: proof: c4 d5 d4 dxc4 a4 e5 d5 b5 axb5 Qg5 Bd2 Qh4 Bc1 Qd8 e4 Be7 Nd2 Qd7 Nb3 Qd8 Nd4 exd4 f3 Bf5 e5 Be4 fxe4 Bf8 Kf2 Ke7 Kf3 f5 Kf4 h5 Kg5 a5 Kg6 c3 b4 d3 g4 a4 d6+ Ke6 g5 d2 d7 a3 b6 f4 b5 a2 b7 f3 b6 f2 Nf3 c2 Ne1 Qe7 Nd3 Rh7 Nb2 Qd6 Qg4+ Ke7+ e6 d1N e5 Qc6 Bd2 c1B Be1 Na6 b8Q Qc4 b7 Bf4 Qa7 Rh8 b8Q Nc5 Qbb6 Qb4 Qa4 Rb8 Rb1 a1Q Rg1 Ra8 Rg3 Ra6 Rd3 c6 Rd6 Nb3 Qd4 Nc5 Qb3 Ra3 Qa4 Kd8 e7+ Kc7 e8B Kb6 Qc3 Ne6 Bf7 Bg3 Qcf3 Kc5 Qf6 Bf4 Ba6 f1N Bc4 Nc7 e6 Nf2 e7 Ne3 e8B Nh3 Bf1 Ng2 Bd5 Ne6 Bf7 Bg3 Be4 Be5 Bed3 Bf4 Nc4 Qe5 Nb2 Nc7 Bd5 Kd4 Re6 Ke3 Rd6 Nh6 Re6 Nf5 Rd6 Rg8 Kh7 Ne7 Qf7 Qb7 Rh6 Ne6 g6 Qb4 Qf6 Qg5 Rc1 Bd6 Rc5 Qe5 Rb5 Nc8 Bfe2 Bfe7 Rc5 Re8 Bf1 Bf8 Ra5 Ne7 Rb5 Rb8
NB1b3b/BRQ1qp1Q/2p2N2/K1P1N3/1q3p1n/2nP1P2/1b2QN1k/1b1rr3 w - - 0 2 legal: proof: e4 b5 g4 d5 exd5 g5 a4 h6 axb5 Bb7 Ra4 Ba6 Bh3 Bc8 Rf4 gxf4 b4 h5 g5 Ba6 Be6 Bc8 Bg4 hxg4 h4 Kd7 c4 Kd6 f3 Ke5 g6 a5 g7 c6 h5 a4 b6 g3 b5 g2 b7 a3 b6 a2 d6 a1B d7 Nf6 g8N Bb2 h6 Nd5 h7 Bg7 Nh3 g1B Qe2+ Kf5 Nf6 e5 Nf2 e4 Nc3 e3 Nb5 Re8 h8Q Kg5 Nc7 Ra1 Qh7 Qe7 d8Q Nc3 Na8 Nd7 b8B Nf8 b7 Bh8 Qc7 Ng6 d3 Nh4 Rh2 Be6 Rh1 Ne4 Kd1 Nc3+ Kc2 Bd5 Bd2 Rd1 Kb3 Be6 Ba7 Bd5 b8N Be6 Nbd7 Bd5 Qf1 e2 Bde3 e1Q Bb8 Be6 Bea7 Qd2 N2g4 Bb6 Nf2 Qe1 Ne5 Ba5 Qd6 Bd8 Kb4 Qd2 c5 Ba2 Qc7 Bb1 Ka5 Qe1 Ka6 Qe4 Qe2 Qb4 Qhe4 Nf5 Rg1+ Kh4 Rh1+ Kg3 Rh2 Qb7+ Ka5 Nh4 Rh1 Qb3 Rg1+ Kh2 Qh7 Rg8 Rf1 Rg1 Re1 Rc1 Rd1 Re1 Rd2 Rcd1 Rc2 Ba3 Rb2 Qc4 Rb3 Bb2 Rb7 Qb4+
bbkr1q2/1N2R2P/N1p1rBB1/2P1p1BQ/qr1r3p/P2QnK2/1N1B4/2n5 w - - 0 1 illegal: No proof kernel
BqR4q/8/rN1Pn3/2ppP3/r1bB4/kqP1RQK1/1bqQpnQ1/6BB w - - 0 1 illegal: No proof kernel
q1q1Q1K1/N3Q1pB/R1r2PRQ/7b/p2N1nP1/PbrRp3/q2n2Q1/k2q4 w - - 0 2 legal: proof: c4 h5 e4 c5 b4 e6 b5 h4 e5 Be7 d4 Bd6 Bg5 Bc7 b6 Na6 bxc7 Kf8 dxc5 f6 g4 fxe5 c6 e4 c5 Ke8 Bf4 Nb8 Bg3 hxg3 Kd2 Ke7 Kc3 Kf6 Kc4 Ke5 h4 a5 a3 b5+ Kb3 d5 f3 d4 h5 e3 h6 g2 h7 e2 Nc3 e1Q Be2 b4 Kc4 b3 Rh2 d3 Rh3 a4 Nb5 d2 Rh6 b2 Rg6 b1Q Qc2 d1B Bd3 Ne7 Na7 Nd5 Ne2 g1Q Nd4 Qh1 Qg2 Bd7 c8R Na6 c7 Nf4 c6 Be8 Rb8 Qd2 c8Q Nc5 c7 Ne4 Qd7 Qc8 Qe7 Qda2+ Rb3 Rg8 h8Q Nd2+ Kc5 Bc2 Rb6 Qbd1 Ra6 Bb3 Qh6 Rf8 Rc1 Rf6 Rc3 Rb8 Bb1 Rb6 Rd3 Rc6+ Kb4 Rc3 Bc2 Qa8 c8Q Qc1 Qc6 Qhd1 Kb5 Bf7 Qce8 Kd5 Kb6 Kc4 Kc7 e5 Kd7 e4 Bb1 e3 Bc2 Ne2 f4 Rc6 f5 Nf4 Bb1 Qcc2 f6 Qcc1 Q7d8 Qcc2 Ke7 Qcc1 Kf8 Qcc2 Rg5 Bh5 Qde7 Qcc1 Rg6 Qcc2 Kg8 Qcc1 Nf3 Qcc2 Rd6 Qf5 Be4 Qfc8 Nd4 Qc1 Rg5 Rc2 Ndb5 Qd1 Bh7 Rc1 Rg6 Rc2 Nd4 Kc3+ Ne6 Kb2 Rd3 R2c4 Nd4 Ka1 Qf7 Rc2 Qe6 R2c4 Qe7 Rc3+
5B2/2N2b1n/q2P1kpb/P5p1/NB3BBr/1QpQ4/2b1qKP1/nrN3Rb w - - 0 1 illegal: No proof kernel
2q1nK1N/r2pp1bR/3n1nRQ/QR2R3/3P2N1/P5p1/2qPr3/2n1BNkb w - - 0 1 illegal: No possible last move
Br1nqQb1/kP1nP2p/4n3/2p1p1B1/1RBqnR1b/3Nr3/B1PKQ2Q/8 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 e4 Ke7 e6 f6 e5 Ba6 Nd2 Bc8 Ndf3 Ke8 e7 Kf7 e6+ Kg7 Ne5 fxe5 Bh6+ Kg6 Bc1 Kf6 e8B Ke7 b4 c5 g4 d5 f4 Kd6 b6 a5 b5 d4 f5 h3 g5 a4 b7 Kc7 g6 Kb6 f6 h2 f7 d3 g7 a3 Nh3 a2 Bc6 d2+ Ke2 Nd7 Nf4 Ne7 g8B Ra3 Rb1 a1N Nd3 Ka7 Rb4 Nb3 Rf4 Bg7 f8Q Bf6 Qh6 Qe8 Rb4 Bh4 b6+ Ka6 b8Q Nd4+ Ke3 Bb7 Qe1 d1Q Qe2 Bc8 Ba8 Nec6 e7 Nd8 b7+ N4e6 Rg1 h1N Rgg4 Ng3 Rgf4 Ne4 Bd2 Qa1 Qhh5 Qb2 Qh2 Qd4+ Ke2 Ng7 Ba2 Nge6 Kd1 Rf8 Q5e2 Rb3 Qd6+ Ka7 Be3 Ng7 Qf6 Nge6 Kc1 Rg8 Qf8 Rh8 Rf2 Rg8 Bg5 Rh8 Rf4 Rg8 Nb2 Re3 Nd3 Nb6 Qe1 Qb5 Rf6 Nc7 Qg7 Nf7 Nf4 Be6 Bfc4 Rb8 Nd3 Nd8 Qf8 Bg8 Qee2 Nce6 Rf4 Qe8 Kd1 Nd7 Kc1 Ng3 Kd2 Ne4+
1Qn2Q1N/p3n2r/1q4N1/BN2bpk1/P3PRq1/bQb2p2/K2PR1b1/1r5N w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 b4 exf4 Bh3 Nd7 Be6 Qg5 bxc5 Qd8 c6 Nb8 c5 Qc7 Bf5 Qa5 Bd3 Qd8 Bc4 dxc4 h4 Ke7 a4 Kf6 e4 g5 h6 b5 h5 g4 c7 g3 h7 f3 c6 c3 h6 g2 Na3 c2 Nh3 g1B Bb2+ Bd4 Nf2 c1B Qb3 b4 Kd1 Bd6 Kc2 Qd7 Kb1 Qg4 Bc3 Kg5 Ka2 B6e5 Nb5 Ba3 Rae1 Ne7 Re2 Nd7 Rh4 Rb8 Nh1 Ba6 c8Q f5 c7 Nb6 Qf8 Nbc8 Bb2 Bc3 Ba1 Rg8 h8N Rg7 h7 Rb6 Ng6 Rb7 h8N Rh7 Nd6 Bc4 Nb5 Bd3 Re3 Bf1 Re2 Bg2 Bb2 Nd6 c8Q Rb6 Qb8 Ndc8 Qbf7 b3+ Ka1 Ba5 Bc3 b2+ Ka2 B5b4 Qb3 Rb7 Bd4 Bc3 Bb6 Qh3 Rf4 Qg4 Ba5 Rb6 Qc2 Rb7 Kb3 b1Q+ Qb2 Qg1 Ka2 Qb6 Qb1 Rd7 Qb4 Rd4 Qb3 Rb4 Qbg8 Rb1 Qgf7 Qb7 Qb3 Qb6
5r2/1pp5/q2BpNbK/QN3Pq1/rNQbn3/2BN2rQ/2P1P2n/5Rrk w - - 0 2 illegal: No proof kernel
1Nb3nB/1rpR2rP/1R1b3p/k1r1qK2/5n2/1BPQBRrB/1qp2P2/4Q3 w - - 0 1 illegal: No possible last move, all moves rejected
6Bq/ppP1kb1Q/1qB4B/6Kq/RN1Q1p1r/1P3P2/2nnq2r/1bQN1B2 w - - 1 2 illegal: No possible last move
1N3rb1/2K1BR2/p4p1r/1B1nB2p/R1Q1bq2/2P2n2/P1QPBk2/2bQ1bq1 w - - 0 1 illegal: No proof kernel
3N2R1/2bq1rPR/kn4pN/b4pp1/1R2Q3/1B2K1P1/4rPRQ/Qb3qqr w - - 0 1 illegal: No proof kernel
1Q1B3n/Q1N3pp/n2q3Q/n2n1pN1/3r1PB1/1KR1bnPB/2P1k1q1/B5r1 w - - 0 1 illegal: No proof kernel
B1r2q2/p1RQ4/PPQ1Nk2/1Kp4n/2n1QBq1/2N2p1n/q3rP2/nb2B1B1 w - - 0 1 legal: proof: b4 f5 d4 h5 a4 e5 c4 b5 g3 bxc4 Ra3 f4 dxe5 f3 Re3 Be7 Re4 Bg5 Rg4 Bf4 gxf4 hxg4 Kd2 Ke7 Kc3 g5 e4 c5 h4 d5 e6 g3 f5 g4 a5 g2 a6 g3 h5 Nh6 e5 Rh7 b5 Rh8 b6 Qg8 f6+ Ke8 f7+ Ke7 Nh3 g1Q Nf4 g2 Bd3 Nc6 Be4 Ng4 h6 Qf8 h7 Nf6 Rh6 Rg8 h8B Na5 Rh7 Nh5 Qa4 Nb3 Qc6 Na1 Bd2 Bb7 Be1 Rc8 Bg7 Ba8 Bh6 Re8 Ne2 Rh8 Bf4 Bb7 Bh2 Ba8 Nf4 d4+ Kb2 d3 Ka3 c3 Ka4 c2 Nc3 c1N Kb5 d2 Bd5 d1N Be4 Qh1 Bg1 Nb2 Rg7 Ne2 Rh7 Nc4 Bd5 Qh6 f8B+ Kd8 Bd6 Qf8 Rc7 Bb7 Nh3 Nef4 Ng5 Qh3 Be4 Qg4 Bd5 Re7 Be4 Nh3 Bd5 Rd7 e7+ Ke8 Ne6 Kf7 Be4 Rd8 Qd7 Re8 Bc6 Bc8 Ba8 Bb7 Qc6 Rc8 Qd7 Be4 Qc6 Kg6 e8Q+ Kf5 Qed7 Bb1 Ng7+ Kg5 e6 Kf6 e7 Rh6 e8Q Qe6 Bgh2 g1Q Bdf4 Qg4 Bg1 Rh7 Qe4 Qeg8 Ne6 Re7 Ng5 Re5 Ne6 Qgf7 Qec6 Re2 Qe4 Qh7 Qec6 Qc2 Qe4 Qd2 Qdc6 Qc2 Qed7 Qa2
3b3R/Kpnqk3/3qNp2/1N1nR3/qPB3n1/2Q2PpP/N1n2r1R/R2Qr3 w - - 0 1 legal: proof: c4 h5 e4 d5 cxd5 a5 g4 hxg4 d4 a4 e5 a3 d6 Ra7 b3 Kd7 Bb2 Ke6 d5+ Kf5 e6 axb2 Kd2 Bd7 exd7 Ra8 Ke1 Kf6 Ke2 g5 Kd3 c5 Kc4 e5 Kb5 c4 a4 e4 h3 c3 f3 c2 b4 c1Q a5 g3 a6 e3 a7 g4 Qb3 g2 Ra3 g3 Qc2 e2 Ra1 e1N Ne2 g1Q Nbc3 b1N Rh2 Qd4 Na2 Nh6 Nec3 Be7 Bc4 Re8 Qd1 Qc7 d8Q Qa3 d7 Na6 d6 Nc2 Qc8 Ng4 d8N Qd7+ Qc6 Rc8 Ne6 Bd8 a8R Qf4 Ra7 Nc7+ Kb6 Qa4 Nb5 Nc3 Ra5 N3d5+ Ka7 Qh6 Nf4 Re1 Ne6 Qe8 d7 Ke7 Bf1 f6 Qc3 Qf4 Bc4 Qd6 Qcd2 Nce3 Qb2 Kf7 Nc1 Nb6 Bb3 Nca8 Qe5 Be7 d8R Rc2 Na2 Qed7 Nbc7 Rf2 Qc3 Nc2 Rh8 Bd8 Bd5 Ke7 Bc4 Qb3 Rf5 Nd5 Nb5 Nac7 Re5 Qa4+
2n1q3/pnP1Q1p1/3R1rbp/rN1R3q/P5qQ/1rB2RKQ/1Q1rB2P/6k1 w - - 0 1 legal: proof: e4 f5 b4 c5 bxc5 d5 Na3 dxe4 Be2 f4 Bc4 Na6 Bf1 Nb8 Nc4 e6 Ne3 fxe3 f4 Be7 g3 Bd6 f5 Bf4 gxf4 Kf8 Ne2 Ke7 Ng1 Ke8 d4 Kf7 c4 Kf6 a4 b5 d5 e5 d6 b4 c6 e2 Kf2 e1R c5 b3 d7 b2 c7 b1R c6 e3+ Kf3 h6 Bd2 e4+ Kg3 e2 Ra2 e3 Qc1 Na6 Nf3 Rb6 Ra1 Rb3 Nd4 Qe7 d8Q Nc5 Bc3 Nb7 Qa3 Bd7 c8R Be8 Qb2 Bg6 c7 Rc1 Be1 Rc5 Bc3 Ra5 Rd1 e1Q+ Kh3 e2 Nb5+ Kf7 f6 Ke6 f7 Kf5 f8Q+ Ke4 f5 Ke3 f6 Kf2 f7 Qb4 Qfe8 Qd2 Qe6 e1Q f8Q+ Qf4 Qg5 Ne7 Rd8 Qde2 R8d2 Re8 Rd6 Nc8 R1d5 Qd1 Qff6 Rhf8 Rg1 Qf3+ Rg3 Qd4 Qd8 Qh5+ Qh4 Rf6 Rf3+ Kg1 Kg3 Re7 Qed7 Re3 Qdh3 Rd3 Qdd7 Qe8 Qe7 Rd2 Be2 Qdg4+
1n3Bn1/pr2Np2/p1B3P1/q1rQ2R1/PQ1Rq3/Q2R1R1r/2k2Pr1/1n1bK3 w - - 0 1 legal: proof: e4 d5 exd5 g5 h4 gxh4 c4 Bd7 d4 Bg4 c5 Bc8 Na3 Bg7 Nc2 Bh6 Nb4 Bf4 Na6 Bd6 cxd6 bxa6 a4 Kd7 b4 c5 g4 h5 g5 e5 b5 e4 b6 h3 b7 h4 g6 h2 Ra3 e3 Bd3 e2 Be4 c4 Nh3 c3 Nf4 h3 Rg1 h1Q Qb3 c2 Be3 Qf3 Rg5 h2 Bd2 h1N Bb4 Rh3 Qb2 Qg4 Rf3 Ng3 Qa3 Nf1 Bc5 Qa5+ Bb4 Nc6 b8Q Nd2 Bc5 Nb1+ Qbb4 Kd8 d7 Kc7 d8R Rb8 Bf8 Rb7 Rd6 Nb8 Rd8 Qh4 Rd6 Bg4 Rd7+ Kc8 d6 Bh5 Nd5 Qg4 Bd3 Qe4 Bb5 Bg4 Bc6 Bh5 Ne3 Bg4 d5 c1R+ Nd1 Rc5 Ne3 Bh5 Nf5 Bg4 Re7 Bh5 d7+ Kc7 Re5 Bg4 Ne7 Kd6 Ref5 Bh5 Rd3 Bg4 Rff3 Bh5 Rg1 Ke5 d8R Bg4 d6 Bh5 d7 Bg4 Rc3 Bh5 Qb5 Kd4 Qbb4+ Rc4 Rf5 Rh2 Rgg5 Rg2 Rcg3 Nc3 Kd2 e1R Rf6 Re3 Rh3 Be2 Ke1 Kd3 Rd6+ Kc2 Rd3 Nb1 Rhg3 Rf3 Rh3 Rf4 Rhf3 Rfg4 Re8 Rc5 d8Q Rh2 Qd7 Rh8 Rd8 Rh3 Qf5 Rgg3 R8d4 Rg2 Qd5 Bd1+
R3K1R1/r1Q5/Q3nBp1/2Q1pb1p/PQq3Pn/1Nr4P/1R2n2k/n1n1Nn2 w - - 0 1 legal: proof: d4 a5 c4 f5 e4 e6 b4 axb4 c5 Be7 Bd3 d5 exd5 Bd6 Be4 fxe4 cxd6 Ra4 Ne2 Ra7 Ng1 Ra8 Kd2 Kd7 Ke3 c5 Kf4 h5 Ke5 b5 g4 g6 f4 b3 a4 b2 h3 e3 f5 e2 f6 e1N f7 b4 f8Q c4 Nf3 b3 Bg5 c3 Qf5 c2 Qd2 c1N Rf1 Nc2 Qb4 Qc7 Ra2 Ne7 Kf6 Na1 Kf7 Qc4 Bf6 Ra7 Nbd2 b1N Rb2 Na6 Ne1 Nc5 Qd3 e5 Rf5 Kd8 d7 Ne6 Rf3 Kc7 d8R Nc3 d6+ Kc6 d7 Kd5 Rg8 Nf5 Ke8 Nh4 Qc2 N3e2 d8Q+ Rd7 Qdb6 Ra7 Rf5 Rhh7 Qa6 Rhc7 Ra2 b2 Nb3 b1N Rb2 Nd2 Qcc3 Ke4 d5 Ng5 d6 Ne6 d7 Nf1 d8Q Rc6 Qc7 Rc5 Rg5 Kf4 Qc2 Kg3 Rf5 Kh2 Rf4 Rc6 Rf3 Qe4 Qcc5 Qc4 Rd3 Nf8 Rd6 Bf5 Rd8 Ne6 Ra8 Qd3 Qcd4 Rc3 Qdc5 Qc4
Q1Nn4/2b2B1r/r4Brp/nrQ2p2/3BPPrP/QpK1N1kb/2Q5/3rR3 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 d4 exd4 b6 Qf6 Bg5 Qe7 Bc1 Qd8 g4 f5 b5 Be7 g5 Bf8 Ra4 Qf6 Rb4 cxb4 gxf6 Ba6 Bb2 Bb7 Bc1 Bc8 Kd2 Kf7 e4 Kg6 f4 d5 h4 a5 c4 a4 b7 b3 f7 d3 b6 d4 c5 a3 c6 h6 c7 a2 Ne2 Kh5 Bh3 a1R Bg2 Kg4 Re1 g5 Rf1 Nc6 b8B Ba6 c8Q Ra5 b7 Nge7 Rg1 Nd8 Na3 Rh7 Nc4 Nec6 Nb6 Bd6 f8Q Rd5 Qe7 Na5 Ba7 Bb8 Qc6 Bc7 b8Q Rd6 Qdc2 Rg6 Qa3 Bc4 Kd1 d2 Nc3 Bf1 Bh3+ Kf3 Ncd5 g4 Ne3 g3 Nc8 g2 Bb2 Kf2 Bb6 Ra6 Qba8 Kf3 Rh1 g1R Qcd6 R1g5 Ba7 Bg2 Re1 Kg3 Ke2 Rg4 Kd3 Bh1 Bf1 Bg2 Bc3 Bh3 Ba1 Nac6 Kc4 d3 Bf6 Na5+ Kd4 d1R Kc3 d2 Bc4 Ra1 Qab2 d1R Bad4 Nac6 Qc5 R1a5 Bf7 Rb5 Qba3 Na5
1Q2Nq1R/2B2p1r/4B3/p1N1nPp1/3nr2B/P2b4/KpQbN2P/B3rkn1 w - - 0 2 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 h5 gxh5 Bh3 d4 Be6 a3 Bc4 Ra2 Bb3 Rb2 Be6 Rb3 Bc8 Rd3 exd3 Kd2 Kd7 Kc3 Ke6 Kb3 Kf5 f4 Ke4 c4 e5 d5 a5 f5 b5 h6 g6 c6 d2 h7 Ke3 c5 Kf2 c7 e4 c6 e3 d6 e2 d7 e1R Nc3 b4 Na4 Bb7 c8N Nf6 c7 Be4 Nc5 Bh6 Ne2 Ng4 Qc2 d1N Nd6 Nc3 c8Q Ne5 Bg5 Qf8 d8B Nbc6 Ne8 Bd3 Qb8 Nd4+ Kb2 b3 Rg1 Ra6 Bc7 Re6 Rg3 Re7 Bh4 Bd2 Bg2 g5 Bd5 Kf1 Rh3 Ndb5 Be6 Nd4 Nc1 Nce2 Ka1 Rg8 h8B Ng1 Kb2 Re4 Ne2 Rg7 Ka1 Rh7 Bg7 Ng4 Kb2 Ndf3 Bc3 Nge5 Kb1 Nd4 Ba1 b2 Ka2 Ng4 Nf4 Re1 Ne2 Ne5 Bf2 Rg7 Rh8 Rh7 Bh4 Nc4 Bd7 Re4 Be6 Ne5
r1N2b1k/1p3K1p/2N2PRb/5qp1/rp1Rrn2/3B2NR/QPn2bP1/3N3Q w - - 1 2 legal: proof: c4 d5 cxd5 f5 e4 fxe4 d3 a5 h4 g5 h5 Be6 Bd2 Bf5 Bb4 Bg6 hxg6 axb4 Kd2 e5 Ke3 c5 a4 c4 f4 c3 g7 Kf7 a5 c2 d6 c1R d4 Kg6 d7 Rc2 d5 Qc7 d8R Kf7 f5 Qc3+ Bd3 Kf6 a6 Ne7 g8N+ Kg7 d6 Nbc6 a7 Nd4 d7 Ng6 Ra6 Qc5 Ne7 Rc4 Rh3 Nf4 Ne2 Qc8 Qh1 Nc2+ Kd2 Rg8 Nbc3 Kh8 Rg6 Bh6 f6 e3+ Kd1 e4 Ng3 e2+ Kd2 Qc5 Nc8 Qf5 Nd1 Rf8 Re8 Rd4 d8N Rg8 Nc6 e1B+ Kc1 e3 Re4 Rc4 Rd4 e2 Kb1 Rd8 Ka2 Bf2 Kb3 e1B Nb6 Rc5 Nc8 Re5 Kc4 Bc3 Na5 Re4 Nc6 Rb8 a8Q Bce1 Qa3 Ra8 Qa2 Ra4 N8e7 Rda8 Nc8 Qd7 Kc5 Qf5+ Kd6 Be3 Qa3 B1f2 Qa2 Ne6 Ke7 Bf4 Ke8 Bd6 Kf7 Nf4 Qg1 Bc5 Qh1 Bcf8
2n2n2/3NQpr1/N1b5/1BNq3p/3Kpbr1/5p2/QPkPRB1P/3bQnN1 w - - 0 1 illegal: No proof kernel forced: bxDB
1B1r1RB1/2Np1p2/PQn2N2/KQPn1k2/2p1pP1r/2n4b/N1B2N2/3b2bq w - - 0 1 illegal: No proof kernel
r1N1rN2/K3Bp2/N2n2bp/3p1qQ1/P1N4R/1b1R3P/1n1P3p/k2rQ1Qb w - - 1 2 illegal: No extended proof kernel
3r2bk/6p1/N1P2b1n/1p1BQ1b1/1prB1qRK/6P1/1Q1rN1Pp/3BNNn1 w - - 0 1 illegal: No possible last move
2q3q1/Qr2kb2/1BQp1R1B/B2BP2N/1p1brn2/pn1P1Q1p/7P/1K3R1b w - - 0 2 legal: proof: g4 c5 b4 f5 gxf5 b5 d3 e5 Nd2 e4 a4 cxb4 axb5 e3 Bh3 exd2+ Kf1 Qe7 Kg2 Na6 Kg3 Qf6 Bf1 Nb8 Kg2 Qd8 Kf3 a5 Ke3 g5 f4 h5 c4 d6 f6 h4 f5 h3 c5 a4 f7+ Ke7 c6 a3 c7 g4 f6+ Kd7 b6 g3 b7 g2 Qa4+ Ke6 Qa7 d1B Kd2 Nd7 b8B Nb6 e4 Qe8 e5 Nh6 Ne2 g1Q Nf4+ Kd7 Bg2 Nf5 Nh5 Bf3 Kc2 Nd4+ Kb1 Bh6 f8Q Nd5 f7 Nb3 Ra2 Qd8 Rf2 Nf4 Rf1 Bcb7 Be3 Bbd5 Bb6 Qc8 Ba5 Be6 Bb6 Bc6 Bd5 Qg8 Rhg1 Rh7 Rg6 Rg7 Rf6 Rg4 Qg7 Bg5 f8B+ Bf7 Qg6 Ke8 Bh6 Ke7 Qf5 Bh4 Qe4 Bf2 Qf3 Bd4 Ba5 Ng2 Bb6 Re4 Ba5 Nf4 Bb6 Qce8 c8Q+ Bb7 Qc1 Qc8 B8c7 Rb8 Ba5 Bc6 Bcb6+ Rb7 Qc4 Bd7 Qc6 Bg4 Qe2 Bf3 Qf2 Bg2 Qf3 Bh1
B1Q5/RN1rBpq1/Q4q1R/PRr1pb2/P3P2b/k3pQp1/5nbK/3Q2n1 w - - 0 1 illegal: No possible last move, all moves rejected
q1B2k2/1ppnb2P/qP6/1b2Np1P/1Q2qNR1/rQ2n3/N4pQ1/1r2N1KR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 exf4 c4 d5 cxd5 Ra6 b5 Ra7 Ba3 Ra8 Bb4 axb4 Kf2 g5 e4 g4 a4 b3 d4 f3 h4 b2 d6 f6 d7+ Kf7 b6 Bg7 d5 Ke7 e5 Nh6 a5 Rh7 e6 Qg8 d8N Bd7 a6 Qf7 a7 Bf8 d6+ Ke8 e7 Qe6 Nc3 b1Q Nc6 Qee4 Ra4 Qbd3 Ne5 Bf5 Qb3 Qc6 Bh3 Qcd5 Na2 Bd7 Qb4 Nf5 h6 Q5e4 h5 Rf7 h7 Bb5 Qb3 Nd7 Rd4 Rd8 a8Q Ne3 Qaa4 Ra8 Qab4 Rg7 Ng6 Ra3 Nf4 Rg5 Rc4 Kf7 e8Q+ Kg7 Qe5 Be7 Qeb2 Kf8 Qe2 Rf5 Qf1 Rg5 Qg2 Rc5 Rd4 Rc1 Rc4 Rb1 Rd4 Ne5 d7 Qc4 d8N Nd7 Nc6 Qg8 Nge2 Qc4 Nec1 g3+ Kg1 Qcd3 Qf1 g2 Ne5 Qe2 Be6 Qc4 Ncd3 f5 Qd6 Qa4 Ne1 Qa8 Qf2 Nf6 Bc8 Nd7 Qdb4 Qa6 Rd6 Qa8 Rg6 Qa6 Rg4 Qa8 Kh2 g1Q+ Kh3 Qf1+ Kh2 Qe2 Kg1 Q2d3 Qg2 Qdc4 Q4c3 Qca4 Qcd2 Q4a6 Qdb4 f2+
Kr1B2Bb/Q2nq1Q1/2Nb3R/3p3p/pP3p1B/P6P/RnBkq1r1/4bR2 w - - 1 2 legal: proof: e4 f5 exf5 c5 c4 b5 d3 bxc4 Bf4 c3 Nd2 c4 Nb1 c2 Bc1 c3 f4 Qa5 Nd2 Qc7 Ne4 Qd8 f6 g6 Ng3 Ba6 Nf5 Bc4 dxc4 Nh6 Ng3 Ng8 f5 g5 Nh5 Qb6 Nf4 gxf4 Ke2 Qa5 Ke1 Qd8 Ke2 Kf7 Kd3 h5 Kd4 e5+ Kd5 a5 b4 d6 g4 a4 g5 e4 g6+ Ke8 c5 Kd7 c6+ Kc7 f7 Kb6 g7 e3 h3 e2 c7 Kb5 c8R Qh4 f6 Qe1 a3 Rh7 Ra2 Nh6 g8B Be7 f8Q Nf7 Bb2 c1B Qd4 c2 Qa7 Ne5 f7 Nbd7 Nf3 Rb8 Qg7 Nd3 Bf6 Bb2 f8B c1Q Rc6 Qcd2 Ne5 Rh6 Ra6 Rg6 Nc6 Rg2 Bh4 Bd4 Rg1 Nb2 Rh1 Qc2 Rg1 Be5 Rh1 B7f6 Be7 Qh7 Bd8 Qd3+ Ke6 Kc4 Rb6 Kc3 Rg1 Qa6 Kd5 Kd2 Rh1 Rg6 Bg2 Rg3 Be4 Rg2 Rf1 Qb7 Beh7 Qf2 Bc2 e1B Ke6 d5 Ra6 Bc3 Kd6 Qe2 Rb6 Qa8 Kc7 Be7 Nd4 Bf8 Rh6 Bc5 Nc6 Qe7 Qa5 Qa6 Qb6 Qae2 Qa7 Ra8 Kb7 Bd6 Qa5 Rb8+ Ka7 Rb7+ Ka8 Bf6 Qa7 Bd4 Qf7 Bh8 Qg7 Rb8+
1Q1r4/2B3k1/3b1NBp/1Rr1qBBn/1Pb2npP/3N1p2/qpn2P1N/Q5K1 w - - 0 2 legal: proof: d4 c5 b4 e5 dxe5 c4 a3 b5 Ra2 Bb7 Rb2 Bxg2 a4 Qh4 axb5 Qd8 Rb3 cxb3 c4 g5 e4 a5 h4 d5 b6 f5 c5 Kf7 c6 g4 c7 f4 c8Q f3 e6+ Kg7 e5 b2 b7 d4 e7 d3 e8B h6 e6 a4 e7 a3 Nh3 a2 Bg5 a1N Nf4 Qd5 Nd2 Nc6 b8B Nd4 Bc7 Ra5 Qb8 Ne6 Bg6 Rc5 Qc1 Nf6 e8N+ Kg8 Rg1 Nh5 Nf6+ Kg7 Be2 Qd4 Nf1 Qe5 Nh2 Bd6 Rh1 Rd8 Qb1 Nb3 Qa1 Bf1 Bf5 Nbd4 Bg6 Qd5 Bd1 Qa2 Bc2 Be2 Rf1 Bd1 Rh1 d2+ Kf1 Be2+ Kg1 Bc4 Bcf5 Nc2 Nd3 d1Q+ Nf1 Na3 Qc1 Re5 Qa1 Bb5 Kh2 Nef4 Rg1 Qd2 Kh1 Qe1 Nh2 Qe2 Re1 Nc2 Kg1 Qe3 Re2 Bc4 Re1 Rd5 Re2 Qd4 Re5 Rb5 Rc5 Qe5 Rd5 Rb6 Rc5 Rc6 Rb5 Rc5
1KnNN1n1/Q2r2P1/1pqqBp2/R1q1p1kP/R2r4/1Q3P2/b1pb2N1/5QQ1 w - - 0 1 illegal: No proof kernel
2r3B1/N1pN2kq/QR2p3/1QqQ4/2K5/Q3PP1p/Np2RP1b/nb1r2nb w - - 0 1 illegal: No proof kernel
1n5Q/1qPQNr1B/p2B2bk/p3Kq2/Q2n4/2R3rp/P2P3p/2bR1BrQ w - - 0 1 illegal: No proof kernel
BR1nrRQ1/RR1Q1n1p/q2B3k/1b2pP2/5q1r/b1Pp4/K2N1rpP/5Q2 w - - 0 1 legal: proof: e4 b5 d4 d5 g4 f5 a4 c6 axb5 c5 Nd2 Kf7 Ndf3 Ke8 gxf5 dxe4 d5 Nd7 Nd4 cxd4 Bc4 Nb8 Bd3 Kf7 Bf1 Ke8 Kd2 Kf7 f4 e5 b4 g5 c3 Kg7 Kc2 a5 Kb2 d3 f6+ Kg6 f5+ Kh6 f7 a4 d6 a3+ Ka2 e3 d7 e2 b6 e1R b5 Nc6 b7 Re4 b8R Rh4 b6 Ba6 b7 Bb5 Nf3 Raa4 Rg1 Raf4 Bg2 g4 Qf1 g3 Nd2 Qg5 d8Q Rf2 Qd7 Qf4 Bh1 Bd6 f8R Nd8 Rb1 Be7 Rb4 Bd6 Ra4 Bb4 Ra7 Bd6 Be4 g2 Kb3 a2 Ba3 a1Q Rf7 Re2 Qc1 Bc6 Rba8 Ne6 b8Q Rf2 Rf6+ Kh5 Qf8 Qh6 Rb8 Qf4 Bb4 Nh6 Bc5 Bb5 Ba8 Qa6 Re1 Ba4+ Ka2 Nd8 Re4 Qe3 Qf1 Qf4 Reb4 Be7 Qg7 Re8 Rf8 Nhf7 R4b7 Bb5+ Ba3 Bb4 Qg4+ Kh6 Qg8 Ba5 Bd6 Bb4+ Kb2 Ba3+ Ka1 Qc6 Ka2 Qa6
rn2k1r1/1Br1p1BQ/B1p1P3/pbqR4/4QBb1/p2N1R2/PR1KP1r1/3n4 w - - 0 2 legal: proof: f4 d5 c4 g5 cxd5 b5 h4 gxh4 Nc3 Bg7 Na4 Be5 fxe5 bxa4 b4 f5 d4 a5 g4 h5 d6 f4 b5 h3 d5 h2 d7+ Kf8 d6 h4 b6 a3 g5 f3 g6 f2+ Kd2 h3 b7 Ra6 g7+ Kf7 Nf3 Rh5 Bg2 f1R Rb1 Qf8 d8R Ra7 d7 Ra8 Bb2 Rh8 Qa4 Rg1 Ne1 Nf6 Qe4 Ng4 Nd3 Rg8 Bc3 Nf2 Rb2 Rc1 Rf1 h1B Bf3 h2 Bg2 Na6 b8B Qe8 Bf3 Nd1 Qh7 Bg2 Bb7+ Bf3 Rf2 h1R Qe4 Rg1 Qh7 Rh8 g8B+ Kf8 Be6 Rg2 Bc4 Rhg8 Bd4 Rc3 e6 Rc1 Bf6 Bg4 Rf3 Rc3 Ba7 Rc1 Be3 Nb8 Bca6 Rc4 Bf4 Rc3 Bd5 Bb7 Bd4 Bc6 Bh8 Bb5 Bdb7 c6 Rc8 Rb3 d8Q Rb4 Qd5 Qd8 Bd4 Ke8 Bg7 Rd4 Rc7 Qd6 Qde4 Qc5 Rd7 Rb4 Rd5 Rd4 Rf5 Rd7 Rd5 Rc7
q1Rq2n1/3Bp1P1/qQpN4/Q1RRnb1k/1r1K1Qrp/4P3/1np4P/2N4Q w - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 b5 axb5 Qd3 f4 Nh6 b3 Nc6 Bb2 Qd8 Bf6 Nf5 g5 Nb8 Qc1 gxf6 g6 Bh6 Qd1 Bg5 fxg5 Nh6 Qc2 Ng8 Qc1 Ba6 Qd1 Bc8 Kf2 a5 Ke3 h5 d4 h4 b6 c6 d5 f5 b7 f6 g7 Kf7 b4 Kg6 b5 f4+ Kd4 f5 b6 f3 d6 f4 d7 a4 e3 c3 Ne2 c2 Nc1 a3 Nd2 f2 Bh3 f1N Ne4 a2 Nd6 f3 Rb1 f2 Rb5 Nd2 Rc5 Qe8 d8Q f1Q Bd7 Qa6 Qf1 Kh5 g6+ Kh6 Qf3 Nc4 Rd1 Nb2 Qh1 a1Q Qc7 Qd8 Rd3 Nf6 g8R Q1a5 Re8 Ng8 g7 Kg6 Ke5 Rh6 Rdd5 Kh5 Rf8 Rg6 Kd4+ Rg5 Re8 Qa1 Rf8 Q6a2 Re8 Ra3 Rf8 Rb3 Re8 Qa8 Rf8 Na6 b8Q Nb4 b7 N4d3 Qa5 Ne5 Qbc7 Qa2 b8Q Rg6 Qbb5 Rb4+ Qc4 Qa4 Qcb6 Qb5 Kc3 Qba6 Qf4 Rb5 Kd4 Rb3 Be8 Bf5 Bd7 Rg4 Re8 Qc7 Rb8 Qd8 Rc8 Rb4+
1rQ1q3/Q1Qp1pr1/r1B1p1n1/n1pb1R2/4QNRB/4P1nK/4RPP1/5q1k w - - 0 1 legal: proof: c4 b5 cxb5 g5 b4 a5 h4 gxh4 b6 Na6 b5 Bb7 Na3 Nb8 Nc2 Bc8 d4 c6 b7 Bh6 d5 Bg7 Nb4 axb4 d6 Bd4 Qc2 Bb6 Qd1 Bc7 dxc7 Ra6 Bh6 Ra4 Bc1 Ra8 a4 h5 e3 b3 a5 b2 b6 b1Q a6 c5 a7 e6 Ba3 Ke7 Bb5 Kf6 Kf1 Ke5 Rh2 Ke4 Bb4 h3 Ra2 h4 Ne2 Qe8 Nf4 Ne7 Re2 Nbc6 b8R Ng6 Bc3 Na5 Kg1 Bb7 c8Q Bd5 b7 Rg8 Qf1 Rg7 Bf6 Qd1 Bc6 Qc1 Nh5 Kd3 Qc7 Qc4 Qa1 Qa6 Rc8 Rb8 a8Q Qc4 Qa7 Qb5 Rh1 Qa6 Qae5 h2+ Kf1 h3 Bh4 Qe7 Rg8 Qe8 Rg1 h1N Qe4+ Kc3 Nf4 h2 Rh8 Qd3 Rh5 Qb5 Rf5 Ng3+ Ke1 h1R Qc8 Ra8 b8Q Rh3 Qac7 Ra6 Rh1 Rh2 Qba7 Rh3 Be7 Rh8 Rh4 Rf8 Rg4 Rfg8 Kd1 Rf8 Re1 Qf1 Bh4 Qc4 Q8d8 Qe7 Rgg5 Re8 Qda8 Rc8 Q8b7 Rb8 Qcc8 Qe8 Qbc7 Nh1 Rg3 Qb5 Rg4 Qb1+ Ke2 Ng3+ Kf3 Kd2 Re2+ Kd1 Rgg5 Qd3 Rd2+ Ke1 Kg4 Kf1 Kh3 Kg1 Rg4 Qf1 Re2 Kh1
R1r4n/1rP3r1/Q1p2N2/3pr1nR/K1P1pN1R/2Q4N/b2P2pq/qk3B1N w - - 0 1 legal: proof: e4 f5 exf5 a5 g4 h5 b4 hxg4 b5 e6 b6 c6 Ba3 Bd6 Bb4 Bc7 bxc7 axb4 f4 Kf7 h4 Kf6 a4 b5 c3 g5 a5 g3 a6 e5 h5 g2 h6 e4 h7 b3 a7 b2 Ra5 g4 Qc1 b4 Kd1 b3 Ra2 g3 Qc2 Ne7 Nh3 Re8 h8R g1R Rh4 Na6 Ra5 Rb8 a8Q Nc5 Qa6 Ng6 Qc1 d5 c4 Re5 Ra1 Ne6 Nc3 b1R Ne2 b2 Kc2 Qd6 Ra2 Ra8 Kb3 Nh8 Qc3 Ng5 Ka4 Bd7 Rh2 Rc8 Ra3 Be8 Rh1 Bh5 Ra1 Kf7 f6 Ke6 f7 Kf5 f8N Bf3 Nh7 Bg4 Nc1 Bd1+ Nb3 Qh6 Nf6 Qh5 Ra3 Qe2 Ra1 Qh2 Ra2 Ke6 f5+ Kd6 Ra3 Bc2 Ra1 Bd3 Nd4 Kc5 Ne2 Bc2+ Ka3 Bb3 Rh5 Ba2 Ka4 Rg2 Rh4 Rf2 Rh5 g2 Ng3 Rf3 Ng8 Rf2 f6 Rf4 f7 Rg4 Qa3+ Kd4 f8N Ngf7 Rh4 Rg7 Nf6 Ng5 Qb4 Rce8 Ng6 Rc8 Ne2+ Kd3 Ngf4+ Kc2 Ng3 Rd1 Qa3 b1Q Qe3 Qb2 Rh5 Rb1 Qd4 Qg1 Rh2 Qc1 Nh1 Rb7 Qe3 Bb1 Ra3 Ba2 Qc3+ Kb1 N3f2 Rb3 R2h4 Qh2 N2h3 Rb2 Rb3 Qe1 Rb8 Rb7 Ra8 Qc1 Rb8 Qb2 Ra8 Qa1
1K6/4N2N/b1pkBqQ1/Bp1rr2p/bP6/b1PQR1BP/2p1b3/2NBq1n1 w - - 0 3 legal: proof: d4 e5 dxe5 g5 f4 gxf4 a4 b5 a5 Na6 Ra3 Nb4 Ra2 Bh6 Ra1 Bf8 c3 d5 b3 d4 Ra2 d3 Rc2 Nd5 b4 Nb6 axb6 dxc2 Kf2 Ke7 Kf3 h5 Ke4 a5 g4 f3 h3 f6 b7 c6 b8B a4 g5 f2 g6 a3 g7 a2 e6 a1Q Nd2 f5+ Ke5 f4 e4 f3 Be2 f1B Nb3 f2 Be3 Qc1 Bb6 Qd7 Ba5 Qd8 Qd3 Qe1 Nf3 Nf6 g8N+ Ke8 e7 Nh7 Bd1 Ba6 Nc1 Be2 Ng5 f1B Bd6 Kd7 e8B+ Kc8 Bf7 Kd7 Ba2 Bh6 Ne7 Re8 Rg1 Rc8 Rg3 Bg2 Re3 Bgf3 Bb1 Bg4 Ba2 Be6 Bb6 Bb3 Ba5 Ba4 Bg8 Nf8 Nh7 Ne6 Bf7 Nf4 Bc4 Bg4 Bd5 Ne2 Bb8 Rf8 Bbc7 Ng1 Be6+ Ke8 Bb8 Rf2 Bbc7 Rd2 Bd6 Be2 Bb8 Qb6 Kd6 Qa7 e5 Qd4+ Bd5 Bg5 e6 Qf6 Bc4 Rd8+ Kc7 Rd5 Qg6+ Qf7 Rg3 R5d3 Na2 Bh4 Qe4 Qf5 Ng6 Bf6 e7 Rd6 Bg8 R2d4 Qd3 Bg5 Bb3 Bd2 Re3 Bc1 Bg8 Bb2 Nc1 Ba3 Bc4 Re6 Bd5 Kf7 e8Q+ Kg7 Ne7 Qf6 Qc8 Ree4 Qf5 Re6 Bc4 Kf7 Qg4 Ke8 Ba2 Ree4 Be6 Rd5 Qg6+ Qf7 Kb6 Kd8 Bg3 Re5 Ka7+ Ke8 Qg5 Qf5 Kb8 Qf6 Bg8 Kd7 Be6+ Kd6 Qh6 Bb2 Qhg6 Ba3
2Q3rn/R6p/1k1B1qBP/1P1pQPN1/1pbR2Rn/1Q4p1/3b1p1K/1r3nQ1 w - - 0 1 illegal: No possible last move
N2N2rK/Q1RP1P2/nBp3p1/pqrb1Q2/6Bp/5BbP/1k3b1p/1n2N1B1 w - - 0 1 illegal: No proof kernel
1k2q2B/2N4R/1b1Q2pr/2p1K1P1/Nn1BP1N1/Br2p3/1pPp1QB1/3nbb2 w - - 0 2 legal: proof: b4 e5 a4 a5 g4 axb4 e4 f5 g5 h5 exf5 e4 f6 e3 d3 Qe7 Nd2 Qe4 dxe4 Ra5 Nh3 Ne7 Rg1 Ra7 Rg4 hxg4 Ng1 Ng8 Qe2 Kf7 Bb2 Ra6 Ngf3 Nh6 Bg2 Rd6 Kf1 Rh7 Rd1 Rd4 Bc1 Ng8 Re1 Rh3 Qd1 Ke8 Ke2 Rd6 Rh1 Rd5 Ng1 Rh8 Bf1 Ra5 Ke1 Ra8 Ke2 Kd8 Kd3 b5 Kd4 d5 f4 g6 h4 g3 a5 b3 f5 b4 f7 b2 a6 b1Q f6 b3 h5 g2 h6 Ne7 a7 Ba6 h7 Kc8 Ngf3 g1B Be2 Bf2 Nc4 Be1 Ke5 d4 Nh2 d3 Bf3 Nd5 Bg2 Bc5 f8B Nc3 f7 Bb6 Bg7 c5 f8Q+ Kb7 Qd2 Nd1 Qdf2 d2 Nb2 Bf1 Qd6 Na6 Na4 Rab8 a8N Nb4 Ba3 b2 Bf6 Qa2 Ng4 Qf7 Nc7 Ka7 Rh5 Rb7 Rh3 Kb8 Bg7 Rf8 h8B Qe8+ Qe6 Rf3 Rh7 Rh3 Qe7 Qf7 Qd6 Qe8+ Kf4 Rh6 Bd4 Ba5 Qe6 Rb5 Ke5 Bb6 Qe7 Na6 Qe6 Rb3 Qe7 Nb4 Qe6 Qf8 Qd6 Qe8+
knqb2Q1/1b3p1Q/5PpN/1Rr2p1Q/2prp1R1/2N3QK/2n2PP1/2nB1R2 w - - 1 3 illegal: No proof kernel
Bk5B/pNppn3/P1r3b1/1Qp1RN2/3nKQ1b/rPq3pn/N2P3Q/N7 w - - 1 2 legal: proof: e4 g5 f4 f5 exf5 b6 c4 Ba6 c5 bxc5 Qb3 Bb7 Qd1 Bc8 fxg5 h5 g4 Bb7 g6 Ba6 g5 Bc8 a4 Nh6 Ra3 Ng8 Rg3 Bb7 Rg2 Bc8 Rg4 hxg4 Kf2 e5 Ke3 e4 h4 g3 g7 Qf6 a5 Kd8 g6 Nh6 g8N Rh7 b3 Qg7 h5 Bb7 a6 Kc8 f6 Nc6 f7 Rh8 Ne7+ Kb8 Nc3 Ne5 Nge2 Nf3 Bg2 Bc8 Bb2 Ne1 Nd4 Qe5 g7 Ng8 h6 Bb7 h7 Qf6 Qh5 Nd3 Nef5 Ne7 g8Q Nf4 Na2 Nh3 Nc2 Qg7 Qe2 Qc3+ Qd3 Bd5 Qg5 Bh6 f8N Bf7 Na1 Bg6 Qf4 Bg5 Rb1 Bh4 Ne6 Rf8 Rg1 Rf6 Nd8 Rb6 h8Q Rc6 Ke2 e3 Kf3 e2 Ke4 e1N Qb5+ Kc8 Bf3 Nc2 Re1 Rb8 Qhh6 Rbb6 Nb7 Kb8 Bh1 Rd6 Qh5 Rbc6 Qhe2 Rd3 Qh2 Rf3 Re2 Rf1 Bg2 Qa5 Bh8 Nd4 Kd3 Rc1 Re5 Rc4 Bd5 Ra4 Ke4 Qc3 Nd6+ Rb6 Ba8 Ra3 Nb7 Rc6
RNn1k3/1Q5b/KBp1B2P/1nP3rb/p1R4Q/P2RrQq1/2p1pp2/1Q4b1 w - - 1 2 legal: proof: f4 b5 g4 h5 gxh5 d5 e4 g5 exd5 gxf4 c4 Nf6 c5 Ng8 Na3 Bg7 Nc4 bxc4 Nf3 Bh6 Ng1 Bf8 Ke2 a5 b4 e5 d4 f5 h4 c3 Kd3 c2 Kc4 e4 Kb5 e3 d6 f3 h6 e2 h5 f4 h7 f2 d5 f3 d7+ Ke7 d6+ Kf7 h6 Qe8 Bf4 Ra6 Bh3 f1B Be6+ Kg6 Qb1 f2 Nf3 Bb7 Nd4 Ne7 Rh4 Be4 Nc6 Rg8 d8Q Bfg2 h8Q Bgf3 d7 Bh5 Qc3 Nc8 Qf3 Bd6 Qe7 Qf7 d8R Qg7 Bd2 Bf5 Rc4 Bh2 Qh4 Bg1 Rd3 Ra8 Be1 Na6 Nb8 Qe5 Bc3 Qg3 Bf6 Be4 Bd8 c6+ Ka4 Rh8 b5 Rg8 b6 Nc7 b7 Nb5 Bb6 Bf5 Na6 Ra7 b8Q Re7 Qb7 Rgg7 Nb8 Rg8 Bd7 Kf7 Be6+ Kf8 a3 Rg6 Ra2 Rg5 Rb2 Rc7 Rbb3 Ke7 Rd8 Bh7 Rbd3 Rd7 Kb3 a4+ Kb4 Rc7 Ka5 Rd7 Qa8 Rd5 Ka6 Re5 Rf8 Re3 Qb7+ Qc7 Nd7 Qg3 Rd8 Nca7 Ra8 Nc8 Nb8+ Ke8
1k1KR3/1p5p/PrQ1n2B/ppPq4/1r1bB2n/N1r4Q/4bNpP/NN3B2 w - - 0 1 illegal: No possible last move
N1rbQr2/1rp2p1R/1pBK1np1/4p1BR/3R3b/1P2qBQ1/R2P1P2/4k1n1 w - - 0 2 illegal: Other
1Q3R1R/3k2p1/r4bP1/1N2npb1/pN2pQ1K/8/pPRr1Pq1/B1q1NnR1 w - - 0 2 illegal: Other
3R3n/5p1b/3b1q1R/B1pB2KP/1B2r3/pP2kP2/r2ppN1B/Q1Rn1q1Q w - - 0 1 illegal: No proof kernel
2NR1qk1/pQr2p1R/N5N1/P5p1/5PP1/1R1q1Nn1/b2p2p1/nnQB1bK1 w - - 0 3 legal: proof: d4 c5 b4 cxb4 c4 d6 c5 Na6 c6 h5 g4 h4 Bf4 Rh6 Be5 Rh8 Bg3 hxg3 e3 b5 Qb3 g6 Qc2 d5 Qd3 Be6 Qd1 Bh6 c7 Bf4 Qc2 Bd6 Qa4 Bc5 dxc5 d4 Qd1 d3 Nc3 Rb8 Nb1 Rb6 Qb3 Rd6 Qd1 Rd4 exd4 Bf5 Nf3 Bc8 Ng1 Be6 c8N Kf8 f4 g5 a4 b3 h4 b4 h5 b2 a5 g2 Kf2 d2 h6 b3 d5 Nb4 h7 Nh6 d6 Nc2 d7 Bc4 c6 e5 c7 e4 Be2 Nf5 Nc3 b1N Nd5 b2 Ra3 Ng3 Nf3 e3+ Kg1 Na1 Qc1 Bb5 Bd1 e2 Nb4 e1Q+ Kh2 Qe5 Rb3 Qe4 Na6 Bf1 Kg1 Qd3 Rh4 Rg8 h8N Rg6 Rh2 Rc6 Rh7 Kg8 Ng6 Qf8 d8R Rc2 Nb6 Rc5 c8Q Rc7 Qb8 Nc3 Qb7 b1B Nc8 Ba2 Rd7 Nb1 Rd5 Qe2 Rd8 Qd3
1n1k1NQ1/1pp2n2/qP3p1p/2R3QP/P1nb1N2/nQ1K4/Qpb2r1R/1N5B w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 exf4 b5 Nh6 Ba3 Ng8 g4 f6 g5 Kd7 Bb4 axb4 g6 Ra3 Qa4 Re3 Qc2 Re7 Qd1 Rf7 gxf7 Ke7 Qc2 Kd6 Qd1 Kd7 a4 g5 d4 b3 Kd2 g4 h4 h6 e4 g3 h5 g2 e5 f3 e6+ Ke7 b6 b2 Nh3 g1N Nf4 f2 Bg2 f1N+ Kd3 Ne2 Qb3 Nc3 Rh2 Nb5 Bh1 Nd2 Ra3 Qd7 d6+ Kd8 d5 Nc4 Ra1 Be7 f8N Nba3 Qa2 Qb5 d7 Qa6 Qb3 Nc2 Ra3 Bb4 Qa2 Ne7 Rc3 Rg8 Qb3 Qa5 Qa2 Nf5 Qb3 Ncd6 Rc5 Na3 Qa2 Nf7 Qb3 Ke7 Qa2 Rg2 Qb3 Kd6 e7 Ne3 e8Q Nec4 Qe3 Qa6 d8Q+ Bd7 Qg1 Rf2 Qg5 Bc3 Qc8 Ke7 Qa2 Bc6 Qh3 Bd7 d6+ Kd8 Qe3 Bg4 d7 Bd4 Qf3 Bc3 Qd1 Bd4 Qdb3 Bd1 Qf5 Ke7 N8e6 Kd6 d8Q+ Nd7 Qg8 Ke7 Qe5 Nb8 Nf8+ Kd8 Qeg5 Bc2+
Q7/2K1p1pQ/1p1p3n/n1np1N2/1r1NBrQ1/1P1nPQPR/2N2r2/2B2k1q w - - 0 1 illegal: No proof kernel forced: wxDB
2b2Q2/1pp3RN/NQ6/3p3p/1bPPp1QR/1Qrkp3/1B1pr1PK/n2R2q1 w - - 0 1 illegal: Other
1RQ1BB2/4Qprp/1p3nN1/p2B4/p2b1Q1p/PPnb3Q/K3q2P/N1rk2b1 w - - 0 1 illegal: Other
5nR1/R5N1/1rPqr2R/2qP1B1n/RqQ2P1n/2r1B3/2r3R1/3RnK1k w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 a4 b6 h4 gxh4 b5 Ra7 Nc3 Ra6 Nd5 Ra7 Nb4 axb4 a5 Ra6 axb6 Ra8 c4 d5 Rh2 c5 Nf3 d4 Ng1 Bb7 Rh1 Bd5 cxd5 c4 Rh2 c3 Ra6 c2 Ra2 b3 Rh1 Bh6 Ra5 Bf4 Ra1 Bd6 Rb1 Bb4 Ra1 Bc3 dxc3 Qd6 Ke2 Qc7 Ke1 Qd8 f4 Kf7 g4 Kf6 c4 h5 b7 e5 c5 e4 b6 d3 c6 h3 Ra3 e3 Ra2 e2 Be3 c1R Rb2 d2+ Kf2 e1N Rh2 h4 Ra2 b2 Ra5 b1R Qc2 d1Q Qb2+ Qd4 Ra7 Nh6 Qe2 Qc5 Rg2 h2 Nh3 h1Q Ng5 h3 Qc4 h2 Bd3 Rc3 Ne6 Re8 Ng7 Nd7 b8R Nf8 b7 Re6 Ke2 Rb6 g5+ Ke7 g6 Kf6 Rc8 Qdd6 b8R Qb4 Ra4 Qg1 Rc7 h1N Bc2 Ra5 Ra7 Rc5 Rba8 Qb2 Ra1 Qb4 Rd1 Ng3+ Kd2 Nh5 Ke2 Nf7 Ra4 Ne5 R8a7 N5f3 Bd3 Qd7 Be4 Nh4 Bd3 Ke7 f6+ Kd6 f7 Ke7 Nf5+ Kf6 g7 Qc7 g8R Qd6 Be4 Rc2+ Bd2 Qd4 Ng7 Qdc3 Kf1 Qe3 Qa2 R5c3 Qc4 Qec5 Be3 Rb2 Bb1 Rbc2 Ne8+ Kf5 R8g6 Qd4 Ng7+ Ke4 Rf6 Kf3 Rh6 Ra2 Bg6 Qd4c5 Bf5 Rac2 Re2 Nd7 f8R Kg3 Rb8 Nf8 Rg2+ Kf3 Rba8 Nfg6 Rg8 Nf8 Rgd2 Kg3 Ke2 Kh2 Kf1+ Kh1 Re2 Qe5 Rg2 Qed6
6r1/bRRN1kN1/1Br1NP2/r1n1P3/p1p2K2/1N4N1/5P2/qnR1Bqn1 w - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 g5 axb5 g4 d6 g3 hxg3 Bh6 g4 Bg7 g5 Bf8 e4 f6 g4 Bf5 d5 Bg7 Bg2 Bf8 Qd4 exd4 e5 Bg6 Be4 f5 Ke2 fxe4 Ke1 Bf5 gxf5 Qf6 Nh3 Qe7 Ng1 Qd8 Ke2 a5 b4 c5 g6 h5 d7+ Ke7 b6 d3+ Ke3 c4 b7 d2 g7 d1N+ Kf4 a4 f6+ Kf7 d6 h4 b5 h3 b6 h2 Bd2 e3 Ne2 Ne7 g8N Nf5 Be1 Nc3 Ng3 e2 Nd2 Nh4 Ne7 Nb1 Nef5 Na6 b8R Nc5 b7 Ra5 Ng7 Rg8 Nb3 Nf3 Rg1 Qb6 d8B h1R d7 Rh7 Bc7 Qe6 Bb6 Qh3 Rh1 Qf1 d8N+ Kg6 Nde6 Ng1 Rc8 Kf7 b8N Bd6 Nd7 Bb8 Ra3 Ba7 Rc7 Rhh8 Ra1 Rc8 Rb7 Rc6 Rh7 Rg8 Rc7 Na3 Rc1 Nb1 Bc3 e1Q Rb7 Qd1 Be1 Rb8 Rh8 Ra8 Rc8 Rb8 Rcc7 Rg8 Kg5 Qd4 Kf5 Qb2 Kf4 Qa1
1nb1K3/2n3bN/5Bnr/N3Nn1B/1P2r1Pb/3P2RR/4kq1q/R1q2RR1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 h5 f4 g5 Qf3 gxf4 Qd3 h4 Qg3 hxg3 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 e5+ d6 a5 b4 e4 f6 a4 b6 a3 d3 a2 f7 g2 b7 e3 Nd2 f3 h4+ Kf4 h5 e2 h6 Ke3 h7 e1B Bb2 f2 Ngf3 g1Q Ne5 Ne7 d7 Bg7 f8N Ng6 Bg2 f1N Bc6 Ng3 Nb3 Qh2 Na5 Nf5 Rg1 Qdh4 d8R Q4f2 Be8 Ke2+ Kb5 c5 Rd5 Na6 Kc6 c4 b8R c3 Rd6 c2 Rf6 c1N Rb7 Nb3 Re7 Nc7 Rg3 Bb7+ Kd7 Nbd4 Rg1 Nc6 Rff7 Rg8 h8R Ra6 Rh3 Nb8+ Kd8 Bc8 Nh7 Re6 Rf8 Rh8 Ref7 Nfh4 Rff3 Nf5 Rfg3 Re7 Nf3 Re4 Bf6 Nd5 Ne5 Nc7 Ng5 Rh6 Nh7 Ngh4 Bh5 Ng6 Rb1 a1Q Rd1 Nca6 Ke8 Qc1 Rf7 Bd2 Rdf1 Bg5 Rc7 Bh4 Rc6 Qce1 Rc1 Qd1 Rb1 Qc1 Ra1 Nc7+
2B3r1/1b1P1P2/1K2Pb1B/2R1N3/r3q3/2BnRr1R/1qN1bknR/2rR2n1 w - - 0 1 legal: proof: g4 d5 e4 b5 d4 e5 a4 h5 gxh5 Be6 axb5 Bc8 c4 f6 Qf3 f5 cxd5 exd4 e5 Qe7 Qg2 Qd8 Qe4 fxe4 Ke2 Kf7 b4 g5 f4 a5 h4 c5 d6 Ke6 f5+ Kd5 b6 g4 h6 a4 d7 e3 Kd3 g3 h5 c4+ Kc2 Ke4 b5 d3+ Kc3 d2 b7 d1B h7 g2 b6 e2 e6 e1R f6 a3 h6 a2 f7 Be2 Rh2 Bg7+ Kb4 c3 Kc5 c2 Nf3 g1N Na3 Bf6 Ne5 Nc6 b8R Nb4 b7 Ra4 Bd2 c1R+ Nc2 Qe8 Kb6 Nd3 Ra8 Ne7 b8R Bb7 Ra5 Qf8 Rc5 Rg8 h8R Ng6 h7 Nh4 Bh6 Ng2 Rb1 a1Q Ra8 Rd4 Ra3 Ra4 Rac3 Qb2+ Rb3 Rcd1 Rh3 Rd2 Rd1 Qa8 Rh2 Bg4 Rh3 Rf2 Be2 Rf3 Rh2 Ndf4 Ba6 Nd3 Rh3 Bc6 Bc8 Bb7 Bf8 Kf4 Rh2 Kg3 Bh6 Nb4 Re3 Kf2 Rd4 Rc1 Rd1 Rg7 Rd8 Bh5 h8B Rg4 Rg8 Rgg3 Rg4 Nd3+ Rb4 Rg8 Rb3 Rf5 B8g7 Be2 Reh3 Rf3 Bh8 Nb4 Re3 Nd3+ Nb4 Bg5 Nc6 Ba6 Bc3 Bf6 Ne5 Qe4 Rc4 Qa2 Rc5 Bb7 Nc2 Qb2+
r2nB1r1/RrPNK1B1/n2r3q/2B1Pn2/1P1bB2b/7n/2n1BB1k/1R2Q3 w - - 0 1 illegal: No possible last move
2R2b2/R1BPK3/3N1Nr1/PBr1nq2/r1P1B3/n4r1R/3nqr2/1B1rB1k1 w - - 0 1 legal: proof: d4 c5 dxc5 g5 h4 a5 b4 axb4 hxg5 Qb6 Nf3 Qc7 Ng1 Qd8 e4 f5 Qe2 d5 Na3 d4 Nb1 Be6 Qf3 Bd5 exd5 Nd7 Qd3 Nb8 Qe4 fxe4 Ke2 Kf7 f4 Kg6 a4 Kf5 c4 Kg4 f5 Kg3 g6 h5 f6 b5 d6 e5 f7 e3 Kd3 Kf2 Ke4 e2 Kf5 e1Q Ke6 b3 g4 b2 d7 d3 g5 e4 g7 b4 c6 b3 c7 d2 c8B d1R g6 e3 Nf3 e2 Bh3 h4 Nc3 b1R Bg4 h3 Bf4 h2 Ne5 b2 Nb5 Qg5 Ba6 Nc6 Bf5 Rh3 Be4 Rf3 Nd6 Nf6 g8B Qd2 g7 e1R Ra3 Rg1 Bb5 Qe2 Bgh7 Rd2 g8R Rbd1 Rh8 b1N Ng4+ Kg2 Bg3 Ne5 Be1 Qf4 Ra2 Na3 Bb1 Ne4 Nf6 Rc2 Bg6 Nd2 Be4 Rc8 Ra1 Rc5 Rg8+ Bg7 Ke7 Qf5 Rc8 Rb2 f8B Rb4 a5 Ra4 Ra2 Rf1 Rb2 Rf2 Rb3 Bh8 Bh6 Bg7 Bf4 Bh6 Ba6 Bg7 Rb7 Bh6 Bb5 Bg7 Rf1 h1R Ra7 Rh6 Rh1 Rg6 Rh3 Kg1 Be3 Rc7 Bb6 Rc5 Bc7 Bf8+
1n5r/Nn2PN1q/k2n1R1R/bN3rPr/5B2/N6n/P4q1N/1BRn2rK w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 g5 fxe5 Qf6 Qc2 Kd8 Qe4 Qe7 Qf4 gxf4 h3 Ke8 g5 Bg4 hxg4 Qd8 Kf2 Kd7 Kg2 Kc8 e4 c5 d4 f5 d6 h5 e6 b5 g6 Kb7 g7 c4 g5 h4 e7 c3 e8R c2 e5 h3+ Kh2 b3 e6 f3 d5 f2 d7 f4 d6 f3 Nc3 b4 Bc4 f1R Bb5 b2 Rb1 f2 Bc4 b3 Nge2 Qe7 Bd5+ Ka6 d8N Rh5 d7 Nh6 g8N Qh7 Ra1 b1N Re7 b2 Be4 Nf5 Rf7 Bb4 e7 Nd6 Nc6 Ba5 Nb5 Nc3 d8N b1R Ned4 Nd1 Bf4 c1N Nc2 Nb3 Nca7 Nc5 Nh6 Ncb7 Nca3 Rg1 Rf5 f1Q Ng4 Rc1 Nf7 Rc5 Rf6 Rf5 Rc1 Qf2+ Bg2 Rf1 Rg1 Re1 Kh1 h2 Be4 Qb6 Kg2 h1N Nh2 Nhf2 Bb1 Nh3 Kh1 Qf2 Rf1 Nd7 Rg6 Rh8 Rh6 Nb8 Rf6 Re2 Re1 Rb2 Ree6 Rb3 Rh6 Rg3 Ref6 Rg1#
2bqr3/P2qb1R1/2NQ1rqR/3nR3/R6R/KPB1R2B/Pqr5/kr3q2 w - - 0 1 illegal: No possible last move, all moves rejected
Q1R5/N3Rq1R/3P1nR1/P2n1k2/nrbP4/n4N1R/K1r1qr2/3q1RqB w - - 0 1 illegal: No possible last move
1N3N1n/8/2B4q/n1NP2rN/1Q4rR/p1rrk1NK/P1P4N/Rrb2nb1 w - - 0 1 legal: proof: f4 d5 g4 c5 b3 c4 bxc4 e5 cxd5 exf4 d6 Qa5 Bg2 Qb6 Bf1 Qd8 Bg2 f5 Bf1 f3 Bb2 h6 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kd7 e4 Kc6 h4 Kc5 f6 Kd4 f7 a5 d7 b5 e5 b4 d3 b3 h5 b2 h6 a4 e6 g4 h7 g5 e7 a3 e8N g3+ Ke1 f2+ Ke2 g4 Rh4 g2 Qe1 g3 Kf3 Ra4 Kg4 f3 Nd2 b1R Be2 f1R Nd6 f2 Ngf3+ Ke3+ d4 g1R N6e4 g2 d5 Bh6 f8N Qb6 d8N Ne7 Kh3 Ng6 Ng3 Nc6 Nh2 Na5 Nc6 Rg4 Nde4 Rg5 Qb4 Rfd1 Bf1 Rd3 Nb8 Rg8 Be2 f1N Nc5 Nh8 Bg4 Rh1 Bd7 g1B Bc6 Rg4 Nh5 R8g5 Ng3 Nf7 h8N Rc3 Nhg6 Nh8 Nh5 Rd1 Ngf4 Rdd3 Ng3 Rh5 Bd7 Kf2 Bb5 Nd2 Re1 Bg5 Rc1 Qh6 Ng2 Bf4 Qb3 Rhg5 Ra1 Be3 Nf1 Ke2 Be8 Bgf2 Bc6 Rg1 Qb4 Bf4+ Nf3 B2e3 Ng3+ Kf2 Nfd7 Rb1 Nf8 Nf1 Nh2 Bd4 Rh5 Bc1 Rh4 Bde3 Nf4 Bd4 Nh5 Bde3 Nge4+ Ke2 Neg3+ Kd2 Nb7 Bg1 Nc5 Ke3
1n4n1/1Pqn2nk/1b1b3N/NnB5/B2KPr1p/r1B5/2B2BPN/2bR1R2 w - - 0 1 legal: proof: f4 b5 c4 g5 a4 gxf4 axb5 d5 cxd5 e5 h3 Bg4 Qa4 f3 Qf4 exf4 hxg4 Bb4 Nh3 Ba3 Ng1 Bf8 Kf2 a5 e4 f5 d4 Kf7 b4 Kg6 g5 c5 b6 h5 d6 a4 d7 c4 b7 h4 d5 a3 d6 a2 b5 c3 b6 c2 Nh3 Ra3 Bb2 c1B Bb5 Qc7 d8N Kh7 d7 Bd6 Ke1 f2+ Ke2 f1N Bc3 f3+ Kd3 f4 Ng1 f2 Nd2 f3 Nb3 Nh2 Na5 f1N Kd4 f2 Ba4 Ne3 Nf3 f1N Nf7 Nc4 d8B Ne5 Nh6 Ne3 Be7 Nhg4 Nh2 Ned7 Rd1 Nge5 g6+ Kg7 Rb1 a1B Rf1 Rh7 Bf8+ Kh8 Rd1 Rf7 g7+ Kh7 Bc2 Na6 b8B Rf4 Ba7 Nab8 b7 Nf5+ Kd5 Bd2 Bf2 Nec6 Rf1 Na7 Rbd1 Be3 Ba4 Bb6 Bc2 Be5 B8c5 Bb2 Ba4 Bc1 Bc2 Nge7+ Kc4 Bd6 g8B+ Kg6 Bd5 Ng7 Kd4 Kh7 Bdb3 Ng8 Ba4 Nb5+
1b5b/1RP1krq1/Pr1R2pB/2BB1B2/2n1N3/r1b1P1Kb/4NR1n/3n3B w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 hxg4 bxa5 f5 d4 c5 Qd3 f4 Qg3 fxg3 dxc5 Qg5 Bb2 Qf6 Bc1 Qd8 a4 b5 h4 d5 c4 g6 e6 b4 h5 g2 Kf2 d4 c6 d3 a6 d2 e7 d1N+ Kg3 b3 c7 b2 a7 Bg7 c5 Bb7 c8B Rh7 a5 Bc3 c6 Bf6 h6 Bc3 c7 Nd7 Nd2 b1R Rh2 Rf7 h7 Rb6 h8B Nh6 Ne4 Ne5 Rb1 Qd4 Bf5 Nc4 Bg7 Bd5 Ba3 Be6 Bc5 Kd7 e8R Qf6 Nf3 g1B Bg2 Bgd4 Ng1 Qe7 Bf8 Bh8 Bh1 Qf6 Rb8 Qg7 Rb7 Ke8 Rf2 Bd7 Kh4 g3 Rc1 g2 Kg3 Ng4 a6 Rd8 a8B Nh2 Rc2 Bc8 Rd2 Rd3+ Nf3 Re3 Rd3 g1B Rd6 Qg8 Bh6 Qg7 Rb8 Ke7 Bd5 Ba1 Rb7 Ra3 Rf1 Bgd4 e3 Bac3 Ng1 Bd7 Rf2 Be6 Bg4 Bc8 Ne2 Bf5 Bh5 Bh3 Bg4 Rb2 Bb4 Ba7 Bf5 Bb8 Bc5 Rb6
b2B2Nn/2P2NB1/P1b1qRb1/2Nb1P2/3b2Nk/K1N3r1/p1Qbr2N/n7 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 hxg5 c5 exf5 a4 d4 Bh6 dxc5 Bf8 Bc4 b5 Bb3 axb3 a4 b2 a5 Bh6 Ra2 Bf8 Ra4 bxa4 Kd2 Kf7 Kc3 h5 g4 e5 f4 d5 g6+ Kf6 b5 a3 Kb4 e4 c4 e3 a6 e2 g7 e1B+ Nc3 b1B b6 d4 b7 h4 Nf3 h3 Qc2 d3 Rf1 a2 Ka3 d2 Nh2 Nc6 b8N Nb4 c6 d1B c7 Ne7 c5 Be6 c8N Qd6 c6 Bd5 c7 Qe6 Nd6 Ng6 Nf7 Bc5 Rf3 Bd4 g8N+ Kg7 g5 Bd2 Nf6 Rg8 Bb2 Nh8 Nbd7 Rae8 g6 Re7 Rf1 B1f3 Nc5 Ba8 Nfg4 Bfc6 Ne3 Kf6 g7 Nd3 Rf3 Nc1 Rf2 Nb3 Rf1 Na1 Rf2 Rd8 g8N+ Kg7 Neg4 Bd5 Nf1 h2 Bc1 h1B Nfh2 Bhe4 f6+ Kg6 Rf1 Kh5 Rf3 B2e3 Bd2 Ree8 Be1 Rd7 Bh4 Bd2 Ng5 Rh7 f7 Bdc6 f8B Qg6 Qa4 Bed5 Nf7 Re2 Bd8 Qe6 Bg7 Rh6 Rf2 Rf6 Rf3 Bg6 Qc2 Kh4 Re3 Qe7 Re6 Rf5 Rf6 Qe6 Nd7 Rfe5 f5 R5e3 Nc5 Rg3
2n1kb1q/1R1NBb2/2q1N2K/B5rp/nP1N3q/N1n1R2P/3N2nP/n6R w - - 0 1 illegal: No possible last move
RN1KB3/2Bnb1rP/rB6/3b2BN/2p1r2P/kr2b1q1/3P4/1Rq1NBb1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 e5 a4 exf4 axb5 h6 h4 Nd7 g4 Ndf6 Qc2 Bc5 Qf5 Nh5 gxh5 Bf8 Qg5 hxg5 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 h6 f5 b6 c5 h7 g4 d6 g5 b7 a4 b8B c4 d7 a3 Ke6 a2 e5 g3 b3 g4 Bb2 g2 Rh3 g3 Bd4 f3 Kf7 f2 e6 f4 e7 f3 e8B Be7 Na3 Bb7 Be2 f1Q Rd1 a1B Bb6 f2 Rb1 Qc1 Bf1 Ra6 Ne2 g1B Nf4 g2 Nh5 Qc7 d8B Qg3 Bb8c7 Nf6 Rh1 Nd7 Nc2+ Kb5 b4 Ka4 b5 Bd4 Ne1 Ka3 Rh3 Be3 Rh1 Rg8 Ke6 Rg4 Kf7 Bf8 Bg5 Re4 Rh3 Qh2 Rf3 Qg3 Rf6 Bd5+ Re6 Bg7 Ke7 Bf8+ Kd8 Bd6 Rf6 Bb4 Rf8 Bd6 Be2 f1R Rg8 Rf7 Bf1 Rg7 Bf7 Bgf2 Kc8 g1R Bd4 Qf4 Rd8 Qh2 Be8 Rg3 Ba7 Bef4 b6 Nb8 b7 Be7 Bab6 Rb3 Ng2 Bg1 Ne1 Nc6 Kd7 Qg3 Ra8 Bfe3 b8N Ne5+ Kc8 B7c5 Kd8 Nd7 Be7 Bb4 Bg5 Be7+
2RB1k2/2Br4/BN1nP1q1/qn2P2p/P4bp1/b2rB3/1NR3K1/rb1BR3 w - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 Ke7 b4 axb4 h4 Ke8 g4 f5 h5 g6 Qb3 Bg7 Qf3 Bh6 hxg6 Bg7 g5 Bf8 Qg4 fxg4 Kf2 c5 d4 b5 e4 h5 a4 b3 g7 b2 g6 b4 e6 c4 d6 c3 d7+ Ke7 d5 b3 Na3 b1R Ba6 b2 Rh2 c2 Kg2 Qa5 d8B+ Ke8 Nf3 Bb7 Ne1 Ne7 g8R Rh7 g7 Nbc6 Nd3 Na7 Be3 c1B Nc4 Nec8 Nb6 Nb5 Bc7 Ncd6 Rh8 Ra7 g8B Rd7 e5 Ra8 Bh7 Rad8 Be4 Bd2 Bf3 Rc1 Bd1 b1Q Nb2 Qg6 Bd4 Bf4 Be3 Rc3 Rc1 Ra3 Rc2 Ra1 Rh1 Ne4 d6 Bd5 Bc1 Ba2 Re1 Bb1 Be3 Rc8 Bd8 Rc3 Bc7 Rd3 Rg8 Rg7 d7+ Ke7 Bf3 Ned6 d8B+ Ke8 Rh8 Rd7 Bd1 Nb7 Rh7 Ba3 Re7+ Kf8 Re8+ Kg7 Bh4 N7d6 Rc8 Rd4 Be7 Rd3 Bed8 Kf8
2bnr3/2BP1P2/n1R1P3/1RRp1n2/nBNKB3/2Rp1rrq/2b2R2/4kN2 w - - 0 1 legal: proof: d4 e5 c4 exd4 a4 b5 axb5 g5 h4 Nc6 hxg5 Nb8 e4 f5 c5 d5 e5 Qf6 Qe2 Bd6 cxd6 Qd8 Qe4 fxe4 Kd2 Kf7 f4 Kg6 g4 c5 b4 h5 d7 a5 e6 c4 b6 a4 b7 a3 b5 h4 b6 c3+ Kc2 h3 Nf3 e3 Kd3 e2 Nfd2 e1R Rh2 a2 Nc4 c2 Nbd2 Nc6 b8R Nh6 b7 Re8 Ba3 Nf5 Rc1 a1N Bg2 Rg1 Bb4 Nb3 Be4 Ra3 Rf2 h2 Nf1 h1B Bd2 Kg7 g6 Kh6 g5+ Kh5 g7 Kg4 g6 Qh4 g8R Nd8 g7 Qh5 Bb4 Qh3+ Rf3 Rg3 Rf8 Kh4 Re3 Bf3 g8R Bd1 Rf7 Ng7 f5 Nc5+ Kd2 Rf3 f6 Na4 Rc3 Nf5 Rff8 Rg3 f7 Rf3 Rg2 Rg3 Rf2 Rb3 Rb1 c1N Rg8 Nd3 Rbc1 Ndc5 R1c2 Rg1 Rgg3 Na6 Kd3 Bh5 Re3 Bf3 Re1 Rg3 Rb1 Kg4 Ra8 Kh4 b8B Ra3 Bc7 Bd1+ Nce3 Rb3 Rb8 Rf3 Rb6 Ra3 Rcc1 Bb3 Rbc6 Bc2+ Kd2 Rb3 R3c5 Rg3 Nc4 Rbf3 Rb3 Bd3 Rcc3 Bc2 Ba3 d3 Rbb5 Qg2 Bb4 Kh3 Nfe3 Kh2 Nf1+ Kg1 Bba5 Qh2 Bb4 Qh3 Rh2 Qh7 Rb3 Nb6 Kc3 Qh3 Ra3 Rg2 Rb3 Kf2 Ra3 Ke1 Rb3 Rgg3 Rf2 Nd6 Ra3 Na4+ Kd4+ Kd1 Rc3 Ke1 Bb6 Bb7 B6a5 Bc8 Bc7 Nf5+
qN5R/1N2K2b/1br2R1P/BqP5/r2pqnp1/2r4B/N2k2P1/N4RNr w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 h5 Qxh5 b5 axb5 d3 Qf5 Qb6 Qh7 Qd8 Bg5 f5 Qh6 d5 Qe6 d4 Bh6 Nc6 Bc1 Nb4 Qe5 Nd5 exd5 Nf6 Qf4 Ng8 Qe4 fxe4 Kd2 Kf7 b4 Kg6 c4 Kf5 f4 g5 h4 e5 c5 a5 d6 a4 b6 a3 h5 a2 b5 Ra5 d7 Ra4 b7 Qb6 b8N Nf6 d8N Be7 Nbc6 Nd5 Be2 Rh6 Nb4 Rc6 Nb7 Bd8 Na3 Qa5 h6 Bb6 Nc2 Qa6 Rb1 a1Q Na2 Qa8 Rb3 Qb1 Na1 Be6 Bb2 Bg8 Bc3 Bh7 Ba5 Qf1 Bh5 Qb1 Be8 Kg4 f5 Kf4 f6 Qb2+ Ke1 Ke3 Bd7 Nf4 Bh3 g4 Rc3 Qb4 f7 Qb1+ Rc1 d2+ Kf1 Kd3 Kf2 d1R Kg3 e3 Kh4 e2 Kg5 e1R f8R e4 Rh8 e3 Rc2 Qb3 Rf2 e2 Rf1 Rc1 Rf2 Ng6 Rf6 Rc3 Kf5 Kd2 Kg5 Ba7 b6 Qb5 Kf5 Nf4+ Ke5 Rc7 Kd6 Rc6+ Ke7 Rf1 Nd6 Re1 b7 Bb6 b8N Rf1 Nb7 e1Q+ Ne2 Qeb1 Rg1 Rc1 Rf1 Qf5 Rf3 Rh1 Ng1 Qg6 Rf1 Qe4+
k1KR4/PN1PR1B1/3p1qb1/1prrPRR1/4B3/2p2RbN/b5n1/n3N1r1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 Kd7 Kg3 Kc6 Kf4 f5 a4 b5 d4 Kb7 e4 c3 h4 g6 e6 g5+ Ke5 f4 e7 g4 e8R f3 h6 f2 h5 g3 d5 g2 h7 Nf6 h6 Ng8 a6+ Ka7 a5 Bg4 d6 Bh3 Re7 Nf6 Na3 Bc8 Bd3 f1B Nc2 Bb7 Ke6 Ng8 e5 Qe8 Be4 Bd3 Ne1 Bb1 Rh5 Qc6 Nh3 g1R Rf5 Nd7 Bg5 Bc8 Bf6 Ba2+ Qd5 Rb8 Bg7 Ka8 a7 Ngf6 Rb1 Rg8 h8R Ng4 h7 Rb6 Rb2 Ra6 Rbf2 Ne3 R2f3 Ng2 Rg5 Kb7 a8R Nc5+ Kf6 Bd7 Rd8 Nb3 Qd3 Be8 Ke6 Rb6 a6+ Ka7 Qd2 Na1+ Qd5 Bg6 Rff5 Qc4 Kd7 Rc6 Kc8 Ka8 a7 Qf1 Rf3 Qf2 Rgf5 Qh4 d7 Qf6 Qd6 Rf1 Rf7 Be7 Rg5 Rf2 Re8 Bd8 Ree7 Rd2 Rff5 Rd5 Rf3 Qe6 R7f6 Rcc5 R6f5 Re8 Rhf8 Qf6 Rg8 Rf8 h8N Rf7 Rge8 Rf8 Nf7 Rh8 Ng1 Rh1 Nh3 Rg1 Re6 Be7 Nd8 Qf8 Nb7 Qf7 Rgg3 Bh4 R6e7 Qf6 Rgg5 Bg3 Rd8 cxd6+
2RBn3/p1PrPp2/RRn3r1/r6r/2p4N/P1R2Rq1/rB5k/1NKb3B w - - 0 1 legal: proof: c4 c5 f4 e5 fxe5 g5 b4 d5 bxc5 dxc4 g4 Qd3 h4 Qe4 Qb3 Qg6 Qf3 Bd7 Qf4 gxf4 g5 Qd3 g6 Be7 Kf2 Bc8 Ke1 Bg5 hxg5 Qd8 Kd1 Kd7 e4 Ke6 d4 b5 c6 h5 g7 f3 c7 b4 g6 b3 Bg2 f2 Nf3 b2 Nh4 Qd6 Rf1 Rh6 Bh1 Nf6 g8R Ne8 g7 Rg6 a3 Nc6 d5+ Ke7 e6 Kf6 e7 Ke5 Kd2 Kf4 e5 Kg3 e6 Kh2 Ra2 Qe5 d6 Qg3 d7 Bb7 Rh8 Rd8 g8R Bc8 Rh6 Bb7 Re1 f1R Re3 Rf5 Rf3 Ra5 Ra1 Ne5 Rc3 Bf3 Rf8 Bd1 Rfh8 Nd6 e8R Nc6 Ref8 Ne8 e7 Rgg5 Re6 Rg8 Rhh6 Rg6 Ng2 h4 Rg8 h3 Nh4 Rb8 Rf6 Rbb5 Rff3 Rh5 Rf8 Nf6 Rc8 Ne8 d8B Rhd5+ Rcd3 Rd7 Ra2 Rg4 Rhd6 Rg6 Rb3 Rc5 Rb6 Ra5 Nc3 b1R Rc2 Rbb5 Nb1 Rb2 Ra6 Ra2 Bb2 Kg1 Rcc3 h2 Bg2 h1R Kc1 Rh3 Bh1 Kh2 Rdf6 Nb8 Rfb6 Nc6 Ng2 Rh8 Nh4 Rhh5
6qr/2b1KB2/1b1BR1N1/1BBpP1N1/1N1P2k1/P2p1r2/R3bp1B/5rnb w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 d4 c5 g4 b5 gxh5 a4 b3 b4 Qd3 Na6 Qf5 Nc7 Qh7 axb3 Qe4 Nb5 cxb5 c4 Qd3 cxd3 Kf2 Ke7 Ke3 Ke6 Ke4 g5 h4 d6 h6 b2 h7 b3 b6 f6 b7 g4 b8B g3 h5 g2 h6 Ne7 Nc3 b1B Nd5 b2 Nf3 g1B Bh3+ Nf5 Nb4 Bf2 Re1 Bc2 Ng5+ Kd7 Kd5 b1R e4 Bd1 a3 Be2 Ra2 Bg3 e6+ Ke7 Be3 Nh4 Ba7 f5 Bc5 Kf6 e7 f4 e8B f3 Bf4 f2 Be6 Nf3 B6f7 Ng1 Bb5 Bh3 Kc6 d5 Bfd6 Qe8+ Kc7 Qe6 Kc6 Bg2 Kc7 Ra6 Kd8 Qg4 Ke8 Bh1 Kd8 Bd1 Re3 Be2 Ke8 Rf1 Kd8 Rg8 h8N Ra7 Ng6 Rh8 h7 Be5 Bb8 Bc7+ Ke8 Bb6 Bh2 Qg2 Bhd6 Ra6 Bh2 Bd6+ Kd7 Bdc7 Bhd6 Kg7 Ke7 Kh6 Bh2 Kh5 Bhd6 Rb8 h8B Kg4 Bhe5 Rh8 Bh2 Qg3 e5 Raa8 Rf3 Raf8 Rf6 Qg2 Re6 Qg3 Bfe8 Rf3 Bf7 Qh4 Ba6 Qh7 Bb5 Qg8
5R2/2R1Brp1/R1p1R1P1/Q2bq1pB/1nRq1pK1/1b2P1P1/1nN5/2R1nk2 w - - 0 1 legal: proof: d4 a5 b4 e5 g4 exd4 c4 b5 a4 h6 c5 Qg5 axb5 Qe5 g5 a4 Nd2 Qg3 c6 Qh3 b6 Qh4 b5 Ra7 g6 Rb7 cxb7 Qd8 Ndf3 Bd6 Ng5 Bg3 fxg3 hxg5 Kf2 Ke7 Kf3 Kf6 h4 Kf5 h5 d5 h6 d3 e3 a3 h7 d2 Bb2 a2 Qa4 d1N Qc4 c6 Bf6 d4 Be7 d3 Qc3 d2 Ne2 Qd4 Qa5 Nd7 b8R Nc5 b7 Nb2 b6 Be6 Rf8 d1B b8R Bdb3 b7 Nf6 Rbc8 Nd5 b8R Nb4 Rc7 f6 Rc1 a1Q Rh4 Bed5+ Re4 Ncd3 Rb6 Rg8 h8R Qe5 Re8 Rf8 Ra6 Rf7 Rhf8 Qd4 Bd8 Qe5 Re6 Qa4 Be7 Ne1+ Kf2 Qa1 Rec4 Qd4 Bg2 Kg4 Bf3+ Kh3 Bh5 Qe5 Nd4 f5 Nc2 f4 Rd4 Na4 Re4 Qad4 Ke2 Nb2 Kf2 Ng2 Kf3 Kh2 Kg4 Ne1 Qa1 Kg1 Qa5 Qc4 Rd4 Kf1 Re4 Qcc3 Rc4 Qcd4
BRB1BB2/1RN1p2r/2rb1pB1/p1qqRp1q/1P2P3/1P5K/5k2/rnN5 w - - 0 1 illegal: No possible last move, all moves rejected
1n4N1/1KNn2p1/4BRBp/2kP3p/n4pqP/2q3r1/1BnB1P2/2BR2bN w - - 0 2 illegal: Other
1b5k/pr4qP/3r2b1/n1BbRR1N/2n2rN1/1R3KNn/PR5P/r2B1Rr1 w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 gxh5 f5 Qe2 f4 Qe3 fxe3 Ke2 Kf7 f4 g5 c4 Kg7 d4 e5 c6 b5 c5 g4 c7 g3 d5 g2 c6 b4 f5 b3 d6 b2 d7 Rh6 f6+ Kh8 f7 Bd6 f8R Qg5 d8R Qg7 Rf3 Nd7 Rf5 Nb6 Na3 b1B Nc4 Be6 c8R Bb8 c7 Bd5 Nh3 Rd6 h6 Bc2 h7 g1N+ Ke1 e2 Kf2 e1R Ba3 Rd1 Ne3 Nc4 Ng4 e3+ Kg3 e4 Nf4 e2 Rb1 e1R Nh5 e3 Bc5 e2 Rb2 Rd4 Re8 Re4 Ree5 Nh3 Kf3 Ra1 Rb3 e1R Be2 Bb1 Bd1 Rg1 Rce8 Bd3 c8N Bc2 R8e6 Ne7 Rh6 Nc6 Ne7 N6a5 Rhe6 Rg2 Rf1 Rg1 Ref6 Bc7 Rfe6 Rb8 Rb2 Rb7 Rb3 Rd8 Reb6 Bb8 Rb2 Rd6 R6b3 Bc6 Rf4 Bd5 Nf5 Bb1 Nfg3 Rd4+ Ke2 Bg6 Rff5 Re4+ Kf3 Rf4+
2Nqq1bN/n1N4P/1NrR2p1/K3b1Q1/3P1b2/1qr3PN/Bn3Rq1/N2k3n w - - 0 1 illegal: No extended proof kernel
1Rn4B/Rr4b1/qB2NK1p/1B1Pn2b/n1NB4/1RP4B/3r2qP/1n2k1rb w - - 0 1 legal: proof: e4 b5 b4 c5 f4 d5 a4 g5 fxg5 Qd7 Qg4 Qd6 axb5 Qd8 b6 Nc6 b5 Nb8 Qf4 dxe4 Qd6 Bh3 Qd4 Bc8 Qb4 cxb4 Ke2 Kd7 Ke3 Kd6 Kd4 f5 g4 e5+ Ke3 Kc5 d3 a5 g6 a4 g5 f4+ Kf2 Kd4 g7 h6 b7 f3 Kg3 a3 Kh4 a2 b6 b3 Ba3 Ke3 d4 Kf2 d5 b2 c3 e3 Bc4 e2 Ba6 e1R Bb5 e4 Nd2 b1N Bc5+ e3 Ne2 Bg4 Bd4 Bh5 Nc4 Rg1 Nf4 Rh7 Ne6 Nc6 b8B Nge7 g8R Ke1 g6 e2 b7 f2 g7 f1B Bb6 Bg2 B8a7 Ne5 b8B Nc8+ Kg3 Qe8 Kf4 Qg6 Bd4 Be4 Bab6 Qg2 B8c7 Bef3 Kf5 Ra3 Bb8 Rb3 Rh8 Rb2 g8B Rb7 Kf6 Rd2 Bf7 Kd1 Bfe8 e1N Bed7 N1d3 B8c7 Nc5 Bb8 Nf7 Bbe5 Na4 Rg8 Ke2 Rh8 Na3 Rb1 a1Q Rb3 Nb1 Rg8 Rgd1 Rf1 Be4 Rf4 Rg1 Rfg4 Ke1 R4g7 Bd6 Rd8 Bf8 Re8 Ne7 Rb8 Nc8 Nd8 Qa2 Bh3 Qa3 Ne6 Bef3 Kf5 Qa1 Bf6 Ne5 Rh7 Qa3 Bh8 Qd6 Kf6 Qc6 Bbc5 Qa6 Bb6 Qf1 Bg2 Rg7 Bh3 Bh1+ Bf5 Qg2 Bh3 Ra7 Re7 Rd7 Re8 Rh7 Re7 Rg7 Ra7 Rd7 Rba8 Rb7 Rb8 Bg7+
4RN2/1r1nN1bB/2K1b1P1/rnpR4/2r2N1r/P1P1nnq1/kN1qB2B/6N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 dxe5 g6 f5 Ra4 Qd4 Ra6 fxg6 Ra3 g5 Ra8 Qg4 hxg4 Kf2 Ke7 Ke3 Ke6 Kd4 c5+ Kc4 b5+ Kb3 Kd5 h4 f5 h5 f4 c3 g3 a3 f3 e6 g2 h6 f2 e7 Ra5 e8N Qc7 h7 Ne7 e3 Bg7 Be2 f1N Nd2 Nec6 Nc4 Na7 Rh5 Qg3 Nb2 d6 Bd2 Be6 Re1 Nd7 Bc1 Rf8 h8N Rf4 Bd2 Rh4 e4+ Kc6+ Bc4 d5 e5 d4 Nc7 d3 Bf4 d2 Nd5 Ne3 Be2 d1R Na4 Rd4 Nb2 Rc4 Ne7+ Kb6 Nd5+ Ka6 Ne7 Bf8 g7 Kb6 g8B Bg7 Bh7 Ka6 Nh3 g1N Nhg6 Nf3 Nf8 Kb6 g6 Ka6 Ng1 Kb6 Ka2 b3+ Kb1 b4 Ka1 Qg4 Bh2 Kb5 Rg5 Qg3 Rf5 Bg8 e6 Bf7 Rd5 Bg8 Na4 b2+ Ka2 b1R Nb2 Bf7 Nc6 Bg8 e7 Bf7 e8N Be6 Nd3 Ka4 Nf4 Nb5 Nd6 Ra1+ Kb2 b3 Ne7 Rc1 Ne4 Rd1 Nf2 Rdd4 Nd1 Rb4 Ka1 b2+ Ka2 Rdc4 Kb1 Nf5 Kc2 Ne3+ Kd3 Kb3 Rd6 Bd4 Ke4 Ka2 Rd5 b1Q+ Bd3 Bg4 Nb2 Qc1 Be2 Qd2 Re5 Ng2 Kd5 Be6+ Kc6 Ne3 Rd5 Bg7 Rd1 Nf6 Rd8 Nd7 Re8 Qde1 Rd5 Qd2 Rg5 Nc7 Rh5 Rb7 Rd5 Nb5
nr2N1Nb/2P5/1RB2N2/1qK1Nbpp/r1Q3bn/b3P2P/R3b3/N2knN2 w - - 0 1 illegal: No possible last move
r2rk3/3R2Rr/2p1rR2/8/q1RPBp2/2BP1nKN/b1b2P1B/Nnbr2R1 w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 g5 d3 gxh4 Kd2 e5 c3 d4 cxd4 e4 Kc2 e3 Qd2 exd2 Kd1 a5 g4 h5 e4 f5 Ke2 d1R Kf3 c6 b4 a4 e5 h3 b6 h2 b7 a3 e6 a2 b5 h4 e7 h3 g5 Re1 b6 Rd1 g6 Nd7 b8B Bh6 g7 Ngf6 b7 Ne5+ Kg3 Nd5 Bb2 Bc1 Na3 Qa5 Bg2 Nf3 Nc2 Be6 Bc3 Qa4 Be5 Rd8 b8R Rh6 Rb7 Bg8 Bd6 Re6 Rd7 Bf7 Rb1 a1R Rb4 Ra3 Rc4 Bh5 Be1 Nc3 Na1 Nb1 Bc3 Ra2 Ne2 Ra3 Rg1 h1B Nf4 h2 Nh3 Bg4 Bf1 Bg2 Be5 h1R g8R+ Kf7 Rg7+ Ke8 Ng5 Rh7 Nh3 Qc2 Bc7 Raa8 Bd6 Qa4 Be2 Ne1 Bf3 Bh5 Bd5 Bgf3 Be4 Bf7 Bb8 B3h5 Kh4 Bg8 Bh2 Nf3+ Kg3 Rf6 Rc5 Ba2 Rc4 Re6 Rd5 Bf7 Rcc5 Re5 Rd7 Bfb3 Rc4 Re6 Rg4 Kf7 e8R+ Re7 Reg8 Bc2 R8g7+ Ke8 R4g6 Re6 Rf6 f4+
2QN1N1b/1Bn1b2N/Nk2qN2/pr3bb1/1n1Pn2N/b2PR2p/P7/1r2BK2 w - - 0 1 legal: proof: h4 f5 e4 fxe4 b4 g5 hxg5 b5 c3 d5 Na3 d4 cxd4 Be6 Rb1 Bd7 Rb3 Be6 Rc3 Bc8 Rc4 bxc4 g4 Kd7 g6 Kc6 g7 e5 b5+ Kb6 g5 h5 g6 a5 Nf3 c5 Nh4 c3 Nf5 c2 Nh6 h4 Qg4 c4 Nb1 h3 Nf7 e3 Bg2 e2 Bb7 Qd7 Nd8 Nf6 g8N c3 g7 Ne4 Nf6 Rh5 g8N Qe6 Nh7 Be7 Ngf6 Na6 f4 Nc7 f5 Rb8 Bb2 c1B d3 c2 Bc3 Bca3 Nd2 c1B Nf3 Bg5 Nh4 Bd7 Rf1 Bc8 Rf3 Bd7 Ne8 Bgf6 Re3 Bh8 f6 Qf5 f7 Ka7 f8N Nd5 Ba6 Nd2 Ng7 e4 Rf3 Be6 Kf2 e1B+ Ke2 e3 Rf2 Ne4 Ne8 Bd2 Nef6 Rb7 Kf1 e2+ Kg1 e1N Rf3 Bf4 Re3 Nc2 Kf1 Qe5 Bb4 Rf5 Be1 Bg5+ Qf3 Qd6 Qf2 Re5 Qf5 Bc8 Qd7 Qb6 Qc6 Bf5 Qc3 Qe6 b6+ Ka8 Qc5 Rb8 Qc8 Nc7 b7+ Ka7 Bd2 Rb5 Bc3 Rb1+ Be1 Ra8 b8N Nb4 Nbd7 Rb8 Nc5 Rb5 Bb7 Kb6 Na6 Bb2 Nc5 Bc1 Na6 Ba3
8/1r2BqpR/1n1r1RP1/1Nb1NbK1/2q3B1/N1q1NP1q/2pnPbB1/1Nk5 w - - 0 1 illegal: No proof kernel
2b3r1/qk1PN2P/qpp2n1r/1Pbb4/K1b3B1/1B1R4/1Q2B1nB/1B1Rr1B1 w - - 0 1 illegal: No possible last move
1B2knQ1/1qB1p3/3r1nRp/4PP2/2PRnBb1/q4Nr1/bb4b1/3KBB1B w - - 0 1 illegal: No proof kernel
1rbR1B2/1R2b1Bn/R4p2/KP1p3b/R2qnb1n/1rk2NP1/R4P2/2q2N1B w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 d4 gxh4 d6 Kd7 d5 e6 Qd2 Ke8 d7+ Ke7 d6+ Kf6 Qd5 exd5 Nc3 Ke5 Nb1 Ke6 Kd2 Ke5 Kc3 h5 Kb4 Kd4 e4 a5+ Ka4 c5 b4 c4 b6 c3 b5 h3 e5 f6 b7 h2 e6 h4 e7 h3 e8R c2 Na3 Ne7 Nf3+ Kc3 Ng1 Nf5 Re5 Qb6 d8B Be7 d7 Qd4+ Nc4 Nh4 Ba3 c1B Re6 Bf4 Nf3 Rh5 Rg1 h1N Ra6 h2 Ra2 Ng3 Bd3 h1B Rga1 Ne4 g3 Rh8 Bc7 Ra7 d8R Nd7 b8R Nf8 Rb7 Nh7 Bcd6 Re8 Bdc5 Ra8 Bd6 Rb8 Bc1 Bg2 Bf1 Bgh3 Bg2 Bhg4 Bh1 Bh5 Bc5 Bc7 Bh6 Bf4 Ka3 a4 Bg7 Kd3 Kb4 a3 Ka5 Kc3 Re2 a2 Ne3 Bf5 Nf1 Bc8 Rd1 a1Q+ Ra2 Qc1 Rdd2 Bf8 Ra4 Re6 Ba3 Be7 Ra2 Rc6 Bd6 Rc4 Bc5 Rb4 Bd6 Rb3 Ba3 Bed6 Bc5 Bde5 Be7 Bd6 Bef8 Be7
3R1nB1/pRpb3R/2q3R1/1PK2b1n/1rRn4/b1PqPQ2/Rr2N3/n2kB3 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Nc3 h4 Ne4 Qg5 Ng3 hxg3 Qd5 Qh4 Qd1 Qd8 Kd2 Kf7 Kc3 Ke6 Kc4 Kf5 b4 Ke4 f4 d5+ Kb3 g5 h4 d4 Kc4 d3 c3 d2 e3 g2 e6 g3 h5 g4 b6 Nd7 h6 Rb8 b7 Ngf6 e7 Nh5 Ne2 Kf3 e8R g1N h7 g2 f5 g3 Qa4 d1B f6 Bc2 f7 Bf5 Rh2 Be7 Qa2 Nf8 Rh4 Bcd7 Bd2 Kf2 Qa6 Nf3 Qc6 g1N Ra2 g2 Kb5 Ne1 Rc4 Bd6 Re6 Ngf3 Rg6 g1Q Bh3 Rg8 h8R Nc2 Rh7 Qg2 Be1+ Kf1 Bg4 Na1 Bh3 Bf4 Kc5 Nd4 Bg4 Bg5 Bf3 Rg7 Bd5 Be7+ Rd6 Rg4 Be6 Ra8 b8R Qe4 Rb7 Rb8 Bf2 Qd3 Qf3 Qe8 Bd5 Rg2 Bh4+ Rf2 Bg3 Ke1 b5 Kd1 Be6 Rh2 Be1 Rd8 Kd5 Rh4 Rdc6 Ba3 Rcb6 Ng6 f8R Re4 Rfh8 Nf8 Bg8 Rg4 Rg6 Rg2 Rg4 Qg6 Rg5 Re8 Rg4 Re4 Rg5 Qb6 Rg4 Rf4 Rg6 Qc6+ Ke5 Bb2 Nc1+ Re2 Rb4 Nde6 Bf7 Ba3 Ra4 Neg7 Bc4 Nfe6 Rd8 Nf8 Bg8 Nge6 Rd4 Qb6 Kd5 Rg4 Qh3 Rb2 Ne2 Nc5 Qf3 Ncb3 Ke5 Qa6 Rb4 Rc4 Ra4 Nd4 Kd5 Rcb4 Kc5 R4b3+ Kd5 Qf6 Rc4 Rb4 Kc5 Qc6+
1q2Bb2/RK2N2p/2rk1p1P/4R1BR/P1b3P1/1br2B2/2r1N1p1/n1qnB2B w - - 0 1 illegal: No proof kernel
2nBb1q1/4NN2/Nb1P1pP1/1p4B1/1R2Nr2/qr1B1b1p/1RnK3P/2Nn2k1 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 f4 gxf4 axb5 Bg7 Nf3 Bh6 Ng1 Bf8 b4 c6 b6 Qd6 b7 Bh3 b5 Qc7 b6 Bc8 Qe2 Qd8 Qb5 cxb5 g4 Kd7 c4 Kd6 d4 e5 g5 h5 g6 a5 Nc3 e4 Nd1 f6 Ne3 f3 Rb1 f2+ Kd1 a4 Rb2 a3 Re2 a2 Nh3 a1Q Rd2 h4 Nc2 e3 Ke2 Ra4 Nb4 Bd7 Rb2 Nc6 b8N Nh6 b7 Qa3 N8a6 Na7 b8N Nc8 Ng5 Be8 Nd3 Nf5 Nc6 h3 Kd1 e2+ Kd2 e1N Nce5 Rh4 Rb4 Ne3 c5+ Ke7 c6 Kd6 c7 Rf4 Rg1 N1c2 Rg2 Nd1 Be2 f1B Nef7+ Kd7 d6 Kc6 d7 Kd5 Rf2 Bc5 Ne4 Bg2 Bf1 Bb6 Be2 Qe7 d8B Bf3 Rg2 Qf8 Rf2 Ke6 d5+ Kf5 d6 Kg4 Bf1 Qg8 Re2 Na7 c8N Ra5 Ne7 Nc8 Bb2 Ra4 Nc1 Ra5 Rf2 Ra4 Bd4 Ra5 Be3 Ra4 Rb1 Rb4 Bd3 Rb3 Rb2 Bh1 Re2 Kf3 Re1 Kg2 Rf1 Rf3 Bg5 Rf5 Rf4 Kg1 Ng3 Ba8 Rb4 Bf3 Ne4 Rf4
8/PRBp1R2/2bN1p2/nK1NRPqr/1B3p1n/b3q3/P2R1RBn/k2rr3 w - - 0 1 illegal: No possible last move
1BN3b1/1q1bn1k1/3N3r/pp3npR/3rRR1B/P5PP/nB6/K1qq1BB1 w - - 1 2 illegal: No possible last move, all moves rejected
1R1bBn2/k1B3rp/Np1B1nP1/q2B1R1K/1B1p2PP/5Q1B/1b4rq/1b3q2 w - - 0 1 legal: proof: d4 e5 f4 exd4 a4 b5 axb5 g5 fxg5 Nh6 b6 Ng8 b4 Nc6 b7 Qe7 b8B Na5 b5 Qd8 b6 Nc6 b7 Nb4 Nc3 Na6 Nd5 Ne7 Nb6 cxb6 Bd2 Ng8 Be3 Be7 Bc1 Bf8 Kf2 f5 Kf3 d5 c4 Kd7 g4 Kc6 e4 d3 h4 d4 g6 d2 e5 f4 e6 Nf6 e7 Nc7 c5 a5 Ne2 a4 Ba3 Qd6 Ng3 Bf5 Ne4 Rg8 Bh3 Ne6 Bc7 Rg7 b8B Kb7 e8B Be7 Rf1 Bd8 Bb4 a3 c6+ Ka6 Qb3 a2 Rae1 a1B Nc5+ Kb5 Qe3 Nf8 Na6 d1Q+ Re2 Qe5 Bcd6 Qb3 Bbc7 Qc2 Qf2 Qec5 Re5 Bd3 Rf5 Bb2 Re1 Qd2 Re7 Bb1 Rd7 Be7 Rd8 Ra7 Rb8 Bd8 Kg2 f3+ Kg3 Qe2 Kf4 Ra8 Qf1 f2 Kg5 Qd5 Qh1 f1Q Qf3 Qh2 Kh6 N6d7 Kh5 Ra7 Nc5 Ra2 Na6 Qc5 Be5 Qc3 Bcd6 Qa3 c7 Qa5 c8B Bf6 Bb7 Bd8 Bf7 Nf6+ Kg5 Ba3 Bbd5 Rg2 Bc7 Bb2 Bed6 Ba3 Kh6 Bb2 Be8+ N8d7 Nc5 Bc3 Nb3 Ka6 Nc5+ Ka7 Na6 Nf8 Kg5 Bb2 Kh6 Ng8+ Kh5 Nf6+
1K5B/n1r1P1B1/2bR4/2R3pp/2P1BnBQ/q1rnkp1B/1B2qNP1/2b3r1 w - - 0 1 illegal: No proof kernel
N2b4/rq4q1/p1BRP3/2QrBNN1/1NKppq2/1n3n1N/PkP2n2/3b1N2 w - - 0 1 legal: proof: e4 c5 d4 e5 h4 f5 b4 g5 bxc5 gxh4 Nd2 Qe7 Rb1 Qg5 Rb4 Na6 dxe5 Nb8 e6 Qf6 e5 Qd8 Re4 fxe4 Ke2 Ke7 f4 b5 g4 d5 c6 h5 g5 h3 f5 b4 g6 h2 c7 a6 g7 d4 Nh3 b3 Qe1 h4 Kd1 b2 Bb5 b1Q Bc6 Nd7 Nf1 Rh5 Qc3 Qb7 Bf4 Ra7 Kc1 Nh6 Bg3 Nf7 Qc5+ Nd6 Rg1 h1N Rg2 Nf2 g8N+ Ke8 e7 Kf7 e8N Qg5+ Bf4 Qg7 f6 Ke6 f7 Nc4 Ngf6 Nd2 Nd5 Nb3+ Kb2 Be7 Nb4 Bd8 Nd6 Rg5 Nf5 Rh5 Ng1 h3 Rg5 h2 Nh3 h1Q Rg6+ Bf6 Rh6 Qf3 Bh2 Qf4 f8N+ Kf7 Nh7 Bd8 Rd6 Rg5 Rd5 Ke6 Bg3 Nf8 Bh2 Ng6 Rd7 Nh4 Rd6+ Kf7 Ka3 Nf3 Ka4 Be6 c8N Bc4 Ka3 Be2 Nb6 Bd1 Na8 Rh5 Nh6+ Ke7 e6 Rd5 N7g5 Kf6 Ka4 Ke5 Nf5 Qg3 Qb6 Rb5 Nd5 Rc5 Kb4 Ra5 Kc4 Rb5 Nb4 Ra5 Ng1 Kf4 Nd2 Rd5 Ne7 Ke3 N1h3 Qh4 Be5 Qf4 Nf1+ Ke2 Nf5 Ke1 N1g3 Kd2 Nf1+ Kc1 Qc5 Kb2
1NR4Q/b2P1R1R/q1n1rn2/n1R2pPn/R4P1n/2p4B/R1p1bk2/K4Nr1 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 hxg5 d5 a4 Kd7 Be3 Ke8 axb5 dxc4 d5 Bd7 Bb6 Bc8 Bd4 exd4 Kd2 Kd7 Kc1 Kd6 e4 Ke5 b4 Kf4 Kb2 f5 g4 a5 f3 Ke3 f4 h5 b6 c5 g6 d3 g5 h4 d6 a4 d7 h3 b5 d2 g7 h2 b7 Nf6 g8R Qa5 b6 Nc6 b8R Kf2 b7 Ra6 Ra2 a3+ Ka1 c3 e5 c2 e6 c4 e7 c3 e8R Bc5 Qh5 d1N Ref8 Ne3 Ne2 Ba7 Ra8 Ng2 b8R Nh4 Nd2 Rb6 Qh7 Ba6 Nd4 Be2 Rf7 Qa6 Rgc8 Re8 Rc7 Re6 Bh3 Rb3 Nf1 Rb7 Rg1 h1N Rbc8 Ng3 Qh8 Ngh5 Rh1 Rb5 Rab8 Rbe5 Rb4 Re3 Ra4 Rg3 Ra5 Rg1 Ra4 Ne5 Rc5 Nc6 Rh2+ Ng2 Rb2 Ng7 Bg4 Ne5 Rh7 Ngh5 Nc6 Nh4 Nb8 Nc6 Bh3 Re4 Ka2 Re6 Kb3 a2 Ka3 a1N Ka2 Ng3 Qd8 Nb3 Qh8 Nba5 Ka1 Ngh5 Rba2 Re7 Rb5 Re8 Rc5 Re6
1Nb5/1KN1b1p1/1Q6/NP3B2/1Nb2rNn/1pkp1NPP/1R2r1n1/b3q1Rb w - - 0 1 illegal: No proof kernel
8/Nq3P1N/N1b2p1p/r6P/r1k3nP/3b1nBb/R1N1p1B1/1RrN1RbK w - - 0 1 illegal: No proof kernel
1R3K2/1Bnb2rk/4P1bB/p3Rp1B/Bb1bn3/q1QP1P2/p2N2rB/4n2B w - - 0 1 illegal: No proof kernel
B1b4k/qB4r1/1prN1B1p/1r2p1bN/n7/2N1PP2/2rP1K1R/1N1b1NRn w - - 0 1 legal: proof: h4 d5 c4 f5 cxd5 g5 hxg5 a5 b4 axb4 e3 f4 Qe2 f3 Kd1 fxe2+ Kc2 Bh6 Ba3 Bg7 Bc1 Bf8 Kd3 Kf7 a4 Kg7 g4 e1R d6 c5 f3 h6 d7 b3 a5 e6 g6 b2 g5 b6 a6 Qc7 d8N Nf6 a7 Ne4 Nb7 Nd7 Ne2 Rg8 Ng3 Be7 Rh2 Kh8 Nd6 Rg7 Bh3 Rd1 Ke2 c4 Nf1 Ng3+ Kf2 c3 Bg4 Rb8 a8B c2 Bf5 Qa7 Bfe4 Nc5 Bed5 Rf7 Bdb7 e5 g7+ Kh7 g8N Na4 g6+ Kh8 Nf6 Rg7 Nd5 Bg5 Ndc3 Re1 Na3 b1B Bb2 Ba2 Nab1 c1R Ba3 Bb3 Bc5 Bd1 Ba3 Re7 Bc5 Rc2 g7+ Kh7 g8N Kh8 Nf6 Rg7 Be4 Rbb7 Nh5 Rbc7 Beb7 Rc6 Nc4 Be2 Be7 Rec1 Bd8 Bd1 Bf6 Rb2 Nd6 Rcc2 Ra2 Rb5 Rb2 Rc7 Rb4 Rc6 Rg4 Nf5 Rgg2 Ng3 Rg1 Nh1+
3bRB2/q2b4/3r1Rp1/2Rb1q1b/k2p1p1K/N1P1rPPn/2N1B2R/1n2NR2 w - - 1 2 legal: proof: d4 b5 a4 c5 axb5 cxd4 h4 e5 Qd3 e4 h5 exd3 h6 g6 Rh2 Qf6 Rh1 Qg7 hxg7 Ke7 Nc3 Kd8 Nb1 Ke8 b4 a5 e4 d5 b6 Kd7 b5 f5 g3 h5 c3 f4 e5 d2+ Ke2 d1B+ Ke1 d3 b7 h4 b6 Kc6 e6 Kb5 e7 d4 e8N a4 Nh3 a3 Ra2 Nh6 g8R Ra6 Rb2+ Ka4 Nf6 a2 Nd5 a1Q Nb4 Bh5 Ng5 h3 Na3 h2 Be2 d2+ Kf1 d1Q+ Kg2 Be7 Rf8 Bd8 Rf6 Nc6 b8R Bd7 b7 Ne5 Rf1 Qc2 Rc8 Re8 b8R Nhf7 Rc5 Rd6 Nf3 Ng5 Ne1 Qf5 Nbc2 h1B+ Kh2 Bb7 f3 Nc4 Rbc8 Re3 Rb8 Bc7 Re8 Nd2 Ra2 Bd5 Kg2 Ne6 Kh2 Nb1 Bb2 Qg5 Kh3 Qf5+ Kh4 Ng5 Nc4+ Kb3 Ba3 Nh3 Bb4 Bb6 N4a3 Ka4 Rcc8 Rc6 Bf8 Rd6 Rc5 Bd8 Bd1 Qe6 Nb4+ Bb3 Rh2 Qf5 Nb5 Ka5 Nbc2 Bd5 Be2 Qa3 Rc8 Qc5 Nba3 Qa7 Rc5+ Ka4
k1qbN2Q/p2N3p/1qrN3P/2qp4/1r1PNB2/PN2N3/R1n1rRK1/1nn5 w - - 1 3 legal: proof: b4 c5 bxc5 b5 f4 e5 e3 exf4 a3 b4 Bd3 Ne7 Bc4 Ng8 g4 f3 Ba2 b3 Kf1 bxa2 Kf2 Qe7 Ke1 Qd8 Kf1 f5 Nc3 f4 Nb1 Ba6+ Kf2 Bd3 Ke1 Bf5 gxf5 Bd6 Kf2 Be7 Ke1 Bf8 Kf2 d5 c4 Kd7 h4 Kc7 f6 Kb7 e4 g5 f7 g4 h5 Be7 f8N Qc7 e5 Na6 e6 Nf6 h6 Qb6 Nd7 Rac8 Nh3 Rhe8 Rh2 Rc6 Ng5 Ka8 Ne4 Bd8 e7 Nb4 d4 Nc2 Qg1 g3+ Kf1 f2 Nbd2 Nh5 Kg2 f1N Nb3 Nd2 Qe1 Nb1 Qa5 Rg8 e8N Rg7 Qe1 Re7 Qe2 Ree6 Qg4 Re7 Qg8 Re5 Qh8 f3+ Kg1 f2+ Kg2 f1R Bf4 Rd6 c6 Qc5 c7 Rc6 Kh3 g2 c8N g1Q Ncd6 Qg6 Nf5 Ng3 Rf2 Ne2 Ne3 Nc1 Kh2 Qf5 Kg2 Qb6 c5 Re7 Ndf6 Qc8 Nd7 Re1 Qe5 Re2 Qh8 Rc7 c6 Rb7 c7 Re6 Qg7 Rc6 Qh8 Qc5 N8f6 Rb4 Ne8 Qa6 c8N Qab6 Ncd6 Nc3 Rb1 a1Q Rb2 Nb1 Ra2 Qac3 Kg1 Q3c4 Kf1 Qca6 Kg2 Qc8
3bB3/B7/3nKn1k/PN2p3/2qQP3/BR1p1r1p/Rn1PBqbq/qB1B4 w - - 0 1 legal: proof: g4 f5 b4 fxg4 Nc3 c5 Nd5 a5 bxa5 Qc7 Ne3 Qb6 Nd5 Qd8 h4 g5 Nf4 b5 Rh3 g3 Nd5 g4 Nb4 cxb4 Rh1 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Ba6 Rh5 Bb7 Rh1 Bc8 c4 Kf7 e4 Kg6 Ke2 e5 Kd3 d5 a4 h5 f4 b3 c5 b2 a6 b1N f5+ Kh7 c6 b4 c7 g2 a7 h4 a8B b3 f6 g3 f7 b2 g6+ Kh6 g7 d4 Kc4 d3 a5 Nf6 g8B Bh3 c8B Be7 Ra2 Na6 Qa4 Nc7 Bc6 Nb5 Nf3 g1Q Nd4 g2 Be2 Qf2 Be8 g1Q Bcg4 Qgh2 Rg1 Bg2 f8B+ Kg5 Bd1 h3 Bge2 N1c3 Re1 b1Q Ba3 Qb8 Qb4 Bd8 Bc5 Rh4 Ba7 Qa1 Bd5 Na4 Rg1 Nbc3 Nb5 Qc7+ Qc5 Qf7 Qd4 Nb2+ Kc5 Kg6 Kd6 Kh6 Rh1 Qc7+ Ke6 Rf4 B5b3 Qc5 Bbc2 Rf3 Bb1 Qb4 Nc7 Nb5 Rg1 Nd6 Nb5 Bf1 Rg7 Bg2 Rc7 Qhg3 Rc3 Qh2 Rb3 Qc4+
R1r5/1pN3k1/1K1NP2n/3r1brp/RP2rqrR/p1nNrB2/1B4RP/3R4 w - - 0 1 illegal: No proof kernel
1Nb2R1b/1N2Pqrp/1Kp3kN/1P1n1N2/p2q1B1Q/1N3p2/rR1b1P2/3N3n w - - 0 1 illegal: No possible last move
Nq1Q1Nbq/B1p1pR1p/1r4P1/B3B2P/B1b5/K1Pnq3/1B1kpn1B/b7 w - - 0 1 illegal: No proof kernel
1Q1RKRr1/p1rp4/P3N1bR/1b1P3p/1q4Rp/PR2bRNb/Br1n2k1/8 w - - 0 1 legal: proof: h4 c5 e4 f5 exf5 g5 b3 gxh4 Ba3 Na6 Bb4 cxb4 a3 Nc5 Nc3 Qa5 Nb1 Na4 bxa4 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 Kf4 d4 b5 g4 b3 c4 b4 a5 h6 f6 b2 f7 b3 d5 Qe8 g5 Ba6 g6 Nf6 g7 Rb8 g8R Rd8 Ne2+ Kf3 Rg4 Rh7 Nbc3 b1B Nb5 b2 Nc7 Rh8 Qb3+ Bd3 Rb1 Rc8 Ng3 Bb5 a6 Bg7 f8R Rg8 Qb4 Rb8 Ne6 Bg6 Bd3 Kg2 f4 Rb7 f5 Qb8 Bc2 Rb6 Bb3 Rb7 Ba2 Rc7+ Kd4 Bh8 Ke5 Ne4+ f6 Nd2 c5 Bg7 c6 h5 Rh3 Qb6 Rd8 Bh6 f7 Be3 f8R Qa5 Rbf1 b1B R1f3 Bbf5 Qd6 Qb4 Rf6 Rb7 c7 Rb6 c8R Rc6 Qb8 Rc7 Nc5 e6 Kd6 e5 Ke7 e4 Rh1 Be6 Rb1 Bef5 Rb3 Be6 Rgf4 Bh3 Rc6 Bf2 Rd6 e3 Rg4 e2 Ne6 e1R Rdf8 Be3 Rcd8 Bgd3 Ke8 Rb1 Ng5 Bf5 Rh6 Rb2 Ne6 Bg6+
N1r1kq2/Rn2r1BN/1P2n3/2n3R1/PBn1PB2/Nq1R3K/2bp3B/5q2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 a4 d4 Ke7 dxc5 Ke8 Qd5 Nf6 Qd3 Ng8 Qb3 axb3 c4 b5 c6 Nf6 c5 Rh6 Bh3 Rh7 Be6 Rh8 Bc4 Ng8 Nd2 bxc4 b5 Qa5 b6 Be7 b7 Qd8 Nb1 Bd6 Na3 Bc7 Nb1 Bb6 cxb6 Qe7 Kf1 Qg5 Ke1 Qd8 Kf2 f5 Kg2 d5 h4 g5 a4 b2 e6 f4 e7 g4 e3 g3 c7 d4 h6 d3 h5 d2 h7 c3 h6 c2 Ra3 Na6 b8B Bf5 c8R Nf6 Nf3 Ra7 Rd3 Nc5 Rc7 Ng4 Rh5 Nb7 Na3 b1Q Rg5 Qb3 Kh3 g2 Rcd7 Rf8 h8B Rg8 Bcb2 c1N h7 Rf8 Bhc3 g1N+ Kh4 Bg6 h8B Nh3 Bhg7 Ne5 Bb4 Nc4 B2e5 Bf5 R3d4 Bb1 e4 Nd3 Bed6 Ndc5 Rd3 Bc2 Bbc7 Kf7 e8N+ Qe7 Bb8 Rg8 Nc7 Rc8 Na8 Ke8 Rc7 Qf8 Bde5 Ng1 Kg4 Ne2 Kh3 Nd4 Rd7 Nde6 Rf7 Nbd6 Rb7 Ra5 Ra7 Ndb7 Ne1 f3 Bh2 f2 Nf3 Rb5 Bbf4 f1Q+ Rg2 Na6 Ng5 Re5 Nh7 Nac5 Kh4 Nc7 Rg5 Re7 Kg3 N7e6 Kh4 Qe1+ Kh3 Qf1+
R2bN3/RRb1B3/2k5/1q1bq2K/PPr2Np1/nP4pB/1N2BR1r/q7 w - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 h5 g4 hxg4 Qb3 a4 Qd1 a3 b3 b5 Qc2 b4 Qc3 Nc6 Qb2 Na7 Nh3 Nb5 Ng1 Nc3 dxc3 axb2 cxb4 Ra5 Nh3 Ra7 Ng1 Ra8 Kf2 Kd7 Kg3 c5 h4 g5 e4 f5 e6+ Kd6 h5 c4 e5+ Kc7 d6+ Kb7 h6 c3 h7 c2 d7 Qf6 d8R Be7 Rf8 Nh6 Nc3 b1Q Be2 Kc6 Nh3 Bb7 Nf4 Rc8 Na4 Bd8 e7 Nf7 e8N Nd6 e6 Nc4 e7 Na3 Nb2 Qe5 Be3 c1B Bc5 Rc7 Rd1 Be3 Rd7 Qd1 Bd6 Bb6 Rf6 Rc8 Rf7 Ba8 Rb7 Bbc7 Bc5 Qd7 Rf1 Qd1 Rf2 Qa1 Rg7 Nb1 a4 Na3 Kg2 g3 Kh3 g4+ Kh4 Rf8 h8R Rf6 Bf1 Rh6+ Kg5 Rh2 Bh3 Kd7 Ra7 Bd5 Kh5 Kc6 Bd6 Qe4 Nf6 Qe5 e8B+ Kb6 Bg6 Kc6 Ne8 Bb8 Rhh7 Be4 Rad7 Qd4 Rc2+ Kb6 Nfd3 f4 Rg2 f3 Nf4 Ba8 Bd3 f2 Rdf7 f1Q Rf2 Rc3 Rg5 Bc6 Ra5 Bd5 Ra8 Kc6 Rfa7 Qf6 Rhb7 Bbc7 Be7 Qe5+ Kh6 Qfe2 Ba6 Qc4 Kg6 Qc5 Be2 Qb5 Kh6 Rc4 Kg6 Qg7+ Kh5 Qe5+
NB2BNq1/1br1q1n1/1K1P3P/pNpbp1p1/Pk6/2R5/r2B1B2/R5R1 w - - 0 1 legal: proof: c4 c5 b4 d6 bxc5 Nh6 c6 Ng8 c5 Bd7 Nf3 Bf5 Ng1 Bc8 a4 dxc5 e4 b5 Qb3 f5 exf5 b4 h4 g6 h5 Bh6 Qa3 Bg7 h6 bxa3 hxg7 h5 g4 h4 Bg2 Nd7 Bh3 Ndf6 Bf1 Nh5 gxh5 Qc7 Bb5 Qd6 Bf1 Qd8 Ke2 e5 d4 Ke7 Kd3 Kd6 Kc4 a5 Kb5 h3 f4 h2 c7 a2 h6 Bd7+ Kb6 Rc8 f6 Rh7 f7 Be8 f8B+ Ne7 g8R Kd5 f5 Rh8 f6 Bd7 f7 Bf5 Bb5 Rh7 Ne2 Bc2 Rg1 h1B Na3 Bd1 Be8 Bb3 Nb5 Kc4 d5 Bg2 Ned4 Bc2 Ne6 Bce4 Bd2 Nf5 Be7 Rg7 Bh4 Qe7 f8B g5 Bf2 Rd8 c8N Rf7 Rg6 Ng7 Rf6 Rd7 Rf4 Rc7 Rf3 Bh1 Rc3+ Kb4 Ka6 Rf4 Nb6 Rg4 Na8 Rg2 Kb6 Bf3 Rac1 a1Q Rcd1 Qa2 Ra1 Qd8 Bd6 Qe7 Nf8 Qc4 Bfe1 Re2 Bf2 Bfg2 Bf4 Ra2 B4e3 Qd3 Bd2 Qh7 Bf4 Qg8 Bd2 Ra7 Bb8 Rc7 d6 Bd5 Rgf1 Bb7 Rg1 Bhd5
1bR1B3/1n1P3r/R1nNnK2/1R1q1B1p/3P2NR/P4qr1/r4qq1/3kB2N w - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 Nh6 f5 Nd7 Qf3 Ng8 Qg3 Nb8 Qf4 gxf4 h3 Be6 g5 Bf7 Kf2 Bh5 Ke1 Bg4 hxg4 Ra3 Nf3 Ra6 Ng1 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 c5+ Ke4 h5 d4 e5 f7 b5 f6 f3 Kf5 b3 g6 c4 g5 c3 g7 f2 g6 b4 Ba3 b2 Nf3 c2 Be2 c1N Nc3 f1Q Rh4 b1Q+ Bd3 e4 Be2 e3+ Bd3 e2 Nd1 e1Q Be4 Qg2 Nd2 Qb3 Nf2 Ne2 Nh1 Nc6 Rb1 Be7 f8R Na5 f7 Rh7 Ra1 Nb7 Nc4+ Kd7 d6 Nf4 Re8 Ne6 f8R Qbf3+ Ke5 b3 Rf5 b2 Bb4 Qef1 Be1 b1R Rg5 Rb2 Bf5 Kc6 d7 Kb5 Nd6+ Ka4 Rf8 Q1f2 Re8 Qb8 Rd8 Bf8 Rc8 Ne7 g8B Rb3 g7 Nc6+ Kf6 Qd5 Bf7 Rg3 g8N Qff3 Nc4 Qbf4 Be8 Bd6 Nh6 Bb8 Nd6 Q4e3 Ng4 Qef2 Rb1 Ka3 Rb6 Ra7 Ra6+ Kb2 Rg6 Kc1 a3 Kd1 Rb6 Ra4 Ra6 Rc4 Rg7 Rc2 Re7 Ng7 Re3 Ra2 Rb3 Ne6 Rb2 Ncd8 Rb5 Nc6
q2n4/PNnN1nB1/R1P2pq1/8/1p1N3K/r1qRb1PR/rk5B/1b1R3B w - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 f4 axb4 fxe5 g5 Qd2 Qb6 Qf4 Qd8 Nh3 gxf4 Ng5 Qb6 Nxh7 Qd8 Kf2 Ke7 h4 Ke6 e4 b5 a4 d5 c4 f6 h5 f3 Kg3 d4 c6 f2 c5 d3 h6 d2 a5 d1Q a6 b3 c7 b4 a7 b2 c6 Qe8 Rh3 Qdd7 Kh4 Qd6 Nd2 b1Q Ra6 Nd7 Nb3 Qdd3 Bf4 Qc3 Bh2 Nc5 g3 Nb7 Bg2 f1N Bh1 Bd7 c8R Bc5 Rb8 Ne3 Rd8 Bc8 Rd4 Nd5 Rd1 Be3 Rd3 Nd8 Nd4+ Kf7 Rd1 Bf5 Nf8 Nc7 h7 Nh6 e6+ Ke7 e5 Nhf7 Rd3 Rb8 Nd7 Rb5 Rd1 Ra5 Rd3 Ra2 Rd1 Rg8 h8B Rg5 Bg7 Bh7 Rd3 Qh8 Rd1 Qg6 Rd3 Rf5 Rd1 Ra3 Rd3 Rf2 Rd1 Ke8 e7 Rfa2 Rd3 Nh6 Rd1 Kf7 e8N Ke7 e6 Nhf7 Nd6 Qe8 Nb7 Qg8 Nbc5 Kd6 e7 Qh8 Ne4+ Kd5 e8R Kc4 Nec5 Qf8 Nb7 Qg8 Ne6 Kb3 Nd4+ Kb2 Re5 Qh6+ Rh5 Bb1 Rd3 Qg6 Rc5 Qe1 Rc1 Qc3 Rcd1 Nde6 Bh8 Qa8 Bg7 Ned8
rN1B1K2/1pB5/PnB1k1q1/2Bp1R1q/R2rrR2/PN3Nr1/4Prb1/4b3 w - - 0 1 legal: proof: f4 c5 b4 a5 bxa5 e5 fxe5 Be7 d4 cxd4 g4 Bf8 Na3 h5 Rb1 f5 Ra1 f4 Nb1 Nc6 Qd3 Nce7 Qf3 Nf5 gxf5 Ba3 Qg2 Bf8 Qg4 hxg4 Kf2 Kf7 h4 g5 c4 f3 Kg3 f2 e6+ Kf6 h5 d6 e7 d3 e8R d2 a6 d1R h6 Rb8 h7 Kf7 f6 Qb6 c5 Ra8 c6 Bf5 c7 Rd2 c8N Ne7 Rh5 Ng8 Ne7 Bd3 Nc6 Qa5 Re4 Ne7 Bg2 f1R Nb8 Nd5 a3 Be7 Ra4 Ke6 f7 Nb6 Bc6 Be4 f8B Rd4 Bf4 Qf5 Be5 d5 Nd2 Bb4 Bc5 Rf8 h8B Rf4 Re1 Qf7 Rh4 Qh5 Nb3 R8f7 Rf1 Be1+ Rf2 Bf3 Bhf6 Rfe4 Bd8 Bh1 Kh2 g3+ Kh3 g2 Bec7 g4+ Kg3 Qh8 Rh5 Rf6 Kh4 g3+ Kg5 Qh7 Nh3 g1R Rh4 Rg2 Ng1 Qh8 Rf3 Rf2 Rh5 g2 Rh4 Rf8 Kg6 Qh5+ Kg7 Rf5 Kg8 Rg5+ Kf8 Rg6 Rf7 Rgg4 Nf3 g1Q Rf5 Qg3 B7d6 Bg2 B6c7 Rg5 Rhf4 Qgg4 B5d6 Qg6 Bb4 Q4h5 Bc5 Rg3
1NK5/R1P3r1/q4nB1/1P2q1Rr/pqN4B/Bp1n1bPB/k4r1N/q6R w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 gxh4 axb5 f5 exf5 Na6 b6 Nb8 c4 Bb7 d4 Bc6 b5 Na6 Qd2 Nb8 Qb4 cxb4 c5 Bb7 c6 Bc8 Nc3 Bh6 Nb1 Bf4 Bc4 Bd6 Bf1 Bc5 dxc5 Bb7 Ne2 Ba6 Ng1 Bc8 Kd2 Kf7 Kd3 a5 Ke4 e5 Kd5 h5 Kd6 h3 f4 h2 b7 e4 g3 e3 c7 a4 f6 h4 c6 e2 f5 e1Q Bg5 h3 Nd2 Na6 b8R Bb7 c8B Qde7+ Kd5 Q1e5+ Kc4 Rh7 c7 Nc5 Be2 Bf3 Bd3 Rg7 Re1 b3 Bh4 d5+ Kb4 d4 Rb7 Qf8 Bc2 d3 Nc4 d2 Ra7 d1Q Ka5 Qda1 Kb6 Nd3 Re4 Qfd6+ Kb7 Qb4 Be6+ Kf8 f7 Nf6 Bb1 Ke7 f8N Rc8 Nd7 Rf8 Nb8 Rff7 Nd2 Kd6 Kc8 Kc5 Rg4 Qec3 Bd7 Qe5 Rg5 Kd4 Bc2 Kc3 Be6 Kb2 Nc4+ Ka2 Bd7 Ne8 f6 Rf8 f7 Nf6+ Be8 Rh8 f8B Rh5 Rg6 Rf5 Bd7 Rf4 Rg5 Rf5 Ne2 Rf4 Nd4 Rf5 Re1 h1Q Be6 Qg2 Rh1 h2 Bd7 Rf4 Bh3 Qgd2 Be7 Qa5 Ba3 Qdb4 Nf5 Qb6 Nfe3 Qc6 Nf1 Rf5 Rg1 h1R Nh2 Qb6 Re1 Rf1 Rd1 Rf2 Rh1 Q6a5 Rg6 Rh5 Rg5 Nf4 Be4 Nd3 Bg6 Qa6+
bBK4R/2P5/BpprB3/1rqNP1b1/1N1k4/3bn1bN/2rRP1qR/7R w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 b5 g4 bxc4 gxh5 Qe7 b4 Na6 b5 Qd8 b6 Nb8 b7 Be7 Qc2 Bd6 Qd1 Bf8 d4 c6 d5 Na6 Qb3 Nc7 Qb4 Na6 Qb6 axb6 Ba3 Qg5 Bd6 Qe7 Bb8 Qd8 d6 Nc7 dxc7 Bb4+ Nc3 Be7 Nb1 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 f5 a4 g5 h4 d5 a5 g4 a6 f4 h6 f3 h7 g3 h5 f2 h6 g2 Ba7 c3 b8R c2 Nf3 g1B Nc3 c1R Rh2 Bb7 Na2 Qd6 Rd8 Ne7 Nb4 Rc2 Bb8 Qc5+ Kd3 d4 Ke4 d3 Bh3+ Nf5 Ng5+ Ke7 Rb1 Ne3 Be6 f1Q Nh3 d2 Rd6 d1B Rd2 Rg8 h8N Bf2 h7 Bg3 Ra1 Bh6 Ng6+ Ke8 h8R Bg5 Ngf4 Ke7 Rb1 Rd8 Rc1 Rd6 Rb1 Ng4 Kf5 Qg2 Ra1 Rc1 Rb1 Ba4 Ra1 Rc2 Rah1 Bb3 Ba7 Rad8 Bb8 Bc4 a7 Rd5 a8B R8d6 Kg6 Bd3+ Kg7 Bc8 Bb7 Ne3 Ba6 Bb7 Bf7 Kd7 Kf8 Ba8 Bg8 Rd4 Bgc4 Re4 Nfd5 Ke6 Ke8 Kf5 Bb3 Rh4 Bbc4 Ke4 Bb3 Kd4 Bbc4 Rdh6 Kd7 Rd6+ Kc8 Rf4 Nc3 Rf1 Be6 Ra1 Ncd5 Ra5 Bg8 Rb5 Bf7 Rd7 Be6 Rd6
k1rB1bn1/3N2b1/P2RP3/1p1p1NR1/N7/2nb4/nPBb1Knq/1RR1B3 w - - 0 1 legal: proof: f4 c5 d3 e5 d4 cxd4 fxe5 Qg5 Na3 Qf6 Nb5 Qd8 Nxa7 f6 g4 f5 Nb5 h5 Na7 b5 Nc6 f4 Qd3 Ra6 Qg3 Rb6 Na7 Re6 Nc6 Rf6 Qh3 Rf5 gxf5 Ba6 Qg2 Bc8 Qg4 hxg4 a4 d5 e4 Kd7 h4 Kc7 c4 Kb7 c5 g5 a5 f3 f6 g3 a6+ Ka8 h5 g2 h6 g4 h7 g3 f7 d3 e6 Qf6 e5 Qg6 e7 Bh6 e8R Ne7 f8N Rg8 h8B Qh7 Bg5 Bf5 e6 Bg7 Nd4 Qh2 Nge2 g1B c6 g2 c7 Be3 c8R g1B Rb1 Bh7 Bh3 f2+ Kf1 d2 Rc6 d1N Bf5 Bd2 Rd6 Nc3 Bc2 Bf5 Nd7 Bd3 Nf5 Rf8 Bh4 Ng8 Bd8 Nc6 Re7 Nb4 Rf7 Bgh6 Rg7 Nba2 Rg5 Re8 Bhf6 Bf8 Ba5 Rc8 Bfd8 Qe5 Kg2 f1N Bb4 Bh2 Kf2 Ne3 Rhc1 Ng2 Bba5 Qh8 Bb4 Be5 Bba5 Na4 Nc3 Beg7 Bb4 Qh2 Bba5 Nc5 Na4 Ne4+ Kf3 Bf4 Be1 Nec3 Kf2 Bd2
6NR/2pBP2N/1rP1R3/2qb2qk/PB1b1p1b/3B1Kb1/1pbR3N/2Nr4 w - - 0 1 legal: proof: d4 e5 dxe5 a5 e4 h5 g4 f5 f4 Be7 b4 axb4 e6 Bf8 e7 Kf7 e5 Ke6 Qf3 Nh6 Qh3 Kd5 Qh4 Nc6 e6 Ne5 fxe5 f4 Qg3 Nf5 gxf5 Kc6 Qg4 hxg4 Kf2 Kd5 e8N Ke4 h4 d5 a4 g5 c4 b5 f6 Kf5 c5 Kg6 c6 g3+ Kf3 b3 f7 d4 e7 g2 e6 d3 Be3 b4 Be2 d2 Ba7 d1B Rh2 b2 Bc5 b3 Nc3 b1Q Ra2 b2 Nf6 Qc1 e8B Be7 Bd7 Ra6 Ra1 Bc2 Ng8 Kh5 f8N Rb6 Bd3 Rh7 Na2 g4+ Ke2 g3 Nf3 g1B Bb4 Rh6 Nh7 Bd4 Rb1 Qg1 Nc1 g2 Ra1 Bg5 e7 Rd6 Ra3 Qf8 Rc3 Qg7 Rc4 Bf2 Re4 Bg3 Re5 Qc5 Re6 g1B Rf2 Qf7 Nh2 Qff5 Kf3 Ba6 Rg2 Bd4 Rd2 Bc4 Ngf6+ Kh6 h5 B5h4 Ng8+ Kg7 Nb3 Qg5 h6+ Kf7 Nc1 Rd5 Re4 Kg6 Re6+ Kh5 Nf8 Re5 h7 Re1 h8R+ Qh6 Rde2 Rd1 Nh7 Qhg5 Rd2 Bd5+
1nbk1rB1/5Bqr/1b2pRNP/6Nq/6N1/B1nbPRr1/2nPR3/RK5q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kd1 a5 Kc2 f5 b4 c5 h4 e6 e3 c4 g6 a4 h5 g3 d6 f3 b6 f4 b5 f2 g7 g2 h6 f3 b7 a3 b6 a2 Bd3 f1R Rh2 c3 Nh3 g1Q Ba3 f2 Nf4 Qh4 d7+ Kd8 Ng6 Ne7 g8B Rh7 Be2 Qhg5 Bh5 Nd5 Rg2 Re1 Rh2 f1B Re2 Nc6 b8N Bc5 b7 Bb6 Ne7 Rd1 Bhf7 Qh5 Ng6 Qgg5 Na6 Qgg4 Nc5 Nb8 Nd3 Qd4 Nf2 Qg7 Ng4 Re1 Kd3 c2 Nc3 c1Q Ne4 Nc3 Ng5 Nd1 Rb1 Qc7 Ra1 Qch2 Kc2 Qh1 Kc1 Bh3 Kc2 Rg1 Kc1 Rg3 Kc2 Kc7 d8R Bf1 Rf8 Kd7 Rc1 a1N+ Kb1 Nc6 b8R Nc2 Be8+ Kc7 Rf3 Kd8 Rb7 Nb8 Rbf7 Ra6 R7f6 Ra8 Ref2 Bd3 Re2 Ra7 Bef7 Re7 Ka2 Re8 Ra1 Rf8 Kb1 Nc3+
1N1R3R/2K1n1bB/B2NR3/1R2r1p1/1rn2rPP/kbP1bqr1/2q1N3/B1r5 w - - 0 1 legal: proof: g4 b5 d4 h5 a4 e5 axb5 c5 f4 cxd4 fxe5 h4 Qd3 Qa5+ Qc3 Qd8 Qg3 hxg3 Kd2 Ke7 Kd3 a5 Kc4 f5 Kc5 d5 h4 g5 e4 d3 b4 d2 b6 d1R e6 a4 e5 f4 b5 d4 b7 f3 b6 d3 Bd2 g2 Ra3 f2 Rh2 Rc1 Nc3 Nc6 b8R Ra5+ Nb5 Bg7 b7 Qf8 Kb6 Qf3 Ra2 a3 Ra1 a2 Be3 d2 Rb1 a1B Nd6 d1Q Ba6 f1R Rb5 Bd4+ Kc7 Ra4 Rh3 Rb4 Ne2 g1R Ra8 Rh7 b8N Rg3 Bd2 Rf2 Bc3 Be3 Ba1 Na5 c3 Nc4 Rh1 Qc2 Re1 Bb7 Nd7 Bd5 Rd8 Nf6 Rh8 Ng8 Nb8 Rf1 Nb7 Ke8 e7 Rh6 Rd1 Re6 Re1 Kf7 e8R Ne7 Rc8 Nb6 Rcd8 Bb3 Nc5 Nc4 Ne4 Rg6 Nd6+ Ke6 Rb7 Kd5 e6 Rf6 Rb6 Rf4 Rb7 Nc8 e7 Kc5 e8B Ne7 Bc6 Re4 Rb6 Re5 Be4 Re6 Nc8 Qf6 Nf4 Bd4 Bg6 Qff5 Re4 Be3 Bh7 Qd5 Nh3 Rf4 Nd6 Qdd1 Ng1 Qf3 Rd4 Ree4 Ne2 Re6 Nf7 Ree4 Re6 Re5 Rd3 Qd1 Nd6 Qc2 Kd7 Kb6 Rd4 Ka5 Rd5+ Ka4 Kc7 Ka3 Ra5+ Ra4 Rb5 Rb4
1Rnn3R/N1B1p1rP/r1Rb2Bb/1b3nr1/kq1N1Nr1/5B1P/2R1P2b/1K6 w - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 f6 Qd2 f5 Qf4 Qc7 Qg3 Qd8 Qg4 fxg4 Kd1 g5 f4 a5 c4 d5 Kc2 Kd7 b4 a4 h6 d3+ Kb2 g3 h3 g4 c5 d2 h7 d1N+ Ka2 d4 b6 Kc6 b7 Kb5 c6 g2 c7 g3 f5 d3 f6 d2 f7 a3 Nf3 g1B Ne1 g2 Bb2 Nh6 Be5 Nd7 b8N Ba6 c8B Ka4 b5 Qa5 b6 Ne3 b7 d1R Nd3 Nef5 Nf4 Bb5 Nc6 Qb4 b8R Rd4 Bc7 Nb6 Nd2 Bh2 Nb3 g1R Bg2 Ra6 Bf3 Rhg8 Rc1 R1g5 Na7 R8g7 Kb1 Re4 Be6 Nc8 Rc6 Rc4 Rc1 a2+ Ka1 Rd4 R1c2 Rc4 Kb2 a1B+ Kb1 Be5 Bed5 Bd6 Bde4 Nd4 Bg6 Nhf5 Bfh5 Ne6 Bf3 Qc5 Nd4 Qb4+ Ka2 Nd8 Ka1 Rg8 Ka2 Bg7 f8R Bh6 Re8 Rg7 Rh8 Rg4 Ka1 Rc5 Ka2 Nh4 Ka1 Rcg5 Ka2 Nf5 Ka1 Qc5 Kb1 Qb4+
1B6/Rrn1p3/NrP3qq/R1P2B1b/3b2Bb/1R4rn/1n1kPN1p/B2N1K2 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 c6 axb5 c5 dxc5 f6 h4 gxh4 g5 f5 Qd4 Qc7 Qf4 Qd8 Qg4 fxg4 b4 Kf7 f4 Ke6 c4 Kf5 g6 Ke4 c6 d5 f5 a5 f6 h5 c5 g3 g7 d4 f7 d3 b6 h3 b7 h2 b5 a4 b6 h4 Bh3 d2+ Kf1 Ke3 Ra3+ Qd3 Rb3 a3 Rc3 a2 Rb3 a1B Rb4 Na6 b8B Bd4 b7 Nh6 g8B Qg6 Be5 Bg7 b8R Ra7 f8N Nf7 Ra4 Bg4 Bg2 h3 Be4 Ng5 Bf5 Rb7 Ra5 Bf6 Nc3 Nc7 Bb2 d1N Ne6 Kd2 Ba1 Nb2 Nd1 Bh5 Bh7 Rg8 Bg4 Rb6 Rb7 Rb8 Rba7 R8b7 Bd6 Ne4 Be5 Bh4 Bd6 Ng5 Be5 Qf6+ Bhf5 Qg6 Bd6 Nb5 Bb8 Nc7 Nf3+ Kc1 Ne5 Kd2 Rg1 h1Q Nd3 h2 N3f2 Nh3 Ra4 Qf3 R4a5 Qf4 Rg2 Ne8 Nc7 Qfh6 Na6 Nc7 Ne4+ Kc2 Rf2 Kc1 Rf3 Kc2 Ke1 g2+ Nef2+ Kc1 Rd3 Kc2 Rb3+ Kc1 Ne3 g1R+ Nf1 Rg3 Ne3 Bg7 Kf1 Bd4 Ned1 Kd2
br1R3b/pBB4q/2p2r2/1bP1nNR1/qr3b2/4BKPP/N3nN1R/k4B2 w - - 0 1 legal: proof: d4 h5 f4 g5 a4 gxf4 g3 e5 dxe5 b5 axb5 h4 Qd5 h3 Qg2 hxg2 Kf2 Ke7 c4 Ke6 e4 d5 b4 f5 b6 f3 h3 f4 c5 d4 b7 d3 b5 c6 b6 d2 Na3 d1Q Nb5 Nd7 b8N Bg7 b7 Qa4 Be3 Nh6 Nc3 Qh4 Rd1 Nf5 Rh2 Qh7 Na6 Nd4 b8B Bb7 Nb4 Ne2 Bc7 Rab8 Nd3 Ba8 Na2 Rb4 Re1 Rhb8 Rd1 Kf7 e6+ Kf6 e7 Bh8 e8R Ne5 Rg8 Ke6 Rg5 Kf6 Ke1 f2+ Kd2 Ke6 Nf3 g1B Nh4 f3 Nf5 Kf6 Bg2 f1B Nf2 Nc1 Ke1 Bb5 Rd8 Ne2 Bf1 Ke6 Nd1 f2+ Kd2 Nd7 e5 Kd5 e6 Kc4 e7 Kb3 e8B Ne5 Bd7 Ka3 Bc8 Kb3 Bg2 f1R Nf2 Kb2 Ba6 Ka1 Bb7 Rfb1 Bf1 Rf4 Ng7 Rf6 Nf5 Rb4 Nh1 Nc4+ Kd3 Bf2 Ke4 Be1 Kf3 Bd2 Bg1 Bf4 Be3 Rg6 Nf2 Rd6 Nd1 Rf6 Nf2 Ne5+
1R5N/k2r2b1/P3b2q/p1Nq1B2/BB3p1n/P2R1P2/2pnrN2/n1BbK2R w - - 0 2 illegal: No possible last move, all moves rejected
1NNBqBRn/3Rb2p/3qr2P/1p4nP/KP1N2b1/1RRpr3/k4q2/5r1B w - - 1 2 legal: proof: d4 f5 b4 c5 e4 cxd4 exf5 a5 h4 a4 g4 Qa5 g5 Kf7 h5 Qb6 Qf3 Qh6 gxh6 Ke8 Qb3 axb3 Kd2 Kf7 c4 d5 a4 g5 f4 e5 f6 Ke6 f7 b6 c5 d3 Kc3 d4+ Kc4 b2 Kb5 Kd5 f5 e4 f6 e3 c6 d2 a5 d1Q c7 e2 a6 e1Q a7 g4 Ra4 g3 Nd2 b1R Bd3 g2 Rh3 Na6 Ne2 g1Q Nf3 Ne7 Bg5 Nc5 Ne5 Ne6 Ra3 Qgf2 Rb3 Ng6 Ka4 Be7 Nd7 Re8 f8B Nh8 Be4+ Kc4 f7 Qd3 Bf6 Ng5 Nb8 Bg4 c8N Qdg3 Bb7 Qd6 Bh1 Rd1 Rhf3 d3 Nd4 Qee2 Rf5 Rf1 Rd5 Qde6 Rd7 Qd6 Nbc6 Rb8 a8R Rb7 Ra5 Rc7 Nb8 Rc6 B8g7 Qee6 f8R Qee1 Rg8 Qe4 Rb1 Kc3 Rc1+ Kb2 Bf8 Ka2 Raa7 Rc5 Rac7 Re5 Rb1 Re6 Rc3 Bd8 Na7 R6e7 B8g7 Qg6 Nc8 Re3 Rbb3 R8e6 Bf8 Qe8 B6e7 Qdg3 Bd6 Be7 Bc7 Qd6 Bd8 b5+
b1bRB2K/p1N1b3/1p2N2b/3r1b1N/PRB5/4Pkp1/1P2r2p/1BRn2Bn w - - 0 1 legal: proof: g4 c5 d4 e5 dxc5 f5 h4 g5 Qd4 exd4 Bd2 fxg4 Bc1 g3 Kd2 g4 Ke1 Qg5 hxg5 Be7 Rh6 Bd6 Rh1 Bf8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 a4 h4 c4 d6 f4 b6 c6 d3 c5 h3 g6 d2 g7 d1B c7 g2 f5+ Kf6 c6 g3 Be3 Rh5 Nc3 Nd7 Rc1 Nh6 g8R Ng4 Nb5 Be7 Rd8 Nde5 Rc4 h2 Rb4 Nd3 Nh3 g1B Nf4 Kg5 f6 Bf2 f7 Bc2 f8N d5+ Kd4 Be1 Bg1 Ngf2 N8e6+ Kg4 e3 Kf3 Rh8 Nd1 Rd8 N3f2 Bc4 Bf5 Ke5 Rg5 Nh5 d4 Nc5 d3 Ne6 Bf8 Kf6 d2 Kf7 Bg7 Kg8 Bh6+ Kh8 Bb1 Bd3 Rd5 Bg6 Bf5 Be8 Bd7 c8B Rb8 Ba6 Rc8 c7 Bc6 Rd7 Ba8 Rd6 Rd8 c8B Rd7 Nef4 Rc7 Bcd7 Rc2 Nc7 Bg4 Bc4 Nc3 Bf5 Bh3 Bfg6 Bc8 Rd8 d1B Rb5 Re2 Bb1 Bc2 Nfe6 Bf5 Rb3 Nh3 Bf2 Bd2 Rc1 Nd1 Neg7 Bb4 Nge6 Be7 Bg1 Nhf2 Rb4 Nh1
4K2N/n2pBR1n/1qb3BN/2p3p1/3pB1rP/1NRPpRPk/1rr2R2/2b5 w - - 1 2 illegal: No proof kernel
4b2B/2kBpN2/p1rn3N/Pbr1nR1B/1qpK3R/1p1P2Pp/R2N4/2b4R w - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 b4 d5 h4 gxh4 Qg4 Bg7 bxc5 Na6 c6 Bf8 c5 Nb8 Qc4 dxc4 Ke2 b5 Ke3 h5 a4 a6 f4 b4 a5 h3 f6 h2 c7 Kd7 f7 b3 g3 h4 f5 h3 d3 Bg7 f8R Nc6 f6 Rh5 f7 Nd4 c6+ Kd6 Be2 Rf5 Nd2 Be6 c8N+ Kc7 Bb2 Qd7 Ra2 Nf6 Bh5 Qd6 Ngf3 Ne8 Nh4 Bd7 Rh8 Nf3 f8R Qb4 Nd6 Rc5 Nf7 Rc8 Nf5 Nd6 N5h6 Ne5 Kd4 Be8 Rh7 Bf6 Bc3 Bg5 Ba1 Kb8 c7+ Kb7 Nh8 Bf4 Rf5 Bb5 N8f7 Kc6 Rg1 h1B Bc3 Bd5 Rh1 Kb7 Ba1 Bdc6 Bb2 Be8 Rh8 Ra8 c8B+ Kc7 Bd7 Bg5 Rg8 Bf4 Rg4 Rc8 Rh4 Rc6 Nf3 Bc1 Nd2 Nf3+ Ke3 Rc5 Bh8 Ne5 Kd4 Rb8 Bg6 Rb6 Bh5 Rbc6
8/pN3npB/1R2bPr1/1pp5/kpR1BNPR/r4p2/KP3N2/bB1nN1q1 w - - 1 2 illegal: No proof kernel
2n2NkN/2Q2R2/2R2rNP/RpB3P1/1nP4K/3q4/Nnr2qn1/1nn1R3 w - - 0 1 illegal: No possible last move
4Q2r/4rN2/3n1R2/bP4n1/RNNP2qB/qNRP3k/b1KrR3/q1b2n2 w - - 0 1 legal: proof: e4 f5 a4 b5 axb5 d5 c3 d4 cxd4 Be6 Ra6 Bd7 Ra1 Bc8 f3 h5 exf5 g5 f4 gxf4 g4 Bd7 g5 Be6 Be2 Bc8 Bg4 hxg4 b4 Kf7 h4 e5 b6 c5 b5 a5 f6 Ke6 d3 Kf5 Kd2 a4 f7 f3 h5 f2 b7 f1N+ Kc3 a3 g6 c4 g7 a2 h6 e4 h7 e3 Qc2 e2 Nd2 e1R Ngf3 g3 Bb2 Kg4 Rc1 a1Q Qa4 g2 Qc2 g1Q Rh2 Nh6 Re2 Qe7 g8R+ Kh3 Nb3 Qg4 Nfd2 Nc6 b8N Ne5 Na6 Nf5 Nb4 Nd6 Qb1 Rb8 Kc2 c3 Nc4 Nf3 Ba3 Rb7 Qa2 Bh6 f8R Bd2 Rf6 Be6 Ra8 Rd1 Ra4 Ng5 Qb2 Qf8 Qa2 Re7 Qb1 Rg8 h8N Qa8 Nf7 Rh8 Nd5 Be1 Bc5 Qa6 Nb4 Qa7 Bb6 Bd5 Bd8 Qc5 Na2 Qa3 Nb4 Nge4 Rf5 Nc8 Na2 Qc5 Re3+ Qf3 Nba5 Rc7 Kb3 c2 Bh4 Rd2 Rf6 Ng5 Qb2 Ra7 Qa3 Rd1 Re2 Qf8 Qe7 Qg4 Qe8 Bb4 Nc3 Be6 Nd5 Qc5 Nd2 Re7 Rb1 c1B Rb2 Qf3 Rc2 Nd6 Rc3 Qh5 Kc2 Qg4 Nb6 Bc4 Nc6 Ba2 Nbc4 Ba5 Nb3 Qa3 Nb4 Rd2+
bNrB3b/1K3R1r/2B2pqb/3rPB1R/1R2R1Qn/n2B1Pq1/3P1b1k/8 w - - 0 1 illegal: No possible last move
1NqBQ1r1/2b2n1R/2P1b1b1/1Kq4p/4b2P/1N4bB/kqP2B1B/4NnN1 w - - 0 1 legal: proof: f4 e5 b4 c5 a4 d5 bxc5 b5 axb5 d4 e3 dxe3 Ke2 a5 Ra4 g5 Re4 Ra6 Rd4 Re6 Ke1 Re7 Rd6 e4 Rf6 Re5 fxe5 Qc7 Rf3 Qd8 Rf4 gxf4 Ke2 Ke7 h4 h5 d4 f5 g4 f3+ Ke1 e2 Kd2 e1B+ Ke3 a4 d5 f2 Kd4 a3 Kc4 f4 b6 f3 g5 e3 c6 a2 g6 a1Q b7 e2 g7 Nf6 e6 Kd6 g8N Ng4 e7 Be6 Nf6 Qc8 Nd2 Nh2 Nb3 Qb2 Ng4 Nd7 Ne5 Rg8 Nd3 Ne5+ Kb5 Nf7 Bh3 f1B Be3 Bg2 Bf2 Nf1 Qc1 Bh6 Qe3 Bf4 Qe4 Ba5 b8B+ Bc7 Ne1 Bg3 Qg6 Ke5 d6 Kd5 e8N Ke5 Bb6 f2 d7 Be4 d8B Kd5 Nf6+ Ke5 Ng2 e1Q Nd7+ Kd5 Be3 Qec3 Ne1 Qe5 Rh2 Qd6 Rg2 Qc5+ Ka4 Kc4 Bd4 Nd6 Qe8 Nf7 Be3 Nh2 Bd4 f1B Re2 Bg6 Bf2 Kc3 Re5 Bg2 Rf5 Qd6 Kb5 Nf1 Rf4 Bh1 Ra4 Bhe4 Ra7 Qba3 Rb7 Kb2 Ra7 Ka2 Rb7 Ba5 Bbc7 Qb2 Nb8 Qda3 Bd6 Ng5 Rh7 Nf7 Bf4 Bc7 Bc5 Bf2 Bh2 Bfg3 Bf2 Qc5+
Rn1r4/RP1nq2q/N6q/b1n1P2B/q2P1p1K/1N1N3N/kr2R3/4QRq1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b3 f5 Ba3 h6 Bd6 f3 Be7 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kf7 e4 c5 h4 a5 d4 a4 b6 g4 b4 g5 f6 g3+ Ke1 a3 e5 g2 Kf2 a2 b7 c4 h5 g4 h6 c3 d6 Ke6 h7 Kd5 f7 c2 d7 c1N b5 Qe7 d8N Nf6 b6 Nfd7 Nc6 Nb3 Qe1 Nbc5 Nh3 Rg8 Kg1 f2+ Kh2 Ra3 h8R Rb3 Rg1 Rb2 Be2 f1Q Nd2 Qf2 Rh1 Qfh4 Nb3 Qh7 Rf1 Qh6 Bd1 Kc4 Nb4 Qh7 Nd3 Qh6 Rb1 a1Q Rh7 Qa3 Be2 Qa4 Rd1 Rh8 Rd2 Rg8 Bd1 Rh8 Re2 Rg8 Kg1 Rh8 Kf2 g3+ Kf3 g1Q Kg4 g2 Rg7 Qh2 Rh7 Bg7 f8R Bf6 Rc8 Rd8 Rf7 Nc6 b8N Qh1 Na6 g1Q+ Rg2 Bh4 Ra8 Ncb8 Bf3 Bg3 Re2 Qhh2 b7 Qh7 Rf8 Qhh1 Ra7 Qhh2 Ng5 Q2h6 Rh8 Bh4+ Kh3 Bf2+ Bh5 Be3 Rf8 Bd2 Kh4 Kc3 Rg8 Kc2 Ndc1 Kb1 Nd3+ Ka2 Re8 Qed6 Nh3 Ba5 Qd2 Qde7+ Ng5 Rc8 Qe1 Nc6 Rg8 Rc7 Rga8 Ncb8 Na1 Rc8 Nb3 Qef8 Nh3 Rd8 Re3 Qe8 Re2 Qee7+
3r1q1B/n2KP2B/7R/k1pNq1r1/1r1q1NrN/3b1BP1/bb1B1NP1/2Q5 w - - 0 1 legal: proof: b4 d5 a4 b5 f4 g5 axb5 e5 fxe5 Nc6 c4 dxc4 Ra3 Nce7 Rf3 Nf5 Rf4 Ng3 hxg3 gxf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 d4 Kb6 d5 a5 e6 f5+ Ke5 h5 e4 c3 d6 c2 d7 h4 e7 h3 Kd6 f3 e5 a4 e6 f2 Be2 f1B Bd2 c1R Nc3 a3 Ne4 h2 Nf3 a2 Nf2 a1Q Nh4 f4 Bf3 Bg7 e8B Bb2 Bg6 Rb1 Qc1 Ne7 Bh7 Nc6 e7 Bd3 Ke6 Ra2 Kd6 Qf8 d8N Na7 Ne6 Ba6 Kd7 Ra4 Bd1 f3 Nf4 Bc4 Be2 Ba2 Bd1 Kb7 b6 Bd3 b5 Qb8 Be2 Qe5 Bd1 Rg8 Be2 Rg5 Bd1 Ka8 b7+ Kb8 Ne2 Bd5 Ng6 Bc3 Nh3 f2 Bg8 Ra3 Bh7 f1Q Be1 Nc8 Bd2 Ka7 b8N Kb6 Na6 B5c4 Nb4 Ra8 Nd5+ Ka5 b6 Qe3 b7 Qe5 Nf8 Ba2 Ng6 Qf8 Nef4 Rb4 Bf3 Na7 Nf2 Qb2 Rf1 h1R b8B Qe1 Bd6 Rh4 Be5 Rhg4 Bh8 Qe5 Rh1 Bd4 Rh6 Qc3 Bf6 Qc4 Bg7 Bb2 Nh4 Qcd4 Bh8 Rd8+
1nb2b1n/2Q4n/P2Nk1N1/NR1RP3/5rP1/1r1RnpKb/4b3/1Bb1R2N w - - 0 1 legal: proof: h4 e5 g4 d5 b4 a5 c4 axb4 cxd5 e4 Bb2 e3 Bf6 gxf6 fxe3 f5 e4 f4 e5 Qg5 hxg5 Bd7 Rh6 Be6 Rh1 Bc8 Kf2 Ke7 a4 b5 d4 c5 e4 f5 a5 h5 d6+ Ke6 g6 h4 a6 h3 d7 f3 d8R h2 g7 b3 Be2 b2 Nc3 b1B Kg3 f2 Na2 c4 Nh3 b4 Rd5 c3 Qc2 b3 Bd3 b2 Re1 h1B Nc1 Ne7 g8N Ng6 Raa5 Bg2 Nb3 Ra7 Rac5 Rb7 Na5 Rb3 Rb5 Ba2 Qc1 b1N Ne7 Nd2 Bb1 Nf3 Qf4 c2 Qc1 Kf7 e6+ Kf6 Qf4 c1B Qd6 Rg8 Qc7 Nh8 Ng6 Bf1 e7 Ke6 e8N Ng5+ Kh4 f4 e5 f3 Kg3 Bg2 Nd6 f1N+ Kh4 Rb2 Nf2 Nh7 Nh1 Ne3 Kg3 Rb3 Ne4 Bh3 Rd8 Rg7 Rd7 Re7 d5+ Kf7 d6 Rc3 Rd8 Bc4 d7 Ra3 Re8 Rb3 d8R Bcf1 Rd3 Ke6 Red8 Be2 R8d5 Rf7 Nd6 Rf4
B1nB2R1/pRnnq1B1/k7/6PP/1q1r1N2/1r1P2Q1/1pb1KnRR/1Bq5 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 e4 dxe4 g4 h5 gxh5 g5 Nc3 g4 Nd5 Bf5 axb5 Bd7 b6 Bc8 b5 Bh6 Nb4 Bg5 fxg5 cxb4 h4 Kd7 c4 e5 h6 f5 h5 g3 c5 b3 b7 Kc7 c6 Kb6 h7 e3 c7 e2 Nf3 f4 Rg1 e4 Ne5 f3 Nd3 g2 Qc2 b2 Ra4 Nd7 Qb3 Ne7 Nf4 Rb8 Qd3 Rg8 h8B Rg6 Rh1 g1N Bg7 Nh3 Rh2 Rd6 Bg2 Nf2 Rc4 Qf8 Rc2 Rd4 Bh1 Ka5 b6 Qf7 Qe3 Ka6 Qb3 Qc4 Qc3 Qb4 Rg2 Ra8 b8R Bb7 Rg8 Nc8 Rh2 Rb8 Qe3 Bc6 b7 Ba4 Rg2 Qe7 d3 Qb4+ Bd2 Qe7 Ba5 Bb3 Rc1 Bc2 Kd2 e1N Rh2 Ng2 Rg1 Ne1 Rg3 Ng2 Qe1 Ne3 Rgg2 Nd5 Bb6 Ng4 Qg3 f2 Ke2 e3 Ba5 Nd6 c8B Nc7 Kf3 e2 Bb6 Ndf6 Be6 e1Q Ba2 Nc8 Bb1 Q1b4 Ba5 Nd7 Bb6 Ngf6 Ba5 Ne4 Ke2 Nb5 Bd8 f1Q+ Ke3 Qc1+ Ke2 Ra8 b8R Nc7 Rb7 Rb8 Rg1 Nf2+ Be4 Qe6 Rgg2 Qf6 Rb5 Rb6 Ba8 Qfe7+ Qe3 Rc6 Rb7 Rc3 Qe5 Rb3 Qe3 Ne4 Qg3 Nf2+
n2k4/3PN3/2qp1RNp/2b3nP/1B1Pr1b1/3R1rR1/Q1p2NKr/3NR1n1 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 a6 a4 Bg7 axb5 Kf8 b6 Ke8 b7 Bf8 b4 Ra7 d6 Kd7 e3 Ke6 d7 Nh6 b5 Kd6 b6 Ng8 Qf3 Ra8 Bb5 axb5 Qg3+ Ke6 Qd6+ exd6 Ra3 Ke7 Ra4 Na6 Ra1 Nb8 Kf2 f5 d4 c5 h4 h6 g4 b4 h5 f4 e4 c4 e5 c3 e6 c2 g6 f3 g5 b3 g7 b2 g6 Ra3 Rh3 Qc7 Bd2 Na6 b8Q Bb7 Qa8 Nf6 g8R Qc6 g7 Nc7 Nc3 b1N Nd1 Nh7 Bb4 Ng5 Qa6 Ba8 b7 Nd2 b8N Kd8 Qa4 Re3 Qa2 Re4 Rg3 Bb7 Nh3 Na8 Kg1 f2+ Kg2 f1R Rd3 Rff4 Nhf2 Ndf3 Rb1 Ng1 e7+ Kc7 e8R Rh4 Rc1 Be7 Ref8 Bd8 Rf6 Ba6 Ra1 Bc4 Rb1 Be6 Rc1 Bg4 Rb1 Qa4 Nc6 Rh1 Ne5 Qc6 Ng6 Rh3 Re8 Rf8 g8N Rh4 N8e7 Rh2+ Kf1 Rf7 Rbb3 Rf8 Re6 Rf3 Rf6 Kb7 Rbc3 Bb6 Ra3 Kc7 Rac3 Rh4 Kg2 Bc5 Ra3 Rf5 Rg3 Rf3 Rd3 Rh3 Re6 Rh1 Rf8 Rh3 Rff6 Kd8 Re5 Ref4 Ree3 Re4 Re1 Rh2+
8/r5n1/n3KBPP/N3p1rR/1PNQqRpb/3N1r2/1R2prR1/k1nN4 w - - 0 1 legal: proof: f4 d5 e4 dxe4 g4 b5 b4 h5 c4 g5 cxb5 Be6 Bh3 Bb3 axb3 Nc6 fxg5 Na5 g6 Nc6 g5 Nb8 Bg4 hxg4 Kf2 Kd7 Ke3 Kd6 Kd4 f5 h4 a5 h5 f4 g7 a4 g6 f3 h6 c6 b6 f2 b7 f1R b5 e3 b6 e6 Bb2 e2 Ra2 a3 Nh3 Rf5 Nf2 Raa5 Rh5 Rf6 Nc3 Qe8 Nd3 Na6 b8N Rg5 b7 Be7 Nd7 Rf2 b8R Nf6 N7e5 Rf8 g8R c5+ Kc4 Rf7 Rf8 Qc6 Qg1 Ne8 Nd1 R7f3 Rf4 Ng7 Bc3 Bd8 Rb2 a2 b4 a1R Rc8 Rf1 Ra8 Qe4+ Qd4+ Kc7 Ra7+ Kb6 Raf7 Rg3 Rf2 Rf3 Rg2 R1f2 Rf4 Ra4 Kb3 Kb5 Nc4 Qa8 Qe3 Ra5 Bf6 e5 Kc3 Ka4 Qd4 Qb8 Nce3 Ka3 Kc4 Qa7 Kd5 c4+ Kd6 Qa8 Kd7 c3 Nc4+ Ka4 Kd6 c2 Kd7 Nf5 Ke6 c1N Qc3 Rb5 Bg7 Nb8 Ne1 Qe4 d4 Rb7 Nd3 Ra7 Bh8 Bb6 Bg7 Rf1 Bf6 Na6 d5 Rc7 d6 Bf2 d7 Ra7 d8N Ng7+ Kd6 Bh4 Nb7 R1f2 Nba5 Na2 Nd2 Nc1 Qd4 Ka3 Rb1 Ka2 Rb2+ Ka1 Ndc4 Ne8+ Ke6 Ng7+
2R1B1kb/pPb2br1/b1b4R/P4Q2/1B1rp1K1/p1N1RP2/1p2B2R/3q2B1 w - - 0 1 illegal: No proof kernel
3n3b/Pp2BB2/KP1B1b1q/R5b1/bb6/R1r1r1Q1/PqBRR1Nr/n1k5 w - - 0 1 illegal: Other
Rn1k3q/2Rq2bb/1p4K1/2B1P1RQ/q6q/NP1Nr1N1/1q2r2P/1Nr1n2R w - - 0 1 illegal: No extended proof kernel
1Bkn3N/Pn1p2b1/1QrP1p2/1N1r1B2/B1R1rbbK/q1N2P2/1q1n4/1N4B1 w - - 1 2 legal: proof: b4 b5 c4 a5 a4 h5 g4 e5 gxh5 Ra7 d4 Ra8 Ra3 Qf6 Rd3 Qd8 cxb5 axb4 d5 Na6 Rd2 Nb8 Rd4 exd4 e4 c5 h4 g5 e5 c4 a5 c3 h6 f6 a6 c2 h7 d3 h5 g4 b6 g3 b7 b3 h6 g2 e6 b2 e7 d2+ Ke2 Bg7 Kf3 Qb6 Kg3 Nc6 b8B Nd8 a7 Ba6 Ne2 g1B Rh4 Nb7 Rc4 Bh2+ Kh4 Bf4 Nec3 Qb3 Qf3 d1R Qe3 Qa3 Qb6 Re1 Bh3 Re4 Be3 c1Q Bf5 Bb5 Bd4 Ba4 Bc5 Bd1 Bd4 Bh5 f3 Bg4 Bg1 Qd2 Bd6 Rc8 Bb8 Re6 Bc2 Re4 Bb3 Rc6 Ba4 Kf7 e8B+ Ke7 Bg6 Qd4 Qa6 Kd8 Bf5 Kc8 Qb5 Ne7 Qb6 Rg8 h8N Qd2 h7 Qe2 Nd2 b1N Nf7 Re8 h8N Rg8 Nf1 Qeb2 Nd2 Re8 d6 Re5 Ng5 Rb5 Ne6 Rd5 Nde4 Nd2 Nd4 Rc7 Ndb5 Nc6 Nb1 Ncd8 Nec3 Rc6 Bb3 Re7 Ba4 Re4
1B4K1/1NN3rR/5q1r/pnPBQPB1/3pN3/2b2q1r/1n1Pb3/Nnq2k1B w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 h5 g4 a5 c4 d5 c5 b3 f6 h3 f4+ Kh4 f5 Kg3 g5 Kf2 f7 h2 g6 b2 b7 h4 b6 h3 g7 Ra7 Qa4 Nf6 g8B Nfd7+ Ke6 Bg7 f8N Na6 Kf7 e5 b8N e4 b7 e3 Qe4 e2 Nc6 e1Q b8B Rh6 Ne6 Nc7 Bg2 Bc3 Qe5 Ba6 Nf3 Nb6 Na3 b1N Bb2 Be2 Nfg5 Na4 Nc2 Qc1 Na1 Nb5+ Nc7 Qd6 Nd8 Qf6+ Ke8 Rb7 Bf7 Ra7 Kf8 Rb7 Kg8 Ra7 Re1 h1Q Nb7 h2 Be4 Qf3 Rh1 Bb4 Bc3 Nb2 Bd4+ Kg2 Be3 d4 Bed5 Rh3 Ne4 Bc3 Bg5 Rh6 Be8 Rh3 Bec6 Rh6 Rf1 h1R Rf2+ Kg1 Rh2 Rh3 Ne8 Kf1 Nc7 Rg3 Rh8 Rh6 Rh7 Rgh3 Ned6 Qh5 Bh1 Qf3 Ne4 Ra6 Bd5 Re6 Nb3 Re7 Na1 Rg7+
1n2k3/b3N3/R2p2b1/B1RN1N2/nK2n1P1/1P1Pprr1/qrN4R/3qQqR1 w - - 0 1 illegal: No extended proof kernel
bnRn3N/2P2N1N/2p1b2p/1N1B1B1b/1B6/P1nQr2q/bKP4k/r4Bb1 w - - 0 1 illegal: No proof kernel
1n1b3R/1qB3k1/Qr4pb/3P1B1q/3RBp1B/2q1rP1q/2R1R1Pn/4Kn1N w - - 1 2 illegal: No extended proof kernel
1q6/R6b/p1Nrb2b/PPbq1kqr/2BB3B/NQ2nKpn/5P1N/N6B w - - 0 1 legal: proof: b4 e5 c4 b5 g4 bxc4 d4 f5 gxf5 h5 dxe5 Rh6 a4 Rh7 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 e4 Kf7 Ke2 g5 h4 c5 b5 d5 h5 a6 h6 d4 f6 Ke6 a5 g3 f7 c3 h7 c4 Bb2 d3+ Kf3 g2 Ba1 c2 Rh5 c1Q Ne2 g1Q Bg2 c3 Bh1 c2 Na3 d2 Bd4 Qb2 Nc1 Nf6 Nb3 c1B Na1 Nbd7 Qb3+ Nd5 Rh3 Bh6 f8B Nc5 Be7 Nd3 Rh5 Nf4 Rh2 Rf8 h8N Nh3+ Nf7 Rh8 Rg2 Qb6 Rg3 Qb8 Nd8+ Kd7 Bf6 Ne3 e6+ Kd6 e7 Be6 e8B g4+ Ke2 Bf8 Bf7 Rh5 e5+ Kd7 Bh4 Bc5 Nc6 d1B+ Kd3 Bc2+ Ke2 Qc3 Rf3 g3 Rf6 Qf1+ Kf3 Bh7 Rg6 Qfd3 Rg7 Qg6 Bg8+ Ke8 Rb7 Qg5 Ra7 Kf8 Bf7 Kg7 Bg8+ Kg6 Bf7+ Kf5 Bg8 Bf7 e6 Qe1 e7 Be6 e8N Bd2 Nf6 Bc1 Re7 Ra7 Rg7 Rd7 Ng4 Rd6 Nh2 Qc3 Ra7 Qe1 Bb2 Qc3 Bf7 Qe5 Bd4 Qgg7 Nd8 Ng2 Qa2 Bd7 Nc4 Bh6 Nc6 Qg5 Qb3 Ne3 Na3 Bc8 Bd5 Be6 Bc4 Qd5+
q1RRqk2/1r3p1b/B2pB3/2Kn1PB1/3nqR2/7P/qRBPQr2/2b1r2N w - - 1 2 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 Na6 f5 Rh4 Nc3 Rh8 Nd5 Nb8 Nf4 exf4 Kf2 a5 e4 g5 c4 a4 h3 a3 e5 f3 Ke3 f2 Kd4 a2 b6 g3 c6 g2 e6 g4 c7 g3 c5 Nf6 b7 Nd5 c6 Ba3 Qe2 Ra7 Bb2 Kf8 Rc1 a1Q Rc2 Qa2 e7+ Kg7 Ba1 Bc1 Rb2 Qe8 Kc5 Rh6 Rh2 Re6 Rh1 Qg8 e8R Qh8 Qh5 Re1 Bd3 f1R Bc2 Rf2 Ne2 g1Q Rd8 g2 Ng3 Qe8 Qe2 Kf8 Rh2 Qf1 Nh1 g1Q Rg2 Qh2 Rg4 Qhg2 Rf4 Qg8 Rb6 Qfg1 Bf6 Q1g2 Rb2 Qe4 Bg5 Na6+ Kd6 Nab4 b8R Ba6 c8B Rb7 c7 Nc6 Kc5 Nd4 Ra8 Rb3 Bb7 Bb5 Qf3 Be2 c8B Rb4 Ba6 Rb7 Bc4 Bd1 Qd3 Bh5 Qe2 Bg6 B4b3 Bh7 Rb8 Rb6 Ba6 Rb7 Rbc8 Qg6 Bb5 Qga6 B5c4 Qa8 Ba6 Nc3 Be6 Nd5 Rc6 Nb6 Rc7 Nd5 Rcc8 d6+
6rr/2n2bBp/pq1r1RQP/5B2/N1PP2B1/bK1N2p1/nB1b3k/2N1N1q1 w - - 0 1 illegal: No proof kernel
2n2Q2/BK4bB/2rnk3/1N6/b3nBrN/PRpp2p1/1nnP1BP1/3Nq1N1 w - - 0 2 legal: proof: c4 b5 e4 bxc4 b4 f5 exf5 a5 h4 g5 b5 g4 a3 c6 Ra2 Qc7 Rb2 Qf4 Rb4 Qg5 hxg5 axb4 Ke2 Kf7 Ke3 d5 Kd4 e5+ Ke3 h5 f4 d4+ Ke4 c5 Kd5 c3 f6 g3 b6 c4 f5 e4 b7 b3 Qg4 e3 Rh4 b2 Bd3 e2 Qf3 c2 Nc3 b1Q Bb2 e1N Nb5 Nc6 b8B c1N Bf4 Ra6 Qf2 Nh6 g6+ Ke8 f7+ Ke7 g7 Bd7 Rh1 h4 Bc3 Be8 g8N+ Kd7 f6 h3 Ne7 h2 Bc2 Na7 Bh7 Rg8 Nf5 Nc8 Ne3 Rc6 Nd1 Bg7 f8B Nf5 f7 Nc2 Bc5 Nd3 Ba7 Nb2 f8N+ Ke7 Bb4+ Nfd6 Bbc5 d3 Ng6+ Kd7 Nh4 c3 Qf3 Qc1 Bf2 Qa1 Ne3 Qe1 Nd1 Ke7 Ne2 Kf7 Rf1 h1N Ng1 Qe2 Re1 Qf1 Re4 Qe1 Rb4 Ke7 Rb3 Kf6 Bfc5 Nf2 Bce3 Nfe4 Bf2 Rc7 Nd4 Ba4 Nb5 Rd7 Kc6 Ke6 Bh6 Rb7 Qf8 Rb6+ Kc7 Ra6 Bf4 Rc6+ Kb8 Be5 Ka8 Rg4 Kb8 Bg7 Ka8 Ndc4 Kb7 Nc4d6+
Brb3B1/rRpR1P1N/q1B3R1/1pB3pQ/2kbb1P1/3n4/1P4rR/3nK1b1 w - - 0 2 illegal: No proof kernel
2K2r2/3B1Nq1/1Q1B1B1P/pN1p1p2/1bb1PPN1/nr1nB1r1/2k4N/nn5R w - - 0 1 illegal: No possible last move, all moves rejected
B1rB3b/nq4Nk/Rp3n1B/1b2n1P1/1N3p2/p2r1Q1P/PN4BN/5Kbb w - - 0 1 legal: proof: f4 c5 g4 h5 e4 g5 b4 d6 bxc5 Bg7 Na3 gxf4 g5 d5 exd5 Bf8 Rb1 Bg4 Rb3 Bh3 Rg3 Bc8 Rg4 hxg4 c4 a5 d4 f5 d6 Kf7 c6 Kg7 c5 e5 c7 g3 c6 g2 d5 f3 d7 f4 d6 a4 Bb2 Ra6 Nc2 a3 Nb4 Qe7 d8B Nf6 d7 f2+ Ke2 e4 Nf3 g1B Bg2 e3 Kf1 Ra4 h3 Ra8 Nh2 Kh7 Qf3 Bg7 Be5 Re8 Bd6 Qf7 Bf8 Bh8 Bh6 Rg8 Be7 Ra5 d8N Rd5 Ne6 Rd3 Bd8 b6 Ng7 Bg4 c8B Qb7 c7 Nc6 Bd7 Rf8 c8N Na7 Bc6 Bd7 Bd5 Bb5 Nd6 Rg8 Nc4 Re8 Ke2 f1B+ Ke1 Be2 Nb2 Bd1 Bc6 Bb3 Kf1 Bd5 Bc7 Rc8 Bd8 Qf7 Ba8 Qb7 Ke2 Bf2 Rc1 Bg1 Ke1 e2 Rc5 Bd7 Ra5 Bb5 Bf1 Be4 Ra6 Bd5 Qh5 Bh1 Bg2 Rg3 Kd2 e1N Qf3 Nd3 Ke2 Ne5+ Ke1 Nc4 Kf1 Ne5+ Qe2 Rd3 Qe3 Nd5 Qf3 Nf6
NnR2Bq1/p2b4/1R1P1RrP/Pp2r2Q/B5BK/1np4B/2Rb1r2/b5kb w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 b4 exf4 Na3 Qe7 bxc5 Nd7 c6 Nb8 c5 Qd8 Nc4 dxc4 Kf2 Ke7 a4 Ke6 h4 Kd5 d4 Ke4 c7 g5 a5 f5 c6 f3 Kg3 c3 d5 g4 d6 f2 h6 Nf6 h5 f4+ Kh4 g3 h7 g2 Rb1 f3 Bh6 Bd7 c8B Rg8 h8R Rg6 Nh3 g1B Ng5+ Ke3 c7 Ne4 Bh3 f1R Rb6 f2 Rh2 Nc5 Bg7 Re1 Rh6 f1B Qd5 Be7 Bf8 Bg2 Qe5+ Kf2 e4 Re3 Qf5+ Rf3 e5 Nb3 e6 Kf1 Bg4 Bh1 Rc2 Be3 Qf7 Bf6 e7 Rf2 e8B Bd2 Qd5 Kg1 Qe5 Bf5 Ba4 Bd7 Qc5 Bd4 Qe5 Qe8 Ne6 Bc5 Qh8 Ba3 Qh7 Rg5 Rf6 Rg6 h6 Bac1 Qf7 Bb2 Bh3 Ba1 Bg4 Rg5 Qh5 Re5 Bh3 Qf7 Bg4 Qg8 Bh3 Bb5 Bd7 Bbc6 c8R Bb5 Nc7 Bbc6 Bdg4 Bd7 Ra6 b5 Rb6 Na6 Rd8 Rc8 Na8 Nb8 Re8 Rcc5 Rd8 Rg5 Re8 Rg6 Rc8 Re5
1N1NnrbK/2b2pR1/3pP1q1/2p2n1k/1R2BqN1/4N3/rnPn1PR1/4Q1R1 w - - 0 2 legal: proof: d4 a5 h4 b5 b4 g5 a4 e5 dxe5 gxh4 Ba3 Na6 axb5 Ra7 b6 Ra8 b5 Nb8 Bb4 axb4 Kd2 h5 Kd3 c5 Ke4 d6 g4 b3 g5 h3 b7 h2 e6 b2 Kf5 h4 e4 h3 e5 Bg7 b6 Nd7 b8N Ra2 b7 Kf8 g6 Qa5 Nc6 Nb6 b8N Qd2 Na3 b1N Nf3 Nc4 Nd8 Nb2 Bd3 Nf6 Be4 Ne8 Nc4 Bf6 Ne3 Kg7 Rg1 Kh6 g7 h1Q g8R h2 R8g2 Rf8 Qe1 Kh5 Rg7 Bb7 e7 Qg2 e6 h1N Nh2 Qc1 Nhg4 Nd2 Rb1 Bc3 Bc6 Ba5 Bd5 Bc7 Be4 Nbc4 Rb4 Nb2 Qe2 Ba6 Qe1 Bd3 Rg8 Ng7+ Kf6 Ng3 e8R N3f5 Bb7 Nd4 Bc6 Bh7 Be4 Ngf5 Rg6 Nb5 Rg7 Bg8 Rh7+ Nh6 Kg7 Qg3 Kh8 Qg2 Rg7 Nf5 Nh2 Qg6 Rg2 Ba5 Nhg4 Nc7 Re7 Ne8 Reb7 Na4 Rb1 Nb2 Rb4 Bc7 Qe2 Qh1 Rbg1 Qh2 Qe1 Qf4
RNk5/r1BRPb1B/1B4n1/1nr1qn2/1pp1K2p/4QP2/qpPB1b2/2R1R3 w - - 0 1 illegal: No proof kernel
1n3KR1/2R2PB1/3P3p/2pQ1b1p/5r1R/kbBpr2P/B1q1Rb2/1b1B1Nn1 w - - 0 1 illegal: No proof kernel
r3Nbk1/1p6/R4PB1/2b1N1R1/2PnB1Kr/2n1b1p1/1N1Pnq1N/Nb1N4 w - - 0 1 legal: proof: e4 d5 b4 a5 g4 c5 Ba3 h5 gxh5 f5 exf5 d4 Qc1 Kf7 bxc5 Ke8 Bb4 axb4 c4 Nd7 Qc2 Nb8 Qc3 dxc3 Ke2 Kf7 Kf3 e5 h4 g5 a4 e4+ Kg4 e3 f4 b3 a5 e2 h6 e1B h5 c2 c6 c1B a6 b2 c7 Rh7 a7 Na6 Bg2 Qd3 Nc3 b1N Nd1 Qd8 Nf3 Qd6 Rg1 Qe6 Nh2 Qe8 Be4 Nb8 Ra6 Bd7 c8B Bc6 f6 Qd7+ f5 Rh8 h7 Qe7 h6 Ke8 f7+ Kd8 f6 Bf2 Bcf5 Nc3 Bg6 Qc5 Rg2 Ne7 Rg3 Bg7 f8N Ned5 Nd7 Ne2 Rg2 Qb6 Nc5 Ndc3 Nb3 Ba3 Na1 Be3 Rg1 Bgf8 Rg2 Rg8 h8N Bac5 Nf7+ Ke8 h7 Rh8 Rg1 Bd5 Ne5+ Bf7 Rg3 Nc6 Nd3 Ncd4 Rg2 Ng1 N3b2 Nge2 Bgf5 Bg6 Rg3 Rb8 a8N Kf7 Nc7 Rc8 Ne8 Ra8 Kh3 g4+ Kh4 Rg8 Rg1 Rg7 h8N+ Kg8 Nf7 Bh7 Bg6 g3 Ne5 Rf7 Rf1 Re7 Rf5 Rg7 Bh5 Rg4+ Kh3 Bg6 Rg5 Qa7 Ng7 Bf5 Bg6 Qb6 Ne8 Qa7 Bg2 Bb1 B2e4 Rh4+ Kg2 Qb8 Nd7 Rg4 Kh3 Qf4 Ne5 Qf2 Rf5 Rg5 Kh4 Rh5+ Kg4 Rh3 Rg5 Rh4+
b1n3N1/n2pn3/KNPRR1Pb/Rq6/B2R2rB/kP4n1/3p4/b1RRb3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 f5 Qb6 Qe2 Qc7 Qd1 Qd8 h4 Qb6 g4 Bg7 Qf3 Qc7 Qf4 gxf4 g5 Qd8 g6 Bf8 Bc4 a5 Bd2 Ra7 Bd3 Rc7 Bc1 Rc3 Bc4 Rg3 Bf1 Rg5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 h5 Kd3 e5 Kc4 a4 f7+ Ke7 g7 Kd6 f6 d3 b3 h4 g6 a3 b6 e4 Kb5 a2 c4 e3 c5+ Kd5 b7 f3 c6 h3 Ne2 h2 Ng3 f2 Nd2 e2 Nge4 e1B Nc4 Ne7 g8R Na6 b8R Rh4 Bg5 d2 Rc1 a1B Ra8 Bh6 f8R Rg4 f7 Bb7 Bh4 Nc8 Nb6+ Kd4 Bc4 f1N Nf6 Ng3 Rh8 Qe7 Re8 Nf5 f8R Qe2 Ng8 Nfe7 Rf6 Nc7+ Ka5 Kc5 Rd6 Qd3 Bb5+ Qc4 Rf1 h1N Ba4 Ng3 Rf4 Nb5 Rfd4 Nba7 Rh7 Nef5 Ree6 Nfe7 Rd1 Qe2 Rf7 Qc4 Rf1 Qd5 Rb8 Ba8 Ka6 Nb5 Rb7 Qc4 Ra7 Kb4 Rc1 Ka3 Rb7 Bf2 Rfd1 Be1 Rb8 Nca7 Rf8 Nac8 Rf5 Nba7+ Rb5 Qc5 Ra5 Qb5+
1qN1N2N/5n1p/k3N1qP/5K1P/2qNBR1P/bR4r1/3bq1br/b1n1BN2 w - - 0 1 illegal: Other
1rB1bnBr/1K1BB1p1/N2bB1PB/2b1bRqP/1Rpk4/2q2n2/1q1N2P1/8 w - - 0 1 illegal: No proof kernel
2r1R2K/r2qN2p/5pPP/k3rN2/2bNrP1B/n3q1N1/n2bN2b/1N1R3B w - - 1 2 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 g4 Qf3 gxf3 Kf2 Kd7 Ke3 Kc7 d4 e5 g4 a5 h4 f2 c4 a4 h5 a3 c6 Kb6 c7 a2 d5 Qh4 g5 Bg4 c8N+ Ka5 c5 Be7 h6 Bf5 c6 Na6 b6 Qg4 b7 Nc7 b8N Nb5 g6 Nf6 d6 Na3 c7 Be6 d7 Re8 d8N Bb4 Nd6 Bc4 c8N Qd7 Bg2 f1R Na6 Re1+ Ne2 Re7 Bd2 Nd5+ Kf2 e3+ Kg3 e4 Kh4 Re6 Kg5 Re5+ Nf5 Nc3 Ne7 Rc8 Kf6 Bc5 Kg7 f6 Ne6 Bb4 Ng1 e2 Nac5 e3 Ne4 Bc5 Neg3 Ba7 Bc1 Re4 Ned4 Bc5 Nd2 Bb4 Rb1 a1R Rb3 Re5 Nb1 Na2 Bd5 Bd2 Rb8 Rd1 Bb2 e1B N1e2 Bf2 Rg1 Re1 Bh1 Re4 Rf1 Bg1 Bc1 Bh2 Rg1 Rc6 Re8 Rc8 Kh8 Re5 Nec3 Re2 Rd1 Re1 Bb2 e2 Bc1 Rf1 Bb2 e1Q Nce2 Rf3 Bc1 Rfe3 Bb2 R3e4 Bc1 Bb4 Bd2 Qf2 Be1 Bd2 Nf1 Qe3 Bh4 Ra8 N1g3 Ra7 Nbc3 Rc1 Nb1 Bb3 Ng1 Rc8 N1e2 Bc4
N3N3/1r1p1NqR/3P1B1B/3K2r1/kB6/Pr2RNB1/P1r2pq1/2n4n w - - 0 1 legal: proof: f4 c5 c4 e5 fxe5 a5 e6 b5 Qb3 a4 cxb5 a3 Qb4 cxb4 bxa3 Ba6 Nf3 Bb7 Ng1 Bc8 g4 f5 e7 f4 exf8B Nc6 Be7 Qc7 Bd8 Nb8 Nf3 h5 Ng1 Bb7 Bg2 Be4 Bf3 Bf5 gxf5 Rh7 Bg4 hxg4 Kf1 Rh5 Ke1 Rh8 Kf2 g5 e4 f3 Ke3 b3 Kd4 b2 h4 f2 f6 g3 f7+ Kf8 h5 g2 b6 g4 b7 g3 e5 Ra7 e6 Na6 b8B Qb7 h6 Nb4 h7 Ne7 Nc3 b1R Na4 Rb3 Nf3 g1Q Nb6 g2 Na8 Nd3 Bg3 Nf5+ Kc4 Rg8 h8N Rg5 Bf6 Qe4+ Bd4 Ke7 f8B+ Kd8 Rh7 Rab7 Bb4 Qe5 Bdc3 Qg7 Kd5 Qh1 B3b2 g1R e7+ Kc8 e8N Qg2 Bf6 Re1 Nf7 Re2 Bcb2 Nc1 d4 Rc2 Rb1 Rb6 B2c3 Kb7 Bd2 Ka6 Be3 Kb5 Bed2 Rh5 Bh6 Rg5 Ra1 Ka4 Rb1 Ne2 Re1 Nc1 Re3 Rb8 Ke4 Rb7 d5 Nh4 d6 Nf5 Bge5 Ng3+ Kd5 Rg6 Bef4 Nh1 Bg3 Rg5+
rR1q3B/rR1nPB1R/2Bb1B2/p3qN2/N1n2p1P/b7/4KP1k/bR6 w - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 h5 a4 c5 axb5 Na6 bxc5 Nb8 g4 hxg4 c4 d5 b6 Be6 Qc2 Bd7 Qa4 Bb5 cxb5 Rh3 Qc2 Rh8 Qc4 dxc4 e4 Ke7 h4 Ke6 c6 a5 b7 f5 b6 g5 c7 g3 c8R g4 Bg2 c3 Nf3 c2 Nc3 Nc6 b8R Ra7 b7 Ba3 Bb2 c1B Na4 Nf6 Rc7 Nd7 Rb1 Re8 Ba1 Bcb2 Ke2 Rf8 Rh3 Bd4 Bh1 g2 Bc3 g1Q Bg2 Nc5 Rh7 g3 Bh1 g2 Rg3 Ne7 Rgg7 Qh2 Rf7 g1B Bg2 Kd7 e6+ Kd6 e5+ Kd5 Bh1 Ng6 e7 Ke4 e8B Nd7 e6 Nge5 Ba1 Bdb2 Nd4+ Kf4 Bd5 Nc4 Bc6 Kg4 Rfg7+ Kh3 Bf7 Bc3 Bb2 Qd6 Ba1 Bh2 Bb2 Be5 Ba1 f4 Nf5 Be1 Bd4 Q6c7 Ba1 Bed6 Bf6 Qb6 e7 Qb4 Rg3+ Kh2 Rgb3 Qc5 Ra8 Qc8 Bh8 Bc3 b8B Bde5 Rb7 Ba1 Bc7 Qd5 Bb6 Bed6 Bbd4 Qb5 Bdf6 Qc7 Rc8 Qcb6 Rcc7 Rfa8 Rc8 Qd8 Rcb8 Qe5+
2q1kr1n/2R2r1N/1Knn1q1B/b1B2P1R/4bBr1/rBNPP3/4RR2/1b6 w - - 0 1 legal: proof: g4 h5 gxh5 b5 a4 d5 axb5 d4 Ra3 d3 cxd3 Ba6 Ra1 Bc8 Na3 f5 Nb1 e5 Qc2 e4 Kd1 e3 Qb3 exd2 Kc2 Nc6 Kc3 Ba6 Qd1 Bc8 Kc2 Nb8 e3 f4 Qe1 f3 Qe2 fxe2 Kb3 e1Q Kc4 d1B h4 g5 b4 c5 f4 a5 f5 a4 h6 g4 h7 a3 b6 a2 Kb5 c4 b7 c3 h5 g3 h6 c2 Nh3 g2 Be2 g1R Ng5 Qg3 Rh5 Qf6 Nc3 Bd6 Ba3 c1R Kb6 Nc6 b8R Bc2 b5 Nge7 Bc5 Bb1 Rb7 Ng6 Rc7 Bb7 Bd1 Ra3 Bb3 Rf8 h8R Rc2 Rg8 Nh8 h7 Qf3 Rg6 Rg4 Rgh6 Qf4 Rh2 Q4d4 Re2 Qc4 Rh5 Qce6 Rf2 Qc8 Re2 Ne7 Rf2 Be4 Re2 Nc6 Rf2 Nf7 h8B Rc1 Bg7 Nh8 Bh6 Rh1 Bd4 Bb4 Nh7 Rhg1 Re2 Rg7 Rf2 Rgf7 Bc5 Rg4 Re2 Bc2 Rf1 a1N Rff2 Bb1 Bd6 Nc2 Bc5 Qce6 Kb7 N2d4 b6 Ba5 Ka6 Nb5 b7 Bb4+ Kb6 Qc8 b8B Nd6 Ra7 Nb7 Bbf4 Nd6 Rc7 Ba5#
RN4R1/6NN/4r1P1/P1nnB1b1/rr1rR1p1/1B1r2P1/K1Nb1q1k/2R4r w - - 0 1 illegal: No possible last move
1R2B3/2q3b1/1RN4P/n1NNrnk1/Rrb1P1Nn/5R2/1PK4p/2rBrn2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 fxe5 Be7 c4 Ba3 cxd5 Bf8 g4 h6 d3 Qf6 Bf4 Qd8 Bg3 Qf6 h5 Qe7 Bh4 Qd7 Qd2 gxh4 g5 Qe7 g6 Qd8 Qg5 hxg5 Kd2 Ke7 e4 a5 b6 f5 d4 c5 b7 a4 h6 a3 e6 Kf6 d6 a2 g7 g4 d5 f4 d7 g3 e7 f3 e8R h3 d6 h2 Kc3 f2 Nh3 c4 Kd2 c3+ Kc2 g2 Be2 f1N Bd1 g1N Nf2 Nc6 b8R Nge7 g8B Ba6 Ng4+ Kg5 Bf7 Bg7 Rb6 Qc7 d8N Bc4 d7 Ra4 Nb7 Nf3 d8N Na5 Nc6 Nf5 Rb8 Rb4 Nc5 N3h4 Be8 Rf8 Rg1 Rf6 Rg3 Re6 Rf3 Re5 Kc1 c2 Nc3 N1g3 Kd2 c1R Nd5 Bb5 Ba4 Bc4 Bb3 Re1 Bd1 Nf1+ Kc2 Nd2 Rb1 a1R Rc1 Nf1 Rb1 Ra3 Ra1 Rab3 Ra4 Ra3 Kc1 Ra1+ Kc2 Rc1+
2Rn2B1/bqR1B2N/1P5b/1Npr3n/k4N2/n1qn4/K1RPP1n1/N1Rb4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Kf2 h5 Ke1 a5 Qc2 Ra6 Qf5 Rf6 Qg5 Rf5 gxf5 Rh6 Qg3 Rh8 Qg4 hxg4 Kd1 Kd7 Kc2 g5 Kb3 f2 h4 g3 f6 g4 f7 g2 h5 g3 b6 f3 d6 Kc6 b7 Kb5 d7 a4+ Ka2 a3 b4 Nf6 h6 Nh5 h7 Qf6 d8N Bf5 Kb3 a2 Rh2 Bh6 f8N Nc6 Nde6 Nd8 Nh3 g1N Nc5 g2 Nf4 Nh3 Ba3 g1B Bg2 f1Q b8R+ Qb6 Rb7 f2 Bd5 Qc1 Bg8 f1N Rh1 Ne3 Ra7 c6 Rc7 Nf2 Rh4 Qb7 Nc3+ Kb6 b5 Ka5 Rb1 a1N+ Ka2 Bc2 Rg4 Bd1 Nb3+ Kb6 Rg6 Ng2 Be7 Nc2 Na1 Ka5 Rg5 Nd3 Rc5 Na3 Rc4 c5 b6 Bh2 Nb5 Qc3 Rc1 Bg3 Be6 Rg8 h8R Rg5 Nh7 Rd5 Bg8 Bh2 Rb4 Bg3 Rb2 Ka4 Rbc2 Bh4 Bf7 Bf6 Re8 Be5 Bg8 Bd6 Rd7 Bb8 Rc7 Ba7 Rf8 Nc6 Rfc8 Nd8
1B3nB1/2q2NK1/nRN1rnr1/2R2rp1/8/2PP1NPB/3B2p1/kqN1bb2 w - - 0 1 legal: proof: e4 h5 a4 f5 exf5 b5 axb5 h4 g3 h3 Qg4 Rh5 Qf3 Rh8 c3 d5 Ra2 d4 Qg2 hxg2 b4 c5 bxc5 d3 Rc2 dxc2 Ke2 Kf7 Ke3 Kf6 Kf4 a5 h4 e6 c6 a4 b6 a3 c7 a2 h5 a1N h6 g6 b7 Ne7 h7 Na6 b8N Nb3 Nc6 Ng8 Ne2 Nbc5 Rh6 Nd7 f3 Bb7 c8B e5+ Ke4 Rb8 f4 Qc7 Rh5 Kf7 f6 Ke6 f7 Bc5 f8R Bf2 f5+ Kd6 f6 Kc5 f7 Kc4 Rh6 g5 Kf5 Kb3 Kg6 Ka2 Kg7 e4 Rd8 e3 f8B Be1 Bd6 Ngf6 Rg6 Rf8 h8N Ra8 Nf7 Ka1 Re8 Rh8 Re5 Nf8 Bh3 Rh6 Rc5 Rd8 Be5 Rd5 Bf4 Rf5 Be5 Qd7 Bb8 Qe7 d3 Qc7 Bd2 Ba8 Nc1 e2 Bf4 Bb7 Nd2 Ba8 Nf3 Bb7 Na2 c1Q Bd2 Qb1 Nc1 Bf2 Nb4 e1R Nc6 Re6 Be2 Be1 Bd1 Bc8 Bb3 Bd7 Nb4 Ba4 Bc4 Bd1 Nc6 Be2 Bb3 Bf1 Ba2 Ng8 Nce5 Re8 Rb6 Ree6 Nc6 Nf6 Bd5 Re2 Bc4 Qd8 Nd6 Ree5 Bf7 Re6 Bg8 Qc7+ Nf7 Rg6+
6N1/k1n1pr2/1b1RRbnB/3R2PR/2K2nP1/1pBPN3/br6/1q1NN2n w - - 0 1 legal: proof: e4 d5 b4 a5 c4 g5 h4 f5 exf5 Bh6 hxg5 Bf8 Qa4+ c6 Qb5 cxb5 bxa5 b4 c5 Nc6 Bd3 Nb8 Bc4 dxc4 Ke2 Kd7 f4 Kc6 g4 h5 a4 b5 a6 h4 a5 h3 f6 b3 f5 c3 a7 Kb7 a6+ Kc7 c6 Kb6 c7 c2 f7 h2 f6 b4 Nc3 b2 Nf3 b1N Ra5 b3 Nd1 Rh6 Ne1 Rh7 Bb2 c1B Rd5 Na3 Kd3 Qd6 Bc3 Nb5 Kc4 Bg7 f8B Nd7 f7 Bf6 Bh6 Qg3 f8N Rf7 Nh7 Qg1 Bb4 Bb7 c8R Nc7 Rd8 Nf8 Bc3 Ng6 R8d6+ Bc6 Re6 Rc8 a8N+ Ka7 Rdd6 Be4 Nb6 Bb1 d3 Be3 Nd5 Bb6 N5e3 Ba2 Rd5 Be5 Red6 Nf6 Re6 Nh5 Nf6 Bed4 Ng8 Bf6 Rdd6 Nhf4 Rd5 Ka8 a7 Kb7 a8R Rcf8 Rad8 Ka7 N1c2 Qe1 R8d6 Qf1 Nf2 Qb1 Ne1 Ra8 Nfd1 Raf8 Rf1 h1N Rg1 Rh7 Rg2 Rff7 Rh2 Rh8 Bf8 Rh3 Bh6 Rf3 Rh4 Rf2 Rh5 Rb2
2b1q3/Br6/kn1R1N1b/B1R4r/Rp3N1P/N1K5/1PPp2Np/1rnrR3 w - - 0 1 legal: proof: d4 b5 h4 g5 a4 c5 dxc5 f5 e4 h5 exf5 g4 a5 Qb6 axb6 Bh6 g3 Bf8 Bh3 gxh3 g4 Bb7 g5 Bc8 Qg4 hxg4 Kd2 Kd8 f4 e5 c6 d5 b7 Kc7 g6 Kb6 f6 a5 g7 a4 f5 d4 f7 h2 c7 a3 f6 e4 Ne2 g3 Rf1 e3+ Kd3 a2 Rh1 g2 Re1 g1R Na3 Na6 b8B Ra7 Bd2 Rh5 Bc3 Rb7 Nf4 e2 Ng2 Ne7 g8N Bh6 f8R Nd5 f7 Rf1 Rad1 a1R Nf6 Rb1 Re8 Rg1 f8N Rf1 Re3 Nc5+ Kd2 d3 Ba5+ Ka6 Ng6 Rh1 Ba7 Nb6 N6f4 Nb3+ Kc3 Nc1 Re4 Rg1 Ra4 Rh1 Rf1 e1Q+ Rd2 Qe8 Re1 Bg4 c8R Rg1 Rd8 Bc8 Rd6 Rh1 Rde2 d2 Re5 Rg1 Rc5 Rf1 Ree6 Rd1 Re1 b4+
1N1B1q1k/2B1r1r1/1Rp2N1q/4BBn1/2N3p1/P1K1npPn/3bP3/1qN2R2 w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 g5 cxd5 e5 fxe5 Bf5 h5 Bg6 hxg6 Ra5 Na3 Ra7 Nb1 Ra8 d4 b5 Kd2 f5 g7 Kf7 g3 h5 d6 f4 d7 f3 d5 b3 d6 h4 a3 b2 Kc2 h3 Bg2 b4 Kd3 c6 Kd4 b3 Qd2 h2 Kc3 Ra7 Bh3 Ne7 g8N Kg7 e6 Nf5 e7 Ne3 Nf6 Rh7 e8N+ Kh8 Bf5 g4 Nh3 Re7 Nc7 Na6 Rf1 h1N Nf4 Nc5 Nd3 Ne6 Na6 Nf2 Nb8 Ng5 Ra2 Qe8 d8B Nfh3 d7 Bg7 Bc7 Qf8 d8B Rb7 Qd1 Bh6 Nd2 b1Q Ra1 b2 Nc4 Qa2 Qc2 b1Q Bb2 Rg7 Qd1 Qc1+ Qc2 Qab1 Ra2 Re7 Ba1 Bg7 Rb2 Bh6 Rb6 Rg7 Bf4 Rbe7 Bfc7 Ng2 Bd6 Nh7 B6c7 Bd2+ Kd4 Be1 Bb2 Qg5 Qd2 Ne3 Nc1 Qh6 Bc3 N7g5 Ba1 Qb4 Kd3 Qb5 Bae5 Qb1+ Kc3 Bxd2+
2N2Bn1/P1k3B1/P1p3Pq/1B2K3/rn3q1p/1Nr1N2R/1pqNBq2/2bR4 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 g5 b4 e5 bxa5 e4 f4 exf3 Qa4+ Nc6 Qf4 gxf4 h3 Bf5 g5 Bg4 hxg4 Nb8 Kf2 Kd7 a4 b5 d4 f5 e4 h5 a6 h4 a5 b4 g6 b3 g7 b2 d6 Rh6 a7 Qc8 g5 Rf6 g6 Nc6 a6 Kd8 d5 Nce7 d7 Rb6 e5 Rf6 e6 Qb8 Nc3 Nc8 Be2 Be7 Nd1 Nb6 Rh3 Qc8 Ne3 Rf8 Bd2 Bg5 Bc3 Rb8 Rf1 c6 e7+ Kc7 d8N Qe6 e8B Qe4 Rd1 Qc2 Bf7 Re8 Bb4 Re4 Bf8 Ra4 Nb7 Bh6 Nc5 Rd8 Kf1 f2 Kg2 Rd6 Nb3 f1Q+ Kh2 Qe1 Nf3 Qed2 Kg2 Qdc1 Nfd2 f3+ Kf2 f4 Be6 Rd7 Bf5 Re7 Bfd3 Ree4 Bb5 Rec4 Nd4 Rc3 d6+ Kc8 d7+ Kc7 N4b3 Nd5 Nef1 Nb4 d8B+ Kc8 Bg5 Kc7 Bf6 Bg5 Ne3 Bh6 Kg1 f2+ Kg2 Bg5 Kf3 f1Q+ Kg4 f3 Bd4 f2 Kf3 Rd3 Ke4 Rc3+ Ke5 Qg1 Rf3 f1Q Rh3 Nf6 g8N Qgf2 Ne7 Ng8 Nc8 Qf4+ Ke6 Q1f2 Bdg7 Bd8 Rg1 Qh6 Ke5 Bg5 Ne4 Q1d2 Rb1 Qdc1 Ned2 Qcf1 Rd1 Qf4+ Ke6 Q1f2 Nb1 Qg4+ Ke5 Qc4 Ng2 Bd2 Ne3 Bc1 N1d2 Qcf4+
3N2qR/1qB1N2n/1n1rr2n/Pbb3K1/R3R1pn/r5P1/N3P2k/1bNR1B2 w - - 0 1 illegal: No possible last move
8/P1RP1B2/2p2n1b/K1nn1k1r/r1R1Nr1r/B1P2N1r/RRN2nb1/1N5q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 exd5 g6 f5 Bd7 fxg6 Bf5 g5 Bc8 Qg4 hxg4 a4 Kd7 d4 f5 Kd2 b5 h4 e5 g7 e4 d6 Ke6 h5 c6 h6 e3+ Kd3 f4 g6 e2 h7 e1R a5 b3 Kc3 b2 Kb4 g3 d5+ Kf5 a6 f3 a7 f2 Nc3 b1N Ba3 g2 Ra2 Re3 Nf3 g1N Rh4 Nf6 g8R Nbd7 g7 Nh3 Rc4 Nc5 d7 Qc7 d8N Qh2 d6 Qh1 Ka5 b4 Bg2 f1R Ne6 b3 d7 Ba6 Rb2 Nf2 Ra2 b2 Ned4+ Kg6 Bh3 Rae8 Bg4 R8e4 Be6 Rh4 Bd5 Re5 Be6 Reh5 Bd5 Bd6 Rc8 Bf8 g8N Bh6 Rc7 Rh3 Ne1 Bb5 Ndf3 Kf5 Bf7 Ba6 Ne4 Nc3 Ned2 Ncd5 c3 b1R Nc2 Rb4 Nb1 Re1 Rb2 Re4 Ra2 Rf4 Rb2 N6g4 Nf6 R3h4 Ne4 Ngf6 Rd4 Bd3 Rc4 Bf1 Ra2 Bg2 Rb2 Rg8 h8R Rgg4 Rb8 Rg3 Ra2 Rgh3 Rd4 Rc4 Rbb2 Rb4 Rc4 Ra4+
Bn2nq2/1NB2Rqn/kn2p2R/1bPn2P1/1pN3r1/3RP2r/5b2/KRBB4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 dxc5 g6 f5 Bh6 Qd4 Bg7 fxg6 Bh6 g5 Bf8 Qg4 hxg4 Kd2 d5 c4 Kd7 Kc2 Kc6 Kb2 f5 a4 b5 h4 Kb7 c6+ Ka6 a5 f4 h5 d4 h6 g3 c7 d3 h7 g2 g7 f3 Ra3 d2 Rh3 d1N+ Ka1 b3 Bf4 e6 Bh2 f2 Nd2 Ne3 Rh6 Bc5 Ngf3 g1Q Nh4 Nf6 g8R Ne8 Nf5 Ng4 Rf8 Ngf6 Rf7 Bd7 c8R b4 Bc7 Bb5 Nd6 b2+ Ka2 b1N Ka1 Qh1 Rd3 Nc3 Nb7 Qhd5 Bh3 f1N Bg4 Bf2 e3 Q5d7 Bd1 Ncd5 c5 Q8e7 Rd8 Qf8 Nc4 Nd2 Rb3 Qde7 Rb1 Qg7 Rd7 Rf8 h8B Nh7+ Nb2 Nc4 Rd6+ Ka7 a6 Ncb6 Rd7 Nf4 Rd3 Nfd5 Rff6 Rf7 Nc4 Qgf8 Rf3 Rf4 Bb2 Rg4 Bc1 Qeg7+ Rb2 Nc6 Rf7 Rd8 Nca5 Nb8 Nc4 Ndf6 Rb1 Rdd4 Rh3 Nfd5 Rh4 Rg3 Rh6 Rh3 Nbd6 Ka8 a7 Rg4+ Bb2 Qgg8 Bc1 Qg6 Nc8 Kb7 a8B+ Ka6 N8d6 Qgg8 Nb7 Qgg7+
2n4r/1K1pqbRR/bR1qB3/p1B1b1q1/PN3rq1/2NP4/2nN1R1P/3N3k w - - 1 2 legal: proof: f4 c5 g4 h5 b4 f5 bxc5 g6 e4 g5 exf5 gxf4 g5 Rh6 Qe2 Rh8 Qg4 hxg4 Kf2 Kf7 c4 a5 a4 e5 f6 Kg6 c6 Kh5 c7 Kh4 g6 b5 c5 f3 Ke3 f2 g7 e4 Kd4 b4 f7 g3 d3 e3 c6 e2 Ra2 e1Q Ba3 g2 Nf3+ Kh3 Nc3 b3 Nd2 b2 Nd1 b1Q Bc5 Bd6 f8R Qb7 Rf7 Ne7 g8R Qb6 Rgg7 Ba6 c8N Qbc7 Nb6 Nc8 Rg1 Qg5 Nd5 Qee7 Nb4 Be5+ Kd5 Qb6 c7 Nc6 Rg6 Rh4 Rh7 Nd4 Rgh6 Qb8 Rb6 Nc2 Be2 f1B Bh5 Qgf6 Bf7 Be2 Be6+ Qf5 Rb2 Bh5 Ra2 Qg4 Rb2 Na7 c8N Bf7 Nd6 Nc8 Nb5 Qc7 Nbc3 Qb8 Re1 g1Q Re3+ Kg2 Rg3+ Kh1 Rg2 Qf5 Rgg7 Rf4 Ra2 Qfg5 Rb2 Nd4 Rc2 Q1g4 Ra2 Bb7+ Kc4 Nc2+ Kb5 Qbd6 Rb2 Rb8 Ra2 Bd5 Ka6 Bb3 Rb2 Ra8+ Kb7 Bc4 Ra2 Na7 Nde4 Rh8 Nd2 Nc8 Nde4 Nd4 Rf2 Nc2 Nd2 Ba6+
q1NR4/pbR1RKBB/6P1/N1b2N2/1Pqpn3/Pb3kN1/1R3rnq/3rb3 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 e5 dxe5 g6 f5 Ba6 Qd4 Bb7 fxg6 Ba6 g5 Bc8 Qg4 hxg4 g7 Ke7 Kd2 Ke6 Kc3 Kd5 b4 Ke4 h4 d5 e6 f5 h5 c5 a3 g3 h6 g2 e7 f4 e8R+ Ne7 g8N f3 h7 f2 Ra2 Na6 Nh6 Bb7 Rb2 Qb8 Rc8 Nf5 Rc7 Nh4 Nd2+ Kf4 e4 Be7 Be2 f1B e5 Qe8 Ngf3 g1Q e6 Ng2 Ne5 Qg8 Bf3 Rf8 Be4 Bd3 Rh3 Bc2 Nc6 Bb3 Na5 Rf7 Bf5 Qa8 Re3 Rhf8 h8N Qh2 Ne4 Bd6 e7 Re8 Kd2 c3+ Kd3 c2 Bh7 c4+ Kd4 c3 g6 Nc5 Ng3 Rf6 Bd2 c1Q N8f7 c2 Bc3 Qf1 Re6 c1B Re1 Rf8 e8R Bd2 R1e7 Ne4 Rd8 Qc1 Re5 Be7 Nd6 Rf5 Nc8 Bc5+ Kd3 R5f6 Ree7 Rf5 Bg7 R5f6 Nf7 Kg4 Nfd6 Rf1 Bh6 R8f2 Bg7 Kf3 Ndf5 Bd6 Kd4 Bc5+ Ke5 Rd1 Ke6 Qc4 Kf7 Bc3 Bg8 Be1 Bh7 d4+
8/k1n4N/3Bp1np/N2nqRnP/r4q1B/1RqR1Br1/1K2P2P/R1Bb2n1 w - - 0 1 illegal: No possible last move, all moves rejected
BNR5/7P/1q3pNb/r1B2qn1/Kp4b1/1p1N1n2/1P1rnPkB/1R1nBN2 w - - 1 2 legal: proof: d4 a5 g4 d5 c3 h5 gxh5 e6 Qb3 e5 Qb4 axb4 c4 exd4 cxd5 Ra5 Be3 Ra4 Bc1 Ra8 Kd1 Kd7 Kc2 Kd6 Kb3 Ke5 a4 Ke4 h4 c5 a5 g5 a6 b5 d6 g4 d7 d3 h6 d2 h5 d1N a7 g3 Bg2+ Kd4 e4 Kd3 e5 Ne3 e6 Qb6 d8B Nd7 e7 Ngf6 e8N Nh7 Bd2 Ne5 Ne2 Bg4 Rc1 Nd1 Bc7 Rd8 a8N f6 Be1 Rg8 Nd6 Rg5 Nf7 Rf5 Bd5 g2 Nh8 g1N Ng6 Ng5 h7 Nef3 h8B Rd7 h6 c4+ Ka2 c3 Kb3 c2 h7 Bh6 Bh2 Re5 Nc7 Rf5 Bg7 Rd6 Ka2 b3+ Ka3 b4+ Ka4 Rc6 Nd2 Rd6 Ba8 Rb5 Rab1 Rd7 Na6 Rd6 Nc3 Rdd5 Na2 Ke2 Bf8 Rd7 Ne4 Kf1 Ng3+ Kg2 Nf1 Ne2 Nb8 Rdd5 Nc3 Rd8 Ne4 Rd2 Nc5 Ne3 Rd1 c1Q Be7 Qc3 Rdc1 Qe5 Nd3 Qf5 Rc8 Nd1 Bc5 Ra5+
1kN2nq1/1P2KppR/2p4p/R1PB1br1/b3BP2/bR2B3/1R2n3/rq1N3B w - - 1 2 illegal: No extended proof kernel
4q3/2bp1pN1/KBn1pq1P/2B2N2/B1rB1P2/RP1b3p/N1R1q2r/4N1nk w - - 0 1 illegal: No proof kernel
Nn1R1q1B/p6B/2Kb1N1N/3NppR1/P1b2p1q/R2n4/PRPb1rr1/6k1 w - - 0 1 illegal: No proof kernel
2bBr3/1P1BNpp1/pK2R3/R1B2q2/PR3PNR/qp1k2B1/2r2n1n/4nr2 w - - 0 1 illegal: No proof kernel
Qn2QbB1/2nR1P1r/2R1QNb1/R1r3rb/1Q1b3P/KP1b4/2k2qQ1/7n w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 g4 Bb7 f4 Ba6 f5 Bc8 Bf4 h6 Nd2 gxf4 Ndf3 h5 g5 Bg7 Ne5 Bf8 Ng4 hxg4 Kd2 Kf7 Kc1 a5 c4 d5 h4 e5 b6 e4 b7 e3 c6 f3 c5 a4 c7 f2 b3 e2 Kb2 e1N c6 a3+ Ka2 g3 Ba6 f1B Rh2 d4 Bb5 g2 Nh3 g1R Qg4 d3 Nf4 d2 Nd5 d1B Qb4 Ra5 Bc4 Nd3 Rd2 Nf2 Rd3 Be6 c8R Rc5 c7 Bh5 Rd4 Ne7 g6+ Kg8 g7 Kf7 Rd2 Bd3 Rdd1 Nh1 g8Q+ Ke8 f7+ Kd7 f6 Kc6 Qg5 Bef5 Qg2 Bfg6 Rd2 Rh7 Rdd1 Bg7 f8Q Qd7 Rd2 Qf5 Qe8+ Kd6 Rdd1 Ke5 Rd2 Kd4 Rdd1 Nd7 b8Q Bf8 Qa8 Qf3 f7 Qf1 Nf6 Nb8 Bd5+ Ke3 Be4 Qf2+ Rd2 Bde2 Rd7 Nd5 Qf1 Rg5 Qg2 Bhf3 Bf5+ Be4 Qe6 Kd3 Qe8 Kc2 Qe6 Rh6 Qe8 Bgh5 Bh7 B2d3 Bg8 Bh7 Rcd8 Bdg6 c8Q Nc7 Qca6 Bd3 Rc8 B7g6 Qd6 Rh7 Qde6 Nb5 Rc6 Nc7 Rf1 Qe2 Rf5 Qf2 Ka1 a2 Rfd5 Rc3 Ra5 Rcc5 Qa3 Kd2 Kb2 a1B+ Ka2 Bc3 Qb4 Kc2 Ka3 Bd4
krr3bn/N2Q2B1/BnP5/2KPQ1r1/2qQ2P1/1Q2n1b1/3B3Q/2Rq1rr1 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 h4 Ba6 hxg5 Bb7 b6 Bc8 b4 d6 c4 Bb7 b5 Ba6 Ra4 Bc8 Rb4 cxb4 c5 d5 Na3 Ba6 Nc4 dxc4 Qb3 Bb7 Qd1 Bc8 Ke2 Kd7 Ke3 h5 Kd4 a5 g4 e5+ Kd5 c3 f4 h4 d4 c2 g6 b3 f6 b2 f5 b1R b7 Kc7+ Kc4 a4 c6 a3 g7 a2 f7 a1R f6 h3 Qe2 h2 Qd3 e4 Qa3 e3 Bd2 c1Q+ Qc3 e2 Nf3 Ne7 g8Q e1N Kc5 Nc2 Bc4 Bg7 f8B R1a5 f7 Be5 Bg7 Ne3 f8Q Bg3 Qf5 Ng6 Qfd3 Qc2 Rc1 h1R Qh7 Rg1 Qh2 Be6 Qa1 R5a6 Qb3 Qd7 b6+ Kd8 Qd3 Rh4 Re1 Bf7 Ba5 Rh5+ Qf5 Qe6 Bd2 Nh8 Rf1 Qee4 d5 Rg5 Nd4 Bg8 Nb5 Rb3 Qc3 Ra1 Na7 Qf3 Ba6 Nd7+ Kd4 Rc8 b8Q Rab1 b7 Rc1 Qbe5 Qe2 Rf4 Rcf1 b8Q Qed1 Qbb4 Rb2 Qbc5 Rb7 Qb3 Nb6 Qcb4 Qd3+ Kc5 Q3e2 Rc4 Qd3 Qef6+ Kc7 Rc1 Kb8 Qbd4 Ka8 Qd7 Rbb8 Qfe5 Qc4+
1k1b1R2/3rbQ2/1q2KQ2/3PNrBQ/2N1r1P1/q5nN/1bbQ1P2/3nQq2 w - - 0 1 legal: proof: h4 a5 a4 b5 Ra2 g5 hxg5 c5 Ra3 d5 Rh4 f5 Nh3 e5 Rd3 c4 Rdd4 c3 bxc3 f4 Ba3 f3 exf3 e4 Bd3 e3 Rb4 axb4 Ng1 b3 Bc1 b2 Be4 dxe4 Rh1 b4 Ke2 Kd7 d4 Kc7 g4 h5 c4 b3 f4 h4 f5 h3 g6 h2 d5 Qg5 a5 Bd6 c5 Nh6 c4 Rg8 f6 Nd7 g7 Kb8 c6 Bc7 a6 Ne5 f7 Nd3 f8Q Qe7 c5 Bd8 Nh3 Bf5 Nd2 b1R Qf6 b2 Nc4 Ra7 Ne5 Rf8 g8Q Rd7 Qe1 Bg6 Qd2 Nf5 Qgf7 Bh7 Re1 h1Q Qh5 Ra1 Qff7 b1Q c7+ Ka8 c8N Qb6 a7 Ra4 c6 Qa3 c7 Nb2 Qf6 Nd1 Nd6 Qg2 Rh1 Bg6 Ndc4 Ng3+ Ke1 e2 c8Q+ Qb8 Qc5 Qb6 Qce3 Kb7 a8Q+ Kc7 Qa2 Qf1+ Kd2 e1B+ Kc2 Ba5 Qe1 Bc3 Bg5 Bb2 Qac6+ Kb8 Qce6 e3+ Qef5 e2 Rh2 Bc3 Kd3 Rb4 Qad2 Bb2+ Qc3 Nh1 Ke4 Ng3+ Kf4 Ra4 Qcd2 Bh7 Q5e6 Bc2 Qef7 Be7 Qa5 Bd8 Qed2 e1B Qab4 Ne4 Kf5 Be7 Rh1 Bd8 Qbe7 Ng3+ Kf4 Bc1 Rg1 Rda7 Nd3 Qad6+ Qfe5 Qe2 Qe3 Rd7 Qf5 Bb4 Na5 Nb2 Re1 Nh1 Qd2 Ra1 Nc4 Qf1 Qeh7 Rf6 Q7f7 Ng3 Re2 Ra3 Re1 Re6 Q5f6 Nd1 Re2 Bb2 Re1 Nh1 Kf5 Rb3 Qee3 Qdc5 Re2 Qca5 Qe1 Qa3 Q3d2 Re3 Nf4 Rf3 Re8 Be7 Rf8 Rc3 Ke5 Ng3 Nh3 Rf4 Nd6 Rcc7+ Ke6 Rcc4 Ne5 Rb4 Qe8 Rbe4 Qef7 Qbb4 Nc4 Rf5 Q7g6 Qbb3 Qgf7 Qb6+
N1nKR2B/4B3/4r1QP/P2Pq1rq/1B1q4/3bBQ2/Bn2pbnk/n1Q5 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 a4 Bh6 g4 Bg7 Nc3 Bf8 Nce2 h6 Nf4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 d4 Kd6 h4 c5 f7 e5 f6 b5 a6 b4 a5 b3 g6 b2 a7 b1Q h5 g3+ Kf3 g2 h6 e4+ Kf2 f3 Ke3 c4 Kf4 e3 Kg5 e2 g7 c3 Qc2 f2 Rh3 Nc6 Re3 Nge7 g8Q Qa1 Nf3 g1Q+ Bg2 f1N Qgg6 Qe8 Ne5 Ba6 Nd7 Nc8 Nb6 Bd3 Re4 Be7 f8B Ne5 Bg7 Rg8 Be3 Nc4 Qc1 c2 Bh8 Nb2 Re5 Rb8 Na8 Rb6 Re4 Qb5 Re5 Bf8 Re8 Qh2 Be4 Qe5+ Bf5 Bg7 f7+ Bf6+ Kg4 Rg7 Be6 Bg5 Kh5 Bh4+ Kg4 Bf2 f8B+ Re7 Qd1 Qc5 Qc1 Rb5 Bg8+ Kd7 d6 Re6 Be7 Kc6 d7 Kd5 d8B Qa4 Qg5 Ke4 Bf7 Qcd5 Bb4 Qc5 Kh5 Kf3 Be7 Qcd5 Qf5+ Kg2 Kg5 Kh2 Bg8 Reb6 Be6 Qf3 Ba2 Re6 Nb6 Rc5 a8Q Qh3 Qf3 Rd5 Bed2 Ne3 Na8 Ng2 Be3 Rc5 Qe1 c1N d5 Rc3 Qd1 Nb3 Qd2 Na1 Qc1 Qb8 Qg6 Rcc6 Bbc5 Qd4 Bcd6+ Re5+ Kf6 Qh5 Kf7 Qc7 Bb4 Rg5 Kf8 Qg3 Kf7 Nd6+ Ke6 Nc8+ Kd7 Re6 Kd8 Qge5
3N2n1/p2b3P/kr1n2K1/1n2P3/b4Pqr/1N1RQn1Q/1Nq1QbB1/5Q1Q w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 g4 Ba6 gxh5 Bc8 b4 f6 d4 Bc5 Be3 Bf8 d6 f5 d5 f4 Bd4 exd4 e4 Na6 Ra3 Nb8 Re3 fxe3 Ke2 Kd7 Kd3 g5 h4 c5 f4 e2 b6 e1Q e5 g4 b5 g3 b7 g2 h6 Qb6 h7 Na6 b8Q Nh6 h5 Nc7 Na3 Ng8 h6 Qg3+ Ke4 d3 Kf5 d2 Qb7 c4 Qe2 d1B Rh3 c3 Nc4 c2 Nb2 c1N Nf3 g1N Nd2 Nf3 Nb3 Qc5 b6 Na2 Bg2 Ng5 Kg6 Qg4 Rd3 Nc3 Qa6 Bc2 b7 Ne8 b8Q Nb5 Qbb6 Rb8 Qc6+ Kd8 d7 Ned6 Qa8 Kc7 d8N Qc4 Qa1 Kb6 Qaf1 Ka6 Qe3 Ndf7 d6 Bd7 Qaf3 Rb6 Qf3e2 Bd1 Qh1 Qc2 Qhh3 Be6 d7 Bc5 Qh1 Nfd6 Qhf1 Nf6 Qh3 Bf2 Qhh1 Rf8 h8Q Ng8 h7 Rf7 Qg7 Rf5 Qgh6 Rf6+ Kg7 Bf5 Q6h3 Rh6 Qee3 Rh4 Qee2 Be6 Kg6 Nde4 Nf7 Ned6 d8Q Bc8 Qc7 Bd7 Nd8 Qb1 Qc1 Qa2 Na1 Ba4 Nb3 Qb1 Qcd2 Qc2 Qde3 Nf3+
2rQ2B1/b2b1P1Q/RB1KqbPP/1k4n1/1B1Q2pn/r1q2r2/1p1N1B2/3B4 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 a4 Bh6 g4 Bg7 Nc3 Bf8 Nce2 h6 Nf4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 d4 b5 h4 e5 g6 c5 a6 f3 Kg3 f2 h5 c4 d6 Kc6 d5+ Kb6 d7 e4 Kf4 c3 Ke5 b4 a5+ Kc5 f7 b3 f6 c2 d6 b2 h6 e3 a7 e2 a6 e1B Bc4 f1R Be3+ Kc6 Bf2 c1Q Nf3 Bg7 f8B Qc2 Nd2 Qc7 d8B Qb6 d7 Ne7 Bg8 Nf5 Bb4 Kb5 Rh3 Qc1 Ra3 Qc3+ Kd5 Qbe3 f7 Bf6 Bb6 Nc6 d8Q Nh4 Kd6 Bd7 Ra4 Rc8 a8Q Nd4 a7 Ndf3 Ra6 Ng5 Qb8 Qe4 a8B Qe2 Bf3 Qec4 Bg1 Bf2 Be2 B2d4 Be3 Rf3 Bf2 Rc7 Qg1 Ra7 Bd1 Qe2 Qf8 Ra8 Qbd8 Qe1 Qg7 Qee3 B6a5 Ba7 Bb6 Qe1 Bh7 Re8 Bg8 Rc8 Qh7 Re4 B4c5 Ra4 Bb4 Qe8 Qe1 Qe4 Qe3 Ra3 Qd4 Qe6#
4NBB1/qn3Q1b/1r1b1rP1/p4PQn/1B6/2bb1p1P/QK1b1k2/5BRB w - - 0 1 illegal: No possible last move, all moves rejected
RR4n1/1Q3Rp1/Qr2b1QP/5nQ1/1pr1P3/PN1Q1K2/3rpn2/2bqkB2 w - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 e5 b4 h5 bxa5 Ra7 gxh5 Ra6 d6 Ra8 d4 Qd7 e4 Qd8 Nc3 f5 d5 f4 Be3 fxe3 Nce2 Bf5 Nd4 exd4 Qd3 Bg4 Qd1 Bc8 Ke2 Kd7 f4 c5 h4 b5 h6 b4 a6 d3+ Kf3 d2 h5 c4 a7 e2 f5 c3 f6 c2 f7 c1R h7 Na6 h6 Nc7 Qa4+ Rc6 Qa6 Be7 f8Q d1N Qf6 Rc5 Qg6 Rb8 a8Q Rb6 Q8b7 Nf2 Rh4 Rc1 Rf4 Rc4 Rf5 Bg5 Rf8 Ne7 Rf7 Rf8 h8R Bc1 Kg2 Rg8 Nf3 Re8 Nd4 Rg8 Rf6 Nf5 Nb3 Re8 Kf3 Re5 Qb8 Ne8 Rf7+ Re7 Rhf8 Nf6 Rh8 Ng8 Qbb7+ Ke8 Qh7 Be6 Qg6 Qb8 d7+ Kd8 Qba8 Kc7 Q8b7+ Kd6 d8Q+ Ke5 d6 Rd7 Qdg5 Rd8 d7 Qd6 Bh3 Qd1 Bf1 Ra8 d8Q Ra7 Qba8 Rd7 Q8b7 Rd2 Qdd7 Ne7 Rb8 Ng8 Nc5 Rdc2 Qdb5 Kd4 Nb3+ Kc3 Q5d5 Rd2 Qdd7 Qe1 Qd4+ Kc2 Qd3+ Kd1 a3 Rc3 Ra2 Rc4 Rc2 Rd4 Rcc8 Rc4 Bg2 Qg1 Bf1 Ke1 Ra8 Qh2 Rcb8 Qd6 Qg3 Qd7 Q3g5 Qa4 Nc5 Qc2 Nb3 Qd1
6RR/2rp1R2/1p1PP2R/3q1QKp/1r3nRN/1q1p3B/P1k4r/Q1n1b1Q1 w - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 e5 g4 b6 b4 c6 bxa5 Ba3 Nc3 Bf8 Bf4 Bb7 f3 exf4 d5 c5 Nb5 Ba6 Nd4 cxd4 Kf2 Bd3 Ke1 Be4 fxe4 Bd6 e5 Bf8 Kd2 Ke7 e4 f5 c4 d3 c5 f3 Ke3 h6 Kf4 f2 d6+ Ke6 c6 Ra6 g6 Qc7 g7 Ne7 g8R Qd8 c7 Nbc6 c8Q Ra7 g5 Bg7 a6 Nd4 g6 Nb3 Nf3 Nc1 Nh4 Rc7 Bh3 f1Q+ Qf3 Qe1 a7 Qa5 a8R Qd5 Ra4 Qe8 Qf1 Qf7 Qf8 Bf6 g7 Ng6+ Kg3 Rh7 Qg1 Be7 Rh8 Nf4 g8R Bf6 Rb1 Qb3 Rb2 Bd8 Rf2 Qd5 Ng6 Bh4+ Kf3 Bg3 Nh4 Qb3 Rf1 Be1 Rc4 Qe8 Qfg7 Qa8 Rf2 Qd5 Q7g4 Kf7 e6+ Kf6 e7 Ke5 e8Q+ Re7 Rcc2 Kd4 Rce2 Rh7 Qe5+ Kc4 Qa1 Kb4 Rf1 Kc4 Rb2 Kc3 Rb1+ Kc2 Ke3 Rg7 e5 Rg6 Qf3 Rg2 e6 Rh2 Qe4 Nfe2 Kf3 f4 Kg4 f3 Qf5 f2 Kh5 Qa3 Rb4 Qab3 Kg6 Nf4+ Kf6 Nfe2 Rbg4 Nf4 R4g6 h5 Kg5 Qc5 Rgh6 Qa5 Qg2 Qc5 Rhg1 Qcd5 Qh1 Qe4 Rg4 Qed5 Rfg1 f1R Qg2+ Rf2 Rf1 Re2 Qg1 Re4 Qfe5 Ng2 Rf7 Rb4 Qf5 Nf4
1NQrrkq1/1B1Q4/Q1Pp2b1/p1Q2PNq/P2nR3/1p6/p1Q4K/1Nb4b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 exf5 b4 Ra3 bxa3 b3 Nf6 b4 Ng8 c4 Bg7 d4 Be5 b5 Bb7 d5 Bg7 Bd2 Bf8 Bb4 cxb4 c5 Nc6 dxc6 Bc8 f4 h5 Kf2 a5 Kg3 e5 c7 e4 b6 e3 f6 b3 g6 h4+ Kh2 h3 g4 e2 g7 e1Q f7+ Ke7 g5 a2 b7 Nf6 b8N Nh7 g8Q Qd2+ Bg2 Qd5 g6 Qf5 g7 Ra6 Bb7 Re6 c6 Qh5 Nf3 Ng5 Re1 d6 f5 Bd7 c8Q Be8 Qh7 Re5 g8Q Ne6 Qg2 Nd4 Qdc2 Bh6 Ng5 Kf8 Re4 Re7 Qc5 Re6 Nf3 Bc1 Qgc2 Qdg5 Qd7 Qg8 Ng5 Re7 Qc8 Rd7 Qg6 Rd8 Qge6 Rh6 Qec4 Re6 Qd7 Re7 Kg3 h2 Qa6 Kg7 Kg2 h1B+ Kg1 Kh8 f8Q Bg6 Qfe8 Kg7 Qc8 Re5 Qee6 Kf8 Qed7 Qg4+ Kh2 Ree8 Re3 Qd1 Re4 Qh5+
q2NrB2/2p1Q1RK/p1Q3Q1/2r1rp2/P2n4/kPP3Np/3bNn1q/3b1NN1 w - - 0 1 legal: proof: f4 e5 fxe5 g5 a4 d5 h4 b5 hxg5 b4 Ra3 bxa3 e3 d4 c3 d3 Be2 Bd6 Bg4 Bc5 Be6 Bb4 Bb3 Bf8 Bc2 dxc2 Kf2 Ke7 Kf3 f5 Kf4 h5 g4 a6 d4 a2 d5 a1Q d6+ Kd7 e4 Kc6 g6 Kc5 e6 h4 b3 h3 e7 Rh7 Kg5 Nd7 e5 Nb6 g7 Nh6 Kg6 Nc4 e8N Bb7 g8Q Bc6 e6 Bb7 d7 Bf3 e7 Qb2 g5 Na5 Ng7 Bg4 e8Q Nc6 Nh5 Re7 Qe1 Re5 Ng3 Nd4 Nd2 Bd1 Kh7 Ng4 g6 Nf2 Ndf1 Bh6 g7 Bd2 N3e2 Rb8 Qge6 Rb5 g8N Qa8 Q6g6 Kd5 d8N Ke4 Nf6+ Kd3 Ne4 Rbc5 Qec6 Qa2 Bb2 c1R N4g3 Kc2 Ba3 Rb1 Bb4 Kb2 Rh2 Rc1 Rg2 Ra1 Nc1 Re8 Qe7 Rb1 Nce2 Ra1 Ba5 Ka3 Bb6 Rb1 Ba5 Qb2 Bb4+ Ka2 Nh1 Bg5 Qf8 Ne4 Qgf6 Ra5 Nf4 Bc2 Ne3 Re1 Nf1 Bd1 Qg8 Qf2 Bf8 Rc5 Qe7 Ka3 Qgg7 Re3 Nfe2 Bh6 Rg4 Qh2 Nhg3 Nf2 Qgf6 Re5 Rg7 Bg5 Qg6 Bd2
1Rrqq1R1/1NQ1RPqR/4bn1r/Kq3P2/n1P3kp/1B1R2b1/2q4R/R7 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 dxc5 b4 h5 b3 axb3 Qc7 b4 Qb6 b5 Qd8 g4 h6 Bf4 Nf6 Bg3 Ng8 Bh4 Qb6 Nc3 Qd8 Ne4 gxh4 g5 Kf7 g6+ Ke8 Ng5 hxg5 Kd2 d5 Kc3 Kd7 Kb4 e5 f4 e4 h6 d4 h7 g4 g7 e3 b6 a6 b7 e2 f6 Ke6 f7 Kf5 Nf3 e1Q+ Nd2 g3 Rh2 d3 Qc1 Qf6 Ka5 g2 b4 g1Q b5 Qd8+ b6 Bd6 c6 Kg4 c7 Qee8 f5 Be6 c8R Nd7 b8R Nc5 Rb7 Nf6 Nb3 d2 Re7 d1Q Bc4 Na4 Nc5 Bg3 Bb3 Qgf1 Nb7 Q1d2+ c3 Qc2 Rcc7 Rb8 Rcd7 Rc8 Rd3 Qfe2 Qh1 Qf1 Qc6 Qfb1 c4 Qbb2 Kb4 a5+ Kb5 Nc3+ Ka6 a4 Qc7 a3 Ka5 a2 g8R+ Kh5 Nc5 Na4 b7 Qe5 b8R Qed5 Rad1 a1Q Re1 Q5d7 Nb7 Qad4 Rf1 Qg4 Rfd1 Qg7 Ra1 Kg4 Rf8 Rg8 h8R Qc6 Rh6 Rh8 Rh5 Rh6 Rg8 Rg6 Rhh8 Rh6 Rh7 Qb5+
b2B3B/r1R1n3/1kBB3b/4P2r/r3PB2/1P2KN1r/B1Q2p1n/b2Bq1q1 w - - 0 1 illegal: No proof kernel
N2Qb3/4pr2/2N1k3/1p2q1PP/1NN1n1nR/KpnN4/P2r1bNN/1rB5 w - - 0 1 legal: proof: e4 a5 f4 d5 exd5 g5 fxg5 c5 b4 Bh3 bxa5 Bc8 g4 h5 g6 Qd7 g5 Kd8 Na3 Ke8 Bh3 Qc7 Rb1 Qd8 Bg4 hxg4 Rb4 cxb4 h4 Kd7 d4 b5 Kd2 f5 c4 f4 Kc2 b3+ Kb2 f3 g7 g3 h5 f2 d6 f1N c5 g2 d5 Nd2 a6 Rh6 c6+ Ke8 c7 Kf7 a7 Ne4 d7 Nd2 d6 Qe8 Nc4 Bb7 c8N Bf3 N8b6 Ke6 Rh4 Ne4 Na4 Rh7 Nh3 g1R Ka3 Na6 Nab2 Nac5 Nd3 Ngf6 g8N Bg7 Nh6 Qb8 Ng4 Nc3 Nh2 Ng4 Qd2 Bc6 d8N+ Kd5 d7 Qe5 Qd1 N5e4 Qd2 Rc8 a8N Bh8 Qd1 Rf7 Qd2 Rg2 Qd1 Rd2 Nhf4+ Kd4 Ng2 Kd5 Nb7 Rcf8 d8N Be8 Nc6 Ke6 Nba5 Rf1 Ncb4 R8f7 Nac6 Rh1 Qg1 Bf6 Qb6 Re1 Bb2 Rb1 Qb8 Qd5 Qc7 Bd4 Qd8 Bf2 Bc1 Qe5
4r3/1Bp1p1B1/B1ppppB1/2N3Qb/1BPk1Bqb/3B1n1K/1P3P2/3n2R1 w - - 1 2 illegal: Other
K2RQn2/Pq2b1QR/Q2q2n1/P2B1k2/1B1Bnr2/4Q1rq/P5Q1/2r5 w - - 0 1 legal: proof: d4 a5 e4 c5 dxc5 f5 exf5 b5 c3 b4 cxb4 Ba6 bxa5 Bb5 b3 Ba4 bxa4 g5 g4 h6 f4 Ra7 f6 Ra6 f5 Ra8 Ne2 Rh7 Nd2 Rh8 Nf4 gxf4 Ne4 h5 g5 Nh6 Nf2 Ng8 Ng4 hxg4 a6 Kf7 Ke2 e5 Kd3 d5 h4 f3 h5 d4 Kc4 f2 Kb5 d3 a5 g3 h6 g2 h7 g1R a7 e4 g6+ Ke8 c6 e3 g7 Kf7 c7 e2 Kb6 e1N Kb7 d2 c8Q Bb4 Qf3 d1Q Bg2 f1Q Ba3 Qe8 Qe3 Nd7 Rh4 Bd6 Bb4 Nd3 Rh1 Qd2 Rd1 Qe7 Qc6 Nf2 Qa6 Rc8 Rh6 Rc6 Ka8 Rc1 Bh1 Ke8 f7+ Kd8 f8B Qh3 f6 Rg6 Bb7 Ne4 f7 Rg4 Bc6 Rf4 Bc5 Qb2 Rd5 Qee5 Bd4 Ne7 g8Q Qee6 Qgg1 Rg8 h8Q Rg3 Qg7 Ng6 Qg2 Ba3 Bfc5 Qb3 Rd6 Ke7 Rh7 Qe5 Rd5+ Ke6 f8Q Qc7 Qb8 Ndf8 Qe8+ Qe7 Rd7 Kf5 Rd8 Qc7 Bd5 Qb1 Bb6 Be7 Bbc5 Qd6 Ba3 Qb5 Bb4 Qb7+
2N2r2/2N1P3/n3p2p/k2b4/B1r1NBP1/1QPr1br1/2pK3Q/B3NN2 w - - 0 1 legal: proof: b4 a5 a4 b5 axb5 g5 h4 c6 hxg5 a4 c3 c5 Ra2 c4 Ra3 Bg7 Ra1 Qa5 bxa5 Be5 Ba3 Bd6 Bc1 Bb4 cxb4 c3 g4 e6 e4 Na6 e5 Nc7 Na3 Nd5 Qb3 c2 Bb2 Ke7 Rd1 Nc3 dxc3 Kf8 Rd5 exd5 e6 d4 e7+ Kg7 Rh3 Kg6 Rh6+ Kg7 Re6 fxe6 Qa2 Kg6 Qb3 Kf7 f4 Ke8 a6 d5 b6 Kd7 b7 Kc7 b8Q+ Kc6 b5+ Kc5 f5 d3 a7 h6 f6 d4 b6 Bb7 g6 Bf3 g7 Bd5 f7 Nf6 f8N Ne4 Qh2 Rc8 Nb1 a3 g8N a2 a8N a1R b7 d2+ Ke2 d1R b8B Rc1 Nf3 d3+ Ke3 d2 Ne1 d1B Nd7+ Kc6 Bf4 Bf3 Ngf6 Nc5 Nd2 Na6 Nfe4 Rhf8 Ndb6 Kb7 Bb5 Rc4 Nf1 Rab1 Ng2 Re1+ Kd2 Re3 Nc7 Ra1 Ba4 Rc1 Nfg3 Rg1 Nf1 Ka7 Ne1 Rg3 Ba1 Kb7 Nb5 Kc6 Nc8 Kb7 Nca7 Kb6 Nc8+ Ka5 Nc7 Rd3+
r2BqB2/k1P3b1/2nbQ2Q/2R1bPQ1/4r2q/nR4r1/3P1BBB/K6n w - - 0 1 legal: proof: e4 a5 a4 f5 exf5 h5 g4 b5 axb5 a4 gxh5 a3 b6 Bb7 b3 Ba6 c4 c5 Ne2 Bb5 Nbc3 Ba4 bxa4 Rh6 Na2 Rh8 Nb4 cxb4 Nd4 Ra6 Nb3 Ra8 c5 d6 Na5 d5 Nc4 dxc4 f4 Kd7 h4 Kc6 a5 Kb7 c6+ Ka6 f6 e5 f7 g5 f5 g4 h6 a2 h7 b3 b7 b2 h5 b1N h6 e4 Bg2 g3 Qh5 c3 Kd1 e3 Kc2 e2 Qg5 e1B Bb2 Bc5 f8B Qd7 Rh3 Ka7 a6 Bd6 c7 Nc6 b8B+ Kb6 Kc1 c2 Be5 Na3 Kb2 Qe8 Rc1 Nf6 Ka1 Ne4 Bf6 Rg8 h8Q Nf2 h7 Nh1 Bd8 Rg7 Qg8 Re7 h8B Re4 Qe6 Bf2 Bb2 Bd4 Qgh6 B4e5 Ba7+ Kb5 Bad4 Bg7 a7 Ka6 Bf2 Kb7 Rb1 c1Q Be5+ Ka6 Qg5 Qc4 Rc1 Qb4 Rc5 Qc4 Bf1 g2 Rb3 g1R Qeh6 Rg3 Bg2 Rc3 Bh2 Qb4 Kb2 a1B+ Ka2 Rg3 Qe6 Rb8 a8Q+ Kb6 Qa4 Ra8 Qeh6 Bac3 Qb5+ Ka7 Qc4 Bce5 Qce6 Rc3 Ka1 Qd4 Bh4 Qf2 B4g3 Qf4 Be1 Qh4 Bf2 Rg3+
2N1r1k1/2Rn1R2/1P6/3N2qr/1b1QbR1r/K1pQrR1P/Pr2r3/3N3R w - - 0 1 legal: proof: c4 b5 b4 h5 g4 f5 gxh5 a5 d4 d5 e4 c5 exf5 Na6 cxd5 c4 Ba3 Nc5 dxc5 c3 Bc4 bxc4 b5 Bd7 b6 Bc8 Bb4 axb4 f4 Kf7 c6 e5 h6 g5 c7 g4 h3 g3 h7 c2 Kd2 c1R f6 g2 f5 e4 d6 b3 d7 b2 Ne2 g1R Nbc3 b1R Nf4 Ba3 Nfd5 Bb7 c8N Rg4 Qa4 Bc5 Nd1 Rc3 Qb4 Re3 Kc2 c3 Qd4 Qe7 d8Q Rh4 Qd7 Kf8 f7 Bb4 Qd3 Kg7 f8R Ba5 Qa4 Rh5 Qad4+ Nf6 Rf1 Qe5 Rf3 Nd7 Rf6 Re8 h8R Rb8 Rhh6 Kg8 Rf7 Rb3 f6 Qg5 Rhh7 Re2+ Qd2 e3 Rc1 Rb4 Qd3 Rbh4 Kb3 Ree4 Ka3 Rb4 Qd4 Rb2 Q2d3 Ra8 Nd6 Re8 Nc8 Nb8 Rc7 Nd7 Rf7 Bc6 Nf2 Bb7 Rh1 Bc6 Nd1 Ba8 Nf4 Be4 Nd5 Rec2 Re7 e2 Rh7 e1R f7+ Kf8 Rg7 Re3 Rh7 Rce2 Rg7 Qf6 Rg4 Qe5 Rgf4 Kg7 f8R Qf6 Qb4 Qg5 R8f7+ Kg8 Qbd4 Bb4+
1NQq4/4P2P/1q3R1N/P1p2N1p/3Q1R2/QpNrNK1k/1q4n1/1b1br3 w - - 0 1 legal: proof: c4 e5 d4 a5 b4 d5 bxa5 Bh3 cxd5 Bc8 f4 Bc5 d6 Ne7 d5 Bb6 e3 Bd4 exd4 Ng8 g4 h5 Be3 e4 Bf2 Nc6 Bg3 Ne5 fxe5 h4 g5 hxg3 h4 g6 h5 Bf5 h6 Bg4 Be2 Bc8 Bh5 gxh5 Ke2 Kd7 a4 b5 g6 f5 e6+ Ke8 a6 c5 d7+ Ke7 a7 Kf6 e7 Kg5 a5 Kg4 h7 g2 g7 b4 d6 f4 d5 e3 Qd3 Qe8 d8Q Nf6 g8N Rb8 a8N Bf5 Nf3 g1Q d7 Qc1 d6 Nd5 Qc8 Qd8 Rf1 Kh3 Nh4 Qb2+ Kf3 e2 Qa3 e1Q Nh6 Ne3 Nc7 Ng2 Nd5 Qe6 Nbc3 Bb1 Ne3 b3 N4f5 Rb4 Rf2 Rd4 Rf1 Rd3 Rf2 Rf8 Rf1 Qb6 d8N Qd7 Nc6 Qdd8 d7 Rf7 Nb8 Rf6 Ke4 f3 Ra2 f2 Kf3 Re6 Ra1 Qh8 d8Q Qe8 Qd4 Qed8 Rg1 f1B Ra2 Nf4 Rg6 Ng2 Rf6 Be2+ Kf2 Bc2 Ra1 Bf3 Rf1 Be4 Ke2 Re5 Rf4 Bf3+ Kf2 Bfd1 Nc4 Re1 Nce3 Re2+ Kf3 Bb1 Rg4 Qa7 Re4 Qab6 Rf4 Re1+
B4b1B/PnQ1q2Q/n3r3/2P1BnBr/3P1qkn/3n2B1/b7/B2nNK1R w - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 h5 g4 f5 gxh5 f4 c4 f3 Nc3 Ra6 Nb5 Ra7 exf3 Ra8 f4 Nf6 f5 Ng8 Rb1 d6 Rb4 cxb4 c5 d5 Na3 Na6 Nc4 dxc4 Qg4 Nb8 Qe2 Nh6 Qd1 Ng8 d4 Kd7 h4 b5 f4 g5 f6 Ke6 f7 Kf5 h6 e5 a6 g4 a5 c3 h7 g3 a7 b3 a6 b2 h5 b1Q h6 g2 Be3 c2 Ne2 g1N Bd2 c1N Qb3 e4 Qd3 b4 Bg2 b3 Kf1 b2 Bc3 Kg4 f5 e3 f6 Nf3 Ng1 Nh4 Nf3 Qe7 Ne1 Be6 Be4 Qc2 Bc6 b1N Ba1 Qd2 Bd5 Bg7 f8B Nc3 f7 Nb3 Qc2 Na5 Qg6+ Qg5 Bd6 Nb7 f8B Nd1 Bfe7 Bf8 Bg3 Qc1 Bf6 Ne7 Qb1 Qg7 Bg5 Nef5 Qb6 Qd2 Qc7 Qe7 Be4 Ba2 Bg2 Rg8 h8B Rg6 h7 Re6 Bhe5 Qc1 h8B e2+ Kg1 Qf4 Bd5 Nd7 Bc6 Rd8 a8Q Nb8 a7 Na6 Qac8 Rd5 Q8d7 Na5 Ba8 Nb7 Nf3 e1N Kf1 Qf6 Qg7 Qe7 Qh7 Nd3 Bf2 Rh6 Ne1 Rh5 Qd7 Rd6 Qc7 Qd2 Bfg3 Re6 Qg8 Qc1 Qh7 Qf4+
4R1r1/2bk3b/N4bRp/4Q3/nqKPQ3/1PRr3r/1P1R1qq1/R2Nn1Q1 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 b4 g4 b3 axb3 h5 h4 Bb7 d3 Bc8 g5 Be6 g6 Bf7 Be2 Nf6 Bg4 hxg4 h5 Ng8 h6 Be6 h7 Bc8 Bh6 gxh6 Ke2 e5 f4 a5 f6 c5 f7+ Kd7 d6 e4 g7 a4 f5 c4 f6 e3 Ra2 a3 Qc1 c3 Qe1 g3 Rh4 c2 Nf3 c1B Rc4 g2 Ng1 Nc6 Qf2 Ne5 Rc3 Nf3 Nh3 g1Q Nd2 Qe7 Ra1 a2 Ne4 Qg2 d4 Ra5 Kd3 e2 Kc4 e1Q Qg1 Bf4 Nhf2 Rh5 Nd1 Qef2 Nc5+ Kc6 d7 Bc7 d8R Rh3 Qh2 Bf5 Qg1 Ne1 Re8 Bc2 Na6 Kd7 Kb5 Qa3 Kc4 Ne7 g8R Nd5 Rg6 Bg7 f8R Rg8 f7 Bf6 h8Q Bf5 Re2 Qe7 Rd2 Nb6+ Kb5 Bc2 Re8 Na4 f8Q Qd6 Kc4 Bf5 Rgg3 Bh7 Rg6 Qa3 Qc5 Rd3 Qe5 Qf8 Rac1 a1R Qe4 Qb4+ Kd5 Ra2 Qh2 Bg7 Ra1 Nc5 Qh1 Ra5 Qg1 Bge5 Qf6 Rb5 Qf8 Na4+ Qc5 Ra5 Qh2 Bf6 Qg1 Qb6 Kc4 Qb8 Qb4 Rh5 Qc5 Rhh3 Qce5 Qb4+
q3bQ2/r1Pr1N2/1k1Bn3/1B1Pp3/4KnBp/rB1P1Qb1/BnQb4/7N w - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 f5 e4 g5 g4 d5 exd5 Nh6 h4 Ra7 hxg5 Ng8 Rh3 Na6 Rb3 Ra8 Rb4 cxb4 Ra3 Nb8 Re3 Nd7 Re5 Nb8 Re4 fxe4 Ke2 Kd7 Ke3 Kc7 c4 h5 f4 e5 f5 b5 g6 h4 a6 b3 g7 b2 g5 b4 f6 b3 a5 Qd7 a7 Ne7 g8B Bb7 a6 Kb6 g6 Bg7 f7 Qh3+ Nf3 Qf5 f8Q Bc6 Ng5 Be8 Nf7 Nd7 Qc2 Rh7 Nc3 b1N Nd1 b2 Nf2 Nc3 Nh1 b1R Ba3 Rd1 Bd6 Nc5 Bh3 Ne6 Bg4 Bf6 g7 Qg6 Nh6 Ra1 Nf7 Rd8 a8B Ra3 a7 Rd7 Bc6 Na4+ Qc3 Nb2 a8Q Qh5 Bb5 Ng6 Qa4 Ngf4 Qc2 Bg5 Q3d3 Raa7 Qf1 Bh6 Qf3 Rh8 Bh7 Qg5 g8B Qd8 Bg6 Qa8 B6f5 Nd8 Be6 Rh7 Ba4 Ra5 Bb3 Rda7 Bd7 Ra3 Bb5 Nde6 c5+ Kb7 c6+ Kb6 c7 Rg7 Bh7 Bg5 Nh6 Rd7 Nf7 Ng2+ Ke2 e3 Bhd3 Bf4 Bdc4 Bg3 d3 Ngf4+ Kf1 Nh5 Kg2 e2 Ba2 e1B Bcb3 Nd4 Qc4 Bd2 Qc2 Bh2 Kf2 Ne6 Kg2 Nhf4+ Kf2 Bb4 Ke3 Bd2+ Ke4 Bg3
Q5Q1/N3R3/N1N4q/1nn1Nr1N/rpP1b1P1/PkBNr3/4r1pn/K1b5 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 a3 h5 f5 h4 g3 h3 Bg2 hxg2 Ra2 Na6 Rb2 Nb8 Rb4 Bh6 Rc4 Bf8 Rf4 gxf4 Kd2 Kf7 Kc3 d5 Kb2 b5 h4 e5 c4 b4 h5 f3 a6 e4 g4 e3 h6 f2 h7 f1N a7 d4 c6 d3 c7 d2 Nf3 e2 Ka1 e1R Nc3 Bh6 Nd4 Bg5 Qf3 d1R Nce2 Qd7 Ng3 Re6 Nh5 Ba6 c8N Bb7 Nc6 Rd5 Bb2 Re3 Bc3 Nh2 Re1 Ne7 Re2 Rf8 h8Q Qd6 Re1 Na6 Qg8+ Ke8 f7+ Kd7 f6 Ke6 Re2 Re8 Re1 Nc5 Qe4+ Kd7 f8N+ Kc7 f7 Qh6 Nd7 Nf5 f8N Nd4 Ng6 Rf5 Ngf4 Nb5 Nde5 Re2 Nfd3 Bc1 N6e7 Bd5 N7c6 Kb7 Qf3 Ka6 Qe4 Re3 Qf3 Be4 Re2 Rb8 a8N Re7 N8a7 Rbf8 Nb6 Ra8 Nbd7 Re6 Ndb8+ Kb6 Ne7 Ka5 Na6 Ka4 Ne7c6 Kb3 Qf4 Rae8 Qfg5 Rb8 Q5d8 Rb6 Qa8 Re7 Nc7 Ra6 Re1 Ra5 Na6 Ra4 Qad8 Rg3 Ng6 Bd5 Qa8 Re8 Re7 Bf3 Rf7 Re2 Nge5 Be4 Re7 Rge3
r1Q1RB2/P2br1n1/3p4/pn2QB2/6Bk/3B2r1/Pr2q1Pr/q1Q2BKR w - - 0 1 legal: proof: d4 g5 h4 c5 dxc5 a6 hxg5 Bg7 b4 Be5 c6 Bd4 b5 Ba7 e4 e5 b6 Ke7 bxa7 Ke8 Nf3 f6 Nd4 exd4 e5 f5 Nd2 Ke7 Ne4 fxe4 Bd2 Kf7 Bc1 Ke8 c4 Ke7 f4 b5 Kf2 h5 g6 a5 c5 d6 e6 Kf6 g7 d3 f5 b4 c7 h4 c6 b3 e7 b2 e8B b1R Rg1 d2 Bd7 Kg5 f6 h3 f7 e3+ Kg3 h2 f8Q h1Q Qff3 e2 Kf2 e1R Bg4 Bd7 c8B Nh6 g8B Na6 c7 Rb2 Qe3+ Kh4 Bgc4 Qe8 Qe5 Nf5 Bcd3 Ng7 Qc2 d1R Bh6 Rdb1 Qd2 Rb3 Qc1 Re3 Bgf5 Rg3 Bg4 Rb7 Bgf5 R1b6 Rb1 Rb4 Rb2 Re4 Re2 Rb2 Bg4 Nb8 Bf5 Nc6 Bg4 Nd4 Bf5 Nh5 Bf8 Ng7 Bg4 Nb5 Bf5 Qh3 Rh1 Ree3 Kg1 Rh6 Qec5 Re7 Qe5 Qh5 Re1 Qe2 Bg4 Bc6 Bce6 Bd7 c8Q Qe4 Bd1 Re3 B1c2 Rb1 Qg3+ Kh5 Bdc4 Rf7 Bed5 Qe5 Be6 Qa1 Qe8 Rb2 Bg4+ Kg5 Qh2 Qf3 Qc8 Rh5 Qg3 Rh2 Bcf5 Qe4 Qf4+ Kh4 Bcd3 Rg3 Re3 Qf3 Re8 Qe2 Qe5 Re7
2QB2K1/1RPp2Rp/qnPRQ3/k2n1R1B/5Pb1/1n5p/2Bq4/brrR4 w - - 0 1 illegal: No proof kernel
1n1b4/p2pp3/2q1Q1PP/P4NkB/NBb3q1/2B3NQ/1NK3Nb/r2rn3 w - - 0 1 legal: proof: c4 c5 b4 f5 bxc5 f4 d4 f3 c6 Na6 c7 Rb8 c5 Kf7 c6 Ke8 exf3 Ra8 f4 Nb8 f5 Nh6 Qf3 Ng8 Qb3 Nh6 Qd1 Ng8 h4 g5 g4 h6 f4 Kf7 a4 Qe8 f6 h5 f5 Bg7 Rh2 Bh6 Rf2 Bf8 Rf4 gxf4 Ra3 Bh6 Rg3 Kf8 Qd3 Qg6 Qd2 Ke8 Qd1 Bf8 g5 Qf7 Rg2 Qc4 Rg4 Qc5 dxc5 hxg4 Kd2 Kf7 a5 b5 g6+ Ke8 h5 g3 Be2 f3 Na3 f2 Nc4 f1Q Qb3 g2 Nb2 b4 Qe6 Ba6 c8N b3 c7 Qf3 c6 Qh3 Nb6 Bc4 c8N Bg7 c7 Kf8 f7 Nf6 N6a4 Qg4 Nd6 Nd5 c8N Nb4 Ncb6 Bd4 Nd5 Kg7 f6+ Kh6 f8B+ Kg5 f7 Nd3 h6 Bb6 Nf4 Ne1 Bg7 Rc8 f8Q Bd8 Nf5 Rc6 Kc3 Rd6 Bd2 Rd5 Bf3 Rd6 Nge2 g1B Neg3 Bh2 Qff7 Rd5 Qe3 Rd4 Qfe6 Rd5 Nbd3 b2 Be5 b1Q Ndb2 Qe4 Ng2+ Qgf4 Bg7 Rd6 Bh5 Qc6 Bc1 Rd1 Bd2 Na6 Bd4 Rb8 Bc5 Rb5 Bb4 Nb8 Qf3 Ra1 Qd3 Rd5 Qde3 Nf3 Kc2 Rd4 Bdc3 Rdd1 Qe1 Qg4 Qh1 Bg1 Qh3 Bh2 Qg8 Qb6 Qd5 Qc6 Qe6 Ne1+
N2B2q1/NB2K1n1/Qr3bB1/p1rpPNpB/5p2/5Q2/2BP1rP1/2q1kb2 w - - 1 2 illegal: No possible last move
N1n1rB1Q/4N3/3R1pQ1/1pbN1P2/1PPq1b1r/NbNr3N/2qk4/1K1n2r1 w - - 0 1 illegal: No possible last move
1Kb3rn/Bprb1Np1/4BBkr/1P1rb3/PQ1N2P1/1qq2N2/1N2QN1n/8 w - - 0 1 legal: proof: c4 d5 cxd5 f5 e4 a5 exf5 Nf6 a4 Ra6 b4 Ra8 b5 Ng8 Ra3 Nc6 Ra2 Nb8 Rc2 h5 Rc4 h4 Rb4 axb4 g4 Qd6 h3 Qg3 Rh2 Qf4 Rg2 Qd6 Rg3 hxg3 h4 Qd8 Ke2 Kf7 Kd3 c5 Kc4 e5 f4 b3 d4 e4 h5 b2 d6 g2 Kd5 c4 h6 c3 h7 e3 f6 c2 f5 e2 d7 e1R Na3 b1B Nc4 Nh6 Nh3 g1R Be3 c1Q Qe2 Qc3 Nb2 Qca5 Nf2 Qe8 d8B Qb6 Be7 Qa7 Kd6 Bd3 Kc7 Ra1 d5 Bc4 d6 Rc1 d7 Nc6 d8Q Qa6 Qdd2 Nd4 Qb4 Nf3 Ba7 Nh2 Bg2 Rgd1 Bd5+ Qe6 Bd8 Rh1 Be7 Rg8 Bd8 Be7 h8N+ Kf8 f7 Bd6+ Kb6 Qf6 Be6 Qc3 Bf6 Rhd1 Be5 Ke7 f8N Nf7 Nh7 Rd5 Ng5 Qb3 Nf3 Qc6+ Ka5 Ke8 f6 Bd7 Bd4 Be5 Bc3 Qc8 Kb6 Bd3 Bd4 Rc7 Bc3 Bf5 Bd4 Nd6 f7+ Ke7 f8N Kf6 Nf7 Rh8 Nh7+ Kg6 Nhg5 Rh6 Bc3 Rb8 Nd4 Ra8 Ngf3 Rb8 Bd2 Ra8 Bg5 Rb8 Nd8 Nf7 Bf6 Nh8 Nf7 Rc2 Bg5 Qcc3 Bf6 Rg8 Qc5 Rd6+ Kc7 Bc8 Kb8 Rc1 Bc4 Bfd7 Qb4 Rd5+ Ka8 Rc5 Be6 Rc7 Kb8 Rd1 Nc6 Rd6 Ncd4 Rd5
Q3r2n/KpQ3PQ/1R1R1Q2/3n2bp/1qN2QqN/p2b3P/P2p2qN/2kr4 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f6 bxc5 Nc6 e4 Kf7 e6+ Ke8 e5 Nb8 e7 Kf7 f4 Ke6 Bd3 Kd5 e6 Kc6 f5 g6 Bb2 Kd5 Be5 fxe5 f6 Kc6 Bf5 gxf5 Ke2 Kb5 Ke3 Ka4 e8N a5 g4 h5 c4+ Kb4 h3 d5 f7 a4 c6 e4 Kd4 f4 g5 a3 c5 e3 g6 f3 g7 f2 e7 f1Q c7 e2 c6 e1Q Nd2 Qfe2 Nf6 Qd6 e8Q Qde6 Qc1 Ra6 Nc4 Nd7 Nf3 Qg2 Ng4 Nb6 Ngh2 Ne7 Qf4 Qeg4 Rd1 Bf5 c8Q Ng6 c7 Be7 f8Q Bd3 Qf6 Rg8 Rd2 Nh8 Qeg6 Re8 Qh7 Ra8 Qd7 Rad8 c8Q Qb1 Nh4 Qb3 Qfe6 Bg5 Qdc7 Rd7 Rb1 Rd6 Ke3 Kc3 Qa8 Qb4 Rdd1 Kc2 Kd4 Rdd8 Qf6 Rd7 Rb3 Rdd8 Rd2+ Kc1 Rbb2 Qb3 Kc5 d4 Qcc8 Nd5 Qcc7 Nb4 Kb6 Nd5+ Ka7 Qb4 Qd7 Re1 Rb3 Rd1 Qdc7 Re8 Rbb2 Bc2 Rb3 d3 Rb2 Qc3 Rb6 Qb4 Rd6 Bb1 Rb2+ d2 Rb3 Bd3 Rb2 Qc3 Rbb6 Qb4
1K1BkBQ1/2pp3R/4Pr2/Q2rqBb1/3PbRp1/pB1nq2q/2P1n3/1B5R w - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 fxe5 Bd6 g4 Ba3 Nc3 Bf8 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Bc5 Nf2 Bf8 Ng4 hxg4 d4 a5 Kd2 f5 Kd3 a4 Kc4 a3 b4 f3 h4 f2 e4 f4 e6 f3 e5 Nh6 g6 Rh7 h5 Ke7 b6 Rg7 Kb5 Nc6 b7 Ng8 b8R Ra7 h6 Ra8 h7 Ra6 h8B Ra8 Rh7 Ra6 Bd3 f1Q Qd2 Rf7 g7 Qh3 Bf5 Ke8 e7 Nh6 g8B f2 Bf6 Rg7 Ba2 Qf3 Bb1 Kf7 e8B+ Kg8 Bh5 Qe8 Bd8 Be7 Bf7+ Kf8 Bb3 Qe3 Qc3 Qh5 e6 Rf7 Qc5 Rf6 Qb6 Qhg5 Qa5 Ke8 Bd2 Ra7 Ra8 Rb7+ Ka6 f1Q+ b5 Qfh3 b6 Ne5 Bb4 Nd3 Bd6 Rb8+ Ka7 Bb7 Bb4 Be4 b7 Qgf4 Bc5 Qe5 Bb4 Rg6 Bd6 Bg5 Bf8 Rc8 b8Q Rf6 Qb7 Rb8 Qc8 Rb4 Rb8 Rc4 Rb5 Rc5 Kb8 Rd5 Rc5 Nf4 Rc3 Nf7 Rd3 Qg1 Rf3 Ne2 Rf4 Qgg3 B1a2 Qe3 Rh1 Qd6 Bb1 Ne5 Qca6 Qc5 Qd6 Nd3 Qe5 Rf7 Qh8 Rf6 Qg7 Qd6 Qg8 Qe5
1k1nB2n/2nr1b2/pBb2n2/1P1B4/1B1R2K1/2B1rNP1/1b1P1B1R/4B1q1 w - - 0 1 legal: proof: b4 b5 e4 c5 c4 g5 h4 f5 hxg5 d5 exf5 Bh6 cxd5 c4 a4 c3 Na3 Bf8 Qb3 c2 Qb1 cxb1Q a5 Qb2 Ke2 Qd4 Ke1 Q4b6 axb6 Qd6 Nb1 Qc7 Nc3 Qd8 Na4 bxa4 b5 a3 Ke2 Kd7 Kf3 h5 g3 e5 d6 h4 b7 e4+ Kg4 e3 f4 e2 g6 e1N g7 h3 f6 h2 f5 a2 f7 a6 f6 Nc6 b8B Rh7 Be2 Qb6 Bf3 Ng2 Ba7 Nh4 Bb2 Ng6 Bc3 Nh8 Bd5 Nd8 Nf3 Qg1 Bf2 Be7 Re1 a1N f8B Nc2 f7 Bf6 Re4 Nd4 Be1 N4e6 Rd4 Nc7 Be7 Bb7 f8B Kc8 d7+ Kb8 Beb4 Bc6 Bfc5 Be5 Bf7 Ra7 Be8 Nf6+ Kf5 Bd5 g8B Re7 Kg5 Bf7 Kh4 Nc6 d8B Rd7 Bb6 Ra8 Bde7 Nd8 Bec5 Ra7 Rf4 Rd3 Bcf2 Re3 Kg5 Na8 Rd4 Rd7 Bh7 Nc7 Be4 Qg2 Bd5 Qf1 Rg1 h1B Rg2 Qg1 Rh2 Bd6 B4a5 Ba3 Bab4 Bb2 Be4 Bd5 Kf5 Bc6 Bd5 Bg2 Kg5 Bh3 Kh4 Be6 Kg5 Bf7 Kf5 Ng8 Kg4 Nf6+
2NNb1k1/1pBrrNp1/1Q1Kb3/qP4nB/6NN/P5Pn/2nn1bb1/2N1N3 w - - 0 1 illegal: No possible last move
2nr3Q/NBn1q3/2pr3B/2Ppbb1k/B1BP2pq/7p/2B1K1BP/1b3B1N w - - 0 3 legal: proof: f4 e5 fxe5 f5 b4 a5 bxa5 Qg5 g4 Nc6 a3 Qd8 g5 Nb8 a4 g6 Nh3 Bh6 Rg1 Bg7 Rg4 Bf8 Bg2 fxg4 Ra3 Bh6 Rf3 Bf8 Rf5 gxf5 e4 Kf7 c4 Kg6 e6 h5 e5 b5 a6 h4 a5 d6 e7 f4 e8B+ Kh7 g6+ Kh6 e6 f3 c5 f2+ Ke2 b4 g7 b3 a7 b2 e7 Bf5 a6 Bh7 Bg6 Qc8 e8B Qb7 Na3 b1B Ba4 Ne7 g8B Bg7 Bf1 Nc8 Bc4 Rd8 Bgc2 Bf5 Nb5 Kh5 d4 Bh8 Bh6 Be5 Qd3 Rd7 Qe4 Rd8 Qd5 Rd7 Qg8 Rd8 Ng5 h3 Qh8 Rd7 Ne4 Rd8 Bg2 c6 Ng3+ Kg6 Nh1 d5 Kd2 Kh5 Ke3 Nd7 Ke2 Rb8 a8B Nf8 a7 Qe7 Bb7 Ne6 a8B Nc7 Na7 Rd6 Bba6 f1Q+ Kd2 Qf3 B8b7 Qg3 Bcf1 Qgh4 Ke2 Nb6 B6b5 Rbd8 Bc4 Nc8
BNN1Kn2/B1pr2b1/2n5/kB3rBb/Pp1q2R1/3B3p/1Pn2p1P/4qB1B w - - 0 1 illegal: No possible last move
n7/b1BP1b1B/3K1bPb/1QQq2qR/r7/2B1bRrQ/4Q1P1/2k3rR w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 f5 h4 g4 e4 g3 f4 Nd7 Nc3 Ne5 Nf3 Nf7 e5 Ng5 Ne4 fxe4 hxg5 e3 Nh2 gxh2 Rg1 h1Q f5 Qh6 Rh1 Qf6 exf6 Bb7 Ra4 Ba6 Ra1 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 c5 b6 h5 d6 a5 d7 c4 g6 c3 b7 c2 b8B Kb3 d5 e2 d6 e1R+ Qe2 a4 f7 h4 f6 h3 Ba7 a3 Bg5 c1B Bh4 h2 Rb1 a2 Bb8 a1B Bf2 Bfh6 f8Q Bce3 f7 Nf6 Bh4 Ra4 Bc7 Nd5 Bf6 Nb6 Ke6 Ka2 Bc3 Na8 b4+ Bb2 Kd5 e5 b5 e4 b6 Qg5+ Ke6 Ba6 d8Q Bc4+ Kd7 Ka3 b7 Ba7 b8Q e3 Qfe7 Ka2 f8R Bf7 Qb6 Rd1 Qeb5 e2 Qc8 e1B Q6c5 Bf2 Qee2 Be3 Kc6 Rh7 Qh3 Re1 d7 Rd1 Bd2 Bf6 Kd6 Rh8 Rb4 Ra1 Rh4 Re1 Rg1 h1Q Rh5 Ka1 Bb4 Kb1 Bc3+ Kc1 Qe6 Qhh4 Rh1 Qe4 Qh3 Qgg4 Qf2 Rh7 Bc4 Rg1 Qe2 Qg5 Be6 Be8 Bg8 Bf7 Re8 Rh8 Bh7 Qef5 Rb8 Re8 Rc8 Ree4 Re8 Rg4 Re5 Qe4 Rf5 Rg3 Rf3 Qed5+
1QQ1R1Rq/b1n3N1/5Q1q/p2bn1Q1/3Pp1K1/2P1PR2/2r3k1/b2N2rN w - - 0 1 legal: proof: g4 b5 b4 h5 gxh5 d5 a4 g5 axb5 f5 f4 d4 fxg5 f4 Kf2 d3 Kg2 c5 c3 f3+ Kg3 f2 Bh3 Nc6 Kg2 Nb8 Be6 Bh6 Bb3 Bf8 Bc2 dxc2 bxc5 Qd4 d3 Qd8 Be3 f1Q+ Kg3 Qe1+ Kg2 Rh6 Bd4 Rh7 Bh8 Rxh8 Kf3 Kf7 h4 Ke6 g6 Kf5 e3 c1B g7 a5 b6 e5 d4 Rh6 b7 Rd6 c6 Rf6 c7 Re6 h6 Re8 h5 Bca3 h7 Nf6 g8N Nfd7 h8R Bg7 h6 Nf8 h7 Ne6 Ne2 Nd7 b8Q Rf8 Rg1 Bb2 Na3 Qeh4 Nf6 Qh6 Ne8 e4+ Kg3 Ba6 c8Q Nc7 Nc4 Bb7 Qf1+ Kg5 Qg2 Rf2 Raf1 Ba1 Nb2 Ne5 Nd1 Bf8 Ng7 Bc5 Re8 Bd5 h8Q Ra6 Qf8 Ba7 Qff3 Rg6 Qf7 Qh8 Qfe6 Qd6 Qf6+ Kh6+ Kh4 Qc6 Ng3 Rc2 Nh1 Qd6 Ne6 Qdf8 Kh3 Kh5 Rf2 Qfh6 Rf3 Ng4 Kg3 Rg5 Kf4 Kh4 Ng7 Ne5 Qff5 Nd7 Qf2+ Rg3+ Qg5+ Kh3 Qf1+ Kh2 Qfa6 Ne5 Qf6 Rh3 Rg4 Rg3 Kf5 Rg1 Rgg3 Nd7 Kg4 Ne5+ Kf4 Qh5 Qgh6 Nc6 Nf5 Bb2 Rgg8 Ba1 Qhg5 Q5h6 Ng7 Ne5 Ng3 Nc4 Kg4 Kg2 Nh1 Ne5+
1nBr2k1/1Q1Q1q2/1NbNq1nQ/5NNP/pr3bB1/1P2P1B1/rq6/3Kn3 w - - 0 1 legal: proof: c4 b5 h4 h5 g4 g5 f4 d5 cxd5 e5 a4 Na6 axb5 Rb8 Ra4 Ra8 Rh2 Nb8 Rg2 Nf6 fxe5 Ng8 Rf4 gxf4 g5 Bd6 Rg3 Bf8 Rg4 hxg4 d4 c5 g6 f5 d6 a5 g7 Kf7 d5 a4 b6 f3 e6+ Kg6 b3 Kh7 d7 c4 d6 c3 e7 c2 e8B g3 b7 f4 h5 g2 Nh3 g1N Nc3 Ne7 g8N Ng6 Qd2 Qf6 d8Q Be7 d7 Qe6 Nh6 Bd6 Nf5 Kg8 Nd5 Ra5 Qf6 Rb5 d8N Bd7 Ng5 Rb4 Bh3 Bc6 Bd7 Be5 Bb2 c1Q+ Qd1 Bc7 Be5 Qb2 e3 Bd6 Qd2 f2+ Kd1 f3 Bg3 Bf4 Bc8 f1Q+ Qe1 f2 Ndf7 Bd6 Bg4 Bf4 N7d6 Nf3 Nb6 Qfc4 Qec3 Ne1 Qd3 f1R Qdd4 Rf2 Qd3 Na6 b8Q Rc2 Qb7 Nb8 Qd5 Qf7 Qb5 Qce6 Qd7 Qa3 Qa6 Ra2 Qab7 Qb2 Nf3 Kh7 Qg5 Rd8 Qh6+ Kg8 Ng5 Be4 Na8 Bg2 Nb6 Bc6
2NK4/Q1R1rQ2/P7/1R3n1n/1Rq1kN2/2Q1p1Pq/q1b1q1P1/R3bqrN w - - 0 1 legal: proof: c4 e5 b4 d5 cxd5 a5 bxa5 g5 Nh3 g4 Ng1 g3 hxg3 Qh4 Rh3 Qe7 Rh1 Qd8 e4 f6 d4 Bg4 d6 Bc8 d5 Bg7 Bb2 Bf8 Bd4 exd4 e5 f5 Bd3 Qe7 Bc2 Qd8 Be4 fxe4 Ke2 Kf7 a4 Kg6 f4 Kf5 e6 h5 e7 b5 e8N c5 d7 d3+ Ke3 h4 a6 d2 a7 c4 Kd4 b4 a5 b3 a6 e3 d6 b2 Kd5 h3 Ne2 c3 Qe1 d1Q+ Nd2 Qc2 Ne4 b1Q Nf2 Qc7 d8R h2 d7 Nc6 Nd6+ Kg6 Ke6 Nf6 Rg1 Ne7 Nh1 Nh5 f5+ Kg5 f6 Nf5 Kf7 Qc4+ Ke8 Qba2 Nf4 Q2e2 f7 c2 Qc3 c1Q Re1 Rb8 a8Q Rb1 Qa7 Rh7 Rf1 Bb7 Nc8 Bb4 f8Q Be4 Qf7 Bc2 Rd1 Rg7 Rd5 Qcf1 Rb5 Kg4 Nb6 Re1 Rb8 Rh7 d8R Rd1 Qa3 Be1 Rdc8 Rb1 Kd8 Rc1 Qfd7 Re7 Rc7 Kg5 Qe8 Kf6 Rb4 Ke5 Nc8 Ke4 Qf7 Ke5 Nf2 h1Q Qb3 Qh4 Nh1 Ke4 Qc3 Qh3 R8b5 Bd2 Ne6 Qf4 Rbb1 Rg1 R1b4 Qff1 Nf4 Be1
3K1bq1/1NN2p1N/b1Q2P2/2QB4/P1qqn1qB/p2Qq2P/5r2/3Bk1nQ w - - 0 1 legal: proof: c4 a5 Qc2 d5 Qb3 d4 Qd1 Ra6 Qc2 Rd6 Qd1 Rd5 cxd5 Bh3 Qc2 Bg4 Qd1 Bc8 a4 b5 Ra3 b4 b3 bxa3 b4 Bb7 Nh3 Ba6 Ng1 Bc8 b5 Qd6 Nc3 Qd7 Nb1 Qd8 g4 Be6 Nf3 Qd6 Rg1 Kd7 Rg3 Bf5 Ng1 Ke8 Rb3 Qd8 Rb4 Bc8 d3 axb4 Bf4 h5 gxh5 e5 Bc1 e4 dxe4 Bh3 Nc3 Bd7 Nb1 Bc8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 f4+ Kf6 e5+ Kf5 e6 Kg4 e4+ Kh4 h6 g5 e5 c5 h7 d3 e7 d2 e8Q b3 d6 b2 Kd5 c4 e6 c3 b6 g4 d7 c2 f5 g3 f6 g2 b7 Qc7 d8N Bd6 e7 Qc3 Be2 Nc6 b8Q Nh6 Nb7 Ne5 Nh3 g1Q Qa7 Qg4 Qc5 Nf5 Ng5 Qe3 Nc3 b1Q Qec6 Nf3 e8B Ng3 Nb5 Ne4 Nc7 Ng1 h3 Rg8 h8Q+ Kg3 Nh7 Kf2 Qg7 Qb6 Qg6 Bf8 Bd7 Qa7 Be6 Qa8 Ke5 Rg7 Bd5 Rg8 Na5 Ba6 Nb7 Qf3 Qf5 Rg2 Qfd7 Qg4 Qf1+ Kg3 Bd1 Qc8 Qd3 Kf2 Qf5+ Ke1 Qf3 Rf2 Qh1 Qcd7 Bb2 c1Q Bc3 Qd8 Bd4 Qh6 Be3 Qc4 Bg5 Qb8 Bh4 Qe3 Qe7 Nc3+ Kd6 Qgd4 Kd7 Ne4 Qec5 Qa8 Bc2 d1Q Bb3 Qh5 Bd1 Qhg5 Bf3 Qg8 Bd1 Qa7 Kd8 Qb6 Q6b5 Qe6 Qbc6 Qeg4
4R2Q/Q1p1r2P/3R2n1/b7/k1P1Bb2/r2Bn2P/1p1BKRb1/QBn1b2b w - - 0 1 legal: proof: d4 e5 dxe5 f5 e4 a5 b4 Bd6 bxa5 Nc6 e6 Bf8 e5 Nb8 Nd2 Ra7 Nb3 Ra6 Nd2 Ra8 Ngf3 h6 Ne4 fxe4 Ng5 hxg5 h3 g4 g3 Qh4 gxh4 Ke7 Qf3 Kd8 Qd1 Ke8 f4 b5 a4 d5 f5 g5 a6 d4 f6 g3 a5 b4 e7 Kd7 e8R Kc6 c3 d3 f7 Kb5 a7 b3 a6 b2 h5 g2 e6 g1B h6 e3 e7 e2 h7 g4 Ra2 g3 Bd2 g2 Ra4 Bh6 f8Q Bb6 Bf4 g1N Qc1 Nc6 Qb1 Bb7 Bc1 Na5 Rd4 Bg2 Rh2 Bf4 Rd6 Ka4 Bd2 Nc4 Qg7 Bh1 Rf2 Ne3 c4 Ba5 Qc3 Nf6 Qbc1 Nfd5 Qf6 Rg8 Qh8 Rg7 Qb1 Nf5 Qc1 Nh4 Qb1 Ng6 Qc1 Rc8 a8B Ne3 Be4 Ra8 a7 Bg2 Rf8 Rf7 e8B+ Rd7 Bf7 Re7 Re8 Rb8 a8Q Rb3 Rf3 Ra3 Qa1 Bh1 Qa7 Bg2 Bb4 d2+ Kf2 d1B Bd2 Bc2 Be6 Bd1 B6f5 Bh1 Bb1 Bc2 Ke1 Be4 Rf2 Beg2 Bfe4 Bg5 Bc3 Bf4 Kd2 e1B+ Kd3 Nf3 Ke2 Nfe5 Bb4 Nd3 Bd2 Ng4 Kd1 Nc1 Bfd3 Na2 Ke2 Ne3 Rb6 Nf5 Rc6 Ne3 Rd6 Nc1+
B5rk/qn1NBQ1B/2rPrqB1/4N3/4NPpb/4Qn1p/2bKp2P/6Q1 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 d5 a4 f5 axb5 g5 e4 g4 Ne2 Bd7 Ra3 Be6 exd5 Bc8 Rf3 Qb6 Rg1 gxf3 g4 Qc7 g5 Qd8 Rg4 fxg4 c4 Kf7 d4 Kg7 c6 h5 c5 a5 g6 e5 c7 h4 b6 h3 b7 f2+ Kd2 a4 d6 e4 d5 a3 c6 a2 d7 a1Q Bg2 f1R Nd4 Ra5 Nf3 Ra7 Ba3 Qh4 d8Q Nh6 Qf6+ Kg8 g7 Nd7 b8N Re1 Ne5 Nf5 Nc3 Nc5 Nbd7 Nb7 Be7 Ra6 d6 Nd4 Qf7+ Kh7 Qf3 Rg8 Qe3 Qf6 Bf3 Rb6 Bh1 Qa7 Bg2 Nc5 Qg1 Ba6 c8Q Bd3 c7 Rc6 Qce8 Bc2 c8B Re3 Ba6 Nb7 Bd3 Re1 Bd8 Be7 Bf3 Rf8 g8B+ Kh8 Bh7 Rg8 Bg6 Qg7 Bg2 Bh4 Be7 Re2+ Kc1 e3 Ne4 Qf6 Bh1 Rf2 Bf3 e2 Kd2 Rg2 Bh7 Rg3 Nec5 Ba4 Nc4 Bc2 Bf8 Rc7 Bdg6 Na5 Ba8 Nb7 Qe4 Rb3 Be7 Rc6 Qd3 Rb5 Ne4 Re5 Qde3 Re6 Nce5 Nf3+
r1n2R1q/2R2K1P/2NNN1Pk/4Q1bb/Rp1QP2Q/1n6/1qpQp3/2q4r w - - 0 1 illegal: No proof kernel
nR4N1/p2b2pk/Q1b1qRqr/2p4Q/PPR1Q3/2R2n2/K3P1q1/2N2Nr1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 f5 cxb5 Nh6 g4 Ng8 Bf4 Bb7 Bg3 f4 Bh4 Ba6 Bg3 Bc8 g5 fxg3 f4 Ke7 f5 h5 f6+ Ke6 Bg2 h4 Bc6 Be7 f7 h3 Bg2 Bf6 gxf6 hxg2 Kd2 Kf5 Kc1 Kg6 f8Q d5 h4 c5 b4 d4 Kb2 d3 a4 d2 f7 Nc6 h5+ Kh6 e6 Kh7 h6 Nd4 b6 Nf5 b7 Rb8 e7 Nf6 e8N Nd4 Ka2 Bd7 Qe7 Nc2 f8R Qa5 Nh3 g1Q Nf4 g2 Rh4 Rd8 b8R Qa6 Nd3 Ne1 Rc4 Qe6 Nc1 Nd5 Rf6 Nb6 Qb3 d1B Nd2 Qh1 Nf1 g1Q Qd3+ Qg6 Qdd6 Na8 Qa6 Qhg1 Rb1 Q1g3 Rb3 Nf3 Rbc3 Bc6 Qeb7 Bd7 Qe4 Bc2 Nd6 Bc6 Nc8 Qg2 Ne7 Rd1 Ng8 Re1 Qg4 Bf5 Qe4 Bh3 Qb7 Qc8 Nh2 Rg1 Qc2 Qe8 Qb6 Bhd7 Qe4 Qe6 Qa6 Qgf5 Rf7 Kg6 h7 Kg5 Nf1 Qfg6 Rf6 Kh5 Nh6 Rf8 h8Q Rg8 Qh7 Rh8 Ng8+ Kg5 Qh1 Rh5 Ne7 Kh6 Ng8+ Kh7 Qh3 Rh6 Qh2 Qe8 Qh5 Qe6
1nnKR3/1np1rN2/1P2PQ2/2QRR1n1/1NnQ1pp1/1N5b/R4qP1/2r4k w - - 0 1 legal: proof: b3 b5 Bb2 b4 Bc3 bxc3 h4 g5 h5 Bg7 h6 d5 hxg7 d4 e4 a5 Bc4 d3 cxd3 a4 b4 e5 Bb3 axb3 f4 h5 fxe5 Kd7 Kf2 Ke6 Kf3 f5 a4 h4 d4 f4 Kg4 b2 b5 c2 a5 c1N b6 h3 d5+ Kf7+ e6+ Kf6 d4 h2 d6 Rh6 e5+ Kg6 d5 Nc6 a6 Qe8 d7 Qf7 d8R Qe7 d6 Qf7 d7 Na5 a7 Nd3 e7 Nc6 e8R Nge7 g8N Qa2 Nf6 Rh7 Nd5 Nb8 Nf3 Nc5 Qd4 Nb7 Re1 h1N Nb4 Ng3 Nbd2 b1N Nb3 Qf2 Ra2 Ne4 Qc5 Na3 Ree2 Nd5 Re3 Kh6 Kf5 Kh5 Ke6 Kg4 Re1 Kg3 Qd4 Rh1 Kf7 Ndf6 Ke7 Nh7 Re3 Rc1 Qc5 Ned6 e6 Nac4 Ne5+ Kh2 Nf7 Kh1 Rd3 Nba5 Rf3 Bb7 Re3 Bf3 Re5 Bg4 Qd4 Nab7 Qc5 Na6 Qd4 Rc8 a8Q Nb8 Qa5 Bh3 Qac5 g4 Rh8 Nd2 Rde8 Ng5 Rh5 N2c4 Rd5 Nf3 Rhe5 Ng5 d8Q Nb5 Rg8 Na7 Qf8 Rd8 Qh6 Rd7+ Ke8 Nba5 Qf6 Re7+ Kd8 Nc8 Re8 Nb7+
Qr3b2/P1K5/N1B2p2/prp2N1n/5q1B/b2r1Q2/PkPrr2N/1B3BQ1 w - - 1 2 illegal: Other
R1qRQ1N1/5Qn1/nNKp4/1rp1Q3/pbP1n3/PrN5/n1k1bP1p/1R2R3 w - - 0 1 legal: proof: h4 e5 d4 g6 dxe5 g5 hxg5 b5 a3 b4 e3 Nf6 Bc4 Ng8 e6 f6 Ba2 b3 e7 bxa2 Qd4 Kf7 Qg4 Kg6 Qd1 Kf7 e4 Ke6 e5 Qe8 Be3 Qd8 Bd4 Kd5 e6 Kc6 Be5 fxe5 Ke2 Kb5 Ke3 Ka4 Ke4 a5 Kd5 h5 e8Q e4 g4 e3 b4 e2 g6 e1N c4+ Nc2 b5 Kb3 e7 a4 b6 h4 g5 h3 b7 h2 g7 Rh5 Nf3 Nh6 g8N Nf5 g6 Na6 g7 Rb8 Qe1 Ncb4+ Ke5 c6 Nc3 Kc2 Rb1 a1N Qf7 Nb3 e8Q Nbc5 Qe3 Rg5 Rhe1 Ne4 Qd4 Na2 Qc5 Ra8 b8R Be7 Qd4 Bb4 Qe3 c5 Kd5 d6 Kc6 Rg3 Ne5 Be6 Rc8 Rb8 Nd7 Rb5 Ra8 Rf3 Nb6 Qc8+ Qc7 Bf7 Qd4 Bh5 Qde5 Qe6 Qb7 Rg3 Qbf7 Be2 Nf6 Rf3 g8R Ng7 Rf8 Qg4 Ng8 Rh3 Q8e6 Re3 Rfd8 Rd3 Qee8 Rf3 Ncd5 Rb3 Nc3 Qc8+
b2B4/2BBp2P/NKB2B2/PBq4b/2Q2p1N/2Nrrqq1/2Pkq3/4b3 w - - 0 1 legal: proof: e4 h5 g4 d5 gxh5 Kd7 h4 c5 f4 g5 a4 a5 b4 g4 bxa5 Nc6 d4 Qe8 e5 Qd8 e6+ Kc7 Rh3 Nb8 Re3 Kd6 Re4 dxe4 d5 Nd7 exd7 Nf6 Ra3 Nh7 Rb3 Ng5 fxg5 Kc7 d6+ Kc6 Rb4 cxb4 Kf2 Kc5 Ke3 f5 g6 b5 h6 b3 h7 Kb4 Kd4 e3 a6 g3 a5 g2 a7 b2 h5 f4 g7 e2 g8B e1Q h6 Bg7+ Kd5 Qb6 d8B Bc3 d7 Qe2 Qd3 Be1 Nc3 b1Q Bb2 Qbd1 Nf3 g1Q Be6 Qg3 Nh4 Qc7 Ba1 Bb7+ Kd4 Rb8 a8B Qc6 Bc7 Rhd8 h8N Qef3 Nf7 Qde2 Ng5 Rbc8 Nge4 Qb6+ Ke5 Qc5+ Qd5 Rb8 h7 Bc6 Bb7 Rbc8 Ba6 Ba8 Bb7 Rb8 Bg4 Rbc8 Ke6 Rb8 Qc6 Kc4 Bb2 b4 Qb5+ Kd4 Qc4+ Ke3 Bc6 b3 Ba1 b2 Bgh3 Qb5 Nc5 b1B Na6 Ba2 Bf5 Qb4 Ke5 Kd2+ Kd4 Qa3 Bg4 Rb4 Kc5 Ra4+ Kb6 Bb3 Qb5 Bf7 Qc4 Bh5 Bgh3 Qd6 Bb2 Ra3 Ba1 Rf8 d8B Rf6 Bd7 Re6 Nd1 Rae3 Bf6 Rd3 Nc3 Ree3 Bg2 Qe5 Bb5 Qfg4 Bd5 Q4f3 Bd5c6 Qc5+
4r1Rr/RNrRb2R/3PR1n1/1B1r1p1B/b2rR3/q1PP4/n6B/K4r1k w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 Bb7 exd5 Nc6 b4 Nb8 b6 Bc8 g4 h5 b5 Na6 g6 Rh6 g5 Rh8 Nc3 Nb8 Qg4 hxg4 Na2 Nd7 Nb4 cxb4 Ke2 Nb8 Kf2 Bd7 Ke1 Bc8 Kd1 Kd7 h4 Kd6 h5 Ke5 g7 Kf4 b7 Kg3 h6 f5 h7 e5 d6 a5 d3 a4 g6 a3 c3 e4 Kc2 e3 Kb1 b3 b6 a2+ Kb2 e2 Rh4 e1R Nf3 Ne7 g8B Ra4 g7 Na6 b8R Rd4 b7 Nb4 Ng5 Qa5 Bc4 Bd7 g8R Ng6 Nf7 Ba4 Rd8 Re8 b8R Be7 Be2 Kg2 Bb5 g3 Re4 Kh1 Bh5 g2 Rd7 g1R Bf4 Rf1 Nd8 Qa8 Rae1 a1R Rbb7 Na2 Bh2 Qa6 Ra7 Qa5 Ka3 b2 Nb7 b1R R1e2 Rbe1 Kb2 Rc8 Re6 Rc7 R2e5 Re3 Re4 Rae1 Rf4 Re5 Re4 Bd1 Kb1 Red5 Ka1 Qa3 Rb8 Rg8 h8R Re8 Rh7 Rh8 Rf4 Ree5 Re4 Ba4+ Re1 Rdc5 Rg8 Red5 Re4 Rc8 Re6 Re8 Re4 Rc7 Re6 Bd1 R1e4 Ba4+
bR2b3/B4rP1/1BBB2R1/pP1b1R2/2Qn2BB/2Pr2p1/1bkqr2n/5K2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 g4 Ba6 f5 Bb7 Nc3 Bc8 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Qc7 Nf2 Qd8 Ng4 hxg4 b4 Kf7 h4 d5 c3 e5 h5 a5 h6 f3 c6 g3 c7 f2+ Ke2 e4 h7 e3 b6 d4 b5 d3+ Kf3 e2 Kg2 e1R b7 d2 Rh2 Nh6 Qg4 d1B Be3 Re2 Qc4+ Be6 c8B Nd7 b8B Ra7 Bb6 Ne5 Rb1 Rd7 B8a7 Nf3 Rb4 Rd3 Rh5 Rg8 h8R Bd5 Bd7 Rg7 Bc6 Bc5 Ra4 Qd6 Rb8 Ba3 Rb4 Bb2 Ra4 Re8 Be2 Qf4 Kf1 Qd2 Rb4 Bb3 Bd1 Re2 Ra4 Nd4 Rb4 Ng4 Rh6 Ne5 Rg6 Re4 Bf3 Re2 Bg4 Nef3 Bd8 Kg8 f7+ Kh7 f8B Rf7 f6 Bc2 Bfc5 Bb3 Bb7 Bc6 Bcb6 Be8 Bc6 Ba2 Rg8 Bb3 g6+ Kh6 g7 Kg5 Rh8 Kf4 Rh6 Ke3 Rg6 Ba2 Qc5 Bd5 Qc4 Qc2 Ra4 Kd2 Rb4 Kc1 Be7 Qd2 Bd6 Rc7 f7 Kc2 f8B Rf7 Bfe7 Qe3 Bh4 Qd2 Kg2 f1B+ Kh1 Ne5+ Kg1 Bfg2 Ra4 Bge4 Ra1 Bg2 Rf1 Bh1 Rf4 Bhe4 Kf1 Nef3 Bcd7 Ba8 Bc6 Bd5 Rf5 Nh2+
1R5B/1Br3KP/Rn1rp1pB/R4p2/B1B4b/2q1Pq1n/qB2Nk1P/5b2 w - - 0 1 illegal: No possible last move
Q2Rrn2/N1b1k2N/2q4p/Qr1Pb3/5B2/4b1PQ/Pr2Nr2/1K3QNn w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 a4 f6 g6 f7+ Kd7 b3 Nf6 bxa4 Ng8 a5 Ra6 Na3 Ra7 Nb1 Ra8 f4 Nf6 f5 Ra6 h3 Ng8 f6 Ra8 Bd3 Kd6 Be4 Bg4 hxg4 Kd7 Bf5+ gxf5 d4 b5 Kd2 e5 Kc2 c5 d6 e4 d5 f4 g5 b4 g3 f3 a6 h6 g6 c4 a7 e3 g7 c3 Na3 f2 Nh3 f1R Qe2 b3+ Kb1 b2 Qf2 e2 Ng1 e1B Rh2 Qc8 Bf4 Qc6 Nb5 Bd2+ Qe1 Be3 Nd4 Rf2 Nde2 Bb6 Qf1 Bc7 Qh3+ Kd8 d7 Bfd6 f8N Be5 f7 Ke7 d8N Nd7 Rg2 Rc8 a8Q Ngf6 g8Q Ng4 Nh7 Nf8 Qg6 Rg8 Qd3 Rh8 Qb5 Rg8 Qba5 Rh8 Kc2 b1R Rh2 Rb3 Rb1 Rb5 Kc1 c2 Rb2 Rf3 Rf2 Rg8 Rf1 Nf2 Re1 Nh1 Rf1 Qc3 Re1 Rf2 Nc6+ Kd6 Na7 Qc6 Rd1 Ke7 Rf1 Ne6 Re1 Rge8 f8Q+ Kd7 Qff5 Ke7 Qf1 Nf8 Q5h3 Qd6 Kd2 c1B+ Kc2 Qc6+ Kb1 Be3 Rc1 Rcb8 Rc4 Rc5 Ra4 Rc2 Ra3 Rb5 Rab3 Rbc5 Rb8 Rb5 Rd8 Rcxb2+
1n2qNr1/N3Q3/4rN1P/NQ2nR2/QPPbQ3/2K2Bk1/1rb4r/1r1b2r1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 b4 h6 g4 Bb7 f5 Ba6 Bf4 Bc8 Ra3 Kf7 Rg3 gxf4 g5 Ke8 g6 Na6 Rg2 Nb8 Rg5 hxg5 Kd2 e5 c4 a5 h4 d5 c6 a4 h5 a3 c7 Kd7 f7 Kd6 f6 a2 g7 a1R b6 e4 b7 Ke5 Be2 g4 Kc3 f3 Nd2 Kf4 Rh4 d4+ Kb3 d3 Qe1 e3 Rh1 g3 Ne4 f2 Bf3 f1R Kc3 Bc5 f8N d2 f7 d1B Nf6 Ne7 g8Q Bf5 c8N e2 Na7 g2 h6 Rb1 Rh2 Rf2 Rh5 Qe8 Rg5 Bg6 Rf5+ Kg3 Qh7 Nec6 Qf1 e1R Ne2+ Kh3 Nd4 Ne5 Nb3 Kg3 Na5 g1R Qd3 Bb6 Qc2 Rg8 Qb3 Rh2 Qa4 Nbc6 b8Q Re4 Qc7 Nb8 Qe7 Ree2 Qed7 Reb2 Qdb5 Bf2 Ne6 Bb6 f8Q Bc5 Qfe7 Be3 N7c6 Ra6 Na7 Rb6 Nf8 Re6 Rh5 Bd3 Qe4 B3c2 Rf5 Bd4+
Q1N2kb1/2r5/2P1b1qN/PNnbb1K1/1Q2B1Q1/1RP1n1N1/rpb5/1q1Q4 w - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 e5 g4 g5 d4 h6 dxc5 e4 Bf4 e3 fxe3 Qf6 e4 Qb6 e5 Qd8 Ra3 Na6 Rg3 gxf4 g5 Nb8 g6 Bg7 Rg2 Bf8 Rg5 hxg5 Kf2 d5 Kf3 f5 e4 b5 h4 b4 c6 b3 h5 b2 e6 d4 e5 d3 e7 d2 a6 Bg7 c3 Be6 a7 Nh6 Rh4 Ng4 h6 Rh7 Ne2 Qd6 Na3 Ne3 Ng3 Na6 Nb5 Nc5 Bg2 Bf6 g7 g4+ Ke2 Bg8 Be4 f3+ Kf2 Kf7 e8N f4 e6+ Ke7 Rh5 Be5 Rf5 Qd3 Ned6 Qb1 Nc8+ Ke8 e7 Be6 Qc1 d1B g8N Bc2 Qd1 Rg7 h7 Rf7 Kg1 f2+ Kh2 f1B h8Q f3 Qh3 f2 Nh6 Bfc4 Qh5 f1B Qg5 Rb8 a8Q Bcd5 a5 Bfc4 Qf4 Rb7 Qff3 Rc7 Qfe2 Ba2 Qc4 Rf8 Qb4 Bg8 Rg5 Rf4 Na3 Bg7 Qbb7 Bde6 Bd3 Ng2 Qb3 Na4 Rb5 Nc5 Nh5 Bd7 Kg3 Ra4 Rb4 Bf5 Nb5 Bd4 Qa3 Bad5 Rb3 Bd7 Qb4 Ra2 Bf5 Bh8 Kh2 g3+ Kh3 Ne3 Kh4 g2 Bh7 g1Q Bd3 Qg7 Ng3 Qg6 Qbg4 Na6 Be4 Qd6 Kg5 Be5 Nhf5 Kf7 Nh6+ Kg7 e8Q Qg6+ Kh4 B7e6 Qe7+ Bef7 Qb4 Nc5 Qb8 Kf8 Qa8 Qh7 Kg5 Bfe6 Qdd4 Qf7 Qdd1 Qg6+
3nb1Nq/Q1Q3K1/Q3Q1P1/3Br1P1/1bNp2P1/5Nn1/b1N2rk1/R4nqn w - - 0 1 illegal: No proof kernel
QK4B1/5Rb1/2bpNrN1/rk4nN/1p1Q3b/PQ1nP1P1/7q/rN1n1Q2 w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 g5 dxc5 e5 f4 Ra6 fxe5 Ra8 Bf4 gxf4 g3 h5 a3 h4 Ra2 h3 Rb2 Qe7 Rb3 Nc6 Rf3 Nb8 Rf2 Qd8 Rg2 hxg2 Kf2 b5 Kf3 f5 h4 d6 c4 Kd7 e6+ Kc6 e7 b4 e8N Ra7 e3 Qd7 h5 Qe6 a6 Qh6 Ne2 g1B Qb3 Bb7 Ng7 Nf6 Ne6 Bg7 Rh3 Ra8 a7 Nbd7 Rh2 Rh7 Rf2 Nd5 Bh3 Rf8 a8Q Nc3 Bf1 Nd1 Bg2 Qg6 h6 Rf6 Qf8 Rh8 h7 Qh6 Qa8 Rb8 h8N Qh2 Ng6 Rh8 Rf1 Bf2 Qf8 Ba8 Bh3 Be1 Qf7 Kb7 c6+ Kb6 c5+ Kb5 Bg2 Rb8 Rf2 Rb7 c7 Bc3 c8Q Ra7+ c6 Nc5 Qh8 Ra5 Rf1 Bb7 Qa8 Bb2 Qa7 Nd3 Qd4 Bc8 c7 Bd7 c8Q Bc6+ Qe4 Be5 Qa8 Bd4 Ng1 Bb6 Nh3 Bd8 Qf8 Bd7 Qd4 Bc6+ Ke2 f3+ Kd2 f2 Bd5 Nc3 Nhf4 Nd1 Nh5 f4 Ke2 Be7 Kf3 Bd8 Ke4 f3 Re1 f1R Re2 Be8 Rf2 Bc6 Qe5 Rf7 Qd4 Be8 Nc5 Bh4 Nd2 N1b2 Be6 Rf4+ Kd5 Ra1 Nb1 Nd1 Bg8 Rf5+ Ke6 Bc6 Rf1 f2 Qf7 Bg2 Kd7 Bc6+ Kc7 Rf3 Kb8 Rf5 Re1 f1N Ne6 Nd2 Rf1 Ne4 Qff6 Rf2 Qf3 Ng5 Qh1 Rc2 Rf7 Rf2 Qf1 Rf6
4kB2/P3r1Qb/K1P1B3/p2Q3p/1R1bp1Q1/qBq2n2/q2BP2r/1bQ3N1 w - - 0 1 legal: proof: g4 c5 f4 g5 fxg5 c4 h4 c3 g6 Nf6 g7 Ng8 g5 Na6 g6 Nc5 dxc3 Ne6 c4 Ng5 c5 Qb6 Kd2 Qc7 Ke1 Qd8 hxg5 a5 b4 Rb8 a4 Qb6 b5 Qc7 Ra2 Ra8 Rb2 Qb6 Rb4 Qd8 Nd2 b6 Nc4 axb4 a5 Nf6 a6 Ng8 Na5 bxa5 Kd2 f5 Kd3 d5 c4 e5 c6 d4 b6 b3 a7 f4 c7 b2 c5 b1B+ Kc4 d3 Kb5 d2 c6 e4 b7 f3 b8B f2 Bh3 f1Q Be6 Nh6 g8B Bc5 g7 Qd6 g6 Qf6 Bb3 Qdf8 Bge6 Nf5 g8Q Qc3 g7 Bd4 Qc2 d1Q Bd2 h6 Qc1 Qdc2 Rh5 Bd7 Ka6 Nh4 Rb5 Qa2 Rb4 Nf3 Qh7 Qfc5 g8Q+ Qf8 Qhg7 Rh7 Bh3 Bf5 Qd5 Rh8 Bg4 Bh7 Be6 Qfc5 Rc4 Qca3 Ra4 Rf8 Rb4 Rf7 c8Q+ Ke7 Qb7+ Ke8 Qg4 Re7 Bbf4 h5 Bh6 Rd8 Bf8 Rd6 Bc8 Rf6 Be6 Rg6 Qc7 Rf6 Qcg3 Rf4 Qg7 Rh4 Q3g4 Rh2
2N1RQQ1/2Pb4/4ppN1/qnn1P3/4RR2/Rb1r3p/bRR1PK2/1q1k4 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 a5 dxc5 Ra6 f4 Re6 b6 Re5 fxe5 Bb7 Nh3 Ba6 Ng1 Bc8 b4 g6 g4 Ba6 h4 Bg7 g5 Qc8 b5 Nf6 Ba3 Bf8 Bb4 axb4 Bh3 Ng8 Bg4 Bh6 Bf5 gxf5 g6 Bg5 hxg5 Qd8 Qd2 Bb7 Qd1 Bc8 c4 d5 c6 h5 b7 d4 g7 b3 b6 h4 c7 Kd7 c5 Ke6 g6 Kd5 c6 Ke4 Ra6 Ke3 Ra2 h3 Nc3 d3 Ra3 b2 Na4 b1B Nf3 f4 Rf1 f6 Nh4 Bd7 c8R Na6 b8R f3 b7 e6 Nb6 Ne7 g8R Ba2 g7 Nd5 Re8 Nc5 g8Q Nc3 Ng6 Nb5 Qa4 Rh4 Qb4 Rd4 Rba8 Qc7 b8R Qa7 Rc7 Qa5 Nc8 Rd5 Rf2 Rd4 Ra4 d2+ Kf1 d1B Ra6 Nb3 Qbf8 Rd3 Re4+ Kd2 Kg1 Bc2 Rf1 Nc5 Kf2 Bcb3 Rbb7 Qb4 Ra3 Qa5 Rb8 Na7 Rbb4 Nb5 Rb1 Kc2 Rb2+ Kc1 Rb7 Kd1 c7 Rd2 Rc2 Rd6 Ke3 f2 Rf4 f1Q Rbe4 Qfe1 Rb8 Qeb4 Kf2 Rd3 Rb7 Ba4 Rb6 Qb1 Rb7 Nc3 Rbb4 Nb5 Rbb2 B4b3
1b2nRK1/rn2nNn1/n5r1/P1n2Qr1/N3P1N1/2RN3P/2R1Nq2/1k1bR3 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 g5 bxa5 Ke7 c4 Ke8 Bh3 Be7 Ba3 Bf8 Bc5 Ne7 Be3 Ng8 Bf4 gxf4 g5 d5 Bg4 hxg4 cxd5 Ba3 Nh3 Bd6 Ng1 Bf8 Kf2 Kd7 e4 c5 a4 f5 d4 b5 d6 Kc6 e6 f3 Ke3 f2 Kf4 f1N Ke5 g3 e7 c4 e8N g2 d5+ Kc5 d7 Kb4 Ke6 f4 Kf7 f3 a6 c3 d6 c2 g6 Kb3 h3 Kb2 g7 c1N a5 b4 a7 f2 Qd3 b3 Qd1 Rh6 Ra4 Qb6 d8R Nf6 g8R Ne3 d7 f1N Rd4 Nc4 Nd6 Ne8 Qf3 Nfe3 Nd2 Na6 Rg7 Rg6 Nf5 Ncd6+ Kg8 Nd3 Nh6 Nef5 Ng4 Ndc5 Ne2 g1R Rc4 Ndb7 Rc3 Bd6 Nc4+ Kb1 Nce5 b2 Nd3 Bb8 Qf2 Rg5 Rg6 Nfg7 Qf5 Qf6 Rc2 Qd4 Rc6 Qf2 Rc3 Ned6 Rf8 Nde8 d8N Be6+ Kh8 Bb3 Nf7 Bd1 Kg8 Rg3 Re1 Rg6 Nge5 R3g5 Ng4 Ka2 Ng3 b1N Ne2 Ka1 Rc2 Nc3 Rc7 Nd5 Rc8 Be5 Rc3 Kb1 Rc7 Rd8 a8N Rd7 Nb6 Bh2 Rc6 Bb8 Na4 Ne7+ Kh7 Nce6 Rc2 Rc7 R6c3 Nec5 Kh8 Nd8 Kh7 Ra7 Kh8 Ndb7 Kh7 Nc6 Kg8 Ne7+
R1b1nn2/2b2K1N/N1PP1N1k/1RnnQ3/1pP2N2/1q3N1n/2N5/1rr1Qb2 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c5 b4 Ra7 bxc5 Ra6 Ba3 Ra8 c3 d5 Bd3 d4 Bc2 d3 Bb4 dxc2 Kf1 axb4 Ke2 Rh6 Ke1 Rh8 Ke2 Kf7 Kf3 c1N Kg4 b5 Kg5 e5+ f6 g6 d4 e4 f4 e3 a4 e2 h4 e1N f5 b3 h6 b4 c4 b2 c6 Nb3 h5 Na5 d5 Nb7 h7 Be6 d6 Bd7 a5 Nd3 a6 Nf4 a7 Nc5 h6 Qb6 Rh5 Nd5 Nf3 Bc8 Na3 b1B Nc2 Nbd7 Qe1 Be7 Ra5 Bd8 Rb5 Rb8 a8N Nf8 Nc7 Ra8 Na6 Bc7 Rh2 Qa5 Re2 Qa2 Re8 Qb3 Rd8 Nge7 Re8 Rg8 h8Q Rg7 h7 Ng8 Ncd4 Bd3 Nc2 Bf1 Rd8 Ra7 Re8 Bb7 Rb8 Bc8 Ra8 Nge7 Kh6 g5 Kh5 g4 Kh6 g3 Kh5 Ke8 f7+ Kd8 f6 g2 Kh6 g1N Kh5 Rg3 Qg7 Rg2 h8N Nf5 Ng6 Nh3 Nf4 Rg1 Qgg3 Ng7+ Kh6 Nfd7 Kg6 Ne8 f8N Rh1 Nh7 Nf8+ Kf7 Rg1 Nb8 Ra1 Na6 Rb1 Qe5 Be2 Qf2 Rgc1 Qe1 Bd3 Kg8 Be2 f7 Bf1 Nf6 Ng7 Ng4 Nfe6 f8N Ke8 Kh8 Kf7 Nf6 Ne8 N8h7 Nf8 Ne6 Kg6 Kg8 Bd7 Nf4+ Kh6 Kf7 Bc8
1b4n1/P3n3/rbN1K3/4bbN1/P7/NPBBNNQr/Q4pb1/2Nq1n1k w - - 0 1 illegal: No proof kernel
2r1r1R1/NP5R/N4R1N/N1Q3R1/nn1K2pn/b4rP1/2bnk1P1/1q1R1b2 w - - 0 1 legal: proof: c4 e5 a4 d5 cxd5 b5 axb5 Qh4 d6 Qg3 hxg3 Bg4 Nh3 Bf5 Ng1 Bc8 e4 f6 d4 Bd7 d5 Bh3 Be3 Bc8 Bd4 exd4 e5 f5 Bd3 Nc6 Bc2 Nb8 Be4 fxe4 Ke2 Kd7 b4 g5 f4 h5 f5 a5 f6 c5 b6 c4 f7 c3 b7 a4 b5 e3 Kd3 g4 b6 e2 Qf1 e1R Ne2 c2 Nd2 c1N+ Kc4 d3 Rh4 a3 Rb1 a2 Ra1 Na6 b8R Nh6 Qf3 Nf5 Qf2 Nb3 Qc5 Rf1 Nc3 Rf3 Rd1 a1N Nb5 Nc2 Na7 Ncb4 Rhh1 h4 b7 h3 Ne4 Be7 f8R d2 Rf6 h2 Ng5 Bf8 Nf7 Nh4 Nh6 Rg8 Qe3 Nac5 e6+ Ke8 d7+ Ke7 d8N Kd6 e7+ Be6 e8R Na4 Qc5+ Ke5 Ndc6+ Ke4 Na5 Bd6 Re7 Re8 Rh7 Bf8 Rhf1 h1Q Rf2 Bd7 d6 Qe1 Rd8 Rc8 Rf5 Be7 Rg5 Bf5 d7 Bd6 Qc6+ Ke3 Rf1 Ke2 Qc5 Rc6 Rb8 Rcc8 d8N Bc2 Ne6 Be7 Nc7 Bf8 Rc1 d1B Na6 Nd2+ Kd4 Bd3 Ra1 B1c2 Ra8 Qb1 Rb8 Rfe3 Rf6 Rf3 Ra8 Kf2 Rb8 Bf1 Ra8 Ke2 Rb8 Qb3 Rd1 Qb1 Rff7 Ree3 Nb3 Rc7 Na5 Nd3 Qc3 Ba3 Rf6 Nb4 Rbg8 Re8 Qc5 Rcc8
5b2/K1RBn3/4P3/1rBB4/PPb2bBb/kpqq1r1R/N4Rn1/R1r1R3 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 g5 fxe5 b5 h4 a6 hxg5 a5 b4 a4 Qb3 axb3 Na3 Ke7 Nc4 bxc4 Ba3 Kd7 Bc1 Ke8 Kf2 Ke7 Ke3 h5 Kd4 f5 Kc5 f4 g4 h4 d4 h3 e4 f3 a4 h2 e6 f2 g6 c6 g7 c3 d6+ Kf6 d5 Ke5 e7 c2 e8B Be6 g5 Ne7 g8B Qc8 Kb6 Kd4 d7 Kc3 d8R c5 d6 c4 d7 Rh5 e5 Ng6 Be2 f1Q Be3 Kb2 Bg4 c1B Ne2 c3 Bc5 c2 Nc3 Nf4 g6 Qd3 g7 Ng2 Re1 h1R Na2 Bc4 Bd5 Bg5 g8R c1B e6 Bcf4 Rh8 Nc6 Rh6 Ne7 Rf6 Rb8+ Ka7 Qc6 Rc8 R5h3 d8R Ka3 Rc7 Rb5 Bd7 Rf3 Rh6 Rhf1 Rh3 Bh4 Re8 Bg7 Rh8 Bf8 Rh5 Rg1 Rhe5 Rh1 R1e2 Rc1 Rf2 Qd6 Re4 Qe5 Re1 Qec3
B4nn1/Np2P2r/N1qbP3/1N2bnqn/2k2P2/3r1BQB/2bB4/5NBK w - - 0 1 legal: proof: d4 a5 g4 c5 a4 h5 gxh5 e5 dxe5 Ne7 b4 Nec6 bxa5 Ne7 Ra2 Ng8 h4 f5 e4 Rh7 e6 Rh6 e5 Rh7 Rb2 Rh8 Rb4 cxb4 Rh3 Be7 Re3 Bf8 Re4 fxe4 f4 Ke7 Kf2 g5 Kg2 d5 c4 g4 c5 g3 h6 b3 h7 d4 c6 d3 a6 e3 h5 d2 a7 b2 c7 e2 h6 e1Q a5 Na6 Qb3 d1N Na3 b1N Kh1 Nc5 a6 Bd7 c8B Bc6+ Bg2 Qd6 Bd2 Nd7 Bf3 Ne3 Nb5 Be4 Qd3 Rb8 a8N Qc6 a7 Nc3 Nac7 Ncd5 a8B Nf5 Na7 N5f6 Na6 Nh5 Qc3 Qe3 Ne2 Qec5 Qe3 Bg7 Qa3 Nf8 Qe3 Ke8 e7 Kf7 Qf2 Bc2 Bd7 Nd4 Bh3 Nf5 Qe3 Ke6 Qf2 Kd7 e6+ Kd6 Qg2 Rd8 Qh2 Be5 Qf2 Ngf6 Qg2 Rg8 h8N Rg7 h7 Ng8 Qf2 Be4 Qh2 Kd5 Nf7 Kc4 h8B Bc2 Qg1 Rh7 Nd6+ Kd3 Ndb5 Kc4 Bf6 Rd3 Bg7 Bd6 Bd4 Qe5 Qf2 Qf6 Qe1 Qg5 Bg1 g2+ Kh2 Qc8 Ng3 Qc6 Nf1 Be5 Qg3 Bd6 Bd4 g1B+ Kh1 Be3 Bb6 Bd4 Bc5 Bb2 Bg1 Bbe5
r2n1bq1/R1p2q2/1R2RP2/1nrNN1Q1/n1PNnPnK/8/2n5/k1NN1R2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h6 axb5 h5 g4 h4 Bf4 Qf6 Bg3 hxg3 Qd4 Qe7 Qd1 Qd8 e4 f5 e6 Bb7 e5 Bf3 e7 Kf7 Bd3 Bd5 Be4 fxe4 Ra4 Be6 Ra1 Bf5 gxf5 Rh3 Ra6 Rh5 Ra1 Rh8 e8N g5 b4 a5 h4 d5 f4 g4 b6 g2 Kf2 g3+ Ke2 a4 h5 e3 Kf3 d4 Kg4 e2 f6 Qd7+ Kg5 Ke6 h6 Kd5 b5 Kc4 b7 e1N h7 d3 e6 d2 e7 a3 b6 a2 Ne2 g1N Nbc3 g2 Nc1 Nh3+ Kh4 g1Q Qh5 d1N Ng7 Ng5 e8R Nh6 Nf5 Nb2 Nd1 Ne4 Ne7 Nc6 b8N Nd8 b7 Qg8 Nbc6 Ng4 b8R Qdd5 c3 Qdf7 Rf1 Nc2 Rb6 Na3 Nd4 Nb5 Qh6 Kc5 c4 Kb4 Nc8 Ka3 Ree6 Nd2 Ne7 Ne4 Rb1 a1N Ra6+ Na4 Ra7 Nbd6 Rb6 Nb5 Qg6 Nc2 Qh6 Qgg6 Qg7 Rg8 h8N Qh7+ Qh6 Rg5 Nhg6 Rc5 Nd5 Qhg7 Qg5 Qgg8 Ncb3 Ka2 Ne5 Kb1 Nc1 Ka1
k1B1bq2/2Br3n/3n1rrN/2KP1B1p/rNP1Bp2/N3PRN1/2q5/4bB2 w - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 fxe5 c5 h4 Qa5 hxg5 Qc7 b6 Qd8 b4 Nf6 c3 Ng8 b5 d6 Qb3 d5 c4 d4 Qc3 dxc3 Ra4 Nh6 Rb4 cxb4 Rh2 Ng8 Rh5 Qd7 Rh1 Qd8 Kf2 Kd7 Ke3 h5 Kd4 a5 g4 f5 g6 a4 b7 a3 e6+ Kd6 e7 Kc7+ Kc5 a2 d4 a1Q b6+ Kd7 g7 c2 d5 b3 g5 b2 g6 Nc6 b8N+ Ke8 b7 Rh7 Nd7 Nd4 b8N Nf6 g8B Qa4 g7 Nb5 Na6 Nd6 Na3 b1R Be6 Rb6 Ne5 Bd7 Bf4 c1R g8B Qc2 Nb4 Ra4 e3 Rg7 Ng4 Nh7 Be5 f4 Bf5 Rb1 Rh4 Rg6 Ne2 Bb5 Be4 Kd7 e8B+ Kc8 Ng3 Kb7 Bd7 Ka8 Bdf5 Be8 Nh6 Be7 Rh2 Bh4 Rh3 Qe7 Bc8 Qf8 Bge6 Rb7 B6f5 Rd7 Ne2 Rb2 Rf3 Be1 Ng3 Rb1 Bf6 Ra1 Bd8 Rf6 Bc7 Rd1 Kc6 Rd2 Kc5 Rg2 Ne2 Rgg7 Ng3 Rgg6
3b1B1K/1B2N1p1/Bkpr2q1/R4P2/nrRP2q1/R1r2bn1/3PB2R/3r2B1 w - - 0 1 legal: proof: g4 d5 b4 f5 gxf5 a5 bxa5 e5 f6 d4 c3 Bb4 cxd4 Bf8 f4 h5 f5 Rh6 Nc3 Ra6 Nd5 Rh8 Nf4 exf4 Qb3 Ra7 Qh3 Ra8 Qg4 hxg4 Kf2 Kd7 a4 Kc6 h4 b5 e4 b4 h5 f3 Kg3 f2 Kh4 b3 Kg5 b2 Kg6 b1R a6 g3 a5 g2 e5 Qd7 f7 Rb7 e6 Rh7 a7 Nh6 e7 Ng8 e8B Na6 h6 Nb4 a6 Be7 f8B Kb6 Nf3 c6 Ra3 Nd3 Ne5 Rab8 a8B Rc7 a7 Nb2 Ba6 f1R B8b7 Rd1 a8R g1Q+ Kf7 Qg5 Ng6 Bd8+ Ne7 Nf6 Re1 Nh5 Kg8 Ng3 Bh5 Qf4 Bhe2 Qe8 Ra5 Na4 Ba3 Rd7 Bd6 Qg6 Rh1 Rb1 Rc1 Qfg4 Rc4 Rd1 Bf4 Rd6 Be3 Bd7 Bg1 Be8 Bb5 Nc5 Ra3 Na4 Ra5 Q6g5 B5a6 Bh5 Ra2 Q4h4 Ra1 Bf3 Ra3 Qhg4 Kf7 Rh8 h7 Rg8 h8R Qh6 Rh7 Rh8 Rd3 Qhg5 Rh2 Rh3 Kg8 Qg6 Ra3 Kc7 Bc8 Rb4 Bcb7 Kb6 Rg2 Rh1 Rh2 Rc1 Kh8 Rc3 Bf2 Rhc1 Bg1 Rd1
3bR1N1/N2b1r2/1r1P3n/1pQN3b/1r2N1Q1/K1pn2P1/2P3kn/NN1R1r2 w - - 0 1 legal: proof: e4 d5 exd5 a5 f4 e5 b4 e4 bxa5 Qe7 Qg4 Nf6 Qd1 Qe5 fxe5 Ng8 g3 g5 Ba3 h5 Bg2 h4 Bc5 h3 Be3 hxg2 Bf4 gxf4 h4 Kd7 d4 c5 Kd2 b5 Kc3 f5 Kb3 e3 a4 e2 d6 Kc6 d5+ Kb7 h5 e1R e6 f3 e7 f4 e8N c4+ Ka3 f2 a6+ Kb6 a7 Kc5 d7 f1N d8N c3 d6 f3 h6 f2 a5 Bd7 h7 Ne3 a6 f1B Qg4 Kd5 Ne2 g1R Nd4 Nc6 Nf6+ Ke5 Ne4 Nh6 Nb3 Rb8 a8N Nb4 a7 Be2 Nb6 Nd3 a8Q Be7 Nd5 Rgf1 Qa7 Rf7 Qc5 Ref1 Rh2 Bd1 Re2 Rb6 Re1 Rhf8 h8N R1f4 Re2 Nf1 Re1 Bf3 Rd1 Nh2 Ra2 R7f5 Na1 R8f7 Nc6+ Ke6 Qb4 Bd8 Na7 Ke5 Qc5 R5f6 Qh4 Kf5 Ng6 Bh5 Nge7+ Ke5 Qh3 Rg4 Ng8 Rf1 Qg2 Kf5 Qgf2+ Rf4 Qfd4 Kg4 Qg7+ Kf3 Qg4+ Kg2 Rb2 R7f6 Rb4 Rf7 Ra4 Rb8 Ra6 Rb7 Rc6 Rb6 Rc8 Be7 Re8 Bd8 Ned2 Rc4 Ne4 Rb4
q2R2Bk/np3BR1/6Br/q5p1/PP4RB/2K1bb1r/1RPN2p1/4R1nn w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 c5 d4 f5 dxc5 a4 gxf5 Qe7 Qd4 Qf6 Qg4 hxg4 Nd2 Qd8 Nb3 axb3 Kd2 Kf7 a4 d5 h4 d4 e4 g3 f6 d3 c6 b2 h5 b1Q h6 g2 c7 g6 e6+ Ke8 e7 Kf7 e8B+ Ke6 e5 Qb3 h7 Ra6 f7 Nf6 Nf3 Bc5 f8R Ng4 Ra2 Qbd5 Rg8 Nc6 Rb2 Na7 Rg7 Be3+ Kc3 d2 Bc4 Nf2 Re1 Nh1 Bf7+ Kf5 e6 Kf6 e7 g5 e8B Bg4 c8R Q5a5 Bce6 Rb6 Rc4 Qa8 Re4 Bh5 Rg4 Ra6 Bg6 Rd6 Bg8 d1N+ Kc4 Nc3 Bef7 Rb6 Bd2 Ne2 Kb3 Ng1 Kc3 Bf2 Bf4 Be3 Bg3 Ra6 Nd2 Re6 Rh4 Bf3 Rc4 Re4 Rd4 Rh4 Rg4 Rh3 Bh4 Qb5 Bd5 Qa5 B8f7 Re8 h8R Re6 Rd8 Rd6 Bg8 Ra6 Rgd7 Rd6 Bdf7 Kg7 Be6+ Kh8 Rg7 Rb6 Bef7 Ra6 Bd3 Rh6 Bf5 Bb6 B5g6 Be3
5n1q/3p1p1q/n1QBBP2/2BP2rB/1Qn1Rbp1/B5PK/B1rR4/k3b1q1 w - - 2 3 illegal: No possible last move, all moves rejected
4nR2/kb5P/r3q1R1/QK1P1R1N/2Q3nq/1b2NP2/b3rn2/NN3nR1 w - - 0 1 legal: proof: h4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 hxg5 h4 g6 h3 g3 Bh6 e4 e5 d4 f6 d6 Bg5 d5 Bh4 gxh4 Nd7 Bd3 Nb8 Be3 f5 Bd4 exd4 e5 Bd7 Bc2 Bc8 Be4 fxe4 Kd2 Kd7 b4 a5 g7 c5 b6 e3+ Kd3 a4 Kc4 e2 b5 e1Q b7 h2 b6 a3 h5 a2 h6 d3 h7 d2 Qa4+ Nc6 b8R d1B b7 Qh4+ Kb5 c4 Nf3 c3 Nfd2 c2 Nc4 c1N Qa5 Bb3 Rf1 h1B Ne3 Nf6 g8R Ne8 Rg6 Be4 Qc3 Ra3 Qc4 Ra6 e6+ Kd8 d7 Kc7 d8N Nd3 e7 Rg8 Ra8 Qe2 b8N Bb7 Nd7 Qe1 Nc5 Nce5 Rfg1 Ng4 f3 Ndf2 Nde6+ Kd6 Ng7+ Kc7 Ra7 Kb8 Nh5 Bec2 Ng2 Qe6 Ne3 Rc6 Ra4 Ra6 Rb4 Ka7 Ra4 Nef6 e8Q Rf8 Qc6 Ne8 Qc7 Rf5 Qa5 Re5 Ng2 Re2 Ne3 Ne5 R1g5 Neg4 Rf5 Bd1 Na3 Bdc2 Rg1 a1N Nb1 Ba2 Nb3 Bd1 Rb4 Nc2 Na1 Ne5 Ng2 Ne3 Rb2 Nf1 Ne3 Neg4 Rc2 Ngh2 Rc1 Bc2 Re1 Bcb3 Rf8 Qc8 R1g5 Qe6 Rgf5 Nhg4 Rd1 Ng3 Rg1 Nf1
2bB4/3qP1Rn/1q3R2/2rQ2BR/pq1rBq2/3K1BP1/6P1/r1k2nQR w - - 0 1 legal: proof: c4 b5 b4 e5 a4 c5 axb5 d5 cxd5 e4 b6 e3 fxe3 Bd6 e4 Be7 e5 Bf8 b5 g5 Na3 Qd6 Nc2 Qd8 Nb4 cxb4 Nh3 Qd6 Nf4 gxf4 Ra6 Qc7 Ra1 Qd8 Qa4 Be6 Kd1 Bc5 Kc2 Bf2 Kd3 Bc5 Qd1 Bc8 Kc2 Bf2 Kd3 Nh6 Ke4 Bh4 Kf3 Bg5 Kf2 Ng8 Kg1 Bh4 Ra5 Be1 Ra1 Bg3 hxg3 Qg5 Kf2 Qe7 Ke1 Qd8 e4 Ke7 Ke2 h5 d4 a5 b7 f5 b6 b3 d6+ Ke6 d7 b2 Qd3 b1Q Qc3 f3+ Ke3 f4+ Kd2 h4 Qe3 f2 Qc3 a4 Qe3 f3 Ra3 h3 Be2 f1Q Qg1 f2 Bf3 Nc6 b8R h2 b7 Qdb6 d8Q Rh5 Rb3 Rf5 Rb5 Qd1+ Ke3 f1Q Qd5+ Ke7 e6 Kf6 e7 Ne5 e8B Qb4 Rc5 Kg5 Bg6 Nf6 Rc6 Nh7 Rf6 Rf4 Bf5 Ra5 Ra8 Rg4 b8R Rc5 Ra5 Qfc4 Bd2 Qcc1 Rba8 Nc4+ Kd3+ Ne3 e5 Rf4 R8a7 Nf1 Bh5 Qg4 Be4 Qh3 Bhf3 Qd7 Rf5+ Kg6 e6 Rg4 Bg5 Qf4 Qb7 Rh4 d5 Rg4 d6 Rh4 Bd5 Rg4 Rf7 Rh4 Rg7+ Kf5 e7 Ke5 R7a6 Rg4 Ke2 Rh4 Bde4 Rg4 Kf2 Kd4 Ke2+ Kc3 Qd5 Kb2 Kd3 Kc1 Qf2 Qdd8 d7 Qe8 d8B Qd7 Rg1 h1R Qfd4 Rh6 Rh1 Rgh4 Qg1 Rhc6 Qdd4 Rc4 Rf5 R6c5 Qd5 Rh6 Ra5 Rhc6 Rf6 Re6 Bg6 Re2 Bge4 Ra2 Ra6 Ra1 Rfh6 Qb8 Raf6 Q8b6 R6h5 Rd4+
2r1b2N/4P3/N2r1b1b/qQQ1PKR1/1n2p3/kN2P2n/rN1Q1r2/1RQ1n3 w - - 0 1 illegal: No proof kernel
qQq1Q2K/RQ6/2Qb1R2/5b1n/1PR2q2/P3n1pP/1b3k1N/q1Nr1r1R w - - 0 1 legal: proof: g4 a5 e4 f5 exf5 h5 gxh5 b5 c4 d5 cxd5 a4 b3 a3 Bb2 axb2 Bc4 bxc4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 Kg6 e5 f4 c5 f6 c3 f7 e4 h6 c2 h3 c1Q d6 c4 d7 c3 b4 c2 f5 e3 h7 e2 f6 e1Q Nf3+ Ke4 d4 Ke3 d5 Bb7 d6 Qed2 Nc3 b1Q Ne2 Nc6 Nh2 Na5 a3 Qb8 d8R Bc8 d7 Bd6 f8R Nc4 f7 Nf6 Ra2 Qc3 Qd5 Nh5 Qb7 Qba1 Rb2 Rg8 h8Q Kf2 Kh7 g5 Qf6+ Qf4 Nc1 g4 Rde8 g3 d8Q Ne3 Re7 Ra5 Qe8 Qa8 Rb1 Rg4 Kh8 Bf5 Rb3 Qcc4 Rc3 Qcc8 Rc4 Rg7 Qe6 Rd5 Qe4 Rd3 Qbc6 Rd4 Ra7 Rd1 Q4e7 Rf1 Qeb7 Rd1 Rg8 Rf1 f8Q Rf7+ Rg7 Rd1 Qg8 Rf6 Rg6 Rf8+ Rf6 Rf7 Nb3 c1B Qgf8 Bb2 Nc1 Rd7 Qg8 Rf1 Qgf8 Bc7 Qg8 Rdd1 Qgf8 Bd6 Qg8 Qd7 Qeb8 Qd8 Qge8 Qc8
1Bb1rnBQ/2R2n2/P3b3/b2Q4/p2q1KPB/1R1RR1BP/3b4/3q1krq w - - 0 1 illegal: No proof kernel
5k2/P1Rpr3/1n1r3R/2Bq1NN1/1P3Pn1/PQ6/1b3r2/NbKB1R1q w - - 0 1 legal: proof: h4 c5 b4 f5 d4 cxd4 g4 e5 f4 a5 bxa5 h5 gxh5 g5 hxg5 b5 c3 b4 cxb4 exf4 e3 f3 Na3 f4 exf4 Nc6 Nb1 Nb8 Kd2 f2 a3 d3 h6 Ne7 g6 Ba6 g7 Qb6 g8N Qc7 h7 Nc8 Rh6 Bg7 Be2 f1Q Ne7 Qb7 Qb3 Bb2 Nf5 Nb6 Bd1 Qd5 Nf3 Nc6 Ng5 Ne5 Rc6 Kf8 Rc7 Bc4 a6 Ng4 a7 Rg8 h8R Re8 Rh4 Re7 Rh5 Qfh1 Rh6 Be5 Bb2 Ba6 Kc1 d2+ Kc2 Rg6 Bd4 Rd6 Bc5 Bd4 Bf3 d1R Nd2 Rde1 Bd1 Rf1 Kc1 Bc3 Qb2 Rf2 Nb3 Bf6 Rb1 Bg7 Na1 Bd3 Qb3 Bd4 Rb2 Be4 Re2 Bc2 Re1 Bb1 Rf1 Bb2+
2nb2b1/1bK1P2r/2RQP3/3b1n1N/1B4Rq/P4R2/3rp1P1/NB1n1B1k w - - 0 1 illegal: No possible last move
1N3n1K/2Q5/1B2PPqP/2N2bB1/1P1N1Bkb/2b4p/R5q1/1rR1nq1q w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 d4 Bf8 e4 f5 Bd3 Nf6 dxe5 Ng4 e6 Nf6 e5 Ng8 Be4 fxe4 g4 g5 h4 gxh4 Qe2 h5 Kd2 h3 Qd1 a6 Ke1 h4 Be3 Rh5 gxh5 a5 Bh6 Ra6 Bc1 Rd6 Kd2 Rd7 Ke2 Rh7 Ke1 Rh8 Ke2 Ke7 Ke3 c5 Kf4 h2 Kf5 a4 Kg6 c4 b4 a3 f4 a2 f5 e3 b6 c3 b7 e2 Qf1 e1B Qf4 c2 Nf3 Na6 b8B Qd6 Nc3 Nc5 Na4 Bg7 Nd4 Nd3 Nc5 Nf6 h6 h3 Ba7 Rf8 Bb6 Nd7 Kh7 Bh4 Be3 Bh8 Rhc1 h1Q Qh2 Qg2 Bf4 Ne1 Qg3 Ke8 e7 Kf7 e8N Qf6 d6 Qe6 Rab1 a1Q Nf6 Qa6 Ra1 Qaf1 Ra2 Qfh1 Rca1 c1Q Qh2 Qcc4 Rc1 Qcf1 Qg3 Rg8 Qc3 Rg3 Qc2 Rb3 Qc3 Nb8 d7 Rb1 d8B Qec6 Nfd7 Qd6 Nf8 Nd7 Bdg5 Bf6 Na6 Ke7 Nfe6 Nf8+ Kg8 Qdc6 Nb8 Qe8 Ng7 Qg6 Kh8 Kf7 Qc6 Be7 Nge6 Bc5 Nf3 Bd4 f6 Bc3 Nc5 Bf5 Qc8 Qh5 e6+ Kg6 Qd7 Qhg4 Qc7 Kh5 Nd4 Q4g3 Bd2 Qg4 Bgf4 Qg6 Bde3 Kg4 Bg5 Bc2 Bef4 Bf5
1K2k1N1/2P5/3b1npP/6n1/1n2p1BP/R1Q2p2/1PpB1bn1/1Br1RN1R w - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 c4 d5 Kd2 dxc4 Ke1 h5 gxh5 c3 Qc2 c4 Qb3 Qd5 Qd1 Qd8 e4 e5 f4 a5 f5 Be6 fxe6 Qd5 exd5 Ra7 Kf2 Rc7 Ke1 Rc5 dxc5 Kd8 Na3 Ke7 Nb1 Ke8 Ke2 f5 Kf3 c2 h4 e4+ Kf4 c3 Ke5 f4 c6 a3 d6 f3 e7 a4 h6 g6 d7+ Kf7 Kd6 a2 Kc7 a3 d8R Nf6 Qe1 Nbd7 Ra8 Nh7 Nh3 Ng5 Nd2 Nf6 Kb8 Ke8 Nf4 Rh7 Rb1 a1N Nd5 a2 Bd3 Rf7 Nf1 Rg7 Be3 c1B Ra7 Nc2 Bd2 a1N Ra3 Nb4 c7 Nac2 Rba1 Ne3 Bb1 Ng2 Qe3 c2 Qc3 Ne1 Nf4 Ng2 Nh5 Kd7 e8B+ Ke7 Bf4 Be3 Bd7 Bf2 Bg4 Ke8 Bd2 Rd7 Ka8 Bd6 Kb8 Nfh7 Nf6+ Kf8 Nd5 Ke8 Ne7 Nf6 Ng8 Bh2 Ba2 Bd6 Re1 Rd8+ Kb7 Ra8 Bb1 Ra5 Kb8 Rd5 Be3 Rd1 Bd2 Rc1
b2bKq1r/P1R1B3/n5RP/q1qB1R2/2Qq2n1/5NNP/B1P2k1r/1r1q4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 h3 Kf7 Ke2 Kf6 Kf3 Ke5 Kg4 Ke4 Kg5 b5 Kg6 d5 Kf7 e5 f4 g5 a4 b3 c6 b2 f6 g4 f5 d4 c7 d3 h6 d2 a5 Ke3 a6 e4 a7 b4 Ra4 b3 Rb4 g3 Bc4 g2 Be2 Na6 Rc4 Be7 Nc3 b1Q Nf3 g1Q Ba3 b2 Qf1 Bb7 c8B d1Q Be6 Qa1 Rc7 b1R B2c4 Q8d2 Ba2 Rd8 Bb4 Ba8 Ne2 Rd6 Ke8 Bd8 f7 Qd5 f8R Nf6+ Kf7 Qc4 Rh2 Rd2 Be7 Qc5 Rg2 Qb2 Rgg8 Ng4 Ng3 Rh2 f6 Qa1 Qc4 Qf2 Nd2 Qad4 Rg6 Qff5 Nf3 Kf2 Bd5 e3 Ke8 e2 f7 e1Q Rf6 Qg5 Rf5 Qed2 Rg8 Qgf6 f8Q Qda5 Rg6 Qxf8+
b2BnNr1/RPN4P/Q4N2/P4P2/r1n3q1/k3BR2/r1b1rBb1/2b1b2K w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Rh6 d4 cxd4 c4 Rh8 c5 b6 cxb6 a6 b7 Qb6 Bd2 Qc7 Bc1 Qd8 b4 Qc7 b5 Qd8 b6 Nf6 Be2 Ng8 Bb5 axb5 Kf1 e5 Kg2 Ke7 f4 Kd6 a4 Kc5 h4 Kb4 h6 d5 h5 g5 f6 g4 h7 e4 f5 g3 f7 d3 h6 e3 Nd2 d4 Ndf3 e2 Nh3 e1B Nfg5 d2 Qc2 d1R Bb2 d3 Bc1 d2 Qc6 Nf6 Qf3 Nc6 b8B Na5 Qd5 Nc4 Qe6 Bb7+ Ne4 Qd4 Nf2 Rg8 h8B Ne8 h7 Bh6 Kg1 g2 Nc3 Qg4 f8N Ra6 Qe2 Ba8 b7 Re6 Qd3 Re2 Bc7 Kb3 Bg7 b4 Bd8 Bg5 Kh2 g1R Bd4 Rg3 Rf1 Rg2+ Kh1 Bf4 Bb2 Rb1 Bc5 d1B Nfe4 Bc1 Nf6 Bc2 Be3 Rgf2 Ra2 Ra1 Qd6 Rf4 Ncd5 Rff2 Bbd4 Rg2 Rb2+ Ka3 Qa6 b3 Rf3 Ra2 Rb1 b2 Ra1 b1B Nc7 Be4 Bf2+ Bbd3 Bde3 Bc2 Rb1 Qg7 a5 Rg4 Rb6 Rf4 Qa7 Qg4 Ra6 Bd5 Qb6 Ncd6 Qb5 Ra4 Ra7 Nc4 Qa6 Be6 Rg3 Bd5+ Kh2 Bg2 Rf3 Bf1 Kh1 Bg2+
1N3B2/knB3r1/Prn3N1/4n3/q3PP1R/3RP1Qr/R2Nq1n1/2Kb1n1q w - - 0 1 legal: proof: b4 a5 c4 axb4 f3 d5 cxd5 f5 Qb3 h5 Qd1 e5 g3 e4 fxe4 f4 Bh3 f3 Be6 Bd6 Bg4 Bf4 gxf4 hxg4 d4 Kd7 Kd2 b5 a4 c5 h4 Kc7 a5 Kb7 d6 g5 h5 g3 e3 b3 a6+ Ka7 h6 c4 d5 g2 d7 b2 d6 g4 h7 g3 Nh3 g1R Rh2 c3+ Kc2 g2 Ng5 f2 Nf7 f1N Ra5 b4 Ra2 b3+ Kd3 c2 Rh1 Nc6 Na3 b1Q Nc4 b2 Bd2 c1N+ Kc3 Nh6 Nfe5 Nd3 Qc1 Nf5 Ra4 Rb8 Qe1 Qd1 Rh4 b1Q Ra2 Qa4 Qg3 Nc5 Be1 Rb4 Nd2 Rb6 Ng6 Qg8 d8R Nb7 d7 Qf7 Ne7 Qh5 Ng6 Qe2 Ne5 Rg8 h8N Rh1 Nhg6 g1N Qh2 Qbd1 Qg3 Nb4 Kb2 Nf3 Qh3 Rg7 Qg3 Rh3 Nc6+ Ka8 Nb8 Ka7 Qg4 Ne5 Qg3 Qdb3+ Kc1 Nbc6 Rf8 Qg8 d8B Qh7 Bc7 Be6 Rc8 Bb3 Rd8 Bd1 Rd3 Qhh5 Nb3 Qhf3 Bb4 Qfg2 Bf8 Qh1 Rh5 Nh4 Nd2 Ng2 Rh8 Rb2 Rh4 Rb6
b2qR3/NB1r2N1/1b2PR1q/NKB5/3brn1P/1r1q1B1k/P1QP2rb/8 w - - 0 1 illegal: No possible last move
2BnQ3/5q1B/5pnb/P1rB2Nk/8/1qR1PRn1/r2PPK2/bN1q1b1N w - - 0 1 legal: proof: c4 a5 b4 axb4 a4 e5 h4 d5 cxd5 g5 hxg5 e4 Ba3 e3 fxe3 bxa3 g4 h5 d6 b5 g6 c5 g5 a2 g7 c4 g6 b4 Nf3 h4 Bg2 f6 Bh3 c3 Nh2 c2 Kf2 c1Q Kf1 b3 Kg2 b2 Nc3 b1Q Rf1 Nc6 Ng4 Qc7 Rf3 Qf7 Kf2 Nge7 g8B Nd8 g7 Qbb3 Bh7 Ng6 g8B Bh6 d7+ Ke7 Qh1 Qcd1 Rc1 a1B Nb1 Kf8 Qh2 Kg7 Qb8 Ra5 Qe5 Rc5 Qe8 Bb7 Rc3 Ba8 Bg2 h3 a5 h2 Bh3 h1N+ Kg2 Be4 Nf2 Ng3 Nh1 Bb7 Kf2 Bc6 Rf5 Bg2 Rf3 Bf1 Bf5 Qe7 Bd5 Qf7 Rd3 Rc2 Rc3 Ra2 Bfe6 Bf4 Bg4 Kh6 Bf5 Kh5 Bh3 Nb7 d8N Bh6 Ne6 Nd8 Ng5 Rf8 Bc8 Rg8 Qd7 Re8 Qb5 Re5 Qe8 Rf5 Ba8 Rb5 Bd5 Rc5
q1n4B/PK3B1N/1Q1N1RP1/1N3p1n/2b1PR1R/2P2n2/2n2r1b/r2r1r1k w - - 0 1 illegal: No possible last move
nqk3n1/2r2n2/1BP2PN1/1B3rN1/P6r/R1p2K2/P2bRQBN/1nn2q2 w - - 0 1 legal: proof: h4 b5 e4 g5 b3 f5 exf5 gxh4 Nc3 a5 Nb1 a4 bxa4 Ra6 Nc3 Ra7 Nb1 Ra8 c4 bxc4 d3 c3 Bh6 c2 Bd2 Ra5 Bc1 Ra8 Be2 c5 Ba3 c4 Bf1 c3 Bb2 Ba6 Bc1 Bc4 dxc4 Qb6 Bf4 Qa5 Bc1 Qd8 Ke2 h5 f4 d5 g4 Kd7 c5 e5 g5 h3 c6+ Kc8 g6 d4 g7 h2 f6 h4 f5 e4 f7 e3 f6 h3 Nd2 d3+ Kf3 e2 Bg2 e1N+ Kg3 Nd7 Kg4 Rh7 Kf4 Ne5 Ne4 d2 Ng3 N1f3 Ne4 Ra5 Qf1 d1N Kg3 Ne3 Ng5 Nd2 N1f3 Nd5 Rb1 Nc7 Rb3 Nb1 Qf2 Na8 Re1 h1Q Nh2 Qf1 Be3 c1N Ra3 Qd6 Kf4 Qb8 Re2 Bd6 f8N Nf7+ Kf3 Bf4 Bb6 Bd2 Ng6 Rf5+ Nf4 Ne7 g8B Rh4 Ng4 h2 Bh7 h1R Nh2 Ng8 Bg6 Rd5 Bd3 Rd7 Bb5 Rc7 Ng6 Rh5 Ne6 Rd5 Ng5 Re5 Ng4 Rh4 Nh2 Rf5+
2n5/2b5/2knqB1P/qnbR3r/R5pb/KPQ1P1B1/BN1PNq2/2N3n1 w - - 0 1 illegal: No possible last move
b2BK1qB/PNP2N2/R1p4b/1n2Pb2/1k3n1n/Nn3r2/1P4Qb/B1R2n2 w - - 0 1 illegal: Other
q2b1q1B/rn2R3/P2n1r2/5PPq/2Q1RNK1/kBB1r1P1/1q2pNrR/8 w - - 0 1 legal: proof: e4 f5 c4 a5 b4 axb4 f3 d5 cxd5 g5 h4 g4 fxg4 f4 h5 Bf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kf3 Kd6 a4 Kc5 a5 h5 g5 e5 d3 b5 g3 h4 a6 b3 d6 Kb4 d4 c5 d7 e4+ Kg4 f3 d5 h3 d6 c4 Kf4 b2 Ra2 h2 Nh3 e3 Nc3 b1Q Qd3 e2 Ra5 f2 Qd2 Ne7 Qd4 Rh6 Rg1 h1Q Qe4 Ra7 Qd5 Nc8 Be3 Be7 Qb7 Nc6 Rg2 Rf6 Ra1 Na5 Qc6 Qf8 d8R Qb2 d7 Nd6 Kg4 Nab7 Nd1 c3 Bd4 c2 Rh2 c1R Nf4 Rc3 Bg2 f1Q Re8 Re3 Bd5 Bd8 Bb3 Qfg2 Re7 Qe4 Rc1 Ka3 Bc3 b4 Nf2 Qd5 Qc4 Qdf7 Ba2 b3 Rd1 Qc6 Rd4 Qc8 Rde4 Qa8 N4h3 Qc1 Nf4 b2 Bb3 b1R Qe6 Qb2 Qc4 Rg6 Bh8 Rg1 Bc3 Rg2 Bh8 Bb6 d8B Rf6 Bc7 Ba5 Bb6 Qg6 Bd4 Bd8 Bc3 Qh5+
bB3rn1/R4pn1/4k2n/1PrN2q1/Pq1P4/1nB1B1NR/q3P3/QKNq4 w - - 0 1 legal: proof: g4 a5 b4 d5 f4 h5 gxh5 e5 c3 exf4 Bg2 b5 bxa5 b4 Be4 b3 Bd3 Bc5 Bc4 Bb4 cxb4 dxc4 h4 Ke7 a4 c5 d4 g5 Kd2 b2 Kc2 f3 b5 f2 h6 f1N h5 c3 h7 c4 a6 g4 h6 g3 a7 g2 Nf3 g1Q Ne5 Na6 Bd2 Ng3 Rh3 Nf5 Nd3 Nc7 Nc1 Qe1 Ra2 Rb8 a8N Ne8 Nc7 Neg7 Nd5+ Ke6 Be3 Ra8 Nd2 Qg5 Kb1 Bb7 Ne4 Rc8 Ng3 Ba8 Ra3 Rc5 Bd2 Nf6 Be3 Rf8 h8B Qd2 h7 Nh6 Ra2 Nfg8 Ra1 Ngf5 Bf6 Ng7 h8B Qe1 Bd8 c2+ Ka2 Qd2 Ba5 Qb4 Qg1 c3 Qh1 Ne8 Be5 Ng7 B5f4 b1N Bb8 Nd2 Nd3 c1Q Qg1 Qd1 Nc1 Nb3 Kb1 Qf1 Ra2 Qe1 Rd2 Qc4 Rd1 Qd2 Rf1 Qb4 Rf6+ Kd7 Ra6 c2+ Ka2 Qd1 Ra7+ Ke6 Qe1 Qc4 Bc3 Qb4 Nd3 c1Q Qf1 Qe1 Qh1 Qcd1 Nc1 Qdd2+ Kb1 Qed1 Qg1 Qd3+ Kb2 Qe1 Na2 Qf1 Qh1 Qff5 Qa1 Qd1 Nc1 Qfd3 Ka2 Q3d2+ Kb1 Qa2+
R4q1b/KP2r2N/2R3q1/2B2B2/1qPQ4/R1qPqPk1/2qp3N/r3qbN1 w - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 e5 b5 axb5 c4 e6 c3 d3 fxe6 Bg5 e5 Bc1 e4 Bf4 d5 Qg4 d4 Bc1 Nc6 Qd1 Na5 Ke2 Nf6 Ra4 Nd7 Ra2 Ne5 Ra1 Nac4 dxc4 d3+ Ke1 d2+ Ke2 Nd3 cxd3 Bf5 Qa4 Bd7 Qd1 Bc8 Ke3 Kd7 Kd4 Ke6+ Kc5 Ke5 g4 Kf4 b4 e5+ Kc6 a5 b6 h5 f3 c2 b5 e3 b7 e2 b8R e1Q b6 a4 b7 e4 g5 a3 g6 h3 g7 a2 g8N h2 Ba3 c1Q Qe2 h4 Nh3+ Kg3 Be7 e3 Bb4 Bg7 Be7 Qf8 Kb6 Rh7 Na3 Bh8 Bc5 Qc2 Qd1 e2 Nf6 Re7 Ng1 h3 Nh7 Qf2 Qb1 e1Q Qb2 Qfe3 Qd4 Ra5 Ra8 Bf5 Rb1 a1Q Rb3 Qac3 Bg2 Qcd1 Nc2 Ra1 Rba3 Bc8 Nb4 Qdc2 Ka7 Qeb1 Nc6 Qbb4 Bf1 Kf2 Ne2 Bd7 Rg1 h1Q Rg6 h2 Bh3 Qg2 Ne5 h1Q Rc6 Qe1 Ng1 Qg6 Ng4+ Kg3 Nh2 Bc8 Bf5 Bd7 Be4 Bh3 Bf5 Bf1
1R3bNN/PpqR2Bk/1q1PnPr1/rn2b3/1Q4pB/4Pb2/1K1Rb3/2B5 w - - 0 1 legal: proof: c4 a5 b4 axb4 d4 d5 cxd5 e5 g4 f5 Kd2 h5 gxh5 f4 dxe5 f3 e3 Bh3 Bd3 Bc8 Be2 fxe2 Kc2 Kf7 f4 e1B h4 c5 a4 g5 h6 Kg6 h5+ Kh7 f5 c4 d6 c3 e6 g4 a5 Qb6 e7 Na6 e8R Qa7 Nd2 Qb6 Ne2 Bg3 Ne4 Bh4 Nf4 Bd8 Ra2 Bg5 Qd4 Nc7 a6 Bf6 Ng6 Be6 Rb8 Bd5 a7 b3+ Kb1 b2 Qb4 Ne7 Rf1 Rg8 Nh8 Rg5 Rf4 Be5 Rf1 Kg8 h7+ Kg7 Nf6 Nc6 Kc2 Ne6 Ng8 Bf3 Kb3 b1B Rd2 c2 Ka3 Bh2 Kb2 Ncd4 Rff2 Be2 Rf4 Nb5 Rc4 Be7 Rc7 Ba2 Rd7 Bd5 Nf7 Bh1 h8B+ Kh7 h6 Bhf3 Bg7 Bf8 Bf6 Rg6 Bh4 Bf4 f6 Bh2 Re8 Rc8 Red8 Rc3 Rb8 Be5 Nh8+ Be7 Qa5 Ra3+ Qc3 Ra5 Qd4 Bh2 Qb4 Be5+ Rd4 Nc3 Nf7 Rg5 Rd2 Kg6 h7 Bf8 h8B Kh7 Bg7 Rg6 Nh8 Nb5+ Kb3 Ra1 Ba3 c1Q Bb2 Qcc7 Bc1 Ned4+ Kb2 Ra5 Qc4 Ne6+ Qc3 Bf4 Qb4 Be5+
1RB1b3/q1b2r2/2QRq2P/k2pKPN1/1r1BB2q/r5Pp/2bR1NP1/7n w - - 0 1 illegal: No proof kernel
2k5/5BP1/1r1q2pn/1n2bN1B/qqq1b3/pR3Q1K/1P1PP1N1/R1q1B2N w - - 0 1 illegal: No proof kernel forced: bxDB
qk1r3r/N1r2B2/n1q3n1/3p1N1Q/KBbP1P2/3Rp1n1/1NP4P/4R1Rr w - - 0 1 legal: proof: b4 c5 bxc5 f5 e4 fxe4 a4 b5 axb5 Qc7 Nc3 Qa5 Nb1 Qd8 g4 h5 c6 hxg4 Qf3 e6 Qe2 Qb6 Qd1 Qd8 Ke2 a6 Ke1 Bc5 Na3 Bb6 Nb1 Ba7 b6 Ke7 bxa7 Ke8 d4 g5 Kd2 d5 Kc3 e5 Kb3 g3 f4 g2 c7 Kd7 Qf3 g4 Ra4 e3 Kb4 a5+ Kb5 g3 Ra1 e4 Nd2 a4 Bc4 a3 Bb3 a2 Bb2 e2 Ka4 e1R Ka3 e3 Qh5 Qf6 Ne2 g1N Rd1 g2 Ka4 a1Q+ Ba3 Ba6 c8N Kc7 Ng3 Ne7 Nc4 Ne2 Nb2 g1R Rd3 Ng6 Nf5 Ng3 Bc4 Qc6+ Bb5 Rg2 Rg1 Rc1 Kb3 Rd8 Bb4 Qa5 Ba4 Bc4+ Ka3 Na6 Re1 Rb8 a8R Rh8 Na7 Rbd8 Rc8+ Kb7 Rc7+ Kb8 Rg7 Qac7 Rg8 Qa8 Be8 Qcc6 Bf7 Rg1 Nb5 Rb1 Ka4 Rh1 Nd1 Qc7 Na7 Rb3 Nb2 Qc5 Ba3 Rb7 Bb4 Rc7 Rg7 Ne7 Rg5 Ng6 Rg4 Ne4 Rg2 Ng3 Rgg1 Qcc6+
Q5r1/K1P1rP1b/RPN2PN1/1n3B2/pR1bq1R1/1b4b1/1B1p2r1/rB3k2 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 axb5 cxd4 Qd2 a4 Qd3 Nc6 Qd1 Na5 bxa5 Bh6 Bb2 Bg7 Bc1 Bf8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 g4 e5+ Kc4 h5 f4 h3 a6 h2 f6 d3 g5 d2 a7 Ke3 f7 Kf2 g6 h4 g7 e4 f5 e3 b6 d5+ Kb5 d4 c4 d3 c5 e2 f6 e1B c6 h3 c7 Bc5 Na3 Nh6 g8B Bd4 Nc4 Nf5 Ne5 Qe8+ Nc6 Qe4 Bh7 Rg8 Ne2 Rg2 Rg1 h1R Nf4 h2 Ng6 Nd6+ Ka5 Ba6 Rb1 Nb5 Rb4 Rg8 a8R Bb7 Qb3 d1B Qd5 d2 Ra6 Bb3 Bd3 Bc8 Ba3 Bf5 Bb1 Ke2 Bb2 Bg3 Qd8 Kf2 Qa8 Ke2 Rc1 Re1 Rc3 h1R Rcc4 Bc5 Rd4 Kf1 Rdc4 Qe6 Rg4 Bd4 Nf4 Bd3 Bf5 Qc4 Ng6 Re7 Ra7 Qd5 Ka6 Qe4 Kb7 Rhg1 Ra6 Ke2 Ba2 Ra1 Bb1 Kf1 Nh4 Qe3 Bd7 Nd6+ Ka7 Bh7 Ng6 Qe4 Bf5 Nb5+
1qB1R3/nnpp2Q1/1PN2PKN/1qb2RR1/4nbP1/k3qP2/2n3b1/6BB w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 h4 gxh4 c4 Kf7 a4 bxa4 b5 Ke8 b6 Bh6 Nc3 Bg7 Nb1 Bf8 d4 h5 b7 e5 Qb3 e4 Qa2 a5 Qd2 Ra6 Qe2 Rb6 Qd1 Rb5 cxb5 Rh6 Na3 Re6 Nb1 Re5 dxe5 Bh6 Bd3 Bg7 Bf1 Bf8 Kd2 Ke7 Ke3 a3 Kf4 a4 Kg5 a2 g4 e3 e6 e2 b6 e1Q Bd3 Kd6+ e7 Kc5 f6 Kb4 e8B a3 Bf1 h3 Bc4 h4 Ba6 h2 Qd5 h3 Kh5 Ne7 Bf7 Qe3 Ne2 Nf5 Kg6 Nd6 Ng3 Nc6 b8R Bb7 Nd2 Na7 Rf1 h1N Nf3 h2 Nf5 Ng3 Nh6 h1Q Ne5 Nge4 Nc6+ Ka4 Ra8 Qb8 Qg5 Qh2 Bfc4 Qe5 Bd5 Be7 Rb1 a1B Rb5 a2 Bb2 Bf8 Bd4 Ka3 Rc5 Bb2 Rb5 a1N Rc5 Nd2 Bh1 Nc2 Rb5 Be7 Rc5 Bc1 Rd5 Qh8 Re8 N2e4 Rb5 Ba8 Bc8 Nb7 Rc5 Q5g3 Rf5 Bc5 Rd1 Qb3 Be3 Qb5 Rdd5 Na5 Bd4 Bf4 Rde5 Qe3 Rd5 Bb7 f3 Ba6 Rde5 Nb7 Rd5 Qbb3 Rde5 Bf1 Rd5 Qb5 Rde5 Qe1 Bg1 Qe3 R8e6 Ng3 Kf7 Qd8 Re8 Bd3 Qg7 Nh5 Rg5 Ng3 Ref5 Bf1 Kg6 Bg2 Re7 Ne4 Re8 Na5 Bb7 Qb8 Bc8 Nb7
8/1BnPPRPp/q4q1N/B2R1rq1/4nQ2/1P1pR1N1/k3qnKn/6bN w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 h4 gxh4 d3 a5 b6 d5 Qc2 c5 Qb3 Be6 Qd1 d4 Bd2 Bd5 cxd5 c4 Be3 c3 Bc1 Ra7 Nh3 Rc7 Ng1 Rc4 dxc4 Qd7 Qd3 Qd6 Qd1 Qd8 Kf2 Kd7 e4 Kd6 g4 Kc5 d6 Kb4 d7 f5 b7 f3 g5 c2 g6 Kb3 g7 f4 e5 d3 c5 a4 c6 a3 e6 h3 c7 h2 c8N a2 Ne2 Qh4+ Ng3 Qh5 Ne7 Na6 Bd2 Nf6 Ng8 Nc7 Bg2 Bc5+ Kf1 f2 b8R+ Bb6 e7 Ne4 Nh6 Rf8 Nc3 Rf5 Qg4 c1Q+ Nd1 Qg5 Re8 Qc3 Rf8 Qcf6 Ba5 Bd4 Rg1 h1N Rf7 Be3 Rc1 a1Q Rc5 Ka2 b3 Qa6 Bf3 Q1f6 Kg2 f1N Nf2 Nh2 Rd5 Ba7 Re1 Bb6 Nh3 Bg1 Re3 Nhf2 Rb5 Nc3 Bb7 Nce4 Qh4 Nfg4 Rd5 f3+ Kh1 f2 Kg2 Ne5 Qf4 f1Q+ Kh1 Neg4 Nf2 Qe2 Kg2 Qe1 Nfh1 Ngf2 Bb4 Qd2 Ba5 Qe2
1B2k3/Pp3Rr1/b3q3/4qRpB/NPnP2R1/1n1P2NK/q6n/qQ3Bn1 w - - 0 1 legal: proof: b4 d5 a4 a5 g4 h5 c3 hxg4 f4 d4 cxd4 Ra6 f5 Rb6 f6 Rb5 axb5 exf6 Nf3 Bc5 Ng1 Ba7 b6 f5 bxa7 f4 Kf2 c5 Kg2 f5 h4 g5 e4 a4 h5 g3 h6 c4 d3 a3 h7 a2 e5 c3 e6 c2 e7 f3+ Kh3 g2 Rh2 f2 Be2 f1Q Kg3 Nf6 Rh3 f4+ Kh2 f3 Nd2 f2 Bf3 Rg8 h8R Qe2 Nb1 f1Q R8h7 Qe6 Bf4 c1N Be2 Qa5 Rf3 Bd7 Rf7 Qe1 Bf1 Rg7 Ne2 g1N Ng3 Bb5 Nc3 Ba6 Na4 Nbd7 Bb8 Nb6 Rf5 Nb3 Qb1 Nc4 Kg2 Q1e5 Kh2 Nf3+ Kg2 Ng4 Kh3 Kd7 e8B+ Kd8 Rc7 Ngh2 Bh5 Qad5 Rf7 Ke8 Qc2 Qa5 Re1 a1Q Qb1 Qa2 Re4 Qa1 Rh4 Qad5 Rg4 Qa5 Nc3 Q5a2 Na4 Ng1#
R6b/3n1bNk/Nr2P3/n3BbPq/PpP3pB/p3r3/3B2r1/1R1N2QK w - - 0 1 illegal: No proof kernel
2q1r2b/2N1N3/1RP2QBn/1pr5/n2pP3/1rP1RKB1/1pk2bPB/4n2N w - - 0 1 legal: proof: e4 c5 h4 a5 b4 axb4 d4 g5 dxc5 gxh4 Qe2 e5 Qd3 f5 Qd1 b6 f3 Bb7 exf5 e4 Bb2 e3 Bc1 Be4 fxe4 Kf7 Nh3 Ke7 Ng1 Ke8 Ke2 Kf7 a4 Kf6 a5 Ke5 a6 h5 f6 d5 a7 b3 c6 b2 f7 b5 Qd3 h3 Kf3 e2 Na3 e1B Bd2 h2 Bg5 h4 Nb1 h3 Nc3 Na6 Bh4 Rh5 Nge2 Qc8 Ng3 Nc5 Ra6 Bf2 Rb6 Na4 Be2 Bg7 f8B Nh6 Re1 Bh8 Nh1 Rb8 a8N d4 Ng3 h1N Nc7 h2 N3d5 Rg5 Ne7 Kd6 Rc1 Kc5 Re1 Kb4 c3+ Kb3 Qd2 Rc5 Qg5 Kc2 Qf6 Be3 Bc4 Qd8 Ng8 Nf2 Be6 h1R Bd6 Nd3 Ne7 Bf2 Re3 Ra1 Bf5 Ra3 Nh1 Rb3 Bg6 Qd7 Bh2 Re8 B4g3 Qd8 Qd6 Qc8 Qf6 Ne1+
q1r3RB/2QK3B/r4Ppq/pB1P1Pb1/r1b1P1N1/2pRn3/6N1/1k1n1N2 w - - 0 1 legal: proof: h4 d5 d4 b5 g4 f5 gxf5 e5 a4 g6 c4 Ne7 h5 Qd7 h6 Ng8 axb5 dxc4 d5 Qe7 Qd4 Qg7 hxg7 exd4 Kd2 Kd7 e4 Kd6 f4 Kc5 b3 Kb4 f6 a5 f5 h5 b6 c5 b7 c3+ Kd3 h4 Ra2 c2 Bf4 c1Q Rah2 h3 Ne2 Nd7 b8N Nh6 g8B Ng4 Bh7 Ne3 Nd2 Ka3 b4 Ka2 b5 Nb6 Nc6 Na4 b6 Nc3 b7 Bh6 b8Q Ncd1 Ne5 Ra6 Ng4 Bg5 Qc7 Ka1 Rg2 h2 Rg3 Bd7 Bd6 Rc8 Nf4 Ba4 Ng2 Bb3 Bf8 c4+ Ke2 d3+ Kf3 c3 Bg7 Qb1 Bh8 Bc4 Be2 Ka2 Nf1 d2 Rh3 Qb7 Kg3 Bh4+ Kf4 Kb1 Ke5 Bg5 Rf3 Qa8 Rh3 Ra7 Ke6 Ra6+ Kd7 Nc2 Rg1 h1Q Rd3 Qh6 Rh1 Nce3 Rd4 Bb3 Bb5 Bc4 Rd3 Nb2 Rh3 d1R Rf3 Rd2 Rf2 Nbd1 Re2 Ra2 Rb2+ Kc1 Rb4 Bb3 Rc4 Ra4 Rc6 Bc4 Re6 Kb2 Re8 Ka2 Rg8 Kb1
2N1q1n1/K1n1B1RR/3pppRP/2kB3P/2r1r3/P3P3/n2bq3/Q1Nr2N1 w - - 0 1 legal: proof: c4 a5 b4 h5 g4 c5 d4 cxd4 gxh5 b5 f4 g5 fxg5 Ba6 Qb3 axb4 Qd1 b3 Nf3 b4 Ng1 Bb5 cxb5 Ra6 Qc2 Ra5 Qd1 Ra8 Kf2 d3 Ke3 b2 Kd4 e6 h4 Ke7 Kc5 b3 a3 d2 g6 Nh6 g7 Ra6 g8R Nc6 b6 Nb4 b7 Ra4 b8N Na2 Rg7 Ng8 Nc3 b1N Bg2 b2 Bd5 Qe8 Kb6 Kd6 Nc6 Re4 Ka7 Kc5 Ne7 d6 Nc8 Rh7 Qe1 d1Q Bg5 Qd2 Bd8 f6 Be7 Qc2 Rg6 Bh6 Rg7 Bd2 e3 Rh8 Nce2 Nbc3 Nc1 b1R Rg6 Rbb4 Rb1 Rbc4 Rb7 Rh7 h6 Rg7 h5 Qd3 Rh3 Qe2 Rhg3 Nb5+ Kb8 Nc7 Ka7 Ba5 Qc3 Bb4 Qa1 Ba5 R6g4 Rg5 Rg2 Rf5 Rg7 Rf1 Rh7 Rd1 Rgg7 Qf3 Rb2 Qf1 Rbg2 Qe2 R2g6 Bd2
b1k4r/q3BQBR/prP3NR/3nP2r/2K5/2pR1p2/nNn2P1P/5q1N w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 h5 g4 e4 gxh5 Rh6 Na3 Rh7 Nb1 Rh8 Bh3 c5 Be6 Bd6 Bc4 Bf8 Bd3 exd3 Ra6 c4 Ra1 Bc5 dxc5 dxc2 Kd2 d5 Kc3 Kd7 b4 g5 e4 f5 h6 g4 b6 f4 b7 g3 b5 f3 e5 g2 b6 Qc7 h7 Nf6 c6+ Kd8 Bh6 c1N Qb3 Qg7 Nd2 Qf7 Ne2 g1R Bg7 Na6 b8R Nb4 b7 Rg5 Ng3 Nc2 Rd1 Rh5 Nh1 a6 Ra4 Ra7 Ra8 Qe7 b8B Rb7 Bd6 Rb6 Ra7 Bb7 Bb4 Qd7 Be7+ Kc8 Ra3 Ba8 Rg1 Qd8 Rg6 Qc7 Rh6 Qb8 Rd7 Qa7 Rb7 Rd8 h8N d4+ Kb2 d3 Ng6 Rh8 Kc3 Rb5 Nf1 d2 Ne3 Rb4 Nd1 Rb6 Nb2 d1Q Qa2 Qf1 Rd7 Nb4 Kd4 Nfd5 Rd3 c3 Qc4 Nf6 Qf7 Nc2+ Kc4 Na2 Rd4 Qb8 Rh4 Nd5 Rh3 Qa7 Rh7 Rf5 R3h6 Rh5
2nQ4/N2p1PNR/b2n1B2/1r5p/bPbPK1P1/1B6/r1N1BpR1/nk1r4 w - - 0 1 legal: proof: e4 c5 h4 g5 Qg4 gxh4 Qd1 c4 a3 b5 b3 b4 axb4 cxb3 Bd3 e5 Qh5 Bc5 Qd1 f5 Nc3 f4 Kf1 Qa5 Nb1 Be3 Ke1 Qd5 Bf1 Qf7 Ke2 Qf5 exf5 e4 Ba3 Bd4 Bb2 e3 Kf3 e2 Bc1 Be3 fxe3 Bb7+ Kf2 Bc8 g4 Ke7 Kf3 Kd6 d4 Kd5 c3 Kc4 f6 a5 e4 h3 f7 h2 e5 a4 e6 a3 e7 b2 e8N a2 Qd2 Kb3 c4 e1R c5 Nf6 c6 Ba6 c7 Rd1 c8B Ne4 Be2 Nd6 Bb7 Nc6 Na3 b1B Ng7 Na7 Nb5 Nac8 Na7 Bbd3 Bd5+ Bdc4 Qe1 Kc2 Qh4 Re8 Qd8 Re5 Rb1 a1N Rb2+ Kc3 Be6 Rb5 Rc2+ Kb3 Bd2 h6 Be1 Ka3 Bh4 Kb3 Bf6 Ka3 Rc1 Kb2 Rc2+ Kb1 Rd2 Ne8 Ke4 f3 Rd3 f2 Nf3 Ne7 Ne1 Nc8 Rg1 h1B+ Rf3 Bg2 Nc2 Bf1 Rg2 h5 Rc3 Bb3 Rc6 Ba4 Bb3 Ned6+ Kf3 Nf5 Re6 Nfd6 Re8 Nb7 Rh8 Nbd6 Kf4 Rab8 Rh7 Ra8 Bf3 Bd3 Be2 Bc4 Nc6 Bb7 Qb6 Raa5 Na7 Ba6 Ba2+ Kc1 Qd8 Bab3 Ke3 Ra3 Kf4 Ba4 Bb3 Kb1 Kf3 Ra2 Ke3 Nb7 Ke4 Nbd6+
1B1qn1KN/3k2P1/2ppn2N/2n4n/R1PP4/1QqRBr2/2P2p2/2Nr1b1R w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 hxg5 a6 b6 Bh6 e3 Bg7 Bb5 Bc3 bxc3 axb5 Kf2 h5 Kf3 f5 d4 h4 g4 b4 b7 c6 c4 h3 e4 h2 e5 b3 e6 b2 e7 d6 g6 Nd7 b8B Nf8 g5 Ra3+ Be3 Nf6 g7 Ne6 g8N Kd7 g6 Ne8 Nc3 b1N Ne4 Nc3 g7 Na4 Qb1 Nac5 Nh6 Rd3 Qb2 Rd1 Ng5 Rf8 Qb3 Rf6 Ra4 Rf8 Kg2 f3+ Kg3 f2 Kh4 f1Q Kh5 f4 Kg6 f3 Kh7 f2 Ne2 Rf3 Ngf7 Qe1 Kg8 Qd2 Nc1 Qc3 Rg1 h1N Nh8 Ng3 Rh1 N8c7+ e8R Nh5 Rf8 Ne8 Rf5 Rh3 Rg5 Rf3 Rg3 Nef4 Rb4 Ke7 Rg6 Bh3 Bd2 Re3 Ra4 Kd7 Rg3 Nfe6 Rf3 Bf1 Rg3 Re4 Rd3 Rf4 Be3 Rf3
1Q5B/2P1NpR1/1K3kPP/qN2r1R1/1R3bP1/p1q2p2/1n2bnp1/bN2B3 w - - 0 1 illegal: No proof kernel
2NbnbRK/2Pnq3/b3r3/2q1RPrr/B7/rr1P4/QP1BnB2/1NNk4 w - - 0 1 illegal: No proof kernel
N4nKn/1rn2QRP/2n1b3/3nB2R/2kP2nP/1qn2rBB/1Pr1N3/2b3R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 h4 a5 e4 g5 b6 a4 h6 c3 d3 f3 h7 g4 b7 a3 Bg2 f4 d4+ Kc4 Qd2 c5 Ne2 a2 Ng1 g3 Qe1 f2 Bh3 f1N Qd2 f3 Bf5 g2 Rh2 f2 Be6+ Qd5+ Kf4 c2 e5 Na6 Kg5 Rb8 Kg6 Ne3 Kf7 f1N Qf2 Nf6 Qe1 Nd7 Qd1 Bh6 Nf3 g1N Ng5 Ne2 Rh3 Nc3 Nf3 Ng4 Nh2 Nfe3 Nf3 Nc7 Rg3 Nf8 Ng5 Rg8 Bd2 c1N Qf1+ Nd3 Be1 Rh8 Qf3 Nf4 Rg1 N4g6 Bg3 Kb3 Qf1 c4 Rg2 Qb5 Bf5 Qb6 e6 Ned5 e7 Kb4 Ne6 Bc1 e8R Kb5 Nc5 Be6+ Kg7 Kb4 Nd7 Qb5 Rg1 Qa4 Nb6 Qb3 Na8 Kb5 Nd2 Kb4 Rb1 a1N Ne4 Nc2 Be5 Kb5 Ng3 Ncb4 Ne2 Nc6 Rg2 Nd1 Ra1 c3 Ra7 c2 Rg1 N1c3 Re7 Nde3 Ra5+ Kc4 Bg3 Ned5 Rf7 Re8 b8B Re7 Qf4 N7b5 Qf2 Rb7 Bbe5 Nbc7 Qf4 Nd7 Qf2 Rf8 Re7 Rf7+ Kg8 Nh8 Qf4 Nf8 Qf1 Nh2 Bh3 Ng4 Qf2 Rf3+ Rf7 Bd2 Qf1 c1R Rb5 Bd7 Rg7 Rc2 Ra5 Bc1 Qf2 Re3 Qf7 Be6 Bef4 Nb6 Rh5 Rf3 Be5 Nbd5
2rN1BB1/bN1q4/1r5r/1RR3n1/2bbn1PP/r3RQr1/1n2P1bP/kN3K2 w - - 0 1 illegal: No proof kernel
q1b3NR/1PRP2BK/k1rQb1Bn/3B1bP1/5r2/bnP3nR/1r4N1/nb6 w - - 0 1 illegal: No proof kernel
rrN2r2/1bk1N2B/PR2RnN1/K2Q1q2/4r2q/B1PP4/P1rq1b2/q4n1R w - - 0 1 illegal: No proof kernel
3q2n1/1PP1RP2/2BB1nnr/NbBP4/b1r2Q1b/1n4K1/k1n2R2/N2qbR2 w - - 0 1 illegal: No proof kernel
r1r4n/2Qr1B1r/1bnq2RB/2B2b1P/PNb5/1kqP4/1b3KnP/2R1NN2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 e4 Ke7 a4 Kd6 e5+ Kc5 d6 b5 d7 g5 e6 f5 e7 b3 e8N Kb4 Nf3 c5 Ne5 f3 Qc2 c4 Qd1 g4 Ra2 c3 Ra3 f4 Nf6 c2 Ng6 g3 Ne5 g2 Bd3 g1B Qe2 b2 Qf1 f2+ Ke2 f3+ Ke3 Rh7 Ne4 Nh6 Qg2 f1B+ Nf2 Nc6 Bg6 Nf7 Ra2 Bg7 Qh3 Bc4 d3 Kb3 Qg2 b4 Nc3 b1Q Qg3 Qa1 Nd5 Nh8 Bf7 Qc3 Ba3 Qf8 d8B c1R Bg5 Qd6 Bh6 Bf5 Ra1 Rc2 Rc1 Bf6 Kf4 Bg7 Ng4 f2 Kf3 f1N Nge3 Bf2 Rg1 Bf6 Ng2 Ne3 Ne1 Ng2 Ng4 Bb6 Nge3 Ka2 Qf4 b3 Kg3 b2 Bc5 b1R Nf1 Rb5 Kf3 Kb3 Nb4 Rba5 Qg3 R5a7 Qe5 Rd7 Qe7 Ne3 Rg6 Ng2 Qd8 Re2 Qc8 Re8 Qc7 Rec8 Kf2 Bg5 Ra1 Bc1 Rb1+ Bb2 Ra1 Re7 Rc1 Rd7
1n1Nb1rb/Rqk3bB/5R2/1RPP1nN1/B6r/2K4q/rP2b1P1/q3Q1Br w - - 0 1 illegal: No proof kernel
3qrrq1/2kq1rbN/1R1R2B1/2PP4/q1bb3N/1P3n1Q/b3PR2/2Bn1KB1 w - - 0 1 illegal: No proof kernel
nqq5/r3R3/1n1P4/1PP2n1N/1P2K3/RB1rq2Q/1rNBb3/R1bkBqn1 w - - 0 1 illegal: No proof kernel
7B/3Pr1q1/K4r1P/nB2r2Q/bnR1BR2/1nb3r1/kPPNRq2/2nN2b1 w - - 0 1 illegal: No proof kernel
2N1N3/B1b2NQ1/PP2r3/1PbrbP2/1n1n2BK/q1b2b2/R2nbR2/B4nk1 w - - 0 1 illegal: No proof kernel
n1r1q2q/bBnB4/3RPk2/6b1/PQ1Pbnn1/P1NR4/1n1p3N/B2r1KN1 w - - 0 1 illegal: No possible last move, all moves rejected
3nn1B1/KB2QNr1/R1P1pq2/2PP2rb/3R2R1/1qPbq1B1/q3k3/2b3qN w - - 0 1 illegal: Other
1b3rR1/1Q2bR1P/2b3PB/qn1r3k/1bN1n2b/1qNnP1R1/B2p2KP/4N3 w - - 0 1 illegal: No proof kernel
1R2Bn1r/1n2nP1b/4B2b/P2r2Qb/bq6/P1PR1p1N/k7/BN2qRKb w - - 0 1 illegal: No proof kernel
1qqr2R1/N1pb1RRr/1n1PN3/n2n3N/3P4/2bkP2P/1Qrr2KB/1r5B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kf6 b4 Kf5 e3 Ke4 h3 f5 b6 a5 b7 g5 b5 g3+ Kg2 a4 b6 g4 Rh2 a3 Qd2 a2 Na3 f3+ Kh1 f2 Qb4 f4 Ne2 Kf3 Qa5 Nd7 b8R Bb4 b7 Rh7 d6 Bc3 Nc2 Ngf6 Qg5 Nb6 Qh6 Nfd5 Na3 Bd7 Bd2 Qc8 Rd1 a1N Nb5 Nb3 Qg7 Ra2 Be1 Rc2 Rg2 Na5 Na7 Rd2 Rg1 g2+ Kh2 Rc2 Ng3 Rd2 Ba6 f1R Nh5 Rff2 Bc4 Rfe2 Bg3 Rc2 Bd3 Red2 Be4+ Ke2 Rdf1 f3 Ra8 f2 b8N Nb3 Qh8 Na5 Nbc6 Qb8 Nd8 Qc8 Rc1 f1R Ne6 Rf8 Rcf1 Rd8 Rf7 Qb8 Rc1 g1R Bh1 Re1 Kg2 Rf1 Ra1 Rb1 Bh2 g3 Qf6 Qc8 Qf2+ Kd1 Kf3 g2 Ra2 g1Q Rb2 Qe1 Kg2 Qe2 Rb5 Qb8 Rc5 Qa6 Rg7 Ne7 Rf5 Qac8 Rff7 Ned5 Kg3 Nb4 Qg2 Ke1 Qb7 Ke2 Kg2 Nbc4 Qb5 Nd5 Qb2 Ncb6 Rg6 Rg8 Rf8 Qbb7 Qb3 Qe8 Qb2 Rgh8 Rf4 Qf8 Re8 Qb8 Re7 Qfe8 Rg3 Rf8 Rg8 Qec8 Reg7 Rd8 Rff7 Kd3+
4b2B/1P2Q3/5brn/1BPpq2R/1bqNNq1B/P1qk1Pq1/8/Rn1K1rN1 w - - 0 1 illegal: No proof kernel
1QB1N3/R2bKb2/1PB1R3/bnb1Pp1q/2brrN2/P1b4R/4PB1b/4n2k w - - 0 1 illegal: No proof kernel
1B2n1B1/1nn1nRp1/r1QN3P/4b3/NB1bRnPn/qk1P1K2/NnrP4/8 w - - 0 1 illegal: No proof kernel
4k3/PK1b4/4bbr1/BNbP2R1/1Qn2Pn1/2RN1b2/1BbPbr1p/NB3q2 w - - 0 1 illegal: No proof kernel
4B1n1/1N2K2B/Rbq3bk/q2QBr2/1n3nP1/1Pp3b1/3PPb1N/3rN1Rq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 a5 Kf3 h5 Ke4 c5 Ke5 f5 g4 Kf7 g6+ Kg7 b6 c3 b7 c2 b3 a4 Rh2 f3 Rh3 h4 Bg2 a3 Rh2 c4 Nh3 f4 Qh1 f2 Qd1 f1N Qe1 f3 Nf4 a2 Bh1 h3 Nd3 f2 Bd5 Na6 b8N Bd6+ Kd4 Ne3 Nc5 f1Q Rf2 h2 Bf7 h1Q Ne4 Bg3+ Nd6 Qc6 Rf6 Bf5 Be8 Nd5 Bb2 c1B Nb7 Rh5 Na3 Qa5 Nd7 Nf4 Ne5 Qfh1 Nf3 Nb4 Nh2 Kh6 g7+ Bg6 Nc2 Rf5 Qg1 Ra7 Qg2 Ra8 Re6 Nf6 g8B Ra7 Bc3 Bb2 Rg1 a1B Qd5 Ra6 Ne1 Ra8 Ke3 Ba3 Be5 Ra6 Rg2 Bd4+ Kf3 Bdf2 Bh7 Bb2 Rd6 Bbd4 Re6 Ng8 Ke4 c3 Rd6 Qac7 Re6 Ra1 Rf6 Qa5 Re6 Qf1 Rg1 Rd1 Rd6 Qcc7 Rb6 Qc6 Ra6 Bb6 Bc7 Rf8+ Ke5 Nf6 Bd6 Qg2 Bb8 Qh1 Bd6 N4h5+ Ke6 Nf4+ Ke7 N6h5 Qd3 Rf5 Qd5 Nf6 Be5 Ng8+
Bnk4n/4qqKN/2BB1r2/q3b1Q1/b2RP2p/PNR1P3/2nq1P1r/1b1R4 w - - 0 1 illegal: No possible last move, all moves rejected
Bq1b4/2nQ1r1b/NRqRN2K/r2B1PPP/1b6/qP1p2Bk/nn1b3N/8 w - - 0 1 illegal: No proof kernel
bB2n1r1/Kb1RR2N/Q2N3P/6rb/B2p2P1/R2r4/Pnq2Pn1/bB3k1q w - - 0 1 illegal: No proof kernel
1brRB1k1/1B4b1/4P1qq/rrq1BK2/P1b1r1p1/1PQ3P1/4n1N1/n2N1RN1 w - - 0 1 illegal: No possible last move, all moves rejected
2Bk1q1r/b2nRbn1/R2Pp3/1BBr4/1b1Q1KP1/2qN1P2/3NP3/r3q1Rq w - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 axb5 dxc4 Qb3 f5 h4 f4 Qg3 fxg3 hxg5 Bf5 Bg2 Be6 Bf1 Bc8 d4 h5 Kd2 a5 Ke3 c5 b4 h4 d5 g2 b6 h3 b7 c3 b5 a4 g6 c4 g7 c2 b6 c3 Nd2 a3 Kf4 a2 Ngf3 g1B Ne5 h2 Ba3 c1Q Nd3 c2 Bg2 Nh6 g8B Ra5 Be6 Qe1 Be4 c1R f3 Nf5 Bd6 Bf2 Rg1 Ng7 B4f5 h1Q Bd7+ Kf7 Ba4 Be6 Ba3 Kf6 Bc6 Bf7 Bc8 Nd7 b8Q Rb5 Qa7 Rbc5 Bb5 Bd4 Rb1 a1Q Rb2 Bf2 Ra2 Qc3 Bb4 Ra1 Ra6 e6 b7 Ke7 Qb6 Ne5 b8R Qd6 Qa7+ Kd8 Rb7 Qe7 Rc7 Qe8 Qb6 Bd6 Qa7 Qf8 Re7 Nd7+ Ne5 Bb8 d6 Rd5 Nd3 Bc7 Qe3 Ba5 Qe4 Bc5 Qd4 Ba7 Bc5 Bb4
b3qB1b/2qNq1qB/P1n1kr2/Q2rP3/P3Rn1R/p3NP1N/2n5/1Rb2K2 w - - 0 1 illegal: No proof kernel
2n2b1R/BrQq2KP/Bq2bBN1/1P1R4/q2PN1p1/NP6/4r2n/k2qb1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 h5 g5 h6 a5 h7 g3+ Kf3 a4 Be2 g2 Na3 c4 Qd2 c3 Rh6+ Be6 Qc2 g4+ Kf2 f3 Kg3 f4+ Kh2 f2 Nb1 f1Q Rh3 f3 Kg3 f2 Kf4 a3 Bd3 a2 Na3 Nd7 Nf3 g1N Rh5 Ne7 Kg5 Qb6 Ne5 Ra7 Bf4 Qd1 Ng6+ Ne5 Kf6 f1Q b3 Nc8 Be2 Be7+ Kg7 Rb7 Bf3 Re8 Bg5 Qc4 Bf6 Qcc6 Bh1 Nef3 e5+ Kc7 Qh2 c2 d6+ Kd7 Qf4 c1B Rg5 Kd8 d7 Kc7 Rf5 Bd2 d8B+ Kd7 Bc7 Be1 Bb8 Nh2 Ba7 Kc7 Rc1 a1Q Bf3 Bc4 e6+ Qd6 Rd5 Qa2 Qd2 Qd7 Qc3 Qa1 Nc2 Qa4 Na3 Bb4+ e7 Bc5 Rh5 Be6 Be4 Kd6 Bf5 Bb4 Qc7+ Kd5 Rc6 Bf7 Be6+ Ke4 Rd5 Kd3 Rc1 Bc5 Ra1 Kc3 Bf5 Rh8 e8N Kb2 Nd6 Re8 Ne4 Re5 Rc1 Be7 Rc6 Ka1 Re6 Bd8 Re8 Be7 Rh8 Bg8 Nd2 Re2 Ne4 Qd8 Bd7 Be6 Bc6 Rb8 Bb7 Qd7 Ba6 Rb7 Qc5 Rb8 Qc4 Rb7 Qc7 Bf8+
1q2q3/1rR4P/3bk1N1/PQ1p3n/P1R3n1/1NKBbbnq/N2B2P1/2R3rn w - - 0 1 illegal: No proof kernel
1N4KN/1qNb1B1P/1B1QPq1q/1R5P/RBnqrb1n/1rp4r/1P3b1k/8 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 a5 h4 c5+ Kc3 Ke5 e4 g5 d3 a4 h6 g4 b6 a3 h7 g3 b7 g2 Qf3 a2 Nh3 g1B Qe3 f3 Nf2 f4 Na3 Bh6 Nd1 f2 Bh3 f1Q Qg3 Ne7 Bd2 Qf3 Nf2 Nd7 b8N Ng6 Nb5 Nb6 Nc7 Bd7 Be6 Ra4 Nh3 Bf2 Bf7 Rb4 Ng5 Rb3+ Kc2 Qf6 Bb4 c3 h5 c4 Rh4 Re8 Rd1 a1R Rd2 Kd4 e5 Ke3 d4 Rh1 d5 Rh3 d6 Qg7 Rg4 Nh4 Rd5 Ke2 Qh2 Kf1 Rb5 Qb7 Qg3 f3 e6 Rc8 Re4 Qd4 Qf4 Kg1 Qd2 Bc6 d7 Kh2 d8B Bd7 Rf4 Qe3 Qd6 Qd4 Kc1 c2 Rg4+ Qe5 Kd2 c3+ Kd3 c1Q Re4 Nc4 Rd4 Be1 Re4 Qef4 Kd4 Bg3 Kc5 f2 Rd4 Qg4 Rf4 f1Q Kd4 Nd2 Ke5 Bf2 Kf6 Nc4 Ke7 Qgd1 Kf6 Qd4+ Ke7 Bg7 Re4+ Be5 Kf8 Bf4 Kg8 Rd3 Nca6 Rc6 Bb6 Rh3 Nc7 Qce3 Bg6 Rc5 Nf7 Re5 Nh8 Qec1 Bf7 Qcd2 Re3 Re4 Re2 Bg3 Re1 Qh6 Ra1 Bf4 Ra4 Qfd1 Ng6 Qf6 Nh8 Qdd4
1bn1Q3/1K2qbnP/2P1n3/1R1qNNkB/rR4r1/1p2P1R1/N5P1/q3B1qb w - - 0 1 illegal: No proof kernel
q2K1b1R/3B2Pq/2P1NQnn/kPR5/3p4/2PB1N2/1nbB1n2/2qRrr1b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 f5 Kf3 h5 e4 a5 b4 d5 g4 Kd7 e5 Kc7 c6 Kb6 c3 h3 e6 h4 e7 d4 e8B h2 g5 a4 g6 h3 g7 a3 Bg6 a2 Bc4 Qh4 Qe1 Qh7 Qh4 Nh6 Be8 Nd7 Bef7 Ne5+ Kf2 f3 Kg3 f2 Kf4 f1N Kg5 f4 Kf6 f3 Na3 f2 Bd2 Bf5 Bfe6 Re8 Bd7 Ng6 Nf3 Ne3 Bd3 f1Q Rd1 a1Q Rg1 h1B Rg5 Be4 Rc5 h2 Qf4 Nc4 Qg5 Ka7 b6+ Ka6 Nb5 Nb2 b7 Bf5 b8R Re1 Re8 Kb6 Rc8 Qa8 Nc7 Be4 b5 Ka5 Ne6 Qg1 Be2 Bc2 Bd3 Rf1 Qf4 Qe3 Be1 Qc1 Bd2 Bg2 Qf5 h1N Rb8 Nf2 Rd8 Nhg4+ Kf7 Rg8 Ke8 Bh1 Qf6 Nh6 Rc8 Rh8 Kd8 Be7+ Kc7 Re8 Rb8 Bf8 Rc8 Re7 Kd8 Ne4 Rb8 Nf2 Nc7 Re6 Kc8 Re4 Ne6 Be7 Kc7 Ree1 Rh8 Qa7+ Kc8 Bf8 Kd8 Qa8+
3rN1n1/1rR2P2/b4b2/3kn2n/rb1P4/QPr3qp/KN2R1P1/1Bq2RBB w - - 0 1 illegal: Other
1N1b1B2/2n1P1P1/1qq1NKQR/1b1N1BnR/rPRn2b1/3b1q1r/P2p2k1/8 w - - 0 1 illegal: No proof kernel
2b3rB/1r1p4/1Pr1PP1K/R1q5/1r2nPRq/Nk3n1b/1bN1B1B1/5QnN w - - 0 1 illegal: No proof kernel
7r/KRP1B2n/qB2P3/R3q1bN/3P1rR1/3b1p1b/N1k3BP/q2nn1Qn w - - 0 1 illegal: No proof kernel
3QRnqb/2pP3B/1P2nr2/2b1n3/NPB1P3/rq4Bq/2k1K2R/2Nq2Rb w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 g4 Kd6 b4 f5 b6 a5 g5 h5 g6 f3 g7 f4 e3 f2+ Kd2 f3 Nc3 a4 Qb3 a3 Kd1 a2 Kd2 h3 Rh2 h4 Be2 f1Q Rg2 f2 Qa3 h2 Ba6 h1Q Bb7 h3 Qb3 h2 Rg6+ Nf6 g8B Qh3 Bh7 f1Q Rh6 Qff3 Bg6 Ng4 Rb1 a1B Qb2 Ne5 Na4 Nbd7 Ba6 Bb7 Ne2 Qf7 Rh5 Rh6 Bh7 Rf6 Bc4 Qg1 Qc3 h1N Qd3 Ng3 Bb2 Qb8 Nc1 Ne4+ Ke2 Ng5 Bc3 Ra7 Be1 Ne6 Bg3 Be7 Qd2 Qbg8 Rh4 Ndf8 Rh6 Kd7 d6 Kc6 d7 Bc5 d8R Bb2 Ra8 Kd6 Ra1 Bh1 d5 Bbd4 e4 Bc3 Nb2 Ra3 Na4 Bb2 Re8 Bbd4 Nb3 Qb1 Qg5 Qd7 Nc1 Qb3 Rh4 Rf3 Rf4 Nf7 Nd3 Bh8 Qd8 Rf1 Rd1 Rf3 Nc1 Ke5 Re1 Kd4 Rg1 Ne5 Rf6 Rf1 Rf2 Qd6 Rh2 Rf6 Nb2 Qd7 d6 Kc3 Na4+ Kc2 Nc3 Qe7 d7 Qd6 Na4 Qd1+
N7/1PrB3n/rBR1qbN1/p1r2q2/bk1qPnP1/1P4Q1/5N1R/nK2R2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 e4 Kd6 d4 c5 Kd2 a5 Kc2 f5 b6 h5 b7 h3 b3 h2 Bh3 h4 Bd2 c4 Nc3 f3 Bc1 f2 Kb1 f1N Nge2 f4 Qd3 f3 Na4 c3 Nb6 c2+ Kb2 f2 Bd2 c1R Rb1 Bd7 Bh6 Ne3 Ng1 f1Q Bg2 Ne7 Nh3 Nc2 Be3 Qf5 Nf2 h3 Bf1 Ra6 Na8 Na1 Ka2 Rcc6 Re1 Ng6 Kb1 Rh7 Qc3 Rc8 Bb5 Be7 Ba4 Bf6 Qc7+ Ke7 d6+ Ke6 d5+ Ke5 Bg5 Kd4 Bc6 Qg8 Be3+ Kc3 Bb6 Be8 d7 Kb4 d8N Nd7 Nf7 Ndf8 d6 Rg7 d7 Nh7 Ne5 Qge6 d8R Rf7 Bd5 Ba4 Rf8 Re7 Qd6+ Rc5 Bc6 Rf7 Qd3 Nf4 Rb8 Rd7 Rd8 Rf7 Ng6 Rd7 Rc8 Rf7 Rhg1 Rd7 Rg2 h1Q Rd1 h2 Qg3 Rf7 Be8 Rg7 Rc6 Rc7 Bd7 Qf1 Rc1 h1R Rh2 Qfc4 Re1 Qd4
1b6/1P2Nr1B/q2p3P/1KRbPb1N/2n2rRr/4k1B1/NP5Q/1qrn1qR1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 h4 Ke4 b6 a5 c3 g5 h6 f5 h7 d3 h5 f3 e3 f4 b7 g4 Na3 d2 Rh3 f2 Qe1 d1B Nb1 a4 Be2 f1R Rh4 a3 Nh3 g3 Ng1 a2 Rg4 g2 Rg7 f3 Qf2 Bb3+ Kb5 Ne7 c4 Nd5 c5 Qf6 c6 Bd6 c7 Nc6 Nh3 g1R Nf4 Ne5 Rg4 Nc4 Qh2 f2 Bd3+ Kf3 e4 Ra4 e5 Nde3 Bc2 Nd1 Nc3 Qh6 Rb1 a1Q Na2 Rf8 h8N Rf7 Nhg6 Rh1 Qg1 Rh4 Qh2 Re1 Bf5 f1Q Ne7 Qg6 Be3 Qf6 Rc1 Qb1 Bf2 Qe6 Bg3 Ke3 h6 Nb6+ Bd3 Nf2 Nc6 Qg2 Rc5 Bd5 Nh5 Raf4 Rc1 Nc4 Rc2 Rc1 Rd2 Qh1 Bh7 Nd1 Ne7 Qf1 Rf2 Bc5 Rd2 Ba7 Rg2 Bb8 Rg1 Qa6+ Kc5 d6+ Kb4 Bce6 c8R Qa8 Rc5 Bf5 Kb5 Qa6+
2R5/1PB1b3/kp3n2/1nP3P1/4Qn1r/q1r2Bn1/PNBKb2N/qbNR2q1 w - - 0 1 illegal: No proof kernel
5n1N/p3RNQP/1NB1bqnB/K3R3/2Prqb2/q1k1r3/4P2P/R2b2nq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Kf6 b4 Ke5 h6 g5 h7 d5 b6 f5 b7 f3 b5 f2 b6 g4 Qc2 f4 Qb2 g3 Bg2 f1Q Qc3 f3 Qb4 f2 Kd3 Bd6 Kd2 d3 Kc3 d4+ Kb3 d2 Ka4 d1Q+ Kb5 d3 Nc3 Kd4 Na4 d2 Nh3 Qh4 Ng5 Qe4 Rg1 Ne7 Ka5 Bf4 Nf7 Re8 Nh8 Ng6 Qe7 Nd7 b8N Qb3 b7 d1B Nb6 Ndf8 Nc6+ Kc3 b8R Be6 Rb7 Rad8 Qg7+ Rd4 Re7 Qb2 Bh1 g2 Ne5 Qe1 Nef7 f1Q Be3 Qff3 Rf1 g1N Rf2 Qh3 Rg2 Qh6 Rg5 Qhh4 Re5 Qf6 Bc1 Qf1 Bf3 Qg2 Be3 Qh1 Bc1 Qb7 Bc6 Qa3+ Ba4 Qbe4 Be3 Qb3 Bc6 Qa3+ Kb5 Bc8 Rc7 Qef5 Rc5 Bg3 Bh6 Re3 Re5 Be6 Rd7 Bf4 Re7 Qb3+ Ka6 Qfe4 Ka5 Qa3+
5Qbn/p1bP1b2/n2bK1R1/5nBq/1N1B2PR/1Br2PkP/2q2N2/2q1N2r w - - 0 1 illegal: No possible last move, all moves rejected
1KB1N2N/R2q3k/p6N/r4PB1/1r1b4/1PP1QbnR/2rr1RrP/n2n3r w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 e5 Kc4 g5 Kd5 Kg7 f4 d3 b6 g3 b3 g4 b7 g2 c3 d2 Ba6 e4 Qe2 d1R+ Qd3 e3 Bd2 e2 Nh3 e1R Be3 g1R Ra5 g3 Na3 g2 Ng5 Re2 Nb5 Rh4 Nc7 Nc6 b8R Bc5 Nf7 Bb7 Qd2 Nd4+ Ke5 d5 f6+ Kg6 Rb5 Ne7 Ra5 Nef5 Rc8 Qd7 Rh8 Ng3 Ne8 Nc2 Qc1 Bc6 Bc8 d4 Ra3 Rg4 Rh3 d3 Nh6 d2 f5+ Kh7 f7 Bf3 Ra6 Rge1 Rf1 g1R Rf2 Na1 Ra3 Rb4 f8N+ Kh8 Ra4 Rg2 Ng6+ Kh7 Nh8 Rh1 Ra5 Qb5 Ke6 Bd4 Kd6 Qd5+ Kc7 Qe6 Qa3 Rc1 Ra6 d1N Bg5 Rcc2 Qc1 Qd5 Qe3 Red2 Rc6 a6 Rd6 Rab8 Rd7+ Qf7 Re7 R8b5 Rd7 Ra5 Re7 Rc4+ Kb8 Rca4 Rc7 Qd7 Ra7 Rb4+
1N1n2B1/B1PQn3/KqpRrk1b/b1PPnn2/1R2nN2/1nB4P/N6b/6r1 w - - 0 1 illegal: No possible last move
qn1NnR1b/Pn2PBp1/kr6/1r2b1N1/2n2N2/B1P2P2/1nQnb3/R3K2R w - - 0 1 illegal: Other
3r3n/2Qb2Br/2N2b1P/1n1BRP1b/Nn2RN1q/1P5n/Kp1kPb2/4b2R w - - 0 1 illegal: No proof kernel
5KN1/r2bqP2/Prq2Q2/3Bq3/1b1pR1R1/2P1Pq1k/NB1nq2n/1NR4q w - - 0 1 illegal: No possible last move, all moves rejected
n2N4/bR1bN1rk/P2Rb2n/rB4K1/1Pn5/Q2P1p2/bnqRPr2/5BB1 w - - 0 1 illegal: No proof kernel
Q2b1R2/3qP3/KBP1k2n/RR1n2Pp/Nr2N3/1rnBrbN1/1b1rP2n/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kd2 Ke7 Kd3 a5 Kc4 h5 b4 d5+ Kc5 f5 c4 d3 g4 a4 b6 a3 Kb5 f4 c5 d4 e6 h3 b7 f3 c6 f2 g5 a2 Bb2 h2 Qd2 Ra4 Bh3 f1N Nf3 Nh6 Nh4 Na6 b8N Qd7 Bf5 Nc7+ Kb6 Rh7 b5 Rb4 Na6 Nd5+ Ka5 Bg7 b6 Bf6 b7 Rg7 Qc2 d2 b8R d1N Nc3 d3 Na4 d2 Bd3 N1c3 Rb5 d1R N6c5 Rd2 Ne4 Rh7 Rg1 h1R Rg2 Rg1 Rf2 Rg3 Qc1 Nh2 Nf5+ Kf8 Qg1 Re3 Nfg3 Ke7 Qd1 Rh8 Qb3 Rf8 Qa3 Re8 Rf5 Rf3 Rf1 a1B Bc1 Bb2 Qa1 Rc2 Be3 Rd2 Bb6 Re3 Nec5 Kd6 R1f4 Bd8 e7 Rh8 Nce4+ Ke6 Rf8 Rh7 R4f5 Rf7 Qf1 Rf6 Qf4 Rb3 Qb8 Rf7 Qa8 Rf6 Rf1 Rf4 Ra1 Rh4 Nd6 Rd4 Nde4 Rdb4 Bc2 Qd6 Bd3 Ke5 Nac5 Bg4 Ka6 Qd7 Raa5 Bf3 Na4 Ke6
2bK1qB1/2n1Q1b1/n6P/3Rq1rn/nNpN4/4B1Pb/P2N1R1P/1b2kBr1 w - - 0 1 illegal: No proof kernel
2qQn2b/1BBR1PP1/1PN4q/4qb1N/2n1rR2/p1nrn1R1/4N1P1/k1K4q w - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 Ke6 c4 h5 b4 a5 f5+ Ke5 b6 d5 f6 d3 b5 Kd4 b7 e5 b6 a4 c5 a3 c6 h4 c7 h3 g6 h2 f7 e3+ Ke1 d2+ Ke2 e4 Ra2 Rh4 Qc2 d1N Bb2+ Nc3+ Ke1 e2 Kd2 e3+ Kc1 Nf6 Qf5 e1Q+ Kc2 e2 Qd7 Bg7 Qb5 Nc6 b8N Ne5 Nd2 Re4 Qd7 Qh4 Kc1 Bh8 g7 Nc4 Nc6+ Kd3 Qe8 Bf5 c8R d4 Rc7 Qh6 Rd7 Qc8 Qd8 Ne8 Ba1 Ra7 Rb2 Ra5 Rb4 Rd5 Ra4 Nd1 Bb2 Nde3 Bc3 Rd6 Bb4 Rd5 Bd6 Kc3 Bc7 d3 Rb4 Nd1 Ra4 e1Q Be2 Qg3 Bf3 Nde3 Nf1 Qe5 Ng3 Rdd4 Nh5 d2+ Kb1 d1N Ne2+ Kb3 Kc1 Nc3 Rd1 Ka2 Rd3 Ka1 Rb4 Nf1+ Re3 h1Q Ra4 Rf4 Bd5 Rd3 Rg3 Ncd6 Rb4 Rg4+ Rf4 Nc4 Nb8 Rh4 Bb7 Rg4 Nc6 Nfe3+ Rf1 Qh2 Rf2 Re4 Rf4 Qh1+
nr4BB/3k3N/1r3P1P/Pqqr1Nn1/3r3p/1N5P/q1n1K1RR/Qb1r1B2 w - - 0 1 legal: proof: e4 f5 exf5 c5 g4 h5 d4 cxd4 b4 a5 g5 axb4 Ba3 g6 Bc1 Bh6 gxh6 Qc7 Ne2 Qa5 Ng1 Qd8 f4 e5 a4 b5 c4 d5 f6 e4 h3 g5 f5 b3 f7+ Kd7 a5 h4 c5 b4 Qg4 b2 Rh2 b3 Qh5 g4 Qg6 g3 Re2 d3 Qf6 d4 Qg6 d2+ Kd1 g2 Qb6 e3 Qb4 Qe8 Ra4 Na6 Qb7+ Nc7 Ra2 Rb8 Na3 b1R Qb6 b2 Qa6 Na8 Nf3 g1Q Rg2 Nf6 Nc4 Nh7 Nd6 Ng5 Ke2 d1R Nd2 Bb7 Qb6 Be4 Nb3 Qe5 Bd2 Rhd8 Bc3 Qd5 Rh2 Qb7 Qb4 Qb5+ Qc4 Rd3 Qa4 Rb6 Rg2 Rdb8 Qa3 Rbd1 Qa4 b1Q f8N+ Ke7 Rb2 Qa2 c6 Kd8 c7+ Ke7 Nh7 Kd7 Rh2 R1d2+ Ke1 e2 c8B+ Ke7 Bb7 Kd7 Bb4 Qe3 f6 Bg6 Bd5 Qe5 Bg8 Qc5 Ba3 Rd1+ Kf2 e1N Nf5 Nc2 Rg2 Qe5 Bf8 Qc5 Bg7 R3d2+ Be2 d3+ Qd4+ Rd6 Rh2 Rd5 Rg2 Rb1 Bh8 Rdd1 Bf1 d2 Rg4 Rdc1 Rg2 d1R Rh2 Rd3 Ke2 Rcd1 Qc3 R3d4+ Kf2 Nb4 Ke3 Rb6 Rbg2 Rb8 Qa1 Rb2 Ne7 Bb1 Nf5 Nc2+ Kf2 Qbb4 Ke2 Qba4 Nd2 R2b6 Nb3 Qab5+
2q5/R1NN3k/1PN1b1r1/2r2Rr1/Rr5B/bp1q1P2/1PBPQbb1/nKq5 w - - 0 1 illegal: No possible last move, all moves rejected
q2kn3/3n2Pr/PR4NQ/n1p1r3/K2NP1r1/3N4/RRP2Brr/1B2nb1r w - - 0 1 legal: proof: g4 a5 d4 g5 h4 e5 dxe5 f5 b4 axb4 Be3 Be7 Bf4 fxg4 Bc1 g3 Qd4 g4 Qd1 Bg5 hxg5 Kf8 Bf4 Ke7 Bc1 Ke8 Kd2 d5 a4 b5 f4 h5 e4 c5 g6 h4 e6 g2 a5 g3 g7 d4 a6 h3 f5 b3 f6 h2 e7 d3 Kc3 b4+ Kb2 d2 Ra4 Nd7 Ra2 Rh7 Qe2 d1N+ Ka1 Nf2 Kb2 Nd3+ Ka1 Ne1 Nf3 g1R Kb2 Rg2 Qe3 Ra7 Rg1 h1R Bc4 R1h2 Nc3 Rb7 Nd4 Rc7 Kb1 b2 Na4 Rc6 Qg5 Re6 Qh6 Re5 Be3 Rd2 Bf2 g2 Rf1 g1R Bd5 Rg6 Rg1 Rg4 Rg3 Re2 Rb3 Rd2 Bg3 Rdg2 Bf2 Bb7 Bc4 Bc6 Bd5 Bb5 Bc4 Nb8 f7+ Kd7 e8R Nf6 Rh8 Ne8 f8N+ Ke7 Bd5 Bf1 Ng6+ Kd7 Bc4 Kc8 Rf8 Nd7 Rf6 Kc7 Rb6 Qa8 Raa3 Kd8 Ka2 b1R Nb2 Rc1 Nd3 Rd1 Rb1 b3+ Kb2 Rc1 Ra2 Rd1 Ka3 b2 Ka4 Rc1 Rba1 b1N Rab2 Nd2 Ba2 Nb3 Bb1 Na5 Raa2 Rd1 R2b3 Rd2 R3b4 Rh1 Rbb2 Rgh2 Bg1 Rdg2 Be3 Rf4 Bf2 Rfg4
r2b2b1/1rB1bP1Q/PRr1b3/1pR2Kn1/2N2BN1/1Pk4N/B4n1P/r4b1b w - - 0 1 illegal: No proof kernel
b4k2/8/2N1P1KP/b2p1qn1/p1Rr2B1/P1P3r1/qQR2b2/RnNB1Bqn w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 b5 Ke3 d5 Kf4 a5 h4 a4 e4 b4 a3 b3 h5 b2 c3 g2 c6 g3 f3 Nh6 e6 Qd7 Kg5 Nf5 c7 Bb7 c8B Bb4 f4 Na6 e7 Ba5 e5 Nc5 Qd2 Ne4+ Kg6 Ng5 Nf3 g1B Rh2 g2 Nd4 Ng3 f5 Nh1 f6 Bf2 Nc6 g1Q h6 Rg8 Qe2 Rb8 Nd2 b1N Nb3 Ba8 Qb2 Rb4 Nc1 Rd4 Rg2 Qh3 Bg4 Qgh2 Bd1 Bg1 Rc2 Bf2 Bg4 Qh5+ Kf5 Kf7 e8B+ Kf8 f7 Qg2 Bd1 Qhh3+ Kg6 Qf5+ Kh5 Qge4 Bg4 Qe2 Bd7 Qc4 Bd1 Qa2 Be6 Qf3+ Bg4 Qf5 e6 Rb4 Bfe2 Qf3 Nd8 Nh3 Bf1 Ke7 f8R g5 Rf5 Rc4 Re5 Qf5 Re4 Kf8 Bgf3 Rg7 Nf7 g4+ Ng5 g3 Rd4 Qe4 Nf7 g2 Nd8 g1Q Nc6 Rg3 Bg4 Qf4 Kg6 Ng5 Rd3 Re4 Rd4 Qe5 Rb4 Rd4 Rc4 Qf5+
R5n1/q1qBnr2/2p1bk2/P3qPpr/1NPn4/2N3PB/b1QBN2r/2KR4 w - - 0 1 legal: proof: e4 a5 d4 e5 b4 axb4 dxe5 f5 h4 fxe4 h5 g6 h6 Bg7 hxg7 Qf6 Bb2 Qe7 Bc1 Qd8 Kd2 Ke7 f4 h5 a4 d5 c4 b5 f5 d4 g3 e3+ Kc2 h4 e6 b3+ Kb2 d3 a5 g5 Qe2 b4 Qf2 e2 Qf4 e1Q Qf3 h3 Ra4 h2 Bd2 Qe5+ Nc3 Nc6 Qh5 Nd4 Qh7 c6 Bc1 d2 Bh3 d1N+ Kb1 b2 Bg4 Qdc7 Bd2 Kf6 e7 Be6 e8B Ne3 Nge2 Ra7 Bd7 Nd5 Bh3 Nde7 Rd1 h1R Qh4 Rh2 Qe4 Rh5 Qc2 Rb7 Ra3 Ra7 Rb3 Rb7 Ka2 b1B+ Kb2 Ba2 Kc1 Rb8 Rb2 b3 Rb1 Rf8 Rb2 Rf7 Rb1 Nh6 g8N+ Kg7 Nf6 Nhg8 Nfd5 Qa7 Nb4 Kf6 Bf4 Nf3 Rd5 Nd4 Bd2 Qac7 Rb5 Qa7 Rb8 b2+ Kd1 Qac7 Rc1 b1Q Ra8 Qb3 Ra1 Qa7 Kc1 Qec7 Rb1 Qa4 Kb2 Qb5 Rd1 Qbc5 Kc1 Q5e5
r3BN2/8/PPP1R1bq/Qpq1nr2/1bb1R3/1R1nr1Nk/2pB3P/1q1N3K w - - 0 1 illegal: No proof kernel
2R1bnB1/1N2nrPn/6q1/1PBNbP2/1Q2b1k1/1K1PB1p1/1N3p2/2qr2qR w - - 0 1 illegal: No proof kernel
3nNqrQ/2NB2Pn/1BBN1P2/Kb1R2bq/1p1Pb1P1/4k3/3nr2p/1qR5 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kf7 Kd2 Kg6 g4 e5 a4 b5 f4 c5 d6 h5 d7 c4 a5 h4 a6 e3+ Kc2 c3 Kb3 e4 a7 h3 Rh2 c2 Qd2 e2 Nc3 e1N Qe2 e3 Ra5 Be7 Nf3 Nc6 Ne4 Ba6 Nf6 Qf8 Bd2 c1Q d8N Qc5 Rh1 h2 Ne6 Re8 a8B Nd8 Nc7 Qf5 Qc4 e2 Bc6 Qc5 Bc3 Qd5 Nd2 Nf3 Nde4 e1Q Nd6 Nd2+ Kb2 b3 Ka3 b2 Kb4 b1B f5+ Kg7 g6 Kh6 g7 Kg5 Bg2 Kf4 Bd7 Be4 Qb3 Qb1 Rc1 Ke3 Bf3 Bd3 Bg2 Qdf7 Bgc6 Qh5 Qb2 Be4 Qb3 Nb7 Qb2 Bd8 Qb3 Re6 Nfe8 Bg5 Qb2 Nd8 f6 Nh6 Qb3 Nhf7 Qb2 Rg8 Qb3 Qa2 Qd5 Qa1 Qf5 Re7 Qh7 Re5 Qh8 Qb1+ Ka3 Re7 Bb4 Re5 Bc5 b4+ Ka4 Re6 Ba7 Bad3 Rf5 Bb5+ Ka5 Bh4 Nb7 Ng5 Bb6 Nh7 Nbd6 Bg5 Rd5 Re5 Ne6 Rf5 N6c7 Rf2 Bb7 Rg2 Bbc6 Re2
7n/bBB1P1kN/1rR1P3/Qq2RKN1/b1n2B2/p1qP1P2/2pr4/1N1q1br1 w - - 0 1 illegal: No proof kernel
B1K3b1/NpQ1bpkr/n1P5/n4RN1/1P1bPn2/2PrqBr1/q5B1/1R1R4 w - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 dxc5 a5 b3 e5 fxe5 a4 Bb2 a3 Qd2 axb2 Qc1 Nf6 Qd1 Ng8 Kd2 g5 Kc3 d5 Kb4 g3 Kb5 g4 a4 d4 h4 d3 a5 g2 e6 d2 b4 g3 a6 Ke7 h5 Kf6 a7 Qe7 Kb6 Qe8 Kc7 Bd7 c3 Bb5 h6 Bd3 e7 Bh7 Nf3 g1N Na3 b1Q Nb5 Qa2 Rb1 g2 Qe1 d1R Qg3 Nh3 e4 g1B Bg2 Rd3 Qh2 Bf2 Rhd1 Qe2 Qg3 Bd4 Qh2 Qe3 Qg3 Bf5 h7 Qc6+ Kd8 Qe6 Qh2 Qa2 Qc7 Nf4 c6 Nh6 e8B Ng4 Bd7 Ne5 Be6 Nc4 Bd7 Bg6 Bg4 Na5 Bh5 Rg8 h8R Na6+ Kd7 Rc8 a8B Be7 Na7 Bh7 Bg4 Rg6 Rg8 Rh6 Rg5 Rg8 Rc5 Rg7 Kc8 Bg8 Rf5+ Kg6 Bh5+ Kh7 Bg4 Rg5 Bh5 Rg3 Ng5+ Kg7 Bhf3 Rh7
3Nbnb1/k2nbQ2/B2RPPP1/pr6/R1K2bn1/4N1p1/1BR3Pq/b1N2r2 w - - 0 1 illegal: No proof kernel
rN4Rn/1N2BBP1/p4bP1/1Bn2RP1/qpb1KnP1/5r2/5k1b/3Qn1nR w - - 0 1 illegal: Other
b3B3/1Kpb2b1/4rQR1/3n2NP/1NR3B1/1rP1nPBP/rbq1kp2/3N1b2 w - - 0 1 illegal: No possible last move
3r1nnn/1P1N1b1P/k1r3R1/r1BR3P/6Bp/r1p1P3/2q1K2B/Nr1Rb2Q w - - 0 1 illegal: No proof kernel
n2BN3/nP6/Pr1p3P/RP1k1N2/R2r1bBB/5K2/b1b1npr1/r2Q1N1q w - - 0 1 illegal: No proof kernel
2N1nB1K/P7/rr1B1q2/1pb1pN1b/1b3P2/R2BbRrP/nQP3k1/2n2R2 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Kd3 Kf6 Kd4 g5 a4 d5 f4 e5+ Ke3 g3 h3 g2 c6 b3 c7 d4+ Ke4 d3 a5 d2 a6 b2 Nf3 g1B Rh2 g4 Be2 g3 Ra3 g2 Re3 Nd7 Nc3 b1R Na4 Bb4 Ra3 Bgc5 Rh1 g1B Nd4 Be3 Rf1 b5 Qe1 d1N Qc3 Rh6 Bd3 Rb3 Qb2 Rg6 Nb6 Nc3+ Kf3 Rh6 Kg4 Na2 a7 Rb8 Bd2 Bb7 c8R Bf3+ Kg3 Bh5 Kh4 Qe7 Rc6+ Qe6 Nc8 Rc3 Rca6 Rb6 Rb3 Rg6 Raa3 Rg3 Nc6 Rc4 N6e7 Rd4 Be1 Rdd6 Bc3 Ra6 Bd2 Rdb6 Bc3 Kg7 f6+ Kh6 f7 Ngf6 Nf5+ Kg6 f8B Ne8 Be1 Kf6 Bd2 Qf7 Bc3 Ke6 Bd4 Kd5 Rc3 Nb8 Bd6 Nc6 Bf8 Na5 Bd6 Rf3 Kg5 Nb3 Kh6 Qf6+ Kh7 Nbc1 Bf8 Rg3 Rcb3 Bd6 Bc5 Be7 Bd6 Bbc5 Be2 Ke4 Rc3 Bf2 Bd3+ Kf3 Rcb3 Kg2 Rc3 Qe6 Kh8 Bb4 Bb8 Bec5 Bbd6 Bg1 Be2 Bgd4 Rcf3 Be3 Bd3 Qf6+
qr5k/3n2n1/3BB2P/qb3RPp/2QNbK1P/R4R1p/1Pn1N3/r3n1Bb w - - 0 1 illegal: No proof kernel
1B1b3R/1QK1BB2/R4P2/1NNbr2b/4Pk1p/4nnp1/PqPR4/2n1qr1b w - - 0 1 illegal: No possible last move
2q1Bq2/r1NR1nn1/1bP3Rb/bP3kPB/p7/P2K1pB1/2Qqr2N/2N4q w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 b5 Rh2 bxc4 Rh6 Bg7 Rh1 Bf8 d3 c5 Rh6 c3 Rg6 c2 Rc6 c4 Rh6 c3 Rh5 Ba6 Rh1 Bc4 dxc4 Qa5 Qd3 Qb6 Qd1 Qd8 e4 Ke7 Ke2 Ke6 b4 f5 g4 d5 a3 a5 e5 h5 b5 h4 c5 h3 c6 h2 g6 d4 g7 d3+ Kf2 a4 g5 d2 Ke2 f3+ Ke3 f2 Ra2 f4+ Ke4 Ne7 g8N Qc8 Qf3 d1Q Be2 f1Q Nd2 Nf5 Kd3 Nd7 Ne7 Ra7 Nd5 Ng7 Qg2 Kf5 e6 Rh3+ Nf3 Ne5+ Kd4 Rh4 e7 Nf7 e8B Rh6 Ra1 Re6 Kd3 Re5 Bb2 c1B Nc7 c2 Ra2 Qde1 Nb3 Be3 Nc1 Bb6 Ra1 Re6 Be5 Qff2 Rf1 h1Q Nh2 Re7 Bh5 Qed2+ Kc4 Re6 Re1 f3 Bg3 Re2 Rd1 Qdd8 Rd7 Qfe1 Rb1 Qd2 Rb3 Qf6 Re3 Qfd6 Re6 Ba5 Nd3 c1B Rg6 Bb2 Qf2 Bd4 Nc1 Bdb6 Qg2 Ne6 Qf2 Bh6 Qg2 Qf8 Qf2 Qb2 Kd3 Ng7 Qg2 Re5 Qc2 Re2 Rd8 Qbb4 Rd7 Qd2+
2B5/b5Rr/1nP1p1br/5Rqk/qP1R2r1/QpbP4/4KPnB/1Br3NN w - - 0 1 illegal: No proof kernel
Qq1B1q2/b7/2pRr2K/P1R1r1PB/P5NR/Nbp2P1B/n2nbr2/k5r1 w - - 0 1 illegal: No possible last move
bq2bb2/1r4RB/1P1k3P/1qn1N1RK/1n1N2p1/1nQN1PP1/1Bpr3B/1b6 w - - 0 1 illegal: No proof kernel
N4B2/1Rq3b1/1P3Pbr/n1P1p2n/3r1Rq1/bnK1PN2/1Qp2B1N/b2k2B1 w - - 0 1 illegal: No proof kernel
BNBqrb2/3n2qQ/P2P2p1/1k4Nq/1P1Br1rR/4pnP1/2K1b1r1/R5R1 w - - 0 1 illegal: No proof kernel
R1q2BrQ/N1r2PR1/2B3R1/bPp1N3/r1bqp1qK/5P2/k2nPB2/q3n3 w - - 0 1 legal: proof: g4 b5 h4 g5 a4 gxh4 axb5 d5 c4 f5 gxf5 dxc4 d4 Kd7 b4 Kd6 d5 h5 b6 e5 f6 a5 b7 c3 b5 Kc5 f3 Kc4 Kf2 c2 d6 Kb3 f7 a4 d7 a3 Be3 h3 Kg3 h4+ Kg4 a2 Bh6 h2 Qc1 Na6 b8B Nc5 Qe1 c1R Bg2 Nd3 Ba7 Bb4 Nh3 Ba5 Rg1 h1Q Nf4 h3 Na3 h2 Nc2 Nf6+ Kh4 Rg8 Bh3 Qg2 Bf2 h1Q Ng6 c6 Qf1 Ne1 Bf8 Kb2 Nb4 Ne4+ Ne7 Kb3 Nd3 Nd2 Rb1+ Ka3 Ra1 e4 Ne5 Qc7 d8R Be6 Rd6 Bc4 Rg6 Qc8 Rg7 Qg6 Rg4 Qd6 R4g6 Qg1 Bd7 Qd4 Qh3 Ra7 Qh1 c5 Qh2 Rc7 Bc6 Rb1 Qh1 Rb4 Qh2 Ra4 Qh3 Qb7 Nc8 Kb2 Na7 Qc8 Qg4 Qg2 Qh5 Ka3 Qh8 Kb2 Rc1 a1Q Rc3 Ka2 Rd3 Qdb2 Rd8 Qd4 Re8 Qb7 Rb8 Qc8 Ra8 Qgg4+
4qKN1/r1kPNBR1/2P2n1n/1Q2P1p1/1Nr1n3/2Pq1Rqb/1p1b2B1/2B3n1 w - - 0 1 illegal: No possible last move, all moves rejected
N4K2/1NP2nq1/1b1PPBq1/6r1/2bPBRn1/2p2p1R/2rrk1N1/R2n1rQ1 w - - 0 1 illegal: No proof kernel
k7/Brp1n3/B4Pr1/b1P1b1bQ/2N2N1r/1PnRpN2/Pq2rRq1/2R2K2 w - - 0 1 illegal: No proof kernel
1r5n/2p2kbr/4pP2/q2r1N1N/P2RB1R1/2NbP2K/P3QRnr/B4bq1 w - - 0 1 illegal: No possible last move, all moves rejected
qk1B4/1P3nK1/1R1p2nN/P1b2p2/P1b5/3r1Rrb/Q2BB1qP/2rNN1r1 w - - 0 1 illegal: No proof kernel
N2Nqr1R/Rp1b2b1/2q3P1/nK1Q3r/P2pq1P1/Bb1P2q1/k7/Bn1B3R w - - 0 1 illegal: No possible last move, all moves rejected
N1Rqrb2/1p6/PNp1rBP1/B2bP3/rPB1R2R/2K1b1n1/1n1r1k2/2qQ4 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 g5 hxg5 dxc4 Qc2 e5 Qa4+ Nc6 Qxa5 exf4 Qa7 Nb8 d4 Ke7 Kd2 Ke6 a4 Kd5 g4 Ke4 b4 f5 a5 h5 e3 c3+ Kc2 h4 g6 h3 d5 h2 g5 c6 d6 f3 g7 f2 d7 f4 g6 f3 Kb3 c2 Bb2 c1B Bc4 f1Q Bf6 f2 Kc3 Nh6 g8R Na6 Nh3 Kf3 e4 Nc5 e5 Nd3 Nf4 Be3 Nd5 Nb2 Na3 Nf5 Nb6 Ng3 Nb5 Qb1 Qa6 f1R Nc7 Kf2 Ra2 Ra7 Nca8 Rd1 Qb5 Rd6 Qd5 Re6 Qd1 Qa1 Re1 h1R Ra3 R1h5 Rh1 R5h7 Rh4 Rhe7 Re4 Rh2 Rh8 Re8 Rhh4 Qe7 d8B Rg2 Bc7 Qd8 Kc2 Rh2 Rd3 Qc1+ Kb3 Qe7 Rd8 Bd7 Rb8 Qd8 Rc8 Rd6 Rhg4 Kg2 Rh4 Be6 Nd7 Bd5 Bb6 Qb1 Kc3 Rde6 Qe2+ Kg1 Qd2 Re2 Qd1+ Kf2 Bc7 Ra6 Bb6 Rd2 Bc7 Rb6 a6 Rb5 Bb6 Ra5 Bc7 Ra2 Ba5 Ra4 Ndb6 Qc1+
4KB2/P1bN3p/1R1q2k1/2r2n2/3R1nq1/P1bP1Q2/3prn1P/bBBNb2N w - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 bxa5 f5 Be3 fxg4 Bc1 d3 c3 d5 Kd2 d4 Ke1 Bf5 Qc2 d2+ Kd1 Bd3 Qb3 Bb5 Kc2 d1N Kd2 d3 Bg2 Nb2 Ke3 d2 Bf1 Bd3 exd3 Nd1+ Ke2 Qd7 Bg2 Qc7 Bf1 Qd8 f4 b5 f5 g5 f6 e5 a3 e4 a6 e3 c4 Kf7 c5+ Kg6 c6 g3 Kf3 e2 Ke4 e1B Ke5 g2 Ke6 g4 a7 b4 f7 g3 c7 Bd6 f8B Ne7 c8N Na6 Nh3 g1B Qd5 g2 Bg7 b3 Bh6 b2 Bf8 Bc7 Nc3 b1Q Nb6 Nf5 Nd7 Rc8 Be2 Bd4 Rf1 g1B Qf3 Qb4 Rb1 Nf2 Nd1 Ba1 Rb2 Qg4 Rb6 Kh5 Kf7 Nb4 Bc5 Nd5 Bf8 Nh1 Nhf2 Nf4 Nb8 Qd6 Nd7 Nhg3 Nh1 Bgd4 Rg1 Ne4 Rg3 Kg5 Rh3 Nf2 Rh4 Bd8 Ke8 Bdc3 Ne3 Rc4 Bd1 Bc7 Bc2 Rc5 Bb1 Kg6 Nd1 Rg8 Rh6+ Kg5 Re6 Rg6 Re4 Re6+ Be7+ Kh5 Ra4 Re2 Rd4 Ne3 Bf8 Nf5+ Qe3 Kg6 Qe4 Ne6 Qf3 Nf4+
7R/P1qP2n1/3Nn1b1/b2pKP2/1rN1Rp1r/N1qq1P2/Q2B4/r1RB1rk1 w - - 0 1 illegal: No proof kernel
4RqN1/pBPk4/6PB/1r6/bQ1bpNnn/1nP1R1KN/1b1R3P/4rn1q w - - 0 1 illegal: No possible last move, all moves rejected
1KB2R2/bN3Pqq/1bQ1qqkB/N1p5/b1PN3P/rP1nr3/2B4p/4q2R w - - 0 1 illegal: No possible last move
b1rr2q1/pB2qpn1/PnRNqk1B/Q1qR1B1P/NP2r3/2Pq4/8/4NK2 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 b5 Kf2 bxc4 Ke1 h5 gxh5 c3 b3 c5 Kf2 c2 Qe1 c4 Ba3 c1R Qd1 c3 Ke1 c2 Bg2 Bb4 Bf1 Bc3 dxc3 Bb7 Bh3 Ba6 Bf1 Bc8 h4 d5 e4 g5 h6 g4 h5 d4 e5 d3 h7 g3 b4 Ke7 e6 f3 Bg2 f2+ Kf1 d2 Nf3 Bb7 Ne1 Bc8 Bb7 Kf6 e7 Bd7 e8B Bc6 Bd7 Ne7 Bf5 Nd7 Qg4 d1Q Nd2 Be4 Nb3 Qd5 Nc5 Nb6 Na4 Qe6 Bb2 Rg8 h8N Rc8 Ng6 Rh8 a3 Qg8 Nh4 Rd1 Bc1 Rd4 Bd2 c1Q Bh6 Qe3 Qf3 Bc6 Qd5 Re4 Qa5 Qc5 Rd1 Qg5 Rd4 Rhd8 Rg1 Qe3 Rd5 Qg5 Bg6 Nf5 Bh7 Ng7 Nf5 Qce7 Nd6 Qgg4 Bf5 Qg6 Ba6 Ba8 Bb7 Qh7 Rh1 Qg8 Rh4 Re2 Rc4 Re5 Rc6 Re4 Be3 g2+ Ke2 g1Q Nc5 Ne8 a4 Rh4 Qb5 Rh3 a5 Ng7 a6 Rh4 Na4 Re4 Qa5 f1Q+ Kd1 Qh3 Ke2 Qgg4+ Kf2 Qe2+ Kg1 Qb5 Bh6 Qhd3 Kf2 Qc5+ Kg2 Qb1 Kf1 Qd3+
2N2k2/2q2PRn/p1Nr3q/N3K1pR/3Q1rr1/P3R1Pn/2nnB1P1/1Bn2b2 w - - 0 2 legal: proof: b4 f5 e4 fxe4 Qe2 e3 Qd3 c5 bxc5 e6 Qe2 Bd6 Qd1 Bg3 Bb2 d6 Be5 dxe5 hxg3 e4 Ke2 b5 c4 h5 f4 g5 d4 h4 f5 e5 c6 h3 d5 b4 f6 h2 c5 b3 d6 b2 a3 Ba6+ Qd3 Kf8 d7 Ne7 c7 Rh4 c8B Nd5 c6 Nf4+ Kd1 e2+ Kc2 e1R Kc3 e3 c7 e4 Kd4 e2 f7 e3 Qd2 Rd1 Nc3 e1N Bd3 b1N Ke5 e2 Nd5 Rg4 Nf3 Bb5 Bc4 a6 Qe3 Rd4 Ne7 Nd2 Rc1 Ra7 Rc3 Rb7 Qe4 Rb6 Re3 Rc6 Bb7 Rb6 Ba2 Nc2 c8N e1N Bb1 Bf1 Ba8 Rdb4 Nd4 Rf6 Qd5 Qc7+ Qd6 Rh6 Bf3 Ra4 Nb3 Ned3+ Kf5 Re4 Na5 Nc1 Be2 Rg6 Qd4 Rh6 Rg1 h1Q Nec6 Qh2 Rh1 Rhe6 Qf6 Qh6 Rh5 Nh3 Qd4 Rg6 Nd6 Ref4+ Ke5 Kg7 d8R Nd7+ Kd5+ Rgf6 Nc8 Nf8 Rd6 Nh7 Ke5 Qa7 Rd8 Rd6 Re8 Qb6 Re6 Qc7 Rg6+ Kf8 Rg7 Rff6 Qb2 Rf3 Qd4 Rff4
2Q2bb1/1pPqq1k1/Bpb5/3n1Pr1/3P4/nK1n2R1/1P3Bnn/N1NRB2N w - - 0 1 illegal: No proof kernel
4rkr1/2pBbn2/3Br1P1/RN1K1b2/P4p2/1qR1B1R1/1PP1Q2N/q1rbr3 w - - 0 1 illegal: No proof kernel
B5q1/qr1Rn1k1/bNB4q/1PBp1pK1/1RPP1rb1/Q1rP1r2/7R/b3N3 w - - 0 1 illegal: No proof kernel
5KR1/1P2BRNn/4p2B/1k1pq1qB/N1nP1RqQ/1b1qP3/3bP1n1/6br w - - 1 2 legal: proof: b4 a5 a4 b5 g4 h5 Bg2 hxg4 Bh3 Ra6 Bf1 Re6 axb5 Re3 fxe3 c5 Ra3 cxb4 Ra2 Bb7 Ra1 Bc8 Kf2 g5 Kg3 f5 d4 a4 h4 a3 c4 f4+ Kg2 f3+ Kg3 b3 h5 f2 b6 a2 h6 b2 c5 Nc6 h7 Ne5 Bg2 f1Q c6 Qf6 Nc3 b1Q b7 d5 c7 Kd7 Nh3 Kc6 Be4 e6 Qd2 Bd7 Bf3 Bb4 Qe1 Nc4 Rf1 Qe5+ Nf4 Qbe4 Rb1 a1N Ba3 Nc2 c8R+ Kb6 Rc7 Ba4 Rf7 Bb3 Na4+ Kb5 Qf2 Bc3 Qh2 Qdf6 Be7 Qd3 Rf2 Bd2 Rg1 Qg7 Qh5 Nf6 Rff1 Rb8 h8B Ne1 Qh1 Qh6 Bg7 Rh8 Qh2 Qhg6 Qf2 Rh1 Bh6 Qh5 Qh2 Qhg6 Qh4 Nc2 Kg2 g3 Nh5 Qg8 Bg4 Qgg6 Kf3 g2 Ng3 Qg7 Bh5 Qgg6 Nf5 g4+ Kf2 g3+ Kf3 Ne8 Rf2 Qgf6 Kg4 Ne1 Rf4 Qg7+ Bg6 Nf6+ Kg5 Qg8 Rgf1 g1Q R1f2 Qh2 Rg2 Qh3 Rg1 Qh7 Bh5 g2 Rgf1 Qh8 Kg6 Qg3+ Rg4 g1B Rf4 Ng2 Rg5 Nd7 Rgg4 Qhf6+ Kh7 Qf3 Kg8 Qh3 Rg6 Qg5 Rgg7 Nf6+ Kf8 Qhg3 Rg8 Q3g4 Ng7 Nh7+
2Nbrb2/2n1RR1K/2R1P1Bq/1b1N4/1p2N3/qPQ1p2k/PBbP1r1r/3q4 w - - 0 1 illegal: No proof kernel
3q1krn/RP2p2P/2pQ2qN/2K3PR/2B4b/B1PN4/1Bn2q1R/1bb1nq2 w - - 0 1 legal: proof: f4 d5 e4 dxe4 a4 h5 g4 b5 axb5 hxg4 Na3 g5 Nf3 a5 Ng1 g3 Nb1 g4 Ne2 Rh5 Ng1 Rg5 fxg5 Ra6 Bh3 Rh6 Bf1 Rh8 Ke2 f5 Ke3 c6 h4 a4 d4 a3 b4 g2 h5 g3 b6 a2 h6 Be6 c3 Bg7 d5 Kf8 b7 Be5 h7 Na6 b8B Nh6 b5 Nb4 d6 Bf4+ Kd4 e3 d7 e2 b6 e1N b7 Rg8 Kc5 Nbc2 Bd6 Nf7 Nd2 Nh8 Ngf3 g1B+ Nd4 g2 Ne4 Bf2 Rh5 g1Q Bc4 Bh4 Bb2 Bc1 Nf2 f4 Nf5 f3 Nh6 Bf5 Qd5 Qg2 Nd3 f2 Qe6 f1Q Qg6 Qe8 d8R Qgf3 Ra8 Qd8 Ra7 Qe4 Rb1 a1Q Qe6 Qa2 Ra1 Qb1 R1a2 Qef4 Ne5 Na1 Kb4 Nb3 Ba1 Qd4 Rh2 Be4 Bb2 Na1 Bc5 Qc2 Qd7 Qcf2 Qd6 Bb1 Nd3 Nac2+ Ka4 Qb6 Bca3 Qd8 Kb3 Qe4 Ka4 Ne3 Kb4 Qg6 Kc5 N3c2+
3r2R1/2B2K2/1bNR1NPR/2k2P1B/4Q1r1/pPrb3p/Pnbb1q2/3Nb1b1 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Na6 Bc1 Nc5 Bh3 Ne4 Bg2 fxg4 Bf1 g3 Nd2 g4 Nb1 Ng5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 Ke7 Kc3 h5 Kd4 c5+ Kd5 a5 e4 h4 f4 c3 f5 c2 b3 g2 g6 h3 e6 g3 e5 c4 Bf4 c1R Qd3 a4 Nd2 a3 Ne2 g1B Qf3 c3 Be3 g2 Bh6 c2 Ng3 Ra4 Qe4 Ba6 Nb1 Bb6 Nc3 g1B Bf4 Bd3 Be2 Nh6 Nd1 Nf7 Bh5 Nd6 Ne2 Nc4 Nd4 Nb2 Rh2 Qb8 Rg2 Qa7 Rg5 Bh6 Rg4 Rd8 Rh4 d6 Bh2 Bd2 Rb1 Be1 Nc6+ Ke8 e7 Kd7 e8R Rb4 Qe3 Rg4 Rg8 Kc7 Ke6 d5 Ke7 d4 e6+ Kb7 Bf4 Ka6+ Bc7 Kb5 Kf7 Kc5 e7 Bf1 Qd2 d3 Qg5 d2 e8N Bb5 Nf6 Bd3 Ne3 d1B Qf4 Qa4 Qf3 Qf4 Qh1 Qf2 Ra1 Bf3 Nd1 Bfe4 Qg2 Rb1 Qh1 c1B Qf3 Bcd2 Qe2 Bg2 Qe4 Rc1 Rb1 Rc4 Rc1 Bgf1 Rc3 Bc2 Rd3 Rc3 Rd6 Rf4 Bf3 Bb5 Rh6 Bbd3 Bh5 Rg4
bb3B1q/1R1BbR2/p3b3/1K6/Np1BnPQ1/PP3R1r/1b1k1P1N/b2nq3 w - - 0 2 legal: proof: h4 f5 e4 fxe4 c4 b5 g3 d5 cxd5 g5 Be2 gxh4 Bf1 Na6 Qa4 Rb8 Qd1 Rb6 Nh3 Rf6 Ng1 Rf4 gxf4 Be6 Qe2 Bg4 Qd1 Bc8 Ke2 Kf7 d4 Kf6 a3 Kf5 b3 h5 d6 c5 d7 e5 d5 b4 d6 h3 Qc2 h4 Bg2 h2 Be3 c4 Nh3 c3 Bc1 Be7 Qd1 e3 Kd3 c2 Kc4 e2 Bb7 e1B Qe2 e4 Qf3 e3 Qe2 Nh6 Bg2 Ng4 Bb2 c1B Qd1 e2 Be5 Bb2 Rg1 h1B Bc6 Ne3+ Kb5 Nc5 Rg3 Ne4 Ng5 h3 Nc3 h2 Bd4 Rh3 Na4 Bec3 Rf3 e1B Rc1 Qh8 d8B Be6 d7 Bg2 B8b6 h1Q d8R Ba1 Rc8 Bcb2 Rc7 Bec3 Bbc5 Qe1 Rb7 Bh1 Qe2 Nd1 Bd7 Bg2 Nf7 Kg4 Ne5+ Kf5 Ng4 Bh1 Bg7 Be5 Bd4 Bb8 Nh2 Qd2 Rc5+ Be5 Rd5 Ng3 Rc3 Qe1 Qg4+ Ke4 Rb6 Bb8 Rf5 Bg2 Rf7 Bf3 Rc2 Kd3 Rc3+ Kd2 Bf8 Ba8 Rb7 Ne4 Rf3 a6+
4r1kq/Pb1B1rr1/1nKb1p1b/2P3Rp/rB1R4/P1Nb3N/N1B2P2/1Q3b2 w - - 0 1 legal: proof: e4 a5 d4 d5 h4 c5 b4 g5 bxa5 gxh4 Ba6 Nc6 Bd3 Nb4 Ba6 cxd4 Bf1 d3 Ba3 d4 Bc1 Nd5 exd5 Qb6 Be3 Qc7 Bc1 Qd8 Kd2 e5 g4 h5 c4 b5 c5 h3 g5 b4 a6 e4 d6 e3+ Ke1 h2 a3 d2+ Ke2 d3+ Kf3 e2 Ke4 e1B Kd5 f6 g6 b3 g7 Kf7 d7 b2 Be2 Bb7+ Kd4 Ne7 Nh3 Kg8 Rg1 h1R Rg5 Nc8 Bg4 Bd6 Nc3 b1B a7 Nb6 Qc2 d1R Bd2 Rh7 Ra2 Qb8 d8N Rg1 Nc6 Qf8 Nb4 Re8 Bd7 Rc1 Bf4 d2 Ra1 d1B Bd2 Be2 Nba2 Bf1 Qb2 Bg6 Qb1 Kf7 g8B+ Kg7 Bf4 Bd2 Bb3 Qh8 Bc2 Kg8 Be3 Re1 Bf4 Bc1 Bd2 R1e7 Be1 Rhg7 Bd2 Bgd3 Be1 Nc4 Bd2 Rf7 Be1 Bc8 Kd5 Rg4 Kc6 Be3 Nd1 Rf4 Bb4 Nb6 Ndc3 Rh4 Qb3 Rd4 Rd1 Bef4 Qb1 Rc4 Ba5 Ra4 Bb4 Be3 Rd5 Bh6 Rg5 Bh7 Rdd5 Bhd3 Rd4 Bb7+
nn2nq2/1p1PK3/1P2p2b/NR1r1qR1/q3q2k/2Q4n/2N1PPB1/B2B1R1r w - - 1 2 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 fxg4 b5 Ra6 Qb3 Ra8 h3 g5 Qc2 g3 Qc4 g4 Nf3 g2 Qb4 g3 Ng1 Bg4 hxg4 axb4 d4 Kf7 Kd2 Kg6 Ke3 Kg5 Ke4+ Kf6 a4 c5 d6 h5 Kd5 h4 a5 h3 b6 b3 g5+ Kf5 a6 Kg4 Ke6 c4 d7 c3 a7 b2 g6 c2 g7 h2 d5 Kh4 d6 Nf6 g8B Bh6 Nd2 b1N Ra5 Na3 Rb5 Ne8 Bb2 c1Q Nb3 Qc2 Na5 Qa4 Ba1 Qc8 Rg5 Nb5 Bh7 Qc5 d8Q Nbc7+ Kf7 e6 d7 Qd5 Bc2 Qf5+ Ke7 Rh7+ Bg7 Rh8 Qc8 Rh7 Bd1 Rh8 Nh3 g1N Ba1 g2 Nf4 Nh3 Nd5 g1Q Nb4 Qg2 Nc2 Qgf3 Rhg1 h1Q Bg2 Q3e4 Rf1 Qh2 Nc6 Qhe5 Na5 Qg7+ Kd8 Qg8 Ke7 Qgf8+ Kd8 Nf4 Nc4 Bg7 Bf3 Kh3 Bh1 Nca6 Qc5 Nac7 Qd4 Rh4 Bf3 Bh6 Qc3 Rg4 Bh1+ Kh4 Bf3 Rg1 Bg2 Qg8 Ke7 Rh1 Qd2 Nh3 Qe1 Nba6 Qc3 Rc8 a8R Nb8 Ra5 Na8 Rb5 Rc5 Na5 Rd5 Re1 Qh8 Rf1 Qhf8+
1B3B2/rpp2k2/rr1r3n/1P6/2Pb1PQR/nbPn1N1R/5R1b/1NNK2n1 w - - 0 2 legal: proof: e4 f5 exf5 g5 h4 d6 b4 gxh4 Bc4 a5 Bb3 Qd7 c3 Qb5 d3 Qc4 dxc4 a4 Ke2 axb3 Kd2 Bg7 Ke1 Bf8 f4 h5 a4 e5 g4 b2 g5 h3 f6 h4 a5 h2 b5 e4 a6 e3 g6 d5 g7 d4 a7 e2 Qb3 d3 Qa4 h3 Nf3 d2+ Kf2 d1R Na3 b1N Ne1 Nd7 Bb2 Rh6 Ra2 Kf7 Nd3 e1B+ Ke2 Bg3 Nc1 Rd6 Qd1 Ne5 Qg1 Nd3 Kd1 Rg6 Qg2 Nh6 g8R Bf5 Rh8 Bg7 Qe2 Rc8 Qg4 Ra8 Rh7 Rb6 Rh8 Rd8 a8N Rdd6 Rh7 Ra6 Nb6 Ra7 Nd7 Rda6 Re1 h1N Re3 Bh2 Rf3 Ng3 Ne5+ Ke6 f7 Ne2 f8B Ng1 Rg3 Bf6 Nf3 Bd4 Rh8 Kf7 Bc5 Rad6 Bb6 Ra6 Ba7 Rdb6 Bb8 Rgd6 Nc2 Ra7 Ba3 Rba6 Bb4 Na3 Bc5 Rdb6 Bf8 Bg6 Nd2 Rd6 Nb1 Be4 Ne1 Bf3+ Kd2 Bd1 Re3 Bb3 Nf3 Bg3 Rb2 h2 Rc2 h1R Kd1 Ng8 Rh3 Nh6 Re5 Rh2 Reh5 Rg2 R5h4 Bh2 Qh5+ Rgg6 Qg4 Ba2 Rd2 Rdb6 Rc2 Rgd6 Rf2 Bb3+
Q1B2qBK/4b1Rn/P3N1p1/r3Pr1R/N1pb4/4Bp2/1P1n1P2/2k1nRqb w - - 0 1 legal: proof: d4 a5 g4 h5 c4 hxg4 Be3 e5 dxe5 b5 Ba7 a4 Qxa4 bxc4 Qb3 Qf6 Qd1 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 h4 c5 a4 d5 e4 g3 h5 d4 h6 c3 h7 g6 a5 d3 Bb6 g2 Rh5 c2 Ra2 c1B+ Qd2 c4 Bd4 Na6 Ra4 Nb4 Nc3 Nc2 Nh3 g1Q Be3 Nf6 Ra1 Bb7 Na4 Be7 a6 Ne1 Qe2 d2 Qf3 d1N Bg2 Rb8 Kg5 f4 Kh6 Rf8 Kg7 Nc3 h8R Nb1 Rg8 Nh7 Kh8 Rf5 Bh1 Qf8 Ng5+ Kd7 e6+ Kd6 Bg2 Ke5 Bh3 Nd2 Qh1 Bd5 Qg2 Rb5 Qf3 Ba3 e7 Ra5 e8B Be7 Bf7 Bc6 Ne6 Ba8 Ba7 Bd5 Qd3 Bc6 Qd8 Bb7 Qa8 Bd5 Nec5 Kd4 e5 Bh1 Ne6+ Kd3 Be3 Kc2 Rb1 f3 Ra1 Qb8 Bg4 Qd6 Rg7 Qb8+ Bg8 Qf8 Bb6 Ne4 Bd4 Be3 Rb1 Nd2 Ba7 Nd3 Rf1 Ne1 Bc5 Bd4 Bh3 Bc3 Be3 Bd4 Ng5 Rf7 Bc8 Kc1 Ne6 Rf5
n5B1/Nb3BP1/3n1Ppp/N4r1P/1k6/1brR1NqP/bK1p1R2/1nB2Q1q w - - 0 1 illegal: Other
2Nnn2r/1b1Q1bp1/N2N4/5pqr/2nq1P2/3qBPRR/Ppk2BP1/1R4K1 w - - 0 1 illegal: No proof kernel
4R1q1/q1r3p1/pb2KbN1/P3np1B/q3r3/1k1P4/n1NPb1P1/1BRQNR2 w - - 0 1 legal: proof: f4 d5 b4 c5 bxc5 d4 Bb2 d3 Bf6 h6 Bg5 hxg5 exd3 gxf4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 Ka4 h4 b5 a3 f3 h5 f2 c6 a6 h6 b4 c4+ b3 h7 Nh6 c7 Nc6+ Ke4 e5 c5 Bg4 c8N f5+ Ke3 e4 Kf4 e3 Rh2 e2 Nf3 e1B Ne7 Rc8 Rh1 Rc7 Ng6 Nb4 Ke5 Na2 c6 Bc5 Ke6 Bb6 Be2 Nf7 Rf1 Rg8 h8R Ne5 Rfh1 Qb8 Rf1 Rd8 Re8 Rd4 Re7 Qa7 Re8 Rb7 c7 Re4 c8B Rc7 Bb7 Bh5 Bd5 Bg4 Rg1 f1Q Rh1 Bef2 Ne1 Bh4 Bf3 Qf2 Rf1 Bf6 Be2 Qf4 Bc4 Bh3 Bh5 Bg4 Bd5 Be2 Bc4 Ka5 a4 Kb4 a5 b2 Na3 b1Q Nac2+ Ka4 Bd5 Qb4 Rc1 Qf8 Na3+ Kb4 Bb3 Qh4 Bc2 Qg4 Bb1 Qg8+ Kd6 Qh4 Nac2+ Kb3 Ne7 Qc4 Ng6 Qa4 Ke6 Qh2 Bg4 Qh7 Bh5 Qg8+
1Kn2q2/1B1R1pN1/2P5/2p1r2Q/2k2PBN/1qbR1Rp1/B1r1bnPP/1qr5 w - - 0 1 illegal: No proof kernel
2NbR1RB/2KPp2k/qpn2Qp1/1b2R3/n6N/2n2P2/B4P1P/2rB1rqb w - - 0 1 illegal: No possible last move
1N3kn1/KqPq1P1R/p3BP2/1b1N4/2BNpb2/P5Qr/pRbnr3/1q5R w - - 0 1 illegal: No extended proof kernel
1q1nRq2/2p1n3/P3PBNP/1k1KN2P/1p5r/B2p2n1/1N1rQ1Bq/1R1b2b1 w - - 0 1 illegal: No proof kernel
6b1/pP2qBRN/1Bpb2Kn/1rPp1qP1/4B3/4r2k/1qP1R2N/n1b1N2Q w - - 0 1 legal: proof: f4 e5 a4 exf4 d4 g5 h4 b5 hxg5 bxa4 Qd3 Qe7 Qd1 Qc5 dxc5 Bd6 Ra3 Be7 Ra1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 h5 b4 d5 e4 a3 g4 h4 b5 a2 b6 h3 g6 f3 g7 h2 e5 f2 g5 f4 Ba3 Kf5 e6 f3 e7 Kg4 e8B Nc6 Bg6 Na5 Nd2 c6 Kd4 Rh3 Ke5 Be6 Bf7 Nb3 Bb4 Nh6 Kf6 Bd6 g8N Rb8 Bd3 f1Q Kg6 Qe2 Nf1 f2 Ba5 Re3 Nf3 Kh3 Be4 Qe1 Rc1 a1B Nf6 Bb2 Nh7 Na1 Rb1 Qb4 Ne1 Bc1 Rg1 h1Q Nh2 f1Q Rg2 Qf4 Re2 Qe5 Rb3 Qf3 Rb2 Re8 Rb1 Qbb2 b7 Rb3 Bc7 Rb5 Bb6 Qbc3 Rb3 Qcd4 Rbe3 Qb2 Ng2 Re7 Qh1 Re8 Ne1 Re7 Be8 Bg8 Bf7 Re8 Bd3 Qe7 Re4 Qc7 Re7 Qd8 Rd7 Re3 Be4 Qc7 Be6+ Qg4 Rg7 Qe7 Bf7 Qf5+
2B2RrR/2bnNR1p/pr4p1/3PN2q/PK1N1nr1/1P3r1k/2B1P3/2Q2b1b w - - 0 1 illegal: No proof kernel
2bk4/Prrr1P2/4rP2/1QpRRNp1/qb1N2Rn/4Bp1K/1B1N2P1/3b3n w - - 0 1 illegal: No proof kernel
n7/1P2pk2/Pn2r3/qRn1bP2/N5RR/1Q1r2Kp/1Pp2n2/1qBB1BNb w - - 0 1 illegal: No possible last move
2r2N1N/3BKBB1/k2pP1qp/P2r1R2/1Rn3p1/2Pn1nQ1/b1NP2q1/3qr3 w - - 0 1 illegal: No proof kernel
1N2b3/K2r4/1QpbPN2/B1N2Pk1/n3Bq1p/1nPR2nn/4PRnp/1b3B2 w - - 0 1 illegal: No proof kernel
5BrN/3q1P1p/1k1b2qP/2pK2n1/brP1bR2/1bpNB1Q1/5P1b/R3R1N1 w - - 1 2 illegal: No extended proof kernel
q2nBqk1/2rp1rq1/3KN1PB/2QP2BP/2p3Rb/1R2q3/3qPR1p/3b2N1 w - - 0 1 illegal: No proof kernel
1Nq1BbR1/2n1pb2/6pP/3rn1N1/Ppn2Q2/nB1Pn1P1/K2B2qR/6kN w - - 0 1 illegal: No proof kernel
4q1N1/pQ1P1BR1/PrbP2p1/5nnq/n1n1kpP1/1b5B/1N1R4/3BbNK1 w - - 1 2 legal: proof: f4 d5 g4 h5 e4 b5 b3 c5 Bb2 h4 Be5 Na6 Bb8 e5 exd5 e4 b4 cxb4 Be5 Rb8 Bd4 Rb7 Bf2 Re7 Bg3 Re5 fxe5 hxg3 a4 Ke7 c4 f5 d4 g2 Kf2 g6 h4 f4 h5 b3 h6 b2 h7 b4 e6 Kf6 d6 b3 e7 Qe8 a5 Qd7 e8B Qb7 d5 Ke5 c5 Qf7 c6 Qb7 d7 Bb4 d6 Qb5 c7 Bb7 c8B Nh6 Nh3 g1N Nd2 b1B Ra2 b2 Qb3 Nc5 a6 Bc6 Bf7 Bc2 Bb7 Rb8 h8N b1N Bg2 Ba5 Nf1 Na4 Rh2 Bd1 Rd2 Na3 Ba8 Qd5 Qb7 Bb3 Bf3 Bb4 Bd1 Nf3 Rh1 Ng5 Kg1 e3 Nf2 e2 Nd3+ Kd4 Nb2+ Ke4 Rh2 Nf5 Rh7 e1Q Rg7 Rc8 Bg8 Ba5 Nf7 Nc4 Nh6 Rb8 Bf7 Qe5 Ng8 Qh4 Qc8 Rb6 Bb7 Qe8 Qc7 Bd5 Bc6 Qh5 Qb7 Na3 Bb5 Bc6 Bbe2 Nc4 Bf3+ Ke5 Bg2 Bb4 Bh3 Ke4 Rg2 Be1 Rh2 Bd5 Rd2 Bc6
KB2NRR1/p4r2/7k/1q1q1p1n/qPB2RpQ/2N2P1b/2P1b1P1/q4Nnb w - - 0 2 legal: proof: a4 b5 h4 bxa4 h5 g5 h6 Bg7 hxg7 c5 d4 cxd4 e4 f5 e5 Nh6 b4 Rf8 f3 Rf6 exf6 Kf7 Kd2 Kg6 Kd3 e5 Kc4 d5+ Kc5 e4 g8N e3 f7 a3 f8R d3 Ne2 d4 Kb5 d2 Qe1 d1Q Rh5 d3 Rh1 d2 Rf7 a2 Bb2 Qa5+ Kc4 Bd7 Qh4 Ng4 Bd4 h5 Ne7+ Kh6 Nc8 Nf2 Nd6 Qa4 Kc5 Nh3 Ng3 e2 Rh2 e1Q Kd5 Ng1 Bb6 Qee2 Bd4 Be8 Qh3 h4 Bf2 Nd7 Rf8 Bh5 Ne8 Bg4 Nc3 Nf6+ Kc5 Qea6 Bc4 Nh5 Nf1 Q6b5+ Kd6 Rd8+ Kc7 Rd7+ Kc8 Re7 Bg3 Rf7 Rb1 a1Q Bb8 Qb3 Qg3 h3 Qh4 Q3a4 Rh1 h2 Rc1 Qe2 Re1 Qd3 Re4 d1B Rf4 Bh3 Be5 Qc6+ Kb8 Qcb5+ Ka8 g4 Bb8 Qdd7 Ne3 Ne2 Re1 h1B Nf1 Ng1 Ree4 Be2 Re7 Rf6 Rg7 Rf7 Rgg8 Qdd5+
2Nb1B1r/QrP1bbpq/8/R5pq/p1nrN3/1P2RPK1/P3b1R1/N1kB4 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 b4 g5 h6 c3 hxg5 Qc2 Na6 Qa4 c4 Qd1 Nc5 dxc5 bxc3 h4 Kf7 b3 Kf6 c6 Ke5 f3 a5 Kf2 d5 f6 a4 f7 d4 h5 c2 h6 c3 h7 d3 Bd2 Kd4 Rh6 c1R Kg3 e5 Be1 Ke3 Kg2 d2 Bc4 e4 Rf6 c2 Nh3 Qd3 Re6 Be7 f8N Nh6 Na3 Rb8 Ng6 Nf5 Nf2 Nd6 Kg3 Rb7 c7 Bd8 Bb5 Nc4 Ne7 Rb1 Ra6 c1B Ra5 Be6 Nc8 Bf7 Qc2 d1B Bb4 Bb2 Bf8 Be2 Qc3 Rf1 Qd4+ Kd2 Qa7 e3 Re1 Bbf6 Nc2 Bfe7 Na1 Rh1 Rg1 Rh4 Rg2 Rd4 Ne4+ Kc1 Ba6 Qd1 Bb5 Qh1 Ba6 Qh5 Bb5 Nb2 Bd3 Nc4 Bc2 Bf1 Bd1 e2 Rh2 e1Q+ Rf2 Rg8 h8R Be2 Rh6 Rh8 Re6 Qeh1 Rg2 Kb1 Nd2+ Kb2 Re3 Kc1 Ne4 Qh7 Rg1 Q1h6 Rg2 Qh5
1b1N3r/n3K1k1/5p2/bN5p/1B1B2nr/1R1rNPn1/BpP1rP1P/1r2Q1R1 w - - 1 2 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 Bd3 d5 Qf3 Bg4 Qd1 Bf3 Bf1 d3 gxf3 d4 Qd2 Na6 Qd1 Qd5 exd5 Nb8 Kd2 g5 a4 e5 a5 b5 d6 h5 a6 b3 a7 g4 Nc3 f6 d7+ Kf7 d8B b4 Nge2 g3 Rb1 e4 Ng1 e3+ Ke1 b2 Be7 g2 Ne4 d2+ Ke2 b3 Kd3 e2 Kc4 e1B Kd5 d3 Kd6 Nh6 Ng5+ Kg7 Ne2 g1N Ng3 Ng4 Qe2 d1R Be3 d2 Bd4 Nc6 Nf7 Re8 a8N Na7 Qe4 Ne2 Nc7 Nc3 Bd3 Ne2 Nf1 Ng3 Be2 Rc1 Bb5 d1R Nd8 Rd3 Rg1 Ba5 Qe1 Rcd1 Ne3 R1d2 Kd7 Re2 Bb4 Re4 Bc4 Bd6 Nb5 Bb8 Be6 Rf4 Ke7 Re4 Ra1 b1R Ra3 b2 Rc3 Ne5 Ba2 Rh4 Rb3 Ng4
b2r1r2/r5qn/2R5/PpPN1p2/n2pknN1/1p1RP3/2bPB3/1Q1BBKN1 w - - 0 1 illegal: No proof kernel
2q2nnR/Q2b1N2/2k2NRp/1N1p2pP/1bn1r3/2PPbPrB/1p3B2/3K3R w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 cxb4 a4 b5 axb5 Bb7 Be2 Bf3 Bf1 Bxg2 h4 g5 h5 a5 b6 e5 f6 d5 b7 Kd7 f7 a4 Nh3 e4 Ra2 h6 Qe2 e3 Ng1 a3 Qd1 b3 Nf3 e2 Nc3 b2 Nb5 Bb4 f8N+ Kc6 Nd7 Bh3 Nf6 Nd7 b8R Qc8 c3 Nf8 d3 Ra4 Ra8 Bd7 Be3 Rh7 Qa1 Rf7 Kd2 e1B+ Kd1 Bd2 Bh3 Re7 Bd4 Be3 Bb6 Re4 Ne5+ Kb7 Nf7 Kc6 f3 Rg4 Qb1 Rg3 Ra1 a2 Qc2 Ba5 Qf2 Re4 Rb8 Bb4 Qg1 Bd2 Bf2 Bc1 Be1 Bd2 Qa7 Bc1 Bf2 Be3 Rc1 a1N Rb1 Nc2 Ra1 Bb6 Ra6 Na3 Rb7 Ne6 Nh8 Be8 Ng4 Nc4 Rh7 Nf8 Nf7 Bd7 Rh8 Re8 Be1 Kc5 Bf2+ Re3 Qb7 Ba7 Rg6 Bb6 Qb8 Ba7 Nf6 Kc6 Re1 Bac5 Qa7 Re4 Rh1 Be3
3R1B1r/nBq3p1/1K2k1pN/nNR2q2/Qbr2q1p/1P3P1b/3P2Pp/4BR2 w - - 0 1 illegal: Other
6B1/3B1Pp1/rQ1N1pbR/2P1k3/p3Nn2/2bP2n1/1BqP2pr/1bRqK1R1 w - - 0 1 illegal: No proof kernel
R1Q1b3/1NP3k1/P2NKr1r/1P1B4/2Rp1p2/1n1N1bPp/1p3B2/b1qRn1q1 w - - 0 1 illegal: No possible last move, all moves rejected
1n1Q2bB/2PPq1rR/BP1p2P1/1N3N1R/k4bpq/5n1p/3p4/K1NR1rb1 w - - 0 1 illegal: No proof kernel
5NrN/1N1n2RQ/B1bR2pP/p1q2Pb1/b1p1P1n1/2P3q1/B1p2Bk1/4Kq2 w - - 0 1 illegal: No proof kernel
4b2b/P1n3p1/2B1Kpr1/N1p1NQBk/1R3P1n/R1q1n1P1/2BnPp1n/R7 w - - 1 2 illegal: Other
3k1n1b/1KN2P2/2rb1p1n/R1Bp1NRR/1p2QPn1/1n1N3P/2p3P1/2qB1b2 w - - 0 1 illegal: No proof kernel
8/pp1KN3/n2q1p1r/1P2PBpn/R3nPBQ/1q2R3/2R1nrP1/4NkBb w - - 1 3 legal: proof: d4 e5 b4 exd4 a3 c5 Kd2 cxb4 Ke1 b3 h4 g5 h5 Bb4+ axb4 d6 Ra6 Bf5 Ra1 Bg6 hxg6 Qa5 Qd2 Qb6 Qd1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 d3 f3 d2 g7 h4 c5 b2 b5 h3 c6 h2 c7 Rh6 c8R Na6 Qa4 d1Q Nc3 b1N Be3 Qb3 Nd5 Nf6+ Kd4 Kf5 g8B Nd2 Rc2 Nh5 Bh7+ Rg6 Qb4 Ne4 Ra4 f6 f4 Kg4 Ne7 Kg3 Nf3 d5 Ne1 Qd6 Bg1 Rh6 Bf5 Rc8 e3 Rd8 Be2 Re8 Beg4 Rc8 Rc1 Rc2 Qc5 Rf2 Rc2 Qd8 Qc8 Qd6 Qh8 Qb2+ Kd3 d4 Kc4 d3 Qh7 d2 Qh8 Qdb4+ Kd5 d1N Ke6 Ndc3 Kd7 Q2b3 Qh7 Ne2 Qh8 N4c3 e4 Q4a3 e5 Ne4 Qh7 Rf3 Bb6 Qc5 Rf1 h1B Rf2 Qca3 Rc3 Kh2 Re3 Kg1 Bd4 N2c3 Rc2 Kf1 Ree2 Qab4 Bg1 Rf2 Re3 Ne2 Qg6 Ng7 Qh5 Qc5 Qh3 Nh5 Qh4 Qd6+
3nrRB1/k3B1q1/1p3qP1/K1pRR3/1P1N1PNn/p2p3N/r1P3n1/3n1Q1b w - - 1 2 legal: proof: g4 f5 h4 g5 a4 e5 d4 Nc6 dxe5 Nb4 a5 Na2 a6 Be7 Kd2 fxg4 Ke1 g3 Nd2 g4 Nb1 Bg5 hxg5 Qf6 Rh5 Qxa6 Rh6 Qf6 Rh1 Qd8 Kd2 c5 b4 a5 e4 h5 f4 d5 e6 d4 g6 g2 e7 Kd7 e8R Kc6 e5 Kb6 e6 d3 e7 g3 Rh3 a4 Qg4 h4 Qf3 Bd7 Qg4 Nh6 Bb2 Bc6 Be5 Ka7 Bf6 Nf7 Na3 Nc3 Re1 Nd1 Qe2 Bd5 Rh1 h3 Rf8 h2 Nh3 g1N e8N g2 Be7 Nf3+ Kc1 g1N Bg2 Bc6 Qf1 Nh4 Re5 Ngf3 Nf6 Ne1 Bd5 Neg2 Ng4 Qd7 Kd2 Nd8 Bg8 Qd6 Rg1 h1Q Rd5 Qf6 Nb5+ Kb6 Nd4 Ka7 Kc1 Qg7 Kb1 Qh2 Ka2 Qg3 Nf6 Qg5 Ng4 Q5f6 Ka3 Ne1 Re5 Bh1 Rg3 Neg2 Rge3 Nf7 Rd5 Re8 Re6 Nd8 Ka2 a3 Kb3 Rh5 Ka4 Re5 Nh2 Re1 Kb5 Nc3+ Ka5 Ra1 Re4 Nd1 Ree5 Ra2 Ng4 b6+
N1q1n3/5p2/3PnB1q/1QPPBR2/N1bR2B1/Rp1p2rp/1n3P2/1rk2n1K w - - 0 1 illegal: No proof kernel
5Nb1/pb1p2Rn/p2kB1P1/pPNn1nN1/7Q/3P1r1R/Pn3B1b/B1r4K w - - 0 2 illegal: Other
R1q1N3/1K3Q1q/R1P5/1k1b1qp1/2p1r1PB/Bpn3P1/1pPn2B1/n2RN1q1 w - - 0 1 legal: proof: e4 c5 b4 b5 d4 a5 g3 axb4 Be2 c4 Bf1 e6 e5 Bc5 g4 Ra3 dxc5 Rg3 hxg3 f6 Rh4 fxe5 Rh1 e4 Ke2 d5 Ke3 Kd7 Kd4 Kc6 a4 h5 f4 e3 a5 e2 a6 e1Q f5 b3 a7 b2 a8R h4 f6 b4 f7 h3 f8B h2 R8a4 Na6 Qf3 Kb5 c6 Qf2+ Qe3 Qf5 Qf4 e5+ Ke3 d4+ Kf3 e4+ Kf2 e3+ Kf3 d3 Ne2 d2 Be7 d1N Bh4 Nf6 Ng1 e2 Bg2 e1Q Nd2 Be6 Ne4 Nc5 Ra8 Nc3 R1a6 Qed1+ Ke3 Bd5 Qf1 Nb3 Nf3 Na1 Ne1 Qdc8 Qf4 Rg8 Qc7 Re8 Qf7 Qe2+ Kd4 Qef1 Rg1 Qh7 Rh1 Qff5 Rg1 Nd7 Nf6 Nc5 Rf1 N5e4 Rg1 Re5 Ne8 Re7 Bh6 g5 Bf8 b3 Rf1 Rd7 Ba3 h1Q Rg1 Nd2 Rf1 Qd3+ Ke5 Rc7 Kd6 Re7 Rg1 Re4 Rf1 Qe6+ Kc7 Qg1 Kb7 Qef5 Rf3 Qdd4 Rd3 Qdh8 Rd4 Nf3 Rd1 Nd2 Ng7 Qd8 Ne8 Qdc8+
n3b1Nk/N4Rrp/1q2NB2/1r2RPp1/rP1pbp2/BQ1P2P1/K2n1p2/6B1 w - - 0 1 illegal: No proof kernel
Bnr4R/1K2qpNP/5PQN/p2R2P1/P7/p3b1pr/B2q1p1n/RNb3k1 w - - 0 1 illegal: No proof kernel
1B6/1RPP2N1/prp5/1pQ1R1qr/R1K3kB/1Pnpp1Nn/1bP3N1/rn6 w - - 0 2 illegal: No possible last move
1r2N1b1/6pp/b4n1B/2R1P1PP/p1R2BPN/NqpQ2qB/4q2p/1n2k2K w - - 1 2 illegal: No proof kernel
7B/N3N3/2np1bB1/2q2PpP/1pp2p1Q/2R1RrP1/qk3PRn/Nnb2K2 w - - 1 2 illegal: No proof kernel
br3k2/1p5P/Q2pp1Rq/2pR2BR/b1PP1bN1/2PB1rp1/q1N1K3/1Bn5 w - - 0 2 illegal: Other
Rr2R3/4pn2/nnPNP1n1/1Pbbp1B1/1kB1B2p/1p1P4/5R1p/r1NK1Q2 w - - 0 1 illegal: No proof kernel
3qBRR1/1nBb1qn1/rb1Pr3/N3k3/B2R1p2/5PPp/1rq1n2P/1qN3QK w - - 0 1 illegal: No proof kernel
4qQ2/kbB4B/1b1Bp2r/4P2b/KRp3Pn/2Nn2nr/R1Pr1qP1/2N1N1r1 w - - 0 1 illegal: No proof kernel
b4k2/4pqRB/2Q1PR1p/B2r2Nq/1R1PN3/4n1rP/2Pnb2K/qq1N1rb1 w - - 0 1 illegal: No proof kernel
2N3Nr/PN2RRK1/1qR1n3/br2pp2/B1n2B2/1P2Prb1/k1b2P2/nqQ1n3 w - - 0 1 illegal: No proof kernel
3KNb2/nb1p1P2/1p5n/1P1b3R/RPqR2Br/BBqPkn2/q4N1Q/5r1n w - - 0 1 illegal: No proof kernel
b1N1b3/Bpn4Q/p2r3r/r1nBRq2/PK3R2/P1n1P2N/1P1Rr1B1/b1kq4 w - - 0 1 illegal: Other
3B4/1qb3Pp/3KBp2/bq1bBPQP/1r3Rn1/1NRnP2k/1br1b1b1/2N2R2 w - - 0 1 illegal: No proof kernel
1R6/2Qb1BrN/N1BBn1pb/Nbb2b2/2Rr2PP/1K1pn3/n2Pnk1P/6q1 w - - 0 1 illegal: Other
Kr6/pBN3pN/2RrN2q/Bnp1R1P1/2P5/PRrkP1nq/2b1b1Q1/1b1n4 w - - 0 3 illegal: No possible last move, all moves rejected
qRb4b/rP2rp2/pRq3pK/Pb3P2/Rn4P1/2Bn1NB1/2n4r/2N1Q1Bk w - - 2 3 legal: proof: d4 h5 c4 e5 g3 exd4 Be3 b5 cxb5 h4 Bc1 h3 Bg2 hxg2 Kd2 Ke7 b4 Ke6 e4 Ke5 a4 c5 h4 d5 f3 d3 Ke3 d2 h5 a6 a5 g6 g4 c4 h6 c3 b6 c2 b5 Nf6 b7 Nc6 b6 Nd7 h7 Ra7 Ne2 g1R Ra4 Nc5 Qe1 d1B Nd2 Nd3 b8B+ Bd6 b7 Ncb4 Ba3 c1Q Rh2 Qc2 Nc1 Be2 Rg2 Qc6 f4+ Ke6 f5+ Ke5 Rf2 Rg2 Rf3 Rh2 Rh3 Re8 h8B+ Qf6 Rf3 Re7 Rg3 Bf1 Kf3 Kd4 e5 Bc7 e6 Be5 Bc7 Qg7 Bb8 Qf8 Rh3 Bf6 Kg3 Be2 Nf3+ Ke4 Bd6 Be5+ Kh4 d4 Kg5 Qfe8 Kh6 Ke3 Qc3 Kf2 Qe1+ Kg2 Bc7 Bf6 Bg3 Bf1 Bb2 Kh1 Bc3 Be5 Bf6 Qd8 Bg5 Bh8 Bgd2 Nf2 Bg5 d3 Be3 d2 Bc5 Nfd3 Bg1 Rc7 e7 d1N e8R Ne3 Re6 Re7 Rh5 Nec2 Rh4 Qcd7 Rb6 Qc6 Bf6 Bd7 Qe6 Nde1 Kh7 Bb5 Bc3 Ned3 Qe1 Qa8 Rh5 Bd4 Rh6 Be3 Kg7 Bf2 Rh8 Bc5 Rb8 Bc8 Bh4 Bd4+ Kh6 Rf2 Bg3 Bh8 Bb2 Rd2 Bc3 Rh2+
3BR3/1Pr5/B1q1Nqpn/K1P2p2/2NRbpP1/b3bn1k/2nNqP2/Q2R1r2 w - - 0 1 illegal: No proof kernel
4qB2/QnN2pBp/1Kp1r3/PbPBN1k1/P1Rrr1q1/2b3qP/1b6/nN1R4 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 bxa5 g5 Bb2 gxf4 Ba3 Bg4 Bc1 Bc8 Ke2 b5 d4 e5 g4 Ke7 c4 Kf6 a4 b4 c5 e3 Kd3 c6 Kc4 f3 h3 f2 d5 e2 d6 e1B d7 b3 Bh6 b2 Rh2 e4 Bd3 f1R Bc2 e3 Qd5 e2 Rg2 Rf4+ Be4 Qe8 d8B+ Ne7 Qd7 Ba6+ Kd4 Bb5 Qa7 Bg7 Nf3 Na6 Ne5 Nb4 Rg3 Bd2 Rc3 e1Q Rc4 Qg3 Bc7 Be1 Bd6 Nc8 Bf8 Nd6 g5+ Ke6 g6 Kf6 Nc3 Rd8 Rd1 Qg4 Nb1 Bc3+ Ke3 Rg8 Bd5 Nc2+ Kd3 Na1 Ke3 Bh8 Bhg7+ Kg5 Kd3 Rf1 Ke3 Nb7 Kd3 Rg1 Ke3 Qg3+ Ke4 Kh5 Kf5 Re1 Kf6 Re4 Kf5 Qd7+ Kf6 Qdg4 Ke7 Rd6 Ke8 Re6+ Kd7 Kh4 Kc7 Kg5 Kb6 Rd4 Bd6 Rge8 Bdf8 R8e7 Bh6+ Kh4 g7 Re8 g8N Bg7 Na3 b1Q Nf6 Qbe4 Nb1 Bh8 Bhg7 Kg5 Ng6 R8e7 Ne8 Qee1 Nc7 Ree4 Na6 R7e6 Ne5 Bb2 Nd3 Rg6 Nd2 Rf4 Nb1 Qe8 Be5 Re6 Nc7 Rfe4 Nf4 Rd3 Ng6 Bf6 Bd4 Bd8 Bh8 Bdf6 Bhg7 Bfc3 Ne5 Rdd4
3N2Nn/1bRpBppk/1K2n2P/3q2rN/b1qr1P2/3P2Pq/6Q1/n2bBR1B w - - 2 3 illegal: No proof kernel
n7/pbprPR2/1PP1pb1K/1n1Nnr2/1R2P1kN/3B2Bb/2R1qQ2/4nBn1 w - - 0 1 illegal: No proof kernel
1N2b2r/k1p5/B1rR1P2/B1Pb1pPB/1brQ1P2/R2n4/2r1R2p/qr2nN1K w - - 0 1 illegal: No proof kernel
r2b1q2/3P1pn1/1Q1pRbB1/3Nr1R1/1Bp1bP2/1NRPBb2/n1P3r1/1b3K1k w - - 2 3 legal: proof: e4 h5 g4 hxg4 b4 a5 e5 axb4 Ba3 d6 Bc1 Kd7 e6+ Kc6 Nf3 Rh7 Ng1 Qd7 exd7 Rh8 a4 Kd5 h4 Ke4 f4 b5 a5 c5 h5 e5 a6 g5 a7 g3 h6 g2 h7 g4 Ra4 g3 Qh5 Bg7 Rh2 Nf6 Qh4 Na6 Qh3 Nh5 Bc4 b3 Ra1 b2 Ra2 b4 Bb3 Bf6 Ra3 Rg8 h8B Bb7 Ra4 Ng7 Ne2 Kf3 d3 g1Q+ Kd2 e4 Qh4 g2 Be6 b3 Bd5 Nb4 Nec3 Na2 Ra3 Rge8 Ra6 Re5 Ra5 Qe3+ Kd1 g1R+ Qe1 Bc6 Rh6 Kg2 Nd2 b1B Ra3 b2 Nb3 Qh3 Ke2 Kh1 Qf2 Rg2 Kf1 e3 Be4 Qh2 Bh7 Be4 Nd5 Qh5 Rg6 Qh6 Rg5 Bd8 Bg6 e2+ Ke1 Bf6 Qd4 Bf3 Be3 Be4 Qb4 Bd8 Qb6 Bf6 Kd2 e1B+ Kd1 Bf2 Ke2 Bh4+ Kf1 Bd8 Rg4 Bhf6 Rg3 Nf5 Rg5 Qf8 Bg7 Nc1 Bh8 Ba2 Bg7 b1B Bh8 Rc8 a8R Ng7 R8a4 Ra8 Rd4 Bf3 Re4 Rf5 Re6 Re5 Na1 Bc4 Rc3 Na2 Nb3 Ba6 Nb4 c4 Nd5 Be4 Qb5 Bf3 Qc6 Bb7 Nb4 Rd5 Qb6 Nf5 Bg7 Bfe7 Bgd4 Re5 Bc5 Bbe4 Nd5 Ng7 Bb4 Bf6
8/2P2kP1/1pQr1N1p/R3BN1b/2nb1Kn1/bP1p1bqR/3n1B1P/rb4NB w - - 0 1 illegal: No proof kernel
2b4B/3p2nr/1N4qb/RpK3rP/1n1P1Rp1/nP3P2/2Nr1b1N/2n1QBkB w - - 0 1 illegal: No proof kernel
5r2/1nkbP2p/5B2/1r2n2Q/2N2pq1/1BR1pNb1/K1PRP2P/rnb1Nr1R w - - 0 1 illegal: No possible last move, all moves rejected
1kNN1r1n/1q1p2p1/1brb1P1B/R1bK4/rp1Pb1RB/5nP1/1P1n2Q1/1N2B3 w - - 0 3 illegal: No proof kernel
5qkB/nn2P2N/2NRrrp1/1b2b1Bp/1nn3pP/N2qPnQ1/1K4P1/1B3R2 w - - 0 1 illegal: No possible last move
r1nR4/3R2nb/2Q1BK2/n2b3N/1Bpp3b/p1PPP2P/qb1q1kr1/B2R2N1 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 Ra2 hxg4 Ra3 Qf6 Ra1 Qd8 Kf2 Ke7 b4 Ke6 e3 Kf5 c3 Ke4 h3 g5 b6 d5 b5 f5 b7 a5 b6 c5 Ke2 g3 Na3 g2 Nf3 g1Q Qb3 g4 Nc4 g3 Ra3 g2 Rh2 a4 Nd4 f3+ Kd1 f4 Kc2 f2 Na5 f3 Ne2 Nc6 b8R Bf5 b7 Bh7 Qb1 Nge7 Bb2 Rg8 Ba1 Nc8 Nc4 Na5 Rh1 Qh2 Qb6 g1B Qc6 Rg2 Nf4 Be7 Be2 f1N Nh5 f2 Ne5 Ng3 Bg4 f1B Nf3 Bc4 Be6 Bf2 Rd1 Nf5 Ng1 Ng7 Rb3 Be1 Rb6 a3 Ra6 B7h4 Ra7 Nd6 Rc8 Qg8 Re8 Nc8 b8B Qf7 Bd6 Qg8 Qa4 d4 Rd8 Bd5 Rad7 Qf7 Qc6 Qg8 Ne2 Kf3+ d3 Kf2 Ng1 Bd2 Be7 Nc4 Kb3 Bc1 Bf8 Bb2 Bd6 Bf3 Be7 N4d6 Bf8 Nb7 Kc4 Qf7 Qe4 Na5+ Kd5 c4 Bb4 Qg6 Ng3 Qf7 Ke5 Qg6 Qb7 Bd5 Qc6 Qg4 Qb6 Qe2 Qc6 Qh1 Nh5 Qd2 Nf3 Qhe1 Ng1 Qc2 Ra7 Qed2 Rad7 Bg3+ Kf6 Qb3 Qb6 Qa2 Qc6 Bh4+
NbK1B1N1/3bQ1PR/3qqpPp/R4Pn1/2q1p1kn/3B4/rR2Pr2/q3B1n1 w - - 0 1 illegal: No possible last move, all moves rejected
1N1Rrrb1/p5b1/RQ5P/2N1qR1q/Pbp2PK1/1pP2Bnn/r2r4/k1B3B1 w - - 0 1 illegal: No proof kernel
nQ1q2kn/K1P1B3/1p2Nprp/2q2R2/3qP2P/q4P1N/4Nbr1/BBnb1R2 w - - 0 1 illegal: No proof kernel
2R1q3/1P2kn1p/2Rprq1Q/BP1Br3/3PN1RP/1r5b/Kp4B1/r1q1bNn1 w - - 0 1 illegal: No proof kernel
1Q6/qbKRpRpp/PN1q3n/4b2P/2nPr1B1/R4n2/n3kqP1/BB3Nr1 w - - 0 1 illegal: No possible last move, all moves rejected
1N1rq1N1/npb2B2/3P2Bp/Bn1RK2b/RP4k1/1n1P4/2pbn2P/1R2Qrq1 w - - 0 1 illegal: No proof kernel
rqbNB1R1/2nbBN1p/3b1np1/2Pp3P/B2P1n2/1P3n1R/k4K1r/2Qb1N2 w - - 0 1 illegal: No proof kernel
1n1rk1n1/1R2pb2/1B4p1/2p1rB1N/1n2PR1b/2P1rBP1/2N1r1QP/2nN1K1n w - - 0 1 illegal: No proof kernel
2Br1Nb1/1np2k2/1pPR4/3R2K1/PB1rBp1r/p1qP1PQ1/1bn4R/4n1bN w - - 0 1 illegal: No proof kernel
N5R1/1rn2br1/n1b2P2/Q1p1R2p/N2b1n2/prB2P2/P1P1Bkqp/K3NB2 w - - 0 1 illegal: No proof kernel
1BknRr1b/1R2q2p/1p6/7R/Q1N1pr2/1r1qP1Pp/1nb3PP/KbNB1B2 w - - 0 1 illegal: No proof kernel
1QnR4/P1RpB3/r1n1Pp2/3qbNkq/nB1P4/2N3pq/p3B1PR/1brK4 w - - 0 1 illegal: No proof kernel
nrQ4q/R2p1P2/p1pp1q2/1br3R1/PrP2b1N/5NPK/qk1B4/1N1B1nR1 w - - 0 1 illegal: No proof kernel
B2N4/q1Rpr1b1/1Pb2pn1/B2NQnq1/3p2n1/p4bRK/P1P2P1r/R2B1k2 w - - 0 1 illegal: No proof kernel
7N/1rPpqpbp/1BRr2NP/Kn6/3NQ3/5Brp/b1nP1RBP/k5qb w - - 0 2 illegal: No proof kernel
N2r2n1/1pq3k1/3r4/1bpQ2p1/bB1nRR1P/1B4Np/PP1N2rP/K1R1b2q w - - 0 1 illegal: No proof kernel
N4R2/pq1b1n1r/1q2p1P1/RKp2p2/1BB1Qn1k/P1Pb3N/1bPNr3/1rB5 w - - 0 1 illegal: No possible last move
b1B1nr1n/Rp1B1nR1/qNqkp1rP/8/5q2/4P1b1/pP2PB1p/QK1N3N w - - 0 1 illegal: Other
3N1k2/nBBK3p/3R1N2/qr1R1n1P/rRp1pn2/2P1P2P/b4bBp/n5Qn w - - 1 3 illegal: No proof kernel
q1Bb4/p1Np2R1/P3Pk1p/3rN2P/n3b3/n1b1QrpN/2R1PB1n/Kn4R1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g3 f5 g4 fxg4 Kd2 Kf7 Kc2 c5 h4 g5 b4 c3 a4 c4 f4 g3 e6+ Kf6 f5 g4 a5 g2 b5 g3 b6 Na6 b7 Ne7 b8N Nc5 a6 Na4 Bh6 Nd5 Rh2 Bb7 Qe1 Bb4 Qd2 Ndb6 Nh3 g1N Be3 Nf3 Na3 Be4+ Qd3 Ba5 Kb1 c2+ Ka2 c1B Bf2 c3 Bg2 c2 Qe3 Qf8 Nc6 Bcd2 Ne5 Bdc3 Rg1 Nc4 Nb5 Bd8 Nc7 Na3 h5 h6 Rhh1 Rg8 Rc1 Rc8 Rhg1 Rg5 Bh1 Nh2 Bf3 Ba8 Bb7 Rb8 Bc8 Rb3 Rg2 Be4 Rgg1 Bb4 Ka1 Qe8 Rb1 c1N Rb2 Na2 Rc2 N2c3 Rb1 Kg7 Rg1 Ncb1 f6+ Kg8 f7+ Kg7 f8R Bc3+ Ka2 Rf5 Rg8+ Kf6 Rg7 Rb5 Qd2 Rf3 Qc1 Rd5 Qe3 Be7 Bb7 Qa8 Bc8 Bcb4 Ka1 Bd8 Rd1 Ba5 Rg1 Bc3+
Q1n1R2N/5p2/1PBNp1p1/2npB3/q3r1b1/B3PRPn/1b1kP1r1/1R3bnK w - - 0 1 illegal: No proof kernel
8/p2RbN1p/PbP1BppR/3bq3/r1QN1r1n/N2PR1BK/6nP/2nk2n1 w - - 0 1 illegal: No proof kernel
N6B/5p1N/1NK1R2q/k1n1P1qB/nRprP1pb/1r3b2/2PRbPp1/4Q1b1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 bxa4 g3 h5 g4 hxg4 Kd2 d5 Ke3 Kd7 Kd4 Kc6 h4 Kb5 e3+ Ka5 h5 g5 h6 c5+ Kc3 c4 Kd4 a3 h7 a2 Be2 g3 Nc3 g4 Qd3 g2 Rh3 Na6 Nf3 Nf6 Na4 Bd6 Qe4 Bb7 Bd3 Nc5 Ng5 Rb8 Rb1 a1Q Nb6 Na4 Na8 Nd7 Rh6 Ndc5 Re6 Re8 h8R a6 Nh7 Qg5 Nf6 Red8 Nh7 Bc6 Rhe8 Rb3 R8e7 Qa3 Rd7 Qb4 Bd2 Be7 Bc3 Qh6 Qf3 Bh4 Bg6 Qg5 Bh5 Qh6 Bd2 Qg5 Bc1 Qb6 Qd1 Bb7 Ree7 Qbh6 Re6 Bg3 Qf1 Bh2 Rdd6 Bg1 Qe1+ Kb5 Bd2 a5 Bc1 Nb6 Bd2 a4 Bc3 a3 Rd7 a2 Rdd6 a1B Rd7 Nd3 Rdd6 Ka6 Rd7 Nc1 Kc5 d4 Rdd6 d3 Rd5 Bc8 Kc6 d2 Rd7 d1B Rd2 Bd7+ Kc7 Ra3 b4 Qgg7 Rd5 Bc8 Bd2 Bc3 b5+ Ka5 Rb4 Rb3 Rd4 Na4 b6 Rd5 b7 Nd3 b8N Bb7 Nd7 Ndc5 Ndb6 Be2 Bc1 Rd8 Rd1 Bbf3 e4 Rd2 Kc6 Rd4 Bg5 Bd2 Bf6 Bg5 Rd2 Qg8 Bg7 Bh4 Bh8 Qgg5
1RNb1N1N/rpPP1p1K/2q1nkBn/r2Q2Rr/1rp2P2/2p3Bb/1PB5/1q6 w - - 0 1 illegal: No proof kernel
2q5/B2k1N2/prRpqp2/1npPR2B/PK1N1P2/2Pq1b1N/1Q5B/4qbbr w - - 1 4 illegal: No possible last move
3q1KB1/8/r1nR1BR1/p1N1Nqp1/2B1rqnp/kpQ3PP/P1P3b1/4r1Rq w - - 0 1 legal: proof: e4 d5 f4 e5 b4 c5 Qg4 cxb4 Qd1 Bd6 Nc3 dxe4 Nb1 e3 Ne2 e4 Ng1 Be5 fxe5 Be6 Qh5 Bf5 Qd1 Bc8 Ke2 Ke7 d4 f5 e6 Kd6 h3 h5 d5 Kc5 g3 a5 d6 b5 d7 g5 e7 f4 e8B b3 Bb2 Kb4 Bg7 b2 Bg2 h4 Nd2 b1Q Nb3 Ka3 Qe1 b4 Qc3 Ra6 Nc5+ b3 Bf1 Nh6 Bf6 Bb7 Nf3 Ng4 Ne5 Qc1 Rg1 Nc6 Bf7 Re8 Bg8 Re7 Bg2 Re6 Rd1 Re8 Rd6 Qh1 Rg1 f3+ Kf1 f2 Ke2 Re6 Bf1 Ba8 Bg7 Re8 Rg6 Bb7 Bf6 Re6 Kd1 e2+ Kd2 e1R Bc4 e3+ Kd3 e2 Na4 f1Q Nc5 Qc7 d8R Qf4 Rd6 Qb6 Bd5 Qf5+ Kc4 Qd8 Kb5 Ba8 Bc4 Qhf3 Na4 Q3f4 Kc5 Re7 Kd5 Rb7 Nc5 Rb4 Bb5 Re4 Bd3 Qf3 Bc4 Q5f4 Ke6 Qf5+ Kf7 Q3f4 Bd3 Na7 Rc6 Rb4 Qd2 Rb1 Rc1 e1Q Qc3 Qh1 Rg1 Re1 Rd6 Bg2 Bb5 Rbe4 Bc4 Nc6 Kg7 Qc7+ Kf8 Qd8+
1k2b2R/2Nb1p1r/K2NnB1p/2Pp1n1q/4b1NR/p2P2QP/P2n3B/2bn3B w - - 0 1 legal: proof: f4 c5 b4 cxb4 Na3 e5 Nb1 exf4 g4 Qc7 g5 Qa5 g6 Qd8 Bg2 b5 Nc3 a5 Nb1 h6 Bf1 Rh7 gxh7 Be7 Ba3 Ba6 Nc3 Qb6 Ne4 Nc6 Bc1 Kf8 Bb2 Nf6 Be5 Re8 Ng5 Nb8 Ne4 Qd8 Bc3 Bc8 Bb2 Bc5 Ba3 Ke7 Bc1 Rh8 Nc3 Ng8 Nb1 Ke8 Nc3 Bd6 Nb1 Bf8 e4 d5 Ke2 Kd7 Kd3 Kc7 c4 g5 h3 g4 e5 g3 e6 g2 e7 a4 Qe1 b3 Qg3 b4 Qf3 b2 Kd4 b3 Kc5 Nd7+ Kb5 Nc5 e8N+ Kb8 Nd6 Qh4 Qg3 f3 Kb6 f2 Nf3 g1N Ne5 Ne7 Ng4 Ne2 Bg2 f1B Nc3 b1N Rg1 b2 Bh1 Qh5 Ncb5 Ne6 Nc7 Bd7 Ka6 Nf5 c5 a3 Rg2 Bg7 Rf2 Bd4 Rf4 Be3 Ra4 Nec3+ d3 Nd1 Re4 Nd2 Rb1 Bg2 Ra4 Be4 Rd4 Rg8 h8B Rg7 Ra4 Rh7 Bf6 Bf4 Rd4 Nf1 Be3 Nd2 Bg1 Be3 Bh2 Bg5 Rc1 b1B Rcc4 Bc2 Ra4 Bf3 Re4 Be3 Re5 Be4 Rc4 Bca4 Rd4 Nd8 Re8 Bg5 Rg8 Be8 Rh8 Bad7 Rc4 Ne6 Ne5 Bf3 Rh4 Be4 Ng4 Nf1 Qf2 Bc1 Qg3 Nd2
N3n1bk/1B1BB2p/rp1p1rqb/4nRb1/1PpP4/n1P2P2/1NK3pQ/RR6 w - - 1 3 illegal: No proof kernel
8/k2p2Np/p1R2Q2/r1n2r1P/P3pR1p/nr2P1bB/Pq1b1NRK/q1B4B w - - 2 3 illegal: No possible last move
3NB2r/qpK1p1p1/r3Pq1N/4k1b1/PQ4BN/pP2p2R/1nPn1B1R/1r5b w - - 0 1 illegal: No proof kernel forced: wxDB
1QR3rk/4pqnr/Ppr1prpR/1P4P1/2B3P1/B1bpR3/n5NN/3N2Kb w - - 0 1 illegal: No proof kernel
1q1b1R2/2p1kbp1/qRP2q1p/p1q5/rR2rQn1/3B1p2/NP1B1PPN/1B2K3 w - - 0 1 illegal: No proof kernel
R7/1pr5/BPPBp2p/RRb1Pr1r/1n1N1p2/1pNnkp1Q/B2qb2P/K7 w - - 1 3 legal: proof: d4 c5 dxc5 g5 b4 a5 f4 gxf4 b5 Nh6 Qd2 Ng8 Qb4 axb4 Kd2 d5 g4 Kd7 a4 Ke6 e4 Ke5 c4 Kd4 Kc2 f5 Kb2 h6 g5 f3 b6 f4 a5 Nf6 e5 Nfd7 c6 Rg8 a6 Nc5 a7 Bf5 g6 Bd3 c7 Be2 c8Q Nc6 Ra5 Nd3+ Ka1 Qd7 Bb2+ Ke3 c5 d4 g7 Rb8 a8R Qd5 Qh3 e6 Nc3 b3 Ba3 Be7 Rb5 Ncb4 c6 Bc5 Raa5 Rgf8 g8B Rbc8 Bh7 Rc7 Be4 Rf5 Ra8 Nf2 Bb1 d3 Ba2 d2 Raa5 Nfd3 Ra8 Bd1 Nge2 Qd8 Nd4 Be2 Rg1 Rh5 Rg8 Rf7 Raa5 d1R+ Bb1 Rd2 Ba2 Rff5 Rh8 Bd1 Rf8 Rg2 Rh8 Rg7 Rf8 Rc7 Rg8 Qh4 Rga8 Qe1 Be2 Qd2 Bf1 Nd5 Bb4 Be2 Ba3 Bf8 Bd6 N5b4 Be7 Ne1 Rc5 Bd1 Ba6 Be2 Rcb5 Ned3 Bd6 Rd7 Bb8 Bc5 Bd6 Rc7
R3NN1r/npb2pq1/P3b1Bp/p1RnpbRK/QP1k1r2/P3N3/2p1P3/2B5 w - - 1 3 illegal: Other
1Nqr4/1n2pn2/1P1k2P1/Q1r1R3/Brb1BnP1/1q1P3R/r1RN4/1Q4K1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 b4 a5 Ra4 Bg7 Ke2 Bc3 Ra1 a4 Ke1 a3 Bb2 axb2 Ra2 Bd4 Ra7 Bb6 Ra1 Ba5 bxa5 Ra6 Rh3 Ra7 Rh1 Ra8 f4 Kd7 Kf2 c5 g4 h5 a6 c4 g6 c3 d6 h4 a7 c2 f5 c1R f6 h3 f7 h2 f8R Rc5 Nf3 Na6 Ra5 Nh6 Nd4 Nf7 Nc6 e3+ Kg2 e2 Nb8+ Ke6 d7 e1N+ Kf2 Qe8 d8Q Ng2 d3 Nf4 Bg2 Rg8 Nd2 b1R Bc6 Rb4 Qb1 Rh8 Rc1 h1Q Rc2 Qd5 Kg1 Qb3 b6 Ke5 Ba4 Be6 Rg8 Rh2 Rh8 Bc4 Rh3 Qf8 Qd7 Qc8 Qf5+ Kd6 Rb5 Rc6 Re5 Nc5 Re4 Nb7 Qa5 Rc5 Re5 Qc7 Na6 Rd8 a8B Re2 Nb8 Qc8 Qa6 Na5 Be4 Nb7 Qf1 Re1 Qa5 Ra1 Qb1 Ra2
N1n5/1P1pQ2P/rrR1B1b1/1P3R2/Bp2k2b/1N2b3/1PRnp1nQ/6K1 w - - 0 1 legal: proof: f4 c5 g4 g5 fxg5 f5 e4 h6 exf5 Nf6 d4 cxd4 g6 Bg7 g5 Bf8 g7 Ng8 g6 Qb6 Bf4 Qc7 Bc1 Qd8 c4 b5 a4 a5 c5 b4 Be3 Qb6 Bg5 Qb5 axb5 hxg5 Qd2 Ra6 Qd1 Rb6 cxb6 Rh5 Ra4 Rh7 Ra1 Rh8 Kf2 e5 h4 Ke7 f6+ Ke6 h5 Kd5 h6 e4 f7 e3+ Kg2 d3 h7 d2 Ne2 g4 Ra2 g3 Qa4 d1N Qc2 a4 Na3 Nc6 Nc1 Ne5 Rh2 Ne7 g8Q Nc4 g7 Bb7 Kg1 g2 Be2 Nd2 Nb3 Nc8 Nc4 Be7 Qf8 a3 g8B Bh4 Qe7 Bc6 Ra1 a2 Rc1 a1R b7 Ra6 Bg4 Rb6 Bf5 Nf1 Qe2 Nd2 Be6+ Ke4 f8R Bd5 Qh5 e2 Rc2 Bc6 Rf5 Ne3 Bgf7 Rg8 Rh1 Ra6 Nb6 Rg6 Na8 Bd5 Qh6 Bc4 Rh3 Bd3 Rhf3 Rb6 Rfc5 Rf6 Rff5 Rg6 Rc6 Ra6 Kh2 g1B+ Kh1 Ng2 Qh5 Bf6 Qh2 Bh4 Bg8 Be3 Bgf7 Bf4 Kg1 Be3+ Rf2 Bf4 Bd5+ Kf5 R6c5 Rh6 Nd4+ Kg4 Bb3 Rhe6 Ba4 Bg6 Nb3 Reb6 Rc6 Kf5 Be6+ Ke4 Rf1 Bfg5 Rf5 Be3+
2QKQ1B1/2b5/Bkbn1R1b/R3p1N1/R2p1P1N/PP3Pp1/7n/2nb1n2 w - - 0 1 legal: proof: g4 c5 d4 h5 b4 hxg4 b5 f5 e3 a5 Ba3 c4 Bb4 f4 exf4 axb4 Ne2 g5 Rg1 b3 Kd2 b2 Qe1 Rh3 Qc1 Qb6 Qd1 Qc5 dxc5 Rb3 Ke1 Ra6 bxa6 b5 Rh1 b4 Nd2 b1B Ng1 Rf3 Bd3 b3 Be2 b2 Bf1 Rb3 cxb3 Bg7 Ne4 Bh6 Nd2 Bf8 Ke2 Kd8 Ke3 Kc7 Kd4 e5+ Kd5 d6 h4 c3 h5 c2 h6 c1N h7 g3 h8R g2 a7 g4 a8B g3 c6 Bb7 Ke6 d5 Ndf3 Bc2 Nh3 g1B Rh6 b1N Nhg5 Kb6 c7 Nf6 c8Q Ng4 Rf6 Bc6 Ba6 Nh2 Nh4 Nd2 f3 Bh6 Ke7 Nd7 Kd8 Nc5 Qe2 Ndf1 Qb5+ Ka7 B8b7 Bd1 Qa4 Ne4 Bc4+ Kb6 Bba6 Bf2 Rg1 d4 Bg8 Nd6 Rg2 Be3 Rc2 Bf2 Rc5 Be1 Rd5 Bb4 Ra5 Bb7 Qe8 Bc6 a3 Nf5 Ra2 Bd6 Rc2 Bb8 Rc4 Nd6 Rca4 Bc7+
3q2r1/8/N2bKbrP/1Pb2P1b/P3rkn1/1R2R1R1/1B1bb1B1/nQ3NQ1 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 d5 c4 Ra7 cxd5 Ra8 b3 a4 Qc2 a3 Qc3 Nh6 Qb2 Ng8 Nc3 b5 Nb1 axb2 a4 b4 Ra3 bxa3 b4 Qd6 Nf3 Qd7 Ng1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 e6 h4 a2 h6 a1R h5 g4 h7 c6 b5 g3 f6 g2 h6 Nd7 f7 Ra6 Nh3 g1B+ Nf2 Nc5 Rh3 Nf6 Rg3 Ng4 Bg2 Rg8 h8Q e5+ Kc4 e4 d4 e3 f5 e2 Nd2 b1B Qg7 e1B Nd3 Be6 Nb4 Nb3 Nf1 c5 Bb2 Bd2 Re3 Be7 f8Q Bf7 Rg3 Rb6 Na6 Bh5 Qe8 Bh4 Qe1 Bf6 Re3 Bc2 Qb1 Bd1 Rg3 Ra3 Qg6 Na1 Rb3 Kd7 d6 Be2+ Kd5 c4 Rg3 c3 Qg7+ Ke8 Ke6 c2 d5 c1B Qg5 Rc3 Qe3 Bh2 Qg1 Rc4 Rb3 Bb4 Re3 Bc5 Rb3 Rb8 d7+ Kf8 d6 Rg6 Rg3 Bd2 Re3 Bhe5 Rb3 Kg8 Rg3 Re4 Rb3 Qf8 d8R Rc8 Rd7 Qd8 Re7 Ra8 d7 Bed6+ Kd5 Kf8 Re5 Kf7 Re6 Qc7 d8R Rb8 Rh8 Rbg8 Re8 Qd8 Re5 Rb4 Ree3 Re4 Rg3 Bfc3 Rh7+ Kf6 Re7 Kg5 Re6 Kf4 Re5 Rb4 Ree3 Bf6 Ke6 Re4+
2n3r1/1nr1P2n/1NbrP1PK/1b3k2/B3R1N1/r3nP2/1r1BQ3/1R3qBQ w - - 0 1 legal: proof: c4 d5 d4 dxc4 a4 e5 dxe5 b5 axb5 Ba6 Qa4 Bb7 Qd1 Bc8 h4 f5 g4 g5 Ra2 Bh6 Ra5 fxg4 Ra1 g3 Bg2 g4 Bf1 Bg5 hxg5 Qd7 Nf3 Qd5 Ng1 Qd8 e4 Kf7 Ke2 Ke6 Ke3 c5 Kf4 h5 b4 a5 g6 c3 b6 a4 b7 h4 b5 c4 b6 c2 Ra3 g2 Rhh3 g3 Kg4 c3 Qd2 Qf8 Kg5 Nf6 Qe1 Nh7+ Kh5 Nd7 b8Q Ba6 b7 Bb5 Qc7 Nb6 b8B Rg8 Qg7 Nc8 Rb3 a3 Be2 a2 Rb4 a1N Nf3 g1R Rh1 h3 Qh6 g2 Bd2 c1N Nh2 c2 Na3 Ncb3 Ng4 c1R Nc4 h2 Nb6 Nc2 Bd1 Ne3 Qe2 Na5 Ba7 Rc7 Ba4 Rb1 Rf1 Rb3 Rb1 h1B Rd4 g1R Rc4 Ke7 e6 Rb2 e5 Nb7 Rd4 Bhc6 Re4 Qf7 f3 Rd1 Be1 Rd6 Bd2 Nf8 Qh8 Nh7 Kh6 Qf5 Rc4 Qd3 Re4 Ke8 e7 Qc4 Nd5 Kd7 Bc5 Ke6 Nb6 Kf5 e6 Nd5 Bg1 Ne3 Qc3 Ra6 Qc1 Ra5 Qce1 Qc1 Qh4 Qf1 Qh1 Ra6 Bd1 Raa2 Ba4 Ra3
1RQ2qrq/1Q1Pb2P/nn1rn1nN/6rP/8/2q5/Nk1B1PK1/3Rr1BR w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 f5 axb5 Be6 e4 Nd7 g4 Kf7 h4 Ngf6 h5 Ng8 Bd3 Nb8 Bc2 Ke8 h6 Bf7 Bd3 Bh5 gxh5 Kd7 Be2 Ke8 Bg4 fxe4 Bf5 Nd7 Bg6+ hxg6 Qa4 Nb8 Qc2 Na6 Qd1 Nb8 Kf1 Kf7 d4 Kf6 b4 c5 d6 a5 d7 e5 b6 e3 b7 a4 b5 g5 d5 g4 h7 g5 b6 c4 d6 e4 Qd5 a3 Rh2 e2+ Kg2 e1Q Kh1 g3 Bf4 e3 Qe4 a2 Qe8 g4 Rh3 g2+ Kh2 c3 Rh4 c2 Nf3 g1N Nbd2 c1N Nc4 e2 Bg3 Be7 Nce5 Ra6 Kg2 Nd3 Rd1 a1Q Kh2 Nh3 Ng1 Qea5 Nc6 e1R Bf4 g3+ Kh1 Qc1 Nd4 Qaa1 Nf5 g2+ Kh2 Nb2 Kg3 Bf8 Ne2 Ng5 Bd2 Nc4 Nc3 Ne7 Na2 Ke5 Nh6 Rg8 Rh1 Kd4 Kh2 Qc8 d8Q g1R d7 Ng6 Qde7 Ne6 Qg5 Be7 Qb5 Rg5 Qf8 Qe8 Kh3 Qf7 Qc8 Qf8 Kh2 Kd3 Qbc6 Kc2 Qd5 Nc6 b8B Qh8 b7 Nb4 Bc7 Qa3 b8R Qac3 Qdb7 Kb2 Bg3 Rd6 Kg2 Ra5 Bh2 Nb6 Bg1 Na6 Qa8 Rad5 Qab7 Rg5+
q1b1q1k1/nB3R1N/1P1n2B1/3p3R/PNQnq3/KP1bQ3/N1r1P3/rb6 w - - 0 1 legal: proof: d4 a5 g4 c5 f4 h5 gxh5 e5 b3 a4 Bd2 c4 Bb4 Bc5 dxc5 exf4 Ba3 b5 Bb2 a3 c3 b4 cxb4 axb2 b5 Kf8 Nc3 Ke7 Nb1 Ke8 Kd2 Kf8 Kc3 g5 Kb4 d5 h4 f5 a3 g4 h6 f3 h5 g3 h7 g2 b6 c3 c6 f2 h6 c2 c7 c1Q Nh3 g1N Ng5 f4 Bh3 f1Q Qd3 f3 Nc3 b1B Bf5 f2 Qc4 Qf4 Na2 Qe4 Bg6 Nf3 Rh5 Qde8 a4 Nd4 Ka3 Nbc6 Qc5+ Nge7 Qc4 Ba6 c8B Nef5 Bb7 Rg8 h8N Nd6 h7 Na7 Nhf7 Rc8 h8Q Qfg2 Qd3 f1B Qe5 Rc2 Nd8 Qh2 Qb5 Bh3 Qc4 Bc8 Nc6 Rg7 Qe7+ Kg8 Ncb4 Qhf4 Nh7 Qff8 Qg5 Rf7 Qe3 Rf1 Qcc3 Bd3 Qc4 Rg1 Nc3 Ba2 Rf1 Rh1 Rf4 Ra1 Rf7 Bb1+ Nca2 Qc6 Ba6 Qa8 Bb7 Qfe8
R1B2N2/B2P1n2/QP1PnpK1/4R3/1Pb2n2/1r2r3/1rNb1q1Q/n1kBb3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 Bd7 b4 Be6 b5 Bc8 h4 g5 e4 gxh4 f6 Kd7 e5 exf6 e6+ Ke7 exf7 Kd7 Kf2 Kd6 Kf3 Kc5 Ke4 Kb4 d4 c5 g4 a5 g5 h5 g6 a4 d6 h3 d7 h4 Kf5 a3 b3 a2 d5 h2 g7 h3 Ne2 c4 Bd2+ c3 Ng1 Ba6 Qf3 Qb6 Ne2 Nc6 Qg4+ Nd4+ Kg6 Re8 Bg5 c2 Be3 c1B Qh4 Nh6 g8B Bd2 Nf4 Ne6 Bg1 Qf2 Na3 Kc3 Be2 Kb2 Bd1 Bfb4 Nc2 Ba5 f8Q Nf7 d6 Be1 Qg3 Bad2 b4 Rh5 Qg2 Rc5 Qc6 Rc3 Qh6 Rb3 Bh7 Qf3 Ba7 Qf2 b6 Bc4 Qb7 Re7 Rf1 h1N Qa6 h2 Rg1 Re8 Rg5 Ng3 Re5 h1R Qh2 Ne2 Bg8 Neg5 Ne6 Nf4+ Kg7 Rg1 Nf8 Rg2 Bh7 Re7 Be4 Re8 Bb7 Re6 Rd5 Ree3 Bc8 Nge6+ Kh7 Qg3 Rf5 Rge2 Re5 Qf2 Rc1 a1N Rb1+ Kc3 Rb2 Kd3 Ra2 Kc3 Ra3 Kb2 Raa5 Kc1 Ra3 Ng2 Kg6 Ngf4+ Kf5 Rb1 Bb8 Reb3 Qa5 Nd5+ Kg6 Re4 Qb5 Ree3 Ra8 R1b2 Ba7 Ra2 Qa5 Rab2 Qa6 Ndf4+
4b3/NnP2K2/r6q/B2BbP2/Q3n1pP/N1rR1N2/b3bP1R/k1r1Q2n w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 g5 h4 b3 c4 e4 h6 b2 c5 e3 c6 d3 b6 d2 b7 g4 h7 e2 Na3 b1B Ra2 e1R Be2 Na6 b8N Nc5 Rh3 Ra6 Bc4 Bd6 Bb2+ Be5 Bd4 Qf8 Nf3 Qh6 Bb5 Nb7 Ra1 Ba2+ Qb3 d1B Ba4 Be2 Rh1 Rc1 Rh2 d6 Bb5 Bd7 Bc3 Be8 Be1 Rc3 Ng5 Rc1 Ke4 d5+ Ke3 d4+ Ke4 d3 Kd5 d2 c7 d1N Nf3 Rc3 Bc4 Ne3+ Ke4 Rc1 Bd5 Nf1 Ba5 Rac6 Qa4 R6c3 Bb3 Ng3+ Kd5 Nh1 Nc6 Kg7 Na7 Nf6+ Ke6 Ne4+ Ke7 Rf8 Bd5 Rf6 Rb1 Rg6 Rb4 Ra6 Rd4 Bg6 Kd7 Kf6 Rd3 Bh5 Kc8 Be8 h8Q+ Ke7 Qh7+ Kd6 Qg8 Kc5 Qe6 Bf7 Kd7 Be8+ Ke7 Bc6 Qd1 Be8 Bb6+ Kb4 Qd7 Bc4 Qe1 Kb3 Ba5 Ka2 Qb5 Ka1 Qa4 Bd7 Kf7 Ba2 Qed1 Bc6 Qe1 Be8+
Bb1r4/2K4P/3pN1P1/1qBNqq1k/b1Q1qn2/1NQ1P1r1/5P2/1Rn3Rq w - - 0 1 illegal: No proof kernel
3n1r1Q/3r1n2/P1B1N1qP/p1N1R1P1/qqBRK1P1/1b2bn2/8/n3k1NQ w - - 0 1 illegal: No proof kernel
5bRn/BRn2P2/5P2/k1q2rQ1/2bbB3/np2P3/NqbPB3/3QKN1r w - - 0 1 legal: proof: c4 g5 h4 e6 b4 gxh4 b5 d5 cxd5 a6 dxe6 axb5 exf7+ Kd7 Bb2 b4 Ba3 Kc6 Bc1 Kd7 g4 Kc6 f4 Kb6 a4 h5 f5 c5 f6 c4 e3 h3 g5 h4 g6 c3 g7 b3 Be2 h2 Bf1 h3 Ba6 c2 Ke2 b2 Bb5 Bf5 Qe1 Ka5 Ba6 b5 Nf3 b4 Bb7 b3 Qf1 Qe7 Rg1 h1Q Be4 h2 Nc3 b1N Ba3 c1B Qd1 Na6 Ke1 Nc7 Bc5 Bb2 Na2 Na3 Ba7 Qc5 Bd3 Bh7 Be2 Ne7 g8Q Bd4 Qg5 Ng6 Rc1 Re8 Rc4 Re7 Rb4 Re5 Rb7 Rf5 Ne5 Qg2 Ng4 h1B Nh2 Qgc6 Nf1 Bd5 Rg3 Bc4 Rg4 Ka6 a5 Q6b6 Rg2 Kb5 a6 Ka5 Bb8 Qbb4 a7 Qc3 a8B Qb2 Rg4 Rg8 Ba7 Nh8 Rb4 Rg6 Be4 Rh6 Rb7 Rh4 Qh5 Rh1 Rg8 Rf3 Qg5 Bf5 Bd5 Bc2 Be4 Rf5
1r6/qP1q1kqB/1b2R2Q/2QP1pBn/Bn1P4/5PNr/4b1K1/2qNR2b w - - 0 1 legal: proof: b4 c5 bxc5 b5 e4 Qb6 a4 Qc7 axb5 Qd8 h4 d5 exd5 g5 g3 gxh4 Rh2 hxg3 Rh3 Bg4 Rh1 Bc8 d4 f5 c4 e5 b6 h5 c6 a5 c5 h4 c7 g2 c6 a4 f3 a3 Kf2 e4 Ne2 g1Q+ Ke1 a2 Be3 h3 Qc1 h2 Nbc3 Qg7 Kf2 Nf6 Ng3 Bc5 Kg2 Na6 Bb5 Nb4 b7 Rh3 Rd1 Bd7 c8Q Bb6 c7 Kf7 Rd2 Qe8 Re2 Nh5 Rb1 a1Q Bf4 Qa7 Ba4 Qe7 Qh8 e3 c8B Bb5 Qh6 Ke8 Bg5 Rb8 Be6 Qd7 Bg8 Bd3 Bh7 Kf7 Nd1 Bc4 Nf2 Bd3 Qc5 Bb5 Rc2 e2 Rbc1 e1Q Re2 Qd1 Re6 Be2 Ra1 Qc2 Re1 Qc1 Nd1 h1B+
B1Q4n/1P1P1B2/1QNN1P1k/5KNb/b1qp4/rnn2R2/P3rRq1/4b2n w - - 0 1 illegal: No proof kernel
4r2N/PPK1N2k/1rq1q1b1/B1q1QP2/2Bp1bq1/P1nQ2B1/R3R3/1n2n3 w - - 0 1 illegal: No possible last move, all moves rejected
N3rnN1/1b4Pr/BK1n1rr1/1b2RQRQ/P3B1qp/5N2/n4P1P/2kn4 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 d4 axb4 d6 Bd7 d5 Bc8 g4 f5 gxf5 g6 f6 Qe7 Bb2 Bg7 fxg7 Qd8 Bd4 exd4 Kd2 Kd7 Kd3 b5 a4 h5 e4 c5 e5 c4+ Ke4 b3 Nh3 c3 Na3 c2 Nb1 c1N Nf4 d3 Kd4 g5 Kc5 d2 Bd3 g4 Na3 b4 Rf1 b2 Re1 b1R Ng2 h4 Re3 b3 Qe2 d1N Re4 g3 Qh5 b2 Ba6 Ne7 Ne1 g2 Nb5 g1R Nf3 Bb7 Nc7 Qc8 Kb6 Nf5 Rg4 Rh6 Rg5 Rh7 Ra3 Na2 Re3 Rc1 Re1 b1B e6+ Kd8 e7+ Kd7 Re2 Bd3 Re5 Bb5 e8B+ Kd8 d7 Rc6+ Ka5 Rf6 Bg6 Nd6 Be4 Rg4 Kb6 Rg3 Ref5 Ke7 d8N Qe6 Nf7 Nd7+ Ka5 Rb8 Re5 Re8 Na8 Nf8 Nh6 Kd7 Kb6 Qh3 Rgf5 Rgg6 Rg5 Qf5 Ng8 Qg4 Ref5 Nf7+ d6 Ke6 d7 Nd6 d8Q Qg1 Ne5 Qg4 Bc2 Kd5 Qd7 Kd4 Nf3+ Kc3 Be4 Kb2 Re5 Kc1 Qf7 Rfe6 Qf5 Ref6
2N2k2/rq5r/1N1K1BQ1/1Pn5/Prn1P1q1/R1BPR1r1/Q1pr4/3b2Nn w - - 0 1 legal: proof: g4 a5 b4 d5 f4 h5 gxh5 e5 c3 exf4 Bg2 b5 bxa5 b4 Be4 b3 Bd3 Bc5 Bc4 Bb4 cxb4 dxc4 Kf2 c5 Kf3 f5 e4 g5 a4 c3 h4 c4 h6 c2 h5 g4+ Ke2 g3 Kf3 g2 b5 c3 h7 b2 h6 Nc6 a6 Qb6 d3 Kf8 a7 Nf6 Nd2 b1R Rh4 Qb7 Nf1 Ne5+ Kf2 f3 Ke3 f4+ Kd4 f2 Kc5 f3 Ng3 f1Q Ra2 f2 Kd6 Qe2 Bb2 f1N Nf5 c1R Rh3 c2 Re3 Qg4 Bc3 Rb4 Ne7 Nfd7 Ra3 Nc5 Qf3+ Bf5 Nc8 Ng3 Qf1 Ra1 Qb1 Nh1 Qb2 Rd1 Qa2 Rb8 a8N Rd2 Nab6 Ra8 Ne2 Ra7 Ng1 Rg8 h8B Rg7 h7 Rc7 Nf3 g1R Bf6 Rg3 Ng1 Rg7 Ba1 Bg6 Bc3 Bh5 h8Q+ Rg8 Qh6+ Rg7 Qg5 Rh7 Bd8 Qf4 Qg6 Bd1 Bg5 Qg4 Bf6 Nc4+
3QB1n1/r3q3/1r1R1p2/1NKP2r1/P4k1P/1N3r2/PQ1R2b1/QqBn1qr1 w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 b3 exf4 Nh3 a5 Ng1 a4 bxa4 Qd6 Bb2 Qd7 Bc1 Qd8 h4 gxh4 g3 h3 Bb2 h2 Ba3 Qd7 Bc1 Qd8 Nh3 h5 Qb3 h4 Ng1 h3 Qc2 Be7 Qd1 Bh4 gxh4 Qd6 Qc2 Qe7 Qd1 Qd8 Kf2 Kd7 d6 Ke6 e4 Ke5 d7 b5 d3 c5 Ne2 f3 Ke3 b4 Qe1 b3 Qd1 c4 Nec3 f2 Qe2 f6 Rg1 h1R Ba3 b2 Rg6 h2 Rg3 Bb7 Rg2 Na6 Nd2 Nb4 Rd1 b1R Bb2 Qc7 d8Q Ra7 Ba3 Rh5 d4+ Ke6 e5 Kf5 e6 Rg5 e7 Nd3 e8Q Rb6 Qc6 Nb2 Nb3 Ba8 Qe1 Qd6 Be2 f1R Nb5 c3 Bh5 c2 Qcc3 c1Q+ Qcd2 Be4 Be8 Qe7 Re2 Kg4 d5 Kf5 Kd4 Bg2 Re6 Rf3 Rd6 Kg4 Qc3 Kf4 Rd2 Qa1 Qec1 Nd1 Kc5 Qb2 Q1c2 Qb1 Bc1 Re1 Qa1 h1Q Qcb2 Qg1+ Kb4 Qf2 Kc4 Rg1 Kb4 Qfe2 Kc5 Qf1
b3Q3/1B1br3/r1nQR3/1K2PN2/QPq1kPp1/3rP2q/2N1bBq1/5r1R w - - 0 1 legal: proof: d4 b5 h4 f5 f4 g5 a4 bxa4 g3 e5 Be3 g4 Bd2 Be7 Bc1 Bg5 hxg5 c5 Rh4 cxd4 Rh1 Na6 Rh5 Nb4 Rh1 Nd5 fxe5 f4 Ra2 f3 Ra1 Nf4 gxf4 Qe7 Bg2 Qf6 Bf1 Qd8 Kd2 Kf7 Kd3 Ke6 Kc4 Kf5 b4 d5+ Kc5 h5 c4 a5 g6 d3 e3 h4 g7 f2 Kc6 a3 c5 h3 Qc2 h2 Qd1 a4 Qf3 d4 Be2 f1Q Bd1 d2 Bb2 d3 Qg2 a2 Ne2 a3 Qg1 Qc7+ Kb5 Qh3 c6 Rh7 Qg2 Bd7 Qd5 Ra6 Bc3 Ne7 Qd6 Ke4 g8Q Qc8 Bc2 d1B Nd4 Be2 Qe8 Rg7 Bb3 d2+ Bc4 d1R Nf5 Rd4 Be1 Rd3 Bf2 Qa8 Kc5 Qb7 c7 Nc6 c8Q Re7 Qa8 Qc7 Kb5 Qc8 Rf1 h1B Bb3 Bhf3 Rh1 Qg2 Rh6 Qh3 Re6 Qg2 Qf7 Qh8 Qa7 Qhh3 Qe8 Nd8+ Kc5 Ra4 Qab6 Ra8 Nh4 Ra6 Ng6 Kf5 Qb5 Ba8 Qa4 Ke4 Bd5+ Kf5 Bb7 Nc6 Kb5 Ke4 Nc3+ Kf3 Rg1 a1Q Rh1 a2 Nb1 Ke4 Nh4 Qd4 Na3 a1R Nf5 Rf1 Nc2 Qc4+
1nn5/1rBPp1Rq/1Pk1N3/1bn2q2/1K2Nn1Q/3Q3B/n2P2Pr/1R1n2Q1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 gxf4 axb5 f5 e4 Bh6 h4 Bg5 hxg5 fxe4 b4 Kd7 g6 a5 g7 c5 d6 h5 b6 e3 b5 h4 b7 a4 b6 e2 Rh3 a3 Rb3 a2 Rb2 h3 Nc3 c4 Rb5 f3 Rb3 h2 Nb1 h1N Bb2 c3 Rb5 c2 Be5 c1N Nh3 Kc6 d7 Nh6 g8Q Ra7 Qgb3 Nf2 Nf4 Qg8 Ne6 Nf5 Nc3 Nd6 Rb1 a1N Ne4 Qh7 Qd3 Nab3 Bg3 Na2 Rg5 Nc5 Rg7 Ra5 Qc1 Nd1 Be5 Ra7 Bg3 Na6 b8Q Rb7 Qa8 Nb8 Qa4+ Nb5 Qad4 Nd6 Bf4 Nb2 Kf2 e1N Ke3 f2 Be2 f1Q Q4c4 Nd1+ Kd4 Qf3 Be5 Qff5 Bg4 Rc7 Bg3 Ba6 Bh3 Nc8 Bd6 Ra7 Bc7 Bb5 Qb4 Ba4 Kc4 Rb7 Qg3 Ned3 Qh4 Qg4 Qba3 Nf4 Qac3 Qgf5 Qd3 Ndc3 Qce1 Nd1 Qg1 Bb5+ Kd4 Qg5 Qhe1 Nb2 Bf5 Qhg6 Qef2 Rh3 Qh4 Qh7 Bg4 Rh2 Bh3 Nc1 Kc3 Nd1+ Kb4 Qgh5 Rf7 Q5f5 Rg7 Na2+
n4rK1/1q6/1pq1b2Q/N1B3nP/P5QP/N2P1q1R/B3qRnr/3kB2n w - - 0 1 legal: proof: c4 a5 h4 d5 cxd5 f5 b4 axb4 e4 e6 exf5 h6 Qh5+ Kd7 Qg5 Bd6 g3 Be7 h5 Ke8 Qe3 Bh4 Qg5 hxg5 gxh4 Ra7 Na3 Ra5 Nb1 Ra8 Ke2 Ke7 Kd3 Kd6 Kd4 c5+ Ke4 e5 f4 g4 d3 g5 a3 b3 f6 b2 f5 c4 f7 Kc5 f8B+ Ne7 f6 g3 d6 g4 d7 g2 f7 g3 Bch6 c3 Bc1 c2 Nd2 b1Q Bg7 Rf8 Ne2 g1Q Bg2 Qe1 Bf6 Nf5 Rh3 Na6 Nf1 Nc7 Bcg5 c1Q Bh8 Qf6 d8Q Be6 Bf3 g2 Qe8 g1N Qc8 b6 Bg2 Nf3 Ne3 Qc4+ Nd4 Qe2 Bh6 Qh1 Rf1 Ra7 a4 Kb4 Bf4 Kc3 Bg3 Kd2 Rf2 Na8 Bg7 Qa6 Nc6 Qb7 Bh8 Rg8 f8Q Qc1 Qh6 Qf8 Bf4 Rg4 Bh1 Rg2 Bg3 Rh2 Bf6 Qc3 Be7 Bb3 Qg5 Qa6 Rg2 Qf2 Nd5+ Kd1 Na5 Qc6 Bc5 Rh7 Qe6 Qab7 Qg4 Qc2 Qh6 Qff6 Bgf2 Ng3+ Ke3 e4 Nc7 Qf7 Nb5 Qfd5 Kf4 e3 Na3 e2 Qgg5 e1N Qg4 Nf1 Bg3 Qe2 Bgf2 Ng5 Bg3 Nc2 Be1 Nce3 Rf2 Ng3 Bf3 Qdf7+ Ke5 Be6 Bd5 Qff3 Bc4 Nh1 Ba2 Qfd5+ Kf6 Ng2 Kg6 Rc7 Kf6 Qdf3+ Kg6 Bf7+ Kg7 Be6+ Kh8 Rf7 Kg8 Rf8#
R3N3/2R3P1/PP1Q2n1/NB1p2Q1/qBq5/qr3PR1/3qk3/nrnb2nK w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 b4 b5 axb5 a5 Bc4 a4 Be2 Ra7 Bf1 Ra8 Bf4 Bh6 Bc1 Bf4 Bc4 Bc7 Bf1 Ba5 bxa5 Ra6 Qf3 Ra7 Qd1 Ra8 g4 Kf7 c4 Kf6 a6 Ke5 f6 Ke4 f7 h5 f8Q e5 c5 a3 g5 h3 c6 d3 g6 d2+ Ke2 h4 c7 a2 g7 h2 Nf3 h3 Qd6 Nc6 Qe6 Nb4 Ba3 Nd3 Bc5 Rb8 Qb6 Ne7 Bd6 Ng6 Rg1 h1Q Bg2 h2 Kf1 Rh3 Qc1 d1Q+ Ne1+ Rf3 Na3 Qa4 Nec2 Rb7 Rb1 a1N Qg5 Nc1 Ne3 Kd3 Nf5 e4 Nc4 e3 Na5 Rh3 Bd5 Qf3 Bc6 h1Q Bc5 Qfe4 Nd6 Qhf3 Ne8 Qec4 Rg2 d6 Kg1 Bg4 c8R e2 Ra8 e1N Bd7 Rg3 Kh1 Qf8 Ba3 Bd1 Rg1 Re3 Rg3 Nf3 Bc5 Ng1 f3 Ke2 Rb4 Qd3 Rc4 Qf4 Qc6 Qda3 Qc7 Qc8 Bc6 d5 Qd6 Rd3 Rc2+ Qd2 Rc3 Rf7 b6 Rf4 Bd7 Rb4 Bb5 Rb1 Bb4 Qg4 Rc6 Qc4 Rc7 Rdb3
Rn1k2B1/PR4P1/1nR4b/bb1P3Q/1n2n2P/1b3bp1/Q6K/rB1N1rN1 w - - 0 1 legal: proof: c4 g5 d4 a5 f4 d5 fxg5 Kd7 cxd5 Nf6 b4 axb4 e4 Ng8 d6 Kc6 d7 Ra4 Nd2 Ra3 Nb1 Ra8 g4 Kd6 d5 Ke5 g6 c6 g7 h6 g5 Ra5 g6 Kf6 Bg5+ hxg5 d6 Ra8 Qa4 Qa5 Qd1 Qd5 exd5 Rh7 Qh5 Rh6 Qd1 Rh8 Kf2 e5 Kg2 b5 d8R b3 a4 b4 h4 c5 a5 e4 a6 b2 d7 Ke7 Nc3 b1N Qc2 f5 Bd3 c4 Kh2 e3 Kg3 e2 Kg2 e1B Nb5 b3 Rh3 c3 Qf2 c2 Be2 c1N Qd4 b2 Qf4 Na3 Rf3 b1B Ra2 Nf6 g8B Ba5 Rb2 Nc4 Rf2 Ne4 Nc7 Nb6 Rb5 Nd3 Qh2 Bh6 g7 Nb4 Bd3 f4 Rc2 Ba2 Rc6 Bb3 Bb1 f3+ Kh3 Ra7 Qa2 f2 Kh2 f1B Rf8 g4 Rd8 Bg2 Rf8 Na8 Rb7 Bf3 Nb5 Nb6 Nc3 Ra8 Nd1 Ra7 Rd8 Ra8 Be6 Rf8 Bf7 Be2 Bg8 Rf1 Rbc7 Bf3 a7 Ba6 Rb7 Bd3 Rf8 Bb5 Rf7+ Kd8 Rf4 N8a6 Rf7 Rc8 Rf8+ Ke7 Rd8 Rc7 Ra8 Nb8 Rc5 Kd8 Rc6 Rc8 Rg6 B3a4 Bd3 Rc1 Rc6 Bb3 Bc2 Ra1 Bb1 Ke7 Rc8 Kd6 d8Q+ N6d7 Qb6+ Ke7 Rc3 Ke8 Qg6+ Kd8 Rc6 Nb6 Qh5 g3+
6rb/nn1N2R1/R2rP2P/1N2p3/K2b1b1B/5bP1/kN1Q3P/1rQ1Bnn1 w - - 0 1 illegal: No proof kernel
4Qr2/1p4qN/1R5r/2P1PbNB/2rq4/qqkP1Q2/3r1PRR/1qnKB3 w - - 0 1 illegal: No possible last move, all moves rejected
5N2/2Qbbb1N/r1r1rR2/1PP1b1rR/2P5/2p1P3/2K1kbQ1/1BBrNq2 w - - 0 1 illegal: No proof kernel
k2B1n2/2Rq1R1P/2n1Qqn1/2K1b2p/2N3qP/P1N1q1P1/2QR1qb1/6qB w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 b4 axb4 g4 fxe4 g5 Bg4 Ba6 Be6 Bf1 Bc8 Nc3 b5 Bg2 h5 Nge2 Ra3 Bh3 Rh6 gxh6 g5 Ng1 g4 Bf1 g3 Nb1 g2 Qf3 Bg4 Qd1 Rg3 fxg3 Bc8 Kf2 Kd7 Ke3 c5 h4 Kc7 d4 Kb7 h7 e5 d6 b3 d7 c4 a3 b4 d5 b2 d6 c3 Qd3 b3 Be2 c2 Bg4 Ne7 Be2 Bg7 Nf3 g1Q+ Kd2 e3+ Kc3 e4+ Kb4 Be5 Nh2 Ng6 Ra2 Qf6 d8R Bh3 d7 Bg2 Nc3 b1Q Ng4 b2 Bf3 e2 Nh6 e1Q Rf8 Ka8 d8Q Qee3 Bd2 c1N Qe7 Nb3 Qc2 Qbd1 Ng4 b1Q Qe6 Nd4+ Kc5 Qb7 Rf7 Qd7 Rh2 Qef2 Bg5 Qde2 Ne3 Qed1 Ned5 e3 Rb2 e2 Rb7 e1Q Rc7 Qe4 Ne3 Qc1 Nc4 Qce3 Bd1 Qg4 Bf3+ Nbc6 Bd5 Nf8 Be4 Qh8 Bd8 Qhf6 Bd3 Ne7 Bg6 Bc6 Be4 Neg6 Bh1 Q2f5 Rd2 Bg2 Qe7 Qff2 Qe6 Nc6+
B1N2Q2/bb1K1Pb1/2PP1r1b/pbRq2r1/8/P5R1/qk3BN1/b3QR1q w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 c5 f4 f5 gxf5 g5 b4 g4 f6 Nh6 f5 Nf7 c3 Ng5 hxg5 c4 Rh6 Nd7 Rh1 Nc5 bxc5 Qa5 Qb3 Qxc3 Qc2 Qd4 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 e5+ Kg3 b5 a3 a5 c6 h5 f7 h4+ Kf2 h3 Kg3 c3 g6 b4 g7 h2 g8R c2 f6 b3 Bg5 c1B Nh3 e3 Rg7 e4 Kf4 e2+ Nd2 e1B Rg8 e3 Ne4 g3 Bh4 b2 Ba6 b1B Rf1 h1Q Bb7 Kc4 Ke5 g2 d5 g1B Nd6+ Kc3 Nf4 e2 Ng2 Ba7 Bf2 Bd3 Rg3 Rh6 Rg4 Bb5 Rg3+ Bce3 Qb1 Bd2 Qe4 e1Q Rc1+ Kb3 Rc5 Qb1 Qb4+ Ka2 Qe4 Rb8 Ba8 Bb7 Ke6 Bc3 Qb4 Ba1 Qe1 Bg5 Be3 Kb2 Bf2 Be7 f8Q Qa2 Qh8 Bf8 Qg8 Rg6 Qg7 Bh6 Qe7 Rg4 Qe8 Rf4 f7 Qg5 Qe7 Rf6+ Kd7 Re8 Nc8 Bfg7 d6 Qgd5 Qd8 Re5 Qf8 Rg5
BR1qn2n/q1N1PN2/1Qp5/5r2/QP1PKpr1/4bP1B/n1qR4/1Nb3k1 w - - 0 1 legal: proof: a4 d5 c3 b5 axb5 Bf5 Ra4 Bg4 Ra1 Bc8 Nh3 e5 Ng1 d4 cxd4 e4 d3 exd3 f3 g5 Be3 g4 Bf2 g3 Kd2 gxf2 g4 Qh4 h3 Qe7 g5 Bg4 hxg4 Qd8 Ke3 Kd7 b4 Ke6 b6 f5 g6 h5 g7 a5 g5 h4 g6 c6 b7 d2 Kd3 a4 e4 h3 e5 h2 Ra3 Nf6 g8N Ne8 g7 Nd7 b8Q Ra5 Ne2 Rh4 Nec3 Rg4 Qc1 d1N Rg1 h1Q Qb2 Qg2 Ra1 a3 Qc1 a2 Nb5 Nc3 Be2 f1Q Nh6 Kd5 e6 Ne5+ Ke3 Nf7 g8B Nh8 Nf7 Bh6+ Kd3 Bd2 e7 f4 Qb6 Be3 Qc2 Qc1 Qa4 Qa3 Rd1 Qf2 Kc2 Qh2 Rd3 Kc4 Nc7 Rf5 Bh7 Qh4 Bf1 Qf2+ Rd2+ Qe2 Qa8 Qa7 Bh3 Rc5 Bf5 Re5 Bc8 Rf5 Bb7 Qh2 Rf2 Qg2 Kb2 Kd3 Rc2 Qd2 Kb3 Ke2 Kc4 Kf2 Rb2 Qab8 Qa4 Kg1 Ba8 Qd1 Rd2 Qa7 Kd3 Qc1 Na3 Qd1 Rc1 a1B Nb1 Na2 Rc5 Qe2+ Ke4 Bb2 Rb5 Qg2 Qba5 Bc1 Rb8 Qe2 Qc5 Qd1 Qb6 Qc2+
2qR2N1/2r1QPPP/3n1bB1/1b2nQ1R/QpN2p1P/5Bqq/1K6/2q2rk1 w - - 0 1 illegal: No proof kernel
K1Qr1rB1/4p3/P2RQPP1/1N2n1B1/qq1R2q1/2rnbp1R/Pn4N1/3k4 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 h4 Ra8 e4 gxh4 Bb2 f5 Bc1 f4 f3 Bf5 exf5 Qd6 Ke2 Qe6+ Kd3 Qe2+ Kc3 Qxf3+ Kc2 Qf2 Kc3 Kd7 Kc4 Kd6 Kb5 Ke5 g4 Kd4 d6 h5 f6 c5 Kb6 h3 a6 c4 d7 h2 d8Q+ Nd7+ Kc7 b5 Kb7 c3 g5 b4 g6 c2 d3 h4 Nc3 b3 Nd5 h3 Qg4 b2 Qc7 b1Q+ Nb4 Qg3 Qd8 Kc3 d4 f3 d5 Nc5+ Kc6 Bh6 d6 Na4 Kb7 Nb2 d7 Be3 Qe8 Nh6 d8R Rf8 Rd6 Rd8 Nd3 Nf7 Qe6 Qg4 Ne1 Ne5 Ng2 Qa4 Bb5 Qg4 Bc6 Qa4 Bd5 Kd3 Bd2 c1N Ne2 Kc2 Bc4 Ncd3 Nc3 Qe1 Bc1 Qd2 Rd1 h1R Nb5 h2 Q8d7 Rf1 Qc8 h1Q Ka8 Qh5 Rd4 Rf2 Rh1 Qda5 Rh3 Q5b4 Bd2 Qg4 Rd1 Re2 Rd6 Bb6 Bg5 Re3 Bd5+ Bc5 Rc1+ Kd2 Rc4 Kd1 Rd4 Re4 Rc4 Be3 Rd4 Rf4 Qd7 Rf5 Bg8 Rf4 Qe6 Re4 R4d5 Rc4 Rd4 Rc3
2RB1q1Q/1brbP3/1QP1k3/1R3p1R/PKp2q2/b1NNbP2/3n2r1/1B1b4 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 hxg4 cxb4 c5 Bh6 c4 Be3 Na6 Bc1 Nc5 bxc5 Ra3 Bh3 Ra7 Bf1 Ra8 Kd2 Ke7 Kc3 d5 a4 g5 e4 b5 h4 f5 f3 d4+ Kb4 g3 h5 g2 h6 g4 h7 d3 e6 d2 e5 g3 Rh2 Nf6 Kc3 Rg8 h8R Ra7 Nh3 g1B Kb4 g2 Qb3 d1B Nf4 Rc7 Nd3 Be3 Nc3 g1Q R2h5 Qh2 Rb1 Rg2 Be2 Bb7 c6 Qf4 Bd2 Ne4 Be1 Nd2 Bh4+ Ke8+ e7 Kf7 Rg8 Ke6 Bg5 Bh6 Re8 Bf8 Rb2 Qb8 Rc8 Qa8 Ne1 Qb8 Bd3 Qa8 Bb1 Qb8 Ka5 b4 e8Q+ Be7 Qh8 B7c5 Qa3 b3 Qb4 Bd6 Qb6 Ba3 Kb5 Qa8 Bd8 Qb8 Ra2 b2 Nd3 Qa8 Bc2 b1B Rb2 Ba2 Bb1 Bab3 Ne1 Bbc2 Rb4 Be4 Nd3 Qb8 Ka5 Bd5 Rb5 Kf7 Qa7 Be6 Qb6 Bd7 e6+ Kg6 e7 Kf7 Nb2 Ke6 Nd3 Qa7+ Qa6 Qad4 Qa7 Qg7 Qb6 Bb2 Kb4 Qf8 Qa7 Bc1 Qb6 Ba3+
1N1N4/R4nB1/2r4P/1b1Q2qb/2prr3/BqPqP2k/pB1P1KR1/4qQ2 w - - 0 1 legal: proof: a4 b5 axb5 d5 b3 d4 Na3 Qd5 e3 Qd6 Ke2 Qd8 Kd3 dxe3+ Kc3 e2 Bb2 Qd6 Kc4 Qh6 Qc1 Nc6 Bd4 Bb7 Qb2 Qg6 Qc3 Nb8 Be3 Bc8 Qd3 Qd6 Kc3 Qd8 g4 e1R Be2 h5 Rc1 e5 Qe4 f5 Qf3 e4 Kc4 f4 Kc3 Bc5 Qh3 Nc6 Ra1 Nce7 Bd4 Nf5 gxf5 e3 Bg4 e2 Qd3 hxg4 Bf6 Be3 fxe3 Rh5 Bd4 Rh8 h4 Ke7 h5 g5 f6+ Ke6 f7 a5 f8Q c5 b6 a4 b4 f3 b5 f2 b7 f1B b8B g3 b6 g2 b7 g4 Ra2 g3 Bg7 Rc1 Qf2 e1Q Nc4 a3 Ne2 g1Q Rh2 g2 Nb6 Ra4 Nd7 Nh6 Bd6 Re8 b8B Nf7 h6 Rd4 Bdf8 Qh1 Bbe5 g1Q Nb8 Qgg5 Rg2 Ba6 Qe4 Bb5 Qb7 Qd6 Nf4+ Kf5 Qd5 Bfe2 Qf1 Bh5 Ra1 Qhh4 Ne6+ Qhf4 Nd8 a2 Rb1 Qd7 Rb4 Qd6 Ra4 Qe6 Ra7 Qgg6 Rf2 Kg4 Rg2+ Kh3 Bef6 Qb6 Bd6 Ree4 Bdf8 Rc4+ Kd3 Qfg5 Be5 Rb1 Bef6 Rbb4 Bb2 Ra4 c3 Rcd4+ Kc2 c4 Bfa3 Ra6 Qf3+ Qeg3 Kd1 Qb7 Ke2 Rc6 Kf1 Qb6 Kg1 Qd6 Qf1 Qe1 Bc5 Qa5 Bca3 Qab4 Nd7 Qb3 Nb8 Qb1 Kf2 Qd3 Ra5 Qh2 Ra7 Qh1 Qe2 Qa1 Qf1 Qe1+
8/1KR1n1nP/1qNQ4/3BR2b/P2p3p/1BPkbQ1r/1Pq3Bq/N1nn4 w - - 0 1 illegal: No proof kernel
3Q4/1q2rKP1/p3PP2/bp1nB3/3R2N1/bq1BQR1r/1P3Rr1/1qqkN3 w - - 0 1 illegal: No possible last move, all moves rejected
1QNR4/3n1rPP/1N1q1P2/q1bBn2P/3pQKB1/rq4pr/3RR3/4r1k1 w - - 0 1 illegal: No proof kernel
KQQq4/r3RpPp/bR3NqQ/b1bP4/r7/2B4n/kP1P1N1b/B1q5 w - - 0 1 illegal: Other
1nn2r1Q/p2n2Bn/Pk5b/1q3P2/1nn2BQ1/1P5K/RNNR2Pp/5Q1b w - - 0 1 legal: proof: d4 c5 c4 f5 e4 b5 exf5 bxc4 Be3 c3 Bc1 c4 h3 g5 Be2 Bb7 Bg4 Bd5 h4 Bf7 h5 Bg6 Bh3 g4 hxg6 gxh3 Qe2 Nc6 Qf3 Rc8 Qg4 Nb8 Qd1 Rc5 dxc5 Qa5 Qg4 Qb6 Qd1 Qd8 Kf1 d5 f4 Kd7 a4 Kc7 c6 e5 f6 h5 f7 e4 a5 e3 f5 d4 b3 h4 a6 d3 g7 c2 Ra2 e2+ Kf2 e1N Rb2 h2 Be3 c1N Nf3 d2 Qe2 d1N+ Kf1 c3 Bf2 h3 Ra2 c2 Nbd2 Qd5 Nc4 Ne7 g8Q Ncd3 Be3 c1N Qg4 Qb5 Nb2 Bh6 f8B Nc5 Nd4 Ncd7 Bf4+ Kb6 c7 Ne3+ Kf2 Nc4 Kg3 Nf3 c8Q Nd3 Nc2 Ng5 Rd1 h1B Bg7 h2 Qf1 Nb4 Rd2 Nh7 Kh3 Rf8 Qe8 Nc8 Qeh5 Rf6 Qe8 Rf7 Qh8 Rf8
3NBKNr/3Rn2p/b1B1b3/4p2r/n3P3/2rQP2P/b2PBQ1R/k1r3n1 w - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 a5 b4 b5 Bb2 Qd3 Bf6 Qe3+ fxe3 gxf6 Qc2 f5 Qc1 f4 Qd1 Bg7 axb5 a4 Qh5 Bd4 Qg4 Bb6 Qd1 Ba5 bxa5 Bg4 Ne2 Bh3 Ng1 Bc8 Ke2 Kd7 Kf3 Kd6 g4 Kc5 b6 Kb4 h3 c5 g5 f5 b7 c3 g6 c4 g7 c2 a6 Kb3 a7 Kb2 Bg2 c1N Bf1 a3 Rh2 c3 Ba6 c2 Nc3 a2 Nge2 Nd7 b8Q+ Nb6 Qg1 Be6 Qd8 Na4 Qf2 Rc8 Nd5 Rc3 Nd4 Ne2 a8B c1R Nc6 Ng1+ Kg2 f3+ Kg3 f4+ Kh4 Rc5 Kg5 R1c3 Be2 Ra5 Rf1 a1R Rb1+ Ka2 Rb7 Rac1 Rd7 Ka1 Bb7 Ra6 Nf6 Ra5+ Ne5 Ba2 Bc6 e6 Kh5 Ne7 Kh6 Rb5 g8B Rd5 Neg4 Rh5+ Kg7 e5 Bf7 Be6 Ng8 Ba2 Qh4 f2 N4h6 f1B Be8 f3 Nf7 f2 Kf8 Be6 Qc8 Ba2 Nd8 Be6 Qa6 Ba2 Bd1 Bfc4 Be2 f1B Qf2 Bf7 Bd1 Bd3 Be2 Bfe6 Qb5 Bdc4 Qd5 Bb5 Qd3 Ba6
1brbBR2/5p2/PnNqP1BP/2P3q1/3BR3/1Q1N3b/1pb2q2/3KQ1bk w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 d5 dxc5 h5 Bh6 hxg4 Be3 Bd7 Bc1 Bc8 f3 e5 Bc4 b5 Be2 d4 Bf1 Nd7 f4 Nb6 Bh3 Nd5 exd5 e4 Bg2 Rh5 Bf1 Re5 fxe5 Ra6 Bc4 Rh6 Bf1 Rh8 a4 Ke7 c4 g5 h4 d3 d6+ Ke6 d7 Kf5 c6 b3 c7 b2 h5 b4 a5 g3 a6 d2+ Ke2 Kg4 h6 g2 c5 Kg3 Ra5 b3 Qc2 e3 Nc3 b1B Rb5 b2 Nd1 g4 Qb3 Be7 Nf2 Nf6 Rh4 Nd5 Rb8 Nb6 Nf3 g1B Nd3 Bh2 Kd1 Rf8 Be2 Kg2 Nd4 g3 Re4 Kh1 Nc6 g2 Bh5 g1B Bg6 Bh4 Ra8 Qg5 d8Q Bh3 c8B B2g3 e6 Bb8 Bd7 Re8 Qf6 Rc8 Rb4 Qd5 Qd4 Bd8 Be8 Qg5 Ra4 Ba2 Qe5 e2+ Kc2 e1Q Re4 Qeh4 Kd1 Bb1 Qg3 Qhf4 Qe1 Qe3 Ra7 Qf2 Rd7 Be7 Rd8 Bf6 Bd7 Be7 Rf8 Bd8 Be8 Qgf6 Nf4 Q2d4 Ke2 Qd6 Nd3 Qf2+ Kd1 Ba2 Kc2 d1Q+ Kc3 Qde2 Be3 Bb1 Bd4 Qff4 Bf2 Qeg4 Bd4 Qff5 Kd2 Qgg5+ Ke2 Qf2+ Kd1 Bc2+
QB1BN2r/R1P2Np1/8/1n3bPn/3P2Qb/2pK1r1P/1k1Nn1p1/3Rq2b w - - 0 1 illegal: No possible last move
2Q1q3/3R4/brPP1Kp1/3N4/k1b3p1/2P1QNp1/Br1Pb1Qb/n1B1bR2 w - - 0 1 illegal: No proof kernel
N1q3nk/Pbb2Bpb/R1K2PP1/R7/N1bpQ1Q1/4NP2/1p2b2n/qB6 w - - 0 1 illegal: No possible last move
3r2k1/5n1R/nrbq2PP/B1pP4/q2R1p2/QPBp1p2/4N2q/1NQ2B1K w - - 0 1 legal: proof: f4 d5 d4 g5 a4 gxf4 c3 b5 axb5 e5 dxe5 Be7 Ra5 Bd6 Ra1 Bf8 g4 h5 g5 d4 Qd3 Bc5 Qh3 d3 Qg4 Bd4 cxd4 hxg4 Kf2 Kf8 Kg2 c5 e4 a5 h4 f5 d5 g3 e6 a4 g6 a3 b3 a2 h5 Qd6 e5 Ra6 e7+ Kg7 e8Q Ra3 e6 Nd7 b6 Qc7 b7 Nh6 b8B Ra6 e7 Rb6 Bd2 Qd6 Bc7 Nf7 Ne2 Nb8 Qa4 Na6 e8Q Bd7 Qe3 Kg8 Bc3 Bc6 Qa3 f3+ Kg1 g2 Qec1 Qf4 Rh4 Qd6 Rd4 f4 h6 Rb8 B7a5 Rb6 Kh2 g1Q+ Kh3 Qe3 Kh2 Qd2 Kh1 Qb2 Nd2 Qc2 Rb1 a1Q Rb2 Nb8 Nb1 Na6 Ra2 Qd2 Ng3 Qf2 Re2 Qa2 Re7 Qfd2 Ne2 Qdc2 Qb4 Qa4 Qba3 Ne5 Re6 Rh7 Ng3 Rd7 Re7 Rd8 Rh7 Qf2 Ne2 Nf7 Qcb2 Qg3 Qc1 Qh2+
QB1NB1k1/4b1Pq/K2Rp2p/4p1B1/4n1Pp/1rqbP1q1/2nN2P1/Q2R4 w - - 0 1 illegal: No proof kernel
3nNQQN/rb4p1/pR3B2/1PPr2R1/r2P4/1K1n1kp1/1P1b1Nnp/2B5 w - - 0 1 illegal: No proof kernel
2Q5/3Rb2n/Q2N1r2/b1pNBp2/1prPbb1k/2n1pP2/1K1NP2P/1B5R w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 c5 b4 d6 bxc5 a4 c6 a3 c5 dxc5 Bg2 Qd5 Bf1 Qxa2 Rxa2 Rh6 Ra1 Rh8 d4 b5 Kd2 f5 Kc3 Kf7 f3 Kf6 h6 g5 h7 e5 c7 e4 Nh3 g4 Qa4 g3 Bg2 a2 Bf4 Nd7 Re1 Bb7 c8N Ne7 Qa7 Nd5+ Kb2 Nc3 Qa5 Be7 Bf1 g2 Nd2 g1B Nd6 Nf8 Qa6 Be3 Be5+ Kg6 Bg2 Kh5 Nf4+ Kh4 Nd5 Bf4 Bh3 e3 Rh1 Rg8 h8Q+ Nh7 Rag1 Rgf8 Rg7 Rf6 Bg4 Ra7 Qc8 a1B+ Ka3 Bc6 Bh5 Rb7 Bf7 Ra7 Nb6 Be4 Ba2 Bb2+ Kb3 Ba3 Rf7 Bb4 Bb1 Ba5 Kb2 b4 Nd5 Ra8 Qcb7 Rg8 Qba8 Rg1 Q8c8 Rc1 Rg7 Nb5 Rf7 Rc4 Rg7 Nc3 Rf7 Bf8 Rd7 Be7
1q3r2/3k3B/Pb1B2KP/2qQ1N1Q/1Rr3n1/nP1qb1N1/2RqbP2/2qn1N2 w - - 0 1 illegal: No proof kernel
R4n2/q2bPrnk/Q4Prq/1RB2q1B/2n1Nr1b/3PP3/1K2B2r/NQ2r3 w - - 0 1 illegal: No proof kernel
5B1q/1PP1Rb1K/2QPn1Bn/1N1rrP1Q/5kn1/n3b3/4RNn1/1qb3Qq w - - 0 1 illegal: No proof kernel
K4k1N/P7/2Pb2b1/N1qq1q1b/qRR2rrP/3QB3/QP6/qnr2BBn w - - 0 1 illegal: No proof kernel
2nK1R2/N1n1QbQ1/P5Q1/B1rP2rr/1R1PN3/P2B2bq/b1n1q3/2qk1r2 w - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 h5 e4+ f3 a3 f5 g3 b5 Ne2 c5 Nec3 h3 Nd2 b4 Na4 h2 Ra2 c4 Qe1 f4 Rg1 h1Q Qe3 c3 Qe1 h4 Bb5 f2 Nc4 Kf3 g4 f1N g5 h3 g6 b3 g7 c2 Bd7 h2 Ke6 b2 e5 b1B Qh4 Ke2 Rg5 f3 Rb2 f2 Qh7 Ne7 g8Q Kd1 Rb4 Na6 Nc5 Ba2 Qgg7 Qe8 Bd2 c1R Nd6 Ne3 Nce4 f1R Nb5 Rc5 Qhg6 Rh5 Rf5 Nc2 Na7 Nc7+ Kf6 Qg2 a6 h1Q e6 Qgh3 Bb5 Bd7 Bc4 Nc8 e7 Be6 Bd3 Bf7 Bc3 Qb5 e8Q Bd6 Qe7 Bg3 Q6h7 Rg5 Rf4 Bg8 Be2+ Kc1 Qef7 Rf3 Rc4 Nd6 Qhg6 Rd8 Bb4 Nc8 Ba5 Qe1 Qe6 Rf1 Rb4 Qd2 Bc4 Kd1 Qed7 Qc1 Rf5 Nd6 Ke7 Be6 Rf3 Rh8 Rf8 Nc8+ Kd8 Bf7 Qe7 Rhh5 Rb3 Qb4 Bd3 Qe1 Rb4 Qe2
1N3r1n/1K2P3/2bbQn1n/3B1n1b/PR1qPn1r/2P1r2N/2BR4/3QBkn1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 g4 h5 a4 d5 e6 f5 e7 d3 e3 d2 g6 d4 g7 b3 g5 f4 c3 d3 Qe1 d1N Ra2 h4 Rhh2 b2 Qd2 h3 Be2 f3 Ra3 f2 Nf3 f1R Rb3 Re1 Bf1 Rh4 Ng1 Nh6 g8Q Bd7+ Kc5 b5 Be2 b4 Qf7 Bc6 Qh5 Nf2 Qd1 d2 Qc2+ Nd3+ Kc4 d1B Rg2 h2 Bd2 h1N Qf7 Ng3 Qc1 Nd7 Qf2 Nf4 Na3 b1N Nh3 Nf6 Kc5 Ngf5 Nb5 Na3 Nc7 Nc4 Na6 Ne5 Nb8 Neg6 Ba6 Bg4 Qe2 Nh8 Qcd1 Bh5 Qg4 Qd3 Kb6 Qd4+ Kc7 Re2 Bc4 Re1 Bd5+ Kd3 Rb1 b3 e4 b2 g6 Bg7 Rh2 Re3 Re2 Ng3 Qe6 Ngf5 Ra1 b1N Be1+ Nd2 Rb1 Nhg8 Rb4 Ngh6 Nd7 Rf8 Nb8 Ne8+ Kc8 Be5 g7 Bc7 g8B Bd6 Qb3 Nf3 Rg2 Bb5 Kb7 Ng1 Bf7 Nf6 Rb2 Re2 Rd2+ Ke3 Qd1 Bc6+ Ka6 Kf3 Bb3 Kg2 Bc2 Kf1 Bg8 Bce8 Kb7 Bb5 Qc8 Bbe8 Bd5 Re3 Qe6 Bc6+
n2br3/1P1PNQrP/1k1K1BBR/1qrB4/3bb1N1/r2P4/bR1n3b/2Q2r2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 c5 h4 Kc7 b4 g5 e5 f5 d3 a5 d6+ Kb6 e6 f3 Ke3 a4 e7 g3 e8B a3 h5 f4+ Ke4 a2 Kd5 c4 h6 g4 h7 g2 Qc2 f2 Qc3 f3 Bf4 g3 Rh6 Be6+ Ke5 Nd7+ Kd4 Qb8 Rf6 Ra3 Rh6 Be7 Be5 Bd8 Qc1 c3 Bg6 c2 Nc3 Ngf6 Rb1 a1B Nh3 g1B Bg2 f1B+ Nf2 Ne4 Rb2 Ba2 Bf6 Bh2 Ng4 f2 Bf3 g2 Nd5+ Kb7 b6 g1R b5 Nd2 Bh1 Bg2 Ne7 Be4 Bf3 f1R Bh1 Nc5 d7 Na6 Bf3 Nc7 Kc5 Rg3 Kd6 Re8 Bg2 Qc8 Bh1 Na8 Bf3 Qc4 Bg2 Kb8 b7 Ka7 b6+ Ka6 b8Q Qb5 b7 Kb6 Rb4 Bd4 Rb2 Rf5 Qc8 Rc5 Qf1 c1R Bf3 Bf5 Bd5 Be4 Qf5 Re1 Qe6 Reg1 Qf7 Rf1 Bb3 Rg5 Qc1 Rc5 Bd5 Rcc3 Bf5 Rff3 Ne5 Rg7 Bg6 Rf4 Ng4 Rc2 Rb4 Rc5 Rb2 Rf1+
BB1b2k1/1QnK4/b6n/3NPbnP/P5q1/R2bnr2/2P1brN1/rQR4N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 g5 Kf3 f5 h4 Kf7 e4 b5 a4 d5 h6 d3 h7 g4+ Kf4 b3 h5 d2 Nf3 b2 Nh4 b4 Ng6 g3 Rh2 g2 Rh4 g1N Bb5 d4 Bc6 d3 Bd7 b3 Rg4 Na6 Qe2 d1B Be3 d2 Rg2 Be7 Qf3 Nc7 Re2 Nh6 Nh4 Qg8 Ba7 Bd8 Re1 Ba6 Nc3 b1R Bc6 b2 Nd5 Bde2 Ng2 d1N Ra3 Ne3 Bb8 Ra1 Rc1 b1B e6+ Kf8 Ke5 f4 Kd6 Nh3 e5 Ba2 Qf1 f3 Kd7 f2 e7+ Kf7 e8N Ng5 Qe1 f1B Nef6 Qg7 Ng4 Rf8 h8Q Ba2c4 Rd1 Bcd3 Qh7 Bg6 Rc1 Bf5+ Kd6 Bed3 Nf2 Bfe2 Nh1 Ra7 Qb4 Rb7 Qb1 Rb3 Ba8 Rc3 Qg6+ Kg8 Qe8 Bg6 Qeb5 Rf2 Qb7 Bgf5 Ra2 Nh7 Ra3 Qg4 Q1b3 Ng5 Qb1 Rb3 Kc6 Rb4 Kd6 Rbf4 Kc6 R4f3 Kd6 Nge6 Kd7 Ng5+
1NB3Rn/1b3bbr/4PB1N/1P1r1Nnk/P3R3/q5nb/1n3QPb/1Kr1Q3 w - - 0 1 illegal: No proof kernel
1k1q2bB/b1Rb4/5N1r/1P4K1/1P2B2n/4rNB1/1PrPqrnR/1bQb3Q w - - 0 1 illegal: No proof kernel forced: bxDB
2NQK2Q/1b2P1B1/Pn3q2/3r1P2/B1r2kP1/4Rqqn/bN2b1qb/2R2B1b w - - 0 1 illegal: No proof kernel
b1n4b/2QPkNR1/4qrR1/3qB1PB/P2n1N2/4nqqP/nr3Q2/1K4Qq w - - 0 1 illegal: No proof kernel
5N2/3r2qQ/n7/R1nP2b1/4rbKR/r2nPQNP/bPqBbnB1/k4B2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Ke7 Kg3 Ke6 d4 Kd5 b6 f5 h3 a5 b7 c5 e6 g5 e7 f4+ Kf2 a4 e8B c3 Rh2 Kc4 Qe1 Kb3 Bd2 a3 Bf7+ c4 Ra2 g3+ Kf3 g4+ Ke4 g2 Bc1 c2 Be8 g3 Kf3 c3 Bb5 Rh4 Rh1 Na6 b8Q Be7 Ra1 a2 Qb6 Nh6 Na3 Qc7 Qf2 Be6 Qb7 Bg5 Be3 c1N Qc6 c2 Qb7 Ng4 Qe4 Nd3 Qc6 c1B Qb6 Qc2 Qc6 Rd8 Qc8 Rd7 Qb7 Bd2 Rc1 a1N Nc4 Ka2 Ne5 Nb3 Bc6 Nbc5 Ng6 Bb3 Nf8 Bc4 Qe1 Ngf2 Rd1 Bc1 Qc3 Ka1 Bd2 Ba2 Qa3 Rh6 Bd5 Re6 Qa7 Re4 Qb3 Rd6 Qh7 Rd7 Re1 Nd1 Kg4 f3+ Kf5 Bf4 Kg4 f2 Bc6 Ndb4 Qf3 Nbd3 Bb4 Bce3 Bd2 Bg5+ Kf5 Bef4 Kg4 Nb7 e3 Nbc5 Ne2 g1Q Rh2 g2 Ng3 Qh1 Bd5 g1R Rg2 Qh2 Bc4 Rh1 d5 Qc3 Rg1 Qg7 Bg2 f1B Bb5 Be2 Ref1 Bb1 Rf2 Nc3 Rc1 Nd1 Rc3 Ba2 Ra3 Rf1 Ra5 Re1 Rf1 N1f2+ Kf5 Nh1 Kg4 Rc1 Rf2 Rc3 Bc4 Qg1 Bb5 Qb1 Rf1 Ra3 Rc1 Ndb4 Rc4 Qc2 Rd4 Bd1 Bbf1 Nbd3 Rb4 Be2 Rb6 Nab4 Rh6 Nba6 Rh4 Nhf2+
Bq2N2b/2B3b1/n1q2n2/P2QP3/1PB2n2/k1rRP1b1/3rbKQN/n3r1R1 w - - 0 1 illegal: No possible last move, all moves rejected
qR2n1B1/4r1NP/N3P1Rb/nqB1q3/k1r1nP2/4Kbq1/Nb2Q1P1/Q5b1 w - - 0 1 illegal: No proof kernel
Nn5b/4qqP1/1Nb1b3/1q1R1Qn1/1kb3BP/1rn3N1/1R1P2QP/q1B1K1r1 w - - 0 1 illegal: No proof kernel
b1qqQ2n/r1P1P1n1/3nNn2/1q4q1/2B1R2P/2P4Q/3BQK2/Nk1rrRb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 dxc5 exf4 e4 Ke7 h4 Ke6 b4 Ke5 b6 a5 b7 d5 c6 g5 c7 f5 c3 f3 b5 g3 b6 f4 Bd3 f2+ Ke2 f1Q+ Kd2 a4 Rh2 f3 Ke3 f2 Qh5 d4+ Kf3 g2 Rh3 a3 Qh6 g4+ Kg3 a2 Na3 Nf6 Bb1 d3 Rh2 d2 Qe3 d1R Qh6 Bd6 Bb2 Na6 b8Q Nc5 b7 Ne6 Bc1 Ng7 Qa7 Qb5 b8Q f1N+ Kf2 g3+ Kf3 Ne3 Qa5 Re8 Rh1 Nc4 Bd3 Bb7 Nc2 Ra7 Bg5 Ba8 Rc1 a1Q Ne2 g1Q Ned4 g2 Bd2 Re7 Qab6 Qaa6 Qe3 Qac8 Qe2 Re8 Ne6 Qgc5 Qc6 g1N+ Kg2 Nh3 Re1 Ng5 Na1 Nf7 Qd7 Nh8 Rb1 Re7 Rb4 Qe3 Rf1 Qh6 Kf2 Qg5 Nf8 Re8 Qh3 Re7 Be1 Kf4 e5 Re8 e6 Be5 Rb3 Nd6 Bc4 Re7 Rb4 Re8 Qh5 Ke4 Bd2 Bh2 e7 Re1 Ne6 Rg8 Be3 Rf8 Ba2+ Kd3 Re4 Rd1 Qe8 Rf7 Qb7 Re1 Qa6 Rd1 Nb3 Kc2 Na1+ Kb2 Bd5 Kb1 Bd2 Qbb7 Rfe1 Nfh5+ Ke2 Rf1 Qc4 Rh1 Kf2 Qb5 Qe2 Nf6 Bc4 Qc6 Rg1 Qcb5 Rg3 Rhe1 Rg1 Ndf5 Rh1 Nd6 Rf1 Bg1+
b1NK4/Br1NP3/r5R1/QRb1r1nn/1b1P1r2/1bQ3bP/1P3bk1/1B2Q2q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 b6 Ke5 b7 g5 d6 f5 d3 c5 d7 a5 h3 f3 Kg3 c4 Ra3 a4 Rc3 f4+ Kh2 f2 Qc2 g3+ Kg2 a3 Kf3 g4+ Kg2 a2 Nd2 a1R Ra3 c3 Ne2 Nf6 Qb1 c2 Ra7 Nh5 Ng1 Ra6 Qa1 Bb4 Qa3 Re8 Qb3 Nc6 Qc3+ Nd4 b8Q+ Qc7 d8Q Bb7 Qbc8 Qc6 Qa5+ Qd5 Qcd8 Rb8 Qh4 Ba8 Rb7 Ree6 Rb5 Rb7 Be2 f1R Ngf3+ Kd6 Nb3 Re5 Ng5 Ne6 Be3 c1B Nc5 Kc6 Nf7 Ng5 Rg1 f3+ Kh1 f2 Kg2 Bd2 Nd6 Be1 Bd1 Re8 Nc8 Re5 Na7+ Kd6 Bc2 Qc6 Bb1 Qd5 Kh1 g2+ Kh2 Qc6 Nd7 Qd5 Rh1 g1B+ Kg2 g3 Nc8+ Ke6 Ba7 Bh2 Rg1 Bc5 Qb3 Beb4 d4 Nh7 Kf3 g2 Kg4 Bg3 Qc3 Ng5 Rh1 g1B Rh2 Rc1 Rg2 f1B Bc2 B1f2 Bb1 Re1 Rg1 Rf5 e5 Qh1 Rg2 Kd5 e6 Re3 e7 Bc4 Rg1 Rfe5 Rg2 R5e4+ Kf5 Bb3 Rg1 Nf6 Kg6 Rf4 Kg7 Ree4 Kf8 Nh5+ Ke8 Re3 Kd8 Re5 Ba2 Ke4 Rg2 Be3 Bb1+ Kf3 Rg1 Bh2 Qhe1 Bg3 Rf1+ Kg2 Rf3 Rg4 Rf6 Rf4 Rg6 Bef2
2Nb1qk1/3R4/2rn4/q1Q1n1r1/P2RKbpN/nPqPBP2/3Rr1B1/5bQ1 w - - 0 1 illegal: No proof kernel
1r1bQ3/k1qb1p1B/1qnr1P2/2bq2BQ/P1N2r1P/3n4/NB2P3/R3KRn1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 gxh5 Bb4 Bd2 Bd6 Bc1 Bf8 h4 b5 f4 d5 a3 Kd7 f5 Kc6 e6 Kb7 h6 g5 e7 c5 e8Q g4 h7 c2 Qd4 b4 Qe7+ Bd7 Nc3 c4 Qg5 g3 Nd1 g2 Bb2 c1B Rb1 b3 Qg6 c3 Nf3 g1N Bh3 c2 Nf2 Bc5 Qb4+ Ka7 Qg5 d4 Ne5 d3 Ng6 Nc6 Qd4 Ne5 Qde3 Ne7 Qh5 N7c6 Ne4 Qg5 Bg2 Rhb8 h8B Rb4 a4 Rab8 Nc3 Rf4 Bf3 Qg2 Bg4 Qd5 Qe4 B1e3 Bf6 Bed4 Rd1 c1Q Na2 Be7 Bg5 Bd8 f6 Bc5 Bf3 Qcc4 Ra1 d2+ Kf1 Nd3 Ne5 Qc2 Nc4 Qc3 Qe8 d1R+ Kg2 Qce5 Be4 Qc7 Kg3 Rd2 Bh7 Rd1 Rh2 Rd2 Rf2 Rd1 Rf1 Rd2 Bc3 b2 Bd4 b1Q Be5 Qbb6 Bb2 Qe6 Kg2 Ndb4 Kg3 Rd6 Kg2 Qd5+ Kg3 Rd4 Kf2 Rf4+ Ke1 Nd3+
1R1b1r1n/b1rP2n1/KB6/1BP2nq1/2N2RP1/QpqPrb1k/1QB1N3/7q w - - 0 1 illegal: No proof kernel
2K2Rqb/1PrNpq1n/3RP2N/R3Q3/2qbnrrP/1B3P1n/5bk1/BQ6 w - - 0 1 illegal: No possible last move, all moves rejected
b2NrR1R/3RQBr1/n2Pb3/br1B4/Q2r1pK1/3P3P/q2krP2/3n1nN1 w - - 0 1 illegal: No possible last move
1K2bk2/6Nn/1R2Q2r/pQ4q1/N1N1R1qP/1P1PnPb1/1Bb1Bqr1/b1b5 w - - 0 1 illegal: No possible last move, all moves rejected
4r3/4bnNQ/P5B1/PrB1Q1pn/k2KN1Rn/n1qNnP2/4qP2/4Rr1b w - - 0 1 legal: proof: g4 f5 b4 a5 bxa5 c5 d4 cxd4 g5 f4 g6 f3 exf3 hxg6 Ne2 g5 Ng1 g4 Kd2 d5 Kd3 Kd7 h4 Kc6 a4 g5 c4 b5 h5 e5 c5 b4 a6 b3 h6 b2 h7 g3 a5 Kb5 c6 e4+ Kc2+ d3+ Kc3 g2 c7 d4+ Kb3 e3 Rh5 e2 Be3 e1N Ra2 Nc6 Nh3 g1R Qd2 Be7 Be2 Ng2 Qd1 Ne5 Qe1 Rf1 Ra3 Nf6 Rh6 Rb8 Nd2 b1N Nf4 Bh3 c8N Nh4 Ra4 Nf7 Ne4 Re8 h8Q Qc7 Qh7 Nh5 Re6 Na3 Rc4 d2 Nd3 d1N Ra4 Bg2 Ncd6+ Kc6+ Rb4 Rb5 Nf5+ Nd6 Ng7 Bh1 Nc1 d3 Bc5 d2 Nd3 Ne3 Kc3 d1Q Kd4 Qc2 Bd1 Qd2 Bc2 Qe2 Ng3 Nd1 Bb6 Rc5 Nb2 Qe5+ Kd3 Rh8 Rg4 Kb5 Ba7 Re8 Bb1 Qf5+ Kd4 Nf7 Re2 Qfc8 Bg6 Qe6 Nd3 Ka4 Re3 Rb5 Bb6 Qc1 Bc5 Qc2 Re5 Qeb3 Qe4 Qe6 Qf5 Qc1 Re1 Qe2 Ne4 Ne3 Qe5 Qc3+
3N4/B2rq1kP/1n4nq/K3rbP1/1q1q1q2/NB2nQQP/p2RP2B/R1b5 w - - 0 1 illegal: No possible last move
2n1Qb2/r2Pn2B/2K1b2n/pP2q2b/2NB2k1/1P1NP1b1/2Q1NRq1/3bR2r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 f5+ Ke5 h5 g4 a5 d4 f3 b3 f2 d6 h3 Kd5 h4 g5 f4 g6 f3 g7 c4 Ra4 c3 Na3 h2 Rb4 c2 Nh3 Qc7 Ra4 Nh6 g8Q Ra7 Qe1 Nc6 Qg7+ Ne7+ Ke4 Ke6 Be3 c1B Ng1 h3 d7 Qc5 Bg2 f1N Qh7 f2 d8N+ Kf6 d5 Be6 d6 Nc8 Bd4+ Kg5 d7 Ne3 Nb7 f1B Bf3 Nd5 Nc4 Bf4 Ra2 Bg3 Bh5 Qc7 Bg6 Kg4 Nc5 Qd6 Nd3 Qc7 e3 Be2 Qc3 Bd1 Ne2 Qc5 Qc2 Qd6 Rg1 h1B+ Rg2 h2 Qg8 Qe7 Bh7+ Qg7 Ra1 Qg5 Bg7 Qf5+ Kd4 Qh5 Rf2 Bf3 Qf7 h1Q Qe8 Qg2 Be5 Nde7 Kc5 Nd5+ Kc6 Qf5 Bc3 Qe5 Rc1 Kh4 Rf1 Bh5 Bd4 Kg4 Re1 Rg8 Ra1 Rg6 Ra3 Rf6 Ra2 Rf1 Rb2 Rh1 Nef4 Bf3 Qb1 Be7 Rf2 Bf8 Qc2 Bd1 Ne2 Nde7#
1n4B1/2Pr3Q/1rQbP3/4NQ1K/6PB/k3rRn1/NR1Pqrp1/1rq2n1b w - - 0 1 illegal: No proof kernel
1rB2R1K/1P3Q2/1rkPqp1B/1b1q1P1n/5n1n/N1b1PRb1/B1N5/bb3Q2 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 cxd5 exd4 Kd2 Kd7 Kd3 a5 Ke4 c5 Kf5 h5 g4 a4 f4 c4 b4 c3 g5 f6 Kg6 a3 e3 d3 b6 d2 b7 a2 b5 h3 f5 h2 b6 c2 Ne2 h4 Nf4 h3 Ba3 c1B Qc2 d1Q Rg1 h1N Bg2 h2 Qb2 Qe7 Qb3 Ra6 Nd3 Qe6 Rf1 Bb2 Nb4 Bd6 Kg7 Ne7 g6 Bg3 Nc2 Bc3 Rf3 Nbc6 b8Q Nb4 Qf4 Nd3 Bb4 Bb7 Nba3 Rb8 Bf1 Bc8 Kh8 Qd2 b7 Rb6 g7 Qd1 Rc1 a1B g8B Qd2 Qfc4 Nf4 Qb5+ Kc7 Bc4 Bd7 Qa6 Bb5 Rd1 Nc8 Bf8 Ne7 Bh6 Qg2 d6+ Kc6 Rc1 Qd2 Rg1 Qdd5 Rg2 Nf2 Qa2 h1B Bb3 Ne4 Rh2 Ba4 Qf1 Bb5 Rh5 Bg2 Rg5 Bh1 Rg7 Bg2 Rf7 Bh1 Rf8 Neg6+ Kg7 Nh4 Kh8 Ng5 Bf7 Nh5 Bg8 Nh3 Bf7 Qe7 Be6 N3f4 Bc8 Qe8 Qb2 Qee6 Ba2 Bg2 Qb3 Bh1 Rf2 Be4 Rf3 Qc4 Ne1 Bb1 Nec2 Qc5 Qbc4 Qe7 Qg8 Qe6 Qf7 Qcd5
K7/p3r1b1/B1Q3b1/1PBq1RPR/1nPq1N1r/n2b1PN1/3b1q2/kb2RQ2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 e5+ Kf3 h5 g4 h3 c4 h2 b4 h4 b6 h3 b7 d3 b5 d4 Ke4 d2 Ne2 d3 Na3 Na6 b8Q Ne7 Nf4 Qd5+ Ke3 e4 Qb7 Ke5 g5 Nc6 f6 Rh4 f7 Bg7 f8R Bf5 Rg8 Nd4 Nc2 Nb4 Ra3 Re8 Qe2 d1B Nh5 d2 Qc6 Bg6 Rd3 Re7 Ne1 Bc2 Ba3 d1Q Bg2 Bb1 Rf8 Qc5 Rg1 h1B Qf1 h2 Ng3 Qg4 Rh8 Qd7 Rh5 Ndc2+ Ke2 e3 Kf3 e2 Rd2 Qc7 Nd3+ Kd4 Nf4+ Kc3 Rd5 e1B Re5 Q7b6 Rf5 Rd7 Ke4 Bd2 Bf3 Kb3 Bg2 Ka2 Bf3 Ka1 Bg2 Rc7 f3 Qf2 Bh3 Bg2 Bg4 h1Q Bh3 Nd3 Kd5 Re7 Bc5 Ndb4+ Kd6 Na3 Bg4 Re4 Kd7 Qd4+ Kc8 Re7 Bh3 Qh2 Bg4 Qa5 Kb8 Qc7+ Ka8 Qcd6 Qd3 Qd7 Re1 Q7d5 Qf1 Bh3 Rfe5 Qhg1 Bc8 Bhf5 Ba6 Bd3 Rf5 Qgf2
n5nn/2kb1P1q/3RK2p/r4R1n/Bb1BP2Q/1Nnn1PQn/5Q1P/3rN3 w - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 gxf5 cxb4 a4 e5 axb5 exd4 Kd2 g5 Kd3 a5 Kc4 d5+ Kb3 Kd7 e4 d3 c4 d2 f6 h6 c5 a4+ Kb2 b3 Kc3 a3 Kd4 g4 Ke5 g3 f3 b2 f7 d4 b6 g2 b7 a2 c6+ Kc7 Nh3 g1N Qe1 d1N Qe3 d3 Nf4 d2 Qa3 Nc3 Bd3 d1N Ng6 Nce2 Ba6 Nf4 Bf1 Nf2 Qe7+ Bd7 Qh4 Na6 Be3 Nh5 Bb5 Nfh3 Ba4 Ne2 Rd1 Nef4 Nd2 b1N Nb3 Bb4 Rd6 Nc3 Bd4 Qb8 Rg1 a1N Rg5 Nc2 Rf5 Ne1 Qf2 Ra7 Nh4 Qf8 Ng2 Qg7+ Rff6 Qh7 Rf5 Nd1 Qh4 Ng6+ Kd5 Nd3 Ne1 Be8 Ke6 Nc3 Rf6 Nb8 Rf4 Ra5 Rf5 Nd7 Qf2 Nb6 Qh4 Na8 Qf2 Rc5 Qh4 Kb6 c7+ Bc6 Rd8 Bb5 c8Q Be8 Rd6+ Bc6 Qf8 Kc7 Qg7 Ra5 Qe5 Ngf6 Qc5 Rd8 Qa7 Ng8 Qc5 Nd5 Qc2 Nc3 Qcf2 Nh8 Rdd5 Bb5 b8Q+ Kc6 Qbf4 Rd7 Qfg4 Kc7 Qgg3+ Ne5 Bc5 Bc6 Rd6 Bb5 Rb6 Rd1 Rd6 Nd3 Bd4 Bd7+
1KQ5/2R2r1r/Nn1q1q2/6nB/3n1P2/P1bbn1r1/1B1PQPpk/1q2R1RN w - - 0 1 legal: proof: g4 a5 c4 h5 b4 axb4 e3 d5 cxd5 hxg4 Bg2 f5 Bf1 f4 exf4 Bf5 Bd3 Be6 Bf1 Bc8 Ke2 Kd7 Ke3 e5 Ke4 b5 h4 c5 a3 g5 h5 b3 d6 Ke6 d7 g3 h6 g4 h7 b4 Bd3 g2 Nc3 b2 Nh3 b1Q Rf1 g1R Ne2 b3 Ng3 b2 Qe2 c4 Qd1 c3 Qc2 Bg7 Qd1 c2 Ne2 g3 Ba6 Nh6 Bb5 Nf5 Ba6 Qf6 d8R Ra7 Qe1 Ne3 Rd3 Nd7 Rb3 Nb6 Rb5 Rf7 Kd3 Kf5 Rc5 Kg4 Ng5 Bf5+ Ne4 Kh3 Rc7 Kh2 Bb5 Qa2 Be8 b1Q Bb2 c1N+ Kc3 Qd3+ Kb4 Qdd6+ Ka5 Nb3+ Ka6 Qb1 Kb7 Nd4 Nc5 Bd3 Na6 e4 Kb8 g2 Nc3 Rg8 Qe2 Rh1 Re1 Bh8 Rg1 Rg3 Re1 Nec4 Rg1 e3 Ne4 Bg7 Qd1 e2 h8Q+ Qh4 Qf8 e1N Qe2 Nef3 Qh8 Ng5 Qg8 Qc2 Rae1 Ne3 Qf8 Qb1 Qg8 Rd7 Bh5 Rf7 Qf8 Nde6 Qc8 Bc3 Bf3 Qh6 Bg4 Qf6 Bh5 Rh3 Ng3 Nd4 Bf3 Rhh7 Bh5 Qde5 Rgf1 Qed6 Qg8 Kh3 Qe8 Kh4 Qd7 Rh3 Nh1 Rg3 Qd8 Kh3 Rg1 Kh2 Qe8 Qc2 Qc8 Qb1
Q4nn1/RqBr2r1/3b1nkr/1bb3pN/P5Pn/NPqP1Q2/1K3RBN/8 w - - 0 1 illegal: No proof kernel
2qrkbQR/2r4B/rN1n3r/2Q1KP2/1Pn1P3/1Q2P2b/q1p2Rq1/3nN1B1 w - - 0 1 illegal: No proof kernel
1qR4r/3N4/1N1b1rq1/3QP1Pp/q1B5/P2bk1Pn/1rB1nrb1/1RKQ2B1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 c4 Ke6 e4 b5 g3 h5 a3 f5 c5 d5 c6 d3 c7 b3 Qe2 d4 Rh4 f4 Rg4 b4 Kd1 b2 Nf3 d2 Nh4 b3 Qf3 Bd6 Qc3 f3 Qc2 f2 Bh3 f1B Qc5 Bg2 Qb5 Ra6 Qe8+ Ne7 Nf3 Nc6 Nc3 b1R Nd5 b2 Nb6 Bb7 Kc2 d1R Be3 Qb8 Qd8 Ng6 Bg1 Rf1 Kd2 d3 c8B+ Kf7 Rh4 Nd4 Bcf5 Nf4 e6+ Kg7 e7 Nde2 e8Q Rf2 Bhg4 Nh3 Qb5 Bf1 Be6 Kg6 Bc4 Bc6 Qd7 Bg2 Qd5 Bb5 Bb3 Bc4 Be6 Bb5 Bc2 Bc4 Ke3 d2 Rf4 d1Q Rf8 Bd3 Rc8 Qe1 Qa4 Qa5 Qab3 Qa4 Kd2 Rbf1 Rd1 b1Q Re1 Ra5 Rd1 Rb5 Ne5+ Kg7 Ned7 Kg6 e5 Rb4 Qbc4 Rb2 Qg4 Rf6 Bg8 R1f4 Qgf3 Kf5 Qf1 Kg4 Rc1 Rf2 Qd1 Qa1 Rb1 Kf5 Qb3 Ke4 Bc4 Qa2 Qb5 Q2b3 Qc5 Qbb5 Qc6+ Qd5 Qb5 Qf7 Qb3 Qg6 Qb5 Nef4+ Kc1 Ke3 Qd5 Ne2+
RKQ3R1/q3Nb2/r4qq1/PPn2n1p/3Bk1Bn/2b4q/QPN4P/2Q3rb w - - 0 1 legal: proof: e4 a5 c4 b5 cxb5 g5 f4 gxf4 Qa4 d5 Qxa5 dxe4 Qa4 Nf6 Qa7 Ng8 Ke2 Kd7 a4 Ke6 g4 Kd5 d4 f5 a5 e5 g5 c5 g6 h5 g7 e3 Kd3 c4+ Kc3 f3 Ra2 f4 Qf7+ Be6 Qf6 f2 Ra1 e4 Qh4 f3 Ra3 e2 Bh3 f1B Bd2 e1Q Qf2 e3 Ne2 Bg2 Ra4 Qg1 Bg4 Na6 Qe1 f2 Na3 f1Q Qc1 Ke4 d5 Nh6 g8Q Bg7+ Nd4 e2 d6 e1N d7 Bf7 Be3 Nf3 Nc2 Nc5 Kb4 c3 Nc6 Ra6 Bd4 Nf5 Ne7 N3h4 Ra3 Qc7 d8Q Qd7 Qc8 Rhh6 Ra1 Rhg6 Ra3 Qgf2 Rg1 Bh1 Ra1 Qh3 Rg3 Be8 Qa2 Bf7 Rf3 Nd6 Rf6 Ndf5 Rb6 Qf4 Rb8 Qg5 Ra8 Qf6 Qd2 Rg5 Rg1 Qg6 Qc1 Be5 Bd1 Rg3 Bg4 Bg7 Rf1 Rg1 Rf2 Qf6 Rg2 Bh6 Ne3 c2 N3d5 Ng7 Bf3+ Kd3 Qca1 c1Q Ne3 Qc2 Qc1 Nb7 Rg4 Qcg2 Nc2 Ngf5 Rg8 Qgg6 Be2+ Ke4 Bg4 Nbd6 Kc5 Bd2 Qf1 Bc3 Qc1 Ra7 Kb6 Nb7+ Nc6 Qd5 Kc7 Ra6 Ne7 Nc5 Kb8 Qdc6 Qaa1 Qd7 Qa2 Qa7+
1B2Q3/N2R2Rb/1q3r1P/nB3NrQ/1b1NKb1p/4n1P1/2PP2k1/1nq2r1n w - - 0 1 illegal: No proof kernel
1RNb4/N2r1rn1/2PN4/3qQ1R1/1PQp1P1B/2br1K2/b1P2nnq/nB3k2 w - - 0 1 illegal: No possible last move
1R3NK1/1q2q3/rPBn1P1B/r1bpQQ1B/P6r/n4Rn1/Pb3r1k/1N5b w - - 0 1 illegal: No proof kernel
2rQ1Q1B/4R1nb/pNq3Qr/8/1r2B2P/P7/K1b1PqPk/r1NbR1qn w - - 0 1 illegal: No proof kernel forced: bxLB
7B/rB2n1Qp/1r1r2qP/k1bP1R2/bqP1Pb1K/1n1N4/1Br2N2/2Q3Rq w - - 0 1 illegal: No proof kernel
1q1Bk1b1/r1rqrn1p/3R1P1Q/1QN2q2/8/N2nPK2/P2PBbRb/6Nb w - - 0 1 illegal: No proof kernel
kb2n1q1/rN1BNBP1/Qp2KQ2/1PP1R1b1/1b2Qn2/4P1qb/3R1r2/2n3q1 w - - 0 1 illegal: No possible last move
b4rk1/3q2pN/P3P1n1/Pb1Qb1r1/1K3R1q/Q4BB1/n1Prb2N/N1n4R w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 bxa5 exf4 Kd2 d5 a4 b5 e4 f5 h4 Kf7 e5 f3 h6 b4 a6 f4 a5 f2 h7 d3 h5 b3 Kc3 d2 h6 d4+ Kc4 d3 Rh4 f3 Rg4 b2 Na3 b1N Qe2 d1R Qe3 d2 Ra2 Bb7 Be2 f1B Ra1 f2 Nf3 Qh4 Nb5 Ne7 Qa3 Nbc6 Nbd4 Nc3 Nb3 Ng6 Nh2 Bd6 e6+ Kf8 Rb1 Nd4 Na1 Nb3 Bb2 Rb8 Re4 Rg8 h8N Nc1 h7 Ba8 Nf7 Rb5 h8Q Rg5 Qh5 Rh8 Qf3 Kg8 Rf4 Bc7 Qd3 Be5 Bf3 Be2 Kb4 f1B Qd5 Bb5 Qa4 Bfe2 Qa3 Rg2 Ng5 Rdg1 Qdb3 d1Q Nh7 Qd7 Qd5 Rg5 Rd4 Rd1 Rf4 Ne4 Bd4 Nc3 Bf2 Rd2 Bg3 Rf5 Ng5 Rh5 Nh7 Rhg5 Qe4 Rf8 Qd5 Nb3 Re1 Nc1 Rh1 N3a2+
r1r5/3RQP2/nkB3pb/1NRbq3/1n1q1B2/1rN2PPr/1nQbP1K1/1B6 w - - 0 1 illegal: No proof kernel
R2b4/n3KP2/1P2Qr1R/1BBNP3/pq6/4r2q/1nqbQNkP/3nQ1qb w - - 0 1 illegal: No proof kernel
2n1Qq2/5pn1/1kP2bP1/rr2Qn1K/b1nq4/3RPR2/2N1BPB1/2Nq1B1b w - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 e5 b4 exd4 Ba3 c5 bxc5 Nf6 Bb4 axb4 Rh6 Ng8 Rh2 Be7 Rh1 Bf8 g4 d5 a4 Kd7 c4 Kc6 a5 h5 g6 b5 a6 d3 a7 b3 g5 b2 g7 d4 g6 b4 Ra4 h4 Na3 b1N Qc1 h3 Qh6 d2+ Kd1 b3 Nf3 h2 Nc2 b2 Ng5 Na6 Ra3 Be7 Ne4 Nc7 Qg5 Qf8 Qe5 Bf6 Rd3 Na3 Ng3 Ne7 g8Q Ne6 e3 b1B Ke2 Bb7 Kf3 d1Q+ Be2 Nc8 Kg4 Rh5 Rg1 Rb8 a8B h1N Rg2 Rf5 Rh2 Ba2 Rh3 Bb3 Qh8 Qd2 Bf1 Qb4 Ne2 Ba4 Rf3 Ng3 Nc1 Rh5 Qg8 Nf5 Be2 Qb6 Bf1 Qbd8 Be2 Qdd6 Qh8 Kc7 c6 Kb6 c7 Be4 Bd5 Ra8 Qg8 Ra5 c5+ Ka7 c6 Kb6 Rf4 Bh1 Bg2 Nc4 Rf3 Qc5 Rd2 d3 Bgf1 Qg7 Qe8 Qgf8 Rd1 d2 Bg2 Nce7 c8B Rb5 Ba6 Nc8 Re1 d1Q Bef1 Qe2 Rd1 Ra5 Rd8 Qd1 Rd3 Qd4+ Qf4 Rh3 Bb5 Rg3+ Kh5 Rg4 Qe5 Re4 Qg3 Re5 Be2 Rd5 Qe5 Rc5 Ba6 Rcb5 Bef1 Rb4 Ra3 Nb2 Bad3 Rbb5 Bde2 Nc4 Rd3 Neg7#
3Q1Q1b/K2BPqn1/4r1qR/3r2nN/P1br1n1R/1k1pn1P1/1Nq2BP1/4Q3 w - - 0 1 legal: proof: f4 a5 d4 c5 b4 cxd4 Ba3 axb4 Bc1 e5 fxe5 g5 Be3 g4 Bc1 g3 hxg3 Ra5 Nh3 Ra6 Ng1 Ra8 Kf2 Ke7 a4 Ke6 c4 f5 e4 b5 c5 d5 c6 h5 c7 d3 Ke3 f4+ Kd4 h4 Ba3 b3 Qh5 h3 Be7 b4 Kc5 b2 Kb6 d4 Bc5 b3 Qe8+ Ne7 Rh2 d2 Na3 b1Q Qh5 d1R Bb4 b2 Nb5 f3 Bc5 f2 Ra2 Qe8 Qf3 Bg7 Qe3 Nbc6 Bd6 Nb4 Na3 Nd3 Qf3 Qf7 Bb4 Nf5 Ra1 Rh4 Be1 Qc2 Nc4 b1Q+ Nb2 Nf4 Bb5 f1N Bf2 N1e3 Ne2 Bh8 Rh1 Rb8+ Ka7 h2 Be8 Bd7 c8Q Rb6 Qa8 Ng7 Qd8 Nc4 Qc3 Ne3 Qe1 Rd3 Qc7 Bb5 Bd7+ Ke7 e6 Bc4 Qc8 Kd6 e5+ Kd5 e7 Re6 e8Q Rd2 Qed8 Qcg6 Qcc7 Qbc2 Qcb8 Kc5 Qbc8+ Kb4 Qf8+ Kb3 Qcd8 Nh3 Nf4 Ng5 Nh5 Rg4 Rg1 h1N Rc1 d3 Rd1 Re2 Ra1 Rd6 e6 Rgd4 e7 R6d5 Rf1 Ng4 Rd1 Re6 Rc1 Qb1 Rc2 Ne3 Re2 Qc2 Rg1 Nef5 Re4 Ne3 Rh4 Nef5 Be3 Nf2 Rgh1 Nfh3 Bf2 Ne3 Nf6 Ngf5 Rh6 Nf4 Nh5 Ng7 Rh3 Qe4 Rh4 Qeg6
2rb3b/1b1KP1rn/1P1R4/RN1PQ1n1/5NqB/Q3q1QP/2pk2n1/1r1n3B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 c5 e4 f5 b6 a5 b5 g5 b7 a4 b6 c4 h3 a3 Rh2 c3 Qe1 g3+ Kf3 g2 Nd2 a2 Qe3 g4+ Kf2 f3 Kg3 f2 Kf4 c2 Rh1 g3 Rb1 a1B Rh2 Nh6 Qd3 Rh7 Qe3 Be7 Bb5 f1N Ba6 Nf7 Ndf3 Rg7 Rb5 Qe8 Ne2 g1Q Ra5 g2 Rh1 Qa4 Qa3+ Qb4 Be3 Bd8 Bf2 Ng5 Bh4 Nd7 Rh2 Nf6 b8Q+ Rc7 Bb5 Bb7 Bc6 Ne3 Rh1 Qf2 Rd1 g1R Rd3 Rb1 e5+ Ke7 e6 Kd6 Rd2 Nd1 e7 Nfh7 Nc3 Qe2 Ne1 Bb2 Nd3 Qe4+ Kg3 f4+ Kg4 f3+ Nf4 Qe3 Kf5 f2 Rd3 f1N Rd2 Nh2 Rd3 Nhf3 Rd2 Ba6 Bb7 Ne1 Nb5+ Kd7 d6 Ng2 Bf3 Bb7 Be4 Rc8 Rd3 Ne1 Bh1 Ng2 Rd2 Kc6 d7 Bc3 Qe5 Ba1 d5+ Kc5 Rf2 Kc4 Re2 Bc7 d8Q Bb2 Qg8 Bd8 Qee6 Bh8 Qe5 Rc6 Rf2 Rg6 Rf1 Rg7 Rf3 Ne4 Ke6 Rc8 Kd7 Neg5 Rg3 Ne6 Rg6 Neg5 Qaa1 Kb3 Rd6 Qbd4 Qa4+ Kb2 Qb4+ Kc1 Qa3+ Kd2 Qe8 Qde4 Qg6 Ne6 Qg3 Neg5 Nh5 Q4f3 Nf4 Qg4+
1r1B2r1/2RP2Q1/Bp1K2PP/4nk2/3Q1qqR/bq4nn/r1PqN1N1/2B4b w - - 0 1 illegal: No proof kernel
1qbn3b/1R1P1P1r/q7/q2bpR2/PN6/1r2n3/NB2PQqn/2KR1QBk w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 Bh3 d5 cxd5 f5 gxf5 Kf7 Bg4 hxg4 Qb3 Ke8 Qa4+ Kf7 Qd1 Ke8 a4 Kf7 d4 Kf6 Kd2 Kg5 f4+ Kh4 h3 Kg3 f6 Kg2 d6 e5 d7 b5 f7 g5 d5 c5 f5 b3 h4 g3 h5 g4 h6 c4 d6 b2 f6 c3+ Kc2 b4 h7 b3+ Kd3 c2 Kd2 Nc6 Rh3 Bg7 f8R Qa5+ Nc3 b1Q d8B b2 f7 Nh6 d7 Nf5 Rh1 Rb8 Qe1 Rb3 Nh3 Ne3 Bf6 Nd8 Rf1 Kh2 Qf2+ g2 Re8 g3 Bh4 Qa6 Na2 Bf6 Qf3 g1Q Nf4 g2 Nd3 Kh1 Ndb4 Bg7 Rd1 Qf1 Qf2 g1N Re6 Qg2 Rb6 Qa5 Rb7 Bf6 Qf1 Qa6 Bf2 Qa5 Ke1 Bg7 Bd2 c1Q Bc3 Qbg6 Bd4 b1B Bb2 Qcc7 Kd2 Qb8 Kc1 Be4 Rb1 Bd5 Ra1 Rg8 h8Q+ Qh6 Qh7 Rh8 Qf5 Rh7 Qf6 Bh8 Qf3 Kh2 Qf6 Nf3 Bg1+ Kh1 Qf4 Nd2 Q4f2 Qha6 Re1 Be6 Qf3 Ne4 Kb1 Qc4 Rc1 Ng4 Rc3 Nef6 Q3f2 Nd5 Rf3 Qca6 Rf5 Nh2 Kc2 Ne3+ Kd2 Qaa7 Rd1 Bd5 Kc1 Q7a6
1q1b3Q/Nk1p4/2R2qb1/1b1n2nP/2r5/1r2BQbP/1PqP2R1/Nr1Q2KB w - - 0 1 illegal: No proof kernel forced: bxDB
4b2q/3prRPq/P2K1bRB/1R1q2bk/4BQ1b/5n2/n1PNrQP1/Nr6 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Ke2 Kf7 Ke3 Kg6 Kd4 h5 Ke5 b5 a4 h4 f4 b3 c6 e3 a5 e2 a6 e1B c7 b4 Kd5 e5 Nh3 b2 Be3 e4 Bc1 b3 Ra5 e3 Qf3 e2 Bd2 Nh6 Qd3+ Kh5 g6 Ng4 g7 Be7 f5 Nh2 f6 Nf3 f7 Nc6 f8R Bg5 Rf6 Nb4+ Kc5 Na2 Ng1 h3 Bb4 h2 Qc4 Beh4 Rf5 e1B Ne2 Bb7 c8Q Be4 Kd6 Re8 Nd2 b1Q Rab5 b2 Nc1 Re7 Ncb3 Qh8 Bd3 Qd1 Qf8 b1R Rf7 Bg6 Qf4 Rae8 Na1 Bef2 Be4 Bd4 Ba3 Bf6 Bc1 Qh7 Re1 h1Q Re3 Re5 Rc3 R8e7 Rc6 Qh2 Qd8 Qh8 Qb6 Qh3 Qf2 Qf5 Rf8 Be8 Rf7 Qfh7 Rc3 Nd4 Rg3 Nf3 Rg4 Bh6 Rg6 Bh6g5 Bf5 Re3 Be4 Re2 Q4g3 Qf1 Nc4 Qe1 Qh2 Qc3 Bf4 Qb3 Nd2 Qc4 Be5 Be3 Bf4+ Re5 Bg5 Re7 Bh6+ Beg5 Qf4 Qd5+
krr5/NqPPbK2/2p4N/B2B2b1/N1P3q1/3P2rR/Qn1bq1q1/n4QR1 w - - 0 1 illegal: No proof kernel
1b2RB1q/1P1Q1n1K/1BrQ1NNb/3R4/NrP2p2/2nqnP2/1rb1nP2/3k4 w - - 0 1 illegal: No possible last move
5nN1/1P1pb3/n1Qr2Qn/3P1B1P/2b1Rn1r/1kq1P1N1/4KbR1/r1B1Q1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 h4 Ke7 d4 Ke6 c4 g5 c6 a5 c5 Kd5 e3 f5 c7 f3 c6 g3 b6 f2+ Ke2 Kc4 d5 g2 Bb2 a4 Qd4+ Kb3 Qc5 f4 Qe7 g4 Be5 a3 Qc5 f3+ Kd3 a2 Bg3 Na6 Rh2 Qf6 Qa5 Nh6 Bd6 g3 Bf4 Be7 Ne2 g1N Rg2 Nh3 Bd6 Ng5 Qe1 Ne6 Ba3 Nf8 Bc1 Qg7 Kd2 Qc3+ Kd1 Bb7 c8Q Rh7 c7 Bc6 b7 Bb5 Rh2 g2 Ng3 g1B Qe8 Bc4 Bd3 f1N c8Q f2 Ke2 Nd2 Rg2 Nf3 Qg6 Ne5 Qc5 f1R Qcc6 Bf2 h5 Rh1 Qf5 Rh4 Nd2+ Kb4 Nde4 Kb3 Qfg6 Rf7 Qg5 Rf6 Qg6 Rd6 Nf6 Ra7 Ng8 Ra8 Kd1 Ra7 Bf5 Nd3 Bd2 Ra8 Rc1 a1Q Ke2 Qa2 Ra1 Qb1 Ra4 Qba1 Qh1 Qg1 Bc1 Bb5 Re4 Bc4 Qf7 Nab4 Qg6 Ra1 Qc8 Na6 Qc6 Qh2 Qf1 Qg1 Qe1 Nf4+
1K1Nk3/bpQ1qRQ1/3rr1NP/3bBn2/3qR1nP/n2r3B/1P1P2Nq/q7 w - - 0 1 illegal: No proof kernel forced: bxDB
2N3R1/P2P1Kb1/pnqqb3/2B1P2P/B1Q2r2/Q5N1/4rnR1/nkrQn2b w - - 0 1 illegal: No proof kernel
1BQ5/p2qnPNn/K3BQ2/1P2PPN1/r2q1qb1/1N4R1/qb3k2/1Rbr3n w - - 0 1 illegal: No possible last move, all moves rejected
3Rrbr1/n1B1n3/1P1NP2P/1b1pb3/Qr6/2k1b3/q1bbP3/1BRKNQN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 c4 Ke7 h4 Ke6 b4 f5 h5 d5 b6 a5 b5 g5 c5 g3 b7 g2 h6 d3 c6 d2+ Kf2 f4 c7 f3 b6 g4 Bb2 g3+ Ke3 a4 Rh3 f2 Nc3 a3 Qc1 d1B Kd2 a2 Rb1 a1B Nb5 Bc2 Rh5 Ne7 Rh4 Rg8 Rf4 Nbc6 b8Q Ba6 c8N Na7 Na3 Bb5 Nd6 Qc8 Qb7 Qc4 Qa6 Re8 Qa4 Qa2 Bc3 Bb2 Rc4 Ba1 Rc8 Bb2 Rd8 Ba1 Nh3 g1B Bg2 f1R Be4 Rf4 Qf1 g2 Rc1 Be3+ Ke1 Rh4 Ng1 Bg5 Bh7 Rb4 Bd2 Bd4 Bf4 Be3 Nb1 Bd4 Nd2 Ba1 Ndf3 Bb2 Nh3 g1B Bg3 B1e3 Nhg1 Bd1 Bb1 Bc2 Ne4 Kf5 e6 Bbf6 Bb8 Be5 Nd6+ Kf4 Nc4 Ke4 Bc7 Bd3 Kd1 Bgf4 Ne1 Kd4 Bc2 Kc3 Nd6 Bf5 Qg2 Bd2 Qf1 Bfe3 Bb1+ Bc2+
2Q1nRr1/6N1/3b4/PKNP1Br1/B1b1Pq1p/1Q1b1R1b/n3b2P/3nkNn1 w - - 0 1 illegal: No possible last move
7k/4PP1n/1BNn2qP/3B1nqR/2r1PNnp/1K1nnQ1r/2N5/bbQ4R w - - 0 1 illegal: No proof kernel
1nR2K2/1PrQrPpR/3P2B1/qrQr2k1/2N5/3r1q2/3NbBP1/1nb3Br w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Qd6 Bd3 Qh6 Bf1 Qxh2 Ke2 Kf7 Ke3 Kf6 Kd4 a5 Kc5 e5+ d6 h5 d4 e3 b4 e4 f4 a4 b6 e2 b7 e1R d5 h4 f5 e3 b5 a3 b6 a2 Bd3 e2 Nh3 Rh5 Qc2 Ra3 Bh6 Rd1 Nf4 e1R Qc4 h3 Qc1 Ne7 d7 Qg3 d8Q h2 Qd7 Qf3 Nd2 c6 Kd6 c5 Ng6 c4 Bb1 c3 Ne5 c2 Be3 Rd3 Bg1 Kg5 f6 Re2 Qa3 c1R f7 Rc7 Nec4 Re5 Bc2 Rde1 Rc1 a1Q Qc5 Qa5 Qdc6 Bg4 Qd7 Qf1 Bf2 Be2 Bg1 Qf3 Bf2 Rb3 Bg6 Rd3 Rc3 Rb1 Rc2 Rb5 Bg1 Nbc6 b8B Re4 Ba7 Nb8 Bf2 Re5 Rd1 h1R b7 Re1 Bb6 Rf5 Ke6 Rhh1 d6 Nd5 Rb1 Be7 Bg1 Bf6 Rcc1 Bd4 Rb3 Nc3 Ke7 Nb1 Kf8 Bf2 Ne3 Qh3 Qe5 Rcc5 Rb4 Rc6 Ndf1 Bd1 Rh4 Qf3 Rh7 Rc2 Qc3 Rfd5 Qcc7 Bg3 Qcc8 Be5 Nd2 Bb2 Qcc7 Rc6 Rc5 Bc1 Nec4 Re7 Ba7 Ra6 Rc6 Be2 Baf2 Rab6 Qcc8 Rbc5 Qcc7 Rb2 Qb6 Rbb3 Rc8 Rc7 Qc5 Rb5
1N4b1/n4PnR/1Q4rr/1PQBB2b/b4pr1/K1NRPN2/P4rkn/b6q w - - 0 1 illegal: No proof kernel
N1Kn1n1r/1Qr3n1/n2P3B/1b1rPk2/1R2p1rQ/B4q2/P2PB3/1NbR2q1 w - - 0 1 illegal: No proof kernel
Q3q3/bn2RR2/QB1P1B1p/4b2N/3nnPq1/3PKB2/rb1Pb3/1k1Nrn2 w - - 0 1 illegal: No proof kernel
2r1n1Nb/1Q1Bnn2/1RP2bq1/pK1b2B1/3BkP1r/P5P1/1N1b1qn1/2R3Q1 w - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 Kf7 d4 Kf6 f4 Kf5 c6 a5 d6 b5 g3 e5 d5 h5 a3 h3 d7 e3 Kd3 e2 d6 e1B Be3 b4 Kc4 b3 Bd2 h2 Nf3 e4 Ng5 e3 Ne6 b2 Bc1 e2 Nc5 h4 Qa4 h3 Qb3 Bg7 Qa4 Bf6 Qb3 Ne7 Qf3 Na6 Rg1 h1N Qe3 h2 Qf3 Bd2 Nd3 e1B Ra2 Qb6 d8Q Nf2 d7 h1N Qg2 Ng4 Nc3 b1Q Nb2 Rh4 Nd5 Nh6 Qc7 Qf2 d8B Be6 Qb7 Rc8 Kb5 Nf7 Be2 Bh8 Nf6 Bd5 Ng8 Bf6 Qh2 Ke4 Bg4 Bh8 Bd7 Nc7+ Ka4 Ne8 Kb5 Bdc3 Be3 Bcf6 Bd4 Bd2 Rc1 Qg1 Bg4 Nf2 Bd7 Nd3 Qf2 Qg2 Qg1 Qf2 Ra1 Qc2 Rab1 Ne1 B8b6 Ng2 Bd8 Nf5 Be7 Be5 Bf6 Ne7 Bg5 Bef6 Na4 Qb3+ Kc5 Qd3 Rb6 Kf3 Nb2 Qg6 Kb5 Ke4
5rqN/2B1P3/1Kbb4/1r1BQRQ1/P3Q1n1/qpP1q2q/nkP2n2/4RnN1 w - - 0 1 legal: proof: g4 h5 f4 e5 fxe5 hxg4 b4 c5 b5 c4 b6 c3 dxc3 axb6 Nf3 b5 Ng1 b4 Kd2 g5 Kd3 f5 Kc4 d5+ Kb5 Kd7 h4 f4 e4 d4 a3 g3 h5 g2 h6 b3 h7 g4 Rh5 f3 Bb2 f2 Bd3 f1N Qe1 g3 Nd2 Qe7 Qe2 Nf6 Ndf3 Ra5+ Kb6 Ng4 Re1 Rc5 Bb5+ Nc6 Rh3 d3 Rh2 d2 Ng5 d1N Bc4 Nb4 N1h3 g1Q Bf7 g2 Rh1 Qe3 Rh2 g1Q Bc1 b2 Qg2 b1Q Bd5 Ndf2 e6+ Kd6 Bd2 Bd7 a4 Ke5 Bc1 Bc6 Rh1 Qh2 Ng1 Qa2 Nf7+ Kf4 e5 Qh3 Rh2 Qe8 e7 Qa3 e6 Na2 Rh1 Qb8 e8Q Bd6 e7 Rf8 Nh8 Qc8 Qg6 Qe6 Qd3 Qg8 Qe2 Qg3 Rh5 Qh3 Ka7 b5 Kb6 b4 Qb5 b3 Qe4+ Kg3 Rf5 Nh1 Nf3 Kf2 Qa5 Qe2 Bf4 Qe3 Rc1 Ke2 Ng1+ Kd2 Re1 Bb8 Bc7 Nhf2 Re2+ Kc1 Re1+ Kb2 Qb5 Rc4+ Qc5 Qd3 Qce3 Rc5 Qg5 Qdg3 Nf7 Qd3 h8Q Qd4 Qhe5 Qde3 Bd8 Bd6 Nh8 Rf7 Bc7 Rf6 Ne2 Rf8 Ng1 Rb5+
1K2B1RN/3PrP1Q/1r1q3n/5QB1/N1p2Pb1/bb5n/k2rRP2/rb3qR1 w - - 0 1 illegal: No possible last move
2nBK1q1/2Rr4/Rn2p1BQ/n2PN3/r2Q4/r1b1P1nq/1nPPn3/4k1NN w - - 0 1 illegal: No proof kernel
KN2n1Bk/b2nQ1bP/R1R4b/n1Bp2b1/N7/2PP1P2/2RQb1qr/2qn4 w - - 0 1 legal: proof: e4 c5 g4 f5 b4 fxe4 Na3 b5 Nb1 h5 a3 hxg4 bxc5 a5 a4 b4 Ba3 Ra6 Bb2 Rb6 Bc1 Rb5 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Ke2 Kf7 Ke3 e5 h4 d5 f3 g5 b6 Kg7 h5 a4 c6 g3 c7 g4 b7 b3 Bh3 b2 Rh2 a3 Re2 g2 Ra2 g3 Nc3 b1N Re1 Nd7 b8R Ba6 c8Q Be2 d3 Qc7 Bf5 Ngf6 Qa6 Ne8 Rab2 a2 Qe6 a1N R8b6 Nb3 Bh7 Na5 Na4 Nc3 Bg8 Rh6 Rd6 Kh8 Ra6 Bg7 Qe7 Rh7 h6 Qc6 Nh3 g1Q+ Nf2 g2 Qd2 Qh1 Rbb6 g1B Ba3 Qg2 Rc1 Qc7 Rc6 Qc8 Qe1 Qc7 Bc5 Nd1+ Kd2 Qc8 Ng4 Bf2 Nf6 Bd4 Bb4 Ba7 Ba3 Qc7 c3 e3+ Kc2 e4 Bc5 Qcg3 Qd2 Qe1 Kb1 Qeh1 Ka2 Qe1 Qb2 Qd2 Rc2 Qc1 Ka3 Bf1 Kb4 e2 Kb5 e1B Nh5 e3 Nf6 e2 Qa2 Bd2 Qb2 Nf8 Nd7 e1B Nb8 Nd7 Qa2 Bh4 Qb2 Be2 Qa2 Be5 Qb2 Rg7 h7 Bh6 Qa2 B4g5 Qb2 Qa1 Qc1 Rg6 Qd2 Re6 Rab6 Qc1 Ka6 Nb3 Kb7 Beg7 Ka8 Na5 Ra6 Re4 Qf8 Rh4 Qe7 Rh2
2bnK3/4nr2/2BR4/PnqQp2P/1bq3N1/2RPq1B1/1QbkPq2/n1R1N3 w - - 0 1 legal: proof: f4 d5 g4 h5 b4 hxg4 c4 a5 cxd5 axb4 f5 e5 Nf3 Ra6 Ng1 Re6 fxe6 b5 Kf2 Ke7 Kg3 Kf6 a4 Kg5 e7 c5 e8Q f5 d6 b3 d7 b2 h3 c4 d3+ f4+ Kh2 g3+ Kg2 c3 Kf3 b4 Ke4 c2 Kd5 b3 Ke6 g2 Kf7 Bb4 a5 Nc6 Be3 c1N Bd4 f3 h4+ Kf4 h5 g5 Qc2 f2 Na3 b1N Ba7 g4 Bd4 g3 Nb5 b2 Ra3 Rh7+ Kg6 Qh4 d8R Nb3 Nc3 Na1 Nf3 g1Q Qd7 g2 Nd1 Nc3 Ne1 b1B Qd5 Nb5 Rc3 Rf7 Qb2 Bc2 Rd6 Nd8 Ne3 Ne7+ Kh6 Qg3 Ng4 Qe3 Ba7 Qh2 Bc5 g1Q Bg2 f1Q Bb6 Qeg3 Bf2 Qe3 Bh4 Qc5 Bf3 Qhf2 Bg3+ Kf5 Bg2 Qfd4 Bf3 Qff2 Bg2 Qdc4 Bf3 Rf8 Kg7 Qfe3 Bg2 Qgf2 Be4+ Kg5 Bf3 Rf4 Rg1 Kf5 Kf8 Kg5+ Ke8 Rf7 Ng2 Kf5 Rc1 Kg5 Ne1 Kf5 Bh4 Kf4 Bg3+ Kg5 Bh1 Qef4 Qe6 Qfe4 Bh4+ Kf4 Bf3 Qed4 Bc6 Qe4 Qd5 Qef3 Nh2 Ke3 Ng4+ Kd2 Bg3 Q3e3
b1N4B/2R4P/kq1Q2pN/Pn3KP1/4n3/b2RqBrp/4Pn2/b1qrB1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
3N1R2/3bq2P/P2r3B/1q1QP3/p1r1bKP1/N3p3/Rnn2kBn/1Q2bN1r w - - 0 1 illegal: No proof kernel
q2r1NR1/6P1/1N3k2/2PB1n1B/bBp1Q1K1/qp1br1P1/1b1RP3/r2nQq2 w - - 0 1 illegal: No proof kernel
2B4N/2P2rnR/2rN2R1/p1bBQ1Kn/P1Pq2Bn/kpQ3bP/4r3/q4b2 w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 Ke7 Ke3 d5 Kf4 b5 c4 a5 a4 g5+ Ke3 d4+ Ke4 b4 f4 d3 f5 b3 e6 d2 c6 Kd6 c7 Kc5 e7 Kb4 e8B g2 f6 g3 f7 g4 Kf4 Nf6 e4 Ra6 e5 Bc5 f8Q Nc6 e6 Qd4+ Kg5 Nd8 e7 Rc6 Bd7 Rh7 e8B Nh5 Qf6 Rf7 Qdf3 d1R Nh3 g1B Nf4 g2 Qe5 g3 Nd2 Re1 Ng6 Bf2 Be2 g1N Nh8 g2 Ne4 Bg3 Nd6 Bb7 Rb1 Ka3 Qc3 Ba8 Bf3 Re2 Bdg4 Bb7 Bed7 Ne6+ Kg6 Neg7 Kg5 Bc8 Bd5 Bb7 Bc8 Nf3+ Kh6 Nh4 Kg5 g1Q Rf1 Qd3 Rf6 Qdd4 Rh6 Qb1 h3 Qa1 Rh7 Rb6 Rg1 Bc6 Bde6 Bg2 Bd5 Ra6 Rf1 Rc6 Rf6 Bf1 Re6 Be1 Rg6 Bg3
2b1qB1Q/pN1r3B/2n1qP1Q/2PN3b/Rb3Rq1/6B1/K1pPPn2/1r1nk3 w - - 0 1 illegal: No proof kernel
4Nr2/N3QB2/R1n2p1P/B1bpbQK1/3P2n1/4Pb1R/1N1Pk1br/1q3nb1 w - - 0 1 illegal: No possible last move, all moves rejected
k3q2K/n2rPR2/1Pnn3P/Q4P1p/2B3nb/Qrb2pBN/4N3/2NR1n1b w - - 0 1 illegal: No possible last move
B3b3/1R3nNn/2b1rPk1/1rQR1p1b/K1p2PrP/nqP2R1N/4Q3/3bB3 w - - 0 1 illegal: No possible last move, all moves rejected
B4RKn/1b1BQ2R/2p3pb/2r1rN2/N3bP2/2P2n1q/P1r1PkB1/Q2n2r1 w - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 Kf7 Kc3 Kg6 Kc4 Kh5 Kd5 Kh4 f4 b5 e6 b4 a6 b3 a7 c6+ Ke5 d5 c3 g6 h3 g2 e7 Kg3 e8B b2 h4 d4 h5 d3 h6 d2 h7 Qd7 Rh5 Bh6 Rg5 Kf2 Na3 b1B Rf5 g3 Rf8 Be4 Nf3 g1R Nd4 g2 Nc4 Bb7 Nb2 Qh3 Nf5 Nd7+ Ke6 Ne5 Na4 Nf3 Bd7 Re8+ Kf7 Re5 a8B Rh1 Qc1 g1R Bg2 d1N Qa3 Bg5 Kg7 Nh6 Qe7 Nf7 Rb1 Bc8 Rb7 Bh6+ Kf6 Rc5 Ra7 Rg8 h8Q Bb7 Ke6 Ne3 Qd4 Nh8 Qd1 Rg7 Qa1 Nd1 Qd8 Re7+ Kf6 Ree5 Qe7 Bg5+ Kg7 Bh6+ Kg8 Nb2 Rf7 Rc1 Rh7 Nd1 Ra6 Rc2 Rb6 Ba6 Rb8 Rg1 Rf8 Bb7
N3r1nQ/2n3KP/NrnQ2P1/2BBbrk1/1R4PR/1Qp2qb1/1P2bp1r/8 w - - 0 1 illegal: No proof kernel
4r3/1Q2b1P1/BQP1n2r/p1BN2Pr/3np2q/1brR3P/1k1N1Qn1/R1b2K2 w - - 0 1 illegal: No proof kernel
Q1b1k1Bn/n3prP1/n1P1R3/4R3/1r1pP1N1/1qnr4/2P2Q1b/Qb1NKB2 w - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 f4 axb4 fxg5 h6 g6 Ra7 g7 Ra8 g4 Nf6 g5 Ng8 g6 Qb6 Bf4 Qd8 Bg5 hxg5 e4 f5 h4 b5 a4 d5 a5 f4 c6 g4 a6 g3 a7 f3 h5 d4 h6 f2+ Kd2 b3 h7 g2 Qe2 b2 Qd3 b4 Qh3 b3 Be2 f1R Bc4 Rf7 Qe3 Qd5 Qc3 Nh6 g8B Na6 Ra2 Bg7 Bd3 Be5 g7 Bh2 Nh3 g1N Ra5 Ne2 Nf2 Rb8 a8Q Rb4 Ke1 Qb5 Qd2 Nc3 Ng4 Qc4 Rg5 Nb5 Re5 Na7 Nc3 b1N Qf2 b2 Nd1 Nc3 Bf1 b1B Re6 Qb3 Re5 Bg3 Rhh5 Bh2 Re6 Nf5 Rg5 Nh4 Rge5 Ng6 Qb8 Rf3 Qc7 Rh3 Qa5 Rd3 Qa1 Kd8 Bf7 Rf8 Bg8 Ke8 h8Q Rf7 Qh6 Nh8 Qc1 Nc7 Qca3 Bg3 Qa6 Bh2 Qb7 Na6 Qb8 Rf6 Qa8 Rf7
3rqn1N/3pnrR1/1B1Pb1rB/2BP4/4KN1n/b1kp1P2/4P1Q1/1R1Qr1b1 w - - 0 1 illegal: No proof kernel
q4B1r/p3KPRn/r4R1N/1N2p1PQ/1Nb5/rn1BPb2/2b1nQP1/2kn4 w - - 0 1 illegal: No proof kernel
Q4Nbb/5Bb1/B1RK2p1/P1P2rbp/3bq2r/Q1QP2RN/3nk2P/n4q2 w - - 0 1 illegal: No proof kernel
2b1k3/2q2b2/QQ2r2r/1nB1N3/p2r1rPP/b1qB2pN/1PR2nPR/2KR4 w - - 0 1 illegal: No proof kernel
NK1Nb3/2R2q2/b1rn1b1r/1P4Pp/p4P2/P1B2Q2/kN1b3R/1q1Qn1rB w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 b6 c4 g4 c5 bxc5 h3 cxd4 hxg4 d3 g5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Kf7 Ke3 c5 Ke4 d5+ Ke5 a5 b4 h5 g4 d2 f4 d4 a3 c4 f6 c3 Rh3 c2 Nf3 d3 Bg2 Nd7+ Kd5 e5 Kc6 Ke6 g6 e4 f7 e3 g7 e2 g5 e1Q Rh1 Rh6 Rh3 Ne7+ Kb5 Kd5 g8N Nc5 Bb2 c1B Bc3 Bg7 f8Q Raa6 Qe8 Bf6 Bh1 Rc6 Rh2 Nf5 Qee2 Qe7 Qf1 Q1e4 Nd4 Qf7 Qff3 a4 Ra2 Bd7 Ne6 Be8 Rc2 Nd6+ Ka5 Kc4 b5 Kb3 Ne7 Qe1 Nc8 Qg1 Qdf1 d1R Nb6 d2 Nd8 Nd3 Ka6 Re1 Q1e2 d1B Qd2 Be2 Qd1 Be3 Rc1+ Ka2 Nd2 Qf1 Nc4 Bd2 Nb2 Qg1 Qe3 Bg4 Qef3 Bgd7 Ka7 Bc8+ Kb8 Ba6 Na8 Rf1 Rh3 Ne1 Rc2 Qg3 Rh2 Rg1 Re2 Qg4 Re7 Qf5 Rc7 Be3 Re2 Qb1 Rh2 Bd2
2k2N2/2B2B2/n1Rr2Nq/pq4Nr/Pn5b/1Q1R1bp1/1PP1bPb1/Q2nK3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 b4 Qf3 Bb7 Qc3 Bc8 Qa3 bxa3 h4 g5 h6 d5 h5 Kd7 f6 a5 f7 e5 h7 e4 h6 g4 Bf4 a2 Bg5 g3 Bd3 e3 Nd2 e2 Ndf3 Ra6 Be7 Qe8 Bg5 Bb7 Bb5+ Kc8 Bf6 d3 Ne5 d4 Ng4 Bg2 Bh4 Ne7 Bc4 Nd5 Ne3 Rd6 Nf5 Nc3 Nf3 Na6 Ng5 Qb5 Rd1 Be7 f8N a1Q Bf7 Qc1 Rh3 Qe3 Rd2 Nd1 Rh2 Rg8 h8Q Qe6 h7 Qh6 Qe5 Rh8 Qd5 Bd8 Nf3 Be7 Bg5 Bd8 Bf4 Bh4 Rh3 Rg8 h8Q Rg5 Be5 Rh5 Ng5 Rf6 Qg8 Qh8 Ne4 Ne3 Qg7 Rhh6 Rd1 Bg5 Rh5 Bh4 Rg5 Rh5 Kd2 e1N Qb3 Qh6 Bc7 Rd6 Ne7+ Kb7 Neg6 Kc8 Kc1 d2+ Kb1 d3 Qgc3 Nf3 Rc5 Nd4 Ng5 Nc6 Qcc4 Ncb4 Rc6 Rf6 Qa2 Re6 Qa1 Rd6 Rf1 d1B Kc1 Bdf3 Kd2 Be2 Qb3 Bef3 Kc3 d2 Re1 Ng4 Re3 d1B Rd3 Bde2 Kd2 Ne3 Ke1 Nd1
2rn2q1/3QK1kq/1B4P1/3rp3/2rQR1B1/r1P1PnBp/1b2bNPb/1R2N3 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 Qc7 d3 Qxh2 d4 cxd4 Kf2 a5 Kf3 f5 b4 Kf7 c3 d5 e3 h5 g6+ Kg7 b6 h4 b5 f4 b7 d3 b6 d2 Bd3 d4 Ke4 a4 Kd5 a3 Qb3 d1R Qc4 f3 Bc2 f2 Bd3 f1Q Qc7 a2 Ba3 Nh6 Qd6 Ng4 Nd2 Ne5 Be4 d3 Rc1 a1B Rb1 Bg4 Bf5 Bb2 Ke6 Nf3 Ne4 d2 Nf2 Nc6 Bc5 Ra3 b8B Qc4+ Kd7 e6 b7 Nd8 Bb6 Be7 Qf4 Bd6 Qd4+ Be5 B8c7 Rf1 b8Q d1R Ke7 h3 Qd7 Rd5 Qa7 Qhf4 Rd1 Qh6 Rd4 Bh2 Re4 Qh7 Bg3 e5 Qaa4 Bh5 Bg4 Rfd1 Qaa7 R1d4 Qaa4 Qa2 Qd1 Rc4 Qd4 Ng5 Nf3 Rf8 Nd2 Nf3 Rb1 Ne1 Qa7 Nb7 Qa8 Rd7+ Ke6 Rfc8 Bf5 Be2 Nf3 Rd6+ Ke7 R4c7+ Bd7 Qag8 Qaa4 Rc4 Bg4 Rd5 Qd7 Nd8 Qd1 Nc2 Ne1 Nd4 Qd3 Nf3 Qd1 Rca4 Qd4 Rac4
2RrQ3/3Q1n2/bn1q1P1K/2q1N1n1/5b2/BPb2N1B/pP2R1Pp/1k1nB2r w - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 h5 d5 cxd5 b4 h6 b3 axb3 gxh6 Ke2 h5 Ke1 h4 Ke2 Kf7 Ke3 Kf6 Kf4 a5 d4 h5 d6 e5+ Ke3 Kf5 f4 c5 d5 c4 d7 h3 d6 c3 Bd2 h4 Ba6 c2 Bb5 c1Q Ra4 h2 Bd3 h3 Be2 Ba6 Bf3 Ne7 Ra3 a4 Qf1 Bh6 Nc3 Ng6 Ra1 a3 Qb5 a2 Na4 Qc5+ Ke2 e3 Bh5 Ke4 f5 Bf4 f6 Qdc7 d8B Nd7 Bc3 Nb6 d7 Q7d6 Be7 Rad8 Be1 Kd4 Kf3 e2 Kg4 e4 Bf8 e3 Rc1 Ke4 Qc6+ Kd3 Nf3 Rh6 Rf1 h1N Rf2 Nh8 Bf7 Rh7 Be6 Rh5 Bc3 e1B Re2 Rh6 Ba5 Bc3 Rcc2 Nd5 Nb6 Nf2+ Kf5 Rh7 Nc4 Nd1 Kg4 Nb6 Qc7 Re8 d8Q Rh6 Qdd7 Rd8 Qe8 Rh7 Qcd7 Rh5 Rf2 e2 Rc1 e1N Re2 Rd5 Kh4 h2 Bh3 Rf5 Ng5 Rd5 Kh5 Nf3 Kh6 Re5 Rec2 Re1 Re2 Rh1 Rcc2 Bce5 Be1 Bc3 Be7 Nd4 Bf8 Ne6 Be7 Bg3 Nf3 Ng5 Ne3 Bf4 Ng4 Bb4 Rc4 Bc3 Bf8 Qcd4 Rc8 Q4c5 Re3+ Kc2 Nge5 Kb1 Re2 Qdd5 Bd6 Qd3 Bb8 Qdd6 Bc7 Na4 Ba5 Nb6 Bb4 Qg1 Bc5 Qe3 Bb4 Qec5 Ba3 Nhf7+
5BR1/3QqB2/4pR2/1p1B1bqK/rPPn3Q/n3nP1P/2kr2N1/qNn4b w - - 0 1 legal: proof: e4 h5 a4 b5 d4 f5 g4 hxg4 a5 e6 Nc3 fxe4 Nb1 c5 dxc5 Bd6 Ra3 Bc7 Ra1 Bb6 axb6 Kf8 Be2 Ke7 Bf1 Ke8 Ke2 Ke7 b4 Kf6 c4 Kf5 c6 a5 b7 g5 c7 d5 h3 g3 Rh2 e3 Kf3 a4 Rh1 d4 Be2 g2 Qc2+ d3 Qb3 a3 Qc3 g4+ Kg3 Ke4 Rh2 a2 Qe1 d2 Rh1 d1B Qf1 Bc2 Qd1 Nh6 Qd2 Nc6 b8Q Qe7 Qd1 Rd8 Qe1 Bb7 c8B Rd2 Qd1 Ra4 Nf3 g1N Ne1 Nd4 Ng2 Ba8 Bf3+ Kd3 Qf4 e2 Bd7 e1N Be8 Bc6 Qg5 Nge2+ Kh4 g3 Bd5 Ng4 Rf1 Ne3 Kh5 Ba8 Bb2 Nc1 Bf7 Bc6 Qh4 Bb7 Nc3 Bb1 Rg1 N1c2 Rf1 Na3 Rg1 Bc2 Nb1 Nf3 Bg7 Nd4 Bf8 Bc6 Qf3 Ba8 Qff4 Bb7 Qd6 Ba8 Nc3 Bb1 Qd7 Kc2 Nf4 g2 Rf1 g1Q Ng2 Qh2 Rg1 Qg3 Rf1 Kb3 Rg1 Bc2 Nb1 Bf5 Nf4 Qf6 Bf3 Bh7 Nc3 Nd3 Raf1 a1Q Nb1 Qe7 Bc6 Qg7 Rg4 Qgf6 Rg8 Kc2 Bb7 Be4 Bc6 Bh1 Bf3 Be4 Ng2 Bh7 Bd5 Nc1 Re1 Nef5 Re4 Qe5 Rf4 Ne3+ Rf5 Qg7 Rf6 Bf5 f3 Qg5+
2q1Q1B1/q2r2q1/P2R1Nb1/n1P1P1n1/1N1R1bpk/Pq1r1QN1/3B1K1p/7r w - - 0 1 illegal: No proof kernel
bB1qNb1b/r1Rn2n1/Pr4Q1/1Pq1Q3/1N3N1k/1P1ppr1B/1P4K1/3R2b1 w - - 0 1 illegal: Other
Rn1b1N1b/q3BBPq/1N2Qp2/QrRN3b/2r1P1KP/2P5/4n1bp/1k5q w - - 0 1 illegal: No proof kernel
qr2Q1bQ/NbBQPn2/4KprN/1P2q3/2p5/1n3R2/2P1kPBr/R4qr1 w - - 0 1 legal: proof: d4 e5 h4 exd4 a4 b5 axb5 g5 Na3 gxh4 Nb1 a5 b3 a4 b4 Bc5 Nc3 Bb6 Nb1 Ba5 bxa5 Qf6 Bb2 Qe7 Bc1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf4 c5 g4 h5 e4 f6 e5 a3 g5 c4 a6 d3 g6 a2 g7 h3 a7 d2 Bg2 h2 Bb2 h4 Qe2 d1Q Qe1 h3 Be4 d4 Bb7 d3 Ke4 d2 Qe2 Na6 Nc3 Qf1 Nd5 d1R Ne7 Rh6 Nf5 Rb8 a8Q Rg6 Qd2 Nh6 g8Q+ Nf7 Ne2 Nc5+ Kf4 Qc7 Bg2 Nb3 Nh6 Bb7 Qh8 Qa5 Rg1 h1B Bc3 Qd8 Ba5 h2 Bc7 Bd5 Qc6+ Qd6 Qce8+ Qe7 Rb1 a1Q Qd3 Qa8 Ra1 Be4 Qh3+ Kd5 e6 Qc5 e7 Qd4 Qf5+ Qe5+ Ke3 Rc1 Nd4 Rb1 Nc6 Rd1 Bh3 Bhg2 Ra3 h1R Na7 Rh2 Ra1 Bgf3 Rg3 Rb1 Bg2 Bg4 Qf4 Bc8 Qg4 Bb7 Bh3 Bf5+ Kf3 Be6 Bg2 Nd6 Qh3 Bg8 Qg4 Nf7 Rh3 Qee1 Kf4+ Kd4 Qe6 Qe3+ Kf5 Kc3 Rg3 Kd2 Rf3 Ke2 Q6d7 Qd4 Ke6 Rc1 Qd5 Qe5+ Kd7 Qe1 Qe6 Qc3 Qd6 Rg1 Qd5 Qe1 Qd4 Qh5 Ke6 Qf1 Qdd7 Qe5+
2n3n1/4pb2/1kB3pq/1rRbPQr1/P4NbN/1n6/PK1P1B1q/1R2Qb1N w - - 0 1 illegal: No proof kernel
NK1B3Q/2QPq2p/3R4/2b1n3/2bbkrP1/1N1b1Rp1/P1r1rP2/4RqnB w - - 0 1 illegal: No proof kernel
1KN2k2/3pbb1R/q1P3r1/2B2p2/P1BQ4/QqRnPn1n/r1P1N3/5Rqq w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 axb4 Kf2 f5 Kf3 b5 h4 g5 c6 b3 e3 g4+ Ke2 g3 Kd3 f3 Kd4 g2 Kd5 f2 h6 b2 h5 b4 h7 b3 h6 Nf6+ Ke5 Qb6 a3 Na6 Qg4 Be7 Nd2 b1Q Qb4 b2 Nc4 Nh5 Nd6+ Kf8 Bc4 f1Q Ne2 Rg8 h8Q g1N h7 Nf3+ Kd5 Ra7 Qd4 Qg1 h8R Ra8 Rh7 Rg6 Qa4 Qb7 Qa5 Nb4+ Kc5 Nf4 a4 Nh3 Ra3 Qa6 Rc3 Rb8 Bd2 Qbe1 Bc1 b1Q Ba3 Qb3 Qb5 Qg2 Rf1 Qh1 Qb7 Qg3 Qa8 Qgg1 Qb7 Qa8 Kb6 Qa6+ Kc7 Na2 Qb4 Qb5 Qd5 Ba6 Nb7 Qb2 Bb3 Qd3 Qbc5 Bc4 Qdd4 Bf7 Nd6 Qa6 Bc4 Rb3 Bb4 Ra3 Nc8 Qb3 Kb8 Nc1 Qd2 Nd3 Qd4 Ra2 Qc1 Qa3 Bd6 Nb4 Bc5 Qb3 Qa3 Nd3+
QK2r3/2bpQr1N/2p2nk1/B1bP2r1/1n1n4/NRR2PQ1/3n1PPq/5B1q w - - 0 1 legal: proof: b4 f5 b5 g5 b6 f4 Ba3 f3 exf3 axb6 Bb2 b5 Bc1 b4 h4 gxh4 c4 b5 Ba3 b3 Bc1 b4 Ke2 Ba6 Ke1 Bb5 cxb5 Bh6 Bb2 Bg7 Bc1 Bf8 Ke2 Kf7 Ke3 h5 Ke4 e5 Kd5 c6+ Kc4 h3 d4 b2 a4 h4 b6 h2 d5 e4 a5 e3 b7 b3 a6 h3 a7 e2 Be3 e1B Bc5 Qc7 Na3 b1N Nc2 b2 Qd2 Kg6 Bb6 Nc3 Nb4 b1N Qe3 Nb5 Qe7 Nd2+ Kc5 Rh5 Ba5 Rg5 Ra3 Nd4 Rb3 Nf6 Nc2 Qg3 Kb6 Na6 b8Q Nb4 Qc7 Re8 Kb7 Qh4 a8Q Qh6 Qed8 Bc5 Qg3 Qh5 Na3 Qh6 Ne2 Qh4 Rg1 h1Q Nc3 h2 Kb8 Rg4 Bd3+ Nde4 Ncb1 Na2 Bc7 Ba5 Qh3 Nb4 Rc1 Qg1 Rcc3 h1R Bf1 Rh2 Bb6 Qh1 Nd2 Qh8 Qg3 Rh7 Bc7 Rf7 Bb6 Q8h2 Bc7 Nd6 Ne4 Nc4 Ng5 Nd2 Nh7 Bab6 Kb7 Rg5 Qe7 Ba7 Ba5 Bab6 Qge5 Bc7 Qg3 Bd8 Kb8 Bc7+
k7/1rqpbr1q/p4Rnn/Qnr1N3/N1B1PP1P/B2K2RP/6b1/Rn3Q2 w - - 0 1 illegal: No proof kernel
qk4n1/3p2K1/p1nPP2R/1BP2NQQ/br1n2P1/1n2b1BB/q4r1R/N1r5 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 h5 Kf3 f5 c4 a6 d4 h3 e4 h2 e5 h4 b6 h3 e6 Nc6 b7 Qa5 b8Q Kd8 d5 Bh6 d6 Qa2 Qb5 Rb8 Nd2 Bb7 Ne2 Kc8 Ng3 Rh7 Nb3 Rf7 Qa5 Ba8 Bb2 Rb4 Be5 Kb8 Rc1 Rf6 Rc2 Rf8 Na1 Rc8 Ke2 f3+ Kd3 f4 Ke4 f2 Kf5 f3 Kg6 Be3 Nf5 Rc7 Bd3 f1R Bg3 f2 Qh5 Rc1 Kh7 f1N Kg7 Nd2 Qg5 Nb3 Rd2 Ne5 c6 Rc8 Qd5 Rf8 c5 Bb7 Bb5 Ba8 Nd4 Rf2 Nf5 Bb7 Qf3 Ba8 Qfh5 Bb7 Rf1 h1Q Rg1 h2 c7+ Kc8 Rb2 Bc6 Re2 Kb7 c8B+ Ka8 Bb7+ Kb8 Bd3 Ba4 Bb5 Nc6 Rd1 Na7 Rd4 Nc6 Rh4 Qf1 Rc2 h1N Rh2 Qd1 Rc4 Qf3 Rch4 Ne5 Bd5 Nc6 Bdc4 Qd5 Be2 Qe4 Bg4 Qd5 Bh3 Qf3 Bf4 Ng3 Be5 Ne2 g4 Qd5 Bg3 Qe4 Qh8 Ned4 Rh6 Na7 Qh7 Qa8 Qhg6 Nac6 Qe8+ Ka7 Qeh5 Kb8
8/2Rp1QPP/1K1n1bPq/Nr1NQ3/3B4/1Q1Pbrpk/4nbr1/R4qBb w - - 0 1 illegal: No proof kernel
B2q2Q1/NP3K2/2R1n1n1/2Q1b3/1bp3n1/Pbr1PN2/p1P1r1bR/Q2Bqk2 w - - 0 1 illegal: No proof kernel
2B4N/1P1rb2n/qBP2kq1/2P2qRB/1p3r2/R2q1Qrb/p2PKn2/1QN5 w - - 0 1 illegal: No possible last move, all moves rejected
1KbB4/NP2n3/np3b2/k5b1/q1p1P1PP/NR2B2q/2rr3R/QB1Qb2r w - - 0 1 illegal: No proof kernel
QbNKq1RQ/1P1Nr1nB/P3P3/5p2/1nQbq1Pk/2bRp3/5qr1/5bB1 w - - 0 1 illegal: No proof kernel
2Nq2Q1/1PB4r/Pp1Q1pq1/1R1r1k1b/3Rq3/3P2bR/B1KNq1Pn/4rn2 w - - 0 1 illegal: No proof kernel
2bQ4/1p3q1P/B1R1Bqn1/1Kr2PQ1/nP4P1/3qq1R1/2p1rrNb/2Q1Nk2 w - - 0 1 illegal: No proof kernel
2r1b1B1/P3bPQp/r1n2q2/B1pK1QR1/2nQNq1r/1b1P2P1/2R2b2/5kN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 e5 a4 b5 g3 h3 d6 h2 a5 b3 a6 b4 d3 b2 f6 b3 f7 Bd7 f5 Ne7 f6 Nf5 Bg5 Be7 f8Q Be8 d7 Ne3 Qh6 Nc4 Ra2 Nc6 Nd2 b1Q Bh4 b2 Qf8 Qc1 Qf7 b1B Qg8 Bc2 Bg2 Bb3 Qf3 Kb4 Bh3 Kc3 Kd5 e4 Be6 e3 Qf5 e2 Qg7 e1B Bg8 Bf2 Ra5 Kc2 Ne4 Kd1 Bg5 Ke1 Bd2+ Kf1 a7 Rb8 Rb5 Rb6 Ba5 Ra6 Rc5 Qg5 Rb5 Qb8 d8Q Qb6 Qd6 Qbe3 Qde5 Qef4 Qd4 Qgh4 Be6 Rf8 Bg8 Qhh6 f7 Qf6 Qc3 Bd7 Qd4 Rc8 Rc5 Be8 Ne2+ Kg2 Rc1 h1R Rc2 Kf1 Ng1 Rh4 Rb5 Nb8 Rb6 c5 Re6 Q6h6 Rg6 Nc6 Rg5 Qf6
KQn2N1q/prpRN3/k3n3/4N1PP/1Qr1b1R1/nPbrBq1B/P7/6r1 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 e5 dxe5 g5 fxg5 hxg4 Kf2 d5 Ke3 Kd7 Kd4 Kc6 e4 Kb7 h4 f5 e6 g3 e7 g2 Kc5 f4 b3 c3 e5 d4 e6 d3 h5 c2 Na3 f3 Rh2 d2 Rh3 f2 Rh4 Bg7 e8Q Ne7 Nb5 Bc3 Qe1 d1N Nf3 g1R Rg4 Nbc6 Bh3 f1Q Ne5 Rb8 Be3 c1R Nd6+ Ka6 Nf5 Nb2 Qg8 Rc2 Rd1 Qf3 Rd7 Bb7 Qh4 Nc8 e7 Rh6 e8N Rd6 Nf6 Nc4 Ne7 Na3 Nh7 Nd4 Nf8 Be4 Qh8 Rb7 Qe1 Ne2 Qd2 Rd5+ Kc6 Nf4 Qd4 Ne6 Qb4 Nd6 Nh7 Qa8 Qb8 Nc8 Nf8 Rd3+ Rd5 Nb6 Qd8 Qc8 Nfd7 Rb8 Qh8 Qcf8 Qg8 Q8f6 Qe8 Qh8 Nf8 Be1+ Qc5 Nbc4 Qb4 Rb5 Qb8 Nd6+ Kd7 Rc4 Rd4 Nf5 Kc8 Bc3 Rd7 Rbc5 Qa8 Nd6+ Kb8 Ra5 Qd5 Rac5 Ka8 Rc6 Qdc5 Nc8 Qb8 Rb4 Qd4 Rb7 Qb4 Rc4
2B3bR/Rr1Q1q2/nrPB1rP1/K4pNp/4Rbr1/n1Q5/2P1P3/N1k1bb2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kd2 Ke7 Kc3 Ke6 Kb4 Ke5 g4 Ke4 b3 d5 b6 f5 g5 a5+ Ka4 h5 c6 f3 b4 h3 b5 h2 b7 f2 b6 d4 g6 d3 Nd2+ Ke3 Nh3 Bd6 Rg1 h1R Rg5 Rg1 Ra2 Qf6 Ra3 Rh7 Bg2 f1B Qe1 Ne7 Be4 Nd5 Kb5 a4 Nb3+ d2 Qh4 Qf7 Nf2 Bf4 Rg4 Ra6 Qd8 Be6 Bd3 Nc3+ Kb4 Rg2 Ne4 Nb1 Na1 Ba2 Bb2 d1R Ng5 Kd2 Be5 Kc1 Qd7 Rg7 Rh4 Rg4 Bd6 Bb3 Ra2 a3 Bc4 Rd3 Be6 Rd5 Qd8 Re5 Bc8 Re6 Qd7 Rf6 Kb5 Ra7 Kb4 Na6+ Ka5 Be6 b8R Rb7 Ra8 Rb8 b7 Bd5 Rb2 a2 Ra7 Na3 Rb4 Qf8 Re4 Bg8 Re8 Qf7 Rd8 Ra8 b8Q Rh7 Qb3 Rb8 Qe8 Rb6 Qd7 Qe8 Rh3 Bc4 Qe6 Rhb7 Qd7 Qe7 Rh8 Bg8 Qc4 Qf7 Re3 Kd1 Nb3 a1B Re4 Bc3+ Qb4 Bcd2 Na1 Kc1 Qc3 Be1
2b1bb2/2b3q1/Bpk1P3/n1n1Q1N1/nP3p1P/2nRNP1r/3K2R1/BQ2Q1r1 w - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 hxg4 a3 b6 a4 Ba3 a5 Bf8 axb6 cxb6 c4 d5 b4 Kd7 e4 g5 f3 a5 h3 f5 c5 d4 e6+ Kc6 e7 f4 e8Q+ Nd7 e5 a4 e6 a3 Ba6 d3 Qh5 a2 Qg6 d2+ Ke2 g3 Qgc2 g4 Qd3 g2 Qf1 d1B+ Kd2 g3 Qg6 Qg5 Qe2 Ne7 Qe3 Ba4 Rh2 Rb8 Qf5 Qg7 Nc3 Rh6 Rb1 a1B Nd5 Be5 Rb3 Bc7 Qb1 Ra8 Qe1 Rh4 Ne2 g1N Nec3 g2 Bb2 Ne2 Ne4 g1N Ng5 Nc3 Ne3 Nge2 Ba1 Bb5 Rg2 Na4 Rd3 Nec3 Nc4 Rg4 Ne3 Rg3 h4 Rh3 Rh2 Ng6 Rf2 Nge5 Rg2 Nc4+ Kc1 Bb8 Kc2 Na5 Kd2 Kc7 c6 Ndc5 Nd5+ Kd6 c7 Be8 Qe5+ Kc6 Ne3 Bcd7 c8Q+ Bc7 Qd8 Rc8 Qdf6 Rd8 Qff5 Bc8 Qg4 Rd7 Qg3 Rf7 Qf2 Rf6 Qfe1 Rg6 Nf7 Rg4 Ng5 Rgg3 Rf2 Rg1 Rh2 Bb7 Rg2 Bc8
2nNn1b1/P1bkn1pQ/2R1r1P1/4KP2/2prBP1N/2B1Q1rq/3Q1nR1/5r2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 c4 d5 cxd5 Ra7 g5 Ra8 Qg4 hxg4 Ke2 b5 Kd3 e5 Ke4 c5 f4 c4 h4 b3 d4 g3 a4 b4 a5 g2 d6 b2 h5 b3 g6 Ne7 h6 Nd7 h7 Nb6 a6 Kd7 Na3 b1N d5 b2 Nb5 Na3 a7 b1R Nd4 Nb5 Rh2 Nc7 Bd3 Ne8 Bd2 Rf1 Ngf3 g1R Nh4 Rg3 Bc3 Bb7 Ne6 Nbc8 Rb1 Qa5 Rb3 Qa3 Nd8 Rb8 Rbb2 Ba8 Rhg2 Rb6 Nf3 Rg8 h8Q Qb3 Qh7 Rh8 Ke3 e4 Kd4 e3 Ke5 e2 Be4 e1N Nh4 Qa3 Rb3 Ra6 Rb6 Nd3+ Kd4 Nf2 Ke5 Rg8 Rc6 Rb6 Bd2 Qf3 Be1 Qg4 Bc3 Qh3 Nf7 Nf6 Nf3 Ke8 Rc5 Rh8 Rc7 Neg8 Nh4 Be7 Rc5 Bd8 Rc7 Nge7 d7+ Kf8 d6 Bd5 Rc5 Bc7 Ba1 Bc6 d8Q+ Be8 Qd7 Rg8 Qa4 Bd7 Qb3 Ke8 Qe3 Be6 Bc3 Rf8 Ng5 Bg8 Nf7 Rb2 Rc6 Rd2 Nh6 Kd8 Ra6 Ne8 Rc6 Ba5 d7 Rf6 Ra6 Bb6 Nf7+ Kc7 Bc2 Kc6 d8Q Rd3 Qdd4 Rd6 Nd8+ Kd7 Qd5 Rdd1 Be4 Bc7 Rc6 Rd2 Qdd3 Rdd1 Qde2 R1d4 Q2d2 Re6+
n1B2Q1R/2q1n3/qqk1N1qP/1R2P1n1/P5NN/2BQ1pbr/2Kp1P2/3q1r2 w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 b4 h5 g4 hxg4 Bf4 Ba6 Bg5 axb4 Bc1 b3 Qc2 b4 Qd1 Bb5 cxb5 Bc5 Kd2 Bd6 Ke1 Bf8 Kd2 c5 h4 g5 e4 f5 b6 d5 h5 Kd7 b7 f4 e6+ Kc6 e7 c4 e8N f3 a3 g3 Rh3 d4 Rh1 c3+ Kd3 g2 Rh4 c2 Be2 g4 Qd2 b2 Rh2 b3 Ng7 g3 Ne8 Nd7 b8Q Bd6 Qd1 Qc7 Nc3 b1Q Nf6 b2 Nh3 g1N Na4 g2 Nc5 Ne7 Qf8 Nb6 Ng4 Bg3 e5 Qa2 Ne6 b1Q Nhf4 Nh3 Bb2 g1Q Ng6 Ng5 Bc3 c1Q+ Qc2 Qbb2 Rb1 Qcd1+ Qd2 Rb8 Nh4 Na8 a4 Qbb6 Rb2 Qgf1 Rb5 Qac2+ Kc4 Qg6 Qd3 Qa1 Kb3 Qad1+ Qc2 d3 Kb2 d2 Qd3 Qfe1 Bf1 Qee3 Bh3 Qa6 Rh1 Qde2 Kc2 Qc5 Ra5 Rb1 Rb5 Q5b6 h6 Rg8 Rg1 Ra1 Rgb1 Rg7 R1b4 Rf1 Rd4 Qe1 Rd8 Qd1+ Kb2 Qc5 Nf6 Nf7 Qg8 Qf5 Nf8 Bh2 Bg4 Qh5 Bc8 Rg3 Ng4 Ng5 Ne6 Rh3 Qf7 Qd4 Rh8 Bg3 Qf4 Qdb6 Qf8 Qe2 Kb3 Qg6 Kc2 Qd1+
1R3N2/2PPRnkN/3rQ1bp/2b1q3/2npB1B1/1K1P2q1/1nn1B2P/1Qn4q w - - 1 2 legal: proof: e4 b5 f4 a5 b4 axb4 Bb2 c5 Be5 d5 Ne2 g5 fxg5 c4 Bb2 c3 Bc1 d4 Bb2 cxb2 Ng1 Ra6 Nc3 Rd6 Nb1 Rd5 exd5 Ba6 Bd3 Bb7 Bf1 Bc8 g4 f5 a4 Kf7 c4 e5 c5 f4 a5 f3 d3 b3 Kd2 e4 c6 b4 c7 f2 d6 e3+ Ke2 Nh6 a6 Qf6 a7 Bf5 a8B Na6 d7 Nc5 Nc3 b1N Nf3 b2 Nh4 b3 Nd5 Na3 Rb1 Na4 Ng6 Bc5 Nf8 Nc4 g6+ Kg8 g5 Nf7 g7 Qe6 Bg2 f1N Bf3 Qd6 Qc2 Qg3 Re1 b1N Kd1 e2+ Kc1 Nfe5 Nf6+ Kf7 Qd1 b2+ Kc2 Nbc3 Bg4 Rg8 Baf3 h6 N6h7 Na2 Qa1 Be4 Rb1 e1Q g6+ Ke7 Rg1 Nf7 Rg2 Qe3 Re2 Qef4 Re3 Qd6 Be2 Qf6 Ne6 Rb8 Nef8 Rb6 Bh3 Rd6 Bhg4 Nd8 g8Q Qe6 g7 Bg6 Ng5 Kf6 Re4 Qf5 Re7 Qfe5 Qd5 Nf7 g8B Nd8 B8e6 Nf7 Ngh7+ Kg7 Bef5 Nfe3+ Kb3 Nf1 Be4 Nfe3 Qe6 Nc2 Qd5 N4c3 Qe6 Nd1 Ka4 Na5 Rc1 b1Q Qb2 Qa1 Rb1 Nc4 Qb3 N4a3 Rb2 Nc4 Qb4 Qc1 Qe1 Qb1 Rb8 Ndb2+ Kb3 Qc1 Qg1 Qf1 Qh1 Qff3 Qd1 Qh1 Qb1 Nc1+
1b2BBQ1/4N1pn/NP1bK1bb/2q1Q2P/2pPQ2r/q1P3R1/1n1Rbq2/k7 w - - 0 1 legal: proof: f4 d5 e4 dxe4 a4 h5 g4 b5 axb5 hxg4 Na3 e5 Nf3 a5 Nb1 e3 Ng1 e4 Ra3 Rh5 Ra1 Re5 fxe5 Ra6 Bd3 Rh6 Bf1 Rh8 Ke2 Kd7 b4 Ke6 d4 Kd5 h4 Kc4 c3 c5 b6 f5 b5 f4 b7 a4 e6 g3 e7 a3 e8Q g2 b6 f3+ Ke1+ e2 Kf2 e3+ Kg3 f2 Kf4 a2 Ke5 Na6 b8Q Qd5+ Kf4 Bd6+ Qe5 Nb4 Kg5 Nd3 Qd2 Kb3 Na3 e1Q Ne2 g1B Nb5 c4 Nc7 Nb2 Bg2 f1B Na6 Nf6 Rh2 Bf5 Qd3 Bg6 Nf4 e2 Qe4 Be3 Qg8 Qf2 Bf3 e1B Bh5 Ka3 Rg2 Bd3 Rg3 Nh7+ Kg4 Qc5 Nd5 Bb8 Ne7 Bh6 Bg5 Bf1 Rd1 a1Q Rd2 Ka2 Bf6 Qc1 Bg5 Ka1 Bf4 Bf7 Kf5 Bg6+ Ke6 Bd6 Q5d5 Bb8 Bd6 Be2 Qde5 Qc2 Nf5 Qb3 Bf8 Qba3 Ne7 Bf1 Bd1 Be2 Ba4 Bd6 Rc2 Bed2 Be8 Bdf4 Rd2 Bb8 Qh5 Bfc7 Qhe5 Bd6 Qg5 Nf6 Qgf5 Bg5 Qff4 Rh5 Qfe5 Bh6 Rf3 Nh7 Rg3 Rg5 h5 Rg4 Ba4 Rf4 Be8 Rh4
q5Qb/n1q5/bR2Pp2/BBPNNP2/1Kbk4/np6/1PbbRNrn/5Q2 w - - 1 2 legal: proof: d4 b5 a4 a5 g4 e5 d5 h5 gxh5 b4 d6 e4 Qd3 exd3 Bd2 cxd6 Ra3 d5 Bc1 d4 Ra1 Ra7 Na3 Rb7 Nb1 Rb5 axb5 Qf6 Nh3 Qb6 Ng1 Qd8 Kd2 Ke7 e4 Ke6 f4 g5 c4 d5 h4 f6 c5 b3 b6 g4 b7 g3 f5+ Ke5 h6 g2 h7 a4 h5 a3 h6 a2 Ne2 g1B Bg2 Be3+ Kd1 d2 Rh4 Nc6 b8Q+ Qc7 Ng1 Ba6 Rg4 Na7 Nh3 Bg7 Nc3 Bf4 Rb1 a1N Qb5 Nc2 Nf2 Na3 Bf1 Be3 Ke2 d1B+ Kd3 Bd2 Rg2 Bh5 Ra1 Bf7 Rh2 Nc4 Ra4 Na3 Rb4 Be6 Qc4 Bf7 Rb6 Be6 Ke2 d3+ Kd1 d4 Nd5 Ba5 Qb5 d2 Ke2 d1B+ Kd3 Bb4 Bd2 Ba5 Bb4 Bc2+ Kd2 d3 Kc3 d2 Qe2 d1Q Qe1 Qb8 Bb5 Qc7 Qf1 Qa1 Rg2 Ne7 Rh2 Rb8 h8Q Nec6 h7 Nd4 Qg8 Nf3 h8N Rf8 Nh3 Rf7 Re2 Nh2 Nf2 Rf8 Ne7 Bc4 Nf7+ Kf4 e5 Bh8 e6 Rd8 Qh7 Rg8 Ne5 Rg2 Qg8 Qa2 Kd4 B4d3 Be1 Bd2 Kd5 Bc4+ Kd4 Bc1 Ba5 Qa1 Kc3 Qa2 Rd2 Ke3 Kb4 Qa1 Re2+ Kd4 Nd5 Bd2+ Ka4 Qd1 Re3 Qf3 Re2 Bg5 Kb4 Qe4 Ne7 Qa8 Nd5 Bd2+
BBB1N1b1/1Qp5/2RP4/1q2P3/q1bpQ1Nr/1kbqn1Pb/r2P1K1b/7R w - - 0 1 legal: proof: h4 e5 c4 b5 a4 bxa4 Qb3 g5 Qc2 d5 Qd1 d4 hxg5 Nd7 f3 Nb6 f4 Nd5 cxd5 exf4 b4 Kd7 e4 Kd6 g6 f5 b5 Kc5 g7 Kb4 b6 h5 b7 a5 Rh2 a3 Rh4 f3 Bb5 f2+ Kf1 f4 b8Q a2 Bb2 a4 Ke2 f1B+ Kf2 a3 Nc3 f3 Rh3 h4 Qa7 Bc4 Ba6 Bd6 Nb5 Qe8 Qb1 Ne7 g8B Nf5 Rh1 h3 Qb7 h2 Nh3 Kb3 Qe1 Rh6 Rc1 a1B Qe2 a2 Ba3 Qg6 Bc5 Ne3 Ba7 Rh4 Bb8 Bc3 Be6 Bf4 e5 a1Q Bg8 Qb6 Nd6 Qa4 Ne8 Qbb5 d6 B8e6 Bh7 Bg8 Be4 Ra7 Qd3 Ra8 Bc6 Ra7 Qe4 Ra8 Rhd1 h1B Bd5 Bh2 g3 Bg2 Rh1 Ra7 Ke1 Nd1 Nf2 Ne3 Ng4 Bh3 Kf2 Ra8 Qb6 Ra7 Bc8 Ra5 Ba8 Ra7 Qbb7 Ra5 Qd3 Ra7 Ke1 f2+ Ke2 Ra5 Kf3 Ra6 Qde4 f1Q+ Nf2 Bb4 Qh7 Qa3 Qh6 Bce6 Qg6 Qfd3 Rc6 Bc3 Qe4 Bc4 Ng4 Qab4 Kf2 Ra2 Rb6 Q4a5 Rc6 Qa4
4q1bB/k1Np3Q/P4K2/1R3Q1P/n2PnrP1/1q1n1BB1/1p1Rn2n/rq5N w - - 0 1 illegal: No proof kernel
1r3kB1/2K1N1b1/Np1r1r2/pqR3B1/7B/qP1Qn1r1/Pbq1P2P/1r1R1Q2 w - - 0 2 legal: proof: f4 h5 g4 hxg4 c4 e5 c5 exf4 c6 Bb4 Na3 Bd6 Nb1 Bf8 d4 b6 Kf2 Na6 Ke1 Bb7 cxb7 c5 Nc3 c4 Nb1 Nc5 dxc5 Be7 Nh3 Bd6 Ng1 Bf8 Kd2 f5 Kc3 g5 Kb4 a5+ Kb5 d5 Kc6 g3 b8B c3 b3 f3 Nh3 f4 Qc2 g2 Ba3 g1R Qd2 f2 Bc7 d4 Bd6 f3 Qf4 g4 Qe5+ Qe7 Qe3 c2 Bf4 c1B Qe4 d3 Qd4 d2 Ng5 d1Q Ne6 g3 Qd3 Nf6 Nc3 Ng4 Bg5 Rb8 Nd5 Qc2 Bg2 Bg7 Nec7+ Kf8 Na6 Bcb2 Rd1 f1R Rc1 Qe5 Ne7 f2 Bd5 g2 Bg8 Ne3 Kd7 Rh5 c6 Qb5 Kc7 Rh6 Bd6 Rd1 Bg3 Rf6 B3h4 Rge1 Rg1 f1Q Rh1 Rd2 Rd1 g1R Rc1 Qb1 Rc5 Rg3 Rg1 Qf3 Rf1 Rc1 Rd1 Qh5 Kd7 Qb4 c7 Qa3 c8Q+ Qe8+ Kc7 Qc2 Qh3 Qb5 Qf1 Rb1 Qdf5 Rdd8 Qd3 Rd6
B1Q2n2/2qpB2R/p1QP2RP/1n4nr/1rN2r2/1K1P1r2/n2NB2P/1b1rk3 w - - 0 1 legal: proof: g4 b5 f4 e5 a4 bxa4 c3 h5 gxh5 exf4 Nh3 Bc5 Ng1 Bd4 cxd4 Ba6 Kf2 Bb7 Ke1 Bc8 e4 Ke7 b4 Ke6 e5 Kf5 d5 Ke4 b5 g5 e6 c5 d6 f5 e7 c4 e8B a3 b6 a2 b7 c3 Bc4 f3 Bcf7 Kd3 Bd5 f2+ Kf1 c2 Bg2 g4 Bd5 f4 Bb3 g3 Ba3 c1N Nc3 Na6 b8Q Bb7 Ne4 Ne7 Qc8 Nc7 Bg6 Nb5 Nf3 Qc7 Bd5 a6 Be8 Ng6 Bb2 Nf8 Qa4 Bc6 Rb1 a1R Bf6 Na2 Rg1 Rb8 Re1 Rd1 Be7 Rb6 Kg2 f1R Bg6 Ba8 Bf5 Rc6 Bg4 Rc5 Bc6 Rg8 h6 Rh5 Re2 Rgg5 Rf2 Rf5 Bd5 Ra1 Bb7 Rfd1 Rff1 Ke2 d3 Rf6 Nfd2+ f3+ Kh1 Rf7 Nc4 Rf4 Bc6 Bb7 Ned2 Ba8 Be4 Bd5 Re1+ Kf2 Re3 Bg8 Ba8 Bf7 Re6 Bg8 Rg6 Bf7 Nf1 Ke1 Rg2 f2 Nfd2 Be6 Be2 f1R+ Rg1 Bf7 Kg2 Be6 Rg7 Bf7 Rh7 Rf3 Nb6 Bb3 Qe4 Bc2 Nbc4 Bb1 Qc6 Rd5 Kh3 g2+ Kh4 Rh5+ Kg4 Rfh3 Qf3 Rg3+ Kf4 Rg4+ Ke3 Rf4 Rh1 g1N Qc6 Nh3 Rg1 Rf3+ Ke4 Ng5+ Kd5 Rf4 Rg4 R1f3 Kc5 Nac3 Kb4 Ra4+ Kb3 Na2 Rg2 Nge6 Rg8 Ng5 Rg6 Rb4#
5b2/r2Q1rb1/1p1PB3/4pr1N/nK2B1Q1/1PbB1N1P/1R1bPkb1/2R2nb1 w - - 1 2 illegal: No possible last move, all moves rejected
2qbrbK1/1Qp1bN1r/1q1B4/r1P2Rn1/N2PpQ2/2BbP1rk/7P/2R4B w - - 0 2 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 h5 Nc3 hxg4 Ra2 e3 Nb1 e2 Ra5 Nc6 Ra1 Nd4 Ra2 Nf5 Ra1 Ne3 fxe3 Rh3 Kf2 Rh8 Kg3 Kd7 Kf4 Ke6 Kg5 e1B d4 a5 c4 f5 Kg6 g3 b4 g2 b6 a4 b7 a3 b8B f4 b5 a2 b6 f3 b7 f2 c5 Rh7 Nc3 Nf6 Qh5 Ne4 Nd1 Ng5 Rb1 a1R Qf3 R1a5 Be2 f1Q Qf4 Bh4 Nh3 g1B Nb2 Bgf2 Bf3 Qa6 Rf1 Qb6 Ba7 Be1 b8Q Ba6 Bb7 Qc8 Na4 Bd3+ Be4 Beg3 Bb2 Be1 Bc3 Beg3 Qf3 Bd6 Qf4 Nf3 Rb3 Qb5 Ba1 Ra6 Rc3 Qcd7 Qb7 Re8 Qg5 Qc8 Bb6 Ra8 Ba5 Qb6 Bb4 Ra5 Qh6 Bf6 Kh5 g5 Kg6 g4 Rcc1 g3 Be1 g2 Bac3 g1R+ Bg3 Bg5 Bf4 Rg3 Qh4 Kd7 Rf2 e5 Rff1 Bf6+ Ng5 Bd8 Qg4+ Ke7 Nf7 Ng5 Qh4 Ke6 Rf2 Bc4 Bh1 e4 Be5 B6e7 Bd6 Bd3 Rff1 Rg7+ Kh6 Rf3 Qg3 Kf5 Qe5+ Kg4 Rf2 Rg3 Rf5 Kh4 Qf4+ Kh3 Qf2 Ne6 Qf4 Rg8+ Kh7 R8g7+ Kh8 Ng5 Qb8 Bf6 Qb7 Rh7+ Kg8 B6e7
1N6/1N1QQB2/r1b3p1/nq1P1PK1/2pk2PR/2b1b1P1/rb4Qq/BR1q1q2 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 e4 Nc6 g3 Ne5 h3 Ng4 hxg4 fxe4 Qb3 dxc4 Qf3 Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 b4+ Kd4 d3 c5 f3 a5 b6 h5 b5 a4 b7 e3 b8Q h4 b6 e2 b7 e1Q Nh3 g6 Rh2 a3 Rb2 c3 Qa4+ c4 Rb5 a2 Ng5 c2 Nd2 h3 Qc7 h2 b8Q h1Q Qbb7 Qd5 Nf7 e5+ Kg5 e4+ Ne5 e3 f4 e2 f5 Ra6 Bg2 Bd7 Ne4 Qef1 Rbb1 e1B Nc5 Qh2 Bb2+ Bc3 Qab4 Be8 Ned7 Bg7 Nb8 Bc6 Qd7 Ne7 Qa8 Rf8 Nb7 Rf6 Qa3 Rd6 Be4 Qb5 Bd5 Re6 Qad6 Re2 Q6e6 Rd2 Qe2 c1B Bf7+ Bd5 Qee6 Nc6 Qee7 Be5 Be8 Na5 Bf7 Ke3 d4 Bc6 d5 Kd4 Qa7+ Kd3 Qf2 Bed4 Ba3 B1b2 Qg2 Bg1 Bb4 Kd4 Bd6 Be3+ Bf4 Qe2 Rh1 Qf1 Rb1 Qhg1 Rh4 a1Q Qc8 Qh2 Qcd7 Bg1 Bc7 Qaa4 Bd6 Qad1 Bf4 Ba1 Bc7 Ra2 Bf4 Bab2 Bc1 Ba3 Bb2 Bf2 Ba1 Bab2 Qee8 Bg1 Qee7 Be3+
1n2kB2/4bp2/2Np1Pnb/1PP1RB2/qN5K/1bnP3N/3Rr2Q/4Qbnq w - - 1 2 legal: proof: b4 b5 h4 g5 a4 c5 axb5 cxb4 e4 gxh4 e5 Ba6 e6 Bc8 Ra4 a6 Ra1 d6 Ra4 a5 Ra1 Ra7 Ra4 Rb7 Ra1 Rd7 Qf3 Bh6 Rh2 Kf8 exd7 Kg7 Qd1 Kf6 Rh3 Ke6 Rh1 Bf8 g4 h5 c4 h3 f4 a4 Kf2 a3 Kg3 h2 d3 h4+ Kh3 a2 g5 b3 g6 b2 g7 Qa5 d8Q Qa4 Na3 b1N c5 Nc3 Qa5 Kd7 f5 e5 Qc7+ Ke8 Qc2 e4 Qg2 e3 Rb1 a1B Nc2 e2 Qa5 e1N Nb4 Be7 Rb2 Be6 Bh6 Bb3 Rd2 Nf3 f6 Bb2 Kg4 Bc1 Nh3 Rh7 Rg1 h1B Qh2 Bg2 Be2 Rh8 Re1 Bf1 Bd1 Ng1 Re5 Rh7 Kh5 Rh8 Bg4 Rh7 Bf5 Rh8 Nf4 h3 Kh4 Rh7 Qe2 h2 Nh3 h1Q Qh2 Rh8 Be6 Bf8 Bf5+ Ne7 g8N Rh7 Qa8 Rg7 Qe4 Rg2 Qe1 Re2 Be6 Ned5 Ne7 Nf4 Nec6 Be7 Bf5 Ng6+ Kg4 Qa8 Bf8 Qa4 Rd1 Nh8 Kh4 Bh6 Rd2 Ng6+
2QN1b2/1np2b1r/2R5/R1PB2nK/PB1P1k2/2b5/b1rP2pb/NQNn1n2 w - - 0 1 illegal: No possible last move
1rR1r1k1/2R5/pb1q4/K1p2P2/B1PN3r/bqQ1P2b/Pq1r2bB/3QQ2N w - - 0 1 legal: proof: d4 f5 b4 e5 g4 fxg4 b5 exd4 b6 a6 h3 g5 Bd2 g3 Be3 Nf6 Bc1 Nc6 h4 Na7 bxa7 g4 Nc3 Ne4 Nb1 Ng5 hxg5 Bh6 Rh2 Bg7 Rh1 Bf8 Kd2 Kf7 c4 d5 f4 h5 g6+ Kg8 g7 b5 Rh4 b4 Bb2 b3 Bh3 d3 Kc3 g2 Qc1 d2 Qe1 d1R Ba3 b2 Bb4 d4+ Kb3 g3 Ka4 d3 Ka5 d2 Na3 b1R Nc2 Qd6 Bd7 c6 Rh3 h4 Nd4 Rb8 Rh2 h3 a8Q Rh4 Qa7 Rb3 Rb1 Re3 Qc7 Re7 Qd8 Re8 Bc3 Be7 Rb7 Bf8 Rh1 h2 Nh3 g1B Rc7 g2 Bb2 Be3 Nf2 g1Q Ba3 Qg2 f5 Bb7 Rg1 h1B Bc1 Qgh2 Rg3 Bg2 Nh1 Bh3 Ba3 Qf4 Bd6 Qff2 Be5 Ba3 Rg2 Qhf4 Rc8 Qh6 Bh2 Qd6 Rg3 Qg2 Qf6 Bf2 Rb3 Ba8 Rb7 Be3 Rbc7 Bb7 Nc2 Ba7 e3 c5 Qc3 Ba8 Bb5 Qb7 Bc6 Qb2 Ba4 Bag2 Nd4 Rb1 Qe2 d1Q Qee1 Qdb3 Qd1 Kh7 Qde1 Rd1 g8Q+ Kh6 Bd7 Rd2 Qd5 Kg7 Ba4+ Kh8 Qf3 Kg8 Qfd1 Bb6+
1rR1n1N1/4r3/pN1rq3/6Bb/1n3PQ1/R2pPBpQ/1P2K1P1/1q1Rn1kb w - - 0 1 illegal: No possible last move, all moves rejected
7n/Bb1rR2p/K3P1QN/3Qq3/1pB2P2/2pPb1Qb/2Nqk2P/R2r1nn1 w - - 0 1 legal: proof: g4 e5 b4 f5 b5 fxg4 b6 d5 Na3 d4 Bb2 e4 Nb1 e3 dxe3 d3 cxd3 axb6 Ba3 b5 Bc1 b4 Kd2 Ke7 f4 Kf6 a4 Kf5 a5 g5 a6 b5 a7 c5 Qa4 g3 e4+ Kg4 e3 g2 e5 b3 Kc3 c4 e4 b4+ Kb2 Nf6 e6 Qe8 e7 Nd5 e5 Nd7 Qa5 Bb7 Ra4 Ne3 Ne2 Kf3 Na3 g1Q Bh3 g4 Qa6 g3 Nc2 g2 Ra1 Qe1 Be6 g1N Ng3 Nf1 Nf5 Qd2 Nh6 Ke2 Bg8 Qh5 e8Q Bc5 Qeg6 Nf8 Qg3 Be3 Qag6 Rd8 a8Q Rd7 Bf7 Rg8 Qa5 Qg5 Qd5 Qh5 Ra6 Qf5 Re6 Qg5 Re7 c3+ Ka1 b2+ Ka2 b1B+ Kb3 Qf5 Ka4 Ba2 Ka5 Qe6 Qc6 Qf6 Bc4 Qg7 Qd5 Qh8 Qe8 Ng6 e6 Qe5 Qf7 Nh8 Qfg6 Bb3 Qb5 Bg2 Ka6 Bh3 Qd5 Ba4 Re8 Bc6 Re7 Qd1 Bd2 Qc1 Be1 Qd2 Bf2 Bb7+ Kb5 Bc5 Be3 Ra8 Bf2 Ra1 Bd4 Bd6 Ba7 Rd1 Kb6 Bc5+ Ka5 Ba8 Ka6 Be3 Qd4 Nf3 Nf7 Rb1 Q3g5 Ng3 Nh6 Bd5 Rd1 Nf1 Qg3 Ng1 Qde4 Bc6 Qd5 Bb7+ Kb5 Rb3 Ra1 Rb1 Ka5 Rd1 Kb5 Ba8 Ka6 Bb7+
4R1nr/1q1Q2P1/1b3pK1/1Nq1BnRP/r2P1q2/1p1b2n1/Q2Pp3/2k2NNB w - - 0 1 illegal: No proof kernel
3Nq3/3qP1QQ/b3p1q1/Pb2PR1p/3B1Brn/5pRN/R4P1k/nK1nr3 w - - 0 1 legal: proof: h4 b5 c4 g5 hxg5 a6 b4 e6 d4 Ke7 d5 Kd6 e3 Be7 Bd3 Bf8 Bc2 Be7 Ba4 bxc4 b5 Kc5 b6 Nh6 d6 Ng8 Bb5 axb5 dxe7 Kc6 Kd2 Kd5 Kc2+ Ke4 g4 c5 a4 f5 a5 d5 b7 c3 g6 d4 g5 b4 g7 d3+ Kb3 c2 Ka2 d2 g6 f4 Bb2 c1Q Qe2 d1N Rh5 c4 Qe1 b3+ Ka3 c3 Rh6 c2 Qc3 Na6 b8B Nb4 Rh2 Qd7 Rh4 Nh6 g8R Ba6 g7 Nf5 Rg4 Nh4 Nh3 Kf3 Rg2 h5 Rd8 Rg8 e4+ Qe3 Bd6 c1Q Ra2 Qd3 Rf8 Rc8 Rf5 Rc5 Qd4 Re5 Nc3 Qcd2 Na4 Qe8 Bc3 b2 Nc5 b1B Nb7 Nc2+ Kb3 Bb5 Nd8 Na1+ Ka3 Bc2 Bb8 Bb3 Bc7 B3c4 Rg3+ Ke2 Bb8 Kf1 Bd6 f3 Bb8 Rf8 g8Q Q3c2 Qg7 Rg8 Qh7 Rg4 Bb2 Be2 Qc3 Qdd7 Qd4 Rc5 Qdg7 Re5 Bd4 Ba6 Bc7 Beb5 Bd6 Qd2 Bc7 Qg5 Bb8 Qgg6 Bd6 Rc5 Bf4 Rc2 e5 Re2 Rb2 Re4 Ka2 Re1 Kb1 Ng2 Ng5 Kg1 Ra2 Kh2 Nh3 Nh4
1r1n1N2/2R1pbKP/1QB2PN1/1bn3n1/1P2Q3/1p1r1q2/1p2R1P1/1RB1bk1q w - - 0 1 illegal: No proof kernel
Nq6/2pB1KPQ/5P1b/npBk1pQq/1b1PR1Rn/2P2r2/1N6/4rqnQ w - - 0 1 illegal: No proof kernel
3N4/P2q3b/p2r2kB/KQ1P2nb/r1Nb1R2/PB1rP3/1N1p3p/Rq1nQ3 w - - 0 1 illegal: No proof kernel
4rk1B/p1n1q1r1/3Kp2Q/1r1b3p/1Pq5/PP1RbNPn/1N1qQRR1/6B1 w - - 0 1 legal: proof: h4 g5 d4 gxh4 c3 b5 d5 e6 dxe6 b4 cxb4 Ba6 Be3 Bb7 Bc1 Bc8 e4 d6 e5 Bg7 e7 Kd7 e8R Kc6 e6 Kb6 e7 Kc6 Bc4 Bf8 Be6 fxe6 Ke2 Kd7 Kf3 c5 Ke4 h5 f4 d5+ Ke5 c4 b3 c3 f5 d4 f6 h3 a3 h2 f7 c2 Qd2 d3 Qf4 d2 Qf2 d1Q Bd2 c1Q Bc3 Nh6 Nf3 Na6 Ra2 Bb7 Qe2 Qdd2 Rf1 h1R Rf2 Bd5 g3 Rh4 Bd4 Qc4 Nc3 Nc7 Nd1 Rb8 Nb2 Rg4 Rg2 Rb5 Bg1 Rg7 Rf2 Qc8 Rg2 Qb7 Rd8+ Kc6 Rd7 Rhg8 e8Q Bc5 f8B Be3 Qg6 Nf7+ Kf6 Rh8 Qh6 Ng5 Ke5 Nh3 Be7 Re8 Bf6 Rg6 Bh8 Rgg8 Rd8 Rg7 Ra8 Kd7 Rd8+ Ke7 Rf2 Bc6+ Rd5 Kf7 Kd6 Kf8 Rd3 Bd5 Rg2 Qdc2 Ra1 Qd2 Rf1 Qb8 Rff2 Qd8+ Ke5 Qdh4 Kd6 Qe7+
2K1R2q/pRr1B1nb/Pq2QP2/1p2r2N/3qN1nP/2P5/1kp2b1Q/2N3Br w - - 0 1 legal: proof: e4 c5 g4 f5 exf5 h5 c3 hxg4 Bd3 c4 Bc2 d5 b3 d4 bxc4 d3 c5 dxc2 Ke2 Kd7 Ke3 Kc6 Ke4 Kb5 Ke5 Kc4 d4 b5 f4 g5 a4 Kb3 f6 e6 f5 g3 f7 g2 d5 g4 c6 g3 c7 Bb4 f8B Qe8 a5 Bb7 c8Q Ne7 d6 Be4 d7 Bc5 d8N Bf2 Kd6 e5 Kc7 Nbc6 f6 Nf5 a6 Ng7 Qe2 Bh7 Be7 e4 Ne6 e3 Nf4 Ne5 Nh5 Ng4 Bd2 Rb8 Qe6+ Kb2 Be1 Qg8 Nd2 Rd8 Ne4 Rd3 Qd2 e2 Qf4 Rd5 h4 Re5 Rd1 Qe8 Bd2 e1R Ne2 g1Q Nc1 g2 Qh2 Qa8 Bh6 Rd8 Be3 Rd4 Rd2 Qh8 Kb7 Rd8 Rd7 Rf1 Rc7 Rd7 Bd4 Bg3 Bb6 Qd4 Rg1 Rd1 Re1 Bf2 Re3 Rh1 Bbc5 Ne8 Kc8 g1Q Rb7 Qd6 Rf3 Qb6 Rf5 Qd1 Rg5 Qd5 Rg8 Ng7 Be3 Qdd4 Re8 Bg3 Bg1 Be1 Ng5 Bf2 Ne4 Rc7+
Q5Nn/p1R1NQB1/PkP1r3/qnR3rn/bb2p3/P2q1pP1/B7/Kr3N2 w - - 0 1 illegal: No proof kernel
NQ1B1rRr/R3B3/4Pn2/3P2Pp/1b2k3/1K1b1bqP/Q1p1p1N1/1bQ2n1r w - - 0 1 illegal: No proof kernel
n1br3k/1Q4n1/n2P1QP1/KBpp3N/1P1r2q1/4Rp2/3n1RPb/3NBQ1b w - - 0 1 illegal: No proof kernel
n1b4k/2b1RQ2/Ppn1R3/Nn2R1BN/q2p3K/1n1P1Pp1/2rb2P1/2BQ1r2 w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 axb4 Nc3 c5 Na4 g4 Nc3 c4 Nb1 Qb6 Be2 Qh6 Bd3 Qg5 hxg5 Bh6 Be4 Bg7 Bc6 Bh6 Ba4 Bf8 Bb3 cxb3 a4 Kf7 c4 Kg7 f3 e5 Kf2 h5 Kg3 d5 g6 h4+ Kf2 g3+ Ke3 e4 Kf4 h3 Kg4 b2 d3 h2 c5 d4 c6 e3 c7 b3 a5 e2 a6 e1B Ra2 b6 Ra5 Bd2 Rd5 Ne7 Ne2 Nbc6 Re1 h1Q Re5 Nd5 Na3 b1N Nc4 b2 Na5 Na3 Nf4 b1N Nh5+ Kg8 g7 Bd6 Re6 Nb5 f6 B6f4 Re5 Qe1 Qe2 Qd1 Kh4 Qa4 f7+ Kh7 Qe1 Re8 g8R Rb8 Rg7+ Kh8 f8B Re7 Reg6 Rb7 Qd1 Rb8 Reg5 Re1 Be7 Rf1 Re6 Bb7 Bca3 Nd8 c8Q Bc1 Rf7 Nd2 Qd7 Nb3 Bec5 Bcd2 Bc1 Rc8 Rgf5 Ndc7 Be7 Na8 Bg5 Rc2 Rg7 Bc7 Rfe5 Bc8 Qe7 Qc4 Qf6 Qa4 Rge7+ Kg8 Qf4 Nc6 Qf7+ Kh8
QrQ4n/Bb4RP/2K1Nq1r/1Rp1p1p1/P1B3rP/1n5r/b3PN2/1b3k1B w - - 0 1 legal: proof: f4 a5 g4 d5 c4 dxc4 b4 axb4 f5 h5 gxh5 e6 f6 Be7 fxe7 Kd7 Kf2 Kc6 Kf3 Kc5 Ke4 f5+ Ke5 b5 e8B g5 h4 f4 a4 b3 d3 b2 h6 f3 Bf7 c3 Bg2 b4 Rh3 c2 Ra2 f2 Bd5 f1R Nd2 b1B Ndf3 b3 Bd2 c1R Rb2 Rc4 Nd4 Na6 Rf3 Ba2 Qc2 Ne7 Be3 Rb8 Nh3 Rh1 Nf2 Rh3 Rf5 c6 Bh1 Ng6+ Ke4+ e5 h7 Rg8 Rf6 Nh8 Rg6 Qf6 Rg7 Re8 Rb1 b2 Bd5 Re6 Qc1 Rc2 Bc4 Rd2 Qc2 Rd1 Qc3 Rg1 Qc1 Rd6 Ne6+ Kb4 d4 Rg4+ Nf4 Re6 d5 Bb7 d6 Bc8 Qd1 Kc3 Ba7 Bb7 Qb3+ Kd2 d7 Bc8 d8Q+ Rd6 Nd1 Ke1 Qb7 Kf1 Qa8 Bb7 Qc8 Re6 Rc1 b1B+ Rc2 Nb4 Nf2 Nd3 Rd2 Ba6 Rb2 c5 Kd5 Nc1 Rb6 Nb3 Rb5 Re8 Ne6 Rg8 Rd7 Rg6 Rg7 Rh6 Kc6 Bb7+
1Q1R1r2/3N1QBp/p1b4P/b1nR1BP1/kn1r1p2/1rP1N3/2r1P3/2n1QK1q w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 f4 gxf4 g4 f3 h4 d5 c3 Kd7 b6 Kc6 h5 Kb5 h6 f5 c6 f4 c7 f2+ Kd2 d3 b7 a6 g5 d4 Rh4 Bd7 c8Q Nf6 Bb2 Ne4+ Kc1 Bb4 Bh3 f1R Nd2 Nc6 Qc7 Rb8 Bf5 Ba5 Nc4 d2+ Kc2 Re1 Ba3 Ka4 Ne3 Qe7 Qc1 d1N Rh1 Nb2 Nf3 Nd3 Ne5 Qf7 Rb1 Qh5 Bf8 Nec5 Bg7 Rhf8 Kd2 Be8 Rf1 Qh1 Qf7 Bd7 Rb2 Be8 Qb1 Rc1 Rb3 Rc2+ Kd1 Ne4 Rb5 Bd7 Qc1 Be8 Qd2 Nc1 Ke1 d3 Qd1 Ne7 Rc5 Nd5 Rc8 Bd7 Rd8 Bc6 Nd7 Nc5 Kf2 d2 Re1 Ra8 Rg1 Ra7 b8Q Rb7 Re1 Rb3 Rf1 Na2 Qb1 Ndb4 Rd1 Qe4 Kf1 Qd5 Re1 d1R Qc1 Rdd2 Rd1 Rd3 Qd2 Nc1 Qe1 Qh1+ Kf2 Rd4 Rd3 Re4 Rd5 Qh5 Kg2 Rd4 Kf1 Qh1+
rb2k3/1N1rnp1R/1p1q1Pn1/4r1Pb/1Q5Q/p1PK2P1/3b3Q/1RNB1B1r w - - 0 1 legal: proof: d4 e5 dxe5 g5 h4 b6 hxg5 Nf6 b4 Ng8 a4 Bb7 Be3 b5 Bb6 bxa4 b5 Ba3 Ba5 Bf8 b6 Bc8 b7 Ke7 Bb6 cxb6 Qd2 Ke8 Qc1 Bg7 Qd1 Bf8 Kd2 h5 e4 d5 f4 a5 e6 d4 e7 h4 g3 h3 e5 a3 f5 a2 f6 h2 Kd3 a4 Nd2 a3 Ne4 Qd6 Qd2 Nc6 Qb4 Bg4 Rb1 a1B Nc5 Bc3 Ne2 Bd2 c3 Bh5 Nc1 Ra5 Ne6 Rc5 Nd8 Rb5 b8Q Rd5 Rg1 h1R Qc8 Ra5 Qh3 Rb5 Qh2 Rc5 Ke4 d3 Nb7 Ra5 Qh4 Rb5 Rg2 Rd5 Rh2 Rb5 Qd4 Nb4 Rh3 Nd5 Qb4 Be3 Rh2 d2 Kd3 d1R+ Ke4 Bd2 Kd3 Kd7 e8B+ Kc7 e6 Nge7 Ne2 Ng6 Nc1 Be7 Bc6 Ra8 Be8 Bd8 e7 Kc8 Rh3 Bc7 Rh2 Rc5 Ba4 Bb8 e8Q+ Kc7 Qee4 Rca5 Bc2 Kd7 Qg2 Ke8 Qf2 Re1 Bb3 Re5 Bd1 Rc5 Rh3 Rc7 Qh2 Rd7 Qhf4 Bg4 Rh7 Bh5 Qfh4 Nde7+
B1B1R3/3P1Q2/b1RP4/b1p2P1q/1QP1rrk1/nNnp1n2/N1R2pb1/b2K4 w - - 0 1 illegal: No proof kernel
2RB4/PN2qBn1/5p1P/PQ3p1r/1Bb3rk/2N2PRp/4b2b/nKQn2b1 w - - 0 1 illegal: No proof kernel
rRr2bRB/PN2pnP1/N1Qpnknn/8/Q2K2B1/1r1P3b/N3qPp1/8 w - - 0 1 illegal: No proof kernel
QKN2q1B/bQ1B1q2/rr3R2/2PR2Qn/2pNPp1P/p5bq/5P1k/1q1n4 w - - 0 1 illegal: No possible last move
3Q1qb1/3q1k1P/3Q1PpR/B1bnp1QN/3pn1N1/1nnKP3/7P/r3rBR1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 b5 axb5 f5 e3 f4 Kd2 f3 Qe2 fxe2 b4 e1N f4 a5 c4 e5 f5 d5 c5 d3 c6 a4 h6 a3 b6 a2 b5 d4 h7 Bc5 b7 Qb6 c7 Qa7 b6 Nd7 b8Q Ngf6 b7 Rf8 Nc3 Nd5 Nd1 Kf7 Ne2 N7f6 Nf2 Nc2 Ng3 Be6 c8Q Ncb4 Ba3 Nc3 Qd6 Nbd5 b8Q Qd7 Ng4 Rg8 Rb1 a1N Nh5 Rf8 Bb4 Nfe4+ Ke1 Ra7 Qd8 Nb3 Rg1 Ra1 Ba5 Rg8 Qg5 g6 Rg3 Rc8 Rh3 Rc6 Qbd8 Rc7 Bg2 d2+ Kf1 Rc6 Re1 d1Q f6 Qc1 Rh4 Qa3 Rh3 Na2 Ke2 Nac3+ Kd3 Ra6 Rg1 Re1 Bf1 Qb4 Bc7 Raa1 Ba5 Qa3 Ng3 Qb4 Rh6 Qb8 Nh5 Qbc8 Q8b6 Qf8 Qbc7 Ke8 Qcb6 Bg8 Qd8+ Kf7
1n1N2R1/4b1pP/2bpP1NR/4BkrK/1PR1np2/q3r1q1/PQ3QB1/n4n2 w - - 0 1 illegal: No proof kernel
3r3B/Q3P3/PR2p1rk/2BnRp1N/1q3b1P/1p1qQnq1/4KP1q/1b2N2Q w - - 0 1 illegal: No proof kernel
1nqN2Nr/nQ1PKB1q/2P1nrRp/8/1Q2Rb1P/n1P2k1p/1pb2BN1/8 w - - 0 1 illegal: No proof kernel
2q5/b2P1PRn/n1Q2Npk/1qPr1b1n/4R1B1/1BK1pn2/Q1Q1p1P1/1N2r3 w - - 0 1 illegal: No proof kernel
1r3rr1/2Pb4/Bqr2Q1K/1Pn2Pqp/1P5Q/1k1nQ1p1/p2RNb2/2R1B1N1 w - - 0 1 illegal: No proof kernel
2k1n3/1qP1Bbpr/N4P2/np6/1NnpqRPQ/BP5n/2R1bK1R/3Q2r1 w - - 0 1 legal: proof: e4 b5 a4 f5 a5 h5 g3 e6 Nc3 h4 Bg2 h3 Nb1 hxg2 exf5 c5 d4 cxd4 Bd2 Bc5 Bc1 Bb6 axb6 Rh7 Nc3 Rh3 Nb1 Rh8 c4 d5 f4 Kd7 h4 a5 b7 d3 f6 d4 f7 d2+ Kf2 a4 f8R a3 b3 e5 c5 a2 g4 e4 h5 Rh7 f5 Nc6 b8B Na5 h6 Qe7 Rh2 Nf6 Nc3 Ne8 Nge2 g1N f6 Nf3 Na4 Ng5 c6+ Kd8 Bg3 Be6 Ba3 Qb7 Bgd6 Bf7 Nec3 Kc8 Be7 Ra7 Rb1 a1N Nd5 Nc2 Nb4 Ne3 Nc5 Nec4 Nca6 Ra8 c7 Ra7 Rc1 e3+ Kg3 e2 Kf2 Ra8 Rc2 Ra7 Rh8 Ra8 Rh1 Ra7 Rf1 e1Q+ Kg1 Qee4 Rf4 Ra8 Kf2 Ra7 Qe2 d1B Qd2 Bf3 Qd1 Be2 Qe1 Ra8 Nc5 Nc6 Bc1 Ra1 Ba3 N6a5 Nca6 Rd1 Qd2 Re1 Qd1 Rg1 Rf8 Rh8 h7 Rg8 h8Q Nb2 Qh5 Rh8 Qh2 Rh6 Rh8 Nbc4 Qh1 Rg6 Rh3 Rh6 Qh2 Rh7 Qg3 Bd3 Qh4 Be2 Rh2 Nh3+
r1n1B2Q/PN2bR2/3r1b2/2Q2K1n/1q1P2PP/1Np1pRb1/3p3k/1bB3Rq w - - 0 1 illegal: No proof kernel
bQ1rR1q1/P1bR2Pk/1b1K3p/5rpP/3bQRNN/PB3q2/p4n2/n3B3 w - - 0 1 illegal: No possible last move
3n1Q2/QB1n4/Q1pP1Kpq/2b1p3/R2bPNq1/P2P2r1/7N/2kbBnRq w - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 b5 h4 a5 b4 axb4 h5 Ra6 h6 Rf6 Qc2 Rf7 Qa4 g6 Qd1 Rg7 hxg7 fxg4 f4 Kd7 Kf2 Kd6 Ke3 Kc5 Ke4 Kc4 Ke5 h5 f5 c6 a3 b3 f6 g3 f7 b2 Ra2 g2 Nc3 b1N Rh4+ Bg4 Qe1 Kb3 e4 b4 d3 Nd7+ Kf4 Nh6 Kg5 Qc8 g8Q e5 Be2 Bc5 f8Q Nd2 Qgg7 Nf1 Ra1 Kc2 d6 b3 Nf3 g1B Nd5 b2 Nh2 b1Q Nf4 Bgd4 Bd2 Qc1 Rb1 Bf3 Rg4 h4 Rg1 h3 Rb4 Bh5 Ra4 Nf7+ Kh4 Kb1 Bg4 Nd8 Kg5 Kc2 Be6 Bd1 Bc4 Kb1 Ba6 Rh4 Bb7 Rg4+ Kh6 Kc2 Qh7 Rg2 Kg7 Rg3 Qe3 Kb2 Be1 Qd2 Qhg8 Kc1 Qf2 Qe3 Qb3 Qd2 Qb6 Qe3 Qa6 Qd2 Nf3 h2 Qe3 h1Q Nh2 Nb8 Qf2 Qg4 Kf6 Qe3 Qa2 Qd2 Qb3 Qe3 Qbb6 Qd2 Qba7 Qe3 Nh5 Qh6 Nf4 Nd7+
7n/1B1QP3/N2rbnp1/3P2p1/1Rn1k2q/2nR1pB1/2N1PP1b/1Q2QnKb w - - 0 1 illegal: No possible last move
2nR2B1/Qbb5/1pq1n1nR/P2P1Kn1/1PpbQ3/2r2P1p/k3n2R/3N2BN w - - 0 1 illegal: No proof kernel
2Brb3/2p1Q2B/p1R3pb/3NK3/P1bB2rP/1nq3rN/1PR1P3/r4krQ w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 bxc4 d4 Nc6 e6 Ne5 dxe5 hxg4 Kd2 Ke7 Ke3 d5 Kd4 f5 h4 a6 a4 c3 Rh3 f4 Qb3 g3 Bd2 f3 Qc2 f2 Be1 g2 Qe4 c2 Re3 c1R Qf3 Nf6 Raa3 Nd7 Bc3 Nc5 Ba5 Bd7 Bc3 Be8 Rd3 Rg8 Rd1 Nb3+ Ke3 d4+ Kf4 d3 Qd5 d2 Bd4 Rc3 Rc1 d1B Rc2 Rg3 Nh3 g1R Qh1 Qd7 Ke4 Rd8 Nc3 Qc6+ Kf5 Rg4 Ra1 R1g3 Rac1 Qc4 Bg2 f1R+ Bf3 Rfg1 Bb7 Re1 Bc8 Rgg1 Na2 Qc3 Nb4 R4g3 Rd2 Bc2+ Kf4 Be4 Rdc2 Bd5 Kf5 Qd2 Rc6 Qc3 Rc2 Bc4 Kf4 Ra1 Kf5 Rh8 Ke4 Rh6 Kf5 Rhg6 Ke4 R6g4+ Kf5 Bf7 Nd5+ Ke8 e7 Bh5 Nb4 Kf7 e8B+ Ke7 Bed7 Be8 e6 g6+ Ke5 Bh6 Nd5+ Kf8 e7+ Kg7 Rc5 Be3 Be6 Kh6 Bg8 Kh5 Bh7 Bh6 Rc6 Rg5+ Ke6 Kg4 Kf6+ Bd7 e8Q Qb4 Ne7 Qc3 Nf2+ Kf4 Qf8 R5g4 Qg7 Be8 Qf8 Rf3 Nd5+ Kg3+ Ke5 Rd3 Nh3 Re3+ Qe4 Rf3 Qb4 Kg2 Qa3 Kf1 Qe7 Rd3 Qh1 Rdg3
1r1qq1RR/1k2qqP1/1q4b1/p6K/QnN1P1Pp/1N2B2P/2B1pb1Q/3Q3n w - - 0 1 illegal: No possible last move, all moves rejected
NN1n2r1/3Bp2q/pQb1Pq2/1nR4Q/k1b3P1/P3Rpq1/q1NKq2P/4B3 w - - 0 2 legal: proof: g4 b5 c4 bxc4 Nh3 h5 Ng1 hxg4 d4 c5 Nf3 c3 Qb3 a6 Qd1 c4 Ng1 Ra7 Bh3 Rb7 Bf1 Rc7 Nf3 g5 Bh3 g3 Nfd2 g2 Nf3 g1Q+ Bf1 g4 Bd2 g3 Qa4 g2 Qd1 Bg7 Bc1 Rc5 dxc5 Bf6 Ne5 Bh4 Nf3 Bg3 fxg3 Rh4 Qd3 Rh6 Qd1 Rh8 b4 f5 e4 d5 g4 Kd7 a3 Kc6 e5 Kb5 e6 d4 c6 d3 c7 c2 Nfd2 f4 Nb3 d2+ Ke2 c3 Bb2 c1Q Na5 c2 Bc3 Nc6 Nb3 Nf6 Nd4+ Ka4 b5 Ne8 b6 Qd5 b7 Rg8 b8N Bd7 c8Q Nc7 Qb7 Qa2 Qb6 Nb5 Qe1 Nd8 Qh4 Bc6 Qh5 d1B+ Kd3 f3 Be1 Rg6 Nd2 Qcb2 Nc4 c1Q Nc2 Qh6 Rc1 Qh7 Kd2 Rg8 Bd3 Be2 Bg6 Rg7 Be8 Rg8 Bd7 Qf2 Rf1 Qg3 Rf2 Bd3 Re2 g1Q Re3 Qbg7 Qd4 Qf6 Nb6+ Kb3 Na8 Qf1 Qb6 Ka4 Rb1 Be2 Rbb3 Bc4 Rbc3 Bb3 Rc5 Bbd5 Qb7 Bc4 Qb6 Qe2+
2b2Qq1/1Nk1b1r1/1q2R1r1/2p1N1Bp/PPPq4/2Rn3K/q3P1Qp/3q1B1Q w - - 0 1 illegal: No proof kernel
Nn1rq3/3R2P1/2bP1Rp1/1qB3Q1/Qbp3Pb/b1P2b2/rkB4p/5QKN w - - 1 2 legal: proof: f4 b5 e4 Nc6 h4 Ne5 a4 Ng6 axb5 d6 e5 dxe5 h5 exf4 Ra6 f3 Ra1 Nf4 h6 g6 Nc3 Ne6 Nb1 Ng7 hxg7 Qd5 Bd3 Qd6 Bf1 Qd8 Kf2 Kd7 g4 Kd6 d4 Kd5 b4 c5 b6 f5 b5 a5 b7 e5 b8Q h5 c3 f4 b6 h4 b7 e4 Bd2 e3+ Ke1 h3 Ba6 f2+ Kf1 a4 Be1 a3 Qd2 a2 Nf3 Ne7 Qd3 Nc6 Nh2 Qe8 Na3 Bd7 Qa7 Nb8 Rd1 a1B Nb5 Bc6 Bd2 Bb2 Nc7+ Kd6 d5 Ba3 Bc4 Ke5 Qe2 Ke4 Bb3 c4 Qf3+ Kd3 Qa4 Bfb4 Qg2 Ra6 Na8 Ra5 d6 Bf3 Rb1 Qb5 Bc1 Rd8 Bb2 Ra6 Bc2+ Kd2 Re1 Nd7 Ba1 Bc1 Bd1 Bd5 Qg1 Bc5 Qb4 Ra2 Qb3 Bb2 Qa4 Kc1 Nf3 Kb1 Ng5 Bc1 Ne4 Bb2 Ke2 f1B+ Kf3 Bc1 Bb2 e2 Ba3 Ka1 Bb4 Ba3 Bc2+ Kb2 Rh2 Bd4 Rf2 Bc5 Ba5 Bcb4 Bb6 Qa6 b8Q Bc6 Qa7 Nb8 Qe7 Qa5 Qg5 Qb5 Rh2 Bg2+ Kf2 f3 Ng3 Bh1 Bd4 Bg2 Bc5 Bh1 Rf1 Bg2 Nh1 e1B+ Ke3 Bh4 Re1 Bf1 Rf2 Bd3 Rff1 f2 Qg2 Be8 Kf3 Bc6+ Re4 Be2+ Ke3 Bf3 Re7 Bd1 Rd7 Be2 Rc1 f1Q Qg1 Qf8 Rf1 Qa6 Rf6 Qb5 Qf1 Bef3 Qe5 Bg5+ Kf2 Bh4+ Kg1 Qe8 Qg5 h2+
N1B1R3/b2rp3/1Nq1R1pP/p1Pbbk2/P2b2q1/2B1Qr2/3Pn3/1KbQ1R2 w - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 g5 d5 g6 Na6 cxd5 c4 b4 Nc5 bxc5 hxg6 Bd3 g5 Bf1 g4 a4 Kd7 f4 a5 h4 b5 d6 Ke6 h5 c3 d7 e3 h6 b4 Bd3 e2 Nf3 b3 Rh3 g3 Ba3 c2 Bb5 c1B Rh2 b2 Bc4+ Kf5 Bb4 g2 Nc3 b1Q Ne5 g1B Nb5 g6 Nc7 Bg7 Ba6 Bb7 Bc3 Bd4 Nc4 Bge5 Nb6 Qe8 d8R Qc6 Re8 Rd8 Nca8 Nf6 Rf2 Rd6 Rf1 Qb4 Rb1 Nh5 Ra1 Kg4 f5 Rf8 f6 Rd7 f7 Ng3 Rf6 Bb8 Re6 Kf5 Rb1 Ba7 Ra1 Rg8 Rb1 Rg7 f8Q+ Rf7 Qh8 Be5 Qg8 Qg4 Qg7 Bc7 Qd4 Be5 Qe3 Qc7 Rb3 Bd5 Rb1 Qc6 Bc8 Nh5 Kf2 e1B+ Kf1 Bh4 Ra1 Bhf6 Ke1 Bd4 Rb1 Bfe5 Ra1 Qg3+ Ke2 Qg5 Kd3 Ng3 Kc2 Ne2 Rb1 Ba3 Rc1 Qg4 Kb1 Rf6 Qb3 Rf8 Rh1 Bb2 Qd1 Bc1 Rf1+ Bf4 Re5+ Kf6 Re6+ Kg5 Qg3 Bfe5 Qd3 Rf3 Qe3+ Kf5
Q1N5/p4qK1/5B1p/2pn2bP/R1P1PQ2/r1n1N1r1/rnB2qPk/r1R1Q3 w - - 1 2 legal: proof: d4 c5 a4 g5 f4 gxf4 a5 e5 a6 exd4 axb7 d6 bxc8Q Na6 Qb7 Rc8 Qa8 Rc6 Kd2 Kd7 Kd3 Ke6 Ke4 f5+ Kd3 Ke5 h4 h6 b4 f3 e4 d5 c4 f2 h5 f4 b5 f3 b6 Nf6 b7 Rg8 b8Q+ Nc7 Qb4 Rg3 Qbb7 Nb5 Qd7 Qe7 Qae8 Ra6 Ra3 Nc3 Qa8 Qf7 Qe1 Be7 Nd2 Kf4 Qd6+ Kg4 Ra1 Ra3 Bb2 Bd8 Be2 f1Q Nh3 Qf2 Nf1 Be7 Kd2 d3 Nf4 d4 Ng6 Nfd5 Rg1 Bf6 Ne7 Bg5+ Ne3+ Kh4 Nc8 Ra2 Kc1 d2+ Kc2 d1N Kd2 d3 Qdb8 Ra6 Ra4 Ra5 Ba1 Nb2 Rf1 Rb5 Qe5 Rb3 Qf6 Ra3 Qe5 Qg1 Bd1 f2 Bc2 Ra2 Qe2 Ra3 Rc1 f1R Qe1 Rf6 Qc7 Rb6 Qe5 Ra2 Qd6 Rb3 Qf6 Rba3 Qf3 Ne2 Qf6 Qf2 Qf3 Nd1 Bf6 Nb2 Qf4+ Rg4 Qf5 Kg3 Qf3+ Kh2 Qf4+ Rg3 Bc3 Nb4 Qf3 Nd5 Rb1 Ndf4 Nf5 Qf1 Ke3 Rg4 Qff2 d2 Kf3 d1R Ne3 Rh4 Ra1 Rh3+ Kg4 Qc7 Kf5 Qf7+ Bf6 Nd5 Qf4+ Rg3 Rb1 Qf2 Ra1 Qe6+ Kg6 Nec3 Kg7 Qe8 Qe2 Rd4 Re1 Rd1 Qf1 Rda1 Rc1 Qe6 Qe1 Qf7+
1qB2q1n/2k1p3/2BbP1n1/1R1P2qN/p2qb2r/P1N1PR1Q/b1K2Qp1/7N w - - 1 2 illegal: No possible last move, all moves rejected
Qqqnb2B/p2n2Qq/2b1PrP1/P1b5/1p2pq2/3B2Nk/3KP3/RN1R3N w - - 0 2 legal: proof: f4 d5 c4 e5 h4 c5 b4 g5 Rh3 gxh4 Rh1 b5 Ba3 Na6 Bc1 dxc4 bxc5 e4 Rh2 Rb8 Rh1 Rb7 Qc2 Re7 Qd1 Re5 fxe5 Bg4 Qb3 Bd7 Qd1 Bc8 d4 Kd7 g4 Ke6 a4 h5 a5 f5 g5 h3 c6 b4 c7 h2 Qa4 c3 Qc2 h4 Bf4 h3 Be3 f4 d5+ Kf5 d6 Kg4 e6 f3 d7 f2+ Kd1 Nh6 Bd4 Bc5 Qd3 c2+ Kd2 Bb7 c8N Nb8 Qc3 Nf7 Bg2 f1Q Nd6 Rf8 Bh8 Bc6 Nf5 Qe8 d8Q Nd7 Qc8 Nd8 Qg7 Rf6 Ng3 Qf8 Qa8 Qf4+ Ke1 Kh4 Bf3 Q8d6 Bh5 Qb8 Be8 Kg4 Na3 Kh4 Rd1 c1Q Nb1 Kg4 Nf3 Qc4 Nh4 Qc2 Rf1 h1B Nhf5 Bf3 Nh1 h2 Nfg3 Kh3 Rg1 Bh5 Rf1 Bf7 g6 Nf8 Bd7 Be8 Bc8 Nd7 Ba6 Kg4 Bd3 Kh4 Nf2 h1Q Rg1 Qh2 Nfh1 Kh3 Rf1 Qc4 Rg1 Qh4 Kd2 Qh7 Na3 Qf2 Ra1 Qa6 Rgd1 Qac8 Nb1 Qff4+
1k2Bqn1/2rQ4/1q1PNrp1/1R1p2B1/1Q1P1pb1/3q2P1/1P2R2r/nqB2KN1 w - - 0 2 legal: proof: f4 d5 c4 h5 a4 e5 c5 exf4 g3 b5 axb5 Bd6 cxd6 h4 Qb3 h3 Qf3 Rh6 Qf2 Rh8 Qg2 hxg2 h4 Kd7 e4 f5 e5 c5 b6 a5 b7 a4 d3 c4 h5 f3 h6 f2+ Ke2 f4 h7 c3 Rh4 g6 Na3 c2 Rh1 Qf8 Nb5 a3 Nc7 a2 Rh2 Nc6 b8Q Na5 Qb4 Nb3 e6+ Kc6 e7 Bg4+ Nf3 g1Q Ne6 Rd8 e8Q+ Rd7 Qd8 Rf7 d4 Rf6 Qa8+ Kd7 Qa7+ Kc8 Rg2 Qh1 Qaa4 Qh4 Rh2 Qg5 Bh3 Qf5 Kf1 Qd8 Ng1 Qb6 Qd7+ Kb8 Rb1 a1Q Rg2 Qa4 Ra1 Qa8 Ra5 Na1 Rb5 Bd1 Be3 c1R Bg4 Rc5 Bc1 Qb1 Bf5 Bg4 Bc2 Qa6 Ba4 Qc8 Rh2 Qf8 Rg2 Nh6 Rh2 Rc7 Rg2 Rg8 h8B Rg7 Rh2 Rh7 Bg7 Ng8 Bh6 Rh8 Bg5 Qb7 Rh7 Qb6 Re7 Rh4 Nc5 Rh2 Re2 Qd3 Ne6 Rf5 Qd8+ Ka7 Ra5+ Kb7 Be8 Rh8 Be3 Rh5 Rb5 Rf6 Qd7 Kb8 Kg2 Bh3+ Kh2 f1Q Bd2 Qfb1 Bc1 Bg4+ Kg2 Rh1 Kf1 Rh2
q1K3b1/1Bp1P1r1/Np1bp2P/3NRr1P/R1Q4B/4Pr1q/n3rQRq/1k6 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 dxc4 b4 axb4 f5 h5 gxh5 e6 f6 Kd7 Qa4+ Nc6 Qd1 Nce7 fxe7 Kc6 Qc2 Kd6 Qd1 Kd7 Kf2 Kc6 Kf3 Kc5 Kf4 Kd4 h4 f5 a4 g5+ Kg3 b6 a5 c3 d3 f4+ Kg4 c2 h6 b3 a6 f3 h5 f2 a7 b2 Ra6 Rh7 Bg2 f1R Ra5 Ba6 Rh2 Bg7 Nd2 Kc3 d4 b1Q d5 Rf3 d6 Qb3 d7 Be5 Qe1 Qb8 d8Q Rg7 Qf2 Bd6 Re5 Bd3 Nh3 Bh7 Nf4 Qb7 Qd7 Rf8 a8R Rf5 Ra4 Qa7 Qe8 Qa3 Ne4+ Kb3 Qd7 Ka2 Qc6 Kb1 Nd5 Qc3 Bb2 c1R Nc5 Rc2 Na6 Rd2 Bc1 Ra2 Bf4 Rc2 Bg3 Nf6+ Kh3 g4+ Kh4 Qe3 Qc4 Bg8 Bh1 Qd3 Rg2 Ne4 e3 Re2 Bf4 g3 Bg5 Nc3 Kg4 Rh7 Bf6 Na2 Bh4 Rf8 Kg5 R8f5+ Kg6 Qd4 Bf6 Qh4 Bg5 Qh3 Bf6 Rh8 Kg7 Rh7+ Kf8 Rg7 Ke8 Rfg5 Kd8 Rgf5 Rh2 g2 Bh4 g1Q Rg2 Qgh2 Kc8 Rf6 Rg4 R3f5 Bf3 Rff7 Rg2 R7f6 Nf4 Rff7 Bb7 R7f6 Nd5 Rf3 Re4 R6f5 Re5 Qa8+
2Rr3n/1bp5/qN1p3Q/1pn4b/2Kb1P2/qP1PR1BB/2N2bPR/Qq3k2 w - - 0 2 illegal: No possible last move, all moves rejected
3QN3/qB1n3P/3p2Rq/B3P1q1/bQ1BnqPk/4Np1n/2pP1rR1/2bK4 w - - 0 1 illegal: No possible last move, all moves rejected
n1Bb3R/r1b3K1/1P1P1pN1/1rp1b3/R5bN/P1Pk1bpQ/5n1B/R3Qr2 w - - 0 1 illegal: No proof kernel
5b2/RN2n1N1/p1bK2b1/1b1P1P2/4bN2/3q1pRr/Pp2BP1Q/1Qb1k1Bq w - - 0 1 illegal: No proof kernel
1bQbb3/2B4b/B1p1K1rP/p1R3Q1/1qRB3b/1Pq1N1N1/P1Pk2p1/2r1r3 w - - 0 1 illegal: No proof kernel
3n2Q1/3NR1P1/p4p2/P1rQ1Br1/2pnP1P1/qp4kb/b1BNnb2/1KR4Q w - - 0 1 illegal: No possible last move
2B2K2/1r2Pbn1/1p2Nppq/4B1PQ/1NnP4/RB2rR1p/2rPbQ2/3k3n w - - 0 1 legal: proof: h4 d5 f4 e5 b4 exf4 h5 a5 c3 axb4 h6 d4 cxd4 g6 Kf2 Be6 Ke1 Bg7 hxg7 Bc8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 Kc4 g4 h5 a4 c5 a5 b6 g5 b3 a6 f3 a7 h4 Nc3 b2 Rh2 b1B e4+ Bd3 Ra5 f2 Ra3 f6+ Kf4 h3 e5 Ne7 g8B+ Be6 Qh5 Be2 Nd5 Nd7 Nb4 Qf8 Ke4 Re8 a8Q Bf7 e6 Rh7 Rg2 Qh6 Rgg3 Rg7 Rgf3 Nf5 Qb8 Rh7 Qg3 Ne5 Bg2 f1N Qf2 Ng7 Bb2 Kb5 Kd5 c4 Kd6 c3 Bc1 Kc4 Bh1 Rb8 Ke7 Rb7+ Kf8 c2 e7 Ng3 Bb2 c1R Bg2 Rc2 Bh1 Bd1 Ne2 Rh8 Bg2 Nh1 Nf4 Be2 Ne6 Rh7 Ra6 Rh8 Ba3 Rc3 Ra4 Kb3 Bf1 Re3 Ra7 Bd1 Ba6 Nc4 Ra8 Be2 Ra7 Rc7 Bc8 Rc5 Na2 Rc7 Bd6 Kc2 Ra3 Rb7 Be5 Kd1 Nb4 Be8 Bd7 Nb2 Nf4 Rh7 Bc4 Bf7 Ne6 Rc7 Bb3+ Rc2 Bb5 Nc4 Ba6 Bg8 Bb7 Rh8 Ba6 Nf5+ Ke8 Bf7+ Kd7 Rb8 Bc8 Rb7+ Kd8 Bg8 Ke8 Ng7+ Kf8 Bf7
2q5/Q1p3Q1/p4R2/1B4P1/PrnBBP2/1b1rP2N/Kp1RpnNr/b1k4b w - - 0 1 illegal: No proof kernel
1nQ4N/rP1P2R1/p2np1b1/Q1Pkqp2/3r4/3B1P1R/1K1n1Nrp/b2Q1B2 w - - 0 1 illegal: No possible last move, all moves rejected
n3b3/bPpQp2n/1kp1Rrq1/4PB1N/P3rQ1n/2B2b2/1NBp1RP1/3K4 w - - 0 1 illegal: No proof kernel
2n3R1/N1bB4/3knbPp/B2Pq3/rNpr2p1/1q2P1PR/3r1pN1/K2Q1Q2 w - - 0 1 illegal: No possible last move
1N5q/3p1N1R/Pk2P3/1p1B1b1K/PQ1n1p2/4p2B/nP1QnrRr/b1q1R3 w - - 0 1 illegal: No proof kernel
brqr1R2/1Qp2Bp1/K2b4/3p4/1QP5/n1p2q2/P1BkPPR1/Qn1Nq2N w - - 0 1 illegal: No proof kernel
2QB2N1/1p3k1P/4pb2/R1Nr1Q2/p1qr1nR1/2p1P2n/q1P2qbP/4KB1Q w - - 0 1 illegal: No proof kernel
knqb4/p1B5/pnR1P1q1/3p1qp1/1Q4bP/NK1N1N1R/1Pr2PB1/Q4r2 w - - 0 1 illegal: No proof kernel
1K5N/pP2pP2/1q1n1P2/q2b2pB/2pr1RQ1/r3R1R1/PN2qn2/Q2b2Bk w - - 0 1 legal: proof: g4 b5 h4 f5 gxf5 d5 e4 dxe4 c4 bxc4 h5 g6 h6 Bg7 hxg7 Bd7 Ne2 Be6 Ng1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 c3 f4 h4 b5 h3 b6 c6 b7 c2 f6 h2 f5 e3 f7 e2 f6 e1Q Nh3 Be6 Rg1 h1B Nf4 Qe2 Rg3 Bed5 Na3 Nh6 g8Q Bhf3 d3 Rh7 Be3 c1Q Bg1 Nd7 Bh3 Rc8 Bg4 Ne5 Bh5 Qb1 Qg7 Qa5 Nc4+ Kc7 Qc1 Nhg4 Nb2 Kd6 Qe1 Nc4 Qc3 Qbc2 Re1 Qb3 Qc1 Rf8 Qa1 Nf2 Qg8 Rb8 Qc8 g5 Qg4 Qbb4 Ng6 Rd8 Nh8 Rd7 Bg6 Rh3 Bh5 Qed2 Re4 Bd1 Rf4 Qe2 Re3 Kc7 Rg3 Kb6 Re3 Nd6+ Ke5 c5 d4 Be4 d5 c4 Ke6 Kc5 Rg3 Kd4 Re3 Qbb6 Rg3 Rc7 Re3 Rc5 Kd7 Rh4 Rg3 Rb5 Re3 Rb3 Rg3 Ra3 Re3 Nf5 Kc8 Nd6+ Kb8 Ke5 Rg3 Kd4 Rg2 Ke3 Rg3+ Kd2 Re3 Ke1 Rg3 Kf1 Re3 Ne8 d6 Bd5 d7 Nd6 d8R Qa4 Qe6 Kg2 Qg4+ Kh1 Rg3 Nb5 Rd6 Qaa5 Re6 Nd6 Ree3 Rh3 Rg2 Rf3 Rg3 Rd3 Re5 Rd4 Re6 Rfd3 Ree3 Ra3
R7/nkB1QP2/3pB2p/b1n5/NP4Qp/3qN2p/1KNPR1bP/4rrrr w - - 0 1 illegal: Other
1NnN4/Q1p3B1/1r3p2/3K3Q/b1NnbPP1/P1kP1bRp/1pB2r2/2bq1R2 w - - 0 1 illegal: No possible last move, all moves rejected
3RQqN1/1P3n1q/1kPQ2pn/R3N1P1/q4Kp1/pP1p1bn1/3rr3/1B2BB2 w - - 0 1 illegal: No proof kernel
B2R1K2/Q2pP1rb/N4k2/3npqp1/2Rn1q2/P1B1p2N/3RPP1n/q3Qr2 w - - 0 1 illegal: No proof kernel
3n1q2/N4Ppr/1bB2R1N/5p1Q/b1pR1Bbn/2q1Q2P/2P1p1P1/k1Kn1B2 w - - 1 2 illegal: No proof kernel
Q5qN/p2N1P2/RpnPkb1K/rP1nqpb1/Ppq1Bn2/B3R3/1Q6/4Q3 w - - 1 2 illegal: No proof kernel
1Kn4k/p1N1RR2/P3Q1r1/1rPp2Q1/1N2p3/Bb1P1pr1/4rPqB/2rbR3 w - - 0 3 legal: proof: e4 d5 g4 c5 b4 cxb4 e5 f5 Ba3 h5 Bc1 e6 Bb5+ Nc6 Bd3 f4 Be2 Bd6 exd6 Nce7 Bf3 Nf5 gxf5 Kf8 Be2 Ke8 Bg4 hxg4 Ke2 Kf8 Kd3 g5 Kd4 Kg7 Ke5 b5 a4 g3 c4 g4 h4 b3 d3 b4 d7 g2 Kd6 e5 h5 b2 h6+ Kh7 a5 e4 a6 b3 f6 g3 f7 Qf8+ Kc7 Ne7 d8Q Bg4 c5 Rg8 Na3 b1B Nh3 g1R Nc2 g2 Nb4 b2 Ng5+ Kh8 h7 Rb8 Ne6 Nc8 Qg5 Re1 Qb3 Qh6 f8R g1R Rf7 Rg6 Qd1 Bh5 Qdg4 Bc2 Rh3 b1R Ba3 Rb2 Rh4 Re2 Re1 Qg7 Rh3 Rb3 Re7 Rb5 Rf3 Rc3 Qh3 Ra5 Kb8 Bb3 Nc7 Rg3 Qhf5 Rc1 Qe6 Qg8 Re8 Kg7 h8B+ Kh7 Be5 Rb5+ Qb6 Bg4 Bd6 Kh8 Re7 Qh7 Kb7 Qh2 Kb8 Ra5 Qc6 Qg2 Qd7 Bh5 Qe6 Rb5+ Ka8 Rd2 Rfe3 Rh3 Rg3 Bhd1 Rf3 Ra5 Kb8 Rdc2 Rg3 Re2 Rg4 f3 Bh2 Rg3 Rf4 Rh6 Rf6 Rg6 Rff7 Rb5+
1Q6/2nbpB1Q/1b1NP2R/2Q3rr/pp2qbN1/PprRBP2/5rP1/2K2k2 w - - 0 2 illegal: No possible last move, all moves rejected
bnB1B3/KR2p1Q1/qP2Pp1b/2Qb2p1/1npb2nN/1PNr3N/3k1P2/4R3 w - - 1 2 legal: proof: b4 c5 d4 h5 c4 a5 g4 b6 Bg5 Ra7 gxh5 Rc7 Bh6 Rc6 Bf4 Rg6 Be5 Rg3 Bd6 Rb3 axb3 cxd4 c5 Nh6 c6 Ng8 Bc5 bxc5 Kd2 g5 Kd3 d5 e4 a4 h4 c4+ Ke2 d3+ Ke3 a3 Kd4 d2 Kc5 a2 e5 f6 c7 Kf7 Kb6 Ke6 h6 Kf5 e6 Ke4 b5 d4 h7 d3 h5 Qd7 Qc2 d1B Bg2+ Bf3 Ka7 Nh6 b6 Ng4 h6 Qb5 Nh3 Bb7 c8B Ba8 Nc3+ Kd4 Rhf1 d2 Qf5 d1N Qc5+ Kd3 Re1 Bfd5 Bh1 Rg8 h8Q Kd2 h7 Bh6 Qg7 Nde3 h8N Nc2 Ng6 Rd8 Nh4 Nb4 Be4 Rd6 Bg6 Rd8 Rac1 a1B Be8 Bb2 Ra1 Bdb7 Re5 Rd3 Rd5 Bc6 Rd7 Bd5 Re1 Ba1 Rb7 Bb2 Nd1 Bd4 Nc3 Qa6+
b1KR4/P1B2N1r/p4P1n/1p1QRb2/1rbP2Br/kP2b1pN/p3qQN1/8 w - - 0 1 illegal: No proof kernel
r1kb2R1/BpNqP2B/b4p2/1P1nN3/2Qp2Qb/3r2pR/3N1PP1/bKr5 w - - 1 3 legal: proof: d4 d5 h4 g5 a4 e6 c4 Qd7 a5 Qa4 Nd2 Qa2 Nb1 Nc6 Nd2 Nd8 Nb1 g4 a6 e5 cxd5 exd4 Qd2 Ne6 Qd1 Ng5 hxg5 Qxa6 Rh3 Qa4 Rh1 Qa2 Kd2 Kd8 Kc2 c5 e4 h5 g6 a5 g7 f6 e5 h4 e6 a4 d6 c4 d7 c3 Qf3 a3 Qf5 h3 Qf4 h2 Nd2 Qd5 b4 a2 Ba3 Rh3 Bd3 Be7 Bh7 Rd3 Ngf3 g3 Qg4 Qf5 Rae1 a1B Kb1 Qb5 Ne5 c2+ Ka2 c1B Kb1 Kc7 d8N Bd7 Re4 Kc8 Re2 Nh6 g8Q Nf5 Re4 Ne3 Rf4 Bc5 e7 Bb6 Ne6+ Bd8 Nc7 Nd5 Rf5 Be6 Rg5 Qd7 Qf7 Bf5 Rg8 Bg6 Qfe6 Be4 Qc6 Bf3 Qc4 Be2 Re1 h1R Rd1 Rh5 Rh1 Rf5 Rh3 Rff3 Nf1 Bg5 Nd2 Rc3 Qb3 Bb5 Qc4 Ba6 b5 Rfd3 Bc5 Bh4 Ba7 Rc1+
1B1n1KNR/2pqB3/q1PQ2Rb/kN4pp/3Qq1rP/P1P3n1/p2q2r1/2N5 w - - 1 2 illegal: No possible last move
q1rBK1k1/1PQNQ3/3Rpq2/Np1b4/1P4rq/bPP2np1/2Q3p1/2q1RB2 w - - 0 1 illegal: Other
1B1KR1N1/4r2P/QnR3q1/pqPp4/1pNP1q2/R3Q1nB/pP5r/qkb5 w - - 1 2 illegal: No proof kernel
n2B2n1/np1pN1qr/1P1r1k2/3Q1B2/1KqP2R1/1QR1ppP1/4PQn1/3N1r2 w - - 1 3 illegal: No proof kernel forced: wxLB
8/Q2rb1Bp/P1R1p2R/2p2k1P/1bn1p1pq/rb4P1/1NN4P/1RK1B1Qn w - - 0 1 illegal: No proof kernel
B5r1/1N2P2p/1P1nQR2/1Pp1pNb1/1kpr1bR1/n2nP3/K6p/1q3BBQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 f5 Be6 fxe6 dxc4 g4 Ke7 d4 Kd6 Kd2 a5 Kc2 c5 b4 f5 Kb2 h3 e7 a4 g5 f4 d5 a3+ Ka2 h2 g6 f3 b6 f2 g7 Nc6 Nd2 Nf6 g8B Bh6 Ngf3 Bf4 Nd4 Ne8 Rg1 Ra7 Rg4 Rd7 Be6 Rg8 N2b3 Qa8 Bd2 Qa5 Rc1 Qb5 Be3 Bg5 Na5 Bf4 Bh3 f1N Bg1 Ne3 Bf1 Nc2 Bf5 Rd8 Be4 Kd7 Nf5 Nd6 Nb7 Bg5 Kb1 a2+ Kb2 a1B+ Ka2 Bc3 e3 Na3 Qf3 Bf4 Qh1 Be1 Rc2 Bh4 Rf2 Bhg5 Beg2 Nd4 Bf3 Ne2 B3g2 Ne4 d6 Kc6 d7 Nc1+ Kb2 Nd3+ Ka2 Ra8 d8Q Ra7 Rf3 Nd6 Qf8 Ra8 Qf7 Rad8 Qg6 Qa5 Qe6 Kb5 Rf2 Ka4 b5 Qb4 Na5 Qe1 Ba8 Kb4 Nb7 Ne8 Rf3 Rd4 Rh3 Qd1 Rh6 Nd6 Rf6 Qb1#
8/r1np1k2/5rp1/3PR1pP/P1KBp2b/3RNrRQ/1q1bPpN1/B1Q3n1 w - - 0 1 legal: proof: c4 b5 cxb5 e5 f4 a6 f5 Bb7 b6 Bc6 Nh3 Bd5 Ng1 Be6 fxe6 Qe7 Nc3 Qf6 Nb1 Qd8 g4 h6 b4 Ra7 g5 hxg5 b7 Ne7 b5 Ng6 b6 Ra8 Bg2 Ne7 Bc6 Ng8 Bb5 axb5 d4 f5 Kd2 c5 Kc3 b4+ Kd3 e4+ Kc4 g6 h4 f4 a4 b3 d5 f3 h5 f2 e7 b2 Rh3 Na6 b8B Ra7 b7 Qb6 Nd2 b1R Ngf3 Rb3 Nf1 Nh6 Be3 Nf5 Ra3 Nd4 Be5 Nc7 Ne1 Nf3 Ba1 Ng1 Ng2 Rh7 Qd2 Rf7 Qd3 Rf5 b8Q+ Kf7 e8R Bd6 Rf3 Bf4 Re5 Rf6 Rh3 Bg3 Qb7 Rb5 Kc3 c4 Qc6 Bh4 Bd4 Rc5 Qe3 Qb1 Rb3 Qb2+ Kb4 c3 Qe6+ Kg7 Rg3 c2 Qh3 Rc3 Qc1 Rcf3 Kc4 Kg8 Rd3 Kf7 Qb1 c1B Nfe3 Bd2 Qf1 Na8 Qc1 Nc7
k2N2qR/p1bp1pp1/1B3QP1/1nK1r3/4N2p/1Q1P1r1R/1P2B1RP/1b2q2b w - - 1 3 legal: proof: f4 c5 a4 b5 axb5 e5 d3 exf4 Kf2 c4 Ra4 Nc6 Ra5 Ne5 Ra1 cxd3 Nh3 d2 Ng1 Nd3+ cxd3 Bb4 Qa4 Bd6 Qd1 Bf8 e4 h5 g4 h4 b6 f3 Ke3 f2 Kd4 Qe7 g5 Kd8 b7 Kc7 b8R Ba6 g6 Nh6 e5 Ng8 e6 Qd8 e7 Nf6 e8Q Bd6 Qe6 Nd5 Nh3 Re8 Ng5 Nc3 Qdb3 d1B Qf6 Re3 Rg1 Bb7 Be2 f1Q Rg3 Bc2 Nd2 Bh1 Nde4 Rf3 Rh3 Nb5+ Kc4 Kc6 Ne6 Bc7 Be3 Qf2 Rc8 Kb7 Rg1 Bb1 Rg2 Qe1 Bb6 Qh8 Rg8 Re8 Kc5 Ka8 Nd8 Qh7 Rh8 Qg8 Qf5 Re6 Qf6 Re5+
1qNr2rb/4Ppp1/k1B3Pn/p4B2/PR3p2/2Q1NbP1/q4KNp/QR2b3 w - - 1 2 illegal: Other
1b4R1/2q3NP/1q3NpB/1np1Q1pp/1qP1p1K1/1Q2bB2/2RrP2P/5nkN w - - 0 3 illegal: No possible last move
2K2Nqr/1r2n3/1BPk1p1p/1rp3NP/1r3bQ1/7p/b3PQpP/R1RB3B w - - 1 2 illegal: Other
4r1QB/ppBn1q1n/3KR1n1/R1P5/N4pNb/P1p1Q2p/PPb3kn/4B3 w - - 1 2 illegal: Other
2N3k1/pn1PP1B1/1pBr1R2/pPQnNp2/r3b3/3RpQb1/b3P1KR/b7 w - - 0 2 illegal: No proof kernel
2Bb2b1/5p2/2nQnP1q/kpPQ4/7R/pPP1B1p1/pNNR2bn/1Kn2Q2 w - - 0 1 illegal: No possible last move
2r1n1BR/Pp2k1pp/4N3/PNp1rQb1/Rr2p2P/1Q2P2K/qp1n2N1/5B2 w - - 0 2 illegal: No proof kernel
2r1B1k1/R5PR/p3np2/p1NP4/2Q1p1pq/pQ2PNrR/1nB2PbK/5r2 w - - 0 2 illegal: Other
N3R3/kp2rK1p/Pb1p1p1b/2BB1nr1/N4P2/1B3PQP/4pp1R/b2Q1n2 w - - 1 2 illegal: No proof kernel
2RbNK2/2qrQP1R/2b1P3/n1n2r2/Q1pB1p1n/1r2qP2/2P1Q1r1/rBN4k w - - 0 1 illegal: No proof kernel
5K2/p1n2pR1/Nrq1QP2/Pqb1BP1B/4RP1N/8/1nkn1Qn1/nb1r1R1r w - - 0 1 illegal: Other
1b3RKb/N2p1B1n/6q1/2P1b3/1nbP2Rq/1Qr1PNpN/Q3r1P1/B1k2rb1 w - - 0 1 illegal: No proof kernel
3Q1R1K/k1Bbb2p/B2N1R2/P2p2n1/1rQ4P/1qPP1rq1/2n5/NBq1qq1n w - - 0 1 illegal: No proof kernel
2nk4/B1pqpQ1R/b1r2P2/Qbq1P1bb/2PPBB2/1K5b/Nn3q2/2N2rR1 w - - 0 1 illegal: No proof kernel
b3b1R1/P1bKRP1N/qp1B3n/b1r1p1Q1/1rN4n/QP2N1q1/B1b1P3/kq6 w - - 0 1 illegal: No possible last move
1R3K2/pq2n3/1k3r2/qpn1R3/BP1bb3/rNNB3r/PB2bPP1/rr1Q2Q1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 Ke2 d5 Kf3 Kd7 Kf4 Kc6 Ke5 h5 c4 b5 b4 d3 f6 d2 f7 h3 c5 h2 Nh3 d4 Na3 d3 Qa4 d1Q Nc2 h4 Ng1 h3 Bb2 d2 Na3 Bg7+ Ke4 e5 f8Q Ne7 Bd3 Bb7 Qf7 Qa5 Qc4 Nd7 Nb1 Raf8 Ne2 Rf6 Nc1 Rhh6 Re1 h1R Nc3 h2 Nb3 Rh3 Rc1 Kc7+ c6 Kb6 Qd5 Rf1 c7 h1R c8B Qh5 Rb1 d1B Rc1 Qf7 Rc2 Be2 Qa3 Nf8 Be6 Nd7 Rcc1 Rg3 Bf5 Rhh3 Bc2 Nc6 Qd1 Qe7 Kd5 e4 Bg6 e3 Bgd3 Nc5 Qa4 Ba8 Qa3 Qb7 Qa4 Ne6 Kd6 Ne7 Qa3 Qf3 Kd7 Qb7+ Ke8 Nc5 Qa4 Rd6 Qa3 Bd4 Kf8 Re6 Nd2 Rc6 Ba4 Rfh1 Nb3 Rf6+ Ke8 Qc7 Rc2 Be4 Rc1 Qb7 Rc2 Rfg6 Kf8 Rgh6 Rc1 Rf6+ Ke8 Rfg6 Qd2 Rgh6 Nd1 Bg4 Bc3 e2 Kf8 Bgf5 Na1 Bc6 Bdc2 Bc8 Qb2 Re3 Qb1 Ne4 Bb2 Ra3 Bd3 Bg4 Nb3 Bd5 Rc8 Nc5 Rb8 Rf6+ Ke8 Rf1 Nc3 Rg1 Qf4 Rf1 Qh2 Bdf3 Qg1 Bf5 Rd1 e1R Rd2 Rc1 Re2 Rfd1 Re4 Be2 Re5 Be4 Qc2 Ra1 Qc1 Rc6 Kf8 Rf1 Qd2 Rfb1 Qdd1 Rf6+
2K3Rb/3q2p1/nbQq1PPB/2Nnpq1P/1R2P2Q/1BrbN3/3kr2q/1r1B4 w - - 0 1 illegal: Other
1k3BNr/1n1b4/Qp1n3b/1P2p2r/1qn1P3/Nb1B2b1/1RR1Pr1P/3q1QNK w - - 0 1 illegal: No proof kernel
1bBBn2n/2r1QP1N/P1R3pr/2Qq1b2/2b3Pn/1k2p2n/2R1P3/1Bq1q1NK w - - 0 1 illegal: No proof kernel
Qr3knq/np3b2/1P6/n1P3PB/pR1RrNq1/bbK4r/PRQ3N1/4B1r1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 Kd2 h5 f4 e5 b4 a5 g4 d5 c4 h3 g5 d3 b5 d4 b6 h4 f6 a4 f5 e4 Qe2 h2 Qd1 h3 Qe1 Be6 Qh4 Qc8 Ne2 Ba3 f7+ Kf8 c5 Nc6 Nf4 Na7 Ng2 Rb8 Be2 Rh7 Re1 h1Q Rd1 h2 Qf2 Rh3 Nc3 Qg1 Rb1 h1R Rb4 Qe8 Nh4 Qg4 Nd5 Rg1 Nf4 Qd8 Bb2 Bd5 Nhg2 e3+ Kc1 d2+ Kc2 d3+ Kc3 Be6 Rb1 d1B Bc1 d2 R1b2 Kg7 f8R Bf7 Re8 Bc2 Ree4 Kf8 f6 Bcb3 Red4 Qdc8 Bf3 Qe8 Qe2 Qec8 Qd3 e2 Qg6 e1R Qc2 Bh5 f7 d1N+ Kd3 Qd8 Bd2 Re4 Be1 Ne3 Kc3 Nc4 Bf2 Kg7 Be1 Na5 f8Q+ Kh8 Qe8 Kg7 Qb5 Kf8 Qa6 Nc8 Qa8 Bhf7 Nd5 Na7 Ndf4 Rhh1 Be2 Qf6 Bf3 Qh8 Bd1 Qe6 Bh5 Qg4 Ne2 Rh2 Nef4 Rh3+
Q1n3b1/3pn2n/rq1P1p1r/1R4N1/1KP1B2b/2BRPP1n/rbQN3N/q3k3 w - - 0 1 illegal: No proof kernel
N3B1n1/2q2N2/1Q1BKnp1/Q5rq/1r2Pb2/2RprPPN/n2Pr1b1/R1qk4 w - - 0 1 illegal: No proof kernel
1BB2k2/PRQ2np1/rR1b1q2/NP1r1p2/3Nb1P1/2br1PQ1/3nn3/1q1K2Qr w - - 0 1 illegal: No proof kernel
B1q1RB2/1Qq5/pp1R4/Q2bb2b/PKq1N2k/PP1N4/rP1Nr2r/n5nq w - - 0 1 illegal: Other
1n2b2q/Npn4r/3BP2p/1Q1B4/3q1rNP/R4b1P/RPQ3B1/qnbqk1K1 w - - 0 1 illegal: No proof kernel
3r2q1/qNR1b1p1/N1Rp1nPP/1Q1B4/5P1b/bNbP1KBb/1b6/Qrnk4 w - - 0 1 illegal: No proof kernel
2br2r1/pQ2qp2/PnN3P1/2n1Q3/RRP2Pkb/b3nr2/B3r3/B1NQK2b w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 f4 Kd7 a4 Ke6 g4 h5 c4 b5 d4 e3 g5 Kf5 a5 e5 d5 e2 c6 h3 a6 b4 c7 e4 g6 h4 d6 b3 d7 h2 Nc3 b2 Ra5+ Kg4 Qc2 b1R Qb3 h3 Kd2 e1N Nce2 e3+ Kd1 Qe7 d8Q Ng2 Qe8 Nf6 Ng3 Nbd7 Bd3 Rg8 Nf3 Ne4 Ra4 Nb6 Nd4 Rb2 Nge2 Nc5 Nc6 Rc2 Rg1 h1B Bb2 h2 Nc1 Rf2 Bb1 e2+ Kd2 Rf3 Ba1 e1B+ Kd1 Rb8 Ba2 Bh4 Kd2 Ra8 Qd1 Rb8 Re1 Ne3 Re2 Be6 Rf2 Rd8+ Ke1 Bc8 Rb4 Bg7 Ra4 Bb2 Rb4 Ba3 Ra4 Bf5 c8Q Bd7 Qb7 Bc8 Bg7 Bg2 Ba1 h1R+ Ke2 Rhh3 Ke1 Bh1 Rb4 Rh2 Ra4 Kg3 Rb2 Rhf2 Rb1 Kg4 Rbb4 Qf6 Qe4 Qe7 Qe5 Re2+
1QBb1R1K/3br1p1/N1QN1Bkr/Pr2R1n1/P4p2/1b2bP2/1rq1n1P1/1Q2n3 w - - 0 1 illegal: No proof kernel
1Bb4n/P1n3p1/1PN1Q1P1/KB3r2/q2p1RrN/1q1n1r1Q/1nRP3r/k3b1Q1 w - - 0 1 illegal: No proof kernel
1n4rb/1pB1p1Q1/qnr5/1PR1B1RP/brB1P2N/4PQ2/K2N1q2/1q2kr1q w - - 0 1 illegal: No proof kernel
1bK2b2/PpN2q1Q/q3p1BP/2QRr3/NP2R1n1/nkq1Pq2/8/1b1rQ1Bb w - - 0 1 illegal: No proof kernel
Q2r2Bb/BK1b3N/q3rRp1/k1Pn2P1/3Rr2p/2n1p3/1PqbPB2/2q1QN2 w - - 0 1 illegal: No proof kernel
3Q4/P1pnRB1n/bkPRQr1K/1pq2p1n/q4qb1/4bP2/4RP2/B1N2r1N w - - 0 1 illegal: No possible last move
1n1n2q1/nRBq1q1p/r1B4Q/3P4/b1p3RP/2N1rQ2/P1PK2Bp/r2Nb1k1 w - - 0 1 illegal: No proof kernel
1b1k4/N1nr1r1p/6BB/p1qpBR2/2q3nN/P2q2K1/P2PQ1P1/2rQnR1b w - - 0 1 illegal: Other
1r2RRN1/4KpB1/Qnnp2r1/4B1Nk/5Q1q/2Ppqn2/b1PP1PB1/2bq3b w - - 0 1 illegal: No proof kernel
1B6/bb1rRQR1/4p1Qb/pPK2p1q/Q1N3N1/3q2n1/Pr1nPP2/k3nB1q w - - 1 3 illegal: No possible last move
1Q1n1qr1/N4p2/1P1pbP1n/Qn1Pp1r1/1n1RPb1k/3Qb3/1N2K3/1n1R2BB w - - 0 3 legal: proof: b4 c5 a4 g5 h4 b5 axb5 cxb4 Ra6 gxh4 Ra5 Qb6 Ra1 Qd8 e4 e5 g4 Ke7 c4 Kf6 d4 h5 f4 a5 d5 h3 b6 h4 f5 d6 c5 h2 c6 h3 c7 b3 Nc3 b2 Bg2 b1N Be3 a4 Bd2 a3 Bf4 a2 Qc2 Rh5 Be3 Bh6 Kd1 Bf4 Nf3 Rg5 Nd4 Qf8 Nc6 Nh6 Qd3 Be6 Na7 Nc6 c8Q Nd8 Qc5 Rc8 Rg1 h1N Qa5 h2 Na4 Nf2+ Ke2 h1N Nb2 Nd1 Bd4 Nhf2 Bh1 Na3 Rc1 a1B Rc4 Nb5 Bc5 Ra8 Rd4 Rb8 Nc4 Bc3 Nb2 Bcd2 Rf1 Bde3 Re1 Kg7 f6+ Kg6 Rf1 Rf5 g5 Kh5 g6 Rg5 g7 Kh4 g8Q Ndc3+ Kf3 Nb1 Rd1 Ra8 Ke2 Rc8 Qdd2 Nd3 Qh8 Nb4 Qd3 Qg7 Qe8 Ndc6 Qd8 Qf8 Qc7 Nd8 Qb8 Bd2 Rc4 Bc1 Bg1 Bce3 Rd4 Rc2+ Kf1 Rcg2 Ke1 Rg8 Kf1 R2g3 Ke2 R3g5
1b1RK3/q2R2pN/1QbB1pP1/1brp1bB1/1P3P2/1Q2rP1k/4n1r1/1b2Nn1B w - - 0 1 illegal: No proof kernel
B2R2rN/p1p5/Q1P3p1/1bK1Bb1B/8/2b1PRPq/Pnbb2k1/2nnQ1Nr w - - 0 3 illegal: No proof kernel
3N4/q1p1pr2/2b3pK/nPQ1rb2/BB3Q2/R1n1P3/P1PbNn2/R1Nb2rk w - - 0 1 illegal: No proof kernel
k2n2r1/Nppp3b/qPRP2BP/4r1Q1/2q4N/BR2P1q1/Q1qN2K1/1n1qb3 w - - 0 1 illegal: No proof kernel forced: wxLB
Q1b2qk1/NnN3B1/p2P4/1rp1Qp2/B1Rb2n1/2PnrP1q/2K3Pn/1B1R2n1 w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 g5 hxg5 b5 Qf3 bxa4 Qe2 Ba6 Qd1 Bc8 d4 h5 Kd2 e5 b4 f5 b5 Kf7 c3 c5 b6 a3 b7 e3+ Kd3 h4 d5 e2 d6 e1N+ Kd2 h3 Bb2 a2 Qc2 a6 Qe4 h2 Nh3 Nh6 g6+ Kg8 g7 Ng4 Qa4 e4 Qd4 Nc6 b8Q Nb4 Ng5 Nbd3 Ne6 Nf3+ Kc2 e3 Nc7 e2 Na3 Ng1 Rd1 Rh3 Qe5 Re3 Bc1 Qf6 Qa7 Rb8 Qa8 Rb5 Bd2 Qh6 Bc1 Qh3 f3 e1Q Be2 Qeh4 Bd2 Qd8 Bc1 Be7 Bd2 Bf6 Bc1 Rb8 Nab5 Qf8 Na7 Rb5 Bf1 Re4 Bh6 a1N+ Kd2 Nb3+ Kc2 Re3 Be2 Nb2 Bd3 Na5 Be4 Nd3 Bc6 Kh7 g8B+ Kh8 Be8 Nb7 Ba2 Bg7 Bb1 Kg8 Qe7 Bd4 Bg7 Ne2 Rhe1 h1N Qe5 Ng1 Bd7 Nh2 Be8 Ra5 Ba4 Rb5 Re2 Nhf2 Red2 Re1 Re2 Nfg4 Re4 Be3 Rb4 Bd4 Rc4 Re3
3n1n2/1r1pk3/2bR3P/1brqpQn1/q3PK1P/N3n1p1/3b1RP1/BBQ2Q1N w - - 0 1 illegal: Other
7b/RR1Q1qp1/PbN5/1r2pb1p/3BP1QB/6PP/2bkNqr1/K1n2nrR w - - 1 3 illegal: Other
2r2b1q/1q2pq1Q/B4p1Q/P3P2b/3kbPKR/pnn1R3/qP1B4/4rNNR w - - 0 1 illegal: No proof kernel
2rN4/4k1NB/1r1p1nbp/3Pq1p1/1R1Rbn1P/1qPQ1R2/K4QPb/2n1B1n1 w - - 2 3 illegal: No possible last move
qn1b2b1/RqpB1Np1/7r/b1Pp2Pn/q2r1BbQ/3K2P1/2P1R3/k1N1QB2 w - - 0 1 illegal: Other
Q1r4n/2n4Q/2p1b1Q1/1b3pr1/N1P1BRN1/2B1pPb1/Kb1qkP1P/r1R2q2 w - - 0 1 illegal: No proof kernel
5B1k/Pp1q3B/PN2r1b1/5Qp1/2p2b2/1nPnNnQQ/qn4PK/r1R1b2R w - - 0 1 illegal: No proof kernel
1b3K1R/1p1Bb2R/1BbrP2Q/1pqN1PNn/Q2pB3/2nP2q1/1P5r/q1k4b w - - 0 1 illegal: No proof kernel
6q1/q1r2r1p/Q2qnp1R/3knP2/B1p2Q2/bBb1Kb1P/2PP2N1/NN2Rq2 w - - 0 3 legal: proof: e4 g5 a4 b5 axb5 d5 Ra5 dxe4 Ra6 Bh6 Ra1 Bf8 f4 Bb7 b3 Qd3 f5 Qd4 Ba3 Qd8 Bd6 Bc8 Bf4 gxf4 Ke2 Kd7 g4 Kd6 b4 a5 h3 e5 g5 c5 b6 f3+ Kf2 c4 g6 e3+ Ke1 e2 Kf2 f6 b5 e4 b7 a4 g7 a3 b6 a2 Qe1 Kd5 Ke3 f2 Bg2 f1Q Nf3 Nd7 b8Q Ra7 b7 Nh6 g8B+ Nf7 Rg1 Nc5 Qf4 Ne6 b8N Bb7 Nd7 Ne5 Nc5 Qd6 Nh4 Be7 Bf7 Rc8 Bh1 Rc7 Be8 Bf8 Qd1 e1Q+ Qe2 Be7 Ba4 Qg3+ Bf3 Bc6 Ng2 Qg8 Nb3 Bf8 Qe1 Rf7 Qc1 Rac7 Qa3 Be7 Nh4 Bb7 Rg6 Bc6 Ng2 Qg1+ Ke2 Qa7 Rh6 Ba8 Bh5 e3 Bg6 Rf8 Bge8 Rf7 Nc5 Bb7 Bb3 Bc6 Qa6 Ba8 Ke1 e2 Kf2 Bf8 Bea4 Bb7 Na3 Be7 Rd1 a1B Ke3 Bc3 Nb1 Ba8 Rf1 Bc6 Rf2 e1Q+ Re2 Qf1 Re1 Nd4 Ba2 Bb7 Nb3 Ba8 Na1 Ne6+ Qb6 Qdd8 B2b3 Ba3 Rh4 Qdf8 Rh6 Qd6 Rd1 Qa5 Qa6 Kc5 Qb7 Qa7 Qa6 Bf3 Re1 Kd5+
q2n1B2/1qn5/1rb2Q1r/RB2pp2/1b1N4/1bNPP1Q1/pk2rPP1/1b1KRB2 w - - 0 1 illegal: No proof kernel
4B2Q/rrnp4/b4BN1/KP1RN1qB/Q1n2rp1/3P1p2/1RP2Pkq/3rb1n1 w - - 0 1 illegal: No proof kernel
2NQ1Kb1/4pr1r/3p2kP/P1Brb1p1/1NB3Pq/q1RnR3/3P1n1N/1q2q1Q1 w - - 0 1 illegal: No proof kernel
n2R1R1N/1qB2q2/q5pQ/P1bpnNQ1/p7/6PK/PrkN2qP/4rBrb w - - 0 1 illegal: No proof kernel
K1QN4/2qq1rp1/R1PRN3/1br4p/1n1q2kP/P2pr1rn/N1B2bP1/4Q1B1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 h5 h4 e5 c4 e4 f4 d3 a3 e3 c5 d2 c6 b3 Qe1 d1Q+ Qd2 e2 Qd3 e1R Nc3 b2 Rh3 b1Q Bb2 b4 Qd2 b3 Nge2 Qd3+ Nd4 Qc7 Rb1 Bc5 Na2 Re3 Qe1 Ra5 Bc3 Q3d2 Bd3 b2 Bc2 Nh6 Rg3 Rf8 Rg6+ Kf7 f6 Ng4 f5 Na6 Kc4 Nb4 Ne6 Nf2 Bd4 Nh3 Rh6 Rg3 Bg1 Bf2 Rg6 Rd5 Rh6 Rdd3 Kb5 d5 Rg6 d4 Nd8+ Kg8 f7+ Kh7 f6 Rde3 Kc5 Qg4 Kb5 Qgd7 Kc5 d3 Kb5 Ba6+ Kc5 Rfe8 f8Q R8e7 f7 Bb5 Rd6 Qe2 Qe8 Qeg4 Qf8 Qf4 Qe8 Qf6 f8N+ Kh6 Nfe6 Rf7 Qh8+ Kg6 Qe8 Kf5 Qf8 Qcc8 Kb6 Kg4 Qe8 Qde7 Qd7 Qc3 Ka7 Qc7+ Ka8 Qd4 Qc8 Qed7 Rc1 b1R Rd1 Rb3 Rb1 Rc3 Rb2 Nd5 Rb4 Rc5 Ra4 Nb4 Ra7 Rf8 Ra6 Rf7
1R1n2Q1/Q1p2b1p/p1n3nb/rN2B3/qk2B2P/RP2N1q1/P3P2Q/K2r1bn1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g3 f5 g4 fxg4 Kd2 Ke7 Kc3 d5 f4 g5 h4 d4+ Kc2 g3 f5 g4 e6 Kd6 f6 Kc5 f7 d3+ Kc3 g2 e7 g3 e8Q d2 Qe1 d1B Qa4 Ne7 Bf4 Nec6 Rh3 Bb3 Qa6 Qe8 Rh1 Nd8 Rh3 Bh6 Nd2 Qa4 Rb1 Nbc6 Ngf3 g1Q Be5 g2 Nd4 Bg4 Rg3 Bh3 Nb5 Qh2 Qb7 g1N Bg2 Rf8 Re3 Qg3 Be4 Bf1 Qf2 Re8 f8Q+ Re7 Qg8 Rd7 Nf3 Rd1 Nd2 a6 Qh2 Rb8 Qa8 Rb6 Nd4 Rb5 Rd3 Ra5 Rf3 Bh3 Nf1 Bg2 Ne3 Bf1 Qb7 Re1 Kd2 c3+ Kd3 c2 Kc3 c1N Nb5 Bf7 Qb8 Qa3+ Kc2 Kb4 Qa7 Qa4+ b3 Qa3 Bg6 Nb7 Rf4+ Bc4 Re4 Nd3 Rd1 Nf4 Rd8 Rd1 Rb8 Nbd8 Bf5 Ng6 Rf4 Rd4 Kb1 Be6 Ka1 Bf7 Nd6+ Kc3 Nb5+ Kd2 Bb1 Rd7 Ra4 Rd3 Nd4 Kc3 Bc2 Qb4 Ra3 Qa4 Nb5+ Kb4 Bb1 Rd2 Be4 Rd1+
2r5/1qBpBp2/b2PP3/p1N2b1k/KQ2q2N/4rPn1/P1QRnb2/Q2q1R1q w - - 1 3 legal: proof: g4 h5 b4 hxg4 d4 c5 bxc5 e6 d5 Rh7 d6 Rh4 Bg2 Rh8 Bd5 exd5 Kd2 b5 Kc3 g5 Kb3 a5 c4 d4 e4 b4 h4 g3 e5 g4 f3 d3 h5 g2 h6 g3 c6 d2 c7 Be7 h7 Kf8 c5 Kg7 c6 Kg6 Bb2 Qe8 Rh2 Bh4 Bd4 Ba6 c8Q Ne7 c7 Kh5 Qb7 Nf5 c8Q Nc6 Ne2 g1Q Nbc3 g2 Na4 Qh1 Nc5 g1Q Ka4 b3 Qb4 b2 Rf2 Rf8 h8B b1B Bf6 Ng3 Be7 Bf5 Qc7 Rc8 Nf4+ Kh6 Qc2 d1Q Ng6 Kh5 Rd2 Rh8 Bf2 Nd4 Be3 Qge1 e6 Nde2 Rc1 Qd8 Qcb6 Qc7 Qb2 Rb8 Q6b4 Rhc8 Qa1 Rb6 B3g5 Qb7 Bd8 Rb5 Bc7 Rb6 Be7 Rc6 Nb3 Rc3 Nc5 Re3 Rb1 Nf1 Rc1 Bf2 Nh4 Nfg3 Rd4 Qd3 Rb1 Qed2 Rf1 Qde4 Rd3 Qe1 Rd2 Qd1
5QbB/4K1pp/rbp3Pb/1N3BP1/2k1q2n/2PbP3/1R1b3R/2rQbQNn w - - 0 1 illegal: Other
Rb1K1Q2/p2BP1q1/4b1NQ/4p2n/Pn5b/kPp1P2b/1b1R1B2/b1r1Nr1B w - - 0 1 illegal: No proof kernel
rb5n/3NBBRP/1p2nQRp/1b3p1Q/krq4b/bN6/1P3P1P/bQ2bK2 w - - 1 3 illegal: No possible last move, all moves rejected
1b2n1kr/pb1Rpb2/P4bp1/P1BBPr1n/1P5r/3Q1K2/1Bq4Q/1Rr3NN w - - 0 1 illegal: Other
K1b1RQ2/p1r1P1q1/r2Q4/P1B1p1n1/kpn1b2P/Nn2P2B/3b2N1/R1b1Q2n w - - 0 1 illegal: No proof kernel
1nNQ2B1/1Rp1Pb2/1rb2p2/B1br1Q2/1pBk4/P1N2qr1/1P1b1P1K/1R2rn2 w - - 0 1 illegal: No proof kernel
B2b2Rn/r2p3k/2pK1P1b/1Q1R3N/2b4B/N1P1np2/b1PPBr2/qQ1r2r1 w - - 0 1 illegal: No proof kernel
q1qK1nq1/1p2p2q/1P2qQ1B/N2n4/rP1bQNp1/N3rR2/2B1P1P1/krR5 w - - 0 1 illegal: No possible last move, all moves rejected
RB1b4/pnRn1n2/3r1pqb/1NnNQPPp/4b2k/Pnq5/7P/1QQ2B1K w - - 0 1 illegal: No proof kernel
1Qn1Q3/BpKB3R/n2QP2N/2p1p2r/1qR2q2/q1PqP1b1/1Pk2N1q/rr6 w - - 0 1 illegal: No possible last move
rqbn4/Bp1p2b1/1qB1q2R/1P1R2pP/4Q1P1/bQ1nB1Nk/1q1P2nN/K7 w - - 0 1 illegal: No possible last move, all moves rejected
3kbn2/1QRn1p1p/1p1P1P2/1RP1N1bB/1K4pN/rPb1Q1N1/r3q2B/6nr w - - 0 1 illegal: No proof kernel
8/RpB3pN/b1rP3Q/r1r1R1p1/B1k1b1Pp/K1Pn1nR1/1Pq2n2/4bQ1N w - - 0 1 illegal: No proof kernel
RNb1n3/r1P1PQ1r/prB4R/K3k2p/2b1Nq2/n3Qp2/Pp1b1N1P/1n2B3 w - - 0 1 legal: proof: d4 e5 f4 exd4 b4 c5 bxc5 g5 Be3 gxf4 Bd2 Nc6 Bc1 Nb8 Kd2 Ke7 g4 Ke6 c4 f5 e4 d5 g5 h5 c6 b5 e5 f3 g6 b4 c7 f2 c5 a6 g7 f4 c6 f3 Qe2 b3 Qe3 b2 Bb5 f1B Nc3 d3 Nh3 d4 Rg1 Bb4 Rg6+ Qf6 Nf2 Ra7 Rh6 Rh7 Ba4 Kf5 e6 Nd7 e7 Ne5 Rb1 Qf8 Bb5 Nf6 g8Q Ne8 Qg7 Bd7 c8N Ba5 Nb6 Bc8 c7 Nc4+ Ke1 Qf6 Qf7 Na3 Bc6 d2+ Kd1 Bc4 Nce4 Bb4 Nd7 Ba5 Nb8 Ke5 Ra1 Qf4 Rb1 Nb5 Kc2 d1N Ra1 Ndc3 Bd2 Nb1 Be1 Bd2 Qe2 Bd3+ Kb3 Bc4+ Ka4 d3 Qe3 N5a3 Rd6 Bc1 Ka5 d2 Rg6 d1R Rh6 Nc3 Rb1 Rd6 Ra1 Bd2 Rd1 Bc1 Rd4 Ncb1 Rd1 Re6 Rd8 Bd2+ Ka4 Qg5 Bd5 Bc1 Ka5 Rb6 Bc6 Bg4 Rc8 Qf6 Rd8 Kf5 Nd7 Bd2+ Ka4 Bh3 Ra8 Bg4 Nb8 Ke5 Qb3 Qf4 Qe3 Bc1 Ka5 Bc8 Qe2 Be3 Qd3 Bc1 Qe3 Bd2+
1Rq3Bk/NN3b2/1K1r1Rq1/4bpQq/Np1QPPp1/1n2pr2/1P1P1Br1/5n2 w - - 0 1 illegal: No proof kernel forced: bxDB
B3nn2/3PpPp1/bkq3Nq/q2bK1P1/3r4/1p2b2B/QP2p1N1/RRQ1B2r w - - 0 1 illegal: No proof kernel forced: wxDB
N5rb/N1n3p1/q3p3/qRpr2p1/1Pb1QqnB/2PbP1P1/2kBKQ2/1R3N2 w - - 1 3 illegal: Other
K1r3r1/1B2nPp1/1Q1pRb2/p1B2pN1/PRPQ1n2/N3q1n1/1b3Pb1/2qB3k w - - 0 1 illegal: No possible last move, all moves rejected
1b2Bkr1/r4br1/Rp2p3/pqp2b2/1P1N1Qnn/PK2Bq1P/1P1R1B2/3N3Q w - - 0 1 illegal: No proof kernel
4R1R1/1p1p2q1/P1Qnbr2/1PN3pQ/1NBP1b2/4B3/pbN3Pn/qk2Knr1 w - - 2 3 illegal: No proof kernel forced: wxLB
1Qq2nqn/Rp1r3k/3bp1Np/pPq2P2/B1n1Q1b1/1K2Q1R1/4P1rP/N1B5 w - - 2 3 legal: proof: c4 f5 a4 d5 cxd5 Nc6 g4 fxg4 a5 Nb4 a6 Nxa6 Ra3 Nb4 Ra1 Na2 b4 Kf7 f4 Kg6 d4 c5 Kd2 a5 Kc2 c4 b5 c3 d6 h6 d5 g3 d7 g2 d6 Rh7 Be3 Nf6 Bd2 Nc1 Nh3 g1N Bg2 Nf3 Qg1 Ne5 Ra3 Ncd3 Qe3 Nc4 Rg1 Nde5 Bc1 Nf7 Kb3 c2 Nd2 Nh8 Rf1 Qc7 d8Q Qc5 Bd5 Bg4 d7 e6 Qb8 Bd6 d8Q Nd7 Qh4 Nf8 f5+ Kf7 Rg1 Kg8 Nf4 g5 Ng6 Rd7 Rg3 Kh7 Rg2 Bh3 Qhe4 g4 Kc3 g3 Nb3 Bg4 Na1 Qc8 Kb3 Qc5 Rg1 g2 Rd1 g1Q Rd3 Qc8 Rc3 Ne5 Rc6 Nc4 Ra6 Qg3 Bb2 c1Q Ra7 Qcg1 Bc1 Qe5 Qh1 Qg2 Be4 Qec5 Bc2 Qgd5 Bd1 Qdd4 Qhe4 Qg7 Ka2 Qf7 Ba4 Qg8 Kb3 Q8c6 Qc7 Re8 Qb8 Qc8 Bb2 Ree7 Bc1 Rg7 Kc3 Rd8 Nh4 Nd7 Q3d3 Nf8 Kc2 Rg5 Ng6 Bh3 Qd2 Rg1 Rg3 Rg2 Kb3 Rd7 Qde3 Bg4
5rbB/2b3pP/1NRp1q1n/RQb2p1B/N2k1BQr/PK1Pn1P1/p2q3n/8 w - - 0 1 illegal: No proof kernel
3K1nbN/B1p4p/BpQ2PB1/n1PNrP1R/7R/Q3bp2/r1nq1k1P/1q5q w - - 0 1 illegal: No proof kernel
1q3k2/rpb1p1pn/2b5/N2B1p2/NPrBBRb1/P2QP1r1/1n4PQ/3q1RK1 w - - 2 3 illegal: No proof kernel forced: wxDB
1R1KN1r1/3p1b1p/p1BPb1nP/P7/1r1Q2b1/Q1b1Rn1q/pBP3kb/1N4N1 w - - 2 3 illegal: No proof kernel
3Nb1N1/3B2pr/4bn1N/b2rK2B/1np2pPp/b2PR2P/k1PQR3/3q2bQ w - - 0 3 legal: proof: f4 b5 e4 e6 a4 d6 b3 e5 Bb2 exf4 axb5 Bf5 e5 Bd7 e6 Bc8 Be5 dxe5 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 h3 a5 b6 h5 b7 c5 e7 f3 e8B f2 Rh2 a4 Qe2 h4 Nf3 a3 Nc3 a2 Nd5+ Ka3 b4 Ra5 b5 Be6 b6 Na6 b8Q Nb4 b7 Rh7 Re1 a1B Ng5 Ka2 Nf6 Bd4 Qa8 c4 Bg2 f1B b8N Bg1 Nc6 Be7 Bf3 Bg2 Qe3 Qd7 Nd8 Bh1 Qc6 Rd5 Qc3 Bd6 Re3 Be7 Rhe2 Bf8 Bg2 Bc5 Kf3 e4+ Kf4 Be7 Nh5 f5 Nf6 Bc5 Bh5 Bf8 Ngf7 Be7 Rd3 e3 Nh6 Bf8 Rf2 e2 Re3 e1B Rfe2 Rd4+ Ke5 f4 Bd5 Be4 Qb7 Bg6 Bc6 Be8 Bb5 Be7 Qh1 Bc5 Nd5 Nf6 Ne7 Nbd5 Qa5+ Ba3 Neg8 Nb4 Bc6 Qb7 Bd7 Qf3 d3 Rd6 Rd2 Qd1 Rde2 Nbd5 Qa6 Ba5 Qb7 Nb4 Qbg2 Rd4 Qf2 Rd6 Qe1 Rd4 Qd2 Rd5+
7n/2bNp2b/1QB2p1b/2ppP1bP/nR1r1PrR/5Q2/PR2NBqK/1b3k2 w - - 0 1 illegal: No possible last move
RQn1b3/4Bppp/4Q1P1/rn2Q3/kP1Pb2K/qN1p1r1B/2rP4/2bNR2b w - - 0 1 illegal: No proof kernel
Q4R2/Q3pK2/b2RBppp/B1qbn1NP/1Qnb1P2/2Prb3/2P1nN1k/2r5 w - - 0 1 illegal: No proof kernel
1B4b1/4N2P/p3pr2/2RrPQRR/P2B1Nnn/3Qbk1p/b2Kbp1P/4n1q1 w - - 1 3 illegal: No possible last move
B1nN3k/1RBp2r1/2p3K1/1b1Pr2r/q2P1RNp/2P4Q/p3Q1nP/b1nr1Q2 w - - 0 3 legal: proof: g4 f5 d4 fxg4 a4 c6 e3 Qb6 d5 Qd4 exd4 b5 Bg2 bxa4 Bh3 Nh6 Bf1 Ng8 Kd2 Kf7 Kd3 g5 Ke4 Kg7 Kf5 e5 f4 a5 b4 h5 c3 e4 b5 a3 b6 h4 b7 e3 Nh3 a2 Bb2 a4 Qc2 e2 Bg2 e1N Nf2 g3 Qd3 g4 Bc1 a3 Rf1 Na6 b8Q Nc5 Qb2 Ba6 Qbe2 Re8 Nd2 Nb3 Rb1 a1Q Nc4 Bb5 Nd6 Ne7+ Kg5 a2 f5 Nc8 Nf7 Re5 Bf4 Ba3 Nd8 Nc1 Rb3 Kg8 Kg6 Rh5 f6 Kh8 f7 Bb2 Be4 g2 Qh3 g1R Bd3 g3 Ng4 g2 Bg3 Qb1 Rf4 Ba1 Rb2 Ba4 Rb7 Qb4 Ba6 Qb3 Rb5 Rf1 Bb7 g1R Ba8 Ng2 Rb7 Qa3 Kf6 Rd1 f8Q+ Kh7 Qf7+ Kh8 Kg6 Bb5 Qf5 Qa4 Qfd3 Rge1 Qf1 R1e4 Qde2 Re3 Rf7 Re7 Bc7 R3e5 Rf4 Rg7+
2b2K2/1r3pP1/BNB4n/1rQ1N2p/Rn1BqPpk/3Rb1pP/2P2n2/3Qn1b1 w - - 0 1 illegal: No proof kernel
8/1prbqR2/1B1k2N1/bPpP2bP/1BQ2nBQ/b3nNp1/rrP3Rp/6K1 w - - 0 1 illegal: No possible last move, all moves rejected
3n1nbk/p4B1p/rr2Q1RN/Rp3n1b/1P3Qp1/3qBr1P/P4nNP/1N4K1 w - - 2 3 illegal: Other
Q1n1n1r1/pb1PpR1Q/R4qnN/P6p/RpkbB2P/1b2rn2/K3P3/5NB1 w - - 2 3 legal: proof: c4 d5 f4 g5 b3 gxf4 b4 c5 bxc5 dxc4 a4 Kd7 d4 Kc6 Kd2 Kd5 Kc2 f5 Kb2 b5 g4 f3 a5 f4 g5 c3+ Ka3 c2 h3 b4+ Ka2 f2 c6 f3 c7 Bb7 c8R Nd7 g6 Ngf6 g7 Ne8 Rc6 Qb6 Bg2 f1N Qd3 Nh2 Be3 h5 h4 Rg8 Re6 Rc8 Nd2 Rc3 Nf1 Qc6 Rg6 Nb6 Nh3 Nc8 Ng5 Qf6 Bg1 Rb3 Qf5+ Kc4 d5 f2 d6 Nf3 d7 Re3 Nf7 Bd5 Nh6 c1N+ Kb1 Bf7 Ra4 Nd3 Ka2 Nde5 Qb1 Nd2 Be4 Ndf3 Rh2 Bd5 Rhg2 Be6 R2g4 Bf7 Rf4 Be6 Ng3 f1B Rf5 Bg2 Nf1 Rh8 g8Q Bg7 Qh7 Rg8 Qd1 Bf7 Qd6 Bd5 Qb8 Bb7 Rf4 Bh3 Qa8 Be6 Rg3 Ng6 Rf5 Qf8 Rf7 Bd4 Rg5 Bed5 Re5 Qg7 Re6 Qf6 Ra6 Kc3+ Kb1 Bb3 Ka1 Kc4+ Kb1 Bc2+ Ka2 Bb3+
nrKR4/p1bP3r/Q4rpP/3p1B2/PR3B1N/3r1q2/Q2N1pPb/Bn1k3b w - - 0 1 illegal: No proof kernel
1K1bN1R1/b1pp1nBb/P1q2NQ1/1p3n1r/n1r4p/2P1b3/1kPP1Q2/3QRB2 w - - 0 1 illegal: No proof kernel
N6K/1kP1rB1p/nbpq2p1/6R1/R6P/PQ1bbQn1/2RpbqP1/1rBN4 w - - 0 1 illegal: No proof kernel
kb2B1N1/p3p1Np/1Pr3Q1/2rbr3/1R1RPK2/Pb3B2/3qn1pP/2Q1Bbb1 w - - 0 1 illegal: No possible last move
1nQRq1BB/1Knq3q/3N1q2/p1r2prp/1kr1R1PQ/N1b3p1/P1R2PP1/8 w - - 0 1 legal: proof: e4 g5 c4 d5 c5 dxe4 h3 g4 c6 g3 Ke2 Bg4+ hxg4 bxc6 Ke1 c5 Rh3 c4 Rh6 Kd7 Rh1 Ke8 Ke2 Kd7 Ke3 Kc6 d4 Kb5 b4 a5 d5 f5 Kd4 h5 d6 e5+ Kd5 c5 d7 e3 Ne2 e4 Rh2 c3 Qe1 c4 Qd2 c2 Qc3 Nf6+ Ke6 Nd5 Bb2 c1R Rh1 Bg7 Kd6 Rg8 Qf6 c3 Qh4 c2 Nd4+ Ka4 b5 e2 b6 e1Q b7 e3 Na3 e2 Ndb5 Qd1 Rb1 e1Q Bc4 Qee8 Re1 Bc3 Re4 Kb4 Ra1 Qg5 d8R Qg7 Rb1 Qh7 Bb3+ Qd4 Ba1 Rg5 Rb2 Ne7+ Kc7 Nd5+ Kc8 Nc7 Nd6 Ra7 Nf7 Ra6 Nd6 Rc6 Bg8+ Ka4 Rb6 Rc4 Rc6 Kb4 Bb2 Qf6 Ba1 Rd1 Rc5 Rd5 Rc6 Nd7 b8Q+ Rb5 Qa8 Rc5 Kb7 c1Q Qc8 Qd1 Bb2 Nb8 Ba1 Be1 Bd4 Bc3 Be5 Qff8 Bh8 Qf6 Rb6+ Ka4 Rb2 Qdd4 Rd2 Kb4 Rc2 Qd1 Rce2 Qda4 Rc2 Qad7
8/1bn1pp2/r1Nq3k/B2N1QRp/qR1N1PBK/2QPP2P/1q3pbb/1q5r w - - 0 1 illegal: No proof kernel
3k1brb/p3R3/b1B2N1K/rpnp1r2/Pq1P2pQ/4RB2/2PQ1pPR/4n2N w - - 2 3 illegal: No proof kernel
1b4Qq/K1kpp1B1/2N1q1P1/P2rN3/1r2nnp1/2RP4/Bp2qpP1/2RNQb2 w - - 0 1 illegal: No possible last move
3r4/pRbPp3/Qq2p1pP/2nN3b/Pq2nN1R/kpR3Q1/1r2P2B/3B2rK w - - 0 1 illegal: No proof kernel
nbr2kBN/3p1Nb1/1P1bq3/p1KP1np1/P2p1prN/5P1R/4BQ1Q/1R3b2 w - - 0 3 legal: proof: d4 e5 g4 b5 c4 bxc4 d5 h5 gxh5 Qe7 Be3 Qd8 Bd4 exd4 Kd2 g5 b4 f5 h4 a5 a4 c5 e4 c3+ Kd3 c2 Kc4 c1B e5 f4 h6 Ne7 e6 Nbc6 h5 Qc7 h7 Bg7 b5 Nb8 b6 Nf5 e7 Qd6 h6 Ba3 Be2 Qe6 Nf3 Na6 Qg1 Nc7 Nc3 Ba6+ Nb5 Rc8 Rh3 Na8 Nh4 Kf7 e8B+ Kf8 f3 Bb4 Qf2 Ba3 Kb3 c4+ Ka2 c3 Kb3 c2 Nd6 c1B Nf7 Bd6 Rb1 Rg8 h8N Bca3 h7 Bc7 Ng2 Bad6 Nh4 Bb7 Kc4 Bb8+ Kb5 Bdc7 Kc5 Ba6 Bd1 Bf1 Be2 Ke7 Nd6 Rf8 Bf7 Rfe8 Bg8 Kf8 Nhf7 Red8 h8Q Re8 Qh7 Re7 Nh8 Rf7 Ba6 Rf6 Be2 Rh6 Ndf7 Rh5 Ng2 Rh4 Qh6 Rg4 Qhh4 Qg6 Qhg3 Qf6 Qh2 Qe6 Nh4 Bd6+
R7/1p1pr2P/b1p2r2/5RKp/1n1bn2N/3P1rpQ/qP1NkBPB/Qr5R w - - 0 3 illegal: No proof kernel forced: wxLB
q1RQ2n1/P4Bp1/4pp2/1b3nN1/p1RP1p2/K3pbN1/P2bPrQR/Br1k4 w - - 0 1 illegal: Other
k1B1R3/pp4bK/Pr1bpp2/2P5/bpN2q1B/3n1P1P/2rp1nQ1/BN2RQ2 w - - 0 1 illegal: No proof kernel
RQn3b1/2ppp3/1b1Q1B1K/pB2R1qp/2PP3k/P1n1Pb2/1q2qr2/1NR1r1N1 w - - 0 1 illegal: No possible last move, all moves rejected
nQn2N2/4bK1R/B1q2P1b/1N1q1nRr/P2bBBB1/4r2P/kn3P2/q7 w - - 0 1 legal: proof: e4 f5 exf5 c5 g4 g5 d3 b6 d4 cxd4 Ne2 Bb7 Ng1 Bd5 b3 Bf7 b4 Bg6 b5 h5 gxh5 a6 hxg6 axb5 Qe2 b4 Qd2 Qc7 Qd1 Qd8 Ke2 e5 Kf3 Ke7 Ke4 Kd6 a4 Kc5 c4 d5+ Kd3 b3 h3 Kb4 f6 e4+ Kd2 b5 c5 e3+ Kd3 g4 g7 g3 c6 e2 c7 e1B c8B g2 Bg4 b2 Ne2 g1B Bh6 Bd2 Na3 b1Q+ Qc2 Nd7 Nf4 Bh2 Ne2 Nb6 Bf5 Be5 Rg1 Be7 Ng3 Qc1 Qd1 Qc6 Bf4 Rh5 Qf3 Kb3 Rd1 b4 Bc8 Ka2 Ne2 b3 Qe4 b2 Rg5 b1Q+ Nc2 Qa1 Bg4 Ra7 Qh7 Na8 Na3 Rb7 Rc1 Rb3+ Rc3 Qa5 Nb5 Ra3 Qh8 Be3 Kc2 Bd2 Rc4 Re3 Bg2 Bc1 Be4 Bd2 Nc7 Bc1 Ne6 Qd8 Nf8 d3+ Kd1 d2 Kc2 d1N Nd4 Qdd7 Nb5 d4 Rc3 Qcd5 Rc7 Nb2 Ra7 Bc7 Rb7 d3+ Kc3 Bb6 Rc7 Bbc5 Rb7 Q7c6 Rc7 Nh6 g8B Nf5 Be6 Nd6 Bc8 Bd4+ Kb4 d2 Ba6 Bd8 Rh7 d1N Qg8 Nc8 Qh8 Nc4 Qg8 N4d6 Qh8 Nf5 Qg8 Qe8 Qh8 Qd6+ Kc4 Be7 Qg8 Qdd8 Qh8 Qa5 Kd5 Nb2 Ke6 Qc6+ Kf7 Qd8 Qg8 Qdd5+ Ne6 Nab6 Bb8 Rb3 Rgg7 Bh6 Rg5 Re3 Bf4 Na8 Qd8 Na7 Qb8 Qe5 Nf8 Nc8 Kg8 Qed6 Kf7 Qdd5+
K3n1b1/Pnb1r1b1/pB2QBP1/N1RB1NR1/2P4r/3r2B1/3b3P/2n2k1q w - - 0 1 illegal: No proof kernel
7k/nB1NB2r/5qPR/5B2/nKB3P1/qbP1bb1n/Q3p1P1/nr2NR2 w - - 0 1 legal: proof: d4 c5 dxc5 a5 e4 f5 b4 fxe4 f4 axb4 h3 g5 fxg5 Qc7 Bc4 Qf4 Bf1 Qg4 hxg4 Ra6 Na3 Ra5 Nb1 Ra8 Kd2 Kf7 a4 Kg7 g6 h5 c6 d5 c7 e5 a5 b5 c3 d4 a6 h4 a7 h3 Qa4 d3 Ra3 h2 Ne2 b3 Nd4 b4 Ra2 b2 Be2 b3 Bf3 e3+ Ke1 e4 Bd2 e2 Bf4 d2+ Kf2 d1B Ke3 e1N Kd2 Nc2 Na3 b1Q Be5+ Nf6 Bd6 b2 Bg3 e3+ Kd3 e2 Kc4 Ne4 Nab5 Nc6 Qa5 Rb8 a8B Nc5 Na7 Qc1 Qa6 b1Q Bh4 Bb7 c8B Rh7 Bd5 Na4 Bf5 Na1 Be7 Kh8 Nc2 Qa3 Nc8 Bh6 Nb6 Na7 Nd7 Be3 Ne1 Qb6 Bg8 Bc6 Bb7 Bf3 Rb2 Bc2 Rb1 Qf6 Rf1 h1N Bf7 Qa2+ Kb4 Nf2 Bc4 Bb3 Rh1 Qb2 Rh6 Nh3 Nd3 Nb6 Qa2 Na4 Rf1 Qc1 Ne1 Qa3+ Ka5 Rd8 Nb8 Rd1 Nd7 Qb2 Kb4 Rb1 Rg1 Qc1 Rf1 Qa3+
r2b1r1K/1R3NRP/P1Nb2R1/1B4q1/1BPnn1kn/1Q4P1/4R2p/2r1q1n1 w - - 0 1 illegal: No possible last move, all moves rejected
3b4/RQ2PnkP/3pq1Nn/B1brP1n1/7r/R4q2/N2RKP1B/r1R3r1 w - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 g4 hxg4 a4 Qh4 axb5 Qg3 c4 Qh4 b6 Qf6 b7 Qd8 e4 f5 e6 d6 e5 Na6 b5 Rh4 Bg2 Nb8 Be4 Bd7 b6 Bb5 cxb5 fxe4 Qd2 Rh3 Qd1 Rh8 h4 g5 h5 a5 h6 c5 Be3 c4 Rh2 g3 Ke2 g4 Qc1 g2 Ra4 c3 Rb4 g3 Qc2 a4 Kd1 a3 Qb2 a2 Rd4 a1R Bf4 c2+ Kd2 c1B+ Ke2 e3 Nf3 g1Q Nh4 g2 Ng6 Qc8 Rh1 Nc6 b8B R8a5 b7 Nd8 b6 Rd5 Rd2 Nf7 Bh2 Be7 Nc3 Bd8 e7 Qe6 Bc7 Rh7 Qb4 Ba3 b8R Qb1 b7 g1R Qb3 Qbf5 Ra8 Bc5 b8R Qe4 Rb4 Qf4 Ra7 Qg3 Rbd4 Qf3+ Kd3 Rh8 Ba5 Rh7 Ra2 e2+ Kd2 e1N Ra3 Nd3 Na2 Nf4 Qb7 Nh3 Rdd3 Nhg5 Rd4 Rg7 h7 Ngh6 Rdd3 Rg4 Rc1 Rh4 Qa8 Nh8 Ke1 Kf7 Rd2 Rg8 Qc6 Kg7 Qb7 N8f7 Rb2 Nh3 Nf4 Kh8 Rd2 Rg5 Ng6+ Kg7 Kf1 Rg2 Ke1 Nhg5 Kf1 Qf4 Ke1 Rg1+ Ke2 Qf3+
4q3/1rN3Nk/1q2Qr1n/rp2n1bP/PrP1PRR1/NN5B/8/1nB2K1r w - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 c5 b4 axb4 f3 cxd4 Qd3 e5 Qd1 e4 fxe4 Qc7 Kd2 Qa5 Ke1 Qd8 c3 d5 Bg2 d3 Kd2 d4 Qa4+ Bd7 Nf3 Bb5 Qb3 Bc4 Kd1 d2 Bf1 Bd3 Ng1 Bc4 Kc2 d1N Kd2 d3 Ke1 Nb2 Kf2 d2 Kf3 Bd3 exd3 Nd1 Ke2 Qa5 Qc2 Qc7 Qb3 Qd8 a4 f5 h4 g5 c4 Kf7 d4 Kg7 h6+ Kh7 d5 b5 d6 f4 d7 g4 Qh3 f3+ Kd3 b3 Bg2 g3 Ra3 b2 Qe6 f2 Ke2 f1R Rf3 Be7 Rf4 Bg5 Na3 b1R Bh3 g2 Nf3 g1Q Nd4 Qe8 d8N Ra5 Nb3 Qb6 Rg1 Nd7 Rgg4 Ne5 h5 Rf3 Na1 Rb4 Nb3 Rf1 Nd4 Rh1 Nb3 Rh2+ Kf1 Nc3 Qf5+ Ng6 Ne6 Nb1 Qd5 Ne5 Nc7 Ne7 Qe6 Rf8 Qc8 Ng8 Qe6 Kh8 h7 Rf6 Rg1 Kg7 h8N Nh6 Nf7 Kg8 Rg2 Kh7 Nd8 d1R+ Ke2 Rd4 Kf1 Rd7 Rg4 Nc3 Qc6 Rg7 Nde6 Nb1 Qd7 Rgf7 Ng7 Re7 Qe6 Ref7 Nd5 Rb7 Nc7 Rh1+
3rNQRR/5Prr/q2P4/B2R1PR1/3K1brN/b1rrr3/Pp2k1b1/7B w - - 0 1 illegal: No possible last move, all moves rejected
1R3Q2/PN4K1/5N2/1bbR1bpB/bnb1n3/BRR3PP/P4q2/nbn1k3 w - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 a5 bxa5 e5 Ba3 exf4 Bb2 Ke7 Bc1 Ke8 Nc3 h5 Be3 b5 Nb1 Ra6 Bd2 Rg6 Bc1 Rg3 hxg3 Bd6 Nc3 Be7 Nb1 Bf8 Nf3 g5 Rg1 h4 Rh1 h3 Ng1 h2 Nh3 Ba6 Ng1 Rh3 gxh3 Bc8 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kd3 Ke5 c4 d5 e4 f3 a6 f2 c5 f4 c6 f3 c7 b4 a7 b3 Ne2 b2 Qe1 Nf6 Bd2 Na6 Ba5 Nb4+ Kd2 d3 Ke3 d2 Nc1 d1B Nb3 Bf5 c8R Qb6+ Nc5 Ba4 Be2 f1B Nc3 f2 Bh5 Bfb5 Rd1 b1B Qf1 d4+ Kf3 d3 Nb7 Kd4 e5 d2 e6 Qc5 e7 Ne4 e8R Bd6 Rg1 h1N Nd5 Qb6 Rc3 Bc5 Rb3 Qf6 Rc1 d1N Rcc3 Ne3 Rb8 Nec2 Bc7 Qf8 Nf6 Na1 Bf4 Qf7 Bc1 Bc4 Ba3 Bcb5 Qc1 f1B Qf4 Bfc4 Rf1 Nf2 Rd1+ Nfd3 Rd2 Bh7 Kg4 Bg6 Qd6+ Ke3 Rd1 Ke2 Qf8 Nc1 Rdd8 Bh7 Rd5 Bg8 Kf5+ Ke1 Qd8 Qf8 Kg6 Be6 Qd6 Qf7+ Kh6 Bf5 Qf8 Qe8 Kg7 Qd8 Re5 Qd4 Rd5 Qf2
1q2BqR1/K1Pp1R2/1B2PnNr/pN1Pn2k/1r3P2/4b2B/b4r1B/4qQ2 w - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 e5 a4 h5 axb5 f6 d4 h4 d5 h3 Qd4 Bb7 gxh3 Ba6 h4 Bc8 h5 exd4 e5 f5 Ra3 Qg5 Re3 Qd8 Re4 fxe4 Ke2 Kf7 h4 g5 c4 a5 c6 e3 Kd3 g4 e6+ Kg7 b6 Kh6 b7 g3 c5 g2 Kc4 d3 Kb5 d2 c7 d1R Kb6 Rd3 c6 Be7 Nf3 g1Q Nc3 Na6 b8B Rh7 Bh3 Bd6 Ne5 Rh8 Nb5 Bb4 Ng6 Qg2 Rf1 Kh7 h6 e2 h5 e1Q Be3 Qf8 f3 Bb7 c8B Qa2 Bh2 Bd2 c7 Rb8 Ka7 Qab1 Bb6 Nb4 Rf2 Bc6 Ba6 Nf6 Rf1 Be3 Rf2 Kg8 h7+ Kg7 Rf1 Kh6 Rf2 Kg5 h6 Rd2 Rf1 Rg8 h8Q Nd3 h7 Rf2 Qg7 Ne5 h8R Qb2 Qf7 Rg7 Rg8 Rh7 Na3 Rh8 Bd3 Ba4 Nb5 Bb3 Bdf5 Kh6 Bfg4 Ba2 Bh5 Nh7 Qf5 Nf6 Qd3 Kg5 Qc4 Rh6 Qe2 Rg2 Rf2 Qbb4 Qf1 Qbe7 Nc3 Qee8 Nh4+ Rg6 Bd4 Rb4 Nb5 Nh7 Bc5 Kh6 Bb6 Rf6 Bg6 Qc8 Be8 Rfg6 f4 Kh5 Rg7 Qd8 Rf7 Nf6 Rf3 Rd2 Rg3 Rh6 Rg8 Rf2 Ng6 Qb8+
1B6/1np3bP/q5bP/b1R1PbN1/pPRQ2Bk/4r2N/1b1N4/1n1KN1r1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 g4 h5 gxh5 exf4 e4 Nf6 Qf3 Ng8 Qe3 fxe3 d4 Ke7 h4 Kf6 h6 g5 h7 a5 h5 g4 h6 Kg5 e5 f5 d6 f4 d7 f3 b6 g3 d5 f2+ Ke2 g2 d6 Nf6 b7 Ne4 Ra4 Na6 b8N Nac5 Na6 Nd2 Kd1 Rg8 Be2 f1B Bg4 Bg7 Nh3+ Kh4 Nb4 g1B Nd3 Nb7 Ne1 Qf6 d8Q Bd3 d7 Bg6 Rc4 a4 b3 Rb8 Bb2 Bf2 Bd4 Bg1 Ba7 e2+ Kc1 Bb6 b4 Ba5 Rg1 Ra8 Bb8 Rf8 Nc2 e1B Kd1 Bf2 Rg3 Bd4 Ne1 Bb2 Rgc3 Ra6 Rc2 Rg8 Rc1 Rd6 Rc5 Rd3 R1c4 Nb3+ Nd2 Re3 Qf8 Qf1 d8N Bcf5 Ne6 Qd3 Qf7 Qd6 Neg5 Qa6 Nb1 Nd2 Qd5 Rf3 Qd4 Re3 Nc3 Nb1 Nce4 Rg3 Nd2 Rg1 Qd6 Rd8 Qb6 Rd3 Qd6 Rc3 Qd4 Re3
Nr1B4/3B4/7n/1p1qk1KP/1Prp1RP1/3B1r1Q/q1b1BPnR/1q1r2N1 w - - 0 1 legal: proof: g4 h5 d4 b5 a4 h4 a5 f6 d5 g6 Qd3 Bh6 Qg3 hxg3 e4 f5 exf5 Be3 fxg6 Bb6 d6 cxd6 axb6 d5 Kd2 d4 Kd1 Bb7 Ke1 Bc8 Kd2 d5 h4 Kd7 b4 Kd6 c4 a5 g7 e5 h5 e4 c5+ Ke5 c6 e3+ Ke2 a4 Kf3 g2 c7 d3 b7 d2 Ra2 d1R Kg3 d4 Rc2 e2 Rc6 e1R Rf6 a3 Kh4 a2 Na3 a1Q Rh2 Bf5 c8B Qd5 Kg5 Bc2 Bd7 Nh6 g8B Re3 Bd3 Na6 b8Q+ Nc7 Rf4 Rf3 Bgh7 Ra7 Be2 Qaa2 Bhd3 Rc8 Qa8 Rb7 Qa4 Rbb8 Qb3 Qc5 Bd2 Nd5 Bc1 Ne3 Nc4+ Kd5 Nb6+ Ke5 Qa3 Qcd5 Na8 Rc4 Bh7 Re8 Rf5+ Kd6 Nh3 g1Q Kg6 Ng2 Bg5 Rfd3 Rf4 Rb8 Bd8 Ke5 Kg5 Rb1 Bg6 Qc1 Ng1 Rbb3 Bh7 Rd1 Be4 Rg3 Qf3 Rh3 B4d3 Qcb2 Qg3 Qbb1 Qh4 Re3 Qh3 Rf3
r2nR1N1/4pnr1/P1n3kB/1rP3r1/2PBn3/P1B3R1/2p1Br1b/QN2K3 w - - 0 1 illegal: No proof kernel
2n1R1RR/1k6/qr3nN1/1B2P1QP/brpPPbB1/7p/N2Kp3/1b2R2r w - - 0 1 illegal: No proof kernel
b2Q4/b4R2/4NpqP/RBr2Rr1/1p3p1P/2pP3N/nb1k1P2/1K1n1B1R w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 gxh5 d5 cxd5 Bf5 d4 Bd3 exd3 f6 Bg5 f5 Bf6 gxf6 Kd2 Kf7 Kc1 e5 a4 c5 h4 b5 d6 Ke6 d7 Kd5 h6 e4 a5 e3 a6 f4 a7 c4 Kc2 e2 Rh2 e1B Ra5 b3+ Kc1 b2+ Kc2 Na6 Rh1 Bc3 Bh3 Bc5 Na3 b1B+ Kc1 Rc8 Qe1 Ba2 Nc2 Nb4 Bf1 Ne7 Nh3 Nf5 Qe7 Qe8 Qd8 Qg6 a8B+ Rc6 Bb7 Ne3 Ba6 Bb3 Kb1 Bb2 Bb7 Na2 Ba6 b4 Bb5 Kd6 d5 Ke5 d6 Rg8 Nd4 Ba7 Ne6 Rc5 Qe8 Ba4 d8R Nd1 Rd7 Rg7 Qd8 Bb3 Nc7 Kd4 Ne6+ Kc3 Rf7 Kd2 d7 c3 Qf8 Qe4 d8R Rgg5 Rd5 Qg6 Rf5 Bd5 Qd8 Ba8
rNQn4/2q1P3/n1N2RPn/3r1Bb1/nN3b1B/R6n/2K2PPk/q3Nq1b w - - 0 1 illegal: No proof kernel
7r/2P2nB1/NnRPqr2/1K3b1b/1nrRP1P1/B1B1bq1B/2k5/3nQNn1 w - - 0 1 illegal: No proof kernel
6rr/1P1NB3/n1P2bqn/q2Br3/r1bb2Pk/1NN2R2/r2Q3P/RNK2n2 w - - 0 1 illegal: No proof kernel
1r1RnbNb/1P3Nnr/8/2b2PQb/1P1B2Kb/b1nq2R1/2k2BP1/2B3qB w - - 0 1 illegal: Other
2n5/P1B3q1/2BK3n/RQP2bbN/2b1N1rP/rn1nk3/Pr1bb1B1/3B2R1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 c4 f5+ Kd3 d5 e4 b5 h4 f4 a6 g3 c5 g4 Ne2 f3 Bd2 g2 Na3 g1R Qc1 b4 Bg2 b3 Qe1 g3 Rh2 b2 Nc2 b1N Bh6 f2 Qa5 f1B Bh1 g2 Qe1 Nd2 Qb1 Nd7 Qb5 Nb3 Rd1 Qc7 Bg5 Nh6 Na3 Nb6 Bd8 Be7 Rh3 Bg5 Nc4 Qg7 Nd2 Rf8 Rg3 Rf2 Bc7 Bd7 Rc1 Nc8 Rc4 Ra7 Ra4 Ra8 Ra5 Ra7 Kc2 d3+ Kc3 d4+ Kc4 Ra8 Rg4 Ra7 Ng3 Re2 Nf3 d2 Nh5 d1N Nd2 d3 Rg3 Nf2 Rg4 Ke7 Kd5 Bf5 e6 Ra8 e5 Ra7 Nf3 Rb2 Nd2 Be2 Ne4 d2 Kc6 d1B Kd5 Nd3 Rg3 Kf8 e7+ Kf7 e6+ Kg6 Rg4 Bf1 Rg3 Bde2 e8B+ Qf7 Bc6 Qg7 e7 Ra8 Nd6 Ra7 Nf4+ Kf6 e8B Ra8 Bh5 Ra7 Kc4 Ke5 Bg4 Ra8 Nh5 Ra7 Nf6 Kf4 Kd5 Ra8 Bf3 Ke3 Nde4 Rb8 a7 Rb7 Qb4 Rb6 Nh5 Ra6 Rb5 Ra4 Ra5 Ra3 Qb5 Ndc1 Bd7 Bc4+ Kc6 Bfe2 Be8 Nd3 Rg4 Bf1 Bd1 Be2 Bd7 Rf1 Be8 g1B Bg2 Rf4 Bd7 Bf2 Be8 Be1 Bd7 Nb6 Kd6 Bd2 Bc6 Bd8 Bf3 Bg5 Rg1 Rg4 Bg2 Nc8#
1qrb1qNn/Pn4Pb/1Br1N1r1/nr2P1K1/4RrNQ/1B3RP1/6N1/r1k5 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 a4 Kd4 d3 f5 d6 b5 g6 c5 a5 h5 a6 h4 a7 b3 g7 h3 g3 b4 e5 b2 d7 b3 Rh2 c4 Bg2 c3 Ra3 c2 Nd2 Kc3 d4 b1Q d5 Nc6 d6 Be7 Ra2 b2 Nf1 Qf8 d8N Nh6 d7 Na5 Bh1 Nf7 Be3 c1N Rd2 h2 Nb7 Bd8 Qa4 Nd3 Nd6 Nc5 Qe4 Rh6 Rd1 Ncb7 Bg2 h1R Bc5 Nh8 Ne8 Rc6 Rd3+ Kc2 Ra4 Kc1 Nf6 Rh6 Ng8 Rhf6 Bb6 Rb8 Kf2 f3 Ke3 f2 Nh2 f1R Qh4 f4+ Ke4 f3 Nh3 f2 Nf4 Rg1 Ng4 f1R Bh3 Rf3 Ng2 R3f4+ Ke3 Rd1 Rb3 Rd5 Re4 Rb5 Rc3+ Qc2 Rb3 b1R Ra3 Ra1 Rc3 Bc7 d8N Bf5 Ne6 Bd8 Ra3 Qb2 Rd3 Rf2 Rb3 Rbc8 Rd3 Rd2 Kf4 Rf2+ Kg5 Rf4 Rf3 Bh7 Ne1 Rc3 Bf1 R3c4 Ng2 R4c6 Bc4 Qbb4 Bb3 Qbd6 Re2 Qb8 Re4 Rg6+
Bq5Q/B1Nq3R/b2nq2N/r1P1r1Rr/1k1N3b/3KP3/1q2P1Pr/n4N1r w - - 0 1 illegal: No proof kernel forced: bxLB
rrb2R1b/P1br2Q1/RB1b1qNK/NP1nn3/1PB1b1q1/6P1/1kN5/1r2N3 w - - 0 1 illegal: No proof kernel
3r3R/8/1B1nR1b1/QRnrNq1n/2b2PB1/PPK1b2N/3rb1nP/R2q1k2 w - - 0 1 illegal: No proof kernel
r5q1/R1Bq3b/b2P4/7K/1qP1PbR1/1r2k1n1/B2rrqPN/1nN1RQR1 w - - 0 1 illegal: No proof kernel
1n2k3/P2NP1K1/1rn1BB1P/bn6/Q1RnP2n/bq1n4/1NB2bb1/RB1r4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 f5 Kg3 d5 Kf4 g5+ Ke3 b5 Kd4 g3 h4 f4 c4 b3 a4 g2 e4 b4 h5 b2 c6 g4 e6 b3 Ke5 d4 h6 f3 c5 f2 c7 d3 c6 d2 a5 g3 a6 Ba3 a7 Qd5+ Kf4 Ne7 Nc3 b1N Ba6 f1N Rh5 b2 Rg5 Qb3 Ke5 Ne3 Kf6 Nc2 Rg4 Nd4 Nf3 g1B Ne5 g2 Kg7 Bf2 Nd7 g1B Na4 Nc3 Rg2 b1N Bd3 Ncb5 Bb2 Bh2 Qc2 d1N Bc3 Nd2 Nb2 Ba6 c8B N2f3 c7 Nec6 e7 Nh4 Rg5 Bf4 Rc5 Bd2 Rc4 Rf8 Bb7 Rf6 c8B Re6 Nc5 Rd6 Be6 Rd8 Nd7 Bde1 Na4 Nb2 Qd1 Bd2 Bc2 Nd3 Bb2 Ba5 Bb1 Ncb4 Bbd5 Nb4c6 Bc3 Bc8 Nb2 Ba6 Ne5 Rd7 Qc2 Rb7 Nd7 Rb6 Qd1 Qa2 Qa4 Qb3 Bg4 Bc8 Bd1 Ba6 Bdc2 Bc8 Ne5 Bh3 Be6 Bg2 Nd7 Na6 Bd2 Rd8 Bg5 Nab8 Nc5 Rd5 Bf6 Rf5 Nd7 Rf3 Rc3 Re3 Rc5 Re1 Rc4 Rd1
6N1/2R5/1pB1b1nr/1P2Nn2/1k1b1PPB/qn6/1PR2Q1K/rbNqN1rq w - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 g5 h4 d5 cxd5 gxh4 Ke2 Qd7 Ke1 Qb5 axb5 Bh6 Ra5 Bg7 Ra1 Bf8 f4 Kd7 Kf2 Kd6 g4 Kc5 Kg2 a5 d4+ Kb4 d6 h5 d5 c5 d7 e5 d8N a4 d6 a3 d7 a2 Qd6 h3+ Kh2 e3 Qd5 h4 Qg2 e2 Qc6 e1Q Qf3 e4 Qg2 b6 Qf2 c4 Nf7 c3 d8N e3 Ne6 e2 Nfg5 c2 Qg3 Nh6 Qg2 Nf5 Qf3 Nd7 Nd8 Bc5 Bg2 Qd1 Be3 c1N Qf2 e1R Na3 Nf8 Bc6 Be6 Ngf7 Ng6 Ne5 Nb3 Ndf7 Bd4 Rc1 a1Q Rc2 Rh6 Ne2 Rg1 Nc1 Qa2 Nb1 Qa7 Nd2 Qe7 Ndf3 Ra1 Ne1 Qa7 Be4 Qa3 Bc6 Bd5 Qg3 Be6 Bf2 Bd7 Qe3 Rh5 Nh6 Bc3 Ng8 Be6 Be4 Bd4 Rc7 Rf1 Rg1 Rh6 Kh1 h2 Kg2 h1B+ Kh3 Bf3 Bc6 Be4 Rg2 Rg1 Bg3 Bb1 Rc2 Nh8 Qf2 Ng6 Kh2 h3 Bh4 Rg3 Kh1 h2 Qe2 Rf3 Kg2 Rf1 Kh3 h1Q+ Qh2 Qd5 Qf2 Rg1 Kh2 Qh1+
4b1b1/1r1n2qB/2b2bN1/3P1RR1/1N3BKB/P3nBP1/Qbpr1knP/r7 w - - 0 1 illegal: No proof kernel
N5nr/qRB5/rBP3P1/4n1n1/2R1BbP1/1N1Q2Pq/BkqpK1b1/n2n4 w - - 0 1 illegal: No proof kernel
Bn1bb3/NN1RQ2B/n1PP3k/p6q/2b2b1r/1b1P1rqP/K3r2B/2B4R w - - 0 1 illegal: No possible last move, all moves rejected
8/KBr1r3/1pPN2P1/3Pnr1r/Bn1N2r1/Q1nb1BP1/q1q2R2/2BRb1k1 w - - 0 1 illegal: No proof kernel
1rqr3b/1b2npP1/N2n1Q1b/2b2b2/KBB1B1k1/2RPqNn1/P1P1B3/2R5 w - - 0 1 illegal: No proof kernel
5n2/PK1kB2R/rnnb2BB/RPq1prP1/1r1N4/1b3rq1/1B2QP2/3N3r w - - 0 1 illegal: No proof kernel
1b4k1/1b1NBnN1/2nr1B2/B2PPp2/3b1PB1/1KPR3r/1Q2rqRq/2rn4 w - - 0 1 illegal: No proof kernel
Nb3nn1/r3bqB1/1K4RP/2pkr3/bb3r2/NR5R/PPB1P2Q/n1R2q2 w - - 0 1 illegal: No proof kernel
1nn1R1B1/6Br/1pBB1q1q/6r1/bb1P2Q1/2PKR1b1/nrN1PP2/b2N1k2 w - - 0 1 illegal: No proof kernel
3nbn2/1qRb4/P1q1Pr2/4bprN/2N2r1q/2PR3B/1q1R2RP/Q1B1K2k w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 a4 Ke7 e4 Ke6 a5 f5 h6 d5 a6 b5 c3 g5 h7 g4 Be3 b3 Ke2 g3 Na3 g2 Bf2 b4 Nh3 g1R Be3 b2 Bf2 b1Q Qd3 b3 Qf3 b2 Bg3 d3+ Kd2 d4 Bh4 Ne7 Nb5 Bg7 Be1 Nec6 Na3 Qh4 Qd1 Nd7 Ra2 Rg5 Rg1 Nd8 Nc2 Nf8 Ra1 Bd7 Ne3 Rc8 Qc1 Rc4 Ra2 Rb4 Kd1 d2 Rg2 Rg8 Ke2 d1B+ Kd2 d3 h8R B1a4 Nc4 Rg6 Rh7 Rf6 Bf2 Be8 Ke1 Bad7 Qd1 Qc2 Qa1 Qa4 Bg3 Qc6 Rd2 Bh8 Bf2 Rg3 Be3 Ra4 Rg2 b1Q+ Bc1 Qbb7 Rad2 Rg5+ Rdf2 Bg7 Nf4+ Ke7 Nh5 Ke6 Rg1 Qb2 Bh3 Bh8 Rg3 Qbb7 Rfg2 d2+ Ke2 d1Q+ Kf2 Qdg4 Ke1 Qf3 Rd2 Qg2 Rd3 Bc8 Rc7 Qgb2 Rd2 Bcd7 Rd3 Kf7 e6+ Kg6 e5 Rb4 e7 Kh6 Na5 Rf4 e6 Rf7 Rd2 Be5 Nc4 Rf6 Ke2 Rgg6 Rd3 Kg5 Bf1 Kg4 Bg2 Bf7 e8R Rg5 Re7 Bfe8 Rg7 Qh3 Ke1 Kh4 Bf3 Qg4 Rg6 Kh3 Be2+ Kg2 Bf1+ Kg1 Bh3 Kh1 Rh6 Rg8 Rg6 Qh4+ Rgg3 Qg5 Rgg2 Qh4+ Kd1 Rg3 Ke1 Rg5+
2Kb1B1r/r1nN1P2/q1B1nP2/p2nQ3/rq1q3r/1RbP1B2/P4R2/k2B3N w - - 0 1 legal: proof: g4 c5 e4 g5 b4 cxb4 h3 d5 Nc3 f5 gxf5 g4 Nb1 g3 Bb2 Bd7 Ba3 dxe4 Bc1 Bb5 Rh2 Be2 Rh1 Bg4 hxg4 Qa5 Ne2 Qc7 Ng1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 a5 Ke6 Kd4 c4 b5 f4 h5 c5 e3 f6 g2 f7 e2 f5 e1N d3 b3 g5 b2 g6 b4 f6 h4 g7 h3 c6 h2 c7 b3 c8B Ra7 Qf3 Nc2 Bh6 Qd6+ Kf5 e5 Qe2 e4 Qd2 e3 Bb7 e2 Qe1 Be7 Nd2 Kc3 Rb1 Na6 Ngf3 g1Q Ne5 Bd8 Bf3 Nc7 Qg3 e1B B1e2 Qa6 Bd1 Qc5 Rf1 h1R Rf2 Rh4 Nf1 Bd2 Qf4 Qcb6 Ng3 Ne7+ Kg5 Nd4 g8B Be1 Bh7 Bd2 Bc6 Ned5 Be4 Qc5 Bf8 Qcc4 Ra1 b1Q Bef3 Kb2 Nh1 Qc5 Bde2 Qe1 Bd1 Qe3 Rc1 Qb4 Rc3 Ka1 Kg6 b2 Qf5 b1R Ra3 Rc1 Rb3 Rc4 Qe6 Qc5 Qe8 Nc2 Kf5 Ra4 Qe6 Bc3 Qe7 Na8 Ke6 Nac7+ Kd7 Nd4 Qd6 Qb4 Qe6 Qac4 Kc8 Qcb5 Qf5 Nde6 Nd7 Qed4 Qe5 Qa6+
3NQN1K/1B2nPPR/1Pr1p1rB/R1P1nn2/q7/b1r4k/2nB1B2/b1q2b2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 d5 Kh5 a5 f4 h3 b4 a4 g4 h2 c4 a3 b6 e6 b5 a2 b7 d3 b6 d4 Qd2 Ne7 Ne2 Ra3 Bg2 Nbc6 b8B Rc3 Na3 Rg8 Nc2 Ne5 Nb4 Qd7 Nc6 Ba6 Nd8 Rg6 Bb7 Qa4 Qc2 d2 g5+ Kg7 Bc7 d1Q Bd2 d3 Bd6 h6 Bc5 Qc1 f6+ Kh7 f5 Bb5 Rd1 h1N f7 Kg7 Nf4 Ng3+ Kh4 h5 f6+ Kh7 Rh1 Ba6 Bf2 Ngf5+ Kh3 h4 Qb2 Ng3 Qb5 Ngf5 Qe8 Bb5 Rb1 Ba6 Rb5 a1B Ra5 Bb5 Bde3 d2 Rh2 Nd7 Kg4 d1N Kh5 h3 Bd2 Nde3 Rh1 Ne5 Rh2 Bh6 f8B Nc2 f7 Ba6 Rh1 h2 c5 Bf1 Nc6 Bg7 Nd8 Bf6 Bg7 Bb2 Bh6 Ba3 Rg1 Bg7 Rg3 h1R+ Rh3 Bf6 Rh4 Rg1 Rh2 Rg8 Ng6 Rgg3 Rh3 Rgd3 Rh4 Rd6 Rh1 Rc6 Nf8+ Kh8 g6 Rg7 Rh4 Rg8 Bhf4 Kg7 Rh2 Bh4 Bh6+ Kf6 Rh1 Bg5 Rh4 Be3 Rh3 Bd4 Rh1 Rc4 Rh4 Ba1 Rh3 Rc3 g7 Rh8 Rh1 Rg8 Bhf4 Nd7 B4e3 Rh8+ Nh7+ Ke5 Kg5 Ke4 Nf8 Kf3 Rh6 Kg2 Bf4 Nc8 Kg6 Rh7 Rh4 Rh5 B4e3 Rg5+ Kh7 Nce7 Kh8 Rg6 Rh7 Ne5 Bh6 Kh3
NB1q1bR1/1b1qP1PK/r2Nk3/6rQ/BP2P1bR/b1Bn2nr/3Bp3/5q2 w - - 0 1 illegal: No proof kernel
3r3R/n1Pq4/3b1qqN/n5N1/2PKQP1p/B3R3/rNb2P1q/1k1BbN1r w - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 gxh4 b4 f5 b5 f4 e3 a6 exf4 axb5 Bc4 b4 Be2 Ra4 Bf1 Ra8 Kd2 Kf7 Kd3 Ke6 a4 Kf5 c4 d5 g3 e5 a5 b5 c6 h5 c7 b3 a6 e4+ Kc3 b2 a7 e3 g4+ Ke4 g5 e2 g6 e1B+ Bd2 b4+ Kc2 d4 g7 d3+ Kb3 h3 Be3 h4 Qg4 d2 Bg2+ Kd3 Qd7+ Bd6 Ra3 h2 Nh3 Qf6 Ng5 Nc6 Bc5 Nge7 Qe8 Bf5 g8N Nc8 Rg1 h1Q Nh6 Qh2 Bf3 d1R Qe7 Rd8 Nd2 Bh7 Nf1 b1Q+ Ka4+ Kc2 Kb5 b3 Qe4+ Kb2 Rg3 Rc1 Bd1 Na5 Re3 Qd3 Ra2+ Kb1 Ba3 Be5 Kc5 b2 Qd4 Bd6+ Kd5 Rb8 a8N Na7 Nb6 Ra8 Na4 Qdf5+ Qe5 Qd7 Kd4 Bg6 Bc5 Bc2 Raa3 Nc8 Rad3 Na7 Ba3 Ka1 Rb3 b1Q Rb5 Ka2 Rc5 Qb6 Nb2 Qg6 Qf5 Kb1 Qe4 Qa6 Re5 Qac6 Re8 Qf6+ Qe5 Qcg2 Rh8 Qgg4 Nf3 Qgg6 Ng5 Beb4 Bf3 Nb7 Ng3 Rh1 Nf1 Be1 Bb4 Nc8 Bd1 Ra2 Bc5 Na5 Ba3 Qff5 Qe6 Na7 Qe4 Qff6+
b1b2n2/2Pn2pq/1P1Qr3/k3PB1R/1n4qr/2NPR3/1bb3R1/KN2BrR1 w - - 0 1 illegal: No proof kernel
B1b5/1npRbbKB/N3P3/3B4/1PqqrnR1/2QnP2b/1N1rk2P/6Br w - - 0 1 illegal: No proof kernel
1B2nN2/nPq3PB/1rBqrP2/2bb1P1K/4qQp1/B1nRn3/R7/3N2rk w - - 0 1 illegal: No proof kernel
1Q2q1b1/8/B1PRBPrr/p1nP1P2/3Bn2n/kNb2KB1/3RNb2/1nn3b1 w - - 0 1 illegal: No proof kernel
2Bn2rB/2q1rq1q/5B1P/PPN1QN2/1n3brr/3b3R/kB2pK1P/2R2q2 w - - 0 1 illegal: No proof kernel
1RRn2r1/2NK1RB1/n3qRbp/P4b1P/2Qr2Pr/b7/P1rB1bkq/1N6 w - - 0 1 illegal: No possible last move
1k1K2B1/2bn1BR1/2P2P1Q/1qr2N1B/3b1p2/bR2Pn1q/1q1r1P2/N2b2qB w - - 0 1 illegal: No proof kernel
6Nn/R1R1p3/b1Bb1nR1/1Prnk3/P1rN4/1n1B1r1Q/2qrPK1P/q1R5 w - - 0 1 illegal: No proof kernel
2n1r1qn/2KP3B/4pb1b/4N1Pn/RqNR2b1/1rB3PP/Bb4Q1/k5nB w - - 0 1 illegal: No proof kernel
2q1q1N1/1r1R2B1/Pp1q4/3k1r2/nr2n3/1bqN1q2/PPBPn1B1/R3QB1K w - - 0 1 illegal: No proof kernel forced: bxDB
2K2Rqn/r2bb3/R2RP1n1/1B2kp1Q/q2n2bb/1P1P4/3RbP2/B2bN2N w - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 e3 gxh4 Qe2 e4 d3 exd3 Kd2 Bc5 Kc3 d2 Ra4 Be7 Ra1 Bf8 Kb3 d1B Rh3 a5 Qd3 d5 Rh1 d4 Qc4 d3 Kc3 d2 Qb3 Ra6 Ra2 Rd6 Ra1 Rd3+ cxd3 Qg5 Be2 Qe7 Bf1 Qd8 Kc4 Kd7 Kd5 c5 g4 h5 g5 f5 e4 c4 b6 c3 g6 a4 g7 h3 b7 a3 e5 h4 Qc2 a2 b3 h2 Ba3 h3 Bb4 Bg4 Be2 d1B Bf3 Ne7+ Kc5 Ke6 g8R Bd7 Qe2 c2 Ba3 c1N Bb2 Nbc6 b8R Nd4 Bc6 Rh7 Nc3 Rf7 Qf3 Nce2 Ne4 Nf4 Rb6 Nfg6 Ng3 Nh8 Ra6 Be2 Rd1 a1B Rd2 Qe8 Kb6 Neg6 Kb7 Be7 Rf8 Rh7 Rf7 Qg8 Rf8 Bh4 Bc3 Bb2 Kc7 Ba3 Ba1 Bae7 Kb7 Bd1 Qe2 Rg7 Nf3 Rh7 Re1 h1Q Bb5+ Kd5 Rg1 h2 Ne1 Qe4 Nh1 Rf7 e6 Ke5+ Kc7 Rg7 Qf3 Qa8 Rd6 Qa4 Qh3 Bhg5 Qh5 Bh4 Ng3 h1B Rf1 Bhf3 Nh1 Be8 Kc8 Bde2 Ng2 Rf7 Rc1 Bd1 Rcc6 Bfe2 Rb6 Bef6 Rbc6 Ra7 Ra6 Be7 Ne1 Bd7+
2qrqQ2/nN4P1/b2N4/q2Bp2r/nBBP1RB1/4P3/n1R3Pk/1Kqq3n w - - 0 1 illegal: No possible last move, all moves rejected
K1N2R2/1PB2nn1/2R3BN/2pn1r1P/bbB3nB/1QP1P3/1bbk4/1q1q2b1 w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 e5 g4 exd4 e3 Ra6 g5 Re6 g6 Re4 f3 hxg6 fxe4 g5 Bg2 g4 Bh3 Qf6 Bf1 Qd8 Ke2 Ke7 Kd3 Kf6 Kc4 Ke5 b4 g5 h4 f5 b6 d5+ Kb5 f4 c3 d3 h5 a4 b7 a3 Ra2 f3 Qd2 f2 Qe2 g3 Rh3 d2 Rh1 d1B Rd2 d4 Rc2 a2 Bg2 f1N Ba3 a1B Rh4 d3 Nh3 d2 Nf2 g4 Qc4 Na6 Kc6 Bb2 b8B Bf5 Kb7 Nh6 b5 Nb4 b6 Nd5 Ka8 Bb4 b7 Nf7 Qb3 Rf8 Bh3 Nh2 Bf1 g2 Bc4 g1B Rc1 Bc2 Rf1 d1Q Nd2 g3 Rg4 g2 Rg6 Ng4 Rc6 Be7 Bc5 Bd7 Bb6 Bb4 Bc5 Qc8 Be7 Qd8 Bh4 Qe7 Nh3 Qb1 Ng5 Qf6 Rf2 Qf3 Rf1 Qfd1 Rf2 Nd6 Rf3 Rf5 Nf7+ Ke6 Nh6 Ke5 Rf2 Ne8 Rf4 Ng7 Rf1 Rg5 Rf8 Be8 Nf1 Rf5 Ng3 Rf3 Ngf5 Bd7 Ra6 Ba4 Nd6 c5 Bc7 Rf5 Rb6 Bh2 Rc6 g1N Bf2 Nf3 Bh4 Ke6 e5 Bg1 Bcd8 Ng5 Bc7 Kd7 e6+ Ke7 Rb8 Kf6 e7 Ke5 Rf8 Nf7 Nc8+ Ke4 e8B Kf3 Bg5 Kf2 Bgd8 Ke1 Be7 Nh8 Bg6 Kd2 Bh4 Nf7
5nB1/1nbKBr2/2pb3Q/1k1b1R2/1NRP1b1N/1PP3PB/q1q2q2/1b2q2B w - - 0 1 legal: proof: e4 a5 f4 d5 a3 g5 fxg5 dxe4 a4 b5 g3 bxa4 g4 Ra7 Qf3 Rb7 Qe2 Rb3 Qd1 Rg3 hxg3 Qd7 Nf3 Qd4 Ng1 Qd8 Kf2 Kd7 Ke3 Kc6 Kf4 h5 Ke5 f5 g6 e3 d3 e2 g5 e1Q+ Be3 h4 b3 h3 g7 a3 g6 a4 Ne2 h2 Ra2 f4 Rg1 h1B Bd2 f3 Bh6 f2 Ra1 a2 Bg5 a3 Nd2 Na6 Rc1 a1B+ Kf4 e5+ Ke3 a2 Rg2 e4 Kf4 e3 Be7 Be5+ Ke4 a1Q d4 Nf6+ Kd3 Kb5 g8B Nd7 Ke4 Nac5+ Kd5 Rh7 g7 Qa2 Nf4+ e2 Nd3 Bf4 Nf3 Nb7 Ke6 c6 Nh4 Qda5 Rh2 Qad2 Bh3 f1Q Nb4 Qff2 Rg2 Qc3 Qd2 Bc7 Qh6 Qcd2 Bd8 Bfd6 Be7 Qdd1 Rg1 Bf3 Rf1 Nf8+ Kf7 Bg2+ Ke8 Bf5 Bd5 Bh1 g8B Rf7 c3 Bh7 Ra1 Bb1 Bf3 Qdc2 Bfg2 Qab2 Ra4 Qa2 Bd5 Qe3 Rf5 Q3f2 Be6+ Bd5 Bg2 Qef1 Bh1 e1B Bd7 Bd2 Be6 Nh7 Kd7 Q2e1 Rf2 Qg2 Bh3 Qh2 Rf5 Qhf2 Nd3 Be3 Rc4 Bef4 Nb4 Nf8+
1r6/np4k1/3q1Nr1/3qBP1q/RP2nBnN/2P1RP2/1nQBq1B1/bKr5 w - - 0 1 illegal: No possible last move, all moves rejected
rb2B3/Pp2N2R/q4P2/BN2qNQ1/4r1Rr/1Pqr4/1bqP1kb1/1n1K1N2 w - - 0 1 illegal: No possible last move
3R2R1/q4Q2/N4bp1/k4b2/3qnK1B/PPr1Nr1P/b1PnNpN1/1n1r3B w - - 0 1 illegal: No proof kernel
K2rnq2/N3NR1P/kPB1q3/3b3r/nq1NQ3/1p1n2B1/2PPrb1p/1RN5 w - - 0 1 illegal: No proof kernel
3n3k/1NN2bp1/1R4R1/Br1q1r1n/PP1p1q2/2P1b1P1/r2N1nq1/K1N2QB1 w - - 0 1 illegal: No proof kernel
K6R/1Rr1qp2/b2Pnpbn/q6Q/2P5/1P1P4/rr2N1Nn/1kBNN1bB w - - 0 1 illegal: No proof kernel
1R1B1Q2/1B1P1rrN/2q1Brk1/P3bq1p/KBP1bnP1/2p1n2q/7n/1N1R4 w - - 0 1 illegal: No proof kernel
1R2Kr1n/1P2p3/q1PPn2Q/B3r2R/1nB1k2r/1qPN3R/bR1b1p2/3b1N2 w - - 0 1 illegal: No proof kernel
1n1r1qBk/2n1Pb2/2b1Qrpb/2R1rNR1/n1PR2Pr/1R4P1/2pN1K2/5B2 w - - 0 1 illegal: No proof kernel
1Q1r1q2/1r1RpnbP/r4n2/NNn5/bP1b1K2/B2p1P1B/2BP1r1k/2B3R1 w - - 0 1 legal: proof: b3 b5 a3 b4 axb4 c5 Ra4 c4 Ra2 Ba6 Ra1 Bc8 e4 cxb3 g4 f5 exf5 h5 Ra4 hxg4 Ra3 Rh5 Ra1 Rh8 Ke2 Kf7 Ke3 Kf6 c4 Ke5 h4 d5 c5 g5 h5 a5 f6 g3 f3 g2 h6 b2 f7 d4+ Kf2 Kf4 h7 g4 c6 g3+ Ke2 a4 c7 a3 Ra2 d3+ Ke1 Bd7 c8B Nf6 Nc3 b1R Qa4 Na6 Qb5 Bg7 f8B Nc5 Be2 Ra7 Bd1 Rb7 Bc2 Be8 Qb6 Ba4 Bh3 Qc8 Nb5 Qf5 Rb2 a2 Qd8 a1B Ra2 Bd4 Qc8 Ra1 Ne2+ Kg5 Rg1 Kh4 Qb8 Qf4 Rf1 g1R Ra3 Rg2 Rg1 Rf2 Rc3 Ncd7 Rc7 Nc5 Rd7 Ra2 Ba3 g2 Nc1 Kg3 Nb3 Kh2 Na5 Rg8 Rf1 g1N Bc1 Ne2 Rg1 Nc3 Ba3 N3e4 Bc1 Bh8 Bg7 Ng5 Ba3 Nf7 Bc1 Nfe4 Bf6 Rd8 Be5 Be3 Beb2 Nf6 Ba3 Bd4 Qc7 Ng4 Qe5 Bb3 Bab2 Nfh6 Nc4 Re2+ Kf1 Ra6 Qb8 Bhg7 Ba3 Ba4 Na5 Rg2 Rd6 Qf8 Rd7+ Bde5 Ke1 Nf7 Kf1 Nf6 Ke1 Rg6 Kf2 Rg2+ Ke3 Rf2 Nc4 Rc7 Na5 Bd4+ Kf4 Rb7
1RRnB3/pn1R3p/1b2P1N1/nK1QPrrP/2R3q1/bB2rb1k/2P5/2Nn4 w - - 0 1 legal: proof: d4 b5 a4 bxa4 f4 e5 fxe5 g5 Bf4 c5 dxc5 gxf4 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 h4 Kg4 b4 f5 e4+ f3 h5 d5+ Kb5 a3 g3 d4 e6 d3 c6 f4 c7 d2 Qc1 d1N Bg2 a2 Rh3 f2 Qb2 f1R Nf3 Nh6 Qe5 Qg5 Nc3 Bb7 c8R Nd7 Ne2 Nf7 Qd5 Nd8 Nh4 f3 Nc1 f2 Ng6 Rg8 Rb1 a1B e5 Rb8 Rh4+ Kf5 Bh1 Nc5 Rc4 Qg4 Rb3 Re1 Rd3 f1N Rd2 Re3 Bf3 Qd4 g4+ Kg5 Rd3 Nd2 Be4 Ndb3 Bf3 Na5 Bh1 Kh6 g5+ Kg7 Bf3 Qg4 Qd4 Re1 Rcc3 Nf7 Rc7 Ne3 Nf4 Nac4 g6 Kh6 g7 Kg5 Bd5 Na5 Bb3 Kh4 Rc4 Ne4 Ka4 Nd1 b5 Re3 b6 Nc5+ Kb5 Bf3 b7 Rc8 b8R Ncb7 Qe4 Ba3 Rdd7 Bd4 Qd5 Rcf8 R7c5 Nfd8 Rcc8 Rh8 g8B Rf5 Bf7 Bb6 Bg6 Rg8 Be8 Rgg5 Ng6+ Kh3
1nbbK1r1/kB2b2N/q1n1R1Br/r1q4P/2P1pNbB/3P1R1Q/2B1P1p1/8 w - - 0 1 illegal: No proof kernel
5QB1/6KN/r2Bn2p/r1RrP1Bk/1P1q1P2/rNP1B3/bp2Rn2/2bb1q2 w - - 0 1 illegal: No proof kernel
2bR1Q2/1k2BnN1/1r1P2N1/pr1qPn2/4pPKR/n7/1R1P2r1/qB1rb1R1 w - - 0 1 illegal: No proof kernel
3b1KR1/n1R3q1/p1P2b1k/1p6/B1P1b2P/1n2N1N1/1PrB1nq1/b3RrQR w - - 0 1 illegal: No proof kernel
7R/1NB1k1pB/P3n1rp/R3KP1n/7n/3P1Q2/1R1qb1nP/1RbqNrq1 w - - 0 1 legal: proof: e4 d5 g4 f5 gxf5 a5 b4 axb4 c4 bxc3 exd5 Ra7 Qf3 Ra3 Qd1 Ra8 Ke2 b5 Kf3 c5 Ke4 e5 a4 h6 f4 c4 f6 b4 a5 b3 d6 b2 Nh3 c2 Qe2 c3 Qf2 Nd7 Bc4 Ra6 Kf5 e4 Bd3 e3 Ra4 e2 Ng1 e1N Na3 b1N Nf3 Ng2 Nc4 Nc5+ Ke5 Bg4 Ne1 Be2 Bh7 Ne6 f7+ Kd7 Bb2 c1Q Qf3 c2 d3 Qd2 Bd4 c1Q Bb6 Nf6 Bc7 Nh5 f5 Qcd1 Rb4 Q8g5 Rb2 Be7 Rg1 Rc8 f8R Qg6 Rh8 Bg5 Rh1 Rc6 a6 Rb8 Kd5 Rbb6 Na5 Rc1 Ke5 Rbc6 Bg8 Ke8 d7+ Ke7 d8R Bf4+ Kd5 Qg3 Rf1 Qf2 Rh1 Qg1 Nb7 Qde3 Rb8 Qc2 Rd8 Nf8 Qh3 Qf1 Nf3 Rg6 Bh7 Ne6 Rhf8 Nd2 Rh8 Qff2 Re1 Qg1 Rd6 Qb1 Rc6 Qc2 Rc5 Ra1 Ra5 Qb1 Nd4 Nf3 Nc2 Nfh4 Qf3 Qec1 Rf1 Be3 Ke5 Qe1 Rb6 Qeb4 Rd1 Q1b3 Rd2 Rf1 Ne1 Qd1 Rda2 Bc1 Ra1 Rg4 Rb1 Qbd2 R6b2 Rg6
7r/1Nn1RP1k/1Q3K2/q2P2nr/2P1q1P1/BRb1qn1b/1Bp1N1p1/1BB4n w - - 0 1 illegal: No proof kernel
4q1Nn/1k1Bp1NP/4R2r/Bn2KNp1/b1b2nN1/5rP1/1P5P/1nRQ1b1q w - - 0 1 illegal: No proof kernel
2B2n2/2R1prPr/3q1Pn1/1P1Q2N1/1B1K1Pb1/bBn4N/1qq3p1/1BRqk3 w - - 0 1 illegal: No proof kernel
4bR1Q/1BP2P1R/3KqB1n/3B1b1k/PNq1r2p/3rB1P1/p2bb1n1/2n1N3 w - - 0 1 illegal: No proof kernel
R1N2B2/1kpp1q1b/r2q3P/1nn3N1/4RB2/1PPnQb2/R1b2P2/bRr2K2 w - - 0 1 illegal: No proof kernel
Qb2b2R/p2P1R1P/Pr4bB/1P1p2q1/3q4/N5BK/kn1n3R/1NR1n1nr w - - 0 1 illegal: No proof kernel
1Bb1N3/2bB1PP1/p1N1b1R1/P1n2pr1/3n2n1/3NPQ1q/N1K4k/bRn2r2 w - - 0 1 illegal: No proof kernel
N2N4/p3q2q/PPB1R3/n3r1N1/1nqNpnkB/3QK1P1/1P2R3/1rr3bq w - - 0 1 legal: proof: f4 d5 c4 g5 e4 dxe4 h3 b5 cxb5 Bg4 hxg4 gxf4 Ke2 Kd7 a4 Ke6 d4 h5 b6 f5 a5 c5 g5 h4 a6 e3 g6 c4 g7 f3+ Ke1 e2 Kd2 e1N Qb3 f4 d5+ Kf5 d6 e5 d7 c3+ Kd1 f2 Ke2 f3+ Ke3 c2 Rh2 h3 Ra5 Qe7 d8N Nd3 Qc4 Nf4 Nc3 Kg4 Nb5 e4 Be2 f1Q Qa4 Nf6 g8N Nc6 Bd2 c1R Qd1 Rb8 Be1 N6d5+ Kd2 Rb1 Nc7 Rh5 Na8 Re5 Bb5 Qc4 Ne2 Ndb4 Ke3 f2 Qd3 f1Q Bh4 Qh1 Nd4 Rc8 Ba4 Rc7 Rc5 Na5 Rc6 Bg7 Re6 Bf6 Bc6 Rc8 Bf2 Bh4 Be1 Bg3 Nh6+ Kh4 Rf6 Qc3 Bb7 Qf1 Nhf5+ Kg4 Nh4 Qcc5 Re6 Qh7 Qb3 Rc7 Nf3 Qce7 Ng5 Rcc1 Bc6 Qb5 Qd3 Qc4 Rh1 h2 Rf1 h1Q Rf2 Qh8 Re2 Bh2 Bh4 Qhh7 g3 Bg1+
B4NQq/2N1R3/p3rP1k/1b1KB3/3b1n1b/PP3B2/r1BpqrrP/2R4q w - - 0 1 illegal: No proof kernel
RbB2NQ1/3R2B1/P1b2r1B/5P2/nk4bp/6pP/2BPb1rr/bK1bNq2 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 Nc6 Bf1 Nce7 Nc3 exf4 Nb1 f3 Bg2 f4 Bf1 Nf5 gxf5 Qd6 Qa4+ Qd7 Qd1 Qd8 e4 Kd7 a4 Kd6 e5+ Kc5 e6 b5 a5 g5 d6 h5 a6 f2+ Ke2 b3 Kd3 f3 d7 b4 e7 g4 e8B g3 Bf7 b2 Kc2 b3+ Kc3 Ne7 Bg6 Nd5+ Kd3 Kb4 Nc3 b1B+ Qc2 c5 Nd1 b2 Ne3 c4+ Kd4 c3 Kd3 Nb6 Bf7 Na4 Nh3 Bd6 Nf4 Bb7 Ne6 Bc6 Ra3 Bb8 Nf8 Qc8 Be2 f1B d8B f2 Bg5 Bh3 Bh6 f1B Ng2 Bg4 Be6 Ba2 Qb1 c2 Ne1 Bb3 Qa2 b1R Bb2 c1B Bbg7 Bd1 Rc3 Qb7 Bc8 Bb2 Qg8 Ba1 Rc5 Qc7 Rd5 Qf4 Rd7 Rh7 Bd4 Rf7 Bdg7 Rf6 h3 h4 Rh2 Ra7 Rf2 Rc7 Rf3 Rb7 Re3 Rb5 Ree7 Re5 Ra7 Qf2 Red7 Qg1 Ra8 Re4 Ne6 Rf4 Nf8 Rf2 Bb7 Rh2 Bc8 Bfg2 Bf1 B2f3 Bg2 Bde2+ Kc2 Qf1 Bh1 Rb3 Bg2 Re3 Kb1 Bd1 Bh1 Bfe2 Be4 Rf3 Bd3 Rff2 Bc2 Rfg2
RK2bRQ1/1n2RqPp/5nbn/1qB1p3/2B2nr1/2kPP2b/1b5P/N4RN1 w - - 1 2 legal: proof: c4 g5 a4 b5 axb5 d5 Ra2 dxc4 Ra4 Bg7 Ra1 Bf8 b4 a5 f3 a4 f4 Ra5 bxa5 gxf4 Kf2 Kd7 Kf3 Ke6 Ke4 c5 g4 f5+ Kf3 Kd5 b6 Kd4 g5 e5 a6 c3 b7 a3 a7 c4 a8R a2 g6 c2 Bh3 c3 Qe1 Nh6 Ra7 Qd5+ Kf2 f3 Kg3 f4+ Kh4 f2 Kg5 f1B Kf6 f3 Ba3 c1Q Ra8 f2 Bb4 c2 Be7 Bd7 Bg4 Rg8 Bh5 Be8 Na3 Qb5 Ke6 Bh3+ Kd6 f1B Kc7 Nd7 b8R Nf6 e3+ Kd3 Rb1 a1N Bc5 Nb3 Qg3 Na5 Rb7 Qe1 Kb8 c1N Nc2 Qf2 Na1 Ne2 Rd1 Bfg2 Rf1 Nf4 Qg5 Kc4 d3+ Kc3 Bd1 Bd5 Bb3 Be4 Bc4 Qf3 Qg4 Rg7 Qe6 Bef5 Rf2 Qd5 Qg8 Qf7 Bb6 Bc5 Re7 Nb7 Rf1 Ba3 Bc5 Bb2 Rf3 Qd5 Rf2 Rf7 g7 Bg6 Nf3 Rf8 Rhf1 Qf7 Ng1 Bc6+ Ka7 Rb8 Rf3 Be8 R3f2 Rc8 Rf3 Rc7 Kb8 Rd7 R3f2 Rd4 Ra6 N4d5 Re2 Nd7+ Ka8 Qe6 Ref2 Rg4 Rf8 N7f6 Kb8 Nf4 Ra8 Qf7
1N1b1R2/K1Q5/b1Pp1pPB/1q3n2/1n2R3/R4rNB/PnR1bPp1/1k3rr1 w - - 0 1 illegal: No proof kernel
1K3R1B/3NR1Bp/2Qbp3/rq1P1p2/rq1N1P2/P2R1r2/2nP4/nb2kbR1 w - - 0 1 illegal: No possible last move
5B2/1k2p3/p1R3b1/KbQ1PnPq/RB1nPn1r/Nq2p1b1/1P1N4/Rr4R1 w - - 0 1 illegal: No proof kernel
1n1Qn1Bk/PN2RK2/5r2/p1R1pbp1/RP1bP2P/N1n3B1/3q4/q3Rbr1 w - - 0 1 illegal: No proof kernel
1rb1B1Nr/3bQ1Kp/R2nb3/P4b1P/knR3Rp/4p1NP/1P4Rq/2r3B1 w - - 0 1 illegal: No proof kernel
6k1/2r3Pp/b2KpR1b/PBPP2QR/1p1rn1Bb/3Nq1b1/N1q2B2/5n1B w - - 0 1 illegal: No possible last move
kb2N2n/PRnp4/q1nR1q2/ppP5/1PN2b2/1n1PBN2/K2N2r1/1Q2n2B w - - 1 2 illegal: No proof kernel
r1qqkqn1/5pp1/1B3pBb/P3PQ2/N1qR3P/3R3K/2b1B1P1/4qrBN w - - 0 1 illegal: No proof kernel
3R2bn/2Np1b1n/BPB5/1b2rkpN/1b3Pqp/nP1R4/2QB2KP/2q4B w - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 f5 Nh3 a5 Qe1 f2 Qd1 f4 Ng1 f3 Ra2 Ra6 Ra3 Rf6 Ra1 Rf4 gxf4 Ba3 Bg2 Bd6 Bf1 Bf8 c4 Kf7 e4 Ke6 b3 g5 c5 h5 c6 a4 b6 h4 e5 d3 Ke3 d2 c7 a3 Bd3 f1B Kf2 a2 Ba6 Nf6 Ne2 Nh7 Bd3 Nc6 Qc2 d1Q Bb5 Ba6 c8B Qc7 Na3 Nd8 Bd2 Bb4 Ng3 Bc4 Bc6 Bab5 Nh5 Re8 Ba6 Nf7 Re1 Re7 Re3 Nh8 Rd3 Kf5 e6 Re8 e7 Bg8 Rc1 Bbc4 Nb5 Bcf7 Ra1 Qc8 Rc1 a1N Nc7 Bd5 Qb2 Nc2 Qa2 Na3 Qc2 Bdf7 Ra1 Qe2+ Kg1 f2+ Kg2 Qd1 Ra2 Rf8 e8B f1B+ Kh1 Be6 Bf7 Re8 Kg1 Bc4 Bfd5 Re5 Bh1 Bb5 Ra1 Bg2+ Kf2 B2d5 Ra2 Bde6 Kg2 Bef7 Bab7 Nb1 Ra8 Na3 Ba6 Qd8 Ne6 Qc7 Rd8 Qc8 Bf3 Qc3 Nc7 Qca1 Ba8 Qac1 Bc6 Qg4+
2N3R1/2b5/2p1qp1r/rBQ2n1k/1nP1PPr1/qPB1q1p1/1R6/BK1qNB2 w - - 0 2 legal: proof: d4 a5 g4 h5 a4 hxg4 d5 b5 axb5 Ba6 d6 exd6 bxa6 d5 Ra4 d4 Ra2 Bc5 Ra1 Bf8 Kd2 g5 e4 d5 h4 a4 f4 a3 c4 f6 Kc2 Kf7 a7 Kg6 b3 g3 Ne2 a2 Nec3 d3+ Kb2 d2 Rg1 d4 Na4 g2 Nb6 d3 Na3 g4 Rb1 Qd7 Nc2 Qe6 Ne1 Kh5 Nc8 Na6 Qc2 d1Q Qf2 Ne7 Qc5+ Nf5 Be3 a1R Bd4 Rb8 a8B d2 Bc6 Nb4 Bb5 c6 Be5 Bd6 Bc3 Kh6 h5 Ra5 Bd4 Bc7 Be5 Kg7 h6+ Kg6 h7 Kh5 Bc3 Rg8 h8B Qf3 Bg7 d1Q Bd4 Qe3 Bf8 Rh8 Bc3 Rh6 Bd6 Rb7 Bde5 Rb8 Nd6 Rg8 Nc8 Rg5 Rc1 Qdd6 Kb1 Qf8 Rd1 g3 Rd8 Qfe7 Rg8 Rg4 Ba1 Qf8 Bec3 Qfd6 Bd3 Qde7 Rf1 g1Q Rf2 Qh1 Bf1 Qhf3 Rg2 Qd1+ Kb2 Rg5 Qd5 Na6 Rc2 Qb4 Qc5 Rg4 Rf2 Qa4 Rg2 Nb4 Re2 Qdd6 Kb1 Qa3 Rb2 Qd1#
1RN2Qq1/5p1n/3p1nk1/P2P1N2/N4P2/KBr2rNP/1n2pqbB/Rrn5 w - - 0 2 legal: proof: d4 c5 g4 cxd4 b3 a5 b4 axb4 e3 h5 gxh5 e6 Bh3 d3 Bg2 Bc5 Bf1 Bd4 exd4 Kf8 Nf3 Ke7 Ng1 Ke8 Kd2 b5 a4 g5 c4 e5 f4 b3 Kc3 g4 Kb2 b4 d5 g3 c5 d2 a5 g2 c6 e4 c7 e3 h6 e2 h7 d6 Nc3 Ke7 Rb1 Kf6 Qc2 Bh3 c8N Nd7 Nf3 g1Q Nd4 Bg2 Nf5 Kg6 Na4 Ndf6 h3 Qf2 Qc5 Rb8 Ng3 Qf8 Qa7 Rb6 Qe7 d1N+ Ka1 b2+ Ka2 b3+ Ka3 Rc6 Be3 Rc3 Qe8 Qg7 Qf8 Rd3 Ra1 b1R Bb6 Rf3 Rg1 Bh1 Bg2 b2+ Be3 Nc3 Rc1 Na2 Rc3 Nc1 Rb3 Ne8 Rb5 Ngf6 Rb8 Qg8 Rb3 Qf1 Bg1 Qf2 Bh2 Ng7 Qe8 Ne6 Qd8 Ng5 Qf8 Re3 Bf3 Bg2 Bg4 Rd3 Bd7 Rf3 Bb5 Qg7 Bc4 Rg8 Qe7 Re8 Qd8 Ree3 Qf8 Qg8 h8N+ Kh7 Qd8 Rc3 Ng6 Kh6 Nge7 Ngh7 Nef5+ Kg6 Ra2 Ra1 Qf8 b1N+ Kb2 Nd2 Ka3 Rb1 Ra1 Rcd3 Rc3 Rde3 Bb3 Rd3 Rc6 Rc3 Rb6 Nc4+ Kb4 Bf1 Rb8 Nb2 Ka3 Bg2
Bn1n2b1/1n1pB1b1/k4N2/p1K2Rq1/P2P2Rq/2p2BBQ/qNPb2P1/7b w - - 2 3 legal: proof: h4 g5 b4 gxh4 e4 h5 e5 a5 b5 Ra6 bxa6 b5 Bb2 f6 Bc3 fxe5 Bb2 e4 Bc3 Bh6 Bxh8 Bf8 Ke2 c5 Ke3 e5 a4 c4 f4 c3 d4 h3 f5 b4 f6 h2 a7 b3 a8B h4 Qd3 h3 Bg7 b2 Ne2 Nh6 Bb7 Nf7 Bh6 Bg7 Na3 b1Q Qb5 Qa2 Ba6 Bb7 Qb3 Bd5 Ng3 Be6 Ke2 e3 Kd3 e2 Bf4 e1B Nh5 Bd2 Bg3 Qe7 Rd1 Kd8 Bb7 Kc7 Be2 Nd8 f7 Qg5 f8B Bg8 Ba8 Kc8 Rhe1 h1N Qe6 h2 Qh3 Kc7 Rc1 Kb6 Nf6 Ka6 Bef3 e4+ Ke2 e3 Kd3 e2 Be7 Qb3 Nc4 Qa2 Rf1 e1Q Nb2 Qee5 Rcd1 Qef4 Rde1 Qfh4 Re4 Nf2+ Ke2 h1B Rg4 Nd1 Kd3 Ne3 Ke4 Nf5 Ke5 Nh6+ Kd6 Nf5+ Kc5 Nd6+ Bfd5 N8f7 Rf5 Nd8 Bf3 N6b7+
2r2nBr/1P1p2p1/P3nQP1/b2BR1P1/q6p/4pN1k/1K1nB1Nr/1BR2b2 w - - 0 1 illegal: No proof kernel
R2r2K1/5nQ1/1Bp1n1pN/2Pk1P1n/Bp1Bp2B/2b1Pq1P/R2b4/1N2r2q w - - 0 1 illegal: No proof kernel
R4B2/Kpp2rP1/1Q4R1/2rPqP2/1B1p1n2/qq3b2/1B1P2pb/Nk1n1N1B w - - 0 1 illegal: No possible last move, all moves rejected
1K2b2Q/Nn1P2rp/2p2nP1/b1R2q2/1Bbp2k1/RR2P2r/Bp5P/1NR3b1 w - - 0 1 legal: proof: d4 a5 c4 g5 b4 d5 bxa5 e6 f4 dxc4 fxg5 e5 d5 Bg7 Qd2 Bf8 Qd4 exd4 Kf2 Kd7 Kf3 b5 Kf4 f5 Ke5 f4 a4 c6 Ra2 c3 g4 b4 a6 b3 a5 b2 a7 c2 e3 f3 a6 f2 d6 Nf6 Ra5 Ne8 Ne2 Qb6 Bd2 c1B Nec3 Rg8 Bc4 f1B Ba2 Nf6 Nb5 Bc4 Ra3 Qa5 Rb3 Rg6 Bc3 Bd2 Rc1 Be1 Bd2 Be7 Bb4 Rh6 g6 Bf2 g7 Rh5+ g5 Bg1 g8Q Rh3 g6 Bd8 Qh8 Ng4+ Ke4 Ke6 Kf4 Nd7 Ke4 Rb8 a8R Rb7 a7 Bc7 Rb8 Bd8 a8R Nc5+ Kf4 Nf6 Ra6 Rb6 Na7 Bd7 Rb7 Qb5 Raa3 Be8 Rd7 Rb7 Rf7 Ng8 Rf5 Rg7 d7 Nb7 Ke4 Qc5 Rd5 Qf8 Rc5 Kf6 Kf4 Ba5 Ke4 Ne7 Kf4 Nd5+ Ke4 Kg5 Ke5 Kg4 Ke6 Nd8+ Ke5 Qf5+ Kd6 Nb6 Kc7 Nb7 Kb8 Nd5 Rcc3 Nf6 Rc2 Be2 Rc1 Bc4
1N5B/1bNn1n1q/4Kp1P/1P2B1B1/4p2R/n2rPpPq/r4Q1p/2R2Bqk w - - 0 1 illegal: No proof kernel
3q2q1/NP6/3B1P1k/ppR5/Pb3Nrn/q2p1Kbp/3PNNBr/QrR5 w - - 0 2 legal: proof: e4 a5 c4 f5 b4 fxe4 b5 b6 h3 Nc6 h4 Ba6 h5 Nb4 h6 Nd5 bxa6 b5 c5 Nb6 cxb6 gxh6 Na3 h5 Nb1 h4 Ke2 Kf7 g4 Kg7 a4 d5 f4 e5 b7 h5 f5 c5 g5 e3 g6 h3 a7 h4 f6+ Kh6 g7 d4 Nf3 c4 Ra2 e4 Ra1 c3 Ra2 c2 Rb2 h2 Bg2 Ne7 Ng1 Nf5 Nh3 Bb4 Nf4 Rc8 a8N Rc4 Rg1 h1R Nc3 Rh2 Nb6 d3+ Kf1 h3 Nce2 Rg8 Nc8 Nh4 Na7 Rc3 Rb1 Rb3 Ba3 c1Q Ke1 Qcc8 Rc1 Rb1 Rc5 Qe6 Nc3 e2 Kf2 e1B+ Ke3 Rc1 Nce2 Bg3 Rh1 Rb1 Qg1 Rb3 Qa1 Rb1 Rhc1 Qed6 Bb2 Qd5 Be5 Qa2 Bd6 Qa3 Kd4 e3 Ke4 Rf8 Nd4 e2 g8N+ Kh7 Nh6 e1Q+ Nde2 Qg1 Ng4 Rg8 Nf2 Kh6 Ke3 Rg4 Ke4 Qd1 Ke3 Qdb3 Ke4 Qbg8 Ke3 Nf5+ Kf3 Nh4+
4rR2/1NqB4/kqq1PppR/5bb1/1b5B/1K1r2pP/NBP2PpB/2Q2n2 w - - 0 1 illegal: Other
r1qRn2B/Bp2pR2/1Pn1pNn1/2r4p/P4b1P/qQ2P1kB/2KN3n/3B4 w - - 0 3 legal: proof: c4 g5 f4 a5 fxg5 Nf6 b4 Ng8 Qb3 Ra7 Qe3 Ra8 Qe6 dxe6 Nf3 Bd7 Ng1 Bb5 cxb5 axb4 Kd1 Kd7 h4 Kd6 a4 Ke5 g4 Kf4 d4+ Kg3 d5 f5 d6 h5 d7 c5 g6 c4 g5 f4 g7 b3 g6 f3 Bh3 f2 Bb2 f1N Nd2 c3 Ngf3 Qa5 d8B Qb4 Ne5 Kf4 Bb6 Qd6 Ng4 Nh2 Rf1+ Kg3 Nf6 Nc6 Ba7 Qa3 b6 c2+ Kc1 Rd8 Rf4 Rd5 Rd4 Rc5 Rd8 Nh6 g8Q Nf7 g7 Nfe5 e3 Ng6 Qh7 Rg8 Rb1 Rh8 g8B Bh6 Qg7 Bf4 Bh7 Re8 Nd5 Rg8 Qc3 Rf8 Nf6 Re8 Nc4 Rf8 Kd2 c1Q+ Kd3 Rg8 Nd2 Rh8 Ba1 b2 Qb3 Rf8 Rd4 Ra8 Rd8 Nf8 B7f5 Ng6 Bfg4 Qc3+ Ke2 Qc2 Rf1 b1N Bd4 Qc4+ Kd1 Nc3+ Kc2 Ne4+ Bc3 Nd6 Bd1 Bg5 Ne8 Bh6 Rf7 Bf4 Nf6 Ne8 Bhg4 Qd4 Bh3 Qd7 Nd5 Ra5 Bh8 Qc8 Nf6 Rc5+
Nrk1K3/1N4p1/3pP2B/6b1/qNPRNppr/1r3PP1/2Q1nnR1/1Bq1r3 w - - 1 2 legal: proof: b4 b5 d4 e5 a4 c5 Qd2 h5 Qg5 Ba6 Qg4 hxg4 bxc5 exd4 Be3 b4 Bc1 Bb5 axb5 Qh4 Kd1 Qf6 Ke1 Qd8 Kd2 a5 Kd3 f5 Kc4 a4 Kd5 b3 h4 b2 c4 d3 e4 d2 f3 d1R+ Nd2 b1Q e5 d6 Ke6 a3 c6 a2 g3 Qe4 b6 Qe1 c7 Qe4 c8N Qc2 h5 Ra6 h6 Ra4 h7 Rb4 b7 Ne7 Nb3 Ng6 Nc5 Qg2 Ne2 Nc6 b8N Qb6 Nb7 Qa6 Nb6 Re1 Na8 Rb3 Bh6 f4 Nc3 Qa4 Rd1 a1R Rh2 Qd2 Na6 Rab1 Bd3 Be7 Nb4 Qc1 Rg2 Bg5 Ne4 R1b2 Bb1 Nd4+ Kd5 Kd7 e6+ Kc8 Rdd2 Ne2 Rd4 Rd8 h8Q Ne5 Qh7 Nd3 Qg6 Nf2 Qf5 Qa1 Kc6 Rh8 Qg6 Kb8 Kd7 Rh7 Ke8 Kc8 Nc3 Qa6 Qc2 Qa4+ Nc6 Rb5 Ne4 R2b3 Nba5 Rb8 Nb7 Bf6 Bg5 Rh4 Bh6 Qa6 Nb4 Bg5 Qa2 Qa5 Qc2 Qa4+
3B2N1/1Pq2B1q/r1kpKn1P/2BNb3/qp1QR3/p4r2/PP2p2R/2b1B2q w - - 0 2 illegal: No proof kernel
3NK3/RB3pQ1/b2n1rpp/P6N/3RP1bP/3nBkpn/q1P1p1r1/B6B w - - 0 1 illegal: Other
N1Kb1kN1/qpBp1P1n/5N2/p4BP1/4np2/1PPrRp2/1qrQb2R/4N3 w - - 0 1 illegal: No proof kernel forced: wxLB
3N1r2/pBp1KP2/p2nB1P1/1R4br/7k/2PpQn1p/1BNq1RP1/1n3rB1 w - - 0 1 illegal: No proof kernel
2kN4/RNpq2PQ/1ppb2bB/N3r3/pnPKpr2/P3B2P/b6q/N5R1 w - - 0 2 illegal: No proof kernel
kn6/2pP2b1/N2Bbq1q/3R3R/1pRP2K1/2nr3p/N1P2Ppp/1QqBR3 w - - 0 1 illegal: No proof kernel
1r3B1k/2NBrbp1/6R1/3RP1p1/np3q2/1Pp1Prpr/5qPR/1KR2N1Q w - - 0 1 illegal: No proof kernel
2B3N1/1b1p4/1Qp1p2n/1rK1nPB1/2P2r1R/2k1Pr2/p1Pp1NR1/N1r3Nn w - - 0 1 illegal: No proof kernel
BQ1n4/Bp5R/1K1RnPp1/4ppN1/p6n/p2rPRPr/2R1Pbq1/3N3k w - - 1 2 illegal: No proof kernel
nQ3R1r/P6p/1np1pBrk/pP1R1pp1/2N1q3/1NKNnBN1/2PP1b2/8 w - - 0 1 illegal: No proof kernel
8/2BpNNK1/3Q1PB1/2Bb2pb/RPrnpp1n/6Rp/1p1P1P2/1Bk2b1r w - - 1 2 illegal: No proof kernel
q1B1nbbq/p1nPP1R1/B1p5/2qr2BN/1R1n1rbB/KQ6/P1PN2k1/r7 w - - 0 1 illegal: No proof kernel
1q2k3/4bbnB/pnnB1PN1/P1rnpP2/4P2B/r1Q2B2/3NrbK1/q1R3R1 w - - 0 1 illegal: No proof kernel
Bk2n3/1p1r1P2/rNPbn3/1PQ1p3/1r2P1R1/1bb1N1r1/3NK1q1/2NRBn1q w - - 0 1 illegal: No proof kernel
Kr3R2/2qQ1bRp/R1p1n2n/2q3b1/2PNn2B/b2k1r1P/BP2qRbP/5N2 w - - 0 1 illegal: No proof kernel
KbR2nQ1/2Pr1B1P/2q1br1p/2p1r1bq/2r1R3/2b1N1NP/2P1R2R/2kn2B1 w - - 0 1 illegal: Other
1BrR3n/P1p1Kb2/BbP1p1N1/1r1n2Q1/1Pr2q2/p3qN2/PBk1B2q/3b1R2 w - - 0 1 illegal: Other
bK6/pBpB1n2/Qp1N3b/1qNP1rB1/P2b2R1/r4n1R/2Prk2P/2qqB3 w - - 0 1 illegal: No proof kernel
k4bnK/1p1R4/BPPBNRbQ/r1q1n2p/bRp1b1P1/7b/r3RN1P/7r w - - 0 1 illegal: No proof kernel
3N4/RppR1K1n/bP2rR2/q1R2p2/1PQrr1P1/3rN1B1/1bn1rP2/1k2bB2 w - - 0 1 illegal: No proof kernel
b3NRRK/p2P1r2/1r1N2B1/k2bp1p1/1nQ5/n1Brq3/PP1NP2N/1r2b1n1 w - - 0 1 illegal: No proof kernel
2q1nR1b/p1P2B1k/Q4Bpn/1N1nN2n/3p4/1brKR1P1/PR2Pq2/4R1nr w - - 0 1 illegal: No proof kernel
q4RN1/2pB4/n1Pk3b/bb1rqR1n/6PQ/1p1Rp1NB/1P1rPnK1/1nR5 w - - 2 3 illegal: No proof kernel
5BB1/1n1Pr1p1/2p3B1/2P1N1PN/1r2Q1Kq/2pPRrbB/b1k3n1/2n1R1nq w - - 0 1 illegal: No possible last move
Q7/3p3R/BnPpRRnb/3P1r1r/Rp2K1Nk/Nq1nBbbP/1P1b4/1q6 w - - 0 1 illegal: No proof kernel
kBB2K2/2bp1Q2/pqN2qp1/P1rP3B/1B4r1/5b1R/b1bP2NP/3Rnn1r w - - 0 1 illegal: No proof kernel
K1Rn2n1/N1ppn2B/P2p1qN1/bQ1P3N/q1Pr1Pb1/1R6/2q1rB2/N4n1k w - - 0 1 illegal: No proof kernel
B1Kb2q1/P5N1/p3nbR1/1r3n1p/1b3Q2/1Bpqn1BN/P1P3P1/2k1BbRr w - - 0 1 illegal: No proof kernel
bB1R2Q1/n3B2P/qNbrr2p/2pB2p1/2nR3K/bPk4P/2Bq1NP1/2r3b1 w - - 0 1 illegal: Other
b2qN1Qr/Rn4p1/P3BpKR/b2np3/4Pq2/1kB4r/2NrPbP1/R1R2b2 w - - 0 1 illegal: No proof kernel forced: bxLB
3K4/2Bb1r1N/p1Np1BQ1/1qP3R1/PP1n1brR/n4pn1/BkbP2B1/2q1n3 w - - 0 1 illegal: No proof kernel
1N2BrR1/3r2bp/1R1qP1Q1/6N1/1b3B2/2b2KpP/b1BPpnPk/1n2bB1b w - - 0 1 illegal: No proof kernel
K2nB3/N1P1pN1B/2n3nb/B3q2R/kp3r2/4n2Q/PP1bPp2/1rbbBR2 w - - 0 1 illegal: No proof kernel
3Q4/1r1B2q1/k2pnP2/1NpP1n2/2PNp2B/qp2NPnN/1r1RR3/K2b1qb1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b3 a5 b4 axb4 d4 b5 Kd2 e5 a4 h5 c4 e4 Kc2 b3+ Kb2 h3 g4 h4 d5 b4 a5 h2 g5 h3 f6 Nc6 g6 Bc5 g7 d6 a6 Kd7 a7 Qf8 Bg5 Rh7 Bd3 Nh6 g8N Nf5 Na3 Qg7 Nh6 Nd8 Nb5 Ne6 Qe1 Rb8 a8N c6 Kb1 b2 Ng4 Bd4 Ne3 c5 Ka2 Rb7 Bf1 b3+ Ka3 b1Q Qa5 Qe1 Ra2 Rh4 Qb6 Rg4 Rc2 Rg2 Nac7 Kd8 Be2 Bd7 Bf3 Kc8 Rd2 Be8 Bh4 Bh5 Be2 Bg4 Bf1 Bd1 Be2 Kb8 Bg4 Qf1 f3 Rf2 Rd3 Rb2 Rd2 Kc8 Ne2 Kb8 Nf4 Qe1 Rf1 h1N Rff2 h2 Nh3 Nhg3 Rfe2 h1Q Qa5 Qhf1 Qb6 Be5 Nd4 Bf4 Ncb5 Ka8 Ng2 Be3 Qc7 Bg1 Ne3 Rb6 Qd8+ Kb7 Bh5 Ka6 Be8 Rb7 Bd7 Rb1 Ra2 Qc3 Red2 Rb2 Re2 Rd2 Rc2 Qb4+ Kb2 Rc7 Ka1 Rb7 Rc1 Rb2 Rcc2 Qh7 Red2 Qe7 Re2 Qg7 Rcd2 Qa3+
1q1bqBb1/pN3b2/2P1p1n1/Pr1nP3/3R1RRp/P5N1/1QRp1Krk/1r3B2 w - - 0 1 illegal: No proof kernel
1N2Nk2/1nB1R3/p1rpR1bq/3P4/1pnB4/RQbr3P/PPpb4/K2R2qq w - - 1 3 illegal: No proof kernel
4bN2/p2p2PB/1pQbRn1r/1K6/1q1P2B1/qk3pBB/1Pn1rP2/1NqR3r w - - 2 3 illegal: No proof kernel
nR1nn3/2bpPkp1/1b2p3/rR1BK2p/3NPn1Q/N2Pr1qP/4B1b1/3B3B w - - 0 3 illegal: No proof kernel
q1R1R1B1/rprb1R1P/3p1p2/k1b4P/1pKB4/bPNn2QN/3P2nR/b5n1 w - - 0 1 illegal: No proof kernel
b2R3B/1NK4p/7n/pQqN1bB1/2pb1p2/PNP2rb1/kPqR1PN1/2r2n2 w - - 0 3 legal: proof: h4 g5 e4 gxh4 a3 d5 exd5 b5 Bc4 b4 Ba2 b3 Qf3 bxa2 Qh5 Be6 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kc4 g4 a5 d4 f5 d6 c5 d5 h3 g5 h2 g6 Qb6 d7 Na6 d8N Nb4 g7 Nh6 d6 Nd5 g8N Ne3 d7 Nf1 Kf4 e5+ Kg5 e4 Kf4 e3 Ke5 e2 Nb7 e1B d8B Bd2 Ne2 Bg7+ Nf6 Rf8 Nf4 Ra6 Rg1 h1B Ng2 Be3 Qh5 Bd4+ Kf4 Qb4 Nd5 Rc6 Bf6 Rf7 Qg5 Bf8 Bh8 Bd6+ Kf3 Bg3 Nd2+ Kb5 Qh5 Ka4 Nb3 Rf8 Rb1 a1Q Bg5 Rff6 Rd1 Qb1 Qe8 Bd6 Ne7 Qa1 Nd2 Be3 Nd8 Ng3 Rge1 Bdf4 Re2 Nf1 Qd7 Qc1 c3 c4 Qb7 Bg3 Qb6 Qc5 Qa6 f4 Ke4 Rcd6 Qb7 Rd3 Qd5 Qa7 Ke5 Bf5 Ne1 Qc2 Qd7+ Bc6 Ng2 Rfd6 Qb7 Bd5 Qa6 Ba8 Nb7 Rd8 Qb6 R8d4 Qc5 Qb6 Qd5 Qa7 Kd6 Re4 Kc7 Re5 Nb1 Kb3 Qb5+ Ka2 Nd2 Bc5 Nb3 Rf3 Rd6 Bd4 Rd2 Re1 Rd8 Rc1 Nd5 Qc5+
1B4Nk/R2PK3/2qr1n1p/1prR1b1n/p4R1B/PPp1b1QP/p5b1/1R2Nr2 w - - 1 3 illegal: Other
2nR2B1/N3k1pn/K4p2/1Pq3R1/2b1PQ2/pB2q1P1/r1rppPBb/B2bN3 w - - 0 1 illegal: No proof kernel
6R1/QR2p1pB/1B2bp2/1k2BB2/bp1P4/4PNP1/1bqP1rpn/1NbKn2r w - - 0 1 illegal: Other
BB1Nb2k/p1pp4/2q3r1/pN2p3/Pr1P4/QpP2R2/1PRr1R1b/K1R1nn2 w - - 0 6 illegal: Other
7n/1nKr2b1/2pB1k1b/RRNb4/NpBpRpq1/1qPP3Q/1Pr2P2/2qR3n w - - 0 1 illegal: No proof kernel
2R3b1/Q1B5/P4qkP/B4qr1/1P2P3/r1r1QRr1/b1n3QB/2NKq2q w - - 0 1 illegal: No possible last move, all moves rejected
2n2Bnk/PP1p2N1/2rB2B1/1p3n1r/Q1P5/1R1Q1K1n/4P1Rn/b1r3Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Nf6 d4 cxd4 a5 Qb6 axb6 Ng8 c3 Bb7 b3 Bc6 Bf4 b4 Bc1 a6 Na3 Ba4 bxa4 b3 Nb5 axb5 Qd3 b2 Qc2 Bb4 Qd1 Bf8 Kf2 b1N h4 g5 h6 f5 e6 f4 c4 d3 h7 g4 a5 f3 e7 Kf7 e8Q+ Kg7 b7 d2 a6 Nc3 a7 Ba3 h5 Nf6 Qe3 Be7 h6+ Kg6 Rh3 Na4 Bg2 Nb6 Qa4 d1R Ba3 Nc8 Bd6 Ng8 Qd3+ Kf7 Rh2 Rc1 Rb1 Bf6 Rb3 Nc6 Nh3 N6e7 Nf4 Ba1 Nh5 g3+ Ke3 f2 Ng7 f1N+ Kf3 Nf5 Bh1 Nb6 Rg2 Rc8 Bf8 Rc6 Bd6 Nf6 Bf8 Nc8 Bd6 Re8 h8Q Re5 h7 Rec5 Qd8 Ng8 h8B Kg6 Qe7 Kh7 Qee3 Rd5 Qg1 Rdc5 Ne8 Rd5 Bg7 Nh2+ Kf4 Re5 Bgf8 Kh8 Ng7 Rd5 Rf2 Rdc5 Bf3 g2 Bh5 Re5 Bg6 Rd5 Qh1 g1N Rg2 Rdc5 Ke4 Nh3 Qg1 Nd4 Ke3 Rd5 Ke4 Rh5 Ke3 Nf5+ Ke4 Ng4 Kf3 Nh2+
Kn1k2nQ/R1pP4/r7/1p1r1Pr1/BN1NP1Q1/1n3q1p/1b2N2P/3R3R w - - 0 1 legal: proof: g4 e5 c4 f5 a4 fxg4 d3 d5 cxd5 b5 axb5 e4 dxe4 Qh4 b6 Qd8 b4 Ke7 b5 Be6 b7 Kf7 b6 Na6 b8N Bc8 Be3 Ke8 b7 Bd7 Bd4 Bb5 Bb6 Bd3 exd3 axb6 Kd2 g5 Kc3 h5 Kc4 h4 Kb5 g3 Kc6 g2 f4 h3 d4 g4 d6 g3 f5 Rh5 d7+ Ke7 d5 Nf6 Nd2 Rg5 Qg4 Bg7 Ne2 g1R Nb3 g2 Nbd4 Ng8 Ra4 Qf8 d8R Qf7 Ra5 Qh5 Rd7+ Ke8 d6 b5 Ra3 Nc5 Na6 Nb3 Nb4 Rd8 b8Q Rg6 Ndc2 Bb2 Kb7 Rh6 Ka8 Rf6 Qg7 Qf3 Ra7 Rh6 Ncd4 Rg6 Nf4 Rg5 Bd3 Ra1 Bc4 g1N Nfe2 Ra6 Bd3 Ra5 Bc2 Ra6 Ng3 Ne2 Bd1 Nc5 Ba4 Nc1 Nge2 N1b3 Qc8 Rh5 Qg4 Rg5 Rf7 Nd7 Rf6 Nb8 d7+ Ke7 Rd6 Re8 Qb7 Kd8 Qd5 Nc6 Qe5 Nb8 Qh8 Re6 Ndc2 Rh6 Rdd1 Rhd6 Ncd4 Rd5
2kn3B/2p3Pq/2bn2N1/1R3Pq1/P2BR2q/1p5Q/P1QpQ3/K2rnB2 w - - 0 1 illegal: No possible last move
2n1R3/2Q1Q1qn/3pKPpN/bp2P3/1N1Bq3/p5PR/Q1b2RP1/2r1k3 w - - 0 1 legal: proof: d4 b5 b4 h5 a4 e5 e3 exd4 a5 c5 Kd2 Qc7 Ke1 Qg3 hxg3 Kd8 Qf3 f5 Bd3 c4 Qf4 Rh6 Qxf5 cxd3 Qf7 Rb6 axb6 a5 Qd5 a4 Qf7 Ra5 bxa5 Bc5 Qb3 Ba3 Qf7 Bf8 Kd2 h4 f4 h3 c4 g6 c5 d6 b7 h2 f5 Bg7 e4 Ne7 f6 Kd7 a6 Kc6 a7 Bg4 a8Q Nc8 e5 Nd7 Nf3 Nf8 Nc3 Bf5 Na2 Bh6+ Ng5 Nh7 Qe7 Kd5 b8Q+ Kc4 c6 a3 c7 Kb3 Nb4 Kc4 Rf1 h1Q Bb2 Qh4 Qa4 Qe4 Rf2 Qb7 Rh1 Qa7 Kd1 d2 Ke2 d1R Kf3 d3 Nf7 d2 Bd4 Bc2 Rh3 Rc1 Qb7 Be3 Nh6 Bf4 Qa5 Bg5 Qe4 d1Q+ Qe2+ Kb3 Qb6 Qe1 Qc6 Bd2 Qb7 Bd1 Ke4 Bc2+ Kd5 Bc3 Qd2 Qe4+ Ke6 Kc4 Nc6 Ba5 Nb4 Nb6 c8R+ Kb3 Ra8 Nc8 Qbc7 Qab7 Bc5 Kc4 Qd5+ Kc3 Qa2 Qa7 Rf4 Kd2 Rf2+ Ke1 Bd4 Qab7 Rb8 Qbc6 Ra8 Qe8 Rb8 Qf8 Ra8 Qg7 Rb8 Na7 Re8 Nc8
8/p1pqp1P1/1qR1ppQ1/pRb2r2/2QKPPR1/2B3N1/1P1n2B1/k4B2 w - - 0 1 illegal: No possible last move, all moves rejected
r2Q1Q2/4q3/n7/BB1Kn1Q1/rb1PPb1q/1RP1B3/2P1q2b/k1N1N1rn w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 exf4 a4 b5 Nf3 c5 Nc3 d4 Ng1 c4 Ra3 b4 Nb1 Bd7 Re3 c3 bxc3 Bb5 axb5 dxe3 Ke2 Kd7 Kd3 g5 Kc4 f5 d4 a5 h4 f3 b6 Kc6 h6 f2 b7 a4 h5 a3 h7 g4 h6 a2 Nd2 a1Q Qe1 b3 Be2 f1Q Ndf3 f4 Qd1 g3 Nh2 f3 Ba3 g2 Bc5 b2 Nh3 g1B Qd2 b1R Qd3 f2 Qd2 Qe7 Bd3 e2 Qc1 e1B Bb6 Qe2 Ng4 f1N Ba5 Bg3 Ngf2 Na6 b8B Bf4 Ng5 Ng3 Nf3 Bh2 Ne1 Nf6 Bbc7 Rg8 h8Q Nd7 h7 Rg6 Rf1 Nh1 Bd8 Qh4 Bg5 Bb4 Qf8 Qa3 h8Q Ra1 Qd8 Rg7 Qhf8 Rg8 Bh6 Rg1 Qe3 Qc1 Qg3 Ra4 Qg2 Qa3 Qgg5 Kb7 Kd5 Ne5 Bc4 Ka7 Nfd3 Kb7 Ke6 Kc6 Nc1 Be7 Bb3 Kb5 Kd5 Qc5+ Ke6 Qa7 Kd5 Bb4 Ba2 Qe7 Bb3 Ra3 Bc4+ Ka4 Bd3 Ra1 Bc4 Ka3 Bb5 Be3 Rf6 Kb2 Rb6 Ra4 Qgg7 Qf1 Bc6 Ka1 Rb8 Bc5 Rb3 Qg2 Bb5 Bb4 Bf4 Qe2 Qg5 Bf2 Bd2 Bfg3 Be3 Bf4
kq3r2/1q1B1Nn1/7K/2Pb1N1P/r1Q1qP1P/Q6q/1B1NQ2q/nb1r1R2 w - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 h4 cxd4 a4 f6 axb5 e6 b4 Bd6 e3 Bf4 exf4 Ba6 f5 Bb7 Ra3 Ba6 Rg3 Bc8 Rg5 fxg5 Ke2 a5 Kf3 d5 Kg4 Kd7 c4 Kc7 f4 Kb7 f6 d3 c5 a4 f7 e5+ Kf3 a3 f8Q e4+ Kg3 d2 b6 d4 b5 a2 Qg4 a1Q Rh2 d1R Bd3 e3 Rh1 e2 Qh3 e1Q+ Kf3 g4+ Kg2 g5 Nc3 g3 Kf3 g2 Qf6 Qe4+ Kg3 g4 Qe6 Qb2 Nce2 Nh6 Qd5+ Nc6 Qg8 Na5 Qc4 Nb3 Nf3 Ra4 Nd2 Rf8 Rf1 g1Q+ Qg2 Qb1 Bb2 Qh1 Qh3 Kb8 b7 Be6 Bc2 d3 Nd4 Qc7 Nf5 Bd5 Qh2 Qg7 Qe2 Na1 Bb3 Ka7 b8N Qb7 b6+ Ka8 Nc6 Qb8 Ne5 Qh3+ Kf2 Qb7 Nf7 Qb8 Ng3 Nf5 b7+ Ka7 Bc2 Ng7 Nf5 g3+ Kg1 g2 Kf2 Qh1 Kg3 Qh2+ Kg4 Qh3+ Kg5 g1Q+ Kh6 Qgh2 Nf3 d2 Bb3 Ra2 Ba4 Ra3 Bd7 Ra4 Rg1 Rf1 Rh1 d1B Nd2 Bc2 Rg1 Rd1 Rf1 Qbe5 Bc3 Qb5 Bb2 Bb1 b8Q+ Ka6 Qe8 Kb7 Qed3 Qb8 Qa3 Ka8 Qe6 Q5b7 Qe7 Qed3 Qe2 Qe4
4N1Qn/2B1n1n1/7k/Pr5q/QPq4R/3R1BqP/1r2bqQP/r1b1K2B w - - 0 1 illegal: No possible last move, all moves rejected
3nr3/1b1QNNQ1/2BrrRr1/n1nPN1PP/Q5b1/K2B2kP/1b3b2/6q1 w - - 0 1 illegal: No proof kernel
4Q2r/K1b2b1B/3n1b1Q/qPn5/R3PR1B/pb2nP2/k3P1R1/3rQ1Nb w - - 0 1 legal: proof: c4 b5 h4 g5 a4 e5 axb5 d5 cxd5 e4 g4 Bb7 d3 Bc8 dxe4 f6 Nd2 gxh4 Ndf3 f5 g5 Kd7 Ne5+ Ke8 Ng4 fxg4 Kd2 Kd7 Kd3 Kd6 Kc4 c5 b4 h5 g6 a5 g7 a4 b6 h3 Kb5 c4 b7 h4 Bg2 h2 Bb2 h3 Bf6 a3 Bb2 c3 Qb1 c2 Qe1 c1N Bf3 g3 Qc3 g2 Qf6+ Be6 Bc3 Ne7 g8R Nc8 Qg5 Na6 b8Q+ Nc7+ Kc4 Nb3 b5 Bg7 Bf6 Nc5 Qh6 Ra7 Bg5 Bf6 Rd1 Ke5 Bg4 Nd6+ Kb4 Rb7 Rc1 Kd4 Ka5 Rb6 Rf1 Kc4 Bh4 Kb3 Bf5 Ka2 Bh7 Rb7 Re8 Ra7+ Kb6 Ra8 Nf3 g1B Rg8 Ra4 Rg2 Rd4 Ka7 Rd1 Qb6 Bg8 Qa5 Bf7 Qe1 Bg8 Ng5 Bf7 f3 Be3 Rhg1 h1B Rg4 h2 R1g2 Bed4 Nh3 Bde5 Ng1 Qa8+ Kb6 Qa4 Rf4 Qb4 Ka7 Qc3 Rg7 Bg2 Rf2 Bh3 Rfg2 h1B Rg8 Bhe6 Ra8 Nc4 d6 Ne3 d7 Ne8 d8Q Bc7 Qb8 Nd6 Qe8 Bb3 Rd8 Ndc4 Rd4 Nd6 Ra4 Qa5+
1BbK3R/q1R1rq2/1Q1bQq2/1RP1N1QP/PP6/k1p1r3/2b1n3/2b2Nn1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 b5 g4 a4 Bd3 c6 Bc2 c5 Bb3 axb3 gxh5 bxc4 d4 Qb6 dxc5 Qd8 Kd2 g5 Ke3 d5 Kd4 Kd7 Ke5 Kc6 f4 Kb5 h4 Ka4 f6 c3 a3 d4 f7 d3 f5 d2 f6 g4 h6 g3 h5 g2 h7 Nc6+ Ke4 e5 Qe1 d1B Qg3 b2 Qe3 Nh6 Qg3 Ra7 Nf3 g1B Qg5 Nf5 Bf4 Be3 Re1 Bd6 Kd5 e4 f8Q Ncd4 f7 Nh4 Qfg8 Re7 f8Q Ne2 Kc6 Bc1 Qff6 e3 Ne5 Nf3 Qge6 Nfg1 Nd2 b1Q Nf1 Rhe8 h8R Qa2 Bh2 Bc2 Rd1 Bc7 Rd7 Bd6 Rb7 Qc4 Rb5 Kb3 a4 Qa5 Rb1+ Ka3 Qfh6 Qa7 Rb2 Bg6 Rd2 Bc2 Rd4 Qb3 Rf4 Qc4 Rf7 Qf4 Rfh7 Qf6 Bf4 Ng3 Rf7 e2 Qhg6 e1Q Rg7 Rb7 Rc7 N3e2 Qh3 Ng3 Nd7 Qf7 Qhg4 Rb8 Rcb7 Bf8 Kc7 N3e2 Qb6 Re3 Qge6 Qf2 Kd8 Qf3 Bc7 Bd6 Ne5 Q3f6+ Qe7 Qa8 Ra7 Rb7 Bb8 Qf2 Qef6 Re7 Qe6 Q2f6 Rc7 Qa7
5Nn1/BQb1Q2b/K1Pn1N1R/1NbRPn2/1r4p1/P2n1k2/1P1q2r1/qQ6 w - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 h5 gxh5 a5 c4 Qf6 d4 Qd8 Bh3 a4 Qxa4 b6 Be6 cxd4 c5 b5 Bc4 bxc4 Qa6 Ne7 Qa7 Ng8 Kd2 Ke7 e4 Ke6 h4 d5 h6 g5 h5 f5 h7 f4 c6 c3+ Kd3 g4 h6 c2 a3 f3 Rh5 f2 Bf4 f1N Nc3 c1B Nf3 Na6 Nh2 Nc7 Be3 Ng3 Rg5 Nf5 Nf3 Ne8 Nh4 Rb8 Nb5 Bc5 Ng6 Ned6 Qb7 Qd7 Bf2 Bf4 Rh1 Bh2 Kd2 d3 Kc3 d2 Nf8+ Ke7 e6 Kf6 e7 Ke5 e8N Kf4 Be3+ Kf3 Nf6 d1N+ Kb3 d4 Ka4 d3 Ka5 d2 Ka6 Nf2 Bd4 Ne3 Rd5 Nef5 Be3 d1Q e5 Bg1 Rh4 Qa1 Rh1 Bb6 Rh5 Bc7 Ba7 Nd3 Rh1 Bc5 Rh4 Nge7 Rh1 Rg8 h8Q Rg5 h7 Rh5 Qg7 Ng8 h8Q Rh2 Qhh7 Rg2 Rh6 Qd8 Ne4 Qg5 Nf6 Qd2 Qe7 Bd7 Qhf7 Be8 Qh5 Bg6 Qh1 Bh7 Qb1 Bg1 Nc3 Qe2 Qa8 Rb4 Nb5 Qd2 Qb7 Bc5
2b4Q/R1K1R1n1/1P2rB2/Pn2Bqr1/Bb4k1/3r3p/1PQ1N2P/1nrRq3 w - - 0 1 legal: proof: d4 a5 g4 f5 c4 fxg4 Bd2 e5 dxe5 b5 cxb5 a4 Bb4 a3 Nxa3 Ra6 Nc4 Ra3 Nb6 Ra4 Na8 Rxa8 Kd2 Kf7 Ke3 Kg6 Kd4 Kf5 Kd5 h5 f4 g5 a4 c5 e6 g3 a5 h4 b6 h3 e3 g4 e7 c4 Kd6 c3 Ra2 c2 Bc5 c1R Bd4 g2 Qe1 g3 e4+ Kg4 f5 Nf6 e5 Rh6 e6 Nc6 Ra3 Nh5 f6 Na7 f7 Ng7 Ne2 g1R Be5 g2 Qd2 Rb8 Rf3 Nb5+ Kd5 d6 e8R Qf6 e7 Qf5 Qc2 Re6 Kc6 Ra8 Re3 Ra7 Rd8 Rd7 e8Q Be7 Qh8 d5+ Bd6 d4 f8B d3 Re8 Bf6 Be7 Bc3 Bf6 d2 Re7 d1N Re5 Rd8 Ra7 Bb4 Re3 Ndc3 Re5 Ree8 Ree7 Nb1 Bde5 Rd3 Red7 Nd4+ Kc7 Re6 Re7 Re3 Nf4 Ra3 Bb5 Rd3 Ba4 Nb5+ Kb8 Rge1 Rf1 g1Q Ne2 Red1 Re1 Rd5 Rf1 R1d3 Rd1 Qe1 Bc3 Qe4 Bcd4 Rg5 Bde5 Nd4 Kc7 Qd5 Bf4 Qf5 B4e5 Nb5+
B1B2R2/1bQ1PKn1/1n6/4Bb2/5P1p/1nN2P1b/NbP1Nkrr/4qq1Q w - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 g5 hxg5 e5 a3 f5 g3 f4 Ra2 b6 a4 b5 axb5 e4 gxf4 Qe7 Ra3 Qd8 Rd3 exd3 Kd2 Kf7 e4 Kg6 e5 Kf5 b6 Ke4 g6 a5 b7 d5 b5 h5 g7 a4 e6 a3 b6 a2 e7 a1N Qg4 Bf5 Na3 Nh6 g8B Nd7 b8Q Nb3+ Ke1 d2+ Ke2 Bg7 b7 Qa5 Qc7 Nb6 Be6 Rag8 b8N Be5 Qh3 Rg2 Nb5 Qa1 Na6 d1B+ Ke1 d3 Ne2 Bb2 Bc8 d4 Nb4 Qb1 Qh2 Kf3 Na2 Bh3 Nbc3 Nf5 Rg1 Ng7 Qh1 h4 Na4 Rd8 Bd2 Bf5 Ba5 Rd6 N4c3 Rg6 Bb4 Rg3 Ba3 Rh3 Bd6 Rh2 Be5 Kg4 Nec1 Bf3 Be2 Kh3 Kd1 B3g4 Bf3 d2 Ke2 d3+ Ke3 d1Q N1e2 d2 Ba8 Qf1 f3 Qbe1 Bf6 d1B Be5 Bd7 Ke4 Bge6 Bd6 Bf5+ Ke5 Bc6 Kf6 Bb7 Nec1 Kg3 Ne2+ Kf2 Be5 Bh3 Kf7 Rg5 Nec1 Be2 Rg3 Bd3 N1e2 Rg6 Rg5 Bdf5 Rh5 Qd1 Rh8 Rgg2 Rf8 Qde1
Bn1n1R2/2Pk1n2/rQ1P3q/1N2PRn1/4Bp2/4B3/1QPb1b1r/q1bKR3 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 e5 hxg5 Ba6 bxc5 b4 e4 Bb5 axb5 exf4 e5 d6 Nc3 d5 Ne4 dxe4 d4 h5 g4 f5 c6 a5 b6 b3 b7 h4 d5 a4 d6 a3 c7 f3 g6 a2 g5 e3 g7 h3 g6 f2+ Ke2 h2 Nh3 b2 Ng1 b1N Bh3 f1N Nf3 Nc3+ Ke1 e2 Qd3 Kd7 Qe4 Nb5 Nd4 Nd2 Nc6 Nh6 g8Q Nd4 g7 Ra6 Rf1 h1Q Qe3 Nf7 Bg2 Ne4 Na7 Qg5 Nb5 Ne6 Qb6 Ned8 Be3 Qgh6 Rc1 Neg5 Be4 a1B Kd2 e1B+ Kd1 Nbc6 b8R Bac3 Rb1 Rh7 Qh8 Ba5 g8B Bf2 Rc8 Nb8 Ba8 Rg7 Bh7 Bd2 Bg6 Rh7 Qg8 Nh8 Qa2 Nhf7 Qb2 Be7 Ra1 Bc1 Rg1 f4 Bge4 Be1 Rg4 Bed2+ Rg1 Nge6 Rb1 Bh4 Ra1 Bhe1 Rg5 Rh8 Rf5 Neg5 Rb1 Bf2+ Ke2 Nb7 Rf8 Nbd8 Ra1 Qg6 Rb1 Rh2 Ra1 Qh6 Rb1 Qg2 Kd1 Qg1+ Ke2 Qh1 Qb4 Ba3 Q4d4 Qc1 Ra1 Qb2 Re1 Qa2 Kd1 Bac1 Qb2 Qa1
3RQrB1/2p5/4QPb1/q1n1P1Q1/N1N1n2P/4qr1N/1BK3qP/q2nbk2 w - - 0 1 legal: proof: c4 h5 a4 d5 cxd5 b5 axb5 h4 g3 Rh7 gxh4 Rh8 b4 e5 e4 f6 d4 exd4 e5 f5 Ra2 Bc5 Re2 Bf8 Re4 fxe4 Kd2 Kf7 f4 Kg6 d6 Kf5 d7 a5 b6 g5 b5 d3 b7 a4 b6 g4 Be2 e3+ Kc3 Ke4 f5 d2 Bb5 e2 Kc2 Ke3 Bc4 Kf2 Bd3 e1Q Ba3 g3 Be2 g2 Bb2 a3 Bc4 a2 Be6 a1Q Nc3 Nf6 Na4 Ne4 Bg8 Qg5 d8Q Bb4 Qg4 Na6 b8Q d1N b7 Qge3 Qdg5 Kf1 f6 Bf5 Qe8 Nac5 b8N Bg6 Nh3+ g1Q Nc6 Rd8 Qge6 Rd3 Na5 Bc3 Bh7 Rf8 Nc4 Ba5 Bg8 Qb4 Q6e7 Qb6 Q7d7 Be1 Qde6 Qa5 Q8c6 Ke2 Qce8 Qgg3 Rg1 Rb3 Rg2+ Kf1 Re2 Qg2 Rd2 Qf4 Qd6 Rf3 Qde6 Qgg4 Rd5 Qe3 Rd8 Qg2+
Rq6/1P2b1pB/4n1K1/R2r1bQ1/1Q3B2/1N3Q1P/2qP1bPb/nkq2r1R w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 a5 b4 c5 e3 f3 b6 a4 d6 a3 b5 f2 d7 a2 h3 c4 b7 c3 b6 c2 Ne2 Na6 b8Q Bc5 b7 Nb4 Qg3 Nh6 Qc7 Nf5 Ng1 Rf8 Qg8 Nd4 Qg3 Ne6 Qg4 Ra5 Ba3 c1B Qh7 Nc2 Bd3 f1Q Rh2 Qd1 Qhh5 Bd6 Rh1 Bh2 Ne2 Rd5 Bd6 Ba3 Bg3 Be7 Na3 Qc7 d8Q Qb8 Bf4 Qc1 Rb1 a1B Nc4 Bd4 Ng3 Na1 Na5 Qc2 Nf5 Bd7 Rbg1 Bb5 Nb3 Bg3 Bh6 Qb2 Na5 Bh2 Nd6 Nb3 Qb6 Bd8 Rb1 Na1 Nac4 Nc7 Na5 Qb3 Qgh4+ Ke6 Qg3 f5+ Kf4 Rf6 Kg5 f4+ Bf5+ Ke5 e4 Bc5 Bh7 Rf8+ Kg6+ Kd4 Rb2 f3 Ra2 Kd3 Qhe5 Qb2 Nb3 Kc2 Qe7 Rf4 Nf5 f2 Qbd6 Rf3 Bf4 f1Q Qeg5 Kb1 Ra6 Rf2 Qf3 Bd3 Ra3 Qfc1 e5 Rd4 e6 Rf1 Ra7 Rd5 Ra5 Bf2 Qde7 Qbc2 Qb4 Qc8 e7 Ne6 e8R Be7 Rd8 Q8c7 Rda8 Qc8 Rb5 Qb8 Rba5 Bxf5+
1B6/8/bn1R1BRK/Pn1nb1Nb/p2kPP2/Qq2b3/5QPr/2b1QBq1 w - - 0 1 illegal: No proof kernel
qb3rQr/4kP2/1qR2b1R/1B1Pb1Qb/6qN/4Q2K/1pPn1r1P/1B2B3 w - - 0 1 legal: proof: e4 d5 g4 c5 d4 a5 b4 f5 Nd2 h5 gxh5 axb4 dxc5 d4 Bg2 Nd7 Bh3 Nb6 Bf1 Nd5 exd5 Ra6 Ne4 fxe4 Be2 Ra7 Bf1 Ra8 f4 b5 Kf2 e5 Kg2 g5 a4 d3 c6 g4 h6 g3 f5 e3 f6 b3 a5 b2 a6 b1Q c7 e4 f7+ Ke7 h7 e2 a7 e1R Ra4 e3 Be2 d2 Ra2 b4 Ba3 Bg4 c8Q Nf6 Qf5 Bg7 Qg5 Bh5 Qc1 d1Q Kh3 g2 Bc4 e2 Nf3 g1B Nh4 Bd4 Qce3+ Be5 Rg1 Rf1 Rg3 Rb8 a8B e1B Bc6 Rf2 B6b5 Rf8 Bc1 b3 h8Q b2 Ra5 Qa1 Bd2 Qb6 Qg8 Rbe8 Ba2 Rc8 Qf5 Ne4 Ra6 Bgf6 Rg6 Rcd8 Ba5 Nd2 Qfg5 Rc8 Rh6 Ra8 Q8g6 Rh8 Qg8 Rf8 Bb1 Qa4 Be2 Qe8 Bf1 Qa8 Bb5 Nf3 Qc1 Bb4 Be8 Bbd6 Bb4 Qa5 Be1 Bb8 Qce3 Nd2 Bb5 Qc7 Rd6 Qb6 Rc6 Qg4+
4Q2b/3r2k1/1bp5/1B3K1r/1Q1r1P1R/rqP1NP1P/rB2R3/n1Bbr2R w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 f5 g4 h5 Nd2 hxg4 dxe5 Qg5 Ne4 Nc6 f3 Nd4 f4 Nf3+ exf3 fxe4 Qd5 Qe7 Qd1 Qd8 Ke2 Kf7 Ke3 g5 b4 d5 b6 a5 e6+ Kg7 c3 g3 h3 c6 b5 g4 e7 d4+ Ke2 e3 Kd3 g2 Ke4 a4 e8Q a3 b7 a2 b8B d3 b6 e2 b7 e1R+ Ne2 g1R Bd6 g3 b8R d2 Rbb1 g2 Qa4 d1R Bca3 Rh5 Qb5 Ba6 Rb3 Nh6 Bac5 Ng4 Bf2 Qb8 Rb2 Ne3 Bb4 Rd7 Ng3 Nc2+ Be3 Bd6 Bd3 Be5 Nf1 Qb6 Rd1 a1R Ba3 Ra2 Qb4 Na1 Re2 Bb5 Bd2 Ba4 Ne3 Bf6 Rb1 Bd1 Bb2 R8a3 Bb5 Rgf1 Rc1 g1B Rc2 Rf2 Bdc1 Rg2 Rcd2 Rgg5 Rd6 Rd5 Ba6 Be5 Rh6 Qb5 Rh8 Qa4 Bb5 Qb3 Nc4 Bb6 Ne3 Rg5 Rh4 Rh5 Qef8+ Kg6 Qfe7 Bh8 Qe8+ Kg7 Qc8 Rh6 Qe8 Rd4+ Kf5 Rh5+
1bq1NnqB/3q1Q2/1Rb3Q1/B5b1/pP3qrk/K2PP1b1/P2RQ3/2r1R3 w - - 0 1 legal: proof: g4 b5 c4 e5 cxb5 d5 Bh3 e4 Nc3 d4 Nd5 e3 Nf6+ gxf6 g5 h5 Bg4 hxg4 Kf1 f5 Kg2 d3 exd3 e2 d4 Nc6 d5 Na5 Kg3 Nc4 Kg2 Ne3+ fxe3 Bd7 Kf2 Bc8 Ke1 Ke7 h4 c5 b4 a5 h5 a4 h6 c4 g6 Kf6 d3 Kg5 Kd2 e1B+ Kc2 c3 g7 g3 b6 f4 b7 f5 b8B g2 h7 f3 d6 f2 d7 f1Q Ba7 f4 Rh3 f3 Ba3 f2 Rb1 Bb7 Bb2 Nf6 Ne2 g1B Rh6 Qh3 Nd4 f1Q Nb5 Bg3 Nc7 Rc8 Qe2 Be7 Re1 Qf4 Bb6 B1h2 Ba5 Rg8 h8R Bc6 Ne8 Nh7 Kc1 c2 Bd4 Bb5 Kb2 Nf8 Rb6 Bc6 Ka3 c1Q+ Bb2 Qhg4 Rh7 Qdc7 d8Q Qcd7 Qc7 Bf6 Rh6 Qc2 Rg6+ Kh4 Qd6 Bg5 Qd5 Qcc4 Qf7 Rc7 Rf6 Qc8 Qg6 Qgd7 Rf7 Rh8 g8Q Rh7 Bh8 Rg7 Rf6 Qcd5 Qe6 Qdc4 Qef5 Qg8 Qe6 Bf3 Qb3 Rc1 Qbf7 Bc6 Rf5 Qg4 Rc5 Bb8 Rc2 Qf4 Rd2 Bg3 Qh7+ Bh6 Qe4 Rg4 Qeg6 Bg5
1kq1NN1B/3P3r/1n1n1R1r/4qR1p/q2Q3P/Q3qPR1/P4n1b/n4K1Q w - - 0 1 legal: proof: c4 b5 e4 d5 cxb5 a5 b4 axb4 exd5 f5 f4 Bd7 Bd3 Be6 Be4 fxe4 Bb2 Bg4 Bc1 Bf3 gxf3 Qd6 Kf1 Qd7 Ke1 Qd8 d4 Kd7 h4 Kc8 b6 c5 d6 e5 d5 g5 f5 h5 f6 e3 f7 c4 Na3 c3 Nh3 e2 Be3 b3 Rh2 e4 Qc1 b2 Rb1 c2 Bd2 g4 Bc3 g3 Rf2 g2 Bb4 g1Q+ Rf1 Ne7 Nc4 Rh6 Nf4 Qe3 Rg1 Nd7 b7+ Kb8 Bc3 Ra7 Ng6 Nb6 d7 Qc8 d8Q Nf5 Rg3 Bd6 f8R Be5 Rf6 Nd6 Qd1 c1N Nf8 Nb3 Qd4 Bf4 Qe7 Na1 Rd1 b1Q Rc1 Ne8 Qa3 Qb4 d6 Qa4 Rb1 Be5 Rb5 Bf4 Rbf5 Be5 Rg2 Bh2 Bb2 Qc3+ Kf2 e1N Kf1 Qe3 Rg3 Nd3 Bc3 Nf2 d7 Ra6 Nd6 Rh7 Nb5 Nd6 Nc7 Qd2 Ne8 e3 Bb2 e2+ Kg2 e1Q Bc3 Qe5 Kf1 Qde3 Bb2 Ra8 Bc3 Ka7 b8Q+ Ka6 Qc7 Rb8 Qcc4+ Kb7 Qg8 Ka7 Qgg4 Rb7 Qh3 Kb8 Qg2 Ra7 Qh1 Ra6 Qd3 Qea5 Rfg6 Nf7 Rc6 Nc4 Bf6 Qae5 Qd4 Rb6 Re6 Rc6 Bh8 Nb6 Rh6 Re6 Rhg6 Nd6 Rh6 Ree7 Re6 Rh6 Ref6 Reh7
Nn3n2/2p2Q1q/2k1P1nN/2Pb3P/8/QQr4K/RRrN1q1P/q2B1n1q w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 e4 Ng8 g3 fxe4 Qg4 h6 Qd1 Be7 Bd2 Bh4 Bg5 hxg5 gxh4 Ba6 Na3 Bb7 Nb1 Bc8 f4 a5 Kf2 d5 Kg2 Kd7 c4 a4 b4 d4 b6 d3 b7 e3 e6+ Kc6 c5 g4 f5 g5 f6 e2 f7 e1N+ Kg3 a3 f8Q a2 Qc1 d2 Qd1 Nf6 Bc4 Ng2 Qg7 Nf4 Qb3 d1N Be2 Qd7 Nd2 Ng6 Qf7 Ne3 Qa3 Nh7 Bd1 Nhf8 Ngf3 Nf1+ Kg2 g3 h5 g4 Nh4 Rg8 Nf5 Ra5 Rb1 a1Q Nh6 Rg7 Rb2 Ra4 Qb3 Ra3 Qa2 Rc3 Qa3 Na6 b8Q Bb7 Qb3 Qe7 Qa7 Nb8 Qaa3 Rg8 Qf5 Qh7 Qf7 Ba8 b5+ Kb7 b6 Kc6 Kg1 g2 b7 Rc2 Kf2 g3+ Kf3 g1Q Kg4 g2 Kh3 Qf2 Rg1 Ne3 Re1 g1Q Re2 Qh1 Ra2 Ne7 Rb2 Rg4 Ra2 Rgc4 Rb2 Na6 Ra2 Nf1 b8N+ Kd5 Rb2 Neg6 Nd7 Kc6 Nb6 Nb8 Ra2 Bb7 Na8 R4c3+ Nf3 Rc1 Reb2 R1c2 Be2 Ba6 Bd1 Bd3 Nd2 Be4+ Kg4 Bf3+ Kh3 Bd5+
1r1n4/1rP5/bb1bRB2/2kb4/1pB3P1/N1PR4/rrQn2Pr/3QRK1B w - - 0 1 illegal: Other
1rn4R/1b3N1p/PR2P3/1rP3QB/4Prn1/Q3Qp2/1Bq1n2R/2b1k1Kb w - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 f3 Qb6 f4 Qd8 a4 g5 h4 e5 hxg5 Qb6 fxe5 Qd8 Na3 bxa3 Kf2 Ke7 c4 Ke6 g4 f5 e4 b5 a5 d5 c6 a2 g6 d4 g5 f4 a6 b4 g7 d3 c5 d2 c7 b3 g6 b2 Rh6 b1R Rh5 Qd3 Ne2 Nd7 Nc3 Rab8 Rh4 Nb6 Rh5 Rb5 Bg2 Nf6 g8R Bh6 g7 Qc2 Qf3 d1B+ Kg1 Ng4 Rh2 Bb7 Bb2 Nc8 Qe3 Bf3 Rb1 a1N Rd8 Rf8 g8Q+ Rf7 Qg5 Nb3 Rh8 Nc1 Bf1 Bh1 Be2 Nf6 Bh5 Ng4 Nd1 Rf5 Nf2 f3 Nh3 Rf7 Qa3 Rf8 Qge3 Rf4 Ng5+ Kd7 e6+ Kc6 Kf1 Ne2 Nf7 Rb3 Rd1 Kb5 Rd6 Kc4 Rc6 Rb5 Rb6 Ne7 c8Q Bg5 Qg8 Nc8 Qa1 Bh6 Qg5 Kb4 Qg1 Kc4 Qa4+ Kd3 Qa3+ Kd2 Qge3+ Kd1 Qab3 Bg7 Qb4 Bc3 Qb3 Bd2 Qa3 Bc1 Qeb3 Nd4 Kg1 Ke1 Qe3+ Ne2+
1k3n2/qnR3K1/1bPrB1Rp/1bbrp3/2P2P2/RB6/1P1BN2Q/1rQ3q1 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 g5 a4 d5 axb5 c5 h4 d4 Nc3 dxc3 d4 gxh4 dxc5 Bg7 Qd2 Bh6 Qd1 Bf8 Ke2 a5 Ke3 e5 Ke4 h3 g4 a4 f4 h2 c6 h6 g5 c2 f6 a3 b6 a2 g6 Qd7 b7 Kd8 g7 Kc7 f7 Bc5 f8Q Ra5 Qe7 Na6 Ne2 Kb8 Qh4 Ne7 g8B Ng6 Be6 Rd8 Kf5 Nf8 Bd2 c1B Rg1 h1Q Rg6 Qg1 Kf6 Qh7 Bfh3 Rd6 Bg4 Bb6 Qh1 Rad5 Qh2 Nc5 Bf5 Qd7 Bc2 Qh7 Bb3 Qd7 Be1 Be3 Qc1 Bf2 Rb1 a1R Bd2 Ka7 b8R Ba6 Re8 Bb5 Re7 Kb8 Kg7 Qa7 Rf7 Nb7 Rc7 Ra4 Ra1 Bfc5 Bd1 Ra3 Bc2 Rf3 Bb3 Rf1 Ra3 Rd1 Qc2 Ra1 Qc1 Rb1
2N2Br1/3K3q/2N4P/2B4n/1b1bQ1r1/1bpRn1p1/NP1Pr1Pk/BQ1r4 w - - 0 1 illegal: Other
r2rN1Q1/1P1q3K/Q1R2P1B/2q3B1/1Q2P1pp/2rNnPn1/bbr5/2N3k1 w - - 0 1 illegal: No proof kernel
5rR1/1n5q/2n4N/2bkNrR1/2rN1BP1/Q1p2Pp1/P1r1P1rn/1Q3QK1 w - - 0 1 legal: proof: d4 a5 g4 d5 c4 f5 cxd5 e6 gxf5 Ra7 b4 axb4 d6 Ra6 d5 Ra8 d7+ Ke7 d6+ Kf7 h3 g5 Nd2 b6 Ba3 g4 Bc1 g3 Bg2 Bb7 Nb1 Bc6 Bd5 Bb7 Bb3 Bf3 Bd5 Bg4 hxg4 exd5 Kf1 h5 f6 Ke6 f3 c5 f7 b5 Bg5 h4 Qb3 h3 Qd3 d4 Qe3+ Kd5 Na3 h2 Be7 c4 Nh3 b3 Qh6 d3 Qg7 d2 Qb2 d1R+ Kg2 b4 Rb1 c3 Qc1 b2 Qe3 b3 Qb6 Rf1 Ng1 Rh5 Bg5 Qc7 d8Q Nd7 Nb5 Ne7 Bf4 Nc6 Nh3 Nc5 d7 Nb7 Ng5 Bc5 f8Q Rc1 Qb8 Rc2 d8N Qh7 Ngf7 Rf5 Nd4 Ra4 Rbd1 b1N Nh6 b2 Ndf7 Nd2 Ne5 b1R Qb5 Rbc1 Qb1 Nf1 Rd2 Rc4 Qa7 Bb6 Qfa3 Re1 Qac1 Bc5 Qaa3 Rf8 Rg1 h1R Qd1 Rh5 Rh1 Rh4 Kg1 Rh5 Rh3 Rg5 Rh5 Rgf5 Rg5 Nh2+ Kg2 Rh1 Qf1 Rc1 Rb2 Rc2 Rb5 Qh8 Rg8 Qh7 Qfe1 Rf1 Qec1 Rf2+ Kg1 Qg7 Qf1 Qh7 Rg5 Nbd8 Rb8 Nb7 Ra8 R8f7 Rh8 Rf8 Rhg8 Rg2+
1kr1q3/1P6/BNp3pN/1r1PP2Q/q1q1B2N/1R1q3q/3b1BP1/1QK1b2n w - - 0 1 legal: proof: c4 d5 a4 dxc4 h4 b5 axb5 g6 h5 Nc6 h6 Nd4 Rh2 Ne6 Rh1 Ng7 hxg7 e5 d4 Qd7 b4 Qe6 e4 Nh6 d5 Bd7 Ra2 Bc6 Rd2 Qd6 Rd3 Bd7 Rd4 exd4 f3 Bf5 e5 Be4 fxe4 Ng8 Be2 Qe7 Bf1 Qd8 Kd2 Kd7 e6+ Kc8 b6 a5 e5 h5 b7+ Kb8 b5 f5 e7 c3+ Kc2 h4 e8N c6 Qd3 f4 Kd1 h3 Kc2 h2 Na3 a4 Qh3 d3+ Kd1 c2+ Kd2 f3 Qh6 f2 Nd6 Nf6 g8B Ne4+ Ke3 d2 Nf5 d1Q Nc4 a3 Be6 a2 Nf3 a1B N3h4 Ra5 Nb6 Ng3 Qh5 Bb4 Nh6 Be1 Bf5 Qe8 Be4 Bac3 Ba3 Qg4 Bc5 c1Q+ Kd3 Qa1 Kc2 Qa4+ Kc1 Rg8 Be2 f1Q Bf2 Qf5 Rg1 h1Q Bc4 Qhh3 Rh1 Qhg4 Rh3 Nh1 Rf3 Qh3 Rd3 Ba1 Rb3 Bac3 Bcd3 Qee6 Bc4 Rc8 Be2 Qe8 B2d3 Kc7 b8Q+ Kd8 Nc4 Qff3 b6 Q1e2 Rb4 Qfg3 b7 Qgf3 Nb6 Qf1 Ba6 Qc4 Rb5 Qfd3 Rb4 Rb5 Qd6+ Qhd7 Qe7+ Kc7 Rb1 Kb8 Qb4 Q7h3 Qb2 Qca2 Qc2 Q4c4 Rb3 Qaa4 Qb1 Bcd2+
R6B/2q2r1q/4K3/ppPnQPr1/3r3k/q1PqRb2/1P2R1Q1/NNQ4b w - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 f4 b5 d4 e6 dxc5 Nc6 a5 Ne5 Bh3 Nc4 e5 Nb6 axb6 Be7 Bg2 f5 Be4 fxe4 f5 Bf6 exf6 Ba6 Qd6 Bb7 Qd1 Bc8 Kd2 Kf7 Kc3 d5 Kd4 g5 Ke5 a5 h4 d4 b7 g3 b8Q g2 c3 g4 h5 d3 h6 d2 h7 e3 Qe1 d1B Qb7+ Qc7+ Kd4 e5+ Kd5 e2 Qb6 e4 Qd2 e1Q Qb7 g3 Qg5 e3 Nh3 g1R Qb8 e2 Qg4 g2 Bg5 Qh4 Nf4 e1Q Rh3 Qe3 Nd3 Ra7 Ne1 Bf3+ Qe4 Qe2 Nc2 Qf1 Be3 Qd3+ Bd4 Rd1 Ra4 g1Q Na1 Qgg4 Qb6 Bb7+ Qc6 Bh1 Re3 Ba8 Qf3 Rb7 Qd6 Ne7+ Ke5 Qgh5 Qg2 Rg8 h8Q Nd5 Qh6 Rg5 Re2 Qg6 Rc4 Qh7 Re3 Ke8 Ke6 Qe1 Be5 Qh4 Ra4 Qb4 Bd4 Qa3 Qe5 Qb8 Rb4 Rf7 Rc4 Qc7 Re2 Rg4 Qc1 Rg5 Rb4 Nb6 Rc4 Bf3 Rb4 Nd5 Ra4 Rd7 f7+ Kd8 Qeh2 Qc8 Qhf4 Rg4 Bg1 Qc4 Ke5 Ke7 f8R Qc6 Ra8 Qb7 Qh6 Qc7+ Qd6+ Kf7 Be3 Kg7 Bf2 Rf7 Ke6 Rd2 Qdg3 Kh6 Bd4 Kh5 Bh8 Rg5 Qe5 Kh4 Rb4 Qe4 Rd4 Rd1 Rd3 Qc4 Rde3 Rd4 Qcg1 Qd3 Q1f1 Rg3 Qc1 Rg5
1Q5B/b2p1krn/5q1n/1N2P2p/qr1q1B1Q/1nnPR2Q/1BP2P2/4NK2 w - - 0 1 legal: proof: b4 f5 a4 g5 a5 f4 b5 g4 h3 f3 gxf3 g3 Ra4 b6 axb6 Bb7 Ra5 Be4 b7 Bf5 Ra1 Bg4 hxg4 c6 b6 e5 f4 e4 Bg2 e3 Be4 Nh6 Bd3 Ng8 Bb5 cxb5 Kf1 Qc7 d3 Qd8 Na3 Qe7 Kg2 Na6 Bb2 Nb8 Qf1 Qf6 Rd1 Qd8 Rd2 exd2 e4 d1N f5 a5 f6 h5 g5 a4 e5 b4 g6 b3 g7 Rh7 Qe2 Na6 b8B Nc3 b7 Bc5 Kf1 g2+ Ke1 Nh6 Rh4 Ba7 Rh3 Kf7 Qf3 Nc5 Nb5 a3 Qg3 a2 Qh4 a1N Re3 N5e4 Nf3 Ng5 Bc7 Rb8 Ba5 Qb6 Qh3 Qd4 Qh4 Rc8 b8Q Rc4 Bd8 Rb4 Bb6 Kg6 g8Q+ Rg7 Qe6 Nh7 Qeh3 Kf7 Ba5 Ne4 Ke2 g1Q Ne1 Qg4+ Kf1 Nc3 Bd8 Qe6 Be7 Qa6 Bc5 Qa4 Bf8 Rg2 Bg7 Rg6 Bh8 Rg7 Bc1 b2 Bd2 Kg6 f7 b1Q f8B Nb3 Bc1 Qba1 Bb2 Kf7 Be7 Qd1 Bg5 Qf3 Bf4 Qc6 Nc7 Qe6 Nb5 Qf6
1QRr2r1/n2pkn2/1Nn1b3/p1R5/2rP4/qq5r/N2PRP1P/2QB1K1Q w - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 f5 exf5 c5 Be2 Nc6 Bf1 Nb8 b4 e6 c3 Qg5 b6 Qe7 b5 Qd8 Ba3 Be7 Bb4 cxb4 Ke2 Bc5 Ke1 Bd4 cxd4 Rh3 Ra2 Rh4 Ra1 Rh8 f6 a5 f7+ Ke7 f8R g5 b7 g3 b6 b3 Qf3 b2 Be2 g2 Qc6 e5 Ra4 e4 Rf6 e3 Ba6 g4 Nh3 g1Q+ Bf1 g3 Ra2 g2 Ke2 Nh6 Ra1 Qf8 Qc1 Nf7 Rf5 Nc6 b8Q Bb7 Nf4 Rh3 Nc3 b1N Na2 Na3 Rc5 Nb5 Rb1 Ba6 b7 Nba7+ Ke1 Bc4 Nd5+ Ke6 Qg3 Rd8 Nb6 Ke7 b8Q Be6 Qf3 Qg8 Rbb5 Qg3 Rc3 Qd6 Ke2 Qa3 Rbc5 Qb3 Kd3 Qa3 Be2 Qd1 Re1 g1R Qh1 Qdb3 Bd1 Rgg8 Ke2 Qd5 Kf1 Qdb3 Rg5 e2+ Kg1 Nce5 Rc8 Nec6 Kg2 Rgh8 Rc5 Rhf8 Rg1 e1R Rf1 Ree3 Re1 Rc3 Kf1 Rg8 Re2 Rc4
Q4q2/P3qN1P/bQnQ2bB/1n1P2K1/3b2B1/3P1Bp1/1R1N1p1k/1nr4n w - - 0 1 legal: proof: c4 b5 a4 h5 g4 f5 f4 a5 Ra3 e5 Rg3 Ra6 Rg2 Rf6 fxe5 d5 cxd5 f4 b4 Rf5 gxf5 axb4 Rg4 hxg4 Kf2 Kd7 h4 g5 e4 c5 f6 c4 h5 f3 Kg3 c3 e6+ Kd6 e7 Ke5 e8Q+ Qe7 a5 f2 h6 b3 a6 b4 a7 b2 f7 c2 h7 b3 Bc4 Nh6 Be2 Ba6 Qb5 Nc6 Nc3 b1N Qf1 b2 Bf3 Bg7 f8Q Nf7 Qd1 Nd6 Qa8 Rc8 Qb6 Nb5 Nh3 Bh8 Re1 Bf6 Re2 Bh8 Kh2 g3+ Kg2 g4 Ng5 Kf4 Nf7 N1a3 Nb1 Bd4 e5 Qf8 e6 Rc7 e7 Rc8 Nc3 b1B e8B Rc7 Bd7 Qe7 Bb2 c1Q Qb3 Bg6 d3 Nb1 Ne4 Qcc5 Nd2 Qf8 Qb4 Qce7 Bc1 Rc8 Kh1 g2+ Kh2 g1N Qd6+ Be5 Re1 Ne2 Kg2 Ng3 Re2 Nh1 Kh2 g3+ Kh3 Qe6+ Kh4 Kf5 Nb3 Bd4 Rb2 Rc7 Nd2 Rc8 Qe7 Kf4 Qf6+ Ke3 Kg5 Qee7 Bg2 Ke2 Bg4+ Ke1 B2f3 Rc7 Nc4 Kf1 Bf4 Kg1 Nd2 Kh2 Be3 Qee8 Qd6 Qee7+ Kf4 Nb8 Qbc6 Bh5 Qb6 Rc1 Kf5 Nc6 Bh6 Bg6+ Kf4 Qee8 Kg5 Qee7+
5Q2/n2P2Qq/pb1br2p/2p1Nn2/Q3PKPr/6bq/2P1RNk1/1BN4R w - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 g5 hxg5 b5 axb5 Bg7 Nc3 Bh6 Nb1 Bf8 f3 e5 Rh6 e3 Ke2 Bb7 Rh1 Bd5 Kd3 e2 Kc3 e4 Rh3 e3 Rh1 Be4 fxe4 Bd6 Ra6 Be7 Ra1 Bf8 d4 Ke7 Kd3 Kd6 b4 e1B g4 f5 b6 c5 g6 a6 g7 f4 b7 e2 d5 Ke5 d6 f3 Ke3 h6 b5 f2 b6 Qd7 Nc3 Be7 Nh3 Nc6 b8N Na7 Na2 Ba5 b7 e1B Bc4 f1Q Nf2 Bb6 Rb1 Qf5 d7 Qh7 Bb3 Bd6 Nc6+ Kf6 b8Q Kg5 Ne5 Ne7 Qd2 Rf8 Qa5 Rf5 Qf8 Re8 Qa4 Qg2 Bd5 Qh2 g8Q+ Kh4 Be6 Kg3 Qgg7 Kg2 Bb2 Rh5 Nc1 Qh3+ Kf4 Nf5 Ba2 Bea5 Bc3 Re6 Be1 Bbc7 Rb3 Bb8 Re3 Rh4 Bb1 Bbc7 Nd1 Bcb6 Bg3 Be1 Re2+ Bf2 Ree1 Bg1 Nf2 Bh2 Re2 Bxg3#
qr3n2/2P3n1/kbp1R3/6q1/PKp2Q1N/B2rpRQ1/Pb1P4/NNq3Q1 w - - 0 1 illegal: No proof kernel
1RNR4/q1K3n1/3P1q1P/p1P1Q1bQ/b1b1P1RB/5qp1/n1p2N2/r3k1N1 w - - 0 1 legal: proof: f4 e5 b4 exf4 a4 h5 g4 c5 gxh5 b5 bxc5 b4 Ba3 a6 Bb2 Qc7 Bc1 Qd8 c4 a5 Bg2 Ra7 c6 d5 c5 Rd7 Be4 Rc7 Bd3 Rb7 Bc4 Rb5 axb5 dxc4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Kd5 d4 g5 h4 g4+ Kf2 Ke4 h6 f3 Kg3 f2 c7 f1Q h5 b3 h7 f4+ Kh2 c3 b6 b2 e3 c2 d5 f3 Kg3 f2 d6 Nh6 b7 Na6 b8R Nb4 Ra4 Qf6 Nd2+ Kd3 Qe1 b1B Ne4 Bd7 c8N Nf5+ Kf4 g3 Rh4 Qf7 Ke5 Bh6 Rg4 Be8 Rg8 Qa7 Ke6 Bg5 Rf8 Bc6 Rd8 Na2 h6 Rf8 h8Q Bb5 Qe5 Ng7+ Kd5 Rf4 Rb4 Ba4 Bd2 Qe2 Qd1 f1Q Rc4 Qef2 Qh5 Qf3 Bc3 Rf7 Ba1 Qf6 Nf2+ Kd2 Rg4 Ke1 e4 Rb7 Bb2 Rb5 Kc6 Qe2 Rb7 Qef3 Kc7 Rb3 Bd4 Ra3 Ba1 Nc3 Bb2 Ra1 Bc1 Ba2 Bf4 Qa6 Rb8 Bc4 Be3 Na2 Bd4 Bc1 Be3 Bd2 Bg5 Be3 Bh4 Bg5 Nd1 Qa8 Nf2 Qa7+
k1rq1r2/4RBQ1/N1P1q2N/1p3p1P/2P2Pq1/5Rb1/b2QR1p1/Q1K1q2n w - - 0 1 legal: proof: b4 c5 bxc5 e5 a4 h5 g4 hxg4 d4 b6 dxe5 Nh6 c4 Ng8 a5 Nc6 a6 Na5 Bg5 Nb7 axb7 Qc7 Bd8 Qxd8 Kd2 d5 b8R Kd7 h4 Kc7 e4 a5 f3 g5 h5 a4 c6 d4 e6 d3 e7 b5 e8Q g3 e5 g2 e6 g4 e7 g3 Qe1 a3 Ra2 Bf5 Rh3 Nf6 Ne2 g1Q Nd4 g2 Kc1 Ne4 Re2 a2 Nd2 Ng3 Ne4 Nh1 Nc5 Qf2 Qd2 f6 Rb6 Rc8 Qf7 Bg6 Ra6 Kb8 e8Q Bd6 Qe5 Rf8 Ra7 Be4 Rc7 Ka8 Re7 Bg6 Nf5 Bc7 Qd4 Bg3 Q4b2 a1Q+ Qb1 Bh7 f4 Qe5 Qg7 Qe6 Nh6 Be4 Na6 f5 Qba1 Bh2 Rf3 Bg3 Qc2 d2+ Kb2 d1Q Qd2 Qa4 Kc1 Bd3 Ree3 Bb1 Bd3 Qb3 Be4 Ba2 Re2 Qbd3 Bd5 Qde4 Rd3 Qef3 Rc3 Qg4 Rf3 Qed6 Bg8 Qe6 Bf7 Qe1+
2n5/PBnPQp1p/5K2/n1bN2Q1/R1Q2pn1/3r1P1n/RrbR3P/N1k5 w - - 0 1 legal: proof: c4 b5 e4 d5 exd5 Na6 a4 Nb8 cxb5 a5 b4 axb4 b6 Bb7 a5 Bc8 a6 g5 Bb2 Qd6 Be5 Qc5 Bf4 gxf4 Bc4 Qc6 Bd3 Qb7 Bf1 Qa7 bxa7 Bh3 Bb5+ Bd7 Bf1 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 c5+ Ke4 e5 d4 c4 g4 b3 f3 c3 g5 b2 g6 c2 g7 c1N Qe1 Ne7 g8Q Nbc6 Qgg3 Na5 Qgf2 Ne2 Ra2 Rb8 Na3 b1N a8R Rb2 Nc2 Na3 Na1 Nb5 a7 Bd7 Rd8 Nc8 Bh3 Be7 Qff1 Nc7 Qh4 Re8 Qg5 Bf8 Ra4 Re6 Kf5 e4 Qc1 e3 Qc4 Re8+ Kf6 Re7 Re8 Bf5 Rd8+ Rd7 Bg4 Bc2 Be6 Nc3 Ne2 Nd1 Nc3 e2 Rf1 e1N Rf2 Ng2 Bf5 Nge3 Be4 Ne7 Rd2 Nf2 Rb8 Rb1 Rb2 Nc8 Rba2 Nh3 Bf5 Rd8 Be4 Kd7 d6 Rb2 Nd5 Be7+ Kg7 Ke6 d7 Ng4 Qb3 Rf8 d8Q Bc5 Qc4 Rh8 Qe8+ Kd6 Qee5+ Kc6 Qee7 Rd8 Ne3+ Kb6 d5 Rd7 d6 Rd8 Qce6 Kb5 Bb7 Rd7 Nd5 Rd8 R4a3 Kc4 Ra4+ Rb4 Rg2 Kd3 Rf2 Rb2 Rg2 Ngf2 Kf6 Kd2 Qe2+ Kc1 Qc4 Nd3 Rd2 Ndf2 Kg7 Ng4 d7 Re8 Qf8 Re3 Qfe7 Nh6 Kf6 Rd3 Ke5 Ng4+ Kf5 Ne3+ Kf6 Ng4+
1r1R2r1/2k3b1/PN1NPNRb/rP6/1p1p3n/4Q2K/1nb2p1P/1QRB2b1 w - - 0 1 legal: proof: f4 a5 g4 e5 c4 exf4 c5 h5 gxh5 b6 cxb6 Bb7 Nf3 Ba6 Ng1 Bc8 b4 c5 d4 c4 b5 Qc7 Ba3 Qd6 Bb4 Qc5 dxc5 axb4 Kf2 Kd8 Kg2 d5 e4 g5 a4 f5 a5 g4 e5 d4 a6 g3 h6 c3 c6 f3+ Kh3 c2 b7 c1B h7 f2 Nc3 g2 Nge2 g1B Ne4 Ne7 N2g3 f4+ Nf5 f3 Nf6 Rg8 h8R Nd7 b8Q Nb6 Be2 Bch6 Qb1 f1R Bd1 Nc4 e6 Bfg7 Qe5 Rb8 Qe3 Bb7 Ra3 Kc7 Nd6 Ng6 Rc3 Nh4 Rc1 Bf2 Rg1 Nb2 Rg6 Bg1 Qbe4 f2 Qb1 Kb6 c7 Be4 Qg5 Re1 Qe3 Bc2 c8N+ Kc7 Nb6 Re2 Qg3 Re3 Qf3 Ra3 Qe3 Rge8 Rf8 Ra5 Rh8 Re7 Rd8 Re8 Rg3 Rh8 Rg6 Rg8
n1Kn4/6Nn/1bP1Rn2/1Pk3pQ/P3pbq1/pR2RQPb/1b6/B3Q2B w - - 0 1 legal: proof: e4 h5 d4 f5 Nd2 c5 dxc5 fxe4 g3 h4 Ndf3 h3 Nh4 Nf6 Ng2 hxg2 Be2 Ng8 Bd3 Nh6 Bf1 Ng8 a4 g5 b3 b5 Qd5 a5 Qd4 Rh6 Qd1 Rb6 Qd3 b4 Qd1 Rb5 axb5 a4 Kd2 a3 Ke1 Ra4 bxa4 Bg7 Nh3 Bh6 Ng1 Bf8 Kd2 e5 Ke3 Ke7 f4 d5 h4 b3 c4 b2 h5 b1N c6 Kd6 h6 Bh3 c5+ Ke6 h7 Bg4 h8Q Nc3 c7 Bd6 c8R Qd7 Rc6 Bh3 Nf3 Nf6 Bb2 Nh7 f5+ Ke7 Ra6 Nc6 Rb1 Nd8 f6+ Ke6 Rh2 g1B+ Rf2 Qc8 f7 Ke7 Be2 Qg4 f8Q+ Kd7 Qe1 d4+ Kd2 e3+ Kd3 e4+ Kc4 d3 Nd4 d2 Bf3 d1N Ne6 e2 Bh1 Nd5 Ng7 Bc7 Qf3 N1c3 Re6 Ndf6 Ba1 Bf4 Rb3 Ncd5 c6+ Kc7 Kc5 Nb6 Re3 Na8 Rf1 Bf2 Qe8 Bg1 Qh5 Bf2 Qc3 Bg1 Rb1 e1B Rb3 Bgf2 Qc1 Bc3 Qe1 Bb2 Re5 Kb8 Kd6 Ka7 Ke7 Kb6 Re6 Ng8+ Kd7 Ngf6+ Kc8 Kc5 Qf1 Be1 Q1f2 Ba5 Qe1 Bb6
2bRN3/QPrP2pb/1b1b1p2/p4qQ1/1Br1rB2/3PK3/P2R2r1/k2B3R w - - 0 1 illegal: No proof kernel
6b1/RP5n/P1p5/p1Nn1nPp/1N5B/1Q2rPpk/1bRq2Rq/1Q3N1K w - - 0 1 illegal: No possible last move
R1B2q1k/nP1p3r/K4Pn1/bR1R4/2bp2r1/pP2BpP1/1N2p1BQ/5Q2 w - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Qb6 f4 Na6 f5 Qc6 Nc3 Qg2 Nd5 Qg3+ hxg3 Nb8 Nf4 gxf4 Kd2 Kf7 Kd3 a5 Kc4 h5 g5 e5 g6+ Ke8 f7+ Ke7 g7 Kf6 b3 f3 b6 e4 Kb5 h4 c4 a4 c5 e3 c6 h3 c7 e2 Bg2 h2 Nh3 Be7 Be3 Rh4 Nf4 Rh7 Qf1 Bd8 Nd3 Nc6 Nb2 Nge7 g8R Ng6 Ra2 Bb7 c8B Na7+ Ka5 Bd5 f8Q+ Bf7 Qh6 Bc4 Re8 Kf7 Re5 Kg8 f6 Kh8 Rb5 Bc7 Ka6 Rb8 Bb7 Rg8 Bc8 Bd8 b7 Ba5 Rg1 h1Q Qh2 Nf4 Ra3 Rg4 Ra1 Ng6 Rc1 Bf7 Rcc5 Bc4 Rd5 Ne7 Qf2 Ng6 Ra1 Qe1 Qf1 Qb4 Rc1 Qf8 Rc2 Bd3 Rc4 a3 Ra4 Bc3 Ra5 Bc4 Kb6 Nc6 Ra8 Ba5+ Ka6 Na7
2k1N3/n1pr2RP/Pp3K1n/p2rQ3/3B4/1PnBpp2/2P1nB1R/Qn2Q3 w - - 0 1 illegal: No proof kernel
4B1Q1/r5n1/3n1b2/p1B2QKN/Pr1Pb1QP/Nqrn2q1/1qR3Pb/1N5k w - - 0 1 illegal: No proof kernel
R2nb3/2nr1r1b/Nb4PQ/6KN/1qp5/bkPr2R1/1P1bPQ2/QnB2R2 w - - 0 1 illegal: No proof kernel
Q1Rb2Bk/P1K5/rpN2n1q/1P6/br4PN/N1r2Q2/4nB1P/1Qbr1r1n w - - 0 1 illegal: No proof kernel
b1q2nk1/r4nN1/PPrn4/1N2PR1n/1RQQ2b1/1pBr4/1P1b3R/n1Q4K w - - 0 1 illegal: No proof kernel
nKr2RQ1/r1rB1P1b/p3q2N/P1k1b1Pn/2P2b2/3Q4/4bNR1/Q2Nbn2 w - - 0 1 illegal: No possible last move, all moves rejected
b3R3/Bbn2Bn1/1P1qrrP1/KQ1b4/R2bp3/7Q/1n2PRrP/1b1B2kN w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 g4 h6 g6 Ba6 Nc3 Bb7 Ne4 Bc8 g5 h5 Nf2 Na6 Ng4 hxg4 Ra2 Nb8 Ra4 Nc6 Ra1 Nb8 Kd2 e5 b4 Ke7 c4 Kd6 c5+ Kd5 g7 Ke4 g6 f5 b6 a5 c6 d5 c7 g3 b5 f4 b7 a4 b6 d3 Kc3 g2 Ra3 d4+ Kc4 f3 Kb5 d2 Qc2+ d3 Qb1 Ke3 Nh3 g1R Rc3 a3 Bb2 d1B Qa1 a2 Rc1 d2 Rb1 f2 Ng5 Na6 b8Q Rg2 Ne4 Nf6 g8R Nh5 Nc3 Ng7 Na4 Bb3 Nc5 d1B Ka5 Bdc2 Ne4 Qd6 Ng3 Bb7 c8B B3d5 Bd7 Nc7+ Qa7 Rh5 Ba4 Re8 Qa6 Re6 Qb5 Rf5 Rh8 Be7 Re8 Bf6 Re1 Bb1 Bd1 Ba8 Bc3 e4 Be5 Rf4 Qab2 a1N Q2b4 Nc2 Qa3+ Bb3 Rg1 Nb4 Nh1 Rf5 Bg3 Nd3 Be5 Bbd5 Qab3 Rg3 Bh3 f1B Rg2 Rf4 Rf2 Rg2 Qc3 Rf5 Bg3 Bd4 Bg4 Rff6 Be5 Re7 Be6 Bdb7 Bf7 Ree6 Qcc6 Nb2 Qd7 Rg5 Qc8 Bh3 Rg1 Rg2 Rgf1 Re7 Qg4 Bd5 Qh4 Bc8 Qh3+ Kd2 Rg1 Bcb7 Re1 Ree6 Rg1 Rg5 Rg3 Ke1 Ra3 Rg2 Ra4 Rg4 Rg2 Kf1 Rf2+ Kg1 Bf4 Rg2 Be5 Qc6 Bg3 Na6 Bb8 Qd6 Ba7 Nc7
1nQ1Rq1B/4nBK1/p4Q2/2Q1P3/bb2nn2/P1brr1N1/Pr1PR1B1/n5k1 w - - 0 1 illegal: No possible last move
1qn2n1r/k1q1b3/r2P1QB1/1Qr1QP1P/1p1B1br1/3r1R2/1P4bR/B2N1K2 w - - 0 1 illegal: Other
2B1Nb1k/4Rnp1/rrR1r2n/P2KPq2/Q2n2P1/1Qr1q1P1/3r3Q/R4bB1 w - - 0 1 illegal: No proof kernel
6NQ/q1PP1n2/2bp1nQr/R1n1k1K1/2b2R1P/2q1b3/1b1Pr2Q/b1BN3N w - - 0 1 illegal: No proof kernel
2N3rr/2P1Qq2/2Pq1r2/N2RQ2P/kB4qp/7P/3bQRnn/1bq1R1Kn w - - 0 1 illegal: No proof kernel
BKb5/7B/Q1qNq3/pPrnB1bQ/2P3nq/PbR1r3/3Pq3/kn3R1R w - - 0 1 illegal: No proof kernel
1b1Rrn2/5b2/q5P1/qr2QqPp/b3R2B/rP4R1/kN2Q1NP/rN3nK1 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 e5 d4 exd4 e3 c4 Bd3 cxd3 Kf2 Ke7 c4 Ke6 g4 f5 g6 d5 b6 a5 b7 h5 c5 a4 c6 d2 g5 a3 e4 a2 c7 d3 e5 d4 Qg4 Kd5 e6 Kc4 e7 Kb3 e8R d1Q Re3 f4 Rg3 f3 Be3 d2 Rh3 d3 Qd4 Nf6 Qd6 Qf1+ Kg3 d1R Qa6 f2 Ne2 d2 Nf4 Bd6 Na3 Be6 c8N Ng4 Nb6 Nd7 b8Q Re8 Nbc4+ Qb6 Kf3 Bf7 Ng2 Nf8 Bc5 Rde1 Rd1 a1R Nb1 R1e5 Be3 Qd3 Rhe1 f1Q+ Kg3 Qd5 Bf2 Ne3 Qb5+ Ka2 b3 Ra3 Qc7 Qa5 Nb2 Qe6 Qcc5 Bb8 Qd4 Rc5+ Qe5 Qea6 Kf3 Qd3 Bh4 Nf1+ Kf2 Qf5+ Kg1 Rd5 Re4 Rc5 Rde1 d1B Rg3 Be2 Rd1 Bec4 Rd6 Bce6 Rd2 Bd7 Qe2 Ba4 Rd8 Rb5
4Qn2/k1N4n/2q1pn1r/1b1N2R1/1r3QK1/P1rnPP1R/Rb2b1QP/qB6 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 cxd5 f5 gxf5 h6 Bb2 Na6 Bf6 Nb8 Bg5 hxg5 d4 Kd7 a3 c5 d6 Kc6 e3 Kb6 Ke2 g4 f6 g5 f3 e6 d5 c4 d7 c3 d6 c2 f7 c1N+ Kf2 g3+ Kg2 g4 Ne2 b3 Nbc3 b2 Ra2 b1B Rg1 Bd3 Ra1 Qe8 d8R Ka7 d7 b5 Rh1 b4 Na4 b3 Nf4 b2 Ne2 b1R Nc5 Rb4 Nf4 Bg7 f8Q Rh6 Ne4 Bb5 Qa4+ Bca6 Nc3 Nd3 Nfd5 Nf6 Nc7 Bh8 Qg8 Bg7 Kg1 g2 N3d5 Bh8 Rc8 Bg7 d8Q Qc6 Qge8 Nbd7 Ra2 Nf8 Qd6 Rb8 Qc2 Rb3 Qb4 Rc3 Qf4 Ne1 Qg5 Bc4 Kf2 g1N Kg3 Rb4 Na8 Nh5+ Kh4 g3 Rc7+ Rb7 Qf7 g2 Qd2 Rh7 Re7 Rd3 Qff6 Nh3 Qfg6 g1Q Nac7 Rb4 Qe8 Bab5 Qf4 Bb2 Be2 Qf1 Rg1 Rc3 Bd3 Ng5 Rg3 Qg1 Kg4 Rh6 Rg7 Ngh7 Rg5 Qf1 Rh3 N5f6+ Kg3 Qg1+ Qg2 Qf1 Be4 Be2 Bf5 N6d7 Bc2 Nd3 Kg4 Qa1 Bb1 Ndf6+
5qq1/K4Q2/1pQPB1bb/1rnR1QP1/1N5N/rPP1b3/2r4R/nbk3Nq w - - 0 1 illegal: No proof kernel
RQ2N2k/2b3nN/1PbP2nn/4P2r/pBNnQR2/1nb5/P4q2/K1R1nr2 w - - 0 1 illegal: No possible last move
1Q1r1bR1/2QN4/p1n5/PPb1NKbq/PqBB4/b1Nn1Pbk/2b4B/3r4 w - - 0 1 illegal: No proof kernel
N1Qq2N1/3r1rR1/1P1n1rN1/5bK1/2PR1p1r/R6n/qk2PP1b/3rr1BQ w - - 0 1 illegal: No possible last move
6r1/p2n1n1P/2R1QRbP/2BN4/2kbn3/2bb4/PPBQ1n1r/2RKn1Bq w - - 0 1 legal: proof: e4 b5 d4 e5 g4 h5 gxh5 f5 c4 bxc4 Nd2 Bd6 dxe5 Be7 e6 Ba3 e5 Bf8 Ne4 fxe4 h4 Ke7 f4 d5 h6 c5 h7 g5 f5 e3 h5 g4 Rh4 c3 Be2 c4 Qb3 d4 Kd1 c2+ Ke1 d3 Nf3 c3 Nd4 g3 Bd2 c1N Kd1 c2+ Ke1 g2 Ba5 g1B Rh2 Bg7 Qd5 Nd7 Rf2 Ngf6 Nb5 Ba6 Nc3 Ne4 Bd1 e2 Bb6 Qc8 Qa5 Qc6 Bd4 Rag8 Nd5+ Ke8 e7 Kf7 Rf4 Qb7 Bb6 Bd4 e8R Bc4 Rc8 Bf6 Nb4 Ke7 e6 Kd6 e7 Bb5 Bc7+ Kc5 e8Q Kc4 Nd5 Ba6 Qd2 Bc3 Qe6 Bfd4 Bd6+ Nec5 Nb4+ Qd5 Rc6 Kb5 Rf2 Qg2 Nd5 Qe4 Bh2 Qf3 Bg1 Qh1 Ne3 Kb4 Rg2 Bc4 Rg6 Kb5 Rf6 Kb4 Kf2 e1N Qe2 d2 Kf1 Ne4 Nd5+ Kb5 Rb1 Ncd3 Qh2 c1N Bc2 d1B Qd2 Rg2 h6 N3e5+ Qe2 Ncd3 Qd2 Nf7 Ra1 Bh5 Rc1 Rg4 Ke2 Rhg8 Kd1 Bg6 Nf4 Rg2 Nd5 Nd8 Rf7 Rh2 f6 Nf4 Rf8 Nh3 f7 Bf1 Re8 Bc4 f8B Bd3 Bc5 Kc4 Re7 Ne5 Rf7 Nd7 Rf3 Nf7 Rf6 Nhf2+
1QR1rb2/n2pBBR1/b1r1QBq1/6n1/kPP4R/P2P2bN/1Kn2r2/3nb3 w - - 0 1 illegal: No proof kernel
QNNB2K1/n1P1prPb/N3BR2/5b1r/PbrQP1k1/1n3rqb/6q1/5B2 w - - 0 1 legal: proof: d4 a5 f4 h5 b4 g5 fxg5 c5 dxc5 axb4 a4 Bg7 g4 Ra6 g6 Bf8 g5 Ra7 Ra3 Ra6 Rg3 Ra8 Rg4 hxg4 Kd2 f5 Ke3 d5 Kd4 Kd7 Ke5 b5 c4 f4 h4 f3 g7 f2 e3 d4 g6 d3 h5 d2 h6 b3 h7 b2 Bd3 f1R Rh2 b4 Rh1 g3 Nh3 b3 Nf4 g2 Nd5 g1Q Rh6 Rf7 Nbc3 b1B Ne4 b2 Nb4 Nf6 g8B Bg7 Nc6 Qg2 Bf1 Qc7+ Kf5 Bc2 Qg4 d1B Bd2 b1R Ba5 Qcg3 Bd8 Rb4 Qf4 Bg4+ Kg5 Na6 Nb8+ Ke6 c6 Nc7 c5 Nb5 c7 Nd7 c6 Bh3+ Qg4+ Ke5 Nc5 Na7 Nca6 Rc4 Kh5 Bf6 g7 Nc5 Qd4+ Kf5 Rg6 Nb3 Kh6 Bd7 c8N Be5 Re6 Bd6 Rg6 Be4 Re6 Kg4 Rf6 Rf8 Bf7 Bf5 Be6 Rf7 c7 Rhf8 h8Q Bb4 Qd3 Bc6 e4 Bb5 Qg8 Be8 Qd4 Nc6 Nc5 Ra5 Nca6 Na7 Bd7 Be6 Kh7 Rg5 Kh8 Bf5 Be6 Rh5+ Rh6 Rf6 Bd5 Bh7 Bf7 Rf2 Rf6 Rf3 Bd5 Bd7 Bf7 Bdf5 Bd5 Rf7 Qe8 Qh4 Qc6 Qhf2 Be6 Qfg3 Qa8 Bg6+ Kg8 Bh7+
3bkN2/1N5r/B1nQpn2/P1q1n3/1Q1rnBb1/1RPPPN2/2bb4/K3q1Q1 w - - 0 1 illegal: No proof kernel
RNq2r1q/2R1q3/3P1pQ1/3B3P/1kqn4/1bb2bBb/B2R1PP1/1r3QnK w - - 0 1 illegal: No proof kernel
5b2/QPq2qrB/1r4NK/2p1Pp2/BRn1bP2/1Bn4N/bkP1r1Nn/4Q3 w - - 0 2 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 g4 f4 Na6 b4 Nb8 Ra2 Bc5 Ra3 Bf8 Bd2 h6 Rf3 gxf3 g4 Nc6 g5 Nb8 g6 Rh7 Be3 Bb7 Bc5 Bc8 Be7 Rh8 Bg5 hxg5 Kf2 Ke7 Kg3 Ke6 Kg4 a5 h4 f5+ Kg3 d5 e4 c5 h5 a4 b6 g4 g7 f2 b5 a3 h6 d4 b7 d3 h7 a2 b6 a1Q Na3 d2 Ne2 Ne7 Kh4 g3 Kg5 g2 Kh5 g1R Qc1 d1B Nc4 Qa7 Ne3 Nd5 Kh6 Nc3 Ng2 Nd7 b8Q Qdc7 b7 Qa2 Qd2 Ra6 Qa7 Nb6 Qe1 Nc4 Rh3 Rg8 h8N Rb6 Ng6 Rh1 Ng1 Bf3 Be2 f1N Bd3 Nh2 Rg3 Qb3 Nh3 Rf1 Be2 Rf2 Bd3 Kd7 e6+ Kd6 e5+ Kd5 e7 Kd4 e8B Re2 Ba4 Be6 Be4 Bf7 Bd5 Be4 Re3 Qb5 Rg3 Qbd7 Rf3 Be6 Re3 Qf7 Rf3 Nb1 Rb3 Nc3 Rb4 Rh8+ Kg5 Rh7 g8B Rg7 Bh7 Nd1 Qf1 Kc3 Kh5 Qfe7 Kh6 Qf7 Bb3 Kb2 Bc6 Nc3 Bca4 B6d5 Qe1 Na5 Bc4+ Ka3 Bcb5 Ba2 Bb3 Kb2 B5a4 Nc4
3bQ2Q/RN4br/r4rq1/B1N2b2/1PnP4/RpPK4/1PpQN1nq/1k4n1 w - - 0 1 illegal: No possible last move, all moves rejected
7R/Q2P2n1/1N1PB1nq/K1k3p1/1qrp2NQ/R1b2bP1/2QPbR2/3r2nr w - - 0 2 illegal: No possible last move, all moves rejected
6q1/PBrn4/1R4Q1/1q1rN1p1/3nbP2/1R1PQnPN/Kbp3rk/2RNq3 w - - 0 1 illegal: No extended proof kernel
2q4Q/nr4NB/3pBkb1/2q1r3/1nK1R1pr/3R1P1P/P4bP1/B1Q1qQb1 w - - 0 1 illegal: No possible last move, all moves rejected
2Q4b/Q4r2/1N1Pp1n1/2KNR1qR/4Pb1P/2qRN2r/2pPb1Bk/2qnn3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 b3 fxg4 Ba3 h5 Bd6 h4 Bg3 hxg3 e4 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 h3 a5 b6 c5 b4 g5 f3 e6 b5 g2 d6 Kg3 b7 a4 f4 a3 b6 a2 f5 Nd7 b8R Ba6+ Kc3 c4 Kd4 c3 b7 c2 f6 Nb6 f7 Qf6+ Kc5 Nd5 Rd8 Ra7 b8N Nc3 Bb5 Bh6 f8Q Ne7 Ba4 Be2 Rc8 Ng6 Bb5 Rf7 Nf3 g1N Nd4 Nf3 Nd7 Ne1 Nb6 Rhh7 Qc1 Nd1 Nf5+ Kg2 Rb8 g3 Nc3 g4 Qc8 Bf4 Ncd5 Qc3+ Bc4 Rh5 Qa3 Rh6 Rb1 a1B Qa7 Rh5 Rh2+ Kg1 Rb4 g2 Rb3 g3 Ra8 Qa5+ Rb5 Bh8 Nfe3 Qc3 Rb3 Kf2 Rh1 g1Q Rb5 g2 h4 Rg5 Rh3 Rg3 Rb8 Qf1 Rb7 Kg1 Re7 Rf8 Rh7 Rf7 Rh5 Rf3 Rg3 Kh2 Kc6 g1Q Nb4 Nb2 Nd1 Bd3 Rbe5 Ng2 N4d5 Re3 Kc5 Qe1 Nf2 Qc1 Nd1 Ne1 Rf3 Qg5 Rg3 Qb3 Ba6 Bf1 Be2 Rd3 Bf3 Be2 Bg2 Rf3 N1e3 Nd1 Nf5 Rf2 Rc3 Rf3 Rd3 Rh3 Nfe3 Qc3+
2r5/pN2rbq1/B4N1b/P2Brb1N/KqQ5/1Pq4p/1kB2QPP/2n2R1n w - - 1 2 legal: proof: d4 e5 dxe5 f5 e4 b5 c4 Bd6 cxb5 Nh6 e6 Bf8 e5 Ng8 f4 Be7 a4 Bf8 Ra3 g6 Re3 g5 Re4 fxe4 f5 Ba6 Be3 Bc8 Bf4 gxf4 Kd2 Ke7 Kc3 c5 Kb3 h5 a5 d5 b6 d4 b7 f3 Bd3 e3 Qd2 f2 Qc3 f1B Qb4 e2 Ka4 e1Q b3 h4 Be4 h3 Nf3 d3 Bc6 d2 Nc3 d1R Ka3 Nh6 Qc4 Qd4 Ba4 Nd7 b8N Rh7 Bb5 Ng4 Ne2 Bh6 Nh4 Nf2 Ka4 Qec3 Ng3 Re1 Rg1 Nh1 Ba6 Qg4 Nh5 Qg7 Qd4 Bc4 Rf1 Bd5 Qf4 c4 f6+ Kd8 f7 Kc7 f8Q Nc5+ Ka3 Qd4 e7 c3 e8B c2 e6+ Re5 e7 Kd6 Bf7 Nd3 Nf5+ Kc5 Nd6 Nc1 e8B Bf5 Qg4 Qe4 Nd7+ Kd4 Ndf6 Kc3 Nb7 Rc8 Bg6 Qc4 Bc6 Bf7 Bd5 Qc5+ Ka4 Kb2 Bd3 Qd6 Qc4 Qb6 Qfc5 Qd6 Qf2 Qa3+ Kb5 Qb4+ Ka6 Bg8 Ne8 Ne2 Nc5 c1Q Qe4 Qe7 Nef6 Qcc3 Nb7 Bfe6 Bb5 Qf8 Qc4 Re7 Bc2 Bf5 Be8 Qa3 Kb5 Bf7 Bd7 Qd6 Ka4 Nc1 Bb5 Qg7 Ba6 Qdb4+
b2N2Br/1P4nr/k3p1Q1/4br2/PPq2qRn/B2qP2b/QNN3p1/4B1K1 w - - 0 1 illegal: No proof kernel
R2KN2b/3nr1Q1/p2PBP2/R2n1qRQ/bN1q1N1b/P2Pk1pr/3q1r2/8 w - - 0 1 legal: proof: e4 c5 g4 d5 exd5 h5 b4 hxg4 bxc5 f5 Bb2 f4 Bf6 Nc6 Bh4 Nb8 Bg3 fxg3 Ke2 Kf7 Kd3 Kg6 Kc4 Kf5 Kb5 Kf4 h4 e5 c4 g5 d6 g2 c6 b6 c5 g3 c7 e4 c6 g4 h5 e3 h6 e2 h7 e1B Nc3 Nd7 Rh5 Ngf6 Rg5 Nd5 Bc4 Bg7 Nge2+ Kf3 Bb3 g1Q Bc4 Bb7 c8N g2 c7 Bc6+ Ka6 Re8 h8Q Ba4 Kb7 b5 Nf4+ Re2 Qf8 Bh8 Qg7 b4 Bb3 a6 Bc4 N5f6 Be6 b3 Ncd5 b2 Nb4 b1Q d3 Qf8 Na7 Re8 c8R Qb2 Kc7 Re7 Nb5 Qd2 Ra8 Qf7 Kd8 Nd5 Nc7 Qf5 Qc1 Re3 Qc5 Re2 Ne8 Re3 Nh3 Ke2 f4 Bh4 Qb5 g3 Qa5 Rf3 Qc5 Qd4 Qa5 Qg6 f5 g1R f6 Rh1 Nf4+ Ke3 Qc5 Nc3 Qf5 Nd5 Qg4 Qf5 Qh5 Qg4 a3 Qh3 Rc1 Qf5 Rc5 Rh3 Ra5 Rf2
1K5b/1p5b/NP1rbnBB/3b1q1r/Q1R1P1rQ/4bp2/Q1N1kPPn/2B5 w - - 0 2 legal: proof: b4 d5 a4 a5 h4 g5 hxg5 e5 c4 Ra6 d4 Ra8 Ra3 Ra6 Rb3 Ra8 cxd5 exd4 b5 Nc6 Rb2 Nb8 Rb4 axb4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g6 Ke4 a5 f5 a6 c5 d6 h5 e3 b3 g7 f4 b6 d3 Kb5 d2 d7 b2 a7 f3 Rh3 c4 Ka5 c3 Bb5 c2 Bf1 h4 Qe1 d1B Kb5 Nc6 Na3 b1B Ne2 Kd3 Qb4 Nf6 g8Q Ne5 Qa2 Bg7 Kc5 Neg4 Kd6 Rg8 Nb5 Qf8+ Kc7 Bh8 d8B Be6 Ned4+ Be2 Be7 Rd8 a8Q Nh2 Q8a4 Rg4 Bd6 Bd5 Bf4 Rd6 Bh6 Qf7+ Kb8 Qh5 Qa7 Qf5 Nc7 Be6 Rg3 h3 Q7a4 Bd5 Na6 Be6 Ba3 c1B Nc2 Bd5 Qe4+ Kd2 Qe7 Bec4 Bd3 Kd1 Be4 Ke2 Qh7 Bd2 Bc1 Be6 Qe7 Bcd5 Qd8 Nf1 Qe7 h2 Rh3 h1R Rh4 Rh3 Qd8 Nh2 Qe7 Qh5 Bg6 Qf5 Qd8 Rgg3 Re4 Rg4 Rc4 Rh5 Qe7 Bg8 Qd8 Bh7 e4 Be3 Qb2 Ba2 Qb1 Ne8 Qh4 Nf6 Qa1 Bb3 Q1a2 Be6 Rd4 Bbd5 Rb4 Bc5 Rc4 Be3
B3k3/1b1np2b/rP1rPP1q/PQR1RK2/rR1br1Q1/B1p5/n7/1r1N1Q2 w - - 0 1 illegal: No proof kernel
1RKbBqQb/B3b3/b3ppRb/r2Rr3/4Pn2/3r2PQ/k1n1P1NP/2B5 w - - 0 1 illegal: No proof kernel
1r3q1Q/BBP1p3/3Qb3/1p1Rr3/1Pk2bNQ/P1N2K1b/b2Bn1nP/1r2n3 w - - 0 1 legal: proof: d4 f5 e4 h5 exf5 c5 b4 cxd4 g4 a5 gxh5 a4 a3 Rh6 Ra2 Rh7 Rb2 Rh8 Rb3 axb3 Ke2 Kf7 c4 d5 f4 b5 f6 Ke6 f7 g5 c5 d3+ Kf2 g4 c6 g3+ Kg2 b2 h6 d4 f5+ Kd5 c7 d2 h7 d3 f6 Bh6 f8B Na6 f7 Kc4 Nf3 Be6 Qe1 d1R Rg1 Rb8 Be3 Nc5 Qf2 Bf4 Bc1 Nh6 Bg7 Ng4 Qe1 Qf8 Nc3 b1B Bd2 Ba2 Bd4 Rb1 B4e3 Rg8 h8Q Rg5 Qd1 Re5 Qh4 Na4 Ba7 Nb2 Ng5 Ne3+ Kf3 g2 Nge4 Bh3 Nf2 Be6 Rh1 Bh3 Ng4 g1N+ Kf2 Ne2 Kf3 Ng2 Rg1 Qe8 f8Q Qc8 Qfh8 Qf8 Bc1 d2 Rh1 Ne3 Bg2 Nd3 Re1 Ng3 Bh1 Ng2 Re2 Rc5 Re5 Ne2 Rf5 Re5 Rg5 Re6 Rd5 Re5 Qf1 d1B Bd2 Ba4 Qff2 Bc2 Qb6 Nde1+ Kf2 Bf5 Qd6 Ne3 Bf3 N3g2 Be4 Nc2 Kf3 Bc8 Rd3 Bf5 Bb7 Be6 Rd5 Nce1+
1bKR4/p1QQ1P1b/Pq2R2b/3nR3/Pp4N1/1N1B1rkP/7n/1bn2rNr w - - 0 1 illegal: No proof kernel
1b1RN1R1/1rp1nP2/1R1P1Pb1/1np2N2/knQB1NK1/2P1n3/1rb4q/2Q3r1 w - - 0 1 legal: proof: e4 b5 a4 g5 h4 f5 exf5 gxh4 axb5 Bh6 Bc4 Bg7 Bd5 Bf8 Bc6 dxc6 Ke2 Kd7 Kf3 h5 b4 e5 d4 a5 g4 a4 f6 h3 d5 a3 f7 h2 c3 a2 b6 h4 b7 h3 b5 e4+ Kg3 e3 f4 e2 b6 e1N f5 Qh4+ Kf4 Bc5 d6 Na6 b8R Ra7 b7 Nb4 Nd2 Ne7 Rb1 a1N Nb3 Nac2 Nd4 Na3 Nge2 Nb5 Rg1 h1B Be3 h2 Qc1 Be4 Bf2 Qh7 g5 h1R g6 Ng2+ Kg4 Bc2 g7 Qh2 g8N Bb6 Nf4 c5 Ra8 Rh6 b8Q Rb7 Rb3 Ba7 Rb1 Re6 Rb3 Re2 Nf6+ Kd8 Ne8 Kd7 f6 Bg6 Nh3 Rb2 Nf5 Kc6 Bd4 Be6 Qc8 Bb8 Nf4 Bd5 Qe6 Be4 Qc4 Bc2 Re1 Rg1 Rf1 Ba7 Rd8 Bb8 Rf3 Kb6 Rh3 Ka5 Rh8 Ka4 Rg8 Na7 Qe2 Na6 Rb5 Nb4 Rb6 Nb5 Qc4 Ne3+
rB3b2/qP1R1K2/bbrN2P1/2pQ1B1k/1RB1r2n/2P3Pn/b1p1R3/1Q5n w - - 0 1 legal: proof: h4 d5 f4 b5 a4 g5 hxg5 e5 axb5 exf4 c3 d4 Na3 d3 Nc2 dxc2 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 Kf7 b4 Kg6 d4 f3 e4 f2 d5 a4 b6 a3 b5 f4 d6 a2 d7 f3 Ke6 h4 b7 h3 b6 h2 e5 Nc6 b8Q Nd4+ Kd5 Ne6 g3 Kh5 g6 Ng5 e6 Ba6 e7 Nh3 Ke6 Nh6 e8B Nf5 Rb1 a1B Qd5 Bb2 Bc4 f1B Kf7 f2 Bf4 Bc1 Rb4 Be3 Nf3 c6 Nh4 Qc7 Rg1 h1N Rg2 Qa7 Bc7 Bd3 d8R f1R Re2 Rf4 Bd7 Re4 Qb7 Rg8 Bb8 Bg1 Be6 Bgc5 Rd7 Bd4 Nf3 Bf2 Ng5 Nh4 Bf5 Rh8 Qc8 Bd4 b7 Bb6 Qc7 c5 Qf4 Rg8 Qf1 Rh8 Qb1 Rg8 Be5 Rc8 Bb8 Rc6 Ne6 Rh8 Nc7 Rg8 Nb5 Rh8 Bb3 Bc4 Nd6 Rg8 Ba4 Ba2 Bb3 Bg7 Bc4 Rd8 Bc7 Ra8 Bb8 Bf8
1Bbn1NQ1/Pr1P2nb/1pQKNP1q/1N2r3/BkrR2B1/1Pp5/4n3/6br w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 b3 gxh4 Nc3 a5 Rb1 a4 Rb2 a3 Rh2 axb2 a4 Bh6 Rh1 Bf8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 b1B d4+ Kb4 g4 c5 f4 h5 d6 b6 d5 c4 f6 h3 f7 h2 a5 e6 d7 h4 a6 h3 g5 Bc5 f8N Rh7 d6 Qc7 d8Q Ne7 f5 Qc6 Nb5 c3 Ne2 Bg1 g6 Rh4 g7 Rc4 g8B Ra7 d7 Rb7 a7 Bc2 Kf6 e5+ Be6 e4 Ke5 e3 Nf4 e2 Qd5 e1R+ Be3 Bd3 f6 Bh7 Bg4 Nf5 Qg2 Ng7 N4e6 Qc7+ Kd5 Nc6 Bf4 Re2 Bg3 Qf4 Qe8 Re5+ Kd6 Nd8 Qc6 Qh6 Bg2 Be3 Rd1 h1N Rd4 h2 Qf7 Bf2 Qg8 Bg1 Bf1 Rg5 Ke7 Rh5 Bb8 Re5 Nc7 Ng3 Kd6 h1R Bd3 Ka5 Bf1 Rcc5 Bb5 Ne2 Ba4 Rc4 Nb5 Kb4
3K2Bb/N3nq2/3b1pNn/2rP2b1/2PR3P/B3B1pk/Q2QrPbq/1N4b1 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 h5 gxh5 dxe4 Ra3 Nc6 Rb3 Qd5 axb5 Qd6 b6 Qd8 b5 Nb8 Rb4 cxb4 Ke2 Kd7 Ke3 Ke6 Kf4 g5+ Kg4 a5 c4 b3 h4 b2 d4 a4 b7 a3 h6 e3 h7 a2 b6 a1B Rh2 e2 Be3 e1B Qc1 Ra5 Qd1 Qe8 Qd3 Nh6+ Kh5 g4+ Bg5 Bb4 Rh1 Bd6 Bh3 Bh2 Na3 b1Q Ne2 Bg1 Nc3 Nc6 b8B Bb7 Bd6 Rc5 Qd2 Kf5 Be3 e5 Ncb5 e4 Na7 Ne7 Qa2 Qf1 Nb1 Qg2 Qd2 Bd5 b7 Qh2 b8Q Qd7 Bg2 g3 Qa8 Rg8 h8N Qc7 Bg5 e3 Ng6 e2 Be3 e1B Bf3 Be4 d5 Bh8 Bg4+ Kf6 Be6 Bg2 Qd8 Qb7 Q8a5 Rg7 Qda2 Bc3 Qb4 Be5 Qbd2 Bf4 Bf5 Bg5 Be6 Rb5 Ba3 Rc5 Bd7 Rh7 Be8 Kf5 Bd7+ Ke4 Be6 f6 Bf7 Kf3 Bg8 Nc6 Nf4 Bd6 Kg6 Nf7 Kf5 Nh6+ Ke6 Kg4 Ng6 Rf7 Qac2 Ne7 Qa2 Qa6 Kd7 Qb7+ Kd8 Kh3 Nc3 Nef5 Nb1 Re7 Qa1 Re4 Qaa2 Qf7 Qd4 Rg4 Bd2 Re4 Qc3 Re2 Be3 Ne7 Qcc2 Kg4 Qd3 Qh3 Qc3 Bh2 Rd1 Bg1 Qa5 Qh1 Rd4+ Kh3 Q5d2 Qh2
2rN1R2/pb2Pr1q/Np1nRQ1b/2P4P/2k2nKq/n1nNB3/P3Q3/n1Q5 w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Na3 h4 Nb1 h3 Bg2 hxg2 e4 Ke7 Ke2 Ke6 h4 g5 f4 d5 c4 b6 h5 d4 c6 g3 Kf3 d3 c5 d2 c7 Ne7 Na3 Bh6 Rb1 Nf5 Nb5 Nd7 Kg4 Bb7 c8N Rh7 Ne2 g1N Ne7 g2 Nc6 Nf3 Re1 g1N Rb3 N3d4 Rf3 Nd6 f5+ Kf7 f6 Ke6 f7 Rc8 f8Q Rf7 Qc2 d1N Be3 Nh3 Nc1 Nc3 Nd3 Nb3 Qc1 Nf4 Qg7 Qh8 Rf2 Na1 Nd8+ Ke7 e6 Qh7 Nc7 Ne5+ Kg3 g4 Na6 Nec4 e5 Na3 Qf6+ Kf8 Kh4 g3 Kg4 g2 e7+ Kg8 e6 g1Q+ Kh4 Qgg7 e8Q+ Qf8 Qb5 Qe7 Kg4 Kf8 Qf5 Qf6 e7+ Kg7 Qbb2 Qd4 Qe4 Kf6 Qf3 Qde4 Qfe2 Qh1 Ndb4 Ke5 Nd3+ Kd5 Rf3 Ng6 Rf6 Kc4 Re6 Rg7 Rf1 Qh2 Rf8 Rf7 Qf3 Qh1 Qf6 Nf4 Qe2 Qh4+
2Nb2bq/Q3Nn1Q/1pb3BK/3P2Q1/6Np/3q1R1P/Pkb1qBnP/2r1r3 w - - 0 1 illegal: No proof kernel
q4Q1b/3PnQpB/N2P2PK/nR1n1Q2/3q3k/r2b1BNq/Ppr1qB2/8 w - - 0 1 illegal: Other
Rb3q2/B2BNkn1/P7/1P2q2p/Q2Q1bK1/2r1pP1P/1Nnr3q/1b2QBb1 w - - 0 1 illegal: No possible last move, all moves rejected
n2b2q1/n1kN1p2/2qrbq1R/Kr2QP1N/Q2pPrN1/3P2R1/1P3r2/2R1B3 w - - 0 2 legal: proof: h4 c5 f4 g5 e3 gxh4 Be2 b5 Bf3 e5 a3 b4 axb4 e4 bxc5 exf3 c6 Qf6 Rh3 Qe7 Rh1 Qd8 g4 d5 c4 a5 f5 h5 c7 Kd7 g5 f2+ Ke2 f1R Kd3 d4 c5 h3 Kc4 h4 Kb5 a4 d3 a3 g6 h2 g7 h3 Qa4 a2 Qd1 Qf6 Bd2 Ra6 Be1 Rf4 Na3 Ne7 g8R Rd6 Nc2 Na6 Rg3 Nc6 Ne2 Na7+ Ka5 Be7 Rc1 Bd8 e4 a1R+ Na3 Rf2 Nf4 Rh4 Nh5 Rhf4 Qb3 Kc6 Qa4+ Kb7 Nc4 Be6 Ne5 Ra2 Rhg1 h1Q Ng4 Qg2 Rh1 Ra3 Rh2 Rb3 Rh1 Rbb6 c8N Kc7 c6 Rb8 Nb6 h2 Nd7 Rb7 Rf1 h1Q Rg1 Qhh4 Rh1 Qhg5 Rhh3 Qg8 Rh1 Nb4 Rh4 Nd5 Rh2 Nb6 Rh4 Kc8 c7 Qf1 Rhh3 Qe2 Rh4 Qc2 Rh1 Rb8 Rh4 Kb7 c8Q+ Ka8 Qc5 Kb7 Qe5 Qc6 Ng7 Kc7 Rh6 Na8 Nh5 Rb5+
8/1bN1p1P1/6nQ/rn2PRN1/nrPkq2B/bQ1q1qNR/1pnK1P2/7R w - - 0 1 legal: proof: e4 a5 d4 f5 h4 g5 hxg5 Kf7 b4 Ke8 e5 axb4 Bd3 c5 Be4 fxe4 dxc5 Bh6 Nd2 Bg7 Nb1 Bf8 a4 Kf7 g4 Ke6 a5 b5 g6 h5 c6 d5 a6 b3 c3 h4 g7 e3 g5 b4 g6 d4 a7 Kd5 c7 d3 c4+ Kd4 Ra3 b2 Ra5 d2+ Ke2 h3 Qb3 d1N Ra1 h2 Bd2 Bb7 c8N Na6 Ra4 Nh6 g8R Nc3+ Ke1 e2 Bf4 Nf7 Bc1 Nb5 Bf4 Qd5 Bg3 Qf3 Ra1 Nc5 Bh4 Bh6 g7 Bc1 Ra3 Na4 Nd2 b1Q Nf1 Qbe4 Rf8 Rh6 Nd6 Nh8 Rf7 Ng6 Nh3 Bb2 Kd2 e1N Rf4 Nc2 Rf5 Rhh8 Ng3 Rhb8 Ra2 Ba3 Ng5 Qc6 Ne8 Qce4 Rb1 h1Q Nc7 Qh3 Rh1 Qf1 Ra1 Rf8 Rh3 Rfb8 Qa2 b3 Rc1 b2 Qb3 Rc8 Rb1 Rab8 a8Q Rg8 Qa6 Ra8 Qc6 Ra5 Rd1 Rga8 Rb1 R8a6 Rc1 Rb6 Qe6 Na7 Qf6 Rb4 Qc6 Nb5 Qe6 Nf8 Qh6 Ng6 Rb1 Q1g2 Rg1 Qf1 Rgh1 Q1d3+
2bb4/PnrN4/PQ1p1R2/rp5k/1BqP1b2/2NrQ3/Q4nP1/2Kr1BNq w - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 c5 exf5 g5 a4 Nc6 h4 gxh4 Ra3 Nb8 Rb3 Qc7 Rb5 Qd8 Rb4 cxb4 c4 Kf7 f4 e5 d4 h5 Kd2 b5 a6 b3 a7 h3 f6 Kg6 f7 h2 a5 e4 c5 e3+ Ke1 h4 Qf3 b2 Kd1 d6 Qe2 h3 Qd2 e2+ Kc2 e1B f5+ Kh5 f6 Bh6 f8Q Qc7 f7 Nf6 Qd3 Bf4 Nf3 Nbd7 Be3 Bh4 Qd8 Ng4 f8N Rh7 Bd2 Nf2 Nc3 b1R Ng1 Rb3 Qe3 Qc6 Qb6 Bd8 Be1 Qd5 Bd2 Qc4 Kc1 Rg7 Be1 Rb2 Bd2 Rg3 Be1 Rd2 c6 Nc5 c7 Nb7 a6 Rb8 Ne2 Rf3 Rg1 h1Q Nd7 h2 Nc5 Bg4 c8Q Rh3 Qcc7 Rc8 Nd7 Be6 Qcc6 Rc7 Qce4 Bg4 Qb1 Rg3 Qa2 Rh3 Nf8 Bc8 Nd7 Rf3 Qe4 Rfd3 Qe6 Nh3 Qe3 Nf2 Qf3+ Ng4 Qaa5 Re3 Qa2 Rb2 Qe4 Bfg5 Qe6 Rb3 Kd1 Ra3 Nb1 Ra5 Bb4 Rc3 Qe7 Rc2 Nbc3 Rd2+ Kc1 Bh6 Kb1 Be3 Nc1 Bg5 Bd3 Bh6 Re1 Qf1 Re6 Bf4 Rf6 Nf2 Qe1 Qg1 N1e2 Qf1 Kc1 Qg1 Bc2 Qf1 Bd1 Rd3+ Qed2 h1R Qe3 Qg1 Qa3 Qh2 Qa2 Re1 Ng1+ Re2 Ba4 Red2 Bd1+ Kh4 Bh5 Qh1 Be2 Kg5 Bf1 Kg4 Ne2 Kh5 Ng1 Rd1+
2Qr3B/2B2q1n/1P1q2q1/1b1p1pk1/1R4Bq/1b1P3Q/2P1NPn1/3rQbKN w - - 1 2 legal: proof: e4 b5 b4 c5 h4 d5 a4 g5 e5 gxh4 Ra2 Bh6 Rb2 Bf8 axb5 Bg7 b6 Bh6 b5 Bf4 Rb4 cxb4 Qe2 Be3 Qg4 Bc5 Qd1 Bd6 exd6 Qd7 Na3 Qc7 Nb1 Qd8 g4 h5 d3 a5 g5 f5 g6 e5 g7 Kf7 d7 Kg6 b7 b3 b6 a4 Bh3 b2 Kf1 e4 Bh6 e3 Ne2 a3 Rh2 a2 Bf4 a1Q Ng3 e2+ Kg1 e1Q+ Bf1 h3 Be3 h4 Nc3 b1B Nh1 Nh6 Qc1 Qa7 Ng3 Ba2 Qa1 Ng4 Nd1 Bb3 Rh1 h2+ Kg2 h3+ Kf3 Qe7 d8Q Nd7 b8B Ba6 Bbf4 Nf8 Qd7 Nh7 Qc8 Qd6 Be2 Rd8 Bd4 Bb5 Nc3 Qg1 Qe1 Ne3 g8Q+ Qg7 Qh8 Qf7 Bd1 Ng2 Nce2 Ra1 Bfe5 Kg5 Bb2 Qdf6 Bc7 Qd6 Bg7 Qf1 Rg1 h1Q Bd4 Qh2 Nh1 Qdg6 Bb2 Qhd6 Be5 h2 Bb2 Nf6 Qh3 Nh7 Bh8 Rc1 Nf4 Qe2+ Kg3 Qe4 Bg4 Qee7 Kf3 Qef6 Ke2 Rd1 Kf1 Qd4 Ne2 Qc4 Bf3 Qh4 Bg4 Nf4 Rg3 Ng2 Re3 Qfd7 Re4 Qdf7 Nhg3 h1B Rb4 Nf4 Kg1 Bg2 Nh1 Bf1 Qc3 Ng2 Qd2+ Qf4 Qe1 Qfd6
2r4b/3N1qnq/1pNk1BP1/R1pb2P1/1P5Q/Rb2Q1n1/1Kr2Prb/Q1R5 w - - 0 1 legal: proof: e4 a5 c4 f5 h4 g5 hxg5 a4 b4 d5 cxd5 fxe4 Bc4 Qd7 Bb3 axb3 Qf3 Qd6 Qd1 Qd8 a4 Kd7 d4 e5 Kd2 h5 Kc3 c5 g4 b2 a5 b6 d6 h4 d5 e3 a6 e2 a7 e1R Nd2 b1Q Ra4 h3 Ba3 e4 Qc1 h2 Ndf3 e3 Ra6 e2 Qf4 Qf6+ Qd4 Nh6 Ra5 Na6 Bb2 Qf7 Qe3 Qbh7 g6 Nc7 Nd4 Ne8 Ngf3 Ng7 Nc6 Nhf5 g5 Rb1 Rc1 h1B Kc2 e1B Bf6 Ra1 Kb2 Ng3 Ra3 Rb8 a8R Ba6 Ra5 Rc8 Ra3 Bc4 R8a5 Bb3 Nfe5+ Ke8 Nd7+ Be4 Qd4 Bd2 Qd3 Bf4 Qe3 Be7 Ndb8 Bd8 d7+ Kf8 d6 Bed5 Be5 Bf6 d8Q+ Ne8 Qc7 Ng7 Qa7 Ke8 Nd7 Ra2+ Kb1 Rc2 Qa6 Bd8 Bf6+ Be5 Qa8 Bc7 Qa7 Qhg8 Qa6 Rh2 Qc4 Rg2 Qh4 Rc3 Kb2 Qh7 Ndb8 Kf8 d7 Bd4 Kb1 Rc2 d8Q+ Qe8 Qd7 Qf7 Qdg4 Bde5 Qgd4 Bcd6 Qa1 Ke8 Na6 Kd7 Nab8+ Ke6 Nd7 Bb8 Qed4 Kd6 Qe3 Ne8 Bd8 Bh8 Bf6 Ng7 Qad4 Nh1 Nce5 Ke6 Nc6+ Be5 Qa1 Kd6 Nd8 Bh2 Nc6 Rc4 Kb2 Ng3 Ra7 Rc3 R7a5 Rc2+
B1R2r2/1q4Qb/1bK1b2R/1p1P1Pp1/1rP5/b1Q1q1q1/1N1NQ1P1/n1Rn2k1 w - - 0 1 illegal: No proof kernel
5r1B/1Rr5/2p3P1/pR2n3/1n1KP3/1bPbqQ1Q/1PQ1BqN1/kqb3bR w - - 0 1 illegal: No possible last move, all moves rejected
2R2n2/pkPbq3/6r1/1BR5/P1PQ1nnK/NbN3Pp/qN1Rn2Q/r3b3 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 h4 gxh4 bxc5 Bh6 Qd2 Bg7 Qd1 Bf8 e4 f6 e6 Nh6 e5 Ng8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 e8Q h5 f4 b5 Kf2 b4 a4 b3 c4 e4 f5 b2 f6 h3 Kg3 h4+ Kg4 h2 e7 e3 f7 e2 Nd2 b1Q Qb3 e1N Qg3 Kb7 Ra2 Nd3 Ne2 Nf4 Nc3 d5+ Qd7+ Qc7 e8N d4 Nf6 d3 Nd1 Nh6+ Kg5 Qa1 Qd4 Qe7 Nb1 d2 Nb2 d1B Na3 Bd7 Rg1 h1N Qh2 h3 Kh4 Ng3 Bd3 Rh7 Bg6 Nge2 g3 Bb3 Rd1 Bg7 f8R Ng4+ Bh5 Bh8 Rc8 Rg7 Be8 Rg6 Rd2 Qb1 Ra1 Qa2 Rf1 Bg7 Rf3 Bh6 Re3 Bg7 Re5 Bf8 Rg5 Bg7 Ne4 Bf6 Qdf2 Bc3 Qd4 Bb4 Rc2 Be1 Rd2 Bf5 Bb5 Nd7 Nc3 Nf8 Rd1 Rb8 c6+ Ka8 c7 Kb7 Re8 Rd8 Rd2 Rdd6 Rc8 Bd7 Qf6 Rd4 Rc5 Rd3 Rc2 Rd1 Rd2 Qd6 Qe5 Ra1 Qd4 Qe7+
4RK2/2BQqPPk/4NQ1p/2bnPr2/1R1rN2r/pNQbqn1n/7P/5n2 w - - 0 1 illegal: No possible last move, all moves rejected
2N4Q/1B5r/3ppbBn/kBK1b3/2brQRnQ/1P5P/1nqPPR2/2q2n2 w - - 1 2 legal: proof: f4 b5 g4 h5 a4 c5 f5 g6 axb5 c4 b3 c3 Bb2 cxb2 Na3 Bb7 Nc4 Ba6 Ne3 Bb7 fxg6 Ba6 g5 Bc8 Ng4 hxg4 Kf2 b1N Ke3 a5 Kd4 f5 c4 a4 c5 g3 g7 f4 b6 g2 c6 a3 g6 e6 h3 f3 c7 f2 b7 a2 Rh2 Bd6 Qc2 Rh7 Qe4 Na3 Nf3 g1Q Nh4 Nc4 Bg2 Nh6 g8B Nb2 g7 Qc1 Ng6 f1N Ne7 Bg3 Rb1 a1B Bh1 Ra5 Rf2 Rf5 Qh4 Rf4+ Be4 Rg4 Rf4 Qc2 Bc6 Qc1 Bb5 Nc6+ Ke4 Ne5 Kd4 Qc2 b8Q Ba6 c8B Qdc7 Qb7 Kd8 Bf7 Q7c6 Qa8 Kc7 g8Q Kb6 Bb7 Ka5 Bg6 Qc1 Nc8 Q6c2 Qh8 Bh2 Bf3 Bg3 Qe4 Bh2 Bc6 Bc4 Kc5 Bg3 Bg2 Bh2 Rf2 Rf4 Bb5 Neg4 Qf5 Rd4 Bb7 Be5 Qe4 Qc3 Rf4 Q1c2 Re1 Qc1 Rf2 Q3c2 Rd1 Ng3 Rg1 Nf1 Rf4 Bf6 Rg2 Nd1 Rf5 Rd6 B7c6 Bae5 Bb7 Nb2 Rgf2 Rd4 R5f4 d6+
qb4b1/4K1RP/p2q4/Q1Bk1P1P/1q4n1/R4n2/P1N1p1r1/rBn1qQQB w - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 gxh5 f5 Nc3 e3 Ne4 fxe4 Ke2 Kd7 f4 Ke6 d4 g5 h4 b5 c4 g4 c6 a6 c7 g3 c5 g2 c6 b4 f5+ Kd5 h6 e5 Nf3 g1Q Ne1 b3 Rh3 b2 Nc2 b1Q Ba3 Qg3 Bc5 Be6 c8Q Nd7 c7 Bd6 h7 Nh6 h5 Rg8 Bg2 Ng4 Qg1 Rb8 Bh1 Qb4 Rd1 Rb6 Rd3 Rg5 Ra3 Bg8 Qb7+ Rc6 c8B Bb8 Qb5 Qf4 Rg3 Rd6 Bb6+ Nc5 Bb7+ Rc6 Qd3 Nb3 Bc5 Rg7 Qdd1 Qh6 Qdf1 Qhd6 Bc8 Rg6 Bd7 Rc8 Bb5 Qe8 Bd3 Qec6 Na1 Qa8 Bb1 Rc7 Nc2 Rgg7 Bb6 Rc4 Bc5 Nc1+ Kd1 Rc3 Rg2 e2+ Kd2 e1N Rg3 Nh6 Rg4 Rc4+ Ke3 Nf3 Rg5 Re7 Rg7 Re8 Kf2 e3+ Kg3 e2 Kh3 Ng4 Kg3 Ke4 d5 Re6 Kh3 Rg6 Kg3 e1Q+ Kh3 Qe6 d6 Kd5 d7 e4 d8Q+ Qd6 Qb6 e3 Qa5 Ne5 Qff2 Rg2 Qff1 Rf2 Kg3 e2 Kh3 Rd4 Kg3 Rd1 Kh3 Nc4 Kg4 Ne3+ Kh3 Ke5 Kg3 Ng4 Kh3 Nd2 Kh4 Ncb3 Kg5 Rc1 Qc7 Rg2 Qa5 Qd7 Kg6 Kd5 Kg5 Nf3+ Kg6 Nge5+ Kf6 Qdc6+ Ke7 Ng4 Nd4 Qcb6 Bd3 Ra1 Bb1 Nc1 Nc2 Qd6+
1rq4K/1nR1pN2/pr2r1P1/1Q1R4/2rP2b1/2n1q3/1b1kP1NP/QQN3Bn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Kd7 b4 Kd6 d3 Ke5 d6 Kd4 g6 f5 d7 c5 b6 g3+ Kf3 g2 b5 c4 b7 a6 b6 c3 Bb2 Nc6 b8N Nf6 b7 Bg7 Qc1 Ne4 Nh3 g1Q Nd2 Rh4 Ba3 c2 Bc5+ Kc3 Qb1 c1R Nb3 Re1 Nc1 Kd2 Ra5 Bb2 Ba7 Nc3 Rd5 Qe8 Qa1 Nd8 Nc6 Rb8 Ne5 Qh8 Nf7 Qe3+ Kg2 f3+ Kg3 Rb4 Nf4 Rc4 Ng2 f4+ Kg4 f2 Kg5 f1N Bb6 Qg8 Kh6 Ng3 Ba7 Qf8+ Kh7 f3 Qb1 f2 Bd4 Ne6 d8Q f1R Qa5 Rf6 Qaa1 Nd8 Rg1 Qe8 Bc5 Qc6 Kh8 Bg4 Rf1 Re6 Rff5 Rc8 b8Q Nh1 Qb5 Rb8 Rd7 Rb6 Rfd5 Qc8 Rc7 Rb8 Ba7 Rf1 Bb6 Rff6 Bd4 Reb6 Bc5 Rfe6 Bd4 Qf3 Bg1 Qe3 d4 Nb7+
N3r2Q/2QR1b1K/pr1pr3/RPnPN3/b2r1R1q/k3Pb2/2B2Pnb/2N5 w - - 0 1 illegal: No proof kernel
5b1N/Q1NbBr1q/B5P1/P3b3/2pP2r1/2P1K1Q1/n1kpRn1r/rN1b3B w - - 0 1 illegal: No proof kernel
b1Qrk2r/Bp1nN2P/1P4n1/1r1pRQ2/bN1bQ2R/6NP/2bqP1K1/r7 w - - 0 1 illegal: Other
q1nr4/2bPbn2/Q1PR1Q1p/3N1p2/3Pb3/r3b1Bn/1K2NPn1/B1QB1k2 w - - 0 1 legal: proof: e4 b5 h4 c5 b4 d5 exd5 g5 a4 gxh4 Ra2 Bd7 Rb2 Qb6 axb5 Qc7 b6 Bc8 b5 Qd8 Rb4 cxb4 c4 Kd7 g4 Kd6 c5+ Ke5 g5 Kd4 g6 a5 b7 e5 d6 f5 d3 a4 Kd2 h6 Kc2 e4 g7 h3 d7 h2 b6 a3 Qg4 b3+ Kd2 a2 Qh4 a1B Qe7 b2 Kc2 e3 Nh3 e2 Ng5 e1B Na3 b1N Qf7 Be7 Nh3 Nc6 b8B Bd2 b7 Be3 Qa2 Nc3 Be2 Ne5 Nc4 Ne4 Rd1 h1N Nb6 Ng5 Nd5 Nef7 Nhf4 Ng3 Qa6 Nh3 c6 Nf1 Bd2 Bc3 Kb1 Ba5 Kb2 Bb6 Bd6 Bc7 b8Q Bb7 Qc8 Qf8 Qa1 Ra3 Qc1 Ba6 Qb7 Bc4 Qa6 Qa8 B2b4 Ba2 Rd2 Bb1 Bd1 Bg5 Ba5 Ne7 g8Q Nc8 Qg6 Be7 Qg5 Rd8 Qh4 Nh2 Qg5 Nf3 Qf6+ N7e5 Bab4 Ne1 Ba5 Ng2 Bab4 Ba5 Bb8 Bc7 Bc3+ Kc5 Ne2 Nf7 Qb7 Ba5 Bg3 Bc7 d4+ Kc4 Rd3 Bg5 Re3 Bd3 Re4 Be3 Re6 Be4 Rd6 Kd3 Kb1 Ra6 Ba1 Ra7 Kb2 Ra3 Qc4+ Kd2 Qba6 Ke1 Qc1 Kf1
QBR3b1/pn3q1p/3P2B1/Qb3N1b/3P1Q1n/1nb1K2k/Pr3n1P/2rN1N2 w - - 1 2 legal: proof: e4 c5 f4 d5 exd5 g5 b4 gxf4 bxc5 e5 Na3 e4 Rb1 Be7 Rb3 Bf8 Rf3 exf3 Kf2 Ke7 g4 Kf6 d4 Kg5 c4 Kh4 c6 b5 c7 f5 g5 b4 g6 b3 g7 b2 c5 b1N c6 Be6 c8Q Nd2 c7 Ne4+ Ke1 f2+ Ke2 f3+ Kd3 f4 Nc2 Qd7 Be3 Nh6 g8Q Bb4 d6 Nf5 Qg7 Nc6 Bd2 Qf7 Bc3 Nd8 Ne3 Rb8 Qe1 Nb7 Nd1 Ba5 Bd2 Bc3 Qgf8 Rg8 Ne2 Rg1 Ng3 Bd5 Bg2 f1N Qce8 f2 c8N f3 Ne7 Kg4 Qh6 Nh4 Nef5 Bb3 Bg5 Nfd2 Bd8 f1B+ Ke3 f2 Bc7 Bb5 Nf1 B3c4 Bf3+ Kh3 Qf4 Nb3 Bh5 Be2 Bg6 Bh5 Nd2 f1B Qd8 Bfe2 Nf1 Bec4 Qg8 Bb2 Qa5 Bc3 Qc8 Nf2 Qe8 Rc8 Bb8 Rg2 Qee4 Qd7 Qc6 Bg8 Qd5 Qf7 Rg1 Nd8 Qa8 Nb7 Rh1 Ne4 Rg1 Rb2 Rg2 Rc7 Rc2 Nf2 Qh6 Bb4 Qf4 Rc5 Rd2 Rc1 Rc2 Be1 Rc8 Bc3
1n3K2/1Pr1bQR1/bpbNPR1B/b2QNn1p/Q3N2P/1Pq2n1k/1q3q2/8 w - - 0 1 legal: proof: c4 e5 a4 d5 cxd5 Qd7 f4 exf4 a5 Qd8 e4 g5 a6 b6 Be2 g4 Bf3 gxf3 Ra4 Nd7 Ra1 Rb8 Kf1 Rb7 axb7 a5 Ke1 Nb8 Kf2 Ke7 g4 Kf6 d4 Kg5 b3 Kh4 d6 c5 d5 f5 d7 h5 h3 c4 e5 c3 e6 c2 g5 a4 d6 a3 g6 a2 g7 Nh6 g8N Be7 Nf6 Rh7 Qd4 Qc7 d8Q Qc3 Bd2 c1B Qa4 Bd7 Ne4 Bc6 Qf8 Bd8 Na3 Rc7 d7 Bb2 Re1 a1Q Nc4 Ba3 Rc1 Qab2 Qf7 Bb4 Ncd6 Ba5 Re1 Qbc2 Rf1 Q2b2 Ke1 f2+ Ke2 Qc5 Kd3 f3 Rh2 f4 Rg2 Nf5 Rg7 Qce5 Kc4 Qf6 Re1 f1N Bc1 Nh2 Rf1 f2 Be3 f3 Bh6 Bb5+ Kd5 Qfc3 Qe8 Bg5 d8Q Be7 Qdd7 Bd8 Qef7 Ba6 Ne2 Bb5 Nd4 Ba6 Nc6 Bb5 Rc1 f1Q Ne5 f2 Rc2 Qfe1 Rd2 f1B Rf2 Ba6 Rf3 Qef2 Qdc6 Nd4 Rf6 Bg2 Ne8 Qfe3 Kd6 Qc4 Nc3 Qef2 Qcd7 Bd5 Ne4 Nhf3 Qdb5 Bc6 Qd5 Rc8 Rg8 Qcc3 Rg7 Bc7+ Ke7 Bd8+ Kf8 Nf5 N8d6 Rc7 Ng5+ Kg3 h4 Kg2 Nge4+ Kh2 Nc8 Kh3 Ncd6 Be7+
1qR2Qb1/1p1p3P/6QN/r2k1N1B/3P3r/qP3q1q/1qNQKP2/n3Rnq1 w - - 0 1 illegal: No proof kernel forced: wxLB
n4k2/NQ1q4/b3P2r/R1qp4/1P1PrBrp/N3B1Q1/3P3p/1bbnQB1K w - - 0 1 illegal: No proof kernel
1r3Bq1/Pq3P1p/2rKBrk1/Rb1p2b1/2p1P1b1/1NPn4/3nQ1Q1/3N1Q1B w - - 0 1 legal: proof: b4 e5 a4 a5 e4 axb4 h4 g5 hxg5 f5 Ra3 f4 d4 Bc5 dxe5 Bf8 Re3 fxe3 Ke2 Kf7 Kf3 d5 Kf4 c5 g4 b5 a5 b3 g6+ Kg7 e6 b4 Ke5 e2 f4 e1R a6 c4 c3 b2 e7 b3 e8Q Ne7 a7 Rg8 g5 Na6 f5 Qa5 Nd2 b1B Bg2 b2 Kd6 Nb4 Nh3 Bc2 Nb3 b1Q Ba3 Rb8 Nf2 Nd3 Qe2 Rf1 Nd1 Qd8+ Qd7 Rf4 Rh6 Ba6 Bh1 Bb5 Qf1 Qe8 Qc8 Qb2 Qc5 Qf7 Qe3 Rh8 Qee2 Qg8 Bb4 Nc6+ Kd7 Be7 f6+ Kf8 g7+ Kf7 Rg6 Bd8 Bf8 Nce5+ Kd6 Nf3 Rh6 Rc8 Rh2 Kg6 Rg2 Qf7 g8B Nd2 Rf2 Qg7 Be6 Qg8 f7 Rf6 Be7 Kg7 g6 Kh6 g7 Kg6 Rh2 Rc6+ Kd7 Qf8 Nd4 Rf4 Qe3 Bba4 Qef2 Nb3 Bc5 Kg5 Ne3 Bd1 g8Q+ Kf6 Qgg1 Bg4 Nd1 Kg6 Qe3 Qb1 Ra2 Bg5 Qgg2 Nd2 Qee2 Rf6 Ra3 Qbb8 Nb3 Bb5 Ra5 Qg7 Ke7 Qa8 Kd7 Rb8 Bf8 Qg8 Ke7 Rc7+ Kd6 Qb7 Nc5 Rcc8 Nb3 Rc6+
3B3q/2Qp1b1p/KB1P3R/2N1nPr1/4Qb1P/b1pn4/2P2NQq/k1N1n2r w - - 2 3 legal: proof: e4 a5 a4 f5 b4 g5 b5 g4 Be2 b6 exf5 Nc6 f4 Nb8 Bf3 gxf3 Ra3 Bh6 Rb3 Bg7 Rb4 axb4 a5 Bh6 axb6 Bf8 g4 Kf7 h4 Kf6 d4 c5 Kd2 e5 Kd3 b3 Kc4 e4 b7 e3 d5 b2 b6 e2 Kb5 e1B Qd3 c4 Rh2 f2 Nc3 f1Q Nd1 b1N Qe4 Nc6 b8B Nh6 b7 Bd2 Rg2 Ra1 Ne2 Ba3 d6 Nf7 Ka6 Qg1 Bc7 Nce5 Nf2 Qh2 Bb6 Rg8 Bb2 Rg6 Nc1 Rg5 B2d4 Qh8 Bd8+ Kg7 Be3 Nd3 Beb6 Nfe5 f6+ Kf7 f5 Bf4 Rg1 Nd2 Rg3 Ndf3 Rg1 Kf8 f7 Kg7 f8N Nfe1 Ne6+ Kf7 Nc5 Kg7 Ka5 Rb1 b8Q Bb7 Qc7 Bd5 Ka6 Bf7 Ne2 Rh5 g5 Rc1 g6 Rg5 Qc8 Ra1 Nc1 Rb1 Bdc7 Kf6 g7 Rg2 g8Q N1f3 Qeb7 Ng4 Qca8 Ke5 Qg6 Kd4 Bd8 Kc3 Qc7 Kb2 Na2 c3 Qe4 Nge5 Qg3 Re1 Nc1 Ka1 Qg8 Rg7 Rg6 Rh1 Rh6 Rgg1 Qg3 Nfe1 Qh3 Rg4 Qhg2 Rg5
5b1b/2p1Rrp1/P2R1Pqn/2PK4/4pQbB/rqrQ4/2QnP1kB/N2B4 w - - 0 2 illegal: Other
rR2bK2/P1qN1QQ1/1B1Bp2r/1kp3bq/4p3/q1PnPn1P/N2N2B1/3r4 w - - 1 2 legal: proof: f4 a5 g4 d5 b4 g5 fxg5 h5 gxh5 Rh7 a4 axb4 Ra3 Rh6 Re3 Rh8 Re4 dxe4 Kf2 Kd7 Kg3 Kc6 Kf4 b5 Ke5 f5 d4 b3 d5+ Kb6 e3 b2 c3 e6 h6 b4 g6 b3 d6 c6 d7 f4 g7 f3 h3 f2 a5+ Kc5 a6 Nf6 g8N Be7 h7 Nd5 a7 Nf4 Ne2 Bg5 Nf6 Kb5 Kd6 Qc7+ Ke7 Nd3 Nd2 b1R Ba3 b2 Bd6 c5 Bg2 f1Q Nc1 Qf3 Qf1 Qh5 Na2 Rd1 Qf2 b1Q Rf1 Rg8 h8Q Qb3 Qg7 Rh8 Rg1 Rh6 Kf8 Qb2 d8B Qa3 Nd7 Nc6 Qff7 Nd4 Rf1 Ba6 Rf5 Nf3 Rd5 Rb1 Rd4 Rd1 Rb4+ Ka5 Rb8 Bb5 Nf6 Be8 Nd7 Qb6 B8c7 Kb5 Bd8 Qb7 Bb6 Qc7
K1B3nr/1p2P2p/1bP4Q/k2n1NB1/PR3prP/q1R4b/r1Q2qR1/2Qq4 w - - 0 1 legal: proof: d4 a5 f4 g5 b4 gxf4 Nc3 e5 dxe5 c6 Nd5 c5 bxc5 Nc6 Nb4 axb4 Qd3 Nb8 Qd2 Qb6 Qd1 Qd8 Kf2 f5 a4 d5 c4 Kd7 h4 Kc6 e4 f3 Ke3 f2 Kd4 b3 g4 b2 e6 b1R e7 Na6 e8Q+ Kc7 e5 Qf6 g5 Qf7 g6 Qd7 c6 Kb6 c5+ Ka5 c7 Bg7 Ra3 Ra7 Bg5 f4 Qc1 Qd6 Qf8 Qc6 Rc3 Qf6 Nf3 Ne7 Bh3 f1Q c6 Bd7 c8Q Nc7 Kc5 d4 e6 d3 Nd4 d2 Nf5 Ng8 e7 d1Q Rh2 Qfe1 Rb2 Nd5 Rb4 Ra1 Bg4 Qf7 Bh3 Bf6 Qh6 Ra2 g7 Ra8 Qe8 Qfe6 Qeg6 Q6e3+ Kd6 Bd4 Bg4 Ngf6 g8R Q1f2 Rg7 Ng8 Bh3 Nb6 Kc7 Rf8 Bg4 Rf7 Kb8 Nd5 Ka8 Bb6 Qe6 Rf6 Qe4 Rg6 Qec2 Be6 Bh3 Bd7 Bf6 Rg1 Rg2 Qed3 Bg5 Be6 Rcc4 Qa3 Rc3 Bc8 Rh2 Rg4 Rg2 Be6 Ne3 Rg3 Bg4 Bf7 Bd7 Be6 Bc8 Bh3 Nf5 Rg4
2r3nR/qb6/1k1b2pb/1P2B2R/2n2p1P/q1NQr1Pq/3Pp1B1/1QR1K2Q w - - 0 1 illegal: No proof kernel
1QN2N2/1B2nkP1/1pQq4/BnRp1bp1/P1B3qb/3P1n2/rr4Pq/K1N5 w - - 0 2 illegal: No possible last move, all moves rejected
1rR5/1b1P1npR/4NpnN/1KpRq2P/P1qb4/1Q1q3N/2Pr4/2krQB2 w - - 0 1 illegal: No possible last move, all moves rejected
QB4q1/2Pnpn2/1k2N1P1/1ppB2b1/q3r1Rb/1N1r1K2/1P1N2PB/qb3Q2 w - - 0 1 illegal: No proof kernel
4kq2/p1P1bRPp/r1R3N1/Q1N1p3/2Kn1bB1/qrQ2P1P/2n2r2/N2b3Q w - - 0 1 legal: proof: e4 c5 a4 g5 d4 b5 axb5 f5 dxc5 fxe4 f3 g4 Be3 g3 Bf2 gxf2+ Ke2 Na6 Kd2 Nb8 Kc3 d5 b4 e5 g4 d4+ Kc4 e3 c6 e2 g5 e1B g6 d3 g7 d2 c7 Na6 b6 Bd6 b7 Qg5 b8Q Qe3 b5 Ba3 b6 Kf7 b7 Nh6 Ne2 Bf8 Nf4 Ke7 Na3 Nb4 Rb1 Rg8 Ng6+ Kf7 Bh3 f1R Bg4 Rf2 h3 Bd7 c8Q Be7 Qbc7 Rd8 b8N Nf5 Qa5 Nd4 Na6 Ke8 Nc5 Ba4 c3 Rb8 Nc2 Rb7 Na1 Nbc2 Rb5 Rb8 Rb7 Qf4 Qc1 d1Q Rc7 Rb3 Rh2 Bf6 Rf7 Bd2 Rg2 Be3 Qcc7 Qd2 Qh1 Qc1 Rg1 Qa3 Rc1 Rd7 Nb7 Rd6 Kd3 Rb1 Rd7 Ra6 Qc6 Bb3 c4 Nb4+ Kc3 Qa4 c5 Bg5 Qcc7 Rbb2 c6 Qf8 Rf7 Qa3 Rc2 Na2+ Kd3 Bef4 Rc4 Bd8 Qc3 Bh4 Q7a5 Bd1 c7 Be7 Rc6 Nb4+ Kc4 Nbc2 Nc5 Rb3
2Q3Q1/qqQp1p2/1rnpnPr1/1KRb4/RP5b/6BN/P1BP1q2/2kb1R2 w - - 1 2 illegal: No possible last move, all moves rejected
NN2R3/6r1/2r2k1r/1Q2r1pK/q1rpBb1Q/Q1P1p1P1/BP2P2n/n4b1N w - - 1 2 illegal: No extended proof kernel
4N1b1/bp3rN1/1P4r1/1QN2QP1/2QP1n1p/1rrpP1k1/4B3/1R1nRqrK w - - 0 1 illegal: No possible last move, all moves rejected
7Q/3N1RQ1/1p1P1K2/1PR1r1bp/r1N2k1q/pPQ1b3/1nPN4/bbn1b2B w - - 0 1 illegal: No possible last move, all moves rejected
NQ1b4/P1n2P1b/p3B2B/b2Rq3/P1rB1PQ1/kr2Nn2/1b2pp2/1b2NK2 w - - 0 1 illegal: No possible last move, all moves rejected
2b2r1k/3B1rbp/RN1Q2pP/PnK5/Q1qB1Pp1/2PB1b2/1N1nQ3/1n4n1 w - - 0 1 legal: proof: d4 a5 g4 c5 dxc5 e5 b4 f5 bxa5 fxg4 a4 Na6 Ra3 Nb8 Rd3 Be7 Rd6 Bf8 Rd4 exd4 Kd2 Kf7 Kd3 b5 e4 d5 h4 g6 f4 Kg7 e5 b4 c3 b3 a6 b2 h5 Nc6 h6+ Kf7 a7 Nge7 e6+ Kg8 Ne2 Qc7 Be3 Bg7 Na3 b1N Nc1 Nf5 e7 Nh4 Nc4 Nf3 Nb6 Ng1 e8B Rb8 a8Q Na7 c6 Nb5 Qe2 Rb7 Qb8 Qf7 c7 Qe6 a5 Qc6 Bd7 Qc4+ Kc2 Ra7 Nd3 Rb7 Nb2 d3+ Kc1 d2+ Kc2 d1N Bd4 Nf2 Rh3 Bf8 Re3 Bg7 Re6 Ne4 Rc6 Ned2 Rd6 Qb4 Kd3 Qc4+ Ke3 Kf7 Rc6 Rf8 Re6 Kg8 Rc6 Ra7 Rd6 Ba6 c8Q Kh8 Qc6 Bc8 Rf6 Rb7 Qbd6 Ra7 Be6 Raf7 Bd7 N5a3 Qa4 Nb5 Be5 Nb3 Re6 d4+ Ke4 d3+ Bd4 d2 Rf6 Qd3+ Kd5 d1B Re6 N3d2 Kc5 N5a3 Qh2 Qe4 Bd3 Bf3 Qe2 Nb5 Re8 Ba6 Ra8 Bc8 Ra7 Qe6 Ra6 Qc4+
5nbQ/r1R1Nq2/3p4/4Q1NN/n1r3p1/B2BpbPr/PrBP1P2/2Kbk3 w - - 0 2 legal: proof: e4 a5 h4 f5 exf5 g5 b4 axb4 Nc3 c5 Qg4 Bh6 Qd1 g4 Nb1 Be3 Na3 Bg5 Rb1 c4 Rb3 cxb3 hxg5 Ra5 Nc4 Ra4 Na3 Ra8 c4 Kf7 g6+ Kf6 g7 Ke5 f6 Kd4 g3 e5 f7 b5 f8N h5 c5 d6 c6 b2 c7 b1B Rh3 b3 Be2 b2 Rh4 b4 Nc4 e4 Nb6 e3 Bc4 b3 Nh7 Bc2 Nd5 b1R Ng5 b2 Nc3 Qe8 Nh7 Nd7 Be6 Kd3 Qf3 Nf8 Rh1 h4 Qf4 h3 Ng5 h2 Nd5 Ra7 Ne7 Rh3 Ne2 Nf6 g8B N6d7 Bb3 Nb6 Bh7+ Qg6 Ba4 Be6 Qf6 Bcb3 Nf4+ Kc2 Nh5 Bg8 Rf1 h1B Ke2 Ra1 Re1 b1R Ba3 Be4 Rd1 Qf7 Ke1 Rb2 Rc1+ Kd3 Bg6 Rc2 Kd1 Rb1 Qg7 Rbb2 Qh8 Qe6 c8Q Qf7 Qf5 Rcc7+ Rc2 Rc5 Kc1 Ke2 Qff6 Ke1 Qe5 Bf3 Bd3 Rc6 Rc3 Bbd1 Bac2 Na4 Rc5 Rca6 Rc8 Rc6 Rc7 Rc4
b5Kn/B2n2Q1/n2Nbb2/Q2R1Pp1/4P2R/Nr2RpPr/1p1n1P2/N2q2k1 w - - 1 2 illegal: No proof kernel
3b1KQ1/N1n2N2/bb1p1rpB/4q1nR/B3p1Pr/QPr1P3/3B1Pk1/Q5b1 w - - 1 2 legal: proof: d4 f5 a4 b5 axb5 c5 e3 cxd4 Ra4 f4 Ra3 f3 h4 g6 h5 Qb6 h6 Kd8 Kd2 Qf6 Rd3 Qg7 hxg7 Ke8 Ke1 Kd8 Rd2 Ke8 Re2 fxe2 Kd2 Ba6 Rh4 Bb7 Rh1 Bc8 Kd3 Kf7 Ke4 Kf6 Kd5 Kf5 c4 Kg4 c5 h5 b3 e5 b6 a5 c6 d6 g3 d3 b7 a4 c7 e4 Nf3 e1B Be2 a3 Bf1 a2 Bb2 a1B Nbd2 h4 Nc4 d2 Rg1 h3 Qc1 d1R+ Nd4 h2 Rh1 Na6 b8B Nh6 g8Q Rd3 Qc3 Bb7+ Ke6 Nf7 c8Q Be7 Qc5 Bd8 Nb5 Kf3 g4 Rh4 Bc7 Ng5+ Kd7 Rb8 Ba5 Nc7 Na7 Ba6 Qa3 Rb5 Be2+ Kg2 Ne5 Rc5 Qc1 Rdc3 Nf7 Rf5 Bb5 Rf6 Ba4 Bd2 Rd1 Be1 Rd5 h1Q Qd1 Qh2 Bb4 Nge6 Rh5 Ng5 Ba5 Qe5 Qb1 Nce6 Ke8 Nc7+ Kf8 Rc4 Bb6 Ba5 Bc3 Bb2 Bbd4 Bb6 Bd2 Rc2 Bc5 Bd4 Qba1 Rc3 Bb4 Qb5 Bc5 Be5 Bd4 Bh2 Be5 Bg1 Bf4 Nf3 Bg5 Qe5 Bh6 Ng5
Bq2n2R/1r1b1nB1/1pbQ3N/1PP1PN2/QpK2Q1r/7N/P1nbkp2/3b4 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 Bc5 b5 Kf8 Nd2 Ke8 Rb1 Bf8 Rb4 axb4 h4 Ke7 c4 Ke6 e4 d5 Ke2 g5 Kd3 f5 c5 g4 h6 f4 h5 f3 h7 g3 h6 f2 Ndf3 b6 Bf4 g2 Bg5 Nf6 Rh4 Ne8 Bc1 Nd7 Be3 Ra7 Bc1 Rb7 Nh3 g1N Ba3 Ne2 Bg2 Qc7 Qc1 Qb8 Qf4 Be7 Bb2 Bg5 Qh2 Bd2 Qf4 Rg8 h8Q Rg4 Rh5 Rh4 h7 Ng3 Qhf8 Nf5 h8N Ne3 Nf7 Nc2 Ke2 d3+ Kd1 d4 Rh8 Be3 Nh6 d2 Ke2 d1B+ Kd3 Bd2 Kc4 d3 Ba1 Ndf6 Bc3 Nh7 Bh1 Ng5 Nd4+ Kd7 Ba1 Nf7 Ndf5 Ke6 Bd4 Bd7 Bc3 Bg4 Bg2 Bc6 Ba1 Kd7 e6+ Kd8 e7+ Kd7 Bg7 Ke6 e5 Qa8 Bf1 Qb8 Kb3 Kd5 Bg2+ Bf3 Bh1 Bd7 Bg2 Be1 Bh1 d2 Bg2 d1B Bh1 Nc7 e8Q Bd2 Qee7 Ne8 Qd8 Qd6 Qa8 Qb8 Qa4 Be4 Nd6 Kd4 Ndf5+ Kd3 Qd6+ Ke2 Kc4 Bf3 Bg2 Bg4 Be4 Bf3 Bc6 Ra7 Bb7 Bfc6 Ba8 Rb7
2B1N1kr/3r1p1b/RnN3r1/pb4P1/P1Qp1Kb1/r3BN2/2P2PB1/1n2q1Q1 w - - 1 2 legal: proof: h4 e5 a4 c5 b4 g5 bxc5 g4 d4 exd4 Ra3 Bg7 Rah3 gxh3 g4 Qe7 g5 Bf8 g6 Bh6 Bf4 Qd8 Bc1 Bg5 hxg5 Kf8 Be3 Ke7 Bc1 Ke8 Kd2 Kf8 e4 b5 e5 a5 c6 h5 e6 d5 c7 h4 Qg4 b4 Bb2 h2 Qh5 h3 Na3 b3 Qe2 d3 Ke3 d2 Qd3 d1R Nb1 Ra6 Bd4 b2 Kf3 Nd7 Ne2 Ngf6 g7+ Kg8 e7 Nb6 e8B Bg4+ Kf4 Qe7 c8Q Ne4 Qdc4 Nc3 Nd2 b1R Nf3 Ra1 Bg2 Ra3 Be3 Nb1 Bd7+ Qe8 Re1 h1B Ned4 h2 Nc6 Rdd3 Qc7 Qe7 Re2 Qb4 Qe5 Qe1 Bc8 Rd1 Qa1 Rdd3 Bf1 Bg2 Rd2 h1B Re2 B2h3 Bg2 Rd1 Rd2 Bf5 Rd4 Bh7 Re4 Bg4 Re7 Ra8 Ra7 Rd2 Ra6 Ra7 Qf6 Rd7 Qh6 d4 Qh2 Re2 Qg1 Bd3 Bc1 Re6 Bd2 Rg6 Be3 Kh7 g8N Kg7 Qc3 Bb5 Nf6 Kf8 Ne8 Kg8 Bh3 Bg2 Qc4 Bf1 Bg2 Bd3 Bh1 Re6 Bg2 Bh7 Nh4 Rh6 Nf3 Rg6
4Nr2/K1bp3p/PnQ2p1q/Rn3B1P/1P3P2/Qb3Q1r/1B1r1N1k/1B1bb3 w - - 0 2 legal: proof: b4 b5 a4 g5 f4 e5 d4 g4 Ra3 a5 Rf3 gxf3 dxe5 axb4 c3 b3 Ba3 b4 cxb4 Bh6 Bc1 Bf8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 e4+ Kg4 h4 Kg3 e6 c6 h5 f2 a5 f6 e5 b2 a6 Ne7 Kc5 Rg8 Bd3 f1R Na3 b1B Nh3 Rf3 Bf5 Rc3+ Nc4 Nd5+ e7 Nb6 e6 Ba2 Bb2 Bb7 Nf2 Bb3 Bb1 Rd3 Nd6 Rd2 e8Q Rg4 e7 Rh4 Re1 Kh2 g4 Rh3 g5 Qc8 Qf7 Qe8 Qg7 Qg6 e8B Qh6 g6 Be7 Qg8 Bd8 g7 Bc7 Qf3 Bd1 Qgd5 Bb3 g8Q Bd1 Qdd3 Bb3 Kd4 c5+ Ke3 c4 Kd4 c3 Kc5 c2 Re5 c1B Bg6 Nc6 Ne8 Nd4 Qe6 Bd1 Qec6 Nb5 Qa3 Rc8 Bgf5 Rb8 Qe6 Bd5 Qc6 B5b3 Qc3 Re2 Bbd3 Nc4 Ng7 Bd2 Bb1 Nd4 Q3f3 Rf8 Ne8 Be1 Rd5 Rd2 Re5 Bb8 Rd5 Na5 Kb6 Nc4+ Kb7 Nb6 Ra5 Bc7 Ka7 Nb5+
bq4n1/3p1krR/1br2P2/3R3p/P1QN1n2/PQnp2r1/4QrNP/1R3B1K w - - 0 1 legal: proof: f4 c5 e4 a5 d4 cxd4 f5 g5 b3 a4 bxa4 f6 e5 Kf7 exf6 Ke8 Bf4 gxf4 Kf2 h5 g4 b5 Kg2 e5 c4 e4 c5 d3 a3 e3 c6 b4 g5 e2 g6 e1R c7 b3 g7 b2 Nh3 f3+ Kg1 Nc6 Nd2 b1N Nf4 Ne5 Nb3 Re3 Ng2 Rh7 Nd4 Ra6 Qe2 Nc3 Re1 Bb7 c8Q Ng6 Qc4 Rc6 f7+ Ke7 Rb1 Ba8 Rb5 Nf4 Rd5 Qb8 Qb3 Kf6 Qc4 Bc5 f8R+ Ke7 Rf6 Bb6 Rh6 Kf7 f6 Ng6 Nf4 f2+ Kg2 Rh8 Rh7 Rh3 Rg1 Rf3 Kh1 Rg3 Ng2 Nf4 Qb2 Nh6 Qcb3 Rf8 Q2c2 Ng8 Qe2 Re8 Qc4 Re7 Qb3 Nh6 Nf3 Qf8 g8Q+ Ke8 Qg4 Nh3 Qgc4 Nf4 Nd4 Qg8 Qe4 Kf8 Be2 f1R Bg4 Rf2 Be2 Reg7 Rb1 Kf7 Bf1 Qb8 Qe2 Ng8
8/PqK1RB2/rnQpQ1r1/2pRRNPp/4nQ1b/2PP4/2r3rb/3Nkb2 w - - 0 2 legal: proof: e4 f5 exf5 a5 h4 g6 b4 g5 hxg5 axb4 a4 Bh6 Bb2 Bf8 Ba3 bxa3 Ke2 Kf7 Ke3 b5 Ke4 h5 Kd5 e5 g4 c5 f4 e4 g6+ Kf6 a5 d6 a6 e3 g7 a2 a7 e2 Nf3 e1B Bc4 b4 d3 b3 Nh4 b2 Nc3 b1R Qf3 Rc1 Nd1 Rh6 c3 Nd7 Kc6 Rg6 Bf7 Bg3 Re1 Nb6 Re5 Be7 Qd5 Qf8 Kc7 Bh2 Qc6 Rc2 Rb1 a1R Rb2 Nh6 g8Q Ra6 Rb4 Be6 Rbe4 Bd5 Re3 Bg2 Rd5 Bf1 Ree5 Qg7 Qc8 Qf8 Q8d7 Ng8 Qe6+ Kg7 f6+ Kh6 f5 Kg5 Be8 Kf4 f7 Kg3 f6 Rd8 Nf5+ Kf3 Bd7 Qe8 f8Q Ra8 f7 Bh4 Qh6 Nf6 f8R Ne4 Rf7 Ke2 Qf4 Ke1 Re7 Qh8 Be8 Rd8 Bf7 Rdg8 Qa8 R8g7 Qb7 Qa8 Qc6 Rf6 Nfe3 Rgg6 g5 Rf5 Qg4 Rff2 Qf4 Rg2 Nf5 Qb7+
6r1/B7/1qp1P3/r1Pp2BQ/pQ3Pnn/1rb1b1r1/3Pb1BN/RN1k2KN w - - 0 2 legal: proof: f4 e5 a4 h5 g4 b5 gxh5 e4 axb5 Ba3 Nh3 Bb4 Ng1 Bf8 b4 f5 Ra3 Bd6 Rf3 Bf8 e3 Bd6 Qe2 exf3 e4 Be7 e5 Bf8 Qe4 fxe4 Kf2 Ke7 c4 Ke6 h4 Kf5 b6 Kg4 b5 g5 b7 a5 h6 d5 h7 c6 b6 e3+ Ke1 f2+ Ke2 a4 c5 Ne7 h5 Ra5 e6 Nd7 b8B Nf5 b7 Ne5 h6 Rg8 h8Q Nh4 h7 Bg7 Rh2 Qb6 Bg2 f1R Nh3 Rf3 Ke1 e2 Ba7 Rb3 Kf2 e1B+ Kg1 Nd3 b8Q Nf2 Bb2 Bc3 Rh1 Ba6 Qhe5 Bd3 h8N Be2 Nf7 Kg3 Nh6 g4 Bf1 Kf3 Qh5 Bd3 Bg2+ Ke2 Ba1 Kd1 Bb2 Be2 Qb7 g3 Ng4 Bb4 Bf6 Bc3 Bg5 Qd8 Qb4 Qb6 Be4 g2 Kh2 g1R Bg2 Nd3 Nhf2+ Kc2 Bf3 Rg3 Bg2 Kc1 Rf1 Kc2 Nh1 Bf2 Re1 Be3 Rf1 Nf2 Kg1 Bg7 Nh2 Bgd4 Nc3 Bf6 Ra1 Bg7 Nb1 Kd1 Qf3 Bc3 Qh5 Ng4+
r7/1Bq2R2/b1RPn1N1/PkbpBr2/3PQ1RB/2rp2r1/1q2PQ1p/3K1n2 w - - 0 1 illegal: No proof kernel
r4k2/2rpNp2/Rpq4b/1PBKB2q/2n2P2/P2PRRBQ/1qQ5/n3b2q w - - 2 3 legal: proof: g4 h5 gxh5 e5 c4 e4 c5 e3 d3 b6 Nd2 Bb7 Bh3 exd2+ Kf1 Nf6 c6 Ng8 cxb7 a5 b4 a4 Be6 Be7 Bd5 Bf8 Bb3 axb3 Kg2 g5 Kf3 c5 Ke4 g4 h4 b2 b5 b1Q h6 c4 h7 c3 h5 g3 h6 g2 Ba3 c2 Rh3 c1B Kd5 Qf6 e4 Qc3 e5 Qbb4 e6 Qcb2 Qc2 d1Q Ne2 g1Q Rf3 Na6 b8B Nc5 Nd4 Nb3 Nc6 Q4c3 Bc5 Bd2 Bg3 Qh1 Ne7 Qf6 a3 Qe2 Re1 Qd1 Re4 Na1 Ra4 Be1 Ra5 Qg6 Ra6 Nf6+ Kd6 Ne4+ Kd5 Rg8 h8B Qhh5+ Bhe5 Nd2 h7 Nc4 h8Q Bh6 Qh7 Qf6 Qf5 Rg5 Qh3 Qfg6 Re3 Kf8 f4 Qdc1 Rf3 Rf5 Bh2 Qg1 Bg3 Qh1 Nc6+ Kg8 e7 Rf6 e8R+ Kg7 Re7 Kf8 Na7 Rc6 Nc8 Rc7 Re6+ Kg8 Ne7+ Kf8 Qf2 Qcc3 Qc2 Qg6 Bh8 Qcf6 Re3 Qff5+ Be5 Qfh5 Ra7 Qf6 Ra6 Qc6+
n6N/p1n5/Pq2B2p/Q4N1r/PQP1RrbP/5Qp1/2r1rN1b/K4kBq w - - 0 2 legal: proof: d4 e5 b4 exd4 g4 c5 a4 f5 gxf5 Qa5 Ra3 c4 Rd3 cxd3 bxa5 Bc5 Nd2 Be7 Nb1 Bf8 Kd2 Kf7 e4 Kf6 h4 Ke5 c4 Kf4 f6 b5 f3 Kg3 a6 Kf2 e5 d5 f4 g5 f7 g4 f5 b4 f6 b3 e6 b2 e7 Nd7 e8Q Bd6 f8Q Ne7 f7 Bh2 Qd8 g3 Qc7 Nb6 Qc6 Bg4 Bg2 Re8 Qc5 Na8 Na3 b1Q Qa5 Qb6 Bf3 h6 Qb3 Kf1 Nc2 Rh7 Kd1 d2 Qbb4 Rg7 Ba3 Rg5 Bb2 Rh5 Ne3+ Kf2 Kc2 d1R Kb3 d3 Ka2 d2 Bd4 Rc1 Nf5+ Kf1 Bd1 Rc3 Ka1 Rc2 Bc5 d4 Nh3+ Bg1 Rh2 d3 Re2 Bh2 Bg1 Nd5 Re4 Ndc7 Nf2 Re5 Qa3 Re6 Qfb4 Rf6 f8N Rf7 Bf3 d1Q+ Qb1 d2 Ng6 Qe1 Nh8 d1R Q3b4 Rdd2 Qd1 Bh3 Bg4 Re2 Nd6 Rf4 Be6 Bg4 Nf5 Kg2 Qdb1 Qd1 Qc3 Qd5 Qbb4 Kf1 Qcb3 Qd3 Q3a3 Qf3 Qe3 Qg2 Qf3 Qh1
3Qq3/K1PQ2br/1N1p2p1/rR1p1nn1/nBP3k1/NqNP1b2/2P1Q2R/2n5 w - - 0 1 illegal: Other
2r4b/pqQ1BR2/1Q1p1PRN/b2N1NP1/1PRn1K1n/8/q1rPpbb1/5k2 w - - 0 1 illegal: No proof kernel
1bN2r2/1rb1pPRn/2q3B1/R1K1P1BR/1p1Q3Q/Q2b1P2/1P1p1qr1/3k2q1 w - - 0 1 legal: proof: d4 b5 g4 h5 a3 c5 Nd2 cxd4 Ndf3 Na6 Ng5 b4 a4 Nc7 N1h3 Nb5 axb5 Ba6 Ng1 Bc8 N5f3 f6 Ne5 f5 gxf5 Qb6 Ng4 hxg4 Qd2 Qa5 Qd1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 b6 g5 e3 a5 b7 d5+ Kb5 g3 b8Q a4 c4 d3 c5 g4 f6 d2 c6 d4 c7 a3 f7 g2 h5 a2 h6 g3 h7 d3 Rh3 Qe8+ Kb6 Bg7 Qa4 d1R Be2 Nf6 Rh5 Ba6 c8Q Ra7 Qh3 Rf8 h8R Rb7+ Kc5 Rd2 Qa7 Nh7 Rg8 Be5 Rg7 Bc7 Nf3 g1B Qa3 g2 Nd4 Bgh2 Nc6 g1Q Qh4+ Bhf4 Bf1 Kf3 e4 Qc8 Bh3 Ke2 Bf5 Kd1 Bg6 Qh2 f3 Rg2 Qb6 Qe6 Na7 Qc6+ Kd4 Bb8 Nc8 Bfc7 e5 Qg3 Qc5 Qf2+ Be3+ Ke2 Qd5 d2 Qde4 Bd3 Qef4 Qa6 Kc5 Qe6 Qd4 Qf6 Rc1 a1Q Bg5 Qb1 Rc3 Qbg1 Rc1 Qe6 Ra1 Qd7 Qb3 Qe6 Ra5 Qa6 Qa2 Kd1 Qa3 Qc6+
3Rn2r/2p2bkr/p1P1p1n1/nQ1qPPB1/Qn3n2/5N1Q/5PK1/2Bq1N1B w - - 0 1 legal: proof: b4 d5 a4 b5 c4 bxa4 g4 f5 gxf5 g5 h4 g4 c5 Bh6 Ra2 Ba6 Rc2 Bc8 Rc4 Bg5 hxg5 dxc4 e4 Kf8 d4 h5 c6 g3 d5 a3 g6 a6 b5 g2 e5 a2 b6 a1N d6 h4 b7 c3 d7 c2 Qd5 h3 Qb5 h2 Qa4 Nb3 Qf4 Nf6 Bb5 Rh7 Nd2 Kg7 Qa4 Ne8 Be2 Na5 Ngf3 g1N Kf1 Nh3 Kg2 e6 Rd1 h1Q+ Kg3 Qe1 Nf1 Nf4 Bd3 Qd2 Be4 Qd5 Rd3 Qf6 d8B Nd7 b8Q Nf8 Qb2 Bd7 Qbb5 Qe7 Rd4 Qed6 Bg5 Rd8 N3h2 Rb8 Bh1 Ra8 Nf3 Rd8 Bb2 c1N Rd3 Na2 Bc1 Nb4 Rd2 Kg8 g7 N8g6 Rd3 Kf7 Rd2 Nf6 Rd4 Rdh8 Rd3 Be8 g8Q+ Ke7 Qg7+ Bf7 Qh6 Qd8 Qh5 Kf8 Qh3 Kg7 Kh2 Ne8 Kg1 Nh5 Kg2 Q8d6 Re3 Qd1 Rd3 Qc5 Rd6 Qcd5 Rd8 Nhf4+
2nRbQ1N/2bN1p2/1pqr2P1/R1nnpK2/n2Q1P2/qB2P3/Q4P1k/1n2R3 w - - 0 1 illegal: No proof kernel
b2R1rN1/3q1qp1/B7/q3RNPK/2R4N/b1npr1QQ/1P1P1Pp1/kb5q w - - 0 1 illegal: No proof kernel forced: bxDB
2rk4/Q2p1pb1/1qB2pn1/N2P2B1/1b2KqQn/1bq2P2/b1QPN2P/4N2R w - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 a5 b4 axb4 a4 Ra7 Ra3 Ra6 Rf3 Rd6 Rf6 Rd5 cxd5 exf6 e4 g5 Ke2 c5 Ke3 c4 h6 b3 f3 c3 e5 b2 a5 g4 h7 c2 a6 g3 a7 g2 a8Q b4 e6 b3 Nh3 g1B+ Ke4 Nc6 Qa2 Nh6 Nc3 b1Q Nf4 b2 Ng2 Bg7 Ne2 Ne5 Qa7 Bc5 Ne1 Rg8 h8N Qb6 Ng6 Nf5 Ne7 Nh4 Nc6 Ba6 Na5 Kd8 e7+ Kc8 Ng3 Bb4 Bb5 Neg6 Bc6 Bc4 Ne2 Rd8 e8Q Bb3 Qg8 Rf8 Qh8 Kd8 Qh5 Qa2 Qf5 b1B Qg4 Qa4 Bb2 c1Q+ Qc2 B1a2 Bd4 Qa1 Be3 Qc3 Qc1 Ke7 Bg5 Rc8 Qc2 Kd8 Ba8 Qac6 Bb7 Qd6 Bc6 Qf4+
K3B1k1/Nn6/P5pP/3r1NPn/3b2Q1/p2pPbrR/n1qp1B1Q/4BbN1 w - - 0 1 illegal: No proof kernel
B2n2Q1/2P1RKB1/2bp1p1p/2n1b1pk/7B/1r1b1qrP/1PNQP1nN/5N2 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 g4 g6 g5 f6 gxf6 Kf7 Bg5 Ke6 f7 Kd5 Bc1 Kd6 f4 Kd5 f5 Bb7 f6 Bc8 Ra6 Bh6 f8B Bf4 f7 Bd6 Ra3 Ke5 Rf3 Ke6 Rf6+ exf6 Kd2 Kf5 Kd3 Kg4 Kc4 a5 Kd5 g5 c4 d3 c5 d2 h3+ Kh5 b6 h6 b7 a4 c6 a3 c7 a2 Bg2 a1N Nf3 Nc6 b8N Be5 Nh2 Bb7 Bg7 Ra3 f8Q Nb3 Na6 Qa8 Nb4 Nc5 Nc2 Rg3 Qe1 d1B Nd2 Ba6 Ndf1 Bd3 Qd2 d6 Rg1 Qa3 Be4 Nd8 Rg2 Re3 Rg4 Rg3 Bh1 Qc3 Re4 Qa3 Qa5 Qc3 Bd2 Qa3 Be1 Qc3 Nd4 Ba4 Nc2 Rg1 Nd4 Qc1 Ne6 Nf7 Qaa8 Bg3 Nd4 Qf4 Nc2 Ne7+ Kd4 Nf5+ Kd5 Nh4 Qa5 Rg2 Qfa8 Rb8 Re7 Rb3 Qg8 Nd8 Qd2 Qe3 Bf2 Be5 Be1 Rg4 Be4 Ng2 Bh4 Nc6 Bh7 Rg3 Be4 Nd7 Ke6 Qf3 Kf7 Nc5 Kf8 Nd8 Ba8 Ndb7 Kf7 Bd7 Qb8 Bc6 Qg8 Nd8+
Q3n3/r1pK3b/8/2Np1pB1/2PP2RR/1BpPQ1r1/2b2rQP/k1qRn2b w - - 1 2 illegal: No proof kernel
N1B5/rNp2nQ1/NB2rPrp/1PbnBQ2/P1Pqb1np/1R5K/7p/2k5 w - - 0 1 illegal: Other
1R1Qb2K/4Np1Q/Rqqb1nr1/p3P1p1/5rP1/3P1R2/1r1pnPkB/3N3N w - - 0 2 legal: proof: a4 d5 Na3 e5 Nb1 b5 axb5 d4 Na3 d3 cxd3 Nf6 Nb1 Ng8 Qa4 h5 Kd1 e4 Kc2 e3 Kc3 exd2 Qd1 Ne7 Kc2 Ng8 g3 h4 Bg2 h3 Kb3 hxg2 Kc3 Qh4 Kc2 Qd8 h4 Ke7 Kc3 Ke6 e4 Ke5 b4 c5 b6 g5 h5 c4 b7 a6 b5 Qe8 h6 Ne7 g4 Kf4 Kd4 c3 b6 c2 h7 Nd7 b8R Nc5 b7 Ng6 Ne2+ Kf3 Ng3+ Kf4 Rh3 g1R Nc3 Bd7 Ba3 c1Q Nh1 Rg8 h8Q Qb2 Qc1 Qb1 Nd1 Qb6 Qh7 Bd6 Qc3 Qc8 Qa5 Be8 Rg3 Qe6 Re3 Qc6 Qd8 Nd7 Bc5 Rg7 Bb6 Ra7 Bc7 Nf6 Rh3 Rg3 Ra4 Kf3 Ra3 Kg2 Ra2 Re3 Rf3 Be7 Bh2 Nf4 Ra1 Qb3 Ke5 Rg6 Kf5 Re2 e5 Re4 Qb6 Qd6 Rc8 N6h5 b8N Ne2 Qd8 Qbb6 Nc6 Rb4 Ra2 Rb2 Rb8 Qdc5 Ra4 Bd6 Ne7 Qbc6 Rab4 Rb7 Rb6 a5 Ra6 R7b4 Raa8 Rg8 Ra7 Q5b6 Ra6 Nhg3+ Kf6 Rf4+ Qf5 Rh8 Kg7 Rg8+ Kh7 Nh5 Qg6 Rg7+ Kh8 Nf6 Qh7 Rg6
3nK1Qb/p3p2N/R1R1q3/P2QPNBP/nb6/1pNPpb2/1q1r3Q/2kr4 w - - 0 2 legal: proof: c4 h5 b4 c5 bxc5 d5 cxd5 Bg4 Nh3 Bd7 Ng1 Bc8 e4 f5 g4 hxg4 e5 Kf7 Bg2 Ke8 Be4 fxe4 Ke2 Kd7 Ke3 g5 Kd4 b5 a4 b4 h4 g3 f4 g2 h5 b3 f5 g4 a5 g3 d6 Kc6 d7 Kb5 Kd5 Kb4 Ke6 Bb7 Kf7 Na6 f6 Bg7 c6 Qc8 d8Q Qe6+ Ke8 Nc5 f7 Nh6+ f8Q Nf7 c7 Na4 Nh3 g1Q c8N g2 Ng5 Qh2 Nh7 g1B Qg8 Bc5 Qd5 Nd8 Nc3 Bf6 Rb1 Rb8 Rb2 Ka3 Nd6 Bb4 Qe2 Qg2 Rf1 Rc8 Na2 Rc2 Nf5 Qf2 Rd1 Qd4 Rb1+ Qb2 Qh2 Ba8 Nc3 Bb7 Nf8 Rh6 Rg1 Bh8 Nh7 Rf6 d3 Rd2 Rg7 Rg6 Rf7 Rg1 Rf6 Rgd1 Rh6 Rc2 Be3 Rcd2 Bg5 e3 Rc1 Ba8 Qd7 Bf3 Qd5 Qc8 Ra6 Qe6 Nb5+ Ka2 Rcc6 Kb1 Nc3+ Kc1
K1br2r1/RpP4b/1R2P3/4Q1B1/1RBNBb2/1P1p2np/pqQ3P1/2qn3k w - - 0 1 illegal: No proof kernel
2R2R2/r2pBp1b/k1Kn1P1P/P1n1p2n/1r6/2QqP2p/Q4N1N/bn1Q3N w - - 1 2 illegal: Other
2k5/p2N3Q/2pn1p2/1r3RKb/3RNPb1/3rpPnb/bPP1RNBq/7Q w - - 1 2 illegal: No possible last move, all moves rejected
1R1B1R1R/N1n3N1/nK4q1/1b1pQ3/1QrP4/1Ppp1PQ1/qpP1nr2/q3k3 w - - 0 1 illegal: No proof kernel
bn4N1/p1Qn1bbP/2Q2p2/1n1R1PpB/4qP2/Qq4Pp/N2R1r1R/4k1K1 w - - 0 1 illegal: No proof kernel
1q2bB2/2R2p2/p1B1QPb1/1pq1P1R1/P3Q1n1/3p2KN/1Bqr1rP1/1R2bk2 w - - 0 1 illegal: No proof kernel
N1bQ2q1/p1Rb1P1Q/PB4PQ/1R3Bp1/1qr1n2r/1p4R1/4pbP1/1K3rk1 w - - 0 1 legal: proof: d4 e5 e4 exd4 b4 c5 bxc5 f6 e5 f5 h4 g5 h5 Nc6 Nd2 Nce7 Ne4 Ng6 hxg6 fxe4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 a4 b5 f4 d5 a5 h5 c6 b4 c7 d3+ Kb1 b3 c5 d2 a6 h4 c6 h3 e6 e3 e7 Ke4 e8Q+ Qe7 f5 h2 f6 d4 f7 d3 Nh3 Rh4 Qd8 Qb4 Nf4 Nf6 Qh5 d1Q Qh7 d2 Ra5 Qf3 Ne6 d1B Bc4 e2 Rf1 h1R Be3 Qh5 Rff5 Rf1 Rf3 Bd6 Bd4 Bg3 Bb6 Be1 Rg3 Qf3 Rc5 Ke3 Bd3 Kf2 Bf5 Kg1 Rb5+ Qe3 Qf8 Ne4 Qfh6 Bd7 c8R Bc2+ Ka1 Bd3 Rc7 Rc8 Kb2 Bc4 Kb1 Qec5 Rb7 Qe3 Nc7 Bce6 Na8 Qec5 c7 Qcd4 Rc5 Qh8 Rb8 Qg8 Rb7 Re8 c8Q Rf8 Qb8 Rc8 Rb5+ Rc5 Qbf8 Bc8 Qd8 Bed7 Re3 Rc3 Rc7 Rc4 Rg3+ Bf2+
2q5/Q1pr1N2/Pn1p1RKn/6p1/1q1P3Q/4q1bN/1rPRprP1/N1kBQ3 w - - 0 3 legal: proof: h4 a5 b4 axb4 a4 g5 h5 b6 Ba3 Bb7 e3 bxa3 e4 f5 exf5 Bd5 Bd3 Bf7 Bf1 Bg6 hxg6 Ra7 Qf3 Ra5 Qd1 Ra8 Ke2 h5 Kf3 e5 Ke4 Ke7 f4 Kf6 d4 a2 a5 b5 a6 b4 g7 b3 Nh3 h4 Qd2 b2 Rg1 Nh6 g8Q Bd6 Qc4 Qc8 Qe1 Rd8 Nd2 b1Q Be2 Qb4 Rd1 a1Q Nb3 Qc1 Na1 Rf8 Rf1 Qe3+ Kd5 e4 Rd2 Be5 Qc5 d6 Bd1 Nd7 Qa7 Rb8 Rf3 Qba3 Rf1 Rb2 Rff2 Qb4 Rf3 Kf7 f6 Kg6 Ke6 Nb6+ Ke7 Kf5 f7 Kg4 f5 Bg3 Kf6 Rd8 f8Q Rd7 Ng1 h3 Kg6 h2 f6 h1R f7 Rh4 Qh8 Rh1 Nh3 Rf1 f8N Rf2 Qa8 Qea3 Qa7 e3 Rf6+ e2 Ne6 Qe3 Ng1 Ng8 Nd8 Nh6 Re6 Kf4 Rf6+ Ke4 Nf7 Kd5 Nd8 Kc4 Nf7 Kc3 Qh7 Rb3 Nh3 Kb2 Qh8 Kc1 Qh7 Rb2 Qh8 Nf5 Qh4 Nh6
r7/1Qrk1p2/r3qPB1/1R1B1p1p/1B4nP/Nr5n/pRRbrPP1/Q2K4 w - - 0 2 legal: proof: d4 c5 a4 cxd4 e4 b5 axb5 Ba6 Nc3 Bb7 Nd5 g6 Ne3 Bd5 Nf5 Be6 Nh4 Bf5 exf5 Bh6 f6 Bf8 Nf5 gxf5 h4 a5 b4 d5 c4 e5 c5 e4 b6 d3 b7 d4 c6 e3 c7 d2+ Ke2 a4 c8B d3+ Kf3 e2 b5 e1R b6 a3 Be6 a2 Bb3 Nc6 b8Q Ra6 b7 Kd7 Ba3 Nge7 Rc1 Qb6 Bd5 Re2 Rc2 Ng6 Qa1 d1R Bb4 d2 Qa7 Nf4 b8R+ Qc7 Qa8 Qc8 Rb5 Nh3 Qb8 Bd6 Qb7+ Bc7 Rb2 Rc1 Rc2 d1R Rb2 Re6 Be2 Ne5+ Ke3 h6 Bh5 Rd3+ Ke2 Rb3 Bg6 h5 Nf3 Ng4+ Kd2 Rcc3 Kd1 Re2 Ne1 Qe8 Nc2 Qe6 Na3 Rha8 Qb8 Bh2 Qb7+ Rc7 Re1 Bf4 Rc2 Ree3 Ree2 Bh6 Red2 Re2 Rb2 Bf4 Rdc2 Bd2
3n4/Qnn2Brq/Q3p1n1/4n3/3KP2k/BRPpB1Np/bNPP2pQ/2b5 w - - 0 1 legal: proof: g4 f5 a4 fxg4 Nf3 c5 Ra2 c4 Ng1 c3 bxc3 a5 h4 g5 Bb2 b5 Ra1 g3 Bc1 g4 Ra3 Ra6 Rb3 Rg6 Rb4 Rg5 hxg5 axb4 e4 Kf7 Ke2 Kg6 Kd3 h5 f4 d5 a5 b3 a6 d4 a7 h4 a8Q Kh5 f5 h3 g6 b2 g7 b4 f6 g2 f7 b3 Qf3 Qc7 Qa7 Nc6 Qb7 Kh4 Qd1 g3 Qa6 Be6 Qa7 Rh7 Qa1 Nd8 Na3 b1N Qe1 b2 Nc4 Na3 Qe3 b1N Qb2 Nb5 Qa3 Nd6 Ne2 g1N Nb2 g2 Qa6 Ba2 Ng3 Na3 Be2 e6 Bh5 Be7 f8B Nab5 Bf7 N6b7 Qf2 Bb4 Bc5 Ne7 g8Q Ba3 Qf8 Ng6 Qfd6 Nf3 Qg1 Rh8 Qd7 Rh7 Qh2 Rg7 Re1 Bb1 Kc4 d3 Rd1 Qf4 Be3 Qh6 Qd4 Nc7 Qda7 Nfe5+ Kd4 Qh5 Rf1 Ba2 Rf5 Nc4 Rb5 Nce5 Rb3 Qh7 Nc4 Qh8 Qa4 Bb2 Q4a6 Ba1 Ba3 Bb2 Bf4 Qg8 Be3 Bc1 Nb2 Qh7
3Q4/Q5p1/1pNrn1p1/2b1K1QB/P1p2rPb/1q1p4/Rr1P1BPN/2kn2N1 w - - 1 2 illegal: No proof kernel
1r5n/p5pN/2r2rP1/p3BPbk/PQpPQbqB/5BR1/4K1Qp/1N5n w - - 1 2 illegal: No proof kernel
RQ2Q2q/3p1r2/1np2N2/pk1NpBpn/3q1rK1/3PP1R1/1PP1R3/Qb4b1 w - - 0 3 legal: proof: f4 g5 fxg5 b5 a4 h6 axb5 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Rh7 g6 Nf6 g7 Nd5 g5 Rh8 d3 Nf6 g6 Ng8 Bg5 hxg5 Kf2 e5 Kf3 f5 h4 a5 b6 f4 b7 c6 h5 Rh7 h6 Nf6 g8R Ke7 g7 Kd6 Nc3 Kc5 Bh3 Na6 b8Q Nh5 Kg4 f3 Rh2 f2 Nd5 f1Q Nf3 Nc7 Nd2 Qf2 Ra4 Ba6 Qa1 Bc4 Ne4+ Kd4 Rh8 Bc5 g8Q Rf7 h7 Ba7 Nef6 Kc5 Rb4 Ba2 Qe8 Bb1 Rf8 Bb6 h8Q Qc8 Rf4 Kb5 Rf3 Qe3 Qh7 Qd4+ Qe4 Qd8 Qf4 Qc8 Ne7 Nd5 Rg3 Qd8 Qa7 Bc5 Qb8+ Nb6 Ned5 Qc8 Rh8 Qd8 Qe7 Qg8 Qee8 Qh7 Rf8 Qh8 Rg8 Qe4 Rhg2 Bg1 e3 Qc4 Re2 Qd4 Qa7 Rd8 Qb8 Rc8 Kf3 Rd8 Bf5 Rc8 Kg4 Rd8 Qe6 Rdf8 Qee8 Qg7 Be4 Qc4 Qc7 Qb4 Qa8 Re8 Qf1 Qh8 Nh7 Rf5 Qf2 Nf4 Nhf6 Re7 Qf8 Rh7 Qf7 Nh5 Ra8 Rf3 Qe8 Rf7 Qcb8 Qc3 Bf5 Qc5 Qe1 Rf1 Qf2 Qd4+ Qf4 Rxf4+
r3B2K/p3p1nq/3NBR2/1B4rp/Rp1pPb1b/1PknQQ1P/4qP2/5Q2 w - - 1 3 legal: proof: e4 c5 d4 f5 dxc5 b5 a4 g5 h3 f4 Nc3 g4 Bd2 b4 Nd5 g3 Ne3 Ba6 Bc3 Bc4 Be5 Bb5 axb5 Nc6 Ng4 Nb8 Nh2 gxh2 Bd4 Qc7 Be3 fxe3 Qd5 Qa5 Qd1 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 h5 g4 d5 c4 d4 b6 e2 c6 e1B b3 Bh6+ g5+ Ke6 c5 Bg7 b7 Bf8 c7 Qe8 c8B+ Nd7 b8Q Rh7 g6 Bg7 Kg5 Be5 c6 Qf7 c7 Rh8 g7 Bc3 Qf3 Rh7 Ne2 Nf6 g8Q Bg3 Ra4 Ke5 Rg1 h1Q Qb5+ Nc5 Bd7 Rg7+ Kh6 Bh4 c8B Ne8 Ng3 Rg5 Nf5 Bd2 Nd6 Ng7 Kh7 Bf4 Kh8 Qg2 Qc4 Nd3 Be8 Qg4 Be6 Qff5 Qe3 Qe2 Qf8 Qf7 Rg3 Qg6 Rf3 Qf5 Kg8 Qh7+ Kf7 Qa2 Qcc1 Bh2 Bg4 Nc5 Bfb5 Nd3 Qf1 Qd2 Rf6 Qb2 Rh6 B2g3 Qee1 Kf4 Be6 Kf3 Qc1 Qf5+ Kg8 Be5 Qg2+ Ke2 Qe3+ Kd1 Rg6 Kc2 Kh8 Kc3 Qf1 Qe2 Rh6 Qg6 Qff3 Qf5 Rg6 Bf4 Rf6 Qh7+
RQb1Kq2/4p2p/n1p3r1/5P1P/bb1p2QB/1PR3N1/Q2P3p/1B2qrkB w - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 Nh3 axb4 Na3 b3 Nb1 b4 Na3 b2 Ng1 b1B Bb5 b3 Ba6 Nf6 Bf1 Ng8 h4 g5 h5 b2 Nc4 Na6 Ne5 Nc5 Nef3 Nb3 Nh4 gxh4 cxb3 Ra4 Rh3 Ra5 Rh1 Ra8 Ke2 Kf7 Ke3 Kf6 Kf4 d5 a4 h3 g4 h2 g5+ Kf7 Ke5 c6 f4 Qa5 g6+ Kg7 f6+ Kh6 f7 Be6 f5 Kg5 g7 Kh4 Bd3 Kg3 Qg4+ Kf2 Ne2 Bc2 Ng3 b1Q Bb2 Bc8 Rc1 Nf6 g8B Qd8 a5 Ne4 a6 Nc5 a7 Na6 Bd4+ Kg2 Bf2 d4 Ra5 Bh6 f8Q Be3 Be1 Kg1 Bd5 Rg8 Bh1 Rg6 Qh8 Bd1 Rc3 Qf8 Qg8 Qa1 Bb1 Be2 Qh8 Bb5 Qg8 Rb8 a8Q Ba4 Qa7 Rb4 Qb8 Rc4 Qd5 Nb4 Ra8 Na6 Qdd6 Bg5 Qa3 Bh4 Qa2 Bg5 Rc1 Rc3 Rc2 Rf3 Rc3 Rf1 Qe2 Bb7 Qg4 Bf6+ Ke6 Be5+ Kd7 Bd6 Rc4 Bb4 Rc3 Qf6 Kd8 Bc8 Ke8 Ba3 Bd3 Qd1 Bb1 Qf3 Ne4+ Qg3 Qd1 Qge5 Bh4 Bb4 Ng3 Qe1 Qg4 Qf8+
1Qbb3k/2bp1R2/5K1N/2qBnpQN/P3pp1N/4Pp2/n2P1P2/qR2Rb2 w - - 0 1 illegal: Other
n4Bb1/RnQ1Bk2/pp2p2K/P2qb1p1/4PN1r/1q2PqP1/5N1q/rB2N1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1kr4r/3p1bNr/p2Rr1Rp/1p1PN1bQ/1Pr3n1/1K3N1P/P1QB1R2/rn6 w - - 0 1 legal: proof: f4 g5 c4 gxf4 c5 b5 e3 e5 Qb3 Qf6 Qd1 Qb6 Be2 e4 Bf3 exf3 cxb6 Bb7 Ne2 Ba6 Ng1 Bc8 d4 Kd8 Kd2 f5 Kc2 c5 g4 f2 b4 f1R e4 c4 h3 c3 g5 h6 e5 a6 e6 f3 g6 f4 g7 f2 b7 Kc7 e7 f3 e8R Ne7 g8Q Re1 Qf7 f1R Bg5 f2 Qd3 Re6 Ne2 Nd5 Ng3 Nc6 b8N Ne5 Nf5 Bb7 Bd2 Be7 Nc6 Bg5 Kb3 c2 Rg8 c1R Rh2 Rc4 Ng7 Nc3 Qc2 Ng4 Qh5 Rc8 Ne5 Kb8 Rg2 Rc1 Rh2 f1R Rf2 Be4 d5 Rfe1 Rgf8 Bg6 R8f6 Re7 Rd6 Bf7 Be3 Rhd8 Nd2 Rh8 Ndf3 Nb1 Bd2 Ree4 Ng6 R4e6 Nge5 Nc3 Rb1 Rf1 Re1 Rg1 Re4 Ra1 Rf4 Nb1 Rf6 Rh7 Rg6 Ree8 Qf5 Rg8 Qc2 Rgh8
2R5/p1Q2pBR/Pp1n4/3R2b1/1P3P1N/3P1ppb/B1QqkqrQ/r2qn2K w - - 0 1 legal: proof: f4 e5 c4 h5 Nc3 e4 Nd5 d6 Ne3 d5 Ng4 Na6 cxd5 Nb8 Ne5 Be7 g4 hxg4 Nef3 exf3 Bg2 Bc5 Bf1 Bf8 Kf2 Ke7 h4 Kf6 b4 Kf5 a4 Ke4 a5 c5 a6 g5 h5 c4 d6 c3 h6 b6 d7 c2 h7 Nf6 Bb2 c1Q Ra5 Qa1 Rd5 Ne8 Bg7 Be7 e3 Bf6 Ne2 g3+ Kg1 g2 Nd4 g4 Bc4 Bg5 Nf5 Nc6 Ba2 Nd4 Nh4 Kd3 e4 Nd6 e5 Qb2 Qb3+ Ke2 e6 Nc2 e7 Ne1 Qc2 Qb1 Rh3 Qd1 Kh2 Rg8 h8Q Rb8 Qh5 Rb7 Qhh7 Rc7 Qh8 Rc3 e8R+ Re3 Rf8 Rb3 Kg1 Rb1 Rh2 Ra1 d3+ Qd2 Qh6 Qf6 d8Q Qb2 Qh8 Qc1 Qdc7 Qd1 Nf5 Bd7 Rc8 Be6 Rh7 Bd7 Kh2 Be6 Nh4 Bd7 Kg3 g1Q+ Ng2 Qf2+ Kh2 g3+ Kh1 Re8 Nh4 Bh3 Qg8 Kf1 Qh8 Re2 Bb3 Qc5 Ba2 Rg2 Qe8 Kf2 Qe3+ Kf1 Qg1+ Ke2 Qh2 Qf2
4B1b1/p1qppb2/PknP1b2/1b2Pr1p/Rp6/5Q1r/NP2Rb2/QQ1N1N1K w - - 0 1 illegal: No proof kernel
qb2N2q/q2PRn2/N3RrBP/2Rb1qr1/4p3/1NBrnP2/3BP2b/3k3K w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Qg3 hxg3 d4 Kd7 b4 Kd6 h4 g5 h5 e5 f3 c5 b6 a5 h6 e4 b5 g2 Kf2 c4 b7 g3+ Ke1 g4 b6 c3 Na3 a4 Nb1 c2 Bd2 a3 Ba5 a2 Na3 Nc6 b8N Nge7 b7 Nf5 Bd2 Ra6 Nh3 g1B Nf4 g2 Nh5 g3 Ng7 Ne5 Rh5 Bh2 Nb1 g1Q Bc3 g2 Nd2 Ne3 Nb3 Rb6 Na6 Nf7 b8R Be6 Rb7 Qa8 Re7 Rh7 Rc1 a1Q Re5 Rh8 Bd2 Rg8 Bc3 Qh1 Kf2 g1Q+ Ke1 Qg4 Kf2 Qf5 Bh3 Rc6 Bd2 Rc3 Bg4 Rd3 Bh5 Qc3 Bg6 Qcc8 Ra1 c1R Ra5 Rc6 Rc5 Qa1 Bc3 Qa7 Bd2 Qca8 Bc3 Nc4 Kg2 Qb2 Kh1 Ne3 Rb7 Be7 Bd2 Bd8 Re7 Bc7 Bc3 Bb8 Bd2 Bc8 Bc3 Bb7 R7e6+ Kd7 d6 Rb6 Ne8 Bd5 Rb5 Kc6 d7+ Bd6 Re7 Bb8 d8B Rg7 Bh5 Rg5 Bg6 Rb7 Bda5 Rb6 Nac5 Ra6 Bd2 Rb6 Bac3 Ra6 Ra5 Rb6 Ra6 Kb5 Ra5+ Kc4 Na6 Rf6 R5e6 Bc6 d5 Bb7 d6 Bd5 d7 Qa1+ Nc1 Qb2 Na2 Kb3 Nc1+ Kc2 Nb3 Kd1 Rc5 Qa1 Ng7 Qa5 Ne8 Qd8 Nec7 Qg8 Ne8 Qh8
kn1R1r2/7n/1b1n2K1/NrN1B2B/nR4NB/p4P2/P3P1PR/1bb2bqb w - - 0 1 illegal: No proof kernel forced: bxLB
RK6/bp5b/2pnrNPP/N2PB1k1/BR1rR3/2Bb2N1/b1P1q2p/1b2n3 w - - 0 1 illegal: No proof kernel
1n5k/pP6/bRrK2n1/1pN1P3/2R1p1rq/NP1pB1bR/6NP/BB1b1q2 w - - 0 1 illegal: No proof kernel
2K1nn2/3b1q2/k1p2r2/Pqrn1B1P/6q1/1PNRNP2/1NB1N3/1Q2N2b w - - 0 1 legal: proof: c4 b5 g4 f5 d4 a5 e4 h5 exf5 c6 gxh5 a4 d5 a3 d6 e6 cxb5 Be7 b3 Bf6 Bb2 axb2 Bg2 Bd4 Bh3 Bb6 Bf1 Bc7 dxc7 Rh6 Qd6 Rh7 Qd1 Rh8 Ke2 d5 Ke3 Kd7 Kd4 g5 Kc5 d4 Kb6 g4 h4 e5 a4 d3 a5 d2 f6 g3 h6 e4 h5 g2 f7 e3 f8N+ Kd6 f3 e2 h7 e1Q Ng6 Qe4 Ne5 Qf8 Ne2 Bh3 Kb7 Kc5 c8B g1Q b6 Kb5 Ng4 Qef5 Ne3 Nd7 Rh2 Ngf6 Nbc3+ Kb4 Rg2 b1B Rg7 Rg8 h8N Bg2 Ng6 Qb5 Nh4 Bf5 Qb1 Bh1 Nhg2 d1N Ne1 Qg4 Ra4+ Kc5 Rd4 Be6 Rd3 Qf7 Kc7 Rd8 b7 Nf8+ Bd7 Re8 b8N Re7 Kc8 Ne8 Nc4 Kb4 Nb2 Ne3 Rh7 Nd5 Bh3 Qgf4 Bf5 Qg4 Bg6 Bf5 Rg7 Re5 Be6 Ra7 Nd7 Rb7 Nf6 Re7 Bd7 R7e6 Nfe4 Rd6 Nf2 Rf6 Nfd1 Be6 Bh7 Re4 Ne3 Rc4 Rd4 Kc5 Bc2 Kb4 Rd3 Rc5 Ncd1 Qb6 Rh7 Kb5 Ndc3+ Ka6 Rg7 Qfg6 Re7 Qb5 Rh7 Bg8 Bf5 Be6+ Rd7 Qg7 Be4 Qf7 Bf5 Bxd7+
n1NBnrRq/4Q2P/5B2/P1Nq3q/1r1B1q2/2B1pP1K/1P1q4/3bk1B1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 Kf7 exf5 Ke8 a5 Kd7 Ra3 Ke8 Ra4 bxa4 g3 a6 Nc3 e6 Nb5 Bd6 Na7 Qe7 Bxa6 Qh4 Bf1 Qd8 Be2 h5 Bg4 Bf4 gxf4 hxg4 Kf1 Kd7 Kg2 Kd6 h4 Kc5 d4+ Kc4 h5 c5 h6 g5 d6 e5 f6 e4 d7 g3 h7 a3 d5 g4 f7 e3 f8B a2 f5 a1Q f6 Qa2 d6 Na6 f7 Nf6 Rh5 Rb8 Rg5 Ne8 Bd2 Kd3 Re5 c4 Rg5 c3 Rg8 c2 Ne2 c1Q Qh1 Rb4 Bc3 Nac7 Bfg7 Na8 f8B Qd2 Bgd4 Qd5+ f3 Ba6 Be7 Kc2 Qh6 Kd1 Qe6 Ke1 Nc8 Bc4 Bef6 Bb3 Qe4 Bd1 Qe7 Qc7 d8B Qh5 d7 Qf4 Rg7 Rf8 Bc7 Qd5 d8B Qh5 Kg1 g2 Ng3 Qff5 Rg6 Qe5 Bh4 Qh8 Kh2 Qd5 Ne4+ g3+ Kh3 g1Q Nc5 Qf2 Kg4 g2 Rg8 g1Q+ Bcg3 Qf1 Bh2 Qh1 Bf6 Qe2 Bg1 Qeh2 Qd7 Qh6 Qe7 Q1h5+ Kg3 Qhe5+ Kg4 Qhf4+ Kh3 Qh5+
R4K2/8/1q2Pb2/5B1Q/R2n1Rbr/RrrPR1r1/P2PqNN1/1r1q2kr w - - 0 1 legal: proof: f4 d5 b4 e5 g3 f5 Bb2 d4 b5 d3 cxd3 h6 b6 Nc6 g4 axb6 Ba3 b5 Be7 b4 Bg5 hxg5 fxe5 f4 Kf2 Nce7 Ke1 Nf5 gxf5 Bc5 Bh3 Be7 Bf1 Bf8 Kf2 Ke7 Kf3 c5 Kg4 b5 h4 f3 e4 f2 h5 c4 h6 b3 Kh5 c3 Kg6 b4 f6+ Ke6 f7 b2 h7 g4 Bh3 f1Q Na3 b1R Qe2 b3 Qe3 b2 Qf3 c2 Qe3 c1Q Ne2 Be7 f8R Qcd1 Rf4 Nh6 Qg1 Nf5 Nc2 g3 Qh2 g2 Ne3 g1R+ Bg4 Rg3 Ng2 Ra3 Nc3 Qb6 Qh5 Qfe2 Rh4 Rc1 Rb1 Rb3 Rh1 Bf6 Rh4 Qde1 Nd1 Rcc3 Rc1 b1R Nf2 Q1d1 Rc2 Rd8 h8R Rd4 Kh7 g5 Kg8 Bd7 Bh3 g4 Kf8 Rdb4 Rg8 Nd4 Rh8 Bc8 Rb2 Kd7 e6+ Kd6 e7 Rbc4 Qh7 Ke5 e8R+ Be6 Ra8 Rcb4 Ra3 Ra4 Rf3 Rac4 Re3 Bf5 Ne1 Kf4 e5 Rcb4 e6 Rbc4 Re5 Ra4 Ng2+ Kf3 Rg8 Rbb4 Nf4 Nc6 Ng6 Rg2 Rg7 g3 Ra7 Rg1 Ra8 g2 Qf7 Rh1 Nf4 g1R Qh5+ Kg3 Rg4+ Kh2 Re3 Rg3 Ng2 Kg1 Rc4 Rb5 Rce4 Rac4 Rb4 Rd4 Rba4 R5b3 Rg4 Rf4 Rh4 Nd4 Bg4 Be4 Bf5 Bf3 Rg4 Re4 Rg7 Reh4 Rg4 Qa6 Rge4 Qb6 Rf4 Bg4
BK2k1bq/7n/N3bp2/3B1RBP/Pb2Bb1Q/2P2r2/1q2Pn2/1nB2rN1 w - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 f3 Qb6 f4 Qd8 a4 h5 g4 e5 gxh5 Qa5 fxe5 Qd8 Ra3 bxa3 Kf2 b5 Kg3 d5 Kf4 a2 h4 a1Q c6 b4 e6 g5+ Kf5 b3 h6 g4 h7 g3 c7 d4 Ke5 b2 h5 g2 e7 d3 c3 d2 Na3 b1N Qe1 d1B Nb5 Be6 c8B Nd7+ Kd6 Qb2 Bb7 Bdb3 Qh4 Ngf6 Bd5 Ng4 Rh3 Bh6 Rf3 Rf8 h8B Nf2 Rf5 Nf6+ Kc6 Rc8+ Kb7 Nh7 Bf6 Bf4 Bg5 Rc4 Ka7 Re4 Kb7 Re3 Be4 Rf3 Nc7+ Kd7 Na6 Ke8 Ka7 Qd4+ Ka8 Qh8 Kb7 Bd6 Bd5 Bb4 Kb8 Ba2 Nh3 g1B Bg2 Re3 Bge4 Bh2+ Bf4 Rf3 Ng1 f6 Ba8 Rg8 Bed5 Rgg3 Bg5 Bg8 Be4 Bae6 Bed5 Ng4 Be4 Rf1 Bad5 Nf2 Ba8 Kd7 e8B+ Ke7 Be8c6 Rf3+ Ka7 Bhd6 Bcd5 Bf4 Kb7 Ke8 Ka7 Bd2 Kb8 Bf4+
2q1B1rK/1r2br1N/4Pr2/1Pn1BBp1/1R3nnk/3P3q/2B2bQP/2N1B3 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 d5 Ra5 e5 dxe5 d4 Ra1 d3 g4 h6 b4 d2+ Kf2 Be7 g5 Bf8 g6 Bh3 Ra3 Bf5 Rg3 Bd3 Rg5 hxg5 cxd3 Bd6 Bg2 Be7 Bf1 Bf8 Kf3 c5 Kg4 a5 Kf5 c4 e4 f3 b6 f2 g7 c3 b7 c2 b5 a4 e6 a3 e7 a2 e5 a1B Ne2 Na6 b8B Qc8+ Ke4 f5+ Kd5 Kf7 e6+ Kg6 Nbc3 Kh5 Ke5 f4 e8B+ Kh4 Bc7 Nh6 Kf6 f3 g8B Ra7 Be5 Rb7 Bh7 Nc5 Ne4 Be7+ Kg7 Bd4 Nf6 Ng4 Be4 Be3 Nh7 Rf8 Ba3 c1N Qc2 d1Q Bb4 Qe1 Bg2 f1R Ba5 f2 Bgf3 Rh8 B4g6 Qd2 Bd5 Bd4 Bb3 Qe3 Qd2 Qh3 Bc2 Na2 Be4 Nc3 Bb4 Nd5 Bc3 Ra1 Rb1 f1R Rb4 Rf3 B4g6 Raf1 Nc1 Rff8 Qe2 R1f6 Bf5 Nf4 Qg2 Bf2 Bd2 Rh6 Be1 Rff6 Nf8 R8h7+ Kg8 Rhf7 Nh7 Rhg6+ Kh8 Rg8+
k3b3/2r2BQ1/1n1KBPP1/2P1q1Pr/2rn2RB/3BrR2/1pbb4/B1N2b2 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 g4 h5 g5 g6 Nd2 Rh7 Ndf3 Rh8 Ne5 Nf6 fxg6 Ng8 Ng4 hxg4 f5 Ra4 Kf2 Ra7 Ke1 Ra8 Kd2 d5 Kd3 Kd7 Kd4 Kc7 Ke5 b5 a4 Kb7 c4 g3 h4 b3 f6 g2 a5 d4 h5 d3 h6 b2 h7 b1B Rh3 b4 Ne2 g1R Rh4 d2 Nc3 b3 Bd3 Bd7 Ne2 Qc7+ Kd5 e5 Ra3 e4 Rg4 e3 Bb2 Ra7 c6+ Ka8 a6 Nh6 Nc1 e2 Ba1 Bb4 c5 e1R Qf3 Rb7 a7 d1B Qe2 b2 Qe7 Be2 Qg7 Qh2 c7 Bc2 c8B Be8 Be6 Bf1 Bf7 Qe2 Kd6 Nd7 Rb3 Nb6 Rc3 Rf8 h8B Rc7 Rb3 Bd2 Be6 Kb7 a8B+ Kb8 Bf3 Rh1 Ra3 Rh5 Bfd5 Qe4 Bf7 Re3 Bde6 Kb7 Qh7 Rh4 Bg7 Rh8 Bf8 Qf5 Rb3 Ka8 Qg7 Rh7 Rg1 Rc4 Rg4 Ng8 Be7 Rh5 Bd8 Ne7 Rc3 Rc8 Bc7 Nc6 Be2 Nb8 Ke7 Reh3 Bg3 Nc6+ Kd6 Nd4 Bh4 Rc7 Re3 Qe4 Bd3 Qf5 Re2 Rf3 Rf2 Re3 Rf3 Qe5#
2k2r2/b2N1PB1/pB5r/1RnBn1P1/1rQBPB2/1Pn1rnK1/8/1R3bq1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 h4 gxh4 d4 f5 d6 f4 d5 f3 Nd2 Kf7 Ndxf3 Qe7 Nd4 exd4 Ra3 Qd8 Rf3+ Ke8 Rf6 Bh6 Rf7 Bf8 f4 h5 Kf2 c5 g4 c4 e4 h3 g5 h2 b3 a6 f5 h4 b6 h3 b7 c3 f6 d3 Qh5 c2 Kf3 d2 Kg3 d1N Be3 c1N Ba7 Nd7 b8B Ne2+ Kf3 Ndc3 Qh7 Ne7 Bd4 Ng6 Qg8 Nc5 Rb7 Qb6 d7+ Kd8 Bf4 Rb8 f7 Qa7 Rb5 Ne5+ Kf2 Qb6 Nf3 Ng1 Bc4 Kc7 d8B+ Kb7 Nd2 Ngf3 Rb1 h1R d6 h2 d7 Re1 Bf6 h1R d8B R1h6 Kg3 Re3 Bg7 Bh3 Bd5+ Kc8 Nc4 Bf1 Bc7 Qa7 Bd8 Be7 Bb6+ Bd8 Qe8 Rf8 Qe7 N5a4 Qb4 Nc5 Nb2 Rb7 Qc4 Bc7 Na4 Bb8 Bc7 Qb6 Bd8 Ba7 Bc7 Ne6 Nc5 Rb8 Nd7 Qc5 Ra5 Rb4 Rb5 Qb6 Bd8+ Nc5 Bc7 Qg6 Bd8 Qh5 Ba5 Qh1 Bb6 Qg1#
Q1r1r3/P1Nkbn1q/5KRn/R4PB1/1PqN3q/p2P1q1n/5r1N/2N1N3 w - - 0 1 illegal: No proof kernel
1B3b2/5rkq/3B2rN/PP1P1B1r/1b1r2B1/nR1pq2b/P4Rb1/2Q2BK1 w - - 0 1 illegal: No proof kernel
K2b1k1r/5N2/n3PN1r/N1Pn1b2/pnP2R2/2n3P1/N2RrnQ1/2r2B1N w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 e5 axb5 g5 Bf4 gxf4 Kd2 e4 g3 Qg5 h3 Qg4 f3 exf3 hxg4 f2 Kc3 h5 Kb4 f5 Ka5 d5 b4 h4 c4 f3 e4 h3 b6 d4 g5 h2 e5 a6 b5 f4 b7 d3 Kb6 a5 g6 d2 g7 a4 Ra2 Na6 b8N Be7 Qe2 d1N Nc3 Rh6+ Nc6 Nf6 g8N Kf8 Nd8 Bf5 Kb7 Nd5 b6 Ndb4 Nf7 Bd8 Rd2 Rc8 Na2 Nc3 e6 Ra8 Bh3 f1R Nf6 Rc1 Bf1 f2 Nh3 f3 Rg1 Rc8 Ka7 h1N b7 Re1 b8N Rc1 Qe4 Re1 Qa8 Re2 Nc6 Rb8 Na5 Rc8 Bg2 f1R Nf2 Rc1 Bf1 Rb8 Rg2 Rc8 Rh2 Rb8 Rh4 Rc8 Nd3 f2 Rf4 Rb8 Bg2 f1N Nf2 Ne3 Bf1 Rc8 Qe4 Ned5 Qg2 Nb8 Nh3 Nf2 Ka8 Ng4 Nf2 N8a6+ Kb7 Ra8 Nh1 Rc8 Ka7 Nf2 Kb7 Rc7+ Ka8 Rd7 Nh8 Rdh7 Nf7 Rh8
3qn3/1Kn1n2B/2PPrP1r/1qN4Q/5p1B/kPbb2Rp/5N1N/Nq3N2 w - - 0 1 illegal: No proof kernel
1BN2qB1/6NP/P3Kp2/rqp2NRP/NQN5/qrn1q2k/2P3b1/4r2b w - - 0 1 legal: proof: f4 a5 h4 e5 fxe5 Qg5 e4 Qh5 d4 Ke7 a4 Qg4 b4 axb4 h5 Ra5 h6 Rd5 e6 Kd6 e5+ Kc6 g3 Ra5 d5+ Kc5 Ra3 Be7 Rf3 Ra8 Rf6 Qf5 Rg6 Bh4 gxh4 hxg6 h5 Qf6 d6 Nc6 Nf3 Qd8 Ng1 Nce7 dxe7 Kc6 Kd2 Kd5 Kd3 b5 e8N c5 h7 b3 a5 g5 e7 Ke6 Ke4 d5+ Kf3 Kf5 e6 b2 Nc3 b1Q Bg2 b4 Rh4 f6 Qd2 b3 Ne4 b2 Bf1 g4+ Kg3 g5 Qh2 d4 Bd2 d3 Nh3 Qa1 Be1 b1Q Nd2 Qa3 Nc4 Qb5 Nf2 d2+ Nd3 d1B Qd2 Bf3 Qb4 Bcb7 Ndb2 Bg2+ Bd3+ Bbe4 Na4 Bh1 Bc3 Qc8 Be2 Beg2 Bf3 Qcb8+ Be5 Qd8 Bb8 Qd6+ Kf2 g3+ Ke2 g4 Bd5 Kf4 Ng7 Ra7 e8N Ne7 Nf5 Kg5 Bc6 Nd5 e7 Nc3+ Ke3 Qd8 Ned6 Qf8 e8N Rg8 Qb3 Rgg7 Bd5 Rgb7 Kd3 Bh3 Ke3 g2 Qb4 g1R Nc8 g3 Bg8 g2 Neg7 Qb6 Qb1 Re1+ Kd3 g1Q Rf4 Qg3+ Rf3 Qe5 Rg3+ Kf4 Qb2 B3g2 Rg5 Qbb4 Qb1 Rb5 Qb2 Rab7 a6 Ra5 N4d6 Qb6 Kc4 Qe3 Qb5 Kf3 Qb2 Kf2 Qb1 Kg1 Qb3 Kh2 Qb1 Ne4 Kd5 Kh3 Ke6 Qc6 Qb2 Rb6 Qd4 Rb3 Qb4 Qb5 Nc4 Nc3+
2r1N2k/1p1P1p1N/5n2/2Rr1rbN/1r2N1P1/4KPN1/1Pr1B3/rR1Qrq2 w - - 0 2 legal: proof: h4 e5 c4 g5 a4 gxh4 d4 a5 c5 d6 Be3 Bd7 cxd6 Nh6 d5 Ng8 Bd4 Bb5 axb5 Na6 bxa6 exd4 Kd2 h5 e4 c5 g4 d3 f3 c4 e5 c3+ Ke3 h3 e6 h4 a7 c2 e7 c1R Qd2 h2 Qf2 a4 Qd2 a3 Qf2 h3 Qd2 a2 Nc3 Nf6 Be2 Rc2 Qd1 d2 Rb1 a1R Ne4 Rh6 Rc1 Rac8 a8N Qa5 Rb1 Qb5 Nb6 Rh5 Nd7 Rf5 Rc1 Ra4 Rb1 Bg7 Nf8 Rb4 Nh7 Qc4 Ra1 Bf8 Ra5 Qa6 Rc5 Qa1 Qf1 d1R Qe1 Rdd4 Qd2 Qf1 Qd1 Kd7 e8N Be7 Ng7 Bd8 Nh5 Ke8 d7+ Ke7 d6+ Ke6 Bc4+ Rdd5 Ne2 Be7 Rg1 h1R N2g3 h2 d8N+ Ke5 Ne6 Bd8 Rg2 Rg1 Neg7 h1R Ne8 Ke6 d7 Ke7 Nhg5 Kf8 Rh2 Kg8 Nh7 Kh8 Bd3 Qg2 Ba6 Re1+ Be2 Qf1 Rh4 Ng8 Rh3 Bh4 Rh2 Nf6 Rh3 Rg1 Rh1 Bg5+ Nf4 Qh3 Qc1 Ref1 Qd2 Ra1 Qd3 Rg2 Rb1 Rg1 Qd2 Re1 Qd1 Bh4 Nfh5 Qh1 Rc3 Qf1 Rc5 Bg5+
k1n1Rb1r/1nQ1p3/3R2B1/3R2b1/P3NP1p/n1R1RnbP/P1p5/4q1BK w - - 0 1 legal: proof: f4 b5 e4 a5 c4 d5 d4 dxc4 e5 f5 d5 a4 b3 Bb7 Nd2 Ra6 Ne4 Rd6 exd6 fxe4 bxa4 Bc8 Qb3 Bg4 Qd1 Bf3 gxf3 Qc8 Qc2 Qd7 Qd1 Qd8 Kf2 Kd7 Kg2 Kc8 d7+ Kb7 d6 g5 h3 c5 f5 h5 f6 c3 f7 c4 Qc2 h4 Qb3 e3 Ba3 g4 Qc2 e2 Qh7 e1B Qe4+ Nc6 Rh2 g3 Qe3 b4 Qc5 c2 Ne2 c1B Kh1 b3 Nc3 b2 Re2 b1N Ne4 c3 Re3 Nf6 Bd3 Na7 Qc7+ Ka8 Bc5 Ne8 Bd4 Qb8 d8R Na3 d7 Nd6 Bb6 Bcd2 Rc1 Nac8 Re8 Nb7 d8R Qa7 Rd6 Qa5 Rd1 c2 f4 Bc3 Ba7 Bf6 Rd5 Bg5 Bb6 Bfh6 f8R Qd2 Rf6 Bf8 Rc6 Qa5 Rc3 g2+ Kh2 g1N Kh1 Qb4 Rd6 Qb3 Nd2 Qg8 Re4 Nf3 Bg1 Bf6 Re3 Qg3 Bg6 Bg5 Ne4 Qf2 R1d2 Qf1 Rd1 Bg3 R1d5 Qe1
K2qb1N1/3r4/nr4P1/p2B1kN1/P1PPp1R1/2q4q/NQ1R2qp/2bN3N w - - 0 1 legal: proof: e4 c5 f4 f5 c3 fxe4 b3 c4 bxc4 d5 Kf2 g5 Ke1 d4 cxd4 Bg4 Kf2 Bd7 Ke1 Bc8 h4 Nh6 g4 Na6 f5 Qd7 Ba3 Rb8 Bd6 Nb4 Bf4 gxf4 g5 Nc6 Qc1 Qd8 Qd1 Ne5 h5 Ng6 hxg6 Ra8 Bg2 Ng8 Bh3 Qd5 Bf1 Qd8 f6 e3 d5 Kd7 Ke2 b5 Kd3 h5 Kd4 h4 Kc5 e5+ d6 Ke6 Kc6 f3 a4 b4 d4 h3 g7 a5 f7 f2 d7 e4 Qf3 e2 g6 e1Q Nc3 b3 Qe2 b2 Ra2 Qe8 Nd1 h2 Nh3 Qc3 Rg1 Nf6 g8N Ba3 Rg2 Rb8 f8N+ Kf5 Rg1 Rh7 Ne6 Nd5 Neg5 Nc7 Rg3 Qf8 d8N Na6 Bg2 f1Q Nhf2 Re7 Bh3+ Kf4 Be6 Qh3 Bd5 Kf5 Nh1 Be6 Rg1 Rd7 Rg4 Bf7 Qc2 Qe7 Qb3 Be8 Qb4 Qcg3 Qb6 b1Q Rd2 Qbd3 Qb3 Bc1 Qb2 Ra8 Kb6 Qdf3 Nc6 Qgg2 Nb4 Qc3 Na2 Qd8+ Kc6 Rd6+ Kb7 Rb8+ Ka7 Rbb6 Ne6 Qf6 Ka8 Rd7 Ng5 Qd8#
nbb4q/3B1q1k/Rp2K2N/1Pr2Npp/2N2Nr1/2P1N3/PQ1P2qq/1B6 w - - 0 1 legal: proof: e4 d5 exd5 a5 g4 f5 b4 Bd7 b5 Qc8 Na3 Qd8 Rb1 Bc8 Rb4 axb4 Bb2 c5 Bc3 Nd7 Bb2 c4 gxf5 g5 h4 c3 h5 cxb2 Nb1 Ne5 Na3 Ng6 hxg6 Qd6 Be2 Qb6 Bf1 Qd8 Ke2 b1Q Kf3 e5 Ke4 h6 f4 b3 g7 Kf7 d6 b2 Kd5 e4 d7 e3 f6 Kg6 f7 e2 f5+ Kh7 f6 e1Q c3 Qc2 Nc4 b1Q Qc1 Qde8 d8N Be7 Nh3 Bb4 Nf4 Qbb3 Ng2 Ra7 Bd3+ Bf5 Qb2 Qf2 Ne3 Bd6 Rh2 Qc1 Bb1 Qcf1 Rh4 h5 f8N+ Kh6 f7 b6 Nfe6 Bb8 f8N Ra4 Rg4 Qh2 Nf4 Bc8 N8g6 Kh7 Nf7 Qfh3 Nh6 Nf6+ Kd4 Q3g2 g8B+ Kg7 Rh4 Nd5 Ne7 Nc7 Be6 Na8 N7f5+ Kh7 Bd7 Rg8 Rg4 Rg6 Rh4 Rc6 Rg4 Qf8 Rh4 Rc7 Ke5 Qh8+ Ke6 Rc5 Ne2 Qd1 Ne5 Rg4 Ng7+ Re4 Rg4 Qf3 Rh4 Qff8 Ngf5 Ra4 Rb4 Qg2 Rb3 Qfg7 Ra3 Rg4 Ra6 Qdh1 Nf4 Qhh2 N5c4 Qf7+
1b6/1b2N2b/3kP1r1/3p4/Np1N1R2/r1BR1NqN/PPP3bp/rQbK4 w - - 0 1 illegal: No proof kernel
RBBnKBNR/q2r4/2n1k1n1/r5p1/3Bnrb1/2P1P1P1/1P1Q3n/q3bB2 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 Nd2 h5 Ne4 h4 Ng3 Rh6 Nh5 Rh8 g3 h3 Nf4 Bb7 Ng2 hxg2 Kf2 Ba6 Ke1 Bc8 Kf2 Ke7 Kf3 g5 Kg4 d5+ e6 f5+ Kf3 a5 h4 f4 Kg4 a4 Kf5 f3 Kg6 d3 h5 d2 b6 d4 h6 f2 e3 d3 b7 a3 h7 a2 Qg4 d1N Bd2 Qa5 Rh6 Nc3 Qh4 Ne4 Qh2 Nc6 b8B Qa7 Nh3 g1N Rh5 Nd8 Nf4 Nf3 Rh3 Bd7 Nh5 Nd4 Nf6 N4c6 Bc3 d2 Bd4 d1R Rh6 Qc7 Qg2 Kd6 e7 Ke6 e8B Bb4 Bc5 Ba5 Bf8 Be1 c3 Nge7+ Kg7 Rd6 Ng8+ Ng6 Rh5 Ra5 Bf7+ Ke5 Be6 Qa7 Bg4 Kd5 Rh2 Rf6 Rh3 Rf4 Bf5 Ne6+ Kf7 Bc8+ Ke8 Ned8 Rh1 Be6 Bh3 Bg4 Rh2 Be2 Bc8 Bg4 Bb5 f1N Qd2+ Nd4 Bd3 N4c6 Rh1 Nh2 Bf1+ Qd4 Nh6 Rg8 h8B Rg7 Ng8 Rd7 Bf6 Ke6 Bfe5 Nf3 Rh8 Qb6 Bd4 Nh2 Rc1 a1Q Rd1 Qa2 Ra1 Qb1 Ra4 Qa1 Ra2 Rd5 Ra6 Ra5 Ra8 Qa7
1k1KR1rN/5n2/3brBn1/N1p4q/2N1bPP1/2P2qR1/2QnNq1P/1r2n1N1 w - - 0 1 illegal: No proof kernel
b3q1Nb/2RNbP2/p3rN1Q/k2BP3/PnPK4/q3N3/1b1N2q1/1rB2nr1 w - - 0 1 illegal: No possible last move, all moves rejected
2q1BRBb/5p2/4b3/3nrk2/PBn2P2/2PN2rK/1qPB2Rb/2QbB1qr w - - 0 1 legal: proof: g4 c5 b4 e5 b5 h5 gxh5 c4 Na3 c3 dxc3 a6 Nf3 axb5 Ng1 b4 Nb5 Ne7 Nd4 exd4 Qd2 Ng8 Qd3 Ne7 Qd1 Ng8 h4 Ke7 e4 Kf6 f4 g5 Kf2 d5 Kg2 b5 a4 b3 h6 d3 h5 g4 e5+ Kf5 h7 b2 h6 b1R e6 d4 e7 d2 e8B b4 Kh2 g3+ Kg2 b3 Beb5 d3 Nh3 b2 Qe1 d1B Bd2 Nf6 Nf2 Nc6 Kh3 Rg8 h8B g2 h7 g1B Bg7 Ra5 h8B Ne5 Be8 Nc4 Bh6 Be7 Bf8 Nd5 Bf6 Bh2 Bh4 Bf6 Bb4 Bh8 Rg1 Be6 Rg2 Rc1 Rb1 Qc8 Be2 Ne7 Bg3 Re5 Bf3 Nd5 Be4+ Kf6+ Bf5 Rg4 Bh7 Rg6+ Ng4+ Kf5 Bg8 Rg7 Nf2 Rg6 Be3 d2 Nd3 Rg4 Qf1 Rg5 Be1 Rg7 Ra1 b1Q Ra3 Qb2 Rb3 Be2 Qg1 d1Q B3d2 Ra1 Bf8 Qdb1 Rb8 Bd1 Be7 Qb6 Bb4 Qb2 Qf1 Qg1 Bg3 Bh5 Qc1 Bd1 Bge1 Rg3+ Kh4 Ra3 Qa1 Qc7 Bf2 Bf3 Bc6 Qe1 Rf8 Qc8 Be8 Qe3 Qh1 Ra1 Qb1 Qb3 Qb2 Rh1 Bfe1 Bd1 Qa3 Qg1 Qc1 Rg6 Kh3 Qb2 Rg3 Rg4 Rg2 Rg3+
2R2rn1/1R2RKP1/3b1R1q/b7/Prn2N1Q/nn2P2p/2qR1b1P/3BB1kb w - - 0 1 legal: proof: c4 a5 f4 d5 b4 dxc4 bxa5 g5 Nc3 e5 fxe5 Ke7 Nd5+ Ke8 Nf4 gxf4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kh5 Ke4 g4 f5 a4 b5 d4 c5 g5 f3 d5 f4 e6 c3 a6 f2 g6 c2 a7 c4 e7 f3 g7 c3 d6 b4 d7 b3 Nh3 b2 Qd2 b1N Ng1 Na6 Qg5 Qb6 d8R Rb8 a8R Bb7 Qh6 Na3 Kg5 Nc5 Bd2 c1B Bg2 f1Q Nh3 c2 Kh5 Qd1 Qf6 Nb3 Bc3 Ke3 Qf5 f2 Qf6 f1N Qf7 Nfd2 Bf3 Ndc4 Rb1 Bd2 Qf6 c1B Nf4 Kf2 e8R Bd6 Re7 Qc2 e3 Be1 Qg5 Bcd2 Bd1 h6 Rg1 Bh1 Qf6 Qa6 Rg6 Rb4 Qh4+ Kf1 Rb2 Bf2 Rf6 Kg1 Rac8 Qb6 Rdd7 Qc6 Rb7 Qb6 Kg4 h5+ Kg5 Qa6 Re4 Qc6 Kg6 Qa6 Kf7 Bde1 Qh3 h4 Ree7 Bd2 Qf3 h3 Qe4 Qb5 Qh7 Qg5 Qh5 Qh6 Qh4 Bc1 Be1 Bd2 Bf3 Rb5 Be2 Ba5 Bd1 Rb4 Ra2 Qe4 Rd2 Qc2 Ree6 Ne7 Re5 Re8 Ree6 Ng8 Ree7 Rf8+
br4R1/2Q1PK1q/2BP1pn1/2Br3n/N4bB1/1Br2P2/b1bP3N/krq2B2 w - - 0 1 legal: proof: c4 a5 b4 axb4 h4 g5 hxg5 d5 cxd5 e5 Qb3 e4 Qc2 Nf6 Qd1 Ng8 a4 e3 f3 Nf6 g3 Bc5 Na3 Be7 Ra2 Bf8 Rb2 Ng8 Rc2 Bf5 Rc4 Bd7 Rch4 Bc8 R4h2 Be7 Rf2 Bd6 Qb3 exf2+ Kd1 Bf8 Kc2 Ke7 Kb1 Kd7 Qd1 Ke7 Kc2 Ke8 Kd3 Ke7 Ke4 Kd6 g4 Kc5 Ke5 h5 e4 b5 g6 h4 a5 b3 g5 Kb4 a6 c5 d6 h3 a7 c4 g7 b2 g6 b1R Be2 f1B Qc2 c3 Kd5 h2 e5 Nd7 e6 Ndf6+ Ke5 Ne7 g8B Nh5 g7 f6+ Kd4 Ng6 Kd5 Qe7 Nh3 Rb8 Bc4 Bd3 Rg1 h1R a8B Bf5 Bc6 Bb7 Bb2 Ba8 Nf2 Qf7 Rg2 Rhc1 Bf1 Bd3 Ng4 Rh6 Qd1 c2 Bd4 Kb3 Nc4 Ka2 Nh2 b4 Nb6 b3 Bc5 b2 Na4 Ka1 Qe2 Bf5 Qc4 Rh8 Bh7 Bd3 g8B Bh6 Qc3 Bf4 Qa5 Qg7 e7 Rb5 Be6 Rhb8 Bhg8 Qh7 Bg4 Be4+ Ke6 Bd3 Be3 Rd5 Bc5 Bc4 Rg1 Ba2 Qc7 Re1+ Kd7 Re3 Bf7 Rc3 Ke6 Rd1 Rg3 b1B Rg2 c1Q Bg8 Ng7+ Kf7 Bc2 Bfb5 Rh5+ Be6 Nf8 Bf1 Qa3 Bb3 Rd5 Rg1 Qh3 Bh7 Rb1 Bf5 Qc1 Rg6 Qh7 Bg4 Nh5+ Rg7 Qh8 Rg8 Ng6 Qb7 Qh6 Qc7 Qh7+
3R1nNk/1P3n1n/q1Brpb1B/1brpP2N/3N1PN1/1q3P2/1b6/q3KNQ1 w - - 0 1 legal: proof: d4 b5 b4 c5 a4 cxd4 axb5 h5 g3 f5 Ra6 f4 gxf4 Rh7 Rg6 Rh8 Rg4 hxg4 h4 Kf7 c4 a5 e4 g5 f3 Kg7 h5 d5 b6 d3 c5 e6 b7 g3 b5 d2+ Ke2 a4 b6 g2 c6 g4 c7 g3 e5 Nh6 Ba3 Nd7 b8N Ra5 b7 Be7 Nc6 Rc5 Nd4 Nf7 h6+ Kg8 Qe1 Bf6 h7+ Kg7 Kd1 Nf8 Bb5 Bd7 c8N Qb6 Nge2 g1B Ne7 g2 Ng3 Qa6 Bc6 Bf2 Qf1 g1N Ng8 Nh3 Qg1 Nhg5 Bb4 a3 Nh5+ Kg6 Rh4 a2 Rh3 a1Q Ba3 Qb6 Ke2 Be1 Kf1 d1Q Nd2 Qa4 Ke2 Qaa5 Nf1 Bc3 Bb4 Bb2 Rh4 Bc1 Ke1 Qba6 Rh3 Q5a3 Rh2 Qb3 Ra2 Qad3 Ra8 Qda6 Rd8 Be8 Nh6 Rg8 h8N+ Kh7 Ng4 Rg7 Ng6 Bb2+ Kf2 Kg8 Ne7+ Kh8 Ng8 Ngh7 Ba3 Nd6 Bb4 Rd7 Ba3 Nf7 Bb4 Rc4 Be7 Rd6 Ke2 Bg7 Bg5 Bf6 Bh6 Rc5+ Kf2 Bc1 Ba4 Bb5 Ke1 Bd3 Bd7 Bb5 Bc6 Bb2+
Bn3Q2/p1b3P1/B1q2B1r/1nb1bP2/r6q/Rnp5/PqP2BKN/1k2NB2 w - - 0 2 legal: proof: e4 f5 h4 g5 hxg5 c5 b3 d5 Rh2 c4 Rh1 d4 Na3 c3 Rb1 Be6 Ra1 Bc4 bxc4 Bh6 Rb1 Bg7 Rb6 Bf8 Rf6 fxe4 Rf3 Qb6 Rfh3 Qd8 Re3 dxe3 d4 Kd7 g4 Kc6 f4 e5 g6 b5 d5+ Kc5 g7 Kb4 f5 h5 d6 e2 Kf2 e1N c5 h4 g5 h3 c6 e3+ Kg3 e4 c7 h2 c8B e2 d7 e3 g6 Bc5 Nh3 Nd3 Qe1 Ne7 g8B Rh4 g7 Nd5 Qd2 e1B+ Kf3 e2 Kg2 Bg3 Bb2 e1B Nb1 Nc1 Qh6 Nb3 Ng5 Nc7 Bd5 Be5 Qh8 B1g3 Qf8 Qf6 d8B Qc6 Nd2 Rd4 Ba1 Ka3 Bf6 b4 Bca6 Nb5 Ngf3 Bc7 Rg1 Bge5 Ne1 Rf4 Ndf3 h1Q+ Kg3 Qh4+ Kg2 Na5 Rh1 b3 Nh2 b2 Bf3 b1Q Bb2+ Ka4 Bd5 Nb3 Bc1 Qb2 Be3 Ka3 Bf2 Ra4 Nhf3 Qd4 Rh6 Qh4 Nh2 Qc1 Bf3 Kb2 Rg6 Kb1 Rg4 Ra3 Ra4 Qb2 Ra5 Ra4 Bd5 Nd7 Bf3 Rd8 Be4 Nb8 Bf3 Rd6 Bd5 Rf4 Ra3 Ra4 Bf3 Qb6 Ba8 Rc6 Bg5 Rh6 Bf6 Qc6+
kN4NK/1b1NBNQq/bqppP2b/r7/2nPR2n/PnP5/5r1N/2R2q2 w - - 0 2 legal: proof: f4 a5 g4 f5 gxf5 e5 fxe5 h5 b4 axb4 Bh3 Qf6 Bg4 hxg4 Nf3 Qg5 Ng1 Qd8 Kf2 b5 Kg3 g5 d4 b3 e4 b4 h4 b2 a3 d6 e6 b3 f6 c6 h5 Bh6 f7+ Ke7 f8N Qb6 e5 Kd8 e7+ Kc7 e8N+ Kb7 c3 Nd7 e6 Nc5 Nc7 Ra5 Nf3 Nf6 Re1 Nfd7 Nh2 Ne5 Nd2 b1B Ne4 b2 Nf6 Nc4 N8d7 Rf8 Na6 Bd3 Ng8 b1Q Re4 Ka8 Qg1 Rf2 Nab8 Bb7 Bf4 Qc2 Rc1 Nb3 Be5 Be2 Bf6 Bf1 Be7 Be2 Re3 Qh7 Qg2 Ne5 Re4 Bea6 Qf3 Nc4 Qf7 Rff5 Qg7 Rf7 Kg2 g3 Kh3 g2 Kg3 g4 Kh4 g3 Kg4 Be3 h6 g1N Kh4 g2 Kg4 Qh8 h7 Rf2 Kh4 Bg5+ Kh5 Nf3 Kg6 g1Q Ngf6 Qf8 h8N Qf1 Kh7 Nh4 Ng8 Qf6 Nf7 Qf5+ Kh8 Bh6 Ngf6 Qg6 Ng8 Qh7+
3b4/2p1Nrn1/R2Q1rbq/rBK4N/P1Pn4/1pNk4/b1n3PP/1r1N1RN1 w - - 0 1 illegal: No proof kernel
q6R/RN1Np1P1/Bb4K1/N1p2n2/2P1b1kN/1P1P2r1/nqbn4/1N1b1rQ1 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 f4 gxf4 axb5 Bg7 Nf3 Bh6 Ng1 Bf8 g4 h6 b3 Bf5 g5 Nf6 g6 Ng8 Bb2 Be6 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 Kf3 a5 Kg4 f5+ Kf3 a4 h4 a3 c4 g4+ Ke2 g3 Kf3 g2 b6 a2 d6 Ke6 h5 Nh6 d7 Bg7 b7 Nc6 b8N Bb7 Rh4 Rf8 Qc2 Nb4+ Nc6 Bd4 Qd1 Bb6 Ne2 g1N+ Kg2 f3+ Kg3 f2 Kf4 Nf3 Bh3 f1B Ne5 c5 Nd4+ Kf6 Bg2 Bd3 Qg1 Bc2 d3 Be4 Ndc6 Nd2 Na5 Ra6 g7 Qa8 d8N Rf7 Kg3 Kg5 Nd7 f4+ Kh3 f3 Ndb7 Nf5 h6 f2 h7 f1B h8N Be2 Ng6 Bed1 Rh8 Bd8 Nh4 Rg6 Nf8 Bb6 Nd7 Ng3 Bf3 Rf4 Bg4 Rf1 Be6 Kf4 Bd5 Nf5 Bc6 Rg5 Bb5 Rg4 Ba6 Nh6 Nf3 Rg3+ Kh4 Nf5+ Kh5 Rh3+ Kg6 Rg3+ Kh7 Kg4 Nh4 Bdf3 Na3 Be2 Kg6 Bed1 Rc1 a1Q Nb1 Bdf3 Re1 Bfd1 Re2 Bh1 Re6 Be4 Rf6 Qb2 Rff8 Qa7 Ra8 Qb8 Ra7 Na2 Re8 Qc8 Rh8 Qa8
2b1kq2/rB2b1K1/3nB1p1/4rBN1/NnPn1rP1/1Q1Pp1B1/1q3Pn1/1B4R1 w - - 0 1 illegal: No possible last move
rN1q3N/Pp1bP1NR/2Rp4/r2n4/Q3NnP1/rn1PBNK1/1k1r1b2/2n5 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 a4 b3 axb3 e3 c6 Bb5 cxb5 Kf1 b4 Ke2 Be7 Ke1 Bf8 Kf2 Ke7 a4 Ke6 g4 Kd5 a5 Kc4 e6 h5 e4 f5 c3 f4 e7 b2 e8N f3 e5 h4 g6 h3 a6 h2 g7 b3 a7 Nf6 g8N Bc5+ Kg3 f2 e6 f1N+ Kf4 d6 e7 Bd7 Ra6 Nc6 Ng7 Ng3 Ne6 Na5 Rc6 Rh5 Ng7 Ne2+ Kf3 Nd5 Nh6 Rg5 Nf7 Nef4 Kg3 Kd3 Nf3 Bg1 c4 Re5 Qe2+ Kc2 Nc3 b1R c5 b2 Qb5 Nb3 d3 Ra1 Ne4 b1R Nh8 Ra3 Be3 Kb2 Qa4 Rh5 Rb6 Rg5 c6 Rd1 c7 Rd2 c8N Nb4 Rc6 Ra5 Nb6 Nbd5 Bc5 Be3 Rd1 Bg1 Be3 h1N+ Kh4 Bc8 Nd7 Ng3 Nb8 Nge2 Rf1 Nec1 Kg3 Bf5 Rf2 Bc8 Rh2 Bd7 Rh7 Bf2+
KB1B1qB1/pn3P2/nn6/1NR1B1Np/B1nr2rP/Qn6/P1b1P3/1n1k1r2 w - - 0 1 legal: proof: c4 f5 d4 e5 dxe5 b5 b4 bxc4 g4 Nh6 f4 Qg5 Nd2 Qf6 g5 Be7 Rb1 Qf8 Rb3 Bd6 Rg3 Ke7 Rg4 fxg4 f5 Ng8 f6+ Ke6 Qc2 Kd5 Qd1 Be7 f7 Bf6 gxf6 Kc6 Nb3 Qe8 Nd2 Qd8 Kf2 Kd5 Ke3 g5 f8B c5 h4 h5 f7 g3 e6 g4 b5 g2 b6 c3 e7 c2 e8B c4 b7 c3 Kf4 Kd4 Bca3 c1N Qc2 d5 Bae7 g3 Bd7 Nb3 Qh7 c2 Bb4 c1N Be8 Nf6 Bbe7 Kc3 Ke5 d4 Qe4 d3 Bg7 Kc2 Ndf3 Nd5 Bgf8 Kd1 Bg7 d2 Bc6 Bf5 Be8 Na6 b8B Rg8 Ba4 Qf8 Kd6 Nb6 Kc6 Nd3 Nd4 Ndc5 Bd8 Nb7 Qf3 Bc2 Bge5 Rg4 Nh3 g1N Ng5 g2 Nb5 Rd4 Qd3 Nf3 Rh3 g1R Bg2 Rf1 Qe3 Ne1 Be4 Nd3 Bh7 Nb2 Bg8 Rg4 Qc5 N2c4 Qa3 Rd4 Rd3 Rg4 Rd5 Rd4 Rc5 Rg4 Bbd6 Rb8 B8e7 Rd8 Bb8 Rdd4 B7f6 Ke1 Be7 d1N Bd8 Nc3 Bbd6 Nb4+ Kc7 Nb1 Kb8 Kd1 Bc7 Nc8 Ka8 Na6 Bb8 N8b6+
1qq4q/K2Q1p2/P2B2Bn/2BnbBPR/2P5/4pB2/4Prp1/1rkbrNN1 w - - 0 1 legal: proof: d4 a5 f4 h5 b4 g5 fxg5 c5 dxc5 axb4 a4 Bg7 g4 Ra6 g6 Bf8 g5 Ra7 Ra3 Ra6 Rg3 Ra8 Rg4 hxg4 Kf2 b5 Ke3 d5 Kd4 Kd7 c4 Ke6 h4 Kf5 g7 e5+ Kd3 b3 c6 b2 h5 d4 h6 g3 a5 b4 h7 e4+ Kc2 b3+ Kd2 Kf4 c7 d3 Kc3+ d2 Bh3 Ke3 Rh2 Nh6 Nf3 Nd7 Bf1 Bd6 Ng1 Nf6 Rh5 Bd7 c8B Be5+ Kb4 Ba4 Kc5 Nd5 Bf5 Ra6 B1h3 g2 Bhg4 Rf6 a6 Qg8 Bg6 Rf2 Bf3 Qa8 Bf5 Rb8 h8B Rb6 Na3 b1R g8B b2 Bgh7 Rf6 Bg7 Qh8 Bf8 Rf1 Bfg6 Re1 Bd6 Rf4 Bg4 Rf2 Bf3 Ra1 Bf5 b1Q Bhg6 Qbb8 Nb1 Bc2 Ba3 Bb3 Qc2 d1Q Nd2 Rb1 Qb2 Ba4 Qb5 Qb3 Qc6 Q3b7 Qd7 Bd1 Bb4 Nb6 Kb5 Nd5+ Ka5 Q7c8 Nf1+ Kd4 Bbc5+ Kc3 Ng3 Kb2 Nf1 Qa8 Kb5 e3 Ka5 Nb4 Kb5 Kc1 Kb6 Qab8+ Qb7 Qbc7+ Ka7 Q7d8 Qe7 Nd5 Qd7 Qde8 Qe6 Qb5 Qd7 Qbb8+
1k1n2K1/r4BB1/3PR2p/Rb1p1P2/qnpP2r1/2n2B2/Q1NPB3/Bq3rb1 w - - 0 1 illegal: No proof kernel
4QqrR/5n1N/K3NN2/3rp2P/Nnq2bB1/1R2bpP1/1Pq1P1p1/N1kb4 w - - 0 1 illegal: No possible last move
Nb5r/pq1p1r2/2n3b1/1p2QB2/P2nP2R/1q5P/B2BP1BK/1bqkB1N1 w - - 0 1 illegal: No proof kernel
1qR1nbK1/pr2QN2/1b2q3/B1B2p1p/2P3q1/P2P1k1B/1n1BN2P/2b2B1r w - - 1 2 legal: proof: e4 f5 c4 fxe4 b3 c5 Ke2 d5 Ba3 Bg4+ Ke1 Be2 cxd5 c4 Bb2 c3 Bc1 Bc4 bxc4 g6 f4 Bg7 f5 Bf6 a3 Bg7 f6 Bf8 Ra2 Nc6 Rb2 Qc7 Rb6 Nb8 Re6 Qd7 Re5 Qd8 Rf5 gxf5 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 b5 f7 e5+ Ke3 c2 d3 b4 g5 b3 g6 b2 g7 Qh4 Qe2 Nf6 g8B Ne8 Qf2 Qg4 Nf3 Rh7 Bd2 c1B Ng5 Na6 Qh4 Rb8 Nc3 b1Q Rg1 Nc5 Ne2 Na4 Bh3 Kc5 d6 Nb2 d7 Rb7 d8B Rg7 Ba5 Kd6 Ne6 Rg5 Nd8 Kc5 Rg3 Rg7 Kf2 e3+ Kg2 e4 Qf6 Bd6 f8B Be7 Qg5 Kd6 Bf7 Ke5 Bd5 Bc5 Bc6 Bb6 Bc5 Rg6 Qe7+ Re6 Nd4 e2 Bd5 e1Q Ne2 e3 Bf3 Qe4 Rg8 Qd1 Kg3 Qc6 Nd4 e2 Kh4 e1B+ Kg5 Qe2 Bfg2 Qef3 Be3 Bb4 Bd2 Qfe4 Bf1 Qd7 Rg6 Qg4+ Kh6 Qc6 Kh7 Qce4 Bc3 Kf4 Ne2+ Kf3 Rg8 Rg6 Bd2 Qe6 Bd4 B4c5 Nf7 Bd6 Bc5 Rg5 Qd8 Bf8 Kh8 Qge4 Qe7 Rg1 Kh7 Rh1 Rh8 Qf4 Kg8 Qb8 Rh7 Qc2 Rg7 Qd1 Rg6 Qee5 Rc6 Qe6 Rc8 Qe1 Qd8 Qh4 Qe7 Qg4+
r1N1bb2/6Pk/3R2q1/bpK1N2p/1PnP2p1/NNR2P1r/8/NbB1Q1bn w - - 0 1 illegal: No proof kernel
N2bR3/1b2pB1P/2N1P1pb/pb3b2/PQnqr2P/3R2r1/2kN2N1/1n2K2N w - - 1 2 legal: proof: g4 h5 gxh5 c5 b4 d6 bxc5 Qa5 c6 Qd8 c4 Qb6 c5 Bd7 c7 Qc6 Ba3 Qa4 c6 Bc8 Bc5 dxc5 Qb3 Qf4 Kd1 Qxf2 Kc1 Qg2 Qd1 Qf2 d4 a5 Kd2 f5 a4 Kf7 d5 Kf6 d6 Ke5 h3 Kd4 h6 b5 d7 f4 d8N c4 h7 b4 Nb7 b3 Nd6 f3 Ne4 b2 Ng5 Bb7 c8N Nd7 c7 Ngf6 Qb3 Ne5 Ne4 Nd5 Nb6 Nc3 Ra3 g6 Bg2 Ra6 Na8 Re6 Qb4 Qh4 Bf1 f2 Ng3 Qe4 Bg2 f1B Ke1 Bh6 Nd2 b1B Ngf3+ Ke3 Rb3 Qd4 Nh4 Bf5 Bd5 Rd8 c8N Rf8 Rb2 Nb1 Na7 c3 Nc6 c2 Rg1 c1B Nh1 Nc4 Rg3+ Kf4 Ra3 Re4 Rd3 Rf6 Bf7 Rd6 Ndf3 Be3 Nd2 Bg1 Rc2 Rde6 Rcc3 Re3 Rc1 Rg3 e4 Be2 e5 Bf1 Nb3 Ke4 Ng2 Be2 h4 Bh2 Rdd1 Bg1 Nd2+ Kd3 Rc2 Bge3 Rb2 Bg1 Rb3+ Kc2 Rf3 Qf4 Rb3 Bb6 Rd3 Bc7 Rd8 Qd4 Rg8 Bd8 Re8 Rd6 e6 Rd5 Nb3 Re5 Rd3 Re4 Nd2 Ne3 Ra3 Bb5 Rd3 Nc4+
2r3k1/r2p2Pp/1p1PK2n/2R2R2/RRR1P3/1P1NQ2N/rr2bq2/2bnn2B w - - 0 2 illegal: Other
4K1bN/Br2B3/3pbr2/2b2pBP/2nP1RPp/b2B2B1/k3n2P/1Nr3Qq w - - 0 2 illegal: No proof kernel
8/1P2bKB1/RN2Np2/3r1b2/Q5P1/pPNqnPb1/1RNp3q/1nr1bN1k w - - 0 1 legal: proof: c4 d5 a4 b5 axb5 g5 d4 g4 e3 g3 hxg3 e6 g4 Ba6 g5 Bc8 Bd3 Bg7 Be4 dxc4 d5 Bh6 d6 Bf8 Bd5 exd5 Kd2 Kd7 Kc3 Ke6 Kd4 Kf5 g6 a5 b6 h5 b3 c5+ Kc3 Ke4 g4 f6 g7 a4 b7 h4 d7 h3 Rh2 d4+ Kc2 c3 Rg2 a3 Ne2 Kf3 Kd3 h2 Kc4 h1Q Kd5 c2 Ke6 c4 e4 d3 e5 c3 Bh6 c1B Kf7 c2 e6 Nc6 e7 Na7 e8N Be7 Nbc3 Bf4 Rc1 Qh2 Nd6 Bg3 Nf5 Nb5 Ne3 Ra5 Nf1 Rh7 Qd2 Rh8 Rd1 c1B Qg5 Bd2 Qe5 Qb6 d8N Qd6 Qd4 Bf5 Ne6 Be1 Qa4 Qd4 Rd2 Qe4 Rb2 d2 Rg1 Qd4 Rh1 Kg2 f3 Qe4 N2d4 Qd3 Nc2 Rh7 Nd5 Nc3 Nb6 Rd5 Rg1+ Kh3 Rg2 Nb1 Re2 Rh8 Re4 Kg2 Rd4 Ra5 Rd6 Kh1 Rc6 Rd5 Rd6 Bd8 Rc6 Ne7 g8N Rh7+ Bg7 Rh5 Rd6 Rc5 Rc6 Nd5 Ne7 Ne3 Ned5 Be7 Nc3 Rc4 Nd7 Rc5 Ra6 Rd5 Nb6 Rh8 Na8 Rc8 Nb6 Bgd6 Na1 Rb5 Nd1 Rc1 Nc2 Bdg3 Nc3 Rd5
r5q1/1p1brq2/nB4RN/2QBpK2/1P2PBPB/1r1P4/2p5/k1rnR1qB w - - 0 1 illegal: No possible last move
3q4/2N2pkn/5N1N/1b1q1rpp/1PnP1P1R/n2q3P/n3N1NQ/2BBK1b1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 e5 g5 b5 d3 Rh6 gxh6 e4 a4 d5 Ra3 dxc4 axb5 Qd7 d4 Qd8 Rd3 exd3 Bb2 Qd7 Ba3 Qd8 Bc1 Qd5 Bf4 Bf5 Nh3 Ke7 Bc1 Nc6 Be3 Nf6 Na3 Re8 Ng5 Bc8 Bg2 Qd8 Nf3 Nb8 Bc1 Kd7 Qa4 Bc5 Nb1 Rh8 Ng1 Ng8 Bf1 Bf8 Qd1 Ke8 e4 g5 h7 c5 h3 d2+ Ke2 a4 b6 c3 e5 c2 b7 c4 f3 a3 e6 c3 e7 a2 Bg2 a1N Kf1 Bd7 Ne2 Bb5 Rg1 Nf6 Na3 Nbd7 b8N Ne5 Nd7 Nc4 Ne5 Qd5 Qe1 d1Q Ng4 Qd3 Qd2 Rg8 h8N Nh7 Kf2 Rg6 Ke1 Rf6 Nh6 Rf5 Ng6 Bg7 Bh1 Be5 Rg4 Bh2 f4 Bg1 Nh4 Qd8 Ng2 Qd5 Bb2 c1N Rh4 Na2 Bc1 c2 Kf1 Kd7 e8N Ke7 Nf6 Kf8 Ke1 Qd8 Ng3 Kg7 Ne2 Ba4 Nb5 Qd5 Nc7 Bb5 Ne3 Qd8 Bf3 Qd5 Ba3 Qd8 Ng2 c1Q+ Qd1 Qce3 Bc1 Qe5 Qd2 Qc5 Ng3 Qcd6 Bd1 Qd5 Ne2 Nc2+ Kf1 Q3e4 Qe1 Bh2 Qg3 N2a3 Ke1 Bg1 Qh2 Qd3
q2b3R/2pRPr2/PK3k2/2P2prp/b4q1q/1R2N1n1/1qQRNP2/B4Rr1 w - - 0 1 illegal: Other
r1k2n2/2q2bBp/1p4PP/1q1BB3/pn4P1/b3pRQ1/NKR1P3/2BbrB2 w - - 1 2 illegal: No possible last move
N2r2qN/3QnpPq/1P4pk/3q1r2/1K1B1p2/2p1bP1b/1NP2NnN/1B3R2 w - - 1 2 legal: proof: d4 b5 g4 e5 dxe5 g6 a4 Ke7 axb5 Bb7 b4 Bc8 g5 Ke8 Qd3 Ke7 Qf5 Ke8 Ra6 gxf5 g6 f4 g7 Nf6 Rd6 Ng8 Rg6 hxg6 Kd2 a5 Kc3 c5 e4 d5 h4 c4 e6 a4 b6 a3 b7 a2 e5 a1Q+ Bb2 Bd7 h5 Qda5 f3 Ra6 e7 Q5a4 b5 Rc6 h6 Q4a2 h7 d4+ Kb4 d3 b6 d2 Na3 d1Q Nh3 Qd5 Nf2 Rf6 Bd4 c3 Bc4 Nh6 Rf1 Bh3 Bb3 Qd8 Nc4 Nf5 Nb2 Nh4 Bc4 Qa8 Ba2 Qd5 Bb1 Rg8 h8N Ng2 Nbd3 Rf5 Nb2 Kd7 e6+ Kd6 e8N+ Ke7 Ba2 Qe1 Bb1 Qee5 Nc7 Kf6+ e7 Kg5 Nb5 Kh6 Nc7 Nd7 b8N Nf6 Nd7 Qe1 Ne4 Qh4 Nf2 Qc8 Na8 Qh5 Ka4 Qd8 e8Q Bc5 Qe6 Qc8 Qe7 Rd8 Ne5 Ng8 Qd7 Ne7 Ka5 Kg5 Kb5 Qh7 Neg4 Kh5 Nh2 Kh6 Bf6 Bd4+ Kb4 Be3 Bd4 Qcc6 Qe6 Qe8 Qd7 Qeg8
6nk/1r2p1p1/1pKpP3/1Bn1B1bB/1Q1BP3/1qPBb2N/1n1P1r2/1N4nR w - - 0 2 illegal: No proof kernel forced: wxDB
1q1R2Q1/1r3npB/P1B1p2B/p7/Nk1pq1B1/3nb1nb/P2bP1P1/N4B1K w - - 0 3 illegal: No proof kernel
b1rR2Kb/1Bk1Pp2/P2R2R1/1Q2ppN1/P6R/2N1P2p/2n1p2R/q3rrn1 w - - 0 1 illegal: No proof kernel
Nq3NnK/n1b3B1/p1pk4/nR2qPrn/b5p1/P1P2rQ1/2r2NPN/2N4R w - - 0 1 illegal: No proof kernel
Nq4qR/2pn1PN1/P1P3qN/q2b2n1/1Q4RK/1P2n1RN/5n2/b2kB3 w - - 0 1 legal: proof: d4 f5 a4 e5 dxe5 h5 e4 a5 exf5 g5 h4 gxh4 b3 Rh6 Bb5 Rb6 Bc6 Rb5 axb5 Ra6 bxa6 b6 Ba4 b5 Bg5 bxa4 Bd2 Ba3 Bc1 Bf8 g4 Ke7 c4 d5 f4 a3 Kf2 h3 Kg3 a4 e6 Kd6 e7 Kc5 e8N Kb4 c5 d4 g5 d3 f6 d2 f7 a2 g6 h2 f5 a3 g7 h4+ Kh3 Be6 c6 Bd5 f6 Nh6 g8N Bg7 f8R Nd7 Qe2 d1N Bf4 Ne3 Qd1 Qb8 Nd2 Kc3 Bg5 Nf7 Qg4 Kc2 Nh6 Bh8 Rf1 a1Q Qb4 a2 Rg8 Qb1 Nc4 a1Q Rf4 Qa5 Ng7 Kd1 Nb6 Qd3 Rg4 Qg6 Ne8 Bg7 Bf4 Bh8 Bg3 Bg7 Be1 Bh8 Ne2 Bg7 Rhg1 h1N R1g3 Bh8 Nf4 Ng5+ Kh2 h3 f7 Be5 Na8 Ba1 Rh8 Nf2 Ng7 Qg8 Rg1 Qb8 Kg3 h2 Nh3 h1Q Kh4 Qhe4 Rg2 Qee8 R2g3 Qg8
4NN1K/1n1RRpp1/1r1P4/2nnRQPb/N1bn4/1B2rP2/4k2P/6rN w - - 0 1 legal: proof: d4 a5 g4 b5 b4 c5 bxc5 Ra7 a4 Ra8 g5 h5 Qd2 Qc7 Qf4 Qd8 Qg4 hxg4 Ba3 Bb7 axb5 Bc8 Bb4 axb4 c4 d5 c6 e6 c7 Ra4 c5 Ra2 c6 Ra8 e3 Bc5 dxc5 d4 Ra4 d3 Ra1 Qd4 exd4 Ra2 Nh3 Ra6 Ng1 Ra8 Kd2 Ke7 Ke3 e5 Ke4 Ke6 f3 b3 d5+ Ke7 b6 g3 b7 b2 Ra7 d2 Ne2 d1B Nbc3 b1R Na4 g2 Ng3 g1N Bc4 Ne2 Re1 Na6 b8N Bg4 Nd7 Rab8 c8Q Bh5 c7 Nd4 c6 Kd6 Nh1 Bb3 Nf8 Ne7 Qf5 Rb6 c8R Ra1 Re2 Rg1 c7 Ba2 Bb3 Nc5+ Ke3 e4 Kf4 e3 Re8 Nb7 c8N+ Kc7 Rd2 e2 Nd6 e1N Re2 Rh6 Re5 Nd3+ Ke4 Rg6 Rd8 Re6 Rd7+ Kb8 Ne8 Kc8 d6 Nd5 Ra5 Kb8 Rc5 Ka7 Rcc7 Ka6 Re7 Kb5 Rcd7 Kb4 Ng3 Nc7 Nh1 Na6 Kd5 Ndc5 Nb2 Kc3 Na4+ Kd2 Ng3 Rb4 Nh1 Nb5 Kc6 Nac7 Qg4 Nd5 Qh3 Nb6 Qf5 Nd4+ Kc7 Nd5+ Kc8 Na5 Kd8 Rb6 Bd1 Ra6 Re3 Re5 Ng6 Nf6 Re6 Re4 Ke7 Ng4 Kf8 Nf6 Ree7 Bc4 Bb3 Nd5 Kg8 Nab7 Nf8 Rb6 Kh8 Re5 Rc3 Re2 Rce3 Ke1 R3e6 Re3 Re5 Ke2
2brK3/n1Q3P1/1Nrb3N/1N2b3/Pq4P1/Pqrk4/2N4b/BRBbBn2 w - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 e5 cxd5 a5 b3 a4 bxa4 Ra7 d6 Ra8 e4 f6 d4 Na6 a3 Nb8 d5 Ra5 Ra2 Ra6 Rd2 Ra8 Rd4 exd4 e5 f5 Bd3 Kf7 Bc2 Ke8 Be4 fxe4 Ke2 Kf7 g4 b5 f4 h5 d7 c5 d6 Ke6 f5+ Kd5 e6 Kc4 f6 d3+ Ke3 d2 Kf4 h4 Kf5 b4 Kg6 e3 Kf7 h3 g6 b3 g7 b2 e7 e2 e8N e1B Nc3 b1Q Nb5 h2 Nbc7 Nc6 Nf3 Kd3 Rf1 h1R Nd5 c4 Ng1 c3 Rf5 c2 Ne2 Qb3 Rf1 R8h6 Nd4 Na7 Nc7 Ne7 Ncb5 Qa5 d8N R1h3 d7 Nf5 Ke8 Ne3 f7 Bd6 f8B Qab4 Nf7 Beg3 d8B Bh2 Bf6 Rb8 Rh1 Nf1 Nb6 Rb7 B8e7 Rg6 Nh6 Rd7 Qe1 d1B Qe5 Rg3 Bh4 Re3 Be1 Rf6 Qc5 Bde5 Qc7 Rc6 Bg5 Rh3 Bb2 c1B Ba1 Bcf4 Nc2 Bd6 Rg1 Bfe5 Rh1 Ke2 Bgd2 Rhc3 Bc1 Kd3 Bh4 Ng3 Bcg5 Bf3 Rb1 Bd1 Bc1 Nf1 Be1 Rd8+
r1N5/NR1PPP1k/nB1n4/3N2r1/1rQP1K2/bB6/rb1n1bN1/n3B1q1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b4 f5 Na3 h5 Nb1 f3 Ra6 f4 Rg6 Bf5 gxf5 Bc5 Rg3 Bf8 Rg4 hxg4 Kf2 Kf7 d4 a5 e4 c5 h4 g5 f6 Kg6 d6 c4 e5 c3 f7 c2 h5+ Kh6 e6 a4 d7 a3 b6 a2 b5 a1N b7 Qc8 b6 Rh7 Nh3 Na6 b8N Ba3 b7 Ne7 Nc3 Nf5 Qd3 Nd6 Bd2 c1B Nd5 Qg8 Qc4 Bcb2 Be1 Rg7 e7 Kh7 h6 Rg6 Nc6 g3+ Kg1 g2 Kh2 g1R b8N f2 Na7 g4 Nbc6 f3 Nhf4 Rg7 Nc8 Rg5 Ng2 g3+ Kh3 Qg7 N6a7 Qg8 Be2 f1N Bd1 f2 Bb3 Nd2 Kh4 f1R Rh3 Kg6 h7 Rf2 h8B Kh7 Be5 Re2 Bf2 Rb1 Be1 Nb7 Bb8 Nd6 Bc7 Qg7 Bb6 Qg8 Ngf4 g2 Rg3 g1B Ng2 Bf2 Kh3 Rge5 Rg6 Qg7 Kg4 Rg5+ Kf4 Rc1 Qc6 Rc4 Qc7 Rb4 Qc4 Qh6 Rf6 Qh1 Re6 Qg1 Rg6 Nb5 Rc6 Nd6 Rc7 Rh5 Rb7 Rf5+ Kg4 Rg5+ Kf4 N2e4 Nc3 Bc1+ Ne3 Ra2 Nd5 Nd2 Ng2 Bcb2
B4rB1/3R3R/P2B2Rb/1kN1p1QK/1n6/n1rPb1P1/rP5n/1q1R1bq1 w - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 hxg5 d5 cxd5 Qd6 Ba6 Qd7 Bf1 Qd8 a4 b5 a5 Nh6 Nc3 Ng8 Qb3 a6 Na4 bxa4 Qb6 Bh3 Qxa6 Be6 Qa7 Bc8 Ke2 Kd7 f4 h5 g6 e5 g3 h4 d3 e3 Kf3 h3 Kg4 e2 f5 e1R f6 a3 g7 h2 d6 Kc6+ d7 a2 f7 Na6 Ne2 Nh6+ Kh5 Nb4 g8B Ng4+ Bh7 Kb5 Bh6 c5 Bg7 c4 Qf2 c3 Qe3 c2 Rd1 c1B Qg5 a1N Bg2 Be3 Nc1 Nac2 Nb3 Na3 Nc5 Qb6 d8R Rg8 Bf6 Bh6 Rd7 Rf8 Be7 Re2 Bd5 Rc2 Bd6 Rc3 Bg8 Ra7 Ba8 Bb7 Rhf1 Bg2 Rf6 Bf1 Rg6 h1Q+ Qh4 Rb8 f8R Nh2 Rff7 Rf8 Qg5 Qg1 Rh7 Qc6 Bb8 Qe6 Bc7 Qa2 Bd6 Qb1 Rc1 Nac2 Rd1 Rc7 Nb7 Ra3 a6 Rcc3 Nc5 Ra2 Rdg7 Na3 Rb7+ Ka5 Rbd7 Kb5
1bn3k1/3R4/p4n2/2KnB1PN/1Pn2q1r/PnBB2b1/b3rRRP/2Q2R2 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 Nc6 f4 Nb8 dxc5 b5 c4 bxc4 g4 h5 g5 g6 Nc3 Kf7 Ne4 Ke8 Nf2 Na6 fxg6 Nb8 Ng4 hxg4 f5 Bg7 Be3 Bh6 Bc1 Bf8 Kf2 d5 Ke3 e5 b4 a6 c6 e4 Kd4 e3 g7 Kf7 c7 c3 f6 e2 a3 e1B Bg2 g3 Rb1 c2 Qd3 Bd6 Qe4 Nc6+ Ke3 d4+ Kd3 Qf8 Kc4 d3 Qe3 d2 Nh3 d1N Bf1 g2 Bd2 c1N Bc3 g1N Bd3 Beg3 Rb2 Nce7 Nf4 Rh4 Rf2 Nge2 Rhf1 Nb3 Qc1 Bf5 c8R Bb8 Rd8 Nc8 Rg2 Nb2+ Kd5 Bg4 Nh5 Nf4+ Kc6 Nc4 Rd7+ Qe7 Rff2 Nd5 Be5 Be6 Bc3 Nh6 g8R Ng4 Rg6 Kf8 f7 Qf6 Rh6 Qf4 Rf6 Qe5 R6f3 Ngf6 Rf1 Qf4 R3f2 Na1 Kc5 Ra7 Rd6 Re7 Be5 Bh3 Bc3 Re2 Be5 Be6 Rd8+ Ke7 f8B+ Kf7 Rd7+ Kg8 Bg7 Bg4 Bg6 Bf5 Bh8 Bb1 Bd3 Ba2 Bc3 Ng4 Bhd4 Ngf6 Be5 Nb3+
1R1Q4/3PR1B1/1nR3r1/rpR2n2/1nPP3N/r3n2P/1b1q3K/nB1B1kb1 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 d5 exd5 c5 b3 c4 b4 axb4 f3 e5 Nc3 e4 Nb5 e3 Nd4 Bf5 Nb3 Be4 fxe4 cxb3 a4 Ke7 c4 Kf6 e5+ Kg5 d3 Kh4 h6 g5 e6 f5 a5 b5 d6 e2 Kf2 e1N d7 f4 h7 f3 a6 g4 a7 g3+ Ke3 f2 Kf4 g2 h3 b2 Qf3 b1N Bd2 b3 Ra4 b2 Ra6 Ba3 Qd5 Nh6 Bc3 Nf5 Bg7 Nc3 Rc6 b1R Be2 f1N Bd1 Nc2 d4 Rb3 e7 Qa5 e8B Na4 Qg8 Na1 Bg6 Na6 Qb8 Rf8 Qd8+ Rf6 Rh2 Bb2 h8R+ Nh6+ Bf5 Ne3 Rh7 Nb6 Nf3+ Kh5 Kg3 g1B Bd3 Ra3 Re2 Qd2 Nh4 Nb4 Bb1 Ra5 Rh8 Re6 Re8 Rd6 Re5+ Nhf5+ Kf3 Rg6 Rec5 Ng4 Kg2 Ne3+ Kh1 Ra3 Qb8 Kg5 Qd8+ Kf4 Re1 Kg3 Re2 Rc8 a8R Rc7 Rb8 Rca7 Re1 R7a5 Re2 Ng2 Re7 Kf2 Qc8 Kf1 Qd8 Be3 Kh2 Bf2 Rce6 Nge3 Rec6 Bg1+
1b4Bk/2N1qP1r/3KQ2P/1BN1n2B/1Bq5/1nn4P/1Prpn2n/N4b1R w - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 axb5 h5 gxh5 e5 Nf3 Ke7 Ng1 Kd6 Qd3 f5 Qf3 f4 Ra3 e4 Rd3 exd3 Qxf4+ Ke6 Qf7+ Kd6 Kd2 Ke5 e4 g5 c4 a5 c5 d5 c6 g4 c7 g3 b6 g2 h6 a4 b7 a3 f3 a2 Nc3 a1N Nb5 Bh3 c8B Bd6 Be6 Rh7 Ne2 g1N Nc7 Nd7 b8N Qe7 Nba6 Rc8 Nc5 Ngf6 Qe8 Ng4 f4+ Kf6 f5 Nde5 Bg8 Bg2 h3 Nh2 Qc6 Kg5 f6 Kg6 N7a6 Bc7 Qe6 Bb8 Nc7 Nb3+ Ke1 d2+ Kf2 d1Q Kg3 d3 Kf4 d2 Nd4 Bf3 Bb5 Bg2 Nc2 Qe2 Na1 d1N Bd2 d4 Be1 d3 Bb4 Nd7 e5 d2 Bc6 Qa6 Bb5 Bf1 Ke4 Qa4 Kd5 Nc3+ Kc6 Qf7 Kd6 Nge2 Qe7 Qa2 e6 Ne5 Qd7 Qa7 e7 Qc4 Qe6 Rg7 Bf7+ Kh7 e8B Kh8 Bg8 Rh7 Bh5 Nbc1 f7 Qh4 Nb7 Qa6+ Bc6 N3a2 Kc5 Qf6 Na8 Nb3+ Kd5 Rc7 Kd6 Qb5 Be8 Rc2+ Nc7 Qc4 Bb5 Nac3 Nc5 Qe7+
B1r2Q1B/1b1n2n1/2nNr3/3q2bP/2PP3p/1q1q2Nn/2NB1B1P/1k3K1R w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 h5 c4 h4 g4 Qa5 Ra3 d5 axb5 d4 Rc3 dxc3 Ke2 cxb4 Ke1 Qb6 Qf3 Qh6 Qd1 Qh5 gxh5 Kd7 Be2 Kd8 Bf1 Ke8 d4 Kf7 f4 Kf6 b6 e5 b7 g5 Qf3 a5 Qg3 a4 Qg2 a3 Kf2 e4 Be3 g4 Nh3 g3+ Ke1 a2 Qe2 a1Q Qg4 b3 Nf2 c2 Nh3 c1Q+ Qd1 b2 Nd2 b1Q Be2 g2 Ng5 g1N Kf2 Qcb2 Qf1 Nc6 b8N Qb3 Bd1 Nge7 Nf7 Bb7 Na6 Qa5 Nb4 Rh6 Nd6 Qd5 Bf3 Rc8 Nc2 Nh3+ Kg2 Bg7 Bf2 e3 Be4 e2 Bf3 Bf8 N2e4+ Kg7 Ng3 Re6 Be4 Kf6 Bf3 Qd3 Be4 Qbb3 Bf3 Kg7 f6+ Kh6 f5 Kg5 f7 Kf4 f6 Nf5 Be4 Bh6 f8B Bg5 Bh6 Ng7 f7 Rc7 f8B Rc8 Rg1 e1N+ Kh1 Nf5 Bfg7 Nf3 Kg2 Nfe5 Rh1 Nd7 Bh8 Ng7 Qc1+ Qd2 Qa3 Qdd3 Qa8 Rc7 Qd8 Rc8 Qf8+ Qf5 Be1 Ba6 Bb4 Na7 Ne1 Ke3 Qe8 Bf4 Ba8 Nc6 Qf8 Bb7 Bg5 Qbc3 Ba5 Kd2 Nc2 Qb4 Bh6 Kc3 Bg5 Kb2 Bh6 Qb6 Be1 Kb1 Bf2+ Bc1 Bf4 Qbb3 Bg5 Qe3 Kf1 Qd5 Bd8 Qef3 Ba5 Bg5 Bd2 Qfd3+
r2K1R2/qN1R1Pk1/1N4Pp/RrPbNn2/1n1bNB2/1Qr4P/b7/2b2q2 w - - 0 1 illegal: No possible last move
2q1r1RR/1PN1NNbQ/1b1p4/1B1R4/qN4r1/1q4P1/r1rnPK1P/kn6 w - - 0 1 illegal: No extended proof kernel
1N1R4/nP1P1P1Q/2p1B1Kb/3rRP1B/b4k2/4qn1R/3n1B1n/1Br3nn w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Nf6 c4 dxc4 Nc3 Ba6 Nd5 Bb7 axb5 Bc8 b6 Ng8 b5 Nf6 Nb4 axb4 Rh2 Ng8 Rh4 Na6 Rh1 Nb8 Ke2 Kd7 Ke3 Kd6 Kf4 h5 g4 h4 d4 c6 g6 b3 Kg5 e5+ f6 c3 f4 e4 g7 h3 d5 e3 b7 c2 f5 Ke5 d6 e2 b6 e1N Bd3 b2 Be3 c1N Bf2 b1N Kg6 h2 g5 Ne2 Ra5+ Kf4 Nf3 Nh6 g8B Qe7 Bf7 Na6 b8R Be6 b7 Ng1 Re5 Nd2 Rd8 Nc7 Bb1 Ng4 Qe2 Qe8 Qf1 Ra2 Qh3 Nb5 Qh7 Bb3 Rc5 Ne4 Qh4 Ra8 Ne5 Qe7 Nd7 Ra5 Bc4 Nh3 Be2 Nd2 Nb8 Ba4 d7 Qe3 Re5 Na7 Qh6 Rd5 Qg7 Rh4 Qh7 Nh6 Bh5 Ng4 Kf7 Bh6 g6 Nef3 g7 Nhg1 g8B Ne2 Kg6 Rh3 Re6 Rg3 Ree8 Rg1 Re5 Rc1 Be6 Neg1 f7 Nh3 Rg1 h1N Rg3 Nhg1 Rh3 Ngh2
N2NKBn1/3r3p/1p2R3/b2Bq2n/b3P1Nk/r1BPqq1P/3N2P1/1n4Q1 w - - 0 1 legal: proof: a4 b5 axb5 Bb7 b6 Bc8 b7 Nc6 Ra6 Nb8 Ra3 Nf6 Ra1 Ng8 b4 g5 f4 Nf6 b5 Ng8 b6 cxb6 fxg5 e5 c4 d5 Kf2 e4 Ra2 Qd6 cxd5 Qd8 d3 e3+ Kf3 Qe7 Rd2 exd2 Kf2 Qd8 Kf3 Ke7 Ke4 f5+ Ke5 a5 d6+ Kf7 d7 Kg6 Ke6 Kh5 Kf7 a4 g6 f4 h3 a3 g7 a2 Bb2 a1Q Nf3 Ba3 Bc3 Bb4 Ne5 f3 Ng4 Qg5 d8N f2 Ke8 Nd7 b8B Ra3 Bd6 Kh4 Bf8 Ba5 e3 Bb7 Be2 f1Q Bf3 Bc6 Bd5 Qf3 Qg1 d1N Nd2 Ba4 e4 Nh6 g8N Qge3 N8f6 Ng8 Ba8 Qb2 Nd5 Qb5 Nc7 Ndf6+ Kf7 Qe5 Bd5 Qfe2 Na8 Nh5 Bb2 Nc3 Ba1 Bc2 Bb2 Nb1 Bc3 Q5g5 Ke8 Q2f3 Qh2 Qgf4 Rc1 Qb8 Qg1 Qd6 Ba1 Ba4+ Rc6 Qc7 Bc3 Qe5+ Be6 Ne7 Ba2 Rg8 Bb3 Rg7 Bd5 Ng8+ Ne6 Qc7 Nd8 Rd7 Re6 Qe5
1q1k1BQ1/1Pp3b1/2P2q2/2BpNn2/2bN1PP1/1RnB4/rB3KNq/3q1r2 w - - 0 1 legal: proof: d4 b5 a4 g5 axb5 e5 dxe5 f5 e3 f4 exf4 Bb7 Ra4 Ba6 Ra1 Bc8 f3 g4 Be3 gxf3 Bd2 Ba3 Bc1 Bf8 g3 h5 g4 h4 b4 Na6 Ra3 Bd6 Rd3 Be7 Rd2 Nb8 Rg2 Bf8 Rg3 hxg3 c4 a5 h4 g2 e6 d6 e7 a4 c5 a3 b6 a2 b5 a1Q h5 Be6 h6 Qd7 h7 Qf6 c6 Na6 b7 Qc8 b8B Qh6 b6 Qf6 b7 Qa1 Bb2 Nb4 Nc3 Nc2+ Kf2 Bc4 Ba7 Bg7 Nce2 Nh6 Rh3 Nf5 Qd5 Qd8 Nd4 Na3 Bd3 Nb1 Bc5 Nc3 Qe6 d5 Qc8 Rg8 h8B Ra2 Qe6 Rf8 Qg8 Qb8 Rg3 Bh6 Be5 Bg7 Bed6 Qd1 Nc2 Qa1 Ne2 Qd1 Ne3 Qa1 Qe6 Rh8 Nd4 Rh1 Qc8+ Kf7 e8N Rd1 Be5 Rc1 Nd6+ Ke7 Qg8 Rb1 Ne8+ Kd8 Bed6 Re1 Bf8 Rd1 Nd6 Re1 Ne2 Qd1 Bb1 Qd4 Bd3 Qf6 Nc8 Rg1 Nb6 Re1 Nd7 Rg1 Ne5 Rh1 Nf1 g1Q+ Ke1 Qh2 Nd4 Ne4 Rh3 f2+ Ke2 Rg1 Ne3 Rga1 Ng2 Nc3+ Kd2 f1Q Rg3 Ne7 Ke3 Qd1 Kf2 Nf5 Qe6 Ne2 Bc2 Qb1 Rb3 Nc3 Qg8 Qc1 Bd3 Qc2+ Be2 Qd3 Bf1 Re1 Be2 Qd1 Bd3 Rf1+
r1n2R1B/2P5/3rPq1p/4rp1k/N1Rnb2N/2RR1P1r/1P1n1K2/2r1QN2 w - - 0 1 legal: proof: a4 b5 axb5 c6 bxc6 e5 d4 exd4 h4 g6 h5 Bd6 h6 Bf8 g4 Bb7 g5 Ne7 Bh3 Bg7 hxg7 Nc8 g8N Ne7 Bg4 Bc8 Bh5 gxh5 g6 Nd5 g7 Nf6 c4 a5 e4 d5 e5 h4 c7 h6 f3 a4 c5 d3 c6 d2+ Ke2 d4 Ra3 d3+ Ke3 h3 Qb3 d1R Qc4 h2 Qd4 d2 Qg4 Nbd7 Qb4 Bb7 c8R Nb6 Ne7 Ne4 Ne2 f5 g8R+ Kf7 Ng6 Qf6 Rc3 a3 Nh4 a2 Ng3 a1N Nf1 Nb3 Rgf8+ Kg7 c7 Nd4 Rcd8 Nc8 e6 Ra5 Rc4 Re5 Nc3 Kh7 Rg1 h1R Na4 Rh3 Rg2 Re1+ Re2 d1R Bd2 Rg8 Bc3 Nd2+ Kf2 Be4 Re3 Rc1 Rd6 Rd5 Rdc6 Rd6 Rd3 Rh8 Ng2 Kg6 Nh4+ Kh5 Qa5 Nc2 Be5 Nd4 Rcc3 Rh7 R6c4 Rhd7 Qb4 Ra6 Qa5 Rdd6 Qb4 Ra8 Qa5 Qg6 Bh8 Qf6 Qe5 Bb7 Qe2 Bc6 Qd1 Re5 Qe1 Be4
4R3/k3bbrP/1r1R1B2/1R2PP1p/nn1rPK1R/1QnbnB2/B5p1/5N2 w - - 0 1 illegal: No proof kernel
3K2rN/pP2r3/2R1b2k/1b1p4/BP2nP1B/1r2r1b1/n1NQb1P1/3B2BN w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 f4 c5 b4 g4 d4 cxd4 Ra3 Bb7 exf5 Bc8 Rf3 gxf3 h4 Qb6 Qe2 Qf6 Qd1 Qg5 hxg5 Bg7 Rh2 Bh6 Rh1 Bf8 Kd2 Kf7 Kd3 Kg7 Kc4 e5 Kd5 h5 c4 d3 f6+ Kh7 c5 e4 g6+ Kh6 f7 f2 b6 e3 g7 h4 c6 h3 b7 e2 c7 e1R Na3 h2 Qd2 Bc5 f8B Na6 Nh3 Re3 Nc2 Rh7 Be2 f1B Nf2 d6 Kc6 d5 Bd1 Be6 c8N Nf6 Nd6 Ne4 Be7 Nc7 g8B Nb5 Bf7 Rg8 Bh4 Nbc3 Kc7 Na2 Bb2 Be2 Bd4 Rhg7 Re1 h1R Rg1 Rgg3 Be8 Rhh3 Kd8 R3g7 Nh1 Re7 Qc3 d2 Nf7+ Kh5 Nh8+ Kh6 Re1 Bb5 Qb2 Rb3 Bg1 Bf2 Re3 Rhg3 Rc3 Re3 Rc6 Be1 Bf3 d1B Qd4 Bde2 Qd2 Bf1 Bd1 Bg3 Rc5 Rg4 Bd7 Bbe2 Ba4 Bb5 Rc4 Be2 Rc6 Rg8+
q5KR/k7/1p3qpB/2P4r/1r3rRP/1PP1R1rQ/3b1q1n/B2r1NRB w - - 0 1 legal: proof: f4 e5 d4 exf4 a4 c5 dxc5 b6 g4 Qf6 a5 Qe7 a6 Bb7 axb7 Qd8 Kd2 h5 Ke1 f5 Nc3 f3 Nd5 f4 Ne3 Nc6 Ra2 Nd4 Ra1 Nf5 gxf5 Ne7 Ng4 hxg4 Ra5 Ng8 Ra6 Rh3 Ra1 Rh8 Kd2 a5 Kd3 d5 Kd4 Kd7 Ke5 Kc7 Ke6 Kb8 Kf7 g3 h4 g6 e4 g2 b3 f2 f6 a4 c3 d4 e5 d3 e6 d2 e7 a3 e8R f3 Rh3 a2 Be2 f1R Re4 f2 Bf3 Ka7 b8R Rh5 Bb2 Bh6 Ne2 g1R Bh1 Rg3 Rg4 Bg5 Kg7 Nh6 f7 Qf6+ Kh7 Be3 f8B Bf4 Qc2 d1R Qd3 Bd2 Rb1 a1Q Rc8 Qa6 Ba1 Qa4 Bg7 Qac6 Rh8 Re8 Qf5 Qa8 Qf3 Re4 Qd3 Rg2 Re3 Rb4 Ng3 Rgg1 Rg5 Ng4+ Bh6 Nh2 Rg4 Rfe1 Qf5 f1Q Rc1 Qe2 Nf1 Qf2 Qf3 Re2 Qh3 Rg3 Rb1 Qe1 Rc1 Rf2 Rb1 Rff4 Rc1 Qe4 Kg8 Qf2 Rb1 Re1 Rc1 Rg2 Ng3 Rgg1 Rc2 Rb1 Rc1 Qef3 Rce1 Rd1 Rf1 Rg2 Rg1 Q3c6 Nf1 Rg3 Bf3 Qe4 Bh1 Qa8+
k1rqb3/3p3N/1BpNqq2/nrq1P3/q1P3R1/NQ1P4/1P2K3/2N2BBq w - - 1 2 legal: proof: f4 e5 a4 exf4 g3 a5 Nc3 b5 axb5 a4 Nb1 a3 Ra2 f3 Ra1 a2 Na3 Ne7 Bg2 Ng8 Rb1 a1Q Bf1 Qxb1 Kf2 g5 Ke3 f5 Kd4 f2 Kc4 f4 Kc3 f3 Kb3 Bd6 Kc3 Bf4 gxf4 Nc6 h3 Ne5 h4 g4 Nh3 Nf7 Ng1 Ng5 hxg5 Ba6 Nh3 Bb7 Ng1 Bc8 Kd3 h5 e4 g3 g6 h4 f5 g2 f6 h3 e5 h2 g7 Ba6 Nc4 Qa1 c3 Rb8 b6 Qa4 b7 Ne7 g8N Nc6 Qb3 Na5 Nh6 c6 Ne2 g1Q Nf7 Qg8 Rg1 h1Q Ke3 Qg4 d3 Qe6 Na3 Bc4 Rg4 Bd5 Bg2 f1Q c4 f2 Bh3 Rc8 b8B Qfg1 Ba7 f1Q+ Kd2 Be4 Bb6 Qc5 Bg2 Qf3 Bf1 Bg6 Ke1 Qf4 Be3 Bh5 Nc1 Rb8 Ba7 Rb5 Bb6 Qg5 Bg1 Rf8 Nh6 Bg6 f7+ Ke7 Qc2 Qgf6 Qb3 Rg8 f8N Be8 Ke2 Qa8 Rf4 Bf7 Ba7 Kd8 Re4 Kc8 Bb6 Kb8 Nh7 Rd8 Rh4 Be8 Nf5 Kb7 Rg4 Qc8 Nh6 Ka8 Nf7 Qc7 Nd6 Rc8 Kd2 Qcd8 Ke1 Qf4 Ke2 Qff6
q1k5/n1b1Q1BN/Rr4p1/nr2bK2/3R2Pp/4pBrP/1rB1P1P1/B2R4 w - - 0 1 illegal: No possible last move, all moves rejected
4Nq1q/P2B2nN/5NKp/3R1Pr1/Pr5r/N2p3B/P5np/3nQbBk w - - 0 1 illegal: No proof kernel
2n5/1RQbPr2/1pP1Bb1B/NnPRB2P/4k2p/Rbr4n/2b2p2/4K1B1 w - - 0 1 illegal: No possible last move, all moves rejected
3K4/1q1NP3/2p1nBq1/PNpBP1pk/1RBp4/1q1B3b/N2q2PQ/n3b3 w - - 0 1 legal: proof: h4 g5 e4 a5 b4 b5 bxa5 h6 a4 d6 d4 Ba6 f4 Nf6 c4 Rg8 c5 Bc8 f5 Rg6 h5 Ng8 hxg6 h5 Ra2 Ra7 Rd2 Ra6 d5 e5 Rd4 exd4 e5 dxc5 Rh3 Bb7 Rh1 Re6 fxe6 Bc8 Kd2 f5 Kd3 h4 g7 b4 Kc4 b3 Kb5 b2 d6 h3 a6 h2 a7 f4 a8B f3 Ne2 f2 Rg1 h1Q Nbc3 Ne7 g8B Na6 Bd2 Qh3 Na2 Nf5 Kc6 b1Q Ba5 Ng7 Nec3 Qg6 Qh5 Qe7 Nb5 Qb3 Bd3 f1Q Qh2 Qe2 Rb1 Qd2 Bb6 Qef7 d7+ Ke7 d8N Ke8 Ra1 Be7 Rb1 Bd7+ Kb7 Nb4 Nc6 Nc2 Nb8 Na1 Rb2 Bc8+ Kc6 Bd8 Nd7 Qbc2 Rb4 Qb3 Nf8 Bd7+ Kb7 Qf3+ Kb8 Qff7 Bd5 c6 Bc7 Bc8 Nd7 Qe7 Bd6 Ba5 Bc7 Qef7 Bb6 Ke7 Bd8+ Ke8 Bf6 Qe7 Nb6 Qd7 e7 Ne6 Bh7 Kf7 B3c4 Qgb1 Bhd3 Qe8 Bf1 Kg6 Nd7 Qf7 Qg1 Kh5 Qh2+ Qh3 Bfd3 Qg6 Rb3 Bc3 Rb4 Qb3 Qf4 Qhe3 a5 Qdb2 Qg3 Be1 Qf4 Qed2 Qg3 Ng7 Kc7 Qb1 Kd8 Q1b2 Nb8 Bh3 Nd7 Qb1 Qh2 Q1b2 Nbc3 Qb1 Ra4 Qb7 Rb4 Qb3 Nb5 Ne6+
1R1nRb2/p1P1NB1K/kB4pQ/7p/P3nppp/r1q1Pn2/P4B2/6BR w - - 0 1 illegal: Other
k1b2N2/p3rrb1/P1r1n3/4PbqB/1KP2N1b/1B1Q1RnP/1B4b1/3n2NN w - - 0 1 legal: proof: d4 c5 g4 f5 a4 fxg4 b4 h5 bxc5 e5 Ra3 h4 Rg3 hxg3 dxe5 Rh6 Nf3 Rh4 Ng1 Rh8 Kd2 d5 Kc3 Kd7 e4 Kc6 f4 b5 h3 Kb7 f5 g5 a5 g2 f6 b4+ Kb3 d4 c4 g3 f7 g4 e6 d3 e7 d2 e8B Nh6 e5 Nc6 Nf3 g1B Bg2 Bf2 Bb2 Rh7 Nh4 Qg5 Nf3 Nd8 Bf1 g2 Nc3 g1R Qb1 d1B+ Qc2 g3 Ne2 g2 Ka4 b3 Bd7 Bg7 f8N Bh4 Qd3 Nf5 Nf4 Ne3 Kb4 Ne6 Be2 Rf1 Ba4 g1N a6+ Kb8 c6 Rf2 Bf1 Ne2 Ng1 Ng3 Be2 Rh6 Bg4 Bf3 Bh5 Nd1 Rh2 Rf1 Rf2 Bg2 Rf3 Rg6 Bd4 b2 Bb3 b1B Bb2 Nf5 Nfe2 Rf6 Ng3 Rf7 Nh1 Re7 Qc3 Ng3 Qd4 Bf5 Qd3 Bb7 c7+ Kc8 Qe2 Bc2 Rc3 Rff7 Rf3 Bf5 Qe4 Rb8 Qd3 Ba8+ Ka3 Rb6 Ka4 Rc6 Kb4 Bb7 Ng6 Nd4 Nf4 Kd7 c8N Kc7 Nb6 Kb8 Nd7+ Ka8 Nf8 Bbc8 Bc3 Ne6 Ba1 Nd8 Bb2 Ne6
1N4qB/1P1B4/2n1r3/4Nb2/KR2pP1N/NP2qbbk/Qr2P3/qbnB3b w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 Bg7 Ra4 Bh6 hxg5 Bf8 g6 Bb7 g5 Bc8 Ra3 cxd4 Rg3 Na6 Rg2 Nb8 Rg4 fxg4 Kd2 e5 c4 Ke7 Kc2 Ke6 Kb3 Kf5 f3 d5 b6 a5 c5 h5 c6 h4 b7 d3 c7 d2 g7 g3 g6 g2 Qe1 d1B+ Kc3 d4+ Kc4 h3 Kb5 d3 b3 d2 Nc3 h2 Na2 a4 Qh4 a3 Bb2 Nd7 Nc3 a2 Qa4 a1Q Qa2 Ne7 g8B Rh6 g7 Nc5 Nb1 Nd3 Na3 Nc1 Bh7+ Kf4 g8N Kg3 Bb1 Bg4 c8N Re6 Nf6 Bc2 Nd7 d1B Na7 Nc6 Nb8 Bd6 Ka4 Bcf5 Bc2 e4 Bh8 Qg8 f4 Bc5 Nf3 g1Q Bh3 Qe3 Nh4 Bf3 Re1 h1B Rg1+ Kh2 Rg6 Bb4 Bg4 Be1 Rf6 Bg3 Rg6 Na5 Nac6 Ra7 Ne5 Nc6+ Na6 Ra8 Bh3 Rd8 Nb8 Rd2 Bg4 Re8 Rd6 Re7 Rd4 Re6 Bd3 Rb2 Rb4 Bc2 Bh3 Bb1 Bc2 Qg5 Bd1 Qg8 Bg4 Rg6 Bh5 Rh6 Be8 Re6 Bd7 Kh3
2b5/Nq1r2Q1/KPN1RB2/5qR1/kP1nn1nr/1Rb1P2p/3nN1rP/5bR1 w - - 0 1 illegal: No possible last move, all moves rejected
1N4rq/B1b2n1B/3PN1p1/b1r1r1P1/1N1BN1QP/5Rn1/1r1Pb3/K1k1qn2 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 e5 c4 Rh6 cxd5 Rb6 f4 exf4 g5 Rh6 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 e4 Kd7 h4 Kd6 b6 Ke5 b7 Kd4 e5 c5 e6 a5 b5 f5 b6 g6 e7 c4 e8N f3 Ba3 g3 Qc1 a4 Kd1 f2 Kc2 c3 Qd1 g2 Bb2 f4 Qf3 a3 Qh5 f3 Bc1 a2 Ba6 f1Q Bb2 a1R Bc4 f2 Qh7 R1a2 Bb5 Nd7 b8N Ndf6 b7 Nh6 Qc7 Bb4 d6 Ne4 Ng7 Qe1 Na3 f1N Ba4 Bg4 Rh3 Be2 Qc8 Ra5 Bb3 Re5 Rf3 Ba5 Bg8 Nf7 Nh3 g1B Bh7 Neg3 Nf2 Qf6 Qe6 Rg8 Ne4 Be3 Kb3 Kd3 Qg4 c2 Ne6 c1R Nc2 Qh8 Bc3 Rb2+ Ka3 Kc4 Nb4 Beb6 Bd4 Rcc2 N8a6 Bd8 b8B Bdc7 Bba7 Rc1 Nb8 Rcc2 Na2 Rc1 Rf5 Kd3 Rf3+ Kc2 Nb4+ Kb1 Bc3 Rbc2 Bcd4 Rcc5 Kb3 R1c2 Ka3 Kc1 Kb3 R2c4 Ka2 Rc2+ Ka1 Rb2
1B5b/P3pbQ1/1r1BP3/bRP4K/rr2n1BR/1Nn1bP2/1k6/1qn2RBq w - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 Nc3 c5 dxc5 Ra4 Ne4 f5 gxf5 Ra8 Nf6+ Kf7 Ng4 hxg4 Bg5 Ke8 Bd2 Ra7 Bc1 Ra8 a4 Kf7 e4 Kf6 Ke2 Ke5 c4 d5 h4 b5 h5 g5 f3 b3 f6 g3 h6 g4 f7 b2 a5 b1R a6 b4 h7 b3 c6 d4 c7 d3+ Ke3 b2 Bd2 g2 Rh4 g3 Qc1 Be6 c8R Bg7 f8B Nd7 Rb8 Nc5 Ba5 d2 Bb6 Nb3 Qc2 Nf6 Ne2 Nc1 Nd4 Bg8 Nb3 d1Q Qf2 g1B Bh3 g2 Bg4 Qf1 Bc5 Qdd1 Rb5 Bh2 Qe1 Qh1 Qg1 Bf4+ Kf2 Bd2 Kg3 Ba5 a7 Rb8 Ra3 Rb6 Ra1 Nd7 Bb4+ Nc5 Ba3 Bf6 Bh6 Qf1 Be3 Bg7 Qf2 g1B Qg2 Bf6 Bd2 Bd4 Be3 Qd1 Bg1 Be3 Rh3 Bg7 Kh4 Bf6+ Kh5 Qd3 Nd2 Kd4 e5 Kc3 e6 Ne4 Bd6 Qc2 c5 Qd1 Ra2 Ra1 Qg3 b1N Nb3 Bfd4 Rf2 Ra4 Rf1 Kb2 Qe5 Nbc3 Rh4 Qd3 Qf6 Qb1 Qg7 Bf7+ Qg6 Rhb8 h8B Bg8 Bhe5 R8b7 Bg3 Bh8 Qg7 Rd7 Bb8 Rdd4 B3h2 Rdb4 Bhd6 Bf7+
NK1b2B1/BP2n2p/1qN4q/PPBB3P/q2nNR2/qr1b3Q/1kr5/4br2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 f5 g4 fxg4 cxb5 Ke7 Bg2 Kf7 Bf1 Ke8 b4 a5 a4 Na6 b6 Qh4 b5 Nb8 Ra3 Qg5 Rb3 Qd8 Rb4 axb4 Kd2 Ke7 Ke3 Ke6 Ke4 d5+ Kf4 g5+ Ke3 c5 h4 c4 Kd4 b3 e4 b2 f4 c3 h5 c2 b7 g3 a5 g4 Nd2 b1R Rh4 g2 Be2 g3 Bf3 Qf6 Qf1 Qh6 Ne2 Ne7 Kc5 d4 Kb6 g1Q Kc7 d3 Bb2 c1B Bd4 g2 Ba7 Qe3 Qh1 g1Q Qh3+ Nf5 Bh1 Nc6 Bg2 Rb3 Nd4+ Kf7 e6+ Kf6 Bh1 Nfe7 f5 Ke5 f6 Bg7 f7 Rf8 Rf4 Bf6 Bg2 Bb2 Bf3 Bc3 Bh1 Qa1 Bg2 Qa3 Bf3 Ng8 e7 Bf5 e8B Nge7 Bd7 Rad8 Be6 Rd5 Bh1 Rc5 Bd5 Bb4 Bg2 Rc2 Be6 Rg8 f8B Rg5 Bh1 Rg1 Bg8 Rf1 Bg2 Ng6 Bfc5 Nge7 Ne2 Nd4 Kb8 Ne6 Nd4 Qg1 Nb1 Be1 Nc3 d2 Bf3 d1Q Bh1 Bfh4 Nc6+ Kf6 Bg2 Nd4 Bf3 Qda1 Bh1 Qa4 Bg2 Q1a3 e5+ Kg5 e6 Kf6 Bd5 Qgg6 Nd8 Ke5 Ne4 Qf6 Nd2 Bd3 Ne4 Nef5 e7 Qb6 e8N Ne7 Nc7 Bg5 Bdf7 Bf6 Nce6 Kd5 Nc6 Kc4 Nc7+ Nd5 Nd6+ Kc3 Na8 Kb2 Ne4 Bd8 Be6 Ne7 Bef7 Ka1 Bd5 Kb2
1r1bn3/b7/b3p1BN/1B4RP/qkP1PN1n/6qN/r2Kn1PB/BrQ2b2 w - - 0 1 illegal: No proof kernel
1kBb1b2/1B4BK/2p1q2n/2P1r3/1P1Bn2r/NRb3Qb/4nP1P/b3bR1R w - - 0 1 illegal: No proof kernel
6K1/1QpbnNP1/nn3bB1/kNPB4/Nr3N1n/2Rrbb2/P4PqB/b7 w - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 d5 exd5 f5 b4 axb4 Na3 Na6 Rb1 Nb8 Rb3 Bh6 Re3 Bf8 Re4 fxe4 Ke2 Kd7 Ke3 b5 Kf4 h5 Kf5 e5 Kg6 e3 Kf7 b3 g4 b2 d4 b1N c4 b4 g6 h4 c5 e2 d6 Kc6 g5 e1B g7 h3 d7 b3 g6 h2 Bb2 e4 Nb5 e3 Qc1 e2 Ba1 b2 Nc3 Bd2 Nd5 Kb5 Nc3+ Ka5 d5 e1B d6 Be7 Na4 Bf6 Nf3 Nc3 Qb1 Rh4 Nd4 Nd5 Bd3 Nge7 g8B Be3 g7 Nb6 Nb5 Na6 Bg6 Bec3 Rc1 h1B Rc2 Bce5 Rc3 Rb4 Qe4 b1N Qb7 Rb8 Bb2 Bf3 Bc1 Beg5 Bf4 Nd2 Bh2 Bgf4 B8h7 Qh8 d8N Bd7 Ne6 Be3 Nf4 Rd8 Be4 B5d4 Bhg6 Qh3 Bd5 Qg2 Rc4 Bf5 d7 Ba1 Rc2 Bh5 Rc3 Nf3 Rb3 Nh4 Rc3 Rb8 d8N Bf3 Kf8 Bc8 Kf7 Bd7 Kf8 Be8 Nf7 Rd8 Bc4 Rd3 Bd5 Nef5 Kg8 Ne7+ Kh7 Bd7 Kh8 Nef5 Kg8 Ne7+
2k2K2/B4r2/1nB1N1q1/6qP/2q4R/rPrPrpbR/1RnB1P2/2Q1qbB1 w - - 0 1 legal: proof: g4 b5 c4 h5 a4 hxg4 axb5 d5 cxd5 e5 d3 e4 Kd2 e3+ Kc2 Bc5 Nd2 exd2 Nf3 Be7 Ng1 Bf8 Kb3 Kd7 Kc4 g5 h4 c5 e4 f5 d6 a5 Kd5 a4 b3 c4 h5 c3 b6 f4 e5 g3 b7 g2 Qe1 d1Q Bb2 f3 Ne2 g1Q Rb1 a3 Nc1 c2 Qb4 a2 Bc3 a1Q Ne2 c1R Qb5+ Nc6 b8B g4 Rb2 g3 Bd2 g2 Nf4 Qa6 Qc4 Rh7 Bc7 Rf7 e6+ Ke8 e7 Kd7 e8R Nd4 Kc5 Nf6 Re4 Nd5 Bb8 Qa4 Rh2 Ra6 Ba7 Nb6 Qc3 Bg7 Qc2 Be5 Qc3 Ke8 d7+ Ke7 Qc2 Qg8 d8B+ Kd7 Bc7 Qg6 Bcb8 Kd8 Rh1 Bh3 Bc7+ Kc8 Qc4 Bf6 Kd6 Ra5 Qc2 Qc4 Qb1 Rc3 Qc1 Nc2 Bcb8 Rb7 Bc7 Bd4+ Ke7 Be5 Kf8 Ra3 Bcb8 Qh2 Rd4 g1R Bg2 Qhg3 Re4 Bd7 Bh3 Re1 Be6 Qg1 Bd5 Q1g5 Bc6 Bh3 Ne6 Re3 Rh4 Bf1 R1h3 Qe1 Bc7 Bh8 Bf4 Be5 Bh2 Bg3 Bg1 Rf7+
1R6/1p4N1/rbB1qr2/rRNb2Q1/RP1Pq3/2P1n2K/1p1b1PR1/1Nk3qn w - - 0 1 illegal: No proof kernel
Nn1BK1n1/rP1b1QBn/5r1R/1p3BNN/bp4PP/3b4/1Pq5/1bBkb3 w - - 0 1 illegal: No proof kernel
2nrN2n/3b1qb1/P4rnp/6RN/b2R3r/1k2PPBP/2p1NK1R/r1Q1N3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 gxf5 Ra4 Nh3 Ra5 Ng1 Ra8 d4 e6 d6 Ra3 d7+ Ke7 d5 Ra7 d6+ Kf7 Bg2 Ra8 Bd5 exd5 a4 c5 f6 Ke6 e3 g5 f7 b5 h3 c4 f3 c3 a5 d4 a6 Kd5 Ke2 Kc4 Qc2 d3+ Kf2 d2 Qb2 d1B Rh2 g4 Kf1 b3 Rd2 b4 Kg2 g3 Rd3 Ne7 Ra5 Bg7 f8N Qc7 d8N Nd7 Ra3 Ng6 Nc6 Nb6 Rd2 Qf7 Ne7 Bd7 Ra5 Rd8 Rg5 Nc8 Ne6 h6 Nc7 Rhf8 Re2 Nh8 Ned5 Bc2 Qa1 b2 Nf6 Kb3 Na3 b1R Bd2 Rd1 Be1 Rd4 Kf1 g2+ Kf2 Rh4 Nce8 Bd1 Ra2 Bc2 Ne2 g1N Qc1 Bd1 Ng3 Ne2 Nfh5 Nf4 Ne2 Nfg6 Rd2 Qd5 Nc2 Rf6 Rd4 Qf7 Rd2 Ka2 Rd4 b3 Rd2 b2 Rd4 Bf5 d7 b1R Rd2 Ra1 Rd4 Na7 Rd2 Kb3 Rd4 Rb8 d8R Nc8 R8d5 Be6 Rg2 Bd7 Rh2 Nd6 Rg5 Rd8 Kg1 Nc8 Bg3 Ka2 Ne1 B1a4 Kf1 c2 Kf2 Kb3
N3r2K/2R1pR2/1r1rN1np/1b2Q3/1P2b2R/1r2b1q1/2P1P1P1/1kNBn1Rn w - - 0 1 illegal: Other
R1Q2r2/2p1kNb1/r3Prn1/2n1N3/pN2b1b1/PB3RRP/1nP2N1q/2n3K1 w - - 0 2 illegal: No possible last move
1bq3R1/PB4r1/np4nn/N3R3/1PP1P1K1/R2Rp1n1/br1QnB1B/k4q2 w - - 0 1 illegal: No proof kernel
1R2n3/rr1nN3/qRq1bb2/2P2nNp/1qNP1B1P/2Q4P/n4p2/1k1N1K1R w - - 0 1 illegal: No proof kernel
kB1n4/3p1B1b/Nq1P1n2/bK1nNN1P/n3P2p/3rN2P/QB6/q3br1R w - - 1 2 legal: proof: b4 c5 a4 b5 axb5 e5 f4 exf4 b6 Qf6 Kf2 Qe7 Ke1 Qd8 g4 h5 b5 h4 Ra4 Qg5 Rb4 Qh5 gxh5 cxb4 d4 Kd8 Kd2 a5 Kd3 g5 Kc4 f5 d5 g4 b7 Kc7 e3 f3 c3 a4 h3 f4 Be2 a3 Nd2 g3 Qc2 a2 Bb2 a1B Qe4 b3 Qe6 f2 Qa6 f1N Bc1 b2 Ngf3 b1N Ng1 g2 Qa7 f3 Ne4 f2 Nf3 g1Q Ne5 Nf6 Nd2 Bb4 Bb2 Nc6 b8N+ Bb7 Qa2 Nd8 b6+ Kc8 d6 Rf8 Bd1 Ra3 Bb3 Be4 Na6 Kb7 Kb5 Bh7 e4 Ne3 c4 Ba5 c5 f1Q+ Ndc4 Ka8 c6 Ned5 c7 Qc1 Ne3 Nbc3+ Kc4 Na4+ Kb5 Qb1 c8N Qgd1 Bc4 Rd3 Ne7 Qg1 N7f5 Qbe1 Ba3 B1c3 Bb2 Qa1 Bb3 Be1 b7+ Ka7 b8B+ Ka8 Ng3 Ng4 Bc4 Rf1 Ngf5 Ngf6 Bb3 Ne7 Bf7 Ned5 Ng2 Qd4 Nge3 Qb6+
2R1NKrR/1bpP4/1kPQ4/nq1P1N1R/1pn3rP/n4b2/R1NB1q1b/b7 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 exd5 g6 f5 Bd7 Be2 Be6 fxg6 Bd7 g5 Bc8 Bg4 hxg4 Ke2 Kd7 Kd3 b5 Kd4 f5 Ke5 f4 a4 b3 d4 b4 c4 b2 h4 f3 a5 g3 d6 Kc6 c5 g2 a6 f2 a7 f1B d7 Nh6 Ke6 Rg8 g7 Be2 g6 Nf7 Nf3 g1B Rh2 Nd6 Ra5 Nc4 Kf7 e5 Na3 b1N Bd2 e4 Nc2 e3 Rg2 Bh2 Rb5 Rh8 g8N Qg5 g7 Bb7 Nf6 Nba3 g8R Bg7 Rc8 Rg8 Ne8 Bh8 Rf2 Qd5+ Ke7 Rg4 Kf8 Qe5 Qf1 Bd1 Qd3 e2 Ra5 e1Q Re2 Nb1 Ra2 Qd5 Re5 Qf2 Rh5 Nba3 Qg6+ Kb5 Qd6 Qc6 d5 Ba1 Nf6 Ka6 Nfd4 Bf3 Nf5 Qb6 Ne8 Nc6 Ne1 Rb8 Nc2 N6a5 c6 Qb5 a8R+ Kb6 Ra7 Nb3 Ra5 Nb1 R5a3 Nba5 Re3 Ra8 Re7 Nba3 Reh7 Rb8 Rh8 Bg7+ Kg8 Nb2 Rd8 Nbc4 Nf6 Ra8 Rf8 Re8 Kf7 Re6 Rc8 Re7+ Kg8 Re8+ Kf7 Rg8 Ne8 Ba1 Ke7 R8g7+ Kf8 Rg8+
3RbnQb/P1N1kP1r/8/8/rPR1pRNp/N6b/q1K1P2r/1Nn2qrB w - - 0 1 illegal: No proof kernel
2nR4/q2p3k/N7/RQ1PrrK1/N1N4N/1r1nr3/BPRPP2p/bq3b1b w - - 0 1 illegal: No possible last move, all moves rejected
Rq2k3/N2q2b1/1N1rPr2/2nb2N1/1p2pbnN/1KBP4/nPP1B2B/1Q5n w - - 0 1 illegal: No possible last move
4b1B1/1Pr2rP1/Q1r4B/p1R1q3/1B3pNb/2b2r2/P3RPR1/qRK2nnk w - - 1 2 legal: proof: d4 g5 c4 e5 dxe5 b5 Be3 bxc4 Bd2 Nh6 Bc1 Ng8 h4 Na6 h5 Qe7 Nd2 Nb8 Ndf3 Qd8 Nh4 gxh4 Qc2 Ba6 Qxh7 Bc8 Kd2 Ke7 e4 Ke6 b4 f5 g4 a5 g5 c5 h6 d5 b5 c3+ Kd1 f4 g6 c2+ Kd2 h3 b6 h2 b7 d4 Bb2 c1B+ Kc2 d3+ Kd1 c4 Qg7 c3 h7 c2+ Ke1 d2+ Ke2 d1R Bc3 Bb2 Be1 c1R Nf3 Qd6 Rg1 h1Q Bb4 Be7 Bg2 Nd7 Nh2 Bc3 Qf8 Ngf6 Qh6 Ra6 Ng4 Rd3 Rb1 Rf8 h8B Rc6 Bg7 Nh5 Bf1 Rf6 Rg2 Rf3 Bf8 Qb8 Bg7 Rc2+ Kd1 Rf7 Bf8 Bh4 Bg7 Rd2+ Kc1 Ng3 Bgf8 Rdd6 Bg7 Qg1 Bf8 Rc7 Bg7 Ke7 e6 Ne5 Bf8+ Ke8 e7 Kd7 e8R Kc6 Rd8 Bd7 Rc8 Be8 Bg7 Re3 Bf8 Nf3 e5 Kd5 e6 Ke4 e7 Rdc6 Bg7 Qh1 Bf8 Ng1 Bc4 Kf3 Be6 Rh7 Bg8 Rf7 Bg7 Nf1 Bf8 Bd7 e8R Rd3 Re2 Be8 Qg5 Re3 Bh6 Rd3 g7 Re3 Rh2 Rd3 Qb5 Re3 Rh3+ Kg2 Qb6 Rf3 Qa6 Qh2 Rg3+ Kh1 Rg2 Qh3 Ne3 Qd7 Ng4 Qd4 Rd8 Qe5 Rd5 Qc8 Rc5 Qce6 Bh7 Qb3 Bg8 Qb2+ Kd1 Qa1 Kc2 Qg5 Kc1 Qe5
4NBrq/3NRP1p/4KQBN/N2pbb2/1rn1nB2/P3q1PP/1q3k2/2b2q2 w - - 0 1 illegal: No possible last move, all moves rejected
1RBN1b2/K4p2/bq1n1PNb/7P/2nN1QpP/1Prr1p2/qkN2r2/6RR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 Rh6 f5 Rh8 Bf4 exf4 Kf2 Ke7 c4 Kd6 h4 Kc5 e4 Kb4 e5 a5 c5 d5 b3 g5 b6 g4 c6 d3 b7 d2 e6 d4 e7 d3 e8R a4 c7 f3 Ke3 a3 Ra2 Ne7 Qe1 Nd7 b8N Nb6 Qg3 d1R Rg2 d2 Ne2 a2 Nd4 a1B Rgg1 Ba6 Na3 Kc3 c8N Kb2 Qf4 Nc4+ Ke4 Qa5 Nac2 Qa2 Nbc6 Rc1 Bd3 d1Q Nd8 Qf1 Be2 Qf2 f6 Nf5 Kd5 Nfd6 Kc6 Rg8 Nb4 Rc3 Ne7 Rg5 Nbc2 Rd5 Ng6 Bh6 Nb5 Rdd3 Nbd4 Ra7 Bf1 Re7 Rf8 Re2 Kc7 Qe3 Kb8 Rf2 Ka7 Qe5 N8c6 Qb5 Rb8 Qb6+ Ka8 Kb1 Nd8 Bb2 Be2+ Bc1 Bf1 Kb2 Be2 Qb5 Ka7 Bf8 Bf1 Re3 Bd3 Qba5 Bf5 Red3 Bc8 Qb4 Qh2 Bch6 Qf4 Qb6+
1n1r4/6pP/K1nq3N/PQ1pbNP1/1Nr2R1R/2n1pR2/B3P1k1/R2bq2q w - - 0 2 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 Nd2 c5 dxc5 h4 Nb1 e4 Be3 Qc7 Bf2 Qe5 Bg3 hxg3 fxe5 Rh6 Qd4 Rh4 Qd1 Rh8 Kd2 Ke7 h4 Ke6 a4 Kd5 c4+ Kd4 e6 f5 c6 b5 g5 b3 e7 g2 e8R f4 c5 b2 h5 b4 c7 f3 c6 f2 h6 d6 h7 b3 a5 Bd7 c8N Nf6 c7 Nc6 Nc3 b1Q Rh4 b2 Ne7 Rc8 Nh3 g1Q Ncd5 Qh2 Bg2 f1Q Nb4 Qfh1 Qa4 Qbe1+ Kc2 Ke3 Kb3 b1N Kc4 Nc3 Qb5 Bf5 Nf2 Nd7 Ng4+ Kf4 Nh6+ Kg3 Bf3 e3 Bd5 Bc2 Nef5+ Kf2 Bf7 Kg2 Ree4 Bd1 Ref4 Be7 Be6 Bf6 Bg8 Rd8 c8R Be5 Rc7 Nf6 Rf7 Nd7 Rf6 Rc8 Kd3 Qhg3 Ba2 Rhd8 Kc4 Nb1 Qa4 d5+ Kb5 Nc3+ Ka6 Qgh2 Rf3 Qf4 Nd3 Qb4 Qb5 Qd6 Nb4 Ne7+ Ka7 Rc4 Rf8 Nc6+ Ka6 Qg6 Ne7 Qe6 R8f4 Qd6 Nef5 Ndb8+
3b2R1/4Brp1/q1nQBB1b/1rrnPq2/1Np2pP1/n6P/2P1B1N1/1K3Nk1 w - - 1 2 illegal: No possible last move
1nNrn1bk/Q2p3P/2N5/pqRB2Pq/P2PrBK1/r1B2B2/1b4pN/6n1 w - - 0 2 legal: proof: e4 f5 b4 c5 bxc5 g6 exf5 g5 f4 gxf4 a4 h5 g4 Qc7 g5 Qd8 Ra3 Kf7 Rg3 Ke8 Rg4 hxg4 Kf2 Kf7 c4 Kg7 h4 b5 c6 a5 c5 e5 c7 e4 h5 f3 Kg3 b4 c6 b3 Bg2 f2 Bf3 f1Q Na3 b2 Nb5 b1R Nd4 Bb7 c8N e3 c7 e2 Nc6 e1N f6+ Kh7 d4 Qe8 h6 Qb5 f7 Rb3 Qe2 Ba3 f8B Nf6 Bb4 Bb2 Bc3 Ra3 Bf4 Qh5 Qe7+ Kg8 Qc5 Ne8 h7+ Kg7 Bd5 Nf3 Qa7 Rg8 Rh2 Kh8 Rc2 Rg7 Rc1 Re7 Rc2 Re4 Rc1 Ne5 Nf3 Ba6 Nh2 Nf3 Rc2 Ng1 Rc1 Qf7 Kh4 g3 Kg4 g2 Bb4 Qb6 Rc5 Bc4 Bc3 Qb7 N8e7 Bb3 c8B Qb5 Bb7 Ba2 Nc8 Qg6 Bb3 Qh6 Bd1 Bg8 Bf3 Na6 Nd6 Rd8 Nc8 Nb8 N6e7 Nh3 Bd5 Ng1 Nc6 Qh5+
K1B1qNn1/nqqRpQ1b/4Np2/1P3B1N/2b3P1/1r1B4/1p2PPkn/B4r2 w - - 1 2 legal: proof: b4 c5 a4 b5 axb5 g5 h4 gxh4 b6 Nh6 b5 Ng8 Ra3 Bh6 Ra4 Bf8 d4 Nh6 c4 Qc7 Rb4 cxb4 c5 Qd8 c6 Ng8 Bb2 Bh6 Bc1 Bf4 Qd2 Bd6 Qd1 Bc5 dxc5 Bb7 Be3 Ba6 Bc1 Bc8 Kd2 a5 Kd3 d5 Kd4 h5 g4 h3 c7 a4 b7 a3 c6 h2 Kc5 a2 Kb6 a1Q Qc2 h4 Nd2 h3 Qg6 d4 Bb2 b3 Ba3 d3 Nb1 d2 Qh5 d1B Bb4 Bf5 Bc5 Qc3 Qh7 f6 Bg2 Ra3 Qg7 Bh7 Nf3 Qc8 Re1 h1N Ng5 h2 Ne6 Ng3 Be4 h1Q Bd3 Nf1 Nd2 Nh2 Bd4 Qc2 Ba1 b2 Rf1 Rb3 Ka7 Qd7 c8B Qf3 c7 Nc6+ Ka8 Na7 Qg5 Kf7 Ne4 Qe8 Qd5 Kg6 b8N Qc1 Bd7 Qg2 c8B Qc7 Rh1 Bc2 Ng3+ Qe4 Bc4 Bd3 Nh5 Kh6 Rd1 Qh1 Neg7 Qg2 Bf5 Kg5 Nd7 Kh4 Nf8 Kh3 Nge6 Qf3 Qe4 Kg2 Qc6 Be4 Rd7 Bd5 Bcd3 Bc4 Qe4 Bg6 Nhg7 Rh5 Qb7 Bh7 Qd5 Rh3 Nh5 Qe4 Bb1 Rhd3 Bc2 Rd1 Bd3 Rf1 Nc5 Nc6 Qf7 Qf3 Nce6 Na7+ Rd5 Qe3 Rd6 Qeb6 Rd7 Qbb7#
B6b/3RRpP1/Q2r1bP1/K1n2Pp1/1r2n2p/B1N5/2k1nP1R/Bb2Rb1q w - - 0 1 illegal: No proof kernel
2b3Nn/4P3/1prb3r/3pNpn1/rR1P2QB/1PBb3q/2P4N/KBkB1r2 w - - 1 2 illegal: No possible last move, all moves rejected
3k3r/1n3p2/n1bbp1p1/3rPqRP/rQ5B/PK2B3/1BBP2R1/1rN1q2R w - - 0 1 illegal: No proof kernel
rQ2bB2/r3Np1q/qpN1k3/N5q1/P1Rp3n/q2P1NB1/BP1bPn2/4K3 w - - 0 2 legal: proof: f4 h5 g4 e6 gxh5 e5 fxe5 b6 c4 a6 a4 Rh6 Ra3 Rh7 Rb3 Rh8 Rb5 axb5 Qc2 bxc4 Qb3 Bb7 Qd1 Bc8 h4 Ke7 d3 c5 h6 d5 h7 g5 h5 c3 h6 g4 e6 c2 Kf2 d4 Qe1 c4 Bg5+ Nf6 Bh4 c1Q Bg3 c3 Nd2 c2 Bg2 Nc6 Ndf3 Qg5 Ne5 c1Q Bd5 Ra7 Ba2 Qc5 Ngf3 Qa3 Rh5 Kd6 e7 Bd7 e8N+ Ke7 Qg1 Qa8 Ke1 Ne4 Nd6 Nf2 Ndc4 Ke6 Qh2 Ne7 Nc6 Qg7 Ra5 Nf5 Rc5 Rg8 h8N Qh7 Ng6 Be8 Nge7 Nh4 Bf4 g3 N4a5+ Qb3 Bb8 g2 Rc4 Qa3 Bg3 g1Q+ Kd2 Qg6 h7 Qg2 h8B Qh7 Ke1 Bh6 Bg7 Qb7 Bb8 Qa6 Bf8 Qg5 Bg3 Bd7 Bg7 Rga8 Bf8 Be8 Qh3+ Qgf5 Qg4 Be3 Qf4 Qg5 Qb8 Bd2+
2BkN3/3PnP2/1NQrb3/pqbBqP1r/5K2/P1R3pr/1B2p3/r1BN3n w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 a3 c5 bxc5 f5 gxf5 Rh6 Nh3 Ra6 Rg1 Rb6 Rg4 hxg4 Ng1 Rh6 Bc4 Nd7 Qe2 Rh5 Nh3 Nb8 Bb2 Qa5 Nc3 Rh4 Kf1 Na6 Re1 Qa4 Nb1 Nb8 Qd1 Nf6 Bc1 Qb5 Ke2 Ng8 Rh1 Qa6 Ke1 Rh8 Bf1 Qa5 Ng1 Qd8 Ke2 b5 Ke3 g5 f4 a5 c4 e5 h4 g3 d4 g4 c6 b4 h5 g2 d5 b3 f6 b2 c5 g3 h6 Qd7 f5 Ra7 d6 Qe7 h7 Rd7 c7 Na6 c6 Nc5 Qc2 Nd3 Nf3 g1R Bg2 Nf2 Nc3 b1Q Nd1 Qb5 Ng5 Qg7 Rh2 Nh1 Nf7 Ne7 Rh6 Rd8 Qc3 Be6 c8N Rf1 c7 Rf4 Nb6 Rh4 c8B Rh5 Qc6+ Rd7 Ng5 Kd8 f7 Qf6 Nf3 Rh3 Nd2 Qg7 Ndc4 Qf6 Ke2 e3 Kf3 e4+ Kf4 e2 Rg6 e3 Bd5 e1R Rg8 Ra7 d7 e2 Nd6 Ra6 Ne8 Qc3 Rg6 Qe5+ Kf3 Rg8 h8B Rh5 Bg7 Rgh8 Rg4 Rh3 Rc4 R8h5 Rc3 Rg1 Bb2 Re1 Bh6 Rf1+ Nf2 Ra1 Nd1 Ra7 Bhc1 Rc7 Qc5 Rc6 Kg4 Rd6 Qc6 Bh6 Kf3 Be3 Kg4 Bc5 Kf3 Qf6 Kf4 Qe5+
q1Bn3R/bbN3pq/2P3p1/1NN1P3/5r1p/1KQnB1P1/1P1q1B1q/N2kr3 w - - 0 1 illegal: No proof kernel
4n1kB/R3B2q/pp2p2B/1P6/P1n3Pb/q2nB1Kb/1n1QP1b1/1NrN2N1 w - - 0 3 legal: proof: b4 g5 c4 h5 f4 a6 a4 b6 g3 c6 f5 h4 f6 h3 Bg2 hxg2 Ra3 d5 cxd5 e6 Re3 Kd7 Re4 Ra7 Rf4 gxf4 Qb3 Ke8 Qd1 Re7 fxe7 Kd7 Kf2 Ke8 h4 f5 d4 Kf7 e8N f3 d6 f4 h5 c5 h6 c4 b5 c3 g4 c2 d5 Qe7 d7 Nc6 d8B Ne5 h7 Qa3 d6 Nf6 d7 Nc4 Rh3 Bb7 Ng7 Be7 Rh6 Ne8 Nh3 Bh4+ Kg1 f2+ Kh2 f1N+ Kg1 f3 Qd2 Nb2 Be7 Ne3 Kh2 f2 d8B f1B Ng1 Nec4 Nf5 Rf8 h8B Kg8 Rf6 Rf7 Bf8 Rc7 Bh6 Ba8 Ne3 Bd5 Qd3 Rc6 Bd2 c1N Be7 Rc8 Qd4 Ncd3 Nd1 Na5 B6g7 Ne5 Bd6 Bf2 Rf7 Rc1 Nf3 Nac4 Ra7 Bb7 Qc3 Ned3 Be7 Ba8 Be3 Bg3+ Kh3 Be1 Bf2 g1Q+ Kh4 Qg2 Ng1 Qe4 Qd2 Bh3 Bh6 Qg6 Kg3 Bb7 Kh2 Qh7 Bfc5 Bh4 Bce3 Bf6 Kg3 Bbg2 Qc3 Bg5 Qd2 Bh4+
BKN1brN1/3BBpBb/1p1pPP1n/P2n2np/1P6/R1b5/QN2k3/1q3r2 w - - 0 2 legal: proof: b4 g5 a4 e5 c4 b6 d4 Nf6 dxe5 Nc6 h4 gxh4 c5 Ng8 Ra3 Nb8 Rf3 Nc6 Rf6 Nb8 cxb6 Ne7 b7 Ng8 Rb6 axb6 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 Kg4 f4 h5 e4+ Kg3 e6 Kf2 g4 c5 a5 c4 g5 c3 f5 c2 f6 h3 e5 h2 e7 Rh6 Kd6 Bg7 e8B Rh8 g6 Qe7+ Kc7 Nh6 Nd2 Rg8 Ngf3 Nc6 b8B Nd4 Ng5 Nf3 Nc4 Qe6 Qd5 Qf5 Rg1 h1B Bg2 Ke2 Ne4 Ng5 e6 Rf8 Bf4 c1N Nb2 Na2 Ra1 Nc3 Nd6 Qb1 Qa2 Ba6 Bc1 Bb5 Nc8 Nd5+ Kb7 Ba4 Bd6 Ra7+ Kb8 Rc7 Be3 Rc1 Be7 d6 Bd7 Rf1 Be4 Bf3 Bd2 Bg4 Bh1 Bf5 Be4 Bh8 g7 Bh7 g8N Bg7 Bg2 Nf5 Bh1 Bh6 Bg2 Ne4 Bc1 Bd2 Bh1 Bc3 Bh6 Ng5 Bg7 Nf4 Ba8 Nh6 Qb3 Bc6 Ra3 Nd5 Qa2 Bb7 Ba4 Bc6 Bb5+ Qd3 Ba4 Be8 Bd7 Qb1
8/B1n2R2/n2bb2P/4pB1q/1kB2pr1/3PPrnN/1pp1r1PQ/R3K1BR w - - 0 1 illegal: No proof kernel
4b1nR/Rq1Bn1P1/2p3N1/1BRbpQb1/2P1P1K1/2p2rBP/2kp1r2/3R3n w - - 1 2 illegal: No proof kernel
R2bq3/p1PB1N2/rpR4n/3knRP1/bPp2QP1/3r4/1r1pN1R1/1N4bK w - - 0 1 illegal: No proof kernel
1qk1b1NN/PRb1R2B/bQ2rr1p/6PP/2NR1p2/6pn/q1p1N1P1/3n2K1 w - - 1 2 legal: proof: c4 d5 cxd5 e5 b4 a5 d6 axb4 d3 Ra6 d4 Ra8 f4 g5 d5 g4 Be3 Qf6 Bd4 Qg5 fxg5 exd4 Kf2 Kd7 h4 b5 a4 f5 e4 c5 e5 d3 a5 g3+ Ke3 c4 h5 h6 a6 d2 a7 c3 Nf3 b3 Be2 b4 Nd4 f4+ Kf3 b2 Qb3 d1B Na3 b1Q Re1 Nc6 Nc4 Ba6 e6+ Kc8 e7 Nf6 e8N Ne4 Nf6 Nf2 Ng8 Qa2 Rb1 Ne7 Rb2 Bc2 Bd3 Nf5 Re7 Ne3 Ne2 Ned1 Bh7 Bg6 Rb1 c2 d7+ Kb7 d8N+ Kc8 d6 Be8 Qb2 b3 Nf7 Rb8 Qf6 b2 Qd4 Rb6 d7+ Kb7 Qc5 Re6 Qa5 Bg7 Qd8 Be5 Qb6+ Ka8 d8R+ Bb8 Rc1 b1Q Rd4 Qb5 Rb1 Bc7 Nc3 Rf6 Ke2 Qbb3 Kf1 Qbb2 Qa5 Kb7 Qb6+ Kc8 Kg1 Qb5 Ne2 Re6 Qc5 Qb8 Rb7 Rf6 Qb6 Re6 Nf6 Rf8 Nh8 Rf7 Ng8 Rf8 Rd6 Rff6 Rd4 Nh3+
k1r1N1B1/1b2BB2/2Q1p1pR/P1b2q2/r2p1N1q/B1PpP1n1/2NP4/3K2rn w - - 1 2 legal: proof: g4 a5 h4 f5 gxf5 c5 b4 g6 h5 Kf7 h6 Ke8 a4 axb4 Ra3 Qb6 Rd3 Qf6 Rd4 Qg7 hxg7 cxd4 f4 Kd8 f6 Kc7 c3 b5 e3 Kb7 f5 h5 f7 d5 f6 e6 Bb2 h4 Rh2 h3 Bd3 b3 Ne2 b4 Rf2 h2 Rf1 h1Q Bc2 Nh6 g8B Nc6 Nf4 Nf5 Be4 Nce7 Na3 Ng3 Nc2 Nef5 Qf3 Qh4 Rh1 Bc5 Ba3 b2 f8N b3 f7 d3 Rh3 Nh1+ Kd1 Nfg3 Nd7 Ra5 f8B Ka8 Bd6 Bb7 Be7 d4 Bc6 Ra6 Nf6 b1R+ Bc1 b2 Be8 Ra1 Qc6 b1Q Bef7 Qb3 Ne8 Qd5 Rh2 Qf5 Rh3 Rb6 a5 Ra4 Qc7 Rc6 Ba3 Rh5 Qd7 Rc8 Qc6 Rg5 Rh2 Nf1 Rh3 Rg1 Rh2 Qhg5 Rh7 Qh4 Rh6 Nfg3+
1r1q1n2/1R1P3p/1qn1p3/B1RN1p2/2Pb4/Rr2KPp1/2P1b1N1/rk1N1RQ1 w - - 0 1 illegal: No proof kernel
2n2Qn1/3b1BBP/P2p1rR1/k7/3PBrpp/K2r1N2/4pqPR/1q1nR2R w - - 0 1 illegal: No proof kernel
Q3b3/1RprB1N1/P2r1nB1/3pb3/bNP3p1/1pP2qPb/5kN1/1b1K2NB w - - 0 1 illegal: No proof kernel
5K1n/n2N4/1B4pp/qp4PN/p1PbPB1N/1N1Qr3/P1r1bp2/Rn1B3k w - - 1 2 legal: proof: f4 c5 h4 e5 b4 exf4 h5 d5 h6 d4 Na3 g6 c3 Qf6 Rb1 Qg7 hxg7 Bg4 Rb3 Bh3 bxc5 Bd7 c4 Bc8 Rc3 dxc3 Kf2 Kd7 Kf3 Ke6 Ke4 f5+ Kd4 b5 g4 a5 e4 f3 g5 f4 c6 f2 d3 f3 c7 c2 Bg2 f1N Bf4 c1Q Nb1 Qa3 Nd2 Nh6 g8N Bg7+ Nf6 Nf7 Nb3 Nd2 Qb1 f2 Nf3 h6 Nh4 Bd7 c8N Rd8 Bf3 Nh8 Qc2 Nb1 Bd1 Ra6 Nb6 Nc6+ Ke3 Ra7 Nh5 Bd4+ Kf3 Bc8 Nd7 Ra6 Kg4 Na7 Qc3 Qb4 Rg1 a4 Rf1 Qa5 Rg1 Bf6 d4 Rd6 Qd3 Rd5 Re1 Rf5 Rf1 Be5 d5+ Kd6 Bd2 Rf3 Bf4 Re3 Re1 Ke7 d6+ Ke6 Nb8 Bd4 d7 Re2 Rf1 Rc2 Rg1 Rf8 d8B Rf5 Bb6 Rf8 Bc1 Rf3 Nd7 Re3 Kf4 Kd6 Ndf6 Bg4 Nd7 Be2 Rf1 Kc6 Rg1 Bc5 Ke5 Bd4+ Ke6 Rh3 Ke7 Be5 Rg3 Nc3 Qf3 Bg7 Ke8 Kd6 Qd3+ Bd4 Kf8 Ke6 Nb8 Ke5 Rg1 Rg3 Ba3 Rh3 Be7 Re3 Rh1 Bg4 Be2 Bf3 Ra1 Nb1 Bd1 Be2 Nf6 Kf4 Nh5+ Kg4 Nd7 Kh3 Bed8 Kh2 Bdc7+ Kg1 Bf4 Kh1
3N1n1k/4pK1B/p1N5/bn2qpp1/N3PbP1/B2n1P1N/Pr1Bp2b/3QrR2 w - - 2 4 legal: proof: e4 d5 h4 b5 c4 bxc4 b4 g5 h5 d4 Na3 Bd7 Rb1 Bg4 Rb3 Bf5 Re3 Bg6 hxg6 dxe3 Ke2 h5 Kf3 f5 d4 c5 g4 a6 g7 Kf7 b5 c3 b6 h4 b7 c4 d5 h3 d6 c2 d7 h2 Qd4 c3 Bb5 e2 Ke3 Nh6 g8N Qc7 d8B Qe5 f3 Kg7 Qd7 Nf7 Ba5 Nd6 Bc4 Nb5 Qd1 Nd7 Nh6 Rb8 Nf7 Rh3 Nd8 Kh8 Bd5 Bg7 Nb1 Nf8 Ba3 c1B+ Kd3 c2 Kc4 Bf6 Nc3 Bd2 Bg8 c1B Bh7 Bf4 Na4 Bcd2 Bc3 Rg3 Nh3 Rg1 Bcb4 Re1 Rf1 h1N Bc3 Nf2 Bcb4 Qc7+ Kd5 Nd3 Bc3 Bh2 Ba5 Bdf4 Bd2 Ra8 b8N Bc3 Nbc6 Ba5 Ng1 Rb8 Nh3 Nd7 Ke6 Nf8+ Kf7 Qe5 Bc3 Nc7 Bd2 Rb2 Qb1 Nb5 Qc2 Na7 Qd1 Nb5
KN2Q3/P1Nn3R/2q1q2P/6PP/b6k/1r3q1N/QNbp1R2/B1b3n1 w - - 0 1 legal: proof: d4 g5 h4 f5 b4 c5 dxc5 b5 e4 a5 f4 h5 exf5 axb4 c4 Ra3 cxb5 Rh3 gxh3 Rh6 Be2 Rh8 Bg4 hxg4 fxg5 Ba6 Qd3 Bb7 Qd1 Bc8 Kd2 Kf7 Kd3 e5 Ke4 b3 Kd5 e4 a4 e3 h5 g3 b6 b2 h4 g2 b7 e2 a5 e1Q a6 Nc6 b8N Qde8 a7 Ne5 c6 Ba3 f6 Rh7 c7 Nf3 Nd2 b1B Bb2 Bc2 Nh3 g1Q Qe2 Qgf2 Ra2 Ng1 Ba1 Bc1 Nc4 Qf3+ Kd6 Ba6 c8Q Bb5 Kc7 d5 Kb7 Bba4 Ka8 d4+ Qc6 d3 Nb2 Qc8 Qd2 Qee6 Rh2 Kf8 f7 Kg7 f8N Nf6 Rf2 Nd7 h6+ Kf7 h5 Ke7 Qa5 d2 Ra3 Qe8 Rb3 Qc8 Qe4 Qc6+ Rb7 Rf7 Qg6 Kd6 Qa6 Ke5 Qc4 Rg7 Qe8 Kf5 Qd5+ Kg4 Qa2 Qeb3 Ne6 Kh4 Nc7 Qbe6 Qg8 Rf7 Qe8 Rf4 Qf7 Rb4 Nd5 Nf6 Qg8 Qb6 Rh7 Nd7 Qf7 Qbd6 Qe7 Rb7 Qe8 Qc6 Nc7 Rb3+
4b1K1/5q1Q/PQ2Q1NB/n2nr2q/PPb3q1/1Nb1Pq1R/1Q2R2b/6k1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 Bc5 bxa5 Bf8 a3 b5 e3 b4 Bc4 Ra7 Ba2 Ra8 c3 b3 Nf3 bxa2 Ng1 Ra7 Ne2 Rb7 Ng1 Rb4 cxb4 Qg5 Qa4 Qe7 Qd1 Qd8 Ke2 Ke7 Kf3 Ke6 Ke4 g5 h4 f5+ Kd3 Kd5 h6 g4 h5 g3 a4 f4 a6 g2 e6 f3 h7 f2 e7 f1B+ Ne2 g1Q e8Q Nc6 h6 Qc7 Qd8 Nge7 Na3 Na5 Rb1 a1B Bb2 Qg4 Nb5 d6 Rh2 Bd7 Rf2 Be8 Qb3+ Ke5 Rf3 Nd5 Re1 Qf7 Qb6 Rg8 Qa2 Rg5 h8Q+ Bg7 h7 Rf5 Ba3 Bc3 Bb2 Rh5 Qg8 Bh6 Qb3 Bf4 Rh3 Bh2 h8Q+ Kf5 Qgg7 Qf3 Qf6+ Kg4 Qh7 Re5 Qfh6 Nc6 Kc4 d3 Qa3 d2 Nd4 d1Q Nb3 Qd4+ Kb5 Qde4 Qe6+ Qef5 Kc4 Qh5 Ba1 Qf7 Qeh6 Q5h5 Qb2 Na5+ Kd3 Bg2 Nf4 Bf1+ Re2 Bd2 Rh4+ Kg3 Kd4 Qfg4 Qe6 Qf3 Rf2 Bc4 Re2 Be1 Ng6 Bd2 Re1 Kf2 Re2+ Kg1 Rh3 Nc7 Qc2 d5 Qb2 Bc3+ Kc5 d4+ Kd6 Qg8 Ke7 d3 Qd6 d2 Qb6 Qfg4 Kf6 d1Q Ke7 Beb5 Kf6 Qe8 Kg7 Qe7+ Kg8 Be8 Qa3 Nd5 Bb2 Be1 Bc3 Qa7 Qb2 Qb7 Bd4 Bc3 Bc5 Qf1 Bf8 Qff3 Bh6 Qbf7+
1r2qr2/pBr2nPk/1BP1N3/3n2n1/1R3PN1/1B5P/1r1QB1bK/5Qb1 w - - 0 1 legal: proof: d4 f5 a4 c5 e3 b5 axb5 cxd4 f3 g5 b6 f4 exf4 g4 fxg4 Bh6 b7 Bf8 Bb5 h5 Ra3 Na6 Bd3 d6 Ra1 Be6 Bf1 Qc8 bxc8B Rb8 Bb7 Rc8 Ba8 Rc6 b4 Bf7 g5 Rc4 g4 Rc6 g6 Nc5 g5 Be6 Ra3 Na6 Rg3 Bd7 Rg2 Be6 Rg4 hxg4 Kf2 d3 Kg3 d5 c4 d4 g7 Kf7 c5 Kg6 h3 d2 b5 d3 b6 Nh6 g8B Nf7 b7 Rc7 b8Q Bd5 c6 e5 Bb2 e4 Qe2 d1R Be5 d2 Bd4 e3 Bc5 Bg2 Kh2 Nb4 Bb7 Nd5 Bb6 Bc5 Na3 Rb1 Nb5 d1R Qd2 e2 Nd4 e1Q Be2 Rb2 Ngf3 Rdb1 Ne5+ Kg7 g6 Kh6 Bh7 Rf8 Ne6 Bd4 g7 Bc5 Bf3 Qe2 Bc2 Bg1+ Kg3 Qe3 Bb3 Kh7 Qd8 Qe4 Be2 Qg6 Qd1 Qe4 Qf1 Qe3+ Kh4 g3 Ng4 Qe4 Qd6 Qe3 Qb4 Qe4 Qd2 Qe5 Nc5 Qe8 Ne6 Bc5 Bbd1 Rc2 Ba8 Be4 Qf2 g2 Kg3 g1N Ba5 Qd7 Kh2 Rbb8 Bb6 Bg2 Bb7 Nf3+ Kg3 N3g5 Kh2 Rc4 Ba4 Rb4 Rb1 Qe8 Qf1 Re4 Rb5 Rb4 Bad1 Rb3 Rb4 Rb2 Bb3 Bg1+
R2K1b2/7B/3B3k/Pnbn1Q2/2Q1P1rr/1P1QpN2/3rbPQ1/2n1r2N w - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 h5 gxh5 b5 Bg2 b4 Qb3 a4 Qc2 b3 axb3 a3 Bf1 a2 Qd1 Qd6 e4 e5 d3 Qa3 Nd2 f6 bxa3 f5 a4 f4 d4 exd4 Rb1 Bh3 Rb2 Be6 Rc2 Bh3 Rc3 Bc8 Re3 fxe3 Ke2 Kf7 Kd3 a1N Kc4 g5 Kb5 Kg7 h4 c5 Kb6 d3 Kc7 g4 a5 g3 h6+ Kg6 h5+ Kg5 h7 g2 d6 c4 d7 c3 d8Q+ Ne7 h6 c2 Qd7 Nbc6 Ne2 g1R Ba3 c1B Bd6 Ne5 Bh3 Ba3 Bf5 Nd5+ Kd8 Nc2 Ng3 Nd4 Qc7 Rb8 Qc4 Re1 Rg1 Rg8 h8Q Bc5 h7 Nb5 Nf3+ Kh6 Nh1 Rg4 Qg8 d2 Rg3 Rb7 h8Q+ Rh7 Rg2 Nd3 Qe5 Rh8 Bh7 Nc1 Qf5 Ba6 Qdc2 d1R Q2d3 Rd2 Rg1 Rf4 Rg7 Rg4 Ra7 Rh4 Qg2 Rg8 Ra8 Rgg4 Qcd4 Nbc3 Qe2 Bd3 Qc4 Nb5 Qd1 Be2 Qdc2 Ba3 Q2d3 Bc5
q1B5/PPn3r1/1NR1N2P/2P1q1B1/q1n1b3/Nn2Qp2/1N2q3/1K2k1nQ w - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 e5 f4 h5 gxh5 a5 fxe5 b6 b5 Ra6 bxa6 b5 a3 Bb4+ axb4 Qe7 Ra4 bxa4 b5 a3 Nc3 Qg5 Nb1 Qd8 Kd2 Ke7 h4 Ke6 e4 f5 c4 g5 Kc2 d5 a7 a4 b6 d3+ Kd2 a2 c5 a1Q h6 f4 h7 g4 h5 g3 b7 d4 h6 f3 Rh3 g2 Rh4 a3 Rf4 a2 Na3 Nd7 Ne2 g1N Nc3 Ngf6 Nd5 Ne8 Nb6 Rg8 h8Q Nc7 Bh3+ Rg4 Rf5 Rg7 Qe2 Qg8 Qe3 Qb2+ Kd1 a1N Qh7 d2 Rf6+ Ke7 e6 Nb3 Qg6 Ne5 Qg2 Nc4 e5 Bd7 Bf5 Bc6 Qh1 Bd5 Bg4 Qa1 Kc2 Qa8 Rg6 Qc3+ Kb1 d1Q Bh3 d3 Bg4 Kf8 e7+ Kf7 e8N d2 Bc8 Qe2 Rc6 d1Q e6+ Kg6 Nd6 Qe5 e7 Qdd4 e8N Qdf4 Nf6 Kg5 Nfd7 Kg4 Nf8+ Kg3 Ne6 Qfd4 Qe4 Kf2 Bg5 Ke1 Qe3 Nca5 Ndc4 Qg4 Nb2 Qa4 Rd6 Nc4 Rc6 Be4+
3n2B1/1R2N3/KpQ1p2P/1P1RP3/1R4Pp/3prp2/QN2kr2/1Rr1nb2 w - - 0 1 legal: proof: g4 a5 a4 g5 b4 h5 h4 b6 hxg5 h4 d4 Rh5 gxh5 Bg7 b5 Be5 Bd2 Bg3 Bb4 axb4 fxg3 c5 a5 cxd4 a6 Qc7 Ra2 Qc6 Ra5 Ra7 Ra4 Rc7 Ra2 Qb7 Ra1 Rc6 axb7 Rh6 Ra5 Rh7 Ra1 Rh8 Kd2 d5 Kd3 Kd7 e4 Ke6 c4 Ke5 g6 f5 h6 f4 g7 f3 c5 b3 c6 b2 g4 Kf4 c7 Bd7 c8R Nc6 b8R Be6 e5 Bd7 Nd2 b1R Qc1 Be6 Rd8 Rb2 Rb7 Nf6 g8Q Nh5 Rb1 Kg3 Qf7 Kf2 Nc4 Rc2 Rd6 Rc8 Nb2 Nd8 Ne2 Ra8 Nc3 Ra3 Ra1 Rb3 Ra4 Re2 Rb4 Re3+ Kc2 Nf4 Bc4 d3+ Kd2 d4 Nd5 Bf5 Qc2 Be6 Rb1 Ng2 Qe8 Ra3 Qc6 Ne1 Qb3 Ra6 Qa2 Ra8 Nc7 Bf5 Bg8 Be6 Rd7 Bc4 Rd5 Ra6 Ne6 Ra3 Nf4 Rc3 Ng6 Rc2+ Kd1 Rce2 Kc1 d2+ Kd1 Ng2 Kc2 Bd3+ Kb3 d1R Ka4 Rc1 Kb3 Bc2+ Kc4 Ne1 Rd6 d3 Kd5 Bd1 Rdd7 e6+ Kd6 Rc3 Kc7 Rc1 Ne7 Rd2 Rd5 Be2 Kb8 Bf1 Ka7 Ke2 Na4 Kd1 Ka6 Rf2 Nb2+ Ke2
1K2k3/8/2nP4/P1q1b3/P1QN1BQN/b3n1Pr/B1bBn1r1/1qB1r1Rr w - - 0 1 legal: proof: e4 a5 c4 f5 b4 d5 bxa5 Bd7 cxd5 Bc8 exf5 g5 f4 gxf4 a4 h5 Ra3 h4 Rf3 h3 g3 Bh6 Rf2 Bf8 Rg2 hxg2 Ke2 b5 Kf3 c5 Ke4 e5 d4 f3 h4 c4 h5 b4 d6 b3 Kd5 c3 h6 b2 f6 e4 h7 c2 Rh2 f2 Na3 b1Q Rh1 e3 Bc4 f1R Nf3 g1R Ba2 e2 Nh4 e1B Nb5 Rg2 Qg4 Bf5 Rg1 Na6 Kc6 Ne7+ Kb7 Bc3 d5 Nb4 Nd4 Re1 Bf4 c1N f7+ Kd7 Bd2 Ne2 Bc1 Qe8 Bf4 Kd8 d7 Bc2 Bc1 Ra7+ Kb8 Nf5 Bd2 Bc5 f8Q Ne3 Qf1 Qf8 Bc1 Ke7+ d8B+ Ke8 Bg5 Ra6 Bd2 Rh6 Bf4 Qf5 d6 Qg5 Nhf5 Rh1 Nh4 Bb2 Bc1 Ba3 Bd2 Bb6 Bc1 Qc5 Bd2 Bd8 Bc1 Bf6 Bd2 Rg8 h8B Be5 Bf6 Rh8 B6g5 Nc1 Qc4 Ne2 Ng6 R8h2 Nh4 Rh3 Bc1 Nd1 Bfd2 Ne3 Bf4 Nc6+
1K6/1BP2N1R/nP6/1k2qnrq/6P1/Qnr1b2q/Q2N3P/rNbR2rN w - - 0 1 legal: proof: e4 c5 f4 b5 d4 cxd4 a4 g5 axb5 d3 fxg5 Qb6 Bd2 Qc7 Bc1 Qd8 g4 d5 Ra2 h5 Bf4 d4 Ra6 h4 Ra1 Be6 Bg3 Bd5 exd5 hxg3 Kd2 Kd7 b4 e5 c4 f5 b6 a5 b5 f4 d6 f3 g6 e4 b7 f2 g7 e3+ Kc1 g2 Kb2 d2 Kb3 e2 Ka4 e1Q b6 Kc6 c5 d3 d7 Ne7 g8N Rh3 Nh6 Na6 b8Q Qe8 Qc1 d1R Qb2 d2 Nf5 Rc3 Qg3 Qe5 Nf3 g1B Qa2 Bh6 Bg2 f1Q Qh3 Rc8 Ng3 Bge3 Rg1 Bhf4 Nh1 Q8h5 Qg3 Nf5 d8N+ Kd7 Nf7 Kc6 Qh3 Rg8 Qg3 Re1 Qh3 d1R Nfd2+ Qf3 Rf1 Rg5 Qg3 Kd7 Kb5 a4 Qh3 Qg3 Bb7 a3 Rf2 Rg1 Re2 Ke8 Kc6 Qg2+ Qf3 Qgh3 Re1 Rdc1 Rd1 Ke7 Bc8 Ke8 Kb7 Ke7 c6 Ke8 Qb2 a2 Ka8 Ke7 Bb7 Ke6 Qf2 Kd5 c7+ Kc5 Qa3+ Kb5 Re1 Nb4 Kb8 Rd1 Nc4 Bc1 Ncd2 Be3 Rf1 Re1 Qg2 Rd1 Rf4 Rde1 Rd4 Rd1 Rd7 Na6+ Kc8 Q3h4 Qd5+ Bc5 Qe6 Be3 Nd8 Qh3 Rh7 Bb2 Nf7 Nc5 Kb8 Rdf1 Qd5 Rf4 Qe6 Rb4 Qa7 Ra4 Na3+ Kb4 Rb1 a1N Rd1 Bc1 Nab1 Kb5 Qd6 Nab3 Qf8 Ra1 Qa2 Nd3 Qfa3 Ndc5 Ka7 Na6 Ka8 Nb4 Kb8 Na6+
2k1B1r1/n1P2Q1b/Nq1qqnRr/2B2RPR/n4RQ1/1n4b1/1PK3P1/1q6 w - - 0 1 legal: proof: e4 c5 a4 g5 h4 b5 hxg5 f5 axb5 a5 exf5 a4 d4 cxd4 Kd2 a3 Ke2 a2 Ke1 axb1Q Kd2 h5 c4 d5 f4 Kd7 b6 e5 b7 e4 f6 e3+ Ke2 d3+ Ke1 e2 Kd2 e1N f7 h4 f5 h3 c5 d4 f6 h2 Qh5 Nc2 Nh3 Qb6 Nf2 Nc6 b8Q Rh6 Qg3 Bd6 f8R Na7 f7 Nf6 Ra6 Na1 Ne4 Nb3+ Kd1 d2 c6+ Kc7 Bb5 Bf5 Nc5 Bh7 Qgg4 Bg3 Qg6 Qa2 Kc2 d1N Be3 Nc3 Q6f5 Na4 Qg6 Kd6 c7 Rc8 Be8 d3+ Kd1 d2 Kc2 Ke7 Q6f5 Qa5 Rd6 Qb6 Na6 Rb8 Bc5 Rd8 Rf1 h1Q Rf4 Qe1 Rh8 Qe6 f8R Qa1 Bf7 Qg1 Rc6+ Kd7 Be8+ Kc8 Rd6 Qd4 Rc6 Qd6 Qg6 Nh5 R8f5 Nf6 Qg8 Nc1 Qf7 d1Q+ Kb1 Qg1 Kc2 Qge1 Rg8 Nb3 Rg6 Qf8 Rd6 Qa1 Rd1 Qfd6 Rh1 Qf1 Rh5 Qh1 Bc6 Rg8 Be8 Qb1+
1knb1B2/1n2Qr2/Q3q1P1/1Pr2B2/3q1q2/N2PQ1qq/1r1R2P1/1QN2Kn1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 f4 gxf4 c4 e5 cxd5 Bd7 h3 Bg4 Ra3 e4 Rf3 exf3 hxg4 Bd6 Bb2 Bc5 Bc1 Bf8 e4 Kd7 d6 Kc8 g5 c5 g6 a5 e5 h5 e6 f5 b6 a4 d3 f2+ Ke2 f3+ Ke3 f4+ Kd2 c4 b5 a3 e7 a2 e8Q a1Q Qde2 h4 Q2e6+ Nd7 b7+ Kb8 Q8e7 h3 Qh4 c3+ Kd1 h2 Qe4 c2+ Kd2 Qdf6 Qf5 Qad4 Qh7 Nc5 d7 Be7 Be2 f1Q Qfh3 f2 Ba3 c1N Q3h5 f3 Qh4 Qe6 Q4h6 Bd8 Qe3 Ne7 Bd1 Re8 Ne2 Nc8 Bb4 Rf8 Na3 Rf7 Rg1 h1Q Qh8 Qdd6 Qa1 Qhh3 Qb1 Qdg3 Bb3 Ra5 Bd5 Ra6 Be4 Rc6 Rh1 Qg1 Bf5 Bc7 d8Q f1Q Qe7 f2 Be4 Bd8 Bf5 Na2 Nc1 Nc3 Qf6 Ne2 Qg7 Nd7 Bf8 Rc5 Qga1 Q1h2 Qg7 Qfg1 Qf6 f1R Qe7 Q1f2 Rg1 Re1 Rf1 Qff4 Rf2 Ng1 Re2 Qa4 Rf2 Rf1 Re2 Rf2 Ke1 Qd4 Rd2 Re2+ Kf1 Ne5 Rd1 Rb2 Rd2 Nc4 Qf6 Qed7 Qa6 N4d6 Qe7 Kc7 Qe3 Qe6 b8Q+ Kd7 Qbb6 Qgf4+ Rf2 Q2g3 Qba7+ Nb7 Q7b6 Rc6 Qc5 Kc7 Qb4 Kb8 Qe7 Nf3 Re2 Rc5 Rd2 Ng1+
1B2q3/PK3Q1r/3Q1P1Q/4R1nQ/3qnn1r/2Pq1n2/1P2r1r1/1b1NNB1k w - - 0 1 illegal: No proof kernel
4bNB1/bn1b3b/3Pnkp1/N1rR3r/P2Kn2P/BqB3Q1/Pr6/1Q3B2 w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 a5 b3 f5 exf5 a4 bxa4 Ra5 Bd3 Ra7 Bf1 Ra8 g4 Bh6 f4 gxf4 g5 Nc6 g6 Na7 Na3 Bf8 g7 Nc6 Rb1 Nb8 Rb6 Bd7 Ra6 Bc8 Rg6 hxg6 Ke2 Kf7 Kd3 c5 h4 e5 f6 b5 d6 e4+ Kc3 f3 d4 e3 d7 c4 d5 f2 Nb1 b4+ Kd4 c3 Nd2 c2 Ne4 b3 Nh3 b2 Ba6 f1B Ke5 b1B Bb5 e2 Rh2 e1N Bb2 c1R Nf4 Bc4 Nc5 Bf5 Qf3 Rh5 Nh3 Ng2 Bd4 Qb6 d8Q Nf4 Nb3 Na6 Qg3 Bc5 Rd2 Rb8 Na5 Qb7 Qd6 Ba7 Qb4 Nc5 Qb1 Bce6 Ba6 Bb5 Rd1 Be8 Bf1 Rc2 Rd3 Rb2 Bc3 Qb3 Rd4 Rb5 Rd1 Ng2 Nf4 Nb7 Rd3 B6d7 Ne6 Nf4 Rd4 Ne7 Rd1 Nc8 Rd4 Ncd6 Rd2 Kg8 f7+ Kh7 f8B Ne4 Bfb4 Rc5 Nf8+ Kg8 Ba3 Kf7 Rd4 Ke7 Rd1 Bde6 Rd3 Bg8 Rd1 Bh7 g8B Ng5 Rd2 Bfd7 Rd1 Nfe6 Rd4 Nh3+ Ke4 Kf6 d6 Nhg5+ Ke3 Ne4 Rd5+ Re5 Kd3 Nf4+ Kd4 Rf5 Qg2 Rh5 Qg3 Ne6+
1B1B1b2/2P2k1B/2q2n2/2b1qpKP/4R1Nr/r1nQ3P/P3RBnQ/n4n2 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 d5 exd5 c5 b3 c4 b4 axb4 f3 e5 Nc3 e4 Nb5 e3 Nd4 Bf5 Nb3 Be4 fxe4 cxb3 Ke2 b5 Kf3 g5 Kg4 b2 c4 b1Q d4 e2 e5 e1N e6 b3 d6 b4 d5 b2 h3 b3 e7 Qe4+ Bf4 b1N c5 b2 c6 Qe5 Nf3 Ng2 Bd3 Na6 Nh2 Nc3 Bh7 b1N Qd3 Nd2 Rhe1 Nf1 Re4 Qb6 Rae1 Nc5 R1e2 Ra3 Bg3 f6 d7+ Kf7 d8B Nb3 d6 Na1 d7 Qa6 Bb6 f5+ Kf3 Qc4 d8B Nf6 Ng4 Rg8 c7 Qc6 Ba7 Rg7 Bgf2 Ke6 e8Q+ Re7 Qed7+ Kf7 Qc8 Rd7 Bb8 Rd4 Qb7 Rc4 Qb2 Rca4 Bc5 Rd4 Nh2 g4+ Kf2 g3+ Kf3 Qed5 Qc1 Nge3 Kf4 g2 Kg5 g1B Re8 Rh4 Re4 Ng2 Qf4 Nc2 Ng4 Na1 Qh2 Qe5 Bca7 Bgc5 Bb6 Bce7 Bf2 Bc5
RN3B1Q/PN1qrpr1/1PB2Q2/PK4B1/4rb2/1b3P1r/1B1k4/nq1r2n1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 d5 gxh5 b5 a4 c5 e4 dxe4 c4 Bg4 Ra2 Bh3 Rb2 Bc8 Rb4 cxb4 cxb5 Bh3 Ba3 Bf5 Bc1 Bc8 Ke2 Kd7 d4 Ke6 h4 Kd5 b6 Kc4 h6 e5 h5 g5 h7 b3 h6 g4 d5 g3 a6 e3 a5 b2 a7 g2 d6 e4 d7 Nc6 f3 Nf6 Qd6 Nh5 Qh2 Bd6 Nd2+ Kc3 Qf4 b1Q Ba3 Nb4 Nc4 Nc2 Qf6+ Be5 Rh3 Na1 Nd6 Rb8 Rg3 Rb7 Rg8 Qc7 d8B Be6 Be7 Bb3 Ra8 Qd7 Bf8 Kc2 Bc1 Bf4 Bd2 Rc7 Nb7 Rc4 Bc1 Rd4 Bb2 Rd1 Bc1 Rg8 h8Q Rg7 h7 Rg3 Nh3 g1R Nf2 Rh3 Nd3 Rg7 Ndc5 Rd6 Na6 Ng3+ Ke1 e2 Nb8 Rd1+ Kf2 e1R Bb5 Ne2 Bc6 Ng1 Bd2 Bd6 Bg5 Kd3 Qg8 Bf4 h8B Rgh7 Bhg7 Kd2 Qh8 Re3 Qe6 Ree1 Bb2 Rg7 Qf6 e3+ Kg2 e2 Kf2 Kd3 Bc1 Kc2 Bb2 Bc7 Ke3 Bd6 Ke4 Bf4 Bd6 Kd2+ Kd4 Rf1 Kc5 e1R Kb4 Re4+ Kb5 Rfe1 Bf8 Re7 Bd4 R1e3 Bb2 R3e4
nQr2k2/3n4/2Q1K3/Nq2B3/3P1Ppb/P1n1r1RN/PQ3nr1/bq2Q2B w - - 0 1 legal: proof: g4 a5 c4 h5 Nc3 d5 cxd5 hxg4 f4 f5 Rb1 a4 Ra1 a3 bxa3 Bd7 Rb1 Ba4 Rb4 Bc2 Rd4 Be4 Rc4 Bg2 Re4 Bf3 exf3 fxe4 Ke2 g5 Ke3 c5 h4 e5 f5 b5 h5 c4 d6 b4 d3 b3 h6 b2 f4 b1Q f6 g3 h7 g2 Rh3 g4 Qe2 Bg7 f7+ Kf8 d7 Na6 Na4 c3 Rh4 c2 Rh1 Qg5 Nc3 Rc8 Rh3 Nc7 Na4 Na8 Bb2 c1N Qe1 Ne2 Rg3 Nf6 Nh3 g1R Nb6 Rg2 Nc4 Nc3 Na5 Re8 d8Q Nd7 Ba1 Rg8 h8Q Qf5 Be2 Qb5 Kd2 e3+ Kc2 e4 Qf6 Rc8 Qc6 Bd4 Qe5 Rg6 Qb8 Re6 Qbb6 Bf6 Qd4 Bg7 Qb4+ Re7 Kb3 Be5 Bf3 e2 Bb2 e3 Ba1 Nd5 Bd4 Nc3 Bd5 Bf6 Be5 Bh4 d4 Qh7 Qc1 e1N Qb2 e2 Be4 Nd3 Bf3 Qb6 Kc4 e1B Be4 Nf2 Bf3 Nb1 Kd5 Qb5+ Kd6 Bd2 Q4c3 Bc1 Qe1 Nc3 Bd5 Qb1 Bf3 Rh2 Bh1 Ree8 Bf6 Re3 Be5 Rg2 Ke6 Bf6 Qc2 Bb2 Qce2 Ba1 Qb2 Kg7 f8Q+ Kg6 Qc7 Bh4 Qc6 Kh7 Qfd6 Kg8 Qb8 Kf8
n1N4Q/4K2b/q1prP1n1/1n4RN/R1r1B3/1P1NPQb1/N1k1P2q/5q1n w - - 0 1 legal: proof: d4 e5 dxe5 a5 g4 b5 c4 bxc4 b3 h5 gxh5 a4 Bh3 a3 Bb2 Qg5 Bf1 Qe3 fxe3 axb2 Kf2 Ke7 Kg3 d5 Kh4 f5 Kg5 c6 h4 f4 a4 d4 h6 c3 h5 f3 a5 c2 a6 c1Q a7 d3 h7 d2 h6 f2 Nc3 b1N Rh5 Bf5 e6 Kd6 Ra2 Kc5 Nh3 Kb4 Na4 Qa3 Nb6 Kc3 Nd7 Bd6 Qe1 Ne7 Nf6 Nd7 Qd1 Rad8 a8N Qa6 Nf4 Na3 Nc7 Nb5 Nd3 Nb6 Ra4 Na8 Bg2 f1N Bf3 Ng3 Qf1 d1Q Ncd5+ Kc2 Nc3 Nh1 Na2 g6 Qf2 Qf1 Bg2 Rhg8 h8N Be5 h7 Rd6 Bd5 Rg7 Qf3 Bh2 Kh6 g5 Ng6 g4 Kg5 g3 h8Q g2 Bc4 Rd4 Bd5 Rc4 Be4 g1Q+ Ng4 Rb4 Kf6 Rc4 Rg5 Rg8 Kf7 Bg3 Nf6 Qh2 Nh5 Rd8 Kf6 Rd6 Kf7 Ng8 Ne7 Bh7 Nc8 Ne7 Kf6 Ng6 Kf7 Ne5+ Ke7 Ng6+
B3K2Q/1Br1nNrP/r1rR4/qq1PQ3/2rPp3/kb6/2PB1b2/1B2bN2 w - - 0 1 legal: proof: b4 a5 g4 axb4 e4 d5 a4 e5 f3 h5 gxh5 c5 Ra3 Nd7 exd5 e4 f4 c4 Rb3 Ne5 fxe5 cxb3 Ke2 Kd7 Ke3 b5 Kd4 f5 h4 g5 h6 g4 d3 f4 a5 b2 h7 b3 h5 f3 e6+ Kd6 h6 g3 a6 f2 e7 g2 e8B b4 a7 Ne7 Ba4 Rg8 h8Q Rg7 h7 Ba6 Bd2 Bc4 Be1 Qa5 Nd2 b1R Ngf3 g1B Nh2 b2 Qh5 b3 Nhf3 Ra1 Bh3 b1R Ne5 b2 Bc8 Bb3 Bb7 Rc8 a8B Rc6 Nf1 Rd1 Qf5 b1R Bd2 Rb2 Bb5 Ra4+ Bc4 Rda1 Rh5 Rc7 Rg5 Rb4 Rg2 Rb6 Qf4 Rbc6 Rg5 Ra4 Rf5 Rba2 Nf7+ Kd7 Ke5 R2a3 Ne3 f1Q Rf6 Bf2 Re6 Rb4 Kf6 Raa4 Qh2 Rbb6 Qe5 Ra6 Bb5 Qe2 Nf1 Rc4 Ba4 Nc8 Bb5 Bb4 d4 Ne7 Bg5 Bbe1 Bd2 Rc8 Rd6+ Kc7 Ke6 Kb6 Kd7 Rc7+ Ke8 Qc3 Bc8 Ka5 Bcb7 Kb4 Ba4 Ka3 Bb5 R4c5 Bd3 Qa5 Bc4 Ba4 Bb3 Qeb5 Ba2 Rc4 Bb1 Bb3
1RQ3q1/1PNb2b1/3rq1NB/3b2bP/2P1rpb1/4Q2B/1NK2P1k/N1q2b2 w - - 0 1 legal: proof: b4 b5 g4 c5 a4 g5 h3 h5 Ra3 h4 Rd3 e5 axb5 c4 Rd4 exd4 d3 Nc6 Bb2 Nf6 Bc1 cxd3 Be3 Nh5 Bc1 Ne5 gxh5 g4 Rh2 g3 Rh1 Ng4 hxg4 Be7 Bg2 Bd6 Bf1 Bf8 Kd2 Ke7 c4 Kf6 e4 Kg5 b6 a5 e5 f5 b7 d5 b8Q g2 b5 h3 b6 Kh4 g5 h2 e6 a4 e7 a3 e8N a2 g6 a1B b7 f4 g7 Qf6 g8N Ra6 Qd6 Be7 Nh3 g1Q Qe1 Qe6 Qd7 Rd6 Qe4 Bg5 Qc6 Bd7 Kd1 d2 Nc7 Rh7 Na3 Re7 Kc2 d1B+ Kd2 d3 Bb2 d4 Nc2 Kg4 Qe3 Be2 Bg2 Re8 Ne7 Bf1 Ng6 Re7 Kd1 d2 Bc3 Bb2 Na1 Re8 Kc2 d1B+ Kb1 d3 Bg7 d2 Bh6 Bf3 Kc2 Bg7 Qcc5 Bd5 Qc6 Be7 Ng5 Bef6 Nf3 Bg5 Ne1 d1B+ Kb1 Re7 Nd3 B1f3 Kc2 B3e2 Bf3+ Kh3 Bg4+ Kg2 Bf5 Bg4 Nb2 Re8 Qd4 Kh3 Qe3+ Qg3 Rg1 h1Q Qcc5 Kh2 Qc6 Qf6 Qcc5 Re4 Qc6 Qe6 Qcc5 Bf3 Bh3 Bg4 Qc6 Bfe2 Rd1 Qe1 Rd3 Bf1 Ra3 Bf3 Ra8 Qgg4 Rh8 Qg8 Qcc5 Q4e6 Qc6 Bg4 Qcc5 Qh7 Rb8 Qhg8 Qc6 Bc8 Qe8 Bd7 Qc8 Qc1+
rn4k1/NB1B2B1/2Pbq1bB/bNQ3p1/K1R2P2/2n1p3/1PQr1r1P/6n1 w - - 0 1 legal: proof: e4 c5 g4 f5 exf5 a5 a4 b5 axb5 h5 d4 hxg4 dxc5 a4 Nh3 a3 Nd2 a2 Rb1 a1R Ng1 Rxb1 c4 Kf7 b6 d5 b7 e5 f6 g3 c6 g6 c7 d4 c5 g2 c6 d3 Nb3 e4 Kd2 Ra4 Kc3 d2 Ba6 Qe8 Nd4 Bf5 Kb3 Nh6 c8B Kg8 Nb5 Ng4 Nf3 g1B Nfd4 Bd6 Qc2 d1N Bd7 Nc3 Bh6 g5 f4 Ne5 Na7 Rf1 Ndb5 Nf3 Bg7 Rd4 f7+ Kh7 f8Q Rf2 Bh6 Bg6 Qf5 Rdd2 Qc5 Kg8 Kb4 Rfe2 Ka3 Bd4 Rc1 e3 Kb4 Ng1 Ka3 Ne4 Ka4 Qe5 Qd1 Qe7 Rc4 Rf2 Qc2 Bc3 Bf5 Nd7 b8B Ba5 Bb7 Qe6 Bc7 Nb8 Bb6 Qd5 Bd7 Qf7 Bd8 Qe6 Bf6 Nc3+ Kb3 Kh7 Bfg7 Rd8 Ka3 Kg8 Kb3 Na6 Ka3 Ra8 Kb3 Nb8 Ka3 Nd1 Ka4 Nc3+
BrQn4/N1r2p2/3q2rk/3P1K2/PP1bP1bb/1Q3N2/NRq2Bp1/3n2N1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 f4 b5 c4 e5 cxd5 a4 Qc2 Qe7 Qc6+ Qd7 Qb7 Qd8 a3 Nh6 Ra2 Ng8 Rb2 exf4 Rb3 axb3 a4 Qd6 Qxb5+ Qd7 Qb7 Qd8 Kf2 g5 Kf3 c5 Ke4 c4 d4 c3 h4 c2 e3 f3 h6 g4 d6 g3 h7 g2 h5 f2 d5 b2 h6 Bg4 Qa6 Bh5 Qc8 Nf6+ Kf5 Ne4 Nc3 b1Q Ba6 Bg7 d7+ Kf8 Bb7 Ra6 Na2 Nc3 e4 Rg6 Be3 c1B Ba8 f1R+ Bf2 Bg5 Qc4 Qd3 Qb3 Nc6 Rh3 Qc7 d8N Nd1 Re3 Qc2 Re2 Rg8 h8N Qd6 h7 Bd4 Rd2 Kg7 Re2 Re6 Ng6 Kh6 Ne5 Reg6 Nef3 Re1 Rd2 Re3 Re2 Rc3 Rd2 Bh4 Re2 Na5 Nc6 Nb7 Na7 Rc7 Rd2 Nd8 Re2 R8g7 h8Q+ Rh7 Qg8 Rh8 Qe8 Ne6 Qd7 Rb8 Qc8 Nd8 Rd2 Qd3 Rb2 Qc3 Ne5 Qc2 Nef3 Bg4#
1bn2Q1q/1PQ1q3/1BN1r2P/4PQNb/QR6/B5K1/1pr2pPq/4nk1r w - - 0 1 illegal: No proof kernel
1nbbB2q/1P1PBK2/3pRPNr/B3N2Q/5r2/1qp4Q/k4Pr1/1q2B2n w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 d4 d5 c4 dxc4 d5 Bd7 Nh3 Be6 Ng1 Bc8 b4 Na6 d6 Nb8 d7+ Kf7 Ra6 Nh6 Re6 Ng8 Rd6 cxd6 Ke2 e5 Ke3 g5 Ke4 a5 Kd5 c3 h4 e4 h6 a4 b6 a3 h5 g4 b5 e3 h7 e2 h6 e1R Nf3 g3 Nh4 a2 Na3 Ra7 Bd3 a1Q Bd2 g2 Nc4 Re3 Be1 Ra4 Ne5+ Kf6 Be2 Rg3 Bh5 Be7 Qf3 Qf8 Be8 Rf4 Qd3 Qb1 Rg1 Kg5 Ke6 Bd8 Qd1 Nf6 Rh1 Rg8 h8Q Na6 h7 Nh5 Qd3 Qh6+ Kf7 Rg6 Rg1 Rgg4 Qh3 Rg3 b7 Rgg4 b8B Ng3 b6 Nh1 Ba7 Qc2 b7 Nb8 Bb6 Qb2 Ba5 Qb3+ Nc4 Qh5 Bd2 Rg3 Rc1 g1Q Re1 Rg2 Re6 Qgb1 Be1 Qh6 Qe5 Qh5 h8B Qh6 Bg7 Qh8 Bf8 Rh6 Qh2 Kg4 Ng6 Kf3 f6 Nc6 Ne3 Ke2 Qh3 Kd3 Ng4+ Kc2 Qeh5 Kb2 Be7 Nb8 N4e5 Ka2
3nk2r/3Nq1pP/b1p5/1q2BQ2/1R2PP2/K2RQrn1/1RN2b1P/n4n1R w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 e5 e3 exd4 Bc4 f5 Kd2 f4 Bd3 f3 Be2 fxe2 Kc2 e1N+ Kb3 a5 f4 c6 h6 d3 d6 a4+ Ka3 d2 b4 Qc7 b6 Bh3 b5 Kd7 e4 Nf3 h7 Bf1 b7 Na6 b8R Nf6 b6 Nh5 b7 Nc5 Bb2 Ba6 Qb3 d1Q Be5 Ne6 Qe3 Qf1 Ra2 Nd8 Rb2 Nd2 Nf3 Ke8 Rb4 Qb5 d7+ Ke7 Rb2 Ng3 Rb4 Ndf1 Rb2 Ne6 d8R Kf7+ Rb4 Bc5 Rd3 Bd4 Ne1 Ba7 Nc2 Nd8 Nc3 Ke8 Nd5 Qd7 Nb6 Qe7 Nd7 Bb6 Qe2 Bf2 Qe3 Ra7 Rc8 Ra8 b8Q Ra7 Qb7 Ra8 Rb8 Ra7 Ka2 a3 Qc8 Rb7 Kb3 a2 Ka3 a1N Nf8 Ra7 Qf5 Rd7 Rb6 Rd6 Nd7 Rh6 Bd6 Rh3 Rb2 Qbe5 R6b4 Qb5 Be5 Nh5 Rb1 Rf3 Rb2 Nhg3
2bN1K2/R2P1Q2/rbQ4n/3r2q1/P1B1pb1P/b1p2nQ1/2k1PBQ1/3Nq3 w - - 0 1 legal: proof: c4 a5 g4 f5 a4 d5 cxd5 Be6 Qc2 Bd7 Qd3 Bc8 gxf5 h6 Qh3 h5 Ra3 h4 b4 axb4 Qxh4 bxa3 Qh3 Be6 Qh7 Bc8 f4 Kd7 Kf2 Kd6 Ke3 Kc5 Ke4 Kc4 Ke5 Kb3 d4 b5 d6 c5 d5 g5 d7 b4 Ke6 a2 Kf7 a1B f6 e5 f5 c4 d6 g4 Nh3 e4 Qg6 g3 Ng5 g2 Be3 g1B Bf2 Ra6 Bh3 Ne7 Ne6 Ra7 Qg2 Nd5 Nc3 Be7 Nd1 Kc2 Qg3 Qa5 d8Q b3 Qdg8 b2 Nd8 b1Q Qg2 c3 Q8g3 Nd7 Kg7 Rh5 f7 Ra6 f8Q N5f6 Qf7 Ng8 f6 Qab5 Be6 Ne5 Bc4 Bb2 h4 Bh2 d7 Bba3 Qfg6 Qa5 f7 Nf3 f8Q Nh6 Qc6 Bec5 Qf7 Bb6 Rf1 Rc5 Kf8 Rd5+ Bc5 Nd2 Rf6 Nf3 Rd6 Qc1 Bf2 Qd2 Qgg6 Bf4 Q6g3 Bc1 Rf6 Qe1 Rg6 Rd3 Re6 Qg5 Re5 Bb2 Rb5 Rd5 Ra5 Ra8 Ra7 Bbc1 Rc7 Ra6 Ra7 Ba3+
n2n3r/pq4P1/q3N3/k3P2Q/2R3p1/K1R1B1PQ/q2rQPb1/4qbQB w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 g4 h4 Bh6 e4 e5 d4 Bg5 hxg5 exd4 e5 f6 Nd2 f5 Ne4 fxe4 Kd2 Kd7 Kc2 c5 Kb3 Kc7 g3 Kb6 d6 h5 d7 d3 g6 c4+ Ka2 h4 b4 c3 g7 h3 Qe1 d2 Bg2 d1Q Nf3 c2 Ka3 e3 Ng5 h2 Qe2 Ne7 Ne6 Qc7 d8Q Nd5 Qg5 Nc6 Qh5 Ba6 Re1 Nd8 Bh1 Qd6 Bd2 Qb1 Rc1 Nc7 Qh3 Qc6 Ra2 Kb7 b6 Bd3 Ra1 Ka6 b7 Kb5 b8Q+ Qb7 Qc8 Rb8 Qh5 Na8 Qd7+ Kb6 b5 Rc8 Qh3 Rc6 Qe8 Rd6 Qeh5 Qa2+ Kb4 Qaa6 Ra4 Rd4+ Kb3 Rd7 Rb4 Ka5 b6 Rd5 Ka3 Rd4 Qf3 e2 Be3 e1Q Rc4 Bf1 Qe2 Rd2 Rc3 Qf3 b7 Qg2 b8Q Qgb7 Rb1 c1Q+ Rb2 Qcd1 Rb4 Qb1 Qd6 Qc2 Qc6 Qcb1 Qcg2 Qc2 Qg1 Qcb1 Be4 h1B Rbc4 Bhg2 Bf5 Bc6 Be4 Qc2 Bh1 Bcg2 Rb4 Qcb1 Rbc4 Qa2#
1Q1b3R/1bR1R1PQ/2b4B/bn1rPbnp/2B5/nK2PPN1/4p2R/3qk3 w - - 0 1 legal: proof: d4 g5 a4 b5 h4 gxh4 b4 f5 c4 a5 c5 e5 axb5 Nc6 b6 f4 b7 a4 b5 f3 Kd2 Ra6 Na3 Rb6 cxb6 Nb8 Nb1 Ke7 Nc3 Kf7 dxe5 Ke7 e3 Ke8 Nce2 fxe2 Kc3 Ke7 g4 Ke6 g5 Kf5 g6 Kg4 g7 d5 Rh3 c5 Bd2 h5 Be1 c4 Qc2 d4+ Kb2 c3+ Ka2 a3 Kb3 d3 Ka2 d2 Qc1 d1B Qb1 c2 Qb3 c1B Bb4 Nf6 Nf3 Ne4 Qc2 Ng5 Kb3 a2 Be7 Na6 b8Q Bb7 Nd2 Nc7 Ne4 Bd2 Ng3 Kf3 Rh2 h3 Rc1 Ba5 Bf6 Bc6 b7 Be7 b6 Nb5 Bg2+ Kg4 Bd5 a1N+ Ka2 Kh4 Qb1 Nc2 Bc4 Nca3 Qh7 Bc2 Kb2 Bf5 Kb3 Kg4 Rc3 Kf3 Rc2 Ne4 Bg5 Qd1 Bh6 Bf6 Qf8 Ng5 b8R Be7 Re8 Bd8 b7 Rg8 b8R Bb7 Rg2 h2 Re7 h1B Qe8 Rf8 Rh2 Rf6 Ra8 Rd6 Rc8 Rd5 Rcc7 Na7 Qb5 Bc6 Qb8 N7b5 Rc8 Bdc7 Rh8 Bd8 Rh3 Kg2 Rh4 Kg1 Rh2 Bhe4 f3 Bb7 Rh3 Kf2 Rh2+ Ke1 Bd3 Qc1 Rcc7 Qd2 Bc4 Qd1+ Ka2 Rd7 Kb2 Bec6 Ka2 Rd5 Kb2 Qd4+ Kb3 Qd1+
rbb2Q1Q/P2q3K/3rbPrQ/Np2b1B1/4b1pQ/6P1/B3P1k1/1n1N1R2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h3 axb4 Ba3 Nd7 Bc1 Ndf6 h4 g4 Nc3 Ne4 Nb1 Ng5 hxg5 Qd6 Bb2 Qd7 Bc1 Qd8 d4 f5 a4 e5 dxe5 f4 Ra3 Rb8 Rah3 Ra8 g3 f3 R3h2 Bd7 Rg2 fxg2 Rh2 Bf5 Rh1 Bc8 Kd2 Kd7 Ke3 h5 Ke4 c5 Kf5 b5 Kg6 b3 f4 h4 e6+ Kd6 f5 Ke5 f6 Ke4 a5 h3 a6 h2 d6 b2 a7 c4 d7 c3 e7 c2 Nf3 g1B Bg2 Bd4 e8Q+ Be5 Rf1 h1B Qd2 Bd6 Qf8 Rh6+ Kg7 Bb8 g6 Qe8 d8Q Ne7 Qg5 Be6 Qdd2 Nd5 Qh4 Nc3 Qdg5 Qc8 Nfd2+ Kd4 Bb7 Be4 Nc4 Qc6 Bd2 c1R Na5 Rd1 Bf4 Qc8 Bd5 Qe8 Ba2 Qd7+ Qf7 Rd2 Kg8 Rd3 g7 Rg6 Kh7 Bb7 g8Q Bc8 Qh8 Ke4 Bb3 Rd6 Qgh6 Kd4 Ba2 Ke4 Na3 b1B Bg5 Bc2 Qe7 Nb1 N3c4 Kd4 Nb2 Be4 Rf4 Ke3 Nd1+ Kd2 Rf5+ Ke1 Qeg7 Bf3 Qf8 Kf1 Rf4 Kg1 Qh8 Bfd5 Rf1+ Kg2 Qf7 Be4 Qe7 Bf7 Qef8 Be6+
3k4/1q1N1BQq/n3qr1B/2P3P1/rPRpbP1B/1B3r2/1p5Q/Rr2b2K w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 axb5 c4 d4 Kf7 d5 Ba6 Nd2 Bb7 Nb3 cxb3 c4 Nc6 dxc6 Bc8 c5 Ke8 g4 a5 f4 h5 Kf2 e5 Kg2 d5 c7 a4 g5 h3+ Kh2 e4 b6 a3 f6 h4 b7 b2 b8Q e3 Bd2 a2 Bb5+ Qd7 Bc1 e2 Qa7 e1R Rb1 a1R Bc4 Rf1 Be2 Rh6 Be3 Qe6 Qb3 Bg7 Ba6 Rf3 Bc4 Ne7 Rc1 Nc6 Qc2 Rb1 Bb3 Nb8 Bf2 Bb7 c8B Kd8 f7 Rf6 f8B Na6 Be1 Bh8 Bh6 Bc6 Qg7 Ra7 Ne2 Ra8 Kg1 h2+ Kg2 Ra7 Ng3 Ra8 Nh5 Bb7 Qf2 h3+ Kf1 Bc6 Rc4 Ra7 Rg1 h1Q Bd7 h2 Be8 Nb8 Bf7 Ra4 Bd1 Na6 Bb3 Rh3 Qh4 Qhe4 Kf2 Qh7 Kg2 Rf3 Qh3 Rc3 Bh4 h1Q+ Kf2 Q1e4 Qh2 Rf3+ Kg2 Bb7 Kh1 Ba8 Be8 Bc6 Qg8 Qb7 Qg7 Qh7 Bf7 Be8 Bg8 Bg6 Bf7 Be4 Bg8 Rf7 Nf6 Rf8 Nd7 Rf7 Qg6 Bc3 Qg7 Rf6 Bf7 d4 Nb8 Rc1 Rd1 Be1 Nd7 Rcc3 Rb1 Rc1 Ra1 Rb1
2k2nB1/1NN2q1b/1RKq1qrP/1RPQP3/r3P1rp/2Q2N2/2Np1b2/1q6 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1K4/b1NN2B1/BBP2Prr/2p2n2/B3r2R/1Q2nqPn/1r1P3p/1k1q4 w - - 0 1 legal: proof: e4 b5 h4 c5 b4 f5 exf5 g5 bxc5 gxh4 a4 b4 c4 d6 c6 Ba6 c7 Nf6 c5 Bc4 c6 Bb5 axb5 Ng8 Ra2 Nh6 Rc2 Ng8 Rc5 dxc5 Ke2 Kf7 Kf3 Kf6 Ke4 h5 c8B e5 f4 a5 b6 a4 g3 h3 b7 b3 Qc2 b2 Qc3 h4 Be6 h2 Bb3 a3 Be6 a2 Qa5 a1Q Bd3 h3 Bf1 Ne7 Qb5 Qd5+ Ke3 e4 Qb3 Na6 b8Q Nc7 Bg8 Rh6 Nc3 b1R Ba6 Rb2 Nb5 Qf7 Nf3 Ncd5+ Kf2 Rg6 Ne5 e3+ Kf3 e2 Ke4 Ne3 Nc7 e1R Bh7 Rh6 Bg8 Qh5 Bgc4 Qd1 Bcb5 Qa3 Ba4 Re2 Q8b7 Rd8 Qb8 Rd6 Nd7+ Kg7 Ke5 Rdg6 Rg1 h1N f6+ Kh7 Ke6 h2 f5 Nf2 Rf1 Nh3 Rf4 Bg7 Kf7 Re1 Ke8 Bh8 f7 Be5 f6 N7f5 Nb5 Bc7 f8B Bb6 Bg7 Ba7 Rh4 Re2 Qc4 Qd3 Qf7 Qe4+ Kd8 Qf3 Qd5 Nc2 Qdd6 Kg8 Rb4 Kf7 Rh4 Rb1 Qb6 Re4 Qd3 Ke6 Ba3 Rb2 Bb4 Nce3 Qc3 Kd5 Ba5 Ne7 Qe5+ Kc4 Qeb8 Kd3 Q6b7 N7f5 Qb6 Rb3 Nc7+ Kc2 Qb5 Kb1 Bb6 Rb2 Qc4 Ka1 Qb3 Kb1
b1Rr3n/BPPpb1P1/QbB3K1/1n1n2R1/5k2/BpP1q3/2QN4/1B1n2q1 w - - 0 1 legal: proof: e4 a5 b4 b5 h4 f5 exf5 g5 hxg5 Ra6 Nc3 Rc6 Nd5 Rc3 dxc3 c6 a4 bxa4 b5 c5 Nb4 cxb4 c4 Nc6 c3 Nb8 Ke2 Kf7 Kf3 h5 Kf4 e5+ Ke4 a3 f4 h4 g4 a2 b6 b3 g6+ Kf6 g7 h3 c5 a4 c6 a3 c7 h2 Be3 Ne7 g8B Qe8 Bh7 Nbc6 Nf3 Nd8 Qc2 Nd5 Nd2 Be7 Rg1 h1N Bb5 Nf7 Bc6 Bb7 Bd4 Ba8 g5+ Kg7 g6 Kf6 Raf1 a1Q b7 a2 g7 Rf8 Ba7 Nf2+ Kf3 Qb1 Rg5 Nd1 Kg4 e4 Kh5 e3 Bg6 e2 Rf2 e1B Rh2 Bb4 Rh1 Ke7 f6+ Ke6 f5+ Ke5 Bh7 a1N Kg6 Kf4 Rh2 Nd6+ f7 Bf2 f6 Qe3 Rh3 Rg8 f8Q Nf7 Qe7 Ba3 Qe6 Rd8 Rh1 Be7 Rf1 Nd6 f7 Qc1 f8B Nf7 Bb5 Qb1 Qa6 Qc1 Bc6 Qb1 Qcd3 Nc2 Re1 Nd4 Qc2 Nb5 Rf1 Bc5 Rh1 Bb6 Ba3 Bh4 Re1 Qg1 Re8 Qc1 Nc4 Qce3 Nd2 Rc8 Re5 Rg8 Re8 Rh8 Rc8 Rd8 Rg3 Bf6 Rg5 Be7 Qd3 Re8 Kh5 Nb4 Bf5 Nd5 Kg6 Rd8 Qb1 Nfd6 Qc1 Nf7 Bb1 Qeg3 Qb2 Q3e3 Qc2 Nh8+
n1RBq3/6Bq/4k2K/Qn6/BPnp1Pp1/N1r3Qp/1PrP4/qB1R1b2 w - - 0 1 illegal: No proof kernel forced: bxDB
BB1B4/1rnb1q2/4P1Np/2k2Bq1/P1nRp2p/r1P5/2K1Q1nP/4QRq1 w - - 0 1 legal: proof: e4 d5 exd5 c5 f4 e5 b4 g5 d4 a5 dxc5 axb4 Nd2 e4 Ndf3 Bg7 Nh4 Be5 fxe5 gxh4 Kd2 Kd7 g4 b5 d6 Kc6 g5 f5 c3 h6 g6 f4 d7 f3 g7 f2 e6 b3 a3 b4 Ne2 b2 Qe1 b1Q Bh3 f1Q Nf4 b3 Bf5 b2 Ng6 Nf6 g8Q Na6 Kd1 Kd5 c6 Kc5 c7 Rh7 Qe8 Qf2 Rf1 Nh5 Qf7 Qg8 d8B Bd7 c8B Nc7 Bb7 Nf4 Qf6 Ra6 Ba8 Ng2 Qg5 Qf7 Qg4 Qf4 Qge2 Qg5 Ra2 Qa1 Kc2 b1N Bf4 Nd2 Rb2 Ra7 Rb4 Nc4 Ra4 Rb7 Be5 Rb3 Rb4 Rg7 a4 Ra3 Bf4 Nb6 Rd4 Nc4 Q1d2 Qe1 Bg3 Qf2 Qde1 Qg1 Be5 Na6 Bb8 Nc7 Qg3 Rh7 Qge1 Qff6 Qd3 Nd5 Qed2 Bc8 Q2e3 Rb7 Qc1 Bd7 Qe1 Nc7 Qde2 Qf7
K1n5/2pPPb2/2bR1BQ1/1q2pp1Q/1P1P1N1r/8/1bQ3rR/2NQqqk1 w - - 0 1 illegal: No possible last move, all moves rejected
2R1bn2/1NQ1P2n/3r2qp/1NQP3n/1n2P3/1Rp2p1N/1P1K3B/1kN2rn1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 e5 e3 e4 Bd3 exd3 e4 Bg7 Nc3 Bh6 Nb1 Be3 fxe3 Qd6 Ra4 Qf6 Ra1 Qd8 g4 Kd7 e5 f5 e4 a5 e6+ Kd6 e7 c5 g5 a4 b6 h6 b7 c4 g6 f4 g7 f3 Bd2 a3 Ne2 h3 Ba5 h2 Bd2 a2 Qb3 Nd7 b8N Nf8 Nc1 Qb6 Qd1 Nf6 g8Q N6h7 Qg1 Bd7 Nc6 Be8 Ne5 Rg8 Na3 Ra6 Bf4 d2+ Kf2 Rg2+ Ke3 Rf2 Qde1 Rf1 Qeg3 d1N+ Kd2 Nc3 Ng4+ Kd7 d6 Kc6 d7 Ne2 Qe3 Ng1 Nb5 Ra7 Qc3 Ra6 d5+ Kc5 d8N Qg6 Qd4+ Kb4 Nf2 Rd6 Nh3 Ka4 Nb7 Kb4 Rb1 a1N Qc5+ Ka4 Be5 Nc2 Qf4 Nb4 Qg3 Ne2 Rg1 h1N Qh2 Nhg3 Ra1+ Na2 Rg2 Ng1 Re2 Nh5 Re3 Bc6 Rb3 Be8 Na3 Nb4 Ra2 Rb6 Bb8 Re6 Qhc7 Rf6 Ra1 Rd6 Nb5+ Na2 Rd3 Rc6 Q7b6 Re6 Bh2 Rd6 Qcc7 Kb4 Re3 Ka4 Nd3 Kb3 Qbc5 Nb4 Ra8 Rc6 Rb8 Ka2 Nc1+ Kb1 Rb3 Rd6 Rc8 c3+
1r3B2/1QRn3K/1Pb1p3/RP1pP3/1B1bn2r/b2P4/n1Nnp1B1/1k1B1Q2 w - - 0 1 legal: proof: g4 b5 b4 c5 a4 h5 axb5 Ba6 gxh5 Nf6 b6 Bd3 b5 Ng8 e3 Be4 Qg4 Bb7 Qb4 Bc8 f4 cxb4 e4 e6 e5 Ba6 Nc3 f5 Ne4 fxe4 f5 Kf7 f6 Qe7 fxe7 Bc8 Ke2 g5 Ke3 a5 e8B+ Ke7 c4 d5 h4 a4 c5 a3 c6 g4 Kf4 b3 Kg5 g3 Kg6 b2 c7 b1N h6 g2 h7 e3 h5 a2 h6 Bd7 c8Q Nc3 Qb7 Nf6 Nf3 g1N Bg2 Nfe4 Ne1 Nf3 Nc2 Ra4 Bf7 e2 Ba3+ Rb4 Bg8 Ke8 Rhc1 Rc4 Be7 Bc6 Bb4 Bc5 Kg7 Nd7 Bf7+ Ke7 Bg6 Rb8 h8Q Bd6 h7 Bc5 Rab1 a1B Kh6 Bb2 Ra1 Na2 Qhc8 Bc3 h8B Bd4 Kh7 Bd6 Bf5 Kf7 Bg7 Be7 Bf8 Bec5 Bc3 Ba3 Qd8 Nf2 Bd3 Ne4 Qh4 Rb4 Qh1 Ra4 Qf1 Rb4 Kh8 Kg6 Kg8 Kf5 Kh7 Ra4 Bc4 Kf4 Bb3 Rc4 d3 Rb4 Ne1 Ke3 Bd1 Rc4 Ba5 Rb4 Nc2+ Kd2 Kh6 Kc3 Kg7 Kb3 Kh7 Rc4 Bab4 Kb2 Ne3 Nfd2 Rc3 Nc1 Ra2+ Kb1 Nc2 Bb2 Ra7 Na2 Rca3 Bc1 R3a5 Bcb2 Qa6 Bc1 Rc7 Ba3 Qb7 Bf2 Nd4 Nd6 Nc2 Rh4+ Kg7 N6e4 Kg6 Bd4 Kg7 Rf4 Kh7 Rh4+
R5K1/1P1Pn1b1/3bQ1pq/1PnQ1pNn/1k4n1/1q1R2PR/2pR3B/2N2b2 w - - 0 1 legal: proof: h4 b5 c4 a5 a4 c6 h5 d5 axb5 dxc4 h6 e6 Nc3 g6 Nb1 f6 Qb3 Ra7 Qd1 Rg7 hxg7 Kd7 Rh6 Ke7 Rh1 Ke8 d4 Qd5 e3 Ke7 Be2 Kd8 Bf3 Qd7 d5 Ke8 d6 Qd8 Bd5 exd5 f4 h5 e4 h4 e5 Rh5 e6 Re5+ fxe5 Qd7 Bg5 Qc7 Bc1 Qd8 Ke2 a4 Kf3 a3 Kf4 d4 b4 c3 e7 Kd7 e8R h3 b6 a2 b5 c5 b7 h2 Nf3 d3 Bb2 c4 Qe2 d2 Qe4 d1N Ng5 c2 Qd5 c1Q+ Nd2 Ne7 g8R Ne3 Nb3 c3 Rd1 h1N Rd2 c2 Rh8 f5 Rh3 Ng3 Bd4 Qa3 Rad1 a1B Nc1 Ng4 Bg1 Qb3 Bh2 Na6 Rd3 Nc5 R1d2 Bg7 Rg8 Qf8 e6+ Ke8 Rgh8 Bac3 Rg8 Bb4 Rgh8 Bd7 Rg8 Bc6 d7+ Kd8 Rgh8 Kc7 Rg8 Nf6 Ke5 Ngh5 g3 Kb6 Kd6 Ka5 Ke5 Nc8 e7 Ka4 e8Q Ne7 Qef7 Ng4+ Kd6 Ba3 Qfe6 Kb4 Rh8 Bd4 Rg8 Qh6 Ra8 Bg7 Qf6 Na4 Ke6 Nc5+ Kf7 Qb1 Qfe5 Qb3 Qde6 Bg2 Q6d5 Bf1 Qee6 Bab2 Rd8 Bbe5 Ra8 Nc6 Kg8 Bf4 Ne2 Bd6 Nc1 Ne7+
5nbB/3N2p1/4r3/KRP1bP1p/1B1qBQ2/3nnPp1/2k2BpP/4R1rQ w - - 0 1 illegal: Other
1NRQBq2/p1P1b3/1R1Pnr2/1BrP3P/p3bQB1/n3ppK1/3k4/r5B1 w - - 0 1 legal: proof: e4 c5 f4 b5 b4 d5 bxc5 Ba6 exd5 Bc8 a4 bxa4 g4 h5 f5 g6 Na3 Ba6 Nc4 Bb7 Ne5 Ba6 fxg6 Bb7 g5 Bc8 Ng4 hxg4 Kf2 Kd7 c4 f5 h4 e5 d4 f4 g7 e4 g6 f3 h5 Ne7 g8Q Rh7 d6 Kc6 d5+ Kb7 c6+ Kb6 g7 Kc5 c7 Kb4 c5 Kc3 c6 Nd7 Rb1 Rh8 Bb5 Ng6 Be3 Nc5 Kg3 Bf5 c8B Be7 Qd4+ Kc2 Qe5 Ne6 Ne2 Qf8 Bg1 e3 Nd4+ Kd2 Qf4 Rh6 c7 Be4 Nc6 Ne5 Nb8 Nc4 Qh8 Na3 g8B Rf6 Bf7 Qg8 Bfe8 Qf8 Kh4 g3 Rb4 g2 Kg3 Kc3 Rh4 Kd2 Rg4 Nc5 Rg8 Ne6 Nd7 Rb8 Rb3 Rb6 Nb8 Rc6 Rb4 Ng7 Bg4 Rc3 Bbc6 Rc2 Rb6 Ne6 Bb5 Rc5 Bed7 Qf7 Rc8 Qg7 Qd8 Qf7 Bf2 Qf8 Be8 g1R+ Kh3 Re1 Bg1 Rd1 Kg3 Ra1
n3K3/q2pQR1p/1B1n4/2p1Q1P1/kBQ3bQ/r1b3P1/q2P1Pp1/rN4N1 w - - 0 1 legal: proof: c4 a5 a4 b5 b4 Ra7 h4 Ra8 Ra3 Bb7 Rb3 Bc6 cxb5 Bf3 b6 Bb7 b5 Bc8 Rb4 axb4 e4 g5 hxg5 f5 g3 f4 Qc2 c6 Bh3 f3 Bg2 fxg2 Qd1 Qc7 Rh4 Qf4 Rh1 Qf5 exf5 Bg7 Nh3 Bh6 Ng1 Bf8 Ke2 e5 Kf3 e4+ Kf4 c5 Ke5 e3 b7 e2 b6 e1Q+ Qe2 b3 f6 b2 a5 Kd8 f7 Ra6 Rh4 Nf6 Rf4 Bg7 f8Q+ Ne8+ Kf5 Ra7 a6 Bc3 Qc4 Ra8 a7 Na6 b8Q Nc7 b7 Qd1 Qd4 Qa4 Qc4 Qa1 Qg7 Qa5 Qe5 Nd6+ Kf6 Re8 Qed4 Re1 Kg7 Qa6 Kf8 Rf1 Rf7 Re1 Na3 b1Q Qh4 Qa2 Bb2 Ra1 Nb1 Nd5 Ba3 Nb6 Bb4 Q6a5 Rf4 Q5a3 Kg8 Qa5 Qc7+ Ke7 b8B Bb7 Rf6 Bd5+ Rf7+ Ke6 Kf8 Ke5 Qc8 Bf3 Bc7 Bg4 Qd8 Qa6 Qf4+ Kd5 Qe5+ Kc4 Qde8 Nbc8 Q8e7 Kb3 Bd8 Ka4 Bb6 Rb8 a8Q Qa7 Qae4 Ra8 Bd8 Nb6 Q4d4 Qb7 Qc4 Ra5 Bc7 Na8 Bb6 Qa7 Qcd4 Kb3 Qdf4 Ra3 Qfd4 Ne4 Ke8 Ka4 Qc4 Nd6+
4r1b1/B3N3/kB1n2p1/r1q2R1p/Bp1B4/PPNP3b/Kr2p1P1/3b1QQ1 w - - 0 1 legal: proof: f4 b5 e4 a5 f5 a4 f6 a3 b3 g6 Nc3 Bg7 fxg7 Ra4 Rb1 Nc6 Rb2 d5 exd5 axb2 h4 Rf4 d4 Ne5 h5 Nd3+ cxd3 Rf3 h6 Rf2 Be3 Nxh6 Bc1 Ng8 a3 Kd7 d6 Kc6 d7 Kb6 d5 b1B d6 f5 Rh3 h5 Nf3 c5 Ng5 e5 Nge4 b4 Be3 f4 Rh2 f3 Qd2 Nh6 Kd1 Nf5 Kc1 Qf8 Kb2 Bc2 g8Q Ka6 d8B c4 d7 Bd1 Rh1 Nd6 Ng3 e4 Bd4 e3 Be2 Rf1 Qe1 f2 Rh3 Rg1 Nf5 f1B Bf3 Bfe2 Bg4 Bf3 Qf7 e2 Ne7 Bd5 Qff1 Bg8 Ka2 Qf5 Qef2 Qc5 Bb6 Rh1 d8B Bce6 Nb5 c3 Ba7 c2 Rf3 c1R Bdb6 Bf5 Rf4 Rc4 Bf3 Bh3 Rf5 Rc1 Bc6 Rb1 Q1e1 Rf1 Qg1 Rf3 Nc3 Re3 Nc8 Re8 Qef1 Rh7 Ba4 Rb7 Bd8 Rb5 Ne7 Ra5 Bdb6 Rb2+
K2Q4/1n1prpb1/5qk1/p4nNb/PB3n2/P1RR1QN1/1P2NPp1/5qN1 w - - 0 1 legal: proof: g4 a5 d4 b5 a3 h5 g5 e5 dxe5 c5 g6 c4 Nd2 c3 Nb1 Ra6 Bh3 Rb6 Bg4 hxg4 Qd5 b4 Nd2 b3 cxb3 Rb4 Qd3 Ra4 bxa4 c2 Nb1 Bb7 Qd1 Bc8 Nd2 Be7 Nc4 Bf8 Bg5 c1Q Bd2 Qb1 Bc1 Qxg6 Nd2 Qb1 e4 g5 Ke2 g3 Ke3 g4 Kd4 g2 h4 g3 h5 Bb7 h6 Qc7 e6 Bc8 e5 Qb7 h7 Qf3 Nf1 Qg6 Rh3 Qff5 Bd2 Qfg5 Qf3 Q5f5 Rc1 Qgh5 Rc3 Ke7 Kc5 Na6+ Kb6 Bb7 Ka7 Nc5 Rd3 Ba8 Bb4 Nh6 Rc3 Rg8 h8N Bg7 Rd3 Qf6 Ng6+ Ke8 Kb8 Nb7 Nf4 Nf5 Nfe2 Qg4 Ka7 Qc4 Kb8 Kd8 Ka7 Re8 e7+ Kc7 e6 Qc1 Nd2 Qf1 Ne4 Kc6 Rc3+ Kd5 Ng5+ Ke5 Rd3 Qh6 Rc3 Kf6 Rd3 Kg6 Rc3 Rd8 e8Q Rc8 Qe7 Re8 Qd8 Qh4 e7 Qf4 Rh4 Qe5 Rd4 Qf6 N1h3 g1N Rdd3 g2 Kb8 Rf8 e8N Rg8 Nd6 Re8 Nde4 Re7 Nd4 Ne2 Ng3 Nf4 Ng1 Nbd6 Nde2 Be4 Qb6 Nb7 Qd8 Bc6 Ka8 Be4 Qe3 Bf3 Qe4 Bg4 Qf3 Bh5
1Q4B1/p1RP4/1KB1p2p/2Pbr2n/1k3B1P/1b4P1/Q1R2pnb/2BqN2q w - - 0 1 illegal: Other
3n4/P1p4p/k1P1Qn1K/3P2R1/1RnrN1bp/q2B2pn/4N1P1/1NqQN3 w - - 1 2 legal: proof: d4 g5 h4 gxh4 b4 a5 bxa5 f6 Bg5 fxg5 e3 d5 Ke2 b5 Ke1 e5 Qe2 Bg7 Qd1 e4 Qf3 Be5 dxe5 d4 Qg4 d3 Qd1 Ra6 Be2 Rd6 Bf1 Rd4 exd4 Bf5 Ne2 Bg4 Ng1 Bc8 Kd2 Kd7 Ke3 Kc6 c4 Kb7 a4 d2 f4 b4 f5 g4 Kf4 b3 f6 e3 Kg5 e2 e6 e1N a6+ Kb6 a5+ Ka7 e7 b2 e8N g3 c5 Nh6 c6 Ng4 Nd6 Bd7 Nf3 Be6 Bd3 Qc8 f7 Ne5 f8N Nc2 Ne4 Ne3 Ng6 Rd8 Ne1 Bg4 Kh6 N3c4 Nf4 Nbd7 Ne2 Nf6 Rf1 Qa8 Rf5 Rd7 Rg5 Rd5 Ra4 Nf7+ Kg7 Nd8 Rb4 Rd6 Kh6 Rd7 Na3 b1Q d5 Qc1 Nb1 Re7 Qc2 d1N Qd2 Nf2 Qd1 Nb7 Qa4 Nh3 Qd1 Kb8 a7+ Kc8 a6 Nd8 Qc2 Re5 Qa4 Rf5 Qd1 Rf4 N4c3 Rd4 Ne4 Qb7 a8Q+ Qb8 Qa7 Qa8 Qc5 Qa7 Qe7 Qa8 Ra4 Kb8 Qe6 Ka7 Rb4 Qb7 Rb2 Qb4 Rb3 Kb6 a7 Ka6 Rb2 Qa5 Rb4 Qaa3
2B1bn2/4Q1pp/8/2P1N1pr/QN1kNR1P/nP2bpPN/1p1KBr2/4b3 w - - 0 1 illegal: No possible last move
3R1NK1/QR1r1Bnq/2n1r2N/P2kbn2/n2bp2P/1n2P3/2P1NN1Q/3b1q2 w - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 f4 axb4 fxg5 h6 g6 Ra7 g7 Ra8 g4 Nf6 g5 Ng8 g6 Qb6 Bf4 Qd8 Bg5 hxg5 Kf2 e5 Ke3 Ke7 Ke4 Ke6 a4 b5 h4 d5+ Ke3 f5 c6 f4+ Kf3 e4+ Kg4 b3 c7 d4 a5 f3 Nd2 b4 Rh3 f2 Rd3 b2 Ra2 b1N Rc3 b3 Rh3 d3 Ra4 b2 Rf3 Rh6 Qc1 Nc3 Nb1 d2 Ra3 d1N Qd2 Na4 Rfd3 Ne7 g8N Nf5 g7 Qe8 Nf6 Bd6 g8N Be5 Nh3 Ra7 Nd7 Ng7 Nc3 b1N Rb3 Nc6 Rb7 Qg6 Qf4 Nd2 Qh2 Nb3 Rd2 Rh7 Nh6 Ra6 Rd3 Ndb2 Rd4 Nc4 Rd1 Nd6 e3 Bd4 Bd3 f1Q Ne2 Ndf5 Nf8+ Kd5 Nf2 Bd7 c8Q Be8 Qg2 Bd7 Qc7 Be6 Kh3 g4+ Kh2 Kc5 Qf3 Bc4 Qg2 g3+ Kh3 Ne6 Ng1 Bf6 Qg7 Ne5 Ra7 Rd6 Qd7 Nc6 Qe7 Ba6 Bc4 Bg7 Bd5 Be2 Rd4 Bd1 Ne2 Bh8 Rd7 Rf7 Rd8 Bg7 Rb4 Bd4 Qb7 Rdd7 Qa7+ Kd6 Rb7 Rf6 Bc4 Neg7 Bg8 Re6 Bf7 Nh5 Rbb8 Kd5 Rb7 Qg1 Qh2 g2 Qf4 Qf1 Qh2 Qf6 Kg4 g1B Qg2 Bh2 Qg1 Bb8 Qh2 Qe5 Kg5 Bd6 Qg2 Qh2 Qg3 B6e5 Qh3 Qhg2+ Qg3 Nf6 Kg6 Ne8+ Kh7 Neg7 Qh2 Qg6+ Kg8 Qh7+
B7/NK1P2n1/bBrbP2p/q1R3n1/2NN2PP/2bn1Qr1/NQ2nn1k/1q6 w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 d5 cxd5 g5 Ra3 g4 Rf3 gxf3 b3 Bf5 b4 Bc8 Kf2 Kd7 e4 Kd6 h4 Ke5 g4 c5 d3 a5 b6 f5 d6 c4 b5 a4 b7 c3 b6 a3 d7 h6 Nh3 c2 Qe1 a2 Qb4 a1B Na3 Bd6 Be3 c1N Nc2 Ne2 Qc4 Ne7 Nd4 Ra3 Qc6 Bc3 Bg2 Na6 b8N Nb4 b7 Qa5 d8N Bd7 Ng1 Rf8 Na6 Rf6 b8Q Re6 Qa4 Bb5 Qb3 Rg6 Qb7 Rf6 Qb2 Rb3 Kf1 f2 Bf3 Ra3 Kg2 f1N Qc6 Re6 Qb7 Nh2 N8c6+ Kf6 Na7 Ke5 Kf2 Rb3 Bg2 Nf3 Rh3 Ng5 Ngf3+ Kf6 Ne5 f3 Rh2 f4 Nc4 Nf5 Rh1 Ng7 Rc1 Be5 Rc2 Rc6 Bh1 Bd6 e5+ Kg6 e6 Kf6 Nf5 Ra3 d4 Rb3 d5 Nd3+ Kf1 f2 Kg2 f1N Nb4 Nd2 Nd4 Nde4 Na2 Nef2 Qa8 Bdb4 d6 Ra3 d7 Bd6 Nf5 Rb3 Bb6 Ra3 Nd4 Rb3 Nd2 Ke5 Nc4+ Ke4 Rc1 f3+ Kf1 Bd2 Qe8 Rc8 Ndc6 Kf4 Bd4 Kg3 Na3 Kh2 Qf8 Nc3 Bb6 Nfh3 Nd4 f2 Ba8 Ne2 Rc5 Ne1 Nc4 Rg3 Qf6 Bc3 Qf3 Nef4 Qc1 Ned3 Qb2 Nd5 Ke2 N5f4+ Ke3 Ne2 Be4 f1Q Ba8 Nh7 Ke4 Qb1 Kd5 N7g5 Bd8 Nhf2 Bc7 Ba6 Kc6 Bb5+ Kb7 Be7 Nc1 Bd6 Bb6 Rc6 Na2 Ba6+
B1K1Brb1/bp2QqP1/n3bR1P/1P2P2k/NB1brb1N/q6n/1Q6/2B2n2 w - - 0 1 illegal: No proof kernel
b1K5/3q1n1r/1BQRP3/3PN2P/Rp1b2q1/n1Q1qBk1/rP2Q2r/Q2r1r2 w - - 0 1 illegal: No proof kernel
NK4BR/1q2qB2/3n2pB/r4bPk/R1rPPnn1/4r1QP/3b2b1/1BrQ4 w - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h6 cxd5 Na6 Nc3 Nb8 Ne4 h5 g5 Ra4 Nf2 Ra8 Ng4 hxg4 Kf2 b5 Kg3 c5 Kf4 f5 d4 Kf7 a4 Kg6 e4 b3 e6 b2 Ke5 b1R a5 f4 e7 g3 a6 g2 a7 b4 h3 b3 d6 b2 d7 c4 Kd6 c3 Ne2 g1N Ra2 f3 Qb3 f2 Qc2 Na6 Ra4 Nc5 Qd1 c2 Nc3 Nh6 Nd5 Ng4 Nc7 Kh5 Bd3 Ne2 Rf1 g6 Bf4 c1R Be5 Rg8 Bg7 Nf4 Bh6 Qe8 d8Q Bf5 Qb8 Rc3 Qb5 Rbc1 Bb1 Re3 Qb8 Qd8+ Kc6 Nb7+ Kb6 Qd7 e8B Qe7 Bf7 Nd6 Ka6 Rg7 Qbb3 Rc8 a8B Rg8 Ka7 Rh8 Rh1 f1B Bad5 Bg2 Rf1 Rc4 Bg8 Rh7 Bdf7 Rh8 Ba2 b1Q Qc3 Qb5 Bb1 Rh7 Qce1 Qbd7 Qg3 Ra8+ Kb6 Ra5 Na8 Rc1 Bb3 Rf7 Rf2 Rf6 Bbf7 Re6 Rc2 Ree5 Rc7 Rec5 Rc8 R5c4 Nc7 Rb5+ Ka7 Ra5+ Kb8 Ne8 Na6 Qe5+ Nc7 Bb4 Bh7 Qee7 Na8 Nd6 Rh8 Bd2 Bhg8 Qb7#
2BQ2Q1/1nb4p/BN2Kb2/2qn3P/rPrr1bbB/1kqP4/1P2R3/1n3BR1 w - - 0 1 legal: proof: c4 b5 f4 e5 fxe5 g5 a3 d5 Nc3 dxc4 Nd5 b4 Nf4 gxf4 axb4 Qd5 Ra4 Qd4 Ra1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ e6 c5 Kf5 a5 h4 c3 g4 Kc4 e4+ Qd3 h5 a4 g5 f3 g6 a3 g7 c2 Ra2 f2 Rh3 Bd6 Rh2 Bb7 e7 Na6 e8B Kb3 Bb5 c4 Ne2 c3 Rh3 Nc5 Bc6 Rc8 Nf4 Bc7 Qg4 Ne7+ Kf6 Rhd8 g8Q Nd5+ Kg5 f5 Be2 f1Q e5 Qf2 Ra1 a2 Rb1 a1R e6 Ra4 e7 Ba8 e8B Nb7 Qg2 Qc5 Rh2 Qdd4 d3 Rd6 Ne6 f4 Kf5 f3 Nf4 f2 Q2g5 f1N Qd8 Nd2 Bcd7 Qg7 Ra1 Nb1 Bf1 Qgd4 Be3 c1B Bf2 c2 Bh4 Qdc3 Re2 Bd2 Be6 c1B Bb5 Be3 Ba6 Bd4 Bd7 Bf6 Be6 Ba5 Bd7 Rcc6 Bc8 Bc7 Ne6 Bf4 Nf8 Qa7 Nd7 Rc4 Qe6 Qc5 Qeg8 Re6 Nb6 Ree4 Qg1 Red4 Ke6 Nd6 Qg5 Bc6 Qgg8 Nb7 Na8 Ne7 Nb6 Bf3 Bh3 Nd5 Bg2 Na3 Rg1 Nb1 Bf1 Bg4+
1q3nN1/3bqPp1/P5rQ/1Nb3q1/B1q1rPP1/1nB4b/1KB1k3/1QB1n2R w - - 0 1 legal: proof: b4 d5 a4 a5 bxa5 h5 c4 dxc4 g4 f5 e4 h4 exf5 Nf6 Ra3 Ng8 Rg3 hxg3 h4 Kf7 d4 Kf6 Kd2 b5 Kc3 e5 f3 c5 d5 e4 h5 Ke5 h6 g2 a6 b4+ Kb2 b3 a5 e3 a7 Kf4 a6 c3+ Ka3 b2 h7 c2 f6 c4+ d6 c3 f7 Ne7 d7 Nf5+ Ka2 Qe7 d8B Bd7 Kb3 Nd4+ Ka2 Nb3 Nd2 e2 Rh4 Ke3 Bc7 e1N Ne2 g1Q Rh1 Qh2 Bd6 b1B+ Ka3 Qf4 Bb4 Qfg5 f4 Ba2 Bb2 c1Q Nd4 c2 Nb5 Qb1 Ne4 c1Q Bd3 Qc4 Nf6 Kf2 Bc2 Ke3 Qd5 Ke2 Bc1 Qb2+ Ka4 Qbe5 Ka3 Q5d6 Qb7 Bb1 Bg6 Be4 Kb2 Bg2 Bc3 Bh3 Ng8 Be6 Nf6 Nd7 Bc2 Re8 a8B Qb8 Ng8 Qa3+ Kb1 Bc5 Qb6 Re7 Bc6 Nf8 Qb7 Qab4 Kb2 Bd7 Nc7 Ba7 Ka2 Re4 Ba4 Nd2+ Ka1 Qd6 Qb1 Qde7 Nb5 Nb3+ Ka2 Bc5 Kb2 Ne6 Nf6 Rc8 h8Q Nf8 Ng8 Rc6 Qh6 Rg6
r7/4n1kB/1q1Rbpn1/N2q2Pb/1N1rPK2/2N1QPrq/Pq2QN2/2B3b1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 Ra5 Rh5 Ra3 Rh1 Ra8 d4 e5 d6 Ne7 d5 Bh3 Na3 Ng8 Rb1 Bg4 Rb2 Bf5 Rd2 Bc8 Rd4 exd4 Kd2 c5 e4 h5 g4 b5 g6 f6 g7 Kf7 d7 b3 d6 b2 g5 b1Q Nf3 h4 Nc4 d3 Ke3 b4 Nb2 c4 Bh3 d2 Qc2 d1B Bd2 b3 Bc3 Ne7 Na4 b2 Ng1 Bh5 f3 Nbc6 Bd2 c3 Bf5 h3 Bc1 h2 Bh7 Ne5 Nh3 N5g6 Rd1 h1Q Nf2 Qh3 Qe2 c2 Nc3 Ra4 g8N Kg7 Rd5 Qa5 d8N Rd4 Nc6 Be6 d7 Qc5 Rd6 Qd5 d8Q Qa1 Qc7 b1Q Qb8 Qab2 Qa7 Qb6 Nb4 Qb2 Nh6 Rg8 Nf7 Rh8 Nd8 Rg8 Bd2 c1R Ndc6 Rg1 Bc1 Rg3 Qa3 Rh8 Na5 Nc6 Rd8 Bc5 Rd6 Ra8 Qb3 Nge7 Kf4 Ne5 Nfd1 Rd2 Qa3 Bg1 Nf2 Rd1 Na4 Rd2 Qae3 Rd4 Nc3 N5g6+
rqN2Q1Q/7b/P1b1n3/5pRn/4kBPb/3nb2B/2QP1P2/K1RbQ1rb w - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 exd5 b6 c5 Qd6 Na3 Qd7 Nc2 Qd6 cxb6 Qd7 b5 Qd8 Nb4 axb4 a4 Kd7 g3 Kd6 b7 Ke5 d6 c5 a5 h5 a6 b3 b6 h3 d7 h4 Rh2 b2 Nf3+ Ke4 Ra5 b1B Rh1 e5 Ke2 h2 Rb5 c4 Rc5 h3 Qa4 Nf6 Kd1 Be7 Rc7 Rg8 Qa3 c3 Rg1 h1B Nh4 h2 Qb3 Nh5 Bb2 c2+ Kc1 Nc6 b8Q Nd4 b7 Ne6 Ng6 Bh4 Ne7 Bg2 Bc3 h1B Kb2 c1B+ Ka1 Ba3 Rc6 Qc7 d8Q Bc5 Qf8 Be3 Rc5 Bd7 Qbe8 Qb8 Nc8 Bf3 Bh3 Bc6 Rc1 Bd1 Qc2+ Kf3 Bf5 Bd4 Ra5 e4 Qd3+ e3 Qee7 Nc7 Qfd8 Qa7 Bh3 f6 Qdh7 e2 Qdf8 e1N Qh8 Bf5 b8Q Bh7 Qb3 Qb8 Qc2 Nd3 Qe1 Be3 Be5 Ne6 Bf4 Ke4 Rc5 Rg4 Rg5 f5 Bd6 Rf4 g4 Rf3 Be5 Rg3 Bf4 Rg1
4NN2/kB2B3/b7/Pb1pN1Qr/2rqnbb1/rPN2Q2/K2P1bP1/2bn2R1 w - - 0 1 illegal: No possible last move, all moves rejected
3B1nk1/4Pn1p/R1P4P/K3N1r1/N2QRbbP/6rr/1qr2QrR/q4rR1 w - - 0 1 illegal: No proof kernel
1Nb2r1b/1kr2q2/1pnQ2NR/1Q1P1bP1/2b3rR/1P2P3/1NNKb3/n2r2B1 w - - 0 1 illegal: No extended proof kernel
bR4rk/2Qn2q1/K1r2p2/4R2P/nNn2PPr/2PN4/1r1QQ2Q/1bn1bB2 w - - 0 1 illegal: No proof kernel
1Q1B1qb1/B6B/P2b1pnb/4kP1K/B2n1R1n/PNb2qQ1/P1n1r3/1R4r1 w - - 0 1 illegal: Other
Q2r3B/1N4b1/3nBQ1p/R1qPN1P1/1KN1N1bP/4Pr2/2r2qnr/3q1k1q w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 d5 cxd5 g5 Ra3 g4 Rf3 gxf3 b3 Bf5 b4 Bc8 g4 Kd7 d4 Kd6 Kd2 f5 Kc3 a5 g5 c5 h3 f2 b6 f3 e3 a4 b5 c4 b7 f4 b6 a3 Qe2 a2 Qb2 a1R Qb5 Nf6 Ne2 Ne4+ Kb4 c3 Ba3 c2 Rg1 c1Q Rg2 Ra2 Nec3 Nd7 b8N Ne5 b7 Ng6 Nd7 Nh4 b8Q+ Qc7 Qa5 Qd1 Qbb5 h6 Bc4 f1Q Bb2 f2 Na3 Qh1 Bf1 f3 Qbb6+ Qc6 Rh2 Ra7 Ba1 Rc7 Qa8 Re2 Bg2 f1Q Qba6 f2 Bf3 Rd2 Bg4 Qfg2 Bb2 f1R Qb6 Nf3 h4 Ne1 Ba1 Rf3 Bf5 Ke7 d6+ Kf7 Bh7 Ke6 Bg8+ Kf5 d5 Kg4 Bb2 Kg3 Qba6 Kf2 Bf7 Ra7 Nc4 Kf1 Qb6 Ra2 Qba6 Nf6 Ne4 Ne8 Qb6 Rg8 Bh8 Bg7 Nde5 Bg4 d7 Qc7 Qg6 Nd6 d8N Qc8 Nb7 Rd8 Qf6 Qc5+ Kc3 Qg3 Be6 Rdb2 Rd2 Qgg1 Rd3 Rh2 Rd2 Ng2 Rd3 Qc7 Kb4 Qf2 Ra3 Rc2 Ra5 Qc5+
bB6/2bn3k/P1rnpR1r/2P1N1nr/q2Q2K1/1QR1PRq1/P1N5/R2n1r2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 g5 bxa5 c5 d4 cxd4 Bh3 Bg7 fxg5 Bf6 g6 Bg7 g5 Bf8 Bg4 hxg4 Kf2 f5 Kg3 d5 h4 b5 c4 e6 g7 Kf7 a6 Kg6 e3 f4+ Kf2 f3 Kg3 f2 c5 f1R h5+ Kh7 h6 d3 Rh2 b4 Bb2 d2 Qa4 d1Q Qe8 b3 Na3 d4 Nc2 d3 Qa4 d2 Qb4 Bd6+ Be5 b2 Qa3 b1R Qb3 Bc7 Nh3 Qd6 Rh1 Nd7 Nf4 Bb7 Nd3 Ngf6 g8R Rc8 Rf8 Ne8 Rf6 Ba8 Kh4 g3 g6+ Kg8 g7 g2 Bf4 g1N Ne5 Kh7 g8R Nh3 Rg3 Ng5 Rf3 Rc1 Kg4 Rb1 Qa3 Rb6 Qb3 Rc6 Rc1 Rd8 Nd4 Rb8 Rc3 Qc2 Rg1 d1N Rh1 Qe4 Nc2 Qa4 Rg1 Qe7 Rh1 Nd6 Rg1 Rhg8 Rh1 Rg6 Rg1 Qg7 Rh1 Kh8 h7 Rh6 Rg1 Qg8 Rh1 Rf8 Rg1 Rf7 Rh1 Kg7 h8Q+ Kf8 Nd4 Nge4+ Rg6 Bb6 Nf5 Nb5 Nc4 Rg1+ Rg3 Nb2 Bb8 Bc7 Nd4 Rf5 Nc2 Rfh5 Qd4 Nbd6 Ne5 Qg7 Kf3 Kg8 Rgh3 Kh7 Rf6 Qg2+ Kf4 Ng5 Rf3 Rb1 Rd1 Qf2 Kg4 Rc1 Rdd3 Rf1 Rd1 Qh2 Rc1 Nd1 Ra1 Qg3+
b2n1K2/1B2R1q1/r2nP1q1/1k3pQ1/1b1Q4/B2q3p/PBR1rNPP/1rn1B3 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 Nc3 e5 fxe5 Qe7 Nd5 Qd8 Nf4 d5 cxd5 gxf4 Kf2 Kd7 Kf3 b5 Ke4 c5 Kf5 h5 e4 b3 d4 c4 d6 Kc6+ e6 b4 d5+ Kb5 e5 f3 d7 h4 e7 f2 e8Q b2 d6 b1R Qd4 b3 Bd2 b2 Qe7 Qc7 Qg5 Bb7 d8B Ne7+ Kf6 Nf5 d7 Nd6 Be1 Nc6 Nh3 Ra6 Be7 Ba8 d8B Qa7 Be2 f1Q+ Bf3 c3 Nf2 h3 Bb6 Nd8 Bb7 c2 Bba5 c1N Bac3 Rh5 e6+ Nf5 Ba3 Qd3 Rg1 Bc5 Rf1 Nd6 Kg7 Rh4 Kf8 Re4 Ng4 f6 Rf2 Re5 Rc2 Re2 Nf2 Qg6 Qdf4 f5 Bh8 Bb6 Qd4 Ba5 Rc7 Bd2 Re7 Bb4 Qdf4 Nd3 Bc8 Rc1 Rg7 Rcc2 Rc1 b1Q Qd2 Qc7 Bb7 Rb2 Qdf4 Qc3 Re7 Qe5 Rc8 Nc1 Rcc7 Qd3 Rc2 Rb1 Qe4 Qed5 Bhb2 Qe5 Qd4 Qeg7+
5Q2/5NPQ/1p2q1pR/Pr1R2PN/2QKbb2/1BQ1r1qb/3nPnk1/1qr5 w - - 0 1 illegal: No proof kernel
kN5n/3r1r2/pKR1pn2/1B2P3/P2P2Qq/3Nq2b/1PrQ1b1n/1N1N1bR1 w - - 0 2 legal: proof: f4 b5 g4 d5 c4 dxc4 d3 g5 fxg5 h5 Bd2 b4 Bc3 bxc3 gxh5 Bf5 Nh3 Bg4 Ng1 Bc8 Kf2 Kd7 Ke3 Kc6 h4 Kb7 a4 f5 g6 c5 g7 f4+ Ke4 a6 e3 c2 h6 c1Q h5 f3 h7 c3 h6 c4 Nd2 f2 Nb1 c2 Ne2 c3 Qd2 Nc6 Rg1 Ne5 d4 Nf3 Kd3 Ra7 Kc4 Nh2 Kc5 Nf6 g8Q Bh3 e4 Ka8 e5 Rd7 Qg4 e6+ Kc6 Rg8 h8N Rgg7 h7 Bb4 Ng6 Rgf7 h8N Qe1 Ra3 c1R Ngf4 c2 Nec3 Qe3 Bb5 f1B Nhg6 Qh8 Nd3 Qh4 Nd1 Bc3 Qdg2 Be1 Rc3 Bg3 Nf8 Bf2 Na3 Ra1 Rc4 c1N Nb1 Ne2 Rc5 Nf4 Kb6+ Qf3 Rc6 Ng6 Qf5 Qe3 Qfg4 Rd6 Nd7 Nh8 Nb8 Rdd7 Q2f3 Ra3 Qe2 Rc3 Qd2 Rc2
1R3b2/1r2rnNN/1qRK3Q/1P1p2QB/nkrP4/3p2PP/n5q1/2qR2Rb w - - 0 1 illegal: No proof kernel
r7/Q1p2q2/1P2pr2/qRP4P/1N1Q1Bbk/rN3Bb1/1q1P1bnK/1B3Bn1 w - - 0 1 illegal: No possible last move
1rR2N1r/R1P3n1/1Bp3qn/N2Q1Pk1/3r3q/1N2q1p1/K1PP1Nbb/1b3Q2 w - - 0 1 illegal: No possible last move, all moves rejected
bNQrQ1bK/3Q2n1/1br4P/Q1P3p1/1Bqp2PR/3P2n1/2r2BR1/1r2rk2 w - - 0 2 legal: proof: b4 f5 e4 b5 exf5 c6 a4 Qb6 axb5 Qa6 b6 Qa5 b7 Qd8 g4 h5 b5 h4 b6 Kf7 Nc3 Ke8 Bb5 cxb5 Ne4 Rh5 Ng3 hxg3 Ra2 Rh3 Ra1 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 f4 g5 c4 a5 d3 d5 f6 d4 h3 a4 f7 g2 f5 Kg3 f6 Kf2 h4 b4 h5 a3 h6 a2 Bb2 b3 Rc1 a1R Rh4 R8a2 Ba3 b2 Qb3 b1B Rc3 Kf1 Qa4 Na6 b8B Nc5 b7 Ne4 Qa5 Ng3 Rb3 Rc2 Nf3 g1R Rb2 Ba2 Bb4 Rac1 B8d6 e6 b8Q Qc7 Qbb5 Ne7 Qd7 Bb7 Be1 Qc8 Bf2 Nef5 Bb4 Bc5 f8Q Bb6 f7 Ba8 Kf6 e5 Qfe8 e4 f8Q e3 Ne5 e2 Nc6 e1R Nb8 Ng7 Kg6 Rg8 Kh7 Qc6 Qec8 Qc5 Qfe7 Rd8 Qee8 Rb1 Kg8 Re6 Kh7 Rc6 Kh8 Qb5 c5 Bg8 Ra2 Qc4 Be3 Rcc1 Rg2 Rc3 Bf2 Rc2 Qef7 Ke2 Qg6 Rge1 Qge8+ Kf1
q1Q3Nr/QnQ1Pnn1/2P1p2B/4P2b/1n1r1bkP/1KpbR2R/8/Q2n1B2 w - - 0 1 illegal: No proof kernel
2b2Br1/qrRK2n1/1kr1N3/1p1R1nB1/1PQ1Q2p/1P1QP2P/bb1b4/3Q1n2 w - - 1 2 illegal: No possible last move
1N3Brk/2R2n1n/1KPP2b1/1BQp4/2NPn3/pn5B/P5qQ/nbB2q1r w - - 0 2 legal: proof: e4 d5 g4 c5 b4 h5 bxc5 hxg4 e5 f5 Bd3 e6 Bf1 Be7 Na3 Bd6 exd6 f4 Rb1 Qa5 Rb3 Qd8 Rg3 fxg3 Ke2 Kf7 Ke3 a5 Kd4 b5 f4 g5 c4 Kg7 h4 g2 h5 a4 d3 b4 c6 b3 Kc5 g3 f5 b2 c7 b1B d4 e5 Qd2 g4 Rh3 e4 Qe1 e3 Bd3 e2 Nb5 a3 Qd1 e1N Bg5 Nc6 Rh2 Nf6 Qa4 Na5 Qb4 Ne4+ Kb6 Nc2 c5 Qf6 c6 Na1 Bc1 N5b3 Nf3 g1N Qc5 g2 Nd2 g3 Nc4 Nh3 h6+ Kh7 Bf1 g1Q Bd3 Qg5 f6 g2 f7 Qf1 f8B Bf5 c8B g1N Nc7 Bg6 Na6 Nf3 Nb8 Qgg2 Bd7 Nhg5 Bh3 Rg8 Be2 Kh8 h7 Ne5 Rh1 Qe1 Rf1 Ra7 Rf7 Qef1 Rc7 Ra8 Ne3 Nef7 Bb5 Nf6 Nc4 Nge4 Nd7 Re8 Nb8 Re7 Ka7 Re5 Kb6 Rh5 Bg4 Rh1 Bc8 Nd8 Be7 Kg7 h8Q+ Kf7 Qh3 Kg7 Qh2 Nf7 Bh3 Nh7 Bf8+ Kh8
Q2bk3/Pb1N2KP/r1Q1B1n1/B3p1n1/4qp1n/1Nr2PPQ/3qQr2/2R1r3 w - - 0 1 illegal: No proof kernel
1rR2Q2/n4P1K/1Q2Prp1/bQNqpP2/2B1qrPR/3r3q/2bBQ3/k6n w - - 0 1 illegal: No proof kernel
Qn6/r1k2N1R/Q3P1b1/rn3pb1/Nq4B1/1bpnPPR1/R1P2K2/1n2qR2 w - - 0 2 illegal: No possible last move
q1rB4/b2N2Q1/2r1b1BN/P1r1pQ1n/kr2RQ1n/n2PP3/q1p2P1Q/6K1 w - - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 cxd5 h5 a4 f5 gxf5 Nh6 Ra3 Ng8 Rg3 Ra6 Rg6 Ra8 Rg4 hxg4 h4 Kd7 d6 Kc6 h5 g5 e3 e5 d7 b5 h6 g3 h7 g2 d3 b3 a5 b2 f6 b4 f7 Kb5 Qe2 c5 Qg4 b3 Qe4 c4 Bd2 c3 Rh5 g4 Qg6 c2 Na3+ Ka4 Qe6 b1N Be2 b2 Rh4 Ne7 Nc4 g3 Re4 Ng6 Bb4 Bc5 f8Q Ba7 Qf4 Nh4 Nf3 Na3 Qef5 b1R+ Bd1 Rb3 Be7 Rb4 Nd4 g1Q+ Ke2 Qe8 d8Q g2 Qc7 Nd7 Bd8 Nf6 Qg7 Rg8 h8Q Be6 Qhh6 Nh5 Qh2 Rc8 Q6f4 Ng6 Kf3 Rc5 Be2 Qc1 Bd1 g1R Be2 Re1 Kg2 Qb1 Bg4 Qa2 Bf3 Re2 Kg1 Nh4 Bg4 Rb6 Bh3 Rbc6 Nb6+ Kb4 Nd7 Ka4 Q5g5 Rh8 Bf5 Rg8 Bg6 Qf8 Bb6 Qa8 Qgf5 Rb8 Bd8 Rbc8 Qfh3 Qc4 Nf5 Re1+ Qf1 Rc1 Nh6 Rb1 Qd1 Rbb8 Qdg4 Rb4 Qgf5 Qa2
7n/Pb1pBQ1K/n1r2QpN/RB1P1b1R/4qr1P/3b2q1/P1r2BB1/1kb5 w - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 h5 exf5 c6 g4 hxg4 Nc3 c5 Nd5 Nf6 Nb4 cxb4 Qe2 Ng8 Qf3 Nh6 Qd1 Ng8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 c4 b5 d4 g3 f4 g6 a6 g2 c5 b3 a7 b2 d5 b4 c6 b3 c7 Bb7 c8B Bh6 Qd4 Na6 Rb1 Qc7 Nf3 g1R Bg2 Rf1 Ng5 Rf2 h3 Rc2 Be3 Qc3 Bf2 Qg3 Rbc1 b1B Nf7 b2 Qc3 Bg5 Nh6 Rh7 Qf3 Rf7 Ke3 Rc6 Rc5 e4 Ra5 Bd3 Rh2 b1B Rh1 Ke7 f6+ Kd6 Rh2 Rf8 f7 Bbc2 Kd4 e3 f5 e2 f6 e1Q Qf5 Bc1 Rh1 Re8 f8Q+ Qe7 Qg7 Rf8 f7 Qe6 Qff6 Bf5 h4 Bcd3 Re1 Rb8 Re5 Rc2 Ng4 Nh6 Qh7 Ba8 Bb7 Rbc8 Bc6 Bb7 Bb5 R8c6 Qg8 Re8 f8B+ Re7 Qgh8 Nf7 Qg8 Nh8 Nh6 Nb4 Bg7 Na6 Qh7 Rf7 Bf8+ Kc7 Be7 Kb6 Re4 Rf8 Rg4 Qe2 Qhf7 Qe1 Rg5 Qh1 Ra3 Qe1 Rh5 Qh1 Rc3 Ka5 Rc5 Kb4 Bh3 Ka3 Bg2 Qgh3 Ke5 Kb2 Bf3 Kb1 Bg2 Bb2+ Kf4 Qe1 Kg5 Qf3 Rc3 Qe5 Ra3 Qee4 Ra5 Qh3 Ng8 Qg3+ Kh6 Bc1+ Kh7 Rfc8 Nh6 R8c7 Bfc5 Rf2 Bb6 Rf4 Bd4 Rc2 Bf2 R7c6
1RN3q1/Pnk1pR1B/8/1QnnK3/2P1PB1p/n1B1PBr1/1r1q4/1Qbb1r2 w - - 0 1 illegal: No proof kernel
k2b3N/n1Pp1Q1b/5br1/R2q1p2/KrRPQ3/3P1r1P/1N1Nqr2/1n1NB3 w - - 0 1 illegal: No proof kernel
1Q3Rn1/2n1r2q/5R1r/p2p1rPn/k2KR1bP/3N1q2/PR3QBP/2r1N1b1 w - - 0 1 illegal: No proof kernel
Q2b2R1/1KP2nR1/r1p5/2N1nb1P/1qQQ1pQB/b1n1NP2/1r3P1n/6bk w - - 0 1 illegal: No proof kernel
2Q2bq1/BB5k/r1qppPN1/4Br2/3PKN2/RQ2Br2/4PrbP/3nb2b w - - 0 1 legal: proof: g4 f5 gxf5 h5 b4 b5 a4 a5 Ra3 Na6 Rd3 axb4 Rg3 b3 Rg5 Nb4 Rg4 hxg4 c3 Nd5 c4 b4 Bb2 Nc3 Bc1 Nb5 cxb5 Ra7 Nh3 Ra6 Ng1 Ra8 f4 Kf7 Kf2 g5 Ke3 Kg7 d4 c5 f6+ Kh7 a5 c4 a6 e6 b6 d6 f7 c3 b7 c2 b8B b2 f5 g3 f6 g4 a7 b3 Kd3 g2 Bh6 c1Q Qe1 g3 Nc3 b1R Na4 b2 Be3 Qc6 Qc1 Bb7 Nc3 Ne7 Qe1 Nf5 Nf3 g1R Bg2 Rf1 Nd5 Rf2 Qc3 Rbf1 Nf4 b1B+ Qc2 Ba2 Ne5 Bd5 Neg6 Rg8 Bf3 g2 Qb3 g1B Be4 Ng3 Bg2 Ne4 Bf3 Nc3 Bg2 Be7 f8B Nd1 Bh6 Bf8 Bg5 Qde8 Bh4 Rf3 Bg3 Bf2 Rg1 Be1 Bh1 R1f2 Bg2 Ba5 Bh1 Nc3 Ra1 Nd1 Ra3 Qec8 Nh5 Q8e8 Be5 Be1 Nhf4 Rh8 Bc7 Qf7 Bb6 Qg8 Bc5 Rh3 Bb6 Bg2 Bc5 Rhf3 Bb6 Rd8 a8Q Rb8 Qa6 Ra8 Qac4 Ra5 Qa6 Ba8 Qc8 Ra6 Bc5 Qf7 Ba7 Rg8 Ne7 Rg5 Neg6 Rf5 Qb6 Qg8 Qb3 Bf1 Bg2 Rg3 Bd5 Rgf3 Ke4 Bg2 Qbb7+ Qd7 Bc6 Bh1 Kd3 Rh3 Qb3 Qe8 Ba4 Bad5 Bc6 Bdg2 Bb7 Rhf3 Ke4 Qc6+
5Rrb/N2K1p1k/bN1n3p/2P1P1n1/QQ4Bp/1q3R1P/b1P1N2r/1Nq1n3 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 g6 f4 g5 Be3 exf4 Bf2 Bd6 Bg3 Bf8 Bh4 gxh4 Kd2 a5 Kd3 d5 Kd4 f3 Ke5 h6 e4 a4 g4 a3 b4 d4 b6 a2 b7 d3 h3 d2 g5 f2 g6 Nc6+ Kf4 Bg7 b8N Kf8 b5 Na7 b6 Nf6 Ke5 Kg8 b7 Qd3 Nd7 Qb3 Kd6 Nh7 b8Q Ng5 Qb4 Ba6 e5 Rd8 Qdg4 d1N Be2 f1B Rh2 Bf6 g7 Ne3 Rf2 Kh7 g8N Ng2 Ne7 Ne1 Nc8 Rhg8 Rf3 Bh8 Kc7 Bc4 Ndb6 Rd2 Bd1 Re2 Kd7 Rh2 Ne2 Nb5 Na7 Nd6 Qa4 Ba6 Qgb4 Bc4 Nd2 Ba6 Rb1 a1Q Rb2 Qc1 Nb1 Qa2 Rbb3 Nf5 Rbd3 Qb3 Rd6 Bg2 Re6 Bh1 Re8 Nd6 Rf8 Bg2 Rf5 Ba8 Rf3 Bd5 Rf1 Qd2 Nf4 Qb2 Bg4 Ba2 Ne2 Qb3 Rf3 Qc1
8/P1nk2r1/1n1p1p2/bPb2P2/NNB1brq1/1Bp1R3/1BB1QKP1/1qr2Q2 w - - 0 1 legal: proof: b4 b5 c4 a5 d4 g5 h4 Ra6 hxg5 Ra7 a4 Ra8 Ra3 e6 Rb3 bxc4 b5 e5 Rb4 axb4 dxe5 Bh6 Qd4 Bg7 Qd1 Bf8 f4 c5 e4 h5 g6 b3 g7 b2 e6 f6 e7 h4 e5 c3 a5 c4 a6 h3 a7 h2 f5 c2 Qf3 Na6 Be2 Bb7 Qf1 Bf3 Bd3 Nc7 Kf2 Rh4 Nc3 b1Q Nd5 Rf4 Bb2 c1B Nb4 Bd2 Bc2 Rb8 Ne2 Rb7 Rg1 h1R Nc3 Qc8 Na4 Bc3 Nd3 Ba5 Nb4 c3 Qe1 Nh6 g8B Nf7 Qf1 Nd6 Bc4 Qd8 B4b3 Nc8 Bc4 Nb6 B4b3 d6 Bc4 Kd7 e8Q+ Kc8 e6 Bh6 Qh5 Qg8 e7 Qg4 e8B Kd8 Bef7 Kd7 Qd3 Bg5 Re1 Rg1 Re3 Rc1 Qh1 Bh6 Qhd1 Bg5 Q3e2 Bh4+ Kf1 Bf2 B4b3 Bg1 Bfc4 Bf2 Re4 Bc5 Re3 Rb8 Qde1 Rg8 Kf2 Rg7 Q1f1 Be4+
1rK1Q3/5n1b/p1Bb4/1Q2N2R/2n2PRB/pp1P3n/P5RP/Rq1k1rbq w - - 0 1 illegal: No proof kernel
3n1b2/6Qb/5QR1/3qK1pP/rN3p2/NNp3q1/bP1P1nPq/rR2B1Nk w - - 0 1 illegal: No proof kernel forced: bxDB
r1R5/2p1Bb1b/1NBqqQrK/p5pB/2P3Pk/1R1P1n2/1n3P2/qrQ2B2 w - - 1 2 illegal: No proof kernel
4bN1Q/n1B2pN1/p1p4b/2R1bnk1/r4b2/2PN2b1/1PP1rRQP/1q2N2K w - - 0 1 illegal: No proof kernel
r3nB2/2k1bR1p/2q2N1P/b1B3rQ/1p1rp2Q/P6b/Pr1BK1BP/1N2n3 w - - 0 1 illegal: No proof kernel
3RNrk1/Q3r1br/1qpnb1K1/4P1B1/2pPN1pN/3N2Pn/1PbbQ3/3R4 w - - 0 1 legal: proof: f4 d5 a4 h5 c4 dxc4 g3 e5 fxe5 b5 axb5 h4 Bg2 h3 Ra3 hxg2 Ra5 Bd6 Ra1 Bf8 Kf2 g5 Ke3 a5 Ke4 f5+ Ke3 Kf7 h4 c6 d4 f4+ Ke4 f3 h5 a4 e3 f2 h6 f1B b6 a3 b7 g4 h7 a2 Nc3 Qb6 Nh3 g1B Nf4 Be6 Qe2 Nh6 Nd3 Nd7 b8Q Nf5 Qa7 Bg7 Rh3 Rhf8 h8N+ Kg8 Ng6 Rae8 Nh4 Nf6+ Kf4 Re7 Kg5 Nh5 e4 Bf2 Kg6 Be1 Bg5 Nd6 Rd1 a1R Rh2 Bd2 Rh3 Bc8 e6 Bd7 e5 Bg2 Qb8 Ra7 Rhh1 Rb7 Qa7 Bc8 Rhf1 Be4+ Rf5 Ref7 e7 Be6 e8N Rbe7 Ne1 Bc2 Ne4 Bh6 Nd3 Rh7 Rf2 Bg7 Rf7 Rb7 Rd7 Rc7 Rd8 Re7 Be3 Nf4+ Kg5 Nh3+ Kg6 Bc8 Bg5 Be6
N5R1/N2kr1p1/1P1np3/3bPr2/qQp4r/P1nK3P/N1Bb3B/4rQNb w - - 0 1 illegal: No possible last move, all moves rejected
2rb1Q1B/R1b2pqr/2RpP3/n2P3k/pP3P2/3N1n1K/R2Br2R/Qb1r4 w - - 1 2 legal: proof: g4 b5 b4 c5 a4 h5 axb5 c4 gxh5 Nc6 c3 Nb8 Bh3 Ba6 Bg2 Bc8 Be4 e6 Bc2 e5 Bb3 cxb3 d4 Qh4 d5 Qh3 Na3 Qh4 Nc2 Qd8 Nd4 exd4 Kf1 g5 Kg2 a5 e4 d3 h4 a4 f4 d2 b6 g4 c4 d6 e5 g3 c5 b2 h6 b1R h5 Nd7 h7 Ne7 c6 Rb2 c7 Nc6 b7 Na5 b8R Qf6 h6 Qg7 Rh4 Be7 Rh2 Kf8 Ne2 Bd8 Kh3 g2 Rb7 g1B Ra2 Bb6 Ra7 Rc2 Qe1 d1R Bd2 Ba6 c8Q Bd3 e6 Ne5 Nc1 Nf3 Qb8 Be4 Nd3 Bc7 Qc8 Bg6 Qe5 Ke7 Qa1 Rb2 Qb8 Kf6 Qc8 Be4 Qb8 Kg6 Qc8 Rg8 h8R Kh5 h7 Re8 Rg8 Bg6 h8B Be4 Ne5 Bb1 Nd3 Rf8 Be1 Re2 Bd2 Bh4 Qd8 Rc8 Qe8 Bhd8 Qe7 Qh7 Rg1 Rg8 Qf8 Rg7 Rgg2 Qh6 Rc2 Rh7 Rc6 Qg5 Bdc3 Re3 Ra2 Re2 Bd2 Qg7
NR1bk2n/2Qb4/p2Q1pq1/1n1npB1B/1n3P2/P2rbP2/RrP1K3/2Q4Q w - - 0 2 illegal: No proof kernel
2NbrQ1n/3K3n/kp1NP3/B1p3qb/n2n1N2/pr1rP2P/2P5/QBN4R w - - 0 1 illegal: No proof kernel
5r2/BRnK2p1/1B1QN1Q1/1n1Pp1q1/1N1PP3/n1B2pPb/1b3kr1/1nB4b w - - 0 2 illegal: No proof kernel
3B4/2prPR2/1n4b1/1rP3qq/PB1B1p2/KNQpq3/1Q1B1P1n/3kbqR1 w - - 1 2 legal: proof: c4 d5 g4 h5 gxh5 a5 b4 Ra7 bxa5 Nf6 c5 Ra8 Bg2 Ng8 d4 Ra6 Be4 Ra8 Bd3 e6 Bc4 dxc4 Nc3 e5 d5 Bd7 Nb5 Bc8 Nd4 exd4 Kd2 Ke7 Kc2 Kf6 Kb2 Kf5 h4 Ke4 a4 g5 d6 b5 e3 f5 d7 f4 a6 g4 a7 d3 h6 b4 h5 c3+ Ka2 b3+ Ka3 b2 h7 b1Q h6 c2 Qf1 g3 Qd1 g2 Qf1 Bg7 Nf3 g1Q Qe1 Qf1 Bd2 Bc3 Nd4 Nf6 Nb3 Kf3 e4 Qd1 e5 Ng4 e6 Qg5 e7 Rd8 h8B Nh2 h7 Qde2 Qb1 c1Q+ Qb2 Qed1 Be5 Ke2 h8B Bb7 Rg1 Be4 Bd4 Bg6 Rg3 Ba5 Rh3 Bc3 Rh7 Ba5 Bb4+ Qcd2 Rf7 Ke1 Ra2 Qdh5 Ra1+ Ke2 Qc3 Qe3 Bhf6 Qfh3 Rh1 Qf1 Rg1 Kd1 Bfe5 Na6 Bf6 Rab8 a8Q Rb5 Qb7 Nb8 Qb6 Nc6 Bfe5 Na7 Qf6 Nc8 Qb2 Rh8 d8B Nb6 Bdc3 Rh6 Bd2 Bh7 Qc6 Rd6 Bd4 Bg6 Qd5 Rd7 Qc4 Qgg4 Qcc3 Qhg5 Rh7 Q4h5 Rf7 Qe6 Qcc2+ Ke2 Bc1+ Kf3 Be1 Bd2 Qc4 Ke2 Qb4 Kd1 Qc4 Be3 Bb4 Bd2 Qcc3 Be1 Bd2 Qe3
B1b1qq2/n2n2p1/1B1n1B1r/1Q1PP3/1r1b1RB1/2pQ1K1R/n1p2PP1/1k2N3 w - - 0 1 illegal: No proof kernel
3bB3/k1B3Np/5qPP/r1bbB1K1/4p1Q1/3nPp2/1RnQP3/1bn1b1RB w - - 0 1 illegal: No possible last move, all moves rejected
1q2bQNr/4p2R/1B2PR2/2bBP1P1/bbqRn1p1/Qr1r4/2p1k1P1/K5R1 w - - 0 1 illegal: No proof kernel
1q5n/r1n1pN1p/R3q1PP/2krP3/4qp1K/n1P2RQ1/2b1q3/1BBRR2Q w - - 0 1 legal: proof: f4 b5 d4 c5 g4 cxd4 a4 Qb6 axb5 Qd8 g5 Qb6 g6 Qd8 Nd2 Nh6 Ne4 Ng8 Nf6+ gxf6 Nh3 Bh6 Ng1 Bg5 fxg5 Qa5+ Qd2 Qc7 Qd1 Qd8 Kf2 d5 Kg3 Kd7 h4 Kd6 e4 a5 b4 f5 b6 f4+ Kh2 f5 Kh3 a4 b7 d3 h5 d2 g7 d4 b5 a3 b6 a2 g6 d3 c3 f3 e5+ Kc5 Kh4 f4 Qa4 d1Q Rh3 d2 Qe4 f2 Qh1 Qb3 Nf3 d1Q Bd3 f1Q Bb1 Qd1d3 Rg3 Qfe2 Ng5 Qe6 Nf7 Ra7 Rf3 Nh6 g8R Na6 b8Q Nc7 b7 Qde4 Qa8 Bd7 b8R Ba4 Qh3 Bc2 Rb6 Qb8 Rd8 Rg8 Rdd3 Rd8 Qg3 Rd6 Ra6 Rd5 Ng5 Nf7 h6 Nh8 Nf7 Bb3 Rd1 Ba4 Bc2 Bb3 Rb1 a1N Bd3 Nc2 Rba1 Nb4 Bb1 Nc2 Re1 Qd2 Rd3 Qeb4 Ba3 Rd7 Ba2 Qg2 Rad1 Qe2 Qh1 Rd5 Bc1 Na3 Bb1 Bc2 Rf3 Qbe4
2b4R/4bn2/2bnpP2/4K1P1/B2pQ2p/2q1PQ1P/BB1q1r1k/3RqBbN w - - 0 1 illegal: No proof kernel
r1QB4/1n1n2r1/7p/2p2RbP/1RPp1P1n/NQN1R2p/4qR1P/k1r2bK1 w - - 1 3 illegal: No proof kernel
1B1r4/1P1P3b/2RN1p2/1p4k1/b3Q1rr/Rn1npPpQ/K5PR/q1R1B1b1 w - - 0 2 illegal: No proof kernel
n2br3/P1nq2b1/PnNR3p/1Q1RQ2Q/1pb1PKp1/3p4/N2k2PQ/rB6 w - - 0 1 illegal: No proof kernel
2B1rn2/1pr1p1QB/p2B1P2/B1n1P3/1P1P2qQ/qk1bN3/3Rr1pR/K6b w - - 0 2 illegal: No possible last move, all moves rejected
2Qq2b1/5nRK/B1p2NpP/kp1rp3/2r1Q1r1/Br2PP1N/6Pb/BB1n4 w - - 0 2 illegal: No possible last move
b3r1R1/1B1p2PQ/2qKpr1N/Np3r2/PkNRPQ2/b2pn3/1P1N3q/2q5 w - - 0 1 illegal: No proof kernel
1B1R4/Q2Bpb1B/rr1PP1p1/Kp3n2/1p1Q3n/kP2r1P1/N7/r2RBr1b w - - 1 3 illegal: No possible last move
nK6/N6N/Rp2pqR1/1P1p1N1p/QB2P1PP/3rbr2/Q1n1q2p/2N3kn w - - 1 3 legal: proof: d4 g5 f4 b6 h4 g4 f5 d6 g3 Bb7 Bh3 gxh3 d5 Qc8 a4 Qe6 a5 c6 a6 cxd5 axb7 Qg6 fxg6 d4 Kf2 Kd7 Kf3 Ke6 Kf4 Kd5 b4 f5 b5 h5 e3 a5 g7 d3 g4 e6 c3 d2 Ba3 h2 Bc5 a4 Nh3 a3 Ng5 a2 Nh7 Ne7 g8N Na6 b8Q Nc7 Rf1 Ra3 Qa7 Na8 Qda4 d1Q Nh6 Qe2 Nd2 Bg7 Nb3 Rd8 Bb4 Bd4 e4+ Kc4 Qb7 Kd3 c4 d5 c5 Rf8 c6 Be3+ Ke5 f4 Kd6 f3 c7 f2 c8N Rf3 Kd7 Nf5 Na7 Ng3 Kc8 Nh1 Nc1+ Kd4 Kb8 Rd3 Re1 f1Q Qba6 Qff2 Rd1 Qff1 Rd2 Qff2 Rc2 Qff1 Rc8 Qff2 Rg8 Qff1 Rb1 a1N Rg6 Nc2 Ra1 Rg3 Qb7 Qf6 Qba6 Rf3 Qa2 Bf2 Q6a3 Ke3 Qa4 Bg1 Nf5+ Kf2 Qc4 Kg2 Ra3 Be3 Qa2 Qa1 Q4b3 Kf1 Ra6 Qf6 Qba4 Kg1
2n3q1/P2N3p/RpQ1b2n/B3P1kp/QPp1K1qn/p1P1b2B/1N1B1r2/3B4 w - - 0 1 illegal: No proof kernel
3BRQ2/5P1r/3rppb1/qk1B3q/1P2P1rN/1pBn3p/1P1Q1bpK/3N3B w - - 0 1 illegal: No proof kernel
r1N2Q1n/Qp1n1q1B/4Nppb/6P1/bPkP1P2/5q2/3rbQq1/RRK2Qb1 w - - 0 1 illegal: No proof kernel
nn2q1q1/4r1pk/1p1N1PR1/1r2b3/bn4P1/p6K/PP3q1q/1QRNBNQN w - - 0 1 legal: proof: e4 h5 c4 f5 g3 fxe4 Be2 d5 cxd5 h4 Bf3 h3 Bg2 hxg2 h4 Kf7 d4 Kg6 f4 a5 Kf2 c5 h5+ Kh7 g4 e5 Kg3 e3 h6 c4 f5 b6 f6 a4 d6 a3 d7 e4 d5 e2 d6 e1Q+ Kh3 c3 Bd2 c2 Ne2 g1Q Ng3 c1Q Nf1 e3 Nc3 e2 Rh2 Qef2 Be1 Qcf4 Rc1 Ra5 Rh1 Qe8 d8Q Ne7 d7 Nd5 Qc7 Bb4 d8N Bd6 Qc5 Nc7 Nb7 Be5 Nd6 Qg8 Nde4 Bd7 Neg3 Ba4 Rh2 Ra7 Nh1 Na8 Qcd4 Re7 Qe3 Kg6 h7 Kh6 Qg3 Q2e3 Qd3 Qgf2 Nd1 Qee4 Qge3 Qc6 Qb1 Qce8 Bb4 e1N Qd4 Nd3 Be1 Nb4 Qe3 Qb5 Qg3 Qgd5 Qg1 Rd8 h8N Qg8 Rg2 Qbe8 Rh2 Bc2 Nf7+ Kh7 Nd6 Rc8 Rg2 Rc5 Rg3 Ra5 Rc3 Rb5 Rc5 Bd4 Rg5 Be5 Rg6 Bb3 Qg2 Ba4 Qg1 Q4h2+
8/rQbp1K1B/1P1Pn1pr/1pQ3Pp/6Nk/r2n1qn1/1RbQN2P/1Q1n2R1 w - - 0 1 illegal: No extended proof kernel
q7/R1b2p2/Bkprb1Q1/p2P2pb/1NPR2Q1/1n1n4/PQK1r1Pb/2Q2Nq1 w - - 0 1 illegal: No proof kernel
N1KB1bkb/4r2b/1Bp2qp1/nP2pB1r/Q2p1R2/QN4P1/2pPP2n/B6q w - - 0 1 illegal: No proof kernel
1k2B1KQ/3n1RN1/qBnr2p1/p2p4/P1pn2r1/2P3R1/2pPPn1b/2Bb2BQ w - - 0 1 legal: proof: g4 e5 f4 exf4 c3 h5 gxh5 b5 Na3 b4 Qa4 Ba6 h4 Bd3 h6 Bc2 h5 Bd1 Nc2 b3 Bh3 bxc2 Kf2 f5 Kf3 c5 b4 c4 h7 a6 b5 g6 h6 Qf6 b6 Kd8 b7 Nc6 b8B Kc8 Bc7 Bd6 Bb6 Kb8 Bg4 Qe6 Nh3 Nf6 Ng5 a5 Rb1 Ra6 Rg1 Re8 h8Q Bc7 h7 d5 Rg3 Nd7 a3 Qf6 Ne6 Be5 Ng7 Bd6 Kg2 f3+ Kh3 f2 Rb5 Qe6 Kh4 f1N Kg5 f4 Kh6 f3 Qb4 f2 a4 Be5 Qe7 Ne3 Qh4 f1N Qh1 Nh2 Rb1 Qf6 Be6 Rf8 Bf7 Nf3 Be8 Nfd4 Rb4 Qd6 Rb5 Rf4 Rc5 Nb4 Rc7 Nbc6 Ra7 Rg4 Rc7 Nc5 Rf7 Nd7 Ne6 Bf4+ Kg7 Rg5 Kg8 Ng4 Qe5 Nf2 h8B Rg4 Qeh5 Nf5 Bhd4 Be5 Be3 Nfd4 Ng7 Qf6 Qh8 Bd6 Rf3 Bh2 Rg3 Na7 Bd8 Rd6 Bb6 Nac6 Qh5 Nd3 Bg1 Nf2 Qh7 Qd8 Qh3 Qc8 Qh8 Qa6
2R3bR/p1Pb1q2/Bppk1pp1/N1R2RQ1/5P2/NP3KbQ/2nr1bP1/3n1r2 w - - 0 1 illegal: No proof kernel
nqB1b2q/5Pb1/3n4/bNkBqRNR/2P5/P5qK/q3qNP1/1N3N2 w - - 0 1 legal: proof: d4 b5 b4 a5 bxa5 c5 e3 d5 dxc5 f5 e4 d4 Bb2 Ra7 Ba3 Rd7 Bc1 Rd5 exd5 Be6 Qe2 Bd7 Qd1 Bc8 h4 h5 f4 g5 Qf3 Rh7 Qe4 fxe4 f5 Rg7 Bf4 gxf4 Kd1 Nc6 Ke1 Rg5 hxg5 Nb8 Kf2 Kd7 c4 e5 c6+ Kd6 a3 h4 a6 b4 c7 d3 g6 e3+ Kf3 h3 Kg4 f3 g7 f2 a7 d2 a8B d1Q+ Nf3 b3 Ra2 h2 Bb7 e4 Re2 b2 Rc2 e2 Rc3 e1B Be2 f1Q Nfd2 e3 Bf3 e2 Kh3 Kc5 d6 Ne7 g8N Bg7 d7 Na6 f6 Nf5 f7 Nd6 Bfd5 Qf4 Rf3 Qc2 Nf1 Ba5 Nf6 e1Q Rf2 Qee5 Ng4 Qce2 Rf3 Qde8 d8N Bd7 c8N Nc7 Na7 Na8 Bc8 Qg8 Nb5 Be8 Nf2 Qf8 N1c3 b1Q Ne6+ Kb6 Bc6 Qba2 Ng5 Kc5 Nb1 Qg8 Bd5 Qf8 Rg3 Qg8 Rg4 Qh8+ Rh4 Qf8 Rh5 Qg8 Rg1 h1Q+ Nh2 Qh8 Rd1 Qhe1 Nf1 Qb4 Rd3 Qbb2 Rf3 Qbb3 Nc7 Qb8 Nb5 Qc1 Rf6 Qcf4 Rf5 Qg3+
1Nr1Nn2/k1Bqn3/1N2r1B1/3P1PpP/2KNrRrN/2P2n2/2nb4/1b2R3 w - - 0 1 legal: proof: e4 d5 b4 h5 a4 c5 g4 f5 gxh5 d4 exf5 d3 c3 cxb4 Qc2 b5 axb5 dxc2 Ke2 Kd7 Kd3 Kc7+ Kc4 Kb6 d4 e5 f4 a5 h4 b3 d5 a4 f6 e4 h6 a3 h5 b2 f7 a2 h7 e3 Rh4 e2 Bg2 e1R Be4 Qd7 Na3 b1N Ne2 Ka7 Nd4 Ne7 Bg6 Rg8 h8N Re6 f5 Ba6 Be3 c1R Bf4 Rce1 Bc7 R1e4 Rf4 Nd2+ Kd3 Rb6 Nc4 Rbe6 Re1 a1N Nd6 Nc2 Ne8 Nf3 Kc4 Qd8 Bh7 Nd7 Ng6 Rc8 Nh4 g6 Rd1 Bh6 f8N Bg5 Re1 Bh6 Rg4 Bd2 Rf4 g5 Bg6 Rg7 Nh7 Nf8 Nhf6 Rh7 Nd7 Rh6 Nb6 Qd7 Kd3 Rc6 Na4 Rc4 b6+ Ka8 b7+ Ka7 b8N Bb5 Bf7 Rhe6 Nb6 Ba4 Bg6 Bb3 Rg1 Ba2 Rc1 Bb1 Re1 Re2 Nb3 Rce4 Nd4 Rg2 Kc4 Rg4
NNrn2n1/rNP5/3bRq1B/pN5B/qP1pb3/R1K1bP2/3P4/3k1bbN w - - 0 1 illegal: No possible last move, all moves rejected
3K2BN/1pn3p1/2nbP2k/1r1P1pNq/3Pq3/2R1B1N1/b1b1NPqr/2R4N w - - 0 1 legal: proof: d4 a5 c4 d5 g4 h5 cxd5 e5 gxh5 e4 b4 axb4 Qd3 exd3 Kd2 c5 Ke3 d2 Ke4 d1Q Ke5 c4 a4 c3 h4 c2 e4 b3 a5 b2 a6 Qd2 h6 Be7 h5 Kf8 a7 Qe8 h7 Bg5+ Kd6 f6 Kc7 Nc6 e5 Rb8 a8N Bg4 e6 Rd8 h6 Qa5+ Nb6 Bd1 Nd2 b1B Ne2 Ba2 Rh3 Rd6 Ng3 Qh5 Nh1 Bf4 Ne4 Qe1 Be3 c1Q Na4 Bc2 Nac3 f5 Bb5 Qb1 Neg3 Qf1 Nce2 Qg2 Kc8 Qe1 Rc1 Nf6 Kc7 Ne8+ Kc8 Rg8 h8N Nc7 Nf7 Rh8 Ng5 Kg8 Ba4 Qe4 Bb5 Qf1 Ba4 Qfg2 Bb5 Ne5 Be8 Rb6 Kd8 Rb5 h7+ Kf8 Kc8 Nc6 Bf7 Ke7+ Bg8 Kf6 Kd7 Bd6 Bf7 Ra8 Bg8 Kg6 h8N+ Kh6 Bf4 Ra3 Bd2 Ne5+ Kd8 Rf3 Be3 Rf4 Nf1 Rh4 Rf3 Rh2 Nfg3 Ng4 Bd2 Ne5 Rc3 Rh4 Bf4 Rh2 Be3 Nc6+
2K5/2nP1Rrq/p3pB2/2RB1b2/1R1R1Np1/k1P2PrN/1Rn1Pb1r/4q2q w - - 0 1 illegal: No proof kernel
RN2N2R/2r2PrP/P1K2N2/p2p2b1/2nBb1NN/3pq2r/3PBn2/1r1r3k w - - 0 1 illegal: No proof kernel
2N2Nr1/2B1r3/1BBb2np/2pRpq1b/1B2P1rR/P1K1p2P/1BP1q1kb/n7 w - - 0 1 legal: proof: e4 d5 b4 a5 g4 axb4 Qf3 f5 gxf5 d4 Qe3 dxe3 f4 Kf7 d4 Kf6 d5 e5 h3 g5 d6 b5 d7 c5 a3 b3 Nf3 g4 Rg1 g3 Nd4 g2 Ke2 h6 Kd3 b2 Nd2 b1Q Kc3 Rh7 Bb2 Re7 Nc4 Nc6 Nb6 Na5 Ne6 Qd1 Be2 Qc7 d8B Nb3 Bg4 Qe2 Rad1 Ba6 Rd5 Qd7 Nc8 Na1 Ba5 Rb8 Rf1 g1B Bb4 Bh2 Rg1 Rf7 Rg3 Bd6 Nf8 Ne7 Bh5 Qe6 Rg4 Ng6 Rh4 Re7 Bg4 Bb7 Bh5 Bc6 Bg4 Be8 Bh5 Kf7 f6 Qf5 Bg4 Kg8 f7+ Kg7 Bh5 Kf6 Bg4 Qe6 f5 Kg5 f6 Kf4 Bf5+ Kg3 Bg4 Qd7 Bh5 Qf5 Bg4 Qg5 Bd7 Qf5 Bc6 Ra8 Ne6 Kg2 f8B Nf4 Bg7 Bh5 f7 Ng6 Bf6 Rb8 Nb6 Rg8 f8B Rd7 Bd8 Re7 Ba5 Qef3 Nc8 b4+ Kd3 b3 Bb4 Q3g4 Bb6 Qe2+ Kc3 Rh7 Bc1 b2 Be7 b1R Bb2 Re1 Bed8 Re7 Nf8 Rf1 Bdc7 Rf4 Rd3 Rg4 Rd2 Bf4 Rd5 Bh2
bqkBKbN1/6q1/2BP1b2/1qB4R/2P2n1R/P1PN4/nrNbB2r/4n3 w - - 0 1 legal: proof: e4 d5 exd5 c5 h4 f5 b4 a5 d3 axb4 Qe2 g5 hxg5 c4 Qe4 fxe4 dxc4 Ra3 Ne2 Ra6 Ng1 Ra8 Ke2 Kd7 Ke3 b5 Kd4 h5 Kc5 e5+ d6 h4 g4 h3 f4 h2 c3 e3 f5 b3 g6 b4 g5 e4 g7 b2 g6 e2 a3 e1B f6 b3 f7 e3 Be2 Na6+ Kd5 Nb4+ Kc5 Bb7 Bd3 e2 Nd2 b1N Ndf3 b2 Nd4 Bd2 Nh3 e1B Be2 Na2 Nc2 Ne7 g8N Qb8 g7 Kc8 Nf2 Ng6 Nd3 Bh4 Kb6 Bf6 Kb5 Bf4 Be3 Nd2 Bc5 Nf3 Rag1 Rh4 Rg5 Ne1 Rh5 Bd2 Kb6 Nf4 Kb5 Ba6+ Kc6 Rh3 Rh4 b1Q Rh5 Ra7 Rh4 Rb7 Rh5 B8e7 f8B Rb2 Rh4 Bg5 Rh5 Bh6 Rh4 Bf6 Rh5 Rh4 Be7 Rh3 Bd8 Rh4 Rf1 h1Q+ Rf3 Qg1 Rh3 Rg4 R3h4 Rg2 Rg4 Rh2 Rgh4 Be7 Nf6 Qg5 g8B Bhf8 Bd5 Qg7 Ng8 Bf6 Bdf3 Ng6 Kd5 Qb5 Ke6 Bb7 Be4 Ba8 Bc6 Qh6 Kf7 Nf4 Ke8 Qh8 Ne5 Qg7 Nd3 Qd1 Na1 Qdb3 Nc2 Q3b4 Nf2 Qb8 Nd3 Q4b5
1q6/nb2BNbR/1kPPRKB1/r2PN1rN/nN4r1/3b1b2/1bP1B1r1/8 w - - 0 1 legal: proof: e4 d5 exd5 b5 h4 c5 b4 g5 bxc5 gxh4 a4 f5 axb5 Nc6 Qg4 Nb8 Qe4 fxe4 Ke2 Kd7 Ke3 Kc7 Kf4 h5 Kg5 e5+ Kg6 a5 f4 h3 g4 e3 d4 a4 g5 e2 f5 e1R c6 h2 f6 a3 f7 a2 d6+ Kb6 d5 h4 Nd2 e4 Bh3 e3 Ne2 Rh5 Nf4 e2 Bg4 h3 Nf3 Ra5 Ne5 Ne7+ Kf6 Rg1 g6 e1R g7 Rg2 g8B Na6 Be2 Rhg5 Nh5 Nc5 Bh7 Bb7 Bg6 Qb8 Bb2 Bh6 f8N Nc8 Nh7 Reg1 Re1 a1B Bc3 R5g4 Ng5 Na7 Ngf7 Bb2 Bd2 Na4 Bg5 Kc5 b6 Bf8 Ke6 Bg7 Be7 Rg5 Rf1 R2g4 Rf5 R1g2 Rf6 Ba8 b7 Kb6 Rhf1 h1B R1f3 h2 Rh3 Qh8 b8N Bb7 Na6 Qb8 Rh4 R2g3 Rh3 Be4 Nb4 h1B Rh4 Bd3 Rh2 Bf3 Rh1 Re4 Rh3 R5g4 Kf5 Rg2 Re6 Bf8 Kf6 Rg5 Ng7 Rd4 Rh7 Rdg4 Nh5 Bg7+
1bq1b3/N1N1P3/4qBnk/PB1p2N1/1K1NPrqP/4b3/2q4R/1R3Bnr w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 axb4 d4 c5 dxc5 f5 gxf5 Nf6 Qd4 Ng8 Qg4 hxg4 Kd2 Kf7 e4 d5 a4 b5 c4 g5 h3 Kg7 e6 g3 f6+ Kh6 c6 g2 f7 g4 a5 g3 c7 b3 c5 b2 c6 b4 Be2 b3 Na3 b1Q Bd1 b2 Nb5 Bd6 f8N Ne7 Nf3 g1B Kc3+ Be3 Be2 g2 Nh7 g1Q Bf1 Nd7 Nfd4 Qg4 Ng5 Ne5 Rh2 Bd7 c8B N7g6 c7 Nf3 e7 Be8 Ba6 Ng1 c8N Bb8 Nc7 Qc2+ Kb4 b1Q+ Bb2 Qdd7 Bae2 Qde6 Na7 Qbc1 Bb5 Rf8 Rb1 Rf4 Nac6 Ra6 Na7 Rc6 h4 Rc3 Ndc6 Rd3 Bf6 Rd1 Nd4 Re1 Na6 Qcc8 Nc7 Qc2 Bfe2 Nh3 Bed3 Rh1 Bf1 Ng1
q2NBr2/2PbR2r/3r1PRr/nqB1P3/1K3p1N/1nP1R2N/N1k5/n5r1 w - - 0 1 legal: proof: f4 e5 g4 b5 a4 c5 axb5 f5 d4 Be7 g5 Bf6 gxf6 exf4 dxc5 h5 Qd3 Na6 Qh3 Nb8 Qg4 hxg4 Kd2 Kf7 Kc3 Ke6 h4 Kd5 b4 Ke4 e3 g5 c6 d5 h5 a5 h6 a4 b6 d4+ Kc4 d3 b7 d2 c3 d1R c7 g3 h7 f3 b5 a3 b6 g2 Kb4 g4 Nh3 g1R Bb5 f2 Be8 Kd3 e4 f1Q e5 g3 Nd2 g2 Nb3 a2 Be3 f4 Bc5 Nd7 b8N Kc2 b7 Rd6 Nc1 Ne7 Nc6 Qd3 Rb1 a1N b8R Qf1 Rh2 Rh1 Na2 Qe2 Re1 g1R Rg2 Rh2 Nf2 Rh6 Nh3 Rf8 h8N Rh7 Bd4 Nc5 Ng6 Bd7 Nh4 Ncb3 Rg6 Qf1 Ba7 Rh6 Re3 Qb5+ Ka3 Qc8 Nd8 Nc6 Rb6 Rf7 Rb8 Nca5 Bc5 Rfh7 Rb6 Rd2 Re6 Rd6 Re7 Qca6 Rg4 Rc8 Rg6 Qa8 Nb7 Qf1 Kb4 Rb8 Bf7 Rf8 Nd8 Qe2 Be8 Qb5+
Rn2N3/R1PP3B/R3q1r1/P4n1n/1rqq1N2/2p5/kbP1Rq1p/4BB1K w - - 0 1 legal: proof: e4 d5 h4 dxe4 d4 g5 hxg5 a5 b3 c5 Qd2 c4 Qb4 axb4 d5 c3 Rh2 Bd7 Rh1 Bb5 Nd2 Bc4 bxc4 f5 Nb1 f4 Bxf4 Ra6 Bc1 Ra8 a4 Kd7 g4 Kd6 f4 Kc5 Kf2 e5 Kg2 b5 f5 h5 a5 b3 f6 Kb4 c5 b2 f7 h4 g6 h3+ Kh2 e3 g7 e2 c6 e1N g5 e4 c7 e3 d6 e2 g6 Nf3+ Kg3 h2 Kg2 e1Q Nd2 b1Q Nh3 Rh4 Rg1 Nf6 g8B Ra6 g7 Nh5 Bh7 Qa2 g8R Qee6 Kh1 Qac4 Nf4 Nd4 R1g6 Nf5 Ne4 Qdf6 d7 Qfd4 Bd2 Bd6 Re1 Ka3 f8R b4 Rd8 b3 Rde8 b2 Nf6 b1Q Re2 Ka2 Be1 Ba3 Ref8 Qbb3 Ne8 Bb2 Rff6 Qf7 Rb6 Qce6 Rb7 Qbc4 Ra7 Rb6 Rh8 Rb4 Rhg8 Rg4 Rf6 Rg6 Rh8 Qee3 Rfa6 Qf2 Nd6 Nc6 Rha8 Qfe6 Ne8 Nb8
3R4/1r2pr1P/rPbPqpNB/2B2B1K/1b3P1b/3RNkN1/1N2n3/2b1r3 w - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 b5 axb5 c5 b4 h5 bxc5 Nd7 g5 Ndf6 Qg4 hxg4 Ra6 Kd7 Ra1 Ne8 g6 f6 Bd3 Nd6 Bf1 Nf7 gxf7 Qa5 Bg2 Qb6 Bf1 Qd8 Ke2 Ke6 c4 Ke5 h4 Kf4 d4+ e3 h5 g5 c6 a5 c5 a4 b6 a3 c7 g3 c6 g2 d5 a2 h6 g4 h7 g3 Ba3 Qd6 Nc3 Bh6 f8B Qc5 Na4 Ra7 Nh3+ Kg4 Nb2 g1R Rd1 a1B Nf4 g2 Rd3 Rb7 Ng6 Qc4 Bc5 Bd7 c8N Bf4 c7 Bc6 Rh5 Nh6 Nd6 Nf5 Bh6 Ra8 c8N Ra6 Ne4 Rh1 Rh2 g1R Ncd6 Qb3 Ng3 Nd4+ Ke1 e2 Ndf5 Rg2 Ne3+ Kf3 d6 Rgg1 Rg2 Qe6 Kd2 Rh5 Ke1 Rg5 Kd2 Rh1 Rg1 Rg4 Bh3 e1B+ Kd1 Rg5 Bf5 Ne2 Nh5 Be5 Nh8 Bg3 Ra3 Nf4 Nbc4 Rg7 Rd3 Rf7 Rg2 Bac3 Nb2 Bh4 Rg8 Bcd2 Rd8 Bc1 Ng3 Rg1 Ng6 Bb4+ Nef1+ Kg2 f3 Nd5 f4 Ne3+ Ke2 Nd1+ Ne3+ Kh2 Ne4 Nc3+ Kf3 Re1 Kg4 Ne2 Kh5 Kg1 Ng3 Kf2 Ned1+ Kg2 Ne3+ Kf3
2R1B2r/6Pp/5rPk/1Np2Brb/1N4bb/2N4N/PKnrb2P/1R1n1R2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Ra7 d4 Kd7 d6 Ke8 d5 Ra6 Qd4 Ra8 g4 exd4 f4 Kd7 f5 Qf6 Bg5 Qg6 fxg6 Ke8 Bf6 gxf6 g5 Bf5 Kd2 Bh3 Ke1 Bc8 Kd2 c5 Kc2 b5 e4 f5 g7 f4 a6 f5 d7+ Kf7 d8N+ Kg6 a7 f3 d6 d3+ Kb3 f4 e5 d2 d7 d1R Nc6 b4 d8R f2 Rd4 f3 Nc3 Rd2 Rc1 Be7 Bc4 f1B Na4 f2 Rd7 Nh6 Rd8 Nf5 Nh3 Na6 Rd1 Ne3 Rb1 Nd1 Be2 Bg4 Rc8 Bf6 Bb5 Bfe2 Nc3 f1R Bd3+ Rf5 e6 Bh5 Rc7 Raf8 a8N Bd8 e7 Rf6 Rf1 Beg4 Ka4 b3 Ka3 b2 Rc8 Nb4 Nc7 Nc2+ Kb3 Be2 N7b5 Bhg4 Nb4 Kh5 Rc1 b1B g6 Rg5 e8B Kh6 Bf5 Bh5 Bfd7 Ne1 Be6 Bf5 Rb1 Bfg4 B6d7 Nc2 Bf5 Bc7 Ra8 Bg3 Rc8 Nce3 Ka3 Bf2 Kb3 Bh4 Ka3 Nc2+ Kb3 Nf2 Kb2 Nd1+
2RbbR1K/N1n1k3/P1p2n1b/2PB1n1q/1Pq2rRB/1r1Rb3/2P2b2/B1N5 w - - 0 1 illegal: No proof kernel
4Bb2/kNK1Pnbr/3Pq1pR/3RBN1r/nP4r1/2B1r1P1/4q2B/1r3R1b w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 g3 b5 axb5 h4 Qc2 h3 Qe4+ Be7 Qf3 Bf8 Qg2 hxg2 Kf2 Kd7 Kf3 f5 b4 a5 d4 c5 e4 Kc7 h4 Kb6 e5 a4 d6 a3 e6 c4 e7 g6 d7 a2 h5 c3 h6 c2 h7 Ra5 d5 Ka7 Be2 Nh6 Nc3 Na6 Be3+ Qb6 d8R c1R Na4 Re1 Nc5 Nf7 Rh6 Qe6 Nb7+ Nc5 Bc4 Rb1 Ne2 g1R Nd4 Rge1 Bg1 Na4 Bh2 Bd7 Bd3 Bc6 Rd7 Re4 Rd8 Rb3 Rf1 a1B Rd6 Rg8 h8B Rg7 Rd7 Rh7 b6+ Kb8 Ne2 Bag7 Nd4 Rb1 Bb5 Re3+ Kg2 f3+ Kf2 f4 Nf5 Ba1 Bc3 Ka8 Nbd6 Bb2 b7+ Ka7 b8B+ Kb6 Bd2 Bbg7 Bc3 Bb7 Bc7+ Ka7 Bc6 Ba8 Nb7 Rc5 B7e5 Rb5 Kg1 f2+ Kg2 f3+ Kh3 Ra5 Kg4 Rb5 Kf4 Ra5 Rg1 f1Q Bb5 Qe2 Rf1 f2 Rd8 Qa2 Be8 Rb5 Rc8 Qe2 Rc5 Ra5 d6 Rb5 Rd5 Rc5 Nd8 Bc6 Nb7 Ra5 Rc5 Bg2 Rd5 Bh1 Rd2 Rb5 Nh4 Qh5 Rg1 Rd1 Bf6 Rg5 Bfe5 Rf3+ Ke4 f1R Kd4 R1f2 Rf1 Re3 Rd3 Rff5 Rd2 Nb2 Kc5 Qe2 Rd5 Rg4 Kc6 Rh5 Kc7 Na4 Nf5 Rb1
q1b1n3/r1P2R2/3B4/P1Kpb2P/3Pq2N/k3rN2/B1bnRRn1/4NqqN w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 axb4 Qf3 c4 Qb3 cxb3 Ke2 g5 Kd3 b5 Kd4 d5 a4 Kd7 f4 Kc6 h4 e6 c4 b2 c5 g4 a5 b3 h6 g3 f6 b4 f5 g2 f7 Bd6 f8R Rh7 f6 Nd7 f7 Nb6 h5 Nf6 Bc4 Ne8 Nh3 g1Q+ Nf2 Ra7 Na3 b1Q Ra2 b2 Rh2 b3 Nc2 Bf4 Ne1 e5+ Kc3 e4 Kd4 e3 Nh1 e2+ Rf2 Rg7 h7 Rg3 h8N Re3 Ng6 Qc2 d3 b1Q Ba3 b2 Nh4 Bh2 Bb3 Kb5 c6 Nc4 c7 Nd2 Nhf3 Qcc1 Bc4+ Ka4 Kc5 Be5 d4 Qe4 Nc2 b1B Nce1 Bb7 Rb2 Bc2 Ba2 Qa8 Ng2 Bg3 Kb6 e1N Bd6 Bb1 Rc2 Nf1 Rce2 Bc2 Kc5 Qb1 Rh8 Ka3 f8N Bc8 Rh7 Bh2 Rf7 Nd2 Ng6 Be5 N6h4 Qa1 Nf4 Ng2 Nd3 Qaf1 Nde1 Bf5 Be7 Bd7 Bd6 Bc8
4BN1b/R2q1BB1/2P2rr1/1k2Kbp1/Nr2P3/BRn5/2qP1NP1/rrr2n2 w - - 0 1 illegal: No proof kernel
1qNbBkbB/r1b1p3/1B5R/2K1PbBR/2N1n1p1/2N1P1P1/2r3rP/5n1b w - - 1 2 legal: proof: d4 h5 a4 b5 axb5 c5 g3 cxd4 Qd2 h4 e3 h3 f3 Qc7 Qf2 Qf4 Qg2 Qe4 fxe4 hxg2 Kf2 g5 c4 d5 b4 f5 b6 a5 b5 a4 c5 f4 c6 f3 b7 g4 b6 a3 c7 d3 Nd2 a2 Ne2 g1R Bb2 d4 Nc4 d2 Na3 d1Q Nc1 d3 Nc2 d2 Bg2 Bh6 Ne1 Na6 b8B Nf6 b7 Kf8 Be5 Nc5 Ned3 Bf4 Ba7 Nb3 b8B Bf5 Bb6 Ra7 Ne2 Qb1 c8N d1B Nb2 Nd2 Nc4 Nf1 Nc3 Bb3 Bed4 Bd6 B8c7 Bb4 Bf4 Ba5 Bg5 Qb2+ Ke1 Rh6 Rc1 a1B Rc2 f2+ Ke2 Rg6 Kd3 Ba2 Bf3 Rg2 Be5 Qb3 Kd4 Bb2 Kc5 Rg8 Bd8 Qb8 Bb6 Bb3 Rd2 Rh8 Rd5 Ba3+ Kb5 Bd6 Kc6 Bc7 Kc5 Nd2 Rc1 f1B Ra1 Be2 Rd1 Nf1 Rd6 Rh6 R1d5 Bd3 Bd1 Be2 Bd4 Bf3 Re5 Ba2 Ba4 Bd8 Be8 Rh8 Nb2 Bg8 Nc4 Rh6 Nd1 Bd7 Na3 Rd2 Bf4 Nh5 Bc7 Rf6 Nc4 Bh1 Nc3 Rg2 Rg5 Rf7 Bh8 Nf6 e5 Rc2 Rh5 Ne4+ Kd5 Bb6 Bg5 Rff2+ Re6 Ba5 Kd4 Rg2 Reh6 Bb4 Ba5 Bd6 Bc7 Bf5 Bb6 Bgh7 Kd5 Bg8+ Kc6 B6c7 Kb5 Nd6+ Kc5 Ne4+
b6K/2RPq1q1/1BPbk2b/1N3Np1/3br1bR/B5pP/4BnP1/2BN2nr w - - 0 1 illegal: No possible last move, all moves rejected
4BNnK/Rn1nr1P1/1rP2R2/pR1R1n2/P1b2qB1/p4Pb1/3qkN2/2B2n2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 exf5 b4 d4 cxd4 Qf3 Nf6 Qd3 Ng8 Qa3 bxa3 Ke2 Kf7 Kf3 a5 Ke4 d5+ Ke5 h5 g4 h4 c4 h3 b4 h2 b5 d3 b6 d2 c5 d1N f6 Kg6 b7 d4 c6 d3 f7 d2 f3 Ne3 Bg2 d1N Ne2 Ra7 Nd4 Be6 Bh3 Nf1 Nc3 Bc4 Ne6 Qd2 Ne4 Nde3 Nf2 Nf5 Rb1 Ra6 Rb5 Rh7 Rd5 Rb6 Rg1 Bh6 f8R h1Q Rg2 Qh2+ Rg3 Na6 b8R Nc5 Rb7 Rg7 Ra7 Nb7 Rb5 Rf7 Rd8 Rg7 Rdd5 Rh7 Nc5 Rf7 Nd7 Bg7+ Ke6 Be5 Rg1 Bg3 Nf8+ Kg7 g6 Kh6 g7 Kg5 Rh1 Kf4 g5 Ke3 g6 Ke2 Bg4 Qhh6 Rh2 Qhg5 Rh6 Qgf4 Kd7 e5+ Ke6 Nge7 g8B e4 g7 e3 Bh7 Ng8 Rg6 Ke1 Rf6 e2 Bg6 Rc7 Nh3 Kd1 B6h5 e1N Nf2+ Ke2 Bg6 Nd3 Be8 Nge7 Kf7 Ng8+ Kg6 Ne5+ Kh7 Re7 Kh8 Nd7
Br4kN/4B1b1/p1Bpn3/P1b2P2/r2N1P2/R1qnK1bR/1n1P1Rqb/5B2 w - - 1 2 legal: proof: b4 c5 bxc5 h5 e4 b6 Qg4 hxg4 e5 Bb7 f4 Bf3 e6 fxe6 gxf3 e5 Bb5 e4 Bc4 Rh3 Bf1 Rh8 Kf2 Kf7 c4 e5 a4 g5 h4 d6 h5 b5 h6 e3+ Ke2 e4 f5 g3 h7 g4 f4 b4 c6 g2 c5 b3 c7 g3 c8B b2 c6 Bg7 c7 Nc6 Nf3 g1B Rh3 g2 Rh4 Qg5 Rh5 Nd8 Rh4 Bh2 Ba6 g1B c8B Ne7 Nc3 b1Q Bab7 Qb3 Ra2 Ne6 Bc6 Nd5 Ra3 Nb6 Bb2 Nc4 Nd5 Qc3 B8b7 Rhb8 h8R Bf2 R8h7 Qg2 Rh3 Kg8 Ba1 Nb2 Nd4 Qg1 Rf3 Qg2 Rhh3 Bfg1+ Ke1 e2 Ne7+ Kf7 Ng6 Kg8 Nh8 Be3 Nb3 Bc5 Nd4 a6 Bc8 Rb4 a5 Ra4 B8b7 Rb8 Ba8 Qg5 Kf2 e1B+ Ke2 Beg3 Rf2 e3 Kf3 e2+ Ke4 Qb4 Kf3 e1N+ Ke3 Ned3 Kf3 Nd1 Nc2 Bh4 Bf6 N1b2 Be7 Qc3 Nd4 Qg2+ Ke3 B4g3
4R3/p1bN3N/K1RNq2q/Pp1b1Prq/3NP3/qn2nBb1/1P1k1B2/6rR w - - 0 2 legal: proof: e4 d5 d4 e5 g4 h5 Qe2 f5 gxh5 f4 Qe3 fxe3 c4 exd4 cxd5 Be7 Ba6 Bd6 Bf1 Bf8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Kf4 a4 g5 h4 c5 a5 c4 h6 c3 h7 d3 f3 c2 h5 d2 d6 d1Q d7 g4 h6 g3 Bd3 g2 Rh3 Qf6 d8R Ne7 Rg3 Rg8 h8N Na6 h7 Nc5 Re8 Nb3 Be2 Nf5 Na3 Bd6 Nc4 Bc7 Nd6 Be6 Nhf7 Bd5 h8N Rg5 Ne5 Qe6 Nhf7 b6 Bd2 c1Q Ka6 b5 Be1 Qd3 Bd1 e2 Nd7 Ke3 Bf2+ Kd2 f4 e1B Bf3 Ne3 Ne2 g1Q f5 Qh2 Nd4 Qh5 Rh3 Qdc3 Rh1 Qb4 Ra4 Qa3 Rc4 Rc8 Rc6 Rd8 Re7 Rdg8 Re8 Rg1 Ng5 Rg7 Nh7 R7g5 Bh4 Bg3 Nb7 Bgf4 Bf2 Bg3 Nd6 Qd1 Bg2 Qhh6 Bf3 Qe2 Bg2 Qg4 Bf3 Qgh5
4Rnq1/1r1n2pp/1BKB1P2/N2P4/N1Bq2P1/rn4bP/5N1k/1qRbB2q w - - 0 2 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 e4 f6 d4 exd4 e5 f5 Qf3 Be7 Qf4 Bf8 Qe4 fxe4 Ke2 Ke7 f4 a5 b4 c5 e6 Kf6 b6 Kf5 g3 Kg4 e7 c4 e8N e3 b5 c3 Kd3 a4 Kc4 a3 b7 c2 f5 d3 f6 d2 b6 d1Q Kb5 e2 Nh3 e1Q Nd6 a2 Bc4 Nd7 b8B Ne7 b7 Ng6 Bc7 Ra3 b8B Qd4 Nb7 Bd6 Bd2 c1N Nc3 Ngf8 Kc6 Nb3 Bb6 Qb1 Be1 Kf3 Nf2 Kg2 h3 Bf4 Rg1+ Kh2 Na5 Ba6 g4 Bg3 Bf1 Be2 Bd6 Bd1 Bc4 Qe8 Na4 Qf7 Rf1 Qg8 Be2 Qf5 Rc1 a1Q Bd3 Qfe4 Bb5 Qab1 Bc4 Qh1 Rg1 Be5 Rg3 Bf4 Rgc3 Bg3 Re3 Qe6 Re5 Ng6 Rh5 Rb8 Rg5 Ngf8 Re5 Qg8 Re8 Rb7
2b1R3/bk1pK1Pr/2qrNrr1/n2q2p1/n2B2N1/Rb1P1BN1/2P3NP/6R1 w - - 0 1 illegal: No proof kernel
3RK3/1p1PBp1R/1Pn1Nr1n/3B1B1N/2b2PPq/3r4/1B1N3q/2nqk1qr w - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 dxc4 b4 Be6 b5 Bh6 Qa4 Qc8 Qb4 axb4 e3 Bg7 d5 Bd4 exd4 Qd8 Ke2 Bd7 Ke1 Bc8 Kd2 Kd7 Ke3 Kd6 Ke4 e5 g4 c5 f4 h5 a4 b3 a5 h4 g6 c3 b6 b2 a6 c2 g7 h3 a7 c4 Rh2 c3 Ra5 Rh6 Nd2 b1Q Ne2 Qb2 Bg2 Rf6 Ng3 Be6 Nh5 Nh6 g8B Nc6 Bh7 Qe7 Rc5 Rd8 a8N Qd7 Rh1 h2 Bf5 Qe7 Rd1 h1R Nc7 Qa2 Ba3 c1Q Bb2 c2 Rc3 Qca1 Rh3 c1N Bf3 Ra8 Bg2 Ra3 Bf3 Rd3 Rh2 Kd7 d6 Q1b1 d5 Qc2 Nc4 Qaa4 Rh4 Qh2 Bg2 Qc2 Nd2 Qc5 Rh3 Qcg1 Rh4 Rg6 Rh3 Qh4 Bf3 Rf6 Bg2 Kd8 d7 Ke7 d8B+ Kd6 Bf3 Kc5 d6 Kb4 Be7 Bc4 Ne6 Ba2 Ba3+ Kc3 Bb2+ Kc2 Bg2 Rb3 Kd5+ e4 Bf3 Kd3 Bg2+ Ke2 Bf3+ Kf2 Kc5 e3 Bd5 e2 d7 e1Q Kd6 Ng8 Kc7 Ne2 Ra1 Qg5 Nhg7 Nc1 Rh7 Nh6 Nh5 Rd3 Kc8 Bb3 Ra8 Qgh4 Kc7 Qd1 Rc8 Na5 Kd8 Ke1 Ke8 Bc4 Rd8 Nc6
1R1BN2n/1Bn1pN2/p1KbP3/R5Pb/n3k1r1/2q1P3/r1pn1r1P/BBN5 w - - 0 1 illegal: No proof kernel
kn1r1n2/2q4K/1B4p1/rBRp3b/3PN1pP/5Pbq/1qN1BRP1/1N1q1N2 w - - 0 2 legal: proof: b4 b5 e4 f5 a4 fxe4 axb5 h5 Qg4 c5 bxc5 hxg4 Ke2 d5 Ke3 Kd7 Kf4 Kc7 Kg5 Kb7 Kg6 e5 h4 a5 c4 e3 c6+ Ka7 c5 e4 f3 a4 c7 e2 c6 e1Q Be2 a3 Ra2 Ba6 c8B e3 c7 Be7 Bd7 Bd6 c8N+ Kb7 d4 Nf6 b6 Qg3 Bdb5 Qh3 Bd2 Nfd7 Ba5 Bg3 Rb2 Ra7 Nd6+ Ka8 Ne4 a2 Rc2 a1Q Rc5 Re8 Kh7 Qc3 Bec4 Qa1 Ne2 Qb2 Rf1 Qc7 Rf2 Rd8 Bd3 Bb7 Bdc4 Bc6 Bd3 Be5 N2g3 e2 Nf1 e1Q Bdc4 Ra6 Be2 Bg3 b7+ Ka7 Bd2 Ra5 Bf4 Qd1 Bd6 Na6 b8N Ka8 Be5 Nb6 Bf4 Be8 Nc6 Nd7 Nb4 Nab8 Nc2 Bh5 Bd2 g6 Be1 Ra3 Ba5 Ra1 Bb6 Ra6 Nec3 Ra5 Ne4 Nf8+
3r2K1/q1pr1P1p/4bR1N/n1P2pRP/3Bp3/1B1BNkbR/1P1Br2q/6n1 w - - 0 2 illegal: No possible last move, all moves rejected
3B3b/2bb1np1/2kqNP1p/4pBP1/R3N1p1/rqBK2P1/P3r2N/nB5R w - - 0 2 illegal: Other
2NB3R/1PBk1q1R/1p3nP1/b3pr1N/1PBrr2p/3q4/KN1pPNb1/7n w - - 0 2 legal: proof: g4 c5 h4 g5 a4 f5 d4 cxd4 a5 b6 a6 Qc7 Qd3 Qb7 axb7 Nh6 Qf3 Rg8 hxg5 Rh8 g6 Ng8 g5 Bg7 Qf4 Bf8 Qg4 fxg4 Kd1 a5 f4 h5 c4 e5 Kc2 d5 Kb3 a4+ Ka2 d3 g7 a3 c5 d2 b3 d1R g6 g3 c6 g2 c7 h4 f5 d4 f6 d3 f7+ Kd7 Nh3 g1Q Nd2 Qg3 Bg2 Ra4 Nf2 Nf6 g8N Ne4 Rf1 Rh5 Nc4 Bb4 f8B Ba5 Nb2 Rf5 Bd6 Qh3 Bf3 Ng3 Bd5 Re4 Bc4 Nh1 Bg5 Rd2 b4 Qe3 Rad1 Qg3 Kb3 a2 Bd8 a1Q Rc1 Qh3 Rc2 Qd1 Ka2 Qf3 Rc3 Rg5 Rc1 Qf7 Rc3 Rf5 Nf6+ Kc6 Rc2 Nd7 Nh5 Nf6 Rc1 Be6 c8N Bd5 Rc2 Kd7 Rc3 Rc2 B6c7 d2 Rf3 Rc3 Rd3 Qc2 Rd4 Rd3 Rc1 Ke8 Rf1 Bc6 Rd7 Rdd4 Rc1 Qd3 Rc2 Qd5 Rh7 Qf7 Rh8+ Kd7 Rc3 Qe3 Rd3 Rd6 Rd5 Qd3 Rc5 Rdd4 Rd5+ Ke6 Rd7+ Bd5 Rh7 Qe7 Rh6 Rg4 Nd6 Qe8 Rg7 Qf7 Rh8 Kd7 Rgh7 Bg2 Nc8 Rge4
k1B4R/1b2P1BR/1r1ppn2/B5N1/nn2pq1r/3p2Pr/3PP1KN/3n2BR w - - 0 1 illegal: No proof kernel
B1bBR3/1P6/1R1Nbbr1/pKq1p3/n1p3p1/1B3N1p/P1Pr2kP/2B3nN w - - 1 3 legal: proof: e4 d5 exd5 g6 Ba6 Nh6 Bxb7 Ng8 f4 Be6 f5 gxf5 Kf1 Bd7 Ke1 Bc8 g4 Be6 g5 Bc8 Qg4 fxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 b4 f5 g6 h5 g7 e5 b5 a5 d6+ Nc6 d5 h4 b6 h3 d7 f4 d6 f3 Bd2 f2 Bf4 f1B+ Ne2 Kf3 Nd2+ Kg2 Rd1 Ne7 g8B Bg7 Nf3 Rh6 Kb5 Rg6 Bc1 Bf6 Bb3 Qf8 d8N Nd5 d7 Qe7 Nf7 Qc5+ Ka4 Ra6 d8B Nd4 Ng3 Ne2 Ba8 Ng1 b7 Rd6 Rd4 Rd7 Nd6 Bd3 Rc4 Bf5 Rb4 Be6 Rb6 Qc3 Kb5 c5 Bg5 c4 Bd2 Qd4 Bc1 Ne2 Rf1 Ng1 Nh1 Nc3+ Ka6 Na4 Kb5 Qf2 Rd1 Qe3 Rd4 Qf2 Rf4 Qd4 Rf5 Qf2 Rh5 Qd4 Rh8 Qe3 Re8 Qf2 Nf7 Rd2 Nd6 Qc5+
r1N3k1/NrRqqp1N/p3P1bp/P4P2/2Kn3R/Bn5P/bbB1N1q1/1q4B1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 f4 g5 f5 Qe7 Qd4 Qd8 Qf4 gxf4 Kd2 c5 Kc3 d5 g4 a6 a4 f3 b4 f2 e4 h6 b5 Nd7 g5 Bg7 g6 Kf8 b6 Ne7 b7 Kg8 b8B Nc6 h3 Nd4 a5 Qe7 Bd3 f1Q e6 Qg2 e5 Ra7 Ra3 Rb7 Ra4 Bf6 Ne2 Bg7 Kd2 c3+ Ke3 c2 Nbc3 c4 Ba7 Bf6 g7 Nc5 Ba3 Ncb3 Nb5 c3 Rc1 Bd7 Be4 Bc6 Kd3 Qd7 Rg1 c1Q e7 c2 e8N Qe1 Ned6 c1Q Nc8 Qh4 e6 Qb1+ Kc3 Be5 Bb6 Qhe7 Nba7 Bb5 Bc2 Bc4 Rb4 Na1 Bd8 Ba2 Rc1 Nab3 Kd3 Nc6 Rg4 d4 Kc4 d3 Bb6 d2 Rh4 d1B Bbc5 Bb2 Bg1 Kh7 g8N Ncd4 Nf6+ Kg7 Nd6 Ra8 Nh7 Kg8 Ndc8 Qde8 Ng3 Bh5 Ne2 Bg6 Rd1 Nf3 Rd7 Nfd4 Rc7 Q8d7
B5B1/qpr5/q1p1p1NN/1Pr1PbK1/1rnR3b/2bR3b/NNP1PB2/3n1k2 w - - 0 1 illegal: No proof kernel
B1RB2Q1/r1P1R2P/2r1QP2/4R1b1/2rq4/2PbnK2/2n1qn1q/Q2B2k1 w - - 0 1 legal: proof: d4 c5 dxc5 a5 a4 g5 b4 b5 axb5 f5 bxa5 Nh6 e4 Ng8 exf5 Qb6 Qg4 Qc7 Qd1 Qd8 f4 h6 g4 Rh7 f6 Rh8 f5 Qb6 Ne2 Qc7 Nf4 Qd8 Nd2 gxf4 Ne4 h5 g5 Ba6 Nf2 Bc8 Ng4 hxg4 Kf2 Kf7 h4 d5 h5 e5 a6 g3+ Kf3 d4 h6 e4+ Ke2 e3 a7 d3+ Kf3 d2 c6 g2 b6 g1Q h7 e2 c7 e1R Bd3 Bh6 Bf1 Na6 Rh2 Nb4 Rf2 Ne7 Bb2 Ba6 Bd4 Ned5 Be3 Qh2 Re2 Bd3 Ra5 Rc8 Bc5 Ne3 a8B Qd4 Qa1 d1N Be7 Nf2 Bd8 Rc1 Re5 Re8 Bg2 Re6 b7 Rc6 b8R Rc4 Rb6 Rb8 Rbe6 Rb7 Re8 Ra7 Rg8 Rf1 c3 Nbc2 Bh3 Rb1 Bg4 Rb6 Rge8 Rbc6 R8e7+ Kf8 g6 Bg5 f7 Kg7 f6+ Kh6 g7 Kg6 Be6 Kh5 g8Q Kh4 Bd5 Kh3 f8Q Qg1 Qe6+ Kh2 Qfg8 Kh1 Qa6 Qh2 Rd2 Kg1 Qa2 Na1 Rb2 Nac2 Rb8 Rca4 Bb3 Rac4 Rc8 Be4+ Ke2 Bd3+ Kd2 f3 Qb2 Ne1 Bd1 N1c2 Qa1 Nfg4+ Kc1 f2 Kd2 f1Q+ Be2 Nf2 Bd1 Qfg2 Qd5 Qgh3 Qde6 Bf5+ Ke2 Qf1+ Kf3 Bd3 Qb1 Qe1 Qa1 Qe2+
k2b2QK/2p3Q1/2rpPB2/n1bN4/2BQp3/2rP1r2/Nqb1PP1n/5NqB w - - 0 1 illegal: No proof kernel
5Q2/pqk1rQ2/2b2np1/P3bR1B/2pRPQ2/K1Pq1p2/2p2PpB/2rR2B1 w - - 0 1 legal: proof: g4 e5 d4 b5 c3 h5 Qc2 b4 Na3 b3 Nh3 Nc6 Qd1 f6 Nc2 bxc2 Ng5 Nce7 Nf7 f5 dxe5 f4 Nh6 Nf5 gxf5 Ne7 Ng4 hxg4 Qd2 Ng8 Qd4 Bb4 Qd1 Bf8 Kd2 d5 h4 Kd7 b4 c5 a4 g3 e4 d4 e6+ Kd6 b5 g6 b6 c4 f6 g2 a5 d3 b7 Bg7 b8B+ Qc7 e7 Be6 e8Q Bh6 h5 Bd5 f7 Nf6 f8R Bg7 h6 Nd7 h7 Kc6 Qf7 Qe5 Be2 Qg5 Bh5 Qh4 Qf3 Qh3 Rd1 Nf6 Qe3 f3 Bh2 Re8 Qf4 Re7 Bg1 Qf5 Ba3 Qe6 Kc1 d2+ Kb2 Qd7 Bd6 Qb7+ Ka3 Kd7 Rab1 Bc6 Rb5 Qc7 Rf5 Qb7 Ra8 Rd8 h8Q Rb8 Rb1 d1Q Qhf8 Qd3 Rd1 Bh8 Qg4 Bg7 Bdh2 Bh8 Qf4 Rd8 Re5 Kc7 Rb8 Rd5 Rd8 Rb5 Rd4 Rb1 Qd5 Rc1 Qdf7 Ng4 Rg5+ Be5 Rf5 Nf6
2qR4/2P1P1rQ/p3B3/2pK3b/3p2QP/N2Pp1b1/rRp1R1RR/3k1q2 w - - 0 1 illegal: No proof kernel
1rr3bq/2R1bPB1/BQb1n2P/3nQ3/1p2bnb1/PPQQ4/Q1N3k1/2K5 w - - 0 1 legal: proof: g4 a5 e4 f5 exf5 h5 gxh5 c5 d4 e5 dxc5 a4 Nd2 Ra6 Nb3 Ra8 Nd4 exd4 b3 a3 Rb1 Ra4 Rb2 axb2 Qf3 Ra3 Qd1 Ra8 Kd2 Ke7 f4 Kf6 h4 b1B c4 g5 c6 d5 a3 b5 c7 d3 h6 b4 c5 g4 h7 d4 h5 g3 c6 g2 h6 Ne7 Nf3 g1N Ne1 Nh3 Bb2 Nd7 Kc1 Nc5 Nc2 Be6 c8Q Rb8 c7 Nd5 Qb7 Be7 c8Q Bg8 Qb6+ Ne6 Qc3 Qf8 Rg1 Qc8 Qe2 Qf8 Rg7 d2+ Kd1 Qd8 Qef3 Qc8 Ba6 Qf8 Qfd3 Qc8 Ke2 d1B+ Kd2 Bf3 Kc1 Be4 Ne3 Bc2 Ba1 Bd1 Nc2 Bh5 Bb2 Be8 Ba1 Bc6 Bb2 Bc5 Rc7 Be7 Ba1 Kf7 f6 Kg6 f7 Kf5 f8Q+ Kg4 f5 Nhf4 f6 Qd8 Ne3+ Kf3 Nc2+ Kg2 Qe8 Qc8 Qb2 Qd8 Qa2 Rc8 Qc3 d3 Qd7 Bf7 Qe5 Re8 h8Q Bg8 f7 d2+ Kb2 d1B Kc1 Bg4 Qhg7 Ne3 Qd3 Ned5 Qgf6 Qd6 Qec3 Qe5 Qg5 Qf6 Qge5 Qh8 Qed4 Kh1 Qcc4 Rb8 Q4e3 Bg6 Bg7 Rec8 Qcc3 Kg2 Qee5 Be4
2bn4/1PB3Rr/1QbbN1NP/1bPP1b2/4rN1Q/q2NrKn1/p7/4Nk2 w - - 0 1 illegal: No proof kernel
5K1N/2PR3r/1n1RPQ2/n1n1r3/2bqR3/1PBRb2R/Q2Pk2p/r2n2q1 w - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 fxe5 c5 h4 c4 hxg5 Qf6 Rh3 Qe7 Rh1 Qd8 e3 d5 b3 Bd6 Nc3 Ba3 Na4 Bf8 Nb2 c3 Bd3 cxb2 c4 Bd7 c5 Bc8 Bc4 dxc4 Kf2 Kd7 Kf3 Ke6 Ke4 b1Q+ Qc2 h5 g4 a5 c6 a4 c7 a3 g6 h4 g7 f6 b6 h3 b7 a2 g5 c3 g6 Ne7 g8R Rh5 g7 Nec6 Ne2 Na5 Bb2 Nd7 b8Q Ba6 Qb6+ Bd6 Rh8 Qg1 g8R Bc4 Rh7 f5+ Kd4 f4 Rg3 f3 Rf1 f2 e4 a1R Rd3 Nf8 Rd7 Rh7 Qb1 c2 Qa2 c1N Bc3 Qh4 Qc6 Re8 Re1 Ree7 Nf4+ Kf7 e6+ Kf6 e5+ Kf5 Ree3 Kg4 Ng6 f1N Nh8 Bc5+ Ke4 Bb6 R3d6 Nd3 Rf3 Re8 e7 Ne3 Rh2 Nd1 Re3 Nb4 Red3 Be3 Rh1 Kg3+ Kf5 Qd4 Kf6 Kf2 Qa6 Ke2 Qb6 Rb8 e8R Na6 Qc6 Nc5 Ree6 Rh6+ Ke7 Rb5 Ke8 Rh7 Qf3+ Ke1 Qf6 Ke2 Ree7 Ng6 Ree6 Ne7 Kf8 Nc8 Re8 Na4 e6 Ncb6 Rb8 Re5 Rbd8 Qf4 R6d4 Nc5 Re4 Qfg4 R7d6 Qf4 R8d7 Qh4 Rh2+ Qhf2 Rg2 h2 Rg3 Qf4 Rh3 Qff2 Rg4 Qf4 Rgh4 Qe4 Rg4 Qd5 Re4 Qd4
b1R1K3/1PQ3Q1/1R3b2/pb4PQ/1q2p1P1/k4rQn/N1qQnn1P/5rB1 w - - 0 1 legal: proof: e4 b5 f4 g5 fxg5 d5 exd5 c6 a4 Ba6 axb5 Qd7 b6 Bc8 b7 Qd8 b4 h5 g4 h4 b5 Qd6 b6 Na6 Nc3 Qd8 Bb5 cxb5 Ne4 Nb8 Ng3 hxg3 Ke2 Kd7 Kd3 Kd6 Kd4 a5 c4 f5 Rb1 g2 Ne2 g1N Nc3 b4 Na2 b3 d3 b2 Qd2 f4 c5+ Kd7 Ke5 f3 d4 f2 d6 Kc6 d5+ Kb5 d7 Ka4 Ke6 f1B Kf7 e5 c6 Qc7 d6 Bb5 Ke8 Bg7 d8Q Rh3 d7 Ka3 Qd4 Bf6 Be3 Rf3 Qe7+ Qd6 d8Q Qb4 Qd2 Nh3 Qdc7 Ra7 Rbc1 b1Q Bg1 Qc2 Qg7 Be6 Qcf7 Bd5 Qh5 Ra6 Qd7 Rf1 c7 Nc6 c8Q Nd4 b8Q Ba8 b7 Ne2 Qcc7 Rc6 Qg7 Rc3+ Qcd7 Rcf3 Qc6 e4 Qg3 Ne7 Qcd7 Nc6 Qdc7 Qd1 Rc5 Qc2 Rc4 Ne5+ Rc6 Ba6 Rb6 Nd3 Bf2 Rb1 Rc1 Bc4 Bg1 Ndf2 Qc8 Bb5+ Qcd7 Qcb2 Rc8 Qc2 Qc6 Rf1 Qcd7 Ba6 Qdc7 Bb5+
1qR2b1R/p3P1B1/3QR1pr/1q4Pn/2rq2np/P2R3Q/1kN3KP/2R1q3 w - - 1 3 legal: proof: c4 d5 cxd5 c5 a3 c4 e3 c3 Bc4 b5 Ba2 b4 bxc3 b3 c4 bxa2 c5 Qa5 Kf1 Qb6 Ke1 Qd8 d4 e6 e4 Qa5+ Nc3 Qb5 d6 Qd7 d5 Bb7 Nce2 e5 Nd4 exd4 f3 Ba6 e5 Qd8 Bd2 Bd3 Bc1 Be4 fxe4 Qd7 Qg4 Qc7 Qd1 Qd8 Kf2 Kd7 g4 h5 g5 f5 Bb2 d3 Qf3 h4 Ne2 g6 Rad1 a1Q Nd4 d2 Kg2 f4 Nc2 Nf6 Qh3+ Ng4 c6+ Ke8 c7 Kf7 c8R Rh6 Rde1 d1Q d7 Qd4 d6 Ke6 Bc3 Qc7 d8Q Nd7 Rhf1 Nf6 d7 Qb7 Rc1 Qb5 Rfd1 Qab2 Rd3 Nh5 Qc7 Rb8 d8R Rb7 Qc5 Rc7 Qb4 Rc4 Qd6+ Kf7 Re8 Q2b4 Re6 f3+ Kh1 f2 Kg2 Kg7 Re7+ Kg8 e6 Qb8 e5 Q4b5 Ree8 Kg7 e7 Kf7 Qb4 Ke6 Qd6+ Kf5 e6 Ke4 Red8 Ra4 e8R Rc4 Qb6 Ke5 e7 Ke4 Rd6 Ke5 Re6+ Kd5 Rg1 f1Q+ Kh1 Ra4 Ba1 Bg7 Rcd8+ Kc4 Rc8+ Qdc5 Rh8 Bf8 Bc3 Kb3 Qd6 Rc4 Bf6+ Ka2 Bg7 Qa1 Rge1 Qcd4 Kg2 Kb2 Rf1 Qc1 Rh1 Qe3 Rc1 Qe1
5R2/2B3bn/b1r1P1rb/qRR2p1n/2p1K1Q1/2PRRP2/2QbbP2/k3Nr2 w - - 0 1 illegal: No possible last move, all moves rejected
BnB3q1/b4bQ1/1PQ1bBR1/Q1PPP3/pr2Q3/K2p4/1r1Nn3/2r1kr2 w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 fxe5 c5 g4 Bd6 gxh5 Bf8 b4 c4 d4 Qc7 Ra3 Qd8 Rd3 cxd3 c4 d5 c5 Ke7 Na3 Ke8 Nc4 dxc4 Kd2 Kd7 Kc3 Ke6 Kb2 Kd5 h4 Ke4 e6 g5 h6 f5 d5 a5 b6 f4 e7 a4 e8B f3 b7 f2 h5 g4 b5 c3+ Ka3 c2 h7 g3 b6 g2 h6 Ra5 Qe1 Rb5 Bc6 Bd6 Nf3 g1R Bg5 c1R Qa5 Rb4 Bh3 f1B Bf6 Ke3 Nd2 Kf2 e4 Be2 e5 Rgf1 Rg1 Bh5 Rg6 Ne7 Bf5 Rg8 h8Q Ke1 h7 Be6 Qg7 Rb2 Bg4 Nf5 h8Q Nd4 Qhh7 Ne2 Bf5 Rh8 Bg4 Qg8 Bf5 Bf7 Bc8 Bg4 Qh1 Bge6 Qe4 Nd7 b8Q Rh4 Qba8 Bb8 Qb7 Ba7 Qc7 Nb8 Ba8 Rg4 Qc6 Rgf4 Qf5 Rd4 Qe4 Rdb4
1Qb3nn/RBP1b1k1/pKQ5/Pb4Nb/pnQ5/1qPr4/3BP2B/4Br2 w - - 0 1 legal: proof: g4 c5 f4 e5 fxe5 b5 a4 g5 b4 h5 gxh5 c4 a5 c3 Ra4 bxa4 dxc3 Qb6 c4 Qd4 c5 Qf4 Nc3 Qf6 Nd5 Qd8 Nf4 gxf4 Kf2 f5 h4 Kf7 h6 d5 h5 d4 b5 a6 c6 f3 h7 d3 Ke3 f2 c7 d2 h6 Kg6 b6 Be7 e6 Qd5 Nh3 Nc6 Bg2 f1B Ng5 Ne5 b7 Bd7 b8Q Qb3+ Kd4 f4 Bb7 f3 Qe1 d1N Qh4 f2 Bd2 Nb2 c3 Bf6 Kc5 Bb5 e7 Bg2 e8Q+ Nf7 Rb1 f1B Qc6 Bf3 Qc4 Nd3+ Kb6 Bh3 Rb2 Bc8 Be1 Ne7 Rb1 Rd8 h8B Rd4 h7 Nb4 Bg7 Nh8 Bh6 Bh5 Rb2 Ng8 Rb1 Nf7 h8B Rd3 B8g7 Nh8 Bf8 Bd7 Bd6 Be7 Bh2+ Be6 Nf7 Kf6 Bhd2 Kg7 Ng5 Bc8 Q6d5 Bc6 Qa7 Be6 Bc8 Qd1 Qdc5 Bce8 Kb7 Nc2 Rb6 Bb5 Qc6 Rf3 Bd7 Rc8 Qb8 Rd8 Bc8 Rf1 Ka7 Bh3 Rb7 Nb4 Kb6 Qb3 Ra7 Rd3 Bb7 Bc8
8/2b1pr2/KN1p1PB1/Q2R1r2/PnpPQNP1/4r1n1/1Nqk1nQ1/1Q4b1 w - - 0 1 legal: proof: f4 a5 b4 b5 bxa5 h5 c4 g5 a4 f5 e4 b4 Ra3 h4 g4 Bg7 Rg3 Ba6 Bb2 Bb5 cxb5 hxg3 Be5 Bf8 exf5 Ra6 f6 Ra7 f5 Ra8 Bf4 gxf4 Ke2 Kf7 Kd3 c5 Kc4 d6 h4 g2 d4 f3 a6 b3 b6 b2 Kb5 f2 a7 c4 b7 Rh6 h5 Rh7 h6 Nc6 b8N Nb4 Nc3 b1R Rh5 Rb3 Nd7 Qe8 Nge2 g1B Qb1 Qc8 Bg2 f1N Nd1 Re3 Nb2 Ng3 Nb6 Qe6 Bb7 Qe4 Nf4 Qc2 Be4 Rc8 a8Q Rc6 Nbd5 Rc5+ Kb6 Rg7 h7 Ra5 h8Q Rh7 Qc8 Bh6 Qc7 Qc3 Ne6 Qc2 Bd3 Rg7 Qh7 Re1 Qc6 Bhe3 Nef4 Na2 Rg5 Rc5 Ka6 Bd2 Qh2 Re4 Qg2 Ba5 Rh5 Bd8 Nb6 Bc7 Rg5 Rce5 Qb5 Re3 Qa5 Nc1 Be4 Nd3 Rh5 Nf2 Rg5 Kf8 f7 Nf6 Ne2 Nd5 Ka7 Nb4 Kb7 Rh7 Rh5 Kg7 Bd3 R3e4 f6+ Kg6 f8Q Rf7 Qfa8 Rb5 Rc5 Kh6 Ka7 Re6 Bf5 Kg5 Bg6+ Re5 Nc3 Kf4 Ne2+ Ke3 Nf4 Kd2 Qad5 Re2 Qde4 Re3 Rf5 Re5 Rh5 Re6 Rd5 Re5 Qb5 Nd3 Ka6 Rf5 Qa5+ Nb4+
K2b1r2/rBppp2p/5Bkn/n1rQ1RN1/6P1/1P2P2r/2P3Q1/2B1nQ1B w - - 0 1 illegal: Other
R6r/2Pprn2/1bQR1N2/1K1Q1RRq/2PP2p1/2nB2rb/p1nk2P1/3q2Q1 w - - 0 1 illegal: No proof kernel
3Q1B2/2Qpb1p1/b2P2Kb/3q1pP1/p1n2P1R/P1Qn1BN1/B1rq2B1/1r2k3 w - - 0 6 legal: proof: c4 b5 d4 e6 b3 Ba3 Nc3 Be7 c5 Bf8 Nd5 Nh6 Ne7 Ng8 d5 e5 Nf5 Ba6 Nd4 exd4 Bb2 Bb7 Bc1 Bc8 b4 Qe7 Rb1 Qh4 Rb2 Qg5 Rc2 Qd8 Rc4 bxc4 b5 h5 Qc2 c6 bxc6 Qb6 Qg6 Qc7 Qxh5 Qb6 Qh7 Qd8 Kd2 Ke7 e4 Kf6 f4 a5 g4 c3+ Kd3 a4 h4 c2 h5 Na6 c7 Be7 c6 Nb8 h6 Bb7 c8B Qa5 c7 Na6 Ba3 c1B Ne2 Rb8 Ng3 Bb2 Rh4 Qb4 Bg2 Nc5+ Kc2 Ba6 Bb7 Qb5 c8Q Nd3 Qc7 Ba1 Bc5 Qc6 Ba8 Rb1 a3 Qb5 Kd2 Qa5+ Ke2 Qd2+ Kf3 Bc3 Bb7 Bb4 Bc6 Bd8 Bf8 Ne7 Qg8 Nf5 h7 Bbe7 d6 Ne3 e5+ Ke6 Ke4 Nc4 Ba8 Bg5 Bb7 Bh6 g5 Bf6 Kf3 Be7 Kg4 Na5 Kh5 Nc4 Nh1 Kf5 Bbf3 f6 Qd5 Rg8 Qda5 Rh8 Qc3 Rg8 e6 Rh8 Bf1 Rg8 B3e2 Ke4 h8Q Ke3 Bg2 f5 Ng3 Kf2 Kg6 Ke1 Bef3 Bf6 Be7 Rc8 Bf8 Be7 Qg8 Rcb8 Qh8 R8b2 Qg8 Bd8 e7 Rc2 e8B Be7 Qh8 Nce5+ Kh5 Nb2 Bf7 d3 Q3c5 Qb4 Ba2 d2 Q5c6 Qb7 Qc3 Ned3 Kg6 Nc4 Qg8 Qd5 Qf7 Bd8 Qe8+ Be7 Qf6 d1Q Qed8 Qe2 Qc3+ Qd2
2N2q2/bnR2Pp1/pBn2r1k/1Q2PKbp/2bQ4/rp1QQ1P1/1P5q/3R1R2 w - - 0 1 illegal: No proof kernel
1QN1RRb1/2P3r1/qp1p2RP/4b2p/1r1PpnK1/1P1rQn2/2r4k/BQ2Q3 w - - 0 1 illegal: No possible last move
q1bR1nq1/N1brnk2/6RP/2Q1R2r/N7/KP1rq1NP/2qpP1N1/5N2 w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 h5 axb5 e5 g4 Be7 Bg2 Bd6 Be3 Bf8 gxh5 f5 Bd4 exd4 Bf3 Na6 Bg4 fxg4 Qd2 Nb8 Qd3 Qc7 Qd1 Qd8 Kd2 a5 Kc1 d5 c4 g5 f4 d3 h3 g3 h6 a4 b6 a3 c6 g4 c5 g2 c7 g3 c6 a2 b3 d2+ Kb2 d4 f5 d3 f6 Be6 c8N Bf5 b7 Qb6 c7 Bb4 f7+ Kf8 Na7 Rh7 c8N Ne7 Nc3 Bd6 Nf3 g1R Qc2 d1Q Nd2 g2 Na4 Bc7 Nd6 Bc8 Nf1 d2 Ne4 Qe3 Neg3 Nd7 Qc5 Qc2+ Ka3 Rg7 b8R Rh7 Rc1 a1Q+ Kb4 Qh8 Rb5 Rb8 Ka3 Rb6 Ra1 Rd6 Rc1 Rd3 Ra5 Qd1 Rc4 Qg8 Rd4 Qc2 Rd5 Rg7 Rb5 Qf3 Re5 Rg5 Rb8 Rh5 Rh2 Rh1 Ra8 g1Q Rf2 Qc6 Rf6 Qe3 Rg6 Rg1 Nh1 Rg4 Nhg3 Rgd4 Rb8 Nf6 Ra8 Qe8 Rb8 Nh7 Ra8 Bd7 Rd8 Bc8 Rdd6 Be6 Rdd5 Qa8 Rd6 Nf5 Rd7+ Rd6 Rd8+ Ke7 f8N Kf7 Qb6 R6d4 Qc5 Bc8 Ne6 Rd7 Nf4 Nf8 Ng2 Ne7
5K2/1B2PBPP/1r1q1r2/1bR1n2r/2N2bn1/B2k1Bb1/p1bP3q/1R1B2R1 w - - 0 1 illegal: No proof kernel
1n3K2/4P1r1/N1NPR1n1/1nqrN1NQ/5rNp/3pRnbp/2k1P1RP/8 w - - 0 1 illegal: No possible last move
4R3/r1prpB1R/1n5n/rPK5/Pq1R2b1/2NNPRP1/2nR3p/1Nn4k w - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 b5 b3 a4 g3 g5 fxg5 a3 Bb2 Bg7 Qc1 Be5 g4 Bg3+ hxg3 axb2 a4 Nd7 Qc5 Nb8 Qa3 b4 Bg2 bxa3 Bh3 Ba6 Bf1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 b4 f5 g6 h4 g7 f4 g5 h3 g6 a2 e3 f3 b5 f2 Nf3 Qe8 Ne1 Bg4 Bc4 f1N Nd3 Nh6 g8N Qd8 g7 Ra7 Nf6 Nd7 g8R Nb6 Re8 Qc8 Bb3 Qa6 Bc4 Qa5 Rh2 Qb4 Ne4+ Kd7 Nec3 Kd6 Rf2 h2 Rf7 Rg8 Rh7 Rg6 Rf8 Rg8 Rf5 Rga8 Rf3 Kd7 d6 Ra5 Nd5 Ke6 d7 R8a7 Ndc3+ Kd6 Na3 b1R d8R+ Bd7 Rb8 Rd1 Re8 Bg4 Rb1 a1N Rb2 Qb3 Nab1 Nc2+ Ke4 Qa3 Bf7 Qb3 Nc5 Qb4+ d4 Nd2+ Kd3 Bd7 d5 Ke5 d6 Bg4 d7 Nb3+ Nd2 Rf1 d8R Rh1 Ndb1 Rd1+ Ke2 Rd7 Ra2 Na3 Rd2 Nc2 Nd3+ Kd6 Nf4+ Ke5 Rd4 Kf5 Kd3 Kg5 Ke4 Nc1 Ke5 Be6 Ke4 Kg4 Nd3 Kh3 Ke5 Kg2 Ke4 Nc8 Ke5 Bg4 Ke4 Nd6+ Kd5 Kh1 Kc6 Qb2 Kc5 Nc8 Nf4 Nb6 Rd2 Rd3 Rd4 Qb3 Rc4 Rd7 Rcd4 Qb2 Nd3 Qb4+
1r2R1r1/Rb4p1/P1np1PB1/3Bb3/B2N2Pr/2bP2Bb/B2k1KR1/1n2n1q1 w - - 0 1 illegal: No proof kernel
q5n1/1Bpp1K2/P5Bp/RnPrk3/1q1Nr3/3BnR1P/Br1P1b1R/3b2B1 w - - 1 3 legal: proof: f4 b5 a4 e5 fxe5 g5 b4 a5 c3 Nc6 Qb3 Ba6 Qc4 Bb7 Qf4 gxf4 Na3 Nb8 Nc4 Ba6 Nb2 Bg7 bxa5 Bb7 a6 Bc8 a5 Bf8 Na4 bxa4 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kh5 h6 Kg6 a3 e4 f3 g4 f4 h3 f2 c4 f3 a7 a2 c5 Ba6 g5 Be2 a6 Qc8 Rh2 Bc4 Bd3 f1N Bb2 f2 Ne2 Nc6 Bd4 Rb8 a8B Rh7 Bb7 Bd6 Be3 Na7 Nd4+ Ke7 e6 Nb5 e5 Bb3 Nf3 Rf7 Nd4 Rf4 Kg7 Bd1 g6 Ke8 e7 Re4 Kh7 Qd8 g7 Kf7 e6+ Kf6 e8R Bg3 e7 Ke5 Kg6 Bh4 Kf7 Qc8 Rb1 a1Q Rf8 Qb2 e8B Qb4 Ra1 Qd8 Ra5 Bg3 Bg5 Ne3 Bh4 f1R+ Bf6+ Kf4 Bh4 Be1 Bf2 Qc8 Bg1 Bf2 Kg6+ Ke5 Rf3 Qd8 Kf7 Re1 Bc6 Rb6 Bd5 Qa8 Bb7 Nf6 g8B Re2 Bh7 Ng8 Bf5 Re1 Be6 Rd6 Ba2 Rd5 Kg6 Bb3 Kg7 Rb1 Bg6 Rb2 Kf7 Bd1
3n2n1/4n1Bk/rb2p1nn/pB1RKPP1/3p3r/3b3q/P2P1N2/1R1B1RBB w - - 0 1 legal: proof: e4 f5 exf5 g5 b4 c5 bxc5 Na6 f4 Bg7 f6 Nb8 f5 Bf8 g4 Qa5 Nc3 Qd8 Nce2 h5 Nf4 gxf4 g5 Bh6 Qe2 Bf8 Qg4 hxg4 Ke2 Kf7 Kd3 d5 Kd4 a5 h4 b5 c4 b4 c6 f3 c7 b3 h5 b2 h6 b1N h7 e6 c5 f2 c6 g3 Bd3 f1N Ke5 d4 Nh3 g2 Nf2 g1N Bb5 Ne3 Ba3 Ne2 Bd6 Nf4 Rf1 Nc3 Rab1 Ba6 c8B Ncd5 c7 Nde7 Bcd7 Qc8 Ba4 Bd3 Bdb5 Ra6 Bd1 Qb7 c8B Qf3 Bc7 Qh3 Bb7 Nbc6+ Kd6 Nd8+ Ke5 Nc8 Bh1 Bc5 Bb8 Kf8 f7 Kg7 f8R Nce7 Bd6 Bb6 Re8 Nb7 Rc8 Nd8 Rc5 Ne2 Bb8 Nf4 Rd5 Ng4+ Kd6 N4f6 Ke5 Nh6 Bd6 Re8 h8B+ Kh7 Bg7 Rh8 Bc7 Nfg8 Bb8 Bc4 Ke4 Nfg6 Bh2 Nh4 Kf4 Bd3 Ke5 Nhg6+ Kd6 Ng4 Bge5 Qg3 Bg1 Qh3 Bf4 Kg7 Bfh2 Rh4 Be5+ Kh7 Bf6 N4h6 Bg7 Nh8 Ke5 Nhg6+
r1R3R1/1Kp2n1p/1pRpR1B1/1kN1p1n1/b2PPB2/1P4RB/2q1rrP1/6n1 w - - 0 1 illegal: No extended proof kernel
4nq2/2p1p2B/p1k1b2q/B3p1N1/1n1b2RB/4PpP1/KnPRrPB1/R2B4 w - - 0 1 illegal: No proof kernel
2Bn1rK1/B2p2P1/1Nr1QPbQ/7p/Bq6/1B4p1/1pbPpNPq/B5k1 w - - 0 2 legal: proof: h4 g5 b4 a5 c3 b5 Qb3 g4 Rh2 Na6 Rh1 Nc5 Qd1 Ne4 Rh2 Bg7 bxa5 b4 Rh3 b3 Rh1 Be5 Rh2 Bd6 Rh1 Bb4 cxb4 Ra7 Rh3 Ra6 Rh1 Ra8 a4 e5 f4 Qg5 f5 Qe7 Ra2 Bb7 Rc2 Qd8 Rc4 Ng5 hxg5 Bc8 Rf4 f6 e4 Rb8 Rh3 Ra8 Re3 exf4 e5 Nh6 e6 Ng8 Re5 fxe5 Ke2 Ke7 Kd3 Kd6 Ke4 c5 b5 g3 f6 f3 Kf5 Kd5 e7 Kd4 e8Q f2 g6 h6 a6 c4 a7 e4 g7 e3 Kg6 c3 Kf7 c2 b6 Ne7 b7 Qa5 b8B Ba6 Nh3 Bd3 Na3 Qb4 a5 Nc6 Qe6 Rc8 a6 Nd8+ Kg8 Bg6 Bb5 f1B Ba4 Bfd3 Nf2 Rc6 Nc4 h5 Nb6 Bdf5 Qg1 Bd3 Ba3 c1Q Qe1 Bc2 Bb2+ Qc3 Qe2 Qh1 Ba1 b2 Qf3 Qb4 Qf4+ Bge4 Qh6 Qh2 Bc7 Rc8 a8B Bg6 a7 Rb8 Bb7 Rc8 Nh1 Kd3 a8B Ke2 Nf2 Kf1 Bb8 e2 Ba7 Kg1 Bb3 Rc4 Bc6 Re4 Bb5 Rc6 B5a4 Re5 Bb7 Re3 Qf7 Re7 Qe6 Rf7 Bc8 Rf8+
4k3/P5p1/qBq1pKNP/3bP1QB/r1Q2pP1/1N1N1r2/bb1nq3/3nN2N w - - 0 1 illegal: Other
4n3/1q1B1N2/1BN1rP1Q/n1B5/r3nNBp/pP2Pr2/1P1k1r2/1K3bQ1 w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 Bg7 c3 Be5 Rh2 b5 Rh6 b4 c4 d5 cxd5 c4 Rh4 b3 axb3 Bd6 Rh1 Bc5 dxc5 e5 g4 Ba6 Nh3 Bc8 Kd2 f6 e3 f5 Bd3 f4 Re1 f3 Re2 fxe2 Ra6 Kf8 Rf6+ Ke7 Rf4 Ke8 Rd4 exd4 Kc2 Kf7 f4 e1R c6 h5 g6+ Kf6 d6 a5 g7 h4 c7 a4 f5 Ke5 g5 c3 g6 a3 d7 Re2+ Nd2 Ba6 c8B Nf6 g8Q Qc7 d8B Ne8 f6 Qb7 g7 Nc6 Bb6 Na5 Bg4 Rf2 Bb5 d3+ Kb1 Rf3 Ne4 d2 Bbd7 Bf1 Qe2 d1N Neg5 Nf2 Nf4 Ne4 Bd2 Ra6 Bc5 Re6 Qf8 Rh5 g8N Rh7 Qf2 c2+ Ka2 c1R Qg1 Rc4 Qh6 Ra4 Ne7 Rg7 Bb6 Rg6 Bb4 Rg7 B4c5 Rg6 Ngh3 Rg5 Kb1 Rf5 Ng5 Rf2 Nh5 R5f3 Nf4 Ng3 Nf7+ Ke4 Nh3 Kd3 Nf4+ Kd2 Nc6 Ne4
2B3QN/2Q3b1/4Nnq1/1b2br2/r4Pnk/q2P2qN/NPP1Q3/2BK2bq w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 h5 exf5 c5 g4 c4 gxh5 c3 d3 Qb6 Ra4 Qa5 Re4 Qd8 Re2 Rh6 Rd2 cxd2+ Ke2 Rh8 h4 d5 Rh3 Bd7 Re3 Bc8 Re4 dxe4 f4 Kf7 h6 e5 b6 g5 h5 a5 f6 a4 b7 a3 h7 g4 h6 Kg6 f7 Kh5 Nh3 a2 Ng5 a1Q Nh3 g3 Nf2 e3 Nc3 g2 Na2 g1B Bg2 e4 Bf3+ Kh4 Nh3 Qb6 Bh1 Nd7 b8Q Qg6 Bf3 Ne5 Nb4 Bd7 Bh5 Qa3 Bg4 Bg7 f8Q Ra4 Be6 Ng4 Ba2 N8f6 Qc7 Bb5 Be6 Rg8 Qe8 Rf8 h8N Rf7 h7 Rf8 Na2 Rf7 Kf1 e2+ Kg2 e1Q Qg8 e3 Kf3 Rf8 Bc8 Qg3+ Ke2 Rf7 Qe1 Rf8 Nf7 d1Q+ Kf1 Qf3+ Qf2 e2+ Ke1 Qa8 h8N Qh1 Nfg5 Rf7 Kd2 e1B+ Kd1 Bc3 Ne6 Be5 Qh2 Nd5 Qf2 Rf5 Qe2 Ndf6
R5rN/1Qr4n/2q1q2P/1RQRnp2/Nb4b1/r5PP/2R1Q1Pn/qk1K4 w - - 0 1 illegal: Other
3r2n1/r1p3P1/Q1b1P1kq/b1BBQ3/Rb1q1R2/2n5/3BP1PB/Kr2nQ2 w - - 0 1 illegal: Other
k3rr1B/BpQ2P2/3bP2P/2B1R3/2Rbb2K/b6B/3rb1Pq/nQ1Rn3 w - - 0 1 illegal: No proof kernel
5b2/bpBpkP2/1N4PQ/2bnPQ2/2N2b1N/1rPKnb2/3rB3/2N2q1B w - - 0 1 illegal: No proof kernel forced: wxLB
3r2nB/bRbkn3/1Rb5/n1P1P1Qp/1Qq3PB/RBbpP3/B7/5r1K w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 fxe5 c5 axb5 h4 d4 Qb6 dxc5 Qd8 Nh3 g6 Nf4 Bh6 Nh5 Ke7 Nc3 Ke8 Ne4 Qb6 Neg3 hxg3 h4 Qd8 Nf4 Ba6 h5 Bf8 h6 Bc8 Nh5 gxh5 c4 f5 b4 a5 b6 d5 h7 a4 b5 d4 c6 d3 c7 g2 Kf2 g1B+ Kg2 f4 b7 a3 b6 a2 Qd2 Bd7 c8B Nc6 b8Q Bd6 b7 Ba7 c5 f3+ Kg1 Qa5 Bg2 Qa6 Qg5 Nce7 e3 Qa4 Bd2 Qc4 Be1 Bc7 Bh4 f2+ Kh2 Bb5 Rhb1 f1N+ Kh1 Nd2 Bd5 Bc6 Rb6 Nb3 Bf5+ Nc8 Bfe4 Na5 Bf7+ Kd7 Bed5 Nf6 Bg8 Ne7 Bf7 Rf8 h8B Ne4 Bg8 Rf3 Bgf7 Nf6 Bg8 Qd4 Bb3 Qb4 Rc1 a1B Rc3 Qe4 Ba2 Bb2 Ra3 Bc3 Bgb3 Qd4 Qbg8 Qd5 b8R Qc4 R8b7 Rd8 Qh7 Ng8 Qe4 Qe6 Qa4 Qc4 Qb4 Rf1+
1r6/nP1p3b/4QB1r/1B3n2/pP1PqRrR/Q1Pn4/RB2r1b1/Bk3K2 w - - 0 1 legal: proof: b4 b5 f4 c5 e4 h5 g4 e6 g5 c4 Nh3 f6 Nf2 f5 exf5 Bc5 Ng4 Be7 a3 Bf6 gxf6 hxg4 Nc3 Rh6 Na4 Rh8 Nc5 Kf7 a4 Kf8 axb5 Ke8 Nb3 cxb3 h4 Kf7 d4 g5 b6 a5 c3 a4 h5 e5 h6 b2 h7 b1B Be2 g3 O-O g4 Qd3 g2 Qh3 e4 Rf2 e3 Bb5 e2 Ra2 e1N Bb2 Bb7 Ba1 Qe8 Qh1 Bf3 b7 Nh6 Rfe2 Bd5 Re4 Nc6 Kf2 g1R Qg2 Rf8 h8B Rh1 Qh3 Rh2+ Kf1 g3 Qg2 Qe6 Qb2 Ra6 Qa3 Re2 Bg7 Na7 Bh8 Ke8 f7+ Ke7 f6+ Kd6 f5 Rb8 f8R Nd3 Rh4 Qe4 f7 Bc6 f6 Kd5 Bg7 Nf5 Bh6 Bc2 Bc1 Rb6 Bcb2 Ra6 Rg8 Rb6 f8Q g2+ Kg1 Ra6 f7 Rb6 Qe8 Ra6 Kh2 g1R+ Rg2 Rb6 Rf2 Rg4 f8B Qe5+ Kh3 Ne3 Ba6 Ne1 Rf5 Ke4 Bb5 Bd5 Qe7 Rh6 Bc6 Kd3 Bb5+ Kd2 Rf3 Bh7 Rf4 Kc2 Qe6 Nf5 Bg7 Nd3 Bh8 Kb1 Bf6 Nf2+ Kh2 Bg2 Kg1 Qe4 Be5 Nd3 Bf6 Bf3+ Kf1 Bg2+
1B3r2/n3NP1b/2Q3r1/pn2p3/PP2P1qk/nQ4r1/1N1BqK1B/2N2Br1 w - - 1 2 legal: proof: c4 h5 a4 b5 cxb5 c5 e4 c4 d4 c3 g4 c2 b4 e6 h4 Bc5 dxc5 f5 Rh3 f4 Re3 fxe3 Ra2 Nc6 f4 Nb8 Ba3 c1Q Rg2 Qc4 Bc1 Qd5 Rg3 Qf5 gxf5 Nf6 Rg2 Ng8 Rg4 hxg4 b6 Ke7 h5 Kf6 b7 d5 c6 a5 h6 g5 c7 e5 h7 e2 Qd2 g3 Nc3 d4 Qc2 g2 Bb2 g4 Qc1 g3 Nf3 g1R Ba3 d3 Nd2 g2 Kf2 e1N Nb3 d2 Nd1 Nc6 b8B Nc2 Nb2 d1Q Qe3 Q8d3 Nc1 Be6 c8N Qg4 Ne7 Na7 Qc5 Nh6 Qc6 Rg8 h8Q+ Rg7 Qh7 Nf7 Qh3 Nd6 Qe3 Kf7 f6 Rg6 f5 Ndb5 Qg3 Qc4 Qb3 Bd7 Bd6 Rf8 Bb8 Ke8 f7+ Kd8 f6 Bf5 Nd1 Qd3 Bb2 Nca3 Bd4 Qc4 Qa8 Kd7 Nb2 Ke6 Bb6 Rgg8 Be3 Bh7 Bf4 Rg6 Bh2 Rh1 Ke1 g1R Kf2 Rg3 Qb7 Rhg1 Qa8 Rfg8 f8B Rh8 f7 Kf6 Bh6 Rf8 Bd2 Qd3 Bc3 Kg5 Qc6 Kh4 Bd2 Qde2+
3Nk3/P2rpn2/p1b2qP1/P1N1Q3/3Q2NR/r1q1RQp1/Q1n1b1bP/1K6 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a6 e4 g6 exf5 Bh6 b5 Bg5 Nc3 Be3 Nb1 Ba7 b6 Qd7 Bd3 Qd6 Bf1 Qd8 bxa7 h6 g4 Nd7 f4 Nb8 f6 g5 f5 Qd6 Ba3 Qd7 Bd6 Qd8 Bf4 gxf4 g5 h5 Be2 Kd7 Bf3 Ke8 Bg4 hxg4 d4 c5 Kd2 b5 Kc2 f3 a4 g3 d6 c4 f7+ Kd7 f8Q c3 f6 f2 d5 f1B a5 b4 g6 Qb6 f7 Bb7 Qd2 Bh3 Qg7 Nh6 f8Q Nc6 Qf3 Rhd8 Ra4 Rab8 Qe5 Bg2 Nh3 Ke8 Re1 Nf7 Nf2 b3+ Kc1 c2 Nc3 Ba8 Re3 Nd4 Nce4 Rbc8 Kb2 Rc3 Nc5 Rd3 Ka1 b2+ Ka2 c1Q d7+ Kf8 d6 b1B+ Ka1 Ra3+ Qa2 Qc4 Rb4 Bd3 Kb2 Nc2 Kb1 Qc6 Ra4 Qc3 Rh4 Be2 Ng4 Re8 d8Q Bb7 d7 Qf6 Na4 Bc6 Qb6 Rb8 d8N Rb7 Qb4 Rc7 Qbd4 Rd7 Nc5 Ke8
N2N3q/n3P2Q/3pp1Q1/bRK2q2/r4nR1/3P1r1Q/1NPpPn1Q/2k4q w - - 1 2 illegal: No possible last move
1N1B3r/Q3p1N1/qr1b1p2/2p4r/2P2N1Q/PkP1QQ2/1Pn1Kr1q/5B1n w - - 0 1 illegal: No possible last move, all moves rejected
1Q2b1K1/2R5/1p2Pp2/np1kNPqN/1PN4N/b3n3/Q1rP2pR/1Rn3b1 w - - 0 2 legal: proof: g4 e5 b3 d5 g5 h5 g6 d4 Bh3 f6 Bb2 d3 Bg4 hxg4 Bd4 e4 Bb6 axb6 cxd3 Be6 dxe4 Ke7 e5 Bc8 e6 Ra5 Na3 Rd5 Nb1 Rd7 Qc1 Ke8 Qd1 Rf7 gxf7+ Ke7 a4 Kd6 f4 c5 Kf2 g5 Ke3 b5 Ke4 g3 Kf5 g2 Kg6 b6 h4 c4 e4 g4 e7 g3 e8N+ Kc5 h5 c3 e5 c2 h6 c1N h7 Na2 a5 Qe7 b4+ Kc6 f5 Nc1 e6 Qc5 a6 Nd3 a7 Qe5 a8R Bd7 Na3 Nh6 Qc2+ Qc5 Rh2 Kd5 Nc4 Bd6 Kg7 Qe3 f8N Qg5+ Ng6 Nc1 Nf3 g1B Nh4 g2 Qa2 Ng4 Ra7 Ne3 Rb1 Nc6 Rc7 Na5 Kf7 Bf4 Ng7 Rc8 h8Q Be5 Nh5 Bb2 Nge5 Ba3 Qf8 Qh6 Kg8 Be8 Rg7 Qg5 Qd6+ Ke4 Qb8 Rc5 Nb2 Rc2 Nbc4 Qf4 Re7 Kd5 Rc7 Qg5+
2BQR3/B2K3r/2Qbbp1k/P3B1pq/1p1bPP2/Pr1R1nRp/7B/5q2 w - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 a5 bxa5 Nc6 c4 b4 Bb2 Na7 Bc1 Nb5 cxb5 Ra6 Nh3 Ra7 Ng1 Ra8 h4 g5 h5 Qf6 Nd2 Qe7 Ndf3 Qd8 Nh4 gxh4 g4 h6 g5 Bc5 g6 Be7 Nh3 Bf8 Ng5 hxg5 Kd2 c5 Ke3 d5 a3 c4 Kd4 c3 e4 c2 b6 h3 g7 Bf5 h6 Bg6 b7 Bd6 b8B Nf6 h7 Ng4 e6 Ne5 Bf4 c1B Ba7 Rc8 e7 Rc3 Rg1 Rb3 Qc2 Bb2+ Qc3 Qd7 Rd1 Qg4 Bh2 Qh5 f4 Ba1 Rg3 Nf3+ Kd3 d4 Kc4 d3 Kd5 d2 Kc6 Bb2 Ba6 Ba1 Qc4 Bb2 Bc8 Bd4 Re1 d1Q Re3 Qf1 Rd3 Rg8 h8B Rf8 g8Q f6 Bg7 Bf7 Qh8 Rg8 Bf8 Rg7 Qb5 Bc4 Qb7 Kf7 Kd7 Kg6 Qc6 Bf7 e8R Rh7 Be7 B6c5 Bd6 Kh6 Be5 Bd6 Qf8+ Rg7 Qe7 Rh7 Qd8 Be6+
K2r2N1/1ppQb3/2P2P2/prPqb2p/4rQN1/1b1RR2P/1R2N1rR/4k3 w - - 0 1 illegal: No possible last move, all moves rejected
q4qr1/R2Q4/n2pB1bQ/2rP4/2RQp3/P1KrnQb1/4P1P1/1k1bBqR1 w - - 0 1 illegal: Other
3kbq1n/PRr4n/2r1R3/r2bp1bR/pNNpQ3/2K1PPqQ/P1N5/7N w - - 0 1 illegal: No possible last move, all moves rejected
4b2N/4R2Q/q4NPn/1Qpr1Pq1/1N1bR3/r1P4p/n2p2kP/RKRnn3 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f6 axb5 Be7 e4 Bc5 e6 Bf8 e7 Kf7 e5 Ke6 Be2 g5 Bf3 g4 Bf4 Kf5 e6 Kg6 Be5 fxe5 Be4+ Kg5 f4+ Kf6 Bf3 gxf3 Kd2 Kf5 Kc1 Kg4 e8R a5 b4 d5 c3 c5 g3 h5 b6 h4 b7 e4 f5 h3 b5 a4 b6 e3 e7 e2 Qf1 e1N Qf2 a3 Ne2 a2 Qe3 d4 Nf4 f2 Nd2 f1N Ng6 d3 Ne4 Bg7 Qh6 Kf3 g4 Ra3 g5 Na6 b8N Kg2 b7 Bd7 Nf6 Ne3 Qh7 Nh6 Nc6 Nb4 b8Q Nd1 Qb5 Rf8 Nh8 Rg8 Ng4 Bd4 g6 Rf8 Rf1 Rf6 Rh1 Rd6 Nf6 Rd5 Rf1 Nbc2 Nb4 Bc6 Rb1 a1Q Rh1 Qa2 Ra1 Qc4 Kb1 d2 Rg8 Be8 Rg7 Qe2 Rf1 Qe6 Rf7 Qa6 Rg7 Bc6 e8R Bd7 Re4 Be8 Nd7 Qg5 Nf6 Nf2 Rge7 Nd1 Nd3 Nb4 Rh1 Na2 Nb4 Nf3 Rf1 Nb2 Rd1 Ne1 Rc1 Nd1
N4R2/2K2brR/2Pb2bn/pb2R1Q1/P1R1q2P/rP2r3/kNbN4/4N2n w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 d4 c5 dxc5 Bg7 c4 Bf8 cxb5 h6 Bf4 gxf4 g5 h5 Bh3 Qf6 Bf5 Qd8 Bg4 hxg4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd4 d5 e4 g3 h4 g2 c6 f3 g6 f2 g7 f1B b6 f4 b7 f3 Qd2 f2 Qg5 Qe7 Nd2 Bc4 Rc1 f1B Ngf3 g1R Ne1 Nd7 b8R Nh6 g8R Nf6 Rg7 Nh5 Rh7 Ng3 a3 Bb5 Rc4 Bd3 Rh3 Nh1 Re3 Rg8 a4 a5 Re2 Rg7 Re3 Qb4 b3 Bd6 Re2 Bd7 Rg8 Be8 Rf8 Bf7 Re3 Re8 Re2 Rf1 Re3 Rf6 Re2 Ke7 e6 Bc2 e5 Bcg6 Qg4 Rf2 Re4 Kd8 e7+ Kc7 e6 Kb6 Re5 Rh2 Qg5 Rg2 Ke3 d4+ Kf3 d3 Kf4 Nf5 Ke4 Nh6+ Kd5 Rh2 Ndf3 Ra2 Nd2 Ra8 e8N Ra3 Nc7 Re8 Nf1 d2 Na8+ Ka6 Rce4 d1B Nd2 Bc2 Rd4 Bh5 Rc4 Bfg6 e7 Ka7 Rc3 Qe4+ Ke6 Bf7+ Kd7 Bhg6 Rc4 Rc8 Nc7 Kb6 e8N Rb8 Ne6 Rc8 N8c7 Re8 Nf4 Re6 Nfd3 Re8 Rf5 Re5 Nb2 Re6 Rb4 Re5 Na8+ Kc5 Nbc4 Kd4 Nb2+ Kc3 Kd8 Qd5 Rd4 Re3 Re5 Qe4 Rd3+ Kb4 Rc3 Ra1 Rc4+ Ka3 Kc8 Ka2 Nf1 Kb1 Kd7 Ra3 Nd2+ Ka2 Kd8 Be7+ Kc7 Bd6+
b1nN4/2r5/p1qRN2R/k4q1p/q3r1NP/3RP1N1/PPr5/bQRrK3 w - - 1 2 illegal: Other
7N/2p1b2n/RpBp3p/pPP2p2/PN5k/q2Np1nP/KNr1R3/R5bR w - - 0 4 legal: proof: e4 a5 f4 f5 d4 Na6 Qe2 Nb8 d5 Ra6 e5 Re6 dxe6 b6 Qg4 Bb7 Qe2 Bf3 gxf3 Na6 Be3 Nb8 Bd2 Nf6 Bc1 Ng8 Kd1 g6 Kd2 Bh6 Qe4 fxe4 Ke2 Bg5 f5 Bd2 f6 Bb4 f7+ Kf8 Kd1 Kg7 Nd2 Kh6 Ne2 Kg5 Nc3 Kf4 Ne2+ Ke3 Ng1 Kd4 Nb1 Kd5 Bh6 Kc5 Bc1 Kc6 f8N Na6 f4 Bd6 f5 Nb8 f6 Kb7 f7 Kc8 Bg5 Bc5 Be2 Bd6 Bf6 exf6 Kd2 Qe8 Bc4 Kd8 Ke1 Ke7 Bf1 Qd8 Kd2 g5 Kc3 f5 Kb3 g4 c4 h6 a4 g3 h3 g2 c5 Nc6 Bb5 Qc8 Ng6+ Kd8 Ka2 Bf8 b4 d6 e7+ Kd7 e8N Ke6 Na3 Nge7 Ne2 g1B Nf6 Ng8 Nd5 Be7 f8R Nd4 Bc6 Nf6 b5 Rg8 Nc4 Nh7 Nh8 Rg2 Nb2 Qb8 Nc1 Rc2 Nb4 Ne2 Re8 Ng3 Ncd3 Qb7 Ra8 Qb8 Ng6 Qh8 Ra6 Kf7 e6+ Kf6 Nh4 Kg5 Ng6 Qc3 Nh8 Bf6 e7 Kh4 e8R Be7 Rg8 e3 Rg5 Nh5 Rg2 Ng3 Re2 Qa3+
1q4Q1/q6P/RP1bP1n1/p3n1r1/1B1PbNP1/7B/2RqKn2/Nr3N1k w - - 0 1 legal: proof: c4 c5 f4 h5 a4 g5 b4 gxf4 bxc5 d5 cxd5 b5 axb5 e5 Ra6 h4 Rh6 h3 Qb3 e4 Qf3 exf3 Rxh3 Qc7 Rh7 Qd8 d4 Kd7 g4 a5 e4 f2+ Kd1 f3 h4 Nc6 h5 Nge7 d6 Ke6 b6 f5 e5 Kd5 e6 Ke4 d7 f4 h6 Ne5 c6 N7g6 c7 Bd6 Kd2 Bb7 Rg7 Qb8 Bg2 f1Q c8Q Qa6 d8N Qaa7 Bh3 f2 Ba3 f1N+ Ke2 Ne3 Rh2 Nd1 Bb4 Nf2 Nc6 Rg8 h7 f3+ Kd2 Rf8 Ne2 Rf5 Ke1 Rg5 Nd2+ Ke3 Nf1+ Ke4 Nc1 Kf4 Ne7 Be4 Ne3 Kg3 Qg8 Qbb7 Rf7 Rf8 Nb3 Qbb8 N7d5 Rc8 Na1 Rc1+ Kd2 Rb1 Nf4 Bc5 Rh1 Bd6 Rc1 Kh2 Rc2 Kh1 Rg7 Nfd3 Nf1 f2 Nh2 f1Q Rb7 Qg1 Nf1 Qg3 Ke2 Nf2 Re7 Qc3 Re8 Qbb7 Ra8 Qab8 Ra6 Q7a7 Rb2 Qc1 Rc2 Qd2+
1Q1R4/6N1/P2q1p2/2R4P/B1P1NP1q/KpP1R1n1/B1b2b1q/1br3rk w - - 0 1 legal: proof: g4 d5 b4 h5 gxh5 c5 bxc5 a5 d3 e5 Ba3 Nd7 Bb4 axb4 e3 Nb6 Bg2 Nc4 dxc4 d4 exd4 exd4 Bh3 Ra7 Bf1 Ra8 Kd2 Ke7 Kc1 Ke6 Kb2 Kf5 a4 Ke4 f4 b5 h4 g5 h6 d3 h7 g4 c3 g3 a5 g2 c6 b3 a6 b4 c7 d2 Nf3 g1Q Ra4 Bc5 Rh3 Qh2 Ra5 Nh6 Nd4 Bf5 Ne6 Bf2 c8B f6 Rf3 Qd6 Bd7 Rag8 Ba4 Rg1 Ng7 Rd8 Qc1 d1Q h8R Qe1 h5 Bg6 Rb5 Nf5 Rc5 Ng3 Be2 Rd7 Rd8 Re7 Bd1 Bh7 Ka1 b2+ Ka2 Re8 Bdb3 Re5 Na3 b1B+ Kb2 Rd5 Ba2 Rd1 Nb5 b3 Ka3 Bg6 Qd2 Rc1 Qd1 Bh7 Rd3 Bc2 Qg4 Bg6 Qc8 Bf5 Qb8 Bh7 Rd5 Kf3 Re5 Kg2 Re2 Kh1 Re3 Qe5 Nd6 Bhg6 Nf7 Qd6 Ng5 Bgd3 Ne4 Bb1 Bb5 Bdc2 Bc6 Qed1 Bd7 Qg4 Ba4 Qgh4
4Q1b1/2BbqN2/4qB2/1RNP3P/4Pqbr/rn1K2PR/rP4k1/1qB1n3 w - - 0 1 legal: proof: c4 e5 d4 b5 a4 h5 axb5 d5 cxd5 e4 g4 hxg4 e3 Be6 Bd2 Bd7 Bc1 Bc8 Kd2 g3 Bc4 g2 Bd3 exd3 Ne2 g1R Ng3 g5 Qf3 g4 Ne2 g3 Qg4 g2 Qh5 Bd6 Qg4 Bg3 fxg3 Qg5 Qf3 Qf6 Qf1 Qh4 Qd1 Qd8 h4 Kd7 b6 Kd6 b7 c5 Ra4 a5 Ra3 f5 Rh3 f4 Rc3 a4 Rc4 a3 Rh2 a2 Rh1 a1Q Rh2 f3 Rh3 f2 Qe1 f1B Qd1 Nc6 Rh2 Qa6 Kc3 d2 Nf4 Nh6 Ne2 Qe7 Ra4 c4 Ra2 Bd7 Rh1 Nb4 Na3 Nc2 Nb1 Nf5 Qe1 d1B Nf4 Bg4 Ne6 Qc6 Nd2 Ra3+ Nb3 Rha8 Rh3 Rh1 h5 g1Q Qd2 Qf2 Qd3 Qf4 Qe2 Rh2 Kd2 c3+ Kd3 Rh1 Ra1 Ra2 Nbc5 R8a3 Nd8 Qc8 Rh2 Bfh3 Qe1 Be6 Qe2 Bg8 Qe1 Qce6 Nf7+ Kc7 d6+ Kc6 b8B Kd5 Rf2 Rh2 d7 Rh1 d8B Rh2 Rf3 Rh1 Bbc7 Rh2 Na4 Rh1 Ke2 Ke4 d5 Nfd4+ Kf2 Qh4 Bf6 Nb3 Ke2 Qhg5 Rb1 Qge5 Ra1 Qe7 Rb1 Bd7 Ra1 Bhg4 Rb1 Rh4 Nc5+ Kf5 Kd3 Q5e6 Ng5 Ncd4 Nf7 c2 Bd2 c1Q Qe2 Qe1 Bc1 Qg1 Ra1 Qf1 Rf2 Qg1 Rh2 Nc2 Rh3 Qh1 Bd2 Qb1 Bc1 Bf3 e4+ Kg4 Qf2 Bd1 Qd4 Kf3 Qa4 Kg2 Qc6 Ra7 Qa8 Bg4 Qe8 R2a5 Ra4 R7a6 Rb4 Ra2 Rb6 R6a3 Rb5 Ne1+
4bbb1/5bP1/1B2N1R1/4PBn1/1qPP4/kB1nqrPK/q2N2Rb/1Q5b w - - 0 1 legal: proof: h4 a5 b4 axb4 f4 e5 c3 g5 hxg5 exf4 d3 c5 Rh3 d5 Rh1 d4 cxd4 Ke7 Bb2 Kd7 Bc1 Ke8 Kf2 b5 Qa4 c4 Ke1 c3 Qd1 Ra7 Qc2 Rc7 Qd1 Rc4 dxc4 Qc7 Ba3 Qd6 Bc1 Qd8 Kf2 Kd7 e4 Kc6 a4 f5 e5 h5 g6 h4 g7 b3 a5 b4 a6 b2 a7 h3 a8B+ Kb6 Qd2 h2 Be4 c2 Bc6 b3 Bd3 f3 Kg3 f2 Ra5 f1B Rc5 f4+ Kf2 f3 Kg3 f2 Ra5 Nd7 Ba8 Nc5 Be2 Nd3 Ra2 Nf6 Qd1 Nh7 Bb7 Qg5+ Bg4 Be2 Ra8 f1Q Nc3 b1B Be4 b2 Be3 c1B Nb5 Be6 Bf2 Qe1 Qc2 Bf4+ Kh3 Qb4 Be1 Bg8 Bgf5 Bh5 Ra2 Be8 Nc7 Bg3 Ne6 Qe3 Nf3 Ng5+ Kg4 Bef7 Rg1 h1B Nd2 Bh2 g3 Rh6 Rg2 Rf6 Bf3 Be8 Bd1 Bgf7 Qb3 Bc2 Ra7 b1Q Qa2 Q1b2 Qb1 Qa2 Rd7 Ka5 Rd6 Ka4 Kh4 Ne4 Kh3 Ka3 Rc6 Bg8 Rb6 Bca4 Bb3 Bef7 Nf3 Qd6 Ba5 Qb4 Nd2 Bae8 Rd6 Bh5 Bb6 Bhf7 Bg4 Rf3 Bf5 Nec5 Ng5 Ne4 Rg6 Qe1 Ne6 Ng5+ Kg4 Qe3 Kh4 Ne4 Kh3 Ng5+
R1BNQ3/P1q4N/1bpP2rr/k6n/N1rqnb2/3P1PrP/BK4R1/6b1 w - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 a5 Bb2 e4 Bf6 axb4 Bg5 h6 f3 hxg5 fxe4 f5 e5 f4 Qb3 f3 Kd1 f2 Kc1 Bg4 Qd1 Bf3 gxf3 Be7 Bg2 Bc5 Bf1 Bf8 e4 Kd7 a4 b5 d3 b3 a5 c6 e6+ Kc7 a6 Kb6 h3 g4 d6 g5 e7 b2+ Kc2 g3 e8N g2 e5 b4 a7 g4 e6 g3 e7 b3+ Kc3 Nd7 Qc1 Ndf6 Ne2 g1B Qc2 g2 Ra2 Bh6 Nd4 Qc7 Qe2 Nh5 Nf6 Bf4 e8B Rh6 Nh7 Ngf6 Bd7 Rg8 Ne6 Rg3 Nd8 Rgg6 Bc8 Ne4+ Kd4 Rg3 Nc3 b1Q Na4+ Ka5 Kc4 b2 Kb3 Qa1 Kc2 Ng5 Qe8 b1R Be2 f1R Bd1 Bb6 Rg1 Rc1+ Kb3 Ne4 Bc2 Qe7 Bb1 Qd4 Rf2 Rc3+ Kb2 Qc7 Ba2 Rfc1 Re1 g1B Rg2 Rc5+ Kb3 R1c3+ Kb2 Rcg5 Rb1 Rgg6 Re1 Nef6 Re7 Ne4 Rf7 Qb8 Rb7 Qc7 Rb8 Nd2 Ra8 Ne4 Ka1 Rc2+ Kb1 Rc3 Kb2 Rc4+
RN5b/2Q1B2k/2P1P2r/2b1nR2/4p1q1/2bb1BPN/PpP1Br2/rb2K3 w - - 0 1 illegal: No proof kernel
q6Q/1b3Bn1/3R1pN1/1P2P1br/1Kp1q3/P3qkn1/q2PRBRP/q2N4 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 Bh3 hxg4 Bg2 Nd7 Bf1 Nb8 a4 b5 axb5 a5 Bg2 Rh5 Bf1 Rh8 Nc3 a4 Nb1 a3 Qb3 a2 Qd1 Ra3 bxa3 Be7 Qa4 Bb4 Qd1 Bf8 e4 Ke7 e5 g5 d6+ Ke6 d7 Kf5 Nc3 c5 Qb3 c4 Na4 Ke4 Qb4 f6 Qe7 g3 Nh3 g2 Qe6 g1Q Qb6 g4 Nb2 g3 Qf2 g2 Qd4+ Kf3 Qa7 Bb7 Nd1 Rh5 Qa8 Nh6 Bb2 Nf5 Bd4 Na6 Bf2 Nc7 Rb1 Qe8 d8R a1Q Rd6 Bh6 Qb8 Qg6 Qh8 Qa2 Rc1 Ne6 Rc3+ Kg4 Re3 f3 Nf4 Ng3 Re2 Qe4 Ng6 Bg5 Nb2 Bd5 Kd1 Ng7 Kc1 Bb7 Kd1 Qd5 Kc2 Qg8 Kc3 Qa8 Bd4 f2 Kb4 Kf3 Nd1 Bf4 Re4 Be3 Bd3 Qe1 Rg1 Bg5 Re2 f1Q Bf5 Qff2 Be6 Qe3 Bf7 Qe4 Bf2 Qf1 Re1 Qfd3 Re2 Qde3 Rf1 g1Q Rfe1 Qg2 Rg1 Qf1 Rg2 Qh1 Nc3 Qc1 Nd1 Qca1
1N2n2q/1RBR2Pr/PbN4q/2p1R1PQ/2pr4/n2P4/r1k1K1nP/5r1B w - - 0 1 legal: proof: c4 d5 d4 dxc4 b4 a5 f4 axb4 Qd3 g5 Qxh7 Bf5 fxg5 Bd3 exd3 Ra7 Nc3 Ra4 Nb1 Ra8 a4 Kd7 g4 Kd6 d5 Ke5 d6 Kd4 d7 f5 a5 e5 g6 b5 g7 b3 g5 b2 Bd2 e4 Ra4 f4 Qh4 f3 Qh7 f2+ Kd1 e3 Bc1 e2+ Kd2 e1N Na3 b1R Qf5 Ng2 Qg6 Na6 Qf7 Rb4 Kd1 Kc3 Bf4 Nf6 Ke2 Ne8 Qh5 Bc5 Nc2 Rh7 Nd4 Bb6 Nc6 Kc2 Nb8 c6 Nf3 Nac7 Rg1 Qf6 d8R Qh6 Ra1 Ra4 Re1 c5 a6 b4 Rd6 b3 Bg3 b2 Ne5 b1Q Nec6 Nb5 Rd7 Ra2 Bc7 Na3 Rh1 Qb2 Rg1 Qd4 Rb1 Qh4 Rb4 Ne1 Bg2 f1R Bh1 Ra7 Rg3 Ng2 Re3 Rb7 Re5 Qh3 Bd8 Rc7 Rb1 Rc8 Bc7 Rd8 Rf7 Rd4 Rd7 Qf5 Rb5 Qf8 Rb4 Qh8 Rb5 Ba5 Rb7 Bb6
q5Br/1k1ppPPK/2Rrr2Q/1P1N2R1/4B1Pq/5P2/2nb2q1/Nq1nN3 w - - 0 1 illegal: No possible last move
1N2rr1R/B4q2/ppr3b1/N4rPn/P1q2P2/2r1BRPP/Q2r3K/2k2N2 w - - 0 1 legal: proof: c4 d5 b4 dxc4 b5 e6 Qa4 a6 Qc2 Qf6 Qd1 Qd8 Qa4 Bc5 Qd1 Ba7 b6 Qe7 Ba3 Qh4 Bc1 Qd8 bxa7 g5 f4 Nh6 fxg5 Ng8 g3 h5 Nf3 f5 Bg2 h4 Kf2 h3 Ng1 hxg2 Nh3 f4 Ng1 Nd7 Ke1 Ne5 e3 f3 Ba3 Ng6 Bc1 Nf4 exf4 Rh4 Qb3 Rh3 Qd1 Rh8 Kf2 Ke7 d4 Kd6 a4 Kd5 h3 Ke4 d5 c5 d6 e5 d7 b6 Qf1 c3 Ba3 c2 Rh2 c1R Qd1 c4 Ne2 g1R Nd2+ Kd3 Be7 c3 Qb3 e4 Qa2 c2 Bc5 Qe8 d8B Bf5 Nc4 Nf6 Nd4 Nh5 Nc6 Rf8 Be3 Qf7 Bc7 Rgd1 N4a5 Rae8 a8N Bg6 Bb8 Re5 Rh1 Rf5 Re1 Rd2+ Kg1 f2+ Kh2 f1Q+ Re2 Kc3 Nc7 Kd3 Rb1 Kc3 Rf2 Q1c4 Ba7 Kd3 Nb8 Kc3 Bc5 e3 Nd5+ Kd3 Bd4 e2 Ne3 e1R Nf1 Ree8 Be3 Kc3 Kg1 Kd3 Rf3 Ke2 Rb3 Kd1 Ra3 Rb1 Rb3 c1R Rd3 Rc3 Rd8 Rbb5 Rc8 Rbc5 Kh1 Rc6 Kg1 Rdd6 Kh2 Rd2+ Kh1 Rh8 Rc7 Qf6 Rh7 Rhf8 Rh8 Qff7 Kg1 Rdd3 Kh2 Rdd6 Bc5 Kc1 Be3+ Rd2+
1R6/r1q1P3/pB3kBP/P4P2/2n1Q3/NK1PNB1q/2p1q2b/1qb1R1bb w - - 0 1 legal: proof: c4 b5 e4 e5 g4 h5 b4 hxg4 f3 c5 Ba3 f5 Bc1 f4 bxc5 d5 c6 a6 Ne2 Ra7 Ng1 Rf7 Qa4 dxc4 Qd1 Rf5 exf5 e4 Nc3 e3 Nb1 Nd7 Bb2 Ndf6 Bc1 Ne4 fxe4 Bc5 Qf3 Be7 Qd1 Bf8 h4 Ke7 a4 g5 c7 b4 h5 f3 h6 e2 d3 f2+ Kd2 e1Q+ Kc2 c3 e5 g3 e6 g2 a5 g4 Qf3 g3 Ra2 Kf6 Ba3 Ne7 Ne2 g1B Qh5 g2 Nf4 Qe2+ Kb3 c2 Qg4 Rh7 Rb2 Bb7 c8B Nd5 Bd7 Qc7 Be8 Nb6 Bg6 Nc4 Qf3 Rd7 Qe4 Bh2 e7 g1B Bg2 f1Q Bf3 Qh3 Ng2 Bg7 Ne3 Bd5 Ka4 b3 Bc5 Bb7 Na3 Ba8 Rb1 b2 Re1 b1Q Bb6 Qb8 Nf1 Ra7 Ne3 Qc7 Qc6+ Kg5 Qe4 Bb2 Kb3 Kf6 Bh7 Bf2 Rhg1 Bd5 Rg8 Bfg1 Rb8 Bb7 Bg6 Bd5 Qf4 Be4 Bg4 Bf3 Qe4 Bh1 Bf3 Bc1+
2R1rB1K/2qPP3/2p1B1r1/1Rq1Qn2/P4p1n/1PR3N1/4pPb1/n1rkN3 w - - 0 1 legal: proof: b4 a5 Na3 axb4 Nb1 b3 Na3 b2 Nb1 Ra3 Nh3 Ra5 Ng1 Ra8 Nf3 g5 Ng1 b5 Na3 b4 Nb1 b3 cxb3 Bb7 Na3 Ba6 Nb1 Bc8 h4 gxh4 e4 d5 d4 e5 exd5 e4 Rh3 Bg7 Rh1 Be5 dxe5 Kd7 Ke2 Ke7 Ke1 Ke8 Kd2 Kd7 Ke3 f5 Kf4 h5 a4 c6 g4 h3 e6+ Kd6 g5 Kc5 Ke5 Kb4 g6 f4 d6 h2 g7 e3 e7 h4 Bc4 e2 Qf1 h3 Ba6 Rh6 Nf3 Nd7+ Kf5 Nf8+ Ke5 Qc7 Ne1 Rg6 Bc4 Nh6 g8R Nf5 Nc3 b1N Bb2 Na3 Ne4 Nc2 Rc1 Na1 Ng3 Bd7 Bd4 Re8 Be6 Bc8 Rg1 h1R Rc3 h2 Qg2 Ka3 Qe4 Kb2 Rg2 Rg1 Rh8 h1Q Rgh2 Qb7 R2h5 Qc7 Rg5 Qh5 Qd5 Rg8 Kf6 Ng6 Qe5 Rf1 Kf7 Ngh4+ Kf6 Rg6+ Kf7 Ba6 d7 Bc4 Rf8 Bd5 Rg8 Rb8 Rc8 Bg2 Kf8 Nc2 Kf7 Kc1 Kf8 Kd1 Kf7 Ng7 Kg8 Na1 Rf5 Qg5 Kh8 Rh1 Qf6 Rg1 Rb5 Qc5 Qg5 Ngf5 Bg7 Nd4 Qe5 Ndf5 Bf8 Ra8 Rcb8 Rh1 R8b7 Re8 Rb8 Rf1 Rc8 Kd2 Nc2 Rc1 Ne1 Kd1
N4q1n/B5n1/n2PR1rQ/1n1p1P2/4N3/PPp1KBr1/2Rp1P2/1b1Rnk2 w - - 0 1 illegal: No proof kernel
1brqnq1K/1PP5/R2p4/RrpQ4/1PBP1N2/6pp/5PR1/1BNkn1r1 w - - 0 1 illegal: No proof kernel
rRQ5/1Rp1q2p/1B2bP2/p1P1k2q/Pbb4b/2N2n1p/2PNP3/1R1K2B1 w - - 0 1 legal: proof: g4 b5 h4 a5 b4 d5 d4 e5 g5 Nd7 Be3 Nc5 Bg2 Ra6 dxe5 Rd6 exd6 f5 Bf3 g6 Bg4 fxg4 h5 gxh5 Bd4 Ne6 Bb6 Nc5 bxc5 h4 a4 Kf7 f4 Ke6 g6 d4 f5+ Ke5 f6 g3 d7 d3 g7 g2 Rh3 b4 Rf3 h3 Ra3 d2+ Kf2 b3 Ke3 b2 Nc3 b1B Rf2 Nh6 g8R Qe7 d8B Ba2 Rf1 Bc4 Rb3 Nf7 Rb2 Ng5 Nf3+ Kf5+ Kf2 Bh6 Qb1 d1Q Nd2 Qc1 Rb3 Qb2 Ke1+ Nf3+ Kd1 g1B Re1 Bf2 Rh1 Qg7 Be7 B8e6 Rb8 Bh4 Bd6 Qe7 Bh2 Rf8 Bg1 Ke5 Rb7 Ra8 Qa2 Qa3 Rb2 B6g5 Qb3 Be1 Qb5 Qa2 Qd7 Bgh4 Qc8 Qa3 Rb1 Qa2 Rh2 Qb2 Rg2 Qb5 Rg8 Qbe8 Qd7 Qh5 Rgb8 Bef2 Qc8 Be3 Nb3 Bc1 Nd2 Ba3 Be3 Bb4 Bf2 Bf7 Bg1 Bfe6
bbk2qnB/rN4Q1/2K2PPr/2RrN2B/3P1PPn/r3q3/1R3b2/1Nr2q2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 dxc4 Ke2 Kd7 Ke3 e5 Ke4 h5 Kd5 b5 g4 c5 a4 e4 f4 e3 d4 e2 a5 e1B a6 b3 f6 b4 a7 b2 Ra2 c3 Ra4 c4 Ra2 h4 Ra1 c2 Qd2 h3 Qh2 c3 Ne2 b3 Bd2 c1R Rg1 c2 Ba5 Rh5 Rg3 Bd6 Ra2 Qf8 Ng1 Bf2 Bb5+ Nc6 Nf3 Bb7 Ne5+ Kc8 Bb4 Bb8 Rc3 Rh6 Qh1 h2 Rc5 Rh5 Qe4 h1R Qg6 Rh6 Bd3 R1h5 Qg7 Rh3 Bg6 R3h5 Nd2 b1R Rb2 Ra1 Nb1 Ra3 Be8 Rch1 Bf7 c1Q Bg6 Qe3 Bf7 R5h3 Bh5 Ra5 g6 Rg1 Rb5 Nce7+ Kc5 Rc1+ Kb6 Nf5 Rc5+ Kd8 Ba3 Bg2 Bb4 Rf3 Kb7 Nh4 Kc6 Kc8 Ba3 Bc7 Bb4 Rb8 a8N Rb7 Ba3 Bb8 Nc7 Rba7 Ne6 Rb5 Nd8 Rba5 Re2 b2 Nb7 Rb5 Nc3 b1Q Rb2 Qbd3 Nb1 Qf1 Rc4 Qd8 Bf8 Rd5 Rc5 Rg3 Qh7 Qe7 Bg7 Qf8 Bh8 Qa3 Na5 Rdd7+ Kb6+ Bc6 Qg7 Rd5 Rcb5 Ba8 Nb7 Qc3 Ra5 Qce1 Rab5 Rga3 Rc5+ Bc7+ Kc6 Bb8 Nc3 Qe4 Nb1 Qe3
1q1rrQnq/2NnRP1K/1P1b4/1q5P/3R2P1/r2P2rn/1N4rB/1Bkb2B1 w - - 0 1 illegal: No proof kernel
1RNb3N/2P1r2r/2Qn3q/3R1r2/PBrP2n1/K1P1kb2/b2qB1Pr/2N2q2 w - - 0 1 illegal: No proof kernel
2qBbNb1/1bPP4/1QPn4/3r4/4B1qn/bq1Nr3/P2P1KRr/2bk1NR1 w - - 0 1 illegal: No proof kernel
1NRr1n1Q/1k4rN/2r1r2r/2PPqK2/8/Nn1bP3/Rb1PBBP1/qr4r1 w - - 0 1 illegal: No possible last move
3RqBk1/B4q1q/3nP1Pb/3B3K/qq3n2/PP1qr3/N1bR1Pr1/Nq3Q2 w - - 0 1 illegal: No proof kernel
N1B1b1N1/n4RPK/2k1BPn1/1nnn2P1/3n4/bqP1b3/2PB2rR/2q1Q1r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 Qe2 fxe4 Qf3 g5 hxg5 c5 Qg4 c4 Qd1 c3 dxc3 Qb6 Qd4 Qa5 Qd1 Qd8 Kd2 e5 Ke3 h5 g4 d5 f4 Kd7 a4 b5 f5 h4 f6 h3 a5 b3 a6 d4+ Kf2 h2 Kg3 e3 g6 e4 Kf4 b2 Kg5 e2 a7 e1N g7 b4 Kg6 b3 g5 d3 Bd2 e3 Nf3 e2 Na3 b1N Bh3+ Kc6 Nh4 b2 Bc1 d2 Ra2 Nd7 Be6 Nf3 Ng2 e1B Bf5 Bf2 Be6 Nd4 Rf1 h1Q Nb5 Ne7+ Kf7 Be3 Bg4 Rh2 Bf5 Qb6 Re1 Na3 Nf4 b1N Nc7 Nab5 Ng6 Rg2 Re2 N1a3 Be6 Nc5 Qe1 d1N Bd2 Bd7 Rb2 Rb8 a8B+ Rb7 Rb4 Na7 Rb1 Qb3 Rb2 Nd5 Kg8 Nf2 Ra2 Qf1 Kh7 Be8 Ra1 Nfd3 Ne7+ Kd6 Bc8 N3f4 Ng8 Ng6 Be6 Rb6 Bb7 N3b5 Bbc8 Kc6 Na8 Ra6 Rd1 Ra1 Rb1 Rg3 Rh2 Rg2 Qg3 Qc1 Qe1 Na4 Rb2 Bb4 Ra2 Nc5 Ra4 Ba3 Rb4 Nd6 Rb7 N6b5 Rf7 Qcb2 Qf2 Rag1 Qe1 Qc1
4R1Q1/r1NP4/PP1R4/5n2/br1bnn1n/1P1nB1P1/qr1Br2K/b2k1N1B w - - 0 1 illegal: No proof kernel
2r1B1N1/bBPQP1b1/1k1nb2B/1r5b/4P1bR/3qPn2/3qPrK1/3Rr1N1 w - - 0 1 illegal: Other
8/Pb3nB1/q3R1qq/1PN4r/Q2q1rR1/3P1b1B/Nb2PP1b/K2bk1Bn w - - 0 1 illegal: No possible last move, all moves rejected
1r2k3/1b1q2rP/P2bB2R/B5n1/P1Qr1N2/2K2b1R/Pb1nrPNn/1N2n3 w - - 0 1 illegal: Other
2Bk1Nn1/1p1N1KBn/rq2Q1P1/R1rr1Pb1/1q1n1R1P/3N4/q1b1PPb1/8 w - - 0 1 illegal: No proof kernel
bq1b1rrk/2RP3N/1Q3nPr/2BN1pP1/2P2r2/RPB1n2r/1K2n2b/3B4 w - - 0 1 illegal: No proof kernel
R1b2B2/1q3QK1/P1P4b/5B2/rNRP1nPq/pPq1b1N1/2Nk4/1r1qn2q w - - 0 1 illegal: No proof kernel
7N/1Pq3n1/1P1b1P2/b2P3R/Qr1k1bK1/3rpPR1/Bn1BqbN1/1b1B3n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 Ke2 Kf7 Kf3 Kf6 g4 Ke5 b4 a5 f6 h5 g5 c5 g6 a4 d3 h3 g7 a3 b6 c3 b7 a2 b5 h2 b6 h4 Be3 h3 Kg3 c2 f3 c1B Qe1 c4 Bc5+ Be3 Nd2 c3 Nb1 c2 Qc1 Rh4 Qe1 c1B Ne2 Qc7 Ba3 Nh6 g8B Nd7 Bg2 Rb4 Nbc3 Nc5 Nd5 Bf5 Nef4 Rd8 Rf1 h1Q Rg1 h2 Bf7 Kd4 Bf1 e5 Ng2 e4+ Ndf4 Bd6 Be2 Na4 Qd1 Nb2 Qa4 Bh7 Be6 Nf5+ Kg4 Ng7 Ng6 Bf2 Bd1 Bcf4 Nh8 e3 Rc1 a1B Ba2 Bg6 Rc5 Be4 Rh5 Bh7 Re1 Qf1 Re2 h1N Re1 Rc4 Bb4 Qe2 Bd2 Rb4 Rf1 Nc4 Rg1 Bc3 Ne1 Nb2 Rg3 Rc4 Ng2 Ba5 Be1 Be4 Bd2 Rb4 Bc1 Kc3 d4 Bb1 Bd2+ Kd3 Kh4 Bc5 Kh3 Rd5 Kg4 Bcd6 Rh2 Rc5 d5 Rc3 Rh7 Kd4 Rh5 Rd3
3B3q/1qR4N/Q5Pb/7P/1rbk3K/nPR4q/2nP1PpN/BB2qnrb w - - 0 1 illegal: No proof kernel
1n6/2K1k2P/1qPp2R1/2R2bPr/BbrR4/2nN1rrP/1BQn2P1/q2N2q1 w - - 0 1 illegal: Other
3n4/r1rB1BRp/PN2nPrR/1B1KP1b1/4b2P/kP4n1/1q4qb/2Q1N1b1 w - - 0 1 illegal: No possible last move, all moves rejected
1B3nR1/NB3P2/1Pn2K2/1Qr1PR2/1bqN1qn1/4p1b1/rPP2b2/kbq1R3 w - - 0 1 illegal: No proof kernel
4N2B/2RPq1Pn/1q2Qpn1/3r1Pr1/1n1q4/BN3R1P/kBb2Pb1/bq4K1 w - - 0 1 illegal: No proof kernel
nr1Q1r2/bP1n3N/Kb1B2B1/q1rR4/3n1Nr1/2qpPP2/2PP4/3kbN1R w - - 0 1 illegal: No proof kernel
rb4K1/kB3pPP/b1RR1BP1/3Qn2r/1Nnbn1b1/N1PP3n/6r1/5B1q w - - 0 1 illegal: No proof kernel
1KQ1N3/b1nNPPrr/bp2N1P1/bn3rP1/4b2r/RR3nk1/q5P1/6BB w - - 0 1 illegal: Other
2nq2Q1/1R2R2b/rNq5/pb1r2NP/rPNBP2k/6nn/PrB4P/4Kn2 w - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 h5 gxh5 e3 Ke2 b6 Ke1 b5 Ke2 Bd7 Kd3 bxc4+ Kc3 e2 Kc2 Bc8 d3 e1N+ Kd2 e5 Qc2 e4 Bh3 Bc5 Qd1 Bb6 Bf1 e3+ Kc3 e2 Kd2 Be3+ fxe3 Be6 Nc3 Bh3 Nb1 Bc8 b4 Ke7 d4 Kf6 d5 Kg5 e4 f5 d6 c5 d7 c3+ Ke3 c4 Kf2+ f4 Na3 c2 Qd4 c3 Rb1 Ne7 Rb2 Nf5 Bg2 Rh6 Qe3 Kh4 Rb3 g5 Nb1 g4 Ra3 f3 Nd2 Ng3 Bf1 Ng2 Nb1 e1R Qb6 Nc6 Nh3 Rd1 Nf4 Ne3 Nh3 Ne7 Nf4 Rd5 Qd4 Ra6 Bd3 Nef1 Be3 c1Q Nd2 c2 Nc4 Ra4 Rc3 a5 Qg7 Ra7 Bd4 Ra6 Nh3 Qh6 Rg1 c1R Nb6 Rb1 Qg8 Rb2+ Bc2 Qc6 Ke1 f2+ Kd1 Ngf5 Ng5 g3 Rc5 g2 Rb5 N1g3 Kd2 f1B Ke1 Bd3 Rf1 Ne3 Rf7 g1N Rh7 Nef1 Rf7 Qe8 d8N Nh3 Nb7 Bf5 Nd6 Nc8 Ndc4 Bh7 Re7 Qed7 Na8 Qdd6 Rbb7 Qd8 Nab6 Be2 Na3 Bb5 Nac4 Qg6 Re8 Qe6 Ree7 Qc6
1B3kbq/1B3nNb/KQ1R1b1p/n1P5/2Pr4/1n2P2r/Pq1P3N/bnN1R3 w - - 0 1 illegal: No proof kernel
4b3/2P3P1/B4N2/bNnn2n1/K1Q2Bq1/bPR1rbPP/1p1B2kn/2qr1R2 w - - 0 1 illegal: No proof kernel
1q4R1/P3NB2/p4K2/1P1r1Q1q/rbbP2B1/Pkr1b1nP/r7/1NbnR1N1 w - - 0 1 illegal: No proof kernel
1q1b3K/1q4Nq/1P1qP1QB/1BB4r/P1n1PpR1/R2n4/4nP1N/1k2rq1q w - - 0 1 illegal: No possible last move
N3b1B1/Rr4nq/K7/B1R2PN1/Qp3b2/n1PP2P1/Bp1r1Pq1/1r2n1kb w - - 0 1 illegal: No proof kernel
r3r3/R3NP1B/1P1pk3/RQ4nN/bb1K1P2/1p1P3n/qP2Br2/2Nn1qb1 w - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 d3 f5 exf5 b6 Bd2 b5 Bb4 cxb4 axb5 Qb6 Ra6 Qc7 Ra1 Qd8 Kd2 Kf7 Ke3 a5 f4 h5 c4 e5 g4 e4 c5 a4 f6 a3 c6 h3 c7 b3 b6 a2 g5 h2 g6+ Ke6 g7 h4 f7 h3 Qe1 Nf6 g8N Nh7 Ne2 Na6 Qd1 Nb4 Rg1 h1R Qe1 h2 Nd2 Nd5+ Kd4 e3 Rg7 Bb4 Rg4 d6 Qg3 Bd7 c8B Ng5 Qh3 Nc3 Qh7 Nd1 Rb1 a1Q Ne7 Re8 Nc1 e2 Ne4 e1B Be2 Rf1 Ng3 h1N Nh5 Nhf2 Qg8 Qa2 Ra1 Nfh3 Rg1 Qb1 Ra5 Rf2 Bb7 Ba4 Be4 Qd7 Bh7 Qa2 Qg7 Qc6 Rh1 Qg2 Qe5+ Kd7 Qd5 Qf1 Qb5+ Ke6 Rg1 Ne4 Rg5 Bed2 Rc5 Neg5 Rc7 Be3+ Kc4 Rf3 Rb7 Bg1 Rba7 Rf2 Kd4 Rg8 Kc4 Rgd8 Kd4 Re8
nN1r1r1n/2P1rPk1/3n4/R1P2qP1/bp2PB2/1q3RKp/2QN4/q2Bb1B1 w - - 0 1 illegal: No possible last move, all moves rejected
Rn1n4/qR1RbpQ1/3P2B1/2B3n1/2N1r3/2npP1K1/1Pb1kPP1/1r2nNb1 w - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 cxd5 exd4 d6 Kd7 b6 Kc6 b7 Kd5 Ra6 Kc4 Ra3 c5 Nf3 a5 Ra2 h5 Ng1 a4 Rh3 a3 Bd2 Qd7 Rg3 h3 Bc3 h4 Rd3 h2 Bd2 h1N Bg5 h3 Bh6 h2 Rd2 Be7 Nc3 Ng3 Qc1 h1N Bg7 Ne4 Nh3 Ra4 Ra1 a2 Qc2 Nhg3 Nb1+ Nc3 Bh6 Ne4 Qc1 Ng5 Rc2 Qc7 Qd2 Bf5 Ng1 Bg6 Rc1 Bc2 Nf3 Rh7 Bg7 Rh1 Nh2 Qa5 Qf4 Qa7 Qf6 d3 Na3+ Kb3 Kd2 Re4 Nc4 Rg1 Qh6 Rh1 Bd4 Rg1 Na3 c4 Bc5 Rh1 Qg7 Rg1 Rab1 a1N Re1 Bd8 Rbd1 Ne7 Rc1 Nec6 Red1 Rd4 Ke3 Be7 Re1 Nd8 Rb1 Nh7 Kf3 Ng5+ Kg3 Re4 Rbd1 Bb1 Rc1 Nc2 Red1 Ne1 Rc2 Ba2 Ra1 Bb1 Rc1 Bc2 Ra2 Nb5 Raa1 c3 Nc4 Bd1 Ra5 c2 Rca1 c1B e3 Kc2 R5a3 Nc3 Be2 Bd2 Bh5 Rh1 R1a2 Kc1 Ra6 Bc2 Bg6 Kd1 Nf1 Ke2 R6a5 Nb1 Ra6 Bc3 Rc6 Bcf6 Rc7 Nc3 Ra5 Re6 Rd7 Be5+ Kg4 Bh2 Ra1 Nbc6 b8R Bg1 Rbb7 Nb8 Kg3 Re4 Ra3 Qb6 Ra8 Qa6 Bd4 Qa7 Bc5 Nef3 Bd4 Nh7 Nfd2 Bh2+ Kh3 Rb1 Bc5 Ne1 Nf1 Bg1 Kg3 Ng5
kr4R1/8/2ppn1PP/1R1n1n1P/Pbb1r2B/PBNQrbK1/NnN1q3/8 w - - 0 1 illegal: Other
1bBnR3/Q1pR1n2/Np4P1/6kr/1rPbb3/qPNP3r/1PB5/2r2KNn w - - 0 1 illegal: No possible last move, all moves rejected
1rB1rn2/pR6/1p3bPk/1qP1PQ2/B2PN1P1/n1rb4/r6n/2bNB1RK w - - 0 1 illegal: No proof kernel
NB2K1b1/1b2N1b1/1n1P1B1B/R5b1/2q1PpP1/1p2P1QR/3nkPr1/3nq2r w - - 0 1 illegal: No proof kernel
2Rr1nN1/K1r5/3pP2B/PBR3q1/3Pk3/P3b1QP/1pRrq3/qnqNb3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 f5 b5 f6 Ba6 bxa5 b4 c4 Bb5 cxb5 exf6 Qc2 f5 Qd1 f4 Kf2 Ke7 e4 Ke6 d4 g5 b6 c5 e5 Kf5 a3 b3 h3 b2 e6 f3 Ke3 c4 b7 f2 Ra2 g3 Nd2 g4 Bg2 f1R Bc6 c3 Nb3 g2 Bd5 c2 Ne2 g1Q+ Kd3 g3 Kc4 g2 Kb5 Nf6 Be3 c1Q Bc4 Nd5 Nf4 Ra6 Na1 Rf2 Rh2 Rd2 Rh1 Ke4 Qf1 f5 Ng6 f4 Nc2 f3 Qf2 Bb4 Qg3 d6 Ra1 f2 Ne7 f1Q Bh6 Nd7 b8R Nf8 Ne3 Qe2 Rh2 Rc6 Ng8 Qg5 Nd1 Qgf1 Ra8 g1B Rc8 Be3 Rb1 Rc5+ Ka6 Nc3 Ra1 Rc6+ Ka7 Nb1 Bb5 Ng6 Ne7 Rd8 Ng8 Nf8 Rf2 Rdc2 Rf5 Be1 Rc5 Rd2 Rc7 Qcc4 Rg7 Nc3 Rc7 B1f2 Rc1 Qa2 Rc2 Qa1 Rc8 Nb1 Ba4 Qc4 Bb5 Qfe2 Rc3 Be1 Rd3 Qc2 Rdc3 Qc1 Rc2 Rc7+
1Br5/4K1R1/2P1BqRP/n4Rpb/P1N1nrP1/1pq5/2P1r1rk/1NQq1b2 w - - 0 1 illegal: No proof kernel
RB1bk1B1/1K1rNNP1/P3P2p/QP1r1b2/r1q5/b1pB2n1/P7/r2nR2q w - - 0 1 illegal: No proof kernel
1B1Q1KR1/1b3Pr1/1P1qp3/1p4r1/1RP1n1Pb/3bP1BB/2Nnkr2/3bN1q1 w - - 0 1 illegal: No proof kernel
1NBqn3/1r3ppP/1q4qP/P2N3r/P1bk4/B4PR1/K2qr1n1/1RBb3Q w - - 0 1 illegal: No possible last move
b1n1B1KR/rb1Npq1p/1BP3nP/1Q5R/1qP3B1/3Pb2P/1br5/Nn3k2 w - - 0 1 illegal: No proof kernel
7b/q1P4n/q1r1bp1K/pP1qP1P1/2rnP3/k3BN1Q/B4BRq/R5Nn w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 Ke7 Kf3 a5 Kf4 h5 Kg5 d5 c4 d3 g4 d4 e3 d2 b6 h3 c5 d3 c6 h2 b7 h4 c7 h3 Qc2 d1Q Qb3 d2 Bc4 Qd4 Ne2 Ra6 Bd3 Bg7 Qd5 Qa7 Qf3 Nf6 Qe4 Be6 Qf4 Nh7+ Kh5 f6 g5 Qf1 Rg1 h1N Qh2 d1Q Rg2 Rc6 Bc4 Qd5 Ba2 Rd8 Ng1 Qfa6 Nd2 Bh8 Qg3 h2 Ndf3 Rdd6 Qh3 Rc4 Kh6 Nc6 b8B Nd4 Bd2 Kd7 b4 Kc6 e4 Kb5 Bf4 Ka4 b5 Rdc6 Be3 Ka3 Bf2 Ng3 Be3 h1Q Bf2 Qh2 Be3 Qa8 Ba7 Nh1 Bb6 Q8a7 Bf2 Ne2 Bbe3 Nd4
knR3R1/1pPr2Pq/1B3NK1/5P1n/P3pNP1/1Qq1Br2/b3B3/b1q3qb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 d5 Kf3 Kd7 Kf4 Kc7 g4 h5 c4 e5+ Kg3 d3 Kh4 e4 a4 d4 f4 d2 c5 d3 f6 b3 c6 b2 g6 Rh7 Kg5 h4 Qb3 d1Q Be3 h3 Rh2 d2 Qc2 Bg7 Qc4 Qc2 Be2 d1Q Nc3 b1Q Qb3 Be6 Nd5+ Kc8 Rh1 h2 Nh3 Qbc1 f5 Qc3 Ra3 Qg1 Nhf4 Rh3 Ra1 Qf8 f7 Rf3 Nf6 Ra5 Ra2 Rd5 Rc2 Rd7 Kh5 Qe8 f8B Bd5 Bfc5 Qee5 Qb1 Ba2 Qb3 Qe8 Bb6 Qd8 Ne8 Nf6+ Kg5 Nh5+ Nf6 Qg3 Rd1 h1B Rd5 Qg2 Ra5 Qh8 Ra8 Qd3 Rc5 Qdc3 Rc4 Qgg1 Rc5 Bf8 g7 Bd6 Rc4 Ba3 Kg6 Bb2 Ra5 Ba1 Re5 Na6 Re6 Kb8 Re8+ Rd8 Rg8 Ka8 c7 Nb8 Rd4 Rd7 Rd2 Re7 Rdd8 Rd7 Rc8 Qh7+
1b2r3/P1nk1r2/2q1n1n1/Br2pPbp/P3n1q1/3NP1P1/2R2KBQ/3BR1N1 w - - 0 1 illegal: No extended proof kernel
kB3NK1/N2r1nQ1/bbpP4/P1Pr1b2/b1pBB3/n3R3/Pb2b1RP/7q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 b4 exf4 bxa5 Nf6 c5 Ng8 Qc2 Qf6 Qc3 Qd8 Qc4 dxc4 Kf2 Kd7 Kf3 Kc6 Ke4 f5+ Ke5 g5 e4 b5 d4 Kb7 h6 b4 d5 g4 d6 g3 h7 b3 Nd2 b2 Rb1 g2 Kd5 f3 e5 f2 e6 f4 e7 f3 e8Q Ra7 Qe4 Na6 Qe2 Nh6 Qd1 Ka8 Ke5 Be7 Ne4 Nb4 Nc3 Nc2 Nge2 g1B Bg5 Ba6 Ke6 Nf7 Qd4 Na3 Re1 b1B Nb5 Bc2 Qg7 Ba4 Bg2 f1B Ned4 Bd3 Re3 c6 Bh4 f2 Be4 Rd7 Na7 f1B Bf6 Rf8 h8B Qb6 Bg5 Bf2 Rg1 Qb1 Rg2 Bd8 Bh4 Bb6 Bd8 Bh4 Bc7 Bfe2 Bb8 Be1 Kf6 Bc3 Kg6 Bdc2 Kh7 Bb2 Ne6 Re8 Nf8 Qh1 Kg8 Re5 Qh6 Rd5 Bd4 Bb1 Qg7 Bbc2 Bf3 Bg6 Be4 Bf5
2N1k2b/1n2Pq1n/2n1P1np/2P1R2N/B1rPN1P1/r5Q1/1rpK1R2/1r1bB3 w - - 0 1 illegal: No proof kernel
R3B1nN/q2rR3/3bn2b/1bp2B2/1q1Pp1Pn/2QNP1k1/2P3P1/n2Kn2B w - - 0 2 illegal: Other
q3n2B/R2r1n1p/NnrN4/1P1nq1pP/1PbR4/1Bn5/1PRQ1Pq1/5k1K w - - 0 1 legal: proof: e4 b5 c4 f5 cxb5 d5 g4 dxe4 a3 fxg4 Nf3 e6 Ng1 Bb4 axb4 Qh4 Bg2 Qe7 Bf1 Qd8 h4 Kf7 d4 Kg6 d5 Kh5 d6 c5 d7 a5 Qd3 g5 Qd6 e3 Ra3 a4 Qb6 e2 Qc6 g3 Qd5 Kg4 h5 c4 Qg2 e5 Be3 c3 Ba7 c2 Ra1 c1N Nd2 e4 Nb3 a3 Nf3 a2 Bb6 Ra7 Qh2 g2 Nbd4 g1Q Nb3 Qg2 Ba5 Nf6 Nfd4 Ne8 Ne6 Kf3 Rb1 a1N Qg1 Na2 Rd1 Nc3 Bc7 Rb7 Nbc5 Nc2+ Kd2 e1N Na6 Ra7 Bc4 Nd3 Nec5 Ne5 Qe1 Ne3 Rc1 Ned5 Rc2 Nf7 Bb3 e3+ Kd3 e2 Qd2 e1Q Nb7 Rg8 Be5 Rg6 Bh8 Qe5 Ra1 Rc6 Nd6 Qa5 d8R Nd7 Ra2 N7b6 Ra1 Re7 Rd7 Qa2 Ra7 Be6 Rd1 Qe1 Kd4 Rd7 Kd3 Qh2 Kd4 Kg2 Kd3 Kf1 Kd4 Ne2+ Ke4 Nec3+ Kf3 Qh1+ Kg3 Qf3+ Kh2 Qa3 Qf4 Qg4 Rd4 Qe5 Nb8 Qa6 Kh1 Qb7 Qe3 Qa8 Qd2 Ndc7 Ne4 Bc4 Na6 N7d5 Nd6 Qg2#
2bq2q1/R1nb1pp1/1P2PqP1/NPB3b1/1PK3N1/n2RN1k1/6r1/4bnQB w - - 0 1 illegal: No proof kernel
KNR2qn1/qBr2p2/3b4/q1rnBP2/4QrN1/P1P1NP1p/4PR2/2r1kn2 w - - 0 1 illegal: No possible last move, all moves rejected
4B2K/1k3rBQ/qrn1P1P1/1p1q1bRp/NP6/r1rrR1PP/1b1N2r1/2R5 w - - 0 2 legal: proof: d4 e5 f4 exd4 b3 a5 b4 axb4 c3 g5 fxg5 b3 Nh3 Nc6 Ng1 Nb4 cxb4 Ra4 Nf3 Ra6 Ng1 Ra8 Kd2 d5 Kd3 Kd7 e4 Kc6 a4 f5 g6 h5 a5 b5 e5 f4 h3 b2 g3 f3 a6 f2 a7 Bg7 Qg4 Kb7 Ra3 c5 Bg2 f1R Bh6 c4+ Ke2 d3+ Ke3 c3 Kd4 c2 Qe2 c1R Qd2 Bf5 Qe2 d2 Nf3 d1R+ Nfd2 Qa5 Nc3 b1R Na4 Ne7 Re3 Rhb8 Rg1 Bf6 Bg7 Rb2 Qc4 Rc3 Qc7+ Ka6 Rh1 Rb6 Be4 Rf3 Qd7 Rf8 Qc7 Ra1 Rc1 Raa3 Qd7 Rf7 Qc7 Nc8 a8R+ Na7 Rc8 Rba2 Qd7 Rb2 Rc5 Rba2 Qe8 Kb7 Qg8 Qa6 Qh7 Rac2 Bf8 Bh8 Bg7 Rca2 e6 Rb2 Ke5 Nc6+ Kd6 d4 Re5 d3 Rd5 Bg4 Rg5 Bf5 Bd5 Rf6 Kd7 Rf7+ Ke8 Rbc2 Ne4 Rg2 Nd2 Rd7 Kf8 Rf4 Ne4 d2 Kg8 d1Q Nd2 Qf3 Bh6 Bf6 Bg7 Be5 Be4 Rdd3 Kh8 Qd1 Bf3 Qb3 Be4 Qd5 Re2 Nb8 Rg4 Rc8+ Qg8 Qc6 Ra1 Bb2 Rg5 Bg4 Re3 Rf7 Rc1 Bf5 Bf3 Rcc7 Qh7 Qe4 Rb1 Rcc3 Rc1 Qc6 Bd5 Kc8 Bf3 Qd6 Ba8 Qd5 Bc6 Kc7 Bd7 Nc6 Be8 Kb7
2RB3n/rK2bq2/1BpP3R/1k1PbR1r/1P1qq2p/1P1p1N1N/3n2bP/5Q2 w - - 0 1 legal: proof: d4 b5 g4 e5 a3 f5 e3 b4 axb4 fxg4 c4 d5 cxd5 e4 Bd3 exd3 Kd2 Kd7 Kc3 h5 Kc4 g5 Kb5 a5 f4 h4 d6 g3 f5 g2 b3 g4 e4 g3 f6 a4 e5 a3 f7 a2 Bg5 Qf6 Bd2 Ne7 Qh5 Ra7 Bf4 Ng6 Nd2 Be7 f8B Qf7 Qd1 Na6 Bg5 Nc5 Nh3 g1Q Qf1 g2 Nf3 Bb7 Rc1 Ne4 Rc6 a1B Bfh6 Bf8 Bd8 Nd2 Be3 Rh5 Rb6 Be4 Rc6 Be7 d5 Nh8 e6+ Kc8 Bb6 Qe3 Rc1 g1Q Kc6 Qgg7 Rg1 Kb8 Rg5 Be5 Rf5 Qh7 Re1 Qd4 Re2 Ka8 Rg2 Kb8 Rg6 Kc8 Rh6 Qhg6 Nfg1 Bg2 Nf3 Qgg4 Nhg5 Qge4 Nh3 Bf8 e7 Kb8 e8R Be7 Kd7 Kb7 Rf8 Ka6 Kc8 Kb5 Re8 Ra3 Kb7 c6 Bdc7 Qe2 Rc8 Qee4 Bd8 Ra7+
nb1nqB1R/5b1P/1Pr1B1rP/2RpNRp1/2n1q1P1/K6N/2r1k1pP/2Q5 w - - 0 1 illegal: Other
r1rNK2b/B4qPn/N1B1N3/3P1pP1/2r3RR/pQ1p1P2/3P1nnb/1q2k3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 b4 cxb4 Be2 d5 Bc4 g5 hxg5 d4 Ba6 Be6 Bf1 Bd5 exd5 Qa5 Nh3 Qb6 Ng1 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 h5 g4 a5 c4 f5 Ke6 h4 Kf7 e5 g6 e4 f3 e3 g5 a3 Qc2 b3 Nc3 a4 Be2 b2 Na2 b1Q Qd3 h3 Bb2 h2 Qc2 Qc7+ Ke8 Qf7+ Kd8 Nh6 Nb4 a2 Bd1 a3 Qb3 e2 Nh3 e1N Nf4 Ng4 Rg1 Nf2 Rg4 h1R Na6+ Kd6 c5+ Ke5 c6 R1h4 c7 Nd7+ c8N Ng2 Be2 Nf6 Bb5 Nh7 Ne6 Bd6+ Be8 Bb8 Nd6 Rf8 Bc3 Rh8 Ba5 d3 Nb7 Rf8 Bb6 Rg8 Rg3 Rc4 Ba7 Rf8 Rg4 Rh8 Nf8 Rg8 Bc6 Rh8 Rg3 Kf4 Rh3 Rg8 Rh4+ Kg3 Rg4+ Kh2 Rh4+ Kg1 Rg4 Kf1 Rh4 Qg7 Ke8 Ke1 Nd8 Bh2 Rg4 Qc1 Rb1 a1B Rh4 Qb7 Rg4 Bh8 g7 Qc7 Rb2 Qb1 Rc2 Rb4 Rcc4 Ra4 Rcd4 Rc4 Rh4 Qd6 Rdg4 Qg6+ Kd7 Qf6 Nfe6 Rf8 Nf7 Rfc8 Nfd8 Qg6 Ke7 Qf6+ Ke8 Qf7+
r2Rb1K1/1R1B1Qp1/b2r2P1/1qBq2p1/1nP2PN1/1nP5/1RPk2qp/N3b3 w - - 0 1 illegal: No proof kernel
1r3NN1/2np1B2/1bQ1R2p/2r1R1P1/P1PPBr2/1K1nkP2/r6p/qbr4R w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 bxa5 c6 Ba3 c5 Bb4 cxb4 c4 Kf7 g4 Kf6 d4 Kg5 Kd2 Kf4 Kc2 b5 f6 e5 g5 b3+ Kc3 h3 a3 h2 f3 h6 a6 b2 a7 b4+ Kb3 e4 f7 e3 Qe2 Ne7 Bg2 Bb7 Ka4 b3 Qc2 e2 Bf1 e1R Nh3+ Ke3 Bd3 Nec6 Nc3 b1R Ne4 b2 Nf6 Na6 Kb3 Rbc1 Be4 Nc7 Nf4 Nb4 Ng6 Bc5 f8R Nd3 Re8 Bb6 Re5 Rf8 Ng8 Rf4 Nf8 b1R+ Qb2 Rc8 a8B Re2 a4 Qe7 Bg6+ Be4 Bf7 Qe6 Bb7 Qh3 Ra2 Qf1 Ra3 Rb8 Ra2 Ra1 Qa3 Qg1 Qc5 Qe1 Qc6 Rb2+ Ka3 Rb5 Re6 Ra5 Kb3 Rc5 Rf2 Ra2 Re5 Rcc2 Rff1 Qa1 Re1+ Kd2 Ba8 Rc1 Re6 Bf5 R1e5 Bg6 Qb5 Bh7 Be4 Ke3 Qc6 Nb2 Beg6+ Kd2 Bh5 Bb1 Bhg6 Nd3 Be4 Ke3
2Rn4/Pnb1KN2/1k1Pb3/1p1Q1P1P/rpqP3R/5B2/1nrnpN2/4BN1n w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 e5 Kc4 c5 a4 Kc7 h4 g5 d4 b5+ Kb3 g3 f4 e4 a5 g2 a6 e3 h5 e2 f6 c4+ Kb2 c3+ Kb3 c2 f7 g4 f5 g3 Rh3 Nd7 Bd2 c1N+ Kc2 Bd6 f8N Kb6 Ne6 Nd3 Rh4 N7c5 Be1 Nh6 Nh3 g1N Neg5 g2 Nf2 Nh3 Nf7 g1N Bg2 Be6 Bf3 Qc8 Nd2 Nb2 Rc1 Bc7 d6 Nb7 Nf1 Rd8 Kd2 Rd7 Ke3 Re7 Bc6 Nf3 Ke4 Nd2+ Ke5 Re8 Kf6 Rf8 Ne4 Nf2 Ke7 Nh1 Qb3 Rg8 Bd5 Rg3 Nf2 Rc3 Bf3 Rc2 Ng5 Nf7 Qd5 Nfd8 Nf7 Bb8 Rd1 Qc4 Rc1 Rc3 Rc2 Bc7 Rc1 Ra3 a7 Rc8 Rc3 Ra4 Be4 Qc5 Ke8 Bb8 Bf3 Qc7 Rc1 Qc3 Ke7 Qb3 Rc3 Rc6 Re3 Rc2 Rc3 Qa2 Rc7 Qc4 Rc8 Bc7
2R5/2pqKQ2/5rRn/b5PP/2BPP2p/Nr2n2b/1Pn1Rp1B/kN2n2b w - - 0 1 illegal: No proof kernel
N7/P3NP1K/R2Qb2P/rk2Ppnr/R2np2B/4P3/r3R2p/1Bbb1bq1 w - - 0 1 illegal: No proof kernel
1bn5/n3p1PK/1qR1qN1N/5B2/p1Rn1rnQ/2PP3B/N1P1P1p1/2r3kb w - - 0 1 illegal: No proof kernel
R2qq3/n1r1p1PN/B1b1bPR1/P4k1p/2BrNP2/bp2QbK1/4P2N/6n1 w - - 0 1 illegal: No proof kernel
1rR2Bb1/N2P2R1/Rrp1NrpQ/b1n2q2/1b1qP2p/k1P1B1P1/2P2q2/7K w - - 0 2 illegal: No proof kernel
3qB1Q1/4n2p/1bPrP3/qR3bN1/q1R5/2n1P3/1pN1PBpP/1nK1bkB1 w - - 0 1 illegal: No possible last move, all moves rejected
8/1RN1P3/7r/3r1qpn/P1n1rRPn/Q1pp1B1P/NRr1b1P1/r1B1K1k1 w - - 0 1 illegal: No proof kernel
k4N2/2pbRnpq/1pRQ3r/2P3nB/PPnK1bb1/Pn1R4/4N2P/4n2B w - - 0 2 illegal: Other
4Qn2/p3B1p1/1K6/r3R2P/Rp2rn1P/P5Pb/1Pknr2N/RrN1qBr1 w - - 2 3 illegal: Other
RB3KR1/1B3P1r/1NrPp2r/1p6/PN2PqbN/3P2kr/3p1qr1/3Q2nn w - - 0 1 illegal: No proof kernel
1N2Rn2/1Pq3n1/1bKPq3/Np2pR2/QP1k1BN1/r3p1P1/2bb2P1/3Bnb2 w - - 0 1 illegal: No proof kernel
1q4k1/q4b2/3r1B2/1PPBR1b1/1NN1R1q1/pn1pqP1K/P1p1b1P1/Q3R2n w - - 0 1 illegal: No proof kernel
2r5/1Rn1p1BQ/1Bb2p1p/RPbBr3/P2k4/N4P2/r2PPb1n/2b1N1nK w - - 0 2 illegal: No proof kernel
1r3rqB/1pKpb1Pn/1B1R4/P1P2BN1/2Pn1p2/1bk5/3pQ1nP/4N1Rr w - - 0 1 illegal: No proof kernel forced: wxLB
3N1b1r/npn3q1/1RR1p1Pp/1q2k1N1/4Prp1/1B1BNb2/KP2P1P1/3nQ3 w - - 0 1 illegal: No proof kernel forced: bxLB
B6n/Rp3NB1/1PbR1pp1/r3P1q1/1n1Q2P1/1KP2p1q/1P1N4/1b1rkbN1 w - - 0 1 illegal: No proof kernel
1r2QRr1/1P6/br1P1B1n/1rP1RN2/1k2pqp1/5P2/Ppn1p3/N2Bb1KN w - - 0 1 illegal: No proof kernel
k1b4n/3qb2b/2r1N2K/p2pPppR/1q2RP2/1N1RPB1P/Q1Pn3n/B7 w - - 0 1 legal: proof: d4 c5 b4 a5 g4 b5 a4 h5 Ra3 hxg4 Ra2 e5 dxe5 Ra7 Ra1 Rb7 Nf3 cxb4 Ng1 b3 Ra2 b4 Ra1 Rb5 axb5 Bb7 Ra2 Ba6 Ra1 Bc8 Kd2 g5 Ke3 f5 f4 g3 h3 b2 b6 g2 b7 b3 Qd3 Rh6 Ra3 Nf6 Nd2 b1N Qc4 b2 Qa2 Ng4+ Kd4 Nc6+ Kd5 Nh2 b8R Be7 Nb3 Nd2 Nf3 g1Q Bg2 b1B Bb2 Qgb6 Re1 Qb4 Ba1 d6 Rb6 Kd7 Nfd4 Kc7 Bf3 Qd7 Ra6 Kb8 Ne6 Nd8 Ra7 Qda4 Rd7 Nf7 Rd8 Rf6 Rh8 Qe8 Rh5 Qd7 e3 Qb6 Ra4 Ka8 Re4 Qb4 Rg1 Nh8 Rd1 Nc4 Rd3 Nd2 Qa4 Ba2 Qa3 Rf8 Qa4 Ba6 Qa3 Rc8 Qb2 Rc6 Qa3 Bb1 Qa2 Bc8 Nec5 Kb8 Qa3 Nc4 Nd4 Nd2 Qb3 Qa7 Qa4 Bb7 Ke6 Ka8 Qb3 Ba2 Qc4 Ng6 Kf7 Nh8+ Kg7 Bc8 Kh6 Qab7 Qb3 Qd7 Qb2 Bc4 Ndb3 Bg8 Qa2 d5+ Ne6 Bh7
bb5r/2Bqn3/p1B1PKP1/PP2Np1p/6N1/3Rn1pk/bB1n1PR1/Q2q4 w - - 1 2 legal: proof: d4 e5 g4 exd4 c4 f5 c5 Qf6 g5 b6 gxf6 bxc5 Be3 c4 Bd2 Be7 Bc1 Bf8 h4 g5 Rh3 g4 Rh2 a6 Rh1 Ne7 Bd2 Rg8 Bf4 Rg5 hxg5 Ng8 Bc1 Ne7 Qc2 Bg7 Qd2 Bb7 Nf3 Kf7 Bg2 Nbc6 Nh2 Rh8 Qd1 Bf8 Nf3 Bc8 Ng1 Ng8 Bh3 Ke8 Bf1 Nb8 Kd2 Kf7 a4 Kg6 e4 h5 b4 d5 f7 c5 b5 c3+ Kd3 c2 a5 g3 e5 c4+ Kd2 d3 Kc3 d2 Kd4 c3 e6 Bb7 Ke5 d4 Qf3 d1Q Bc4 d3 Qc6 d2 Rh3 Ne7 Ra3 Nd5 Bb2 c1N Rh2 c2 Rd3 Ne3 Bd5 Nb3 Nf3 c1Q Qc3 Ba8 Na3 Qa1 Rg2 Nc6+ Kf4 Bh6 f8B Ne7 Ke5 Qac1 Qd4 Qc8 Bc6 Qd7 Nc4 Bg7+ Kf4 Bh6 Nh2 Bg7 Qc3 Bd4 Bh6 Ba7 Ng4 Bb8+ Qe5 Qf1 Bf8 d1B Bg7 Nd2 Bf8 Ng8 Bd6 Bb3 Bc7 Ne7 Qc3 Qd1 Ke5 Ba2 Qc1 Kg7 Qa1 Kh7 g6+ Kg7 Nf6 Kh6 Ng4+ Kg5 Bc1 Kh4 Kf6 Rg8 Bb2 Kh3 Nce5 Rh8
5k1n/6nb/B3bp1p/NPn3Q1/N2P1PN1/B2R1rp1/1PpbKPq1/3R1n2 w - - 0 1 illegal: No proof kernel
3Bb3/2rP2P1/PkN1N3/2n1pp2/r1rR2rK/NP5B/pQRpqP1b/4q3 w - - 0 1 illegal: No proof kernel
Nb1R4/2Pr4/1p2pp1P/b1Qpq3/1PBB1NPB/7R/b1K2Pq1/b1r1q1k1 w - - 0 1 illegal: No proof kernel
K7/B1r4R/1nBPr3/1b1NP1b1/n1NP1PR1/1qp1bpp1/QpkBp1P1/8 w - - 0 1 illegal: No proof kernel
1kr1r1Rr/4P3/pb2p3/2pB2qP/4bpPN/P1b2P1K/1p3n1R/BQ1N2R1 w - - 0 2 illegal: No proof kernel
n7/1Q4Nn/2P2K2/4B3/1qpp1PpN/1p1PBn1R/pPPrkq1b/1r4RR w - - 0 3 illegal: No proof kernel
2Q2nr1/1q1p2pR/1Pn1p1R1/P3p3/NNB3P1/B2P1P2/nr2p2B/bkn4K w - - 0 2 illegal: Other
1KbkB3/B3p2p/r3P1pb/P5N1/Qp1B1n1N/4R1PP/P1p1b1rq/3b3R w - - 1 3 legal: proof: c4 d5 b4 dxc4 f4 a5 bxa5 Nc6 Qb3 cxb3 f5 g6 f6 Nd4 Nf3 Ne6 Ng1 Ng7 fxg7 Ra7 Na3 Ra6 Nb1 Ra8 Kf2 b5 Kf3 c5 Ke4 c4 d4 f6 d5 b4 h3 b2 d6 f5+ Kd5 f4 Kc6 c3 e4 f3 g3 f2 e5 Nh6 g8Q Bd7+ Kb7 Bf5 Nd2 b1B Qb3 Bbc2 Ndf3 Bd1 Ng5 c2 Bb2 Ng4 Bd4 Ne3 N1f3 Nd5 Nh4 Ra6 Bb5+ Qd7+ Kb8 f1B Qa4 Bh6 Rb1 Bfe2 Rb3 Rf8 Re3 Kd8 Bc6 Qe6 Be8 Nf4 d7 Qc6 Ba7 Qg2 Bd4 Qh2 e6 Be4 Bc5 Bb7 Ba7 Bc8 Ka8 Kc7 d8B+ Kd6 Bb6 Rf7 Bd4 Kc7 Bg7 Kd8 Kb8 Rf5 Bf6 Rd5 Bh8 Rd2 Ba1 Bh5 Bh8 Rg2 Bhd4 Bhe2
5n1q/RN1Qb1k1/P4R1p/1PpN2r1/1pn1p3/PPp2B2/4PNpK/rBq5 w - - 0 2 illegal: Other
3N1B2/kr1N1q2/p4bP1/PnbrR3/bn2Rp1q/2PQ1BP1/n4P2/3N1Krq w - - 0 1 illegal: No possible last move, all moves rejected
N1B2n2/1qrQ1bpB/1R1prnP1/3q1KP1/rR3B2/3P4/Pb1q2P1/1n1k2bN w - - 0 1 illegal: Other
2n1k3/r2bN3/p2qRB2/rp4q1/2q1r1PQ/P2N1Pb1/1PK2Pq1/q1nB1BR1 w - - 0 1 legal: proof: h4 g5 d4 gxh4 d5 f5 d6 f4 Qd5 f3 exf3 cxd6 Qd3 d5 Qd1 d4 Kd2 e5 c4 d5 g4 h5 c5 b5 c6 d3 c7 h3 a3 d4 Qe2 h4 Ra2 h2 Qd1 h3 Qe1 e4 Nc3 e3+ Kd1 e2+ Kd2 Nc6 Nb1 Ne5 Nc3 Rh7 Nb1 Ne7 Ra1 Bd7 Ra2 Nc8 Qd1 e1R Qb3 Re4 Ra1 Bd6 Qc3 Qg5+ Kd1 d2 Kc2 Nd3 Ne2 Bg3 Rg1 h1Q Nf4 h2 Qc5 Rhe7 Nc3 Qg2 Ncd5 h1Q Qd6 Qhh5 Qh6 Qf7 Qh4 Qfg8 Rb1 Rf7 Ra1 Rh7 Ne7 d1Q+ Kb1 Qe1 Kc2 Rf7 Bd2 Nc1 Nd3 Rh7 Bb4 Qc4+ Bc3 Qed2+ Kb1 Qdf4 Kc2 Qd6 Rb1 Rb8 Ra1 Rb6 Rb1 Ra6 Ra1 Ra5 Rb1 Nb6 c8B a6 Bb7 Nc8 Bd5 Qa4+ Bb3 Qc4 Ra1 Rg7 Kb1 Rh7 Bd1 Rf7 Nf4 d3 Bf6 d2 Nd3 Bc6 Nd5 Ra7 Ne7 Qf7 Kc2 Bd7 Bde2 Nb3 Re1 Nc1 Bd1 Qc4+ Kb1 Rf4 Re6 Re4 Bb3 d1Q Bc2 Qe1 Bd1 Qa2+ Kc2 Qa1 Rh1 Qeb4 Rg1 Qc4+
2n1N3/P3qP1N/p2Rb1n1/1Nb2bqb/r1kp2BB/4PQ2/P2P1Rn1/2rbK3 w - - 0 1 illegal: No proof kernel
3q1r2/NN2nBP1/r1RPbR2/3qQ1B1/1qpq3B/bnP1n1p1/P1K2bP1/6k1 w - - 0 1 illegal: No proof kernel
5qqn/1P1bp1B1/PR2Pn1K/4bp2/1N3kP1/1b1rnP1n/rBQ2q1R/1N1B4 w - - 0 1 illegal: No proof kernel
3Q1B2/b1qp2p1/1NPrrN1R/3P1nP1/rn2P2K/n2RRB2/bPqq4/k4n2 w - - 0 1 illegal: No proof kernel
1KR2N2/1Pp1q3/q2B1qrk/P3b1qp/1RPP2n1/Nb2rBR1/1Q1b2rP/5n2 w - - 0 1 illegal: No proof kernel
4r1n1/R6P/KN1b1B1R/1npp4/2rPb1P1/1BP4n/q1q1P1Q1/k2qqBNn w - - 0 1 illegal: No proof kernel
3rqn1n/q5B1/3b2PP/2r1Np2/2qQp2r/2nNRPpP/B1KR2Pk/4R2b w - - 0 1 illegal: Other
3bRb2/2qrprR1/3b1Pr1/2PnN3/qkNnPK1p/p6Q/P4n1P/BN5B w - - 0 3 legal: proof: g4 f5 c4 fxg4 d3 b5 Bd2 bxc4 Bh6 Bb7 Bc1 Bc8 Nc3 c5 Na4 c3 Qc2 c4 Qd1 c2 Nc3 Ba6 Nb1 c3 Nf3 Nc6 Ng1 Bc4 dxc4 Nb8 f4 h5 Kf2 d5 Ke3 Kd7 b4 Kd6 f5 a5 b5 Kc5 b6 g5 b7 a4 Nh3 g3 Qe1 d4+ Kf3 h4 e4 d3 Qd2 g4+ Kf4 g2 Nf2 g1B Be2 g3 Bb2 c1N Kf3 a3 Kg4 c2 Qe3+ Kb4 Bd1 d2 Be2 d1Q Nc3 g2 Rb1 Nd3 Bf3 Nc6 b8N c1B Nd7 Ra7 Nb6 Qc7 Ba1+ Bb2 Kg5 Nf6 Ng4 Nf2 Ne5 Nd4 Kf4 Qa4 Rd1 Rg8 Nb1 Rg7 Rd3 Bc3 c5 Rf7 Nc4 Nd5+ Kg5 Qcc6 f6 Rd7 Rd2 Qc7 Qd3 Nh3+ Kg4 Bf2 Rg1 Bg3 Qf1 Nf2+ Kg5 Kb5 Rd3 Ba5 Rb3+ Ka6 Rb8 Bb6 Re8 Kb5 Nc6 Bd6 N6e5 Kb4 Qd3 Nc3 Kf4 Ba5 Re1 g1R Bh1 Rg6 Qh3 Qb8 Re3 Bd8 Rg3 Qc7 Rg4 Rh6 Rg8 Rg6 Rg7 Nd5+
3n4/2ppPr1q/KbPkrPR1/1b5n/Qrpq2B1/1N1P2P1/RN3Nb1/1nB5 w - - 0 1 illegal: No possible last move
n1q5/1pb1P1Nq/N2r2p1/3k2Pq/4RnQK/1PrbrR1p/1PP3BN/B2b4 w - - 0 1 illegal: Other
N1qRB1Nk/1pp5/1rBP1n2/2BP1Q1b/4Pb2/R4bK1/nPP3pn/1r4rq w - - 0 1 illegal: Other
2K4b/nBpN1q1k/P1P1rp2/R2RrPQ1/1Br3N1/2n2rP1/nPb1p3/1r4N1 w - - 0 1 illegal: No proof kernel
R2rr2n/4qB1q/1N2p3/1nbpP1rP/b1P3p1/1R2B1P1/PQ2b3/KN2k1bR w - - 0 1 illegal: No proof kernel
B1R2Bb1/2R1br2/2nq1QPp/4rp1P/r1n2NPp/q1r2PRP/n6k/3K3N w - - 1 2 illegal: Other
2qQnqR1/4np2/2q4B/1k2PP1B/pr4Np/P1B1P3/P2rR3/qnbbK2N w - - 0 1 illegal: Other
2b5/QRrp3r/8/2BqP2B/nPBPR1PN/r2Nqp1p/2r1qP1b/3K1nk1 w - - 0 1 illegal: No possible last move
4Bk2/2B2Nqp/rN1pPq2/bnpq2RP/PQ6/1b1P2nq/2P5/K1bBr1R1 w - - 1 3 legal: proof: f4 e5 fxe5 f5 g4 fxg4 b3 a5 b4 axb4 h4 b5 a4 g5 e4 d6 e6 g3 e7 g4 e5 b3 h5 g2 d3 b2 Kd2 b4 Nc3 b1Q Ne4 g3 Rh2 b3 Kc3 b2 Ng5 Nh6 Kb3 Ra6 N5h3 Be6+ Ka3 Bb3 Ng5 Nc6 Be2 Na7 Bf3 Nb5+ Kb4 Qa2 Qe1 b1Q Bd2 Nf5 N1h3 g1Q Bd1 g2 Nf7 Bh6 Nf4 Ng3 Nd5 c6 Bc3 Bc1 Nb6 Qe3 Rh4 g1B Rg4 Qbb2 Rg5 Bf2 Qd2 Be1 Rg7 Qf2 Nc8 Qg2 Rg5 Qh3 Qf4 Bcd2 Bf3 Be3 Qc4 B1d2 Rg1 Be1 Qh4 Bc1 Bd1 Qba1 Qf4 Bc4 Qd2 Rg8 Bd4 Rg6 Bb6 Re6 Bc7 Qd4 Qc3 Qd5 Qd2 Bb3 Nb6 Qb2 Nc4 Kd7 e8B+ Ke7 Nb6 Kf8 Qc3 Rf6 e6 Rf1 Qd2 Qg7 Qc3 Qdf6 Qd2 Nd4 Kc3 c5 Nh6 Bf2 Nf7 Be3 Qe1 Bcd2+ Kb2 Ba5 Kb1 Bc1 Qb4 Re1 Ka1 Nb5+
1r5Q/nK1pb3/2P1N1p1/2r1Bn1R/1k1bq1PP/Rnq1RP1n/2pP1N2/3B3b w - - 0 1 illegal: No proof kernel
4n1nn/1p3p1B/1Bnb1RN1/2Qb1P1P/1PNp2P1/3B2kr/KrbP1q2/3b1R2 w - - 0 3 illegal: No proof kernel
5bqq/3K1nPp/QR4qP/1B1r1R2/N1BrpP2/1PpnPp1b/2Nn1k1B/8 w - - 0 1 illegal: No proof kernel
3rk1Bq/1pnp1n2/r2P1PNP/1pRQKp2/P2N1r2/1bb4q/5P1N/n3B1R1 w - - 0 1 illegal: Other
5q2/pN1b4/1R1Prbn1/2qN1PB1/PP1kBrp1/1ppq1RP1/7n/QKB1n3 w - - 0 1 illegal: No proof kernel
1Q1Kb3/p2p4/nNP1n1BP/1N1P2Br/P2Rp3/q2rBbPp/1bR5/1k2q2q w - - 0 1 illegal: No proof kernel
1NKR4/1p1bpb1P/2n1R2p/1p3QPR/P1N2bnP/2B3k1/1Pbr1b1r/3B1q2 w - - 0 1 illegal: Other
NB1krq2/1b1b4/N1n1nR1P/1Q6/1pPpb1p1/2rPp3/1PBBP3/2KRr2r w - - 0 3 illegal: No proof kernel
NK1bB3/2QR2p1/RN1n2Pp/6Nn/1p3r1r/r1PqB1rP/b2bPP1p/k7 w - - 0 1 illegal: No proof kernel
k1r1bn2/1pnR2Kq/1P1R4/4pPb1/NPb4p/B1pQ1n2/1R1BPn1P/1r4N1 w - - 0 3 illegal: No proof kernel
1B1R1nq1/1N3q1r/Qp3P1p/1pb4P/BP1b3b/bRn1p2N/1PR1P3/3k1K1r w - - 0 3 illegal: No proof kernel
RQ5B/p7/k1b1Npbb/1rKn1PPR/Nn1n3p/1p1P3b/1PnN2BP/3r4 w - - 0 1 illegal: No proof kernel
8/BbkqnQ2/r1pb3p/1P1P1pNP/n2R1P1r/2PrBn2/2pp2RB/K1N5 w - - 0 3 illegal: No proof kernel
4r1b1/1p3NKP/BP2pNP1/q1Q1n1N1/p3r2B/2b1rP2/Ppp1n1k1/R2b3R w - - 0 1 illegal: No proof kernel
r1q2RB1/6P1/nNRp2n1/PKp1b1p1/1P1P1QPq/1q4r1/1B1pbp2/1N3k1N w - - 0 1 illegal: No proof kernel
4Qq1B/b1qr3p/rN6/p1R3n1/Pp5P/p2nR2B/1PNP1pP1/n1N1bk1K w - - 2 3 illegal: No proof kernel forced: bxDB
6b1/1p1K1pRn/qk3nBp/1pp2PB1/1bQPR1q1/1P3NPP/1q6/NrN2r2 w - - 0 3 illegal: No proof kernel
4rR1b/1p3pN1/PrQ1pB1p/b2qpB1P/1P2rP2/qnnKPkB1/2N5/6R1 w - - 4 6 illegal: No proof kernel
k2B4/P1pqpKp1/R1P4B/2qbNb1R/1n2r2p/2NpP3/Q5PP/rr4Nn w - - 0 6 illegal: No possible last move, all moves rejected
1Kb2bB1/2Pkp1RP/p1R5/N3n2n/2N3qP/P5p1/rppBP2q/rB1rQ3 w - - 0 1 illegal: No proof kernel
2N2nr1/b1pbpqRr/3n3p/2rPk1p1/QN1Rp1P1/2rPP3/1B3P1K/1B1R4 w - - 0 1 illegal: No proof kernel
b7/4Qr2/Pb2BPnp/nppr2B1/qp2NpRn/7P/PP2KBRN/2kn4 w - - 0 1 illegal: Other
B3r3/1p1bb1bp/pPq4P/1BQqN3/3Np1pN/1P2P3/1nR1K1Pq/R1r4k w - - 3 4 illegal: No proof kernel
2Q2Nq1/B1n2RpK/pN1q4/Pr3pb1/1pP5/b2BqkPb/PR2pP1B/7n w - - 0 1 illegal: No possible last move
5r1k/ppp3pn/1qRpbP1R/1P2rB2/q2B3K/1NrPP3/P3N3/2bQR1b1 w - - 0 1 illegal: No proof kernel
2B3n1/k1pprb1K/BNP2Pp1/p1r3P1/r4b1P/P7/3bRQ1p/2nRBNb1 w - - 0 1 illegal: No proof kernel
2r2B2/RN1PK1p1/P6R/1p2np1r/2pQn1Pp/1bp2Pr1/1q5P/N1b1kB1B w - - 2 3 legal: proof: b4 d5 c4 dxc4 Nc3 a5 Nd5 axb4 Nxe7 Bh3 Nc8 Bg4 Ne7 Bc8 g4 Kd7 d4 Kd6 Kd2 h5 Ke3 f5 Kf4 b5 a4 c5 e4 b3 a5 h4 e5+ Ke6 d5+ Kd7 e6+ Kd6 Ne2 b2 Qd4 b1R Nc6 c3 e7 c4 e8B Nf6 Kg5 Rb2 Kg6 Bb7 Kf7 Nbd7 Ra4 Qb6 Nd8 Rh5 Bg5 Bc6 Nc1 Rc8 Nb3 Ne4 Na1 Be7 Bc1 Bg5 Ra2 Re2 Ba3+ Qc5 Rd2 Qb4 a6 Re3 Nb7+ Kc7 Re2 Qb2 Bf8 Rg3 Rd2 Be3 Ke7 Ne5 Rd3 Bc1 d6+ Kb8 Bf7 Bd5 d7 Kc7 Rd2 Kc6 Rg1 Nd6 Bg8 Be4 Bd5+ Kc7 Bc6 Bc2 Bh1 Bb3 f3 Kc6 Rgg2 Ne4 Rge2 Ng5 Nc5 Kb6 Rd1 Ka5 Nb7+ Kb4 Rde1 Ka3 Re4 Ka2 R4e2 Kb1 Re4 Nef7 Re6 Ne4 Rc6 Ne5 Re2 Bd2 Rc7 Kc1 Re3 Kd1 Re2 Nd3 Re3 Bc1 Re2 Nc5 Re6 Ne4 Rh6 Ke1 Na5 Nec5 Ra7 Ne4 Nb7 Ne5
R1rrB1R1/N2K2Nq/3n1Pp1/1p3p2/rP1B1bPp/P1p1p1qk/4P3/2nBQ3 w - - 0 1 illegal: No possible last move
1R2B3/pn4Pb/Pn2p1Nr/1nQ1P2N/4npN1/bp2KP2/qPb1R1r1/1kB1q3 w - - 0 1 legal: proof: h4 c5 d4 cxd4 Kd2 g5 Ke1 gxh4 Kd2 b5 e4 h5 a4 d5 g4 Kd7 c4 Ke6 f3 Ke5 a5 d3 g5 Kd4 c5 b4 g6 b3 c6 h3 e5 h4 a6 h2 c7 h3 Ra2 Nd7 Qc2 Ngf6 Qc6 Rh6 Qb7 Ne8 Ra1 Nb6 Nc3 Nd6 Qc6 Nb7 Na2 Bf5 c8N e6 Qd7 Ba3 Kd1 d2 Ke2 d1N Qe8 Nc3+ Kd2 Nb5 Qc6 Qd6 Ne7 Rg8 Bg2 f6 Ke1 Kd3 Kf2 d4 Nc3 Kc2 Qc5 d3 Bf1 d2 Ke3 d1B Nge2 Qd5 Rg1 h1Q Nf4 h2 Nh5 Qc4 Rg4 Qa4 Rb4 Qa5 Be2 Qe1 Rb1 h1N Ncd5+ Nc3 Rb5 Nf2 Rb4 Ne4 g7 Rgh8 Ra1 Bh7 Ng6 f5 Ndf6 Rd8 Ng4 Rd2 Kf4 Qa4 Bb5 Rg2 Be8 Qa5 Ra2 Kb1 Rb5 Bb4 Ra4 Ba3 Rd4 Bc2 Rd2 Qa4 Re2 Qa5 Rb4 Nb5 Ke3 Qa4 Rc4 Bb4 Rd4 Qa2 Rd8 Ba3 Rb8 f4+
1q3k2/2p1b1N1/p2p2r1/2qQ1p2/B1P2RPn/PKN1r3/rp1PnPBR/Bb5n w - - 0 1 illegal: No proof kernel
5N1N/2rP4/P1R1Q2R/1kPqnK2/2rp1bP1/qP2nBr1/2B5/n4qQr w - - 0 1 illegal: No proof kernel
2R1n3/Qbnn1bb1/2Ppk3/P4bB1/r1P3B1/P5PN/1nr1N1K1/4n1RQ w - - 0 1 legal: proof: f4 a5 d4 e5 b4 exf4 bxa5 c5 dxc5 Bd6 g3 Bf8 Na3 fxg3 Nb1 g5 Nf3 g2 Bd2 g1N Bf4 Bh6 Bc1 Bf8 Nbd2 g4 Bg2 g3 Bf1 g2 Nb1 Qe7 Nbd2 Qe5 Nb1 Qg3+ hxg3 Be7 Qd4 Bd6 Qd1 Bf8 Kf2 Ke7 e4 h5 c6 b5 c3 f5 e5 d6 e6 h4 Nbd2 b4 Ne5 b3 Ba6 h3 Nef3 b2 Nb3 b1B Nh4 h2 Bd3 f4 Qf3 Nd7 Bc4 Ngf6 Bd2 Bf5 Bc1 Ne2 Bb2 g1N Nc1 Nd4 Ng2 Bg7 Ba3 Ne8 Ne2 Bb7 Bc1 Nb5 Be3 Kf6 e7 Nbc7 Be6 Rh4 Qe4 Nf3 Rhg1 h1B a3 Ne1 Rb1 f3 Ngf4 Rb8 Nh3 Bg2 Qd5 Ra4 c4 Bh1 Kf1 f2 Qc5 Bhe4 Qa7 Bd5 Bg5+ Ke5 Bf7 Bde6 Bh5 Bf7 Bg4 Ke6 Rb3 Bc8 Rf3 Rb2 Rb3 Ba6 Rb8 Bb7 Rd8 Rc2 Rc8 Nd3 Kg2 f1N Rb8 Nh2 Ra8 Nf3 Rc8 Bf8 Rb1 Nb2 Rg1 Nef6 e8Q+ Be7 Qg8 Nfe8 Qh7 Bf8 Nf2 Bg7 Qh1 Nf8 Nh3 Ne1+ Kf2 Nd7 Kf1 Nf3 Kg2 Ne1+
1q3B1k/2K5/QP1N1Pn1/1p3nP1/1r1Rb3/P1p2Bbn/3bN2P/1n1RQ2r w - - 0 1 illegal: No proof kernel
r1Q4N/rb1KP1rn/1b4PP/4r1QP/RB1bRnN1/4rq1r/5Pn1/1B3k2 w - - 0 1 illegal: Other
3N3R/PpPR4/b1B2rN1/rP1K3r/1q1n1Pn1/1P3r1r/1b1k1q2/1Q1q1Q1B w - - 0 1 illegal: No proof kernel
5R2/1Q1qR1PP/2Kb4/1Bp1QqNn/b3P2b/3Pr3/1rk2BPn/1r1N1qq1 w - - 0 1 illegal: No proof kernel
n3nR2/1QBP1Pp1/6N1/rP1P1R2/1r2k1B1/3b1b1N/QK1nbbP1/2n3nq w - - 0 1 illegal: No proof kernel
6b1/PP4n1/Nr1pQ2P/b1R3N1/1Pb2nQ1/rB1R1nn1/P4b1q/Kr2B1k1 w - - 0 1 illegal: Other
1Nb1b2n/kr1R3p/3QrP1P/1nq5/PP1qb3/PKQBBn1n/6Nb/4R3 w - - 0 1 legal: proof: g4 b5 d4 f5 d5 fxg4 d6 a5 c3 a4 b3 b4 cxb4 exd6 bxa4 d5 Ba3 d4 Bb2 Qe7 Bc1 Qd8 Kd2 c5 Kc2 g5 f4 d5 h4 Kd7 e4 Kc7 e5 Kb6 e6 c4 a3 g3 f5 c3 f6 g4 h5 g2 e7 d3+ Kb3 d4 e8Q c2 h6 g3 Qg4 d2 Qd1 d3 Rh4 Na6 Qe3+ Qd4 Qde1 d1B Rg4 d2 Be2 Bd6 Bb5 Nc7 Qd3 Ne7 Rg5 Ra6 Qee2 Ka7 Rh5 Ng6 Bd7 Nb5 Qee3 Bf3 Nh3 g1N Bf5 d1B Nd2 g2 Nc4 Be4 Ne5 Nf3 Nd7 g1N Nb8 Bh2 Nf4 Nh3 Ng2 Re6 Bd2 Be2 Re1 c1Q Qc3 Rg8 Qf4 Rg7 Be3 Rb7 Qd6 Nh8 Rg5 B2d3 Rg7 Bc6 Re7 Be8 Rd7 Be4 Bg6 Qd2 Bf5 Qc5 Bg6 Qdd4 Bf5 Bc6 Bd3 Be4
4NR1n/1Qb1PK1P/P3n1P1/1N2P1b1/2r1b3/4r1pk/2B1n2q/Q1R1Bnbq w - - 0 1 illegal: No possible last move
3B4/rP2r1R1/1nnP3P/P2k4/Rb1N2b1/Qbbrp1qq/K3P2B/2QN3r w - - 0 1 illegal: No proof kernel
r1Kn4/qn3Q1r/NpbP2B1/PprNR3/k3bP2/1nB5/bP2P3/2R1Qn2 w - - 0 1 illegal: No possible last move
1NB1nn2/3b1p2/1rB5/6Pq/1r1PN1b1/RRnQK1pP/1Q1P2Pb/2rk1n2 w - - 0 1 illegal: No possible last move, all moves rejected
Rq4b1/P1Pq2N1/4Q1P1/nk1p4/N1n2Q2/2KBRbn1/2nPPp2/B1r3rn w - - 0 1 illegal: No proof kernel
4N3/Q4pbq/1RQ3Pn/PN2PR2/n1p1Pb1r/1qB4r/2P1Bq1k/3K1qb1 w - - 0 1 legal: proof: g4 a5 b4 axb4 d4 e5 dxe5 h5 f3 hxg4 Kd2 g5 Nh3 g3 Rg1 b6 Ba3 g2 Bc1 g4 Ke1 g3 Rh1 Bb7 Ng1 Be4 Qd4 Bf5 Qd1 Bg4 fxg4 Ra5 Bh6 Ra6 Bc1 Ra8 a4 Ke7 h4 Ke6 a5 d5 g5 Kf5 e3 c5 h5 b5 g6 b3 h6 b4 h7 c4 Qe2 b2 Na3 b1Q Rh2 b3 Qf2+ Kg4 e4 d4 Ra2 d3 Rh1 b2 Rh2 d2+ Ke2 d1Q+ Ke3 Nd7 Qe1 Qe2+ Kd4 Qg5 Kc3 Nb6 Rh5 Bg7 Nf3 g1B Bd2 g2 Nb5 Qf2 Nh2+ Kg3 Ng4 Bh2 Nf6 g1B Be2 Nh6 Ne8 Qa1 Qd1 b1Q+ Rb2 Qg4 Be1 Na4+ Kd2 Qaa2 Rg5 Qb3 Rf5 Kh3 Qc1 Bf4+ Kd1 Qgg2 Bc3 Qa1 Rb1 Kh2 Qe3 Qaa3 Qa7 Rd8+ Bd2 Rd3 Rb2 Rh3 Bc3 Qe7 Rb1 Qeh4 Rb2 Rg8 h8Q Qh5 Nec7 Rc8 Qe8 Rh4 Qc6 Rd8+ Bd2 Rd3 Ne8 Rdh3 Bb4 Ng8 Be1 Qh7 Bc3 Nh6 Nd4 Qa3 Rb6 Qb3 Nb5 Qgf1+
2K3b1/P1Q2Nr1/PPp2q2/2P1b3/1q2npRP/Q2N1nq1/rqk1B2R/2r3B1 w - - 0 1 illegal: Other
1nqqB3/PP1NQb1p/1q3P1q/1R1Pn2k/KB6/2nQ1N1r/1r2P2p/1R4b1 w - - 0 1 illegal: No proof kernel
bq1Rr3/pP4Pb/n1Pb2p1/N1R1QB2/P2QbK2/2n1P3/3q2rq/4k1NB w - - 0 1 illegal: No proof kernel
Rq1nq2Q/2q2pRP/nr1NNP2/1p2P3/k7/B1b3K1/rPn1r2P/2qQ3B w - - 1 2 legal: proof: d4 c5 a4 cxd4 g4 h5 gxh5 e5 a5 e4 a6 b6 Qd3 Bb7 axb7 exd3 f4 g5 Kf2 a5 e4 d5 c4 Kd7 f5 Kc6 f6 d2 e5 d1R h6 g4 h7 g3+ Kf3 d3 c5 Kb5 c6 g2 c7 a4 c8Q d4 Qh3 a3 Qh4 a2 Ne2 g1Q Bg2 d2 Ng3 d3 Qe4 Qe8 Kf4 Ne7 Kf3 Nec6 Bh3 Re1 Kf4 d1Q Bg2 d2 Nf5 Qc2 Qd4 d1Q Ng7 Re2 Be3 Qdc1 Nd2 Bb4 Kg3 Bc3 Ne4 Na6 b8Q Nd8 Qd1 Ka4 Bc5 b5 Ba3 Qa7 Ne6 Qc7 Qc8 Qb8 Nd6 Ra7 Bd5 Rb7 Rg1 Rb6 Bh1 Rf8 Rb1 a1N Rg2 Qb3 Rg1 Nc2 Ra1 Rh8 Kh4 Rf8 Rg7 Qc4+ Kh3 Qcc7 Kg3 Qec6 Qd7 Qca8 Qe7 Re8 Qf8 Re7 Qe8 Qac6 Qf8 Qe8 Qh8 Nb4 Qg1 Ka5 Qd1 Qc4 Ra2 Ra7 Ra1 Na2 Bc5 Ra8 Bf2 Qcc7 Bd4 Kb4 Bc5+ Kb3 Be4 Nb4 Ra7 Bd4 Bh1 Bc3 Rb7 Ra2 Ra7 Na6 Ra8 Ka4 Bb4 Qd2 Ba3 Qc1
2rb1n1r/3PP2B/2B1PN2/6kp/rqQ1pq2/q1rR3P/1Q2PN2/1RnK1q2 w - - 1 2 illegal: Other
k1Nr2RB/rq3bq1/BRqqn2b/2Q4r/PpK4p/P3P1Q1/1P1r3P/5N2 w - - 1 2 legal: proof: g4 f5 d4 fxg4 d5 a5 d6 a4 Qd4 Nc6 Qd2 Na5 Qd1 Nb3 cxb3 exd6 bxa4 d5 Bd2 d4 Bg5 Be7 Bc1 Bf8 Kd2 c5 Kd3 g5 f4 b5 a3 h5 e3 d5 f5 Kd7 f6 Kc7 f7 Kb8 Bd2 g3 Qb3 b4 Qc3 g4 Ra2 c4+ Kc2 d3+ Kd1 d4 Qb3 g2 Bc3 g3 Kd2 h4 Qd1 Rh5 Qe1 Ra7 Qd1 Nf6 Qf3 Ne4+ Ke1 d2+ Ke2 d1R Qf2 Ka8 Qf3 Be6 Nd2 Qd6 Nh3 g1Q Ra1 g2 Rc1 Bh6 Qg3 Nc5 Nf2 Bd5 Nfe4 d3+ Kf3 Ne6 Bh8 c3 f8Q+ Qb8 Qfd6 c2 Qc5 Qd6 Be2 Bc4 Nf1 d2 Bd3 Bd5 Ke2 Bb3 Ba6 Ba2 Rb1 c1Q Ra1 Bd5 Kd3 Qf2 Rg1 Qf7 Rb1 Qb7 Ra1 Qdb8 Nd6 Ba2 Qb5 Qcc6 Nc8 Qbd6+ Qd5 Bb3 Rc1 Ba2 Rc5 Bb3 Rb5 Ba2 Rh1 g1Q Rb6 Qg2 Rg1 Bb3 Qe5 Qgg7 Rg6 Ra1 Qg3 d1R+ Ke2 Rd4 Qc5 Rad1 Rg5 Qdc7 Rg6 Rd8 Rg5 R1d7 Rg4 Bd5 Kd3 Q7d6 Rg5 Be4+ Kc4 Bg6 Rg4 Bf7 Rg6 Qde5 Rg5 Rd2 Rg6 Qed6 Rg4 Qge5 Rg8 Qg7
5Qb1/3r2Q1/p1nP1n1q/R3P2N/1k1p2br/4n1p1/BPP2bPB/2rNR1K1 w - - 0 1 illegal: No possible last move
R2r2Q1/3Q1bp1/5R1r/P2pPKNr/Pk1B2P1/q7/P2bpN2/n1nnbB2 w - - 0 1 illegal: Other
3B1N1b/P2Rq1kr/7r/PRppK1n1/2P1P1pN/3P1rQ1/b5b1/rQB1n3 w - - 0 1 legal: proof: f4 a5 g4 e5 b4 f5 bxa5 h6 Bh3 exf4 gxf5 h5 Bg4 hxg4 Kf2 Kf7 h4 b5 c4 c5 a4 d5 e4 g5 a6 g3+ Kf3 g2 d3 b4 a5 b3 h5 b2 h6 Qe7 a7 Nd7 h7 Kg7 Nd2 b1B Nb3 Ba2 Rb1 Nh6 Nd4 Nf7 Rb5 Rb8 Qc2 Rb6 Qb1 Rh6 Kg4 f3 f6+ Kg6 Ne6 f2 Rh2 f1R Nf3 Nde5+ Kg3 Bg7 Nh4+ Kh5 Rh3 Nf3 Nf8 Ne1 Rh2 g1R+ Rg2 Rg8 h8Q Bh3 Qh7 Rh8 Qg8 Rh1 Rgb2 R6h7 Rb7 Kh6 Rd7 Bg2 Rb5 Rf3+ Kg4 Re3 Kf5 g4 Kf4 Ng5 f7 Bd4 Qg7+ Kh5 Qe5 Kh6 Kf5 Reh3 Qg3 Bc3 Nfg6 Kg7 f8B+ Kf7 Bh6 Rf8 Kf4 Bh8 Bg7 Kg8+ Bf6 Rff7 Nf8 Rh6 Kf5 Rfh7 Be5 Kf7 Bc7 Kg7 Bd8 Rg1 Qd6 Re3 Qg3 Rf3+ Bf4 Rf2 Qc2 Nef3 Bd2 Ra1 Qb1 Ne1+ Bf4 Ne6 Ke5 Rf3 Bc1 Ng5+
3Q1r2/3q2pN/1P1p4/1BqP2RK/N2q1kPP/B2b1pr1/4P1r1/1bnRQ1r1 w - - 1 2 illegal: No proof kernel
1n1Rqk1N/1B3N2/QrP1r1b1/K2Rq1Q1/3Pp1pb/2P3Pq/ppP2B2/3r4 w - - 0 1 illegal: Other
1b1B1br1/pP1Q2pK/P2nqB1p/1p2RP1P/1P2r3/2k2N2/1p2Q1N1/4Rr1b w - - 0 3 legal: proof: e4 b5 g4 d5 b4 f5 gxf5 dxe4 c3 Nd7 Bc4 Ndf6 Bd5 Nd7 c4 Nb6 c5 c6 cxb6 c5 Bb3 c4 Ke2 cxb3 Kf1 Be6 Ke1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Kc4 h4 e5+ f6 h6+ Kg6 b2 a4 e3 d4 e2 f4 e1R h5 e4 b7 e3 f7 e2 d5 Qa5 d6 Qa6 f5 Qa5 d7 Qd8 a5 Qe8 d8B Be6 a6 Bd5 Nh3 Rg1+ Bcg5 e1B Qe2+ Kb3 Nf4 Bg3 Bgf6 Qe6 Ng2 Bb8 Nd2+ Kc2 Re1 Rf1 Nf3+ Kb3 Nd4+ Kc3 Rh4 Bc6 Re4 Bd5 Re5 Bc6 Nf4 Bh1 Nf3 Bc7 Be7 Re8 Bd8 Bb8 Ng2 Qa2 Bh4 Nf6 Bg5 Ne4 Bgf6 Rg8 Kh7 Bfd6 f8Q Qe6 Qf7 Bf8 Qd7 Nd6 Bb6 Rc8 Ba5 Rc4 Bad8 Re4
2r4b/bb1n1p2/4p1B1/K1P2Pp1/1N1Brp1Q/r1Qp2P1/R1qPk1P1/RN6 w - - 2 3 illegal: No proof kernel
nK1nq1RB/P2bR2r/2B2n2/2rPr3/2N2k2/1bpp2b1/1QPPQ1P1/r3r2N w - - 0 1 illegal: No proof kernel
N1b4q/q4R1n/b2pr2r/bB1Nbn2/8/k2P2pP/PrPK1BPb/1Q3RQ1 w - - 0 1 illegal: No proof kernel
2bR1n2/8/Pr3bbk/r1Bpn2p/r2PP1QP/QbKP3q/RNB2q1N/7q w - - 0 1 illegal: No proof kernel
nrn1q3/N3PQq1/bP2p3/2K1P2R/1pb5/1PQrk1B1/P2rNb1b/2RBn3 w - - 0 1 illegal: Other
2Q1qrnn/b3q3/Kb2NkPR/6pp/n2P1r1Q/3P2PP/2q1b1BB/3N1Rq1 w - - 0 1 illegal: Other
4K2Q/Q3p1Rp/1B4Nq/1RqBqk1r/1n1rbp1P/2PbP1nP/N3bP2/4n3 w - - 0 3 legal: proof: d4 c5 b4 cxd4 g3 a5 Kd2 axb4 Na3 g6 Nb1 Bg7 Ke1 Bh6 Be3 Bg5 Bc1 Bh4 gxh4 Ra7 Bh3 Ra6 Bf1 Ra8 Kd2 b5 Kd3 f5 a4 Kf7 a5 Kf6 c3 d5 a6 f4 h3 g5 e3 g4 a7 b3 Bg2 g3 Bf3 g2 Be2 b2 Qd2 b4 Ra5 b3 Bf3 Qb6 Qe1 Nh6 Qd2 Kf5 Rc5 Bb7 Be2 Na6 Rc4 Rhd8 Bf3 Nb4+ Ke2 Qc5 Na3 b1B Qa2 b2 Nc2 d3+ Kd2 d4 Bd5 Rd6 Nf3 g1N Ne5 Ba6 Ng6 Nf3+ Kd1 d2 Ke2 Rad8 a8Q Ne1 Rg1 d1B+ Kd2 Bb7 Q2a7 d3 Rg3 R8d7 Qh8 Be2 Re4 Rf6 Re6 Ba6 Rb6 Re6 Rb5 Re5 Bc4 Rd4 Bd5 Ng8 Rg2 Nf6 Rg4 Nh5 Rg1 Nc6 Nb4 Ng3 Na2 Nb4 Rg2 Bc2 Rg1 b1Q Ba3 Qb3 Rg2 Qa4 Rg1 Qa5 Rg2 Nc6 Bb4 Qc7 Ba5 Nb4 Bb6 Qb8 Kc1 d2+ Kb2 d1Q Ka3 Be4 Rg1 Qd2 Ka4 Qb2 Ra5 Bc8 Bc7 Nh1 Nf8 Nc6+ Nb4 Bca6 Rg7 Ng3 Bd8 Bac4 Na2 Kf6 Bc7 Q2b7 Bd8 Qd7 Bb6 Qg4 Ng6 Qg5 Ra6 Qh6 Ra5 Qcd6 Rc5 Rh5 Ra5 Kf5 Rc5 Na5 Kb4 Qdc7 Rb5 Nc6+ Kc5 Qcc8 Bd8 Qd6+ Kb6 Qce6 Kb7 Bcd3 Bb6 Qee5 Kc8 Qb4 Kd7 Qc5 Ke8 Nb4
r7/1n2Bbp1/Bn1P1QqR/1bp2Pbn/r1PQ1N1p/R4PkP/1N2b1b1/2K5 w - - 0 1 illegal: No proof kernel
1qKR4/p3b2r/PN2pQ1q/BPb1P2r/1R2P3/P2p1n2/Q1Bb4/N1k1n1rb w - - 0 1 illegal: Other
N6q/1p5K/1nR2bp1/4QrPR/NP1p4/B1n2Q1P/q2PPnqB/rb1kn3 w - - 0 3 illegal: No proof kernel
nb3nB1/1k2qpKN/1NpQ3B/bqP2Pn1/4b3/p1n2P1r/1PP1R2r/4R2Q w - - 0 1 illegal: Other
nQ2qQnq/pN5R/k1K1p3/1n3rbr/PrbPBP1p/2Br2PP/8/N4R2 w - - 0 1 illegal: No proof kernel
1q4Q1/1r1P1p2/pbB5/1pPnQRnr/1PN1rBP1/2Rq1k2/n3NP2/1K3bn1 w - - 0 1 illegal: No proof kernel
8/Nr1r2pB/1K3PQ1/1NnP1RPp/rR1n1n1P/3P1p2/Q4r1n/B1k1b1qb w - - 0 1 illegal: No proof kernel
Rr6/p4b1P/nr2p3/P3PbBp/k1pnQ1B1/2Pqq1R1/N1NPn1b1/2Q4K w - - 2 3 illegal: No proof kernel
2B5/PbP2bK1/1R4p1/1n1pp1p1/1qb1P2p/1k2B1RP/1nqPQ2Q/rN1r3N w - - 0 3 illegal: No proof kernel
5bk1/r2Prrpp/1q1pB1P1/1b1n4/QR1pq2P/1p4P1/K1NP4/n1BR2QN w - - 1 3 illegal: Other
R1Q3R1/p1K1BP1B/2pPppr1/Q2nb1pN/1n3q2/4Pk2/1P3Pbr/rr3N2 w - - 0 1 illegal: No proof kernel
rR3BQ1/p3P3/1bprNp1Q/1rP2Pr1/2N1P2p/3Bn2k/Pq1R2qp/3K3n w - - 0 1 illegal: No proof kernel
q2B4/R1Np1r1k/p1p1B3/1N2KbRP/np6/P1r1p2Q/2PPP2p/1bb1r2Q w - - 1 4 illegal: No proof kernel
1N1nN2K/r1R3NQ/q3nP2/qkP2B2/1pn1b1P1/2r1B2B/Pq2P3/5b2 w - - 0 1 legal: proof: f4 g5 h4 c5 hxg5 f5 b4 a5 d4 axb4 dxc5 b3 Rh6 b2 Rh1 e5 fxe5 bxa1Q Rh4 Bg7 Rh1 Bf6 exf6 Qc7 Nd2 Qb6 Nb1 Qd8 Kf2 d5 Ke3 Kd7 Kf4 Kc6 g4 b5 c4 h5 g6 h4 Kg5 b4 g7 d4 Kg6 f4 Na3 h3 Nb5 h2 Qb3 d3 Nh3 f3 Kf7 f2 Nc7 d2 Qc2 d1N Nf4 Bb7 Nh5 Na6 Ne8 Nc7 Qh7 Ne3 Bh3 Ne7 g8N f1B Kg7 Ra7 Rg1 h1Q Rg3 N3d5 Rc3 Qb2 Be3 Nb6 Rc2 Qhd5 Rc1 Q5d6 Rc3 Ng6 Rc2 Nf4 Ne7+ Kd7 Rc1 Be4 Nc6 Rf8 Rc3 Rf7+ Kg8 Nce6 Ng7 Qa8 Rc2 Nd8 Kh8 Nfe6 Rc3 Rc7 Rc1 Qa5 Nb8+ Kc8 Rc3 Kb7 Rc2 Qc6 Rc3 Qcb5 c6+ Ka7 Rc1 Qba6 Rc3 Rfd7 Rc2 Rd3 Rc1 Rf7 c7 Rc3 c8B Rb7 c5 Nc4 Rd1 Nf4 Bf5 Nfe6 Rd7 Rc7 Rf7 Kb7 Nd7 Kc6 Nb8+ Kb5 Re7 Rb7 Rc7 Ra7
4NkBQ/2bb1B1b/nR2q3/P3P3/3n1PP1/b1B1R3/2bP2r1/K1q1q1qR w - - 0 1 legal: proof: f4 a5 g4 f5 b4 fxg4 bxa5 e5 c4 d5 cxd5 e4 Na3 Ra7 Rb1 Ra6 Ra1 Ra8 h3 b5 Qc2 g5 Qc4 g3 Qa4 g2 Qd1 g4 Nc4 g3 Ne5 Ra6 Nef3 exf3 Rb1 Rg6 Ra1 Rg4 hxg4 Bd7 Qc2 Be6 Qd1 Bc8 a4 c5 e4 h5 d6 f2+ Ke2 h4 Kd3 h3 Kc3 h2 Kb2 c4 e5 c3+ Ka2 b4 a6 c2 a7 b3+ Kb2 Bd7 a8B Qf6 a5 Qe6 Bc4 f1B Bf3 Ne7 Bfe2 Nec6 Nf3 g1Q Ra3 g2 Ka1 Nd4 Ng5 Na6 Bb2 c1B Bf3 Bd3 Nf7 Bh7 Bfd5 Qe1 Bc3 g1Q Qf3 Be7 Qh3 Bd8 Qh6 Bc7 Qg7 Bb5 d7+ Ke7 d8R Bd7 Rb8 b2+ Ka2 b1B+ Ka1 Bc6 Qh6 Bd7 Rb6 Ke8 Rab3 Ba3 Nd6+ Ke7 Qh3 Kf8 Ne8 Qc1 Bb2 Qce1 Re3 Qc1 Bc3 Qge1 Rf1 h1Q Qh4 Qg2 Rh1 Qgg1 Bb3 Bhe4 Qd8 Rh2 Qh4 Rg2 Qh8+ Qg8 Bf7 Bh7 Qf6 Qg6 Bg8+ Qf7 Qh8 Qe7 Bbf7 Qf6 Nd6 Qe6 Ne8 Bbc2+
2R1N2Q/2Pqb2n/3P3k/2Bnb2r/K1P4n/3prR1R/3PP3/2NnnnN1 w - - 0 1 legal: proof: b4 h5 g4 hxg4 f3 e5 Kf2 d5 Ke1 c5 bxc5 a6 Bh3 g3 Bg2 e4 fxe4 d4 Bh3 Bd7 Be6 Ba4 Bc4 Bb3 Bd3 Bd5 Bb5+ axb5 exd5 Ra6 Nc3 Ra4 Nb1 Ra8 h4 g5 c4 f5 a4 Kf7 a5 Kg6 h5+ Kh6 a6 g2 c6 b4 a7 b5 c7 g4 d6 g3 Rh2 f4 Qa4 b3 Kd1 b2 Kc2 b4 Kb3 f3 Nc3 b1N Qd7 d3 Qc6 f2 Nd5 f1N Rh1 Qd7 Nb6 Ne7 Ra3 Nd5 Ka4 b3 Rh3 b2 Ra1 Na3 Qb5 b1N Qc6 Qc8 Qe8 Be7 Nd7 Nc2 Ba3 Ne1 Nf6 Nd7 Bc5 Nf8 Qd8 Qg4 Ne8 Nh7 Qc8 Rb8 a8N Qg7 Nb6 Nbc3+ Ka3 Qg4 Na4 Nd1 Nc3 Qd7 Na2 Rb5 Rb1 Rf8 Qb8 Rf3 Nc1 Re3 Qa8 Bg5 Ka4 Be7 Nf3 g1B Qd8 Bf2 Ng1 g2 Qc8 Kg5 h6 Bg3 Qd8 Be5 Qc8 Nhf6 h7 Kg6 h8R Nh7 Rf3 Kh6 Qa8 Rb6+ Rb5 Rc6 Rb8 Rb6+ Qc6 Rb3 Rc8 Rb5 Nh3 g1N Qa8 Ra5+ Kb3 Qd8 Bb6 Bd4 Rg3 N5c3 Qa6 Kh5 Rf8 Rae5 Qa1 Kh6 Bc5 Ngf3 Ng1 Nh4 Rff3 Rh5 Rh3 Nd5 Ka4 Bh8 Qa3 Ba1 Qc3 Bb2 Qh8 Be5 Ka3 Qd7 Kb3 Qf5 Ka4 Qd7+
b1k3N1/6qR/2PKP3/bbr4P/2p2Nq1/PBNnnPQq/4b3/B1B4q w - - 0 1 illegal: No proof kernel
Q3Bn1N/8/1k4p1/1N1RPrR1/Rb1Pq1r1/r1p2PPq/1qr1pKNP/8 w - - 0 1 illegal: No extended proof kernel
1Bbk1b1q/N4R2/r1pPbn1q/4nN2/rPR5/1P4R1/1PPKb1Nr/Q6b w - - 0 1 illegal: Other
4q1KN/PB1PRPb1/5Q1b/P1k2q2/b3Rpr1/5PBn/qRn3q1/2B2n1r w - - 0 1 illegal: No possible last move, all moves rejected
Q2rk1N1/2b3pn/3nq2P/3p1PPq/R2R1b2/2NPNP1R/2b1Brq1/n6K w - - 1 2 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 Bb2 h4 Be5 cxb4 a4 Rh6 axb5 Rh8 Bg3 hxg3 c4 e5 h4 a5 b6 d5 h5 g2 b7 b3 c5 e4 c6 a4 h6 a3 Ne2 g1B Rh2 e3 Ng3 a2 Nc3 b2 Qa4 b1Q+ Ke2 Nd7 Kf3 e2 Kg2 e1Q d3 Nb6 b8R Nf6 Qa7 Bd7 Qb7 Nc8 Rh3 Bh2 Kh1 Bd6 Qa7 Be5 Rb4 Nh7 Rd4 Rf8 Qb7 Qc2 c7 Qh4 Qa6 Ke7 g5 Qh5 f3 Ba4 Nb1 Rd8 Qa5 Rb8 Qa8 Rb2 Nc3 Kf7 Nge4 Bhf4 Nf6 Qe4 Ng8 Ke8 Rb1 a1N Rd1 Nb3 Ra1 Qce2 Ra2 Na1 Ra3 Rd2 Ra2 Bc2 Raa4 Na7 c8N Bc7 Nb6 Nc8 Nc4 Nd6 Ne3 Qe6 Qa6 Qf2 Qa5 Qg3 Qa8 Rf2 Be2 Qg2+
Qq1n3k/P1P1p2b/3qrNnN/3RPqp1/P4N1r/Rn4bK/P7/B3Rn2 w - - 0 1 illegal: Other
Nr3qB1/k2pPP2/4B3/1pnP1bn1/1R2P1KP/q1b5/1N1bQNb1/B2r1n2 w - - 0 1 illegal: No proof kernel
1R2NQ1N/bPR1n1B1/p1PP4/q1nq4/1rrp4/5bR1/N2P1PbK/k1br4 w - - 0 1 illegal: No proof kernel
1RQ2q1n/bP2r3/P4bp1/R2PpKB1/3qnBB1/2nkP3/5qP1/4RnNb w - - 0 1 illegal: No possible last move, all moves rejected
1r4bn/pb1pB1N1/P2rQP2/6nr/BkN1P2P/R1nP4/3K1n2/4BrbN w - - 0 1 legal: proof: b4 e5 a4 b5 c4 bxc4 f4 h5 fxe5 f5 g4 f4 Ra3 Qg5 Rg3 Qf5 gxf5 Bb7 Rg6 Bc8 Rg4 hxg4 h4 Ke7 e4 g5 e6 Kd6 a5 c5 a6 c3 e7 g3 f6 g2 b5 c4 e8N+ Kc5 b6 f3 b7 c2 Rh3 c3 Bb2 c1N Qa4 f2+ Kd1 g4 Bc4 f1B Nc7 g3 Kc2 Nd3 Bb5 Nf2 Nd5 Nc6 b8B Nd8 Be5 Bc4 d3 Bb7 Qb3 Rh5 Nb6 Rb8 Nc8 Ne7 Rh2 Ne6 Ne2 g1R Nd6 g2 Nd2 Ng6 Bg3 Rf1 Ba4 g1N Ne8 Nh8 Ng7 Ng5 Bc1 Be6 Nc4 Bg8 Bd2 Bd6 Be1 Be5 Bf4 Bd4 Ng3 Ne2 Nh1 Be3 Qa2 Kb4 Bc7 Bd4 Bd8 Bc5 Nd2 Bd4 Qe6 Bb6 Be7+ Bc5 Kb1 c2+ Kb2 c1R Nc4+ Nc3 Rg2 Rb1+ Kc2 Rc8 Kd2 Rc6 Rg3 Rd6 Rf3 Nfd1 Rf5 Bg1 Ra5 Rb3 Bb5 Nf2 Ra3 Kc5 Bc6 Rb6 Bb5 Kb4 Bc6 Ba8 Bb5 Rb8 Ba4 Bb7
1B2BB2/Pp1p1R2/1b3N2/1k1N2qb/3P4/pPQqn3/3PNnPr/2K2rrb w - - 1 2 illegal: No proof kernel forced: wxLB
5B2/NRRqBn1p/Pq2r2R/k1nq1P2/p1P2p2/r4B1K/1Pbbb1QP/8 w - - 0 1 illegal: No proof kernel
Bn1n4/p1Ppn1BP/Kn2PQ2/1r1q1P1r/N7/1p1n3N/1B1PkNbb/3R4 w - - 0 1 illegal: No proof kernel
B3rbr1/1N3n2/2pb1kn1/r1qp3P/2RPbpQ1/rP1P1N2/1NP5/K2B1B2 w - - 0 2 illegal: No possible last move, all moves rejected
1N3br1/P2Bp1P1/Rpbp1B2/r3B2r/kP2r3/N2N1b2/q2PP2K/3nQ2n w - - 2 3 legal: proof: f4 g5 fxg5 a5 b4 h6 c3 axb4 cxb4 h5 g4 Ra6 a4 Nc6 g6 Ra7 g5 Nb8 Ra3 Ra6 Rg3 Ra8 Rg4 hxg4 Kf2 c5 Kg3 f5 h4 b6 g7 c4 h5 c3 a5 f4+ Kh2 c2 h6 d6 g6 Kd7 h7 Kc6 a6 Kb5 Bb2 c1R Qc2 f3 Nh3 g3+ Kg1 g2 Qc5+ Ka4 Qd5 f2+ Kh2 g1R Bg2 f1B Nf4 Nf6 g8N Bg4 Qd3 Nd5 Qf5 Ne3 Nf6 Nd7 Na3 Bf3 Nd3 Ne5 Bh3 Rc4 Nd7 B1g2 Nb8 Re4 a7 Ra1 Qf4 Nd1 Qg3 Ra2 Qe1 Ng4+ Kg1 Ngf2 Be5 Qe8 Kh2 Qf7 Rf1 Rg8 h8B Nh1 Bhf6 Ra1 Bg4 Qa2 Bh3 Rc1 Bf5 Rc5 g7 Ra5 Nc6 Rc8 Nb8 Rcc5 Bd7+ Rcb5 Qg3 Nb2 Ra1 Nd1 Qe1 Bh3 Bc8 Be6 Bd7 Bd5 Qg1 Bc6 Qe1 Rd5 Bc3 Ra6 Nf2 Qc4 Nb5+ Kb3 Nd3 Rg5 Bce5 Rh5+ Kg1 Qc2 Ra5 Qa2 Ra4 Ra5 Na3 Rc5 Ra6 Rd5 Bg5 Ra5 Bgf6 Rf5 Kh2 Ka4 Kg1 Rg5+ Kh2 Rh5+
N3KR2/1R2Q1np/1NP1rPn1/8/pr2rr2/P2pr1qP/1rb2NP1/1k1B2R1 w - - 0 1 legal: proof: c4 g5 d4 f5 f4 c6 e4 Bh6 b4 Na6 c5 Nc7 d5 Na6 b5 Nb8 b6 fxe4 dxc6 Bg7 f5 Be5 Bf4 Bc7 bxc7 gxf4 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 Kb5 d5 h3 a5 f6 d4 a3 f3 Qa4 f2 Qd1 e3 Qb3 Ke4 Bc4 f1R Rh2 e5 Ra2 a4 Qb4 e2 Rh1 e1R Bb3 Kd3 Rh2 e4 Ne2 e3 Ra1 Nd7 Bd1 Rb8 Qa5 Rf4 Nbc3 Ne5 Ng3 e2 Nh5 Nh6 Qa7 Nf5 Ng3 Re8 Nh1 Ng6 Ra2 Ree4 Rb2 Ng7 Nd5 Qd6 Nb6 Bf5 c8R Qc7 Na8 b6 Ka6 b5 Rf8 b4 Nf2+ Kc3 Rh1 b3 Rb1 b2 Rg1 Rb4 Qb7 Qb8 c7 Re6+ c6 Bc2 c8N d3 Qe7 Qd6 Ra1 b1R Ncb6 Kb2 Kb7 Kc1 Ra2 R1b2 Kc8 Qe5 Kd7 Kb1 Kd8 Qe3 Kd7 Qg3 Kd8 Rf1 Kd7 e1R Kd8 R1e4 Kd7 Kc1 Kd8 Rfe1 Kd7 Rb1 Rb2 R1e3 Rb3 Rb2 Kd8 Nh5 Ke8 Kb1 Nd7 Rbd4 Rb7 Rdb4 Ndb6 Ng7+
4Q3/1p1r2pb/k1NP1nRp/2RPrq2/1K1q1r1N/7P/1P2rNPB/qq3R2 w - - 0 1 illegal: No possible last move, all moves rejected
Q3r3/3rP1Rn/1b1NPRn1/K3B1Pp/3p1pp1/1P5P/3kN1nR/Nbq2r2 w - - 0 1 illegal: No proof kernel
6k1/4K1P1/1Bq1b1B1/r2pNbQ1/rppB1P1n/2PN1b1n/1PPp4/N3R1r1 w - - 1 2 illegal: No proof kernel
2NBk3/1N3pRr/2P4Q/p2NrPpq/Pr2rP1p/n1Kb4/BP6/1B4bn w - - 0 2 illegal: No proof kernel
4B3/p1Qb1Bnq/1p5p/1q2R2P/2P1K2B/1qR1p3/P2rP1Pn/1RN1nk1b w - - 0 3 illegal: No proof kernel forced: bxLB
1NKn1r2/3q1p1N/1B3PPN/pRpq1n2/P2r4/1pRPn3/1PQRb2k/7r w - - 2 3 legal: proof: Nf3 d5 Ng1 e5 Nc3 d4 Nb1 d3 cxd3 Bf5 Nh3 Be6 Ng1 Bc8 f4 g6 f5 e4 Kf2 e3+ Kg3 exd2 Kf3 Nh6 Kf2 Ng8 g4 Qd5 h4 Kd8 f6 Qa5 g5 Kd7 Bh3+ Kd8 Bf5 gxf5 Kg2 Ke8 Kf1 Bh6 g6 Bg5 hxg5 Qd5 Rh5 Qd6 Rh1 Qd8 Kf2 Kd7 Kf3 Ke6 Kf4 a5 e4 h5 a4 b5 g7 b4 e5 h4 g6 b3 Na3 h3 Nb5 h2 Nf3 Qd7 Qc2 d1Q Na7 Ne7 g8N Nbc6 Nh6 Nd8 Be3 Rf8 Bb6 c5 Nc6 Qf1 Rc1 Qg2 Rhe1 h1R Ng5+ Kd5 e6 Rb8 Ba7 Rb4+ Re4 Kd6 Bb6 Rd4 Nb8 Kd5 Nh7 Qf3+ Kg5 f4 Re2 Nf5 Rd2 Ke5 e7 Qfd5 Kg4 f3+ Kg5 f2 e8R+ Kd6 Re4 f1N Kf4 Rc4 Rd4 N1e3 Re4 Rc3 Rb4 Rc4+ Kg5 Ke5 Rb5 Ba6 Qd1 Rch4 Rc3 Rd4 Qc2 Bb7 Ng8 Nh4 Kh6 Kf4 Kg7 Kg3 Nh6 Re8 Nf8 Nhf5+ Kg8 Re6 Nh7 Rc6 Kf8 Rc8 Rd1 Bc6 Rd2 Nb7+ Bd8 Qe5 Qb1 Bf3 Qd1 Qed5 Qc2 Q7d6+ Ke8 Be2 Qb1 Kh2 Qc1 Qa6 Qc2 Qa7 Na6 Nfd6+ Kd7 Ra8 Bb6 Ndf5+ Kc7 Rf8 Nb8 Nd8+ Kc8 Qad7+
bB3b1R/p1p5/2P1n2b/k1rNrp2/br3R1Q/P2Pn1P1/KB4pP/R2B4 w - - 0 1 illegal: No proof kernel
4B3/6qP/3pk2n/1b3bpQ/Q1b3PP/N2r1B1P/1NRP1n2/Q1K2nq1 w - - 0 1 illegal: Other
N1qr4/1Qb3R1/N4pK1/B3p1qP/7B/2Qrk2N/nPP1nnPP/n7 w - - 0 1 legal: proof: d4 c5 e4 d5 exd5 b5 a4 Nc6 axb5 Nb8 d6 Qd7 d5 Qc7 Ra4 Qd8 f3 h5 Rd4 cxd4 Bd3 Bh3 Bf5 Bg4 fxg4 g6 gxh5 gxf5 Kf2 Kd7 Kf3 a5 Kf4 e5+ Kf3 f6 b6 a4 b7 f4 Ke4 f3 Kf5 d3 Nd2 f2 Ne2 f1Q+ Nf3 d2 Kg6 a3 Ned4 a2 Nb5 a1N Ng5 Nc6 Qe1 d1N Nh3 Qc8 Qc3 Nb4 Nc7 Nh6 Bg5 Nf2 Bh4 Ra3 Na8 Na2 b8Q Qfc4 Rd1 Qf4 Rd4 Nf5 Qb7+ Qc7 Rd3 Nd4 Rg3 Ne2 Rg4 Be7 Rg5 Bd8 Rg3 Ke8 d7+ Ke7 d6+ Ke6 Rg4 Qc5 Rg5 Bc7 d8B Qc6 d7 Kd5 Rg4 Ke4 Rg3 Bd6 Ba5 Bc7 d8N Rf8 Ne6 Rd8 Qe1 Re3 Qc3 Red3 Rg5 Ke3 Nc5 Qd7 Na6 Qc6 Kh7 Qd7+ Rg7 Qc8 Kg6 Qg5+
K2R4/b1PN3p/n2p2P1/2PnR2p/3Pr2p/R4NP1/p2Q3Q/3rBk1n w - - 0 1 illegal: Other
1N1QQ1nk/KR1b2qP/2qr3P/q3b2P/5Q2/2B1bPr1/1N1R2qP/4q2r w - - 0 1 illegal: Other
1RNkb2q/3r4/nPp1b2q/Q3b1nB/8/RP1P4/r3PR1P/BqQ2n1K w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 gxf5 Ne7 Nc3 Ng8 Ne4 h6 Nf2 h5 Ng4 hxg4 Kf2 a5 Kg2 g5 f6 f3+ Kf2 a4 b3 a3 d6 a2 d3 c6 b6 g3+ Ke1 g4 Ba3 f2+ Kd2 g2 Ke3 g3 Kf3 Bg7 Qb1 Be6 Nh3 g1Q Bc5 Na6 Bd4 Ne7 Ng5 Nf5 Ne4 Ne3 Bh3 f1B Qc1 g2 Bg4 Rh7 f7+ Kd7 f8R Be5 Re8 Qg5 Bh5 Qh6 Rb8 Bf7 Bb2 Be8 Bc3 Ke6 d7 Ke7 Nd6 Rg7 Rb7 Kd8 Nc8 Ra7 Rb8 Re7 Rb1 a1Q Bd4 Qb2 Ra1 Qb1 Ra3 Qf2+ Ke4 g1N Ba1 Nf3 Rg1 Qe1 Rg2 Qc3 Rf2 Bh3 Ra8 Nd4 Rb8 Ne6 Kf3 Nf1 Qf4 Nf8 Qc1 Be6 Kg2 Nh7 Kh1 Ng5 Rf4 Bh8 Ra2 Nc5 Rg4 Ra5 Rf4 Na6 Rf2 Rf7 Nd6+ Ke7 Ra4 Qcg7 Ra2 Qg8 Ra4 Be5 d8Q+ Kf8 Nc8 Qgh8 Ra2 Ra3 Qd5 Ra4 Na7 Ke7 Qa5 Kd7 Nc8 Kd8 Qcc3 Rd7 Qc1 Rc4 Ra4 Rc2 Ra3 Ra2
1qRBN3/5q2/4Pb2/Q1n2p2/qPqP1n1n/5Pr1/1kP1N2r/1BbK1B1Q w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 g5 h4 e5 dxe5 gxh4 Qd3 c4 Qd5 Nf6 Qd1 Ng8 b4 d5 Bd2 d4 Bc1 d3 Ra3 Bf5 Rb3 cxb3 Kd2 Bg6 Ke3 d2 Kf3 Bd3 exd3 Be7 Ke2 Bf8 g4 Kd7 f3 Ke6 b6 Kd5 g5 Kd4 e6 h5 b7 a5 g6 f5 g7 a4 Nh3 a3 Rh2 a2 Nf2 a1B Ng4 b2 Rg2 h3 Nc3 b1N Nd5 h4 Bb2+ Nc3+ Kf2 h2 Nf4 h1Q Qe2 d1Q Qd2 h3 Rg3 h2 Rg2 Na6 b8Q Nc5 Qb5 Qb8 Qc1 Ne7 g8B Bh6 Nf6 Ng6 Ne8 Nh4 Bf7 Rh7 Qa5 Qe2+ Kg3 Qe4 Kf2 Ra7 Bh5 Rag7 Qb1 Qeb7 Ke1 Qf7 Rd2 Rg3 Ne2+ Kd5 Rd1 Bc1 Bg4 Qg1 Bh3 h1Q Rd2 Qd4 Bg2 Na2 Kd1 Qc4 Bf6 Rh8 Be7 Bf6 Bd8 Qg1 d4 Qe3 Qa1 Qa3 Rd3 Qa4 Qb1 Bh6 Ra3 Nc1 Rc3 Nd3 Qa1 Bc1 Qb1 Nf4 Bh3 Qcb5 Rc4 Ncd3 Rc8 Nc5 Bfg2 Kc4 Ke1 Rgg8 Nc3 Ba3 Kd2 Rg4 Qh1 Bc1+ Kd1 Rg3 Bf1+ Nd3 Be2 Ng6 Bhf1 Rh2 Nd5 Nh4 Nf4 Kc3 Ng2 Kb2 Nf4 Ne1 Bc4 Neg2 Ba2 Qc4 Ne2 Nf4 Bb1 Qa1 Ng1 Qa3 Ne2 Qa4
3nR1r1/2RPB1nn/1PnqBb1q/k1pQ2r1/P1PN2P1/Q5b1/1q6/K2R4 w - - 0 1 legal: proof: g4 g5 f4 d5 fxg5 Kd7 e4 dxe4 g6 Ke8 g5 Bf5 h3 Bg4 hxg4 a5 b4 Qd4 b5 Qd6 Nc3 Qd8 Nd5 Kd7 Nb4 axb4 Qf3 Ke8 Qe2 Bh6 Qd1 Bf8 Bc4 Bh6 Bd5 Bg7 Bxb7 Bf8 d4 Kd7 Kd2 c5 c4 Kc7 Kc2 Kb6 Kb2 e5 a4 h5 d5 f5 d6 f4 g7 e3 g6 e4 Ra3 f3 Rc3 f2 Nf3 f1N Nd4 h4 Ka1 h3 Kb1 h2 Bc6 b3 Qf3 e2 Ba3 e1N Qe2 b2 Qf2 e3 Bb4 e2 Qf4 Ne7 g8R Nf3 g7 e1B Rg1 h1Q Re3 Ng5 Bd2 Qh6 Reg3 Nh7 Re3 Ng3 Bd5 Nh5 Be6 Bg3 Qf3 Nec6 Rd1 Be7 Re8 Bf6 g8Q Ng7 d7 Qc7 Rb3 Nd8 Bg5 Nbc6 Rb4 Rc8 Qa3 Ka5 Bh4 Qd6 Rb3 Bfe5 Be7 Bf6 Qf7 Rf8 Qh5 Rg8 Qd5 Na7 b6 Nac6 Rf3 Bg5 Rff8 Bf6 Kc2 b1Q+ Kc3 Qd3+ Kb2 Qb3+ Ka1 Nh5 Rc1 Rg5 Rd1 Ng7 Rg8 Ra8 Rh8 Nb7 Rc8 Qb4 Rc7 Rg8 Re1 Qb3 Rd1 Nbd8 Qg2 Re8 Qd5 Qc2 Rf8 Qg2 Rf7 Rh8 Rf8 Rg8 Re8 Qb2+
7K/R3b1B1/nprb1B1b/2N1n1n1/1nP3PP/RP2BQ2/1k1q1bP1/2r1Q3 w - - 0 1 illegal: No proof kernel
krN2q2/P2b4/1r3q1r/8/Pr1p4/nNRPQ1K1/PP1rBqn1/QB5B w - - 0 1 illegal: Other
1KNrB3/R1p1n1Pn/3qQ3/P1P3q1/3B1Q1b/2nkNQ2/2b1q1PP/5bq1 w - - 0 1 legal: proof: d4 e5 dxe5 h5 a4 b5 f4 g6 Qd3 h4 Ra3 a5 b4 axb4 Qe4 h3 Rf3 Rh5 Rf2 Rg5 fxg5 Bb7 Qd3 Bc8 Rf5 gxf5 Qxh3 Ra6 Qh5 Rh6 Qh3 Rh8 Qh6 Nf6 Qh7 Ng8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 c4+ Kd4 e4 d5 g6 b3 g7 b4 e6 b2 e5 b3 e7 Nd7 e8Q Ndf6 e6 Ne7 Nc3 b1Q c5 b2 Nge2+ Kd3 Ke5 d4 Qh5 f4 Be3 f3 Nd5 f2 Nb6 Nh7 Qf3 f5 Qf7 f4 a5 Qd1 Ng3+ Qe2 Nf5 b1N Qf6 Bb7 Nc8 Be4 Qh4 Nc3 Qg5 Ned5 e7 Rg8 e8Q Be7 Qh6 Bh4 Ke6 Qg5 Kd7 Ne7 Qe6 Rh8 Qeh5 Rf8 Qfg4 f3 Qf4 Kc2 Qhf7 d3 Bd4 d2 Ne3+ Kd3 Rg1 d1Q Rh1 Ned5 Kc6 Rh8 Kb7 Ne7+ Kb8 Rd8 Rg1 Qa4 Q7f5 Qd7 Qff7 Qd6 Qh5 Kd2 Qhf7 Bc2 Rh1 Qea6 Bb5 f1B Be8 f2 Qf3 Kd3 Q7f4 Be2 Re1 f1Q Rb1 Qg1 Rb7 Bf1 Ra7 Kd2 Qa2 Qe2 Qe6 Kd3
Q1B5/1r1B2b1/n3rn2/1Pq4P/pk1NPbN1/3KQ1pn/1r2PP2/1b1BR3 w - - 0 1 illegal: No proof kernel
1r1r3Q/N2pQ1Rn/1Kp3Rn/1Pnb3P/R3rq2/2k2PP1/1q4P1/b1B2N2 w - - 0 1 illegal: No proof kernel
k3n1r1/1n2r1RK/2q1B2p/Pb1N3p/PB1BR1PQ/2P5/4b2P/2r1Qn1r w - - 0 1 legal: proof: e4 e5 d4 a5 f4 f5 exf5 c5 b4 cxd4 bxa5 g6 Nd2 Bh6 Ne4 Bg7 Ng3 e4 Nh5 Be5 fxe5 gxh5 Ke2 b5 a4 d5 g4 Kd7 f6 Kc7 e6 Kb7 e7 e3 Kd3 b4 e8Q h6 c3 b3 f7 e2 f8B e1R Bc5 b2 Be2 b1N B1a3 Qb6 Qd8 Nd2 Bb2 Nf6 Nf3 Bd7 Nh4 Nf1 Ra3 Nc6 Ng6 Ra7 Rb3 Ne8 Nf4 Rg8 Qh4 Nd8 Bba3 Ka8 Bab4 Qc6 Qd2 Rb1 Qde1 Rc1 Bf3 Rc7 Be4 Nb7 Bf5 Rg5 Be6 Rg8 Ke2 d3+ Kf3 d4+ Nd5 d2 Kf4 d1R Kf5 d3 Bd4 d2 Rb2 Ng7+ Kg6 Be8+ Kh7 Re7 Rg1 Bd7 Rg2 Be8 Rf2 Bd7 Rf7 Ne8 Qe5 Re1 Rg7 d1B Rf2 Be2 Rf4 Qc7 Qe3 Bdb5 Re4 Qc6 Qef2 Ne3 Qfg3 Rh1 Qe1 Nf1
1b2K1Q1/8/4Pb1q/p1NrB2b/2RBB2P/N1n1r2p/rP1kP1Pr/5nQ1 w - - 0 1 illegal: No proof kernel forced: bxLB
4k3/P1QqpbQn/1b2r1r1/2Pr3B/1Pr1PBnP/3N2R1/bpK2R2/6R1 w - - 0 1 legal: proof: f4 g5 fxg5 h5 g4 c5 d4 cxd4 gxh5 a5 b4 a4 Nd2 Qc7 Nb3 Qd8 Bg2 axb3 Bc6 Nf6 Bxb7 Ng8 Kd2 d5 c4 f5 a4 f4 e4 d3 h4 d4 g6 f3 h6 b2 g7 f2 h7 f1B a5 Nd7 a6 Ngf6 g8Q Ne5 a7 Qd7 Qa4 Neg4 Qe6 Bg7 Nh3 Bh6+ Kd1 d2 Bd5 Be3 Kc2 d1R Qe5 Bb7 Bg8 Bd5 Rh2 Bf7 Qaa5 Rd8 Nf4 d3+ Kb1 d2 Rf2 Be2 Qac7 Bb6 c5 Bec4 Kc2 Rg1 Nd3 d1R Bf4 Ba2 Qg5 Rg2 Qg7 Rg3 Nc1 Rd4 Nd3 Qe6 Rg1 R8d5 Kd1 Qd7 Kc2 Bh5 Be6 Bf7 Bf5 Rg8 h8R Nh7 Bg6 Rg2 Bh5 Rg3 Bh6 Rf3 Rg3 Rf6 Bf4 Re6 Rg1 Nhf6 Rh6 Nh7 Rf6 Qc6 Rg6 Qd7 Qge5 Rg7 Rg5 Rgg6 Qg7 Ngf6 R5g2 Ng4 Rg3 Rc4+
bB2n1R1/2pnkPp1/1N5P/bQNP1qPq/3n1Q2/3r2B1/PN6/1n3K1r w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 h5 g4 b5 c4 f5 exf5 b4 cxd5 b3 g5 b2 Bh3 bxa1Q Bg4 hxg4 f4 e5 d4 g3 h4 g2 f6 e4 h5 e3 f5 e2 a6 Qe7 d6 Kd8 a7 Qe4 d7 Be7 d5 Qa4 f7 Qa6 f8B Qg6 f6 Bc5 f7 Qd3 Bf4 Qdc3+ Qd2 Bb4 Nf3 g1N Ne5 Qc2 Bc5 Qf5 Bg3 Bb7 Nc4 Nf6 Nb2 Ne8 Be3 Ke7 d8Q+ Kf8 Bef2 Nd7 Qb8 Ba5 Bd4 Bc6 Qb5 Ke7 Be3 Rb8 a8N Nf3+ Kf2 e1N Nb6 Nc2 Nc3 Ba8 Nca4 Rh6 Nc5 Qd1 Re1 Na3 Kf1 Nd4+ Qf2 Qdg4 Qf4 Nb1 Bef2+ Re6 h6 Re3 Re2 Kf8 Re1 Rd3 Re6 Qh5 Rd6 Ndf6 Rd8 Nd7 Rc8 Ke7 Bg1 Nef6 Rg8 Ne8 N6a4 Qhg6 Nd1 Qb6 Qc6 Rd8 Ne4 Nb5 Ke2 Nd2 Qc4 Qbg6 Ba7 Rc8 Nec5 Rb8 Qb4 Rb6 Bb8 Qh5+ Kf2 Re6 Nb6 Nd4 Qb5 Re1 Nb2 Nb1 Kg2 Rh1 Kf2 Rh2+ Kf1 Rh1+
kn1RR3/qN6/P1pbP2b/1r1b2bQ/r1QP4/1q1NqKP1/2Pp4/B5N1 w - - 0 1 illegal: No possible last move
KRn2B2/1r5P/1P1bbnP1/k1P2p1Q/1Nq3qq/1p3QP1/8/1RN1q1bN w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 d5 a4 dxe4 f4 g5 fxg5 Qd6 Na3 Qd7 Nb1 Qd8 g3 h5 Bh3 a5 Kf1 h4 Qe1 b4 Bg2 h3 Qd1 hxg2+ Ke1 Ra7 Ne2 Rb7 Ng1 Rb5 axb5 Rh7 Kf2 Rh5 Ke1 Rh8 Ke2 Kd7 Ke3 Kc7 c4 e5 h4 f5 d4 b3 b6+ Kb7 g6 Ka6 h5 a4 c6 a3 d5 a2 c7 Nc6 d6 Qe7 h6 Nb4 d7 Qe6 d8N Qd6 c5 Qe7 h7 Be6 c8Q+ Ka5 Nc3 Nf6 Qh5 Nc6 Nge2 Na7 Qc6 Nc8 Nd1 g1B+ Nf2 Rg8 Bb2 Rg7 Nc1 Qf7 Rb1 a1Q Qb7 Bd6 Nc6+ Ka4 Nb4 Ka5 Qd5 Qa4 Qdd1 Qg8 Qdf3 Rb7 Bc3 Qd8 Bd2 Qb5 Bc3 Qc4 Ra1+ Kb5 Ra8 Qe7 Rb8 Ka5 Bd4 Qd8 Kd2 Qe7 Be3 Qd8 Bh6 Qe7 Bf8 e3+ Kd1 e2+ Kd2 Qg4 Kc3 e1Q+ Kd3 e4+ Kd4 Bh2 Rg1 Qe2 Nh1 e3+ Qf4 Ne4 Qf3 Qeh4 Rd1 Bg1 Re1 Bd7 Kd5 Be6+ Kc6 Qc4 Rd1 e2 Rf1 Nf6 Rd1 Rg7 Re1 Bc7 Kb7 Bd6+ Ka8 Re7 Nca2 Rd7 Rb1 e1Q Nc1 Rb7
B2RNB1B/pK4pP/3QPn1r/2b5/1k5P/3PqPrr/1b2r1R1/1b4qQ w - - 0 1 illegal: No proof kernel
nb5R/1b3QPP/2p4P/2kq2BK/2p1R1Rb/q1P5/1PQnBNqb/2n5 w - - 0 1 legal: proof: d4 a5 g4 d5 f4 h5 gxh5 g5 e4 b6 Nd2 g4 Nc4 dxc4 d5 b5 a4 Ra6 e5 Rd6 exd6 bxa4 Qd3 Rh6 Qe2 Rg6 Qd1 Rg5 fxg5 Ba6 Nf3 Bb7 Ng1 Bc8 Ke2 Kd7 h4 e5 h6 f5 h7 e4 g6 e3 g7 a3 h5 f4 c3 g3 Kf3 e2 Kg4 e1B h6 a4 Ra2 f3 Be3 g2 Qb3 f2 Bf4 c6 Bd3 f1Q Bc2 Na6 Bg3 Nc7 Kh5 Bb7 Bf4 Na8 Bb1 Bh4 Ra1 a2 Qc2 a3 Nh3 g1B Bg5 Bh2 Rg1 Qg2 Nf2 Qa5 Re1 Qb5 Re4 Nf6+ Kg6 Qc5 Rg4 Ne4 Kh5 Nd2 Re4 Kc8 d7+ Kc7 d8R Kb6 d6 Qd5 d7 Bfd6 Rh8 Kc5 d8Q Bdf4 Qd7 Bb8 Qd1 Bbd6 Bd3 Bb8 Rc1 a1N Qc2 a2 Rg1 Nab3 Be2 a1Q Qc7 Nc1 Qf7 Qf3+ Rgg4 Qg2 Bd3 Qa5 Be2 Qa3
3RQR2/B4nbP/P1b4r/5k1N/pPP3N1/1K1P1r2/p1pQ1r2/qR1nb3 w - - 0 1 illegal: No possible last move, all moves rejected
2R1nK1r/2nNBP1q/4PBr1/3b3p/1PP2n2/pQ1B1N2/P1p2k2/2Q3bb w - - 0 1 illegal: No possible last move
1N3q2/8/b1BnQ1rN/N1PR1qb1/PQ1pP1p1/2P1p1P1/Kq3k2/b1n4R w - - 0 1 illegal: No possible last move
1Q1K2q1/qr5P/P2RR1P1/Pb1Q2NB/p4pQ1/r1n2nP1/rk1p3B/5q2 w - - 0 1 illegal: No proof kernel
q1B3Q1/1P2P1Rr/1Kq5/P2P2Rb/p4Np1/1n1p1qn1/b4P1b/kNN1Q3 w - - 0 1 illegal: No proof kernel
1Q2KB2/Q6r/r1P1Q3/2r3p1/1R1bp1P1/1PpqNb1k/p1PP4/R1N1rb2 w - - 0 2 legal: proof: h4 f5 a4 d5 h5 b5 axb5 c5 e3 f4 Ke2 f3+ Kd3 Nf6 Kc3 Nc6 Be2 fxe2 bxc6 g5 e4 dxe4 Ra5 Ng4 Ra2 Ne5 Ra1 Ng6 hxg6 Qc7 Rh3 Qd7 Rh1 Qd8 Kc4 e1R Kb5 a5 f4 h5 f5 e5 b3 Ke7 f6+ Ke6 g7 Kf5 g8Q h4 g3 c4 f7 e3 Bb2 h3 Ra2 c3 Ra4 e2 Ba3 h2 Rb4 Bg7 Kc5 a4 f8Q+ Bf6 Qgf7 Rh7 Qa7 Ba6 Qg8 Rf1 Qe1 Qd3 Qgb8 Rf4 Kb6 Kg4 Kc5 Bc4 Kb6 Bg7 Kc7 Rd4 Kc8 Rd5 Kc7 Rc5 Kc8 Qf5+ Kd8 Qd3+ Ke8 Bf6 Nf3 Bh8 Nd4 Kh3 g4 Bf6 Bb2 Bh8 Na3 Bg7 Rg1 h1B Rf1 Bb5 Nc4 a3 Ne3 a2 Ba3 Bg2 Qb1 e1R Ne2 Bh8 Qd1 Bg7 Nc1 Bf3 Qe2 e4 Rg1 Qd4 Qc4 Qd3 Qe6 Bd4 Ra4 Rf5 Bf8 Rc5 Rb4 Bc4 Qg7 Ra3 Qga7 Ra6 Qbb6 Rf1 Qbb8 Qe2 Nd3 Ra1 Rg2 Rh1 Rg1 Bb5 Ra1 Re1 Nd5 Qe3 Nc1 Bf1 Rb5 Be5 Rb4 Qd3 Ne3 Bd4
2N3r1/1bBQP2P/1B3pp1/1pq1pPnB/1RR5/1b1P4/1rpk1KPQ/3r4 w - - 0 1 legal: proof: c4 h5 b4 b5 d4 a6 Qd3 h4 Qh7 h3 Nc3 bxc4 b5 Bb7 b6 Bc8 Nb5 axb5 Qxh3 Ra4 Qh7 Ra8 d5 e6 d6 Nc6 Qh5 Nb4 Qh7 Nd3+ Kd1 Be7 dxe7 d5 Rb1 d4 Ra1 Kd7 Kd2 Nc5 Kd1 d3 Ke1 d2+ Kd1 Nd3 exd3 Rb8 Ke2 Ra8 h4 Kc6 f4 Kc5 a4 Kd4 b7 Kc3 b8B d1B+ Kf2 c5 h5 e5 a5 f6 h6 g6 f5 Ba4 a6 Bb7 a7 Qd7 Ne2+ Kc2 Bc7 c3 Be3 c4 Nf4 Qe8 Rh4 Bb3 Beb6 Qc6 Nd5 Kd2 Be2 c2 Rc1 c3 Bh5 Qc5+ Rd4 Rc8 Rb1 c1R a8Q c2 Qa7 Ra8 Rb2 Rd1 Rb1 Ba4 Rb4 Bb3 Rc4 Bc8 Qb7 Ra2 Qc6 Bb7 Qd7 Rb2 Rb4 Qd6 Rdc4 Qc6 Bd4 Qd6 Nb6 Qc5 Nc8 Bd5 Qg7 Bb7 h7 Nh6 Qf8 Nf7 Qg7 Qa7 Qh6+ Ng5 Bdb6 Qa3 Be2 Qa7 Qh2 Rg8 Bh5 Qa3 Ra4 Qd6 Rab4 Qc5+
8/1Nb1k3/B3qq2/n2pQPP1/rn3PP1/2RP4/RK1BqrQq/Rb1rb3 w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 a4 b3 axb3 Na3 c6 Nb5 cxb5 Rh6 b4 Rh4 Na6 Rh1 Nb8 g4 d5 a4 h5 f3 e5 a5 b5 a6 h4 a7 h3 Bg2 h2 Ba3 b2 Bh3 b1R Ke2 e4 Ke3 b3 Kd4 b4 Qe2 b2 Qd3 e3 Qb3 e2 Bf1 e1B Qa2 b3 Kc3 Nc6 Bb4 Rd1 Nh3 b1Q Ba6 b2 Nf4 Nge7 Nd3 Na5 Nc5 Nec6 Nb7 Bd6 f4 Bc7 Rf1 h1Q Rf3 Rh2 Rd3 Rf2 Rg3 Rb8 a8R Qh2 Ra7 Ra8 Rh3 Nc4 Kb3 Bd7 Rc3 Qf6 d3 Qc1 Ba5 b1Q+ Qb2 Qe3 Bb4 Qbc1 Qa2 Nb6 Ba5 Qcd2 Kb2 Qee2 Bc4 Na4+ Ka3 Qde3 Rb3 Bb6 c3 Nb2 Bb5 Qc2 c4 Rg2 c5 Ke7 Bc3 Nb4 c6 Qcf2 c7 Qee6 c8Q Qf3 Qc4 Bc7 Qe4 Be8 Bc4 Ba4 Qe5 Qe4 Bd4 Qf3 Rc3 Bc2 Be3 Bb1 Ra4 Ra5 Ba6 Nc4+ Kb3 Qf2 Qc2 Qd2 R4a2 Ra4 Qb2 Qf2 Qe2 Na5+ Kb2 Qf3 Bd2 Qf2 Qf1 Qe2 Qh1 Rf2 Qf3 Rc1 Qg2 Rd1
q4r1K/k2P1q2/P2p1b2/n1Pr4/1Bq2R2/2QrBB2/QqnPb2P/2R2Nb1 w - - 0 1 illegal: No possible last move
Q7/N2n1b2/1bNk1r1P/b3r3/1p2RP2/nPP3b1/QrR1P3/B1bNbK1q w - - 0 1 illegal: No proof kernel
b1Nn2kn/PbpP1b1r/2PN1r1B/4q3/2b1Q3/2PP1R1K/1rBr3b/Q3N3 w - - 0 1 illegal: No proof kernel
2n2K2/2n1B3/RRP4B/bnPQ1q1P/B2p2nr/Pr1N1Q2/3P1q2/knn2b2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 hxg4 Nc3 c6 Nd5 c5 bxc5 Rh6 Nb4 axb4 Be2 Rh3 Bf1 Rh8 Ke2 Kf7 Kd3 d5 Kd4 e5+ Kd3 b5 h4 g5 c4 e4+ Kd4 e3 Ke5 b3 f4 e2 a3 e1Q+ Ne2 b2 f6 b1N c6 d4 f5 g3 Rg1 g4 Qa4 g2 Ra2 g3 Ra1 b4 Qb5 b3 Ra2 b2 Qa6 Qf2 Qb5 Nc3 Qa6 b1N Rh1 g1N Rb2 g2 Qa5 Qd7 Rb6 Ne7 Bb2 Ba6 Nc1 Nc8 Nd3 Nb5 Bc3 Nh3 Bb4 g1N Be7 Ne2 Rg1 Rh6 Rg8 Nc1 Be2 Ra7 Bd1 Rb7 Ba4 Rh7 Bd8 Bb4 Be7 Nf4 c5 Nd5 Rh8 Ne3 h5 Rg7 Rg8 Rg4 Rh8 Bc3 Qb4 Rh4 Rh7+ Ke8 Qb3 Ba5 Qd5 Ng4+ Ke4 Qg1 Kf4 Qe1 Kg5 Qf2 Kg6 Qe6 Bd6 Qd7 f7+ Kd8 Bf4 Ke7 Kg7 Qe6 Bh6 Qd7 Qb3 Qd5 f6+ Ke6 Kf8 Kf5 Ke8 Ke4 f8Q Qg5 f7 Qgf5 Qd1 Kd5 Qd6+ Kc4 f8B Re7+ Kd8 Re3 Ra7 Reh3 Ke8 Rg3 Nf4 Rf3 Be7 Rb3 Ne6 Kd3 Qf3+ Kc2 Nf4 Kb2 Nd3+ Ka1 Qd8 Bb7 Qdd5 Na6 Qf7 Nac7+ Kf8 Ba6 Ra8 N5c3 Ra7 Bc4 Raa6 N3b5 Qd5 Qg6 Qff3 Qg5 Ne5 Bf1 Nd3 Qf5+
1R1q2BR/rnPqBr1p/2QN1Q1B/b2bn2P/5P1K/P5q1/r1P3r1/2qk4 w - - 0 1 legal: proof: e4 a5 b4 f5 f4 c5 Nc3 axb4 Nb5 g5 Nd4 c4 exf5 g4 Ndf3 c3 dxc3 gxf3 c4 Ra5 c5 Ra8 Kf2 Kf7 Kg3 Kf6 h4 e5 h5 d5 a3 b5 c6 e4 c7 b3 Bb2+ d4 Bc4 e3 Rh3 e2 Qf1 e1Q+ Qf2 b4 Ra2 Be6 Rh1 Ne7 Kg4 Bd5 g3 Ng6 Rh4 Na6 Qe3 f2 Qe4 f1R Kh3 Ne5 g4 d3 Ba1 b2 Nf3 b1R Qd4 d2 Rb2 d1Q Ng5 b3 Nf7 Nc5 Nd6 Rf2 Qc3 Rg2 g5+ Ke7 g6 Kf6 g7 Ra7 g8Q Nb7 Qg4 Be7 Qe2 Rf8 Qef3 Rf7 Rg4 Rc1 Rb1 b2 Rg8 Qe3 Kh4 Qdd4 Nb5 Bb4 Nd6 Ba5 Ba2 Qa4 Rh8 Qad7 Qc6 Qb3 Qfc3 Rf1 Re1 b1Q Bb2 Qa1 Rb1 Re1 Qd4 Qf3 Bc3 Qe3 Bb4 Qac3 Rb3 Ra1 Qdb6 Qc1 Rb1 Ke7 f6+ Ke6 Bb3 Ra2 Bc4 Re7 f7 Kf6 f8B Rf7 Bh6 Q3e3 Nc8+ Kf5+ Be7 Ke4 Nd6+ Kf3 Bb3 Ke2 Qd4 Nc4 Qf6 Ne5 Bc4+ Kd1 Rb6 Nc5 Rb8 Nb7 Qf5 Be6 Bd5 Rfg7 Qf6 Bg8 Bf7 Qf3 Bg6 Bd5 Bf7 Qd3 Bg8 Rf7 Qf5 Qb3 Qf6 Qg3#
6qk/1P3Bpq/3b3R/1Pnb1K2/1NB1nBQP/4rqP1/Qb1PN2q/1b2r3 w - - 0 1 illegal: No possible last move
2k1qqr1/1r1bbQ1r/Pp1R2N1/n5B1/1pP1Qbnn/1P1N1P1K/3P1Q2/1R6 w - - 0 1 illegal: No proof kernel
B4q2/2P1NN1K/1kPr2pp/2n2q2/1PRQ3P/nN2Q1bP/b1b2Br1/1r3q2 w - - 0 1 illegal: No proof kernel
QN1k3q/r2B3R/PP1Q1b1b/2K2p2/nQ1p4/b1P2P2/q2P1qrR/2N2nr1 w - - 0 2 illegal: No proof kernel
R2r3K/B3N1P1/N1RP4/bb3Qr1/b2pQ1P1/p3q3/1bbPknP1/2rn2R1 w - - 0 1 illegal: Other
k1N3b1/qp5B/QK1Q2bp/1PrQr2R/1P2n3/3Pnbb1/Pn1N1B1P/3b4 w - - 0 2 legal: proof: e4 d5 exd5 a5 b4 g5 c4 a4 f4 gxf4 Na3 Qd7 Rb1 Qc6 Rb3 Qb5 cxb5 axb3 Ke2 Kd7 Kd3 f5 Kc4 e5 g4 c5 d6 h6 g5 f3 g6 f2 g7 b2 Qh5 b1B Bd3 f1B Qd1 e4 Qg4 e3 Be2 Bg2 Nh3 Ne7 g8Q Na6 Qe4 f4 Nc2 f3 Bd1 f2 Re1 f1B+ Qd3 e2 Ng5 Bf3 Nd4 Nf5 Kc3 c4 Qg6 Nc5 Kb2 c3+ Ka1 c2 Bb2 Bg7 Bc3 Re8 Kb2 c1N Bc2 Be5 Qe4 B3g2 Qf3 Bg3 Ne4 Kd8 d7 Kc7 d8Q+ Kb8 Qa6 N1d3+ Ka3 Nb2 Rd1 e1Q Qe7 Be6 Nc6+ Kc8 Bd4 Be2 Qf6 Bg8 Na7+ Kb8 Bf2 Bh1 Rc1 Bd1 Qh5 Bhf3 Bd3 Ne6 Rc5 Ng5 Qfc6 Qe3 Re5 Qb6 Qd6+ Qc7 Qf7 Ne3 Qfd5 Re7 Rf5 Re6 Bc2 Re5 Kb3 Ne6 Rh5 Nc5+ Kc3 Nbc4 Kd4 Nb2 Bd3 Bbc2 Nf6 Bb1 Bh7 Bbe4 d3 Bg6 Qdb6 Qd8 Ne4 Qd6 Nd2 Ne4 Nc8 Qd8 Qbd6+ Qc7 Qac6 Ra3 Na7 Ka8 Qb6 Qb8 Qa6 Nc3 Kc5 Ne4+ Kb6 Rc3 Be1 Rc8 Bf2 Rc5 Nc8+ Qa7+
N4n1n/2Pq1Q2/K1kP1b1p/R1b1r2b/2b1bRB1/r4pBq/PR3PP1/1Q6 w - - 0 1 legal: proof: e4 a5 h4 d5 exd5 g5 hxg5 a4 b3 axb3 Na3 c6 Nb5 cxb5 Rh2 b4 Rh6 Bd7 Rh1 Bc8 Ke2 Kd7 Kd3 e5 Kc4 f5 Kb5 f4 c4 e4 d4 h6 g6 f3 c5 b2 g7 b1Q d6 e3 d5 b3 Bd3 e2 Bb2 e1B Rh3 Ne7 g8R Ra3 Be5 b2 Rg4 Bc3 Bc2 Ng6 Bg3 Bf6 Rf4 b6 Bb3 Qf5 Ne2 b1B Nd4 Be4 Rh5 Qh3 Rb1 Qe7 Rb2 Ba6+ Kb4 b5 Ne6 Rh7 Nc7 Nh8 Qb1 Bg6 Re5 Bh5 Na8 Qee6 Ba4 Re7 Ka5 Qeg4 Ref5 Re5 Kb6 Qg7 Bc2 b4 c6+ Ke8 c7 Kd7 Bd3 b3 Rg5 Qe7 Bf5+ Qe6 Bg4 Bc4 Rd2 b2 Kb7 Ke8 d7+ Ke7 Re2 Kd6 d8Q+ Nd7 Qe8 B8e7 Qeg6 Nf8 Qf7 Kc5 Rgf5 Kb5 Rc2 Bc5 d6 Qd7 Qc1 b1B Rb2+ Rb3 Qg1 Bc2 Qb1 Be4+ Kb8 Bb4 Ka7 Kc6 Rg5 Re6 Ra5 Re5 Qd3 Ra3 Qb1 Bcd5 Ka6 Bc5 Rb8 Be6 Rb2 Bc4+
3R2Q1/2NpP1nP/1BQPp3/R4b2/1Pbq4/R1bkPrr1/b1q3N1/K3bn2 w - - 0 2 illegal: No possible last move, all moves rejected
5r2/n1Pbrbp1/1BR1Q1PQ/1N2KPN1/p2rB2r/P3Pnkq/4q3/B4n2 w - - 0 2 legal: proof: e4 f5 exf5 e5 Ke2 c5 b4 cxb4 Ke3 e4 Qe1 Bc5+ Ke2 e3 Kd3 e2 Qd1 Be3 dxe3 h5 g4 Kf7 a3 Qa5 g5 Qb6 Ra2 Ke8 Kd2 Qd8 Rb2 Kf8 Rb3 Rh6 Rc3 Ke8 Rc4 Rh8 Rg4 hxg4 Kd3 Kf7 Ke4 e1Q c4 d5+ Kf4 a5 h4 b5 f6 Kg6 f7 Kh5 f8B d4 c5 d3 c6 d2 f3 a4 g6 b3 Ke5 g3 f4+ Qe2 f5 Kg4 h5 b4 h6 b2 h7 b3 Nh3 g2 Bb4 g1N Bc3 Nf6 Nf4 Ne4 Nd3 Kg3 Ba5 Bd7 Bb6 Qh4 Qc2 d1R Ne1 Nd2 Bg2 Qh3 Qc4 Nf1 Nc3 b1R Nb5 b2 Nf3 Rd4 Ng5 Ra7 Bd2 Rf8 h8Q Ra1 Qcg8 b1B Qe6 Ba2 Bc3 Rad1 Qh6 Rh4 Be4 Rd4 Ba1 Rb7 Qe7 Bf7 Rh2 Bde8 Qe6 Re7 c7 Bd7 Bd5 Qe1 Rc2 Qe2 Rc6 Nf3+ Kd6 Rc4 Be4 Rb4 Rc1 Nc6 Rc4 Na7 Rc6 Ng1 Kd5 Rd4+ Ke5 Nf3+
1q1B4/k3bP1n/P4N1r/pRr3p1/P1bP1R1r/QNbKPn1q/4N3/1Q4b1 w - - 0 1 illegal: No proof kernel
7r/k1n2N1N/Br3b1P/1q2rP1p/q1Q4b/KQn1P2P/bPQ2pR1/3r2B1 w - - 0 1 illegal: No possible last move, all moves rejected
1r6/1QnPN3/3QB2q/3bPQ2/3q3p/1rr1pnBb/PbK2PRP/3rNk2 w - - 0 1 illegal: No proof kernel
2K1k1B1/1n2qp1b/5QPb/2R1nN1p/1P3rBn/RQ2qP2/Q3P1qP/2nr4 w - - 0 2 legal: proof: d4 c5 dxc5 e5 a4 g5 Kd2 g4 Nc3 g3 Nb5 Bd6 Nd4 Bf8 f3 b5 axb5 exd4 Ke1 Bh6 Be3 Bg7 Bf2 gxf2+ Kd2 Bf8 Kd3 a5 Kc4 h5 Kd5 d3 b4 a4 g4 a3 c4 d2 c6 a2 c7 d6 c5 Na6 Kc6 d5 b6 d4 g5 d3 b7 Bf5 b8Q Nh6 Kb7 Rg8 c8B Ng4 c6 Ne5 c7 Bh7 Bg4 Bh6 Qa7 Qe7 Bfh3 f1Q Qb3 d1Q Qd4 Ra7+ Kc8 d2 Qb6 Qc2 Qf6 d1N Bf5 Qb1 Bhg4 Qe4 Nh3 Ne3 Nf2 Ng2 Nd1 Nh4 Ne3 Qg2 Rhc1 Nc5 Rc4 Nb7 Rc5 Qd4 Bc2 Qe4 Nf5 Qe3 Ra5 Rf8 Nd4 Bg6 Bh3 Nc5 Kb8 Rg8 c8Q+ Qd8 Rc1 Rd7 Ra3 Nb7 Be4 Bf5 Rc2 Be6 Bh7 Bf5 Rc7 Rg7 Bg8 Bh7 Nf5 Rd1 Rc3 Kf8 Rc4 Qe8 Kc7 Rg6 Qd7 Qe7 Kc8 Rg7 Qd2 Ke8 Rc5 a1N Qb1 Nb3 Qda2 Nc1 Qbb3 Rg6 Qg7 Rgd6 g6 R1d4 Qf6 Rf4 Bg4 Rd1
q1KR2rn/2B3P1/b1qQ3P/2n3pR/2Pq3N/Rrk4N/pb2qQPP/2r5 w - - 0 1 illegal: Other
4qN2/pr1P2r1/3b3P/Q2R1p1r/4PQbR/B1K2nnR/4qP1P/1k1rbB2 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 h5 gxh5 d6 a4 d5 Nd2 Be6 Ndf3 Bc8 axb5 dxc4 d5 Bb7 Nd4 exd4 Ra5 Ba6 Ra1 Bc8 Kd2 Kd7 b4 Kd6 e4 Ke5 d6 c5 b6 g5 b5 c3+ Kc2 g4 b7 d3+ Kb3 Kd4 b6 g3 Ra6 c2 Ba3 c1R Bh3 d2 Bf1 g2 Bb5 c4+ Kb2 Kd3 Be8 c3+ Kb3 c2 Bc6 Ne7 Nf3 g1R Nh4 Qe8 Kb2 Bg4 d7 Nf5 Ng6 Bd6 Nf8 Ng3 Qe1 d1Q Qa5 f5 Bd5 Nc6 b8R Qf3 b7 Qe2 Be6 Rcd1 Bc4+ Kd4 Rd8 Ne5 b8Q Nf3 Rb6 Rh7 Rb3 Rg7 Re3 c1B+ Kb3 Bd2 h6 Be7 Qf4 Be1 Rb8 Bc5 Rb5 Bd6 Rc3 Rg2 Rg1 Rb8 Re3 Rb7 Bd3 Qd2 Bf1 Qe2 Rc3 Nh5 Re3 Rg3 Rg2 Rh3 Rg3 Rh4 Rh3 Ng3 Rc3 Rh5 Rh4 Rd2 Rc5 Kd3 Kb4 Bc7 Rd5+ Kc2 Rb6 Kb1 Kc3+ Ka2 Rbb5 Bd6 Rb3 Rd1+ Rd2+ Ka1 Kc2 Ng5 Rf3 Nh1 Rfh3 Ng3 Kc3 Nf3 Kc2 Bb4 Kb3 Kb1 Rd5 Rd3+ Kc4 Rd2+ Kb3 Bd6+ Kc3 Rd1+
Bq3b1k/1q3p2/KB5b/3p1r1Q/bb1qPnQ1/B1P4P/Pn1P1R1N/4rR2 w - - 0 1 illegal: No proof kernel
qRQ1n2r/1pQ5/1b1rP2p/B2N2Pr/3P3K/kbrnP3/1NB4P/4n1qN w - - 0 1 illegal: No possible last move
B4b1r/qNN1Pkp1/B1Q3br/R4N2/1np4Q/2P2P2/2P2qPq/K4qrn w - - 0 2 illegal: No possible last move, all moves rejected
Q5B1/2r1q2p/1brr2PP/5bpN/K1Q3Pr/R1Pq4/qB1knq1P/4N1B1 w - - 0 1 illegal: Other
b2B4/2qn3p/b3k1P1/bB1R2PP/rq5R/1KpN3n/2PP1b1n/2R1n1QQ w - - 0 1 legal: proof: f4 b5 a4 d5 axb5 a5 g4 Bf5 e4 dxe4 g5 Ra6 g6 Re6 Nc3 Re5 Nd5 Bc8 Nf6+ gxf6 Ra3 Be6 Ra1 Rg5 fxg5 Bc8 b4 Kd7 h4 c5 b6 e5 h5 e3 b7 f5 b5 e2 b6 a4 Nf3 c4 Rg1 f4 Bb2 f5 Rg3 c3 Nd4 a3 Rb1 f3 Rg2 f4 Ba1 e4 Nb3 a2 Na5 Ne7 Rg3 Qc7 Rg4 Nd5 Rg3 Ke6 Rg4 Nd7 b8Q Ba6 b7 Bb4 Bb2 a1Q Rc1 Qb1 Nc6 Ba5 Ba3 Qb4 Qa7 Ra8 Kf2 e1N Bb5 e3+ Kf1 f2 Ke2 f1N b8R Bb7 Rd8 Nh2 Ne5 Bc6 Qd4 Ra7 Rh4 Ba8 Qe4 Ra6 Qh1 Ra7 Rb1 Ra6 Nd3 Ra7 Qc1 f3+ Kd1 f2 Ke2 Qbc4 Be7 Nf4+ Kd1 Nh3 Ke2 Qb3 Qd1 Qb4 Rc1 Nef3 Qdg1 Ne1 Rf8 Ra6 Bd8 Ra7 Rf5 f1B+ Kd1 Ra6 Rd5 Ra7 Rb1 e2+ Kc1 Ng2 Ra1 e1B Rb1 Bf2 Ra1 Qe7 Kb1 Ne1 Ka2 Qb4 Rc1 Bg2 Rdd4 Bgb7 Rd5 Ba6 Be7 Bc8 Ba4 Bab6 Bd8 Ra5 Rb1 Ba6 Rc1 Qg4 Kb3 Qd4 Bc6 Ra4 Bb5 Ba5 Ne5 Qe4 Nd3 Qb4+
1BN5/N2Q4/pbq1Kp2/P1rQ3q/1Pbr1Pn1/1PP2nB1/N1b1k2p/1r4R1 w - - 0 2 illegal: No proof kernel
1B5q/1B1pP2p/b1P2n1q/2RP1N1N/2r1r2b/q2PQ3/1r1pPQn1/2k2K1N w - - 0 1 illegal: Other
n1QRb1rN/1q3P2/2Q5/1n1pB1nP/1p2P2b/kp1qN2P/r2PR3/3RK1q1 w - - 0 1 illegal: No possible last move
4B3/r1N2bn1/1k1Nq1p1/1N1q1R1Q/n4PbP/P4pK1/1b2pPPr/rQR5 w - - 0 2 illegal: No proof kernel
2N5/pp1NP1q1/2rnrrQ1/BP4P1/2Qn2RK/Pp1bk3/bN4P1/4rrR1 w - - 0 2 legal: proof: d4 g5 f4 gxf4 h4 e5 dxe5 Bh6 e3 Bg5 hxg5 c6 b4 c5 Bb5 c4 Ba4 Qc7 Bb3 cxb3 Qf3 Qa5 Qd1 Qd8 Kf2 Ke7 c4 Ke6 b5 Kf5 e6 Ke4 e7 h5 e8N f5 a3 d5 c5 h4 c6 h3 c7 f3 Kg3 h2 Qe1 f4+ Kf2 d4 Qc3 d3 Qf6 d2 Qg7 d1B Qh6 Nc6 Qh7+ Bf5 c8Q Qe7 Qc7 Bc2 Bd2 Rc8 Ba5 Bd3 Qg6 Nd4 Qc4 Qg7 Nd2+ Ke5 e4 Nf6 Bc3 Rh6 Nd6 Ne8 Ba5 Rc6 Nc8 Re6 Re1 Bb1 Re3 Ba2 Rd3 Nc6 Rd8 Nd6 Re8 Nd4 Rh8 Rh3 Rh4 Rg3 Rg4 Rh3 Ne2 Rh6 Rg1 h1R Ng3 R6h2 Rb1 Rh6 Nh5 Re1 Nf6 Rh8 Nb6 Rc8 Ra1 Rc6 Nc8 Re3 Rg1 Re1 Qc2 Ne2 Qc1 Kd4 e5 Kd3 Nd7 Nd4 Nc4 Be4 Rf1 Bf5 Nb2+ Ke4 Kg1 f2+ Kh2 Rf6 Kh3 Re6 Qc5 Ke3 Qc2 f3 Kh4 Bd3 Rg1 f1R Qc3 f2 Qc4 Rf6 e6 Re2 e7 Rfe1 Rf4 f1R Re4+ Kf2 Rg4 Ree6 Qh5 Ke2 Qg6 Ke3
2bB1N2/2q1rp2/1pb5/Q1pP1P2/Nr3P1n/1P1k1PnR/b4nQb/2QK3R w - - 0 2 illegal: No proof kernel
br2R2n/P1b4k/BBnr3r/1p1P1p2/2KQ3Q/p1n2P2/nP1PR3/BqN5 w - - 0 2 illegal: Other
nN1R2N1/1pb2rqP/2B1bQ2/1b1P1r2/kP4Pp/3p2RQ/K2n1bPR/7n w - - 0 1 illegal: No proof kernel
5N2/1Bp2nr1/r1nqQKR1/2kbq3/P4bP1/1p2p1NQ/NP1PPR2/n1n5 w - - 1 2 illegal: No proof kernel forced: bxDB
2q1bB1n/q1b1pp2/pr4Q1/P2q1NK1/2PP1RP1/B2Q1Nr1/n1P3k1/2qB4 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 c5 b3 c4 bxc4 g5 Ra3 h5 f4 h4 Rg3 hxg3 fxg5 Rh4 Bg2 Rh6 Bf1 Rh8 Ke2 Kd7 Ke3 Ke6 Kf4 b5 h4 a6 g6 b4 a5 e3 d3 g2 g7 b3 h5 b2 h6 e2 h7 e1Q Na3 b1Q Rh2 Nf6 g8Q Qb7 Rh4 Bd7 Be3 Bg7 Bc1 Nc6 Nh3 g1Q Rh5 Nb4 Kg5 Ke5 Nb1 Qbc8 Nc3 Be8 Nd5 Rb8 Ne3 Rb6 Ba3 Nfd5 Be2 Na2 Rh6 Nf4 Nf5 Qd5 Rf6 Ng6 Bf3 Qgc5 Ng1 Q5c7 Be2 Qa7 d4+ Ke4 Nf3 Qf1 Qd2 Qc1 Bd1 Bh6+ Kh5 Be3 Qd3+ Kf4 Qg7 Bd2 Kh6 Bb4 Qg8 Bd6 Qg7 Bc7 Kh5 Rf8 h8B Rb3 Qg8 Rb6 Bg7 Nh8 Qh7 Rg8 Bf8 Rb3 Re6 Rg6 Re1 Rgb6 Rf1 Rc3 Qg6 Rcb3 Kh6 Rc3 Ne3 Kg3 Rf2 Qb1 Nf5+ Kh3 Rf1 Kg2 Kg5 Rcb3 Ng1 Qc1+ Rf4 Re6 Nf3 Re3 Nd2 Rg3 Nf3 Rb6
1K2B3/1bn4p/Pp2PQq1/Q1Np2nR/BPr3P1/2q3BP/3n4/kN1nbq2 w - - 0 1 legal: proof: f4 a5 d4 g5 b4 gxf4 a3 e5 dxe5 a4 c4 b6 c5 Qf6 c6 Ra7 Ra2 Bb7 Rb2 Qd8 Rb3 axb3 a4 Bc8 Bd2 Ne7 Bc1 Rb7 cxb7 Ng8 Kf2 Ke7 Kf3 Ke6 Ke4 c5 g4 f5+ Kd3 Kd5 a5 c4+ Kd2 Kd4 e4 d5 h3 f3 e6 b2 e7 f4 e8B f2 e5 f3 e6 Bh6+ Kc2+ Bd2 Bg2 c3 Kb3 f1Q Ka4 f2 Bf3 Na6 b8Q c2 Qa8 Bb7 Ne2+ Kc4 Ng3 Be1 Be4 Nh6 Qf3 Nf7 Qf6 Ng5 Bf4 c1Q Bc2 Nc7 Ne4 Qd2 Bd6 Qc3 Nc5 Qe7 Qa7 Qg7 Bg3 Qg6 Bd1 Qg2 Qa8 f1N Rh2 Qgf3 Re2 Nd2 Re5 Qf1 Qa6+ Kd4 Qb5 Rg8 a6 Rg7 Qa5 Rd7 Bh4 Rd6 Bg3 Rc6 Nd7 Rc4 Nc5 Nde4 Bc2 Nf2 Bb3 Na8 Kb5 Nd1 Nd2 b1N Ba4 Bc8 Kc6 Bb7+ Kd7 Nc7 Kd6 Qa1 Kd7 Kc3 Kd8 Kb2 Kd7 Bc6+ Kc8 Bb7+ Kb8 Qa3 Rf5+ Qc3 Re5 Ka1 Rf5 Nf7 Rh5 Ng5 Nde4 Qd4 Nc3 Nd2 Nb1 Qc3
q5B1/Pnq3bQ/1pb4R/1kNN1pnK/2rn3B/4pPQ1/NP2qPP1/6q1 w - - 0 1 illegal: No proof kernel
K7/2n1P1k1/1R6/2QpN3/n4r2/2pPBPP1/QpBBPp1b/b1qbRrn1 w - - 0 1 illegal: No proof kernel
K4N2/n1BPqpPp/2Q3NP/1NQq2n1/r3r1p1/3b1R1p/k2bPP2/b4B2 w - - 0 2 illegal: Other
B2b1nq1/1b1pqR2/1PP5/1b1P4/1Pr1Q2p/B1pP1KB1/1pR2r2/k1nQN3 w - - 0 1 illegal: No proof kernel
1q4b1/1P4R1/n1r3rp/1pB2BbQ/p1N2N2/1PpQnbkP/P1QP4/5q1K w - - 0 3 illegal: No possible last move
r1K2B1k/P1p5/1pR2q1N/bPnb2n1/1pp1P1B1/q1q3Q1/2PNNP2/4q2Q w - - 0 1 illegal: No possible last move
5NK1/rk1P2pp/7p/1P2QN1P/3BqQPn/1bR5/BpqbnP2/1n4Nn w - - 0 1 illegal: Other
R3N3/1PbR1nP1/qn1p2kN/ppQ1r3/Bq3q2/P2P3p/1r3P1q/K2R1Q2 w - - 0 1 illegal: No proof kernel
8/2nRnP1N/4k2p/1Rp2NQ1/1bbp1KrP/3r4/PpRP1n1P/1B2bQb1 w - - 0 1 legal: proof: e4 b5 c4 bxc4 b4 f5 exf5 a5 g3 c6 b5 Qc7 Ba3 Qf4 Bb4 Qh4 gxh4 axb4 Ke2 Kf7 Ke3 g5 f4 d5 f6 e5 f5 e4 b6 h6 b7 d4+ Ke2 e3 Kf3 b3 Bd3 g4+ Kf4 c3 Ne2 c2 Ng3 c1N Re1 b2 Nc3 e2 Nd5 Be6 Bb1 Na6 b8R Nc7 Rb5 Ne7 Qa4 Ra6 Qa5 Rg8 Rf1 e1B Rg1 Ke8 f7+ Kd7 f6 Rg7 Nf5 g3 Rf1 g2 Rf2 g1B Rg2 Rg8 Rg7 Nc8 Rh7 Bb4 f8Q+ Bf7 Rg7 Ke6 Rh7 Rg3 Rg7 Bg8 Rd7 c5 f7 Ne7 Qg7 Bh7 Nf6 Rd3 Qg5 Ra8 Qa4 Rg8 Qd1 Bg6 Nh7 Bh5 Ra5 Bf3 Rb5 Bd5 Qf3 Bc4 Qf1 Ne2+ Ke4 Ng3+ Kf4 Nh1 Bc2 Ba5 Rc1 Bb4 Bb1 Nf2 Rc2 Rg6 Qh5 Rg2 Qg5 Rg4+
n1Bb3r/RRpP1N2/1Q4bP/2nbN2k/1p4p1/1PPNQ3/n1PK1p2/2r1n3 w - - 0 1 illegal: No proof kernel
1K2n1R1/B1b1b1PN/pn1pp1N1/1k1r3R/2n2prQ/1N1b3P/P1b1PP2/4Q3 w - - 0 3 legal: proof: c4 g5 b4 c5 bxc5 d6 d4 Bd7 d5 Qc8 c6 Bh3 c5 Qd7 c7 Qc6 dxc6 Bc8 h3 g4 Qd2 Nf6 Qf4 Ng8 Qh2 g3 Kd1 Na6 Kd2 Nb8 Nf3 gxh2 g4 h5 g5 Nf6 Bg2 Nd5 Ng1 Nf6 Bf3 Ng8 Bg4 hxg4 Ke3 f5 Kd4 b5 Kd5 b4 g6 f4 g7 g3 Bb2 g2 Bc1 b3 Nd2 b2 Ngf3 b1N Re1 g1B Rd1 h1B Nb3 Nd7 Be3 Ba6 c8N Nd2 c7 e6+ Kc6 Ngf6 Ne7 Nb6 Ng6 Rh4 Rac1 Bd3 Kb7 Rg4 c6 Be7 Ng5 Bh2 Nh7 Ndc4 c8Q+ Bd8 Rg1 Bhe4 Rb1 Bf5 c7 Bg3 Qb8 a6 c8Q Bh4 Qc5 Kd7 Qa5 Be7 Qh8 Ne8 Qe1 Rc8 Rg3 Rc6 Kb8 Rc5 Bd4 Kc6 Re3 Bf8 Re5 Rd5 Rc1 Bfe4 Rh5 Bfe7 Be3 Kb5 Bc5 Nc8 Ba7 N8b6 Rc2 Ne3 Rc7 Nec4 Rc8 Bc2 Rd8 Bed3 Rc8 Nf6 Rg8 Ne8 Nhf8 Bhf6 Qh6 Bd8 Nh7 Bfe7 Qg5 Rg3 Qf6 Rg4 Qh4 Bc7+
1rr1n1k1/q1p1p1N1/2PP4/6r1/Rp2R1rN/2N1Pr2/rP1p2P1/1nKQ1Q1B w - - 0 1 illegal: Other
r2Qq1b1/1PK1p2b/1pp2r2/RB1P1N1p/2P1PBr1/NQp3n1/4n1BP/4k3 w - - 0 3 legal: proof: b4 d5 f4 g5 c4 gxf4 b5 d4 b6 Bd7 a4 c6 a5 Bg4 Ra3 Bg7 Rg3 Be5 Rc3 dxc3 a6 Bc7 bxc7 b6 Ba3 Bc8 Bc1 Bb7 axb7 Qd7 Qb3 Qd4 Qd1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 c8B a5 g4 h5 g5 a4 g6 a3 d3 a2 g7 a1R e3 f3 Bh3 f4 Qe1 f2 Nd2 f1B Bce6 f3 Bef5 f2 Nb1 Nh6 g8Q Na6 Bg6 Nf5 Bg2 Rh6 Ke6 Nb4 Na3 Ng3 Nf3 Na2 Nd4 Qe8 Qd1 Kb4 Bd2 Nc1 Nf5 Nce2 d4 Ra2 d5 Rc2 Be4 Bh3 Bg2 f1B Qf8 Rc1 Qb3+ Kc5 Qh8 Rd1 Bc1 Rd4 Bd2 Rg4 Qg8 Qf7+ Kd7 Qf8 Kc7 Qe8 Bh7 Rf6 Qf8 Ng1 Bg6 Bd3 Qg8 N1e2 Ra1 Qf7 Qd8 Qe8 Nh4 Bf5 Bh7 Be6 Bc2 Bg8 e4 Kd4 Bf4 Bh7 Bd1 Kd3 Nf5 Bg8 Qb4 Bh7 Ba4 Bg8 Qb3 Bh7 Bd6 Kd2 Ra2+ Ke1 Bb5 Rg7 Bf4 Rgg6 Ng7 Be6 Nf5 Bf7 Nb1 Bfg8 Ra5 Rg5 Na3 Rg4
R3bQ2/QR1PB2N/n1PK2Np/4p1Nn/p3Prp1/P5p1/b1rb3P/1n3k2 w - - 2 3 legal: proof: c4 d5 g4 f5 g5 c6 b4 c5 bxc5 dxc4 f4 Qd3 g6 Qd8 Bh3 Qb6 Bg4 fxg4 f5 Qe6 f6 Qf7 gxf7+ Kd7 Kf2 Kc6 Kg3 Kb5 Kf4 a5 Ke5 g5 e4 a4 d4 h6 a3 g3 d5 c3 d6 Kc4 Ne2 b5 Qb3+ Kd3 Qe6 b4 Re1 g4 Qa2 c2 Bb2 c1N Nd2 b3 Rf1 Na6 Nf3 Bd7 Rb1 Rc8 Ng5 Be8 d7 e6 Bd4 b2 Nf4+ Kd2 Qc4 Na2 Ng6 Nc3 Qb5 Rc6 Qb8 Ke2 Qa7 Be7 f8Q Bd8 f7 Ba5 Rf5 Nf6 Bf2 Nh5 Be1 Rc7 Kd6 Rg8 Re5 Kf1 Rd5 e5 c6 Rb7 Rc5 Rb4 Rb5 Rc4 Rb8 Rc5 Ra8 Rc4 Ra1 Nb1 Bb4 Rc2 Bc5 Bd2 Ra2 Nc3 Bb4 b1B Rb2 Ba2 Bc5 Be6 Rb7 Rh8 Qg7 Bb3 f8N Nb1 Nfh7 Rf8 Bb4 Rf4 Qf8 Kg2 Ba5 Bg8 Bd8 Ba2 Be7 Kf1
4rnK1/3P3p/2Bp1p2/1Rb2Ppb/1P1P2PN/3rq1kp/Q1Q4R/3Rr1Nr w - - 2 3 illegal: Other
2B1k3/K2pP2Q/b1pQ3R/1prP1NPP/1NP3Qn/6nR/p1p2n2/3n1rq1 w - - 0 1 illegal: No proof kernel
5N2/1Q2b2p/2Qr1N2/R1p1R3/b1P1P1bP/1Pbnp1K1/2kPprRp/2q1B3 w - - 0 1 legal: proof: a4 d5 e4 b5 axb5 g6 Be2 g5 h4 Nc6 Bg4 Nb8 Bh3 g4 Ra5 gxh3 Ra2 Bd7 Ra1 Bc8 f3 dxe4 Ke2 e3 Kf1 e2+ Ke1 e5 Kf2 e4 Ke3 Nd7 Kd4 e3 Kc4 Ndf6 Kc3 Ne4+ fxe4 Qd6 Ra2 Qd5 Ra1 Qd8 g4 Ke7 b6 Kd6 Kd3 f5 b3 a5 b7 h2 b8Q f4 g5 f3 g6 a4 g7 f2 Qb7 f1B Nc3 Ke5+ Nd5 a3 Nh3 a2 Rg1 Bd7 Rg2 Ra6 Ba3 Nf6 g8R Qc8 Ng5 Nh5 Nf6 Ba4 Ne6 Be7 Re8 Rf8 Qc1 Rd6+ Kc3 Rf7 Nf8 Nf4 Bc5 Nd3 Bd4+ Kf4 Be5+ Kf3 Bg3 c6 Rg1 Bh3 Rg2 Bg4 Be1 Qc7 Ra8 Qc8 Ra5 Qc7 Re5 Qc8 Rb1 a1B+ Kc4 Bc3 Ra1 Qf5 Qa3 Qf4 Qc5 Qg3 Qcb6 c5 Q6c6 Qf2 Ra2 Qg1 Qcc8 Be8 Ra5 Ba4 Qcc6 Kf4 Bf2 Qc1 Be1 Rd8 N6d7 Kf3 Kd5 Rf5 Ke6 Kf4 Nf6 Rd6+ Kf7 Kf3 Kg7 Rf4 Kh6 Ba1 Kg5 Bd4 c4 Bc3 Bf2 Rd8 Rg1 Rd6 Rf1 Kg2 Bg3 Rf3 Rf2+ Kg1 Rg2+ Kf1 Rf2+ Ke1 Rg2+ Kd1 Be1 Bd7 Kh5 Kc2 Kg5 Rf5+ Kg4 Rf2+ Kg3 Bg4
kb3BQr/pbRQ2r1/1rB4R/P1q2pp1/K2p4/1PP1prP1/P2B4/4n1N1 w - - 0 1 illegal: Other
6Q1/1pb1p1PR/RK1b2p1/P1N1Q2n/1P2B3/rQ1p1nrp/2b1P1bP/6Bk w - - 1 3 legal: proof: f4 a5 g4 f5 b4 c5 d4 a4 Nd2 Qb6 Nb3 axb3 dxc5 fxg4 f5 g6 f6 Bh6 Bd2 Bf4 Bc1 Bd6 Nf3 Qc6 Ng1 Qd5 Bg2 Qf7 Bf1 Qg7 fxg7 Ra5 Rb1 Ra6 Ra1 Ra8 Kf2 Kf7 Ke3 Kf6 Kd4 Kf5 c4 h5 a4 g3 c6 Kg4 c7 g2 c5 b2 c6 b1B Nf3 Kh3 Qb3 h4 Be3 Bc2 Rg1 Nf6 Nd2 Nh5 Ne4 Rf8 Kc4 Rf3 Kb5 Rg3 Bf2 Be5 Bd4 d5 Nc5 Bd6 Kb6 Bd7 Be3 d4 c8Q d3 c7 Nc6 Qb8 Ne5 c8Q Nf3 Qcg8 Be8 Qd8 Bb8 Qdd5 Bc6 Qe5 Kg4 Rh1 g1B Bg2 Bf2 Rhd1 Be1 Bh1 Kh3 Bg1 Bd2 Rf1 Bf4 Qe3 Bfd6 Qe5 Nd2 Be4 Nf3 Ra2 Kg2 Rf2+ Kh1 Rg2 Rg5 Rg4 h3 Rh4 Rg3 Bf5 Nd4 Ra1 Bg2 Be4 Nf4 Rh7 Nh5 Rf1 Ra5 Rf6 Nf3 Na6 Rc5 a5 Rc3 Nc5 Rg5 Qb1 Ra3 Qbb3 Rg3 Kb5 Bdc7 Ra6 Bd6 Kb6 Bbc7+
k1b5/1nQ2bpq/5pRN/2p3PQ/PrP1pq2/1B1qnPN1/2r1P2b/K3B1B1 w - - 1 4 legal: proof: b4 d5 a4 h5 c4 a5 Qc2 axb4 Qh7 h4 Ra3 d4 Rc3 dxc3 Qxh4 Ra6 Qh7 Ra8 Kd1 Kd7 Kc2 Kc6 g4 b5 d4 Kb7 h4 c5 f3 e5 h5 f6 d5 Ra5 h6 Bd6 g5 Nc6 Be3 Ka8 Nd2 b3+ Kb1 b4 Ka1 c2 Nh3 Rb5 Ne4 Nge7 Bg1 Nf5 Nhf2 Na5 Bh3 Nb7 Ng3 Ne3 Ng4 c1Q+ Qb1 Qd7 h7 Rd8 h8Q Qf5 Qh6 Qh7 Qh5 Rb6 Nh6 b2+ Ka2 Bc7 d6 Bb8 Qd3 b1B+ Ka1 b3 d7 Rb4 Qd6 Qd2 Qc7 Bg6 Bg4 Bf7 Bf5 Qd6 Bd3 e4 Bc2 Qf4 Bd1 Re8 d8B b2+ Ka2 Re5 Bb3 Rd5 Qd6 Bd7 Ba5 Rd2 Qc7 Bc8 Rh4 Rc2 Rh3 Rb6 Be1 b1Q+ Ka3 Qd1 Qe7 Ng2 Qg4 Qc7 Nf1 Nd8 Nf5 Bce6 Rh6 Qdd7 Qh5 Nb7 Rg6 Qd3 Nh6 Bc8 Qe5 Ne3 Qg3 Rc3 Ka2 Rc2+ Ka1 Rb4 Qe5 Qcd6 Qe7 Qh2 Qd8 Bg3 Qd7 Qh4 Qc7 Bh2 Ng3 Qf4
1QR2bnQ/BK2q2r/pp1pB2k/1R1Pr2r/P2P1n2/1Pp4b/3QP3/3bN2r w - - 0 1 illegal: No possible last move, all moves rejected
3n1N2/kb2Q2R/3KRBQr/p3pp1r/bbP1Pb1P/QqqB1P1p/P7/5n2 w - - 0 1 illegal: No possible last move
5r1Q/1P1bRnBp/b2Np1bP/1BKp1rp1/3PP3/n2p1kb1/2P4Q/N3q1Q1 w - - 0 1 illegal: No proof kernel
3r2R1/2Q5/pB1R2Pb/5pq1/N1KnRr1p/3PpQ1P/P1brPrp1/nB5k w - - 0 1 illegal: No proof kernel
N6r/qPN2K2/2Qn2pN/b1r2B2/1pp2k2/pRP3rb/1P1Pp1Pp/4Q1Bn w - - 0 1 illegal: No proof kernel forced: bxDB
4bnK1/R1qNr1N1/1P3B1P/qRR3bP/1p4nP/Pk1B4/3q4/1nq2N1q w - - 0 1 illegal: No proof kernel
5n1n/Nk3r1R/2n1PB2/1n2NbP1/pP2R3/qP1KP1r1/B2N1r1B/4n2n w - - 0 1 legal: proof: h4 g5 c4 gxh4 a3 d5 cxd5 b5 Nh3 b4 axb4 Nf6 Ng1 Ng8 e4 e5 d4 Kd7 d6 Bh6 d5 Be3 fxe3 Ke8 Qd4 exd4 Ke2 Kd7 g4 c5 g5 h5 b3 f5 e5 a5 Bh3 c4 Nc3 d3+ Kd2 Nh6 Rb1 Ra7 Na4 c3+ Kd1 c2+ Kd2 Nc6 Rh2 Nf7 Bf1 f4 Rh3 f3 Rb2 f2 Be2 f1R Bd1 Rf2+ Kc3 d2 Rh2 h3 Be2 d1N+ Kd3 h4 Bh5 Nc3 Nf3 Nb5 Nc3 a4 Bd2 Qc7 Bg6 Rf8 Nb1 Nh8 Rh1 h2 Be1 h3 Nbd2 Rb7 Rg1 h1N Rg4 h2 Re4 Ng3 Ra2 Kd8 d7 Ne2 Ra1 Rg2 Bg3 h1N Bh2 Ned4 Rf1 Rg3 Rf2 Ke7 d8N Bf5 d6+ Kd7 Bh7 Kc8 d7+ Kb8 Rf1 Ne6 Ra1 Ncd4 Nc6+ Ka8 Na7 Nc6 d8B c1N+ Kc2 Qc8 Bf6 Nd3 Rf1 Rbf7 Re1 Nef4 e6 Nfg6 Ne5 Kb8 Rf1 Kb7 Rff4 Qc7 Rh4 Ne1+ Kd1 Qe7 Ke2 Qc5 Rh3 Qc1 Rh6 Ng2 Kd3 Qa3 Rh3 Rg8 Rh6 Nf8 Bg6 Rgg7 Rh7 Rg8 Bh5 Rg6 Bd1 Rh6 Bc2 Rh4 Bb1 Rf4 Ba2 Rf1 Ke2 Rf2+ Kd3 Ne1+
1N6/np1B2K1/BP2R1N1/1pP1br1q/1P1R1P2/2Pp2bB/1Nn1k3/n2r2n1 w - - 0 1 illegal: No proof kernel
3RNr2/NRPpPP1p/k2r4/n1n5/3Pnr1P/Rn4p1/bK3NB1/rB6 w - - 1 2 legal: proof: b4 e5 a4 c5 b5 b6 d3 e4 Bd2 e3 Qc1 Ne7 Qb2 Ng8 a5 Qe7 axb6 Qd8 Qb4 cxb4 f4 exd2+ Kf2 f5 e4 Qc7 e5 Be7 g3 Bg5 e6 Qe5 fxe5 f4 Ra3 f3 Ra1 Bf4 gxf4 Kf8 Ra2 Ke7 Ra1 Ke8 Ke3 Kd8 Kd4 d1N h4 a5 c4 g5 e7+ Ke8 f5 f2 f6 g4 c5 a4 c6 b3 b7 g3 b6 b2 c7 a3 Nc3 b1R Bg2 f1R Nb5 a2 Nh3 Ra6 Nf2 Nb2 Kc3 Nc4 d4 Na5 Rh2 Kf7 e8B+ Ke6 Bg6 Rbe1 f7 Nf6 Bb1 Ne4+ Kb2 Kd5 e6 Kc6 e7 Rf8 Nd6 Rd1 Ne8 Kb5 Nh1 Rf4 Nf2 Rc1 Rh1 Rc6 Re1 Rd6 Re3 Ra8 Ra3 Na6 b8N Bb7 Nc6 Nac5 Na7+ Ka6 Rb3 Bc6 b7 Bd5 b8R Bc4 Rd8 Be6 Bc2 Bd5 Rb1 a1N Rb7 N1b3 Ra1 Nc1 Ra3 Ba2 Bb1 N1b3 Nb5 Ra7 Rbb8 Rb7 Na7 Rb4 Rb5 Rc4 Rb7 Rc1 Bc2 Ra1 Bb1 Rg8 Nh3 Rh8 Nf2 Rf8
2q5/1nP1RNP1/p1K2kPq/5rrb/P1Bb1bR1/2r1P3/3B1q2/nR1Bn2N w - - 0 1 legal: proof: d4 e5 f4 exd4 b4 c5 bxc5 g5 g4 h6 Qd2 Bd6 fxg5 Be7 g6 Bf8 g5 h5 Qf4 Nf6 Qh4 Ng8 Qg4 hxg4 Kf2 Ke7 c4 f5 a4 b5 h4 d5 c6 b4 c7 a6 c5 d3 Ke3 d2 Kd4 d1N g7 g3 h5 f4 g6 f3 h6 g2 h7 b3 c6 b2 Kc5 d4 Rh3 d3 Ra3 d2 Rh6 f2 Rh4 Nd7+ Kd5 Ngf6+ Kc4 Ne5+ Kc5 Ne3 Nh3 d1R Ra1 g1B Rh5 Nd3+ Kb6 Ne4 Nf4 Ne1 Re5+ Kf6 Na3 b1Q+ Nb5 N3c2 Rg5 Nd6 Bd2 Qc1 Rb1 Bg4 Nd3 Nb7 Nd6 Rc8 Nf7 Bh5 Rg4 Rg8 h8R Bd6 Rbb4 Qe8 Rb1 Rf8 Rg8 Bf4 Rh8 Rb8 c8B Na1 c7 Qd8 Be6 Qc8 Bh3 f1Q+ Nf2 Qg2 Bc4 Qh2 Kc6 Qb2 Be6 Rc1+ Bc4 Rc3 Nh1 Bd4 e3 Qa2 Bg2 Qh4 Bf1 Qg5 Be2 Qh6 Bd1 Qb2 Bc1 Qf2 Rg8 Rd8 Re8 Rd5 Bd2 Rf5 Rh8 Nd6 Rg8 Rbb5 Re8 Nb7 Re5 Rg5 Re7 Rbf5
b1n5/r2qB1Pp/1NP1k2r/N1n1Pn1K/1r6/N4p1P/rb2BP1B/4rRR1 w - - 0 2 legal: proof: b4 e5 d4 exd4 a4 b5 axb5 c5 bxc5 g6 e3 Qh4 Kd2 Qd8 Bd3 g5 h3 g4 Ne2 g3 Qg1 Qg5 Qh2 gxh2 Na3 Qe7 Nb1 Qd8 c4 Ke7 g4 d5 b6 a5 g5 f5 e4 a4 b7 f4 g6 f3 g7 a3 e5 a2 c6 Qd7 c7 Ra7 c5 Na6 b8B Bb7 c8N+ Ke6 c6 Ba8 Nec3 Nc5 Bd6 Ne7 Rf1 h1N Rd1 Ng3 Nb6 Ngf5 Bf1 d3 Ne2 d4 Re1 Nc8 Na3 Rg8 Rb1 a1R Be7 Rh8 Bb2 Rg8 Nc1 Ra2 Nb3 Rh8 Na5 Rg8 Kd1 d2 Be2 Rh8 Kc2 d1R Rg1 Re1 Kd2 d3 Rd1 Nd4 Ke3 d2 Kf4 Nf5 Ra1 d1R Kg4 Rd6 Bc1 Rg8 Bf4 Rh8 Bh4 Be7 Bfg3 Bg5 Bh2 Bc1 Bd8 Bb2 Be7 Rf8 Rf1 Rf6 Rd1 Rd4+ Kh5 Rb4 Rd3 Rc1 Rdd1 Rg6 Rg1 Rf6 Rdf1 Re1 Rg2 Rg6 Rgg1 Rh6+
Nq4r1/R2p4/3P1n1k/bRb1p3/3PN1b1/5P1B/n2P1BPb/nrNK2nB w - - 0 1 illegal: Other
k1r1NnR1/2P2BPB/P1pb3N/qbP1pR2/2rpP1NR/n1nK4/q2q4/8 w - - 1 2 illegal: No proof kernel
n4R2/pqNn2kp/PP2R3/2P3n1/pnB1P1BP/2br3N/r1b1KB2/2q4N w - - 1 2 legal: proof: f4 b5 g4 f5 gxf5 e5 fxe5 c5 d4 cxd4 a4 Qb6 a5 Qf6 Qd3 Qb6 Qc4 Qd8 Qa4 bxa4 b4 Kf7 c4 d5 h4 g5 b5 g4 c5 g3 f6 d3 b6 d2+ Kd1 g2 e3 d4 a6 Bf5 Rh3 Bc2+ Ke2 d1Q+ Kf2 d3 e4 d2 Nc3 Qc7 Rd3 Nc6 Nh3 g1N Rd6 Rd8 Re6 Bg7 Ne2 Nb4 Ng3 Rd3 Nh1 Nf3 Ra3 Kg6 f7+ Nf6 f8N+ Kh6 Be2 Ng5 Bg4 Rg8 Ra1 Qg1+ Ke2 d1N Be3 Qb7 Bf2 Ne3 Rf1 Bh8 Re7 Rg6 Ne6 Ned5 Nc7 Nd7 e6 Bc3 Re8 Rf6 e7 Kg7 Rf8 Rff3 e8B Rg3 Rf6 Rg2 Re6 Rh2 Bf7 Rg2 Nb5 Nc7 Bg8 Na8 Nc7 Rh2 Rh6 Qg3 Bc4 Qf4 Rf6 Rg2 Rf8 Qc1 Rd1 Rdg3 Rd6 Rd3 Re6 Qb2 Kf1 Bd1 Be1 Qc1 Bg3 Ra2 Bf2 Bc2+ Ke2 Be1 Ng3 Bd2 Nh1 Bc3
B6r/Rn1R1NpK/prBr3R/2q5/P2p2P1/1b1PqN2/Pkr1PB2/2n3b1 w - - 0 3 legal: proof: g4 b5 f4 e5 fxe5 h5 c4 bxc4 Qb3 h4 Qg3 hxg3 b3 Qf6 Ba3 Qc6 Bc1 Qa4 bxa4 Ke7 Bb2 Kd8 Bc1 Ke8 h4 Rh6 e6 Ke7 d3 Kd6 Kd2 Kc5 Ke3 Kb4 Kf4 c5 Kf5 d5 h5 g2 Nf3 g1Q Ng5 c3 Rh2 c4 Nh3 a6 Kg5 f5 e7 f4 e8B c2 Bd7 f3 Rh1 f2 Bf5 c3 Bd2 c1R Be6 Bc5 Be1 Ne7 Rh2 Nec6 Bg8 Nd4 Be6 Nb3 Bd7 Nc6 Nd2 Ka3 Rb1 c2 Bg2 f1R Bf3 Rf6 h6 Nca5 h7 Rd6 h8R Qd4 Be8 Be6 Kg6 Qc3 Bb5 Bg1 Rd8 d4 Kh7 Qc5 Bf2 Rc8 Rd7 Rh8+ Kg6 Rfe1 Ba8 Red1 Rb2 Rb1 Rh1 c1Q Nf3 Qe3 Nhg5 Rd2 Rh6 Rc2 Bbc6 Nc1 Rbb7 Rb6 Ra7 Kb2 Nf7 Nb7 N3g5 Rf8 Kh7 Bb3 Nf3 Rh8+
4b1R1/3q2qR/1KP1B1pN/1R1NpPqn/1p1N3q/3r4/bPn1PP1k/B3r3 w - - 0 2 illegal: Other
RR1N2n1/1B1rpp2/3bq1rP/2N1P1b1/Bp1B3n/1qPP4/b1p2KPk/1R6 w - - 0 1 illegal: No proof kernel
RKR1r3/1p4p1/3bPbB1/R1b1Pq1P/3p1BP1/N1n2p2/bk1PNN2/3b2n1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 b4 axb4 Bg2 e5 fxe5 d4 Qb3 h4 Qg3 Ra5 Bf1 Rd5 cxd5 hxg3 a4 Ke7 h4 c5 e4 f5 Ke2 c4 Kf3 f4 a5 b3 h5 b2 a6 g2 a7 c3 a8N c2 d6+ Ke6 d7 Bd6 Ra7 Nf6 Bb5 Nc6 Ra1 Qf8 d8R Nd5 Nb6 Qf5 Na3 b1B Bd3 Nc3 Nbc4 Ba2 Ne3 Re8 Ne2 g1B Nd1 Bd7 Ra8 Bh2 Nf2 Bg3 Bb2 Bh4 Rhc1 Bf6 Ra5 Nb4 Ra8 Ba4 Ra5 Nbd5 Ra8 Kd7 e6+ Kc6 e5 Kc5 Be4 Qh7 Bg6 Kb4 Ra5 Kb3 Ra8 Nb5 Ke4 f3 Bc3 Bc5 Ba5 Nf4 Bd8 Nh3 Kd5 Ng1 Ra5 Qh6 Ra8 Qg5 Ra5 Qf5 Be7 Bh4 Bg5 Bd6 Bf4 Bf6 Rd1 c1B Re1 Bb2 Rec1 Bc3 Rc2 Bcb4 Rc8 Na7 Rac1 Nb5 Rca8 Kb2+ Rc4 Bb1 Rc7 Bd1 Rcc8 Nc3+ Kc4 Ne4 Kb5 Nc3+ Kb6 Ba2 Ka7 Bde7 Kb8 Bbc5 Nh1 Bf8 Nf2 Bfd6+
r2q4/Pr2B1QB/NKPn2b1/2P1PnbB/k5r1/B4rq1/1PR5/2qq1R2 w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 hxg4 d4 c5 dxc5 Rh3 Bh6 Rh5 Bc1 Rh8 a4 b5 a5 Nf6 Nc3 Ng8 Qd3 a6 Na4 bxa4 Qxa6 Nh6 Qa7 Ng8 Kf2 g5 Ke3 d5 Kd4 f5 c4 f4 h4 f3 e4 a3 e6 a2 h5 f2 a6 g3 h6 g2 h7 g4 e5 g3 e7 Bh6 Rh2 Bg5 Rh3 Nh6 Rh2 Nf5+ Kc3 d4+ Kb4 d3 Kb5 d2 Nh3 g1R Be2 d1Q Nf4 f1R Nd3 g2 Bd2 Rf3 Bb4 Nd7 Ba3 Nf6 Nb4 Ne4 Bd3 Ned6+ Kc6 Rf8 h8B Rf7 Bf6 Qc1 Rb1 a1Q Qc7 Bb7+ Kb6 Be4 a7 Qd1 Rc1 Rg7 Rc2 Qac1 Na6 Rf7 Rh1 Rh7 Ka5 Rg7 Qb6 Kd7 e8B+ Kc8 Bg6 Rc7 Bh5 Kd7 Qb8 Kc6 Be7 Nh4 Qc8 Bg6 Qg4 Nhf5 Qg3 Re1 Qg4 Re4 Rf1 g1Q Qg2 Rg4 Be4+ Kd7 Kb6 Qh2 Bd3 Qg3 c6+ Ke6 c5 Kd5 Rd2 Kd4 Be4+ Kc4 Rc2+ Kb3 Qg1 Nd4 Bf5 Ka4 Bd3 Bf7 Bh7 Bg6 Qg2 N4f5 Qd2 Bh4 Qh6 Bg5 Qg7 Rb7#
2q5/Nq1N3P/P7/4qRQ1/kr2rr1N/4P1b1/nnPnP3/1R1nKqNB w - - 0 1 illegal: No possible last move
r4N2/b2R4/Pb3Pb1/nb1bBp1Q/P1Bq1r2/rB4nR/1P5P/2K1B2k w - - 0 1 illegal: No proof kernel
1n2b1n1/1b1NqP1R/P2R1P1r/bB1R1PPp/1RQ2b1q/b4r2/2K5/1B4k1 w - - 0 1 illegal: No proof kernel
n2q4/2bbb1P1/1NP1R2R/1P1Np1r1/pK2rB2/P2k4/qnN1NP1r/2Q5 w - - 0 1 illegal: No possible last move
1rBQ1R2/n2qb1K1/8/PP1bP3/p2p1BB1/1nPP3n/n4nq1/Bk2N1R1 w - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 h5 a4 hxg4 b4 b5 Nc3 c4 Ne4 a5 Nc5 Ra7 axb5 a4 Nb3 Ra5 bxa5 cxb3 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 h4 d5 e3 g5 e6 b2 h5 b1N e7 g3 e8B g2 h6 g4 h7 g3 Ne2 g1Q Bc6 g2 Ba3 Nc3 Qb1 Nh6 Ba8 Bb7 Nc1 Na2 Bc4 Ng4 Nd3 Qd7 Ne1 Be7 Qd1 Nf2 e4+ Kf4 c3 f5 Be2 Qh2 Bg4 g1N Rb1 Ngh3 Rg1 Qg2 Rb4 Rf8 h8B Rd8 Rc4 Re8 Rc6 Rf8 Rd6 Nc6+ Kc5 d4 Kd5 Bg5 d3 Ke3 Be5 f4 Bb2 f3 Ba1 Nh1 Qc1+ Ke2 Bg3 Na7+ Ke5 Bd5 Bb7 Rb8 Bc8 Bh4 Qe3+ Kd1 Rf6 Bg5 Qf2 Kc1 Rf8 Kb1 Bf4 Bd8 Qh4 f2 Qe7 f1N Kf6 N1f2 e5 Nd2 Kg6 Nb3 Kg7 Qe6 Qd7 Be7 Qd8 Qd7
2r3b1/1B2P3/4RP1Q/1p1rn2b/4N3/nRR1pP2/3nkPKP/b1R1rN1n w - - 0 1 illegal: No proof kernel
1R3R2/5q1r/kp3B1P/PnBB3P/1K1P2r1/Pr2bp2/p7/bBn1QNb1 w - - 0 1 illegal: No proof kernel
3b1k2/p2KpB2/Pn4p1/P2QrPB1/1R3qPb/Rr2pp1B/1P2N3/Bq6 w - - 0 1 illegal: Other
b5nb/4RB2/2Pr1n1R/2R1P2n/3k1qb1/2b1p1B1/rP2PNP1/rR1b1KQ1 w - - 0 1 illegal: No proof kernel forced: bxLB
2B1RN1B/bK4PP/nnp1r1Q1/8/1qrrP1b1/1RP1Pb2/b1k1b3/1n2RR2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 g5 d3 Bd6 Nc3 Bf8 Nd5 e4 dxe4 gxf4 g5 Qf6 Ne3 Qd8 Ng4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 h4 f5 b4 a5 g6 d5+ Kc3 f3 h5 c6 h6 g3 b6 a4 b7 d4+ Kc4 a3 h7 a2 b5 g2 b6 d3 Be3 f4 Rh6 d2 Bc5 f2 Qc1 d1B Bb4 f3 Bc3+ Qd4+ Kb3 Bg4 Nh3 g1N Qb1 Na6 b8R Ne7 b7 Nc8 Bb4 Nb6 Rc8 Bc5 b8R Rd8 Bg2 f1B Nf4 f2 Bh3 Nf3 Ne6 Nd2+ Ka3 Qd6 Nf8 Kd4 Rh4 Bf3 Rf4 Ra7 Rf6 Re7 Rf5 Rdd7 Re8 Re6 e3+ Kc4 c3 Bd4 Bc5 Bf1e2 Rf6 Bb3 Qg1 Kd3 Re1 f1B Rf7 Kc2 Qg5 Nc7 Kb4 Nb1 Ka5 Na6 Qg3 Bg4 Rf6 Bg2 Rff1 Bg2f3 Qg2 Be5 Bd4 Qe7 Rb7 Bb8 Bh8 Rd4 g7 Ba7 Qg1 Na4 Rb4 a1R Rb6 Ba2 Rb3 Nb6 Qg3 Bh5 Bf5 Rc4 Qg5 Bhg4 Qg6 Rf6 Bc8 Re6 Rb4 Nd2 Rb5 Rd1 Rb3 Nb1 Qf7 Nc7 Qh5 Rdd4 Qg6 Ncd5 Ka6 Nc7+ Kb7 Na6+ Bd7 Qa3 Bc8 Qb4
bqBBR3/q3Q3/BPp4b/1rr2r2/kN3nb1/2PK1Rn1/b2PPBP1/4b3 w - - 0 1 illegal: No proof kernel forced: bxLB
1b4k1/RrbRqr1p/Q3P1Nb/P2n3q/1qB2BP1/2bn2PP/2b1B3/1K5B w - - 0 1 illegal: No proof kernel
2BqQ2K/1b1P1rp1/2b1PbRB/P7/BN1kBbqr/1n1P4/3n2P1/3brR2 w - - 0 1 illegal: No proof kernel
1Bk2N1q/1Rp4q/Qn3BP1/qN3nPr/Bbb1K3/P6r/q1P3P1/2n1q2B w - - 0 1 illegal: Other
1Nn3nQ/p1n3qN/K2R4/n2rN3/P2PbrN1/1n4P1/1BPPn1k1/2n3bR w - - 0 1 legal: proof: b4 c5 bxc5 g5 f4 gxf4 g3 h5 e3 d5 Nf3 d4 exd4 h4 Ng1 h3 Bg2 hxg2 Ke2 Kd7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 a4 f5 h4 e5 h5 f3 h6 f4 c6 f2 h7 f1N c7 f3 Ka5 b5 Qe2+ Ne3 Bb2 b4 Rh3 f2 Rh2 f1N Na3 b3 Rh6 Qd7 Rh3 Bb7 c8N Bh6 Nb1 Nc6+ Kb5 Na5+ Kc5 Qg7 Qc4 Nd5 Kb5 Be3 Rh6 Nde7 Nf3 g1N Ra6 Ne2 Ra3 Nc1 Rb6 Bg1 Qc7 Ne3 Qd8 N3d5 Rf6 Nc7+ Kb4 Bc6 Nb6 Nc8 Nd7 Rb8+ Kc3 Rb5 Ra1 Rd5 Kb4 Bb7 Rd6 Bc6 Bc3 b2 Nb8 Ncb3 Na3 b1N Bb2 Nc3 Nc4 Ne2 Nh2 Ba8 Ng4 Kf3 Qh4 e4 Nce5+ Kg2 Rc1 e3 Qh6 Bf2 Rh1 Bg1 Qf6 Nge7 Qh4 Rf8 h8N Rf4 Nhf7 Ng8 Qf6 Nec1 Qh6 e2 Qh8 e1N Ng5 Ne2 Nh7 Nd3+ Ka3 Ndc1 Kb4 Nc5 Rh4 N7e6 Kb5 Nc5b3+ Ka6 Rb5 Nf3 Be4 Nfe5 Rd5 Rh1 Nc7#
R1n5/b5p1/1rB1P2b/1rNRP1P1/N6K/Qb2qrR1/1P2qRPr/1k3n1q w - - 0 1 illegal: No possible last move
qNB1K3/1Pq2r1b/n1qR4/1p3Pn1/r2pRR2/b2PQ1r1/5PP1/N1R2nk1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Ba6 b6 Bc8 b4 Nc6 b5 Bb7 Ba3 Na5 Bc5 Ba6 b7 Nb3 b8R Bc8 Be3 Nc5 b6 Na6 b7 Nc5 Bd4 Na6 Bb6 cxb6 Ke2 Kf7 Kf3 Kf6 Ke4 h5 Kd5 e5 c4 h3 c5 b5 c6 h2 c7 e4 Be2 e3 Qe1 h4 Bf1 h3 Na3 e2 Nb1 Nh6 Na3 Rg8 Rc1 Rg3 Nf3 Nf7 Ne5 Ng5 Rg1 h1R Rc4 h2 Qc1 e1Q Qc3 Qc1 Nb1 Ba3 Kd4 d5 Nf3 Be6 c8R Bg8 Qe3 Bh7 Be2 Qc7 Rd1 Re1 Bd3 h1N Ne5 Qc2 Ra4 Q2c6 Re8 Re2 Rc1 Re1 Re7 Re2 Rh8 Rf8 Bc4 Rf7 Rd8 Re1 Qd3 Ree3 Qe4 Rb3 Qe3 Rb4 Ra5 Ra4 Nd7+ Kg7 Nb8 Kh6 Rc3 Kh5 Rd6 Kg4 Ke5 d4 Rd3 Rh3 Re8 Ng3 Be6 Nf1 Bc8 Rg3 Rb3 Rg7 Kf6 Rd7 Qe2+ Kf4 Rc3 Rg7 Rc1 Rd7 Qd3 Re7 Qb3 Ke4 Qe6+ Kd3 Qe1 Rg7 Re4 Bb4 Na3 Rf7+ Ke5 Bc5 Nc2 Ba3 Na1 Ne3 Qh1 Ke2 Rf4 Nf1 d3 Nb4 Qh3 Na6 Rd1 Ne3 Rd2+ Kf1 Re2 Kg1 Qh6 Nc5 Ra6 Nf1 Rb6 a5 Ree4 Na6 Qh3 Q6d7 Rc6 Qe8+ Kd5 Qed7 Rc1 Qdc6+ Ke5 Nb4 Qg4 Bb2 Na6 Ra3 Qe2 a4 Nb3 Ra2 Qd2 a3 Qe3 Ra1 Nb8 a2 Rh4 Rb1 Rhg4 a1Q Rgf4 Qa8 Na1 Ba3 Rg4 Na6 Rgf4 Re7+ Kf6 Rb4 Re5 Ra4 Ree4 Bg8 Kg6 Bf7+ Kg7 Bg8+ Kf8 Rd7 Ke8 Bh7 Rd5 Rf7+ Rd7 Qc3 Rd6 Q3c6+
1N5B/1NP1B3/r3Np1r/P3n3/K1p1qP1n/3R1bb1/2PPN1qQ/rn3kb1 w - - 1 2 illegal: No proof kernel
5R2/1prrbBP1/q2bP3/rRbn4/p2N1Q2/PP3n2/1BPBnq2/3K1Bk1 w - - 0 2 legal: proof: g4 f5 d4 fxg4 Nc3 c5 dxc5 e5 Nb5 Qg5 Nd4 Qd8 h3 exd4 Qd3 g5 Qb5 g3 Qb3 d6 Qc4 g2 Qd3 g4 Qd2 g3 Qd1 Bg4 hxg4 Bg7 Nf3 Bh6 Ng1 Bf8 e4 Kd7 f4 Kc6 a3 h5 b3 a5 g5 h4 f5 d5 e5 a4 e6 h3 f6 d3 g6 d2+ Ke2 h2 g7 d4 f7 Kd5 c6 Ke4 c7 Qh4 c8B Nf6 Ra2 Be7 f8B Nbd7 Ra1 Nd5 Ra2 Ra5 Ra1 Ne5 Nh3 g1B Bg2+ Nf3 Nf4 d3+ Kf1 Bgc5 Rg1 Ke3 Rh1 Bcd6 Bd7 Qf6 Rg1 h1Q Be8 Qhh4 Ne2 Qc4 Bb2 Qa6 Qe1 d1R Bf7 d2 Rh1 Qf4 Rh5 Qf6 Rg5 Rh4 Rh5 Rc4 Bh3 Rc7 Rf5 Nf4 Rb5 Nd5 Rb1 Rc1 Ra1 d1N Qb4 Qh4 Nd4 N1c3+ Kg2 Rh1 Rf1 Ne2 Rf2 Rd1 Qc4 Rd3 Kf1 Nh2+ Ke1 g2 Qb4 g1B Bf1 Qf4 Nc6 Qd4 Rf6 Qf4 Qd2+ Kf3 Kd1 Bgc5 Nd4+ Kf2 Rf5 Kg1 Rf6 Rh3 Qc1 Qf2 Qf4 Nf3 Rf5 Bh4 Be7 Rh1 Bg5 Rh2 Bh6 Bhe7 Qd2 Rh5 Qe3 Nb4 Bg8 Bh2 Rf8 Rd5 Bf7 Rdd7 Qe5 Nd5 Bd2 Bf4 Qf6 Be5 Qf4 Be5d6
1NN2b1k/P1P2R1r/qr3K1b/1P5N/1B2p1Q1/p3P2b/3Pn1r1/b2nR1bN w - - 0 1 illegal: No possible last move
1b3NBN/pN1PN3/QPn1P1R1/B1rP1b1q/3pq3/Pkr1n1K1/1r6/2r1r3 w - - 0 1 illegal: No proof kernel
q5BQ/3P4/1RPPB1n1/1rb1qnK1/n6N/k4p1p/nb1b1P1P/1rB1N1B1 w - - 0 2 illegal: Other
R1BR3n/3p1p1n/1r1P2pn/R6P/4kPPq/Q1R4N/Pq1b2r1/KN3b1r w - - 2 3 legal: proof: c4 a5 d4 b5 b4 h5 Qc2 e5 Qh7 h4 Bb2 h3 cxb5 axb4 d5 Be7 Bd4 exd4 Qxh3 Bd6 Qh7 Bf8 Kd2 Ke7 Kc1 Kd6 Kb2 Ke5 h4 c5 e4 b3 d6 c4 g3 c3+ Kc1 d3 b6 c2 Kb2 d2 b7 d1N+ Kc1 b2+ Kd2 Nh6 Ba6 Nc3 Nh3 Nc6 b8R c1Q+ Kd3 Nd5 g4 Nce7 h5 Nf6 Rf1 Ng6 f3 Ra7 Ra8 Rc7 Re1 Bb7 Re2 Bd5 Bc8 Rc2 Re3 Rg2 Re1 Qg5 Kc3 Bc4 Rd1 Qb6 Rd5+ Ke6 e5 Qh4 Qg8 Bf1 Rda5 Qd4+ Kb3 Nh7 Ka3 Be7 f4 Bf6 Qd8 Rg8 Qb6 Nh8 Qc5 g6 Kb3 Bd8 Qa3 Qdf2 Kc3 Bb6 Kb3 Be3 Kc3 Qe2 Kb3 Qb5+ Kc3 Kd5 e6 Bc1 e7 Ke4 e8R+ Qe5+ Kb3 Bd2 Rd8 Kf3 Nc3 b1R+ Kc2 Rb6 Rc1 Re8 Nb1+ Ke4 Rd1 Ra6 Rc1 Rc6+ Kb3 Re6 Rc3 Rb6+ Rb5 Qg7 Kb2 Re5 Ka1 Rd5 Rba5 Rd3 Ng1 Rh3 R5a6 Qe5 Ra5 Rh1 Nh3 Qb5 Rg8 Qb3 Rd8 Qb2+
QK3n2/2np4/p1p1q1rq/1R1BP1Pb/rbb1RP2/1rP2N2/N1RP2k1/2R5 w - - 1 2 legal: proof: a4 e5 h4 g5 Na3 gxh4 Nb1 b5 axb5 e4 Ra4 e3 Ra6 Nf6 Ra1 Ng8 b3 Ba6 f3 Bc8 Ba3 Ba6 Bd6 Bb7 Bg3 Bc8 b4 f5 Bf2 f4 Ra6 Qg5 Rf6 Nh6 Rf7 Qg8 Qc1 exf2+ Kd1 Na6 Qb2 Nb8 Kc1 Qg5 Qa1 Ng8 Nc3 Qg6 Kb2 Qc6 Qd1 Qe4 Kc1 Qe7 Nb1 Qg5 Rxf4 Qe7 Rf7 Qd8 Kb2 h5 Kb3 h3 Kc4 h4 Kd5 h2 e4 c6+ Ke5 h3 g4 Ba6 g5 Rh6 b6 Be2 b7 Na6 b8R Nc7 b5 Ne7 f4 Bh5 b6 Rg6 Be2 f1B Bf3 Bc4 b7 Qc8 Rf6 a6 Re6 Kf7 Kd6 Qe8 Nc3 Kg7 Qb1 Qf7 Re8 Rb8 Na2 Qf5 c3 Kh7 Rf6 Qe6+ Kc5 Kg7 Kb6 Kh7 Ka7 Kg7 Ne2 Kh7 Rg1 h1R Rc1 h2 Nd4 Rg1 Qb6 h1Q Rf5 Qh3 Rc2 Ra1 Rb5 Qh2 Bh1 Qh4 Nf3 Qhh3 Nb4 Ra4 Na2 Qf7 Ne5 Rg8 Rc5 Qg7 Ra5 Ng6 Rd5 Qh6 Re6 Na8 Qd8 Nc7 Bg2 Ba3 Bf3 Nf8 Rd4 Rc8 b8R Qg4 Rb1 Rb8 Rd5 Rb3 Rbc1 Bb4 Qa8 Qh3 Kb8 Kg7 Red6 Q3e6 Rb5 Kh7 Rd4 Kg7 Nd3 Kg6 e5 Kf5 Bd5 Kg4 Re4 Kh3 Ne1 Rg6 Nf3 Kg2
K4n2/p3r1bR/1P3p1n/nN2RP2/B4n2/N1pP1Qq1/N1P1Pnr1/1N2k1b1 w - - 0 2 illegal: No proof kernel
K4b1r/2pB1rQ1/p4n2/P1n2PBB/5rP1/pBP1RN2/1qPbrk1n/3R4 w - - 1 2 illegal: No proof kernel
nr3n2/1P1NpR2/1nb1rb2/NP2P1N1/5nbk/1P2p2q/P1p2RB1/2N2K1Q w - - 0 1 illegal: Other
nR1B1Bb1/p2b1n2/4p3/2Rr1PQp/P5K1/3PB3/PbNr2kP/Br3b1q w - - 1 2 illegal: No possible last move, all moves rejected
q7/N2KpbbN/rNPB2R1/PPN1R1b1/2r3pn/P1q4p/2Q1n2P/3b3k w - - 0 1 illegal: Other
BR1N2R1/1p2n3/1P2PN1R/2r1k1PP/KbbqpbR1/1b5p/1r2Pq2/Q2n4 w - - 0 2 illegal: No proof kernel
nn1b3R/1N1k1r1n/Q5r1/Rp2ppR1/2P3NK/PPP5/3qqPB1/1nR1q3 w - - 0 1 legal: proof: h4 c5 b3 g5 d3 gxh4 Be3 a5 Bd2 d5 Bc3 a4 Bb2 a3 e3 Be6 e4 c4 dxc4 axb2 Qc1 d4 Qd1 Bd5 exd5 Bh6 Qe2 Bg7 Qd1 Bf8 g4 e5 g5 b5 a3 h5 d6 f5 g6 h3 g7 d3 c3 h2 Qc1 d2+ Ke2 d1N Kf3 h4 Nh3 Kd7 Bg2 Ne3 Nf4 h3 Kg3 Rh6 Nd2 b1N Nf1 Nf6 g8R Ra7 Ne6 Ned5 Ne3 Nh7 Rg5 Rg6 Kh4 Nb6 Ng4 Na8 Qg1 Be7 Nc5+ Ke8 Nb7 Kd7 Qd1 Bf6 Qd5 Be7 Rc1 h1Q Qd4 h2 Qb6 Qf1 Qa6 Qe2 Rh1 Nd2 Rad1 Nb1 Rc1 Kc8 d7+ Kc7 Rhd1 Bf6 Rd3 h1Q+ Rh3 Qhe1 Rh2 Qg8 d8R Qd5 Rh8 Qdd2 Rh3 Bd8 Rd3 Qf3 Rd6 Kc8 Qa5 Qfd3 Ra6 Q3e2 Qb6 Kd7 Ra5 Ra6 Qa7 Raf6 Qa6 Rf7
3Rrbk1/pPK1p2p/2NP1r1n/R3B1b1/1P2r2q/1pPnPQ2/2b4B/4B2B w - - 0 1 illegal: No proof kernel
3q1k1q/2bR1N2/Br1p2P1/p1PP4/1nRNnPbR/3P3R/3pp2Q/bK2r3 w - - 0 1 illegal: No possible last move, all moves rejected
1K2k2N/N1p3qN/1pPrnb1B/n5pP/B2nq1r1/b2p1PQ1/2PPRN2/8 w - - 1 2 legal: proof: e4 a5 b4 h5 g4 hxg4 a4 f5 exf5 d5 b5 Be6 Ra3 Bc8 Rb3 Bd7 Rb4 Bc6 bxc6 axb4 Ke2 g5 Kd3 e5 h4 b3 f3 g3 h5 g2 f6 b2 f7+ Ke7 a5 d4 Kc4 e4 Kb5 e3 a6 e2 a7 e1Q Nh3 g1B Nf2 Qe3 Rh2 Na6 Na3 b1N Nc4 Qe4 Ba3+ Nc5 Qe1 Rh6 Ne5 Qd7 Ng6+ Kd8 Bb4 Ne7 Nh8 Ne6 Rg2 Rb8 a8N Nf5 Nb6 Na3+ Ka5 Qe7 Bb5 d3 Ba4 Nfd4 Nc8 b6+ Ka6 Ra8+ Kb7 Nc4 Na7 Na5+ Ka6 Bg7 f8N Ke8 Nh7 Bf6 Ba3 Qg7 Bf8 Bh2 Qg1 Bd6 Qe1 Nc4 Kb7 Ba3 Qg1 Rd8 Qh2 Rd6 Kb8 Na5 Qg3 Rd5 Nh1 Rf5 Re2 Rf4 Nf2 Rg6 Qh2 Rg4 Qg3 Qg8 Bh6 Qf7 Re1 Qg7 Re2 Be5 Bb5 Nd8 Kc8 Rd6 Ba4 Bf6 Kb8 N8e6
bk3B1r/2pPB3/PqRN1K1P/2p1PQr1/2B2n1p/bBrR3P/1p6/1r1n4 w - - 0 1 illegal: No proof kernel
3nrbr1/2p1n1Rb/k2N1P1q/rr3R2/P2Qp3/1PPpP3/1p2N1RB/2K2R2 w - - 1 2 illegal: No possible last move, all moves rejected
n3n2r/P2pp1kP/6p1/3RN1Pr/rR1br2B/Q1pKP2R/Rn1P4/5Bq1 w - - 1 3 legal: proof: c4 a5 f4 b5 f5 b4 b3 Ba6 Na3 Bb5 cxb5 a4 Nc4 axb3 Ne5 g6 fxg6 Na6 g7 Nb8 Ng6 hxg6 a4 c5 h4 f5 g4 Kf7 g5 f4 b6 c4 a5 b2 a6 b1R h5 b3 b7 c3 h6 f3 h7 b2 Rh2 Qb6 Ra5 Nf6 g8R Ne8 Rd5 Bg7 Qa4 Bd4 Rh3 f2+ Kd1 Ra1 Kc2 b1N Nf3 Na3+ Kd3 Nc4 Ba3 Re1 Bc5 Qa7 Rf8+ Kg7 Qa3 Qb6 Ne5 Ra7 Bg2 f1R Bd6 Rf4 Bf1 Rh4 Rf6 Rh5 Bc5 Nc6 b8R Nd8 Ra8 Ne6 Rf4 N6c7 Rfh4 Bg1 Bf2 Qc5 Bg3 Bd4 Rf4 Qb6 Bh4 Qc5 Rb8 Na8 Rb2 Qb6 Ra2 Nb2+ Kc2 Rc7 a7 Rc4 Re4 Ra4 Rf4 Qf6 Re4 Qf2 e3 Qg1 Rg4 Re2 Re4 Rg2 Rf4 Rg4 Re4 Bb6 Rc4 Re4 Rb4 Nc4 Kd3 Bc5 Be2 Bd4 Bf1 Nb2+
3n1K2/P7/Pp6/1B4R1/p3qq1R/NPq1P2n/bPpBNkq1/4N1N1 w - - 0 1 illegal: No proof kernel
n1Nk1n1n/1Prrn1NB/6rn/P1p2PB1/5P2/R7/pKb1PB1B/2R5 w - - 0 1 legal: proof: g4 d5 d4 f5 gxf5 e5 c4 g5 h4 gxh4 cxd5 Ke7 d6+ Kf7 d5 Ke8 Qd4 exd4 a4 a5 Rh3 b5 Rb3 b4 Rh3 Qd7 Rh1 Qb5 axb5 a4 Na3 b3 Bd2 Bh6 Nb1 a3 Bc1 a2 Kd1 Bd2 Na3 Bc3 Nb1 Bb4 Na3 Ra4 Nb1 Ba3 bxa3 Ra7 Ke1 Ra8 Kd1 h5 f4 c5 b6 d3 b7 h3 a4 h4 a5 d2 d7+ Kd8 Bb2 h2 Nf3 h3 Ng1 Rh6 Bf6+ Ne7 Bd4 b2 Kc2 d1R Nc3 b1N Bg2 Nd2 Nf3 Nc4 Nb5 Rg6 Ng5 Nb6 Nd6 Rd3 Rhg1 h1N Kb2 h2 Rac1 Ng3 Bf2 h1N Bf3 Rd1 Bh5 Ne4 Rg3 Rd4 Bg1 Nhf2 Bh2 Ng4 Re3 Ra6 Ra3 Rg7 Bf7 Nh6 Bg8 Na8 Bh7 Rc6 Rf3 Rg6 Ra3 Kc7 d8B+ Kd7 Rd3 Rc7 Ne6 Ng5 Ng7 Ngf7 Rb3 Nh8 Ra3 Neg8 Bh4 Ne7 B4g3 Kd8 Bf2 Bd7 Nc8 Ba4 d6 Bc2 d7 Rd1 Rb3 Nbc6 Ra3 Nd4 Be3 Ne6 Bf2 Rc6 Na7 Nf8 Nc8 Kc7 d8B+ Kd7 Bd4 Rc7 Bf2 Nc6 Bg5 Ne7 Rh3 Kd8 Ra3 Rdd7
3bq3/nkbP4/n3b1B1/B1P1rb2/2P5/K2NPPB1/q2r1rRR/bN5B w - - 0 1 illegal: No proof kernel
2rb4/3nP1q1/6rB/N2n1k1P/nRn4B/qP1Pb3/PR3rRR/1b4NK w - - 0 1 legal: proof: g4 a5 f4 e5 fxe5 b5 c4 d5 Qc2 h5 gxh5 a4 Bg2 a3 Be4 Bd6 Bd3 Bb4 cxd5 Be7 b3 Bf8 Qb2 axb2 Bc4 bxc4 Kf1 Ke7 Kg2 g5 e4 c5 h4 f5 h6 c3 e6 Kf6 h5 g4 h7 c4 e7 g3 e8R f4 d6 c2 d7 f3+ Kf1 c3 Rh3 f2 Kg2 f1N Ne2 Qc7 d8R Ne3+ Kh1 g2+ Kg1 Be7 Rg3 Bf5 Na3 b1N Kh2 g1R e5+ Ke6 Rf8 Nf6 Rd4 Nfd5 Rb4 Qd7 Rf7 Rf8 h8B Bd8 Nc4 Qb7 Na5 Nc4 Rh3 Rg6 Kh1 Qe7 Ng1 Nd7 Bg7 Rc8 Bh6 Qf6 Bg5 Qg7 Rh2 Bd3 Rff2 Rf4 Re2 Kf5 Reg2 Rf2 e6 Be4 Ba3 c1B e7 c2 Bh4 Nbc3 Rb1 Na4 Bb2 Bf3 Be5 Bd1 d3 Be3 Bd6 c1Q Bf4 Bc2 Bh6 Qa3 Rb2 Bb1
Bn2Rb1N/1q3Pp1/PB2b1Pk/5bRN/1n1Nr3/1n4n1/1N1PP3/2rn2K1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 h5 b4 axb4 g5 e6 dxe6 Nc6 exf7+ Kd7 Qb3 Nb8 Qf3 Na6 Qg3 Nb8 Qg4+ hxg4 h4 Ke7 f4 b5 Kf2 c5 a4 g3+ Kg2 b3 h5 c4 f5 b2 h6 c3 g6 Kf6 a5 Kg5 a6 b4 f6 c2 h7 b3 Na3 b1B Rh2 b2 Nh3+ Kh6 Nb5 Qc7 Rh1 Be6 Na3 Ne7 Nc4 Qb7+ Kg1 g2 Ra5 Nec6 Rg5 Nb4 Rh2 Rg8 h8N Ra7 Kf2 g1N Bg2 Ra8 Nf4+ Nh3+ Kf1 Ra7 Nh5 Nf2 Kg1 Nh1 Rh3 Ra8 Re3 Ng3 Ree5 Nd7 Re3 Re8 Be4 Nb8 Bh1 Bc5 f8N Rc8 f7 Be7 Nd7 Rge8 Nc5 Bf8 Nb3 Re7 Ne5 Rc4 Nd3 Re4 Nd4 Rc7 Ra5 Bf5 Rc5 Ba2 Rd5 b1N Ba3 c1N Nb2 Nb3 Rc5 Rh4 Re8 Nc3 Rd5 Nd1 Bg2 Bd3 Rg5 Rc1 Bd5 Re4 Bc6 Nc2 Bc5 Nb4 Ba7 Bab1 Bc5 Bc4 Bb6 Be6 Bd5 Re3 Bf3 Bbf5 Bc6 Re4 Bd5 Qc7 Ba8 Qb7
1N3n1R/2RPK3/n3qrP1/2PRR1B1/1n2n1qN/Pn2p3/2B1P1r1/k3bb2 w - - 0 1 legal: proof: f4 d5 g4 Kd7 b4 c5 c3 g5 fxg5 h5 gxh5 Kd6 Bh3 cxb4 Qb3 a5 Bd7 a4 Qxd5+ Kc7 Qc4+ Kd6 Qb3 axb3 Kf2 Kd5 Kg3 Kc4 Kg4 b5 Kf5 e5 d4 b2 h4 e4 a3 Kb3 g6 e3 c4 Qf6+ Ke4 Qe6+ Kf4 f5 Kg5 f4 d5 f3 h6 f2 h7 f1Q d6 Nf6 h5 Qg2+ Kf4 Na6 Nc3 b1N h6 Nd2 Rh5 Nde4 Bd2 Kb2 Rc1 b3 Rd5 b4 Ba4 Nd7 Nf3 Qg1 Rc2+ Ka1 Be1 b2 Nb5 b1N Nbd4 b3 Nc6 b2 Nb8 Nbc3 Bh4 b1N Bg5 Nbd2 Nh4 Na2 Rc3 Bb7 Bc2 N2b4 Re5 Bc8 c5 Nb3 Rd3 Bg7 Rdd5 Nf8 d7 Bb7 Rf5 Bc3 Rfe5 Qd6 Kf5 Be1 Re8 Qg2 Rc8 Qb6 Rc7 Qg4+ Ke5 Nd6 Kf6 Ne4+ Ke7 Qbe6+ Kd8 Ng3 Re5 Bg2 Rd5 Bf1 Re5 Rg8 h8R Ne4 h7 Rg7 Rd5 Rf7 Rg8 Rf5 h8R Rf2 Rg7 Rg2 Re7 Ra7 Re8 Rb7 Re7 Rb6 Re8 Qg8 Ree5 Rf6 Ke7 Q8e6+
1N1r4/nqr1b2K/R1PPPq2/2B1Np2/Pn1pnR2/2P1k3/2B2b1R/R5n1 w - - 0 1 illegal: No proof kernel
4q3/NB2NnPp/bB1P3P/1PbPqb2/1r2Rq1k/1n4r1/2RR1b2/1K3R1n w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Qc2 d5 Qf5 f3 Qf4 gxf4 cxd5 Be6 Na3 Bg4 Nb1 Bc8 Kd1 Ke7 Kc2 Kf6 d4 Kg5 g4 a5 e4 c5 b4 f5 h3 f2 e5 a4 d6 a3 b6 a2 b7 c4 e6 c3 e7 Ra3 e8R Nd7 Re4 Nh6 Ba6 f1N Rh2 Ng3 Nd2 f3 Nf1+ f4 Ne3 f2 Ne2 f1Q Nf5 Nc5 Ne7 Bf5 Be3 Kh4 g5 Qe8 g6 Nb3 g7 Nf7 Rc1 a1B Kb1 Nh1 Rd1 Qf2 Rd2 Qg3 Rf2 Bb2 Rf1 Bc1 Rc2 Bd2 Bf2 Be1 Bg1 Bf2 Rd2 Kh5 h4 f3 Rc2 Qe5 Rd2 Kh6 h5 Kg5 h6 c2+ Kb2 Qf4 Nc3 Kh4 Nb5 Rg8 Na7 Rh8 Kc3 c1Q+ Kd3 Qe1 Kc2 Qe2 Kb2 Q2b5 Kb1 Qe5 Nd5 Be7 b8R Bd8 Rb7 Bb6 Ne7 Bc5 d5 Na1 Rd4 Bg3 Nac6 f2 Rfd1 f1B Bc4 Qb8 Ba6 Bb6 R4d2 Qc8 Be3 Bf2 Na7 Re8 Bc5 Rg3 Rc7 Nb3 Rc1 Be2 Rf1 Qd7 Bd4 Rb8 Rcc2 Qe8 Bc8 Rb7 Bc5 Ba6 b5 Rc7 Be3 Rc4 Bb7 Bd4 Nec6 Rb4 Ne7 Bc3 Bc5 Bcd4 Bb6 Bc5
3b1b2/1b1rbPn1/kP1N3p/n2K2R1/1qN1PR2/r2b4/N1P3bP/1BB1n2N w - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 e5 a4 exd4 axb5 c5 Qd2 c4 Qd3 cxd3 Kd2 g5 b4 a5 f4 d5 e4 Kd7 b6 Kc6 b5+ Kb7 f6 a4 f5 h6 f7 a3 f6 g4 Ne2 g3 Nf4 a2 Bg2 Ne7 Nh3 Qd6 Re1 Rh7 Rh1 Nf5 Rd1 Qb4+ Nc3 Ng7 Bh1 g2 Nf2 g1B Rf1 Ra3 Bf3 Nc6 Bg4 Na5 Rb1 a1B Nh1 Bf2 Be6 Bh4 Rf4 Be7 Kd1 d2 Ke2 d1N Kd3 Ne3 f8N Ng2 Ng6 Bg5 Nh4 Ne1+ Kd2 d3 Ke3 d2 Nf5 d1B Nd6+ Kb8 b7 Ka7 b8N Be2 Bg8 Bd3 Nd7 Bb7 b6+ Ka6 Na2 Bb2 Ne5 d4+ Kf2 Bc3 Rb3 Bd2 Rc3 Bf8 Rc5 Be3+ Kg3 Bf2+ Kg4 Bfh4 Nec4 Qd2 Ne3 Ne6 Kf5 Qb4 Ke5 Rd7 Nc3 Ng7 Rb5 Bd5 Be6 Bb7 f7 Bd8 Ba2 Bhe7 Rc5 Bb5 Bb1 d3 Na2 d2 Rd5 Bd3 Nec4 d1B Kd4 B1e2 Rg5 Bf1 Ke5 Bg2 Kd4 Nc6+ Kd5 Na5+
k4B2/1rq2P2/1bRNPpBP/5K1P/1r4bB/2RN1nBp/1n2r2P/3rr1n1 w - - 0 1 illegal: Other
1N6/br4p1/RpbPP1R1/RP1rPKPr/5R2/qk2n2N/1r3Bq1/n4Bn1 w - - 0 2 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 Kd7 fxe5 Qg5 b5 Qd8 Qb3 Ke8 a4 h5 g4 Qe7 g5 Qf6 Qb4 axb4 Ra3 Qd6 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 Kg3 c5 Kf4 f5 h4 g3 d4 c4 e4 g2 d6 Ke6 h5 b3 h6 b2 d7 c3 a5 c2 h7 Na6 Be2 Rb8 Bf3 Qe7 d8R Nb4 a6 Nf6 a7 Bd7 a8R Ng4 Nd2 b1R Rh3 Rb2 Be2 Bc6 Rh4 Ne3 Nh3 g1N Nb3 b6 Ra1 Rb7 Na5 Qd6 Bd2 c1R Bf1 Rc5 Be1 Rd5 Bf2 Nbc2 Ra8 Qa3 Ra6 Bd6 Ra2 Na1 Rg4 Re8 h8R Bb8 Rh7 Rf8 Rh6+ Rf6 Rg6 Ba7 Kg3 f4+ Kh4 f3 Rf4 Ke7 e6 Kd6 Kg3 Rf8 Kh4 Rh8+ Kg3 Re5 d5 Kc5 d6 Rd5 e5 Rh7 Rb4 Rh8 Kf4 Rh5 Rd4 Nc4 Kf5 Kb4 Rf4 Kc3 Nb3 Kc2 Nc5 Ne3+ Ke4 Kc3 Nd7 Kb3 Nb8 Qc5 Bg3 f2 R2a5 Qc3 Bd3 f1Q Bf2 Qc5 Be2 Qa3 Bd3 Nec2 Kf5 Qg2 Bf1 Ne3+
1b2BK2/1q2P2q/2n4b/1kpP1PRb/2n2BP1/2PpRNB1/2nr2r1/b1B4N w - - 0 1 illegal: No possible last move
N4nb1/1pBp3B/3qbPK1/8/1PR1r2q/1kn2n2/1P1PnBRP/1r2qB1N w - - 1 2 illegal: No possible last move
qbNR2NK/np3P1n/B1b2P2/1r1prkN1/1P1p3q/1r1PRNB1/P7/q7 w - - 0 2 legal: proof: e4 a5 b4 h5 c4 f5 exf5 c5 g4 a4 gxh5 Na6 Na3 Qa5 Qg4 Qd8 Rb1 Nb8 Rb3 axb3 Qd4 cxd4 Ke2 Kf7 Kf3 Kf6 Kf4 d5 h4 g6 c5 e6 h6 b2 h5 b1Q h7 Qa1 c6 Bc5 c7 Ra6 h6 Qe8 Nc2 Qd8 Nh3 Ba7 Ng5 Ra5 Rh3 Rb5 Re3 Nc6 Ne1 Bd7 Nef3 Qa8 c8N e5+ Kg4 e4 Bc4 Nge7 d3 Re8 h8R Ng8 h7 Bb8 Bd2 Na7 Be1 Bc6 Kh4 Rc5 Ba6 Re5 Kg4 Rb5 Kf4 Kg7 f6+ Kh6 f7 Nf6 Rg8 Kh5 h8N Nh7 Rd8 Kh6 Nh3 g5+ Kg4 Kg7 Kh5 Kf6 Kh6 g4 Ng6 g3 Nhg5 g2 Nge7 g1R Ng8+ Kf5 Kg7 Rf1 Kh8 Rh1 Bc3 Rb1 Be1 Rb3 Nh2 Bd6 f4 Bc7 Bg3 Bb8 Re1 e3 Nhf3 Kg4 f5 e2 f6 Kf5 Rb1 e1Q Rc1 Qf1 Re1 Qh3 Re3 Qh4
1rK4R/2RNP3/pq2nRrp/1rq2bR1/2NpnB2/P7/n2PPP2/k2Br3 w - - 0 1 illegal: No proof kernel
1r6/1P1BqP2/KQr4N/PnBq1n1P/3Rp1PQ/n3rQ1q/5B2/1k3r2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 Kf7 exf5 Ke8 a5 Bb7 Bd3 Ba6 Bf1 Bc8 b3 g6 Ra3 b4 Bc4 Bh6 Ra2 Be3 Ra1 Bb6 axb6 a5 Bd3 a4 Bf1 a3 f4 g5 f6 Bd7 f5 Bc6 Nc3 Ba4 bxa4 h6 Nce2 h5 g4 h4 Nf4 gxf4 Rb1 Rh5 Rb3 Rh8 Rg3 hxg3 Ke2 Kf7 Kd3 c5 Kc4 e5 Kb5 c4 h4 f3 d4 g2 h5 c3 a5 a2 d6 a1Q b7 f2 d5 b3 d7 c2 d6 b2 Qf3 b1N Bf4 c1R Bg5 Nh6 Rh2 Qe7 d8Q Rc6 d7 Na6 Rh3 Qd4 Bh4 Rb8 Qb6 Rhe8 Ne2 g1Q d8Q Qh2 Ng3 Qe4 Be2 f1R Bd1 Qd4 Ba4 Qg2 Rh2 Qh3 Rd2 Qe4 Rd4 Qd5+ Qc5 Rc7 Kb6 Na3 Bd7 Rc6+ Ka7 Nc7 Qb6 Ncb5+ Ka6 Kg8 f7+ Kg7 f8B+ Kf7 f6 Nf5 Rd1 e4 Bh6 Rf8 Be3 Re1 Bc5 Re3 Be8+ Ke6 Bd7+ Ke5 Rd4 Ng7 Nf5 Rf7 Nh6 Nf5 Qd1 Kf4 Qd3 Kf3 Qb3 Ke2 Bf2 Rf8 Qc7 Rf7 Qg3 Rff8 Qh4 Rf7 Rc4 Kd2 Rd4+ Kc1 Qd3 Rff8 Qe2 Kb1 Qf3 Rfd8 f7 Rdc8 Bd6 Rc1 Bb4 Rf1 Bc5 Rc6
1K1k3b/r3nR1P/q5q1/1p4q1/1P1nR1P1/pQ1P1P1Q/n4QB1/1b1R3N w - - 0 1 legal: proof: c4 a5 a4 d5 cxd5 f5 e4 Qd7 exf5 Qb5 axb5 Ra6 bxa6 b6 a7 b5 f3 g5 b3 h5 Ba3 g4 Bc5 g3 Ke2 h4 Bf2 Rh5 Nc3 Rh8 Ne4 gxf2 g4 Na6 Ng3 hxg3 Ra3 Nb8 Ra2 Rh5 Ra1 Rh8 Kd3 e5 Ke4 c5 a8Q a4 h4 a3 f6 c4 d6 g2 Kd5 e4 d7+ Kd8 f7 c3 b4 e3 h5 c2 h6 c1N h7 e2 Qa7 e1Q Qb3 Na2 Nh3 g1Q Rd1 Ne7+ Kd6 Qe3 Bg2 f1Q Nf2 Qg5 Rh6 Rg8 Re6 Nbc6 Nh1 Bg7 Re4 Bh8 Qf2 Re8 f8Q Nd4 Qh6 Qd3 Qh3 Rg8 Re3 Qdf5 Re4 Rg7 d3 Bb7 Rf1 Bd5 Rd1 Rf7 Kc5 Be6+ Kb6 Qfg6 Kb7 Qe1 Kb8 Qed2 Qc2 Bb3 Qb1 Bc2 Qb3 Bb1 Ka7 Kc7 d8R Qc1 Ra8 Qcc6 Rf8 Rg7 Rff4 Kd8 Kb8 Qa6 Rf6 Ng8 Rf5 Ra7 Rf7 Ne7
3Q1Q1r/1q1b3R/1PrBppRb/4P2P/1Pk1p2q/K1P5/3q4/b2RQ1N1 w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 e6 f4 b4 f5 b3 f6 Ne7 axb3 Ng8 b4 Qb6 b5 Qd8 Bd3 d6 e5 d5 Be4 dxe4 g4 h6 g5 Na6 Nd2 Ne7 Nc4 h5 Ne3 Nb4 Ng4 hxg4 fxe7 Nd5 Qd2 Nf6 Qd4 Nh7 Qd5 f6 Qd1 Kf7 Qd3 Kg6 Qd1 Kh5 g6 Ng5 Ra3 Nf7 gxf7 Kg6 Ra6 Rh4 Ra1 Rh8 e8R Kf5 h4 a5 b4 g5 c6 a4 h5 a3 c7 g3 c3 g2 b6 g4 Rh2 a2 Rh3 g3 Be3 Bh6 f8Q Bd7 Kd2 Rc8 Rc1 a1B Kc2 Qe7 Bd4 Kf4 Kb3 Qd6 Bc5 Qd2 Bd6 Ke3 Rb1 Kd3 Ka3 Kc4 Rh2 Bb5 Qe1 Bd7 Nh3 g1Q Rg2 Qc5 Ng1 Qc6 Re7 Qcd5 Rh7 Qb7 Rh2 g2 Rd1 Bc6 Rh3 Ba4 Rg3 Bd7 Nh3 g1Q Rg6 Qgf2 Ng1 Qh4 Qd8 Rb8 c8Q+ Kd5 Qcc7 Rc8 Qb8 Kc4 Qf8 Rc7 Qbd8 Rc6
5q2/1KP2P1q/3p2rb/1r1PQB2/3P3N/1N1pNPQ1/3nkqqQ/rb5R w - - 0 1 legal: proof: d4 c5 b4 f5 g4 b5 gxf5 Nf6 a4 Ba6 axb5 Bb7 d5 Bc8 Ra4 Ng8 e3 h6 Ra2 c4 Ra3 Nc6 Rd3 Nd4 exd4 cxd3 Bg5 hxg5 Kd2 Kf7 Kc3 Kf6 Kc4 a5 Kc5 e5+ Kc4 g4 h4 g5 b6 g3 Kb5 d6 Kc6 a4 c4 g2 h5 a3 b7 a2 b8Q a1R b5 g4 f3 Kg5 f6 Kf4 h6 Ke3 h7 g3 f7 e4 b6 Bh6 b7 R8a5 c5 Rb5 Ne2 g1Q Nec3 g2 Nd2 Qh2 Nb3 g1Q Qc2 Nf6 Bh3 Rg8 h8N Rg6 Bf5 Qgg2 Qa8 Qg8 b8Q Ba6 Qe8 Qf8 Qe5 Qh4 Kc7 Qhh3 c6 Qhh2 Qd1 Kf2 Qd8 e3 Qc2+ e2 Qb2 Ne4 Qh4+ Ke3 Qhg3 e1Q Qa2 Qed2 Nd1+ Ke2 Ne3 Qc2 Qb2 Nd2 Qa2 Ra5 Kb6 Bc4 c7 Rb5+ Ka6 Qb1 Ka7 Qe1 Ka6 Qef2 Ka7 Rf6 Ng6 Qh5 Nh4 Rg6 Na5 Bb3 Qb2 Ba2 Nb3 Bg7 Ka6 Qh7 Ka7 Bh6 Ka6 Ra5+ Kb7 Bb1 Qc1 Qfg7 Qg1 Qf8 Q1h2 Rb5+
r7/1pb5/2N2K1R/BQPn4/RR2rb2/RbR1Pr1P/P2P4/2b1r1qk w - - 0 1 legal: proof: g4 e5 b4 c5 c4 d5 cxd5 h5 gxh5 c4 f4 a6 d6 Qa5 Nc3 Bh3 Nb5 axb5 fxe5 Na6 d7+ Kd8 Bg2 Nc5 bxc5 Ke7 d8R Qb6 Rc8 Qd8 Bd5 Ke8 Rb8 Bf5 Be6 Bh3 Bc8 Bxc8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 h6 g5+ Kf3 f5 h7 f4 e6 c3 Kg4 Ke4 e3 c2 h3 b4 Ne2 f3 Rb1 f2 Ra1 f1R Rg1 b3 Nf4 b2 Ng6 b1R Ne7 Bh6 Rg2 Rf3 Nc6 Ne7 Ba3 c1B Qb3 Nd5 Qb5 Re8 h8R Re7 Rh7 Qg8 Bb4 Qg7 Kh5 g4 Ba5 Bf4 Rh6 g3 Kh4 Re8 e7 Be6 Rg1 g2 Rd8 Ba3 Rc1 g1B Rc3 Re1 Rb1 Bgh2 Kh5 Qg1 Rb4+ Kf5 Ra4 Bc1 Raa3 Ke4 Rd6 Bhg3 Kg6 Bg8 Kg7 Bh2+ Rdg6 Bc7 Rg4+ Bhf4 Kg6 Rg3 Ra4+ Kf3 Kf5 Kg2 Kg6 Rec8 e8R Kh1 Raa3 Rcb8 Re4 Re8 Rb4 Re4 Rba4 Ne7+ Kf6 Rf3 Rg5 Bb3 Rd5 Qh2 Rdd4 Qg1 Rdb4 Nd5+
4q1B1/5KBP/1Bb2nP1/1P3rQ1/kqB1Nrnb/Pb2Rq2/4P2n/2B2n2 w - - 0 1 illegal: No proof kernel
6q1/B5br/K1n3N1/3Q1Rn1/PP1P1P1B/Bb1p1n1B/1P3Bbk/b1rq4 w - - 0 1 illegal: No proof kernel
B1bN1n2/P1K3B1/r1q1r1B1/2p2PQp/n1P1R3/k2Br2P/r3P2r/3nB3 w - - 1 2 legal: proof: g4 b5 d4 f5 b4 g5 c3 e5 dxe5 f4 f3 a5 bxa5 b4 a3 b3 Nd2 Bb4 Ne4 Ra7 axb4 Ra6 Ng3 Ra8 Rb1 fxg3 f4 Nc6 f5 Qf6 Rb2 Qd8 Rd2 Nb8 Rd4 Ra7 Rc4 Ra8 Rf4 gxf4 Kd2 Ke7 Kd3 c5 Ke4 h5 Kd5 d6 a6 g2 g5 b2 g6 b1R b5 f3 g7 f2 e6 Ra1 b6 Qc7 b7 Rh6 Nh3 g1R Nf4 Rg3 Bg2 f1R Qd2 Ra2 Bb2 Nd7 b8B Re3 h3 Rfa1 Rf1 Nf8 c4 Kd8 e7+ Kd7 Rf2 Rh1 Be4 Re6 Bd3 Rh2 e8B+ Kd8 Bg6 Qb6 Ba7 Kc7 Bc3 Qb5 Bb8+ Kb6 Rg2 Qd7 Rg4 Qc7 Be5 Ra7 Qc1 Ka5 Bc3+ Ka4 Be1 Kb3 Qd2 Ka3 Rh4 Qd8 Kc6 Nf6 g8B Qe8+ Kb6 Ra8 Kc7 d5 Rg4 d4 a7 N6d7 B8f7 Ra6 Ne6 Nb6 Nd8 Na4 Bd5 Ree6 Qg5 Re3 Bb1 d3 Re4 d2 Bc2 d1N Bd3 Be6 Kb7 Bd7 Be5 Bc8+ Kc7 Rb8 Bf6 Rbb6 Bg7 Re6 Ba8 Qc6+
1qN5/2q1p3/Q4p2/P1b1kb2/PB2PR2/n2rR2K/nP1b1rPp/1R1R1R2 w - - 0 1 illegal: No proof kernel
1k1bN1rn/4p1pP/nP2Kb1Q/1P1nP3/bNN5/q4NP1/1r3B2/2n2qRN w - - 0 1 illegal: No proof kernel forced: wxDB
1b2BK2/p7/1n2R1N1/2prRq1P/pn6/P1P1RpPn/2pkrP2/1R1nRQ2 w - - 0 1 illegal: No proof kernel
Q2BB2r/b3Bn2/R3Qp2/1bq2Pn1/P3R1PP/3Rn2r/2q2k1P/K3r3 w - - 0 1 legal: proof: c4 a5 b4 g5 bxa5 c5 e4 h5 Na3 g4 Nb5 g3 fxg3 h4 Nf3 Qc7 gxh4 Qf4 g4 Qf5 exf5 Kd8 Nc3 Ke8 Nd5 d6 Nb4 cxb4 c5 d5 Ne5 Nc6 Nc4 dxc4 Kf2 Nb8 Ke2 Na6 Ke1 Nb8 d4 Kd7 Kd2 Kc6 Kc2 Kd5 Kb2 Ke4 c6 b5 a6 e5 d5 b3 a7 f6 a3 c3+ Kb1 b2 c7 c2+ Ka2 b1R d6 b4 d7 Ne7 d8B Ba6 c8Q Nd7 Qc5 Nd5 Qc6 Bb5 Qd6 Ne3 Qe1 Kf3 Bh3 e4 Be7 Ne5 Qc3 Nf7 Bd8 Kf2 Qe6 Bc5 Bf1 Bd4 Bb2 c1Q Qcc8 Qc5 a4 Rb8 a8R Re1 Rd1 b3+ Ka1 Rb6 Bc3 b2+ Ka2 Rb7 Ra6 Re7 Bb4 b1Q+ Ka3 Qbc2 Rd3 Qd6 Qb7 Ba7 Qa8 Qdc5 Bg2 Nf1 Bf3 e3 Bc6 e2 Be8 Ne3 Rg1 Rb1 Rg3 e1N Rd4 Rd1 Re4 Nf3 Rh3 Re1 Rg3 Q2c4 Kb2 N3g5 Ba3 Rd7 Bb4 Rd3 Ba3 Nd1+ Ka1 Qc2 Bb4 Rc3 Rd3 Rb3 Rd7 Rh3 Rd3 Qc6 Bf8 Q6c5 Bfe7 Ne3+
4b1RQ/NN1Nq2r/2qP2p1/1n1RRp2/1QP3PP/2qr4/p2kP2b/7K w - - 0 1 legal: proof: f4 h5 a4 e5 fxe5 b5 axb5 Rh6 Ra6 Rh7 Ra1 Rh8 g4 h4 b3 Bd6 Ba3 Rh6 Bc5 Bf8 Bf2 Rh8 Bg3 hxg3 c3 c5 b4 a5 bxc5 d5 Bg2 d4 Be4 Na6 Bc2 d3 bxa6 dxc2 Kf1 Ke7 Kg2 Ke6 h4 Kd5 d4 Kc4 e6 c1Q c6 f5 a7 a4 c7 g6 e7 a3 e8N Qd7 d5 Qb5 Qa4+ Qb4 Nf3 Bd7 Rd1 Nf6 Kh1 Rd8 a8Q Bd6 c8R+ Bc6 Q4a5 Rh7 Ne5+ Kb3 c4 Kc2 Qb5 Ne4 Nd7 Nc3 Qba5 Nb5 Nc3 Bc7 Nd6 a2 Rb1 Bb8 Nb7 Qe7 Qb4 Qb2 Rd3 Bf4 Re3 Kd2 Re5 Qa3 Rb3 Qa6 Ra3 Qb6 Ra5 Qa6 Ndc5 Be8 Rb8 Rd6 Nd7 Qc6 Rc8 Bf7 Rg8 Be8 Qd8 g2+ Kg1 Qg7 Qf6 Qe7 Qh8 Re6 d6 Bg3 Rc5 Re3 Rd5+ Rd3 Re5 Nd4 Rad5 Nb5 Na5 Rd4 Nb7 Bh2+ Kf2 g1Q+ Kf3 Qb1 Kg2 Qc2 Kh1 Na3 Nb5+ Qc3 Na7 Rd3 Re6 Nb5 Re4 Kc2 Ree5 Kd2
3q4/1Q1P1npP/B1r3nb/KR2b1P1/4PQRB/k1p4q/2b1P1rB/4q1Q1 w - - 0 1 legal: proof: f3 e5 Nc3 h5 Nd5 e4 Ne3 Be7 Ng4 hxg4 Rb1 Bc5 Ra1 Bf8 fxe4 d5 a4 b5 axb5 d4 h4 d3 Nh3 gxh3 cxd3 Qe7 d4 Qg5 d5 Qd8 b4 Ke7 g4 Kd6 d4 f5 Kd2 c5 Kc3 a5 h5 h2 h6 c4 b6 a4 b5 a3 Kb4 f4 b7 a2 b6 f3 Bg2 f2 Rb1 f1Q Rg1 a1B Bh3 Nd7 Bf4+ Ne5 h7 h1Q Bh2 Ne7 Rb3 Ra6 Qc1 Ng6 b8Q+ Qc7 b7 Be7 Qa8 Bd7 b8Q Bg5 Qab7 Rf8 Qe3 Rb6+ Ka5 Ba4 Rb5 Bc2 Q8a7 Rf5 Qf4 Bh6 Rg2 Rg5 Rg1 Kd7 d6 Nf7 d5 Be5 Rg3 c3 Rg1 Kd8 d7 Ke7 d8B+ Kd6 Rg2 Rc6+ Qab6 Qc8 Qg1 Qe1 Bf6 Rf5 Bh4 Rf6 g5 Qd8+ Qgb6 Qhf1 Bc8 Rf5 Rg4 Qh3 Qg3 Rf2 Qf4 Qf6 Qbe3 Rg2 Qg1 Qe7 Qbb6 Qd8 Ba6 Ke7 d6+ Ke6 d7 Kd6 Qgf1 Qb8 Rb3 Qd8 Qc7+ Kc5 Rb5+ Kd4 Qg1+ Kc4 Rd5+ Kb3 Rb5+ Ka3 Qcb6 Qc8 Qb7 Qd8+
6BB/1QPq1b2/2P1nnBQ/k2r1P2/1R2p3/rnKP4/1n3Ppb/R3Q2q w - - 0 1 legal: proof: e4 d5 b4 a5 g4 h5 gxh5 f5 exf5 c6 c4 Kd7 c5 Rh7 Nc3 Ke8 Nf3 Rh8 Ne5 Ra7 b5 Ra6 Nc4 dxc4 bxc6 Ra7 Nd5 Ra8 Nb4 axb4 a4 g5 h4 b5 c7 Kd7 a5 Kc6 h6 e5 d3 c3 h5 e4 h7 c2 Kd2 b3 a6 b4 h6 Kb5 c6 g4 a7 b2 Ra3 b1Q Rh2 b3 Be2 b2 Qg1 g3 Rh1 g2 Bh5 Nf6 Ra4 Qd7 Kc3 Na6 Qe1 Bd6 Bg6 Bh2 Rb4+ Ka5 Bf4 c1N Be5 Rf8 h8Q Nc5 h7 Ne6 Qg7 Rh8 Qh6 Rd8 h8Q Nb3 Bd4 Ba6 Qe8 Bc4 Qe7 Rab8 a8B Rb7 Be5 Ra7 Bb7 Qd1 Bc8 b1N+ Kb2 Na3 Kc3 Bd5 Qd6 Nc4 Rg1 Ng4 Bh8 Nf6 Ba6 Nb2 Bc4 Ng7 Rh1 Bf7 Qd4 Ra6 Qa7 Ne6 Qb7 Qh5 Qed2 Raa8 Rb1 Qd1 Qe2 Qh1 Qe1 Qc8 Rd1 Rd5 Rb1 Qd7 Rc1 Nbc5 Ba2 Ra6 Ra1 Nb3 Qa7 Bg8 Qh7 Nf8 Qh6 Nd2 Rc4 Kb5 Bb1 Rd6 Ba2 Ra3+ Bb3 Rd4 Qb7+ Ka5 Rb4 Bc4 Kc2 Bd5 Bc4 Nb3 Kc3 Bg8 Bcf7 Ne6 Bh7 Rd6 Bfg6 Bf7 Bg8 Rd5
K2rb1bR/PPP3pq/1Q6/4QBr1/1B3qPB/pk3P1n/2rR2p1/2n1Q3 w - - 0 1 illegal: No proof kernel
1BQ3n1/r1PB1b2/pqQ3R1/P1K5/2nPR1p1/PB4p1/1bb3P1/n1Rqr1k1 w - - 0 1 illegal: No proof kernel
BK5b/3pB3/b3b1R1/PknP3p/2p2nnr/1P4p1/q1Q1PRPr/3Q1RQ1 w - - 0 1 illegal: Other
1n5N/NQ1QP1b1/q1q1nB2/7Q/k1P1PbKP/r2RppQ1/2r1q1P1/8 w - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 c5 a3 f5 bxc5 b4 a4 f4 Qd6 Ba6 Qd1 Bb5 axb5 Be7 Na3 Bd6 Nb1 Bf8 e4 g6 Ra3 Ke7 Re3 fxe3 f4 Kf7 f5 Ke8 f6 h5 Qxh5 Qb6 Bc4 Be7 Be6 Qd8 Bf5 Bf8 Qh7 gxf5 Ke2 d5 Kf3 a5 h4 a4 b6 f4 e6 a3 e7 Kd7 c3 Kc6 b7 Kb5 f7 a2 c6 a1B c7 b3 c8Q b2 Rh3 d4 Qh5+ Ka4 Rh1 d3 Kg4 f3 Na3 b1Q Ne2 d2 Bb2 d1Q Nb5 Bg7 f8Q Qbc2 Qf4 Qa5 Na7 Qa6 Qg3 Be5 Nf4 Qde2 Ng6 Bf4 Rd1 Nh6+ Kh3 Rf8 Nh8 Nf7 Rd3 Ng5+ Kg4 Ne6 Qc7 Rc8 Qd7+ Nc6 b8Q Rc7 Qg8 Rcc8 Qb7 Nb8 Qd8 Qb5 Qc6 Kb3 Qdd7 Rc7 Nc8 Ra3 Qb7 Ka4 Na7 Rc5 Rd5 Qcd3 Rd6 Qc6 Rd5 Qa6 Rd3 Rb5 c4 Rbb3 Bc1 Bg7 Bb2 Rc3 Ba1 Rc1 Bf6 Rc2
1brb1Q2/3K1QR1/B2rnPqR/2P2b2/b2R1n2/P2PP3/q3k2q/1N2bR2 w - - 0 1 illegal: No proof kernel
K1N1rq1N/3P1B2/1N1bq1Pr/3Nb2P/n4rQP/1k2P1qb/n4Qr1/3R4 w - - 0 1 illegal: No proof kernel
2Bqb2n/Rn1nbP2/6p1/1K5k/1Pr5/1PBQ2PP/2B2rqB/nN2Q1n1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 e4 h5 d4 e5 f4 b5 g3 h4 a3 b4 axb4 h3 Nc3 Ba6 dxe5 Bb7 e6 Qd6 e5 Qd8 Ne4 fxe4 Ra5 Bc6 Rc5 Bb7 Rc2 Bc8 Rg2 hxg2 Ke2 c5 h3 a5 d6 c4 f5 e3 b3 a4 e7 Kf7 f6 Kg6 f7 a3 e8B c3 Kd3 c2 Kc4 a2 e6 a1N d7 e2 e7 e1Q Qd2 Qf2 Nf3 g1N Kb5 Rh4 Qd3+ Kh5 Nd2 Rc4 Bb2 c1N Nb1 Qg2 Bc3 Ra2 Rh2 Bb7 Be2+ Bf3 Bd1 Rf2 Bc2 Bb7 Qd4 Nd3 Qe3 Qc7 d8B Nc5 Qd3 Nbd7 Rh1 Qc8 Bb6 Qd8 Rh2 Bf3 Ba7 Nb7 Bc5 Ne5 Bd7 Ng6 e8Q Nh8 Bc8 g6 Qe1 Be7 Ba7 Nf6 Bc5 Nd7 B5d4 Rd2 Rh1 Ne2 Bg1 Bg4 Bh2 Be6 Rf1 Ng1 Rf6 Bd5 Ra6 Rf2 Ra7 Bc6+ Ka6 Nf6 Ra8 Be8 Ra7 Nd7 Kb5 Rh4 Nd2 Re4 Nb1 Rc4
5brN/B1p4n/Q1RPB2P/P1Kp2k1/3P1b1n/3nB2q/1B2P2Q/2r3rb w - - 0 1 illegal: No possible last move
Rq1kq3/6Np/2rrbP2/4BPR1/1R2n1QP/1R1PbKQ1/3pPq2/n5r1 w - - 0 1 legal: proof: c4 b5 g4 d5 a4 f5 gxf5 c5 axb5 Bb7 b4 Nh6 bxc5 Bc8 c6 Ng8 c5 Qb6 Bg2 Qa5 Be4 Qb6 Bd3 Qd8 Bc4 dxc4 d3 e5 Nd2 e4 Kf1 e3 Ra6 exd2 Ra3 Qd6 Ra1 Qd8 Kg2 g5 h4 a5 f4 a4 c7 g4 c6 g3 b6 a3 b7 c3 Bb2 a2 Rh3 c2 Qe1 c1Q Rh1 Qb1 Rh2 Bh6 Be5 Na6 b8R Nf6 Nh3 Be6 c8R Ne4 c7 Nac5 f6 Ra6 Ng5 Rc6 Rb4 Nb3 Kf3 g2 Ra8 g1Q c8Q Qb2 Rd1 a1R Qg3 Qa7 Rdh1 Rg1 Rg2 Na1 f5 Rd6 Qc4 Qdb8 Rb3 Kd8 Qa4 Rg8 Qd4 Rc1 Rhg1 Rc3 Rb1 Rc6 Rb4 Qba2 R1b3 Q2a4 Qc4 Nc5 Qcg4 Ne4 Nh3 Be3 Nf4 Rc1 Rg1 Qe8 Nh5 Rg7 Rg2 Rgc7 Ng7 R7c6 Rg1 Rb1 Rg2 Rg1 Q4f4 Bd7 Qh3 Be6 Rg5 Qb6 Qfg4 Bf4 Qgg3 Qf2+ Kg4 Qh2 Kf3 Be3 Qhg4 Qf2+
5bR1/1bbBBQ2/1Q6/1Q1P1r2/3Kp1pP/P2PP1kn/1q2r3/rr1n1QN1 w - - 0 1 legal: proof: b4 a5 g4 b5 c4 h5 f4 d5 cxd5 Rh6 g5 Rh8 bxa5 g6 a3 b4 Ra2 b3 Nc3 bxa2 Ne4 Qd7 Nf2 Qd6 f5 Qd7 fxg6 Qd8 Ng4 hxg4 Kf2 Kd7 Ke3 Kd6 h4 Ke5 d3 a1R a6 c5 a7 f5 g7 c4 g6 c3 Rh3 f4+ Kf2 c2 Rf3 Na6 Qd2 Nc5 Qd1 Bb7 Bg2 Rb8 a8Q Qb6 Qe1 Ne4+ Kf1 Nh6 g8Q Nf2 g7 Nd1 Qaa5 Qb2 Qb6 Nf7 Qb5 Ng5 Qf7 e6 g8Q Nh3 Qgg6 Rh5 Rf2 f3 Bg5 c1B Be7 Rf5 Qgf6+ Kf4 Qea5 e5 Qab6 Qc2 e3+ Kg3 Ke1 Bb2 Bh1 Qb1 Kd2 Rc8 Rf1 f2 Bg2 Rb8 Be4 Qa2 Kc2 Qb1+ Kb3 Bd4+ Kc4 Qb2 Qd8 Bc3 Qdb6 Ba5 Kc5 Rf4 Bg6 e4 Bf5 Rf3 Bd7 Rf5 Qb6c6 Bc7 Qcb6 Nc3 Rc1 f1R Kd4 R5f2 Qf5 Re2 Rc2 Rfb1 Qf1 Nd1+ Rc3 Qc2 Rc6 Rc8 Rg6 Qb2+ Kc5 Ra8 Rg8 Ra6 Q6a5 Rg6 Qab6 Rf6 Kc4 Rf5 Kc5 Nc3 Kd4 Nd1+
1B6/1nP2n2/1PB1b1pR/bQ1Bprkn/QP2P1q1/2P3B1/3K3b/q4qN1 w - - 0 1 legal: proof: b4 b5 g4 c5 f4 e5 d4 a5 dxc5 g6 a4 Bh6 axb5 Ke7 g5 Ke8 f5 Ra6 Nc3 Rb6 Nd5 Re6 fxe6 Bf8 Ne7 Bb7 Nf5 gxf5 g6 f4 g7 Ba6 Ra3 Bb7 Rg3 Bc8 Rg6 hxg6 e4 Ke7 h4 Kf6 h5 d5 h6 d4 h7 a4 e7 f3 e8Q f2+ Ke2 a3 c6 a2 c7 a1B Rh4 d3+ Kd2 Nh6 g8B Qd7 Qg4 Bc5 Rh5 Nc6 Rh4 Bb6 Bg2 f1N+ Kd1 d2 Qe2 Ng3 Rf4+ Kg5 Qc4 f5 Bh3 Bad4 c3 Na5 Bd5 Rf8 h8B Nb7 Rh4 Nf7 Rh6 f4 Qb3 f3 Qa4 f2 Bf6+ Kf4 Bh4 f1Q+ Kc2 Nh5 Bg3+ Kg5 Bhe6 Bf2 Bc6 Ba5 Bed5 Qg4 Qd7 Be3 Qe8 Bf4 Qd7 Qf2 Kd3 d1Q+ Bd2 Qa1 Be3 Nbd6 Ba7 Nb7 b6 Qg2 Qe8 Be6 Bb8 Qh1 Be1 Bh2 Bg3 Qhf3+ Kd2 Qff1 Qe7+ Nf6 Qc5 Nh5 Qcb5 Nh8 Ba2 Rf5 Bad5 Nf7
3k2BR/1qq1n3/2QbR3/1PR1pNr1/P1q1PKP1/4n1p1/Q1bP3q/R5q1 w - - 0 1 illegal: No possible last move, all moves rejected
Q3r1R1/q1k1B1rp/B2p1nn1/1p4PP/1B1b2Q1/Pr6/2r1BP1P/1K2n1N1 w - - 0 1 illegal: No proof kernel
1bQq4/1p1b3R/NP1r1k2/1p2br1n/2p3BP/QP3Qbq/P2P1RQ1/7K w - - 0 2 legal: proof: g4 h5 gxh5 f5 e4 d6 exf5 a6 b4 Rh6 b5 Nd7 b6 Nc5 Na3 Nb3 cxb3 Rh8 Nb5 axb5 Ba3 Nf6 Be2 Ng8 Bc5 dxc5 Bf1 c4 f4 Kf7 Kf2 e5 Kg2 g5 h4 c5 f6 e4 h6 c3 h7 g4 f5 e3 Be2 c2 Nh3 c1B Qg1 g3 Bg4 c4 Rh2 e2 Nf4 e1Q Kh1 Qe6 Nd3 Bb2 Rf2 Bd7 Raf1 Bd6 Nb4 Bbe5 Na6 Rc8 Qh2 Bb8 Qg2 Rc6 Re1 Rd6 Ree2 Kf8 f7 Kg7 f6+ Kg6 f8Q Qf5 f7 Nf6 Qe7 Rf8 h8Q Nh5 Qe8 Qf3 Qh7+ Kf6 Qd3 Rg8 Qe3 Rg5 Qc5 Rf5 Qa3 Bf4 Re7 Be5 Qg8 Qd3 Qf3 g2+ Kg1 Qd5 f8Q+ Qf7 Qe8 Qd5 Rh7 Qd3 Qfd5 Qh3 Qf3 Qe7 Qc8 Qd8 Qf4 Qd3 Kh2 g1B+ Kh1 Bh2 Qf3 Qc3 Qgd5 Qe3 Qg2 Qh3 Qdf3 Bhg3+
nB3Qn1/b4P1p/pPp5/1PP2bQ1/q4rrR/b3nq1P/R1Q3N1/1QK3k1 w - - 0 1 legal: proof: d4 e5 dxe5 f5 e4 b5 a4 Bd6 axb5 Nh6 e6 Ng8 e5 Bf8 f4 Be7 Bd3 Bf8 Be4 g6 Nc3 fxe4 f5 g5 Nce2 Nh6 Nf4 gxf4 Ra6 Ng8 Ra3 Nf6 Ra1 Ng8 Kd2 Ke7 b4 d5 g4 c6 c4 a6 h3 e3+ Kc2 d4 g5 d3+ Kb2 e2 g6 e1B g7 d2 Ra4 f3 Rh2 f2 Ne2 f1Q Nf4 Nd7 Qc2 Nb6 Ng2 d1N+ Kb1 Rb8 Bf4 Ne3 Kc1 Na8 b6 Qd4 c5 Qf3 b5 Bb4 Qb1 Rb7 Bg3 Qc4+ Qc2 Rd7 Bf4 Rd4 Bg3 Rg4 f6+ Kd8 e7+ Kd7 Bf4 Ke6 e8Q+ Kd5 e6 Kd4 e7 Bf5 Qg6 Qa2 e8Q Bd6 Qb1 Bb8 Qf8 Ba7 Bb8 Rf4 f7 Qb3 Ra2 Qa4 Rc2 Kd3 Rc4+ Ke2 Qg5 Kf1 Re4 Nh6 g8Q Kg1 Q8g6 Rg8 Rd4 Bc8 Qgc2 Bf5 Rd6 Rg7 Rf6 Ng8 Rh6 Rg6 Rh4 Rg4 Nf4 Re6 Re2 Re4 Ng2 Ref4 Qd3 Nf1 Ra2 Ne3 Qdc2 Ba3+
N4bb1/6NK/RP1rrb2/3p3P/4np2/NNpP1Prk/1qPQB1r1/1Q5n w - - 2 3 legal: proof: b4 b5 g4 h5 gxh5 a5 a4 Ra7 axb5 Ra6 b6 Ra8 d3 e5 b5 e4 Bd2 e3 Ra4 Ra6 Rb4 axb4 Bg2 exd2+ Kf1 Ra8 Bh3 Nc6 Kg2 Na7 Kf3 Nc6 Bf1 Nb8 Kg3 Na6 Kg2 Nb8 Kh3 Ke7 Kg4 Ke6 e4 c5 h4 f5+ Kf4 g5+ Ke3 d5 e5 b3 h6 f4+ Kf3 Kf5 b7 c4 h5 g4+ Ke2 c3 e6 g3 Kf3 b2 e7 g2 e8N Nd7 b8N Ne5+ Ke2 Kg4 h7 Ra6 Qe1 d1R Qd2 Be6 Ng7 Nf6 Nd7 Qb6 Nf3 g1B Nd4 Bf7 Nb3 Rg8 h8Q Ne4 Na3 b1R Qh7 Qb7 Nb6 Rb2 Na8 Rd6 Rh3 Ra2 Rg3+ Kh4 Qh8 Ng4 Kf3 Rc1 Rg2 Kh3 Be2 Re1 Qh6 Raa1 Qf6 Rad1 Qd4 Rc1 Q4e3 Rcd1 Qc1 Rd2 Qb1 Bh2 Rg1 Bg3 Rf1 Bh4 b6 Qd7 Rg1 Bf6 Rf1 Qb5 Rg1 Rdd1 Qd2 Rc1 Na1 Qb2 Nb3 Nh6 Rf1 Nf5 Rg1 Nfg3 Rf1 Kh2 Kg4 Nh1 Kf5 Kh3 f3 Rcd1 Ne6 Rg3 Rg1 Rf1 Ng7 Rf2 Re1 Rfg2 Rf1 Re1 Rg1 Ng5 Rf1 Be6+ Kg6 Ne4+ Kh7 Bf7 Rg1 Rf1 Qa2 Rff2 Ra1 Rf1 Qb1 Re1 Bd1 Nc5 Ra2 Ree6 Be2 Ne4 Nb5 Kh4 Ra6 Kh3 Na3 Bg8+
1K3nB1/2RR1R2/2q4Q/1bnPRb1r/1qkB2P1/P3R1n1/1Pp1r1P1/3q2b1 w - - 0 1 illegal: No proof kernel
1BB1b2r/p2B3q/1Prr3N/2P2rr1/1Nb1PP2/k1B4K/nb3P2/2RnB3 w - - 0 1 legal: proof: d4 b5 b4 c5 dxc5 e5 a4 h5 axb5 f5 g3 f4 gxf4 Rh7 Qd4 exd4 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 e4 Ke7 h4 d5 c4 g5 c6 Kd6 h5 g3 b6 g2 b7 d3 h6 d2+ Ke2 d1B+ Ke1 g4 b5 Kc5 h7 Kb4 c5 d4 b6 g3 c7 d3 Nh3 g1R Nc3 g2 Ng5 Nh6 Rh3 Nf5 Nf7 Na6 b8B Ne3 Rg3 Ba4 Nd1 d2+ Ke2 Be6 Kf3 Bc4 c8B Qc7 Bf5 Be8 Nb2 d1R Bc8 Rd6 Bd2+ Ka3 Nd3 Bg7 Nb4 Nd1 Be1 Bb2 Nh6 Rh1 Bd3 g1R Kg4 Rh5 Bd7 Rf5 Kh3 Rc6 Rf3 Rg4 Rg3 Rg7 Rg1 Rgg5 Bc8 Qe7 Bc2 Rd6 Ba4 Qg7 Bad7 Qf7 Nd5 Nb4 Rf1 Na2 Nb4 Rf8 h8B Qh7 Bhc3 Rh8 Bc7 Rb8 Rh1 Rb7 Bb8 Rc7 Bed2 Ne3 Rc1 Rcc6 Be1 Nd1
B1bq4/Rr2PbB1/1pB2RB1/1P6/2QnP3/1PnP2kn/r2KB2r/5q1n w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 c5 hxg5 c4 b3 c3 a3 Bb4 axb4 Ke7 Ra4 Kf8 Ra1 Ke8 Nf3 d5 Na3 Nd7 Nc4 Ndf6 Ng1 Nh6 Nh3 Nd7 Nf2 Nb8 Nd3 Ng8 Ndb2 cxb2 Na5 Nd7 c4 Nb8 c5 Na6 Nc4 dxc4 Ra5 Nb8 Ra3 Bh3 Ra1 Bc8 e4 Ke7 g4 Ke6 g6 b1N b5 h5 g5 f5 g7 a5 g6 a4 c6 b6 c7 f4 Bg2 a3 Qc2 c3 Bb2 h4 Rg1 h3 Qd1 h2 Rf1 h1N Qf3 c2 Bc1 a2 Qe2 f3 Bb2 Nf6 Qc4+ Nd5 d3 f2+ Ke2 c1Q Bf3 Nc6 Bc3 Qf4 g8B+ Qf7 g7 Nd4+ Kd1 Rh2 Be2 Ra7 Bh7 Rb7 Bg6 Qff6 Bb2 Nc3+ Kd2 Qf5 g8B+ Qf7 Rfb1 f1B Re1 Bg2 Rf1 Bf3 Rf2 Bh5 Rf6+ Kd7 e6+ Kd6 e7+ Ke5 Bf5 Nf4 Bg6 Qff8 Bd5 Nh3 Bc6 Qf7 Re6+ Kf4 Rf6+ Bf5 c8B Kg3 Be6 Qff8 Bed5 Bc8 Re6 Qf1 Rf6 Rd7 Ba8 Ra7 Bdc6 Rb7 Re1 a1R Rd1 Ra4 Ra1 Rb4 Ra5 Ra4 Ra7 Ra2 Bf5 Bf7 Bg6 Nc2 Rf4 Nd1 Bg7 Nc3 Rf6 Nd4+
1k3r1K/1B5P/1Brn3r/PR4N1/bR5n/pP1R3n/3PPp1q/bq4RR w - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 h5 g4 a4 gxh5 Bd7 Na3 Bg4 Nb1 Bc8 b3 a3 Qc2 Be6 Qc3 Bc8 Qb2 axb2 a4 b5 a5 Qe7 Nc3 Qd8 Na4 bxa4 Kf2 Kd7 Ke3 b1Q Kd4 c5+ Kc4 Kc7 h4 g5 h6 f5 h7 a3 e6 f4 e7 g4 e8R f3 h5 f2 h6 g3 Nh3 g2 Re3 g1N Bb2 Bd7 Ra2 Na6 d6+ Kb8 Kd5 c4 Ke5 c3 Ra1 c2 Bd4 c1R Ng5 Nc7 Bg2 Nb5 Re4 Nh3 Bb6 Rc6 Rb4 Ne7 Kf6 Ng6+ Kf7 Be7 Kg7 Ra6 Bf3 Rf8 h8R Rf6 h7 Nh4 Re8 Qc8 Kh8 Bd8 Be4 Qc7 Re5 Be8 d7 Nd6 Bg2 Rh6 Reb5 Bf6+ Kg8 Bb2 Be4 Rf6 Kh8 Be5 Ra2 Ba1 d8R+ Nc8 Rb2 Qh2 Rd3 Rh6 Bg2 Rcf6 Rc2 Nd6 Rcc1 Bd7 Rcg1 Be8 Rf5 Bd7 Bb7 Ba4 Bd4 Rb6 Rfb5 Rc6 Bb6 Rf8#
2br3k/qPN1PB2/p2B3b/2N2QKp/3Pr1P1/r1B1nB1r/1P6/Bn4b1 w - - 0 1 illegal: Other
kbnbrK2/p7/nP1PB1P1/RPqn1bR1/3B4/2B5/PnpB1B2/2q1Q3 w - - 0 1 illegal: No proof kernel
5n2/1Q1rn1p1/1PnNNR2/pp2P1bn/3q3p/2K1R3/1P1NPNPk/1r5N w - - 1 2 illegal: No proof kernel forced: bxLB
1N3Q2/nK2bnp1/1r1pRqR1/P3pRR1/1k4P1/bP1P4/2Pp2p1/1r1NRb2 w - - 0 1 illegal: No proof kernel
2B5/1n3NP1/1qP2B1P/B2kP2R/qr1r1p2/b2BR2P/1r3K1R/2nn3q w - - 0 1 legal: proof: d4 b5 f4 g5 a4 h5 axb5 c5 dxc5 e5 Qd4 exd4 h4 Bb7 Nc3 Bd5 Nd1 Be6 Ne3 Bh3 gxh3 Qf6 fxg5 Qd8 Ng4 hxg4 b4 Ke7 c4 Ke6 e4 f5 c6 a5 e5 d5 b6 d3 g6 d4 b5 d2+ Ke2 d1R b7 a4 g7 g3 c5 a3 c7 g2 c8B+ Nd7 b8B a2 b6 d3+ Kf2 f4 h5 Ra4 h6 Nf6 b7 Ne8 c6 Qb6+ Be3 Nd6 Rh2 Rb4 Nf3 Kd5 Bc7 Nc5 b8R Ndb7 Bd8 Nb3 Ng5 Nc1 Nf7 d2 Rb1 a1Q Bf6 Qa4 Bd3 Rg8 Rb3 g1Q+ Kf3 Qh1+ Kf2 Be7 Bc5 Rd4 Bb4 Rf8 Ba5 Ba3 Bc2 Rd8 Re3 Rb4 Bd3 Re1 Bcf5 Rd7 Rf8 Rd8 Bg4 Rb8 Bc8 Rd4 Rf3 Ree4 Rg3 Rb4+ Re3 Red4 Re8 Qc5 Nd8 Nd6 Bg5 Rb1 Rf8 R1b2 Rf5 R8b4 Nf7 Nb7 Bf6 Qb6 Rh5 d1N#
B6b/r2qr2b/q5PN/b3BBrP/qP2n2P/k3pRPB/4K1R1/5R1n w - - 0 1 illegal: Other
5Bkq/P4pnN/n1B1b2P/5Q2/r1r1P1rB/3r1NP1/3nKPp1/Nb3B2 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 b5 bxa5 b4 c3 b3 Kd2 Bd6 Ke1 Bb4 cxb4 h5 a4 h4 g3 h3 Bb2 Rh4 Qc2 Rf4 Na3 Ke7 Bg2 Qe8 Nf3 Kd8 Kd2 Re4 Rag1 Ra6 Nb1 Rh4 Ke1 Re4 Bc1 Rh4 Bf1 Rh8 Qd1 Ra8 Rg2 Ke7 Ng1 Qd8 Qd3 Kf8 Qd1 Ke8 Nd2 hxg2 h4 g5 h5 Qe7 Nb1 Qd8 Rh4 gxh4 e4 Kf8 a6 d5 a7 c5 b5 d4 h6 h3 a5 b2 e6 d3 a6 d2+ Ke2 h2 b6 h1R b7 c4 Qa4 d1R Qb4+ Ne7 Na3 b1B Bg5 c3 Nf3 c2 Qa5 Rg8 Bh4 Rd3 Qe5 Rg4 Qf5 Ng6 e7+ Kg8 e8N c1N+ Ke1 Nb3 Nc2 Nd2 Na1 Ne7 Ke2 Be6 Nf6+ Kf8 Nh7+ Kg8 Qe5 Qd4 Qa5 Qh8 Qf5 Nd7 b8B Nc5 Bd6 Rc8 Qe5 Nf5 a8B Ng7 a7 Na6 Bf8 Rc4 Bc6 Ra4 Qf5 Rc4 Bf6 Rh5 Bh4 Rhg5 Qg6 Ra5 Qf5 Raa4
B1n5/2q1NkN1/1RKp1rbb/2R1PRn1/1NbP2Pb/3P3n/1R2p2P/1q6 w - - 0 1 illegal: No proof kernel
n7/bRpnPKB1/Q2p1p2/3P3k/R1PRbq2/b3P1B1/nRB4P/1rr1r3 w - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 fxe5 Bd6 g4 Ba3 Nc3 Bf8 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Bc5 Nf2 Bf8 Ng4 hxg4 Kf2 a5 c4 d6 b4 f3 Kg3 a4 Kf4 f6 d4 Kf7 b6 Kg6 b7 a3 d5 f2 e6 g3 b5 g2 e7 g1B b6 a2 Qa4 Bh6 Qa6 Nd7 b8R Qe8 b7 Kh5 Kf5 Rh7 Bh3 f1R+ Ke6 Ba7 Bf5 Qf8 Be3 Rc1 Rd1 Qe8 Rb1 a1N Rd4 Nc2 Rb2 Nb4 Bc2 Na2 Bf2 Rh8 Bh4 Qg6 Bg3 Qe4+ Kf7 Qf4 g6 Nb6 g7 Bf5 Rf8 Be4 b8B Bg5 Ke8 Nh6 g8R Ng4 Kf7 Nf2 Rc8 Nd3 Rce8 Nc5 Rd8 Nbd7 Rb7 Na4 Rg6 Bc5 Ba7 Nab6 Rdb8 Ba3 Rgg8 Nc8 Rb2 Ncb6 Rb7 Rb8 Rd8 Na8 Bc5 Re8 Bb4 Rg8 Bd2 Bh4 Rf8 Rg5 Re8 Re5 Be3 Qf5 Bh6 Qf4 Bg7 Re6 R7b4 Rb5 Ra4 Re5 Rb8 Rb4 Be1 Bf2 Rb7 Bg1 Bg3 Bf2 Rd2 Ba7 Rd4 Rg5 Be1 Rg1 Bg3 Rge1 e3 Nc3 Ra2 Rbb1 Rab2 Na2
2b5/Bq3nRK/1Pr1pb2/2P1P2p/2qNB2B/1p5P/P1n1N1N1/q1rkB1b1 w - - 0 1 legal: proof: d4 a5 c4 c5 g4 f5 gxf5 b5 Nd2 a4 b4 Nc6 Qb3 axb3 Rb1 Nb8 Rb2 Ra7 Rc2 Na6 dxc5 Ra8 c6 Nb8 c5 Qa5 Rc3 Qd8 Rc4 bxc4 e4 Kf7 Ke2 Kf6 Ke3 Kg5 f4+ Kg4 e5 h5 Ke4 g5 f6 c3 h3+ Kg3 Kf5 Kf2 Kg6 Ke1 c7 d5 f7 e6 b5 c2 b6 d4 f5 g4 f6 d3 Nc4 d2 Bg2 d1Q Ne3 g3 Be4 g2 Ne2+ g1B Rh2 Ra6 Rg2 Be7 f8B Q8d5 f7 Bf6 Be7 Nc6 f8B Nb4 Bd8 Qc4 Bd6 Qdd5 Rg3 Qa8 Ng2+ Kd1 Bd2 c1Q Be1 Nh6 B8e7 Rg8+ Kh7 Ra4 Rg7 Nf7 Bd8 Nc2 B8e7 Bb7 c8N Qa1 Na7 Rc8 Bb8 Rc6 Nb5 Bc8 Nbd4 Qb7 Ba7 Qd5 Rg6 Rc4 Rg3 Rc3 Rg7 Qc4 Rg3 Bh8 Bh4 Bf6 Rg8 Na3 Rg3 Rc1 Rg7 Nc2
R3n2Q/NQ3qP1/1b5p/k3PP1q/PN1r3P/pR1nR3/n3K1b1/5b1R w - - 0 1 illegal: No possible last move
q1NQr2k/nNKQn3/R6P/R1Pb4/P1n1PN2/P1bbr3/N7/1bq1q3 w - - 0 1 legal: proof: g4 a5 d4 e5 f4 h5 b3 c5 dxc5 a4 bxa4 g5 Bh3 Ke7 fxe5 Ke8 Bf4 gxf4 g5 Nf6 Be6 Ng8 Bg4 hxg4 Kf2 b5 h4 d5 e4 f5 c4 Kf7 h5 Kg7 g6 b4 e6 d4 a3 f3 Kg3 d3 Kf4 d2 Ke5 f2 c6 f1N e7 g3 e8Q g2 c5 b3 c7 b2 Qf3 d1Q Qh3 f4 Rh2 f3 Nc3 b1B Na2 f2 Ne2 g1Q Qhd7+ Ne7 Nf4 Nd2 Kd6 Bb7 c8N f1B Rh3 Kg8 g7 Qc1 h6 Nbc6 Rg3 Bfd3 Rg6 Rb8 Rf6 Kh7 g8N Na7 Re6 Qa5 Qed8 Bg7 Rf6 Qa6+ Kc7 Bd5 Nd6 Nc4 Nb7 Qge1 Rd6 Bc3 Rf6 Bbc2 Rb1 Qa5+ Rbb6 Qa6 Rb5 Bb1 Nd6 Rb6 Ra5 Rb2 Nb7 Re2 Rg6 Re3 Rd6 Nc8 Rb6 Qa8 Rba6 Na7 Qf5+ Ng6 Ne7 Re8 Nc8 Kh8 Qfd7 Ne7
q2nbb2/2PP4/3P3Q/2P4r/P2R2RQ/2N2p1p/bk1b1KQQ/r1N3rn w - - 0 1 illegal: No proof kernel
1R4q1/pp6/b4PP1/bBR1r2P/1Pb2p1K/Q3R1R1/PrQ1nB1p/2r4k w - - 1 2 legal: proof: e4 e5 d4 f5 f4 c5 dxc5 Nc6 fxe5 f4 Nc3 Nd4 Nb1 Nf5 exf5 Bd6 Ba6 Be7 Bf1 Bf8 h4 g5 h5 Nf6 Nd2 Ng8 Ndf3 Bd6 Nh4 gxh4 Rh2 Be7 Rh1 Bf8 g4 h6 g5 Qc7 g6 Qb6 Nf3 Qd8 Ng5 hxg5 Kf2 Ke7 c4 d5 b3 d4 c6 h3 f6+ Ke6 c7 Kf5 c5 Ke4 e6 g4 c6 d3 e7 d2 e8Q+ Ne7 Rb1 g3+ Kg1 h2+ Kg2 Be6 c8R Bc4 Kh3 g2 c7 g1R Qa4 Rg2 Qb4 Nc6 Bb2 Nd4 Ra1 Ne2 Bd4 Kf3 Qc2 d1B Qa3 Bb4 Rg1 Ba5 Kh4 Re8 Bf2 Re5 Rb8 Qg8 c8R Ba6 Rc5 Bc4 Rf8 Rc8 Rc1 Rc7 Rb8 Ba6 Qd2 Rc6 b4+ Bb3 R1c4 Rc8 Re4 Rc7 Qc2 Rc8 Rd5 Rc3 Rc5 Bbc4 Bd4 Rf2 Rg4 Rg2 Re3+ Kf2 Rgg3 Kg1 Rd3+ Kh1 Bf2 Rb3 Rde3 Rg1 Bh3 Rf1 Bd7 Rc1 Bb5 Rb2
Q6N/1b1rrrkn/1b1PpR2/4KQ1Q/3p1Q2/1n1Pp3/2PPPq1N/b2R3n w - - 0 1 illegal: Other
3Q1n1r/1q1RPp2/pb2P1pk/5q2/3nQ1P1/3N1r1P/PN3RN1/1N1rqK1b w - - 0 1 illegal: No possible last move, all moves rejected
1bq5/ppQ1rP1q/7p/1P1p1n2/Kr1P3k/2r2Rp1/Q1NR2PP/1R3RNb w - - 2 4 illegal: Other
3nbr2/1nP3Pb/q2Q4/B2PK1Rn/rP1PNrr1/P1NBR1b1/r7/6kq w - - 0 1 illegal: No proof kernel
nK1q1B1n/PBP5/1bPR2N1/2Qr1P2/q3k3/2br2P1/b2R1P1b/n4nqN w - - 0 1 illegal: No proof kernel
4bR2/1bbP1QPk/rBBN4/bPn4q/1P1p4/PKb1P2q/1n2qr1R/3N4 w - - 0 1 illegal: No proof kernel
2Kbnr1q/1N2nr1q/R1PpR3/1B1NPPB1/3q1P2/1bPPr3/4k3/b2b3Q w - - 0 1 illegal: No proof kernel
B3R3/p4Pr1/2rN2bk/2Q2PrP/1NPn3n/B2n1nqn/P3P2R/b2r1K2 w - - 0 1 legal: proof: d4 c5 g4 f5 gxf5 h5 b4 e5 bxc5 exd4 Qd3 Na6 Qf3 Nb8 Qg4 hxg4 f4 Kf7 c4 b5 h4 g5 c6 Kg7 h5 d5 f6+ Kh6 c7 d3 f7 d2+ Kf2 d1R Nh3 g3+ Kg1 b4 Be3 d4 Bc1 d3 Be3 b3 Na3 g4 Ng5 g2 Ne6 d2 Kf2 g1N Bg2 b2 Rh4 b1N Bf3 g3+ Kg2 Qd3 Nb5 Ne7 Ng5 Nbc6 Rh3 Rg8 Ne6 Ng6 Rh1 Nd4 Rh4 Rg7 Bg4 Nh3 Nd8 Bf5 Nc6 Rc8 Bf3 Be7 Bg1 Bf6 Nb4 Be5 Rg4 Be4 Nd6 Nh4+ Kh1 Bh7 f5 Bg6 Ba8 Qa3 Rf4 g2+ Kh2 Bf6 Re4 Qb3 Bf2 g1R Re8 Rg5 Bg1 Qg3+ Kh1 Rb8 c8Q Rb6 Qc5 Be5 Qa5 Rc6 Qc5 Nc3 Rc1 Ncb5 Rc3 Bf6 Rf3 Be5 Rf2 Ndf3 Rg2 Ba1 Rh2 Ne1 Be3 Nd4 Bf2 Rc1 Be3 d1N Bd2 Rb1 Bc1 Nef3 Ba3 Ne1 Qb5 Nb2 Qc5 Rd1 Rg2 Nf4 Kg1 Nbd3 Kf1 Nh3 Rh2 Nef3#
3r1q1R/2bp1N2/1P5K/n2rbqPB/1bPPPn2/3p1P2/RBQ2Nk1/q4r2 w - - 0 1 illegal: No proof kernel
6rb/pb3Rpn/1n1nPP1P/b3B1nN/1P1qk3/1RP2n2/1rNP4/1K1B3Q w - - 0 1 illegal: Other
2q5/p3nP1q/N5B1/2Prr2b/Pp1Pr1kr/QR6/KP1BN2P/rnR4b w - - 0 1 illegal: No possible last move
2N1n3/B4P2/4rrnP/1rbb1k2/1P1rqP1Q/3Ppb1K/2qRPNpB/1R6 w - - 0 1 illegal: No proof kernel
3K3b/3P1PN1/rP3N1p/1Bb1n3/1B1QRP2/1PPR1q1b/bk3p2/bnr2b2 w - - 0 1 illegal: No proof kernel
1BbK4/N2p2q1/2PqPP2/2n1bQq1/kP2P1B1/rnn2R2/3PRp2/1q1n3N w - - 0 1 illegal: No proof kernel
K6b/1N3n2/1PkPbp1b/3N2rP/n2R1R2/Pq1q1P1p/Q1PB1pr1/4q2B w - - 0 1 illegal: No proof kernel
Q2R2r1/1bnP4/bBNP2pR/Nb1PBnK1/k2Pp3/3p1nP1/1rpPq3/8 w - - 0 1 illegal: Other
B1Q1R2r/1Pp1Pnk1/p1b1P2N/P2Pr3/2p5/R7/KP1bb1rp/1BNn1q2 w - - 0 1 legal: proof: f4 g5 h4 gxh4 c4 b5 cxb5 e5 fxe5 d6 d3 Qe7 Be3 Qd8 Bc5 dxc5 Kd2 h5 Kc3 f5 Kb3 Kf7 e4 a6 g4 h3 a4 c4+ Ka2 f4 b6 h2 d4 h4 a5 f3 e6+ Kg7 e5 f2 g5 h3 e7 Nc6 e6 Rh6 g6 Bb7 Na3 Nf6 Nc2 Rh8 Bg2 f1B Ne3 Ng4 Ne2 Nce5 Nc1 Nf2 Ng4 Bc6 Nh6 Nf7 Rg1 h1R Qg4 Kf6 g7 h2 g8B Nd1 Bh7 Be2 Qg8 Bg7 Bhe4 Qf8 Bb1 Rd8 Bf3 Rd5 Rg3 Rg1 Rh3 Qa8 Qc8 Rg2 Rg3 Bf8 Rg8 Re5 Bfe4 Bg7 Re8 Bf8 Bf3 Kg7 Bfe4 Bb5 Bb7 Bc6 d5 Qb8 Ba8 Qa7 b7 Qf2 Bc2 Qf3 Kb1 Qf2 Ra3 Qf1 Ka2 Kf6 Nf5 Bh6 Bb1 Bd2 Nh6 Kg7
b4r1b/1r5P/P3P2r/1qB3n1/3NpQq1/1bn1Pp2/n1PR1PBN/2k1KRq1 w - - 0 1 illegal: No proof kernel
4rrR1/2q1k1B1/N1npq2P/qBb1p2K/n1P4q/3PP2b/1NP3P1/q1Q1R2n w - - 0 1 illegal: No proof kernel
N1Q1bbBb/2rp4/6n1/1p1BP2q/3Rp1K1/1n2P3/1PPP3P/RnkrnN1r w - - 1 3 illegal: No proof kernel forced: bxDB
1K6/p3RpnP/k3BPqb/N1P1r3/Npq3R1/QPB1P2n/2b2Pqb/1r5q w - - 0 1 illegal: No proof kernel
3Qq3/KpBbbn2/bqp1qPR1/1PPqn3/rPNP4/2P2RN1/krB1p3/8 w - - 0 1 illegal: Other
b4K1q/RB1N1PpP/p1pNP1rQ/n7/5BrR/npPP4/rk2r1P1/4r1b1 w - - 0 1 illegal: No possible last move
1bNk4/rb1B2n1/1PnrPP1q/p2rR3/K3n2p/1P1Rp3/P3N1pP/2n1B2Q w - - 0 1 illegal: No proof kernel
nR2r3/3R1KNB/2r1nppp/p2N1PPb/3Pb3/bPp1P3/2Q1Pq2/5bBk w - - 0 1 illegal: Other
nrq1N2n/p1Pp3P/1pn1RKp1/p2P2nB/1B4RP/P3r3/2N1kP2/2Q1bb2 w - - 0 1 illegal: No proof kernel
Kq2b3/N5k1/1q2rn2/1qn2PB1/1Qrb3P/P5P1/bPN1bR1P/2N1Bn2 w - - 0 1 illegal: No proof kernel
2qq4/1BnkP1rq/4b3/1P1P2P1/1q2n2N/KP1P4/1B1bRQ1q/Bb1R3q w - - 0 1 legal: proof: g4 b5 a4 f5 axb5 fxg4 d3 e5 c4 d5 cxd5 e4 Ra6 e3 Ra5 Qf6 Ra1 Qd8 h4 g5 Rh2 a5 Nd2 g3 Rh1 g4 Qc2 exd2+ Kd1 Kd7 Qa4 Ra6 Kc2 Rg6 Qb3 Rg5 hxg5 Ba6 Kb1 Bc8 Qd1 Ke7 Kc2 Ke8 Kb3 h5 e4 c5 f4 g2 e5 g3 f5 a4+ Ka2 h4 e6 h3 b3 a3 f6 c4 Qf3 d1B Qf2 h2 Qd2 c3 Qf4 c2 Bb2 c1Q Qd6 Na6 Bd4 Rh7 Nh3 g1Q Bf2 g2 Qf4 Rg7 Rb1 Bb4 e7 Kd7 f7 Nc7 f8B Bc2 Rb2 Nf6 Bd4 Bd2 Qf2 Ne4 Nf4 Qe1 Ng6 Bb1+ Ka1 a2 Nh4 Qc1 Rc2 Qa3 Bb2 Qb4 Be2 Qc1 Rd1 h1Q Bg4+ Ke8 Bf5 g1Q Bg4 Qgh2 Be6 Be1 Re2 Bd2 Bh3 Be6 Bf5 Bf7 Bc8 Be6 Ba6 Kd7 Bb7 Rf7 Bfg7 Qc6 Bgf6 Rg7 Bc1 Qa6 Kb2 Qaa8 Bc3 Qac8 Bf6 Qc4 Ka3 Qc5+ Ka4 a1Q+ Ba3 Qae5 Bb2 Qf5 Bfc3 Qc4+ Ka3 Qh7 Ba1 Qd4 Bcb2 Qb4#
2N3R1/QPP3P1/p1R1B2r/bBK3Pb/1n4P1/1pp5/1rP1Bq1b/1k3r1r w - - 0 1 illegal: No proof kernel
2RNq1Nr/bP3p2/3P4/2KN1Pk1/qPPRr3/qB1r1p1b/Qqp2P2/8 w - - 1 2 illegal: No proof kernel
b1NQ3N/P1n4p/2PP1B2/4nB2/b3pPrR/1bB2p1P/pK2k2P/2b3q1 w - - 0 1 illegal: No proof kernel
4n1n1/2p1PB2/k1Pn2p1/1NQ1pqr1/6P1/1PpP1B1P/1K3rNR/4qN1q w - - 1 2 illegal: No possible last move
r2N3b/1B1pbqq1/1Q1PPr1P/1b2nbb1/RqPB1P2/5PB1/K2k4/2R1n3 w - - 0 1 illegal: No proof kernel
2QN2q1/1bp1K2P/P4P1r/1N2p1nb/1Rq1P3/2PP3n/1q2R2n/rNB2k1r w - - 0 2 illegal: No proof kernel
5NrB/qb1P4/4p1nR/P3r3/1k2PRP1/rqpK1Q1P/bqP1R1N1/5bn1 w - - 1 2 legal: proof: b4 d5 e3 g5 g3 h5 b5 d4 b6 g4 Be2 d3 Kf1 h4 Kg2 Bg7 Kf1 dxe2+ Ke1 Be5 gxh4 g3 h5 g2 Bb2 axb6 Bc1 Bg3 fxg3 b5 Kf2 b4 a4 Kd7 d4 Kc6 h6 e1R h3 f5 h7 b5 g4 b3 d5+ Kc5 d6 e6 d7 b4 Nf3 b2 Na3 b1Q Nb5 f4 Nd2 g1Q+ Kf3 b3 Ke4 f3 Nc4 b2 Qd2 f2 Nbd6 f1B Qf2 Kb4 Nf5 c5 Qf3 Ne7 Rh2 Qb6 Ra3 Ng6 Ne7 Nc6 Re2 Bb7 Kd3 Rhg8 h8R Nd4 Rh6 Qa7 Rc3 Qg3 Ra3 Qa1 Ra2 b1B Bb2 Qgb8 Ra3 Ba2 e4 Rb1 Ne3 c4+ Kd2 Qg3 Ng2 Qgb8 Rae3 Qg3 Rf2 Ne2 Bh8 Ng1 Ree2 c3+ Kd3 Qgb8 Nf5 Rb3 Nfh4 Ra3 a5 Qb2 Qf6 Rc8 Rf4 Rc5 Qf5 Re5 Qf7 Ne7 Ng6 Qb3 Nf8 Ng6 Nh7 Qc7 Qf6 Rg8 Nf8 Qab8 Qh4 Qa7 Qf2 Qc6 Qe3 Qb2 Qf2 Qa4 Qf3 Qab3
K4R1n/1Q3P1b/Rn6/Pp5b/1N2qbP1/1PRP1r2/q2rBpPr/k1B2q2 w - - 0 1 illegal: No proof kernel
8/Rn2NR1B/2P5/P1pPbRqK/b2r1pnn/rPP5/P1Q4b/1Nr1k2n w - - 0 1 illegal: Other
2n1R1n1/1KP1q1Np/P1bb2P1/3kB1Rq/2qP3P/N4P2/pr1Q4/2r1R1qq w - - 0 1 illegal: No proof kernel
B2K1QBk/rP2P1N1/rb4P1/1P4np/1rp3PP/qb1bR3/N3nB2/1q4b1 w - - 0 1 illegal: No proof kernel
r3r3/P1Qq4/pN2b2P/Prb4R/4Kn2/1PR2Nkb/P1pq2P1/1BrRn3 w - - 0 1 illegal: Other
1Rb2R2/2P1q3/n2Pr2q/Kr1k1bbp/p2N1Q2/2n1P1P1/PP1n1Nn1/B6N w - - 0 1 illegal: Other
1k2qQ2/1r4rP/b2R2P1/2B1pR1p/1Nn1rP2/1q5b/nPBP3P/2KR1rb1 w - - 0 1 illegal: Other
bB3n2/pQ4Pp/BR1PPP1P/4qrbp/N3q2P/RnK1k2q/B7/4rb2 w - - 1 2 illegal: Other
4br1n/1PQNpB1B/2B3b1/1rp1q1P1/1pP3RP/rqN1PK2/1Pn4k/4b3 w - - 1 3 illegal: No proof kernel
r2R4/N2Q1B2/2n1KPN1/pP3P1b/NP1n1P1p/5n2/PRnpk1q1/b2n3r w - - 0 1 illegal: Other
2BNBn1r/5q1P/PB1b1b1P/5Q1p/7r/pK2r1pn/1P3RPP/N1rn3k w - - 1 2 illegal: Other
2rr2Bk/r3b1n1/2q2pKN/5b1p/3NnP1Q/1pr1P2P/1P2bPRP/N3B3 w - - 0 3 illegal: Other
2B3b1/n3K1Qr/1n1r1R1N/1p1Pp3/qbp4R/k1P1PbB1/P2RP2P/1br5 w - - 0 2 legal: proof: g4 e5 b4 h5 gxh5 d5 b5 d4 b6 axb6 Nc3 b5 Nd5 b4 Ne3 dxe3 fxe3 Ra5 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 d4 Ka4 c3+ b3 d5 f5+ Kf3 c5 h6 b5 h7 g5 Qd2 b2 Qd4+ c4 Qc5 b1B Bg2 g4+ Kg3 f4+ Kf2 f3 Kg3 f2 Nf3 f1B Bh3 Bg2 Rf1 Be6 Qc7 Bb4 Nd4 Nd7 Nf5 Bf3 Nh6 Ne7 Kh4 g3 Kg5 g2 Bd2 Ra6 Be1 g1R+ Bg3 Nb6 Kf6 Bg8 Bc8 Ka3 Rd1 Qd7 Rd2 Nc6 Qa7 Qe8 Qd7 Na7 Qg7 Bc2 Rf1 Bb1 Rf2 Rc1 Rf1 Ba5 Rf2 Qg6+ Ke7 Qc2 Rf1 Qa4 Rf2 Na8 Rf1 Rd6 Rf2 Nb6 Rf1 Bb4 Rf2 Bf7 Rf1 Rhd8 h8R Bg8 Rh7 Bg2 Rf6 Bf3 Ng4 Rf8 Rh4 Rfd8 Nh6 Rf8 Rg6 Rf5 Rf6 Rh5 Nf7 Rh8 Nh6 Rh7
1N1N4/1pRnr2P/K2bR3/pRq1nQP1/Pr1k1B1q/5qp1/1PP1qqP1/8 w - - 1 3 illegal: Other
4R3/q1r2P1P/PQp5/1qp1N2k/pNP1b3/P1P1R2q/1qR1Kn1B/br2r3 w - - 0 1 illegal: No proof kernel
BN1n3N/2qBK3/rpP2p1P/qn2p3/1kP1P1r1/bP1Q1r1n/P3r2R/2B5 w - - 0 1 legal: proof: g4 a5 d4 c5 dxc5 h5 b3 hxg4 f3 b6 Nd2 a4 Rb1 a3 Rb2 axb2 f4 e5 f5 Bb7 Bg2 Bd5 Bf1 Be6 fxe6 Rh7 Kf2 Rh4 Ke1 Rh8 Kf2 Ke7 Kg3 b1R h4 g5 c4 d5 e4 d4 c6 Kd6 h5 Kc5 e7 f6 e8B d3 Bf7 Kb4 Ne2 Qc7 Nd4 Nh6 Bb2 Ra6 Bd5 Nf7 Ne6 Nd8 Bc1 Rb2 Nf3 Re2 Nh4 d2 Bh3 Bd6 Qf1 d1Q Ng6 Qd2 Nef8 Rh7 Bg8 Qd5 Rh2 Qa5 Bd5 Rd7 h6 Bc5 Be6 Rd3+ Qf3 Be7 Rf2 Bd6 Bd7 Rc3 Kg2 g3 Qd3 g4 Nh8 Be7 Bc8 Bc5 Bb7 Be7 Qb1 Rf3 Nd7 Bc5 Qd3 Bd6 Kh1 g2+ Kh2 g1N Ba8 g3+ Kg2 Be7 Bf5 Nh3 Bg4 Rf4 Bf5 Rg4 Kf3 g2 Be6 g1R Rh2 Rg6 Bg4 Rf1+ Kg3 Rf5 Kh4 Rf3 Kh5 Bc5 Bf5 Rg4 Be6 Ra7 Bf5 Na6 Nb8 Qd7 Be6 Nc7 Bf5 Ra6 Be6 Rh4+ Kg6 Nb5 Bg4 Qc7 Bd7 Bf2 Kg7 Rg4+ Kf8 Bd4 Ke8 Bb2 Ke7 Ba3
4k3/1p1bP3/3P1p1r/2PRN3/BnQp1Pb1/RK1P2B1/pPn1qr2/r1B3n1 w - - 1 3 illegal: Other
q3K2k/Pn4b1/N1n2p1b/B3p2P/B1p1Nn1R/P1PPr3/1prN1P2/1Qr5 w - - 1 2 legal: proof: g4 h5 e4 hxg4 b4 a5 bxa5 d5 a3 f6 e5 Bf5 e6 Bg6 Nh3 Qd6 Ng1 Bf7 exf7+ Kd8 Ra2 Kc8 Rb2 Qd8 Rb4 Kd7 Re4 dxe4 Ke2 Ke6 Ke3 c5 Kf4 g5+ Ke3 b5 h4 g3 h5 g4 Kf4 b4 a6 e3 d3 g2 a7 b3 Nf3 g1N Bg2 e2 Rh2 e1B Bh1 b2 Qd2 g3 Rh4 g2 Rh2 Na6 Ke4 Ne2 Qe3 g1R Nc3 Nf4 Rh4 Rc8 Bd2 Bg7 f8N+ Kf7 Kf5 e5 Ne6 Rg3 Nc7 Ne7+ Ke4 Nc6 Kf5 Kg8 Ne4 Qe8 Ba5 Bd2 Qe1 Bc1 Nfd2 Re3 Bf3 Rh7 Bd1 Kh8 Nd5 Rc7 Nb4 Qa8 Qf1 Nab8 Na6 Nd8 Qg1 Nbc6 Qh1 Nb7 Qe1 Ng6 Ke6 Rc8 Kf7 Nf4 Bc3 Rh6 Bb4 Rg6 Ba5 Rg1 Qf1 Rg8 Qe1 c4 c3 Re2 Nb3 Rc2 Nbd2 Rg3 Bg4 Re3 Bd7 Bh6 Qd1 Rg1 Qf1 Bg7 Qd1 Ncd8+ Ke8 Rf1 Ba4 Rfe1 Nf3 Bd2 Qa1 Rec1 Qb1 Nc6+ Nb8 Ng2 Rh1 Re2 Rh4 Bdh6 Nfd2 Nf4 Nb3 Re3 Nbd2 Nbd8 Na6 Nb7+
7R/R1pR2bP/Pb2n3/1p1B1b2/1rp1n1k1/BP1Pq1p1/KPP1r3/Q1N2r2 w - - 0 2 illegal: Other
n4bk1/pPK3N1/Pp2pqRP/1PP1QnR1/3p3n/1R2nN1r/3r3P/6Bb w - - 0 2 illegal: Other
4b2k/Bbq5/p2pq1K1/2QPPN2/1p3Npr/PP2P3/rBPqr3/1B4nR w - - 0 3 illegal: No possible last move
q1nr4/1B3pb1/P1bRp1p1/3rPPr1/1qP3Pk/2N1nP2/3QB3/BKNn2q1 w - - 0 1 illegal: Other
BR1Q1K2/1P1PBpp1/1qrr1BP1/1N1pb2P/1N4q1/1k3Pr1/3Pb1n1/2n1q2n w - - 0 1 illegal: No proof kernel
4K3/Pn1nbrp1/6Qp/1p1BPRPr/5bR1/bPpq3P/2P4B/BNk3nq w - - 0 4 legal: proof: e4 d5 b3 dxe4 Na3 a5 Nc4 a4 Nb2 a3 f3 axb2 Qe2 e5 Qd1 e3 Ke2 Bf5 Nh3 Be4 Ng1 Bd5 Kd3 e4+ Kc3 e2 Kd4 e3 Kc3 Be4 fxe4 Bd6 Kd3 Bc5+ Kc3 Bf8 Kc4 Ke7 Kb5 Ke6 a4 Ke5 g4 Kf4 d4 e1B e5 b1Q a5 c5 g5 f5 d5 c4 d6 Nh6 h3 Ra7 d7 Nf7 a6 Beb4 Qh5 c3 Bg2 Nd6+ Ka4 Be7 Qf7 Ba3 Bb2 e2 Qe8 Ke3 Nf3 e1B Qh5 f4 Rg1 Bg3 Nd2 f3 Qg6 f2 Bd5 Bf4 Rg4 Qh1 Rf1 b6 Ba1 Nb7 Kb5 Ke2 Rd1 f1N Nb1 Nd2 Rf1 Nf3 Rf2+ Ke3 Rf1 Ng1 Rf2 Qc8 d8B Qf5 Rf1 Nd7 Kc6 b5 Bb6+ Ke2 Bf2 Qfe4 Bg3 Qd3 Bh2 Ke3 Rf3+ Ke2 Rf2+ Kd1 Rf3 Kc1 Kc7 Raa8 a7 Raf8 Kc6 Rf7 Rf2 Be3 Rf5 Bf4 Kc7 Rf6 Qf7 Rh6 Qe8 Rf8 Qg6 Rf7 Kc8 Rh5 Kc7 h6 Kc8 Bf8 Kc7 Nd6 Kd8 Nb7+ Ke8 Bfe7
RK4q1/rP1q4/PqP2N1n/1r3k1q/PB2N3/Q1P4P/b1b2qp1/1B2Q3 w - - 0 1 illegal: Other
b1knrnnn/P4P2/2bP2q1/PP1Pr1Q1/1QbR4/5N1K/2RN4/Bq1b4 w - - 0 1 legal: proof: h4 a5 b4 d5 e4 g5 exd5 gxh4 c3 b5 Bd3 f5 Be4 fxe4 Qg4 Bg7 bxa5 b4 Qf3 b3 Qd1 Be5 Qf3 Bd6 Qd1 Bb4 cxb4 Bg4 Na3 Bd7 Nb1 Bc8 Kf1 Kd7 f4 c5 d4 h5 a4 e5 g4 b2 Kg2 c4 d6 h3+ Kh2 h4 g5 e3 a6 e2 g6 e1Q g7 c3 a5 c2 b5 e4 a7 e3 f5 e2 f6 Nc6 f7 Rh5 Be3 c1N Qc2 Nb3 Qd3 Qf6 Na3 b1B Nc4 Nd8 Ra3 Re5 Ra1 Bc2 Ra2 Bd1 Na3 Qg6 Bc1 Nc5 Qc4 Nce6 Qa4 Nf8 Nf3 Bb7 Qc2 Bd5 Qc5 Bc4 Qb4 Kc8 Ng5 Qf1 Qb1 e1N Bb2 Nd3 Nf3 Nf4 Ba1 Qfd3 Qb4 Qb1 Rg1 Rb8 Rg4 Ra8 Kg1 h2+ Kf2 h1B Rc2 h3 Kg3 h2 Kh4 Nf6 g8Q Bg2 Qg7 h1B Qh6 Ng8 Qg5 Qh6+ Kg3 N4g6 Rh4 Nh8 Kh2 Qc1 Nb1 Qg6 Nbd2 Qb1 Kg3 Bh3 Rf4 Bd7 Rg4 Bc6 Kh3 Nfe6 Ne1 Bhd5 Nef3 Nf8 Re4 Rb8 Rf4 Ba8 Rh4 Bdc6 d5 Rb7 Rf4 Rbe7 Rd4 Re8
6qr/1b3b2/2p1rP1q/3k1K1p/3P2Q1/B2PRP1P/Pr3pn1/NBN1b2Q w - - 0 1 legal: proof: e4 d5 g4 a5 b4 axb4 c3 e5 g5 f5 Ke2 d4 cxd4 Nd7 Na3 Ndf6 gxf6 Ne7 exf5 e4 Rb1 Ng8 Rb3 Ra5 Rg3 Ra8 f3 e3 Rg2 Nh6 Rf2 exf2 Qc2 Ng8 Qa4+ Qd7 Qd1 Qd8 Kd3 Kd7 Ke4 Kd6 h3 b5 f7 h5 f6 g5 Qe1 b3 Qe2 b2 Qd1 b1B+ Nc2 g4 Bd3 b4 Na3 b3 Qe2 c6 Qe1 g3 Bc2 g2 Bb2 Bb7 Qe3 Nh6 Ne2 g1Q Ba1 b2 Nc1 Qg7 Re1 Ng4 Kf5 Kd5 d3 Qh6 Qf4 Bb4 Qh2 Qg8 f8Q Re8 Qh1 Re6 Re3 Ba5 Qg7 Be1 Ba4 Bc2 Qg5 b1R Bb2 Nh2 Qg4 Bb3 Nc2 Nf1 Ba3 Rb2 Na1 Bc4 Re4 Qd2 Bc2 Ne3+ Kf4 Bb3 Bb1 Ng2+ Kf5 Qh6 Re3 Re4 Bf8 Bc4 Bg7 Kd6 Bf8+ Re7 Qg5 Bf7 Qh4 Kd5 Qg4 Re8 Ba3 Re6
4QR2/4P1bP/1P1Bn1p1/2K2q1p/pBN2r1b/2RP1pP1/2r1knP1/1Qn5 w - - 0 1 illegal: No possible last move
Q1B2q2/1P2P1n1/1P1P2b1/p3b1Q1/2q3rN/1Rb5/PBq1Pn1b/K2rN1kb w - - 0 1 legal: proof: f4 b5 h4 g5 b4 gxh4 c4 e5 cxb5 d5 fxe5 Be7 Na3 Bf8 Rb1 Bg7 Rb2 Bh6 Rc2 Bf8 Rc4 dxc4 d4 Ke7 Kd2 Ke6 Kc3 Kd5 Kb2 Ke4 g4 h5 b6 c5 d5 a5 d6 f5 b5 f4 g5 f3 b7 c3+ Kb1 f2 e6 h3 b6 c2+ Kb2 h4 e7 h2 g6 c4 g7 h3 Bf4 c1B+ Kb1 c3 Be3 c2+ Ka1 Nd7 Bc5 Qc7 Nb1 Ngf6 g8Q Ne5 Na3 Bf4 Qg4 c1B Qe6 Nh5 Qg8 Bf5 Nf3 Ng7 Bg2 f1Q Qe1 Nd3 Bg1 Nf2 Qd1 Ke3 Qe1 Qc2 Qf7 Bg6 Nd4 Bd2 Qb3+ Bc3+ Qb2 Rg8 Qb1 Rc8 Nf3 Rc4 Qd1 Rd4 Nh4 Rd3 Qb1 Qfc1 Bd5 Rd1 Be6 Bce5 Bf5 Qc4 Bc8 Q1c2 Bf5 Ne6 Bg4 Bfg7 Bf5 Bh8 Bg4 Ng7 Bc8 Kd2 Qc1+ Ke1 Nb5 Kf1 Nd4 Bg3 Qb5 Rf8 Qa6 Rf4 Qa8 Rg4 Nf3 Ne4 Bf2+ Kg2 Re1 h1Q Nh4+ Kh2 Be3 Qf3 Rf1 Qff7 Rf3 Qf8 Bg1+ Kh1 Rb3 h2 Bf2 Bgf4 Be1 Nf2 Bc3 Kg1 Bb2 h1B Ndf3+ Kf1 Ne1 Bh2 Rb4 Kg1 Rb5 Ne6 Rb3 Bhf6 Rc3 Ng7 Rb3 Rd3 Qf4 Bc3 Qd2 Bfe5 Qg5 Rd1+
5qqN/k3PPBb/1Rq2P2/p5n1/PrP5/Qr3pqr/2PR1b2/Kn2QB2 w - - 0 1 illegal: No proof kernel
3Kbb2/bP1n3N/n1Q1Pp1Q/kp6/1r1B1qPb/1R4p1/P4PPN/r2Rr3 w - - 1 2 legal: proof: c4 e5 b4 b5 e3 g5 h3 a6 d4 g4 dxe5 g3 Be2 Qg5 Bf3 Qg4 hxg4 Bg7 Bc6 bxc4 b5 Bh6 b6 Bf8 Bb5 axb5 Kd2 Kd8 Kc3 c5 e6 h5 b7 Kc7 e4 Kb6 e5 d5 e7 d4+ Kd2 c3+ Kd3 h4 Ke4 h3 Kd5 c4 Kd6 c2 e6 d3 Qe2 d2 Qf3 d1Q+ Nd2 h2 Qa3 c3 Bb2 c1B Qc5+ Ka5 Kc7 c2 e8Q Qf3 Qg5 Na6+ Kd8 Nf6 Nf1 Nd7 Rb1 f6 Qg7 Qf4 Qg8 Be3 Nh3 c1B Rg1 h1R Qg7 Ba7 Nh2 Rh7 Rd1 Re1 Ng5 Rh3 Nhf3 Rhh1 Bd4 Be3 Rd2 Rhg1 Rb3 Ra1 Qeg6 Rge1 Qe4 Nac5 Ng1 Nb6 N5f3 Qg5 Qc7 Ka4 Qcc6 Bb8 Rbb2 Bd7 Qe5 Be8 Rb3 Nbd7 Nh3 Qh6 Qcd6 Bg5 Qe3 Bh4 Nh2 Ra6 Qc7 Ba7 Rd1 Ra5 Qd2 Na6 Qc6 Qg5 Qe3 Qf5 Qh6 Qf4 Rbd3 Kb4 Ng5 Ra4 Rb3+ Ka5 Nh7 Rb4
3r3k/pn2q2n/PpP4r/q3N1Qp/3rbRK1/PP6/rpBB1PQP/7N w - - 0 3 illegal: Other
nQ1bK3/1bpRBp2/2n2bP1/p1P1b3/2P1pP1Q/P2r4/3kP1R1/1nN2Bn1 w - - 1 4 legal: proof: g4 b5 c4 g5 h4 h5 d3 a5 a3 d6 Nc3 b4 Na2 b3 Rh3 bxa2 Rh2 Ra6 Rh1 Rc6 d4 Rc5 dxc5 Qd7 Qd2 Qf5 Qd3 hxg4 Qd1 g3 Kd2 g4 Ke1 Qg5 hxg5 Ba6 Nf3 Bb7 Ng1 Bc8 Kd2 Kd7 Ke3 Ke6 Ke4 d5+ Kf4 g2 b4 g3 f3 d4 g6 d3 Kg5 Ke5 b5 Kd4 b6 Kc3 f4 e5 b7 d2 Rh6 e4 Rh3 Nc6 b8Q Nge7 Kf6 Nd5+ Kg5 Nb6 Kf6 Na8 Rh5 Bb7 Rh2 Rh3 Nf3 g1B Qe1 g2 Qh4 d1N Nd2 Rd3 Nb3 Be7+ Kg7 Bf6+ Kf8 Bgd4 Ke8 g1N Rg2 Bd8 Bb2+ Kc2 Bc3 Be5 Nc1 Bef6 Be5 Kd2 Bd6 Nc3 Be7 Be5 Rb1 a1B Rb6 Nb1 Ra6 Na7 Rd6 Nc6 Rd5 Bf6 Rd7 Bae5
rk2B1N1/1n6/1R2bp2/pn1P4/5r1N/pQqpQ2P/qpPPPbP1/2RK4 w - - 0 1 illegal: No proof kernel forced: bxLB
5bR1/P2K1Npb/1pn3N1/q4RP1/kqp1r1p1/2P3qB/PPr1pP2/1Q1Q1n2 w - - 0 1 illegal: Other
q3Rq2/1P1R2P1/P2NK1Nr/q3br1n/6P1/Pp2B2k/1RPn1r2/b2bB3 w - - 0 1 illegal: Other
3RN1k1/2RbP1P1/2rB1n2/4K1bN/B2bP2p/4ppnP/p1PR1P2/1n5q w - - 0 1 illegal: No proof kernel
1qn3q1/PrP1P3/NN2Pn1p/2BB1K1P/1r5b/Pq5R/nR2n1b1/1r3k1B w - - 0 1 legal: proof: d4 a5 f4 g5 b4 gxf4 bxa5 e5 dxe5 c5 Qd4 cxd4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Kd5 h4 Kc4 g4 d5 e4+ d3 a3 b5 g5 d4 g6 b4 h5 b3 a6 b2 a7 h6 c3 Be7 e6 Bh4 e7 Nc6 g7 Nf6 e5 Rb8 Ra2 Rh7 Rh3 Qg8 Ra1 Rb4 Rh2 Bb7 Bh3 d2 Bg4 Kd3 c4 d1N c5 Nc3 Nh3 Na2 Nc3 b1R Rb2 Ba8 Kg2 f3+ Kh2 f2 Nb5 f1Q Be3 f4 Nc7 f3 Na6 f2 Bf3 Qd1 Bh1 f1Q Bf2 Qc2 Nf4+ Kd2 Nd5 Ke2 Nb6 d3 Bd4 Qf4+ Kh3 d2 Be3 d1N Bd4 Ne4 Be3 Qff8 Kg4 Qb8 Kf5 Kf1 Bf2 Ndc3 Bg1 Re1 Rd1 Qb1 Rd3 Ne2 Rh3 Qc2 Bd4 Qcb3 Bg1 Nf6 Be3 Na5 Bd4 Nc4 c6 Rh8 c7 Bg2 Bc5 Nd6+ Kg6 Nc8 Kf5 Qf8 g8B Rb1 Bd5 Qf7 e6 Rf8 Rd3 Qg8 Rh3 Rd8 Bf3 Rdd1 Bd5 Rdd4 Nd7 Rb7 Nb6 Rb4
q1R2b2/6B1/qb2B3/R3r1P1/2Pp1q1n/rbPP1k1K/2PPNNn1/r1q2B2 w - - 0 1 illegal: Other
1Kb4N/1N1RP1Pr/2pb3B/r3r1Pq/P2r2b1/Rn1n1B1N/1PPn3k/q7 w - - 0 1 illegal: No proof kernel
n1rBB1K1/q1RqPqp1/P4b1P/5N2/rRP5/1n2Pq2/b2np1PR/1Nk5 w - - 0 1 illegal: No proof kernel
2bk2N1/p2PRPKn/Pr1p2pP/bR6/1q3Bpr/rPpB1q2/3P4/N5N1 w - - 0 1 legal: proof: e4 b5 c4 bxc4 g4 h5 e5 f5 gxf5 d6 e6 Nd7 exd7+ Kf7 Qg4 hxg4 Ke2 e5 Ke3 Ke7 Ke4 c5 f4 c3 h4 c4 a4 c2 f6+ Ke6 h5 Qe7 f7 Qh4 h6 Ke7 Kf5 e4 Kg6 e3 f5 e2 a5 e1Q a6 Qhg3 f6+ Kd8 Rh5 Be7 f8N Rb8 f7 Rb3 Nh7 Nf6 Bd3 Qf3 Rb5 Ra3 b3 Qef1 Bb2 c1R Be5 c3 Bh2 Q1e2 Bf4 Qee4+ Rf5 Qb4 Rb5 Ne4 Nf6 Ng5 Ng8 Nh7 Ne2 Rh1 Ng1 Ra4 Na3 Rh4 Nc2 Ra3 Re1 Bf6 Kf5 g6+ Ke6 Bd4 Na1 Bb6 Ree5 Ba5 Re1 Ng5+ Kf6 Nh7+ Kg7 Qb7 Re2 Qf3 Nf6 Re8 Ng8 Re4 Re3 Rc4 Re1 Rc6 Re7 Rb6
7b/p2NpKpb/6qp/P1Brp1PP/BbkP4/2b3R1/1P2Pn1r/4N1RB w - - 4 6 illegal: Other
4kBqR/qNPq1pPp/r2bPPrP/2bN4/2Bp2Nn/K2P4/4Rn2/5b1q w - - 0 1 illegal: No possible last move
1bnQR2q/P1Rq2Q1/5Pb1/6r1/1kn1P1Pp/q2PK3/P5bN/Q4B1b w - - 0 1 legal: proof: e4 b5 Qh5 a5 Be2 b4 Bd1 a4 Be2 b3 Bf1 a3 Qd1 f5 bxa3 c5 Bb2 f4 Bc3 Qb6 Ba5 Qe6 Bb4 Qf5 exf5 Ra7 Qe2 Ra5 Qd1 Ra8 h4 cxb4 f3 g5 hxg5 d5 Ne2 e5 Ng3 e4 Ne2 e3 Ng1 d4 Nc3 Ra7 Ke2 Re7 Nd5 Re4 fxe4 Bd7 Qe1 Be6 Kd1 Bc8 Kc1 e2 Ne3 dxe3 Qd1 Bg7 Rh2 Bh6 Rh1 Bf8 c4 Kd7 g4 Kd6 a4 Kc5 g6 e1Q f6 h5 g7 h4 a5 b2+ Kc2 b1B+ Kc1 b3 a6 e2 a7 f3 Nh3 f2 Nf4 Kb4 c5 Rh5 c6 Rg5 c7 Bc2 Ne6 Ne7 g8Q Nd7 Nc5 Nb6 Rh2 Bf5 c8Q Bg6 Qa8 Nc4 Qc6 Nc8 Qg7 Bd6 Qcd7 Bb8 Ne6 Bd3 Rb1 Bc2 Bg2 f1B Qd8 Qg3 Nd4 e1Q Nf3 Qe3 Rh1 Qc7 Nh2 Qd7 Rb2 Qc5 d3 Qcd6 Bh3 Bg2 Re1 Bh1 Bf1 Qa6 Re2 Qa3 Rd2 Bg2 Qe1 Bd1 Rc2+ Kb5 Qc3 Bdf3 Qe5+ Kb4 Rc3 N4b6 Rc7 Nc4 Qd4 Bh1 Qe5 Bfg2 Kd1 Qe7 Ke2 Qd7 Rc2 b2 Qd4 b1Q Qa1 N4d6 Ke3 Qbb3 R2c5 Qg8 Re5 Qh8 Re8 Nc4+
nQ2rbqN/6RP/1n1nq3/1p5P/P2Q2nB/Q5rq/1PKNP1P1/1q2k3 w - - 0 1 illegal: No proof kernel forced: bxLB
1Nr3b1/P2Brk2/1N1P4/1b2brP1/K4Qp1/1npbB1P1/1PP2B1r/2qn2Q1 w - - 0 1 illegal: No proof kernel
n4Qqq/1pBRpnB1/1bK1P3/2p2P2/1rk1P1r1/2P1Rn2/1P1P4/QB1b1b2 w - - 0 3 illegal: Other
1n6/2PnK3/NN2Rr2/1r2Nb2/2pPr3/2PP2n1/pPP1kpNb/2Q2bR1 w - - 0 1 illegal: Other
1qNb1Rn1/1Q3p1r/1PP1p1KP/1nR2R2/6R1/b1rb1P2/r2qPP2/1k3n1N w - - 0 1 illegal: Other
r1q5/rBknP2r/n1P1b1KN/2p2Pp1/p1bB1PB1/B1P4R/1b3NP1/2n5 w - - 0 1 illegal: Other
1Br3B1/1bq3p1/1pPNPB2/bP1K1nP1/3Ppk2/3qp1pR/5PB1/1nr3R1 w - - 0 1 illegal: No proof kernel
2N1b1n1/3R4/pR2PPrb/pp1Q1Rn1/P1p1q1PK/3Nk3/PP2rp2/q5R1 w - - 0 1 illegal: Other
n2q1q2/2r2Rrr/1P1R4/P2Q1B1N/4P2n/Prr3P1/2P1NP2/1kb1Kbb1 w - - 0 1 illegal: No proof kernel
1q5K/RBp4P/6PB/2Qp2P1/n1PPq3/1rr2PbP/1p1r2q1/3N1kNr w - - 0 2 illegal: Other
2K1q1R1/P2n2P1/1r2QPqN/1B1Pb2n/b5bN/1P1rPp2/3k1PqB/1r1q4 w - - 0 1 illegal: No proof kernel
kr2b1nR/P1RpP3/8/P2PQP1N/1nrB4/P3p2P/1pp2p2/b2NKbq1 w - - 0 1 illegal: Other
1r3b2/N1rqP3/1nrpp2K/1rpk1B1P/bB1P4/1P2PnP1/2Pb4/1NR2Rn1 w - - 0 1 illegal: No possible last move
1b2N1Nn/1P3P2/r2bP3/3b2q1/qPPpp2r/5NnP/K1R1P1kB/4Qq2 w - - 0 1 illegal: No possible last move, all moves rejected
4Bb1n/P1np1ppQ/P1K1PP1B/q1P4B/1p1r4/1b1PR3/3bP3/1nk4N w - - 0 2 illegal: Other
4r3/5rPq/n1P2BPq/2p1P1p1/N1PK1kq1/1pPB1q2/bP4R1/Qnb1Q3 w - - 0 1 illegal: Other
r2q4/4QPb1/1ppPR3/P2N2rr/P5p1/1PPR1Rbp/1P2N2q/k1K4n w - - 1 2 illegal: Other
B1Q3N1/pBQ3n1/2R2rkq/b4NN1/3B3Q/2pR3R/RnqR1K2/q1b5 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 f5 exf5 d4 c4 d3 h4 gxh4 b6 Be6 b5 Nf6 b7 Na6 b8N Bd5 cxd5 Nb4 b6 Bg7 Bxd3 Bh6 b7 Ng8 Bf1 Bg7 Nd7 Rb8 Nxb8 Bf8 g4 Kf7 f4 e5 d4 h5 d6 c5 d5 c4 d7 e4 f6 c3 g5 h3 d6 h4 g6+ Ke6 g7 Kf5 f7 h2 Nc6 e3 b8Q e2 Be3 h3 Kf2 Qe7 d8R Na2 d7 Nb4 Qc7 Qc5 Nd4+ Kg6 f5+ Kh5 f6 Qc6 Qa4 Nh6 g8B Qe4 Nd2 Qd3 Ne4 Qc4 Ngf3 Qd3 Nf5 Qd6 Bd4 Qb6 Nfg5 Kg6 Bg2 Qb7 Ra2 e1B+ Kf3 Be7 f8Q Bd2 f7 Bc1 Kf2 Qb5 Rc8 Qd3 Nf6 Bd8 Bb7 Qb1 Rd1 h1Q Rd3 h2 Qfc5 Qa1 f8R Qd1 Bgd5 h1Q Ng8 Qc2+ Rd2 Rh7 Re8 Rf7 Re3 Rf6 Rh3 Rf7 Ba8 Rf6 Bdb7 Qc6 Qc4 Qe6 Qac6 Qd6 Qe4 Qf8 Qh4 Nd3+ Ke2 Nb2 Kf2 Nf7 Q4c6 Qh6 Qc5 Nd6 Qc4 Be7 d8R Ne8 Rd6 Ng7 Rcd8 Qb3 Rc6 Bb4 Qe6 Ba5 Qec8 Nc4 Bb6 Qbb1 R8d3 Qc2 Bd4 Nb2
BNRnkqqK/2Rb4/Br1q4/N3bR1R/1npq2R1/7Q/6QN/2B1r1Q1 w - - 0 1 illegal: No possible last move
1k1NnN1q/Rbb2nn1/1q1Q1NQ1/5B2/3Q3R/R3n1bB/2p1N1nB/1N2K3 w - - 0 1 illegal: No possible last move
4n1KQ/N2BbNR1/N1Q2pB1/k5B1/1n1rb3/2b2q1b/1B1Rq1p1/2BQ1R2 w - - 0 1 legal: proof: f4 b5 g4 d5 a4 d4 axb5 d3 f5 Qd5 f6 exf6 g5 Qe4 cxd3 Qe5 d4 Qe7 d5 Qd8 h3 a5 h4 Kd7 g6 Ra6 Na3 Ra8 gxf7 g5 Nb1 g4 Qa4 Ra6 Qd1 Re6 Qb3 Re5 Qd1 Rg5 hxg5 Bc5 Rh6 Ba3 Rh1 Bf8 Kf2 h5 Ke3 c5 Ke4 Kc7 b4 Kb6 d4 c4 g6 g3 d6 c3 Kd5 c2 e4 h4 g7 a4 d7 a3 Ke6 a2 d5 h3 d6 h2 e5 Rh5 Bh3 Rh7 Nc3 Rh8 Nf3 Bb7 Rf1 h1B Ng5 Qc7 d8Q Nc6 d7 Na5 Qa8 Bhc6 d8Q Bd6 f8B g2 Nf7 Ne7 g8R Bf3 Bfh6 Ng6 Bhg5 Bfc6 Rg7 Rh5 Qh8 Be8 Bf5 Ne7 Bg6 Be4 Qc6+ Ka7 b6+ Ka6 b7+ Qb6 b8B Nb7 Nb5 Nd5 Na7 Be7 b5+ Ka5 Bb2 Qd4 b6 Nd6 b7 c1Q Rf2 Qb6 Rd2 Nb4 Bc7 Rh6 b8N Rh4 Na6 Qc3 Rb1 a1B Rc1 Nf5 Bd6 Qg1 Bc5 Qf2 Bce3 Qf3 Rd6 Bf8 Ba3 Qh5 Qdd5+ Qc5 Nd8 Be7 Rf1 Bd4 Bec1 Bd7+ Kf7 Rh3 Kg8 Qe2 Bab2 Rd3 Nf7 Bc3 Qb3 Rd2 Qd1 Qce3 Rd3 Nd6 e6 Bd8 e7 Bh3 e8B Q3f3 Bd7 Ne8 Rd6 Be7 Rd4 Rd3 Rd6 Re3 Rd2 Rd3 Qc2 Rd6 Qd1 Rd4
qq6/2qbnB1K/1RB1N2R/k2NNrRp/3p2Q1/2q2QQ1/r2R4/2Br1R2 w - - 0 1 legal: proof: f4 b5 e4 f5 exf5 c5 h4 g5 d4 cxd4 a4 Na6 f6 Nc7 axb5 Ne6 g3 Bh6 f5 Nf4 gxf4 g4 Nh3 Bb7 Ng1 Bg5 hxg5 Bc8 Ke2 a5 Kd3 e5 Ke4 g3 c4 a4 b4 d3 f7+ Ke7 f8N Kd6 g6 Kc7 c5 d6 f6 a3 f5 d2 f7 g2 g7 h6 f6 a2 c6 Kb6 c7 Ba6 Kf5 e4 Kg6 e3 c8R d5 Qg4 d1R Nc3 d4 Nd5+ Ka7 b6+ Kb7 b5 e2 Rc2 e1Q Ne6 Qe8 Nf3 g1Q Bg2 Qd8 f8Q Qge3 f7 Qg3 Ne5 Rh7 Rd2 Nf6 g8B Kb8 b7 Ka7 b8R Qc7 Rb6 Qec3 Rh5 Bb7 Rg5 h5 Qd6 Qh2 f8Q Bc6 Bf7 Bd7 Rc6 Qf4 b6+ Ka6 b7+ Ka5 b8R Ng8 Rbb6 Qfg3 Rab1 a1Q Bf3 Rh6+ Kg7 Rf6 Kh7 Qa4 Qa3 Ne7 Qg7 Qb2 Bg2 Qa1 Qaf3 Qc3 Qg6 Ra7 Qgd3 Qf4 Qfg3 Qa2 Qdf3 Rf5 Qe3 Ng8 Ba3 Qd6 Ng6 Re1 Ndc7 Ka4 Nd8 Re2 Rf1 Re1 Bc1 Rd1 Be4 Qdc5 Qef3 Ne7 Rf6 Qad5 Nde6 Qa8 Bd5 Qfd6 Ne5 Ra6 Rh6 Qb5 Rc6 Qbb8 Rb6 Ra7 Bb7 Qdc6 Nd5 Qcc7 Rc6 Kb5 Rd6 Ra4 Rb6+ Ka5 Bc6 Ra2
N3r1BN/R1Q2b2/2NQ1bqk/r1rR1Q2/bB1p3p/4R2p/1nB5/2BK1B2 w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 b5 a4 c5 dxc5 e5 axb5 a4 fxe5 Nc6 Na3 Bh6 Nb1 Na5 bxa5 Bf8 c4 h5 g4 f5 e4 Kf7 g5 Kg6 a6 d5 c6 a3 c7 h3 c5 a2 a7 h4 c6 f4 b6 f3 e6 Ba6 c8Q Be2 b7 Rh5 b8B Qd7 e7 Nf6 e8R Ng8 c7 Qg4 e5 Qe6 Nd2 Qf6 e6 Qd4 e7 Qf6 Qf5+ Kg7 c8Q Qh6 g6 Qf4 Ne4 Kh6 g7 Qg5 Qc7 Bd3 Ne2 Bc4 Nd6 Nf6 g8B Ne4 Nd4 Nf2 Nc6 Bg7 Rd8 Bb3 e8B Bf6 Bg6 Ba4 Qd2 Nd1 Nf7+ Kg7 Re8 Nb2 Nh8+ Kh6 Re3 f2+ Ke2 Qg2 Qb4 Rg5 Qbd6 d4 Rg1 Qe4 Rg3 Qg2 Re5 Qg1 Rge3 Rh5 B6h7 Qg6 Rd5 Rg5 Qcc8 Rh5 Bc7 Rb8 a8N Rg5 Qb7 Re8 Ba5 Rh5 Qbc7 Rg5 Rb1 a1R Bb4 Ra3 Ra1 Rh5 Bg2 f1B+ Ke1 Bfb5 Bf1 Rc3 Ra2 Rc5 Ra1 Bb3 Ra7 B5a4 Qfe5 Qg5 Bc2 Qg6 Qe4 Rhe5 Qf5 Ra5 Rc5 Bf7 Rd5 Rb8 Kd2 Rbb5 Ke1 Re8 Kd2 Rc5 Ke1 Nd3+ Kd1 Nb2+
4KRnQ/1q1r2BN/1pq2rNN/6p1/1QN2RB1/1R1p4/2k1B1Qb/2q3nN w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 Qc7 Bd3 Qb6 Bf1 Qd8 a4 h5 g4 b6 gxh5 Bb7 a5 Nc6 a6 Nb8 axb7 Rh6 Bb2 Rh7 Bc1 Rh8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 f4 g5 h4 d5 c4 e5 f6 b3 h6 d4 h5 b2 c6 d3 f7 Bb4 f8Q Ra7 c7 Ba3 c8R Na6 Kc6 Nf6 b8Q Rb7 c5 Re7 h7 Rd7 h6 Nc7 f5 Ne6 Be2 Ng4 f6 Bb4 f7 Ng7 Qc2 Rb7 Ra4 Rg8 h8N Nf2 h7 Nh5 Nd2+ Kd4 Ng6 b1Q h8N e4 Nh3 e3 Nc4 Nd1 Nf2 Qb3 Bb2+ Nc3 Rb1 Re7 Nh1 Rd7 Ba1 Qa3 Rb3 Qc1 Qe7 Re8 f8N Nf6 Nh7 Rf8 Nf7 Qe8 Nh6 Ng8 Qb2 Qf7 Qh2 Qg7 Qg2 Rf3 Rf8 Qf7 Bd1 e2 Qd8 e1Q Be2 Ba3 Qa8 Qed1 Qa5 Qdc2 Qb4 Ra7 Kd6 Qb7 c6 Rf4 c7 Rf2 Kd7 Rf6 Qb5 Bd6 Ke8 Bg3 c8B Bh2 Nce5+ Ke3 Rf4 Kd2 Qc4 Na2 Qb4+ Nc3 Bf1+ Kd1 Nc4 Ne2 Qe5 Ng1 Bg4+ Qe2 Bc3 Qef3 Be2+ Kc2 Bb2 Rf5 Qh8 Qfc6+ Kd8 Rf7 Bg7 Rd7+ Ke8 Ra5 Qh3 Rf5 Qg2 Rf6
1Q3QB1/1p1N1QN1/bK1R1r1R/Bb1q4/pq1N1RpN/3k4/q2Nn3/B3r3 w - - 0 1 illegal: No proof kernel
N1bnb1B1/np4r1/2BNR3/3Q3B/1k1rp3/3pN1pQ/6Qq/K2RRBB1 w - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 gxh5 c5 dxc5 f5 b4 axb4 e4 Be7 exf5 e4 Qg4 Bd6 Qd1 Be5 fxe5 Kf7 Be3 Ke7 Bc1 Ke8 Kd2 Ke7 a4 d5 h4 g5 c4 d4 Kc2 g4 Kb2 g3 a5 b3 f6+ Ke6 c6 Rh7 a6 Rd7 c5 Kd5 c7 Nc6 h6 Rb8 h5 Qe8 a7 Re7 a8N Qd7 h7 Nd8 h8R Nf7 c6 Kc5 h6 Qe8 e6 Bd7 c8B Nd6 h7 Qf7 c7 Nb5 Be3 Qg7 f7 Na3 f8Q Nh6 Nc3 Qf6 Nh3 Qg6 Nd5 Nf7 Bg1 Qg7 Ne3 Nh6 Qff3 Nf5 Re8 Qg8 h8Q Kb4 Ng5 Qg7 Qh3 Nd6 Qfg2 Qh6 Nf7 Nab5 Rb1 Qh7 Ka1 Na7 Qdh5 d3 Qd5 Ba4 Bd7 Rd8 c8B Bc6 Rd1 b2+ Ka2 b1B+ Ka1 Ba4 Bc6 Ba2 Re1 Rc7 e7 Bb5 Be6 Rcd7 Nh6 Nf7 Nhf5 Rc7 Nd6 Rcd7 Qg4 Qh2 Q4h3 Rc7 Rd1 Rdd7 Re1 Nd8 Bg8 Bb3 Rf8 Bd1 e8B Bg4 Rf6 Rg7 Rd1 Bc8 Bh5 Rcf7 Re6 Rf5 Qda2 Rd5 Re1 Rd4 Qd5 Ba4 Rd1 Bb3 Bd7 Bc4 Bfe2 Nf7 Bf2 Ng5 Rhe1 Nf7 Bg1 Nd8 Ba4 Bb5 Bf1 Bbd7 Bc6 Be8
N6Q/kNR1q2b/Nbbp1Q1p/1n1r4/3b2B1/QK3R1p/1NR2NpB/1B6 w - - 0 1 illegal: Other
1RQ4N/3b1Kn1/1RN1Rrn1/N2B2Q1/BQQ5/1rnrrq1b/kb6/1n1Q2B1 w - - 0 1 illegal: No possible last move, all moves rejected
QN1R1Rbb/N1k1B3/1n1bB2r/2q2BQ1/1r6/1N1nK3/pr2nN2/Q1N1R2q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 g4 e5 f4 c5 d4 a5 b4 h5 d6 a4 d5 a3 b6 a2 g5 c4 b5 e4 f6 e3 b7 h3 f7 h4 g6 h2 g7 h3 b6 c3 f5 c2 f6 Ra3 Nc3 Ra5 Ba3 c1Q Ne4 Na6 b8Q Qcc7 b7 Rh4 Nf2 Rh8 Qa8 Be7 f8R Rh4 f7 Nf6 g8B Qe8 b8N+ Kd8 d7 Qc5 Rc1 Kc7 d8N Be6 Ndc6 Rb4 Na7 Bd6 Qe1 Qd7 Rd1 Rab5 Rd3 Rb6 Qa1 Qdc6 Bg2 Qb7 Be4 Nd7 Bf5 R6b5 Kf3 Nb6 Ne2 Rb2 Rc1 h1N Re1 h2 Nc1 e2 Rd4 Ng3 Ke3 h1R Bb4 Qcc6 Rd2 Rh6 Bc5 Be5 Be7 Bh8 Rd3 R5b4 Rd2 Nc8 Rdd1 Nc5 d6+ Kb6 d7 Nd3 d8N Kc7 Rd2 Qc3 Ndc6 Nb6 Nd4 Qh1 Ndb3 Qc2 Bgh7 Bd5 Be6 Qc6 Bhf5 Bc4 Rg1 e1B Rd1 Bec3 Rge1 Bce5 Rd2 Qd6 Qg2 Ne2 Qg5 Ndf4 Rd5 Nd3 Rd4 Qdc6 Rdd8 Qd6 Rg8 Qdd5 f8Q Bd6 Qe8 Qb5 Rf8 Bd5 Qeh5 Qa5 Qf3 Bc4 Qa8 Qb5 Bd7 Bg8 Bde6 Qc5+
1bnN1k2/1Q1rp1b1/Rn1R2rQ/3nKN1B/N1qN4/1bq5/RB6/q2NQB2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 h5 Ke3 c5 Ke4 a5 b4 h3 g4 h2 f4 c4 d4 a4 f6 h4 f5 h3 f7+ Kd7 g5 c3 f6 c2 b6 a3 b5 a2 g6 Bh6 f8N+ Ke8 d6 Bg4 g7 Ra7 b7 Be3 d7+ Kf7 b6 Qc7 d8N+ Ke8 d5 Qc6 Bb2 c1B Ne2 Bh5 Ke5 Qc5 Qe1 Ra4 Ng6 Ra6 Nh4 Bf7 Nd4 Bh6 Nc3 Qc4 d6 Be6 Rg1 h1Q Rg2 h2 Nd1 Qc3 Rg6 Bb3 Nf5 Qhc6 Ne6 h1N d7+ Kf7 Nc5 Nf2 Na4 Ne4 d8N+ Ke8 Rg2 Q6c4 Re2 Nd6 f7+ Kd7 f8R Nf6 g8B Bg7 Bf7 Nc8 Bh5 Nd5+ Rf6 Rh6 Rg2 Rg6 Rc2 Ke8 Rh2 Bgh6 Rd6 Ra7 Rc2 Kf8 Rg2 Na6 b8Q Nab4 b7 Ndb6 Qc7 Bce3 b8Q N4d5 Qc6 Rd7 Qbb7 Bf2 Rc1 a1Q Rc2 Rf6 Rg6 Bg7 Re2 Nb4 Qh1 N4d5 Qh2 Bh4 Qf4 Bf2 Qh6 Bg3+ Ke4 Bh2 Re6 Na8 Ra6 Qg3 Ba3 Rfd6 Ra2 Qgc3 Bb2 Nab6 Re6 Rc6 Rg6 Bb8 Re6 Ba7 Rg6 Rf6 Ke5 Bb8+ Ke4 Rf7 Rd6 Rf6 Ke5 Rg6+
bBnn2kB/RN1p3n/Q2R1R2/3bB3/5rN1/rQ2KQ2/2B1N1q1/2bqr1B1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 h4 e5 f4 a5 b4 g5 c4 a4 h6 g4 b6 g3 c5 d3+ Ke3 d2 f6 a3 b5 g2 b7 a2 h5 e4 c6 Ne7 b6 Ra3+ Qb3+ Ke8 c7 d1B h7 Ra4 h6 Bh5 f5 Ra3 Ne2 g1R Nd2 Ra4 Nc4 Kf7 Ne5+ Ke8 Ng4 Nbc6 b8Q Bg6 b7 Bg7 f7+ Kf8 Qa7 Bb2 b8B Bb7 c8N Ra3 Qa6 Ba8 Nd6 Nc8 Nb7 Qc7 Bg2 Re1 Bh3 Rg8 h8B Nd8 h7 Qh2 Bhe5 Qg2 h8B Bh7 Rg1 Rg6 Bd2 Bg8 Bdc3 Rb6 Bcd4 Rf6 Rd1 a1Q Rd3 Ke7 f8R Bd5 Bb6 Rf7 f6+ Ke6 Rf1 Qd1 Rg8 Rf8 Rg5 Kf7 Rg6 Be6 Rd6 Bc4 Rg5 Bd5 Rgf5 Kg8 f7+ Kh7 Kf4 e3 Rff6 Re8 f8Q Re7 Nd4 e2 Ke3 Rf7 R1f3 Rh1 B6a7 e1N Ne2 Rf1 R3f4 Nf3 Ra4 Ng5 Bad4 Re7 Bb6 Rf4 B6a7 Qgh1 Bg2 Qhf1 Bf3 Qg2 Be4+ Rf5 Bc2 Re6 Qh6+ Kg8 Qh3 Nh7 Bc5 Rf2 Qf3 Rf1 Qc6 Re8 Ra7 Re1 Qa6 Rf8 Kf4 Rf7 Bg1 Rf8 Ke3 Rf7 Rfe6 Rf4 Rf6 Bc1#
2r1RRb1/1b2Q1Nb/1K1N1r2/1QB2B1b/2B2b1R/1R1n3R/2pk1NQ1/q1n3n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 Kd6 e4 Ke5 d4+ Kd6 g4 c5 g6 a5 b6 f5 b5 h5 g7 c4 g5 c3 g6 a4 b7 a3 b6 a2 Bc4 c2 Qd2 h4 Nc3 f3 Ke3 f2 Rh3 f1B Qg2 Nh6 g8B Bd3 g7 Qe8 Be6 Nd7 g8R Nc5 b8R Nf7 b7 Qa4 Ba3 Ra6 Rf1 a1N Rf4 Bg7 Rf8 Ng5 Re8 Nf3 e5+ Kc7 d6+ Kb6 d7 Ka5 d8N Bh6 d5 Nab3 d6 Nc1 d7 Be4 Rf8 N5d3 Bd6 Qa1 Bc5 Rd6 Nb5 Ka4 Bed5 Rf6 Ne6 Bg5 d8Q Bh6 Ng5 Be6 Nd6 Bg8 Qe7 Ka5 e6 Ka4 Bb6 Kb4 Bc5+ Kc3 Bc6 Nde1 Bd7 Ned3 Ngf7 Bg5 Ne8 Bh6 Ng7 Bg5 Rh2 h3 Nd6 Bh6 Rh1 h2 Nh3 Ng1 Nf2 Bf3 Rbe8 Bh5 b8Q Bh7 Qb5 Bg5 Rb8 Rg8 Rf7 Rc8 Rf8 Bh6 Qg5 Bg8 Rh4 f4+ Ke4 f3 Kd5 Bh7 Qg2 Kd2 Rh3 Bf4 Rb6 Ra8 Kc6 Rb8 Rb7 Rc8+ Kb6 Bg8 Qf7 Bh7 e7 Bg8 e8R Bh7 Ng4+ f2 Bf5 Bg8 Qe7 Bh7 Qge4 f1B Nf2 Bg2 Qec6 Bd5 Rh4 Bdf7 Qg2 Be6 Ra7 Bd5 Ra3 Bdg8 Rb3 Nge2 Re1 Ng1 Re3 h1B Reh3 Qd4 Qg3 Bb7 Qg2 Qa1
8/NR1bkn2/b4r1r/2qnnRb1/pBB4N/2Rn2Qn/BN5Q/B2KBQ2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 g4 a5 d4 c5 g5 c4 g6 h3 d6 a4 d5 h4 d7+ Ke7 b6 h2 g7 e4 b5 h3 d6+ Kf6 b7 e3 b6 c3 Bd2 c2 Na3 c1N Bc4 e2 Nf3 Be7 Rb1 Rh7 Nh4 Na6 b8Q Qf8 d8B Qf7 d7 Qd5 b7 Kf7 f6 Bb4 f5 Ba5 Qg3 Bb4 b8Q Nh6 g8B+ Kf8 f7 Be7 Rb7 Bg5 Bf6 Qc5 d8N Nb4 Nc6 Ra6 Ba1 Nd5 Na7 Rf6 Rf1 h1B Rf3 h2 Rc3 Be4 Ba2 h1N Nc4 Nf2 Nb2 Bf3 Qh2 Nh3 Qbg3 Bd7 Bc4 Ke7 f8R Rd6 Ba2 Nf7 f6+ Ke6 Bc4 Rh6 Ba2 Nb3 Qb1 Na5 Qd3 Bg4 Qdf3 Nc4 Qf1 Ne5 Bc4 Rc6 Ba2 Kd6 Bc4 Nh8 Be6 Bf5 f7 Ke7 Ba2 Ndf4 Bec4 Rcf6 Ra8 Nd5 f8B+ Ke6 Bd6 Bd3 Rf8 Nhf7 Be7 Qb6 Bb4 Qc5 Be3 Ke7 Bf2 Nhf4 Kd2 e1N Kc1 Nh3+ Kd1 Ng2 Be1 Ngf4 Bcb3 Ba6 Bc4 Nd8 Qhg1 Nfd3 Q1h2 Rfg6 Rf2 Rf6 Rf5 Ndf7
Q3rk1q/QrB1b1N1/b1rR1N1n/np2Nn2/5r1r/1BR2KQ1/B7/NNR5 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 c5 a4 g5 h4 b5 f4 e5 d4 b3 a5 b2 h6 e4 d6 g4 h7 c4 d7+ Kf7 h5 e3 h6 g3 d5 c3 d6 g2 f6 c2 a6 Ne7 f5 Nec6 a7 Qe8 d8Q Qe4 d7 Qh4 Nf3 g1R Qa5 Na6 d8R Bg7 Qd3 Ne7 Rd6 Qa4 Rh3 Rd8 h8Q Rf8 h7 Qc4 Nd4 Qa4 Kf3 e2 Nb3 e1R Bf4 Rb8 a8B c1N Bd5+ Ke8 Bc4 Ng8 f7+ Ke7 Bg3 Nc5 Qa7+ Bb7+ Bd5 Rfe8 f8N Ne6 Nd7 Nh6 Nf6 Bf8 Qg8 Rd1 h8N Qd4 Nf7 Rh1 Ne5 Ng7 Qc3 Qh4 Bc4 Rd4 Qca5 Rg4 Qa8 Bc8 Q5a7+ Rb7 Bf7 Rh2 Bce6 Rc4 Bf4 Rc6 Bd5 Ne6 Qg3 Ng7 Na3 b1R Ke3 Rd8 Nfd7 Ne6 Nf3 Na2 Qg6 Ra6 Rc6 Nb4 Bc7 Re8 Nfe5 Ng7 Rd6 Rf1 Rc1 Rf4 Na1 Qf6 Ba2 Nc6 Nb1 Rh1 Bfb3 Rb8 Rf3 Na5 Qg3 Bb7 Ke2 Rc6 Rfc3 Ba6 Ke3 Ne6 Ke2 Qh8 Ke3 Rec8 f6+ Ke8 Ke2 Rhh4 f7+ Ke7 Ke3 Rb7 Nf6 Re8 Ke2 Nd4+ Ke3 Bg7 f8N Ndf5+ Ke2 Rd8 Ne6 Bf8 Ng7 Re8 Ned7 Rfc4 Kf2 Kf7 Kf3 Be7 Ne5+ Kf8 Nd3 Rb4 Ne5 Rbf4+
B2k2N1/2R5/RQn1b2Q/p2r2nr/1b2N2K/bBB1rbQ1/1q3BNb/1RB5 w - - 0 1 illegal: No possible last move
q1n5/3p1QQR/B1bQ1Rr1/k2BN1N1/4r2b/7b/n1r1NBKB/r1Br3R w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 e5 b4 g5 c4 a5 f4 e4 Kf2 e3+ Kg2 g4 b6 d3 b7 e2 b5 e1R c5 d2 f6 g3 f7+ Ke7 f5 a4 f6+ Ke6 c6 Kd6 b6 Kc5 c7 Kb4 h6 a3 h5 a2 h7 Re3 h6 Na6 b8N Re8 b7 Re5 Nc3 Re3 Nh3 Re1 Nc6+ Kc5 b8B Kb6 Ng5 Re4 Ne2 Bb7 c8B Nb4 Ne5 Be7 f8Q Ka5 f7 Bc6 Bb7 Ra6 Qg7 Qc8 Bd6 Qa8 f8Q Bd8 Qf4 Ne7 Qff7 Nc8 Rb1 Rg8 h8B a1R h7 Na2 Rb6 Ra7 Ba6 Rc7 Bc4 Be7 Bd5 Bd8 Bc5 Bf6 Bf2 Bd8 Qb3 d1B Qbf3 Bc2 Q3f6 Bd3 Qd6 Bf6 Qgf8 Rg6 Bg7 Bc2 h8R Bd1 R8h7 Bd8 Nd4 Bg4 Ba6 Be6 Ne2 Bh3+ Kf3 g2 Bh6 g1R Q8g7 Rgg4 Bf4 Rgg1 Bh2 Rgd1 Kg3 Bg4 Kg2 Be7 Ngf3 Bh4 Bc1 Bb7 Ng5 Rc2 Qde7 Bf5 Rf6 Bc6 Qd6 Bh3+
3QQ2B/k4b2/1n2bQ2/r2Q1B1q/1R3b1p/5r1R/BnQnK1NN/2N2bRr w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 c5 b4 Kc7 g4 Kb7 g6 a5 g7 f5 d6 h5 d5 a4 b6 h4 e5 a3 g5 a2 g6 f3 b5 f2+ Ke2 f4 d7 c4 e6 c3 e7 c2 e8Q Qg5 d8Q Ne7 g8B Bf5 d6 Nd7 g7 Ra4 Nd2 Bh7 Rh3 Bg6 Bb2 c1R Ndf3 Rc8 Qc2 Nc5 d7 Nd3 Nh2 Nd5 Qf6 Ra5 d8N+ Kb8 b7 Nb6 Bb3 Ka7 b8R Bd6 g8Q Bf7 Ne6 Rc4 Rc1 a1N Ba2 Nb3 Bg2 Rc8 Be4 Nd2 Bf5 Rd8 Be5 Nb2 Re1 Qh6 Qg2 Rg8 Qd5 Rg3 Ra1 Rf3 Rb1 N6a4 Re1 Qh5 b6+ Ka6 b7 Ka7 Bc3 Nb6 Rb1 Nd1 Rb4 Nb2 Rc8 Bc7 b8Q+ Ka6 Qca4 Rd3+ Ngf3 Nb3 Qde5 R8d7 Nd4 Be6 Qg5 f1B+ Kf2 Bf7 Qe4 Na1 Ne1 f3 Ne2 Bf4 Bh8 Nb3 Qf6 Rd8 Qbd6 Ka7 Rc1 Rc8 Qed8 Nd2 Qae8 Re3 Ra1 Rc1 Qc2 Rd1 Ng2 Rc1 Ng3 B1c4 Ne2 Bce6 Qd5 Rh1 Rg1 Rd3 Nc1 Rb3 Bg4 Rba3 Ke1 f2+ Ke2 Rf3 Bf5 f1B+
6QR/K1QBr1N1/1q1Q1B2/1p2n1R1/3Q2N1/Rbb2nb1/r2q3B/Nb2kbQ1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 e5 d4 h5 f4 b5 a4 c5 g4 h4 d6 h3 d5 e4 d7 c4 Kd4 b3 d6 e3 Kc5 c3 f6 Ke6 f7 h2 f5+ Ke5 f6 Kf4 g6 Kg3 a5 Kf2 g5 b2 a6 e2 g7 e1B a7 c2 g6 Ba5 Qd4+ Ke1 Na3 b1B Nh3 Rh4 Rg1 h1B Nf2 Be7 f8Q Bc7 f7 Ba2 Rg5 Rh5 Bh3 Bf6 Ng4 Bhb7 Bf4+ c1Q+ Nc2+ Ke2 Bh2 Ne7 g8Q Bc6 g7 Bb3 Ra3 Ng6 Qe7+ Ne5 f8N Bcd5 Ne6 Bdc4 Na1 Nbc6 Qef8 Qe8 d8B Nf3 d7 Bg3 Kb6 Qd2 Qfd6 Ke1 Qc7 Bfe5 Bf6 Bf1 d8Q Rh7 Q8d6 Bd7 Ka6 Qg6 Kb6 Qh6 Kb7 Be8 Kb6 Bg6 Ka6 Bb1 Kb7 Re8 a8R Re7 Kb6 Na5 Ka7 Nc4 Qf8 Qg6 g8Q Rh6 Qg1 Bc3 Qdd4 Nce5 Ng7 Qe4 Qfd8 Qc6 Q8d6 Rh4 Nh6 Re4 Bd7 Re2 Ng4 Qd3 Qf7 Ra2 Rh8 Qd2 Qg8 Qb6+
RB2N3/r1b1K2Q/Br1Qp3/k1nNQ1qb/2R2r2/1QRB2n1/2r5/1N1rQ1q1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ra4 Kd7 Ke2 a5 Ke3 h5 Kf4 c5 Ke5 Kc7 g4 Kb6 d4 c4 f4 c3 b4 e6 g5 h3 d6 c2 d5 h2 g6 Rh7 g7 h4 f6 h3 f5 Na6 f7 Rh8 f6 Rh7 d7 Rb8 d6 Bb7 Ne2 Bg2 Nf4 Qe8 d8Q+ Nc7 d7 Rb7 Qe7 Rh6 Kd6 Na8 d8N Rb8 Nb7 Rh5 Qe2 Nh6 g8B Rc5 Bh7 Bg7 f8R Bf3 f7 Rc4 Qd7 Qd8 Nd5+ Ka7 b6+ Ka6 Ra3 a4 Bf4 c1R Rg8 Bb2 f8Q Bh5 Bf5 Qh4 Qh7 Nc7 Kd7 Qg4 Nd6 Qg5 b7 Be5 Rg1 h1Q Rg4 Rd1 Qe1 h2 Bg3 Rc8 b8Q Qg1 Qf6 Bf4 Ke7 Rf8 Rb3 a3 Qd8 a2 b5+ Ka7 b6+ Ka6 b7 a1R b8Q Be5 Be4 Nf5+ Kd7 Ra5 Bf4 Ng3 Ke7 Ra2 Rd3 Rc6 Qb3 Rb6 Rc3+ Re2 Qd7 Ra8 Bg6 Ra7 Ra8 Ka5 Ne8 Rc2 Bc4 Na6 Bgd3 Nc5 Ba6 h1R Qc7 Rh4 Qd7 Bd4 Bb8 Be5 Rgc4 Bc7 Qd6 Qg6 Qfh8 Rf4 Qhe5 Qg5+
BBQ1RRr1/b1q1R1r1/2N3b1/1k1bB2N/5bpR/Qqnq1R2/3QN2K/2n5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 a5 h4 g5 e4 f5 b4 c5 d4 f3+ Kh2 g4 e5 c4 b6 a4 e6+ Kd6 b5 c3 b7 a3 e7 f2 e8R a2 h6 c2 b6 f4 h5 f3 h7 Ra5 h6 Ne7 Bf4+ Kd7 d6 Kc6 d7 c1B d5+ Kc5 d6 Ba3 Nd2 Bb4 Qc1+ Bc3 Ne2 Qc7 d8N Kb5 d7 Nbc6 b8B Rg8 h8Q Nb4 b7 Be5 h7 Nd3 Bg2 f1Q Nc6 f2 d8Q Ra7 Ne4 Bf5 Nf6 Bg6 Qa3 Nd5 Re1 a1Q Nh5 Qd1 Qg5 Bed6 Be5 Qb3 Qd2 Nc3 Re7 Bh6 Rf7 Nc1 Rf3 Rg7 Qg8 Bc5 h8R Ra8 Qc8 Ba7 Re8 Bg5 Kg3 Bge3 Rh4 Bh6 Kh2 Bf4+ Neg3 Qd3 Re7 Bfe3 Ne2 f1B Bh1 Bg2 Ref1 Kb6 Rf8 Bd5 R1f3 Bh6 Qd7 N3a2 R8f5 Qdc4 Ncd4 Bf4+ Rg3 Qd8 Bbd6 Qcc3 b8R+ Bb7 Bc6 Bh6 Rgf3 Qd3 Qe6 Qd7 Rd8 Rc8 Bb8 Qc7 Rh8 Rf8 Qc8 Nc3 Rff7 Ba8 Re8 Bg5 Rfe7 Bh6 Bd7 Bd5 Bc6 Bg5 Ba8 Be3 Nc6 Kb5 Rg8 Rh7 Rgg7 Rg8 Rgf7 Rhg7 Rff8 Bf4+
K2RN1rR/1rQqQ2n/1bN1B3/5bqk/5Qpn/2rBn1RN/4RB2/3rR3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 Ke4 a5 h4 f3 d4 f6 b4 Kf7 d6 a4 Kd5 g4 e4 f5 d7 f2 b6 f4 e5 c4 b5 c3 h6 Kg6 e6 c2 b7 f3 h7 a3 b6 a2 e7 Nh6 e8B+ Nf7 h5+ Kf6 h6 Kg6 Nd2 Ra6 Nc4 Qh4 d8R Ra3 Qd2 Qh3 Nd6 Be7 Bd3+ Bf5 Qf4 f1Q Be3 c1R Rh2 f2 Bd7 Rc2 Re1 a1N Be6 Re8 h8R Ra6 h7 Rg8 Ne8 Nd7 b8N Nf8 b7 Ra7 Nc6 Ng5 b8Q Kh5 Qbc7 Qh4 Nh3 Bc5 Rg2 Bb6 Rg3 Qe2 Kd6 f1R d5 Rg1 Bf2 Ng6 Kd7 Qd2 Kc8 Rc5 Kb8 Rc3 d6 Nc2 d7 Rb7+ Ka8 Ne3 Re2 Rd1 Re1 Rg7 Rf8 Rg8 h8R+ Nh7 Rf6 Be4 Rf5+ Qg5 Re5 Bf5 Re4 Ng2 R4e2 N6h4 Rb8 Ng6 d8Q N6h4 Qde7 Ne3 Rd8 Nc4 Bc2 Qd7 Bd3 Ne3
krn1N1n1/B2qQ1r1/r1b5/b1Q2NR1/1p4R1/R1RQr1N1/7q/Rn2BK1B w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 h4 g5 d4 c5 a4 Kc7 f6 b5 f5 Kb7 f7 e5 a5 b3 a6+ Ka7 f6 e4 d6 c4 d5 c3 d7 c2 d6 g4 h6 b2 h7 g3 h5 e3 h6 g2 Bd2 c1Q Na3 b1R Ne2 g1R Nc4 b4 Rh3 Rg2 Ng3 e2 Ne3 Qe8 d8N Rb3 d7 Bc5 f8R Qb2 f7 Bd6 Nb7 Bc5 d8Q Qg7 Qe7 Rg1 Nd6+ Qd7 Nef5 Qc3 Ne8 Nf6 Rg8 Bb6 f8Q Bd8 Rg5 Ba5 Qb1 Rg8 h8R Qb2 h7 Bb7 Qd3 Nc6 Rg4 Rg6 Rg8 Rb8 h8B Ka8 a7 Ra3 Kf2 e1N Bg2 Nf3 Bh1 Rg7 Qc5 Re1 Qfe7 Re3 Kf1 Qc2 Be1 Nd2+ Kg1 Nb1 Kf1 Ra2 Rg5 Qh2 Rg4 Rf7 R8g5 Ng8 Bd4 Ra4 Ra3 Rg7 Ra1 Nd8 Ra3 Nf7 Ra1 Bc6 Ra3 Kb7 a8R Nd6 Ra6 Nc8 Ra8 Bb6 Ra1 Ra2 Ra3 Bd8 Qcd6 Ba5 Ba7 Ka8 Qc5 Qb2 Rh2 Qe5 Rc2 Qb2 Rc1 Qh2 Rcc3 Bc7 Rab3 Ra6 Rba3 Ba5
Q1nbR1b1/1Q1R1q1r/B4r2/np3K1k/4Q1NN/1N2B3/1qrR3r/QbQ4B w - - 0 1 illegal: No possible last move, all moves rejected
R1N3QQ/Nb2r3/kB3K1p/4Q2Q/3R1r2/1Rn1n1b1/1q1bbBN1/q1Q2n1B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 Kc7 f4 Kb7 g4 h6 d4 a4 b4 a3 b6 a2 f6 e6 b5 h3 f5 c4 f7 h2 f6 c3 g5 c2 g6 Bd7 g7 Ba3 f8Q Qc8 f7 Qc7+ d6 Qc4 d5 Ne7 g8Q Ng6+ Kf6 e5 Nc3 e4 Nf3 e3 Ne4 e2 Be3 e1B Qc1 Bg4 d7 Ba5 d8B Bc5 d6 Nh4 d7 Be6 Bf2 Bd6 Bg2 Rh7 Rd1 h1B Rd4 Qb4 Ne1 Bc4 Qe8 Nc6 f8Q Ne5 Qh5 Nef3 Qfe8 Rg7 Qee5 Qb2 Bc7 Bab4 d8Q Nd2 Qh8 Bf1 Qdg8 Re7 Bf3 Bc3 Ng2 Ra4 Rb1 a1Q Bd8 Qb4 Rb3 Be2 Bc7 Nf1 Bd8 Kb8 b7 Ka7 b8N Bd2 b6+ Kb7 Nc6 Nf5 Bc7 Ka6 b7 N5e3 b8R Qbc3 Re8 Qcb2 Bb6 Bc7 Nd6 Rb4 Qd1 c1N Na7 Na2 Qc1 Nc3 Ra8 Bb8 Ndc8 Rc4 Qed5 Bg3 Qde5 Rb4 Rd8 Re4 Rd4 Rf4+ Kg6 Qba2 Ne1 Rg4+ Kf6 Q2b2 Bd5 Be4 Bc6 Bg6 Bf3 Be4 Bh1 Bb7 Ng2 Rf4+
5NnR/r4RQB/1BN1pK2/1bR4q/1rqR4/4Q2N/2BRn1r1/1Qbqr2k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 c6 b4 a4 b6 e6 b5 a3 f6 a2 f5 h3 f7 h2 f6 h4 g5 h3 b7 Be7 f8R Rh6 f7 Rh8 b6 Qe8 g6 Bd8 g7 Qe7 Qf3 Na6 b8Q+ Qc7 b7 Nf6 g8B Nb4 Qa7 Rh6 b8Q Nd3 Bh7 Ng8 Qe3 Bd7 Na3 Nf4 Bfd3 Rg6 Bc2 Bg5 Qb1 c5+ Ke4 c4 d4 c3 Nc4+ Ke7 d6+ Kf6 d5 Rb8 Qab7 Ne2 Na5 Bb5 d7 Qc6 d8R Qc4+ Kf3 Bf4 d6 Kg5 d7 Kh4 Nc6 Rg2 Rc8 Bh6 d8R Bg5 Rd2 Bf4 Bce4 c2 Ba3 c1Q Bc2 Bh6 Bc5 Qd1 Bb6 Bg5 Rd4+ Bf4 Ke4 Bh6 Qec1 Kg3 Ke5 Kf2 Qa3 Bc1 Rfd8 Kf1 f8N Kf2 Qg7 Rb7 Qbb3 Rb8 Rb1 a1R Qab2 Ra7 Qe3+ Kf1 Rc7 Rbb7 Rf7+ Rf2 Ba5 Ba4 Rd2 Rb6 Bhf5 Rg2 R8d4 Rb3 Ra1 Rb8 Qb1 Rb4 Ne7 Bd7 Bb6 Be8 Ra5 Bd7 Rc5 Bb5 Qe4 Kf2 Nc6 Kf1 Nf3+ Kf2 Ng5 Kg3 Rg1 h1R Qe3+ Kh2 Rf1 Rhg1 Rff4 Re1 Rh4 Rf2 Rh8 Rg2 Qeb3 Kg1 Bh7 h2 Qg3 h1Q Qgb3 Qh4 Nh3+ Kh1 Qd3 Nh6 Qe3 Qh5+ Kf6 Ng8+
N2kN2n/1b2p1Q1/1b4Q1/6Bn/4qb2/1rbrr1NQ/B3BR1R/1KQRqQ2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 c5 g4 a5 d4 h5 Kd2 a4 Kc2 c4 f4 c3 b6 a3 d6 a2 g5 h3 d7+ Kf7 g6+ Kf6 g7 h4 b7 h2 b5 h3 b6 Rh5 d5 Ra3 d6 Rg5 Be2 Rg2 Nd2 Ra8 Ne4+ Kf7 f6 Rg3 f5 Rg6 Qf1 Ra4 Bg5 Qe8 d8Q Ra5 d7 Ra7 Rd1 a1B Qc7 Nc6 d8Q Ra3 b8Q Rb3 b7 Ne5 Qdd6 Qc6 Qa7 Ke8 b8N Qa8 Na6 Nf7 Qe3 Nh8 Qc4 Bb2 Kb1 Bb7 Qcd3 Rh6 Qc1 Rh4 Qa3 Rh6 Nd6+ Kd8 f7 Nf6 g8B Bg7 Qg3 Nh5 Nc7 Bd4 Nde8 Rd6 f8Q Bb6 f6 Rd3 f7 Qa5 Na8 c2+ Ka2 Qd2 Qg7 Qe1 f8R Bc3 Bd5 Re3 Rf2 Rd3 Qg6 Re3 Qe5 Rd3 Qeg7 Re3 Qcb2 c1B Kb1 Rd3 Bc4 Bf4 Be6 Rb5 Ba2 Rb4 Nf3 Rb3 Nd4 Re3 Nf5+ Rd3 Rg1 h1R Ng3 h2 Rgg2 Rg1 Qa4 h1Q Rh2 Qe4 Qa3 Rb4 Qbb3 Rh1 Qc1 Rb5 Rhg2 Rh3 Rh2 Re5 Nh1 Re3 Ng3 Ra5 Qbe6 Ra3 Qeh3 Rb3+
1rk2N1B/2nr1Qb1/2nR1qn1/n3N2B/1R1n1BQ1/1NNQRn1p/b4KN1/8 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 g4 e5 g5 c5 b6 a4 b7 c4 b5 c3 f6 c2 f5 e4 f7 h3 f6 e3 b6 e2 d6 h2 g6 a3 d5 h4 g7 a2 Nh3 Qe8 Nf4 h3 Bb2 c1N Qd3 Nh6 g8Q Nb3 Qg4+ Kd8 d7 Qe4 Ng2 Qe6 Nc3 Rh7 Kf2 e1N Rd1 a1N Be2 Be7 f8N Rg7 f7 Nc6 b8B Bf6 b7 Ng8 Bf4 Nc5 b8R Na6 Rb4 Nf3 Rhe1 Nge7 Ng6 Bb7 f8N Nb3 Ne5 Nc7 Qdg6 Rb8 Qf7 Ng6 Rdd4 Bg5 Bd1 Qf6 Re3 Bh6 Ba1 Ne6 Rd2 Kc7 d8N+ Kc8 d6 Nba5 Rdd4 Ba6 Nb7 Bc4 Nc5 Ba2 Nb3 Rh7 Rd5 Bg7 d7+ Kd8 Rdd3 Nc7 Rd6 h1N+ Kf1 Ng3+ Kf2 Ne2 Bb2 Nb5 Ba1 Ned4 Be2 Kc7 Bd1 Rc8 d8Q+ Kb8 Qdd7 Rd8 Qdf5 Rh8 Qd3 Rd7 Qgf5 Kc8 Qfe4 Ng1 Bh5 Nc7 Qf5 Rg8 Qg4 Ngf3 Qdf5 Ne2 Nh7 Qd8 Nd3 Bh6 Nb5 Kb8 Bh8 Qf6 Ne5 Bg7 Qd3 Rgd8 Nf8 Ned4 Qe7 Kb7 Qf7 Rb8 Nc3+ Kc8
1K3r1k/4Bq2/1Qp2b2/1QRRr1N1/3n3r/NRR2rn1/2bQ2rN/rB1B1R2 w - - 0 1 illegal: No possible last move, all moves rejected
q4R2/1Q1nNq1R/1K2pb2/Q1R1NRBN/4bq1B/p1R1Q3/5br1/1B1k1r1n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 c6 b4 a4 b6 e6 b5 a3 f6 h3 b7 h4 g5 h2 f7 h3 b6 Ne7 g6 Nd7 b8R Ra6 b7 Nb6 f5 Ra8 f6 Rh6 g7 Bd7 g8N Rh5 Qb3 Be8 Ne2 Qd7 Ng3 Rf5 Qe3 Bg7 f8R Bg6 Bd3 Rf1 Nh5 Be4 Rbc8 Qc7 b8Q Nd7 Kc4 Ke5 f7 c5 Kb5 c4 d6 c3 Qb7 Nb8 d7 c2 d8B Nf5 Bh4 Bf6 Ne7 Ng3 Ra2 Qd7+ Kb6 Ra4 Rc3 Rb4+ Bb5 Rb2 d3 Qe8 Nd2 Qd7 Rfc8 Qe8 f8R Qf7 Ng6+ Kf5 d4 Kg4 Ra1 Ra2 Nf3 Rb2 Bd2 c1B d5 Rc2 d6 Ra2 Be1 Rg2 d7 Bd2 Bf2 Be1 Bg1 Bf2 d8Q Ne2 R8c5 Ng3 Ne7 Rc1 Ng7 Rf1 Qe1 Kf4 Bd3 Kg4 Ne5+ Kf4 Qb1 Ke3 Qb3 Kd2 Ra2+ Ke1 Rac2 Kd1 Nh5 Be1 Be3 Bf2 Rg1 h1Q Beg5 Qh2 Rh1 Re1 Rf1 Nh1 Qdd5 Qf4 Rc1+ Kd2 Bb1+ Ke2 Qd8 h2 Rh3 Rd1 Qg3 Re1 Rc3 Rd1 Qdc7 Re1 Qe3+ Kd1 Rg1 Rf1 Rf3 Qg4 Rf5 Qf4 Kb5 Rg3 Qa6 Bb7 Bh6 Rg5 Rg4 Ng3 Qca5 h1Q Kb6 Qhf3 Qa7 Nh1 Qa8 Rg8 Rg7 Bd5 Rh7 Rg2 B6g5 Q3e4 Qc6 Qa4 Qb7 Be4 Qb5 Qa8 Qa5 Nd7+
2b5/Qn2B3/1pBb3R/4Bq2/QB1K1BRq/1pr2Q1R/n1r3Nb/Nk2N2r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 a4 Ke5 h4 g5 f4+ Kd6 h6 Kc5 f6 e5 h7 g4 f5 c6 d6 b6 f7 g3 f6 g2 h5 Nh6 a5 Na6 d7 Rb8 Na3 Ng4 h6 Qe8 d8B Nc7 a6 Na8 a7 Rg8 h8R Bd6 f8Q Qf7 h7 Ne3 Nf3 g1B Be7 Rg2 Qa4 b3 Rh3 Nf5 Ne1 Nc7 a8Q Na6 Nac2 Bh2 Qa7 e4+ Kc3 e3 d4+ Kd5 Bb5 Ke4 d5+ Nb4 Ra2 e2 Na1 c5 Bf4 c4 Bc6 Qg6 f7 Rb7 Rg8 Rc7 h8B Rg1 Rc2 Rh1 Bhe5 Qe6 Rg4 Qd7 Nf3 e1Q+ Rd2 Qf2 Ne1 Qh4 Rdg2 Qe6 Rg6 Qef6 Rh6 Qg6 Rg4 Qe6 Kd2 c3+ Ke2 c2 Kd2 Nd4 Kc3 Qf5 Kc4 Ne6 Kc3 Ba6 Qfa8 Nd8 f8B Bb7 Kc4 Bc8 Kc3 Bc5 Kc4 Nb7 d6+ Nd5 d7 Bd6 d8N c1R+ Bc3 Rc2 Ne6 Re2 Bfg7 Rd2 Bge5 Rc2 Bg3+ Ke3 Nf4 Nb4 Nfg2+ Ke2 Kd4 Kd1 Bef4 Na2 Bb4 Rc3 Be5 Kc1 Bgf4+ Kb1 Q8b8 Be6 Qf8 Bc8 Qf7 Rc2 Qd5 Rc3 Qf3 Rc2 Bb5 R7c5 Bc6 R5c3
1N1K3B/n3NRb1/prp3B1/r2rQ1N1/k2B3R/2q1Q3/4Qq1n/N1NbnR2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 Ke4 h5 d4 h3 b4 h2 f4 h4 g4 c6 d6 a6 d5 h3 f6 Rh6 Kf5 e4 g5 e3 g6 e2 b6 e1N f7 Nd3 b5 Nf6 b7 Ne1 b6 Ng4 g7 Be7 f8N+ Ke8+ d7+ Kf7 g8N Bc5 d6 Nf3 Qe2 Be3 Nd2 Nfe5 Nb3 Nd3 Ne6 Qf8 d8Q Qe7 d7 Bc5 Be3 Ne1 Bd4 Qh4 Qg5 Rh5 d8B Bf8 B8f6 Nd7 b8Q Qf2 b7 Nb6 Qbe5 Bg7 Ne7 Rb8 Rb1 Ke8 Na1 Kd7 Q5e3 Kd6 Kg6 Nf3 Kf7 Ne1 f5 Bd7 Bg2 Nc8 Be4 Na7 Rc1 Rd8 b8N Bc8 Rc4 Rd7 Ke8 Rb7 Qf1 Rb6 Kd8 Bd7 Ne2 Be8 Rg1 h1R Rb4 h2 Nc1 Bg6 Qfe2 Bf7 Nf8 Bb3 Ne6 Bd1 Rf1 Rg1 Bb1 h1Q Bc2 Qe4 Qgf4+ Qe5 Ng5 Nh2 Bb1 Bf8 Bh8 Bg7 f6 Rg3 f7 Rg1 Nh7 Rgg5 f8R Rf5 Qfe4 Qc5 Bc2 Qc3 Rf7 Rd5 Q4f4+ Rhe5 Bg6 Ra5 Qfe4 Rec5 Ng5 Rd5 Bf6 Rd3 Rd4+ Kc5 Qe6 Kb5 Qd6 Qf3 Rh4 Qf2 Bd4 Ka4 Qde5 Rd2 Bf5 Rdb2 Bd3 R2b5 Bg6 Rd5+
4B1Q1/1n1Q3p/kB1Q4/r1nB2R1/2r1NqNb/p5q1/1R1bNn1K/3NRbN1 w - - 0 1 illegal: No possible last move, all moves rejected
1rR3b1/1prq3p/8/2rNRBRb/5BBN/3K1nnN/2Qb3q/QN1Q2Nk w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 f4 e5 d4 c5 g4 e4 a4 c4 g6+ Kf6 a5 e3 g5+ Ke7 d6+ Kd7 a6 Kc6 f6 Kd5 f7 Ke4 d7 b3 f5 b2 g7 c3 g6 c2 a7 Be7 f8Q Qa5 d8R Nh6 g8N Qb4 d5 Bd6 f6 Nc6 f7 Bf5 g7 Qc5 Nf6+ Kf4 g8B Kg3 Rc8 Bd7 Rh5 Nf5 Rg5+ Kh2 Bh3 Kh1 Kd3 e2 Ra5 e1Q Bg4 Ng3 Bf4 Rb8 a8Q c1R Qa6 Bc7 d6 Qef2 Nd5 Be8 d7 Qh2 d8N Qe7 Ne6 Qd7 Qc5 Nd4 f8N Nf3 Qcc2 Bh5 Ng6 Bd6 Nh4 Bb4 Bf7 Bd2 Bg6 Rg8 Re5 Rg7 Ng5 Re7 N5h3 Rg7 Qa4 Rc5 B6f5 Rf7 Qac2 Rg7 Nc3 b1B Qa8 Ba2 Nb1 Qe8 Rb5 Rgc7 Qa5 Bb3 Qa1 Qe6 Rb6 Qf7 Rg6 Qd7 Rg5 Qc6 Ne7 Bg8 Nd5 Qd7
k1Bq1Q2/1b1BbNNR/5N2/p1bbB3/2Np2b1/K1NQ3Q/1Rr2rn1/5n1R w - - 0 1 illegal: No possible last move, all moves rejected
nB4RQ/b3NBn1/1BrK2R1/Q2bpq2/2RNQ3/b3R1p1/4bk2/1r1n1N1R w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 g5 b4 a5 h4 d5 f4 d3 f6 g4 b6 g3 h6 d4 h7 a4 h5 d2 b7 Ke3 f5 d3 h6 a3 b5 a2 f7 Qd7 f6 Ra4 b6 Qe6 Qe1+ Kf4 Qe4+ Kg5 Ne2 Nc6 b8N Ra3 b7 Bd7 Nd4 Bg7 f8Q Rb3 f7 Nb4 Qd8 Bf8 Nbc6 Nf6 b8B Nh5 Qa5 Nd5 Bg2 Rg8 h8Q Nc7 h7 Ng7 Re1 Qf6 Re3 d1N Nd2 e5+ Ne7 Rb1 Nf1 Qf5 Kd6 d2 c5 Be6 c6 Na8 c7 Bd5 c8R Kh5 Rc4 Kg5 Qc2 Kg4 Ba3 Kf4 Bc5 Kg4 Bf3+ Kh3 Bg4+ Kg2 Bh5 Kf2 Bca7 Nb2 Qca4 d1B Bb6 Be2 Qc2 Nd1 Qe4 Rc1 Rb1 a1B Rbb4 Rc3 Rc6 Rc5 Rc4 Bb2 Bg6 Ba3 Bh5 Ne6 Bg6 Bh6 f8R Ng7 Bf7 Bf4 Rd8 Re8 Nc8 Re7 Rg8 Rb7 Ne7 Bh6 B6a7 Rb1 Bb6 Ne6 Rcc8 Bg5 Rg6 Ng7 Rg8 Ne6 Qf6 Ng7 h8R Bf4 Rh1 Bg5 Rec3 Bh6 Qfh4 Be3 Qh8 Bd2 Nb3 Be3 B6a7 Rc8+ Bc5 Bd4 Re3 Rc7 Bb4 Bb6 Bc5 Ba7 Nd4 Rc8 Rb4 Rc7 Bb6 Rc5 Rc4 Rc6+
2BrNKRQ/Nn1R1r1Q/kq1rp2Q/1n6/4NRp1/2bq1B1Q/1B1rQ1b1/8 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 g5 Kc4 d5+ Kc5 Kd7 f4 Kc7 h4 Kb7 b4 g4 c4 d3 b6 a4 b5 a3 h6 d2 f6 a2 f5 d4 h5 d3 h7 Bd7 h6 Bg7 f7 e6 Kd6 Ra6 f8N Bf6 c5 Ra5 c6+ Ka8 b7+ Ka7 b6+ Ka6 c7 Bc6+ Nd7 Bh4 c8B Qf6 Be2 Qc3 f6 Qc4 f7 Rg5 f8Q Bg2 Nf3 Qc2 Bb2 Rg6 Rf1 Nf6 Ke7 Bf2 Nd4 Ne8 Bf3 Ng7 Nb5 Qc1 Qe2 d1R Na7 Be1 Nf6 Qc2 Ne8 Rd2 Nc3 Nd7 Ne4 Rf6 Rd1 Nc5 b8Q+ Nb7 Qg3 a1Q Qh3 Qab1 Rf2 Rg8 h8Q Qb3 h7 Nf5+ Kd7 Qc3 Qfh6 Nd6 Ke7 Nb5 Q8g7 Rgf8 h8Q Qb3 Qgh7 Q1c2 N8d6 Rd8 Ne8 Qb1 Rc1 Rf4 Rc7 Rd6 Rd7 Qc4 Ng7 Rf7+ Ke8 Qc7 Nc3 Rd5 Rd8 Rc2 Ne4 d2 Bd7 Bh1 Bg2 d1R Rf4 Nc5 Bf3 Bg2 b7 Rf8+ Ke7 Bc3 b8R Nb7 Rbc8 Qb6 Rc7 Rf6 Rg8 Rf7+ Ke8 R1d4 Bc8 Rcd2 Re7 Qd3 Rc7 Re7+ Kf8 Rd8+ Ne8 R4d6 Rd7 Rf7+
1Br1KB2/Q1r1R1pQ/1bn1r3/N2R3Q/1RqpQ1B1/3N2p1/3Q1n2/3Nbbk1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 e5 f4 d6 c4 e4 b4 a4 h4 e3 b6 a3 c6 g3 c5 a2 b7 e2 b5 e1B c7 Bc3 b6 Ra7 c6 Ra8 h5 Ra6 h6 Nd7 b8R Be5 b7 Ra3 h7 Rc3 Nf3 Nc5 Rh5 Nd7 Bh3 Rb3 Bg4 Rb4 Ne1 Nh6 Qd2 Rb3 Nc3 Rb1 Nd3 Ng8 Nd1 Kf7 f6 Kg6 Ke6 d5 f7 Bc5 f8Q d4 Qe7 Bed6 Rd5 Ne5+ Qd7 Kh6 f5+ Qg5 f6 Nf7 Ba3 Bb6 Bb4 Bf8 Bd6 Rc1 Rb1 a1R Rb4 Ra6 Bf4 Nd6 f7 Ne4 Ra8 Be7 b8N Nf2 f8B Bd8 Kf7 Ne7 Ra7 Rc5 Be6 Kh5 Bg4+ Kh4 Ke8 Qe5 Qe6 Qe2 Qe4 Bf5 c8Q Ba5 c7 Re6 Nc1 Qc4 Qa6 Bb6 c8Q Rc7 Qd7 Rg8 Nd3 Nc6+ Kf7 Be7 Qb5 Nd8+ Ke8 Rh8 Nc6 Rg8 Bh5 Kh3 h8Q Kh2 Na5 Bh3 Bg4 Kg1 Qhh7 Bf1 Bd6 Rc5 Bb8 Rc7 Rd6 Rh8 Qbh5 Bg5+ Qe7 Rg8 Rd5 Bh6 Qde1 Bd2 Q1e2 Be1 Qd2 Rh8 Q7f5 Rhh6 Qh7 Rec6 Qc5 Rc8 Re7 R6c7 Qc6 Rg6 Qa8 Re6 Qa7 Nc6+
k1B2bQN/1n1bB1RR/B5B1/8/N1p4q/1r1p1rr1/2BQ1KQp/1N2n1Rq w - - 0 1 illegal: No proof kernel
2B2qrk/1B3Bnp/2NB2Rq/1Q4Bn/r2R2b1/6p1/Q1RbN1Np/3QK2b w - - 0 1 illegal: Other
Q1n1qN2/p2q2bK/1N2RrB1/2Q2NpR/2N1R1pB/n3Nq2/b3r3/3Q1B1k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Ke3 c5 Kf4 f5 b4 g6 d4 c4 h4 c3 e4 c2 d6 Ke6 d7 Bg7 d5+ Kf7 e6+ Kf6 h5 Qc7+ d6 Na6 d8N Qe7 h6 Nc7 b6 Qd7 h7 Rb8 b7 Ne7 b5 Ra8 b8R Bf8 b6 Na6 b7 Bg7 Ne2 Qc7 Ra4 Qa5 d7 Nc7 Nd4 Qd5 Rh5 Qa2 Nd2 Qa1 Nc4 Rf8 h8Q Qb1 Ne3 Nc6 e5+ Ke7 Kg5 f4 Nf7 f3 d8N f2 Nd6 Qa2 Ndc4 Rf6 Qh7 Nb5 Ndf5+ Ke8 e7 Na3 Bd2 Kd7 Ne6 c1Q Be1+ Qad2 Nf8+ Kc7 e8B Qd7 e6 Ne7 Nb6 Kc6 Re4 Qd2 Bf7 Qe8 Nc4 Qdd7 Qh8 Nd5 e7 Nb6 Qh7 Qc7 Qh6 Be6 Rd8 Kc5 b8N Nc8 Nbd7+ Kc6 Ndb6 Qcd7 Bg2 f1Q Bh4 Qf3 Bf1 Qb7 Rd5 Qbd7 Rde5 Bd5 Re6+ Kc5 Nb2 Ba2 N2c4 Rb8 Na8 Rb1 Nab6 Rb2 Qh8 Re2 Qg8 Bh8 Kh6 g5+ Bg6 Bg7+ Kh7 Kb4 Qd6+ Kc3 Qc5 Kd3 Qh8 Qed8 e8Q Q8e7 Qd8 Qe8 Na5 Kd2 Ng3 Ke1 Nac4 Kf2 Ngf5+ Kg1 Qg8 Qde7 Qd1 Kh1 Qf7 Qb5 Qe8 Qed7 Qd8 Qe8 Q8d5 Qa4 Qa8 Qad7
n2rbN2/R1B5/Rr3Q1B/Q3NB2/pRnRq1N1/5Q1p/k1p2R2/2bn1n1K w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 Kg2 a5 d4 e5 g5 e4 b6 c4 b7 c3 f6 c2 b5 e3 f5 e2 g6 Rh6 g7 Be6 f7 Rf6 b6 Bd7 Rh2 e1N+ Kh1 h3 Na3 h4 Rf2 h2 Bh3 Nd3 Bh6 Ne5 Nc4+ Ke7 Nf3 Nd3 Nce5 Kd6 Ng4 Be6 Nfe5 Nc6 b8R Bd7 b7 Qe7 Qf3 Nb2 Ra2 Re6 f6 Nd1 Rd8 Qe8 b8R Nge7 g8R Nc8 Rb4 Nb6 Rg6 Rb8 Ra1 Na8 Ra3 Be7 f8N Rc8 f7 Bg5 Rg7 Bc1 Rh7 Rb8 Raa4 Rg6 Ra3 Rg8 Rg7 Rb6 Raa4 Kc7 d6+ Kb7 d5 Ka6 Ra2 Qe6 Ra3 Be8 d7 Qf5 d6 Qe4 Rd3 a4 Rdd4 Ka5 Rc8 Ra6 d8B+ Rb6 d7 Rh8 Bc7 Rg8 Kg2 h1N d8Q Ng3 Rg6 Nf1 Kh1 Rh8 Rb8 Rg8 Rb7 Rh8 Nfd7 Rg8 f8Q Rh8 Qff6 Rg8 Nd3 Ne5 Nf8 Nc4 Nde5 Rh8 Ne3 Rg8 Bf5 h3 N3g4 Rg7 Qg5 Rd7 Qdf6 Rd8 Rb1 Ndb2 Ra7+ Kb4 Qh5 Ne3 Qhg5 Ka3 Qh5 Nd1 Rb4 Ka2 Qhg5 Nf1 Qd2 Nce3 Qc3 Rdb8 Qc5 Nc4 Qa5 Rc8 Qh8 Rb7 Rga6 Rd8 Qf6 Rb6
4n2Q/1q3r1K/RNN3p1/2pNR2R/BB1Q2Q1/2N1b3/b1N1p1pq/n1r2B1k w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Ke3 Rh7 Ke4 Kd6 h4 c5 a4 b5 d4 e5 f4 g3 f6 b4 f5 b3 h5 g2 f7 b2 h6 Ra6 f6 Qe7 Nh3 Qb7 Nf4 Qc7 Bd2 Qb7 Qg4 Qc7 Rh5 Bb7 Kf5 e4 Kg6 Ra8 a6 e3 a5 e2 a7 Be7 f8R Ba6 f7 Bf6 Re8 Bg5 f8N Bd8 N8e6 Bb7 a6 Rh8 h7 Kd7 d6 Nf6 d5 Rf8 h8Q Nc6 Bc3 Rb8 a8B Nd4 a7 Nc2 Ra6 Rf7 Ba5 Na1 Nc3 Bc6 Bb7 Bb5 a8N Bc4 Bc6+ Kc8 Qg3 Ba2 Nd4 b1Q+ Nc2 Rb3 Re3 Ne8 Ba4 Bg5 d7+ Kb7 Kh7 g6+ Kg8 Rb6 d8Q Qb5 d6 Kc6 d7 Kd6 Re7 Qbc6 Qg4 Rb1 Nb6 Q6b7 Bb4 Rc1 Qc8 Bh6 d8N Qcb8 Qh4 Q8c7 Nfd5 Be3 Nc6 Qcb8 Rd7+ Ke6 Q4d4 Qf4 Rh6 Kf5 Rh5+ Kg4 Re7+ Kg3 Ree5 Kf2 Qg4 Kg1 Qg7 Qh2 Qh8 Ng7 Kh7 Kh1 Qd2 Qc8 Qd3 Qb7 Qdd4 Ne8+
b1B5/NqQN4/1r3b1k/B3R3/4Rprp/2bR2B1/1qKRNnpR/5R1R w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 b4 Kf7 d4 Kg7 Kd2 a5 e4 h5 g6 c5 e5 a4 e6 c4 b6 a3 d6 a2 b5 c3+ Kc2 g3 e7 g2 e8R Qh4 d5 Qh2 d7 Kh6 d8R Bd7 f6 Rh7 b7 Ba3 b8R Bg4 f7 Rh8 f8N Qh3 d6 Kg5 g7 Rh6 d7 Qh4 b6 Qg3 b7 Rb6 Qd6 Rb4 Be3 Rb6 Ba6 Be6 Ne2 Bf5+ Re4 Bg6 Qc7 Bd6 Na3 Qf3 Nb5 Be5 Raf1 a1B Na7 Bf7 Bf2 Nh6 Bg3 Ng4 g8R+ Kh6 Rg5 Bf6 Rge5 Nf2 Rbc8 Be6 b8R Bd5 Rh2 h4 Rfh1 Rc6 Rbb1 Rb6 Rbf1 Bb7 Rb8 Bc6 Bc8 Bd5 Kc1 c2 Kd2 Bc3+ Kc1 Rd6 Rb2 Rb6 Rb3 Rab8 Rb2 Ba8 Rb3 Bb4 Rd3 R8b7 Kb2 c1Q+ Kb3 Qa3+ Kc2 Bd2 Rde8 Bc3 d8B Qb4 Nd7 Rb8 Red4 Qb7 Rd2 Rb5 Ree4 Rg5 R8e5 Rg4 Rdd5 Q7b5 R5d3 Rb6 Be7 Qd4 Bb4 Qdd5 Ba5 Qb7 Nd4 Qb4 Ne2 Qb2#
2bb4/RK1N3n/R1R1r1k1/B1B3Nr/2qN1b1b/Nbq1N3/4NQnN/3B2n1 w - - 0 1 illegal: No possible last move
k2N1qB1/rN4n1/R1n1b1Rb/R2rn3/B2R3R/1pb5/q2R1q2/R3BQNK w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 f4 e5 Kf2 b5 Kg2 g5 d4 c5 a4 Kc7 a5 Kb7 f6 g4 d6 c4 d5 e4 h6 e3 f5 b3 f7 b4 a6+ Ka7 h5 b2 f6 e2 h7 e1B h6 c3 d7 c2 d6 g3 Bb5 b3 Nc3 b1Q Bd2 c1N Ne4 Be7 f8R Ne2 f7 Nd4 Rh2 Bb7 Kh1 Nf3 Nc5 Qb2 Ba4 Qc7 d8N Qa3 d7 Bc8 Ncb7 Nf6 Rg8 Bd6 f8R Qb4 Rg6 Ne8 Rf5 Bf4 Ra5 Qf8 Rg2 Rg8 h8R Ne5 h7 Nbc6 Bb4 Qb6 Rd2 Ng7 Qf3 Bh6 Qf1 Qbf2 Bc3 Kb8 a7+ Kc7 Rd4 Qa2 Bb4 Bc3 Ra6 Bb2 Be1 Bc3 Ra5 Rb8 a8B Kb6 Nd6 Rb7 Rd2 Ra7 N6b7 Kc7 Rd4 Kb8 Rd2 Qf6 Ra6 Re8 Rf8 Re6 h8R Rd6 Rd4 Qe7 Rf5 Qf8 Rh7 Rd5 Rd2 Bg5 Rh4 Be3 Ne6 Bf4 d8R Bh6 Rd6 Bd7 Ned8 Be6 Rd7 Ra5 R7d4 Rd5 Na5 Nh5 Bb7 Ng7 Bc8 Ka8 Nab7 Bf7 Be6 g2+ Kh2 Be8 Bg8 Bd7 Rff6 Bf5 Rd6 Be6 Ra5 Nb8 Rb6 Nbc6 Rba6 Bf7 Nf3 g1Q+ Kh3 Qg4+ Kh2 Qf4+ Kh1 Be6 Ng1 Qf2
bK1RNr1k/n1N1bbN1/1n2pN2/4N3/1R3rN1/QB5B/1n2q2B/R2Nn2q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 Kc5 a5 g4 c6 d4 a4 b4 h3 f4 h2 g5 h4 g6 h3 d6 a3 d7 a2 b6 Ra3 f6+ Kh6 d5 Ra6 b7 Rh7 f7 Kg7 b5 Ra3 d6 Rb3 f5 Rh5 b6 Rh4 f6+ Kh8 g7+ Kh7 Qf3 Re4 Bf4 Qc7 d8N Reb4 d7 Rd4 Ne6 Rbd3 d8R Ra4 Nc3 Ra8 Nd1 Rd7 Qa3 Rd4 Nf3 Rb4 Rb1 a1N Ne5 Nc2 Ng4 Ne1 Be5 Qd7 Nc7 Qd2 Ne8 Rf4 Rb4 Qe2 Rg1 h1Q Bg2 h2 Bh3 Nh6 g8B+ Kh8 Rf1 Be6 Rg1 Bg7 f8N Bf7 Ne6 Nf5 N6c7 Nd4 Bd6 Bf8 Be5 Bh5 Bb3 Nb5 Bd6 Na7 f7 Bh6 f8N Bf7 Nfe6 Bf8 N6g7 e6 Rf1 Be7 Rg1 Bf6 Be5 Nd7+ Kd6 c5 b8N c4 b7 c3 Nc6 c2 b8N Nb6 Nd7 c1N Rf1 Bh4 Ndf6 Ncd3 Rg1 Nb2 Rf1 Rc4 Bg3 Rf4 Nce5 Qhg2 Rg1 h1B Bh2 Qgf1 Ncd5 Be4 Kc7 Qff3 Kb7 Qh1 Kc7 Bf2 Kb7 Bc5 Kc7 Be7 Kb7 Nc6 Ndc7 Na7+ Rd5 N6a4 Nd6 Rc8 Ndf2 Rg8 Nde8 Ned3 Ra1 Ne1 Nd1 Nb6 Kb8 Rf8 Rd8 Ba8
5rB1/1KB2B1b/R2p1N2/1Nbqn2B/3Q1p1k/B5qB/N3R2n/nRB1rb2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 f5 b4 a5 h4 g5 e4 f4 c4 d6 h6 d3 h7 a4 c5 a3 h5 a2 b6 d2 b7 Ra7 c6 Nd7 b8B Ra4 h6 Ngf6 c7 Ra3+ Nc3 Ke6 b5 Ng8 b6 Ndf6 b7 Ra5 Nge2 Ra8 Bh3+ Ng4 Nb5 Ra5 Nec3 Bd7 c8B Nf6 Bc7 Ra8 b8N Ke7 e6 Ra7 e5 Rg8 h8R Ra4 h7 Bg7 Rh2 Qf8 Rb1 a1N Na2 Re4 Re2 Qf7 Ba3 Bc6 Nd7 Rf8 Qa4 d1B Qd4 Bb3 Rg8 Bcd5 h8B Bdc4 Bb7 Bc2 Bd5 Nf2 Bc1 N6g4 Nf6 Nd3 Ba3 Ra8 Rb8 Qh5 Rb6 Rf8 Ra6 Qf7 Rd2 Re1 Re2 Nh2+ Ke4 g4 Bc1 g3 Ba3 B4b3 Bc4 g2 Kd5 g1Q Kc6 Qg5 Kb7 Qg3 Nd5+ Ke8 Qe3 Qg5 e7 Qgf5 Rf2 Qg4 Qa7 Kd7 e8B+ Ke6 Qc5 Kf5 e6 Kg5 e7 Qg8 Bh5 Kh4 e8B Bd4 Qb6 Be3 Bhb2 Ne5 Nf6 Qg3 Bc1 Bh7 Bd5 Bc4 Qa7 Bf1 Re2 Bd4 Bde6 Bc3 Qd4 Bb4 Bb3 Qc4 Beg6 Qc5 Bg8 Qc4 Be8 Bc5 Bef7 Qd5+
1Rn5/kpnpRn2/1r1q1NBK/1bb3rb/N1B2RRN/3R2R1/2Q3RB/3q4 w - - 0 1 illegal: No proof kernel forced: wxLB
Rq2N2n/b3b1QR/B1b1BB2/Rp2BN2/3r4/2rNB1nB/pq2b2K/k4B2 w - - 0 1 illegal: No proof kernel
R1BR1N1r/qR4p1/1Q2n2N/b1pN1nr1/1Rb3R1/4BB2/1RR1nnp1/2K4k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 b4 a5 e4 f5 d4 c5 Kd2 f4 h5 f3 h6 a4 h7 g3 e6+ Kd6 e7 f2 e8R g2 e5+ Kd7 d6 a3 d5 a2 b6 Nc6 b5 Nge7 b7 Qa5+ Nc3 Nb4 b8R Nec6 b6 Bb7 Nf3 Ne7 Nh2 Bc6 b7 Ba4 Qb3 Nf5 Ba6 Qb5 Ng4 Qf1 Rh4 Qg1 Nh6 Ng3 Rg4 Nf5 Rb1 a1N Rb2 Nd3 Qb6 Nc2 Rbb4 Rg8 h8N Bb3 Ng6 f1N+ Kd1 Rh8 Be3 Nf2+ Kc1 Ra7 Be2 Ra3 Bf3 Ra6 Ra8 Ncd4 b8R Ne6 Rb7+ Nc7 Reb8 Bc4 Rb2 Be7 Rc2 Bd8 e6+ Ke8 e7 Ne6 Nf8 N1g3+ Nd1 Qh2 Nc3 Ra3 Ra4 Qh5 Rb4 Qf7 Ne4 Rd3 Nc3 Rd4 Ra8 Re4 Raa2 Re5 Rab2 Bc7 Nh7 Kd7 e8B+ Kc8 Nf8 Ne2+ Kd2 Kd8 d7 Ke7 d8R Kf6 d6 Qe7 d7 Qf7 Qb5 Ba5 Ra8 Qe7 d8R Qf7 Rf4 Kg5 Nd5 Qc7 Qb6 Qb8 Bc6 Qa7 Bg4 Kh4 Bf3+ Kg3 Rg4+ Kh2 Bd7 Kh1 Bc8 Nfg3 Rf4 Rg5 Rg4 Ng1 Kc1 Nf5 Rf4 Ne4 Rg4 Ne2+ Kd1 Nf2+ Kd2 Nc3 Kc1 Ne2+
2QB2N1/b1N5/1RQb4/2rQ1q1p/K1r2QQR/2Bn1nnQ/1b3N2/1k1b1Q2 w - - 0 1 illegal: No possible last move
3qrQq1/pK5N/1R1Nr1R1/3R2BR/1bb1B1n1/1R1p1R2/3Qq1RN/k2b4 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Nb3 g5 Na5 g7 Nc4 Bd2 Ne5 Bc1 Ng6 hxg6 Qc7 Rh6 Qb6 Rh1 Qd8 Kf2 h5 Kf3 d5 c4 Kd7 b4 Kd6 b6 Ke5 f6 e6 b7 h4 b8R d3 b5 Kd4 c5 e5 c6 h3 f7 d2 b6 h2 c7 Nf6 g8R Bf5 c8R Ba3 f8N Bc2 g7 Bf5 g6 Qd6 b7 Nh5 Rc5 Qc6 Nc3 Nf6 Bg2 Bh3 Ne4 Bf5 Nd6 Qc8 Nh7 Bb4 Ra3 e4+ Kf4 e3 Be4 e2 Rf3 e1Q Qc2 d1Q Ra5 Qee2 Qd2+ Qd3 Rb5 Qc5 Rgd8 Bc8 g8R Be6 g7 Qc8 Rb6 Ng4 Rd7 Bf7 Kf5 Bh5 Ke6 Qe2 Ke7 Qc4 Kd8 Qb3 Kc7 Qa2 Rbf8 Re8 b8Q Re6 Kb7 Qc4 R8f6 Qa2 Rc8 Rhe8 g8R Qb3 Rfg6 Qc4 Qa2 Kc3 Bg5 d4 Qd2+ Kb3 Qa8 Ka3 Rb8 Qa2 Qf4 Kb2 Qd2+ Kb1 Rff8 Ka1 Nf3+ Qdb1 Rf5 d3 Rd5 Qg1 Rf7 Qb2 Rf4 Qh8 R8g7 Qg8 Rff5 Qb1 Rf1 h1B Nh2 Qc1 R1f2 Qc3 R5f3 Qd4 Rg2 Qf6 Rh6 Bf7 Rgg6 Qd8 Rh5 Rf6 Re5 Bc4 Rd5 Rfe6 Rc8 Ba2 Rc3 Bc4 Rb3 Qf6 Rgf2 Qe1 Qc2 Rf8 Rf4 Bf3 Rg2 Bd1 Qd2 Qe2 Rf3 Rd8 Qc8 Rf8 Qe8 Qd8 Qe7 Re8 Qf6+ Bc3 Qf8 Bb4
B1n1B2Q/rB5b/1rB1B3/Rp1N2nr/2q2B1K/3BNR2/2pk1r2/2R3Qn w - - 0 1 illegal: No possible last move, all moves rejected
q1NR4/1N2r1q1/1N2p1N1/1K1p4/3N3B/qR3QpQ/Bb3N1N/knRnn3 w - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Kd6 g5 a5 Bc4 Ra6 Be2 Kc7 Bf1 Rf6 gxf6 Kd6 h3 g5 Bg2 g4 Qe2 g3 Bf1 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Qb6 Bg2 Qc7 Bf1 Qd8 Kd2 Ke5 Kd3 h5 Kc4 e6 b4 d3 g5 a4 g6 d2 b6 d5+ Kb5 Kd4 c4 h4 c5 a3 b7 h3 c6 a2 g7 h2 c7 Ne7 g8Q Ng6 c8N Rh6 Qf3 d1Q Qh7 Ne7 Bc4 Qb3 Nd2 Ng6 Rb1 a1Q Ne4 Qaa2 Nf2 Qd1 Bg5 Nh4 Rb3 Bc5 f8R Qb2 f7 Qdc1 f6 Ng2 Bh4 Qe7 Rd8 Rh5 f8N Qbc2 f7 Qa3 Nd7 Qca2 f8N Qg7 Ndb6 Nc6 b8N Na5 Ng6 Ne1 N8d7 Rf5 Qh8 Rf7 Qhh5 Bf8 Nc5 Re7 Nb7 Qa1 Qhf5 Q1a2 Qh3 Qa1 Bd3 Nc4 Bb1 Nd2 Ba2 Qa8 Qe2 Qc3 Qh5 Nb1 Nf3+ Ke3 Rg1 h1N Nh2 Kd2 Qf3 Qb2 Rf1 Qba3 Rg1 Qg8 Rf1 Bg7 Rg1 Bb2 Rf1 Nd3 Rc1 Ne1 Nd3 Nc3+ Kc6 Nc2 b5 Na1 Na4 Nf2 b6 Nce4 Kb5 Qg7 Nbd6 Nc2 b7 Ne1 b8N Nd1 Nb7 Nec3+ Kb6 Nb1 Kb5 Bf6 Nf2 Bd4 Nab6 Be5 Rc4 Bc3 Rc7 Kc2 Nc6 Bf6 Rd3 Bc3 Nd4+ Kb2 Rc6 Ka1 Rc4 Bb2 Rc1 Q8a7 Rb3 Qa8
5Rn1/3Qr2n/b1RR1bK1/nNr1b1R1/k4b1R/q2RbRB1/1Q2QrN1/7B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 h5 d4 a4 b4 h3 d6 h4 g5 h2 b6 Kc6 d5+ Kb7 b5 a3 d7 h3 d6 c4 f6 a2 Kf5 c3 f7 c2 g6 e4 g7 e3 Bg2+ Nc6 Qe2 Rh4 Nc3 Ra7 Nf3 Qe7 Kg6 Nb8 d8R Rh8 f5 Rh5 d7 Nc6 f6 Qa3 Nh4 Bd6 f8R Rc5 f7 Bf4 Bb2 Be5 Rad1 c1B Rd6 a1B Bd5 Bd2 Ng2 Bf6 Rc1 h1N Rc2 h2 Bc1 Nh6 g8R Ng3 Rh8 Ng8 Rh4 h1R Bb2 Kb8 b7 Kc7 b8R Nh5 Ra8 Rh2 b6+ Kb7 Nb5 Ka6 b7 Ka5 b8Q Ba6 Be5 Bd4 Qb6+ Ka4 Bg3 Na5 Rac8 Be5 Rcc6 Nhf6 Rc1 Nh7 Rg1 Bf4 Bf3 Bde5 Be4 Rc1 Qd4+ Rc4 Qb2 Rc5 Ne1 Nb7 Rd3 Ngf6 Qf3 e2 Rh8 Bdc3 Rf1 Bcd2 f8R Ng5 R8h5 Ngh7 Rg5 Na5 Qf2 Bc1 Bh1 Ng8 Qg2 Bf6 Rff3 Be3 Qf1 Rf2 Ng2 e1B Qfe2 Bc1 Ra8 Bec3 d8Q Bcd4 Qde8 Bde5 Rad8 Rc7 R8d6 Re7 Qd7 Be3
6QK/7B/4NrN1/RQ3NQn/3qqR2/N2rB1bN/nqq5/kbNqN2n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 g7 c3 f7 h4 d6 e6 f5 h3 b6 c2 b7 Kb3 f6 Rh4 Qd3+ Ka4 b4 Rh8 b5 Rh4 b6 Nh6 g8Q Na6 b8N Qe8 d8Q Qe7 b7 Bd7 Ne2 Rd4 Na3 Nf5 Be3 c1Q Nc6 Qc2 b8N Ng7 Nb4 Nh5 Qb5+ Kb3 Nd3+ Nb4 Ne1 Kb2 Nc1 Rd3 Nc6 Ra6 Nd4 Rb6 Rg1 h1Q Nf5 h2 Rg4 Qb7 Rf4 h1N Qg5 Bc6 d7 Be4 Qa8 Qe8 d8N Be7 f8N Bc5 Bg1 Bf2 f7 Bg3 Ng6 Qec6 f8N Qd1 Ne2 Qcc2 Be3 Qd7 Nf7 Qb7 Rc1 a1Q Bh3 Qa7 Qc8 Qa2 Ra1 Qab3 Qcc4 Na2 Nc1 Rbd6 Ngh8 Nf6 Bc5 Bh4 Ne7 Rb6 Bf5 Qg2 Qg4 Rd7 Nb1 Nb4 Ra5 Bg3 Ng5 Na2 Na3 Bb1 Nef3 Rd3 Nh3 Nh5 Bh7 Ka1 Qg5 Qgc2 Nf5 Qbb2+ Bd4 Qd7 Nhg6 Qd8 Qc7 Ra6 Qg7 Qd7 Qg8 Qa7 Ke4 e5 Kd5 e4 Ke5 Rc3 Bg1 e3 Bf2 e2 Bg1 Rf6 Ne6 Rf7 Bd4 Qdd3 Bg1 e1Q+ Be3 Qed1 Ne1 Rf8 Nd8 Qad4+ Ke6 Re8+ Kf7 Q3e4 Ne6 Rd3 Qc4 Nf6 Kg7 Rf8 Kh8 Rf7 Qb5 Nh5+ Qg7 Rf6 Qf7 Qdc5 Qg8 Qcd4
R1b3K1/QNNr2n1/3qN1B1/Q1q3rN/1b2r2N/N1R1n2R/1Nb1k1nB/2b5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 a5 f4 a4 b4 c6 b6 h3 b5 a3 g5 e6 f6 h4 b7 h2 f5 h3 g6 a2 b6 Qe8 f7 Rh7 g7 Ra6 f6 Qe7 Bd3 Rh5 Qa4 Rg5 Ne2 Rg3 Nec3 Re3 Na3 Qe8 Bg6 Nh6 g8N Nd7 b8N Nc5 b7 Qd8 Nd1 Ra5 Na6 Ng4 b8R e5+ Kc4 e4 d4 Qc7 Nb2 Ne6 Rb3 c5 Rc3 Ng7 Bd2 Be7 f8N Re1 f7 e3 Nf6 e2 Ne6 Ne3+ Kd3 c4+ Ke4 Rb5 f8N Qc5 Nh5 Rb7 Bc1 Rd7 Nac7 Rg1 Qa7 e1N Kf4 Rg5 Ke4 N3g2 Be3 Nc2 Bg1 Nce3 Bh7 Qb5 Ng6 Qc5 Nh4 Bf8 Bg6 Be7 Rf1 a1Q Rf8 Qd1 Rh8 Bb7 Rb8 Bc8 Ra8 Nf1 Rd3 c3 Rg3 c2 Rc3 Ne1 Kf4 c1B+ Ke4 Ne3 Kf4 Rg2 Ke4 Bf8 Kf4 Re2 Kg5 N1g2 Kh6 Qd2 Kh7 Qd1 Kg8 Qd2 Bf2 Qd1 Re1 h1R Bg1 h2 Rf1 Qd3 Rf3 Qd2 Rh3 Be7 Bf2 Rg1 Be1 h1B Bg3+ Nf4 Bh2 Be4 Rc4 Bf8 Rc3 Bc2 Ng3 Ke7 d6+ Kf6 d5 Ke5 Nh5 Qd1 Rd3 Rg5 Rc3 Rf7 d7 Re7 d8Q Rd7 Be8 Ke4 d6 Nfg2 Bf7 Re7 d7 Qdd6 Nd5 Rd2 Qda5 Rd4 d8N Rd7 Nb7 Rc4 Na4 Rb4 Ndc7 Rd4 Rc4 Kd3 Rc3+ Ke2 Nb2 Re4 Bg6 Qcd5 Na6 Qg3 Nbc4 Bb4 Nb2 Qgd6 Nc7 Q5c5
1K1r4/N2Br1qk/bN3B2/bnB1QR1n/Q1bnB2B/2rn3R/1Q5B/B4b2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kg7 Ke4 c5 Ke5 h5 d4 a5 g4 a4 f4 a3 b4 h3 g5 a2 d6 h4 d7 h2 d5 e6 d6 c4 f6+ Kh7 f5 h3 f7 c3 f6 c2 b6 Ra4 b7 Qc7 d8B Be7 f8Q Ra5+ b5 Ra3 f7 Qa5 d7 Qb4 b6 Qc4 Qe8 Nh6 f8B Rg3 g6+ Kg8 g7 Na6 b8Q Rc3 b7 Nc7 Na3 Qg4 Bb5 Bb4 Ne2 Nf5 Bh4 Kh7 d8B Ng3 Bb2 c1N Bc5 Nd3+ Kd6 e5 Bdf6 e4 Qe5 e3 Qa4 Rd8+ Bd7 Nh5 Nb5 Ba5 Raf1 a1N Na7 Nb3 Rf5 Nd4 Nf4 e2 Ba1 e1R Nd5 Qg5 Nb6 Re2 Rb1 h1B Rb3 h2 Ra3 Bg2 g8B+ Kh6 Be6 h1B Bd5 Bf1 Be4 Kh7 Rb3 Qg7 Ra3 Nf3 Rb3 Nb5+ Kc6 Rc1 Qb2 Re3 Q8e5 Rc3 b8B Bhg2 Bc7 Be2 Bb8 Bgf1 Bd6 Ndf4 Bc7 Bc4 B7d6 Nd3 Ra3 Nbd4+ Kc7 Nb5+ Kb8 Nfd4 Qe8 Re2 Bh2 Rg2 Qe5 Rg6 Bfe7 Re6 Bef6 Re7 Qb1 Rc2 Nc6 Ne1 Rh3 Nd3 Na7 Rc3 Qb2 Ba6+
1q2rn2/2qqkrn1/1n1b4/1r4R1/N2B3B/pBQ3R1/BN1QB1b1/1B2K1RB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 b4 h5 g4 d5 e4 a5 c4 f5 g6 h4 g5 a4 b6 a3 e6 d3 e7 h3 c5 d4 e5 f4 b5 h2 g7 f3 c6 Qd7 c7 Rh7 g6 Ra5 b7 Ra7 b6 Qd8 Ne2 Bd7 c8Q Bh3 Nd2 Rh8 Nc4 Ra5 Qd2 Ra8 Bb2 Rh7 Rg1 h1R Nc3 Rh6 Rg3 Rh7 Na4 Nh6 g8B Bg2 g7 Nd7 b8R Rh5 b7 Nf5 Be2 Rg5 Be6 Rgh5 g8B Rf7 Bc3 Ng7 Ncb2 Rg5 Ba2 f2+ Kd1 f1N Ke1 Ne3 Rc1 Rf3 Bgb3 Nd5 Rd1 Kf7 e8B+ Ke7 e6 N5b6 Bg6 Rb5 Rc1 Rf7 Qc5+ Kf6 e7 Qc7 e8B Bd6 Qc4 Nf8 Bc6 Ke7 Ra1 Nfd7 Rg8 Re8 b8B Nf8 Ba7 Bh3 Bh1 Bg2 Qf4 Qb8 Bd2 Qc7 Qc3 Qb8 Be3 Qc7 Bf2 d2+ Kd1 Qb8 Bgb1 Qc7 Rg5 Qb8 Bh4 Qc7 Bf3 Qb8 Ke2 d1Q+ Kf2 d3 Be2 Qc2 Ke1 Nbd7 Bd4 d2+ Kf2 d1Q Rg3+ Nf6 Qfd2 Qh7 Rg5 Qdc2 Ke1 Nd5 Bg4 Nb6 Be2 Nh5 R8g6 Qf5 Rg8 Qd7 R8g6 Ng7 Rg3+ Rf6 R6g5 Rf7 Rh3 Qdc7 Rd3 Rf3 Kd1 Kd7 B1c2 Nh5 Rb1 Rf2 Rdg3 Kd8 Rc1 Qhd7 Bcb1 Rf7 Ke1 Bf3 Kf2 Ng7 Rcg1 Ke7 Ke1 Bg2
3kq2R/2RN2p1/1Q4RR/n1r1bQ2/r1Q2r1R/3R1bq1/3KnB1q/1N1Rb2B w - - 0 1 illegal: No possible last move
7n/B1N1B3/B2R4/1R2qbQ1/BrBbQb1K/2n1b3/1pb2N1Q/k1B2nrB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 Kf2 h5 Kg3 c5 a4 e5 d4 b5 g6+ Kf6 a5 c4 d6 c3 a6 c2 d7 b3 g7 b4 d5 b2 a7 e4 d6 e3 Ba6 e2 Ra5 b3 Rb5 Qe7 d8Q Nc6 d7 Nh6 g8B Rh7 Nc3 b1N Kh4 b2 g4 Nd2 Qc7 Nb4 d8Q Na2 Bc4 Rb8 a8B Nf7 Qe1 Rg7 Nh3 Nf1 Nf2 Nh8 Nd5+ Kf7+ f6 Ke6 g5 Nc3 f7 Qf6 Ng4 Bc5 f8B Be3 Be7 Qe5 g6 Kf5 Qcd6 Ke4 f5 Kd4 f6 Bf5 Bb3 Kd3 f7 Bd4 f8B Be3 Bd2 c1B Ba4 Bd4 Bdg5 Bf4 Nf2+ Kc4 Qb1 e1B Qe4 Bed2 Nc7 Bde3 Bh6 Rg8 g7 Rb6 Rg1 Rb8 Rg6 Rb7 Rc5+ Kb4 Bhg5 Ka3 Rb5+ Ka2 Bh6 Ka1 Re6 Qc5 Qde5 Rb8 Rd6 Rb6 Qb8 Qd5 Qf6 Qe5 Qg5 Rb7 Qh1 Bc2 Qe8 Rb6 Qh2 Rb8 Bh1 Rb6 Kh3 h4 Qa8 Rb8 Qe4 Rb6 Kg4 h3 Kh4 Rb7 Rg6 Rb6 Bc5 Rb8 Rd6 Rb6 Be7 Rbb8 Qhg3 h2 Ba7 Rb7 Bg2 h1B Qh2 Rf8 g8B Rf7 Rf6 Rg7 Bc4 Rg6 Bf3 Bg2 Rc6 Bh3 Rd6 Bf5 Bh1 Rg8 Ra5 Rb3 Rb5 Rb4 Qg4 Bg5+ Kh5 Bc1 Qgh4 Bgd2 Be3 Rg3 Qg5 Rg1 Kh4 Bb6 Bd4 Bf4 Be3 Bd2 Nh3 Bd4 Nf2 Be1 Bc1 Bed2 Qhg2 B2e3 Qh3 Bc5 Qh2 Bcd4
2bn2BB/1RbRn1BB/3b3R/kn1NN1B1/1p1r4/1Q1B3q/1Q4bK/r1b1B3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 f4 b5 Kf2 e5 Kg3 c5 a4 Kc7 a5 h5 g6 e4 g7 b3 d6+ Kb7 d5 Ka6 d7 e3 d6 c4 f6 c3 f5 e2 f7 e1B+ Kh2 c2 g4 h4 f6 h3 g5 b2 g6 Bc3 Bg5 c1B Bd3 Be7 f8B B1d2 f7 Bb7 Qb3 Bc1 Nf3 Nf6 g8B Rh4 g7 Rh6 Ne5 Nd5 Bgh7 Nc7 g8B Nc6 Bg7 Ne6 f8B Rh4 Bh8 Bc8 Bfg7 Rd4 Ra3 Qf8 d8R Qf5 d7 Bd6 Ra4 Ne7 Rb4 Be1 Nc3 b1N Nd5 Nc3 Bh4 Bed2 Bg3 Bc7 Be1 Ba3 Qb2 Bc1 Rb3 Bad6 Rb4 Ka7 a6 Qh5 Nf4 Kb6 a7 Ka5 Nd5 Rb8 Rb3 Rb6 a8Q+ Ra6 Qb7 Qf3 Rf8 Nd8 Rf6 Qf5 Rh6 Qh5 Rf1 Ra7 Rf7 Qg4 Kh1 h2 Qb8 Qf5 Kg2 h1B+ Kh2 Bg2 Qb7 Ne6 d8B Qh3+ Kg1 Nf5 Bg5 Nd8 Rd7 Ra8 Qc6 Ne7 Qc4 Ra7 Rb4 Ra6 Qcb3 Ra8 Rc4 b4 Rc6 Ra6 Rb6 Nb5 Rb8 Rc6 Rb7 Rc3 Q3a2+ Ra3 Qab3 Qg4 Kh2 Ra1 Bf2 Qf5 Be1 Qh3+
4r3/2pbb3/b1QB1k2/2R1nr2/N1rQR3/bBqB2NB/3Qb3/B1BB1K1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 f5 d4 h5 b4 a5 d6+ Ke6 b6 h4 d5+ Ke5 b5 f3 g6 a4 b7 h3 d7 a3 d6 a2 b6 f4 g7 h2 g5 Ra4 g6 Rd4 Ne2 Qg5 d8B Rd2 d7 Qh4+ Ng3 Qe7 Bh3 f2+ Kf1 Qb4 Nc3 Qa4 Bf6+ Kd6 d8B Qa5 e5+ Kc5 e6 Kd6 e7 Rd4 e8B Nc6 b8Q Nh6 g8B Be7 b7 Bd7 g7 Ng4 Bb3 Nce5 Bh5 Re8 Na4 Qc3 Bc2 Ke6 Qd2 Re4 Qa8 Rc4 b8Q Ba3 Rg1 h1B Qb2 Bf3 Bd3 Be7 Rb1 a1B Qb4 Bb2 g8B+ Nf7 Be5 Ba3 Bd6 Kf6 Qc6 Nfe5 Qbc5 Be4 Rb5 Bg2+ Ke2 f1R Qd4 Nf2 Rc5 Nh1 Bge6 Rf2+ Ke1 Be4 Bd1 f3 Rf1 Rh2 Rg1 f2+ Kf1 Bf3 Rg2 Rb4 Beb3 Rc4 Rg1 Rg2 Ne2 Rgg8 Rg4 Rg5 Ng3 Rf5 Qb6 Ba8 Re4 Bb7 Qc6 Ba6 Ke2 f1B+ Ke1 Bg2 Ke2 Kg6 Ke1 Bf3 Kf1 Bf8 Bg5 Be7 Bb2 Kf7 Ba1 Ke6 Qb2 Kf7 Bc1 Kf6 Qd2 Be2+
qQ5b/B1R5/R5bB/1RK1r1Q1/2Nr3n/1bnpn1Bk/1N4b1/1B1rBBB1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 h5 Kc4 a5 g4 d5+ Kc5 h4 f4 a4 c4 d3 b4 d4 f6 Ke6 b6 h3 b5 d2 f5+ Ke5 f7 Kf4 g6 Kg3 b7 h2 g7 a3 f6 d3 b6 a2 g5 Rh3 g6 Qe8 Qg4+ Kf2 Nf3 d1B Bd2 Be6 Na3 Nc6 b8B Na5 b7 Rh5+ Qg5 Qa4 Ne5 Ra6 Ba7 Rd6 b8B Rd4 Rb1 a1R Rb5 Bf5 Be3+ Ke1 Bg1 Bb3 Bc7 e6+ Bd6 Be7 f8B Rd1 f7 Nf6 g8Q Nd5 Bh6 Nc3 f8B Bf6 g7 Be4 Qh8 Bg6 g8B Bg7 Bf7 Bf6 Bfe7 Bg7 Qb8 Bh8 Ng4 e5 Nf2 e4 Bg3 e3 Bd8 Nc6 Ba5 e2 Bb4 Ne5 Bd5 Rc1 Be6 Ng4 Nd1+ Nf2 Nb2 Rd1 Kc6 Qa5 c5 Qa4 Nac4 Qa2 Qf6 Re5 Qg5 Qa3 Kb6 Qa4 c6 Qa1 Bf4 Ng4 c7 Ne3 Bd5 Qa6+ Kc5 Qb7 c8R Qa8 Bh3 Re8 Rc7 Re5 Bd7 Kf1 Bg3 e1N Bh3+ N1g2 Ba5 Na2 Bae1 Nc3 Na4 Ke2 Nab2 Nh4 Bg2 Ree4 Bf1+ Kf3 Bf7 Re5+ Bd5+ Be4 Nd6 Ra4 Bg1f2 Bc2 Be2+ Kg2 Bd2 Rb1 Re1 h1B Bg1 Re7 Ba2 Kh3 Bf1+ Bhg2 Rc1 Bb3 Bde1 Rd4 Ndc4 Bg6 Rd1 Ncd5 Rc1 Re5 Rc3 Rd1 Bb1 Ba4 Ra3 Bb3 Ra6 Nc3+
b4k2/5N2/RNNrq3/6Q1/N2RQN1b/2NKbR1n/NqB2npr/3bB1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 f5 d4 c5 Kd2 g5 e4 c4 h6 f3 e5 g4 d6 a4 d7+ Kf7 h7 f4 b6 c3+ Kd3 g3 b5 a3 h5 f2 d5 a2 e6+ Kg7 d6 c2 b7 g2 h6+ Kf6 e7 Kf7 e8Q+ Kf6 b6 f3 Bd2 c1Q Nc3 Qc7 d8R Ra4 d7 Rc4 Qe4 Kf7 Rh3 Be7 Nge2 Nf6 Be1 Qb2 Qd2 Ng4 Nc1 Rc6 Qg5 Na6 b8N Qe5 b7 Nc7 Na6 Nd5 b8N Qe6 Nc5 Rd6 N5a4 Bb7 Be2 f1R Bd1 f2 Bc2 Bf6 Re3 Rg1 Rf3 Re8 h8N+ Kf8 h7 Ba8 Nf7 f1B+ Qe2 Bd4 h8N Be3 Ng6+ Kg7 Nf4+ Kf8 Rb1 a1B N1a2 Nf2+ Kc4 Qa3 Rb6 Qb2 Qd3 Be2 Ra6 Bd1 Qe4 Nh3 Kd3 Nf6+ Nfd5 Ng4 Nc6 Qe7 Nce5 Qe6 Nc4 Bc6 Ncb6 Ba8 Rc8 Rd8 Rc4 Rb8 d8N Rb7 Nh6+ Rf7 Rd4 Ngf2+ Kc4 Rf6 Nhf7 Rh6 Nc6 Qc1 Ne2 Bc3 Nf4 Qb2 Rd3 Bf6 Rd4 Qc8 Ndc3 Rh5 Qg3 Bh4 Qg5 Qe6+ Qgd5 Bf6 Qh7 Ng5 Qf5 Rh2 Qe4 Qc8 Qdf5 Ngh3 Qfd5 Bh4 Qg5 Nh1 Kd3 Qe8 Ra5 Qe6 Ra6 N1f2+
Q3q1Q1/1r2q1Q1/1Nr2QNB/3n1R1Q/5rpQ/2r1R2B/bq1b2K1/Q1nk2B1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 h4 Kd6 f4 a5 Kf2 c5 d4 e5 f6 g5 f5 c4 b6 c3 b7 c2 h5 e4 b5 a4 b6 a3 h6 a2 f7 g3+ Kg2 g4 h7 e3 f6 e2 Na3 e1Q Nc4+ Kd7 d6 Kc6 d7 Kb5 d5 Kb4 d6 Kc3 Rh5 Qde8 d8B Q8e7 d7 Q1e6 Nf3 Na6 b8Q Bb7 Rf5 Nb4 Bh6 Ra4 Qa8 Bd5 b7 c1R b8Q Nd3 Nb6 Rf4 Qd6 Bg7 f8Q Bb3 f7 Nf6 Bc7 Nd5 d8Q Qe4 Rb1 a1Q Qg8 Ba2 f8Q Bf6 Rb4 Bg5 Qfg7+ Q4e5 Re4 Qb2+ Re2 Rc2 Qde6 Nc1 Nh4 Kb3 Qe1 Rc3 Ng6 Qe8 Qef6 Q5e7 Bb8 Rc6 Ba7 Rc3 Kg1 g2 Re3 Kc2 Qh4 Kd2 Qh5 Kd1 Kh2 g1R+ Bg2 Qb1 Bh3 Rg2+ Kh1 Rb2 Kg1 Rbb3 Kg2 Rc6 Qa1 Rbc3 Qf6 Qb5 Qgg7 Rf8 h8Q Rf7 Qhg8 Qb2+ Kh1 Bh4 Kg1 Be1 Kh1 Bd2 Kg2 Qea3 Qfh4 Rb7 Qdf6 Rf3 Bb8 Qab4 Bh2 Qbe7 Bg1 Rf4
1Nqrb2N/1Rr2q1k/3NN3/1Kn1qRrp/3BrN2/NB2b2n/1R3NQ1/4Q3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kc4 c5 g4 h5 f4 a5 b4 e5 d4 h3 g5 e4 f6+ Kh7 f5 a4 f7 h2 f6 e3 b6 e2 b7 e1R d6 a3 d5 a2 d7 Re6 d6 Na6 b8R Qe8 d8N Bb7 d7 Bf3 b5 Re5 b6 Kg6 b7 Be7 f8N+ Kf5 g6 Re4+ Kb5 c4 f7 c3 g7 c2 Be3 c1R Nde6 Bd6 Nf4 Bc7 N8g6 Rc2 f8N Bb6 Bc4 Nf6 g8Q Nc5 N8e6 Nh7 Qe1 Qf7 d8N Ng5 Bd4 Nh3 Bb3 Ra4 Na3 Ra5+ Kc6 Ba7 Rb1 a1Q Rb2 Be2 Qg7 Re8 Nh8 Bb5+ Kd5 Rg8 Qg2 Be8 Kd6 Rg5 Kd5 Rd2 Kc4 Ra6 Kb4 Rc6 Kb5 Bb6 Nf3 Qc1 Rf1 h1Q Ne5 Qh2 Ned3 Qc2 Nf2 Qc3 N4d3 Qe5 Ndf4 Rd3 Rc8 Rd1 b8N Rd2 Nb7 Rc7+ Nc6 Rd1 Nd6+ Kf6 Rb8 Rd2 Nd8 Kg7 Nde6+ Kh7 Rb7 Qa5+ Kc4 Qa8 Kb4 Qc8 Nb8 Rc6 Kb5 Rd3 Be3 Rd5 Bd4 Ba7 Ndc4 Rd8 Nd6 Rc7+ Kb4 Re2 Nd5 Qg8 Nh1 Bb6 Bg1 Qg6 Rf5 Qf7 Ndf4 Nd7 Bf2 Bc5+ Kb5 Re4 Bg1 Bb4+ Bc5 Bd2 Nf2 Be3 Nd4 Qeg7 Nde6 Qgf6 Bd4 Qe5+ Ka4 Nc5+ Kb4 Rcd7 Kb5 Rc7+
Qr3RK1/1nN3Q1/r4B1R/q5b1/1pRRbq1n/4k2N/q2p2RR/Rr3B1B w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 a4 e5 h4 e4 c4 e3 f4 b3 a5 b4 h6 g4 a6 e2 h5 e1Q a7 g3 h7 g2 c6 d6 c5 b2 c7 Qe3 h6 Qg3 c6 Qg7 Qa4 Qgd7 Nc3 b1R Rh4 Q8e7 Nh3 g1Q Nb5 Na6 Bb2+ Kf7 f6 Kg6 f7 Kf5 Bf6 Rb8 a8B Bg7 f8Q Bb7 c8R Qg3 Nc7 Qee1 Qe7 Bf8 Qg7 Be7 Re8 Bd8 Re2 Nc5 Rg2 Qe2 Rg4 Qa3 Qa7 Qa5 Rh4 Bc8 Bb7 Qe3 Qa8 Ne7+ Kc4 Re8 Bc3 Ke4 h8R Qa3 h7 Ng6 f5+ Nf4 f6 Nd3 f7 Rc1 f8R Qg3 Na6 Qf5 c7+ Ke3 Rb2 Ng2 Nf4 Re6 Rd2 Qf7 Kd5 Bg5 Bf6 Rb1 Rg4 Bd7 c8R Nc5 Rc6 Qa4 Nc7 Qa5 Rf2 Bc8 Rh4 Qg4 Rh2 Bd7 Nh3 Qg3 Rd8 Qf4 Rhf8 Nh4 h8R Be8 Rd2 Qg8 Rh6 Bg6 Bba6 Bh7 Bae2 Bc2 Bf3 Nb7+ Rc5 Bf5 Bh1 Bh7 Rdg2 Bc2 Kc6 d5+ Kd7 Ra6 Ke7 d4 Ke8 Qb3 Rc4 d3 Kf7 d2 Kg8 Qba2 Rd4 Be4
RBN1Q3/QB2n1B1/5BBr/p1q1rp1R/1q3b1K/1b6/2b3QN/k1rnB2B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 Kd4 g6 f5 e5 h5 g5 c5 d6 f3 Kg3 a6 d7 c4 e6 f2 g7 c3 e7 c2 e8B Rh7 g6 Be7 b6 Rh6 b5 Bb7 Qe2 Bf3 b7 Rh7 b6 Rh8 Nc3 Rh6 Na4 Bf8 Bg2 f1Q Bb2+ Kd5 d4 Qc8 d8B c1R Kh4 Bb4 Bf6 Be4 Nf3 Qc4 Nh2 Nd7 b8B Ne7 b7 Bd2 Qf2 Qb3 Bg3 Kc4 b8B Qg1 d5 Ne5 g8B Ng4 g7 Qb4 Qa7 Kb3 Nb6 Bf4 Be1 Qgc5 Nc8 Bc2 Bg6 Ne3 B2e5 Nd1 d6+ Qcc4 d7 a5 d8Q Qd5 Rb1+ Ka2 Qe8 Qdc4 Rb2+ Ka1 B8d5 Qcc5 g8Q Bb3 Bb7 Bc2 Kh3 h4 Bg7 Bb3 Bef6 Bc2 Qb6 Ra6 Qa7 Re6 Rb3+ Re5 Rg3 Rb1 Rg5 Rc1 Rh5 Bb3 Rg1 Bc2 Bh1 Bb3 Kg2 h3+ Kf3 Be3 Kg3 Bf4+ Kh4 Bc2 Rg3 Bb3 Qd5 Bc2 Qg2 Bb3 Nf1 h2 Rd3 Bc2 Rd8 Qa4 Bc7 Bb1 Nb6 Bc2 Ra8 Qad4 Bb8 Qdb4 Nc8 Bb3 Qg5 Bc2 Bhe4 h1B Nh2 Bg2 Bed5 Bf1 Bh1 Bc4 Qg2 B4b3
1qQ2r2/K1n2p1Q/1Qrn1N2/1p1Nb2B/R1b3r1/Q2QQ3/B3n1R1/B2Q1n1k w - - 0 1 illegal: No possible last move
1rbn2Rb/1B3RB1/QN2k1p1/Qq3rR1/3Rbp2/1Nq4n/1R2b3/QR1K1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 h4 Ke7 c4 d5 b4 f5 e4 a5 b6 g6 b7 a4 c5 a3 e6 d3 h6 f4 h7 d4 b5 a2 h5 Qd5 b6 Qc4 c6 Nd7 b8Q Ra3 h6 Qc5 c7 Qg5 e5 Qh5 b7 Qf3 Nc3 Qc6 Nge2 Qg2 Qa7 Ra6 b8R Qd5 Rab1 a1Q Na4 Qc6 Bb2 Ngf6 Nc1 Bb7 c8Q Ba8 Nb6 Qf3 Bg2 Rg8 h8R Ne4 h7 Bg7 Rf1 Qa4 Nb3 Ra5 Qca6 Nf2 Rd8 Rf8 Rg8 Qb5 h8R Be4 Rh5 Nh3 Rg5 Bh8 Qc1 Qe3+ Kd1 d2 Rb8 Qc3 Rb7 Ke8 e7 Kf7 e6+ Kf6 e8R Nb8 e7 Nc6 Rd8 Ke6 Rdd5 Nd8 Rg7 Rf5 Rf7 Ra4 Qa5 Rc4 Q7a6 Rc8 Rc5 Rb8 e8R+ Kd6 Ref8 Ke6 Rc4 Qc2+ Ke2 d1B+ Ke1 d3 Rd4 Qc8 Rg8 Bg4 Bf3 d2+ Kd1 Qcc5 Bc3 Qc7 Rb2 Qcc5 Qca1 Qe5 Rb4 Qec5 Bg7 Qc3 Rbd7 Bb7 Rdd4 Bc8 Be2 Bf3 Rb1 Be4 Bf3 Bd3 Bc6 Be4 Bb7 Qe3 Rbc4 Qd3 Rc2 Qc3 Rcb2 Qcc5 Nc4+ Qcc6 Ke2 d1B+ Kd2 Be2 Nb6 B2d3 Ke1 Qc3+ Kd1 Be2+
3n2R1/B1N1Kr1b/3B1pRq/2RQ2Qn/1kn1B3/1r1p1Rb1/1pR4R/1Rq2N2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Ke3 g5 Ke4 b5 Kd5 b3 h4 b4 a4 d6 c4 b2 e4 b3 e6 g4 h6 g3 a5 g2 h5 Rh7 a6 Qe8 a7 Qb5 e5 Qe8 c6 Bg7 c5 Qf8 c7 Bd7 c8R Qe8 c6 Bh8 c7 Na6 Rh2 Ba4 Nf3 g1Q Na3 b1N Bg2 b2 Nd2 Qb6 Be4 Rg7 h7 Rb8 a8Q Rb7 h6 Rg1 Nb5 Qf2 Nf1 Nb8 Qg4 Bd1 Qg5+ Bf6 h8B Qe3 h7 Nd2 Rb1 Nc6 Rh6 Nd8 Rg6 Qh3 Bg7 Qh5 h8R Nc4 Be3 Bc2 Ba7 Qh6 Rh7 Qf8 Bh8 Qh1 Rh2 Qh6 Bg7 Rb8 Qb7 Rg3 Bf8+ Ke8 e7 Kd7 e8R Rb3 Be7 Bg7 Rf8 Nf6+ Kd4 d5 Kc5 d4 Bd6 Qg1 Qd5 Nh5 Rg8 Qe3 Rf8 Qc1 Rg8 Bf8 e6+ Ke8 e7 Kd7 e8R f6 Re5 Be7 Rf5 Ra8 Bg2 Be4 Rf3 d3 Rb8 Bf8 c8R Bf5 Nc7 Be7 R6g7 Bh7 Rg6 Bf8 Rb5 Rb8 Kd4 Ra8 Rc5 Rab8 Bf4+ Bd6 Ke4 Ra8 Kf5 Ke7 Be3 Bg3 Bf4 Ne5 Rc2 Nc4 Bd6+ Kd7 Qe6+ Kc6 Qf7 Nb7 Ke6 Nd8+ Ke7 Rab8 Nd5+ Kb5 Rc5+ Ka4 Nc7 Kb4 Bh1 Nb7 Qfd5 Rf8 Rf4 Nd8 Be4 Qd1 Rff2 Qc1 Rf3 Rf7+
1Q1RnK2/8/1nkp1nN1/3q3N/RnBrqB2/b1RN3R/N4B2/R1qN4 w - - 0 1 legal: proof: b4 a5 g4 b5 e4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Qc7 axb5 Kf7 b6 Ke8 b7 Nc6 b8B Ra7 b5 Ra6 bxa6 Bb7 axb7 Na7 Na3 Qc8 Nb1 Qd8 Kd2 e5 Kd3 g5 Ke4 d6 Kd5 Kd7 c4 d3 f4 g4 h4 d2 f6 a4 h6 a3 f7 a2 h5 g3 c5 e4 f5 g2 f6 e3 h7 e2 h6 e1N Ne2 g1N Rh4 Qc7 c6+ Kd8 Ke6 Bg7 f8N Nd3 f7 Qa5 Nbc3 Qg5 Nf4 Ne2 N8g6 Bd4 f8N Bg1 Kf7 Qb5 Qb3 d1Q Nh5 Be3 Ra4 Qa5 Ne5 Qe1 Nd1 Qc5 Nfg6 Ng1 Kf8 Nb5 Ba7 Kc7 b8N Nb4 Bc4 Nf3 Nd3 Qd5 Bc5 Bd2 Bf2 Ne5 Qb1 Bc3 Bf4 Qee4 Qb3 Bd4 Na6+ Kb6 c7 Kc6 c8R+ Nc7 Qb1 Bb2 Rd8 Ba3 Qb3 Nc2 Qb8 Nf6+ Ke7 Rf8 h8R Nb4 h7 Rg8 Rc8 Rg7+ Kf8 Re7 Rd8 Nce8 Rg8 Rb7 h8R Rb5 Rg7 Rc5 Ra7 Ra5 Rc1 a1Q Rc3 Qb2 Nc7 Qc1 Nb5 Bb2 Ra1 Ra2 Ra4 Ba3 Ng7 Rd2 Rh3 Nc7 Nh5 Ned7+ Kg7 Nb6 Kf8 Qb2 Rb3 Qc1 Nbc3 Nce8 Na2 Ng7 Rc3 Nge8 N3b2 Rd4 Nd3 Qe2 B2g3 Qee3 Bf2 Qee4
3b3B/R7/3BR1r1/R4N2/K2q1NR1/NbNNq1Rp/1p1Qn3/rr2bB1k w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra4 f4 Qd6 fxg5 Kd8 h4 Ra8 h5 Nf6 g6 Ke8 g5 Qd8 g7 Ng8 Kf2 Nd7 Ke2 Ne5 Ke1 Ng6 hxg6 Qd7 Na3 Qd6 Nb1 Qd8 a4 Kd7 d4 Kd6 Kd2 b5 Kc2 c5 Kb3 h5 f6 e5 a5 e4 a6 h4 a7 e3 f7 e2 Qd2 e1Q Ne2 h3 Ra5 Be7 f8B Bg4 Bb2 Rc8 a8R Rh6 R8a7 Nf6 g8R Ra8 g7 Ne4 g6 Nc3 Na3 Be6 Rg1 Qf2 Rg4 Qe3 Rh8 Qd7 g8R Qd8 g7 Rg6 Rh6 c4+ Kc2 Qd7 Ba1 b3+ Kb2 Na2 Nc3 b4 Rg3 Nc1 Rg4 Ne2 Rg3 Qb7 Rg4 Kc7 d6+ Kc6 d7 Qb6 d8N+ Kd6 d5 Ke5 Rg3 Kf4 d6 Qd4 Nf7 Bd8 d7 Bd5 Rg4+ Kf3 Bd6 Kf2 Ne5 Bf7 Re4 Kg1 Nd3 Kh1 Rg4 Be6 Rgh8 Bd5 g8N Bf7 Ne7 Bd5 Kb1 b2 Kc2 b1R Nf5 Be6 Rg8 Bd5 Ncb5 c3 Rg7 Bc4 Rg3 Bc7 d8N Bb6 Ne6 Bc7 Nef4 Bd8 Nc1 b3+ Kd1 Rg5 Re6 Rg6 Bb2 Rh6 R7g4 c2+ Ke1 Rf6 Nc3 Rg6 Ba1 Rb2 Ncd3 c1B Kd1 Rb1 Ne4 Qh8 Bd4 b2 Kc2 Qe5 Nc3 Qc5 Bh8 Qcd4 Qe1 Bd2 Qd1 Be1 Qd2 Ba6 Kb3 Bc4+ Ka4 Rc8 Qd1 Ra1 Nb5 Bd5+ Bb4 Rcc1 Nc3 Bc4 Bd6 Rcb1 Qd2 Bb3+
1rB3kN/KBb4N/R5nR/1r2N3/3R2b1/1rBqnNN1/n2n1nb1/1Q3B1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 g4 h5 d4 a5 b4 f5 e4 Kf7 d6 f3 Ke3 c4 g6+ Kg7 g5 a4 e5 h4 e6 c3 d5 h3 Kd4 f2 Kc5 f4 b6 a3 e7 h2 e8B c2 b5 f3 b7 a2 b6 Nc6 b8N Nge7 d7 Ra6 b7 Rh6 d6 Na5 Nc6 Kh8 b8N Rh5 g7+ Kh7 g8B+ Kg7 Nd2 Bb7 Ne4 Nf5 g6 Rh4 Ne5 Nc6 Ng3 Rb4 Be6 Ra3 Bb2 c1N Bc3 Kh8 g7+ Kh7 Qd3 Rab3 Qb1 Bc8 g8B+ Kg7 Bd5 Nce7 Bb7 Ne3 Bgd5 Ng6 Bef7 Be7 Bfe6 Rb5+ Kc6 Bg5 Be4 Bf4 B6f5 Qf6 d8N Kg8 Ndf7 Qd8 Nh8 Be6 B5h3 Bf5 d7 Bg4 Nd3 Bc7 Ne5 Qe7 d8R+ Qe8+ Rd7 Qd8 Rd1 Qd2 Nbd7 Qd3 Ba6 Rb8 Nf8 R3b5 Nh7 Rb3 Bfg2 f1N Bc8 f2 Ngf3 Nd2 Bb7 f1B Kc5 Bh5 Bhc8 Bg4 Kc6 Bh3 Kc5 Be2 Bf1 Bg2 Rg1 h1N Kc6 Nf2 Rh1 Qd8 Rh6 Rb5 Ne1 Bg4 N1f3 Ndb3 Rd4 Nd2 Rc4 Rb3 Kc5 Qd3 Rb4 Bd6+ Kb6 Bc7+ Ka7 Rb2 Nd7 Bh1 Rd4 Rb5 Ng1 Bhf3 Bf5 Bc6 Be4 Bd5 Bh1 Bg2 Qb2 Ndb3 Nf3 Nd2 Rb1 a1R+ Qa2+ Rd5 Rb6 Rb1 Ra6 Rb3 Qb1 Rdb5 Nde5 Na2
BNbNq3/1B3Bb1/Q1R1nk2/1R1qN3/1r2nr1r/1q2qR2/1B2Nq2/1BN3K1 w - - 0 1 illegal: No possible last move
q1B1B3/r1q3B1/3nNbNK/4brR1/bRn1r3/2b2R2/1R1Nk1q1/1R3NQN w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 e5+ f6 a5 f4 h5 b4 c5 b6 a4 d6 h3 d7 e4 f5 c4 b5 e3 b7 e2 b6 Kd3 Bb2 a3 Nf3 h4 Rg1 c3 Nh2 Qe8 d8N c2 f7 c1B f6 a2 Nc6 Ra4 Nb4+ Kc4 Nd3 e1R Nf2+ Re2 Nh1 Na6 b8R Kd3 b7 Be7 f8N Ra3 Ng6 Qc6 Rg2 Bb4 f7 Ne7 f8R Nd5 Rf3+ Ne3 Bg7 Rf8 Kh6 Rf5 g5 Bd7 Rg8 Be7 b8R Nc7 Rb4 Bb2 Rgf2 Qb7 Bg2 Bbf6 Nf1 h2 Bh3 Ba4 Bg4 h3 Qc1 Ra5 Bc8 Nb5 Qd1 Nd6 Qe1 Kc2 d4 Kd3 d5 Bc3 Nbd2 Qc7 Rab1 a1B Rg2 Bef6 Qc1 Ne8 d6 Rf5 d7 Nd6 d8N Bce5 Qe1 Bac3 Ne6 Ra2 Qf2 Ra3 Qg1 Re1 Rgg4 Ke2 R4b2 Ra2 Rgb4 Nec4 Nh8 Bb3 g6 Ra7 Bf8 Ba4 g7 Bh4 Ng6 Bhf6 Rh8 Qb6 g8B Qc7 Nf2 h1Q Bf7 h2 Bg7 Qg2 Be8 Qg3 Rg8 h1Q+ Nh4 Qhg2 Nh1 Qg4 Ng6 Qe4 Rg3 Qa8 Rg5 Kd3 Rf8 Re4 Rf7 Ke2 Rf8 Rf2 Rf7 Be7 Rf3 B7f6 Rd3 Rff4 Rf3 Rf5
k2n3N/b1rN2B1/2bb1N1R/2r1n3/2N2BRq/R2NRQ2/2B2rb1/R1Kn1q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 g4 c5 d6 h3 b6 Kc6 g5 Kb7 d7 h2 b5 c4 d5 a4 f6 a3 d6 a2 f5 e4 g6 h4 g7 h3 f7 Qh4 d8R Qf2+ Ne2 Rh7 f6 Ra5 d7 Nc6 Re8 Nge7 d8R Qg1 g8N Ra7 Rd3 Ne5 Ra3 Bd7 Nf4 Bc6 Bd3 Qf1 Qf3 e3+ Kc2 c3 Nd2 e2 Nc4 e1Q Be3 Bh6 f8B Rf7 Bg7 Qh4 Bc1 Rf8 f7 Ra5 Rg1 h1B Nf6 h2 Rg4 Bg2 Bg6 h1N Nd3 Ra7 Bf4 Nf2 Bh7 Nd1 Kc1 c2 Bg6 Rg8 f8N Ra5 Bh7 Bg5 Ng6 Rf8 Nh8 Rf7 Rb1 a1B Bf5 Bc3 Rba1 Bb4 Bh7 Bd6 Bg6 Nd5 Re6 Kb8 b7 Ne7 Bf5 Ka7 b8N Ka8 b6 Ra7 Nbd7 Ra5 Bd2 Be3 Be4 Bec5 Bf4 Ra7 Na5 Rc7 b7+ Ka7 b8R Bd4 Rb4 Ka8 Bf5 Ba7 Re4 Rf8 Re3 Rf7 Kd2 c1R Bh7 Rc5 Nc4 N7g6 Kc1 Nf8 Nh5 Rf5 Rh6 Ne6 Bg6 Rf8 Nhf6 Nd8 Nb4 Rb7 Bc2 Rf7 Nd3 Rb2 Ba4 Rf2 Bc2 Re7 Nf8 Rb7 N8d7 Rc7
1NnRRK1k/r4b1b/7N/2BB1NRn/3q1R2/2QNqb2/NRqb1q1r/3B4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 Ke5 a5 b4 c5 g4 c4 f4 e6 d4 a4 b6 h3 d6 h2 b5 h4 d7 c3 b7 a3 f6+ Kh7 b6 c2 f5 a2 g5 h3 f7 Bg7+ Kd6 e5 f8R e4 f6 e3 g6+ Kh6 d5 Ra6 f7 Bc3 g7 Kh7 Qe1 e2 Be3 c1Q Bc5 Qc2 Re8 Qb2 f8R Bd4 Rf4 Qa3 Nc3 Ne7 g8B+ Kg7 Nf3 Bf2 Nd4 Bh4 Rg1+ Bg5 Rb1 h1B Rb2 a1Q Na2 h2 Qc3 e1Q Be2 Bf3 Bd1 h1B Rgg2 Qf2 Nf5+ Kg6 Ke6 Qc7 d6 Ra7 Bf7+ Kh7 Rgg4 Na6 b8N Nb4 b7 Nbd5 Na6 Nf6 b8N Nh5 N6b4 Bcb7 d8R Nc8 d7 Bbe4 Rg1 Bhg2 Nd3 Bh3 Rh4 Bd2 Rg5 Qch2 Rf4 Bf1 Ne5 Ba6 Nd3 Bc4+ Ke5 Qb3 Bd5 Qhg1 Ke6 Qc2 Kf7 Qe3 Reg8 Qgf2 Kf8 Bb3 Re8 Bc4 d8N Bb3 Nac1 Qa4 Nf7 Qad4 N7h6 Ba2 Bc6 Bf7 Bd5 Nb6 Rd8 Ra2 Nh4 Ra8 Ke7 Ng3 Na2 Ra5 Ng4 Nc8+ Kd7 Beg6 Rgf8 Kg7 Rfe8 Rh5 Nh6 Ra7+ Rb7 Kh7 N4f5 Rh3 Bd6 Nh5 Bc5 Ra6 Rb2 Rh2 Ng8 Kh8 Ngh6+ Bg8 Ree4 Bh7 Ke8 Ra8 Kf8 Ra7 Ree8 Bf7
NqR5/N1Bpr1r1/kB1b2B1/2B5/2R5/2n1nNn1/2NrRBbQ/N2q2Kb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 e5 b4 g5 c4 a5 f4 e4 Kf2 g4 f6 d3 h6 a4 h7 a3 f5 d2 c5 a2 b6 Qc7 b7 Kd8 h5 Bg7 b5 Nc6 b8B Ra6 b6 Ra8 h6 Ra4 b7 Ne5 c6 Ng6 f7 Qa5 f8N Nf4 c7+ Ke8 f6 Qf5 f7+ Ke7 Rh2 Kd6 Qc2 d1B Bd3 Rd4 Na3 Qe5 Be3 Ne2 Ne6 Nf6 Rc1 a1Q Nc5 Kc6 f8B Kb6 Nf3 Rg8 h8R Nd5 h7 Nec3 Kg1 g3 Nb3 g2 Bf2 e3 Bg6 e2 Bc5+ Ka6 Qa2 Qb1 Na1 Rd2 Bb6 Bf8 N3c2+ Ba3 B8a7 Rg7 b8N+ Kb5 Rg8 Ne3 h8B Bb7 c8N Bd6 Nc6 Qh5 Qb2+ Ka6 Bc7 Qb5 Bc5 Ba8 N6a7 Qb8 Nb6 Bb7 Na3 Bb3 Qa2 B3d5 Rc8 Qb3 N3c2+ Qa4 Rf1 e1R Qb2 Qd4 Na8 Qd3 B5b6 Qe2 Rh4 Qd1 Rc4 Ree2 Re1 Bbc6 Qb4 Bb7 Qc5 Bdc6 Qe5 Be4 Kh2 g1N Kh1 Bbc6 Qh2 Rh7 Bhd4 Nf5 Bdc5 Rg7 Kg2 Bed5 Kh1 Re4 Nfd4 Nge2 Qh6 Ne3 Qh2 Ng3+ Kg1 Bb7 Ba5 Ree7 Bab6 Ngf1 Re2 Bh1 Qg2 Bf3 Qh2 Bfg2 Nf3 Ng3+
k1b1n3/bR6/NQ1B1B1q/NKrB4/3r1n2/N4BRN/1R2npn1/2qBnN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 Ke2 c5 Kd3 Kc7 Kc4 Kb7 b4 h5 d4 f5 g4 a5 d6 a4 d5 f3 g6 f4 g5 f2 b6 a3 d7 f3 b5 a2 e5 h4 e6 h3 e7 h2 e8B Qf6 d8B Rh6 g7 Qe6 g6 Na6 Ba3 Qe7 d6 Rh5 d7 Nb8 Be2 f1N Qd6 f2 Nh3 Rd5 Bf3 Qg5 Bf6 Qe3 Rg1 h1Q Rg3 Ne7 g8N Qg1 g7 Qe1 Beh5 Ng6 Ne7 Qe3 g8B Nf4 Nf5 Ra5 d8N+ Ka8 Nb7 Nd7 Qe6 Qd2 Ne3 Bd6 Bd1 Bb8 Bhf3 Ba7 Bb4 Qh1 Na3 Rd6 Rb1 a1N Bf7 Nc2 Rb2 Rd3 Qc6 Ne1 B7d5 Qh2 Bbc3 Qh1 Bce5 Qg1 Bd6 Rd4+ Kb3 Qc1 Qc7 c4+ Kb4 Qh2 Qd8 Nd2 Nf1 Neg2 Qc7 Nb8 Qd8 c3+ Kc5 Na6+ Kc6 Raa4 Na5 c2 Qc7 Rab4 Qd8 Nc7 b7+ Kb8 Bde7 Ne8 Qb6 Rb3 Bf8 Rc3+ Bc5 Nc4 Bb4 Ne1 Bd6+ Nc7 Kc5 Ne3+ N5c4 Qh1 Ng1 Qh6 Nh3 Rdd3 Kb4 Qb1 Qc6 c1N Na5 Bb6 Qc5 Ka7 b8N Ne8 Na6 Nce2 Qd4 Rc6 Ka4 Bc5 b6+ Ka8 Kb5 N3g2 Qe3 Qc1 b7+ Ka7 b8R Bb6 Rb7+ Ka8 Rg5 Ba7 Qb6 Rd4 Rg3 Rc5+
3RR3/2n2bqK/2N1p1rB/2qN3b/N1B1B2k/N2QN3/R1n2r1B/1bB1br2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 b4 c5 d4+ Kf6 f4 a5 g4 h5 g5+ Kf7 b6 h3 g6+ Kf6 b7 c4 b5 a4 d6 h2 b6 a3 g7 h4 d7 c3 d5 a2 d6 h3 Ne2 c2 Bg2 Rh6 Ng3 Rh4 Qd3 Qc7 d8N Na6 b8B Nh6 g8B Be6 b7 Qa5 d7 Ra7 Nf1 Qc5 Na3 Bf7 Ne3 Rh5 Re1 h1B Nc6 h2 d8R Bg6 Nb4 Ng4 Bc4 Rh6 Re2 Nc7 Nbd5+ Kg7 Re1 Bh5 f6+ Kg6 f5+ Kg5 f7 Rg6 f6 Kh4 Kf5 Bg7 f8N Ra4 f7 Bc3 Bb2 c1R Nd7 Ba5 Re2 Be1 f8B Raa6 Bh6 Raf6+ Ke4 Rb1 N7b6 Rf2 Na4 Rc1 Bf3 Bg2 Kf4 h1B Kf5 Rd1 Bc1 Bf1 Rb1 a1Q Ra2 Qg7 Rb6 Bfg2 Rbd6 Bh3 Re8 Bf1 Rdd8 Bhg2 Qd4 Bd3+ Qe4 Bb1 Qd3 Na6 Bh2 Nc7 b8N Bh3 Nc6 Bg2 Nf1 Ne3+ Ke4 Nc2 Nfe3 Bh3 Bg2 Be6 Bf3 Bf7 Kf5 Rfd2 Be4 e6+ Kf4 Rg1 Rg8 Bf2 Rh8 Rdf1 Rhe8 Qg8 Ke5 Re2 Kf6 Qg2 Ng4 Be1+ Kg7 Ref2 Kh7 Qg3 Nge3 Qe5 Qd2 Rg6 Qd3 Qg7+
3B2n1/qrQ1N3/1bp3nB/N4NNN/nBr2rBB/1RR1r1n1/4R3/1bK4k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 h5 Kd2 a5 f4 e5 g5 a4 g6 a3 f6 e4 g7 h3 b6 h2 b7 a2 f7 c6 f5 h4 f6 h3 b5 Bd7 b6 Qc7 Be2 Na6 b8N Qa7 b7 Nh6 g8N Bg7 f8N Nc7 f7 Ne6 Ng6 Ng4 N8e7 Nf6 f8B Rh7 Nh4 Be8 Ngf3 Ng8 Re1 h1R Na3 h2 Ng5 Bg6 Bg4 Nf4 Re2 Rf1 Nd7 h1N b8R Ng3 Rb3 Bf5 Rc3 Ng6 Nf6 Rf4 Rb1 a1N Nh5 Nb3+ Kc2 Nc5 Rbb3 Na4 Nc4+ Kd7 d6 e3+ Qd3 Bh8 d5 Bd4 Bd2 Bb6 Kc1 Rb8 Qd4 Rb7 Na5 Rf7 Qf6 Rc4 Bh6 Rf8 Qg7 Rf6 Ne6 Bb1 Be1 Rff4 Nhf5 Bc5 Ng5 Bb6 Rec2 e2 Qf7 Kd8 d7 Kc7 d8B+ Kd7 Nh4+ Kd6 Nhf5+ Ke5 d6 Ne4 Bh4 Ng3 d7 e1R+ Kd2 Ree4 Kc1 Re3 Re2 Bd4 Bb6 Bc5 d8B Bd4 Nh7 Ke4 Bbc7 Bc5 Bd6 Bb6 Bb4 Rf2 Bh3 Kf3 Bg4+ Kg2 Ng5 Kh1 Qg7 Rff3 Qe5 Rf2 Qc7 Rff4
n1n1rN2/qRB3Q1/B1NBB1rb/1b2N1r1/3R4/pRp2q2/2N1n2k/B3NK2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 Kd6 g4 e5 b4 c5 f6 h5 f5 a5 g5 h3 b6 h2 g6 h4 b5 c4 f7 h3 g7 e4 f6 c3 b7 a4 b6 e3 Qg4 e2 Bb2 Rh7 Ra3 Rh6 Rb3 Rh5 Na3 Ra7 Ba1 Qc7 Nf3 Qe7 Nc2 Na6 b8R a3 b7 Nh6 g8B Re5 Qg7 Nf5 Kf2 Nc7 Nfe1 Ra4 Rg1 h1Q Rg4 h2 Rh4 Kd7 d6 Ke6 d7 Na8 d8B Bd7 Bc7 Nd6 d5+ Kf5 Rd4 Nc8 d6 Bb5 d7 Ra6 d8N Qc6 Bd6 h1N+ Kg1 Qf3 Nc6 Ng3 Bc7 Rd5 Ne5 Qe4 Kf2 Kf4 Kg1 Qc5 Kf2 Qa7 Kg1 Bc5 f8N Re6 f7 Rg6 Nc6+ Kg4 Nd7 Rdg5 f8N Bd6 Kf2 Bf4 Nde5+ Kh4 Be6 Qf5 N1d3 e1R Kg2 Re3 Nde1 Re4 Bfc4 Ne2+ Kf1 Kh3 Bd6 Kh2 Bd3 Ba4 Ba6 Bb5 Bc7 Ncb6 Re8 Qg4 b8B Nc8 Re7 Bd2 Bd6 Qg3 Bbc7 Qe3 N1d3 Qf3+ Nf2 Rf5 Bf7 Rff4 Nd3 Rge6 Ba5 Nab6 Rb7 Rg6 Nde1 Na8 Bac7 Re5 Bd5 Rfg4 Bf7 Bh6 Bc4 Qg3 Nfd3 Re8 Nde5 R4g5 Be6 Qf3+
2K2rBR/4N1RR/7B/1N6/qpN2rb1/r5pk/BB3RRq/nbb2BnQ w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg3 c5 Kf4 f5 h4 b5 e4 c4 a4 c3 d4 b3 e6 Kf6 h6 b2 e5+ Kg6 h7 c2 e7 b4 e8R Ne7 h5+ Kh6 e6 g5+ Ke5 f4 a5 f3 d6 f2 d7 Qb6 d8R Ra6 d5 Nbc6+ Kd6 Rg8 h8B Ng6+ e7 Nh4 Rd7 Qe3 Kc7 g4 d6 Kg5 h6 g3 h7 Na7 Nf3+ Kg4 Nc3 b1Q Nb5 Rb6 a6 Qe2 Bh6 Qb3 Ra2 Nc6 a7 c1R a8B Qa4 Bb2 Rc4 h8R Ra6 Nd2 Rf4 Nc4 Na5 Bd5 Rg5 Bg8 Nf3 Rg1 Kh4 Rh7 Rgf5 Rg2 Nb3 Red8 Bg7 e8B Na1 Bef7 Kh3 Re7 Qd2 d7 Ng1 Bd5 Bd4 Reg7 Be3 Re8 Qe2 d8N Bc1 Nc6 Ra8 Ne7 Qec2 Be2 f1B Bd3 Be2 Rf2 Bg4 Bf1+ Kh4 Rg2 Kh3 Qe1 Bb7 Rb8 Bc6 Kc8 Qd2 Bde6 Be4 Qd1 Bc2 Qf3 Bb1 Rf2+ Kh4 Qh1+ Nh3 Re2 Qd8+ Kb7 Ra5 Bgf7 Be3 Be5 Bd2 Nca3 Qd1 Rh2 Qd4 Rbh8 Qg1 Rg2 Bc1 Kc8 Qh2 Bg8 Ng1 Raf2 Kh3 Ba2 Qc2+ Nc4 Ra3 Bd4 Qa4 Bb2 Rf8+
B1r3RB/1nB5/1r2r2K/1pb3qR/Rn1bp2N/5BNk/r5NN/NQ3b1B w - - 0 1 illegal: No possible last move
RbrRRN2/1r2pB2/1q2B3/R2Bqb2/4qkn1/5pNK/1Q1N4/q1R1B1Bn w - - 0 1 illegal: No proof kernel
NNRN4/BB4Rp/QRq2br1/p1RBB3/k1bKpnrb/2Rb4/4Bn2/8 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Ke2 e5 Ke3 a5 c4 d5 g4 Kd7 b4 Nh6 f4 Qc7 g6 Na6 g5 Qc6 g7 Qg6 g8R Bd6 f5 Qf6 g6 Qe6 g7 Qe8 c6+ Kc7 c5 Nb8 b6+ Kd8 b5 Bc7 b7 Ra6 b6 Nf7 f6 Bh3 Ra3 Bg4 Nf3 Nd6 f7 Nc8 f8B Ne7 Bb2 Bf5 Qd3 Ng6 Nd4 Be6 Nd2 Nf4 Rc3 Bf7 Nc4 Nd7 b8N Nf6 b7 Qe6 Rh5 Ng4+ Kd2 Bd6 Nb6 Kc7 Be2 Nf2 Ke3 Be7 Ba1 Bf6 Na8+ Kd8 c7+ Ke8 c8B Qc6 Ne6 d4+ Kd2 e3+ Kc2 e4 Nd8 Rb6 Qa6 Bb3+ Kb2 d3 Rg5 d2 Rf5 Qc7 c6 d1B Rc5 Qd7 c7 Bdc2 Rb5 Bd3 Rc5 Qf7 Bd6+ Qf8 Be5 Bbc4+ Rb3 Ke7 Kc3 Qe8 Kd4 Re6 Rc3 Qc6 Rf8 Rg8 Rf7+ Ke8 Rd7 Be7 Bb2 Rg6 Ba1 Bf6 Rf7 Rf8 g8B Rg4 Rd7 Rf7 Bb2 Rfg7 Bd5 R7g5 Rg7 Rg6 Bf3 e2 Ba1 e1B Be2 Nd1 Bb2 Beh4 Bc1 Rg1 Be3 R6g4 Nd7 R1g3 b8R Nf2 Rb6 Rg6 Bb7 R3g4 Rg8+ Ke7 c8R Bfg5 Bh8 Kd6 Rg7 Bf6+ Ne5 Ba2 Rb1 Nd1 Rf7 Nh3 Rcb5 Be7 Nd7 Rg2 Nb8 Ndf2 Bf6 Nf4 Rg7 Bac4 R1b4 N2h3 Bg1 R2g5 Ke3 Rg4 Bd4 Bef6 Ba7 Nf2 Rb6 Kc5 Bh2 Nh5 Be5 Rg2 Ra3 Nf4 Rb2 Bb5 Rc2+ Kb4 Rc5 R2g4 Rac3 Ka4 Kd4 Bbc4
4Q3/Qpq2QBQ/4Nb2/b1B2bRK/5NB1/1bQN2p1/Rp3Qqk/3r4 w - - 0 1 legal: proof: e4 d5 h4 a5 g4 g5 a4 f5 gxf5 g4 b4 axb4 f4 d4 c4 g3 a5 d3 f6 Nd7 e5 Rb8 e6 Ne5 f5 Nf7 a6 Ngh6 a7 Ng5 hxg5 Nf7 exf7+ Kd7 a8Q Bh6 Qa7 Ra8 Qb8 Ra5 Bxd3 Rb5 Bf1 Rd5 cxd5 Bf8 Ke2 Kd6 Kf3 Ke5 Kg4 e6 d4+ Ke4 g6 c5 d6 h6 d7 c4 g7 c3 g8Q c2 d5 e5 d6 b3 Ne2 b2 Qe1 Be7 f8B Qb6 d8N Qc7 d7 Qd6 f7 Qf6 Nf4+ Kd4 Qc3+ Ke4 Qa7 Qc6 f6 Qd5 Be3 c1Q Kh5 Kf3 Bh3 e4+ Bf5 Qc2 Bc5+ e3 Nd3 Kg2 Bg7 e2 f8Q e1B f7 Bf6 Qh7 Qe5 Ra5 Qc7 Ra2 Bd2 Rc1 Kh2 Ne6 Be1 d8Q Qg2 Qfe7 Bd7 Qc8 Rd8 f8Q Ba4 Bh3 Bb3 Qef7 Rd6 Qf8e8 Rd7 Qd4 Ba5 Nc3 Rd8 Bg4 Rd6 Kg6 h5 Nd5 h4 Qf2 h3 N5f4 Rd5 Ne1 Rd1 Ned3 Kh1 Kh5 h2 Qf3 Qd7 Rc4 Qc7 Rd4 Kg1 Qe2 h1B Rd5+ Kh2 Rg5 Qf2 Qd2 Be4 Qc2 Qg2 Qf2 Qe7 Qc7 Bf5 Qe5 Qd6 Qc3 Qc7
1NKN3B/3r4/N1q2p1k/1rRn2RN/b2n3N/N7/1R2QBrn/2bB1r1Q w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 c5 Kf3 g5 Ke4 c4 Ke5 f3 e4 c3 d4 f2 h4 g4 a6 g3 h6 g2 h5 c2 a7 Na6 d6 Bh3 b6 Rb8 a8N Nb4 d5 Qd7 h7 Qc6 d7+ Ke7 d8R Be6 b7 Qd7 h6 Qe8 Nf3 g1N Na3 Bc8 Qe2 Bf5 Ra2 Bc8 Rh5 Qd7 Rb2 Qh3 Nc7 Qg4 Na6 Qh4 Rg5 Na2 Be3 Qh1 Nh4 Bd7 Rc8 c1R Rc5 Nc3 d6+ Ke8 Bg2 f1R Bf3 Rcd1 Bf2 Ba4 d7+ Ke7 d8N f6+ Kf5 Rd7 e5 Nb5 e6 Bg7 Bh5 Kf8 Bg4 Nf3 e7+ Ke8 Ke6 Nh2 Qc2 Bf8 Bd1 Qf3 Qe2 Qc6+ Kf5 Rc8 b8N Rcc7 Ne6 Kf7 e8N Rb7 N8g7 Bd6 Nh5 Bf4 Nd8+ Kf8 Nb4 Bc1 N4a6 Nd4+ Kg6 Ndf3 Kf5 Rb5 Nf4 Qc7 Ke6 Ne7 Nh5 Rg8 h8Q Nd5 Qh7 Qb7 Qb1 Rgg7 h7 Qa8 h8B Qc6+ Kf5 Kg8 Qbe4 Kh7 Qb1 Qb7 Ke6+ Kh6 Qbe4 Rc7 Kd6 Nd4 Qh1 Qa8 Re5 Rg2 Rg5 Rc6+ Kd7 Rd6+ Kc8 Rd7 Be1 Ra5 Bg3 Rb5 Bf2 Qc6+
k1N2b2/1r1BRQ1b/p1Rq4/K1Q1N1bq/5R1n/QrbQ4/3B1Q2/b5NQ w - - 0 1 legal: proof: g4 d5 e4 b5 c4 h5 cxd5 hxg4 b4 f5 exf5 a6 a4 Kd7 axb5 Rh3 b6 Ke8 b7 Rh7 b5 Nc6 b6 Na7 bxa7 Rh8 b8R Kd7 f4 c5 d4 Kc7 Kd2 e5 Kc3 g5 h4 e4 d6+ Kc6 d5+ Kd7 f6 c4 Kb4 g3 h5 g2 f5 e3 h6 c3 h7 c2 f7 g4 f6 e2 Rh6 e1B+ Qd2 g3 Rb7+ Qc7 Ra4 Bf2 Na3 Kd8 Nc4 Bf5 Ne5 Kc8 Bb5 Bg4 Bd7+ Kd8 Qd4 Be3 Qc5 Bd4 Bd2 Rb8 a8N c1B Nb6 Bf5 Ka5 Ba1 Rf4 Ne7 Ra7 Rg8 h8Q Ng6 Qg7 Qc6 Nc8 Nh4 Qg6 Rg7 Qh5 Ng6 Qh1 Rb3 Rc7 Nh4 Qa3 Qc2 Rc6 Qd1 Rh7 Qh5 Qc5 Rg8 Rg7 Bh7 Qa3 Be7 Qc5 Re8 f8Q Ba3 f7 Bg5 Qg8 B3b2 f8Q Bc3+ Ka4 Rb7 Re7 Rb3 Qgf7 Rb7 Ne2 g1Q Qa3 Qh2 Ng1 g2 Qc5 Bcb2 Ka5 Rb3 Qh6 Rg8 Qhf6 Rg7 Qf5 Qg3 Qd3 Qh2 Qde3 Bd4 Qf2 Bdc3+ Qb4 Rg6 Be8 Rb1 d7 Bcb2 Rff6 Qg3 Rc4 Qd3 Rcf4 Kc7 Qbc5+ Kb7 d8Q+ Ka8 d6 Rh6 Qdb6 Bc3+ Qbb4 Rb3 d7 Qd4 d8Q Rg6 R6f5 Rb6 Rf6 Rb7 Rc6 Qd3 Qdd5 Qdg6 Bd7 Qd6 Ng6 Bg7 Qd3 Bf8 Ne5 Bc3 Ne2 Ba1 Qa3 g1B Qf1 Be3 Ng1 Bed4 Qf2 Bdc3+
5nK1/Q1b2Q1Q/n3Q1p1/qqb3p1/B2q3B/1N1R1B1N/2krQR2/2b3QR w - - 0 1 legal: proof: c4 d5 cxd5 Kd7 e4 b5 d4 h6 g4 a6 a4 Qe8 axb5 Bb7 d6 Qd8 g5 Ke6 d7 hxg5 d5+ Ke5 d6 Bc8 Ra2 Kf6 Ra1 Ke6 f3 a5 Bd2 Kf6 Bc3+ e5 Bd4 Ra6 Be3 Rc6 Bf4 Rc5 Bc1 Rd5 exd5 Rh4 Ke2 Rh5 Ke1 Rh8 b6 e4 Be2 e3 Bf1 Ba6 Nd2 Bd3 Nb1 Be4 fxe4 Qe7 Bd3 Qe8 Bf1 Qd8 Ke2 Ke5 Kd3 c5 Kc4 f6 b4 e2 h4 e1B b7 a4 h5 a3 b5 a2 h6 Qe7 d8Q Qf7 h7 Ne7 d7 Bd2 b6 Ng8 Qe7+ Kf4 d8Q Ke3 e5 Nh6 e6 Nc6 b8Q Qe8 b7 Ng4 d6 Nb4 d7 Ke4 Qg3 Bf4 b8Q Na6 Qdc7 Qd8 Be2 g6 Qba7 f5 Be3 Qb8 d8R Bd6 Bf2 f4 Qh2 Rg8 h8Q f3 Q8h7 Qb6 Bh4 f2 Nh3 f1Q Qg1 Qa5 Qe1 Nf6 Nd2+ Ke5 Qc8 Bc7 Nb3 Ke4 Qe8 Nd7 e7 Rg7 Qd2 Qf5 Rf1 a1Q Rf2 Rf7 Bd1 Rf6 Qb2 Rd6 Bf3+ Ke3 Qbg7 Rd2 Qgg8 Nf6 Qb5 Nd7 e8B Be7 Qgg7 Nf8 Rd4 Qd3+ Kd5 c4 Bd7 c3 Bc6 Nd7 Ke6 c2 Kf7 c1B Kg8 Nf8 Qf7 Bc5 Be8 Q1a4 Qce6+ Qe4 Qbf1 Q4b4 Ba4 Qbb5 Rc4 Qe5 Qe1+ Kd3 Rd4+ Kc2 Qe2 Qe3 Rd3 Qd4
bRRnn3/k2p1n2/r5N1/3BB3/R1Bn1N2/NB5r/1Bpb1bQ1/2KB2Q1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 d4 c5 Ra2 c4 Ra1 Qb6 c3 Qc5 dxc5 Nc6 Ke2 Nb4 Kd2 Nc2 Ra3 Bg7 Ra1 Bxc3+ Ke2 Bg7 Kd2 Bf8 f4 Kd8 g4 Kc7 b4 Kb8 f6 h5 f5 e5 g6 a5 b6 e4 g7 a4 c6 a3 g5 h4 b7 h3 g6 h2 b5 a2 f7 Ne7 g8B Ra4 c7+ Ka7 b8B+ Kb7 b6 Ra3 g7 Ka6 f6 Bb7 c8B Rh7 Be5 Rhh3 Bcb2 e3+ Kc1 Nc6 Be2 Bc5 f8N Nd8 f7 Nd4 Ng6 Ra4 Bg4 e2 f8Q e1N Qf2 c3 Ne2 c2 Nef4 Nef3 Na3 Ng5 Bb3 Ngf7 g8B Ra5 Rf1 h1N Qg2 Nf2 Rh1 Bb4 Qdg1 Ne4 Bd1 Nf6 Rh2 Ne8 Rh1 Nfd6 Bgd5 N6f7 Rh2 Be1 Rh1 Bf2 Rh2 Rg3 Rh8 Rh3 Rg8 Ra4 Bdc4+ Ka5 Bd5 Ba8 b7 Kb6 b8R+ Ka7 Ba6 Ra5 Bac4 Ra6 Rb1 a1B Rb4 Nc7 Ra4 Ne8 Rf8 Ng5 Rf6 Ngf7 Rc6 Ng5 Rc8 Ngf7 Bf6 Nf5 Bbe5 Bc3 Bh8 Ba5 Bb2 Bb4 Bhe5 Nd4 Ba1 Nh8 Ba2 Bc3 Rbb8 Bb4 Bab3 Nhf7 Bb2 Bd2+
2Nq4/BKR5/7q/qBb1n2k/2Nb4/2pp1N1B/Q1QQ1QR1/1b1Qn1Qn w - - 0 1 legal: proof: e4 h5 a4 f5 exf5 a5 c4 c5 b4 b5 cxb5 g6 d4 c4 b6 Ra6 b7 Rc6 b5 Rc5 dxc5 Rh6 h3 g5 h4 gxh4 Be3 Rd6 Bc1 Rd2 b6 Rb2 Rh2 Rb3 Rh1 Rb5 axb5 a4 Ke2 Kf7 Kf3 e5 Ke4 h3 Kd5 d6 g4 a3 f4 c3 c6 a2 c7 h2 g5 e4 f6 Kg6 f5+ Kh7 g6+ Kh8 g7+ Kh7 f7 h4 f6 Kg6 Nd2 e3 Nc4 e2 Be3 e1Q Bh3 Nc6 b8Q Qf2 b7 Qf4 b6 Bf5 c8N Qg3 Qa8 Bd7 b8Q Ne5 b7 Nh6 g8B Nhg4 Nf3 Kh5 Rg1 h1Q Ba7 Bf5 Rg2 Nd3 Kc6 d5 Qd6 d4 b8Q Nge5+ Kb7 Bg7 f8Q Ne1 f7 Bb1 Qd7 Qg6 Qc5 Qh6 f8Q d3 Q7a4 Qh2 Qac2 Qg3 Qcd2 Qgg5 Qg1 Qa5 Bd5 Qgd8 Bc6 Bh8 Bb5 Bf6 Bf5 h3 Qc7 h2 Bh3 h1N Qcb8 Nf7 Qbh2 Bd4 Q2c2 Ne5 Qff4 Qdf8 Qfd2 Qg8 Qdf2 Qgd8 Qcd2 Bc2 Rb1 a1B Rb2 Bb1 Rg7 Qh4 Rc7 Qd8 Ra2 Bb2 Q2c2 Nd7 Qfd2 Ba3 Qhf2 Be7 Qff1 Qg6 Qcc1 Nf6 Qdg2 Nd5 Bc5 Qa3 Rc2 Qb4 Qa2 Qa5 Ba7 Nf6 Rd2 Qh7 Qcc2 Ng4 Rf2 Qhh8 Qfe2 Qh6 Qed2 Bf8 Q2f1 Ba3 Rg2 Ne5 Qff2 Bac5
1Rb5/1rB2qN1/1Q3N1N/1qbBNBK1/3N3n/2R1pq1b/2p4Q/q3kN1Q w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 gxf5 d5 e4 dxe4 f4 g4 h4 Nd7 f6 Nb6 f5 Nd5 cxd5 Nh6 Na3 Rg8 Nb1 Rg5 hxg5 Ng8 Bd3 Rb8 Bf1 Ba6 Bc4 Qc8 Ra2 Bh6 Qc2 Kf7 Ke2 Bg7 Rh2 Nh6 Qb3 Qd7 Rh3 Rh8 Rh1 Qd8 Qd1 Ke8 Ra1 Bf8 Ke1 Ng8 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 b6 h5 d6 c5 f7 g3 f6 h4 g6 e5+ Kg5 h3 b7 a4 b8Q+ Bb7 g7 a3 d5 g2 d7 c4 d6 e3 Ne2 h2 Nd2 a2 Rb1 a1Q Nd4 c3 Bd3 c2 Nf1 e2 Bf4 e1Q Bf5 Qe8 d8N e4 d7 Bd6 f8N Qa5 f7 Qb5 Nh7 Qa6 f8N Qf7 Nf6 Qd5 Ng6 Qe3 Ne5 Qc3 Ndf7 Ne7 g8B Qf3 d8N Qab5 N8e6 Bc5 Nh6 Bc8 Qb6 Rh7 Ng7 g1Q+ Bg3 Qdb3 Bd5 Ng6 Qc1 Qa2 b3 Kc3 b4 Nh4 Qd1 Qbc4 b5 Qgf2 Rg1 h1B Bf4 Qa1 Rg3 Bg2 Rb2 Q3e3 Qf3 Bh3 Qh1 Qb3 Rf3 Qd3 Re3 Qf3 Rb1 Kb4 Rb2 Qc4 Rc3 e3 Qc6 Ka3 Bg8 Qfd1 Ng6 Bd7 b6 Qe1 b7 Bc8 b8Q Qee2 Ngh5 Qf3 Bh2 Ra7 Ng7 Qb4 Qbd6 Qb7 Bd5 Qf7 Rb1 Ka2 Qe5 Qc4 Rb8 Rb7 Bf4 Kb2 Qb6+ Kc1 Bh2 Kd1 Qg3 Qa8 Qgg2 Qd3 Bc7 Ke1 Ne5 Qa1 Qgh2 Qb5
1Rr3NN/1N3n2/1Bn3nN/1Q3KbB/2Rp1N1k/8/1nQ2pB1/1NbbQb2 w - - 0 1 legal: proof: d4 b5 f4 c5 h4 f5 a4 g5 axb5 a5 g4 e5 Ra4 Ra6 Ra2 Rf6 Ra1 cxd4 fxe5 f4 Na3 Rf7 Nb1 Rf5 gxf5 g4 Qd2 Bb7 Qd1 Qg5 hxg5 Bc8 Kd2 Ke7 Kd3 d5 e4 h5 b4 a4 c4 g3 f6+ Ke6 c5 g2 g6 a3 g7 a2 c6 h4 b6 f3 c7 f2 f7 h3 b5 h2 b7 Be7 f8N+ Kf7 b6 Bg4 c8N Bd7 e6+ Kf6 e5+ Kf5 Ng6 Be8 Qe1 Kg4 Nd6 Ba4 Ne2 g1N Be3 Rh3 Nef4 Rg3 Bg2 Bd7 Nf5 Bb4 e7 Nc6 b8Q Ba3 e8B Nh6 g8N Nf7 b7 Nh3 e6 Bc1 e7 Be6 Rf1 h1B Nfh6+ Kg5 Qc7 Bg4 b8N Bd1 Nh8 Kh4 Nd7 Rg6 Nc5 Re6 Be4 Bg2 Nb7 Rd6 Qc8 Rd8 Qf5 Rc8 Rh1 Nd6 Bh5 Nf7 e8Q Bf1+ Be2 Na5 Qb5 Nc6 Bg2 Ba4 Nc3 Bd1 Rb1 a1B Rb4 Bab2 Nb1 Ba3 Rc4 Be7 Bd2 Bd8 Ba5 Bg5 Bb6 Bb2 Kd2 d3 Ke3 d4+ Ke4 d2 Bh5 Bc1 Qfc5 Bg4 Rh2 d1N Rh1 Bf3+ Kf5 Nb2 Rg1 Nb8 Qcc6 Bd1 Qce4 Nc6 Qc2 Bd2 Rh1 Bc1 Nhg6+ Kg3 Rg1 Be7 Nf6 Nhg5 Nh8 Rf8 Be4+ Kh4 Bef3 Nh7 Rg8 Rd8 Re8 Nf8 Nfg8 Ng6 Bg2 Bg5 Rf8 Rd6 Rc8 Rd8 Rb8 Rc8
NqB1QNK1/5Qrp/2Nn4/B1pQ1q1b/N1r1n3/p2b3R/kNRNB3/8 w - - 0 1 illegal: No possible last move, all moves rejected
4B3/2BR1B2/n1Q1NQ1K/2bbbppn/1r3B2/3B2pB/2QRNN1k/1b3q2 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 f4 e5 fxe5 b5 a4 c5 axb5 a4 dxc5 Ra5 bxa5 Rh5 Qd2 Rh6 Qd1 Rh8 Kf2 Ke7 Ke3 Ke6 Kf4 d5 e4 g6 h4 a3 c4 a2 h5 g3 a6 f6 a7 d4 a8N d3 h6 d2 h7 Be7 b6 Nh6 b7 Rf8 h8Q Qc7 c6 Qd6 c5 Re8 c7 Bd7 c8B Nf5 c6 Bf8 c7 Ne7 Nh3 Ng8 Nc3 Ne7 Rh2 Na6 b8B Nf5 Rb1 a1B Rb7 Qc5 Ra7 Ke7 e6 Kd6 e7 Qc6 e5+ Ke6 Bd3 Qb7 Qc2 Rd8 e8B Ng7 Kg4 g5 Bf7+ Ke7+ e6 Qg2 Qh6 Bc6 Qh8 Kd6 e7 Ke5 e8B Qf1 Bcd7 Bc5 c8Q+ Kd4 Nc7 Ke3 Qb7 Bg2 Qc6 Bh1 B7f5 Rd6 Ne6 Rd4+ Ne4 Rb4 Rd7 Bad4 Nc3 Bd5 Bc7 Be5+ Nef4 Ne6 Kh5 Kf3 Kh6 Ng7 Ne6 Nh5 Rg2 Rb8 Re2 Rb4 Nf2 Kg2 Bh3+ Kh2 Qg7 f5 Qf6 Rb6 Qb1 d1B Bf4 Rb2 Rd2 Rb4 Ne2 Bc2 Qb3 Bb1 Qd1 Bcd4 Qdc2 Bc5
1rrR1r2/2np4/2bQ1NR1/1Bqn1p2/3pQ1Nk/1Q1Q1B2/r1QN4/R3KQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Nf6 axb5 Ba6 d4 Rg8 d5 Bc8 Be3 Rh8 Bd4 Ng8 c4 cxd4 c5 Ne7 c6 Bb7 c7 Ng8 c8B Bc5 d6 Bb6 Kd2 Nc6 Ke1 Bc7 dxc7 Nb8 e4 Ke7 b4 a5 h4 g5 b6 f5 h6 g4 h7 g3 b5 a4 e6 Kf6 e7 a3 e8Q g2 e5+ Kg7 h5 Kh6 e6 Kg5 h6 a2 e7 Nc6 Nd2 Ne5 Ngf3+ Kg4 Nh2+ Kh4 Rg1 Ra7 Ng4 Ba8 b7 Ra4 b8Q Nf6 b6 Nc4 b7 Na5 Bb5 Rf8 h8R Nc6 h7 Rb4 Qb1 Na7 Qd3 Rb2 Rg8 Nh5 h8Q Rb3 Qh6 Rb2 Qf4 Nf6 Qff1 Nd5 Rg6 Ne3 Rh1+ Kg3 Rh8 g1R Qf7 Rc2 e8N Qe7 Qd5 Qc5 Nef6 Rg2 Rhg8 Kh4 Qe5 Nd5 Qee4 Rf7 Rd8 Rf8 Rd1 a1R Rb1 Ra3 Ra1 Rca2 Bc4 Qc6 Qef3 Nc3 Nb1 Rgb2 Nd2 Rb6 Bd5 Qe6+ Qfe3 Rbb3 Bf3 Qe7 Qee4 Nab5 Qa7 Nd5 b8Q Rbb2 Qa4 Rc3 Ba6 Rbb3 c8Q Qd6 Qcb7 Rc8 Q7c7 Qb6 Qcc2 Bc6 Qd6 Nbc7 Qaa3 Rb4 Qab3 Qc5 Bc4 Rb7 Bb5 Rbb8
BN6/B1p1B3/n3kpK1/3RB2r/b1B5/QNN1R1Bp/Q1Rqr1pb/5q2 w - - 0 1 legal: proof: f4 b5 g4 d5 c4 b4 cxd5 b3 f5 Kd7 f6 exf6 axb3 Nh6 b4 Ng8 b5 Ke8 g5 Kd7 h3 Nc6 g6 Ne5 gxf7 g5 h4 g4 Nh3 Nc6 Ng1 Nd4 Rh2 Ne6 Rh1 Ng5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kf2 h5 Ke3 a5 Kf4 g3 Kf5 g2 b4 a4 e4 a3 d4 a2 b6 h4 g6 h3 b5 Qe8 g7 Be7 f8B Bb7 d6 Rc8 e5 Bd8 d5 Ra8 e6+ Kc8 d7+ Kb8 e7 Ra7 d6 Ra3 Ne2 Bc8 b7 Rd3 Bf4 Re3 Nbc3 Re4 Rc1 a1Q Qb3 Qa8 Bg3 Qf7 e8B Qe7 Nd4 Qa3 Bc4 Re1 Rc2 Qe6+ Kg6 Re4 Re1 Re5 Re3 Qa8 Qa3 Be7 d8B Qd7 Nb3 Rhh5 Bef7 Qa5 Bfd5 Qe6 d7 Bd6 Bde7 Qf5+ Kf7 Qb4 d8R Qf1 Kg6 Re6 Be4 Be5 Rd4 Bd7 Rd5 Bc6 Bd6 Bf4 Be5 Ne7+ Kf7 Bd7 g8Q Nc6 Kg6 Qd6 Qf7 Nb4 Be7 Na6 Bf3 Qc5 Be4 Qd4 Bf3 Qd2 Be4 Ka7 b8B+ Kb7 b6 Ba4 Ba7 Kc6 b7 Qff2 Bh4 Bh2 Bhg3 Qf1 Qg8 Rd6 Qa8 Kd7 b8N+ Ke6 Qb7 Nb4 Qa6 Rb6 Qa5 Na6 Qa2 Rb7 Qb4 Rb6 Qba3 Rd6 Bf3 Rd8 Be4 Re8 Bf8 Qa1 Rc5+ Qd5 Re1 Rd8 Re3 Qf1 Be7 Rd6 Bb5 Qdd1 Ba8 Rd2 Rd5 Re2 Bc4 Qd2
Q1Q5/b2q1R2/4B1kq/1RQB1qN1/B1b1r1B1/nqNr2R1/B3K3/2qn2Bb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 b4 h5 g4 d5 e4 a5 c4 f5 g6 h4 g5 a4 b6 a3 e6 a2 g7 h3 e7 Kf7 e8B+ Ke7 g6 Kf6 b7 d3 b5 f4 c5 d2+ Ke2 d4 b6 h2 e5+ Kg5 e6 Nf6 g8B Qd7 e7 Nd5 c6 Rh4 c7 Na6 b8R Ne3 b7 Nb4 g7 Nbc2 Be6 Na3 Qc2 Nd1 g8B Bg7 Bg2 d3+ Kf3 Rg4 Nc3 Bd4 Bh5 Ba7 e8B Qd6 Rb1 a1Q Rb3 Qb6 Bb2 Qc1 Ba4 Rh4 Bhg4 Kg6 Nh3 Qc6+ Bd5 Be6 Rf1 h1B c8Q Qd7 Rb5 Qd6 Ba2 Bc4 Ng5 Qd7 Ke4 f3 Be6 f2 Kf3 Qh7 Qc5 Qh6 Re8 Rd8 b8Q Rd6 Qa8 Rd5 Rf8 Rd7 Rg1 f1Q+ Ke4 Qf6 Rf7 Qe5+ Kf3 Qf5+ Kg3 Rd8 Bgd5 Rd6 Bh3 Re4 Bg4 Ne3 Qcc8 d1Q Qc5 d2 Ba1 Qe5+ Kf2 Rd8 Rg3 Rd7 Qb2 Qb3 Qc2 d1Q Bb2 Qb1 Bc1 Qdd4 Ke1 Nd1+ Be3 Qf5 Qcc8 Qc1 Qc5 Rf4 Bg1 Qdg7 Qcc8 Rd4 Qf2 Rd3 Ke2 Re7 Qe3 Qgh7 Bd7 Re4 B7e6 Rf4 Qec5 Rfd4 Rf8 Qd7 Rf7 Re4+
1B1Br2B/1b2Nn1q/1KnR4/RB2rQ1q/1kq2r1N/2rB4/R3Q3/2bN1r1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 a5 d4 h5 e4 f5 g6 c5 g5 a4 e5+ Kc7 d6+ Kb6 d5 c4 d7 c3 e6 h4 d6 a3 e7 h3 e8B h2 g7 f3 Ke3 a2 Kd4 c2 g6 f4 Bb2 c1R Qe2 f2 Nf3 Qc7 d8B Be6 d7 Rh5 Nh4 f3 Nc3 Na6 Nd1 Nh6 g8N Rc2 g7 Bf5 Ne7 Bg4 g8B Re5 Bd5 Rc3 Bg6 Bh5 Bd3 Nb8 Rg1 h1R Rg5 Nf7 Bc6 Rh3 Bg2 f1R Bh1 f2 Rg2 Ree3 Kd5 Rc4 Bh8 Bh6 Rg5 Rf4 Re5 Ka7 Kc5 Bf3 Rf5 Bd5 Rg5 Qe5 Rg2 Qh5 Rg5 Bc4 b6+ Ka6 b5+ Ka5 b7+ Ka4 Rd5 Re5 Kb6 Kb4 Rc5 Bd5 Rc2 Na6 b8Q Be4 Qc8 Nb8 Rc3 Rg3 Ra3 Bg5 Ra5 Qh7 Rc1 a1Q Rc2 Qb1 Rca2 Qh5 Bc7 Bh6 d8R Bf3 Be8 Bb7 Qf5 Nc6 Rd6 Rh3 Bd7 Re8 Bd8 Bg5 Kc7 Qc2 b6 Qb1 Bb5 Rc3 Bd3 Ba8 b7 Qc2 b8B Bb7 Kb6 Qb1 Qh3 Qc2 Bb5 Qch7 Bf5 Rg1 Nc8 f1Q Qe4+ Qc4 Qe2 Rff1 Ne7 Rg4 Bd3 Bc1 Qhf3 Rd4 Qf5 Rdf4
4Nb2/RNQ2b2/b2rbKQr/2nRBN2/1b2qNn1/N4BR1/2N2r1q/B1k5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 g7 c3 f7 h4 d6 e6 f5 h3 b6 c2 b7 Kb3 f6 Rh4 Qd3+ Ka4 b4 Rh8 b5 Rh4 b6 Nh6 g8N Nf5 Na3 Na6 b8Q Qe7 d8R Rh5 d7 Rh6 b7 Ne3 Ne2 Nc5 Nd4 Ra6 Rg1 h1B Qc7 h2 b8B Bd5 Nf5 h1B Rg3 Rd6 Bb2 c1R Bg2 Rf1 Bf3 Rf2 Qa6+ Kb3 Qac6 Bg7 f8N Ba6 Ng6 Bf8 f7 Qh4 Bc3 Qh2 Nf6 Bg2 Nf4 Bh3 Ne8 Bdc4 Rd1 a1Q Rd5 Qb1 Ba1 Qd3 Rc8 Ka2 d8N Bg4 Ng6 Qe4+ Kf6 Bh3 Nb7 e5+ Kg5 Bg4 Nf4 Kb3 Rd8 Ka2 Rd7 Kb3 Nb5 Kc2 Na3+ Kc1 Re7 Rd8 Qg6 Rd6 Nfg7 Be6 Nf5 Bg7 f8N Bf7 Nh7 Bf8 Nhf6 Be6 Ng4 Bf7 Rd2 Bce6 Kf6 Nd1 Nge3 Rb6 Na5 Qb7 Qc6 e4 Nec2 e3 Nd5 e2 Nf4 e1B Bbe5 Ne3 Qc8 Qc6 Ra7 Qe4 Qc7 Rd6 Rd5 Bb4 Nb7 Ng4+
2r4N/b1n5/2q1kNQ1/n1R1B2R/1Bbq1RK1/3QQ2b/2BQr1Q1/Q2b1rn1 w - - 0 1 illegal: No possible last move
B5q1/7B/1qR3r1/kB1NNR2/2K2QRn/1Q1b1bB1/BN2nn1q/qrb3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 Ke2 c5 Kd3 Kc7 b4 Kb6 g4 h5 d6 f5 g6 a5 g7 f3 d7 a4 g5 f4 e5 a3 g6 f2 e6 h4 e7 f3 e8B a2 Nh3 Qf6 d8N Bf5+ Kc4 Qe5 d4 Bd7 d5 Bc6 d6 Qe7 d7 Bb7 Be3 Ra6 Nd2 Nc6 Qb3 Rh6 Nf7 Qd8 Nf4 h3 Rc1 a1Q Ne5 h2 Rg1 h1Q Bg2 Nge7 g8B Qh2 g7 Nd4 Bh7 Rg6 g8B Ne2 Be6 Qc7 d8R f1Q Rd5 f2 Be4 Bc6 Rg4 Qfg2 B6f7 f1B Bg1 Nf5 Rc2 Kb7 b6 Bh6 b5 Nh4 Rc3 Ra8 Be6 Rb8 B8d7 Ka8 b7+ Ka7 b6+ Ka6 Rc1 Ka5 Rc2 Ra8 b8Q Qa7 b7 Qb6 Qf8 Ra7 b8B Rb7 Ned3 Qgg3 Rf5 Bg5 Bg2 Bf3 Nd5 Bh6 Nb2 Be3 Ne4 Bc1 Bh1 Qgg2 Nf2 Qgg3 Rc3 Qgg2 Bg3 Rb8 Kd3 c4+ Kc2 Re8 Ne7+ Bd5 Bhg8 Rd8 Qh6 Rg7 Be5 Bf4 Bb5 Qe4+ Nfd3 Nc1+ Rg2 Bg5 Bc7 Qg4 Bh7 Bb7 Bf4 Bc6 Ne5 Rd1 Bd5 Nd3 Be4 Nf2 Rgg3 Re1 Kd2 Rc1 Bb1 Bd3 Ba2 Rb1 Rc1 Bg2 Kc3 Bge4 Rf6 Qge6 Rf5 Qg8 Rg4 Rg6 Bf3 Qa6 Kd4 c3 Bg3 c2 Kc3 Be3 Qf4 Qb6 Bg2 Be2 Bh1 B4d3 Ba8 Bd1 Nd5 Bf3 Re1 c1N Re2 Qa6 Rc2 Bd2+ Kd4 Ne2+ Kc5 Bc1 Rc4 Nc3 Kd4 Qb7 Rc6 Ne2+ Kc5 Bc2 Kc4 Qb6 Rff6 Bce4 Rf5 Bd3+
brNBnR2/1N1r2B1/Qrn2BK1/2bB4/n3q1B1/1qB3q1/3R1RQ1/1kr3N1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 b6 h3 d7 h4 g6 c4 f6 h2 Kf5 e4 b7 a4 d5 a3 d6 h3 f7 c3 g7 e3 Qf3 Kb3 Kg6 Kc2 b4 e2 f5 e1N b5 a2 b6 Nh6 g8B Nc6 b8Q Bg7 f8R Bd4 f6 Ng2 b7 Ng4 f7 Nf6 Bb2 Ne8 Nd2 Ra7 Nc4 Ne1 Qa8 Nd3 b8B Qb6 d8N Bb7 d7 Bc5 Rd1 a1R Be5 R1a6 Nd6 Qb3 Be2 Rb6 Rd2+ Kb1 Qg2 c2 Nc8 c1R Bbc3 Nb2 Bf6 Na4 Bh5 Rh7 Bg4 Rh8 Qb8 Ba8 Qd6 Rab7 Rf2 Rb8 Nb7 Rh5 d8B Rd5 Qe6 Rd3 Qc4 Rd7 Qa6 Qa2 Ne2 Qb3 Rd1 h1Q Ng1 Qh2 Rd4 Qg3 Rdd2 Nd6 Re8 h2 f8B h1Q B8g7 Qhh4 Rf8 Ne8 Bd5 Qh1 Qh3 Qhf3 Qg2 Qe4+
1n1bQBK1/2bB1R2/7R/Bq1N1N1r/n3Q2b/2N5/B3Bn1k/2bbrRbB w - - 0 1 illegal: No proof kernel
k1bb4/N5BK/R1bQ1R1N/4bqR1/1Nnnq1b1/2RQ1brR/7r/1B4RQ w - - 0 1 illegal: No possible last move, all moves rejected
1b1n1nBn/nq1NN1B1/KQ6/nN2Q3/1NB1r1R1/5Q2/RN1N2b1/br2k1b1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 g4 c5 d4 h5 f4 e5 g5 a5 f6 a4 d6 a3 g6 h3 d5 h2 g7 h4 f5 h3 d7 a2 b6 Nc6 Kb5 c4 f7 c3 b7 c2 b8Q Bb7 f6 Bd6 f8N Qc7 d8N Na7+ Ka4 Rh4 f7 Nf6 g8B Nh7 Ng6 Nf8 Bf4 c1N b5 Nb3 b6 Na5 Ne2 Kf3 Ne7 Kf2 Nd2 e4 Nd4 e3 Be5 e2 Rg1 h1N Rg4 e1B Nb5 h2 Ndc6 Ng3 Nb4 h1N Bg7 Nf5 Bc4 Nd4 Qb3 Be5 d6 Ndc6 d7 Ng3 d8Q Ne4 Nd3+ Ke2 Qc3 Nd6 Nb2+ Kf2 Qe8 Nd8 Qh3 Bf3 b7 Bg2 Qc6 Bd4 Qb6 Qd7 Q8c7 Rb8 Qcc5 Qc8 Qe5 Qc7 Rb1 a1B Qf3+ Kg1 Rc1 Be3 Rc3 Bg3 Ra3 Qc6 Ra2 Qe4 Qd1+ Kf2 Qf3+ Ke1 Kb4 Bg1 Ka4 Nfe6 f8N N6f7 Nd7 Nf8 Kb4 Nh8 Ka4 Rc8 b8N Rc7 Nbc6 Rb7 Nb4 Bf4 Qef6 Bb8 Qe5 Rc7 Bcd5 Rc1 Bc4 Rb1 Nc3 Nc8 Kb5 Na7+ Ka6 Bf1 Rg6 Bg2 Nb5 Rg4 Qec7 Qc6 Qe5+ Re4 Rg4 Qb7+
1Qb3bB/Rbq5/1bn2b1R/1R1nk2B/n3NrRN/1n2r3/3KR1B1/2N2QR1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 g5 e5 b6 a5 b5 a4 f6 a3 b7 h3 f7 h4 f5 a2 g6 c4 f6 c3 b6 e4 g7 h2 Ne2 e3 Rg1 h1B Nd2 h3 Bb2 h2 Bg2 c2 Ne4+ Kd7 d6 Ke6 d7 c1B d5+ Kf5 d6 Be7 f8R Ra5 f7 Rh5 Re8 Qc7 d8R Nc6 b8Q Re5 f8N Rg5 b7 Bf6 d7 Rg4 Ng6 Nge7 g8B Nd5 Bf7 Rf4 Re7 Re6 Rh8 Re5 d8R Re6 N2c3 e2 Nh4+ Ke5 Rh6 Be3 Bh5 Bb6 Kd2 e1N Rg8 Nd3 Rg4 Nc5 Qf1 Na4 Re1 a1N Re2 Nc2 Na2+ N2d4 Reg7 Re7 Nc1 Re8 Bh3 Bf3 Bg2 h1B Rg3 Bfg4 Ra3 Bge6 Rg4 Bg8 Bc3 Nb2 Ra7 Re7 Qa8 Na4 b8R Ba5 Rb5 Bb6 Qb8 Re6 Bb4 Re8 Bf8 Re6 Bg7 Nb3+ Kd1 Re8 Bh8 Nd8 Ng5+ Kd6 Ra2 Ne7 Bh3 Bhb7 Bg2 Ndc6 Re2 Nd5 Ke1 Re3 Ne4+ Ke5 Kd1 Nba5 Kd2 Nb3+
2R1Q3/bbK1Rb2/3nr1N1/2kn1Nrb/1N1br1NB/q1r5/3BN3/QB3N1R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 f4 a5 g4 h5 b4 c5 d4 h3 f6 c4 b6 a4 f5 a3 g5 c3 g6 h4 b5 h2 g7 a2 b7 c2 f7 h3 b6 Ne7 g8N Bg7 f8R Nec6 f6 Qe7 f7 Rh6 Nd2 Qg5 Ne2 Rh5 Nh6 Ra6 Ng4 Bd7 Rc8 Ne7 f8N Nf5 Ng6 Nc6 b8N Nb4 b7 Be6 Nc6 Qe7 b8N Bf7 Bg2 Rg5 Nf1 Bh8 Bd2 c1R Qe1 Qa7 Nce7 Rc3 Nbc6 Bg7 Rc1 a1B Rc2 Bb2 Qa1 Rb6 Rc1 Qa3 Re1 Ra6 Ng8 Bf6 N8h6 Bd8 Bf3 Bb6 Bg2 Ba7 Bf3 Kd7 d6 Nd5 Nb4 Ke6 d7 Kd6 d8B Ra4 Rg1 h1B Bf6 Bg2 Rh1 h2 Bd8 Nc7 d5 Kc5 d6 Bh3 Nge3 Bg4 d7 Bh5 Nhg4 Ra6 Bg2 Rc6 Bf6 Nd5 d8Q Nd6+ Kf3 Nb5 Qe8 e4+ Kg3 Nd6 Bd8 Nc7 Kf4 Rb6 Nf5 e3 Bc6 Nd5+ Ke5 Ra6 Rg1 h1B Be7 Be4 Rh1 Nc7 Ba4 Bb7 Bc2 Rc6 Bb1 Nd5 Ngf4 Rg7 Bh4 Rg5 Nd4 e2 Ng6 Bb8 Rc1 e1R+ Ne2 Ba7 Rc7 Bg8 Rf7 Ra6 Ke6 Rb6 Kd7 Ra6 Re7 Bf7 Ng1 Re6 Ne2 Ra4 Nc2 Rae4 Nb4 Kb6 Rc2 Rd3 Rc8 Bd4 Rb8 Kc5 Rd8 Nb6+ Kc7 Rc3 Rc8 Nd5+
n1K2N2/q1Q2Nk1/1r4N1/3qnbNr/1pq2B2/1QnR2R1/1BN1rb1Q/2NB4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 e5 Ke4 g5 h4 b5 a4 c5 f4 g4 d4 c4 h6 g3 d6 g2 Kd5 e4 h5 b3 h7 b2 a5 b4 h6 e3 a6 e2 a7 e1Q d7 c3 f6 c2 f5 Qd2 Be2 Qd3 Na3 b1Q Rh3 Be7 Bf4 c1R Qb3 Rc6 Bd1 Kf8 f7 Qe8 d8N Rg6 Nc2 Bf6 Kd6 Qa6+ Kc7 Qba2 d5 Rg5 d6 Qe7+ d7 Qb1 Ra3 Bc3 Ne2 g1N Nc1 Bd4 Rg3 Nc6 Rd3 Rb8 a8Q Bf2 Qa7 Qa1 Qb7 Qe4 Ne6+ Ke7 f8B+ Kf6 d8N Qd5 Nf7 Rh5 Neg5 Ne5 Rg3 Ne2 Bg7+ Ke7 Qa7 Nc3 f6+ Ke8 Qb6 Ne7 Qc5 Rg8 h8Q Rb6 h7 Qac4 Rd3 Bf5 Rg3 N7c6 Qa5 Nd7 Kc8 Nce5+ Qc5 Rh2 Qc7 Rg2 Nh6 Rh2 f7+ Ke7+ f8N Rh5 Nhf7 Ke8 Bf6 Rg6 Bg7 Rge6 Qg8 Ke7 h8N Qa2 Qh7 Qa1 Bh6 Kf6 Nhg6 Qa2 Qb2 Re7 Rb3 Qa7 Qg8 Ne4 Rbd3 Nc3 Qh7 Ng4 Qb3 Re2 Be3 Nge5 Bd4 Ne4 Ba1 Nc3 Bb2 Nb8+ Nge6 Rh3 Bf4 Na6 Qc6 Nc7 Qb7 Na8+ Qc7 Rh2 Qh3 Rh1 Qg2 Rh5 Qh2 Be4 Neg5 Kg7 Rde3 Bd3 Ref3 Be4 Rd3 Bf5+
Nr3kr1/2bB2qr/n2R2Bn/Rbp5/8/1R3B1Q/NB1QBn2/2KBb1qN w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 e4 h5 g4 a5 d4 f5 Kd2 c5 b4 h4 b6 h3 g6 h2 g7 a4 b7 a3 e6 f4 b5 a2 e7 f3 b6 f2 g5 Bd7 d5 Nc6 b8R Na7 b7 Bf5 e5 Rh4 d6 Bh7 g6 Rg4 Bb2 c3+ Kc1 c2 Qd2 Rg2 Nc3 Nb5 Be2 f1N Nh3 Nc7 Nf2 Ng3 Rd1 Nh6 g8B h1Q g7 Ra5 Bb3 Ra4 g8B Rc4 Bd5 Ngf5 Bdf3 Qg1 Nh1 Ne3 d7+ Kf7 Ba4 Na6 e8B+ Ke7 e6 Rb4 Qd3 Neg4 Bg6 Qc7 d8N Rb5 Qd2 Nf2 Bb3 Bg7 Ba4 Kf8 e7+ Kg8 e8B Kf8 Bec6 Be5 Bd7 Bg8 Bb3 Bc4 Ba4 Rb4 Bb3 Bb5 Ne6+ Ke7 Ba4 Bg3 Bb3 Qe5 Nc7 Qg7 Na8 Bc7 Rb1 a1R Na2 Rgg4 Rh8 Rg3 b8Q Rh4 Qb6 Rgg4 Rh7 Kf8 Qe6 Rg2 Qh3 Rgg4 Nc3 Raa4 Ra1 Rab4 Ra5 Rg2 Na2 Rg3 Qe1 Rg2 Rd6 Rh5 Kd2 c1B+ Kc2 Bg5 Qd2 Bh4 Ba4 Bc6 Bb3 Rb8 Ba4 Bb5 Bb3 Nd1 Kc1 Be1 Ba4 Nf2 Bad1 Qh8 Re7 Qg7 Re3 Qg8 Nc3 Nf5 Bge8 Rh7 Na2 Nh6 Rb3 Qh8 Beh5 Rg8 Bg6 Qg7
3n2Bk/Q2K3p/3q3R/R1NQ3r/1nnR3q/3R1NRr/b2Q3B/brb3RN w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kg7 Kf4 a5 Ke5 c5 f4 e6 b4 c4 d4 h3 g4 c3 d6 a4 d7 a3 g5 h2 g6 c2 d5 a2 f6+ Kh6 b6 Ra4 f7 Kg7 d6 Bb7 f5 Bc8 b5 Ra8 b7 Qe8 d8R Nf6 d7 Bc5 f8R Nd5 b6 Ra5 Rf6 Ra4 Nd2 Rc4 Ngf3 Bb4 Ne4 Na6 b8R Qf7 b7 Bc3+ Kd6 e5 Qd2 Rc5 Rg1 h1R Bc4 Nb6 Ng3 Rh3 Nh1 e4 Bb3 Qe8 Bg8 e3 Re6 e2 f6+ Kf8 f7 Kg7 f8N e1Q Ra8 Rch5 b8Q Qh4 Rg3 Nc7 Ra5 Qee7+ Kc6 Ba6 Qa7 Nc4 Bb2 Be5 Rag1 a1N Rd6 Bf6 Be5 c1B Rd4 Nc2 Rb8 Ba3 d8R Bc1 Rb6 Ne6 Nd7 Bc8 Nc5 Nb4+ Kb5 Bb7 Rd3 Bc8 R8d4 Nd8 Bc7 Be6 Rc6 Ne3 Kb6 Ba2 Rcd6 Kh6 g7 Qe5 Bb8 Qef4 Kc7 Nc4 Bf7 Re8 g8Q Re1 Kd7 Rf1 Qg4 Re1 Qe6 Rd1 Qd5 Re1 Bg6 Kg7 Bf7+ Kh8 Bg8 Be5 Rh6 Bg7 Re4 Ba1 Red4 Qd6+ Kc8 Qg6 Rg5 Ba3 Kd7 Rb1 Bh2 Bc1 R5g3 Qd6+
6R1/3Q1R1N/RR1Q1nr1/QR3Nq1/4n3/b1b1pB2/2bNr1n1/kb1K1RBb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 g5 e5 b6 a5 b5 a4 f6 a3 b7 h3 f7 h4 f5 a2 g6 c4 f6 c3 b6 e4 g7 h2 Ne2 c2 Be3 c1N Nd2 h3 Bg1 e3 Ng3 Na6 b8R Bf5 b7 Ne2 Bg2 Nc5 Bf3 Ra6 Qa4 Be7 f8N Bb1 f7 Ne4 Nh7 Ngf6 g8R Nf4 f8R Ng2+ Kd1 Bd3 Qa5 Rb6 Rc1 a1B Rf7 Bc3 Ra8 Rb2 b8R Rc2 Ra1 Ra2 Rg6 Rg8 Rb5 Bf8 Rh6 Rg6 Rab1 Qe7 R1b4 Qe5 Ra4 Be7 Rg8 Qg5 Rab4 Kd7 d6 Ke6 d5+ Ke5 Rb2 Kd4 d7 Ba3 d8Q Bb1 d6 Kd3 Bf2 Kd4 Rg1 h1B d7 h2 Rf1 Bd3 Rb6 Bb1 R2b5 Bd3 Nb1 Re2 Bg1 Kc4 Ra6 Kd4 Nf5+ Kc4 Rc5+ Kb3 Nd2+ Ka2 Rb5 Ka1 Qdb6 Bb1 d8Q Nd6 Rh4 Rg7 Bg4 Rg6 Rc5 Ne1 Qd7 Bhe4 Bf3 Bed3 Rb4 Nde4 Qbd6 h1B Rbb6 Ng2 Rcb5 Bdc2+
NNBkn1nb/2R2q1b/3N2pn/4R3/QnN3r1/5Q1N/2R2K1B/n3NrQb w - - 0 1 illegal: No possible last move, all moves rejected
4bn2/N3n3/Kn4b1/2NBRr2/n3NN1k/1p1q2Rr/Q1NNQ2B/b1R1Q2r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kb5 c5 h4+ Kf4 d4+ Ke4 a4 e5 f4 g5 d6 b6 d5 c4 h6 c3 f6 Kf5 a5 c2 h5 e4 h7 b3 a6 b2 a7 e3 h6 g4 d7 g3 d6 g2 f7 e2 Nc3 Kg4 f5 b1B f6 Qe8 Rh5 Nc6 d8N Nb4+ d7 Nc6 Ne6 Na5 Bf4 c1N Ne4 Bc5 f8N Nc4 f7 Bd4 Re5 Nb3 N6c5 Bd3 Nfe6 Bf2 f8Q Qd8 Bh2 Kh4 Qe8 e1N Nd4 Nc2 Rc1 Ne7 Qe2 Rf8 h8R Rf5 h7 Bb7 Nd2 Bc6+ Ka6 b5 Nde4 b4 Rg8 Be1 h8N Bc3 Rg6 Ba1 Rg3 Rb8 a8Q Nb6+ Nb5 Ncd4 Qa7 Bc2 Na3 Bb1 Nc2 Ne6 Qe1 Ra8 Bc4 Nf8 Bd5 Ba4 Ne2 g1R Nf4 Rc8 Nf7 Rh1 Nfd6 Rc6 Nc4 Rh6 Ncd2 Rh8 Kb7 Bb5 Qa2 Rh7 Na6 Nc5+ Ka7 Nca4 Nac5 Bc6 Ka6 b3 Qe2 Qb8 d8N Qd6 Qe1 Bd7 Nc6 Rh6 Qf7 Be8 Qe6 Rh7 Na7 Rhh5 Bb7 Qd3+ Qc4 Rh7 Bd5 Qf1 Ba8 Rfh5 Nb4 Rf7 Ng5 Bg6 Be4 Rf5 Bd5 Qf3 Qce2 Qd3+ Nc4 Rh7 Nc2 Rh6 Rf3+ Kg4 Nge4 Rh3 Rg3+ Kh4 Rb1 Qf3 Ncd2 Qc3 Rc1 Qd3+
3R3B/1k2B2n/1B1bKRnq/b3B2N/1r1Qb1R1/1B1qb2p/2rBbQNN/8 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 b4 h5 f4 a5 d4 h3 b6+ Kb7 b5 c4 d6 a4 Kd5 h2 g5 h4 d7 h3 f6 e4 f5 e3 g6 c3 f7 a3 g7 e2 f6 e1B Bd2 a2 Bc4 c2 Nf3 c1Q Rg1 h1B Ke6 Be7 f8Q Rh6 d5 Ra6 d6 Bg2 Na3 Rh7 f7 Ra4 Nc2 Ra7 Ne3 Qc2 Bb3 Ra4 Nh2 Nf6 g8N Nh5 Nf6 Bh1 Ng2 Ng3 Nh5 Ne4 Rf1 Qc5 Rf6 Qc6 Qg4 Bf2 Rg1 a1B Qh4 Bfd4 Qg7 Bac3 f8B Bc5 Qf2 Rb4 Qg4 Rh8 Bg7 Rg8 Bh8 Be3 Qd1 Rg5 Qg4 Rc5 Qgf4 Ka8 b7+ Ka7 b6+ Ka6 Rg6 Nf6 Qd4 Nh7 Rf6 Bf8 Ngf4 Be4 Rg4 Qcc7 Ng2 Nc6 b8R Ne7 b7 Qc6 Ra8+ Kb6 b8B Ba6 Bc7+ Kb7 Bb8 Be2 Bc7 Qe8 d8B Ng6+ Be7 Qd8 Rc8 Qa6 Bb6 Qd3 d7 Qe8 d8B Qc6+ Bd6 Rcc4 Be7 Rc5 Bc1 Be1 Rd8 Rc2 Kf7 Bc3 Be5 Be1 Bd2 Qd6 Bg3 Qf4 Ke6 Qh6 Bec5 Bd6 Be5 Bc7 Bf8 Bd6 Be7 Rbc4 Bc1 Ba5 Bd2 Rb4
1b4bN/5N1k/1Q2NKp1/1R2n1Rn/N3q1NB/b2QR2b/1r2Br2/b3q1BN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 Kf3 f5 d4 Kf7 e4 a5 h4 c4 b4 c3 b6 a4 d6 g6 d7 Kg7 d5 a3 h6+ Kh7 h5 a2 e5 c2 b7 Qe7 d8N Qg5 e6 Ra4 e7 Bg7 e8N Be6 b5 Be5 d6 Ra5 b6 Ra3+ Qd3 Ra6 d7 Nc6 b8R Bb3 b7 Qe7 Qe2 Rb6 Be3 c1B Nh3 Rb4 Nf2 Ba3 Nc3 Nf6 Re1 a1B Na4 Nd5 Rg1 Kg8 h7+ Kf8 h6 Qf6 Nh1 Qe7 Nf6 Ba2 Rg3 Rb2 Bg1 Rg8 h8B Rg7 h7 Rf7 Qd2 Qe6 Re3 Bed6 Ke2 f3+ Kd3 f2 Be2 f1Q Rg2 f4 Qc2 Ncb4+ Kd4 f3 Qd3 f2 Rg4 Qe1 Bg7+ Ke7 h8N f1B Bh6 Bg2 Bg5 Kf8 Bh4 Kg7 Rg5 Bh3 Ng4 Be5+ Ke4 Bc7+ Kd4 Qc6 Ke4 Kh7 Kd4 Rf2 Ke4 Bb6 Ke5 Qc4 Ke6 Nf4+ Ke5 Qe4+ Kf6 Bg8 Ne6 Nc6 d8N Bbc5 Ndf7 Bf8 Rc8 Bfd6 b8Q Ne5 Rc5 Bc7 Qb6 Bb8 Rb5 Nh5#
1B4N1/Qp5r/1b4N1/n1bb1n2/1bB2q1B/BQb3R1/1B3Rqk/2KQrB1N w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 d4 Kd7 Kd2 g5 h4 f5 a4 c5 e4 f4 h5 g3 h6 g4 e6+ Kd6 e5+ Ke7 a6 g2 h7 g3 a7 c4 a5 f3 d6+ Ke8 d5 f2 a6 Qb6 e7 Kd7 e8B+ Kd8 e6 Qa5+ Nc3 Nd7 Nf3 g1B Nh4 g2 Rh3 Ne7 Ng6 Ng8 Bf7 Qb5 Ne4 Nb8 e7+ Kd7 e8N Ne7 Ba3 c3+ Kc1 c2 Ng3 Qc4 Nh1 Nbc6 Rg3 Nf5 Ra2 Na5 Bg8 Rb8 a8Q Qd4 Qa7 Qf4+ Qe3 Bg7 a7 Bc3 a8Q Bb4 Bd3 f1Q Qa7 Bf2 Be2 g1B Rb2 Qg2 Bf1 Bfe1 Ra2 Bec3 Nf6+ Kd8 d7 Kc7 d8B+ Kd6 Bf7 Be6 Ng8 Ra8 Bh4 Re8 Qed2 Bgc5 Qe3 Kd7 d6 Bd5 Rb2 Kc6 d7 Kd6 d8B Re5 Qed2 Re1 Qe3 Bb6 Be8 B6c5 Beb5 Bb6 Ra2 B4c5 Bbc4 B3b4 Kb2 c1B+ Kb1 Bcd2 Qb3 Bdc3 Bc7+ Ke6 Bb8 Ng7 Bce2 Kf5 Bc4 Ke4 Rf2 Kf5 Rgf3 Kg4 Kc2 Nf5 Kb1 Qfg3 Kc1 Kh3 Re3 Kh2 Rd3 Qd6 Rg3 Qc7 Nf6 Rf8 h8B Rf7 Ng8 Rh7 Be5 Re3 Bd4 Qf4 Bh8 Be1 Ba1 Bec3 B1b2 Re1+
1Q4r1/1nq1B3/3R3Q/1Q1Nr2N/1R2NqB1/k1rp4/qbBN3K/N1nbNr2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 g5 b4 d5 f4 Kd7 Kf2 Kd6 Kg2 a5 c4 e5 c5+ Ke7 f6+ Kd7 c6+ Kd6 h6 e4 c7 g4 f7 g3 f5 e3 b6 d3 f6 d2 h5 a4 h7 e2 h6 e1R b7 d4 b5 Kc5 b6 Kb4 Qe2 d1Q Nf3 a3 Rh4 a2 Bg5 Ka4 Nbd2 Bb4 f8Q Be7 f7 Bd7 c8B Bb4 Qb5+ Ka3 Bd3 Bg4 Be7 Ra7 Bc2 Re5 Ne1 Nc6 b8N d3 b7 Qd7 Na6 Qb1 b8Q Qb7 Nc7 Ra6 Nd5 Bd1 Bg4 Qc1 Kh1 g2+ Kh2 g1R Rb1 Bd6 Rb4 a1Q Qg7 Na7 f8N Nc8 Nd7 Rf1 Nc5 Qa2 Ncb3 Rc6 Na1 Nf6 Rh3 Re8 h8N Rg8 h7 Nh5 Ng6 Nf4 h8N Ne2 Ngf4 Qc7 Rh6 Rc3 Nh5 Bc5 Qg6 Bd4 Nf7 Nd6 Ng5 Nb7 Qh7 Qac4 Rd6 Qa2 Ndf3 Qe3 Ne4 Nc1 Nfd2 Qg5 Qh6 Qf4+ Kg2 Rb3 Kh3 Bb2 Kg2 Rc3 Kh3 Qf5 Kh2 Qf4+
2rb2B1/5bR1/NKQ1q1bN/B6B/p3rBNQ/2r3B1/2r2n1R/nR1qB1k1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 b4 e6 f4 a4 b6 c6 g5 h3 g6 h2 b5 h4 f6 h3 f7 Nd7 g7 Be7 f8R Qc7 b7 Nh6 b8B Nf6 g8B Rh7 f5 Ra6 b6 Nhg4 b7 Nf2 Rf7 N6e4 f6 Ra7 Be2 Ra8 Na3 Nc5 Nc2 Bd8 Bh5 e5+ Kc4 e4 d4 e3 Rb1 e2 Nf3 e1Q Ne3 Nb3 Ne5 c5 Kb5 c4 Qf3 c3 N3g4 c2 Nh6 Qd1 Neg4 Bf5 Rg7 Bg6 f7 Na1 Bg5 c1R f8B+ Be7 Bd2 Rc2 Be1 Rh8 Qe4 Ra6 Qg2 Rac6 Qf3 R6c3 Ka6 Kd7 d6 Qc4+ Kb6 Qe6 d5 Bf7 Bc7 Bd8 Be7 Bg6 Bg5+ Bf7 Bh7 Rg8 Bf4 Re8 Bg8 Rf8 Rg1 h1R Rg2 h2 Bg3 Rf1 Qf6 h1B Rh2 Be4 b8N+ Kc8 Na6 Kd7 Qf3 Bg6 Bf4 Bh4 Qg2 Rc8 Qe4 Bd8 Qc4 Ke8 Qc6+ Kf8 d7 Ke7 Ne5 Kf6 d6 Rh1 Bg3 Kg5 Neg4 Be7 d8B Bf6 Rg2 Rh4 d7 Be7 Rh2 Bf6 Ne3 Re4 Bce5 Be7 Bdc7 Bf6 d8Q Be7 Qd4 Bd8 Neg4 Rf4 Rg2 Re4 Bgf4+ Kh4 Bg3+ Kh3 Bef4 Nd3 Re2 Nf2 Qf6 Kg2 Qh4 Kg1 Rd2 Nh3 Rh2 Qdd5 Kb7 Nf2 Ba5 Qd1 Ka7 Rc7+ Kb6 Rc8+
RQQ4K/1q2bkB1/RrnRRbb1/3rrQp1/1BR1N2R/nr6/N2q2B1/8 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 a5 Ke3 e5 Ke4 g5 h4 c5 b4 g3 f4 c4 d4 c3 d6 c2 d5 a4 h5 a3 b6 g2 h6 a2 b7 Nc6 b8R Qb6 b5 Qf2 b6 Ra3 d7+ Kf7 d8R Bc5 h7 Rf3 b7 Qh4 f6 Qh3 f5 Ra3 d6 Na5 d7 Bd4 Qd3 Nh6 Ra8 Ng4 b8Q Qh6 Nd2 Nb7 Bb2 c1B Ne2 g1R Bg2 Qh3 Nc3 Qh2 Re8 Rd1 d8R Ne3 Rd6 Nc4 Ree6 Nd8 Rf1 Rg8 h8R Rb3 Rf4 Na3 Rhh4 Nc6 Qa6 Bd7 Qac8 Be8 Kd5 Bc5 Rc4 e4 Ra6 e3 Ra8 Nd4 Nde4 e2 Raa6 Qh1 Ke5 e1Q Ra8 Rg6 Raa6 Kf8 f7 Qd2 Ra8 Kg7 f8B+ Kf7 f6 Nc6+ Kf5 Nb5 Ba3 Bb2 Bb4 Na3 Bg7 Re1 Rd1 a1R Na2 Rc1 Ra6 Rcc3 Rd8 Bf8 Ra1 Rd3 Rdd6 Be7 Ra8 Kg8 Ra6 Be5 Ra8 Rh6 Ra6 Rd5 f7+ Kh7 f8Q Bg6+ Kg4 Bb2 Qf5 Bbf6 Ra8 Bf8 Ra6 Kg8 Ra8 Kf7 Ra6 Rh8 Ra8 Be7 Ra6 Bh7 Kh5 Reb1 Kh6 Re8 Ba5 Rb6 Bb4 Bg6 Ra8 Rb3 Ra6 Re5 Ra8 Rd8 Ra6 Bh5 Kh7 Rd7 Kh8 Bg6 Rd3 Rdd5 Ra8 Rdb5 Rdd6 Rbd5 Nac3 Nb1 R1a6 Na3 Na2 Na5 Nc5 Rdd3 Bh3 Qb7 Bg2 Nc6 Ne4 Rdd5
k7/N1BB1qN1/3rnRR1/1brpNRNr/K2nNn1b/8/B7/Qq2QnN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 h4 d5 b4 Kd7 c4 Kc7 Kc2 Kb7 Kb3 g5 f4 e5 b6 d3 b5 g4 f6 e4 f5 d2 h6 e3 c5 e2 f7 e1Q f6 g3 h5 g2 h7 Qe3+ Ka4 Bf5 c6+ Kc8 b7+ Kc7 b6+ Kd6 c7 Kc6 c8B Ba3 f8N Ra6 f7 Bd3 h6 Qee8 Qe1 d1R Ne6 Nf6 f8R Qf7 Rh5 Ne4 Bf4 Nd7 Ng7 Rc1 Nc3 Be7 Rf5 Nd2 Bc7 Bh4 Ne4 Rc5 b8Q Qdf6 b7 Qb2 Qa7 Qb1 Ra3 Be2 Rg3 Bc4 Be2 Nf1 Bd1 Be2 Bb3 Bd3 Ba2 Bb5+ Ka3 a4 Rg6+ Nf6 Be6 Nh5 Rff6 Rb6 Qaa5 Nf4 b8N+ Kb7 Nc6 Ra6 Bd7 Ne6 Na7 Rd6 Qac3 Bg3 Qa1 Bh4 Nh3 g1N Rf5 Qg8 R8f6 Ne2 Ng1 Ka8 Ng5 Qc2 Ne4 Qf7 Kb4 a3 Ka5 Rb8 h8N N2f4 h7 Qc1 Kb4 Qb1+ Ka5 Qe7 Nf7 Rh8 Nfg5 Qf7 Bb3 a2 Bc4 Rf8 h8N Rc8 Qac3 a1N Ba2 Nc2 Qa1 Qe8 Nhf7 Ncd4 Ne5 Qf7 Nh5 Rh8 Ng7 Ba6+ Ka4 Rh5 Nef3 Bd3 Ne5 Bb5+
RQ3B2/2rRN1Q1/2q1Qbrb/2Qb1Q2/4pK2/BbQb3b/1nN4k/n5RB w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 b4 d5 c4 h5 g4 a5 b6 h4 b7 d3 c5 e4+ Kf4 h3 b5 d4 g6+ Kf6 g7 a4 b6 h2 c6 a3 c7 a2 Na3 d2 Nc2 d3 Ne2 Nh6 g8Q Ra5 Rg1 h1B Ned4 Nc6 b8Q Bg2 b7 Be6 c8Q Bh3 Qf3 d1B Ba3 d2 Bg2 Qb6 Bh1 Rh7 Qc3 Ne5 Nc6 Rc7 Ne7 Be2 Rad1 a1B f3 Bd5 Qge6+ Kg7 g5 Ng4 g6 Kh6 g7+ Kh5 g8R Kh4 f6 Bd3 f7 Nc4 Qa7 Nge3 b8Q Qc6 Qc5 Nb2 Qcb7 Bg7 f8Q Rb5 Qff5 Bh6+ Ke5 Ra5 f4 Rb5 Rd8 Ra5 Rd7 Rb5 Rde1 d1B Rg8 Ra5 Reg1 Rb5 Qbf8 Ra5 Qg7 Rb5 Ra8 Ra5 Ne1 B1b3 Qb8 Rb5 Nc2 Ra5 Qfg6 Rb5 f5 Ra5 Ne1 Nc2 f6 Be3 f7 Nc4+ Kf6 Bh6 f8B Bb2 Qe3 Na1 Nc2 Rb5 Qd6 Bde6 Qde5 Rd5 Qcd2 Bd4 Q6f7 Nb2 Qc3 Ra5 Kg6 Rc5 Qd5 Bf6 Qf3 Rb5 Qdd4 Rf5 Qdc5 Bed5 Qe6 Re5 Rc1 Rh5 Qff5 Kg3 Rg1+ Kh2 Qg5 Bhf1 Kf5 Bg2 Kg4 Bgf1 Q5g6 Rg5+ Kf4 Bh3 Qgf5 Rg6+
nKR1qnbb/r3B3/pQ2b3/1R2r1Nk/2b2r2/2Q2N1B/1R2RR1R/r4N1B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 c5 Ke4 e5 f4 h5 d4 h3 b4 c4 g4 h2 g5 h4 g6+ Kf6 d6 c3 Kd5 h3 d7 e4 b6 a6 g7 e3 b7 c2 b5 e2 b6 e1R Ra2 Qe7 d8N Re3 Qd3 Re6 Nf3 Re4 Ba3 c1R Qc3 Nc6 b8R Qe8 b7 Nh6 g8B Ng4 Be7+ Kg7 Kd6 Kh6 Kc7 Kh5 d5 Nce5 f6 Nd7 d6 Rc2 f7 Re6 f5 Ndf6 d7 Rf2 Re2 Nh7 f6 Re5 Nbd2 Ne3 Ne6 Bg7 d8Q Nf8 Neg5 Ra7 Qdd4 Nc4 Qb6 Bf5 Bh7 Bc8 Be4 Be6 Rc8 Rh6 Kb8 Bh8 Bg2 Rf1 Bf5 Ra1 Nf1 Ne3 Be4 Nd5 Rb2 Nc7 Bd5 Ng6 f8R Na8 f7 Rh7 Rg8 Nf8 Rg6 Rh6 Bc6 Bc4 Re6 Rf6 Rb5 Rf4 Bd5 Ref5 Re2 Re5 Bc6 Ng6 f8R Bg8 Rg1 h1B Rbb2 h2 Bh3 Be6 Rgg2 Bc4 Rf6 Nf8 Rgf2 Bg2 Rd6 h1B Rdd2 Ra2 Nh4 Be4 Nhf3 Ra1 Rh2 Bc2 Ref2 Bg8 Rde2 Bf5 Nd4 Ra3 Qba5 Nb6 Kc7 Ra8 b8R Bhd5 Rb7 Ba2 Bh1 Ra7 Kb8 Na8 R7b5 Bac4 Qb6 Bfe6 Ndf3 Ra1
R1K1B3/QQQrBNQQ/p1b3N1/5RbR/1n2rnn1/1p2N1k1/1b2r2q/Q7 w - - 0 1 illegal: No proof kernel
k2qBbN1/2r3Q1/N3n1KN/4nrb1/B4pQ1/RR3p2/qB3nbN/1Q1N2N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 f5 e4 a5 d4 g5 h4 c5 b4 Kc7 e5 Kb7 e6 a4 h6 a3 h5 c4 d6 a2 b6 c3 e7 c2 e8B Qf6 d7 Qd6 h7 Qg6 d5 Nh6 d6 Qe6 b5 Ng4 h6 Rg8 h8N Ra7 d8N+ Ka8 h7 Qf7 d7 Qg6 Ndf7 Qg7 d8N Qg6 Nh6 Bb7+ Nc6 Qf6 Nc3 Ba6 Ng6 Qe5 h8Q Nd7 Rh3 Qc5 Nge7 Rb7 Bb2 c1B Qg7 Qd6 Ne5 Nf2 Neg4 Rc7 Nh2 Nc5 Be2 Rh8 Neg8 Qd8 Qa4 Rh7 Nd1 Ne6 Bd3 Be3 Bc2 Rh8 Qe4+ Bb7 Ba4 Rh7 Rb1 a1Q Rg3 Bc6 Rh3 Qa2 b7+ Ka7 b8N Ka8 b6 g4+ Ke2 g3 Kf3 g2 Na6 Rd7 Rg3 Rd5 Qed4 Bd2 Qg4 Rc7 Qdg7 Bdb4 Rh3 Bbe7 Rg3 Bg5 Ra1 Qb1 Ra3 Qa2 b7+ Ka7 Ke2 Rb5 Rgb3 Bd5 Nh3 g1N+ Kd2 Bc6+ Kc2 Nf3 Ng1 Ne5 Kc3 Nc5 Kc2 Bg2 Kc3 Ned7 Kd4 f3 Kd5 f4 Kd4 Nf6+ Ke5 Nfd7+ Kf5 Ne6+ Kg6 Ne5+ Kh5 Rcc5 Rd3 Rd5 Bc1 Nc4 Kg6 Rbc5 Rdc3 Rc7 Rd3 Rf5 Rdc3 Kb6 b8Q+ Ka5 Qb1 Ne5+ Kh5 Bc5 Bb2 Kb6 Rcb3+ Ka7 Bf7 Ka8 Bfe8 Nf7 Kg6 Bce7 Qh5 Bf8 Qg4 Ne5+
1K1nk2n/q3NbrR/Nn2B2q/5NN1/1pqR3N/4Q3/r2Rp3/QQb3BN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 g5 Kf3 c5 Ke4 e5 d4 b5 a4 b3 h4 b2 f4 g4 h6 b4 d6 c4 Kd5 g3 h5 g2 a5 c3 f6 c2 f5 e4 a6 e3 a7 e2 h7 Bd7 h6 Be7 f7+ Kf8 Ra2 Qe8 Nd2 b1N Nh3 g1Q Nc4 Na6 Be3 c1Q Nf2 Qg4 Bh3 Bc8 d7 Qg1 Kc6 Qc2 d5 Qg5 d6 Rb8 a8N Bd8 Nc7 Qh5 Bc5 Qe7 Ne3 Nf6 Qc1 Rg8 h8N Nd5 h7 Nd2 Ng6+ Kg7 f8N Kf7 h8Q Nc4 f6 Qh7 Qb1 Qd1 Nfe6 Qg1 Bf5 Qg7 Rh7 Qg2 Nh1 Qe4 Nh4 Qf8 Bh3 Be7 d8Q Ncb6 d7 Ra8 Bg4 Qe8 Bd4 Bd6 Ng5+ Kf8 f7 Nc5 Qf6 Bf4 Qe6 Nb7 Rc2 Ra5 Na6 Ra2 Bf5 Qe7 d8R+ Qe8+ Rd7 Qh6 Bc5+ Qe7 Qha1 Rg7 Rd6 Qc4 Qe4 Be5 Rd2 Nf4 Qed3 Qe8+ Kc7 Bb2 Kb8 Nd8 Bd7 Ng6 Nef5 Nh8 Bg1 Qe7 Rd4 Bc1 Qe3 Bb7 Bc8 Bf3 Bd7 Bh5 Be6 Qe8 Nfg3 Ke7 f8N Qd7 Nfg6+ Ke8 Ne7 Bf7 Ngf5 Qa7+
r5b1/n3qBn1/r2B4/3pBn2/Nb1NK3/R1BQ2N1/1pB1RrBk/2QQ1q2 w - - 0 1 illegal: No possible last move, all moves rejected
4b1kq/2K3b1/R1rNr2p/B2R1N2/1BnN3N/QR2rp1b/q1B1N3/1N1n1Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 Kf7 b4 a5 e4 c5 d4 h6 g4 a4 b6 a3 b5 c4 b7 a2 d6 c3 d5 c2 e5 Bd7 b6 Qf6 g6+ Kg7 g5 Ne7 e6 Qc3+ Bd3 Qd4 Bd2 c1Q Rh3 Kg8 g7 Rh7 Bb4 Bc8 d7 Qdc4 d8R Qa6 d6 Qca3 d7 Nd5 e7 Q3a4 e8N Ra7 Qf1 Qd1+ Ne2 Ra8 Bc2 Qa4 Nd6 Nc6 b8N Ra6 b7 Na5 Nc6 Rb6 b8Q Qd2 Qa8 Nc4 Ncd4 Nde3 Qa7 Qb5 Qa3 Qe5 Rg3 Rh8 Rh3 Nd1 Rg3 Kh7 g8N Bg7 Ne7 Re8 Ng6 Kg8 Nh4 Ba6 g6 Bb5 Rg5 Qf6 Rb8 Qd8 Rh5 Re6 Rg5 Qf8 d8B Be8 Bc7 Rb7 Bca5 Rb6 Kg2 f3+ Kg3 Re3 Kf4 f2 Rb7 Ra6 Rb5 Rb6 Rg3 Qf6 Rd5 Qd8 Bd3 Qb2 Bc2 Re6 Rb3 Qf6 Kg3 f4+ Kg4 Qd8 Kf5 f3 Kf4 Bh8 g7 Qc8 Qg1 f1B Kf5 Re3+ Kf6 Bh3 Qf1 Rd3 Ke7 Re3+ Ne6 Qa6 Kd8 Qe5 Kc7 Qa8 N6d4 Qh2 Nd2 Qf2 Rab1 a1R R1b2 Rb1 Ra2 Rc1 Nb1 Re6 Be4 Rc3 Bc2 Rce3 Nb7 Kf7 g8N Bg7 Ne7 Qg2 Nef5 Kg8 Nbd6 Qf2 Nc1 Qd2 Nce2 Qc3 Qg2 Qb2 Ra1 Qa2 Qf1 Kf8 Neg3 Qb2 Qa2 Bb5 Nge2 Qa3 Qb2 Bd7 Qc1 Qb2 Ra4 Qa2 Qa3 Bc6 Be1 Qe8 Bac3 Qa8 Ra6 Ba4 Nb7+ Kf7 Bcd2 Qh8 Nbd6+ Kg8 Ba5 Be8 Beb4 Rc6+
1BQ1N3/b1R2B2/2R1p1Q1/2q2QR1/1p2r1nk/1R1Rq2q/1bB2n2/2RNKb1r w - - 0 1 illegal: No possible last move, all moves rejected
NN1qB3/r2BRNn1/2Nprn2/2k5/bNnRQNK1/3pq1Q1/6r1/1Q2B1b1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 a5 Kf3 e5 h4 Ke7 b4 Kd6 c4 g5 h6 d3 h7 a4 c5+ Kd5 b6 e4+ Kg4 a3 f4 a2 b7 Qf6 h5 Qd6 f6 Bg7 h6 Nc6 b8N Nd4 f7 Kc4 f8N Ra4 f5 Ne6 b5 Kb4 b6 Nd8 f6 Bb7 f7 Ba8 c6 Qe5 c7 Nc6 c8B Ra3 b7 Qa5 Rh4 Kb5 Bd2 Qb6 Ne2 Bd4 Be1 Nce7 Nc6 Kc5 b8N Nf5 Nbc3 Ra7 Qb1 Qd8 Nf4 Ng7 Ncd5 Bg1 Ndb4 e3 Bg2 d6 Bd7 e2 N8e6+ Kb6 Nc7 Kc5 f8Q Nf6+ Kf3 Rg8 h8Q Bb7 h7 g4+ Kg3 Ba6 Qe7 Bb5 Na8 Ba4 Qe4 Re8 Qg8 Re6 Bd2 e1N h8N Nf3 Be1 Nd2 Nf7 Nc4 Bh3 Na3 Rh7 Nc4 Kh4 g3 Be8 g2 Kg3 Ree7 Bhd7 Re6 Kh3 Bd4 Kg3 g1R+ Kh4 Rg2 Kh3 Ngh5 Qg3 Ng7 Rh4 Nh7 Kg4 Bf2 Qb3 Bg1 Rc1 a1Q Qb1 Qd4 Rc2 Bb5 Re2 Ba4 Qg6 Rf6 Re7 Qe3 Qe4 Re6 Qf3 Bb3 Nh3 Qf2 Kf4 Nh5+ Kf5 Bd1 Rd4 N7f6 Nf4 Ba4 Qe4 Ng7+ Kg5 Qe3 Kh4 Nd5 Kg4 Nf6+
5B2/k1n5/q1p3b1/1pb4Q/nBbR1QQ1/QNQB2Qr/3qKNn1/2R3rR w - - 0 1 illegal: No possible last move, all moves rejected
R4rb1/BK3RRR/rp2n2N/1k1NQ3/2q2RQ1/1p3NR1/B1Q4n/br4qq w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 g5 Ke4 e5 h4 c5 f4 g4 a4 c4 d4 b3 a5 g3 a6 g2 f6 Qe7 d6 Kc6 h6 Be6 d7 Ra7 d8R Bh3 h5 Bd7 f5 Qc5 d5+ Kb6 f7 Be6 h7 Qa3 f6 Bd7 d6 Bh3 Kd5 e4 d7 e3 h6 e2 Nf3 e1Q Be3+ Kb5 Qc2 g1Q Nc3+ Kb4 Re8 Bc5 d8Q Qg7 f8R Bf5 f7 Qb1 Re7 Ra8 a7 Nc6 Qd7 Bg6 Qg4 Qa6 Ra3 Bd4 Kd6 Bh5 Kc7 Nd8 Nd5+ Kb5 Bh3 Nf6 Bg2 Rb8 a8R Ba1 Ba7 Qd1 Rh4 Qh1 Bh3 Rg8 h8Q Qg5 h7 Rg6 Rd7 Qe3 Rg8 Qeg1 f8R Qa4 Rff7 Ne6+ Kd6 Rf8 Rgg7 Ng8 Rf4 Nf6 Rdf7 Rh6 Qg8 Bg6 h8N Bh7 Qh5 Rg6 Qe5 Ng4 Bf1 Nh2 Rh3 Nd4+ Kc7 Ra6 Bd3 Qb4 Rhg3 b6 Kb7 Ne6 Be4 Bf5 Rh7 c3 Qg4 Qc4 Rfg7 Qa4 Nf7 Qc4 Nh6 Bg6 Ra4 Bf7 Rf6 Bg8 Rff7 Qcf1 Bg6 Qd3 Raf4 Qc4 Qg2 c2 Bd3 c1R Bb1 Qgf1 Qc2 Qfg1 Ba2 Rb1
2rBBk2/np3q2/8/nQn3Rn/B2RRb1B/2Nb2nQ/2NQ1p2/2rK1BB1 w - - 0 1 illegal: No possible last move, all moves rejected
1bQq4/2B2Q1N/1Bn1r3/4b3/5n2/R1nNbB2/QNk1p1Rp/B2rBbBK w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 b4 Kf6 f4 a5 Kf2 c5 Kg2 e5 d4 h5 d6 c4 d7 e4 d5 a4 b6 e3 b7 c3 d6 c2 g5+ Kg7 b5 a3 g6 Kf6 g7 a2 b6 e2 Bb2+ Kf7 f6 Kg6 f7 Kf5 Na3 Ke4 f5 c1B f6 Nh6 g8Q Qe7 d8Q Nc6 b8B Ra6 b7 Bg5 d7 Bg7 f8B Bd2 f7 Kd3 Bc7 Qe8 b8B Ng4 Nh3 Nf2 Bc5 Ne4 f8N Nc3 Nh7 Be5 Qdb3 Be3 Qbf7 Rb6 Nc4 Kc2 Nf4 h3+ Kh2 h4 Bg2 Qf8 Rag1 a1B Bf3 Bb7 Qc8 Qd8 Ba7 Ra6 Bc7b6 Bb8 Rg2 Ba8 Rd1 Bb7 Kh1 h2 Bb4 Ba8 Qg4 Re8 Rd6 Re6 Nd3 Ra5 Qgg8 Rd5 Nc5 Rd2 Nd3 Bb7 Rd5 Ba8 Ra5 Rd1+ Rg1 Bb7 Ra3 Ba8 Bd6 Bb7 Bg3 Ba8 Be1 Bb7 Kg2 h1N Bc7 h3+ Kh2 Bd2 Rg2 Ng3 Bg1 Nh5 Kh1 h2 Bcb6 Be3 Bc7 Qh4 d8B Nf4 Bb6 Qg5 Bdc7 Qh4 Rg4 Qd8 Rg2 Ne4 Bg7 Be5 Ncb2 Nc3 Bf6 Na5 Bh8 Be4 Bf6 Nc6 Bh8 Bf5 Bf6 Bh3 Bg7 Rf6 Qa2 Rd6 Qgf7 Re6 Rg4 Bf1 Rg2 Nb5 Na4+ Bb2 Qd5 Bbc1 Ba1 Bb2 Qc4+ Bc3 Qd5 Bh8 Nab2 Be5 Qa2 Nc3
NrNB1Q2/B1nb1nB1/1BRRB1K1/1kq5/4Qp2/b1b1B1p1/N1R2br1/2r5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 a5 Ke4 g5 Kf5 c5 d4 f6 e4 f3 b4 f2 h4 a4 b6 a3 d6 Kc6+ d7 a2 b5+ Kb7 e5 c4 h6 c3 d5 g4 h5 c2 d6 g3 h7 Bg7 e6 Ra4 h6 Rf4+ Kg6 f5 e7 Qc7 d8R Rb4 e8N f4 d7 Nc6 Rh2 Nd4 Nd2 Qc6+ Nd6+ Ka8 b7+ Ka7 b8B+ Kb6 Ba7+ Ka5 b6 Qb5 b7 Bf6 b8Q Qe5 Qf3 Bb7 Bh3 f1R Qe4 Qd5 N2c4+ Ka6 Be3 c1B Be6 Ne2 Nb6 Qc5 Ndc8 Bc6 Na8 Nd4 Rc2 Ba3 Rac1 a1B Ne2 Nb5 Nc3 Bd4 Na2 Bac3 Qd6 Rb2 Qf8 Nf6 Bb6 Nd5 Ba7 Ndc7 Bb6 Bg7 Ba7 Rg8 h8B Bgd4+ Bg7 Nd6 h7 Nf7 h8B Ba4 Qe7 Re8 Qf8 Kb5 Bb6 Be1 Ba7 Bdc3 Bgd4 Bf2 Bhg7 Qd6 Bdb6 Qc5 Rd1 Rg1 Rd6 Rbb1 Rc6 Rg2 Qd6 Rg8 Qf8 Re1 Re8 Rc1 d8B Ka6 Rd6 Bd7 Rc6 Kb5 Re7 Be8 Rd7 Rh8 Rd4 Bd7 Rdd6 Bd4 Be7 Bb4 Qe8 Be5 Bef6 Ba3 Ne7 Ng5 Qf7 Rc8 Qf8 Rb8 Nc8 Bc3 Bd8 Nf7
1Q3N2/NrQ2bb1/BK5k/Bn1Nq1p1/1Rp5/B2NNr2/2nb1N1r/r2R1R2 w - - 0 1 illegal: No possible last move
nr3N1q/K2R1Q1R/B2Rp2n/b2p1Qnb/6BR/1r4Qn/k2r3B/1NR4R w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 c4 g5 b4 a5 h4 g4 f4 a4 h6 a3 h7 a2 c5 g3 h5 g2 b6 Ra4 f6 Ke6 f7 Bb7 c6 Bc8 h6 Bd7 b5 Bg7 f8Q Bc8 b7 Qe8 c7 Qd8 f5+ Ke5 f6 Ra8 f7 Ra7 b6 Ke6 Nf3 g1R Bf4 Rg2 Qb3 Na6 b8R Rb7 Ne5 Kd6 Ng6+ Kc5 Bh2 Bg4 c8B Bh5 Bg4 Nc7 Ra8 Rf2 Ra7 Na8 Qe8 e6 Nf8 Rb8 b7 Rb2 Qc2+ Kb4 Ra6 Be5 Rd6 Bf6 Qf2 Kb3 Qf5 Qc8 Rd7 Bd8 Qe7 Rf2 Qh4 Ba5 Qg3 Nf6 Bfe2 Ne4 Bf1 Rg8 h8R Ng5 h7 Qd8 Nc3 Re2 Rc1 a1N Nb1 Ka2 Rd6 Nb3 Rd7 Rc8 b8R Rg2 Rb6 Rb8 Rbd6 Rb6 Ng6 Qf6 Bfe2 Rgb8 f8Q Rb5 Qf7 R5b7 Rg8 Qh8 Rg7 Rb4 Nf8 Rf2 Kc2 d3+ Kc3 d2 Ba6 Nd4 Kd3 R4b5 Ke3 d1N+ Kd3 Qg8 h8R Rfb2 Rgh7 Nf2+ Ke3 Nfh3 Kd3 Rd2+ Ke3 Bg6 Rh4 Bh5 Rh7 Rf2 Kd3 Qh8 Ke3 Nc6 Kd3 Ne5+ Kd4 Rb3 Kc5 Rg2 Qc3 Rd2 Qg3 Ng6 Kc6 Ne7+ Kc5 Ng8 Kc6 Nh6 Kc5 Re8 Kc6 Bb6 Kb7 Ba5+ Ka7 Reb8
1R3BR1/R2NbbQ1/2Nbp2B/Q2pBB1k/1r2B2r/4n3/KQ4q1/1Brbn3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 g4 a5 c4 d5 Kc2 h5 Kb3 d3 f4 d2 f6 Kg6 f7 h4 b6 a4+ Ka2 h3 b4 h2 b5 a3 b7 Ra4 f5+ Kg7 c5 Rh3 c6 Ra6 c7 Re6 f6+ Kg6 b6 Qd7 Nc3 Rh8 Na4 Qd8 Qe1 d1B Qa5 Bh6 f8B Rc6 f7 Rc3 Bd3+ Bf5 c8B Rh7 Be4 Qe8 Ne2 Re3 Nc5 Qc6 Nd4 Nf6 Nd7 Na6 b8B Nc5 b7 Rb3 Be5 Rb4 b8Q Nd3 Qb7 Qe6 Nc6 Ne1 Rg1 h1R Rg2 Ne8 Rb2 Nd6 Bcf4 Nc4 Rbb1 Ra4 Qb2 Bg7 Bd2 Ne3 Bc1 R7h4 Bd2 Kh7 g6+ Kh6 g5+ Kh5 Bc1 Bf6 g7 Bg6 g8B Rf1 Bh7 Qh3 Bd2 Rb4 Bc1 Bf5 g6 Qg2 g7 Be6 g8R Bg5 Bhf5 Bf4 Ba6 Bg3 Bad3 Bf4 Bh8 Bd6 Be5 Rfh1 Bh6 Rg1 f8Q Bf7 Qg7 e6 Bd2 Rf1 Bdc3 Rf2 Bcd4 Rc2 Bb6 Rc1 Bc5 Bb8 Bf8 Bd6 Qf2 Rbc4 Rb7 Rb4 Rb1 Be7 Ra7 Bd6 Rb3 Be7 Bb1 Bd6 Ka1 a2 Kb2 a1B+ Ka2 Bb2 Qd2 Ba3 Qb2 Rbc4 Rb4 Be7 Rb5 Bad6 Rb8 Rb4
n4Nr1/QQ1nQ1p1/1R3n2/1KNBQb2/Q2R4/3Q1rp1/N1rb2q1/BR1r2k1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 b4 c5 h4 a5 d4 e5 h5 g3 d6 a4 b6 a3 h6 a2 b7 Bd7 h7 Qc7 f6 Ra4 f7 Ra3 f5 Qc8 f6 Be6+ d5 Ra7 b5 Ne7 d7 Nbc6 b8Q Nb4 d8R Nd3 b6 Nb4 b7 Ra4 Nf3 Qc6 Nd4 Rg8 h8Q Ra3 Qhh5 Nc8 Qa7 Rf3 b8Q Bf5 d6 Nd5 Bb2 Ke3 d7 Kf2 Nc3 e4 Nb3 e3 Bg2 e2 Qbb7 e1N Rb1 a1R Na2 Nd3 Rg1 Bd6 f8Q Bf4 f7 Bd2 Qe7 Nf6 f8N Qe4+ Kb5 Nb6 Re1 c4 Nc5 c3 Qda4 c2 Rb8 c1R d8Q Rc3 Red1 Ne5 Qd3 Na8 Qg5 Qe2 Qgf4 Ned7 Qfe5 Rc2 Bd4+ Re3 Bd5 Qf1 Qba6 Qg1 Rb6 Qg2 Bb2 Rf3 Q6b7 Re3 Re1 Rf3 Re4 Qh2 Rd4 Qg2 Nc1 Kg1 Bc3 Ra3 Ba1 Rf1 Na2 Rd1 Qde2 Re3 Qd3 Rf3
1rNrRr2/q1Rq4/2Q4B/2B4N/2N2bnR/1N3K1n/rpNN3p/Qb3B1k w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 d4 e5 f4 h5 a4 c5 g4 b5 a5 b3 d6 b4 a6 e4 g6+ Kf6 a7 b2 g5+ Kg7 d5 b3 d7 c4 d6 e3 Na3 b1R Nc2 h4 Nf3 c3 Nd2 b2 Kf3 Be7 f6+ Kf8 f7 Kg7 f8N h3 f5 e2 Nh7 e1Q Nf6 Qc7 d8Q Na6 d7 Qe6 Qe8 Nc5 d8N Nd3 Nb7 Qed7 Na5 Rb8 a8N Nf2 Nb6 Qa7 Nab3 Bd6 Nbc4 Bf4 Qe6 Ba6 Qc6 Nh6 Rh2 Nhg4 Nh5+ Kf8 g7+ Kf7 f6 Kg6 g8R+ Kf5 Rg7 Rhd8 g6 Rf8 Ra2 Ra1 f7 Rbd8 Ra4 Ra2 Rh7 Kg5 g7 Kh4 g8N Bb7 Rg2 h2 Ne7 Nh3 Re2 Rb8 Nc8 Rd8 Ncd4 c2 f8B Ba6 Re8 Bb5 Na3 Bd3 Nac4 Bf5 Bc5 Bg6 Nb1 Bf5 Be3 c1R N1d2 Bb1 Rb4 Rc3 Nc2 Rd3 Rb7 Rd6 Rc7 Rf6 Rhh8 Rf8 Ncd4 Bd3 Qa1 Bb1 Nc2 Bg3+ Ke4 Bd6 Bh6 Bf4 Ng7 Kg3 Rh7 Be3 Nh5+ Kf2 Rh8 Kg1 Rh7 Kh1 Rh8 Bf4 Kf3 Ra3 Ng7 Qe6 Bg5 Qd6 Rh4 Qe6 Nh5 Ra2 Bh6 Qd7
4QKQ1/5N2/1B1q3R/bbQ1qB1q/3NN1B1/n1p2B2/rkB1pqR1/4B1nr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 b5 g4 h5 d4+ Ke4 a4 e5+ d6 h4 f4 b3 d5 b4 a5 c6 f6 h3 f5 b2 g6 h2 f7 b3 f6 Bb7 a6 Nh6 g7 Bc8 g8B Bg7 f8Q Bd7 f7 Qe8 a7 Qd8 g5 Qf6 g6 Qf4 Bh3 Bc8 d7 Qf2+ Kd6 c5 Ke7 c4 d8B Bd7 d6 Na6 Qe1+ Kd4 Ra2 e4 Bg4 e3 Bd2 Nb4 Nc3 b1Q Ne4 b2 Bh7 Qd1 Qg8 b1Q f8Q Bb5 d7 Qb2 Ne2+ Kd3 Ke8 Kc2 Qc5 Bc3 g7 Nf7 Kf8 Ne5+ Bhf5 Nf3 Nd4+ Kb1 Qe2 Nc2 Be1 Qa1 Rb2+ Kc1 Ra2 Na3 Rb2 Ng1 Rd2 Rb8 a8B Ba5 Bc6 Rb7 Bb6 Ra7 d8N c3 Ba8 Qa2 Nf7 Qe6 Bd5 Qe5 Bb3 Rh3 Bc2 Ra6 Qec4 Rh8 Qe6 Kb2 Qe8 Ra8 Rd3 e2 Rg3 Rh6 Rg2 Rh3 Qh8 Qd2 g8B Qdf4 Bgh7 Ra7 Qg8 Qd6+ Qe7 Qfe5 Bf3 Rh4 B5g4 Nc4 Qc7 Bb4 Bg6 Ra2 Qc6 Na3 Qc5 Ba5 B6f5 Nh3 Rhg1 h1Q Rh2 Rh5 Rgg2 Ng1 Rh4 Rg5 Rh6 Rh5 Nh8 Qhh4 Nf7 Qg5 Nb3 Rh1 Nd4 Qd8+ Qe8 Qh5 Rh7 Qd7 Rh6 Qdd6+
q3Q1R1/R1Krr1rN/q3R1r1/nR4b1/bpBQ4/1N2B1pk/1B2RRN1/1n6 w - - 0 1 illegal: No possible last move, all moves rejected
1R1B4/bB5N/3nQQ2/2rrB1pN/1n2BB1Q/2p2qnN/1K3qbk/5BRn w - - 0 1 illegal: No possible last move
2B1b2R/R4BQ1/K1R1p3/qB6/r2Np2r/n1rrBQq1/B1B4k/n1bNN3 w - - 0 1 illegal: No possible last move, all moves rejected
QQ1B2RK/N6Q/2qp1R2/1Qpqr3/1N1N3r/3Qqbn1/q1B5/bQ1nk1B1 w - - 0 1 illegal: No proof kernel
1k3b1R/b1pQpB2/1N1N2QK/1rqNN2N/1Q5n/2Bq3r/bB1NR3/5bn1 w - - 0 1 illegal: No possible last move
1NRQ2Q1/1N2q3/5Brq/3q1prN/2R1B1b1/BNbQp2p/k1NN4/nn2K3 w - - 0 1 illegal: No proof kernel
kN4r1/q6R/Npn2nQB/n1RB2R1/b1R1K1Qb/2B2p2/nRp2R1Q/7r w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 c5 e4 Kc7 d4 f5 a4 g5 h4 b3 a5 b6 a6 b2 h6 f4 a7 Kb7 e6 c4 e7 c3 e8Q c2 h5 Ba3 e5 g4+ Ke4 g3 d6 g2 d7 Qf6 d8R Bd7 e6 Bf8 e7 Qd6 d5 Rh7 Qg6 Bb5 e8R Ne7 Ne2 g1N Na3 b1N Rc8 Bc4 Ra2 Bb3 Rc5 Qd8 d6 Qd7 Nb5 Rf7 h7 Qg4 h8Q Nec6 h6 Qh3 d7 Nd4 d8R Rf5 h7 Qh5 Rdc8 Bg8 Bg2 Bb3 Ree5 Na3 Nc7 Nd7 Rb2 Nc6 Na6 Nc4 Nd4 Ba4 Qdg4 Be7 Be3 Rf6 Rg5 Ne2 Rh2 Rb8 a8R Nc1 Bf3 Rf5 Rf2 N4a5 Qe5 Bf6 h8B Qh7 Bg7 Bd8 Bh6 Na2 Bd2 Qf7 Bc3 Be7 Rh8 Rg8 Rh7 Bd8 Rc8 Nf6+ Kd3 Qd7 Bd5 f3 Qh2 Re5 Rc4 Re1 Rc5 Rh1 Rc4 Ka7 Ke3 Nb8 Nc6+ Ka8 Kd3 Qa7 Rcc7 Nbd7 Kd4 Ne5 Ncb8+ Qb7 R7c5 Nec6+ Ke3 Qa7 Kd3 Bc7 Ke3 Bg3 Kd3 Bh4 Ke3 Ne8 Ke4 Nf6+
NrK1Q1Br/5Q2/3pQ1N1/R2Q3r/nn1NN3/1Q2q1b1/BR3Nn1/4r1k1 w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 a5 a4 h5 gxh5 c5 b4 c4 bxa5 b4 a6 c3 dxc3 Ra7 c4 Ra8 c5 Bb7 Bd2 Bc6 Bg5 Bb5 axb5 Nc6 b6 Nb8 Bf4 Nc6 Bb8 Nxb8 Kd2 Kf7 Ke3 Kf6 Kd4 Kg5 Kd5 Kf4 h4 e5 c4 g5 c6 b3 c5 g4 f6 b2 b7 d6 Ke6 e4 c7 e3 c8Q e2 c6 e1N c7 g3 f7 g2 a7 Rh7 h6 Nc2 h5 Ne7 Ra5 Ne1 Bc4 Rg7 h7 Rg4 h8N Nf5 h6 Ne3 h7 Nf1 Nh3+ Ke4 f4 Ke3 f5 g1R f6 Nd7 b8Q Rd4 Nf2 Rgg4 Ba2 Ne5 Nd2 b1R Ng6 Nc4 h8Q Bg7 f8Q Rb6 f7 Nd3 Rh2 Nb4 Nde4 Qg5 Kd7 Nb2 Qh7 Bf6 Qfe8 Rd5 f8N Na4 Ne6 Rg1 Qhf7 Be5 Nd4 Bg3 Qbb7 Re5 Qbd5 Rbb8 Qee6 Qf4 Qce8 Rh5 c8B Qf3 Rg2 Qe2 Q1b3+ Qd3 Nf3 Ke2 Bb7 Ne3 Nd4+ Kf1 Ba6 Qe2 Bc4 Rgh1 Rh2 Ng2 Kc7 Kg1 Kd7 Rb5 Kc7 Rab8 a8N Qe3 Kd7 R8b6 Kc8 Rh8 Qc6 Rbh5 Qcd5 Ne1 Nd1 Rb5 Rb2 Ng2 Ndf2 Rb8+ Kd7 R1h4 Qf3 Bf4 Qc6 Qd2 Qf6 Rh1 Bg8 Bg3 Qcd5 Qe3 Qfe6 Kh2 Qff7 Re1 Kc7 Kg1 Kd7 Rb6 Kc8 Rb8+
bn4BK/1N1nN1RR/1Q1Q1RQ1/4Q1b1/1rnQR1p1/5nRB/3b2q1/2r2k2 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 Kg4 Ke5 h4 Ke4 d4 Ke3 h5 Kf2 b4 e5 d6 c5 b6 a5 b5 e4 b7 a4 d5 a3 b6 c4 h6 e3 Kh5 g4 d7 e2 f6 e1N f7 a2 d6 c3 h7 c2 Rh3 c1B Qd4+ Be3 Ne2 Ng2 Nd2 Na6 b8R Qf6 d8Q Nh4 b7 Bf5 d7 Bc5 f8R Nh6 g8Q Qe5 g7 Qd6 Rf6 Qc6 Rg3 Qg2 Re1 a1N Qb6 Nb3 d8Q Na5 Nc3 Ba3 Nde4+ Kg1 Q8d6 Bf2 Nd5 Nf7 Ne7 Nc4 Nc5 Nf3 Re4 N7e5 Kh6 Nd7 Qf7 Bg6 g8B Bb4 Kg7 Bd2 Rc8 Bfe3 b8Q Ra7 Rc7 Rb7 Q6e5 Bf5 Qg6 Kf2 Qbd6 Rb4 Qbb6 Nab8 Nb7 Ke1 Be2 Bg5 Bf1+ Qe2 Bg2 Be6 Bh3 Bd5 Be6 Re8 h8R Rc8 Bg8 Bc6 Rh7 Bd5 Rg2 Kf1 Rg3+ Qg2 Kh8 Bh4 Na5 Ba8 Nb7 Bhg5 Nf5 Nc5 Rcg7 Ncd7 Ne7 Na3 Qf7 Rc1 Qg6 Nc4
Nn2RN2/K3qpN1/1bRNn3/bq1R3b/3N1r1Q/1r3BR1/3R1b1Q/3B1k2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 Nh6 c4 Ke7 cxd5 Ke8 Ba3 Qf6 axb5 Qd6 b6 Ng8 b5 Qd8 Bb4 axb4 Kf2 Kd7 Ke3 c5 d4 g5 h4 b3 h6 b2 d6 Ke6 d7 Kd5 h7 Kc4 h5 g4 h6 g3 b7 g2 b6 Ra3+ Nc3 b1Q e6 Bg7 e7 Qc7 e8N Qg6 d8R Qf6 d5 Qh4 d6 Bf8 d7 Ra8 Ra6 Ne7 Qd6 Nec6 Ne4 Na7 Qh2 Qh3+ Nf3 Bg7 N4d6+ Kc3 Rg1 Qh4 Nd4 Rg8 h8R c4 h7 Bf6 Ng7 Nbc6 b8N Na5 b7 Be5 Rc6 Bg3 Na6 Qh5 b8N Qb5 Qh4 Qcb7 Nc7 Nb3 Ke4 Nc5+ Kd5 Kd2 e4 Ke1 e5 c3 e6 c2 e7 c1B e8B Bd2 Be2+ Kf2 Bd1 Ba5 Qh2 Rf8 Rg8 Be5 h8Q Bf4 Re1 Bg3 Re2+ Kf1 Rd2 g1B Q8h4 B1f2 Bf3 Qb4 Bd1 Q7b5 Bf3 Bb7 Rc8 Bf4 d8R Qa3 Nd7 Ne6+ Nc5 Rb8 Na8 Be5 Bd7 Re8 Bd1 Re7 Rde8 Qe3 Rcd8 Qg5 Bc8 Rc7 Bf3 Qe7 Bd1 Ba6 Bb7 Rcc8 N6f5 Bec7 Nd6 Qe2 Nd7 Qb5+ Rc5 Nc6 Nf8 Qa4 Rcc2 Be2 Rc3 Bh5 Rcc2 Ng5 Kc5 Qb3 Rc4 Qd3 Kb5 Ne6 Ka6 Qb1 N6b5 Qf5 Rd5 Qe5 Nd6 Rd8 Bc8 Rb3 Bb7 Nb8+ Ka7 Qe2 Rc6 Qb5 Ngf5 Rf3 Rg3 Rf4 Ng7 Rc8 Ndf5 Rd8 Re5 Rd5 Nd6 Rc5 Rd5 Rc3 Bc8 Rb3 Bd7 Nd8 B7g4 Ne6 Bgf3 Bcb6+
b1q5/r1QR4/2p2qB1/1N1RNRN1/R1q3QR/1kB1r3/3bNb2/Kr4nN w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 b4 Kd7 d4 Kd6 Kd2 h5 Kc3 e5 Kb2 a5 b6 c6 f6 h4 f7 f3 g7 h3 g6 h2 b7 e4 b8Q+ Qc7 b5 f2 b6 e3 b7 e2 Ra4 e1B Ka1 Rh5 Bb2 Nf6 g8N Rh7 g7 Rh8 Ne2 Nd7 Nbc3 Ra7 Ne7 Nc5 g8N Bg4 Nf6 Bd2 Nh7 Ne4 Ng5 Ng3 Bg2 f1R Be4 Rf3 Bg6 Re3 Qg1 Bg7 f8R Bc8 Rf5 Bh6 Qg2 Be1 Qh3 Bf2 Qg4 Re8 Rc1 h1Q Nb5+ Kd7 d6 Qd5 Rh1 Qc4 d5 Rg8 Ra3 a4 Bc3 Qd8 Ra2 a3 Rh4 Rf8 Rb2 a2 Rb4 Rf6 Ra4 Rf7 Nf4 Ne2 Qc7+ Ke8 b8N Ng1 Nd7 Bb7 Ne2 Qc8 Ne5 Ba8 d7+ Kf8 d8R+ Kg7 Kb2 a1Q+ Kc2 Rf6 d6 Qf1 d7 Rd6 Nc1 Rd2+ Kb1 Rb2+ Ka1 Re4 Rf4 Re3 Nf5+ Kf6 Ng3+ Ke7 Ngf3 Bg5 Rf5 Ke6 Nh1 Bf4 Ng5+ Kd5 Bd4 Reb3 Bc3 Bd2 Bb4 Re3 Bc3 Qfd3 Ne2 Qdd4 Re8 Kc5 d8R Qd6 Re7 Qf6 Ra6 Qb8 Red7 Qc8 Bd4+ Kb4 Ra4+ Kb3 Bc3 Qh8 Rd5 Qf6 R8d7 Rb1+
1qN1q2q/p1r3R1/b4R2/2n1B2Q/1br2N2/kN2RN2/5rR1/rB1KN1QR w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 d4 Kd7 b4 Kd6 f6 c5 f7 h5 g7 e5 g6 f3 b6 e4 b5 e3 b7 e2 b8R c4 b6 c3 b7 c2 Bb2 c1Q Na3 h4 Nc2 h3 Ra2 Nf6 g8R h2 g7 Be7 f8R Ng4 Rf6+ Kc7 d6+ Kb6 d5 Kc5 d7 Rh7 d6 Qe3 Be5 Qc7 d8N Bf5 d7 Rh4 Ne6+ Kb5 d8N Bg6 Nf4 Nf2 Nc6 Ne4 Na5 Nc5 Nb3 Bd3 Rbe8 Rc8 b8N Qd8 Bg2 Rc7 Nd7 Qb8 Nb6 Qe4 Nc8 f2+ Kd2 e1R Qh5 f1R Nf3 Ra1 Nce1 Kb4 Bh3 Bc4 Bf5 Ba6 Rb2 Qea8 Bb1 Rf2+ Kd1 Ka3 Re2 Bf8 Re3 Qc6 Re7 Qe8 Rd7 Rb2 Rd2 Rg4 Rg2 Rf2 Rh8 Rh4 g8Q Bd6 Rhg1 h1Q Rh7 Qh2 Rhg7 Be7 Rh1 Rg4 Ne6 Rc4 Nf4 Qh4 Qgf7 Bf8 Qg4 Qh8 Qfh5 Nd3 Qgg6 Bb4 Qg3 Nc5 Qgh2 Qh6 Qg1 Qhh8
1R5Q/1b5Q/3QR1B1/nNR1n1k1/q3BRq1/bp1N2br/1p3QR1/rQ1K4 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 h5 g4 c5 gxh5 f5 exf5 d4 Ba3 d3 Bb4 cxb4 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kf7 h4 Kf6 d4 b5 a4 e5 d6 g5 d7 e4 a6 g4 a7 b3 h6 b2 h5 b4 d5 g3 d6 e3 h7 g2 h6 e2 a5 b3 a6 Qb6 d8R Bg7 d7 Qd4 Nc3 Qc4 Ra5 Bf8 Nb5 Qc2 Re8 Qc7 d8Q+ Be7 Nh3 g1B Rh2 Bb7 Nf2 Bh1 Q8d6+ Kf7 f6 Kg6 f7+ Bf6 f8Q Qb7 f5+ Kg5 Rg2+ Kh5 Qb1 Qc6 Nd3 Qd5 Re6 Be5 f6 Qc6 f7 Nf6 Kd2 Rg8 h8Q Rg3 h7 Rh3 Qhg8 Ng4 h8Q+ Nh6 Qgg7 Bc5 Qgh7 Ba3 Ke1 Qe8 Kd2 Nc6 Ke1 Rb8 a8B Bg3+ Kd2 Kg4 a7 Kg5 Bb7 Rc8 a8R Ng4 Rb8 Nge5 Ba8 Nd4 Be4 Rc1 Ra4 Qd7 Rc4 Ndc6 Rc5 Na5 Qfh6+ Kg4 Qe3 Qa7 Qed4 Kg5 f8R Qg7 Qf2 Re1 Qc2 Ra1 Qb1 Qg6 Rf4 Qh5 Bg6 Qg4 Rg1 Bf3 Bg2 Bb7 B2e4 Bh2 Rg2 Bg3 Ke3 e1Q+ Qe2 Qd1 Qf2 Qh1 Kd2 Qf1 Ne1 Qc4 Nd3 Qa4 Ke1 Qh4 Kd1 Qg4+
2B4r/B3r1B1/bBN3N1/3R1b1q/KN2BR2/Q1bQNN2/3rqpp1/6nk w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 b4 Kd7 d4 Kd6 Kd2 h5 Kc2 a5 Kb3 c5 e4 g3 g6 f3 f6 h4 b6 h3 g7 h2 b5 f2 e5+ Kd7 d6 Ke6 b7 Kd5 b8B Ke4 e6 c4+ Ka4 c3 d7 c2 b6 Bb7 d5 Rh3 f7 Qh4 d8N Be7 f8Q Bc5 d6 Ba6 e7 Be3 e8B Qh7 d7 Rh6 b7 Ra7 Na3 Bd4 Bb2 c1Q Nc2 Bc3 Qa3 Qd2 Nc6 Nf6 d8B Nd5 g8N Qe2 Nge7 Nf4 Bb6 Nh3 Nf3 Ng1 N6b4 Rd6 Rb1 Rd2 Ne3 Qh5 Bd7 Ra8 B8a7 Rh8 b8N Kf4 Bg2 Ke4 Kb3 a4+ Ka2 Kf4 Bc8 Ke4 N8c6 Kf4 Qab3 a3 Qf1 Ke4 Rd1 Kf4 Qa4 Ke4 Kb3 a2 Ng6 a1R Qa3 Ra2 Nge7 Rd7 Ng6 Re7 Ba1 Rc2 Rd3 Rd2 Ka4 Nh3 Rg1 h1B Nge5 Kf4 Rd5 Ke4 Qd1 Kf4 Re1 Ng1 Ng6+ Ke4 Bgh3 Bg2 Bb7 Bf1 Bhc8 Bh3 Qdb3 Bf5 Rc1 Bd4 Rc4 g2 Nf8 Kf4 Ng6+ Kg3 Qd3 Bc3 Rf4 Kh3 Ne1 Kh2 Nf3+ Kh1 Ba8 Be5 Bab7 Bc7 Bg7 Be5 Na5 Bg4 Rdd4 Be6 Be4 Bg4 Nac6 Bf5 Rd5 Bc3
3n1nBR/k2b1pqR/1NR2bQ1/3BR1N1/3NR1N1/pNn5/2Q1rb2/2q4K w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bd6 b3 Kf8 Ba3 Ke8 Bc5 Bc8 Be3 Bf8 h4 a5 g4 Bc5 h5 Ra6 Bf4 gxf4 g5 Rg6 hxg6 Bf8 Kf2 Kd7 Kg2 c5 d4 Kc7 e4 Kb7 b6 h5 e6 h4 g7 c4 g6 a4 e7 c3 e8R c2 e5 c1B b4 a3 b5 Be3 e6 Qe7 d6 Qf6 e7 Ka8 d7 Qc6+ d5 Rh7 d8R Bc1 b7+ Ka7 Qc2 Nf6 g8N Rh5 g7 Ne4 d6 Bb2 d7 Rh6 Nd2 Kb6 Nh3 Qd5 Bc4 Bf6 Ng5 Nc6 b8N Ka7 b6+ Ka8 b7+ Ka7 Nb3 Qd4 Rac1 Nc5 Bd5 f3+ Kh2 Rh8 Nh6 h3 g8B f2 Ng4 f1Q Qg6 Ne6 Rc5 Ne5 Rc6 Qb2+ Qc2 Qf4+ Kg1 Ng6 Rh2 Rh4 Kh1 Qfc1+ Qd1 Qcc3 Kg1 Qcc2 Rc4 Qbb1 Be4 Qa1 Nc6+ Ka6 b8N+ Kb7 Bh7 Qcc1 Rh1 h2+ Kg2 Qab1 Qc2 Ba1 Rc5 Bfg7 Rh8 Bgc3 e8R Bd4 Bg8 Qbb2 Re7 Ngf8 Rde8 Ka8 d8Q Bg1 Rc7 Qg7 Qf6 Nd8 Qg6 Bf6 Nd7 Rh3 Rf5 Re3 Bd5 Bf2 Re4 Re1 Rfe5 Re2 Ndb8 Be6 Nd7 Bf5 Rc8+ Kb7 Nb6 Bd7 Ncd4+ Ka7 Rc6 Qf4 Rf1 Qc1 Re3 h1N Reh3 Ng3 Re1 Re3 R3h7 Ne2 Kh1 Nc3 Kh2 Rd3 R1e4 Rd2 Kg2 Re2 Kh2 Qb2 Kh1 Qc1+
N1R1BN2/b1b3r1/3NBB2/2R4N/p1n2q2/knK2BQn/1n1Q2p1/1B3bN1 w - - 0 1 legal: proof: c4 b5 a4 g5 axb5 f5 f4 a5 h4 d5 cxd5 e5 fxe5 g4 Na3 Ra6 Nb1 Rg6 g3 Rg5 hxg5 f4 Rh4 fxg3 Rh2 Qf6 Rh1 Qd8 d4 Kd7 Kd2 h5 e4 c5 b4 h4 e6+ Kd6 e7 h3 e8B c4 e5+ Kc7 g6 Kb6 e6 h2 d6 g2 d5 a4 d7 g3 d6 Qc7 d8N Qd7 e7 Qf5 d7 Qe6 g7 Qg6 Kc3 Qe4 Nb7 Qf5 d8N Qf4 Be2 Qh6 Nd2 Nd7 Ne4 Qh4 Nbd6 Rh7 Nf6 Qg5 Ne6 Ba6 Nh5 Nc5 Bb2 Nb3 Bg6 Qh6 e8B Qf4 Nc7 Nf6 g8B Ng4 Be6 Ne5 Bb1 Rg7 Bf3 Be7 Qd2 Bd8 Nh3 g1B Na8+ Ka7 Ra2 g2 Ra1 Be3 Rc1 h1N Ng1 Nf2 Rc2 Bc7 b6+ Kb8 b7 Ka7 b8N Nh3 b5 Bd4+ Kb4 c3 Nd7 Nc4 Nf8 Bdb6 Rc1 c2 Bf6 Be3 Kc3 Bc5 Re1 c1N Re5 Nd3 Rd5 Ndb2 b6+ Kb8 b7 Ka7 Rg5 Bb5 b8Q+ Ka6 Ra2 Ba7 Rc5 Ka5 Qe1 Nd3 Rc2 Ndb2 Rc1 Rg6 Qd8 Rg4 Qg3 Rg7 Kc2 Kb4 Qd7 Ka3 Kc3 Ba6 Qd8 Bcb8 Qa5 Bb5 Rc8 Ba6 Qd5 Bb5 Qd2 Bc7 Ng6 Nb6 Kc2 Ng5 Nf8 Bf1 Re1 Bd8 Re5 Bc7 Rc5 N6c4 Kc3 Nh3
6r1/p1bK2B1/RpRR4/4r1rk/1R4NB/1bRBqQb1/QNbB4/4q2B w - - 0 1 legal: proof: h4 d5 e4 c5 c4 g5 cxd5 gxh4 b4 f5 exf5 c4 a4 Nf6 a5 Ne4 a6 b6 Ra2 Nd6 Ra1 Nb7 axb7 Na6 Qb3 Rb8 Qd1 Nc5 bxc5 Ra8 Ke2 Kf7 Kf3 h5 Ke4 e5 b8R c3 g4 c2 f4 h3 d4 h2 c6 h4 f6 Kg6 d6 h3 Kd5 e4 d7 e3 Ke6 e2 f7 e1R+ Qe2 Rd1 d5 Rh7 g5 Qc7 f5+ Kg7 d6 Rd3 g6 Rh6 f6+ Kh8 g7+ Kh7 g8B+ Kg6 Na3 Rb3 Bd2 c1B Nc4 Bb2 Ra6 Rh7 Nf3 Qb7 c7 Be7 f8Q Ba3 f7 Bb4 Nb2 Re3+ Ne5+ Kg5 Qf3 Rg7 Bd3 Ba3 Rb1 h1B Qe2 Be4 Ng4 h2 Bh7 Bf3+ Bhe4 h1Q Qg8 Qg2 f8B Bd8 Qf1 Bd1 Qf3 Qe2 Qgf7 Rh7 Bg7 Rh5 Qg8 Qc6 Qgf7 Bb7 c8R Qc1 Rc3 Qe1 Rbc8 Bc2 R8c6 Bc7 d8R Rb8 d7 Bad6 Qg8 Bg3 Ke7 Kh4 Qa2 Rg5 Nd1 Bge5 Rb4 Bg3 Nb2 Kh5 Qe2 Bc8 Qf1 Qf2 Be1 Qa1 Bd2 Qae1 Ke6 Bge5 Bh1 Re4 Qe2 Qe3 Qf3 Ra8 Rf8 Rb8 Rf6 Ra8 Ke7 Bg3+ Rfe6 Ree5 d8B Rg6 Ke8 Rb8 Bh4 Rgg5 R6c4 Bb7+ Kd7 Bd5 Rcc6 Bdb3 Red6 Rg8
k6B/B1q2nn1/NRR3BN/5N2/5Qr1/3bNrnN/2r1BK1Q/qBbr2r1 w - - 0 1 illegal: No possible last move
3N1r2/1K6/n1n1B2R/Q1Q1N1Bq/1bR1N1Bb/3brb2/1q3N1r/1B1bk1NB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 d4 h5 g4 c5 d6 a5 d7 f6 g6 a4 d5 a3 d6 a2 g5 f3 b6 f2 g7 h4 b7 h3 g6 h2 b5 Ra6 b6 Rh6 Qc2+ Kb4 Kd5 c4 e4 f5 e5 c3 e6 f4 e7 f3 e8B Qh4 d8Q Nc6 b8N Bf5 d7 Na7 b7 Rf6 Nd2 Nc6 Bd3 f1B Ne4 f2 Bg5 Qh5 Rc1 a1Q Be2 Bc5 Bg4 Re6 Qb6+ Bb5 d8N f1R Nf2 Qb2 Nd7 Re3 b8N Bd3 Nf6 Rh7 Qa6 Ba4 Nbd7 Nb8 Ne5 Rh6 Qa8 Na6 Bc6 Bf8 N6e4 Ne7+ Kd6 Bb3 Bb7 Nc6+ Kd7 Bd6 Kc8 Ba4 g8B Be7 Nd1 Rf8 g7 Rh7 Qf2 c2 Ba2 Bb3 g8B Bd6 Ra1 c1B Bb1 Be7 Qa7 Bd2 B8e6 Be1 Qf5 Bh4 Ndf2 Bd1 Ra3 Rh6 Rc3 Bc5 Rc4+ Kb3 Ngh3 Bb4 Qc5 Rh7 Ba8 Rh6 Kb7 Rhh8 Rf1 h1B Rg1 Bhf3 Rh1 Qc2 Rh2 Kb2 Ng1 Kc1 Nf6 Kd2 N6e4+ Ke1 Qa5 Rfg8 Qf8 Qb2 Qfc5 Rf8 Rh3 Bg3 Rh4 Qg6 Rh5 Bh4 Rh6 Qh5 Rc2 Qg6 Kc8 Bfe2 Ng3 Ncb8 Bh1 Bf3 Rh5 Nc6 Nge4 Bg3 Kb7 Qe8 Rh7 Qg6 Rc4 Qe8 Re7 Rh2 Rh7 Qh5 Rh6 Bh4
1n3NR1/2b2Q2/r1Q2rbq/BBb1B3/q2Q4/1rQQ1n2/1RK1BB2/k1Nb2n1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 Kf6 c4 Ke5 f4+ Ke4 b4 e5 f6 g5 h6 a5 h7 d5 h5 g4 b6 g3 b7 g2 b5 d3 h6 Kd4 c5 e4 c6 a4 b6 a3 c7 a2 f5 Kc4 f7 d4 f6 Ra5 Nc3 Ra6 Be2 Ra3 Nh3 g1R Rb1 a1Q Na2 Rg2 Rb2 Ra6 Rg1 Ne7 Nf4 Rg3 Ng6 Bf5 c8B Nec6 Bd7 Bc5 f8Q Ne5 f7 Qf6 Qd6 Rf8 h8Q Rh3 Qf1 e3+ Kd1 Nf3 h7 Qg7 Qc6 Qh6 Qe5 Rg3 h8Q Be4 Rc2+ Kb3 Rb2+ Ka3 Qec7 d2 Qc8 Rg8 Nf8 R8g6 Qd8 Rh3 Qdc7 Rd6 Rg8 Rf6 Qg3 Bg6 Qgf2 Rf5 Kc2 d1N Bd2 Nc3 Nc1 Qa2 Qh4 Rf6+ Qhe4 Rg3 Be1 Qa1 Bf2 Rh3 Qe1 Rg3 Qd3 Rh3 Bf1 e2 Qd1 e1B Be2 Bd2 Qe1 Bf4 Be8 Nd7 b8B Bc7 b7 Rg3 Ba7 Nb8 Bb6 Qa2 Ba5 Qc4 Nh7 Qb4 f8Q Qa4+ Nb3 Rh3 Qf7 Rg3 Nf8 Rh3 Bd1 Ne2 Qc3 Neg1 Be2 Nd7 b8B Rg3 Qf5 d3+ Kd1 d2 Kc2 Rh3 Qfd3 Rg3 Rb1 Ka2 Qhg7 Bd8 Be5 Nb8 Qh8 Bc7 Qhg7 Bf5 Qg4 Rh3 Qgd4 Bg6 Rb2+ Ka3 Qb6 Ra8 Qf5 Ng5 B8b5 Ra6 Qcc4 Re3 Qc6 N5f3 Kb1 Rd3 Nc1 Rb3 Qcc3 Qf4 Nd3 Qe3 Kc2 Qh6 Rb1 Ka2 Rb2+ Ka1 Nc1 Qh3 Qfe4 Qh6 Qed3 d1B+
2Q5/3BB3/1BR2r1N/Q1r1nb1R/4q1Q1/B1nbknb1/1rQq4/1QB1n1NK w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 Kd4 b4 e5 g5 a5 f6 h5 d6 c5 g6 a4 f7 a3 d7 a2 g7 c4 f5 c3 f6 e4 b6 c2 b7 e3 b5 e2 b6 Qc7 d8B Qc3 Na3 Nc6 b8Q Bd6 f8B Ne5 f7 Ne7 g8Q Rh6 b7 Rf6 Nc4 Bf5 Ne3 Nd5 Qc8 Rb8 Bfe7 e1N+ Kh2 h3 f8B h4 Ng4 Ke4 d4 Qd2+ Bg2+ Kf4 Bb6 Nc3 Nh6 Ke3 Qgg4 Bd3 Rb1 a1N Rb2 Nb3 d5+ Nd4 Rb1 Ra8 b8Q Ra2 Qbb7 Bc7 d6 Rb2 d7 Bd6 d8Q Bf5 Ne2 Bc7 Kg1 Bd6 Bc6 h2+ Kf1 h3 Ng1 Bb8 Bd7 Bd6 Ra1 Bb8 Ra5 Bc7 Rc5 Ndf3 Qc6 Ng6 Ba5 Nd4 Qb6 Rb3 Qbb7 Bg3 Rc6 Nb1 Bd6 Ne5 Bb2 c1R Bda3 Rc5 Be7 Nc3 Qb5 Rb4 Qba4 Rb3 Qb1 Rb8 Bc1 Rb2 Nf3 Nf7 Qac2 Ne5 Rg1 h1B Rg2 h2 Ng1 Nde2 Rf2 Bd3 Rf5 Bhe4 Qb6 h1Q Qb4 Bf4 Rh5 Bf5 Bb6 Bg3 Qa5 Qd5 Nf3 Nd4+ Kg1 Qe4 Kh1 Qf4 Ng1 Ndf3 Qca6 Qc4 Qc8 Qe4
3r1n2/K1Q1bn2/N3rN1k/1N1RbqR1/2R1N2q/r2nB3/QR2n2N/1B1bR3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kg7 Kd4 a5 Kc5 e5+ d6 h5 f4 a4 d4 c6 b4 a3 g4 h3 b6 e4 b7 a2 b5 e3 g5 h2 g6 h4 f6+ Kh6 f5 h3 b6 Bg7 f7 Qg5 f8R e2 d5 e1N f6 Ra6 d7 Nc2 d8R Ne7 f7 Bc3 g7 Ra8 g8N+ Kg6 Na3 Be6 Be3 Bd7 Qe2 Bf6 Rc1 a1B Nb5 Ra3 Nf3 Nd4 Rc4 Bg4 Qa2 Nc8 Bd3+ Qf5 Re1 h1R Nh2 Ne2 Bb1 Bae5 d6 Be7 Nf6 Bh5 Ne4 Nd7+ Kb4 Kh7 Rg8 Nf8 Rg5 Kh6 Kc5 Rg1 b8N Rf1 Nf3 h2 b7 h1Q Na6 Qh4 Nh2 Rg8 b8Q Rg6 Rd7 Re6 Rb7 Rf3 Qc7 Rd3 Kb4 c5+ Ka5 Rd4 d7 Nd6 Kb6 Rd3 Rc3 c4 d8R Rh3 Rcc1 c3 Ka7 c2 Rd7 Ng1 Rd8 Bd1 Rbb8 Ne2 Rb7 Nh7 f8N Nf7 Nd7 Nf8 Ndf6 Ra3 Rd2 Rd3 Rb6 Rd8 Rd5 Rf3 Bf2 Ra3 Be3 Nf4 Rc6 Nd3 Rc4 Bf3 Rcd1 c1N Rd2 Bd1 Rb2 Ne2
1k1bB2R/2b3NB/3bn3/RNnK3b/5r1r/N1QNqB2/1q3B1B/N1nQ3r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 c5 g4 Kc7 d4 a5 b4 f6 d6+ Kb7 d5 f3 g6 c4 g5 h4 d7 a4 d6 h3 b6 c3 g7 f2 b5 c2 g6 f5+ Kd5 h2 e4 a3 e5 f4 e6 f3 e7 a2 e8B Rh7 Bg2 f1R Na3 f2 Bf3 Nh6 g8Q Rf7 g7 Ra4 Be3 c1B Qh8 Rb4 g8B Ka8 Qc3 Rh4 Ne2 Nf5 Nf4 Qg5 d8N Nd7 b7+ Kb8 Nd3 Nc5 d7 Bd6 Bh7 Qe7 Bd4 Ng7 Ne6 Rff4 Nc7 Qe3 d8N Bg4 Nde6 Rg1 Be2 f1N Bf3 Qe2 Bf2 Ng3 Qf1 Bh5 Qd1 N7f5 Ng7 Nd4 Qf1 Qb2 Qd1 Ka7 b8N Nde6 Nba6 Ne2 Nab4 Kb8 b6 Rf1 Rg1 h1Q b7 Qh3 Nbc2 Re1 Rg5 Rh1 Ncb5 Qg3 Rb1 a1B Rf5 Bd2 Rf8 Nc1 Rh8 Qa2+ Rb3 Qb2 Rb4 Be3 Ra4 Bd4 Ra7 Bf6 Ra5 Bd8 Kc6 Qb1 Kd5 Bb2 Na1 Qc2 Qb4 Bbe5 Qc3 Qb2 Nd4 Kc7 b8B+ Kb7 Ndb5 B6c7 Ba7 Bed6 Bb6 Qg1 Bg3 Kb8 Bh2 Ne4 Bf2 N4c5 Ra7 Qe1 Ra5 Qe3
Q1B2rQ1/2bKnq2/1B2NR2/r1B2QBN/k1qQ4/3Qqb2/3bbB2/3R1nq1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kc4 c5 g4 a5 b4 e5 f4 e4 d4 e3 b6 h3 Kb5 c4 g5 a4 g6 h2 g7 e2 f6 e1Q f5 a3 f7 a2 f6 c3 b7 h4 d6 h3 d5 c2 Qd4 Nh6 g8Q Qf2 Nc3 Ra7 Nge2 Nf5 Nf4 Qe1 Na4 Qc7 Nc5+ Kd8 d7 Qd1 Nh5 Ng7 Bg5 Qf3 Rd1 Nc6 b8Q c1Q Qa8 a1B Bc4 Qg4 Rhf1 h1B Bd3 h2 Bf5 Q7f4 Be6 Kc7 d8B+ Kd6 Bb6 Ne7 Qd3 Bb7 Bc8 Qce3 Ne6 Ngf5 Rf2 Bh6 f8Q Ra6 f7 Bf3 Rff1 h1Q Rf2 Ke5 d6 Be2 d7 Qhg1 d8Q Ng3 Qd7 Be4 Rf3 Nf1 Qd4+ Kf5 Kc5 Ra5+ b5 Bc3 Rf2 Bd2 Rf3 Qh4 Rf2 Qff3 Kd6 Bg7 Kd7 Be5 Q4c3 Bc7 Qcd4 Nd5 Qfc5 Qff4 Qcc2 Ne7 f8B Qff3 Ba7 Qhf4 b6 Q4g4 b7 Qff4 Qb4 Ke5 b8B Qf7 Rf6 B4f3 Bb6 Qc4 B8a7 Be4 Nc5 B4f3 Qf5+ Kd4 Qbb2+ Qcc3 Ne6+ Kc4 Qa1 Kb4 Qcd3 Qc4 Qb2+ Ka4 Qbd4 Nd5+ Be7 Qf8 Bd6 Ne7 Bg3 Qg7 Bf2 Qf7 Bc5 Rb5 Bab6+ Ra5 Qgh7 Re8 Qg8 Rf8
K1BQ1Q1q/1n2QB1k/1qN1Rbb1/rQ6/N2Q1bq1/2Bn1Rrn/3B2Bp/8 w - - 0 1 illegal: No possible last move
2brN3/b4Qnn/2q3B1/1bR4Q/1RB3p1/BB1b2R1/bR1rN2B/k1Kn1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 Ke6 e4 a5 c4 g5 b4 d5 b6 f5 b5 a4 h6 g4 h7 d3 b7 d4 c5 a3 c6 a2 c7 f4 b6 f3 h5 f2 h6 Ra6 Rh3 Bd6 Qb3+ Kd7 e6+ Kc6 e7 Kc5 e8B Nd7 b8B Ngf6 e5 Nh5 e6 Nf8 e7 Qd7 b7 Qc6 Ne2 Ng7 Qf7 Kb4 Na3 Bc5 Rg3 Ba7 Nc4 Kb3 Ba3 Rg8 h8R Nh7 Rd1 a1N Kc1 Ka2 Bd7 Rf8 e8B Nc2 Nd6+ Ka1 Be6 Ne3+ Bc4 Ra4 Rd2 Ra6 Rb2 Nd1 Bg2 f1B Bd5 Ra5 Be6 Rd5 Rb4 Bd7 c8R Rg8 Bc7 Rf8 b8R d2+ Kc2 Rg8 R8b5 Rf8 Rcb8 Bc8 Rc5 Rg8 Rb2 Rf8 R8b4 Rg8 B8d7 Re8 Rf8 Rd8 Ne8 Rd6 Bf5 Rd5 Bg6 Rd6 Nc1 Rd5 Bb3 Bb5 Be6 R5d7 Ne2 Rd6 Bbc4 d3+ Kb3 Nf2 Kc3 d1B Kd2 Bb3 Kc1 Ba2 Bb3 Nd1 Bec4 Ng5 h7 d2+ Kc2 Rd5 h8Q Nh7 Be5 Nf2 Bc7 d1B+ Kc1 Bc2 Bf4 Bd3 Bd6 Nf6 Qh5 Nd1 Rg1 Bb6 Bh2 Nh7 Rg3 R5d7 Qe7 Ba7 Rf1 Bc2 Qe6 Rd2 Qf7 Bd3
RNrBB1Q1/bRrrBqQ1/3nRRr1/3b2R1/4pB2/3B1r1n/k6K/4nN2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 b4 e5 f4 h5 Kf2 c5 g4 a5 Kg2 e4 f6 c4 g5 c3 d6 Ke6 d7 Kd5 f5 a4 g6 c2 g7 a3 b6 a2 f7 Be7 f8R Nf6 g8B+ Kd6 b5 Na6 b7 Rb8 d5 Kc5 b6 Kb4 d6 Qc7 d8Q Rh7 d7 Nc5 Bf7 Ne8 f6 Nd3 Ne2 Bc5 Nd4 h3+ Kg1 h4 Qg4 Nf2 Bf4 c1R Nd2 Ka3 Nc6 h2+ Kg2 Rg7 Rg1 h1R B1c4 Rh7 Nf1 h3+ Kg3 Ra8 b8R h2 b7 Ba7 Qe7+ Kb2 d8B Be6 Qg8 Bd5 Rc8 Rc2 b8R+ Qb7 Rc1 a1N Bd3 Nh3 Rb1+ Ka2 Rb6 Qc7 R8b7 Rc1 Qe5 Rb8 Rg2+ Nc2 Bg6 Re7 f7 Rg1 Qeg7 Qd7 Bh5 Qf5 Bg6 Rd7 Bh5 h1R Bg6 Nf2 Bh5 Rh4 Bg6 Rg4+ Kh2 Ne1 Rg3 Nh3 Bh5 Rg6 Rg5 Re6 Bg6 Rg3 Bh5 Nd6 Re8 Rc5 f8B Nc4 Re7 Qf6 Be8 Rf3 Rf7 Qf5 Bfe7 Rg6 Rf8 Qe6 Rf6 Qf7 Na5 Ng2 Rbe6 Nd6 Nc6 Rc4 Rb6 Rbb7 Ra8 Ne1 Nb8 Rc8 Rb4 Rbc7 Rb1 Nc2 Rb7 Ne1
1NB2brN/2K3r1/qR1n2B1/RpB2q2/1Qb2qk1/1N2QqqN/Nn4B1/7B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 c4 a5 c3 g6+ Kf6 a6 c2 g5+ Kg7 d6 b2 Kd5 e4 d7 e3 a7 h4 Qf3 h3 Nd2 b1Q Nb3 h2 Bg2 e2 Ba3 c1Q Bc5 e1Q Ra5 Qde7 d8N Qcb2 Nc6 Qef2 Qe3 Rh3 f6+ Kh8 f7 Kg7 f5 Qf6 Nb4 Qbe1 Na2 Rh7 Nh3 Qa6 f6+ Kh8 Ke5 Rh6 g7+ Kh7 Rg1 Qa3 d5 Kg6 d6 Kh5 g6 h1Q d7 Rh8 d8N Kg4 Nc6 Be7 f8Q Kh4 f7 Nh6 g8B Qed2 g7 Be6 Bh7 Kg4 g8B Bc4 Bg6 Nf5 Rd1 Qc2 Rd6 Rh7 Rf6 Rg7 Re6 Bg5 Qd6 Qb4 f8N Bh6 Rf6 Qhe1 Be6 Qf3 Bc8 Qh4 Re6 Qa4 Qdd2 Nd6 Qb4 Qb1 Nd7 Qa3 Nd8 Qac1 Nf7 Qhg3+ Kd4 Qbf5 Nh8 Bg5 Bh1 Be7 Bg2 Bf8 Bh1 Ne8 Rb6 Nd6 Bg2 Qab7 Bh1 Na6 Bg2 Rb8 a8B Qa7 Bc6 Ra8 Nb8 Qb7 Qbc3 Nb4 Qcd2 Nd3 Qb4 Qa6 Bh1 Qff1 Bcg2 Nb2 Qe5 Bd3 Kd5+ Bc4+ Kc6 Qcf4 Qe7 Q1f3+ Kc7 Rg8 Qe8 Ra7+ Kd8 Rag7 Qe3 Be7+ Kc7 Bf8+
BBq5/2R2bb1/1B1n3n/1N2rB2/1Qrn2RK/1BR2rQ1/p1nNk3/2qR1R2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 Kd4 g6 f5 e5 a5 g5 c5 b6 h5 e6 a4 b7 a3 b5 c4 d6 h4 e7 f3 e8B c3 b6 h3 Kg3 f2 g7 a2 g6 c2 d7 h2 Qg4+ Kd5 d4 Ra4 Ne2 Kc4 d5+ Kd3 d6 Nh6 g8R Ra6 g7 Nc6 b8Q Ra3 b7 Qa5 d8R f4+ Kh4 f3 d7 Qa6 Be3 c1Q Qgg3 Rb3 Bb6 Rc3 Bh3 f1N Nd4 Rc4 Nd2 Ne3 Rf1 Nc2 Bf5+ Ke3 Qbd6 h1N b8B Nf2 Qb4 Ne4 Nb5+ Ke2 Bf7 f2 Bd5 Bb7 Rc8 N6d4 d8R Nd6 Rc7 Bc8 Re8+ Be6 Rec8 Bf7 Ba8 Qb7 Rd1 f1R Rb1 Rf3 Rf1 Qa3 Rbd1 Qc1 Bc5 Rcc3 Bb6 Rce3 Rc3 Re5 R8c7 Rh7 Rh8 Qc8 g8B Rg7 Rh7 Rg6 Rg7 Rge6 Rg5 Bg7 Rg4 Rc5 Qa3 Rc4 Qb4 Be8 Bf7 Re5 B7e6 Bf7 Bed5 Rc6 Bb3 Rc4
1N2r3/2rQb1R1/4bQnQ/2npb1qn/4B1B1/B2q4/1nRQ2KN/1k1B1B1Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 e5 Kf2 h5 b4 a5 g4 h4 b6 a4 b5 h3 f6 Ke6 c5 Kd5 b7 Ke4 c6 d6 f5 d3 b6 h2 f7 d2 g6 a3 c7 a2 g5 Rh7 g7 Qd7 g6 Ra5 f6 Ra7 Na3 Ra5 Kg2 Rh5 Nb5 Rh6 Nf3 Ne7 g8B Ra7 g7 Qf5 Bh7 Ra4 g8B Rd4 Na7 Nd7 b8Q Rc4 b7 Nc5 Qa8 Be6 c8B Ng6 Nc6 Be7 Rg1 h1N f8Q Ng3 b8Q Qg5 Nh2 Nh5+ Qg4+ Ke3 f7 e4 Ba3 d1N Qb4 Nb2 Rc1 a1B Nb8 Rc3 Qd8 Kd2 f8Q e3 Qc6 e2 Rc2+ Kd1 Qdd7 Re3 Qf6 d5 Bf7 Rc3 Qg3 e1Q Be8 Qge5 Qgh4 Q1e3 Bf7 Qd3 Qcb6 Nh8 Be4 Ng6 Qbd6 Qf5 Qdf4 Rh8 Qh6 Re8 Qh3 Nh8 Bg6 Qf4 Bgf5 Qg5+ Bg4+ Ke1 Ba6 Ng6 Qbd4 Rc4 Bb5 Rc3 Ba4 Rc4 Nf3+ Kd1 Qh1 Nb7 Qe3 Rc7 Qf2 Nc5 Nh2+ Qe2 Rd2+ Kc1 Bd1 Qa6 Rc2+ Kb1 Qd2 Qd3 Qe2 Qge3 Bgf5 Nf8 Qd2 Nc4 Bh3 Qf4 Bhf5 Qg4+ Kf2 Be5 Rg3 Qh4 Kg2 Nb2 Rg7 Qg5+ Bfg4 Ng6
4R1KN/q1r1B3/n1BNQp1b/3Qnb2/1N1N1B1b/R2N2BB/3q1nn1/3r3k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 g5 h4 a5 b4 c5 d4 f3 h6 g4 h5 c4 b6 c3 h7 g3 h6 f6 b7 c2 b5 f2 b6 a4 Nf3 g2 Nc3 g1B Bh3 f1Q Ne1 a3 Nb5+ Ke7 d6+ Kf7 Kd5 Kg6 e4 a2 d7 Bd6 Ke6 Bg3 d5 Bc7 e5 Ra4 d6 Rc4 Nd3 Rg4 Bf4 Kh5 Kf7 Kh4 e6 c1N e7 Qe2 e8B Ne7 Qe1+ Bf2 Nd4 Qd2 Qe6 Nec6 Re1 Na6 b8B Rg1 b7 Bb6 Re4 Qc7 Re3 Rhg8 h8N Rd1 h7 Rg7+ Kf8 Ba5 d8Q Ne5 d7 Qb6 Bc7 Qa7 Nf7 Bc3 h8N Be1 Nf2 Ncd3 b8N Bb2 Re4 Bc1 Nd6 Rh7 Kg8 Re7 Bh6+ Kg3 Nbc6 Kh2 Nb4 Kg1 Bf4 Rh7 Rb1 a1N Rb3 Nc2 Ra3 Ne3 Bb8 Ng2 Re2 Ndc5 Nfd3 Kh1 Qa5 Ne4 d8B Re7 Bc6 Rc7 Qad5 Bh4 Be7 Nf2 Bg3 Nd7 Qg4 Qb2 N6f5 Be3 Bed6 Bh6 Re8 Qd2 Be7 Rb7 Bbf4 Rc7 Nd6 Ne5 Qf5 Nc4 Qfe5 Bf5 Qee6 Ne5
1NB1R1n1/1R3bBk/2K1Rr1n/BBb1Q3/r1B2RqR/Q2p1r2/5q1p/b6N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 Kg7 Ke4 h5 Kd5 a5 b4 e5 f4 e4 c4 d6 g4 e3 g6 a4 c5 d3 g5 d2 b6 a3 b7 e2 b5 e1Q c6 h4 b6 h3 c7 a2 Nc3 Qde7 Qf3 d1R+ Bd2 Ra5+ Nb5 Ra7 Qa3 Rh6 f6+ Kh8 f7 Rc1 f5 Q7e3 f6 Qd1 g7+ Kh7 Nd4 Rg6 Nc6 Ra8 Bb5 Qa4 Ne2 Qe8 Ng3 Bf5 c8B Qd8 Ba5 Rc2 Rae1 a1B Re6 Nd7 b8R Ne5 b7 Be7 f8R Rc4 f7 Rf6 g6+ Kh6 Rh2 Rc3 Nh1 Qb6 Re8 Bd3 f8B Nf7 Rf2 h2 Rf4 Qf2 Rh4+ Kg5 Rf4 Bb1 Rh4 Rcf3 Rf4 Ngh6 g8B Bd3 g7 Bg6 Rh4 Bh5 Rf4 Kg6 Rh4 Ne5 Bf7+ Kh7 g8R Nd7 Bg7 Qg4 Rgf8 Ra6 Nb4 Ra7 Kc6 d5 Na6 d4 Rd6 d3 Bfc4 Rg6 Rf4 Rf6 Re6 Bf7 Ra8 Qfg3 b8Q Qf2 Qe5 Bc5 Nb8 Ra6+ Bb6 Ra4 Ba5 Rf5 Ra7 Nf6 Rc7 Ng8 Rb7 Rf6
1R5n/3n1B1k/b3q3/BrBp3N/NB2RR1q/b2bQrQ1/RB4Rp/1K3n2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 Kg7 c4 h5 Kc2 e5 g4 a5 f4 h4 b6 d6 b7 h3 b5 e4 g6 h2 c5 a4 c6 e3 f6+ Kh6 b6 e2 c7 e1Q f7 a3 f5+ Kg7 g5 a2 Qd2 Rh3 f6+ Kh8 g7+ Kh7 Qe3 Qe8 Bc4 Qe6 Bb2 Ra4 Nc3 Qd7 Nge2 Qg3 Rhe1 Ra8 Na4 Kg6 Nf4+ Kh7 g6+ Kh6 Nh5+ Qf4 Kc1 Be7 f8B d3 f7 Qe6 Bd5 Nd7 b8B Bb7 c8R Ba6 b7 Rf3 Bc7 Rb8 Ba5 d2+ Kc2 Qg5 Rc4 d1B+ Kc1 Be2 Rf4 Qh4 Kc2 Ra8 b8R Ra7 Bb3 Rb7 Bc4 Rb5 Bd5 Ne5 Bc4 Nf6 g8Q+ Kg5 g7 Kg6 Kc1 Bd3 Bd5 Nfd7 Re2 Bg5 Be7 Bf6 f8B Nf7 Re1 Nh8 Bb3 Qf5 Bf7+ Kh6 Re2 d5 Beb4 Qe6 Bfc5 Be7 Rg2 Bf8 Re8 Qeh3 Re5 Qe6 Ree4 Bd6 Qb8 Kh7 g8R Bf8 Qe5 Be7 Ra8 Bd6 Rb1 a1N Qg5 Nc2 Qg3 Bf8 Rb8 Bd6 Ra1 Be7 Ra2 Bf8 Qe2 Ne3 Qee1 Nf1 Qe3 Bd6 Bcb6 Qd8 Bd2 Ba3 Bdb4 Bc4 B6c5 Qh4 Kb1 Bd3+
2n2Q1Q/3b3r/N2rR1Q1/1pq1RBq1/R3Q3/2QN1n2/RB4pq/K1b2kbR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 f4 Kd6 a4 Kc5 d4+ Kb6 Kd2 c5 Kc2 e5 Kb2 g5 h6 e4 d6 e3 f6 e2 f5 e1B d5 g4 a5+ Ka7 h5 b5 d7 Ka6 d6 b3 f7 g3 h7 g2 h6 c4 f6 Bd2 Nh3 Be7 f8R Nc6 f7 Nb4 Qf3 Nc2 Re8 Bb7 f8Q Ra7 Qe4 Bh4 Re6 Nd4 Nf2 Nf3 Ra4 c3+ Ka1 c2 Na3 Bc6 Nd3 Ne7 Bb2 Bc1 Qg7 Qb6 d8R Nc8 d7 Bf2 Qgg6 Qc5 Rde8 Bg1 d8Q Rd7 Qe7 Rd4 Qf8 Rd6 Re5 Bd7 R8e6 Ka7 a6 Kb6 a7 Nh2 a8R Nf3 Bc3 b2+ Ka2 Rg8 h8Q Rg7 h7 Rf7 Qhf6 Re7 h8Q Rh7 Kb3 b1Q+ Bb2 Bh6 R8a7 c1Q Nc2 Qg5 Ncb4 Qe1 Ka2 Qeh4 Na6 Qh2 Qe1 Kc6 Ka1 Kb6 Be2 Kc6 Bd1 Kb6 Bc2 Kc6 Re3 Kd5 Ra2 Kc4 R3e5 Qf5 Bb1 Bc1 Qf6g7 Qg5 Qee4+ Rd4 Ba3 Kc3 Bb2+ Kd2 Ra4 Rd6 Ra8 Be8 Qc7 Bd7 Qa5+ Kd1 Qc3 Ne7 Ra7 Nc8 Ra2 Qhh6 Qef5 Qd2 Nc7 Nd4 Nf4 Nf3 R7a4 Qh2 Na6 Qde3 Be4 Qd2 Nd3 Ke2 Qf4 Kf1 Bf5 Qde3 Qe4 Qg5
1k1BnBN1/Rb3K1R/p2rrB2/1B4rB/3bR3/n7/1rR1R1pQ/2r1q1NQ w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 f5 d4 g5 e4 g4 h4 g3 b4 c4 d6+ Kb7 d7 g2 Ke6 f3 e5 c3 h6 f2 d5 c2 b6 f4 b5 f3 h7 Ne7 h5 Nbc6 d6 Nd4+ Kf7 Nb3 e6 Qc7 d8R Rb8 d7 Qe5 h6 Qc3 Re8 Qe5 d8B Bg7 Ba3 c1R Nc3 Bd7 Rh4 Qd5 Re4 Rg8 h8B Qd3 h7 Be5 Bf6 Qe3 h8R Na5 Nd5 Nf5 e7 Qe1 Rh7 Ng7 Ra2 a6 Rc2 Ka8 b7+ Ka7 Be2 f1R Bb4 f2 Bh5 Bd4 Ree2 Ra8 b8R Nc4 Rc8 Bc6 b6+ Kb7 Rc7+ Kb8 Ra7 Na3 b7 Rb1 Bc5 Rb2 Qa1 Qb4 Qc1 Rd1 Qb1 Rd3 Qe1 f1R Qh4 Rff3 Qh1 Rf1 Rf2 Re3 Rfd2 Rc1 Re2 Qe1 Bb4 Bd7 Bb6+ Bc8 Rd8 Re5 e8B Re3 Ne7 Re4 B6c5 Kc7 Bb5 Bg4 Re8 Rd8 Bc3 Bc8 Bd6+ Kb6 b8Q+ Bb7 Bdb4 Re3 Qbh2 Re5 Bc5+ Kc7 Ba5+ Kb8 Bcb4 Ne6 Bb6 Rg5 Ng8 Nc7 Bf8 Re3 Re5 Ne8 Ba5 Rd6 Bad8 Rc3 Re7 Rcc5 R7e3 Rce5 Re4 Ree6
1R2r1R1/2b1Rb1B/1Rp1Q3/b3Nn1n/NnrN2b1/3K2B1/NR3q1p/QN5k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 b4 Kd6 f4 a5 g4 h5 d4 e5 b6 h3 f6 a4 g5 c6 g6 a3 b7 h2 f7 e4 f5 e3 f6 a2 g7 h4 b5 h3 b6 Be6 Kd3 e2 Bf4+ Kd7 d6 e1B d5 Ne7 g8Q Ra4 Ne2 Bg3 Nec3 Bh6 f8N+ Ke8 Nd7+ Bf8 Nc5 Bc8 Qe6 Rb4 N5a4 Nd7 b8R Rc4 b7 Qb6 f7+ Kd8 Qde1 Nf6 d7 Qf2 Be5 Bg7 f8N Nh5 Ng6 Re8 Rg1 h1B Rg2 Bh2 Bg3 Nf5 Ne5 Kc7 d8N Bf8 Be2 Bb4 Bf3 Ba5 Be4 Qc5 Rc2 Qf2 Rb2 Bf3 Rb6 Bg4 Rb2 Nh4 Bh7 Nf5 Qh6 Bd7 Ne6+ Kd6 Nd4+ Be6 Qhe3 Bf7 Q1c1 Ke7 d6+ Kf6 d7 Qe1 Qe4 Qf2 Qd1 Kg5 d8R Bg6 Bf4+ Kh4 Qd5 Bf7 Qe6 Bg3 Rd7 h2 Re7 Kh3 Rb6 Bh4 Bg3 Kg2 Rd8 Bg5 b8R Bd2 Rb2 Bc7 R8b6 Be1 Rdb8 Kh1 Nd2 Ne3 Rab1 a1N Na2 Nf5 Ra8 Rh8 Rg8 Nc2 Rbb8 Bf3 R2b6 Bg4 R1b2 Nb4+ Ke4 Bd6 Qa1 Bc7 Nb1 Bd2 Rg7 Re8 Rg8 Na6 Kd3 Bc3 Qg6 Ba5 Qe6 Nb4+
1b3RB1/R1NkrN2/1Qbr2p1/pB1QB2q/4BR1R/1Kn2r2/3B2pR/1n4r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 c5 d4 f5 Kd2 g6 Kc3 f4 e4 a6 b4 f3 e6 c4 d6 f2 b6 g3 d5 g2 b7 Qg5 e5 Rh5 d7+ Kd8 e7+ Kc7 e8B Qd8 b5 Ne7 d6+ Kb6 e6 Nec6 e7 Ne5 Qd5 Rh7 h5 Rf7 h6 Rf3+ Bd3 f1R h7 R1f2 h8R Rh3 Bd2 Nf7 Rh4 Re3 Nf3 Re6 Na3 Nc6 b8B Nb4 Be4 Ng5 Bf7 Ra7 e8B Bb7 Ne5 Nf3 R1h2 Qg5 d8R Qh5 d7 Bc6 Bg8 Rd6 Nf7 Na2+ Kb2 c3+ Kb3 Kb7 b6 c2 Nb5 c1R Nc7 Rg1 Rc8 Bg7 d8R Nc3 Rf1 a5 Rd7 Bh6 Re7 Bf8 Bd7 Bg7 Rf8 Be5 Be8 Kc8 Rd7 Ne1 Re7 Rff6 Rff4 Nc2 Rd7 Na3 Re7 Rf5 Rd7 Nab1 Re7 Bb7 Bb5+ Rd8 Rd7 Bc6 Ne6 Rg5 Rb7 Rg3 Bc7 Ra8 Ra7 Rb8 Bd6 Rb7 Bb8 Rd7 Bd6 Re7 b7+ Kd7 Bc7+ Bd6 b8Q Rf3 Qb6 Kc8 Ng7 Be5 Ne8 Rdd7 Bd6 Rd8 Bb4 Bb8 Bd6 Rdd7 Be5 Rd6 Nc7+ Kd7
5B2/1p1N2pN/4R3/1RBk1nR1/1K1B1QpB/QRRp1bb1/5r2/bBr2q1n w - - 0 1 illegal: No proof kernel
1Bnr2Kn/RB3RQB/1k1BNNp1/2p2p2/4q3/Q3RbR1/1pp4R/3rb2B w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 Kd7 Ke3 Kc6 Kf4 b5 d4 b4 a4 f6 e4 b3 h4 c3 e6 c2 Kf5 b2 Kg6 Nd7 Kf7 Rh6 a6 Ra7 a5 Ra8 e5 Rg6 e7 Rg2 e8R Nc5 h6 Rg4 h7 Rg2 h8Q Ne6 h5 Bd6 h6 Rb8 h7 Rb3 a7 Rh2 a8B+ Rb7 d5+ Kc5 a6 c6+ Re7 Rh4 a7 Rd4 Bd3 Kb6 Nc3 c5 Nf3 Rb4 Rh3 Rb5 Rg3 Nd4 e6 Qd7 Ng5 Be5 d6 Nf3 Bf4 Qd8 d7 Qc7 d8B Nd2 Nd5+ Kc6 Qf3 Bc3 Bd6 Rb3 Rd7 Ne4 e7 Rb6 e8R Ne7 Ne6 Ng6 Kg8 Be1 Rf7 Qe7 B8c7 Rb4 Bb8 Rd4 Nef4 Bg4 Ne6 Bh5 Qe3 Bf3 Ra5 Nd2 Be4 Nc4 Qa3 Rd2 Ra6+ Kb5 Bf5 Rc7 Bb7 Rd1 a8B Nb6 Ra7 Rd7 Be4 Nc8 Bf5 Nf8 Bg6 f5 Nf6 Bg4 Bh1 Bf3 Bb7 Kb6 Nd4 Qe2 Re5 Ne6 Re3 Nd8 Ne6 Qc4 Kf8 Qa4 Qg8 Qd4 h8R Qe4 Bh7 g6 Qg7 Qh4 Bg8 Qa4 Rh2 Qe4 Re7 Nf7 Bh7 Nh8 Kg8 Qc4 Rf7 Qe2 Rc3 Qe4 Re3 Rd8+
2b1NB1b/1n2Q1r1/4B1B1/krn1RQR1/2KN4/B4R2/n3R3/1N3nrB w - - 0 1 legal: proof: e4 h5 g4 c5 gxh5 b5 b4 a5 bxc5 d5 c4 f5 cxd5 b4 exf5 a4 d4 Qb6 c6 Qc5 dxc5 a3 Bxa3 Ra6 Bb2 Rxa2 Bc1 Ra8 Ke2 Kd8 Kd3 Kc7 h4 g5 f4 e5 d6+ Kd8 f6 b3 f5 e4+ Kc4 b2 c7+ Kd7 f7 Kc6 h6 e3 d7 g4 d8Q e2 f6 e1N h7 g3 h5 g2 h6 Ra6 Qe7 Nf3 Ra2 Kb7 c6+ Kb6 Rh5 Ra7 Ne2 g1N Qdd7 Bb7 c8B Nh3 c7 Nhg5 Bg2 Ne6 Nd4 Nfg5 Bh1 Nf3 Rg5 Nd8 Qf5 Bg7 f8R Nh2 f7 Bf6 Be6 Nd7 c8B Nc5 Re8 Ra5 f8B Nf1 Bf7 Ra7 Bce6 Bc8 Bg6 Ndb7 Ra3 Bg7 Rd3 Nf6 Rf3 Rg8 h8N Ra1 h7 Nd5 Nf7 Ka5 h8R Nc3 Rh2 Bh8 Re2 Rg7 Nd6 Na2 Nc3 b1R Ba3 Rb5 Nb1 Na4 Rd8 Nac5 Ne8 Nd3 Rd5 Ndc5 Rde5 Ng3 Nd2 Rg1 Nb1 Nf1
3R1K2/1N2QQ2/1QN1N1bN/1B1B3N/1n6/1q1pQbRb/1bbr4/5kqR w - - 0 1 legal: proof: g4 g5 b4 e5 h4 a5 f4 b5 a4 c5 d4 f5 dxc5 Nc6 fxe5 f4 Bd2 Nd4 axb5 Rb8 b6 Nf5 gxf5 g4 b5 Ra8 Bb4 axb4 Qd2 Ne7 Qd5 Rg8 Qd4 Rg5 hxg5 Ng8 Qd1 Bg7 Qd4 Nf6 Rh3 Bb7 Qc3 Qc8 Rh1 Ke7 Ra3 Qc7 Qd4 Rh8 Qd2 Bc8 Qd6+ Ke8 Qd1 Qd8 Ra7 Bf8 Ra1 Ng8 Rh3 Kf7 Kf2 h5 c4 d5 e4 b3 f6 Ke6 f7 b2 c6 d4 c5 f3 Kg3 f2 Kf4 g3 b7 h4 b8N g2 g6 Qe8 Kg5 Ne7 b6 Nd5 b7 Nf6 c7 Ng8 c6 Bc5 f8N+ Ke7 e6 Kd6 e7 Ke5 g7 Be6 c8R Bd5 c7 Bb3 Qe1 Ba7 Na3 b1B Nc6+ Kd6 b8Q Kc5 e5 Be6 Nb5 Bef5 e6 Nf6 g8N Nh5 Rd8 Qf7 e8Q Rh7 c8B Nf4 e7 Bbc2 Be6 Nd3 Nd6 Bg6 Qe3 Nb4 Rg3 h3 Bb5 f1B Ne2 h2 Nf4 h1B Bec4 Rh2 Nh5 Qd5+ Kh6 Bb6 Kg7 Bc7 Qe6 d3 Q8f7 Bb6 e8Q Ba7 Ne5 Kd4 Q8e7 Kc3 Qbb7 Kd2 Nh6 Bd4 Qb6 Ke2 Nb7 Bb2 Ba2 Qc4 Rb1 Qc3 Bd5 Qb3 Rd1 g1Q Kg8 Bh3 Nc6+ Qe3 Ra1 B1g2 Rh1 Bf3 Qe5 Rg2 Ne6 Rh2 Qef4 Qg1 Kf8 Kf1 Qfe3 Rd2
5B2/NQ1r1p2/2QBrn1q/5KR1/1R1b2nB/k4nQQ/2r2pQ1/3BN1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 a5 bxa6 Bb7 axb7 Be7 b4 Nc6 b8B Rh7 b5 Rh8 b6 Bb4 b7 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 h4 Kb4 d4 g5 d6 g4 d7 f3 d5 g3 d6 f2 h6 g2 h7 Ra5 h5 Bg7 h6 Nge7 Ba3+ Kb5 Qd3+ Ka4 Rh4 Ng8 Nd2 Qc8 d8N Rb5 d7 Rf5 Qg3 Rb5 Ndf3 Rd5 Ne1 Ne5 Bf8+ Kb5 Nc6 Rc5 d8B Nd3 Ra5+ Kc4 Na7 c6 Bbd6 Kb4 b8Q+ Qb7 e3 Be5 Be2 Qb6 Qb7 Bd4 Bd1 Ne5 Kf5 Nf6 e4 Neg4+ e5 Rg8 h8Q Rg6 h7 Rh6 Nh3 g1N Qg7 Nf3 h8Q Rg6 Rb5+ Ka3 Ng1 Rh6 Rb4 Rc2 e6 c5 e7 c4 e8Q c3 Qec6 Rd2 Qg5 c2 Rh5 c1R Qgg8 Rcc2 Rg5 Nd7 Qgg7 Re6 Qhh3 Qa6 Qgg2 Rd3 Qe5 Ndf6 Qeg3 Be5 Bb8 Rd7 Bbd6 Bd4 Rh5 Nh7 Bh4 Nhf6 Rg5 Qe2 Rg8 Qe3 Rg6 Qh6 Rg7 Ree2 Rg5 Re6
3N3B/7Q/k1NqB1B1/q3q3/p6p/1R1n1K2/QB1r2RB/1nRrqRQ1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 f5 exf5 d4 c4 d3 h4 gxh4 b6 Be6 b5 Nf6 b7 Qc8 b6 Bd5 cxd5 Nc6 b8B Qd7 Bxd3 Qc8 b7 Ng8 Bf1 Bg7 Ra6 Ba1 Rxa1 Qd8 Ke2 Kd7 d4 h5 f4 e5 g4 a5 f6 h3 f5 a4 d6 h4 d5 e4 f7 h2 f8Q e3 f6 Nb4 g5 c5 f7 c4 g6 c3 g7 c2 Nf3 Ra5 Nbd2 Na6 Ra2 Qc8 Nc4 Qe8 Nce5+ Kd8 d7 Rh7 Ng5 Rh6 Qa3 Rh7 f8R Nc5 Ngf7+ Ke7 d6+ Ke6 d8B Rh8 d7 Nf6 g8B Nfe4 Bf6 Nd2 d8Q Nb1 Q8d3 Rh6 Rg1 h1Q Qh7 Qd5 Nc6 Kd7 Bh8 Rd6 Nfd8+ Qe7 Bg2 Rb5 Be4 Rb2 Bg6 Qe6 Ba7 Kc7 b8R Qe5 Rb3 Rd5 B8f7 Q7d6 Bg8+ Kc8 Rf2 Rd4 Kf3 e2 Bf4 c1Q Bh2 Qd2 Be6+ Qd7 Qf1 Qa5 Qg2 Kc7 Rc1 e1Q Rf1 Rd1 Qg1 Nd3 Bd4 Re2 Rac2 Qe7 Bb2 Qd6 Bef7 Qee5 Qa2 Kc8 Rc4 Rc2 Rg4 Rcd2 Rg2 Kc7 Nb4+ Kb8 Be6 Ka8 Nf7 Kb7 Nc6+ Ka6 Nfd8 Rc2 Bd4 Re2 Bb2 Red2
4K1N1/R2bQ3/2pq4/1B1nN3/2bpN1n1/1Nq2Bpk/B2qN3/QBRQ4 w - - 0 1 legal: proof: f4 b5 c4 h5 g4 e5 gxh5 a5 fxe5 g5 e4 b4 d4 Bb7 d5 Rh6 e6 Ra7 c5 Ke7 Bd2 Bc8 Bc3 bxc3 e5 Rb7 Bc4 Rb3 axb3 Rf6 Bb5 Rf4 Be2 Rb4 Bf1 Rb6 cxb6 Bb7 Qc1 Qe8 Qd1 Kd8 Ba6 Kc8 Bb5 Qd8 Bf1 Be7 d6 Ba6 dxe7 Kb7 Qc1 Kc6 Qd1 Bc8 Kf2 f5 Kg3 d5 e8B+ Bd7 h4 c2 b7 c1Q h6 g4 h5 a4 e7 a3 Kh4 g3 e6 Kd6 b4 Ke5 b5 Kf4 b4 a2 h7 c6 h8N Na6 b8N Nh6 b6 Qb2 b5 Qf2 b7 Qc7 b6 Qc8 Bf7 Qe8 Nd2 Qg2 Bb5 Qf3 Ng6+ Ke3 Kg5 Kf2 Kf6 Kg2 Ne4 f4 Ne5 Qe3 Ne2 Nb4 Na6 f3 b8N f2 b7 f1B Nac5 Qg8 e8B Nf5 e7 Qd3 h6 Qe3 h7 Nd4 h8Q Ne6 Nb3 Bc8 Nbd7 Qb6 b8Q Qa6 Qd6 Nd8 Rc1 a1Q Rh7 Q6a4 Bg6 Qa6 Bef7 Q6a5 e8B Qc3 Qe7 Qf8 Bh5 Kh3 Bf3+ Qh6+ Bg6 Qa2 Bf7 Qad2 Bg8 Nf7 Ke6 Bb7 Ndf6 d4 Kd7 Bc8+ Ke8 Nd5 Qg7 Nd8 Qa7 Bf5 Qge7 Nf7 Qa1 Bc8 Rg7 Qhf4 B6h7 Nh6 Bf7 Bf5 Ng8 Ng4 Nec5 Qh6 Qd6 Nge3 Ng1+ Kh4 Na5 Nb4 Ba2 Bc4 Nab3 Bc8 Bhb1 Nbd5 Ne4 Ng4 Ne2 Kh3 Ra7 Bf5 Qd8 Qd6 Qe7 Bd7+
6N1/Q1bqNkNp/5rN1/r2p1RR1/1pQ2Q1p/1N6/1q1n2BR/2K1R2B w - - 0 1 legal: proof: d4 a5 e4 b5 a4 f5 exf5 c5 dxc5 Bb7 b4 Ba6 bxa5 b4 Kd2 Nf6 Ke1 Bb5 axb5 Ng8 h4 Nf6 g4 Qc8 h5 Qd8 g5 Ng8 g6 Nc6 Bf4 Ne5 Bh6 gxh6 g7 Ng6 hxg6 h5 Ra2 h4 Ra3 Ra7 Ra1 Ra8 Kd2 e5 c4 e4 f4 d6 f6 e3+ Kc1 e2 c6 e1Q f5 Rc8 b6 Qe5 c7 Qe2 c5 Ra8 c8Q Qa6 b7 Qb5 b8Q Ra7 a6 Qe2 f7+ Ke7 c6 Nh6 g8R Qh5 g7 Ng4 c7 Qg6 Nh3 Nh2 Ng5 Rb7 a7 Rb6 a8B Ng4 Qa4 Qe6 Qaa7 Rb7 Bg2 Qe8 Nd2 Q6d7 Nb3 Ne3 Ne6 Qb5 Rh2 Rb6 Qca6 Qc8 f6+ Kd7 Bae4 Qd5 Qc4 Qcb7 c8N Qd4 Ne7 d5 Qf4 Nf1 Bh1 Nd2 Beg2 Ne4 Nc8 Bd6 f8R Ra6 f7 Bc7 Ne7 Rb6 Kc2 Rd6 Re1 Nd2 Kc1 Ra6 Ra8 Qc8 f8N+ Ke8 Rb8 Ra5 Nfg6+ Kd7 Rf8 Qd8 Rf5 Ke8 Rb7 Rf8 g8N Rf6 Ng7+ Kf7 Rb6 Qf2 Rbe6 Qc8 R6e5 Qd7 Rg5 Qd4 Ref5 Qb2+
B4NQ1/rnQ3r1/1pQBRp2/QpR1Bn2/3np3/2N1k1KN/Q2bB3/8 w - - 0 1 illegal: No possible last move
1nQ1n1QR/KQ4q1/rn3B2/q1Q2b2/2N1B2N/5RN1/kB2Nq1r/2r1b2N w - - 0 1 illegal: No possible last move
2QK1N1N/B1NQ1rBn/1R1b1B2/B1b1r3/1qk3N1/1Rnr4/1n5R/b1Nr4 w - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 f4 h5 g5 Kd7 g6 Nf6 Bh3 Ng8 Bg4 hxg4 f6 Kd6 f5 Be6 Ra2 Kd7 Ra1 Bf7 gxf7 Rh3 Qf3 Rh5 Qd1 Rh8 Ke2 Kd6 Kd3 Kc5 Ke4 g5 Ke5 a5 Ke6 a4 b4+ Kd4 h4 c5 h5 c4 d6 a3 h6 c3 b6 g3 b7 g4 b5 g2 b6 g3 d7 a2 h7 c2 Bb2+ Kc5 d4+ Kb4 d5 c1B d6 Bf4 Rh2 Kb5 Nh3 g1B Nf2 g2 Nc3+ Kc4 Rb1 a1N Na2 Nc2 Ng4 Be5 Nc1 Nc6 b8R N2b4 b7 Qb6 d8B Na2 Kd7 Qb4 Ba5 Bc5 Kc8 g1R d7 e6 d8Q Ra7 Q1d7 Bfd6 f8B Nc3 f7 Nf6 Bg7 Rd1 f8N Rg8 h8N Nh7 f6 Bed4 f7 e5 Rc2 e4 Rh2 e3 Ne6 e2 f8N e1R Nc7 Ne5 Q8e8 Rd3 Kd8 Red1 Bf6 Rg7 Ba1 Re7 Rb3 Rf7 Qc8 Ra6 Qed7 Rb6 Ra8 Rb5 b8B Rh3 Bb2 Nd3 Ra6 Rf3 Ba1 Nb2 Ba7 Rfd3 Bg7 Bb6 Bf6 Re5 Bg7 Bbc5 Rb6 Nb5 Bf6 Nc3 Nhg6 Ne2 Rb7 Na4 Bg7 Re6 Rb6 B4e5 Bc3 Ree7 Be1 Ba1 Bh4 Re5 Nh8 Nb2 Bhf6 Nc3
1Q1R3B/B1Nr2Q1/2Q5/2nq2nk/1rbNrQ2/1qR1n3/b4RK1/1NQ1R2n w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 g6 a4 Bb7 axb5 Bc8 f6 Kd7 f7 Bg7 Nh3 Bh6 Ng1 Bf8 g4 Bg7 h4 Bb7 f4 Bf6 f5 Ba6 g5 Qc8 Bd3 Bc3 f6 Qd8 Bc2 Be5 Bf5+ gxf5 g6 Bf4 Ra3 Be3 Ra1 Bg5 hxg5 Bc8 Kf2 c5 f8B Ke8 b4 a5 d4 h5 b6 e5 b5 c4 g7 Kf7 d6 Kg6 f7 c3 d5 c2 d7 a4 d6 a3 b7 e4 b6 a2 Qe1 f4 Nf3 e3+ Kf1 e2+ Kf2 h4 Nd4 f3 Be3 c1Q Rh3 Qc2 Qc1 Na6 b8Q Rh7 b7 Nh6 g8Q+ Kh5 g6 Qb3 Bg7 e1R f8R Nf7 Bh8 Ng5 g7 Nc5 Qd5 Ra4 g8Q Rb4 Qc6 Qa5 d8Q Be6 Qdc7 Rd7 Qg7 Bg8 Rg3 h3 Rf4 h2 Rf8 Rf7 d7 Qa8 d8N Rd7 Qf4 Re2+ Kf1 h1N N8e6 f2 Nc7 Re1+ Kg2 f1B+ Kh2 Be2 Kg2 Bec4 Bg1 Qa5 Rc3 Re4 Qd8 Qc2+ Qfd2 Nb3 b8R Qc5 Nf5 Rb6 Qd1+ Be2 Na3 Qc4 Bd4 Rb5 Ba7 Nc5 Nd4 Rb6 Rc1 a1N Nb1 Rb4 Rf2 Qa4 Qdf8 Nc2 Qdf4 Qf7 Qd8 Qf5 Qdd2 Ba2 Re1 Qd5 Qc1 Bec4 Qc8 Qb3 Q8b7 Nh7 Rd8 Ng5 Qb8 Ne3+
N4Bkn/2RQQ1b1/8/3bqqB1/1Kq2B2/1RBBbrQ1/1b1rn1R1/N1Q5 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 f4 Kf7 d4 g5 Kd2 c5 h4 e5 d6 g4 f6 c4 b6 g3 d5 e4 b7 g2 h6 b3 Kc3 e3 f5 e2 h7 e1Q+ Nd2 b2 d7 b1Q h5 Qe3+ Bd3 Qc5 d6 Na6 b8Q Nh6 Nh3 g1B Rh2 Be3 Nb3 Qc6 Nf4 Qg2 Ne6 Rg8 h8R Qg6 Nc7 Ra7 Ra3 Qa2 Na1 Ng4 h6 Qh7 Na8 Qe8 d8B Nc7 d7 Ne6 Rb3 Ne5 Rg2 Bg7 Kb4 Ng6 Qg3 c3 Bd2 c2 Qc1 Kf8 f7 Ra3 Bg5 Bb7 d8Q Bd5 Qd7 Nd4 Bc3 Ne2 Be5 Nh4 Bef4 Qg6 Rh7 Qe5 Qg1 c1B Q1e1 Bb2 Qc1 Bf6 Rg7 Qh5 h7 Ng6 h8B Qf3 Rh7 Bg7 Rh6 Nh4 Rc6 Ng6 Rc5 Bh6 Bhf6 Nh8 Rc7 Rg6 Qc2 Bg7 Qc1 Qe8 Bd4 Rd6 Bc3 Qe5 Qce1 Bf6 Qc1 Kg7 f8B+ Kg8 Bb5 Qf2 Bd3 Bg7 f6 Qf3 Nb6 Qg4 Na8 Qgf5 f7+ Kh7 Be4 Bc4 Be1 Bed4 Re3 Bh6 Bfe7 Bg7 f8Q Ba7 Qf6 Kg8 Bf8 Rdd3 Qfd8 Bd5 Q8e7 Rd1 Bc2 Rad3 Bd2 Rf1 Bb1 Rf3 Be1 Rd1 Bd2 Qa6 Rb3 Be3 Bc3 Rd2 Bd3 Qc4+
4B2K/3QrR1Q/2q2B2/1RN1Rq1R/3qQ2Q/1b1b2q1/kn3bqN/B3r2R w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 f6 h5 b6 c5 b7 f3 b8R+ Qb6 g7 h4 d6 f2 g6 h3 d5 h2 f7 a4 d7 e6 d8Q c4 d6 c3 d7 c2 Nf3 Kb3 Nc3 a3 Na4 a2 Qh4 Ra6 d8B Ne7 Kf6 Nc6 g8Q e5 g7 e4 Bb5 f1B Qd7 e3 Qgh7 e2 g8R e1Q Rg5 Qg3 Rh5 Bc5 f8R Ra7 Rf7 Qa5 Be3 c1Q Bd4 Qcd2 Re1 a1Q Ree5 Ka2 b4 Qdg2 Rb6 Qd1 Ba1 Bf2 Nc5 Bd3 Ba4 Qd2 b5 Nb4 Rb8 Rc7 b6 Re8 b7 Qe3 Be7 Qd4 Bc6 Bf5 Bd8 Nd3 Qe4 Bg6 Kg7 Nb2 Bf6 Re7 Qh4 Bd3+ Kh8 Qb5 Qdg4 Bcf5 Qe4 Be6 Be8 Rc8 Ra8+ Qa5 b8Q Bb3 Qb5 Rc6 Qb7 Rce6 Rb8 Qb5 Qd7 Qc6 Rc1 h1Q Rb5 Qhh3 Nh2 Qhg4 Rh1 Qf5 Bg7 Rg6 Bf6 Rg4 Qe2 Re4 Qeg4 Re2 Qe4 Re1
2NkrN2/R2n4/3qnN2/3q2BR/q2R1Qq1/2Nq1r2/3R1K1b/Q2NrBQ1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 d4 c5 b4 h5 d6 a5 d5 e5 b6 c4 f6 e4 b5 e3 d7+ Kf7 d6 h4 g6+ Ke6 b7 e2 g5 h3 b6 a4 f7 c3 g7 a3 g6 a2 Kf2 e1R Ne2 f3 Bg5 c2 Nbc3 Ne7 g8Q c1Q g7 h2 Qd4 Ra4 Nd1 Ng6 Nec3 Ra3 Qa4 Qc7 d8R Nf4 d7 Bd6 Qa6 Be5 f8N+ Kd6 Qa5 Ne6 Qa6 Qf4 Qa8 Na6 b8Q Qg4 b7 Nac5 Qa4 Bf4 Qba7 Qc6 b8N Qb6 Q7a6 Kc7 Nc6 Be5 Ne7 Qd6 Nc8 Bf4 Rc1 a1Q Rc2 Be5 Qf4 Rb3 Rd2 Qa4 Re8 Ra3 d8R Nd7 Re7 Rb3 Rg1 h1Q Rg3 Qhh5 Rh3 Qf7 Rh5 Ra3 Qe4 Bh2 Qb4 Qff5 Qf4 Qd5 Qa8 Rb3 Rf7 Qae4 Qa1 Qa4 Qh7 Ra3 g8N Rb3 Nf6 Rg8 Re8 Rh8 Ree7 Kd8 Qg6 Rg8 Rfh7 Rh8 Rh4 Rg8 R7h5 Ra3 N8h7 Re8 Nf8 Qab3 Qb4 Re3 Nce4 Qgf4 Bh3 Qc7 Kf1 f2 Bh6 Nb6 Qg1 Qa4 Bg5 Qcd6 Ra7 Nd7 Rg4 Rad3 Nec3 Qff5 Qe4 Re1+ Kg2 Qff4 Qf3 Qff5 Rd4 Rde3 Qe4 Rf3 Qf4 f1Q+ Kh1 Q1d3 Kg2 Rfe3+ Kf2 Qg4 Bf1 Rf3+
4NR1q/2b5/2br3n/R1R1B1Qr/B1Q2Q2/1BK3Qb/1pR1QN1n/k4q1r w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 f4 Kd7 d4 Kd6 Kd2 c5 g4 h5 g6 e5 g7 h4 f6 e4 b6 b3 f7 c4 b7 b2 g5 h3 f5 e3+ Kc3 h2 f6 e2 g6 e1Q+ Nd2 Rh6 Nh3 Qee7 Nf2 Ra5 Qe2 Qb6 Nde4+ Kd7 d6 Kc6 d7 Kb5 d8Q Qec7 d5 Rh5 d6 Rf5 d7 Nh6 g8B Bd6 f8R Rh5 f7 Qa6 g7 Nc6 Nf6 Qb8 Ne8 Nd4 Bf4 Nf3 Be5 Bc7 Qg5 Kc5 d8R Bh3 Rg1 h1B Rd2 Nh2 Rc2 Bc6 Ra4 Qd8 b8Q Rb5 Bg2 Rb6 Ra5+ Qb5 Rgc1 Qc8 Kd2 Kb4 Bh1 Kb3 Bd5 Bb7 Bc6 Qa6 Ba4+ Ka2 Kc3 Rd6 Qf5 Qd8 Qg5 Be4 Qc8 Bc6 Qcg4 Qb5 Qg3 Qf6 Rd1 Qa6 Rdd5 Ka1 Rdc5 Qa8 Bh7 Qc8 g8Q Qh8 Be4 Qf5 Bd5 Qd3+ Kb4 c3 Bdb3 Bf1 Q8g6 Qd1 Qge4 Bh3 Q4c4 Qe1 Rg8 Qb1 f8Q Qh1 Qff4 Qf1 Rd2 c2 Rf8 c1R Rc2 Qg2 Kc3 Rh1 Q3h4 Qg1 Qhg3 Qf1
Qn2NN2/B1r1b1N1/qQBq4/1QK2Rb1/q1p3r1/B3N3/k4BnN/2Rn4 w - - 0 1 illegal: No possible last move, all moves rejected
1R4B1/kn3NQ1/1rBpq3/NbnR1rNN/4nq1N/3B1R2/QbK5/3r1B2 w - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 f6 h6 g4 Rh7 g5 Na6 f5 Rh8 fxg7 Nb8 g6 Nf6 Bd2 Ng8 Bg5 hxg5 Kd2 Qb6 b4 a6 h4 e5 c6 Kd8 c4 Kc7 Qa4 Ne7 g8N Ra7 Qa5 g4 Rh2 e4 g7 e3+ Kc2 g3 h5 e2 h6 e1R f6 d6 c5 Bb7 f7 Nd7 h7 Kb8 c7+ Ka8 c8B g2 Nf3 g1N c6 Qe3 c7 Rd1 b6 Qe6 b5 Qc4+ Nc3 Nh3 Ra3 Ng6 Nf6 Rd3 Nh5 Bc6 Rd2 Nf2 Nh4 Qf4 Ne4 Ne7 Rc3 Rg8 h8N Rb7 Ng5 Nc5 Bd7 Nfe4 Be8 Rb8 b7+ Ka7 Bd7 Rd4 Rf3 Rd3 Be8 Bd7 Qa4 Nc6 Qc4 Be7 f8Q Nd8 Qf6 Rf8 g8B Rd4 Qg7 Rf5 c8B Bf6 Nhf7 Rd3 Qb3 Bc6 Be6 Bb2 Bc4 Rd4 Rh2 Rd1 Rd2 a5 Bce2 Nf2 Rd5 Bd7 Bd3 a4 Re5 a3 Qe6 Rc8 b8N a2 Qb3 Rc6 b6+ Kb7 Qa4 Nfe4 Qc4 Ka8 b7+ Ka7 Qa4+ Ra6 Qc4 Bb5 Nc6+ Kb6 b8R+ Ndb7 Na5 Ka7 Bc6 Rb6 Ne6 Qh6 Qd5 a1Q Neg5 Qe6 Qc4 Ng3 Qb3 Qa4 Rd5 Qf4 Qa2 Nge4
nNRb4/3RpNkB/6B1/2q1K1b1/1b2Qr1r/1n1QB3/3R2Nb/RbR2B2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 fxg5 Bg7 g6 Bh6 g5 Bf8 Qg4 hxg4 Ke2 a5 Kd3 c5 Ke4 a4 h4 a3 b4 c4 d4 a2 h5 c3 f6 c2 g7 Kf7 b6 g3 b5 g2 b7 Ra6 d6 Bg4 d5 Bd1 d7 Be2 h6 Qc7 d8Q Qd6 b6 Qg3 d6 Qf3+ Ke5 Bd3 d7 Be2 h7 Qh5 Be3 c1B Nd2 Bd1 Ne2 g1B Ne4 Ba4 Nf4 Nh6 Ng2 Rg8 h8R Bc2 Nd6+ Kg6 f7 Bb1 Rh7 Rh8 g8B Ra4 Rh2 Na6 b8N Rg4 b7 Nf5 Rh6+ Kg7 g6 Rg5 Bh7 Rg4 Rh1 Qg5 R6h2 Bf2 Rg1 Bd2 Rgh1 Rf4 Rg1 Qh5 Rgh1 Kh6 g7 Nc7 g8B Kg7 Bg6 Na8 B8h7 Bg3 Na6 Ba5 b8Q Bge1 Qb7 Beb4 Qe4 Qg5 Nb8 Qh5 Qc8 Bd8 Qcc4 Qg5 Qcd3 Nd4+ Qf5 Nb3 Rg1 Bda5 d8R Qh5 Rd7 Bd8 Ne1 Qg5 Rd2 Qh5 Ng2 Qg5 Bg8 Rhh4 B8h7 Qh5 Ke6 Qg5 Qfe4 Qc5 Rh1 Kh8 Rg1 Bh6 f8R+ Kg7 Nf7 Bg5 Rh8 Bc2 Rc1 a1B Re8 Be5 Ra1 Bda5 Rc8 Bd8 Rh1 Rf3 Rg1 Bh2 Rh1 Rff4 Rg1 Qa7 Ke5 Qc5+ Qed5 Qb5 Be2 Nd4 Rgc1 Qc5 Bf1 Bb1 Qe4 Nb3 Qd3 Qc4 Q5e4 Qc5+
2N2r2/1qN4q/Q1N2B1p/1nb3bk/R3R3/bB3R1B/1bnR1R1Q/r3BK2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 d4 Kf7 b4 e5 b6 c5 g6+ Kg7 d6 a5 b5 f3 d5 a4 d7 a3 b7 e4 b6 e3 g5 a2 d6 c4 Nc3 h6 Nge2 Ra7 Nb5 c3 Rh4 c2 Nc7 Qe7 d8B Qf6 d7 Ne7 Qd6 Qe6 f6+ Kg8 g7 Kh7 g8N Kg6 f7 Ra6 Bd2 c1B Bh3 f2+ Kf1 Nd5 Bf6 Nc3 d8R Ne4 Nd4 Qb3 Be1 Ba3 Nc6 Nc3 Re4 Nb5 Nge7+ Kh5 g6 Qd5 g7 e2+ Kg2 Ra8 g8B Na6 b8Q Nb4 b7 Nc2 Nc8 Qb3 Qh2 Bfc5 f8R Qb1 Rd2 f1Q+ Kg3 Ra6 Qa8 Qf5 Kg2 Qh7 Bb3 Ra5 Rf7 Rf8 b8R Ra4 Qa6 Qb2 Rc1 a1B Ra8 Qb1 Rcd1 B1b2 Rd3 Ra5 Rf3 Ra4 Rd2 Ra5 Bg3 e1B Kf1 Ra4 Rd8 Bd2+ Be1 Bg5 Rd2 Qh8 Rdf2 Qh7 Rd7 Bab4 Rdd2 Ra1 Qb6 B4a3 Raa4 Qc1 Qa6 Qd1 Rde2 Qd5 Rd2 Qdd7 Nd5 Qa7 Nc7 Qb7
7n/2Bk1p1q/2n1rQR1/1NQ3Qq/7B/B1RrbR2/K1Q2b2/1Bq1Q1Nq w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b6 h5 gxh5 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Qg5 Bg2 Qf6 Bf1 Qd8 e4 g5 h4 c5 d4 g4 Kd2 f3 Kc3 a2 Kb2 g3 h6 g2 h5 f2 b7 c4 e5 Ra5 h7 Qc8 d6 Ne7 h6 Qc6 d5 Na6 b8B Kd8 d7 Nc7 e6 Ra7 a5 Ra6 Qc2 Qa8 Rh3 Nf5 Rc3 Nh4 Na3 Ra7 a6 Bg7 Bd3 f1Q Nb5 Rf8 h8R Bd4 h7 Nf3 Rg8 Re8 h8Q Qe2 Rg6 Ne5 Qf6+ Re7 Ka3 Nc6 Rb1 a1B Rbb3 Bf2 Ka2 Qh5 Ba3 Bb2 Bf5 Bc1 Be4 Rb7 a7 Bce3 Bd3 Rb6 Qg5 Qb7 a8Q Qc8 Qa7 Qa6 Nf3 g1Q Bf5 Qg2 Ng1 Qgh1 Be4 Rb7 Qc5 Qh7 Bf5 Qa5 Bd3 Ne8 Bg3 Nf6 Bh4 Nh5 Bf5 Bc1 Rf3 Nf4 Rbc3 Bd2 Qb3 Rc7 Bb1 Bde3 Qc2 Rb7 Nd4 Kc7 d8B+ Kc8 d6 Rb3 Bb6 Re8 e7 Kd7 Bc7 Qb5 Rg7 Ng6 Qf6 Nh8 Rg6 Qa5 Qfg5 Rb6 Nb5 Rd8 Rd3 c3 e8Q+ Kc8 Qe4 Kd7 Qf6 Bc1 Qe1 Bce3 Qb3 c2 Rc3 c1Q Qc2 Qb4 Qfg5 Qg4 Qf6 Qgh5 Qfg5 Kc8 d7+ Kb7 Bb4 Na5 Qb2 Re6 Ba3 Nc6 Qb3 Ra8 d8Q Ra4 Bcg3 Rd4 Qdf6 Kc8 Bc7 Kd7 Qc2 Rd3
7Q/1NR3K1/1pB4Q/2qbnQBB/R1N2n2/RQB2b1q/r1b1k1B1/1q3n2 w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 Bd7 h4 Bh6 e5 Ra3 f6 Rc3 f5 Bg5 hxg5 Bc8 f7+ Kd7 Rh2 Rc6 Rh1 Rf6 exf6 Qf8 Bh3 Qe8 Bf1 Qd8 Ke2 Kd6 Kd3 Kc5 Ke4 e5 f8Q+ Ne7 d4+ Kb6 a4 c5 d6 h5 f7 g3 g6 b3 d7 h4 f6 g2 g7 c4 g8B h3 d5 Kc5 a5 c3 d6 c2 a6 b6 a7 h2 a8B b2 Nc3 b1B Nb5 Nd5 Kf5 e4 Kg6 e3 Bb2 c1N+ Kg7 e2 Nf3 Kc4 Ne5+ Kb4 Bc3+ Kc5 Ra4 g1Q+ Bg2 e1Q Bc6 Nb3 Nc4 Qde7 d8Q Qh4 d7 Bc2 Nbd6 Nd2 Qde8 Qe5 d8B Nf4 Qd7 Qf1 Qf5 Qh3 Qb1 Bb7 Qb3 Qfd3 Rha1 h1B R1a3 Nf1 Bh7 Qd1 Bg6 Nd7 Bh5 Qb1 Qg8 Qd5 f8Q Ne5 f7 Qd4 Bg5 Qf2 Bd7 Bf3 Nb7+ Kd5 Qgh7 Qc5 Qa8 Rc8 f8R Rc6 Rf7 Rc7 Ba5 Kd4 Qah8 Rc8 Qh6 Ra8 Bc6 Bd5 Be4 Bf3 Rc7 Ra7 Bb4 Ra8 Nb2 Ra5 Bc3+ Ke3 Nc4+ Ke2 Rf7 Bg4 Bg2 Bgf3 Rc7 Rb5 Qa2 Rb2 Qb3 Ra2
2kqB3/4b3/NBp1bR1R/NQrbK3/Q1Q5/2bQRr1n/N4R1r/1b2R3 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Ke2 Kd7 Kf3 h5 Ke4 e5 b4 a5 d4 h4 b6 h3 g7 f3 f6 h2 g6 a4 b7 a3 b8N+ Kd6 b5 a2 f7 f2 b6 Ke7 d6+ Ke6 d5+ Kf6 b7 Ra3 d7 Ke7 d6+ Ke6 Nf3 Qe7 d8Q Ra5 d7 Qa3 Be3 Bc5 f8R Qb2 Na6 Ne7 g8R Qb6 b8Q Nd5 g7 Be7 Nc3 Nf4 Bb5 f1B Qa4 Nh3 Re1 a1B Na2 Bc3 Nd2 Rh5 Bc6 Rc5 Nc4 Rh6 Rf2 Bd3+ Kf3 Rh5 Re8 Bb1 Na5 e4+ Kg4 Rhf5 g8Q+ Kd6 Rhf1 h1B Qgc4 Rf3 Bd4 e3 Rh8 Qb3 Qbb5 e2 Rh5 Qd1 Rh7 Rd5 Bb6 Rc5 Rh5 Bg2 Re5 Qd3 Re3 Qd5 Qg8 Qd3 Qh7 Qd5 Qhd3 Qd4+ Be4 c6 Rh1 Qd5 Rh2 Ke6 d8R Bh1 Rh8 Kd7 Bg6 Bg2 Rhh1 Qd6 Ref1 e1R Rh6 Re2 Bh5 Rb2 Rf6 Rc2 Rfe1 Re2 Qh7 Qc7 Be8+ Kd8+ Qf5 Be6 Rh2 Kc8 Rhh1 Nf4 Rhh6 Qd8 Kg5 Nh3+ Kg6 Rf4 Qfd3 Bgd5 Rff3 Rh2 Rf2 Bg8 Kg7 Rf3 Kg6 Rg3+ Kf5 Bgf7 Qd4 Bg8 Ke5 Rf3 Qdc4 Bge6 Qd3 Bd2 Qd4c4 Bc3+
r7/1QnBR2b/1RQ1N1qN/k5q1/qr3RBQ/2B2R2/2rRK2p/1Bq4b w - - 0 1 legal: proof: a4 d5 c4 e5 cxd5 f5 g3 b5 axb5 e4 Qc2 e3 Kd1 exf2 Qa4 Qh4 Kc2 Bc5 Kd3 Qg5 Qd1 Qd8 Kc2 Bf8 Nh3 g5 Ng1 f4 Ra6 f3 Ra4 Nd7 Ra1 Bd6 h3 Bf4 gxf4 Ne5 h4 g4 Bh3 Nf7 Bf1 Ng5 hxg5 Qd6 Ra4 Qe7 Ra1 Qd8 Kd3 Kd7 e4 c5 b4 Kc7 f5 Kb6 d6 a5 d7 h5 g6 h4 e5 g3 g7 h3 e6 g2 e7 a4 e8B a3 f6 h2 f7 a2 f8R Ra4 Qc2 Rh3 Be2 f1Q Nc3 f2+ Rf3 Rh5 Nd1 Rh4 Nh3 g1Q Bb2 Qg3 Ne3 Qg4 Bc3 Qg6+ Nf5 Ra7 Nf4 Qgf6 Re1 a1Q Ne6 Qa2 Nh6 Qg2 Rhf1 Ne7 g8B Qg3 Bh7 Qdc7 d8Q Qb3 Bd7 Kb7 b6 Ka6 b7 Qgg7 b8R Bb7 b5+ Kb6 Rf4 Ra2 Bg4 c4+ Ke2 Qfg6 d4 Ra8 d5 Qa4 d6 Nd5 Qc1 Qg5 Bb1 Q7g6 Qe7 Qc8 Rf3 Nc7 Qc2 Ka7 b6+ Ka6 Rf4 Bh1 b7 Qf8 Rf3 Qff4 Rd8 Qc1 b8R Qb3 Rb4 Ka5 Qe4 Qba3 Qc6 Qa4 Rb6+ Qb4 Bd4 c3 Qh7 c2 Bc3 Qf7 Qhe4 Qfg6 Qb7 Qa3 Qec6 c1R Rdf8 Qa4 R8f4 Qa1 Rd1 Rc2+ Rd2 Qa3 Re1 f1B+ Kf2 Bfg2 Ke2 Qa4 Bc8 Qa3 d7 Qc1 d8Q Bh3 Bd7 B3g2 Re3 Be4 Ref1 Bf5 R1f3 Be4 Nd4 Bf5 Re7 Be4 Ne6 Bf5 Bb2 Qa4 Bg7 Be4 Bc3+ Qb4 Rf8 Qe5 Bf5 Qgg3 Ree8 Qef4 Bh3 Bh7 Rf7 Rg4 Qh4 Qf6 Ref8 Qg6 Re7 Rc4 Bf5 Q3g5 Bg4 Rd4 R8f4 Rc4 Bb2 Qa4 Bc3+ Rb4
Q1rRn3/1rb5/n2N4/N2Bn3/BkB2QN1/3QRNQ1/r1p1Kqq1/4Nn2 w - - 0 1 illegal: No possible last move, all moves rejected
3q2Bq/Q7/1Q2b2B/2N1kq1B/2rp2qR/2n3K1/rRbr1N2/BQ3RRB w - - 0 1 legal: proof: f4 b5 e4 f5 exf5 c5 h4 g5 d4 cxd4 a4 Na6 f6 Nc7 axb5 Ne6 g3 Bh6 f5 Nf4 gxf4 g4 Nh3 Bb7 Ng1 Bg5 hxg5 Bc8 Kf2 Kf7 c4 e5 b4 d5 c5 a5 g6+ Ke8 g7 Kf7 c6 h5 c7 h4 b6 h3 b7 h2 b8Q e4 b5 a4 b6 a3 b7 a2 Nh3 e3+ Kg3 e2 Bb2 e1Q+ Nf2 d3 Nc3 d2 Na4 d4 Qa7 Qd5 b8R Qe2 Nc5 Rh5 Qb1 d1B Bg2 Bd7 c8B Qc2 Be4 Ne7 g8B+ Ke8 Rb7 Be6 f7+ Kf8 Bc3 Kg7 f8R Qd8 Rb2 Rg5 Bd7 Rc8 Be8 Qd3+ Bf3 Bc2 Bh5 Rc7 Rg1 h1Q Rf1 Nd5 f6+ Kh8 f7 Kg7 f5 Kf6 Re8 Ke5 f6 Qf5 f8Q Rc8 f7 Rg6 Na6 Rc4 Qfc5 Rf6 f8B Qh4+ Kg2 g3 Qcb6 Rh6 Nc5 Rh8 Ba5 Nc3 Bh6 Rh7 Ba8 Qhf6 Rf8 Qh8 Rh1 Rg7 Rh4 Rg4 Kh3 g2 Rf6 g1Q Bh1 Qd1 Bb4 Re4+ Kg3 Re2 Rg6 Na4 Bc3 Rd2 Kh2 Qe2 Rg1 Qee4 Kg3 Qe2 Qe1 Qee4 Rab1 a1R Qf1 Ra2 Qd3 Bb3 Rbf1 Bd1 Qb1 Bc2 Rb5 Qe2 Ba1 Nc3 Rb2 Qeg4+
1B3r2/qB2Qp1R/2q1NK1b/2r5/1k1q4/1BnR1N2/2QQ1nRq/RR1Q1r2 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b6 h5 gxh5 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Qg5 Bg2 Qf6 Bf1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 g5 d4+ Kc4 e4+ Kb4 h4 c5 h6 c4 h7 c3 b7 f3 d6 f2 h5 a2 d7 g4 h6 g3 a5 g2 d5 c2 a6 Ka4 d6 Qb6 d8Q Be7 a7 Qb4 d7 Bf8 Nh3 g1Q Bc4 f1R Nd2 Rf6 Ng5 Be7 Rh2 Qe3 Rg2 Qg1 Bd5 Rf2 Ndf3 Kb5 Bf4 Qh1 Rc1 Na6 b8R+ Ka4 Kf5 a1Q e5 Bf8 e6 Bd6 e7 Qb7 e8Q Nc5 Ne6 Rf1 Qee7 Qc3 Ra1+ Kb5 Qc8 c1Q d8R Nf6 Rd7 Rf8 h8Q Be5 h7 Nfe4 Bh2 Bc7 Qhd4 Na4 h8R Bf4 Q4d2 Bh6 Rh7 Nf2 Bg3 Qb4 Kf6 Qh2 Qc7 Qca3 Qcc2 Nc3 Ba2 Qb6 Rd3 Qd4+ Be5 Ka5 Rb7 Qbd6 Rbb1 Rac8 a8B Rc5 Bb3 Kb4 Bc6 Qa7 Bb7 Q4d5 Bg3 Q6c6 Bb8 Qd4+
q3R3/5R2/bb5b/NB1R2N1/Q2BpQ1K/bN6/1N2nb1b/1rRBkNn1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 f5 e4 d5 exf5 b5 axb5 a4 cxd5 Ra5 bxa5 Rh4 Bh3 Rh6 Bf1 Rh8 d4 Kd7 h4 Kd6 f4 g5 Kf2 e5 Kg3 c5 a6 c4 h5 c3 h6 a3 h7 c2 a7 a2 a8B Nd7 f6 Qa5 b6 Ne7 b7 Rg8 h8N Rg6 b8R Bb7 f7 Rg7 f5 Ng6 f6 Rh7 Nc3 Bc8 Na4 Be7 f8R Rh6 f7 Qd8 Bb5 Rh5 Be3 c1B Nf3 Nf4 Nd2 Ba6 Nb2 Rh7 Qa4 e4 Rh5 Ne5 Bf2 Qd7 Rbe8 Qd8 Be2 Qb8 Bc6 Qa8 Bcb5 Nf3 Rb1 Bd8 Bg1 Bb6 Be3 Kc7 d6+ Kb7 d7 Kc7 d8N Kd6 Bd1 Kd5 Nb7 Rh6 Bc2 Ne2+ Kg2 g3 Kh3 g2 Nc5 g1B Ncb3 Rc6 Nf1 Bh2 Bd1 Bd2 Bg1 Rc1 Bf2 Bb4 Ra1 Ba3 Be3 Ne5 Bf2 g4+ Kh4 g3 Rb1 Kd6 d5 g2 Bd4 g1B Rg5 Be3 Rf5 Bh6 Rh5 Kc7 d6+ Kb7 d7 Nf3+ Kg4 Kc7 d8N Nfg1 Nc6 Kd7 Kh4 Kd6 Rc8 Ke6 Nca5 Kd6 Rd5+ Ke6 Rdd8 Kf5 Rd5+ Kf4 Rc7 Kf3 Re8 Kg2 Ra7 Kf3 f8Q+ Kg2 Nf7 Kf3 Ne3 Kf2 Ng5+ Ke1 Qf4 Rc2 Nbc4 Rb2 Rc1 Rb1 Rf7 a1B Bh8 B1b2 Nf1 Bbg7 Nb2 Bgd4 Bg7 Be3 Bd4 Bf2+
q1n1b1kB/r5Nb/2Q1RpBR/2p5/2r4q/Q1N5/K2R1R1N/Bn2N1bN w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 h4 c5 d4 g5 Kd2 g4 Kc3 f6 Kb3 Kf7 e4 g3 h6 g2 b6 f3 a6 f2 e5 Bh3 d6 Qc7 b7 Ra7 d5 Qe7 e6+ Ke8 h7 Bg7 h5 Kf8 h6 Ra8 d7 Bf5 d8N Nd7 b8R Ra7 d6 Qe8 Rb6 Qe7 Bd3 f1B Bb2 Ne5 d7 Qd6 Ne2 g1Q Ra2 Qe7 Nc6 Ng6 d8R+ Qe8 e7+ Kf7 Ng3 Qe3 Ba1 Rc7 a7 Nh4 a8Q Rd7 Nb4 Rd5 Nc3 Re5 Qa3 Qe2 Re6 Qf3 Nc2 Qf2 Qf3 Re4 Ne1 Qh2 Rd4 Qa8 e8N Ne7 Rg2 Rg4 Ka2 Nc8 Rd8 Rf8 h8N+ Kg8 Ng6 Rf7 Ne5 Ra7 Rb2 Bf8 Rf2 Bd6 Qd5 Rga4 Ng4 Nf3 Be4 Bb5 h7+ Kf8 h8B Kg8 Bd3 Bh7 Bg6 Rc4 Ng7+ Be8 Qc6 Nd2 Rd7 Bb8 Rd3 Nb1 Rdd2 Qh5 Rh4 Qh6 Nh1 Bh2 Rh3 Qf4 Rh6 Bg1 Nh2 Qh4
bB4n1/1r2kp1q/2BRr3/Q1NQB3/b5p1/K1nBN3/1NQQb3/2q1Q1R1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 g5 h5 h3 g6 h4 Bh6 gxh6 g5 Rh3 g4 Rh1 Qg5 hxg5 Kd7 Nc3 Ke7 Nb1 Ke8 b4 a5 e4 c5 d4 c4 Kd2 f3 Kc3 a4 Kb2 f2 b6 h4 e5 c3+ Ka3 h3 e6 h2 e7 c2 d6 Nd7 b5 Rh7 d5 Ndf6 b7 Ra5 b8B Ra8 g6 Ra5 b6 Bb7 g7 Ra7 Nc3 Bc6 b7 Ne4 Qe1 Ngf6 g8Q+ Kd7 e8B+ Kd8 d7 Rh8 h7 Ra5 Nge2 Ra6 Rg1 h1B Nd4 Nd2 Bd3 f1B Qg5 Rg8 h8Q Be2 Nf5 Rb6 Ne3 Rb4 Bb2 c1Q Ncd1 Qc4 B2e5 Rf8 Qh2 Bb5 Nb2 Qc2 Rd1 Ke7 d8N Qb1 Ne6 Ne4 Nc5 Nc3 Bc6 Re8 Qgh5 Ng8 d6+ Kd8 d7 Re6 Qg2 Ke7 Qd5 Qc1 Nf1 Qh6 Ne3 Qh7 Qh2 Bf1 Qc2 Be2 Bbc7 Bhf3 b8Q Bh1 Qb6 Bhf3 Ba8 Bc6 Qa5 Rb7 Bb8 Bb5 Kb4 a3 Kb3 a2 Ka3 Ba4 Rd2 Rb5 Bc6 a1Q+ Qa2 Qc1 Qd5 Kf8 Rd1 Rb7 d8Q+ Re8 Qg5 Re6 Qf4 Ke7 Qfb4 Ne4 Qbd2 Nc3 Qa2 Qh6 Bcb5 Ne4 Qdb4 Bf1 Bdc4 Rbb6 Rd6 B1e2 Bd3 Qh7 Qbd2 Nc3 Bd7 Bb7 Bc6 Ba8 Qd5 Rb7
N6Q/B5B1/b1b2N2/6pp/Kb1Qr3/R1q2Rrk/Q1R1BBqn/4R1qR w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nc6 gxf5 exf4 h4 Ne5 h5 Ng6 hxg6 Qd7 Qb3 Qe7 Qd1 Qd8 d4 Kd7 Kd2 a5 Kc2 h5 Kb3 c5 e4 c4+ Ka4 c3 b4 c2 f6 f3 g7 f2 d6 Ke6 f7 Kf6 e5+ Kf5 e6 Rh7 b6 Rb8 d5 Rb7 b5 Nh6 g8Q Rb8 b7 Be7 f8B Ng4 d7 Bb4 e7 Be1 e8R Ne5 b6 Rf7 d6 Qc7 d8R Qc3 d7 Rg7 Be3 c1Q Na3 Qc6+ Nb5 Qe4+ Qd4 Kg4 Nh3 Rg6 Qa2 Rg8 Bg7 Bd2 Nc7 Nf3 Nf4 Bb4 Na8 Nh2 Nd5 Qc3 Be2+ Kh3 Nf6 f1B Bf2 Qg2 Re5 Rh8 Rf8 Rg8 Rf7 Re8 d8R Bf5 Re1 Be4 Rc8 Bc6+ Rb5 Re7 Rc7 Rbe8 b8B Re3 b7 R8e4 Ba7 Rg3 b8Q Qa1 Rd1 Ba3 Bg4+ Kh4 Rfe7 Be8 Qac4 Rf4 Re3 Re4 Kb3 Be2 Rcc5 Bc6 Qh8 Bd3 Bf3 Kh3 Be2 Qc1 Rf3 a4+ Ka2 Qe3 Rb3 Bb4 Qcg8 a3 Rc2 Qd2 Rc3 Ba6 Kb3 a2 Rcd3 Bd5+ Ka4 a1Q+ Ra3 Qdc3 Rdg1 Bdb7 Qa2 Qaf1 Be3 Qff2 Re1 Qfg1 Bf2 Bc6+
2qk4/1KN2RbN/p1R1Q3/R1Q2n2/1n1q1rn1/2BRr1N1/B3p2N/rNQ5 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 e5 Kd3 h5 Ke4 c5 d4 h4 b4 h3 b6 c4 b5 c3 b7 c2 b6 h2 d6 f3 Kd5 a6 d7+ Ke7 f6+ Kf7 Bb2 c1N Bc3 e4 Ne2 e3 Ra5 f2 Ng3 Be7 g6+ Kf8 g7+ Kf7 g5 Bc5 Bc4 f1R Ba2 Rf2 Rf1 Nb3 Qc1 Qc7 d8N+ Ke8 g6 e2 f7+ Ke7 f8N Rh4 Nh7 Nc6 b8R Nd2 b7 Na7 Rc8 Nc4 b8Q Ne5 Ne6 Nd3 Qb5 Nh6 g8Q Ng4 g7 Rf4 Qb6 Bd6 Qc5 Qd7 Rc6 Nb5 Nc7 Re8 Qe6+ Kd8 g8N h1Q+ Rf3 Rh6 Ngf6 Qd1 Rf2 Rh1 Rf1 Nh6 Ng4 Re7 Nh2 Ng4 Qf5 Re3 Qe6 Rfe4 Rf7 Bf8+ Qcd6 Nb4+ Kc5 Rg1 Kb6 Rf1 d5 Bg7 Kb7 Nd4 Qc5 Nf5 d6 Qd4 Bb2 Qe7 d7 Rff4 Ba1 Ra3 Bc3 Re3 Bb3 Ra1 Ba2 Qe8 Rf8 Qd6 Qec4 Ke7 d8R Qf7 Q5b5 Qe5 Rd3 Qd4 Qbc5+ Kd7 Qb3 Qe6 Rf6 Kd8 Rf7 Qed7 Qe6 Qc8+
2q3n1/2rqqBNp/2R2Q1Q/1r3RQ1/N1nnB3/KBN5/Q1p3BB/4k2b w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Bc5 Rh2 Bb6 Rh1 Ba5 bxa5 Kf8 Ra2 Ke7 Ra1 Ke8 e4 Kd7 g4 Kd6 d4 f5 Kd2 c5 Kc2 a3 Kb3 a2 g6 c4+ Ka3 f3 e5+ Kd7 g7 f2 a6 c3 b6 c2 a7 f4 g5 f3 b7 Na6 b8Q Nh6 g8B Qb6 g6 Nf7 d6 Ke6 d5+ Kf5 e6 Ke4 d7 Bb7 d8Q Qe3+ Nc3+ Kf5 g7 Kg4 d6 Kg3 d7+ Nc7 e7 Qe5 e8N Qe1 Qd5 Nh6 Bf7 Ng8 Bg2 f1Q Nge2+ Kf2 Rh5 Bc6 Qb7 Rb8 Qa6 Rb5 a8B Qd1 Bf4 Qfe1 Rb1 a1N Na4 Nb3 Bh2 Nd4 Nec3 Qe7+ Rb4 Qd3 Rf5 Ke1 Qa2 f2 Bb7 Bd5 Qh6 f1Q Ba8 Bf3 Be4 Qfe2 Bb3 Qf8 Qdf6 Qee3 Bh3 Bh1 d8Q Qe7 Bf1 Qh3 Bfg2 Qc4 Qfg5 Qc6 Qdd6 Qcd7 Rc4 Qc8 Rc6 Qd3 Nf6 Ne8 Nh5 Qd1 Rfc5 Qdg4 Qdf6 Nd6 Re5 Qge6 Rf5 Q6d7 Qe5 Nf6 Qef4 Rf8 g8B Rf7 Qe5 Rg7 Bgf7 Ng8 Qgf6 Rb7 Qb5 Rg5 Ng7 Rc7 Qa5 Rh5 Rf2 Rb5 Rf5 Rb8 Qae5 Rb6 Qef4 Rb5 Q4g5 Nc4#
B2r1b1k/RQQN2n1/Q1Bb2Kb/1Q6/2N1Np2/5rB1/4q1pB/rr3BR1 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 Bh3 g5 Bg2 f5 Bf1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Ra5 Ne5 Ra2 Nf7 Ra1 Ng5 hxg5 Be7 Rh2 Bd6 Rh1 Bf8 Kf2 Kf7 d4 Kg7 b4 h5 e4 c5 f6+ Kh7 g6+ Kh6 e5 a5 f7 Kg7 b6 c4 e6 c3 d6 a4 d7 a3 b5 h4 e7 h3 e8B h2 b7 a2 b8Q c2 b6 Qe7 d8B Rh7 d5 Ra6 d6 Qc7 b7 Ra3 d7 Rh8 Nc3 Qc5+ Be3 c1B Qd3 Qa7 Bh4 Ra4 d8Q Bb4 f8N Bd6 Qa6 Re4 Nd7 Nf6 Bg3 Rb4 Qdc7 Bc5 Ne4 Ba3 Qa8 Rb1 b8Q Be7 Qbb5 Bad6 Q8b7 Nh5 Bb6 Kg8 g7 Bf8 Bc5 Kh7 g8B+ Kg7 Bd5 Kh7 Qba4 Ng7 Q4b5 Rg8 Bc6 Kh8 Bf7 Qa8 Bfd5 Qb8 Nd2 Qc8 Nh3 Qe8 Rg1 h1R Ng5 Rh3 Nc4 Qe4 Rh1 Qd3 Ne4 Qe2+ Kg1 f2+ Kg2 Qc2 Bh2 g3 Kf3 g2+ Kg4 Qe2+ Kg5 Rf3 Rg1 Rb4 Rc1 a1B Kg6 Rb1 Rc2 Bf6 Ra2 Bg5 Bd4 Bh6 Bf6 Bfe7 Bh4 Rd8 B4g3 Bf8 Qab6 Rd1 Ra7 Ra1 Q6a6 Qa2 Bd3 f1R Be2 Rfe1 Bf1 Qe2 Qb7b6 Ne8 Ba8 Red1 Qbb7 Ng7 Bc6 Rdb1
3Q4/Bqr5/N3R1K1/p1Nb2b1/r1B2p1r/k1n1B1N1/rR1Qb1Q1/3NB2B w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 Kf2 Kd7 b4 Kd6 d4 c5 e4 a5 g6 h5 g7 g3+ Kf3 c4 e5+ Kd7 Ke4 h4 e6+ Kd6 f6 c3 Kf5 h3 b6 g2 f7 c2 b7 h2 b8B+ Qc7 b5 Rh5+ Kg6 Rh8 b6 Bd7 e7 Rh4 e8B Be7 f8N Rh7 b7 Rh4 Ba7 Qb8 Ne6 Rh7 Ne2 g1R+ Ng3 Rg2 Ra2 Rh4 Bc4 Bf8 Nc5 Be6 Bc6 Nf6 g8Q Nh7 Rb2 Bg4 Be3 c1R Re1 h1B Qd2 Rc2 Nc3 Be7 Nd1 Nf6 Re2 Qc7 b8N Ne4 Nba6 Bg5 Re1 Re8 Ba8 Be2 Bb7 Ke7 d6+ Kd8 d5 Nc3 d7 Ke7 d8B+ Kd6 Ba8 Re4 Bf6 Qb7 Be7+ Ke5 d6 Rf2 d7 Rd4 d8Q Bd5 Bd3 Ra4 Bc4 Rfh2 Rb6 Rca2 Rb2 Rh7 Bf8 Rd7 Bg7+ Kd6 Bgd4 Rh3 Bf2 Rh4 Bde3 Bg4 Re2 Kc6 Be1 Rc7 Qe7 Bgf3 Qe4 Bg4 Qg2 Bgf3 Qd8 Bg4 B3f2 Bgf3 Re4 Be2 Be3 Bg8 Bb3 Kb5 Qh1 Qb8 Re5 Bgc4 Re6 Qb6 Be4 Bd5 Qh3 Qb7 Bh1 Bh6 Qg2 Bg5 Nb8 Kb4 Bc4+ Ka3 Nba6 Bef3 Rf6 Bg4 Re6 Be2
4N2k/pQ3QR1/QBpB1Knb/3N1Qqb/bNQ4N/1r1n4/B1n4R/1b6 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 c4 d5 cxd5 Bb7 exf5 Bc8 f4 gxf4 h4 Bd7 g4 Na6 g5 Rb8 h5 Rb6 Qb3 Bc8 Qd1 Rg6 hxg6 Bg7 Ra2 Bh6 Ra1 Bf8 Kf2 e5 Kf3 h5 Ke4 f3 d4 h4 b4 f2 d6 h3 d5 c6 b6 h2 b5 Rh5 g7 Kf7 f6 Rh4+ Bf4 Nb4 d7 Nc2 Kf5 e4 d6 e3 b7 e2 b8N e1N b6 Qe7 b7 Nf3 Qd4 Rh5 Nc3 Rh7 Na6 Qe1 b8Q Qe7 Nb4 Qe2 Qb7 Qa6 Qdb6 Qc4 Q6a6 Nfe1 Nf3 Na3 Ncd5 Rh3 Nh4 Re3 Bd3 f1B Bb1 Ng2 Ba2 Re6 d8N+ Ke8 g6 Re3+ Ne6 Qc1 Kg5 Ne7 Nec7+ Kd7 g8Q Ne1 f7 Rb3 g7 Bb5 Rb1 Ba4 Ne8+ Ke6 d7 Qe3 Rg1 h1B d8B Be4 Rb2 Bb1 Bb6 Nd3 Rh2 Nc2 Qh7 Qd2 Rg3 Qg2 Bd6 Qg1 Qh5 Bd7 Qf3 Qc1+ Qf4 Bc8 g8Q Bh6+ Kg4 Qe3 Qfc4 Qc1 Qg7 Qd2 f8Q Bd7 Nef6 Be8 Qg5 Bf7 Ne8 Bg6 Qff4 Bf7 Qh5 Bg6 Qfg5 Kf7 Qf5+ Kg8 Qf7+ Kh8 Qhf5 Bh7 Kh5 Qc1 Rg7 Bg6+ Kg4 Qd2 Kf3 Qg5 Ke4 Nf4 Ke5 Nd3+ Ke6 Bh5 Nf4 Qg4 Kf6 Ng6 Nfd5 Qg5+
5QQN/2KR2bq/1NR2QQ1/2B2Q2/2rp1q2/1k1b2rp/4B1q1/3NqnBB w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Nb3 g5 Na5 g7 Nc4 Bd2 Ne5 Bc1 Ng6 hxg6 Qc7 Rh6 Qb6 Rh1 Qd8 Kf2 d5 Kf3 Kd7 Kf4 Kd6 b4 a5 c4 h5 b6 d3 f6 d4 c5+ Kd5 b5 Kc4 Ke5 a4 b7 a3 b8Q e6 b6 a2 c6 h4 f7 h3 b7 Qd7 c7 Qd8 Be3 Nf6 g8B Ra6 g7 Rc6 g6 Qd7 Be2 Rh6 Nf3 Ne4 Bg1 Kb4 Qf1 d2 Nc3 d1Q Nh4 Be7 f8B Qb1 Qf5 Qe8 Nd1 Bd7 c8N Ng3 Nb6 Rc4 Qd8 Nf1 b8Q Bb5 Bf7 Qc2 g8Q Qc6 g7 Qg2 Ng6 Kb3 Nh8 Bf6+ Kd6 e5 Bd5 e4 Qf7 e3 g8Q Qb1 Q7g6 Bg7 Qdf6 Qc2 Rc1 a1Q Bc6 Qd2 Kc7 Qb1 Bc5 Rh4 Be4 Rg4 Qbf8 Rg3 Bd5 Qbe4 Ra1 Qh4 Ra7 Qh7 Rh2 Bc6 Bdf3 Be4 Rh1 Bd3 Rh2 Qf2 Bh1 Qf3 Rf2 Qg2 Rf4 Qc1 Re4 Qd2 Re6 Qc1 Rc6 Qd2 Bh5 e2 Bf3 e1Q Be2 Kc2 Ra8 Qdh6 Rd8 Kb3 Rd7 Qf4+
RN1bR3/2n4B/p2B2b1/2Q2R1N/1bR1r3/r1qN3b/K1BkpBQ1/1Rq5 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 b4 Kd7 d4 Kd6 Kd2 h5 Kc2 e5 Kb3 c5 f6 c4+ Ka2 c3 g7 f3 g6 c2 b6 f2 b5 a6 b7 e4 b8N e3 f7 h4 b6 h3 b7 h2 Bd3 f1Q Ne2 Qe1 Nf4 e2 Na3 Be7 f8R Bf6 Nh5 Ne7 g8Q Qg3 g7 Qg6 Nc4+ Kc7 Qg1 Qf7 Nb2 Kb6 Rb1 Ka5 Be3 Kb4 Bf2 c1B Bc2 Kc3 Nd3 Kd2 Qg2 Qfe8 d6 Ba3 d7 Bb4 d5 Qc7 d8R Qc3 d6 Bh3 d7 Nd5 Rhc1 Nc7 Q8d5 h1B g8B Qe3 Rde8 Bd8 Qc5 Rh6 Rf3 Re6 Bh7 Re4 Rf5 Qg5 Nc6 Qf4 b8R Ra7 Ra8 Rb7 Nb8 Qg5 Bg3 Qh6 Bd6 Qe3 Rcf1 Qg1 R1f4 Qc1 Rg4 Ba5 Rgf4 Rb3 Rg4 Bb4 Rgf4 Bg5 d8B Bh4 Bf6 Bg5 Bd4 Bd8 Qg1 Bf3 Bf2 Bfg4 Qg2 Bf3 Ng3 Bh5 Rh4 Bg6 Nh5 Re5 Rd4 Re4 Rc4 Ra3#
Q2R2R1/6pK/bNbnBb1N/2kNN1Bn/1q2b1Qb/5qRN/1p6/3BR3 w - - 0 1 legal: proof: e4 d5 g4 Kd7 b4 h5 gxh5 a5 c4 axb4 cxd5 Rh6 d6 Kc6 d7 Rh8 f4 b5 d4 Rh6 d5+ Kc5 e5 Rd6 exd6 e5 Qb3 Ra3 Qa4 e4 Qd1 Rg3 Bd2 Rg5 Bc1 Re5 fxe5 Qf6 Qg4 Qg5 Qd1 Qd8 Kf2 f5 Ke3 c6 Kf4 b3 a4 b4 h4 e3 a5 e2 e6 e1B a6 b2 h6 b3 a7 Nf6 Kg5 f4 Kg6 f3 a8N f2 h7 Ng4 h8N Nh6 h5 Ng8 e7 Bb4 e8B Qb6 d8Q Na6 h6 Nf6 h7 Ne4 d7 Be1 d6 Nb8 Bc4 f1B Nf7 Qb4 h8N Bh4 Be6 Bca6 Bg5 Bfb5 Nc3 b1B Kh7 b2 Nh6 Ng3+ Ng6 Be7 Nh3 Nf5 Qg4 Be4 Nb6 Bf6 Ra3 Ba4 Qc8 B4b5 d8R Nd7 Rha1 Bf3 Rf1 Be7 Rh1 Nf6+ Kh8 Nh5 d7 Bf6 Qa8 Kd6 Rb8 c5 Rb1 c4 Kh7 Be4 Ne5 Kc5 Ncd5 c3 Re1 c2 Rg3 c1Q Rc8+ Bc6 Rb8 Qd1 Rc8 Qf3 Bg6 Ne7 Rg8 Bb1 Bc2 Nf5 Bd1 Be4 d8R Nd6+
2b5/Q3rk2/7p/2bb1bQ1/2Rpq1BB/B2Rb2R/1bNR1rB1/K2R2QN w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Qd2 f4 Qd3 Nc6 Qd1 Nce7 h3 Nf5 gxf5 g5 h4 g4 Ra6 Nh6 Ra4 Nf7 Ra1 Ng5 hxg5 Bh6 Ra5 Bg7 Ra1 Bf8 Kd2 a5 b4 d5 e4 h6 c4 a4 Kc2 g3 Kb2 d3 f6 d2 f7+ Ke7 c5 d4 e6 f3 g6 f2 b6 g2 b7 Qc7 b8R Ra5 b5 Qb7 g7 Qd7 g8Q Qc7 e5 Qd7 b6 Ra8 c6 Bb7 c7 Bg7 c8R Bf6 Ne2 g1B Bg2 f1B Qg5 Rg8 Na3 Ra6 Ng3 Rg6 Rh3 Be2 Nc2 Qd5 Rc4 Be3 Qg1 d1B Nh1 Bc6 b7 a3+ Kb1 Qd8 f8B+ Ke8 e7 a2+ Kb2 Kf7 e8R Bg4 Ba3 Bf5 Rb1 Ra7 Ka1 Be7 e6+ Kg7 Rb2 Bc5 e7 Bdg4 Rf8 Bc8 e8B Bgf5 Bd7 Qe8 Rb3 Qe4 Rd3 Bd5 Ra8 Qe6 b8Q Qe4 Rf6 Rb7 Qa7 Kg8 Rb6 Kf7 Rb1 Rf6 Bd2 Rc7 Rd1 Rb7 Be1 Rc7 Kb2 a1B+ Ka2 Bc3 Bh4 Bcd2 Ka1 Bc1 R3d2 Rb7 Rb8 Rc7 Rb3 Rb7 Rbd3 Rc7 Ba4 Re7 Bb5 Bg4 Bd7 Rf2 Bf3 Bf5 Bg2 Bg6 Bg4 Bh7 Ng3 Bhf5 Nh1 Bb2+
3R4/BK1p1n2/4Q1Q1/3R3N/bq3r1B/1B2qB2/1bN1ppnn/1kNNB1Q1 w - - 0 1 legal: proof: d4 b5 e4 c5 g4 cxd4 a4 a5 axb5 h5 gxh5 g5 f4 f5 fxg5 f4 Qd2 Ra6 Qd3 Rf6 Qd1 Rf5 exf5 Rh7 Qg4 Rh6 Qd1 Rh8 Kd2 Kf7 Kd3 e5 Kc4 e4 h4 a4 b4 d3 h6 d2 f6 Kg6 f7 Kf5 h5 f3 h7 a3 g6 e3 g7 Ke4 b6 a2 Kb5 f2 c4 Qh4 b7 Qg5+ Kb6 Kd4 h6 Nc6 b8N Ke4 c5 Na5 c6 Ne7 g8N Qg2 c7 Nb7 b5 Qg7 Rh5 Nc5 Nc6 Qg3 Nb4 Qf4 Nf6+ Kd4 Ne2+ Kc4 Nbc3 Qh2 Rd5 Na6 Nc2 Kb3 Nh5 Rg8 h8Q Qg3 h7 Nb4 Qf6 Rg7 h8Q Nbc6 Qhh6 Rg4 Qhg6 Ba6 c8B Nd4 Qe6 Rf4 Bb7 Bg7 f8B Nec6 Be7 Nd8 Bh4 Nf3 Bg2 Qg5 Qg1 d1N Bd2 Kb2 Nc1 e2 Be1 Nh2 Bf3 Nf7 Ka7 Be5 b6 Bb5 Ba8 Qe7 b7 Qb4 b8B Ne3 Kb7 Ng2 Ba7 Ba4+ Kc8 Qd6 Bc6 Qc5 Kb7 Qe3 Bb5 Bf6 Bc4 Bg7 Nb3 Bf6 Rc1 a1Q Nd1+ Ka2 Ncd4 Qe4 Rc2+ Kb1 Nc1 Qc3 Bb3 Qd2 Rc8 Qe3 Nc2 Bb2 Rd8 Qb4+
2k1N3/b3R3/pnb2Nr1/R2Bn3/7r/N1n1B1K1/p2Q1pR1/QrNR1BN1 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 Be6 a4 bxa4 g4 Bc8 b4 h5 gxh5 a6 b5 Qd6 b6 Qc6 Qc2 Qb7 Qd1 Qa7 bxa7 Bd7 Qc2 Bg4 Qd1 Bc8 Kf2 Kd7 d4 c5 h4 g5 e4 f5 d6 a3 d5 c4 e6+ Kd8 h6 f4 h5 f3 h7 c3 d7 c2 e7+ Kc7 d8N g4 e8N+ Kd7 h6 Bg7 d6 Bb2 e5 Bb7 e6+ Kc8 e7 Bc3 Be3 c1N Kg3 f2 Nc6 Be1 Nd4 Be4 Nde2 Bc3 Rh2 Nd3 Nc1 Ne5 Nf6 Bf3 e8N Bc6 Rg2 Ne7 Qd2 Nbd7 Ra2 Rb8 a8B Nb6 d7+ Kd8 Ra1 Ned5 Bb7 Bd4 Ba8 Rf8 h8R Nc3 Rh7 Rh8 Re7 a2 h7 Rb7 Na3 Rb8 Rb1 Rb7 Rb5 Bc5 Kf4 g3 Ra5 Rb8 Rh2 g2 Kg3 Nbc4 Bb7 Ba7 Ba8 Rb1 Bb7 Rf8 h8Q Nb6 Qg7 Rh8 Ba8 Bb5 Bd5 Rh4 Qh7 Rb3 Qb1 Bc6 Qa1 Rb2 Nf3 g1R+ Rg2 Rgh1 Ng1 Rb1 Ng7 Kc7 Nge8+ Kb7 Nc7 Rh6 d8R R1h4 Rdd7 Kc8 Nce8 Rg6+ Bg5 Rb5 Be6 Nca4 Qdb2 Rgh6 Be3 Nc3 Rd1+ Bd7 Qd2 Rb1 Bf7 Bc6 Bd5 Rg6+
Q6b/5QNb/p1bR1B1k/B2bQRNr/2npn3/1K2p3/1r1B4/R1RQ1Q2 w - - 0 1 legal: proof: d4 b5 h4 h5 e4 c5 dxc5 f5 exf5 Qc7 a4 Qf4 axb5 Qg5 hxg5 g6 Be2 h4 Bh5 gxh5 g3 Ba6 g4 Bc8 Kd2 Kf7 Kc3 Kg7 f4 e5 b4 d5 f6+ Kg6 b6 h3 b7 d4+ Kb3 e4 c4 h2 f7 e3 b5 a6 c6 h4 f5+ Kh7 b6 h3 g6+ Kh6 f6 Bc5 f8R Be7 g7 Bb4 g5+ Kg6 c7 Kh7 c5 Ne7 g8R Ra7 g6+ Kh6 c6 Ba5 g7 Kh7 f7 Ng6 Bd2 Bb4 Ne2 Ba3 Nbc3 Be7 Nf4 Ra8 Ne4 Kh6 Nh5 Bd6 Ng5 Bd7 c8Q Bg3 c7 Nf4 Qe8 Ne2 c8Q Bh4 Qe5 Nc6 b8B Ng3 b7 Rh7 Bc7 Bf5 b8B Ne4 Bca5 Bg6 Rf1 h1B Rh8 h2 g8Q Bg2 Ng7 h1B Rd8 Ra7 f8Q Ra8 Bbc7 Rb8+ Qb7 Bg3 Rf5 Bf4 Rd6 Bf3 Qeb5 Ne5 Qgf7 Nc4 Qa8 Be5 Bd8 Bf6 Rg8 Rh8 Q8e8 Bh7 Qe5 Rb7 Be7 Rb6 Rc8 Bfg2 Ka4 Bf3 Qbb1 Rb2 Qd3 Bfg2 Q3f1 Ng3 Rcd8 Nb6+ Ka3 Bg6 Nf3 Kh7 Ne8+ Bg7 Ng1 Bb7 Bg5 Bhd5 Rc8 Ne4 Rcc1 Bbc6 Nf3 Rb1 Bf6 Rb2 Qb3 Nc4+ Kb4 Kh6 Ng5 Kh5 Qab7 Rh6 Qb8 Bh8 Ng7+ Kg4 Qa8 Rh3 N7e6 Kh5 Ng7+ Kh6 Qaf8 Ra2 Qa8 Rh5 Qbd1 Bh7 Kb3 Rb2#
1r2RBnB/N6N/8/1QQN4/N1n1K1nk/1qb1bbqB/1NR5/2rBQrq1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 g4 Kg5 b4 a5 d4+ Kf6 b6 e5 g5+ Kg7 b5 h5 f6+ Kg6 f7 c5 d6 a4 d7 a3 d5 h3 d6 h2 b7 a2 b6 c4 Ke4 h4 f4 h3 f5+ Kh7 g6+ Kg7 Nf3 Kf6 g7 c3 Ne1 c2 Bb2 Kg5 f6 c1R Nd3 Nh6 g8B Rc5 Nc3 Nc6 b8N Na5 b7 Nc4 Na6 Qe8 d8Q Qa4 b8Q Bg4 d7 Qb3 Nc7 Kh4 Qb5 Rb8 Rc1 a1B Na4 Be2 Qe7 Rc6 Bh7 Ng8 d8N Bh6 f8N Be3 f7+ Rf6 Bd4 Bc3 Rc2 Rc8 Rg1 h1N Qec5 h2 Bh3 Rf1 Nd5 Rc7 Ndb2 Nf2+ Kf5 h1Q Nc6 e4 Na7 Qg2 Qe1 Qg3 Bg6 Rc8 Bh5 Rb8 Bf3 Ng4 Nh7 Rc8 f8B Rb8 Nhf6 Rh6 Nh7 Rc6 Bdg7 Ra6 Rh1 Bd3 Rhh2 Bf2 Qd1 Qg1 Nab6 e3+ Kf4 e2 Bh8 Ra1 N6a4 e1Q Re2 Rc1 Re8 Bfd4 Rc2 Qef2 Qe2 Qe1 Qe4 Qeg3+ Kf5 Bf2 Bd1 Bfd4+ Ke6 Bf2 Qe1 Be2 Kf5 Be3+ Ke4 Bf3+
1QB4n/r4rNr/q2Nn1NR/n2N3n/1R1Q3Q/k1b1N1n1/2bRQBb1/K7 w - - 0 1 illegal: No possible last move
nB1k3B/2rr1Qbb/5n2/b3K1NR/b1B3BB/4R1rq/NQ1N2nR/1Rb5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 Kf3 h5 Ke4 c5 b4 e5 g4 c4 d4 a4 f4 a3 f6 a2 g5 c3 d6 h3 b6 h2 d7+ Kf7 d5 h4 b5 h3 d6 c2 b7 Be7 g6+ Kf8 g7+ Kf7 f5 Qb6 d8R Ra7 d7 Ra4+ Bc4+ Qe6 b6 Ba3 Re8 Ra5 d8B Rc5 Qd5 Na6 b8Q Bd7 b7 Ba4 Nc3 Bb4 Nf3 Rh7 Nd2 Nc7 Rb1 a1B Bb2 c1B Na2 Na8 Be2 Rc2 Qc4 Ba5 Qcc7+ Qe7 Bg4 Rc5 Bd4 Rc2 Kd5 e4 Qf4 e3 Qbe5 e2 b8B Qa3 Re6 Nh6 g8B+ Kf8 f7 e1N Qh8 Qg3 Re3 Qh4 Bb2 Rc7 Be5 Bab2 Qf6 Bbc3 Qb6 Ba1 Bh8 Bf6 Qb2 Be5 Bh5 Ng4 Bg5 Bf6 Ke4 Ke7 f8N Rg7 Nh7 Kd8 Bc4 Rge7+ Kd5 Bg7 f6 Qg3 f7 Qh4 Rg1 h1R Rg2 h2 Rf2 Qg3 Bh4 Qh3 Rg2 Rg1 f8R+ Be8 Qf2 h1B Rf5 Ba4 Rg5 Rf7 Qf1 Rfe7 Qf7 Red7+ Ke6 Nf6+ Bg4 Rc5 Rh5 Rcc7 Rge2 Rg3 Rh2 Be4 Ke5 Ng2 Ng5 Bh7
N2R1B2/b1r5/bNR1QR2/2qBN1b1/1n1N2K1/Qq1q1q2/Qq5Q/n2k1rQ1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 b4 Ke5 g4 Kd4 d6 a5 g5 h5 d7 c5 g6 e5 g7 a4 f6 c4 f7 h3 b6 h4 b7 e4+ Kg4 e3 f4 e2 b5 Kd3 f5 h2 b6 c3 f6 a3 Bg2 e1Q Nf3 h3 Rf1 c2 Nc3 h1Q Nd5 h2 Nc7 a2 Ba3 Qde8 Rc1 Ra5 Na8 Bc5 f8N a1Q f7 Rh5 Ne6 Qe3 d8Q+ Qd7 f8Q Na6 b8Q Rh7 b7 Ne7 g8Q Nd5 Qde8 Qhg1 Qgf7 h1Q Qh2 Qh8 b8N Qb2 Bb4 Qd8 Nd7 Ba7 Ndb6 Ra1 Qa4 Qd6 Qa2 Nc5 Q8e7 Ba6 Qef8 Ke4 d4 Nb3 Rf2 Qec3 Ne5+ Ke3 Rf6 Qd8 Qf1 Kd2 Q8e7 Qe3 Qfg1 Qf8 Qa3 Qd3 Qd7 Qc8 Bf8 Nb4 d5 Rb1 d6 Na1 Qg8 Q8c6 Qe8 Rc7 Nd4 Qa4 Qga2 Qab3 d7 Qcc4 Rcf1 c1B Rc6 Qc5 Bd5+ Qg2+ Kh5 Qf2 d8R Qg2 Rff6 Qf2 Ne2 Qff3+ Kh4 Kc2 Qd7 Bd2 Qe6 Rf1 Nd4+ Kc1 Rf5 Kd1 Rf6 Qf2+ Kh5 Bg5 Kg4 Qff3+
2q1R1Q1/2N2n2/n3BbBk/QKR2rb1/3N2QN/n1BN3q/4Qr2/b1Qbb3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kc4 c5 g4 h5 f4 a5 b4 e5 d4 h3 g5 h4 f6+ Kg6 d6 a4 d5 e4 b6 h2 f7 a3 f5+ Kg7 b5 a2 d7 e3 f6+ Kh7 g6+ Kh6 g7 h3 b7 Ra5 d6 Kh7 b6 e2 Bb2 e1B Qe2 Bg3 Nd2 Be1 Nb3 Bc3 Nf3 Ra4+ Kb5 c4 Nc5 Be5 Re1 a1B Nh4 c3 Nd3 c2 Bc3 Na6 b8N c1B b7 Bcb2 Nc6 Bf4 b8Q Bg5 Nd4 Ra2 Qc7 Nh6 Qg4 Bb7 Re8 Qc8 d8Q Bf3 d7 Bb4 f8Q Nf7 Qfe7 Rf8 g8B+ Kh6 Qe2 Ba5 Rg1 h1N Qc4 Bb4 Qa5 h2 d8N Ng3 N8e6 h1Q Nc7 Nf5 Bg2 Ne3 Rc1 Qh3 Qc5 Ba8 Be4 Nc2 Bg6 Bf3 Qc4 Nd8 Be6 Nf7 Qf1 Bd1 Qfe2 Bd6 Qc6 Bg3 Qc5 Be1 Qc4 Nh8 f7 Na3+ Kc6 Rg8 f8Q+ Rg7 Qg8 Rf7 Kb6 Rf5 Rc2 Bbc1 Qc6 Bf6 Qh1 Bcg5 Qhf1 Nb1 Qff4 Nf7 Qc1 Rf3 Kb5 Rb2+ Bb4 Rf5+ Rc5 Rc2 Bc3 Ra2 Qee4 Raf2 Qee2 Na3+
K1Nb1N1r/5b2/b6B/1brrn1q1/q1QR3R/N4B1N/2QQ1bRN/k5nQ w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 Kd5 c4 f6 c3 d7 h3 f7 a4 b6 e4 f5 c2 b7 Kb3 f6 a3 g6 e3 g7 e2 Nf3 e1B Be2 h4 Nh2 a2 Bf3 Bd6 f8N Rh6 f7 Qc7 d8R Bf5 Ne6 Bg6 f8N Bf7 Na3 Rh8 Bh6 Nc6 b8N Ne5 Nc6 Qe7 Na7 Qg5 Nc8 Bf2 Rg1 Bc7 Rg2 Ba5 Qh1 c1R Kd6 Rb8 d5 Rb5 Nf4 Ne7 g8Q Rcc5 Qh7 N7c6 Qc2+ Kb4 Re1 a1Q Re4+ Nd4 Rd7 Bd8 Qc4+ Ka5 b4+ Ka4 Qc2+ Nb3 Qc4 Nc1 Rd4 Ne2 Rb7 Bg6 Rh7 Qa2 Qc2+ Qb3 Qc4 Ng1 Qc2 Bf7 Qc4 Ra5 b5+ Qb4 b6 Rab5 b7 Ra5 Qa6 Kb3 b8Q Ka2 Qc7 Qa4 Qc4+ Ka1 Qc6 Be7+ Kc7 Bd8+ Kb7 Rab5+ Nb6 Ra5 d6 Rab5 Nf1 h2 d7 h3 Qe4 Rd5 Qec2 Rbc5 Nc8 Ne2 Qg1 h1B Kb8 h2 Nh3 Ba5 d8Q Bb6 Qd7 Bd8 Rgg4 Bg2 Qh1 Ng1 Rg7 Nd3 Rh4 Ne5 Bg4 Be4 Bf3 Bf5 Qd6 Bd7 Rg6 Bb5 Rg8 Ba6 Ka8 Rb5 Qdb4 Ra5 Qbd2 Rac5 Qg2 h1B Qh2 Bg2 Qh1 Qg6 Rg7 Qg5 Nh2 Bf1 Rg6 Qh5 Rg2 Qg5 Q4b3 Bfb5 Qcc4 Ng4 Qbc2 Ne5
Qr2b1B1/1Qnk2Nn/Q3n1Qr/R3KNb1/1B3NNb/5R2/2R2q1b/q4Nb1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 Kf3 c5 Kf4 h5 d4 h3 b4 c4 g4 h2 g5 h4 b6 h3 b5 a4 b7 a3 b6 c3 f6 c2 f7+ Kd7 d6 e6 d5 a2 g6 Ra6 g7 Rh5 Bc4 Rg5 Qe2 Rg2 Nf3 Rg1 Bd2 c1B Nd4 Ra3 Nf5 Re3 Bb4 Be7 f8Q Na6 b8Q Rd3+ Nd2 Rc3 b7 Bh4 Qa8 Nf6 g8N Nh7 b8Q Rb3 Ngh6 Nc7 Qbb7 Qf6 Qg8 Rg6 Ng4 Rh6 Qg6 e5+ Ke4 Qf7 Nf1 Bcg5 f4 Qf6 Rc1 a1B Rc2 Bd4 Rg1 h1N Rg2 Kd8 d7 h2 Ra2 Qf7 Ra5 Bg1 Qd3 Rb2 Rc2 Rb1 Bb3 Qf8 Qda6 Nf2+ Ke3 e4 Kd4 h1Q Ke5 e3 N5g3 Qf3 f5 Qg8 f6 e2 f7 e1B f8R+ Ne8 Qba7 Bgd2 Ba3 Nh3 Rf6 Qg2 Rf3 Nc7 Ba2 Rb7 Bb4 Rb8 Q7b7 Bdg5 Bb3 Nf4 Ba2 Qf7 Bc4 Bc5 Bb3 Ke7 d8N Bd7 Ne6 Be8 Ng7 Kd8 d6 Bg1 N3f5 Beg3 d7 B3h2 Nd6 Ke7 d8N Qf2 Ndf5+ Kd7 Ba2 Qb3 Nde6 Qb1 Bc4 Ne2+ Nf4 Nd4 Bb3 Qa1 Bg8 Ne6+
1q1n1B1K/N1rb2r1/1R1r1Nbk/Br1B2q1/N2N1Q1b/r2Q1R2/2Q2n2/4N2Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 Ke5 a5 b4 c5 g4 c4 f4 e6 d4 a4 b6 h3 d6 h2 b5 h4 d7 c3 b7 a3 f6+ Kh7 b6 c2 f5 a2 g5 h3 f7 Bg7+ f6 Kg6 f8B Rh4 d5 Bh8 d6 Bg7 Bc4 Nh6 Bd5 Rh5 Bd2 c1R Nc3 Ra7 Nf3 Qc7 d8Q Qc6 d7 Qb5 Ne1 Ra3 Rf1 h1B Qc2+ Be4 Rb1 a1Q Rf3 h2 Qc7 h1R d8Q Bd7 Qc6 Qa2 Na4 Rg1 Ba5 Qab3 Rb2 Kh7 Rb1 Bg6 Rb2 Na6 b8N Nc5 b7 Ne4 Rb1 Nf2 Rb2 Nf5 Rb1 Bh6 f7 Ne7 Kf6 e5 Rb2 e4 Rb1 e3 Rb2 Be4 g6+ Kh8 g7+ Kh7 g8N e2 Rb1 Rg7 Rb2 Bg6 Rb1 Qc5 Rb2 Qa2 Rb5 Qb1 Rb6 Bg4 Qdd6 Bd7 Qf4 Qbb5 Qd3 Qe3 Qcc2 Nc6 Qfe4 Nd8 Nc6 Bf4 b8Q Bg3 Qbf4 Rg5 Na7 Bh4 Qh2 Qd2 Qh1 Qf4+ Qf5 Qb8 Qf4 Qc5 Nh6 Rd1 Nf5 Qe3 Nd4 Kh6 Bc5 Qc1 f8N Qd2 Nh7 Rc1 Ng2 e1R Bf8 Red1 Ne1 Qe3 Qcb3 Rc3 Qbc2 Rc7 Be6 Rc4 Qfe4 Kh5 Ndb5 Rd2 Qdb3 Rd6 Nd4 Re7 Qbd3 Rc7 Qe5 Re8 Kg7 Re7+ Kh8 Rg7 Nf6+ Kh6 Qee4 Rb5 Bd5 Qg5 Qg4 Qb7 Qf4 Qb8
1qQ3B1/q4QN1/3rbN1R/1krQ4/1rq2r1R/r3n1bN/RK2R1nB/5RN1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 a5 b4 h5 d4 c5 Kd2 e5 Kc2 e4 g5 c4 d6 e3 b6 Kc6 d5+ Kb5 f6 a4 b7 a3 g6 e2 g7 e1R d7 h3 d6 h4 f7 h2 f5 h3 f6 a2 Kb2 Rh4 Nc3+ Kb6 b5 Ra4 Nce2 Ne7 g8N Re4 Nf4 R1e3 Qd5 Nbc6 b8R+ Ka5 Rb6 Nf5 Bd3 Nce7 Bc2 Rg3 Bb3 Ne3 Rc6 Kb4 b6 N7f5 b7 Nh4 b8R+ Qb6 d8N Be6 d7 Nhg2 Ra8 Bd6 f8R Qb8 f7 Rg6 Rb1 a1R Nf6 R1a3 Re8 Rd4 f8Q Qa7 Qf3 Kb5 Qf7 Rd5 Ra1 Rc5 Qd5 Bc7 Bd2 Bb8 Rf1 c3+ Kb1 c2+ Kb2 c1R Ba5 Rcc4 Bc7 Bg4 Nde6 Re4 Nf8 Be6 d8Q Red4 Qc8 Rh6 N4h5 Rf4 N8h7 Rg6 Ng7 Rh6 Nf3 Rg6 Nhg5 Rh6 Rhg1 h1Q Ra6 h2 Nh3 Rg6 Bd6 Bc7 Rh8 Qb8 Rh4 Rh6 Re1 Rg6 Rgf1 Qg1 R8a7 h1Q Re2 Qf2 Nfg1 Qh2 Qd4 Qhg3 Qd5 Qg4 Rd2 Qge2 Rc6 Qc4 Re2 Rfg4 Bh2 Bg3 Bc2 Rh6 Bh7 Rf4 Bg8 Rh5 Qf3 Rhd5 Q3h5 Rd8 Qd5 Rd6 Rd7 Bf5 Qh5 Nc2 Qe5 Rd2 Kb1 Qd3 Ng4 Rd5 Rh6 Be6 Nf6 Qfa7 Qf7 Qc4 Kc1 Rc5 Rd3 Ra2 Ra3 Rd6 Qd5 Nce3+ Kb1 Rb2+ Ka1 Rb3 Raa2 Rba3 Kb2 Rb4+
b2b4/qrB4n/4bNRn/4QB1R/q2b1Q2/rN5R/RR2Nr1B/1b1NK2k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 g5 a5 b6 c5 b7 e4 f6 a4 f7 a3 b5 c4 b6 c3 g6 a2 f5 e3 f6 c2 g7 e2 Nc3 h3 Qd2 h2 Nd1 h4 Bh3 Be7 f8N Bg4 f7 Be6 Bf5 h3 Nd7 Qe8 f8N Bd8 Nh7 Nh6 g8R Ra3 Nc5 Nd7 b8R Nf6 b7 Qa4 Rg6 Rf8 Nb3 Rf7 Bb2 c1R Qg5 Rc2 Qf4+ Kd7 d6 Kc6 d7 Kd5 Bc3 Qa7 Ba5 Rb2 Bc7 Rb1 Kf2 e1B+ Kf1 Ba5 Ne2 Bb6 Ke1 Bc5 Rc8 Rb2 b8Q Rf8 Rb1 a1Q Qb5 Rf7 Ra8 Rc2 Rb2 Qa2 Rhg1 h1B R1g3 h2 Rh3 Be4 Be5 h1B Qa5 Bb6 d8B Rb7 Bdc7 Rd2 Qc3 Bb1 Qce3 Be7 Bed6 Bd8 Qee5+ Kc4 d5+ Bd4 Be7 Rc2 d6 Be4 Rh5 Kd3 d7 Rd2 Bed6 Qa4 Ng3 Rf2 Ne2 Qa1 Ng5 Nh7 Ra7 Bf6 d8R Qa2 Rh8 Bd8 Bh3 Bf3 Ne4 Bh1 Bf5 Qa1 Qh2 Bf3 Nf6+ Be4 Ndc3 Ke3 Nd1+ Kf3 Ra8 Rb4 Ra5 Ba8 Qh4 Rb7 Qhh2 Ng5 Qhf4+ Kg2 Rh3 Nf7 R8h5 Nh6 Rc5 Qa7 Rcc2 Qa4 Ra2 Qa7 Rcb2 Qa4 Bg4 Nh7 Bf5+ Ng4 Qb5 Qa7 Qg5 Ra5 Ra4 Qa2 Bh2 Kh1 Qf4 Nh6 Qbe5 Qa3 Nc5 Qb3 Raa2 Qb5 Nb3 Ra3 Rg8 Qc6 Rg6 Qca4
1Rq2n2/rr1Q2B1/3R2RK/4R1bB/bkN1nB2/6Q1/2Qr1N1Q/b2qq1Qr w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 Kg5 h5 g4 a5 f4 e5+ f6 e4 b4+ Kd4 d6 c5 d7 a4 b6 a3 b5 h3 f5 c4 b7 Kc5 d4+ Kb4 b6 e3 d5 a2 d6 h4 Na3 e2 Bf4 e1R Qc2 h2 Be2 c3 Nh3 Rb1 Nc4 Qc7 d8R Re1 d7 Kb5 f7 Bc5 f8Q Ra5 f6 Ra3 f7 Ra7 Qh6 Nf6 f8B Be3 Rg1 h1R Nf2 h3 Bg7 h2 Qh5 Rf8 Kh6+ Kb4 g5 Rd1 g6 Rd2 Rae1 a1B Qf3 Qc5 Qg3 Ne4 Bh5 Rf7 Rg2 Qf5 Re2 Qg4 Re1 Qd1 Re2 Nc6 b8Q Nd4 b7 Ne6 Qe5 Nf8 b8R+ Bb7 Rg1 Bb6 Ree1 Bc6 Re3 Ba4 Qc7 Nf6 Re5 Ne4 Rg2 Re1 Rg1 h1Q Qh2 Rb7 Qd6+ Bc5 Qdd3 Bd6 Qdg3 Be7 Qgd3 Qg2 Nb2 Bh4 Qb1 c2 Bh8 c1Q g7 Qgg4 g8Q Qdf3 Qdc2 Rb5 Nc4+ Bb2 Rg3 Rh1 Qg6 Qg1 Bg7 Qe3 Qf1 Ba1 Qfg2 Q1d1 Qgg1 Qh3 Qg4 Re7 Qf3 Bf6 Rg6 Qee1 Qfg3 Rb6 Re8 Qe6 d8Q Ra7 Qd5 Rb5 Red8 Qc8 Qe6 Be7 Rd6 Rbb7 Qd7 Bg5+
3b1N2/1Q1bnq1n/1QR5/6Q1/1rNqB3/Bkq5/RnrbQq2/KRR1QN2 w - - 0 1 legal: proof: a4 g5 h4 f5 hxg5 d5 c4 dxc4 e4 b5 exf5 Qd7 axb5 Qd8 f4 Kd7 g4 Kd6 b4 Kd5 d4 h5 Kd2 a5 Kc2 e5 Kb2 c5 g6 h4 f6 e4 f7 a4 b6 e3 g7 e2 b5 e1N f5 h3 f6 h2 g5 Nh6 g8R Qe7 g6 Ra5 b7 Qe8 b6 Ng4 g7 Nc6 b8Q Be7 f8Q Rh4 f7 Nf6 b7 Nh7 Nf3 c3+ Ka2 c2 Bd3 c4 Nbd2 a3 Ne5 c3 Qe2 Bf6 Qb4 Rc5 f8N Qf7 Qc7 Re4 b8R Bg5 Bb2 c1B Rb1 c2 Ra8 Rc4 Qcb7 Rf4 Bf5 Nd3 Rd1 Rg4 Nf1 Bce3 Qbd2 c1Q Qde1 Bd2 Ra6 Qc2 Rdc1 h1Q Ra4 Qf3 Bg6 Kd6 d5 Kc5 d6 Qf2 d7 Rge4 d8Q Bd7 Qdc7 Bd8 Qcb6+ Kd5 Ra7 Rb4 Bf5 Qcc5 Ra4 Rec4 Ra6 Rc2 Rh8 Qcd4 g8Q Nf6 Rh6 Nh7 Ra7 Qdh4 Qg5 Qhd4 Q7a6 Ne7 Rc6 Ra4 Qab7 Rac4 Kb3 a2 Ra3 a1Q Ra2 Qde3 Ba3 Qad4 Raa1 Nb2+ Ka2 Rb4 Bg6 Qc5 Be4+ Kd4+ Nc4 Qh3 Qgg4 Kc3 Qg8 Qcd4 Qg5 Nd3+ Rb2 Qhe3 Rab1 Qef3 Ka1 Q3g3 Ra2 Nb2 Qd5 Kb3 Qg5 Qgc3
b3r1RR/1N3k1r/R7/K1brb2n/2n1R3/4QBB1/rN2Qqq1/3QBnRQ w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 g4 a5 d4 c5 Kd2 a4 Kc3 h3 b6 h4 d6 e4 b5 c4 Kb4 a3 f6 h2 d5 c3 b7 e3 f5 a2 f7+ Kd7 g5 c2 f6 h3 b6 e2 g6 e1B+ Bd2 c1R g7 Qe8 Ne2 Rc7 Nc1 Rh5 Nc3 Be7 f8R Ra7 f7 Bd8 Nb3 Nf6 g8R Bg3 Rg1 h1Q Bg2 h2 Be1 Rc5 Na5 Be7 Bf3 Bf4 Qe2 Re5 Nd1 Qg2 Nb2 h1N Rh8 Kd8 d7 Nh5 Rfg8 N1g3 f8Q Nf1 Qh6 Qf8 Ka4 Bh2 Qhe3 Nc6 b8Q Nd4 b7 Nc2 Qa8 Na3 b8B Bb7 Rg4 Re6 Re4 Be5 Kb4 Bc6 Rg8 B7d6 Nb7+ Ke7 d8Q+ Kf7 Qd7+ Be7 d6 Bd5 Qa4 Bc6 d7 Rd5+ Nc5 B7d6 d8R Re8 Qad1 Rc7 Ka5 Be7 Rc1 a1R Qb7 Ra2 Ra1 Qfg7 Rh8 Q7g3 Qa8 Q3f2 Rg8 Bb5 Nb7 Bc5 Rc8 Bc6 Rh8 Re6 Rcg8 Rce7 Bd6 Re8 Bb8 Rh6 Bc7 Rh7 Bd6 Bg7 Bg3 Bgd4 Qc8 Bg7 Qh3 Be5 Qh1 Ke7 Nd8 Ba8 Nb7 Kf7 Ka6 Nb1+ Na4 Rc2 Ra3 Ra2 Nb2 Ba7 Ra5 Bc5 Kb5 Na3+ Ka4 Bcd6 Ra6 Bc5 Ka5 Nc4+
3N2n1/B3rRQ1/Bb2Q1qR/2RKQ2q/R5Qq/b6r/1N1k2N1/qb1n1Rn1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 b4 Kf4 g4 a5 g5 h5 d6 e6 d7 h3 g6 h4 f6 h2 b6 a4 b7 h3 g7 c6 b5 a3 f7 a2 b6 Rh6 Ne2+ Kf3 Na3 Qg5 d8R Nf6 g8Q Ra7 Rd6 Nbd7 b8R Ne5 b7 Nd3 Rg1 h1Q Nc4 h2 Nb2 e5+ Kc4 c5 Nf4+ Ke4 Qh5 Bh3 Rc8 Bf5 b8Q Rh7 Qgg6 Ng8 Ng2 Be7 f8Q Bd8 f4 Nf2 d4 Nd1 d5 Rae7 Qg4 Rh6 Kb5 c4 Kc5 c3 Be3 c2 Ba6 c1N Qff6 Ne2 Rf1 Ng1 Qfg7 Bc7 Kc4 Rh5 Ba7 Bb6 Q6f7 Rh4 Rh6 Qg6 d6 Rh5 Nh4 Ke3 d7 e4 d8N Kd2 Ng2 Rh4 Kd5 Rh5 Rac1 a1Q Qbe5 Rh4 Qfe6 Rh5 Ne3 Rh4 R8c4 Qf3 Qg3 h1Q Ng2 Qfh5 Ra4 Qh3 Rc8 Q3g4 Rc6 Rh3 Rc5 Qgh4 Qg4 e3 Nd3 e2 Nb2 Bc2 f5 Bb1 f6 e1B f7 Bf2 f8R Rf7 Rca5 Re7 Rf7 Bfc5 Rb5 Bb4 Rc5 Ba3
3qK3/2k1BR2/5b1B/nQ1BbQ1n/Qnr2NR1/3q3Q/1N5N/r2BrbrB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 g4 a4 b4 c4 e4 a3 d4 f3 e5 h4 d6 f6 Kg6 a2 Kf7 f5 b6 h3 e6+ Kc6 b5+ Kb7 e7 f2 e8Q c3 d5 f4 d7 c2 g6 f3 d6 h2 g5 Ra7 g7 Rh4 g6 Be7 Bg2 f1N Qd3 Qc7 d8N+ Ka8 d7 Ne3 Qf5 Qc5 Nd2 Rc4 Ne6 Kb7 d8B Bf6 Nf4 Qd4 Be7 Rc7 Nc4 Qd1 Nb2 Ra4 Qh3 Ka8 b7+ Ka7 b6+ Ka6 Qc6 f2 Ke8 f1Q Nf3 Qd6 Rg1 h1R Nh2 Nc4 Be3 Qf3 Raf1 a1B Bd2 Ra5 Qa4 Nc6 b8Q c1R b7 Kb6 Qf5 Be6 Qc8 Nb4 Rf2 Qfd3 b8Q+ Rb7 Bf3 Re1 Rg4 Rhg1 Bh1 Ra7 Qcd7 Na5 Qbc8 Ra8 Bc1 Rc7 Qdb5+ Ka7 Bd2 Rc4 Rf3 Bd5 Rf1 Bg2 Rf2 Nh6 g8B Bf1 Bgd5 Ng8 g7 Be5 Bdf3 Bf6 Be2 Be5 Bd1 Nf6+ Kf8 Nh5 g8B Bf6 Bgd5 Be5 Ke8 Bf6 Qb3 Be5 Q5a4 Kb6 Bc1 Ra7 Qa6+ Kc7 Q6b5 Qc2 Qh3 Bf6 Nbd3 Bae5 Nb2 Ra6 Ng6 Qd3 Bh6 Rc1 Nf4 Ra1 Rg7 Rc6 Rf7 Rc2 Rg2 Rc4 Rg4 Qd8+
1B2Q2N/b1RN1nQN/5N1q/R2B3r/n2rR3/1r1RQq1k/2bb1r2/3q1RK1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 h5 g4 e5 d4 c5 d6 h3 d5 h2 b6 e4 f6 h4 f7 h3 f5 c4 b7 a4 g5 c3 f6 a3 g6 a2 b5 c2 b6 Rh5 g7 Qe8 Qd2 Ra3 Ne2 Qe7 Nbc3 Ra8 Bg2 Ra5 Nf4 Ra6 Re1 h1Q Ng6 h2 Nh8 Qe6 Qe3 Nh6 g8Q Ra3 Qg7 Na6 b8Q Rb3 b7 Nc5 Rf1 Be7 f8R Nf7 Re8 Na4 Ba3 c1B Bf3 Nd8 f7 Qh6 Bc5 Bf6 Ba7 Bd2 Qa8 Bd4 Bb8 Ba7 Rac1 a1Q Re5 Ne6 f8N+ Ke8 Rce1 Qd1 d7+ Kd8 Re2 Ng5 Nh7 Nf7 Rg5 Ke7 d8R Bf5 d6+ Ke6 d7 Bg6 Ra5 Rh4 Nd5 Kf5 Bg2 Kg4 Rc8 Rh5 Bf3+ Kh3 Ndf6 Rd5 d8R Rd4 Rdd5 Nb6 Qd3 Rc4 Bd6 Kh4 b8N Na4+ Rdc5 Rd4 Nbd7 Bf5 Bg2 Bg6 Rc3 e3+ Kf3 Bf5 R8c6 Bg6 Qe8 Bf5 Bb8 Bg6 Rf2 Qhf1 R6c5 h1R Rc7 Rh2 Bh1 Rg2 Qde4+ Kh3 Q4e5 Bc2 Rd3 Rg5 Qf4 Rh5 Qfg5 Qc1 Re1 Qg2+ Ke2 Qe4 Kf1 Qd1 Kg1 Qb7 Bf3 e2 Rff1 Qe4 Qge5 Qef4 Bd5+ Qe3+ Rf2 Qf3 Ref1 e1R Re2 Nd6 Qeg5 Nf7 Re4 Re2 Qe3 Rf2
2nQb3/1B2B1nB/QK6/2NN3R/6kr/2rB2Nq/3qrbb1/1NqQrR1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 c5 e4 h5 d4 f5 b4 a5 e5 f3 Ke3 a4 b6 c4 d6+ Ke6 b5 f2 g6 h4 d5+ Kd7 Kd4 a3 Kc5 c3 b7 c2 b6 a2 g7 h3 g5 h2 e6+ Ke8 g6 f4 e7 Kd7 Ba3 f3 Ne2 Ra7 Ng3 Ra4 Bd3 Nc6 b8Q f1Q b7 f2 Qa7 Rh3 Qa6 Nf6 g8B Re4 g7 Re6 Bgh7 Na7 g8B Ne8 Bb4 Ng7 b8N+ Ke8 Nc6 Kd7 Ba3 Re2 Nb4 Bb7 Bhe4 Nc8 Bgh7 c1Q+ Kb5 Qg2 Rf1 h1R Bf3 Ke8 d7+ Kf7 d6 Kf6 e8B Kg5 Nd5 Qh2 Bg2 Kg4 Bc5 Qdg5 d8N Qgd2 d7 Bd6 Ba3 Bc5 Ne6 Bd4 Bb4 Bc6+ Ka5 Rh4 d8Q Qh3 Nc5 Ba4 Beg6 Be8 B6e4 Rh2 Bh1 Be3 Rg1 f1B Rg2 Bf2 Rg1 Bg2 Rf1 Be1 Rf5 Bf2 Rh5 Bf1 Nb6 Rg2 Bb7 Rg1 Nd5 Bg2 Nbc3 Re1 Rb1 Nd6 Kb6 a1R Ba3 Ra2 Ra1 Rc2 Nb1 Qg5 Bb2 Rc4 Bf6 Rc3 Be7 Qgf4 Ra4 Qd2 Re4 Qc1 Ree5 Qfd2 Ref5 Be3 Rf1 Bd4 Ne4 Bf2 Ng3 Nc8+
1b1nq2B/2N3QQ/4B3/q1nbq3/1Qb1B2R/2KbNr2/3r3n/kNR1B1BN w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 Kd2 Kf6 g4 e5 f4 c5 b4 a5 b6 h5 b5 a4 d6 e4 d5 c4 g5+ Kf7 b7 a3 b6 h3 g6+ Kf6 g7 a2 d7 h2 d6 e3+ Kc3 e2 Bd2 e1Q Ne2 h4 Qc2 h3 Bg2 Qd1 Be4 Nh6 g8B Qe8 d8N Be6 d7 Bd6 Nc6 Qe1 d8N Ng4 Ncd4 Nc6 Ng3 Bb8 Bf7 Qe2 Be1 Rf8 Bg8 Bf7 N8e6 Nd8 Nc7 Ra5 Qd3 Rd5 Nc2 Rd6 Ne3 Be6 Qd1 Rd2 Qc2 Bd5 Be6 Rf7 Rf1 h1B Rg1 Bg2 Nh1 Bf1 Qd3 Nh2 Rg4 Rf8 Rh4 Q2h5 Bd7 Bf7 Be6 Bg8 Qd7 Bd3 Qh7 Qg5 Na3 Qg7 Rc1 a1N Nb1 Nb3 Nc2 Nc5 Ne3 Ke7+ f6+ Kd6 f5 Ke5 f7 Qg3 Kb4 c3 f6 c2 Kc3 Qf4 B4d5 Qfa4 Be4 Qa5+ Kb2 Ba7 b8Q Kd4 Qb7 Bb8 Qg7 Bc4 Qa7 Bh7 b7 Rg8 f8B Rh8 Bd6 Rf8 Bdg3 Bf5 Bgf2 Bg6 Bg1 Bf5 Na3 Bh7 Ka1 Kc3 f7+ Kb3 Bc6 Bd3 Be4 Rg8 Qh7 Rg3 f8B Rf3 Bg7 Rf4 Bb2 Rf3 Rb1 c1Q Bh8+ Rb2 Qg7 Qcc3 Rc1 Qe5 Qb6+ Ka4 Nb1 Rd2+ Qb2 Nf1 Qh7 h2 Ng3 h1B Qc3 Ba7 b8Q Nh2 Qb6 Bg2 Nh1 Bb8 Qd6 Bd5 Qde7 Bgf1 Qeg7 B3c4 Qd4 Bd3 Rc3 Rd1 Kb2 Kb4 Rc1+ Ka4 Bb4 Rd2+ Kc3 Re2 Rc2 Ba2 Kb2 Rg2 Nc4 Re2 Be1 Rd2 Qc3 Bb3 Ne3 Bbc4 Kc1 Rg2 Kd1 Re2 Rc1 Rc2 Qd2 Kb3 Qc3+ Ka2 Qb4 Rc3 Kd2 Ka1 Nf5 Rb3 Ne3 Rb2+ Rc2 Q5h5 Kc3 Qf5 Rc1 Rd2 Ng2 Qfh5 Ne3 Qe5+
n1q3qn/QBbRNB1Q/2q4B/2R1B1rb/n2R1BR1/3N2Nk/K4r2/1bb5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 Kb2 e4 g4 e3 g5 e2 b6 e1B f6 c4 g6 h3 b7 c3+ Ka2 h4 b5 h2 f5 a4 b6 a3 g7 c2 f7 h3 d6 Ra6 d5 Bc3 f6 Rh7 Nd2 Ra5 Nc4 Be5 Bf4 c1Q Qd3 Nh6 g8B Na6 b8B Nc7 b7 Na8 Ne2 Rc5 Rg1 h1B Rg3 h2 Nb2 Bf3 Rg4 h1Q Ng3 Bg7 f8B Nf7 Bh3 Nh8 f7 Bh6 Bg2 Rc2 Qe4 Rg7 Qh7 Rf2 Rb1 Qcg1 Rc1 Rg5 Rc5 Be4 Bg7 Bc2 Nd3 Qc7 f8Q Qc6 Bc7 Qh3 b8R Ba6 Rb4 Bc8 Rd4 Ba6 Nc1 Be2 Nd3 Bf3 Bf7 Bfd1 Ka1 a2 Qb8 Be2+ Kb2 a1N Qa7 Nb3 Ka2 Bf3 Rh4 Bh5 Rg4 Nd2 Bf3 Nc4 Be4 Ncb6 Bb8+ Kd8 d7 Ke7 d8N+ Bc7 d6+ Kd7 Bed5 Na4 Be4 Qb6 Bb7 Qc6 Bf8 Qgg2 Ne6 Qg1 Ng7 Qgg2 N7f5 Qg1 Be8+ Ke6 Ne7 Qgg2 Bf7+ Kf6 Rh4 Qc8 d7 Qg1 d8R Qgg2 Bb3 Qgd5 Rg4 Qg8 Bc1 Rgf5 Bb2 Bc1 R8d7 Rg5 Bf7 N4b6 Rde4+ Be5 Rh4 Na4 Bc7 Rg6 Rb4 Kg5 Rhc4 Rg7 Bd4 Rg6 Bh6+ Kh4 Bb2+ Kh3 Rg4 Bef4 Bbg7 Rg5 Rbd4 Bfd2 Bb8 Ba5 Bf4 Bc7 Bge5 Bb1+
n4rQ1/k2N1B1R/2K1RB1r/1rNBN3/1N1b1q1q/5bq1/N1B2Q1r/Rn2b3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 d4 Kc7 b4 Kb6 g4 h5 d6 f5+ Kd5 c4 e4 f3 g6 c3 g7 f2 e5 a4 e6 a3 g5 a2 g6 f4 d7 c2 e7 h4 e8R h3 Qf3 h2 Re6+ Ka7 b6+ Kb7 b5 Be7 Bb2 c1B Nc3 Rh7 Bd3 f1Q Qf2 f3 Bc2 Qc7 d8Q Ra6 Qe8 Ka8 b7+ Ka7 Qd8 Nd7 b8N Rb6 Na6 Be3 Nb4 Qg3 Qf8 Rb7 Kc6 Nb6 d5 Rh6 d6 Bh4 d7 Bd4 d8N Nf6 g8B Ne4 g7 Nd2 Bf7 Na8 g8B Nb1 Qe8 Rb8 Nb7 Qc1 Nc5 Qcf4 Qe2 f2 Nf3 f1Q Qf2 Qfh3 Ne5 Qhg4 Qf8 Ba6 Qg7 Rf8 b6+ Kb8 b7 Be2 Nf3 Ka7 b8N Bd1 Ne5 Bf3+ Be4 Qgg5 Nbd7 Qh5 Bh7 Qhg4 Qg8 Q4h3 Rf1 h1R Bd5 Rh2 Bhe4 Bd8 Rh1 Qhh4 Bf5 Ba5 Bc2 Na3 Rac1 a1R Nca2 Rb1 Bc3 Rb3 Ra1 Nb1 Nc4 Be3 Bf6 Bd4 Nce5 Rb2 Nba6 Rbb8 N6b4 Rb5 Qg1 Qhg4 Ned3 R6h3 Nba6 Be1 Qf2 Rg2 N3e5 Rh7 Rh5 Rh2 N6b4 Q4h4 Rh6 Rg7 Rh8 Rg6 Rh7 Rh6
5N1Q/2RRKQ1r/nB5B/1nRRrRr1/1b1r2r1/4kbQq/1Q2Bn2/3r3N w - - 0 1 illegal: No possible last move, all moves rejected
7q/2rRN2Q/1Q1r1nN1/Bn1N2k1/Q1R4r/1Nbr2rB/bQQ1B3/3Kbb2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kf6 d4 e5 g4 c5 d6 a5 d7 h5 b6 h3 b5 a4 d5 e4 b7 c4 g5+ Kf7 d6 a3 f6 Kg6 f7 h2 b6 e3 f5+ Kh7 f6 Kg6 Nd2 h4 Be2 a2 Qa4 c3 Nb3 h3 Kd1 Nc6 b8N Nb4 b7 Nc2 Bd2 Nh6 Rc1 a1R Nc6 Qe8 d8Q Ng4 b8Q Rh6 d7 Bg7 f8Q Na3 f7 Nb5 Qc5 Qh8 Qde7 Nf6 d8Q Ra3 Qdb6 Be6 Rc2 Bd5 f8N+ Kf5 g6 Kg5 Q8b7 Rd8 Qed7 Rh4 Ne7 Rg4 Qdc7 Rd6 Qcc4 Rg3 Qbb8 Bh6 g7 Be6 g8B Bg7 Nfg6 Bd5 Rc1 c2+ Ke1 Bg2 Be6 Bf1 Rd1 c1R Ba5 Rc3 B6g4 Rcd3 Qc2 Ra1 Q8b7 Rc1 Qb2 Rc4 Be6 Rh4 Qcc2 Rc4 Q7a7 Rc7 Bf5 Ng4 Rd2 Bc3 Kd1 Nf6 Bh5 Rb7 Ne2 Rc7 Rg1 h1R Nef4 h2 Nfd5 Rd8 Bh3 e2+ Kc1 e1B Kd1 Rdd7 Be2 Rd6 Rg2 Rg1 Rf2 h1B Rf4 Rg4 Rc4 R1g3 Qa8 Be4 Qg8 Rh4 Qh7 Rdf3 Qcc1 Bb1 Qcc2 Ba2 Ne3 Re6 Rd7 Rd6+ N3d5 Rd3+
3KN2R/1r1N1nb1/3n1n1r/Rb1N4/NQ3NqB/2R1bnQ1/n2QB3/k2bQ3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 Ke6 h4 f7 h3 d6 c3 g7 c2 f5 Kb3 b6 Qc7 b7 Rh7 f6 Ra5 Nc3 Na6 b8R+ Bb7 d8N Rah5 d7 Qg3 Na4 Nb4 Be2 Nh6 g8N Bc6 Bg5 Bg7 f8N Nf7 Nb7 Nd5 d8Q Bb5 Nd7 R5h6 Qe1 c1N Bh4 Qg2 Nd6 Qg4+ Nf5 Kc2 b4 Kb3 Ra8 Kc2 Rb1 a1B Rb3 Na2 Ra5 Bd4 Ra3 Be3 Rd3 Bc4 b5 Bb3 b6 Bc4 b7 Bb5 Bd1+ Kb1 b8Q Ka1 Qbc7 Bb6 Ne2 Be3 Rf1 h1B Nf4 h2 Rc3 Be4 Rh1 Bc2 Be2+ Bd1 Qcb8 Nb6 Qd6 Nc8 Qdd2 Ncd6 Qa8 Bd3 Qg2 Ba6 Qgg3 Bb5 Kd5 e5 Ke6 e4 Ne7 Rh5 Ned5 R5h6 Rg1 h1N Ke7 Nf2 Rh1 Bd4 Rh3 e3 Rh1 Nfe4 Rh3 Nfg5 f7 Nf6 f8Q Ngf7 Qb8 Ba6 Qb4 Bb5 Bd3 e2 Rh1 Nde4 Nd6 Be3 Ne8 Ned6 Qeg1 e1N Be2 Nf3 Q1e1 N7e5 Kd8 Bf8 Ndc5 Rb7 Nd7 Bg7 Bg5 Rg6 Rh8 Rh6 Bh4 Nef7+
rbKr2Nn/Qr1B2Q1/Q1B2B2/1QBb4/4NR2/4qnB1/4bR2/rb1k2Nb w - - 0 1 illegal: No possible last move, all moves rejected
4n2B/b1BNRnR1/3r3n/1n3Q1Q/q3B1bK/r1NB1Qb1/1N2nQ2/k2b3B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 Kd4 g6 f5 e5 a5 g5 c5 b6 h5 e6 a4 b7 a3 b5 c4 d6 h4 e7 f3 e8Q c3 b6 c2 d7 a2 g7 h3 Kg3 f2 g6 h2 Ne2+ Kd3 Bb2 c1N Na3 Bc5 Nc4 Rh6 Rg1 Nc6 b8B h1B b7 Ra3 Bc7 Ba7 b8N Nf6 g8B Ne5 g7 Nb3 Bh7 Bf3 g8B Nd4 Bd5 Nb5 Qh5 Nf7 Kh4 Qe8 d8Q Qd7 Rg2 Ne8 Rg7 Rd6 Qdg5 Bg4 Bfg2 f1N Nc3 Nh2 Qf3+ Kc2 Re1 a1B d4 Ba6 Re4 f4 Qf5 Kb3 Qf2 f3 Re7 Bb7 Be4 Qc6 Qg1 f2 d5 f1N Nd7 Ng3 Qgf2 Ne2 Bh1 Qa6 Q5f3 Qa4 Bd3 Ba8 Bhe4 Bb7 Bc1 Ba6 Nb2 Bc8 Qhf5 Bh5 Bg5 Ng4 Bf6 Ngh6 Bd4 Rg6 d6 Bg4 Nb6 Ba6 d7 Rd6 d8Q Bb7 Ncd1 Ka2 Nd7 Bd5 Qa8 Bb3 Qh5 Bc2 Qad5+ Kb1 Qdf5 Ka2 Nc4 Kb1 Bf6 Be5 Nc3+ Ka1 Nb2 Bf4 Rh7 Bd1 Bh8 Be5 Rg7 Bg3+
2B1BQ2/2kNK2r/1R1R2q1/r3B3/Rbbrbb1b/Nn1NB2R/2QR4/2n1r3 w - - 0 1 illegal: No possible last move
r5q1/3QQ1bn/N7/3Rb2N/R2rQQR1/RBk2rBb/2B1Q2r/1b1nn2K w - - 0 1 legal: proof: e4 c5 g4 a5 d4 h5 dxc5 f5 gxh5 Kf7 exf5 Ke8 b4 axb4 c4 Kf7 h4 Kf6 a4 Ke5 f4+ Ke4 Kf2 e5 Kg2 b5 h6 d5 f6 g5 a5 d4 c6 b3 h5 b2 f5 b4 f7 b3 a6 d3 a7 Kd4 f6 g4 c5 e4 h7 e3 c7 e2 h6 e1B c6 d2 Qe2 d1B Ra3 g3 Nd2 b1N Ne4 b2 Rh5 Bc5 f8Q Be6 c8B Beb3 f7 Qe8 c7 Bc4 Kh1 Bf2 Nh3 Na6 Bf4 Nb4 Bf5 Bd6 c8Q Ba2 Qe7 Nc3 f8Q b1R Nc5 Nd3 Na6 Ne1 Bc2 Rb3 Qcd7 Nf6 Rha5 Bb1 R5a4+ Rb4 Bg2 Qc8 Bd5 Be5 Qff7 Rf8 h8R Nh7 Rg8 Qe8 Rg4 g2+ Kh2 g1R Bg3+ Bf4 Qff5 Rg2+ Kh1 Rf6 Qg5 Qg8 Qh4 Be3 Qg5 Bc1 Qgf5 Bb2 Bdb3+ Nd5 Qfe4+ Kc3 Ra5 Ne3 Rd5 Be5 Nf4 Rf7 Nh5 Rd4 Ra4 Rf3 Qf4 Nf8 h7 Ba1 h8Q Nh7 Qe4 Bb2 Qhf6 Rh2+ Kg1 Ba1 Qff4 Bg7 Qg2 Be2 Ra3 Bf1 Qe2 Bh3 Ra4 Rd8 a8R Nd1 Ra7 Ra8 Ra3 Rhf2 Kh1 Rg2 Ra4 Bb2 Ra3 Rh2+ Kg1 Rc4 Nc5 Kb4 R7a6 Bbf6 R6a4+ Kc3 Na6 Be5 Qc6 Rhf2 Qcd7 Rd4 Kh1 Rh2+
rNNBnQ2/1N2r3/1b1Bbqk1/2QN4/b5B1/Q2n3R/1n1Qr1KR/bQ2r3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 Kf2 h5 g4 e5 d4 a5 b6 h3 d6 h4 d5 c4 d7 h2 b7 c3 b5 h3 d6 e4 b6 c2 f6 a4 f5 a3 g5 a2 Qd2 Rh5 Nc3 Qe7 d8N+ Ke8 g6 Be6 f7+ Kd7 f6 Ra6 g7 Rha5 Be2 Ra8 Ba3 c1N Nf3 Re5 Nd5 Nc6 b8Q Na5 b7 Nc4 Nd4 Nb2 Nf5 e3+ Kf1 Re4 Bg4 Ncd3 Rc1 a1B Rc3 Re5 Qa7 Re4 Qc5 Re5 b8Q Re4 Nb7 Qd8 Rc2 Be7 f8N+ Ke8 d7+ Kf7 Qba7 Qb6 Qb8 Bd8 Nfe7 Qa6 Nc8 Bb6 d8B Re5 Nh7 Kg6 f7 Nf6 f8Q Ne8 Nhf6 Re4 Nd7 Re5 Rg1 h1B Rg3 h2 Rh3 Be4 Qf3 h1R+ Kg2 e2 Bb4 e1R g8Q+ Ng7 Qgf8 Ne8 Qcc7 Re3 Bd6 Rhe1 Qc5 B4f5 Nc3 Bb3 Nd5 R3e4 Qfe3 Re7 Qa3 Be6 Qg1 Nc5 Qa7 Ba4 Nb8 Ncd3 Qac5 R1e3 Qb1 Re1 Qa3 Qc4 Qaa5 Qd4 Q5c5 Qg7 Rc3 Qf6 Rh2 Nb4 Rf3 N4d3 Rfh3 R4e2+
2RBbBNb/1R2Q3/2n1r1r1/3k2N1/b1n1R1R1/2q3bQ/7K/rRnB1QnQ w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 Kf2 e5 Kg2 a5 d4 h5 b4 c5 f6 c4 f7 e4 g5 h3+ Kh2 e3 b6 c3 f5 e2 f6 e1B g6 h4 g7 c2 b7 a4 b5 a3 b6 a2 Nf3 Rh7 Be2 Be6 Nbd2 Rh5 Ba3+ Kd7 d6 Kc6 d7 c1N Ne4 Nh6 g8R Rf5 Rb1 a1R Rg4 Qc8 d8R Ra6 Nfg5 Bg7 f8Q Bb3 f7 Bh8 Nf6 Ba4 Ng8 Re5 Qe7 Nf5 f8Q Ne3 Qf1 Nc4 Bd6 Qc7 Rc8 Kd5 Qb3 Qc6 Bd1 Re6 Re4 Qc7 Rg1 Nc6 b8Q Rg6 b7 Bg3+ Kh1 h2 Qa8 Qa5 b8R Qc3 Rb7 Rb6 Kg2 h1B+ Kh3 Bf3 Rg2 Bh5 Bc5 Bf2+ Kh2 h3 Rgg4 Re6 Qh1 Bh4 Qa6 Be8 Qa3 Nb2 Qaf1 Nc4 Qh7 Be1 Bf8 Ra6 Qae7 Bg3+ Kg1 h2+ Kg2 Rb6 Qh3 Bh4 Qhg1 h1N Kh2 Ng3 Qh1 Nd6 Rd8 Nge2 Rc8 Kc4 d5+ Kc5 Qe1 Ng1 Qef1 Bg3+ Kg2 Rg6 Rbc7 Rb5 Rb7 Bf2 Kh2 Rb2 Re5 Re2 Re6 Re4 Re5 Kd4 Re6 Nc4 d6 Kc5 d7+ Kd5 d8B Bh4 Rf6 Be1 Rf3 Ree6 Rff4+ Qf3 Re4 Qc3 Qff6 Bh4 Qff1 Bg3+
1r1B2r1/B2b2Q1/1Qbbb3/qrnNB3/5KRQ/1n2NR1r/B1N2B2/3Qq2k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 d4 h5 b4 e5 g4 a5 f6 c5 f7 a4 b6 a3 g5 h3 g6 c4 g7 h4 b7 e4+ Kf4 h2 b5 h3 b6 a2 Nd2 e3 Ne2 c3 Bb2 c2 Nc4+ Kd7 d6 Ke6 d7 Kd5 Rg1 c1R Rg4 Ne7 g8N h1B Nf6+ Ke6 Nd5 Nbc6 b8B h2 b7 Rg8 Ba7 Nb4 b8Q Qa5 d8Q Bd7 Qbb6+ Nec6 Qh4 Rb8 f3 Bc5 f8Q Rc3 Qg7 Na6 Rc1 Ra3 Rc3 a1R Rd3 Bg2 Bc3 h1B Be1 Rh8 Bf2 Bh3 Nf6 Rbf8 Rg6 Rhg8 Rc3 Bf5 Rg4 Rb1 Rd3 Be8 Rb3 Bf7 d5+ Ke7 d6+ Ke6 d7 Rb8 d8B Bd6+ Kg5 Bg2 f4 Nd4 Rc3 Bc6 Nd5 Nc5 Rb3 Nc2 Rc3 Rb5 Nd4+ Kd7 Rb3 Na1 Nc2 e2 Rh3 Rg3 N4e3 e1Q Bc4 Ke6 Ba2 Rf3 Rhg3 Nab3 Rh3 Bfe8 Rhg3 Bed7 Rh3 Bc7 Rhg3 Kd6 Rh3 Bfe6 f5 Rg3 f6 Ke5 f7+ Kd6 Nf6+ Ke5 f8B Rf3 Bfe7 Bd6 Nfd5+ Rf6 Nf4 Ke4 Rhg3 Rff8 Bf6 Rf7 Be5 Rf6 Qh8 Rh6 Rh3 Rh7 Rhg3 Rh3 Qh4 Qac3 Qa1 Qa5 Nfd5+ Kd3 Rf3 Ke2 Nf5 Kf1 Kf4 Qc3 Qd1 Qa5 Bg3+ Kg2 Bf2+ Kh2 Nfe3 Kh1
brqB2R1/k3bqNK/BRbQ1R2/5n2/Q1q5/B1rn2B1/2q5/b1R1NR1N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Ke4 c5 d4 Kc7 f4 Kb7 b4 e5 g4 h5 g5 a4 d6 c4 d7 a3 f6 h3 Kf5 a2 Kg6 h2 f7 c3 b6 e4 d5 c2 d6 e3 b5 e2 f5 e1B f6 h4 Na3 h3 Ne2 Qe8 d8B Ra6 d7 Bd2 Ng3 Ka8 b7+ Ka7 Be2 Re6 Rf1 Rc6 Nh1 Na6 b8R Bdb4 Rb6 Bbe7 Bf4 c1Q Nc2 Rc7 Bg3 Nh6 Ne1 Nf5 Qa4 Qc4 Rc1 a1Q Bd3 Rg8+ Kh7 Qb1 g6 Bg7 f8B Qbc2 f7 Ba1 g7 Bb7 Rf6 Bc6 b6+ Kb8 b7 Ka7 b8R Ba8 Nf2 h1Q Rbb6 Qb7 Nh1 h2 Be2 Qc8 Bd3 Bb4 Bfd6 Ba3 f8N Qef7 Ne6 Bc5 Bde5 Rc6 Bb2 Be7 Ba3 Re8 Bdc7 Rf8 d8Q Rg8 Qd6 Rc5 Nf2 h1B Bd8 Bhc6 Nh1 Re8 Qb3 Nb4 Qa4+ Q4a6 Bb5 Rc3 Bc4 Nd3 Bb5 Qf8 g8R Qf7+ Ng7 Rf8 Qb3 Qa4 Ba6 Qac4 Qa4 Qb7 Bc7 Rb8 Bd8 Qc8
1rNQn3/2N1N1nR/1Bb5/2r1qR1R/1BqqQ1N1/4BK2/1kBp2r1/2bB1n2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 h4 Kf6 b4 Ke5 c4 g5 f4+ Ke4 f6 e5 c5 a5 c6 d5 h6 g4 f5 a4 c7 a3 h5 g3 h7 a2 b6 g2 f7 Bg7 f8B Ra5 f6 Bh6 b7 Bd2 f7 Ra3 h6 Nf6 b5 Rf3 b6 Qe7 Rh5 Nc6 b8B Bf5 c8B Bg5 b7 Rc3 Na3 Ne8 Nf3 g1R Qe1 Qe6 Nc4 Ne7 Nb6 Rc5 Be3 d3+ Kf2 d4 Ba7 d2 b8N d1Q Be2 d3 Nc6 Qc4 Nh2 Bd7 Ng4 Nf5 Ne7 Nfg7 Ba6 Qda4 Nbc8 Bc6 Bb6 Qd4 Bb5 Qac4 Bd1 Rg3 Rc1 a1N Bba4 Nb3 Rc3 Nd2 Bac2 Rg8 h8Q Nf1 h7 Bh6 Ra3 Bf4 Ra5 Rg1 Nf5 Kd5 Be7 e4 f8N Bh6 Qb4 Bg5 Ne6 Rg2+ Ke1 Rf8 Qg8 Bh6 h8R Bf4 R8h7 Bh6 Bf2 e3 Nc7+ Ke4 Bd6 e2 Nfe7 Bc1 Rf5 Qe3 Qb1 Kd4 Rfh5 Kc3 Rb5 Qh6 Be3 Qf6 Qh8 Qfd4 Rf5 Rg3 Kf2 d2 Qg8 Rg1 Qd5 e1Q+ Kf3 Rg2 Qe4 Qb3 Qa2 Qbb4 Qad5 Kb2 Ra5 Qbc4 Qg8 Rb5 Bb4 Rc5 Qgd5 Qe5 Qd8 Qh4 Ra3 Qhf6 Rd3 Rg8 Rd5 Qfd6 Rfh5 Qed4 Rdg5 Q6e5 Rf5 Nf6 Qf8 Ba8 Nd6 Bc6 Qc8 Rf8 Qd7 Ra8 Qd8 Rb8 Ndc8 Nfe8
3n1rN1/Q1q2R1q/1B1kBQQN/4NQ2/7R/R2q2p1/Rr2b2b/Kb1r1n1R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 c5 b4 f5 d4 g5 Kd2 a5 Kc3 c4 Kb2 f3 h6 a4 h5 f2 d6 f4 e5 f3 h7 g4 b6 g3 h6 Nf6 d5 Ng8 e6+ Ke8 b5 Qd7 b7 Nc6 b8R Nge7 b6 Na7 b7 Ng6 e7 Qf5 d7+ Kf7 d8R Nc6 e8Q+ Kf6 d6 Nge5 d7 Ra5 Be3 Bd6 Bh3 f1Q Ra2 c3+ Ka1 f2 Nf3 a3 Qd5 c2 Ra8 c1Q b8Q Rf8 h8N Ng4 h7 Bc5 Qg6+ Ke7 Nf7 Rb5 h8R Rb2 Rh4 Nh2 Qa7 Q1d3 Nh6 f1B Ne5 Be2 Bg4 Qf7 Be6 Qh7 Qf3 Bd4 Qff5 Nf1 Bg1 Qc5 Nc3 Kd6 Nd5 Qb6 Ne7 Qc7 Re8 Nd8 Neg8 Bb7 Be3 Be4 Re7 Bc5 Rf7 Bd4 Bc1 Bg1 Be3 Bh2 Bb6 Rb5 Rc2 a2 Rc3 Rb2 Ra3 Qb5 Qg7 Bb1 Qgg6 Nb7 d8Q+ Qbd7 Qdg5 Nd8 Q6f6 Qb5 Qf5g6 Qd3 Q5f5 Qcc2 Ra6 Rb3 Rc8 Qc7 Ra3 Qb8 Rc2 Qc7 Rb2 Rc3 Rd2 Rc1 Rc2 Rd1 Kb2 a1R Rd2 Ba2 Rc2 Rac1 Rd2 Bb1 Ka1 Rc4 Rb2 Rc2 Rba2 Rb2
B1Q2Q1b/kb1q3Q/4R2N/1B2B1rq/2n2K2/1bpq4/nBR2Nr1/Nr2NB2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 b4 h5 g4 c5 d4 Kc7 e4 Kb7 e5 f5 g6 c4 e6 c3 b6 a4 g5 h4 d6 h3 b5 a3 e7 a2 e8B h2 d5 Be7 d7 Qc7 d8Q Bb4 g7 Ba3 d6 Qc5 g6 Qd4 d7 Be7 Bb2 Rh5 Qc2 Ra5 Nd2 Bf6 Nh3 Be7 Re1 a1R Nf2 Rg5 Nb3 Bf6 Re6 Rb1 Na1 Nh6 g8N Bh8 g7 Nf7 Nh6 Nd6 g8B Ra2 Bh7 Ka8 b7+ Ka7 Rg1 h1Q+ Rg2 Nc6 b8N Qg7 Na6 Bb7 Qc8 Nc4 d8Q Qd7 Nc5 Nb4+ Qe4 Qh2 Ncd3 Qh4 Ne1 Qh1 Ba3 Re2 Bb2 Na2 Qf6 Qh2 Qf8 Qh5+ Nfg4 Rc2 Rh2 Rg2 Bhg6 Qd5 Bc6 Qd7 Be8 Rg1 Rc2 Rg3+ Kf2 f3 Qd3 f4 Qh7 Ba6 Ba8 Bb7 b6+ Ka6 Bh3 Rg2+ Kf1 f2 Ke2 Qd6 Bc6 f1B+ Kf3 Qd7 Ke4 f3 Kf4 Be2 Nf2 Bd1 Ba4 R2g3 Bf1 Rg2 Nh1 f2 Bb5+ Ka5 Be2 f1Q+ Nf2 Qfh1 Bf1 Q1h3 Rg6 Qhd3 Re6 Bc6 b7 Kb6 Qff5 Ka7 b8B+ Kb6 Bc7+ Ka7 Qff8 Bcf3 Be5 Bb7 Re2 Ba4 Rc2 Bb3
2N1bKnr/3Rq2k/1bbr4/2R2n2/pQr3QB/QN1Q1R2/q4n2/2RB1R1N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kc4 c5 g4 e5 f4 a5 b4 h5 d4 h3 g5 e4 f6+ Kg6 f7 h4 f5+ Kh7 d6 a4 Kd5 h2 f6 h3 b6 c4 b7 c3 b5 c2 d7 e3 Ke6 e2 d5 e1R+ Ne2 Qc7 b6 Ne7 d6 Ng6 Nd2 Na6 b8R Nb4 b7 Bh6 f8R Nh4 Kf7 Qc3 d8Q Nf3 d7 Nd5 Nb3 Ne7 Ng3 Qd2 Be2 Qd3 Rf1 Nf5 Nh1 Qd4 Ke8 Nd2 f7 Qb4 g6+ Kg7 Qg5 Ra6 d8R Rd6 Qg4 Be3 Rd7 Ne4 Qd3 Bb6 Bg5 c1Q Bh4 Qca3 Bd1 Qa2 Rc1 Kh6 g7 Kh7 g8N Qc5 Nf2 h1B Ne7 h2 Ra8 Bg2 b8Q h1N Ra5 Re2 Qb7 Rc2 Qb8 Qca3 Rc5 Rc4 Qb7 Bf3 Qb8 Bb7 Nc8 Bc6 Qb7 Nh6 Qb8 Ng3 Nh1 Ngf5 Qb7 Nf2 Qb8 Ba7 Qb4 Bb6 Rg8 Q3b2 f8Q+ Qg7 Qe7 Bb5 Rf8 Ng8 Qa3 Bd5 Qe1 Bdc6 Qeb4 Kh6 Rf7 Qe5+ Kf8 Qf6 Rc7 Be8 Re7 Bbc6 Re3 Qd8 Rf3 Qg5 Rd7 Kg6 Rd8 Kh7 Rd7+ Qe7+
Q3R1nR/nQ3qNQ/3rr3/n1QBB2p/B1b1Kb1N/2bR2q1/B7/2k2q1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 b4 Ke5 e4 Kd4 g4 c5 e5 f5 d6 a5 g6 c4 g7 c3 b6 c2 b5 h6 b7 a4 b6 a3 g5 a2 d7 Na6 b8Q Qf6 d8Q+ Bd7 b7 Qg6 e6 Be7 Qbc8 Rb8 Na3 Rh7 Nb5+ Ke5 d4+ Kd5 Bg2 Bf6 e7 Nb4 e8B Qf7 g6 Be5 Bb2 c1Q Qdc2 Nc6 Nd6 Qe1 Rd1 a1B Rd3 Na7 Q2c7 Be6 Ba4 Ra8 b8Q h5 Ne8+ Bd6 Qdd7 Rh6 Q7b7+ Nc6 Qb8c7 Kc4 d5 Ra6 Be5 Bc3 Qca8 Qh4 Qa5 Na7 Rh3 Bc7 Bh1 Rd6 Re3 Bb8 Re2 Kd3 Qc5 Bc7 Re4 Kd2 Qe7 Nf6 g8B Kc1 g7 Bb8 Bh7 Qg5 g8B Qh4 Ng7 Qg3+ Ke2 f3+ Ke3 f2+ Nf3 f1N+ Kd3 Qf2 Nh4 f4 Ree3 f3 Be4 Nd2 Re2 Rb6 d6 Nc4 d7 Rd6+ Bd5 Qg3 d8R f2+ Re3 Na5 Rf8 Ne8 Ke4 f1Q Rd3 Bc7 Rh2 Bb8 Re2 Rf6 Ba2 Bc4 Qed7 Rg6 Qf5 Rge6 Qh7 Nc7 Re8 Nd5 Rc8 Ne7 Rd8 Q7f6 Bf7 Q6f2 Rh8 Ng8 Ree3 Rf6 Bd5 Rfe6 Rf3 Bc7 Rf8 Qf7 Rc8 Bd8 Rb8 Bg5 Re8 Bf4
bK1b1R2/q3r2k/3n1Q2/1RqpQqRN/1N2r3/r1n1BQ2/1BB1Q3/RnR5 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 e5 Ke4 a5 Kd5 g5 h4 Kg7 c4 a4 f4 g4 b4 g3 h6+ Kh7 f6 e4 h5 d6 f7 d3 f5 g2 f6 e3 c5 a3 b6 a2 c6 e2 c7 e1R b7 d2 b5 Ra4 b6 Re7 Qe2 d1N Na3 Nb2 Be3 Rc4 Nh3 g1Q Nf4 Qh2 Rg1 Qg3 Nc2 Rc3 Nb4 Qe1 Rg5 Bf5 c8R Ra3 Rcc1 Na6 Kc6 Na4 b8Q Qf2 b7 Nc7 Bg2 d5 Be4 Qc8 Bc2 Nc3 Kd6 Bg7 f8R Nb1 f7 Nf6 Kc6 Bg6 Kb6 Nce8 Qe5 Qc3 b8R Nd6 Rb7 Qd4+ Kc6 Nfe4 Rb5 Bf5 Qf6 Bd7+ Kc7 Bc6+ Kb8 Ba8 Qe5 Rg8 Qf6 Kh8 h7 Qc4 Re8 Qf1 f8Q Nec3 Q8f7 Qh3 Rf8 Qc5 Qe5 Qe6 Qff5 Qg6 Qfg4 Bf6 Qgf3 Kg7 h8B+ Kh7 h6 Qf5 Nh5 Rg6 Rg3 Rg4 Bg7 Kg6 h7 Bg5 Rg2 Re4 Bf6 Kh6 h8Q+ Kg6 Qg8+ Kh6 Qge6 Kh7 Rg4 Rf7 Bg7 Bd8 Rg5 Re7 Qef4 Nd1 Bb2 Ndc3 Qfe5 Nd2 Rab1 a1Q Q6f6 Qa2 Ra1 Ndb1 Qfg3 Qac4 Qgf3 Q4d4 Na6 Qa4 Nb4 Qaa7#
RN1KQ1B1/2pR3B/1q2qBrr/1bB3bQ/4R2n/3RnQ2/1qN1B2k/4br2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 g4 h5 d4 f6 b4 a4 g6 h4 g7 a3 g5 a2 b6 h3 g6 f3 b7 f2 b5 h2 b6 Nh6 g8B Nf5 g7 Ra3 Bg5 Rh6 Bh7 Nd7 b8Q Ra6 g8B Rg6 b7 Ne3 Nf3 Nf5 Na3 Rg7 Nc2 Nb6 Ne5 Be7 Nc6 Nh6 Qa8 Rg6 b8B Bb7 Ba7 Qc8 Nb8 Nf5 e3 Qe8 Qh5 Bc6 Be2 Bb5 Rhe1 h1Q+ Kf4 Bd8 e4 f1Q+ Kg4 Qe6 e5+ Ke7 Qb7 Nc4 Bc5+ Rd6 Rad1 a1B Rd3 Qf2 Qa8 Bc3 Qc6 Qf7 e6 Nh4 Qa8 Qhh2 Qb7 Kf8 e7+ Kg7 e8Q Ra6 d6 Qe5 d7 f5+ Kh3 f4 Kg4 f3 d5 Rab6 d6 Ne3+ Kh3 Be7 d8R Ba5 d7 Qb2 Qd5 Qe6+ Qf5 Bb4 Rc8 Qg1 d8R f2 R8d7 f1R Qf3 Rd6 Bf6+ Kh6 Q5g4 Neg2 Kg3 Ne3+ Kf4 Bd2 Ra1 Be1 Ra4 Qf2 Re4 Qc4 Bfd4 Bg5+ Ke5 Ra6 Nc6 Qg1 Ra8 Qcb3 Qgf5 Qg4 Nb8 Kh5 Qee6 Rh6 Qe8+ Rag6 Bc3 Nc4+ Kd5 Qb4 Bf6 Ne3+ Ke6 Qa5 Ke7 Qb6 Bf7 Nhg2 Re5 Kh4 Kd8 Qc4 Bfg8 Qce6 Qh5+ Kg3 Re4 Nh4 Qff3+ Kh2
2n3Qq/3NQ2n/7B/1b1r2RB/B1Qr1N2/b2p1n2/2Bk2KR/1rnnRR1B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 a5 Kf2 d5 b4 h5 g4 e5 c5 e4 f6 Kg6 c6 e3+ Kg2 h4 f5+ Kh7 c7 a4 g6+ Kh6 g7 Kg5 f7 Kf4 f6 a3 g5 a2 g6 d3 b6 d4 b5 d2 b7 d3 b6 e2 Nh3+ Ke3 Qa4 e1R Qc4 Nd7 b8Q Rh6 b7 Nc5 Na3 Qd6 Rh2 Na4 Nf4 Qd8 Be2 Ra5 Bh5 Be6 c8B Nb6 Bd7 Rd5 Ba4 Nc8 Rb1 Be7 f8Q a1N f7 Nf6 g8B Bd7 g7 Nb3 Qa8 Bc6 b8R Nh7 Rb5 Nd4 Ra5 Bb4 Qe7+ Re6 f8R Bb5 Bgf7 Re4 g8B Nf3 Be8 Bd6 Bc6 Rd1 Be6 Red4 Rf7 Qh8 Ra1 Nb6 Qg8 Nc8 Bc2 Rc5 Be4 Rcd5 Bd7 Bc5 Ra6 Rf1 Rg6 Rd1 Rg5 Bb4 Nb1 Ba3 Nc3 Re1 Na4 h3+ Kg3 Rd1 Nb6 Rf1 Be8 Re1 Nd7 Rg1+ Rg2 h2 Kh3 h1N Rh2 Ng3 Rff5 Ne5 Bh1 Ne2 Rf6 Re1 Kg2 Rf1 Ne6 Rd1 Rf1 Nf3 Nf4+ Re4 Bb2 Rb1 Bg7 d1N Bh6 Kd2 Re1 Rb4 Rb1 Red4 Rc1 Rb1 Rf1 Ndc3 Rce1 Nd1 Nb6 Ba6 Bea4 Bb5 Nd7 Nc1
B3qn2/N6n/br2RNBB/4QR2/1rbR1R1n/k2p2Bb/3RKbN1/6bQ w - - 0 1 illegal: No possible last move, all moves rejected
3r1BB1/RQb1KN2/nB4k1/1bn1Rr2/RQ2N1n1/1pn1b2Q/n2Qq3/5BQ1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Bb5+ Kf7 Ke2 c5 Kd3 e5 Kc4 g5 f4 b6 h4 e4 a4 e3 d4 e2 h6 e1N h7 g4 h5 g3 h6 g2 d6 b3 Kd5 c4 d7 b2 a5 c3 a6 c2 a7 Qe8 d8R Bc5 f6 Be7 f5 Bd6 Nd2 b1N Nh3 g1N Ra4 Na6 Ng5+ Kf8 f7 Nc5 Rh5 Na6 Rd7 Qd8 Ke6 Bb7 d5 Bb8 d6 Na3 Qg4 Nf6 Bf1 Ne2 Qg1 Rg8 h8Q b5 h7 b4 Nde4 b3 Be3 c1B Bb6 Nb4 Nf2 Qc8 Nfe4 Qc5 Re7 Qa5 d7 Bc6 d8Q+ Be8 Qd3 Qa6 Rc7 Be3 Qd2 Nc3 Re7 Nfd5 Qhd4 Nca2 h8Q Nf6 Qd5 Ng4 Qd7 Bc5 Qhc3 Bf4 Qh3 Kg7 f6+ Kg6 f8Q Nb5 f7 Bce3 Qc6 Rc8 a8B Nbc3 Ra7 Qe2 Qe7 Rh8 f8B Rd8 Qc4 Na6 Qcb4 Rh7 Bd5 Nd3 Qb7 Bb5 Bc4 Rh6 Ke7 Ndc5 Bg8 Bc7 Nf7 Rh8 Rd5 Rh5 Re5 Rf5
2nkB1Nn/4Nn1n/1R3rB1/1r1bN1R1/B1p4Q/1NB2nq1/2N1R3/b1Q1bK2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 c5 g4 a5 b4 h5 d6 f3 d7+ Ke7 d5 h4 d6+ Ke6 g6 a4 b6 a3 g7 h3 g5 f4 e5 h2 b7 a2 b5 Be7 b6 Qf8 d8Q Ra6 d7 Nc6 b8N Nf6 g8N Bb7 g6 Rh5 g7 Na7 Nd2 Bd5 b7 Nc8 Bb5 c4 Nc6 f2+ Kf1 Bb4 b8R Nh7 Ne2 Qd6 Rg1 h1N Nb3 Be1 Ba4 Qa3 Rb1 a1B Qh4 Qd6 d8N+ Kd7 Rg5 Qg6 Rg2 Qg3 Rb5 Ke8 Nce7 Rf6 Ned4 Kd7 Ke2 f1N Nc2 Ne3 Nf7 Nf2 Bd2 Ne4 Qc1 Neg5 Bc3 Nf5 Kf1 f3 Re2 f2 e6+ Kc7 Rb6 Nh6 Ne5 Kd8 Nd7 Qd3 Rb5 Nhf7 Nbd4 Bc6 Ng6 Kc7 e7 Nh8 e8B Ne6 N6e7 Rd5 Kg2 f1N R1b4 Bb7 Nb3 Kd8 Rb6 Nh2 R4b5 Neg5 Bg6 Nhf3 Kf1 Qd4 Be8 Ngf7 Rc5 Rdd6 Rg5 Qg4 Ne5 Qg3 Nh6 Nf8 g8B Rd5 Bh7 Rb5 Nhg8 Bd5 Bg6 Nh7
1B2k1N1/Nb1R4/bRn1p3/Q1rB4/2n2N2/b2b1Qq1/N2r1BKB/1rb3NR w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 c5 b4 a5 f4 h5 Kf2 h3 d4 a4 b6 e6 b7 h4 d6 a3 b5 a2 d5 c4 f6 c3 b6 h2 f7+ Kd7 g5 h3 g6 c2 g7 Ra7 f5 Ra4 f6 Nc6 b8B Nd4 b7 Ra3 Qe1 Qb6 Be3 c1B Bc4 Rb3 Qa5 Ba3 Nc3 Qd8 Rb1 a1R Na2 Nh6 g8N Rd3 Rb6 Bc1 Bc7 Nhf5 b8B Be7 f8N+ Ke8 Ng6 Nc6 Nf4 Ba6 Bb3 Rh5 d7+ Kf7 d6 Rd2+ Kf3 Rb1 Bf2 Ne3 Bd5 Nc4 Kg3 Bf8 Kf3 Qe7 d8R Rf5 Rd7 Ke8 Be4 Rc5 Bd5 Qh7 Kg3 Qh4+ Kf3 Bg7 f7+ Kf8 Re7 Bgb2 d7 Ba3 d8N Qf6 Rd7 Qh8 Nge2 Qd4 Rd1 h1B+ Kg3 h2 Ng1 Be4 Kh3 Bg6 Kg2 Bd3 Rf1 Nb4 Nc6 Qh8 Na7 Qh4 Re1 Nc6 Nfh3 Kg7 f8Q+ Kg6 Qf3 h1B+ Kh2 Qe7 Nf4+ Kf7 Kh3 Ke8 Be4 Qf7 Ng6 Bf1+ Qg2 Nd8 Ne2 Ne3 Bh2 Qf6 Ngf4 Nc4 Kg3 Qh8 Qh3 Qf6 Ba8 Be4 Bc6 Bfg2 Rh1 Bd3 Ng1 Qe7 Qg4 Bd5 Qf3 Qh4+ Kg2 B5e4 Bb5 Ba8 Bc6 B8b7 Be4 Nc6 Bd5 Qg3+
k1Nb1N2/B3B3/3p1R2/BB2r1Rn/rqRr2bn/1rBQQ1K1/n1N5/3r2N1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 e5 Kf2 a5 c4 g5 h4 a4 b4 d3 f6 e4 h6 d6 c5 Kd7 h7 Kc7 c6 g4 f7 a3 h5 e3+ Kg3 a2 f5 e2 h6 e1R f6 d2 Rh4 Bb7 b6+ Kc8 b5 Ra5 c7 Be7 f8R Ra4 f7 Rf4 Na3 Nc6 Nc2 Kd7 c8N Re5 Qe2 d1R Qe3 Ba6 b7 Kc7 b8B+ Kb7 b6 Ka8 Bc7 Nb4 Bb5 Nf6 Qd3 Rg8 h8Q Rd4 h7 Rgg5 Rb1 a1R Be3 Rgf5 Bg5 Na2 Qg7 Qe8 h8B Bd8 Qh6 Qe6 Rb4 Qb3 Rc4 Qb4 Rh5 Rff4 Bh4 Rab1 Qg5 Rfe4 Qge3 Rb3 Rg5 Bb7 Re8 Rf4 f8N Bf3 Re6 Rfe4 Kh2 Nh5 Rf6 g3+ Kh3 Be7 Bd8 g2 b7+ Kb8 Ba5 Bd8 Nb6 Ka7 b8B+ Kb7 Kh2 Bg4 Nc8 Ka8 Ba7 Rf4 Rfg6 Rfe4 Bf6 Rf4 Be7 Rfe4 Be1 Rf4 Bc3 Rfe4 Nh3 g1N Rf6 Nf3+ Kg2 Rf4 Ng1 Nh4+ Kh2 Qa3 Rc5 Ra4 Rc6 Qb4 Rc4 Be2 Kh3 Rd4 Kh2 Bf3 Kh3 Bg4+ Kh2 Ng7 Kg3 Nh5+
R3b1N1/n2R2B1/2N2b1N/b1K2Q2/2QNQ2r/2rq4/2Bnr2p/RbkN1nR1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 g4 c5 d4 h5 f4 e5 g5 a5 f6 a4 d6 a3 g6 h3 d5 h2 g7 h4 f5 h3 d7 a2 b6 Be7 b7 Ra5 d6 Qf8 d8N Nh6 g8N Ng4 d7 Rh4 f7 Nc6 b8Q Na7 b5 Bf6 b6 Qd6 Bb2 Ke3 f8Q e4 b7 Qd2 Nc3 Qd3+ Kb3 c4+ Kb4 Re5 Qa4 Kd2 Nge2 e3 Nd4 e2 Nf7 e1B d8R Be6 Nd1 c3 Nfh6 c2 Qc7 c1R b8N Re2 Nbc6 Rc3 Rd7 Bf7 Rg1 h1B Qe5 h2 Qe4 Be8 Qf7 Bh8 f6 Ne3 Qb5 Bg2 Qfc4 Bh3 f7 Bf6 f8R Bf5 Bh3 Nf1 Bg4 Bfg6 Qbf5 Bh7 Kc5 Bhg6 Rc1 a1N Bh5 Bh7 Bg6 Nb3+ Kb4 Bf7 Ra8 Be8 Ra1 Bg3 Ra5 Bc7 Ba1 Kc1 Ra6 Nbd2 Kc5 Rc2 Bc3 Nb1 Ra1 Ba5 Be1 Rc3 Bg3 Bfd8 Be5 Bg5 Bh8 Bf6 Bg7 Bg5 Qh3 Qd2 Qeg2 Bf6 Bd3 Be4 Qf5 Qe3 Bc2 Qd2 Bb3 Bc2 Qge4 Qd3 Ra3 Nbd2 Ra1+ Bb1 Ba4 Nc8 Bc2 Na7
2B1N1K1/n1B1Qn1R/2rb2n1/6r1/k3B2B/rNrQ4/Q3bpq1/1R1NQB1b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 g4 a4 b4 c4 e4 a3 d4 f3 e5 h4 d6 f6 Kg6 a2 Kf7 f5 b6 Kc6 e6 Kb5 d7 h3 e7 f2 e8N f4 b7 h2 d5 f3 d6 Rh4 g6 Ra3 g5 Re3 g7 Re5 g6 Ne7 g8B Rh3 g7 Nd5 Qe1 Ne7 Ne2 c3 Nd2 c2 Nc3+ Kb6 b5 Ka5 b6 Nd5 Nd1 Ne7 Rb1 a1R Nb3+ Ka4 Bh7 Rg5 g8B Ra3 Be4 Nbc6 b8Q Ng6 b7 Na7 Qa8 Qb6 d8B Bg4 b8Q Qb7+ d7 Bd6 Bf4 c1R Qc7 Rc6 Bf6 Rg3 d8Q Bh5 Qce7 Bg4 Bh3 f1N Bh7 f2 Kg8 Bf3 Bc8 Be2 Bg2 Nd2 Bf1 Rgc3 B4e5 Rh5 Bh4 Ne4 Qdd7 Ng5 Beg3 Bf4 Qd3 Bd6 Bf4 Nf7 Be5 Nf8 Be4 Ng6 Bf4 Bb4 Bc7 Bd6 Rg1 h1B Rg3 Ngh8 Rg7 Ng6 Rh7 Rb5 Qb8 Qa8 Qb6 Rg5 Qbd4+ R3c4 Qa1 Rc3 Qa2 R6c5 Bef5 Qg2 Be4 Rc6
1QbB4/BQ2KNb1/B4B2/R2Nr2N/r3pnB1/kb2q1r1/2r1n1RR/2n1R3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 Ke6 h4 f7 h3 d6 c3 g7 c2 f5 Qe8 f6 Nc6 b6 Rh4 b7 Ra4 b8Q+ Bb7 d8B Nh6 g8B Kb3 d7 Ng4 Ba6 Nce5 Qf3+ Kb4 Ne2 Ra3 Nbc3 Rh7 Bg5 c1N Ng3 Ne2 Rhe1 h1R Nh5 h2 Nd5+ Ka4 b4 Ne3 b5 Nd3 b6 Bg7 f8R Ng2 f7 Bc8 b7 Ndc1 Bf6 Rc3 Qe4+ Ka3 Qf3 Rh8 Bh7 Rg8 Bf5 Rg1 Bg4 h1B Qe4 Rh8 Rg8 Rc2 f8R Rh6 Rh8 Rg6 Rfg8 Rg5 Qa8 Rf5 b8B Rg5 Ba7 Rf5 Rb1 a1R Qb8 Raa2 Ra1 Rg5 Nc7 Rgc5 Nd5 Ngf4+ Ke5 e6 Kd6 e5 Rh6 Rg3 Rh7 Qg6 Ke7 Qf5 Qg2 Qe4 Rh6 Qe3 Qe4 Rd2 Qeb1 Be4 Q1b7 Bc2 Rhh8 Bb3 Rh7 Kb2 Rh6 Ra4 Ra3 Rb4 Ra5 Ra4 Be6 Rcc4 Bc7 Bh8 d8N Rg6 Nf7 Rdc2 Ng7 Re4 Rh2 Ka3 Nh5 Rg2 Rg3 Bg7 Bg4 Rg1 Bd8 Rg2 Rf3 Rg3 Rff2 Rd4 Rfg2 e4 Nb4 Rdc4 Bf5 Rc5 Bg4 Rg5 Nd5 Re5+
4N3/B1b1p1n1/B2Bn3/2QQrQRr/kBb1N3/qn1br2r/Q7/R1R1K2Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 b4 a5 f4 c5 g4 h5 d6 h3 g5 c4 b6 Kc6 d7 Kb5 d5 a4 f6 h2 f7 h4 g6 a3 b7 h3 f5 a2 g7 Rh7 d6 Rh5 f6 Qc7 d8R Rh8 d7 Nc6 b8B Qa7 Bd6 Ba6 Nc3+ Kb6 b5 Ka5 b6 Nd4 b7 Ne6 b8B Rh5 Bd2 Nh6 g8Q Nf5 Ne4+ c3 Ne2 Nfg7 N2g3 Bd3 Nf5 Kb5 Re8 c2 d8Q c1N B2b4 Qa3 Ba7 Nb3 Qc8 Ka4 Qc5 Bc4 Qdd5 Rb8 Rg1 h1R Rg5 h2 Rc8 Rb5 Qh7 Ne8 Qg8 Bh6 f8Q N8g7 f7 Ra5 Qe8+ Rb5 f8Q Rh3 Rg1 Bf4 Qec6 Rh5 Rg5 Bd3 Bdb8 Bc7 Nfd6 Bc4 Qff5 Bd3 Rb1 a1R Ne8 Ra2 Ra1 Re2+ Kd1 Re3 Qb7 Reh3 Ke1 Rg1 Qbc6 h1B Qgf7 Rgg3 Qa8 Ba5 Bd6 Bc7 Qg8 Bg2 Be2 Bf1 Qh8 Bb1 Bd3 Ra5 Ba6 Bbd3 Qhh7 Bfe2 Qh8 Re3 Qhh7 Nc1 Qa2 Nb3 Qad5 R5h4 Qh5 Rb5 Qhf3 Rh5 Qf1 Bc4 Qh1 Bed3+ Qe2 Rh6 Qcd4 Bd8 Qb7 Bd5 Rcc1 B5c4 Qc7 Re5 Qd5 R6h5 Qcc5 Reg3 Qef2 Bc7 Qa2 Re3+
3QN1R1/Q3rq2/3n1NB1/5Q2/1rq1NbBq/B2r1bn1/NRp1N2q/1BK1k3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 b4 c5 g4 f5 g6 h5 b6 a4 b5 f3 b7 a3 b6 f4 e5+ Ke7 g5 a2 g7 f2 g6 c4 e6 Kd6 e7 h4 Qh5 h3 Nc3 f3 Rh2 Ra3 Nge2 Na6 b8Q+ Qc7 b7 Nh6 g8B Nf7 g7 Rh7 Qa7 Nc5 b8N Bg4 Qf5 Ne4+ Kd1 Rh4 Nd7 Ng3 Bh7 Bh5 g8B Bh6 Rg2 h2 Bg6 h1Q Rb1 a1R Na2 c3 Nf6 Bf4 B8h7 Qc4 Rb4 Qh2 Rb2 Rg4 Rg1 Rb1 Bh3 f1Q+ Kc2 f2 Rg2 Rh4 Bg4 Qe1 Rg1 f1Q Rg2 Rb3 Rg1 Rb7 e8N+ Ke7 Rg2 Rh3 Rg1 Nd6 Rg2 Kd8 Rg1 Re7 Rg2 Nf7 d6 Qf3 d7 Nd6 d5 Qef2 Rb5 Rb4 Ba3 Qfe4+ Kd1 Qe6 Rg1 Qf7 Kc2 Re6 Rb8+ Ke7 Rb1 Qfd4 Rb2 Re3 Kc1 c2 d8N+ Qc7 Nb7 Qcc4 Nd7 Qdf6 Bg8 Qh4 Ndf6 Kf8 Nc7+ Kg7 Nc5 Kh6 Nce4 Rd3+ Nd2 Re3 Nce8 Re7 Ra8 Nh1 Rd8 Rhe3 Nde4 Ng3 Bh3 Bf3 Bg4 Nb5 d6 Rc3+ Nd2 Rd3 d7 Nd6 Rb8 Qg2 d8Q Qgh2 Qe4 Kg5 Rc8 Qhh7 Qf5+ Kh4 Nc7 Qd4 Qe8 Nge4 Nac3 Qf8 Ba2 Qff7 Bb1 Qdc4 Na2 Qh8 Qed7 Qh5 Rg8 Qg5 Nd4 Kg3 Qd8 Kf2 Nce8 Ke1 Ne2 Ng3 Qda8 Qgh4 Qd8 Rde3 Nde4 Rd3+
q1B3r1/8/1N1K2BN/B1RN1R1q/1b3q2/rBN4q/1kprQ2R/1n1QNb1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 h5 g4 c5 g6 f5 d6 a4 d5 c4 g7 a3 g5 f3 b6 f2 g6 f4 b7 f3 d7 a2 d6 c3 Bd2 h4 Ba6 f1R Rh2 f2 Qe2 Kb3 Nf3 c2 Nc3 h3 Ne1 Qc7 d8N Rh4 Ne6 Qd7 Nf4 Be7 Nfd5 Qe8 d7 Rh6 d8Q Nf6 g8B Rh1 g7 f1Q Be6 Qf8 g8N Rg6 Nh6 Rg8 Bf7 Nbd7+ Ke6 Rg7 b8R+ Bb4 e5 Rg8 Rb5 Ne4 Rc5 Nf2 Rc1 Qe8+ Kd6 a1Q e6 Ne5 e7 Nf3 Be6 Bd7 Bc8 Qh5 e8B Bb5 Bg6 Rg1 Bef7 Nh1 Qd7 Qa2 Ra1 Qa7 Ra5 Rg2 Qg4 Qf2 Qd1 Ba6 Qe4 Qfh4 Qee2 Qf4+ Qe5 Bc4 Nf6 Rg4 Nce4 Bc3 Rc6 Qfg5 Rg2 h2 Qe7 Rb8 Rf5 Ra8 Rcc5 Ng3 Qe8 Ka2 b4 h1Q b5 Q1h3 b6 Kb2 b7 Nh1 b8N Bf1 Rh2 Rg2 Nbd7 Qf4+ Qe5 Qb7 Bb3 Ra3 Nb6 Qa8 Nfd5 Re2 Be3 Rg2 Bd4 Nd2 Be3 Nb1 Bd2 Bd4 Bb4 Bc3 Ba5 Qfg4 Qe6 Bb4 Nec3 Rd2 Qee2 Qf4+
RbR1Q2B/1kn4B/2N1nnQ1/1b6/2n3rQ/1K1N1q2/pQ1R1qNr/RR4r1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 g4 Kc7 f6 h3 d6+ Kb6 g5 c4 g6 e4 f5 a4 f7 a3 d7 a2 g7 h4 d5 c3 d6 h2 f6 e3 Na3 h3 Bb2 e2 Nc4+ Kb7 b6 e1Q b5 Qg3 Qb1 Qf3 Ne5 Qg3 Ne2 Rh4 Nf4 Nc6 Bd3 Qf2+ Kb3 c2 Bh7 Nb4 Ng2 Nd5 Nd3 Nc7 Re1 Qe7 d8Q h1N d7 h2 Be5 c1R Qb2 Rg4 Bc3 Rc2 Reb1 Qe4 Qe8 Qef3 d8R Bc5 f8Q Bd6 f7 Nf6 g8Q Ng3 Qg6 h1N Qfh6 Nf1 f8R Bd7 Qh4 Nhg3 Rc8 Nf5 Bd4 Ng8 Bh8 Ng7 Rf4 Rb8 Rd4 Nge6 Rd5 Nf6 Rd4 Ka8 b7+ Ka7 Rd5 Ne3 b6+ Ka6 Rd4 Bb5 Rd5 Ra8 b8N+ Kb7 Nc6 Nc4 Rd4 Rc1 Rd5 Rg1 Rd4 Ka6 b7 Bh2 b8R Ra7 Ra8 Kb7 Rd7 Ra6 Nb4 Rd6 Rdd8 Rd5 Nc6 Rh5 Rd4 Rh6 Re4 Rh5 Re2 Bf4 Rd2 Rh6 Qhg5 Rh2 Qh4 Ncd5 Qf5 Bb8 Qfg6 Ndc7
1RB2RQN/Br1NN1rK/1Q5B/q1r3b1/k4N2/3b3p/nR1r2R1/2nR2qn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 h5 d4 a4 b4 h3 d6 h4 g5 h2 b6 Kc6 d5+ Kb7 b5 a3 d7 h3 d6 c4 f6 a2 Kf5 c3 Kg6 c2 f7 e4 f5 e3 f6 e2 Qd5+ Nc6 Nc3 e1Q Nge2 Rb8 Rb1 a1R Nf4 Raa8 Rb2 Qde7 d8Q Ra4 d7 Bg7 f8R Qc5 f7 Ra5 Qd4 Be5 Ncd5 Nf6 Ne7 Ng4 Qe3 Rg8+ Kh7 Nf2 g6 Bc3 g7 Bf6 Bc4 Qg1 Be6 Bg5 Qb3 Qg3 Rd1 h1R Qe8 Nb4 d8N+ Ka8 b7+ Ka7 b6+ Ka6 Qc6 Rh2 Qc7 Kb5 Bg4 Rba8 b8B Qg1 b7 Nh1 Ba7 Rd2 b8R+ Qb6 Qg3 Ba6 Bc8 Ka4 Qc6+ Qb5 Qb6 Na2 Qh2 Rd3 Qg3 Bh4 Nfe6 Rd6 Bh6 c1N Nf4 Qe2 Re8 Rd7 Rb7 Rb8 f8N Rc5 Nf7 Qd2 Nh8 Qa5 Qg2 Rdd5 Nd7 Rd2 Qg4 Bd3+ Qgg6 Rf8 g8R Rf6 Ref8 Rd6 Qf5 Rdc6 Rg2 Bf6 Qg6 Bg5 Nf5 Rf6 Qg8 Rg6 Ne7 Ne2 Qd8 Nec1 R7b5 Rb7 Rb6 Rbc7 Rb8 Rb7 Qb6 Rg7+
bK1B2bR/4bq2/4BnB1/2k1r2b/1RNRQn2/q1p1QR2/n2rQ2B/5N1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 h5 b4 a5 d4 c5 g4 f6 g6 h4 b6 f3 g5 c4 g7 a4 b5 f2 b7 h3 b6 a3 g6 h2 Bg2 f1Q Nf3 a2 Nfd2 c3 Na3 Bd7 Nac4+ Ke7 d6+ Ke8 Kd5 f5 e4 f4 e5 f3 e6 f2 e7 Qc7 Qe2 Nc6 b8R+ Qd8 b7 Nh6 g8B Na5 g7 Nc6 Be6 Ne5 g8B Ng6 Bh7 Ng4 Qe3 Bc8 Kc6 Nf4 d5 Nf6 Ba3 Qc1 Nf1 Ra5 Rb1 a1N Rb4 Nc2 Bhe4 Rh7 Bg6+ Rf7 Ra8 Qb2 b8Q Qd7+ Kb6 Qa2 Qb7 Qa1 Rg1 h1B Rb8 Rc5 Ka7 Rb5 B2e4 Bf3 Rg2 Bh5 Rg3 Qb2 Rf3 Qc1 Ng3 f1B Ka8 Bh3 Nf1 Bg2 Ka7 Qa1 Ra8 Ra5+ Kb8 Qa2 Bc1 Qa3 Qe2 Bh1 Qb6 Bb7 Qbe3 Rc5 Raa4 Ba8 Bd2 Bg2 Be1 Ra5 Bg3 Bh3 Bh2 Rc5 Rb2 Nb4 Rd2 Ra5 Rd4 Na2 Rb4 Rc5 Rf2 Bf5 Bh1 Bc2 Rf3 Bb3 Bef5 Qe6 Bg4 Kd7 e8R Be7 Rh8 Ne8 Bh3 Rf5 Bg4 Qf7 Qe4 Kd8 d7 Re5 B4f5 Rc6 Be6 Rd6 Q2e3 Bf8 Qe2 Ke7 Q4e3 Nf6 d8B+ Ke8 Rh6 Be7 Rh7 Ra6 d6 Kf8 d7 Rd6 Re4 Rd3 Rd4 Rd1 Ba5 Rd2 d8Q+ Ne8 Qd5 Nf6 Qde4 Ke8 Bd5 Kd7 Bb6 Ne6 Bd8 Nf4 Na5 Kd6 Rh8 Kc5 Be6 Bbd5 Nc4 Qg7 Bd7 Bg8 Be6 Qf7
BR3nQ1/7r/QB3kNR/7B/2b1Rbq1/N1pnqq2/4BB1N/1r1NKnn1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 b4 Ke7 e4 h5 g4 f5 d4 c5 g6 a5 g5 a4 d6+ Ke6 d7 f3 b6 f4 d5+ Ke5 d6 c4 g7 c3 b7 h4 b5 h3 g6 h2 b6 a3 Qd3 a2 Nh3 Qg5 d8N Rh4 d7 Ra4 Ne6 Kf6 d8B+ Be7 Qa6 Bd7 e5+ Kf5 Be3 Rh7 Nf8 Nf6 g8N Nd5 g7 Be6 Nf2 Rb4 Nf6 Nd7 g8B Bd6 b8Q Rb3 b7 Nb4 N6g4 Nd3+ Kd1 Bc4 e6 Bc7 Na3 Rb5 Rb1 a1Q e7 Qa2 Rc1 Rb1 e8B Qb2 Qc8 Qb6 b8R Qh5 Bd5 Qe6 Rg1 h1N Ba8 Ng3 Rh1 Ne2 Rh3 Qb6 Nh2 Qg4 Rh6 Ng1 Bh5 Bd6 Bc7 Kg5 Ng6 Kf6 Qg8 Nf8 Kc2 Qd4 Re1 Qe5 Bcb6 Qe8 Nd1 f2 Nb2 f3 Bec5 Qe7 Re5 Bc7 Be2 f1Q Be3 Qc5 Re4 f2 Bd4+ Be5 Be3 Qfg2 Bd4 f1N Bf2 Nc1 Kd1 Q2f3 Ke1 Bf4 Nd1 Qe5 Rd4 Qee3 Re4 Nd3+
n1Q4b/r4N2/1R1b1Q2/3Q1rN1/qNrB1NNp/2rb3B/3K1R1Q/k1qn3R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 g5 a5 b6 c5 b7 e4 f6 a4 f7 a3 b5 c4 b6 c3 g6 a2 f5 e3 f6 c2 g7 e2 Nc3 h3 Be3 c1R Ne4+ Kd7 d6 Kc6 d7 Kd5 Ng5 Kc4 d5 Kc3 d6 Kb2 Kd2 e1R Bd4+ Rc3 Ne2 h2 Bh3 h4 Nf4 Nh6 g8N Ng4 Nh6 Qe7 d8Q Qe8 d7 Bd6 f8Q Nf2 f7 Rf1 Qf6 Ra7 d8N Nd7 b8Q Ba6 b7 Nb6 Ng4 Bd3 Qc7 Rh7 b8N Qa4 Na6 Na8 Nb4 Rh6 Qf3 Nd1 Qd5 Rh8 Rc1 a1B Qg8 Rh6 f8R Rh7 Qb8 Rhc7 Ndf7 Rc4 Qc7 Rf3 Rc2+ Kb1 Rb8 Bb2 Rb6 Ka1 Qgc8 Rf1 Ng6 Rf5 Nf4 Bf8 Re1 h1Q Qce5 Be7 Qe2 Bd6 Qh2 Qe4 Rh1 Qf3 Ke1 Qe3+ Re2 Qc1 Rf2 Bb1 Ke2 Bd3+ Kf3 Be5 Qfd6 Rcc7 Be3 R3c5 Q6e6 Bd6 Qee5 Be4+ Ke2 Bd3+ Ke1 R7c6 Qg7 Bf6 Bd4+ Rc3 Qh6 Bh8 Qf6 Bc2 Ke2 Rc4 Ke1 Be4 Ke2 Bd3+ Ke1 Qb1 Kd2 Qc1+
nKBR1Bk1/3R4/1r1b1q1q/b2NRQ2/2b1B1p1/1RnrN2r/QN6/4Nr1N w - - 0 1 illegal: No possible last move
4B1bQ/1BqR2QQ/n2pRQK1/k4BB1/r5Nb/1q1N1N2/2Br1q2/nr1q4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 e5 Kd3 a5 Ke4 h5 c4 d6 g4 Kd7 f4 Kc7 b4 Kb6 g6 a4 g7 d3 g5 a3 g6 a2 c5+ Ka7 c6 Kb6 c7 h4 f6 h3 f7 h2 f5 d2 f6 Qe7 Nf3 Na6 Na3 Nb8 Bg2 Qd8 Nc2 Bg4 c8B Qd7 Ne3 Ra7 Qc2 d1R Re1 Be7 f8Q h1Q f7 Qe8 Bf5 Bh3 Ng4 Na6 Bg5 Nh6 g8B Rb1 g7 Rb7 Bgh7 Qg1 g8B Rd7 Qg7 Qh1 f8Q Ra7 Qff6 Qd8 Bf7 Qc7 Be8 Rf8 Re3 Qd1 Qd3 Qb3 Re2 Kb7 b6 Rh8 b5 Ra8 Ke3 e4 Kf4 e3 Re1 e2 Bhg6 Kb8 b7 Ka7 b8N Kb6 Nd7+ Ka5 b6 Rf8 b7 Rg8 Nge5 Ng4 b8Q Ne3 Ng4 Nc2 Nde5 Rh8 Bh1 Bg2 Qe4 Rh2 Nd3 Bd8 Qee7 Bf1 Qh7 Rf2 Qeg7 Rh2 Rc1 e1Q Bg2 Qf2 Re1 Be7 Re6 Ra7 Nde5 Bc4 Nd3 Rd1 Rb1 a1Q Rb2 Rb1 Qc8 Qc3 Rb7 Qb3 Qd8 Qaa4 Qa8 Na1 Qc8 Qb8 Rd7 Qc7 Qb8 Qd1 Qbb2 Qab3 Qgh8 Qc6 Qfg7 Qc8 Qbf6 Qc7 Bh6 Kb6 Kg5 Qc1+ Nd2 Qfg1 Nf4 Qgc5 Re1 Qg3 Bb7 Qge3 Nf3 Nb8 Bgf7 Ra4 Kg6 Qd1 Qe5 Bh4 Qef6 Rd2 Bg5 Na6 Bfd5 Qd3 Bde4 Q3b3 Bc2 Ka5 Nd3 Bg8 Re6 Qf2
2R2bn1/1qrbQN2/1p1n2Q1/1NN1RNBq/2B5/6qk/nQ1rQ1q1/3NKB2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 f4 Kf6 d4 e5 h4 c5 a5 g5 d6 c4 d7 g4 d5 e4 d6 e3 h6 e2 h5 c3 a6 b3 h7 b2 h6 c2 a7 b6 Rh5 g3 Nf3 g2 Nh4 g1Q Nc3 Qe8 d8Q+ Be7 d7 Qeg6 Qe8 b1Q d8N Q1g2 Ne6 Qh1 Nc7 Qe4 N7b5 Qg1 Ra6 Ba3 Qg6+ Ke7 f6+ Ke6 f5+ Ke5 f7 Qgd4 f8N Qb7 Ne6 Qde4 Bg5 c1N f6 Bf8 f7 Nc6 Nc5 Na2 Nf5 Qg2 Ra4 Be6 Rc4 Rd8 a8B Qbe4 Qd2 Bd7 Nd1 Qef3 Rc1 Na7 Qd3 Qbe4 Bd5 Nc8 Bc4 Nd6 Rc3 Qb7 Rc2 Be7 f8Q Rc8 Qfe8 Rc7 Qef7 Bf8 Qd2 Nf6 Qfg7 Rg8 h8N Qfh3 h7 Qhg4 Rh3 Qh5 Q7f7 Rg7 Ra3 Ng8 Ra5 Be6 Qe8 Rgd7 Qe7 Rd8 Nb3 Ke4 Nf7 Kf3 h8Q Kg4 Qb2 Kh3 Nc5 Bc8 Ra8 Be6 Rc8 Bd7 Qde3+ Qbf3 Q3e6 Qc6 Rd2 Qb7 Rd5 Ne4 Re5 Be8 Qd5 Rd6 Qdd2 Bd7 Qdc2 Rd4 Qd2 Nd6 Qdc2 Re4 Kd2 e1Q+ Kd3 Qf2 Qe2 Qg3+ Kd2 Rg4 Qf2 Rd4+ Ke1 Qgg4 Qfe2 Rd2 N5h6 Qgf3 Nf5 Qg3+
qNKB3r/Q1B1BQ2/1p1rn2N/qb2R2N/1b1n3B/8/QN1k2qr/5RqB w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 h4+ Kh6 f4 g5 a4 g4 d4 g3 a5 b3 a6 b2 a7 e6 f6 c4 d6 c3 d7 g2 f5+ Kh7 f7 c2 d5 b6 h6 Bg7+ Kd6 e5 f8Q e4 f6 Kg6 h7 Kf5 f7 e3 h5 Kf4 h6 Ne7 Nc3 b1R Qd2 Nbc6 Ra5 Ne5 Nd1 Nf3 Ba3 c1Q Ne2+ Ke4 Ng3+ Kf4 Nb2 g1Q Nh5+ Ke4 Bg2 Qf2 Rf1 e2 Bh1 Qe8 d8B e1Q Bc7 Rg8 h8N Qee3 h7 Nc6 Rb5 Rb8 a8Q Ba6 Qa7 Qg2 Qa5 Qe5+ Kd7 Ng5 Be7 Qa3 d6 Ke3 Qa4 Qec3 Re5+ Kd2 Qc4 Qd1 Qa2 Nd4 Qe8 Bf6 f8N Nge6 Nf7 Rh8 Nh6 Qca5 Qf7 Rb7 Kc8 Bb5 d7 Qaf3 Na4+ Rb2 d8B Bh4 Nd7 Be1 Nb8 Qe4 Bcd6 Rd7 Bc7 Qa8 Bh4 Rc2 Nb2 Rd6 Be7 Rc3 Bh4 Rh3 Be7 Rh2 Bh4 Rg8 h8B Rf8 B8f6 Rh8 Be7 Qdg4 Qg6 Qg1 Qe8 Q4g2 Qd7 Kc2 Qe8 Bb4 Qf7 Kd2
r1Qrbn2/4k1pN/2R1Nb1r/2R3Q1/1RqNnK1N/1Bq4R/R2Br3/B6b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 Kf3 a5 d4 f5 e4 c4 h4 a4 b4 c3 b6 c2 b7 a3 e5 a2 e6 Bd7 d6 Bb5 h6 Ra5 d5 Qc7 h7 Qc5 d7+ Kd8 h5 Bd6 e7+ Kc7 e8N+ Kd8 h6 Qa7 Ne2 Be7 Nd4 Nf6 Rh5 Qc5 Qd2 Qc7 Bc4 Ra3+ Bb3 Bc4 b5 Ra7 b6 Rf8 h8Q Ng4 h7 Ra6 Nf6 Bb5 Qg8 Ra8 h8R Qc4 Rg5 Ra6 Rh3 Nf2 Nh7 Re8 Bb2 c1Q Qe3 Ba4 Nd2 Q1c3 Rg6 Bg5 Qf8 Ne4 Qh8 Ke7 d8N Nd7 b8B Rg8 Be5 Nef6 b7 Bb5 Rgh6 Ne4 R6h5 Rh6 Bc7 Bf6 N8e6 Rc8 b8R Ba4 d6+ Kf7 Kg2 f3+ Kh2 f4 Rb4 f2 Rc5 f1B N2f3 Rg8 Nh4 f3 Qg5 f2 Bb8 Bg2 Bc7 Nb6 d7 f1R d8R Nd7 Rc8 Bh1 Bf4 Re1 Bd2 Re3 R8c7 Rb8 Rc8 Bb5 Qd8 Nf8 R8c7+ Bd7 R7c6 Re1 Qc7 Ke7 Qb7 Rd8 Qc8 Qc1 Bbc3 Be8 Bb2 Nc3 Kg3 Ne4+ Kf4 Q1c3 Rc1 a1R Rc2 Ra4 Ba1 Re2 Ra2 Ra8
Q1B1r1B1/3qBrp1/n1n1R3/Rq3bnQ/1BNk2N1/6K1/Nb1n4/q1R1N2B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 h4 f5 d4 c5 e4 a5 b4 f4 e6+ Kd6 e7 a4 e8B f3 e5+ Ke7 b6 c4 b7 a3 d6+ Ke6 d7 Kd5 h5 c3 b5 a2 h6 c2 e6 Na6 b8R Ra7 e7 Qb6 d8N Bd7 h7 Qg6 b6 Qd6 b7 Qa3 Bh3 Bc6 Bf7+ Ke4 e8B Bc5 Nc3+ Kf5 Bd2 Bd6 d5 Be5 d6 c1N d7 Bb5 Nc6 Qb4 d8B Nb3 Na5 Qf4 Bc6 Qh6 B8g5 Qh5 Re8 Bd3 b8N Ne7 Nc4 Nbc5 Ba8 Ne6 Nd7 Rg8 h8Q Bb1 Bg2 Nc6 Nf6 Be4 Bb7 g3+ Ke3 f2 Nf3 f1N+ Ke2 Nf8 Re6 Nh7 Rg1 Bc2 Bh1 g2 Kf2 Bd3 Be1 Be4 Qd8 Re8 Qa8 Bc2 Bc8 Rb7 Bg8 Rf7 Rb1 a1Q Na2 Be4 Rb8 Bb2 Ng4 Qd1 Bf6 Qd7 Bb4 Nd2 Rb5+ Kf4 Ra5 Qb5 Bh4 Bf5 Bhe7 Ng5 Qh4 Bf6 Qh5 Bb2 Rg6 Ke4 Kg3 Kd3 Rd1 Ke4 Re6+ Kd3 Nh4 g1Q+ Ng2 Kd4 Ra1 Qb1 Ne1 Qe4 Rd1 Qb1 Rc1 Qa1
K3b2R/2Bp1RN1/r1Qr1Bkn/2q1Q1b1/q2b4/QBr2Q2/4rQ2/2RNR2n w - - 0 1 illegal: No possible last move, all moves rejected
1q1q1B2/p1Bb3k/b2BN1nq/3R1b2/1N1r1nR1/1N4r1/1Q1BKb1R/1N1B1Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kg7 d4 e5 f4 h5 d6 c5 d7 c4 g5 h3 g6 e4 b6 c3 d5 h2 d6 e3 b5 e2 b7 h4 b6 h3 f6+ Kh6 f7 c2 f5+ Kg7 Bd2 c1Q Nf3 Rh6 f6+ Kh8 g7+ Kh7 Ra5 Ne7 g8R Qdc7 d8N Rg6 d7 Nbc6 b8Q Nb4 b7 Rg3 Nd4 Ng6 Nb3 Bc5 Ne6 Qd8 f8B Bd4 f7 Qb2 Rg1 h1B Rd5 h2 Bd6 Be4 f8B h1B Rg2 Bf5 Rf2 Bhe4 Rh2+ Bh3 Bg2 Bf5 Bf3 Bb6 Bg4 Qg7 Qc1 Qh6 Qb2 Be3 Qc7 Bb6 b8B Ba6 Qcc1 Bg1 Bbc7 Bc5 B2f4 Nd3+ Kd2 Bd4 Qf1 Bf2 Bf3 Qb8 d8N Bhg4 Nc6 e1Q+ Kc2 Qc3+ Kd1 Qf6 Nb4 Qfd8 Ke2 Bh3 Ng7 Bd7 Bd2 Bhf5 Ne6 Qb7 Qe5 Rc8 Qb2 Qb8 Ba5 Rc4 Bac7 Nh8 Rg4 Ng6 Be4 Ne1 Bc2 Nd3 Bd1 Rf4 Qh3 Rd4 Qf1 Ndf4+
2n1B2K/pBn2B2/1r2bB1N/R1nR1qB1/5q1Q/1Rn1QNr1/1b1r4/3kNN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 f5 g4 c5 e4 h5 d6 c4 b6 h4 d5 f3 g6 c3 d7 c2 g5 Kb3 g7 f4 d6 h3 g6 f2 b7 h2 Qd2 f3 Ra5 Nf6 g8B+ Nd5 g7 Rh7 Bf7 Be7 g8N Rg7 Nh6 Qb6 d8B Rg4 d7 Qc5 Qe3+ Kb4 Nd2 Qb6 Bg2 Rg3 Nf1 Na6 b8N Nac7 Nc6+ Kc4 b4 Qb8 b5 Bf6+ Kf5 Bb2 Nd4 Kb4 e5 Nc3 Bd2 c1N Kf6 Nd3 b6 Nc5 e6 Kc4 b7 Kb4 Ndf5 Kb3 e7+ Kc2 e8B Kd1 Nh4 N5a4 Be7 Nb6 d8R Be6 Rdd5 Qc8 Bd8 Rb8 Be7 Qd7 Bd8 Qb5 Be7 Rd8 b8Q Nc8 Qb7 Qd7 Qb4 Qa4 Qg4 Qf4+ Kg7 Rd6 Bf6 Rb6 Kh8 Qf5 Nh3 Qf4 Rg1 h1R Ng5 Rh2 Bh1 Qf5 Ng2 Qf4 Ne1 Rhg2 Nh2 f1Q Qh4 f2 Ngf3 Qd3 Bc1 f1N Bd2 Qdf5 Bc1+ Nd2 Nf1 Re2 Rg2 Rg4 Rg3 Rf2 Rh3 Rg3 Qd3 Rg5 Nd4 Qg3 Rdb5 Na4 Bb7 Rg7 Qa3 Ne4 Rd5 Nec5 Qc3 Rg4 Bcg5 Qgf4 Re3 Rd2 Ndf3 Rg2 Qe5 Rg1 Rb3 Rg3 Qe3 Nc3
2r3BR/4r1kB/1B3b2/1R3B1b/b1rRq3/2b3nN/pn4K1/NQ1QrQRB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 g4 Kf7 d4 c5 e4 h5 b4 a5 g6+ Kf6 e5+ Kg7 b6 a4 b7 h4 b5 f3 b6 h3 e6 c4 e7 a3 e8B f4 d6 h2 d7 c3 g5 a2 d5 c2 d6 Be7 Na3 Ra7 Bh3 Qc7 d8Q Qc6 d7 Na6 b8R Bf6 b7 Qe4 Be3 c1B Bb6 Nh6 Qf1 Nf5 Nc2 Ng3 Bf5 Bd2 Nh3 Nc5 Bf7 Rh4 Bd5 Bdc3 Rb1 Ra8 Rg1 h1B Rb5 Na4 Na1 Nb2 Bc6 Ra7 Ra8 Rh8 b8Q Rc7 Bd5 Rc4 Ra4 Re8 Ba8 Bb7 Rab4 Rc8 Rd4 Bd5 Bb7 Bb3 Bc6 Ba4 Qb7 Kf8 g7+ Kf7 g8B+ Kg7 g6 Re7 Bh7 Bg2 Qd1 Bf1 Qa6 Be2 Ba8 Rc4 Qb8 Rc8 d8R Rc4 Re1 Rc8 Kg1 f2+ Kh2 f1R Rh8 Rf3 Rg1 Re3 Bd5 f3 Bc6 f2 Qbb7 Qe5 Bh1 f1R Kg2 Bh5 Qe4 Rfe1 Qeb1 Kh6 g7 Re4 g8B Kg7 Rbb4 Rg4 Qf1 Qe3 Rb5 Qd3 Rd8 Rgc4 Rd4 Qe4+
Q2BR1Bk/1RB2b2/n3Nb2/1n3rnN/1K2bR2/p2B3N/2q2bn1/1BN1Q1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 Kd2 Kg7 Kc3 h5 b4 c5 g4 a5 g6 c4 b6 a4 d6 f3 d5 f4 d7 a3 b5 h4 d6 f2 b7 f3 e5 h3 e6 h2 g5 Nh6 b6 Be7 Bf4 Kg8 g7 Rh7 Bd3 f1N Nh3 f2 Nd2 Ra6 Nb3 Ng3 Rb1 f1N Kb4 c3 Qe1 c2 Nc1 Ne3 Rf1 Qe8 d8B Bf6 d7 h1B e7 Qg6 e8B Ne4 Bfc7 Ra5 Rf4 Nc3 Rb3 Qf5 Bg6 Nb5 Rb1 Be4 Rb2 Rh8 Bh7+ Kf7 g8N Kg7 g6 Nf7 Rb3 Ng2 Rb2 Bh4 Nf6 Rg8 Rb3 Bf2 Nh5+ Kh6 g7 Ng5 Be7 Qg6 d8N Be6 Rb2 Bf7 Ne6 Qf5 Bed8 Qg6 Kb3 Na6 b8Q Qf5 b7 Qg6 Qa8 Qf5 Ne2 c1B b8R Qc5 Rb1 Bb2 Nc1 Bf6 Rb7 Qf5 Rb2 Qc5 Re2 Qc3+ Ka2 Qd2+ Kb3 Qb2+ Kc4 Qc2+ Qc3 Beg6 Rf5 Qa4+ Qb4 Na7 Bc2 Nf3 Be4 Nf4 Bb1 Qc2+ Qc3 Rd5 Nc5 Nb5 Re8 Re5+ Ne6 Rd5 Rg5 Re5 Rg4 Rg5 Rh4 Rg1 Rg4 Ng2 Ng3 Rh8 g8B Bf5 Bg6 Rh7 Re4 Rg7 B6h7 Rg5 Rf4 B5g6 Nh5 Rd5 Ba5 Ng5 Bab6 Nc5 Kb4 Na6+ Ka5 Bd3 Qe1 Re5 Be4 Rf5 Bbc7 Kg6 Bf3 Be4 Be2 Kh6 Bd3 Bg6 Bf7 Kh7 Bg8+ Kh8 Bf1 Qc6 Bfd3 Bf7 Ka4 Qc2+ Ka5 Nc5 Kb4 Na6+
1Nk5/nNNq1Qb1/bBn2Rr1/B1bK1b1p/8/r3RBB1/1Nn1n3/BQ2Q3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 h5 Kd4 a5 g4 c6 f4 e6 b4 a4 g5 h3 g6 h2 b6 a3 g7 a2 b7 Ra6 d6 Rh6 f6 Rh8 f7 Ra4 f5 Na6 b8B Qa5 f6 Nc5 Nc3 Qa6 Bg2 Qa8 Nb5 Rh7 Qe1 Qa5 Bf3 Qc7 Bb2 Qb7 Nc7 Ne4 Nh3 Qa6 Nf2 Qa5 Nd3 Kd8 d7 Ra3 b5 Qa7+ b6 Nd6 Rf1 Ne7 g8Q h1B Qg6 c5+ Ke5 c4 b7 Bg7 f8B c3 Rc1 c2 Ba1 Rh8 Nb2 Nb5 d4 Rg8 d5 Nc6+ Ke4 e5 f7 Bg2 Bc5 Bh3 Bb6 Bg4 Rd1 c1N Rd3 Ne2 Re3 Bf8 Qf5 Bc5 Qh7 Rg6 Ba5 Ke7 d8B+ Kd7 d6 Bf5+ Kd5 e4 Bb6 Qa4 Ba5 Nba7 f8Q+ Rg7 Be7 Rg8 Qff7 Rg6 Bf8+ Kd8 d7 Qb5 Bd6 Qa4 Bg3 Qb5 Rb3 e3 Bb6 Ng1 Rf2 e2 Re3 Qa4 Be5 Qb5 Bc3 Qa4 Bca5 Qb5 Qb1 e1N Qhg7 Nc2 Qc3 Ne2 Qce1 Bh3 Be4 Bg4 Rf6 Bf5 Qg8+ Ke7 d8N Kd7 Bf3 Qa4 Nb5 Qg4 Bg3 Qh3 Ne6 Qg4 Nec7 Qh3 Qg7+ Kd8 b8N Ba6 Qf7 Kc8 Nd4 Qg4 Nde6 Qh3 Nd8 Qg4 Nd1 Qa4 Nb7 Qb5 Bd4 a1B Nb2 Ra2 Nd1 Nd8 Rd6 Ra3 Bf6 Qd7 Bd4 Bb2 Bdc3 Bc1 Ba1 Bd2 Nb2 Bc3 Qf8 Bg7 Qf7 Qe7 Rde6 Ndc6 Rf6 Qd7+
r1rBn2N/3Q1b2/6B1/n1k2pR1/5Q1Q/2qQbR2/r1r2QR1/KbB2bNR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 Kd6 Kc2 c5 b4 a5 Kb2 h5 e4 h4 g4 f3 e5+ Kc7 b6+ Kb7 e6 a4 e7 f6 e8Q f2 d6 h3 b5 h2 g6 c4 d7 Nh6 g5 Qe7 d8Q Rg8 g7 Qe2+ Nd2 Na6 g6 Ng4 d5 Ne3 d6 Nc7 d7 Qd3 Ne4 Bc5 Ra3 c3+ Ka1 c2 Ng5 Nc4 Nf7 Na5 Nh8 Be3 Qf8 Qb3 Bd3 f1B Qfe8 Rf8 g8R Qc4 Qee7 Ne8 g7 Qb4 Bg6 f5 Rc3 a3 Qd3 a2 Qh4 Qc4 Qde7 Qc7 d8B Be6 Qed7 Bf7 Rc4 Rb8 Rf4 Rc8 Rf3 Ra8 Kb2 a1R Qf2 Ra4 Qh4 Rd4 Ka1 Rb4 Qf2 Rb2 Qh4 Kb8 b7 Ka7 Qf2 Kb6 b8Q+ Kc5 b6 Qe5 b7 Qc3 Qf4 Rc8 Q4h4 Ra8 Bd2 Rc8 b8Q c1R+ Qb1 Rcc2 Bc1 Rd2 Qbf4 Re2 Qbd3 Rec2 Nh3 Ra8 Rg1 h1B Rg5 Ba2 Ng1 Bb1 Rg2 Rf6 Rf8 Rc6 g8R Rcc8 Rg5 Bhg2 Rg7 Bh3 Rh7 Bg4 Rg8 Bh5 Qhg3 Bg4 Rh1 Bh5 Qgh4 Bd4 Rg2 Be3 Bh7 Bf7 R8g5 Qd2 Bg6 Qb4 Qde2 Qc3 Qed3 Ra2+
Nb6/b2bR1r1/2q1Q3/nBBp2NK/Br1bn1Bn/5RRn/k2B4/3QN2N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Kg4 a5 b4 h6 f4 d6 c4 a4 g6+ Kf6 g7 a3 c5 d3 c6 a2 b6 d2 c7 e4 b7 e3 b5 e2 b6 e1B Rh3 Ra6 Rg3 Bf2 Bb5 Kf7 Kh5 Ra4 f6 Ke6 f5+ Kd5 f7 Kd4 f6 Rc4 Ne2+ Kd5 Na3 Rb4 Nc2 Rd4 Ne1 Be6 c8B Ne7 g8Q Nbc6 b8R Na5 Rb7 Ng6 Re7 Rh7 b7 Qd7 b8N Nh4 Na6 Rb4 Nc7+ Kc5 Na8 Rg7 Rf3 Qc6 g4 Bd7 g5 d5 g6 Bd4 Ng3 Bf2 Ba4 Kc4 Nh1 Ba7 Rb1 a1B Rbb3 B1d4 Ba6+ Kc5 B6b5 Bb8 Qe2 d1N Bd2 Nf2 Qd1 Nh3 Rg3 Ba7 Rbf3 Bb8 Re6 Bfd6 f8B Ba7 Re7 Bdb8 f7 Rb3 Bc1 Kb4 Be3 Ka3 Bd2 Rh7 g7 Ka2 Re2 Rb4 Bc5 Rc4 Qe8 Rb4 g8B Rg7 f8N Ng6 Ne6 Ng1 Kg4 h5+ Kg5 h4 Kh5 h3 Nf2 Nh4 Ng5 Be3 Be6 Bd4 Bg4 h2 Rg2 h1N Rgg3 Nh3 Qg6 Bf6 Re7 Bfe5 Nfe4 N1f2 Qe6 Nd3 Nf2 Bd4 Nh1 Ndf2 Rf8 Ne4 Rf2 Qb6 Rff3 Qc6
rQ3b1B/BQ2rRbb/2R3Q1/KNpR1bQ1/R7/n1R1nq2/kN6/2n2B1n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 e5 Kd2 a5 Kc3 e4 g5 e3 b6 h3 g6 a4 b7 h2 f6 c6 f7 a3 b5 a2 Kb4 h4 g7 h3 f5 e2 b6 e1N f6 Qe7 Nc3 Rh4 Bb2 Qe5 Nb5+ Kd7+ d6 Ke6 Qf3 Qe4 Ne2 Kd5 Nec3+ Ke6 Nd1 Na6+ Ka5 Kd5 b8Q c5 b7 Rh6 d7 Rg6 d8R+ Bd7 Qg2 Nh6 g8Q Rg5 Qg6 Nf5 Rc8 Be6 Rc6 Nd3 Qg4 Kc4 d5 Kb3 d6 Nc1 d7 Ne3 d8R Bc8 Rd5 Re5 Q4g5 Re7 Bd4 Qg2 Nb2 Nb4+ Qa7 Qf3 b8B Nbc2 Bc3 Ba6 Qb7 Na3 Rg1 h1B Ba7 h2 Rg3 Bg2 Bd4 h1N Be5 Bh6 f8Q Bh3 f7 Bf5 Bh8 Bg7 Qfb8 Bf8 Rb1 a1B Rg4 Ne2 Rc1 Ka2 Rc3 Nc1 Rb4 Nb1 Ra4+ Na3 Nc7 Bad3 Nb5 Bh6 f8R Bg7 Rf7 Bf8 Rb3 Bde4 Nd3 Bag7 Nb2 Bd3 Rc3 Bb1 Qe6 Bh7 Qeg6 Bf5
1RQ2B1N/Qn4nn/3r2p1/1nQ4r/1RKQr1Bb/RrBR3b/7Q/Nk2q3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 f4 Kc5 h4 Kb4 h5 a5 d6 c5 b6 e5 h6 g3 f6 a4 b7 g6 f5 g2 h7 a3 d7 a2 f7 Qe7 d8R Bd7 f6 Qe8 Na3 Ra5 Be2 Be7 f8B Bh3 f7 Nf6 Nc2+ Kb3 Nf3 g1R Ng5 Ra6 Bg4 Nbd7 b8Q+ Rb6 Qc7 Nh5 Qa7 Ng7 Rb1 Nf6 Na1+ Kb4 Qe2 Rd1 Qh2 Rb7 b3 Rb5 Bb2 e4+ Ke2 c4 d4 e3 d5 c3 d6 c2 d7 c1R Rb8 Rc7 d8R Rc4 Rd3 Re4 Rg1 Rb6 Rg3 Rb7 Be5 Rb5 Qd4+ Ka3 Qc5+ Rbb4 Qc8 Rb6 Bc3 Rd6 Rb2 Rb1 b4 Bd8 b5 Qe7 Rc2 Rb3 b6 Qe6 b7 Qe8 Ke1 e2 Kd2 e1N Rb2 Nc2 Rf3 Nd4 Rg3 Rg8 h8Q Nb5 Qh4 Rh8 Rf3 Re5 Q4f2 Re4 Qd4 Rh5 Rb1 Nh7 Rb2 Rb4 Rfe3 Ra4 Rb4 Raa6 Rf3 Rab6 Rde3 Ra6 Kd3 Qe7 Rf2 Qf6 Ra8 Re7 b8Q Raa7 Kc4 Ree6 Rd3 Re3 Qcc5 Qe5 Be7 Qg3 f8Q Re4 Nb3 a1N Nf7 Qg1 Nh8 Qe1 Qbb6 Ra5 Rb8 Ra7 Nd2 Ka2 Nb3+ Kb1 Ra2 Ra5 Qff5 Ra3 Bf8 Bg5 Qa7 Bh4 Na5+ Nb3 Qfc8 Kc1 Qce5 Nc5 Nb3+ Kb1 Na1+ Rb3 Ra3 Nb7 Qe7 Rd7 Qec5 Rd6
2bN1r2/1Bk1N3/1RpnQ3/6K1/3B3R/Nn1nbbrq/BB3b2/1nNBQ1Q1 w - - 0 1 illegal: No possible last move
1bQ1B1RQ/r1B1B2R/2r1p1bn/3rB1R1/1K1n4/2NQQ1p1/5Q2/kq2N1nb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 Kf6 h4 a5 c4 d5 b4 g5 h6 e6 h5 d3 Kc3 a4 c5 a3 c6 g4 h7 d2 b6 a2 b5 g3 h6 Nd7 b7 Qe8 b8Q Bb7 c7 Ra4 c8Q Ba8 b6 Ba3 b7 Qf8 Nf3 Ra6 Bb2 Ne5 Qa7 Bd6 Ne1 Bb8 Bb5 Nf3 Be8 Ng1 Qe3 d4+ Kc4 Ra5 Nc3 d3 Rb1 Rc5+ Kb4 a1N Rh5 Qd6 Rg5 Nb3 Ra1 Nd4 Ra7 Qa6 Qc2 d1R Qb3 Bd6 b8B d2 Bc7 Qd3 Qc4 Qb1 Qcd3 Bh1 Ra8 Ne7 Rb8 Rg8 h8Q+ Rg7 h7 Ng8 Rb7 Nh6 Qf8+ Nf7 h8Q Be5 Ra7 Rd5 Qc5 Rc1 Qf2 d1B Qb6 Nb3 Qbe3 Bh5 Ba1 Nh6 Bb2 Bg6 Ba1 Ng8 Bb2 Nd4 Rb7 Ke7 f6+ Kf8 f7 Ke7 f8B+ Kf6 f5 Nh6 Bb6 Bb8 Bd6 Be4 Be7+ Ke5 f6+ Bf5 Qed2 Bh1 f7 Rc2 f8R Rc1 Rg4 Bg6 Rg8 Rc2 Nb5 Rcc5 Nc3 Rc6 Bc7+ Rcd6 Na4 Nf5 Bg5 Nh6 Ba5 Rc6 Qc4 Kd6 Qcd3 Nb3 Qd2e3 Rf7 Bbf6 Rd7 Nc3 Nd4+ Ka4 Kc5 Be5 Rdc7 Bd8 Rcd7 Rg5 Rdc7 Rb6 Ra7 Rb7 Nh3 Rh7 Ng1 Qdf5 Kc4 Be7 Rb7 Bac7 Ra7+ Qa6+ Nb5 Ka5 Kb3 Qfd3 Nd4+ Bc5 Nde2 Kb5 Kb2 Qc8 Ka1+ Kc4 Qd1 Kb4 Nd4 Be7 Qb1+
6bK/5NN1/2p2b1Q/2r2n1n/1NB3n1/q1kNQpB1/r2r3R/NQBQ1R1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 a5 h4 g5 d4 f5 d6 f3 d5 g4 d7 a4 h6 f2 b6 a3 b5 g3 e4+ Kb4 h5 a2 h7 g2 b7 f4 b6 f3 h6 Ra4 d6 Ne7 Kf6 Ra5 e5 Na6 b8B Rb5 b7 Qe8 d8Q Rd5 e6 Qc6 d7 Qc4 Nh3 g1N Nd2 Rg5 Qe8 Qh4 d8N Kc3 Nf4 Nc5 Nd3 Qa4 Nc6 Qa3 Rh2 Ne2 Nb3 Ng3 Ncb4 Nef5 e7 c6 Bc7 Be6 b8Q Rhg8 h8N Bf7 Be2 f1B h7 Bg2 Qb6 Bd5 Nf7 Bh1 h8Q R8g7 Rb1 a1R Qh6 Ra2 Na1 Be6 Qeb8 Rg8 e8N Nh5+ Ke5 Rh8 Ng7 Ne4 Qe3 Nf2 Qb7 Bc5 Bf1 Rd8 Bd6 Nhg3 Kf6 Bd4+ Be5 Rh5 Kg6 Ng4 Kh7 Rd7 Kh8 Rg5 Bf4 Nh5 Bg3 Bf6 Nde5+ Rd3 Qde1+ Rd2 Nd6 Qa2 Na6 Bd5 Ba3 Bg8 Ndf7 Nd4 Rd1 Rf5 Bc1 Qa5 Q1e2 Ra2 Qb1 Nf4 Nb4 Nh5 Re1 Qa3 Qd1 Rg5 Be2 Rf5 Rf1 Rg5 Qg1 Rdd2 Bc4 Rf5 Ned3 Rc5 Qge3 Nf5
Q1Q3R1/2R3NQ/B1b1q2K/1n3Q2/N2Rnr2/1k1pp2b/1B1b1nr1/1R2q1NQ w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 a5 h4 g5 f4 e5 b4 d5 h6 d3 Ke3 e4 b6 a4 h5 a3 c5 d2 b5 g4 f6 Ke6 b7 g3 h7 a2 c6 g2 h6 Qe7 c7 Qg7 f7 Ne7 f5+ Kd6 Kf4 Kc5 b6 Kb4 f6 d4 Nc3 e3 Bb2 Nbc6 b8R Ne5 b7 Ng4 Rh4 Nc6 Rb1 a1Q Ba6 d3 Na4 Rg8 h8Q Nf2 h7 Bh3 c8R Ne4 Rc7 Qg6 Qg4 d1B Qf5 Be7 f8N Nd4 f7 Nb5 Ne6 Bf3 f8Q Kb3 Ng7 Bb4 Q8c8 Bd2 Rg4 Qe6 Rh4 Nc5 Kg5 Bc6 Rd4 Ne4+ Kh5 Rf8 Qg8 Rf6 h8Q Ra7 Qgh7 Rg6 Nf3 g1N Ra8 Rg2 b8Q Nf2 Qbb7 Ne2 Ng1 Nc3 Rb8 Nce4 Qa8 Qc4 Kh6 Rb7 Qcd7 Rb6 Rg8 Qe6+ Qhg6 Rb8 Qh7 Rd8 Qdc8 Rf8 Qf3 Rf4 Qf6 Rg3 Qh1 Rg2 Qfg6 Qa3 Qf6 Qc5 Qfg6 Qc1 Qf6 Qe1 Qfg6 Qe5 Qgf5 Qe6+
R2rB1K1/2n1n2r/RQ2RB2/2BN1R1Q/bQ4np/3q2kN/Q4b1p/1qR3b1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Kf4 d4+ Ke4 f4 c5 g4 a5 b6 e5 d6 h5 b7 h3 b5 a4 b6 a3 d5 a2 d7 h2 d6 h4 f6 Ne7 g5 Nec6 f7 Ra7 f5 Qf6 d8Q Ra6 g6 Rh7 d7 Bd6 f8Q Rh6 g7 Ra8 g8Q Na7 Be3 Nac6 Nh3 Be7 Qh5 Qg6 f6 Na6 b8R Rh7 f7 Nc7 b7 Bf6 Be2 Ne7 Rc1 Bg5 Bf2 Be3 Bg1 Bf2 Nc3+ Ke3 Bd1 e4 Ba4 Qf5 Qg2 Qf3 Nd5+ Ke2 Rab1 a1N Rb6 e3 Ra6 Nc2 Qgg8 Ne8 Qb6 Nc7 d8R Bd7 Re8 Bc6 Rbd8 Rb8 Rd6 Rd8 b8B Bd7 Re6 Bc6 Qhh6 Qg3 Qhg5 Kf3 Qh5+ Kg2 Ba7 e2 Bb8 e1B Bb5 Na8 Be5 Nc7 Bf6 Qg6 Ba4 Kg3 Bb5 Bd2 Ba4 Bde3 Bb5 Rd7 Rea8 Rd6 Qfb8 Rd8 f8R Be8 Ba4 Bd7 Qb4 Bd4 Q8b6 Ne3+ Kb3 Ng4 Kc4 Bc8 Be8 Bd7 Bh8 Ba4 Rf5 Bde3 Bf6 Bd4 Kd3 c4+ Ke4 c3 Qf7 c2 Qg8 Ba1 Qf7 Be1 Bc5 Bd4 Qg8 Bg1 Qf7 Ne3 Ke5 Bef2 Rd6 Nb5 Ke6 Ng4 Qg8 Qh6 Rc6 Qd2 Qgf7 Qd3 Qg8 Rh6 Kf7 Nc7 Re6 Rh8 Rd1 c1Q Rf1 Qb2 Rc1 Rh7+ Kf8 Qbb1 Qgf7 Ng6+ Kg8 Ne3 Qe2 Ng4 Qa2 N6e5 Qg6 Nc6 Qh5 Ne7+
1rR5/B1BR4/2B2kN1/3bqb1K/B4pQ1/nQ1nq2p/BR2Qbr1/NQ2q3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 c5 e4 h5 d4 a5 g4 f5 b4 h4 g6 c4 g5 c3 b6 c2 b5 h3 g7 a4 g6 a3 e5 a2 d6+ Ke6 d5+ Kd7 e6+ Ke8 b7 Ra6 b6 Qe7 d7+ Kd8 Be3 c1Q Nd2 Qb2 Bg2 Rh5 Nb3 Rh8 Rb1 a1Q Ne2 Qe5 Rb2 Qa2 Na1 Nc6 b8Q Nh6 g8Q Ra7 b7 Qg5 g7 Ke7 d8R Qb3 d6+ Kf6 e7 Qbb5 e8B Qb4 d7 Ra2 Ba7 Ng4 Qc4 Qd2 g8B Bc5 Qdc2 Qc1 Rd1 Nb4 Q2b3 Qb1 Qa8 Ne3 b8Q Qh6 Qae4 Nec2 Be6 Bb7 Rc8 Na3 Bh1 Bd5 d8B+ Kg7 Bc6 Nd3 Bc7 Bf2 Ba4 Kf6 Qcc2 Qc1 Q8b5 Qd2 Qb1 Qe1 Qe8 Rg8 Qh5 Rg2 Qg4 Qg5 Nd4 Qh6 Nc6 Qg5 Ne7 Qh6 Rc2 Rb2 Ng6 Qg5 Qc3 Rb8 Rb2 Bb7 Ba2 Bd5 Qb3 Qa5 Ke2 f3+ Kf1 Qe3 Qec4 Nb4 Qe2 f4 Rd3 Bg1 Ke1 f2+ Kd1 f1B Ke1 Be6 Rd7 Nd3+ Kd1 Rh2 Bhc6 Bf2 Qef3 Bg2 Qe4 Qg3 Ke2 Bf5 Qe3 Bd5 Qe4 Qg1 Kf3 Bf7 Qee1 Rg2 Qe2 Qae1 Qg3 Be4+ Kg4 Bf5+ Kh5 B7e6 Qgg4 Bd5 Qec2 Q1e3 Qce2 Qe1
nQqk4/2rq4/B4KNR/nRQ1NrRp/4RBb1/b1B2p2/5Bbr/1R3Q2 w - - 0 1 illegal: No possible last move
B2n3k/1r6/NbQKQ3/1R2pQ2/B3N2p/1nQq1RB1/brN3q1/QN1b2q1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kg7 Ke4 c5 Ke5 h5 d4 a5 g4 a4 f4 a3 b4 h3 g5 a2 d6 h4 d7 h2 d5 e6 b6 c4 d6 c3 f6+ Kh7 g6+ Kh6 g7 Kh7 b7 c2 f7 Ra7 b5 Qa5 d8N Ra6 f5 Bd7 f6 Be8 d7 Qa4 b6 Qc4 Nh3 Bc5 f8Q Ra7 f7 Bd4+ Kd6 e5 Ne6 Nh6 g8B+ Kg6 d8Q Bb2 Qde7 Qf4 Bb5 Qf5 Nhg5 Qd3+ Nd4 Qc4 Bf4 c1Q Ba4 Nd7 b8Q Qd2 b7 Qcd3 Bg3 Nc5 Rf1 h1B Qbc7 Qg2 b8N Rb7 Ne4 Nb3 Rf3 Bc3 Qc6 Ba5 Qf1 Bb6 Na6 Bd7 Qd1 Bg4 Qfc8 Kg7 Qee6 Rh7 f8Q+ Kh8 Qff5 Nf7+ Kd5 Nd8 Kd6 Bh5 Qc3 Rb8 Q8c6 Rhb7 Qg1 Qe3 Nc2 Qd3+ Qgd4 Bg4 Nbd2 Bh5 Rb1 a1Q Rb2 Qag1 Nb1 Nc5 Rb5 Nb3 Re3 Be2 Rf3 Bd1 Qe7 Q2f2 Bd5 Bg2 Qef7 Bh3 Qa1 Qfg2 Q7e6 Bg4 Qdc5 Bh5 Qb4 Bf7 Qbc3 Rc7 Qed7 Nd2 Rb3 Bd4 Q6c4 Rb5 Ba8 Rcb7 Qcc6 Bb6+ Nd4 Bd5 Qde6 Rb4 Nc2 Rb5 Rb4 Ba2+ Rd4 Rb2 Rd5 Qb5 Rc5 Nb3 Rd5 Qbe2 Rb5 Qd3+
2RK1B1R/1r1bRNN1/qQB1Nq1b/1QB1p1n1/Rbp1rq2/8/2n3R1/6Bk w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 a5 g4 e5+ d6 h5 d4 c6 b4 h3 b6 a4 g5 h2 b5 a3 g6 a2 b7 h4 d5 h3 b6 Qf6 g7 Qh6 f6 Ra4 f5 Be7 f7 Qh5 f8B Qf7 f6 Qe6 f7 Ra5+ Bb5 Rh7 Na3 Qg6 Qa4+ Kf5 Nc4 Kg4 Nf3 Kg3 Be3 Kg2 Nh4+ Kg3 Bg1 Ra8 Nf5+ Kg2 Qa7 Bg5 d7 Nf6 Kd6 c5 Kc7 Ng8 d8N Qf6 d6 Nh6 g8R Bd7 Ng7 Nc6 b8R Nd4 b7 Nc2 Qb6 Ra4 Rc8 Rb4 b8Q Bd2 Rd1 a1B Nde6 Bac3 Ra1 Ra4 Be7 Bb4 f8B Nf7 Ra3 Ng5 Kd8 Nf3 Bc6 Bh6 Qb5 Qf4 Q8b6 Qf6 Nd2 Qf4 Ne4 Ng5 Bd4 Qf6 Rb1 h1Q Bg1 h2 Rc1 Ra7 Ra4 Rb7 Rd1 c4 Rd4 Be8 d7 Qf4 Bc5 Rh8 Bf2 Qf1 Bg1 h1Q Nd6+ Q1f3 Rd5 Qhh3 Rd3 Kh1 Nf7 Qf1 Rd2 Qa1 Rg2 Rh7 Rh8 Qaa3 Rc7 Qf6+ Kc8 Q3f4 d8R Qa2 Rdd7 Qa1 Re7 Bd7+ Kd8 Qa3 Ra8 Qa6 Rcc8 Ne4 Nh5 Rg7 Ra7 Rg4 Nhg7 Ng5 Qc7 Qb6 Ra4 Qa6 Qca5 Rg3 Qc7 Re3 Qcb6 Re4
kbQb4/2nnRR1B/n2q2pR/2Br2pQ/1B4N1/1KB5/QBb1rq2/3N2Q1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 b4 g4 b3 g5 h6 axb3 hxg5 b4 Nh6 b5 Ng8 b4 Kd7 d4 e5 Kd2 c5 Kc3 Kc7 h4 Kb7 f4 a5 f6 c4 h5 a4 b6 e4 d6 a3 d7 e3 f5 a2 d5 e2 b5 e1N h6 Nf3 h7 Nc6 f7 Na7 f6 Qc7 d8Q Bh3 d6 Qe7 d7 Qe8 Bd3 Nh4 Bb2 Bf1 Nh3 Ne7 Qh5 Neg6 Nf2 Nf4 Ng4 Be7 f8R Nhg6 f7 Nc6 Bc2 Rg8 h8B Nge5 Bh7 g6 Rh3 Rb8 Qc8+ Ka8 d8Q Ne6 Qd1 Bd3 Qg1 Qd7 Re3 Nc7 b7+ Ka7 Bf6 Bc2 Bh8 Nb4 b6+ Ka6 Rh3 Qd6 Re8 Ra8 f8B Bd8 Re7 Nd7 Bhg7 Ra7 b8B+ Rb7 Rf7 Rh8 Be7 Re8 Bef8 Re4 Ba7 Re2 Qa8 Rb8 Qag2 Ra8 b7 Rc8 Bf2 Ra8 Re3 Ka7 Ree7+ Kb8 Bc5 Ra5 Bgd4 Nba6 Bb4 Rb5 Bfg7 Rd5 Bdc5 Nf8 Nd2 Nd7 Ne4 Ba4 Nef2 Bc2 Re1 a1Q Nd1 Qc1 Ref1 Qcf4 Rf3 Qf5 Rh3 Qf2 Qe4 Ba4 Qb1 Bc2 Qa2 Qfh2 Bc1 Qf2 Kb2 c3+ Ka3 Ba4 Bb2 c2 Bgc3 c1B Rh1 Bf4 Rh2 Bc2 Rh1 Ne6 Rh2 Kc7 b8Q+ Kc6 Qa8+ Kc7 Qc6+ Kb8 Qc7+ Ka8 Qc8+ Ndb8 Rh1 Nec7 Qb3 Qc6 Qa2 Ne6 Qhh2 Bfc7 Qe5 Qd6 Rh6 Bb6 Qe4 Nec7 Qeh1 Ba7 Qh5 Ne6 Qc7 Nd7 Qc8+ Bb8 Ne5 Bb1 Kb3 Nc7 Ng4 Bc2+
1B1r1Q2/qq1B2n1/1BQR1pn1/2b4b/r4R1N/R2K3p/NkN2R2/NN2br2 w - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 g5 b4 Nh6 bxa5 Ng8 h4 gxh4 a4 Kd7 e4 h5 Ke2 b5 d4 c5 g4 b4 e6+ Kd6 a6 c4 a7 f6 g5 h3 e5+ Kc7 a5 h4 e7 c3 e8N+ Kb7 d6 Ka6 e6 Kb5 e7 Kc4 a6 c2 d7 Kb3 g6 h2 d5 h3 g7 Bb7 d6 Bd5 Ra4 Nc6 Nc7 Rb8 a8N Be4 e8Q Bf5 a7 Bh7 Nb6 Ra8 Bf4 Nge7 g8R Nb8 Nf3 Qc8 d8N Na6 d7 Be4 Nh4 Bf5 Ncd5 Qb8 Nc6 Qd8 Rg2 Rh6 Nd4+ Kb2 Ne3 c1B Ndc2 b3 Nbd5 Rc8 a8R Ng6 Rf2 Bc5 Bb8 Bd2 Raf4 Bg4+ Kd3 Qe7 d8B Qa7 Bb6 Rd8 Qf8 Nc7 Na1 Ne6 Qf3 Bh5 Nec2 Ng7 Bg2 Bc3 Rd1 h1R Qe4 Rf1 Bh1 Qb7 Ra3 Be1 Bf3 Qf7 Bg4 Qa7 Bd7 Rh8 Ndb4 Rg8 Qd6 Rge8 Qec6 Re4 Qf8 Rc4 Na6 Ra4 Rdd2 Kc1 Nab4 b2 Nc3 b1Q Nba2+ Kb2 Rd1 Qb7 Rdd2 Qd1 Nb1 Qg4 Rde2 Qa7 Re6 Qg2 Rd6 Qh1 Qc8 Qha8 Qc6 Q8b7
2kB2bB/Q2nRq1B/nR3p2/b2K1b2/1NNnR1Q1/3B1pNq/5Nr1/4r1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 d4 h5 g4 h4 b4 a4 g6 h3 d6 h2 b6 a3 g5 c4 b5 a2 d5 c3 g7 c2 b7 Rh5 b6 Qc7 g6 Qc6 Be3 c1Q Nd2 Rh3 Nc4 Qa4 Rb1 Nc6 b8N+ Kd8 d7 a1N b7 Ra7 Na6 Nb4 b8Q Nc6 Nb4 Ra5 Qa7 Rh7 Nh3 Be7 Nf2 Nh6 g8B Ne5 g7 Qaa3 Rg1 Qb3 Rg4 h1B+ Kd4 Rh8 Bh7 Re8 g8N Ra2 Nf6 Qca3 N6e4 Bd6 Ng3 Bc7 Kc5 Nc2 Bd4 Re6 e4 Nf5 Bd3 Ng7 Rh4 Re7 Qg4 Ba5 Kd6 Ne6 Bc5 Ng6 e5 Ngf8 Bd4 Be4 Ba1 Bf5 Rb2 Nc5 e6 Na6 Rb1 Re8 Bh8 Nd4 Ke5 Bb7 e7+ Kc7 d8B+ Kc8 d6 Bd5 Bb6 Nde6 Nh3 Rd2 Bg1 Rg2 Nf2 Qba2 Rh6 Q3b3 Re1 f3 Re4 Qd2 Rf6 Qh6 Rg6 Qh3 Rf6 Rd8 e8R Qa2 Re7 Re8 Nd2 Bc4 Rg6 Bb3 Nc4 Nd7+ Kd5 f6 Rgg7 Ndb8 Rb7 Nd7 Rb6 Nd8 Rf4 Re1 Re4 Ne6 Re7 Qd2 Bh2 Qdh6 Bg1 Qf8 Bc2 Qg7 Bd3 Qf7 Bh2 Ng7+ Kc6 Ndc5 Bg1 Qf8 Ne3 Bg8 Nc4 Nge6 Kd5 Qf7 Re5 Nb8 Re4 Nca6 d7+ Kd8 Qa8 Kc7 d8B+ Kc8 Qa7 Nd7 Rb5 Qh2 Rb7 Qh3 Rb6 Nd4+
Q1b4n/1Q1NR1n1/3q1p1b/p4R1q/rBKRBrk1/N3b3/6NB/R3RB1q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 d4 g5 Kd2 a5 Kd3 c5 e4 f3 b4 f2 h6 f6 h5 g4 e5 g3 e6+ Ke7 b6 g2 h7 Ra7 b7 Ra6 b5 Qe8 h6 Bg7 b6 Qh5 d6+ Kd8 e7+ Kd7 e8B+ Ke6 d5+ Kf5 d7 Qh3+ Qf3+ Ke5 d8R Qh2 d6 Ra8 d7 Ra7 Bd2 Na6 b8N Rb7 Ne2 g1Q Nf4 Kf5 Na3 Qh5 Kc4 Qg3 Bb4 Ne7 Ng2+ Kg5 Re1 Nc7 Bg6 Ne6 Re8 Qd6 Be4 Ng6 d8R Re7 Qb3 Kg4 b7 Bf8 Qb1 Ng7 Nd7 Re5 b8B Rf5 Re5 Rf4 Rf5 Rg8 Re8 Nh8 Qb3 Nf7 Re7 Nh8 Bd3 f1Q Ra1 Qb1 Re1 Qd1 Bf1 Qb1 Bd2 Qd1 Qb7 Qh1 Bb4 Qf3 Kb5 c4 Bc7 c3 Kc4 c2 Bb8 Ng6 h8Q c1B h7 Be3 Bc7 Nh5 Bb8 Bh6 Bc7 Rd8 Qe8 Qfh3 h8R Ng7 Qg8 Qh5 Qgd5 Ne6 Qa8 Rg8 Qdb7 Rg7 Rd8 Nh8 Bb6 Rg5 Bd4 Ng7 Be5 Rf2 Bh2 Ra2 Rd5 Rf5 Rd4 Rff2 Rde8 Rf3 Re5 Rf4 Rf5 Bc1 Re7 Be3 Nc2 Ra4 Na3 Qg5 Nc2 Qh4 Na3 Qh5
bQ3RQ1/1R1rBq2/1RBp1N2/2K1QqNp/4Q3/R3nR2/bn1r4/n3kNb1 w - - 0 1 illegal: No possible last move, all moves rejected
3RN1n1/1N1r4/B1pB2qk/2bb1Q1B/1K3b1Q/Q2RR2B/2Qrp1nr/2Q3q1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kf7 Kd2 Kg6 Kc3 a5 b4 e5 g4 h5 f4 h4 d6 a4 f5+ Kg7 f6+ Kg6 b6 a3 d7 a2 d5 e3 d6 h3 b5 c6 b7 e2 f7 e1R b6 e4 Qc2 h2 Bf4 Na6 b8Q Kg7 b7 e3 g6 e2 g5 Ra7 Nf3 Ne7 Na3 Qe8 d8Q Nc7 d7 Ra6 Nh4 Ra4 Nc4 Rc1 Qa7 Ne6 b8Q Ba6 Na5 Nc8 Nb7 Rb4 Bd6 Rb6 Bh3 Rbb1 Rd1 h1Q Rd3 Be7 Nf5+ Kf8 Ng7 Bc4 Qa3 Bb3 Kb4 Qg1 Qba7 Rh6 Qe3 Re1 Qec1 Rb2 Rb1 a1B Re3 Ra2 Rb2 Bc4 Rbb3 Bd5 Rbd3 Qg2 Qc7 Qf1 d8R Nf4 Qd7 Qh1 Qg4 Ng2 Qh4 Qg1 Rd7 Qd8 Ne8 Qc7 Rd8 Rd1 Nf6+ Kg7 Ne8+ Kh8 g7+ Kh7 f8Q Be5 Qff2 Bf4 g8B+ Kg6 Bge6 Bf8 Qf3 Qh7 Beg4 Ne7 Qff2 Qg8 Bh5+ Kh7 Qf3 Qg6 Qe4 Ng8 Qf5 Kh8 Q2b1 Rad2 Qbc2 Qf6 g6 Rh7 Nc7 Kg7 Ne8+ Kh6 g7 Qe6 Qcc3 Qg6 Q3c2 Nf6 g8B Rh8 Be6 Ng8 Bc8 Rh7 Nc5 Rd7 Ba6 Rf1 Nb7 Rf2 Ka5 Be7 Be5 Bc5 Bd6 Ne1 Ka4 Rh2 Ka5 Ng2 Ka4 Ba7 Kb4 Bc5+
2N1NRb1/1b3B1p/KRB1r3/5k1N/1BQBq1n1/N3p2n/1q1R2Q1/r1b3qB w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Kc4 e5 b4 a4 f4 e4 g4 e3 g6+ Kf6 b6 d5+ Kb5 d3 c4 d4 c5 d2 c6 d3 g7 a3 g5+ Ke7 b7 a2 f6+ Ke6 g6 Na6 b8Q Bb7 c7 Bg2 c8N Qe7 f5+ Kd7 f7 Nf6 g8B Bb7 g7 Nd5 f6 Ke6 Bb2 Kf5 Qg3 Nb8 Qc2 d1B Na3 Qd8 Bg2 Qd6 Ne2 Be7 f8B Na6 f7 Bd8 Rh6 Bf6 Qc4 d2 Bd4 Qf4 Bh1 Nc5 Qg2 Qg4 Nf4 Ne6 Nh5 Bb3 Rd1 a1Q Bfc5 Ra7 f8R Nef4 Bf7 Nh3 g8B Ba8 Bd6 Re7 Ka6 Qb2 b5 Re6 b6 Qe4 b7 Be7 b8N Nf6 Nd7 Ng4 Ndf6 Ba2 Rb1 d1Q Ne8 Qg1 Rd1 Bf6 Rd2 Bb3 Bb6 Bd4 Bb4 Bc3 Rd3 Bd2 Rg6 Bc1 Rd2 Re7 Bd4 Ba2 Rb6 Re6 Nef6 Bb3 Be8 Ba2 Bgf7 Rg8 Bc6 Rg7 Bg8 Ra7+ Kb5 Ra4 Bf7 Bb3 Ne8 Ra7 Nb1 Ra1 Na3 Qe1 Qc2 Rg6 Ka6 Qg1 Bc4+ Rf6 Be2 Bd5 Bc4 Bg8 Bf7 Re6 Qc4 Bb7+
1Qqb1r1k/B3nQp1/1R2b1R1/K4NN1/4B3/1n2p3/1NN1RQq1/r1nRrN2 w - - 0 1 illegal: No possible last move
1n6/3NBpQn/B3Rr2/kbRB1N2/4R1K1/1p3N1q/brQ2r1q/1Rb3RN w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 a4 b5 h4 c5 e4 Kc7 d4 Kb6 a5+ Ka6 e6 b3 e5 b2 e7 g4 e8R c4 d6 b4 d5 b3 d7 Rh6 e6 Qb6 d8N Qd4 e7 Qg7 d6 Ra7 d7 Rh8 h6 Bb7 h5 Nc6 h7 Qh6 Bg5 Ba8 Nc3 b1B Ne4 Bc2 Nf3 Rc7 Nb7 Rc8 d8R Rb8 Rd4 Qg7 h6 Qg6 Rb1 Qh5 Nbd6 Nf6 Rg1 Rb6 Nf5 Nb8 Nf2 Bc6 Nh1 Bb5 Re4 c3 Qd3 Rg8 h8Q Nh7 Qg7 Rf6 Rc8 Rh8 e8R Ba3 Rc5 Bc1 R8e5 Rc8 Re6+ Rc6 Qd2 Qh3+ Kf4 g3 Bh4 Ng5 h7 g2 h8N Nh7 Ng6 Bcd3 Nf8 c2 Be2 Rb6 Nd7 Rc6 Rf1 g1Q Re1 Qf2 Rg1 Qfh2+ Bg3 Kb7 a6+ Kc7 a7 Kb7 a8B+ Ka6 Rc3 Ka5 Bf1 Rc4 Bd5 Ra4 Be2 Ra2 Bf1 Rb2 Be2 Q3g2 Kg4 Qf1 Bh4 Qfg2+ Kh5 Qgh3 Qd1 Bd2 Rcc6 c1R Qc2 Rf1 Rc5 Rf2 Bf1 Bf4 Be2 Qf1 Kg4 Bc1 Rf4 Be4 Bec4 Bd3 Rfe4 Qfh3+ Kh5 Re2 Qd1 Rf2 Qe2 Rg6 Ra1+ Kb4 Qd1 Bb1 Qc2 Ba2 Rb1 Bc6 Bb5+ Ka5 Ba6+ Bb5 Ba8 Qf1 Bd5 Rh6+ Kg4 Rg6+ Bg5 Rh6 Be7 Rg6+ Ng5 Rf6 Nf3 Qfh3#
b2bRB2/rqkp3N/Qq3B2/nR1B1QQ1/1N3RB1/4R1Br/q4p1b/K6n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 g5 h4 a5 b4 f5 c4 g4 Kc2 f4 Kb2 g3 e4 a4 b6 g2 b5 f3 b7 f2 e6 d3 h6 d2 e5 Na6 b8B Qa5 h7 Kd8 e7+ Ke8 c5 Nc7 c6 Ba6 b6 Nd5 c7 Ndf6 c8Q+ Kf7 e8B+ Ke7 e6 Qf5 h5 Qg5 b7 Bc4 h6 Ba6 Bc4 Nh5 Qf3 d1Q Bd5 Qe5+ Nc3 Qf4 Rh3 Qf6 Bg3 Nf4 b8R Kd6 e7 Qf1 Bh5 Qd1 e8R Bb7 Bg4 a3+ Kb1 Qe2 Na2 Ra7 Nb4 Ba8 Qa6+ Kc7 Rb5 Ne7 Rh4 Qe3 Nh3 g1B Ng5 Qeb6 Qd3 Nc6 Qf5 Qd6 Bb2 Qe7 Bf6 a2+ Kb2 Na5 Re1 Qe2+ Ka1 Qf3 R1e3 Bh2 Bg7 Be7 Bf8 Rg8 h8B Bd8 Bf6 Rh8 h7 Qe4 Bf7 Qec6 Bd5 Qcb7 R3e5 Nh5 Re4+ Qd6 Rf4 Qdb6 Rh3 Rg8 h8Q Rg7 Ree4 Rh7 Qg7 Rh8 Re8 Rh6 Bh4 Ng3 Nh7 Nh1 Rhe3 Rh5 Bg3 Rh6 Kb2 Rh3 Qgg5 a1Q+ Kc2 Qc3+ Kb1 Qc2+ Ka1 Qa2+
B1nk1q2/N2p4/1pQNR1K1/b2R4/Br2NBr1/2R1N2R/N1qq1r2/n2b2Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 e5 Kd3 g5 Ke4 b3 a4 b6 h4 g4 c4 g3 f4 g2 a5 b2 a6 Ke7 h6 Rh7 f6+ Ke8 Kf5 e4 c6 e3 a7 e2 h5 e1Q c7 Bd6 f7+ Ke7 f8R Bb4 c5 Qe3 c6 Qe8 Ra5 Qa3 Rd5 Bc3 Rf6 Qc5 Bb5 Qd4 Re6+ Kf8 Rh3 Rg7 h7 Rg4 h8R Qe3 h6 Rg7 h7 Qd4 Na3 b1Q+ Nc2 Ba1 Rc3 Qb2 Ne2 g1R Ba4 Bb7 c8N Qd2 c7 Re7 Ne3 Rh1 Qg1 Na6 Nd6 Nb4 c8N Qbc2+ Ne4 Rf7+ Kg6 Rh4 f5 Qe7 f6 Ke8 Bb5 Kd8 Ba4 Rf8 f7 Qd6 Bb2 Ba6 Nc1 Be2 Na2 Bd1 Bc1 Ne7+ Kg7 Re8 f8Q Qc5 Qff1 Rf8 Qb5 Bb2 Qc6 Ba3 Ncd6 Nc8 Nb5 Qd6 Kg6 Qe7 Rg8 Bb2 Rg7 Rf2 h8N Qf8 Rf7 Ba1 Rf3 Bb2 Rh3 Ba1 Ra3 Bc3 Rb3 Qb2 Ra3 Nc2 Rb3 Ba5 Rc3 Qe1 Bd2 Na1 Bc1 Qc2 Bd2 Rb8 a8B Rb7 Na7 Rc7 Nf5 Qe2 Bf4 Qed3 Ne3 Qdd2 Qb5 Rc4 Qc5 Rb4 Qc6 Qe7 Nf7+ Ke8 Rf6 Qf8 Nd6+ Kd8 Re6 Rg4+
4Q2R/K2p2pB/5N2/1k1bn3/r1Nrnqn1/3NR3/1NQb1BQb/1Q2QRq1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 a5 Kc4 a4 h4 e4 b4 e3 f4 e2 b6 e1N Kb5 d3 c4 d2 f6 a3 f5 a2 h6 Ng2 h5 Nh4 b7 Bd6 h7 Nf3 f7+ Ke7 f8N Be5 h6 Kd6 f6 Nh4 c5+ Kc7 c6 Qe8 f7 Kd6 Kb6 Qe7 c7 Qe6 b5 Ra5 Nf3 Nf5 Nc3 Qe7 Na4 Na6 b8N Bf6 Nc6 Nc5 Nfe5 Ne4 Qe1 d1Q Rh3 Nd4 Nd3 Nd2 Re3 N2b3 Nab2 Kd5 Nce5 Bh4 Nec4 Bb7 c8Q Qb4 Qc7 Ba6 Ka7 Nd2 b6 Ra4 b7 Bg3 b8Q Bh2 Bh3 Ne4 Bf5 Ngf6 Bd2 Rg8 h8R Ng4 Nh7 Nf3 f8Q Nfe5 Qfe8 Rf8 Nf6+ Kd4 Rc1 a1B h7 Qd6 Qb3 Bb7+ Ba5 Bd5 Qc6 Ng6 Qc2 Qf4 Qb5 N6e5 Qg6 Ngf2 Qg2 Nfg4 Qbb3 Rb8 Qa2 Rb3 Qab1 Rb6 Re8 Rbb4 h8Q Nc3 Bh7 Ne4 Qeh1 Qg1 Rf1 Bb7 Ra8 Bc6 Qe8 Bd5 Ne1 Kc5 Ned3+ Kb5 Rd8 Bg3 Qh4 Bh2 Qhe1 Be6 Nb6 Rd4 N6c4 Rb4 Bb6 Bd5 Na4 Bc3 Nab2 Ba8 Qe7 Bb7 Rh8 Bd5 Qe8 Ra4+ Ba5 Nc5 Qee2 Bd2 Qed1 Bc1 Qde2 Na6 Be1 Bd2 Bf2 Nc5+ Kb8 Be6 Qee1 Ne4 Kb7 Bd5+ Kb8 Rb4 Ka7 Ra4+
R1br2BK/1Qb1n2R/2B1N1n1/8/5B1Q/ppr1R2b/1RbN4/QB1k1bBq w - - 0 1 illegal: No proof kernel
B5Rn/b1N4B/RQ2N2n/bb1pqpN1/bBQR2R1/2r3KB/1br5/2B4k w - - 0 1 illegal: No possible last move
5n2/Q1BNqpn1/r1b3Nk/QrNr1r2/1B2pb2/3N3N/3RBQ2/2rQ1K1R w - - 0 1 illegal: No proof kernel
1r3Q1R/KN1Q4/4bbr1/2R2n1n/2R3q1/1BNB2pr/r3B1pB/k2NNbB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 g5 Kc5 f5 d4 f4 e4 g3 h4 a4 b4 f3 e6 Kf6+ e7 a3 d6 f2 e8B g4 b6 g2 b5 a2 d5 Ke5 b7 c6 b6 Qd7 h5 Rh6 Be3 Ra6 Bf7 Rh8 h6 Rh7 Rh5+ Qf5 Be2 f1B Nc3 Rg7 h7 Ra7 h8R Rh7 Nh3 Bg7 d7 Bh6 d8N Qg5 d6 Ra4 d7 Ra3 Ne6 Ne7 d8N Ra7 Nf2 Ra8 Rc1 a1R Nf4 Bg7 Qd7 Nf5 Bb3 Bf6 Nfd1 R1a2 Bg1 Qg8 Nh3 Rh6 Ng5 Rg6 Nf3+ Kf4 e5 g3 e6 Qg7 Ne1 Ke5 e7 Qg8 Qd2 Be6 e8B Qg7 Bh2 Nd7+ Kb4 c5+ Kb5 c4 Kc6 Nc5 Qd7 Nd3 Kc7 Qg8 b8B Nf4 Ba7 Rb8 b7 Qg7 Rh4 Nh5 Bag1 Qg8 Kb6 Qg7 Nd5 c3 Rc4 c2 N5c3 Qg8 Qa4 Qg7 Bb5 Qd7 Ka7 Qc8 Ra1 c1R Ba6 Rb1 Qd7 Rc1 Ne3 Rd1 Rc1 Rd4 Rc2 Rh4 Ned1 Rh3 Qc7+ Nd6 Ra4 Bg5 Bad3 Bd7 Nb5 Ra8+ Kb6 Be7 b8Q Bf6 Qcb7 Qc4 Qc6 Qg4 Nb7 Be6 Qf8 Nf5 Qd7 Rc8 Rc6 Rb8 Ka7 Bd8 Bdc4 Bf6 Rc5+ Ke4 Nf2+ Ke3 Bcd3 Kd2 Nc3 Kc1 Nfd1 Rg8 Nf2 Kb2 Nfd1+ Ka1 Kb6 Rg6 Rac4 Rb2 Ka7 Ra2+
b2n1q2/QQ2QNb1/1N3RR1/1Q1BQN2/N1b4B/2K3p1/1rR2pn1/1br1r1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 Ke6 e4 a5 h4 g5 c4 d5 h6 f5 b6 d3 h5 d4 b5 g4 c5 a4 c6 g3 b7 f4 b6 f3 c7 a3 h7 f2 h6 a2 Ne2 Ra7 Nbc3 Qe7 Na4 Qf7 Qb3+ Kd7 e6+ Kc6 e7 Be6 c8N Bc4 e8R Qf6 e5 Kd5 e6 Ke4 e7 Kf3 Bg2+ Kg4 Qb5 Nc6 b8Q Rb7 Bd5 Nd8 Qa7 Bg7 Rf8 Qf3 e8Q Nf6 Qe3 Nh5 Qe7 Nf4 Rf6 Re8 h8Q Ng2 h7 Qf5 Rb1 a1R Rb2 Rb8 Rd1 Kh3 b7 Kh2 Ncb6 Qf3 Rg6 Qf8 Rc2 Rb1 Re1 Rb2 Rf6 Rc8 b8Q Rc6 Qbb7 Rc5 Nec3 Rc7 Re4 Kg1 Rg4 Rc8 Rgg6 Rc6 Kd1 d2 Ne4 Rc7 Nd6 Rc5 Qb3 Rc7 Qd3 Rc6 Ke2 d1B+ Kd2 Bf3 Nf5 Be4 Qe2 d3 Kc3 d2 Qd3 d1B Bg5 Rc5 Bh4 Bdf3 Qe2 Bed3 Q2e5 Bfe4 Qg8 Bf3 h8N Bde4 Nf7 Rc6 Rd2 Bb1 Rc2 Rc8 Qh7 Be4 Qb4 Re7 Qb5 Bf3 Qec7 Re1 Qe5 Rc7 Be6 Bc6 Bd5 Rc8 Qbe7 Ba8 Qeb7 Bh6 Nh8 Rc7 Qhe7 Rd7 Bf7 Rdd1 Bd5 Bg7 Nf7 Rc1
1bKB2Rn/N3R1QB/3N3Q/3b1rB1/1p1Nbrk1/1n4Bq/2p2B2/r1r3RN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 e5 Ke4 g5 d4 c5 a4 b5 f4 g4 h4 g3 f6 b3 Kf5 c4 f7 g2 h6 c3 h7 e4 d6 b4 h5 c2 a5 e3 h6 e2 d5 e1R a6 b2 a7 Re4 Qh5 Na6 Nd2 b1B Ne2 g1R Nf3 Re7 Nfd4 Re8 Ng3 Rb8 a8R Qh4 Bd3 Nc5 R1a7+ Kd8+ d7 Bg7 f8B Rb7 Bd6 Rg2 Rg1 Rh2 Nh1 Nf6 Qf7 Rhg8 h8Q Nb3 h7 Bf8 Qfg7 Be7 Ke6 Qh3+ f5 Nh5 Bg3 Ba2 Bg5 Ref8 Be4 Qf1 f6 Rb5 f7 Qh3+ Bf5 Rf2 Rc7 Re8 f8B Rf4 Qh6 Rc5 Q8g7 Bf6+ Kd6 Re1 h8N Rc1 Bh7 Ra5 Rb7 Rf5 Kc6 Nf4 Bc5 Ng6 Ba7 Ra4 Nf7+ Ke7 Kc7 Nh8 d8N Rf8 Nd6+ Rf7 Bb6 Ra3 Rba7 Bb7 Rc8 Ra6 Kb8 Kd7 N8c6 Be5 Rg8 Ra4 Ne6 Ra5 Bbf2 Rf4 Ned4 Ra3 Qgg6 R7f5 Qgg7+ Nf7 B3h4 Nd2 Nb3 Rf6 Nbd4 Bb3 Bhg3 Raa1 Ra3 Bc4 Re3 Nb3 Na7 Bc6 Qgg6 Nh8 Qgg7+ Rf7 Re2 Bf6 Nb7 Be5+ d6 Bd3 Ree1 Bd5 Nf3 Bg6 Re4 Ke6 Kc8 Kf5 d7 Kg4 d8B Rf6 Nd4 Bb8 Re7 Bge4 Nd6 R6f5
3k4/N1Rn1b1b/B4b1b/2R1pqrQ/QQ2K3/1R1Rn1Np/r4N2/QQn3B1 w - - 0 1 illegal: No possible last move, all moves rejected
B1Q1R2R/1b1r4/rb2K1Nq/3p1Q2/1R4n1/bn3b1Q/kBRB2p1/3NnB1B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 g5 e4+ d3 b4 a5 e6 g4 e7 g3 e8R f6 h6 a4 e5 a3 h5 a2 h7 d6+ e6 Ba6 b6 Qc7 b7 Qf7 b5 Bh6 b6 Ra7 e7 Kb4 c4 d2 c5 Qb3 c6 Qc2+ Ke6 Kb3 c7 f5 c8B f4 Nh3 f3 Nf4 f2 Nc3 Bf8 h6 Nd7 b8Q Bb7 Qf3 d1B Bd2 Ne5 Ng6 Qc1 Qf5 Bdf3 Nd1 Nf6 Rh5 Qc6 Rc1 a1B Rc2 Nd3 Rh2 Rg8 h8Q Ne1 h7 Ra6 Rh4 Bb2 Rb4+ Ka2 Bd7 Bh6 Qc8 Ng4 Qc3 Bg5 h8B Be3 Be5 Rg7 Bd4 Ba8 b7 Qb6 b8R d5+ Bc6 Bb7 Rh8 Rh7 e8B Rd7 Bg2 f1N Bh1 g2 Ra8 Be2 Bg7 Bg1 Qh3 Qe3+ Be5 Qh6 Bf6 Bb6 Bb5 Rf7 Bec6 Bf3 Bg7 Rd7 Bgc3 Ng3 Bf1 Ne2 Re8 Nc1 Rb8 Ra4 Be5 Nb3 Rh8 Ba6 Ba8 Bb7 Bg7 Kb1 Bf6 Ba3 Bb2 Ra7 Qg8 Ra4 Re8 Ka2 Qgf8 Ra5 Qc5 Ra4 Qc8 Ra6
2Q3RN/1B1B2q1/1k1r2p1/2b1bN1B/2K5/pB1Q1b2/r1R1nBrN/QQ2rn2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 a5 Kd3 f5 b4 d5 h4 Kd7 c4 Kc7 e4 d4 c6 g3 c5 f4 h5 a4 e6 a3 h6 g2 e7 f3 e8B f2 h7 Be7 e5 Bf6 e6 Ra4 e7 Na6 b6+ Kb8 c7+ Kb7 c6+ Ka8 b7+ Ka7 b5 Nb4+ Kc4 d3 b6+ Ka6 b8Q d2 b7 Bd4 Nf3 g1B Nh4 Ra5 Bd7 Ra4 e8B Ne7 Ra2 Ka5 Rc2 Be5 Bh5 g6 Nf5 Ned5 Bb2 Qh4+ Bd4 Qe7 Be3 Rf8 h8N Qg7 Bd3 f1R Bf2 Rf7 Qe1 d1R Nd2 Rf8 Nf3 Nf4 Nh2 Ne2 Be4 Rd3 Qa1 Re1 Bd5 Rf6 Bg8 Rfd6 Bf7 Re3 Qa8+ Kb6 b8Q+ Bb7 c8Q Ra5 c7 Nd5 Bfe6 Rb5 Qa4 Rb2 Qb3+ Ka6 Bg8 Rg3 Qd3 Ra2 Bf7 Ka5 Bfe6 Ba8 Qbb1 Rg2 Bf7 Ndc3 Bd5 Ng3 Bb7 Nf1 Ba4 Rg5 Bb3 Rg3 Qb8 Rg2 c8B Ne2 Bd7 Bd4 Qc8 Kb6 Ng4 Bc5 Rh3 Bd4 Nh2 Bc5 Re3 Bd4 Re8 Bc5 Bh4 Bgd4 Rg8 Bc3 Bf2 Be5 Ba6 Bc6 Bb7 Bf3
1Q3b1Q/nr4pR/b3N2p/1n1KR2Q/3NQB1R/2n1R2q/5knN/1rR2B1r w - - 0 1 illegal: No proof kernel
1r2r2n/3Q4/1Q1bN1b1/2Qqr1Rp/K3N1p1/1n1NBr1B/5N1k/B1qB1RN1 w - - 0 1 illegal: No proof kernel
4k3/nN6/Rb3b1N/Q1R2prr/RQ2qRQ1/1Q1npR2/bK4Bq/B4B1b w - - 0 1 illegal: No proof kernel
r1B1n3/Bn5Q/KB3R1p/R2NN1q1/qQrb2qp/1Q3N2/2Bqb1kN/4B3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 b4 e5 g4 a5 f4 c5 g5 a4 f6 h6 g6 a3 g7 a2 b6 Ra7 Kb5 c4 d6 c3 f5 c2 d5 Rd7 b7 Nc6 b8B Rh7 f7 Na5 f6 Rc7 d7 Nb7 d6 Na5 Nf3 Bb7 Nbd2+ Ke3 Bh3 Kf2 Ba7+ Kg3 Nh2 e4 Ndf3 e3 Qd3 e2 Bd2 e1Q Rf1 Qee7 Be1+ Kf4 Bg4 Be4 Ka6 c1Q b5 Nb3 b6 Rh8 b7 Bh7 b8Q Nd2 Qbb3 Qde8 d8N Qc3 d7 Nc4 Nc6 Nd6 d8B Nb7 Bc8 Q8d7 Nce5 Rc4 Bdb6 Qd2 Qdb1 Be4 Q1c2 Bd5 Qh7 Qg4 Rf2 Qd8 Rf1 Bd6 f8N Bc5 f7 Nf6 g8B Bd4 Nfd7 Ne8 f8Q+ Bf7 Nf6 Bh5 Rf2 Kg3 Nd5 Q8g5 Qfb4 Kh3 Rf1 Kg2 Bf7 Rf8 Bg6 Rh8 Bc2 Rg8 Rb1 Rf8 Rb2 a1Q+ Ra2 Rg8 Ra5 Qa4 Qc7 Bg6 Qh7 Bd3 Ng1 Rf8 Rf6 Be2 Ngf3 Ned6 B8f5 Ra8 Bc8 Ne8
3bR2n/k5n1/1r1p1B2/r1q1R1N1/3rq2Q/Q2p1BQr/B1N2K1Q/2RbBB2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 f4 e5 g4 h5 b4 h4 b6 a4 g6 e4 b5 e3 f6 e2 c5 h3 g5 h2 c6 d3 c7 a3 f7+ Ke7 b7 Kd6 f5 Kc5 f6 Kb6 g7 a2 g6 Rh5 Bd2 Bd6 f8Q Qe8 f7 Bf4 Qa4 Nh6 g8R Bd6 g7 Nc6 b8Q+ Bb7 c8B Ba3 Qg3 Qd8 Qah4 Nf5 Nh3 Ne5 Kf2 e1R Ng5 Bf3 Bb7 Bd1 Bf3 Be7 Na3 Qc8 Nc2 Ra6 Rc1 Bd8 Qa3 a1R f8B Ng6 Be7 Re4 Be1 Ka7 Bf6 Rd4 Re8 Nh8 g8B Ng7 Ba2 Qc5 Rg1 h1Q Re5 Kb8 b6 d6 b7 Ra5 Qhh2 Ka7 b8Q+ Ka6 Qc7 Rh3 Qe7 Rb1 Rg2 Nf5 Qh7 Ng7 Qhh4 Rb6 Ke3 Qc4 Re2 Ka7 Kf2 Qc5 Re8 Nf5 R2e5 Ng7 B3e2 Qhd5 Bf3 Qe4
2qbkn1Q/2rR2Q1/N2p1Q2/b4BB1/pK2b3/BN2n1b1/1B1BN3/rqR3N1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Nf3 a5 Kd2 e5 h4 g5 c4 a4 b4 g4 c5 d3 Kc3 e4 h6 d2 c6 e3 h5 e2 c7 e1B f6 g3 b6 g2 h7 g1B h6 Bb7 c8Q Be4 f7+ Ke7 b7 Qe8 b5 Bf5 b6 Bh2 Qc6 Bd6 Bh3 Na6 b8B Bc2 b7 Ba3 Bf4 Qd8 b8N Nc5 Na6 Qc7 Bg5+ Nf6 Rf1 Bg7 f8B+ Kf7 Bd6 Rhd8 h8B Nd3 h7 Rab8 Ng1 Ne5 f4 Ng6 f5 Nh5+ f6 Be4 Bf5 Rdc8 Qb3+ Ke8 Qb7 d1Q+ Nd2 Bh4 Bdf4 Be7 Ba3 Qe1 Rd1 Ng3 Qa7 Rb2 Kc4 Rb1 Nb3 Ra1 f7+ Kd8 f8N Ke8 Qd4 Bd8 Ne6 Nf8 Qc3 Qb8 Ned4 Rc7 Nde2 Qc8 Kb4 Bd4 Rd2 Qb1 Rc1 Bf2 Bg7 Nf1 h8Q Bb6 Rd5 Bg3 Bd2 Bh1 Qch6 Bg2 Qcc6 Be4 Bgb2 Ne3 Q6g7 Rb7 Qcf6 Ra7 Rdc5 d6 Rc7 Rb7 Rf7 Rc7 Rd7 Ba5+
4B3/Rq3b1N/B2p1nrR/RN1N2p1/3nq2R/2b3BQ/1B1k2rB/2q2KQq w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 h4 Kf6 c4 Ke5 f4+ Ke4 f6 a5 c5 e5 b6 g5 c6 d3 f7 a4 h6 a3 f5 a2 h5 Ba6 b5 Rh7 b7 Kd4 c7 e4 c8B e3 b6 e2 f6 Bb5 Nh3 Qc7 Nc3 Bc6 Nf4 Bf3 Rh4 Na6 b8B Ra7 b7 Nb4 Bb2 Ke3 Nb5 Be7 f8N Qc4 f7 Rg7 h7 Rg6 h8R Qd5 h6 Bf6 Nh7 Bh5 f8R Nc6 Rf7 Nd4 Bg2 Qb3 Bc6 Bg7 Bd6 Nf6 b8B Ra3 Ba6 Qd5 Rc1 a1Q Rc5 Qc1 Bdc7 Qg2 Bd6 Ra2 Nd5+ Kf3 Bf4 Ke4 Bbe5 d6 Ra7 Qh1+ Kf2 d2 Be8 Kd3 Qg1 d1Q Bh2 Kd2 Beg3 Qa4 Nb4 Qb7 Nd5 e1Q+ Kg2 Qe4+ Kf2 Qc3 Kf1 Qcc2 Rc4 Qa5 Ra4 Qd8 Ra5 Qda8 Nf8 Qh1 h7 Qce4 Rg8 Qac8 h8Q Qc3 Qh6 Qcc7 Nh7 Qc3 Rh8 Qc1+ Kf2 Bg4 Qh5 Be6 Qg4 Bf7 Qh3 Ng8 Rh6 Be5 Rh4 Nf6 Rh6 Nf3 Rh4 Bc3 Rh6 Nd4 Rh4 Qcc2 Kf1 Qc1+ Be1+ Kd1 Ba3 Kc2 Nf8 Qbe7 R8h6 Kd1 Beg3 Qb7 Nh7 Rg2 Bb2 Kd2+
2BR1Bbr/q3K3/qRpbBR2/3N3r/2N1np1R/1RQB4/4Nknb/bQ6 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Kg3 g5 h4 f5 d4 a5 b4 c6 e4 a4 h5 a3 b6 a2 e6 Kf6 d6 Qe7 b7 Qd7 d5 Ke5 h6 Ra6 b5 Be7 b6 Ra8 h7 Qe8 d7 Ra4 d8R Bc5 e7 Be3 d6 Qd7 e8B Qe7 d7 Bd4 Bd3 Qg7 Ne2 Qf8 Rh4 Ra6 Na3 Ra5 Bf7 Ne7 Be6 Na6 b8R Ng6 b7 Nc5 Qg1 Nf4 Nc4+ Kf6 Qe1 Be5 Ba3 Bc7 Qb1 Ng2+ e5+ Kg6 Bb4 Qd6 Rf8 Qd4 d8R Ne4+ Kh2 g3+ Kh3 f4 Kg4 Qb6 Rf6+ Kg7 Kf5 g4 Bc5 Qa6 Ba3 Bd7 Bd6 Be8 Bc8 Bh5 Ke6 Bf7+ Ke7 Bg8 e6 Rb5 Qd1 Rc5 Rb1 a1B Rb6 Ra5 Qb1 Rh5 Rf5 Kg6 Rf6+ Kg5 Rb3 Ne1 Rb6 g2 Bc5 g1Q Bb4 Bf7 Bc5 Rg8 h8Q g3 Rb3 g2 Kd7 Qa3 e7 Rg6 e8B Nc3 Re6 Qa8 Nb6 Bg8 Bf8 Ne4 Bf7 Rgh6 Qc3 Qa6 Ke7 Rh8 Nd5 Qga7 Rf6 g1B Bfe6 Bh2 Ra8 Qg1 b8N Ng2 Nd7 Qe3 Ne5 Qea7 Nc4 Nd2 Rh3 Ne4 Rf5+ Kg4 Rh4+ Kf3 Rf6 Kf2 Rab8 Bh7 R8b4 Bg8 Rb6 Bd6+
3bR1R1/pq1b2KR/B1nb4/2nB4/1RN4B/B2b4/QR1qQrpk/2rNQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 g5 b4 f6 h4 f3 h6 g4 h5 f2 h7 g3 h6 g2 b6 c4 b7 c3 b5 c2 b6 Bh3 Nc3 Be7 Nf3 Qd7 Rb1 Nc6 b8R Qe6+ Ne5 Na5 b7 Qf7 Rb4 Bg4 Ba3 c1B Qe1 Bf3+ Kf5 Nb3 e4 Na1 Re8 Bf8 b8R Qg7 Nc4+ Kc7 e5 Nb3 e6 Bg5 e7 Nc5 d6+ Kd7 Rh3 Bc6 d5 Bh4 R8b5 Rc8 Nd1 Qf7 Bd3 f1B Rb2 Bg5 R5b4 Bb5 Be4 Bd3 Rh1 Qe6+ Kg6 f5+ Kh5 Qe5 Kg6 f4 Kf7 f3 Rh2 Nf6 Qe2 Rg8 h8R f2 h7 f1Q Qe1 Rg6 Rg8 Qc3 h8Q Qf3 Qh5 Qd2 Rh3 Bh4 Qe5 Bg5 Rh7 Bh4 Qe2 Rg3 Qc3 Ng4+ Kg6 Rc7 Qb3 Rh3 Qa2 Rh1 Qe1 Rf1 Qe2 Rf2 Qe1 Bh6 Qe2 Bf4 Kg7 Ne5 Qe1 Nf7 Qe2 Nd8 Qe1 Kc8 d7+ Kb8 Qe2 Bd6 Qe1 Kb7 Qe2 Nc6 d8Q Rc8 Qd7+ Kb8 Qe6 Kc7 Qe5 Kd7 Qc3 Bb8 d6 Ke6 d7 Bd6 Bd5+ Kf5 d8B Kg4 Qce5 Kh3 Qe1 Ba4 Q5e2 Bb5 Ref8 Kh2 e8B Qe4 Bef7 Qe7 Re8 Qb7 Bf6 Na5 Bd8 Bd7 Bfe6 Nc6 Bh3 Bhg3 Bh4 Bgf4 Bg4 Bg5 Bgf3 Bd8 Bfe4 Bb1 Bd3 Bc2 Na5 Rc7 Ba6 Bd3 Nc4 Ne4 Re6 Ne7 Nce3 Rc1 Nc4 Nc6 Ree8 Nc5
1N4k1/nR1Q2n1/1B4p1/2R3B1/2K2pBR/bq1rNQnp/1b3B2/Rb1Q1B1r w - - 0 1 illegal: No possible last move, all moves rejected
K1QB2Br/R3qR1p/1Qn3N1/3NN3/1pR2Rr1/2nr1p1k/1Qb1QR2/2n3b1 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 Ke3 c5 Ke4 b5 d4 f6 g4 c4 a4 c3 g6 c2 g5 b3 d6+ Ke6 a5 b2 a6 b4 d7 Bg7 d5+ Ke7 e6 Qf8 d8R Bb7 a7 Bc6 Qd4 Ba4 Nc3 b1N Rh4 Bd7 Nf3 Be8 Rc8 Bd7 Ra2 Bh6 g7 Kd6 e7 Bh3 e8R Bg4 g6 Kd7 d6 f5+ Kd5 f4 e4 Na3 e5 Qf5 Bc4 Bg5 Rf8 Nh6 g8N Na6 g7 Nc5 Ne7 Nb1 g8Q Ne4 Ng6 Rb8 a8R Ng3 R8a7+ Rb7 Qb6 Qf6 Qg7+ Nf7 Kc5 Rc7+ Kb5 Bh5 Ka6 Ne2 Bd5 Rb7 Rc4 Qe6 Qf6 Nd8 Bb2 Qe8 Bg8 c1R Qg7+ Be7 Rf7 Ke6 d7+ Nc6 d8Q Rg1 Qc8+ Rd7 Rg4 Nc1 Ba1 Bd6 Rf2 Bc7 Kb7 Rg3 Ka8 Rg2 Qd8 Rd3 Qc8+ Qd7 Nd5 Bd6 Re7+ Kf5 e6 Rg3 Bf6 Bc5 Rg2 Qe8 Rf7 Bg1 e7+ Qd7 e8Q Qe6 Qh6 Nc3 Rf2 Qd7 Rh4 Rg5 Qee3 Qe6 Nfe5 Bd1 Qd2 f3 Qb2 Bc2 Rhe4 Rg3 Qhe3 Rg2 Qe2 Rg3 Bg7+ Kg5 Bf8 Rg4 Ref4 Qd7 Bd6 Qe7 Bc7 Kh5 Bd8 Kg5 Nf8 Kh4 Nfg6+ Kh3
R1Q1N3/nq1Qpp1K/N1b5/3n1N1k/2B3pB/br1QR2B/2N2N2/Qn1r3r w - - 0 1 illegal: No proof kernel
1BN2Nb1/2qp1b1Q/R3Bp1b/2rRrnNB/2Q1K2k/1BQrB3/4p1n1/N7 w - - 0 1 illegal: No possible last move
1k2K2B/1pb1n2p/2r1Qr1R/1b1BBN1p/2N3nB/1Q1r3Q/B6n/Qq2NR2 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 h4 a3 h5 g6 bxa3 gxh5 a4 Nf6 a5 Ng8 Ke2 Kd7 Kd3 e5 Ke4 c5 d4 Kc7 a4 c4 f4 c3 g4 c2 g5 Bb4 g6 Qf8 d6+ Kd7 Kd5 e4 g7 e3 a6 e2 a5 e1R f6 Re3 f7 Ra3 f5 Rg3 f6 Rf3 a7 Qe7 f8N+ Kd8 f7 Rd3 d7 Kc7 a6 Ba3 Nd2 Qe8 Ngf3 Nc6 Ne1 Na5 Ng6 Nh6 f8B Nc4 d8B+ Kd7 g8B Rc3 Bg7 Rh3 Ne7 Rh2 Bg2 Ng4 Be5 Nd6 Bb2 c1N Nf5 Qf8 Nc4 Ne4 Bh4 Na2 Rf1 Rh1 Qb3 Rb8 a8Q Ng5 a7 Bd6 Bf3 Kc7 Be4 Nc1 Ra6 Ne2 Bb1 Rh3 Ba2 Bd7 Bc3 Ne4 Ba1 Bc6+ Ke6 N2c3 d5 Rd3 Rb6 Qh6+ Kf7 Qc1 Ra6 Re8 Rb6 Re6 Qe8 Qb1 a8Q Rh6 Qe6 Nef6 Qaa3 Bb5 Qaa4 Nd7 Ke8 Kb8 Qa6 Bc7 d6 Nh2 Bb2 Nf8+ d7 Nd5 Rc6 Ne7 d8Q+ Nc8 Qg5 Ne7 Qe3 Rf6 Qh3 Nfg6 Qaa3 Nd5 Bbd4 Ne3 Qab2 Neg4 Qa1 Nf8 Bf7 Rg8 Bc3 Rgg6 Bg8 Rf7 Bh8 Rff6 Be5 Rh6 Qd7 Ng6 Bd5 Ne7 Re6 Rf7 Rb6 Rc6 Ra6 Rc5 Rh6 Rc6 Qe6 Rf6
N1n1kB1q/pn1r2Rb/1QBpr1R1/n7/5Q1K/QB2br1N/3B2p1/2NQ3B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kg3 g5 e4 d3 b4 g4 c4 d2 h4 Qe7 h6 Qh7 e6 Qg6 e7 Qh5 b6 Nf6 b7 Ng8 b5 Qg6 e5 Qg5 c5 Kf7 e8B+ Ke7 c6 Qf6 h7 Qd6 h5 f4+ Kh4 g3 h6 f3 e6 f2 c7 Qa3 b6 Qc5 Nh3 Qd5 Bc4 f1R Ra6 Rg1 Nc3 Rg2 Na2 Rh2 Bb3 Qf5 Rg1 Nc6 b8Q Qc2 b7 Qc3 Bh5 Qa1 Bf3 Na5 Bh1 Ke8 e7 Re2 Rg6 Re6 Ba3 Bg7 Nc1 Bd4 Bb4 Be3 Bc3 Kf7 e8B+ Kf8 Rg2 Ne7 Bb4 Rg8 h8B Rg7 h7 d6 Bc6 Rf7 Bf6 Rg7 h8Q+ Kf7 Qd8 Bd7 Bg5 Nc8 Qf6+ Ke8 Bh6 Rf7 Qe5 Rf3 Bf8 Qc3 Qf4 Qe5 Qc2 d1N Bd2 Nf2 Qd1 Ne4 Rg1 Ng5 Rg7 Nf7 Rg6 Nd8 Rg2 Ne7 c8N Qb2 Nb6 Nc8 Qc7 Qd4 b8Q Ndb7 Be4 Bb5 Qc5 Bd3 Qa3 Bb1 Rg7 Qa1 Bed5 Bh7 Qc7 Rb8 Na8 Qe5 Rg6 Qc3 Qb6 Qh8 Re2 g2 Re1 Bg1 Re5 Be3 Reg5 Nc5 Be4 Rb7 Bc6+ Rd7 Rg4 Ncb7 Rg7 Bc5 R4g6 Be3
4r1k1/NN1Rnq2/1n2K3/RQ2prB1/3QbbB1/p3Q3/1N1pB3/q1NN1Qr1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 b4 a5 f4 e5 h4 g5 c4 a4 h6 g4 h7 g3 b6 g2 b7 Bd6 f6 Kf8 f5 Ra7 b5 Be6 c5 Bc8 c6 Bc5 b6 Qd6 f7 Qg6 h5 Na6 b8Q Kg7 f8N Nh6 b7 Nc7 Ne2 g1R Ne6+ Kf7 N6f4 Bd6 Nbc3 Re8 h8N+ Kg7 Nf7 Rg2 Nd8 Nb5 c7 Be6 c8B Nf7 h6+ Kg8 h7+ Kf8 h8Q+ Qg8 f6 Na3 Qh3 Rg6 Qe3 Nh8 f7 Nc4 Rh7 Be7 Rg7 Bh3 Bg4 Nb6 Qdd2 Rg5 Nd1 Bg2 Qb4 Bf3 Bd2 Ng6 Nc1 Ra8 Be2 Rf5 Qb5 Ba3 Qa7 Ne7 b8N Bb4 Nbc6 a3 Nb7 Rad8 Rb1 Rd6 Qaa4 Rg6 Na7 Bc3 Qac4 Bg2 Rb4 Qh7 Ra4 Bb2 Kc2 d3+ Kb3 d4 Ra5 Be4 Kb4 Rgg5 Kc5 Qh5 Kd6 Bc3 Be1 d2 Bh4 d3 Qcd4 Qh7 Ke6 Qg8 Nb2 d1Q Nh3 Bd2 Nf2 Qh1 Nfd1 Qg1 Qh3 Bf4 Qhe3 d2 Rh7 Rh5 Bg5 Rh1 Rh6 Kg7 Rg6+ Kh8 Rg7 Qh7 f8Q+ Qg8+ Rf7 Qe1 Qf3 Rg1 Qh6+ Qh7 Qf1 Kg8 Qhh3 Qg3 Qh6 Qd3 Qhh3 Qb1 Qhe3 Qa1 Kd6 Nc6 Rd7 Ne7 Ke6 Qf7+
3nk1qr/1Q2NpQB/NB2p3/6BB/R1Kb1N2/2bQ4/qrR3Bp/n4bN1 w - - 0 1 illegal: No proof kernel
1nBqb3/npB5/R2b2k1/Qp2BN1N/1N1R2r1/p2bq3/4QB2/KN1Q1r1N w - - 0 1 illegal: No proof kernel
b1B3QQ/2n1bBKq/1Nk3p1/rN2RQR1/1n2pr1Q/2n1B2B/Q3n1pN/8 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 d5 Kd3 Kd7 Kd4 a5 Ke5 e6 h4 d4 c4 g3 f4 g6 b4 a4 f6 d3 f5 a3 c6+ Kc7 f7 g2 c5 a2 h5 d2 h6 Qe7 f6 Qd8 h7 Ra3 Qc2 d1N Rh5 Bh6 f8N Bg7 Rg5 Ra8 Nf3 Nb2 Be3 Ra6 Bc4 Ra3 Nh2 Ne7 Nc3 Ra5 Re1 a1N Nd7 Bf8 f7 Qe8 Kf6 e5 b6+ Kd8 b7 Kc7 b5 Ra2 b6+ Kd8 Nb5 Na6 b8Q Nb3 b7 Nd4 Nb6 Ra5 Qb1 Rg8 h8Q Na4 Qh4 Ne2 Qa2 Nb4 Qa8 Qd7 b8Q Qg4 Be6 Qh5 Bd5 Bh6 Bb3 Re8 f8Q Nac3 Qh8 Rg8 Bf7 Bf8 Qc2 Rg7 Qf5 Rh7 Ba2 Ke8 c7 Rg7 c6 e4 Rd1 Rg8 Rd5 Rg7 Re5 Rh7 Qa6 Rh6 Qba7 Bb7 c8B Ba8 Qb8 Kd8 Kf7 Ned5 Kg8 Nc7 Bf7 Bc5 Bce6+ Ke7 Kg7 Bd6 Qbg8 Bc5 Na3 Kd6 Qa7 N7d5 c7 Kc6 c8B Be7 Nb5 Nc7 Qe1 Qf3 Qf2 Rh4 Qa6 Rf4 Qfh4 Ra2 Qa4 Qh5 Qc2 Ra5 Qa2 Rf3 Qf6 Rf4 Bh3+ Bd6 Qf5 Bc5 Bd4 Be7 Be3 Qh7+
1K3NNr/1bR1p1NN/1qQ1B3/bpN1rb2/1k5B/2Rp1Qn1/8/n1BR2bR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 g5 Kf3 b5 Ke4 b3 Kd5 d6 h4 Kd7 c4 b2 f4 g4 a4 g3 f6 g2 a5 Nc6 h6 Nd4 a6 Nf5 f7 Kc7 a7 Ng3 f5 Rb8 a8Q Nh5 f6 Rb7 h7 Rb6 c6 Ng3 h5 Qe8 c5 Bb7 h6 Qb8 Nh3 g1B Ng5 Ne2 Nd2 b1B Ne6+ Kc8 Bh3 Bh2 Nb3 Ba2 Ng7+ Kc7 Be6 Ng1 Qf3 Bc8 Qa6 Qa7 Rb1 Kb8 c7+ Ka8 c6 Ne2 Ra1 Bb1 Nc5 Ng3 Rd1 Bf5 Rb1 Bd7 c8R+ Rb8 c7 Bg1 Qb6 Qa6 Qc6+ Ka7 Rb3 Qb7 Rc3 Qb6 Re8 Rd8 c8R Qb7 Rc7 Bc8 Nh5 Bg7 f8N Rd7 f7 B7d4 Ng7 Bf6 Rc2 Bc3 Rd8 Ba5 Rc3 Bh2 Rh1 Nf6+ Kd4 Nfe4 Kd5 Rg8 h8N Bg1 Nh7 Nd2 f8N Nb3 Nf7 Na1 Nfg5 Rh8 Nf6 Kb8 h7 Qb6 Nb7 Ka7 Nc5+ Bb7 Ng8 Bb4 Na4 Ka6 Nc5+ Ka5 Nh6 Rg8 h8B Bc8 Ngh7 Bb7 Ne8 Rg5 Bf6 Rg8 Ng7 Rh8 Rdc8 Rd8 Bh4 Rd7 Rd3 Be1 Rd1 Kb4 Ng8 Bd2 Ra8 Rd8 Ra3 Be1 Re3 Rd7 Kd4 d5 Ke5 d4 Ra3 Rd8 Rc3 Rc8 Kd5 d3 Bf7 Be4+ Ke6 Bd2 Kd7 Bf5+ Be6 Ra8 Nb3 Ra2 Nc5 Be1 Kd8 Re2 Kd7 Ba8 Kc8 Bb7+ Kb8 Re5 Na6+ Ka4 Rc5 Bb4 Rc3 Ba5 Nc5+ Kb4
n1RQ3K/2Bp1Rb1/2RqR1Q1/1pQ1p1nB/1b1r3b/1k4B1/4N3/1b1RQr1N w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 Kf7 Ke3 g5 Ke4 b5 Ke5 g3 h4 e6 c4 g2 f4 g4 a4 g3 a6 Qg5 a7 Ba6 c6 Be7 h5 Qh6 a5 Ba3 c5 Bb4 c7 Ke7 c8R Bd2 c6 Qg5 h6 Rh7 c7 Qg6 f6+ Kf7 f5 Rh8 h7 Bh6 Nh3 g1B Be2 g2 Bf4 Bc5 Nf2 g1B Nc3 Qg5 Qe1 Ba3 Bg3 Ne7 Rd1 Qg7 Bh5+ Qg6 Ne2 Bb7 a6 Rd8 h8B Bg5 Rh3 Ng8 Nh1 Rf8 Rh4 Bd5 Re4 Bc4 Bg7 Bd3 Bh6 Bgc1 Bhf4 Nh6 Re3 Bf2 Re4 Kg8 f7+ Kg7 Re3 Bb4 Re4 Bb1 Re3 Rg8 f8R Bca3 Rf6 Rf8 Rf7+ Kg8 f6 Bb2+ Rc3 Qd3 Re8 Qd2 c8Q Ba1 Qc5 Bb2 Bh2 Bh4 Bfg3 Qd3 Rc8 Ba1 Re7 Bb2 f7+ Kg7 Kf4 Kf6 Rc2 Qd6+ Ke4 Rh8 f8R+ Nf7 Rfe8 Rf8 Rc6 Qd2 Bc7 Qd6 Bg3 e5 Rc8 Bc1 Ree8 Bh6 Re6+ Kg7 Kf5 Ng5+ Rf6 Kg8 Kg6 Bg7 Re6 Nh7 Re8 Ng5 Re7 Rf4 Rf7 Rd4 Rb6 Nc6 Rb8+ Nd8 Rc8 Rb8 a8Q Rb6 a7 Ra6 Rf2 Ra1 Rh2 Kf8 Qac6 Kg8 a8Q Kf8 Rf6+ Ke7 Rf2 Nde6 R2f4 Ra3 Q6b6 Rf3 Qba6 Rf1 R4f5 Nh3 Kh7 Nhg5+ Kg8 Nf4 Rf7+ Ke6 Rc3 Nd5 Q6c6 Bh6 Kh8 Nb6 Rc2 Bf8 Rf3 Bh6 Ra3 Bf8 Ra6 Bh6 Qb8 Na8 Qg2 Bf8 Rc6 Bh6 Ra2 Bf8 Raa6 Bg7+ Kg8 Rc4 Qe4 Rd4 Rd8 Bd2 Rcb6 Bb4 Qh7 Bf8 Kh8 Qc6 Qg6+ Rf6 Qcc3 Kd5 Qc8 Qc5 Re6 Rf1 Rac6 Bh6 Rg8 Qd6 Qe8 Bf8 Qe7 Bh6 Rc8 Bf8 Qd8 Bg7+ Kg8 Bc5 Qa3 Kc4 Qa7 Kb3 Qb6 Bb4 Qc5 Bf8 Kh8 Bg7+
BN1k1bNq/Bp1brn1n/1K2Q2N/1N1r3p/p1rB1Q2/R7/R5r1/1R3N1R w - - 0 1 illegal: No proof kernel
3r4/2p1R1B1/2nNpK2/bqpn1QBQ/BR2Q2p/k1NQ1Q2/r2B1N1n/7b w - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 hxg5 b4 c4 b3 c5 d6 axb3 dxc5 b4 Kd7 b5 Ke8 Ke2 Kd7 Kf3 Kd6 Kg4 a5 b4 h6 d4 a4 f4 e6 d5 a3 f6 a2 f5 Ra5 b6 Bb7 g6 h5+ Kg5 Bg7 g4 Ba8 b7 Ra7 b5 Qe8 f7 Nh6 f8Q+ Qe7+ f6 Ng8 b6 Nc6 b8Q Ra3 b7 Rf3 Qd3 Ne5 Bd2 Rg3 Nh3 Rh6 Nf2 Nc4 Nc3 Rf3 Rb1 a1N Qbe8 Ne3 b8Q Rg3 Qb7 Rh7 Rb4 Bh8 g7 Nh6 g8Q Bg7 Qgf7 Ke5 d6 Nac2 d7 Nc4 d8B Nd4 Qbe4+ Kd6 Kg6 Re3 g5 Ng4 Be2 Rh8 Bd1 Rf3 Ba4 Nce3 Rh2 Bh6 Qh7 Rh3 f7 Nd5 Qdf3 Rg3 Qb5 Nc6 Qbd3 Bg7 Qe8 Be5 f8B Rg2 Bg7 Qd7 Qef7 Bb7 Q7f5 h4 Qh5 Bf6 Rh3 Nh2 Rg3 Be5 Bdf6 Rd8 Rg4 Ne7+ Kf7 Qc6 g6 Qb5 Bfg5 Kc6 Rg3 Kb6 Rg4 Bg3 Rf4 Ka5 Rg4 Nf4 Kf6 Ba8 Bh8 Bb7 g7 Nc6 g8N Ba8 Ne7 Nd5+ Kf7 Bf4 Nc8 Be5 Bg7 Bg3 Nh1 Be1 Nd6 Re2 Nf2 Bb7 Bdf4 Ra2 Bd2 Nf4 Rc4 Ba8 Bc1 Ng2 Rf4 Qb6 Qee3 Nb4 Qfe5 Rc2 Ncd1 Na6 Qb7 Qb5 Qee2 Bc3 Bd2 Ra2 Rf6 Nb8 Qef5 Bb4 Nc3 Nf4 Qg2 Bf3 Qee4 Nc6 Qg3 Bh1 Qgf3 Nd5 Kg6 Qb8 Rf7 Qb6 Re7 Qb5 Ncd1 Bc3 Rd4 Qc4 Kf7 Kb4 Kg6 Ka3 Kf7 Qb3 Rc4 Bb4 Nc3 Ba5 Rd4 Qb8 Rb4 Qb5 Kg6 Nf4+ Kf6 Nd5+
3b1n2/2R2p1R/bBNNqKNQ/2R3N1/pqr2R1R/QBrp1p2/4Q3/nk6 w - - 0 1 illegal: No possible last move
2rR1r1B/kr5q/2n2KB1/b1p5/1BN5/nNRbNn2/1NBN4/3NQ2N w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 a5 g4 axb4 d4 e5 dxe5 h5 gxh5 Ra2 Qd4 Ra6 Qd1 Ra8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 h4 Kb6 f4 g5 f6 g4 d6 g3 e6 g2 Ke5 b3 h6 b2 h7 Na6 d7 Ka7 e7 Kb6 e8B Nc7 f7 Be7 f8N Ra3 f5 Kb7 h5 Ra5 f6 Ra7 b6 Nh6 f7 Na8 Bd2 Nf5 h6 Kb8 b7 Ra4 Ng6 Nh4 f8N Ra2 Ne2 g1R Ne6 Qa5 d8N Bd6+ Kf6 Bc7 Ng3 Nf5 Nh4 Bd6 Bg6 Ne7 Ng7 Rg2 Nc6+ Kc7 b8N Kb6 Bfd3 Rg1 Na6 Rg2 Nc3 b1N Bc2 Bb7 Rh3 Nc7 Nh1 Nf5 Qe1 Rg3 Nab4 Qa8 Nd1 Qa6 Nd3 Rc8 h8N Nd4 h7 Na3 Bb4 Rf3+ Ngf5 Nce6 N3b2 Qd3 Na5 Ng5 Nb3 Be4 Nf7 Ka7 h8B Bc7 Ne5 Ba5 Nec4 Nc6 Rb1 Rf2 Nf3 Qd7 Rg3 Bd3 Nfd2 Nf3 Nfe3 Qh7 Rc1 Ra1 Rg5 Rb1 Rd5 Rg2 Rd8 Rg3 Bf7 Rg8 Bg6 Rf8+ Ke6 Qh4 Na1 Kb8 Ba4 Rf7 Bbc3 Bf1 Nd3 Rbb7 N3b2 Nfe5 Bb4 Qh7 Rc3 Ka7 Bac2 Nf3 Nab3 Rf4 Qe2 Rf8 Qe1 Rg8 Kf5 Bd3+ Kf6 Rf8+
k3NR2/n5R1/2pnb2r/1B1Br2B/1BNR4/Q3R2n/Br1B4/B3Knr1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 Qd6 a4 b5 axb5 a4 Nc3 Qb6 Nb1 Qa6 bxa6 c6 a7 Na6 b5 Rb8 b6 Bh6 Qe2 Bg7 Qd1 Bf8 a8B Rb7 Ra2 Rd7 Ra1 Rd8 Bc4 Bh6 Bf1 Bf4 Bb7 Bb8 Ba8 Ba7 bxa7 Bd7 Qe2 Be6 Qd1 Bc8 d4 Kd7 f4 Kc7 g4 e5 d6+ Kb6 g5 h5 d7 h3 g6 h4 d5 h2 d6 e4 g7 h3 f6 a3 f5 e3 f7 a2 f8B e2 f6 Re8 d8R Re3 d7 Nc5 f7 Rh5 Qb3+ Kc7 Nc3 Re7 Bb7 Ne4 a8B Kb8 Qa3 Rc5 Bg2 Rf5 Nd5 Nf2 Ba6 Rf6 Bb5 Rd6 Nf3 Rh6 Bd2 Rg6 Nc7 Rh6 Ne8 Ne4 Bb7 Nd6 B7a6 Ka8 Rg1 h1N Ne5 h2 Nc4 Re5 Bd5 Ne7 g8B Nf2 Rg7 h1N Rb1 Nh3 Rb3 Ng3 Re3 Ng6 Be7 Nf1 Bf6 Ne7 f8B Nef5 Bgf7 Ne7 Bh5 a1R+ Qc1 Ra2 Qa3 Rf5 Bfc3 Re5 Ba1 Nef5 Be7 Rb2 Bf8 Nd4 Be7 Nb7 Beb4 Nd6 Nc7+ Ka7 Rf8 Kb8 Ne8 Ka8 Ba4 N4b5 d8R Na7 Bb3 Ne4 Rd6 Be6 Rdd7 Nd6 Bb5 Bf5 Ba2 Bg4 Rdf7 Be6 Rf4 Ng5 Kf2 e1R Rfe4 Rc1 Rd4 Nh3+ Ke2 Rcc2 Ke1 Rc3 Re2 Rg3 Re3 Rg1
1r1NK1NN/RN6/bB1N2q1/4n2n/1r3b2/1Rb1B1bB/N1NQ1q1k/1B1b1n2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 a5 f4 a4 b4 c6 b6 h3 b5 a3 g5 e6 f6 h4 b7 h2 f5 h3 g6 a2 b6 Qe8 f7 Rh7 g7 Ra6 f6 Qe7 Na3 Rh6 Nb5+ Kd7 Ke5 c5 d4 c4 d6 c3 d5 c2 Nf3 Qd8 Qd2 Rh8 Ne1 Nh6 g8B Nf5 Bh7 Ng7 Bg2 Be7 f8B Qe8 f7 Nh5 Bg7 Bh4 f8N+ Kd8 d7 Ke7 d8N Ra4 Bhe4 Rb4 Nd6 Qg6 Rb1 Rg8 Rb3 Rh8 Rf1 h1N Bd3 h2 Bh3 N1g3 Rf2 Na6 b8N h1B b7 Nc5 Nbd7 Bf3 b8N Nf1 Na6 Bd1 Nf6 Bg3+ Rf4 Rg8 N8b7 Rh8 Bh6 a1B+ Bb2 c1B Bd4 Bc3 Bb1 Rg8 Nc2 Rh8 Nb5 Kf7 Kd6 Nd7 Bb6 e5 Bg5 Kg7 Ke7 e4 d6 e3 Ng8 Ne5 d7 e2 d8N e1Q N5d6 Qf2 Rf5 Ng4 Ra5 Ne5 Qd3 Bcf4 Qd2 Qf6+ Ke8 Qh6 Nfe6+ Kg6 N8f7 Qg7 Ned8 Qh7 Nac5 Qg7 Nce4 Qh7 Nbc5 Ba6 Ncb7 Qg7 Nec5 Qf6 Nd3 Qf5 Nc1 Qg4 Nc8 Kf5 Na2 Ke4 Ncd6+ Kf3 Bh6 Qg6 Raa3 Bae2 Ra7 Ba6 Bf5 Kg2 Bh3+ Kh2 Bg5 Nd7 Bh6 Bfe5 Bhe3 Bef4 Ke7 Ne5 Kf8 Rh7 Nh8 Rf7+ Ke8 Rc7+ Kf8 Rc8 Ke7 Rb8 Kf8 Qf5+ Ke8 Qg6+
b5B1/2N3n1/nK3b2/1p2BnNk/1B1BrBR1/6Rb/bb1q2B1/Q2RB1Rr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 e5 d4 h5 f4 b5 a4 c5 g4 h4 d6 h3 d5 e4 d7 c4 Kd4 b3 d6 e3 Kc5 c3 f6 Kg6 f7 c2 a5 h2 f5+ Kg7 f6+ Kg6 a6 e2 a7 e1N Nh3 b2 Nc3 b1B Nd5 Rh6 Bf4 c1B Bg2 Bd2 Rg1 h1B Nc7 Nc6 Kb6 Qe7 d8B Na5 d7 Bg7 f8B Bb7 f7 Qe8 Bb4 B7e4 f8B Nf3 B8d6 Bdc3 Bde5 Nh4 Bdf6 Nb3 d8B Nc5 Qc1 Rc8 a8R Qd7 R8a3 Bb2 Rg3 Bf5 Bde7 Qd3 Be1 Na6 B7b4 Qd2 Qc3 Ba2 Rd1 Re8 Qa3 Bf7 Qa1 Ne7 Bd4 B5e6 B6e5 Ba2 Bb7 Bf6 Bg2 Kg7 g6 Nef5 g5 Bfe6 Bf1 Ba8 Bg2 Kh8 g7+ Kh7 g8B+ Kg6 Rg4 Kh5 g6 Ng7 Ng5 Re7 Rg3 Bh3 Rg4 Nhf5 Rg3 Ne8 g7 Rh8 Bb3 Rh6 g8R Rh8 Rg6 Neg7 Bg8 Rh6 Ne4 Re8 R6g4 Re7 Ng5 Re6+ Bed6 Re4 B6e5 Kg6 Bf1 Bg2 Rb1 Rh1 Rd1 Bh3 Bg2 Kh5
8/4R2B/kN2rQ1R/bn1r1K2/2bq1B1p/Bn6/RRqNRbrR/B4R1b w - - 0 1 illegal: No possible last move
r2qR2B/R3Bk1r/N1n2rp1/n1B2Bbb/3N1R1B/3R4/1QrB2qB/1K1q4 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 a5 f4 c5 h4 e5 d4 g6 Kd2 e4 Kc2 g3 h5 a4 b6 e3 f6 a3 b7 a2 d6 g2 h6 c4 d7+ Kf7 b5 c3 f5 e2 b6 e1R h7 Nc6 b8B Ra3 d5 Bg7 b7 Qb6 d8B Ra6 d6 Nge7 d7 Ra8 Na3 Qa7 Qe2 Ng8 Nb5 Qd4 Bh2 Nb8 Nf3 g1Q Bd2 Qgg4 Nc7 Qf2 Nd4 Qh5 Bh3 Qhf3 Rf1 Qg1 Na6 Qd5 Rf4 Nc6 b8R Rf1 Be7 Qg3 d8B Na5 Rb3 Qgg2 Qb5 Rf2 Ra3 Bf8 Qb2 Bh6 Kc1 c2 Rd3 Rf3 Bc5 Ne7 Bg4 Kf8 f7 Bg5 Bh3 Kg7 f8B+ Kf7 f6 Nec6 Bf5 Qd7 Bfe7 Rf2 Bc7 Qd8 Bg3 Be6 Bh4 Bd5 Be5 Bf3 Be5d6 Bh5 Bb8 Re8 h8B Ra7 Re4 Rg8 Bh2 Ra8 Rg4 Rg7 Rf4 Rh7 Bc8 Qe8 Nb4 Rf3 Bf8 Rf2 Re4 Qd8 Re8 Nb7 Bfe7 Rf4 Rb1 a1Q Bh3 Qaa5 Ra1 Qa4 Ra2 Qb3 Ra7 Nba5 Na6 Qa4 Nf5 Ke6 f7 Rf3 f8R Qag4 Qb5 Rf2 Kb2 c1R Nd4+ Kd5 Ka2 Qd1 Qb2 Rc2 Bg4 Re2 Bh3 Re6 Rf4 Rf6 Bg4 Qde2 Kb1 Ke5 Nf5+ Ke6 Nd4+ Kf7 Bf5 Qd1+
B2q1kb1/4r1qr/pQ4Rb/K4r2/R1NR1R1r/RR4Rn/1BNN4/3N2nq w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 h5 g4 e5 f4 c5 d4 e4 Kd2 a6 Kc3 h3 g5 e3 d6 e2 b6 e1Q+ Nd2 h4 b7 c4 d5 h2 b5 h3 Kb4 c3 f6 c2 f7+ Kd7 b6 Qe6 g6 Rh5 f5 Qe3 g7 Qeg5 f6 Qg3 Ne2 Qd3 Ra4 Qe7 Bg2 Rh4+ Ka5 Qf5 Rg1 h1Q Nc3 h2 Bb2 c1R Qb3 Rb4 Nd1 Nh6 g8R Qfe4 Rg3 Kd8 d7 Bg7 f8N Ng8 f7 Ra7 Ng6 Qd3 Ne5 Nh6 Nec4 Ng4 f8N Qe5 Ne6+ Ke7 d8R Bh6 Rf8 Nd7 b8R Nf2 b7 Nh3 Rf4 Qg7 Nd4 Ne5 Nc2 Nf3 d6+ Ke8 d7+ Ke7 d8R Be6 Ba1 Bg8 Bb2 Rb1 Rdd4 Rc1 Rf1 Nfg1 R1f3 Rb1 Rc8 Rc1 b8R Rc7 Nc3 Rf1 Nd1 Rd7 Rb6 Rb7 Rc7+ Ke8 Rc5 Re7 Rbg6 Rbb7 Qb6 Rbc7 Rde4 Qd8 Rd4 Rf2 Rfa3 Rf3 Rh4 Rf5 Rhf4 Kf8 Ba8 Ra7 Rdd3 Rad7 Rdb3 Rd4 Rd5 Rde4 Rf1 Rh4 Rff3 Qg2 Rf4 h1R Bc3 Rh2 Bb2 Qh1 Qc7 Rh5 Nb4 Bg5 Bc3 Rh7 Qb6 Bh6 Nc2 Nf2 Ba1 Rh4 Bb2 Rff7 Rdd3 Nfh3 Rdd4 Rf5+
4Rr2/pb1nN1B1/2q1Kn1N/r1B3Br/B2b2n1/BQ1B3R/1NBNp2b/6k1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 b4 Kf4 g4 h5 g6 e3 d6 e5+ Kd5 c5 d4 c4 d7 h4 b6 e4 b7 c3 g7 c2 b5 h3 b6 h2 g5 Be7 g6 Ba3 Nc3 Qe8 d8B Rh5+ Bg5+ Kf5 f4 e2 Nf3 Kg4 f5 Kg3 f6 Kf2 f7 e1B f8B e3 Bc5 Qe7 Bd3 Rh3 Na4 Kg2 Nd2 Rh8 Nb2 Nh6 g8B Na6 b8B Ng4 g7 Kf2 b7 Qf8 Bgh7 Qe8 g8B Nh6 Be5 Nb8 Bg7 Nd7 b8N Bb7+ Nc6 Ng4 Ra2 Qc8 Ke6 Ngf6 d5 Kg2 d6 e2 Ne7 Bf2 Rf1 Bb4 Ra3 h1N Bf7 Bc3 Be8 Bfd4 Rf4 Rb8 Re4 Nf2 Bf5 Rh5 Re3 Nb6+ d7 N2g4 Re4 Qc7 d8N Nbd7 Nf7 Bg1 Rb3 Bh2 Nh6 Bd4 Bfg6 Nb6 Beb5 Nbd7 Ba4 Rf8 Re3 Ba6 Rb8 Bb7 Re8 Qc8 Rh3 Kf2 Nbc4 Qa8 Bb2 c1R Qb3 Kg1 Bba3 Ra1 Nb2 Qc8 Bc2 Qc7 Bgd3 Qc6+ Bd6 Rf1 Bc5 Rf5 Ba3 Ra5 Bc5 Qc7 Ba3 Qc8 Bdc5 Qc6+
3b1kN1/Rq1Qn3/r4N1q/NB2pp1B/rBNN4/N3B2n/2q2rNK/3b2R1 w - - 0 1 illegal: No proof kernel
1R3R2/2rnRnKQ/1B1N1Bp1/3b1rB1/4qp1R/1R1r2bR/2N3nR/1Bq2k2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 a5 d4 f5 h4 c5 d6 a4 h6 f3 h7 f2 d5 a3 d7 g6 d6 a2 b6 Nf6 h5 Ra7 b5 Ne4 b7 Ra3 h6 Be7 b6 Bf8 Bg5 f4 Nf3 Rg8 h8R Rg7 h7 Rg8 Nc3 Ng3 e4+ Ne2 Rh4 Ra7 Ne1 Qe8+ Kf6 Ra3 d8R Rg7 e5 Rc7 d7 Be7+ Kg7 Ra5 Rb1 a1R e6 R1a3 Nb5 Rd3 Rb2 Ng3 Qh5 Ne4 Nc2 Nd6 Rh3 Nf7 Nd6+ Kc3 Rf8 Kd2 h8B c4 Qh7 c3 Be2 Rf3 Bd3 f1N Be4 Ke2 Rh4 Na6 b8R Ne3 b7 Kf1 Rb3 Rh3 Ra8 Rb5 b8R Nc5 Raa3 Bb7 Rdc8 Ra5 d8B Nd7 Ra2 Rf5 Rab2 Rc6 Bb6 Ng2 Ra2 Bd8 e7 Rd3 Rc7 Ba8 Rca7 Rc7 R7a3 Bd5 Rab2 Nc5 Rba2 Qc6 e8R Nd7 Re7 Qb7 Kg8 Qa8 Bhf6 Qa4 Kg7 Qd4 Ne1 c2 Rab2 c1Q Rba2 Rf3 Bb1 Qe4 Re2 Rd3 Nc2 Ne3 Reh2 Ng2 Re5 Rd2 Rbh3 Rd3 Rb3 Be7 Nc8 Bb4 Nd6 Be1 Re7 Bg3
rR2N2K/4NRN1/N3bnR1/b1B2r2/4nkr1/3B1Npq/p1NR2rQ/1q3N2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 a5 h4+ Kh5 b4 c5 d4 g5 f4 c4 b6 a4 f6 a3 f7 c3 b7 e6 b5 a2 f5 c2 b6 Ra6 d6 Ra5+ d5 Ne7 Kf6 e5 d7 e4 d6 e3 Ba3 c1R Qd2 g3 Bd3 Kg4 h5 e2 h6 e1Q h7 g2 Rh6 Ra6 Rg6 Qg3 Bc5 Rc4 Nf3 g1R Qh2 Rf1 Nbd2 Qf4 Rd1 Rf2 Nf1 Rg8 h8N Qg3 Rd2 Qc7 d8N Rg7 d7 Rg2 Nc6 Raa4 d8N Qh4 Ne6 Rg3 Ncd4 Na6 b8N Rg2 b7 Qh3 Nc2 Rf4 Nd7 Rg8 Ng7 Qb8 Ne8 Bh6 f8R Nd5+ Kf7 Rac4 f6 Rf5 Ng7 Rcf4 Re8 Rd4 Re7 Rd8 Re8 Rdf4 Kg8 Ra4 f7 Rc4 Be3 Nc5 f8R Ne4 Rf7 Rb4 Bc5 Rc4 Qg1 Kf4 Nf6 g4 Qh2+ g3 Ref8 Be6 Nfe8 Qa8 b8N Qb7 Na6 Ra8 Rf6 Qb1 Ng6+ Kg4 Ne7 Kf4 Rg6 Bg5 Nc6 Bd8 Ne7 Bc7 Be2 Ba5 Bd3 Qg4 Kh8 Ndf6 Nd6 Ra4 Rb8 Rd4 Qh7 Qh3 Nde8 Rdd5 Qh6+ Rg5 Qh5 Rg4 Qh4 Rf5 Qh7 Qh1 Qh2 Nh7 Qg1 Qh3 Qh2 Nhf6+
Q3N3/2R2q2/1RR2B2/1K1pNN2/N1pr4/2pqn1b1/2BN1qkN/NbR2rn1 w - - 0 1 illegal: No proof kernel
2R1q1B1/qKRRp1RR/7b/NR2rR1b/6p1/BNr2Q2/n1p1B2k/1b3Bn1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Ke4 g5 f4 b5 d4 c5 h4 b4 a4 g3 f6 b3 h5 c4 f5 g4 h6 g2 h7 c3 a6 b2 a7 c2 a5 Be6 f7 Nd7 a6 Qe8 f6 Nb6 Nf3 g1Q Nbd2 b1B Nc4+ Kc7 d6+ Kd7 d5 Nc8 Ra5 Qf2 Nd4 Qh2 Rb5 Qd8 Nb3 Qh5 Qf3 Ba2 Ba3 Qh6 Nca5 Bg7 f8R Qg5 f7 Nh6 Rg8 Qh4 f8R Qe8 Rf5 Nb6 Rh2 Rc8 a8B Qf6 a7 Nf7 Rh3 Bf8 Rg7 Bb1 Rhh5 Rg8 h8R Qa1 R8h7 Ne5 Rc5 Bf7 Rc7+ Kd8 d7 Na4 Bc6 Nc3+ Kd4 Rh8 Kc5 Na2 Kb6 Rg8 Rhg5 Bh5 a8B Rh8 Bcb5 Rg8 Qg3 Nf3 Bbe2 Ng1 Qf3 Qd4+ Kb7 Qf2 R7g6 Bh6 Rb6 Rg6 Rb5 Re6 Rgg7 Re5 Rcc5 Qg6 Ka7 Re6 Bc6 Kc7 d8R Qf7 Rf8 Kd6 Kb7 Re3 Bd7 Rc6 Rc8 Qe8 Be6 Rc3 Rc4+ Rc5 Bg8 Qe3 Rf8 Ke5 d6 Rd5 d7 Qf2 d8R Qd4 Qf7 Ke4 Rd6 Re5 Rd7 Ke3 R4c7 Qc5 Bf3 Kf2 B3e2+ Kg3 Qf3+ Kh2 Rf5 Qa7+
7B/k7/p1rN1Bn1/R5NR/2q1NpQN/1Nr1pR1K/4RN2/1R2qrb1 w - - 0 1 legal: proof: g4 d5 c4 b5 cxd5 h5 gxh5 c6 b4 Qd6 a4 Qe5 axb5 Qd6 b6 Ba6 b5 Bc8 b7 Qc7 b6 Qd8 f4 Bf5 d6 Kd7 e4 e5 d4 Bh7 Bb5 Ke6 d7 cxb5 d5+ Kd6 Qb3 Kc5 Qd1 Nc6 d6 Bf5 Qg4 Be6 Qd1 Bd5 exd5 e4 Qc2+ Kb4 Qd1 Ne5 fxe5 Kc5 Kf1 g5 Kg2 f5 b8N b4 h4 a6 h6 f4 e6 b3 h5 b2 b7 Kb6 e7 g4 e8N g3 h7 Qf6 d8N Qh6 d7 Qf6 h6 Ba3 d6 Qe6 Nf7 Qe7 d8R Qf8 d7 Ka7 Ned6 Nf6 Ng5 Ng8 Nc3 b1Q Qg4 Nf6 Re8 Qg7 d8R Qb6 Rh5 Qb4 N1h3 Qb6 Bb2 Qc5 Nf2 Qb4 Nd7 Qg8 b8R Qa2 Kh3 g2 Nc5 g1R Nb3 Nd7 Rf1 Rf8 h8N Ne5 h7 Rf6 Ng6 Qc4 h8B Qb1 Rb4 Qe1 Nh4 Rc8 Ra4 Rc6 Rb8 Bc5 Ra5 Ng6 Re5 Qa1 Rb1 Rf1 Rbe8 Rc8 Rd5 Rc6 Rd3 Rf8 Re6 Rfc8 Rf3 Bd4 Ncd1 Bc5 Bbf6 Qac3 Re5 Qe1 Nc3 R8c7 Ra2 Bd4 Re2 Bb6 Ra5 Bd4 Nh1 Bg1 Nf2 e3 Nce4 Rd7 Ndf5 Rd3 Nfd6 Rc3
2R4r/1qq1R1qn/2R3Rr/QB5N/R1B3b1/2bRr2n/1k4Nn/N3NKN1 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 h4 Kd7 d4 Kd6 h5 e5 h6 c5 b6 a5 h7 e4 b7 a4 b4 a3 b5 c4 b6 g4 f6 c3 f7 c2 Bb5 c1Q Rh6 g3 Kf1 a2 Nd2 e3 Qe1 Qdc7 Ndf3 Q1c6 Qa5 Ne7 g8B Bf5 g7+ Ng6 Ne1 Be7 f8R Bc2 Rf6+ Kd7 d6 Ra6 d5 Ne5 Rfg6 Ke8 d7+ Kd8 Bf7 Bg5 g8N Bd1 Nf6 Ke7 d8R Nbd7 b8R Kd6 b7 Kc5 d6 Kd4 Rbc8 Nf8 b8R Nf3 d7 Q6b7 Nh5 Bf6 Bfc4 Be5 Ra8 Bg7 Rb1 a1Q Re8 Re6 d8N Qb2 Re7 e2+ Kg2 Qa1 Rb3 Bf6 Ra6 Bg7 Rc6 Rd6 Rb4 Kc3 Ra4+ Kb2 Ne6 Bc3 Nc5 Rf6 Nb3 Rd6 Kh3 g2 Kg3 Re6+ Kf2 Re3 Rgd6 Re6 Rd3 Rf6 Nc2 e1R Rg6 Re3 Ne1 Rd6 Rg3 Rh6 Rgg6 Rg8 h8N Nh7 Rgf6 Be2 Ng6 Rh8 Nh4 Bd1 Rg6 Be2 Nh3 g1N Nhg2 Bd1 Ng5 Nh3+ Kf1 Qc1 Na1 Qd2 Rdd6 Qd4 Rdd7 Qg7 Rdd6 Ne5 Rd3 Bg4 Ngf3 Qbb8 Ba6 Qbb7 Ng1 Nf3 Bab5 Nh2#
2N1NK2/BNR2p1b/R1Rb1qB1/Nq1pR3/1n2R2R/2qk4/1Qp3N1/4r2n w - - 0 1 illegal: No possible last move, all moves rejected
1R6/n1Q1KR2/Rb4B1/R1BN1bB1/qBRb3r/1k2q3/3rB1br/Rnq3N1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 a5 b4 h5 g4 e5 d4 c5 f4 a4 b6 a3 f6 e4 g5 h3 b7 e3 b5 h2 g6 h4 b6 h3 f5 e2 f7 e1R f6 a2 g7 Qe8 Bd2 Rh7 Be2 Qd8 Bb4 Na6 b8R Qe8 b7 Bf5 Rc8 Nb8 Nc3 Ra4 Qc2 Ne7 g8B Nbc6 b8R Na7 Rb6+ Qc6 Ra6 Rd1 Rb8 Rh5 Bh7 Rd2 Bg6 Rh4 Rc1 a1B Rb5 Bb2 Rba5 Ra2 Ra1 Bh6 f8R Be3 f7 Bf2 Rc8 Be3 f8B Bf2 Na4 Bc3 Nb6 Qa4 Nf3 Be3 Rhf1 h1B Ng1 h2 Rf3 Bg2 Rc7 Bfh3 Rf7 h1Q Rc8 Bf5 Rb8 Kc7 d6+ Kc6 d7 Nd5 d8B Qh3 Bg5 Bb2 Bfe7 Nc3 Bf8 Nb1 Bd6 Bf4 Bde7 Bc7 Nd5+ Bb6 Qc3 Kd7 Qg3 Ke6 Qc7 Qe3 Bf8 Nc6 Bd6 Qaa3 Kb5 c4 Bdc5 c3 Kc4 c2 Rc8 c1Q+ Kb5 Ne7 Rb8 Nc8 Kc6 Qeb3 Bf1 Re4 Nc3 Rh4+ Nf3 Bgh3 Ng1 Rh2 Be2 Nd6 d5+ Ke5 Qa7 Nb5 d6 Qaa4 d7 Bf1 d8R Bg2+ Rd5+ Ke6 Qc7 Qba3 Ne4 Qae3 Rd2 Bd4 Rc2 Bgh3 Rc3 Rd2 Nf6 Bf1 Kb7 B1h3 Kc8 Na7+ Kd8 Bf1 Ng8 Kd5 Ne7+ Ke4 Rc4 Bg2 Bd1 Kd3 Nd5 Nc3 Be2+ Kc2 Bf4 Kb3 Bg5 Qh3 Ke7 Nb1 Bd3 Qf3 Be2 Qe3+
3k2K1/1R4nb/Brb4B/BNnr1q1B/R1b1n3/1B2RB2/1nR4Q/r1bN2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 a5 b4 c5 e4 h5 g4 c4 d4 a4 g6 c3 g5 a3 g7 a2 d6 c2 b6 h4 b7 h3 g6 h2 e5 Ne7 g8B Ra4 e6 Ra8 b5 Bh6 b6 Nd5 d7+ Ke7 g7 Qf8 d8R Ra4 Ne2 Bg5 Qd2 Nc3 d5 Rb4 d6+ Kf6 d7 Ke7 Nd4 Na6 b8R Rc4 b7 Rc6 Nb5 Rb6 Rg1 Ne4 N1c3 Rh5 Nd1 h1B+ Qg2 Nac5 Re8+ Kf6 Be3 c1N e7 N1d3 d8B Nb2 Bb3 Be6 g8B Bf7 Ra8 Bg6 Rc1 a1R b8R Qf7 Rc4 Ke6 Raa4 Kd7 Rc2 Qf8 Bgd5 Bh6 Ke2 f3+ Ke1 f2+ Ke2 f4 Kf3 Bg5 Kg4 f3 Qh2 Bg2 Bd3 f1B Rb7+ Kc8 Be2 f2 Bdc4 Bh6 Bf3 Rd5 Kh4 Qf5 Bg5 Bh7 Kh5 Be2 Bd3 f1N Bdc4 Ne3 Bd3 Bg7 Bdc4 Bf6 Kh6 Bg6 Bf4 Bg5+ Kg7 Bh6+ Kg8 Bh1 Nc7 Bg5 Ba6 Bc4 Nb5 Bh6 Rf8 Bg2 e8B Bh1 Rf6 Bg2 Re6 Bg5 Bdc7 Bh6 Bce5 Kd8 Bc3 Ng5 Re5 Qd7 Nf2 Bh7+ Kh8 Rd3 Bb4 Nf5 Bd5 Ng7 Nd1 Qf5 Bh5 Bg6 Ba5 Be4 Kg8 Bg2 Bf7 Bc6 Bd5 Rd4 Re6 Rd2 Bdf3 Rd5 Ree2 Nge4 Bfd2 Bg5 Bf4 Bh4 Bh6 Bg5 Ree1 Bc1 Re3 Bh7+
k1b1N3/2r2R2/K1RB3Q/2rr2nN/1NB1B1Nn/Nr4q1/q1B2q2/1qB1b1N1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Qb3 Kd7 d4 f5 Kd2 c5 Kd3 Kc7 Kc4 Kb7 g4 a5 e4 a4 Bd2 h5 Rh4 a3 g6 f3 e5 f2 d6 a2 e6 f4 e7 f3 e8N Rh6 g7 Qe7 d5 Ra5 g5 Qd7 g6 Qc7 d7 Qb6 d8N+ Ka7 d6 Ne7 g8B Nec6 d7 Ka8 g7 Na6 Nf7 Nab8 d8N Be7 Bh7 Qc7 g8B Nd7 b6 Rd6 Na3 Nf6 Bg2 f1R Rf4 f2 Qh3 h4 b4 Ne4 b5 Rb1 Nh6 Ng5 Ne6 Rb3 Rc1 a1Q Ng4 Qa2 N6g7 f1Q+ Bd3 Bf6 Be4 Bc3 Be6 Rd7 Rf7 Rd8 Qh2 h3 Rc2 Qg3 b7+ Kb8 Qh1 Qff2 Bf4+ Ka7 b8B+ Ka8 b6 Ra7 Bbe5 Rc7 Be3 Bb4 Kb5 c4 Rc1 Rd4 Bd6 c3 Bef4 c2 b7+ Ka7 b8N Ne7 Nc6+ Ka8 Be3 Nf5 Kb6 Rb2 Bb3 Rd5 Ba4 Bd2+ Bab5 Rb3 Nb4 Be6 Ka6 Bc3 Rb1 c1R Rb2 Bd7 Rc2 Bd2 Rc6 Rcc5 Bbc4 h2 Bc2 Bc3 Ne2 Be6 Qg2 h1Q Qh2 Bd2 Qh6 Nh4 Nh5 Qhb1 Ng1 Be1 Bc1 Bc8+
qBRq1k2/rrp3R1/1NN3q1/1q6/NNn1QNBR/2n1K3/RqR2R1b/3b4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 b4 e5 g4 h5 d4 a4 f4 h3 b6 a3 g5 e4 f6 h2 b5 a2 d6 e3 b7 h4 g6 h3 g7 Ra5 f5 Ra8 b6 Rh5 d5 Ra4 d7+ Kf7 d6 Nh6 g8R Rg4 Qe1 Rgh4 Nc3 Ng4 Na4 Na6 b8N Nc5 b7 Rh6 Na6 Qe7 b8N Qe6 d8N+ Ke8 Rg7 R4h5 Nb4 Ne5 Nd7 Nc4 Ndb6 Ne4 Ndc6 Nc3+ Kf3 e2 Be3 Be7 f7+ Kf8 d7 Bd6 d8R+ Qe8 Qh4 e1Q Qe4 Qd2 Ne2 Rh4 Rc1 a1Q Rc2 Qb2 Nf4 Qd3 Rd7 Qd8 Be2 Rg6 Ra1 h1Q+ Kf2 h2 Ra2 Bb7 Bg4 Qhb1 Rh7 Rh3 Rh4 h1Q Bc5 Ne5 Be3 Qb5 Bd4 Rh2+ Ke3 Bc8 Re7 Be6 Bc5 Bc4 Bd4 Be2 Bc5 Bd1 Rd7 Kg7 f8R+ Qe7 Nc4 Rg5 Nfd5 Qa6 Qf4 Qf7 Nd3 Qc8 Nce7 Qb5 Rcb2 Qg6 Ba7 Qb4 Bb8 Qa6 Rc8 Qe8 Qf3 Qd8 f6+ Kf7 Rg2 Qf1 Rgd2 Qa8 Nc6+ Kg8 f7+ Kg7 Ndc5 Qg6 Nd3 Rf2 Qg2 Rf4 Qf3 Qb2 Rc2 Rgf5 Re7 Rd4 Qe4 Rg5 Na3 Rb4 Nc4 Rb7 N3b4 Qff5 Ncb6 Nc4+ Kd3 Rh5 Rd7 Bh2 f8R+ Kh6 Rdf7 Qfg5 Rff2 Kg7 R8f7+ Kg8 Re7 Q5f5 Rd7 Kf8 Nf4 Qfa5 Kd4 Q5a6 Kd3 Ra5 Kd4 Qb5 Kd3 Nd6+ Ke3 Raa7 Rg7 Nc4+
B4Nb1/k1nn4/2q5/2bpq1rN/K2RbRR1/N3NbnR/2R1QR2/2r1BN2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 h5 Kc2 e5 Kb3 h4 f4 e4 g4 d6 c5 Kd7 g6 Kc7 f6 Kb7 b6 d3 c6+ Ka6 c7 e3 f5 h3 f7 h2 b7 e2 g5 e1N g7 Nf3 f6 Bh3 c8R Bd7 g6 Ra7 Qe2 Nh6 g8N Be8 g7 Bb5 Bd2 Qe7 Ra4 Ng5 Be1 d2 Rc2 d1B Nf3 Ne6 Rg4 Nf5 Nh6 Nd8 g8N Nh4 Nfd2 Ne6 Na3 Bd3 Ka4 Nc7 b4 Bc4 Bg2 Qe5 Nf1 Nd7 b8R Nf5 Ba8 Ng3 Nf5 Rh5 Rd8 Rg5 N5e3 Rb7 b5+ Ka7 Rf4 Qe8 Rg1 h1B Rf2 Be7 f8N Be4 f7 Rb6 Rf4 Rc6 Nf6 Be6 Nh5 d5 Rh1 Bc5 Rh3 B6f5 Rb8 Bh7 Rb6 Bg8 Ra6+ Kb8 b6 Qe5 b7 Qf6 Qd2 Bdf3 Qe2 Qd6 Rb6 Ka7 b8R Qe5 Rb4 Qe8 Rd4 Qc8 Kb3 a4+ Kc3 Qa6 Rbb4 Qb5 Nb1 a3 Kb3 a2 Na3 Qb6 Ka4 a1Q Rg4 Bd3 Rdf4 Qe5 Rbd4 Bf5 Ng6 B5e4 f8R Be7 R8f5 Rc3 Nf8 Bc5 Rcd2 Rc1 Rc2 Bh1 Rf2 Bhf3 Rff4 Qc6+
3n1B1r/1q1bNBN1/b1pR3B/1b1NqQ1B/q4B1R/1n1N1N1K/1Nk4r/6b1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 b4 Kd6 d4 h5 f4 a5 Kf2 e5 Kg2 e4 f6 e3 f5 a4 f7 a3 f6 a2 g5 e2 g6 e1Q g7 c6 b6 Qe3 b5 Qa3 b7 Qa6 b6 Qa7 Qc2 Qe7 Bh6 Qd7 Nd2 Qf5 Be2 Rh7 Ngf3 Qd7 Qf5 Qa3 Rad1 a1Q Kh3 Be7 f8N Qa4 f7 Na6 b8N Nc5 b7 Nb3 Na6 Bd8 b8N Qb7 Ng6 Bb6 Ne7 Bd7 f8B Rh8 Nc5 Qc3 Bg5 Nh6 g8B Nf7 Nba6 Nd8 Nc7 Qe3 Bf7 Qe5 Bf4 Ba7 Kh2 h3 Nd3 Bb6 Kg3 h2 Kh3 h4 Ne6 Ra7 Ng7 Ra5 Bh6 Rc5 Bf4 Rc2 Nc4+ Kc7 Ncb2 Kd6 Ng5 Ba7 Beh5 Rf2 Nf3 Rd2 Rhg1 h1B Rg4 Bc5 Ng5 Be4 Nf3 Kc7 d6+ Kb6 d5 Kb5 Bh6 Bg1 Rf4 Be6 d7 Rh2+ Kg4 h3 d6 B4d5 Kh4 Bc4 Kg3 Qd5 Rh4 Qe5+ Kg4 Ka5 Bf4 Bb5 Rd2 Bec4 Kg3 Ne6 d8N Ba6 d7 Bcb5 Nc5 Kb4 Rd6 Kc3 Ncd3 Kc2 Kg4 Rf2 Kg3 h2 Kh3 h1B Bh6 Nec5 Nde6 Rd2 Nc7 Ne6 Ncd5 Nd8 Ng5 Be4 Nf3 Ne6 d8B Rg2 Qg4 Bf5 Bc7 Nd8 Bb8 Bd7 Qf5 Bc5 Ba7 Bf2 Bae3 Bg1 Bef4 Rh2+
r4RrQ/1pq5/1N2nn1q/1rN2b2/1b1k2r1/1B1BRB1n/K2B1BB1/N3NN2 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 e4 Ke7 d4 c5 Kd2 f5 Kc2 h5 Kb3 f4 a4 c4+ Ka2 f3 g4 f2 e6 Kd6 a5 c3 a6 h4 g6 h3 e7 c2 e8B h2 g5 Bg7 e5+ Kc7 e6 Kd6 e7 Bh3 a7 Rh4 Beb5 Rh6 e8N+ Ke7 d6+ Ke6 d7 Kd5 Nc7+ Ke4 d5 Bc3 d6 Bh8 g7 Rf6 g6 Be6+ Nd5 Nh6 g8B Rf5 g7 Qh4 d8B Qh3 d7 Rf4 Bg2+ Ke5 Bb6 f1Q d8N Nf5 Nd2 Nd7 Qh5 Rb8 a8N Qc4+ Nb3 Rg4 Bd2 Qe3 Qh7 Qh6 Ne3 Nd4 Rf1 Qc6 Rf7 Bf5 Ne6 Rd8 Na1 b3+ Kb2 Re8 Bd3 Qc8 Ka3 b2 Ka2 b1R Ba7 Rb5 Nf3+ Kd6 Rg1 h1N Re1 Nf2 Nf1 Kd5 Re4 Rd8 Ne1 Nh3 Rf6 Rf8 Bf7 c1R g8B Bg7 Qh8 Qd8 Bb6 Rc8 Bc5 Qc7 Ba7 Rg5 Bh5 Rg3 Bgf7 Rg8 Bhf3 Bf8 Bb6 Bb4 Ba7 Nb3 Bf2 Nd4 Nc5+ Ne6 Bg5 Rg4 Bd2 Rce8 Re3+ Kd4 Nb6 Neg5 B7d5 Ne6 Rf8+ Nf6 Bb3 Ra8+
2R5/B2q1bBK/4p1r1/2NBb3/BnNQ4/6Nq/1pn1bRpk/1N2rBNB w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Ke3 Kf6 Ke4 g5 h4 b5 c4 g4 f4 g3 a4 d6 h6 b3 h5 b2 h7 b4 h6 b3 a5 Nc6 a6 Qe8 a7 Nb4 c6 Nd5 c7 Ne3 c5 Ba6 c8B Bb5 c6 Qf7 c7 Qg6 Bd7 Bg7 c8B Qh5 Bb7 Qg4 Qd4+ Kf7 f6 Kg6 f7 Qe2 f8B Nc2+ Be3 Qd1 f5+ Kf7 f6 Kg6 f7 Bc4 Ba4 Re8 a8B Be5 Bg7 Qd2 Bf2 Kg5 f8N Kg4 Ra2 Bf7 Nd7 e6 Bd5 Ne7 Nc5 Nc6 Rh5 Rhf8 h8N N6b4 h7 Qh6 Rh1 Qh3 Ng6 Rb8 h8N Rg8 Ne7 Kh4 Bh6 Rg6 Nf5+ Kg4 Bg7 Rc8 Nc3 b1Q Rh2 Qc1 Nb1 b2 Be3 Rg8 Rf2 Qd2 Ra3 Qd1 Rc3 Rf8 Na6 Rd8 Rc8 Rd7 Nc5 Ra7 Be8 Ra1 Ba4 Qd2 Nc3 Re1 Nb1 Bg8 Nf7 Qd1 Nd8 Bf7 Ndb7 Qd2 Na5 Qd1 Bg2 Qd2 Bh1 g2 Bc4 Qd1 Bf1 Qd2 Nc4 Qd1 Nh6+ Kg3 Nf5+ Kh2 Ng3 Qd2 B8c6 d5+ Kf3 Bf6 Kf4 Qd3 Qc3 d4 Bd5 Qd1 Qd2 d3 Qc3 d2 Qe5 Rh6 Qd4 Be5+ Kg5 Qc1 Nge4 d1B Ng3 Qd2 Rf3 Rh4 Rf2 Bdh5 Kh6 Rg4 Kh7 Rg6 Bg5 Qd3 Bd8 Qd1 Bb6 Qd2 Ba7 Qd3 Nb6 Qb5 Nc4 Qd7 Qf4 Be2+ Qh4 Bh5 Qd4 Be2+
2QRN1q1/R1ppB3/K1N1RN2/n4rQ1/B4Q2/3r2b1/B2NR1n1/k4nb1 w - - 0 1 legal: proof: e4 a5 b4 b5 g4 e5 a4 h5 axb5 f5 gxh5 Bb7 exf5 e4 d3 e3 Rxa5 Bf3 Ra1 Be4 c4 Bd6 c5 Bxc5 dxe4 Bf8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Kf6 h4 g5 h6 g4 b6 g3 Kb5 e2 b7 e1B h7 g2 h5 Nh6 e5+ Kf7 e6+ Kf6 e7 Bg7 e8B Rf8 h8R Ra7 Ba3 Rf7 Qc1 Qc8 Nd2 Qd8 Ne2 g1N Ng3 Re7 Rh2 Nf7 h6 Re6 h7 Re2 Nh5+ Ke7 f6+ Ke6 f5+ Ke5 Bg2 Kd4 Bc6 Re6 Re2 Na6 b8Q Re3 Qc8 Bf8 Ng7 Ne5 f7 Nh3 f6 Bd6 f8N Bg3 Bf7 Ng4 Ba2 Bge5 f7 Ng5 Ne8 Bf4 Rg8 Rh3 h8R Nb8 Rh6 Rd3 Nh7 Be3 f8Q Nh2 Re6 Ngf3 Nhf6 Nf1 Qh6 Be5 Qg5 Bg1 Rf8 Rb7+ Ka5 Bd6 b5 Nh4 b6 Ng2 Ba4 Bg3 Be7 Nc6+ Ka6 Na5 Rh8 Rb8 b7 Ra8+ Kb5 Ra7 b8N Rb7+ Ka6 Rb5 Rf8 Rf5 Rg8 Nh2 Qf1 Kc3 Nc6 Kb2 Qff4 Nf1 Ng7 Qf8 Rh8 Qf7 Rd8 Qg6 Nge8 Qg8 Rb1+ Kc3 Rb3+ Kc2 Rb7+ Kc1 Ra7 Kb2 Bc5 Ka1 Bb4 Qg7 Be7 Qg8
Q4R1N/2n2NB1/7Q/Rq1brB2/2rN1Q1B/b1rR2r1/2qK1Nr1/q4k1B w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 b4 Kd7 d4 Kd6 b6 e5 b5 c5 g7 a5 g6 h5 f6 f3 b7 c4 b8R f2+ Kd2 e4 b6 a4 b7 h4 f7 h3 Qh5 h2 Nc3 a3 Bg2 f1Q Nh3 a2 Nf2 Qb6 Qh6 Qb1 Bb2 Ra3 Ne2 Ne7 g8Q Be6 g7 Rc3 Bf3 Qg2 Rd1 h1R Rc8 Rh3 b8Q+ Kd7 d6 Nd5 Rd8+ Kc6 d7 Nc7 d5+ Kc5 d6 Bd5 Nd4 Rg3 Re8 Qh2 d8B Qh5 d7 e3+ Ke1 e2 Kd2 e1R Bh1 Ree3 Bh4 Re5 d8N Bd6 Qf8 Rg8 Qa8 Qhf5 Qf4 Qd7 Qh6 Qb5 Qf4 Kb4 Qh6 Bc5 Qfd6 Qe4 f8N Qh7 Ng6 Rg2 Rab1 a1Q Nh8 Qf5 Ndf7 Qc8 Ne2 Kb3 Qdf6 Ba3 Qff4 Qf5 Rf8 Qc2+ Ke1 Rd3 Rd2 c3 Rbd1 Rd4 Rd3 Kc4 Rb1 Qcb3 Rc1 c2 Kd2 Rde4 Rb1 c1R Nd4 Rc3 Rg1 Rh2 Rg6 Rg2 Ra6 Rg3 Ra5 Rg2 Qfg5 Reg4 Qf4 R4g3 Rb8 Rc8 g8B Q3a4 Bh7 Qab3 Qf3 Q3a4 Be4 Qc2+ Ke3 Reg5 Ne2 Rcg8 Rf8 Rb3 Bh7 R8g6 Bg7 Rc6 Nd4 Re5+ Be4 Rb4 Rd1 Kc3 Rd2 Rb3 Rd1 Rc4 Rd3+ Kb2 Kf4 Kc1 Bf5 Rbc3 Re3 Kd2 Rd3+ Ke1 Qg4 Be4 Qgg5 Rg4+ Ke3 Kf1 Qf4 Bd5+ Be4 Qcb1 Kd2 R4g3 Bf5 Qc2+
2R5/1QBBbN2/bb1Q1R2/2NqNrbQ/nRb5/qQR2q2/3b1k2/B2K4 w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 Ra3 g5 Ra4 a5 Ra1 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bd6 Na3 Be7 Nb1 Bf8 d4 Ke7 b4 Kd6 e4 h5 g6 c5 g7 g3 b6 h4 b7 h3 b8R a4 b5 a3 b6 g2 f6 a2 f7 h2 e5+ Kd7 d6 Kc6 d5+ Kd7 b7 c4 Bb2 c3 Nd2 c2 Rc1 a1B Ne4 Be7 f8Q Nf6 g8R f2+ Kd2 Rh3 Nf3 g1B Qf7 Rh5 Bh3+ Rf5 Rg6 Qf8 e6+ Kd8 d7 Kc7 d8N Kb6 d6 f1B d7 Bc4 Ne5 f3 Nc5 Nd5 Rf6 f2 Qfh5 f1Q Ndf7 Nc3 d8Q+ Kb5 Qd6 Na4 Ra8 Kb4 b8B B8a6 Bc7 Qf3 Rc8 Bd4 Re1 h1Q Re4 Qa3 Rg4 Qd5 Ke1 Be3 Bd4 Bg5 Rh4 Bd8 e7 Bb2 e8Q Be7 Qec6 Ba1 Be3 Bd4 Qb7+ Kc3 Bf4 Bg1 Qdf3+ Kd4 Qfb3 Be3 Bg4 Bg1 Bd2 B1e3 Bda5 Bg1 Bc3+ Ke3 Ba1+ Qd3 Rd1 c1B Rd2 Qg8 Rc2 Bd2+ Kd1 Kf2 Rc3 Qf8 Bf3 Qd4 Bc6 Qd5 Bd7 Kf1 Ne6 Bb6 Nc5 Kf2 Rg4 Bf1 Rb4 Bfc4 Qh1 Qh6 Qh3 Qh5+ Qg4 Qh3 Qh5 Qhf3+
1R2B2B/2K1Nr1b/5b2/Q1pQ4/R1qq2bQ/n3bRN1/2RNn1k1/qBN5 w - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 d4 e5 b4 c5 g7 a4 g6 a3 f6 h4 b6 a2 b5 h3 b7 h2 b6 f3 f7 f2 Ne2 Ne7 g8N Na6 b8R Bg7 f8R Bh6 b7 Bg4 g7 Qe8 Nf6 Bg5 g8B Bd2 Nh5 Qd8 Bb2 Ng6 Nhg3 Bg5 Bh7 Be3 Nd2 Nh4 Rf3 Ng2 Nc1 Rf8 Bb5 f1Q Be8 Nc7 Qa4 Rf6 Qa5 Qc4 Rhf1 h1B R1f2 Nb5 Bhg6 Ke7 d6+ Ke6 d7 Rf7 Re2 Qh4 d8Q Nf4 Qd5+ Kf6 Rf2 Kg5 Ngf1 Rf6 Nb1 Qa4 Qe6 Qh6 Rc8 Bd2 b8N Kh4 Nc6 Rf7 Ne7 Qc4 Ng3 Kh3 Rb8 Qg7 Rg2 Qf6 Ra3 Qh8 Qf6 Qf1 d5 Qc4+ Bd4 Bc3 d6 Bb2 d7 Bc3 Ke3 e4 d8Q Bb2 Rd2 Ne2 Qd5 Bhf3 Rad3 Kg2 Qh4 Bf5 Rc3 B3g4 Rdd3 Qg7 Nd2 Qh8 Rb1 Ba1 Rb4 Na3 Ra4 Bb2 Be5 a1Q Bg7 Qh7 Bh8 Qg7 Bh5 Bh7 Bg6 Qf6 Bf5 Ng1 Kf4 Qg7 Rf3 e3+ Qd4 e2 Ke4 e1B Bg6 Qh6 Ke5 Ne2 Kd6 Qe3 Bb1 Bf2 Qd5 Qee4 Rc2 Be3 Kc6 Bf6 Kc7 Qed4
BR4rk/2B2Qnr/3K1b2/Q2Rr3/NbB2r2/2q1RpNN/1Q3R2/2r2Nr1 w - - 0 1 illegal: No possible last move, all moves rejected
4Q1b1/3RQn1b/Nk1N1R2/3Kp2B/1N1rN3/3Rr3/qBpR1q2/Qq1B2n1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kf3 a5 Ke4 h5 b4 e5 d4 c5 b6 a4 d6 Kc6 f6 f3 d7 a3 d5+ Kb7 g7 h4 d6 h3 f7 f2 f8Q h2 b5 a2 g6 c4 Nc3 Qe8 d8R Rh3 d7 Rh6 Qe7 Rh5 Be2 f1B Bb2 Bh3 Kd5 Ra4 Nf3 Bf1 Nd4 Ra8 Ne4 c3 Nf5 Rh6 Bh5 Bd3 Rf1 Ra3 Nfd6+ Ka8 b7+ Ka7 Qc1 h1Q Rf6 Nc6 b8N Qf8 Na6 Kb6 Nb4 Nd4 Qe1 Rb3 Rd1 a1Q Rd2 Qa2 Qa1 Qhb1 Bd1 Rh2 Bh5 Nh6 g8Q Rg2 g7 Rg4 Qge6 Nf3 g8B Qf7 Qe8 Qf8 Q6e7 Ng1 Be6 Rf4 Beg4 c2 Bf3 Nf7 Bd1 Ka5 b6 Bca6 b7 Kb6 Ng5 Bh7 b8N Rc4 Nge4 Re3 Rd3 Bb5 N8a6 Bg8 Rc8 Bh7 d8R Bd7 Rd2 Bdf5 Rd3 Bg8 Rc7 Bfh7 Rd2 Qh6 Rdd7 Qf4 Rc5 Qf2 Ra5 Ne2 Ra3 Ng1 Rad3 Rd4#
R3rqR1/Kr4N1/5B1Q/N4p1B/pQRb1r2/1nn1nB1Q/1RN2kN1/7q w - - 0 1 legal: proof: f4 d5 c4 b5 cxd5 e6 g4 b4 f5 exf5 a3 Be7 axb4 Bc5 b5 Bf8 g5 f6 gxf6 g5 h3 g4 Kf2 g3+ Ke1 Be6 Ra3 Bf7 Ra6 Bh5 Ra1 Bg4 hxg4 Bd6 Ra5 Bb4 Ra1 Bf8 d4 Kf7 Kd2 Kg6 Kd3 a5 Kc4 h5 e4 c5 b4 h4 f7 g2 e5 h3 b6 h2 Kb5 c4 d6 c3 g5 c2 e6 Rh6 d5 Rh4 e7 Ra7 e8B Rh8 b7 Nd7 b8R Nb6 d7 Nc4 d6 Qf6 d8N Rc7 Ka6 Rc5 b5 Rc8 b6 Ne5 d7 Rh4 Ka7 Ba3 f8Q+ Qf7 b7 Ng4 Nf3 Kh5 g6 g1R g7 Qg6 Nc6 Ne7 g8R Ne3 d8N Kg4 Ne1+ Kg3 Bg2 Bd6 Qh6 Bb4 Na3 Rh5 Qg4+ Kf2 Qh3 Qf6 Ne6 Qf8 Bb2 c1N Ng7 Nb3 Bf3 Bc3 Nac2 Rf1 Ng2 N7d5 Bg6 Rb1 Rc1 Rh4 Bgh5 h1Q Ra2 a4 Na5 Rd8 Ra8 Re8 b8Q Rf4 Qb4 Be5 Bd4 Nc3 Rb2 Bc7 Bf6 Be5 Ra2 Rb2 Rd1 Rb1 Rd4 Rb2 Rc4 Bd4+ Qb6 Na1 Qc5 Rb6 Qb4 Nb3 Rb2 Rb7+
N5Qb/p2K1RRB/1p2BNnq/1Q1nnr1B/5bq1/3N2Q1/2Q2RB1/k6b w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 b4 Na6 b6 Bh6 b7 Bg7 b8N Bf6 b5 Bg7 b6 Bf8 b7 Nb4 Bb2 Nc6 Bg7 Na5 Bd4 Nc6 c4 e5 c5 d6 Na6 Kd7 Be3 Ke8 d4 Bd7 d5 Rc8 Bd2 Be6 Ba5 Nb4 Bb6 cxb6 Ke2 Bg7 Ke1 Rc6 dxc6 Bf8 Kd2 Ke7 Kc3 h5 b8Q d5 g4 e4 Kd4 h4 Ke5 d4 f4 h3 f6+ Kf7 f5 h2 c7 e3 c8B d3 g6+ Ke8 g7 Kf7 g5 d2 g6+ Ke8 f7+ Ke7 c6 e2 c7 e1B Nc3 Bb3 Nh3 Rh4 Nf4 Nc2 Nd3 Rg4 Bg2 Rb4 Rg1 h1N Be6 Qd7 c8B Qc6 Ra2 Rf4 Nc7 Bd5 Ne4 Nb4 Nf6 Bg3 Na8 Nf2 Qc2 d1Q Bcd7 Be4 Be8 Qg4 Rb2 Nd5 Ra2 Nh6 g8Q Bg7 f8R Bh8 g7 Nh3 Bh5 Bh2 Bf1 Bh1 Bg2 Qb5 Qbc7+ Qd7 Q7c4 Qc6 Qb5 Bg3 Qc1 Bh2 Rf2 Rf3+ Qf4 Qc1 Qg3 Nhf4 Qh7 Qd2 g8B+ Nf7+ Ke4 Kd6 Qg6 Qh3 Bh7 Ne5 Rf7 Qc1 Qg8 Nfg6 Qc8 Qh6 Qc2 Qc1 Ng4 Qh6 f6 Re3+ Kf5 Qh4 Qh3 Bf4 Qg3 Re4 Rf8 Re1 f7 Rf1 Nf6 Bd2 Re8 Bf4 Re7 Qg4+ Ke4 Ra1 f8Q Ra6 Qg8 Ra5 Qbb1 Rc5 Rf7 Kc6 Qf1 Kb5 Qfe2 Qh4 Kf5 Ka5 Qb2 Ka4 Qb5+ Ka3 Qd1 Nc6 Qc2 Nce5 Bd7 Q4g5+ Ke6 Qf5+ Kd6 Qg4 Be6 Qd1 Nb2+ Ka2 Nd3+ Ka1 Bf1 Nc4+ Kd7 Qg4 Rgg2 Nde7 Rg1 Rf5 Rgg2 Nd5 Rg1 Bc1 Bg2 Nce5+ Ke8 Nge7 Qf3 Qe3 Bf1 Qgd4 Rgg7 N7g6 Qg3 Qg4 Bg2 Qh6 Kd8 Bf4 Ke8 Nc4 Kd7 Nce5+
rRR5/1nRq4/2n2KNb/1N1p3k/NQRp2rB/Q1QB4/r1n1rB2/2N5 w - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 h5 Kd3 a5 Ke4 d5+ Ke5 e6 b4 h4 c4 a4 g7 Kf7 b6 a3 b5 h3 b7 a2 g6+ Ke7 g5 h2 b6 Nf6 g8N+ Ke8 g7 Kf7 c5 Nh7 g6+ Ke8 c6 Ng5 f6 Rh5 c7 Rh7 c8N Rh6 f7+ Kd7 Qf3 Ra7 Na3 Qe7 Nb5 Qd8 Qa3 Rh7 Be3 Na6 b8B Rh5 b7 Ra8 Ne2 Nc5 Rc1 a1R Rc4 Rh4 Nc1 Ra2 Nge7 Nf3+ Kf6 e5 g8R e4 g7 Ne5 Bd3 Nc6 Bf2 e3 Bbg3 e2 b8R Rg4 Bh4 e1N Rg1 Qc7 Ng6 h1R Rg3 Kd8 Nb6+ Qc8 Rh3 Nc2 Na4 Rh2 Re3 Rhg2 Re7 Nb7 Rc7 Rh2 Bfg3 Rd2 Bf2 Re2 Rh8 Re8 g8Q Bh6 Nf8 Re7 Qg5 Re1 Qd2 Re2 Qdc3 Nba5 Ra7 Nb7 Ng6+ Kd7 f8Q Qe8 Qfb4 Qc8 Rh7+ Ke8 Rc7 Qd8+ Ne7 Kf8 Rcc8 Qe8 Kf5 Kg7 Ng6 Kh7 Kf6 Qd7 Bf5 Be3 Be4 Kh6 Bf5 Kh5 Bd3 Nd6 Rab7 Bh6 Rbc7 Nb7
R2Bq2r/4nb1p/2N1B1nn/2qNp1k1/1B6/BQQ4R/1q2RRq1/2K1N1Q1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 gxf5 d5 e4 dxe4 f4 g4 h4 Bg7 f6 Bh6 f5 Bg5 hxg5 Ra6 Bh3 Rd6 Bf1 Rd5 cxd5 Bb7 Ne2 Ba6 Ng1 Bc8 d4 Kf7 Kd2 c5 b4 e5 g6+ Ke8 d6 a4 b6 c4 d5 a3 b5 a2 b7 g3 b6 g2 f7+ Kf8 d7 Kg7 f8B+ Kf6 g7 Qe8 d8Q+ Qe7 d6 Kg5 f6 Qd7 f7+ Kg6 Nf3 g1Q Nc3 Qdg4 d7 Qf5 Qb3 Nh6 Bh3 Qfg4 Bb4 Qc5 f8R Nc6 b8R Ne7 Ne1 Kg5 b7 Qg2+ Rf2 e3+ Kd1 Qcc6 Bca3 e2+ Kc1 Qc5 Nd5 c3 Qc7 c2 d8B Be6 Qa5 Bf7 Be6 Qc6 Ra8 Qe8 Rb1 a1Q b8N Qa2 g8Q+ Bg6 Nd3 e1N Rh3 Nf3 Rb2 Nh4 Qc7 Qb5 Ne1 Qe8 Qf7 Bh5 Nc6 Bg6 Qff3 Bf7 Qb6 Ng6 Re2 Rg8 Qg1 Rf8 Qfc3 Rh8 Kd2 c1Q+ Kd3 Qe3+ Kc2 Qd4 Kc1 Qc4 Rf2 Qc5 Rbe2 Qb2+
kBR1B1b1/p2R3b/Nnr2n2/4KB2/3pp2R/QQ4r1/2N3Nq/bB2RQ2 w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 b5 e4 f5 exf5 d5 a4 Nd7 axb5 Nb8 c4 cxd4 cxd5 Ba6 Qe2 Bb7 Qd1 Bc8 Kd2 Kd7 Kd3 Kc7 Ke4 Kb7 b4 h5 f4 e5 g4 h4 f6 h3 f7 h2 d6 Nc6 d7 Rh4 b6 Nge7 b5 Rh5 f5 Rh7 g6 Rh6 f6 Rh4 g7 Qc7 d8R Na5 g8B Kb8 b7 Nd5 Bd3 Ba3 f8R Rh6 g5 Nc4 g6 Ndb6 f7 Rh3 g7 Qe7 Nf3 Bb4 Bf4 Qc5 Nh4 Bc3 Na3 Qc7 Qf1 Nd7 Nc2 Na5 Ng2 Rh5 Bh7 Bb4 g8B Qb6 Re1 Bc3 Bf5 Qc7 Bgh7 Nc4 Bhg6 Rh4 Rh8 Bb2 f8Q Rh3 Be8 Rg3 Qa3 Ba1 Kd5 Ncb6+ Ke6 Nf6+ Rd7 Qc3 Rh4 Qd2 Kd6 e4 Ke5 Qe2 Bc4 Qd2 Ba2 Qf2 Rg1 h1B Bb1 Qe2 Nge3 Bf3 Ng2 Qf2 Rgh1 Qd2 Rh8 Qe2 R1h4 Bh5 Bg4 Qe3 Rdh7 Nbd7+ Kf5+ Ne5+ Bd7 Kc7 b8N Kb7 b6 Qg1 Na6 Qh2 Ke6 Bg6 Bf5 Nc4 Bd6 Nb2 Ke5 Na4 Rd8 Rb8 Be8+ Ka8 Re7 Be6 Rc8 Bg8 Bc7 Kb7 Rf7 B6h7 Rd7 Kc6 b7 Ra8 Rcd8 Rc8 Bd6 Rc7 b8Q Rc8 Qbb2 Nb6 Qbb3 Rc7 Rc8 Kb7 Rdd8 Rcc3 Bb8 Rc6 Rd7+ Ka8
2nK1Nq1/knR2p2/1q2p1N1/bB3QR1/1Q3Q1r/5R1B/1Np1B2b/1bB4Q w - - 0 1 illegal: No possible last move, all moves rejected
4NkBr/R2n1nqQ/5p1B/4N2Q/2QB1Qbp/p1K1Nr1R/3n1Rn1/7B w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 f6 exf6 axb3 Ne7 b4 Ng8 b5 Bd6 Qc2 Bc5 Qd1 Bf8 g4 Bf5 g5 Bc8 h4 Qd6 g6 Qd8 gxf7+ Kd7 Nc3 g5 Nb1 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Ke7 Ra2 Kd6 Ra1 Kd7 f8Q h5 d4 a5 Kd2 c5 e4 c4 b4 h4 b6 a4 b7 g3 g6 g2 g7 Ra5 d6 Rb5 d5 Qe8 e5 Qh5 Nc3 Rc5 b5 Qg6 b6 Na6 b8Q Bb7 Nf3 g1N Rh3 Ne7 g8B Nc6 Qg7+ Qf7 Qc7+ Ke8 e6 Rb5 d7+ Ke7 d8B+ Ke8 e7 Nd4 d6 Bc8 b7 Rhh5 b8Q Bg4 Nd5 Nde2 Ne5 Rh8 Bg2 Nc5 Ne3 Nd7 Bh1 Nf4 Kc3 Ng2 Qh7 Nf3 Ra2 a3 Rf2 Nd2 Qf3 Be6 Qfh5 Bg4 Qc6 Rd5 Qcb5 Rc5 Bb6+ Rc8 Bd4 Qg6 Kb4 c3 Qc4 c2 Kc3 Rd8 Qb7 Rb8 Qe4 Rb2 Qf4 Rb5 Nf3 Rf5 Ne5 Qf7 Qfh6 Rf3 Qf4 Qg6 Qg3 Ne1 Nd3 Ng2 Nf1 Nb3 Bh6 c1N Qf4 Ne5 Ne3 Nf7 Ne5 Qg7 Nd3 Kd7 e8N Nd2 Ne5+ Kd8 d7 Ke7 d8R Nd3 Ra8 Kf8 Ra4 Nc5 Ra7 Nd7
2rRQ2R/N2Q4/RpQK3p/Bb1Br1p1/1n3nB1/3q1N2/n5k1/2N2RNn w - - 0 1 legal: proof: g4 d5 f4 a5 c4 f5 gxf5 g6 cxd5 Bg7 h4 Be5 e4 Na6 b4 axb4 h5 Bd6 h6 Kd7 e5 Qf8 f6 Ke8 f5 Qg7 hxg7 Nb8 f7+ Kd7 Nf3 Bc5 Ng1 Be3 Rh5 Bg5 Rh1 Bf6 exf6 Ra5 Bd3 Ra3 Bf1 Ra8 Rh3 Kd6 Kf2 Ke5 Kg3 Ke4 f8R c5 d4 e5 a4 b3 a5 b6 d6 b2 d7 c4 d8N c3 d5 c2 a6 Be6 f7 Bd7 a7 Bb5 d6 Ba4 f6 Nc6 d7 Rb8 a8Q Nh6 g8B Bb5 Bd2 c1Q Ra6 Qc5 Be2 Ng4 Ba5 Qd6 Nd2+ Ke3 Nb3 b1N Nc1 Nb4 Nc6 Rc8 d8R Qd7 Na7 e4 Qc6 Nf2 Bg4 Nc3 Rh6 Qf5 Qdd7 Nca2 Rh5 Qd5 Rf5 h6 Rf4 Nh3 Rf1 Qd3 Rfe8 Rh7 f8N Nf2 Ne6 Re7 f7 g5 Nd4 Re5 f8Q Nh1+ Kg2 Kd2 Bc4 e3 Kf3 Re6 Bd5 e2+ Kg2 Ke3 Qff7 Nf2 Rh8 e1N+ Kg3 Ng2 Qfe8 Qd2 Bh3 Nh1+ Kg4 Qd3 Ndf3 Re4+ Kf5 Nf4 Bg4 Re5+ Kf6 Ne6 Ke7 Kf4 Rh7 Kg3 Rh8 Nf4+ Kd6 Kg2
R1KN1Q1b/Q2QB3/n2r4/1p1B1Rpq/rprR3r/1B1r4/7N/R1N1N1k1 w - - 0 1 legal: proof: f4 a5 e4 g5 c4 d5 cxd5 f5 b4 axb4 g4 Bd7 h4 Bh6 gxf5 Bg7 f6 Bh3 f7+ Kd7 h5 Bf5 e5 Bg6 hxg6 Bf8 f5 Na6 Rh3 Nc5 Rh6 Ne4 Rh1 Nef6 exf6 Ra3 Qb3 Ra7 Qd1 Ra8 Kf2 Kd6 Ke3 Kc5 Ke4 e5 a4 h5 d4+ Kd6 g7 c5 a5 h4 a6 b6 a7 h3 Bc4 h2 Nc3 Qe8 Na2 Qb5 Nf3 Rh6 Qa4 Rh8 Bb3 Be7 f8N Qa5 f7 Bd8 f6 Rh6 Kf5 e4 Ne6 e3 f8R e2 f7 e1R Ba3 Qa6 Nc1 Qe2 Nf4 Bf6 Ng2 Rd1 Nge1 Rd3 Rg1 h1R Rg4 Be5 Nh2 Nf6 g8B Nd7 Re4 Bh8 Rf4 Rc8 a8R Qh5 Qa7 Nb8 Rh4 Rc7 Re4 Na6 Rg4 Kd7 d6 Kc6 d7 Rd6 d8Q Re7 Rf4 Re4 d5+ Kb5 Qdc7 Rc4 Rfd8 Rcd4 f8Q c4 Qd7+ Kc5 Bb2 c3 Be6 c2 Bc3 Rc4 Bf6 Rf3 Be7 Rd3 Rf2 Kd4 Bg8 Rg6 d6 Ke3 Bd5 Rh4 Rf4 Rh6 Rd4 Kf2 Rdc8 b5 Rc5 Bf6 Ke6 Kg1 Qdc8 Bg7+ Kd7 Bh8 Qcd8 Rg6 Kc8 Re6 d7 Rd6 Ng4 R1h3 Nh2 Rhf3 Qdc7 Rf2 d8N Rfd2 Na2 c1R Qd7 Rc4 Nc1 Rf2 Bc6 Ra2 Rf5 Nc5 Bg2 Ra4 Bd5 Na6+
1r4Q1/b3N1R1/rk3KRB/1rNQ1n2/1QB1b1r1/3r1nNB/1bN1n3/Q1R2q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 b4 h5 f4 a5 d4 h3 b6+ Kb7 b5 c4 d6 a4 g5 c3 d5 h4 g6 c2 d7 h2 g7 a3 d6 a2 f6 h3 Kf5 e4 f7 e3 Na3 Nc6 Ne2 Ra5 Ng3 e2 Rg1 Be7 f8Q Nf6 g8B h1N Bc4 e1B Qg8 h2 Bh3 Nd5 Rg2 Ka8 b7+ Ka7 b8N Bf2 Na6 Nc3 Nc5 Ne5 Qdd5 Bf6 b6+ Kb8 b7 Ka7 b8N Ne2 Qd4 Bb7 Nc6+ Kb6 Ne7 Qf8 d8R Nf3 d7 Be4+ Ke6 Be5 f5 Rb5 Bh6 c1R f6 Rc3 f7 Rd3 Rc1 a1R Nc2 Ra6 Qa1 Bb2 Rc8 Bfd4 Rc7 Be3 d8Q Bed4 Ngf5 Nhg3 Qd5 h1R Ra7 Rg1 Rd7 Nh5 Rg6 Rg4 Rc7 Nhg3 Ra7 Nf1 Ng3 Ne3 Rc7 Nf5 Rd7 Qb8 f8Q Qf4 Ra7 Ne5 Kf6 Qf1 Nc6 Bf2 Rag7 Be3 Ne7 Nf3+ Qd4 Bf4 Qd5 Bb8 Qff7 Rd8 Qg8 Ba7 Qc3 Rb8 Qcd4 Rd1 Qc3 Rd4 Qb4 Rd3+
6R1/BbRK1Qr1/1NN1nr2/Q1BN1rk1/n1R1B3/1n4qn/QbR5/n2q1Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Kg4 c5 f4 e5 d4 a5 b4 a4 d6 h6 b6 e4 b7 e3 b5 h3 d7 c4 b6 c3 d5 a3 d6 c2 Nf3 h2 Nc3 a2 Nd5+ Kf7 f6 Kg6 f7 e2 f5+ Kh7 f6 Kg6 Nd4 e1N Qe2 Ra7 Ba3 c1R Bc5 Rb1 Nc6 Rb5 Rc1 a1N Qa2 Qc7 Rc4 Na6 b8B Rb1 b7 Ne7 Bd3+ Nf5 d8R Nec2 d7 Rf1 Be4 Bg7 f8Q Nb3 f7 Nca1 g3 Rf3 Rhc1 h1N R1c2 Bb2 Qe8 Rh7 f8Q+ Rf7 Qee7 Qe5 Re8 Qg7 d8Q Rf6 Qda5 Rf1 Qe6 Nf2+ Kf4 h5 g4 h4 g5 h3 Re7 h2 Rc7 Kh5 g6 h1Q Qef7 Nfd4+ Ke5 Ne6+ Kd6 Kg5 Ke7 Qg8 g7 Nh3 Ke8 R1f5 Ke7 Ra8 Bba7 Qd1 b8N Bb7 Nd7 Rc8 N7b6 Rb8 Bb4 Nac5 Kd6 Na4 Kd7 Rc8 Bc5 Re8 Qd6 Rf8 Qh2 Rb8 Qh1 Rc8 Qf1 Rf8 Qe8 R8f7+ Qe7 Qb8 g8R+ Rg7 Qf7 Qh5 Rcc8 Qg3 Rc7 Qd1
1B1rqqN1/Q3nNb1/b3QB1b/NRQr1n1R/r7/2K4Q/k5BB/r1r1R3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 Kd2 a5 b6 c5 g5 e4 g6 h3 b5 a4 g7 h4 b7 c4 f6 a3 f5 e3+ Kc3 h2 f7 a2 f6 e2 b6 e1R Nh3 Be6 Qg4 Na6 b8Q+ Nc7 b7 Re5 Bg2 Ra7 Ng5 h3 Bf4 Rh6 Na3 Rh8 Rae1 Ne7 g8N Ra4 Qa7 a1R b8B Bg7 f8R Nf5 f7 Bc8 Re8 Qe7 f8Q Ba6 Qf7 Qe6 Rb1 Qe7 Rb5 Qf8 Re1 h1Q Bh2 Qf1 Qfh5 Qe2 Nf7+ Kd7 d6 Rd5 Re5 Kc6 d7 Qe3+ Kc2 c3 d8B Qe2+ Kb3 c2 Nc4 c1B Kc3 Bch6 Bf6 Qe4 Bf4 h2 Qhh3 h1R Bh2 Rd8 Red5 Qee8 Rde5+ Rd5 Qe2 Ne7 Rh5 Ne6 Qc2 Nd8 Qe2 Nb7 Qee6+ Nd6 Rbb1 Rb4 Na5+ Kb5 Rb3 Ka4 Qc5 Rg5 d5 Ndf5 d6 Rh4 Rb4+ Ka3 d7 Rg1 Rb3+ Ka2 d8Q Ra4 Qdd7 Rh1 Qda7 Rf1 Reb1 Rd1 Rb5+ Rd5 Be4 Rg1 Bg2 Rf1 Re1 Rh1 Re3 Rhb1 Re1 Rd1 Be4 Rdc1+ Bc2 Qc6 Qhe3 Bf4 Qh3 Qfc8 Ngh6 Rf8 Ng8 Bfh6 Bg1 Rd8 Bgh2 Rd7 Rg1 Qf8 Re1 Rd1 Be4 Rd8 Bh1 Qce8 Bg2 Rdc1+
r3Q2N/NR1b1Qqn/r2n4/1B1RBN1n/1q2kb2/Q3B3/N3R2K/2n2qQn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 Kg2 a5 d4 e5 g5 e4 b6 h3+ Kh2 a4 f6 c4 f5 e3 b7 h4 g6 e2 b5 e1N g7 c3 f7 a3 b6 a2 f6 c2 Nc3 Bf5 Nge2 Qe8 Be3 c1N Rb1 a1N Ng3 Ncd3 Na2 Nc6 b8N Qe7 b7 Nf2 Bb5 Na5 Nc6 Ned3 Re1 Nc4 Re2 Nf4 Na7 Bd7 Qg1 Nh1 Rb3 Nh5 Nf5+ Kc7 Rb4 Rh6 b8B+ Kb6 d6 Nb3 d5+ Kb7 Bf2 Nc1 Be3 Qe4 Bc7 Be7 f8R Bd8 f7 Bg5 Rc8 Ngf6 f8Q Nh7 g8Q Bf4+ Q8g3 Qd4 Qf7 Qg7 Re8 Rg6 Re4 Rh6 Rd4 Rf6 Bb8 Kb6 Bc7+ Kc5 Rb3 Be6 d7 Nd6 d8Q Bd7 Qde8 Re6 Bc6 Rf6 Rdd2+ Kc4 Rb5 Rg6 Rdb2 Kd3 Ra5 Re6 Rb7 Ke4 Ba4 Nc4 Be5 Ra6 Bb5 Nd6 Qd1 Qh8 Qb3 Qf8 Qa3 Qg7 Kg1 h2+ Kg2 Nc8 d6 h3+ Kf1 Rb6 Ba6 Bc6 d7 Nf2 Rd5 Nd6 Bb5 Ra6 Qg1 h1Q B3d4+ Be3 Bb6 Qf3 d8N Bd7 Ne6 Qfg3 Nf4 h2 Ng6 h1Q Nh8 Qhf3 Red2 Bf4 Be3 Qh2 Rb2 Nh1+ Rf2 Qfg3 Rb2 Qd2 Rc2 Q3g5 Rb2 Qb4 Re2 Bg3 Kg2 Qf4 Kh3 Qf1+ Rg2 Bh4 Kh2 Bg5 Re2 Bf4+
2Qq1b1q/1NB2n1b/QB1Q3N/4RR2/4nr1r/1BQ4r/1N1b1RRq/rk1K4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 g5 a5 b6 c5 b7 e4 f6 a4 f7 a3 b5 c4 b6 c3 g6 a2 f5 e3 f6 c2 g7 e2 Nc3 h3 Bf4+ Kd7 d6 Ke6 d5+ Kf5 d7 c1R d6 h4 Nf3 h2 Na4 Ke4 Rg1 h1Q Nb2 h3 Nd4 h2 Nf5 Qf3 Rg2 h1R Nh6 Ne7 g8Q Rb1 Qg6+ Nf5 Qc1 Nc6 b8Q Rh4 b7 Qe8 d8N Qe5 d7 Qd3 Qd6 Ra4 b8Q Ba6 Be3 Qh2 Nb7 Ne5 d8B Qd4 Qbc7 Bd3 Qc8 Rh3 Kd2 e1B+ Kd1 Bd2 Bc7 Rc4 Qa6 Qd8 Beb6 Rb4 Qg3 Nd6 Be2 Rd4 Bg4 Rh4 Be6 Rf4 Qg6+ Ke3 Bb3 Ne4 Ng8 Rh3 Nh6 Ba3 f8R Nf7 Re8 Bf8 Re5 Bc4 Na5 Be6 Nb7 Bf5 Qg4 Bg6 Qgd7 Bh7 Qd6 Rfh4 Nc4+ Kd3 Rf2 Rb2 Rb1 Rc2 Rb2 a1Q Ra2 Rb2 Rg2 Rb1 Raa5 Nh8 f7 Qc3 Rab5 Ra1 Rf5 Bg7 f8R Nf7 Rbe5 Rf4 Rg8 Bf8 Rf2 Rhh4 Re7 Rd5 Rgg2 Qh8 Qb1+ Kc3 Nb2 Rd3 Ree5 Rg3 Bc2 Rgh3 Qc1 Ra5 Bb1+ Kb3 Bc2+ Ka2 Ba4 Rb3 Qcc5 Rbh3 Qc3 Kb1 Bb3 Ra1
BbQ2QQb/k1n1Rr1R/4N1qr/3N1n1R/3NB1RQ/3K3n/3q2bq/B4n2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 f4 h5 d4 c5 b4 Kc7 g4 Kb7 f6 a5 f5 e5 d6 a4 f7 c4 d7 h3 g5 c3 d5 h2 f6 h4 d6 a3 b6 c2 b5 h3 g6 e4 g7 e3 Nc3 a2 Qd4 Rh5 Nd5 Qe8 d8R Ra4 d7 Ra8 Nf3 Bb4 f8R Nh6 g8B Qe5 f7 Na6 Rde8 Bd6 Bh7 Ra7 Bb2 c1Q Rg8 Nf5 f8Q Qc6 Bg2 Nc7 Rg4 Rh6 Kd3 e2 Re7 e1Q d8N+ Ka8 Qb4 Bb7 Nd4 Qec1 Rb1 a1B N8e6+ Qe8 Qe1 Qcf4 Qh4 Qd2+ Kc4 Bc6 b7+ Kb8 Rbe1 Qg3 Re5 Qgf2 Rg1 h1N Rb1 Nhg3 Rh1 h2 Be4 Ng7 Rh5 Nf1 Bf3 Be5 Bhe4 Nf5 Qg8 Bh8 Bc3 Bb2 Qf8 Ba3 Ba1 Bd6 Bg2 Ra2 Qg8 Ka7 Qf8 Qg6 b6+ Ka6 b8Q Bf4 Rg1 h1N b7 Bh2 Qbd8 Ka7 Qc8 Bg3 Bgf3 Qh2 Qg8 Nf2 Rh1 Nh3 Bg2 Ka6 b8Q+ Bb7 Qcf8 Bf4 Qbc8 Ka7 Bgf3 Rb2 Bg2 Ba8 Bgf3 Rb7 Bg2 Na6 Bgf3 Bb8 Bg2 Nc7 Bgf3 Qa2+ Kd3 Qaf2 Bg2 Qd2+ Kc4 Rb3 Nb6 Rh7 Bb7 Qhf4 Rhg5 Rf3 Qe1 Nf2 Rh6 Rf7 Rh7 Rh3 Bgf3 Rh6 Rh5 Ne4 Qh4 Qdh2 Kd3 Ng5 Bbd5 Bc6 Bg2 Nh3 Bdf3 Ba4 Ba8 Bd1 Bgb7 Bf3 Be4 Bg2 Nd5 Qd2+
r2Qb1nR/3Q4/1nK5/2nQ2qN/2R1r3/bN2kNBQ/6b1/NBn1qBRq w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 a5 g4 e5 b4+ Kb6 d4 c5 d6 h5 Kd5 h3 g5 c4 f6 c3 g6 h2 g7 a4 f7 h4 d7 e4 f5 e3 f6 h3 Nd2 e2 Ngf3 e1N Rg1 h1Q Nb3 c2 Bf4 c1N Bg3 Ncd3 Rc1 a3 Na1 h2 Rc4 Bd6 f8R a2 f7 Qc7 d8Q Nc5 Qd7 Nh6 g8B Nc2 Bh7 Na3 Bb1 Rh7 Rh8 Ra5 f8Q Qd8 Qff5 Nb3 Qh3 Ra8 Qd2 Bf8 Qd1 Re7 Kd6 Ng8 d5 Bb7 Qd2 Ka7 b6+ Ka6 Qdg2 Bc6 b7 Kb6 b5 Na6 b8N Nac5 Na6 Nc1 Qd2 Bh6 Qg5 Re4 Qgf5 Qg5 Qfe6 Ka5 b6 Kb5 b7 Bf8+ Kc7 Be7 b8N Bf8 d6 Be7 Nb3 a1Q Nb4 Qc3 Qd5 Qe1 Nc2 Bf8 Q7e6 Be8 d7 Be7 d8Q Bf8 Ra4+ Nc4 Nca1 Be7 Nd7 Bf8 Bg2 Nb6 Nf6 Be7 Nh5 Bf8 Ra5+ Kb4 Ra4+ Kc3 Q5d7 Be7 Kc6 Bd6 Ba2 Kd3 Bb1+ Ke3 Rc4 Nb7 Rd4 Ba3 Bf1 Nc5 Qc4 Qg2 Qd5 h1B Rb4 Qh2 Ra4 Bg2 Rc4 Qh1
R2RN1N1/R2B4/1qn2r2/2rBQ3/BBbn2b1/r2QbRQ1/k1q1N3/3Kbq2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 b4 a5 g4 c5 b6 h5 b7 f5 e5+ Kc7 b5 Kb6 e6 a4 d6 Ka5 g6 Kb4 d7 c4 g5 h4 g7 h3 e7 h2 e8B c3 d5 c2 d6 Kb3 g6 f3 b6 f4 Ba3 Ra6 Ne2 Nc6 b8Q Rh5 b7 Nh6 g8N Qb6 d8R Bg4 g7 Nf5 d7 Bb4+ Nbc3 Nfd4 Bh3 Rc5 Qd3 c1B Kd1 f2 Qe5 f1B b8Q f3 Nb5+ Bc3 Rc8 f2 d8R Be3 Bb4 a3 Nc7 a2 Rg1 h1Q Rg3 Qe4 Rf3 Qg6 Bd7 Kb2 Ne8 Be1 Qg3 Ra3 Qbe5 Qf5 Ra8 Ra6 Rc1 a1R Ra7 R1a3 Ra1 Rb3 Ra5 Ra3 Ra4 Ka2 Ra5 Ne7 Ba4 Nec6 Raa8 Ra7 Ra6 Rf7 R6a7 Rf6 Rf4 Qe4 Rf3 Be6 Bg4 Bh3 Bf5 Bc4 Bd7 f1Q Nh6 Rb3 g8B Ra3 Bd5 Bg4 Ng8 Qg6 Rf5 Qh7 Rf3 Qh2 Ng1 Qb2 Ne2 Qc2+
1n2rb2/1QB3Nk/BN2RnrN/n4qqQ/1qb2Bb1/5BKQ/R3bR2/2R5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kg7 Kf2 c5 g4 e5 d4 h5 f6+ Kh7 f5 a5 f7 a4 d6 h3 f6 c4 d5 h2 g5 a3 d7 a2 d6 h4 b6 c3 b7 h3 b5 c2 b6 e4 Ne2 e3+ Kg3 Ra4 g6+ Kh6 g7 Rc4 Nd2 Ne7 g8B Qc7 d8N Qc6 d7 Ng6 Nf4 e2 Nh5 e1N Ng7 Ng2 Qg4 Rd4 Ba6 N6f4 Nc4 Qe4 Bd2 Qf5 Rhc1 h1B Qe2 Nc6 b8Q h2 b7 Rd6 Nb6 Ne3 Qd3 Re6 Qe5 Nc4 b8Q Bf3 Qb7 h1B Qf1 Kg6 Qh3 Nd5 Bf4 N4a5 Qe2 Nb8 Qd1 Bb4 f8R Be2 f7 Nf6 Re8 Bd5 f8R Bdc4 Nf7 Bc5 d8B Bd7 Rcb1 c1Q Nh6 Bc8 Bf7+ Kh7 Bh5 Qb2 Re7 Qb4 Rc1 Rg8 Rff7 Re8 Bf3 Rc6 Re3 Bf8 Re6 Rd6 Bc7 Rc6 Rab1 a1Q Rb2 Qab1 Ra2 Qg5+ Kh2 Qbf5 Qh1 Ng4+ Kg3 Rd6 Qh5 Bd7 Q1h3 Bc8 Re4 Rg6 Re6 Nf6+ Bg4 Qfc5 Rd6 Qgd5 Bd2 Ng8 Rf2 Qg5 Bf4 Nf6 Rc6 Bf5 Re6 Qe5 Kh2 Qeb5 Bf3 Bg4 Kg3 Qbf5
Qr2R3/1Bbn4/2r1bRBq/1Q4R1/3B3K/RnNb3Q/1rBk4/N1qN1r1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 Kd6 b4 Ke5 d4+ Ke4 g6 f5 g7 a5 d6 h5 b6 c5 d7 h4 b5 a4 d5 h3 d6 h2 b7 a3 b6 c4 g5 c3 g6 f3 Kg3 a2 Qd3+ Ke5 e4 f2 Bb2 Be7 Nh3 Qf8 d8N Bg5 d7 Rh5 Ne6 Ra6 d8R Bd7 Nc5 Qe8 Bg2 f1B Nf2 Qe6 Nb3 Ra3 Nd1 Nc6 Re8 Nf6 g8R Rh8 g7 Nd4 Qe3 c2 Nbc3 Bd3 Rf1 Bh6 Kh4 c1R Qh3 h1N Bf3 Kf4 b8Q+ Qd6 e5 Be6 b7 Nd7 Qa8 Rb1 b8Q Ra6 Qb5 Rc6 Ba3 Rb2 Bc5 Ne2 Bd4 Nc1 Rb1 Qf8 Na1 Nb3 Rc1 Qd6 Rc2 Qf8 Rg2 Qf6+ Rg5 Qg6 Rgf8 Qf6 g8B Bg7+ Bh7 Qh6+ Rh5 Rg8 Rf6 Bf8 Rc8 Bd6 Re8 Bc7 Rg1 Rh8 Rg3 Rf8 Re7 Rb8 Re8 Ra6 Bb7 Rc6 Nc2 a1Q Bg6 Qc1 Na1 Bd5 e6 B5c4 e7 Bd5 Rg5 Be6 Qh2+ Kf3 Bh7 f4 Bg6 Bf1 Bc2 Bd3 Qh3+ Ng3 Na4 Ke2 Nac3+ Ke1 Bf2+ Kd2 Bd4 Nh1 Rg3 Qf8 Rhg5 f3 R3g4 f2 Na4 f1R Rg3 Na5 Rgf3 Be2 Ra3 Bd3 Nac3 Qg8 Rc8 Nb3 e8B Qg7 Bg6 Qf8 Re8 Qh6+
B1r2kqR/1nBrNN2/rBn1bB1N/3Q2Q1/Qb1qb3/n6R/5r1R/1K5N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 g4 a5 d4 c5 Kd2 a4 Kc2 h3 g5 h2 f6 e4 f7+ Ke7 d6+ Ke6 b6 c4 d7 Ke7 g6 e3 f5 c3 g7 e2 d5 e1Q f6+ Kd6 b7 a3 b5 h4 b6 h3 Bg5 a2 Bg2 Rh4 Ne2 Ra3 Ng3 Be7 f8R Qe5 f7 Ra7 Bf6 Nc6 b8Q+ Rc7 b7 Na5 Qa7 Qf4 b8B Qe8 d8N Nb7 Qa4 Rh6 Qg4 Qd4 Qg5 Bg4 Kc1 c2 Nc3 Bd7 Ba7 Bc8 Bb6 Be6 Rb1 a1N Rb3 Rg6 Kb2 c1R Be4 Nh6 g8N Ng4 Nh6 Nc2 Rh8 Ne5 f8B Nc6 Ndf7+ Kd7 Ka2 Bb4 Bd6 Qg8 Ra3 Rc8 Bdc7 Ke8 Rb3 Rg7 d6 Rf1 d7+ Kf8 Nd5 Rf2 Ne7 Rg6 Kb1 Rg7 Re1 h1B Re2 h2 Bd5 Be4 Nh1 Re8 d8Q Rg6 Qd6 Rc8 Rh3 Rg7 Qdf4 Rh7 Qd2 Rg7 Ng3 h1R+ Qd1 Rg1 Nh1 Rg3 Qdd2 Ra3 Qd1 Rff3 Reh2 Rf2 Qb5 Ra6 Qa4 Bd3 Bf3 Be4 Qd3 Rh7 Qdb3 Rg7 Qbd5 B4f5 Qda5 Na7 Nc6 Nc5 Nd6 Rd7 Ne7 Bd3 Bb7 Nc6 Ndf7 Be4 Ba8 Nb7 Qad5 Na3+
1n6/2B1k3/2B4n/Q3r1N1/n1R2qB1/Nr1r2b1/qnbQK1B1/rR2RNQQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 c5 b4 a5 g4 f5 e4 h5 g6 f3 d6 c4 d5 f2+ Ke2 f4 b6 a4 d7+ Ke7 g7 c3 d6+ Ke6 e5 h4 b5 a3 g5 a2 b7 c2 b6 h3 g6 h2 Bg2 f1N Qd2 Qg5 d8N+ Kd7 e6+ Ke8 e7 Ra4 Na3 Rb4 Rb1 a1R Nf7 Qa5 Nf3 Rh3 N7g5 Ne3 Re1 h1Q Nh2 Bf5 Nf1 Nh6 g8B Qh2 g7 Nd5 Be6 Rd3 g8Q Rbb3 Bb2 c1R Be5 Rc5 Qh7 Bg6 Bg4 Qb4 Rbc1 Rb5 Rc4 Nc3+ Kf2 Na4 Ke2 Bf5 Qg7 Kd7 e8B+ Kd8 d7 Bd6 Qg8 Ke7 Qd5 Bc7 Qd4 Qd6 Qg1 Qd4 Qh1 Qb2 Qg1 Qa2 d8Q+ Kf8 Qc8 Ke7 Bc6 Be4 Qf5 f3+ Kf2 Qf4 Qh1 Nd7 b8Q Bd6 Qa8 Nb8 b7 Rc5 Qa5 Rcd5 Bd4 Re5 Qg6 Bf5 Bb6 Bc7 Ne3 Bd6 Kf1 f2 Ke2 f1N Bc7 Be4 Qgh5 Bf5 Qg1 Bh7 Qhh1 Be4 Qc2 Nd2 Nf1 Bh7+ Re4 Nc4 Qcd2 Na6 b8R Ncb2 Rb4 Nb8 Rc4 Bc5 Rcc1 Bf2 Rb1 Bg3 Ne3 Rd6 Rc4 Be4 Nf1 Bc2+ Bge4 Rc5 Bef3 Rdd3 Bg2 Re5+
R1BrqRr1/N3bB1q/1Q1Rqn2/4BN1N/2nK2k1/Q2N4/1r4b1/q1QR1r2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 g4 a5 b4 h5 d4 c5 f4 c4 g5 c3 d6 e4 f6 Ke6 b6 Kf5 b7 c2 f7 a4 d7 h3 b5 h4 g6 h2 b6 a3 g7 h3 d5 a2 d6 Na6 b8Q Qf6 d8N Qe5 d7 Nb4 b7 Qc7 Ba6 Nf6 g8B Rh7 Nc6 Bg7 f8Q Qd6 d8R Rh4 Nd2 Qd7 Nf1 Qe7 Ne2 Qe6 Ne5 Rh8 Rd6 Nc6 Bf7 Na5 Kd4 e3 Nd3 Rg8 Nfg3+ Kg4 f5 Nc4 Nef4+ e2 Bb2 c1R Nfh5 Rb1 Qc1 e1Q Rf1 Q1e2 Rd1 h1Q Qa7 h2 b8N Qee1 Nc6 Bb7 Qb6 Rd8 Na7 Bg2 Bc8 Qe8 Qe7 Bf8 Qee3 Be7 Bc3 Nd7 f6 Rb2 Nf5 Qe2 Qe5 Qee1 Qea5 Qe6 Qa3 Ba8 Bg6 Bg2 f7 Nf6 f8R Qe2 Rb1 a1Q Bf7 Qe6 Qab3 Qaa4 Ra1 Qad7 Ra3 Qhe1 Ra6 h1R Qa3 Rg1 Bd2 Rf1 Bf4 Qa4 Be5 Qc2 Nc6 Qb1 Ra8 Qh4 Na7 Qa1 Nhg7 Qh8 Nh5 Qh7
2NK1N2/3q1k2/3Q1N2/3qB2r/qR1bBR1q/Bn5b/nRr1RQQ1/N2nn3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 c5 Kd3 a5 Ke4 h5 Ke5 h3 f4 h4 b4 c4 g4 e6 d4 c3 f6 h2 f7+ Ke7 b6 c2 b5 h3 f5 a4 d6+ Kd7 f6 a3 d5 a2 b7 Rh6 b6 Rg6 g5 Ra4 Qf3 Qe8 Nd2 Rh6 g6 Ne7 g7 Ng8 Ne4 Ra7 Bd3 Ra6 Rb1 a1N Ne2 Ra8 Rb2 Ra4 Rf1 h1Q Nd4 h2 Qg2 Ra2 Nb3 Ne7 g8N Ra8 Rf4 Na6 b8B Nb4 b7 Nf5 Ne7 Bg7 f8Q Ra2 Qf7 Kd8 d7 Ne3 Kd6 e5 Qf8 Rh5 f7 Qd1 Nf6 h1Q Be4 Qh4 Ke6 Bh8 Bd6 Qd3 b8R Nd1 Rb6 Qb5 Bb8 Qa4 Rb7 Nd3 Rb4 Ne1 Kd6 Ba6 Nc8 Bf1 Qd2 Bh3 Qg2 Qa3 Kc6 Qa4+ Kb7 Qg5 Qc5 Qe6 f8N Qh4 Qcf2 Qe8 Bh7 e4 Be5 e3 Be4 e2 Nb6 Ke7 Kc7 Qg4 d8Q+ Kf7 d6 Qee6 d7 Qd5 Qb8 Qge6 d8R Bg7 Nc8 Qed7+ Kb6 Bh8 Qd6 Bg7 Re8 Bh8 Be3 c1N Bc5 Bg7 Nd4 Bh8 Nc2 Nab3 Na1 Bg7 Rb1 Rc2 Rb2 Na2 Re6 Nf3 Re8 e1Q Re6 Qdb5+ Kc7 Qh1 Kd8 Ne1 Rc4 Qh2 Ba3 Qg3 Rb4 Qh4 Re8 Bh6 Bd4 Qe5 Bh7 Nbc1 Re4 Be3 Rf4 Qed5 Bc3 Ba7 Re2 Nb3 Be5 Bd4 Be4 Qd7+
8/kN1R1Qqn/3bb2q/3K3B/3RB1qb/Bp2R2N/rR2nQQ1/r1N1N1n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 d4 Kb6 f4 e5 h4 g5 a4 c4 a5+ Ka6 h6 b5 h5 g4 d6 g3 h7 g2 f6 b3 d7 b4 f7 b2 f5 b3 d5 Bb7 f6 Bb4 f8Q Nh6 f7 Be1 Ra2 Qe7 d8R Qa3 Nh3 g1N Nd2 b1Q+ Qc2 Ra7 Nf3 Bc8 d6 Qb4 d7 Qc3 Rb2 Bh4 Be2 Qd2 Ne1 Qe3+ Kd5 Nf5 h6 e4 Bh5 c3 Qg2 c2 Qe8 Nd4 f8Q Qd3 Qff2 e3 Qef7 e2 Rh2 Re8 h8N Qg3 h7 Qg4 Ng6 Qa1 h8R Ra8 Rh7 Ka7 a6 Rh8 Nf3 e1B Nge5 Bb4 Nd3 Bd6 Nfe1 Re8 Rh1 Re2 Re8 Rd2 d8N+ Nd7 Re3 Nde2 Nb7 Nf8 Rg7 Bf5 Rh2 Kb6 a7 Nh7 Rh1 Rg8 a8B Ka7 Qf8 Rd1 Rd7 Rd2 Qf7 Rb8 Rb1 Qag7 Ba3 c1Q Rb2 Rc8 Rh2 Rd1 Rh1 Rc2 Rh2 Qd2 Rh1 Ra1 Rh2 Qdb4 Nc1 Qbf4 Rh1 Qfh6 Rh2 Rc8 Rd2 Rc2 Rd4 Rca2 Qff3 Bf2 Nc5+ Kb8 Qgg3 Nf4+ Kc4 Be5 Be4 Bd6 Nb7 Ka7 Qh4 Bg3 Rb2 Nfe2 Kd5 Q4g6 Qg5 Bh4 Qgg2 Qg4 Qff2 Be6+
b3r2R/3R2b1/1nKB1Nk1/6Nb/n4R1q/Qpn1r2Q/q1qQ1NBR/3B3N w - - 0 1 illegal: No possible last move
5R1n/B2bN2Q/Nq3qnK/r3Q1b1/3rp2B/RQRrb1Q1/N3n1R1/k6B w - - 0 1 illegal: No possible last move, all moves rejected
1NBRrknQ/1BR1N2K/q3R3/1r1B3q/1Np2r2/2bNqQnb/5B2/1Q1n4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 Kf3 h5 Ke4 a5 b4 a4 d4 h4 g4 f6 d6 c4 g6 a3 g7 f3 g5 f2 d5 a2 d7+ Ke7 Kf5 h3 Kg6 h2 e4 f5 b6 f4 d6+ Ke6 b7 f3 e5 Ra7 b5 Qb6 d8Q Rh7 d7 Rh5 Nh3 Na6 b8N Qc6 b6 Rh7 b7 Qd6 Bg2 f1Q Be3 f2 Qf3 Qd5 Na3 Rh5 Nc2 Nc7 Nb4 Na8 Re1 Nh6 g8N a1Q Ne7 Qa2 Kh7 Bg7 g6 Qfe2 Qh8 f1R d8R Nc7 Nf2 Ra8 Nfd3 Nb5 Bf2 Qa6 Rg1 Bf6 g7 h1N Bh3+ Rf5 Rg4 Nc3 g8B+ Nf7 Rg3 Nd1 Rg7 Qe3 Nd7 Nc3 b8Q Rg1 Bg3 Qg5 Qe3 Qe4 Nc2 Qa7 Ng6 Qa5 Re8+ Be7 Qb1 Qa6 Qf3 Nd1 Bf2 Rg4 Ncb4 Ng3 Re3 Rb8 Re2 Rb5 Rd8 Bf6 Nb8 Qd4 Re3 Re4 Re1 Qg4 Re2 Rff4 Re3 Kf5 e6 Nh6 e7 Qe5 Bd5 Ng8 Bb7 Ke6 e8B Qc5 Rf7 Bc3 Bec6 Re5 Re4 Qe3 Rc7 Bd7 Bd5+ Kd6 Nh4 Re8 Re5 Qg5 Bhe6 Ke7 Nf5+ Kf8 Ne7 Bc8 Bh3 Be6 Re4 Bf7 Bhc8 Be6 Re5 Bh3 Re6 Qh5+
KnqQB2n/2R5/2q1brpb/8/1RRQ1Bb1/nr3N1r/4BN2/Bk2N1QR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 h4 c5 b4 a5 h6 a4 d6 f6 d7 g6 h7 a3 b6 f3 h5 f2 b7 a2 b5 Be7 d5 Qf8 d8R Bd7 b6 Be8 d6 Kb4 Kd5 c4 e4 f5 d7 c3 h6 f4 e5 f3 e6 c2 Be2 Kb3 Na3 f1Q Bf4 Kb2 Rc8 c1N d8Q f2 Nf3 Qh3 Rc7 f1B Nc2 Bg5 e7 Ra6 Nce1 Nd3 Rac1 a1R R1c4 Bd7 e8B Ne5 Qd4+ Kb1 Qg1 Qf6 Kc5 Nbc6 b8R Be6 b7 R1a3 Kb5 Qg4 Kc5 Bh3 Kb5 R6a5+ Kb6 Qgf5 Qdd4 Bg4 Qd8 Rc5 Qdd4 Rb3+ Ka6 Na5 Ka7 Rc6 Ka8 Ne7 Qd8 Nf7 Qdd4 Rf8 h8Q Qc2 h7 Bh6 Qd8 Qff5 Qhd4 Nh8 Qd3 Rf6 Q3d4 Nf7 h8B Rd6 Ng5 Nec6 Nh3 Qb5 Bg7 Nh8 Nf2 Qc1 Rbc8 Qc2 Rb4 Nc4 b8N Na3 Nd7 Nb8 Ne5 Qbc5 N5f3 Qc6+ Rcb7 Rd5 Rc4 Rh5 Rc7 Qd7 Rb5 Rh3 Rbb4 Qc8 Qc5 Rf8 Ba1 Rf6 Qcd4 Qc3 R4c5 Qc4 R5c6 Qb5 Rcc4 Qc6+
QrB4R/QrQ3R1/Nn1p1q2/Qb2B3/1rNq1bnB/N1n4K/4k3/BR1q4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 Kf7 f4 Kf6 Kf2 g5 Kg3 a5 b4 e5 h4 d3 b6 g4 b7 d6 h6 a4 b5 e4 h7 e3 b6 a3 c5 d2 h5 e2 h6 e1N c6 a2 c7 Ne7 Ba6 Ra7 Nf3 Bd7 c8Q Ng6 Rg1 Ne5 Qc7 Nc4 Ne5 Nc6 b8Q Bg7 b7 Qg8 Qa4 d1R Na3 Qf8 Qaa5 Ng2 Rb1 a1Q Bb2 Ne7 Kh2 g3+ Kh3 Rg8 h8B Rd4 h7 Nb6 Bc3 Rb4 Nec4+ Kf7 Bd4 Bh6 Bhe5 Bb5 h8R Ne3 f6 Ke6 f5+ Kd5 f7 Qg7 f8Q Ke4 f6 Kd3 f7 g2 Rb3+ Qc3 Rbb1 N7d5 Qfe8 Qg6 f8B Ke2 Be7 Bf4 Bh4 Qf6 Qed8 Qc1 Ba1 Nc3 Qdc8 Qd1 Q8d8 Ra8 Qa7 Re8 b8N Re6 Qc6 Re7 Bc8 Rd7 Na6 Rb8 Qca8 Rdb7 Qc7 Qd4 Rgf1 g1Q Rf3 Qc1 Rg3 Qcd1 Rg7 Ng4
2bR1Q2/RnrN1B2/3Q2r1/2Q2N1R/1q2RBnB/1pr2k1K/BbN5/2b2r1r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 d4 Kf6 h4 e5 f4 b5 Kf2 g5 Kg2 c5 a5 b3 a6 g4 h6 e4 a7 b4 h5 b2 d6 c4 d5 g3 d7 e3 d6 e2 h7 e1B h6 c3 Rh4 c2 Na3 b1R Nf3 Qc7 d8B+ Ne7 d7 Ba6 Nd4 Rb2 Bc4 Rg8 h8Q+ Bg7 h7 Bc8 Kh3 g2 Be3 c1R Nac2 Rcb1 Ra4 g1R Ba2 Rb3 Ra3 Kf7 f6 Kg6 f7 Qb7 f5+ Kf6 f8N Ke5 f6 Ng6 f7 Bd2 Rg4 Na6 Bh4 Nc5 d8R Bf6 Nf5 Rh1+ Kg3 Rb8 a8B Qe4 Ra4 Rb7 Ra7 Rc7 Bd5 Qc4 Be6 Qc3 Qg7 Nb7 h8R Qc4 Rh5 Qb5 Qf3 Rbf1 Qc6 Bc1 Qh6 Rd3 Bed5 b3 Qc5 Bh8 Rb4 Qc4 Be6+ Ke4 Nd7 Bhb2 f8Q Rc3 Bf7 Ne5+ Qg6 Ng4 Qgd6 Rg6 Rba4 Rhg1+ Kh3 Kf3 Bf4 Qb5 Rc4 Qb4 Re4 Rh1+
2RnnR1N/7b/k1B2RQN/2n4K/p1b2r2/bNB1q3/2nQ1NnB/R1Q1r3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Kg4 a5 f4 c5 d4 Kc7 b4 Kb6 d6 c4 d7 a4 d5 h3 f6 c3 d6 h6 f7 c2 f5 e4 f6 h2 Nd2 e3 Kh5 e2 g4 e1N g5 Nf3 g6 Ka7 b6+ Kb7 g7 Qc7 d8Q Nc6 d7 Qf4 b5 Nh4 Nb3 Ng2 Qe8 Ba3 d8Q Be6 f8R Qe3 f7 Bc4 Bd2 c1N Bc3 Ne2 Qc1 Ned4 Nh3 Nc2 Qdd2 Nd8 Nf2 Rh7 Rg1 h1B Qe6 Rc8 Qg6 Rc6 Bd3 Rf6 Rf1 Rf4 Be2 Nc6 Rc8 Nd8 f8N Rh8 Qg5 Rh7 Ng6 Rh8 Bd1 Rh7 Nh8 Nf6+ Kg6 h5 g8N h4 Nh6 Re7 Bf3+ Ree4 Qg3 Ne8 Kh5 h3 Qg6 h2 Re1 Nc6 Rf1 Nc7 Rf8 Nd8 Rf6 Ne8 Rf8 Ka8 b7+ Ka7 b6+ Ka6 b8R Qe2 b7+ Rf6 Nh3 Nge1 Bg4 Re3 Rf5 Be4 Qg7 h1N Nf2 Ng2 Bf3 Rf7 Rf4 Bh7 Rc8 Qd3 b8B Re1 Bbe5 Qe3 Bc6 Rf6 Qg6 Ng3+ Kg5 Ne4+ Kh5 Nc5 Rf3 Rd6 Bh2 Rd4 R3f6 Rf4
3knr1Q/nq1N1Q1R/b1BB1rn1/8/Nn2N1r1/1pRKB2B/1b1R2b1/3Q1N2 w - - 0 1 illegal: No possible last move
N1q1N3/R2K4/1R1QB3/R1b2BpQ/n1B1b1n1/1rkb1N2/Q1rr3n/1b2B1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 g5 e4+ d3 b4 d5+ e6 a5 h6 f6 e5 d4 b6 a4 h5 a3 b7 a2 h7 Bc5 b5 Qe7 h6 Qd6 b6 Qe7 Nd2+ Kb4 c4 Bd6 c5 Nc6 b8R Bb7 Ndf3 d2 Bc4 Na7 c6 d3 c7 Nb5 c8B Qd8 e7 Bc5 Ke6 f5 e8N Be4 b7 f4 Bb2 Nf6 Bc3+ Ka3 Qb1 d1B Be1 d2 Bd7 Rf8 h8Q Ng4 h7 Be2 Qf6 d1B h8Q B2d3 Rh7 B1c2 Re7 Rf7 Qh5 Nc3 Bc8 Na4 Qfg6 Qa5 Kd7 Qc3 e6 Ra5 Qf6 Rb5 Qe5 Rb3 Qd6 Rf8 Rf7 Kb4 e7 Qd2 Qb2 Bb1 Qa3+ Kc3 Rf5 Bb4 Ra5 Bc5 Nd4 f3 Ba6 f2 Kd8 f1N Rb5 Bdc2 Be6 Kd3 Kd7 Rf2 Ndf3+ Bd4 Ra8 Nfh2 b8N Rg2 Ra7 Qc3 Rb6+ Qc4 Bb5 Nb2 Na6 Rd2 Nac7 Kc3 Na8 Bcd3 Bf5 Qc5 Bc4 Bf2 Nf6 Be3 e8B Bd4 Bef7 Qc8+ Ke7 Be3 B7e6 Bc5 Ne8 Bbc2 Rc1 a1R Rb1 Ra2 Ra1 Bb1 Qa4 Nd1 Qa6 Rc2 Ra4 Qb8 Kd7 Nb2 Ra5 Rc1 Rab5 Rc2 Qa2 Na4 Rba5 Qc8+
qn1K1Q1Q/3N2QN/R3Nqrp/1b2RBB1/R5nB/B1q5/N2q4/4bqrk w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 a5 b4 c5 d4 h6 g4 a4 g5+ Kf7 Ke5 e6 f4 a3 f6 Kg6 f7 a2 f5+ Kg7 g6 c4 d6 h3 b6 c3 d7 c2 b5 h2 d5 Bb4 f8N Rh7 f6+ Kh8 f7 Kg7 b7 Bd2 Kd6 Kf6 g7 Kf5 b6 Ke4 Nf3 e5 Ne6 Qf8+ Kc7 Ba5 Bb2 c1Q+ Nc3+ Ke3 d8R Kf2 d6 e4 d7 e3 Qd4 Qe8 Nfg5 Bb4 Bd3 Kg2 Re1 h1Q Bf5 Ra4 f8Q Nc6 b8B e2 b7 Nf6 g8N Rg7 Nh7 Ng4 Ngf6 Rg6 Ba7 Ra5 Bc5 Qg5 Bc1 Qf7 b8B Ba6 Bf4 Qgh4 Bg5 Bb5 Bba7 Ra4 Ra8 Qf2 Bb8 Qfg1 Ra6 Kh2 Bba7 Nb8 Qh8 Ra5 Be7 Ra3 d8Q Qa8 Nd7 Kh1 Qdg7 Rb3 Bh4 Rb1 Bac5 Rd1 Qdf8 Rc1 Rd1 e1Q Beg5 Qgg2 Rd4 Qc2 Rb1 a1Q Na2 Qg3+ Kc8 Rg1 Kd8 Qgh2 Rb3 Qf1 Re3 Be1 Ba3 Qc3 Re5 Qhd2 Rda4 Qf6+
Rn4Q1/1bnq2N1/2R2bRB/4n1Q1/r2Qn3/3NB2k/1B2r2p/N1qBqRK1 w - - 0 1 illegal: No possible last move, all moves rejected
BnN2K1b/rNRB4/5Q1R/bqR3r1/nk1Bb2Q/rb6/Q3qpN1/1N3Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 d4+ Kb4 e4 c5 h4 g5 h6 f5 d6 a4 h7 g4 d7 f3 Ke6 f4 Kf7 c4 b6 g3 b7 f2 h5 a3 h6 f3 d5 g2 e5 a2 e6 c3 d6 c2 e7 Ra3 e8B Kb3 Be3 Ra4 Nh3 g1B Bg2 f1B Bd4 f2 Nf4 Kc4 b4 c1R b5 Nc6 b8R Rc2 b6 Qc7 b7 Be2 Qf1 Qb6 d8Q Bh2 d7 Ra7 Qh4 Bd3 d8N Kb4 Bd7 Nge7 Ra8 Rb2 b8N Rg8 h8Q Rg5 h7 Qb5 Qf6 Bg7 h8Q Be4 Nb7 Rb3 Qg8 Bh8 Kf8 Nd5 Bf3 Bg3 Ng2 Nb6 Rh3 Bc7 Qd5 Ra4 Ra5 Rba3 Qde6 Qe2 Rc5 Ra7 Qd5 Na4 Qde6 Ne5 Qa6 Ba5 Nc6+ Kb3 Ne7 Kb4 Qae6 Nc6 Qg8 Nb8 Rc7 Bc2 Bd5 Bb3 Rhc3 Ra6 R3c5 Ra7 Qhf4 Nc6 Bg4 Qb5 Nc3 Rg7 Nd6 Bd1 Qg1 Ne5 Ba8 Bd7 Nb7 Bc6 Bd7 Be4 Nc8 Nc6 Rc1 a1Q Qa2 Qb2 Nb1 Qc2 Rh5 Qcd3 Qf1 Qe2 Q4h4 Nb8 Rh6 Rg5 R1c5 Bb3
Q1q3R1/N2q2b1/2N1rkq1/Rb1Q1Nn1/1NR1B3/Br2B3/q3p1nQ/3QK2n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 d4 h5 g4 a5 f6 e5 f5 a4 g5 c4 b6 a3 g6+ Ke8 b7 e4 f7+ Ke7 d6+ Kf6 d7 c3 g7 c2 b5 a2 b6 e3 d5 h3 d6 h2 Nf3 h4 Na3 e2 Bg2 h3 Nh4 Ra6 Be3 c1Q Nb5 Qb1 Na7 Nc6 b8Q Qe8 d8N Nb4 d7 Nh6 g8R Bg7 f8Q+ Nf7 b7 Nd5 Be4 Re6 Ndc6 Nf4 d8Q+ Qe7 Qd5 Bd7 Nb4 Bb5 Qbd6 Qd7 Qa8 Ng5 b8N Qd3 Rg1 h1Q N8c6 h2 Rc1 a1Q Rc4 Qa2 Qc7 Kf7 f6 Qdc2 Qce5 Qg2 Nf5 h1N Qeb8 Kg6 f7 Rh3 f8B Kf6 Rf1 Rf3 Rf2 Qh3 Rh2 Qh7 Rh5 Qg6 Qbd6 Nfh3 Qh2 Nf4 Bc1 Rb3 Bc5 Qd3 B5e3 Qc8 Ba3 Qd4 Qc5 Qdd8 Qcd5 Qdd7 Q5d2 Ba6 Nh4 Nh7 Ra5 Ng5 Qd5 Bb5 Nf5 Ng2+
1rQR1Bnq/2rR1Qn1/b7/4K2Q/1RqBQBn1/b6q/1q1pB3/2NNk1N1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 a5 f4 g5 c4 d6 b4 d3 b6 d2 h6 a4 b5 g4 c5 a3 c6 a2 b7 g3 h5 g2 c7 Be7 h7 Nc6 b8R Na7 b6 Qf8 b7 Nc6 h6 Ra7 Qa4 d1N Be2 Nd8 Nc3 Ne6 Rb1 a1Q Rb4 Ne3 Nd1 Ng7 Bb2 Qf7 Bd4 Qb2 Rh3 Ng4 Rd3 Qc4 Qe8 Be6 Rd8 Bc8 b8B Ba6 c8Q Rc7 Qa4 Kf7 f6 Kg6 f5+ Kh5 f7 Kh4 f8B d5+ Kf3 e4+ Kf4 e3 f6 Bc5 f7 Be7 Qe8 Bc5 Qe4 Be7 Nh3 g1Q Rd2 Qh1 Ng1 Qh3 Rd7 N8f6 Rd8 Rg8 h8N Bc5 h7 Be7 Bf3 e2 Rd7 e1Q Be2 Bc5 Rd3 Qec3 Ng6+ Kh5 Ne5 Kh4 Rd2 Rh8 Nd3 Ng8 Nc1 Be7 Be5 d4 Ba7 d3 Bad4 Bc5 Bed6 N4h6 Ke5+ Kg3 Ne3 Kf2 Nd1+ Ke1 Rd8 Nf6 Rd7 Rg8 h8Q Nhg4+ Kf4 Nge8 Qh5 Rh8 Kf5 Ng8 Bf4 Bd6 Be7 Bc5 f8Q Bd6 Qff7 Bc5 Rc2 d2 Bf8 Bd6 Rb5 Ba3 Rb4 Rh6 Rd8 Rb6 Rd7 Rb8 Rd8 Nh2+ Ke5 Ng7 Rd7 Qcg3 Rd8 Qg6 Rc3 Qh6 Rd3 Qh7 Bc3 Qh6 R3d7 Qh8 Bd4 Ng4+
Rn2B2R/1N3B2/bB1qbR2/1n4N1/rQ2NQ1q/4prb1/B2Qb1R1/2K2k1n w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 d5 c4 h5 f4 a5 g4 e5 c5 d3 b6 e4 f6 Ke6 c6 a4 g6 d4 c7 Kd5 g5 Kc4 g7 a3 g6 h4 b5 a2 f5 h3 f7 h2 b7 Nc6 b8Q Nge7 g8B Na7 b6 Qd6 g7 Rh4 b7 Rh5 f6 Rh8 Nc3 Rh6 Nh3 Be6 c8N Rh4 Rg1 h1N Rg2 Rf4 Ng5 Rf3 Bb2 e3+ Kc1 Nb5 Qd2 Ra7 Nce4 Ra4 Qc7+ Nc6 b8R Be7 f8Q Bd8 Qca5 Bc7 Rb6 Nb8 f7 Qd5 Ba3 Bg3 Bc5 Qd7 Qd6 Qc6 Qf4 Qd6 Rb1 a1Q f8R Qa2 Bf7 Qb3 Rh8 Qb4 Qd1 Qe1 g8B Qb4 Ra1 Qe1 Ra6 Qb4 Bb6 Qe1 Re2 d2+ Kb2 Kd3 Qb4 Qf2 Qe1 d1B Kc1 Qh2 Rg2+ Be2 Be8 Qh4 Bgf7 Qe7 Ncd6 Qd8 Nb7 Qd7 Rg1 Qd6 Bg2 Bf1 Qec3+ Ke2 Bh3 d3 Ra8 Bc8 Bhe6 Bh3 Ba2 Bhe6 Rg2+ Kf1 Ra6 d2+ Kc2+ d1B+ Kc1 Bc4 Qd2 B8e6 Ra8 Bde2 Rb1 Nc7 Rb3 Ba6 Rc3 Qd5 Rc6 Nb5 Rd6 Bf5 Rg6 Be6 Rf6 Qd6
5n2/R1NB1Q2/B1qr3k/Q1qnR1r1/nB1RQ1n1/1Np5/4NKb1/b1Rr2N1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kg7 d4 c5 g4 h5 g5 e5 f6+ Kh7 f7 a5 g6+ Kg7 b6 a4 d6 c4 b7 a3 d5 e4 b5 a2 d7 h3 d6 c3 f5 h2 b6 e3 f6+ Kh6 g7 h4 Qd3 h3 Nd2 e2 Qe4 Na6 b8R Ne7 g8B Rh7 b7 Qb6 d8Q Ng6 d7 Nc5 Kf2 e1N Ba6 Nc2 Nb3+ Ne3 Ba3 Na4 Bb4 Qc5 Qa5 Rg7 d8R Be7 Rc1 a1R Rd4 Nd5 f8N Bg4 f7 Bf3 Bh7 Bg2 Ne6 Nf8 Bf5 Rg5 Re8 Rd8 b8N Rd6 Nc7 Rb1 Bd7 Ra1 Nf3 Rb1 Rhf1 h1Q Nc6 h2 Ng1 Ra1 Rce1 Rd1 Ra8 Rg7 Re2 Bg5 Ra7 Bc1 Rfe1 Bb2 Rc2 Ba1 Rc1 Rg8 Re2 Ng6 f8Q+ Rg7 Qf7 Nf8 Qc2 Rg5 Re5 Bh3 Be6 Qe4 Bg4 Bg2 Bd7 Qg6 Qe4 h1N+ Ke2 Ng3+ Kf2 Nf5 Nd8 Qf6 Nde6 Nfe3+ Nf4 Qe6 Nfe2 Qe8 Be6 Qec6 Bd7 Ng4+
1QnKnR2/NQQB2n1/q3b3/2RN3R/pNQ2nr1/3qB2B/1k1q1r1N/4b3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 a5 b4 h5 f4+ Ke4 g4 e5+ d6 c6 d4 a4 d5 h3 b6 h2 b5 h4 b7 h3 f6 Ra6 f5 Ra5 g5 Rh7 g6 Nh6 f7 Bd7 f6 Ra8 b6 Ng8 g7 Ne7 g8B Be6 d7 Nc8+ d6 Rg7 Be3 Rg4 Qc1 Bh6 Bg2+ Kd3 f8Q e4 f7 Bg5 Qg7 Bh4 f8R Be1 Nf3 Ra6 Rg1 h1N Nc3 h2 Nd5 Ng3 Bh3 h1Q Nh2 Nf5 Qgb2 Qf6 d8Q Qf3 d7 Ng7 Qc7 Ra7 d8N Ra6 Bg5 e3 Rh1 e2 Be3 Qg6 Qb4 Qh6 Qcb2 Qg3 Q2d4+ Kc2 Bf7 Qf6 Be8 Ra7 Bd7 Na6+ Kc4 c5 Kb5 c4 Kc6 c3 b8N Qg6 b7 Ra8 Qbc4 Kb2 Qe4 c2 Ra3 c1N Rc3 Nd3 Qf3 Nac5 Na6 Nf4 b8Q+ Nb7 Nab4 Nbd6 Rc1 Nde8 Kb7 Nf6 Ndc6 Nfe8 Na7 Qd3 Qg2 Qf3 Rc3 Qf1 Qge4 Bg3 Qh7 e1Q Kc6 Qed2 Qcb7 Nf6 Kc7 Be1 Kd8 Nfe8 Rc1 Nf5 Qf7 Nfg7 Qcc7 Qa6 Rc5 Qfd3 Qf5 Rg2 Qe4 Rf2 Qc4 Qb5 Nac6 Ra5 Na7 Qa6 Rg1 Rb5 Rg5 Rb6 Rh5 Rd6 Nc3 Rd4 Ncd5 Ne2 Rb5 Rg4 Rc5 Nf4
N1Bn1R2/1qb2bNR/k2nr3/2npQ1QN/r2B1n1Q/R3q3/5N2/R4qBK w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 Kd7 Kf2 Kc7 Kg2 Kb6 c4 g5 f6 e5 h6 e4 h7 d3 f5 e3 h5 a4 f7 d2 c5+ Ka7 h6 a3 b6+ Kb7 f6 a2 b5 e2 Nc3 e1Q Nge2 g4 Ng3 Be6 c6+ Kc8 c7 Kb7 c8N Ne7 Nh5 g3 Qg4 d1Q Be3 Qb1 Qg5 Ng6 Ne4 Ra4 Nf2 Rg8 h8B Qc2 h7 Bc5 f8R Qe8 f7 Qb3 Bhd4 Nc6 h8Q Bd6 Bd3 Nd8 Bf5 Rg7 Rh2 Qe2 Kh1 Nf4 Rh3 Rg6 Rh4 Kb8 b7 Bc7 Nb6 Ka7 b8R Qc6 Rc8 Qb7 Bh3 Qc3 Na8+ Qc5 b6+ Ka6 Rg8 Qec4 f8N Bf7 Ne6 Qe7 Neg7 Re6 Rf8 g2+ Kh2 g1N Kh1 Nge2 Qh7 Qa7 b7 Nc3 b8Q Nb5 Qe4 Qd7 Qee5 Nd6 Qb4 Qdb5 Qe1 Qc3 Rb8 Qe2 Rb3 Qb7 Ra3 Qeb5 Ng4 Qe2 Bg1 Qf1 Nf2 Qe3 Qb4 Rf6 Bc8 Re6 Re1 a1N Rh3 Nb3 Rea1 Nb5 Qbe7 Nc5 Qh4 Ne2 Q7g5 Nd6 Qhe4 Ka5 Ng3 Qf4 Rh7 Qe3 Qeh4 Ka6 N3h5 Nf4
2kBnKB1/1b1q2R1/2B1N1rQ/1rp2N1N/1BN1r3/1R1Qb1qR/1r2Q1nn/8 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kc4 c5 g4 a5 b4 e5 f4 e4 d4 e3 b6 h3 d6 h4 Kd5 a4 f6 a3 f5 h2 g5 a2 b7 e2 g6 e1N f7 h3 f6 Qe8 g7 Be7 f8Q Ng2 f7 Ra6 b5 Ne1 b6 Rh6 Ne2 Bd8 Nf4 Nc6 b8R Bb7 Ba3 Ra7 Qe2 Ng2 Nh5 Rh7 Nd2 Ba6 b7 Nh4 Bg2 Be7 Rag1 a1Q Nc4 Ne5 Bb4 Ng4 Bf3 Qc3 Be4 N8h6 g8B N6f5 Qh6 Ng2 f8Q Ng7 Qff3 Ra8 Qfd3 Bg5 Bf3 Qc8 Be4 Kd8 d7 Be3 Kd6 Ne8+ Ke6 Ra7 Bc6 Rg7 d5 Rg6+ Kf7 Qe5 Kf8 Qg3 Bc3 Kc7 d8N Qd7 Bb4 Ra8 Rf1 Ra7 Rf7 Ra8 Rh7 Ra7 Rg1 h1R Rg7 h2 Rc1 Rg5 Rc3 Re1 Rb3 h1R Ra8 Bd4 b8N Rh2 d6+ Kc8 Ne6 Rb7 Ra7 Rb5 Ra8 Bb7 Raa3 Nf2 Ra1 Rhh1 Qed1 Rhg1 Bd5 Rg4 Nc6 Qc7 Q1c2 Rg6 Ne7+ Kd7 Nf5+ Kc8 Qa2 Re4 Bc6 Ng4 Qae2 Be3 Rab1 Rc1 Ra1 Rc3 Rh1 Rc2 Rh3 Nh2 d7+ Kb8 d8B Kc8 Bh4 Qd7 Bd8 Rb2
4NKR1/N1p2B2/bb1b1N1n/2r1N3/QQRr3q/n1n1q1B1/2bkB3/2R3QR w - - 0 1 illegal: No possible last move
1nQ2rQ1/Bp4qn/2NB2Q1/2KQR1b1/2BNbR2/q6N/n3q1k1/2rq1R1N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 b3 f4 c6 a4 g4 f6 g3 f5 b2 h6 g2 h7 e6 h5 Ne7 f7 Bh6 f8R Ra7 f6 Qc7 a5 Ra6 f7 Ng6 Nh3 g1N Nc3 b1Q Ne2 Qd7 Ng3 Rg8 h8Q Ra8 a6 Qb3 a7 Qf3 Qf6 Na6 Bc4 Bg5 h6 Qe2 h7 Nb8 h8Q Qc7 Re8 Nf8 Ra4 Nh7 Qg6 Rf8 Qhg8 Qe7 d3 Bd7 Be3 c5+ Kc3 Ke5 d6 Bb5 d7 Bc6 d8N Be4 Rb4 Qf6 Re7 Qg7 Nc6+ Kd6+ Nd4 Ke5 Bf2 Rc8 f8B Rc6 Bb3 c4 Re8 Kd5 Bd6 Rc5 Re7 Rc6 Qc8 e5 Ra4 Rc7 Kb4 Rc5 Qd2 Qd1 Be3 Ne2 Rf1 Nc1 Nh1 Rc6 Kb5 Na2 Re6 Nd7 Qg8 Rf8 a8Q Rc7 Qc8 Nb8 Nf3 Rc6 Ba7 Qe2 d4 Rc7 Bc2 c3+ Bd3 c2 Rc4 c1Q Rb4 Bf5 Bc4+ Ke4 d5 Qa3 Nd4 Rc6 Qd1 Ke3 Ra4 e4 Re5 Rc7 N3f2 Kf4 Nh3+ Kg4 Qd2 e3 Rb4 Qd1 Ra4 e2 Rb4 Nc6 Kc5 e1Q Bd3 Qd7 Nc2+ Qe4 Kb5 Qdc1 Bdc5 Kh4 d6 Qg4 Rbf4 Qg7 d7 Qd1 d8N Be4 Bd6 Nb8 Kb6 Rc5 Nc6 Rc4 Be2 Rc3 Qdd5 Rc5 N2d4 Rc1 Rf7 Qh5 Bc4 Qhe2 R7f4+ Qg4 N1f2 Kg3 Nh1+ Kg2 Kb5 Qge2 Kb6 Qab3+ Kc5 Qa3+
1kb1R3/1pRb2RB/n3q3/q1q1R2b/3QQ1Qb/1r2NB1N/5KBB/Nn4r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 d4 e5 a4 c5 g4 Kc7 g6 h5 g5 c4 f6 b3 g7 c3 a5 c2 a6 h4 g6 e4 f7 h3 a7 e3 d6+ Kb6 d5 e2 d7 Kc7 f5 b2 d6+ Kc6 f6 h2 Kf2 Rh7 Nd2 b1B Nb3 Rh8 Bg2+ Kb6 Nh3 Na6 Re1 h1B Bf4 c1Q Bh2 Qe8 d8Q+ Qc7 d7 Nb8 Qe7 Bd3 d8Q Bc4 Q8d4+ Qc5 Rc1 Nd7 Na1 Bb5 Qe4 Ne7 g8B Nd5 g7 Nb8 Bh7 Nc3 g8B Be7 f8R Na6 Bd5 Rg8 Rf7 Nb1 Rg7 Bbd7 f7 Bd8 f8R Qe6 Re8 Bh4+ Rg3 Kc7 Qa4 Nd2 Qg4 Nb1 Bdf3 Qa2 Qc2 Qa5 Qce4 Rg6 Rc3 Rb6 Rcc1 Rb3 Rc4 Bf5 Rc3 Bcd7 Re5 Rg8 a8N+ Kb8 Nc7 Bc8 Nd5 Bfd7 Ne3 Rg5 Rf1 e1Q+ Kg1 Qe7 Rc7 Qec5 Re8 Qe2 Re1 Qec4 Kf2 Qe6 Qg7 Rd5 Re2 Rd1 Qgd4 Rg1 Rc2 Qcb6 R2c5 Qbc6 Rd5 Qcc5 Re5 Qab4 Qgg6 Nc3 Bg4 Qcb5 Bf1 Bf3 Bg2 Nb1 Qgf5 Q4c5 Bh5 Be7 Rg7 Qa5 Qff4 Bg4 Qff3 Bh4+ Qg3 Bf5 Be2 Bg6 Bef3 Bg5 Qgf4 Bh5 Qg4 Bh4+
1BQbN2n/1R3Qp1/B1Q2N1n/2B1KN1r/4R3/2q3R1/2prq1r1/2kb1qBR w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 b4+ Kd6 h4 c5 f4 e5 d4 a5 f6 c4 f7 a4 h5 c3 h6 g3 h7 a3 b6 g2 b7 c2 f5 a2 f6 Ne7 b5 Rg8 h8Q Qb6 Be3 Qa6 b6 Qa3 Nf3 g1R Nh4 Rg2 Bg1 Qg3 Qf3 Nbc6 b8R Bg4 b7 Bh3 Nc3 Ra5 Ba6 Bc8 Re1 Kc7 d6+ Kb6 d5+ Nd4 d7 Kc5 d8R Kb4 d6 Kb3 d7 Kb2 Nd5 a1Q Re3 Qae1 Re8 Ndf5 d8N Ng6 Ne6 Qf1 Nec7 Be7 f8Q Kc1 f7 Nh6 Nf6 Bg4 Ra3 Qh3 Qc3 Bd1 Qc6 Qe6 Rg3 Qb3 Bc4 Qc3 Ba6 Bb4 Re6 Be7 Qfe8 Rc5 f8B Rb5 Qf7 Rc5 Nh5 Bg5 Be7 Rd8 Qhf8 Rcd5 Bec5 Nh8 Re7 R8d6 Qc8 Rdd2 Re6 Bd8 Ne8 R6d5 Nhf6 Qb2 Ke3 e4 Re7 Rh5 Nf5 Qc4 Kf4 e3+ Re4 e2 Rb3 e1Q Rg3 Qa3 Ke5 Qf2 Ra8 Qff3 b8B Qce2 Ra7 Qff1 Rb7 Qc3+
4b2r/b2q1pQb/R7/R1Qq4/QK1N1B2/1R1NNBnk/1rp1Nn2/2B1rR2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 a5 d4 g5 Kd2 c5 Kc3 c4 e4 f3 b6 g4 b7 f2 b5 g3 h6 g2 d6 Ke6 e5 Kf5 e6 a4 h5 a3 d7 a2 h7 Nf6 e7 Qb6 e8Q Qc7 d8N Nc6 b8R Na5 h6 Be7 d5 Qh2 b6 Ba6 d6 Ng8 b7 Qh4 d7 Qh2 Qd4 Nb3 Be2 f1B Nc6 Qc7 d8R Nf6 Nd2 Qd7 Bf3 Bb5 Ne2 Nc5 Kb4 c3 Nc4 g1Q Ne3+ Kg5 Qd6 c2 Ncd4 Nce4 Qc5+ Qd5 Rdc8 Qg4 Rc6 Qd7 Ra6 Ng3 Ra5 Bh3 Rf1 Kh4 Ra6 Bf5 Ra5 Rg8 h8Q Bh7 Qg7 Ng4 Ra6 Rh8 Ra5 Bf5 h7 Kh3 Ra6 Nf2 Ra5 Rg8 h8N Bh7 Ng6 Rh8 Ne5 Bd8 Nd3 Bb6 Rd8 Ba4 b8B Ba7 Bf4 Bb5 Rb1 a1R Rb3 Rb8 Rc8 Rb1 Rc6 Rb2 Rca6 Ra8 Qb8 Bc6 Qbb5 Rae8 Qa4 Re5 Nef5 Re3 Nc3 Re1 Ne3 Qc8 Nce2 Be8 Qb6 Qg4 Qc5 Qgd7
1n3qrr/qQ1pQ2B/QBn1q2R/r1R1pQN1/4RRKb/3b3N/6Bk/4N3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 b4 Ke5 c4 a5 h4 g5 c5 d3 b6 e6 c6 d2 b5 a4 h6 a3 h5 a2 h7 Ba6 f6 Bh6 f7 Qf8 b7 Ra7 c7 Qa3+ Kg4 Qc5 f8R Qd6 c8B Bg7 f4+ Ke4 h6 e5 b6 Nc6 b8Q Qd3 b7 Qb5 f5 Qb2 f6 Qd4 f7 Qd3 Na3 Qb5 Nc2 Qa5 Nh3 Qa3 Bd3+ Kd5 Qe2 d1R Ne1 Bc4 Be3 Rc1 Bb6 Nge7 Rb1 a1Q Rb4 Ba6 Re4 Q1a2 Qf2 Rc4 Qa8 Nb8 Qf5 Bf6 Rf1 Rc3 Rff4 Nec6 Rg8 Rc5 f8Q Ra5 Qe7 Bc4 Bc2 Bd3 Rg6 Rg8 h8R Qd6 h7 Qaa3 Bd8 Qe6 Bb6 Qb4 Rh6 Qc5 Kh5 g4 Bb1 g3 Bc2 Na6 b8Q g2 Qbb7 Nb8 Bb1 Bg5 Kg4 Qa3 Qa6 Qc5 Q8b7 g1Q+ Ng2 Qgf2 Ne1 Ra8 Bc2 Re8 Rg8 Bh4 h8N Qf1 Rgg6 Rg8 Nf7 Qff2 Nfg5 Qcd6 Qh7 Qf8 Qe7 Rh8 Bc7 Qa7 Bb6 Rg8 Rc4 Be4 Rc5+ Kd4 Bb1 Ke3 Rg7 Bd3 Rgg6 Qb3 Rd6 Qe6 Rdd4 Ke2 Rb4 Bf2 Rbe4+ Kf1 Nc2 Kg2 Ne1+ Kh1 Ng1+ Bh4 Rd4 Rh8 Rdc4 Qff6 N1h3 Kh2 Qc7 Nd8 Bb7 Bf1 Bg2 Ndc6 Qcb7 Qff7 Bbe4 Bd3 Rd4 Qc4 Qg6 Qce6+ Bf5 Qe8 Rde4 Q8f7 Qb5 Na6 Qc4 Raf8 Qh7 Nab8 Qca6 Rfg8 Qg6 Qa2 Qge6 Qb3 Bh7 Qf8 Qf5 Qe6
2R4Q/1Bp2Qq1/pR4NB/Nrqqr1nN/b7/k3B3/1bBR2Kb/3n1QN1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 e5 g4 h5 d4 e4 g5 a6 f6 h3 b6 h2 f7 e3+ Kg2 e2 g6 e1B b5 h4 g7 Bc3 f5 Bd2 b7 Bb4 f6 Qe7 b6 Ba3 Bh6 Bc5 Nc3 Qe6 Bd3 Ra7 Qf1 Qe3 Ra2 Qe5 Nce2 Ba3 Rd2 Qh5 Bc2 Qg5+ Ng3 Nc6 b8R Na5 b7 Bd7 Rc8 Bb2 b8B Rb7 Ba7 Nc4 Bb6 Be7 f8N Ba4 f7 Nf6 g8B Qg7 Ng6 Nh7 f8Q Ng5 Nh5 Rh7 Ba7 Rb5 Q8f7 Rh8 Bh7 Re8 Bb6 Bf6 Bg8 Re7 Ba7 Be5 Bb6 Kd7 d6 Kc6 d7 Bd6 d8Q h3+ Kf2 Ree5 d5+ Kb7 Bh7 Ne3 Qh8 Nd1+ Kg3 Bc1 Be3 Bb2 Rd4 Kb6 Rd2+ Ka5 Bg8 Bf8 d6 Kb4 d7 Bd6 d8N Ka3 Nb7 Ba1 Nf3 Bb2 Rg1 h1Q Na5 h2 Rgg2 Bc1 Ng1 Bb2 Rgf2 Qc6 Rf6 Qc5 Kg2 Bf8 Rc6 Bd6 Rb6 h1Q+ Kg3 Qh4+ Kg2 Qhc4 Bh7 Re7 Be4 Bh2 Bb7 Qa2 Ngf4 Re6 Bc2 Re5 Ng6 Qad5+
3b1k2/p3q3/r1rq2nq/3R1p1N/3N2n1/BBBbQn1K/1B1NR3/Q1NRQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 Kg2 f5 d4 g5 h4 f3+ Kh3 f2 e4 c4 b4 c3 d6 c2 h6 Nf6 h5 Be7 d7+ Kf7 d5 Kf8 h7 Qc7 d8Q+ Ne8 d6 Qc6 e5 Ba6 b6 Bc8 b7 Nd7 b8B Qc4 h6 Qa6 e6 Qa5 b5 Nb6 d7 Na4 b6 Bf6 e7+ Kf7 b7 Nb2 Be5 Qb4 b8N Qf4 Rh2 Qd2 Qe1 Qd6 Nc6 Nd3 Ne2 Ba6 Beb2 Rc8 Nd2 Ne5 Qb6 Ng6 d8R Bd3 Ncd4 Rc6 Qc5 Rg8 h8Q Ra6 Bg2 f1Q h7 Qff4 Qb6 Qfe5 Bd5+ Qee6 Bb3 g4+ Kg2 g3 Kh3 g2 Ra5 Qa3 Rad5 Qed6 Bc3 Qab4 Ba3 c1Q Bcb2 Qcc6 Nc1 Bg5 Bc3 Nf6 e8N Ng4 Ng7 Bh4 Rd7+ Kf8 Nh5 Bd8 Qhe5 Qe7 h8B Qbd6 Qa5 Qb6 Q5e3 g1N+ Kg2 Nf3 Kh3 Kf7 Re2 Kf8 Bc5 Bc4 Nb5 Qf4 Bcg7+ Kf7 Nb1 Ke8 Rd1 Qh6 Qa1 Rf8 R7d5 Qc6 Nd2 Bd3 Bb2 Rf6 Bca3 Re6 Bhc3 Kf8 Nd4 Qcc5 Nc2 Rec6 Nd4 Qcd6
1r2rRn1/1N1Kb2n/4QQB1/1qpB4/2b4p/R3Nn2/1BRR2n1/QN2kn1N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 Kf4 d4+ Ke4 b4 e5+ d6 a5 g4 h5 f4 c6 g5 h3 b6 a4 d5 h4 b7 h2 g6 a3 b5 a2 g7 Ra5 f6 Qe8 f5 Qd7 f7 Qe6 f6 Ra4 b6 Qd7 Ne2 Kf3 Ng3+ Kf2 Bd3 e4 Bb2 e3 Bg6 Nh6 g8B Bg7 f8Q e2 f7 Qe6 d7 e1N d8R Ng2 d6 Ra6 d7 Qg4 Kd6 c5 Qd5 Ra8 Qe6 Qb4 Rc1 h1N Rc2+ Qd2+ Kc7 Qe2 Qfe7 Bd4 f8R+ Ke1 Q7f6 Be3 Kd6 Bg5 B8f7 Ng8 Kc7 Nf2 Nh1 Nc6 b8N Ne5 b7 Qb5 Nc6 Nh3 b8Q Ba6 Qa7 Rb8 Ne7 Rc8+ Kd6 Rb8 Qf4 Bf6 Nf5 Ng5 Ne3 Nh7 Qff5 Bg5 Qef6 Nf3 Bd5 Qa4 Q5e6 Bc4 Rc8 Qb5 d8N Nh2 Rc6 Nf1 Nb7 Re8 Kd7 Rb8 Qd4 Be7 Qdf6 Nh6 Rf7 Rhe8 Rf8 Ng8 Nd2+ Ke2 Rd1 a1N Nb1+ Nd2 Qa2 Nb3 Qa4 Nd4 Qa1 Qb4 Rd6 Nf3 Ra6 Qb6 Ra3 Qb3 Rc3 Nf1 Rd2+ Ke1 Rcc2 Qb5+
kN1r1R2/5NQb/1K5Q/BBr3NR/p3pb1R/R2N2n1/2nqQ3/bBr4r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 g4 a5 b4 h5 d4 c5 f4 Kc7 d6+ Kb7 b6 e4 f6 a4 f5 h3 g5 h4 g6 c4 b5 h2 d5 h3 Kd4 c3 Kc5 c2 g7 Ra5 f7 Be6 f6 Rh4 Nf3 Bf5 Bd2 c1B Ra3 Be6 Ne1 Rh8 Qe2 Bd7 Nd3 Be7 f8Q Rh7 f7 Ra6 Ba5 Nc6 Nd2 Rh6 Nf3 Nb4 Ng5 Nf6 g8B Nh7 Qg7 Ra8 f8Q Kb8 b7 Qe8 Kb6 Bf6 Be6 Bc8 d7 Rh5 d8N Qd7 d6 Ba1 Ndf7 Nf6 Ba2 Nc2 Bb1 Bd2 Qh6 Bf4 Qfg7 Qd8+ Kc5 Bg4 d7 Bf5 Kc6 Ka7 b8R Bh7 Rc8 Rb8 b6+ Ka8 Rc7 Rc8 Kb5 Rb8 Rc5 Rc8 Rf5 Rc5+ Ka6 Rh4 Re5 Nh5 Rd5 Ng3 Re5 Qb8 d8R Rg4 Rf8 Qd8 Rg1 h1R b7+ Kb8 Rg2 h2 Rf5 Rg1 Rd5 h1R Rh2 Rh4 Re5 Rh5 Rh4 Rc8 Kb5 Qd7+ Kb6 Rd8 Kc5 Ka7 b8N Ka8 Kb6 Qd5 Bh3 Rc1 Bd7 Qd4+ Rc5 Qb4+ Bb5 Qd2 Nh3 Re5 Rd5 Re7 Rdh5 Rc7 Nhg5 Rc5
RB1k1n2/qR1N2N1/2BB1pN1/2Q1Bb2/Knb1bb1r/4rp2/Q1R3R1/Q6r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kd2 h5 Kc3 a5 Kb3 d5 c4 f3 g4 d4 e4 h4 b6 d3 g6 h3 g5 f6 e5 d2 g7 h2 b7 Ne7 g8Q Rh3 g6 Bf5 c6 Nd5 e6 Bd3 e7 Rh7 c5 Qc8 g7 Ra7 c7 Nb4 c6 Rh3 Na3 Rh6 Nh3 Nc2 Nc4 Rg6 Ne5 Qf5 Nd7 Ra8 Nf4 Nd4+ Ka4 Qd5 b4 Bc4 b5 Qf7 b6 Na6 b8B Rh6 b7 Rh4 Ng6 Ne6 Bb2 Nb4 Be5 Ra7 Rg1 h1B Rb1 Bg2 Rb2 Ra6 Qa1 Bh3 Rg2 d1B+ Rb3 Bf5 c8Q+ Nd8 c7 Bdc2 Bd3 Re6 Be4 B2d3 Bc6 Bde4 Bd6 Re5 Qh7 Re6 g8R Qg7 Qh6 Re5 Qd2 Qh7 Ka3 a4 Qda2 Qf7 Rbb2 Re6 Rg7 Re5 Rh7 Bh6 Rbc2 Bg5 Ba7 Bf4 b8B Re6 Bd4 Qg7 B4e5 Qf7 Qa6 Qg7 c8R Qf7 Kb2 a3+ Kc3 Qg7 Qa7 Qf7 Qc5 Qg7 Q2b1 a2 Kb2 Qf7 Ka3 Qg7 Ka4 Qf7 Qab2 a1R+ Q1a2 Rg1 Qba1 Rgh1 Ba7 Qg7 Ra8 Qf7 Bab8 Qg7 Bb2 Re5 Bc3 Ne6 Bb2 Nf8 Bd4 Kf7 e8N Ke6 Bc3 Qe7 Ng7+ Kf7 Nh5+ Ke8 Rf7 Kd8 Ng7 Rd5 Bce5 Rd3 Nb6 Qb7 Rc7 Re3 Nd7 Qb6 Rb7 Qa7+
2b1NN2/1R2Q3/1Rp1b1Nb/1Q1r3B/1Q2nq2/3QrnN1/R1p1K1Bb/Bnk5 w - - 0 1 illegal: No possible last move
3R2nk/R1B1qn2/1QpQNN2/pB6/Bb1b2Q1/1r2N3/1B4bK/bRn2rR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 g5 Kg3 a5 b4 f5 h4 Kf7 d4 Kg7 e4 f4+ Kh2 f3 e6 f2 e5 Na6 e7 Bb7 e8N+ Kh7 d6 Bd5 h5 Bg7 e6 Bf8 e7 Nh6 b6 Rb8 b7 Qd7 b5 Bf3 d5 Nf7 h6 Rd8 b8B Ne5 b6 Nb4 b7 Nbc6 Bb2 Bg2 Nh3 Qe6 d7 Nf7 d6 Qe4 Bb5 f1N+ Kg1 g3 Nc3 g4 Rb1 Rg8 Ng5+ Kh8 h7 Nd2 Ne6 Nb3 Nf6 Nc1 e8B Ne7 Ncd5 Bg7 Qe2 Rf8 Ne3 Ng8 Qd1 Rc8 d8Q Qb4 d7 Qe7 Nh5 Bc3 Nf6 Bb4 Qd6 Bc6 Qd4 g2 Kh2 Bd5 Rg1 g3+ Kh3 Bc6 Qg4 Be4 Ba7 Ra8 b8Q Bf3 Qb7 Rb8 Qb6 Rb7 Bb8 Bd5 Re1 g1B Ba4 Bf2 Rg1 g2 Kh2 Bfe1 Qd6 Bbc3 Qb6 Bd4 Qd6 Rb3 Bb5 Bb4 Qb6 Qc5 Qe7 Bdc3 d8R Ba8 Qd7 Qe7 Qdd6 Bf3 Ba4 Be4 Beb5 c6 Bc7 Bd4 Ba3 Ba1 Bb2 Ne5 Ne8 Rf1 Nf6 Nf7 Ng5 Kg7 h8R Bd5 Rh6 Be4 Rg6+ Kh8 Ne6 Bd5 Rg7 Be4 Rh1 g1B+ Kg3+ Bh7 Bb8 Ng5 Kg2 Qd7 Nc4 Bf2 Kh2 Bd4 Ne3 Be4 Rg1 Bg2 Re7 Qe8 Ra7 Nf7 Bc7 Qe7
3q1r1B/p2R2p1/k1rBR1K1/3nbn2/3r2b1/3N1Q1N/BRN3rR/2Q1QbQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 h4 Kb6 b4 c4 d4 c3 d6 f6 h6 c2 d7 f3 Kf5 f2 e4 Na6 h5 Qe8 h7 Rb8 d5 Qe5+ Kg6 f5 d8R f4 d6 f3 h6 Bb7 d7 Qd4 e5 Bc8 e6 Nc5 e7 Nb7 e8Q Qc5 Rh2 Nd6 Ba3 c1R Bc4 f1R Qee1 f2 Nh3 Nf6 Qf3 Qe3 Ba2 Rg8 h8Q Nc4 h7 Kc7 b6+ Kd6 b7 Kc7 b5 Kb6 Bd6 Qd4 Na3 Qb2 Nc2 Ra8 b8N Qe5 Na6 Qd5 Nc5 Ne3 Nd3 Nf5 Re8 Kb7 b6 Ka6 d8R Bd7 b7 Rg1+ Qg4 f1B b8Q Qa5 Qb2 Nd5 Re6 Rg2 Rb1 Rd1 Qb3 Rc8 Rb2 Rc6 Qg5 Bc8 Rd7 Qd8 Qbc3 Be7 Qd4 Rdd2 Qg1 Rf8 Qgg3 Bg5 Qf3 Rd1 Qg8 Rdd2 h8B Bf4+ Qg4 Bg3 Qf3 Rd1 Qh7 Rdd2 Qh4 Be5+ Qg5 Rd1 Ndf2 Rd4 Nd3 Ng3 Q5e3 Nf5+ Qfg3 Qe8+ Rf7 Nf6 Q3c1 Nd5 Rf6 Qd8 Qg4 Ng3 Qf3 Be6 Rd7 Bg4 Re6 Nf5
3r4/q4N1R/1rQQ1Q2/qpN2b1n/1bnr1B1p/k2rR2Q/1N3R2/B2BN1K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 Kf2 Kd6 a4 Kc5 g4 h5 d4+ Kb6 a5+ Ka7 f6 c5 a6 Kb6 f5 e5 f7 e4 d6 b3 g6 c4 g5 Kb5 a7 Kb4 d5 b5 g7 c3 d7 c2 d6 b2 f6 Rh7 g6 Qa5 d8Q Bb7 d7 Bd5 Nf3 e3+ Kg1 e2 Ne1 Ne7 g8Q Rh6 g7 Nbc6 Qh7 Bf3 g8R Nc8 Bf4 c1R Nd2 b1R Ra3 Bd6 f8N Bd5 f7 Qc7 Nc4 N8e7 Re3 Ng6 Qf6 Rb3 d8N Na5 Nb2 Nc4 Nfe6 Ka3 f8B Bb4 Nf7 Rd8 a8Q+ Qa7 Nc5 Be4 Bg7 Bf5 Qdd6 Rd1 Qac6 Rd4 Rf8 Rbd3 Rh2 Nce5 Rf2 Nc4 Rh8 h4 Bg2 Nge5 Bf3 Ng4 Qg8 Rg6 Rh7 Rh6 Qgf8 Rg6 Qfe6 Nf6+ Bg4 Nh5 Qf6 Rb8 Qfc8 Rb6 Bh8 Rg8 Bg7 Rd8 Bf3 Be4 Qh3 Bf5 Be4 Rc3 Bc2 Rcd3 Bd1 Re8 Ng2 Ba5 Nba4 Rd8 Qh6 Rd5 Ba1 Rd4 Qhf6 Bc3 Nb2 e1Q+ Rf1 Qd2 Rf2 Ba5 Ne1 Qb4 Qg7 Qa4 Qg5 Bb4 Qgf6 Q4a5
rr2QR2/bQBqRr2/K3R2B/pb2pk2/rN4N1/n6B/NN6/1n1qQ2R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 e5 Kc4 h5 g4 c5 b4 a6 d4 h3 f4 h2 d6 h4 b6 h3 g5 Bh6 b7 Qf6 d5 Bf8 g6 Qd8 f6 Ra7 f7 Qb6 f5 Qc6 g7 Be7 f8Q Qb6 f6 Rh7 b5 Nh6 g8N Ra8 f7 Qc6 b6 Rh8 Qe1 Nf5 Nc3 Nd4 Nf3 Nb5 Na2 Nc3 Bh6 Nb1 Nd2 Bh4 Qg7 Bf2 Qg2 Qc7 f8R Nc6 b8B Na7 b7 Nb5 Rf6 Rh7 Re6 Rf7 Qg7 Qc6 Bc7 a5 b8R Ba6 Rf8 Bb7 Rg1 h1R Rg4 h2 Bh3 Bh4 Qh7 Rg1 Rg7 h1R Qhe4 Bd8 Rh7 Rg4 Nf6+ Kc8 Rg7 Qd7 Rh7 Rg8 Ng4 Bc6 Qf3 Rf1 Qfe4 R7f4 Rhe7 Rh8 Nb3 Rf7 Nbc1 R1f4 Nd3 Rg8 Nb2 Rh8 Kb3 c4+ Ka4 c3 Qb4 c2 Qbe4 c1Q Q4b4 Qe8 d7+ Kb7 d6 Rg8 Bb8 Bb6 d8Q+ Qd7 Qe8 Ba7 Qbe4 Kb6 Bc7+ Kc5 Bg2 Qc8 d7 Rh8 d8N Qd7 Bh3 N5a3+ Kb3 Qcd2 Qb4+ Kd5 Qb7 Nc3 Rb1 Ra4 Rd1 Ncb1 Rc1 Kd4 Rd1 Bh1 Nc6+ Kd5 Ncb4+ Kd4 Qe2 Bc6 Rh1 Rg8 Qf1 Ke4 Qd1 Kf5 Qe1 Nc2 Kc4 Qd1 Qb6 Nca3+ Kc5 Bb8 Qb7 Rh8 Kb6 Ba7+ Ka6 Nc4 Qec8 Nca3 Qd8 Rf6 Rff7 Re8 Rf8 Rf7 Nc1 Q7d4 Qd7 Reb8 Qe8 Qd7 Nca2 Bb5+
Q2nQ2K/1b1BN2r/1p1r2R1/R4N1k/1q1bQ1rN/5Nrq/n4B1p/B2Q3R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Kg4 c5 Kh5 c4 g4 b3 f4 c3 d4 h6 a4 b6 a5 e4 g6+ Kf6 g7 c2 a6 e3 d6 e2 a7 e1R d5 b2 d7 Bb4 g5+ Kf7 f6 Bd6 f5 Ba3 d6 Qe7 d8N+ Ke8 Kg6 h5 f7+ Kd7 f8B Ke8 f6 h4 f7+ Kd7 Bb5+ Nc6 Be3 h3 Ne6 c1R Nd4 Rc4 Nd2 h2 Bf2 Qe3 Nf5 Ke6 d7 Nf6 g8N b1Q Kg7 Rh6 d8Q Bb2 g6 Bb7 Nge7 Qh3 Qd4 Re8 a8Q Ne4 Ra5 Nc3 Kg8 Nd8 g7 Re3 Qf4 Kf6 Bd7 Rg6 Qd4+ Kg5 Qd3 Qg3 Kh8 Rg4 Qe4 Rd6 g8R+ Kh5 Bg7 Qh3 f8Q Na2 Bc3 Rf3 Rg6 Rfg3 Qg8 Rf8 Bcd4 Rf7 Qe8 Rg7 Bf6 Ba3 Ba1 Qb2 Nc4 Bb4 Nh4+ Bc5 Ne3 Qb4 N3f5 Bd4 Ngf3 Rh7+
3rq1b1/k1BBqB2/1p1NN1Q1/b4pQ1/1n1b2K1/N3rQR1/1b2QB2/2R3Rn w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 a4 c5 h4 Kc7 e4 Kb6 d4 c4 h6 c3 h7 b3 a5+ Ka7 a6 c2 h5 b2 d6 b6 d5 g4 e6 Bb7 d7 Qe7 d8Q Nh6 e5 Qa3+ Nf3 Qa2 d6 Bg7 e7 Nd7 e8Q Ng8 e6 Bd5 h6 Nc5 d7 Be4 e7 Bd5 Rg1 Bd4 Bb5 Qb3 Qe2 Nd3 Be3 c1B Bf2 Qb4 Ng5 Bc3 Na3 b1Q Ne6 B1b2 Kh4 Qf1 Rc1 g3+ Kg5 Qc5 Kg4 g2 Ba4 Ba5 Bb3 Rc8 Bc4 Ka8 a7 Nb4 Ba2 Kb7 a8B+ Kb8 Bc6 Qe1 Qf8 Qb5 e8N Ne7 Nd6 Nf5 Qg5 Ka7 d8B Ng3 Bd7 Rc3 Bc7 Nh1 Bc4 Rg8 h8Q Re3 h7 f6 Qhg7 Qc6 h8R Qb5 Qfe7 Rd8 Q7g6 Qc6 Rh3 Qc5 Ng7 Bg8 Bf7 Qe5 Qe8 Qe7 Qf3 Qe2 Ne6 Qb5 Rgf1 g1B Rg3 Qc6 Bc8 Qa8 Qeb5 Qc6 Qbe2 Qce8 Bd7 Rb3 Be1 Bgd4 Rfg1 Re3 Bf2 f5+
2RB4/6qQ/1pQbNQ2/RB2p1Bq/NQ1R3n/1qRKrr2/1q1n4/k1N4b w - - 0 1 illegal: No possible last move, all moves rejected
r1b4k/n1Rp1R1b/1QB1Nn2/3K2p1/1QRB2p1/b2Q3B/3Q1n1r/qN1NN3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 g5 Ke3 a5 Kd4 f5 h4 Kf7 e4 Kg7 b4 f4 c4 f3 h5 f2 e6 a4 e7 a3 e8N+ Kh7 e5 a2 c6 Bd6 h6 Be7 c7 Ra7 b6 Nf6 b5 Nd5 b7 Ba3 e6 Ra8 c5 Ra5 c6 Qe7 b6 Kg8 h7+ Kf8 Nd6 Kg7 Ne4 Ra7 Qd2 Nb4 Nec3 Ra4 Nd1 Qf8 e7 Qf3 e8N+ Kg6 Ng7 Qf7 Bh3 f1B Nf3 Bg2 Bb2 Qe8 Ne1 Kh6 Rf1 Qe2 Rf7 Qa6 Ne6 Re8 h8Q+ Kg6 Qe5 Qa5 Qee3 Rh8 Qed3+ Be4 Kc4 Kh6 Bd4 Qa8 Kc5 Bh7 Kd6 Nd5+ Ke5 Na6 b8Q Nc5 b7 Ne4 Qa7 Ra5 b8Q Nf2 Qbb4 Nf6+ Qac5 Ra4 Qcb6 Qa7 Nbc3 Ra6 Rc1 a1N Nb1 Nb3 Rc4 Na5 Kd6 Qb8 Ke5 Ra8 Kd6 Qa7 Ke5 Bb7 c8B Qa6 c7 Nc6+ Kd6 Na7 Ke5 Qa4 Kd6 Ba6 Bb7 Qa5 Bc6 Bc8 Q4c5 Qc3 Qbb4 Qa1 Qcb6 Bb7 c8R Ba6 Nf4 Bb7 Rc7 Bc8 Rf8 Kg7 Rf7+ Kg8 Ne6 Bf5 Bhg2 Rh2 Bh3 Kh8 Ke5 Bg6 Kd6 Bh7 Ke5 Ne8 Kd5+ Nf6+
3k1bRB/1R3bRN/qN1n4/qNp4r/2Q3K1/2B2p2/1NpbQQrB/3B2n1 w - - 0 1 illegal: No possible last move
1N2RR2/3nQ1B1/Q1B1nr1R/Np1qN2R/K1B1Q3/1p1Q4/2rb2p1/k1r2bq1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 f4 Kf6 d4 e5 Kd2 c5 Kc2 g5 Kb3 g4 h4 e4 d6 e3 h6 g3 d7 b6 h5 e2 d5 e1Q d6 g2 h7 Qe2 a5 c4+ Ka4 b3 a6 c3 a7 c2 h6 Qf3 Qd4+ Kf7 f6 Ke6 f5+ Kf7 Bb2 c1R Nd2 Rc6 Qe4 Qd3 Re1 Rc5 Nc4 Nc6 Nf3 Rb5 Rh5 Ne5 Na5 Qd5 Bc4 Ng6 Re3 Qe8 d8Q Rc5+ d7 Nf4 Ba1 Rb8 a8B Ba6 Bc6 Ne6 Qc8 Bd6 d8Q Bf4 Re1 Bd2 Ne5+ Kf8 f7 Nf6 Rf1 Nd7 Qb7 Rg8 h8R Rc8 h7 Kg7 f8N Qe7 Rfh1 Kf6 Rh6+ Rg6 R1h5 Rc7 Qe8 Qf7 Rg8 Rc8 h8Q+ Qg7 Qh7 Qh8 Bd3 Rc2 Bc4 Qg7 Qd8+ Qe7 Qdc7 Qec5 Qd6 Qg1 Qa8 Qdc5 Qdd3 Qd5 Nf7+ Rc3 B4b5 Bc1 Qdd4+ Qe5 Bd5 Bd2 Bf1 Bc4 Qa6 Rc1 Bc3 Rc5 Bc6 Nb8 Ba1 Bd3 Rh8 R5c2 Nd7+ Ke7 Qdc4 Qd5 Rc8 Be2 Bh8 Bd3 Nfe5+ Kd6 f6 Be2 f7 Rf6 f8R Bd3 Qa8 Be2 Rce8 Bd3 Nc5 Nd7 Na6 Be2 Qc3 Bc4 Nb8 Kc5 Qh3 Bd3 Qa6 Be2 Qeg6 Kd4 Qe7 Bc4 Qh4+ Kc3 Bg7 Kb2 Qgg3 Ka1 Qe4 Be2 Qh3 Bf3 Bfb5 Be2 Bc4 Bf1 Qhd3 b5+
2N4k/1Q1q3B/1pr1p3/BN1bqNKp/1N3RQ1/1nr5/2BR4/RRnQb2q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 Kg7 Kf4 c5 d4 h5 a4 c4 g4 b3 f6+ Kh7 a5 c3 d6 b2 f7 e6 g6+ Kg7 g5 b6 d7 c2 d5 Rh7 a6 Nf6 a7 Na6 d6 Rh6 Bd3 Ng8 Nf3 Qc7 d8N Kh8 Nc3 b1Q Bd2 c1Q Nd4 Nb8 Nf5 Be7 f8N Nc6 Nb5 Bd7 Bc2 Qa3 Ba5 Rc8 a8Q Nb8 Qb7 Qd3 Nc6 Rh7 Nb4 Nf6 g7+ Kg8 Ng6 Bf8 Nge7+ Kf7 f3 Ne4 g6+ Kf6 g8Q Nc3 g7 Na2 Rg1 Nc1 Rh1 Qcc3 Rg1 Bc6 d7 Be4 d8R Rc6 Nc8 Na6 Rf1 Qd7 Re1 Qf7 Rd2 Qe5+ Ke3 Bc5+ Nfd4 Na2 Qc1 Rh6 f4 Qe8 f5 Qd7 Rf1 Rg6 Qe1 Qed5 Kf4 Rg3 Qe2 Qb2 Rfb1 Nc1 Qd1 Be7 Qh8 Kf7 f6 Nc5 g8B+ Kf8 f7 Bh4 Qe5 N5b3 Qf5 Kg7 f8R Kh8 Qfg4 Rh3 Rf6 Be1 Bh7 Qc3 Rf7 Qcc5 Rf5 Rc3 Kg5 Bh1 Bd3 Qcd6 Bc2 Qg2 Rff2 Qe5+ Nf5 Qh3 Rf1 Bd5 Rf4 Qh1
2Qr4/n1RBKRpr/p2BQB2/2N2p2/N2Bqq2/1n2b1n1/b2kN3/1R3Q1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 f5 e4 c5 d4 f3 d6 c4 d7 a6 Ke6 f2 b6 c3 d5 c2 b7 Bd6 e5 Ne7 h6 Nbc6 b8N Qb6 h5 Bc7 h7 Kb3 h6 Qa7 d6 Rg8 h8Q Rf8 h7 Nd5 Ne2 Ba5 Be3 Ndb4 Bd4 Nd5 Nbc3 Rd8 Rb1 Ncb4 Na4 Ne3 Ke7 Qb7 e6 Qb6 Qe1 Rg8 d8Q c1N d7 Bb7 Qc8 Ra7 d8B Bg2+ Nd7 Ra8 Ndc5+ Kc2 b3 Nba2 b4 Qb8 b5 Bd2 b6 Nb4 b7 Qe5 b8B Bd5 Bd6 Ba2 Rh6 Qd5 Rf6 Nb3 Rf7 Qe4 Bg2 Bc1 Qf1 Kd2 Bh1 Rf8 Qg8 Rb8 h8Q Ra8 Qh6 Rb8 Qgh7 Rh8 Bf3 Ra8 Qhh1 Rb8 Q7h6 Rh7 Qg6 Qf4 Ba8 Qe4 Bc6 Ra8 Bd7 Nc6+ Kf8 Na7 e7 Rb8 e8R Ra8 B8f6 Rb8 Qfg2 f1Q Ree7 Qff4 Qgf1 Ra8 Be8 Rb8 Rc7 Ra8 Bd7 Rb8 Qff3 Nf1 Qgh6 Ng3 Qff1 Qd3 Ke7 Qe4+ Bfe5 Ra8 Qe6 Rb8 Bf6 Ra8 Qb7 Rd8 Qc6 Kc2 Qb7 Be3 Qc8 Kd2
NN2rNkB/q1n1qpn1/7B/2NR3B/p1Kb4/1p3QR1/1Qr1rB1R/1b5Q w - - 0 1 illegal: No proof kernel
n3R2B/4BBKp/1nrQQ3/npN4n/pR1Q2rR/q1NbR1b1/QN1k4/8 w - - 0 1 illegal: No possible last move
R1N1Rr2/1bQRn3/K1NpbBp1/1p4p1/8/1nQ1B2Q/1bq2rR1/Nk2NB2 w - - 0 1 illegal: No possible last move
3BNRN1/qk3K2/1b1p3B/Rb1p2n1/5b1B/R2b2rN/R7/2NrNNnQ w - - 0 1 legal: proof: e4 g5 a4 b5 axb5 f5 exf5 c5 d4 g4 dxc5 e6 Bc4 g3 Bd5 exd5 hxg3 Qf6 g4 Qb6 g5 Qd8 Kd2 a5 Ke3 h5 Kd4 a4 Ke5 a3 c4 h4 g4 a2 b4 h3 f4 h2 c6 Rh3 c7 Ne7 Kf6 d6 b6 Kd7 b5 Rh6+ g6 Ba6 c8N Qe8 c5 Rh4 g7 Rh8 g8N Ng6 c6+ Kd8 g5 Rh4 c7+ Kd7 b7 Qd8+ Nce7 Qc8 b6 Bc4 Nc6 Rh8 Ne5+ Ke8 Nef3 Kd7 Nh3 Kc6 Kf7 Be7 f6 Ra7 f5 Be2 Ne1 Ra4 Nd2 Bf8 Nf1 Nd7 b8N+ Kb7 Na6 Rhh4 Nb4 Rg4 Nbd3 Ne7 g6 Bh6 g7 Ra7 Bg5 Rf4 Nc1 Ra5 Bh4 Qa8 c8R Ra3 Rc5 Rd4 Ra5 Qa7 Rg1 h1B Rg2 Ng6 Rg3 Kb8 b7 Nc5 Rg2 Kc7 b8B+ Kb7 Bc7 Rg3 Bd8 Nf4 Rf2 Bg5 Rf3 Bb5 Rfa3 Be4 Qf3 Ne2 Qh1 Qa6 Kg6 Kb8 f7 Kb7 f8B Bf4+ Kf7 Qa7 Nf6 Ne6 g8N Bed3 Ne8 Ng1 f6 Ng5+ Ke7 Bh7 f7 Rd1 Bh6 Bc2 f8R Bcd3 Rb1 a1B Rb2 Qb6 Re2 Bd4 Rea2 Bc5 Kf6 Qa7 Kg7 Bb6 Kf6 Ne4+ Kf7 Ng5+
1NRN3k/4p1pn/2rR1N2/2p3Np/Kr3n1N/B1B1B2B/3rQ1n1/NqR5 w - - 0 1 illegal: No proof kernel forced: wxDB
1Kr2rr1/2RRN1n1/b1BB2R1/N5b1/2RBQnn1/1R4R1/1nbq2Bn/k4N2 w - - 0 1 illegal: No possible last move, all moves rejected
4bQNB/RR1K3N/B1N5/b1RnrN1R/8/1b1qnb2/1rBkrN2/q2Nn3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Kf4 d4+ Ke4 g4 e5+ d6 a5 f4 h5 b4 a4 f6 a3 f5 c6 b6 a2 g5 h3 g6 h2 b7 h4 d5 h3 b5 Rh6 b6 Qe7 g7 Rg6 f7 Qh4 f6 Qg5 Ba6 Rh6 Qf1 Qd2 Nc3+ Ke3 Bb2 Qe2 Nd1+ Kd2 Rc1 Ne7 g8B a1R d7 e4 Kd6 e3 d8R c5 Rd7 c4 Bh7 c3 Bc2 Nbc6 b8N Qd3 b7 Na5 Nc6 e2 b8R e1N Rbb7 Ra2 Nd4 Rh5 Nf5 Rb8 Rdc7 Bh6 f8N Bd7 f7 Be8 Nh7 Nc4+ Ke6 Bg5 f8N Ne3 d6 N7d5 d7 Bd8 Ng6 Rg5 Rc5 Ba5 d8N Rh5 Nc6 Rg5 Ba4 c2 Ra1 c1Q Bh8 Rc2 Ra2 Qa1 Nge7 Rb2 Bb3 Rg2 Bc2 Re2 Ng8 Rc8 Rc4 Rc7 Kd6 Re7 Rc5 Re5 Nf3+ Kc1 Nfg5 Kd2 Ne4+ Kc1 Nef2 Kd2 Rg1 h1B Rg5 h2 Rh5 Bf3 Ra3 Bg6 Kd7 h1B Qg2 Bf7 Qg7 Bg6 Qf8 Bhg2 Ra7 Bh1 Rb3 Be8+ Kd6 Bhg2 Rbb7 Bh3 Ng7 Be6 Nf5 Nb6+ Ke7 Bed5+ Kd6 Bb3+ Kc7 Nbd5+ Kc8 Bf7 Kd7 Be8+
KR1B1NbR/bB1rN1nb/4n1Q1/NRn5/8/r1B1N2N/q1B4r/N1k1r1n1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 a5 g4 e5+ d6 h5 d4 c6 b4 h3 b6 a4 g5 h2 b5 a3 g6 a2 b7 h4 d5 h3 b6 Qf6 g7 Qh6 f6 Ra4 f5 Be7 f7 Qh5 f8N Qh7 f6 Bf5 f7 Nf6 g8B Nh5 Nd2+ Ke3 Ba6 e4 Ne6 Ng7 f8N Ra3 Rb1 a1N Nc7 Nc2 Bb2 Nd4 Qc2 Bd8 d7 Nde6+ Kd6 c5 Bc3 c4 Rb5 Qh5 Bh7 Qf7 Bg6 Rh7 Nb3 Bg5 d8N Nd7 Kc6 Ndc5 b8N Bf6 b7 Bd4 Ba5 c3 d6 Qg8 Qg2 c2 d7 c1N Na1 Ne2 Nd5+ Kd3 Kb6 e3 Ka7 Qf7 Ka8 Qg8 Bb6 Kd2 Nbc6 Kc1 b8R Bb1 Bc2 Qf7 Nf3+ Ng1 Nce7 e2 Ndc6 e1R Ng5 Qf2 d8B Qe2 Ba4 Qa2 Na5 Bg6 Bc2 Bf7 Qf2 Bg8 Bb7 Ne4 Bb1 Rh4 Bbc7 Ba7 Qe2 N4c5 Be5 Rd4 Ne3 Rd7 Qg4 Ne2 Rg1 h1B Bc2 h2 Bc3 Be4 Rg3 h1R Rh3 Bd3 Rh8 Bdh7 Nh3 Rh2 Qg6 Ng1
NKB3r1/B2nr1b1/4qbB1/Q1rN4/4R1NB/BB1R4/2n2nkp/qR3bN1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 h5 g4 a5 b4 f6 g6 f3 g7 c4 b6 f2 b5 c3 b7 a4 b6 a3 g5 c2 g6 h4 Nc3 a2 Qd2 h3 Ba3+ Kd7 d6 Ke6 d5+ Kd7 Re1 h2 Bh3+ f5+ Ke5 a1B e4 Na6 b8N+ Ke8 b7 f1R Nd7 c1Q b8B f4 Ba7 f3 Nb6 Rb8 Na8 Nf6 g8B f2 g7 Nc5 d7+ Ke7 Bf5 Qa5 d8R Ba6 Bc8 Rb7 Bf7 Qb2 g8B Qa2 Bg6 Bg7 B8f7 Rg8 Rd7+ Kf8 Kd6 Nd3 e5 Rb5 e6 Rc5 Re4 Re1 Qg5 f1N Qh5 Nf2 Qe5 Bh6 e7+ Kg7 Qg5 Ne3 e8N+ Kh8 Rd8 Nd7 Nf6 Kg7 Ng4 Bf1 Qh5 Nc2 Qf5 Rb5 Qh5 Qa4 Kc7 Rc5+ Kb7 Q2c4 d6 Qe6 Nd5 Bf6 Qg5 Qd4 Qd2 Qa1 Qa5 Nf8 d7 Re2 Bh5 Kh7 Kb8 Bhg7 Nge3 Kh6 Bhg6 Kg5 Ng4 Kh4 Nf4 Qa6 Bb3 Kg3 Nd5 Qb1 Rde8 Qc6 d8B Qa1 Rd4 Re5 Rd3+ Kg2 Re6 Re1 Re4 Qe6 Be7 Bc3 Bg5 Bcf6 Bh4 Nd7+ Kb7 Nd1 Nh3 Nf2 Red4 Qf7 Rf4 Re7 Re4 Be2 Rb1 Qe6 Ng1 Nf8+ Kb8 Bf1 Bf7 Bb2 Bh5 Bbf6 Bg6 Nd7+
N3K3/BbBN3r/N2Br3/3n2qr/q4n1k/4BQ2/pqRRbN2/1B2R1bB w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 e5+ d6 a5 b4 h5 d4+ Kf6 f4 c6 g4 e4 g5+ Kg7 b6 h3 f6+ Kg6 d5 a4 f7 h2 b7 h4 f5+ Kh7 b5 h3 b6 a3 f6 Kg6 Be3 a2 Bd3 Bd7 Na3 Ra7 Qf3 Bf5 Re1 Bg4 Nb5 Kh5 g6 Ra3 g7 Ra4 Bb1 Rh7 Nc7 Ra6 Na8 Ne7 g8B Kh4 d7 Ng6+ d6 Nf4 Rc1 Qe8 d8B Be7 f8B Nd7+ Kd4 Qh5 b8N Qg5 b7 Nb6 d7 Nbd5 f7 c5+ Kc4 Rb6 Na6 Re6 Kb5 c4 b8B c3 Bdc7 c2 d8R Bc5 Bfd6 Bb6 Re1 c1Q f8N Qb2+ Kc6 Rh5 Kd7 Bc5 Bd4 e3 Ba7 e2 Be3 Bb6 Rc1 e1Q Rc2 Qeb4 Bh7 Bd4 Be4 Bc5 Be7 Qc4 Ke8 Qa4+ Nd7 Bb6 Ne2 Rh7 Re1 h1B Nc1 h2 Nd3 Bg2 Nf2 h1R Qd1 Be2 Qd3 Bgf1 Bg2 Rh2 Bh1 Bg2 Qf5 Kg3 Qe4 R2h5 Qf3+ Kh4 Rb8 Reh6 Bed6 Bc5 Rb4 Bb6 Rd4 Re6+ Be7 Bc5 Rdd2 Rd6 Bd4 Qab4 Qe4 Nb6 Ng4 Qa4 Bf8 Rf6 Bfd6 Bgf3 Qd3 Bb7 Qf3 Nbd5 Bg1 Bb4 Bgd4 Bc3 B4c5 Bd4 B5b6 Bg1 Be3 Rg6 Nf2 Re6+
krb4K/3B1Rr1/1qRnqq1p/n1b3BN/7R/1r2BN2/4N3/BBN1b1BQ w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 Kc7 f4 Kb7 g4 h6 d4 a4 b4 a3 b6 a2 f6 e6 b5 h3 f5 c4 f7 h2 f6 c3 g5 c2 g6 Bd7 g7 Ba3 f8N Qe8 f7 Bc5 d6 Qc8 d5 Ra7 Ne2 Nf6 g8B Qc7 Nh7 Ra6 f8R Qc6 Nd2 Ra5 Nf3 Ra7 Bh3 Bg1 Be3 c1Q Rf7 Qa3 Rc1 Qc8 Rc6 a1R Nc1 Nh5 Nf6 Qc7 Bh7 Nf4 Bb1 Qb4 Nh5 Re8 Kf6 e5 Kg7 Bc8 d7 e4 d8N+ Ka8 d6 Qc4 d7 R1a3 Ne6 Ng2 d8B Nh4 Nef4 Rb3 Bd7 Qe6 Bg5 Nf5+ Kh7 Rd8 Nfe2 Nd6 Qf1 Rg8 Qg2 Rg7+ Kh8 Rb7 Qf1 Na6 Qd1 Rb8 Qf1 Nc5 b7+ Ka7 Qd1 Qb6 Qd5 Rb4 Qd1 Nb3 Qe1 Na5 Qd1 Ra8 b8B+ Kb7 Qf1 Rb3 Ba7 Rb8 Qg2 Ka8 Qh3 Qb7 Bad4 Qa7 Ba1 Qd4 b6 Qdf6 Bef4 Bd4 Be3 Bc5 Bg1 e3 b7+ Ka7 Ned4 e2 B1e3 e1B Nde2 Ra8 b8B+ Kb7 Ba7 Rb8 Rg1 h1Q Rg4 Ka8 Rh4 Qf1 Qh1 Qg2 Bg1 Qf2 Bb6 Ba3 Bbe3 Bc5 Bef4 Q2d4 Bd2 Qb4 Bde3 Qb6
N4qBN/1rBqRR2/2nN2nr/N1NQ4/p7/3KB1bb/B3q2R/3kNnn1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 f4 Kd6 b4 h5 d4 a5 g4 e5 b6 c5 f6 a4 g5 c4 f7 c3 b5 h3 g6 e4 g7 c2 b7 h2 f5 h4 f6 e3 b6 h3 Nc3 Qe8 Nb5+ Kd7 d6 Kc6 d7 Kd5 d8N Kc4 d5 Kb3 d6 Na6 b8N Rh4 d7 Rc4 b7 Nh6 g8B Ra7 Nd6 Ng4 Nf3 Nb4 Ne1 Nc6 Qd5 Nge5 Na6 Ng6 b8N Rb7 Kd3 e2 Be3 c1Q Rb1+ Qb2 Ne6 Bg7 d8N Qd7 f8R Bh6 f7 Bf4 Ra1 Bg3 Nac7 Qg7 Re8 Qf8 Nc5+ Kb2 Re7 Rh4 Na8 Rh6 Ra2+ Kb1 Rg1 h1Q Rg2 h2 Rf2 Qf3 Rc2 Na7 Nbc6 h1N Na5 Nc6 Bh3 Qh5 Be6 Qf3 Rd2 Kc1 Rb2+ Kd1 Ra2 Qfe8 f8B Qef7 Bg7 Qf8 N8f7 Qh5 Nh8 Qh2 Rff7 Qf2 Ng2 e1N+ Kc4+ Qd2 Be5 Nf3 Ne1 Ng1 B5f4 Nf2 Rc2 Ng4 Rb2 Nh2 Be5 Nd4 Rc2 Qf2 Kd3 Nf1 B5f4 Qf3 Rh2 Qh5 Qe4 Nc6 Ba2 Qde8 Qd5 Bh3 Nb5 Qg4 Bc7 Qed7 Nd6 Qe2+
r3Nkq1/4b2B/2b2rnp/Bn1R2Nr/R1K3qR/1BR2RQ1/4N2N/R2nn3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Kd3 a5 g4 c5 f4 h3 b4 a4 g5 h2 g6 h6 b6 a3 g7 a2 d6 Ra4 b7 Qh4 d7+ Kf7 d8R Be7 b5 Bf8 b6 Qf2 f6 Qg2 f5 Ra6 Nf3 Ra5 Qb3+ Be6 Rd4 Rb5 Nc3 Qg5 Rb1 a1Q Ra4 Qa2 Ra1 Nc6 b8R Qg1 b7 Nd8 Rc8 Bd5 b8N Qb2 Na6 Be6 Nc7 Qg5 Be2 Qg3 Bd1 Qa2 Ba3 Rb6 Bb4 Ne7 Ba5 Qg4 Bc2 Kg8 Qa3 Nb7 f7+ Kh7 g8B+ Kg7 Qb3 Ng6 Bh7 Be7 f8N Bd5 f6+ Kf7 Qa3 Nd6 Nfe6 Nb5 Qb3 Rd8 Ne8 Rc6 Rc7 Ra8 Neg5+ Kf8 f7 e4+ Ke3 c4 d4 Qf5 Nf6 Kg7 f8R Rb6 Ke2 e3 Qa3 Be4 d5 Qg4 d6 Qb3 Rfc8 Bb7 Ne8+ Kf8 d7 Qg2+ Kd1 e2+ Kd2 e1N+ Ne2 Rf6 d8R c3+ Ke3 Qf7 Rd5 Qg4 Rcc4 Qg7 Rf4 Qg8 Rcc4 Bc6 Qb3 Ng2+ Kd3 Ne3 Bd1 c2 Qc3 c1R Bb3 Nc2 Qe1 Rb1 Qg3 Rf1 Rc3 Ne1+ Kc4 Rg1 Qf2 Rg3 Qg2 Rh3 Qg1 Rh5 Qg3 Qd7 Rf1 h1N Rh4 Nf2 Nh2 Nd1 Rff3 Qg4+
B2Q1rb1/N4n2/Nn1B2R1/2Rb3q/nR1Rr3/b1B1BK1N/pB1b4/3Bk2n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 g4 Kd6 d4 c5 f4 e5 b4 a5 f6 h5 g5 c4 b6 h3 f5 h4 g6 a4 g7 a3 b7 e4 b5 a2 f7 c3 b6 c2 f6 e3 Kf3 h2 Nh3 e2 Bg2 e1B Nc3 Ra7 Bb2 c1N Rg1 h1B Nb5+ Kd7 d6 Kc6 d7 Ne7 g8B Bd2 d5+ Kc5 d6 Qe8 d8R Kc4 d7 Ra6 Na7 Nb3 Rc1+ Kd3 Rc5 Nbc6 b8R Ra5 b7 Nd5 Bc3 Bd6 f8B Nb6 f7 Ra4 Bh6 Re4 f8B Be7 Be6 Qh5+ Bg4 Rg8 Be3 Ne5+ Kf2 Nf7 Kf3 Bg5 Bd6 Rf8 Ra8 Be7 b8N Bb7 Na6 Bd5 Rdb8 Bc4 d8B Be6 Rb7 Bc4 Rac8 Bd5 Rc4 Nc5 Rb4 Be6 Rd7 Nca4 Rc5 Bb3 B8c7 Be6 Bde5+ Bd5 Bcd6 Bb3 Ng5 h3 Bg7 h2 Nh3 Nh6+ Bgf6 Bg8 Bb2 Nf7 Bfc3 Re6 Kf2 Re5 Ba8 Bd5 Rd8 Re4 Kf3 Qe5 Bh5 h1N Rg6 Qh2 Qe2+ Kc2 Qd3+ Kd1 Qd4 Ke1 Qf6 Re8 Rd7 Bf8 Qd8 Qe5 Bg4 Qh5 Bh2 Qf5+ Kg2 R4e7+ Re4 Re5 Bd1 Qg5+ Kf3 Bb3 Rc8 Ba3 Rc5 Rf8 Rb4 Re4 Rdd4 Bd5 Bd6 Qh5+
N2rRN1q/R3p2b/1nrbK3/R3n2Q/1B1n1R2/3B2kB/1b3N2/n2RbRN1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 a5 f4 c6 g4 h3 g5 h4 b6 h2 f6 a4 g6 h3 f5 a3 g7 a2 f7 Ra3 b5 Ra8 f6 Ba6 b7 Nh6 g8B Ng4 b6 Nd7 b8N Bd3 b7 Bc2 Bh7 Nb6 Na6 Bh6 f8R Bf4 b8R Ne3 Rb7 Rc8 Bhd3 c5+ Ke4 c4 f7 c3 Qh5 Rc5 Nc7 Rc6 Ra7 Bg3 Ra5 Be1 Na8 Qc8 Kf4 Qd8 Kg5 Ke5 Ba3 Qe8 Bb4 Qb8 Ba6 Bh7 Bad3 c2 Nc3 c1B Ne4 Bb2 Nf2 Nc2 Re8 Qc8 f8N Ba3 Rd1 a1B Ra7 Qd8 d6 B1b2 d7 Na1 Bg2 Qb8 d8R Qc8 Rd4 Qb8 Ba5 Bd6 Bb4 Qd8 Rf4 Qb8 Ne2 Qc8 Rf1 h1N Ng1 h2 Bh3 Ng3 Ra2 Nf5 Ra7 Bg8 Kg6 Bh7+ Kf7 h1N Rd8 Ng3 Re8 Ne4 Ra5+ Nc5 Ra7 Nab3 Rda1 Ncd7 R1a5+ Bc5 Bc2 Na1 d4+ Kd6 d5 Nd4 Bd3 Rg8 Bhf5 Ke5 d6 Qb8 Rh4 Qd8 Bg4+ Kf4 Bh3+ Kg3 Rf4 Nb8 d7 Bd6 Bb5 Qc8 d8R N8d7 Ba6 Rh8 Bd3 Ne5+ Kg7 Qe6 Ng6 Nb5 Be4 Rc7 Rg8 Bc5 Rd1 Nd4 Bd3 Rc6 Rc8 Re8 Nf8 Bd6 Rd8 Ned7 Rc8 Qe5+ Kf7 Qh8 Rd8 Nf3 Ke6 Nde5 Rdd7 Rec8 Rd8 Rb8 Re8 Rbc8 Ra3 Rd8 R3a5 Nd4+
b4b1K/n1N3NR/qR1B1k2/4RB2/r4Rr1/pqNQ2bp/3r3B/R3B1Rn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Ke4 h5 f4 a5 g4 c5 b4 c4 d4 c3 g5 c2 f6 h3 f5 a4 d6 h4 b6 h2 b5 a3 b7 Nd7 b8B Qe8 d5 Ra7 b6 Bg7 b7 Bf8 Nc3 Nb6 d7 Bh6 d8N+ Kf8 f7 Ke7 f8R Ra8 d6+ Kd7 g6 Nc4 f6 Nd2+ Kf5 e4 g7 e3 f7 e2 Kg6 e1Q Nge2 Ne4 Nd5 Bf4 Nc7 Qb4 Nc3 Nf2 Qd3 Bg3 Bd2 c1B Nde6 Ra4 Bh3 Qb3 Be1 Bh6 Bf5 Ne7+ Kf6 Rh7 g8R Nc6 Ng7+ Kd8 d7 h3 Rh8 Na7 Rg1 h1R Kg6 Ke7 d8R Rh2 Rd5 Bd7 Rb5 Nh1 Re5+ Kd8 Kf6 Rd2 Kg6 Be3 Kf6 Rhh4 Kg6 Rhd4 Kh7 Rg4 Kg8 Bd4 Rh7 Bc6 Kh8 Bg2 Rg8 Bc6 f8B Qee6 Bd6+ Kd7 Rf8 Bc5 Bg6 Qec4 Rf4 Qa6 Bf5+ Kd8 Nce6+ Kd7 Bbc7 Be4 b8R Ba8 Rb6 Bb4 Nh5+ Ke8 Nhg7+ Kf7 Bb8 Bc5 Nc7 Kf6 Bf8+ Bc6 Nce6 Rg6 Rc4 Bd5 Re2 Bh4 Bh2 Bb4 Rf4 Ba8 Re5 Bg3 Bc5 Rg4 Nc7+ Qe6 Bd4 Bd6 Bc5 Bf8 Bd6 Qb3
BR6/B1RrN1p1/nq1n3b/p2Qq1nN/1NR1N3/R2K1r2/bb2N1k1/3NB3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 b4 Kf6 h4 Ke5 f4+ Ke4 d4 a5 d6 c5 d5 e5 b6 g3 b5 g2 h5 c4 d7 c3 h6 c2 f6 Ra6 f7 Qe7 d8N Bf5 b7 Bg6 b6 Bh7 f5 Qc7 d6 Ne7 d7 Qc8 f6 Nec6 Rh4+ Kf5 Ra3 e4 Bd2 c1Q Nc3 e3 Kd3 e2 Be1 Rg8 Ne6 Qc7 d8N Qa1 Nf4 Qb2 Nh5 Qe7 Rc4 Na7 Nc6 Nb5 Nb4 Bg6 h7 Ra7 h8R Na6 b8R Qe5 b7 Nd6 Rh6 Be7 f8N Bf7 Ne6 Rf8 Ng5 Bd8 Rc7 Kg4 Nge4 Ba2 f7 Bf6 Qd2 Bg5 Nd1 Be3 Re6 Bh6 Ree7 Qb3+ Rc3 Qbe6 Rec7 Q6f6 R3c4 Qf2 Nf3 g1N Bg2 Nh3 Nd4 Ng5 Bf3+ Kh3 Bh1 Rd8 f8N Rd7 Ng6 Rf7 Ne7 Qff6 Bf2 e1B Ne2 Qg6 Bg3 Bf2 Bf3 Bd4 Be1 Bb2 Bh1 Nh7 Qg5 Kh2 Qf5 Ng5 Qe6 Rf4 Qd5 Kh3 Rf8 Qge6 b8B Rb7 Ba7 Rf3+ Ne3 Kh2 Rb8 Qg6 R7c5 Rd7 Rc7 Nb7 Bg2 Qb6 Bh1 Nd6 Bg2 Rf2 Nd1 Rf3+ Kd2 Nc8 Qd3 Nf7+ Ng5 Rg3 Ba8 Rf3 Qd5 Ncd6 Kc2 Kg2 Ne4 Ng5 Kd2 Rf5 Kd3 Rf3+
B3Nb1b/4Rb2/5n1n/2Kr2p1/rNQ2B1B/2R1pR1b/R3rN2/1NN1k1qN w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 b4 Ke4 f4 e5 h4 g5 h6 a5 f6 d3 f7 a4 b6 a3 b7 d2 b5 Ke3 h5 Kf2 f5 d6 h7 e4 h6 a2 b6 Ra5 f6 Re5 Rh3 Na6 b8N Bg7 f8N Bf5 f7 Nc7 b7 d5+ Kc5 Bg4 c4 Na8 Ng6 Bf8+ Ne7 Bc8 Ne2 Bd7 Bg2 Re6 Na6 d4 b8B d3 Nb4 Nc7 Qc2 d1R Bf4 d2 Nc1 Be8 Rc3 e3 Ba8 Bg7 f8R Qd3 Nf5 Ra6 Ng3 Ne7 Nh1+ Ke1 Rf7 Rf8 h8N Bc6 h7 Qd8 Ng6 Nf5 h8R Bd7 Re7 Ne8 Rh3 Nf6 Ne5 Ra4 Rf3 Nh6 Ng4 Bc8 Ngf2 Bh3 Bbd6 Qd7 Bg3 Qg4 Bh4 Qg1 Bf4 Rh8 Kb6 Bf8 c5 Rh7 c6 Rf7 c7 Rh7 Re8 Rd7 c8N Rd5 Nb3 Rc1 Nd6 d1B Re7 Be2 Kc6 Bc4 Ne8 Rcd1 Qd3 Rd2 Nc1 Re2 Qe4 Rd6+ Kc5 Bf7 Qc4 Rd7 Nd2 Rd8 Rb1 a1B Rb2 Rd7 Nb1 Rd6 Ra2 Rd7 Rca3 Be5 Rc3 Rd5+ Kc6 Nh7 Kb6 Bh8 Kc6 Nf6 Kb6 Rd4 Kc5 Rd5+
R3qqN1/R1r1Np2/NB3r2/1RN1k2B/8/2bB1bpR/3Rb2b/KnRQ1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 b4 Kd6 h4 c5 Rh3 a5 d4 g6 b6 g5 h6 f3 h5 a4 Ba6 Be7 Be2 f2+ Kd2 f1B Rha3 c4 Kc3 g4 Kb2 g3 h7 Bb7 b5 Bg2 h6 Qc7 e5+ Kd7 d6 Ke6 d5+ Kf5 d7 Bg5 d8N Ra6 d6 Bbe4 d7 Ra8 e6 Be3 e7 Nc6 e8B Qc8 b7 Kf6 b8N Nd4 b6 Qc6 b7 Bg6 Nd2 Ke5 Nb3 B6e4 Nh3 Ra6 Nf4 Nf6 Nh5 Nd5 Nf6 Bg1 Be3 c3+ Ka2 Rg8 h8R c2 h7 c1Q Bf2 Q1c3 Rc1 Q3c5 Ka1 Bh2 Ra2 Q5d6 Rd2 Rb6 Na6 Nf5 b8R Bd3 Rb7 Qb4 Ra7 Nc3 Bf3 Rb7 Bb6 Rg6 Rb2 Qe7 Nbc5 Nb1 Rg8 Rh6 h8R Rc7 Rh7 Rg6 Rh3 Ne3 Bh5 Nf1 Rf8 Qed6 Ng8 Rf6 Rb4 Be2 Rb2 Qb5 Nc6+ Kf5 d8R Bgf3 Bd7+ Kf4 Rfe8 Qf8 Nce7 Ke5 Bf5 Qd7 Rb5 a3 Ka2 Qc8 Rd2 Qd7 Rea8 Qde8 Ka1 a2 Kb2 a1B+ Ka2 Bc3 Bd3 Bb4 Ka1 Bc3+
RNb2K2/rpNQ3R/3b1p2/b2B4/3R3B/2bBqrnn/4B2R/qN1BB1k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 e5 dxc5 Rh6 fxe5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 a4 g6 c4 d4 h4 g3 e4 g2 h5 d3 a6 d2 h6 Qb6 Kg5 Nd7 a7 Bg7 c6 Ngf6 c5 Qb5 h7 Nd5 c7 Nf4 a5 Rb8 a8N Nb6 a6 Bf6+ Kh6 g5 c6 g4 a7 g3 Bd3 Qb2 Ra4 Rg8 h8B Nh5 Rh2 Nf4 Ne2 g1B Rd4 Bd7 c8B g2 c7 Be7 Bf6 Nh5 Bh4 f6 Qa4 d1Q Bd2 Ng7 Bde1 Bd6 Kh7 Ke7 e6 Nh5 e5 Rg3 Qc6 Rh3 Kg8 Qbd2 Qa4 Rf3 Qb5 Ke8 e7 Qe3 Qd5 Bh3 Be6 Ng3 c8B Qa4 Bg4 Qa1 Bce6 Bf2 Kg7 g1B Bg8 Rc8 Bh5+ Kd7 e8R Be6 Nc7 Ra8 Rb8 Bg4 e6+ Ke7 Qf5 Nd5 Bgf7 Nf4 Rh8 Nh3 Rh7 Rc8 a8R Rd8 Bd2 Be1 Ba5 Bc3 Bg8 Bb2 Be1 Bc3 Bgf7 Bdb4 Qb5 Ba5 Bg8 Rd5 Qa4 Kd6 e7 Kc5 e8B Be6 Kf8 Bc8 Qd7 Rd6 Bb3 Ra6 Bef7 Ra7 Bfd5 Bf2 Ra4 Bg1 Nd4 Bf2 Nc6 Bg1 Nb4 Kd4 Bbc4 Bf2 Nba6 Bg1 Rd2 Bh2 Nb8 Qf2 Bb3+ Ke3 Bd1 Qe2 Rb2 Qf2 Rd4 Qe2 Bd2+ Kf2 Be1+ Kg1 Ra2 Qe3 Re2 Nh1 Ra2 Be5 Rh2 Ng3 Bg4 Rf1 Bge2 Rf3 Rf7 Bf4 Rh7 Bd6+
bR2q1k1/pN1Nr1rn/1Bp1b1N1/4B1R1/B1b1R2b/3n1KN1/1R1q4/5QNN w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 g4 h5 f4 e5 b4 h3 d4 h4 d6 c6 b6 h2 d7 e4 g5 e3 g6+ Kg7 d5 h3 d6 Rh4 b7 Qb6 d8N Qa6+ b5 Ne7 d7 Qa5 b6 Qa6+ Kf3 e2 f6+ Kg8 g7 e1Q f5 Rb4 f7+ Kh7 g8N Rg4 f6 Rg7 Nh6 Rg5 Nc3 Nf5 Bb2 Kh8 Bb5 Rg7 Ra5 Nd6 Ba4 Ne8 Ng4 Qd2 Rg5 Be7 f8N Kg8 Qf1 Qc4 Nce2 Na6 b8N Qe6 b7 Nb4 Nf2 Nd3 Ng3 Qe5 Ng6 Qe6 Na6 Qe5 b8R Bb7 Nc5 Qe6 Rc8 Rb8 Be5 Ba8 Rc7 Rb7 Rc8 Rc7 Ndb7 Qf7 d8B Qe6 N1e2 Qd7 Rg1 h1B+ Rg2 h2 Rb8 Qc8 Ng1 Rd7 Bdc7 Bd8 Bb6 Rde7 Nfh3 Qe6 Nd7 Qf7 Kg4 Qf8 Re2 Bd5 Nf2 h1B Re4 Bg2 Nfh1 Bh3+ Kf3 Bhe6 Bc3 Bc4 f7+ Kh7 Bcd4 Nf6 Be5 Qe8 f8R Rgf7 Qb1 Rg7 Rf7 Kg8 Qf1 Nh7 Rff4 Ref7 Re2 Bf6 Rfe4 Re7 Rf2 Qc1 Rb2 Qd2 Rh5 Bh4 Rf5 Nf4 Rg5 Nd3
1B2bb1R/n3N1bR/3R1BK1/R1p3RB/1N2pkr1/p1q3R1/2B4Q/2r1N1rn w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kf4 h5 g4 c5 d4 a5 b4 a4 b6 h4 b7 e6 b5 h3 g6 h2 g7 e3 b6 e2 g5 e1B g6 Ra5 Be2 Ra7 Qc2 Nd7 b8R e5+ Kf5 e4 f4 Bf2 b7 Qe8 Na3 Be7 Bb2 Ra8 Nf3 Beh4 Ne1 Rh6 Bh5 Ngf6 g8B Qf8 g7 Rh8 Kg6 Bfg3 f5 Nh7 f6 Bg5 f7 Qd8 f8R Be5 Rf5 Bh6 Rg5 Qf8 Qg2 Nb6 Nac2 Qf4 Nb4 Bd7 Rc8 Ra7 b8B+ Rc7 Rg1 h1R Qh2 Qe3 R1g3 Rg1 Be6 Bc6 g8N Bf8 Ne7 Qc3 Beg4 Beg7 Bd1 Bb5 Bc2 Nf6 Ra3 Ng4 Ba1 Kd7 d6 Ke6 d7 Nf2 d8R Nh1 Rd7 Bc6 Rcd8 Nc8 Re8 Rb7 Rc7 Na7 d5+ Kd6 Bb2 Rg8 Rec8 Qd3 Bf6 Qc3 Nbd3 Rb1 Nb4 Nb5 Ra1 Rc1 Ra7+ Nc7 Ra5 a3 Rb1 Kd7 d6 Ke6 d7 Nb5 d8R Na7 Rb3 Qc4 Rbd3 Qc3 Rc7 Be8+ Kh7 Bh6 Rg6 Ba4 Nec6 Kf5 R3d6 Be7 R6g4 Rg6 Rh8 Bef8 Re7 Rg8 Rgg7 Bb5 Re5+ Kf4 Ne7 Bc6 Rf7 Rg4 Rg5 Bb5 Kg6 Bd7 Rfh7 Bhg7 Nf5 Ba4 Ne7 Be8#
qbB2bN1/1R3bB1/4pq2/k7/rN1N3N/2p1R2K/RNN1pQB1/1r1n1n1R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 b4 c5 f4 Kc7 Kf2 Kb6 Kg3 h5 d6 a5 g6 e3 d5 a4 d7 a3 f5 c4 d6 c3 g7 a2 f6 e2 f7 h4+ Kh3 Bb7 g4 Ra4 g5 Qc8 g6 Nc6 Nf3 Rh5 Ne1 Qc7 d8N Re5 d7 Rc5 Na3 Ra8 Bg2 Ra7 Nd3 Rf5 Nb2 Rc5 Qe1 Rh5 Bh6 Qe5 Qf2+ Qd4 Nc2 Ra3 Ne6 Nf6 g8N Ne5 d8N Nc4 g7 Ne3 Nc6 Qd8 Ned4 Ra4 Bg5 Nfg4 Bf6 Nd1 Be5 Nh2 Bf6 Kc7 b6+ Kd7 b5 Nf1 N6b4 Bd5 b7 Kc7 Be5+ Kb6 b8R+ Ka5 b6 Qd6 b7 Qf6 Re8 Rh6 Rb1 a1B b8R Rg6 Rb7 Bb3 N2d3 Bb2 Ra1 Bc1 Ra2 Bf4 Nb2 Bg3 Nh6 Bf4 g8B Rg7 Bh7 Rg8 Bf5 Rh8 Kg4 h3 Ng8 h2 Bd7 Rh5 Bc8 Rg5+ Kh3 Rf5 Bd6 Rb5 Be5 Bg3 Bf4 Bd5 Bh6 Bb8 Bg7 e6 Rd8 Bf3 Rd5 Bh5 Re5 Bc5 f8N Bf7 Ng6 Bf8 Re3 Rb6 Nh4 Rb5 Rg1 h1Q+ Kg4 Qh2 Rh1 Qc7 Na6 Qcd8 Kh3 Rb3 Nab4 Qe8 N2d3 Rb1 Nb2 Qc6 Ndf5 Qa6 Nfd4 Qa8
1Qr3BB/Nrnr3K/N4bQN/B7/B1Nn1b1k/1NRr4/3Rb3/3rrN2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ba6 g5 Bc8 h5 Qd6 Ne2 Ng8 Ng1 Qg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 Kf2 a5 Kf3 c5 Ke4 e5 d4 Ke7 b4 h5 f6+ Kd6 f7 Ke7 g7 f3 g6 Kf6 b6 f2 b7 c4 b5 a4 b6 c3 d6 c2 d7 h4 d8B+ Be7 f8N h3 d5 h2 d6 a3 d7 a2 Qg4 Rh3 Bb2 c1B Ne2 Rh5 Ne6 Rh6 Ng3 Bd2 Bb5 f1R Nd4 Ra6 Nb3 Rc1 Na3 Nc6 b8N Ra7 b7 Rh7 Na6 Bf4 b8Q Rb7 Rd1 h1R Nf1 R1h3 Ba4 Rd3 Nc4 Nd4 Ba5 Rcc3 Rac1 a1R Qe6+ Kg5 d8N Bf6 Nc6 Kh4 Na7 Ne7 g8N Nd5 g7 Nc7 Nh6 Bd7 g8B Bb5 Rd2 Rd7 Rcc2 Rd1 Qc6 Nde6 Kf5 e4 Kg6 e3 Qe4 e2 Rc1 e1R Ba1 Rd8 Kh7 Nd4 Qg6 Rc8 Ne5 Rc6 Nc4 Rd6 Bb2 Nf3 Be5 Nd4 Rc3 Rd7+ Qf7 Be7 Bh8 Bf6 Qg7 Bc6 Qf7 Bf3 Qg7 Be2 Qf7 Rd5 Qg6 Rd7+
1k3BN1/n2nnr2/5N2/1N2NrqR/r1R1QQ2/rq2K3/1B4bN/n2N2QQ w - - 0 1 illegal: No possible last move, all moves rejected
1K1R1qQ1/1n3QB1/1b1rR3/2kN4/3r1q2/1p2bQ2/N1Bq2R1/RRnRQ2n w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 Ke2 Kd7 Kd3 Kd6 Ke4 b5 a4 h5 d4 c5 f6 e5 f7 b3 g7 c4 a5 c3 g6 b2 g5 b4 a6 c2 a7 b3 Ne2 h4 Nf4 h3 Nc3 b1N Bd3 h2 Bb2 c1B Qe1 Nc6 Bc2 Na3 Na2 Nge7 g8Q Nf5 g7 Rh3 g6 Be7 f8R Rd3 Qf7 Nb1 g8Q Be3 g7 Na5 Re8 Nb7 Rf1 Rc8 a8Q Rc4 Rg1 h1Q+ Rg2 Kc7 d6+ Kc6 d7 Bc5 Nd5 Qh2 Re6+ Kb5 Rg1 Qf8 d8R Bb6 Rd7 Nh6 Rf1 Ng4 Kf5 Nf2 Kf6 Qb8 Ke7 e4 Rdd6 Qh4+ Kd7 Nc3 Rg1 Qf8 Rg2 Bc5 Kc7 Ne2 Rd8 Nh1 Kb8 Bb6 Rb1 Nd6 Qab7 Qf2 Qf3 Qh4 Qbf7 Qf4 Ndb4 Qg4 Qd2 Qf4 Ra1 Nc3 Rgg1 Qe7 Rd7 Rc6 d5 Bec5 Qh7 e3 g8R e2 R8g2 e1Q Qhg8 Ne2 Bg7 Nb7+ d6 Be3 Rf1 Qf2 Rfb1 Nc1 Qe1 Rd5 Rc7 Kc5 d7 Qf8+ d8R Re5 Rd7 Re4+ Be5 Rc4 Rd1 Qd2 Nd5 Rd6 Bg7 Rd4
B1b1nr2/5Nn1/pB3Q1R/2rB4/2nnb1n1/B2NB3/RK4RN/1NR2b1k w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 h3 f5 Ra3 g5 Ra4 f4 Ra1 Qf6 h4 Qf5 gxf5 g4 Nc3 Bh6 Nb1 Bg5 hxg5 Kf7 Ra4 Ke7 Ra1 Ke8 Qc2 Kf7 Kd1 h5 b4 c5 d4 g3 e4 g2 d6 a6 d5 c4 f6 Kg6 e5+ Bf5 d7 c3 d8N f2 d6 h4 Ra2 Kh5 b6 Kg4 e6 Kg3 f7 h3 f8B h2 d7 f3 b5 Be4 g6 Bf5 e7 Rh6 e8R Rh3 g7 Rh5 b7 Be6 b6 Re5 Nf7 Ne7 d8B Nd7 b8R Nf6 b7 Nf5 Qb2 c2+ Kd2 Rd5+ Kc3 Ra5 Bg5 c1N Ba3 Nb3 Rc8 Nd2 b8N Rd5 Rc4 Rc5 Nc6 Bd7 Be2 f1N Nce5 f2 Nd3 N1e3 Bb6 f1B Rg8 Rf8 Bf3 Bc8 Ba8 Ne8 Nf3 g1N Bf4+ Kg2 Bh6 Ng4 Be3 Nf2 Kc2 Ne2 Qf6 Ned4+ Kb2 Nh4 Rc1 Nhf5 Rh8 Ng4 Rh6 Be2 Rhe1 h1B Rc2 Bf1 Rec1 Kg3 Nh2 Be4 g8B Kg2 Nd6 Kh1 Bgd5 Nfg7 Nf7 N2f3 Re2 Nd2 Rg2 Nc4+
n3bB2/2N2b1k/1R1p1b1N/4nNK1/q2Q1QNn/7N/1qR1BR2/1n1Nb1R1 w - - 0 1 legal: proof: g4 h5 a4 c5 e4 a5 h4 f5 gxf5 b5 axb5 g5 f4 g4 d4 cxd4 f6 Rh7 e5 Rg7 f5 Rg5 hxg5 Qc7 Ke2 Kd8 Kf2 Ra6 f7 Rf6 exf6 Qb6 Bd3 Kc7 Ke1 Kd6 Bf1 Qd8 Kd2 Ke5 b4 d6 c4 e6 b6 g3 b7 d3 Ke3 h4 g6 a4 g7 h3 b5 h2 c5 g2 b6 a3 c6 d2 c7 a2 Be2 Ne7 g8N Nbc6 b8R Ba6 c8N Qd7 b7 Na5 Nh6 Nec6 Nh3 g1N Ne7 Bb5 Nc3 Nf3 Rg1 Bg7 f8N h1B f7 Kf6 Kf4 Nce5 Nfg6 Nac4 f8N Bg2 Rc8 Nb6 b8R Na8 Rb6 Nh4 Qa4 d1N Qd4 Bgc6 Rb1 a1Q Rb2 Bd5 Rd2 Nb2 Nd1 Na4 Rcc2 Nc3 Bb2 Bh8 Bc1 Kg7 Kg5 Qa2 Bb2 Qe8 Qe3 Ng4 Bd3 e5 Rf2 e4 Ne5 Bb7 Be2 Nb1 Ne6+ Kh7 f6 Bd5 f7 Bdc4 Bd4 Qb2 f8Q Qc6 Qff4 Qd7 Nd8 Bf7 Nef5 Qa7 Qd2 Bbe8 Ne6 Qa4 Nc7 Bg7 Nc4 Bh8 Bg7 Ne5 Bf8 Bg7 Qd4 e3 Bd3 e2 Nce3 e1B Neg4 Bh8 Be2 Bf6+
k2N4/1R2r2b/1B1QQ3/2N4n/nQq1R1pB/q1Q1pKBQ/Q3rB1q/1r6 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 h5 e4 f5 exf5 b4 g4 b3 g5 e6 Bh3 Bb7 Bg4 hxg4 axb3 Bd6 b4 Be7 b5 Bf6 gxf6 Bc8 Ke2 Kd7 d4 a5 h4 c5 b4 Kc7 f7 Kb7 f8Q a4 b6 g6 d6 c4 f6 a3 d5 g3 f7 a2 d7 g2 b5 c3 d6 c2 h5 e5 f5 e4 f6 Ne7 h6 Ra4 h7 Ng8 Qg7 Qf8 d8B Ra3 d7 Rc3 Nh3 g1R Qd6 Ka8 b7+ Ka7 b6+ Ka6 Nf4 Rc6 Ne6 Nh6 Nc3 Nf5 Rh4 Qe8 f8Q Qe7 f7 Rg4 Qfg8 Qe8 f8Q Rc7 Rb1 a1Q Be3 c1Q Qfe7 Rg2+ Bf2 e3 Re4 Qaa3 Na4 Qc4+ Kf3 Ng3 Qc3 Nh5 Qgf7 Rg8 h8Q Rg7 Qh6 Qh8 Qee8 Rg1 Bdh4 g5 d8B Nd7 b8Q Nc5 b7+ Rc6 Rb2 Rb1 Bb6 Qh7 Qfg8 Re7 Nd8 Bf5 Qef7 Qh8 Qfe6 Bh7 Qh3 Qe5 Qh6e6 Qh2 Rb5 Qd4 Qa2 Qc4 Qge6 Rc8 Qb4 Rc6 Qbc8 Rcc7 b8B+ Rb7 Nb2 Na4 Nd3 Re1 Qcc5 Re2 B8c7 Rb8 Qc3 Rb7 Q5b4 Rb8 Qdd4 Rb7 Bcg3 Rb8 Qdd6 Rbb7 Ba5+ Ka7 Nc5 Rb8 Rb7+ Ka8 Rc7 Rb6 Rb7 Rb5 Qbb2 Rb4 Bb6 Rb5 Qbd2 Rb2 Qb4 Rb1 Qdc3 g4+
3k2B1/n2q4/1r1bQ1B1/NRpq2r1/p1K5/2N5/RqnR1N2/1QNN1NRn w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 Bd7 b3 Nc6 Ba3 Nd4 Bd6 Nc6 Bf4 gxf4 h3 Nb8 g5 Be6 Ra4 Bf7 Ra3 Bh5 Ra1 Bg4 hxg4 Qc8 Ke2 Qd7 Ke1 Qd8 Ke2 a5 Kd3 h5 b4 e5 d6 c5 f7+ Kd7 g6 a4 b6 f3 g5 h4 f6 e4+ Kc4 e3 d4 e2 g7 e1Q d5 h3 g6 h2 b5 f2 b7 Na6 b8R Rh6 b6 Qa5 b7 Qc8 Ra2 Qe1 Nf3 Ra7 Rg1 h1Q Qb3 Nc7 Nc3 Qh5 Bd3 f1N Nd2 Qee8 Nd1 Nh2 Nf1 Be7 f8N+ Kd8 d7 Ne6 f7 Ra6 Nh7 Bf6 f8N Ng4 Ng5 Nf2 Nh3 Ng4 Nhf2 Nf4 Ne6+ Ke7 d8R Qh2 Nd4 Qec6 Ne2 Rh8 Nc1 Rb6 d6+ Ke6 d7 Ke7 Be4 Rh5 Qe3 Rg5 Bc2+ Kd6 Qe6+ Kc7 Bb1 Ne7 g8N Bg7 Nf6 Ne2 N6e4 Nd4 Nec3 Bf8 g7 Nc2 g8B Qf3 Re8 Qf7 d8N Qd7 Nc6 Nc8 Na5 Bd6 Rf8 Na7 Rfd8 Ne1 Bg6 Nc2 Rf8 Qf3 Rf4 Qh8 Rd4 Qhf6 Rd2 Q3f5 Nb1 Qb2 Nbc3 Qf3 Re8 Qfc6 Re7 Kd8 b8Q+ Qdc8 Qb7 Qf3 Rc7 Qd7 Qbe4 Qg2 Rb7 Nce3+ Kd3 Ra6 Rb5 Rb6 Nh3 Nf2+ Ke2 Qc6 Qb1 Nh1+ Kd3 Nc2 Nhf2 Qd7 Kc4 Qd5+
8/1nB1bRNN/R4KQ1/rRN1Bb1p/1b1n4/R1b4r/N4pR1/knR4Q w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 g4 Bb4 h4 Kd7 hxg5 Ba3 f4 Bc5 g6 Qf6 g5 Ke8 Bh3 Qe5 fxe5 Bf8 Bf5 exf5 Kf2 Kd7 Kg3 c5 Kf4 a5 d4 h5 b4 f6 e4 c4 b6 c3 e6+ Kd6 b7 a4 e5+ Ke7 b5 c2 d6+ Ke8 e7 Kd7 e8R a3 g7 a2 b6 Kc6 e6 Kb5 e7 Kc4 d5 Kb3 d7 Ra6 d8R Be6 g6 Bf7 d6 Ra7 d7 Ra6 Nc3 Ra8 Bb2 Ra3 Nf3 Na6 b8R Nh6 g8R Nc5 b7 Be6 g7 Rh7 Rc1 a1B Na2 Ra5 Bd4 Bc3 Be5 Kb2 Rf1 Ra3 Ra8 Rb3 b8B Nb7 Ng5 Rh8 Kf3 f4 Ke4 f3 Bbc7 f2 Ra3 Nf5 Rda8 Nd4 d8N f5+ Kf4 Bb4 Nh7 Rh3 Kg5 f4 R8a6 f3 Kf6 Bf5 Ne6 Bc3 Nc5 Bb4 Ra1 c1B Rb8 Bcd2 e8N Bdc3 Rc1 Bd6 Rf8 Rg8 Rg1 f1N Rf7 f2 Rg2 Nd2 Qh1 Rh8 g8Q Nb1 Qg3 Ka1 Ng7 Rd8 Qg6 Bf8 Qh6 Rd5 Qg6 Bd6 Na4 Ra5 Nc5 Nd8 Rbb6 Nb7 Rb5 Be7+
2QnR2q/2B4p/RRBrQ3/n7/Rn3BpK/3R2Bb/r6p/krNR1N2 w - - 0 1 illegal: Other
2N3QQ/R3p2q/8/r3N1nB/1pqRNN1n/Nkp1r2R/NB3q2/2K2nR1 w - - 0 1 legal: proof: c4 a5 f4 f5 b4 axb4 e4 d5 exf5 Nh6 cxd5 Qd6 f6 Ng8 f5 Qd7 g3 Qd8 Bd3 g5 Bc4 g4 Bf1 Be6 Bh3 Bf7 Bf1 Bh6 h3 Bf4 gxf4 g3 Bb2 Bh5 Bc1 Bg4 hxg4 Ra6 Qc2 Ra4 Qd1 Ra8 a4 Kd7 d4 Kd6 Kd2 c5 a5 b5 f7 h5 f8Q b3 f6 g2 g5 c4 f5 h4 g6 b4 g7 h3 f7 b2 a6 h2 a7 Rh5 f6 Nh6 g8N Nd7 Be2 Re5 Na3 b1Q Bb2 Qg6 Kc1 c3 Bh5 Nc5 Qb3 Na4 Ne2 Ng4 Rg1 Rb8 a8N h1Q Nb6 Re6 Nc8+ Kd7 d6 Kc6 d7 Ne3 d5+ Kc5 d6 Qb6 d8N Qh2 d7 Nd5 Nc6 Rb7 d8R Qhc7 Ne5 Ne3 Rd4 Nf1 Qg7 Qe4 f8R Ra7 f7 Ra5 Qh8 Qh7 Nf6 Qba7 Rg8 Qab6 Rh1 g1N f8N Nf3 Rh3 Nh4 Rg1 Qcc6 Nfg6 Qa7 Nec4 Re3 Nce5 Qe6 Ngf4 Qc4 Nb1 Kb5 Ne4 Nc5 Ra2 Ne6 Na3+ Ka6 Ra1 Ng5 Ra2 Qd3 Qbg8 Qc4 Kc2 Qb6 Nc1 Qbc5 Ra1 Qb6 Na2 Qbc5 Nb1 Kb5 Na3+ Ka4 Kc1 Kb3 Rd7 Qd6 Ra7 Nd2 Kd1 Qd3 Rc1 Qdd5 Rc2 Qd6 Kc1 Nf1 Rd2 Qd3 Rd1 Qe2 Rd4 Qf2
3kn3/2rq3n/Kb3bB1/qQ4bR/4rNB1/3nb1N1/1NNNQ1b1/2B1N1BR w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 c5 Kd3 h5 Kc4 a5 f4 e5 b4 e4 g4 a4 d4 e3 g5 a3 g6 a2 b6 h3 Kb5 h2 g7 e2 f6 e1B b7 c4 f5 h4 d6 c3 d7+ Kf7 d5 c2 d6 h3 Qe2 Bg3 Nd2 Be7 Ngf3 Bh4 Ne1 Nc6 b8Q Qc7 d8B Ke8 f7+ Kd7 f8N+ Ke8 f6 Bg5 d7+ Kf7 Ne6 Qb7+ Bb6 Nh6 d8N+ Ke8 g8B Qd7 Nf7 Ra7 Bh7 Bc5 Bg6 Rc7 Ne5+ Nf7 Nf4 Kd8 N5d3 Rh4 Nh5 Re4 Nb2 Nd4+ Ka5 Nb5 Ng3 Nbd6 b5 Bge3 Qb7 Bcd4 Ka6 Ng5 f7 Nh7 f8N Ne8 Rb1 a1B Ne6+ Ke7 Ba7 Bb6 Nf4 Kd8 Bg2 Bf2 Bf3 Bfe3 Rg1 h1N Bg4 Nf2 Rh1 Nd3 Rh2 Bbd4 Bc5 Bf6 b6 Bg5 Rh1 Bd4 Rh2 Bdf6 Rh1 h2 Bg1 Bd4 Nbc4 Bf2 Rb5 Baf6 Nb2 B2d4 Nh3 Bge3 Rh5 Bc5 Nf4 Bcd4 Ka5 Bc5 Qc6 Bb7 Qb5 Bc6 b7 Bb6+ Ka6 Bd5 b8N Ba8 Bf2 Bd5 Rg1 h1Q Rf1 Qh4 Rh1 Qg5 Bg1 Rec4 Qa5 Bg2 Qb5 Re4 Nc6+ Kc8 Nd4 Kd8 Na4 Qe5 Ba3 c1B Nb2 Bg5 Ndc2 Bed4 Nb1 Bce3 Nd2 Qed5 Na4 Bh8 Bc1 Bhf6 Nb2 Qe5 R1h2 Qc3 Rh1 Qa5+
1Q1BN1kr/2RbnqBN/5qQn/q1n5/8/1R1r2bB/1B1n2rB/1Q2KB1Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Rh3 h5 d4 a5 g4 c5 f4 e5 b4 e4 Qb3 e3 f6 c4 g5 a4 b6 c3 g6+ Ke8 f7+ Ke7 b5 a3 g7 c2 b7 a2 b6 Ra4 d6+ Kf6 Qd5 Ra5 d7 Ke7 f5 Ra8 Na3 Ra5 Nb5 Ra3 Nc7 Rc3 Ne8 Rb3 Nf3 Nh6 g8B Nc6 b8B Qc7 b7 Qa5 Rb1 a1Q Ng5 Rc3 Rf3 h3 Nh7 h4 Rb4 h2 Rc4 h1Q f6+ Kd8 Rh3 Bd6 f8Q Be5 Qfd6 Qf3+ Ke1 e2 f7 Qb2 Qg6 Ke7 Kd2 e1N Qde4 Qbb6 d5 Nd3 Rc5 Qc7 Bb2 Qf6 d6+ Ke6 d8Q c1N Qeg2 Nb3+ Ke2 Qe7 d7 Qf8 Bd6 Ne7 b8Q Bf4 Qdc7 Nd2 Rf3 h3 Qca7 Qd8 Qa1 h2 Qb1 Qa5 d8B h1R Rc7 Rg1 Qh1 Nc5 Ke1 Rg2 Be5 Bd7 Rd3 Rc2 Rb3 Rc3 Bd6 Rd3 Bde5 Be3 Bh2 Qg7 Bc1 Bf4 f8B+ Ke5 Bd5 Qg8 Be4 Ke6 Bg7 Bd6 Bb2 Be5 Qg4+ Kf7 Bf5 Qf8 Qe4 Kg8 Bh3 Q8f7 Qg6 Bg3+
3Q2R1/r1qBRB1B/R4q1k/q1b2nb1/3rQ1n1/qN1N1B1K/7B/n2b1RB1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 g4 Kf7 Kg2 Kg6 d4 a5 e4 h5 b4 c5 b6 a4 e5 a3 b7 h4 e6 a2 b5 f3+ Kh3 f2 e7 f4 e8B+ Kh7 b6 f3 d6 c4 d7 c3 d5 c2 g6+ Kg7 g5 Na6 b8B Rh5 b7 Qb6 d6 Nc7 Qd5 Qa6 Be3 c1B Be2 Qc4 Nd2 Ra7 Qe4 Nd5 Nb3 Nge7 Bb6 Nf5 d8Q Rh8 d7 Nde3 Bh2 Qc7 b8R Bc5 Rb7 Ng4 Bd1 Rh5 Ne2 Bd2 Nf4 f1Q+ Ng2 f2 Bf3 Qc4 Nf4 Qc1 Rf1 Qa3 Nd3 Rh7 Bf7 Ra4 Ra7 Rd4 Ra6 Bb7 Rae1 a1N Re2 Bc6 Re3 Ba4 Be8 Kf8 Ba7 Re7 g7+ Kg8 Re2 Kh7 g6+ Kh6 g8B Bg5 Bh7 Rg7 Bb6 Re7 g7 Rf7 Na5 Bd1 g8B Rg7 Nb3 Re7 Bgf7 Qa5 Rg1 f1Q+ Bg2 Qff4 Rf1 Qfe5 Bf3 Qf6 Ba7 Qa3 Qb8 Qca5 d8R Rb7 Bd7 Qc7 Bb6 Ra7 Rg8 Qa5 Qd5 Qa3 Re7 Qa5 Kg2 Qa3 Qd8 h3+ Kg1 Qa5 Qe4 Qa3 Bf4 Rd5+ Nf2 Bd4 Bg2 Be3 Bc5 Qca5 Bf3 h2+ Kg2 Bd4 Nd3 Bg1 Bcd6 Bc5 Be3 Rd4 Kh3 Qb6 Rf2 h1Q+ Bh2 Qe1 Rf1 Qc7 Beg1 Qea5
K2B1Qn1/1nBq1rnr/2qqr3/NkN1RN1B/N6Q/1b3qB1/4Nb2/N1R5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kc4 c5 g4 a5 b4 e5 f4 e4 d4 e3 b6 h3 Kb5 c4 g5 a4 g6 h2 g7 e2 f6 e1Q f7 c3 d6 c2 b7 h4 f5 a3 d5 a2 f6 h3 Bf4 c1R Be2 Qf1 Bg3 Rc4 Nd2 Rh6 Bh5 Ne7 g8N Ra7 Ne2 Rd4 Qa4 Na6 b8B Qg1 Bc7 Qb1 Kb6+ Nc6 b5 Qf1 Re1 a1Q Ne7 Rd3 Qh4 Rh7 Nb3 Rc3 Nf5 Qa4 Na1 Qf3 Rhg1 Be7 f8Q h1N f7 Nc5 Rgf1 Nb7 Rc1 Nba5 Rfe1 Rb7+ Ka6 h2 b6 Rc4 Ng7 Re4 Nf5 Rb8+ b7 Re6 Kb6 Bg5 Ka6 Ne7 Ka7 Bd2 Nf4 Ng8 Re5 Be1 Ne2 Qag4 Qh6 Qg6 f8N+ Ke8 Nd7 Bf2+ Nb6 Qd7 Qe3 Rf7 Na4 Rh7 Qc5 Ra8+ Kb6 Ra7 b8N Nb7 Na6 Rf7 Qcd4 Qh6 N6c5 Qd2 Qb4 Qd1 Bf4 Ng3 Qa3 h1Q Qb4 Ne4 Bg3 Ng5 Qbf4 Re7 Qb4 Ne6 Qbf4 Ng7 Qh6 Qd8 d7+ Kf8 Qd6 Ra6+ Kb5 Qe3 Qe4 Ne8 Qe6 Rh7 d6 Ref7 Qh4 Ng7 Qg6 Qh6 Qe6 Qf3 Qd5 Qe7 d8N Ke8 Nc6 Be6 Na5 Qd4 Ncb3 Kd7 Qc5 Ra8 Kb6 Re8 Ka7 Qdc3 Nd2 Bb3 Ne4 Qhd2 Qg4 Qe6 Qh4 Ree7 Ka8 Qed5 Nc4 Re6 Qa3 Kc6 d7 Qcc2 d8B Kb5 Na5 Qc6 Qf8 Qd1 Nec5 Qdd7 Nc2 Q1d3 Na1 Q3d6
1r3R2/b1Kb1B2/n1NB2nN/bk1q1Q2/r2B1r2/1NR4B/1RRnb2q/N4R2 w - - 0 1 illegal: No possible last move
BRBK4/NNR1n1rr/2N5/rNQ2b2/1qr3q1/r2NB3/2n1RB1b/1k4rR w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 Ke6 h4 f7 h3 d6 c3 g7 c2 f5 Kb3 b6 Qc7 b7 Rh7 f6 Ra5 Nc3 Na6 b8R+ Bb7 d8N Rg5 d7 Rg3 Be3 Rg2 Qh5 c1Q Nc6 Kc2 d8N Rg3 b4 Rg6 b5 Qg3 Kd7 e5 b6 e4 Nb5 Qb1 Nf3 Qb4 Nca7 Bd6 f8B Ne7 g8B Rgg7 Be6 Qg4 Re1 a1R f7 Ra3 Re2+ Kb1 Ne5 Bc8+ Ke8 Bc7 b7 Bd6 Bd5 Bf5 Nd3 Bc7 Bf2 e3 Rc8 Bg3 b8N Bd6 Nbc6 Bb8 Rg1 h1R Nb7 h2 Kd8 Be5 Rc7 Ra5 Rc2 e2 Bh3+ e1R Re2 Rc1 Rge1 Rg1 Be4 Rg5 Bh6 h1R f8R Rgg7 Bhe3 Bh2 Rg8 Rg3 Rd1 Rhg1 Re8 R1g2 Rh1 Rgg1 Bd5 Rc4 Bdg2 Be4 Qc5 Bf5 Rh8 Qb2 Bf3 Nb4 Rg8 Nc2 Bd5 Qh4 Bf3 Qb4 Bfg2 Bg6 Bc8 Qg4 Bc1 Ra2 Nde5 Qa4 Nba5 Rb3 Bf5 Rf3 Kd7 Qh3 Nb4 Rh8 Rb8 Ng8+ Kd8 Rhh7 Bc8 Ne7 Bh6 Rb3 Bhe3 Qg4 Nbd3 Qb4 Ba8 Bf5 Nb7 Ra5 Nec6 Rba3
4b1Qn/2n1bq1b/rBb1Q1Q1/R3n3/1k2B1rR/3rRR1Q/1NR2R2/2n2KN1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 g5 e5 b6 a5 b5 a4 f6 a3 b7 h3 f7 h4 f5 a2 g6 c4 f6 c3 b6 e4 g7 h2 Qe2 e3 Na3 h3 Bg2 c2 Kf1 Qe7 Nc4+ Kd7 d6 Qe5 d5 Be7 f8R Ra4 f7 Nh6 g8Q Qg7 Be4 Na6 b8R Nc7 b7 Ra3 Qh5 Rd3 Qg6 Qh7 Bb2 c1N Bd4 Qg7 Nb2 e2+ Ke1 Qf6 Bb6 Rh7 Ra8 Rg7 b8Q Ba6 Qb7 Bb5 Qa6 Qf5 Rb1 a1R Qa3 Qe6 Ra5 Bc6 Kf2 e1N Kf1 Nf3 Rc8 Ne5 f8R Ba4 Rf2 Nhf7 Rf8 Nh8 R8f3 Qf7 Rc2 Na2 Re1 Nc1 Re3 Bb5 Qh6 Rg4 Qgg6 Kc8 d7+ Kb7 d8R Be8 Qad6 Raa3 Qde6 Ra1 Rac5 Ka6 d6 Ra4 d7 Ra5 Rc6 Kb5 Ra8 Kb4 d8Q Ra1 Rcf2 Ra6 Ne2 Qh7 Rc2 Qf7 Rg1 h1B Rgg3 h2 Rh3 Bb5 Qdg8 Be8 Ng1 Bg2+ Ke1 h1B Rh4 Rg3 Qh3 Rg4 Qe6 Bf1 Qhg6 Be2 Rc6 Bd1 Kf1 Ba4 Rcc2 Bad7 Qc6 Bf5 Qge6 Bh7 Qeg6 Ra1 Ra5 Ra4 Qce6 Ra2 Rac5 Ra6 Ra5 Nd7 Bb7 Nd5 Rg3 Ne5 Ba8 Be4 Rgf3 Nc7 Bb7 B4c6 Ba8 Ba4 Be4 Bac6
nB2R2N/2bQNr2/2r2k1N/r3nBN1/K7/RQ5n/N1Q1Q2q/N1nb2rb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 f4 h5 b4 e5 d4 a5 Kd2 c5 Kc2 a4 d6 e4 f6 c4 f5 c3 b6 h3 b5 h4 d5 h2 g5 h3 d7 e3 b7 e2 d6 e1R b6 a3 Kb3 c2 Bd3 a2 Nf3 Rh5 Nfd2 Rh8 Qe2 Rd1 Nc3 Rh4 Re1 Nh6 g6+ Kg8 f7+ Kg7 f6+ Kh8 Bf5 Bg7 f8N h1B f7 h2 Nh7 Bf3 f8N h1N Ng5 Nc6 b8Q Nf2 b7 Qc7 d8N Rf4 d7 Be5 Ndf7+ Kg7 d8Q Na7 Qd7 Nh3 Nh8+ Kf6 g7 Nf7 Nfg6 Nb5 Ne7 Bh1 Qa7 Rf2 Qc5 Ra6 b8Q Rc6 Ka4 Ba6 Ba3 c1N Nb3 Qd6 Qcc4 Nc7 Bc5 Bc8 Ba7 Na8 Qbc7 Bf4 Bb8 Ne5 Qcd3 Ba6 Qdc2 Bc4 Qb6 Bf7 Qbb5 Bh5 Qd5 Rf1 Qdb5 Rg1 Qb4 Rd3 Qb6 Rf3 g8N+ Kg7 Nh6 Kf6 Rb1 a1R+ Na2 Qd4+ Qb4 Qf2 Qa3 Qh2 Rb2 Rb1 Na1 Bg3 Rb6 Rb5 Qab3 Rc5 Ra6 Rf2 Qf1 Bd1 Qfe2 Ra5+ Kb4 Rc5 Be4 Ng4 Nef5 Nb6 Qed2 Na8 Ra3 Bc7 Ka4 Ke5 Re3 Rb5 Qe2 Rff1 Nd4 Rf8 Ndf5 Rf7 Bd3+ Kf6 Re8 Rbc5 Ne7 Ne5 Bf5 Ra5+
7N/N2nKb2/BN1BRq2/1R4r1/R5b1/N3Rnbr/p2kqQr1/B2Bn2N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 a5 g4 e5+ d6 h5 d4 c6 b4 h3 b6 a4 g5 h2 b5 a3 g6 h4 b7 h3 g7 Ra5 d5 Ra6 f6 Rh7 f7 Rh6 b6 Be6 f5 Qf6 Bb2 Ke3 Qd2+ Ke4 Qf2 Qg5 f6 Qg3 Ne2 Be7 f8B Kd3 f7 Bh4 d7 e4 d8N e3 d6 Ne7 g8B Ng6 d7 Qg2 Kd6 c5 Ng3+ e2 Nc6 c4 d8R c3 Re8 c2 Na7 Bg4 Re6 Nd7 b8R Ra5 b7 c1R Rg1 Rh7 Nh1 Rg5 Rbe8 Qe4 b8N Nge5 Ke7 Nf3 Ra2 Rhg7 Ba1 Bg3 Rb2 a2 Na3 Qc6 Rb5 Rc3 Bh7+ Kd2 Bc2 R7g6 Bd1 Qd6+ Kd8 Qd4 Bd6 Qf6+ R8e7 Rb3 f8N Rg7 Ng6 Rc3 Qc5 e1N Nh8 R7g6 Ke8 Rg7 Re3 Rd3 R7e6 Rc3 Nf2 h1Q Bc4 Qh2 Nh1 Qe2 Rg2 Nde5 Nd7 h2 Nb6 Nd7 Rf2 Nd4 Rf4 Ndf3 Bd3 R7g6 Ra4 Rb3 Nf2 h1B Qf5 Bg2 Nh1 B2h3 Be4 Bh5 Bb7 B3g4 Ba6 Rd3 Re7 Rg7+ Kd8 Bf7 Qf4 Nh4 Qf2 Nhf3 Re6 Rh7 Re3 Rh2 Re6 Rg2 Re3 Qd4 R7e6 Qf6+ Be7 Nd4 R3e5 Bh4 Re4 Rh3 Re3 Qf4 Bd6 Ndf3 Ke7 Bg3 Qf1 Qd4 Qf2 Qf6+
4nBr1/bBnrK1N1/1Qq2RbR/2R5/1B3qp1/1R2R3/1NbrB1R1/kq4Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 h4 a5 d4 g5 b4 c4 h6 a4 b6 g4 b7 a3 h5 f3 h7 c3 b5 a2 d6 c2 Kd5 f2 e4 Qe8 b6 Bd7 h6 Qc8 e5+ Kf5 e6 f6 e7 Bb5 e8B Ra4 d7 Qc7 d8Q Qg3 Rh3 Bb4 Nc3 Ra6 Nf3 Qh2 Bd2 c1Q Be2 f1R Na4 Qc2 Ng5 Qb2 Re3 Qc3 Rc1 a1Q Bc6 Be7 Nb2 Qf4 Ne6 Rf2 Qg1 Qb1 Be1 Qcc2 Bb4 Ba4 Qc7 Ra7 Ng7+ Kg5 Ke6 f5 d5 Na6 b8B Bc5 b7 Nf6 d6 Rg8 h8R Ne8 Qa5 Nac7+ Ke7 Qcc4 h7 Bc2 Bd5 Bb6 d7 Qc6 d8R Bd4 Bd3 Rd2 Be2 Kg6 Rc8 Bb6 Rf1 Bc5+ Kd8 Kf6 Qb6 Bd4 Be4 Ke5 Rf2 Bc5+ Bd5+ Kd4 Rg2 Na6 Bd6 Nac7 b8R Rb7 Qa5 Ba7 Ke7 Rf8 Nd3 Rg8 Be4 Kc4 Qb6 Kb3 Nb2+ Ka2 B4f3 Ka1 Be4 Nf6 Rf8 Nfe8 Rf6 Qff1 Bdc5 f4 Rc8 f3 Bd5 Rf8 Rg8 f2 h8R Qfc1 Rhh6 f1B Rgh8 Bg6 Rhh3 Qc4 R8h6 Rg8 Rb3 Qcc1 Rhe3 Bc2 Kd8 Bg6 Bf8 Q1c4 Ke7 Qf4 Bef3 Bfd3 Be2 Bc2 Bdf3 Rb8 Bd5 Qc3 Bb7 Qc6 Rd8 Rc8 Rd5 Rd8 Rc5 R8d7#
2rnRb1R/N2N3R/Br1n1B2/rr5b/R3nBN1/p2Q2K1/2R5/q2rkNB1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 d4 a5 g5 e5 f6 e4 f7 h3 b6 a4 b5 h2 b7 c4 b6 h4 f5 h3 g6 c3 f6 e3+ Kg3 e2 g7 e1R Be3 c2 Nf3 c1N Qd3 Qd7 Bg1 Qb5 Ne5 Re4 Nd2 Qb3 Ng4 Ne7 g8R Nbc6 b8N Qb1 b7 Re5 Nd7 Nd8 b8N Ba6 Nc6 Na2 Na7 Nc3 Ra3 Rh6 Rh8 Rc8 Be2 Bb7 Nf1 Qa1 Ra2 a3 Rc2 Nec6 Rh7 Na5 Rh8 Nc4 Rh7 Be7 f8B Reh5 Bg7 Bf8 f7 Re6 Bh6 Ne4+ Kf3 Bc6 Bf4+ Ree5 Nb8 Be8 Nd7 Ke7 d6+ Ke6 Rh8 Ra5 d5+ Kf5 Rh7 Bg7 f8B Rg5 Rh8 Bh5 Be7 Bf8 Bf6 Rg6 Nb6 Rh6 d7 Nd6 Rh7 N8b7 d8R Rg6 Re8 Nd8 Bge3 Rb5 Rg1 h1R Nd7 h2 Rg3 Rg1 Bed4 Rg2 Bg1 h1R Rh3 Rh6 Rh4 Ra5 Qd4 Rgh2 Ba6 Rd2 Qd3 Rd1 Kg2 Rh3 Qb5 Rb3 Qd3 N6b7 d6 Rbb5 Nde5 Rg6 d7 Nd6 Kh2 N8f7 d8R Rh6 Rd7 Nd8 Rh8 Rg6 Rdh7 Rh6 Nd7 Rg6 B4e5 Rh6 Bed4 Kf4 Bde3+ Kf3 Qd2 N6b7 Bf4 Nbd6 Qd4 Rd2+ Kh3 Ke2 Qd3+ Ke1 Be7 Nf2+ Kg3 Rd1 Beg5+ Re6 Bf6 Nfe4+ Kh2 Rc7 B4e5 Nd2 Kg3 N6f7 Nge3 Rc8 Ra4 Reb6 Bf4 Nd6 Ng4+ N2e4+
b1K1n2N/r5R1/2N2Rrn/n1Q5/q1rbB1bN/5QNk/pB1NNBn1/B7 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kc4 c5 g4 a5 b4 e5 f4 e4 d4 e3 b6 h3 Kb5 c4 g5 a4 g6 h2 g7 e2 f6 e1N f5 c3 b7 a3 d6 a2 f7 h4 d5 c2 f6 h3 Nd2 Rh4 Bb2 c1R Qf3 Rc2 Bd3 Qe7 Kb6 Nc6 b8B Re4 b5 Rea4 Ba7 Nd4 Ne2 Rc3 Rf1 h1N Be4 Nh6 g8N Qe5 Ne7 h2 Nf5 Rca3 Nfg3 Be7 f8N+ Ke8 Kc7 Kf7 b6 Nc6 b7 Rc4 b8N Rb3 Bf2 Na5+ Nc6 Bg4 Ng6 Qf4 Nh4 Ng2 Rg1 Ra3 Raf1 Ra6 Ba1 Bf8 Kd8 Raa4 d7 Bc5 d6 Ke6 f7 Bd4 Kc8 Kf6 f8N Kg5 Nfg6 Ra3 Nh8 Rb6 Ngf5 Ng3 d8B+ Kh5 d7 h1B Bc7 Kg5 Bb2 Nh5 d8Q+ Nf6 Qf8 Ne8 Be5 Ra6 Qd6 Ra7 Ba1 Rb3 Qc5 Rb6 Nb8 Rg6 Nc6 Qe3 Bb2 Qb3 Ba1 Qa4 Bg7 Be3 Bgb2 Bd4 Qb3 Bh5 Nfg3+ Kg4 Qf3+ Kh3 Rc1 Rg8 Rc3 Rg6 Rd3 Bf6 Rd6 Bd4 Rf6 Bg4+ Bf5 Ne3 Nb8 Rb4 Qb7 Rg5 Nh5 Rc4 Qb3 Ba8 Nc6 Rd7 Bb1 Bf3 Be4 Ra7 Rg4 Ng2 Nhg3 Rgg7 Rgg6 Bh5 Qf3 Bg4+ Re6 Rgf7 Rg7 Rf5 Rf6 Re5+ Rf5 Re6 Rf4 Rg6+ Rf5 Rd7 Rf6 Ra7+
k1B1N1BB/1n1N1qB1/q2r1Q2/1b3R2/1QBB4/qR1N1Kn1/N1n1rp2/2q1b3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 f5 d4 h5 b4 c5 e4 Kc7 e5 Kb7 d6 a5 e6 h4 e7 c4 e8N c3 b6 h3 d5 h2 g6 f3 g7 f4 g5 a4 b5 a3 g6 a2 d7 c2 d6 Be7 Qe1 Bf6 Be3 c1N Bh3 Nh6 g8B Ra6 g7 Ra8 Nc3 Nf5 Rb1 a1Q Na2 Rh4 Bc4 Qc7 d8Q Ra6 g8B Ka8 d7 Ng3 Bd4 Nb3 Ne2 Nc6 Qb4 Nca5 Nec1 Nb7 Rf1 h1Q Nd3 Rg4 Qde7 Bh4 d8B Bd7 Qf6 Rg5 Be7 Re5 Bf8 Qc3 Bg7 Na1 Rb3 Nc2 Bg4 Bc6 Bc8 Qf7 Re1 Re6 Re5 Qc1 Rf5 Qa3 Kg1 f2+ Kh2 Re4 Kg2 Qd2 Kf3 f1Q+ Kg4 Qa1 Kf3 Bd7 Bh8 Re2 Bg7 Qdc1 Bh8 Nc5 b7+ Kb8 Bg7 Rd6 Bh8 Ka7 b8B+ Ka8 b6 Nb7 Bc7 Qa6 Bd8 Ba4 Be7 Qa3 Bf8 Bb5 Bfg7 Q1c1 Rd5 Nf1 Kg4 f3 Rf5 Nc5 b7+ Kb8 Ne5 Be1 Nd3 f2 Kf3 Ka7 b8N Ng3 Nd7 Ka8 Bh6 Nb7 Bf8 Nd8 Bfg7 Nb7
R1B2N2/1B4k1/1bqnQ3/N1r1q2B/bKN2rN1/1Q4Bp/6Nn/n1RN1q1q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 Kd2 h5 Kc3 c5 g4 a5 b4 a4 b6 a3 b7 f3 e5 f2 g6+ Kg7 d6 c4 e6 h4 g5 a2 d5 h3 d7 f4 b5 f3 e7 Rh6 e8B Ne7 d6 Ra3+ Kb4 c3 b6 c2 Ba6 f1Q Nd2 f2 Qe2 Rh4+ Nc4 Rg3 Qe6 Ng8 Ne2 Rd4 Bf4 c1N Nc3 Qe7 d8N Bd7 Nd1 Qf6 Nc6 Ra3 Na5 Nh6 Bg3 Kh8 g7+ Kh7 g8B+ Kh8 Bh5 Rf4 g6 Ne2 Bf7 Rc3 g7+ Kh7 g8N Nf5 Nh6 Ned4 Ng4 Ba4 Rg1 Bg7 d7 Nd6 d8N Nd7 b8N Ne5 b7 Nef3 Nd7 Nb3 b8Q Nh2 Bb7 Bh8 Rc1 a1Q Nf8+ Kg7 Bfg6 Qg2 Bf5 Qh1 Rg2 f1Q Ra2 Qh6 Qe2 Ne4 Qe5+ Kg8 Nd6 Bd7 Qb2 Rf2 Nac6 Be8 Qe7 Bd4 Ra8 Bb6 Bfc8 Rc5 Na5 Ba4 Ndc4 Qc6 Nde6 Nd6 Nf4 Rf3 Ng2 Rf4 Qa2 Qe5 Qe6+ Kg7 Qb1 Na1 Qa2 Qd3 Qb3 Qdf1
1QB3q1/1BQQK1n1/B7/3Nb1bB/r3B1RN/n1b2pnk/Rr3Q1B/1bq5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 c4 d5 e4+ Ke6 h4 g5 h5 f5 b6 d4 b7 d3 h6 f4 h7 a6 Ra2 g3 Nc3 d2 Rh4 g4 Nd5 g2 Nf3 g3 Rg4 g1Q Nh4 Bg7 c6 f3 c5 g2 c7 Bh6 c6 Nd7 b8Q Bb7 c8B Nf6 c7 Bg5 b3 Rg8 h8Q a5+ Kc4 a4 b4 a3 b5 Ne8 b6 Bc6 Bb7 Ng7 c8B Rf8 Qc2 d1N Qf2 Nc3 Qh7 Ne2 Qc7 Ng3 Bf4 Rb8 Bd3 Qc1+ Kb4 Ba4 Bda6 Bc2 Kb5 g1B Kc6 N3h5 Bh2 Rf4 Nc3 Ng3 Nd5 Kf7 Kd6 Qg8 Qf1 Bd4 Qf2 Bc3 e6+ Ke8 e7 Kf7 e5 Ra4 Qd3 Bb1 Qb5 Nf8 Qbc6 Nfe6 Q6d7 Nd4 e8B+ Kf8 e6 Nc2 Rb2 a2 Bg6 a1B Be4 Na3 e7+ Kf7 Ra2 Bab2 Nb4 Kf6 e8B Ba1 Bh5 Be3 Rf4+ Kg5 Ke7 Be5 Nd5 Bac3 Bc6 Ra8 b7 Ra7 b8Q Rb7 Qdd8 Rb2 Bc6b7 Bed2 Qdd7 Be3 Bf7 Bed2 Rf5+ Kg4 Bh5+ Kh3 Rg5+ Ne6 Rg4 Ng7 Qe2 Be3 Qf2 Bg5+
1Rq1k1NB/b1B2Rq1/K1RRbrQ1/3qq3/nR2b1QN/5p2/2B2RB1/5nr1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 f5 d4 c5 Kd2 g5 Kc3 c4 e4 f3 d6 f4 d7+ Kf7 b6 f2 e5 g4 b5 a4 e6+ Ke7 Kb4 a3 b7 c3 d5 c2 h6 a2 h5 g3 b6 g2 Kb5 Qc7 d8R Bg7 d6+ Kf6 d7 Ke7 h7 Ra7 h6 Bf8 Nd2 Ra3 Ngf3 g1Q Bg2 Qe1 Nh4 Nf6 Rh2 Ra8 Ne4 Rg8 h8R Rg6 h7 Rg7 Qg4 f3 Bf4 Qd6 Rc1 Nh5 Nf6 Na6 b8R a1Q b7 Ng3 Rg8 Rf7 h8B Nf1 Rg7 Nc5 Rh7 Qdd2 Bc7 Qd5 Kb6 Ra3 Qg6 Na4+ Ka6 Bg7 Qg4 Rf8 Qg6 Qee5 Qg4 Re8 Ng8+ Kf8 e7+ Kf7 Nf6 Rf8 e8B+ Ke7 Bg6 Ra2 Re1 c1Q Bc2 Qc3 Rd1 Ra1 Ng8+ Kf7 Re8 Q1b2 d8R Be6 Rd4 Re1 Rb4 Qcc6+ Bb6 Qc8 Rd6 Rd1 Red8 Qa1 R8d7+ Ke8 Bc7 Rf6 Rh6 Bf8 Rc6 Bc5 Rhh7 Ba7 Rdd6 Qc1 Rf7 Qh6 Qg6 Qg7 Ra8 Qd8 b8Q Qc8+ Qb7 Ne3 Rb8 f1B+ Rb5 Bd3 Qg4 Be4 Rb4 Qd8 Qb6 Nf1 Qg1 Nd2 Qg6 Rf1 Qd4 Rg1 Qc4 Nf1 Qd4 B4f5 Qdg4 Qc8+ R4b7 Nd2 Bh3 Qed4 Rf2 Q4e5 Bf1 Be4 Bg2 Qd8 Rb5 Nf1 Rb4 Qc8+
1NRK2Q1/N1R4N/n2b2rR/R1bBq3/3r1r1b/2Np1Q2/1kN2B1N/2qn1b2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 b4 d6 h4 g4 c4 a4 c5 a3 b6 e4 h6 e3 h5 e2 c6 e1Q c7 g3 b7 a2 h7 d3 b5 g2 b6 d2 h6 Bd7 c8R Bb5 Rc7 Be7 Nc3 Nc6 b8N Qh4 b7 Qh2 Nf3 g1B Bc4 Qh5 Nh2 Ba6 Qf3 d1R+ Bd2 Bd4 Be1 Qc8 Bf2 Ra7 Bb3 Bf1 Bc4 Ra6 Bb3 Na5 Nc6 Nc4 b8N Nb2 Na7 Rd3 Bc4 Nd1 Bb3 Bb6+ Kc6 d5 Bc4 d4 Bd5 Bd8 Kd6 Qg5 Kc6 Ne7+ Kd6 Qb7 Kd7 Rf8 h8R Bc5 h7 Qb2 Rg8 Qg7 h8Q Qc1 Qh7 Rf7 Re8 Qg3 Qg8 Nc6+ Kc8 Rf8 Kd7 Bde7 Rec8 Rf7 Ke8 Nb4 Kd7 Bed6+ Kd8 Ra5 Nbc6 Na6 Nb4 Rd2 Nc2 d3 Rb1 a1B Rb5 Ra4 Ra5 Rc4 Qe8 Kg7 f6+ Kg6 Qf8 Kf5 Qg8 Rg7 f7 Rg6 f8N Rd4 Nh7 Re2 Nf8 Ree4 Nd7 Bb2 Nb8 Kf6 f5 Ke5 f6 Rf4 Ncb5 Bc3 f7 Be1 f8N Qg5+ Kd7 Qh5 Nh7 Qg5 Bg1 Bh4 Bf2 Rde4 Nc3 Bg3 Na4 Qh5 Kd8 Rb4 Ne3 Kd4 Nhg4 Qe5 Rh6 Rc4 Nh2 Rb4 Nb2 Kc3 Nc2 Rbc4 Na4+ Kb3 Nc3 Kb2 Na1 Rcd4 Nc2 Bh4+
n1Q2Br1/rQBbQ3/2qN4/RBbB4/1BQB1KRN/pq2rn2/5k2/2b1r3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 g4 Kg5 b4 c5 d4+ Kf6 b6 h5 b5 e5 b7 a5 g5+ Kf7 f6 Kg6 f7 Kf5 b6 c4 g6 a4 g7 c3 d6 h3 d5 h2 d7 h4 d6 h3 Bb5 c2 Be3 c1Q Qb3 Qc5 Bd4 Ne7 g8B Nbc6 b8B Ra7 b7 Nd5 Nc3 Qdb6 d8Q Nc7 d7 Na8 Qc4 e4+ Kg3 e3 f4 e2 Qe7 Qb4 d8Q Bd7 Ne4 Ne5 Bc7 Qb3+ Nf3 Qc6 Rhg1 h1R b8Q h2 Qb7 Bh6 Rg2 Re1 f8B h1R Bd5 Rh4 Qdc8 Rg8+ Qg7 Bg5 Bb4 Rh7 Qe7 Rh3+ Kf2 Rg3 Nd6+ Kg4 f5 Bc1 Nh4 Nf3 f6 Kf4 f7 a3 f8B Kg4 Ra2 Kh3 Rg1 Kh2 Rd2 Rh3 Rg4 Rg3 Qc3 Kh1 Ke3 Kg1 Kf4+ Kf1 Bh8 Kf2 Qd3 Nh2 Bd4+ Re3 Qc2 Nf3 Qce4 Rg1 Rd3 e1B Rc3 Bed2 Rc5 Re1 Qd3 Bc3 Qc4 B3d2 Ba6 Bc3 Ra5 B3b2 Bb5 Ba1 Bh8 Bd4 Bhg7 Bb6 Bd4 Bc5
1b3b2/2qqN1r1/1kN3N1/1n2p3/1n2rqRN/RQqR1B1b/1BR2KR1/1Q4R1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 g4 e5 g5 c5 d6 h3 b6 Kc6 f6 c4 g6 c3 g7 h2 b7 c2 b5+ Kb6 d5 a4 f5 h4 f7 a3 f6 a2 d7 h3 d6 Qe8 d8R Nd7 b8Q+ Ka5 b6 Rh5 b7 Kb6 Bg2 Kb5 Nf3 Rh4 Bb2 c1B Kf2 Nh6 g8R Kb6 Rg4 Nf5 Nc3 Nc5 d7 Nd6 Rg1 Ra7 Qb3+ Nb5 Bh1 Bd6 f8N Na6 f7 Bh6 Ng6 Nb4 f8R Qf7 Rfe8 Qf4 Rg8 Bhf8 Rac1 a1Q Rc2 Bc7 Re8 Qd1 d8R Qd7 Bg2 h1Q Nd5+ Ka6 Rg7 h2 Nde7 Kb6 Rg8 Qc6 Rd3 Qc3 Red8 Bf5 R8d4 Be6 Rg3 Bh3 Re4 Bd6 Rg4 Qc7 Ree1 Qd7 Ra1 Bc7 Ra3 Bd6 Qc8 Bb8 Qcc3 Qc7 Qe1 Qc3 Qb1 Qc7 Rgc1 Qd1 Rg7 h1Q Rg8 Qhh2 Rg7 Qdh1 Rg1 Qfc4 Rg8 Qc3 Rg7 Qd7 Rg8 Qf4 Rg7 Bc7 b8N Rb7 Nbc6 Bb8 Bf1 Qc7 Be2 Qhh2+ R4g2 Qg4 Bd1 Qgd7 Be2 Rc4 Nfh4 Qf4+ Bf3 Ra7 Nh8 Rd4 R7g4 Re4 N8g6 Qdd8 Rf1 Qcc8 Nef5 Rg7 Rfg1 Qdd7 Nfe7 Qcc7
B2N1B2/n4N1k/K1N1bBp1/1N1n1rR1/1b2q3/2Qr3n/2b1BnQ1/1RqB2B1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 e4 f5 Ke2 Kf7 Kd3 Kg6 Kc4 a5 d4 c5 h4 g3 b4 a4 e6 f4 e7 g2 e8B+ Kh6 e5 g6 e6 a3 e7 a2 d6 Ra6 b6 Rh7 Kb5 c4 d5 c3 d7 c2 d6 Kg7 b7 f3 h5 f2 h6+ Kh8 Rh5 Ra3 Be3 c1Q Nf3 g1N Ng5 Ra7 Qd2 Rg7 h7 Qc3 Na3 Nf3 Rb1 Na6 b8N Qdc7 d8B a1N Bc6 Rf7 e8B Nb3 d7 Nc1 Ba8 Qf4 Qc2 Rf6 Nf7+ Kg7 Qb2 Ne7 Rg5 Ng1 h8B+ Kg8 Bg7 Nd5 Bc4 f1B Qg2 Bc5 Bf8 Rf5 Bf6 Nd3 d8N Nh3 Bg1 Be6 Bb3 Qcd4 Bd1 Qc1 Ka5 Bd6 b5 Qe4 b6 Ndf2 b7 Kh7 Bb5 Bd3 Bc4 Bc2 Bce2 Nab4+ Kb5 Na2 Nbc6 Ra4 b8Q Rd4 Qb6 Rd3 Qd4 Nac3+ Ka6 Nb5 Qc3 Na7 Nb5 Bb4
N3b2R/2B1r1rn/1Nqn1Bp1/2nR2BB/1K1R1b1N/bN4QB/1kq5/R6b w - - 0 1 illegal: No possible last move
BkB2BR1/N2b2Bp/3K2R1/q3q3/r3rNb1/Q1b3q1/Nb1nR3/1RNn1N2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 a5 f4 h3 b4 a4 g4 a3 d4 h2 b6+ Kb7 b5 c4 g5 c3 g6 e6 g7 c2 f6 a2 f5 Ra4 d6 Ne7 g8B Qc7 f7 Qc6 f6 Bh6 f8N Qc4 d5 Bd2 f7 Bh6 d7 Bd2 d8N+ Ka8 b7+ Ka7 d6 Ra6 d7 Qc6 Ne2 Rb6 Ng6 Nf5 f8B Nh6 Ngf4 Nf5 Bg2 Qf3 Bb2 c1B Qa4+ Na6 b8R Ne3 Qa3 Nd1 Re1 Qg3 Ba8 h1B Rg1 Bb4 Nd2 Bc6 Nf1 Bc3+ Kd6 e5 Be6 e4 Rb1 e3 Ba1 B1b2 Nc1 e2 Bf5 Qf2 Rg6 e1Q Bg4 Rb7 Be6 Bf3 Bh3 Bg4 Nc6+ Kb6 d8N Qg3 Nb4 Bcd7 Rc8 Nc5 Ndc6 Nb3 Na7 Nd2 Re8 Rc7 Re2 Rc4 Nbd3 Ra4 Nb4 Ka5 b6 Rg8 b7 Kb6 Kd5+ Kc7 b8R Rg7 Kc5 Re7 Re8 Re4 Rd8 Bc8 Kd5 Kb8 Kd6 Bh8 Re8 Bbc3 Bb2 a1Q Nba2 Bhf6 Re5 Bcd7 Reg5 Ba5 Bc3+ Qb2 Bd4 Bc3 Rg8 Bh8 R5g6 Qb5 Bdg7 Bb2 Bh6 Bhc3 Bhg7 Qa5 Bg2 Rec4 Bgb7 Rcb4 Bc8 Re4 Rf2 Qe2 Rh2 Qeb5 Re2 Qe5+
1r1q2Qb/npB1RNK1/n1n5/N2N4/Br6/2NNR3/1N1krrQR/1R4qb w - - 0 1 illegal: No possible last move
b3nR2/R7/R3NB1n/1N1Q4/N2bn3/npBNrkqR/3Rr3/2KbBB1b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 Kd2 b5 g6+ Kf6 d6 b3 g7 c4 g5+ Kf7 d7 e4 g6+ Kf6 a5 h4 a6 b2 a7 b4 d5 h3 d6 b3 Nf3 h2 Na3 b1B Ne1 Qc7 d8B+ Qe7 d7 Na6 Bb2+ c3+ Kc1 e3 Ba5 e2 d8B Nh6 g8R Bb7 g7 Nc7 Qd5 Bc2 Nd3 e1N Nb5 Ne8 Ra4 Rb8 a8N Bd1 Nb6 Nc2 Ra3 Rh7 Na4 Ba8 Rh8 Rc8 g8R Bg7 Rg1 h1B Rg2 Rc4 Rd2 Re4 Ba1 Re2 Bb4 Bf8 Rg7 Re3 Bda5 Qe5 Ra7 Bg7 Ra2 Na3 Bb2 c2 B4c3 Nf7 Bab4 Rh2 Rh3 Nh6 Ba5 Bh8 Ra6+ Kg7 f6+ Kg6 f5+ Kg5 f7 Kg4 f8N Qg3 f6 Rhe2 f7 Be5 Ne6 Bd4 Qe5 Kf3 Qg5 Bc5 Bf6 Bb6 f8R Bc5 Bbc3 Bd4 Kb2 c1N Qd5+ Kg4 Ra1 Na2 Ra7 Nb4 Kc1 Na6 Bc7 Nc5 Ra6 Qg1 Bg3 Ne4 Be1 Qg3 Ra7 Nc2 Nb6 Kf3 R1a6 Na3 Na4 Rh2 Qc5 Rf2 Qd5 Rfe2
1n2RK2/k1r5/npb1B3/B4Q2/Qq1Qrp1B/2BbB3/1bQ1NNRr/3Bn3 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 g5 Ke4 c5 Kf5 Kc7+ e6 Kb6 h4 f6 Kg6 c4 Kf7 c3 e4 c2 a4 f5 d4 f4 d6 g4 a5+ Ka7 d5 b3 d7 b2 e5 g3 a6 g2 d6 Bh6 e7 Bg7 e8Q Rh6 e6 Kb6 a7 Bf8 e7 Re6 h6 Re4 h7 Ra4 h8B Ra5 h5 Rg5 h6 Rb5 h7 Nf6 Be2 Qc7 d8B Bg4 d7 Bh3 Nd2 b1B Rh2 Na6 Ne4 Rb4 Nf2 Nb8 Be3+ Rd4 Bf3 c1N Qc2 Na6 Ne2 g1R Rg2 Bg7 Qf8 Rc8 e8B Nd3 a8Q Rh1 Bd5 Ne1 Be6 Rh2 Be7 Ba2 d8B Bb1 Ba4 Nd7 Bh4 Ndb8+ Kg8 Bg4 Qff5 Bf3 Ra3 Be5 Kf8 Bc6 Bg7 Bf6 h8Q Be5 Rc3 Bf6 Rc5 Re4 Bab3 Bb2 Bc3 Bd5 Qd4 Bc6 Qcd1 Bd3 Qc2 Nb4 Qa2 N4a6 Qaa4 Ka7 Ra5+ Qb6 Re5 Be8 Bc7 Bd7+ Bcd8 Rc5 Bc7 Qb4 Ba5 b6 Qc1 B7b5 Bd1 Bc6 Qcc2 Nc7 Bg8 Nca6 Re8 Bd7 Be6 Rc7+ Kf7 Bc6+ Kg8 Re7 Kf8 Rc7+
NB3b1k/2B4n/R2nq3/qr5R/2q2N2/3brNn1/p1BB1BpN/1KQ1B2Q w - - 0 1 illegal: No possible last move, all moves rejected
b2B1B2/r2NRR1q/2B1BNrR/Q4p2/1q1Rn3/bBr2K2/1N2p1nN/k1n5 w - - 0 1 illegal: No proof kernel
1B1BN1bk/1R2rBb1/n1RNN1n1/3p4/r3BQ2/q1q5/1Rp2R1N/1K1N1q1n w - - 0 1 illegal: No possible last move, all moves rejected
BnB1k1nN/1rB1bq2/2N4B/2p1Rb2/BQ1Nr3/Q5Rp/2rq1B2/KNn5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Na3 a5 b4 h5 g4 c5 e4 f5 d4 h4 Kd2 a4 Kc2 f3 Kb2 f2 b6 f4 b5 h3 e5 f3 d6 Rh6 d5 Nd7 g6 Ba6 g7 Qc8 g5 Kd8 b7 Rf6 b8Q Rg6 e6 Ke8 e7 Rf6 g6 Bb7 b6 Qd8 Ne2 Ra5 Qd3 Rf7 Rg1 Rf5 Bg2 f1Q Bh6 f2 Re1 Ndf6 Nb1 Bc6 b7 Kd7 e8N Ne7 g8B Ra6 g7 Qc8 Be6+ Kd8 g8B Nh7 d7 Rf7 Nd6 Nf6 Bh1 Bb5 Rg3 Nc6 Bf3 Ke7 d8N a3+ Ka2 Rg7 N6f7 Ke8 d6 Ra4 Qe3 Bd3 d7+ Ke7 Qbf4 Nb8 Nh8 Be4 Bgf7 Ng8 Be8 Rc4 Qb3 Rc2+ Qb2 Bd3 Qb4 Qc6 Bh1 Qcg2 Nd4 Qh2 Re5 Qhg2 Ka1 a2 Q2a3 Qh2 Bc6 Bg6 Bf3 Qc4 Bh1 f1R Bc6 Bf5 Bh1 Na6 b8B Qd2 Bd6+ Kf6 Ba8 Rf4 Rg5 Nb8 Rg3 Rg6 Bc7 Ke7 Bed5+ Re6 Bdb7 Re4 Bc8 Qb3 Rd5 Rb6 Re5+ Qe6 N8c6+ Kf6 Bf7 Qd5 Be6 Be7 Bf7 Qb3 Bc4 Rb7 Bb5 Qd5 Ba4 Qc4 Bg5+ Kg7 Be3+ Kf8 Bf2 Qf7 d8B Bh4 Be7+ Ke8 Bf8+ Be7 Bh6 Rc4 Nc2 Rc3 Kb2 a1N Bfe3 Nb3 Bf2 Nc1 Ka1 Rcc4 N2d4 Rc2
3R2Q1/kb1K2Rr/2rp2Bq/3B4/N2bQrN1/N2NbBN1/5qpB/3n2nN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kf3 a5 Kf4 a4 c4 g6 e4 d3 h4 d6 b4 Kd7 b6 Kc6 b7 Kb6 e6 d2 e5 a3 b5 a2 e7 Nd7 b8N Nc5 e8B Be6 h6 Nb3 h7 Nf6 h5 Qd7 c5+ Ka7 c6 Nc5 c7 Ng8 c8B Bf7 h6 Na6 e6 Qe7 Na3 Qd7 e7 Qc6 Qc2 d1R Bg2 Bd5 Nh3 Rd4+ Qe4 Qc7 Bb7 Rd2 Rg1 Bf7 Bd5 Qb6 Bf3 Nf6 Nd7 Qd8 Nc5 Rd4 Na4 Nc5 Nf2 Ncd7 Nh1 Rc8 Rb1 a1B b6+ Kb8 b7 Rc6 Rb2 Ka7 b8N Ne5 Na6 Nfg4 N6c5 Ne3 Nd3 Nd1 Rb8 Qc8 Rg2 Qe6 Rd8 Rb4 Kg5 Bd4 Bf4 Bg8 Bg3 f4 Bh2 Be3 Bf7 Bg7 e8N Rbc4 Nf6 Rd4 Kh4 g5+ Kh5 g4 Kg5 g3 Nh5 Qh3 Bg6 Be6 Rg1 Bc8 Rg2 Ba6 Rg1 Qh4+ Kf5 Bb7 Ke6 Qg5 Be2 Nf3 Kd7 Be5 Rg2 Ng1 Bf3 Rf8 h8Q Rf7+ Ke8 Rh7 Qg8 Bg7 Kd7 Qf6 Rb2 g2 N5g3 Ba6 Rbb8 Bb7 Rbc8 Qf8 Rc7 Be5+ Ke6 Rdc4 Rg7 B5d4 Kd7 Qf6 Bg4 f3 B4h5 f2 Bf3 Rh8 h7 f1Q Qf7 Re8 h8N Qf2 Qg8 Qf4 Nf7 Qh6 Nfe5 Rf8 Re7 Rf7 Ng4 Rh7 Rg7 Ba1 Qee8 Rf4 Qe4 Bad4
5b1n/3B2RK/p1Bq1RNR/2k4p/1n1r2RB/bQ3bB1/1B3NBr/2nq3Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 b4 a6 g4 f3 d4 f2 b6 h6 g6 f6 b7 c4 g7 c3 g5 c2 b5 Bh3 g6 Ne7 g8R Nc8 b6 Na7 g7 Bc8 Ra4 Be6 Na3 Qd7 Bb2 c1B Nc4+ Ke7 d6+ Ke8 d5 Qc7 d7+ Ke7 d8B+ Kd7 d6 Kc6 d7 Qh2 Nh3 Qd6 Bg2 f1Q Ne5+ Kb5 Nf2 Nbc6 b8B Qe7 b7 Na5 Ng6 Bd5+ Kf5 Nc4 e4 Nc6 e5 Nb4 e6 Qd6 e7 Ne5 e8B Nf7 Rh3 Qe2 Qh1 Kc5 Bbc7 Qd2 b8Q Qd1 Be7 Ra7 d8R Bf3 Bc6 Rh7 Rd7 Nh8 Bed8 Rb7 Rf7 Ra7 Be7 Ra8 Qb7 Re8 Bed8 Re4 Bd7 Rd4 Rh4 Nc2 Qb3 Nb4 Rg4 Qb6 Bg3 Qd6 Ba1 Ba3 Bb2 Nd3 Rb4 Nc1 Rb6 Qb8 Ke6 f5 Bdh4 f4 Kf5 Qd6 Rf6 Bd5 Bc6 f3 Nh3 f2 Bd7 f1N Nf2 h5 Ne7 Rd2 Rh6 Rc2 Nh3 Qc6 Be8 Qd4 Be4 Rg2 Nf2 Qb5 Rbf6 Qb8 Bc6 Rh2 Bg2 Ne3+ Kg5 Nc2 Kf5 Nf7 Kg6 Bf3 Rh8 Qd1 g8B Nd6 Be6 Nb4 Rg8 Qc7 Nf5 Rd7 Rg7 Nf7 Kh7 Rd4 Ne7 Qd8 Ng6 Qd6 Bed7 Nh8
1Nn2n1n/2N4k/r5q1/NB5n/3NQ3/b1p1rB1R/3BBpQ1/nb1NK1NR w - - 0 1 illegal: No possible last move, all moves rejected
3rN3/1N4Bb/Br1b4/R1NKnq2/1BpB1n1b/2Q1N1k1/3pQnb1/B5RB w - - 0 1 illegal: No possible last move
b1RBRQN1/7Q/4bN2/bN2Nn2/1Kp2kB1/6rQ/2pNqN1r/rb2Q1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 e4 Ke7 b4 Ke6 d4 f5 Kd2 a5 Kc3 c5 g4 h5 g6 a4 g7 f4 g5 h4 d5+ Kd7 d6 Ke6 d7 f3 g6 a3 b6 h3 b7 f2 b5 a2 b6 h2 Nh3 Qg5 d8Q Rh6 Nd2 Qg4 Qe1 Na6 b8Q Qe2 b7 Qe3+ Qd3 Rh7 Be2 f1B Nf2 Nh6 g8Q+ Nf7 g7 Nc7 Bg4+ Ke7 e6 Kf6 e5+ Kg5 e7 Be6 e8N Nh6 Nf6 Qe2 Qh3 Nf5 Qd8 Rh4 b8N Kf4 Qh7 Rh6 Rg1 h1B g8N Ra7 Qd6 Ba8 Nbd7 Rh5 Rb1 a1R Rb8 R7a4 Rc8 Nb5+ Kb2 Bg7 Qf8 Nbd4 Kc3 Nf3 Rg3 Ng1 Re3 R4a2 Ba3 Bfg2 Bb4 Bge4 Ba5 Bb1 Bd8 Bed5 e6 Rg5 e7 Be6 e8N Rb2 Bf3 Rg3 Nc7 Rba2 Ne5 Rb2 Qe8 Bf8 Bg4 Bd6 Nb5 Bc7 Qc1 Rba2 Qa3 Ba5+ Qb4 Rb2 Qf8 Bd7 Nde4 Qd1 Nh1 Rh2 Nhf2 Qe2 Nf7 Qd1 Kb2 Qe2+ Qd2 c3+ Kb3 c2 Qe1 Qd1 Nd2 Qf3 Kc4 Qd1 Re8 Qf3 Ne5 Qd1 Nd6 Be6+ Kb5 c4 Kc5 Bc7 Nb5 Qe2 Kb4 Ba5+
r7/kB4R1/nNn1rQK1/1rpN4/1B2nbB1/1NNpR2Q/3q1BbB/2B2r2 w - - 0 1 illegal: No proof kernel
KQ2Q2N/2NR1B1b/r1Q1rQ2/1p6/1kr4b/qn2nB2/bp2BbB1/B1B2R2 w - - 0 1 illegal: No possible last move, all moves rejected
R2BB3/1b1N2Bp/R1nR3N/Q1B3rR/4kBbq/n3rN2/np2Kb2/N6n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 d4 b5 g4 e5 a4 c5 f6 Kg6 f5+ Kf7 a5 b3 d6 b2 d7 e4 a6 e3 d5 e2 a7 b4 d6 b3 Rh5 c4 Nf3 c3 Nbd2 b1B Ra6 b2 Nb3 c2 Bf4 c1N Qd2 Bd3 Na1 Bg7 g6+ Kf8 g5 Qb6 d8B Qd4 f7 Nh6 d7 Bb7 Qa5 Nc6 Bg2 Rb8 a8R Na2 Bb6 Ke7 f8N Be5 d8B+ Kd6 f6 Ng4 f7 Nf2 g7 Nh1 g8N Bf5 g6 Bg4 Bc5+ Kd5 g7 Ke4 Nh6 Rg8 Nd7 Bf6 f8B Bh4+ Bg3 Qf2+ Kd2 Rc8 Bf4 e1N+ Kd1 Qg3 Ke2 Nc2 Bf1 Na3 Bh3 Rh8 g8R Qh2+ Bg2 Bf2 Rg6 Rg8 Rd6 Rg5 Bg7 Qh4 Bdf6 Re8 Bd8 Bf5 Bh3 Bg6 Be6 Bf5 Bf7 Re5 Be8 Bg4 Bd2 Rd5 Bde3 Rd3 Bf4 Re3+
1B1R3B/Np1rkbRq/5b2/B4RQr/3p2b1/3R1B1N/1Q1r1R1n/b1R2n1K w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 g5 h4 e5 a4 d5 f4 b3 Kf2 b2 Kg2 d4 h6 g4 f6 e4 f5 g3 h5 e3 a5 e2 f7+ Kd7 f6 e1B c6+ Kd6 c7 Rh7 c5+ Ke6 c6 Qe8 a6 Bd6 f8R Nd7 a7 Qe7 f7 Bc3 Qb3+ Kf6 Nh3 Ba3 Rg1 Qd6 Be2 Nc5 Bf3 Qe6 Bd2 Na4 Kh1 Be7 Ra3 Rh8 h7 Nb6 h6 Ba5 Nc3 b1B Qb2 Qd7 Nb5 Ba2 Rd3 Bc3 Rg2 Rb8 a8R Nc4 Na7 Ne3 Rf2 Qf5 Rd8 Nf1 f8R+ Bf7 Be1 Bd7 c8Q Qh5 c7 Bg4 Qd7 Qh4 c8R g2+ Kg1 Qh5 Qdb5 Ke6 Rc4 Bf6 Qg5 Ke7 Rc5 Rc8 Rf5 Rc4 Rac8 Rc7 Bd2 Rd7 Rc7 Ba5 Rc1 Bc3 Be1 Ng3 Kh2 g1R Bd2 Rd1 Rg2 Nf1+ Kh1 Bb4 Rf2 Ba3 Ba5 Rd2 Rfe8+ Kd6 Ree1 Bb4 Re7 Bc3 Qb3 Ba1 Qb2 Bd5 Rg7 Bf7 Qf4+ Ke7 Qg3 Be5 Qf4 Nf6 Qg5 Re8 h8B Qh4 Rb8 Rc8 h7 Rc5 Rgg8 Qh6 Bg7 Rcd5 h8B Qh7 Bh6 Bc7 Rg7 Bd8 Qh4 Rb5 Bf4 Rc5 Rc8 Rcd5 Bb8 Rb5 Rf4 Rh5 Rf5 Kf8 Rd5 Bge6 Re3 Ng4 Qg5 Ngh2 Rd3 Bg4 Rf5 Ke8 R8c2 Bf6 Rc8+ Ke7 Rcg8 Rh4 Rd8 Rh5
5R2/1p2N1Bk/3Bp2r/1bb3K1/b1n2r2/R3B1RQ/Q1rNB1qR/3Rrn1R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 c5 Kf4 c4 a4 e6 d4 c3 h4 c2 f6 b3 d6 b2 a5 g6 a6 Qc7 h6 Qc3 a7 Bg7 d7 Qc4 d8R Qe2 h7 Ne7 h5 Qe1 h6 Qa5 d5 Rg8 h8B Qe1 d6 Bf8 h7 Nf5 d7 Qe4+ Kg5 Nc6 f4 Nce7 Nd2 b1B Qh5 Nd5 Be2 Nd6 f5 Ne3 Bg7 Ndc4 h8R Nf1 Ngf3 Bc5 Nh4 Rf8 Ra3 Qg2+ Rg3 Rb8 a8R Ba2 Rh7 Bb3 Ra3 Ba4 Qg4 Ra8 Qh3 Rh8 Rh5 Rh6 Rh2 Bb5 Rh1 Ra4 Rh2 Bf8 Rh1 Kg8 f7+ Kh7 f6 Be7 f8B Bc5 f7 Rb4 Nf5 Ra4 Kg4 g5 Bd6 Rb4 f8R Ra4 Bcb2 c1R Ne7 Rc2 Bbd4 Rb4 Be3 Ra4 Rde8 Rb4 d8Q Bcd7 Qa5 Ba4 Rc8 Bdb5 Rh4 Qg1 Kf3 g4+ Kf4 Qh2 Kg5 Qg2 Rgf3 g3 Rcd8 Qg1 Qa6 g2 Rg3 Qh2 Qa5 g1R Ra8 Nb2 Qg2 Bb3 Ra2 Rf4 Ra1 Nc4 Rd1 Qh3 Qa4 Nh2 Qa2 Re1 Ra3 Nf1 Rh5 Qh2 Rh4 Qg1 R4h2 B3a4 Qh3 Qg2
N2nRr2/1k2p1B1/R2bQ3/R1b2pqn/3NN2N/N3Kp1r/3N2b1/2RQ1Bn1 w - - 0 1 illegal: No proof kernel
3Q2RN/1kB1pp2/R7/1r2NB1K/5rbp/1N1R2b1/qRNBq1n1/r3nRB1 w - - 0 1 illegal: No possible last move, all moves rejected
1BR1nr2/1pr1k1BK/3R4/1Qp1qR1B/b7/1n1RN3/1pRb2NQ/q3R1Bb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 e5 Kd3 h5 Ke4 c5 d4 b3 f4 b2 g4 h4 a4 h3 a5 h2 f6 Be6 f7+ Ke7 g6 Kd7 d6 Rh3 g5 Rf3 g7 Bc4 Kf5 e4 Kg6 e3 f5 e2 f6 e1Q a6 Qg3 a7 Na6 d5 Rb3 Be2 Qe7 Bh5 Rb6 Nd2 Qge5 Ngf3 Qg3 Qb3 Be2 Rf1 h1B Nh4 Nb4 Kh7 Bef3 g6 Rb8 a8Q Rb5 Nc4 Nh6 g8R Ng4 g7 Qe6 Be3 Na2 Rae1 Qf4 Bg1 Ra5 Qb5+ Kd8 d7 Rc8 Qb8 Qc1 Qh2 Ne3 Rf2 Nf5 Ng2 Qe5 Rd2 Kc7 d8B+ Kb8 Rde2 Nh6 d6 Ra8 d7 Be7 f8R Qa1 f7 Nf5 Rf2 Bd5 Rc2 Bg5 Be7 Kc7 d8R Be6 Rd3 Bd2 Nce3 Nd6 Rd8 Bd5 Rgf8 Nc1 g8R Bb3 Rg5 Ba4 Rf5 Rab8 Rg8 Ra8 f8B Nb3 Rg6 Rab8 Bg7 Ra8 Rh8 Rab8 Bef8 Kd8 Rg8 Rc6 Be7+ Kd7 Bd8 Rc8 Bc7 Ke7 Bb8 R8c7 Rc8 Ne8 Rh6 Rf6 Rg6 Rf7 Rgd6 Rf8
Bq1nQ2N/1p2N3/2Bp1K2/3bBB2/2B1R1qb/1p3Q2/kB1rr1R1/1bn2N1N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 Kd3 e5 Ke4 h5 f4 d6 g4 h4 c4 h3 a4 b3 a5 h2 f6 Ke6 f7 Rh5 f5+ Kd7 f6 Ke6 c6 Bd7 g6 Bh6 f8B Ra7 g5 Rh3 f7 Rc3 g7 Bc8 g6 Rf3 a6 Qf6 c7 Ra8 c5 Qg5 a7 Qd8 c6 Qe7 Ra2 Rg3 Bg2 Nd7 Bb2 Rd3 Nd2 Qg5 Nh3 Ne7 Nf1 Rd2 g8B Qh5 g7 Bg5 Bf3 Bh4 Nf2 Qh8 Rg1 h1B Ra4 Bg2 Nh1 Nc5+ Ke3 e4 Kf4 e3 Re4+ Kd5 Be5 Bf2 Kg5 e2 Kf6 Bf5 c8B e1Q c7 Nd3 Bb2 Rb8 a8B Qe2 Be5 Bg6 Bf5 Nc6 c8N Nc1 Ne7+ Kc5 Bb2 Nd8 Be5 Bh3 Rg2 Qc4 Qe2 Kb4 Qd3 Bh7 Ng6 Ka3 Be7 Bg1 f8Q Ka2 Qe8 Bf2 Qe3 Qb4 Bc4 Qg8 Nh8 Bh4+ Rg5 Bg2 Bf8 Qd5 g8N Rc8 Ne7 Qg8 Qf2 Rc5 Bb2 Re5 Bg7 Bg6 Bd1 Qa4 Qf3 Qa7 Bde2 Qb8 Bb5 Qc4 Bc6 Qa4 Bc4 Bh7 Rd4 Ree2 Re4 Bg8 Kg6 Bd5 Bge5 Qb4 Rf4 Be4 Kf6 Bb1 Re4 Bh3 Bh7 Be6 Bf5 Bd5 Bd3 Bf2 Rg2 Qd4 Bc4 Be1 Re3 Qg4 Re4 Bh4#
BQ3Br1/NN2bK1N/N1r1q3/QNQn4/n2p4/N1p3Q1/n1pR2R1/k2b3n w - - 0 1 illegal: No proof kernel
1n1qR1b1/1k3p1N/1r2pR2/1R2Q3/r1B2B2/2NBRKbQ/n1Bnp3/1n1R2R1 w - - 0 1 illegal: No proof kernel
R1rk4/5BB1/1p2K1qr/RR1r1Q1B/4N1R1/1pN1N1np/3p4/1n1NBbbR w - - 0 1 illegal: No possible last move, all moves rejected
k5NR/B1n1p2b/2rn1b2/3BQpQ1/4BKRp/pN2q3/3rB1N1/2N1nN1N w - - 0 1 illegal: No proof kernel
6n1/1BB4R/K1RNQRpN/Bqpb1R2/2pR4/bp4N1/N4rkr/B2n3q w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 d5 c4 dxc4 g4 Rh7 gxh5 Rh8 Ke2 Kf7 f4 Kf6 a4 b5 d4 e5 h4 g6 h6 c6 h5 e4 h7 e3 a6 Qb6 a7 Be7 d5 Bb7 d6 Nd7 a5 Bd8 a6 Ne5 h6 Bc8 d7 Rb8 a8R Bc7 d8B+ Ne7 a7 Qb7 Nc3 Nd7 Qb3 Ne5 Ra6 Bd7 Na2 Rc8 Bd2 Rb8 Bg2 Rf8 h8N Rc8 h7 Nd3 Nf7 Rg8 h8B+ Rg7 Ba5 Be8 Rh7 Ne5 Nh6 Bb8 Bdc7 Nd5 Be4 Ke7 f6+ Ke6 f7 Nd7 f8R Rf7 Ba1 N7f6 Bf3 Ng8 f5+ Ke7 f6+ Ke6 Bg2 Bd7 Rd8 Rf8 f7 Nc3+ Kf1 Kf6 Ne2 Kg5 Ng3 Be6 Rd4 Nd1 Ke2 Bd5 Be4 Kh4 Rb6 Rfd8 f8R Kh3 Rf6 Rf8 Qb1 Rce8 Rf5 Nb2 Re5 Be6 Bd8 Bd6 Qe1 Ba3 Rc8 b4 a8N b3 Nc7 Rf4 Rf5 Bd7 Nb5 Be6 Rcc7 Rf3 Rcf7 Re7 Bc7 c5 Nd6 Qa6 Bb7 Qb5 R7f6 Rf4 Ra6 Rh4 Kf3 e2 Ke3 Nd1+ Kf3 Rh5 Ke4 Kg2 Rb6 Rh2 Ra6 Bc8+ Kd5 Re4 Rb6 Rf4 Ra6 Rf2 Rb6 Qb4 Kc6 Be6 Ra6 Qa4+ Kb6+ Bd5 Ka7 Qb4 Rc6 Qa4 Ka6 Qb4 Qd2 e1Q Qe3 Qh1 Qe6 Qb5+
6rq/R1R1R1Qp/nk1N1bq1/3B1p1K/R2b2B1/1q6/2p1bB1R/2RR2RN w - - 0 1 illegal: No possible last move, all moves rejected
Rnbq4/5Qr1/R1bR1BbR/2b2rb1/2R1r2r/RK1N3N/3N2k1/1n1B1R1R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 f6 e4 f5 h3 b6 h2 f7 c4 b5 h4 g5 a4 f6 a3 g6 e3 g7 h3 b7 a2 b6 e2 Bg5 e1R Qh5 Ra5 Nd2 Qd7 Be2 Na6 b8R Qe7 b7 Qe5 Ra8 Qe8 b8R Ra4 Rb4 Rf1 Bd1 Ne7 g8R Qd8 Rg6 Rf5 Rh6 Nb8 Kc2 c3 Kb3 c2 Rc4 c1B Ra6+ Kd7 d6 Ke6 d5+ Ke5 d7 Rg8 d6 Rg7 Qg4 Nd5 Qh5 Nc3 Bh4 Be7 f8R Nb1 f7 Ba3 Re8 Bc5 f8R Kd5 Qg6 Bf6 Re1 Bg5 Rf1 Ke5 Rfh8 Kd5 Qf7+ Ke5 Rc2 Re4 Ra3 Kd4 Rc4+ Ke3 Ra6 Bf4 Bf6 Bg5 Ngf3 Kf4 Ne1+ Kg3 Nd3 Kg2 Ra3 Qf8 d8R Qe7 Rde8 Qd8 d7 Rh4 Re6 Re4 Re1 Rh4 Rhf1 h1B Rd6 h2 Ree8 Kg3 Ree1 Be4 Rh1 Kg2 Ref1 Rd5 Re8 Bg6 Raa6 Rf5 Rf8 Qe8 d8N Re4 Ne6 Qd8 Re1 Rh4 Rhf1 h1B Nef4+ Kh2 Nh3 Bc6 Re3 Kg2 Rh1 Nc3 Rc1 a1R Rf3 Ra5 Rff1 Re4 Ra1 Ra4 Ra3 Nb1 Nc1 Rh4 Rcd4 B8d7 Qc4 Qa5 Rc8 Qd8 Nd3 Be6 Re4 Nd7 Rca8 Nb8 Ref4 Bc8 Qf7 Rd4 Re4 Rdd5 Rea4 Rdd4 Rc4 Rde4
B1R1r1Kn/B7/3RBbb1/1b4b1/1BBbq3/q2Nrbk1/2BB2Bn/1N2RQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 e4 f5 c4 a5 b4 a4 h4 g6 c6 a3 c5 a2 c7 d4 h5 d3 b6 d2 b5 g3 c6 g2 h6 Ra4 h7 Bd7 c8B Bd6 c7 Qf8 Kg5 f4 b7 f3 b6 f2 Ne2 g1Q+ Bg2 f1B Rh6 Nc6 b8B Nge7 b7 Qd4 Ba7 Ra3 b8B Re3 Ba6 Be8 Bc4+ Qd5 Qe1 d1B Bd2 Nd4 Nc1 Bf3 Nd3 Rg8 h8R Rg7 Qd1 Ba3 Bc5 Bc1 Bcb4 Rh7 Ba7 Bb5 Nb2 Bd3 Qf1 Qa8 Rc8 Rg7 Bac5 Qa3 Ba7 Bc2 Nd3 Rh7 Rh1 Rg7 Kh6 g5 Rh5 g4 Rg5 g3 Rg6+ Kd7 Rf6 Ng6 e6+ Kc6 e5 Nh8 Rg6 Qe4 e7+ Kd7 e6+ Kc6 Bh1 g2 e8B+ Rd7 Rf6 g1B Bg6 Re7 Bg2 Bf2 Re8 Bh4 c8B Bb2 Bb7+ Kc7 Bf7 Bg5+ Kg7 Bc3 Ba8 Bb2 Ba5+ Kd6 Kg8 Bc3 Rc8 Bb2 Ne1 Ke5 Bab4 Bc3 Rg6 Kf4 Nd3+ Kg3 Rh6 Bh5 Bg6 Nf3 Bh7 Nh2 Bg6 Rb7 e7 Bf3 e8B Bd4 Bef7 Re7 Bfe6 Bdf6 Nc3 Bd4 Re1 a1B Nb1 Bdf6 Bb3 Bad4 Bgf7 Bcd1 Bc2 Bh5 Bc4 Bdf3 Bfe6 Bg6 Rh5 Bf4 Rd5 B4g5 Rd6 Re8+
bk5n/1B4pK/4N1R1/1R2q1Br/3R2br/qbRR3r/3NR2N/QR2Rnb1 w - - 0 1 illegal: No possible last move
Bbq2R2/NR1q1r2/1R2p2R/1NK5/RQ1RB1qR/n2r1bkp/3p3R/2B3n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Kc4 h5 f4 d5+ Kc5 h4 g4 d3 b4 d2 c4 h3 b6 a4 g6+ Kf6 b7 a3 g5+ Kg7 b5 d4 b6 a2 Ne2 d3 Bg2 Be6 Na3 Rh4 f6+ Kh8 f5 Ra5+ Nb5 Qe8 f7 Kg7 f6+ Kh8 g7+ Kh7 g6+ Kh6 Qe1 Kg5 Nc3 Kg4 Rh2 d1Q Be4 Nh6 g8R Bd5 g7 Ra3 Na7 Nf5 Ncb5 Ra4 Qb4 d2 Rh8 Qd8 g8B Nd6 Rh6 Nc6 b8R Kg3 b7 Qg4 Bgh7 Bg7 f8R e6 f7 Nd4 Rh8 Ra3 f8R Rd3 Bf3 Qd7 Bhe4 Rh5 Rbd8 Ne2 b8R Ng1 Rb6 Rf5 Rdb8 Kf4 R8b7 Rf7 Rh4 Kg3 R8h6 Be5 Rd8 Ne8 Bg2 Bc6 Bgf3 Qc8 Rd4 Bb8 Bh7 Qf4 Rc7 Qe3 Nd6 Qe4 Rd5 Ba8 Kb5 Rf6 c5 Qd8 c6 Bb7 Rd4 Rf7 Re7 Qf4 c7 Qg4 c8R Nc7+ Kc4 Nb5 Kc5 Ba8 Bg6 Bc6 Rd7 Qc7 Rf8 Qc8 Rc7 Bd7 Ba8 Bc6 Bf5 Bh1 Bfe4 Bf3 Rb1 a1Q Rb3 Be2 Ra3 Bf3 Ra5 Qa2 Ra4 Na3 Ndb5 Qb3 Rdd6 Qb2 Rd5 Qf6 Rdd6 Qfd8 Rd4 Qcd7 Rcb7 Q8c8+
1B4B1/B1bBpq1r/RQ2n1p1/R3NBpB/b3n3/2B1K3/3r1q2/1qB1B1kN w - - 0 1 illegal: No proof kernel
N1b2q2/8/Nqp1K1Bk/1B1BQ1R1/3RrBnB/5B1r/1n1pqb2/3Q2BB w - - 0 1 legal: proof: d4 g5 b4 b5 h4 a5 hxg5 e5 c4 c6 f4 exf4 a4 Bd6 d5 Ra7 c5 Qb6 cxb6 Rc7 b7 Bf8 d6 Nh6 dxc7 Bd6 axb5 Ng4 b6 Bf8 b5 Nh6 Qd5 Ng8 Qb3 Bd6 Qd1 Bf8 Kf2 f5 Kf3 Kf7 g4 Kg7 e4 h5 g6 d5 e5 a4 g5 h4 e6 h3 e7 a3 e8B h2 Nh3 a2 Be3 d4 Bg1 d3 Na3 d2 Nf2 Na6 b8B Bb4 b7 Bf8 b6 Ne7 Bb5 Be6 c8B Bc4 Ne4 Bg8 Nc4 Be6 Nc5 Nb4 Na6 Bd7 Bd6 Rh7 b8Q Ned5 b7 Nd3 Be7 Rh4 Nb6 Nf6 Na8 Nb2 Qe5 Be6 Bd8 Bc5 b8B Bf2 Rc1 a1Q Rc4 Bd7 Rd4 Qa5 Be7 Qb6 Bf7 Kh8 g7+ Kh7 g6+ Kh6 g8B Ng4 g7 Be6 Bg6 Bd7 Bb7 Bc8 Bd5 Rh3+ Kg2 Re3 g8B f3+ Kh3 f4 Bh4 Re4 Bd6 Be1 Be2 f2 Bf3 f1Q+ Bg2 Re3+ Bf3 Re4 Bd5 Bf2 Bb8 Bf5 Bc8 Qd3 Bce6 Qe2 Bef7 Be6 Bc4 Bc8 Bb5 Bb7 Bd5 Bg3 Be3 Be1 Rg1 Bf2 Bh1 Nf6 Rg5 Ng4 Bfg2 f3 Ba7 Be1 Bg1 f2 Bb8 f1Q Bc7 Qf8 Bf3 Bf2 Qe6 Nf6 Bf4 Ne8 Kg4 Nf6+ Kf5 Ng4+ Bf7+ Nf6 Qe5 Ng4 Bhg2 h1R Ke6 Rh2 Bh1 Rh3 Bg6 Bc8#
8/1B1BR3/1rB1Q1rk/1nn1r2b/1BQ2bn1/1NBRBB2/rqN1K2b/n5B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 g4 Kg6 b4 a5 b6 h5 b5 c5 b7 a4 b6 f3 d6 f4 d5 c4 d7 c3 d6 f2+ Ke2 c2 e5 a3 e6 h4 e7 a2 e8B+ Kg7 g6 h3 g5 h2 Bh3 f1N Qd3 Ne3 Qc4 Nd5 Be3 c1B Na3 Na6 b8Q Bb2 b7 Ndf6 Rd1 a1N Rd3 Be5 Nc2 Bd4 Nf3 Nd5 Re1 h1R Nd2 Be7 Nb3 Qc7 d8B Ngf6 d7 Bd6 Be7 Ng4 d8B Rh6 Bc6 Qb6 Qa7 Bc7 b8B Bde5 Bb4 Nc5 Qa2 Rg1 Ba7 Bd7 Bg2 Be8 Bf3 Bcd6 Be7 Nc7 Bc3 Nb5 Qa6 Qb8 Bb7 Bc7 Qae6 Bf7 Bb6 Ra2 Bd6 Qa7 Be7 Qa3 Bbc6 Qb2 Ba7 Kg8 g7 Kh7 g8B+ Kg7 Bh7 Bh5 Bf5 Rf6 g6 Kh6 g7 Bcd6 g8B Rg6 Rc1 Re1+ Kd2 Bc7 Bg1 Re4 Re1 Bed6 Bf7 Re5 Bb7 Bb8 Be8 Bbc7 Bec6 Bb8 Bd1 f3 Re4 f2 Bf3 f1R Ke2 Rb1 Bb6 Na6 Bbd4 Bdc7 Beb4 Nc5 Bdf2 Rd5 Be3+ Bf4 Qf6 Bc7 Bfd7 Rg5 Qf5 Bh2 Qfd5 Bcf4 Re7 Re5 Qe6 Nd6 Ba3 Qc1 Nd4 Rb6 Bab4 Qb2 Nb3 Nb5
R4NNn/Nk4b1/3pb2Q/1qQ2bBr/rnN1nN1r/NR6/1K5N/1B3N1r w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 b4 g5 c4 e5 Kc2 a4 f4 d6 h4 Kd7 b6 Kc6 f6 a3 c5 a2 f5 d3+ Kb2 d2 f7 g4 f6 g3 b7 e4 h6 g2 b5+ Kc7 h7 e3 c6 e2 h5 e1R h6 Re3 Rh3 Ne7 Qc2 d1B Bd3 Na6 b8N Nd5 Qc5 Be6 b6+ Kc8 c7 Ndb4 Nd2 Rg3 Nc6 Ra7 b7+ Kd7 b8N+ Kc8 Nd7 Rg5 Nce5 Bf3 Bb1 Bb7 Nec4 Rg7 Rb3 Bf5 Nf1 Rg6 Na3 Bbe4 Nb6+ Kb7 c8N Ra8 Nf3 g1N Na7 Ne2 N3h2 Bd5 Bg5 Qb8 Nbc4 Bg7 f8N Bde6 Nd7 Nf4 Qg1 Rd8 h8Q Nc5 h7 Ne4 Qc5 Rh6 Qf8 Rh4 h8N Rc8 Ng6 Re8 Qh8 Rf8 Qh6 Rh8 Kc1 Rh7 f7 Qe8 Nf6 Qb5 f8N Rh5 Nc8 Ra4 Na7 Rh4 Kb2 Rh5 Ne7 Ng6 Nd5 Nh8 Nf4 Nc3 Ng8 Rh4 Bd3 Rh5 Rd1 a1R Bb1 Rh4 Qg6 R7h5 Qh6 Bf7 Re1 Bd5 Re8 Bde6 Bd3 Rd1 Ra8 Re1 Bb1 Rc1 Nfd2 Rh1 Ndf1 Ne4+
1NQQBRBr/1nBn1RR1/4KQ2/6BQ/k1q5/5rN1/1qqq1R2/1n1n2n1 w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kb3 Kd7 Kc4 h5 e4 c5 d4 a5 b4 h4 g5 g2 d6 h3 Kd5 a4 b6 a3 g6 c4 e5 a2 g7 h2 b5 c3 f5 c2 b7 Rh5 f6 Qa5 f7 Rg5 f8R Qe1 b6 Rh5 Ne2 g1N Nbc3 Nc6 b8Q Nh6 g8R Nf7 b7 Rh4 Na4 Rh7 Ng3 Nh6 Bg5 c1Q Rg7+ Nf7 Bc4 f1Q Rb1 a1N Rb2 f2 Qh5 Qd3 Ra2 f1N Rf2 Qb2 Bb3 Nd2 Ba2 Ngf3 Rhf1 h1Q Bc4 Ra7 Qa8 Qde2 b8B Qh2 Bc7 Nd8 Qb7 Qh4 Qb6 Ng1 e6+ Kc8 e7 Kd7 Ba2 Nc2 Bb3 Ne5 e8B+ Kc8 Qa6+ Nb7 Nc5 Rh8 Nd7 Ne3+ Ke6 Nd1 d5 Qhc4 Nb8 Nb1 R2f7 Qbc2 R1f2 Q1d2 Qa1 Ra3 Ba2 Na5 d7+ Kb7 d8Q Rf3 Qc8+ Ka7 Qc3 Nb7 Qa1 Nd7+ Qe5 Qcb4 d6 Qbb2 Bd5 Qec4 Qf6 Qh4 Be4 Qhf4 Bh7 Qfb4 Bg8 Qbc5 Nc6+ Ka6 Nb8+ Kb5 Re2 Kb4 Rf2 Ne5 d7 Ka4 d8Q+ Nd7 Qfh6 Qcb5 Qhf6 Qbc4+
N2K2RB/1N2rbR1/1N2k2n/r2qr1R1/n1QR2p1/1QN1Qr1q/Q7/n2B4 w - - 0 1 legal: proof: b4 b5 g4 h5 e4 hxg4 a4 a5 c4 d5 cxd5 f5 exf5 e6 axb5 a4 Ra3 Bc5 Ra2 Bb6 Ra1 Ba5 bxa5 Rh6 Bh3 Rh4 Bf1 Rh8 Ke2 Ke7 Ke3 g5 Kd4 c5+ Ke5 g3 f4 c4 d4 c3 h4 g2 a6 c2 f6+ Kf7 d6 a3 d5 a2 a7 g4 b6 Qf8 f5 Qd8 b7 Nh6 h5 Qa5 d7 Qc3+ Kd6 e5 d8N+ Kf8 f7 e4 Nf3 g1R Be2 e3 Qe1 Qg7 Kc7 Ke7 f8R Qg8 Bd1 e2 Bb2 c1Q+ Nc3 Qb1 Nd2 Rg2 Nc4 Qe6 Nb6 Ng8 h6 Qc1 h7 Qce3 Rh5 Nc6 b8Q Q6e4 Nb7 Nd8 Rg5 Nf7 d6+ Kf6 d7 Qd5 d8R Ke7 f6+ Ke6 Rg7 Ne5 f7 Nh6 Rfg8 Rg3 f8Q Nc4 Qb4 Qed3 Rdd7 Re3 Kd8 Rf3 Qb3 Qe3 Qh2 Qed3 Qeg1 e1R Qhc2 Re4 Qe3 Re5 Rb1 a1N Qg2 Q5e4 Rd4 Qf1 Qgc2 Qh3 Qa2 Qf5 Qcb3 Qfh5 Rf8 Rg8 h8Q Qf7 Rg5 Rg7 Rg8 Qfh5 Qh7 Re7 Qhd3 Qf7 Nbd5 Nb6 Qdc4 Na4 Rc1 Rb8 a8N Qf5 Rc2 Qe4 Ndb6+ Qd5+ Nd6 Rbb7 Rf2 Ra7 R5g7 Rg3 Rf5 Rf3 Rfg5 Bd7 Nb7 Ra5 Kc7 Bc6+ Kc8 Bd7+ Kd8 Be8+ Kc8 Nf5 Rh7 Rb5 Re4 Rg7 Nb1 Re7 Rf4 Re4 Bh8 Bf7 Rhg7 Re5 Nc3 Nh6 Rd4 Kf6 Be2 Ra5 Bd1 Qc6+ Kd8 Qe4 Ncd5+ Ke6 Nc3+ Qd5+
R1B1QrQ1/5B1N/nNQKQ1n1/5N2/q1p1n3/B1Nqr1B1/b3p3/k1qR4 w - - 0 1 illegal: No possible last move
nNR4b/4R3/7Q/pp1K1bQ1/Nr1pN2n/Bk1B1B2/r2Rq2N/Bq4R1 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Rh6 d4 cxd4 a4 Rh8 a5 b6 a6 Qc7 Ra5 Qc6 Ra1 Qb7 axb7 a5 b4 Ra7 b5 Ra6 bxa6 b5 Kd2 Kf7 Kd3 d5 h4 e5 f4 g5 c4 g4 h6 g3 h5 g2 f6 Ke6 c5 Rh7 f5+ Kd7 c6+ Kd6 a7 Kc5 a8B Kb4 c7 Rd7 f7 Re7 h7 Na6 h8R Nb8 f6 Nc6 b8N Bg7 f8Q Na7 h6 Bh3 c8N Bd7 f7 Bh3 h7 Nh6 Qd2+ Kb3 Nf3 g1R Rh2 Nf5 Ba3 Rg2 Nd6 Nh4 Nc3 Bf5+ Nde4 Nc8 Na4 Nb6 Qg5 Ra2 Rd2 Re6 Rg8 Bh8 Re1 Rd6 Bc6 Na8 Qfh6 Rf6 f8R Rg6 Qf4 Rg4 Qfg5 Rf4 Nh2 Rg4 Ke2 d3+ Ke3 Rf4 Rc8 Rg4 Rdd1 d2 Bd3 Rf4 Re2 Rg4 Rg1 d1Q Rd2 Qb1 Rg7 Rf4 Re7 Rg4 Nf6 e4 Kd4 e3+ Kc5 e2 Ne4 e1Q Kd6 Bd4 h8B Qe2 Be5 Be3 Beb2 Bd4 Ba1 Bh8 Kc5 d4 Kd5 Rg3 Be8 Rf3 Bh5 Rf1 Bf3 Rc1 Rdd1 Rc4 Rd2 Rb4
q1k1n2q/p4Nb1/2N1R2R/1Q1K3R/5Bpp/1B4b1/2N1Nrn1/1B1RBnQ1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 h4 g5 h5 Bf5 gxf5 Na6 Rh3 Rb8 Rh2 Rb6 Rh1 Rg6 hxg6 Qe7 Ra5 Qd7 Ra1 Qd8 Kf2 Kd7 e4 h5 b4 c5 d4 c4 f6 g4 b6 c3 d6 c2 b7 Nb8 b5 Ne7 b6 Na6 b8N+ Kc8 f7 Qc7 g7 Ng6 g8B Qc5 d7+ Kd8 e5 Qe7 e6 Nc5 d5 Bh6 f8B Ne5 b7 Qg7 e7+ Kc7 d8N Nc6 e8R Nd4 d6+ Kb6 d7 Kc7 Na3 Qe5 Bd3 Ne2 Bb3 Na6 Bb4 Rf8 Re6 Qh8 Be4 Rf5 Nf7 Bg7 Ra2 Rf6 d8R Rf5 Bcd2 c1B Bb1 Bcb2 Qe1 Bbe5 Be3 Rf6 Rd1 Rf5 Rh6 h4 Nc2 Rf6 Ra5 Bd6 Rah5 Be5 Kf1 f2 Bc1 Rf5 Rh3 Rf6 Re3 Bd6 Kg2 Rf5 Ree6 f3+ Kh1 Nf4 Ne2 Rf6 Qg1 Rf5 Be1 Rf6 Qg3 f1Q+ Kh2 Qh3+ Kg1 Qh1+ Kf2 Rf5 Ke3 f2 Qg2 f1N+ Ke4 Rf6 Kd4 Rf5+ Kc4 Rf6 Qf2 Qe4+ Qd4 Ng2 Bg5 Qf3 Qg1 Bg3 Kd4 Qc6 Be3 Qce8 Kd5 Rf2 Nc6 Qa8 b8Q+ Kd7 Qb5 Kc8 Bf4 Nc7+ Kc4 Ne8 Kc5 Bc3 Kd5 Bg7
3q4/1rkp4/q2Nbp1B/3BRR1B/6KB/N3NQ1p/p2n3R/1NbbQR2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 b5 a4 e5 axb5 a5 fxe5 f6 g5 Ra6 g6 Re6 Ra3 Re7 Ra4 Re6 Ra1 Re7 h4 Rf7 gxf7+ Ke7 Ra4 g6 Ra1 g5 Nd2 g4 Nb1 Na6 Ra2 Nc7 Ra4 Ne6 Ra1 Ng5 hxg5 Qc7 Ra3 Qb6 Ra1 Qd8 e4 h5 Nh3 g3 Ra2 d3 c4 g2 Kf2 a4 Kg3 d2 b4 a3 b6 Nh6 b7 Qe8 b8N Kd8 e6 Bb7 g6 Bg7 f8B Qe7 b5 Qf7 e7+ Kc7 e8R Ba8 e5 Bf3 e6 Ng4 c5 Bd5 e7 Bc4 b6+ Kb7 c6+ Ka8 c7 Kb7 c8N Ne5 Na6 Be6 Be2 Nd3 Nf2 Kc6 b7 Bc4 b8R Qe6 Rb5 Qf5 Ng4 Qf1 Nd6 Ne1 Nb4+ Kc7 Nc2 Bh6 g7 Rg8 Rf5 Rh8 g8B Be3 Bh6 Nf3 Rb2 a2 Nca3 Bd5 Qe1 d1B Kh3 Bb6 Bcg5 h4 Rh2 Bd4 Rb4 Bc3 Rbf4 Bd2 Bf7 Rg8 Bh5 Bc1 Bc4 Nd2 Rf2 Qe2 Rf1 Rf8 Bb3 Qb5 Qe3 Qb8 Qf3 g1Q Bc4 Bg8 Bd5 Qd4 Ne3 Qd3 Nec2 Qc8 Kg4 h3 Bh4 Bf7 Rd8 Qda6 e8Q Qb8 Qe1 Rh8 Re8 Qba8 Re6 Rb8 Ree5 Be6 Ne3 Rb7 Qee2 Qc8 Qe1 Qd8
1n2K1r1/Qb5k/r1B2bNN/2B3QR/nq1n3B/1QqQ1Nq1/Bb4b1/2RN4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 Ke5 a5 b4 c5 g4 c4 f4 e6 d4 a4 b6 h3 d6 h2 b5 h4 d7 c3 b7 a3 f6+ Kh7 b6 c2 f5 a2 g5 h3 f7 Bg7+ Kd6 e5 f8B e4 d5 e3 g6+ Kh6 f6 Ra7 f7 Nc6 b8Q Rb7 Qa7 Nf6 Nc3 Nb8 Bb5 Rg8 Qd3 Qc7+ Ke7 Qg3 d6 Ne4 Nf3 Nc5 Ke8 Na4 d8Q Rh8 Bd2 c1N d7 Ne2 Nd1 Nd4 Be1 e2 Rc1 a1B Bc6 Bb2 Qf6 Rc7 d8N Bb7 Bf2 Rh7 Bc5 e1Q+ Qe7 Bh8 f8N Bf6 g7 Qb4 g8B Rg7 Ng6 Rd7 Ba2 Kh7 Nf7 Rd6 Nh6 Re6 Re1 h1Q Re5 Qhe1 Rh5 Qec3 Be1 h2 Bf2 Ba6 b7 h1B Be1 Rd6 Qee3 Bg2 Qg5 Nd7 b8Q Bb7 Bb5 Ra6 Bc6 Qg4 Qg3 Nb8 Qh3 Qf4 Bh4 Qe5+ Qe6 Qg3 Qb3 Rg8+
q3qN2/Rr1B1R2/2R2QbQ/N1BB1N2/n1n3rr/1n1bBK1r/2R5/Nk4b1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 g4 Kd6 d4 e5 b4 a5 f4 c5 f6 h5 f7 h3 g5 a4 g6 a3 b6 a2 g7 c4 f5 e4 f6 h4 b7 c3 b5 h2 b6 e3 Qd2 c2 Kf3 h3 Na3 e2 Qh6 e1Q Bb5 Rh7 Be3 c1R Bd7 Ra6 Ne2 Ra7 Ng3 Ne7 g8B Nbc6 b8R Rc4 b7 Na5 Rf1 h1R Nc2 h2 Rc1 a1N Ra8 Qe8 b8N Rb7 Ra7 N1b3 Na1 Rg1 Rc2 h1B+ Kg4 Qd8 Nc6 Be4 Rf3 Bg7 f8N Bg6 f7 Ra4 Rff2 Nc4 Kf3 Rh1 Na5 Rh3 Bb5 Bf5 Bd7 Rh4 Rf1 Bd3 Nf5+ Kc7 d6+ Kb6 d5+ Bd4 Rff2 Kc5 Rf1 Kb4 Rff2 Nb2 Rc6 Ka3 Rfc2 Ka2 Bc8 Rg7 Bf4 Rh2 d7 Bh7 d6 Rg5 Bc1 Ng6 Bd2 Qee8 Bc1 Bg1 Be3 Qc7 d8R Rah4 Rd7 Rgg4 Re7 Rh1 d7 Kb1 d8Q Qb8 Rd7 Qa8 Qf6 Na4 Re7 Rb5 Bd7 Rb8 Ne6 R1h2 f8B Rb7 Rg7 Rh1 Bfc5 R1h2 Nf8 Rh1 Ng3 R1h3 Bd5 Ne5+ Kg2 Bf2 Rf7 Nc4 Kf3 Bhg6 Ra2 Rh2 Rc2 Bg1 Nf5 R2h3+
rRN2kN1/1b2q2Q/qb1K1nQN/8/3n1BBN/1q1rR3/1QBBr2r/3Qq3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 Kf3 c5 Kf4 h5 Ke5 h3 f4 h2 g4 c4 b4 e6 d4 h4 g5 h3 d6 a4 g6 a3 d5 c3 d7+ Ke7 b6 a2 b5 c2 g7 Qc7+ d6+ Kf7 d8Q Rh6 f6 Bb7 f5 Ra6 Na3 Bd5 b7 Bc4 b6 Rh4 Qd7+ Ne7 Bd3 Ra4 Bd2 c1Q Nb5 Rh8 Bc2 Ra5 Rb1 a1R Nf3 Qc6 Nh4 Be2 Re1 Ra8 Na7 h1Q Nc8 Ba6 Re3 h2 Qc7 Kg8 d7 Qg1 d8N h1Q Nf7 Qa3 Qd6 Qh3 Nh6+ Kh7 f7 Qe1 g8B+ Kg7 Qd7 Nd5 Qc7 Be7 f8N Nf6 Nd7 Bc5 Bf7 Qb3 Bh5 Ra3 Bg4 Qhg2 Qd6 Qge2 Qd3 Qcb5 Qe4 Bd4+ Kd6 Nc6 b8Q e5 b7 Bb6 Qa7 Qa5 b8B Bb7 Qd4 e4 Qb2 Nd4 Bc7 Ng8 Nf6 Kf8 Bb8 Qaa6 Bc7 Ne7 Nfg8 Nd5 f6 Rh7 f7 Nf6 Rf3 e3 Rh3 Qg2 Rg3 e2 Re3 Qe4 Bb8 Qaa4 Qa6 Qee8 Qd3 Qac4 Qg6 Qa6 Re7 Qa2 Qc3 Ba5+ Kc5 Qf1 Bbf4 e1R N6f5 Bg2 Rb8 Bb6+ Kd6 Re2 Re3 Qe1 Qb2 Rd3 Nf3 Rh2 Nfh6 Qb3 Nh4 Bb7 Qe4 Kg7 Qe7 Nd5 f8Q+ Kh8 Qff7 Nf6 Qg6 Qef7 Qge4 Kg7 Qd7 Kf8 Qg6 Qe8 Qdh7 Qe7+
B3R3/nn1Q2b1/5B2/Q2R1bKN/1r2q1Q1/rbpR4/1q1qB1BR/1Q1N1rk1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 b4 Ke5 e4 Kd4 g4 c5 e5 h5 g6 a5 d6 f5 b6 c4 g5 a4 d7 a3 b5 a2 e6 h4 g7 h3 b7 h2 b6 Be7 g6 Ra5 Bg2 Rh7 Ne2+ Kd3 Bb2 Rh6 Nbc3 Rd5 Ng3 Rd6 Nh5 Nf6 g8B Bf8 e7 Rc6 e8R Ne4 g7 Nd6 Bd5 Re6 g8B Re4 Qa4 Bg7 Rad1 a1Q Qa5 Rc5 Bh7 Nc6 b8Q Na7 Ba8 Nb7 Bg8 Qg5 d8R+ Bd7 Qe5 Rd4 Qa4 Ra5 Qe6 Bc8 Qad7 Ra3 Qg6 Qh6 Qg4 Qb1 Ba1 Qb2 Bd5 Re4 Bc6+ Qd6 Bb5 Kd4 d3 Qd5 Rd2 Qd6 Rhd1 h1Q Ba6 Qh4 Rh1 Qd5 Nd1 Qg5 Rh2 Qe7 Kf2 f3 Kg3 f2 Bb5 Qe6 Kh4 f1R Kg5 Qdd6 Ba6 f4 Bb5 f3 Ba6 Nc5 b7 f2 b8Q Rf4 Qb3 Nb7 Qc2 Qe4 Qb1 Rg1 Bb5 f1B Ba6 Be2 Bb5 Rgf1 Ba6 Kd5 d4 Bd3 Bb5 Bc2 Rd3 Bb3 Qe7 Be6 Qd7 Qf3 Ba6 Ke4 d5 Qb4 d6 Q4d2 Rg8 Bf5 Bb5 Qbc2 Bf6 c3 Rgf8 Qb2 Rd5+ Qdc2 Be2 Qd3 Qb5 Qdc2 d7 Qd3 Qa5 Qdc2 Nf2+ Ke3 Rde8+ Qfe4 d8Q Qd2 Qd7 Qe5 Rd8 Rb4 Rfe8 Qe4 Nd3 Qa2 Nb2 Kf2+ Nf4 Kg1 Nd1 Qdb2 Nh5 Qd4 Re3 Qe4 Red3 Qc2 Rc8 Qab2 Re8 Qd2+
5n2/2k5/K1N1R3/2p1RN2/n1qB1N1b/RQQ1nBRB/1q3rb1/1Nqb1r1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 c5 Kd3 f5 Kc4 a5 e4 h5 g4 f3 b4 f4 e5 h4 e6+ Kc7 e7 f2 e8R f3 b6+ Kd6 Kb5 a4 g6 h3 b7 h2 g5 a3 g7 a2 g6 Rh5 Qc2 Rh7 Nh3 Rh5 Re5 Nd7 b8R Ndf6 Bb2 Nh7 Rb6+ Kd7 d6 Ne7 g8B Ra7 d5 Rh6 g7 Bb7 Rg1 h1Q Bd4 Nf5 Rg3 Be7 Qc3 Ra6 Nf4 Rf6 Bh3 Kc8 d7+ Kc7 Rbe6 f1N Bf7 f2 g8B Qg2 Bh5 N5e3 Bf3 Nf8 Bf7 Qc8 d8N Nd1 Nc6 Nfe3 Bg6 Qg1 Bge4 Nb2 Bh1 Rf5 Bef3 Bh4 Ne7 Rf7 Nf5 f1B+ Qc4 Bg2 Qc3 Qc1 d6+ Kd8 d7 Kc7 d8N Na4 Nc6 Qd8 Nd3 Qd5 Nf4 Rb6+ Ka5 Qc4 b5 Qb2 Nb4 Be4 Nc6 Rb8 Ka6 Bc2 Ka5 Bd1 b6+ Kd7 b7 Kc7 Qe1 Rd8 Qc3 Rd6 Re8 Rdf6 b8Q+ Kd7 Qbb3 Kc7 R8e6 Qc1 Nd2 Qb2 Rc1 a1Q Nb1 Qaa3 Rc2 Qc1 Ra2 Qab2 Ra3 Rg7 Nh6 Qd3 Nh5 Qbe2 Rgg5 Qc4 Bfg4 Rf2 Nf4 Bf1 Bgf3 Qeb2 Nf5 Rg6 Rh5 Rg3 Rg5 Rg1 Rg8 Bg2 Rg3 Qb4+ Ka6 Rgf1 Qbc4 Q4b3 Qd5 Qb4 Qdb3 Qc4+
1QQ3bK/R1QNn3/RBpnN3/r1br2Nr/3BB3/n2qb3/Q5B1/1q2kN2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 a5 g4 h5 f4+ Kh6 b4 c6 d4 a4 d6 e6 f6 h3 d5 h4 g5+ Kg6 b6 a3 f7 h2 d7 h3 f5+ Kh7 b7 a2 g6+ Kg7 d6 Rh7 b5 Be7 f8N Rh6 b6 Ra5+ Qd5 Rh5 Bb2 Kh6 g7 Kg5 f6 Na6 b8Q Nc5 f7 Ne4 Nf3+ Kg4+ Ng5 Kg3 b7 Kf2 Qc7 Ke1 b8Q Ba6 Qcc8 Bd3 Bd4 Bc2 Rg1 h1Q Nd2+ Bb1 Rg3 h2 Bg2 Qg1 Nf1 h1R Qcc7 R1h3 Rb3 Rd3 Rb7 Rd1 Ra7 Rd3 Kf4 e5+ Kf5 Rd1 Kg6 Bd3 Rb1 a1N Rb6 Nc2 Qa2 Na3 Nfe6 Bc2 f8N Rd3 Bb2 Rdd5 Rba6 Qb6 Bd4 Qb1 Nc5 Bd3 Nfe6 Bf8 Kf7 Ne7 g8B Bh6 Bh7 Bc2 Nh3 Be3 Kg7 Qc8 d8Q Qd7 Nef4 Qf5 d7 Nd6 Kh8 Qd3 Qdc8 e4 d8B Rb5 Bg7 Ra5 Nd7 Bc5 Qbb6 e3 Ng5 e2 Qbb7 Kf2 Bb2 e1B Qbb8 Bd2 Bd4+ Be3 Nfe6 Ke1 Q7b7 Qc3 Bb6 Bg6 Q7c7 Qcd3 Kg7 Be8 Bf5 Bg6 Bfe4 Bh7 Kh8 Bg8+
2k1K1Rn/1qn4Q/pQn4B/1BqbNq2/1b2rbr1/B1NB1R2/1R4R1/2QQ4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 c5 Ke4 h5 Ke5 c4 b4 e6 g4 a6 d4 h3 f4 c3 g5 h4 d6 c2 d5 h2 b6 h3 b5 Rh5 b7 Qe7 g6 Rh6 b6 Rh8 g7 Qf7 f6 Ne7 g8B Qg6 f7 Nf5 Bh7 Ne7 f5 Kd8 d7 Qg2 Kd6 e5 f6 e4 Ba3 c1N Nc3 e3 Bb5 e2 Bhd3 e1B Ra2 Rh4 Rb2 Rf4 Nf3 Bg3 Ne5 Re4 Rg1 Nb3 Qc1 Nbc6 b8R h1Q b7 Qf3 Rgg2 Ng6+ Ke6 Bd6 f8B h2 Kf7 Qg1 Bh6 Ra7 Ra8 h1Q b8Q Bb4 Qb7 Nc5 Rb8 Nh8+ Kf8 Na5 f7 Bf4 Qb6+ Rc7 Qg6 Qhh5 Qh7 Nc6 Ra8 Ra7 Rb8 Kc7 Ke8 Qf5 f8R Bb7 Rfg8 Ne6 d6+ Kb6 Rc8 Qc5 R8g3 Ba8 d8Q+ Rc7 Qf6 Rg7 d7 Rg4 Rd8 Kc7 Rb8 Qd1 Rf3 Qb3 Rd8 Nb8 Qfg6 Bd5 Qh5 Nc6 Qhh1 Qa4 Qhd1 Kb7 Ra8 Qa5 d8Q+ Qc7 Qd6 Qg7 Ra7+ Kc8 Ra8+ Nb8 Qb6 Qb7 Ra7 Nc6 Ra8+ Qb8 Ra7 Qa8 Rg7 Qb7 Rg8 Nc7+
1KQ1b1R1/1R1N1Q2/1b1kq1rQ/5n2/2n5/4rN1r/1BB1rpB1/QNBN1n1r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 a5 Ke5 f5 e4 g5 d4 g4 b4 f3 h4 g3 d6 f2 h6 c4 d5 g2 h5 a4 b6 a3 b7 c3 b5 f4 b6 a2 h7 c2 h6 f3 Ne2 g1R Nec3 Qh4 Bg2 Rf1 Rg1 Na6 b8N+ Ke8 d7+ Ke7 d8N Qh3 d6+ Ke8 b7 Qg4 d7+ Ke7 Ne6 Qg6 d8Q+ Kf7 Nd7 Ne7 Kd6 Ra7 b8Q Nc5 e5 Ra3 Kc7 Nd3 Qb3 Nf5 Nd4+ Qe6 Kb8 Bc5 Qd5 Bb7 Qc8 Ke7 Qd2 Rg8 h8Q Nb2 h7 Bb6 Qh6 Rg6 Nd1 Re1 Qdc4 f1N Qb3 f2 Nf3 Qd5 e6 Kd6 e7 Re2 e8B Bc6 Qf6+ Qe6 h8B Bb5 Qa4 Nc4 Qf7 Rae3 Bhb2 Rg5 Qfh7 Rg3 Bg6 Rh3 Qf7 Bc6 Nbd2 Bb5 Rb1 a1R Bh7 Raa3 Qa5 Rac3 Qa1 Ba4 Bh1 Rcd3 Rg8 Rd4 Bg2 Rg4 Bg7 Rg5 Rb2 Rg6 Nb1 Bd4 Rb7 Bb6 Bd2 c1R Bb2 Rcc3 Bdc1 Rh1 Nc5 Be8 Nd7 Rf6 Ng1 Reh3 Nf3 Rce3 Bg6 Nh4 Bf5 Rg6 Bc2 Nf5
RN1Nr1N1/B1QR1b1N/8/1q1R1KR1/q4q1B/Q2nBB2/n1p4k/bbr1b3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 a5 f4 c5 d4 e5 b4 h5 g4 a4 b6 c4 f6 a3 b5 h3 f5 c3 f7 c2 b7 h2 b6 h4 g5 h3 f6 a2 g6 Nc6 b8B+ Qc7 g7 Bb7 Bg2 Ra5 Nc3 Rb5 Bf3 Nh6 g8R Be7 f8B Nb4 f7 Ng4 Be3 Nf2+ Kf5 e4 Rg5 Nfd3 Ba7 Bc6 b7 Be8 Bh6 Bf6 b8N Qc5 f8R Bf7 Qc1 Bg7 Bf2 e3 Bh4 e2 Qa3 e1B Rd1 a1Q Re8 Na2 Ne4+ Kc7 Re5 Rb1 Nf6 Re8 Ng8 Rc1 Rd2 Qb5 d6+ Kc8 d7+ Kc7 Rc5+ Kd6 d5 Qd4 d8N Qda4 Be2 Bc3 Nf3 Ba1 Rhg1 h1Q R1g4 Qab3 Ra4 h2 Rd1 Qg1 Ra5 h1B Rc8+ Q3b4 Rc7 Qgb6 Rd7+ Kc5 d6 Kd5 Ra6 Qc7 Rg1 Qc8 Ndc6 Qd2 Bc5 Nc3 Ng5 Qe3 Ra8 Qca6 Rda7 Qaa4 d7 Qed4 Rg4 Nf4 Nh7 Bg2 Rg6 Bf1 Bh5 Bc4 Rg3 Ba2 Bf3+ Ne4 Rb7 Bb1 Ba7 Qd2 Kg4 Ke6 d8Q Nc3 Rd7 Na2 Qc7 Qd6 Rd4 Nd3 Nd8+ Ke5 Be3 Re6 Rg2 Re8 Kh3 Kf5 Rd5+ Qe5 Bh5 Ke4 Kg4 Qd6 Kg5 Qh2 Rg4+ Kf3 Kf5 Qg3 Rg7+ Kg2 Rg5 Kh2 Bf3 Qgf4+
r1n1k3/qN1q3r/KQBr1bNr/Q1Bbn3/N2R4/2R1pb2/RN3B1R/4B3 w - - 0 1 illegal: No possible last move, all moves rejected
2R1bqnr/4Rr1k/K2N3B/R2Rnp1b/3bB3/BQ1Q3n/1qB1Q3/b1N3Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 f5 h4 Kf7 d4 g5 Kd2 Kg7 Kc3 c5 Kc4 a5 e4 f3 d6 f2 e5 g4 e6 a4 e7 g3 e8B g2 d5 a3 d7 a2 b6 Nf6 Kb5 c4 d6 c3 b7 c2 h6+ Kh7 h5 Qc7 d8R Be7 d7 Ra7 Nc3 Rf8 Qe2 Ra4 Ne4 Ra3 Nd6 Ra8 Ba3 Kh8 h7 Kg7 h8R Rf7 h6+ Kg6 h7 Nc6 b8Q c1B Qb6 Nb8 Rf8 Nc6 h8B Na5 Rh7 Qc3 Bg7 Bb7 Bh6 Be3 Qa7 Bf3 Ka6 Bg4 b5 Bd4 b6 Qc8+ b7 Bh5 Rfh8 Qc5 b8Q Nc4 Qb3 Ne5 Rc8 Rb8 d8Q Ng8 Bc6 Bf6 Be4 Ra8 Rd1 a1Q Rd2 Qac1 Rd1 Ba1 Rd5 Qb2 Qd7 Bg7 Qdb5 Qb4 Q5d3 Qb8 Rcc5 Qf8 Ra5 Rc8 Nh3 g1N Nf4+ Kf6 Bfg2 f1B Bh1 Nh3 Qg1 Nf2 Qed1 Rd8 Ne2 Nh3 Nc1 Bfe2 Bhg2 Kg6 Qd2 Beg4 Q3e2 Rb8 Bc2 Bf3 Qdd3 Bf6 Rdc5 Bc6 Rd5 Be8 Be4+ Ng4 Qgf1 Bd4 Qfe1 Ne5 Q1f2 Rf6 Re7 Rf7 Qfe3 Nf6 Rg8+ Kh7 Qg1 Rc8 Rg6 Ng8 Rge6 Bc5 Rc7 Rd8 Ree7 Bd4 Rc8 Bb5+ Kb7 Qg7 Qa4 Nf6 Qdc4 Rh8 Qab3 Ng8 Qcd3 Be8 Ka6 Qf8
1n4k1/B2Q2b1/q4n1R/NB2qpb1/1rqB2bN/1RBQbN2/4K1RN/R6r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 f5 d4 Kf7 e4 g5 h6 c5 h5 g4 e5 f3 h7 f2+ Ke2 c4 d6 c3 b6 a4 d5 g3 b7 c2 h6 g2 d7 a3 b5 a2 e6+ Kg6 b6 Ra3 e7 Kf7 e8R Qe7+ Be3 c1Q d8N+ Kg6 d6 Be6 d7 Ra4 Nf3 g1B Qd3 Ra8 Nh2 Ra4 Nc6 Kf7 d8Q Ra6 Nd2 Bc8 Q8d7 Qc3 Ndf3 Ra3 Na5 Nf6 Rd8 Bg7 Rg8 Na6 b8B Qc4 b7 Ra4 Ba7 Rb4 b8R Bb7 Bd4 Be4 Rb7 Nb8 Ba7 Qa6 Bed4 Qc4 Rc7 Qa6 Rc3 Qc4 Rb3 Qa6 Rc1 a1B Rcb1 Bb2 Ra1 Bc1 Bc3 Bg5 Bcd4 Bf8 Rg6 Bg7 Bc3 Re8 h8N+ Kg8 Bcd4 Qe5 h7+ Kf8 Rh6 Re7 Ng6+ Kf7 h8B Kg8 Qb7 Rc7 Ngh4 Rc1 Qd7 Bd5+ Be3 Bf7 Ra2 Bh5 Rd2 Bg4 Rdb2 Qc5 Bd4 Qd5 Bc3 Qe5+ Be3 Qad6 Kd2 Ne8 Qd4 Qee7 Qd8 Bf8 Bb5 f1Q Qd7 Qc4 Qd3 Qa6 Ra2 Qec5 Ra1 Rd1+ Ke2 Rf1 Bhe5 Nf6 Bf2 Q5d5 Ba7 B1e3 Bed4 Bg7 Rg1 Qe5 Rg2 Rh1
2R1qb1n/n5q1/3KrR2/1NNp3Q/3Qb1Q1/3QbR2/5RBr/Bqkq1N1N w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 g5 b4 a5 h4 d5 f4 d3 f6 d2 b6 Ke3 h6 g4 h5 g3 b7 a4 f7 a3 b5 g2 f5 a2 h7 Bd7 f6 Ra7 b6 Ra6 h6 Nc6 b8R Bg4 b7 Ra7 Ne2 g1Q Rc8 Qf2 b8Q Qf5 Qg3+ Bf3 Rh2 Ra6 Bb2 Ra3 Bg2 Kd3 Qg4 Ra7 Ng3 Qg5 Nh1 Bg7 f8N e5 f7 e4 Nd7 e3 f8R e2 Rf6 e1B Kd6 Nce7 c5 Ng6 c6 Bf2 c7 Qe8 Nc5+ Ke3 Qf1 d1Q Nd2 N8e7 Rc1 Bg1 Ba1 Nc6 Qb5 Qf5 Rc3+ Qd3 Qbc4 Be4 Qa6 Rb7 Qb5 Na7 Nf1+ Kd4 Qb3 Q3b1 Qa3 Bf2 Rcf3+ Kc4 Qd3+ Kb4 Ra8 Be3 c8N Re7 Rb8+ Qb5 Ra8 Bf8 Rb8 Qbb3 Ra8 Ka3 Rb8 Qe8 Ra8 Rg8 h8Q Qc3 Qg7 Nh8 h7 Qcb3 Q7g5 Rg6 Q5h5 Rh6 Nb6 Qb1 Nba4 Qd1 Nc3 Qbb1 Qe5 Rh4 Rc8 Rh3 Qed4 Rh6 Rf2 Rh4 Rh3 Rh5 Rhf3 Rh2 Na6 Kb3 Bb2 a1Q Nb5+ Ka2 Nc5 Qbc1 Q3c3 Kb1 Qa3 Qc3 Qb3 Qa2 Ba1+ Kc1 Qbc4 Qb1 Qcd3 Ng6 h8Q Qcb2 Qhh5 Nh8 Qb4 Qc3 Rg6 Qg7 Rgf6 Qa2 Qa4 Qb1 Qad4 Re6#
1K1nbn1N/1BQQq2k/3Qp3/2N5/3Rb1N1/Q4Rq1/RBbRr2n/r3N1b1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 Kc5 a5 g4 e6+ d6 a4 d4 c6 f4 a3 b4 a2 b6 h3 d5 h4 b7 h2 f6+ Kg6 f5+ Kh7 g5 h3 b5 Be7 f7 Qd7 Kb6 c5 f8N+ Kg7 g6 c4 Nf3 c3 Nbd2 c2 f6+ Kh6 g7 Na6 b8Q Nb4 f7 Qd8+ Qc7 Rh7 d7 Nc6 d6 Ra5 Bb2 c1Q Bg2 Ra8 Nb3 Nf6 Nc5 Qc3 Rf1 h1B Ng6 h2 f8Q Ng4 Ne1 Qg3 Rf3 Rh8 g8N+ Kh7 Qd4 Bg5 Nh6 Be3 Qd3 Qe7 d8R Bd7 Kb7 Be8 b6 Bg1 d7 Ra3 Qdd6 Ra6 Rd1 a1N Rd2 Nb3 Kc8 Ra1 b7 Rg8 Nh8 Rg5 b8R Re5 Ra8 Re2 Ne4 Nc5 Ra2 Nce5 Rd4 Ng6 Kb8 Nb7 Rd2 Ne3 Nc5 Ng4 Qff4 Nf8 Qb4 Qf4 Qa3 Qg3 Bh3 Bg2 Rd4 Bf1 Bg2 h1B Rd2 Nh2 Ng4 Qe5 Rc8 Qf4 d8Q Qg3 Q8d7 Nd8 Rc3 Rf2 Bb7 Be4 Rf3 Bc4 Rd4 Re2 Rd2 Bb3 Rd4 Nf7 Rd8 Bbc2 Rd2 Qeh4 Q6e7 Bb3 Qda4 Bd1 R8d4 Bdc2 Qed6 Qe7 Qad7 Nd8
2n2b1Q/1npb1n2/2QB4/NrB3Qb/3RB1RR/3Kp2R/4Qr2/k1N1Bqr1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 b4 Kd6 d4 h5 g4 e5 f4 a5 b6 e4 b5 a4 g5 a3 f6 a2 f7 e3 g6 h3 g7 h4 f5 h2 b7 h3 f6 Nh6 g8R Bf5 b6 Qd7 Na3 Bb1 Bd2 Qb5+ Nc4+ Kd7 d6 Kc6 d5+ Kc5 d7 Kd4 d8R Qa5 d6 Qa4 d7 Bh7 Bg2 Qa7 Be4 Nc6 b8Q Bg6 b7 Bh5+ Rg4 Ne7 Na5 Nc8 Rb1 a1N Rb4+ Kc5 Be1 Qa6+ Qd3 Nb3 Ra4 Ra7 Qa8 Qb5 b8Q Rb7 Rd4 Qc4 Re8 Rb5 d8Q Rg8 Qa6 Rg5 Re6 Rf5 Qaa8 Qc1 Qd1 Qa1 Kd3 Rf2 Ne2 Qc1 Rh4 Qa1 Rg1 h1R Nc1 h2 Rgg4 Rg1 Qe2 h1B Re7 Bg2 Qab7 Bh3 Q7a8 Bg7 f8B Nf7 Qab7 Nd2 Qa6 Nc4 Re6+ N4d6 Qe7 Nd8 f7 Nb7 Reg6 Bh6 Rg3 B3g4 Rgh3 Bd7 Rgg4 Bg7 Ra4 Qf6 Rd4 Qf3 Qd8 Qg2 Be7 Qf1 f8B Bh6 Bf6 Bg7 Be5 Bh6 Qg5 Bg7 Be7 Bf8 Bd8 Nf7 Qaa8 Rb4 Be7+ Kb5 Bf4+ Ka4 Bc5 Ka3 Bfd6 Rh2 Bd2 Kb2 Be1+ Ka1 Qa6 Rb5 Qc6 Rf2 Qa8 Nb6 Qe8 Nc8 Qed8 Be7 Qh8 Bf8
3b4/B2k4/Q1Rb4/1B1q1bn1/2rQ1Q1n/1rQ1R2q/B1pBp1R1/1RNN1K1n w - - 0 1 illegal: No possible last move, all moves rejected
1Brb2q1/B2Nb2r/k1nQ1Q1K/1N6/8/qB1pBbR1/NQ5p/q1RN1n1Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 e5 Kg4 d5 Kh5 Kd7 f4 Kc7 g4 Kb7 b4 d3 c4 e4 c5 e3 b6 d2 f6 d4 b5 e2 f5 e1Q g6 h6 g5 a4 g7 a3 f7 a2 g6 Rh7 f6 Be6 c6+ Kc8 b7+ Kc7 b6+ Kd6 c7 Kc6 c8N Bc4 Rh3 Kb5 Na7+ Ka6 Nb5 Bb3 N1c3 Qde8 Rg3 Ba3 f8Q Ne7 g8Q Qc6 f7 Bd6 g7 Bc7 Nge2 Qc4 Qh8 Nd5 g8Q Ne3 Qf6 Bd8 Qgh8 Nc6 Q8d6 Rc8 f8N Qg8 b8B Bd5 b7 d3 Bg2 Qg1 Nd7 Nf1 Ba7 Qc5 b8B Qa3 Qb3 d1Q Bce3 Be7 Rc1 a1B Na2 Be5 Bh3 Bf3+ Bg4 Bc3 Qb2 Ba5 Nec3 Qda4 Nd1 Bad8 Qh2 Qd4 Qh1 Qdc3 Qhg7 Qa1 Kg6 h5 Be6 h4 Bb3 h3 Qb2 Qe6+ Qgf6 h2 Kg5 Rg7+ Kh6 Qg8 Qdf4 Rf7 Q4d6 Rh7#
Nb1qqB2/1BQbr1Nk/nKNQ2Rr/3q1RRr/1pQ5/7p/2N3Q1/2n3R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 Kg7 Kd4 b5 Kc5 e5+ d6 h5 d4 h4 g4 b3 f4 e4 a4 b2 d5 c6 a5 e3 a6 b4 a7 e2 f6+ Kg6 f5+ Kh7 f7 e1Q g6+ Kg7 g5 h3 Qg4 Qd1 Ba6 Qf1 Ra5 Qd7 Bb7 Qc4+ Kb6 c5 Ne2 Qc3 Rg1 c4 Nd4 Qg3 Na3 b1R Nc6 c3 Qc4 Rh5 f6+ Kh8 g7+ Kh7 Nc2 Qf4 g6+ Kh6 Be3 Qg5 Bc5 Be7 f8N Qd2 f7 Nf6 g8Q Ng4 g7 Qe8 d7 Na6 d8Q Re1 d6 Nf2 d7 Qd5 Qc7 Nd3 d8Q Nc1 Ne6 Bd7 f8R Bd6 Rf5 Rc8 a8N Bh2 Qf8 Kh7 g8R Rh6 Ng7 Re7 Qg3 Rh5 Qg5 Bb8 Qg2 Rc7 Qf7 Re6 Bf8 Reh6 Qde7 Qd8 Qd6 Qe8 N2d4 c2 Rc5 Na2 Ra5 c1Q Nc2 Qcd1 Rb5 Nc1 Rg5 Q5d2 Rbf5 Qd5 Qfe7 Bc8 Qed8 Re7 Q8c7 Q1d3 Ne6 Bd7 R8g6 Q3e4 Ng7 Qd8 Rf4 Qee6 Rff6 Qf7 Rff5 Qfe8
1N3Q1B/KN3bb1/QR1N1r2/n1p2B2/3n1QB1/N1kq1B1n/2pRQ1b1/1r1q4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 Ke2 Kf7 Ke3 a5 d4 e5 f4 h5 b4 e4 g4 c3 b6 a4 f6 Ke6 f5+ Kd5 g6 c2 b5 h4 g5 a3 f7 h3 g7 a2 b7 c6 g6 h2 b6 Ne7 g8B Rh7 f6 Rh5 g7 Qe8 Bh7 Ng8 Ne2 Kc4 d5 Bc5+ Nd4+ Kb4 f8Q Be6 f7 Rh4 d6 Qd8 d7 Bc4 Qe2 Ra6 Bf5 Qc8 d8N Rh5 Bb2 Rg5 Bg2 Ne7 g8B Qd7 Na3 Ng6 Qd6 Nf4 f8Q Nh3 Rhd1 h1B Rd2 Bf7 Rb1 a1Q Bf3 Rg1 Qf6 Bd6 Ndb5 Bg2 Kd4 e3 Qe6 Be7+ Nd6 c5+ Kd5 Nc6 b8Q Rd1 b7 Bf6 Bg4 Be5 Bh7 Bg7 Bhf5 Na5 Qc7 Rc6 b8N Rg1 Qa6 e2 Nb7 e1N Bc3+ Ka4 Rb2 Qd1 Qe2 Ra6 Rb6 Qb5 Bd4 Kb3 Bf6 Bh6 Bh8 Bg7 Qce7 Kb4 Qg5 Kc3 Qf4 Rh1 Nc8 Qc4+ Kd6 Qe4 Kc7 Qd3 Ncd6 Rf1 Bc6 Nf3 Qa2 Nd4 Bcf3 Nab3 Kc8 Ra4 Kc7 Na5 Qae6 Rb4 Qc4+ Kb2 Qa6 Kc3 Bd7 Rb5 Qg5 Qf5 Nc6 Nf4 Kb8 Qg6 Be4 Be6 Ka7 Nh3 Nb8 Rf6 Bef3 Bf7 Qf4 Qd3 Bdf5 Rb1
RNr1Q1K1/bB6/1R2Nkpp/Q2qn3/2R5/1b2Bq1N/nQ1rRr2/N1qQ4 w - - 0 1 illegal: No proof kernel
6RB/R4p2/1BbbkN1B/b1Qqn3/5Q1n/r2r4/2QRN1pq/RqQ2BK1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Ra2 Kd7 Bh3+ Kd6 Kf1 c5 e4 g5 d4 a5 b4 g4 e5+ Ke7 e6 f3 h6 f2 b6 g3 b7 a4 h7 a3 b5 c4 d6+ Kf6 d7 c3 d5 c2 d6 Ra7 e7 Ra4 e8R Qe7 d8B Rg4 b6 Rc4 d7 Ra4 Nc3 Bg7 Ne4+ Ke5 Kg2 Bf8 Nf6 Nc6 Qe2+ Kd6 b8Q+ Kc5 Qd2 Qd6 b7 Nh6 Qd1 Rb4 Qc7 Rb3 b8Q Bb7 Ne2 Rg8 Nd5 Qf4 h8Q Nf5 Qa1 Kc4 Be3 c1B Qc2+ Rc3 Qa5 Bd2 Bdb6 Rh8 Rg1 f1Q+ Kh1 Rh5 d8R Q1f3+ Bg2 Rh6 h4 Rd6 h5 Nh4 h6 Qe5 h7 Qfe4 Rb2 a2 Rb3 Be7 h8B Q4f4 Qf1 a1Q Ra3 Bf8 Re7 Qb1 Qfc1 Ba8 Rd1 Qe6 Bf1 g2+ Kg1 Qh2+ Kf2 Qee5 Nf6 Rd3 Ra7 Qe4 Qbe5 Bd6 Ra1 Qd4 Qg3 Ne5 Rg8 Qe4 Bh6 Bc6 Qe3 Qd4 Nh7 Qc5 Qb4+ Kd5 Nf6+ Ke6 Qf4 Qd5 Qc5 Qg3+ Kg1 Ra3 Ne4 Ba5 Rd2 Qh3 Nf6 Qh2+
4Qq1N/1rRp2k1/1n4p1/1Qb1rRK1/R4BnN/N2BBq2/2R1b2b/1qN1B3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 a5 f4 e5 c4 d3 Ke3 e4 b4 d2 f6 a4 h6 a3 b6 a2 b5 Rh7 h5 Ra6 f5 Ra5 Kf4 e3 c5 e2 b7 e1Q b6 Ne7 c6 Ng8 c7 Qee8 Bd3 Qee7 Qe1 d1Q Ne2 Re5 Rh2 Re6 Be3 Qc1 Na3 Rh8 h7 Qb4+ Kg5 Nc6 b8Q Re5 b7 Nge7 h6 Qcb2 Nc1 Ng6 Rc2 Rg8 h8B Qa5 h7 Qd5 Qa5 Nce7 Qb5 Qe8 Qa8 Qc6 b8B Ba6 c8R Qf3 R8c7 Nc8 Qe4 Bc5 Qa8 Kf8 f7 Nb6 Qe4 Ke7 f8N Kf7 Qa8 Qb1 Qe4 Nh4 Ng6 Ng2 Nh4 g6 Bf6 Kf8 h8N Qd8 Be7+ Kg7 Qa8 Qf8 Qe4 Bd4 Bb4 Bc5 Bbd2 Na8 Be1 Nb6 Bf4 Ne3 Ba7 Ng4 Qa8 Re8 Qe4 Rb8 Qe8 Rb7 f6+ Kh7 f7 Kg7 Qb4 Bb5 Bf5 Be2 Qb5 Qb4 Bd3 Qbe4 Rb1 a1B Rb4 Be5 Ra4 Qb4 Beg3 Qb1 Be1 Qd6 f8R Qe7+ Rf6 Qf8 Rf5 Bed6 Bfd2 Bh2 Bf4 Qf7 Qd8 Re8 Qb8 Re5 Qe8 Nc8 Bb6 Qf8 Ba7 Bb4 Bc5 Nb6 Bce3 Bc5
1RR4R/2n2Qb1/qB3b2/2KN2p1/1rB1bQN1/3B3b/4pRnQ/nr1k2BQ w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 f4 d5+ Kc5 a5 c4 g5 b4 a4 f6 a3 f5 d3 f7 d2 b6 Ke3 f6 a2 b7 d4 h6 d3 h7 Bh6 f8B e5 f7 e4 h5 Bg4 b5 Bf5 b6 Qe8 Nc3 Ra3 Nh3 Qd7 Rh2 Ra8 Nf2 Nc6 b8Q Bg6 b7 Bg7 h6 Nb4 Be2 Nf6 Qh1 Rg8 h8Q Ne8 h7 Qe6 Ba3 d1B Rc1 Kd2 Qf4+ e3 b8R a1B Ng4 Bb3 Nd5 Nc2 Rf2 Be4 Bd6 Qh6 f8Q Nc7 Q8f7 Ra4 Be5 Re8 Bd4 Qa6 Bb4+ Bc3 Ba5 Na1 Bb6 Rb4 Qhh2 Bf6 Rc2+ Ke1 Bf1 d2 Bd3 d1N Kd6 Ba4 c5 Nb3 Qh3 Bh1 Ne5 Bd8 Rf3 Na8 c6 Na1 c7 Bd7 Rc1 Bg2 Qh1+ Kd2 Bc5 Bg4 Rf1 B4f3 Ng4 Bg7 Bd4 Bdf6 Rc6 Re6+ Kc5 Kc1 Bc4 Re4 c8B Rb3 Be2 Rb1 Bf5 Kc2 Bb5 e2 Rcc8 Nc7 Bg1 Ne3 Rf2 Kd1 Bg6 Reb4 Bgd3 Be4 Bbc4 Qb7 Qhg8 Bf1 h8R Qa6 Qgh7 Bfg2 Q7h2 Bh3 Qfg3 Ng2 Qe3 Bb2 Qef4 Bbf6
2b2NR1/1q1b1n2/KN1p2Q1/1B2BQ2/4Nrn1/3r3R/Q1rp1b2/BQ2NkrB w - - 0 1 illegal: No possible last move, all moves rejected
kBbRR1nQ/3p1pB1/4nN1N/5N1p/nrrb1K2/1N1B3R/1R3Q2/rqB5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 e4 h5 g4 a4 c4 d3 Ke3 d2 b4 a3 g6 a2 e6 Ra6 b6 Nf6 c5 Nh7 g5 Be7 e5 Ra8 g7 Ra6 g8Q+ Nf8 c6 Bc5+ Kf4 Bd4 c7 Bc5 b7 Ra4 g6 Ra7 g7 Bd4 b5 Bb2 b6 Nc6 b8B Ra5 b7 Rc5 Bd3 Na7 Qe2 d1R Qf2 Rb5 Nf3 Bd4 Nh4 Rh6 Nd2 Rg1 Qh8 Rb6 g8N Rb4 Rb1 a1N Rb2 Nc6 Nb3 Ne7 Rh3 Rhg6 Nh6 Ng8 N4f5 R6g4+ Kf3 Rh1 Ba7 Qg5 b8B Qg6 Bc5 Rd1 Be7 Rc4 Bf6 Qh7 Bg7 Re4 Nd2 Nb3 Kg3 Nc5 Nb3 Ree1 Kf4 Na4 Be3 Ra1 Bc1 Bb7 c8N Kd8 Nb6 Rh1 Nd5 Kc8 e7 Rd1 Nf6 Ne6+ Kg3 Ba6 e8R+ Kb7 Rd8 Ka8 Kf3 Bc8 Ke4 Nc7 e6 Rd2 e7 Ne6 e8R Rb4 Qh4 Rc2 Qf2 Rcc4 Kf3 Qg6 Ke4 Qg1 Kf3 Qd1+ Kg3 Qc2 Kf3 Qb1 Ke4 Nec5+ Kf4 Ne6+
NR3K1Q/1nr4r/p6B/3Rp1B1/3r1q2/bbRnp2Q/3k1B1N/N1N1qR1B w - - 0 1 illegal: No possible last move
2KQ1BBq/2R1N3/kp1nR1Nb/3rr2p/B1R5/2Qb4/1Q1n2p1/1r2rBRQ w - - 0 1 illegal: No proof kernel
BB2N1R1/2b1N2p/1qR2B1b/2rn1N2/NQ1n3Q/1b2p3/1QQ1r1pb/4K1Bk w - - 0 1 illegal: No proof kernel
b2N1q2/2pk1KQn/R3R2r/R1n3b1/2NN1QB1/4b3/BB1p1pbB/NR2r3 w - - 0 1 illegal: No proof kernel
6QN/3K1BR1/3r2QQ/4p1p1/1r1nB1N1/pqB5/k1rRbQp1/bR2R1Bn w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 a5 Kc4 g5 Kd5 d6 h4 a4 f4 g3 b4 a3 c4 g2 c6 Qb6 c7 Qa5 f6 Ra7 c5 Bf5 c8R Nd7 Kc6 Ke6 h5 d5 f7 d4 b6 d3 h6 d2 b7 Ngf6 b8Q Ne8 h7 Qd8 b5 Ng7 b6 Rg8 h8B Ra4 b7 Bg6 f5+ Kf6 Qh5 d1R Nc3 e6 Nge2 Rdd4 Ra2 Rac4 Rc7 Ke5 f6 Bh7 Be3 Rh4 Nd5 Be4 Nf4 Bh7 Bd3 Nf5 Be4 Qc8 Qg6 Rh2 Re1 Nb6 Rd2 Rb4 Bg1 Na8 Ne3 Bg7 f8Q Ng3 f7 Nh1 Qa7 Rh4 b8R Qb7+ Kd7 Rh6 c6 Qb6 Rcb7 Nc7 Qe8 Nb5 f8Q Nd4 c7 Bf6 c8B Bg7 Qa6 Qb5+ Qc6 Qa4 Ra7 Qb3 Ba6 Bf6 Bc4 Rg7+ Qef7 Rg8 Q8g7 Rc8 Qgg8 Bg7 Qa6 Rc6 Bcd5 Rc2 Qff8 Bf6 Qf1 Bg7 Qf2 Bf6 Qge8 Bf5 Qeg6 Bg4 Rc7 Be2 Rbb7 Rb2 Rcc1 Rc2 Rb1 Rh5 Qfh6 Rh3 Nf5 Rd3 Ne3 Bg7 Ke8 Kd6 Ng4 Kc5 Re7 Kb5 Kd7 Ka4 Rf7 Nf5 Re7 Ba1 Bc3 e5 Rg7 Nd4 Bf7 Qc4 Bb2 Kb3 Bc3+ Ka2 Qg6h7 Rcb2 Ng6 Rc2 Nh8 Qb3 Q7g6 Nf5+ Kc7 Rd6 Kc8 Nd4 Kc7 Rc6+ Kd7 Rd6+
3R2K1/1p3nB1/ppN2b2/1Nk2q1p/Q1n1QNQB/1B1RN3/4r1Qr/r2B1b2 w - - 0 1 illegal: No proof kernel
n2QRR1r/Bb3q2/QQ1Nq1qq/2Q2Q1q/2Q3Q1/2N3r1/Rn1N3K/4kb2 w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 g6 a4 Bb7 axb5 Bc8 f6 Kd7 f7 Bg7 Nh3 Bh6 Ng1 Bf8 g4 Bg7 h4 Bb7 f4 Bf6 f5 Ba6 g5 Qc8 Bd3 Bc3 f6 Qd8 Bc2 Be5 Bf5+ gxf5 g6 Bf4 Ra3 Be3 Ra1 Bg5 hxg5 Bc8 Kf2 Kd6 Kg3 Kc5 f8N Kb4 d4 c5 b3 h5 g7 a5 b6 e5 g6 e4 d6 h4+ Kh3 f4+ d7 a4 f7 f3 d5 c4 d6 c3 b7 c2 Nd2 Kc3 b4 a3 b5 f2 b6 f1B+ Kh2 h3 Qf3+ e3 Qf5 e2 Nh7 e1Q f8Q a2 Ng5 Na6 b8Q Nh6 g8Q Qe6 b7 Nf7 g7 Qde7 d8R Nc7 d7 Nd6 Re8 Q7f7 d8Q Nc4 Qa7 Nb2 b8Q Bb7 Qa6 Ra7 Qfe7 Na8 Rf8 Qfg6 Nf7 Bfg2 Qbd6 Bf1 Qab6 Ra3 Qa6 Bfg2 Qd6b6 Rb3 Nd6 Qef7 Rb1 a1Q Re8 Qa3 Ra1 Qa2 Qeg5 Ra3 Qgg4 Qac4 Qf8 Qce6 g8Q Bf1 Ra2 Bfg2 Kg3 h2 Qfe7 Bh3 Qec7+ Nc4 Qcc5 Rb3 Ba3 c1Q Rf8 Qc2 Bc1 Qh5 Ba3 Qce4 Ne2+ Kd3 Rc1 h1Q Nc3 Qeg6 Re1 Qhh6 Ncb5 Nb2 Nc3+ Kc2 Re3 Kc1 Bb4 Qee6 Ba5 Qd1 Kh2 Qf3 Qgc4 Qfh5 Qg7 Ra3 Qgd4 Rb3 Qdg4 Ra3 Qbb4 Rb3 Bb6 Ra3 Ba7 Rb3 Ne2+ Kd1 Qbb6 Ke1 Re5 Rg3 Re3 Qef6 Ree8 Q6e6 Nc3 Bf1+
br4Q1/1Nn1N1N1/Rn1r1r1N/K2RN1k1/p1B2N2/5n2/1r1qN1p1/QR2Q3 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 g3 Be6 axb3 Nc6 b4 Bc8 b5 Nb8 f5 h6 b3 e6 Bb2 Be7 Bd4 Bb4 Be3 Bd6 Bg5 Bf4 gxf4 hxg5 d4 Kf7 Kd2 a5 Kc3 c5 h4 c4 d6 e5 b4 g4 h5 g5 b6 g3 b5 e4 d5 e3 d7 g2 d6 e2 h6 e1R b7 g4 h7 g3 b6 Re5 Nh3 g1N Qe1 Na6 b8Q g2 b7 Nb4 Qa7 Qe7 b8N Rc5 d8N+ Ke8 f7+ Kf8 d7 Kg7 f8N Kh6 f6 Re5 f7 Qe8 f5 Na6 f6 Bb7 Nbc6 Ne7 Nfe6 Qg8 f8Q+ Kh5 f7 Re4 Ne5 Re2 Ng7+ Kh6 Nf4+ Kg5 Qd4 Bf3 Nb7 Rb2 d8R Rc8 Rd5 Rb8 Qd8 Be4 f8N Nf3 N8g6 Nc7 Rh6 Qf7 Qg8 Nc8 Ne7 a4 Ra6 Nb6 Qdd1 Qf6 Bd3 Qh6 Be2 Ra2 Kb4 c3 Ka5 c2 Nc3 c1R Rb1 Rb2 Bc4 Qd6 Qd4 Rd1 Nce2 Rf8 Qdc3 Rf6 Qa3 Qd7 Qa1 Rd3 Qf7 Rg8 h8N Rb8 Qg8 Rdd2 Nef5 Rd1 Nh6 Rd4 Nhg6 Rd3 Rb5 Rdd6 Ne7 Bd5 Nc5 Ba8 Nb7 Qe6 Rc5 Qd5 Rb5 Qd1 Rd5 Qd2+
2n1Q1bk/1bQ3RB/B1N4q/n3K3/pR4b1/QnB1pRR1/1RrR3b/4R3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bb7 f6 Bh6 f5 Ke8 Nc3 Bc8 Nce2 Bf8 g4 a6 h4 Be6 Nf4 gxf4 g5 Bd7 g6 Bc8 Be2 a5 Bc4 Ra6 Bf1 Rc6 Qb3 Rc3 Qa4 Rg3 Qd1 Rg5 hxg5 Bd7 Nh3 Be6 Ng1 Bc8 Ke2 h5 Kd3 e5 Ke4 c5 d4 c4 b4 a4 g7 Kf7 d6 c3 d7 c2 b6 f3 d5 h4 b7 f2 b5 h3 b6 h2 d6 Rh7 Qe2 Be7 Bd2 c1N Ra3 Na6 b8R Rh5 b7 Nb3 Nf3 Na5 Bc3 Qc7 d8Q Bf8 d7 Bc5 Nd4 Nc4 Nc6 Qa5 Qc7 Nh6 g8R Qb6 d8R+ Be7 Rd2 Na5 Rg7+ Kf8 g6 Nc5+ Kd5 e4 f7 Ncb3 Ke5 Ng8 Qf3 Qe3 Ba6 Qh6 Re1 h1B Qd3 f1B Qdd6 Nc1 Rb3 Bd3 Qa3 Bc4 Rbb2 e3 Ra8 Na2 b8R Rh2 R8b4 Nc1 Rab8 Be6 Rg4 Rf2 Rg3 Ncb3 Rb7 Bf3 Rb4 Bg4 Ke4 Nc4 Rh7 Bf6 Rgg1 Rf3 Rd7 Bh4 Rgg2 Bf2 Rg3 Qg5 Rh2 Nca5 Re7 Nd4 Ke5 Rf4 Rd7 Qh5 Re7 Kg7 f8Q+ Kh8 Qe8 Qh6 f6 Bb7 f7 Bg1 f8R Rf2 Rff3 Rc2 Rd2 Ndb3 Red7 Bh2 g7+ Kh7 Rdf7 Ne7 g8B+ Kh8 Rg7 Nc8 Bh7+ Bg8
N3Q1n1/1r1n2R1/2r3N1/1R2pQ1b/p2Q1pRB/k1r2N2/4QQ1N/3Kn1N1 w - - 0 1 legal: proof: c4 b5 b4 h5 a4 d5 cxd5 c6 axb5 h4 b6 h3 b5 Be6 b7 Bg4 b6 Nf6 gxh3 Bc8 h4 Rg8 h5 Nh7 Bg2 Rh8 Be4 Nf6 Bd3 Ng8 e4 Kd7 d6 Nf6 Bb5 cxb5 d4 Kc6 d7 Qc7 d5+ Kc5 d6 Ng8 Qg4 Kc6 Qe2 Rh7 Qd1 Rh8 f3 e6 f4 Be7 f5 Kc5 f6 Qc6 fxe7 Qd5 Qf3 Kd4 exd5 Ke5 Qd1 Kf6 d8Q Ke5 e8N g5 h4 a5 d7 f5 h6 g4 d6 g3 h5 g2 h7 b4 h6 a4 Bg5 f4 Nd2 Kd5 Nf6+ Kc5 Qe8 e5 d8Q b3 d7 Kb4 Qe2 b2 Rh4 b1N Rg4 Na3 Kd1 Ra6 Bh4 Nc4 Ndf3 Nc6 b8R Nd4 b7 Na5 Qb6+ Nb5 d8Q Bf5 Qbf2 Nc7 Qdd4+ Nc4 Qe6 Bb1 Qf5 Ne6 Rg7 Rd6 Ng4 Nc5 Ngh2 Nd7 Rg4 Be4 Rb1+ Ka3 Rb5 Rf6 Re8 Bd5 b8N Rc6 Na6 Bf7 Re7 Nd2 Nc7 Bh5 Na8 Rc3 Ng5 Nf3 Rg7 Ne1 N5f3 Rc6 R7g5 Ngf6 Rg7 Rhc8 h8N Ng8 h7 R8c7 Ng6 Rb7 Nh3 g1R h8Q Rg3 Nhg1 Ngf6 Qe8 Ng8 Nd2 Rb3 Ndf3 Rbc3
2b1r3/2Q2B2/k3qB2/2b1K2n/Nq4pN/RN1r1B2/NB1n1NqQ/2r2QB1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 Kc7 e4 Kb6 h4 f5 d4 a5 b4 c4 d6 c3 h6 a4 d5 g6 h5 a3 d7 c2 h7 a2 h6 Qe7 d8Q+ Kb7 b6 Bg7 d6 Nf6 d7 Ra7 b5 Ra8 e6 g5+ Ke5 g4 Bg2 f4 Bb2 c1R Bf3 Rc2 Nd2 Rc1 Qf1 Rb1 Nb3 Rd1 Nh3 Rd3 Nf2 Ra4 Qc7+ Ka8 d8B Ba6 b7+ Ka7 Rh4 Qe8 e7 Qd7 e8N Rad4 Nd6 Rc4 Nf5 Rg8 h8B Qc8 h7 Rd1 Rh6 Rd7 Nh4 Ne8+ Bf6 Bf8 Bhg7 Rc1 h8Q Bc5 Bf8 Bb6 Bc5 Ng7 Nh1 Qf8 Ng6 Rc2 Bg2 f3 Qe1 f2 Bfe7 f1Q Nc1 Rd6 Bf3 Rd7 Bg1 Ne8 Nf2 Nc6+ Ke6 Rc3 b8N+ Bb7 e5 Rc4 Na6 Rd3 Nb4 Bc5 b6+ Ka8 Qd1 Qg2 Qf1 Bd6 Bh4 Ba6 b7+ Ka7 b8N+ Bb7 N8a6 Na5 Nc5 Nb3 Na4 Nf6 Kf5 Be7 e6 Nd2 Ke5 Qb8 Bg5 Bc5 e7 Rf8 e8B Rg8 Qd6 Bc8 Bf7 Qb7 Qc7 Re8+ Ne7 Rcc3 Rg6 Rc2 Qh2 Nh5 Re6 Rcc3 Ng6 Rc2 Rb1 a1Q Bf6 Qa2 Nh4 Qc4 Nb3 Rcc3 Ra1 Rc1 Qc6 Qb6 Ra3 Qbb5 Na2 Qb7 Qd6 Qbb4 Bc6 Ka6 Qc7 Rdd8 Ba8+ Rd6 Bc6 Rd3 Bf3+ Qxe6+
1n2N2R/3Rr1q1/3N2QQ/1p1n1BKN/k5Nn/1r2r1b1/N6Q/1QQ1bR1r w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Nc6 bxa3 Bd7 a4 Bc8 a5 Nb8 f4 h6 f5 Qd6 f7+ Kd7 Bb2 Ra7 Bf6 Ra8 Bg5 hxg5 f6 Kd8 Ne2 Bf5 gxf5 Kc8 Ng1 Qd8 Qf3 Kd7 Qe2 Nc6 Qd1 Nb8 Ke2 e5 Kf3 b5 Kg4 c5 a4 c4 h4 e4 d4 g6 a6 e3 d6 Kc6 a7 e2 a5 e1N d5+ Kc5 a6 Kb4 d7 c3 h5 c2 h6 c1R d6 Rc8 h7 Qe7 d8N Rc3 d7 Bh6 f8Q Nd3 f7 Bg7 f6 Bh6 Nf3 Rc1 Nc3 Ne1 Na2+ Ka3 Nh2 Nc2 Bd3 Nb4 Qg7 Nc2 f8Q Ka4 f7 Rb1 Nb7 Rb3 d8R Nb4 Bf5 Nd5 Qb1 Qc7 Qd6 Nge7 Rd7 Re8 h8Q Qc3 Qgh7 Qg7 f8N Re3 Ne6 Rb3 Be4 Nf5 Nf4 Nh4 Nh5 Re7 Bf5 Rbe3 Qg3 Rb3 Qgd3 Re3 Nd6 Re7 Kg3 g4 Rf1 Bg5 Qh6 Bd2 Qc1 Bc3 Qdb1 g5 Qg8 Qd4 Qgg6 Qg7 Bd3 Ba5 Rf8 Bd2 Rh8 Bc3 Bf5 Be5+ Kf2 g3+ Ke2 g2 Ng4 Bc3+ Kf2 g1B+ Kg3 Bb6 Kh3 Bc7 Kg3 Nc6 Kh3 Rd8 a8Q Nb8 a7 Rde8 Qc6 Bb4+ Q6c3 Bba5 Qg3 Be1 a8N Ree3 Nb7 Bf4 Nc7 R8e7 Nd6 Be5 Nf2 Bf4 Kg4 Be5 Qh2 Bf4 Nf6 Bg3 Kh5 g4 Nce8 Be5 Kg5 g3 N2g4 g2 Nh5 g1R Bd3 Rf1 Bf5 B5g3 Qc5 Qd4 Qbb2 Bd2 Qcc2 Rh1 Rf1 Ba5 Qbc1 Qg7 Q2b1 Bae1
1q1NQB1Q/r1b1N3/2pr1Qn1/6Nb/p1k5/4B1Q1/1R1b1NQN/br1B3K w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 b4 h5 f4 Nh6 f5 Rh7 g5 Kd7 f7 Ng8 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Bd3 Na6 Bf1 Nc5 Bg2 Ne4 Bf1 Nef6 gxf6 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Kd6 Kg2 g5 d4 a5 h4 e5 b6 g3 b7 c6 b8Q+ Qc7 h5 g4 h6 e4 b5 a4 h7 e3 b6 e2 b7 e1B Nd2 Bd7 Qe2 Be6 Ngf3 Ra5 Rh2 Ra7 Kh1 Bg7 f8N Bc8 f7 Ra6 f6 Bf2 Ne6 Ra5 f8N Ra7 f7 Be5 Ng6 Ne7 f8B Bg1 Ne4+ Kd7 d6 Bf4 d5 Bd4 N6g5 Bd2 Qg2 Ba1 Nf2 Rg8 Qa8 Qb8 h8Q Rg7 Ba6 Rh7 Be2 Rh6 Nf4 Ng6 Bd1 Kd8 d7 Kc7 d8N Kb6 d6 Kc5 Nd5 Kc4 Ne7 Be6 d7 Bf7 Qh3 g2+ Kg1 Qc7 b8Q Qb6 Qbg3 Qb8 Qb7 Be8 Qbb2 Bf7 Qbf6 Be8 Rh1 Bf7 Kh2 g1B+ Kg2 Be8 Rh2 Bf7 Kh1 Be8 Nd3 Bb6 Qhg2 Bc7 Nf2 Bf7 Nb7 Be8 d8Q Bf7 Q3h3 g3 Qe8 Nh4 Nd8 Bh5 Qfg7 Rd6 Qf6 Bb4 Be3 Ng6 Qg1 Bbc3 Rg2 Be1 Nh2 Bea5 Nd3 Bb4 Rb2 Be1 Nf2 Bd2 Qe1 g2+ Kg1 Qb3 Qf1+ Rd3 Bc2 Qb4 Qg3 Qb8 Nhg4 Ne5 Kh2 g1R Qfg2 Rb1 Bd1 Rd6 Kh1 Ng6 Nh2 Rd3 Q2f3 Rd7 Qfg2 Rd6
n2r2BK/nQ1Q1b1b/1rQ3Rq/4Q1bN/2r1Q2Q/4Q1B1/1nNq4/1Bk2B2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 h4 g5 hxg5 a5 b4 Kd7 b6 Ke8 b5 Ra6 Ra4 Ra8 Rb4 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 f4 b3 d4+ Kb4 g4 c5 f6 h4 b7 h3 b6 b2 d6 c4 d7 c3 f5 c2 f7 Kb3 g6 h2 g5 e6 f6 Ra7 d5 Be7 f8Q Nh6 f7 Ra4 g7 Rg4 g8B Rh4 g6 Bc5 d6 Rh7 g7 Rg4 Qd4 Ka2 Nh3 Rg6 Na3 b1B Bf4 c1R Bg3 Rc4 Nc2 Na6 b8Q Nc7 b7 Nf5 Qe3 Kb2 Qe7 Rh8 f8Q Nd4 Rg1 h1Q Qfe8 Ndb5 Bh7 Na7 g8B Na8 Nf4 Qh6 Nh5 Bb4 Qh4 Bd2 Qhe4 Kc1 Qc7 Rf6 b8Q Bb7 Rg2 Bd5 Qc6 Qa5 d8Q Qc3+ Q3d4 Bg5 d7 Qd2 Qde3 Rg6 Qbb7 Rf6 Kd6 e5+ Ke7 Be6 Qdc7 Bf7 Qh4 e4 d8Q Bd5 Qe5 Bf7 Qf2 e3 Qdd7 e2 Qfe3 e1N Q5e4 Qg6 Kf8 Nd3 Q8e5 Nb2 Rg1 Rd6 Rg2 Qe6 Bf5 Rh6 Kg7 Rg6+ Kh8 Rd3 Qdc7 Rd8 Q7d7 Qd6 Bf4 Rf6 Rg4 Qf8 Bg3 Qh6+ Bh7 Bf4 Rg6 Bg5 Qcc7 Ra6 Qcc6 Rb6 Q4f3 Qf8 Re6 Rbb4 Ne1 Ba2 Rh6 Bb3 Bb1 Bc2 Qff5 Be4 Nc2 Rb6 Qff4 Bf5 Qfe4 Bh7 Rg6 Qh6
KrB1B2Q/bnQ2B1R/N7/4Q1B1/b2QrN2/q2qn2b/1q2bB2/k1B1B3 w - - 0 1 illegal: No possible last move
1Kb5/1n2B3/1B1p2kn/BR3qr1/1R2QB1r/n1Q2b1p/4B1rN/Q1Q1B1B1 w - - 0 1 illegal: No proof kernel
Q1R2r2/2B4R/B1B4p/2Kbbn1k/1R1QN3/7p/1q2prrR/1nB1BBB1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 f5 exf5 b4 h5 b3 axb3 Nd7 b4 Nb8 b5 Be6 Ne2 Bd7 Ng1 Bc8 g4 Bd7 h6 Na6 Nf3 Bg7 Nc3 Qc8 Ne2 Nb8 Nh4 gxh4 g5 Bf8 g6 Qa6 Ng1 Bc8 Bc4 Qf6 Bf1 Qg7 hxg7 Kd8 Bc4 Kd7 Bf1 Ke8 Ke2 e5 Kd3 a5 Kc4 c5 b4 e4 d4 h3 f4 a4 f6 e3 b6 a3 b5 h6 b7 a2 b6 e2 f7+ Ke7 f5 Kf6 d6 Ra6 d7 Rh7 d8R Be7 f8B Nd7 b8B Ra5 b7 Ra8 d5 Ra6 d6 Ra3 Nf3 Re3 Ng5 Re4+ Qd4+ Re5 Rh2 Rh8 Bc7 Nb8 d7 Nc6 b8R Na7 Rb4 Bb7 Rc8 Bd6 d8Q+ Ne7 g8B Nb5 g7 Nc3 Bd5 Nb1 g8B Bc6 Bf3 Bd5+ Kb5 c4 Kb6 Bb7 Bc6 c3 Bc4 c2 Ba6 Ba8 Ne4+ Kf7 f6 Kg6 f7 Rf5 Ng5 Be5 Ne4 Rf2 Kc5 Kh5 Bg7 Re8 f8B Nf5 Bf6 Bb7 Bh4 Rg2 Bfe7 Rf8 Be1 Ba8 Beg5 Rf2 Bce3 Rg2 Bg1 c1R+ Kd5 Rc3 Bc1 Rf3 Kc5 Rff2 Q8d5 Nd2 Rab1 a1Q R1b3 Qb2 Rg3 Qa3 Rg7 Nb1 Rh7 Qa1 Bd7 Qa2 Qb7 Qb2 Bc6 Qd2 Qa7 Bb7 Qa8 Qb2 Bd7 Bd5 Be8+ Kh4 Bc6 Kh5
7R/n1Bp1N2/2b1pQ2/Q1Qn2n1/1b2Q2n/4p2k/1KBQ1Q2/qNB1Q1rB w - - 0 1 legal: proof: d4 h5 e4 c5 dxc5 b5 a4 h4 axb5 h3 f4 Nf6 f5 Rh6 gxh3 Rh8 h4 Ng8 h5 Rh6 Bg5 Rh7 Bc1 Rh8 b4 a5 e5 Ra7 Ra3 Ra6 Re3 Rf6 exf6 Qc7 Re4 Qd8 Re6 fxe6 Kd2 Kf7 Kc3 g5 h4 a4 c6 e5 b6 e6 b5 e4 c7 e3 b7 g4 b6 a3 h6 a2 h5 a1N h7 g3 h6 g2 Nf3 g1N Ne5+ Ke8 f7+ Ke7 Bd3 Kf6 Qd2 Kg5 f6 Qe8 Kb2 Nh3 c4 Kh4 c5 Nc2 c6 Na6 b8Q Be7 f8Q Na1 f7 Nf6 b7 Bd8 Qc5 Rf8 h8Q Ne4 h7 Nf6 Qba7 Nd5 b8B Qe7 Bc2 Rg8 f8Q Nab4 Qaa5 Rg1 Nf7 Nb3 Qe5 Bb7 c8Q Nd4 c7 Nbc6 h8Q+ Kg4 Qh7 Na7 Qf6 Bc6 Qe4+ Kg3 Qb7 Ng5 Qbb4 Nf5 Rh8 Nh4 c8B+ Kh3 Bc7 Qd6 Ba6 Qf4 Bb7 Be7 Qe1 Qg4 Qff2 Qd1 Qh6 Bf8 Qhf6 Qd4+ Qbc3 Qa4 Qcd2 Bd6 Ba6 Be7 Be2 Bd6 Bf3 Be7 Bh1 Bd6 Qcc4 Bb4 Qcc5 Qa1+
n1R2b2/qN3R1p/q3QR2/1B1b2KB/1B5q/Rr2B1B1/pQn3k1/2RB2b1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bb7 f6 Bh6 f5 Ke8 Nc3 Bc8 Nce2 Bf8 g4 a6 h4 Be6 Nf4 gxf4 g5 Bd7 g6 Bc8 Be2 a5 Bc4 Ra6 Bf1 Rc6 Qb3 Rc3 Qa4 Rg3 Qd1 Rg5 hxg5 Bd7 Nh3 Be6 Ng1 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 b4 Ke4 d4 e5 g7 c5 f7 f3 d6 c4 d7 f2 b6 a4 b7 a3 g6 c3 f6 c2 b5 Qb6 d5 Bb4 f8B Qa7 f7 Na6 b8Q Qb6 d6 Qd8 b6 Ba5 b7 Bc3 Qe2+ Kd5 Nf3 e4 Be3 c1Q Ng5 Nc7 Ne6 Nb5 Nc5 Ne7 g8B Nf5 g7 Bd4 Qe1 Qa5 d8R Nc7 d7 Na8 Kg5 Qa7 Bb5 f1Q Be7 Qf2 Rf8 Qc4 d8R+ Bd7 Rc1 a2 Rc8 Be6 Rh3 Qca4 Qh2 Q4a6 Rg3 Ke5 b8B+ Kd5 Nb7 Bc5 Qb4 Nd4 Qb2 Nc2 Qh6 Bd4 Bb4 Bb6 Bed2 e3 Qg6 e2 Ra3 e1B Be3 Bc5 Bg3 Bd4 Qh6 Ke4 Qf6 Bd5 Qe6+ Kf3 Rc6 Q6b6 Rfc8 Qaa6 f8R+ Kg2 Bf7 Qba7 Bh5 Bc5 Rf5 Bf8 g8B Bc3 Bgf7 Bd4 Bd1 Qe1 Rf3 Qh1 Bh5 Qh4+ Kf5 Bdc5 R6c7 Rg8 Rf7 Rg4 Rf6 Rc4 Rf7 Rc3 Rf1 Rb3 Rf4 Qh2 Kg5 Bd4 R4f6 Bb6 Bed2 Bg1 Be3 Qh4+
2R2RRN/p1rB2b1/2Q4n/kp3QN1/b1n1Qp2/r3QQ2/3b1K2/2b2RRR w - - 0 1 legal: proof: f4 e5 fxe5 h5 b4 c5 bxc5 h4 a4 h3 a5 Rh4 gxh3 Rh6 h4 Rh7 h5 Rh8 c4 b5 c6 d6 c7 Qe7 c5 Rh7 c6 Rh8 Ba3 Qg5 Bc5 Qe3 Bb4 Qb6 Bc5 dxc5 axb6 Bd7 Qc1 Bh3 Qd1 Bc8 e4 f5 d4 g5 h4 g4 h6 c4 h7 f4 d5 c3 e6 g3 h5 g2 d6 c2 e7 c1B e5 Bb7 c8Q+ Kf7 e8Q+ Kg7 e6 Kf6 h6 Ke5 c7 Be7 d7 Bca3 d8Q Bf8 e7 Nf6 Q8d6+ Ke4 Nf3 g1B Nc3+ Ke3 Ne4 Na6 Neg5 Rg8 h8R Nc5 h7 Na4 Nf7 Rg6 N3g5 Ng4 Qf5 Re6 c8R Nb2 Qdc6 Nc4 Bh3 Nh6 Rg8 Bc1 h8R Bg7 Qdf3+ Kd4+ Kf1 Bge3 Rg1 Bed2 Kf2 Rb8 Rh7 Re3 Nh8 Ba8 b7 Kc3 Qeg6 Kb4 e8Q Rc3 Qee3 Ra3 Rcf8 Rc8 b8R Rc7 Rbc8 Ka5 Qge6 Bcb2 Raf1 Bbc1 Qce4 Bd5 Qc6 Nf7 Rh4 Nh6 Bg4 Be6 Rhh1 Bf7 Qh7 Bd5 Bd7 Bf7 Qhf5 Bh5 Q3h3 Bd1 Qhf3 Ba4
n1QBrN2/n1Q2NK1/b3Q2N/r2qbr2/2R5/kb1RQ1N1/6bQ/4RQn1 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 exf5 b4 cxd5 b3 axb3 Bd7 b4 Be6 b5 Bc8 b4 g5 hxg5 a6 b6 Qd6 b7 Nh6 b5 Qd8 b6 Ng8 Bb5+ axb5 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 h5 g4 c5 f4 h4 g6 e6 g7 c4 g5 h3 f6 h2 g6 c3 d6 c2 d5 Ne7 g8Q Rh5+ f5 Rh4 g7 Qe8 d7 Na6 b8Q Nc7 d8Q Rh7 b7 Rh6 d6 Rh7 f7 Ra3 Kf6 e5 d7 e4 Nc3 e3 Qd4+ Kb3 Nge2 b4 Ne4 Nc6 N2g3 e2 Re1 h1B Nd6 Na8 Bg5 c1N Qbc7 Bg2 b8Q Ba6 Qdc8 Qe4 d8R Ra5 Ra4 Qd5 Qe3+ Kb2 Kg6 b3 f6 Na7 Rc4 Rh5 Bh4 Be7 f8Q Ka3 Qge6 Rf5 f7 Bf6 g8N Bg7 Nh6 Be5 Qf2 b2 Qe3+ Nd3 Rd7 b1B Bd8 Bc2 Kh7 Bb3 Kg8 Rf6 Kg7 Nf2 Qh8 Bb5 f8N Nh3 Ndf7 Ba6 Qb5 Ng1 Qh7 Qd6 Qc2 Qc5 Rd3 Qd5 Rf1 e1R Qcf2 Re2 Re1 Bh1 Qh2 Bg2 Qf3 Re3 Qbb6 Re2 Qf1 Re4 Qe3 Rf5+ Qf6 Bd6 Qg6 Re8 Qge6 Be5+
2R1RNk1/RNq3rn/qQp3Q1/N4N1b/rB3Q2/8/NNq1nKQ1/r6q w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 h5 e4 f5 exf5 b4 g4 b3 g5 e6 Bh3 Bb7 Bg4 hxg4 axb3 Bd6 b4 Be7 b5 Bf6 gxf6 Bc8 h4 Kf8 d4 a5 b4 g5 b6 g3 b7 c6 h5 a4 h6 a3 b5 g4 f7 a2 h7 e5 d6 g2 d5 g3 b6 e4 d7 e3 d6 e2 Na3 Kg7 f8N Ne7 f6+ Kf7 f5 Qe8 Qd2 Rg8 h8Q Ra4 Qh7+ Rg7 Qg6+ Kg8 d8N Ra5 d7 Ra6 Nfe6 Qf8 Nc4 Nd5 Nd4 Ra3 Nb2 Qd6 f7+ Kf8 Rh8+ Ke7 f8R Qf4 f6+ Kd6 Re8 Nc3 f7+ Kd5 f8N Qc7 Qdc2 Ra7 Bg5 Ra4 Be7 Ke5 Bb4+ Kd5 Rc1 a1Q Nf5 Qa2 Ra1 Qa3 Kd2 e1R Ne2 g1Q Nc1 g2 Na2 Qh1 Kd3 Rd1+ Ke3 g1Q+ Qf2 Qg4 Qg2+ Qe4+ Kf2 Ne2 Rg8 Na6 b8Q Nc5 b7 Ne6 Qa7 Ng5 b8Q Nh7 Qab6 Qd3 Nb7 Qa6 d8N Bd7 Qh2 Qc2 Na5 Be6 Ndb7 Bf7 Qhg1 Rb1 Rc8 Ke5 Q6g2 Kf6 Re8 Bh5 Rh8 Qf7 Qf4 Qc7 Rc8 Kf7 Qgg5 Qb8 Q1g2 Qac4 Ne6 Bg6 Rhe8 Q4d3 Nb3 Ra3 Nc3 Bh5 Nf8 Qc7 Qg6+ Kg8 Ra2 Ra8 Ra4 Ra5 Na2 Ra1 Ra3 Rb5 Raa8 Ra5 Ra7 Ra4 N3a5 Qa6
2Rr4/q2k4/3bq2p/R1R2N1r/n2pqN1Q/R1Q2Q1R/q1RN2N1/4K1Bn w - - 0 1 illegal: No possible last move, all moves rejected
3q1N1r/QnB1r2p/3bK3/RN6/N1B2NBB/1Nb3B1/1q1rN3/2n1B1nk w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Nh6 b4 Na6 f5 Rg8 Ra3 Bd7 Rf3 Nb8 Rf2 Rh8 Rf4 gxf4 h3 Ng8 g5 Be6 Ba3 Bf7 Bb2 Bh5 Bc1 Bg4 hxg4 Bh6 Qb3 Bg7 Qd1 Bf8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 d4 a5 g6 e5 f7 c4 g5 a4 b6 c3 b5 f3 f6 f2 Kf5 a3 g7 a2 g6 a1N b7 e4 b6 e3 Bd2 e2 Na3 e1R Bc4 c2 Nb5+ Kd7 d6 Kc6 d7 c1B d5+ Kc5 d6 Re6 Ne2 Na6 b8B Qc8 d8B Nc2 d7 Nab4 b7 Na3 Rh5 Bd6 f8N Re7 f7 Na6 Qg1 Qc7 Be1 Nf6 g8N Ng4 g7 Nb1 Nf6 Ne5 g8B Bd2 Ng6 Nf3 f8N Nc3 Ngf4 Na2 N6d5 Bc3 Be6 Nc1 Nb6 Ra7 Qg7 f1Q Na4+ Kc6 Qg1 Nc5 Qd4 Qa5 Bdc7 Ng1 d8B Qf2 Qg7 Rd7 Bh4 Qd4 Rg5 Qd2 Qd4 Qb2 Kf6 Re7 Bg4 Ra8 Ba7 Rd8 b8N+ Kb7 Nbd7 Kc6 Kf5 Nb7 Ndc5 Rdd7 Bab6 Qa8 Nb3 Qd8 Bh5 Bc5 Qg7 Rd2 Bg4 Ba3 Bbf2 Bd6 Bg8 Ba5 Bfg3 Bc3 N4e6 Kd5 Qd4+ Kc6 Qa7 Kd5 Bf7 Rd4 Kf6+ Ke4 N6f4 Ke3 Bc4 Ke4 Bd7 Kf3 Bh3 Rd2+ Re5 Rg7+ Ke6 Rf7 Nd5 Rg7 Bg4+ Kg2 Ndf4+ Kh1 N5d4 Qa2 Ra5 Qb2 Nb5 Re7+
1r1R2R1/1BBnB2R/3q3N/rBrn3p/2B2k2/R2br2R/N3r3/1K3NbB w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 Nc6 c4 Bb7 cxd5 Bc8 Qb3 Ra6 axb5 Nb8 b6 Ra7 b5 Ra8 Qb4 axb4 Kd1 Ke7 Kc2 h5 d4 c5 g4 f5 e4 f4 g6 c4 b7 f3 e6 Kf6 g5+ Ke7 b6 Kd6 e7 f2 e8B c3 g7 Ra3 g6 Bh3 e5+ Ke7 e6 Kf6 e7 Kf5 d6 Rh6 d7 Nf6 g8R Ne4 g7 Rh8 d5 Qc7 d8R Ra7 d6 Qc5 d7 Qd6 Bc4 f1R Bg5 Bg2 Ra3 Rf4 Nd2 b3+ Kb1 b2 Ne2 Ra8 Nf1 Rh7 Nc1 Ra6 Na2 Rf2 Rh3 Nf6 Rh8 Ke5 g8B Ra5 Bgd5 Rc2 Bc6 Rg7 Rh7 Be4 Bg6 Rf7 e8B Nd5 Be7 Bd3 Be4 Kf4 Bh1 Bg7 B6b5 Bd4 Bc6 Bg1 B6b5 Na6 b8B Nc5 b7 Rf5 Bc6 Re5 Bc7 Re3 b8R Na6 Rdc8 Nc5 d8N Nd7 Nf7 Re4 Rd8 Re3 Nh6 Re5 Nc1 Re3 Ka2 b1R+ Rb2 Rd2 Bb7 c2 Rb5 Rb2+ Ka1 Rb4 Na2 Rh2 Rc5 Rb6 Rb5 c1R+ Rb1 Rcc2 Rb4 Rbb5 Kb1 Rc5 Rb6 Rhg2 Ra6 Rg8 Raa8 Ne5 Beb5 Re8 Rd7 Rb8 Rd8 Nd7 Ra6 Qe5 Rg6 Qd6 Rgg8 Rce2+
2q3R1/1N1N2N1/rQ3qq1/r2NrQ1R/4Q2Q/N3BbRb/3rk3/1K3qR1 w - - 0 1 legal: proof: f4 b5 d4 e5 g4 h5 e4 f5 a4 d5 axb5 Ba3 exd5 e4 c4 Bf8 Be2 Nd7 c5 Ne5 fxe5 f4 Bf3 Bd6 cxd6 Ne7 Be2 Nf5 gxf5 Be6 Bf3 Bc8 Bg4 hxg4 Kd2 Kf7 Kc2 g5 h4 a5 b4 c5 f6 Kg6 f7 Kh5 f8Q e3 d7 e2 d6 e1Q e6 a4 b6 f3 d5 a3 b5 a2 b7 c4 b8N g3 b6 Kg4 b7 g2 h5 c3 e7 Qf2+ Qe2 Qe3 e8N Ra4 h6 Qf4 h7 Rc4 Nh3 g1Q Qe4 f2 Ng7 f1B Qf6 Qe8 d8Q Rc6 d7 Be2 d6 Ra6 Be3 Qg6 Qde7 Qf2 d8R Re8 h8R Qe1 Qef7 Re5 Rh5 Bd1+ Kc1 c2 d7 Kg3 Q7e7 g4 Rg8 Bf3+ Kb2 c1R d8N Rd1 Qg5 Qf8 Nf4 Qgf5 Qe6 Q8f6 Nd5 Kg2 R1h4 Kf1 Rh3 g3 Qgh4 g2 Kc2 Q5g6 Rg3 g1Q Qeg4 Bf5 Nd7 Ke2 b8Q Qb4 Qgg5 Bh3 Qb6 Qbf8 Nb7 Qc8+ Kb2 Qe1 Qgf5 Qg1 Nd2 Qe1 Nc4 Rd4 Rc1 a1R Kc2 Qf2 Rcg1 R1a5 Kb1 Rd2 Na3 Qf1+
4R1Q1/2rbb1R1/KQ1bQN1n/1q1rR3/4RN2/n3B1qR/1b6/kr1NQ2N w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 Bh3 Kf7 fxg5 Be6 g6+ Ke8 g5 Bc8 Bg4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 h4 a5 b4 c5 h5 e5 d6 g3 b6 a4 Kb5 c4 b7 a3 d7 c3 f6 a2 d5 g2 h6 c2 g7 Ne7 g8N Ra7 d6 Ra8 g6 Ra6 f7 Ra7 g7 Nec6 h7 Ra4 Ne2 g1R Rh3 Rg6 Qe1 Na5 Be3 Kd3 Nbc3 c1B Nf6 Kc2 g8Q Kb2 Ng3 e4 Nh1 Nbc6 b8R Ne7 Rb7 Qe8 Ka6 Rg5 d8N Bd7 b5 Rd5 b6 Rb4 Ne6 Nf5 Nf4 Be7 f8Q Nh6 Qff7 Nc4 Qe6 Na3 Ra7 Rc4 b7 Rc7 Rh5 Bd2 Re5 Qb8 Rc1 a1B Nd1+ Ka2 Rc4 Bb4 Rd4 Bb2 Rc4 Qe8 b8Q Ka1 Qb6 Qb8 Qg5 Rhc8 h8R Rb7 Qgg8 Rcc7 Bg1 e3 Rce4 e2 Be3 Be8 d7 Bbd6 d8R Bd7 Rf8 Qe8 Rh7 Qh5 Re8 Qf5 Qf1 e1Q Rg7 Qg3 Qe1 Rc1 Raa8 Rb1 Rac8 Qh5 Rc2 Qhg5 Rh2 Rc7 Rh3 Qf5 Rd4 Qd3+ Rc4 Qb3 Rce4 Qb5+
7q/Nk3b2/4R3/1p1bbQn1/bN1n1NRK/3B1r2/q1NQQ3/R1NQrR2 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 c4 f5 exf5 c5 cxd5 g4 Ba3 g3 Bb4 cxb4 hxg3 Kd7 g4 Ke8 g5 Ra6 Be2 Ra7 Bf1 Ra8 a4 Kd7 g4 Kc7 d4 e5 f4 h5 Kf2 b5 Kg3 e4 d6+ Kc6 a6 e3 d7 e2 g6 b3 a5 b2 f6 Qe7 d8Q Qe8 g5 Ne7 f5 Qd7 d5+ Kc5 a7 Nec6 a6 Qe6 f7 Nd4 f6 Rg8 d6 Kc6 d7 Qd5 g7 Nb3 g6 Bb4 f8N Nc5 f7 Qb3+ Kh4 Qd3 Ne6 Qc4+ Nf4 Qc1 f8Q Ne6 Qf5 Qc4 Na3 b1B Nc2 Rf8 g8R Qa2 g7 Bc3 Qd2 Rf7 Re8 Be5 g8R e1Q+ Rg3 Qf2 Bd3 Qd4 Ne2 Ng5 Nc1 Re7 Rf1 Bb7 Na3 Bc2 Rg4 Ba4 Nc2 Rf7 Qe7 Kc7 Qd1 Bd5 d8N+ Kb6 Qb4 Nc6 Qbd2 Qc3 Re7 Nd4 Nc6 Re8 a8Q Rff8 a7 Bf7 Re6 Re7 Qe8 Kb7 a8N Qcb2 Kg3 h4+ Kf2 h3 Kg3 h2 Nc7 h1B Kh4 Bd5 Na6 Qc3 Na7 Qc8 Nab4 Qd8 Rf6 Re6 Rh6 Qf6 Rg6 Qh8+ Rh6 Bc7 Qe7 Re1 Qee2 Be5 Qfe4 Kb8 Ng2 Bh5 Re6 Rf3 Qf5 Kb7 Nf4 Bf7+
q1N1qb1k/1QRQ3N/3N1Nnp/5Q2/R1R1p3/R4r1B/b1K1nN2/5Qrn w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 d5 a4 d4 axb5 d3 cxd3 Bd7 d4 Be6 d5 Bc8 g5 Nf6 g6 Rg8 gxh7 Bb7 h8N Bc8 Ng6 Rh8 Nh3 Ng8 Ng1 Rh5 Nh8 Rh7 d4 Nh6 h4 Ng8 h5 Rh6 Bd2 Rd6 h6 Rg6 h7 Rg4 Bh6 gxh6 Ra4 Rg3 Ra1 Rg7 Kd2 e5 f4 c5 b4 a5 b6 c4 f6 c3+ Kc2 a4 d6 e4 f7+ Kd7 f5 a3 d5 a2 f6 Rg2+ Nd2 Bg7 f8N+ Ke8 b5 Ra3 b7 Rg3 b6 Ra8 Nhg6 Kf7 h8R Na6 b8N Bb7 d7 Rg5 d6 Ne7 Nh7 Nc6 Bh3 Rf5 Nc4 Re5 Ne7 Rg5 Qf1 Nc5 Nc8 Ba6 b7 Qg8 d8R Rg6 d7 Rg4 N4d6+ Kg6 f7 Bc4 f8Q Ne7 Q8f2 Bf8 Qf5+ Kg7 Re8 Nd3 d8Q Rg3 Nd7 Rf3 b8Q Ng6 Qb7 Nf2 Ndf6+ Qf7 Rc1 a1Q Re7 Ba2 Qdd7 Ra6 Rh2 Nh1 Rd2 Ra5 Rd4 Rd5 Ra4 Rd1 Bg2 Re1 Nh3 Rd1 Nf2 Re1 Qc4 Rf1 Bh3 Rg1 Re5 Qe7 Qf1 Qf7 Rc5 Qe7 Kd1 c2+ Kd2 Qf7 Rcc4 Qe7 Rb1 c1N Kc2 Ne2 Rb3 Qe1 Rba3 Qa5 Rc7 Qa8 Rcc4 Qf7 Rc7 Be7 Re8 Bf8 Re5 Kh8 Rec5 Qe7 Rcc4 Qe8
Q2QN2N/nR2N2n/1q4Q1/2RRbb2/Q1B4n/2r2p1k/K1RQ1pN1/r5n1 w - - 0 1 legal: proof: g4 d5 f4 b5 c4 h5 cxd5 e5 gxh5 b4 b3 Rh6 Bb2 Rg6 a3 Rd6 axb4 Rh6 b5 Rh7 Bd4 Rh8 fxe5 g6 Be3 g5 Bf4 gxf4 h4 Kd7 e4 c5 d4 f5 Kd2 a5 Kc1 f3 Kb2 f4 d6 Ke6 d7 a4 b6 a3+ Ka2 f2 d5+ Ke7 b7 f3 h6 c4 e6 Kf6 b4 c3 h7 c2 d6 Bg7 e7 Qb6 e8N+ Kg6 d8Q Kh5 e5 Kg4 e6 Nh6 b5 Rf8 h8Q Nf5 e7 Bd7 h5 Bc6 d7 Rf6 h6 Ra4 h7 Bf8 Qd2 Qa6 b6 Rc4 Ne2 Bd5 Qg8+ Bg7 h8N Be6 Nf4 Nh4 Ng2 Bf5 Nc3 Nc6 b8Q Na7 b7 Qb6 Nd5 Rc3 Qa8 Rg6 b8R Be5 Rg1 Kh3 Rc1 Rg4 Qh7 Ra4 Rb7 Ra5 Bc4 Ra6 Ka1 a2 Qg6 Ra5 Rge1 Ra6 Re2 Raa3 Rb1 c1N Rb5 Ra5 Rc5 Ra4 Re1 Ne2 Rc1 Ng1 Rc2 Ra6 Nec7 Raa3 e8Q Ra4 Ne7 Ra6 Nb5 Raa3 Kb2 a1N Kb1 Nb3 Nd6 Ra1+ Kb2 Rf1 Ka3 Nd4+ Ka2 Nc8 Qa4 Na7 Qf8 Rc1 Ne8 Ne6 Qa8 Rf1 d8R Ng5 Rdd5 Nh7 Qff6 Rb1 Qd6 Rd1 Qdd8 Ra1+
1K1nB3/5n2/R1Qr2pR/BR1p1Q2/2B2n2/Q4Q2/B2qr3/B1bkqRNr w - - 0 1 legal: proof: d4 c5 dxc5 b5 f4 f5 a4 h6 axb5 Nf6 g4 Rg8 gxf5 Rh8 e4 Rh7 e5 Nc6 Nc3 Rh8 Ne4 Ng8 f6 Nb8 Ng5 hxg5 f5 Bb7 Ke2 Bd5 Ke1 Bf7 e6 g4 Bg5 Qa5+ Bd2 Kd8 exf7 Qc7 Be3 Qc8 Bh6 Kc7 Bc1 Qd8 Ke2 a5 Kd3 e5 Ke4 a4 Kd5 g3 h4 d6 b4 g6 c4 a3 h5 g2 b6+ Kb7 c6+ Ka6 c7 a2 b7 e4 c8B e3 c5+ e2 h6 Kb5 h7 Na6 b8R+ Qb6 c6 Nh6 c7 Rg8 h8B Nc5 Be6 Nb7 c8B Bg7 f8Q Ra6 f7 Nd8 f6 Ra4 Bcd7+ Nc6 Be8 Ra8 Bd2 Nf5 Rh6 Ra3 Ra8 Ra7 Qc2 Rd7 Ra6 Qa5 Qc4+ Ka4+ b5+ Ka3 Qc5+ Kb2 b6 e1R b7 Nd8 Bc4 Kc2 b8R Re2 Rf1 a1Q Rb5 Qe1 Qc6 Kd1 Qe7 Qb4 f8Q Qa5 f7 Bb2 Bg7 Bc1 Ba1 Rh8 Qf6 Qa2 Ba5 Rh7 Qc3 Qd2+ Qd3 Rh8 Qe7 Rh7 f8Q Rh8 Qef6 Rhh7 Qb2 Rh8 Qa3 Rhh7 Rh1 Nh6 Qf5 Nhf7 Rh6 Rh8 Nf3 g1N Ba2 Nh3 Ng1 Bb2 Qf3 Bd4 Qdf5 Be3+ Ke4 Nf4 Bed5 Qc1 Bdc4 Bd2+ Kd4 d5 Kc5 Rd6 Kb6 Qb2 Kc7 Bc1 Kb8 Qd2 Rh4 Rh5 Rh2 Rg5 Rh7 Rh5 Rh6 Rh1
bbb2r2/RR4n1/B2Rp1QB/5Q1K/Q1b2q1p/1B1B4/Q2r3k/2rRN1R1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Bh6 f6 Qd8 f5 Bf8 g4 Nc6 h4 Kf7 h5 Na5 Nc3 Nc6 Nce2 Ke8 Nf4 gxf4 g5 Ne5 Kf2 Ng6 hxg6 Nh6 Ke1 Ng8 Ke2 h5 Kf3 a5 b4 d5 c4 Kd7 f7 d4 f6 Ke6 c6 Ke5 c7 d3 g7 d2 c5 h4 c6 a4 g6 a3 b6 a2 b5 Ba6 Kg4 f3 c8B f2 c7 Qe8 b7 Rb8 b6 Be2+ Nf3+ Ke4 Qa4+ Ke3 Be6 Nh6+ Kh5 Bb5 c8B Be2 g8Q Bc4 g7 Kf4 Ne1 Kg3 Rg1+ Kh2 Bd3 f1B Bd5 Ba6 Bb3 Nf5+ Qh7 Qd7 g8Q Nd6 Rb1 Bg7 f8R a1R f7 Qc7 Rd8 Ne8 f8Q Qf4 Rd6 Be5 Qf5 e6 Qgg6 Ra8 b8R Rf8 b7 Ra7 Ra8 d1B+ Qfg4 Bg2 b8R Rd7 Qa2 Be2 Ra7 Ba8 Rbb7 Bc4 Be3 Ba6 Rd1 Rc1 Qf5 Bc4 Qhg6 Rd8 Rdd7 Bb8 Rd6 Ba6 Rb4 Bc4 Ba6 Rd7 Bd2 Bef3 Rbb6 Bfb7 Rb4 Bc8 Rbb7 Qd4 Bh6+ Qf2 Be2 Qf1 Qge4 Qf4 Qc6 Rd8 Qca4 Rd7 Rdb6 Rd3 Rd6 Rd2 Bd3 Ng7+
1qqB1kr1/n4pn1/5Q1R/N1pQ4/3qp1rB/Q4B1N/NNb2K1Q/3Q1B2 w - - 0 1 legal: proof: c4 b5 f4 g5 fxg5 d5 cxd5 b4 d4 b3 e3 Qd7 d6 Qh3 axb3 Qe6 b4 Qd7 b5 Qd8 b4 h5 g4 Qd7 g6 Rh6 d5 Rh8 g5 Bg7 Ra3 Bd4 exd4 Qd8 Rg3 Nh6 Rg2 Ng8 Rg4 hxg4 h4 a5 h5 c5 d7+ Kf8 h6 e5 d6 a4 b6 a3 d5 a2 b5 a1Q b7 g3 h7 g2 b6 Qe8 d8N Na6 b8Q Nc7 b7 Nh6 d7 Ra3 d6 Nd5 Kf2 Ne7 Nh3 Qb2+ Nd2 Neg8 Nc6 Ra7 d8B Qb5 d7 Ra2 Na5 Ra4 Ndc4 Ra3 Nb2 Qb3 Bd2 Qa4 Be1 Nf5 Qa8 Ng7 b8Q Qe4 Qad5 Qb1 Qb4 Rg3 Qa3 Nh6 Rh2 Rg8 h8Q Nh5 Qf6 Rh8 g7+ Kg8 Rh1 Nf5 Rh2 Kh7 g6+ Kh6 g8Q Nhg7 Qf8 Nd4 Q8d6 Rg4 Qb8 Nc6 Qbd6 Nh5 g7+ Kh7 Qc7 Na7 Qcd6 Ba6 Qc7 Bd3 Qcd6 Bg6 g8B+ Kh6 Bh7 Ng7 Rh1 Rg8 Qc7 Kh5 Qb8 Bd3 Be4 Bc2 Bf3 Qe6 Qbd6 Qf5 Qb8 e4 Qh2 g1Q+ Ke2 Qd4 Bh4 Qde5 Kf2 Qfe6 Be7 Qc6 d8N Qc8 Ndc6 Qa1 Bd8 Qb1 Qe7 Kg6 Nb4 Qa1 Na2 Qeb8 Qf6+ Kh7 Na4 Qd4+ Ke1 Rh8 Nb2 Kg8 Ke2 Kf8 Ke1 Qd3 Kf2 Rg8 Rg1 Rf4 Rg6 Rg4 Rh6 Qd4+
n1BQ4/2r4k/2NR2pN/K2bR2q/n2nrq1N/4Q3/1NN2N1r/NbNR4 w - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 fxe5 Bd6 cxd5 Bb4 g3 Bf8 b3 f4 Qc2 h6 Ba3 f3 Qd1 Be7 Bd6 Bh4 Be7 Bg5 Bf6 Be3 Bg5 Bf4 gxf4 hxg5 h4 Kf7 d4 Kg6 Kd2 a5 Kc3 c5 e4 a4 d6 a3 h5+ Kh6 d7 a2 f5 f2 e6 g4 d5 g3 f6 c4 Kb4 g2 e5 c3 f7 c2 f8N c1R b6 Rc7 e7 Nf6 e8N Nh7 e6 Ng5 b7 Qf6 d8Q Qf5 e7 Qf6 d6 Ra6 d7 Qf7 Qe1 Rc5 Nd2 Raa5 Rd1 a1Q Qe3 Qf5 Ba6 f1B Nd6 Rc7 e8N Qf4+ N6e4 Rc3 Nd6 Qh4 N6c4 Qb1 Ne2 g1N Ng6 Qf4 Nh4 g6 Nb2 Re8 Nc1 Qf3 Nf2 Kh7 h6 Kg8 h7+ Kg7 h8N Ne2 Nf7 Rc6 Nh6 Bg2 Rhe1 Ra2 Kb5 Rc2 b4 Ne4 Ndb3 Nc5 Na1 Na4 Ka5 Nd4 b5 Rc7 b6 Qbf5+ Qe5+ Qf6 Qde7+ Kh8 d8R Nd7 b8N Nc2 b7 Qe2 Ne4 Qc4 Nc6 Qe2 b8N Nd4 Nb4 Ndb6 N8c6 Be6 Nc4 Qh5 Bc8 Bd5 Rd6 Na8 Qd8 Kh7 Qe6 Rf2 Nb2 Qf4 Qe5 Ba2 Nbc2 Bb1 Re2 Bh1 Re3 Rh2 Nf2 Bd5 Re4 Ne2 Qc3 Nd4 Qe3 Rf8 Re8 Rf5 Ree6 Re5 Re8 Re4 Re7+ Bf7+ Re5 Bd5
k4K2/r1BR1q1q/2bN1n2/3NQqP1/2Nb2R1/1N1Br2Q/5r1b/B4N1R w - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 a5 e4 f5 exf5 g5 b4 gxh4 bxa5 b4 a6 b3 axb3 Ra7 b4 Nd7 b5 Nc5 b6 Nb7 axb7 Ra8 Ke2 Kd7 Ke3 h5 Kd4 c5+ Ke5 c4 b8B e6 d4 h3 g4 c3 f4 h4 f6 h2 g5 h3 f5 c2 b7 Bc5 f7 Rh7 f8N+ Ke8 f6 Bb4 d6 Rf7 d5 Ba5 Qf3 Nh6 Nd2 Rh7 d7+ Kf7 Kd6 e5 Nc4 e4 Bc7 e3 b8Q e2 Ne6 e1R Nf4 Bc3 Bb2 c1B Bd3 Bb7 Ra4 Qg8 d8N+ Ke8 Ba1 Re3 Nge2 Ng4 Ng3 Bc6 Nf1 Bd4 Qb5 Ra5 Nb7 Ra7 Nc5 Rf7 Nb3 Bcb2 Rb4 Be5+ Ke6 Qh7 d6 Bbd4 Nd5 Rf8 Qf5 Bg3+ Qe5 Bf4 Qa6 Qg7 Qa3 Qf7+ Kf5+ Kd7 Ra4 Kc8 d7+ Kb7 d8N+ Ka8 Nb7 Qe7 f7 Nf6 Kg6 Qd7 Kg7 Qf5 Nbd6 Bg3 Rg1 h1Q Rb4 Qh2 Rh1 Qa2 Rb7 h2 Rb4 Rc8 f8R Bf4 Rf7 Rf8 Rd7 Qf2 Rg1 h1Q Ra4 Qhh4 Rh1 Bh2 Rb4 Rb8 Ra4 Rb7 Kf8 Qhh7 Qa2 Q2f3 Qg2 Rb6 Qh3 Rba6 Rb4 Ra2 Na3 Rf2 Rc4 Bb6 Rg4 Bd4 Nac4 Q3f4 Rg3 Qf3 Rgg1 Qfh5 Rg4 Q5f7+
qR4RB/N2P1K2/p1qr4/1N3r2/RR1N3R/1b2kn2/Q5nB/rQ1rB3 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 Na6 a4 Rh6 axb5 Rh7 b6 Rh8 b7 Nb8 gxh5 e6 b4 a6 b5 Bc5 Bd3 Bd4 Bf1 Ba7 b6 Rh7 bxa7 Rh8 Bd3 c6 Bb5 cxb5 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 h4 Kd4 f4 g5 f6 b4 h6 b3 Kh5 b2 Kg6 g4 h5 g3 d6 e5 h7 e4 d7 g2 f5 e3 f7 e2 f8B e1Q f6 Qee8+ f7 Qe5 h6 Qb5 Nc3 b1R Ra4+ Qb4 Rh4+ Kd3 Bd6 Qba5 f8R Qb5 Kf7 Ra1 Nge2 g1R Nd4 Ra3 Bh2 Qbg5 Ncb5 Qb6 d8N Nd7 b8R Ne7 N8c6 Nd5 Rg8 Nf4 Bb2 Ng2 Bc3 Qbd8 Rb6 Rb8 a8R Ra1 Nca7 Qc5 Qe1 Rb7 Rb8 Qc6 Qe6 Rgd1 Qa2 Nf4 Ba5 Ke4 d3+ Ke3 Be1 Ng2 Rg7 Re8 h8B Re4 h7 Re6 Rg8 Rd6 B8e5 Qc3 Na3 Qg5 Nf3 Rg6 Rbb4 Rb5 d4 Re6 Bf6 Qd5 Qb1 Qc2 h8Q Qa8 d5 Qcc6 d6 Rg5 N3b5 Ne5+ Kf8 Rh5 Qg7 Rg5 Qf7 Bd7 Nfd4 Nf3 Bg7 Reg6 Bf6 Be6 d7 Bc4 Bg7 Rd6 Bh8 Ba2 Qc4 Rgd5 Qcc2 Bc4 Kf7 Bb3 Qca2 Rf5+
3QqQ2/5p1k/KB2R2N/1R1n1p2/Bb1RPb2/bbN4n/Q3BpR1/R7 w - - 0 1 illegal: Other
5nN1/1N6/P1QrQ1B1/1qBQ4/2p1pkBb/Rr2R1p1/5n1p/B1BK1N2 w - - 0 1 legal: proof: c4 c5 b4 d5 cxd5 f5 d4 a5 g4 axb4 e4 c4 exf5 Qd6 f6 Kd8 f7 Qc5 dxc5 Kd7 f4 b5 f5 g5 h3 Kc7 f6 Bf5 Bd3 Kd7 gxf5 g4 Bf1 g3 Qg4 Ra3 Qd1 Rf3 Be3 Rf4 Bc1 Rg4 hxg4 Bg7 Qd3 Bh6 Qd1 Bf8 a4 h5 c6+ Kd6 g5 Ke5 d6 h4 d7 b3 d8B b4 a5 b2 c7 b3 c8B h3 g6 e6 a6 h2 g7 Ne7 g8N Bh6 f8Q Ke4 f7 e5 f6 Nbc6 Qe8 Bg5 f8B Nb4 f7 Bh6 Nf3 Na2 Nfd2+ Ke3 Bg4 Nb4 Na3 b1R Nb5 b2 Nd6 Ned5 Bd3 Nb6 Nb7 Bg7 Bf6 Kf4 Bc5 Rh4 f8Q Nd7 Qfe7 Rh6 Ra3 Nf8 Bg6 e4 Qc6 Nd3+ Ke2 Bh8 Re1 Nf2 Qee6 Bg7 Bc3 Bf6 B3d4 Bh4 Bc3 Rh7 Bh8 Rd7 Bf6 Rd3 Nf1+ Re3+ Kd2 Rb3 Re3 Ra1 Ke2 b1Q Qdd5 Ra2+ Ke1 Rd2 Ba1 Qb2 Qh5 Rd6 Qhd5 Qf6 Ke2 Qd8 Kd2 Qb6 Ke2 Qb5 Kd2 Nd3 Kd1 Nf2+
3QB1BR/2q3kb/Bq6/r5NK/n2R2Q1/1N1nQ1B1/2b1Bb1P/N2rnq2 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 a4 b5 axb5 e5 c4 d5 cxd5 Qe7 f4 Qf6 fxe5 Qd8 Kf2 c5 Kg3 f5 e4 Kf7 d4 g5 b6 c4 d6 c3 d7 c2 d5 Nh6 e6+ Kf6 d6 Nf7 e7 Bh6 e8B Rg8 a6 Bg7 b7 Bh6 a7 Rf8 e5+ Kg7 e6 Ne5 e7 Rg8 Bf7 Qb6 e8B Na6 b8N Nc5 d8Q Ned3 d7 Na4 Bf4 c1Q Qe7 Qcc7 d8Q Bb7 Qee2 Be4 Nd7 Rf8 Ba2 Rf7 Nc5 Rd7 Nf3 Rd6 Kg2 g3 Kh3 g4+ Kh4 g2 Bg8 g1N Bg3 f4 Nb3 Bh7 Ng5 f3 N1d2 f2 Qe3 Nf3+ Kh5 Nfe1 Be2 f1B Rc1 Bg2 Na1 Bge4 Ndb3 Rd5 Rf1 Ra5 Rf8 Rc8 Bh4 g3 a8B g2 Bb7 g1Q Bg3 Qf1 Rc4 Rca8 Rd4 Rd5 Bc8 Raa5 Ba6 Bef5 Nf7 Bf4 Ng5 Rd7 Qf3 Be3 Qc1 Bf2 Qg4 Nb4 Qe3 Bc2 Bgf7 Nbd3 Rh8 Rdd5 Bg8 Ndb2 Rf4 Rd1 Rd4 Nbd3
1QRrQNBB/3r2Rb/2RnBP2/2b1N3/3kn3/1Kr1N3/4nb1q/R1R4q w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 Kf7 Kd2 h5 Kc2 c5 g4 e5 f4 h4 b6 c4 b7 h3 f6 e4 g6+ Ke8 d6 Kd7 g7 Kc6 d5+ Kc5 f5 e3 g5 e2 g6 e1B d7 h2 f7 c3 d6 Ne7 g8R Rh5 g7 Rh7 Na3 Qc7 d8R Na6 b8Q Bf2 d7 Bb7 Bh3 Be4+ Kb3 c2 Nf3 Nc8 Nc4 Nd6 Bb2 c1R Rc8 Be7 Rg1 h1Q f8N Rc2 d8R Rc3+ Ka4 b3 Ne3 Bd3 Ne5 Kd4 Qh5 Nc5+ Kb4 Ne4 Qe8 Bc2 Rgc1 Bb1 Rd7 Bd3 Rh8 Bb1 g8B Bc2 Ba3 b2 f6 b1N Bhe6 Qd8 Rc6 Qc7 Qb5 Rd8 Qb8 Qc8 Rdc7 Qa6 Rb7 Qe2 Rbc7 Bd3 Rc8 Rf7 Rh7 Qeh5 Rg7 Q5h2 Nfg6 Bf8 Ka4 Ra7+ Kb4 Be7 Nf8 Rad7 Ka4 Nb5 Bb4 Bc5 Ba3 Nbd6 Bb4 Rc2 Kb3 Rc3+ Kb2 Rb3+ Ka2 Ned2 Nh7 Nb7 Rg3 Bb6 Bf8 Nd6 Rg2 Bc5 Bg7 Be4 Nf8 Bh7 Rg4+ N2e4 Bh8 Ra3+ Kb2 Nc3 Rg7 Ne2 Kc2 Rc3+ Kb2 Rc2+ Kb3 Rc3+
Q1B3KR/4Q3/Nq3Q1r/1N3Q2/b1rNnB1P/R1r2r2/2nQ1b2/R1b3kr w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 c5 f4 g5 f6 b3 h6 b2 d6 c4 b6 e6 d5 g4 h7 g3 f7 c3 b7 g2 d7 c2 f5 Bh6 f8Q Bg5 f6 Ra3 f7 Rf3 d6 Qb6 d8Q Nf6 d7 Na6 b8N Nb4 Ne2 Kh3 Na3 b1R Na6 Ne4 Qfe7 Rbb3 f8Q Rbc3 Bf4 c1R Nd4 Nc2 Qd2 Bh6 Bc4 g1B Nab5 Bf2 Qf5+ Kg2 h4 Bg5 Rh2+ Kg1 Rh3 Bb7 Qdf8 Bc6 Qa8 Bh6 d8Q Bg5 Nbc7 Ba4 Ncb5 Rce3 Nbc7 Nc5+ Qfe4 Nb4 Qd1+ Kg2 Qed7 Rb3 Bb5 Rc4 Bd2 Nc2 Qf5 Bh6 Kf6 e5+ Kf7 e4 Qff6 e3 Qdf5 e2 Qde7 e1R Bd7 Rh1 Ncb5 Ne4 Bc8 Rf4 Rc3 Rf3 Qe1 Rg8 h8R Rg6 Qd1 Bf4 Qe2 Rh6 Kg8 Bg5 Bc1 Kg1 Re3 Rbb4 Rea3 Rcc3 Qd3 Bd2 Qe3 Rbc4 Qd3 Bde1 Bf4 Be3 Qe2 Bc1 Qd2 Bf2
kn2B3/BbQ1Qq2/r2bK3/2N5/B1PR1rn1/1n1nN1Q1/N3b1nB/5B1R w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 e4 c5 exf5 b4 d4 cxd4 a3 Qb6 axb4 Qc7 b5 Qd8 Ke2 e5 Kf3 d5 Kg4 Kd7 c4 Kc7 f4 Kb7 a6+ Ka7 g6 e4 g7 d3 Nh3 h6 Be3+ d4 Nc3 d2 Na2 Bd6 Nf2 Nd7 f6 h5+ Kf5 h4 g4 h3 g5 h2 b6+ Kb8 f7 d3 f8N Bb4 g6 Bd6 a7+ Kb7 Ng4 Qe8 Ne6 Rh4 Nc5+ Kc6 b7 Ngf6 g8B Qf7 b8B Bb7 g7 Kb6 Qf3 d1N Qg3 Nb2 Rd1 d2 Bh7 Kc6 g8Q Nd3 Bg6 Nc1 Qg7 Nb3 Bd4 Kb6 Ne3 Kc6 Bc7 Nb8 Bh5 Qf8 Qh7 Ng4+ Ke6 Qg7 f5 Qf8 Nc2 e3 f6 e2 f7 e1N Ne3 Ng2 Bg6 Qg7 f8Q Qg8+ Qff7 Qf8 Qe7 Qe8 Re1 d1B Bh5 Be2 Rd1 Qf8 Be8+ Nd7 Rg1 h1N Qhg7 Nhf2 Rh1 Nd3 Qh7 Rc8 a8B Qf4 Bb8 Kb6 Be5 Rc6 Ba7+ Kc7 Qhf7 Ra6 Qg7 Kc8 Rd2 Nb8 Qh7 Bbf3 Bac6 Be4 Ba4 Qf3 Nd7 Kb7 Nc5+ Ka8 Qc7 Bb7 Qhe7 Nf6 Rd1 Rf4 Rd2 Ng4 Rd1 Nde1 Rd4 Nd3 Qf2 Rf8 Bh2 Rf4 Qg1 Qh3 Qf2 Qh7 Qg3 Qf7+
q2b1Q1n/P2N1Q2/B2R2QN/B1b5/Br6/3r1n2/bkBBRRbr/4K2n w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 g4 Kf7 a4 b5 f4 h5 a5 e5 a6 e4 f6 h4 f5 b3 d6 h3 g6+ Ke8 g5 Kd7 f7 Kc6 f6 e3 a7 b2 d7 b4 g7 b3 g6 e2 Qd5+ Kb5 c6+ Kb4 c7 h2 Nh3 Bc5 f8R Bb7 c8B Bd6 f7 Rh5 Na3 Kc3 Nc4 b1R Ra2 b2 Ne5 Rh7 Ng5 Nh6 g8Q Be7 g7 Qe8 d8B Bc5 Bd7 Nc6 Ba5+ Kc2 Qe6 Nd4 Qg6+ Be4 Bc6 Rd8 Nd7 Kb3 Rg1 h1N Rg2 Rh8 Rf2 Bg2 Rf6 Qe4 Rd6 Rh7 Bb5 Qa8 Re8 Rh8 f8Q+ Nf7 Re7 Rh2 Ba4+ Kc4 Q8h7 Nh8 Re4 Kd3 Nf7 Kc4 g8B Kd3 Bb5+ Kc2 Qhh5 Kb3 Bh7 Kc2 Nh6 Kb3 Kd2 e1B+ Kd1 Bd2 Re2 Nf3 Rf2 Bf4 Ba6 Bg5 Bfb5 Rc8 Ke2 Bd8 Bcd2 Rb8 Qhf5 Rd1 Qf4 b1B Q4f7+ Qd5 Rc2 Ba2 Ba4+ Ka3 Rc4 Kb2 Re4 Qa8 Re5 Rc1 Re3 Rc3 Kd1 Rb4 Ree2 Nh4 Ke1 Rf3 Qh5 Ra3 Bhc2 Rd3 Qhg6 Nf3+
rn5k/2R1rn1N/n1B1BRQb/2Nn4/B1bn4/BN3q2/1QP1B1q1/6QK w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 Kf2 Kg7 b4 d5 g4 a5 Kg2 e5 c6 h5 c7 d4 g6 a4 f6+ Kh6 b6 h4 b5 d3 f5+ d2 g7 Kh7 f7 e4 b7 e3 f6 e2 g5 e1Q g6+ Kh6 b6 a3 Nc3 a2 Na4 Na6 b8Q Qe6 b7 Be7 f8Q Qed5+ Nf3 Nb4 f7 Nf6 Qg8 Nd7 f8N Rh7 Nc5 Bg5 Be2 Qf6 Rf1 h3+ Kg1 Qdf5 Nd4 h2+ Kg2 h1N Rf3 Nb6 Qg1 Be6 c8B d1N Qd6 Bc4 b8Q Nhf2 Bd7 Nfd3 Kh1 Ne3 Qgd5 Qf7 g8B Ne5 g7+ Q5f6 Rb1 a1N Ba3 Nb3 Bc6 Na6 Rf2 Nbd7 Qdg2 Qd5 Ba4 Qc6 Bd5 Bf4 g8B Re7 Qb5 Ndb8 Nh7 Bg5 Qb7 Kg7 Rff1 Qf7 Qg6+ Kh8 Rf5 Qf8 Bge6 Bh6 Bdf3 Qe4 Rb2 Qg4 Bfc6 Nd5 Rf1 Qff4 Qb5 Qc1 Rf6 Nf7 Qb4 Qf3 Qc3 Na5 Rb7 Qcf1 Qb2 Nb3 Rc7 Na5 Bb7 Nac6 Ndb3 Nd4 Bbc6 Q1xg2+
4r3/6nN/1q1R2Bk/BB1b3b/5PR1/q1nK1BB1/Q1qQ1Q2/R1b1b1rN w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 d4 Kg7 g4 c5 f6+ Kg6 f7 h5 b6 e5 d6 h4 b7 c4 d7 h3 d5 e4 d6 c3 Qc2 b3 Nd2 h2 Qa2 c2 Nh3 b2 Rg1 b1Q Nf3 h1B Bd2 c1B Ba5 Qe8 d8Q e3 d7 Nc6 b8B Nh6 Bg3 Kg7 g6 Be7 g5 Qb2+ Kd3 Rg8 f8Q+ Kh8 g7+ Kh7 Qf6 Nf5 g6+ Kh6 Nfg5 e2 Nh7 e1Q f4 Qef2 Qd4 Qh2 Nf2 Bd5 Nh1 Qf8 Qf2 Bh4 Bg2 Qfb4 Bf3 Na7 Rg2 Re8 g8B Qb6 g7 Nb5 Bf7 Nc3 g8B Ng7 Bg6 Qa3 B8f7 Re1 Be8 Rf1 Qe7 Rb8 d8R Bg4 Qee1 Rg1 Bb5 Bh5 Rd6 Re8 Qed2 Qh3 Bh2 Qc8 Rg4 Qcc5 Qfe1 Bf2 Bg3 Qcc7 Qf1 Be1 Qff2 Qcc6 Ba6 Qca4 Bb5 Qc2+
bN1NQ1R1/2B1n2k/Br2n1r1/R2Q2b1/P1n3nB/4qb2/B1B2q2/5QRK w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 g4 Kf7 f4 Kg7 Kf2 h5 Kg2 b5 f6+ Kh7 f5 e5 d6 e4 d7 e3 c6 e2 c7 e1Q f7 h4 f6 b3 Nc3 b4 Ne4 b2 Nc5 b1B Bd3+ Qe4+ Nf3 b3 Ne6 b2 Bf4 Bb7 c8B Nc6 Bc7 Ne5 g6+ Kh6 g7 Ra6 Rg1 Be7 f8Q Ng6 f7 Ba8 Qe8 Rb6 Bca6 Nf8 g5+ Kg6 Kh2 h3 Nfd4 Rh6 Nc6 Kh7 Nb8 Bc2 Qd2 Bd1 Bc2 b1N a3 Rf6 Qd6 Nd2 g6+ Kh6 Ra2 Qd4 Qc6 Qe3 Qg2 Nc4 Qd2 Nh7 f8Q Ng5 Qd3 Bh5 Qf1 Bhf3 Qff7 Rf4 Qf5 Rg4 Qe4 Bf6 Ra1 Ne7 g8B Nd6 g7 Rg2+ Kh1 h2 Bf7 Qf2 g8R Qe3 a4 Qf2 Rb1 Qe3 Rb5 Qf2 Rf5 Kh7 Nc5 Qe3 Ba2 Ne6 Nb7 Nc4 Ra5+ Rg6+ Qg2 Bh5 Qf1 Bg5 Kg2 h1N Qed3 Nf2 Kh2 Ng4+ Kh1 Nf6 Qe4 Be2 Qd4 Ng4 Qdd1 Nc8 Qd3 Qf6 Qd5 Qff2 d8B Bh4 Bf6 Ne7 Nd8 Bd1 Bfe5 Bg5 Bg3 Be2 Bh4 Bf3+
1KbQ4/3RqbB1/1bB1R2P/krQrN3/4Q1N1/1q1n2rR/1n1bB2R/1R6 w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 Qh5 g5 Qxh7 f6 f4 f5 exf5 gxf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb6 d4 a5 b4 e6 h4 f3 g4 c4 g5 c3 h5 a4 h6 f2 g6 c2 d6 a3 d5 a2 f6 Bg7 d7 Qe8 Kd6 e5 d8Q+ Ka7 Kc7 e4 f7 e3 f8Q e2 b6+ Ka6 d6 Qe6 d7 Bb7 b5+ Ka5 Na3 e1R Rh2 Re3 Qc5 Qf6 Rb1 a1Q Nh3 Ba6 b7 Qe7 Bb2 c1B Be2 f1B Nf2 Bd4 g7 Qa2 Ng4 Bd2 Qe4 Nc6 b8R Nf6 g8B Bc8 Bd5 Qb3 Rb6 Nb4 Re6 Nh5 Bc6 Nd3 Ba1 Rg3 b6+ Ka6 b7 Nf4 Bb2 Rb8 Nc4 Bf2 Bc3 Nb2 Bg7 Nfd3 Nce5 Rf8 Rh3 Bg2 Rbh1 Rf5 R1h2 Rh5 Nc4 Rd5 Nce5 Ra8 b8R Bg1 Rb4 Rb8 Nc4 Rb5 Nce5 Ra5 Rb7 Rb5 Kb8 Bd4 Qf8 Bf2 d8R Ka5 Rd7 Bf1 Qd6 Bfe3 Qd8+ Bb6 Qc5 Qe8 Rf7 Qe7 Rd7 Bg2 Rf1 Bh1 Rb1 Bf3 Nf6 Bh5 Nfg4 Bf7
3r4/2N1nk1B/b2r3P/2BrBbR1/N2N1nK1/2n1q3/N1NQ1QQR/q1n5 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 Nh6 c4 Ng8 cxd5 Bb7 Bc4 Ba6 Bf1 Bc8 g3 gxh4 Rh3 h5 Rh2 h3 Rh1 h2 Bh3 h4 Qb3 Bg7 Bf1 h3 Qc2 Bf6 Qd1 Bh4 gxh4 Kf8 Ra6 Kf7 Ra1 Ke8 Ke2 e5 Kf3 c5 b4 a5 d4 e4+ Kg4 c4 f4 a4 d6 e3 h5 c3 d7+ Ke7 h6 a3 b6 c2 f6+ Ke6 f7 e2 f8N+ Ke7 d5 e1R b7 a2 f5 Re2 b5 Kf7 d6 Ra3 f6 Re7 b6 Qc7 Bd3 Ra7 Nf3 Rh7 Nd4 Re5 Qg1 Raa5 Be3 c1N Nc2 Ra7 Qg2 Re8 Ne6 Na6 b8N Rb7 d8Q Qe7 d7 Ne2 Nc5 Nb4 Nc3 Nd5 N5a4 Nc1 Bc5 Nf4 Nc6 Qe3 N6d4 Ne7 Be4 Rc7 b7 Rc6 b8B Ba6 Be5 Rd6 Bd3 Rhh8 Bh7 Rhf8 Rb1 a1Q Na2 Rh8 Qa5 Rd8 Qad2 Rhe8 Rg1 h1N Rb2 h2 Qdf2 Ng3 Qd2 Kf8 f7 h1B Qdf2 Ne4 Qd2 Rc8 d8Q Rc7 Qdf2 Rcd7 Qa5 Red8 Qc3 Ned5 Qcd2 Ke7 f8N Nec3 Nfe6 Kf7 Nc7 Ne7 Rb6 Rd5 Rg6 R7d6 Rg5 Rc8 Re1 Rb8 Re2 Rbd8 Qgg1 Be4 Qgg2 Kf8 Re1 Bed3 Rh1 Kf7 Rh2 Bf5+
2b2q2/2Qb2NB/PB1bn1KR/q5NB/3nNkBr/R2Q2q1/r5B1/1Qq5 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 Kd2 Kd7 Ke3 e5 Ke4 b5 g4 h5 f4 h4 a4 h3 a5 h2 d6 b3 f6 Ke6 f5+ Kd7 a6 b2 c6+ Ke8 d7+ Kf7 c7 b4 Nh3 b3 Be3 Nh6 g6+ Kg8 g7 Kf7 g5 Ra7 Ra3 Ng8 Bb6 Ne7 Nc3 b1Q+ Qd3 b2 Bg2 Qa2 Qb1 Qe8 d8Q Nbc6 Qdd3 Bd7 c8B Nd5 Qe3 Rb7 Qed3 Bd6 g8B+ Kf8 g6 Nc7 f7 Ke7 f8N Kf6 g7 Ne6 Ng5 Ncd4 Bf7 Rh4+ Ke3 e4 g8B Ke5 f6 Qd5 Bh7 Qa5 Bh5 Qe7 f7 Qe8 Rf1 h1Q Rf6 Qd1 Rh6 Qc1+ Kf2 e3+ Kg3 e2 Nce4 Ng7 Nfe6 e1Q+ Nf2 Rc7 f8Q Rc2 Qe7 Qf8 Qd8 Qec3 Qc7 Re2 Nfe4 Rf2 Qa2 b1B Qb3 Ra2 Qb4 Rh2 Kg4 Bc2 Qb1 Bca4 Bb7 Bc8 Ba8 Bad7 Bf3 Ngf5 Ng7 Ne6 Bg2 Nfd4 Bd5 Q1c2 Bb3 Qc1 Bd1 Rh1 Be2 Rg1 Kh4 Kf4 Bhg4 Rd1 Kh5 Rh1+ Kg6 Rh4 Bh5 Q3e1 Beg4 Qg3
n2R4/1qBn3R/1QRqB3/1b3n1N/k1b1bnn1/2Q1P3/K3NQrQ/2N2Q2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Kf2 g5 Ke1 a5 h3 Bh6 h4 Ra6 Qc2 Rf6 Qd1 Rf5 gxf5 g4 Rh2 Qd6 Rh1 Bg5 hxg5 Qd8 b4 Kd7 d4 h5 Kd2 c5 Kc3 a4 Kb2 h4 d6 g3 e3 a3+ Kb3 f2 b6 Kc6 f6 c4+ Ka2 Kb5 g6 g2 b7 f3 d5 h3 d7 h2 f7 Na6 b8Q+ Bb7 f8Q Nf6 d6 Ng4 g7 Nc7 g8N Na8 Ne2 g1N Nd2 c3 Nb3 c2 Bd2 c1Q Nf6 Nh3 Nh5 Nf4 Bh3 f1B Qc7 f2 Qc3 Ka4 b5 Rg8 b6 Be4 b7 Qc7 b8Q Qb7 Qdc2 Qd1 d8Q Rg7 d7 Rg6 Nec1 Bfd3 Qb6 f1B d8R Bb5 Qb8d6 Bfd3 Ne2 Rg8 Rc1 Rg6 Re1 h1N Qf5 Ng3 Rh1 Rg8 Qff6 Nf5 Qb1 Ne6 Qh2 Nf4 Be1 Rg6 Bg3 Rg8 Rc2 Rg5 Nbc1 Rg8 Ka1 a2 Kb2 a1N Ka2 Nb3 Qbb2 Ng6 Bc7 Nc5 Qf7 Nd7 Qf8 Nfe7 Qf1 Nf4 Qhf2 Nge5 Be6 Ng4 Qh8 Qd2 Rc6 Nf5 Rh4 Qb4 Qhc3 Qd6 Qbd2 Ngh6 Qh2 Rg2 Qde1 Ng4 Qef2 Nc5 Ng7 Nd7 Rh7 Qa6 Nh5 Qc8 Qfh1 Qb7 Qhf1 Bdc4+
1QN4K/8/5bQ1/nRnqqr1N/1P3B2/1b1R1N1Q/1kBRqb2/2q1q1RR w - - 0 1 illegal: No possible last move, all moves rejected
Q7/N2Q1Rq1/N4bBQ/3Q1Bq1/N1rb2R1/P1R4K/1qbQ1qn1/1rr2k2 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 h6 f5 Ra7 g5 Ra8 Bb2 Kd6 Bd4 Nd7 Be3 Ndf6 gxf6 Kd7 Bg5 hxg5 Kf2 Kd6 Kg3 Kc5 h4 Kd4 d6 e5 a6 b5 a3 c5 h5 g6 a7 e4 d7 b4 h6 c4 h7 g4 Rh4 c3 Bd3 c2 Nc3 c1Q Na4 Bh6 f8N b3 f7 g5 f6 e3 Bg6 Qb2 Rc1 e2 Rc3 e1Q+ Kh2 Rb8 a8B Rb4 Bae4 g3+ Kh3 g2 Rg4 Rc4 d3 Ke3 d4+ Kf2 d5 Qc7 d8Q Bg7 d6 Nh6 d7 Nf5 Qd2+ Kf1 Ne6 Nh4 f8Q Qf2 f7 Bf6 Ne2 g1B N2d4 Ng2 Nb5 Bb7 Bc2 Be4 Na7 Qa5 Bb1 Bc2 Qh6 Rg8 Qa8 Rgc8 f8R Qc7 d8Q Qg7 h8Q Ne3 Qc1+ Bd1 Qc6 Rc5 Re8 Qbe2 Nb5 b2 Qdd5 Qfe1 Bbf5 b1R Na7 Qb2 Rb3 Qee2 Qcd2 Rcc1 Nc7 Bc2 Rd4 g4+ Kg3 Bf2+ Kh2 g3+ Kh3 g2 Re7 g1Q Qcd7 Qg5 Rc3 Ng2 Na6 Be3 Rg4 Qf2 Rf7 Rc4 Qha8 Bed4
K1b2b1B/1R2P1BN/2Qr3n/8/1nn1qbQN/2b1R1B1/n2N1B2/2k1B1Rn w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 f5 axb5 e5 fxe5 f4 Bh3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Nf6 Ra1 Ng8 Kf2 Ke7 d4 c5 b4 g5 e4 f3 Ke3 c4 h4 a4 f6+ Kf7 e6+ Kg6 d6 c3 f7 a3 h5+ Kf6 e5+ Kf5 d5 a2 Kd4 g3 Kc5 Ke4 b6 g4 h6 f2 h7 f1N b7 c2 b5 g2 e7 g3 e8Q Bg4 e6 Qc7+ Qc6 Bh6 f8N Bg5 d7 Nh6 d8B Qf7 Kb6 Qg7 Ka7 Bd2 d6+ Kd3 b6 Qd4 d7 Bh3 Qg4 Qe4 Bb2 c1N Nf3 g1B Bh4 g2 d8B Ng3 Ka8 Bc5 Rg1 Kc2 Bg7 Bf4 Nbd2 Nh1 Bf2 Na6 b8B Nb4 b7 Rg8 Re1 g1N Nh4 Nf3 h8B Ne5 Ba5 Nc4 Nh7 Rd8 Re3 Bf8 e7 Rd6 Rb1 a1B Bbc7 Nd5 b8R Nb4 Rb7 Nca2 Rg1 Bc3 Qh5 Bc8 Qg4 Rd7 Bce5 Bg5 Beg3 Bf4 Be1 Rd5 Bc7 Kc1 Bgf2 Bg5 Bce5 Rd6 Beg3 Bf4
6Bn/N4R1Q/1n6/2n1BKQ1/qr1q3b/N1q1r2k/1PNB4/RqR1Nn1N w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kf3 e5 Ke4 c5 d4 h5 f6 Kg6 d6 a5 d7 a4 f7 a3 d5 c4 d6 c3 b6 c2 b7 a2 Qd5 h4 Nf3 h3 Bc4 h2 Bd2 Na6 b8B Bh6 f8R c1Q Rf1 Qb6 d8N h1Q d7 Ne7 Nc6 Nc7 d8N Ra3 Nb4 Na8 Ndc6 Qbg1 Bd6 Nb6 Na7 Bg7 Qb7 Rh4 Be6 Qc7 Nc2 Bf6 Bd5 Qc6 Qd7 Rb3 Nba3 Qa4+ Bc4 Qf2 Rae1 a1N Rg1 Rc3 Qd8 Nb3 Ra1 Qh3 Bb8 Qhf1 Qd5 Qb1 Rc1 Ng8 Bc7 Nh6 Qb5 Nf7 Bd6 Kh7 g6+ Kh6 g5+ Kh5 g7 Kg4 g8Q Kh3 g6 Nh8 g7 Rg4 Qc5 Bh4 Qh7 Rd3 Qe3 Nc5+ Kf5 Qg1 g8N e4 Bc3 Qd1 Bde5 Qg1 Qd2 e3 Nh6 e2 Bg8 e1Q Rf7 Qee3 Nfe1 f3 Ba5 f2 Bb4 Rc4 Ng4 f1N Ba5 Qeg3 Qg5 Qd4 Bd2 Rb4 Nf2+ Kh2 Nh1 Kh3 Qf6 Qge3 Qd8 Qc3 Qf6 Qed4 Qg5 Re3
3kBb1R/5Q1N/r1nBB1Q1/1K3P2/4p1Qq/r1BR3N/5n1b/n3BbRr w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 h5 Kd3 c5 Kc4 e5 d4 e4 g4 b3 f4 b2 b6 h4 d6 h3 b7 h2 g6 Ne7 f6 Bd7 f5 Bc6 g5 Bd5+ Kb5 c4 f7+ Kd7 g7 c3 g8B c2 g6 Bh6 f8Q Nec6 g7 Bg5 Nd2 b1N Qf7+ Qe7 Ndf3 Rh6 Bd2 c1B Bc3 Ne5 Nh3 Bf6 Nfg5 Ra6 Nh7 Nd2 Qg4 Bb3 d5 Nbc6 b8B Kc8 d7+ Kd8 Bd6 Bd1 Ra3 Bg5 Rg1 h1R Qg6 Bc2 Be6 Nd3 Rb3 Ba3 g8Q+ Qe8 Q8f7 Nf2 Be2 Qe7 Bd1 Bb4 Ra3 Bb1 Ba4 Nb3 Be1 Na1 Rd3 Bf4 Bc5 Ra7 Rdg3 Nb3 Q6g5 Ra5+ Kb6 Rf6 Qgg6 Nb8 Bc6 Ra8 Kb5 Kc7 d8R Bg5 Rh8 Bf4 Bc8 Ra3 Be8 Rfa6 Be6 Na1 Bd4 Bbd6 Bdc3 Nc6 Rf3 Bb4 Re3 Bh2 d6+ Kd8 d7 Qh4 Rf3 Kc7 Rfg3 Bf8 d8B+ Kd6 Be7+ Kc7 Bc5+ Kd8 Bd6 Bc2 Re3 Bd1 Reg3 Be2+ Rd3 Bf1
3q2B1/3Q2r1/5P1r/1Rb1b1p1/B1R1R1Q1/kB1NR1q1/5nRn/bq2QNK1 w - - 0 1 legal: proof: g4 d5 f4 e5 fxe5 b5 c4 f5 cxd5 f4 a4 h6 axb5 Qd6 b3 Qd7 Ba3 Qd8 Be7 Be6 Bg5 Bf5 gxf5 hxg5 Kf2 Kd7 d4 c5 h4 a5 e4 f3 f6 g6 b6 a4 b4 g4 e6+ Kd6 b7 c4 e7 a3 e8B a2 h5 g5 h6 c3 h7 c2 e5+ Kc7 d6+ Kb6 e6 c1B e7 Ra7 d5 Ra5 d7 Ra7 b5 Kc5 d6 Kb4 b6 Qc8 d8R Qc4 d7 Qc6 Rh2 Ra5 Bc4 Rb5 Bef7 Bd2 e8B Be7 Ne2 g3+ Kg1 g2 Nf4 Ra5 Bb3 Qc7 Rc8 Bc1 d8Q Ra7 Bea4 Na6 b8Q Nh6 b7 Bb2 Q8d7 Ng4 Nd2 Be5 Qe1 Qd8 Nd3+ Ka3 Nf1 Nc5 Bg8 Ne4 Rc4 Nef2 Qbc8 Bc5 b8R Rc7 Rb1 a1B Rbb4 Ra7 Rh3 Nh2 Qg4 Rf7 Qcd7 Rg7 Re4 Rg6 Rbc4 Rh6 Bd5 Rg8 h8R Rg7 Bg8 Nh1+ Ne3 Rhg6 Bc2 Nf1 R8h4 Rh6 Rb5 Bf8 Rg3 Bc5 Rhh3 Nh2 Bcb3 Nf2 Qe2 Nd1 Qf1 Nb2 Kf2 g1Q+ Ke1 f2+ Ke2 Nf3 Qb1 Qh2 Kf1 Nd1 Rg1 Qf4 Kg2 f1Q+ Kh1 Qe1 Nf1 Nh2 Rg2 Qff2 Rhe3 Qg3 Kg1 Nf2 Qbd1 Rhg6 Qde2 Qb1 Qe1 Rh6
1N1QNr2/3b1k2/1p1n1q2/1BQ1K2n/b1P1R1Nq/2N4q/1bRrN1B1/2B4Q w - - 0 1 legal: proof: d4 c5 dxc5 Nh6 b4 Qa5 e4 Qd8 b5 Ng8 b6 axb6 a4 f5 exf5 Nc6 a5 Nb8 g4 h5 gxh5 Nh6 a6 Ng8 axb7 Rh7 Nf3 Rh6 Ng1 Rh8 Kd2 d5 Kc3 g5 Kd4 e6 h4 g4 c4 g3 f4 g2 f6 Qd7 c6 Bh6 c7 Ra5 f5 Ra3 f7+ Kf8 Ke5 d4 Nc3 d3 Ra2 d2 Rc2 Na6 b8N Ra4 Nge2 g1Q Bg2 Bg5 h6 Qf2 h7 Be3 h5 Qd3 h6 Ra2 Rh4 Nf6 Re4 Nc5 Qh1 Bd7 c8B d1B Ba6 Nh5 Bb5 Ke7 f8N Nb7 f6+ Kf7 Ng6 Rf8 h8Q Nd6 h7 Qf1 Rb2 Ba4 Rd2 Bh6 Rc2 Bg7 Qg8+ Ke8 h8N Qh3 Nf7 Qff3 Qh8 Qf2 Nh6 Rb2 Ng4 Kf7 Ngf4 Qfh4 Kd4 e5+ Kd5 Qg5 Ne6 Qf5 Nc7 Qf1 Rf4 e4 Ne8 e3 Ke5 Qf2 Re4 Qfh4 Nd4 e2 Qg8+ Kg6 Qd5 e1Q Nde2 Qef2 Qc5 Ra2 Kd5 Qf4 f7 Bd4 Bf3 Qff6 Bg2 Rg8 f8Q Rh8 Qe7 Rf8 Qd8 Kf7 Nb1 Bb2 Nbc3 Ra1 Bg5 Rf1 Be3 Rf2 Bc1 Qh6 Ke5 Qg6 Nf4 Rd2 Ne2 Qgf6+
4r1rr/k1n3Nq/2n3b1/3b1NBR/2BR1Pp1/B4B2/R2r4/1QNQrB1K w - - 0 1 legal: proof: c4 b5 g4 e5 d4 g5 dxe5 f5 a4 d5 axb5 Bh6 cxd5 fxg4 h4 g3 Qd3 g4 Qd1 Bg5 hxg5 Kf8 Rh5 Ke7 Rh1 Ke8 f4 Kd7 e4 c5 b4 Kc7 d6+ Kb7 e6 a5 g6 h5 g7 h4 d7 h3 e5 h2 b6 c4 e7 c3 e8B c2 b5 g2 Kf2 a4 e6 a3 e7 a2 Ne2 g1R Nd2 Nh6 g8B Nc6 Bc4 Na5 Nf3 Rg3 Nfd4 Qc7 d8B Qe5 Nf5 Rd3 Kg2 Qc7 Ba3 Ng8 Nc1 Nf6 Bc6+ Kb8 e8N Qh7 b7 Nd5 Bf6 Ka7 b8R Nc7 Bf3 Nc6 Neg7 Ba6 Rf8 Re8 Bg5 Bc8 Rf7 Bb7 Rd7 Rd2+ Ne2 c1R b6+ Kb8 Rd8+ Bc8 b7 Ka7 Rd4 Rc3 Rc1 a1R Rc2 Reg8 Ra2 Re3 Nh5 Ree8 Nhg7 Kb6 b8Q+ Bb7 Qd8 Ka7 Qc2 Re1 Qb1 Na5 Qd7 Bd5 Qa4 Bf7 Qab3 Nc6 Q3d1 Rd3 Nc1 Bg6 Rg1 Rd2+ Kh1 Rf2 Rg3 Rd2 Rh3 Rd3 Kg2 h1B+ Kg1 Rd2 Rh5 R1e7 B3e2 Bd5 Bf3 Re5 Kh1 Re1
1Qn2r1K/R1R5/1Br1PQ2/3Nq1BQ/NQ2b2n/pBN5/2Q2r1b/nn3k2 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 c4 d5 cxd5 e5 g4 exf4 gxh5 Bd6 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 d4 g5 e4 a5 h4 a4 d6 Ke6 b6 Rh7 d7 Nh6 c6 Ra5 b7 Bd6 c7 Rf7 d5+ Ke5 Nc3 Qf6 d8B Rg7 Bc4 Ra6 Nh3 Ng8 h6 Ne7 h7 Nbc6 b8Q Bb7 h8Q Nc8 h5 Nb4 h6 Rf7 h7 Rc6 Bb3 Nc2 Qf8 a3 h8Q Ba8 Qh5 Qe6 Ra2 Na1 Qc2 Kd4 e5 Qf6 e6 Qe5 Bd2 Bb7 Rb2 Ba8 Rc1 g4+ Kf2 g3+ Kf3 g2 Bg5 Ne7 c8N Bb7 Nb6 Nc8 Nba4 g1N+ Kg2 Bc7 d6 Nf3 d7 Nh4+ Kh2 f3+ Nf4 f2 Kg3 f1R d8Q+ Bd6 Qf6 Rf2 Kh3 Ba8 Nfd5 f4 Kg4 f3 Bdf4 Bb7 Bh2 Bc7 Bg1 Bd6 Ba2 Ba8 Rb7 Bc7 Ra7 Bb7 Nf4 Ke3 Bb3 Ba8 Qfb4 Bb7 Qch7 Kd2 Rc2+ Ke1 Nfd5 Kf1 Q7g6 Qe1 Qge4 Bh2 Qeg6 Qe5 Qd3+ Re2 Bb6 f2 Rc1+ Kg2 Qc2 f1N Qhh7 Rd2 Kh5 Rf2 Kh6 Nd2 Qhg6 Nb1 Qh5 Rf8 Kh7 Rf7+ Kh8 Ba8 Re1 Bb7 Re4 Kf1 Re3 Ba6 Re4 Bd3 Rc4 Be4 Rc5 Rd6 Rcc7 Rc6 Rd7 Qg3 Re7 Qe5 Rec7 Rf8+
BK3b2/1Rr2R1n/N3krqB/6b1/2r1Np2/3B1Q1N/nP1R2RQ/1R2r2q w - - 0 1 legal: proof: c4 b5 g4 e5 f4 d5 cxd5 g5 a4 Bf5 axb5 Bg6 h3 f5 Ra3 exf4 Ra1 Bh5 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Kf7 Qc2 Ke7 Qd1 Ke8 e4 Kf7 Ke2 c5 Kf3 h5 d4 a5 d6 h4 g5 c4 d5 h3 e5 a4 Ke4 a3 b6 g2 b7 h2 g6+ Kg7 e6 Kf6 e7 c3 e8B c2 d7 a2 g7 Qa5 d8R Be7 d6 Qe1+ Kd5 Qc3 d7 Na6 b8N Qa5+ Kc6 Qb4 Bd2 c1B Nc3 Qa4+ Kb7 Ba3 Qf3 Qd1 Ne4+ Ke7 f6+ Ke6 Bc3 Qd4 f7 Rh6 f8Q Nb4 Na6 Qf6 Rb8 Bd2 d8R Be1 Bc6 Ra7+ Kc8 Bh4 Ba8 Re7 Rb7 Rc7+ Kb8 Qg5 Qc5 Nf6 g8R Qf5 Rad1 a1R Qcf2 Na2 R1d7 Bf8 Nh3 g1R Rf7 Nh7 Bg7 Rf6 Rd2 Rac1 Bh6 R1c4 Bd3 Rgc1 Re1 h1Q Qh2 Qh5 Rgg2 Qg6 Red1 Bg5 Rdg1 R1c3 Ra1 Rc1 Rb1 Re1
Nr1n1N2/Q1b1r2N/6RB/1N4n1/1Brp1r1k/1Q6/1NP1q1BK/R1b2Q1q w - - 0 1 illegal: No possible last move
1R3R2/3N3B/krQP1R2/1p3B1n/b1QnQ3/1qq5/1QqbBq1K/1r2N1Q1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 h6 g4 Bg7 g6 Bf8 g7 Qd7 Kf2 Qd6 Ke1 Qd8 g5 Na6 g6 Rh7 Bb2 Rh8 Bf6 Nb8 Bg5 hxg5 Kf2 Kd7 Kg2 c5 a4 Kc7 d4 b5 h4 Kb7 h5 e5 a6+ Kb6 d6 e4 d7 c4 f6 g4 h6 c3 h7 c2 f7 c1Q a5+ Ka7 d5 g3 d6 e3 Nd2 e2 Ne4 e1Q Nf3 Qcc3 Nc5 Qe6 Rh6 Qdf6 d8Q Qg4 Qc7+ Bb7 Nd7 Qfd4 Qc6 Qg5 Ne1 Qcb4 Be2 Nf6 g8Q Qgg4 g7 Nh5 Rf6 Qdc3 Qc1 Qcb3 Qc4 Qg6 Kg1 g2 Kh2 Be7 f8R Qgc2 Q6e4 Nc6 Ra4 Rd8 Ra3 Ka8 a7 Nd4 Ra1 Bd5 Ra4 Kb7 a8B+ Ka7 a6 Qbd2 Bb7 Rb8 Bc8 Qdc3 Ra1 Ka8 a7 Bd8 Ra6 Ba5 Rb6 Bb4 Qge6 Rb7 Q6g4 Bf7 g8B Bg6 Qg3 g1Q+ Kh3 Qge3 Kh2 Bf5 Qg1 Be6 Rc6 Rb6 Rc7+ Bd5 Rb7 Ba5 Bf7 Rg8 h8Q Rg6 Bg8 Qf2+ Qeg2 Rg3 Bh7 Rd3 Qg7 Rd1 Qe7 Rb1 Qe4 Qbb2 Qb4 Bb3 Qc4 Ba4 Qec6 Qf1 Qge4 Qc2b3 Qc2 Q2a2 Qb2 Qf2+ Ng2 Qc1 Nc5 Nc2 Qa1 Bd2 Q6e4 Qc3 Qb2 Qab3 Qc6 Ra6 Q6e4 Qff1 Ne1 Rc6 Rb6 Nd4 Rb7 Q1c2 Bcf5+ Rc8 Nd7 Rb8 Rc7+ Nc6 Rcc8 Kb7 Rcd8 Ka6 Rde8 Rb7 Rb8 Nd4 a8Q+ Ra7 Qad5 Rb7 Qcc6+ Rb6 Qdc4 Qf2+
7K/QnkrB1NR/2P4n/5Q1R/1bNq2q1/2qr1B1p/qBQ5/4BNbB w - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 a5 Kd3 d5 c4 Kd7 b4 h5 g7 e5 f6 h4 c5 a4 b6 a3 g6 a2 b5 Rh6 f7 Ra7 g5 Rc7 c6+ Kd6 b7 Be7 f8B Nf6 g8Q Na6 b8B Qe8 b6 Rh8 g7 Ne4 b7 Nd2 g6 Qd7 Be2 Qd8 Bb2 Ne4 Na3 Nf6 Nf3 Ng4 Qf7 Nh6 g8B Qd7 g7 Qg4 Rc1 a1Q Nh2 Qa2 Qc2 Qh3+ Bf3 e4+ Ke2 e3 Kd3 e2 Qf5 e1B Nf1 Bf2 Nc4+ Kc5 Bf7 Bg1 g8N Rd7 Bg3 Kb5 Nf6 Bb4 Bfd6 Rhd8 Be1 Qg3 Ne8 Nc5+ Ke2 Qg4 b8Q+ Nb7 Be7 Qh3 Qa7 d3+ Kd1 d2 Ke2 Qg3 Kd3 Qe5 Rd1 d4 B7d5 Qh8 Ke4 d3 Rc1 d1Q Ng7 d2 Ke5 Qe2+ Kf6 d1Q Kg6 Qd4 Rd1 Qee4 Rd2 Qc3 Rdh2 Qed4 Rh3 Qg8 R1h2 Qe6+ Kh7 Qee4 Bh1 Qg4 Bdf3+ Rd5 Qb8 Rd7 Kh8 Ka6 Qc7 Ka7 Qb6+ Kb8 Qa7+ Kc7 Rg3 Qh3 Rg5 Qhg4 Rh5 R5d6 Re2 h3 Re6 Ng8 Reh6 Rd5 Rh7 Nh6 Nb6 Qe5 Nc4 Rd3 Ba1 Qef4 Bb2 Qfd4
1R3Q2/3Bp2k/b4q2/Q2qn1RN/2qBbK2/r1B2P2/rQ1Q3N/3q1NnQ w - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 cxd5 f4 Qc2 f3 exf3 Na6 Qd1 Nb8 h4 g5 Ra2 g4 Ke2 g3 Ra1 gxf2 g4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qd8 Ke3 Kf8 b4 Kg7 d4 h5 d6 a5 b6 c5 b7 a4 d7 h4 b5 a3 b6 c4 d5 c3 d6 a2 Bb2 h3 Nd2 h2 Kf4 Rh7 Rb1 a1Q Ne2 Rh5 Bh3 f1Q Rg1 h1B Ng3 Qc7 d8Q Qa2 Bd7 Qe1 Ngf1 Nf6 Nh2 c2 Bc3 Ra7 Ndf1 Nc6 b8B Qee6 b7 Ra8 Ba7 Nd4 b8Q Bg2 Qb2 Qcc4 Qa5 c1Q+ Qdd2 Kg8 g7 Kh7 g8N Ba6 Bb6 Bh3 g6+ Kh8 g7+ Kh7 Rg3 Bf5 Rg5 Ng4 Ba7 Qd1 Nf6+ Kh6 g8Q Ne5 Qg2 Be4 Qh1 Qed5 Qgb8 Qa1 Qbd8 Rh3 Nh5 Kh7 Qf8 Rg3 Bb6 Rg2 Ba7 Nf5 Bad4 Ng3 Be6 Rc2 d7 Rd2 d8Q Ne2+ Ke3 Rc2 Bd7 Ng1 Kf4 Rd2 Qba3 Ra2 Rb8 Ra7 Qb2 Bc8 Qab4 R7a3 Qda5 Bb7 Qd2 Ba6 Qb1 Qb2 Qa1 Qb6 Qab2 Qf6+
2qkn2b/Q2r1r2/5rBB/p3RR1B/4K1RP/B3q2N/2nBn2q/N3Q2Q w - - 0 1 legal: proof: b4 a5 g4 b5 e4 d5 a4 h5 axb5 hxg4 c4 f5 cxd5 Bd7 exf5 Be6 b6 Bc8 b5 Ba6 bxa6 Rh4 Nf3 Rh7 Ng1 Rh8 Ke2 g5 Kd3 e5 h4 c5 f4 c4+ Ke4 g3 d4 g4 f6 c3 a7 c2 b7 g2 d6 g3 d7+ Kf7 d5 Rh7 f5 Qe7 d8R Bg7 d6 Qc7 d7 Bf8 Na3 Bg7 Re8 Nh6 d8Q Qc5 Qe1 Ng4 Nh3 g1R Be2 g2 Bd2 c1N Nc2 Qc8 Ra4 Nc6 b8Q Bh8 Na1 Nb4 Qd4 Nc2 Qb1 Rb8 a8B Rf1 Qa7+ Rb7 Rh2 g1Q Rf2 Rh6 Re6 Kf8 f7 Rd7 Bd1 Qh2 Bf3 Nge3 Bh5 Ne2 Bb7 Ng4 Qbc1 Kg7 f8B+ Kg8 Rf3 Rf6 Ba3 Rff7 Rb4 Kf8 f6 Rf2 Rf5 Rf1 Reb6 Ke8 R6b5 Kd8 Rd4 Rg7 f7 Nf6+ Kd3 Ne8 f8B Rf3+ Ke4 Rf7 Bfh6 Rf2 Qh1 Rf3 Qce1 Rf1 Rg5 R1f6 Rf5 Ne3 Kd3 Nd6 Rff4 Ng3 Qef1 Nc2 Be4 Ne8 Qf2 Rc6 Beg6 Rcf6 Rc5 e4+ Kc3 e3 Kd3 e2 Rff5 e1Q Rce5 Nd6 Rg4 Qeg1 Qf1 Ne2 Qe1 Ne8+ Ke4 Qe3+
r6B/BR1qB2r/2RKpQ1b/k1B1RP2/r6n/qB3N1n/1Q2Qn1q/4N3 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Kf2 Kd7 Kf3 h5 Ke4 c5 Ke5 Kc7 d4 Kb6 b4 a5 d6 c4 g6 h4 g5 a4 d7 c3 g7 h3 g6 c2 d5 f3 d6 h2 Na3 e6 Bc4 f2 Nf3 f1Q Bb3 Ra5 Rb1 Qc8 d8B+ Qc7 Be3+ Kb7 Qe2 c1R Bf6 Qc2 d7 Qc8 d8B Qd7 Bde7 Rh4 B3c5 Qe1 b6 Qf2 b5 Rcc4 Nc2 a3 Nce1 Nh6 g8Q a2 g7 Rca4 Qf7 Ra8 g8R a1Q+ Rb2 Bg7 Rc8 Qa3 Rc6 Bf8 Rf1 h1N Bh8 Qg2 Rb1 Nf2 Qf6 Nh3 Rg1 Qh2+ Rg3 Qe8 Kd6 Nd7 Rb2 Ng4 Rb1 Kb8 b7 Nde5 Rg1 Ngf2 Rg4 Bg7 Re4 Ng6+ Re5 Rh7 Rb2 Bh6 Rb1 R4a6 Rb2 Rb6 Rb1 Ka7 b8B+ Kb7 Ba7 Ra6 b6 Nh4 Rb2 Ra4 Rb1 Rc4 Rb2 Ka6 b7+ Ka5 b8Q Bd2 Bc2 Bh6 Rb7 Qf7 Bb3 Rb4 Qf8 Ra4 Q8g7 Qe8 Qg2 Qc8 Qb2 Qe8 Qf1 Qc8 Qfe2 Qd7+
3k2N1/BrnNb3/r1b4K/r2Q1BQ1/b2q1QQB/6R1/1r2Pp1Q/1N1R1r2 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 Kf2 a5 d4 h5 b4 c5 g6 c4 g7 c3 b6 h4 f6 c2 d6 f3 Ke3 g3 Kf4 f2 Kg5 h3 d7+ Kf7 d5 h2 b5 g2 d6 a4 b7 a3 b8Q a2 b6 Qe8 d8Q Nh6 g8N Qe4 d7 Ra7 b7 Ng4 Be3 c1R Nf3 g1R Ne5+ Ke6 f7 Qd4 Bh3 Rf1 Rg1 h1B Rg3 Rc6 Qa8 Rc2 b8Q Rh6 Qe4 Rb2 Qf4 Bb4 f8Q Rb7 Qg7 Bc6 Qa5 Bf8 d8B B8d7 Qc5 Be8 Nd7 Rg6+ Kh5 Be7 Qcg5 Ba4 Ne5 Bec6 Nd7 Rf6 Qd2 Rf5 Qg6+ Nf6+ Kh6 R7b3 Q6h5 Nd5 Qhg4 Rb7 Qd1 Nc7 Qd2 Qe5 Ba7 Qd4 Qa5 Kf7 Qd5+ Ke8 Na3 Bf6 Rd1 a1R Nb1 Be7 Qgf3 Re5 Bf5 Raa2 Q3g4 Ra3 Qg2 Reb5 Qa8 Ra5 Qh2 R7b6 Qb7 Rba6 Qb5 Rab3 Qd5 Rb7 Qg7 Bf8 Bh4 Be7 Q7g5 Kd8
1r1rbK2/1QnR1rR1/5N2/bR1BQ3/P3Br1k/2N2Bp1/1Bqb4/1B3r1N w - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 h4 d5 cxd5 e5 fxe5 Nc6 b3 Nd4 b4 axb4 gxf5 g4 Nc3 Ne6 Nb1 Ng5 hxg5 Qe7 Rh6 Qd6 Rh1 Qd8 Kf2 Kf7 Ke3 c5 Ke4 h5 a4 b5 d4 g3 e6+ Kg7 Ke5 b3 e4 b4 d6 h4 f6+ Kg6 e7 b2 e8B+ Kh7 d5 h3 f7 Kg6 d7 b3 Ke6 h2 e5 c4 d6 c3 Bd3+ Kg7 g6 c2 Nh3 Bb7 Qh5 Bf3 Nc3 b1R Bb2 c1B Be4 Be2 Nf2 Be7 f8N Qc8 Nh7 Qb8 d8R Qc7 d7 Be3 Nf6 Rf1 Rb1 Rh7 Qf3 Kh6 g7 Kg5 Kf7 Rc8 e6 Bb4 e7 Bd2 Kf8 Bb5 B8g6 Ba5 e8B Ne7 g8B Kh4 Bgd5 Rb8 Bh5 Rd1 Rf1 h1R B8g6 Qc5 Re1 Rf1 Nh1 Qc7 Qg2 Rf4 Bhf3 Qc4 Re3 Qd3 Qe2 Qc2 Rd3 Rf1 Rc8 Ra8 d8Q Be8 Qd7 Rg7 Rc5 Rd8 Qb7 Rh7 Rc7 Rg7 Bg8 Nd5 Qe3 Rh7 Rg7 Nc7 Bc4 Rb8 Rdd7 Rd8 Ba1 b2 Bcd5 Rh5 Qc5 Re5 Qd6 Re7 Qe5 Rg4 Rd1 b1R Bb2 Rf4 Bh7 Be1 Rd4 Bd2 Rb4 Qd3 Rb6 Qc2 Rb5 Rg1 Ba1 Be3 Qc6 Qd2 Bd3 Rg2 Rb4 Rgg1 Bhe4 Rgf1 Rb8 Rb6 Bb1 Qc2 Bb2 Bd2 Qa8 Rc6 Rb4 Rb6 Rb5 Rbb8 Qb7 Rf7+
4B2r/1r1Q4/2NN4/rbkPNQBp/4n3/3Q1K1n/1r2Q1Q1/Rq1nB1Rr w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 b4 Kd6 d4 a5 b6 e5 g7 h5 f6 c5 f7 c4 f8Q+ Ne7 g8Q a4 b7 e4 b5 c3 g6 c2 g7 e3 b6 a3 Kf3 a2 Qgf7 e2 g8Q e1R Nc3 Bd7 Qe2 Ra5 Qgg2 Na6 b8N Bb5 b7 Nc5 Nc6 Ne4 b8B+ Qc7 Q8e8 Ng6 Qf5 Rd1 Bd2 c1R Be1 Rd2 Ba7 Qh7 Bc5+ Kc7 Be7 Kb6 d6 Rb1 Bg5 Rdb2 d5 Kc5 Qd3 Qb7 d7 Qb8 d8Q Qb6 Bd2 Qb8 Qdd7 Qb6 Ke2 f3+ Ke3 f2 Be1 Qb7 Nf3 Nf4 Rg1 Nh3 Nfe5 Qb8 Be2 f1N+ Kf3 Ne3 Bd1 Qb6 Ba4 Nd1 Qee6 Ba6 Nb5 Qb7 Na3 Bb5 Nac4 Re2 Ne7 Nef2 Qe8 Bc6 Qf1 Rf8 N5g6 Rd2 Nd6 Rg8 Qee4 Rh8 Ne5 Nh1 Qd8 Ng3 Qdc8 Rh2 Qc7 Rh1 Qee2 Ne4 Qfg2 Rb6 Rb1 a1R Qcc8 Ra2 Ra1 Rb1 Qce6 Qb2 Qef7 Qc2 Q7h7 Rb7 Qg7 Rab2 Qgf7 Bb5 Q7h7 Bc4 Be8 Ba6 N7c6 Qb1 Qhd7 Bb5
r1B3bR/1p1Rb3/1QP2k1r/Q5N1/K1n3BR/7N/N1B4B/qBbrbb2 w - - 0 1 legal: proof: d4 a5 h4 f5 b4 e5 bxa5 g5 f4 c5 dxc5 g4 fxe5 Nc6 Rh2 Nd4 Rh1 Ne6 g3 Ng5 hxg5 f4 Rh3 fxg3 Rh6 Qc7 Rh1 Qd8 Kd2 Ke7 Kc3 h5 Kb4 d5 e4 g2 a4 d4 c4 g3 a6 d3 e6 h4 g6 d2 g7 h3 c6 h2 a7 Rh4 c7 Rh3 a5 Rb8 a8R Rh6 a6 Rh8 c5 Qd5 a7 Nh6 g8B Qd3 e5 Nf7 c6 Bg7 Bh7 Rg8 Nh3 g1B Be2 g2 Bg4 Qf1 Bc2 Bc5+ Ka4 g1B Nc3 Bgd4 Na2 Qf6 Qg1 d1B Bf4 Bf3 Rd1 Bd7 c8B Bb2 Qf2 Bca3 Qb6 Nd6 Rd4 Be4 Rhd1 h1R Bh2 Rh8 R1d2 Ke8 e7 Kf7 e8N Rh6 Nc7 Rd1 Ne6 Bh7 Neg5+ Ke7 e6 Bg8 Rb4 Bc1 Bb1 Qe5 Rd5 Kf6 e7 Nc4 e8B Bh8 Beg6 Qa1 Bgc2 Bf5 Rd8 Bd3 Rd7 Bf1 Bf3 Nd6 Rh4 Nc4 Bg4 Be7 Rd8 Bh7 Bce6 Kg7 Rd2 Rf8 Re8 Rg8 a8Q Rf8 Rd3 Kg6 Rb8 Bc3 Qaa5 Be1 Re8 Kf6 Rd4 Rf7 Rh8 Rf8 Rd5 Rb8 Bc8 Bg8 Rd7 Ra8
R1nn2RQ/q7/Kp2k1nQ/N1RNnNP1/4R3/2B2r2/Q1Rb1qn1/3B2b1 w - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Nc6 g4 Ra7 f4 Nb8 b4 axb4 f6 Kd7 f7 Ra4 f5 Ra8 f6 g5 h3 Kd6 Be2 Bf5 Bd3 Kd7 gxf5 g4 Bf1 g3 Qc2 Ra5 Qd1 Rc5 Bg2 Rc4 Bf1 Rg4 hxg4 Qc8 Ba3 Qe8 Bc1 Qd8 Ke2 c5 Kd3 e5 Kc4 h5 Kb5 b3 a4 e4 d4 h4 d6 h3 g5 g2 d5 b2 a5 c4 a6 b6 a7 e3 a8R e2 Qb3 e1N Nc3 b1N Be2 h2 Qa2 Qe8 Bd2 Qc8 Bd1 Nc6 Nf3 g1N Nd4 Qd8 Ka6 Bg7 f8Q Qb8 f7 Nd8 f6 Ne2 Nf5 Ng2 Re1 Nef4 Re4 Na3 Rc1 h1Q Rc2 Qh2 Be1 Kc8 d7+ Kc7 Qe8 Ne7 f8R Nfg6 f7 Nc8 Rg8 Bd4 f8Q Rh3 Qh6 Bg1 d6+ Kc6 Qef8 Rf3 Nd5 c3 Qf6 Qh4 Qfh8 Nc4 Bd2 Nce5 Be1 Ndf7 d8N+ Kd7 Nc6 Qf2 Na5 Ke6 d7 Qc7 d8R Qb7+ Kb5 Qa7 Rd7 Nd8 Rc7 Qh4 Rc5 Qf2 Rc1 c2 Bc3 Qc7 Ka6 Qg7 Rb1 c1B Rb2 Bd2 Rc2 Qa7+
1qB1n3/4R1P1/B1q1BK1Q/1N2N1Q1/1k1pb1r1/2RqQBq1/Rr1q1B2/5n2 w - - 0 1 legal: proof: g4 b5 d4 c5 f4 cxd4 a4 f5 axb5 g5 fxg5 f4 h4 e6 e4 f3 g6 Qb6 g7 Be7 g5 Qd8 g6 Bg5 hxg5 f2+ Kd2 Qc7 Bc4 f1N+ Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Kf2 Ke7 Kf3 Kd6 Kf4 Kc5 Ke5 a5 b4+ Kb6 c4 h5 f6 d5 f7 a4 f8Q d3 Qe2 a3 Qe3+ d4 Rh3 d2 Nf3 d1Q Ra2 h4 Nc3 Nh6 g8B Ra4 g7 Na6 g6 Qd3 Bh7 Ra5 g8B Nf5 Qfh6 Bb7 g7 Ng3 Be4 Qb8+ Kf6 e5 Be6 Nc7 B4d5 e4 Ne5 Ra4 Bd2 Ra5 Be1 Ba8 Be2 Nf1 Bf2 Ra7 Qeg5 e3 Bdf3 Rb7 Rg3 h3 c5+ Ka7 b6+ Ka6 c6 h2 b5+ Ka5 Rh3 h1Q Rg3 Kb4 Rh3 Ra7 b7 Ra6 b6 Ne8+ Kf7 Qh2 c7 Qg3 c8B Rf8+ Ke7 Rf4 Nb5 Rg4 Kf7 Qd1 Bd3 e2 Qe3 e1Q Qhg5 Qd6 b8Q Qed2 b7 Qc6 Qc7 Qb1 b8R Rb6 Rb7 Qbc2 Bdc4 Qcd3 Ra7 Rb8 Qb6 Bb7 Qa6 Ba8 Re7 Rb7 Rc2 a2 Qb6 a1Q Ra2 Nd6+ Kf6 Qab2 Bf5 Rb8 B4e6 Qbb3 Ba6 Rb7 Bc8 Qg8 Bfe6 Qd8 Bcd7 Qb8 Bc8 Ne8+ Kf7 Qg2 Qef4 Q3e3 Na7+ Qb5 Bb3 Qc7 Qbh6 Kc3 Bfd1 Qb8 Bbe6 Qh2 Rf3 Qg3 Qe4 Qd7 Qef4 Rb1 Nb5+ Kb4 Kg6 Qee2 Rc3 Rb2 Qe3 Qed3+ Kf7 Be4 Bf3 Nd6+ Kf6 Qe8 Bd1 Qc6 Bf3 Ne8+
2k2rRN/1RBr1bB1/n3qq1r/3NnBNn/R3B3/Q1p2Q2/1PK5/2n2B2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 d4 Kd7 Kd2 a5 g7 e5 g6 c5 d6 h5 b6 e4 f6 c4 b7 f3 d5 a4 f7 f2 f8Q h4 Nc3 a3 Kc2 a2 Bh6 e3 Nf3 h3 Ng5 h2 Rg1 h1N Qdf3 Ne7 g8B e2 g7 e1Q Bh7 Ra4 g8B Qe6 Bf5 Ng6 Bg7 Ra7 Bh7 Na6 b8R Ng3 Rb5 Rc7 Rb7 Ne5 Be4 Nh5 Bhf5 Rh6 Rg4 Qe8 Rg2 Kd8 d7 Qf6 Qa3 Qee7 Ne2 c3 Nf4 Qee6 Rg4 Rc6 Rg1 Rd6 Rg4 Ke7 d8B+ Ke8 Bc7 Rd7 Bb5 f1R d6 Rf2+ Be2 Rf1 Nd5 Rf2 Rd1 Rf1 Rd4 Rf2 Ra4 a1N+ Kb1 Nb3 Kc2 Rf1 B2d3 Nc1 Bc4 Rd1 Bf1 Rf7 Rg3 Kd7 Rg1 Rf8 Rg2 Kc6 d7 Rd3 d8N+ Kd7 Ndf7 Rd4 Rbb4 Bb7 Rg4 Kc8 Nh8 Bc6 Rb6 Be8 Rb7 Bf7 Ne3 Ng6 Nh3 Qg5 Bge5 Rd7 Nd5 Qd8 Rg5 Ne7 Rg8 Ng6 Bg7 Ne5 Ng5 Qdf6
1RR3b1/1N1NN2n/qqB1bN1K/2n2qPp/1nr1n3/BQ2Q1N1/3B3k/Q7 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Kf2 g5 Ke1 a5 h3 Bh6 h4 Ra6 Qc2 Rf6 Qd1 Rf5 gxf5 g4 Rh2 Qd6 Rh1 Bg5 hxg5 Qd8 Kf2 Ke7 d4 Kd6 b4 c5 e4 a4 e5+ Kd7 d6 a3 f6 Ke6 d7 Kf5 f7 h6 f8B a2 e6 c4 e7 c3 e8N c2 d5 Ne7 b6 Ke5 d6 Rg8 b7 Qc7 d8Q Nbc6 b8N Qa5 d7 Ng6 b5 Nb4 Bd2 c1N b6 Nb3 b7 Nc5 Ne2 h5 Bg2 Qb5 Qb6 Rh8 d8N Be6 Be7 Nf8 Nf6 Nh7 Nbc3 Bg8 Rc1 a1Q Qa7 Qaa6 Ng3 Qd7 Rc2 Qf5 Qa1 Be6 Rb1 Rg8 Kg1 f2+ Kh2 f1B Bc6 f3 Qb6 f2 Nbd7+ Kd4 b8Q Bfc4 Kg2 f1N Nb7 Rc8 Ncd5+ Kd3 Bd6 Bg8 Ne7 Bce6 Be5 Rc7 Bb2 Rc8 Ba3 Rc7 Bdc1 Nd2 Qe8 Nde4 Bd2 Nd5 Rc3+ Kd4 Qb3 Nb4 Nh1 g3 Rb2 Qh3+ Kf3 g2+ Kf4 g1Q Rb1 Qhd3 Ng3 Qdb5 Rb2 Qbb6 Rcc2 Qb1 Rc1 Bef7 Kf5 Be6+ Kg6 Qbd3 Be1 Ke3 Bd2+ Kf3 Kh6 Kg2 Qb8 Qf3 Ba4 Ncd3 Nd8 Qbb7 Qa7 Rc3 Qba2 Nc2 Qe3 Kh2 Qd5 Qc7 Rb8 Qf5 Qb3 Ncb4 Nb7 Qcb6 Bb5 Rc4 Ba4 Rd4 Rcc8 Rc4 Bc6 Ndc5
2Q2B2/2B5/1QNq4/B3PpKb/1n5N/3kn2n/r1RrnBR1/1rBN1qR1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 d5 c4 Kf7 cxd5 Bb4 g5 Ke8 Bh3 Be7 Bg4 Bf6 gxf6 hxg4 Kf2 Kd7 Ke3 c5 Kf4 a5 b4 a4 d4 g6 e4 c4 h4 a3 h5 c3 d6 Ke6 b6 g3 h6 c2 h7 g2 d7 a2 b7 Ra4 b5 Qb6 d8R Na6 b8B Rb4 f7 Qa7 f8B Rc4 b6 Ra4 b7 Qb6 Bc7 Ne7 b8N Nb4 Kg5 Qd6 Nc6 Ned5 Rh2 Bb7 Rc8 Ne3 Nf3 g1N Nh4 Ne2 Nc3 Nf4 Qg1 Ra7 Rb1 a1R Nd1 R7a2 Rg2 Ba6 Ba5 Be2 Bc7 Rg8 h8B Bh5 Bf6 Rh8 Bfd8 Rh6 Ba5 Rh7 Bdb6 Rd7 Bc7 Nbd3 Be1 Nb4 Bf2 Rd8 Ba3 c1N d5+ Kd7 Ba5 Nce2 Rc1 Rb1 e6+ Ke8 e7 Kf7 Rc2 Rd7 Bc1 Rd8 Kh6 Kf6 e8Q g5 Rb8 Rd7 Qc8 g4 Rb7 Rd8 Rg7 g3 Bc7 Qc5 d6 Qd5 d7 Qd6 Na5 Ke5+ Kg5 Kd4 e5 Ke4 Nc6 Kd3 Rh2 g2 Rg8 Re8 d8B Re7 Ba5 Rd7 Bdc7 Rd8 Qf1 g1Q+ Rg2 Rd7 Qe1 Qf1 Rg1 Nbd5 Qb4 Rd8 Qbb8 Nb4 Qb6 Qd7 Bb2 Ke4 Kh6 Qe6+ R8g6 Rd2 Bc1 Qd7 Rg8 Kd3 R8g2 Qd6+ Kg5 Nh3+
1r1BB1NB/4P3/1R1Bb1rp/q2n4/1QR2NB1/2bq2k1/1rQb2N1/2K3rR w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 b4 Kd7 d4 Kd6 Kd2 c5 e4 a5 f6 h6 b6 f3 b7 c4 b8Q+ Qc7 e5+ Kd7 g6 f2 d6 Ke6 d7 Kf5 d8N Kf4 d5 a4 e6 a3 g7 g3 d6 g2 d7 a2 f7 Nf6 g8B Bb7 b5 Ra6 b6 Ng4 Nc3 Ba3 f8B Be4 b7 Bd3 Ne4 Be7 Bb2 c3+ Kc1 c2 Ne2+ Kf3 Nf4+ Be2 Nf6 g1R Bf7 Ne3 Be8 Kg3 Ng8 Bb4 Ng2 Bg4 Be2 f1Q Rh4 Bh3 Rc4 Nd5 Bg4 Be1 Bc3 Qe5 Bd6 Qd3 e7 Rc6 Rb1 a1B Ne6 Rb6 d8B Rb2 Nef4 Qg5 Bf3 Be6 Bg7 Qe5 Bg4 Qec3 Qd2 Qa5 Qc8 Qf5 b8R Qd3 Nf6 Rf8 Bh8 Rg8 Rb6 Rg6 Rbc6 Rb8 Ng8 Bc3 Rcb6 Bb4 Kb2 c1R Qc2 Rd1 Qc5 Rd2 Kc1 Bc3 Qb4 Rf2 Rb5 Nc7 Rh5 Nd5 Rh1 Re2 Qba4 Rd2 Rb6 Re2 Qb4 Rf2 Qd1 Rb2 Qc2 Bed2#
1bB5/2N1P2Q/Q1pB4/B3Nq1K/Q3rk1b/3bb1q1/1q3NQ1/nRnRQ3 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 g5 h3 Ra6 h4 Rg6 gxf5 exf4 Bg2 g4 Bf1 Rg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 Kf2 Ke7 b4 Kd6 e4 Ke5 d4+ Kd6 e5+ Ke7 b6 h5 e6 Kd6 e7 c6 b7 g3+ Kf3 h4 Kg4 f3 g6 g2 b5 h3 b6 f2 g7 h2 Bf4+ Kd7 d6 a4 d5 a3 f6 a2 f7 Rh5 Nc3 Rh3 Ba6 f1Q Nf3 g1B Ne4 Bf2 Rb1 a1B Qa4 Bh4 Nf2 Be5 Kh5 Nh6 g8Q Qc7 Qh7 Ng4 Rd1 Bfg7 f8Q Ne3 Qfg8 Bh6 Qg2 Nc2 Bd2 B6g5 Ba5 Be3 Rg1 h1Q Rb1 Beg3 Ne5+ Ke8 Rd1 Nd7 b8N Na1 b7 Nc5 Rb1 Qc1 Rd1 Bd7 Be2 Qe1 Na6 Qb2 b8B Ncb3 Bg4 Qf1 Bf5 Be6 Bg4 Bg8 Bc8 Nc1 Nc4 Qd3 Bc3 Na2 Qb3 Qdc2 Qb5 Bc5 Ba5 Qg7 d7+ Kf7 d8Q Kf6 d6 Nc1 d7 Qe4 Na3 Ke5 Qa4 Qd6 Qb6 Bc4 Qbb4 Bd3 d8Q Bh2 Qd7 Re3 Qdb7 Ba7 Qe1 Qf5+ Qg5 Re4 Nc4+ Kd5 Qb6 Qb2 Bc7 Bf4 Bb8 Qde5 Bd6 Bb8 Qbb5+ Kd4 Nc7 Be3 Qa6 Rf4 Ng4 Ke4 Nf2+ Kf3 Q4b5 Qg7 Qbb4 Re4 Qa4 Qd7 Qgg1 Qg3 Ne5+ Kf4 Qg2 Qf5+
r1nQq1N1/p1r1R1r1/RRPQB1Nb/R4n2/1q6/K6k/3B2n1/2BR1rQ1 w - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 e5 b4 Ke7 c4 h5 Kc2 d5 Kb2 h4 c5 h3 b6 h2 c6 d3 b7 e4 f6+ Ke6 b5 d4 g7 d2 f7 d3 g6 e3 b6 e2 g5 Kf5 Ra6 Kg4 Nc3 Kg3 Nd5 e1Q Nf6 Qe3 Nh3 Qe4 Nf4 Qf3 Bh3 Qe7 Be6 Qc5 Qg1+ Qg2 Kb3 Ne7 g8R d1N g7 d2 g6 Qf5 Ka3 Nd7 b8R Qc2 b7 Nb6 Re8 Qf5 b8R Nbc8 Rbb6 Qb1 Qd4 Qge4 Qd6 Nf5 Re7 Nde3 Rd1 Rh6 Rh8 h1R g8Q Qe5 g7 Ng2 Ng6 Rf1 Rh7 Rh4 Rh5 Rg4 Qh8 Qe4 g8Q Bh6 f8B Q4f4 Rg5 Kh3 Qgg7 Qfe4 Ng8 Qb5 Qgd4 Qbe2 Qg1 Q4c4 Re1 d1R Qhd4 Rd2 Rd1 Qb5 Qd8 Qe4 Qe5 Rd7 Qd6 Rc7 Bg7 Qbc4 Bc3 Qcd4 B3d2 Qh8 Nf6 Qe8 Ng8 Qb4+ Ka2 Nd4 Rd5 Nf5 Rda5 Qf4 Ka3 Qd4 Nh4 Rg7 Ng6 Qb4+
Bkr1bR2/5N1Q/1n1b1BN1/3rRKp1/3r1n1N/rQ1Q1P1Q/b3rQ2/7B w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 exf5 g5 h4 Nf6 a4 Qd6 axb5 Ng4 h5 Qg6 hxg6 Ne3 Ke2 Nxg2 Kd3 Kd7 Ke4 h5 b4 c5 d4 Kc7 g7 e5 g8B a5 d6+ Kb7 b6 c4 f6 a4 b5 c3 d7 c2 d8Q a3 d5 h4 f7 a2 d6 h3 d7 h2 Bb2 c1R Nf3 Rc6 Nh4 Rc4+ Kf5 e4 Nc3 e3 Qb1 e2 Nd5 e1R Nf4 Bc5 f8Q Ra6 Bd5+ Nc6 Bf6 Bd4 Nfg6 Kb8 b7 Nf4 Bfg2 Re8 Rf1 Re2 Bh1 Ka7 Qf7 Ra3 b6+ Ka6 b8Q Bc5 b7 Na7 Qb2 Bd6 Qh7 Rd4 Rae1 a1R Qbc7 Rc1 b8Q Rcd1 Ba8 Bb7 Qa2 Nc8 Qc3 Nb6 Qh3 Bd5 Qd2 Ba2 Qb2 Nbd5 Q8b3 Ka7 Q2c2 Nb6 Qf8 Rc4 d8N+ Kb8 Nf7+ Rc8 Qd8 Rd4 Qcd3 Rf8 Qe7 Rfd8 Qee3 Rd7 Qeg3 Rb2 Re8 Re2 Rf8 Rdd8 Rc1 Rd7 Rc5 Rdd8 Re5 Rd5 Be4 h1B Qg1 Bf3 Qgf1 Bh5 Bh1 Rc4 f3 Rcd4 Qf2 Rc8 Ne7 Raa5 Nh6 Be8 Neg6 Raa4 Nf7 Ra3
1r1nQR2/b1B1pbQ1/1r4PR/NN1r2NQ/1K1n3r/1B1R2bN/3r4/1k1N4 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ba6 g5 Bc8 h5 Qd6 Ne2 Ng8 Ng1 Qg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 d4 Kd7 Kd2 Kd6 Kc3 c5 b4 a5 f6 h5 b6 c4 f7 a4 b7 a3 g7 a2 g6 f3 b5 f2 b6 h4 Kb4 h3 Qh5 h2 Nh3 c3 Bc4 f1R Bb3 c2 Nc3 Be6 Nd1 Nh6 g8Q Ra6 Qg7 Rf5 Bf4+ Re5 Rb1 a1R Rb2 c1B Rd2 R1a3 Rd3 Ra2 Bg3 Nf5 Bf4 Nd7 b8N Rd2 b7 Nc5 Nc6 Rg8 b8N Nb7 Bg3 Nd8 Na5 Rc6 Na6 Rb6+ Kc3 Ba3 Nc7 Bc5 Bf4 Rb8 Bg3 Ba7 Kc4 Rb6 Nb5+ Kd7 Kc3 Rh8 d6 Rd5 Kb4 Rg8 Qf6 Bg7 f8R Bf7 Bf4 Bh6 Qg7 Ke6 d7 Bg5 Bc7 Bh4 Nb7 Bg3 Na5 Nb7 d8Q Rh8 Rg1 h1R Qe8 Rhh2 Rh1 Nd8 Ng1 Rh4 Nh3 Ne3 Qhh7 Kf5 Qh5+ Ke4 Rh2 Rdd6 d5 Nf5 Rh1 Nd4 Rh2 Re6 d6 Re5 d7 Rd5 Rh1 Nb7 d8N Rg8 Ne6 Nd8 Rc3 Rh8 Rc6 Kd3 Rd6 Rg8 Neg5 Rh8 Bc4+ Kc2 Bb3+ Kc1 Rf6 Bh2 Rf3 Bg3 Rd3 Kb1 Ng1 Be6 Rff3 Rbd6 Qc6 Rf4 Qg4 Nb7 Rh6 Rb8 N1h3 Nd8 Qh5 Rh4 Qe8 Rdb6 Rf8 Bf7
q5k1/N7/2b1RR2/Qb2B1r1/Nb1K1PpQ/4rRR1/2b2rQn/r1BN2R1 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 f5 axb5 e6 gxf5 Ba6 c4 Bc8 cxd5 Kd7 d6 Ke8 d7+ Ke7 h3 g5 d5 Kf7 d6 Nc6 Bg2 Ne5 Bd5 g4 h4 Nf3+ Kf1 Ng5 hxg5 exd5 Ke1 Qe8 Qc2 Qe7 Qd1 Qd8 Kd2 a5 Ke3 c5 b4 h5 f6 a4 b6 h4 g6+ Ke6 f7 h3 b5 a3 b7 a2 b8B h2 g7 c4 b6 c3 b7 c2 Kd4 Ra7 e4 Qh4 d8Q Qf6+ e5 Rh3 d7 Ra5 Nc3 Rc5 Qf1 Qg5 Qa5 Nf6 d8Q Re3 g8R Ne4 Nge2 Ng3 Na4 Bd7 Nec3 Bb5 Rg1 h1B Qg2 Nf1 Nd1 Nh2 Rg6+ Qf6 Rb1 a1R Rb3 Bd6 f8R Be7 Rgg8 Qh8 Rf3 Bd6 Rg3 Kf7 Rg6 Qf8 Rh6 Kg8 Qh4 Ra2 Bc7 Qa8 b8N Be7 f4 Bd6 Ba3 c1R e6 Rca1 e7 Rf2 e8R+ Bf8 Re4 Bd6 Rf6 Be7 Bc1 Bf8 Ke5 d4+ Ke6 d3 Nc6 d2 Be5 Rd5 Na7 Bb4 Rd3 Re1 Rdf3 Re3 Beb2 Rg5 Be5 Qf8 Kd5 Qb8 Ndb2 d1B Kd4 Bc2 Nd1 Qa8 Bc7 Ba6 Ree6 Bb5 Be5 Bc6 Qf1 Bg2 Qe2 Bf1 Qd2 Bfb5 Qe2 Rf1 Qg2 Rf2
RbBN2k1/br3RnN/2br3n/5B2/2r2p2/r2N2QB/1QN1P1Rb/4N2K w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bg4 b3 Bc8 h4 Ne7 g4 Qd7 h5 Nbc6 Ba3 Qe6 Bc5 Qh6 Be3 Qg6 hxg6 Nb8 Bf4 gxf4 g5 Ng8 Kf2 a5 Kg2 c5 d4 f5 d6 h5 g7 Kf7 e6+ Ke8 d5 a4 b6 a3 g6 c4 d7+ Ke7 d8N h4 b4 c3 d6+ Ke8 b7 a2 d7+ Ke7 b5 c2 b6 c1B Nf7 Be3 d8N Bd2 Qb3 Na6 b8Q Rh6 b7 Bd7 Rh2 h3+ Kh1 f3 Ne5 f2 Qb2 Nc5 Rg2 h2 Nd3 Be3 Qg3 Ra3 b8R Bc6 Nf3 Bf4 Rb4 Bb8 Rb7+ Ke8 e7 Ne6 Nfe1 Rh4 Qf6 Rc4 Qb2 Nh6 g8B Ng7 Be6 f4 Bf5 Ba7 Nc3 Bb8 Nd1 Ba7 Rc1 a1B Ne3 Bb8 N3c2 Ba7 Qb6 Be5 Ra1 Beb8 Qb2 Bb5 Rg1 Bc6+ Bg2 f1R Rc7 Rf3 Bgh3 Re3+ Rg2 Re6 Rb7 Rd6 Rc7 Ne6 g7 Bg1 g8B Ng7 Bge6 Bba7 Bc8 Bb8 Ne6 Kf7 e8N+ Kg8 Rf7 Be7 Nf8 Bh4 Nc7 Bga7 Qf3 Bhf2 Nce6 Bfc5 Nd8 Bg1 Rg4 Kh8 Nh7 Kg8 Kg2 h1R Ra2 Rd5 Qg3 Bh2 Rg6 Rf1 Rg5 Rf3 Kh1 Rd6 Rg4 Rb3 Ra6 Rb7 Rg6 Bag1 Ra8 Bga7 Qg1 Re3+ Rg2 Rf3 Qf2 Re3 Qg3 Rf3 Nf2 Rfc3 Nfd3 Ra3
3k1b1r/3bbB2/1n4p1/BBK1nNbR/1N4Nr/2Rr2PR/3r2Q1/1Q3B1B w - - 0 1 legal: proof: b4 b5 h4 d5 c4 e5 cxd5 a5 a4 Qf6 h5 Qg5 h6 f6 axb5 a4 f4 Ra5 bxa5 exf4 Ra2 g6 Ra1 Qf5 Bb2 Qd7 Bc1 Qg7 hxg7 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 c5 e4 h5 d4 f5 g3 f3 Ke3 h4 e5 a3 b6 f2 e6 h3 d6 a2 d7+ Kd8 d5 c4 Kd4 h2 a6 c3 a7 c2 a8B f4 b7 f3 e7+ Kc7 d8R Bh3 e8B Ba3 d6+ Kb6 d7 Kc7 Qe2 Bg4 Bd2 c1B Rc8+ Kd6 d8N Nh6 g8B Bd7 Ba5 Nf7 Rc3 Ne5 Ne6 Ke7 Bgf7 Bg5 Nh3 Bd6 Ng7 Ba3 Bb4+ Kd8 Nf5 Be7 Qd2 Bc1 Qe2 Bcg5 Na3 Bf8 Rac1 a1B Nc2 Bb2 Kd5 Ba3 Rc5 Rh4 Be1 Bfe7 Nb4 Bf8 R1c3 Bfe7 Bg2 f1R Nf2 Rg1 Bd2 Rd1 Ng4 f2 Bf1 Bf8 Qe4 Rh8 Qg2 Rh4 Bc4 f1R Kd4 Rf2 Bf1 Bc6 Ra5 Nbd7 Rb5 Nb6 b8Q+ Nc8 Qb7 Bd7 Qbe4 Nb6 Qb1 Bfh6 Kc5 Bf8+ Ne7 Rf6 Be4 Rd6 Nf5 Bfe7 Be1 R1d2 Ra5 Be6 Beb5 Bd7 Ra8+ Kc7 Rh8 Bf8 Rh5 Kd8 Rg1 h1R Ba8 R1h2 Rh1 R2h3 Rd3 Nc8 Qd5 Rdh2 Kd4 Rc2 Na2 Re2 Ba5+ Nb6 Rh8 Rh6 Rc3 R3h4 Rh3 Re6 Qh1 Bd6 Nb4 Bde7 Bag2 Rd6+ Kc5 Rh7 Qg1 R7h6 Bh1 Red2 Qg2 R6h5 Rg8 Rh7 Rg7 Rh8 Rh7 Bc8 Rh6 Bd7 Rh5 R6d3+
1nBnBN2/k2nQbbN/4P1K1/1B6/2RR4/Nb2rr2/nQ2p1Bb/4B1Q1 w - - 0 1 legal: proof: d4 b5 h4 d5 f4 c5 a4 g5 axb5 e5 hxg5 Qd6 e4 cxd4 exd5 e4 Rh5 Bg7 Rh1 Qe5 fxe5 Bf8 Kf2 Kd8 Kg3 Kc7 Kf4 Kb6 g4 h5 c4 a5 b4 f5 c5+ Kb7 g6 a4 Kg5 e3 c6+ Ka7 c7 f4 g7 e2 d6 h4 b6+ Kb7 b5 h3 d7 f3 d8Q a3 Qe7 a2 Bg2 d3 Kg6 d2 g5 h2 Na3 Nf6 g8B Ra4 Bf7 Ra5 Be8 Be6 Nh3 Bg8 Qg1 d1N Bd2 Bg7 Rc1 a1B Be1 Nfd7 Rc4 Nc3 c8B+ Ka8 Rd4 Na2 b7+ Ka7 e6 f2 b6+ Ka6 Rc4 f1N Rd4 Rf5 Rc4 Nf6 Bed7 Nd2 Bb5+ Ka5 Rd4 Nfd7 Rc4 Rf3 Rd4 Nc6 b8Q Nd8 b7 Kb6 Qe5 Bb2 b8N Ka7 Rc4+ Re3 Q5f6 Ba1 Qb2 Ne4 Rd4 Nf6 Rc4 Ne8 Rd4 Nc7 Rc4 Nb6 Nd7 Na6 Nf8+ Nd7 Nf4 N6b4 Nd5 Rh3 Nf6 Nbc6 N6h7 Be5 Kf5 Bb8 g6 Rf3+ Kg5 Bd6 g7 Nb8 Kg6 Be5 Qf2 Bg3 Rf1 h1B Qg1 Bh2 Rf2 Rh3 Rff4 Rf3 Rfd4 Rf5 Bgc6 Be4 Bd5 Bc2 Bg2 Rff3+ Kh6 Bf7 g8B Bb3 Kg5 Bg6 Bf7 Bd3 Nf6 Bh7 Be8 Bg8 Kg6 Rd3 N6h7 Rde3 Qc1 Bb2 Rf4 Bd4 Qb2 Bg7 Rfd4 Bf7+
1rB5/2Q4n/1BrNQnRK/4n1n1/2Pr4/3N2Bn/BRpB1bRn/1N3k2 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 h4 gxh4 a4 Bg7 axb5 Nf6 c4 Kf8 b6 Ke8 b7 Ng8 b5 Bf8 Bb2 c5 Bc1 d6 b6 Bd7 d3 Bb5 cxb5 c4 Rh3 c3 Rh2 Qc8 Rh1 Qc4 dxc4 Kd7 Qd4 Kd8 Qd1 Ke8 Ke2 Kf7 Ke3 Kf6 Kf4 h5 g4 e5+ Kf3 a5 Na3 h3 Qd5 h4 Bd3 e4+ Kf4 e3 Bb1 e2 Rh2 e1N Rg2 c2 Ne2 a4 Ng3 h2 Ba2 h1N Bd2 h3 Nb1 Nd7 b8B h2 b7 a3 b6 Rh6 f3 Ne5 g5+ Kg7 g6 Kf6 g7 Nf2 Ba7 h1N b8B Nfg4 b7 Nh2 Bb6 Nf2 Qc5 d5 Qc7 Ne7 g8B d4 Bf7 d3 Be6 Ne4 Bc8 Ng5 Ne4+ Kg7 f6+ Kg6 f7 Kh5 Bb3 Kh4 Ba2 Ng8 Nd6 Nh7 Kf5 Kh3 f4 Be7 f8N Bh4 Nd7 N1f3 Nc5 Re6 Rg6 Bf2 Rg2 Ngf6 Rg6 Ned7 Rg2 Nfg5 Kg6 Re4 f5 Rd4 Kg7 Ne5 Kh6 Nfd7 f6 Ra6 Bda5 d2 f7 d1N Nd3 Ra8 f8R Ra6 Rf5 Ndf6 Bd2 Ra8 Qf7 Ra6 Qe6 Ra8 Bb3 a2 B8c7 Ra6 b8Q Ra8 Qa7 Rb8 Qb7 Ngf3 Rg6 Nfg5 Rf3+ Kg2 Rg3+ Kf1 Rg2 Bg3 Qc6 Nf2 Qcd7 Ra8 Bb8 Nfh3 Qc7 Ra6 Na3+ Be1 Rb1 a1R Rb2 Bf2 Nb1 R1a5 Ba2 Ra8 Bf4 Rc5 Bg3 Rc6 B8a7 Rd5 Be3 Rb8 Bab6 Rd4 Bc1 Ne8 Bd2 Nef6
1Bq1R1qR/n2Prbb1/1b5Q/1kBb2Kq/2qp4/2B5/1BN1B1QR/1NN5 w - - 0 1 legal: proof: e4 f5 exf5 d5 h4 g5 c4 gxh4 a4 b5 axb5 d4 Bd3 a6 Be2 Nc6 Bf1 Nb8 d3 c5 Qe2 a5 Qg4 Ra7 Qe2 Rd7 Qd1 Nc6 Rh2 Ne5 Rh1 Rd5 cxd5 c4 Be2 c3 Bf1 Nc4 dxc4 Qd6 Ra2 Qc7 Ra1 Qd8 Ke2 Kd7 Kf3 h5 Kf4 h3 g4 e6 b4 a4 b6 c2 c5 h4 c6+ Kd6 b7 h2 b8B+ Qc7 f6 e5+ Kg5 h3 f4 e4 f7 a3 b5 Kc5 d6 e3 f5 a2 d7 e2 b6 e1Q b7 Qee5 Ne2 Bg7 f8B+ Kb6 Bc5+ Ka5 Bb2 c1Q+ Qd2+ Qc3 Nc1 Rh7 Be2 Qe4 f6 Qg2 f7 Ne7 f8B Qd8 c7 Nc6+ Bfe7 Na7 Qf4 Qf8 Qd6 Qc2 Qh6 Qc4 Bb4+ Kb5 B4c3 Qg8 Re1 h1Q Bc5 Qhh2 Rh1 Qhg3 Rh2 Qh4+ Kf5 Qh1 g5 Qc6 g6 Qh5+ Kf4 Bf6 g7 Qa6 Rf2 h2 Rg2 h1B Rh2 Qgf7 g8Q Bd5 Qg2 Qg8 Bd6 Re7 Bc5 Qhe8 Kf5 Bg7 Kf4 Bf7 Kg5 Nc6 Bba7 Qa5 b8N Bb7 Na6 Qc8 Bb8 Na7 Nb4 Bc6 Nc2 Bcd5 Nd2 Qca6 Rb1 a1B c8R Qb7 Re8 Qc8 Nd3 Bh5 Rbh1 Bhf7 Bba3 Bb2 Nb1 Ba1 Nc1 Bb2 Bc3b4 Bc3 Bb2 Be1 Bd2 Bg3 Bdc3 Bc7 Qe6 Bb6 Rh8 Qaa6 R1h2 Qab7 Qg6 Qbc7 Qh6 Qe5+ Kg4 Qf5+ Kh4 Qf3 Kg5 Qh5+
B1BQN3/1P1q4/5R1q/RB1b3N/bB1n2kb/3q4/B1Q1r1p1/R1qb1Q1K w - - 0 1 illegal: No possible last move, all moves rejected
Nrb4b/7b/Q3R3/1RQ1n1RB/NRrp1P1B/3rkpq1/1n5K/NR3B2 w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 f4 e5 fxe5 f6 e3 f5 Bh3 f4 Bf1 f3 Kf2 Qf6 Ke1 Qf4 exf4 Rh7 Ra3 Rh6 Ra1 Rh8 Kf2 Ke7 Kg3 Ke6 b4 Kd5 c4+ Ke4 h4 a5 h6 d5 h7 g5 e6 d3 h5 a4 c5 a3 b6 d4 h6 a2 b5 d2 c6 g4 b7 Bb4 e7 Ra4 e8B Bc3 b6 Nf6 c7 Ra7 Bh5 Nfd7 Ne2 Rd8 h8R Nc6 b8R Ke3 h7 Ra4 b7 Nce5 Qc2 Rf8 Na3 Nc4 Kh2 Rf6 Rg1 Re6 Rb1 a1R Re8 Ra2 h8Q Ra8 Qh6 Ba5 Nc3 Nde5 Na4 Nb2 Qc5 Rc6 Re6 g3+ Kh3 g2 Nc2+ Ke4 Na1 d1B Kh2 Bc2 Bd2 Ra3 Be1 Ke3 Bh4 Bh7 Qg6 Rd3 Qf6 Bd7 c8N Bd8 Ncb6 Bc8 Qg6 Bf6 Qh6 Ra6 Na8 Bh8 Qf6 Rab6 Qg6 Nc4 Rb5 Nb2 Rb4 Bd7 Rg8 Rc7 b8R Bc8 Qf6 Rcc6 Rg5 Rb5 Re8 Rc7 Qa6 Rc6 Rb6 Rc7 Rbe6 Rb8 Reb6 Rc6 R6b5 Rc7 Re6 Rc6 Rh1 g1Q+ Kh3 Qg4+ Kh2 Rc7 Bh3 Rc6 Rb1 Rc7 Bf1 Rc6 Qd6 Rc4 Qc5 Qg3+
B2Bkr1q/2QNn1r1/1P6/1bQBQ1K1/4bQ2/p2nN2q/2pq4/2R1R1RQ w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 a5 Kf3 c5 Kg4 e5 d4 a4 b4 e4 b6 c4 d6 e3 d5 c3 d7+ Ke7 g7 a3 d6+ Kf7 b7 h6 f6 f3 g6+ Ke6 b5 h5+ Kg5 f2 b6 h4 Nf3 e2 Bg2 f1B Nbd2 e1Q Ne5 h3 Ndc4 c2 Ne3 Nc6 b8Q Qf8 d8Q h2 d7 Qa5 f7 Rh3 Qe8+ Nce7 d8Q Qe1 Nd7 Bc4 Qdc7 Nf6 g8R Ng4 g7 Qd2 Re1 h1Q Bf3 Ra7 Ba8 Nf2 Qc5 Rh4 Qbc7 Bb7 Bb2 Rh3 Rc1 Rf3 Bf6 Qh3 Qeb8 Qd8 f8Q Nd3 Qe8 Bbd5 Qf4 Bb7 Qbc7 Be4 Qh5 Bb5 Qe2 Qf1 Qh1 Kf7 Qeh2 Qh3 Qfe5 Nd5 Qhf4 Qf8 Be7+ Ke8 Bd8+ Ne7 Rh8 Qdh2 g8B Qd2 Bgd5 Rb7 Rh4 Qh8 Rg4 Ra7 Qfh2 Rf8 Qhf4 Ra4 Rgg1 Rc4 Qb4 Rc6 Qbc3 Rh6 Q3c6 Rh7 Qc5 Rg7+
K6b/4p2R/bR2p3/1b1R3B/2B1r1q1/B1NPBN1n/4QQ1n/krBN3q w - - 0 1 legal: proof: h4 b5 c4 d5 e4 g5 hxg5 a5 cxd5 a4 e5 a3 e6 fxe6 bxa3 b4 axb4 Ra6 a4 Qd6 a5 Qd8 b5 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 h4 g4 h3 b6 h2 g6 c6 b7 Rh3 a6 Nf6 g5 Qd7 g7 Qe8 g8R Qf7 g6 Rh4 g7 Rh6 a7 Qh5 f5 Qg6 Bc4 Qe8 d3 Ne4 f6 Nf2 f7 Rh8 Ra5 Rh6 Nc3 Bd7 Nf3 Nh3 Qe2 Qc8 Nd1 c5+ Ke4 Nc6 b8B+ Qc7 Ra6 Rh7 Rb6 Rh4+ Ke3 Rf4 Rh8 Rh4 g8N Bg7 Rh5 Bh8 f8Q Bc8 Qf5 Ba6 Nf6 Bb5 Rh7 Rf4 Rg1 h1B Rg5 Rh4 Bb3 c4 Ne4+ Kd7 d6 c3 Qf8 c2 Bc4 Ne5 Nec3 Ng4+ Ke4 Qd8 Rd5 Nh2+ Qf4 Ba6 Bc7 Rc8 a8B Rb8 Ba3 c1Q Bc6+ Kc8 Be8 Qd7 Bf7 Qa4 Bh5 Qa1 Ke3 Kd7 Qg3 Rg4 Qgf2 Bg2 Nb2 Qh1 Nbd1 Rg5 Ke4 Re5+ Kd4 Re4+ Kc5 Rb7 Rc6 Rb1 Rb6 Bb5 Bc1 Qa8 Ba3 Qg8 Bb8 Qg4 Ba7 Kd8 d7 Kc7 d8B+ Kc8 Rbd6 Kb7 Bdb6 Ka6 Rc6 Qf5 Bb8 Qg4 B6a7+ Ka5 Rb6 Ba6 Bf4 Bb5 Bfc1 Ba6 Na2 Ka4 Kc6 Bb5+ Kb7 Ba6+ Ka8 Bb5 Bd2 Ba6 Bb5+ Kb3 Nac3 Kc2 Rc6 Kb3 Bae3 Kc2 Rb6 Kb3 Na4 Ka2 Bdc1+ Ka1 Nac3 Bf6 Ne1 Bh8 Re5 Bf3 Bc4 Rf4+ Bd5 Be4 Nf3 Bg6 Bb3 Re4 Bc4 Be8 Rd5 Beb5
1q3R2/R1p5/QRBk2Nq/R3r1nb/1nRBr1n1/1P3K2/Qp6/BbN4Q w - - 0 1 legal: proof: d4 e5 d5 Ke7 d6+ Kf6 Bd2 a5 Bb4 a4 Nd2 e4 Ba3 Ra5 Ndf3 Be7 dxe7 Ke6 e8N Nh6 Qd4 Na6 Rd1 Ng8 Rd3 Nb8 Rc3 Ra7 Qd1 Ra8 b3 Ra6 Rd3 Rc6 Nd6 Ke7 Bb2 a3 Ba1 Kf8 Nc4 Ra6 Nb2 axb2 a4 Ra8 g4 b5 c4 f5 cxb5 h5 gxh5 f4 e3 Kf7 exf4 Kf8 Ke2 Ke7 h4 d5 f5 g5 b6 d4 b7 e3 f6+ Kd7 f7 g4 f8R g3 a5 g2 h6 Ke7 h7 Qd6 h5 Qg6 h6 Qc6 a6 Nd7 b8R Ra7 Qb1 Kd6 Rh4 Ndf6 Ne5 Qb7 f4 Bd7 f5 Ne4 f6 Ba4 f7 Bb5 Ng6 Bd7 Kf3 e2 Qa2 Ngf6 Rg8 Be6 f8R Bf5 Rd1 Ra8 a7 d3 Rc1 d2 Rh5 d1B Rc4 Qc6 Rb6 Re8 a8Q Ng4 Q8a6 Re6 Ra8 Re5 Rgf8 Rg8 h8Q e1N+ Kf4 Ng5 h7 Rg7 Ne2 g1Q Bg2 Nc2 Ra7 Nb4 Nc1 Rge7 Bh1 Bb1 Bf3 Ke6 Bg2 Qd6 Bc6 Qh1 Kg3 Qd8 Kf4 Qb8 Kg3 Nf7 Rg5 Re4 Ra5 Qh6 Kg2 Kd6 Kg3 Re2 Kf3 Re8 Qg7 R8e7 h8B R7e5 Qh7 R5e4 Bd4 Ng5+ Kg3 Re5 Qh8 R2e4 Kg2 Qg7 Qh1 Qh6 Kg3 Ne3 Kf2 Bh5 Kg3 Ng4 Kg2 Nh3 Kf3 Ng5+
3NB3/Pnp2Nk1/4R2R/Rn1Kp1r1/3Q1bN1/q2Qn3/1NQB1q2/r1N4b w - - 0 1 legal: proof: c4 a5 f4 h5 e4 g5 fxg5 d5 cxd5 f5 exf5 h4 b4 axb4 g3 Qd6 gxh4 Qd7 h5 Qd8 Ke2 Kf7 Kd3 b5 Kd4 b3 a4 b2 h4 e6 h6 b4 g6+ Kf6 h7 b3 h5 Nh6 d6 Qd7 g7 Ng4 g8N+ Kf7 f6 Bh6 a5 Bf8 a6 Ne5 a7 Ng4 h6 Qc6 d7 Nh2 d8Q Qc2 Ra5 Bb7 Na3 b1N Ne2 b2 Nc4 Kg6 f7 Bd6 f8R Bf3 Re8 Kf7 Nf6 Bd5 Ng4 Na3 d3 b1Q Bd2 Na6 Nb2 Qb3 Qc2 Q1a2 Nc1 Bf4 Be2 Rf8 h8Q Nc5 h7 Nf1 Rh6 Bh1 Bf3 Rg8 Bc6 Ne3 Qe5 Rf8 h8N+ Kg8 Nf7 Ng2 Re7 Nb7 Be8 Nb5+ Ke4 Qb4+ d4 Qba3 d5 Rb8 Qed6 e5 Ree6 Kg7 Qdc5 Rh8 Qd4 Rg8 Qd6 Rd8 Qdd3 Rd7 Qdc5 Rd6 Qcd4 Ra6 d6 Qc5 d7 Qaa3 Qg1 Qf2 d8N Rh8 Rh3 Rh5 Kd5 Rg5 Qgd1 Rc6 Rhh6 Rc4 Qh3 Re4 Qhc3 Re1 Qd4 Rg1 Qf3 Rf1 Qfd3 Rd1 Nb3 Ra1 Nc1 Ne3#
2QBn2b/P1b1R3/Q1nQB1q1/3pN3/R1N2r2/1r6/B1Br1p1k/3KB1Nr w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 b4 c5 g4 b5 gxh5 Ba6 d4 axb4 dxc5 b3 Qc2 b4 Qd1 Bb5 cxb5 Ra5 Bg2 Ra3 Bf1 Ra8 a4 Ke7 e4 Ke6 h4 f5 h6 g5 h5 d5 b6 b2 a5 f4 c6 g4 h7 b3 h6 f3 c7 g3 c8Q+ Nd7 b7 g2 b8Q Qf6 a6 Ra7 Qd6+ Kf7 e6+ Kg6 e5 Kf5 e7 Kg4 e8B Kg3 e6+ Qf4 e7 Qe5+ Qe2 f2+ Kd1 Ra8 a7 Rb8 Bf7 Rb4 e8B Rf4 Na3 b1R Nc4 b2 Be6 Ngf6 Ra4 Qe4 Bg6 Ne8 Rh5 Be7 Re5 Bf6 Bgf5 Rf8 h8N Nb8 h7 Kh2 Ng6 Nc6 h8B Rf7 Bg7 Re7 Bh6 Bh8 Bg5 Ra1 Bf6 Ra3 Bd2 Rb3 Be1 b1R+ Kd2 Qf3 Bc2 Qh5 Re3 Ra1 Nge5 Qg6 Bh4 Rc7 Bd8 Re7 Nh3 g1B Re4 Ra2 Kd1 Rh7 Qd3 Rb4 Qa3 Rb3 Bfd3 Rhh4 Bb1 Re2 Ba2 Kg2 Bdb1 Bh2 Bc2 Bg3 Ng1 Rh1 Qab4 Kh2 Qb5 Bh4 Qba6 Be7 Qc5 Bd6 Re3 Bc7 Qd6 Qg4 Rg3 Qf5 Rg7 Qg6 Re7 Rd2+
2R3R1/K1n1PN1N/Q2p2B1/2Q4Q/5nbr/1pBNb1q1/q2bN3/1Rnk3N w - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 g5 g4 e5 fxe5 f5 b4 a5 gxf5 axb4 h3 g4 h4 Ra6 Kf2 Rg6 Ke1 Rg5 hxg5 Be7 Nf3 Bd6 Ng1 Bf8 Kd2 Kf7 Kd3 h5 Kd4 h4 e4 g3 c4 h3 a4 g2 f6 Kg6 a5 b3 f7 b2 c6 b4 a6 b3 c7 h2 a7 Na6 a8N Nh6 e6 Ng8 e5 Kf5 g6 Rh3 e7 Rh8 e8N Qg5 c5 Bd6 f8N Qh5 c6 Qh7 g7 Qg6 e6 Nf6 g8R Bg3 e7 Nh5 Nd2 Kf4 Ne4+ Kf5 Nb6 b1Q Nc4 Nc5 Bd2 Bb7 c8Q Nf6 c7 Nd5 Bd3 Na6 Ne2 Kg4 N8d6 Kf3 Bc3 g1B+ Nf2 Qa2 Nh7 Bf4 Rb1 Qg3 Nb2 Bd2 Bg6 Nf4 Nf7 d6 Kc4 Bd5+ Kb5 Be6 Kb6 Bg4 Nd3 Ke3 Ka7 Kf3 Nf6 Rh4 Nh7 Ke3 Qf5 Kf3 c8Q Nc7+ Qa6 Ke3 Ne4 Kf3+ Qc5 Bge3 Rg1 h1N Rc8 Nf2 Rg2 Qh2 N4g3 Qg1 Nb4 N2d3 Nh1 Nc1 Nd3 Qf2 Qg1 Qg3 Qh2 Rh6 Qh4 Rh5 Qg5 Rh4 Qh5 Qf2 Neg3 Qe1 Bf5 Qf2 Ne4 Ke2 Neg3+ Kd1 Ne2 Bh3 Rgg8 Bg4 Bg6 Qg3
1BRQ2Rr/2pP2K1/N1Nq1Q2/3NpB1n/BN1r4/2n5/2n2Qbq/4Nr1k w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kh5 Ke4 b4 e5 d4 a5 b6 f3 f6 h6 b5 a4 b7 a3 d6 a2 b6 f2 f7 Nc6 f8Q Nce7 b8N Bd7 d5 Be8 b7 Bb5 d7 Bc4 d6 Nc6 g7 Be6 Kg6 h5 Qc2+ Kd5 Na6 h4 b8N h3 Bb5 f1R Nf3 h2 Rg1 h1N Na3 Nf6 g8B Qe8+ Kg7 Re1 d8Q Rf1 g6 Nd4 d7 Ne2 Ne1 Ng4 Qff6 Nc3 Be3 Ng3 Ba7 Ne3 Qcf2 Ke4 Ba4 Bh3 Nc6 Nc2 Be6 Bg2 Bb8 Ra7 Rb1 a1Q Rb6 Qb2 Bf5+ Kd5 Rb4 Qe6 Rg4 Qd6 Rh1 Rf8 Rh8 Rb7 Rg8 Rb4 Rh4 Rd4 Rhh8 Na1 Nac2 Nh5+ Kh7 Re8 g7 Qa2 Bh3 Ke4 N2b4 Nc2 Kh6 Bf3 Bf5+ Kf4 Rf8 Qb2 g8N Qa2 Nge7 Qb2 Qg1 Bg2 Ned5+ Kg3 Qf2+ Kh2 Rhg8 Kh1 Kh7 Re7+ Kg6 Rh7 Re8 Rh6+ Kf7 Nf4 Kg7 Rh8 Qde7 Qa2 Rc8 Qb2 Qd8 Nh5+ Kg6 Qc1 Kf7 Qf4 Kg6 Qh2 Kf7 Nf4 Kg7 Nh5+
N2Q2r1/1BK1nP1B/1b6/Rrp1rrpk/BQR1R3/7r/1Bb5/BQ2q2N w - - 0 1 legal: proof: c4 b5 g4 e5 d4 g5 dxe5 d5 cxd5 f6 a4 Kd7 axb5 Ke8 h3 Nc6 h4 Nce7 h5 Ng6 hxg6 f5 Rh4 fxg4 Rh6 Be6 Rh1 Bc8 Kd2 c5 Kc3 a5 Kc4 h5 e4 h4 b4 a4 f4 g3 f5 a3 b6 h3 Kb5 h2 Kc6 g2 f6 a2 b5 Bd6 b7 Bf5 b8Q Rh7 e6 Bc7 e5 Rh6 d6 Bg4 g7 Rh3 b6 Rg3 b7 Ba5 e7 Kf7 e8R Kg6 d7 Ra7 e6 Bb6 f7 Rd3 e7 Ba5 Nc3 Rd4 Ba6 Kh6 Na4 Rd2 Ne2 g1R Ng3 Rf1 Bb2 Rf5 Qb1 Bc7 Nb6 Rdd5 Na8 Rde5 Rc1 h1R Rc4 Rh3 Nh1 Bb6 Kd6 Kh5 Kc6 Nh6 g8B Bd1 Bh7 Ng8 Kd6 Qc8 d8Q Bc2 Rg4 Rff3 Rc4 Qg4 Kc6 Rff5 Kd7 Qe2 Kc8 Rd5 Qf4 Rfe5 b8B Qe1 Bb7 Ra5 Qd4 Rf5 Be5 Ba7 Kc7 Rb5 Bh8 Rde5 Qc3 Rh2 Qb4 Rh4 Rf8 Rh3 e8B Ne7 Bf6 Rb6 Ba4 Rb5 Re8 Nc6 Re6 Ne7 Qc1 Rd5 Ree4 Rde5 Rb1 a1R Bh8 Raa3 Ra1 Rad3 Qb1 Rd6 Ra2 Rg6 Bf6 Rg8 Ba1 Rd5 Bfb2 Rde5 Bb3 Rf8 Ra5 Rg8 Ba4 Bb6+
2k1N3/Rbn1P3/Rq3bb1/3R3N/3n3r/1q1pQB2/1KB3bp/N1BQ1BB1 w - - 0 1 illegal: No possible last move, all moves rejected
rB2k1nN/q2pPnB1/RnN4b/1p1N4/4N1RQ/1Q4Bn/Rq1N2b1/7K w - - 0 1 legal: proof: f4 b5 d4 e5 fxe5 a5 g4 h5 b4 f5 bxa5 c5 dxc5 f4 Bh3 Ra6 Nd2 Rf6 Nb1 Rf5 gxf5 Rh7 Bg4 hxg4 Kf1 Rh4 Ke1 Rh8 Kf2 g5 Kg2 g3 c4 g4 e4 Na6 a4 Kf7 h4 Nb8 c6 Be7 c7 Bb7 c8Q Bb4 e6+ Kf8 e7+ Kf7 e8N Rh5 a6 Rh8 c5 Qb6 h5 Ne7 a7 Qd6 a8N Qh6 f6 Nec6 a5 Ne5 a6 Nbc6 a7 Bc3 Ra6 Ba1 Nf3 Nb8 c6 Ng6 c7 Bd5 e5 Rf8 e6+ Kg8 f7+ Kh8 Rh4 Bg7 Qd8 Bc4 c8N Nc6 Nd4 f3+ Kh1 f2 Nd2 f1N Nab6 Nge7 a8R Ng8 Ncd6 Qf6 h6 Ne3 h7 Bf1 Qb3 Nd5 N6e4 Bh6 N8d6 Ne5 Nc6 Kg7 h8B+ Kg6 Bg7 g2+ Kg1 Re8 f8B Nf7 Kh2 g1N Kh1 g3 Rg4+ Qg5 Be5 Nh3 Bfg7 Rf8 Ra2 Re8 R8a6 g2+ Kh2 Rf8 Bg3 Re8 Qe7 Ra8 Bcb2 Rc8 Bbe5 Ra8 Na4 Nb6 Nac3 Nc4 Nd5 Nb6 Rh4 Qf6 Rg4+ Kh7 Bef4 Qc3 Qh4 Qb2 Ng5+ Kg6 e7 Rc8 N6e4 Ra8 Bb8 Qc3 Bgd6 Qb2 Kg3 g1Q+ Kf3 Bc4 Bg3 Qgd4 Kg2 Bf1+ Kh1 Qc5 Ncb4 Qc7 Nc6 Qa7 Nh7+ Nfg5 Nf8+ Kf7 Ng6 Ke8 Nh8 Nf7 Rg6 Nd8 Rg5 Nf7 Rg4 Bg2+
5RR1/2b1nn1N/bnKQp1b1/Qn1R1B1R/4r1PR/p6r/4BBN1/4N2k w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 h4 Qd6 g3 Qf6 g4 Qg5 hxg5 Bh6 Ra2 Bg7 Ra1 Bf8 Ke2 Kf7 Kd3 a5 Kd4 h5 Kc5 a4 d4 f3 b4 c6 b6 h4 b5 e6+ d6 h3 d5 h2 f6 Kg6 b7 a3 b6 f2 f7 Rh3 Be2 f1B Nf3 Bh6 d7 Bf8+ d6 Ne7 d8R Ra4 d7 Re4 Ne1 Bg2 Kd6 c5 Nc3 c4 Nd5 c3 Be3 c2 Bf2 c1N Ne3 Nb3 Qd4 Bf1 N3g2 Bg7 Qc5 Nd4 Qa5 Be5+ Kc5 Nb5 Rf8 Bc7 d8R Bd7 Rc1 Bc6 Rd5 Nc8 Rcd1 Bd7 Rf5 Be8 Rdd5 Nd7+ Kc6 Ncd6 b8R Nc8 b7 Ndb6+ Rd7 Kg7 g6 Kh6 g7 Kg6 Rg1 h1N g8B Ng3 Rh5 Nf5 Rh1 Nh6 Bh7+ Kf6 Bf5 Ke5 Bf3 Bc4 Be2 Bd3 Rg8 Bc4 f8N Bg6 Nh7 Nf7 Ra8 Bd3 b8Q Bc4 Nh4 Kf4 Rd5 Bd3 Bg1 Kg3 Nhg2 Nd7 Ba7 Ndb6 Rh4 Kf2 Rh2 Kg1 Rf8 Bd8 Qd6 Bc7 Rh5 Rf3 R2h4 Rh3 Rb8 Kh1 Ra8 Nc3 Rb8 Ba6 Ra8 Nb5 Rg8 Na4 Bf2 Nab6 Qc5 Ncd6 Raf8 Ndc8 Qd6 Ne7+
N2K1rQ1/k1B1NB2/Bp1B2Pr/R1n4Q/2BQ1br1/r6R/1pb5/1n3N1b w - - 0 1 illegal: No possible last move
rB1bK1b1/1kb2P2/3rp3/nB2R3/1R3nN1/Q1R1N1np/RB2Q1b1/4NR2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ba6 g5 Bc8 h5 Qd6 Ne2 Ng8 Ng1 Qg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 Kf2 Kd8 Kf3 a5 Kg4 c5 Kh5 Kc7 b4 c4 d4 c3 d6+ Kb6 d5 c2 f6 f3 d7 a4 d8Q+ Kb7 b6 h6 b5 f2 d6 e6 d7 a3 g7 a2 Kg6 h5 Kf7 h4 g6 h3 Qe7 Rh6 d8R+ Bd7 Nf3 Ra5 Qe2 Ra6 Rc8 Nc6 Ne1 Rh8 Na3 Rh4 Bb2 c1B Nc4 Bh6 Qa3 Nb4 Ne3 Rd4 Rc3 Ne7 g8R Ra8 g7 Nd3 Rh8 Nf5 g8N Bg5 Nh6 Bd6 Nhg4 Rd5 Rh5 Ng3 Rh2 Bh4 Re5 Nf4 Rd1 a1N Rb1 Kb8 b7 Bc7 Kf8 Bc6 f7 Bhd8 Rbc1 Rd7 Ke8 Nb3 Ra1 Na5 Ra2 Bf3 Rh1 Ka7 b8B+ Kb7 b6 Be4 Rg1 Rd3 Rh1 Bh7 Rg1 Ka6 b7 Kb6 Qc2 Rd1 Bb5 f1B Qe2 Bg8 Rh1 Bg2 Rf1 Bd6 Bc7+ Ka7 b8R Rd2 Bd3 Rd1 Rb4 Rd2 Bb5 Kb7 Bb8 B6c7 Nh2 Rd5 Nhg4 Rd6
R1R1NQQ1/pkbrRK1p/1n3Bn1/bP3N2/1rR2R1b/4N3/2B5/2B1r1b1 w - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 cxd5 b5 f4 b4 f5 b3 axb3 Qd6 b4 Qd7 b5 Qd8 h3 g5 f6 Bf5 gxf5 g4 Ra5 g3 Ra1 Qd6 Bg2 Qf4 Bf1 Qg4 hxg4 Bg7 Qb3 Bh6 Qd1 Bf8 Ke2 Kd8 Ke3 Kc8 Kf4 e5+ Kg5 c5 d4 e3 b4 e2 f7 e1B d6 g2 b6 e4 b7+ Kd8 d5 e3 f6 e2 d7 Kc7 d8B+ Kd7 b5 c4 d6 c3 Qd5 c2 Na3 Na6 b8R Bb4 Rc8 e1B Nf3 g1B Nc4 Ne7 Ra4 Ba5 Bd3 Bef2 Ne3 Bb6 Nh4 Bd4 Rac4 Bg3 Nhf5 B1f2 Re1 Bg7 f8R Rg8 f7 Ng6 Bf6 Nc7 Qg2 Ke6 d7 Nd5 d8R Nb6 Rde8+ Kd7 Rf1 Be1 Rf4 Bh8 Kh6 Be5 g5 Bc7 Ree4 Bc3 Rfe8 Rb8 f8Q Rb7 Ra8 Rg7 Rec8 Ba5 Re6 Bh4 Qg4 Ne5 g6 Rg8 g7 Ng6 Bd2 c1R Bc2 Rd1 Bc1 Rd4 Qa3 Rd8 g8N Re8 Qf8 Re4 Be7 Bd4 Bf6 Bc5 Kg7 Rd4 Kf7 Re4 Nd5 Bg1 Nde3 Rd4 Ngh6 Re4 Ng7 Rd4 Nhf5 Re4 Rcc6 Rb4 Ree4 Re5 Ne8 Re6 Rec4 Re4 Re6 Re5 Nf1 Re1 N1e3 Nh8+ Kg7 Bb8 R8c6 Rc7 Qg3 Kc8+ Re7 Kb7 Qg2 Rd7 Rc8+ Nd5 Kg8 Bbc7 Qgg7 Ng6 Kf7 Nb6 Qgh8 Na4 Qhg8 Nb6
7N/RN1BB3/p2nn1qQ/Q3P3/q3r1B1/k1Nr2Bp/2BRq2r/2nRK3 w - - 0 1 illegal: No possible last move, all moves rejected
1B2q3/1r1R1R2/p1BR1N2/2N2P1q/Nr2Q1nN/2prrK2/3r1N1Q/k1B3b1 w - - 0 1 illegal: No possible last move, all moves rejected
N3r1B1/1Q1p1QqN/1K4p1/1N1R1R2/B1R3R1/1QRP2qk/3b2n1/3q1qqn w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 b5 a4 Qc7 g4 Kd8 f6 Bb7 Ba3 Kc8 axb5 Qc6 b6 Na6 b5 Qc7 Bb4 cxb4 f4 Kd8 h4 Ke8 h5 Kf7 h6 Ke6 f5+ Kd6 Rh4 e6 Rh5 Kc5 Rh1 Bd5 Bh3 g6 Bg2 Re8 Bh3 Re7 Bf1 Rg7 f7 Nb8 Nc3 a5 Nb1 Na6 hxg7 Be4 f6 Bf5 gxf5 Qc6 Bh3 Qb7 Bf1 Qc7 Ke2 Kd5 Ke3 Ke5 c4 h5 b7 h4 b8Q h3 b6 h2 b7 b3 c5 a4 c6 a3 Nh3 a2 Rg1 h1Q Bb5 b2 d3 Rh6 Ng5 Bb4 f8N Be1 f7 Rh2 f6 Kf5 Kd4 Qd8 c7 Re2 c8R Ne7 g8B Bd2 Na3 b1Q Rg4 Nd5 Ba4 Nf4 Ngh7 Qe7 Rc3 Nc5 Nb5 Ne4 Qb3 Qbd1 Rac1 a1Q Qe8 Qb1 b8Q Ng3 Qb7 e5+ Kc4 e4 Ne6 e3 f8R Qh4 f7 Ng2 Nec7 Nh1 Na8 Qg3 Kd4 Qf6+ Kc5 Qg7 Kb6 Qf1 R1c2 Qbd1 Qe7 Qg1 Rfc8 Re1 R8c4 e2+ Rcd4 Rf1 Rc4 e1Q R2c3 Rf4 Qe8 Re4 Qe7 Qef1 f8R+ Qf7 Rg5+ Kf4 Rd5 Kg4 Qe8 Qg7 Rff5 Kh3 Qf7 Re3 Rg4 Re8+
qN1kn3/QQr1R3/1pr1B2n/4N1B1/2BP3B/5BqK/1R2rprQ/1N3r2 w - - 0 1 legal: proof: f4 d5 b4 f5 c4 e5 fxe5 a5 cxd5 axb4 g3 Ra6 Qc2 Ra3 Qd1 Ra8 Nf3 g5 Qb3 g4 Qd1 f4 Ng1 f3 h3 Bh6 Rh2 Bf4 gxf4 g3 Rh1 Bg4 hxg4 Qf6 Rh2 Qd6 Rh1 Qd8 e4 c5 d4 h5 a4 c4 d6 b6 d7+ Ke7 a5 g2 Kf2 h4 a6 c3 a7 b3 f5 c2 e6 b2 e5 h3 Kg3 f2 f6+ Kf8 e7+ Kf7 e8B+ Ke6 f7 Ke7 f8N h2 e6 Rh5 g5 Nc6 g6 Rh4 g7 Rb8 a8Q Nb4 Bc4 Na6 Qdf3 Rh6 Qa7 Rh4 Bg5+ Nf6 g8B c1Q Ra2 Rh7 Qfb7 Rc8 Bh5 Rc6 Nf3 g1R+ Kh3 Nc7 Ne5 Rg2 Re1 Qa8 Bf7 Rg7 Bf3 Qf4 Re4 Ne8 d8B+ Kd6 e7 Ng8 Re2 Nh6 Bfe6 Rh7 Nfd7 Rg7 Nd2 b1R Nb8 Re1 Nb1 Rf7 Re3 Re2 Rd2 Nf6 e8Q Rfc7 Qg8 Ne8 Qg7 Nf5 Bh4 Nh6 Qg3 h1R+ Qh2 Rf1 Bdg5 Qf6 Rb2 Ke7 Re4 Kd8 Rf4 Qe7 Rf7 Qf6 Re7 Qf8 Rb5 Qf4 Rb2 Qg3+
1R2nk2/r3rN2/1rq2N2/n6K/1N4QB/1p3Q2/q2npP1N/BBQNRn2 w - - 0 1 legal: proof: e4 d5 b4 a5 c4 axb4 cxd5 f5 exf5 g6 g3 Qd7 Ba3 Qd6 Bc1 Qd8 Bd3 g5 Ba6 g4 Bf1 Bd7 Bc4 Bh6 Bf1 Bf4 gxf4 g3 h3 Bb5 Nc3 Be2 Nb1 Bg4 hxg4 Qd7 Bb2 Qc8 Bc1 Qd8 Ke2 e5 Kf3 b5 a4 h5 d4 c5 f6 c4 a5 c3 f5 g2 d6 h4 d5 c2 f7+ Kf8 g5 h3 Kg4 b3 g6 b2 a6 b4 d7 b3 g7+ Ke7 f8B+ Kf7 a7 e4 d6 h2 f6 e3 Nf3 g1N Be7 Nc6 Nc3 b1R Bb2 c1Q Bd3 Qc2 Qc1 e2 Nd1 Rc8 a8Q Rh7 Qa4 Nh3 Re1 h1N Nh2 Qf8 d8N+ Ke8 Nf7 Ng1 Ra3 Qc3 Ba1 Ng3 Qb4 Nf3 Ra8 Rd8 Rb8 Na5 Qd4 Rb2 Bb1 Nd2 Kg5 Rc2 Qg4 Ra2 Kg6 Ngf1 Kg5 Nh6 g8N Qc6 Kh5 Rc8 Bd8 Qg7 d7+ Kf8 Ne5 Qe7 f7 Qa3 Bh4 Qaa4 d8N Nf5+ Nh6 Qa3 Nd3 Nd6 Nb4 Rg7 Ng8 Ne8 Nf6 Rc7 Qgc4 Rb7 Qg4 Rb6 Qh3 Nb7 Ne4 Qb2 Qg3 Ra7 Qg4 Na5 Bg5 Rg6 Bh4 Kg7 f8Q+ Kh7 Qg1 Rgg7 Qg4 Qa2 Qff3 Kg8 Nf6+ Kf8 Qd7 Qb7 Qdg4 Re7 Nf7 Qc6
2Q1n2k/3n1Q2/2BRN1qB/1Rp1P1b1/2bB3b/QNKN1qq1/q1Qp4/4Q3 w - - 0 1 legal: proof: f4 h5 b4 c5 d4 a5 a4 g5 g4 e5 gxh5 exf4 c4 b5 axb5 a4 d5 Nh6 b6 Rg8 b5 Rg6 b7 Ng8 b6 Rc6 dxc6 Ra5 Qb3 Qc7 Qd1 Rb5 cxb5 Qd8 Kd2 f5 h4 Kf7 e4 Kg7 h6+ Kh8 h5 d5 h7 a3 c7 a2 Qc2 f3 Kc3 f2 Nd2 f4 Ngf3 Kg7 h6+ Kf7 h8N+ Kf6 h7 Qe8 Rh6+ Kg7 Bg2 f1Q Ng6 g4 Ng5 g3 Rb1 f3 Nf4 f2 Rd6 Be6 c8Q Nf6 h8B+ Kg8 Rb3 Nbd7 b8Q Qg1 b7 f1Q b6 a1Q+ Rb2 Ne5 Qa7 Be7 b8Q Qa2 Qa3 Ned7 b7 Bf7 Bh1 g2 Qba8 Bd8 Qab3 Qe6 b8Q Ne8 Qaa3 Qg6 Q8b5 Qh2 Qe2 g1B Qe1 Bf2 Qc4 Be7 Rb5 Bh4 Nb3 Qg3+ Be3 Qe2 e5 Be6 Bg7 Qd1 Bh6 Kh8 Nh7 Beg5 Nf8 Bg4 Qcf1 Be2 N8e6 Bd3 Be4 Bc4 Qf3 Qg8 Qh5 Qdf3 Qf7 d4+ Kd2 d3 Bd4 Qa1 Bc6 Qa2 Kc3 d2+ Nd3 Qg6
3q2r1/q2rB2B/1PRRK1pB/5BB1/2p2qN1/5bk1/Q2r1b2/1q1NQ1NR w - - 0 1 legal: proof: c4 b5 h4 f5 a4 d5 axb5 e5 cxd5 f4 g4 Bb7 h5 Bc8 h6 Nf6 Nf3 Nh5 Ng1 g6 f3 Ng7 hxg7 Nc6 Ra5 Ne7 Ra1 Nf5 gxf5 e4 Qc2 exf3 Qa4 Ba3 Qd1 Bf8 Kf2 Kf7 g8B+ Kf6 e4 Kg5 d4 Kg4 b4 c5 f6 a5 f7 h5 e5 c4 e6 h4 e7 h3 e8N a4 d6 h2 d5 a3 d7 a2 d6 Ra6 b6 Bh6 f8B Bg5 b7 Rh4 b8Q Ra7 b5 Rh6 Bh7 Qe7 d8B Ra8 d7 Ra7 Bd3 Bb7 Nc3 Qf6 Rb1 a1Q Qe1 Qa5 Bfe7 Bh4+ Kf1 f2 Ke2 f1R Nd1 f3+ Ke3 f2 Qa8 Qa4 Bf5+ Kg3 b6 Qg5+ Kd4 Bf3 Ke5 Rc7 Be3 Qa7 Nf6 Rc8 Ng4 Rb8 Bg8 Rh7 Ke6 Rf7 Bh7 Qf4 Bc7 Rg8 d8R Rfg7 Bg5 Rd7 Rc8 Rd2 Bcd8 Qfc7 Bdf6 Qd8 Be7 Rd7 Qd2 Re1 Qb4 f1Q Rc6 Re2 Qe1+ Qf2 Bh6 Ra2 B3g5 Rad2 Qe2 Qd4 Rc1 Qf4 Qe1+ Kg2 Rc3 Bf2 Rd3 Kg3 Rdd6 Qac7 Nh3 Qcb8 Qa2 Qa7 Rf1 h1Q Rg1+ Qg2 Rh1 Qf1 Ng1 Qd3 Rh4 Qb3 Rh1 Qb1
RqR2n2/qB1pN1k1/3N4/1pnbb1Nn/3Q4/P1K1N2B/N3Q2B/3Rb1b1 w - - 0 1 legal: proof: d4 f5 b4 c5 dxc5 a5 e4 axb4 exf5 Nc6 f4 Nb8 g4 Kf7 f6 Ke6 Nd2 Kd5 f7 Kc6 Nb1 Ra5 Qd3 Ra4 Qd1 Ra8 h4 b5 f5 Ra3 f6 Rh3 Qd3 Rf3 Qd1 Rf5 gxf5 Ba6 Be3 Bb7 Bc1 Bc8 Be3 g5 Rh3 h5 Bc1 g4 Rh1 Rh7 Be2 Rg7 Bf1 Rg5 hxg5 Bg7 Ne2 Bh6 Ng1 Bf8 Kd2 Kd5 c4+ Ke5 c6 h4 c7 b3 c5 h3 g6 h2 c6 b2 g7 g3 Nf3+ Ke4 Ng5+ Ke5 Nc3 b1Q Qe2+ Qe4 Bh3 e6 Rd1 Bb7 c8N h1N c7 g2 Nd6 g1B c8B Bc6 Bb7 Be7 f8R Ng3 f7 Qc8 f6 Bd5 a3 Na6 Na2 Qc7 Ra8 Qb8 f8N Nh5 f7 Kf6 Kc3 e5 Bf4 Nc5 Rac1 Qa4 Bh2 e4 Nfe6 e3 Nf4 Qaa7 Ng2 Bf8 Rc2 Ne7 g8N+ Kg7 Rcc1 Ng6 Ne7 Kf6 Rc2 Bg7 f8Q+ Bf7 Qe1 e2 Qh8 Nf8 Ne3 Bd5 Qd2 e1B Rcc1 Bef2 Qe2 Be1+ Kb2 Nce6 Rc8 Nc5 Kc2 Ng3 Qh4 Nh5 Qa4 Bh8 Qh4 Kg7 Qd4+ Kh6 Kb2 Be5 Kc2 Kg7 Kb2 Bef2 Kc3 Be1+
1N3Rb1/Pb3b2/B5n1/2kNb2b/b1rpR2Q/pR6/1QNQrR2/3R2BK w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 e5 d4 cxd4 fxe5 Bg7 Nh3 Bh6 Ng1 Bf8 Rh2 a5 Rh4 Qb6 Rh1 b4 b3 Qb5 axb5 a4 Kd2 a3 Ke1 Na6 Rh5 Nc5 Rh1 Na4 bxa4 Bd6 Kd2 Be7 Ke1 Bf8 Kf2 Ke7 e4 f5 c4 h5 g4 d5 Kg2 h4 g6 b3 b6 b2 e6 Kd6 g7 f4 g5 d3 c5+ Kc6 g6 d2 a5 d4 a6 Nh6 g8Q Nf5 e7 Bg7 e8R Rh7 a7 Bf6 e5 Ba6 g7 Bb5 e6 Ba6 e7 Rh5 b7 Rh6 b8N+ Kc7 c6 Kd6 c7 Rh7 c8R Bb7+ Nf3 Be5 Rh2 h3+ Kh1 Nh4 Rf8 Ng6 Nc3 b1B e8R Ba2 Qh8 Bf7 Rf2 h2 g8Q Rh3 Qc2 d1B Qb2 Ba4 Ba6 Rh6 Rcd8+ Kc5 Nd5 Rh4 Ne1 f3 Rd6 Re4 Nc2 Re2 Qgg7 Bg8 Rb6 Bf7 Rb3 Bg8 Nc6 Rc8 Nb8 Rc6 Qh4 Rc7 Rg2 f2 Be3 f1B Rgf2 Bh3 Rd1 Bg4 Qgf6 Bh5 Qf5 Rc8 Qd3 Rc7 Qd2 Rc6 Kg2 h1B+ Kg1 Be4 Re7 Bf5 Kh1 Bfe6 Ree8 Bef7 Re6 Bd6 Re4 Rc8 Rff4 Be5 Bg1 Kd6 Rff3 Rc4 Rf2 Kc5
3B3k/K1q5/p1B2r2/q5R1/1pB1nBN1/1QR3nN/2BpQ1PQ/2b2Rbr w - - 0 1 illegal: No possible last move
N6R/r5pn/kn6/1N1p1RpB/r1n1P3/2B1R1Qr/Q1Rb1N1K/q1Q1R3 w - - 0 1 illegal: No possible last move, all moves rejected
3N1b2/b1rN3Q/1pQ4p/3R1rPp/1R1q1Bnk/2RbR3/3q4/2NK1BRB w - - 0 1 legal: proof: b4 a5 bxa5 d5 a4 f5 h4 b6 c4 g6 cxd5 f4 h5 gxh5 a6 f3 a7 Bf5 a5 Bc8 a6 Nc6 exf3 Bd7 f4 Na5 f5 Nb7 axb7 Bc8 b8R Kf7 g4 Kf6 d4 e5 f4 c5 d6 h6 d7 e4 d5 e3 g5+ Ke7 d6+ Kf7 f6 Kg6 f7 c4 f5+ Kg7 f6+ Kg6 Nc3 e2 Nf3 Kf5 Qc2+ Kg4 Na2 c3 Ne5+ Kg3 Rh4 Be7 f8Q Ba6 f7 Bb5 Rc8 Rh7 Qe8 Bf8 Rb4 Bg7 f8R Ba6 Bf4+ Kh4 Nc1 Nf6 Rc6 Rc8 a8B Rc7 Qe7 Ng4 Re8 Bd3 Rab1 Qb8 d8N Bf8 d7 Rf7 Rc5 Rf5 Qh7 Qa7 Bh1 Qa1 Qa4 c2 Qc6 Qd4 Rc3 Bg7 Ne6 Bf8 d8R Nf6 Rd5 Ng4 Na2 c1B Nd8 Be3 Nd7 Bg1 Rd1 Bh2 Re3 Bg3+ Kd2 e1Q+ Kc1 Qf2 Rde1 Qh2 Kd1 Qg2 Nc1 Qa2 Be2 Bh2 Rg1 Qb2 Ke1 Qd2+ Kf1 Qa2 Ke1 Rc8 Bd6 Qb2 Kd1 Bg3 Be7 Bb8 Bd6 Rc7 Bf4 Ba7 Bf1 Qd2+
7Q/5B1r/1pQqrp1K/2Bq2RB/1N6/1Q3n1p/Bq1kBPnN/N5bR w - - 0 1 legal: proof: d4 c5 b4 a5 bxc5 g5 h4 e5 dxe5 b6 c6 a4 hxg5 Ra5 c7 Rd5 a3 Ba6 c8Q Rd3 Qxa6 Rh3 Qa8 Rxa3 Kd2 Ke7 g4 Ke6 c4 d5 e4 h5 c5 d4 g6 d3 Ke3 h4 Kf4 h3 c6 d2 c7 Qh4 c8Q+ Nd7 g7 Nf6 g8N Rh5 Qac6+ Bd6 Nf3 Rh7 Nh2 Rg7 Be2 Rh7 Ne7 Ne8 Nd5 Rh6 Qb3 d1Q Nb4+ Qd5 Be3 Nf6 Qh8 Qh5 g5 Qg6 Bc5 Ng4 Nd2 Ne3 Rag1 Ng2+ Kg4 Qf6 g6 Ra2 g7 a3 g8B Rg6+ Kh5 Rg7 Qba4 Rc2 Qab5 a2 Nb3 a1Q Qc4 Qb1 Na1 Qb2 Qb3 Qe7 Kh6 Qf8 Bh7 f6 Bg6 Rc3 Bgh5 Re3 Bf7+ Ke7 e6 Ne5 Bfh5 Nf3 e5 Qd8 Bd4 Bc7 Bc5+ Q8d6 Bf7 Re4 Bg8 Kd8 e7+ Kc8 Qb5 Kb7 e8B Ka7 e6 Re3 e7 Re6 Nd3 Kb7 Qd7 Ka6 Bh5 Ka5 e8B Bb8 Qc8 Bc7 Bef7 Bb8 Qa3+ Kb5 Qc7 Kc4 Qc6 Bc7 Qaa4+ Kc3 Nb4 Kd2 Qb3 Qe7 Rc1 Be5 Rc4 Qed6 Rg4 Bg3 Rg5 Bf4 Bh7 Bg3 Bb1 Bf4 Ng4 Bh2 Ba2 Bg1 Nh2 Rh7+
3n4/3k2pp/BQ1q3R/N1qr4/RbRB1N1r/1bq5/NB2pKNP/2Q3N1 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 f5 e4 e5 a4 d5 axb5 Nc6 g3 Nce7 fxe5 f4 g4 Nf5 gxf5 dxe4 d4 a5 c4 e3 e6 a4 c6 f3 c7 a3 d5 a2 c5 Qe7 d6 Nh6 c6 Qd7 e7 Rb8 f6 Nf5 b6 Nh6 b7 Rg8 Ba6 e2 Bb2 Nf7 Kf2 Nh6 Qc1 Qe6 d7+ Kf7 e8R Ba3 d8B Qd6 Re6 Qf8 Nc3 Bd7 c8Q Qb4 c7 Ra8 b8N Qd6 Qb7 Re8 c8N Qe5 Nb6 Qd6 Nbd5 Bb4 Qb6 Ba4 Nf4 Bb3 Ng2 Ra7 Bc7 Rd8 Nc6 Kf8 Bb8 Nf7 Na5 Rdd7 Bc7 Nd8 f7 Rb7 Rg6 Ke7 f8N Rb8 Rf6 Rc8 Bb8 Rc4 Ba7 Rh4 Rh6 Ke8 Ne6 Qc5+ Ne3 Rd5 Nf4 Qd6 Neg2 Kd7 Qce3 Qc5 Rc1 a1Q Na2 Qd6 Rc4 Qc1 Qd2 Qc3 Qc1 Rd4 Qb8 Rd5 Bd4 Qc5 Qb6 Qd6 Ngh3 Qc5 Rd1 Qd6 Ng1 Qc5 Kg3 f2+ Rd3 f1Q Rf3 Qd1 Kf2 Ba3 Ra4 Bb4 Rg3 Qcc2 Rc3 Qcd3 Rc4 Qc3 Qb1 Qdd3 Qa1 Qg6 Qc1 Qgd6
1b1Nn1B1/p1Q3R1/prR1nPR1/2BR1B2/1qR5/3qp2b/N6Q/Kn3k1N w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 f4 Bh6 a4 Bf8 a5 Nb8 a6 bxa6 fxg5 Bb7 h4 Bc8 g4 Bd7 h5 Kf7 g6+ Ke8 g5 Nc6 g7 Rb8 Ra5 Bc8 Ra1 Rb6 Ke2 Na5 Ke1 Rg6 hxg6 Nc6 d4 Kd7 Kd2 Kd6 Kc3 e5 b4 h5 Kb2 h4 f6 h3 b5 h2 b6 e4 b7 e3 b8Q Rh4 Ra4 Qd7 Bd3 Rh6 Bf5 Rh7 Ka1 Rh4 Ne2 Qe7 Nbc3 Nh6 g8R Nf7 g7 Ncd8 g6 Ne6 Ng3 Qd7 Rf1 h1Q Qc2 Qe4 Rc4 Rh2 Qa2 Rb2 Nh1 Rb6 Qh2+ Qf4 Qb7 c5 Ba3 Qb5 Rc1 Qd7 Rb4 c4 Na2 c3 Rc2 Qb5 Rc4+ Qb4 Rc1 c2 Qb8+ Nc7 Qb7 Nd8 Qb8 Ne6 Rc6+ Kd7 d6 Qe4 d5 Qd3 Rc4 Ne8 Qb7+ Kd8 d7 Bd6 Qc6 Bb8 Qcd6 Qe1 Bc5 Qh4 Qde5 Qf4 Qc3 Kc7 d6+ Kc6 d8N+ Kb5 d7 Qh4 Qce5 Qe1 Qc7 Qb4 Rg1 c1N Rh8 Qd5 g8B Qd3 g7 Ne2 Rg6 Nc3 Rhh4 Nb1 Rhd4 Bb7 Rd6 Bg2 Rc6 Bh3 Nb7 Ka4 d8R Kb3 Rd5 Qb5 Ra4 Qb4 Nd8 Kc4 Bh7 Rb5 g8R Rb7 R8g7 Rb6 Nc1 Kc3 Bg8 Kc4 Qg1 Kc3 Na2+ Kd2 Qg2+ Ke1 Qgh2 Qbb3 Rh4 Qb4 Rc4 Kf1
2rn3K/2k2p1B/5R1R/b2nnQ2/1B2P3/1Qb2p2/1Q1Bp3/bRQNrQ1N w - - 0 1 illegal: No proof kernel
N2r4/1q1BQ1p1/B1QNKB1B/7b/3Rprqb/1p6/1RP1B2k/R3Qbr1 w - - 0 1 legal: proof: d4 a5 g4 d5 f4 h5 gxh5 c5 e4 e5 dxc5 d4 Ba6 Ne7 Bf1 Nd5 exd5 e4 b3 Nc6 b4 Ne5 fxe5 axb4 Ke2 Ke7 h4 b5 a4 f5 c6 b3 e6 Kd6 c7 Ke5 a5 b4 e7 f4 e8B b2 h6 b3 a6 Rg8 d6 Bh3 c8B Bg2 a7 Qg5 h7 Bh3 h8R Qh6 h5 Qf6 d7 Bf5 d8B Bg4+ Nf3+ Kd6 h6 Be6 h7 Be7 Nbd2 b1R Nh4 Ke5 Qe1 Ba3 Ba6 Qf7 Nc4+ Kd5 Nf5 Bf8 Nb6+ Ke5 Bd7 Be7 Nd6 f3+ Kf2 d3 Kg3 f2 Bh6 d2 Bfe2 Bd5 Kg4 d1Q Rf1 Rc8 a8Q Bh4 Qc6 Rf8 Na8 Rc1 Rg1 f1B Ra2 Qe7 Rb2 Bf7 Rg8 Be8 h8Q Qf7 Be7 Rd8 Qh7 Qfd5 Qg6 Rf3 Qf7 Qb5 Rf8 Qb7 Rh8 Bg3 Bh4 Rf4+ Kg5 Rb1 Qf8 Bh5 Qe7+ Kd4 Rf8 Ke3 Rf5 Rc1 Rd5 Ra1 Rd4 Rb1 Qd2+ Kf2 Rh1 Kg2 Qe1 Bf3 Rg1+ Kh2 Kg6 Bg4 Bf6 Bh4 Kf7 Bh5+ Ke6 Rc1 Bed3 Qf3 Be2 Qg4+ Nf5 Qg3 Q1b4 Bg2 Nd6 Rb1 Rf1 Re1 Rf2 Rh1 Rf1 Rg1 Ra1 Bf1 Qe1 Qg4+
3q1qk1/2RpB3/R1P5/pQB4R/r5Bn/QN1qn1r1/R2Nr1p1/1N2K1R1 w - - 0 1 legal: proof: d4 b5 e4 c5 f4 cxd4 a4 f5 exf5 Nh6 axb5 Ba6 f6 Bc8 g3 Ng8 h3 g6 f5 Bh6 Ra2 Bb7 Ra1 Bf4 gxf4 Bc8 Be2 g5 Ra5 g4 Bc4 g3 Bf1 Bb7 Ra2 Bf3 Ra1 Bg4 hxg4 Kf8 Rh2 Kf7 Rh1 Ke8 c4 Kf8 b4 e5 g5 a5 c5 h5 f7 e4 g6 e3 c6 e2 b6 d3 b5 h4 b7 h3 b6 h2 g7+ Ke7 f8N Kf7 f6 Ra7 f5 Na6 b8R Rb7 Qb3+ Ke8 f7+ Ke7 f6+ Kd6 Ra2 Rh5 Ra8 Rg5 Ne6 Nb4 f8Q+ Ne7 g8R Nd5 f7 Ne3 Nd4 g2 Qb5 Rg3 Rg5 Rb8 Nb3 Ke6 b7 N7f5 Ba3 Nh4 Rh5 Kf6 Qd6+ Kg7 f8B+ Kg8 Be7 Rc8 b8R d2+ Kf2 e1R Bc5 d1Q Be2 Qf8+ Nf3 Qd3 Rg1 h1Q Ra6 Rc1 Rb7 Rc4 Rc7 Ra4 Ke1 Qh3 Qf4 Qhf5 Qe5 Qd8 Nfd2 Qff8 Bg4 Rb8 Qb4 Rb6 Qa3 Rb7 Na1 Rb2 Nab3 Rc2 Qe4 Rb2 Qeb4 Rc2 Qb5 Rb2 Ne4 Rf2 Ned2 Re2+
rr3KR1/1nR2P2/1q1Qp1N1/4N3/2RppB2/2RQpQ2/2n1b2n/kBR1N3 w - - 0 1 illegal: Other
BN3Nb1/p1B1n1N1/3n2Qr/4RRq1/1kp1pNQ1/2bpN1Q1/2KP2n1/6R1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 h5 g4 f5 exf5 Ba6 gxh5 Bc8 c4 Bh6 f4 gxf4 b4 Nf6 b6 Nc6 b5 Nb8 c5 Ng8 c6 Bf8 Bg2 Na6 Bh3 Rb8 Bf1 Rb7 cxb7 Nb8 h4 c5 f6 e5 h6 d5 f7+ Kd7 h5 Kd6 h7 d4 h6 f3 Ra5 c4 Nh3 Kc5 Ba3+ Kd5 Nc3+ Ke6 Bd6 Nd7 b8Q Ba6 b7 Nc5 b6 Bg7 f8N+ Kf7 Rg1 Bb5 Nd5 Na4 Ne6 Ne7 Ne3 Qe8 Bc7 Qg8 Bg2 Be8 Nhf4 Bf8 Ng7 f2+ Ke2 Bd7 Qe8+ Kf6 b8Q f1N b7 Nc3+ Ke1 Ne4 Qg4 Nd6 Kd1 Be6 Kc2 Bf7 Bd5 e4 Rb5 Be6 Qeg6+ Ke5 Ra5 Qf7 Rc5 Qf6 Rb5 Qg5 Rc5 Rg8 h8R Bf7 h7 Be6 Ne8 Rg7 Rb5 Bg8 Ra5 Rf7 Ng7 Rf6 Rb5 Nh2 Rc5 Nf3 Ra5 Nh4 Rb5 Bf7 Rg8 Ng2 h8N Nf5 Rf1 Be7 Re8 Bg8 Rg1 Re6 Qd8 Rf6 b8N Re6 Qd7 Bd8 Qg3 Ne7 Ba5 Rf6 Qdg4 Bb6 Bc6+ Bc5 Bd5 Bb4 Bc7 Bc3 Ba8+ Bd5 Rbb1 Bg8 Rbf1 Re6 Q6h5 Rh6 Nhg6+ Kf6 Nf8 Ke5 Bd8 Nf5 Qf7 Kd6 Qg6+ Kc5 Bc7 Kb4 Rf2 Nd6 Rf3 Nef5 Re5 Ne7 Nfh5 Qf6 Rff5 Qg5 Nf4 d3+
N1Rb1k2/3r2q1/B1Qp1rRq/5n1p/2Q2Q2/p1P5/bQ1N2pQ/B2B2RK w - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f7 Kd6 h4 Qb6 f5 Kc7 g5 Kd8 Be2 Na6 Bf1 Nc5 Be2 Ne4 Bf1 Qf6 gxf6 g5 Ra2 g4 Ra1 Ng5 hxg5 Bb7 Qd2 Ba6 Qd1 Bc8 Kf2 a5 Kg2 e5 b4 h5 g6 e4 b6 a4 c3 d3 b7 e3 b8Q d2 b5 e2 g7 e1Q b6 a3 b7 Qe4+ Nf3 Ra4 Qb3 d1Q Nd2 Rc4 Rg1 Rc5 Qc4 Qe5 Bb2 Qa4 Ng5 Qc7 Kh1 Ne7 g8B Qca5 Qh2 d6 b8Q Q4b5 Ne6+ Kd7 Nc7 Rh6 Na8 Bg7 f8R Bh8 f7 Rc7 f6 Qa7 Re1 g3 Re6 Bg7 Ba1 Qg5 Qb2 Nf5 Bh7 Ba6 Rc8 Bf8 Be2 Be7 f8Q Bd8 f7 Rf6 Bd1 Qh6 Qh8 Qd4 f8Q Qg4 Qhg8 Qgg7 Qc5 Bc4 Qcb6 Ne7 Bd3 Ba2 Ba6 Nf5 Qc5 Qgh7 Qg4 Q7g7 Qgc4 Ra7 Re4 Rb7 Rg4 Rc7 Rg6 Rb7 Qfg8 Ke7 Qf4 Rd7 Qgc4 Kf8 Qc6 g2+
1B6/1BnQ2NB/1pP5/q1p1R3/1R1p2p1/r2bQqBB/1r1K3Q/k1b1N1N1 w - - 0 1 illegal: No possible last move, all moves rejected
r7/4RBNB/Q2R2R1/Q1pq4/1r1Bpp2/1KnBbk1P/NB4pq/Q6r w - - 0 1 legal: proof: e4 h5 g4 e5 gxh5 Ke7 d4 Kd6 b4 b6 c4 Qf6 c5+ Ke7 c6 Kd6 cxd7 Qd8 d5 Bb7 b5 Kc5 d6 Bd5 f3 Nc6 exd5 e4 f4 Ne5 fxe5 a6 Qb3 axb5 Qd1 b4 Kd2 Kd4 Kc2+ Kc5 a4 f5 e6 g5 h3 c6 a5 b5 h6 f4 a6 g4 e7 g3 e8B Qb6 d8Q Bg7 a7 Be5 h7 Qa5 d7 Bc3 d6 Ne7 Nf3 Qa3 Bf7 Nf5 Bd3 Rc8 a8B Ne7 Rg1 Qa5 Bb2 Bd4 Kb3 Be3 Nd4 Nd5 Qf6 Nc3 Nf5 Rc7 Bb7 Ra8 Ng7 Rcc8 Qh6 Kd4 h8B Rc7 d8Q g2 d7 Rcc8 Rf1 Rc7 Rf3 Rcc8 Rg3 Qa2+ Kc2 Qd5 Qa5 Rc7 d8R Rcc8 Ba3 b3+ Kb2 Rc7 Bc8 b4 Bf5 Rcc8 Rd6 Rc7 Rgg6 Rcc8 Qd2 Rc7 Kc1 b2+ Kc2 Rcc8 Qe1 Rc7 Nd2 b1R Bb2 Rd1 Nb1 Rcc8 Qe2 Rh1 Qe1 Rc7 Qb5 Rcc8 Ra7 Rc7 Qa5 Rcc8 Bc1 b3+ Kb2 Rc7 Ka3 Rcc8 Re7 b2 Kb4 c5+ Ka3 Rcb8 Qf1 Rb4 Qg1 Na2 Nc3 b1Q Bb2 Rc4 Kb3 Qe1 Qf1 Qg3 Qa1 Qh2 Rgf6 Bd2 Bh7 Ke3 Rfe6 Kf3 Rg6 Nb4 Na2 Be3 Nc1 Na2 Bd4 Nc3 Na2 Qc6 Qg5 Rf8 Qf6 Qd5 Qe6 Re8 Qc8 Rf8 Qca6 Ra8 Bf6 Bf2 Nh5 Na4 Bb2 Nc3 Bd4 Be3 Ng7 Rb4+
1Bq5/3Rpq2/Q2Rp1B1/KN2q1Qb/Brp1B2n/3N2p1/1N2P2B/1k2nQ2 w - - 0 1 legal: proof: c4 a5 h4 g5 g4 f5 gxf5 b5 f4 g4 b4 Bg7 bxa5 Na6 f6 Nb8 f5 Bh6 Qb3 Bg5 hxg5 Ra6 Qe3 Rd6 Qe6 Rd5 cxd5 dxe6 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 c6 a4 h4 g6 h3 g7 h2 f7 Ba6 f8N Nd7 f6 Qb8 f7 Qe8 Nd2 Rh6 Bg2 Qb8 Nc4+ Kc7 d6+ Kb7 d5 Rh8 Nb2 Qc8 Be4 Qb8 Ng6 Rh6 f8Q Rh5 Nf3 Ne5 d7 Nc4 d8Q Qa7 d6 Qe3 d7 Qf2 Nd4 Ne3 Rd1 h1Q Nf4 Rh4 Nfd3 Qhh2 Bg6 Ng2 Bf4 Ne1 Bb8 Nh6 g8Q Nf5 Qgg7 Qe5 Qc8+ Ka8 d8B g3 Bb6 Bb7 a6 c5+ Ka5 b4 a7 b3 Nb5 Bf3 Qa6 Bh5 Qgf6 Rc4 Qg5 Nh4 Rd2 Rf4 Rad1 Rb4 Qff5 c4 Qh3 Qff4 Bg1 Qf7 Qf1 Bg4 Bh2 Bh5 Qd6 Kb7 a8B+ Kc8 Qa6+ Kd7 Bae4 Qg8 Bef5 Qc8 Qa7+ Kc6 Qa6+ Kd5 Be8 Qf4 Bfg6+ Qf5 Nf4+ Ke4 Rd7 Ke3 R1d6 Qf7 Nfd3+ Qf4 Kb6 Kd2 a5 Kc2 Qb7 Qf6 a6 Qf4 a7 Kb1 a8B Qe4 Ka5 Qe5 Nd1 b2 Qa6 Kc2 Bb7 b1Q N1b2 Qc1 Bc6 Kb1 Bge4 Qcc3 B8g6 Qg7 Nc7 Qcd4 Ba4 Qf7 Nb5 Qe5
1Brq2R1/p1Q2B2/1B1rq2r/2b5/1kNp4/4R2P/QpK2Nnp/1R1RR1Q1 w - - 0 1 illegal: No proof kernel
2rB1n2/nBQ1RR2/q2qp1N1/2B1K2p/Qq2P2B/1Q1N2Bp/rp2k3/N7 w - - 0 1 legal: proof: c4 a5 b4 g5 bxa5 b5 h4 gxh4 a3 d5 cxd5 Ra6 Qa4 Ra7 Qd1 Ra8 g4 b4 f3 b3 g5 Bg4 fxg4 Bg7 Bb2 Bc3 Bc1 Bb4 axb4 Ra6 Na3 Ra7 Nb1 Ra8 Kf2 Kd7 Ke3 Kd6 Ke4 c5 d4 h5 g6 c4 a6 c3 g5 c2 a7 e6 b5 f6 g7 h3 g6 b2 b6 Rh7 b7 Ne7 g8Q Nc8 g7 Qe8 Bg2 Qf7 Be3 c1Q Qb3 Qe1 Nf3 Qg1 Ne5 Qh2 Na3 Qf8 Qf7 Qg3 g8N Qh6 Ne7 Rg7 N7g6 Qe1 Rf1 Qg5 Nd3 Qc1 Nc2 Nc6 Ra6 Qd1 Na1 Rb8 a8Q Ne7 Ra7 Rc8 Bg1 Qgd2 b8B+ Rc7 Rb7 Qb4 Qaa4 f5+ Kf4 Rg8 e3 Rc8 Be4 Kd7 d6 Qdd2 d5 Qd1 Qa6 Na7 Ke5 f4 Qa5 f3 Qaa4+ Kd8 d7 f2 Bh1 Rc5 Bd6 Ra5 Bc5 Ra6 Bh2 Qdd2 Bg3 Qd1 Rb5 Kc7 d8B+ Kd7 d6 Qdd2 Re1 f1Q Bb7 Qd1 e4 Ra5 Ba6 Kc6 d7 Qfe2 Rf1 Qdd2 Qc2 Qdd1 Qab3 Ra2 Qg7 Qdd2 Rf7 Qdd1 Rb8 Qef1 Bb7+ Kb5 Ra8 Qd2 Qd1 Qh2 Qa4+ Kc4 Qh7 Kc3 Qdb3+ Kd2 Rb8 Ke2 Ra8 Nd5 Bh4 Nf6 Qg7 Nh7 d8B Nf8 Re7 Nb5 Ra6 Na7 Rc6 Qc1 Rcc7 Qcc4 Rf7 Qa6 Rce7 Qh1 Qh6 Qhe1 Qc1 Qed2 Qcc3 Qbb6 Qca5 Qbb4 Qc7 Qd1 Nf2 Qd7 Nd3 Qdd6+
b1k1b3/5p2/3Q1Bp1/1Rq4p/1NQQN1b1/n2Pn1p1/B4RQR/2K1Q1bB w - - 0 1 illegal: Other
6B1/QR1pb1Pr/3p2b1/B1pQ1QRB/1pN1n3/1n1R3p/2Br2N1/K4Bk1 w - - 0 1 legal: proof: c4 b5 e4 a5 b4 g5 bxa5 f5 exf5 g4 d4 b4 d5 g3 d6 exd6 hxg3 Qg5 g4 Qh4 g5 Qd4 Qc2 Qb6 Qd1 Qb5 cxb5 Ra7 Qd3 Ra6 Qd1 Ra8 Kd2 Ke7 Kc2 h5 Kb2 c5 f4 h4 a4 h3 g4 Bh6 g6 Kf6 g7 Bg5 a6 Rh7 a5 Ra7 b6 Bb7 Na3 Bd5 b7 Rh5 Ne2 Rh4 Nc4 Rh7 Ra3 Ra8 a7 Ne7 g8B Rf7 a6 Nc8 Rg1 Rg7 Rd3 Ne7 Ka1 Nbc6 b8R Na5 Rb7 Rf8 a8B Rgf7 a7 Bh4 g5+ Kg7 g6 Kh6 g7 Kh5 f6 Bc6 f5 Rc8 Bg5 Rff8 f7 Bf2 f6 Rfd8 f8Q Nd5 f7 Re8 Bd8 Nf6 Nf4+ Kh4 Rg5 Re2 Qe8 Rd2 f8Q Ne4 Qf5 Be1 Qee5 Bd5 Qa4 Bf7 Qd5 Bg6 Qa2 Nc6 Ba5 Nd4 Rb6 Rf8 Bb7 Bf2 a8B Rb8 Bc6 Re8 Rb7 Nb3+ Kb1 Bd4 Ba4 Bf6 Qa1 Be7 Qa3 Nd4 Bc2 Rc8 Ka1 Re8 Be6 Rh8 Bg8 Rh6 Bc7 Rh8 Qa7 Rh7 Ba5 Nf3 Rh5+ Kg3 Rg5+ Kh2 Ng2 Kg1 Rb8 Nd4 Bc6 Bf8 Rb7 Be7 B6a4 Nf6 Bd1 Ne4 Bac2 Bd8 Bf3 Be7 Bh5 Nb3+
B3B3/kp1Np1Qn/Bp1bRb2/3QQp2/rRK5/1n3RB1/2b1p1P1/2B3N1 w - - 0 1 illegal: Other
2Nr1n2/2BQq3/2BPq2k/2b2Q1N/5RRN/B3R2q/1rKbNn1r/1b3N1n w - - 0 1 illegal: No possible last move
1q6/N1RP1qr1/b3b1nN/R2B3K/4QqrB/RN1nB2k/1b4rn/2R1QR2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 h5 g4 e5 d4 a5 b4 c5 b6 c4 g5 h3 g6 h4 Kg4 a4 f4 c3 d6 e4 d5 c2 g7 a3 b5 h2 b7 h3 b6 e3 f6 e2 f7 e1R f5 a2 f6 Re7 Qe1 Re5 Nc3 Ra4+ Bc4 Nc6 b8R Nd4 b7 Re7 Nge2 Nf3 Be3 c1N Nb5 Nd3 Ned4 Rh7 Rf1 h1B Nb3 h2 Rc1 a1Q Ra8 Qe5 b8R Ba6 Rc8 Rb4 Rc5 Qb8 Na7 Re6 Rc8 Ne7 g8N Ng6 Nh6 Bg7 f8R Qf4+ Kh5 Ra4 f7 Bb2 Rh8 Rg7 f8Q Bg2 Qf6 h1Q+ Qfh4 Bh3 Rhf8 Qhh2 Rf5 Qf2 Rc6 Nh2 Rc7+ Ke8 Rg5 Re4 d7+ Ke7 d6+ Kf6 Qg4 Ra2 Bd5 Rb4 Qf3 Be6 Rg3 Ke5 d8B Qf7 d7 Rg4 Qfe2 Q2f3 Bh4 Q3f4 Ng8 Kf5 Qc2 Ba1 Qc4 Rg2 Nh6+ Ke5 Qcb4 Bb2 Qe4+ Kd6 Qe2 Bb7 Bb6 Qf2 Qe1 Nb4 Nc6 Q2f3 Ra2 Ba6 Na1 Q3f6 Rgc3 Nd3 Na7 Qf2 Be3 Q2f6 Qc4 Ke5 Ra5 Qf3 Rca3 Qf2 Bd4+ Kf4 Nb3 Qf3 Bhf6 Qf2 Be3+ Kg3 Bh4+ Kh3 Qe4 Q2f4
RBb5/Q1n1N2Q/QK2R3/R2Q4/1kB1bBn1/1rn3rb/1P3r2/NQb2bq1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 Kd6 d4 f5 e4 c5 g6 a5 e5+ Ke7 g7 h5 e6 Kd6 b6 a4 e7 h4 e8R f3 Ke3 h3 b7 h2 g5 f2 g6 a3 Nd2 a2 Nb3 c4 Re6+ Kc7 d6+ Kc6 d5+ Kb5 Kd4 f4 d7 f3 d6 Nf6 g8Q Na6 b8B Ng4 g7 Qg5 d8Q Kb4 d7 c3 Ne2 c2 Qh7 Rg8 Nc3 Nc7 Bc4 f1B Bf4 c1N Qf6 f2 d8Q Ra3 Qd5 Bh3 Qa8 f1B Qa7 Bd6 Qdd3 Rf8 g8Q Rf7 Rg1 h1B Qb1 Be4 Qgd8 Bf8 Qd5 Bh6 Rg2 Ne3 Re2 Qg1 Ra6 Rg7 Ra5 Rg3 Qfc6 Ng4+ Re3 Nd3 Qca6 Ndf2 Re1 Beg2 Re6 Be4 Nd1 Bg5 Ne3 Bh6 Nf5 Nd1+ Be3 Nc3 Ne7 Nf2 Bf4 Bg5 Ke5 Ng4+ Kd6 Bh6 Be5 Bc1 Kc6 Rf3 Bf4 Rf2 Qc2 Nd1 Kb6 Nc3 Rb1 a1R Qcd1 R1a2 Na1 Rb3 Q1d3 Bd2 Rd1 Bc1 Qb1 Ra4 Rd3 Raa3 Rg3 Nh6 Rg8 Ng4 Qd2 Bd7 Qd1 Ne2 Qd5 Rg3 Rh8 Nc3 Rd8 N7b5 Bbc7 Rb3 Ra8 Bc8 Bb8 Nc7
1r4N1/2rk4/1r2nnn1/n1P1b3/1N2qQ2/Q3RQKn/1R2NB1Q/1B1b1QBb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 g5 Kf2 e5 c4 e4 h6 g4 h5 a4 h7 d3 f6 d4 b6 e3+ Kg3 d2 b5 e2 h6 e1N f7+ Kd7 f5 a3 b7 a2 f6 d3 b6 Nc2 Rh2 Ne3 Nc3 Nd5 Qf3 d1N Be3 d2 Bf2 Qe8 Bd3 Kd6 Nge2 Ra6 Ne4+ Kd7 Bb1 Nc6 b8Q Bb7 Qbf4 Bd6 f8Q Nd4 f7 Be5 Q8a3 Nb2 f8Q d1B c5 Nc4 Bg1 Ba8 b7 Na5 Rf2 Ne6 b8N+ Kc7 Qf7+ Nde7 Nf6 Rb6 Na6+ Kc8 Rg2 Ng6 Nb4 Bb7 Qf1 Be4 Rf2 Bh1 Rf3 Qc6 Re3 Qe4 Qf3 N8e7 Qf1 Nd5 Ng8 Nf6 Qf8+ Kd7 Qa8 Qc2 Qaf3 Qa4 Ne7 Rg8 h8B Rgb8 h7 Qc2 Ng8 Qe4 Kh2 g3+ Kh3 g2 Kg3 Rb5 Bg7 R5b7 h8Q Rc7 Bf2 g1N Qh2 Ng4 Bf6 Nh3 Bh4 Nf6 Bg1 Qd5 Bf5 Qe4 Rb1 a1R Rb2 Qd4 Bb1 Qe4 Qb3 Ra3 Qa2 Rb3 Qa3 Nd5 Kg4 Rb6 Bhf2 Nf6+ Kg3 Rb8 Nc2 R3b5 Nb4 R5b6
B3R1NQ/R1b1r2P/Qrbn3b/1R5b/K5qN/n5bk/2R1QB1B/1r2R1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 c5 b4 f5 d4 g5 Kd2 a5 Kc3 c4 e5 g4 d6 Ke6 b6 f3 b5 g3 d7 f2 h6 a4 h5 g2 h7 f4 d5+ Kf5 b7 a3 h6 f3 b6 Kg4 d6 a2 Kb4 c3 e6 c2 e7 Ra6 e8R Nf6 Be3 c1B Qe2 Ne4 Nc3 Qh4 d8Q Bd7 Nd5 Bc6 Qc8+ Nd7 b8B Qg5 b7 Rb6+ Ka5 Qg8 Bd4 Bf4 Ne7 Bg3 Bc7 Qe6 b8R Ne5 d7 Nd6 d8R Qf5 Rc1 a1B Qca6 Rg8 h8Q Rg7 Ng8 Re7 h7 Bh6 Rd7 Qe4 Qab5 Nec4+ Ka4 Na3 Rc2 Bc3 Rb7 Bcd2 Ra7 Bdf4 Rh5 Qg6 Re5 Qg5 Rdd8 Kh4 Rb8 Qg4 Rbb7 Be4 Qa6 Bc6+ Rb5 Be5 Nh3 g1N Bg2 f1R Nf4 Rb1 Bf2 Nc8 Bb8 Bc7 Bh1 Nd6 Bg2 Qe6 Ng6+ Kg4 Bh1 Kh3 Nh4 Qc8 Bc5 f2 Bd5 f1B Bf2 Bd8 Rd7 Bc7 Bh1 Nf7 Rd1 Nd6 Re1 Qf5 Bd5 Bg2 Be4 Bf3 Bd5 Bh5 Bf3 Bd7 Ba8 Bc6 Qd1 Bgf4 Ng6 Nf7 Ree2 Bd8 Nh4 Qg4 Re1 Bh2+ Bf4 Nd6 Qd2 Bc7 Qe2 Ne4 Bd2 Bhe5 Bf4 Bed6 Bh2 Bg3 Bc5 Nd6+ Bd4 Qg7 Bf2 Qg4+
2kBN1q1/B2q1Bqq/R4RQ1/r2b2Nq/3Q1B1n/4KBN1/1Rn1P3/1r2b1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 h5 d4 f5 b4 a5 b6 c5 d6 f3 b5 c4 b7 h4 d5 a4 b6 f4 g6 h3 g5 c3 g7 c2 g6 a3 Nc3 a2 Qe1 h2 Nh3 Nh6 g8N Nf5 g7 Nc6 b8B Nh4 b7 Nd4 Ng5 Ra5 Bg2 Rh7 Rf1 h1Q Bd2 c1Q Ba7 Qb1 b8R Bb7 Nce4 Nc2 Ng3 Bc6 Rb5 Kc8 Nf6 Qd7 g8B Rg7 Ne8 Rg6 Qc1 Bg7 Rb7 Bc3 Rb2 Qhh3 Be6 Qg4 Bf7 Qh5 Qd1 Rg7 Bc1 Rg8 Qd3 Be1+ Kg1 Bb7 Qg6 f2+ Kh1 f3 Bf4 Qd1 Kh2 Qe7 Bh1 Qf8 Kh3 Qh7 Kg4 Rg7 Bg2 Qfg8 d7+ Kd8 Rh1 f1R Rh2 f2 Bf3 Rg1 Rg2 f1Q Rf2 Qg2 Rf1 Qh2 Rf2 Ke7 d8B+ Kd7 d6 Bd5 Rf1 Kc8 Rf2 Ng2 Kf5 Q2h5 Rf1 Bb3+ Ke4 Nh4 d7+ Kb7 Rc1 a1Q Rcb1 Qd6 Rd1 Qc7 Rd6 Qc8 Ra6 Rh1 Bdb6 Bd5+ Kd3 Qc7 d8Q Qd7 Qf6 Rg1 Bd8+ Kc8 Qd4 Rh1 Qf5 Rg6 Qfe4 Rb6 Qg6 Rg1 Rf2 Na3 Ke3 Rb8 Ra2 Rb1 Rb2 Nc2+ Kd3 Bb7 Rbb6 Ra4 Bg4 Rb2 Bfc7 Bd2 Qd5 Raa2 Rf5 Rd1 Bf3 Rbb1 Bf4 Qag7 Rff6 Ra5 Qd4 Bd5 Rb3 Rg1 Rb2 Bb3 Ke4 Be1 Kd3 Bc4+ Ke4 Bd5+ Kd3 Na1 Ke3 Nc2+
bQ1K1b2/1B1BR1n1/qB1qb1nn/4R2N/2k1B1Nr/5PB1/2r2RbQ/1b1N4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 c4 e5 b4 h5 g4 a5 f6 Ke6 f7 a4 b6 h4 b7 a3 g6 a2 g7 h3 b5 h2 b6 Ra6 g5 Qe7 g6 Qe8 c5 Bd7 c6 Bd6 f8R Qf7 c7 Qe7 c8B Rh4 Ne2 Nh6 g8N Nc6 b8B Nd8 b7 Rc6 g7 Rc2 Nbc3 Bb4 Rf5 Qd6 Ng3 Ba3 Rg1 h1B Qh5 Bg2 Be3 Bb4 Rb1 a1Q Re1 Qa8 Nf6 Qaa6+ Nb5 Ba3 Qe2 Bb4 Ngh5 Bc5 Ng4 Bb4 Qd2 e4+ Ke2 Ba3 f3 d3+ Kf2 d4 Nc3 Bb4 Qe2 d2 Nd1 d3 Bb6 Ba3 Rf7 Kd5 Ke3 Kc4 g8B Bc6 Re7+ Ne6 Bh7 Ng7 Bd7 Bb4 B8c7 Ba3 b8Q Ba8 Re5 Bc5+ Kf4 e3 Qf2 e2 Kg5 Ba3 Be4 Bb4 Nc3 d1B Qg3 d2 Qh2 Qd5 Kf6 Bf8 Re7 Qd3 Bg3 Qd6+ Re6 Rb2 Rh1 Bc2 Nd1 Bb1 Bb7 Rc2 Rg1 Bh1 Bh3 Bg2 Rgf1 Qa4 Rf2 Qa6 Nc3 d1B Bdc6 Rb2 Be4 Bb3 Nd1 Rd2 Qd8 Rc2 Qb8 Qc5 Re5 Qb4 Rg1 e1N Re7 Nd3 Re1 Ne5 Ree2 Ne8+ Ke6 Ng6 Kd7 Ng7 Kd8 Qab5 Ngf6 Q5a5 Bd7 Qd6 Ng4 Qa1 Bf5 Qa6 R2e5 Kb4 Bd3 Be6 Bde4 Kc4
BB3K2/R1r1n2b/1BBQ1r2/1Bbr1nbN/3RN3/3rP3/1k1q3r/R2Q2Nq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 b4 h5 g4 a5 b6 f5 g6 a4 b7 h4 g7 h3 d6 a3 d7 a2 Ke6 f3 Kf7 f2 g5 h2 g6 f4 d5 f3 b5 Bd6 b6 Ra5 Nc3 Bf4 d6 Nc6 b8Q Nd4 b7 Nf5 Ne4 Bg5 Be3 Nge7 g8B Rh4 Bg2 f1R g7 f2 Bh7 Kb4 g8B c4 Bb6 Ka3 e3 c3 Qc7 c2 b8B c1R Qc6 Qc7 d8R Rd5 d7 Qd6 Kf8 Kb2 Bg6 Ba6 Be8 Bd3 Bh7 Qb4 Qd6 Qd2 Bhg6 Rcc5 Bh5 Re1 Bhf3 f1R Be2 Bb1 Bb5 Rc7 Bc6 Rf3 Ba8 Re2 Bf1 Ref2 Bb5 Rh7 Rc8 Rc3 d8N Rcd3 Bec6 Bc2 Rc7 Rg2 Rc1 a1B Ne6 Rgf2 Ng7 Rfh3 Nf3 R3h4 Rg1 h1Q Ra7 Rhh2 Nh5 Nh6 Rg3 Ng6+ Ke8 Rc3 Rg1 Rc7 Rg4 Kb3 Ng1 Rf6 Neg3 Ne7 Qe2 Bh7 Rf1 Bb2 Rfa1 Rcd3 Rd4 Ba3 Ne4 Kb2 Qg4 Nhf5 Qd1 Rg6 Kf7 Bc5 Kf8 Rf6+
3b2n1/RB2k2N/4qbKr/3Q2R1/rr4B1/BN1PnB1b/Nr3Q2/rB3Qq1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 f5 b4 a5 g4 c5 e4 h4 e5 c4 e6 c3 d3 h3 g6 a4 e7 a3 g5 h2 g7 c2 g6 a2 b6 Rh7 b7 Ra7 b5 Qc7 d6 Rh5 b6 Rh6 Nd2 Bd7 Bh3 Ra6 Qf1 Nc6 b8N Ra3 b7 Rh4 Na6 Nh6 b8Q+ Qd8 g8B Ra5 g7 Qc8 Qb2 Ra4 Bg4 Nb4 Bd5 Ng8 Bb7 Nd5 Nh3 Ne3 Rg1 h1R Nb3 Qc4 Qf6 Qe6 Ba3 c1R Ng5 Rb1 Nh7 Rb2 Nb4 Rh6 Qd4 R1h4 Qa7 Bc8 d7+ Kf7 e8B+ Ke7 Bh3 Rg4 Bh5 Rh4 Rg5 Rg4 Rc1 a1B Na2+ Rb4 Rc5 Rh4 B3g4 Ra4 Rc2+ Rb4 Kf2 f3 Kg3 f2 Rc7 f4+ Kf3 Rd2 Qb6 Bf6 Qd4 Rb2 Qa7 Kd6 d8Q+ Bd7 Qda8 Bc8 Rf7 B8e7 Qb6+ Kd7 Qaa5 Ke8 Qd5 Bd8 Qbd4 Be5 Ke4 f3 Qe1 Bd7 Qf1 Bef6+ Kf4 Ne7 g8B Ra4 Qe1 f1R Qe2 Ra1 Qf1 Nc4 Qe3 f2 Qb6 Rh1 Bf3 Rh4+ Bhg4 Bc8 Qg1 f1Q Qbf2 Qg2 Qgf1 Qg1 Rfg7 Qa6 Be6 Ng8 Kf5 Qc6 Ba6 Qb6 Ra7 Rb4 Bb7 Ke7 Bd1 Qe3 Bgf3 Rd4 Bc2 Qe2 Bb1 Bd7 Qe4 Ne3+ Kf4 Nf5 Nc5 Ra4 Nb3+ Rdb4 Qc4 Nd4 Qd5 Nc2+ Kf5 Rh3 Kg6 Qe4+ Bf5 Ne3 Bh5 Qe5 Be4 Bg4 Bf3 Qe6 Qd1 Rh4 Qdf1 Bh3 Bhg4 Rh6#
1R6/1nQ2q2/1Q1nB3/r5bR/bPQbBBR1/N5r1/2bNBB1n/1qk1Kb2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 b4 Kd6 g4 f5 e4 c5 b6 a5 b7 h5 g6 a4 g5 a3 g7 h4 g6 f3 Be2 c4 Kd2 f2 Qe1 f1N+ Kd1 a2 Qf2 h3 Ke1 c3 Bb5 c2 Bg5 c1B Qg3+ f4 Na3 h2 Be2 Bd7 Nf3 Nf6 g8B Bg7 Nd2 Qe8 Be6 Nc6 b8R Ra5 Bh4 Nd8 e5+ Ke7 Qg1 f3 Bf2 Rg8 Rb1 Bh8 g7 a1Q Rb2 Qf7 d6+ Ke8 d5 Qb1 Rc2 Ba4 d7+ Ke7 Rc4 Nb7 Rg4 Ne8 Qg3 Ned6 d8B+ Ke8 Bdb6+ Ke7 Bbe3 Bc2 Bf4 Ba4 Rg1 h1B Rg2 Bc2 Rh2 Bg2 Rh5 Nh2 Bd7 Bh1 e6 Kf6 e7 Bg2 e8B Bf1 Bd1 Bb5 Be6 Bba4 Bb5 Nf5 Bd3 Nfd6 Ndc4 Be3 Be4 Bd4 Nd2 Be3 Bh6 Bf4 Bg5+ Ke5 Qg1 Be3 Bf4+ Kd4 Qg3 Kc3 Qg1 Nb5 d6 Kb2 d7 Kc1 d8Q N5d6 Be2 Bd4 Qb6 Bf6 Qg3 Bg5 Qh4 Rd8 g8Q Bd4 Qh3 Rc8 Qf1 Rc3 Qc8 Rb3 Qcc7 Rc3 Bd1 Rb3 Qfc4 Rc3 B2g3 f2+ Ke2 f1B+ Ke1 Bgf6 Be2 Bg5 Bf2 Rg3
4Qn2/Q2N2b1/1bBb3k/1b1N1b2/KP1B1R1n/1r3rn1/1Rq2qB1/1R1BN2B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 Kd2 Kg6 Kc3 c5 Kb3 h5 g4 a5 e5 h4 d6 c4+ Ka4 c3 b4 c2 b6 f3 d7 f2 e6 h3 b7 f4 e7 f3 e8B+ Kh7 g6+ Kg7 g5 h2 d5 Ra7 d6 Rh6 Bg2 f1N Nc3 f2 Rb1 Ne7 Rb2 Qc7 d8R Ng3 d7 f1B Be3 c1B Nd5 Nef5 Nf3 Rh3 Ne1 Nh4 Qb3 Bd6 Qa2 Ra8 Bg1 Bcf4 Bd4+ Bfe5 Rg1 h1Q Qa3 Bd3 Rf1 Bf6 Rf4 Qh2 Bh1 Qf2 Bg2 Nc6 b8N Ne5 Bh1 Bca6 Rc8 Bf5 d8Q Be2 Bc6 Nd7 Qe8 Nf8 Nd7 Rb8 Rb1 Rb5 Rb2 Rc5 Rd8 Rc3 Qa2 Rf3 Ra8 Kg8 g7 Kh7 g6+ Kh6 g8B Bd8 g7 Qc8 Bf7 Bb6 g8B Rb3 Bh5 Bed3 Bb5 Qcc2 Bd1 Bf1 Rc8 B1d3 Rc4 Bf1 Bc6 B1d3 Kb5 a4 Be6 a3 Ka4 Be2 Qa1 a2 Bg8 Qd3 Rc1 Qc2 Bf7 Ba6 Bfh5 Be2 B5f3 Ba6 Bfg2 Bc4 Qb1 a1B Qa2 Ba6 Rbb1 Bc3 Rb2 Bf1 Rcb1 B1d3 Be3 Bg7 Qa3 Nf1 Bd4 Rf3 Qa1 Ng3 Qa3 Bde4 Kb5 Qcd2 Qa7 Qc2 Ka4 Bd3 Qab8 Bc4 Qa7 Bb5+
QN4R1/2B2Nb1/3Rb3/r1kn2B1/P1qb3b/2Q2Br1/QqBKq2b/3RB2n w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 f4 Kd7 a4 Kd6 h4 c5 d4 g5 f6 b5 f5 e5 a6 b4 a7 g3 f7 c4 h5 c3 h6 c2 f6 b3 h7 e4 Nd2 e3 Ne4+ Kd7 d6 Kc6 d7 b2 d5+ Kb6 d6 b1Q Rh6 e2 Qd5 g2 Qa2 g4 Nh3 g1B Kd2 g3 Nhg5 g2 Nc5 Qe7 d8R Nc6 d7 Nd4 Na6 Bh2 Nb8 Bg7 f8Q g1B f7+ Kc5 Rd6 Qb5 Bg2 Qe8 Bf3 Ne7 Be4 Rg8 h8Q Ndf5 Qh3 Nd5 Qc3+ Qc4 Rb1 Qe7 Re8 Bf6 d8B Be6 Bc7 Rg7 Qh8 Rg8 f8B Bg7 Nf7 B1d4 Red8 Qe8 Be7 Ng3 Bh4 Nh1 Be1 Bge5 Ra1 Rg3 Bg6 Qe7 Rg8 Bg7 Nc6 Rb8 a8B Rb5 Nb8 Ra5 Bd3 Ne3 Bf3 Nd5 Bb2 Qe8 Rc1 Qb5 Rd1 c1B+ Kc2 Bce3 Bc1 Bf2 Kd2 Qb2+ Bc2 Rg1 Qh6 Bh4 Qf6 Rg5 Qd8 Rg3 Qc8 Rh3 Qb7 Rg3 Qa8 Bh3 Bf2 Qb7 Ke1 Be6 Bg5 Qb5 Kd2 e1Q+ Kc1 Qf1 Kd2 Qb2 Be1 Qe2+
qk1N1B1N/1nRr2NN/3q3n/B1R1Qr1P/2BQRb2/1r6/4r3/K2b1nNr w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kd7 f4 e5 d4 a5 Kd2 g5 Kc2 c5 b4 Kc7 Kb2 g3 h5 g4 f6 c4 f5 a4 d6+ Kb7 d7 e4 b6 g2 b5 g3 f7 e3 d5 e2 d6 e1N f6 Nc6 Nd2 Nf3 Ne4 Ra7 Qd4 Nh6 Rh4 Nd2 Ng5 Kb8 b7 Na5 Ne6 a3+ Ka2 c3 Bc4 c2 Ng7 Be7 f8N Nf1 f7 Bg5 Re4 Bf4 Bd2 c1R Nh7 Rc3 f8B Rb3 Rc1 Qe7 d8N Bg4 d7 Qd6 Be1 Bd1 Ka1 a2 Nf7 Rg8 d8N Rh8 Be7 Re8 Bf8 Re5 Nh8 Rf5 Ne2 g1R Rc2 Rg2 Ng1 Kc7 b8R Re2 Rb7+ Kc8 b6 g2 Rf7 Kb8 Rc7 Rb7 Rc5 Re7 b7 Rd7 Nf3 g1R Rc3 Rh1 Ng1 Ka7 Bd2 Kb6 b8Q+ Nb7 Qc7+ Ka7 Qa5+ Kb8 Rc7 Rb6 Qae5 Rb2 Rc2 Rb3 Ba5 Rb5 Bf7 Be3 Bb4 Qe6 R2c5 Qd6 Bc4 Bf4 Bd2 Bb3 Kb2 Bd1+ Kc3 Rb2 Be1 a1Q Bd2 Rc2+ Kb3 Qa8 Ba5 Bd2 Ka3 Rc3+ Kb2 Rb3+ Ka1 Bf4
n2n2b1/B4rkB/1bq2qN1/R2RNQPb/1Q2b2K/1q1N1b2/6r1/1B1BB2Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 g4 h5 d4 a5 b4 f5 e4 Kf7 d6 f3 Kg3 c4 e5 f4+ Kh4 a4 d5 f2 d7 f3 b6 a3 b7 c3 e6+ Kg7 b5 c2 e7 a2 e8B Kh7 d6 Qf6 d8Q Ra4 b6 Qg7 d7 Nc6 b8Q Ra7 b7 Bc5 Nh3 Qf7 g6+ Kg7 g5 Bb6 Na3 Nf6 Bd2 c1Q Nc4 Nd5 Nb2 Nc7 Nf4 Qb3 Be1 Na8 Be2 f1B Nbd3 f2 Bg4 Be2 Qf6+ Kg8 d8B f1B g7 Bf3 Ng6 Be6 Qf5 B1e2 Be7 Rh6 Bc5 Nd8 Rh2 Kh7 g8B+ Kg7 Bh7 Bg8 Bc6 Qcc3 Be4 Qcc4 Bg1 Qc6 Qb1 Bd1 Rd2 Bde2 Qbf4 Bd1 b8N Rf7 Nd7 Bde2 Kh3 h4 N7e5 Rh5 Qh2 Bd1 Qh1 Bde2 Kh2 h3 Kg3 h2 Qb2 Bd1 Qc3 Rh6 Qb4 Rh4 Bh5 Rg4+ Kh3 Rg2 Kh4 Ba5 Ba7 Bb6 Rc1 a1Q Rc5 Qab2 Rd5 Q2c3 Ra2 Qf6 Raa5 Qcc6 Nb2 Bde2 Bb1 Be4 Nbd3 Bd1 Bg4 Bdf3 Bh3 Bh5 Bg4 Bf3 Qg1 Be4 Bd1 h1B Qh2 Rd2 Qhh3 B1f3 Qh1 Rg2
4rq2/1r3N2/2rN1R2/4Pb1n/4n1RN/qNQKq1b1/3QQ1qk/R2NBq1B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 Ke2 Ke5 b4 f5 d4+ Kd6 b6 a5 h6 c5 h7 g5 h5 c4 b5 a4 b7 g4 b6 g3 h6 g2 Bd2 c3 Nf3 g1Q Be1 a3 Rh4 a2 Rg4 c2 Bg2 c1Q Nh4 f3+ Kd3 f4 Qe2 f2 Nc3 f1R Bh1 f3 Nd1 Nd7 b8R f2 b7 Ra4 Ra8 Ngf6 b8N Be7 Nc6 Ra6 Na5 Re8 h8N Rc6 h7 Qg2 Ra6 Nh5 Nb3 Ndf6 Rb6 Bf5 Nf7+ Kd7 h8Q Bd6 Qg7 Bg3 d6 Ke6 d7 Rg1 Ra6 f1Q Nd6 Qa3 d5+ Ke5 Qh8 Qe7 d8Q Qf8 Qa5 Qc5 Qd2 Qc1 Rb1 a1Q Rb6 Qaa3 Ra1 Rc7 Qg7 Rb7 Qc7 Qcc5 Qc8 Qcf2 Qcc3+ Qd4+ Kc2 Qh2 Nb5 Qfh3 d6 Bd7 Qcd3 Bc8 d7 Bf4 d8N Bf5 Bg3 Qe3 Nf2 Re1 Kc3 Qf1 Rd6 Rb1 Nd1 Qhg2 Be1 Bh2 Kc4 Rc1+ Q3c2 Nd7 Rdg6 Nc5 Nd6 Bf4 Rf6 Bh2 Rg5 Kf4 e5 Ne4 Rg3 Ra7 N8f7 Rb7 Rf3+ Kg4 Rf4+ Kh3 Rg4 Bf4 Rgg6 Kh2 Rg4 Qef2 Kd3 Bg3 Qb2 Rc6 Qbc3 Qe3+
R4Q2/bkqQqb1P/2b5/Rq2r1B1/r1Bb4/3QbB2/1R1n1R2/1NN2RKn w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 a5 b4 c5 d4 Kc7 h4 f5 e5 g5 b6+ Kb7 d6 c4 b5 a4 h6 c3 d7 c2 h7 f3 d5 f4 d6 g4 h5 a3 h6 g3+ Ke1 f2+ Ke2 a2 e6 g2 e7 Nc6 e8B Na5 Qd3 Ne7 Bh5 f3+ Ke3 Qc7 d8Q Nb3 d7 Bg7 Qf8 Nd2 d8Q Bd7 Ne2 Bc6 Q8d7 g1B Rh2 Rg8 h8R Ra4 h7 Be5 Rh1 Rg5 Rg8 Rf5 Rg2 Bg7 Ba3 Bh8 Nc1 Rc5 Be2 f1B+ Rf2 Bh3 Bb2 Be6 Bf6 Bf7 Bg5 Bg7 Bg4 Bc3 Be6 Bh8 Bc4 Re5+ Kf4 Bg7 Kg3 Nf5+ Kh3 Ng3 Bd1 Bh2 Rhf1 Nh1 Be2 Bf4 Bd1 Be3 Kh2 Bf6 Kg1 Bd8 Qe6 Qe7 Qed7+ Kb8 b7 Ba7 Nb3 c1Q Be2 Qc3 Nc1 Qa5 Bd1 Qc7 Be2 Be3 Bd1 Ka7 Be2 Kb6 b8R+ Ka7 Ra8+ Kb7 Ra5 Ba7 Na3 Be3 Rb1 a1B b6 Bad4 Rb2 Qe6 Bd1 Be7 Nb1 Bec5 Be2 Qe7 Rab5 Ka6 b7 Ba7 b8R Bdb6 Ra8 Kb7 Kh2 Bd4 Ra5 Be3 Rg2 f2 Bf3 Bd4 Rfg1 f1Q Rf2 Qe2 Rf1 Be3 Kg1 Bd4 Qe4 Qd3 Qe2 Qb3 Qd3 Qb5 Bg4 Be3 Bf3 Bbd4
R3QQ2/4B1P1/1k1q1RN1/b1b3n1/Q2N1rr1/K2Qq2r/b3Q1NR/rBr1n3 w - - 0 1 illegal: No possible last move
Q1B2K2/1b2b3/N3R1R1/r1RNnNQq/1n1qQR2/2b1R2r/4qB1P/k1r1q3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 a5 b4 g5 d4+ Ke4 f4 e5+ d6 g3 b6 c6 b5 a4 f6 g4 f5 g2 b7 g3 f7 a3 f6 a2 d5 Rh6 b6 Bf5 Ne2 g1Q+ Qd4+ Kf3 Nbc3 g2 Ng3 e4 Ba6 e3 Qe4+ Kf2 Rb1 Ke1 Rb5 e2+ Be3 a1R Bf2+ Kd2 Ra5 Bg6 Nf5 Qf1 Rg1 Ne7 d7 Kc1 Kd6 Kb2 Rc5 Qe8 d8Q Nd7 b8N e1Q Bc8 Qfe2 b7 Rc1 Na6 Rh3 b8R+ Ka1 Rb6 Ne5 Ke6 Bh5 d6 Bf3 d7 Nd5+ Qe7 Ra7 d8R Nb4 Nd5 Bg7 f8R Qh5 f7 Ra8 Rcb5 c5 Rde8 c4 Rc5 c3 Qg5 c2 Ke7 Bh8 Re6 Bg7 Rf1 g1Q Rg8 Bf6+ Kf8 Be7+ Kg7 Bh1 f8Q Ra7 Nb8 Ra5 Na6 Ng6 Kf7 Qgg4 Rg7 Ne5+ Kg8 Qf4 Rgg6 Qfd2 Kg7 Qd4 Qg8 Rd1 Qf8 c1B Qh8 Bb2 Kg8 Bf6 Kf8 Bc3 Qh7 Rf3 Qa7 Ra2 Qee3 Bd8 Nf6 Qh7 Rec6 Ra4 Bg3 Ng4 Qa8 Qh5 Qef4 Ra5 Re3 Rc1 Rce6 Ne5 Bh4 Rh3 Qfg4 Bc6 Qe4 Qhg4 Rf4 Bb7 Bf2 Qh5 Nd5 Be7+
1QN3b1/q1r1N2Q/3BQQR1/b3r3/nNnrn2B/5qnK/BQR3P1/4k2q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 Kf2 Kd6 d4 e5 b4 h5 b6 c5 b5 a5 b7 a4 b6 e4 f6 c4 f5 a3 f7 h3 Kg3 a2 f6 h2 Qd3 c3 Nd2 e3 Nh3 c2 Nf4 e2 Ng6 e1R Ne7 Bg4 Qh7 Re5 Bc4 Na6 Ba3+ Nc5 Rhc1 Rc8 b8Q+ Rc7 b7 h1Q Rab1 a1Q Ba2 Qe8 Rb6+ Qc6 Qc8 Be6 b8Q Bh6 f8Q Bg7 f7 Nf6 Qcb7 Bh6 Qfg7 Rd8 f8Q Bg8 Qg4 Be3 Qh3 Ne4+ Kh4 Bh6 Ra6 Bf4 Qb2 Bh2 Qhb3 Rd7 Kh3 h4 Rd1 c1N Qf6+ Re6 Bb4 Nd3 Rc1 Ne5 Rc2 Nc4 Qe3 Rd8 Qeh6 Kd7 d6 Re5 d5 Na4 Qh6g6 Qag1 Qgf7 Qa7 Q7e6+ Ke8 Kg4 h3 Rb6 Bg3 Ra6 h2 Kh3 Be1 Bc5 Na3 Nc4 Ba5 Nb6 Nc4 Nbc8 Qca8 Qfh4 Qc6 d7+ Kf8 d6 Qcb7 Bf2 Qb3+ Bg3 Qf3 Q7h5 Kg7 Qf4 Rf8 d8N Rf6 Qfh4 Rf4 d7 Rg4 Ndc6 Rf4 d8B Rg4 Qd5 Rf4 Q4g4+ Kf6 Qgd7 Rg4 Qh8+ Kg5 Nb4 Qhf1 Qa3 h1N Qe8 Rf5 Nec6+ Nf6 Qdd7 Rd4 Qb2 Qb1 Be7 Qg1 Bc5 Re5 Qdh7 Ne4 Qef7 Qe1 N6e7 Qed1 Re6 Qb1 Bd6 Qa1 Kh2 Kg4 Bh4 Qc1 Qfg6+ Kf4 Qgf7+ Ke3 Rg6 Nhg3 Qhf6 Qb1 Kh3 Qc1 Qb1 Qe1 Q7e6 Qg1 Rc3+ Ke2 Qb2+ Ke1 Rc2 Qh1#
1n2qbN1/Nr1Rq3/2Rn3r/n1B1K2N/Q4NB1/bR3N2/3qb1P1/QQ1b1k2 w - - 0 1 illegal: No possible last move, all moves rejected
1b1BK1b1/2BR3N/nqb1Qq2/2nr3R/4r1Rq/3R3P/NNRn3Q/1k4nB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 e4 g5 d6 f5 h3 c5 d5 f3 b6 f2 b7 c4 h6 g4 d7 c3 Ke6 f4 Kf7 c2 e5 Kb3 d6 g3 h7 a4 e6 a3 e7 f3 e8N g2 Bf4 a2 Na3 Qa5 d8B Nd7 b8Q+ Bb7 Qd5+ Ka4 b4 c1Q b5 Qc5 b6 Qcb4 Rh2 Ngf6 Rd1 a1Q Nc4 Kb3 Ne2 Ka2 Nc1+ Kb1 Rd3 g1N Qe6 Bc6 b7 Ne4 Nb2 Ndc5 d7 Qab6 Na2 Ra5 Bfc7 Bd6 Bg2 f1B Bh1 f2 Nf6 Re8 h8R Na6 Rh5 Nec5 Nh7 Qh4 Rg2 Be2 Rg8 f1N Rg4 Re7+ Kf8 Rg7+ Ke8 Nd2 Qa8 Rg5 b8R Re5 Rc8 Re4 Qb8 Bf3 Bg5 Bd5 d8R Be5 Rd7 Bg3 Qe7 Bg8 Qe6 Bg2 Bgd8 Bf4 Nc4 Qaf6 Nb2 Ncb3 Be5 Rd5 Rc2 Nbc5 Qbd6 Bg5 Bh2 Bf3 Qg3 Bf4 Qf2 Bb8 Bhc7 Be2 Qh2 Bf1 Rb3 Bb5 Rd3 Bc6
QBkb3K/r2n1B2/4R3/qR1r3R/Q1b2Q2/q1P2nN1/N1Nrb2b/Q3Qq2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 Kd3 Kd7 b4 g5 h4 e5 f4 a5 h6 g4 h5 g3 f6 g2 b6 a4 b7 a3 f7 a2 h7 Na6 b8R Bb7 f5 Bg7 f8N+ Kc7 h6 Bc8 f6 Qd6 f7 Qc5 b5 Bh3 Nc3 Qe7 Nge2 g1B Bf4 Ra7 Ng3 Qa3 Qe1 Be6 Rh5 Ne7 Rc1 Rg8 h8Q a1Q h7 Nf5 Be2 Qa5 Na2 Bh2 c3 Nh4 b6+ Kd6 b7 Kc7 Re8 Bf6 Rb1 Bd8 Rb5 Nf3 Bf1 Rg5 b8Q+ Kc6 Qa8+ Kc7 Qf6 Nb8 h8Q Nd7 Bg2 Rf5 Qh4 Qc1 Qh7 Qca3 Qa1 Rg5 Qe4 Rf5 Qee1 Rg5 Ke2 d3+ Ke3 d4+ Ke4 Bc4 Re6 d2 Bh3 d1R Bf5 d3 Bg6 Rg4 Kf5 d2 Nh7 Bb3 f8Q Bc4 Bf7 Rg6 Nf6 Rg5+ Ke4 Rf5 Ng4 Rg5 Ne3 Rf5 Qd5 Kc8 Nc2 Rg5 Qb4 Rf5 Qa4 Rg5 Ke3 e4 Bb8 Re5 Kf4 e3 Kg4 e2 Qa8 Rd5 Qf6 Nb6 Qf4 Nd7 Qf2 e1Q Qe2 Nfe5+ Kf5 Nf3+ Kg6 Qf1 Kg7 Rb1 Ra6 d1B Qe1 Bde2 Re6 Rbd1 Kh8 R1d2
NnQ2b1N/1KRb2N1/B4Qq1/b2nB3/7q/2Prr1B1/1Q1rrRN1/2n2N1k w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 h4 d5 f4 g5 c3 g4 f6 d3 f7 g3 b6 a4 f5 g2 f6 d4 b5 d2 b7 d3 b6 a3 h6 a2 h7 Ra6 h5 Bg7 f8Q e5 f7 Nd7+ Kc6 Qg5 b8B Bf6 h6 Be7 Qc2 d1R Nf3 g1B Bf4 Ngf6 Rh2 Nd5 Rf2 Rd2 Ne1 Qg6+ Bd6 Re2 Qb2 d2 Ng2 d1R Bg3 Rdd2 Qd8 Ra7 b7 Re8 b8N Bf8 h8Q Ra4 h7 Rad4 Qhf6 R4d3 Na6 Nb8+ Kc5 Bg4 h8N Bd7 Nc7 Re6 Na8 Bh2 Na3 Ree3 Rd1 a1N Nc2 Ree2 Nce3 Nb3+ Kc4 Nc1 Kc5 Na2 Ra1 Nc1 Ra7 Re7 Qc8 Re8 Bh4 Bf4 Rc7 Bg5 Qg7 Bd8 Bg3 Re6 Rc6 Ba5 Qf6 Bh6 f8N Re7 Ne6 Bf8 Nf5 Ree3 Neg7 Re6 Re2 Kf3 Rc7 e4 Be5 Rd1 Rc2 R1d2 Be2+ Kf2 Ng3+ Kg1 Nf1 Kh1 Bg3 Rd4 Ba6 R4d3 Be5 Ree2 Bg3 e3 Be5 Rf2 Bg3 e2 Be5 e1Q Bg3 Re7 Bde5 Qee4 Kd6 Qh4 Kc5 Bg4 Kd6 Rfe2 Kc5 Nd7+ Kc6 Nb8+ Kb7 Bd7 Qa3 Ree3 Qb2 Rd1 Re2 R1d2 Rf2 Ree2 Bd4 R7e4 Bde5 R4e3
k2NBq2/nb1rQ2N/2n5/1b1KbB1Q/N1Q2P1r/1R3rB1/R1Bn1r2/1q2B3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 e5 b4 c5 d4 Kc7 g4 Kb7 b6 a5 g6 h5 b5 a4 g7 a3 d6 h4 d5 c4 g5 a2 g6 c3 d7 c2 d6 h3 Bd3 h2 Nc3 Ra4 Bd2 c1Q Bc2 Ka8 b7+ Ka7 Nf3 Nc6 b8B+ Ka8 b6 Rh4 Ng5 Ra3 Nh7 Bb7 Qh5 Qb1 Be1 Nge7 g8B Na7 g7 Nec6 Be6 Qc8 g8B Bg7 f3 Qf8 d8N Bh8 Rg1 h1B d7 Ba6 Bg4 Bb5 Bf5 Bg7 Bf7 Bg2 Kf2 e3+ Kg3 e2 Na4 e4 Be8 e3 Rf1 Rh1 Kf4 Be5+ Ke4 Rh4+ Kd5 Rc3 Rg1 Bh1 Rg3 Bg2 Bf2 e1R Rh3 Rf1 Be1 e2 Bc7 Bd4 Bcg3 Be5 b7+ Kb8 Ke6 Rf2 f4 Rcf3 Kd5 Nc8 Bb4 e1R Ba5 Rd1+ Bd2 Ka7 b8Q+ Ka6 Qd6 Ka7 Qb4 Ka8 Qc4 Bh1 Ne6 N8a7 d8Q+ Kb7 Qe7+ Ka8 Ke4 Bg2 Be1 Rd7 Nd8 Qd1 Rb1 a1N Rb3 Qb1 Rb2 Nb3 Ra2 Rb7 Kd5 Nd2 Bfd3 Bh1 Bf5 Rd7+ Ke6 Re3 Bh2 Nb8 Rf3 Red3 Bg3 Bg2 Re3 Bb7 Rf3 Nbc6 Re3 R3d4 Rb3 Re4 Qce2 Re3 Qc4 Rc7 Kd5 Ref3 Qe6 Rg7 Qd6 Rc7 Qe7 Rd7+
B3R2b/qQrr2Qr/1B1q4/R1b1b3/Bk2P1B1/2N1nBNn/1K4NQ/1n5b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 Kc3 f5 h4 a5 b4 g5 c6 d5 b6 d4+ Kb2 f4 c4 f3 e6 Kd6 e7 a4 e8B f2 b7 d3 b5 Kc5 h5 d2 c7 g3 h6 g2 h7 g4 b6 g3 Nc3 Na6 b8Q Nb4 b7 Nf6 e4 Nh5 Rh3 Nf4 Be2 f1N Bf3 Nbd5 Nge2 Kb4 c5 g1Q c6 g2 Ng3 Bg4 c8B Bc5 c7 Nde3 Qc2 d1R Qa7 Bh5 Bcg4 Qd6 c8B Nd2 Bb5 Qf2 b8Q g1B Qg7 Nb1 Bb7 Ra7 Ba8 Rc7 Qb7 Bh2 Rh4 Nh3 Qe2 Rf8 h8N Rff7 Ng6 Rd4 Nf4 a3+ Ka2 Rd5 Ng2 Rfd7 Bd2 Rf5 Be1 Rff7 Qd2 Qg1 Bf2 Rfe7 Qg8 Rh7 Qg7 Ka5 Kb3 a2 Kb2 Kb4 Ba4+ Qb6 Nf5 Be5 Ng3 Qd1 Qc2 Qd6 Qe2 Bf7 Rh6 Bb3 Re6 Bd1 Qc2 Be2 Re8 Bf1 Ne1 Bg2 Bg1 Bh1 Qh2 Qf8 Bf2 Qd6 Ng2 Na3 Rd1 Nb1 Rd5 a1B+ Ka2 Bcd4 Qh6 Bf6 Nd1 Nf5 Ra5 Bh8 Qg7 Be3 Bg1 Be5 Nc3 B3d4 Kb2 Be3 Bb5 Qa7 Bf2 B3f4 Bd4 Be3 Bb6 Bc5 Ba4 Ne3
4rB2/QN4QK/qQ1Rb2r/1QN1q3/R1Pr2Q1/Rn2n3/n1qr1k2/B4Bb1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 a5 f4 g5 c4 d6 b4 a4 h6 d3 h7 d2 b6 a3 b7 g4 b5 a2 b6 g3 h5 g2 h6 Be7 Nc3 Qf8 Nge2 g1R Rh3 Be6 Bb2 Na6 b8Q Nb4 b7 Rg6 Ng3 Qc8 Qg4 d1R Qa7 Rd2 b8Q Qa6 Qb5 Rd8 Na4 Bf8 Nc5 Ne7 Nb7 Ned5 Rd1 Ne3 Ba1 Rhg8 h8R d5+ Kf3 d4 Ke4 d3 h7 Bc5 Qbb6 Kf7 f6 Rge8 f5 Rd6 Rg8 Rd7 h8Q Rd4+ Kf3 e4+ Kf4 Qa4 Qhh5 Qa6 Bc3 a1N Ke5 Re7 Ra8 Nb3 Ba1 Na2 Kf4 Re8 Qhg5 Kg8 f7+ Kg7 f8B+ Kf7 Qb5 Bb6 Qd8 Bc5 Qdb6 Kf6 Bc3 Rh2 Ba1 d2 Rd8 Rg2 Rd6 Re2 Rb1 d1Q Rc1 Rd2 Rb1 Nbc1 Rb4 Qc2 Ra4 Nb3 Rh5 Nd1 Rh3 e3+ Ne4+ Kf7 f6 e2 Rh6 e1Q Rh3 Ne3 Ke5 Kg8 Rf3 Kh7 f7 Qe2 Be7 Kh6 f8Q+ Rg7 Kf6 Qe1 Qf4+ Kh5 Qg8 Rg4 Bf8 Kh4 Qg7 Qe2 Qf5 Rg2 Rg3 Qh5 Qf3 Qe5+ Kg6 Rg1 Kh7 Rgg2 Qe2 Rg1 Rf3 Rg6 Q6c6 Bb6 Nec5 Kg4 Rf6+ Kg3 Qg4+ Kh2 Rf3 Kh1 Qh4+ Kg1 Rg3+ Kf2 Qg4 Bd8 Qcb6 Bg5 Qg8 Bf4 Rh3 Bh2 Qg7 Bg1 Rh1 Na5 Rh3 Ng2 Rb3 Ne3 Rba3 Nb3 Qgd7 Ng2 Qdc7 Ne3 Qg7 Rh6+
1bRBR1rR/7B/B1N2rR1/5b1b/1QPR1n2/2K2n1N/Q1b2Nn1/q1kq1q2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 a5 b4 e5 g4 h5 c4 d5 f6 Ke6 f7 h4 b6 h3 b7 h2 g6 e4 g7 a4 b5 a3 b6 e3+ Kc2 a2 g5 Kf5 g6 Ke4 f5 e2 f6 e1N+ Kb3 d3 Kc3 d2 Bg2+ Ke3 Qa4 Bd6 f8R Rh6 f7 Bf5 Nh3 Ne7 g8B Nd7 b8N Ne5 b7 N5f3 g7 Ng6 Nc6 Bb8 Bh7 Nf4 g8R Rf6 Rg6 Qd7 Bb2 d1B Nd2 Bdc2 Rd1 a1Q Ne4 Qb1 Qa2 Ke2 Nef2 d4+ Kb4 d3 Kc3 d2 Rc8 Qd8 f8R Ke3 Rh8 Qd6 Rf1 h1Q Ba3 Qf8 Be7 Qg1 Bh1 Neg2 Bd8 Qd6 Rc1 d1B Re1+ Be2 Rcd1 Qf1 Rd4 Ng5 Rc1 Bh5 Rcd1 Nf3 R1d2 Bc7 b8Q Qd7 Qb4 Bb8 Rd5 Qd6 R2d4 Ke2 Ne4 Ke1 Re5 Qd5 Ree8 Qd7 Nd2+ Kd1 Ne4+ Kc1 Nef2 Qd5 Rde4 Qdd1 Rd4 Bc7 Re5 Bd6 Ree8 Bb8 Bc7 Ra7 Qba5 Nd2 Ne5 Ne3 Bb7 Nf3 Qb4 Neg2 Ba6 Rb7 Bd8 Rg7 Nc6 Rg8 Qa1 Ne6 Qaa5 Nef4 Qa2 Qa1+
1RB5/rnQ5/nR1BnR1r/1KNP1n2/R2BQr1b/Q7/1q1R2q1/2qb2Nk w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 d4 h5 b4 a5 f4 c5 f6 e5 b6 h3 g5 a4 f5 a3 b5 a2 d6 h2 d7 h4 b7 h3 b6 Rh4 f7 Ne7 f6 Nf5 d5 Ra7 g6 Be7 f8B Rf4 g7 Na6 f7 Bh4 b8Q Qf6 Kb5 c4 g8R c3 d8Q c2 Be3 c1Q b7 Qg7 Ne2 Kf3 Qbc7 e4 b8R Qgb2+ Qb3 Be6 Bg1+ e3 Nbc3 Bc8 Rb1 a1N Qe8 Nc2 Bd6 Be6 f8R Ncd4+ Ka4 Bf7 Rg2 Bh5 Qa3 Ne6+ Ne4 Bg4 Bf2 Bh5 Rhg1 h1Q Rf6 h2 Ka5 Bg4 Nc5 Bh5 Rg4 Qg2 Qg6 h1R Qgh7 Qg3 Bh3 Qg2 Rd1 Rh2 Rd2 Rh1 Nc3 e2 Bd4 e1N Ne2+ Nd3 Qhe7 Qbc2 R1b4 Q2b2 Kb5 Rh2 Rgg6 Bg4 Ng1+ Kg3 Nb3 Ndc5 Ra4 Nb7 Rh6 Bd1 Bg4 Nf8 Qe4 Rh3 Rhg6 Kh2 Rh6 Kh1 Rhg6 Ng7 Be6 Nf5 Bc8 Qbc3 Nc5 Ne6 Rg3 Q3b2+ Rb3 Bg3 Kc6 Rh6 Rb6 Qbc3 Kb5 Bh4 Nh3 Q3c2 Ng1 Q2b2+
2bBqb1q/4B2R/2br3b/1P3k1q/B3RrN1/1Q1n3Q/1NBB1r2/K2nQ2N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b6 Kf7 f4 Kf6 d4 a5 Kd2 e5 Kc2 c5 b4 h5 Kb2 e4 g4 a4 d6 h3 d7 c4 b7 h2 d5 h4 g5+ Kg7 d6 e3 f6+ Kg6 f5+ Kf7 Nc3 e2 Nh3 e1R Nf2 h3 Bd3 Nc6 b8Q Bh6 Bc2 Bg7 Bd2 Re4 Qe1 Nge7 Ncd1 Qg8 d8Q Ne5 d7 Nd5 Qa5 Ra6 d8B Ne3 g6+ Kf8 f7 a3+ Kb1 a2+ Kb2 Rf4 Qa3 Rd6 Qd3 Bb7 Qc8 Rh5 Qb3 Rg5 Qd7 Bc8 Qe6 Rg2 Qd7 Bf6 Qe6 Kg7 f8N Kh6 g7 Kg5 b5 Be7 Nd7 Qe8 Nf6 Bf8 Qd7 Rb6 Qdd3 Rd6 N6g4+ Be7 Rf1 h1B f6 Rh2 f7 Bc6 f8B Rg2 g8B h2 Qa4 h1Q Bd5 Qh7 Rh1 Qhg6 Rh6 Qh5 Nh1 Re2 Rh7 Ref2 Nh2 Kf6 Qdf1 Kg5 Qh3 Kf6 Bf7 Kg5 Ng4 Nd3+ Ka3 Kf5 Rb1 Bf6 Bfe7 Bg7 Rb4 Bf8 Qb3 a1Q+ Qa2 Qg7 Nb2 Qh8 Ba4 c3 Bfb3 Nd5 Re4 Ne3 Bd1 c2 Qb3 R4f3 Ka2 c1B Bc2 Nd1 Bc3 Be3 Ka1 Beh6 Bd2 Rf4
RN4KB/2N4n/3R1BP1/r3Nr2/1k1b2B1/1nn1qb2/Q1b1N1QR/q1r1N1r1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 a5 d4+ Kb4 f4 c5 d6 c4 b6 c3 f6 h3 b7 h2 f5 h4 g5 h3 g6 e6 d7 c2 f7 a4 d5 a3 f6 a2 d6 Qb6 d8B Ka5 b4+ Ka4 d7 Ra6 b5 Qc6 b6 Ne7 Qd2 Ra7 Nf3 Nd5 Bb2 c1R Nc3+ Kb4 Qg2 Qa4 Ne2 Nc3 Ne1 Bc5 f8Q Ra5 f7 Rh5+ Kf6 e5 Kg7 e4 Qg8 e3 f8N Bd4+ Bf6 Rhf5 d8R Nd7 Ne6 Nf8 b8N Nh7 Nc7 Bb7 Kf7 Be4 b7 Bc2 Nd7 Qa3 b8N Qa4 Ng1 e2 Ne5 Qa3 Rd6 Qa4 Ne1f3 e1Q Ne2 Qg3 Ne1 Qe3 Kg7 Qa3 Q8d5 Qa4 Kg8 Qa3 Rb1 a1N Qa2 Nb3 Ra1 Qa4 Nf4 Qa3 Be2 Qa4 Bg4 Qa3 Rf1 h1R Ne2 h2 Rf3 Qa4 Rh3 Rg1 Rh5 h1B Rh2 Qa3 Qb1 Nd1 Bh8 Rd5 Qf1 Qa5 Ned7 Bc5 Bbf6 Bd4 Ne5 Bf3 Qg2 Nc3 Qb2 Qa3 Qb1 Qb2 Ra8 Qa1 Qa2 Ra5
2Q3B1/Q6q/1R1bPkr1/1rQ5/N2rn2q/nR5N/q1Nb1BQ1/1bK2qBQ w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Ke7 d4 a5 Kd2 g5 b4 f5 e4 c5 b6 a4 h6 f3 b5 g4 h7 c4 h5 g3 b7 f2 b6 g2 e5 a3 h6 f4 d6+ Kf7 d5 a2 d7 f3 d6 Qe8 d8B Na6 b8N Nc5 b7 Bh3 d7 Ne6 Na6 Rb8 Na3 Nf6 Qc2 Bd6 Rb1 a1Q Nc5 Bf5 Na4 Nc7 Rh3 c3+ Kd1 Rg8 h8Q Nb5 h7 Rg4 Be3 Qa2 Bc4+ Qe6 Bb3 Qc4 Qg7+ Ke6 Qc1 c2+ Kd2 f1R h8Q f2 Bdb6 Rg8 Qg5 Rg6 b8Q Re1 d8Q f1Q Qdc8+ Ke7 Bf4 Qf7 Qhh4 Qh7 Bg3 Rge4 Qb2 c1B+ Kc2 Bd2 Bg8 R1e2 e6 Be1+ Kc1 Qf2 Qbc3 Rb2 Bd4 Rb3 Q3c5 Qf1 Be3 Rd4 Rb2 Bb1 Nc2 Na3 Qba7+ Rb7 Bh2 Qf2 Rf3 Qg3 Bf2 Qg4 Qh3 Qgh4 Qgg3 Ne4 Rb4 Nb5 Rfb3 Na3 Qgg4 Kf6 Qhf3+ Kg7 Nh3 g1Q Qh1 Kf6 Qgg2 Qf1 Bhg1 Rb8 Rb6 Rb7 Ra6 Rb5 Rb6 Bd2#
1K2n1N1/NPB1nQ2/1N1n1B2/q3rrQ1/4B1bQ/3R1r2/b2R1bqN/2k1bN2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 g7 c3 f7 h4 d6 e6 f5 h3 b6 c2 b7 Kb3 f6 Rh4 Qe1 Rb4 Nd2+ Ka4 Qh4 Ne7 g8N Rf4 b4 Na6 b8N Rf3 Bg2 Nc7 Nc6 Ne8 Nf1 Kb3 b5 Qa5 Bb2 c1R d8B Kc2 d7 Bh6 f8Q Be3 f7 Re1 Rd1 a1N Bd4 Nb3 Na7 Nc5 Rd3 Ne4 Bc7 N4d6 d8Q Kc1 Qg7 Rb8 f8N Rb7 Qf7 Bf2+ Qe4 Rb6 Nd7 Rc6 Nb6 Rc5+ Nd5 Ree3 b6 Bd7 b7 Re2 Rd2 Ree3 Ba1 Rf5+ Kd4 Ref3+ Qe3 Bc8 Nb6 Rce5 Bc3 Rg3 Nf3 Bd7 Rg1 h1Q N3h2 Rgf3 Ng4 h2 Ba1 Rh3 Be4 Rhf3 Rg3 Qg2 Rh3 h1B Ngh2 Ng6 Qh4 Ne7 Bd5 Bb5 Kc5 Bc4+ Nb5 Be2 Bd4 Bc4 Qeg5 Ba2 Rg3 Ree3 Bf6 e5 Bc6 e4+ Bd5 Ng6 Kc6 Ne7+ Kd7 Re2 Na7 e3 Bc6 Re1 Be4 e2 Ne3 Rf1 Rh3 e1B Kd8 Rg1 Nef1 Re5 Kd7 Rff5 Rhd3 Rf3 Ne3 Rf1 Na4 Rff5 Bf3 Qg4 Nb6 Bg3 Bd5 Bf3 Be4 Qh3 Kd8 Qg2 Kd7 Rf2 Nef1 Bg4 Kd8 R2f3 Kd7 Ng6 Kd8 Bgf2 Kd7 Nb5 Kc8 Nbd6+ Kb8 Ne7
N1Rb2nn/3nrBKR/k1b4P/N2nRB2/1B4N1/1Q3qn1/4b2r/1R1R2Qn w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kf5 g5 d4 c4 h4 f3 b4 f6 Kg6 Kc7 e4 Kb6 e5 f5 e6 a4 d6 g4 d5 a3 e7 f4 e8B a2 h6 c3 h7 f2 d7 g3 d6 f3 h5 c2 h6 g2 Nc3 Ra4 Ba3 c1N Bd3 f1B Rh5 f2 Rb1 a1N Nd5+ Ka7 b6+ Kb7 b5 Ne2 Bb4 Ra5 Nh3 g1N Nc7 Nf3 Re5 Ng5 Bf5 Be7 Bf7 Qf8 d8R Ra2 d7 Nc2 Na8 Ne3 Re8 Rd2 d8R Ng3 Rd3 Bd7 Rc8 Be2 Qg1 f1N Nf2 Nd5 Ng4 Rb2 Rd2 Bd8 Rdd1 Qe7 Kg7 Nh1 Rc4 Nfg3 Rc6 Ngf6 Rc8 Re8 h8R Bc6 Rh7 Nbd7 Rc7+ Kb8 b7 Qc5 Rc8+ Ka7 b8N Re7 b6+ Kb7 Qg2 Qc3 Qh2 Qf3 Qg1 Bcb5 Nc6 Ng8 Na5+ Ka6 b7 Bc6 b8Q Rc2 Ba3 Ra2 Qb3 Rc2 Kh8 Rd2 Bb4 Rb2 B7e6 Nf7+ Kg7 Nh8+ Bf7 Bd3 Nf6 Rh2 Ng4 Be2
Rr1bq1n1/3Q2BR/1QPN2Q1/K3b1b1/1r5Q/N1n1b2Q/N1b2bBB/k1n5 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 h4 d5 c4 g5 f4+ Ke4 f6 e5 f5 d4 h5 d3 h6 Kd4 h7 d2 f7 e4 f6 e3 b6 e2 b7 e1B Bg2 g3 Na3 Nd7 b8B Bh6 f8Q g4 f7 Bg5 c6 Qe8 c7 Nc5 Ka5 Nd3 b4 Kc3 c5 Bf2 c6 Bf5 c8N a6 Qf1 d1N b5 Be4 Be3 Kb2 b6 Nc3 b7 Nc1 Qh6 Bc2 f8Q Bd8+ Bc7 Rb8 Bd4 Be3 Qfd6 Beg5 Bf3 g2 Ne2 g1B Bg2 g3 Qd7 Bf2 Bg7 Bfe3 Qg6 Bf2 Nd6 Bfe3 Bf3 g2 Rh5 g1B Qfh3 Bgf2 Bg2 Nf6 Rh4 Rf8 h8Q Ng8 Qhh5 Rf4 Q5g4 Rc4 Rh7 Rb4 Qgh4 Rd4 Kb6 a5 Ka6 a4 Ka5 Rc8 b8Q+ Rb4 Qb6 Rb8 Nab5 a3 Ra2+ Kb3 Ra1 a2 Na3 Nb5 Nc3 Kb2 Rh8 Ne2 Rh1 a1B Na2+ Nbc3 Rh7 Nc1 Rf1 Be1 Rf8 Bg3 Nb7 Be1 Bh2 B1f2 Nd6 Ra8+ Qa7 Qe7 Rf7 Rb8 Bf8 Nb1 Bh6 Qe8 Bg7+ Kb3 Qe7 Be5 Qee6+ Kb2 Ra7 Ka1 Ra8 Nc3 Qe7 Bgf6 Qed7 Bfg5
Qb1R4/3P4/b1b5/1QRbbK2/BRQr4/kBr1r1bB/1N1nn1Bq/3N2B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d6 c5 d5 h5 b6 h4 d7 f6 d6 a4 g6 a3 g7 h3 g5 c4 b7 c3 g6 f3 Qd5 c2 Kf5 f2 e4 a2 e5 h2 e6 Qc7 d8R Ra3 Bh3 f1R+ Nf3 Rd1 Ne1 Rg3 Nc3 Bd7 Be3 c1B Rb1 a1B Bg1 Bc6 e7 Rd4 e8B Bf4 Nd1 Rc3 Nd3+ Ka4 b4 Ka3 b5 Bg3 Bg2 Rh3 Qc4 Bd5 b6 Nc6 b8Q Be7 d7 Bed6 b7 Bde5 Qc8 Bb2 b8Q Bc1 Qbb5 Bcf4 Bf2 Qb8 Re1 h1B Bg1 Qc7 Rc1 Qd6 Re4 Qc7 Kg4 Qb8 Bf7 f5+ Kf3 Qc7 Be6 Nf6 g8B Qd6 g7 Qb8 Qb1 Qb2 Bh7 Bb8 g8B Bfe5 Qb7 f4 Qa8+ Na5 Qac6 Rc2 Q4b5 Bc4 Qbb6 Nd5 Kg4 f3 Qa8 f2 Bf1 Rh2 Ne3 Nc3 Qbc6 Rd5 Nd1 Ba6 Kg5 Nb3 Beh3 Rd6 Rc4 Rd4 Be4 Re2 Kf5 Re3 Qc2 Bg2 Rb4 Bf3 Be2 f1B Bc4 B1g2 Bcd5 Na5 Bb3 Nc4 Ba4 Bh1 Qb5 Rf2 Bd5 Bhg2 Be6 Bc6+ Bf3 Bh1 Qe2 Qa2 Qf1 Rb2 Qe2 Rb3 Bfd5 Qd2 N3b2 Bf3 Qd3 Qh2 Qf1 Nd2 Be4 Bh5 Beg2 Bhf3 Qfd3 Ne2 Rc5 Rc3 Beb3 Bfd5 Qc2 Rcd3 Qcc4 Rc3
2r2r1n/1N4BQ/1nq1n1nn/b2bQRN1/2b1K1Q1/5B1b/RB1kBP2/B1N5 w - - 0 1 illegal: No possible last move
k4nR1/1r3rnB/K1QBn3/b3Nb2/1N1n4/1nnNqR2/P1N1B2Q/q2Q3N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 b5 f4 e5 g4 c5 f6 Kc7 f7 Kb7 f5 h5 g6 b3 d6 b2 g5 b4 Kc4 e4 Kb5 e3 d4 b3 d7 e2 g7 e1N f6 c4 g6 h4 d5 c3 d6 c2 Rh3 Ra6 Ne2 Ne7 g8Q Nd5 g7 Qe7 d8N+ Ka7 d7 Ka8 Na3 b1N Nc6 b2 d8Q Qe6 Bf4 c1N Qb6 Nc2 Ng3 Nb3 Nb4 Ra7 Be2 Qe3 Qh7 Bf5 g8B Rb7 Nh1 Nd7 Bd6 Nf4 Ka6 Ncd4 Qc6 Nfe6 Rf3 h3 Nac2 h2 Qh4 Be7 f8N Bd8 f7 Rh7 Ng6 Ndf8 Nf4 Nc3 Nfd3 b1Q Qf2 Rg7 Bh7 Ba5 Qg2 Qb2 Rb1 Qa1 Qf2 Ng6 f8N Rf7 Nd7 Ngf8 Qh4 Ng6 N7e5 Ngf8 Ng3 h1N Qh2 Nf2 Rc1 Nh3 Nh1 Ng7 Rb1 Nf4 Rb2 Nd2 Rb3 Nf4e6 Rg3 Nh5 Rg8 Nhg7 Qc7 Ncb5 Nb2 Qf4 Rf3 Qe3 Qc6 N2b3 N2d3 Nc3
1r4QN/1NRr2rr/q3Pb1N/1R1B3b/1Q3r2/nQBkn2N/1n4RN/4K1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 Ke5 h6 Kd4 d6 c5 d3 a5 b6 f5 b7 g5 h5 c4 b5 f3 e5 f2+ Kd2 g4 h7 a4 d7 f4 b6 g3 h6 a3 Rh4 a2 Rh2 f3 Bg2 f1R Qb3 f2 Nh3 Qf6 d8N Rg1 Nf7 f1R Bd5 g2 Bb2+ c3+ Ke2 Ne7 Nd2 Bd7 Rc1 Nbc6 b8Q a1R b7 Rf4 Nf1 Bg4+ Ke1 Na5 e6 Bh5 Qd6 Bg7 b8R Nc4 Rb5 Nf5 Qdb4 R1a7 Rc2 Rhb8 h8N Ne3 h7 Rd7 Nh6 Raa7 Ba1 Rh1 Bb2 g1N Rhg2 Qd8 Nh2 Bf6 Rc1 Qa5 Rcc2 Ng4 Ba1 Ke3 d4 Na3 Bb2 Qc7 Ba1 Qc4 Rc1 Qd3 Bb2 c2 Bc3 Rac7 Bf3 Qd2+ Kf1 Be5 d5 Bg7 d6 Bd4 Ng5 Be8 Ng6 Rdd8 h8Q Rc6 d7 Nc4 Nhf7 Bf6 Qg8 Qd6 Ke1 Rc7 Bd5 Na3 Nf1+ Kd3 Ngh8 Rh7 Nh3 Qa6 Nh6 Bh5 Nh2 Rcb7 Qg7 Rg8 d8N Rd7 Qgf8 Rg6 Qg8 Rgg7 Nb7 Ke3 Rd1 c1N Rd4 Nd3+ Kd1 Nb2+ Ke1 Rc8 Re4+ Kd3 Rc4 Ne3 Rc7 Rb8
3B1N1R/1k1nbKBP/4N3/7n/2Q2q2/1r2rnn1/qN1Q1RBn/1b1QQ1nQ w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 g5 d4 a5 f4 a4 h4 g3 b4 g4 f6 c4 d6+ Kb7 b6 g2 f7 a3 f5 a2 d7 c3 Ke6 c2 h5 g3 b5 Ra7 f6 Bh6 f8Q Bf4 f7 Qe8 h6 Bg5 d5 Rh7 d6 Ra3 Bb2 c1Q Nc3 Bf6 Na4 Qf4 Ne2 g1N Bg2+ Nf3 Nd4 Rb3 Qd2 Rh8 Raf1 a1N Rf2 Nc2 Qd1 Qd8 Qe8 Ne3 f8N Nf5 Kf7 e5 Nde6 e4 Qe7 Bg5 Bg7 e3 Nb2 e2 Rh5 Qc7 d8Q e1N d7 Qcc4 Qb4 Qc2 Qc4 Nf6 Qe7 Rg8 d8B+ Nbd7 Qed6 Qb1 Q6d2 Qa2 Rh1 Nh5 Rh3 Kb8 b7 Be7 Rh2 Ka7 Rh3 Nh2 Rh4 Qc7 Rh3 Kb6 b8Q+ Bb7 Qc8 Be4 Qa8 Bb1 Qae4 Nef3 Qee1 Kb7 b6 Qf4 Qh1 Kb8 b7 Re3 Qcb4 Ka7 b8Q+ Ka6 Q8d6+ Ka7 Qbc5+ Kb7 Qde5 Rb3 Qc4 Re3 Bf1 g2 Rh4 g1N Bg2 Rb3 Qee1 Re3 Bd4 Rg3 Bg7 Rd3 h7 Rh3 Rg4 Re3 Rg5 Nfg3+ Rf5 Ndf6 Ra5 Rb3 Ra8 Nd7+ Bf6 Nc5 Ng6 Ngf1 Bc7 Nd7 Rh8 Rg3 Ngf8 Rh3 Bd8 Rg3 Re2 Rh3 Re4 Nd4 Re2+ Rhf3 Rf2 Nfg3 Nd3 Nc6 Nb2 Rfe3 Rf3 Nd4 Rf2+ Qe4 Be5 Ndf3 Bg7 Qf4+
B2N4/1Q4nN/r1br2r1/6BR/b3b3/qQNn1N2/1PKQN1rB/1Rb1n2k w - - 0 1 illegal: No possible last move, all moves rejected
1qbr4/B1nnN2q/1BrBb1RQ/6b1/2NB4/1k3K2/R2R1PBb/n1Qn1N2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 d4 a5 b4 e5 g4 c5 f6 h5 g5 a4 b6 c4 b5 a3 d6 Ke6 d7 Kd5 g6 c3 f7 Kc4 b7 a2 g7 c2 b6 e4 d5 e3 d6 h3 Bb2 c1B Qe1 h4 Bg2 h2 Bd4 h3 Kf3 e2 Na3+ Kb3 Nc4 Nf6 g8N Nd5 Ne7 Bg5 Qc1 Bfh6 f8Q Nc7 Qf6 Ra6 Qff4 Qg8 d8B Nd7 b8B Qh7 b7 Rc6 Bba7 e1N+ Ke2 Re8 b8B Nd3 Nf3 Nb2 Rg1 h1B Nh2 Nd1 Nf1 h2 Kf3 Qh8 Qf6 Bf4 Qe6 Bhg5 Qh6 Qe5 Bab6 Qb5 B8a7 Be5 Bbc5 Qb8 Bb4 Nd5 B8b6 Nc7 Bb4c5 Rd8 Qd2 Nf6 d7 Bg3 Bd6 B3f4 Rc1 a1N Rc2 Be5 Qc1 Bg3 Ra2 Be5 Ke2 Bef4 Bh3 Bd5 Bg2 Be6 Kf3 h1Q Ba3 Rf8 d8R Nd7 Bd6 Rh8 Rg8 Qh2 Rg6 Rd8 Rh1 Qg1 Rh4 Bh2 Re4 Qh1 Ree2 Bg3 Red2 Qh3 Qg7 Qh7 Qh6 Bh2
Qb1B3k/1BR1nnq1/2bq2Rr/8/4P1KN/5rbN/4qNQB/Qbq2N1N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 c5 h4 f5 d4 Kf7 b4 g5 e4 Kg7 d6 c4 d5 c3 b6 a4 d7 c2 b7 a3 b5 a2 d6 Qc7 d8Q Ne7 d7 Na6 b8Q Nc6 b6 Nab4 b7 Bd6 h6+ Kh7 h5 Bc5 Ne2 Ra4 Ng3 Be7 Ba6 Nd5 Qa8 Bd6 b8N Nde7 Rg1 Bb7 Nh1 Ra3+ Be3 c1Q Nd2 Be5 Nf1 Qd6 Qb6 Nd8 Qb2 Kg8 Qg2 Bc6 Bb7 Nf7 d8B Rd3 Rb1 a1B h7+ Kg7 Nd7 g4+ Ke2 g3 Kf3 Bac3 Nf6 Be1 Ng4 Ra3 Ngf2 Rd3 Qh2 g2 Qda4 Rb3 Qa1 Rd3 Rb4 Ra3 Rc4 Rc3 Ng4 Bg3 Ngf2 Rd3 Ke2 Rc3 Ba7 Rf3 Bb8 Rg8 Rc3 Kh8 Rc5 Rg6 Qh3 Kg7 h8N Rh6 Ng6 Kg8 Nh4 Kh8 Rc4 Bd4 Rc3 Ba7 Bbc7 Bb8 Qg4 Rg6 h6 Re6 h7 Rg6 Nd2 Rh6 Re1 g1Q Nf1 Bh2 Qh3 Qg7 Qg2 Bg3 Rc4 Qca3 Rb1 Qc1 Rb6 Ra3 Rb5 Qd7 Nd2 Bh2 Qa7 Bd5 Nd1 f3+ Kf2 f4 Be5 Qd6 Rc7 Bc6 Qa8 Rc3 Bf6 Rd3 Rg5 Rc3 Bd4 Ra3 Rg6 Bg3+ Kf1 f2 Ke2 Rd3 Be3 f1B+ Kf3 Rc3 Kg4 f3 Bg1 f2 Bh2 Bd3 Nc4 f1Q Ndf2 Qe3 Nd2 Qc1 Nf1 Qed2 Nf3 Bb1 Ng5 Qe3 Ngh3 Qf8 Re6 Kg7 h8N Kg8 Rf6 Qg7+ Ng6 Qed2 Re6 Rf3 Rf6 Qe2 Re6 Qf6 Nh4 Qg7+ Rg6 Kh8
3KQ1BN/1QQ1N2b/1n6/rNr4P/R4q1r/2N1b2k/Bb1n1rq1/B1bN1R2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kf5 g5 h4 c4 d4 c3 e4 g4 b4 g3 b6 c2 d6 a4 e5 f6 b7 a3 e6+ Ke8 b5 a2 b6 g2 d5 f3 d7+ Ke7 h6 f2 h5 Qe8 d8N Qf7 d6+ Ke8 d7+ Ke7 h7 Ra7 Qf3 Bg7 Nh3 g1B Nc3 Ra4 Bb2 c1B Bc4 f1Q Nf2 Qg2 Nfd1 Bge3 Rf1 Qf8 Bb3 Rh4 Nc6+ Kd6 d8N Nd7 e7 Qf7 Rb1 a1R e8B Ra5+ Bd5 Rc5 Na7 Ke7 b8Q Ba6 b7 Nb6 Ne4 Bd3 Ba1 Ra5 Qbg3 Qf8 Kg6 f5 b8Q f4 Nb5 Bgb2 Bef7 Nf6 Bg8 Kd7 Qe2 f3 Nc6 f2 Ba2 Qh6+ Kf7 Qf4 Nec3 Ne4+ Kg7 Nd2 Ne7 Ba3 Rb3 Bab2 Rb4 Bg6 Ra4 Bb1 Bgf7 Rc8 h8N Rc5 Kf8 Bh7 Qb7+ Rc7 Rg1 f1R Qg7 Rf2 Rf1 Bf5 Bg8 Bg6+ Qf7 Bh7 Na3 Kd6 Ke8 Ke5 Nab5 Rc5 Qfc4 Kf6 Kd8 Kg5 Qe1 Kg4 Qf7 Qb4 Qf4+ Kh3 Qfc7 Qf4 Qe2 Bd4 Qee4 Be3 Qg6 Rc4 Qe8 Rc5
1nR4r/NK3BR1/3nNr1Q/qb2PQ1R/1b3N2/1r1q3r/1B1k3N/1Bb2bN1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d6 c5 Kd5 h5 e4 f5 d7 c4 g6 c3 g7 f3 b6 a4 e5 f2 g5 a3 b7 a2 g6 h4 Qc2 f4 Bd3 f1B Nd2 h3 Ndf3 Qh4 d8N h2 Ne6 Nc6 b8R+ Bb7 Rc8 Nh6 g8Q Rh7 g7 Qh3 Qh8 Qh5 g8B Bg2 Bf7 Qg6 b3 Ba6 Bb2 Be7 Qf8 Nf5 Qh6 Bb5 Qb1 Ka5 b4+ Ka4 Qf1 Kb3 Bb1 Nd6 Qd3 Rb8 Qf5 c2 Kc5 c1B d5 Bc4 b5 Rh8 b6 Bb5 b7 Bgf1 Kb6 Qh7 Qfg5 Qd3 Qf5 Ra8 b8N Ra3 Kc7 Kc4 Kb6 Rb3 Kc7 Ne4 Kb7 Bb4 Ba3 Kc3 d6 Bd2 d7 Bc1 Ne1 f3 d8N f2 Nf4 Kd2 Bb2 Qe2 Nde6 Qd3 Na6 Nb8 Nac7 Bd7 Nb5 Nd6+ Ka8 Be8 Na7 Ba4 Ngh3 Bb5 Nf3+ Kd1 Rg1 h1R Rg7 Rh2 Nhg1 Rh3 Nh2 Kd2 Bc2 Qe2 Rb1 a1Q Be4 Qa2 Ra1 Qa5 Bb1 Qd3 Ra4 Bc3 Re4 Bb4 Re3 Be2 Reg3 f1R R3g5 Rf2 Rh5 Bf1 Rcg8 Rg2 Rd8 Rg6 Rc8 Nc4 Kb7 Rf6 Rg4 Qe2 Rgg8 Qd3 Rg7 Nd6+
n7/N1BN2bb/4Q1nn/rB1P1Q2/q1r1N1r1/1q1Bk3/RBR1Br2/Q4K1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 b4 Kd6 g4 f5 e4 c5 b6 a5 b5 h5 g6 f3 b7 h4 b6 f4 g5 c4 g7 h3 g6 c3 Ra2 c2 Bd3 h2 Nc3 f2+ Kf1 a4 Nf3 a3 Nd2 Na6 b8N Bf5 b7 Ne7 g8Q Nc7 g7 Rh4 Nd7 Rg4 b8B Ng6 Bb2 Ra5 Qa1 Qf6 Rg1 h1N Rg2 Qf7 Qh7 Qe6 g8B Bg7 Qh3 Qf7 Qe3 c1R+ Qe1 Ke7 d6+ Ke6 e5 Na8 Nb5 Kd5 e6 Rc4 e7 Qe6 e8B Qf7 Ke2 f1N Bc7 Ne3 Ne4 Qe6 Qf2 f3+ Ke1 Qf7 Na7 Qe6 Qc2 f2+ Ke2 f1R Bgf7 Ne7 Bh5 Bh7 Qb3 Rf2+ Ke1 Rf7 Rc2 N3f5 Kf1 Ng6 Qb6 Rf4+ Bf3 Rg4 Bfe2 Rf6 Ndc5 Qg8 Bb5 Qb8 d7 Nh6+ Ke1 Rf2 Qa6 Qc8 d8Q+ Qd7 Qdc8 Qe6 Nd7 Qb6 Ba4 Qb3 Bc6+ Ke6 d5+ Kf5 Nd6+ Kf4 Bb5 Ke3 Ne4 Nf5 Qe6 Nh6 Qf5 Be5 Qa6 Ng3 Qb1 Nh1 Qae6 Bg7 Ra1 a2 Qd1 Rh2 Kf1 Rhg2 Rb1 a1Q Rbc1 Qaa4 Ra1 Rc5 Ra2 Rc4 Qa1 Rf2+
4N3/r6b/3RPb2/1N1Qb2n/RRNQ1q1R/r2qn1Bb/r2RK1B1/1B1r2k1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 b4 h5 g4 c5 b6 a5 g6 f5 b7 a4 b5 h4 g5 c4 g7 c3 b6 a3 g6 c2 Kf2 a2 Rh3 f3 Nd2 f4 Ne2 Nd7 b8N Nh6 g8Q Nf6 b7 Rh7 g7 Be7 Na6 Nh5 b8R Bf6 Rb4 Nf5 Nc3 Ne3 Bg2 Bf5 Nc7 Ra3 Qh8 Qf8 g8B Rg7 Rh1 h3 Bh7 h2 Ke1 f2+ Ke2 f1R Qg8 Qd8 e5+ Ke7 e6 Kd6 Qh8 Rg1 Bb2 c1Q Bg6 Bh3 Bb1 Rf7 Qb3 Rd1 Qg7 Bf5 Qg4 Bh7 Ne8+ Ke7 Nb5 f3+ Kf2 Qcc7 Nc4 Qf4 Bc3 Be5 Be1 Qd6 Ng7 Qd7 d6+ Kf6 d5 Qd8 Qd3 Rfa7 d7 Rd2+ Qe2 Rb2 d6 Rc2 Qh4+ Kg6 Ne8 Kf5 Qd2 Ke4 Rf1 h1R Qg5 Qb6 d8R Qd4 d7 Qd3 Qg7 Rc1 Qg5 Rh2 Rh1 Bf6 Qc5 Rd1 Qd4+ Kf5 Ra8 Kg4 d8R Kh4 Rd6 Kg4 Bc2 Be5 Rc1 a1B Bb1 Bf6 Qd5 Bad4 Qb2 Bde5 Rc2 Kh4 Kg1+ Kg4 Rf2 Kg3 Qbd4 Rh4 Rh2 Rg4 Rd2+ f2+ Kh1 Ra2 Rh4 R7a3 Raa6 Rg7 Raa4 Ra7 Rh2 Kg4 Rh3 f1B Kg1 Ng7 Rh6 Nh5 Bf2 Rb3 Bg3 Rba3 Bh1 Kh3 Bf3 Qdf5 Kf2 Bg2 Ke2 Q5e4 Be1 Kh2 Bh4 Kg1 Bg3 Bh3 Bg2 Ng7 Rh4 Nh5 Bc2 Qef5 Bb1 Qd3+
Bn4B1/BPq1rbR1/3b3k/1b2n1rN/B1BQ1r2/2QR1rbN/Q3K3/2N3q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 g4 Kg6 b4 a5 b6 h5 b5 c5 b7 a4 b6 f3 d6 f4 d5 c4 d7 c3 d6 f2+ Ke2 c2 e5 a3 e6 h4 e7 a2 e8B+ Kg7 g6 h3 g5 h2 Nc3 Ra4 Qe1 Rh3 Bg2 f1R Be3 Ne7 Rd1 c1B Rd3 a1R Na2 Rg3 Qc3+ Rd4 Nh3 Ng8 Rg1 Nc6 b8Q h1Q Qa8 Qc7 d8Q Be6 d7 Rff3 Qa7 Bb2 Nc1 Ne5 Qa2 Bf7 Bf2 Bd6 Qf6+ Kf8 d8N Ne7 Ba4 N7c6 g7+ Kg8 Ne6 Kh7 g6+ Kh6 g8B Rg5 Be3 Nb8 Ng7 Rb4 Qd4 Bc3 Bf2 Be1 Nh5 Rab1 Be3 Bg3 Qc3 Re4 Qd4 Rb4 g7+ Ng6 Qc3 Re7 Qfd4 Ne5 Bf2 Be8 Bc4 Bf7 g8B Qh2 Rh1 Qg1 Be3 Rf1 Ba8 f3+ Kd2 f2 b7 Re1 Rh2 f1B Rg2 Rb3 Bf2 Re4 Kd1 Rf4 Kd2 Bh4 Rg4 Bg3 Ke3 Bg2 Ke2 Bc6 Be3 Bb5 Bf2 Rgf5 Rg7 Ra3 Qd5 Rg5 Ba7 Rb3 Qdd4 Rb1 Nb3 Rbf1 Nc1 R1f3
2Bnq2r/1P1Q2n1/BR1B4/1QKbR2n/2B1N3/k2b4/1bQN2Nq/r4nBb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 a5 d4 h5 e4 f5 g6 c5 g5 a4 e5+ Kc7 d6+ Kb6 d5 c4 d7 c3 e6 h4 d6 a3 e7 h3 e8Q f3 Ke3 a2 Kd4 f2 g7 c2 g6 h2 Nd2 f4 Ngf3 Rh4 Ne1 Nh6 g8B Ra5 g7 Bb7 Ng2 Ng4 Rb1 a1N Bgc4 f3 g8B Rh7 Bge6 Bd5 Rb3 Qe7 d8N Nf6 d7 Bg7 Nb7 Rh8 d8Q+ Qc7 Ba3 c1Q Qc2 Qe1 Bc8 Nh5+ Qe5 Bf6 Nd6 Ra4 Rg1 h1B Qd7 Bg7 Bfd3 f1B N6e4 f2 Rb1 Be2 Rb3 f1N Rb2 Nh2 Rf1 Ra6 Rf5 Nf1 Rb3 Bh6 Qee8 Qh2 Re5 Bg7 Bb2 Ba8 Bc3 Nc6+ Kd5 Ra2 Rb2 Nb3 Bd4+ Nc5 Bg1 Nd8+ Kd4 Na6 Rb1 Nc7 Rb2 Ka7 Kc5 Bd5 Rb3 Ra1 b6+ Ka8 b7+ Ka7 b5 Bf6 Qg8 Ne8 Qg5 Neg7 Rb2 Qeg3 Qgf5 Qg6 Rb4 Qe8 b8B+ Ka8 Bc7 Ka7 Bd6+ Bb7 Kd4 Kb6 Qg5 Ka5 b6+ Bd5 b7 Qf4 Ba6 Qh2 Bdc4 Bd3 Rb1 Qf7 Kc5 Qe8 Rf5 Bc3 Rb6 Bb2 Re5 Bc6 Rb3 Ka4 Rb6+ Ka3 Qgf5 Bd5 Qb5 Rb1 Qfd7 Ra1
1q1QB2r/1Rr5/Rqq5/R1R1NQK1/NBN3n1/1kp1B1P1/1nR1b1bn/b7 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 c5 Kf4 h5 d4 a5 b4 e6 d6 h3 d7 c4 f6 h4 g3 c3 d5 h2 d6 a4 b6 h3 b5 e5+ Kg5 Ke6 f4 e4 f5+ Ke5 b7 e3 b6 a3 Qf3 Kd4 Nd2 e2 Nc4 a2 Be3+ Kd3 Qh5 Kc2 Nf3 e1Q Nfe5 Nc6 b8N Qb1 b7 Nd4 Na6 Kb3 b8R+ Qb6 d8R Ra7 d7 Ba3 f7 Bb2 f8R Nh6 f6 Ng4 f7 Rc7 Rb7 Qe4 Rc1 a1Q Rc2 Qb1 Rfe8 Ba1 f8B Qg2 Bb4 Qgc6 Re6 Qb2 Rg1 h1B Bd3 h2 Bg6 Qb1 Be8 Bg2 Rf1 h1N Rf5 Nhf2 Rd6 Qb2 Nc5+ Ka2 Na4 Nd1 Rd5 Kb3 Ra5 Qb1 Rf6 Nb2 Qh3 Bd5 Qh7 Bg2 Qf5 Nf3+ Kg6 Nfh2 Kg5 Qcb5 Rc6 Qd5 Rcc5 Qde6 Rba7 Ba6 Rda8 Qd5 d8Q Qdc6 Rb7 Bb5 Nd6 Be2 Ndc4 Qd1 R8a6 Qdd6 Qdf6 Qd8 Qe7 Qc8 Qd8 Qb8
4k3/q1BR1rn1/1RB5/1rNQKB1Q/1P2Bnb1/R1B4q/r1q1p2b/3N1Q1b w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 e5 Ke3 a5 g4 c5 b4 h5 d4 h4 f4 c4 g6 c3 f5 c2 d6 a4 d7+ Ke7 d5 a3 g5 h3 f6+ Kd6 f7 Ke7 b6 a2 b7 h2 g7 Ra5 d6+ Ke6 g6 Na6 b8R Qc7 d8B Kd7 Qh5 Qb7 Bc7 Qc6 Bb2 c1Q+ Nd2 Q1c2 Ne2 Nf6 g8B Rb5 g7 Qa8 Bh7 Nc5 g8B Nd3 Rb6 Qa7 Nc3 Ne8 Bg2 Nf4 Nd1 Ng7 Bc3 Be7 Rf1 h1B f8Q Bd8 Bg6 Rh7 Nb3 Bh4 Re1 Bg3 Bd5 Bh2 Rf1 Ne8 Rf2 Rf7 Rd2 Ng7 Bf3 Re7 Qf6 Rf7 Nc5+ Ke8 Bf5 Be6 Bc6+ Bd7 Rb1 a1R Rb3 Ra2 Ra3 Qa6 Bg2 Qa7 Kf2 e3+ Kf3 e2 Rd5 Qca4 Ke4 Qc2+ Rd3 Nfe6 Kd5 e1Q Bge4 Qh4 Rd2 Qh3 Rd4 Kf8 Rd2 Bc8 d7 Nf4+ Kc4 Ne8 d8Q Be6+ Qd5 Ng7 Bd3 e4 Kd4 e3 Ke5 e2 Bde4 Bg1 Qfh4 Bd7 Qf2 Bh2 Qf1 Be6 Qb3 Ke7 Rd7+ Kf8 Qd5 Ke8 Bg6 Bg4 Bh7 Qa8 Bhf5 Qa7
2BN1R1n/1Q3B2/RnK1qk2/5p1P/R1QNb2R/b1n1Rq1r/5Q2/2qr1rB1 w - - 0 1 illegal: No possible last move
4q2k/2b1Q3/qr2N3/q2pn3/1P6/R2R1NNb/KBBQn3/B1bQnrNN w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 b4 a5 h4 d5 c4 g5 Kc2 Kg7 Kb2 e5 f4 d3 b6 g4 f6+ Kh7 f5 g3 h6 g2 h5 a4 f7 e4 c5 e3 c6 e2 f6 e1Q c7 d2 b7 a3+ Ka2 Ra5 Bb2 Ra6 Rh3 Nd7 b8Q Rc6 Bd3+ Qe4 Bc2 Qg6 Nc3 Rc5 Nce2 Ne7 Rd3 Qe8 Ng3 Rb5 Nh1 Nf5 Qa7 Bd6 f8Q Rb6 f7 Nd4 Qe7 Ne2 f8N+ Kg8 Ne6 Ne5 Qa6 Bd7 c8N Bc7 Nd6 Rh7 Qc8 Kh8 Ne4 Rf7 h7 Rf1 Neg3 Qf6 Qa8 Bc8 Qa4 Bd7 Qe1 d1N Qd2 Qfg6 Ng5 Ne3 N5f3 Bh3 Qb3 Qb5 Qa4 Qf7 Qb3 Qa5 Qa4 Kg7 h8B+ Kh7 Bg7 Qe8 h6 Kg8 Bb1 Kh7 Qad1 Nc2 Bf6+ Kg8 Bh8 Ne1 Bc2 Nf7 Bhc3 Ne5 h7+ Kh8 Qd8 Kg7 h8N Qa6 Nf7 Kg8 N7g5 Kh8 Kb3 a2 Qe7 Qa5 Ne6 Qa6 Rb1 a1Q Rc1 Q1a5 Ra1 Bg4 Ra3 Bf5 Nh3 g1B Ka2 Be3 Nhg1 Bh3 Ba1 Bf4 Bcb2 Be3 Qc3 Bc1 Qcd2 Qa7 Re3 Qaa8 Rd3 Q8a6
Bq1K4/1b1Q1N1Q/B3Q1R1/p3bnN1/6nB/BrN2BbP/1qrR4/n2r2k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 f5 Kf4 c5 d4 a5 e4 g6 b4 g3 b6 g2 e6+ Kd6 b7 c4 b5 c3 h3 c2 e7 Ra6 Kg5 f4 e5+ Kd7 d6 Ke6 d5+ Kf7 b6 f3 d7 f2 d6 Ke6 Ra2 Nc6 b8Q Nb4 b7 Bg7 Ba3 c1Q+ Rd2 Nf6 e8B Nc2 Qa7 Na1 b8Q Qb2 Nc3 Bb7 Qc8 Rb6 Nf3 g1B Ba6 Bh2 Rg1 f1N Qc6 Qc8 d8B Ng3 Qda4 Nf5 d7+ Nd6 Qh4 Bg3 Qh7 Qb8 Qc7 Nf5 Na4 Rb3 Qe3 Bf2 Bde7 Qd4 d8N+ Kd5 Qe2 Bc6 Nf7 Ba8 Beb5 Rc8 e6 Bc6 Bb7 Be1 Bd3 Qb2 Bd8 Bh8 e7 Bf2 Ba8 Bb7 Qe1 Bg7 Be2+ Ke4 Qd7 Rc2 Nc3+ Ke3 Rg4 Ng8 Rg1 Ngh6 Rg3 Bf8 Kf6 g5 Rg2 g4 Rg1 g3 Ba6+ Kf4 Qee6 g2 e8B Kg3 Nh8 Be1 Bh5 Bd6 Nf7 Bf4 Rd3 Kf2 Bg4 Nd6 Ke7 Ndf5+ Ke8 Be5 Rd2+ Ke3 Qc8 Bf2 Bh4 Be1 Kd8 Bf2 Rf1 g1R Rfd1 Rh1 Rg1 Be1 Rgg2 Bf2 Bh5 Rd1 Rg6 Be1 N3g5 Bg3 Bhe2 Kf2 Bh5+ Kg1 Bf3 Qa7 Qcc6 Ng4 Qcd7 Qb8+
Qqn1RB2/b1qN4/1nN1rR1R/p1r2QQB/5B2/nP2RR2/2bK2br/k7 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 Kd6 g4 c5 g5 e5 g6 a5 f6 h5 f5 e4 b3 h3 f7 c4 g7 c3 b6 h2 f6 e3 b7 e2 Nd2 h4 Ne4+ Kc7 d6+ Kb6 d5 Kb5 d7 Kb4 d6 h3 Bf4 c2 Qd5 c1R+ Kd2 e1N Ne2 Rh5 Nd4 Ra6 Nc5 Nc2 Be2 Qc7 d8R Bf5 d7 Re6 Re8 Ne7 d8Q Na3 g8R Nc8 Rg6 Nd7 b8Q+ Ndb6 Nd7 Bc5 f8R Bc2 f7 Rh8 Rf1 h1Q Qba8 h2 Qf5 Qhb7 Qdg5 h1B Rf3 Qbb8 Rh6 Bg2 Re3 Rh7 Rf6 Rh2 Bh5 Na4 Rh8 Ba7 Rhh6 Nab6 Ra2 Bce4 f8B+ Rc5 Ra1 Bc2 Rg1 Nb5 Rf1 Ka3 Nc6 Ka2 Rf2 Ka1 Rff3 Na3
KqN1bN1Q/2q3q1/2N1rb1p/1b3k1P/4r2n/3QnnB1/3R1BN1/N4BRQ w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 Kf7 Kc3 Ke6 Kc4 a5 e4 g5 h4 g3 f4 g4 c6 d6 b6 h6 Kb5 d5 c4 d4 c5 a4 c7 g2 b7 g3 Kb6 d3 h5 a3 f5+ Kd7 c6+ Ke7 f6+ Ke6 f7 d2 Ra2 Na6 b8B Qd6 Nf3 g1N Ne1 Qd8 Ng2 Bd7 Kb7 Nf3 c8N Nc7 Rg1 Ra4 Ne7 Nd5 c7 Rh7 c8N Be8 Nc6 Nge7 Qe1 d1B Rd2 a2 Na3 a1Q Nc2 Qc3 Na1 Ng6 Ba3 Qca5 Bc5 Be7 Bf2 Ne3 Bc7 Bf6 f8N+ Kf7 Bb8 Be2 e6+ Kg7 e5 Re4 e7 Qac7+ Ka8 Ngh4 e6 Bb5 Qe2 Qb6 Bf4 Qdc7 Qd3 Rh8 Ne1 g2 B4g3 Bg6 e8Q Rh7 Rh1 g1Q e7 Re6 Qed8 Be8 Q8d5 Qg2 Rg1 Kf7 Bh2 Qg7 Ng2 Rh8 Bhg3 Rg8 Q5b3 Rh8 Qd1 Re4 Nd7 Ke6 Nf8+ Kf5 Qc1 Bf7 e8Q Rg8 Nh7 Rf8 Qed8 Re8 Qd1 Re5 Qh8 Re6 Nf8 Be8 Be2 Bb2 Rh1 Re7 Qg1 Bf6 Bf1 Re5 Qh2 Re7 Rg1 Re6 Qh1 Qbb8+
1N1K3N/2rN1Brq/5P2/p2R2QR/3Br2b/Qb2R2B/3B2nq/1kB1q1nb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 e6 g5 h3 b6 h4 f6 h2 f5 h3 b7 c4 g6 c3 f7 c2 d7 Kb3 g7 Nf6 g8B Ra7 d5 Ba3 f8B Na6 b8N Rb7 d6 Nd5 Bg7 Ndc7 Nf3 Bc5 Ng5 Ba3 Nf7 Qh4 d8R Nc5 d7 Nb5 Qd6 Qh7 Kf6 e5 Ke7 e4 Nc3 e3 Ne4 e2 Bd4 Ne6 Nf6 e1Q Re8 Nf4+ Kd8 Ra7 Re3+ Nc3 Rb1 Ka2 b4 Ng2 b5 Ne2 b6 Rb7 Rb5 Ng1 Rd5 Kb1 Qc5 Rc7 b7 Bb2 Bd2 c1R Qa3 R1c6 Bc1 Re6 Bd2 Re4 Bc1 Qhh4 Bd2 Rh5 Nh8 Rg5 Bf7 Qh5 Nc6 Bc3 b8B Qh7 Bba7 Rg7 Nb8 Bb4 Bb2 Ba6 Bbc1 Bc4 Bd4 Be7+ Ke8 Qd1 d8Q Bb3 Nfd7 Bh4+ Qde7 Qe2 Kd8 Qe1 Qg5 Nf3 Rg1 h1Q f6 Qh2 Rh1 Ng1 Be2 Qd6 Bg4 h2 Bh3 Ne2 Rf1 h1B Rff5 Qf4 Qg3 Qd6 Rh5 Ng1 Qg5 Qh2
R5qb/Kr1k4/Bnp2Qn1/N1R5/1N1N1bN1/n1rB2B1/P3R1bQ/N4q1q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 b5 Ke3 e5 f4 h5 g4 b3 d4 b2 f6 e4 f5 b4 d6 b3 d5 h4 Kd4 h3 Kc5 h2 f7+ Kd7 f6 e3 g6 e2 g7 e1B g5 Rh4 g6 Nh6 g8N Qe8 g7 Raa4 Qh5 Bg3 Ba6 Rh3 Nf3 Ra3 Nd4 Ra4 Nd2 b1Q Re1 h1Q Re2 b2 N2b3 Qf5 Bf4 Qd1 Rc1 b1N Na1 Be7 f8R Qeg6 f7 Ng4 Nh6 Ra3 g8B Qe1 Bh7 Ne5 Ng4 Bh2 Bg3 Qg8 Rc4 Qfg5 Bd3 Qf4 Kb5 Qh6 Rc5 Qf1 Re8 Ng6 f8Q Qhc1 Qf6 Rc3 Rf8 Bb7 Rc8 Nc6 Ra8 Nb8 Qhe5 Rh8 Qh5 Bg1 Qh2 Be3 Ka5 Bf4 Kb5 Kd8 d7 Qcd1 Ndc2 Qh1 Nb4 Qdg1 Ka5 Qf1 Kb5 Na3+ Ka5 c6 Kb6 Bc8 Ka7 Kc7 d8N Nd7 Nb7 Nb6 d6+ Kd7 Na5 Bf8 N5b3 Bg7 Nd4 Rh5 Rc4 Rb5 Rc5 Bh8 Qf7+ Kd8 d7 Kc7 d8N+ Kd6 Nf6 Bh3 Ng4 Bg2 Qf6+ Kd7 Nb7 Na4 Na5 Rb8 Nac2 Nb6 Na1 Rb7+
4bB2/b2r4/nPNbN2n/1qQ4B/4B2k/1R2B1nr/QqRRpK1Q/3Bq3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kf7 b4 Kg6 f4 h5 g4 a5 d6 e5 d7 c5 d5 e3 b6 e2 f5+ Kh7 d6 a4 f6 Kg6 f7 a3 b7 a2 b5 e4 b6 c4 Qa4 c3 Nf3 h4 Rh2 c2 Bg2 h3 Nc3 Ra6 Ne5+ Kg7 g6 Kf6 g7 Qe7 d8R Bd7 g5+ Kf5 g6 Kf6 Nb5 Ra5 Rb1 a1B Be3 c1Q+ Kf2 Qe8 Nc6 Na6 b8Q Be5 Rb3 Qb2 Nbd4 Rd5 Qa2 Nh6 g8B Bf4 g7 Kg5 Bf3 Kh4 Ne6 Be7 Rg2 h2 f8B Rh7 Bf7 h1N+ Ke1 Rd4 g8B Ng3 Kf2 Rd1 B3h5 Rh1 Bg4 Rh3 Bfh5 Rf7 Bh7 Rg7 Na7 Bb5 d7 Bed6 Qc8 Bb8 Rh2 Bfd6 Nc6 Ba7 Qc7 Re7 Rc8 Ba4 d8Q Qd7 Qb8 Qe8 Qdc7 Rd7 Rh1 Bb5 Rd1 Ba4 Rd2 e1Q+ Kg2 Qh1+ Kf2 Qe7 Bd1 Qg5 Nb4 Qa5 Qc5 Bc6 B7g6 Qb5 Bh7 Rd8 Bf5 Be8 Nc6 Rd7 Bh7 Be7 Qbe5 Bd6 B7g6 Ne2 Qh2 Ng3 Rc7 Qa1 Qf5 Qb4 Bf4 Bf7 Ncd4 Qb5 Rcc2 Qb2 Nc6 Be8 Bh7 Nf1 Qc5 e3+ Ke1 e2 Kf2 Ng3 Be3 Rf7+ Bf5 Rd7 Be4 Qe1+
RB3N2/QN4qP/q1KRn3/p2r1q2/2B1rQ1b/kn4NB/2Q5/bb1Qn2Q w - - 0 1 illegal: No possible last move, all moves rejected
k2BqR1R/4RQ1p/B1nN1N1n/2n2N2/1Q1Pbq2/b2r3b/1KB4q/1NNr4 w - - 0 1 illegal: No possible last move
q1bn4/q2BrR1p/Q1P3Q1/QnQ3rB/1NR1QR2/bKN1n1B1/2q5/2k4b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 a5 Kc2 d5 g4 e5 f4 d3+ Kb3 d4 b6 d2 c5 e4 f6 Ke6 c6 Kd5 f7 e3 g6 Ke4 g5 d3 g7 e2 g6 Ke3 f5 e1N b7 Qd7 f6 Bb4 f8R Nc2 f7 Qc7 Qe1+ Kd4 Na3 d1Q Be2 d2 Rh4+ Ke3 Bh5+ Qe2 Rf4 Ne7 g8Q Na6 b8Q Bc5 g7 Bf5 Qb5 Bc8 Qf1 Qf2 Ne2 Ng6 Nc3 Qa7 Qh1 Nc7 Qa6 Ne5 Rc4 Ne1 Nc2+ Kd3 Rb1 d1B Bf4 Ba3 Bg3 Kd2 Qe4 Bf3 Nb4 Nc2 Rf1 Qe2 Rf2 Bh1 Rf4 Qd1 Re8 Nb5 f8Q Nf7 Qc5 Qe2 Rf8 Nd8 R8f7 Ne3 Qge8 Rf8 g8B Kc1 Q8e6 Re8 Q6g6 Qb6 R7f5 Qf2 Be6 Qa7 Rf7 Re7 Bd7 a4+ Ka2 Nc7 Qab6 Qb7 Nc2 Bb4 Qcd6 Ba5 b4 a3 b5 Bb4 Kb3 a2 Qa7 a1Q b6 Qba6 b7 Rb8 Qb6 Qa8 Qde5 Q1a7 Qa6 Ba3 Qea5 Re5 Nb4 Rg5 Bh3 Nb5 Bf5 Be6 Bfg4 Rc8 b8Q Rc7 Qbb6 Re7 Qc5 Bc8 Bd7 Qc2+
5N2/2qNpq1r/N2b1q2/2n2rrk/2B1RQnN/5BBR/KQ1R3P/nN1b4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Nc3 Kf7 Kd2 g5 f4 a5 b4 d5 f6 g4 b6 a4 h6 Kg6 f7 d3 b5 a3 b7 a2 f5+ Kh5 b6 d4 f6 Rh7 Nf3 g3 Qe2 Na6 b8Q g2 b7 Rh8 h7 g1N Qbe5+ Kh6 b8N Ra7 Kd1+ Kg6 Bf4 d2 Bg3 Bg4 Rc1 a1Q Nb1 Qb2 c4 Nh6 c5 Qbb6 Kc2 d1R c6 d3+ Kc3 d2 c7 Bg7 c8B Qdc7+ Qc4 Re1 Rd1 Re3+ Kc2 Ne2 Bb7 Nc1 Be2 Qe6 Kb2 Nb3 Ka2 Na1 Qb2 Re5 Rhe1 Rg5 Bd5 Ra8 Qe4+ Qf5 Bec4 Rf8 h8R Nc5+ Na6 Rac8 Rc1 d1Q Rc2 Qd4 Qf4 Qe6 Rd2 Bh5 Ng1 Bd1 Nf3 Ng4 Rh3 Qde5 Nh4+ Kh5 Bb7 Rh8 Bbd5 Rh7 Bf3 Rf5 Re4 Rg8 f8N Q5d6 f7 Be5 Nd7 Rgg5 f8N Qf7 Bb3 Qdf6 Bc4 Bd6
K2R3n/QR1P4/bQB1nr2/b2N1BBR/pQ1B4/1q3krB/7q/N2r1bq1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 h5 g4 a5 b4 f6 g6 f3 g7 c4 b6 f2 b5 c3 b7 a4 b6 h4 g5 h3 g6 c2 Bb2 c1Q Qd2 h2 Bh3 f1R Na3 Nc6 b8Q+ Qc7 b7 Qc4 Qb4+ Qc5 Qa7 Rb8 Nc2 Rf2 Rb1 Na5 Na1 Ne7 g8B Nec6 g7 Qd7 Bge6 Nc4 g8R Qf7 Bef5 Ra8 b8Q+ Qc7 e3 Ba6 Q8b6 Rd8 Ne2 Ne5 Nf4 Qb8 Bc3 Be7 Rb2 Rd7 Rd8 Rg8 Rbb1 Bf8 Rb3 Rg3 Bb2 Ke7 d6+ Kf7 d5 Nd4 Bc3 Ne6 Bd4 Ng6 Rbb1 Nh8 Rb2 Rc7 d7 Qc4 d6 Qb3 Nd5 Rc1 Rc2 Rff3 Rc7 Rd1 Rb7 Kg7 Rc8 Kh6 d8B Kh5 Be7 Kg5 Rd8 Kh4 Nc7 Qb2 Kd5 Qb3+ Kc6 Bh6 e4 Bd2 e5 Rf4 Re1 h1Q+ Nd5 Qg1 Re2 Bc3 Rh2 Be1 Qc4 Ba5 Qcb4 Ng7 e6 Kh5 Bd3 f5 Bg5 Rff3 e7 f4 Bh7 Ne6 B7f5 Rff1 Rh1 f3 Rh2 f2 e8B+ Ng6 d7 Qe5 Bf7 Qe2 Bg8 Nh8 Rh1 Nf4 Kc7 Ne6+ Kb8 Qd2 Bgh7 Qf4+ Ka8 Qh4 Bg2 Qhh2 Bfe4 Kg4 Bhg6 Re3 Bgf5+ Kg3 Bgh3 Rc3 Bc2 Kf3 Bce4+ Ke2 Bh7 Nc5 Bhg2 Qh5 Nf6 Ne6 Bc6 Rg3 Nd5 Qh3 Bge4 Qhg2 Rh5 Q2h2 Bg2 Rdd3 Rh4 Rdf3 Bg6 Rf6 Bf5 Rd1 Rh5 f1B Bgh3 Kf3
4bQ1N/2rpB3/bbR1nnN1/q2k4/3n1B1R/3RQ2P/2BNR3/qR1Krr2 w - - 0 1 illegal: No possible last move, all moves rejected
k1N2Q2/2pb1Q2/6rP/r1nR4/Q1bB1q1B/r2R1R1K/2qN2R1/2q1RnbB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 f5 h4 g5 b4 a5 d4 a4 e4 f3+ Kh3 a3 b6 f2 d6 Kc6 d7 Kb7 e5 a2 h6 f4 h7 f3 b5 Ne7 d5 Bg7 h5 Qf8 e6 Qf6 d8R Bd7 d6 Ng8 h6 Qc3 Rh2 Bc8 d7 Qe5 e7 Qd4 e8Q Qe5 Qa4 Ne7 Qf7 Qc3 Ne2 Nd5 Bg2 f1B Nd2 f2+ Ng3 Rg8 h8B Qc2 Nge4 Ra5 Nd6+ Ka8 Rb1 Bf8 Bd4 Bc4 Bh1 a1R Rg2 f1Q Bcb2 Na6 Re1 Ne3 b7+ Kb8 Bf6 Rg6 Bbd4 Nc5 Be7 Ka7 b8R Qf4 Bef6 Nf1 b6+ Ka6 b7 Ka7 Re3 Ra3 Rf3 Bg7 Re8 Bh8 Re6 Bg7 d8R Bd7 Rd3 Bh8 Rf8 Bg7 Rbd8 Bh8 Nc8+ Kb8 Be7 g4+ Kh4 g3+ Kh3 Be5 Bh4 Bg7 Re2 g2 Re1 Bdb5 R6e2 g1Q Rd5 Be5 Rg2 Qge3+ Nf3 Qec1 Nd2 Bd7+ Qe6 Qg5 Rff3 Bh2 Qf5 Bg1 Qe6 Be8 Qf7 Qf4 Nb6 Ka7 b8Q+ Ka6 Qd8 Ka7 Nc8+ Ka8 Qd6 Bc6 Qdf8 Bd7+
1qb3N1/2Nnrkr1/3R1N1b/N4RB1/1n1rB1nn/6p1/3BNnRP/K3QQ2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 g5 d4 c5 Kd2 e5 Kc2 a5 Kb2 a4 f4 e4 d6 g3 d5 g2 d7+ Kf7 b6 c4 f6 g4 d6 e3 b7 e2 b5 e1R b6 g3 f5 Qe8 d8B Qd7 Nd2 Qc6 d7 Re4 Nb3 Re1 Na5 Re4 Bd3 Rh5 Bd2 Rd4 Ra2 a3+ Ka1 c3 Ne2 g1N Qe1 c2 Be4 Nf3 Rf1 Na6 b8N c1N b7 Qc4 Nbc6 Rh3 b8N Nh4 Ne7 Nh6 Ng8 Nb4 Na6 Qb5 Nc7 Ng4 Be7 Bg7 d8R Qb8 Rd6 Bh6 Rc2 a2 Bd8 Kf8 f7 Ncd3 B8g5 Ra7 Rf4 Kg7 f8N Kf7 f6 Ndf2 Nh7 Rb7 Rf5 Ra7 Kb2 a1N Kb1 Nb3 Ra2 Nc1 Ka1 Ncd3 Rb2 Nde5 Ra2 Kg6 f7+ Kg7 Nhf6 Nd7 f8Q+ Kg6 Qe7 Rb7 Qe5 Kf7 Qf4 Rb5 Qf3 Re5 Qfh1 Re7 Qhf1 Ng6 Bh1 Rh5 Be4 Nh4 Bgf4 Rg5 Rb2 Rg6 Bg5 Rg7 Bdf4 Nge5 Nc1 Nh1 Rg2 Ng4 Ne2 Nhf2 Be3 Qa8 Bd2 Qb8
2RB1Qb1/3Q4/3B2r1/P1b1B1bb/B4NrR/q2NpB1K/4n1Nb/nR1r2k1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 h4 Kf7 f4 Kf6 Kf2 e5 Kg3 g5 a4 b5 d4 c5 d6 c4 d5 c3 a6 e4 a5 c2 h5 b4 a7 b3 h6 b2 h7 Nc6 d7 Qe7 d8Q Nb4 d6 Be6 d7 Nh6 Ne2 Rg8 h8R Rg6 Bh3 Bg8 Na3 b1B Nc4 Rc8 Kg2 g3 a8B g4 Ne5 Rc4 Bb2 c1B Nd3+ Rd4 Qc8 Nc2 d8B Be3 Ra4 Na1 Qd2 Bba2 Rb1 Baf7 Qd7 Be8 Rc4 Bef7 Qb4 Be8 Rc8 Bef7 Kh1 g2+ Kh2 g1R Bf1 g3+ Kh3 g2 Qb8 Ng4 Rh4 Nh6 Bc6 Rg4 Ba4 Bh5 Qb4 Nf7 Qb8 Nh8 Qa8 Ng6 Bc3 Kg7 f6+ Kh6 f5 Kg5 Nef4 Qa3 Be2 Bc5 Bf3 Rd6 Be5 Rd1 Qb8 g1B Ng2 Bh2 f7+ Rf6 f8B Bef4 Bdc7 e3 Bfd6 Re6 f6 Kf5 f7 Bg5 Be2 Ke4 f8N Rf6 Bd8 Re6 Bf1 Rf6 Ne6 Kf3 Nef4 Re6 Nb4 Kf2 Be2 Kg1 Bf3 Nf8 Qdb7 Rg6 Nbd3 Ne6 Qg7 Nd4 Qbc7 Qb3 Qcd7 Qa3 Qf8 Ne2
b5N1/2QNQ3/2bK1bNP/1RbN4/2rnN3/1nrq2Q1/k1br2p1/2RBB1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 g5 h4 a5 b6 f5 d6 c4 d7 a4 b7 f3 d5 g4 h6 a3 h7 f2 d6 c3 h5 f4 h6 f3 Qe1 Kb3 Nd2+ Kb4 Be2 f1B Qg3 a2 Nh3 f2 Bd1 c2 Nf4 Bd3 Rg1 f1B Nd5+ Ka4 b4 Ne7 b5 Rg8 h8N Nf5 b6 Na6 b8R Bb7 Ng6 Bc6 b7 Nd4 Ba3 Bg2 Rc1 a1B Bb4 Nc5 Bc3 Qa5 d8Q Ka3 d7 Qb5 Qe7 Ra4 d8Q Ka2 Qdc7 Rc4 Kd6 Ncb3 e5 Bge4 e6 Bh1 Qh4 g3 Ne4 Bf3 Qf4 g2 Be1 Rh8 Qg3 Qa6 Rb1 c1R Rc8 R4c3 b8N Bc2 Nd7 Qd3 Rb8 Ba8 Rb5 Rc4 Be2 Rd1 Rc1 Rd2 Bd1 Bg7 Qe8 Bf6 e7 Rg8 Qf7 Rc8 e8N Rc3 Qe7 Bb2 Qcd8 R8c4 Qc7 Ba3+ Nec5 Bg7 Nef6 Bb4 Ng8 Bf6 Ndf4 Bfc6 Nd5 Ba5 Ne4 Bb6 Nb8 Ba7 Nd7 Bc5+
1R1NknB1/3N3b/b3nPN1/4BR2/1n3N2/nrRq3N/rB1bp1QQ/3n1K2 w - - 0 1 illegal: No possible last move, all moves rejected
R4Q1K/qNb1Q2n/5P1n/N2rRQ2/BNb1p3/B1B1N3/2n2b2/2nnr1Nk w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 a5 f4 c5 d4 e5 b4 h5 g4 a4 b6 c4 f6 a3 b5 h3 f5 c3 f7 c2 b7 h2 b6 h4 g5 h3 f6 a2 g6 Nc6 b8B+ Qc7 g7 Bd7 b7 Ra6 Nd2 Ra3 Qg4 Nce7 Bb5 Rd3 Qf5 Ng6 Ba4 Nh6 g8N Bb5 Nb3 Bc4 Na5 Be7 Bb2 c1B f8Q Be3 Bc3 Bf2 Ba7 Rd1 b8N Rc1 Bb6 Qa7 Nbc6 Rh7 Nb4 Re1+ Ne2 Rh8 Rg1 h1N Rg5 h2 Bc5+ Kc7 Rh5 Bd8 Be7 Kb6 d6 Bc7 d5 Rh7 d7 Ng3+ Kf3 h1N d8N Rh8 d6 Kc5 Ng1 Ne2 Rg5 Nc1 d7+ Kb6 Ndb7 e4+ Kg2 Rh7 d8Q Rf7 Bd6 Rd7 Qde7 Rd8 Kh3 Rd7 Rb1 a1N Rh5 Nc2 Ra1 Be3 Ra2 Nf2+ Kg3 Nd1 Kh3 Ne5 Kh4 Bf2+ Kg5 Nf3+ Kg6 Ng5 Kg7 Nh7 Kh8 Rd8 Na6 Rd7 Ba3 Rd4 Nb4 Rd5 Nd6 Ng4 Nh6 Kc5 Nhf7 Nh6 Ne5 Nd3 Ng4 Nc1 Bd2 Kd4 Ndb7 Bd6 Ne3 Bh2 Na6 Bc7 Bc3+ Kd3 Nh3 Ke2 Nb4 Bf4 Ra1 Kf3 Ng1+ Kg3 Qfd7 Bc7 Re5 Kh2 Qf5 Kh1 Ra2 Na1 Rd2 Rb5 Rd8 Rd5 Ra8 Nc2
1BQ1nR1K/2B1r3/1NP5/RB3qbN/1R1n3r/2kBB1Q1/n1bn3p/4N1bn w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 c4 h5 f4 h4 b4 d3 g4 h3 c5 h2 f6 Ke6 f7 a4 f5+ Ke7 g6 Kf6 g5+ Kg7 b6 d2 b5 a3 b7 a2 b6 Rh4+ Qg4 d1N Bb5 Ra7 Nf3 Be7 f8R Nc6 b8B Nd4 b7 Qa5 c6 Nf2+ Kd5 d6 Nbd2 e4 Nc4 e3 Ne1 e2 Be3 Bd7 Rf1 Nh1 Rf4 Be6+ Ke4 d5+ Ke5 Nf6 Nb6 Ne8 Bc7 Bg8 b8B Bh7 Qg3 Bd8 Rb1 a1N Rb4 Nab3 Ra4 Nd2 Bd3 N4b3 Rfb4 d4+ Ke6 Qc5 Ra5 Qc2 Bb5 d3 Ke5 Ne4 Ke6 d2 Ke5 d1N Bd3 Nd4 Bb5 Bg8 f6+ Kh8 f7 Kg7 Bd3 Ndc3 Bb5 Na2 Bd3 Kh8 g7+ Kh7 Bb5 Kg6 Bd3 Bh7 g8N Kg7 g6 Bg5 Nf6 Nd2 Bb5 Nf5 Ke6 Nd4+ Ke7 Qf5 Bd3 Kh6 g7 Kg6 g8B Rb7 Nc2 e1B Bb5 Bf2 Ne1 Qc2 Bd3+ Kg7 Bb5 Be4 Bh7 Qb1 Bf5 Bc2 Bfd3 Bg1 Rh8 Ne4 f8Q+ Kg6 Rg8+ Kf5 Kf7 Ra7 Nh5 Rb7 Bdc4 Nd2 Rh8 Ke4 Kg8 Ng7 Qc8 Ne8 Kh7 Ra7 Rf8 Rb7 Nd3 Qf1 Ne1 Qf5+ Kh8 Ra7 Bcf4 Re7 Bfc7 Ne6 Bef4 Kd4 Be3+ Kc3 Bd3 Nd4
Kb2nb1k/R1Q2p1N/6P1/5qb1/B1R1QBn1/rR2r3/B1r1N1Bb/1b1B2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 a5 Ke3 c5 Ke4 h5 b4 h4 g4 c3 d4 c2 e6 c4 g6 h3 e7 h2 g5 a4 d5 a3 d6 c3 Kd5 a2 e4 Nd7 Kc6 Ndf6 b6 Rh3 g7 Rh5 b5 Nh6 g8B Nhg4 e5 Ra3 b7 Rb3 b8R Rh8 b6 Rh6 b7 Rb5 Bh7 Qa5 Bg2 Ng8 Bf4 c1B Qd3 c2 Nc3 Qa3 Qe4 Rf6 Nce2 Qd3 Bf5 Re6 g6 Rf6 Be6 Ra5 Kb6 Rc5 Ka7 Rf5 Bc4 N8f6 Ka8 Rh5 Bd5 Rh3 Bb3 Re3 Bc4 Kd7 e8B+ Kd8 d7 Ke7 d8N Bf5 Bd7 Ne8 e6 Kf6 e7 Kg7 Ne6+ Kh8 Ng5 Bb2 Nh7 c1B Bce6 Rc2 Ba4 Be5 Rc8 Bd6 Rc4 Bb8 Rb1 a1B Rb3 Bae5 Bd5 Ba7 b8Q Bd6 Qc7 Bb8 Nh3 Bd2 Ra1 h1R Nhg1 Rhh3 Be6 Bc3 Bd5 Bf6 Ra2 Bg5 Raa3 Nef6 e8B Be5 Bec6 Ne8 Rb6 Bd8 Bb3 Nd6 Qf3 Rd2 Ra7 Qb1 Re4 Red3 Bg5 Bh2 Bf4 Bg5 Bd1 Ne8 Bca4 Ra3 Ba2 Rb2 Qd3 Re3 Rb3 Qc2 Reb4 Qc5 Qc4 Bb1 Qe4 Rc2 Rc4 Qf5
1Q1R1b2/1BNbPnK1/n3N1n1/nr4QQ/R7/5r1p/1RR1rn2/1RNqk1B1 w - - 0 1 illegal: No possible last move
qR2R1B1/bprn4/1Q1BR1N1/2N2Q1b/N2K1N1b/2Pbr1N1/5r2/k2n1Bb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 a4 Ke5 h4 d5 f4+ Kf6 c6 e5 a5 g5 h6 d4 h7 g4 a6 g3 a7 g2 h5 b3 c7 b2 h6 Qd6 Nc3 b1B Ra6 Be6 c8B Bf7 Ba3 Nd7 Na4 Qb6 Bd6 Qa5 Ne2 g1B Ng3 Ne7 Qc1 Bg7 Qb2 Bh5 Qb6 Rf8 h8N Nd5 h7 Ne3 Ng6 Nd1 h8N e4+ Kc4 d3 c3 e3 Kd4 d2 Rh4 Rb8 a8R Bd3 Rh2 Bh6 Re2 Bg5 Re1 Bh4 Re2 Nc5 Bd7 Rbe8 Be6 Nd7 Bg8 Rc8 Rb8 Rc7 Raa8 Rf7 Re8 Re7 Rab8 Qa8 Nf8 Rf7 Ne6 Re7 Ng6 Rf7 Rf2 e2 Nec5 e1B Re6+ Kg7 f6+ Kh6 f5 Kg5 Nf4 Re7 Re2 Re3 Rg2 Bef2 f7 Kg4 f8N Kf3 f6 Nb2 f7 d1R Re1 Rd2 Rc8 Nd1 Rb8 Re8+ Kd5 Re4 Qa6 Bg6 Nb3 Be3 Rge2 Ba7 Nbc5 Bh5 N8g6 Re8 Re4 Rf2 f8Q Re6 Qf5 Re8 Rc4 Ree2 Qb5 Ke3 Re4+ Kd2 Ree8 Kc2 Kd4 Re6 Qa6 Kb1 Qb6+ Ka1 Re2 Re3 Re1 Ref3 R1e6 Re3
1nN3nr/p1bQ1n2/1R1BB1r1/1rQ5/2b1QQQ1/5rPN/k1B1KNRq/7r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 b4 Kd6 d4 f5 e5+ Kd7 g6 h5 e6+ Kd6 g7 c5 e7 f3 e8N+ Ke7 d6+ Ke6 d7 Kd5 g3 f2+ Ke2 Kc4 b6 h4 d5 f4 b5 h3 b7 h2 b6 Qc7 d8Q Rh7 d6 Nc6 b8Q Bd7 b7 Be6 d7 Bd6 Ba3 Rh5 Qbc8 Nb8 Ra2 Rh8 Bg2 f1R Qe7 Rf3 d8Q Qd7 Bf1 Bc7 Nc3 Qa4 Q1d6 Kb3 Nh3 c4 Ne4 c3 Qc5 c2 Nef2 c1R Rg1 h1R Qdd7 Rb1 Nd6 Qb4 Rd2 Bc4+ Rd3+ Qc3 Rg2 Ka2 Qe4 Rb5 Qg4 Qe5 Qcd7 Qh5 Nc8 Rh6 Bb4 Rg6 Ba3 Nh6 g8B Nf7 Ng5 Qh2 Ngh3 Ng5 Be6 Nf7 Nb6 Na6 Bb4 Rh8 Nc8 Nb8 Ba3 Bb3 Rd6 Bc4+ Kd2 Re3 Ra6 f3 Rb6 Reb3 Bd3 Rc3 Nd1 f2 Ke2 f1N Ndf2 Ne3 Bb4 Nd5 Ba3 Nc6 b8Q Nf6 Bb4 Ng8 Ba3 Bd8 Qbf4 Bc7 Bb4 Nb8 Ba3 Bb3 Bc2 Rd3 Qce5 Bd5 Bd6 Bc4 Qc5 Rf3+
Nb3r2/3b1Qr1/3k2n1/N1N3nr/1BK2n1N/RQP1bn1N/1B5p/R1q2BR1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 e5 b4 Ke7 f4 h5 g4 d5 c3 a4 f6+ Kd6 b6 h4 g6 a3 f5 a2 g5 h3 f7 h2 b7 Bh6 f8N Ne7 b5 Bd7 b6 Nbc6 g7 Ng6 b8N Rh7 g8Q Rg7 f6 e4+ Ke2 e3 Kd3 e2 f7 e1B b7 Bd2 Qb3 Bf4 Nd2 Qb6 Na6 Nce5+ Ke2 Qa5 b8N Qa3 Nc5 Nf3 Nh3 Bg3 Bb2 d3+ Ke3 d4+ Ke4 Bf4 Nfe6 Be5 Nc6 Rf8 Rg1 Bf4 Rc1 a1R Na5 Ra2 Ra1 Be5 Nb1 d2 Kd3 d1N Nc7 Ne3 Na8 Ng2 Kc4 d3 Nd2 N2f4 Qh7 Ke7 Qg8 Bb8 Qh7 Kd6 Qg8 Ne1 Nf3 d2 Nh4 d1N Qh7 Nf3 Qg8 Ne7 g6 Nf2 Qh7 Ne4 Qg8 Rd8 f8B Neg5 Qf7 Re8 Bc1 Rg2 Bb2 Rh7 g7 Rc8 g8R Rg3 Bg7 Neg6 Re8 Rg2 Ree1 Rf8 Ra2 Rg4 Rea1 Rhh8 Bc1 Qb2 Ra3 Qd2 Bb2 Qc1 Bd4 Rh7 Ng2 Rh4 Bf6 Rh5 Nh4 Bg7 Bd8 Bd4 Bf6 Be3 Be7+ Ke5 Ne6 Rg7 Bb4 Ne4 Nc5 Kd6 Qa4 Neg5 Qd1+ Ke5 Qb3 Kd6
4B1b1/5rR1/1Q1Qb3/1nNQ1n1k/BnKB1p1r/3P2br/N1QRn3/2qRQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 g5 h4 c5 e4 a5 Ke2 f5 Kd3 Kf7 e5 f3 e6+ Kg7 d6 Kh6 b6 a4 b7 f4 d7 f2 b5 a3 b6 a2 e7 g4 e8B g3 Nf3 g2 Ne5 g1N Rh2 Bg7 Kc4 Qf6 d8Q Nf3 Qc2 Nd4 Nd7 Qd6 Bb2 Qe7 Nc3 Na6 b8Q Nb4 b7 Bf6 Rd1 a1R Qd6 R1a3 b8Q R8a7 Qbb6 Qe1 Na2 Nb5 Bd4 Rh3 d3 Ne7 Bg2 f1B Bc6 Nf5 Rhd2 Bg2 Q8e7 Qh1 Qe1 Rh7 Nf8 Raf7 Ne6 Nc7 Ba4 Bd5+ Kc3 c4 Nc5 Kg7 h6+ Kg6 h5+ Kg5 Qdc6 Bce6 Qd6 Rh8 h7 Nb5+ Kb2 Be7 h6 Kg6 Qc3 Bh4 Qc2 Bc6 Qd5 c3+ Kb3 Kh5 Kc4 Ba8 Qd6 Bg3 Qb6 Rg8 h8R Rg4 h7 Rgh4 Rg8 Qg1 Qb3 c2 Rg7 c1N Qc2 Bb7 Be5 Ne2 h8Q+ Nh6 Qf8 Nf5 Bd4 Bbc8 Qfd6 Qh1 Qf2 Qf1 Rb1 Qc1 Qe1 Qb2 Rc1 Bed7 Rcd1 Qc1 Rg6 Rf6 Kb3 Bc6 Qdc4 Bd5 Rg7+ Bf7 Qcd5 Be6 Rg6 Bg8 Kc4 Rf8 Rg7+ Rf7
3q1Q1n/1KR2NB1/1rBN1Br1/4N3/2P1p2B/R5Bb/2rQn1bn/1Q2b1nk w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 b4 d6 h4 g4 c4 a4 b6 d3 h6 g3 h5 a3 b7 g2 h7 d2 b5 a2 h6 Bd7 b6 Nc6 b8B Nd4 b7 Ra6 Nf3 g1N Nc3 Nde2 Nb5 e4 Bh3 Bc8 Ne5 Be7 Qe1 d1N Qd2 Nf2 Bc7 Bf8 b8Q Ng4 Qb6 Bg7 Kc6 d5 Nd6 d4 Rh2 Bd7+ Kb7 d3 Qb1 Ne7 Bb2 Rg8 h8N Bf8 h7 Ng6 Nhf7 Nh8 Bd4 Be6 Bf2 Rg6 Bb8 Bh6 Bh4+ Bg5 Rh1 Nh2 Bg4 Nc3 Bd1 Nce2 Ba4 Bd7 Bc6 Be6 Qdc2 d2 Qcb2 d1B Qd2 Ng4 Rh3 Nh2 Ra3 Bd7 Ba7 Be6 Baf2 Bd7 Bfg3 Be6 Qbc2 Bd7 Rb1 a1R Rb6 Be6 Qb1 Ra2 Rbb3 Rc2 Rb5 Bd7 Rc5 Ke7 f6+ Ke6 Ba4 Bh6 Rc7 Bf8 Bc6 Be7 Ne8 Bb4 Ned6 Ba5 Nh6 Bb4 f7 Bc3 f8B Bb4 Qe3 Ba5 Nhf7 Be1 Nc8 Kf5 Qd2 Be6 Bg7 Bd7 Nd3 Kg4 f5 Kf3 f6 Kg2 Ncd6 Bh3 Nde5 Ngf3 Ng5 Ng1 f7 Kh1 f8Q Nc3 Bf6 Bf3 Ngf7 Bfg2 Ng5 Nf7 h8B Nce2 Bhg7 Nh8 Ngf7 Rb6+
1k3rNN/rn2nr1b/2Q3NN/1R1BrpK1/2P1qB2/b1Q2b2/N3R3/2BnQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kg3 g5 c4 a5 b4 d5 e4 Kd7 h4 Kc7 b6+ Kb7 b5 a4 e6 a3 e5 a2 e7 d3 e8Q d4 h6 d2 h5 d3 h7 g4 Kf4 g3 h6 g2 e6 Qd5 e7 Qc5 Ne2 g1R Rh2 Ra4 Bg2+ Qc6 Qe1 d1N Kg5 d2 Nf4 Ne3 Nc3 d1B Rb1 a1R Ng6 Rf1 Bd5 R1a2 Re2 Rc2 Na2 Nd7 Rb2 Kb8 b7 Nc5 Qd7 Ra5 e8N Be7+ Nf6 Rh1 Rb4 Qe6 Qc6 Ra7 Rb3 Bf8 Rb1 Ne7 Ng8 Qe4 Rb4 Ra6 Rb2 Be6 Rb4 Ka7 b8N Rd2 Nd7 Nb7 Ndf6 Kb8 b6 Ra7 Ng4 Rb2 Rb5 Rg1 Rg2 Bf3 Rh2 Nd1 Re2 Nd8 b7 Rb3 Rg2 Re3 Re2 Rg2 Nf6 Rg8 h8N Rg7 h7 Bg8 Qb4 Rh2 Nh6 Rf7 Qe1 Nc8 Qe6 Ba3 Qa6 Ne7 Qa4 Kc7 b8B+ Kc8 Bf4 Nb7 Qa6 Rf8 Ne5 Kb8 Qc6 Qd4 Neg6+ Re5 N8f7 Qd3 h8Q Bh7 Nfg8 Qe4 Qhf6 Rh3 Nfh8 Rh2 Re3 Rd2 Re2 Rd3 Bf7 Rd7 Bd5 Rc7 Qg7 Re6 Qa1 Re5 Qac3 Nc8 Bfe3 Rcf7 Bf4 Ne7
R1rr2Rq/1R1n1N2/bbnB2Q1/B3PQ2/2k1KnB1/3p2Nb/5BrB/2N1b3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 h4 Kd5 c4+ Kc5 e4 f5 b4+ Kb6 h6 d5 e6 a5 h7 g5 h5 d3 h6 d4 c5+ Ka7 c6 Kb6 c7 a4 e7 a3 e8R d2 Nc3 d3 Bh3 a2 Nce2 f4 Ng3 Bc5 Bg4 Qd7 N1e2 Qg7 Qg1 d1N Bd2 Nb2 Nc1 Ba6 c8Q Na4 Qf5 Ne7 Rg8 Nec6 Be1 Qd4 Bf2 Nc3 Rb1 a1B Rh2 Kb7 b6 Ne2 b5 Bc3 Rg2 Nd7 Re8 Ra7 Ra8 Rc8 h8N Be1 Nf7 Qh8 h7 Rd8 Rc8 Ra8 Rb4 Qg7 h8B Qg8 Bc3 Qh8 Rb1 Be3 Ba5 Bc5 e5 Be3 Ke4 f3 Rb3 Nf4 Rb2 Rb8 Rb3 Ka8 b7+ Ka7 Rb4 Bb6 Rb3 Ra8 b8B+ Kb7 Bd6 Rb8 Bd4 f2 Be3 f1B Bf2 Ka7 Rb1 Rb7 Rb4 Rc7 Ra8+ Kb7 Qh2 Rcc8 Qhh7 Bc3 Bdc5 Be1 Qhg6 Kc7 Rg1 Bh3 Rg2 Kb7 Bg1 Kc7 Bcf2 Kb7 Bh5 g4 Bh2 Be3 b6 Bc5 Nf1 g3 Bg4 Bd4 Rg1 g2 Ng3 Bc5 Rf1 g1R Rb1 Rg2 Rg1 Bd6 Rb3 Bb8 Rb4 Ba7 Rb3 Bc4 Rb2 Ka6 b7 Bb5 b8B Bc4 Bd6 Bb5 Rb8 Bb6 Ra2 Bc4 Ra8+ Kb5 Rb2+ Bb3 Rb1 Kc4 Rb2 Ba4 Rb3 Bb5 Rb1 Bc5 Rb2 Ba6 Rb7 Be3 Nh1 Bb4 Qgh5 Ba3 Be2 Rg7 Rg6 Bb6 Rg4 Rh7 Rg8 Rg7 Qhh7 Rg2 Ng3 Bb2 Bg4 Bc3 Qhg6 Be1
q5RQ/1nK3RB/1Pn1p3/1Q1R2RB/rb1bb2r/NQNn3k/5B2/3R1r1b w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 a5 Kf4 c5 Ke5 h5 b4 e6 g4 a4 d4 h3 f4 a3 g5 h2 f6 h4 f7 a2 d6 h3 f5 c4 d5 c3 b6 c2 b5 Rh5 b7 Rh7 f6 Rh4 g6 Rh6 g7 Rh7 Be2 Ra5 Be3 c1N Bh5 Ra7 Bf2 Qe7 Ne2 Qe8 Qb3 Be7 f8R Ra3 f7 Ra4 Na3 Rh8 Nc3 Na6 b8Q Bb7 Rg1 h1R Rg5 h2 Rb1 a1B b6 Na2 Rd1 N2b4 Qa8 Nc5 Qa6 Bc6 Qb5 Qa8 Rc8 Rg1 f8R h1B Rf7 Nb7 Rcf8 Rf1 Rb8 Nh6 g8B Nf5 Rfg7 Nd4 Re8 Rh6 Bh7 Bb2 Reg8 Ba1 B5g6 Rh4 Bf7 Bf8 Bh5+ Kd8 d7 Be4 R7g6 Ke7 d8R Bh1 d6+ Kf7 d7 Bce4 Rg4 Ke7 R6g5 Ndc6+ Kf4 Kf6 R8g7 Ra6 Rgd5 Be7 Rdg8 Ra4 d8Q Bb2 Rgg5 Ba1 R8g7 Bb2 Qh8 Nd3+ Ke3 Bb4 Rg2 Na7 Kd4 Nc6+ Kc4 Ba1 Rg8+ Ke7 R5g7+ Kf6 R2g5 Bb2 Ncb1 Be5 Nc3 Bd4 Rg2 Be5 R2g6+ Kf5 Rg5+ Kf4 Qc5 Bd4 Kb5 Nce5 Qcc4 Ng4 Kc6 Nge5+ Kc7 Nc6 Be8 Kf3 Qb5 Kf4 Bg3+ Kf3 Bh5+ Kg2 Bf2+ Kh3
bQ1r4/nBNn1p1P/3b2k1/1b1n1N2/2Rq2n1/B2Q3N/1R2QN1r/KN2r2R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 d4 c5 Kd2 g5 Kc2 c4 e4 a4 b4 g4 Kb2 f3 d6 f2 b6 g3 e5 g2 b7 Be6 d5 Bd7 e6 Ra5 h6 Bc8 b5 Qg5 d7+ Ke7 d8N Kf6 h7 Kg7 d6 Nc6 b8Q Qf4 d7 Qf5 h5 Bb7 h6+ Kg6 e7 Na7 e8N Bd6 b6 Ne7 Nh3 g1R Nc6 Qc5 d8Q Nd5 Nc7 Ba8 Bg2 f1B b7 a3+ Ka2 c3 Nb4 c2 Qe2 Qd4 Nd3 Re8 Ndf2 Rb5 Qd7 Rd8 h8R Rb3 h7 Rd3 Re8 Rd2 Rh2 Rh1 Re4 Rd1 Rf4 Re1 Rh4 Qe3 Rc4 Qd4 Kb3 a2 Ba3 c1N+ Kc2 Qe4+ Kb2 Nb3 Qb5 Nc5 Qb3 Rf8 Qbd3 Rd8 Qdd2 Qe7 Qe6+ Kg7 Re4 Rh8 Qd8 Re2 b8N Be5+ Nc3 Nf6 Nd3 Kg6 Nc6 Qd6 Qb8 Rd8 Nd4 Nd7 Nf5 Rg1 Rb4 Qd4 Bb7 Bd6 Rc1 a1N Rh1 Rh2 Ndf2 Ba6 Qd3 Nc2 Qee2 Ne3 Ka1 Re1 Rb2 Nfd5 Nb1 Ng4 Rc4 Bb5
k6B/p1n3QQ/1PK2b1n/1B1NRrR1/B1nn3Q/Nq1r1N2/B4bb1/B2r4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 c5 b4 Kc7 g4 Kb7 d4 h4 b6 f3 g6 f6 b5 f2 d6 f5+ Kd5 h3 e4 f4 d7 c4 g7 h2 g5 c3 e5 c2 e6 f3 e7 Nc6 e8B Qe7 d8N+ Kb8 g6 Qe3 b7 Rh6 Qd3 Qd2 Na3 Bc5 Bb2 c1B Ne6 Be7 Nf4 Kc7 b8B+ Kb7 b6 Qb4 Be5 Be3 Re1 Rh5 Ba1 Nh6 g8Q Bf6 g7 Bh3 Qdh7 Rf5 Bb5 f1N Qgh8 f2 Nf3 Qa4 Rg1 h1R Rg5 Nd2 Re2 Rb8 g8B+ Ka8 Q8g7 f1N Kd6 Rc8 Ba2 Qb3 d5 Bg2 Beb2 Bf2 Re5 Rg1 Kd7 Rb8 d6 Ne3 Nd5 Nd4 Kc7 Rf1 d7 Rd1 d8Q Ndc4 Ba4 Rd3 Beb5 Rd1 Qde7 Rd8 Qb4 Ne6+ Kc6 Nc7 Qe1 Nc2 Qe4 Rd7 Qh4 Nd4+ Kc5 Bh1 Nb4 Ne2+ Kc6 Be7 Re3 Rc1 Qe5 Rd3 Nd5 Rcd1 Qeh8+ Bd8 Bg7 Bg2 Re5 Kb8 Qf8 Ka8 Qf6 Be7 Bh8 Bd8 Qfg6 Bf6 Qgg7 Nd4+
K2b1k1N/B2qb3/q2Bq3/p6q/RB1nN1QB/P6r/4BN2/Qr2nQqR w - - 0 1 legal: proof: g4 c5 e4 f5 b4 g5 bxc5 d5 gxf5 g4 h3 g3 Ba6 Be6 Be2 dxe4 Bf1 Bf7 Qg4 Bh5 Qd1 Bg4 hxg4 Qd7 Rh5 Qd5 Rh1 Qd8 Ke2 h5 Ke3 e5 c4 a5 f4 b5 d4 g2 c6 b4 d5 b3 c7 b2 c8Q h4 f6 h3 c5 h2 c6 Rh4 f5 Bh6+ g5 Na6 d6 Rg4 c7 Bf8 g6 Rf4 g7 Nb8 d7+ Kf7 Nc3 b1Q Be2 Ra6 Nh3 g1Q+ Nf2 Nc6 Qf1 Qe8 d8B Nge7 g8N Ng6 Ne7 Nh4 Ng6 Be7 Nh8+ Kf8 f7 Nd4 Qe6 Qeb5 c8Q Qd7 Qf6 Rb6 Ba3 Rb8 Bc5 Nhf3 Ba7 Rh4 Qc4 Qbb5 Qa4 Rh7 Qe6 Bb4 Bh4 Be7 Qg6 Qa6 Qg4 Ne1 Qd1 Bf6 Qc1 Rb1 Qb2 Ke7 f8B+ Ke8 Bfc5 Be7 f6 Kf8 f7 Rh6 Bd6 Rh5 Na4 Rh6 Nc5 Rh5 Kd2 e3+ Kc3 e4 Qa3 Rf5 Qb2 Rf3 Qc1 Rh3 Qa3 Rb5 Kc4 Rb8+ Kd5 Rb1 Bc4 e2 Qa4 e3 Nce4 Nef3 Qa3 e1B Be2 Bc3 Qb2 Ne1 Kc5 Qc4+ Kb6 Qce6 Ka6 Bb4 Qa3 Bc5 Qc1 Bb6 Qb2 Bc7 Kb7 Bd8+ Ka8 Qf6 a3 Qg6 Ra2 Qh5 Qa1 Qhb5 Rb2 Qa6 Bf3 e2 Rb4 Nec2 Rc4 e1Q Ra4 Qe3 Be2 Ne1 Nc3 Qee6 Nce4 Qg3 Rg1 h1Q Bb4 Qhf3 Rh1 Qff5 Bd6 Qfg6 Bb4 Qg1 Bd6 Kg7 f8B+ Kg8 Bh6 Qg5 Bb4 Qgg6 Bf4 Kf8 Bfd6 Qh5
2nQ1Rqr/n3RK1k/4n1pB/Pn3b2/1R1nBb1N/Q5Rq/N5Q1/3B1r1R w - - 0 1 illegal: No possible last move
1b2bB2/1B1q1P2/3B4/NR1RpN2/k1B5/1r1Qq1Qb/1R2b1rN/1B1bnnK1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 b4 h5 f4 d5 Kf2 Kd7 g4 a4 c5 d3 c6+ Kd6 f6 e6 c7 d4 f7 h4 g6 d2 f5 h3 f6 d3 g5 a3 g7 h2 b6 Kc6 g6 Kb5 b7 a2 Nf3 Na6 b8Q+ Bb7 c8B Nh6 g8N Qe7 g7 Nc5 Qg3 e5 Ba3 Bc6 Bb7 Nf5 Nh6 Rb8 g8B Be8 Bh7 Ne3 Nf5 Qd7 Bg6 Be7 f8B Bd6 f7 Rg8 Qe2 d1B Nbd2 Ka4 Nb3 d2 Rb1 a1Q b5 Qc3 Qd3 Be2 b6 d1B Na5 Qd2 Rg1 h1B Rb2 Bg2 Nh2 Bh3 Rg2 Rh8 Kg1 Rh4 Rb5 Rf4 Bb4 Rf2 Bh7 Nb3 Rd5 Na1 Bc5 Bc7 Bcd6 Nac2 Qc4+ Nb4 Ng7 Bh5 Ba8 Rf3 b7 Qe1 Rc2 Rf2 Rb2 Qc3 Be2 Nf1 Bb1 Qe3 Nf5 Bf3 Qc3 Nc2 Bc4 Ne1 Qd2 Bfe2 Qd3 Rd8 b8R Rc8 R8b5 Rb8 Rbc5 Rb3 Rb5 Bb8 Bb7 Rg2+
6n1/bk2pB1N/n2Q2q1/Q1n3qn/Qr1Bb1nR/4P3/QKN2R1r/3QR1B1 w - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 d4 Kd7 Kd2 a5 Kc2 f5 h4 c5 b4 Kc7 g6 c4 g7 a4 d6+ Kb7 h5 f4 b6 g3 b5 g2 d7 c3 h6 f3 d5 a3 d6 f2 h7 a2 Be3 Ra7 Nf3 g1N Ng5 Ra3 Rh4 Rb3 Na3 Nf6 g8Q Qe8 d8R Na6 d7 Kb8 b7 Kc7 b6+ Kc6 b8B Bb7 Be5 Nf3 B5d4 Qg6+ Kc1 Rb5 Nc2 Bh6 Rf8 Ne5 d8Q Neg4 Qb3 Bg7 Qa4 Ng8 Rf7 Ba8 b7 Bh6 Bh3 f1N b8Q Ng3 Qbd6+ Kb7 Bg1 Nh5 Rf2 Rb4 Qda5 Bg7 Rb1 a1Q e3 Bf6 Na3 c2 Bf1 Qc3 Bc4 Be5 Bb3 Qc5 Kb2 c1N Nc2 Bg3 Qdd8 Bb8 Qd6 Ba7 Qa2 Ra4 Bf7 Nb3 Ra1 Rb4 Q5a4 Kc8 Rb1 Be4 Qa5 N8f6 Q2a4 Kb7 Ra1 Rc8 h8Q Ng8 Nh7 Qcg5 Qhe5 Rc3 Qee6 Rd3 Qc4 Rd2 Qa2 Rb6 Qca4 Rb4 Qf3 Re2 Re1 Rd2 Qd1 Re2 Rf3 Rh2 Rf2 Nbc5+
bB4N1/2p5/3N1qQN/K2b1R1B/1nq1rR1R/3n1P1b/1k2r2b/N1NQbQ2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 e5 Kd2 a5 Kc3 h5 b6 h3 b7 a4 f6 h4 b5 h2 Kb4 h3 g5 a3 g6 a2 g7 e4 b6 e3 f7 e2 Nd2 e1B Be2 Qh4 Bh5 Bd7 f3 Qe7 Ne2 Nf6 g8N Na6+ Ka5 Be8 b8Q Qe4 b7 Bc6 Qe8 Nd7 b8Q Ne5 Qb5 Nb4+ Qa6 Rd8 Nb3 Ned3 Be3 Qe6 Qc4 Ba8 Nec1 Rd7 Rb1 Re7 Na1 Qf6 Rb2 Re4 Rg2 Bh6 f8R Bf4 Qg6 Rh7 Qb5 Rhe7 Rg4 Bfg3 Rf4 Re8 Rg1 h1B Rh4 Be5 Rg5 h2 Rf5 Bg2 Rff4 Qe6 R8f5 h1B Qc4 Bf1 Qa6+ Kd7 d6 Qc4 d5 Bhg2 Ba7 Bh3 Bb8 Re2 Re4 Bh2 Ref4 R8e4 Qb5+ Kc8 d7+ Kd8 Nf6 Ke7 d8N Kd6 Ng8+ Re6 Qa6+ Kc5 Nf7 R6e4 d6+ Kd4 d7 Kc3 d8N Kb2 Nb7 Re5+ Qb5 R5e4 Rc5 Be6 Rcf5 Bh3 Nfh6 Bd5 Nd6 Ka3 Nab3 a1Q Qa6 Qg7 Na1 Kb2 Qg1 Qh7 Qf1 Qf7 Qc6 Qg6 Qe8 Qg7 Qg6 Qf6
5N2/qp1R3R/1r2NQqr/BQ6/n2rQrk1/nQ1BP2r/b2b4/2Q1KRB1 w - - 0 1 illegal: No possible last move, all moves rejected
bqk5/b2rR1R1/5r2/Q1r1N3/qn2B2Q/n1p5/B1RPNQ1n/BrK1Q1Q1 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 g5 cxd5 b5 a4 Bg7 axb5 Bf8 h4 gxh4 e4 Kd7 b4 h5 g4 c5 g5 a5 b6 f5 e6+ Ke8 e7 Kd7 e8R f4 b5 h3 b7 a4 d6 f3 e5 a3 b6 h4 e6+ Kc6 g6 a2 d7 h2 e7 h3 g7 c4 Ne2 c3 Bb2 Ra7 Rg1 h1Q Na3 h2 Bg2 Nh6 g8B Na6 b8Q Ng4 b7 Rh5 Rc1 a1N Rc2 Nb4 Qa8 Kc7 Nc4 Rc5 Ne5 Bg7 Qc1 f2+ Kd1 Bf6 Bc6 Qe4 Ba2 h1R Bcd5 Qc4 Be4 Nh2 Qb1 Qb3 Kc1 Qa3 Bed5 Qa4 Be4 Ra6 Qa7 Rd6 Qb6+ Kb8 Qa5 Qc7 d8Q Rd7 Bc6 Qb6 Be4 Qbb5 Qdb6 Bg5 Qh6 Be3 Qh4 f1R+ Qe1 Rf3 Rg7 Bg1 Qh4 Rf2 Reg8 Rf7 e8Q Rf6 Re7 Qb6 Rg4 Kc7 Qg6 Kd8 b8Q Qc7 Qbb5 Bb7 Rg3 Kc8 Qbb6 Qb8 Qf7 Ba8 Rg7 Rc4 Qbf2 Rcc7 Qe1 Ba7 Qfh5 Rg1 Qf3 Rc5 Qff2 Nb3+ Kd1 Nd4 Kc1 Nb5 Ba1 Na3 Qb3 Rb6 Qe6 Rg6 Qeg4 Rgf6 Qgg1 Nd5 Ref7 Rb3 Re7 Nb4 Qff1 Rb2 Qff2 Rb1+
2N1NK2/2R2Q1N/qn1Bb3/B6q/1rn2qBk/bp6/Pr1RqN2/2R1NQ1n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 b5 d4+ Kh4 f4 g5 f6 e5+ d6 b3 f5 c6 d5 b2 h6 e4 f7 b4 h7 b3 f6 e3 Nf3+ Kg4 h4 e2 h5 e1Q h6 Qee7 Be2 Qee8 Qf1 Bb7 Nc3 b1N Ne1+ Kg3 Bg4 Qc7 Ba3 Qce7 Nd1 Qe2 Nf2 Ne7 d7 Bc8 Kd6 c5 d8R Nd2 Rc1 c4 Bc5 Rg8 h8N c3 h7 c2 Ng6 Ra4 h8N Nd7 Rh7 Nb6 Bb4 Be6 Ba5 Bh6 f8Q Rb4 Qf7 Bf8 Rd7 Qc8 Rh2 Qca6 Rc7 Nc6+ Ne7 Ne5 Ng6 Nd3 Ne5 Rh8 Nc4 Rh3 Rg2+ Kh4 Rh2 Bg7 Rg2 Rh2 Nc8 Bh6 Ke7 Bf8+ Ke8 Bc5 N4d6 Ndc4 Nfe4 Nf2 Kf8 Nh1 Nf2 Bd4 Ne8 Bb2 d6 Ba3 Rd1 c1Q d7 Qcd2 d8B Qf4 Rg1 Rg2 Rd2 Rh2 Be7 Rg2 Bf3 g4 Bd6 g3 Bh5 Rh2 Bg4 g2 Nfd3 Ne3 Rd1 Qg5 Qf5 Na8 Qg7 Rb8 f7 Qf2 Nc2 Qg6 Ke7 Rb6 f8N Nc4 Nh7 Rb4 Qgf7 Qh5 Kf8 Nab6 Rc1 Qg3 Rgd1 g1Q Qf4 Q1e3 Nce1 Qe4 Qf1 Rb2 Nf2 Qgf4 Rd2 Qe2
2K5/1N1Nn1rN/1q6/1B1Q1brb/2N2Rp1/2nQB2b/kn3BP1/1q1RRbN1 w - - 0 1 legal: proof: h4 e5 b4 d5 c4 g5 cxd5 a5 f4 axb4 fxe5 Bg7 h5 b5 h6 c5 hxg7 Ke7 Kf2 h5 Ke3 f5 d4 b3 a4 c4 d6+ Ke6 d5+ Kd7 Kd4 h4 Kc5 c3 e4 h3 a5 f4 a6 c2 a7 f3 Na3 b4 Bb5+ Nc6 Be3 c1N Nc4 h2 Ra4 b2 Qd3 Ne7 g8Q b1B Qf7 Rb8 a8N f2 Qf3 f1B e6+ Ke8 e5 b3 Qfe4 b2 Nab6 Rh5 Nd7 Rb7 Rb4 Rc7 Kb6 Ne2 Qed4 Nc3 Bf2 Ng8 e7 Kf7 e8N Nge7 Nef6 Na5 Nh7 Bc2 Ra4 b1B Q4e4 Bd1 e6+ Ke8 Qed4 Bg4 Qc5 Bh3 Qc6 g4 Qb7 Rg5 Qa8 Ng6 e7 Kf7 e8R Qf6 Re2 Ne7 Re1 Ra7 Qb7 Qd4+ Kc7 Qb6+ Kb8 Ba2 Nc5 Be6 d7 Bf5 d8B Bb1 d6 Ba2 Ne4 Ke6 d7 Bb1 Rd1 Bg6 Bc7 Bh5 Bf4 Bc2 Nef6 Bb1 Nd2 Nc4 B4e3 Nb2 d8N+ Ke5 Rf4 Bc2 Qe2 Bf5 Nd7+ Kd6 Nc6 Kd5 Nd8+ Qc6 Qa8 Rc7 Nb7 Qc5 Ngf3 Qb6 Rg1 h1Q Re1 Qh2 Rh1 Qg3 Ng1 Qf3 Nc4 Qe4 Nde5 Qb1 Qd3+ Qd4 Nd8+ Kc5 Qd5+ Kb4 Nb7 Kb3 Nd7 Qb6 Ndf8 Rd7 Rd1 Nc6+ Kc8 Rdg7+ Nd7 Ka2 Nf3 Be2 Rhe1 Bf1 Ng1 Ne7+
nK4kB/1NBqrrB1/3Q4/qq1qB2n/1NBrp3/2P1RQ2/3R1Q2/2b3Rb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 a5 Kc4 e5 Kd5 g5 f4 e4 b4 d6 h4 a4 c3 d3 h6 d2 b6 a3 b5 a2 h5 g4 f6 g3 h7 g2 b7 Bg7 h6 Qe7 b6 Qd7 f5 Nc6 b8R Qa7 b7 Qa6 Nh3 g1Q Bc4 Qf2 Ng5+ Kf8 f7 Qa4 Re1 Nd8 Re3 Qe2 Na3 Qd7 Nc2 Ra7 Nb4 Ne6 Qf1 Bf6 Qf2 d1Q+ Bd2 Qb3 Rg1 a1Q Ra8 Be5 b8B Bf4 Bc7 Rb7 Ra5 Ra7 Rc5 Qa5 Qf3 Ba6 Be1 Bb5 Bg3 Qba2 Rc6 Ba4+ Rc5 Bd1 Rb5 Qf1 Qf2 Bf3 Rc5 Qe7 Kc6 Bh1 Rd5 Nf6 Rd2 d5 Qf3 Rg8 h8B d4 h7 Nh5 Bhe5 d3 h8B Rg7 Bh2 Ra8 Kb7 Ra7+ Kb8 Qd7 Bd4 Qad5 Bce5 Nc7 Ne6+ Ke7 Bg3 Na8 Nd8 Kf8 Nb7 Qaa5 Bc7 Bh6 Bge5 Qb1 Na6 Qbb5 Nb4 Ke7 f6+ Ke6 f8Q Rf7 Rdg2 d2 Qc5 d1R Rd2 Re7 Qd6+ Kf7 Bg7 Kg8 f7+ Kh7 f8Q Bg5 Q8f4 Kg8 Bh8 Rf7 Beg7 Bh6 Bde5 Re7 Rc2 Rd4 Qh4 Bf4 Qhf2 Rf7 Ree2 Bd2 Re3 Bc1 Rd2 Ra6 Qc5 Re6 Qd6 Ree7
1K5Q/QBBR3R/b5q1/rNnnb3/1N1PkN1Q/R2q3q/1b1r1pqR/R7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 g5 b4 c5 h4 f3 h6 f6 h5 c4 b6 g4 h7 f2 h6 g3 b5 g2 b7 a4 b6 c3 Bf4+ Kd7 d6 Ke6 d7 c2 Nh3 g1Q Bc7 c1Q Bg2 f1Q Nc3 a3 Rh2 a2 Nf4+ Ke7 Kd5 f5 e4 Kf6 e5+ Kg5 e6 Qb1 e7 Nf6+ Kd6 Ra7 Qe1 Qfd3 Nb5 Bg7 e8R Na6 b8N Nc5 b7 Ra5 Nc6 Nd5 b8Q Ba6 Re3 Qc8 Nb4 Be5+ Kc6 Qf2 d8R Qg3 Bh1 Qg2 Rd7 Re8 h8R Re7 Nh5 f4 h7 Kf5 Qa7 f3 Qh4 f2 Nf4 Qbg1 Rg3 Ke4 Rgh3 Qe2 Ra3 Qd3 Rg8 Qgb1 h8Q Re8 Rh7 Qch3 Rgg7 Qbc2 Rd7 Re7 Rg1 a1B Rd1 Bb2 Rda1 Ne3 Bd6 Qb1 Kc7 Nd5+ Kb8 Qdg3 Rc3 Qg6 Bc7 Qbd3 Rca3 Ke3 Nh5 Bf4 R3a2 Q2e4 Bd6 Nf6 Bf3 Qd5 Bd1 Qdg2 Bc7 Re4 Bb3 Be5 Ra3 Kf3 Be6 Re2 Nf4 Rd2 Bd5+ Ke3 Bc6 Nd5 Bb7 Ke4
bNQb4/3Br3/B4qk1/r3Q3/R2P1RKQ/B1q1rpqN/1n1nB2B/2R3q1 w - - 0 1 illegal: No possible last move, all moves rejected
QQ3K2/B3Qb2/n2B1n2/1b6/NN1p4/N2Pn2R/Nqr1b2n/k1qBNR1r w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Kd4 f4 d5 g4 a5 d3 e5 g5 c5 g6 h6 f6 a4 f5 e4 b7 c4 b6 h3 f7 c3 f8B h2 f6 e3 b5 e2 g7 e1N Kg6 a3 Kf7 a2 Bd6 h5 Qe2 c2 Na3 Kc3 Be3 Kb2 Nf3 Na6 b8Q h4 b7 h3 b6 Qc7+ Kf8 Bg4 f7 Nf6+ g8Q Qc3 Bec5 d4 Qe7 c1Q Be2 Bd7 Bd1 Bb5 Rf1 Ra7 Qa8 h1B b8N h2 b7 Bg2 Nc6 h1B b8N Rc7 Ba7 Q3d2 Nb4 Rc2 N8c6 Rh7 Nh2 Bd5 Nf3 Bg2 Rh1 Bf1 Rh3 Be2 Qb8 Rg7 Qa8 Rg1 Qb8 Rh1 Qa8 Ng2 Ne1 Ne3 Qg3 Nf1 Qh2 Qc3 Qg3 Qe3 Rc1 a1N Na2 Nh2 Ncb4 Nb3 Qg8 Na5 Qb8 Bb3 Qg2 Qcd2 Qga8 Nc4 Nf3 Nd7+ Ke8 Qc3 f8N Nd2 Ne6 Qf4 Nc5 Nf6+ Kf8 Bf7 Ra1 Ndf1 Rc1 Rd2 Ba4 Qb3 Re1 Qc3 Bd1 Rc2 Na4+ Ka1 Ng1 Qc1 Nf3 Ne3 Rf1 Qb3 Ne1 Qbb2
r1B2n2/B1K1Q1R1/2n3r1/qRRRN3/Q1P2Bq1/Nb6/2R2q1p/k1Nqr1b1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 h5 Ke4 e5 Kd5 a5 g4 h4 f4 a4 c4 a3 b4 e4 b6 a2 f6 e3 g6+ Ke8 b5 d3 g5 d6 g7 Kf7 b7 d2 f5 h3 b6 h2 g6+ Ke8 f7+ Kd7 f6 e2 Qa4+ Nc6 b8B e1R b7 Qe7 Ba7 Qe3 b8R Rh6 Rb5 Qf2 Ne2 d1Q+ Bd2 Ba6 Nc1 Qg4 Bf4 Kc7 Rc5 Bb5 Na3 Be7 Rb1 a1Q f8Q Bd8 Bb8+ Kb6 f7 Bf6 Qe8 Bd4 f8N Qc3 Qd7 Qa5 Ba7+ Ka6 Qe8 Be3 Nd7 Nge7+ Ke4 Bd4+ Be2 Be3 g8R Bd4 g7 Rg6 Ne5 d5+ Kd3 Be3 Rf8 d4 Ke4 d3 g8R d2 Rf5 d1Q Rg7 Bd4 Rg1 Be3 Rg3 Bd4 Rc3 Be3 Rc2 Bd4 Qb4 Ba4 Rbb2 Bb3 Qa4 Re6 Rd5 Ng6 Qe7 Nf8 Rc5 Rg6 Kd5 Qfg3 Bd3 Bg1 Rb1 Qf2 Rg5 Qde2 Bf5 Qef1 Be6 Q1e2 Kd6 Qd1+ Rd5 Ba2 Rb5 Bb3 Rdd2 Ba2 Qb3 Qa4 Nf3 Qb4+ Kc7 Qbc5 Rb8 Ka5 Bc8 Qcf5 Qbe3 Qb5 Rc5 Ka4 Rdd5 Qb4 Ne5 Qc3 Nb5 Qa3 Qd4 Bb3 Qb2 Qa1 Qa2+ Kb4 Qa6 Qa4 Na3+ Qb5 Re2 Kc3 Qa4 Qa5+ Rb6 Qc2 Red2 Kb2 Re2 Ka1 Red2 Qac3 Rbb5 Qcd1 Rc2 Qa5+
B4BBQ/r2Q1N2/1R1qR1q1/2b2rnP/p4K1n/1n4B1/k1bNrB1Q/3r2N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 h4 Kc5 b4+ Kc4 d4 f5 h6 g5 h5 c5 d6 a5 b6 a4 b5 Ra7 d7 Na6 d5 Ne7 d6 Nc7 b7 Ng6 b8Q Ne6 e4+ Kb4 b6 c4 e5 c3 h7 c2 b7 Kb3 Be3 g4+ Kf2 f3 Kg3 f2 Bg2 f1Q Bf2 Ng5 e6 Qa6 e7 Nh4 Kf4 g3 e8B Kb2 Qg4 c1N Bf7 Nb3 Nd2 Qe8 Bfd5 Qg6 Rb1+ Ka2 d8B Be6 d7 Bc5 Bf6 Re8 d8N Qd6+ Be5 Bg8 h8Q Bh7 Nf7 Re6 Bge4 g2 Qc7 Re8 b8B Re7 Qh3 Re6 Qd7 Re8 Ne2 g1R Qh2 Re1 Ng1 Re2 Bc4 Re6 Ba8 Re8 Bc7 Re7 Ba5 Re6 Bb4 Re7 Kg3 f4+ Kg4 f3 Beg3 R7e5 Kf4 Qh6 Ba3 Bc2 Re1 Qdg6 Bb4 Bb6 Bf8 Bc5 Bd3 Qd6 Bh7 Qg7 Bg8 Qgg6 Bd4 f2 Be3 f1R+ Bef2 Nd4 Rb1 Rd1 Rb6 Qe7 Nh3 Qed6 Re1 Nb3 Ng1 Rc7 Bh6 Rb7 Bf8 Ra7 Qdh3 R2e3 Qd7 Rf5+ Kg4 Re7 Re6 Re8 Rf6 Re2 Re6 Rfe5 Kf4 Rf5+
R4RNr/R3BqbN/1n1rB3/4q1P1/1Q4QK/2prk3/N1bR1n1Q/2r1qR2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 d4 a5 g5 e5 f6 a4 b6 c4 f5 h3 Kg3 c3 f7 a3 b7 e4 f6 h2 b5 e3 b6 e2 Bh3 e1R Kh4 a2 Nd2 Na6 b8Q+ Nc7 b7 Be6 Qg4 Ra3 Ne2 Bf5 Rf1 Bg7 f8R h1Q f7 Bc2 Bb2 Ra6 Nc1 Nf6 Ne4+ Ke7 Ba3+ Qd6 Bc5 Na8 Ba3 Qc5 Qh2 Rd1 b8Q Rd6 Qb4 Nb6 Ra8 Qf3 f8N Rd3 Nh7 Kf7 Rf8+ Kg6 Ra8 Ng8 Nef6 Nh6 Ng8 Qf7 Ra7 Qb5 Ra8 Qbe8 Ra7 Qe5 Ra8 Re6 d6 Rf6 d7 Rd6 Qgg2 Ng4 d8R Nf2 d5 Rd1 Rf8 Rd3 Rb1 a1R Qgg4 Qfe8 Na2 Qf7 Rbd1 Rb1 Ra7 Rc1 Qgc4 Qe3 Rd2 Qe5 Bg2 Kf5 Rfa8 Rh6 d6 Rf6 d7 Re6 Qg1 Red6 Be4+ Kf4 d8R Ke3 Bf5 Qff6 Bg4 Qf7 Qh2 Qff6 Be6 Rb1 Qg1 Rd7 Qe7 Qf7 Rf8 Rc1 Qh1 Ne4 Kh3 h4 Qec5+ R7d4 Q5b5 Rd8 Be7 R8d5 Kg4 Rd6 Qbb4 h3 Rf4 h2 Kh4 Bb3 Qg2 h1Q+ Qh2 Bc2 Rf5 Qd1 Rf1 Nf2 Qg4 Qe1
k5n1/bqq5/1Q1nqR2/B4pK1/N1QR1r2/1Br1qN1R/P1Qn4/1bR1NR2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 b5 Kf4 c5 h4 Kc7 e4 Kb7 d4 f5 d6 b3 e6 c4 h6 g6 e5 b4 d5 b2 h7 b3 e7 c3 e8Q c2 e6 Qe7 h5 Qd8 h6 Ra4+ Bc4 Ra3 e7 Qd7 Kg5 Qa4 d7 Ka8 d8Q Qa6 d6 Bb7 d7 Qd6 Nc3 b1N Qb6 b2 d8R Qe6 Qf7 Nd2 e8R b1Q Nf3 Be4 Rd4 Bc5 Na4 Rc3 Ne1 Qb3 Ba3 c1Q Bb4 Bb1 Ba5 Qb4 Re7 Na6 Qc2 Nc7 Rf1 Ne8 Bb3 Nd6 Rc7 Qb5 Rc6 Qa6 Qfc7 Qb7 Qf7 Qe8 Qc4 Qe6 Kh4 g5+ Kh5 g4 Kg5 Nc8 Rcd6 g3 Rc6 Nf6 Rcd6 Rd8 h8N g2 h7 Ng8 Nf7 Rd7 Rc6 Nd6 h8R Re7 Rh3 g1Q+ Kf4 Rc7 Ne5 Rd7 N5f3 Qge3+ Kg3 Rg7+ Kh4 Rg4+ Kh5 Rf4 Kg5 Nc8 Rc7 Nd6 Rf7 Qec8 Rf6 Qcc7 Qc6 Ba7 Qb6 Qe6 Qb2 Bd3 Qc2 Qa3 Rc1 Qac5 Qb2 Bb1 Qc2 Qce5 Nh4 Qee4 Nhf3 Qe3
4Q1bq/1n6/BR2K2N/Bn3pNN/r1n1R3/1b2NP2/bNQ1q3/k1b2BrQ w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 h5 e4 a5 g4 d5 c4 f5 b6 a4 g5 h3 c6 h2 c5 h4 g6 h3 c7 a3 g7 a2 b7 Na6 b8N Nh6 g8N Nf7 c6 Nc5 Nf3 Nb7 Bd2 Qe7 Nh6 Rg8 Nc3 Rg1 Rb1 a1Q Nd7 Nfd6 Nb6 Ra4+ Nc4 Bg7 Rb6 Nb5+ Kd3 d4 Ne3 Bd7 c8B Bf6 Qb1 Bg5 Ncd1 Qb2 Qc1 Qh7 Bb4 Qh8 Kc4 d3 Qb1 Qe2 c7+ N7d6+ Kc5 d2 Nb2 d1N Ba6 Be8 Ba5 Bg6 Qa1 Bh7 c8Q+ Ke7 Kd5 Nb7 e6 Kf6 Qc2 Bf4 Nd3+ Nb2 Qe1 Nc4 Nb2 Nd4 Ng5 Nb5 Ng2 Bc1 Ne3 Rg4 Rg1 h1B Qed1 h2 e7+ N7d6 e8Q Bg2 Bd2 h1B Ba5 Bf3 Rg2 Rg3 Rh2 Rg1 Rh4 Bh5 Rg4 B5g6 Rf4 Bf3 Rh4 Bfh5 f3 Bf7+ Kc6 Nb7 Kd7+ Ncd6 Rg4 Bb3 Rf4 Bhf7 e5+ Kg6 e6 Kf6 e7 Ke5 Rb4 Nc4 Qe1 Kd4 Qh4+ Rg4 Qh3 Rg1 Qh1 Bfg6 Ke6 Bg8+ Qf7 B6h7 e8N Ba2 Qb1 Kc3 Nf6 Nd2+ Rc4+ Kb3 Rd4 Nc4 Nh5 Ka3 Qe4 Bb3 Qc2 Ka2 Re4 Ka1 Ke7 Ba2 Qf8 Nca3 Kd7 Bgb3 Qe8 Nc4 Ke6 Bg8+
q1q2R2/1r1B3R/1KNr2N1/3QBpk1/QQRr2P1/q1b1q1Q1/2bB1Q2/1n2n3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 d4 f5 e4 h5 b4 a5 g6 Kf6 d6 c5 b6 f3 Ke3 c4 b5 c3 b7 c2 e5+ Kg5 d5 a4 Kd4+ Kg4 Kc5 a3 g7 a2 e6 h4 e7 h3 e8Q h2 b6 Bd7 Bd2 c1R+ Qc2 f2 Nf3 Re1 Ne5+ Kh4 Bb5 f1Q Nc6 Re3 Na3 Qe2 Rac1 a1Q Nc4 Rh7 N4e5 Nf6 g8Q Bg7 Ng6+ Kg5 g4 Qa2 Qgf8 Ra4 Qb2 Qc8 Rc4 Be6 d7 Qa3+ Qb4 Qf3 d6 Nd5 d8R Nc3 d7 Nb1 Qh8 Ba1 Qd4 Bc3 Qd5 Bg8 Qee4 Qf4 Rf8 Rd3 d8Q+ Re7 Q8d7 Qe3+ Qed4 Ra6 Qe8 Rf7 Ba4 Nd7+ Kb5 Nc5 b8B Rd7 b7 Ra7 Qee4 Rd6 Kb6 Bf7 Qg2 Be8 Q4e4 Rd4 Qf2 Nd3 Bc7 Ne1 b8Q Rd8 Be5 Rd6 Qc2 Bd7 Bb5 Be6 Qca4 Rf7 Rg1 h1Q Qc7 Qh8 Rh1 Re7 Rh7 Qa8 Rff7 Qhc8 Rf8 Bg8 Qdg2 Bd5 Qb7 Rg7 Qgg3 Be4 Qf7 Bc2 Qd5 Qd7 Ba6 Qde8 Bc8 Ra7 Be6 Qec8 Bd7 Rb7+
2R1BQ2/K1rbB3/nrB1k1N1/2bbP2n/1R6/7p/2rNq1Bq/1QNr1QB1 w - - 0 1 illegal: No possible last move
Q3rb1B/3B3n/1NQ1N3/b2qp2k/rBb3N1/PBqQ1r1B/1K6/n1Rr2R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kf7 f4 b5 d4 c5 Kd2 h5 Kc2 h4 f6 Kg6 f5+ Kf7 d6 e6 d5 h3 a3 c4 g6+ Ke8 g5 c3 g7 Kf7 d7 h2 d6 Ne7 Nd2 Na6 Bb2 Ra7 Bh3 Ng8 Qf3 Nc5 Rc1 Nb3 Nc4 Ra4 Qc6 Ba6 Nb6 Na1+ Kb1 b3 Nf3 b4 Rhg1 h1R Nh2 Qa8 d8Q Bc4 d7 Qa5 Qb8 Qd5 Ng4 Rh2 d8Q Rf2 Qba8 Rf3 Rcd1 c2+ Kc1 Qe5 Qd3 Qa5 Bc3 Qd5 Kb2 e5 Rc1 Ne7 Be1 Ng6 Bd2 Bc5 Bc3 Nf8 Bd2 Nh7 Bc3 Re8 g8B+ Kf8 f7 Kg7 f8N Be7 g6 Bd6 Ne3 Kh6 g7 Kh5 f6 Bc5 f7 Be7 Ne6 Bf8 Rcd1 c1B+ Kb1 b2 Ng4 Be3 Rc1 Bec5 Bd2 Bcd6 Bg5 Bc7 Bf6 Ng5 Bh7 Bd8 Bf5 Nh7 g8B Bc7 Qb3 Bd8 Ka2 b1R Bh8 Bc7 Rcf1 Rd1 Kb2 Bd8 Qd3 b3 Re1 Bde7 Ref1 Bb4 Re1 Ba5 Ref1 Bh6 f8B Bg7 Bb4 Bf8 Kc3 b2 Re1 Rd2 Rc1 b1Q Qe3 Qbe4 Qd3 Rd1 Kb2 Ba6 Nd8 Qe1 Bd7 Qd6 Bb3 Bc4 Ne6 Qc5 Qe2 Qd5 Qd3 Qc3+
2R4N/q1B5/1K1QQ1n1/QBPRn1N1/r5n1/bQ3R2/2nqp1Q1/kr3bqB w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 h5 Kc4 a5 Kc5 d5 f4 d3 g4 a4 b4 d2 c4 h4 f6 Ke6 f5+ Ke5 g6 h3 g5 d4 g7 d3 g6 h2 f7 a3 f6 a2 b6 Rh7 b7 Ra7 b5 Ke4 b6 Bf5 Qe2+ Kf4 Na3 Be4 Nh3+ Ke5 Qg2 d1Q Nb5 e6+ Nd6 d2 Ng5 Be7 f8Q Nc6 b8Q Bd3 b7 Ra4 Qc7 Qa8 Kb6 Kd4 b8Q Kc3 Ndf7 e5 Nh8 e4 f7 Ba3 c5 e3 Qfd6 Ne5 f8R Ne7 g8B Rhh4 g7 N7g6 Rb1 a1N Rc8 Nc2 Bd5 Rh3 Rg1 h1N g8Q Nf2 Qge6 Rh1 Ra1 Ba6 Bb5 Nfg4 Rf1 Qe2 Rf7 d1Q Rf3 Qg1 Bd2+ Kb2 Rd1 Qef2 Ba5 Qfe1 Rd3 Qd2 Qbb7 Ka1 Be4 e2 Qbd5 Bb7 Qb3 Qge3 Qcd8 Rb1 Rd5 Qg1 Qf1 Nge3 Rf2 Qe1 Kc7 Rd4 Bh1 Rb4 Rd1 Bf3 Rd5 Bg2 Rf3 N3g4 Qf2 Bf1 Qg2 Ra4 Bb6 Qaa5 Kb7 Qed2 Q8c7 Nd3 Kc6 Qa6 Qa7 Qaa5 Bc7 Qa6+ Qb6 Qa7 Qa6 Qa8+ Kb6 Nde5 Qa5 Qa7+
2K3kB/1RNnQq2/1R2R1b1/2P2bb1/1Q3nN1/2Q3QB/N1pr2q1/1b1r2Qq w - - 0 1 illegal: No proof kernel
1n5q/2b2bN1/BQ5B/P3N1Nq/5Qr1/2nRNRK1/QRbNrp2/n3b2k w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 e4 g5 d4 c5 h4 f5 a4 b5 e6+ Kd6 a5 f4 h6 b3 h7 b4 e7 b2 h5 g4 h6 b3 Nh3 f3 Rh2 c4 Qc2 c3 Nd2 b1N Qa2 c2 Kg3 b2 Ba6 Nc3 Ng5 b1B e8Q Ra7 Qf7 Re7 Qf4+ Re5 Re2 f2 Re3 Ne7 Rf3 Rg8 h8Q Be6 h7 Nec6 Qhf6 Nb4 h8N Bh6 Ng6 Rh8 Nh4 Qe8 Bb2 c1Q Ng2 Nc2 Ne3 Qh1 Bc1 Qhh5 Qg6 Rh7 Qgf6 Qh8 Qg6 Kd7 d6 Kc6 d5+ Kc5 d7 Kd4 d8N Bf7 d6 Bg7 Kg2 g3 d7 Bf8 Qc6 Bb4 Qb5 Qg6 Qc6 Rh4 Qcf6 Qgh5 Nc6+ Kc5 Qh6 Re8 Ne5 Kd4 Qa3 Re7 Ra2 Na1 Rb2 Bc2 Qa2 Re6 N5c4 Kd3 d8R+ Ke2 e5 Re7 e6 Re8 e7 Ke1 Nh3 Ke2 Kh1 g2+ Kh2 g1B+ Kg3 Ke1 Qb6 Bh2+ Kg2 Ke2 Rd3 Bg3 Ng5 Ke1 Qff6 Bc7 Ne5 Ke2 Kg3 Ke1 Nd5 Ke2 Qf4 Ke1 Nde4 Kf1 Nd2+ Kg1 Ne3 Kh1 Nb1 Rd8 e8N Rd4 Nd2 Re4 Nd1 Re2 Ne3 Nb1 Ng7 Bc3 Ndf1 Be1 Nd2 Nc3 Nd1 Nd5 N5e6 Ne3 Qh6 Be8 Nc4 Nb3 Qf6 Nd5 Bh6 Na1 Nde3 Bf7 Nd2 Nc3 Ng5 Bd6 Qf5 Bc7 Qf4 Rg4+
QN1rk2n/qrrr4/3QN2P/q1b1Q2b/2R2RK1/nB3B1p/1Q2nB2/4R2Q w - - 0 1 illegal: No proof kernel
1b1KnR1B/R1B3NQ/1N1Qr1p1/3rQ2B/q3Q1qk/P3r1n1/n1r5/1R3Q1b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 b5 h4+ Kh6 d4+ Kh7 f4 Kh6 d6 c5 d7 c4 Ke6 g6 f6 b3 d5 b4 d6 b2 f7 c3 f5+ Kh7 h6 c2 h5 b3 f6 Bb7 Qg4 Qc7 d8Q Nd7 Nf3 Qc6 Nh4 Ra6 Qc7 Qa4 Na3 b1Q Qe4 b2 Bf4 c1R Be2 Rc2 Nf5 Qd1 Ng7 b1N Nc4 Nc3 Nb6 Ra5 a3 Rd5 Rb1 Na2 Qc3 Qg1 Qce5 Qg2 Rh3 Ba8 Rc3 Qg1 Rc7 Qg4+ Nf5 Bg7 f8Q Nc5+ Kf7 e6 d7 Bc6 Ke8 Bb7 f7 Nf6+ Kd8 Ne8 Qa1 Be5 Ng7 Ba8 Ra7 Bb8 Qd6 e5 f8Q Rg8 Qff5 Rf8 Bh2 Rf6 Qf1 Re6 Qad4 Nb3 Qc3 Nd4 Bf4 Nf5 Qg3 Kg8 h7+ Kf7 h8Q Kf6 h6 Bc6 Qge1 Ng3 h7 Ba8 Qg8 Bc6 h8B Bb7 Qeh1 e4 Qgh7 e3 Qe4 Bc6 Be5+ Kg5 Bf3 e2 Qa5 Qf5 Bh5 e1R Bf4+ Kh4 Qc3 Ba8 Qce5 Rf2 Kc8 Qg4 d8R Nf6 Rg8 Rc2+ Kd8 Ne8 Rf8 Ree2 Bd2 Re3 Ba5 Nf6 Nd7 Ne8 Bc7 Rd4 Nb6 Rd1 Qed3 Bh1 Qde4 Rd5
1KQn2q1/1q2qR2/4BBpN/r4Q2/R3Pr2/3N1bk1/N1NBR2b/1r2Nnr1 w - - 0 1 illegal: No possible last move, all moves rejected
R2qN2b/1qBn2r1/2rq1P2/1k5B/R1q5/R1QR1BN1/b4K1p/Qnn2NR1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 h5 g4 a5 b4 c5 b6 e5 g5 a4 b5 e4 g6 e3 g7 h3 d6 h4 b7 h2 f6 e2 f5 a3 d5 h3 f7 a2 f6 c4 b6 c3 Kf2 e1N Nd2 c2 Ne2 Rh5 Ng3 Qc7 Rg1 h1Q Bg2 h2 Bf3 Qc6 Ndf1 Qc4 Bf4 Ne7 g8B Bh6 f8R c1Q Bf7 Rg5 B7h5 Ra6 Qd2 Rg4 Qc3 Rg7 Be5 Q1f4 Re8 Nbc6 b8Q Bb7 Qa8 Nb8 Rg8 Bc6 b7 Nd3+ Ke2 Nc1+ Kf2 Ba4 Rc8 Rb6 Rc5 Rc6 Ra5 Bb3 Ra4 Rg6 Qa7 Bg7 Ra3 Bh8 Qa6 Kd8 d7 Rg7 Bd6 Qe5 Ra4 Qe6 Bf4 Qe5 Ra3 Kc7 d8N Kd6 Ne6 Nd7 Nc7 Kc5 d6 Nd5 b8R Qe7 Qa4 Qd8 Ra8 Kb6 Ne8 Kc5 Rb1 a1Q Be5 Ba2 Rb4 Qb1 Qd1 Qg6 Rba4 Kb5 Qdd4 Qb1 Qa1 Qbb4 Qdc3 Nb8 d7 Qd6 Qe1 Nc3 Qe3 Qdd5 Bc7 Qd6 Qd3 Nb1 Qdc3 Qc8 d8R Qb7 Be2 Qhd5 Bef3 Qg8 Rd7 Qgf8 Rf7 Qd8 Rd7 Qfe7 Rd6 Nd7 Rd3 Qd6
R2Nn3/3b3B/b3Bpr1/2rNN1B1/KRnQR2R/b4qkr/Q3Pq1b/5R2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Ke7 d4 Kd6 Kd2 a5 Kc3 c5 Kb3 h5 g6 f3 g7 f2 b6 c4+ Ka4 f6 b4 h4 g5 h3 b5 h2 g6 c3 b7 c2 b6 Nc6 b8R Bd7 b7 Nh6 g8Q Nf5 g7 Qb6 Bg5 c1R Re8 Rh3 b8R Rc5 Re4 Qa7 Nf3 Ne5+ Rb5 Nc4 Nc3 Qb6 Bg2 f1Q Ne5 Qf3 Qg1 Rac8 Rf1 Rb8 Qf7 Rb7 g8B Ng7 Bh7 Ne8 Kb3 a4+ Kb4 a3 Ka4 Bg4 Rb4 a2 Qe3 a1B Qd2 Rh6 Bh3 Rg6 Qa2 Bc8 Be6 Rd7 Qg7 Ba6 Qh6 Bb2 Qh4 Ba3 Qf4 Rdg7 Qfd2 Rh6 Qdb2 Rgg6 Qd2 Rh3 Qd3 Kc7 d6+ Kb7 d7 Kc7 d8R Bd6 d5 Qa7 Rhg1 h1B Rgg4 Qb6 Qd4 Bg2 Nd3 Bh2 Ra8 Kd6 Rh4 Rc6 Qg1 Qbf2 Ne5 Bh1 Qg4 Rc5 Qf4 Q3g3 Qe3 Bf3 Qd3 Bg4 Qd4 Qgf3 Nd3 Kc7 d6+ Kc6 d7 Kc7 Nd5+ Kd6 d8N Bf5 Bc8 Be6 Ne5 Bd7+ Ndc6 Ke6 Rbb1 Kf5 Rb4 Rb5 Nd8 Rc5+ Nec6 Be6 Rh6 Qf4 Bd7 Kg4 Ne5+ Kg3 Rh4 Q4f3 Bc8 Bf7 Bg4 Be6 Bf5 Bec8 Be6 Bd7+
K6R/n6N/bQBkP2Q/1qb1b1RN/Nn3Q2/RQ3Qrp/3bqB2/4r2r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 a5 Ke4 c5 g4 h5 b4 c4 d4 f3 b6 h4 g6 c3 g7 c2 d6+ Kd7 Kd5 f5 e4 f2 b5 a4 b7 f4 b6 a3 e5 a2 g5 f3 e6+ Ke8 d7+ Ke7 g6 Ra4 Nh3 Rh6 Nc3 Ra3 Bg2 f1Q Be3 c1B Ng5 f2 Na4 Qc7 Qf3 Qc3 Nh7 Na6 b8Q Qc2 b7 Qfd3 Qbf4 f1R b8Q Qcc3 Qb3 Qb4 Kc6 Rh5 d5 Qa5 Bf2 Nh6 g8R Re5 g7 Qe2 Rh8 h3 Rg1 Nf7 g8N+ Kd8 Bh1 Bd2 Ngf6 Ke7 Rg5 Nd6 Nh5 Nb5 Bg2 Qb4 Kb6 Kd6 d8Q+ Bd7 Kb7 Rh1 Qdf6 Na7+ Ka8 Qbb5 Qh6 Nb4 Rc1 a1B Rc3 Bc8 Rd3 Ke7 Re3 Ba6 d6+ Kd8 d7 Kc7 Rd3 Bc5 Rc3 Kd6 d8Q+ Qd7 Qa5 Qdb5 Qb6+ Ke7 Q4g4 Re4 Rd3 Be5 Qff4 Re3 Bc6 Raa1 Qg2 Rg3 Qgf3 Rac1 Qbd5 Rcf1 Ra3 Re1 Qdb3 Kd6
4R3/n1NKqr2/RB1P2n1/1Q5q/1pQ1nr1b/5N1r/B1b2rNQ/2k1NRN1 w - - 0 1 illegal: No possible last move, all moves rejected
1B2b3/2b4k/BN1P2rq/Q2pNnrN/5BB1/Qb1R1b2/1Bnr2R1/R5Kq w - - 0 1 illegal: No proof kernel
R5K1/1N1nn1n1/1NbpB3/b1N2q1k/1n1RNq1P/1Q6/r3r1B1/1rB2RNQ w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 g5 Kc4 a5 Kd5 e5 b4 d6 f4 g4 c4 d3 h4 e4 h6 e3 c5 a4 h7 a3 f6 Kg6 b6 a2 f5+ Kh6 b7 d2 b5 e2 f7 e1N b6 g3 c6 g2 f6 Nd7 Ke6 Ra5 b8R Rf5 c7 Rf4 b7 Rb4 Nc3 Rb6 Ra8 Rb3 b8Q Ne7 Ne4 Bb7 c8B Bg7 f8N Nd3 Kf7 Rb1 Ne6 Bc6 N6c5 Re8 h8N Qa5 Qbb3 Nb4 Rh3 Qa4 Rd3 Qb5 Qe1 Kh5 Rd4 Qd3 Qed1+ Qf3 Qe1 Bh6 Qed1 Bg5 Qe1 d1N Kg7 Bd2 f7 Qf2 f8N Qf4 Nf7 Ne3 Nd8 N3f5+ Kh8 Ng7 Ndb7 Nf6 Be6 Nd7 Ne2 g1Q Bg2 Qgf2 Qh1 Qf5 Ng1 Q2f4 Ba3 Rb2 Rf1 Rb1 Bb2 a1R Bc1 Ng6+ Kg8 Ra2 Na4 Bc3 Nb6 Be1 Bf7 Re5 Ne6 Bd2 N6c5 Be1 Nf2 Ree2 Be6 Ne7+ Kh8 Na6 Nfe4 Bd2 Bg8 Ba5 Be6 Ng6+ Kh7 Nb4 Kg8 Ne7+
r2qRN2/1n1NBB2/N1Rp4/1b4Pb/1b2Q1q1/QN1B1N2/R3nqq1/K2kr3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 g4 a5 b4 h5 c4 e5 Kc2 a4 Kb2 e4 f4 d3 b6 e3 b7 d2 c5 h4 c6 h3 b5 e2 c7 e1Q g6+ Kf6 g7 h2 g5+ Kf7 f6 Kg6 b6 Kf5 f7 Ke4 f5 Ke3 f6 Qe2 Ra2 a3+ Ka1 Nh6 g8B Na6 b8N Bb4 f8N Nc5 f7 Ba6 c8R Nb7 Qa4 Qf2 Bd3 Nf5 Rc6 Ng3 Nf3 Bb5 Na6 Ne2 Re1 h1Q Bb2 d1B Nbd2 Qh3 Bf6 Qhg2 Nb3 Rh1 Be7 d6 Nd7 Rf1 f8N Rh1 Bf7 Rg1 Rd2 a2 Qa3 Rh1 Rg1 Qg4 Rg2 Rg1 Rh2 Re1 Rh8 Na5 b7 Qfg2 b8Q Nb7 Rdc2 Kf2 Qa7+ Kf1 Qe3 Qf2 Nbc5 Qfg2 Kb2 a1Q+ Kb3 Qad4 Ka2 Qgf4 Nfe5 Qff2 Nb3 Qdh4 Nfg6 Qhh3 Be4 Nc3+ Ka1 Qf8 Ra2 Qd8 Re8 Bh5+ Bb1 Qhg4 Qe4 Rd1 Ngf8 Ne2 Qc2 Ke1 Qe4 Rd3 Bc2 Rh3 Bb1 Kd1 Bd3 Rh1 Nf3 Re1
2rbk3/BB6/NQPQ3N/1bbN2N1/2n1np1n/Nq1n4/1r2q2K/RR2B1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a6 Kg3 g5 b4 f5 h4 d5 c4 g4 e4 d3 e6 d4 h6 d2 c5 d3 e5 f4+ Kh2 Qf6 b6 Nc6 b5 Ra7 h7 Ke7 b7 Kd8 b8Q Bh6 e7+ Kd7 e8N Qf7 h5 Bg5 b6 Nb4 b7 Qb3 h6 Nf6 e6+ Ke7 Qc7+ Bd7 b8Q Kf8 Qe5 Bb5 e7+ Kf7 Nc7 Rc8 Qde1 d1N e8N d2 h8B Ne3 h7 d1Q Bg2 Nd3 Nf3 Nc4 Qd6 Qe2 Bd2 Ra8 Qf2 Bh4 Rd1 Bg5 Be1 g3+ Kh3 Bh4 Bh1 g2 Kh2 g1N Rc1 Nh5 Bd4 Bd8 Nf6 Ng3 Qb7 Nh3 Bg2 Ng5 Qg1 Nf5 Be3 Nh4 h8N+ Kg7 Nf7 a5 Ra4 Ra7 Nh6 Raa8 Ra2 a4 Ra1 Ra5 Na6+ Kg6 Ra2 a3 Rb2 a2 Bd4 Ne4 Ng5 a1B Ra2 Bc3 Ra1 Ra2 Na3 Ng3 Rcb1 Bb4 Qbc7 Rb2 Be3 Nf2 Bb7 Nge4 c6 Nd3+ B3f2 Ng3 Qa5 Ne4 Nd5+ Kg7 Qd7+ Kf8 Qd6+ Ke8 Qac7 Ng2 Ba7 Bc5 Qb6 Nh4+
2b3R1/QKR3r1/1PQBn1q1/q5n1/3brnBp/3N1BNN/1B1qB2k/4qR2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 h5 d4 a5 g4 c5 b4 a4 b6 c4 b5 c3 g6 h4 g5 f6 g7 f3 b7 f2 g6 c2 b6 a3 Nd2 a2 Bb2 c1N Qc2 Ne7 g8B Bd7 g7 Bc6 Be6 Be8 g8R Bd7 Nh3 Ra7 Bg4 Nb3 Rc1 Nbc6 b8Q+ Rc7 Qa7 a1Q e3 Ne5 Bfe2 Rh5 Nf1 Qa5 Ng3 N7g6 Rhf1 Bg7 Bef3 Nf7 Qc6+ Ke7 Rc3 Nf4 Rcc1 Rf5 d6+ Ke6 Rc2 Ne5 Be2 Nf3 Rc4 Qe8 Rc5 Qg6 d5+ Kf7 Rc4 Nbd4 Rc3 Nde6 Rc5 Be8 d7 Qd2 d8B Bd7 d6 Rg5+ Bf5 Rg4 Be7 Bh8 Ra8 Kg7 Rg8+ Kh6 Rc2 Bc8 Bf8+ Rg7 d7 Qa5 d8N Bd7 Bd6 Qd2 Rh1 f1Q Nb7 Qfe1 Nc5 Qa5 Rf1 Qed2 Nh1 Kh5 Nd3 Nd8 Rc3 Ng5+ Kd4 Nde6+ Kc4 Qa2+ Kb5 Qa3 Be4 f5 B4f3 Qb4+ Ka6 Qa5+ Kb7 Rf7 e4 Bd4 e5 Rg7 Rcc1 Ng2 Qb5 f4 Bd5 f3 Rc7 Re4 Ng3+ Kg4 Qc6 Ngf4 Bd1 Qe2 Bc4 f2 Ba6 Nf8 e6 Kf3 e7 Kg2 e8B Qed2 Bc4 Kh2 Bf3 N8e6 Bg4 Qh6 Beh5 Qg6 Rc1 f1Q Ba6 Qg1 Rf1 Qge3 Bc4 Qee1 Bd5 Re2 Bdf3 Re4 Be2 Qe3 Bgf3 Q3d2 Bhg4 Bc8+
2R1Qqr1/2rbn3/pR5R/KBb1qN2/1n2B2b/3B1N2/2PBQQ2/2Bn1n1k w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 h5 g4 e5 b4 d5 b6 a6 b7 d3 Kc3 d2 g6+ Kf6 g5+ Kg7 b5 e4 b6 h4 Bb5 e3 Nf3 h3 Nh4 h2 Qe2 d1Q Nd2 Nh6 f6+ Kg8 f7+ Kg7 f5 Be7 f8R Bc5 Ndf3 Rg8 Rb1 Nc6 b8B Nb4 b7 Ra7 Bf4 Bd7 b8Q d4+ Kb3 d3 Ka4 Qe8 Ka5 Qe5 Rc8 d2 Qb6 Rc7 f6+ Kh8 f7 Kg7 Qe6 Nf5 Qe8 Qf1 Bd3 d1N f8Q+ Kh8 g7+ Kh7 Bb5 Ne7 Nf5 Qf2 Qc4 e2 Bfd2 e1B Qe2 Qf1 Qf6 Bh4 Qb6 Bd6 Qbf2 Bc5 Bd3 Na2 Rb6 Nb4 Rg1 h1N Be4 Ng3 Rh1 Qg2 Bd3 Nf1 Rh3 Rf8 Bb5 Qgg3 Rh2 Qgf4 g8B+ Kh8 Bgc4 Kh7 Bd3 Rg8 Nd6+ Kg7 g6 Kh6 Nf5+ Kh5 g7+ Kg4 Rh1 Qh6 Rh3 Qhf6 Be4 Qf8 Rh2 Bf6 Rh6 Bh4 Bed3 Rh8 g8B Kh3 Bd5 Rg8 N3d4 Nfe3 Ba8 Nf1 Bg2+ Kh2 Bge4+ Rg2 Nf3+ Kh1 Qh5 Rg7 Qe8 Rg8
2Q1N1n1/1RnNqn1P/n2bb3/1pB1r1r1/B4Bqk/RN2N3/rR1QN3/4K3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 d4 e5 a4 c5 h6 g5 h7 b6 a5 e4 h5 g4 d6 c4 a6 c3 h6 e3 d7 c2 a7 g3 d5 b3 d6 b2 Nd2 b1Q Nc4 g2 Ra3 e2 Ne3 Bg7 Qd2 Qb2 Rh2 Qf8 d8N Be6 d7 Qd6 Nc6 Na6 d8R Ba2 Rb8 Qc7 Nd4 Be6 Rb7 Qe7 Nb3 Re8 a8N Bf8 Nc7 Qd4 Qc3 Ra8 Qd2 b5 Ne8+ Kf7 f6 Kg6 f7 Nc7 f5+ Kg5 f6 Qg4 Kf2 e1N Be2 Ra4 Bd1 Nf3 Ne2 Ne5 Ke1 g1R+ Kf2 Rg3 Ke1 Ra5 Rg2 Kh4 Rf2 Bg7 f8N Nf7 Nd7 Bf8 Rg2 Qd8 Rf2 Bd6 Rg2 Qe7 Rf2 Ne5 f7 Ra7 f8B Nf7 Bg7 Rg2 Bd4 Ra4 Bc5 Re4 Bb2 c1N Be5 Na2 Bf4 Nb4 Bc2 Nba6 Bd1 Nf6 Bc2 Rg8 h8Q Rg6 h7 Rg5 Qc3 Ne5 Ng1 Nb8 Nd4 Ng6 Ba4 Bc4 Nb3 Be6 Ng7 Nba6 Qc8 Ng8 Ne8 Ree5 Rc2 Rd2 Ne2 Nh8 Rca2 Rc2 Qd2 Nf7 Ra1 Rb2 Rb1 Ra2 Rb2 Qh3 Qd1 Qf3 Qd2 Qg4
2N1r1QQ/1BN1b1np/NRn3R1/6PB/4N2K/1R1qk3/2rqNnr1/B2b1r2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 d4 Kd6 b4 a5 e4 c5 g4 f5 g6 f3 Kg3 c4 e5+ Kc7 d6+ Kb6 g7 f2 g5 c3 d5 f4+ Kh4 c2 d7 f3 d6 a4 e6 a3 e7 a2 e8B Ra7 Nc3 Be7 Bg2 f1N Rb1 a1R Rb3 f2 Bb7 Ng3 Nge2 f1R Bb2 c1Q Bh5 Qd2 Ne4 Qe8 d8N Nh6 g8N Qc2 d7 R1a4 Ne6 Qf8 Qa1 R7a5 Nc7 Qf2 d8Q Bg4 Qa2 Ra7 Ba1 Nc6 Rh2 Qe1 Rf2 R4a5 Rf6 Qd3 Rg6 Qed2 Qb2 Nh1 Qg7 Bd6 Ne7 Re8 Qh8 Ra2 Qc8 Rc2 Qe6 Raa2 Qeg8 Ka7 b6+ Kb8 b5 Nf2 Ng1 Bd1 Ne2 Bb4 Nc8 Be7 Ba8 Rab2 b7 Ra2 Ncd6 Ka7 b8N Kb6 Nba6 Nh3 Bb7 Nf5+ Kg4 Ng7 Kh4 Ka5 b6 Nf2 Bc8 Ka4 b7 Ka5 b8R Rab2 Bb7 Ra2 Nb4 Kb6 N4c3 Kc5 Nc8 Qd5 Ne4+ Kc4 N2c3 Kd4 Nba6 Ke3 Ne2+ Q5d3 Ba8 Ra5 R8b6 Rf5 Bb7 Rf3 Ncd6 Rg3 Nc8 Rg2
1b4nr/1QBB3p/1P1Nn2r/kb1Q3n/Br1NR1K1/7Q/qR1R3n/4B1Bq w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 c5 b4 Kc7 d4 Kb6 g4 e5 g5 a5 f6 a4 f7 a3 g6 c4 g7 a2 d6 c3 d7 c2 d5 h3 d6 e4+ Kg4 h2 f4 e3 f5 e2 f6 e1R Ne2 Na6 Qd5 Bb7 Nd4 Qe8 d8B+ Nc7 d7 Bd6 f8Q Qe5 f7 Ra5 Bd2 c1N Nc3 Rd1 Be1 Ra8 Ne4 Rd2 Bh3 Rc8 Rb1 a1Q Rb2 Be7 Nd6 Qa6 Qe8 Qa3 f8B Rb8 Qh5 Nd3 Rf1 h1N Rf4 Bc6 Re4 Qh2 Qh6 Ka7 b6+ Ka6 b5+ Ka5 b7 Ng3 Qh4 Qh1 b6+ Bb5 Qhh5 Ra8 b8Q Nf4 Qbb7 Nce6 Bc7 Qa2 d8R Nf1 Qh6 Bh4 Be7 Nh5 Bf6 Ne7 g8B Bg3 Bf7 Ra6 Be8 Ng8 Bg5 Ra7 Be3 Be5 Bg1 Nh2+ Kf5 Bg3 Bg4 Ra8 Bd7 Rc8 Bd1 Be5 Ba4 Bg3 Bb8 Rc4 Bc7 Rb4 Qe3 Bf4 Qh3 Rc2 Re2 Be5 Rd2 Rc3 Re8 Rg3 Re7 Rg6 Re8 Rh6 Re7 Nf3 Kg4 Nh2+ Kh4 Qa3 Nf7 Ng5 Bd6 Nf1 Kg4 Qa2 Re8 Bf4 Re4 Ne6 Bb8 Bg5 Bbg3 Bf4 B3h2 Bb8 Bc7 Neg7 Nd6 Nh2+ Kg5 Ne6+ Kf5 Nf1 Kg4 Nh2+
2k4n/QqbbbP2/5R1r/2Q1N1NQ/B1n1R1N1/1rQ4r/p2b2Q1/2B1qR1K w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ra4 c6 f4 e5 Kf2 Kd7 b4 a5 g4 h5 Kg2 e4 d4 e3 g5 e2 g6 e1B b6 Nh6 f6 Qc7 d6 Na6 d5 Nf7 b5 Kd8 g7 Ng5 g8Q Rh7 f5 Nb4 b7 Ra6 b8Q Nc2 b6 Kd7 b7 Rh6 Nf3 Bd2 Nh2 Ra8 Nc3 Nf7 Bb5 Nh8 Ne4 Na3 Rf1 Be7 Qgg4 Ra6 Ng5 Rb6 Re4 a4 Qa8 Kd8 b8Q Nc4 Qa5 a3 d7 a2 Qba7 Qb7 Qc3 h3+ Kg1 Bf4 Ba4 Rb4 Qgg3 h4 Qh5 Rb3 Qgf3 Bc7 Qg2 Bf8 Ng4 h2+ Kf2 Nb2 Qcc5 h1R Qc3 Rh2 Kg1 Be7 Qcc5 Bb8 Qc3 Kc7 d8N Nc4 d6+ Kd7 f7 Bc7 f8R h3 f6 Rh1+ Kf2 h2 Rd1 Re1 Kg3 h1Q Ndf7 Re3+ Kf2 Qh4+ Kg1 Rh3 Rf1 Qg3 Nf3 Qh4 N7g5 Qe1 Rf7 Kd8 Nfe5 Be6 Qb6 Kc8 d7+ Kb8 d8Q+ Bc8 Qd6 Bd7 Qa7+ Kc8 Qce3 c5 Ba3 Nb6 Qeg3 c4 Qc5 c3 Qge3 c2 Bc1 Nc4 Qc3 Re3 Kh1 Rf3 Rg7 Rg3 f7 Rd3 Rg6 Re3 Bb2 c1B Rf6 Bd2 Bc1 Rh3+
2nB4/2QN1p1R/2q2N2/2RrQ1qn/q1qbK2R/1N3bb1/PkB5/2N2rQN w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 b5 h4 g5 d4 c5 e6+ Kd6 h6 g4 h5 b3 e7 b2 e8N+ Kd7 h7 g3 h6 g2 d6 Ke6 d7 Kd5 Nd2 b1Q Nh3 g1Q+ Nf2 c4 Nb3 c3 Nf6+ Kc4 d5 c2 d6 Kc3 Rh4 b4 Ke4 Ra6 Nh1 Nc6 Bg5 Ra4 Nc1 Qa5 d8Q Bg4 d7 Qb3 Qc7 Bg7 d8N Kb2 Ne6 Nce7 Nd4 Nc8 Nd7 Qc4 Bd8 b3 e3 Qac5 Bd3 Ra5 Qe1 Qa3 Qf1 Qg3 Qg1 Rd5 Rb1+ Kc3 Ra1 b2 Rb1 Qc6 Ndb3 Bd4 Ra1 Qa4 Rb1 Nge7 Ra1 Re8 h8Q b1Q h7 Ng6+ Qhe5 Kb2 h8R Nf4 R8h7 Qcc4 Ne2 c1B Bc2 Bd2 Nec1 Nh5 Qe6 Qab5 Bd3 Qba4 Ne2 Qf1 Rc1 Qcb5 Rc5 Be1 Bc2 Qa8 Nec1 Rg8 Qf2 Rgg5 Qg1 Qba5 Qe8 Qf6 Kd3 Rgf5 Qh8 Qf2 e4 Qa4 e5 Q8c6 Ke4 Qf1 Qg7 Qfc4 e6 Rf1 e7 Bd1 e8N Qg5 Qge5 Bg3 Nef6 Bf3#
1Q4qk/RQr1RpNB/6q1/3R4/Kn1b1b1N/rPQ3R1/n3N3/b1B1Rb1r w - - 0 1 illegal: No possible last move
nnk1r1n1/2B1p3/1b1n4/1RQ2q1q/1N5B/1N1bRrPB/1QQK2q1/1B1N3B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 b4 d5 f4 Kd7 f6 h5 c5 h4 f5 a4 g3 a3 c6+ Kc7 b6+ Kd6 f7 d3 b7 Kc7 b5 h3 b6+ Kd6 g6 a2 f6 d4 c7 Kd7 g7 h2 Nc3 Qe8 Nge2 Rh3 Qc2 Qd8 Bg5 Rh5 Bg2 Rh8 Kd2 Qe8 Bh4 Ra3 Rhe1 h1Q Rab1 a1Q Rb5 Qb1 Nd1 Qg1 Bh1 Qg2 Nf2 Rb3 Nc1 Rc3 Re3 Rb3 Kd1 d2 Ke2 d1N Kd2 Ra3 Nb3 d3 Qc5 Nb2 Qc2 Nh6 g8B Na4 Bh7 Bg7 f8Q Ng8 f7 Bd4 Qg7 Qbf1 f8Q Qh5 Qf3 Qb1 Qe2 Qbf1 Nd1 Qff5 Qe5 Bc5 Kc1 Bd4 Qec5 d2+ Kb1 Nc3+ Kb2 Ne4+ Kb1 Nd6 Bg6 Nc6 b8B Ba6 Qf2 Kc8 b7+ Kd7 c8B+ Kd8 Nc3 d1N Kc1 Nb2 Kd2 Na4 Nd1 Nb6 Bh7 Na8 Bc7+ Ke8 Qb2 Nb8 Qcc2 Bb6 Be6 Qe5 Bh3 Qef5 Qc5 Kd7 Qe2 Nc6 b8N+ Kc8 Qf2 Ra4 Bg6 Rf4 Qbc2 Rf3 Bh7 Ne5 Nc6 Nd7 Nb4 Nb8 Qb2 Qfg4 Bb1 Qgf5 Ra5 Bd3 Rb5 Nf6 Kc3 Re8 Qfc2 Be2 Kd2 Ng8 Re6 Bd3+ Re2 Qf1 Re3 Qg2+
1q1q2NQ/knbP3B/3Q2bp/br4B1/KRQN1R2/R5nB/6q1/1r1B1Bq1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 h6 Bh3 Kd7 b4 a5 d4 c5 Kd2 Kc7 Kc2 Kb7 Kb3 f5 e4 f3 e5 f4 d6 f2 e6 f1Q b6 f3 g6 f2 g5 Bg7 d5 Ra7 e7 Qe2 e8B f1Q b5 Qee1 Qd4 Qe4 Nc3 Bd7 Nf3 Be5 g7 Ne7 g8B Qf4 g6 Qc8 g7 Na6 Bh5 Qa8 Ne4 Qd2 Nf6 Qfg2 Bh7 Be8 g8B Bg6 Rf1 a4+ Ka3 Kb8 b7 c4 Bf7 Rf8 Ng8 c3 Qg4 Qd3 Bg5 Nf5 Qb4 Qb1 Nd4 c2 Rf3 Re8 Rf4 Nc5 Qc3 Qf3 Qb3 c1Q+ Kb4 Ng3 Ra3 Qce3 Bf1 Qh1 Be6 Rf8 Bd1 Qb2 Beh3 Ra5 Ne6 Ka7 b8R Qeg1 Rb6 Qc8 Rb8 Qhg2 Rb7+ Ka8 b6 Qbd4+ Qc4 Rf6 Rb3 a3 Ra7+ Kb8 b7 a2 Rb1 a1B Rb2 Ra2 Ra3 Rf5 Ka5 Ka7 Rb6 Nd7 Ka4 Bc3 Rb5 Qb6 Nd4 Ba5 Rb4 Rd2 Rb5 Rb2 b8Q+ Ka6 Qbc7 Qcb8 Q7c6 Ka7 Rb4 Nf6 Qd7+ Q6c7 Qg7 Nfe4 Qh8 Qe7 d7 Rb1 d8Q Nd6 Qf8 Nb7 d6 Qed8 d7 Bec7 Qd6 Rb5
1R2B3/kqp5/1R1N1qb1/P1Q3n1/1r1BqR1r/b1R1Q2R/q4KB1/1N1rNn2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 d4 e5 a4 b5 g4 h5 g6 h4 d6 Kc6 g7 Kb6 a5+ Ka6 f6 e4 d7 e3 f7 h3 f5 h2 d5 e2 g5 b3 g6 b4 f6 b2 d6 b3 Kf2 Rh4 Bg2 e1R Qd3+ Ka7 Nf3 Rh7 Be3+ Kb7 Ra3 Ne7 g8R Nbc6 g7 Rh4 Bd4 Nd5 Qe3 Rd1 Ne1 Ne5 Rh8 Nf3 g8B Be7 f8R Rb8 f7 Ng5 Rh6 Ka6 Bh7 Rb4 Bg6 Bb7 Bh5 Bc6 Bg6 Bb5 Bh5 Bd3 Rf6 Bg6 Re6 Qb8 d8R Qb6 d7 Ka7 Rb8 Bc5 d8N Qa6 Nc3 b1Q Reb6 b2 Nb7 Qe4 Nd6 b1Q Rb3 Qa1 Nb1 Qc4 Rc3 Qa6 Rf1 h1Q Rh8 Qb7 f8Q Qh2 Rh7 Qhe5 Qf5 Qf6 Rh6 Nf4 Rhh8 Ne2 Rh6 Qa2 Rhh8 Bh7 Be8 Bg6 Rh5 Rg4 Rh3 Ng3+ Kg1 Rh4 Rf4 Nf1 Qd5 Ra4 Qc4 Ba3 Qc5 Qae6 Kf2 Rb4 Qd3 Q6d5 Qe3 Qa2+
4B1Q1/p1B1rN1q/r2NRK2/n7/Qn2Br2/qb4b1/BkPR4/nN2rBR1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 d3 b4 h4 g6 d2 g5 h3 b6 h2 g7 Ne7 g8B Nec6 g6 Bd6 b7 Na5 g7 Qe7 b5 Rh6 b6 Nbc6 b8R Nb4 Bh7 f5+ Kf4 Kd5 g8B+ Kd4 e4 Ba6 b7 Bc4 Re8 Bb3 Qg4 d1R b8Q Re1 Nh3 Re6 Rg1 h1Q Qc8 Bc7 Ra3 d5 Ng5 Ra6 Nf7 Re3 Bg6 Qh7 Qd7 Qc5 Kg5 f4 e6 f3 e7 f2 Qa4 Bg3 e5+ Re4 e6 Rf4 Ra1 Rc8 Be4 Rc7 Rd8 Rd7 e8N Re7 Ned6 Qc3 Bb5 f1N Be2 Nd2 Bf1 Qb2 Ra2 Qa3 Bb2+ Ke3 Be5 d4 Rb2 d3 Ra2 Rb7 e7 Rd7 e8B Rc7 Nc8 Re7 Bd6 Kd4 Bc7+ Bd5 Rb2 Ndb3 Ncd6 Na1 Rb3 d2 Re3 d1R Qe6 Rg4+ Kf6 Re1 Re2 Qd3 Rd2 Bb3 Rb8 Rh4 Rb5 Rg4 Re5 Rh4 Qc8 Rg4 Re6 Rh4 Na3 Kc3 Nb1+ Kb2 Re5 Bf4 Nh8 Ba2 Qg4 Qg3 Bgf7 Qf3 Qg8 Qa3 Bb3 Bh2 Nf7 Bg3 Re6 Rg4 Bbc4 Rh4 Bce2 Bd5 Bc4 Rg4 Ba2 Bb3 Bfb5 Rh4 Bf1 Rf4+
K1B1N1b1/R6Q/P3brQ1/n1q1R3/b1k1bB1Q/2nbpB2/Rb6/1rQ2N1Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 Kd3 d5 Kd4 b5 g4 h5 a4 h4 c4 b3 f4 b2 a5 h3 a6 b4 f6 Ke6 g6 b3 g7 h2 c6 Kd6 f5 e6 c5+ Kc7 f7 Qg5 f6 Bd7 Bf4+ Bd6 f8Q Qh6 f7 Rh7 g5 Ra7 g6 Qh4 Ra2 Qh5 Na3 b1B Ne2 b2 Qe7 Rh6 f8R Nf6 g8Q Ne4 g7 Rb7 Bg2 Nc3 Nc4 Bh7 Re1 h1B Rf7 b1B Ng3 Bbd3 Qh4 Rb1 Nf1 Rf6 Bf3 Bg2 Qh8 Bg8 Re5 Bf8 Nd6 Qg5 Bh5 Bge4 Qf3 Be7 Qfh1 Qf5 Bf3 Qh5 Rg5 Bd8 Qh7 e5+ Ke3 Be7 Qg6 Be6 Ne8+ Kc8 c7 Kd7 c8B+ Kc6 Rf5 Kb5 c6 Ba3 Ra7 Kc4 c7 Nc6 Rg5 Bb2 Rf5 Bgf7 g8Q Na5 Q8h7 Bg8 Bd1 Bg2 Bf3 e4 Re5 d4+ Kd2 Be2 Kc2 d3+ Kd2 Kb4 Ke3 d2 Kd4 Kb3 Kc5 d1B Kb6 e3 Q1h2 Kc4 Qh1 Nc6 Kb7 Ba4 Ka8 Bd3 Bd7 Na5 c8Q+ Kb3 Qc5 Qf5 Qa3+ Kc4 Bc8 Qh5 Bc6 Bge4 B6b7 Ba1 Qc1 Bb2 Bc6 Qh6 B6b7 Qf8 Bc6 Qc5 B6b7 B4f5 Bf3 Bfe4+
3B1QQK/NbnRb1rn/2Q2QN1/nq2b2Q/R7/n7/1bPRp3/1k1BN1r1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 a5 f4 g5 b4 d6 h6 g4 b6 g3 b5 g2 h7 d3 h5 d2 b7 a4 h6 a3 b6 a2 Be2 Na6 b8R Ra7 b7 Be7 Nc3 Nc7 Nb5 Qe8 Nf3 g1B Rh2 Bd4 Qh1 d1N Ne1 Nb2 Bd1 Nc4 Rd2 Bb2 Ra8 Na5 b8Q Rb7 Na7 Qb5 Rb1 a1B Qf3 Kf7 f6 Ke6 f7 Kf6 f8N d5+ Ke3 Kf5 Ng6 e4 Qh1 Kf6 f5 d4+ Kf4 d3 Qf3 e3 Qc6+ Kf7 Kg4 Nf6+ Kg5 Rg8 h8Q Nh7+ Kh5 Be5 f6 Bab2 Ra1 Rg7 Ra4 Rb6 Rd4 Bb7 Rd7 Ra6 Qg2 Ke6 f7 Rd6 f8Q Rd4 Qgf3 Rg4 Qh1 Rg1 Qc6+ B7d6 Qfg8+ Kf5 Qbe8 Be7 Qf6+ Ke4 Qgf8 B7d6 Qhg8 Kd4 Qee6 Kc3 Qee8 Ng5 h7 Be7 h8Q Nh7 Kh6 Ba1 Rf2 d2 Ba3 Bb2 Bc5 Bc1 Bb6 Kb2 Rg2 Kb1 Qc8 Nd5 Qcc6 Bcb2 Bd8 Nc7 Bg4 d1N Rgd2 Nc3 Bd1 Ng5 Qhh7 e2 Qhh8 Bea3 Qhh7 Re7 Qhf7 Nh7 Kg7 Bad6 Kh8 Bda3 Qfe6 Rg7 Qed5 Be7 Qdf3 Qa6 Qh5 N3b5 Nc8 Qb6 Ra6 Na3 Na7 Nb3 Ra5 Qb5 Ra4 Na5
k7/NR1nNr2/1rb1N3/n1Q2RB1/q2p1rB1/n1PBQ3/4Bbnr/QB3K2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 b4 a5 e4 h5 g4 f5 c3 d5 b6 Kd7 b7 Kc7 b5 f4 g6 f3 g7 h4 g5 a4 b6+ Kc6 g6 a3 e6 d3 e5 h3 e7 a2 e8B+ Qd7 e6 d4 e7 h2 Nh3 Rh4 Na3 Ra7 Rb1 a1N Bg5 Rh7 Nf4 Ra5 Be2 d2+ Kf1 f2 Ne6 Ra6 Nb5 Nf6 g8B Rh4 g7 Rf4 Bg6 Nc2 e8Q Na3 Bgd3 Bd6 Bgh7 Bc7 Qa4 d1N g8B Be5 Rg1 h1R Qf8 Rh2 Na7+ Kd5 Qh6 Nc6 b8Q Bb7 Qc8 Na5 Rb2 Ba8 b7 Rb6 b8N Bc6 Bhf5 Qe8 Bfg4 Nd7 Bgh7 Rf7 Bb1 Bg3 Bhd3 Bh4 Rg3 Rf4 Rf3 Rf7 Rf5+ Kd6 Bef3 Ne3+ Ke2 Ng2 Kf1 Bg3 Qh3 Bh4 Bfe2 Bg3 Qa6 Bh4 Qe3 Bg3 Q4b5 Bh4 Nd8 Kc7 Qc5 Bg3 Qab5 Bh4 Ne6+ Kb7 Qa4 Ka8 Rb4 Qc8 Qd1 Qa6 Qdc1 Qb5 Qb2 Qa4 Qa1 Ra6 Rb7 Rb6 Na6 Bg3 Nb4 Bh4 Nd5 Bg3 Ne7 Bh4 Bc4 Bg3 Bed3 Bh4 Ke2 f1R Bb5 Rf3 Ba6 Bf2 Kf1 Rf4 Bde2 Nh4 Bad3 Ng2
rB1Q4/3Qq2N/4B1r1/1bk1pnN1/B5bb/RQKQ1Rn1/1Pbn3R/2Q3n1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 d4 Kd6 Kd2 h5 g4 c5 g5 a5 b6 c4 f6 e6 f7 h3 b7 a4 g6 a3 f5 h2 f6 h4 g7 h3 Nf3 a2 Kc3 Rh7 Ng5 Ne7 g8B Qe8 Nd2 Na6 Ndf3 Rg7 Qd3 Nc5 Nh7 Nf5 Nfg5 Be7 f8R Rg6 f7 e5 Be3 Qd8 b8Q+ Qc7 Qb3 Ne4+ Kb4 Neg3 Kc3 Qc5 Be2 Bd7 Bd1 Bb5 Bg1 Bd8 Bc2 Qa7 Bf2 Qe7 Bd1 Kd7 d6 Kc6 d7 Kd5 Bc2 Kc6 d5+ Kd6 Rhc1 h1B Ba7 h2 Bb8+ Kc5 d6 Bf3 Rh1 Bg4 Bd1 Bb6 d8Q Ba7 Rg1 h1B d7 Be4 Rg2 Bb6 Rh2 Ba5+ Kc2 c3 Qe8 Bc7 d8Q Bd6 Qed7 Bc7 Kc1 c2 Kd2 c1N Kc3 Bb6 Re8 Bc7 f8Q Bd6 Be6 Nce2+ Kd2 Bc7 Qh6 Ng1 Kc3 Bb6 Bc2 Ba7 Rf1 a1N Rf3 Bb6 Nh3 Bc7 Qc1 Bb6 N3g5 Bc7 Qa2 Nb3 Rh8 Nd2 Ba4 Bd5 Rf8 Bb3 Re3 Bc2 Qb3 Ng7 Rff3 N7f5 Qg8 Bd8 Qge8 Qg7 Qg8 Bf6 Qgd8 Qe7 Re1 Rg7 Qd1 Nh5 Nf7 Bh4 Nfg5 Nc4 Q1d2 Rg8 Ra1 Nhg3 Qc1 Nd2 Ra3 Rg6
3bKq2/r2BB3/Bn1b1R2/pR4rb/1rk5/3NPQnR/RRN1bN1Q/1r6 w - - 0 1 illegal: No possible last move
8/rBrQR3/qP3kbQ/pnr4n/N4Bn1/n3QRb1/1NR2R1N/K1r4R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 f4 h5 b4 e5 d4 a5 Kd2 c5 Kc2 e4 Kb2 e3 b6 e2 b5 e1R g5 c4 d6 h3 g6+ Kf6 d7 h2 g7 h4 d5 h3 d6 Rh6 b7 Ra6 b6 Rg6 Qb3 Re3 Na3 Rf3 Ra2 c3+ Ka1 c2 Qe3 Ne7 g8R Rg4 Nc4 Rfg3 Rg7 Ra7 Bg2 Qe8 d8N Be6 d7 Rg5 Nb2 Na6 b8R Nc7 Nb7 Ned5 Rc8 Bf7 Nf3 Nc3 Nc5 N7b5 Nca4 Bg6 Re7 Nb1 d8Q Qc6 Ra3 Qb7 Qd7 Qa6 Bd2 c1R Rc2 R3g4 Rac3 Re1 Bc1 Rh4 Rf2 Rh7 Rcc2 Rg7 Ne5 Rd1 Bb7 Rh5 Bd2 Rc1 Nf3 Rgh7 Rg1 h1N Nh2 Rf7 Rf3 Nf2 Rh1 Ng4 Rf2 Bh6 Rf3 Bg5 Rf2 Kg7 Rf3 Bh4 f6+ Kh7 f5 Bg3 Rf2 Rg7 f7 Kh8 f6 Rc5 Nf1 h2 f8Q+ Kh7 Rf3 Rf7 Qfh6+ Kg8 Rg1 h1N Nh2 Rh7 f7+ Kh8 Qh5 Kg7 Qh4 Bf2 Rf1 Ng3 Rh1 Nh5 Qh3 Bg3 Rf2 Be4 f8R+ Kg6 R8f3 Bf5 Qe4 Kf6 Bf4 Bg6 Qe1 Rh8 Qe3 Rhc8 Qdd2 R8c7 Qd7 Ng7 Qh7 Nh5 Qh6 N1a3+
6b1/k1N2pRr/3NB3/2n1n3/2Rn3N/2PB1NBq/1n1Qb1b1/KR1QbrN1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Qd3 a5 h4 d5 c3 Kd7 Kd2 Kc7 Kc2 Kb7 e4 g5 b4 g4 Ne2 a4 Kb2 g3 h6 g2 h7 g1N b6 Nh6 e6 Nh3 e7 Rg8 h8Q Ra7 e8B Bd6 h5 Bg4 e5 Bc8 e6 Nd7 b5 Nf4 e7 Rg7 Rg1 Ng4 h6 a3+ Ka2 Bc7 h7 Nc5 Nd2 Bf5 Bd7 Qc8 e8N Bd8 Qf3 d3 Nd6+ Ka8 Rg3 Ne5 Ng1 Bh4 b7+ Kb8 Qf8 d4 h8N Bh7 Ng6 Bg8 Kb1 Rh7 Qh6 a2+ Kb2 Kc7 b8N Kb6 Na6 Rb7 Be2 Ka7 Nc7 Rb8 Qf1 Rb6 Ndf3 d2 Rg5 d3 Bg4 Bg3 Ngh4 Qf5 Rg7 d1B Ng5 d2 N5f3 Rb7 Bc4 Be2 b6+ Kb8 Be6 Bf2 Bh5 Qh3 Bg6 Ra7 b7 Nfd3+ Kc2 Nb2 Bd3 Ra3 Qe3 Ka7 b8R Ra5 Rb4 Bg3 Qe1 Bf1 Rc4 d1B+ Kd2 Bde2 Kc2 Ra4 Qh6 Bf2 Bf4 Bg2 Bg3 Ra6 Rd1 a1N+ Kb1 Nab3 Qhd2 Nd4 Rc1 Nba4 Ka2 Rb6 Ra1 Rb1 Qf1 Rd1 Rb1 Nb2 Ka1 Rc1 Qfe1 Rd1 Qc2 Rc1 Qed2 Rf1 Qcd1 Be1
2b3kN/pNnP1n2/1B1RQ2B/3BrRbn/NrRB1n2/5q2/Q1BK4/b2b4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 e5 d4 h5 f4 c5 d6 h3 f6 h2 d7 c4 b6 e4 d5 c3 f5 e3 b5 e2 d6 h4 g5 h3 b7 c2 b6 Rh5 Ra6 Rh8 Nf3 Rh5 Be3 c1N Nh4 Nd3+ Kd2 Rh6 Qc2 Qe8 Ng6 Be7 Bd4 Rh7 Nc3 Qd8 Na4 Ne5 Nh8+ Kf8 g6 Qc7 d8N Nh6 f7 Be6 Qa2 Bc8 d7 Qc6 Rg1 h1N Rg4 Kg7 f8R h2 Re4 Nf7 f6+ Kh6 g7 Ng3 g8B h1B Bh3 Nh5 Bf5 Bf3 Rg4 Qd5 Bc2 Nd3 Rh4 Nf4 Rg4 Ne5 f7 Bg5 Rh4 Kg7 Rg4 Nc6 b8Q Nb4 Qd6 Rb8 b7 Qc6 Rh4 Nbd5 Qe6 Nc7 Rb6 Qe4 Rd6 Bg4 Bb6 Qf3 Bd4 Ra8 b8B e1B+ Kc1 Bc3 Nb7 Ba1 Kd2 Qg3 Bb6 Bd1 Bd4 Qf3 Rg4 Nb5 Bc7 Rb8 Bcb6 Nc7 Rg3 Qg4 Rc3 Qf3 Rc4 Rh6 Bgh7 Rf6 Bhe4 Rf5 Bd5 Kh7 Rd8 Kg7 f8B+ Kh7 Bh6 Nf7 Bb3 Re5 Rf8 Nd8 Rf5 Nf7 Bc2 Kg8 Nd8 Na6 Ba5 Rb3 Bab6 Nc7 Nb7 Rb4
2Nk1B1q/1B3pbb/1Rrr1P2/R1q1RB1K/7Q/1r2N2r/nr3QRQ/R1b5 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Bg7 d5 Kf8 Ra4 Nc5 Ra1 Nd7 e6 Bh6 exd7 Kg7 Ra2 Kf6 Ra1 Bf8 Ke2 a5 Kf3 c5 Kg4 e5 b4 a4 f4 e4 b6 h6 b5 a3 b7 a2 b8R h3 f5 c4 b6 h2 b7 c3 Kh5 e3 g4 c2 g5+ Kg7 g6 Kf6 g7 e2 Nd2 e1Q Nc4 Qe4 Nh3 Ra6 Nf2 Qg2 Ne3 Rc6 Qd2 Qc7 d8R Rh7 d7 Ke7 Rg1 Qh1 Ba6 Qe5 Bb2 c1B Ne4 Qd6 Rg4 Qc5 Ba3 Rh8 Nd6 Nf6+ Kh4 h5 g8B Bh6 Bh7 Bg7 Qf2 Ne4 Rg2 Nc3 Kg5 h4 Kh5 h3 Re8+ Kf6 Re4 Rd8 Ra4 Ke7 Ra5 Qg1 Bb4 h1R Bg6 h2 f6+ Kf8 Bf5 Qe1 Qh4 Qg3 Ba3 Qh3 Bb4 Rd1 Ba3 Re8 d8Q h1R Qb6 Rd3 Qb2 Rd8 Qf2 Be6 Nc8 Ke8 Bb4 Rdd6 Ba3 Kd8 Bb4 Rd7 d6 Bd5 Ba3 Be4 Bb4 Rd2 Ba3 Rb2 Bb4 Rdc7 d7 Rd6 Ba3 Rcc6 Bb4 Kc7 d8R Qh2 Rh8 Bb1 Rh6 Kd8 Rhg6 Rb3 R6g4 Bc2 Re4 Bd3 Re5 Bc2 Rb1 a1R Ra8 Na2 b8Q Be4 Bb7 Bd3 Rb2 Rb1 R8a6 Qh3 Rb6 Rh2 Rd2 R1b2 Rd1 Bd2 Ra1 Bc1 Bd7 Bh7 Bf5 Rdd3 Re4 Rh1 Qh2 Rdd6 Re5 Rf1 Qfg3 Rf3 Qf2 Rg3 Qhg1 Qh1 Qgh2 Rh3 Rg6 Qc2 Rg2 Rd7 Bf8 Bg8 Kg4 Qc5 Qhg1 Rf3 Qg5 Qh8 Qh2 Rdd6 Qgh4 Bh7 Kh5 Rh3
1rb5/2B4r/3rQp2/KB1RNN2/2R2R1q/N3rP2/Qn2qr1k/1qNQ2Nn w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 Kd2 Kd7 Kc3 e5 Kb4 c5+ Ka4 a5 b4 h5 g4 f6 f3 c4 g5 c3 b6 e4 b5 c2 g6 h3 g7 e3 b7 h4 b6 h2 Na3 e2 Bf4 e1R Rc1 h3 Bb5+ Nc6 b8Q Nh6 g8N Ra6 b7 Qe8 Ne7 Nf5 Qa7 Ng3 Nf5 Re3 Qa8 Qe4 b8Q Qd3 Qb6 Qe2 Qc5 Rb6 Qc4 Rh7 Qa2 Rb7 Qa6 Rb8 Bc4 Nb4 Bb5+ Kd8 d7 Nd3 Ng7 Ke7 d8R Kf7 d6+ Kg6 Nf5 Kh5 d5 Rd7 Be5 Rh7 d7 Kg5 Rb1 c1R d6 Rc6 Rb4 Rc2 Rc4 Kh5 Nd4 Kh4 Bf4 Rd2 Nb3 Rc2 Nc1 Rd2 Kb3 a4+ Kc3 Nb2+ Kb4 Rdd3 Ka5 Rd5 Rg8 Rd4 d8N Rd5 d7 Rd6 Nc2 a3 Nb7 Qg2 d8N Qe2 Qa1 a2 Nf7 Rc6 Na3 Rd6 Qb1 a1R Rg5 Ra2 Qa1 Ne4 Rd5 Nf2 Bg5+ Kg3 Ne5 Kg2 Bf4 Rd8 Nf7 Na4 Nd3 Qc2 Qe6 Qb1 Ne2 Rd2 Qd6 Nb2 Qe6 Rc2 Bc7 Rd7 Nbc5 Rd6 Nde5 Rd2 Qa2 Qd3 Qda1 Qc2 Rd1 h1Q Nh6 h2 Nf5 Qe1 Ncd3 h1Q Qc1 Qh4 Ng1 Qb1 Rdd4 Kh1 Rf4 Kh2 Qc2 Qf1 Nc1 Nh1 Qcb3 Rf2 Rd5 Qfd3 Qd1 Qe2
3r2rk/2N1q1N1/1p1QQRb1/QPn5/N4rN1/BB2br1K/1bNR4/r4bB1 w - - 0 1 illegal: No possible last move
qBr2QRb/4R1Nb/1K3nq1/1nn1pB2/q7/3NQNB1/n1B1P1q1/k1B3Q1 w - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 a4 a5 h3 b5 axb5 Ra6 h4 Rg6 Nh3 fxg4 Ng1 g3 Ra3 g4 Ra1 Rg5 hxg5 Be6 Qc2 Bd7 Qd1 Bc8 d4 Kf7 Kd2 c5 Ke3 h5 b4 g2 f4 e6 f5 c4 b6 a4 d6 c3 g6+ Kf6 d7 c2 b5 a3 g7 a2 b7 g3 d5 Ke5 d6 h4 f6 h3 f7 h2 b6 Rh4 Nf3+ Kf6 Nbd2 g1N Ne1 Ke5 Bh3 g2 Bf5 Na6 b8B Nf3 b7 Rh8 Rg1 Nf6 g8B h1Q Bgh7 Bg7 f8Q Nc5 Nd3+ Kd5 Qe7 Nd4 Nf3 Kc4 Rb1 Qf8 d8Q Kc3 d7 a1Q Bg3 Nb5 b8B Qa4 Qb6 Qh5 d8N Qg6 Rb4 Rg8 Re4 Bh8 Qf7 Qe8 Qf8 Kb3 Qa7 Ka2 Qae7 Ka1 Qe1 Nc7 Re5 Qa8 Kd4 Nb5+ Kc4 Qd7 Kb4 Ba6 Ka5 Qd4 Qa7 Qa4+ Kb6 Bc8 Qf2 Bb7 Qe3 Be4 Rd5 e5 Ne6 Qg7 Rd8 Qg6 Rh1 g1Q Ng7 Qg2 Re8 Na6 Re7 Nc5 Rh4 Qh5 Rg4 Qg6 Bd2 c1N Rg5 Na2 Bc1 Qb3 Qg1 Qd1 Qa3 Qda4 Qc3+ Kb1 Qd2 Ka1 Qde3 Qh2 Rg4 Qg2 Be6 Qd1 Nb4 Qg5 Qd8 Bg6 Ne8 Nd3 Bb3 Bf7 Bf5 Nc5 Nd3 Bg6 Ba4 Qb3 Qc8 Qb4 Bc2 Bh7 Qd8 Rf8 Qc8 Qh6 Rg8 Qg6 Ng7 Qbe4 Qe8 Qea4 Qf7 Re8 Qf8 Rc8
4r2Q/1R1Q1r2/bpR2R2/2BKQ3/3B1B2/2p1BNn1/2r1nb1P/1B1bnkNq w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 d4+ Kh4 a4 e5 f4 g5 d6 c5 f6 b6 h6 g4 h7 b3 f5 g3 a5 b2 d7 c4 a6 g2 f7 Ra7 f6 Rc7 a7 Qe7 d8B Rd7 a8Q Ba6 d5 Qb4 d6 Nh6 Bd3 Nf5 Be3 Qe1 Qd5 Nc6 Nd2 b1B Bc7 Bc2 Ndf3+ Kg4 Qd4 Ng3+ Kd5+ e4 Qe5 Nd4 Bb8 Bh6 f8B Rf7 d7 Nde2 Bfc5 Re8 h8B c3 d8Q Ba4 Bb1 Qf1 Qdd4 Bd1 Ra4 Bg5 Rc4 Bh4 Bg7 Ree7 Qh8 Re8 Qe7 Qe1 Bbf4 Qf1 Qde5 Qe1 Nh3 g1R Qd8 Rg2 Rg1 Rf2 Rg2 Qh1 Nhg1 Nd4 Qdc7 Rc2 Rd2 Nde2 Qcd6 Rfe7 f7 Rd7 f8R Rf7 Bed4 e3 Bgh6 Nc1 Rf2 e2 Bfe3 e1N Bhf4 Nce2 Qc7 Re6 Rb8 Re8 Rb7 Nc1 Ne2 Kh3 Rf1 Kg2 Neg1 Nce2 Qd7 Rd2 Bb4 Rc2 Rc6 Ne4 Bd6 Bf2 B6c5 N4g3 Nd2 Nf5 Bg5 Bg3 Rf4 Bf2 Ndf3 Nfg3 Rff6 Kf1 Bh6 Rd8 Bhf4 Re8
B2n1R1K/b2rRq2/kr2q2Q/5RN1/1bR1P3/2Q1Nq1R/5pBp/Bn1Q3b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 d4 c4 g4 f3 b4 f6 Kg6 Kc7 e4 Kb6 d6 f2 d5 h4 d7 f5 d6 f4 Rh3 a4 Nd2 f3 Bb2 c3 Rc1 c2 Bg2 f1Q Ba1 f2 Nc4+ Kb7 b6 a3 b5 a2 Nf3 Ra7 Ne3 Qe7 d8Q Qd7 Qf6 Ra4 Qc3 Qd8 d7 Qc7 d8R Ra7 Rd5 Qh1 Rf5 Ne7+ Kf6 Qf4 g6 Nbc6 g7 Nd8 g8Q Rh6+ Qg6 Be6 g5 Qg4 Rb1 c1B Rb4 Bd2 Rc4 Nd5+ Ke5 Bc5 Qf6 Bb4 g6 Qh5 g7 Qf7 g8B Bc1 Ng5 Rg6 Rf4 Bg4 Rf5 Bf3 Qh8 Bca3 Qh6 Bc5 Rh2 Bab4 Rh3 Kb8 b7 Rb6 Qdc1 Kc7 b8R Qd1 Rc8+ Kb7 Rc6 Qe2 Re6 Qd3 Qd1 Qe2 Bf1 Bh1 Bg2 Qf3 Re8 Rd6 b6 Ka6 b7 Rb6 b8R Rd7 Qcc1 Nc3 Re7 Nb1 Qc3 Q7h5 Bd5 Qf7 Rg3 h3 Ba8 h2 Rh3 Rg6 Rc8 Ba7 Rb8 Rb6 Rbc8 Ne6 Rf8 Nd8 Rc6 Qg8 Kf6 Qe6+ Kg7 Qf7+ Kh8 Qe6 Bb2 a1Q Rc4 Qa2 Ba1 Qf7 Rd4 Qad5 Rc4 Qde6
1kBN1qN1/n6B/2R1bQ2/4r3/1B1p2qn/b2NQ2R/p1n1PRRK/3brR2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kg3 f5 b4 a5 c4 d5 h4 Kd7 e6+ Kc7 e7 g4 e8R d3 b6+ Kb7 c5 d2 h6 d4 c6+ Ka6 h7 a4 b7 Ka7 h5 f4+ Kh2 f3 b5 f2 c7 a3 h6 a2 b6+ Ka6 Nh3 Bg7 Rf8 Nc6 b8N+ Kb7 Nf4 Qf6 Nd3 Qh4+ Bh3 f1Q Rf2 Qe7 Rg1 Bf8 Ba3 Na5 Qb3 d1B Bb4 Qf6 Nd2 Nc6 Rgg2 Qe6 Ne4 Nge7 Nf6 Ng6 Ng8 Na7 Nc6 Nh4 Rc1 Rb8 Nd8+ Ka8 Rc5 Qf5 Rc2 Be6 c8B Rb7 Qc3 Re7 b7+ Kb8 Qd2 Qf3 Rc6 Re8 Qe3 Qe4 Bd2 Ba3 Bb4 Qg6 Nf6 Rhg8 h8Q Qg7 h7 Qf8 Rf4 Qf3 Qg7 Qe4 h8R Qf5 Rf1 g3+ Kh1 Qe4 Bf5 Qg4 Bh7 Re7 Rgf2 g2+ Kh2 g1N Qf7 Rg6 Ng8 Rh6 Qf6 Ngf3+ Kh1 Ne1 Kh2 Rh5 Rg2 Nc2 Rff2 Re5 Rf1 Rc7 Rgf2 Nb5 Rg2 Ka7 b8R Rf7 Rb7+ Ka8 Ra7+ Kb8 Rgf2 Rg7 Rd7 Rgg5 Rg7 Na7 Rg6 Qh5 Rg7 Rg1 Rgg2 Qg4 Bg6 Nf5 Rh3 Nh4 Bh7 Qf7 Rf5 Qf8 R1f2 Re1 Rf1 Qe8 R5f2 Qf8
4Q1b1/n3QR2/1k1BN1Br/2R4r/2p1Rb2/Qn2PBRq/Rp3N2/1rb1Kq2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 a4 c5 h4 Kc7 h6 g5 a5 b5 d6+ Kb7 e6 f5 e7 c4 e8R g4 d5 g3 h7 f4 e3 g2 a6+ Ka7 h5 f3 h6 b3 d7 b4 d6 b2 Nh3 g1B Qa4 b3 Qa3 Ne7 Nf4 Rg8 h8Q Rg2 h7 Rd2 Ne6 Ng8 Nc3 b1R Nd1 Nc6 Bd3 Nf6 Ra2 Rdb2 Rh5 Ne4 Nf2 Bh2 Rc5 Kb6 a7 Qh4 d8R Qh3 d7 Nd2 Bg6 Bf4 Qg7 Rb8 a8B Na7 h8R Bb7 Qe7 Bd5 Rh7 Rb7 Ng5 Bg8 Rf7 Rc7 Bd5 Rc6 Ne6 Rd6 Bc6 Rd5 Rc8 Rh5 Rg5 Bg7 Rg3 Rc2 Rc7 Bb2 d8Q Rh6 Bb7 Rh5 Qa8 Rh6 Rc5 Rh5 Nd3 f2+ Kd1 Qh4 Rd8 Bc3 Re5 b2 Rdd5 Ba5 Qae8 Rh7 Ke2 Nb3+ Bd2 Rcc1 Bb4 Rh1 Bd6 Rh6 Rc5 Bd2 Bf3 Bc1 Re4 Rh3 Kd1 f1Q+ Ne1 Qg2 Nd3 Qg4 Nf2 R3h5 Ke2 Q4h3 Ke1 Qf1#
qq2bK2/3qN1Q1/1n1b1QB1/3Rn1p1/2r1P2R/k2Nrp2/4B1Q1/B1rR1Q1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 g5 Kc5 f5 d4 f4 e4 g3 h4 a4 b4 c6 d6+ Ke6 h5 f3 h6 g2 b6 a3 b5 a2 d5+ Kd7 h7 Nf6 b7 Ng8 e6+ Ke8 e7 Kd7 b6 Qe8 Rh4 Ra3 Ne2 g1R Nf4 Ra8 Nd3 Ra6 Nc3 Bh6 Be2 Ra3 Bb2 Nf6 Qf1 Ng4 Rd1 Ne5 Ba1 Bf8 Qg2 Rg8 h8Q Rg6 Qg7 Qf7 Bb2 a1Q Qh1 Qa2 Ba1 Rb3 Qg2 Qa8 Qh1 Re1 Qf1 Rb1 Qg2 Rc1 e8B+ Kd8 Qf1 Bd7 Qh1 Qf4 Qg2 Rf6 Bg6 Be8 Qh1 Re6 Qg2 Re7 d7 Qg3 Kd6 c5 Qh1 c4 Qg2 Rf7+ Ke6 Bd6 Qh1 Nbc6 Qf1 Na7 b8Q+ Nc8 b7 Qf4 Qa7 Kc7 d8R Qh2 Qa2 Kb6 b8Q+ Rb7 Qc2 Ka5 Rd7 Ra7 Qbb1 Nb6 Qd2 Rc7 Qda2+ Ba3 d6 Qg3 Nd5 Ka4 Ke7 c3 Qab2 c2 Kf8 Rc4 Ne7 Qh3 Rd8 Qh2 d7 Bd6 Rc8 Qh3 d8Q Qd7 Rc5 Qb8 Rd5 Qa8 Qd4 Ka3 Qdg1 Qb8 Qfg2 Qa8 Q1h1 Qb8 Bf1 Re3 Qb5 Rb1 Be2 c1Q Re1 Qc3 Rd1 Rc1 Qb1 Qa5 Qhf1 Na4 Qdb6 Qaa8 Qa6 Bc7 Qaf6 Nb6 Qfh1 Bd6 Rd2 R1c3 Qbf1 Rc2 Rd1 Rc1
2NB2b1/1QRB2q1/1n1r1b1k/1p6/qN2N3/Q1NRnN2/3BRp1P/b1Krr3 w - - 0 1 illegal: No possible last move, all moves rejected
1q1rR1BK/8/N1B1rbk1/pB2Qp2/RN1Q1BbP/R3n3/nBn5/2Nq1b2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kf3 f5 c4 Kf7 h4 a5 e4 d5 b4 d3 h6 d4 h7 g4+ Kf4 g3 e6+ Kg6 Ke5 g2 e7 d2 e8B+ Kg7 b6 d3 c5 Kh6 c6 Bc5 b5 Bf2 c7 Ra7 b7 Na6 b8Q Nc5 b6 Qg5 b7 Qg4 Bc6 Ne6 Rh3 Nd4 Ra4 Nb5 Na3 Qf3 Ne2 g1N Nc2 Nf6 Nb4 Rd8 h8B Kg6 Bb2 Nd4 Nc1 Bd7 c8B Nc2 Be2 Be8 Be6 Ra6 Bg8 Nd5 Bg7 Rb6 Bh6 Qg3+ Bf4 Nde3 Qc7 Bf7 b8N Bc4 N8a6 Bb5 Bf1 Ne2 Ke6 Qh2 e5 Nc3 Ke7 Bc4 e6 Na2 Qe5 Bg3 Be2 Bb5 Qg1 d1B Bf1 d2 Bc4 Rd3 Kf8 Bg4 e7 d1Q e8R Rd8 Bf1 Be1 Qf2 Bc3 Qd2 Rb7 Qdd4 Re7 Be2 Re6 Rg3 Kh5 Kg7 Bc4 Kh8 Kg6 Bef3 Bf1 Bb5 Qh1 Ba8 Qb7 Rh3 Qb8 Bac6 Nd5 Qc4 Bd4 Rha3 Nde3 Qd3 Bc5 Qc4 Be7 Qcd4 Bf6+
NQrB1n2/2RN4/r1Q1BRp1/4BP1B/1qbnb3/3pB3/k2q4/n1KRQ1b1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 d5 c4 a5 h4 e5 b4 d3 b6 d4 b7 a4 b5 g6 c5 e4 b6 a3 c6 a2 h6 Be7 h5 Bd6 h7 Qh4 f6 Ke6 f7 Kd5 f8R Kc4 c7 Ba3 h6 Qg3 f5 Ra7 Rf6 Ra4 Nf3 Qh4 Nc3 Bb4 Be2 Bd6 Qe1 Kb3 Ne5 Bb4 Nd7 Nc6 b8B Bb7 c8B Ra6 Be5 Bc5 Na4 e3+ Kd1 d2 Bh5 Ba8 b7 Bb6 b8Q Qf2 Rd6 Nf6 Rh4 Re8 h8B Nh7 Bhf6 Nf8 h7 Qg2 h8Q Qe4 Bb7 Rc8 Bd8 Qd5 Rf4 Qc4 Rf6 Qb4 Qg7 Bc5 Qe7 Ba7 Qed6 Bb6 Ke2 d1B+ Kd3 e2 Be3 Ba7 Nab6 Kb2 Qe6 Bb3 Rd1 a1N Rf1 Ka2 Rc1 Ne7 Bd5 Nc6 Qed6 Bb7 Na8 Bb6 Rc3 Bc4+ Kd2 d3 Be6 Nd4 Kc1 Be4 Qc6 Ba7 Qh4 Bc5 Rd1 e1Q Qg3 Qe2 Qe1 Ndc2 B3f4 Bg1 Be3 Nd4 Rb3 Qa4 Rb7 Qb4 Rc7 Qed2+
B6K/2BN4/Rr3P2/3B3Q/Np1kq1N1/2nBpn1q/rnb1RbbQ/3B3Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 b4 d6 b2 a5 c4 d7 h4 a6 h3 f6 Ke6 f7 c3 g6 h2 d5+ Kf6 a7 c2 g5+ Kg7 Kf5 e4 d6 Ba6 Nh3 Qc8 Nc3 b1Q Bd3 Rh5 Nf2 Rh8 Qh5 Nc6 Ng4 Bb7 Re1 h1B Na4 Bg2 Re2 Qb8 d8Q Nf6 d7 Qd6 Qb8 Rg8 d8Q Qc5+ Qd5 Bd6 f8N Qc3 Nd7 Ne5 Qc7 Rab8 a8B Bc5 Be3 Ba7 Bb6 c1N Qcd6 Rgc8 Bc7 Bf2 Ke6 e3 f5 Nf3 Qdh2 Ne4 Ke7 Ba6 Qc6 Rb6 f6+ Kg8 g7 Rcb8 Bc2 Nd3 Bd1 Nb2 Ke6 Bb7 Kf5 Qd4 Kg6 Nc3+ Qe4 Qd6 Nac5 Bf1 Kh6 Ra6 Q5h4 Kf7 Kh7 Qg3 Q4h3 Ne5 Qh5+ Ng6 Qeh1 Qh3 Ra5 Be4 Ra2 Rbb6 g8B+ Ke8 Bgd5 Bfg2 Bc4 Qd3 Bb5 Kf7 Ra1 Qd5 Ra4 Bc2 Bd3 Qe4 Ra2 Ra3 Ra1 Rb3 Ra6 Ra3 Na4 Ke6 Kg8 Nh4 g6 Nf3 g7 Ra2 Kh8 Qc6 Qh6 Kd5 g8B+ Kd4 Qh5 Qe4 Bf7 Ra1 Bfd5 Ra2
R1rNQ1R1/n3qR2/2bKp3/2R1r1B1/R1B3k1/1n1Q1N2/1QqPp2b/b3qB2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 h5 g4+ Kf4 b4 a5 d6 c6 g6 a4 d7 a3 g5 a2 g7 h4 g6 h3 b6 h2 b7 e3 b5 e2 b6 Kf5 f4 Rh3 Bb2 Rg3 Qa4 Rh3 Bf6 Rh5 Nf3 Rh8 Na3 Rh7 Nc4 Rh6 Na5 Rh5 Bg5 Nh6 g8R Kg4 g7 Nf5 Qc4 Qe8 d8R Nd4 f5 Bd7 f6 Qf7 Rc1 a1B Qd3 Qe6 f7 Nb3+ Kb4 Qe3 Kc4 c5 Kd5 c4 Nc6 c3 Rc2 Na6 b8Q Be8 Rc1 c2 b7 Qa7 Qe5 Rc8 b8Q Nb4+ Ke6 Qc7 Qb2 Qb7 Rd7 Qc7 Nd8 Nc6 Qbb5 Na7 Q5e5 Qb7 Rd4+ Qe4 Ra4 Qb4 Qb8 Bc6 Qbb5 Be4 Qe8 Bc6 Re1 c1Q Ke5 Qb1 Rc1 Qa2 Rc3 Qb1 Rc5 Qc2 Ke6 Rh3 Ke5 Rg3 Rg1 h1Q Rh8 Qh4 g8B Bg7+ Ke6 Be5 f8R Rg2 Bf7 Qe1 Rhg8 Rg3 Rh1 Bf4 Rh7 Rh3 Rhg7 Rh5 Rh7 Bh2 Rhg7 Bd5+ Kd7 Bb7 Bc4 e6 Rgf7 Bc6+ Ke7 Bg1 Kd6 Qa3 Rb7 Qb4 Rb8 Qb7 Ra8 Bh2+ Bf4+ Qg7 Rf7 Re5 Bg5 Qh7 Rff8 Qb7 Rf7 Qe7+
3RR1B1/1qNnK1b1/3P1rB1/k2b1BQ1/1N1pnp1q/q1r2B2/Q2Rb3/Q1B5 w - - 0 1 illegal: No proof kernel
R2N1B1n/5rNR/Q2p1Q2/1b1n2bQ/Pkp1rN2/4q2b/QnQ1BK1R/1q6 w - - 0 1 illegal: No proof kernel
k1q1q1N1/4Q3/1Kp3rN/1r1BB3/r2nQ3/2RRNNb1/2pNb2P/1nRQ2b1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxc4 a4 h5 axb5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kd7 Ke3 a5 Kd4 g5 Kc5 c6 d4 Kc7 f4 Kb7 b4 g4 d5 e5+ d6 g3 f6 g2 b6 e4 h6 a4 h7 e3 f5 a3 b5 c3 f7 e2 f6 e1Q Bc4 a2 Nf3 g1R Nbd2 c2 Bb2 Bg7 f8N Bf5 d7 Bh3 f7 Rg6 Ne6 Bf5 f8Q Rf6 Nf4 Re6 Qe7 Re2 Bd5 Qc8 Be5 Nf6 Ng2 Rg8 h8N Ra4 d8R+ Ka8 Nf7 Bd3 Ne3 Bh8 Nh6 Rg6 Rc1 a1B Rf1 Reg2 Rg1 R2g5 Rg3 Be2 b7+ Ka7 Kd6 Na6 b8N+ Ka8 b6 Bd4 Nd7 Nc5 Rh3 Nb3 b7+ Ka7 Rg3 Bb6 Rh3 Nd4 Rg3 Bc7+ Kc5 Bb8 Bf7 Nd5 Nf6 Bc7 Nfg8 Nc3 Bd5 Nb1 Rd6 Rf5 Rh3 Bf6 Rd8 Bh4 Rd6 Bg3 b8Q+ Ka6 Qb5+ Ka7 Qd3 Ka8 Qe4 Bb8 Kb6 Bf2 Bg7 Bg1 Rd7 Bg3 Be5 Ne6 Ba2 Rfg5 Rd3 Nd4 Bd5 Qf2 Nh4 Qff8 Nhf3 Qfe8 Rc3 Rg4 Ne1 B3f2 Qf4 Rh4 Nec4 Nb3+ Rhe3 Ra5 Nef3 Bg3 Qf5 Rc5 Red3 Re4 Ne3 Ra4 Qf4 Nd4 Qe4 Rb5#
5BNr/nq1QnkbN/2pQ4/BQ3b1R/2Np2rq/1q2N1N1/nP3R2/6KB w - - 0 1 illegal: No proof kernel
N1N2B2/1q3kr1/b1p1qq1P/1N2r3/Q1r1N2p/Q1n3K1/5R1R/2bnBNRB w - - 0 1 illegal: No possible last move, all moves rejected
4n2Q/1rq5/KP2N3/Qn4N1/2BB1bkq/pR1r1p1b/1R1BR1N1/b3NNr1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 c5 Ke2 f5 Kd3 g5 Kc4 a5 d4 f3 b4 f2 d6 Ke6 d5+ Kf6 d7 f4 b6 a4 Kb5 a3 b7 c4 h6 c3 h7 c2 e5+ Kf5 d6 g4 e6 g3 h5 g2 h6 Nf6 e7 Nd5 e8R Qe7 d8N Qg5 d7 Qe7 Rh2 Qe6 Qe1 Bc5 Nf3 g1Q Bc4 f1R Bd2 c1B Nf7 Nf6 d8N Qg2 N7g5 Qe4 Nde6 Rf8 h8Q Qc2 h7 Na6 b8B Bd6 Ba7 Be5 Bd4 Qg3 Ra2 Qc3 Rh3 Rg1 Rb2 Nc7+ Kb6 Ra4 b5 Rb4 Ka7 Kg4 b6 Qh4 Re7 Bd7 Re8 Nb5+ Ka6 Rf7 Re7 Bc7 Qe5 Bb8 Ne1 Ne8 Qd5 Qc2 Rhb3 f3 Qa8 Bf4 Qd5 Na7 Qa5 Qc3 Qf8 Nb5 h8N Ra4 Ng6 Rh7 Qh8 Be5 Bd5 Qc7 Ngf4 Rc4 Nfg2 Rc3 Bc4 Rd3 Ng7 Bf6 Re2 Bf5 N7e6 Rd7 B2c3 Bf4 Nd2 Rf7 Nf1 Bg7 Rb1 Re7 Bd2 Rf7 B4e3 Ba1 Bd4 Qe5 Nh3 Rb7 Nc5 Qc7 Ng5 Be6 R1b2 Bc8 Qf6 Kh5 Qf8 Bh3 Nce6 Kg4 Qh6 Bg3 Qh8 Bf4
Bq4K1/2B3B1/pq2npQQ/P3Bbq1/1Rbn4/1N1rN3/k2rRB1r/3Q3R w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 e5 b4 Bd6 bxc5 dxe4 Bh3 e3 Bg2 e4 Bf1 Be5 fxe5 Qd3 Qe2 Qd6 Qd1 Qd8 Ke2 Kd7 a4 Ke6 d4 Kd5 h4 Kc4 a5 b5 d5 g5 h6 a6 d6 g4 h7 g3 h5 g2 c6 b4 e6 b3 d7 b2 h6 Ra7 c7 Kb4 c4 Bb7 c8R Qf8 d8B Nc6 c5 Kc4 e7 Kb4 e8Q Ne5 c6 Qd6 c7 Nc4 Nf3 g1Q Nbd2 b1B Ra2 Qgg3 Nb3 Na3 Nfd2 Qg5 Bg2 Nb5 Nf1 Bd5 Rb8 Qb6 c8Q Rd7 Qc6 Ne7 Bc7 Ng6 Qee6 Nf8 Qg6 Ne6 Rb2 Rhd8 h8B Ka3 h7 Rd6 Be5 f6 h8B Bc2 Bg7 Rh8 Qc3 Rh2 Qcd2 Bb1 Re8 Bc2 Rb1+ Ka2 Bcb2 Rd8 Bg3 Qb8 Bf2 Rd7 Bbe5 Bc4+ Ke1 e2 Ne3 Rd6 Q2c1 Nbd4 Kd2 e1R Kc3 Re2 Re7 Qg8 Bf3 Rd2 Kb4 Nf4 Kc5 Qb8 Re8 Nde2 Bg2 R6d3 Re7 Nd4 Kd6 Nfe6 Kd7 Qb4 Ke8 Qb6 Kf7 Qb8 Re8 Qb6 Kg8 Qb8 Ng4 e3 Ba8 e2 Ne3 e1Q Na1 Qh4 Rb4 Qg5 Nb3 Qf1 Qdh5 Qfg2 Qhh6 Qgb7 Qd1 Qb6 Nd5 Rf3 Bf4 Nd8 Re2 Bf5 B4g3 Rd3 Bge5 Bb5 Ne3 Bc4+ Qf7 N8e6+ Qe8 Q8b7 Qeg6 Qb8+
1bB2n1r/4BNPQ/1Nq5/Q2b1pN1/rN2bnq1/Q1N5/r2B2pR/2RK2k1 w - - 0 1 illegal: No proof kernel
r3R3/1b2q1P1/1k1BnpNq/7R/1pbb1B1Q/RQ1B1N2/2nB1N2/r3nK1B w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Kd7 a4 b5 e4 h5 d4 c5 a5 Kc7 g6 h4 a6 c4 a7 b3 g5 h3 g7 c3 d6+ Kb7 d7 b2 e6 f6 e7 c2 e8R b4 d5 h2 g6 Rh6 d6 Ne7 g8N Kc6 e5 Rh8 g7 Ba6 e6 Bc4 Bd2 c1Q Nc3 b1N Bd3 Qa3 Kf1 Rh3 Ne4 Rf3+ Nf2 Rg3 Nf3 Na6 Qb3 Nd5 Ne7+ Kb6 Ng6 Ndc7 e7 Ne6 Ra2 Qc7 d8B Nac5 d7 Qa5 Ra1 Na3 Ra2 Nc2 Ra3 Rb8 a8B Rg1+ Ke2 Ra1 Bd5 Ne1 Kf1 Nd4 Bb7 Nce6 Bc6 Ka7 Bd5 Qd6 Bc7 Ra8 d8B Ndc2 Be4 Qf4 Bd6 Qh6 B8c7 Qa4 Bb8+ Kb6 B6f4 Qd7 Bbd6 Ncd4 Rc8 Qc7 e8Q Qe7 Qd7 Ndc2 Re8 Ned4 Qg4 Ne6 Rg1 h1B Qh4 Qh5 Rg5 Qh6 Nd4 Bf3 Rh5 Bh1 Bf5 Bb7 Be4 Qc7 Bh1 Be7 Bde5 Bc5 Bd6 Qe7 Nf3 Bd4
3NB1Q1/3Rr1p1/N2P1q2/n2bn2B/1n1b1QR1/1pr4N/2q1k1rB/R3NNK1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 f4 Kd6 Kf2 Kc5 d4+ Kb6 a4 e5 h6 c5 f6 e4 d6 c4 d5 Kc5 f7 b5 d7 c3 d6 c2 a5 b3 h5 b4 f5 b2 a6 b3 h7 Qc7 d8N Qb7 h6 Qb4 a7 Qa4 f6 Ba6 Qd5+ Kb4 Bb5 Qa3 Bf4 c1N Nf3 e3+ Kg1 e2 Rh4 Bb7 Be8 Na6 Ne1 Ne7 Nd2 Kc3 Nf1 b1Q Rg4 Rc8 a8B Nc6 Bh2 Be7 f8N Nab4 f7 Ncd3 Nfe6 Nde5 f8Q Qc2 Nc7 Qab2 Qdg8 Bf6 Na6 Na5 Bh5 Bd5 Bc6 Rc7 Bce8 Rc4 Qff7 Rf4 Qff8 Rf2 Qff7 Ned3 Qff8 Bd4 Qf4 Kc4 Qe6 Rg8 h8R Ne5 h7 Rf8 Qg8 Rf5 Qg3 R5f3 Qf4 Qbc3 Ne6 Q3b2 Ng5 Rc3 Nh3 Qf5 Qf7 Qf6 Rf8 Qc2 h8N Be6 Qg8 Bd5 Nf3 Kd3 Nf7 e1R Nd8 Re3 Rf7 Ke2 Rb7 Nec6 Ne1 Re7 Rc7 Ne5 Rd7 Rg2+
2R1nq1R/5pkB/bN3r2/1B1Q3n/N5Kp/1NPrB3/Rqr1n1Q1/1RbR4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 a5 Kf3 h5 g4 d5 e4 a4 b4 d3 g6 d2 b6 a3 b5 a2 g7 h4 b7 d4 e6 d3 b6 Bd7 e5 Ra4 g5 Rb4 e7 Bf5 g6 Qd4 Nc3 Bc8 Nge2 Qd7 Nd4 Rh7 Nb3 Rb5 Na4 Na6 b8R Rc5 b7 Nf6 g8B Rc6 g7 Rh6 Bh7 Qd8 g8Q Nh5 Qg2 Nc7 Rb1 a1Q Ra8 Rhe6 b8N Qb2 Kg4 Rf6+ Nd7 Ba6 Ndb6 Bh6 Qdf3 d1R Be3 d2 Qd5 Rc3 Bc4 Rc1 Rd1 Rd3 Bb5+ Rc6 Rf1 d1N Ra7 Nc3 Rd1 Ne2 c3 Qd6 Nc4 Kd7 e8R Rc2 Rh8 Ke7 e6 Kf6 e7 Kg7 e8R Qf8 Ncb6 Rf6 Rc8 Ne8 Nac5 Bb7 Ra2 Ba6 Nca4 Bf4 Bf2 Bd2 Be3 Bc1
b7/2N1BpR1/3N4/rQrB2PN/Q1Rnq3/qB2qb1n/K2k1bRp/3B2B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 b4 Ke5 d4+ Kd6 Kd2 h5 Kc2 a5 Kb3 c5 b6 c4+ Ka2 f3 b5 f2 e5+ Kd7 e6+ Kd6 g6 h4 g7 h3 e7 a4 e8B h2 g5 a3 b7 c3 b6 c2 Nd2 Qd7 Nh3 Rh4 Bg2 f1B Ne4+ Ke7 d6+ Ke6 d5+ Ke5 Be3 c1Q Bg1 Qe6 d7 Qc3 d8R Bd3 Nd6 Rc4 Qa4 Qe7 Nf4 Ra5 Rc1 Ra8 Nh5 Nc6 b8Q Bc2 b7 Nh6 g8B Bg4 Bh7 Ra5 Bf5 Qd2 Be6 Rcc5 B8d7 Bg7 Rg8 Qe3 Be8 Bh7 Rc4 Nd4 Bc6 Bh8 Bf3 Be4 Bd1 Bgf3 Rg7 Ng4 Qe8 Nf2 b8N Nh3 Na6 Qb7 Nc7 Qb4 Bf2 Qb7 Rg1 Qb4 Rg2 Qbe1 Nf6 Kf4 Bg1 Qb4 Nb7 Qbe1 d6 Qh4 d7 Qg4 Ka1 a2 d8B Qh4 Nd6 Bd5 Bb5 Ba8 Bd5 Qhe1 Be7 Qe4 Rf2 Ke3 Rg2+ Kd3 Nh5 Q1e3 Rg8 Be5 Rg7 Bg3 Bd7 Be1 B7e6 Bf2 Qeb5 Kd2 Bf5 Qe5 Bfc2 Q5e4 Kb2 Nb3 Ka3 Nd4+ Bb3 a1Q+ Kb4 Qab1 Ka3 Qc1+ Ka2 Qa3+
4QN1B/r2RRp2/1b1q2R1/Bnn1bP2/Rp1B2N1/2q2K2/bRr3Q1/k3qN2 w - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 e5 dxe5 c6 a4 Na6 axb5 Nb8 b4 Nf6 b6 Ng4 b5 Na6 b7 Nb8 b6 Nf6 Bg2 Ng8 Be4 Rh7 Bd3 Rh8 Bb5 cxb5 f4 Ke7 Kf2 Ke6 e4 d5 h4 g5 c4 a5 h6 g4 h5 g3+ Kf3 d4 h7 d3 h6 a4 c5 a3 f5+ Ke7 c6 d2 c7 g2 e6 Kd6 e5+ Kc5 e7 Kd4 e8Q a2 e6 Bd6 e7 Bb4 Nh3 g1B Qe2 d1Q Nf2 Ba5 Bd2 Nf6 Ng4 Be6 c8R Rf8 h8B Qd6 h7 Ra6 Rc7 Qe1 Rh6 Ra7 Rg6 Bh2 Qg2 Be5 Rd7 Na6 b8N Nd5 b7 Bb6 Ba5 Ndc7 Nd2 Nc5 Nf1 Kc4 Bf6 Kb3 h8B Ka3 Qc8 Bc4 e8R Be6 Ree7 b4 Qe8 Bb3 Rb1 a1Q Rb2 Ba2 Bfg7 Nb5 Bf6 Bg3 Bd4 Rg8 Rd8 Qac1 Nd7 Be5 b8R Rg7 Ra8 Qcc3+ Nge3 Rh7 Nf8 Rh5 Rdd7 Rh2 Qh1 Rc2 Qg2 Be6 Rb1 Ka2 Rb3 Qcd2 Rb2+ Ka1 Ng4 Ba2 Rc8 Nb3 Rc3 Nc5 Ra3 Qdc1 Ra4 Qcd2 Bg7 Qdc1 Bf6 Qcd2 Bh8 Qc3+
1bBQRQnR/2rB1p1N/pB1Rq2P/8/2B1Bn1K/1b1b4/Qr6/q1r2k1N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 b4 Ke4 h4 g5 h6 d5 c5 d3 b6 g4 h7 d4 b7 d2 c6 Ke3 b5 d3 e6 a6 h5 Qe7 b6 Ra7 h6 Qd7 e7 Nf6 e8B Qe7 c7 Qe6 Bd7 Bg7 Nf3 Rd8 h8R Qd6+ Kh4 Kf2 e4 g3 e5 g2 e6 g1R e7 Ng4 e8B Nf6 Qb3 d1B Ng5 d2 Bc4 Qe6 Nc3 Rf1 Nh7 Nc6 b8Q Bc2 b7 d1Q Be3+ Kg2 Bb6 Ne5 Qa2 Ng8 Ne4 Nd3 Nf2 Nf4 Rh2+ Kg1 Nh1+ Bd4 Rh3 Bb3 Re3 Be5 Qa8 Qd4 Rd1 Qa1 Rd6 Rc1 b8Q Rb7 Bc6 Rd7 Be4 Re7 Re2+ Kf1 Ba4 Bd7 Qf8 Bb5 Qad8 Rb8 c8B Rc7 Bcd5 Bd3 Bad7 Rbb7 Bc4 Bd4 Ba5 Ba7 Bb6 Bb8 Bf3 Qf5 Re8 Qe6 Be4 Ba4 Bc5 Rb2 Bb6 Bb3
3q2N1/1Rr1P2k/NQBn4/N1N1B3/q3R1QB/p1pR1N1K/2r1nb2/3nrb2 w - - 0 1 illegal: No possible last move, all moves rejected
k3Bnn1/N2PN1B1/2pr1N1R/1B2Rqbr/bb6/Q1N5/3N1p2/3KQRnq w - - 0 1 illegal: No possible last move
3kB1R1/1pR4R/nBR2nr1/RN1PQ1NQ/bq1pB3/2bq2bK/1r2N3/r7 w - - 0 1 illegal: No proof kernel
N7/1p2B1P1/r3BR2/r2Q3b/3q2nK/R1r2NBR/1bnpRNQq/2k1b1R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 g4 Kf7 a4 h5 f4 e5 Kf2 d5 Kg3 e4 c4 d4 c6 e3 c7 b3 f6 Kg6 c5 b2 f7 e2 f5+ Kh7 f6 Kg6 c6 d3 a5 Bh6 f8B Bd7 c8Q Qe7 f7 Qe3+ Nf3 Rh7 a6 Qe8 a7 Nf6 c7 Nc6 Nbd2 b1R Ra3 Nd4 Ne4 e1B+ Nf2 Ra1 Bf4 Qe5 Kh4 Bg7 Bg3 Nc2 Rh3 Be8 Be7 Qd4 f8R d2 Qd8 Rc1 c8R Rh6 Bc4 Bh8 Be6 Bf7 Rh1 Bg7 Qd5 Bh8 Kh3 h4 Qe2 Rh5 Rce8 Bg7 Kh2 h3 Qf1 Bh8 Qg2 Bg7 Bf4 Bh8 Kg3 h2 Rg1 h1Q Bb8 Kg7 g6 Kh6 g7 Kg6 g5 Ng4 Bf4 Rh6 g8R+ Kh5 Bc8 Ra6 g6+ Be5 g7 Kg6 Qh3 Qh2+ Kh4 Ra5 Rh8 Ra6 Bc5 Ra5 Re6+ Kf5 Be7 Ra6 Re8 Bh5 Rh7 Nb4 Bd7 Rc3 Bg3 Nc2 Rhh6 Rac8 a8N R8c5 Rc8 Rca5 Rcc6 Na1 Rb6 Nc2 Rbb3 Rcc5 Re3 Rc3 Re2 Rc8 Rhg6 Ne3 Ng5 Qa7 Bd8 Nc2 Be7 Na1 Ree3 Rc7 Bf4 Rc1 Reg3 Qe3 Nf3 Qd3 Qa2 Bb2 Bb8 Rc7 Re2+ Kf4 Rd6 Rc3 Qd5 Qe4 Bf5 Qd4 Rf6+ Rd6 Re5 Rda6 Bbd6 Nc2 Bc7 Qe4 Be6+ Ke3 Bcd6 Ke2 Bb8 Qh1 Qh2 Qg2 Rh3 Qh1 Qg2 Qh2 Ref5 Qc4 Bg3 Qd4 Re5+ Qe4 Nh1+ Kd1 Nf2+ Kc1 Qb5 Qd4 Qd5 Kb1 Re2 Kc1
1R4nN/pN1rr2k/4Qqbb/2r3Bn/2N1R3/1nB2BR1/p1PK4/BQ2B2q w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 Rh6 dxc5 Rh8 a4 bxa4 h4 Kf7 b4 d5 f4 e5 h6 g5 f6 Kg6 h5+ Kh7 c6 e4 f7 a3 f5 e3 f6 g4 c7 a2 b5 e2 b6 d4 b7 d3 Bg2 g3 Nh3 Qe7 Na3 Bd7 c8Q Bg4 Kd2 e1N Nf4 Qd8 Nc4 Bc5 f8B Qd5 f7 Qe5 Rh3 Qd6 Qe6 Nc6 b8R Qd4 Bf3 g2 Bg7 g1Q f8B Bf5 Rg3 Qf6 Bd6 Bd4 Bb4 Ng2 Bc3 Be4 Bf8 Bf5 Bfb4 Bg6 Rb1 Qh1 Ba5 Nge7 R1b4 Rc8 Ba1 Ng8 Ra4 Kh8 h7 Kg7 h8B+ Kh7 h6 Bc5 Ne2 Nf4 Nd4 Bf8 Nf5 Nd4 Nfd6 Nh5 Nb7 Rc5 B5c3 Qf7 Be5 Qf6 Bf4 Bg7 Bg5 Bf8 Bc1b2 Bg7 Qb1 Bf8 Ke3 d2 Bb4 d1R B2c3 Re1+ Kd2 Ree5 Ba5 Red5 Rb4 Rd7 Ra4 Kh8 h7 Bh6 Bab4 Kg7 h8N Kh7 Ke3 Re7 Be1 Rd7 Kd2 Re7 Bbc3 Rd7 Rf8 Re8 Rb4 Ree7 Rb8 Rc6 Rb5 Rc8 Re5 Rc5 Re4 Nb3+
3rQbR1/pBQR3b/1nR1Nq2/N7/k1Pq4/n3NNp1/6qr/1NB1nKQ1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 d5 b4 Kd7 f4 e5 c4 g5 f6 d3 h6 g4 f7 d4 b6 Kc6 b7 g3 f5 e4 h7 e3 b5+ Kc5 f6 Kb4 b6 e2 h5 Nh6 Ra6 Qe8 Bg2 Qb5 Nf3 Bc5 f8N Bd6 f7 Bh3 Nd7 Bf5 f8N Nf7 h6 Qe5 Ne6 Qd5 Nf6 Bf8 Ng4 Nd6 Ne3 Nd7 b8N Nb5 b7 Na3 Rc6 Nb6 Rh5 Bg6 Rg5 Qd8 Rd5 Qf6 Rd7 Be4 Na6+ Ka5 Nac5 Rd8 Nb3+ Ka4 b8Q Bf5 Qc7 Bg6 Kd2 Be4 Qg1 e1N Kd1 d2 Ke2 d1Q+ Kf1 d3 Na5 d2 Bh1 Qc2 Bg2 Rg8 h8Q d1Q h7 Qdd4 Bh1 Rg4 Qg8 Qcd2 h8R Bh7 Qf7 Qh2 Qe8 Rh4 Rg8 Qhb2 Bg2 Rh2 Rc5 Qfh4 Nfd2 Rh1 Bb7 Rh2 Rc6 Qhf6+ Nf3 Qg2+
2kb1Nr1/Q2NQBp1/n7/2BQ2n1/2P1bRn1/nR1N1r2/2K2B1p/1n3QQq w - - 0 1 illegal: No proof kernel
2qbBQ2/rn1PQ1BN/6Rb/1n3p1N/R1r2R1K/1pBb3Q/3Bb3/2bk2B1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 h4 f5 e4 c5 a4 b5 d4 c4 e6+ Kd6 a5 c3 h6 g4 h7 b3 a6 b4 e7 b2 e8R b3 e5+ Kc7 d6+ Kb6 d5 Kc5 h5 Kb4 h6 c2 a7 Qb6 d7 Qe6 d8B Qf6 d6 Bb7 e6 Qf7 e7 Bf3 Nd2 Kc3 Ne4+ Kb4 Rh4 b1B Nf6 Kc3 Ra4 Nc6 Nh5 Qg6 Nh3 Qf7 Ng5 Nf6 Bb5 Rc8 a8Q Nd5 Qh1 Nc7 Qh3 Qc4 Bd2+ Kd3 Qa7 Ke2 Qb8 Bg7 Rg8 c1B e8Q+ Kd1 Qe7 Na5 Be8 Nb7 d7 Nb5 Bb6 Be2 Bg1 Bbd3 Qbd6 Bf8 Rg6 Ra8 Qdf6 Ra7 Qfg7 Rg8 h8B Qc8 Qgf6 Bg7 h7 Bh6 Bg7 Rf8 h8B Rg8 Kg2 g3 Rhf4 Rf8 Nh7 Rg8 Kh1 g2+ Kh2 Rf8 Kg3 Rg8 Bf2 g1B Kh4 Bh2 Bg1 Rf8 Rf3 Bc7 Rff4 Bd8 Qfd6 Rg8 Bgc3 Rf8 Bhg7 Rf6 Qc5 Rc6 Qd6 Rc5 Qdf6 Rc7 Qff8 Rc4
4nR2/b1q1k3/3N2B1/1QQ3RQ/2K1nBrp/N3BPrp/6QR/1nr1nb1Q w - - 0 1 illegal: No possible last move
2BN1BQ1/1NnNBB1b/n4q2/1Q5r/1QnR1p1P/R5p1/2K2r2/brBr3k w - - 0 1 illegal: No possible last move
Q4Rrk/K1Br1bbB/N1B2R2/8/1pp1Rbn1/2N1Pn1R/1QQ2b2/1Rn4q w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 Kf2 b5 Ke3 c5 d4 g5 h4 f5 a4 Kf7 e6+ Kg7 a6 c4 a5 b4 h5 g3 d6 g2 a7 g4 d7 g3 h6+ Kh7 a6 Bd6 e7 Qa5 d8R Be5 e8R Bf6 d5 Bd7 d6 Qa2 Rh3 Be6 d7 Nc6 Na3 Nce7 Qc2 Qb2 Rb1 Be5 Nb5 Ng6 Nc7 f4+ Ke4 f3 Bf4 f2 e3 Qc3 Bd3 f1N Ne2 Qe1 Nc3 g1B Rf8 g2 Rde8 Bg7 d8R Qc1 Rd6 Bf7 Rf6 Nd2+ Kd4 Bh2 Kc5 g1B Kb6 Nf3 Re4 Rd8 a8B Rd7 a7 Nge5 Bc6 Bf2 a8Q Qh1 Na6 Bhg3 Be2 Nd3 Bc7 Nc1 Ka7 Bd6 Bd3 Bf4 Rf5 Kg6 h7 Nh6 Rf6+ Kg5 Bd5 Ng4 Bc6 Rg8 h8Q Bh6 Rf5+ Kg6 Qe5 Kh7 Rf6 Bg5 Qh2 Bf4 Qb2 Kh8 Qg2 B2g3 Qgc2 Bh4 Ree8 Be1 Bh7 Bg7 Re4 Bf2
r5B1/2NQ1nQ1/3qrNb1/b1QNp1R1/1RKN2N1/1B1n1pB1/3b1P2/2k1n1n1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 Ke2 Kd7 d4 Ke6 h4 Kd5 c4+ Ke6 c6 Kf5 c7 a5 b6 g5 h6 e5 h7 f6 h5 e3 Kd3 Kf4 h6 a4 c5 a3 c6 g4 b7 a2 d5 f5 d6 g3 d7 g2 Kc4 Na6 b8N Qg5 d8N Qg4 Rh4 Bd7 c8B Nc7 Ne6+ Ke4 Ne2 g1N N2d4 e2 Bf4 e1B Bg3 Nb5 c7 Be8 Nd7 f4 Ba6 f3 c8Q Ba5 Qc5 Bg6 Nc7 Ne7 Qa4 Rg8 h8Q Qf4 h7 Nd5 Qg7 Nb4 h8N Nd3 Nf7 Rh8 Bh3 Rh6 Be6 Be7 Rh5 Qf6 Rg5 Bd2 Bc8 Bd8 Qaa7 Qe7 Qa4 Qd6 Ba6 Rh8 Nh6 Re8 Bg8 Re7 Ng4 Re6 Ne8 B8a5 Nc7 Na7 Qd1 Nc6 Bb5 Nd8 Ba4 Nf7 Bb3 Ne1 Kb5 Kd3 Ndf6 Nc2 Nc3 Ne1 Rb1 a1N N3d5 Nac2 Qa7 Nb4 Qc1 Be3 Qcc5 Kd2 Kc4 Nbd3 Qb7 Bf4 Qc8 Be3 Qd7 Bf4 Ba2 Be3 Rb4 Kc1 Bb3 Bd2
B3N1N1/2Q3b1/2Q2RQB/1NNp2p1/3N1KPn/2n2R2/3rr1kn/1bRq2rn w - - 0 1 illegal: No possible last move
2kb1rQN/1nBNRr1R/q7/p3n3/b1PQ2B1/5N1r/n2Q3p/KB1QQn2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 e5 Kc2 d5 g4 Kd7 b4 h5 Kb2 h4 f4 h3 b6 d3 b5 d2 b7 e4 b6 e3 g6 e2 g5 e1R f6 d4 g7 d3 f5 Bb4 g6 Qe8 f7 Re4 f8N+ Kd8 f6 Be7 f7 Nf6 g8B Bf5 g7 Re5 Ne2 Rh4 Nf4 Re3 Be2 Bd7 Bh7 Ra6 g8Q Nc6 Bg4 Re1 N4g6 Ra8 Nh8 Ne5 Be4 Bb5 Nd7 Ba4 f8Q Rf1 Qh6 Qf8 Qd5 Ne8 Qd4 Rf7 Qhd6 Rc8 b8Q Qh6 b7 Qf6 Qb4 Qa6 Q8d6 Ra8 Qe1 d1N+ Ka2 Rb8 Bf4 Ne3 Nd2 Nf1 Nf3 d2 Bb1 d1N Qbd2 Nc3+ Kb2 Rc8 b8Q Na2 Q6d5 Bg5 Qb3 Be7 Qbd1 Nd6 Bh2 Nb7 Bg3 Rf8 Qg8 Rc7 Rh2 Kc8 Bf4 Nc3 Ra2 Bg5 Ka1 Bd8 Ra3 Na2 Re3 Rc6 Ree2 Rcf6 Re3 R6f7 Rh1 Nd3 Bc7 Rh6 Re7 Ne5 Rg1 h2 Rg3 Rb6 Rh3 Rb3 Rh7 Re3 Ng1 Rg3 Nf3 Rh3
3r1kB1/8/3qB2p/1n1N3r/pr2Rn2/B1BBQ2n/K3NnRP/1N1R1bQb w - - 0 1 legal: proof: f4 b5 d4 f5 a4 e5 axb5 c5 g3 cxd4 Nf3 Be7 Ng1 Bg5 fxe5 f4 Ra4 f3 Ra1 Bf4 gxf4 Ba6 Na3 Bb7 Nb1 Bc8 Kd2 a5 b4 g5 c4 d5 Kc2 d3+ Kb3 d4 e4 a4+ Ka2 h6 b6 g4 b7 f2 b5 g3 b6 g2 e6 d2 e7 d3 c5 Bg4 e5 Nf6 c6 Nh5 f5 Ra7 c7 Ra5 c8B Ra7 f6 Ra6 Ba3 Ng3 Ne2 g1R Be6 Nd7 b8N Qc8 b7 Qd8 Nc6 Nf5 b8R Nd6 Nb4 Ra5 Nd5 Nf8 Rb4 Ng6 Re4 Nb5 Bb2 Qd6 Bc3 Rg3 Rg1 Bf3 Rg2 Nf4 Bg8 Rg4 f7+ Kd7 f8B Ke8 Qe1 d1N Be6 d2 Bg8 Kd7 e8B+ Kd8 e6 Rh4 Rg1 Bh1 Bd7 Rh5 Bc8 Ke8 e7 Ra7 Bce6 Rb7 Rg2 Rb6 Nd4 Rb8 Bc4 f1B Bd3 Nf2 Ne2 N2h3 Qf2 d1N Qg1 Qb4 Nd2 Ndf2 Rd1 Rd8 Nb1 Rh7 Bb2 Rf7 Ba3 Qd6 Bg7 Ng6 Bc3 Rf4 Re3 Rb4 Re4 Ngf4 Bef7+ Kd7 e8Q+ Kc8 Qe5 Kd7 Be6+ Ke8 Qg5 Kf8 Qg3 Re5 Qe3 Rh5
QB3BkB/rr1q1n1r/7p/2p2BPR/1K1n2Q1/1n1bR2R/3BrNQ1/2b4N w - - 0 1 illegal: No possible last move, all moves rejected
3k4/3rn3/6pQ/KBBRQQB1/bR1BP2N/1Rb3pr/4r1N1/qnn1nB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 a5 b4 f5 d4 c5 Kd2 f4 Kc3 g6 e4 g3 d6 f3 d7+ Ke7 e6 c4 d5 f2 d6+ Kf6 e7 a4 e8B a3 b6 a2 b7 Be7 h5 Nc6 b8Q Na5 h6 Qc7 d8B Ra6 h7 Bd7 b5 Bc8 Kb4 c3 b6 c2 b7 Bf5 Qf3 Qc6 Nh3 Qc7 Bg5+ Ke6 Nd2 c1N Beb5 Qc6 Nf4+ Kd7 Ng2 Nab3 Rb1 a1N Bb6 Ra7 Bc5 Bf6 Qf8 Ne7 Qh6 Kd8 d7 Qa6 b8B Bg4 Qf5 Bd1 Nf3 Nd2 Be5 Ba4 Rb3 Nb1 Nfh4 Bg7 Bed4 Nc2+ Kc4 Ne1 Kb4 Rb7 Rh2 Qf6 Ka5 Rc7 Ba7 Rc2 Bac5 Re2 Rb4 Qf7 Rh1 Qa2 Rb3 Qa1 Rg1 Kc7 d8R Be5 Rd5 Rd8 h8Q Rd7 Q8g7 Kd8 Bde3 Bd4 Qge5 Bb2 Rb4 Bc3 Bed4 Re3 Bfd3 f1R Be2 Rf2 Rf1 Rf4 Rf3 Rg4 Bf1 Re2 Bf4 Rg5 Bfe3 Rh5 Bg5 Bd2 Rb3 Bc3 Nf3 Rh2 Nfh4 Rh3
B1bB2b1/1N1NBN2/rRPn1RKQ/1R4bn/1nk1r3/p1bNpN2/5q2/7Q w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kd3 e5 Ke4 g5 h4 a5 f4 d6 b4 a4 c4 d3 c5 a3 f6 Ke6 f5+ Kf7 b6 d2 h6 g4 b5 g3 h7 g2 h5 Nh6 b7 Nd7 b8N Bb7+ Nc6 Be7 b6 Ra6 Nc3 Re8 h8N+ Kf8 f7 Nb8 Nd5 Ba8 b7 Ng8 h6 Qb6 Na5 Nc6 b8N Bb7 h7 Bc8 Rh6 Qa7 Qf3 d1B Rb1 Bb3 Nb4 Bf6 Be2 Ke7 f8R Ba2 Bf4 Bg5 f6+ Ke6 Nd7 Re7 f7+ Nf6+ Ke3 e4 Bc4+ Kf5 Bd5 Nh5 Qf1 Re8 Nf3 Bb3 Qh1 g1B+ Ke2 Bh2 Ke3 Bg3 Rg6 Be1 Rh6 Bc3 Re6 Ne5 Ba8 d5 Nb7 Nc6 Rd6 Bd8 Bg5 d4+ Kf2 d3 Ke3 d2 Nd3 Bc4 Rb5 Nb4 Rg6 Re7 Bf6 Ke6 Bg5+ Nf6 Kf4 Kd5 Kf5 Nh5 Re6 d1N Kg6 Nb2 Bh4 Bc7 Bf6 Re8 Bd8 Bf4 Rc6 Bg5 Re6 Ra4 Ra6 Bb3 c6+ Qc5 Rab6 Ra6 Rg8 Re7 f8B Nc4 Rg7 Nd6 Rf7 Re5 Rf6 Bc4 Ng1 Kd4 Bfe7 Bg8 Nf7 Kc4 h8Q Qf2 Qh6 e3 Nf3 Re4
r1R2B2/Rn3Qnr/qKpN4/3B2B1/R2pb3/1NRP2k1/1Q1Q1rrn/b5R1 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 a4 Nc6 c3 Nd4 cxb4 Nc2+ Ke2 Rh6 a5 Rh8 a6 Bxa6+ b5 Bc8 Kd3 Kf7 Kc4 Kf6 Kc5 Kg5 h4+ Kf4 b4 d5 f6 g5 f7 a5 h6 g4 b6 a4 b5 d4 h5 c6 h7 a3 d3+ Ne3 h6 g3 b7 g2 b8R a2 b6 Ba6 b7 Qd6+ Kb6 e5 Nd2 e4 Nb3 Qe7 Qd2 Qe6 Nf3 g1R Ne5 Ba3 f8B Rg2 Nf7 Bb2 Rg1 Ne7 Nd6 Qc4 f3 Rf2 Bg2 Kg3 f4 Nf1 f5 e3 f6 e2 f7 e1R Bd5+ Rg2 Rc8 Re2 b8R Nh2 Rb7 Bb5 Ra7 Nf5 Rb1 a1N Ra4 Rg8 h8R Rf2 h7 Ng7 Rc7 Bc3 Rca7 Ba6 Qb2 Bc8 Bg5 Bf5 Rbc1 Be4 Rc2 Ne6 Rcc1 Rg7 Qd2 Bb2 Rg8 Bc3 h8Q Rh7 Qf6 Bb2 Rc3 Ng7 Qe7 Bf5 Qee2 Be4 Nc1 Nb3 Rh8 Nc5 Nb3 Ba3 Qb2 Bb4 Qed2 Nb7 Bfe7 Ba3 f8Q Kh3 Qa1 Bc1 Qf7 Kg3 Rc8 Bb2 Qa3 Ba1 Bf8 Bf3 Qac1 Be4 Qcb2 Qa6+
b1r1Bq2/b3BBr1/1Np4R/1Q1RQbpb/1R2rR2/k3nP2/3n3R/3K1QN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 d4 Kd6 a4 e5 h6 b5 h5 g5 h7 e4 h6 e3 f6 b3 f7 b4 f3 e2 a5 b2 a6 b3 a7 Bb7 Ra4 Ba6 Rb4 Bc8 Rh2 Ne7 Na3 b1B Nc4+ Kd7 d6 Kc6 d5+ Kc5 d7 b2 d6 Bc2 Nb6 b1B Ba3 Rg8 h8Q Bg6 h7 Nbc6 Qe5+ Nd5 h8R Nd4 R8h6 Bh5 Qd3 Bg7 f8R Bb7 Rf4 Qf8 d8R Nb3 d7 Rc8 a8B Nd2 Bh3 Bf6 Be6 Rg7 Bf7 Bc6 Qb3 Bf5 Bb7 Be7 Ba6 Bb7 Bb5 Ba8 Qb1 Bh7 Qbf5 B7g6 Qh3 Bf5 Qf1 Bf6 Re8 Be7 d8Q Bd6 Bd7 c6 Re7 Bb8 Bde8 Ba7 Rd7 Rc7 Qb8 Rc8 Ra4+ Kb5 Bc5 Ne3 Rab4+ Ka6 Rd5 Ka5 Kf2 e1R Qb7 Rc1 Ke2 Rc4 Qbb8 Re4 Qb7 Ng4+ Kd1 Ne3+ Ke1 Nc2+ Kd1 Ne1 Nd7 Ng2 Be7+ Bc5 Rb6 Ka4 Rb4+ Ka3 Qbb5 Ba7 Nb6 Ne3+
1QBk2n1/2RB2N1/1Bp3B1/1QKbpn2/2Qq1bb1/P5b1/r1B2Rrr/6RN w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 Ke2 e5 f4 h5 g4 b5 d4 c6 g6 h4 f5 h3 f6 h2 g5 b4 f7+ Kd7 a3 b3 g7 e3 Kd3 b2 Kc4 e2 a6 e1B g6 Rh7 d6 Qf6 a7 Kd8 d7 Bc3 d5 Qh4+ Qg4 Qh5 Bd3 Bd4 Nd2 b1R Ndf3 Bb4 f8R+ Ke7 Ne2 Bb2 Be3 Qh6 Bc2 B2c3 Nh4 Rb3 Ng3 Na6 Rag1 Bd6 Bb6 Rb5 Rf2 Bb7 Nhf5+ Kf6 d8Q+ Be7 d6 Nc5 d7 Rh8 Qb8 Qd2 d8Q Bc8 Qd3 Nb7 Qd5 Rb1 Qb5 Nd6+ Kc5 Rb2 Qd4 Ra2 Qdc4 Nh6 g8B Ba5 Bh7 Ng8 Ng7+ Nf5+ Qd6+ Be6 Re2 Bd8 Qb8 Ke7 Rf2 Bd7 Rb1 Qf4 Rhg1 Bd2 Nh1 Be6 Rb2 Kd7 Rb3 Bh4 Rd3+ Ke7 Rd8 Bc1 Rc8 Bg3 Rc7+ Bd7 Ne8 Qe4 g7 Bcf4 Bg6 Rh3 Qb7 Rc8 a8B Kd8 Qb8 Be6 Bb7 Qd4+ Kb4 Bd5 Ba6 Bf3 Bb7 Bg4 Ba6 Nge7 g8B Rh6 Be6 Ng8 Ng7 Rh4 Bd7 Rh7 Rff1 Rh4 Nf2 h1B Bb7 Bg2 Nh1 Bd5 Rf2 Rh2 Ba6 Ke7 Bb7 Re8 Bbc8 Kd8 Bf7 Re6 Bfe8 Reh6 Bf7 Rg2 Bg6 Qd1 Kc5 Rhh2 Qc3 Qd2 Qcc4 Qd4+
2R1n3/3KQNk1/RRp2rpr/Q3n3/1b1R4/1rPqn2b/R1rN1B1N/4B2Q w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Nh6 fxg5 Ng8 g6 Bf8 g4 Nh6 g5 Ng8 g7 Ba3 g6 Nf6 g8N Ne4 g7 Be7 Bh3 Bf8 Bf5 Nf6 Bg6 hxg6 Kd2 d5 Ke3 a5 Kd4 c6 e4 a4 b4 a3 h4 a2 h5 Ra3 c3 Be6 h6 Nh7 b6 f5 b7 Kf7 b5 f4 b6 f3 Bd2 f2 Rh4 f1R Be1 Bb4 Nf3 Qg5 Qa4 Rh1 Qa5 Qe7 Nbd2 Bf5 e6+ Ke8 Ke5 d4 Nh2 Qd8 e7 Kf7 e8R Nf8 h7 Qg5 Rc8 Na6 b8B d3 b7 Qg2 Ba7 Qh3 b8R Rb3 Baf2 Rf1 Rb6 Nc7 Rf4 Ne8 Nh6+ Ke7 g8R Nd7+ Kd4 Kf6 Nf7 Ne5 Ra6 Ng4 e5+ Ke7 e6 Kf6 e7 Qg3 Rb1 a1R Rb2 Rd1 Ra2 Rc1 Rb8 Qh3 Rbb6 Rc2 Rf8 Qe3+ Kc4 Kg7 Rd4 Nef6 Rfa8 Ne8 Rc8 Bd7 Bg1 Rf6 Bgf2 Nc7 e8Q Bf5 Nb1 d2 Qe7 d1N Nd2 Ne8 Qe6 Bf8 Qe7 Qd3+ Kc5 Bd7 Rbb4 Nde3 Kb6 Nd6 Kc7 Ne8+ Kd8 Ne5 Rb5 Bh3 Rbb6 N5g4 Kd7 Rg8 Qd8 Bb4 h8Q+ Kf8 Qh4 Kg7 Qhh5 Rh8 Qe7 Rh7 Qhd5 Rh6 Qh1 Ne5+
1b1R1NrQ/2bQ1B2/p1b1N3/1bn3RN/1nKN2Qp/rR4BP/1q1k3N/6n1 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 Ke7 Kd3 Ke6 f4 Kd5 e4+ Ke6 c4 h5 f5+ Kf7 f6 Kg6 b6 d5 f7 a6 h3 g3 b7 h4 e6 d4 e5 Kf5 c6 g5 c7 g4 c5 g2 e7 g3 e8N Be7 f8N Qd5 c6 Bc5 e6 Qd7 e7 Nf6 Bf4 Rg8 Ra3 Ne4 Ne2 g1B Nd2 g2 Nf6 Bh2 e8N g1N Nf3 Ba7 Rb3 Nc5+ Kc4 d3 Nh5 Ke4 Ned4 d2 Bg3 Qg7 Bg2 Bd7 c8R Bb6 c7 Nc6 b8Q Nb4 Rd8 Bc6 c8Q Bc7 Qd7 Ra7 Qbc8 Rb7 Bf1 Bb8 Nc7 Rb5 Nce6 Ra5 Bd3+ Ke3 Qa1 d1B Bg6+ Nbd3 Bf7 Ra3 Rc3 Bda4 Rb3 Ne2 Rhb1 Ng1 Rb5 Nb4 Rb3+ Ncd3 Rg5 Qe5 Ne2 Qb2 N2d4 Bc7 Be1 Bhf4 Nh2 Bb8 Bf2+ Kd2 Bg3 Bfc7 Qd1+ Ke3 Qg4 Kd2 Qd5 Nc5 Qcd7 Nbd3 Qe5 Nb4 Qh8 Bab5+
1n1Q1B2/1Br2Q1Q/p2Nq1R1/P2K2rN/2R5/N1b1N3/n2R2p1/bbnnN1k1 w - - 0 1 illegal: No possible last move
1r1b2nQ/2b1N3/p3R1BP/B1NNq1pR/1rb1B3/3rb1QR/2B2B1n/2K2k2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 d4 g5 Kd2 c5 e4 f5 b4 g3 d6 Ke6 h5 a6 d7 g2 h6 f4 d5+ Kf7 b6 Kg6 b5 f3 b7 c4 e6 f2 e5 Kf5 b6 Kf4 e7 Kg3 e8B Ba3 e6 Ne7 d6 Rh7 Rh5 Ng6 e7 Rh8 Qe1 Nc6 b8Q Nd4 b7 Nf8 Bg6 Bb4+ Nc3 Nh7 e8B Qa5 d8R Qd5 d7+ Bd6 Bc2 Qe5 Bfd3 Bc7 Nh3 g1B Beg6 Kg2 Re8 f1R d8B Rf3 Ne4 Be6 Nc5 Nf6 Ra3 Ng8 Bde4 c3+ Kd1 Ra7 Be3 Bc4 Qg3+ Kf1 Bf2 Rd3+ Kc1 Nf3 Re6 Nh2 Nf4 Ra8 Qc8 Rb8 Nd5 Rh7 Rb3 Rd7 Ra3 Rd6 Rb3 Rb6 Ra3 Rb4 Rb3 Bd6 Ba5 Bc7 Qe8 Nf6 Qh8 Ng8 Bd1 c2 Rc3 Rc8 b8N Bd8 Nc6 Rcb8 Nce7 Bc7 Be1 Bd4 Bf2 Bd8 Na4 B4b6 Nc5 Bbc7 Qh4 Rd2 Rh3 Rd3 Qg3 Rf3 Kd2 c1B+ Kc2 Bb3+ Kb1 Rd3 Bc2 Bf4 Be8 Be3 B8g6 Bd4 Kc1 Bc4 Nb3 Bdb6 Nc5 Ba7 Nd7 Bd4 Nc5 Be3+
1r1bQr1Q/1r2KBRP/NBBN3n/3rp2R/2q5/np4B1/bkB5/b1R1N3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 a4 e5 h4 g4 c4 g3 f4 g2 a5 b3 c6 b4 h6 b2 h7 b3 c5 d6 c7 Bb7+ c6 Ra7 c8B Na6 h5 Bh6 Nd2 b1R Ne4+ Ke7 f6+ Kf7 f5 Ba8 Be6+ Kf8 f7 Ke7 f8B+ Ke8 f6 Qc8 Bd3 Bd2 h6 Bc3 Nc5 Rb7 Nf3 g1B c7 Bb2 Kc6 d5 Kd6 d4 Rh5 Nb4 a6 Nc2 a7 Na3 Bc2 d3 Na6 d2 Ne1 Bb6 Bd5 Qg4 c8N Qc4 f7+ Kd8 Ke6 Bc7 Bc5 Bc3 Qf3 d1R Bf4 Rbc1 Rb1 Ba1 Nd6 Rd3 Bd4 Rcd1 Qh3 Rf3 Bb6 Rd2 Rc1 Rd4 Kf5 Kd7 f8R Rd2 Be6+ Kc6 Bf7 Rd5 Ke6 Rf1 Bg3 Rf5 Ne4 Kb5 Nd6+ Ka4 Kd7 Rf1 Qe6 Rf2 Qe8 Rf6 Nb8 Kb4 Na6+ Kc3 Bd3+ Kb2 Bc2 Ne7 Rg8 Nf5 Rg7 Rg8 Bg6 Rff8 Bf7 Rh8 Qe6 Rhg8 h8Q Rfb8 h7 Rgf8 Qe8 Nh6 Be3 Rbb5 Ke6 Bc6 a8B R5b7 Bg1 Bd7+ Kf6 Bf5 Bb6 Bg6 Ke7 Bf5 Bd1 Bb1 Bc2 Ba2 Kd7 Ra7 Bc6 Rab7 Ke7 Bd8+
1n2K3/n1QN2Pr/1q1bb2R/1B2R1N1/2rp1Q2/1k2p2n/3B1R1N/r1r1BN1N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 a5 Kc4 e5 Kd5 h5 b4 d3 g4 h4 f4 h3 c4 h2 f6 d6 c5 a4 c6 a3 g6+ Ke8 f7+ Ke7 g7 a2 f5 e4 g5 d2 g6 e3 b6 Bd7 c7 Rh7 c8Q Ba4 b7 Qc7 b5 Nh6 b6 Qc2 Bb5 Nc6 b8B Ra7 b7 Qc3 Nh3 Kf6 g8N+ Kg7 Ke6 d5 Kd7 d4 f6+ Kh8 Qc7 Qb2 Qf1 d1R Bd2 Bc5 Qff4 Bb4 Nf2 Bd6 Ke8 Ng4 f8N Rc1 f7 Kg7 Nf6 Nge5 N6g4 Bb3 Nd7 Be6 f8N Kg8 g7 Ra4 Rf1 Qb3 Nh1 Rac4 Rf3 Na7 Rf2 Rh3 Nh7 Nec6 Ng5 Rh7 Nc3 Qb4 Nce4 Qc5 Neg3 Qb6 Rb1 a1R Rb3 Rab1 Nf1 Ra1 Nhg3 h1N Ngh2 Rh3 Ra3 Rh5 Ra6 Rh7 Rg2 Nf2 Nh1 Nh3 Rf2 R1c3 Ra5 Rc2 Ba4 R2c3 Re5 Rcc1 Bb5 Bb4 Qc8 Bd6 Bc7 Nb8 Be1 Qc5 Bca5 Qb6 Bad2 Bg4 Re4 Na6 b8R Rh8 Nh7 Rc7 Re2 Bf5 Kd8 Kf7+ Re8 R7c6+ Qc7 R6c3 Rf8+ Ke6 Re8+ Kd5 Ng5 Rh6 Re6 Rh7 Rh6 Bg4 Rf2 Rc5 Ke8 Rc6 Rc8 Nb8 Qd8 R6c3 Rc4 Be6 Qc7 R3c2 Ba6 Rc3 Rb4 Rc5 Rb5 Kc4 Ra5+ Kb3 Be2 R5c4 Re5 Rb4 Bb5 Rbc4
kbNKQ3/2n1b1p1/B2bb3/1NNPpB1R/B3Rn2/8/BBq2r2/4rQQn w - - 0 1 illegal: No proof kernel
Q1Q4B/R2Kp2N/n1N1q3/1P2rnN1/knrB1QbR/6p1/3Q1n1b/r3Q2B w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b6 Kd7 Ke2 c5 Kd3 a5 Ke4 g5 Ke5 a4 f4 a3 d4 c4 b4 c3 h4 a2 d6 Kc6 b5+ Kd7 f6 c2 b7 g3 h5 g4 h6 g2 h7 g3 f7 Ra5 d5 Qe8 f5 Na6 b8N+ Kd8 d7 Kc7 Ke6 Kb6 d6 Ra4 f6 Ka5 Bb2 c1R Rh4 Rg4 Qe1+ Nb4 Nh3 g1N Nc3 Nc2 Bg2 Nh6 Bh1 Bg7 f8Q Rc4 f7 Bd4 Qg8 Rb1 f8Q Qg6+ Qf6 Kb4 Ne4+ Kb3 Nc6 Bf2 Nf4 Nh3 Nd5 Bc5 Qd8 Bg1 Qc7 Rd8 Ng5 Nf2 Be5 Qe4 h8B Bh2 Qf4 Rf8 Qfd2 Rf5 Nf6 Rc1 Nb4 Qc6 Nfh7 Rb1 Bd4 Rd1 Rc1 a1N Rb1+ Ka3 Rb2 Qb6 Ra2+ Kb3 Ra7 Qa6 Bhe5 Ka4 Bg7 Nb3 Bh8 Bb7 d8Q Ra1 Qdb8 Bf3 Qa8 Rd5 Qcc8 Nf5 Qc7 Bg4 Qcb8 Na5 Qc8 Nc6 d7 Rdc5 Qcb8 Rd5 d8Q Rdc5 Qbf4 Re5+ Kd7 Nb8+ Ke8 Nh6 Qc8 Nf5 Nc6 Nb4 Na5 Qh6 Nc6+ N8a6 Kd7 Qe6+
q1r1K3/1NBp1Q1R/1B1Q3R/pBn5/2Q1b1N1/1r3nP1/1br2Q1Q/kN1r3b w - - 0 1 illegal: No possible last move, all moves rejected
2R3QN/1PQ1rrRb/n1q2nBK/1Q4B1/2Q2B1b/Npb3b1/2nNpQ2/2k5 w - - 0 1 illegal: No proof kernel
3n2bQ/Rp1B3r/rQ1q1r1N/B1n4N/RR6/B2p1Kb1/1P5k/Q1b1BBr1 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 cxd4 g4 h5 gxh5 Qc7 Na3 Qb6 Nb1 Qd8 Na3 a6 Nb5 Qb6 Na7 Qc7 Bxa6 Qb6 Bf1 Qd8 Ke2 Kf7 h4 Kf6 c4 Ke5 f4+ Ke4 a4 g5 a5 e5 f6 d5 c5 g4 a6 g3 c6 g2 h6 Be6 f5 Rh7 h5 Qd7 c7 Qg7 c8B Qc7 f7 Bb4 f8B Be7 f6 Nc6 f7 Qd6 Bd2 Bg5 Ba5 Kf4 Bd7 Kg3 Rh4 e4 Nc8 e3 a7 Qa3 Ne7 Qc5 Ra4 Qa3 Qa1 Qb4 Nh3 g1R Nf4 Nf6 Ng8 Ne4 Bd6 Nd8 f8Q Qb6 Ba3 Nc5 Qf6 Qd6 Rg4+ Kh2 Kf3 d3 Be1 Rb8 a8R e2 R8a7 d4 Ba5 e1B Qg6 Rg7 h7 d2 h8Q d1R h6 d3 h7 Bg3 Nh5 Ra8 Nh6 Bc1 Rgb4 Bg8 Qe6 Qd4 Qa6 Qd6 Qb6 Re7 Qg7 Rde1 h8B R1e6 Qf8 Rg6 Bc3 Rh7 Be1 Rf6+ Kg4 Rc8 Qg7 Rc6 Qh8 Rg6+ Kf3 Re6 Qb5 Ra6 Qb6 Rf6+
1k1r1N2/p1n1N1nB/R1BPr2b/Q7/RBp1Bn1q/K2n3r/6Q1/1BQb2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 f5 Kd2 h5 Kc2 c5 Kb3 Kc7 g4 f3 d6+ Kb7 e5 h4 g6 f4 g5 h3 g7 f2 b6 h2 e6 c4+ Ka3 f3 b4 Qe7 d5 Nc6 d7 Kb8 d8Q Rh3 g6 Rh6 d6 Rh8 b5 Rh6 Bd2 Nb4 Qc1 Rh3 Nc3 Rh5 Bg2 f1N Nd5 f2 Be4 Qe8 e7 Nd3 Bb4 Qf7 e8B Rh3 Ne7 Rg3 B8c6 Nf6 g8B Qh7 g7 Qh4 Bgh7 Nh5 g8B Nhf4 Bhf5 Bg7 Bgh7 Rh3 Qg8 Bh6 Qg2 Ng3 Bfg6 Nb2 Bb1 f1N Bge4 Nbd3 Ka2 Qg4 Qf3 Qf5 Qa3 Ng2 Bed5 Qf8 Ne2 Nf5 Bc2 Be6 Qb2 N1e3 Rhd1 Ng7 Ng1 Bg4 Rd2 Nh5 Bb1 Ng7 Qc1 Qf4 Rc2 Qd4 Rc3 Qf6 Ra3 Ngf4 Ra6 Qh4 Qe4 Bd1 Qh1 Rf3 Qg2 Rf1 Bf3 h1R Bfd5 Re1 Bf3 Ne5 Kb2 Rh2 R1a4 Ned5 Ka3 Nc7 Bfd5 Ned3 Bf3 Re6 Bfe4 Rf6 Nf5 Kc8 b7+ Kd8 b8N Kc8 b6 Bb3 b7+ Kd8 Nd7 Rh3 Nf8 Re6 Ne7 Rc8 b8Q Bd1 Qb5 Rb8 Nd5 Kc8 Qa5 Ra8 Bd7+ Kb7 Bb5 Rae8 Bc6+ Kb8 Ne7 Rd8
4QB2/p2Pb3/kr2R1N1/rpBr1R2/bnBN2Rn/1q3b2/4Qr1K/3B1NB1 w - - 0 1 illegal: No proof kernel
RN6/rbR4n/1R3q2/4b1Q1/QNr5/NPkNBnpN/Kp1b2B1/1bq4Q w - - 0 1 illegal: No proof kernel
BBR2n2/1r3NB1/b7/1NbB1b2/1QQ1p1BK/b4q2/PRrn1p1q/3k1NR1 w - - 0 1 illegal: No proof kernel
r5NN/B4bk1/QN2R1r1/1QR1P3/Qn2rq2/4ppb1/1B1q1rn1/NB3K1N w - - 0 1 illegal: No proof kernel
N1r3k1/b1n1Kn2/1BB2Q2/4pP2/qNR5/Qp2bb1N/rR3N1R/Bb3q1N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 e5 Ke4 g5 h4 b5 a4 c5 f4 g4 d4 c4 h6 g3 d6 g2 Kd5 b3 a5 b4 a6 b2 f6 b3 h5 c3 f5 c2 a7 Nc6 h7 Qd7 h6 Nb8 Bb5 Ba6 Ra2 Qc8 d7 Qc7 d8B Bc8 Bc6 Bb4 Rh2 Bb7 Ne2 g1Q Nbc3 b1B Bb2 c1B Ne4 Qb6 N2g3 Bc3 Kd6 Qh1 d5 Kf8 f7 Nf6 Ba1 Qd4 Rab2 Qdg1 Bb6 Ng8 Nf2 Qhg2 Ngh1 Bg5 Qc1 Q2f1 Rh4 Qh2 Rc4 Nf6 Ke6 Be3 d6 Qg3 d7 Bcd2 d8N Rg8 h8N Qgh3 h7 Qh4 Ng6+ Kg7 f8R Ne8 Nf4 Nd6 N4h3 Nf7 Re8 Qg4 Ke7 Na6 Rf8 Rc8 a8N Nc7 Re8 Bc3 Rf8 Bcd4 Re8 Kh6 Rf8 Rg7 h8Q+ Rh7 Rg8 Qe4 Rg2 Qf4 Bd7 Bf3 Nc6 Qg4 Qd8 Kg7 Rh2 Qf4 Be8 Kg8 Nb4 Rg7 Qd6 Rg2 Qf6 Qe4 Bd7 Qc6 Be8 Qb5 Bc6 Qa4 Ba5 Ba7 Bb6 Rg4 Ra2 Rd4 Qa3 Rd3 Re2 Rc3 Rd2 Rc2 Re2 Ra2 Rd2 Qa6 Rb2 Qa4
nb1Q2Qq/QNn1R1N1/n1BR3p/2Qb4/7k/r2N3P/1qnBp1B1/2Qr3K w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 Ba6 fxg5 Bc8 Kf2 e5 d4 Ke7 c4 f5 g4 a5 Kg2 h6 b6 f4 c6 e3 b7 e2 g6 Kf6 c5 Kg5 c7 e1Q d5 e4 c6 e3 g7 a4 h3 e2 d6 a3 d7 a2 Nc3 Bb4 Nb5 Qf6 d8Q Nd7 b8Q Nb6 Qa7 Bf5 c8Q Ba3 c7 Bd6 Bd2 Be6 Nd4 Ne7 g8B Nc6 Qc1 Nb8 Nf5 Na6 Ng7 Kh4 g5 Qb2 Bf7 Qd1 Be8 Bd5+ Kh2 Qdb3 Bg2 Q3c3 g6+ Qf6 Rb1 a1N Bc6 Nc2 Qf5 Ne1 c8N Bc7 Nd6 Bb8 Nb7 f3+ Qe5 f2 Qed6 Nc7 Qdc5 Rf8 Ra1 Rf7 Ra3 Rd7 Re3 Na6+ Re5 Rd6 Re7 Qfc3 Ne8 Qh8 g7 Kh5 Nf3 f1N+ Kg1 Ne3 Ne5 Kh4 g8Q Rd7 Ng7 Rd6 Na5 Rd7 Nd3 Rd6 Qad7 Ra7 Kh2 Na8 Nb7 N3c2 Ne5 Ba2 Be3 N6c7 Qde6 Nd3 Rd1 Nde1 Kh1 Nb4 Qec4+ Rd4 Qa6 Rd3 Qab6 Raa3 Qa7 Nba6 Bf4 Re3 Rd6 Red3 Be3 Rd1 Nd3 Bd5 Bd2 Nc2+
rk3BR1/2qr4/1BqnP1R1/1rp3N1/1Q2BR1r/3KQ2n/R3NN1p/b2R1b2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 Ke2 c5 b4 Kc7 d4 f5 g4 h5 e5 a5 d6+ Kb7 e6 f3+ Kd3 h4 g6 a4 g7 f2 g5 f4 b6 f3 d5 h3 d7 h2 b5 a3 g6 a2 d6 Qh4 d8B Nc6 d7 Nce7 Qe2 Nf5 Bg2 f1R Qe3 Qg3 Ne2 Ra4 Nbc3 Rh7 Ne4 Nd4 Nf2 Nf6 g8R Nh5 g7 Kb8 b7 Nf5 Bb6 Qc7 d8N Nd6 Nf7 Rh4 Ng5 Bd7 Bb2 Rb1 Rd1 Be8 Bd4 Be7 Rf8 Bf6 g8R Rd7 Rg6 Bh8 Bg7 Nf4+ Kc3 Nh3 Kd3 Rb2 Rf4 Qc6 Bf8 Bc3 Nh1 f2 Be4 f1Q Nf2 Be5 Rac1 a1R Rc2 Rbb1 Rcd2 Ra6 Ra2 Ra8 Ba5 Ka7 b8R Ba1 Rc8 Kb7 b6 Rb5 Rd8 Qg2 Rc8 Qg3 Rb8+ Ka6 b7 Ka7 Rd8 Rc8 Bb6+ Kb8 Rg8 Bh5 Re8 Rcd8 Re7 Bf3 Reg7 Bg2 Rg6 Bf1 Rgf6 Ne8+ Bd5 Ra5 Rf3 Qgc7 Rfg6 Nd6 Be4 Re8 Rf4 Ra8 Ba5 Ka7 b8Q+ Ka6 Qb4 Ka7 Bg7 Reb8 Bf8 Rb5 Bb6+ Kb8
4Q1B1/1n1K3n/qk1BpRN1/5PNq/pbQ2bQQ/r2B1Rr1/bN2b3/5Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f6 Kd7 Ke2 a5 Kd3 c5 Ke4 Kc7 Ke5 h5 f4 h3 d4 c4 b4 e6 g4 c3 b6+ Kb7 b5 a4 d6 c2 d7 h4 g5 h2 f5 h3 g6 Be7 g7 Bc5 f7 Qg5 f8N Qh5 d8Q Bd7 d5 Rh6 d6 Bb4 Bf4 c1B Na3 Qg4 Nf3 Qh5 Nc4 Rh7 Nb2 Ba3 Qg5 Qh4 Qh5 Bc6 d7 Ra7 d8Q Be7 Ra3 Nf6 g8B Na6 Rg1 h1B Rg6 h2 Be2 Nd5 Qf1 Nc5 Bg3 Bd2 Rc3 Beg5 Kd6 Qc4 Re3 Rc7 Bd3 Nf6 Qe8 Nh7 Rf6 Bd5 Qeg6 Kc8 b7+ Kd8 b6 Qa6 Qg7 Ba2 b8Q+ Rc8 Qa8 Bb4 Qe4 Re7 Qgg6 Rg7 Qc6 Bg2 b7 h1Q b8Q Qh4 Be5 Bf4 Qa8 Qg5 Qh4 Qh5 Qgg3 Rg4 Ng5 Bf3 Ng6 Be2 Qgh3 Rg3 Q3g4 Qa5 Qd5 Qa6+ Qac6 Rc7 Rf3 Kc8 Qd4 Kb8 Qe4 Ka7 Qd5 Rc8 Ke7 Nb7+ Bd6 Rc7+ Qd7 Rc8 Qe8 Kb6 Kd7 Rc3 Qc4 Ra3
1q6/2BQ4/b1Pb2R1/1NNB1bnp/r1NK2k1/Rp2QR2/4b2r/qnNQ1N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 Kd3 d5 f4 h5 a4 e5 g4 b5 c4 e4+ Kd4 e3 a5 e2 f6 Ke6 f7 e1Q c6 b3 c5 b2 c7 b4 f5+ Kd7 g6 b3 f6 Ke6 a6 Bb7 c8N Qd7 a7 Bh6 f8Q Na6 c6 Qe8 g7 Nb8 g5 Kf5 f7 Ba6 g6 Qh4+ Bf4 Qh3 Bg2 Qf3 Rh3 Qf1 Qd6 Ne7 g8Q Nd7 f8N Nf6 g7 Ne4 Ne6 Ng5 Nd2 b1B Ne2 Kg4 Nc5 Bf5 Qge6 Rf8 Nb6 Qb8 g8R Rf6 Ra4 Bf8 Rf3 Qh1 Nbc4 Qe1 Ke5 d4 Ra3 d3 Nf1 d2 Rg6 Nd5 Kd4 Nc3 Qe3 Nb1 Qd7 Bd6 Nc1 Re6 Qg1 Re2 Qe3 Bf8 Bc7 Bd6 Qc2 d1B Qcd3 Rb2 Bh1 Be2 Qd1 Qb5 Bg2 Re8 a8N Qb8 Bb6 Ra2 Nc7 Rc2 Nb5 Re4+ Kd5 Rb2 Bc7 Ra2 Ncd2 Ra4 Nc4 Bd3 Bh1 Rh2 Kd4 Be2 Rf2 Bf4 Bd5 Bd6 Rf3 Qd2+ Qd3 Qa2 Qe3 Qa1+
3kq3/R2bn1KQ/b1p2RQ1/RNq1n3/1R2Nrb1/1r1PBp2/2B4b/BR5N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 a5 e4 h5 g4 h4 b4 c6 b6 a4 g6 h3 g5 h2 b5 a3 b7 a2 g7 Ra6 e5 Ra8 d6 Ne7 g8N Kd7 b6 Qe8 g6 Rh5 g7 Rh7 e6+ Kd8 d7 Rh4 Qc2 Qf7 Nc3 Qf6 Nge2 Na6 b8B Ra7 b7 Nb4 Ng3 Ra8 Nb5 Rh3 Bd3 Rh6 Be5 Rh4 b8R Qh6 Nf6 Ra4 g8Q Qh8 Nfe4 Rh3 Qh7 Bh6 Qb1 Bg7 Bc2 Nd3 Ra8 Qf8 Ra7 Qe8 Rg1 Rb4 Bd4 Rh4 Nh1 Rb3 Be3 Bf6 Bb2 Be5 Rg6 Ba6 Rf6 Bb8 Qg1 Be5 Rd1 a1Q Qgg6 Qa3 Ba1 Qc5 Rb1 Bd6 Ke2 Ne5 d3 f3+ Kf2 Ra3 Kg3 f2 Rb4 f1B Rb1 Rh5 Kf4 Rh4+ Kg5 Rf4 Kh6 Bh3 Kg7 Rc3 Nhf2 h1B Rb4 Bf3 Nh1 Bfg4 Rb1 Nc8 Rb4 Ke7 d8R+ Bc7 Rdd4 Rb3 Rdc4 Kd8 Rc3 Ra3 Rcb3 Ne7 Rb1 Rb3 Ng5 Rd4 Ne4 f4 Nhg3 f3 Nh1 Nd5 e7+ Kc8 Nd2 Rf4 Ne4 Bd7 Bc3 Bhg4 Ba1 Qd8 e8R Ne7 Ref8 Qe8 Rf5 Kd8 R8f6 Nf7 Rd5 Ne5 Nd4 Qc4 Ra5 Qc5 Nb5 Rf5 Rd4 Nf7 Rb2 Bh2 Rb1 Rf4 Rb4 Ne5
1RR1Nqb1/5k1p/1pr2r1n/Nn3nQ1/BQ1bR3/2N1R1QP/7R/Kq2B2n w - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 d4 g5 f4 e5 dxe5 Ke7 fxg5 Ke8 b6 cxb6 Kd2 a5 Kc3 f5 Kb2 d5 e4 d4 g4 a4 c4 d3 c5 f4 e6 f3 g6 d2 g5 f2 g7 Be7 e5 Nd7 b8R Nh6 g8Q+ Bf8 g6 Nf7 g7 Nh6 h3 Qe7 c6 Qh4 e7 Qg3 c7 Nc5 Qe1 Nb7 Rh2 Qf4 Nc3 Nd6 Nf3 Ndf5 Ra3 d1N+ Ka1 Ra5 Qd5 Rc5 g8Q Rc6 Bb5 f1N Nd2 N1g3 Nc4 Nh1 Qgg3 Bg7 Na5 Rf8 Bd2 Rf6 Qee4 Bh8 Qb4 Qf3 Qdc5 Kf7 e8R Be6 c8R Bc4 Rb3 a3 Be1 a2 Ba4 Qf2 Qce3 Bg7 Qeg5 Qf1 Ne4 Nc3 Ra3 Nb5 Re3 Qf2 Nc3 Bb3 Re4 Qc5 Re3 Qf8 e6+ Kg8 e7 Kf7 Red8 Bh8 e8N Bc4 Rd4 Bd5 Kb2 a1Q+ Kc2 Bc4 Rde4 Qb1+ Kd2 Rfd6+ Rd3 Bd4 Rf3 Rf6 Rfe3 Qd3+ Kc1 Be6 Qb3 Ke7 Kb2 Qc2+ Ka1 Qd3 Rh4 Qe4 Qb1 Bg8 Qb4+ Kf7 Rf4 Qc2 Rfe4 Qb1+
r1QB1nN1/1Bqb1p1n/nN1R4/5P2/1Q2pnkq/4Q3/N2Q1b2/BRK1r2Q w - - 0 1 illegal: No possible last move
7B/1B2qpb1/2rp4/1PBknNn1/q1b1R1RK/NB3qq1/2Q1Q1r1/1N2Q1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 c4 a5 b4 g5 e4 d6 h4 a4 h6 d3 h7 a3 c5 d2 b6 g4 b5 a2 b7 Nc6 b8B Qc7 h5 Nh6 Ba7 Qb8 Qe1 d1Q Nf3 Na5 c6 Qa4 c7 Nb7 Bc5 Rg8 h8Q Ra7 Rh4 Ra6 Nfd2 Na5 Nc4 Bd7 c8B Nb7 B1e3 Qd1 Qh7 Qd5 Nca3 Nd8 Bb7 Bc8 Bc4 Bg7 Bb3 Rc6 Bg1 Qc7 Qe2 Qe7 Qe1 Kd7 Qg6 Ne6 Qh7 Ng5 e6+ Kc7 e5 Qh1 Qc2 Qf3+ Kh2 Qf4+ Kg2 g3 Rg4 Qc1 Re4 Ng4 h6 Qf4 h7 Bd7 h8B Bc8 Nc3 Bd7 Rc1 a1Q Ncb1 Qd4 Rd1 Qa4 Rdd4 Bc8 Bb4 Kb6 Qee2 Qf8 e7 Be6 e8Q Bc4 e6 Qe7 Qe1 Ne5 Qee2 Nh7 Kh3 Qf3 Rg4 Ng5+ Kh4 g2 Rde4+ Qe3 Bd2 Kc5 Bb4+ Kd5 Bc5 Qf3 Qe1 Qef6 e7 Q6f4 Bh2 g1Q Qee2 Qgc1 Bhg1 Qcf1 Qd8 Q3e3 Qa5 Bf8 e8N Nh3 Qb4 Nd3 Re7 Q1f3 Ng7 Qe6 Nf5 Rg5 Bb6 Bg7 Qbe1 Qd7 Re4 Qe7 Bbc5 Ne5 Nh6 Q4e3 Rgf4 Rg2+ Rf6 Ng5 Rff4 Qd2 Rg4 Qdf4 Nf5 Q4g3+
1N4R1/Qbrqp3/n2Np1R1/1B1r1nNn/1Pnq4/5NQ1/2NBR2b/4QK1k w - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 Nh6 axb5 Ng8 e4 h5 g4 Qd7 gxh5 Qd6 e5 Qd8 e6 fxe6 f4 Kf7 h4 Kf6 d4 Kf5 b4 Ke4 b6 a5 f5 g5 b7 c5 f6 c4 h6 c3 h7 a4 f7 a3 d6 g4 h5 g3 d5 c2 h6 g2 d7 a2 d6 Ra7 Rh2 Qb6 d8R Ra5 d7 Re5 Bb5 Rd5 Nf3 g1N Bd2 c1Q Na3 Nh3 Kf1 Bg7 f8N Na6 b8N Qd4 Nc2 Nf4 Rb1 a1N Qe1+ Ne2 Re8 Bb7 d8N Be5 Nf7 Nf6 Rg2 Bd6 Rg6 Qd1 Rb2 Nh5 Ra2 Rg8 h8Q Nb3 h7 Bh2 Qg7 Na5 h8Q Nc4 Nh7 Rf8 Rc8 Rfd8 Rb2 R8d7 Rg8 Rc7 Ra2 Qe3 Qa1 Nd4 Qg7 Nf5 Nhg5+ Kf4 Nd6 Kg4 Nge4+ Kh3 Qad4 Qc3 Qa7 Qd4 Nh4 Be5 Ng5+ Kh2 Nhf3+ Kh1 Rb2 Bg3 Qe5 Bh2 Qg3 Qh4 Rb3 Qd4 Re3 Qb6 Re4 Qc6 Re2 Qd7 Nh7 Qa1 Nhg5 Qd4
QN1rrB1B/1B1PpBQ1/3BRr1Q/6p1/2K5/3nr3/1n1k2NN/bq1q1b1R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 f4 g5 a4 c5 h4 b5 h6 b3 h5 b4 h7 b2 a5 b3 a6 Qa5 h6 Qa2 d6 Bg7 d7 Bb7 d8N Bg2 a7 Bd5 Nc6 Bf8 Nc3 b1R Nce2 b2 Nf3 Qa4 Nh2 Qa2 Qa4 Nd7 Nb8 c4+ Kc3 Ne5 d4 Be4 d5 Bd3 d6 Bg7 d7 Qb3+ Kd4 Kf7 f6 Ke6 f7 Kf5 f8B c3 Bg2 c2 Bd5 Bb5 Bf7 Nf6 Be3 Rg8 h8Q c1R h7 Rc3 Qa5 Rf1 Re1 b1Q Qa2 Bh6 Qg7 Nd3 h8B Ne4 Bc1 Rf2 Ba3 Q3d1 Bd6 Nec5 Qa6 Rb3 Qb7 Na4 Kd5 Bc6+ Kc4 Ke4 f5 Ke3 f6 Kd2 Nf4 Bg2 Re6 Bf1 Ng2 Rf3 Nc6 Rd8 a8B Rb6 Nb8 Re3 Qa7 Re8 Bb7 Ra6 Qa8 Rd8 Qg6 Bg7 Qh6 Rb6 Bh5 Ra6 f7 Bf6 Bfg7 Be5 f8Q Ba1 Qff6 Rge8 Bf7 Ra5 Qd4 Rf5 Bf8 Rf2 Qdg7 Rf5 Qgh7 Rf6 Q7g7 Nab2+
1q6/BQ1b1Q2/Nn1Rrn1R/4r2Q/3KnB1R/r1qp3p/2k1N2P/1R1q2RB w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 e6 g4 Na6 f4 Be7 g5 Bf6 gxf6 Nb8 Ke2 Kf7 Kd3 d5 b4 h5 c4 a5 c5 g5 b6 g4 b5 h4 c6 a4 c7 g3 b7 g2 b6 h3 Ne2 g1N Nd2 e5 Nb3 a3 Rb1 a2 Bg2 a1R Nc5 R1a5 Na6 Nf3 Rg1 Ng5 Bh1 Bd7 c8R Qe8 Rc6 Ne4 Rd6 Rh6 Bd2 Bc8 Be3 Nd7 b8B Rg6 b7 Nb6 Bd2 Bd7 Ba7 Qd8 b8Q Ra3+ Kc2 d3+ Kb2 d4 Qb7 Qb8 Bc1 Kf8 f7 Kg7 f8R d2 Rff6 d3 Rfe6 Rg5 f6+ Kg6 f7+ Kf5 f8Q+ Ngf6 Qf7 Rg6 Qb3 d1Q Q3d5 Ra5 Ng3+ Kg4 f5 Ra3 Bf4 Rh6 Rg2 Kf3 Rg1+ Kf2 Ne2 Ra5 Bg3+ Ke3 Qh5 Kd2 Qa2 Ng8 f6 Rc5 f7 Ngf6 f8R Rg6 Qad5 Rb5+ Ka2 Kc2 Rh8 Ng4 Rg8 Kd2 Nc5 Bc8 Bf4+ Kc2 Nc3 Ng3 Ka3 Ra5+ Kb4 e4 Qf7 Bd7 Qb7 e3 Rf6 e2 Rg7 Qg8 Bb8 R8a6 Ba7 e1Q Rfe6 Qe5 Ne2 Ne4 Rf6 Qb8 Rg8 Rg7 Rh6 Rg6 Rg7 Re6 Rg5 Nd5+ Kc4 Ngf6 R5g4 Rb5 Rh4 Ra3 Na6 Qb2 Nc3 Nb6+ Kd4 Qb3 Ne2 Rba5 Rf1 Rae5 Rg1 Qc3+
N1NQ4/1R2r1kN/RQpKpRq1/4n3/1RRnP3/3nB1bn/2r5/nBB3r1 w - - 0 1 legal: proof: a4 d5 c4 f5 g4 b5 axb5 fxg4 cxd5 g5 h3 g3 Qc2 g2 Qd1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qc8 Rh6 Qd7 Rh1 Qd8 d4 Kf7 Kd2 a5 Kc3 h5 Kc4 e6 b4 c6 f4 h4 e4 h3 f5 a4 d6 a3 Kc5 h2 d5 a2 b6 Qf6 b5 Qd8 f6 Be7 g5 Ra3 g6+ Kf8 b7 Rb3 f7 Kg7 f8R Bg5 d7 Qc8 d8B Bh4 d6 Bg5 d7 Bh4 b6 Re3 Na3 Qc7 Nb5 Rh5+ Bg5 Qd8 Nc7 Na6+ Kd6 Qf6 b8R Rf3 d8Q Kh8 b7 Nc5 Na8 Rc3 Nf3 g1R Qb3 g2 Qbb6 Nd3 Bge3 Ne5 Bd3 Bg3 Ng5 Kg7 Bb1 Ne7 Nh7 Qf5 Rf6 Rc2 Rc8 Qg4 b8R Rf5 Rb7 Rff2 Kc7 Nf5 Rcb8 Nd4 Kd6+ Nf7+ Kd7 Ne5+ Ke7 Re1 Rf1 h1N Rg1 Rf4 Rf1 g1N Kd6+ Nd7 Rf2 Nh3 Rd2 Rd1 Rd3 Rdf1 Rc3 Rg1 Rc5 N1f2 Rc4 Kh6 g7+ Qg6 g8N+ Kg7 Ne7 Ne5 Rf8 Rf7 Nc8 Rc7 Rf6 Nfd3 Ra7 Re7 Rbb7 Rc3 Ra6 Bh4 Bc2 Bf2 Rb1 a1N Rbb4 Bg3 Bb1 Rc2
2nQ3B/1nN1p2k/2N5/KN2QR2/1N1RR1qp/2bB1N1P/2q2qq1/1rrB2q1 w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 gxf4 d6 b5 e4 b4 d4 b3 e5 Bh6 e6 Bd7 exd7+ Kf8 d5 Kg7 axb3 Kg6 b4 Bf8 b5 Kf6 Kd2 Kg6 Kc3 h5 Kb4 f5 g4 f3 h3 a6 g5 h4 b6 c5+ Ka5 f2 b4 c4 b5 c3 Qe2 c2 Bb2 c1Q Nf3 f4 Nc3 Nf6 Ra4 Kg7 g6 Qe8 d8N Nbd7 b7 Nb6 b8N Nc8 d7 Ne4 d6 Nc5 b6 Qc2 Nbc6 Rb8 b7 Qf7 Qe3 Qe6 Re4 Qg4 Bd3 f1Q Nb4 Qff2 Nb5+ Kg8 g7 Kh7 Ndc6 Rg8 Ne1 f3 d8R Qfg2 d7 f2 Bd4 f1Q Nf3 Qff2 Rf1 Nd6 Kb6 a5 Bb2 a4 Ka5 Rc8 b8N a3 N8a6 a2 Nac7 Rb8 Qf4 Nc8 Qe5 a1Q+ Ba3 Qad4 Bb2 Rh8 Bc3 Qfg1 Ba1 Qdf2 g8B+ Kg6 Bb3 Kh7 Bc3 Bh6 Bd4 Bd2 Ba1 Bc3 Ba4 Qce2 Bd1 Qc2 Nfd4 Rf8 Qf5+ Qg6 Na3 Qff3 B1e2 Bb2 Nba6 Rb4 Nab5 Rb3 Nab4 Qfg3 Qd5 Rf2 Bg4 Re2 Rf5 Re1 Qe6 Rc1 Bd1 Qh5 Nf3 Q3f2 Qd6 Qhg4 Qf4 Ba3 Bh8 Bb2 Qe5 Bc3 Rg8 Qg2f1 Rg6 Qg1g2 d8Q Q1g1 Rd6 Rbb1 Rdd4 Nb7+
1R1q2k1/1R1p1pN1/b2Nq3/rQ1P1BQQ/1q1br1K1/3r2Q1/2QR3B/3r1B1n w - - 0 1 legal: proof: h4 e5 a4 b5 b4 g5 hxg5 Be7 axb5 Ba6 b6 Bc8 b7 Kf8 c4 Nh6 f4 Ke8 b5 exf4 Rh3 Bf8 b6 Nc6 Rh4 Nd4 Rh1 Nb5 cxb5 Ng8 Kf2 h5 Kf3 c5 b8R a5 d4 a4 e4 h4 g4 c4 b7 c3 e5 a3 g6 a2 e6 c2 d5 h3 g7 h2 g5 Rh6 b6 Bb4 g6 Qc7 Nd2 Rh3+ Kg4 f3 Nc4 f2 Nf3 Rh7 Ng5 Bc5 Bf4 c1Q Nd6+ Ke7 Rb1 a1R Qc2 Kf6 e7 R8a4 e8Q Re4 Ne6 Ne7 g8B Qb2 g7 Rh3 Bh7 Qb4 g8Q Ra5 Bf5 Bd4 Ng7 Rd3 Qh7 Qd8 Qh5 Ng8 Rg1 h1Q Rg2 Ne7 Qg8 Qg1 Be2 Qge1 Bf1 Re5 Bh2 Re2 Bh7 Nf5 Rb2 Ng3 Bf5 Re4+ Kh3 Ke7 Ra8 Rf3 Ne6 Qb3 Qgg5+ Bf6 Be2 f1R Ng7 Re6 b8Q Kf8 Qb7 Nh1+ Kg4 Rg1 Bb5 Rgf1 Rd2 Kg8 Qbc6 Re8 b7 Bd4 Q6c3 Re5 b8Q Ba6 Qb6 Qe3 Rb8 Rd1 Bf1 Qc4 Rb5 Qb4 Qbc6 Qe1 R5b7 Rh3 Qf3 Re2 Qff4 Rd3 Qb5 Re5 Qg3 Qe3 Qe7 Qh6 Qeh4 Qe6 Q4g5 Re4+
1n2N3/1R1N1RQ1/4p1r1/2nRrB2/qb3QBk/BBrqP3/1p3K2/2qBN1r1 w - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 g6 Ra8 g5 Ke8 h3 Bg4 hxg4 Ra7 Qb3 Ra4 Qd1 Ra8 a4 f5 d4 b5 g7 Kf7 e3 Kg6 d6 c5 a5 h5 a6 c4 d7 c3 d5 f4 a7 f3 d6 b3 Ba3 h4 Qd4 c2 Qf4 c1R+ Kf2 b2 Nc3 b1R Na4 h3 Be2 h2 Nc5 b4 Bd1 Rb3 Rb1 Qc8 d8Q Qb7 d7 Qb5 Qdc7 Qb7 d8R Qb6 Rd5 Qa5 Nd7 Nh6 g8N Nf7 Ngf6 Rh5 Ne8 Rbc3 Qce5 b3 Qed4 Nc6 Rb2 Rb8 a8B Nd6 Bb7 Qa4 Bc8 Nb7 Qa7 Nc5 Rb1 Kh7 g6+ Kh8 g7+ Kh7 g8B+ Kg6 g5 b2 Be6 Rb6 Bg4 Nb8 Qb7 Re6 Qbc7 Rh6 Bf5+ Kh5 g6 Re5 g7 Rhe6 g8B Rg6 Bg4+ Kh4 Ra1 Rh5 Qce5 Rb1 Qg7 Re5 B8e6 Rbc1 Bef5 Rb1 Ba6 e6 Bc4 Be7 Bcb3 Rbc1 Ne2 Bf8 Rf1 h1Q Nd4 Rb1 Nc2 Bd6 Ke1 f2+ Ke2 Qhe4 Ne1 Qd3+ Kf3 Qa7 Bb4 Qa8 Ra7 Be7 Rb7 Qa4 Ba3 Rbc1 Rg1 Bf8 Rg2 f1Q+ Rf2 Ra1 Nc2 Qe1 Rf1 Qed2 Ne1 Qc1 Kf2 Nca6 Ndf6 Bb4 Nd7 Nc5 Nc2 Qda6 Bde2 Ba5 Be4 Q6b5 Kg1 Bc7 Qf5 Qd2 B4d3 Re1 Bd1 Ba5 Qf3 Re2 Ne1 Bb4 Qe4 Qc1 Rf7 Qc4 Qf4 Rg2+ Kf1 Qd4 Bdf5 Rg1+ Kf2 Qd3
6q1/n1bpp1k1/R1Q2q2/1q2N3/QBBqR1nQ/4PR2/Q1bn1NKQ/6rB w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 g5 g4 c5 f4 cxd4 fxg5 Bb7 h4 Qb6 h5 Bh6 g6 Qd8 g5 Bf8 g7 Bc8 Bf4 Ra6 Bc1 Rg6 hxg6 Ba6 Kf2 Bb7 Ke1 Bc8 Kf2 f5 c4 h5 b4 h4 e3 h3 b6 f4 b5 a4 b7 f3 b6 a3 c5 h2 c6 d3 c7 a2 Nc3 d2 Ne4 Na6 b8Q Nh6 g8B Bb7 c8Q Ba8 b7 Nc5 g7 Ne6 g6 Nc7 Bd5 Rh7 g8R Nb5 g7 Na7 Qa4 d1Q Qcc6 Qd4 Ba3 Ng4+ Kg3 f2 Nf3 Rh4 Bfc4 f1N+ Kg2 Nd2 Qf4 Qb8 Raf1 a1Q Ne5 Qab2 Qfh6 Qb5 Nf2 Rh5 Qh7 Rg5 Qh4 Qd6 Rh8 Qf6 g8Q Rg6 Qge6 Rg5 Rh6 Bg7 Rhg1 Kf8 Bb4 Bh8 b8Q+ Kg7 Nh1 Rg6 Rf3 Rg5 Nf2 h1Q+ Kg3 Rg6 Rd1 Qe1 Kg2 Qe2 Qbc7 Qb8 Rh1 Qg8 Rhh3 Qed3 Rf4 Qdf5 Re4 Bb7 Rf3 Ba6 Ba2 Bd3 Bac4 Bb1 Qca6 Qh5 Qec6 Bc2 Qa2 Qhf5 Qa6a4 Rg5 Nf7 Rg6 Qcg3 Q5e5 Qgh2 Qeb8 Ne5 Qb5 Qb7 Rg5 Qc6 Qc3 Kh3 Qf4 Qb7 Rg6 Rd4 Qg5 Rg3 Nf6 Nc6 Kf8 Bh1 Bg7 Re4 Qd4 Qba6 Qf4 Rf3 Rg1 Qb6 Ng4 Rg6 Be5 Qc7 Bd6 Ne5 Qff7 Qb7 Bb8 Ra6 Bc7 Qa8+ Kg7 Qc6 Rb1 Kg3 Qf6 Kg2 Rg1+
r2qn1R1/1p1NR3/6B1/3BqQ2/1B1K3Q/nP1Q1bBq/p1Nn3q/1k2rRB1 w - - 0 1 illegal: No proof kernel
3RrQ1N/2Q1K3/3B4/2br3k/2bp1nq1/2P1N2r/p2NBp1R/2BNRbNn w - - 0 1 illegal: No possible last move
1NQB1R2/2Q1R3/1r6/N3qBrB/n2pRBb1/1rpn1K1N/4pBPb/2b4k w - - 0 1 illegal: No possible last move
N4r1Q/N2N2Q1/1NbR4/pN1B1BRp/1k2r2P/3K2n1/q1B2bp1/1nn1b1Q1 w - - 0 1 illegal: No proof kernel
R1b2r2/5r1Q/1BNR2pR/1N3n2/1R1n1N1Q/2pB1pPR/2n1qkb1/K1B2b2 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf6 h6 Bg7 hxg7 Kd7 Nf3 Ke7 Ng1 Ke8 b4 Kd7 e4 Kd6 d4 c5 Kd2 h5 Kc3 f5 Kb2 a5 b6 a4 g3 h4 b5 h3 e5+ Kd7 b7 f3 d6 Ke6 d5+ Kd7 b6 c4 e6+ Ke8 e7 Kf7 e8R Kf6 d7 f2 d6 h2 Qg4 f4 Nh3 f3 Qh4+ Kf5 Na3 Qg5 d8B Nh6 g8Q Nc6 b8N Qe7 b7 Ra7 d7 Nd4 Qh7 Rf8 Nf4 Ke4 Nb5 Nhf5 Nc6 c3+ Ka2 a3 b8R Rb7 Bb6 Qe6+ Bc4 f1B d8R Rbf7 Rd6 Qe7 Rb1 Qe5 Rb4 Qe6 Bb2 Ke3 Ra8 Kf2 Ka1 Qe1+ Bc1 Qe2 Rg1 h1B Bd3 Bhg2 Rh1 Qc2 Re5 Qe2 Rh3 Ne3 Rh5 Nef5 Bb2 Ke1 Kb1 Kf2 Rh6 a2+ Kc1 a1N Kb1 Kg1 Bc1 Nc2 Ka2 Kf2 Kb1 Nce3 Ka1 Nec2+
RQ6/Bb2k1Nn/5pr1/1q1Q4/K6R/3R1BBr/bp1Pnp1b/Q3rBNB w - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 a5 b4 e5 bxa5 exf4 c4 Be6 cxd5 Bc8 a4 c5 g4 h5 e4 b5 d6 f6 a6 h4 g6 h3 a5 h2 g5 b4 d7+ Ke7 a7 c4 e5 f3 g7 c3 a6 b3 e6 c2 g6 Nh6 g8B Bb7 g7 Bc6 Ra3 Qc8 d8B+ Ke8 e7 Ba4 Bb6 Qc4 Nc3 Qb4 Nce2 Qd6 Bd5 Qc5 g8Q Qb5 Nf4 Nd7 Ne6 Ng4 Bb2 c1R Be5 b2 Rd3 Rh3 Bg3 f2+ Ke2 Ra1 Bf3 Nh6 Bd4 Rc8 a8B Bb3 a7 Ba2 Qg5 Rc3 Qd5 Nf5 Bc6 Rb3 a8R+ Kf7 Ba7 Nd4+ Ke3 Ne2 Ke4 Bh6 Qe1 Nf8 e8Q+ Kg8 Bb7 Bf4 Qb8 Kf7 Ng7+ Ke7 Qd1 Nh7 Qc1 Nc3+ Kd4 Rh6 Qd1 Rg6 Bc6 Ra3 Qa4 Re1 Qa5 Qb7 Kc5 Ne2 Qa4 Qd7 Kb4 Qf5 Qd1 Qg5 Qa1 Bc7 Nh3 Rb3+ Ka4 Be5 Rg1 h1B Bb7 Bg2 Rh1 Rc3 Ng1 Qf5 Bh4 Bh2 Bg3 Qd7+ Bc6 Qb7 Rd4 Re3 Rd3 Qb5+ Ka3 Qc4 Be4 Bb3 Qd4 Qd5 Be5 Bf4 Rh4 Ba2 Ka4 Rh3 Bc7 Bh2 Bg3 Bf3 Bb7 Bg4 Bh1 Bc8 Bc6 Qc5 Bcf3 Bb7 Qd5 Qb5+
b2QbN1b/q5B1/k1pB1Brp/n5P1/K1Rn1N1Q/4Bp1r/N3BQn1/1R6 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 g4 f5 b4 a5 d4 f3 Kd2 c6 Kc2 Kc7 Kb3 Kb6 g6 h6 g5 f2 d6 f4 e5 f3 e6 Qe8 g7 Nd7 e7 Rb8 d5 Bb7 Ne2 Ba6 Qd2 Ka7 b6+ Kb7 b5 Rh7 Ra4 Qc8 e8N Be7 Nf4 Bf6 Nc7 Nf8 d7 Ne7 d8Q Ne6 g8Q Rg7 d6 Nf5 d7 Nh4 Nc3 Rg6 Be2 f1B Rc4 Bh3 Na2 Bh8 Ka4 Nd4 Nce6 Ng2 Nf8 Qc7 Qd5 Bg4 Qe4 Bh5 Qb2 Ra8 Be3 Qb8 Rb1 Qa7 Qf5 Rb8 Qg4 Ra8 Qh4 Rb8 Ka3 a4 Kb4 a3 Ka4 Rf6 Qd2 Be8 Qde1 Re6 Qef2 Ra8 Qf6 Re4 d8B Rc8 Qd6 Rc7 Bf6 Rg7 Qd8 Rg6 Nc1 a2 Bg7 a1N Na2 Qb8 Bf6 Nab3 Bg7 Ka8 b7+ Ka7 Bf6 Qc7 b8B+ Kb7 b6 Na5 Bg7 Qe7 Bbe5 Qc7 Ka3 Qb8 Ka4 Qa7 Nh3 Rg4 Nf4 Rg3 Bef6 Rh3 Rcb4 Bd3 Rc4 Ka6 b7 Bf5 b8B Bc8 Bc7 Bb7 Bd6 Ba8
3b3n/5Nrb/pBn2k2/1N2p1RQ/3pq2Q/RR3B1P/N1b1N2r/N1KQ1r2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 d5 b4 g5 c4 e5 b6 a6 f6 d3 c5 g4 b5 g3 h6 g2 h3 Nd7 b7 Nb8 f5 Qa5+ Nc3 Bd6 b6 Nd7 b8N Bf8 c6 Bc5 h7 Ra7 b7 Be7 c7 Bd8 Be2 Qc5 Na2 Ne7 Nc6 Nf8 b8R Nd7 Na5 Qc4 Nb3 Qe4 Bf3 Rb7 Ne2 Nb6 Rg1 Re8 h8N+ Kf8 f7 Be6 c8N Kg7 Na7 Rf8 Nb5 Nd7 Bb2 Rc7 Bd4 Ng6 Bb6 d4 Rb7 Bc4 Kc1 Kf6 Rb8 Rg8 f8Q+ Bf7+ Qc5 Rg7 Qc6+ Be6 Nf7 Nh8 Qc3 Bc4 Qce1 Rc6 Rb7 Nb8 Qg3 Rc7 Qg4 Nc6 Qh5 Ke7 f6+ Ke6 Rh1 g1R Qh4 Rf1 Rg1 Rc8 Rg5 Rb8 Nh6 Bd5 f7 Kf6 f8Q+ Bf7 Qa3 Bg8 Nf7 Bh7 Qh5 Rc8 Qb4 Rc7 Qbe1 Rc8 Qeh4 Rc7 Nac3 Rc8 Ra3 d2+ Kb2 Rc7 Na2 Rc8 Na1 Rc7 Qde1 d1B Kc1 Bc2 Qd1 Na5 Ra7 Rc3 Rd7 Nc6 Rd5 Rc4 Rc5 Rb4 Rcc3 Rb2 Rcb3 Bb1 Ng3 Rh2 Ne2 Bc2
r1brnQ2/r1n1BPBk/R1N1QR2/2bBqp2/2R1Q2p/pN3Q1n/4K2Q/8 w - - 0 1 illegal: No proof kernel
KNB1BR2/2b2pnN/2n2bpQ/2p1P2q/b1RB2n1/RR1rR3/4QQ2/1r5k w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Ke3 c5 Ke4 a5 b4 g3 d4 g6 h4 a4 h5 g2 b6 a3 h6 a2 h7 Bd6 e6+ Ke7 b5 Kf6 e7 Be6 e8B Ra3 b7 Bh2 b6 Rd3 d6 Be5 d5 Qd7 Nd2 Kg5 Nh3+ Kg4 Nb3 Kg3 Bb2 g1B Bd4 Be3 Na5 Nc6 b8Q B3f4 b7 Nd8 Nc6 Qc7 d7 Bd2 d6 Bg4 Kd5 Bh5 e4 Bef4 e5 Be1 Ng5 Rd2 Ba6 Kg2 Rh4 Ne6 d8R Ng7 d7 Nh6 Qe2+ Bf2 Qa8 Ng4 b8R Rd3 Rb3 Qb8 Bc8 Bd2 Re1 a1N Qa2 Qb5 Nb8 Ba5 Kd6 Qb4 Kc6 Bc7 Qab2 Qc3 Kb7 Nc2 Ka8 Nb4 Ra1 Qc2 Raa3 Qd1 Qa2 Rg8 h8Q Nc6 Qh6 Qh1 Rh3 Qh2 Qad2 Kh1 Re3 Bh4 Nh7 Bf6 Qc2 Nf2 Qb2 Bf3 Qbc2 Ng4 Qf2 Bg2 Qce2 Qh5 Bb7 Bb6 Na6 Nb4 Rb8 Ba7 Rc3 Bc6 d8R Bg2 Bec6 Bb6 Rc4 Bc7 Bb5 Re8 Ba4 Re6 Rf8 Rb6 Bac6 Rb5 Bc8 Rb7 B6d7 Bc6 Be8 Rb6+ Rb7 Ba4 Nb8 Rb5 Rb6 Nc6 Rb7 Rb2 Rbb3 Rb1
b1r1n1n1/1R1PN3/6B1/2p1Q1Rr/Kq1bQ2R/pQ2R1N1/p3n1B1/k2b1RB1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Bd7 hxg5 Bc8 f4 Kf7 g4 e5 b4 a5 d4 c5 Kd2 h5 Kc3 h4 d6 a3 Kb3 h3 g6+ Kf6 d5 a2 g7 e4 d7 e3 g5+ Ke7 d6+ Kf7 f6 Ke6 b5 e2 b6 e1N g6 h2 f7 Kf5 b7 Ke4 f5 Qf6 d8Q Ng2 d7 Qe5 f6 Nh4 Nc3+ Kf5 Nd5 Ke4 Be3 Bd6 f8Q Qf4 f7 Nf3 Qh4 Nh6 g8B Be5 g7 Qg4 Ka4 Nd4 Ne2 Na6 b8R Nc7 Qd6 Bb7 f8R Ne8 Bf7 Ng8 Bg1 Rh5 Ne7 Bc6+ Rb5 Rc8 Qb3 Ba8 Re1 Qf4 Rb7 Bf6 Qb4 Kd3 Qe5 Kc2 Ng3 Ne2 Bg2 Qc4 Bg6+ Qe4 Kb5 a4 Qh3 a3 Ka4 Nd4 Re3 Ne2 Qhe6 Kc1 Q6f5 Qb1 Qee4 Bd4 Qb3 Qb2 Qff4 Qc3 Rf5 Qb2 Qee5 Kb1 Qfe4+ Ka1 Rf4 Qc3 Rh4 Qe1 Bf2 Qb1 Rf1 h1B Bg1 Qe1 Bh3 Bf3 Bg2 Nh6 g8R Bg4 Rg7 Ng8 Ref3 Nf4 Re3 Bd1 Rf7 Qc3 Rf5 Ne2 Rg5 Qb4+
2r2K2/NBP1B3/2pn1Q2/Rn2b1bN/1BqBn3/RB1kp1R1/N1p3r1/1Q3b2 w - - 0 1 illegal: No proof kernel
QQ1RQ2b/K1pB2nr/1p2bb2/1R3N1p/1Q1BQN2/1nN1q1rP/r7/6kB w - - 0 1 legal: proof: c4 Nf6 b4 Ne4 c5 Nf6 b5 Ng8 b6 axb6 c6 Ra6 Nh3 Ra3 Ng1 Ra8 cxb7 e5 g4 f5 gxf5 Ra5 d4 Ra7 dxe5 Ra8 Kd2 Kf7 Kc3 g5 Kc4 h5 Kb5 d5 e4 g4 a4 d4 f4 g3 h3 d3 a5 d2 a6 g2 f6 Kg6 e6 Rh7 e7 Rg7 e8B+ Kh6 f7 Qe7 f5 Kg5 e5 Kf4 f6 Ke3 e6 Kf2 a7 Rg3 Qa4 d1R Be3+ Ke1 Ne2 g1B Qe4 Rd7 Nf4 Rd4 Nc3+ Rd1 Bd7 Qe8 e7 Rg6 Bg2 Na6 b8Q Rg3 Rb1 Bg7 f8Q Bh8 f7 Nc5 Bd4+ Re3 Rh2 Nf6 Bh1 Kf1 Rd2 Nb3 Qg8 Rg3 f8Q Bf2 Qc4+ Kg1 Qb4 Rf1 Rbb2 Ra1 Qf7 Ra2 Qfg6 Qg8 e8N Qe6 Nd6 Ne8 Nf5 Ng7 Qe8 Qe7 Qd3 Qe3 Qde4 Ba6+ Kc6 Bc4 Kb7 Be6 Qa4 Nc1 Rb5 Nb3 Qb4 Be1 Rd3 Bd2 Qbd8 Rc8 a8Q Bc1 Rd2 Ba3 Ka7 Rb8 Qa5 Be7 Qc8 Bf6 Qcb7 Rc2 Qb4 Rd8 Qbb8 Rb2 Bc6 Rd7 Rd3 Re7 Bd7 Ra2+ Qa5 Rg4 Bc6 Kh2 Be5 Kg1 Rd8 Rg3 Bd4 Rf7 Bd7 Re7 Qf7 Ne8 Qg8 Rh7 Qf8 Rf2 Qab4 Ng7 Qe8 Ra2+
1bN2k2/1P5B/1r4R1/b2nr1Rq/3Rp1Qp/K2nB3/B2N1rpQ/B3N1Bb w - - 0 1 illegal: No proof kernel
K2NB1b1/N3R1n1/q5n1/kr2p1N1/2q4Q/BQ3p1R/p2brP1b/3RR1BR w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 Ke2 Kd7 Ke3 Kc7 c4 a5 h4 f5 d4 g5 b6+ Kb7 c6+ Ka6 h6 e6 h7 a4 h5 a3 h6 a2 b7 g4 c7 g3 c5+ Ka5 d5 f4+ Kd4 f3 d6 g2 d7 e3 c6 e2 Nc3 e1B Qb3 Ra6 Nh3 g1Q Ng5 Qe8 d8N Qg3 Nb5 Bfb4 Ba3 Ra7 Rd1 Na6 b8B Rb7 Na7 Be7 Bb5 Bd7 c8R Rb6 Rc7 Qg6 Rb7 Qg2 c7 Bd2 c8R Nc5 Bh2 Qf1 Bg1 Bd6 Rcc7 Bc8 Be8 Bh2 Re7 Rb5 Rb8 e5+ Kd5 Ne6+ Kc6 Ng7+ Kc7 Qe2 Rb6 Qf7 Kb8 Qfc4 Ka8 Be6 Rd6 Qed3 Rd4 Bf7 Re4 Qd6 Ree1 Qa6 Rb7 Ne7 Rd7 Rf8 h8R Bg8 h7 Ng6 Re7 Be6 Rg8 Rf5 h8Q Rf4 Qh4 Re4 Rh8 Bf7 Qg3 Re3 Rh3 Bg8 Qh4 Re2
3NbqNR/2Q1Qq1r/NB4RB/4pp1K/7r/bk2BBR1/1P3qp1/n1n1B3 w - - 0 1 illegal: No proof kernel
B1B3nk/1bKQ1rr1/B2NQ3/R1pp2p1/3rq3/2P5/2QN1NB1/b1nR2qB w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Nc6 g5 Nb8 g6 Qf6 Be3 Qd8 Bg5 hxg5 Kd2 c5 Ke3 a5 Ke4 f5+ Kd5 d6 b4 f4 h4 f3 e4 a4 c3 f2 b6 a3 h5 a2 b7 Rh7 h6 Qf6 e6 Qf5+ e5 Rh8 e7 Ra6 h7 Ra8 b5 Ra6 b6 Qh3 Qc2 Ra4 Nd2 Rb4 Bg2 Qh4 Nh3 f1Q Nf2 Qb5 Rhd1 Nh6 g8B Nc6 b8Q Nd4 b7 Qe2 g7 Qe1 Qc7 Nf7 b8Q Nh6 Qbb6 Ne2 Kc6 Qe4+ Bd5 Qf1 g8B Qg1 Be6 Rg8 h8N Rg7 Nf7 Nc1 Qcb7 Rd4 Kc7 Ng8 Bh1 Qe3 Bdg2 d5 Bf5 Qe4 Qe6 Qee1 Qa7 Bb7 Bd3 Qe4 Ba6 Qh4 Rb1 a1R Rb5 Qe4 Ra5 Ba8 Nh6 Rb1 Nf5 Rb8 Qb7 Rd8 Qbc8 Bb7 Qed7+ Kf7 e6+ Kg6 e8B+ Kh7 e7 Kh8 Nd6 Rf7 Qe6 Bg7 Beb5 Be5 Bc6 Bf4 Qcd7 Rdf8 e8B Rg7 Bg6 Rff7 Bf5 Nb3 Nf3 Bc1 Nd2 Bb2 Bfh3 Nc1 Bg4 Bc8 Ba8 Bb7 Bge2 Bc6 Bc8 Ba1 Bea6 Bb7
6qk/b3nr2/2BBNPQ1/1b2BQr1/2R2Q2/p2K1QNp/n1pn3R/2R2q1Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 g4 Kg7 d4 e5 f4 h5 b4 c5 b6 a5 b5 a4 g5 h3 g6 a3 b7 c4 b6 h2 d6 c3 f6+ Kh6 d5 h4 g7 Kh7 d7 h3 f5 c2 f7 e4 d6 e3 Nc3 Nc6 b8Q Ra7 b7 Nge7 g8Q+ Kh6 Ne4 Nd4+ Kd3 Qa5 d8Q Ng6 d7 Rh7 Bg2 Qa4 Bb2 e2 Qf6 e1Q d8R Ne2 Ng3 Bd7 Rc1 Qg4 Nf3 Bc5 f8Q+ Rg7 Nd4 Nc3 Rc8 Na2 Qf4+ Qg5 Qd5 Kh7 b8B Ne7 Ne6 Qf1+ Qe2 Bf2 Rc4 Bb5 B2e5 Rc7 Q8f7 Kh8 Q6g6 Ba7 f6 Qg4 Qgf5 Rg5 Q7g6 Rd7 Bbd6 Rc7 Rg1 h1N Be4 Rb7 Rg2 Rd7 Rh2 Nf2+ Kd2 Rb7 Qef3 Rc7 Qb7 Rd7 Bc6 Rc7 Qe2 Ne4+ Kd3 Nd2 Bd7 Rc8 Qh1 Rf8 Be8 Rf7 Bc6 Qh4 Be8 Qh7 Bc6 Qd1 Qeg4 Qg8 Qgf3 Qf1+
2Kb1q2/1rn2RBQ/b2NP2n/NQ5R/3Q1pbp/1Rq5/pN1N4/kN4rB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 c5 g4 a5 d4 f5 g6 h5 g7 f3 d6 f2 d5 f4 d7 a4 Ke6 a3 b6 a2 g5 Ne7 g8R Ra7 b7 Ra3 e4+ Rd3 e5 Qc7 d6 Qc6 b5 Rh7 g6 Rg7 b6 Qe4 Bb2 Qf3 Bg2 Qc6 Nf3 f1B Nfd2+ Kb4 Rh4 c4 Bh1 Rf7 g7 Na6 b8N c3 b7 Qe4 Nc6+ Kb5 b8Q+ Bb7 d8N c2 Kd7 Ka4 e6 Be2 Na5 Bf1 Ndc6 Be2 Ne5 Nc7 Nec4 Ba6 Be5 Qb7 Nb2+ Kb4 Qg1 c1Q Qd4+ Qc4 Rh8 Rg3 g8Q Rg1 Bg7 Bg4 Rh7 Nf5+ Kd8 Qb5 d7 Nh6 Qb7 Bd6 Kc8 Be7 d8N Bf6 Rh2 Rd7 Nf7 Bd8 Rh3 h4 Nd6 Qb6 Re3 Rf7 Re5 Qb5 Rh5 Re7 Nc3 Ka3 Rb1 Qf5 Qe8 Qf8 Qb5 Rf7 Bh8 Rf5 Rf7 Rc5 Bf6 Rc6 Bg7 Rb6 Kd7 Qd3 Qbe4 Qc2 Qh7 Rb7 Kc8 Qe8 Nd3 Qf8 Rb4 Qb3 Nc5 Kb2 Nd3+ Ka1 Ncb1+ Qb2 Rb3 Qc3 Nb2 Rg2 Qbd3 Rg3 Qb5 Rg1
1RBK1q1r/1Nr2r1B/2P1Q1n1/3b4/R2NBqpB/2QN2pn/1p5Q/b4k1B w - - 0 1 illegal: No possible last move, all moves rejected
N2Q1qk1/2nB1b1r/1P3p1b/3QNQ2/q2B1Rb1/QNK5/QR3ppn/3rB3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kd2 a5 e4 g5 b4 d5 h4 f3 c4 a4 b6 a3 h6 d4 e5 f2 c6 a2 c5 g4 c7 d3 h5 g3 e6 g2 c6 Ra6 b7 Rb6 b5 Nf6 h7 Qd5 e7 Bg7 h6 Qc4 Rh4 Nfd7 Rf4 Bf8 Nf3 Qd5 Kc3 d2 Ne5 Na6 b8Q Ndc5 Qa8 Nb8 Qa3 Bb7 c8N Ne6 c7 Rd6 Nb6 Nd8 c8Q Nc6 Qf5 Nd4 Na8 Ba6 b6 N8e6 Bb5+ Rd7 Qf3 d1B Nd2 Nc7 Rb1 a1Q+ Rb2 Qd6 Qd5 Bg4 Nb3 Nf3 Bd2 Nh2 Be1 Qa2 Ba4 Bc4 Bc6 Rg8 h8Q Rg7 Qg8 Rh7 Qac5 Qa4 Qa3 Rh8 h7 Qf6 Qgg6 Bh6 Qc2 Qg7 Qgf5 Qf8 Qb1 Rg8 h8B Rg7 Qba2 Rh7 Bb7 Rd6 Bc8 Rd8 Ng6 Rd7 Bd4 f6 Ne5 Rd8 Qdc5 Be6 Qd5 Rd6 Nd3 Kf7 e8Q+ Kg8 Ne5 Bf7 Qd8 Re6 Bd7 Rc6+ Kd3 Rc1 Kd2 Ra1 Kc3 Rd1
RB1N4/4n3/1p1r2pP/2B1kbQB/r2N1R1N/1pbq1QB1/1nqQ1B2/2b1K3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 h4 Kf6 d4 c5 f4 e5 h6 g6 a5 b3 a6 c4 a7 e4 h7 e3 d6 c3 h5 e2 d7 b6 h6 c2 d5 Nc6 d6 Rb8 a8Q Nb4 Qd2 Ba6 Nf3 Bd3 Rh4 Ne7 Na3 Nec6 Nb5 Qe8 d8N Rb7 d7 Bc4 Nbd4 Rg8 h8B+ Ke7 f6+ Kd6 f5 Na6 f7 Ra7 f6 Rg7 Rf4 Be6 Nh4 Ne7 Qf3 Bf5 Bh3 Ra8 Bg4 Nb4 Bh5 Ke5 Ba3 c1B Ra2 Na6 Bc5 Nb4 Ra1 Rg8 Ra2 Bg7 f8B Ra3 f7 Bf6 Bfg7 Ra4 f8B Qf7 Ra1 Qc4 Ra3 Nbd5 Ra1 Nc3 Ra2 Nd1 Ra1 Nb2 Ra3 Rb4 Ra8 Nc8 Bfe7 Qc2 Bef8 Ra4 Bfe7 Re8 Bgf8 Bg7 Bed6+ Kf6 Bb8 Re6 Bfd6 Ne7 Rg4 Qd3 Bg3 Rd6 Rf4 Qc2 N8e6 Ke5 d8Q Ng8 Qg5 Ne7 Nd8 Bf6 Kf2 e1Q+ Kg2 Qed1 Kf2 Qb1 Bg7 Qdc2 Ke1 Qd3 Ne2 Qbc2 Nf7+ Ke6 Nd8+ Kd7 Bh8 Bc3 Bhd4 Nd1 Bdf2 Nb2 Nf7 Ke6 Nd8+ Ke5 Nd4 Qb5 Qd3 Qa6 Qf3 Qad3
2Q2Q1B/1Nr1b1P1/1r5R/1kpNnq1Q/1NbnKN1q/3B3R/q2NppR1/8 w - - 0 1 illegal: No proof kernel
4k1NQ/1Q1qnp2/B1PnR1Np/1r2rq2/3b4/5pQq/1BB1KR2/Q1N2Q1b w - - 0 1 illegal: No possible last move, all moves rejected
2B5/1bRnp2r/2NNKb1q/2Q3Qn/rNRR3p/2Qq3p/2NBPkN1/5r2 w - - 0 1 legal: proof: g4 b5 h4 g5 a4 gxh4 axb5 d5 c4 f5 cxd5 Bd7 gxf5 Bc8 b4 Kf7 d4 Kf6 Kd2 Kg5 Kd3+ Kg4 Ke4 h5 Ke5 c5 f4 Kg3 d6 a5 d7 a4 b6 c4 b7 a3 d5 c3 d6 c2 f6 a2 f5 Ra6 b5 Qe8 d8R Ra3 d7 Bg7 b6 Kf2 Qd2 Ra4 Nf3 Rg4 Na3 Rf4 Ne1 Rb4 Bh3 Bf8 f7 Rb3 f6 Rh6 Ng2 Na6 b8N Rc3 b7 Nc7 Na6 Kg3 b8N Kf2 Nb4 Bg7 f8Q Bh8 Qg7 Bb7 f7 Na6 f8Q+ Nf6 Qd6 Rb3 Qfg8 Rb1 Bg5 Rh7 Rc1 Qf8 Rc8 Qd8 N8c6 Nb8 Rc7 Rb3 Be6 h3 Qc5+ Kg3 Rd1 h4 Rac1 a1R Bf5 Qf8 d8N Rf3 Bc8 Nbd7+ Ke6 Rf1 Nf7 Nh5 Nd6 Qf3 Qb2 Bf6 Rd4 Qd3 Be3+ Qg6 Bg5 Qh6 Bd2+ Kf2 Qgg5 Ra2 Rb1 c1Q Qa1 Qc3 Rc1 Qg3 Rcc4 Qd3 Nac2 Ra3 Qc3 Ra4
Q1r2BQ1/1R1p1R1B/5b2/1BNQQ3/pnq1r2k/qnN2q1P/2p1Q3/RK1b4 w - - 0 1 illegal: No possible last move, all moves rejected
3q2K1/2p1p2N/1nqR3R/3Q1r1n/N1bRR1P1/5r1p/R3QbBN/2kqB2Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 f4 a5 g4 a4 f6 h3 b6 a3 f5 h4 f7 h2 b7 a2 f6 Ra4 d6 Ra8 d7 Rh7 Ke6 Ra3 d5 Rg3 d6 Rh5 Qe2 Kb3 Nf3 Nc6 b8Q+ Nb4 Bd2 Kc2 Qb7 Rb5 Nc3 Qe8 Qd5 Rg1 Bg2 Nh6 Na4 Bb7 d8R Bg7 f8Q Ng8 d7 Rc5 f7 Bf6 Qh6 Bc8 f8N Rf1 Nh7 Ba6 b3 Bc3 Be1+ Bd2 Qhh5 Bc4 Qh6 Nf6 Qh5 Nd3 b4 Ne5 b5 Rf2 Qh6 Nh5 b6 Rb5 b7 h3 b8R Rf1 Rb6 Rc5 Rg1 h1Q Nh2 Rf3 Rd6 Rb5 Rc8 Rc5 d8R Nd7 Rb8 Ra5 Rbb6 Rb5 Rbc6 Nb6 Qf4 Qd7+ Kf7 Ra5 Kg8 Rb5 Qfe5 Ra5 Qf1 Be3 Rh6 Bf2 Rcd6 Rb5 Qee2+ Kb3 Rc1 a1Q Rc2 Qd1 Ra2 Ra5 Qde6 Raf5 Rd4 Qb5 R8d6 Qd7 Qd5 Qd2 Ra3+ Kc2 Ra2+ Kc1 Qe4 Qd1 Qfe2 Bg3 Rf1 R3f4 Rf3 Bf2 Re3 Rf3 Qee6 Qb3 Ree4 Qbb5 Qa8 Qbc6 Qd5 Qg1 Bb4 Qd1 Be1 Qc2 Qb7 Qd1 Ree6 R5f4 Qde5 Ra3 Bf1 Qc5 Qh1 Rf5 Qed5 Raf3 Ree4 Qcc6 Bg2 Qd8+
nb2QRRq/1p5N/6N1/kB2n2N/B1r2p2/N2r1R2/2qpqQbP/1NB4K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 d5 Kg2 Kd7 a4 Kc6 c4 f5 e4 g5 h6 d4 a5 g4 h7 b3 a6 d3 a7 d2 e6 b2 e7 f4 e8Q+ Qd7 e5 g3 e6 Na6 e7 Nh6 Qe1 Nf7 Ne2 Kc7 c6 Kb6 c5+ Kb5 c7 Ne5 c6 Nc5 Ra3 Ncd3 Rg1 Ng6 Kh1 Nb4 Rf3 Qh3 Qf2 Na6 Rg2 Bd7 c8R Ne5 c7 Ka5 Rg1 Rb8 a8N Bc6 Nb6 Bd5 Rd8 Rc8 Rg2 Rg8 h8N Bg7 Nf7 Qh8 Ng5 Bc6 Nh7 Be4 Na3 b1Q Na4 Qc2 Nac3 Rf8 Rg1 Rf6 Ncb1 Rd6 Rg2 Rd3 Rg1 Rb8 c8N Nc7 Nd4 Bf6 Nf5 Na8 Ng7 Bd5 Nh5 Be4 Nb6 Rc8 Nd7 Rc4 Ndf8 Bd5 Ng6 Bg7 Qg8 Bf8 e8B Bd6 Ba4 Bb8 Rf8 Be4 Bh3 Bd5 Bhd7 Bc6 Re1 Bd5 Bdb5 g2+ Kg1 Be4 Qf7 Bd5 Qe8 Be6 Qa7+ Kb4 Nh4 Bh3 Qd4 Ka5 Re2 Nc6 Re7 Ne5 Rg7 Bf5 Ng6 Bd7 Rgg8 Bh3 Kf2 g1Q+ Ke2 Qgd1+ Kf2 Bf1 Kg1 Qe1 Qf2 Qe2 Kh1 Bg2+
4B2k/1p6/2B2K1n/Bpb1QNr1/1BpR1Br1/RN1Qn2q/qq3N1P/2Q2b2 w - - 0 1 legal: proof: f4 d5 b4 h5 c4 e5 cxd5 h4 fxe5 a6 b5 axb5 g3 Ra3 gxh4 Ra7 h5 Ra8 Kf2 f5 Kf3 Kf7 Kf4 c5 e4 g6 d4 Kg7 a4 c4 a5 Nc6 e6 Nce7 Ke5 f4 h6+ Kh7 a6 g5 d6 g4 d7 g3 a7 g2 d5 f3 d6 f2 Nh3 g1Q Qd3 Nd5 e7 Qg2 e8B Nf4 Ra3 Nh5 Nd2 Ng7 Nb3 Ne6 Bf4 Qg3 Bg2 f1Q Nf2 Qe7 d8B Qb1 d7 Qf3 Rd1 Qb4 Ba5 Qa4 d8B Qh3 Bb4 Qf3 Bda5 Rb8 a8Q Qh3 Qa7 Qc2 Qae3 Nc7 Qc1 Nd5 Rd2 Ne3 Rd1 Ne7 Kf6 N7f5 e5 Rg8 e6 Rg5 e7 Kh8 h7 Nh6 Bgc6 Qe2 Qe4 Qc2 Rd4 Qb2 Qd3 Rg4 Bh5 Rg5 e8N Bc5 Nd6 Bg4 Bg6 Be2 Nf5 Rg8 Bge8 Bf1 Nd6 Rg4 Ra2 Qaa3 Ra1 Qb1 Ra2 Qab2 Ra3 Q2a2 Ke6 Kg7 h8Q+ Kf8 Nf5 Qbb2 Qe5 R8g5 Kf6 Kg8 Na1 Kh7 Nb3 Kh8
2QK1nr1/p2b4/BB1Rq1pR/3N2b1/p7/rBBQR3/PNn2B1b/k2qN3 w - - 0 1 legal: proof: f4 b5 c4 h5 g4 e5 fxe5 d5 gxh5 Qg5 cxd5 Qd8 Qa4 bxa4 Kf2 Kd7 Ke3 f5 Kf4 c5 h4 g6 e4 c4 b4 c3 d4 c2 d6 Kc6 d5+ Kb6 h6 Ba6 h5 Nc6 h7 Qd7 Kg5 f4 e6 f3 e5 f2 h6 Bg7 e7 Nd4 e8N Bb5 e6 Qc7 e7 Qc8 d7 Nf5 d8R Qb7 d6 Bf8 d7 Qe4 Nc7 Bc6 e8B Ne3 b5 Kc5 b6 Kb4 b7 Nf5 b8Q+ Bb5 Qc8 Qc4 Nd2 Kc3 Ngf3 Qc5 Nc4 Qe5 Ne1 Qe6 Be3 c1B Nb2 Qe4 Bf7 Rb8 Bb3 Bc6 Ba6 f1Q Re8 Bd2 d8B Qe6 Rd1 Nf6 Rh2 Bc1 Rd6 Rg8 h8Q Nd4 h7 Bd7 Rh6 Nc2 Qg7 Rb4 h8B Rf4 Bf2 Rf3+ Kh4 Bf4 Nd5+ Kd2 Ba5+ Kc1 Bab6 Nh7 Qgc3 Kb1 Qd3 Ka1 Bc3 Bg7 Re7 Nf8 Re8 Bh2 Kg5 Bge5 Re7 Qe2 Re8 Qd1 Re7 Qh3 Ree6 Bef4+ Kf6 Qg4 Ke7 Rh3 Re3 Qe6+ Kd8 Rg3 Qdc4 Qd3 Re2 Qde3 Be5 Nb4 Bd1 Qd2 Bed4 Rc3 Re3 Ra3 Bb3 Nc2 Qd3 Qd1 Bc3 Bg5+
k3b1QK/3Q1N2/rnq5/1p1p3b/QP1B1RBr/R1N3Bp/RR1n2R1/6bb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 e5 fxe5 Nc6 d4 cxd4 a5 Qb6 axb6 Nb8 Kf2 Kd8 Kf3 h5 Ke4 a5 Kf5 d5+ e6 h4 e4 a4 b4 f6 Kg6 d3 c4 f5 g4 h3 e5 f4 e7+ Kd7 e8R Kc6 e6 Kb7 e7 f3 c5 d2 c6+ Ka6 c7 Kb7 Rh2 f2 Bb2 a3 Nc3 a2 Nf3 Nc6 Be2 f1B Qa4 d1B Ne5 Bd7 c8R Nf6 Nf7 Ra6 Ra8 Bh6 Rf8 Na5 e8Q Kc6 b7 Ng8 b8B Bb3 Bg3 Bg2 Qe7 Be8 Qd7+ Kb6 Rb1 Bc4 Ba1 Bg7 Rb2 Rh4 Ra7 Bh6 Kh7 Bh1 g6 Nf6+ Kh8 Nb3 g7 Nd2 g8R Bd3 g5 Bg6 Ra8 Bh5 g6 Be3 g7 Bg1 Ra7 Nfe4 Bg4 Nd6 Nd8 N6c4 Rf4 Bf2 Nf7 Bg1 Qf5 Kc6 Ra8 Kb7 Ra7+ Kb8 Qd7 Nb6 Rg2 Bd4 Rf8 Bg1 g8Q Bh2 Rb3 Bg1 Ra3 Nb3 Bb2 a1Q Ra2 Qe1 Ba1 Qc1 Rff2+ Qf4 Rfb2 Qd6 Rbd2 Bf2 Ne2 Nc1 Qc2 Qf4 Bd4 Ra5 Nd8 Qd6 Nc3 Nb3 Rf4 Qc6 Nf7 Bg1 Qd1 Ra3 Rdb2 Nd2 Rc7 Ra8 Rca7 Bh2 R7a3 Bg1 Qb3 Ra6 Qa4 Ka8
1QNr1b1B/1BB4p/2p1R3/Q7/RnBN1R1q/2Q1Prn1/2bKr1p1/1r1B3k w - - 0 1 illegal: No proof kernel
6nr/1k2p2R/1B1n4/1Q1rN3/p1bN1RN1/2Pb1NNp/b2BKQ1b/2q1Q2B w - - 0 1 illegal: No possible last move, all moves rejected
n2Kq1R1/R1pR1P2/1BNNp3/3Q4/1RNb1knp/nQR3rQ/bn4B1/5r2 w - - 0 1 illegal: No possible last move, all moves rejected
q3Q3/3BKr2/rNB4p/RNp1N2P/1Rq3bp/1q2Rn2/1r3B1n/3kNN1Q w - - 0 1 illegal: No proof kernel
r1b3r1/2K3Qq/1B2N1B1/3BQ1Nr/2R2Rn1/2np1pp1/Q1B1nP2/1B1q2kN w - - 0 1 legal: proof: g4 d5 d4 a5 b4 axb4 e3 h5 gxh5 c5 Ke2 e6 Kd2 Be7 Ke1 Bf6 dxc5 d4 Qd2 d3 Qd1 Bd4 exd4 Qb6 Qe2 Qc7 Qd1 Qd8 Kd2 Kd7 Ke3 Kc6 Ke4 g5 Ke5 b5 c4 f5 a4 b3 h4 g4 d5+ Kb7 h6 b4 h5 b2 h7 b3 a5 f4 d6 Kc6 h6 f3 d7 Qe8 d8N+ Kc7 c6 Qg6 c5 Na6 Nh3 Qf7 Be3 Bb7 Qc2 Nb4 a6 Nd5 a7 Rc8 a8B Nde7 Be2 Ba6 Rc1 Nd5 Bd1 Qe8 Ra4 Nf4 Nd2 b1N Ng5 b2 Nde4 Nc3 Ng3 b1Q Qa2 Qb7 Bc2 Nfe2 Rf4 Nf6 Nh1 Rg8 h8Q g3 h7 Qb1 Bb7 Qd7 Qg7 Ra8 h8Q Qb3 Bb1 Qd1 Qh5 Nce4 Rc4 N4c3 Qf8 Qh7 Qg7+ Kb8 Kd6 e5 Bc2 e4 Nde6 Ng4 c7+ Ka7 Bd4 e3 c8B Kb8 Bc6 Bb7 B8d7 Bc8 B6a4 Ka7 c6+ Ka6 Bb1 Ka5 Bac2+ Kb5 Rc5+ Kb4 c7 Nc1 Bb5 e2 Be8 e1R Bg6 Re5 Kc6 N1e2 Kb6 Ba6 c8B Rd5 Bd7 Bc8 Bc6 Rf5 Bd5 Re5 Kc7 Rf5 Nh3 Rg5 Qh4 Rh5 Rc4+ Kb5 Qd8 Na4 Bde4 Ka5 Bb6+ Kb5 Rc5+ Kb4 Re5 Kc3 Qd6 Kd2 Rc5 Ke1 Qe5 Kf1 Bd5 Kg2 Rcc4 Nac3 Nhg5 Kg1
3K4/1N5Q/R1NQ1BBp/pqn1q3/NR4QP/1Qqn2bR/3npk2/2Qb2r1 w - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 gxf5 d5 a4 Qd7 axb5 Qd6 e4 dxe4 f6 Qd8 f5 Ra6 Qg4 Rd6 Qd1 Rd5 cxd5 Qd6 Kf2 Qd7 Ke1 Qd8 Kf2 Kf7 Ke3 e5 h4 g5 b4 c5 d4 g4 d6 c4 b6 c3 d5 g3 b5 h6 d7 c2 b7 g2 b6 Qe7 d8Q Na6 b8R Bd7 d6 Rh7 b7 Rg7 Rh3 Rg6 Qc7 Rg4 Bb2 c1N Nf3 Nd3 Nd4 Be8 d7 Bg7 d8N+ Kf8 f7 Rg5 N4c6 Bd7 Qc1 Nac5 Nc3 Nf6 Ra8 Rg6 b8Q g1Q+ Ke2 e3 Kf3 e2 Ra4 e1Q Nb7+ Qe8 Rb4 Qd4 Ra6 Nfe4 Na4 Rg1 Bg2 Qec3 Kg4 Bh8 Qbc8 Kg7 f8Q+ Kh7 Qfd6 Kg7 Qd5 Kf6 Qb3 Qd6 Ba1 Nd2 Bb2 Be6 Qh7 e4 Qcd7 e3 Qc8 Re1 Be4 e2 Ba1 Qed7 Kh5 Qg3 Qcg8 Rg1 Qg4 Bg7 Bb2 Qd5 Ba1 Qc4 Bb2 Qb5 Ba1 Kf7 f6 Qge5+ Bf5 Ke8 Kg6 Kd7 f7 Bf6 Nbd8 Kd6 f8Q+ Be7 Be4 Bc4 Bf5 Kd5 Kf7 Bd6 Nb7 Bc7 Bg6 Bb8 Qbb2 Bb3 Qe7 Bd1 Ke8 Qh5 Kd8 Bg3 Qf6 Qhe5 Qb3+ Qcc4 Nb8 Qf5 Qgg5 Ke4 Qg4+ Ke3 Nc6 Kf2 Qd6 Qg5+ Bf6 Qe5 Nc3 Qcd4 Na4 Qc3
bN3q1n/k3r1B1/p1p2QN1/QRnnKNp1/Rb1NB3/P6B/2q2q2/1N3R2 w - - 0 1 legal: proof: g4 f5 gxf5 e5 h4 g5 d4 b5 dxe5 a6 c4 bxc4 h5 Ra7 Qb3 Rb7 Qd3 Rb6 Qd1 Rg6 hxg6 Be7 Rh3 Ba3 Rh1 Bf8 Kd2 d5 Kc3 Kd7 Kd4 Kc6 e4 Kb7 f4 h5 b4 h4 b5 c6 f6 h3 g7 c3 f5 h2 b6 c2 e6 Qd6 e5 Qe7 f7 Nh6 g8R Qe8 e7 Nd7 f6 Bg7 f8N Qg6 e8B Rh7 e6 Nf7 e7 Nd6 Ne2 Nc5 Qd2 Be6 Bb2 c1Q Bh3 Qf1 Ke5 d4 Qa5 d3 Nd4 Qf2 Rf1 h1Q Bd7 d2 e8N Kb8 b7 Ka7 b8N Qc2 Ng6 Bf8 f7 d1N Ng7 Ne3 Ngf5 Qhf3 Rh8 Be7 f8Q Nd5 Qf6 Qa3 Be8 Bc8 Bd7 Qb4 a3 Rg7 Rh4 Bb7 Bg2 Ba8 Be4 Bf8 Ra2 Re7+ Be6 Qb6 Bc3 Qd8 Rb2 Rg7 Rg4 Be7 Rf4 Qf8 Rb5 Rf7 Ng3 Rh7 Bh3 Nf7+ Kf5 Rh5 Nde2 Nh8 Qf7 Qd8 Bd3 Qe1 Ra4 Rh7 Be4 Nb3 Be5 Rg7 Nd4 Qf8 Bf6 Rh7 Ke5 Qef2 Ngf5 Rg7 Qe6 Bb4 Qd6 Rb7 Bg7 Nc5 Qf6 Re7+
1B6/Q2p1QN1/4pBB1/3k3K/1Q1nrnNB/2RN1b2/1RB1Ppqr/1nr1q3 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 e6 g4 Bh6 h4 Ke7 g6 Na6 g7 Rb8 g5 Ke8 g6 Bg5 hxg5 Ra8 Bd2 Nb8 Be3 Na6 Bc1 Nb8 Kf2 Ke7 Kf3 Kd6 Kg4 a5 b4 f5+ Kh5 f4 c4 a4 c5+ Ke5 c6 a3 c7 h6 b6 f3 b5 d3 b7 a2 b6 d2 Bh3 f2 Nf3+ Kd5 Bf5 Na6 b8B Qf8 b7 Qe8 Bc2 Kc6 Na3 Kd5 Rb1 a1Q Qe1 d1R Qb4 Qf7 Nh2 Rd2 Nc4 Qf3+ Ng4 Qg2 Rb2 Rd1 Nce5 Ne7 g8B Nc6 g7 Nd4 g6 Nc5 Bg5 Rc1 Nd3 Ncb3 Rh3 Ra4 Bh7 Nd2 g8N Nb1 g7 Nb5 Bh4 Nd4 Kg6 h5 Bf6 h4 Nh6 Ra8 g8Q Ra4 Rg3 h3 Nf5 h2 Ng7 h1N Rh3 Ng3 Qf7 Ne4 Kh5 Ng5 Re3 Re8 Bg6 Nh3 Bh4 Rd8 Ba7 Rf8 b8B Bb7 c8Q Bc6 Qa6 Rh8+ Nh6 Bb7 Be5 Ba8 Bab8 Bc6 Qa7 Ba8 Ra2 Qc3 Bef6 Qe1 Rg3 Qd1 Ne5 Nc6 Qbb7 Nf4+ Kg4 Qe1 Rb2 Rc4 Bhg5 Rh7 Ng8 Rh2 Bh4 Nh3+ Kh5 Rf4 Qbb6 Nd4 Nh6 Bb7 Rgb3 Bc6 Nd3 Kc4 Qba5 Bf3+ Ng4 Re4 Qb4+ Kd5 Rc3 Nf4+
1n2RBr1/1r3RNQ/N1p1q3/R4pq1/N1K1N2r/pB1N4/2P4k/bQ2Qbq1 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 b4 h5 b3 g5 Nc6 axb3 Nge7 b4 Ng6 hxg6 Ne7 b5 Ng8 Kd2 Ke7 Kc3 Ke6 e4 a5 b4 f5 b6 d5 g7 h5 g6 a4 b7 c6 b8Q h4 b5 h3 b6 h2 b7 d4+ Kc4 f3 Bh6 f2 Qe1 d3 Ne2 d2 Nf4+ Kd7 e6+ Ke7 e5 d1Q Nc3 Rh7 Nd3 Nf6 g8Q Qe8 g7 Qc1 Bg2 f1R Bd5 Nd7 Ra3 Rh8 Qh7 Qg5 Rg1 h1Q g8N+ Kd8 Ra1 Bg7 Nf6 Ke7 Nfe4 Qg8 Rg2 Qg1 Ra2 Rf4 Re2 Rh4 Ra1 Ke8 e7 Ra7 Re3 Bf6 Bf8 Qe6 Rh3 Rg8 Rg3 Q5e3 Rg7 Qeg5 Rf7 Bg7 Rd1 a3 Na4 Bh8 Rb1 Bf6 Rb5 Bg7 Ra5 Bh8 Qc7 Nb8 Qb6 Kd7 Qbb1 Na6 b8R Rb7 Ra8 Nb8 e8N+ Qee7 Ng7 Kc7 e6 Qd7 e7 Qe6 Nh5 Ba1 Nhf4 Kd7 Nb4 Kc7 Na6+ Kd7 Nec3 Kd6 Ne4+ Ke5 e8N Qef6 Ne2 Qe6 Nc1 Kf4 Ng7 Kf3 Nd3 Kg2 Ndb4 Kh1 Nd3 Kh2 N6c5 Rb6 Nf4 Bd7 Kd3 Na6 Re8 Nb8 Bb3 Bc8 Nd5 Qeg6 Nc7 Be6 N7a6 Rb7 Nb2 Q6h6 Nca4 Bc4+ Kc3 Bb5 Kb4 Bf1+ Kc3 Bh3 Kc4 Bf1+ Nd3 Qe6+
Q2N3k/R2Bp1r1/1n4q1/2N2Q2/RQ1n1R1B/K1p2p2/QB1QPn2/br1q3r w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bg7 g4 Qd6 h3 Bf8 g5 Bg4 hxg4 Qd8 d4 h5 Kd2 c5 Kc3 a5 Kb3 f5 g6 f3 g7 Kf7 d6 f4 d5 f2 g5 f3 g6+ Kf6 b6 h4 b7 c4+ Ka3 h3 b4 c3 d7 h2 b5 a4 d6 Qc7 d8Q Ra7 b6 Ra6 d7 Qf4 Bh3 f1N Qd2 Qd4 Bb2 Qc4 Qc8 Qd3 d8R Rh7 Rd7 Nc6 b8B Ra5 b7 Rd5 Bg3 Nh6 g8Q Nd4 b8Q Rg7 Ra7 Rb5 Qa2 Ne3 Bd7 Nhg4 Nh3 Nd5 Ng5 Nb6 Nf7 Nf2 Nd8 Qf5 Rd1 h1R Bh4+ Qg5 Qd3 Rb4 Nd2 Rb5 Nb3 Rb4 Nc5 Rb5 Bc1 Rb1 Bg3 Qf5 Bb2 Qe4 Qd2 Qg4 Kb4 a3 Qa8 Qh5 Bh4+ Qg5 Qb3 a2 Ra4 Rh7 Ka3 Kg7 Qc4 Kh8 Qb4 Bh6 Rg1 Qf5 Rg4 Rg7 Re4 Be3 Rf4 Qg5 Qca6 Qg2 Qad3 Qg1 Qf5 Qd1 Qe1 Bc1 Qd2 Qg1 Ra7 Rg8 Qg5 Rh3 g7+ Kh7 Qe3 Rh1 Qf5+ Qg6 Qed3 Bd2 Qc2 Rbf1 Qd1 Bc1 Qd2 Nc8 Ka4 Nb6+ Ka5 Re1 Ba3 Rd1 Qfd3 Bb2 Qf5 Nc8 Ka4 Rdg1 Rc1 a1Q Rc2 Qe1 Rc1 Rf1 Ra1 Qb1 Ra2 Ba1 Bb2 Nb6+ Ka3 Nc2+ Kb3 Rd1 R2a4 Nd4+ Ka3 Qd3 Qe1 Rb1 Qc1 Qd1 Qcc2 Rf8 Qd2 Rf7 g8Q+ Kh6 R7a6 Rg7 Qa2 Kh7 Ra7 Kh8
kN1n1N2/1rb4N/qQR1p3/3pbr2/3P2rR/1Q3Q1N/2b1BNKp/1bBB4 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 a4 Ne4 h4 gxh4 a5 Nc3 b6 Nd5 b5 Nf6 Ne2 Bc8 Ng1 Ng8 a6 Nc6 Qe2 Na5 Qd1 Nb7 axb7 Bg7 Ra5 Bh6 Ra1 Bf8 b8N a5 f4 d5 Kf2 h5 g4 c5 b7 c4 g5 h3 f6 a4 g6 c3 d3 a3 f5 h2 g7 c2 b6 a2 Nd2 h4 Qf3 h3 Kg3 Ra7 Ba3 c1R Ne4 Rc4 Rc1 a1B Nf2 Rh5 Be2 Nh6 g8B Nf7 Bh7 e6 Rc3 Bd7 Bc1 Qc8 Rc2 Rb4 Rc6 Nd8 f7+ Ke7 Bg6 Bh6 f8N Be5+ Qf4 Bhg7 Nh7 Bc7 d4 Bge5 Be8 Rh4 B8h5 Rg4+ Kf3 Be8 Qg3 Bg6 f6+ Ke8 f7+ Ke7 f8N Bc2 Nbd7 Rb5 b8Q Qa6 b7 Rb1 Rc4 Kd6 Qg2 Ra8 Qa7 Rb2 b8Q Bb1 Qb3 Rb8 Bf4 Rb7 Bc1 Rd2 Nb8 Rd1 Nc6 Rf1 Qab6 Bc2 Ng6 Kd7 Nb8+ Kc8 Rc6 Bb1 Bd1 Bc2 Ngf8 Bb1 Ne2 Bc2 Nf4 Bb1 Rg1 h1B Be2 h2 Nh3 Rf4+ Kg3 Bc2 Qe4 Bf3 Qee3 Bfe4 Qf3 Bb1 Bg4 Bec2 Kg2 Rf5 Bh5 Re1 Bd1 Re4 Re1 Rh4 Re4 Rg4+ Qg3 Rg6 Rh4 Rgg5 Bhe2 Rg4 Qc5 Rb4 Qf3 Kb7 Qb6+ Ka8 Qb3 Re4 Qgf3 Rb5 Qa5 Rb7 Qab6 Rg4+
k2qR2B/5B2/b2N1N2/4bbrB/N5RK/np1pBqrp/1QQPB3/2bQ4 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 b5 hxg5 Nc6 Be2 axb4 Bf1 b3 c4 b4 Qc2 Nd4 Qd1 Nb5 cxb5 Ba6 Qg4 Bb7 Qd1 Bc8 g4 e5 a4 c5 f4 d5 Kf2 Kd7 Kg3 Kc7 f6 Kb8 g6 h5 g5 b2 f7 e4 g7 c4 b6 c3 b7 e3 f5 d4 a5 c2 a6 e2 g6 d3 a7+ Kc7 b8Q+ Kc6 f6 Qd4 Nh3 e1B+ Nf2 Bb7 Nc3 b1B Rh4 Qd8 Be2 Rh7 Rg4 Nh6 g8B Rg7 Kh4 Ba2 Na4 Be6 Bb2 c1Q Qc2+ Bc5 f8B Qd1 Bf7 Bf5 Bc3 Bd4 Bc5 Ba6 Rb1 Rg8 g7 b3 Qe5 Rb8 a8B+ Rb7 Ba1 Bb2 Qec3 Bc1 Q3b2 Kc7 Bb6+ Kb8 Be3 Rb5 Baf3 Re8 g8Q Ra5 Qg5 Rg8 Qf4+ Re5 Qg3 Rg7 Ne4 Ka8 Nd6+ Rd5 Nc4 Bf2 Nd6 Bg1 Qh3 Bh2 Qf1 Be5 Qh1 Qf1 Qg1 Qg2 Qgd1 Rg5 Be8 Qf1 f7 Qg2 f8N Nf7 Nh7 Qf2+ Kh3 h4 Nf6 Rg7 Nc8 Nd6 Bf7 Nb5 Nd6 Bd7 Be4 Rg8 Beg6 Na3 Bh5 Bf5 Qh1 Bb7 Nd7 Bf4 Bf3 Rg5 Bb6 Re5 Qa2 Re4 Bh8 Re5 Nf6 Re3 Ra1 Bb2 Re1 Bc1 Qab2 Bg3 Bd1 Rf3 Re8 Ba6 Be2 Qe3 Qhd1 Be5+ Kg2 Qe4 Be3 h3+ Kh1 Rf4+ Kh2 Qc6 Kg3 Rf3+ Kh4 Rg3 Nc8 Qg2 Nd6 Qf3
2bNq3/2pNb2Q/R1nQ2Nb/r6q/k2N1Q1R/2bp1rBR/3P1KBp/4N3 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 a4 Ne4 h4 gxh4 a5 Nc3 b6 Nd5 b5 Nf6 Ne2 Bc8 Ng1 Ng8 a6 Nc6 Qe2 Na5 Qd1 Nb7 axb7 Bg7 Ra5 Bh6 Ra1 Bf8 b8N e5 f4 d5 g4 h5 g5 a5 g6 a4 f6 d4 b7 e4 g7 d3 f5 e3 b6 h3 f7+ Ke7 f6+ Kd6 Qf3 Kc5 Nc3 Kb4 Bg2 h4 Qf4+ Kb3 Ba3 h2 Nc6 e2 b8R h3 b7 Qd4 Nf3 Qe5 Nb5 Ne7 g8Q Ra6 Bd6 a3 Kf2 a2 Nd8 Nc6 Qh7 Ra5 Ne1 Bh6 f8Q Qe8 Nd4+ Ka4 f7 Rg8 Ra8 Rg3 b8N Re3 Rc1 a1B Ra6 Bb2 Nd7 Bc3 Be5 Qe6 Qd6 Qe8 Rf1 h1Q f8N Qh2 Ng6 Qh1 Qf3 Qh2 Bg3 Qh1 Qff4 h2 Bh3 Qd5 Rb1 Qh5 Rb5 Qg4 Rh5 Qg5 Rh4 Qh5 Kg2 Bg5 Rf3 Bh6 Nec2 e1B Kf1 Bf2 Ne1 Re5 Bg2 Be3 Qff6 Beg5 Qf4 Be7 Kf2 Re4 Re3 Re6 Rh3 Re5 Re4 Re6 Qf3 Re5 Reh4 Re3 Qff4 Rf3+
1Q1q2Nn/2N1b1qN/2bpQ2R/1n1R1pQR/3PB2Q/1k2KQ2/3b3p/2Bb2r1 w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 h4 g5 hxg5 Ke7 a4 Ke8 b6 Ke7 b5 Ra6 b7 Rf6 b6 Ke8 Nh3 Rf5 Ng1 Rb5 axb5 a4 Kf2 Ke7 d4 Ke6 e4 c5 g4 h5 e5 Kd5 g6 f5 e6 h4 g7 f3 g5 a3 g6 d6 e7 a2 e8Q c4 Nh3 c3 Na3 c2 Bd3 Rh5 Ng5 h3 Nh7 Rh4 Ke3 Nh6 g8N f2 g7 Nc6 b8Q f1B b7 Be7 b6 Be2 Nb5 Rg4 Be4+ Kc4 Nc7 Nf7 Qf1 Rg3+ Qf3 Bd7 Qc8 Rg4 b8R Kb3 b7 Nh8 Qh5 Na7 Qh4 Nb5 Ra8 Bc6 b8Q Rg6 Ra5 Bd1 Qd7 Rg1 Qe6+ Kc3 Rb1 a1Q Rh2 Qa2 Rb2 Qd5 Rb1 Qe5 Rh1 Na3 Rd5 Nb5 Rb3+ Kc4 Rd3 Kb4 Rd2 Kc3 Rg2 Kb3 Rg5 Qg3 Rh5 Qg4 Nh6 Qg6 g8Q Qf7 Qgg5 Qg7 Bd2 c1B Ng8 Bb2 Rh6 Bc3 Bc1 Rf1 Rg1 h2 Rg3 Rg1 Rh3 Qd7 Qhg4 Qc8 R3h5 Qd8 Q4h4 Bd2+
R5q1/p1Q1Kr1k/1R2BR1r/PBN5/pnRrR2Q/N2p2qb/Q4n1B/2r5 w - - 0 1 illegal: No proof kernel
3Qrk2/pn6/1p1KB3/3QBNbb/1R4B1/1b3pN1/P1R2qbq/Q1B2NBn w - - 0 1 legal: proof: e4 d5 exd5 g5 f4 gxf4 b4 c5 bxc5 b6 h4 Qc7 g4 Na6 h5 Qd8 g5 Rb8 Na3 Rb7 Nb1 Rd7 Qf3 Rd6 Qd1 Rg6 hxg6 Qd6 Rh4 Qd7 Rh1 Qd8 Ke2 e5 Kf3 h5 Ke4 f6 d4 h4 c4 h3 d6 f3 Kd5 f2 g7 f5 g6 h2 d7+ Ke7 c6 e4 c7 f4 c5 e3 c6 e2 Bh3 e1Q Bg4 f1B Ne2 f3 Ng3 Rh4 Nd2 Rh3 Rb1 Qe8 Rb4 Bg2 Ndf1 Nh6 g8B Qd2 g7 Rh4 B8e6 Bh3 g8Q Qg6 d8B+ Ke8 Be7 Qg7 Kd6 Qf2 d5 Qgb2 Qd4 Qbe2 Qa1 Nc5 Rg1 h1B Rg2 Ba6 c8N Bc4 c7 Bb3 Qg5 Bg7 Bf6 Bh8 Ne7 Kf8 Be5 Bf6 Nef5 Qc2 Rh2 B1g2 c8Q+ Bd8 Qd7 Rh5 Qh4 Rg5 Qh5 Rg8 Bd4 Bg5 Bde3 Qfd2 Bg1 Qf2 Qc7 Rg7 Qd7 Re7 Qd8+ Re8 Kc7 Qd4 d6 Qdf2 d7 Qb2 Kd6 Qh8 Qc8 Qh7 d8B Nb7+ Kc6 Qh8 Bc7 Qhb2 Qd8 Qbd2 Nh4 Nf5 Be5 Qb2 Qh7 Qbd2 Qhd7 Qb2 Qd5 Qbd2 Ne4 Ng3 Nf5 Nh1 Neg3 Qb2 Bh5 Bg4 Kd7 Nc5+ Kd6 Nb7+ Kc7 Qfe2 Bc8 B2h3 Be6 Qe3 Rd2 Qe2 Kc6 Qh2 Rf2 Qd4 Rc2 Qdf2 Kc7 Na5 Kd6 Bg2 N5e3 Bf5 Bg4 Bg6 Nef5 Nb7+ Kc6 Bh5 Kc7 Nc5 Kd6 Nb7+
6N1/n1Rnbb2/R1Q4R/r1p3q1/RQQ1Bk2/2KPppR1/1NB1bp2/4Br2 w - - 0 1 illegal: No proof kernel
5b2/rKBN1R2/PBrpp1Bk/Rn1pQ3/np6/4N3/qb1Q3N/1N2Qb1N w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 exf5 a4 gxh5 c6 d5 cxd5 b3 Qb6 bxa4 Qc7 a5 Qd8 Ke2 Kf7 Kf3 g5 h4 Kg7 c4 Qb6 a4 Rh7 a6 Qc6 a5 Qa4 a7 Nf6 a6 Qa3+ Bd3 Ne8 h6+ Kh8 f6 Nd6 c5 Rf7 h5 Ne8 c6 Qb3 h7 Nc7 Qd2 Qb4 Bg6 Qc5 Ra5 Rg7 f7 Nb5 c7 g4+ Kf4 g3 Ke5 b6 f4 g2 f5 e6 f6 Rg8 Nf3 g1B Nh2 Bg7 f8Q Bh6 f7 Bge3 Rf1 Qc2 Qfb4 Kg7 f8N Qc4 Rf7+ Kh8 Ba3 Bb7 c8N Nc3 Kd6 b5 Ne7 Qd3 Kc7 Beg5 Nf5 Qc2 Ng3 Nc6 Nh1 Qa2 Qe1 Na4 Qbd2 Bg7 Bc5 b4 Bb6 d6 Nd7 Rab8 a8N Nd4 Rf2 Bc8 Rf7 Nb5+ Kc6 Bf4 Bc7 Bb2 Nab6 Ra8 Nc4 Bh6 Ne3 Bf8 Rf6 Kg7 h8B+ Kh6 Rf7 Be7 Bd4 Bf8 Bdb6 Rh8 Nf6 Bd7+ Kb7 Be8 Nd7 Rc8 Bb8 Rc6 B8c7 Kg5 h6 Rg8 h7 Kh6 Bh5 Rh8 Rf4 Bg6 Rf7 Bd3 Bg6 Bf1 Rf6 Bg7 Rf7 Ra8 h8Q+ Kg5 Bd4 Bf8 Qe5+ Kh6 Bdb6 Ra7+
1n1Rr3/B1RRBrbN/Pqp3BB/1Qp5/1Qb2K2/Np1p4/7n/3QBb1k w - - 0 1 illegal: Other
k3N3/1q4p1/1Kb5/1Rn1Qpbp/NB1P3B/2rnR2p/R1BQr2r/1Q1Q1Q2 w - - 0 1 illegal: Other
B1k3NN/2N1PQr1/p4p1B/2b1NbqR/Kn1pQ2p/1Rn1n1B1/1rQ4N/8 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 d5 g4 Kd7 e4 h5 b4 f6 c4 a6 Kc2 d3+ Kb3 d2 c5 d4 c6+ Kc7 g6 Be6+ Ka4 Qd7 b6+ Kd8 b7 Ra7 g5 Rh6 b5 Ba3 g7 Kc7 b6+ Kd8 g6 Qd5 c7+ Kd7 c8N Bf7 e6+ Kd8 e7+ Kd7 e8N Be6 e5 Ne7 g8Q Bc5 g7 Nbc6 b8Q Qe4 b7 Bc4 e6+ Kd8 Nf3 Qf5 Ne5 Rg6 Qf7 Be2 g8N Ba3 Ncd6+ Nc8 Bg2 Bd3 Nc7 Bc4 Qa8 Bf1 b8B Qg5 Qc2 d1N Nd2 Ne3 Ndf3 Rg7 Nh2 Bd3 Rb1 Nb4 Qe4 Rb7 Rb3 Ne7 Bd2 N7d5 Bc1 Nc4 Bf4 Nce3 Bf3 Qg6 Bh6 Qg5 Qh4 Qg3 Ng6 Bf5 e7+ Kd7 Nc4 Qe5 Nf1 Kc8 Rb2 Nc6 Ne6 Qg3 Nh8 Qg5 Bg3 Ng2 Nc7 Rb8 Ne5 Nge3 Rh3 Rb3 Nh2 Bc5 Bg2 Ncb4 Be4 Nf4 Ba8 Nfd5 Qf4 Bh7 Qfe4 Bf5 Ra2 Rb2 Ra3 Nf4 Rb3 Ne2 Rh4 Qf4 Rg4 h4 Rg5 Qg4 Rh5 Qg6 Bgf4 Qg5 Bg3 Nc3+
Q1R1Qn2/1p3bp1/bp6/kq2RrK1/4B1NB/5N2/Bp1bQr1P/nN1B2B1 w - - 0 1 illegal: Other
1brR1BNr/1k1q2pR/Nn3Q2/4p3/1p1Q3b/r2R1R1N/K1b1BQPp/R7 w - - 0 1 illegal: No proof kernel
NB3b2/rBqN2N1/2bn3B/2p2r2/1pR3QK/3pbpQ1/2RPq1N1/2RN2k1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 b4 Qb3 Nc6 Qd1 Nd4 b3 Nb5 cxb5 a4 Bb2 axb3 Ba3 Qg5 Bc1 Qd8 Kf2 Ke7 Kg3 Ke6 h4 Kd5 a4 Kd4 e4 c5 a5 f5 e6 g5 b6 d5 b7 b2 b8B g4 h6 Nf6 e7 Bd7 e8N Qc7+ e5 Qc6 h7 Ng8 h5 f4+ Kh4 g3 a6 g2 a7 Qd6 h6 Ke4 e6 d4 e7 d3 Ng7 Qd5 e8N Qf7 Nf6+ Kd4 Nf3+ Kc4 Nc3 g1B Ra2 b1Q Rc2 Qd5 Bg2 Qc6 Bb2 Be8 Ne1 Kd4 Qg4 Be3 Nd7 Qc7 Bb7 Nf6 Ng2 Ne4 Rhc1 Nd6 Ba1 Rg8 h8R Qa2 h7 Qe6 Bc8 Qe5 Nd1+ Ke4 Ba6 Qe6 Bf6 Qe7 Bg5 Qe6 Bh6 Qe7+ Qg5 Kf3 Bb7+ Qe4 Qe5 Ke2 Qe6 Kf1 Qg4 f3 Nh5 Rg6 Ng7 Kg1 Rg8 Nb5 h8Q Rf6 Qh7 Nd6 Qg6 Rf5 Qg5 Bf4 Qg3 Qe2 Q5g4 Be3 Rh8 Rf6 Rg8 Be7 Rf8 Rf5+ Rf6 Bf8 Rf7 Re5 Rf4 Rg5 Rfc4 Rf5 Nf6 Ba4 Nd7 Bc6 Ba6 Qa5 Bc7 Rc8 Bb8 Rc7 a8N Ra7 Bb7 Qc7
1KbR2rn/2pBQR2/p1Nqq3/2P3R1/r3r2Q/B4pQN/k2N1p1Q/n2Q4 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 b4 g5 b3 g6 Bd6 axb3 Ne7 b4 Ng8 b5 Bc5 Rh3 Be7 Rh1 Bg5 hxg5 Ke7 Ra4 Kf8 Ra1 Ke8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 c4 d6 b4 f3 g7 f2 b6 h4 g6 f6 c5 h3 b7 a6 b5 h2 b6 Rh6 Nd2 Qe7 Nh3 Ra7 Ba3 Qd8 Rg1 h1R Rg5 Ne7 g8Q+ Kd7 e6+ Kc6 g7 Kb5 Qh8 Rg6 g8Q Qe8 Qh4 Nbc6 b8R Ra8 b7 Nd4 e3+ Ka5 Bb5 Nc2 Bd7 Re1 Qgh8 Qf7 Qg3 Rg7 Qhh4 Ng6 Kd5 f5 Kc6 d5 e4 Ka4 e7 d4 e8Q f4 e5 Nh8 e6 Re4 e7 Qg8 Qeh5 f3 e8Q d3 Qe7 Qa2 Rf5 Rgg4 Rf7 Qb3 Rc1 Na1 Qh6 Rb4 Rc4 Re4 Rd4 Rc4 Rd5 Rb4 Rg5 Rbd4 Bb2 Kb4 Qhd6 Qe6 Bc1 Kc3 Ba3 Ra4 Qh2 Qf5 Qdg3 Qg4 Bb4+ Kb2 Ba3+ Ka2 Be8 Bf5 Rd8 Be6 b8N Bc8 Nb1 d2 Bd7 Rac4 Qe1 d1Q Nd2 Ra4 Qeg1 Qb3 Qd1 Qf4 Be8 Bg4 Bd7 Qe6+ Kb7 Qfd6 Nc6 Qc4 Be8 Rb8+ Ka7 Bc8 Bd7 Qce6 Qdg1 Rbb4 Qd1 Rbc4 Kb8 Rg4 Rh5 Rg8 Rg5 Re4
2NN3b/2r4k/1R1qQ2p/3R1p1N/BNp1Qp1B/3q1NnP/nK1R2b1/2nQ4 w - - 0 1 legal: proof: f4 d5 a4 b5 axb5 a5 c4 f5 cxd5 Ra7 g4 Ra6 g5 Rf6 gxf6 e5 Ra2 exf4 Ra3 Nc6 Ra1 Nb8 b4 Kf7 d4 Kg6 Kd2 c5 Kc3 a4 e4 a3 f7 h6 b6 a2 e5 Nd7 b7 Bd6 b8Q Qa5 f8N+ Kf7 h3 g5 e6+ Kg7 e7 g4 e8N+ Kf7 Bd2 g3 Qb7 g2 Be1 Qa8 b5 Be5 d6 Qa7 b6 Qa6 Na3 Qc4+ Kb2 Rh7 Qe4 Qd3 b7 Ne7 b8Q Kg8 Rh2 Nf6 d7 Qd2+ Nc2 Kh8 d8R Neg8 Ng7 Ne7 Nh5 Kg8 Bh4 Bb7 Qc8 Ned5 Bb5 c4 Ba4 Nb4 Rd5 Rc7 Nd7+ Kh7 Nf3 g1Q Rb1 a1N Nb6 Qge3 Qe6 Na2 Nc8 Nb3 Rg2 Qb4 Rd2 Qd6 Nb4 Qd3 Rc5 Nc3 d5 Nc1 Rb5 Qd8 d6 N3a2+ Nd4 Qf8 d7 Qd6 d8N Ba8 Rd5 Bc6 Qef3 Ne4 Qfh1 Ng3 Qe4 Nc3 Nf3 Bh8 Ka1 Bb7 Kb2 N3a2+ Q4e5 Qe7 Ng1 Qe2 Ra5 Bg7 Nd3 Ba8 Kc2 Qg4 Rb6 Bc6 Nb4 Qd6 Kb2 Bg2 Rad5 Qe2 Nf3 Qd3 Qd4 Bh8 Qde5 Rg7 Qe4 Rc7+
1N1n3Q/3p2n1/pNr3RQ/q4BBN/bk3rpB/1q1K1pn1/PN2Q3/6NR w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 e4 g6 f4 Qc7 e6 Bd6 e5 Kd8 f5 Be7 f6 Qa5+ Nc3 Kc7 fxe7 Qb6 Nb1 Kc6 Ke2 Qc7 Ke1 Qd8 Ke2 Kb5 e8Q f5 c4+ Kb4 h4 b5 h5 a6 h6 g3 h7 f4 e7 f3+ Kd3 g5 c6 g2 e6 Ka5 c5 b4 c7 b3 c6 b2 Qe2 Bb7 c8N Ra7 c7 Bd5 Nb6 Nc6 c8N Rc7 Nd2 b1N Na7 Kb4 Ndc4 Nf6 Qf8 Rg8 e8Q+ Ne7 h8B Bc6 Nb2 Nh5 Bf6 Ba4 Qh6 Nc6 e7 Nd2 Rb1 g4 Bh4 Ne4 Bcg5 Rg7 Qeh8 Rf7 e8N Neg3 Nf6 Ng7 Nh5 Rf4 Rd1 Qb8 Rb1 Nd8 Nc6+ Kc5 Re1 Qb7 Nb8 Kb4 Rc1 Rc6 Rc5 Qc7 Re5 Qb7 Re6 Qc7 Nh3 g1Q Rg6 Qc5 Ng1 Qa5 Qe5 Rfc4 Be2 Qb5 Bd1 Qb7 Qe2 Qa5 Bb3 Rf4 Be6 Qc7 Bf5 Qd6+ Ke3 Qe6+ Kd3 Qb3+
BK1Q1R2/B5Qb/1n1pp1Q1/qR2ppN1/2k1b3/2Nb4/1B2PrBb/r1BR4 w - - 0 1 illegal: Other
R4b1n/Q1qB1PR1/2Nn3N/1rR1bN2/b1B1N1N1/7K/n4n1N/rbN4k w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Qd7 cxd5 Qd8 Ba3 Rb7 axb5 Ra7 b6 Ra6 b5 Ra8 Bb4 axb4 f4 Kf7 Kf2 h5 Kg3 c5 d4 e5 d6 h4+ Kh3 c4 g4 b3 g6+ Kf6 b7 b2 b6 c3 d5 e4 d7 e3 g7 c2 d6 c1B g5+ Kf7 f6 Ke6 g6 Kf5 f7 Ke4 f5 e2 f6 e1N Qa4+ Ke3 Nf3 Kf2 Nbd2 b1B Nh2 Ng2 Nb3 Bh6 Nc1 Bg5 Rg1 Ra5 Bb5 Nc6 b8N Ne3 b7 Qe7 Na6 Rh7 b8R Ne5 Nc5 Ba6 d8N Nf1 d7 Nd3 Nc6 Nh6 d8N Bf4 g8N Ng3 g7 Ne4 Nd4 Nb4 Rc8 Na2 N8c6 Qc7 Nf5 Be5 Rg3 Nd6 Ne4+ Ke1 Bc4 Rb5 Qa3 Bb7 Qa7 Ba6 Ra8 Bc8 Be6 Bd7 Rc3 Rh8 Rc5 Be8 Bd7 Rh7 Nf3+ Kf1 Nh2+ Kg1 Rc4+ Kh1 Rc5 Be7 f8N Nhf7 Ngh6 Nh8 Ng6 Bf8 g8B Rg7 Bc4 Re7 Kg4 h3 f7 Re6 Nf3 h2 Kh3 Beg7 Nge5 Re7 Neg4 Be5 Na5 Re6 Nc6 Rg6 Ngf6 Rg1 Nfg4 Qb6 Ngf6 Bc2 Ne2 Ra5 Ncd4 Qc7 Bc8 Bea4 Bd7 Rb5 Nc6 Re1 Rb1 Bd3 Rb2 Ra1 Nc1 Bb1 Rg2 Bg7 Rg5 Bf8 Kg4 Kg2 Rg7 h1N Nh2 Nf2+ Kh4+ Kh1 Nfg4 Nd3 Kh3 Nf2+
4Rr2/r5RK/q1BB1bn1/3r3q/1NBQ2RN/r1q4P/BkB1B1B1/r5n1 w - - 0 1 legal: proof: g4 b5 d4 c5 f4 h5 a4 e5 fxe5 a5 dxc5 Bb7 b3 Bc6 axb5 hxg4 b6 a4 Nc3 a3 Nb1 Ba4 bxa4 Ra5 Kd2 Ra6 Ke1 Ra8 Kf2 Ke7 Ke3 Ke6 Ke4 g5 c4 d6 b7 a2 h3 g3 a5 g4 a6 f6 c6 g2 c5 g3 a7 Qc7 Ba3 Qf7 c7 Rh5 c8B+ Nd7 b8R Nh6 c6 Be7 c7 Rf5 Ba6 Ng8 c8B Qh5 Nf3 g1Q Nh4 g2 Nc3 Qc5 Qd4 g1R Nd5 Rg3 Rg1 Qc3 Bc4 Bd8 e3 Ne7 Bfe2 Ng6 Raf1 a1R Rf4 Be7 Rg4 Rff1 Bc5 Rgf3 R1g3 Ra3 B8a6 Rfa1 Re8 Rf2 Bd1 Rfa2 Nb4+ d5+ Kf3 f5 Bd6 f4 Bc2 Rc8 a8B Rb8 Bab5 Ra7 Bb7 R2a3 Ba2 Rd8 Be2 Rc8 Bba6 Rca8 B6c4 Rd8 Kf2 f3 e4 Rda8 Rg2 Rc8 Kg3 f2+ Bf3 f1Q Rg1 Nh8 Kf4 Qfd3 Bg2 Rb8 Reg8 Bf6 Re1 Rf8 R8g7 Nc5 Re3 Nb3 Re2 Nd2 Re3 Nf3 Re1 Qf7 Re2 Kd7 Kf5 Ng6 Re3 Ng1 e6+ Kc8 e7 Kb7 e8B Qe2 Qd1 Kb6 e5 Ka5 e6 d4 e7 d3 Bec6 d2 e8B Qb7 Bef7 Qa6 Re8 Qef3+ Bf4 Qd5+ Be5 Qc5 Be2 Qcb5 Bfc4 Qd5 Qc1 d1R Qe3 Qc5 Qf2 Rd5 Qd4 Qcb5 Bce4 Ka4 Bc2+ Rb3 Ke4 Ka3 Bd6 Ne7 Kf4 Kb2 Ke4 Ra3 Kf4 Be5+ Kg5 Bf6+ Kh6 Ng6 Kh7 Qbb7 Rb8 Qf7 Rc8 Qe8 Ra8 Qe5 Re8 Qh5#
1rB2brR/RQ1P3r/r2R1N1k/rn2K1RN/2b5/1R1B1n2/2R2n2/1RB3b1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ba6 g5 Bc8 h5 Qd6 Ne2 Ng8 Ng1 Qg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 Kf2 a5 Kf3 c5 Ke4 e5 d4 h5 b4 f3 d6 h4 b6 h3 g7 Kf7 b7 a4 d5 f2 g6+ Kf6 b5 c4 b6 a3 d7 a2 d8R c3 d6 c2 Bd3 f1N Nc3 h2 Nge2 Nc6 b8R Ra7 b7 Ra6 Nf4 Kg5 f6 Nd4 f7 Nh6 g8B Be6 g7 Bc4 Ncd5 Ng4 Qf3 Nb5 Nf6 Kh6 N4h5+ Nd2+ Kf5 e4 Rbc8 e3 b8R e2 Qb7 Nf2 Ke5 e1B Rf1 Be7 f8R h1R Be6 Rg8 Rc7 Ra5 Bc8 Rh3 Rb1 a1R Rg1 Rh1 Rf7 Bf8 Rg5 Ra6 Rc6 R1a5 Rfc7 Rh2 d7 Rh4 Rd6 Rh3 Ra8 Rh2 Ra7 Nf3+ Kf5 Rh4 Re8 Bc3 Re3 Be5 Rcc6 Bh2 Rc5 Bg1 Rc7 Rh8 g8R Rg4 Rcc6 Rh7 Rh8 Rg3 Be2 Rg2 Reb3 Rg4 Bd3 Rg2 Bf4 c1R Rc5 Rc2 Bc1 Rb2 Kf4 Bg8 Rc2 Bc4 Re5 Rg8 Rg5 Rb6 Qc6 Rb8 Qb7 Rba2 Kf5 Ra6 Kf4 R2a5 Kf5 Nh4+ Ke5 Nf3+
1r6/1r1PRq1n/Q1BN1B1B/2R1n3/3B2B1/3Bq1rK/N1B1r1r1/1r2Rbk1 w - - 0 1 illegal: No possible last move, all moves rejected
1qQN1R2/3N1NKq/r6N/1k1bn3/N6b/pPr4B/Rn2r1N1/4RNqB w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Ke3 c5 Ke4 e5 h4 a5 d4 c4 d6 c3 b6 Kc6 h5 g4 h6 a4 h7 c2 d5+ Kc5 d7 c1R b7 g3 d6 a3 f6 g2 Kf5 e4 f7 e3 Nf3 g1Q Nfd2 e2 Nc3 e1Q Bh3 Ra6 Nf1 Ra5 Qg4 Qde8 Na4+ Kb5 Ra2 Na6 b8N Be7 f8R Nf6 g8N Qa7 g7 Qc7 Nh6 Qa7 g8B Qc7 Bd5 Bb7 d8N Rc3 d7 Nc5 Ne6 Ra6 d8N Nfd7 Nf4 Nd3 Ng2 N7e5 Nd7 Bh4 Bf3 Rg8 h8N Nb2 Nh8f7 Bd5 Rg1 Qe7 Rh1 Qb8 Qc4+ Ka5 Qc8 Kb5 Rg1 Rg4 Rh1 Re4 Rg1 Nc6 Kg6 Ne5+ Kg7 Qc1 Nf4 Re1 Bh1 Re2 Ng2 Qa1 Nfe3 Qb1 Re1 Qc5 Nf1 Qg1 Kh8 Qe4 Kg7 Qh7+
q5B1/R2Nk1B1/1N1pn3/2bQ1b2/2R1K3/bb2N1rr/N1n2PNn/1NR4N w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Ke2 g5 Kf3 e5 h4 g4+ Ke4 d6 c4 d3 f6 g3 f7+ Kd7 a6 g2 b6 d2 b7 Ra7 c5 Ra8 h6 Qg5 c6+ Ke6 h7 Qf6 h5 Qd8 a7 Nd7 b8N Be7 f8N+ Kf7 h6 Ba6 c7 Be2 c8N Qe8 Na6 Bd8 Bb2 Bb6 Ne7 Bg4 Nf5 Ne7 Ne2 g1N Neg3 Nf3 Bc4+ Nd5 Ne3 Ke7 Nb4 Bc5 Na2 Nb4 Bg8 Nh2 Qb3 d1B Qd5 Rd8 a8N Bb3 Rc1 Nc2 Nb6 Ra8 Bc3 Ra3 Nh1 Qa8 Bd4 Nb8 Nfd7 Na6 Bf7 Rg8 h8R Nc7 h7 Ne6 Bb2 Rg6 Rc8 Rh6 h8N Rh3 Bg8 Rg3 Nf7 Rh3 Ng5 Rg3 Nf3 Rh3 Kd3 e4+ Kd2 Rg3 Ne1 Rh3 N1g2 Rg3 Nd1 e3+ Kd3 e2+ Nde3 e1B Ke4 Beb4 Bd4 Ra6 Bg7 Ba3 Rd1 Ra7 Rd4 Rb7 Rc4 Rb8 Rc6 Rf8 Rc7 Rff3 Ra7 Rh3 Nbc3 Rfg3 Rc1 Qb8 Nb1 Qf8 Nh4 Qa8 Nhg2 Bf5+
2b4B/1N3k1N/NPB1N3/p4bK1/Qn3N1n/q2Nr2B/nn1N2q1/5nRR w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Kf2 g5 Ke1 a5 h3 Bh6 h4 Ra6 Qc2 Rf6 Qd1 Rf5 gxf5 g4 Rh2 Qd6 Rh1 Bg5 hxg5 Qd8 Kf2 h5 e4 c5 d4 h4 b4 h3 e5 c4 e6 h2 f6 c3 f7+ Kf8 d6 c2 b6 Qe7 d7 Rh3 d8N Nc6 g6 Qd7 g7+ Ke7 f8N Rh8 b7 Nh6 b8N Ng8 b5 Rh3 b6 Ba6 d5 Qb7 Nd2 Nh6 Nh7 Nb4 Ne2 Nf5 Bb2 c1N Qa4 Nca2 Nc1 Nh4 Nd3 Qc7 g8B Qc3 Nb7 Qa3 Bh8 Rg3 Rg1 h1B Bh3 Bg2 Bf7 Bf1 Be8 Be2 Nd8 Bc8 Bc6 Bd1 Rh1 Bc2 Rag1 Bb1 Nb7 Bc2 Ke1 f2+ Ke2 f1N Na6 Ne3 Kf2 Nd1+ Ke2 Bd7 d6+ Ke8 e7 Kf7 e8N Nb2 Kf2 f3 Ke3 f2+ Kf4 f1N Nec7 Re3 Kg5 g3 Ne6 g2 Nef4 Bc8 d7 Bb1 Nc1 Bf5 d8N+ Kg8 Nde6 Kf7 Rh2 Qc3 Ncd3 Qa3 Rgh1 g1Q+ Rg2 Qh2 Rgg1 Qg2+
R1R3N1/B1q3K1/1R1Rp3/R4pn1/RnBr3P/2qB1rbR/1N1k4/3n1Q1r w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 g5 a4 h5 axb5 g4 f3 g3 e5 Bg4 fxg4 h4 e6 h3 gxh3 Nc6 h4 Nd4 h5 Nxe6 Bh3 Nf4 Bf1 Ne2 d4 Kd7 Kd2 Kd6 Ke3 f5 b4 c5 h4 a5 g5 g2 b6 a4 h6 c4 g6 a3 b7 c3 b8R a2 h7 c2 g7 Ra5 b5 Ra6 b6 Nf6 g8B Ne4 b7 Nf4 Nc3 Nh3 Bd3 Ra7 Na4 Nhf2 Kf4 Ra6 Qf1 Rb6 Nb2 Nd2 Kg5 Nb1 Kg6 Qd7 Ra8 Nd2 b8R Nb3 Nh3 g1R+ Ng5 Ra6 Be3 c1Q Rh3 Ra3 Ra5 Qdc7 Rb6+ Q1c6 Bf7 Nd1 Bf2 Rh1 Ne4+ Kd7+ d6 Qc3 d5 Nd4 Bg8 Ne6 Bf7 Ng5 Nf6+ Kd8 Ng8 Kd7 Ra4 Bg7 Bd4 Be5 Kh6 Bg3 Kg7 Kd8 d7 e6 Bh5 Rb3 Bhe2 Ra3 Bc4 Rb3 Bed3 Ra3 Nh6 Ke7 d8R Rf8 Rdd6 Rd8 h8R Rb3 Rc1 a1N Rg8 Nc2 Rca1 Rd7 Rc8 Nb4 Ra5 Rd8 R1a4 Ra3 Rbb8 Rb3 Rdb6 Kd7 d6 Ra3 Rba8 Rb3 Rbb8 Kc6+ d7 Ra3 Ng8 Kd6 Bb5 Kd5 Bdc4+ Ke4 Rb6 Qd2 Bc5 Rf3 Bd3+ Kf4 Bbc4 Qc1 Rb7 Qd2 Ba7 Qc1 Rb6 Ke3 Kg6 Qc3 Kh6 Re8 d8R Kd2 Rdd6 Rd8 Rdc6 Rd4 Rd6 Nf7+ Kg7 Ng5+
q1N5/1qr3p1/r3N1Q1/2R3B1/N2qqKR1/1N5N/PpB2N1B/qb3kbN w - - 0 1 illegal: No possible last move, all moves rejected
1N1r4/B1prB1pB/4Q3/3N1bB1/RB3b2/p2B2Pq/1qN2R1K/1qkBr3 w - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 e5 fxe5 b5 axb5 f5 Qa4 f4 Qd1 Nf6 g3 Nc6 h3 Ng4 hxg4 Ne7 Ra4 Nf5 gxf5 Be6 Ra1 Bc8 Kf2 Kf7 Kg2 h5 d4 a5 e4 a4 b4 h4 b6 c3 e6+ Kf6 d5 Ke5 b5 c2 e7 h3+ Kh2 f3 e8B f2 b7 Qf6 b8B Qc6 b6 Bc5 b7 Ba7 f6 Bd4 d6 Qd5 d7 Bb2 d8B Bd7 f7 Bd4 f8B Bb5 Bb4 Qd7 Bg6 Ba6 Qe2 Bd3 Bh7 Qf5 Ba7 Qg4 b8N Be3 Na3 Bf4 Bde7 Rd8 Bcd2 c1R Nc2 Rd7 Qe3 Qh4 Ne2 Qf6 Nc3 Re1 Nd5 a3 Ra2 Qb6 Be2 f1Q Bd1 Qd4 Qe2 Qb2 Qe3 Ke6 e5 Bg6 Bc1 Kf5 e6 Qd3 Qb6 Ke4 Bcd2 Bf5 Be3 Bd6 B3g5 Bf4 Rf1 Qdb3 Rf2 Qb1 Rb2 Qc3 Rb3 Qca1 Rc3 Qab2 Rc5 Kd3 Ra5 Kc4 Ra4 Kb3 Bef6 Ka2 e7 Kb3 e8B Ka2 Na6 Rad8 Nb8 Kb3 Bfe7 Ka2 Rf1 Kb3 Qe6 Ka2 Kh1 h2 Beh5 Kb3 Bhe2 Ka2 Bd3 Kb3 Kg2 h1Q+ Kf2 Qh3 Kg1 Q2a1 Na6 Kb2 Nb8 Re3 Rf2 Kc1 Qe4 Qab2 Qe6 Qg4 Kh1 Re1+ Kh2 Qh3#
n1b3KN/R4B2/qb3QnB/3qR3/RRR3rr/2Nq1r1q/P1Rb4/kB1R4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kb6 f4 Ka5 g4 b5 d6 c5 d7 b3 Ke6 Ka4 Kf7 e5 g6 e4 g5 h4 f6 c4 f5 h3 g7 c3 d5 h2 g6 e3 d6 c2 Bd3 b2 Ne2 b4 Re1 h1Q Nf4 b3 Nc3+ Ka3 Rb1 Nc6 Qf3 Qb6 d8R e2 d7 Nge7 g8R Rh6 g7 Rh5 Ng6 Nb4 Nh8 Na6 Bh6 c1Q Rd1 e1B Re8 Qf1 d8R Rh4 Rd7 Qh3 Ra7 Ng6 Re5 Bc5 Rf8 Bd4 Kg8 Qg5 f7 Bd2 f6 Bc5 Rbc1 b1R Rc2 b2 Rd8 Qb5 f8R Bb6 f7 Qa4 Rfe8 Nc7 f8R Qa6 Qf6 Qgf5 Re4 Qd5+ R8e6 Rc1 Rc4 b1Q Rf7 Rb8 Re5 Na8 Rdd7 Qbb5 Rdb7 Rb1 Bf5 Rb3 Be4 Qdd3 Rfe7 Qbd5+ R7e6 Bg1 Rbb4 Bb6 Bf5 Rb7 Ree4 Rf7 R6e5 Rd7+ Kh7 Rd8 g8B Re8 Bf7 Rg8 Rcc1 Kb2 Red4 Qe2 Bb1 Ka1 Rc2 Qed3 Rf4 Ne7+ Rfe4 Rgg4 Ra4 Ng6 Kg8 Qdf3 Rcb4 Qff1 Rec4 Ra3 Nb5 Rf3 Nc3 Qfd3
1b2B1q1/1NBR1r1b/1q6/NnBP1B1r/4R1nQ/2Bq4/3r2kr/b1BBKR2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 b4 a5 g4 c5 b6 h5 b7 f5 e5+ Kc7 b5 c4 b6+ Kd7 g6 f3 g5 f4 d6 Kc6 e6 Kd5 g7 Ke4 e7 c3 e8B c2 g6 a4 d7 h4 d5 a3 Nh3 a2 Be2 Na6 b8B Rh5 b7 Bd6 Na3 Nc7 Nc4 Nh6 g8R Nb5 g7 Ng4 Na5 Qb6 d8B Bf5 Be7 Bh7 Bc7 Be5 Rb1 a1B b8B Bd6 Rf1 f2+ Kd2 f3 Ng5+ Kf4 Ne6+ Kg3 Qe1 h3 Rb4 h2 Nc5 h1R Ncb7 R1h2 Re4 Kg2 Bd1 Bg3 Bc5 Ra7 Bb2 c1R Bc3 Rb1 Rh8 Rb4 g8B Rb2+ Bc2 Bd6 Be6 Be5 Bf5 Bg3 Rh1 f1Q Rg8 f2 Rg7 Qg1 Rd7 f1Q Bf4 Bg8 Bbc7 Bh7 Kd1 Qc4 Bc1 Qb3 Ke2 Bd6 Qh4 Be5 Bd8 Bb8 Bc7 Ra2 B3e5 Qg3 Bc3 Qd4 Re1 Qg7 Kd2 Qg8 Rf1 Qd3+ Ke1 Rb2 Bd1 Rf2 Nc4 Raa2 Nca5 Rad2 Bfg6 Rf8 Bf5 Rf7
1nn3bb/BNp2R1R/1bQ4q/3P2NK/2br2B1/kbRn1R1B/6RR/r3R3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 b4+ Kd4 f4 e5 b6 a5 b7 e4 d6 h3 d7 e3 b5 Kc5 d4+ Kb4 f6 h2 f5 h6 f7 a4 f6 a3 d5 e2 b6 e1N Nh3 a2 Be3 Rh7 Na3 Ra4 Qc2 Nc6 b8R Rh8 b7 Qe7 Nb5 Bg7 f8R Rh7 f7 Nd3 Ba7 Qe3 Ng5 Nge7 Nd6 Bd4 Re1 a1B Kh5 Bb6 d8R Bh8 g4 Ra1 Rd7 Ka3 Bh3 Qc1 Ra8 Nb8 Qc6 Rg7 Rhg1 h1B Rg2 Qf4 Rh2 Bf3 Rg8 Bd1 f8R Rh7 Rf7 Bb3 Rg6 Rg7 Rgf6 Qd2 Rf3 Rg6 Rh7 Re6 Rg2 Re4 Rh2 Rd4 Rhf7 Na6 b8R Bb7 Rbf8 Nb8 Rg8 Ba6 Nb7 Nc8 Rh7 Bac4 Rdf7 Nb4 Rc3 Nd3 Rgf8 Qc1 Rf3 Qf4 Rff7 Qf6 Ne4 Qf4 g5 Qd2 g6 Qc1 Kh4 h5 g7 Qd2 g8B Qh6 Kg3 h4+ Kg4 Qd2 Kh5 Qc1 Be6 h3 Ng5 Qe3 Rg2 h2 Bh3 h1B R7f6 Nb4 Bge6 Nd3 Rff7 Qd2 Beg4 Qf4 Rfg3 Qc1 Rh2 Be4 Rgg1 Bf5 Rgg2 Be6 Rf3 Bg8 Rff7 Nd7 Rb8 Ne7 Re8 Nb8 Ref8 Nc8 Rf3 Qe3 R8f4 Qe6 Rff7 Qh6+
q6n/bR3K2/r1N4R/2q5/2N1n1k1/BBPRbb1R/Rp3qBr/RQ1R1q2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 Kf6 Kf4 b5 a4 d5 h4 d4 a5 d3 a6 g6 c6 d2 a7 e6 h6 b3 c3 b4 h7 b2 c7 b3 h5 Qd3 h6 Ba3 Ne2 Nc6 Nd4 Qb5 Bg2 Bc5 Na3 b1Q Nc4 Qa2 Ba3 b2 Qb1 Nce7 Rd1 Bb7 c8B Bf3 Nc6 Bb6 Bd7 Bd4 Be8 Qc5 Bf7 g5+ Kg3 g4 Kh4 e5 Kh5 Rc8 a8R e4 Rb8 e3 Rb7 e2 Bd5 Be4 f4 e1Q Bf7 g3 Be6 Ng6 Bf7 N8e7 Bd5 Rhd8 h8R Ra8 h7 Be3 Be6 Rd4 Rd8 Qg1 h8R Ra6 Rh6 Qf2 Bf7 Rd6 Rdd7 Re6 Rd3 Nc8 Bg8 Nd6 Bf7 Bd5 Bg8 Ne4 Bf7 Kg7 f6+ Kf8 f5 Re7 Bg8 Rh7 f7 Kg7 Bh1 Kf6 f8R+ Rf7 Bf3 g2 Ra8 g1B Bg2 Rh7 Bf7 Bd4 Rh3 Be3 Rd8 Be6 Rd3 Bd5 Bb4 Qaa5 Ba3 Qd8 Bg8 Qa8 Be6 Bh2 Bg8 Bb8 Bf7 Ba7 Ra2 Kg7 f6+ Kf8 Re1 d1Q+ Rf3 Nd2 N4e5 Ra5 Qc1 Qg1 Qc2 Be4 Bb3 Nh4 f7 Kg7 Rf1 Qe2 Rfa1 Ra6 Qb1 Qee1 Rf1 Qef2 Rd1 Bd5 Nc4 Qgf1 Qc2 Rh8 Rh7+ Kf6 f8R+ Ke6 Rc8 Kf5 Qb1 Kf4 Kh6 Ng6 Kg7 Bf3 Kf7 Ne4 Rh1 Rh3 Rh8 Kg4 Rh7 Rg3 R1h5 Rh3 R7h6 Rh2 Rh3 Nh8+
2rqn1R1/4Bbb1/1k1N2q1/b1R4Q/pK1NN3/2B1B2P/B1B3nB/1brq3B w - - 0 1 illegal: No possible last move
2BB2rq/B1B1Bb1K/2RQ1P2/B2q2NN/1b1bN1n1/3q1q2/2p3n1/BRr1k3 w - - 0 1 illegal: No possible last move
kB1b4/3R1b1B/2rPN1Br/KnN2Bp1/R4nq1/1qB3B1/q2R1BQ1/1bb5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 e4 c5 b4 Kc7 d4 Kb7 Kd2 f5 Kc3 g5 d6 a5 e6 f4 e7 a4 e8B a3 d5 f3 b6 a2 h5 f2 b5 c4 Kb4 c3 e5 c2 e6 g3 h6 g2 h7 Qf6 e7 Bg7 d7 Bh6 d8R Bf8 Qe2 Be6 Nh3 g1B Bg6 Qe5 Rh2 Qc7 Bf5 Qd7 Nf4 Bf7 Ne6 Nf6 Nc3 Ra5 Na4 Ra6 Be3 c1Q Nac5+ Ka8 e8B Qd1 B1h3 f1B Bf2 Qb7 Rd7 Be7 Bg6 Bd8 Bhf5 Nh5 Qb2 Rg8 h8B Nf4 Bh7 Bd3 Bc3 Rg6 Qe2 Be4 Qf1 Bb1 Qg2 Bg8 Bf7 Rh6 Bh5 Qc8 Bh5g6 Bf7 b7+ Ka7 d6 Rc6 Bg3 Qf3 Ka4 Na6 b8B+ Ka8 b6 Be3 Ba7 Nc7 Ka5 Qd5 Qc2 Qd1 Rd2 Nb5 Qe4 Qb3 Qg2 Be4 Rh1 Bb1 Rh4 Nd5 Ra4 a1Q Bb8 Bf4 Bc7 Qaa2 b7+ Ka7 b8B+ Ka8 Bb6 Be3 Re2 Bc1 Rd2 Nf4 Ne4 Qb7 Ba7 Rc7 Bbf2 Qc6 N4c5 Qf3 Bb8 Rc6+ Bc7 Bf6 Bb8 Qg4 Ne4 Be7 N4c5 Bd8+
R4NKR/r1R1R2B/pn5b/1b5k/1nq1q1Rn/B3N1qN/R1P2Q1R/4rn2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 g5 Kg4 e5 f4 d5 h4 d3 b4 d4 h6 d2 Kh5 e4 b6 d3 f6 g4 f5 a6 b7 g3 h7 e3 b5 e2 b6 e1Q Nc3 g2 Nd5 Qc7 Qf3 d1Q Ne3 d2 Ba3 Qc5 Rh2 Ra7 Bd3 Qb5 Ra2 Nc6 b8R Nh6 b7 Nd4 Ra8 Qf2 b8R Qde1 Rb7+ Bd7 Rc7 d1N Nh3 Qg3 Qf2 g1N Be4 Rg8 h8R Qc4 Rh7+ Bg7 Bd3 Ng4 Kg5 Rc8 h5 Nc6 h6 Re8 Be4 Nb4 Kh5 Kf8 Kg6 Nf3 f7 Nc3 Bd3 Ke7 f8R Na4 Rg8 Nb6 f6+ Ke6 f7 Bb5 f8N+ Ke5 Rhh8 Nh4+ Kh7 Re6 Bf5 Kf6 Re8 Re5 Ree7 Qee2 Ng1 Kg5 Nh3+ Kh5 Be4 Bf6 Rg6 Re6 Kg8 Bg7 h7 Bh6 Bd3 Ne5 Rg4 Nef3 Kf7 Qe1 Rhg8 Qh1 h8R Nd2 Bh7 Qhe4 R8g6 Qcd5 Kg8 Nf1 Rgg7 Qb3 Re8 Qbc4 Ra8 Rd6+ Rgf7 Rd1 Re7 Re1 Rc7 Qcc6 Rfe7 Qcc4+
1K3r2/r5B1/p2nr1Br/P3b2b/1RqnQ1BB/1N2BNb1/R1R1BqB1/1k6 w - - 0 1 legal: proof: f4 c5 g4 h5 b4 hxg4 bxc5 e5 fxe5 d5 c4 Qc7 cxd5 Qd8 Kf2 Kd7 Kg3 b5 Kf4 f5 h4 b4 a4 g6 e4 b3 d4 b2 h5 g3 a5 a6 e6+ Ke7 Ke5 f4 c6 g5 h6 g2 c7 g4 h7 f3 d6+ Ke8 e7 Kf7 e8B+ Kg7 d5 g3 d7 f2 d6 Nh6 Nf3 g1B Rh2 g2 Bh5 Ra7 Qa4 Be7 Ra2 Qg8 d8R Bg4 c8B Nf5 d7 Bh4 Be3 Qc4 Nbd2 b1R Nb3 Re1 Be2 f1Q Bb7 Rf8 h8B+ Kh7 Bc6 Nd6 Bg7 Bgf2 Rc8 g1R d8B Rh1 Rc7 Bg1 Rb7 Qf2 Rb4 Bg3+ Bf4 Nc8 Bh4 Nd6 Rg2 B1h2 Bb7 Bf5 Bg4 Bg6 Bd5 Bh5 Ke6 Kg6 e5 Ref1 Be3 Nc6 Rc2 Re1 Ra2 Raa8 Kd7 Nd4 e6 Ra7+ Bb7 Be5 e7 Bhg3 Qc6 Rf6 Kc7 Ref1 Bd7 Re6 e8B+ Kf5 Kb8 Rh2 Qa4 Rhh1 Bbc8 Ke4 Rc2 Rf6 Bh3 Rf8 Bcg4 Re1 Bd1 Kd3 Ra2 Qb2 Be2+ Kc2 Rf2 Kb1 Bg2 Rf5 Bf7 Qbc2 Bg6 Rf8+ Qe8 Rh3 Bd1 Qf5 Rfc2 Qf4 Be2 Qf5 Ng1 Qf2 Nf3 Bef4 Bd2 Rhh1 Bed3 Re3 Bd8 Re4 Qc6 Re6 Qe4 Be5 Be2 Rh3 Be3 Rh1 Bh7 Be8 Be7 Rhh6 Bh4 Rff6 Bhf5 Bh5 Bg6 Rf8+
1N2Rq1B/5Bb1/B1R1bn2/KB2b1np/2Q1p3/qPB1NB2/kB5q/4rr1N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 h5 g4 e5 f4 a5 b6 d5 g6+ Ke7 b7 Kd6 f6 Kc5 b3 Kb4 f5 a4 g7 a3 c5 d3 g5 a2 f7 d4 c6 Rh6 g6 Ra4 f6 Qb6 c7 Ra3 Nc3 Qa5 Nh3 Bd7 c8B Be8 Bb2 Bc5 f8B Qa4 f7 Nc6 b8N Nf6 g8B Bd6 g7 Bd7 Qc2 Nd8 Ba6 Be6 Re1 a1B Nf2 Ra2 Ncd1 Qa3 Bh7 Rg6 g8B Rg1 Be2 Rf1 Bg7 Bf8 Bh8 Bg7 Bc1 Bb2 Ne3 Ra1 Be4 Rb1 B4f3 e4 Rg1 Ra1 Nh1 Rb1 Rg5 Ra1 Re5 Rb1 Kd1 d2 Beb5 Bc3 Ke2 Ba1 Bb2 Rc1 Nd1 d3+ Ke3 Rb1 Kd4 Rc1 Ne3 d1Q Re2 d2 Qc7 Qc2 Qc4+ Ka5 f8B d1Q+ Rd2 Nf7 Bd6 Ng5 Bf7 Qe2 Rd1 Rb1 Rc1 Qf2 Be7 Qce2 Kc3 Qh2 Rc2 Rbe1 Bc5 Qf4 Bd4 Qeh2 Rc1 Bg4 Re8 Be6 Be5 Qf5 Rd1 Qff4 Rd6 Qf5 Bd4 Qfc5 Rc6 Qf8 Be5 Qa4 Kd4 Qg8 Kc5 Qa2 Ba3 Qf8+ Rd6 Bc3 Bb2 Bd4+ Kc6 Qa1 Kb7 Qa2 Rc6 Bc3 Qd3 Kb4 Kb6 Qa4 Bc1 Bb2 Qc4+ Ka3 Bd2 Qab4 Bc1 Qbe7 Ka5 Ka2 Bd4 Qed6 Be5 Bd4 Bb2 Qde7 Bd6 Bc3+ Bb4 Be5 B4c3 Qa3+
B2B4/nbR1bn2/B2B1N2/k1r1QR1p/4P3/2p1r2N/K1bnB3/1qB2nBN w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 e4 f5 b4 a5 d4 h5 Kd2 c5 Kc3 Kc7 Kb2 Kb6 d6 f3 d5 a4 g6 f4 g7 a3+ Ka2 c4 g5 f2 d7 f3 g6 c3 d6 Ra4 Qd4+ Kb7 b6 Be7 b5 Bf6 Be2 f1B Qe5 f2 Nd2 Ra8 Nh3 Nh6 g8B Qe7 d8B Qg7 d7 Rh7 Bgc4 Qe7 g7 Qd6 g8B Be7 Bgd5+ Nc6 Rb1 Bg2 Nf1 Qb8 Ng3 Nf7 Rf1 Rg7 Nh1 Bf3 Bc7 Bg4 d8B Ra5 Bd6 Bf3 Rb4 Rg3 Bcd3 Bfg4 Rc4 Re3 Rc5 Ka8 b7+ Ka7 Rc4 Bf3 b6+ Ka6 Bc5 Na7 Bd6 Rb5 Rc7 Ka5 Bc6 Rc5 Ba6 Qa8 b8N Bb7 Nd7 Qb8 Nf6 Bg4 Bec4 Bd1 Be2 Bc2 Bd5 Bc8 Ba8 Bb7 Rg1 f1N Rg5 Bd3 Rf5 Bb1+ Kb3 a2 Ka3 Bd3 Kb3 a1N+ Ka2 Rd5 Bc5 Nb3 Bd6 Nbd2 Bc5 Bc6 b7 Bc2 Bd4 Rf3 Bg1 Rc5 Nd7 Re3 Nf6 Qc8 b8B Qb7 Rd7+ Qb6 Bd6 Bb7 Rc7 Qb1+
2RQR3/1b4K1/B1RRNb1r/1Rp5/1NP1bpR1/B2B4/1b1krR1q/5nrb w - - 0 1 illegal: No possible last move, all moves rejected
2R5/1k6/rb1rr1p1/B1RbRR2/q1Rb1Q2/N2N1NPb/5b1p/R2RKB1n w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Na6 h5 Nc5 h6 Ne6 Ra6 Ke7 Ra1 Ng7 hxg7 Ke8 e4 Kd7 d4 h5 b4 c5 e5 Kc7 d6+ Kb7 d7 f5 b6 a5 b5 f3 g3 f4 d5 c4 e6 a4 e7 a3 e8N a2 d6 h4 Be3 c3 Qd2 h3 Na3 c2 Nf6 c1B Ne4 h2 Nf2 Nf6 g8R Ng4 Nd3 Qe8 d8R Ra6 d7 Bc5 Rf8 Nf2 Rf5 Rf8 Qb4 Rf6 Re5 Rc6 Bd2 Rd6 Qc4 Re6 Ba5 B1e3 Rd1 a1B Rf5 Qf7 Re8 Bad4 d8R Qd7 Re7 Rd6 Ree5 Qe8 Qa4 Be6 Rc8 Bd5 Rc7+ Kb8 b7 Bb6 Rcc1 Ka7 b8R Re6 Rd8 Kb7 Rc3 Qc6 Qb4 Qc4 Qf8 Qa4 Rdc8 Rd6 R3c4 Re6 Ne2 Rd6 Rg1 Nh1 R8c5 Re6 Nc3 Rd6 Ncb1 Re6 Nd2 f2+ Ke2 Rd6 Nf3 Re6 Bh3 f1B+ Ke1 Be2 Bf1 Rd6 Nd2 Bg4 Nf3 Bh3 Qh6 Bc7 b6 Bd8 Nh4 f3 Qf4 f2+ Ke2 Kb8 b7 Bb6 Nf3 Ka7 b8R Re6 Rh8 Kb7 Rhc8 Rd6 Bg2 f1R Ra1 Rb1 Rd1 Bf2 Kf1 Ba7 Ke2 Rbb6 Bf1 Re6 Kd2 Rbd6 Ke2 Bb6 Kd2 Bfe3+ Ke1 Bf2+
3N2Rr/2Pb3n/1q2p2b/N4N2/1NBBkb2/N2n1rQ1/B1Npp1r1/1K1RN3 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 dxc5 h5 axb5 Rh6 gxh5 Rh8 Kd2 Kf7 f4 Ke6 b4 Kf5 h4 d5 c4 a5 Kc2 g5 h6 e3 b6 a4 h7 a3 b7 a2 h5 d4 c6 g4 h6 g3 c5 e2 c7 g2 b5 Qd5 b6 Nf6 c6 Qd7 Qe1 Ne4 Qg3 Nf2 Nf3 g1R Na3 Nh3 Be3 Bg7 Ne1 Ra4 Rd1 Re8 h8N Na6 b8N Bf6 b7 Qd6 h7 Ra5 Ng6 Rg2 h8N Bh4 Nf7 Qd8 Rg1 Nc5 Na6 Bg5 b8N Bh4 Nb4 Bg5 Nh4+ Ke4 f5 Rh8 f6 Rh2 Nf5 Qd7 Nd8 Qd6 f7 Rg2 f8N Bd7 c8B Bf4 c7 Ng5 Nb8c6 Nh7 Nfe6 d3+ Kc1 Ra8 Na5 Qb6 Ned4 Bh6 Ndc2 a1B Ba6 e6 Kb1 d2 Bc4 Bag7 Bd4 Nd3 Ba2 Be5 Bc4 Rf2 Bg2+ Rf3 Qg7 Qb5 Ba2 Qb6 Nf7 Rag8 Qg6 Kf4 Nd8 Rf1 Bgd5 Rf3 Bdc4 Ke4 Qg2 Rg4 Qh2 Bef4 Rg3 Rh4 Rg8 Rg4 Qf2 Rg1 Qg3 Rg2
1Bq1R3/n5q1/qRr3nk/R3p3/Q2rRR2/bR3KPN/pp2b1N1/2R1BB2 w - - 0 1 illegal: No proof kernel
NN6/N6q/3pNbB1/KbpnB2n/2NP2b1/Qp1B1N2/2r3nN/1RR1q2k w - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 b5 gxh5 Ra7 c4 Rb7 Bh3 axb4 Bf1 b3 Bd3 b4 Bf1 Rb5 cxb5 Bb7 Qc2 Ba6 Qd1 Bc8 f4 Kf7 d4 Kf6 Kd2 e5 h4 g5 a4 d6 b6 e4 b7 b2 h6 b3 Kc3 g4 Kb4 e3 a5 c6 h5 g3 h7 e2 h6 e1Q+ Nd2 b1B a6 g2 a7 Qe3 a8B Nd7 b8N Ba2 Ndf3 Nc5 Rb1 Ne7 Bd3 Nb7 Nh2 Be6 Ngf3 Rg8 h8N g1N h7 Bc8 Ng6 Bh6 h8N Bg7 Nge5 Rf8 Nhg6 Qd7 Nc4 Nh3 Nge5 Nc5 Ka5 Ne6 Qf1 c5 Nec6 Qe2 Na7 Nd5 Bd2 Rg8 Qc1 Qe1 Qa3 Qe7 Rc1 Bb1 Bc6 Bh8 Be8 Ng7 Bg6 Nh5 Rf1 Qh7 Rg1 Ke7 f6+ Ke6 f7 Bf6 Rf1 Ba6 Rh1 Bb5 f8N+ Ke7 f5 N3f4 Rf1 Ng2 Nfd7 Bc2 Ndb6 Bd1 Na8 Rf8 Ng5 Bg4 Ngf3 Re8 Na6 Kd7 Rb1 Re2 Nb8+ Ke7 Rc1 Bh8 f6+ Ke6 f7 Bf6 Bc3 Rc2 Bd2 Nb4 f8N+ Kd5 Be8 Qg8 Bf4 Qh7 Be2 Ke4 Ne6 Qf7 Be5 Nd5+ Ncd2+ Ke3 Bd3 Qh7 Rg1 Kf2 Beg6 Qe4 Nc4 Qe2 Rgd1 Qe1+ Nfd2 Kg1 Rb1 Nc3 Ndf3+ Kh1 Rdc1 Nd5+
2bk4/1bR2QNp/6NR/1Bb2N2/qr2r1pN/B1r1N2P/1BNp2n1/N4q1K w - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 gxf5 b5 axb5 Nh6 e4 Ng4 f4 Nh6 f6 Kf7 e5 Ke6 f5+ Kd5 Ra4 Nc6 Ra1 Ng8 e6 Ne5 Bh3 Nf7 exf7 Kc5 Bf1 Kd6 Kf2 Kc7 Kg2 d5 b4 a5 c4 e5 c5 g5 c6 d3 b6+ Kd6 c7 Kd7 b5 d2 b7 e4 b8N+ Kd6 b6 a4 b7 d4 Nc6 Kd7 b8N+ Kd6 Bb5 g4 Na3 d3 Nd4 e3 Qf1 d1B Ndc2 e2 Nd7 e1Q Bb2 d2 Nf3 Bb7 c8N+ Kc7 Nd6 Qe5 Nac4 a3 Rc1 a2 Nc5 a1R N4e3 R8a3 Nb3 R1a2 Nba1 Bc8 Nh4 Qf4 Qf3 Be7 f8B Rc3 f7 Nh6 f6 Qa4 Ndf5 Bc5 Be7 Qd3 f8N Qdc4 Nfg6 Re8 f7 Raa3 f8N Rab3 Qd5 Rb4 Qf7 Bf3+ Kg1 Bfb7 Ne6+ Kb6 Neg7 Kc7 Bf6+ Re7 Ba3 Kd8 Bd4 Re4 Kg2 Rd3 Bdb2 Rdb3 h3 Qd3 Rhf1 Rc3 Kh1 Qc4 Ng3 Qe2 Rf6 Nf5 Rc6 Ne7 Ng3f5 Nd5 Rc7 Nf4 Rf1 Ng2 Rf4 Red4 Re4 Qd3 Re6 Rf4 Nge7 Rfd4 Rh6 Re4 Neg6 Qf1+
nK1BN3/3P2N1/k2NrN2/8/ppqR1R1N/2B1p2Q/1N1b1np1/rr1b1B1N w - - 0 1 illegal: No proof kernel
k3KNNR/bpnr3R/1R1p2R1/3b1Pb1/2R2nR1/q1N1rQ2/1p1p1RB1/2B5 w - - 0 1 illegal: Other
n1RK2R1/pp1QBb1k/3BB3/2R2RRp/4n3/1pb4P/1q1b1R2/Nr1N1bR1 w - - 0 1 illegal: No proof kernel
1Q6/q6R/2Q3PN/4B1pQ/n2r1nbN/q1BrRB2/3K1bB1/1NRb2k1 w - - 0 1 illegal: No possible last move
R1N1N2Q/1Q4pR/1Pq1Nr1b/2rr1n2/B2R3K/1Q2q2B/2B1k2N/2n3r1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 c4 e4 cxd5 b4 a6 e3 fxe3 Be6 e4 Nc6 e5 Bd7 Bb2 Nb8 Bc3 Bb5 axb5 Qe7 b6 Qd6 Bd4 Qe7 Bf2 Qd7 Bh4 Qc8 Bd8 Qxd8 Kf2 Kd7 Kg3 f5 e4 c5 d4 c4 h4 b3 h6 c3 e6+ Kd6 a7 b2 h7 c2 e5+ Ke7 d6+ Ke8 d5 c1R d7+ Ke7 h5 f4+ Kh4 f3 h6 f2 Bh3 f1Q Nd2 b1R Ne4 Qc7 d8R Qcc4 Qb3 Nc6 Nf3 Rc8 a8B Na7 Nh2 Qc6 Nd6 Qf3 Ra4 Rc2 Rd4 Rd2 Bb7 Rc7 Ra8 Qe3 Ba6 Rdd1 Bd3 Nb5 Bc2 Nc3 Nc8+ Kd8 d6 Na2 d7 Ne7 Qb2 Nc1 Qb3 Rg8 h8Q Nf5+ Kh5 Bd6 h7 Rf8 Qg8 Qb5 h8Q Rc5 Qf7 Be7 Kg4 Bg5 Kh5 Bh6 Kg4 Ng3 Kh4 Rg1 Qf3 Rb2 Qb7 Qc6 Na7+ Ke7 d8N+ Ke8 e7 Nf5+ Kh5 Rb1 Ne6+ Kf7 Nc8 Rd1 Kg4 Kg6 e8N Rf7 Ng5 Ra1 e6 Rf6 e7 Raa5 Ne6 Rd5 Ned6 Rac5 e8B+ Rf7 Bg2 Rg1 Bd7 Kf6 Ne8+ Ke5 Kh5 Rf6 Bh3 Qc7 Ba4 Qc6 Rd1 Qc3 Rd3 Ke4 Rd1+ Ke3 Rd4 Ne7+ Kh4 Ke2 Rg4 Qe3 Rd4 Rgf1 Rg1 Re1 Rg5 Rg1 Rh5 Bf4 Rh7 Bg5+ Kh5 Bh6+ Kh4 Nf5+
5Q2/2Qr4/NQ3R2/q1R1KP1p/BB2p3/q3k1bq/1B2NNBn/2q1R1q1 w - - 0 1 legal: proof: e4 g5 f4 b5 c4 a5 g4 f5 gxf5 d5 b4 dxe4 a4 g4 axb5 a4 h4 Be6 f6 Bd5 cxd5 Nc6 f5 Ra5 bxa5 Ne5 Be2 Nf7 Bf1 Ng5 hxg5 Bh6 Nc3 Bg7 Nb1 Bf8 Kf2 Kf7 Ke3 h5 Kd4 c5+ Ke5 c4 d4 e3 a6 c3 g6+ Ke8 g7 Kd7 d6 c2 a7 e2 a8R e1Q+ Ne2 a3 d5 g3 f7 g2 b6 g1Q b7 a2 b8N+ Kc8 d7+ Kc7 d6+ Kb6 Qd4+ Kb5 Ra6 e6 Bg2 Qef2 Bb2 c1Q Nd2 Qe7 d8Q Qfh4 d7 Qh3 Ne4 Nh6 g8B Rh7 Q4b6+ Kc4 Nf2 Qea3 Qdc7+ Bc5 Rb1 a1Q f8B Rg7 d8Q Rd7 Ra5 Q1a2 Na6 Ng4+ Ke4 Nh2 Ke5 Qa1 Be7 Q1a2 Qf8 Qa1 Rb5 Q1a2 Bf7 Qa5 Be8 Q2a3 Nd1 Kd3 Nf2+ Kd2 Bd6 Be3 Rc5 Bg5 Be7 Ke3 Bd6 Rh7 Ba4 Bh4 Ra1 Qcf1 Rc1 Rd7 Rc4 Qc1 Rg4 Qce1 Rg6 Qc1 Rf6 Kd2 Kd4 e5+ Kd5 e4 Ke5 Qgd1 Re1 Ke3 Qcc6 Qdb3 Qcc7 Qg8 Bf1 Qg1 Bg2 Qd3 Be7 Qa3 Rb5+ Rd4 Bb4 Qc6 Bh1 Qc1 Rc5 Rd7 Bg2 Bg3+
5r2/1B2NBP1/N2k4/7N/p1Brr1r1/4pqpb/Q2RR1QK/R1n2Q1N w - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 b5 a4 e5 axb5 d4 c4 d3 c5 Bd6 cxd6 Qd7 exd3 e4 d4 Qd8 d5 Nc6 d4 Ne5 fxe5 Qe7 Nd2 Qd7 Nb1 Qd8 Kf2 Kd7 Kg3 h5 b4 f5 b6 c5 g6 a5 b5 h4+ Kh2 h3 g4 a4 g7 c4 g5 c3 b7 c2 b8Q Nf6 g8B Ra5 e6+ Ke8 d7+ Ke7 g6 Rh7 d6+ Kf8 b6 Rh4 e7+ Kg7 e8B Kf8 b7 Qe7 d8Q Qf7 d5 Rh7 d7 Rb5 d6 Qe7 Bd5 Rb4 Bfc4 Qe6 g7+ Kg8 Bf4 c1R Qa8 e3 b8N Rh8 Nd2 Nh5 Nf1 Rb7 Ne2 Rb2 Bg3 f4 Na6 Rb4 Bb7 Qd5 Qe1 Rd1 Bf7+ Kh7 Qh4 Rf8 d8N Qf3 d7 Rd4 Nc6 Re4 d8R Kh6 Bd3 Rbd4 Bdc4 Bf5 Qe7 Bd7 Qa3 Kg5 Qd1 Kf6 Ne7 Ke5 Qa2 Kd6 Rg1 Rd3 Rg2 Rdd4 Bf2 Ng3 Be1 Nh1 Nfg3 Nf2 Nh1 Nd3 Neg3 Nc1 Re2 Re5 Re8 Re4 Nh5 Bc8 Bf2 Be6 Rd8+ Bd7 Kg1 h2+ Kf1 Re6 Rb1 Ke5 Bc8 Rd3 Ra1 Qg3 Qg2 Qf3 N1g3 Rd2 Bb7 h1R+ Qg1 Rh2 Qg2 Rh4 Kg1 Rd3 Qdf1 Rdd6 Nd5 Re7 Be1 Bh3 Kh2 Rg4 Nh1 Ree6 Ne7 Rd1 Rd3 Rd2 Rc3 Rd4 Rcc2 Kd6 Rcd2 Re4 Bg3 fxg3+
Q2R2BR/5n2/B2Q2R1/1Qb1P3/nQ2NbqK/2b2bN1/1b2B2b/1kN1r2b w - - 0 1 illegal: No proof kernel
3NKNq1/B2BR3/nB6/1QRQ2qr/nn4N1/r2r3R/P2qq1B1/2Qbk3 w - - 0 1 legal: proof: g4 a5 c4 f5 e4 g5 exf5 d5 cxd5 e6 h4 Bc5 hxg5 Bb6 f4 Ne7 b4 axb4 f6 Ra5 g6 Ng8 g5 Ra8 f5 Bc5 Bd3 Bf8 Bf1 Bg7 fxg7 Qe7 Qb3 Qf6 Qd1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 f6 b5 f7 b3 f8R Kb4 d4 c5 d6 h4 d5 c4 d7 c3 Kd6 b2 Rf5 h3 Bg2 h2 Nd2 b1Q Ngf3 c2 Nf1 Kc3 Be3 c1Q Nd4 e5 Ne6 e4 Ba7 e3 Nf8 e2 Ne3 e1Q Ng4 Ne7 g8B b4 g7 b3 g6 b2 Be6 Na6 g8Q Nc6 g7 Qcg5 Qc1+ Qc2 Rb1 Qe8 d8B Ncb4 Bdb6 Rh3 Bd7 Rd3 Qh8 Q1e2 Qh5 Qed2 g8Q Qee2 Ra1 b1N Re5 Bb7 Re7 Bc6 Qe6 Ba4 Qe4 Bb3 Ke6 Ba4 Kf7 Bb3 Qe6 Ba4 d6 Bb3 Rf1 h1R Qd5 Ba4 Rf5 Rhh3 Qa3+ Qb3 Rf3 Rh1 Rh3 Kc2 Qb2+ Kd1 Qc2+ Ke1 Qc1+ Qbd1 Qb5 Nc3 Rb1 Bc2 Rb2 Ba4 Rc2 Bb3+ Qd5 Na4 Rc8 Qg8+ Ke8 Qdg5 Qb5 Bc2 Qf7 Rh2 Qfd5 Rh1 Be6 Qed2 d7 Bb3 d8N Rh2 Rg3 Rh5 Rh3 Bc2 Rc5 Qe2 Qb2 Qdd2 Bd7 Bd1 Qc2 Rc8 Qc1 Rc6 Be4 Rd6 Bg2 Ra3 Qe6 Rd4 Qd5 Rdd3
k3rRqQ/5rr1/1RN2N2/r2QrrR1/n1B5/nR1PB3/1N3Q1B/K4bq1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 b4 Kd7 f6 h5 d3 e5 Kd2 a5 Kc2 c5 Kb2 Kc7 d6+ Kb7 g7 h4 f7 c4 f8R h3 d7 c3+ Ka2 e4 b6 a4 g6 a3 b5 e3 Qg4 h2 Qf3+ Nc6 Bh3 c2 Be6 e2 Nc3 e1R Qf2 f3 Na4 Rh5 Rb1 Na7 Ne2 Rf5 Be3 c1Q Ka1 a2 Nd4 Nf6 g8N Ne4 g7 Nc3 Rg1 h1R Nf6 Rh7 g8Q Rg7 Nb2 Na4 Rg5 Re2 Nc6 Qg1 Bc4 Rb8 Rd1 Ka8 Qd5 Qe8 d8Q Be6 Rf7 Qg8 Rf8 Bd7 Qe8 Re1 Qh5 Re8 Rb1 Be6 Qh8 Re2 Qfh4 f2 Qh2 f1R Qf2 Kb7 Bc1 Ree5 Be3 Kc8 b7+ Kc7 b8B+ Kb7 b6 Nb5 Nd1 Ka8 Rb3 Na3 Bd6 Re4 Bh2 Ree5 Qd6 Bd5 Qd7 Bg2 Qd5 Nb1 Nb2 Bh3 Qc2 R1f4 Qe2 Bf1 Qf2 Na3 Nd4+ Kb8 b7 Ka7 b8R Rf3 R8b7+ Ka8 Nc6 R3f4 Ng4 Rff7 R7b5 R4f5 Nf6 Nc3 Na4 Nc2+ Kb2 a1R Rb6 Ra3 Nc5 Ra6 Na4 Na3 Ka1 Ra5 Nb2 Na4
kN1B4/B1Q2Rb1/b2N3q/3K1r2/1NRRB1qq/q1b1P1b1/1BQ1n3/1n5Q w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 g5 h3 Ra6 h4 Rg6 gxf5 exf4 Bg2 g4 Bf1 Rg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 Kf2 Kd7 b4 h5 d4 c5 d6 h4 g6 c4 d5 h3 f6 a4 g7 h2 b6 f3 Ke3 c3 Kd4 a3 b7 c2 e3 g3 b5 f2 b6 a2 f7 g2 Nc3 Qg5 Bd3 f1Q Be4 Nf6 g8Q Qf2 Nb5 Qgh4 Qg6 Bg7 f8R Qg4 Ne2 g1Q Nf4 Rh5 Nd3 Qfh4 Nb4 Rf5 Bb2 c1B Rf7+ Kd8 d7 Bd2 Rb1 a1B Rc1 Be1 Nd6 Bg3 Rc4 Nc6+ Kc5 Qf1 b8N Nd4 b7 Kc7 Qc1 Qfe2 Rd1 h1Q Qc2 Qef1 Qh5 Ne2 Rdd4 Qc1 Qh7 Qhg5 Qh3 Qh6 Qg2 Q1h5 Qh1 Qhh4 N8a6+ Kd8 b8B Bb7 Ba7 Bc8 Ba3 Bc3 Nb8 Kc7 Bb2 Ba6 Nb7 Qa1 d8B+ Kc8 Kc6 Qa5 d6 Qa3 Rd1 Bce5 Rdd4 Nd5 Kc5 Ndc3 Kc6 Qh8 Kc5 Nb1 Kc6 Qe8+ Kd5+ Qc6+ Ke6 Qg6+ Bf6 Bb5 Rd2 Bc3 Rdd4 Qgg4 Be7 Ba6 Bg5 Qc5 d7+ Kc7 Nd6 Rd5+ Nf5 Kb7 d8Q+ Ka8 Qc7 Qb5 Bd8 Qb6+ N8c6 Re5+ Kd6 Re6+ Kd5 Re7 Nb8 Qbh6 Nd6 Re8 Rd7 Rf8 Re7 Rf6 Rf7 Rf5+
1Q3rN1/b1QbN1r1/rN2R1r1/1B4QB/4R1B1/n1b2Q1P/1b2Rn2/K2n1k2 w - - 0 1 illegal: No possible last move, all moves rejected
2k5/R1b3bQ/4b3/Q2RQr1B/2b2RPN/B1qQ1b1b/4N1br/1N1b1K1B w - - 0 1 illegal: No possible last move
qBq4Q/1nRNk3/qqB4Q/5bp1/3Rn1r1/1P1Q2N1/NR1B3b/r3R2K w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 g4 d5 gxh5 a4 cxd5 b5 Qb3 b4 Qd1 b3 axb3 a3 Ra2 axb2 Ra6 Ra7 Ra1 Ra8 h4 c5 d4 e5 f4 g5 Kf2 c4 Kg2 e4 f6 c3 d6 c2 f7+ Kd7 f5 e3 h6 e2 h7 e1Q d5 Be7 f8Q Ra2 f6 Qb4 h5 Qd4 f7 Qd2+ Ne2 Qf4 h6 Ra4 Ng3 Qf6 Ra2 Qf5 Bb5+ Nc6 Re1 Qb6 Bd2 c1Q Nc3 b1Q Rb2 Ra2 Kh1 Ra5 Na2 Bb7 Qg7 Qf4 f8N+ Ke8 Nd7 Nd8 Bc6 Qfc4 Qf3 Qca6 Qd3 Nf6 Qgg6+ Nf7 Qg7 Rf8 h8Q Bc8 h7 Ne4 Qh6 Qa8 Q8g7 Qba6 h8R Nd8 Rh7 Nb7 Qh8 Qbc2 Rg7 Qc5 Nf6+ Kd8 d7 Qb8 Nb4 Qa1 Nf1 Qcb6 Rf7 Bc5 Ng3 Qaa8 Rg7 Kc7 d8B+ Kd6 Rh7 Bg1 Bc7+ Kc5 d6 Bh2 d7 Ra2 Ng4 Rf4 d8R Bf5 Rd4 Qc8 Nf6 Rg4 Bb8 Ra7 Rc7 Qa4 Nbd5 Kd6 Nc3+ Ke6 Nd7+ Ke7 Bf4 Qab5 Bd2 Ra1 Na2 Q5a6
nq2Q1qk/2B3R1/1Q1P4/2K3Rr/1BpbN1Q1/1b1bbN2/7B/2nNNR1r w - - 0 1 illegal: No possible last move, all moves rejected
2NKRb2/r1q5/1RQ1RP1n/1BN2Bk1/b1N3N1/1b2nq2/1Q1p4/3nqQB1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 h4 c5 hxg5 cxd4 e4 f4 g6 f3 g7 Ra6 g5 Rc6 g6 Rc5 Qd2 Rg5 Qd1 Rg3 fxg3 Nf6 g4 Ng8 g5 f2+ Ke2 Ba6 Bg2 f1B+ Ke1 Bc8 Bh3 Be2 Bg2 Bg4 Bf1 Bf5 exf5 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 e5 Kd3 Ke7 Kc4 h5 Kc5 d5 c4 h4 b4 h3 b6 e4 b5 d3 b7 h2 b6 e3 Na3 d2 Rb1 e2 Nh3 e1Q Nf2 d4 Ng4 a4 f6+ Ke6+ Kb5 Kf5 c5 d3 c6 Qc7 Nc4 Qf4 c7 Nc6 b8N a3 b7 a2 Kb6 a1N Na6 Rh3 b8Q Rh4 Nc5 Ba6 c8N Qf3 Kc7 Nd4 Qb2 Bb7 Kd8 Nh6 g8R Ndc2 g7 Ba6 g6 Bb5 Qe2 d1Q Be3 d2 Bg1 Rh5 Qe8 Ba4 Qc6 Qc1 Be2 Bd6 Re8 Ne3 g8Q Nd1 g7 Nc2 Qe6+ Kg6 g8B Nce3 Bh7+ Kg5 Bf5 Bf8 Qee5 Qc3 Qc1 Qc2 Rb6 Bb3 Qeb2 Qc3 Bf2 Qc2 Rf1 h1B Bg1 Qc3 Bed3 Qe5 Re6 Qc7+ Ke8 Qfe2 Re5 Rh4 Na3 Qg3 Qe4 Qef2 Re1 Nd5 Ne3 N1c3 Re7 Rf4 Ng4 Qfg2 Qe6 Ra4 Ba6 Qe2 Nc4 Qef2 Re4 Ne3 Qf1 Ncd1 Qd6 Ra5 R4e6 Bc6+ Qd7 Bb5 Qc6 B5a4 Bb5 Qff4 Ba6 Qe1 Bb5 Qb8 Kd7 Ra7+ Kd8 Qf3 Re8 Qc7+
QBQ3R1/n7/b1bpn3/NRPQ1B1k/3N2R1/Bb1b2bN/q2n2K1/3R1r2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 axb5 e5 d4 cxd4 f4 a4 fxe5 Ra5 bxa5 Bb7 Bf4 Ba6 Bc1 Bc8 Kf2 f5 c4 Kf7 e4 Kg6 g4 h5 e6 f4 e5 a3 a6 h4 b6 h3 b7 h2 e7 a2 e8Q+ Kh7 c5 d6 g6+ Kh6 e6 d3 e7 d2 g7 f3 a7 Nf6 g8R Qa5 a8Q Nd5 Bh3 Nc7 Na3 Rh7 Rb1 a1N Nc4 Qa2 Rb5 Rf7 g5+ Kh5 g6 Ne6 g7 Nb3 Na5 Nc6 b8B Na7 Ba3 Ba6 Qc8 Rf5 e8N Be7 Kf1 Bh4 Nc7 Rf4 Bf5 Bg3 Bc2 Rf5 Nh3 Rf6 Rg1 h1B Bf5 Rf7 Qe2 d1B Qee4 f2 Qed5 Be4 Rh1 Bd3+ Kg2 Nd2 Rf1 Bb3 Rd1 Ng5 Ne6 f1B+ Kh1 Bfe2 Nd4 Ne6 Kg2 Rf6 Re8 Bb7 g8R Bc6 Rg4 Rf7 Rb6 Ba6 Reg8 Bed3 Rb5 Ng5 Bh7 Rf1 Bf5 Ne6
8/1Bk1b1QR/R2qn3/rR1Q1B1p/2P1QrrB/3KbN1N/8/qN1r1r1N w - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f7 Kd6 h4 Qe8 f5 Bb7 f6 Be4 Rh3 Qc8 Rh1 Bf5 gxf5 Qd8 Be3 g5 Ra6+ Nc6 Bc1 g4 Ra3 Ne5 Ra1 Nf3+ Ke2 Ng5 hxg5 Qb6 Ke1 Qd8 Kd2 e5 c4 a5 b4 a4 b6 h6 g6 d3 b5 g3 g7 a3 b7 e4 b8Q+ Qc7 b6 a2 b7 g2 Ne2 g1Q Ng3 Qb6 Qe8 Be7 f8N Qg1 b8R Ra5 f7 Nf6 g8B Nd5 f6 Nf4 Bg2 Ne6 Bh7 Rg8 Rb5 Rg4 Ng6 e3+ Kc3 d2 f8Q e2 f7 e1R Nh4 Rf4 Nf3 Ree4 Bf5 Kc6 Rh3 Qd6 Nh1 Kc7 Qg7 Rg4 f8N Ref4 Ng6 h5 Rg3 Qe1 Qa8 Qf1 Qe1 d1R Qee4 Qg1 Qad5 Rf1 Kd3 Qa7 Bb2 Qa8 Bf6 Qh8 Bh4 Qa8 Na3 Qaa6 Rc1 a1B Nb1 Bd4 Rd1 Be3 Rd2 Ra1 Ra2 Qa8 Ra6 Ra5 Ng5 Qa7 Ne5 Qa8 Nef3 Qh8 Qf8 Qa1 Qg7 Qb6 Qdd4 d5 Nh3 Qd6 Qde5 d4 Q5d5 Rg6 Qf7 Rg7 Rg6 Rg8 Rh6 Rgg4 Rh7 Ra2 Qg7 Ra5 Kc2 d3+ Kb3 d2 Kc2 Rc1+ Kd3 d1R+ Nfd2 Re1 Qdd4 Qb2 Qee5 Rf2 Bb7 Ref1 Qe4 Rff4 Qdd5 Qa1 Nf3 Rcd1+
1Q1B4/r2R4/Qnb3Np/P2Nb3/q6q/5Q1R/kBnnBK2/q2NR1qQ w - - 0 1 illegal: No possible last move
3q1b2/3kB1RQ/4n1PQ/nr1N1nKQ/2r3NB/p2R4/Rn1R2N1/3Bq1q1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 c5 Kf3 h5 b4 e5 d4 a5 f6 h4 b6 h3 b5 h2 d6 c4 d7+ Kf7 d5 a4 d6 Ke6 f7 a3 g6 c3 g7 c2 g5 e4+ Kg4 e3 g6 f3 b7 e2 b6 e1N Nh3 f2 Nf4+ Kf6 Nc3 Qe8 d8B+ Ne7 g8N+ Ke5 d7 Rh5 Be2 f1Q Ng2 Ke6 Nf6 Rh6 Kg5 Nec6 Ncd5 Na6 b8Q Bc5 f8Q Be7 b7 Qg1 Qc7 Rb8 Ra2 Rh4 Qh6 Bf8 Be7 Rc4 d8R Nd3 Ng4 Nac5 Bd2 c1N Be1 Na5 Bh4 N1b3 Rd7 Qd8 Rd2 Rc8 b8R Nb2 Rb7 Nd4 Rb3 Nf5 Rbd3 Qe1 Rf1 h1Q Rf2 Qhg1 Bf3 Nba4 Ra2 Rb8 Rfd2 Rb1 Qh2 Nb2 Qh7 Nab7 Qc1 Na5 Bd1 Na6 Rb7 Nc7 Qe5+ Kd7 Qeh8 Na4 Qh5 Rb5 Q8h7 Nb2 Rf2 Ne3 Kf6 Qa8 Bc5+ Kd8 Ra7 Ne6 Rg7 Rb7 Be7+ Kd7 Qd2 Nf5 Qdh6 Rb5 Rfd2 Nc7 Kg5 Qb8 Nf2 Qd8 Ng4 Ne6+
rB2n1R1/RNKb3B/Q3p2Q/2R1N1B1/q2kPq2/b6r/7b/2r1NQbN w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 h4 f5 h5 Nc6 g3 Ne5 g4 Ng6 hxg6 fxg4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 h5 d4+ Kc4 b4 c5 g7 a5 d6 e6 b6 g3 d7 h4 g6 a4 b7 a3 b8B g2 b5 a2 b6 h3 d5 h2 d6 Ne7 g8R Rh7 b7 Rh5+ Bg5 Qb6 d8N Ra4 g7 Qa6 d7 Ra5 Nh3 g1Q Nd2+ Kc3 Nc6 c4+ Kd6 Qga7 d8N Qf2 Nf3 Bd7 Kc7 Nf5 Nce5 Bc5 Ne1 Qf4 Nf2 Nd6 e4 Qb5 Bh3 Qa4 Bf5 Rh3 Bh7 Ra8 Qh5 Kd4 Qh6 c3 Rf1 c2 Nh1 c1B Rf3 Ba7 Rc3 Rd3 Rc5 Rb3 Re8 Rd3 g8Q Ba3 Qf7 Rc3 Rg8 Rh3 Rac1 a1B R1c2 Qg4 Qf1 Qf4 Ra5 B7c5 Ra7 Bc3 Rc1 Bd2 Qa6 Be3 Rc3 Bg1 Rc2 Bcb4 Rc5 Ne8+ Kb6 Bd2 Qf1 Rh4 Bd6 Qf5 b8Q Qg4 Qc8 Rh3 Qca6 Bf4 Bb8 Rc3 Nb7 Rc1 Ng3 h1R N1d3 Qf3 Ne1 Rh3 Nh1 Qe3 Rb5 Bfh2 Rc5 Nf6 Kc7 Qd2 Rg6 Qf4 Rg8 Ne8+
Bk2r1Qn/1q4R1/1PB1Q3/pb3QNq/2R4b/N1n4R/BQ6/1nK2Nnb w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 f4 f5 exf5 g5 b3 Bd7 f6 Na6 f5 Bc8 Bb2 Nb8 h4 a5 g4 Bh6 h5 Bg7 Be5 Bf8 Bf4 gxf4 g5 Nh6 Rh4 Rg8 Rh2 Rg6 hxg6 Ng8 Rh1 Bg7 Nf3 Qd7 Rh6 Na6 Rh1 Bb7 Rg1 Kd8 Bg2 Nh6 Ra4 Rc8 Ra2 Nb8 Ra1 Qd6 Qc1 Kd7 Qb2 Rh8 Qc1 Bc8 Rh1 Ng8 Ng1 Bf8 Qd1 Ke8 Bf1 Qd8 d4 Kd7 Kd2 h5 g7 c5 b6 e5 f7 f3 g6 f2 b7 Kc7 d6+ Kb6 f6 Ka7 d5 e4 d7 h4 b4 e3+ Kc1 c4 b5 h3 d6 h2 Qe1 c3 Ra4 e2 Bg2 f1N Nf3 c2 Rc4 Na6 Nfd2 Ne7 g8B Nf5 g7 N1e3 Na3 Nh6 Nf1 Nc5 Bc6 Be7 f8Q Qb6 d8N Bd7 f7 Ne4 Ne6 Nc3 Ng5 Nb1 b8R Be8 d7 Qb7 d8Q Nd1 Qdd2 Ndc3 Rc8 Bd8 Rc7 Kb8 b6 Bd7 Qc5 Bf6 Bh7 Re8 f8Q Nf7 g8B Nh8 Bhe4 Bd8 Qf7 Bf6 Qg3 e1N Qf5 Nf3 Q7e6 Ng1 Bed5 Qc8 Ba8 Bb5 Bdc6 Qb7 Qgg4 Bd8 Rg7 Be7 Nf3 Bh4 Ng5 Nd1 Qb4 Ndc3 Qb2 Nf3 Rg1 h1B Rg3 Ng1 Rh3 Bd5 Qe7 Be1 Qef8 Qa6 Qge4 Na4 Rb4 Nac3 Qee7 Bf3 Ba2 Bh1 Rc4 Qb7 Qg8 Bh4 Qee6 Qa6 Qb3 Qb7 Kb2 c1Q+ Ka1 Qe1 Kb2 Qe4 Kc1 Qf3 Qb2 Qh5
q1r2Rnq/1Q4Qp/3b4/BR1nN2b/K2q1Q1N/5P2/3q1QB1/1n1kNRB1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 f4 d5 cxd5 Ra6 fxg5 f4 g6 f3 g5 Rf6 Kf2 Rf4 Ke3 f2 h4 Rf3+ exf3 Qd7 h5 Qd8 h6 Nxh6 Ke2 Ng8 Kd3 Kd7 Kc2 Kd6 Kb3 Ke5 d4+ Kf5 b6 e5 g7 c5 g6 e4 d6 c4+ Ka4 c3 b4 c2 b7 e3 d7 Kf4 b5 Qe8 d8B Ne7 g8R Nd5 g7 Na6 b8Q+ Nac7 Qb7 Nb4 d5 Nca6 d6 Be6 d7 Nb8 b6 Nd5 Qd2 Bf7 Na3 Bh5 Bg2 f1N Rb1 Bd6 Qf2 Nd2 Rb5 e2 Bb2 c1Q Nc2 e1Q Bd4 Q1e5 Rf8+ Qf6 g8Q Nc6 Qg7 Nb1 Ne1 Qd2 Bc5 Nce7 Nh3+ Kf5 Nf4 Ng8 Bc7 Qa8 Ng6 Kg5 Nh4+ Kf4 Rb8 Qfc3 d8N Qe5 Nf7 Qed4+ Kb3 Ndc3 Rf8 Nd5 Qfg3+ Ke3 Rf1 Ke2 Ne5 Kd1 Bd8 Q4f4 Bg1 Qf6 Qf2 a4+ Kc4 a3 Kb3 a2 Bc7 Qc8 Ka4 Qfd8 Qa7 Qb8 b7 Qa8 b8Q Qe8 Ba5 a1Q+ Kb3 Qd8 Qab7 Qad4 Q8c7 Qdb8 Qc4 Qd8 Ka4 Nh6 Rf7 Q4e3 Qf4 Qed4+ Rb4 Re8 Qgg4 Qf6 Rf8 Rc8 Qgg3 Qh8 Qgg7 Q4b2 Rb6 Ng8 Rb5 Qbd4+
nR4B1/2N1b1Qr/bBR1K1RQ/6Q1/2n2P1B/n4r1k/rNbNnp2/Q7 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 g4 Ba6 gxh5 Bc8 f4 exf4 e3 f3 Kf2 Qf6 Ke1 f2+ Ke2 Qd8 Kd3 f5 Ra5 f4 Kc2 f3 Ra4 Qf6 Ra1 Qf4 exf4 Bd7 Be2 Bg4 Bf1 Bc8 Kd3 Ke7 Kd4 Kf6 b4 Kf5 h4 Kg4 Ke5 g5 d4 a5 h6 c5 b6 c4 d6 a4 h5 c3 b5 c2 h7 a3 d5 a2 d7 Nc6+ Ke6 Ba3 h6 Nb4 d6 Na6 b7 Nf6 b8N Nh5 b6 Kg3 b7 g4 Be3 c1R Nd2 Rc4 Nh3 Rc1 Bc4 f1B Nf2 Bd3 Bb6 Bc2 Nd3 f2 Nb2 Nf6 Rg1+ Kh3 Qe1 Rd1 Rc1 a1N Qe5 Ne4 Qg7 g3 Ba2 Rf8 h8Q g2 h7 Rf7 Qhf8 Re1 Bd5 Re3 Bb3 Rf5 h8Q+ Rh5 Qff6 Rf3 Qfh6 Bb1 Rc4 Nc2 Rc6 Bc5 Ba2 Na3 Bd5 Bc2 Bb3 Nb4 Na6 Nd5 b8R Ra7 Nc7 Ba6 d8B Rh4 d7 Be7 Ndc4 Nd6 Nd2 Ndc4 Ba2 Bd6 Bg5 Be7 d8Q Rh5 Bh4 Ra8 Qhg5 Rh7 Qdf8 Ra7 Q7h6 Ra8 Qfg7 Ra7 Re1 g1N Re5 Ne2 Rf5 Bb7 Rf6 Ra5 Rg6 Ba6 Nd3 Ra4 Qa1 Ra5 Q8g7 Ra4 Nb2 Ra5 Ba7 Ndb6 Bb3 Na8 Bb6 Nd6 Kd7 Ra4 Bg8 Ndc4 Ke6 Nb1 Qd4 Ra2 Qdg7 Nba3
r4Q2/2NR4/Np3B2/3KRPq1/1B4q1/1nqbqR1q/2QbBN1k/QB2b3 w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 Bd7 h4 Bh6 e5 Bg7 f6 Bf8 f5 Bc8 f7+ Kd7 Nc3 Ra6 Nb1 Rg6 Bc4 Rg5 hxg5 Na6 Bf1 Nc5 Be2 Ne4 Bf1 Nef6 exf6 Bh6 Nf3 Bg7 Ng1 Bf8 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 a4 Kg3 d4 e5 a5 h5 g6 c5 a6 e4 g7 b6 d6 h4 a7 h3 a8Q b3 d7 h2 d5 e3 d6 b2 Nd2 b1Q Ne4+ Kf4 Kd5 g3 Ra3 c4 Bb2 g2 Nc5 Kg3 Nh3 Qc2 Nf2 g1Q Ba1 Qe7 d8R c3 d7 Ba6 Qc6 Bb5 Na6 e2 Bb2 Qe8 Qa1 Bb4 f8B Qa4 f7 Ne7+ Ke6 Ba5 g8B e1Q+ Qe4 Nc6+ Be7 Qd2 Bd3 c2 Bf6 c1B Bb1+ Bc3 Qc2 Na5 f8N Qg2 Re1 h1Q Bf7 Qgg1 Bh5 Qh3 Re4 Rg8 Be2 Kh2 Re3 Qde1 Kd5 Qg5 Ne6 Qag4 Nec7 Bb4 Rad3 Nb3 Re6 Bc3 Rf3 Bd3 Bb4 Qe7 Bh8 Qe3 Re5 Q7g5 Bf6 Rf8 Rde8 Rg8 R8e7 Ra8 d8Q Q1d2 Rd7 Qe1 Qd1 Q1d2 Qe8 Qb2 Qe7 Be1 Qc2 Bcd2 Qf8 Qc3
B2b1B2/Kb2bN1N/1Q4qn/p2R2Q1/1bBN1R1Q/qQ1bk3/1b1RP3/5r2 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 f4 dxc4 g3 g5 g4 e5 fxe5 a5 Ra2 f4 Ra1 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Qa4 Ra6 Qc2 Rg6 Qd1 Rg5 hxg5 Be7 Qa4 Bd6 Qd1 Bf8 Kf2 Kd7 d4 h5 b4 c5 g6 c3 d5 c2 e6+ Kd6 f6 Ke5 f7 Ke4 b6 f3 e7 h4 e8Q+ Ne7 b7 h3 b8R h2 b5 c4 b6 c3 b7 Be6 d6 Qd7 g7 Rh4 g8B Rh8 Bh6 c1B Ra2 c2 Nh3 Rh7 Rd8 Rg7 b8Q Qc6 d7 Bf4 Nd2+ Kd4 Qb6+ Qc5 Ng5 c1B Bg2 Bd6 Rf1 h1B Qdb3 Nf5 Qe7 Bb2 Nh7 Bc7 Qg5 Be7 f8Q Bc4 Qe8 Bb5 Bc4 Rf7 Bf8 Nh6 Qh4 Rf4 Qeg6 Ba6 Qgg5 g3+ Ke1 f2+ Kd1 Ba3 Kc2 Bb2 Ba8 Bhb7 Nf3+ Ke4 Nd4 g2 Kd2 g1B Kc2 Qa3 Kd2 Bc1+ Kc3 Ke3 Rd2 Bh2 Rb8 Bcd6 d8N Bg3 Rfd1 f1Q Nf7 Qg2 Rf1 Be1 Rd8 Bc7 Rd5 Bcd8 Qg7 Rf5 Rf4 Bb5 Qgf6 Qg6 Qfg5 B5c6 Bd3 Bd7 Kc4 Bdc8 Kb5 Bb2 Ne5 Rf6 Nf7 Bf5 Bc4+ Bd3 Rdf5 Bc6+ Ka6 Bd5 Ka7 Bb7 Rc2 B1b4 Rd2 Rc6 Rd5 Rc7 Bb5 Rc1 Bc4 Rf1
B1N3Qn/2B1n1Pr/b1K4r/R6n/p1B5/5B1n/NknRQrR1/Nn5Q w - - 0 1 legal: proof: d4 b5 h4 e5 g4 g5 a4 c5 axb5 f5 f4 Qf6 Nd2 Bh6 Nb1 cxd4 fxe5 f4 Bg2 Qf8 Bf1 Qf5 gxf5 g4 Nd2 Ne7 Nb1 Bg5 hxg5 Ng8 Kf2 Kf7 e4 h5 b4 a5 c4 d5 g6+ Ke7 b6 f3 c5 d3 Ke3 g3 Kd4 h4 b5 d2 f6+ Ke6 f7 f2 f8Q g2 c6 h3 Kc5 h2 b7 d4 c7 d3 b6 Nf6 g7 Ra7 Na3 Nh7 Qff3 Ra6 Nc2 Rd8 Ne2 g1N Nc3 Rd4 Qfe2 Ng5 Na2 Nd7+ Kc6 Nf8 b8R N1h3 Rg1 h1R Rg2 Nf7 Qde1 d1N Bf4 d2 Ra8 Ra7 b7 a4 b8Q Nc3 Rd1 Nb1 Na1 Ba6 c8N Ng6 Bg3 Nfh8 Bh2 Kf7 e6+ Kf6 e7 Rd8 e8B Rf7 Bc7 Rd6+ Kc5 Ke5 Bc6 Rf6 Qb3 Rh2 Qg8 Rh1 Kb6 Kd4 e5 Rf3 e6 Rf8 Nc1 Kc3 e7 Kb2 e8B Rf5 Na2 Rdf6 Rh2 Rd6 Bg2 f1N Bf3 Ng3 Rg2 Nh5 Bf7 Rh2 Qh1 Rf4 Be4 Rf2 Bc4 Re6 Bf3 Rf6 Rc1 Re6 Rc3 Rd6 Rd3 Re6 Nc2 d1N Rd2 Ne3 Na1+ Nc2 Ra7 Ne5 Kc5 Rh6 Ba8 Neg6 Kc6 Rh7 Rb7+ Ka3 Qd5 N3f4 Rb4 Ng3 Qd8 R2h6 Rb7 Nh3 Rb5 Nh5 Ra5 Kb2 Qg8 Ne7+
5q2/QBNr2Q1/1Q1r1P1p/5N2/qqN4n/R1RbK1Bk/2QR4/1B3rqr w - - 0 1 legal: proof: g4 d5 e4 dxe4 a4 g5 h4 b5 axb5 f5 gxf5 g4 f4 Bh6 c4 Bg5 hxg5 Nc6 Bd3 Nb4 Bf1 Nd5 cxd5 Bb7 Nh3 Ba6 Ng1 Bc8 Ke2 Kd7 b4 c5 d4 e5 b6 a5 d6 h6 f6 Ke6 b5 Kf5 d7 e3 f7 a4 f8Q+ Nf6 b7 e4 b8Q a3 b6 g3 g6 Kg4 b7 c4 d5 c3 f5 c2 g7 g2 g8B a2 d6 Ra3 Nd2 Rh7 Qg7+ Kf4 Qa7 Rc3 b8N Ng4 f6 Kg3 Bd5 Qf8 d8R Rc6 d7 Rd6 Ngf3 g1Q Nc4 Ba6 Nd4 Bb5 Bd2 c1R Qc2 Rb1 Bh3 Rf1 Na6 Kh4 Bc1 Nh2 Bb7 Nf3 Nc7 Ba6 Ba3 Bb5 Rc1 a1Q Bb4 Qa4 Bf5+ Nh2 Bg6 Kh3 Be1 Ba6 Ra8 Bb5 d8Q Ba6 Kd1 e2+ Kd2 e3+ Kd3 Bb5 Bg3 e1R Rd1 e2 Rd2 Rc1 Ke4 Rcd1 Nf5 Rb1 Qdb8 Rbd1 Qb6 Rc1 Q8a7 e1Q+ Re2 Qeb4 Rd2 Qgc5 Rg1 Nf3 Rgg2 Ra1 Rge2 Nh4 Re3 Rh1 Rc3 Qg1 Kf4 Qg2 Ke3 Raf1 Na3 Bd3 Nc4 Qa6 Qb8 Qab5 Raa3 Q5a4 Q8a7 Qg1+ Rf2 Rd5 Bf7 Rh8 Na5 Rg8 Be6 Rd6 Ba2 Qa8 Nc4 Rgd8 Bb1 Qc8 Qc5 R8d7 Qcb6 Qg2 Re2 Qf8 Rd2 Qg1+
1q1B2rR/n3R3/2R1b2N/q1n1B3/Q2p1KQ1/NRPk4/2r1npB1/1b1NQ3 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Bd6 Nh3 Bc7 Ng1 Ba5 bxa5 Ra6 Qd2 Ra7 Qd1 Ra8 Kf2 Ke7 Kf3 Ke6 e4 f5 h4 d5 h6 g5 b6 a3 h5 d3 h7 d4 h6 g4+ Kf4 d2 a6 g3 c3 g2 b7 a2 a7 Qd6 Nh3 g1Q Na3 Qb6 Rb1 a1N Rb3 Qd6 Bg2 Qc5 Qg4 d1B Nf2 Bf3 Nd1 Na6 b8B Qa5 Bc7 Nc5 Bd8 Rb8 a8Q Ne7 Rh3 Rg8 h8N Be2 h7 Bd3 Nf7 Nc6 h8R Na7 Nh6 Bb1 Be3 Qf1+ Bf2 Qfb5 Bg3 Qbb6 Rh2 Qd6 Qc6 Rb4 Qa4 Qb8 Rh5 Nc2 Rg5 Ne3 Rg7 Rb5 Rc7 Nf1 Bh2 Ng3 Rc6+ Kd7 Bc7 Ke7 e6 Kf6 e7+ Be6 e8R Rb6 Re7 Ne2+ Kf3 Ra6 Bhd6 f4 Bd8 Rg5 e5+ Kg6 Rbb7 Rb6 B6c7 Rb2 Rb3 Rc2 Bd6 Nb7 Ke4 f3 B6c7 f2 Bd6 Bc8 e6 Nc5+ Kf3 Bd7 Be5 Bc8 Rf7 Bd7 e7+ Be6 e8Q Nd3 Bec7 Nc5 Re7+ Kf6 Qeh5 Rg8 Qh1 Nf4 Qe1 Ne2 Rd6 Ke5 Rc6+ Kd5 Be5 Qbb4 Nb5 Kc4 Na3+ Kd3 Rb7 Ng3 Re7 Qb8 Kf4 Ne2+
2N3Rn/2kr2N1/R2NQp1b/3B1qrB/6B1/4KpnN/Q2Pq2q/3R1Qr1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 b4 f5 b3 axb3 Be6 b4 Bd7 b5 Bc8 e4 Kd7 b3 Rh6 Ba3 Ke8 Bd6 Be6 fxe6 Rh8 e7 Kd7 Bc5 Nf6 Be3 Kd6 Bf4 exf4 e5+ Kc5 e6 Ng8 Qg4 Kd6 Qe2 Qe8 Qd1 Qd8 Ke2 c5 e8B g5 h4 a5 h6 f6 b6 g4 b7 g3 h7 f3+ Ke3 g2 h5 a4 h6 c4 e7 c3 b4 c2 b5 c1R b6 a3 Bc6 a2 e8B Qc7 Bh5 Rc2 Nh3 Rc5 Na3 Na6 b8Q Nb4 b7 Rc1 Qe8 Rc5 b8Q Rca5 Nc4+ Kc5 d6 Qc8 d7 Nd3 d8N Ne7 Bd5 Qf5 Nd6 Ng6 Qb2 Nf2 Nc8 g1Q Qe6 Rg8 h8R R8a7 h7 Rd7 Qdb1 Rgg7 Rg8 Qh2 h8N Ne4 Nhf7 Nh8 Nfd6 Rg1 Bb5 Bg7 Qf1 Ng3 Rd1 a1Q Qa2 Qc3+ Bd3 Qc4 Ra1 Qg6 Bf5 Qa6 Bfg4 Qf5 Ne8 Qc4 Nf7 Bf8 Ng7 Rb5 Ncd6 Kb6 Nc8+ Kc7 Nfd6 Qb1 Bc6 Rg5 Bd5 Qh7 Qc2 Qg6 Ra6 Qf5 Qa2 Kd8 Nge8 Bh6 Ng7+ Kc7 Qe2 Rg2 Rd1 Rg1 Qf1 Qce2+
N1bq4/2nB1Npn/4Q3/R2K1NQ1/rpQNB1R1/5B1k/q3P1bb/1R5n w - - 0 1 legal: proof: f4 b5 g4 a5 b4 f5 bxa5 d5 c4 e5 fxe5 f4 cxd5 h6 Ba3 Ra6 Be7 Rg6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 Kf7 Kf3 c5 Ke4 f3 d4 f2 h4 g4 a4 c4 h5 c3 e6+ Kf6 a6 Kg5 d6 c2 a5 c1Q d7 g3 d5 Kg4 e7 g2 e8B b4 f6 Qd2 f7 Qa2 d6 Qb3 h6 Qh4 d8R Be6 d7 Be7 f8Q Bc4 a7 Bg5 a8N Bf4 a6 Qhh3 h7 Qbc3 a7 Bf7 Nd2 Kh4 Ndf3+ Kg4 Qe7 Qc5 Qe6+ Kg3 Qdd5 Qb6 Nd4 Na6 Qc4 Nc7 Ngf3 g1N Bg2 f1B Nh4 Qa5 Rb1 Qa2 Bf3 Bg2 Rc8 Bh5 d8Q Bg4 Bd7 Be5 Qg5 Nf6+ Kd3 Rf8 h8N Nh7 Ke4 Qh2 Nhf5+ Kh3 Ra1 Rf6 Nf7 Bg3 Qe5 Ra6 Qee6 Ra4 Rb1 Bd6 Rb8 Bg3 Rb5 Ra5 Qgf6 Bf1 N5h6 Ra4 Bc8 Bf4 Rd5 Kg3 Qee5 Qh5 Ra5 Nh3 Rg1+ Kh2 Qeb5 Be6 Rg4 Qg5 Qe7 Qf6 Qg5 Bg2 Nhf5 Bd7 Qee6 Qd8 Nb6 Bd6 a8B Bg3 Bd5 Bd6 Na8 Nf2+ Ke3 Nh1 Ke4 Kh3 Bdb7 Bb5 Bd7 Ba6 Bd5 Bc8 B5c6 Bf8 Ke5 Be7 Bce4 Bf6+ Kd6 Be5+ Kc6 Bh2 Kc5 Ne8 Kd5 Nc7+
4Q3/3P1q1k/1B1b2r1/1rn1N2N/1r1bRp2/3QQ1p1/BbKB1R1N/3RB2q w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 Bh3 g5 Bg2 f5 Bf1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Ra5 Ne5 Ra2 Nf7 Ra1 Ng5 hxg5 Be7 Rh2 Bd6 Rh1 Bf8 d4 Kf7 Kd2 Kg7 b4 a5 e4 h5 f6+ Kg6 b6 c5 b7 c4 b8R f2 e5 c3+ Kc2 g3 f7 a4 e6 a3 b5 a2 e7 h4 e8Q h3 d6 h2 b6 Ra3 b7 Ra8 d7 Nh6 d5 Qa5 d8B Kg7 d6 Qb5 d7 Rg8 g6 Qg5 Qe3 Bd6 f8B+ Kh8 g7+ Kh7 Bc4 f1Q Nd2 Bc7 Ndf3 Qd5 Bb4 Ng4 Bd2 Qe1 Ne5 Bd6 Ngf3 Nf2 Bb6 Qf7 Rf1 h1R Nh2 Ne4 Rf2 Ra5 Re8 Rb5 b8Q Nc5 Rb1 a1B Ba2 Qf1 Qdf3 Qg2 Rd1 Rg1 Re6 Qh1 Qe8 Re1 Qd3+ Re4 Qfe3 Bb2 Ng6 Rc4 Re4 Rd4 B4a5 Rdb4 Ne5 Ba1 Kc1 c2 Be1 Rh8 g8N Bd4 Kd2 c1B+ Kc2 Bcb2 Nf6+ Kg7 Bd2 Rg8 Nh5+ Kh7 Be1 Rg5 Bd2 Rg6 Be1 Ra4 Bad2 Rab4
Q2q4/1pBb1b1Q/pK4n1/q3Nr1n/5BN1/Q3nR2/1NbkB1PR/2R4Q w - - 0 1 illegal: No proof kernel
2kn3n/1N5r/2KpR1NN/BB2P1n1/1q4p1/QN2B2n/2b1nQr1/3RQ1R1 w - - 0 1 legal: proof: d4 b5 h4 e5 g4 g5 a4 c5 axb5 cxd4 f4 f5 fxe5 Be7 gxf5 g4 Bf4 Bg5 hxg5 Bb7 Bc1 Bc8 Kf2 a5 c4 h5 b4 h4 e4 h3 g6 d3 Ke3 a4 Kd4 d2 Kd5 a3 b6 a2 b7 h2 f6 Qe7 g7 Kd8 f7 Rh6 f8Q+ Kc7 e6 Qf7 c5 Rf6 b5 Rg6 c6 Qf2 e5 Qe1 e7 Rg5 e8R Rh5 Ne2 Rh8 Qa3 Nh6 g8N Rh7 Re6 Nf7 Nf4 Nh8 Rg1 h1N Ng6 Ng3 Nh6 Ne4 b6+ Kd8 Qc2 d1N Nd2 Ndf2 Bb5 Nh3 Nb3 Qb4 Be3 Neg5 Rad1 a1N Qf2 Nc2 Qe1 Nd4 Qf2 Na6 b8B Nc5 b7 Ngf7 Bd6 Ne4 b8Q Ne2 Qe1 Nef2 Qba7 Ne4 Qc5 Bb7 Bc7+ Kc8 Ba5 Neg5 Qc2 Ba6 c7 Rb8 Qf5 Rb7 Qff2 Rb6 Bc6 Bd3 Ba4 Bc2 Bb5 Kb7 c8N d6 Nce7 Kc7 Nc6 Kc8 Nd8 Rc6 Nb7 Rc3 Bd2 Rg3 Be3 Rg2 Kc6 Nd8+
B3n1nN/KqRp2BR/2Nr2Q1/2kN4/2Pb2rr/4p1r1/2N1Rn1Q/6BQ w - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kf2 a5 c4 e5 b4 Ke7 f6+ Kd6 g7 h5 b6 d3 Ke3 d2 b7 a4 f7 e4 Kd4 h4 g6 a3 b5 a2 b6 h3 g5 h2 Nf3 Qe7 Nh4 Nf6 g8R Qd8 g7 Nh7 g6 Qg5 Na3 Qg2 Nc2 Be7 f8B Qg5 Bg2 Na6 b8Q+ Kc6 b7 Bd6 Bb2 Bg3 Bc5 Qh6 Rc8+ Nc7 g8Q Ng5 g7 Ra5 Ng6 Nf7 Qb1 Rh7 Nh8 Ra3 Qe8 d1N g8N Nf2 Nf6 Rg7 Nd5 Rg4 Qg1 Rf3 Re1 a1R Re2 Ra6 Qe6+ Bd6 Qg6 Rfg3 Qa8 Rb6 Qa2 Qf4 Qe1 Qf3 b8N+ Kb7 Ba1 Ne8 Nc6 Nh6 Qb2 Bb8 Rc7+ Ka6 Qg1 Ba7 Qbc1 Ng8 Qch6 Rb3 Bb6 Ra3 Kc5 Rd3 Bg7 Rd2 Qd1 Qb3 Rhe1 h1R Qh2 Rh4 Qc1 Rg1 Rd1 Rd4 Rd3 Rgg4 Rh3 Rd2 Bf3 R1g3 Qch1 Rd1 Nc3 Rd6 Nd5 Rf4 Bg2 Rhg4 Rh5 Rh4 Rh7 Qf3 Kb4 Rfg4 Be3 Bd4 Ka4 Nh3 Bg1 e3 Kb4 Bf6 Kc5 Nf2 Nb8+ Ka5 Nc6+ Ka4 Kb6 Bd4+ Ka6 Qe4 Ne1 Qb1 Nc2 Qb4 Be4 Kb3 Bg2 Qb7+ Ka5 Nd1 Nce7 Nf2 Nc3 Qc8 Ba8 Qb8 Ncd5 Bb6+ Ka6 Bd4+ Nb6 Qc8+ Ka7 Kc3 Na3 Kb4 Nc6+ Kc5 Nd5 Bb2 Nc2 Bc3 Bb7 Bd4 Ba8 Qb7+
k1b1NrB1/B5Rq/Q5R1/1p1R1nN1/1B2p1n1/n1Q3Pb/3n3Q/N1qK2N1 w - - 0 1 legal: proof: g4 d5 c4 b5 cxd5 g5 f4 f5 gxf5 g4 e4 g3 e5 g2 f6 Kd7 f5 a5 b4 Bg7 f7 Bf6 exf6 axb4 Bc4 Ra3 Bf1 Rg3 hxg3 Ba6 Qc2 Bb7 Qd1 Bc8 f8Q h5 a4 e5 d4 c5 f7 Kc7 d6+ Kb7 d7 e4 a5 c4 d5 b3 a6+ Ka8 d6 c3 a7 h4 f6 b2 Qd2 h3 Ra6 c2 Na3 b1Q Qc3 h2 Bc4 Qe7 d8N Qe8 d7 Rh7 Qd6 Qb4 f8B Rf7 Ne6 Nh6 d8R Qb1 Ng5 Qb2 Be3 c1N Kd1 Ne2 Nc2 Nf5 Na1 Nd7 Be7 Rf8 Bg8 Qh5 f7 Qh8 Qg6 Qh7 Bb4 Nf6 Rd5 Ng4 Rf6 Re8 f8Q Ned4 Qfh6 Rf8 Qgh5 Nc2 Rg6 Na3 Bb6 Kb7 a8N Kb8 Nc7 Kb7 Ne8 Ka8 N1h3 g1N Ba7 Nf3 Ng1 Nd2 Rg7 Rf7 Qa6 Rf6 N1f3 Rf8 Rf1 h1B Qh2 Bg2 Ng1 Bh3 Rf2 Nd6 Rf6 Nf5 Rfg6 Qc1+
3K4/Nr1BQ1P1/bNnn2BQ/8/1B2N3/1q1Rp2R/p1bqR2b/B1Q3bk w - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 b4 e5 g7 c5 d6 a4 d5 a3 g6 c4 d7 h6 b6 c3 d6 c2 f6 a2 b7 h5+ Kg5 h4 b5 h3 b6 f3 Ba3 c1B+ Nd2+ Ke3 Bd3 Kf2 Ne2 Kg2 Nc3 e4 Nb5 e3 Na7 h2 Bb4 f2 Ne4 Nc6 b8B f1B b7 Ba3 Qc1 Nh6 g8B Qb6 d8R Ne7 f7 Qb5+ Kf6 Qa4 d7 Be2 Be5 Qb5 b8N Nc6 g7 Bd6 f8Q Qb6 Qe7 Nf5 Be6 Ba6 Rb1 Qa5 Ba1 Bd1 Rb2+ Bc2 Kf7 Rh4 Ke8 Qd5 Qf6 Qb3 Qh6 Bg3 Nd6 Bf2 Ne4 Bb1 Re2 Bc2 Rc8 Rg4 d8Q Nd6+ Kd7 Rf4 Qe7 Rf7 Rd8 Bb2 Kc7 Be5 Nd7 Bf4 Nb6 Bg3 Rhe1 h1Q Bd7 Bh2 Rd1 Qg1 Rh8 Qe1 Rdd2 Kh1 Rd1 Ne5 Kd8 Bg1 Rdd2 Bd1 Bb1 Bc2 Rd3 Qf2 Qhg5 Qe1 Rh3 Qd2 Qh6 Nc6+ Kc7 Rf5 Rc3 Re5 Nd5 Bb5 Ng5 Bd1 Bg6 Bc2 Ne4 Ba6 Rd3 Nb8 Kd8 Rh5 Ndc3 Rb5 Na4 Rb7 Nb6 Nc6+
5nBB/Nn4R1/Q1r1RbpB/Nb3B1p/3Q4/1r2Pk2/2NKR1bb/1n5Q w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 f5 g4 g6 gxf5 Ba6 h5 Qd7 h6 Qg7 hxg7 Bc8 b4 Ke7 d4 Kd6 b6 h5 b7 a5 e3 c5 b5 a4 b6 a3 f6 c4 f7 c3 Bh3 a2 Bf5 c2 Na3 f3 Kd2 f2 Nc4+ Ke7 d6+ Kf6 d5 Kg5 d7 f1B d8R Ra7 d6 Ra4 d7 Na6 b8N Bd3 b7 Nf6 g8B Be4 Re8 Ra5 d8Q Ra3 Nc6 Bg2 b8Q Rb3 Qa8 Bd6 f8B Nc5 Na7 Ba6 Re6 Bb5 Rh2 Nb7 Bb2 c1N Na5 Ne2 Qe1 Be5 Qd4 Nc3 Ne2 Nd7 Qh1 Bf6 Rc1 a1B Qc8 Rh7 Qc6 Re7 Qa6 Rf7 Bg7 Nf8 Bh8 Rc7 Ba3 Nd7 Bf8 Rc6 Rf1 Be5 Rf4 Bb8 Rfe4 Be5 Re7 Bf6 Rg7 Bb2 Re6 Ba1 Be4 Kg4 Bf5+ Kf3 Nc1 Rb1 Nd3 Rb3 Nb4 Be5 Nc2 Bf4 Be7 Nf8 Bg5 Bc7 Bh6 Bd6 Rh4 Bh2 Rf4+ Kg3 Rf2 Nb1+ Ke1 Bb2 Re2 Kf3 Kd1 Ba3 Ke1 Be7 Kd1 Bf6 Ke1 Nc3 Kd2 Nb1+
1rnqQ2K/2nB4/6Q1/Br1r2Np/PR1p1r2/Q3Q1N1/1N5k/RRBr2q1 w - - 0 1 legal: proof: f4 g5 b4 f5 e4 a5 exf5 g4 d4 b6 h3 Bb7 f6 c5 dxc5 axb4 g3 Bh6 f5 Bf4 gxf4 g3 Ne2 Bf3 Ng1 Bg4 hxg4 Ra5 Be3 Ra7 Bc1 Ra8 Ke2 Kf7 Ke3 d5 Kd4 h5 Ke5 b3 a4 b5 c4 g2 g5 e6 g6+ Kf8 c6 b4 c7 d4 c8Q b2 f7 Kg7 f8N Kh6 f6 b3 f7 Qb6 c5 Rh7 g7 Ra7 c6 Rd7 c7 Qa6 Qe1 Qa7 Nc3 b1R Bb5 b2 Nd1 Qa5 f5+ Qd2 f6 Kg5 Ne2 Kg4 Ng3 g1R Qe8 Ne7 c8R Na6 Rc4 Nc7 Qe3 Qa5 Rb4 Nc8 g8Q+ Rg7 Nh7 Rd5+ Ke4 e5 f8B Rg5 f7 Rf1 Qg6 Qb6 Rg1 Kh3 Bd7+ Kh2 Bh6 Qf6 f8Q Qd8 Qff3 Rg4+ Kf5 Rh4 Bf4 e4+ Be5 Re1 Ng5 Rg4 Qa3 e3 Qe4 e2 Qee3 Nb5 Ke6 Nc7+ Kf7 Rf4+ Kg8 Ref1 Kh8 e1Q Bd6 Qf2 Bc5 Re1 Bb6 Qf1 Nf2 Rd1 Ba5 Qg2 Re1 Qh1 Nd3 Qg1 Bd2 Rbc1 Rf1 b1R Nb2 Rcc5 Bc1 Rb5 Nc4 Rb3 Nb2 Rdd3 Bd2 Rb8 Rfb1 Rbb5 Bc1 Rb8 Rc4 R3b5 Rb4 Rd1
4QB1r/rQb1K1R1/2rn3R/QnBP4/B4p2/NNN5/B1R2p2/r4knn w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 h3 g5 Qc2 f4 Qd1 Bf5 gxf5 g4 Ra3 g3 Ra6 Qg5 Ra1 Qg4 hxg4 Bc5 Ra2 Bb4 Ra1 Bf8 d4 Ke7 Kd2 Kf6 Kd3 Kg5 Kc4 a5 b4 h5 e4 c5 f6 h4 b6 a4 b5 h3 b7 Kh4 b6 h2 f7 g2 g5 Kg3 g6 Kf2 d6 a3 Kd5 c4 Ke6 c3 g7 a2 d5 c2 e5 Rh3 d7 Rh8 d8Q Ra3 Qe2+ Kg3 Be3 c1N Bc5 Rd3 Na3 Be7 f8B Nb3 Rc1 a1R Rc2 Na6 b8Q f2 b7 Nf6 g8R+ Ng4 Qa5 Bd8 Rg7 Bc7 Ke7 Nd2 e6 Nc4 Qa7 Rf3 b8N Nd6 Nc6 Rc3 Nd4 Ra2 Nb3 Ra1 Bd4 Rc6 Bc5 Ra2 Qb7 Ra1 Nf3 g1R Ng5 Ne5 Qeb5 Nf3 Bc4 Ra2 Ne4+ Kh3 Nc3 Rga1 Rhg1 h1N R1g6 Ng1 Rf6 Ng3 Rh6+ Kg2 Qba4 Rb6 Qe8 Rc6 Ne2 Kf1 Nc3+ Ke1 Nd2 Nh1 Bb3 Rb2 Ba2 Rb4 Nb3 Kf1 Kf6 Ra4 e7 Nf3 Qf7 Ng1 e8B Bb6 Ke7 Nc7 Bd7 Ncb5 Qe8 Bc7 Qb4 Ra7 Qa5 Rca6 Bc6 Nd4 Ba4 N4b5 Rf6 Rb6 Rh6 Rc6
1b4k1/1RRP2B1/bBnRq1N1/1N1Nn2r/r3Q3/1pp2N2/2pBQ2K/2b2Q2 w - - 0 1 legal: proof: e4 d5 b4 b5 g4 f5 exf5 a5 bxa5 h5 gxh5 b4 c4 Qd7 Be2 Qb5 cxb5 Kd8 Bd3 Ke8 Bc4 dxc4 Kf1 Kf7 Kg2 c5 f4 g5 h4 e5 d4 c3 a4 c4 h6 e4 h7 b3 d5 c2 a6 c3 f6 g4 a5 e3 a7 g3 b6 e2 d6 e1B f5 Nh6 b7 Nd7 b8R Bf2 h5 Ba6 Qe2 Nb6 d7 Nc4 Nf3 Nb2 Rd1 Be7 Rb7 Bd4 Bd2 Bec5 Na3 Be7 Nb5 Kf8 f7 Ng4 h6 Rb8 a8Q Rg8 h8N Bd6 h7 Bg1 Ng6+ Kg7 h8B+ Kh7 f8Q Na4 f6 Ne5 f7 Nc6 Bd4 Be3 Bb6 Nc5 Ra4 Bef4 Rc4 Nd3 Kh3 g2 Rc5 Nce5 Rcc7 Be3 Kh2 Nb4 Bc1 Re8 Bd2 Re6 Qae8 Rf6 Qe6 Rf5 Q6c4 Bh6 Qa8 Rh8 f8B Nbc6 Bg7 Rf4 Qf1 Re4 Qce2 Ra4 Qe8 Ba3 Qe7 Bc1 Qh4 Kg8 Qhe4 Rb4 Bde3 Ra4 Rd6 Kh7 Bd2 g1Q+ Kh3 Qg4+ Kh2 Bg5 Rb8 Bc8 a6 Qe6 a7 Ba6 a8N Bh6 Rbb7 Kg8 Bbe3 Rh7 Nb6 Rh8 Nd5 Bf4+ Kg2 Rh5 Bf2 Be3 Kg1 Ba7 Bb6 Bb8 Kg2 Rf5 Kh2 Rh5+
2RB3N/p4P1k/QK2R3/4N3/B1R2bBq/4p1np/rN2n1rQ/2bR1Qn1 w - - 0 1 illegal: Other
BQN2n2/Rb1K2b1/n1B2q1p/1N1Q2B1/1p6/r1Nn2R1/1kPp4/2qRQ2Q w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 b4 axb4 f3 Ra4 f4 Ra8 fxg5 b5 h4 Qc7 g4 Qb7 g6 Ra4 h5 Qc7 g5 Ra6 g7 Rg6 hxg6 Qd8 Ke2 e5 Ke3 Ke7 Ke4 h6 Kd5 d6 a4 e4 a5 e3 f6+ Kd7 c6+ Kc7 f7 e2 a6 Kb6 c7 e1N a7 b3 Ne2 b4 Bg2 Kb5 Na3+ Ka4 Nc3+ Ka5 Nab5+ Kb6 a8Q Ba6 Ke6 Nf6 g8B d5 g7 d4 g6 b2 Bh7 b1Q g8Q d3 g7 Qb2 Bhe4 Nfd7 Bf4 d2 Qe2 Bd6 f8Q Nd3 Rhd1 Qc1 Qe1 Be5 Qgf7 Bd4 g8R Qh4 Rg5 Bg7 Rg3 Bc8 Kd6 Qf6+ Qe6 Rg8 Bg5 Rh8 Qe8 Ba6 Qh5 Rc8 Qhh1 Nf8 Na2 Ka5 Bd5 Nbd7 Qb8 Ka4 Ba8 N7c5 Bge4 Bb7 Bd5 Nf4 Be4 Re8 c8N Rd8+ Kc7 Rd3 Bc6 Rc3 Qg8 Nfd3 Qgd5 Rb3 Nbd6+ Ka3 Nc3+ Kb2 Ra7 Ra3 Ndb5 Qg6 Kd8 Na6 Ke7 Qf6+ Ke8 Ng6 Kd7 Nf8+
2R2R1q/KbQ3B1/3r2pp/1B1N1Q2/n1pq1b2/5Q2/Nk2PRB1/2br1Q1N w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 h4 f5 gxf5 Nc6 h5 g6 h6 Nd4 Na3 Ne6 Nb1 Ng7 hxg7 Qg5 Bh3 Qe7 Bf1 Qd8 Kf2 Kf7 b4 Kf6 d4 c5 b6 a5 b7 a4 b8Q f3 Ke3 h6 d6 a3 d7 f2 d5 a2 d6 Ke5 f6 Qa5 d8Q Ra6 f7 Rh7 b5 Rh8 d7+ Bd6 f8Q Bb7 b6 Bf3 b7 Ra8 Nc3 Be4 Qbc7 Bc2 b8N Qb5 Bb2 Qb7 Rc1 a1B Qf3 Qa7 Bg2 f1Q Rh2 Ba4 Nh3 Qh1 Qdf1 Ne7 g8B Qg1+ Nf2 Nc8 Qdf8 Nb6 d8R Bc6 Bc4 Na4 Na6 Bb7 Bb5 Qb8 Nb4 Ra6 Nba2 c4 Rc8 Rh7 Re1 Rd7 Nd5+ Ke6 Kd4 Bf4 Bc3 Bb2 Rb1 Rad6 Rc1 Nb6 Kc5 Rd8 Rd1 Bbc1 Bg7 R8d7 Rd4 Qa8 Nh1 Na4+ Kb4 Qb8 Ka5 Qe3 Rd1 Qd4 Rd2 Qf6 Rd3 Ke5 Re3+ Kd4 Ree8 Qe5 Qf5 Rd8 Rf8 Qf6 Bh3 Qe5 Rf2 R8d7 Nf6 Rd8 Bg2 Qe3 Nb4 Kc3 Na2+ Kb2 Nd5+ Qd4 Q5d3 Bc6 Ka6 R8d7 Rce8 Qd8 Qf5 Q8f6 Rc8 Qfe5 Qb6 Bb7+ Ka7 Qe8 Rf7 Qh8 Rff8 Re7 Qc5 Re3 Qb6 Rd3 Qc5 Rd1 Qb6 Qe5 Qc7 Qd4+
2n1B3/1rkPQ1RQ/3RK3/2NQ3N/1qnRp3/1Q1B1p2/1p4b1/q1Br2nN w - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 a5 exd5 h5 c4 h4 d4 h3 b4 axb4 c5 Bg7 gxh3 Nh6 h4 Be5 h5 Bd6 cxd6 Ng8 Kd2 Kd7 Kd3 c5 Kc4 e5 a4 f5 h4 e4 a5 b3 g6 b2 g7 b6 a6 f4 a7 f3 h6 Qg5 h7 Qf6 h5 Qf4 h6 Qh4 Nc3 b1Q Qb3 Qf4 Nge2 Qf6 Ng3 Qb2 Na4 Qe7 Rg1 Qf8 Nh1 Kd8 d7 Nc6 Bd3 Kc7 d8Q+ Kb7 d6 b5+ Kd5 b4 d7 c4 Ke6 c3 d5 c2 d6 Nge7 g8Q Qf4 Rg7 Ne5 Nc5+ Kc6 Ra4 Rb8 a8B+ Rb7 Qgf8 Rg8 h8Q Qd2 h7 Nc4 Qf5 Qa1 Qd5+ Kb5 Qc7 Rd8 Qg8 Qdc3 h8N Qcb2 Ng6 Qba3 Qb2 b3 Nf4 Qb4 Qf6 b2 Nh5 Rb8 Qh7 Rb7 Qb8 Kb6 Qfg5 Nc6 Qe7 Na7 Bd2 c1N Be3 Ne2 Bc1 Ng1 Ra6+ Kb5 Rc6 Ka5 Rb6 Rc7 Bc6 Ba6 Ba4 Nc8 Bb5 Rb7 Bc6 Rg8 d8R Bb5 Be8 Bd7+ Kf6 Bh3 Kf7 Bg2 Ke6 Qba4 Rb4 Qb5 Ra4+ Kb6 Rd7 Ne3 Rd4 Qb4 Qb3 Nc4 Qa8 Rb8 Qd5 Rf8 Ra7 Rb7 d7 Kc7 Ra6 Rf4 Rd6 Rh4 N1g3 Rh1 Rg5 Ne2 Rg7 Rd1 Nh1 Ng1
6nq/2KNB2N/B3RbBn/1bBp3r/3QPNQ1/3R1pb1/RbQ2p2/5k2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 b5 dxc5 e5 a4 Na6 f4 exf4 axb5 a4 Qd6 Nb8 Qd1 Ra5 bxa5 Qc7 Be3 Qb6 Bc1 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 Kg4 h4 Kg3 c4 Kf2 e4 f5 a6 g5 b6 f3 a7 f4 a8R d6 c6 g4 c7 a3 h6 a2 h5 g3 b7 g2 c5 Rh7 c6 Bh3 c8Q Qb6 c7 Bd7 Nc3 Qe3 Nh3+ Kg3 Ba3 g1B Bc5 f2 Ra3 f3 Nf4 Bh2 Ba6 Bf5 Qc2 Rh8 h7 Qe1 h6 Nc6 b8N Qf1 Nd7 Nd8 Rb3 Nb7 Kc6 Qd1 Ncd5 Qd3 N5f6 Qc4 Rd3 d5 Rhb1 Nd6 Rb6 Nf7 Kb7 Bg4 Re6 Bg7 Kb8 Ne7 Qg8 Bh3 c8B Qd4 Kc7 Bg2 Rb1 a1B Rb2 Bf1 Ra2 Ne5 Kd6 Ng4 Kc7 Bf8 Qg5 Bg7 Qh5 Bb2 Qf5 Rd8 h8Q Ng8 Nh7 Bf6 Qg7 Re8 Qe5 Qc3 Qd4 Rd8 Nh3 Kg2+ Nf4+ Kg1 Qg5 Bg3 Qf5 Ne3 Qg4 Re8 Ng5 Re7 h7 Nf5 h8B Nfh6 Nh7 Be2 Bg7 Kf1 Bf8 Rg7 Be7 Rg5 Nb8 Rf5 Bd7 Rh5 Be8 Rh3 Bg6 Rh5 Re3 Bd3 Nd7 Bb5 Rd3 Bfh4 Qe3 Qh8 Qd4 Bf6
4B1Q1/1R1r2p1/5qK1/N1Qn3r/1b3p1k/3BPpR1/rQR1R1n1/BNN1r3 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b6 h5 gxh5 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Qg5 Bg2 Qf6 Bf1 Qd8 Kf2 Ke7 Kf3 Kf6 Kg4 c5 d4 a2 h4 f3 h6 c4 Kh5 c3 b7 c2 d6 Ne7 h7 Nf5 a5 Rg8 h8Q Ne3 d5 Ng4 e3 Qb6 a6 Ra7 d7 Qb3 d8R Ne5 d6 Qa4 d7 Kf5 Qd5 f6 Rh3 Qb4 Qc5 Qa3 Bd3+ Ke6 Ne2 f5 Rg3 Kf6 Rc8 f4 d8N Qa4 Nc6 Ng6 Na5 Qd4 Bb2 Qc3 Nc1 Ra8 a7 Nc6 b8R Nb4 Rb7 Rb8 a8B Nd5 Qh7 Bd6 Rcc7 Rgd8 Qg8 Rd7 Rc8 Ke7 Kg5 Qd4 h5 Nh4 h6 Ng2 h7 Qc3 Kh5 Kf6 Rc6 Re8 h8Q Re4 Qb8 Rb4 Qhg8 Rb5 Ncb3 c1R Rc8 Re1 Nc1 Ke7 Kg6 Qd4 Qa3 Bb4 Rc2 Nf6 Bc3 Rh5 Qa7 Nd5 Qb2 Kd6 Qc5+ Ke5 Re2 Rh8 Nd2 Rh5 Rb1 a1R Rc7 Rf7 Bc6 Ra2 Be8 Re7 Qb3 Rd7 Ba1 Qc3 Rb2 Qd4 Rc2 Qc3 Qb2 Qd4 Qh8 Qc3 Rb7 Ke6 Qh6 Qf6+ Kh7 Qg6+ Kh8 Qf6 Qh7 Qe5 Nb1 Kf6 Kg8 Qd4 Kf8 Qc3 Qg8 Qd4 Rh3 Kg5 Rg3+ Kh4 Nc3 Qe5 Nb1 Rd8 Kf7 Rd7+ Kg6 Qf6+
4b3/b1p1BqpN/1Q1B1r1N/2NB3R/B3p3/r1r5/2R2Q1P/RK1krn1Q w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 f5 e4 d5 exf5 b5 cxd5 Nc6 axb5 a4 Bh3 Rh6 Bf1 Na5 bxa5 Rh8 f4 Kf7 d4 Kf6 Kd2 e5 Kc2 g3 b6 e4 a6 g2 b7 a3 b8Q a2 a7 Be6 d6 Qc8 d7 Qa6 d8N Qa5 d5 Qb6 d6 Rh4 d7 Qb7 Nh3 g1R Bb5 Bd6 Ba4 Ne7 Ng5 Re1 Ndf7 Bb4 d8R Qc8 Ba3 Ba5 Nc3 Ng8 Nh6 Rf1 Bd6 Rh5 Qb6 Ne7 Rh8 Qe8 Qdb1 Rf3 Rc1 Bf7 Kb2 Nd5 Rc2 Rhh3 Qh1 Qd7 Rh7 Rf8 a8B Ne3 Bd5 Nf1 Re1 a1R Qb7 Rh4 Ne2 Rd3 Nc1 Rd1 Nd3 Qe6 Nc5 Bg6 Nhf7 Rdc1 Rh5 Rd1 Nh6 Bb6 Qc6 Ba7 Qb6 Rd3 Rd1 Raa3 Ra1 Rhh3 Kb1 Rde3 Be5+ Ke7 Nh7 Be8 f6+ Kd8 f7 Ke7 f5 Re1+ Kb2 Rhc3 Bf4 Bc6 Bg5+ Kd6 Be7+ Ke5 f6+ Kf4 Bd6+ Ke3 Be7 Rh8 f8Q Be8 f7 Qf6 Rcc1 Kd2 Kb1 Ree3 Rc2+ Kd1 Bd6 Rg8 Qe7 Qf4 f8B Re1 Qh4 Rh8 Bfe7 Rf8 Qf2 Qf6 Nb7 Qg6 Nc5 Rf6 Qb3 Qf7 Qb4 Qg8 Qb6 Qf7
bK6/2R1bn1k/1RQ2BR1/4BP2/p1p1BB1N/1n4b1/2q2pnN/3qNQQ1 w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 g5 h4 gxh4 Qb3 f4 Qd1 Ra7 f3 h5 Bd3 e5 Be2 Ra6 Bf1 Rf6 Ne2 Rf5 exf5 e4 Ng1 e3 Rh3 Rh6 Rh2 Re6 Rh1 Re4 fxe4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kf7 Kd3 Kg7 Kd4 c5+ Ke5 a4 d4 h3 g4 h4 b4 c4 b6 f3 b5 h2 g5 f2 b7 e2 g6 e1B b6 h3 d6 Bb4 d5 Qd7 Bf4 Qc7 Bg2 Bc5 Nf3 Nh6 Ne1 Qd8 d7 Ng8 d6 Bb4 Nd2 Ba3 Ndf3 Nh6 Nh4 Qc7 d8Q Bc5 Qd7+ Be7 Qc6 Kh8 g7+ Kh7 g8R Bd7 Rg6 Bd8 Rb1 Na6 b8Q Ng8 b7 Be3 Rb6 Bg5 Qe8 Bd8 b8B Qb7 Bf3 Bc8 d7 Qa8 Kd6 Nc5 e5 Be7+ Kc7 Bb7 d8B Nb3 e6 Nh6 Be4 Nf7 Qg4 Qa5 Qg1 Qc3 Qed7 Qb2 Qd3 Ba8 Qdf1 Qc2 Kc8 B3c5 Bbe5 Bed6 e7 Bc7 e8N Be7 Qgg2 Bcd6 Rg1 h1Q Qg4 h2 Nf6+ Kh8 Qg3 Qf3 Ng4+ Kh7 Rg2 h1N Nh2 Qfd1 Qg4 Ng3 Rg1 Bf8 Bdf6 Bfe7 Rh1 Ne2 Qgg1 Bb4 Kb8 Bc3 Bh6 Nf4 Bhg5 Ng2 Bgf4 Bb2 Bh6 Bc1 Ng4 Bf4 Rh3 Nd8 Rd3 Bb4 Nh2 Be7 Rd7 Bg3 Rc7 Nf7 Bhg5 Bb7 Bgf4 Ba8
3b4/3Qb2B/n2P3K/QR6/bq1NN2N/3ppR1n/RBQ2p1B/q2qBk2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 d5 axb5 h5 gxh5 d3 f3 g5 Ra4 a5 Ra2 e5 Ra1 d4 Qe2 Ra6 Qd1 Rd6 f4 Rd5 exd5 e4 Be3 Rh6 Bd2 Re6 Bc1 Re5 fxe5 Qc7 Ra3 Qd7 Ra1 Qd8 Kd2 Kd7 b4 f5 c4 f4 h4 a4 c5 a3 h6 f3 h5 a2 h7 g4 h8N g3 c6+ Ke7 h6 g2 c7 f2 e6 Kd6 b6 Ke5 b5 Kf4 b7 Kg3 h7 Ne7 b6 Qd6 Qc2 Qa3 Ne2+ Kf3 Bb2 g1B Rh3+ Kg4 Ng6 Ng8 h8B Qb3 e7 Qa4 e8Q Qd7 Nbc3 Qa4 Rf3 Qa3 Qea4 Qc5 Nh4 Be6 c8Q Nf6 Qa5 Be7 Qd7 Na6 b8R Qb4 b7 Nh5 Bg7 Bh2 Bh3+ Kg5 Bf5 Bc7 Bh7 Kg4 Be5 Bcd8 Bh2 Ng3 d6 Kh3 Ra8 Qc5 b8B Qb4 Rb1 a1Q Bc7 e3+ Kd1 Kg4 Ne4 Nh5 Bb6 Nf4 Bc5 Qba4 Bb4 Nh3 Be1 d2 Ng1 Q4a3 Ke2 Qb4 Kd3 Bf8 Ne2 d1Q+ Nd2 Bg7 Ke4 d3+ Nd4 Bf8 Ke5 Bfe7 Ne4 Kh5 Ra7 Bb3 Kf5 Ba4 Rb7 Qa2 Ra1 Qab1 Ra2 Qa1 Ke6+ Kg4 Rb5 Qbd2 Rff5 Qb4 Kf7 Ng5+ Kg7 Kh3 Ng6 Kg2 Nh4+ Kf1 Kh6 Nh3 Rf4 Bb3 Rf3 Ba4
1k4B1/1p1pr2B/PNr1Q1Bq/N1B2n2/n1QR1K2/r4N2/p1R2rrR/Q7 w - - 0 1 illegal: No proof kernel forced: wxLB
RQ2n2b/Kn1bR3/3PN1B1/NBp2Q2/2r2pNn/1b2n3/3Rp1k1/BR1Q4 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 e4 Ke7 h4 gxh4 d4 Nd7 d6+ Kf6 d5 Ne5 d7 Nc6 d6 Nb8 f4 a5 Qf3 e5 Rh2 Ra7 Qd1 Qe8 Rh3 Qe6 Rh1 Qd5 exd5 e4 Rh3 Ra6 Rh2 Rc6 Rh1 Rc3 Rh3 Kg6 Rh1 Rg3 Qd2 Rg5 Qd1 Re5 fxe5 Bh6 Qe2 Bg7 Qd1 Bf8 Kf2 Kf5 Ke3 h5 Kd4 a4 Kc5 a3 d8R f6 b4 h3 g4+ Kg6 e6 h2 e7 a2 e8B+ Kg7 g5 c6 Kb6 f5 d7 f4 g6 Kf6 g7 Ke5 Bg6 e3 Nd2 h4 Nh3 Nf6 g8R Na6 Rg7 Ne8 Nb3 Nc5 Na5 Nb7 Nf2 h3 Ka7 c5 Rh7 Bg7 b6 Rg8 d6 Bh8 Rb1 a1N Bb5 e2 Rg7 Nc2 Bb2+ Nd4 Re1 h1N Ba1 h2 Re7+ Kd5 Rf1 Ng3 Ng4 h1B Rb2 Nf5 Rd2 Nh4 Rg1 Nc7 Rf8 Bg2 d8N Bd7 Ne6 Ne8 Rf1 Be4 Re1 Bc2 Rg1 Nf6 Ra8 Bb3 Rh1 Ne8 Rf1 Nd8 b7 Rg7 b8Q Nb7 Qc8 Rf7 Bh5 Ke4 Bg6+ Rf5 Rg1 Kf3 Rh1 Nc2 Re1 Ng7 Qf8 Re5 Qf5 Kg2 Qb1 Nd4 Ba4 Rd5 b5 Nd8 b6 Nc2 b7 Ne3 b8Q Nb7 Bb5 Ne8 Qbc2 Re5 Rb1 Re4 Qd1 Rc4
2r1R3/1BnB3p/2qQ2N1/5R2/1QpNn2q/p1B1kNR1/K2nPr2/1n2QQ2 w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kb3 Kd7 d4 Kd6 b6 c5 g5 a5 f5 c4+ Ka2 a4 b4 g2 g6 a3 b7 Qg5 b5 Qf6 g7 Qf8 f6 Qc8 b6 Qf5 f7 Nf6 g8B Ne4 f8N Qd7 Bb2 Nd2 Bc3 Na6 b8Q+ Nc7 b7 Qa4 Rh5 Ra5 Rf5 Qd7 Ng6 Qb5 Be6 Rg8 Qe1 Rc8 Bd7 Ne4 Nd2 Ra7 Nb3 Rh8 Qa8 Ng3 b8Q Qc5 Qb4 Ra5 Rd1 Ne4 Rd3 Rf8 Qe8 Ra8 Qf7 Rac8 Re3 Nb5 Qf6+ Kc7 d6+ Kb6 d5 Qc6 Nd4 Rf7 Nh3 g1Q Ng5 Qh1 Bg2 f1N Rd3 f2 Rg3 Qh4 Ngf3 Rff8 Ng1 Qf4 Rfg5 Nh2 Bdh3 f1N d7 Nc5 d8R Qcd6 Nc2 Qh4 Re8 Nf3 Rge5 Qe6 d6 Kc6 d7 Nc7 d8Q Qd6 Re3 Kd5 Nd4 Rf7 R3e7 Rf8 Be6+ Ke4 Rf7 Ke3 Qf5 Qa6 Qd6 Qb6 Bd5+ Ne4 Bh3 Qa6 Bb7 Qc6 Qff6 Nd2 Bd7 Nb1 Qf5 Qe7 Qh3 Qh4 Qhf1 Qg5 Rf5 Qh6 Rfe5 Rf4 Rf5 Qh4 Rg2 Nfd2 Rg4 Rf2 Ngf3 Na6 Rg3 Nc7
R4b2/Nq1rB1k1/QK1Q1R2/3bN1p1/pN3Bp1/2n2Q2/3NBpP1/1Rn3q1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 h5 a4 b5 axb5 e5 f4 Na6 fxe5 Nb8 Qc2 a4 Qg6 Ra5 Qg4 hxg4 bxa5 Qg5 Ba3 Qf6 Bc1 Qd8 Kf2 g5 Ke3 c5 h4 f5 d4 Kf7 h5 c4 h6 c3 h7 c2 e6+ Kg7 e7 Kf7 e8N Be7 b6 Bf8 b7 Ba3 d6 Bb4 d7 Nc6 b8Q Ne5 d5 f4+ Kd4 f3 e4 f2 d6 Qe7 d8N+ Kf8 d7 Nc4 e5 Na3 e6 Be1 a6 Nf6 a7 Bb7 a8Q Rg8 h8R Ne4 R1h6 Bc6 Qd6 Ng3 Kc5 Ba5 Nc7 Nh1 Nd2 Bb4+ Kb6 Bf3 Qa6 Bd1 Be2 Kg7 Rb1 Qf6 e7 Qa1 e8Q Ng3 Rf6 Nb5 Nd5 Nc3 Qe3 Re8 Qe4 Re7 Nc6 Ba3 d8B Rd7 Na7 Bb4 Bc4 Bf3 Be7 Nge2 Ra8 Ba3 Qd3 Be4 Nb4 Bd5 Nbc6 Bb4 Ngf3 Ba3 Nfe5 Bb4 Bb2 c1Q Qf3 Qg1 Ba3 Nc1 Be2 Qa2 Bb2 Qc4 Ba1 Ba3 Nb4 Qc8 Bb2 N3a2 Bd4 Nc3 Be3 Bb2 Nbd3 Qh2 Bd8 Bg8 Bf4 Ba3 Qd4 Bf8 Be7 Qg1 Qd6 Bd5 Nb4 Qb7+
1Q1Rn1nB/n1Q3Nn/2K3B1/2NR3r/n1bP4/b1Qr1k1b/1B1RN2q/2Q2r2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 a5 g4 e5+ d6 h5 d4 a4 b4 a3 b6 h3 f6 h4 b7 h2 g5 a2 f5 h3 g6 Nc6 b8R Ra3 g7 Rh5 f7 Qh4 f6 Na7 b5 Rd3 Ne2 Kf3 b6 c6 b7 e4+ Kb6 e3 d7 c5 d8Q c4 Qc7 c3 Bb2 c2 Nbc3 c1R Ne4 Ba3 f8B Be6 f7 Bc4 Rg1 h1N Nc5 h2 Rd8 Ng3 b8Q h1B Rg2 Nf5 Rd5 Rb1 Qc1 Qh2 Be7 Nd6 f8N Ne8 Nfe6 Rd1 Qc3 Rd3 Bf6 Rc1 Rb1 a1N Qbc8 Nb3 Ra1 Nh6 g8Q Rcd1 Qg5 Ng8 Bh8 Re1 Ng7 Red1 Nce6 Nc5 Q8b8 Na4+ Kb7 Re1 Nc5 Red1 Ra2 Rc1 Rg4 Bg2 Re4 Rb1 Re6 Ra1 Red6 Bh3 Rd8 Re1 Bc1 Red1 Rd2 Re1 Bb2 Ra1 Nf4 e2 Qh6 e1N Ne2 Kf2 Qhc6 Nf3 Bg2 Ng5 Be4 Nh7 Qh6 Ba2 Bg6 Kf3 Qg5 Rh1 Qg1 Bc4 Qgc1 Nb5 Kc6 Rd1 Kb7 Rf1 Kc6 Na7+
Q1R1b3/rnQ3B1/RQb2Bb1/1R1N3P/2Nr1b1b/K1NB4/2Qnq1k1/4r1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 Ke5 h6 c5 h7 f5 d3 g5 Kd2 a5 Kc2 f3 Kb2 g4 b6 f4 b5 f2 d6 c4 h5 f3 d7 c3+ Kb3 c2 b7 g3 b6 g2 Na3 Na6 b8R Ra7 b7 Qe8 d8Q Be7 Ne2 g1N Qb6 Bf5 Bg5 c1B Rc8 Nf6 Nc3 Bf4 Qc2 Bg6 b8N Rg8 h8B a4+ Kb2 Nc5 Bg7 Kd4 e5 Ke3 e6 Ne4 d4 Nd2 Nc6 Nb7 Bd3 f1B Nc4+ Kf2 d5+ Kg2 d6 f2 d7 a3+ Ka2 Be2 d8Q f1B B5f6 Bf3 Nb4 Bc6 Nbd5 Rh8 Qdc7 Rf8 Bd4 Bh4 e7 Rf6 Rh3 Rd6 Bdf6 Be2 Re3 Bg4 Re5 Bgd7 Nb4 Rd4 Nbd5 Qf7 e8Q Qe7 Rf5 Qe2 Qf8 Nf1 Kb3 a2 Qa3 Bde8 Qaa6 Na5+ Ka3 Nd2 Qab7 Ra6 Qa8 Ra7 Nb4 Nb7+ Ra5 Bge4 Nbd5 Bh7 Rb1 Bhg6 Rb5 a1R+ Qa2 Qe6 Ra6 Re1 Qc2 Qe2
3BR1RQ/1r3n1r/bPK1B3/4N1nQ/2B4R/2Qqkr2/3nN2N/bR1b1bb1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 a5 g4 e5+ d6 h5 d4 c6 b4 h3 b6 a4 g5 h2 b5 a3 g6 a2 b7 h4 d5 h3 b6 Ra3 g7 Rf3 f6 Rh7 f7 Nf6 Nd2+ Ke3 g8B e4 Rb1 a1B f5 Bg7 f8Q Nbd7+ Kb4 c5+ Kb5 c4 b8Q c3 Kc6 c2 Qc7 Bd4 Ne2 Ba6 Be6 Ba1 Ba3 c1N Qh8 Nb3 Bb2 Bf8 Be5 Bg7 Bg3 Bh6 Bh4 Bf4 Qc8 Bg3 Qc7 Bf2 Qc8 Bg1 Bg5+ Rf4 Nf3 Nd2 Qc7 Rf7 Qc8 Nh7 f6 Re7 Bh4 Ng5 f7 Rf6 f8N Rh7 Ng6 Ne5+ Kc5 Rf5 d7 Nef7 Nge5 Rf4 d6 Rf5 Nfd4 Rf3 Qc7 Qc8 d8R Qd7 Kd5 Qb5+ Qc5 Qd3 d7 Bf2 Rg1 h1B Rg4 h2 Kc6 Bg2 Rg8 h1B d8R Bg1 Qc3 Bh3 Rf4 Bg4 Rde8 Bg2 Ng3 Bh5 Be2 Bf1 Rg4 Nh3 Bd8 Nhg5 Rh4 Kf2 Qa4 e3 Qaa5 Bg4 Bd1 e2 Bdb3 e1R Bbc4 Re4 Nde2 Rd4 Qb5 Rd7 Qd5 Rb7 Qda5 Bfh3 Nf1 Bg2 Nh2 Bf1 Qd5 Bh5 Qe4 Bg4 Qg6 Ke3 Qh5 Rf2 Nd4 Bd1 Ne2 Rf3
1b1B2NQ/nQ1R3B/bBqqr3/Nk1r1rRR/3r4/rN5K/4nqP1/2QR4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 d4 h5 f4 c5 Kf2 e5 b6 a5 b5 c4 d6 e4 f6 c3 f5 a4 b7 c2 d5 h3 Kg3 a3 f7 e3 f6 h2 b6 h4+ Kh3 a2 Ne2 Ra4 Ng3 e2 Be3 e1R Ne4 c1Q Nbd2 Qc3 Nb3 Qc6 Bd3 Rh5 Qc1 Rf5 Bf2 Be7 f8R Nh6 f7 Rd4 Rg8 Rd1 Rb1 a1R f8Q Ra3 Rg5 Bf6 Qh8 Be5 Ned2 Re1 Nc4 Bf4 Nca5 Re6 Rd1 Qf6 Rh5 Qe5 Rb2 Qe2 Bg1 Qf2 Re2 Bg3 Re3 Be5 Rg3 Bf4 Rgg5 h1R+ Bh2 Rf1 Bg1 Rfe5 Bh7 Nf5 Rg6 Ng3 Rgg5 Na6 b8R Nc7 b7 Ne2 Ra8 Nb5 b8Q Ba6 Qb7+ Qc7 Rf8 Bg3 Rf3 Na7 Rfd3 Bh2 Nc6 Bg3 Ne7 Bf4 Ng8 Rf5 Kg4 h3 R3d2 h2 Kh3 Kd8 d7 Qc6 Qb5 Kc7 d8N Kd7 d6 Rfd5 Nb7 Be5 Na5 h1Q+ Bh2 Qhg1 Bg3 Qf6 Bf2 Qg6 Be3 Rf5 Qb4 Qf2 Qb7+ Kd8 d7 Bb8 Qa8 Kc7 d8B+ Kd6 Qb7 Nc3 Na1 Kc5 Rd3 Qd6 R3d2 Qe8 Rd3 Qb5 N1b3+ Kb4 R3d2 Ne2 Rd3 Ka4 R3d2 Qbc6 Rd3 Rdf4 Beb6 Rfd4 Qf7 Rb5 Qe7 Rc4 Bbc7 Qdf4 Rd5 Rd4 Bb6 Qfc7 Rd6 Rbd5 Qeg7 Qe7 Qf7 Qf8 Qb7 Kb5 Rd7 Qfd6
2k2n2/2q5/RQrb1rBN/1N1K1N2/1Bb1nrQ1/8/brP1r3/B1RRQq1Q w - - 0 1 illegal: No possible last move, all moves rejected
R4qnn/1n2RQ1r/1kq2R2/1b4R1/5KBB/P1qNr1b1/N1qq2QQ/1BN5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 e5 g4 b5 d4 h5 f6 c5 g6 Kc7 g5 b3 g7 h4 d6+ Kb6 a3 b2 d5 e4+ Kf4 c4 f7 b4 g6 b3 d7 h3 d6 h2 Qd2 e3 Be2 c3 Bg4 c2 Ne2 Kb5 Nbc3+ Ka5 Re1 b1N Na2+ Ka6 f3 Qe8 d8R h1Q d7 Bc5 f8Q b2 Qf7 Qf8 Re8 Kb7 d8N+ Kb6 Nc6 Bd6+ Ne5 Bd7 Re7 Qg2 Rf1 Nc3 Rg1 b1Q Bb2 Qe8 Nec1 Nb5 Qf2 Qh3 Qh2 e2 Bc3 Ra5 Be1 Nc6 Bh4 e1Q Rf1 Bc7 Rf2 Nd6 Ned3 Nd8 Rf1 Nh6 g8Q Bb5 g7 N8b7 Rf2 Qc6 Qa8 Ra7 g8B Qhf1 Bh7 Re8 Rg2 Qb2 Rb1 Qa1 Rb4 Qb1 Ra4 Ng8 Ra5 Qec3 Rf2 Bc4 Rg5 Bb5 Qc4 Ra6 Kg3 Nc5 f4 Qch1 f5 Nf7+ Re5 Ba4 Nb3 Ra7 f6 Nh8 f7 c1Q f8R Q1d2 Nbc1 Qa5 Ndb4 Bb5 Bd3 Qbb2 Bb1 Qbc2 Nbd3 Qac3 Qae4 Re7 Ra8 Re6 Qe2 Qc6 Qee4 Bb8 Qeg2 Rh7 Rf4 Nb7 Qb3 Rf6 Re7 Re6 Qc4 Re5 Rf8 Qf7 Qb3 Qg7 Rf6 Qf8 Qf7 Re4+ Kf3 Bg3 Rh6 Be1 Rf6 Re3+ Kf4 Bg3+
Q1R1q2n/1R1r1bB1/6n1/K1NQBRn1/1r1r4/P2nqn2/NQ2Nk2/b1N2B2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 d4 Kd6 Kd2 c5 f4 e5 f6 b5 h6 g5 f7 c4 h5 b3 Kc3 e4 Kb4 g4 a3 b2 f5 c3 f6 g3 h7 e3 h6 e2 Qd2 e1N Qh2 c2 Ne2 Nf3 Nbc3 b1Q+ Bb2 c1N Na2 Qd3 Rb1 Bg7 f8Q+ Ne7 f7 Qe8 Rg1 Rg8 h8N Ra7 h7 Nd7 Ng6 Nde5 h8B g2 Ngf4 Qe3 Nd3 Rd7 Ka5 b4 Rh1 Bf6 Bg7 g1N Qh8 b3 Rh5 Nh3 Rf5 Nhg5 Bc3 Kc7 d6+ Kc6 Qh2 b2 d5+ Kb7 Qh8 N5g6 Be5 Ka7 Qh2 Nh8 Qf2 Neg6 Qg2 Rc7 d7 Kb7 d8Q Rd7 d6 Kc6 Qf2 Kd5 Qh2 Ke4 Qf2 Rc7 d7 Ba6 Qc5 Bc4 f8N Bf7 Ne6 Rb7 Qd6 Rb4 Q8b8 Rd4 d8R Rf8 Rc8 Rg8 Ra1 b1R Qa8+ Rb7 Rb1 Rf8 Qab8 Rd7 Rb7 Rb4 Qa8 Rg8 Ndf4 Nd3 Nec1 Rf8 Nfe2 Rg8 Bf4 Ba1 Bfe5 Rd4 Bf8 Rg7 Qg2 Rh7 Bfg7 Rh4 Qb6 Qf4 Qc5 Ke3 Qd5 Qg3 Nc5 Rhg4 Qh1 Kf2 Qb3 Rb4 Qb2 Rgd4 Qh5 Qf4 Qh1 Nd2 Qe4 Ndf3 Qd5 Qe3
1bq1q2Q/qNRN1n1N/Qr6/1b2r1nQ/B1qP1k1q/BrN5/4RB2/1K4R1 w - - 0 1 illegal: No possible last move, all moves rejected
k3n1NK/3bn2n/r2nQ1B1/B1PR4/4B1Q1/1qR2Rq1/rQb1NN1n/N5b1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Ke4 d5+ Ke5 Kd7 f4 Kc7 c4 Kb7 g4 d3 b4 a4 c5 d2 g6 a3 g7 h4 b6 a2 f6 e6 g5 d4 f5 h3 b5 d3 g6 h2 f7 Ra5 f6 Ka8 b7+ Ka7 Nh3 Ne7 g8B Qb6 g7 Bd7 Qg4 d1B Bg2 d2 Be4 Bc2 Rd1 h1N Nf2 Rh6 Nc3 Ng3 Ne2 Ngf5 Bh7 Na6 g8N Nd6 b8N Nc7 Bhg6 Nce8 Na6 Bg7 f8Q Qb7 b6+ Ka8 Rb1 a1Q+ Bb2 Qa2 Qf7 Qb3 Nb4 Ra2 Bc3 Qc6 Rdc1 d1N Bd2 Nc3 b7+ Kb8 Rd1 Qc7 Rbc1 Ncd5 Bc3 Ka7 Rd3 Qb8 Rf3 Qc7 b8R Bh8 Rd8 Qb8 Qg7 Qc7 f7 Ndf6 f8Q Nh7 Qf7 Qb8 Nc6+ Ka8 Qgf6 Bg7 Ba5 Bh8 Kf4 Bg7 Qb2 Bd4 Nb4+ Qd5 Nfd3 Bg1 Nf2 Qb7 Nc6 Qb5 Ncd4+ Qb7 Nb3 e5+ Ke3 Qd5 Qfe6 Qb7 Na1 Qd5 Bd3 e4 Kf4 Qb3 Ke5 e3 Bdf5 Be4 Rc3 Bc2 Nd4 e2 Be4+ Bc6 Rd7 e1N Rd8 Ng2 Rd7 Ne3 Ne2 Nf1 Rd8 Nh2 Rd7 Qc8 Rd8 Nb7 Rd5 Nbd6 Qd7 Qcb8 Ke6 Ndf5 Kf7 Qg3 Qe6 Bd7 Bb6 Nef6 Ba5 Nd6+ Kg7 Nfe8+ Kh8 Rh5 Bb6 Rf5 Ba5 Rf4 Bd3 Rfa4 Bde4 R4a3 Bb4 Ra7 Ba5 Ra6
1BnRKbB1/R4b2/qb4n1/Pr1r4/1B1Q1r1k/4Q2N/rQNRQr2/N3q3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 b5 h4+ Kf4 a4 g5 d4+ Ke4 f4 e5+ d6 c6 f6 Kf5 h6 b3 h7 g4 d5 b2 f7 b4 h5 b3 h6 e4 Qe2 e3 Nd2 b1R Nh3 b2 Rh2 g3 Nb3 Kf6 f5 Bg7 f8N g2 d7 g1B Kd6 c5 Ne6 c4 Ned4 c3 Nc2 Qa5 d8Q+ Ne7 Qe8 Rf8 h8Q Nbc6 h7 Ne5 Ra2 Bf2 Nba1 Qa6+ Kc7 Bd7 d6 Be6 d7 Nc8 Kd8 Ng6 Bg2 Rf7 Bd5 Ra7 Bd2 Rd1 Be1 Bg1 Bg3 b1R Bb8 Rb5 Bc4 Rf1 a5 Rf4 Rb2 Rd5 Rb7 Rf8 Rc7 Rb7 Rg2 Rbb5 Rh2 Ke5 f6 Kf5 Ra7 Rf7 Qe7 Bf8 Ke8 Rf2 d8R Rf4 Qd2 e2 Qe3 e1Q Rd2 Kg4 Qg7 Kh4 h8Q+ Rh5 Qe2 Bb6 Qa3 Rd5 Qb2 Rb5 Qhh6 Rf2 Qhe3 Rhd5 Nb4 c2 Ba2 c1R Nbc2 Rc7 f7 Rc4 Bb3 Rcf4 Qgd4 Be7 f8B Rb1 Qc1 Rb2 Bc4 Ra2 Qcb2 Bg5 Bb4 Bh6 Bd3 Bf8 Be4 Nh8 Bh7 Ng6 Bg8 Bf7+
1bQrq3/b3n2k/RP1rN3/1Qq1b1rN/2b5/NB1R4/4QR1B/1KnB2Qb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 Kd2 Kg7 Kc2 h5 f4 e5 b4 c5 g4 a5 d6 h3 d5 a4 d7 e4 f6+ Kh6 b6 e3 b7 h4 d6 c4 f5 a3 g5+ Kh7 g6+ Kh6 g7 a2 b5 c3 f7 h2 f6 h3 Be2 Ra7 Na3 Na6 b8Q Ne7 g8B Qe8 d8R Nc5 d7 Ba6 b6 Nb3 Qe5 Bc4 Qb5 Ra5 Bh5 Bg7 Qe2 Bf8 Bb2 Nc1 Bf3 Bg7 f8Q Kg6 f7 Be5 Bg4 Bb8 Bf3 Ba7 Bg4 Nf5 Qfc5 Ne7 f8Q Rh6 Bd5 Kh7 Qff1 Rd6 Qc8 Qh8 Rf8 Qg8 Rf2 Qe8 Qba6 Rc5 d8N Rb5 Bf7 Rg5 Ne6 Rd8 Qb5 Rd6 Qee1 e2 Qd2 e1R Ne2 Rd1 N2f4 Rd8 Rg1 h1Q Rg3 h2 Qg1 Qd5 Rd3 h1B Nh5 Qc5 Qe2 Rd6 Rb1 a1B Bf3 Na2 Bc1 Rd8 Bf4 Nc1 Bh2 Rd6 Rb4 Bb2 Ra4 Rd8 Re3 R1d6 Ra6 Ba1 Rd3 Bb2 Kd1 c2+ Kd2 Be5 Bg4 Rd4 Kc3 Beb8 Kb2 R4d6 Bf3 Na2 Bg4 c1B+ Kb1 Be3 Qee1 Bc1 Bd1 Bb2 Qe2 Be5 Nd4 Bcd5 Be6 Nc1 Bf7 Bc6 Bfb3 Bcd5 Ne6 Bc4
1Bq4Q/1NbR1QBq/n2q4/1bn4r/1P1QRN2/Nn1n3r/1R2R1B1/b2k1K2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 g5 a5 b6 c5 b7 c4 g6 e4 f6 h3 f7 h4 f5 c3 g7 e3 f6 h2 Bc4 e2 Qc2 h3 Bb2 a4 Ra2 a3 Qd3 Na6 b8B+ Qc7 Ba1 c2 Rb2 a2 Na3 c1N Qd1 Be7 f8Q Rh5 f7 Nf6 g8Q Bd7 Qh8 Bb5 Kf2 e1N Bf1 Ra7 Bg2 Nd7 Ne2 Ned3+ Kf1 Nb3 Nf4 N7c5 Qe8 Ra8 f8R Bd8 Qf7 Ra7 Rg1 h1Q Re8 Qh2 Re4 Qg3 Rbe2 h2 Qd2 h1Q Bc3 Qhh3 Rh1 a1B Rh2 Qhh4 Qd1 Qe7 Rb2 Kd7 d6 Kc6 d7 Qc8 d5+ Kb6 d6 Bc7 d8R Qg7 d7 Qh7 Re8 Qd6 d8N Rh3 Nb7 Kc6 Ne6 Kd5 Rd8 Rh5 Bg7 Rh3 Nb1 Rh5 Rd7 Ra8 Re5+ Kc4 Na3+ Kc3 Nf4 Ra7 Rbe2 Ra8 R2e4 Kb2 Qg4 Kc1 Re2 Rh3 R5e4 Kd1 Qh4 Ra7 Qf2 Rh5 Qd4 Rh3 Qfc4 Ba4 Qf7 Ne6 Rc2 Ra8 Ba7 Nb8 Bh1 Bc6 Rhe2 Ba4 Bb6 Ra5 Rb2 Rah5 Bg2 Na6 Ba7 Nec5 Bb8 Bb5
qb3bQ1/Q6r/NB1BR1n1/q1PRK3/rR4Qn/1qkr1N2/4R1Bq/5bN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 a5 f4 g5 c4 d6 b4 d3 b6 d2 h6 a4 b5 g4 h5 a3 b7 a2 b6 g3 h7 g2 h6 Nc6 b8N Nb4 b7 Nd3 Rh4 Ra4 Na6 Ne7 b8Q Qa5 Qg4 d1Q Qa7 Qb3 Nd2 Ng6 Ndf3 Bd7 Bd2 Bb5 Re1 a1Q Be3 Qaa2 Rh2 Nh4 Bb6 Qaa3 Kd5 e4 Kd4 d5 Re2 Nb4 c5 e3 Re1 e2 Rd1 Rg8 h8Q+ Rg7 h7 e1B Qg8 Bg3 h8R Rh7 Rd2 Bc4 Rb2 Nd3 Rb1 Rb7 Rh5 Rh7 Rg5 Qd1 Rb4 Qdb3 Ke3 d4+ Ke4 Nb2 Rh5 d3 Rg5 d2 Rh5 d1R Rg5 Rhd7 Rh5 Ke7 Ke5 Rd3 Rh6 Rc7 Re6+ Kd7 f6 Qa1 Ne2 g1Q f7 Qaa2 Rg2 Qh2 Neg1 Bb5 Re2 Qaa3 Re8+ Kc6 Bg2 Qaa2 Rd8 Rb7 Rd5 Qa1 Ke6 Bc4 f5 Bb8 f6 Bb5 Rd4 Bc4 Rde4 Kb5 R4e3 Nd1 Re4 Nf2 Rd4 Nh3 Rf4 Bfd6 f8R Rh7 Re8 Bf8 f7 Qaa2 Rfe4 Nf4+ Kf6 Qaa3 R8e6 Qaa2 Nc7+ Kb4 Na6+ Kc3 Red4 Bh6 f8B Qa1 Be7 Bf8 Bd6 Ra3 Nc7 Qa6 Rb2 Rd2 Ke5 Bf1 Qb7 Rd3 Re2 Qa8 Na6 Ra5 Qa7 Qaa4 Ng5 Qab5 Rb4 Ra4 N5f3 Qa5 Qf5 Rh6 Qh5 Rh7 Qhg4 Nfg6+
bQNb2BQ/4n1q1/4n1PQ/brr2RBn/N2R2R1/B1B1q3/1rb1N3/4K2k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 g5 e5 b6 a5 b5 a4 f6 a3 b7 h3 f7 h4 f5 a2 g6 c4 f6 e4 b6 h2 Nd2 c3 Qg4 e3 Qg5 h3 Bc4 e2 Nb3 c2 Bd2 Nd7 b8N Qe7 b7 Nc5 Bc3 Ne6 Rd1 a1Q Nc5 c1R Nbd7 Rh5 Qh6 Ra2 Na4 Rb2 Ndb6 Qe8 Bb3 Be7 f8R Bd8 f7 Ne7 Ba2 Rcb1 Bc4 Rb5 Ba2 R1b2 b8Q+ Nc7 Bb3 Bf5 Bc4 Bc2 Nc8+ Kd7 d6 Kc6 d7 Ne6 Ba2 Rhc5 Bb3 Qc1 Ba2 Qe3 Rd3 Qe5 Rg3 Qg7 Rg4 Bb6 d8Q Bc7 Kf2 e1B+ Kf1 Ba5 Ne2 Bh4 Rhg1 Bf6 Ke1 h1N R1g3 h2 Rd3 Ng3 Bb3 h1B Ba2 Rb6 d5+ Kb5 d6 Kc6 d7 Nh5 Rdd4 R6b5 Rc4 Kd5 Bb3 Be5 Ba2 Bec7 Rcd4+ Ke5 Bc4 Ba8 Ba2 Ng8 Qh4 Ne7 d8B Nf5 Bg5 Ne7 Rh8 Kf5 f8B Bd8 Bc4 Qc6 Bb3 Qf3 Rg8 Qe3 Qh8 Ng3 Q4h6 Nh5 Bd5 Nc6 Bd6 Ne7 Rf8+ Qf6 Na7 Rc7 Rg3 Nc5 Rg8 Qg7 Rgg4 Rc8 Bf7 Ne6 Ba3 Rcc5 Rf8 Nef4 Rd5+ Ke4 Rd4+ Kf3 Nc8 Ne6 Bg8+ Qf6 Rgf4+ Kg2 Rg4+ Kh1 Rf7 Qfe5 Rf5 Qg7
5rB1/3q1r2/qP1nnR1b/1q4BR/NNkB2Q1/Qrb4b/K5q1/RQ1RN3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 h5 g4 e5 f4 a5 g5 e4 g6 h3 b6 c4+ Ka2 h4 b4 a4 b7 h2 g7 h3 b5 c3 b6 e3 f6 e2 f5 e1Q f7 c2 f6 a3 Bc4 Qd7 Nf3 Qf1 Bg5 c1B Nc3 Rh6 Na4 Bd2 Ne1 Ne7 g8Q Na6 b8N Nf5 Nc6 Rh7 Nb4 Nc5 Qb1 Bh6 f8R Ne6 f7 Bc3 Be3 Qd3 Bb3 Q3b5 Qg4 Ke7 d6+ Kf6 d5 Ke5 Rf1 h1Q Rh8 h2 f8Q Qg2+ Bf2 h1R Qe7 Qc7 d7 Rh3 d8B Rf7 d6 Rf3 d7 Nd6 Qf8 Re3 Be7 Rb8 d8R Qcd7 Bd5 Ref3 Bg5 Re3 Be4 Kd4 Qe7 Kc4 Bh7+ Bd4 Bg8 Rb3 Qgd1 Bb2 Bd4 Bc3+ Rf2 Bf8 Rh5 Bh6 Qg4 Ra8 Qb2 Rb8 Rf6 Ra8 Kb1 a2+ Kc1 Qbc6 Be5+ Nd4 Rb1 a1Q Na2 Ne4 Qge6+ Qcd5 Nc5 Qb7 Q6d7 Qa6 Na4 Qdb5 Qea3 Qd5 Nb4 Qa2 Ra1 Qdb5 Qb1 Qaf2 Qh3 Qf5 Rd5 Nd6 Qg3 Nc6 Rd1 Nd8 Bd4 Qe6 Qf3 Qe7 Qf4 Bh3 Qf3 Qed7 Qg4 Qgd5 Kc2 Ne6 Kc1 Raf8 Kc2 Qg2+ Kc1 Bd2+ Kc2 Rf3 Kb2 Rb3+ Ka2 Bc3+
2BrqB2/B2R1n2/NNb1B3/4Q2r/r2Nr2P/r2k1Kb1/n2r2Q1/R3nR1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 Kd6 d4 f5 b4 a5 h4 g5 h6 c5 b6 f3 b7 g4 h7 g3+ Ke3 c4 b5 g2 b6 c3 Bd3 a4 Ne2 g1R Na3 c2 Qf1 f2 Qg2 f1R Ba6 Nc6 b8N Nh6 b7 Re1 Kf3 Nf7 Bh6 c1N Bc4 f4 Na6 Rg8 h8Q Nb4 Bb3 Be7 Bf8 Qe8 Qhg7 Nc2 b8B+ Kd7 e5 Bb7 Nc4 a3 Q7g3 a2 Ba7 Bc6 Qg5 Bd6 e6+ Kc8 e7 Kb7 Qe5 Bc7 Qg4 Rg2 Rf1 Rd8 Qg3 Rh8 Nb6 Rh5 Qh2 Rg4 Qh1 Rd1 Qg2 Rd2 Bc4 Bb5 d6 Kc6 d7 Rg3+ Kf2+ f3 Be6 Ba4 d5+ Kb5 Qh1 Rg4 Qg2 Re4 Kg3 f2 Kf3 Bb3 d6+ Bd5 Nb8 Kb4 Nd4 Kc3 Na6 Bc6 Qh1 Kd3 Qg2 Ra8 d8Q Rb8 Qd7 Rd8 Qh1 Bb8 Qb7 Bc7 d7 Bb8 Rb1 a1R Qa8 Ra4 Ra1 Na2 Qg2 Rc8 d8R Bc7 Rd7 Rd8 Qf5 Bf4 Qe5 Bg3 Rc7 Qd7 e8B Qe7 B8d7 Qe8 Bc8 Ra3 Rh1 Ra4 Rd7 f1R+ Qf2 Rb1 Qg2 Rb3 Rhf1 Rba3 Qab8 Bf2 Qeh2 Be1 Qbe5 Bg3 Qhh1 Ne1+
3b3Q/3R1R1B/1Q1Nn3/RbqPnn1B/2Q2B1b/2B1n2K/r1r5/n1N1Nn1k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 Kg2 a5 d4 e5 g5 e4 b6 h3+ Kg3 e3 b5 a4 b7 a3 g6 h2 f6 a2 f7 h4+ Kg2 c4 g7 e2 f5 e1B f6 c3 b6 c2 Bb2 c1N Qa4 Na6 b8B+ Nc7 b7 Qe7 Be2 Nd3 Bc3 Nh6 g8B Nf5 Qc4 Ne5 Bh7 Bd7 Nf3 Bb5 Kh3 Ne3 Nbd2 Bg3 Rhd1 h1N Ne1 Bg7 Rdb1 Rc8 f8R Ra4 f7 Bf6 Bh5 Bg5 Ba7 Ne6 b8Q+ Qc7 Nb3 Bd8 Qb7 Qc5 Nc1 Bf2 Rb4 Ng3 Qb6+ Rc6 Rb3 Ngf5 Ra3 Ra6 Ra5 Bg3 Rb1 a1N Rb2 Bf2 Rd2 Bg3 Re8 Bf2 Re7 Bg3 f8Q Bf2 Kh2 h3 Qh8 Bh4 Rd1 Bc7 Rf7 Bcd8 Kg1 h2+ Kh1 Nf1 Kg2 h1N Kh3 N5e3 Rd2 Nhg3 Rd3 Bhe7 Rd2 Ngf5 Bb8+ Kd7 d6 Rc7 Qa7 Kc6 d7 Bh4 Rd1 Bdg5 d8N+ Kd6 Qd3 Kd5 Qc4+ Ke4 Nb7 Bd8 Qb6 Ra8 Nd6+ Kf4 Ra7 Rc8 Rad7 Ra2 Rd2 Rc2 Bc7 Ra8 Rg2 Raa2 Rg1 N3g4 d5+ Ke3 Rg3+ Kf2 Rg1 Nge3 Rg8 Bde7 Ra8 Kg1 Ra5 Kh1 Ne8 Nd3 Bf4 Ne5 Nd6 Bd8
1q3q1Q/2nnn1NK/Q3Q3/6Pr/b5r1/R2B4/1NNn2kb/RRnBRnB1 w - - 0 1 illegal: No possible last move, all moves rejected
b4Q2/1B3PNn/bN2bKR1/R4BQr/7n/r1RQ2bb/2N2Bqk/qB3b2 w - - 0 1 illegal: No possible last move
2QK4/Q4b2/1Brb1b1k/4n2N/3rN3/1qQrR1nP/R1B2RQ1/nnNB2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 c5 Ke4 f5+ Ke5 Kf7 b4 g5 e4 Kg7 d4 g4 b6 f3 b5 f4 b7 a4 d6 a3 h6+ Kh7 b6 g3 h3 f2 d5 c4 d7 a2 Ke6 c3 e5 c2 d6 g2 Nc3 f3 Rh2 Na6 b8R Qg5 b7 Qh4 Ne4 Qf4 Bd3 f1R Qd2 f2 Ne2 Kg6 h7 g1B Qc3 Qh4 Be3 c1N Bc2 Ne7 Bb6 Nb3 Nc1 Rg8 h8Q Nf5 Qg7+ Kh5 Kf7 Rd1 Ke8 f1N d8N Nb4 e6 Ra6 d7 N5g3 e7 Nd3 Ne6 Ne5 d8Q Rd4 Rf2 Nfd2 Ra8 Nb1 b8Q Bb7 Qa7 Bd5 Qdc8 Bc4 Qg4+ Kh6 Nf4 Qg5 Nh5 Qe3 Qf3 Rg4 Qh1 Rd3 Qg2 Bd5 Kd8 Bf7+ Qd4 Rh4 e8B Bd6 Ba4 Rf4 Qdc3 Qf3 Ba5 Rc6 Bb6 Qd1 Nd2 Rfd4 Ne4 N1d2 Rb1 Na1 Rb3 Nb1 Ra3 Qf3 Bd1 Nc2 Bb3 a1B Ra2 Bb2 Rb8 Na1 Bbc2 Qg4 Rb7 Qe6 Re7 Qb3 Nc5 Nc4 Re3 Ne5 Ne4 Ra4 Rfe2 Ng4 Qc4 Bh8 Qc5 Ne5 Qc3 Rad4 Rf2 Bf6+
4K3/2N1RQ2/3nNbP1/n5R1/1QB2brk/BbrQ2N1/2Bn2Q1/br1Rn2q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 a5 Ke4 f5+ Ke5 h5 g4 c5 d4 a4 b4 f3 e4 h4 b6 h3 b5 f2 d6+ Kf7 b7 Kg6 d5 f4 d7 f3 Ke6 c4 b6 c3 e5 c2 d6 a3 Ne2 h2 Rg1 h1N Qd2 a2 Ng3 Rh4 Bd3+ Kg7 g6 f1R g5 f2 Ba3 c1B Bc2 Rf4 Nc3 Re4 Nb5 Ne7 Nc7 Nbc6 b8Q Rh4 b7 Na5 Qa7 Rg4 b8Q Nf5 Qbb4 Be7 Qd3 Bf4 Rd1 a1B Rg2 Kh8 Kf7 Bf6 g7+ Kh7 g6+ Kh6 g8B Kg5 e6 Kh4 e7 Re1 e8Q f1N Qee4 Nf2 Rg1 Ba6 Qg2 Nd2 Qab7 Qc8 d8N Bc4+ Nde6 Bb3 d7 Qb8 d8R Nd6+ Kf8 Qa7 Qbd5 Qb7 Re8 Ra6 Re7 Rc6 Bf7 Rc3 Q5f5 Nb5 Ke8 Qd5 Qgf1 Qh1 Qg2 Rf1 Ng5 Re1 Bc4 Rf1 Nge6 Re1 Qd7 Nd3 Qfd5 Rf1 Qf5 Ne1 Qdd3 Bd4 Qf8 Bf6 Qf7 Nd6+ Kd7 Be3 Ne2 Rf5 Qf1 Re4 Rc1 Nef3 Rg5 Rg4 Ng3 Re5 Qfe2 Bf4 Qg2 Re3 Rf1 Re1 Kd8 Rb1 Rd1 Ne1 Kd7 Nc8 Ke8 Nd6+
2rR2qk/2PN4/1K2B1n1/RNB1r2n/1BQ2nQ1/1brbbQN1/1b2r3/1RN5 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 b4 a5 f4 e5 h4 g5 c4 Kg7 b6 g4 b7 g3 h6+ Kh7 f6 a4 h5 a3 b5 a2 c5 g2 c6 Bh3 b6 Ra5 f7 Ra8 c7 Bg7 f8B Ne7 f5 Bf6 Na3 Bh4 f6 Bc8 f7 Bf2 Ne2 g1N Ng3 Nh3 Qg4 Ng6 Bd2 Be3 Bdb4 Nd7 b8Q Nf6 b7 Ra5 Bfc5 Qg8 f8Q Bd7 Rb1 a1B Nb5 Bb2 Qbd8 Bc8 b8N Ba6 Nd7 Ra2 Qde8 Ra5 Qee6 e4+ Kc2 d3+ Kb3 d2 Bc4 d1R Rh2 Bbd4 Ra2 Bb2 Qc6 d4 Be6 d3 Kc4 d2 Ra3 Ne8 Qff3 Ng7 Ra2 Ra3 Qd5 Rb3 Ra5 Re1 Qd4 d1B Kd5 Bd2 Kc6 e3 Qc4 e2 Kb6 Rd3 Nc3 Bb3 Na2 Rc3 Nc1 Qe8 Ra3 Rf8 Ra5 Kh8 h7 Nhf4 Raa1 Be3 Ra2 Nf5 Ra5 Kg7 h8R Qd8 Qce4 Bd3 Qc4 Qe8 Rg8+ Kh7 h6 Ng7 Qg2 Qf7 Q2f3 Rc8 Re8 Qg8 Rd8 Kh8 h7 Bbc2 Nf1 Ngh5 Ng3 Kg7 h8N Bb3 Nf7 Kh7 Nd6 Kh8 Kc6 Rf1 Nf8 e1R Nb5 Rf2 Nd7 Rfe2 Kb6 Bg1 Nf6 Re5 Nd7 R1e2 Nh1 Bf2 Ng3 Be3
3QNRnK/2r1q3/b3P2B/qn1RQQq1/3bN3/k5N1/1nR2q2/1Br1B1Qn w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 e4 f5 h4 c5 d6 g5 h6 f3 h5 g4 d5 g3 b6 g2 h7 f4 b7 a4 d7 a3 d6 c4 h6 c3 Rh2 a2 Bd3 f2 Nd2 f1Q Ne2 Qc7 d8R Na6 b8Q+ Qb7 d7 Ne7 Kf6 g1Q e5 f3 e6 f2 Ne4 c2 Qf4 Rb8 Qf5 Ka4 b4 Qe1 b5 f1N b6 Qa8 b7 Qaa7 Bf4 Rg8 h8B Rg7 h7 Nc7 Bg5 Ra8 b8Q Ng3 Bh6 Nh1 Rf2 Qg4 N2g3 Nb5 Qc7 Qee2 Qg1 c1N Re8 Bb7 d8Q Rc8 Rb1 a1Q+ Qc3 Nc7 Rb5 Ba6 Bb1 Nd3 Rd5 Nb5 Qb2 Qef3 Re2 Rc1 Rc2 Qff2 Qc3 Ng6 Qb2 Bc5 Rf8 Rb7 B8g7 Qh5 h8N Ne7 Nf7 Be3 Nfd6 Qg5+ Kf7 Qc5 Be5 Rc7 Ne8 Qa2 Bc3 Ng8+ Rd7 Qb4 Be1 Bc5 Qe5 Bd4 Qc8 Nb2 Qd8 Qge3 Kg7 Qg5+ Kh7 Qbe7+ Kh8 Kb3 Rd6 Qa5 Rd5 Ka3
1Nq2Rqn/1BRb2Q1/R2PN3/5Q1r/1Bnn1bq1/RN1rB1k1/n6q/1Q1K4 w - - 0 1 illegal: No possible last move
5qRq/Nr1B2P1/QB2Q2b/1B1R4/2NKr1Rn/N1n4k/1r1Nbb2/r3Qb2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 c5 e4 h5 d4 f5 b4 a5 e5 f3 Ke3 a4 b6 c4 d6+ Ke6 b5 f2 g6 h4 d5+ Kd7 b7 a3 b6 f4+ Kd4 h3 g7 a2 g5 h2 g6 f3 Be3 c3 Qe1 c2 Na3 Qe8 Rd1 Nh6 g8Q a1R g7 Na6 b8R c1B b7 Ra7 Ra8 Qd8 b8Q Nb4 Qb6 Rb7 Qa6 Na2 Rd3 Nc3 e6+ Ke8 d7+ Ke7 d6+ Kf6 e7 Kf5 e8B Kg4 Be2 f1R Qd5 Rf2 Qe6+ Kh4 Rd2 Qe7 d8N Rh7 d7 Nf5+ Ke5 Qf7 Rd5 Bc5 Nc6 Qf8 d8N Rh8 Bd4 Bh6 Bb5 Kg4 Be3 Rb2 Bd7 f2 Nf7 f1B Nf3 Kh3 Rg1 h1Q Rg4 Nh4 Na7 Be2 Bg1 Bf2 Nd6 Bf1 Nd2 Rh7 Bdc6 Bd7 N6c4 Be8 Ne3 Bh5 Kd4 Qh2 Re8 Qb8 Bd7 Qh8 Rg8 Qf8 Rg2+ Bg4 Rf5 Bge2 Rg4 Bf4 Rfg5 Rh5 Rd5 Bh6 Qg6 Re5 Qge6 Bg3 Nec4 Re3 Bh2 Bf2 Bc7 Rd1 Ba5 Ra1 Bb6 Re4+
2nn2k1/brQ1r1Bb/1R4BK/1q4rB/QR4N1/1Np1RB2/2qq2QP/4N1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 a5 Ke3 f5 Kf4 Kf7 d4 c5 e4 g6 b4 c4 d6 c3 b6 g3 e6+ Kg7 d5 g2 e5 a4 d7 a3 e7 a2 Kg5 f4 b7 f3 b5 f2 e6 Qe8 d8N Nd7 b8Q Nb6 d6 Nd5 d7 Ra3 b6 Nb4 b7 Ra7 Qc7 Rh4 b8R Rb7 Nc6 Rh8 d8Q Qd7 e8B Bc5 e7 Ba7 Be2 f1Q Nd2 Rh7 Ne5 Nc6 Bf3 Qb5 Rb1 a1Q Qa4 Qab2 Nb3 Qc2 Be3 Qdd2 Qd5 Bf5 Ng4 Bd3 Bf7 Nd8 e8B Ne7 Rb2 Qe2 Bd4+ Kf8 Be5 Nc8 Bf6 Rg7 Kh6 g5 Bh5 Bh7 Beg6 Re7 Qdc6 Qe3 Bg7+ Kg8 Rb1 Qf4 Re1 Qfd2 Re3 Bc5 Bfe4 Bb6 Nf3 g1R Ne1 Ba7 Bf3 Rg2 Nd3 Rg3 Rb1 Rg2 Ne1 Rg1 Ne5 g4 Qce4 g3 Ng4 Rb6 Qa8 g2 Rb7 Rf6 Rb6 Rff7 Qg3 Rb7 Qab8 Rfe7 Qbc7 Rf1 Rb2 g1N Qg2 Rf2 Nc5 Re2 Rb4 Re5 Nb3 Rg5 Rd3 Re4 Re3 Re7
B3rq2/n7/Q3R2b/r2R1B2/1N1K2Qp/2rQ2R1/bN2NPn1/q1B1qbNk w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 d4 Kg5 b4 h5 g4 e5 b6 a5 d6 c5 d7 e4 b7 h3 d5 Kh4 d6 h2 b5 a4 b6 a3 g5 a2 g6 c4 g7 c3 f6 c2 f7 Ra4 Nd2 Ra7 Kd4 e3 Bg2 e2 Nc4 e1R Nb2 Qc7 d8Q+ Nf6 g8B Be6 d7 Bh6 f8N Ra5 Bh7 Re3 Bf5 Rc3 Qf3 Bg8 Ne6 Qc8 Nf4 Bd5 Rb1 a1Q Nfe2 Re8 Qd3 Ba2 Qa6 Rh8 Qg8 Qf8 d8R Ng4 Rd5 Ne3 Bf3 Ng2 Qe6 Nd7 b8N Ne5 Nc6 Rg8 Nb4 Nc6+ Ke4 Rh8 b7 Na7 b8Q Rg8 Qbb5 Rh8 Be3 c1Q Kd4 Qe1 Qd3 Rg8 Rd1 Rh8 Bc1 Rg8 Nh3 Rh8 Rg1 h1B Re5 Rg8 Ba8 Rh8 Bh7 Rg8 Qec4 Kg4 Re6 h4 Ng5 Rh8 Nf3 Kh3 Bhe4 Nf4 Rgg6 Bg2 Nfg1+ Kh2 Rg3 Bf1 Bf5 Ng2 Qcc8 Kh1 Qd7 Qe8 Qg7 Qb8 Qg4 Qf8 Qb1 Kh2 Ke4 Qf6 Rd5 Re8 Qbd3 Qf8 Kd4 Kh1
2BN1r2/R2NR3/nR1Q2Q1/br1b4/6pn/BQ3bn1/1RKN1P1k/q4Bqr w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 h4 e5 b4 d5 c5 g5 c6 a5 h6 g4 c7 a4 b6 a3 h5 Kg5 b5 a2 h7 d3 h6 e4 b7 e3+ Kc3 d2 b6 e2 f6 e1N f7 Nf6 Qb3 Be6 c8B Nh5 Ba3 d1R Nd2 Na6 b8R Ng2 b7 d4+ Kc2 Bb4 f8Q Nh4 Qd6 Rf8 h8N Ng3 h7 Ba5 Ngf3+ Kh5 Rg1 Bd5 Nf7 Qd7 Nd8 d3+ Kb2 Qe7 Ne5 Rf5 Nd7 Qe1 h8Q+ Kg5 Nc4 d2 Qh7 Rc1 Qf7 d1B Nd2 B1f3 Rh1 Rd1 Kc2 Re5 Qfg6+ Kf4 Rb1 a1Q Rb2 Rb1 Bc4 Qg1 Bf1 Ng2 Rh7 Nh4 Qde6 Rf5 Re7 Rf8 Qc6 Ra7 Ra8 Re1 b8R Rb7 Ne5 Rb5 Raa7 Qh1 Nec4 Be2 Bg2 Qh2 Qd7 Rh1 Nb6 Qhg1 Qde6 Bef3 Bf1 Bg2 Nd7 Bge4+ Bd3 Bg2 Rb6 Bge4 Nf1 Kf3 Qd6 Kg2 Nd2 Bf3 Bf1+ Kh2
1BNQN1R1/3r1rr1/qq3nRQ/2qn2nQ/N2k1P1b/3b3K/1p4Q1/1BB2R2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 Kf2 Kf6 Kg3 g5 a4 c5 d4 b5 h4 e5 a5 e4 d6 g4 h6 e3 a6 e2 h5 e1N d5 c4 d7 b3 h7 c3 h6 c2 a7 b4 d6 b2 Qe2 b3 Ra6 Qc7 d8R Qc3+ Nf3 Qd4 d7+ Qd6 Nc3 b1Q Nh2 Nf3 Qg2 Ne7 Bd3 Ng5 Rf1 Nd5 Na4 Be7 Rg8 b2 d8Q Qa2 Kh4 g3 Ng4+ Kf7 f6 Ke6 f7 Qb6 f8Q Nd7 Qfe8 N7f6 Qh5 Rb8 a8N Rb7 Be4 Bd7 Bd3 Bb5 Bg6 Rd7 Bd3 Nfe4 Nf6 Bc4 Ne8 Nef6 Bg6 Bd3 Be4 Qc6 N8b6 Qa3 Qd2 g2 Nc8 g1R Qg2 Qb6 Kg3 Nf7 Kh3 Qad6 Rg3 Rf8 h8B Qa3 Rg8 Ng5+ Kh4 Qad6 h7 Rf7 Bg7 Qdc5 h8Q Qcc6 Q8h6 Qa8 Bd2 c1Q Kg3 Qc5 Bc1 Bb5 Bb1 Bd3 Bh8 Qb7 Ra8 Kf5 Rg6 Q7a6 Bg7 Ng8 Be5 Ngf6 Bb8 Ke6 Kh2 Kf5 Qc2 Ke4 Qf2 Rg4 Qg2+ Kd4 Rg8 Ngh7 Kh3 Rgg7 Ra7 Ng4 Rc7 Bh4 Rc6 Ngf6 Re6 Ne4 Rg6 Nef6 Rg1 Qa3 Re1 Qac5 Rf1 Ng5+
1Kb2n2/BqQNn1NN/1b2b2B/2r4n/3p3Q/2q1RrP1/3qQ2R/kN2R2B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 e5 Kc4 h5 Kd5 a5 f4 a4 b4 h4 c4 a3 g6+ Kf6 b6 d3 g3 h3 b7 d2 g7 a2 b5 e4 c5 e3 b6 e2 c6 e1N c7 d6 Qe2 d1B Nf3 h2 Bg2 Nh6 g8R Ra7 Ng5 Ng4 Ne6 Nd7 Kc6 d5 b8B Bb3 b7 Ra3 Ba7 Nc2 b8Q Bc5 Qb4 Rh5 Re8 Nce3 Ng7 Bb6 Re1 Nf8 Bh1 Bd7+ Kb7 Bc8+ Kb8 Bc4 Be4 h1Q Bd2 Qd7 Bc1 Qh2 Bh1 Bb3 Qe4 d4 Bd2 Nd5 Re6+ Kf7 f6 Ne7 f5 Qg2 Re5 Be6 Bh6 Rf3 Qf4 Qb5 Re3 Qb2 Qg5 Qd2 Qh4 Rg5 Nc3 Rh5 Rac1 a1Q Rc2 Qb2 Nb1 Qbc3 Rb2 Ne5 Ra2 N5g6 Rc2 Nf4 Rb2 Ba6 c8Q Rg5 Ra2 Nh5 Qc7 Bac8 Rb2 Kg8 f7+ Kh7 f6 Kg6 Rc2 Rc5 Ne8 Nh7 f8N+ Kf5 Nd7 Nf8 f7 Qf1 Qf2 Qa6 Qe2 Qb5 Ndf6 Qc6 Nh7 Qe4 Qc6 Ke5 Qc7+ Kd5 Qeh2 Kc4 Qe2+ Kb3 Ng7 Nfg6 f8N Qd5 Nd7 Nf8 Rcc1 Kb2 Rc2+ Ka1 Qb5 Qdd3 Rh2 Qdd2 Qe2 Qb7+
1Nq1R1qB/4Q2N/K1B1b2k/1rR1p3/4NnB1/QQ4r1/3Nn1rP/1q2Rnb1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 f4 a5 b4 g5 c4 Kg7 b6 a4 h6+ Kh7 c5 e6 f6 a3 b5 g4 c6 a2 f5 g3 c7 g2 f7 Qf6 b7 Ra7 b6 Qd8 f6 Nc6 b8Q Bc5 f8Q Ra5 f7 Nge7 b7 Rb5 Nh3 g1Q Bb2 Qg8 Qa7 Ng6 b8N Qe8 Nf2 Nf4+ Kd2 d3 Kc3 d4+ Kc4 d2 Ne4 d3 Bg2 Be3 Qe7 Nd4 Re1 Bg1 Qb3 d1R Nbd2 Nde2 Rc1 a1Q Qaa3 Qb1 Bf6 Bd7 c8B e5 Bf3 Kg6 h7 Kh6 Bg4 Bf5 Bd7 Qc8+ Bc6 Bd7 Nf1 d2 Rc2 Rd5 f8N Be6 Rc1 Rd3+ Kb5 Rg3 Rc5 Rc1 Ka5 d1N Nfd2 Ne3 Kb6 Nf1 Kb5 Qg6 Kb6 Rg8 h8R+ Qh7 Kb5 Rg7 Rg8 Qh8 Nh7 Rg6 Rd8 Qg8 Re8 Rc2 Ka5 Rb2 Bh8 Rg2 Bf3 R6g3 Bg4 Rc2 Kb5 Rc4 Kb6 Rb4+ Ka5 Rb7 Ka6 Rb5+
R2n1Q1R/R1n1q3/q1BnN1r1/2PQ1K2/4N2N/2B2Bb1/B1bQp3/2brq1k1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 e5 Ke4 h5 c4 a5 g4 d5+ Kd3 h4 b4 a4 f4 h3 c5 a3 f6 Ke6 b6 a2 b5 h2 b7 Ra6 f7 Ne7 g6 Nec6 g7 Bd6 g8B Qe7 g5 Kf5 f8N Nd8 Qe1 Kg4 b6 Bf5+ Qe4 Kg3 g6 Kf2 g7 Rh6 Bg2 Rg6 Nf3 Ra4 Bb2 Na6 b8Q Nc7 b7 Ra7 Rc1 h1N Nbd2 Ng3 Rh1 Ra4 Rh8 Rc4 Rc1 a1B Nh4 Rb4 Rc3 Kg1 Ra3 Rc4 Ra5 Rc1 Bf3 Rb1 Ra7 Rf1 Bc3 Bb2 Bb4 Ra1 Qc8 Rb1 b8R Ba3 Kc2 d3+ Kc3 Ra1 Rba8 d4+ Kc4 Bb2 Qd7 Rf1 Qb7 e4 Bd5 e3 g8B e2 Bgf7 Be4 f5 Ba3 f6 Nf5 Be8 Bg3 f7 Bb2 Ne6 Rb1 Nf1 d2 f8Q d1Q Nd2 d3 Bc3 Qe1 Qd6 Ra1 Qf4 Nd6+ Kd4 Ba3 Ke5 Bb2 Ba2 Ba3 Nb3 d2 Qd5 Bc2 Bc6 Rb1 Nc1 Ra1 Nd3 Rc1 Nf2 d1Q Bc4 Ra1 Ne4 Qd3 Bb3 Rd1 Ba2 Nde8 Kf5 Bc1 Qg5 Qa6 Qgd2 Nd6+
K1N2k1n/1B5b/4Bb1q/1PN1BN1n/1Q3r2/1R3nbr/Q3pR1r/q2R1QB1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 h5 Kd3 c5 Ke4 a5 f4 e5 b4 a4 d4 c4 g4 a3 d6 h3 Kd5 a2 d7+ Ke7 b6 h2 f6+ Kf7 g5 c3 b5 h4 b7 h3 f5 e4 Nf3 e3 Nbd2 c2 Rb1 a1N Nb3 e2 Be3 c1B Bg1 Ra2 Bg2 Qc7 d8N+ Ke8 f7+ Ke7 f6+ Kd7 g6 Rh6 g7 Bf4 Qf1 Nc6 b8B Bg3 Nb7 Ra8 Nh4 Ra5 Nd6 Be7 f8R Nd8 f7 Qb6 Nhf5 Ra4 Bf3 Bf6 Rb2 Ba6 Nc8 Nc2 Be5 Ne1 Be4 Qe6+ Kc5 Rh8 d5 Nf3 d6 Bb7 Kb6 Rc4 Bd5 Rf4 Ka7 Ba8 Bb7 Rh6 Ba6 Be4 Bb7 Bc2 Ka8 Bd3 Ne3 Bh7 Nf5 Rhh4 Re8 Rh5 f8Q Nf7 Rb1 Nh8 Rb2 Ne7 g8B Nd5 Bf7 Rhh4 Qg8 Rh5 Rf8 Rh6 Qg4 Rh5 Bg8 Rh4 Rf7+ Ke8 Nc5 Rh5 Rb3 Rh6 Rc7 Kf8 d7 Qb6 Be6 Qa5+ Na6 Qa1 Rc1 Rh5 Rd1 Rh4 Ba7 Rh6 Nc5 Rh5 Rg1 h1Q Rg2 h2 Rf2 Rh3 Qh4 Rd4 Qe4 Nf4 Qb1 Nh5 Qa2 Rf4 Bb6 Ng5 Ba7 Qc6 Bb6 h1R d8Q+ Qe8 Qd7 Nf3 Qd2 Qc6 Qb4 R1h2 Bf7 Qc1 Na6+ Q6c5 Rg2 Qd6 Bg1 Bd8 Nc5 Qh6 Be6 Bf6 Rf2 Qa1
B1n3Q1/1br5/qN2NK2/kPR3B1/1pRQ1N1r/r3BNb1/2nqn3/3bQ1R1 w - - 0 1 illegal: No proof kernel
Nq4N1/3R1b1n/1QB1NQn1/P1B1b1Q1/pr1n2q1/2rK2k1/1NR1Br2/1R2b3 w - - 0 1 illegal: No proof kernel
1b3Q2/RR1q3r/6P1/1nBB1bQn/rQN1Rqp1/1BK2nbQ/3r2N1/2k4N w - - 0 1 illegal: No proof kernel
2NRB1b1/NR3Qq1/2Pn2r1/1BpQ1rk1/B7/1q1nNnBb/4K2R/Q1q1b3 w - - 0 1 illegal: No proof kernel
N1bq4/Q1qNr2P/p4b1n/3R1Q2/5bKB/BBk1q3/nR3rN1/RQ2Rr2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 b4 Kf6 f4 g5 d4 e5 h4 c5 d6 a6 d5 e4 b6 e3 b5 c4 d7 c3 d6 c2 b7 g3 Kf3 g2 b6 e2 h5 e1B h6 Qc7 d8R Bb4 d7 Ne7 h7 Qc5 Nd2 Qe3+ Kg4 Bg7 Bc4 Bf8 Bb3 Ng8 Ba3 c1R Nc4 Ra7 Nh3 Bg7 Re1 Nc6 b8Q Bd2 b7 Nb4 Nb6 Na2 Na8 Qe5 Qc2 Qc7 Qb1 g1Q+ Kf3 Qgb6 Kg4 Qc3 Qc7 Qcd4 b8R Be3 Qc5 Qc7 Rb4 Rb7 Qa7 Rc2 Rb5 Rf2 Rd5 Qd3 Re8 Bc1 R8e2 Be3 Rb2 Nh6+ Kg3 g4 d8B+ Qe7 Kh4 g3 Kh5 g2 Kh4 Kf7+ f6 g1Q f5 Qc7 Nf4 Rf8 Ng2 Bf4 Kh5 Qd6 Kh4 Re7 Kh5 Qc4 Kh4 Qcc7 Kh5 Ke8 f7+ Kd7 f6 Kc6 Kh4 Rf1 Kh5 Qe3 Kh4 Rh8 f8Q Rf2 Qf7 Rf8 Qfg6 Bh8 f7 Bf6+ Kh5 Qdc5 Qgf5 Kb5 Ba4+ Kc4 Bc2 Rh8 f8N Q5d6 Bb3+ Kc3 Nd7 Rg8 Nh4 Rg1 Ng2 Ng8 Kg4 Rgf1 Rb5 Qdd2 Rd5 Nh6+ Kh5 Nb4 Nf8 B6g5 Ra5 Re5 Be7 Qdd6 Rd5 Qdd8 Nd7 Na2 Bf6 Bh4 Bg5 Re7 Bf6+ Be5 Bg5 Bhg3 Bf6 Bf4 Bh4 Ng8 Kg4 Bh8 Qg6 Bf6 Qgf5 Nh6+
1Q2Qqn1/q4rPq/n1Nb2k1/1r1Rr3/3BRbNp/R5N1/2KB2b1/NB5Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 d4 h5 Kd2 a5 g4 e5 b6 h3 b5 h4 d6 c4 d5 a4 f6 e4 b7 a3 f5 c3+ Kc2 h2 g5 a2 d7 e3 d6 e2 b6 e1R Bd2 Re5 Na3 Re1 Bd3 Ra5 Ne2 Re5 Ng3 Na6 b8Q Re6 b7 Qe7 d8B Qc7 d7 R1e5 Re1 h1Q Re4 Qh2 Qh1 Qc5 Bb6 Qd5 d8R Qg1 Bd4 Qb5 Rd5 Bd6 g6+ Ke8 g7 Qb4 f7+ Ke7 f8N Kf7 f6 Re7 Bc5 Bh3 Ng6 Bg2 Bd4 Rhh5 Qe8+ Ke6 f7 Kf6 f8N Rf7 b8Q Qf2 Ne6 Qf5 Nd8 Rg5 Nf4 Qh7 Nfh5+ Kg6 Nf6 Rh5 Nc6 Rhg5 Rd1 a1Q Ng4 Qc5 Rf1 Qa7 Rf3 Qf1 Kb3 Rgf5 Bb1 c2 Rc3 c1B Nc2 Rg5 Na1 Qf6 Rf3 Qfe7 Kc2 Qf8 B2c3 Bf4 Bd2 Re7 Rd3 Rb7 Rf3 Re5 Ra3 Rb5
b1RN4/2n1PpRB/2nqQr2/2RN1b1r/N1KbB3/1q4QQ/2BB1q2/k1r5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 Ke2 Kd6 Kd3 Ke5 g4 h5 b4 c5 b6 a5 g6 h4 d6 a4 g5 h3 b7 h2 g7 a3 b5 f3 b6 f2 d7 a2 g6 Be7 Qg4 Ra4 Qe6+ Kf4 e5 Bg5 Nc3 Re4 Nh3+ Kf3 Bg2+ Kg3 Na4 f1R Rg1 h1B Nf4 Kf2 Nd5 Na6 b8Q Ke1 b7 Rg4 Be4 Kd1 Kc4 Nc7 d4 Ne7 g8B Rh5 g7 Nc6 Bgh7 Be3 g8B Rf4 Rg7 Rf6 Bhg6 Qe7 d8R Qd6 B8h7 Bg1 Qh3 Bf5 e6 Be3 Rb1 a1Q e7 Qb2 Qc8 Qf2 b8Q Bg2 Qe6 Rg1 Kc3 c4 Rb5 Rh1 Bd2 Bf3 Kb2 c3+ Kb3 c2 Rc8 c1Q Rc5 Qb1+ Kc4 Rg1 Nf4 Bh1 d5 Bd4 Qbb3+ Qc2+ Qbc3 Qb1 Qcg3 Bf3 Ba5 Kc1 Bb4 Qe5 d6 Rf1 d7 Qd6 d8N Qbb2 Kd3+ Kb1 Nd5 Ka1 Kc4 Rc1+ Bc2 B5g4 Bd3 Bf5 Bd2 Qb8 Be4 Qb4+ Kd3 Qb3+ Ndc3 Qb1 Kc4 Nb4 Bed3 Ba8 Nd5 Nc6 Be4 Qb3+
1Kn1B1Q1/q2pRNBQ/3PQq2/2BN4/k1r5/6qb/nbRNn3/rr2QR2 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ke2 h5 Ke3 e5 Ke4 a5 Kd5 e4 g4 e3 f4 e2 d4 e1N c4 a4 g5 h3 f6 a3 f7+ Ke7 c6 a2 c5 h4 g6 h2 c7 h3 g7 Nc6 b6 Ra6 b7 Ra3 b8Q Rh6 f5 Rh5 Bd3 Rh6 Qb6 Ra5 Bb2 Ra4 Nc3 Re6 Nf3 Qe8 Rf1 h1R Nd2 Nf3 Qe1 Ba6 c8R h2 Qb3 Nd8 c6 Ng1 c7 Ne2 Kc5 Re3 Kb6 Kd6 Ka7 Kc6 f6 Rc4 Kb8 Qe6 Bg6 Ne7 g8Q Bg7 f8Q Bb5 f7 Qf6 Rb1 a1Q d5+ Kc5 Qc2 Kb4 Qe8 Rd3 f8B Nc6+ Kb7 Qa4 Bf7 Rg3 Qch7 Rgg1 Ba3+ Ka5 Bc5 Nb4 Kb8 Na2 Bh5 Bh8 Bg7 Qb3 Rc1 Qa3 Rd8 Nc8 Qee6 Qb3 Re8 Ba6+ Nb5 Ka4 Rc2 Qg3 Nd6 Bb5 Nf7 Bc6 d6 Bg2 Rf3 Bh3 Re7 Rf1 Bg6 Rhg1 Rf5 h1Q Rf2 Qd5 Rf3 Rh1 Rf5 Rfg1 Rf1 Qdd4 Bh5 Nb6 c8N Qa1 Na7 Nc8 Nc6 Qad4 Nb4 Qa1 Rf5 Qad4 Nd5 Qde3 Qf2 Ra1 Bg6 Rhd1 Qe1 Rdc1 Rf1 Qa3 Nd8 Rd1 Be8 Rdb1+ Bb6 Qae3 Nf7 Qf5 Bh6 Bb2 Bg7 Qf6 Ba7 Qc5 Bb6 Qa5 Bc5 Qa7+
1r1b1N2/Bbp2r2/b1R2NB1/nQ1NqRr1/2B2n2/k1KQ1Pn1/2R1q3/5QQ1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 e5 Kd2 a5 b6 h5 g5 a4 f6 a3 b7 a2 f3 e4 b5 e3+ Kc3 h3 b6 h4 f7 h2 g6 h3 g7 e2 Nd2 e1N Ne2 Rh4 Ne4+ Kd7 d6 Kc6 d5+ Kb5 d7 Na6 b8Q Nd3 b7 Nh6 g8B Be7 f8N Rf4 d6 Qe8 d8R Nac5 d7 Nb3 Bh7 Ka4 Nf6 Nf5 Bg6 Ng3 Be3 Ka3 Rc1 Na5 Qa7 Rb8 Rc2 a1R Rg1 h1B Qd4 Rf5 Nf4 h2 N4d5 Nf4 Bc4 Bg2 Qf1 h1Q Qdd3 Qh5 Ba7 Rg5 Rh1 Qh8 Rh6 Re1 Qd4 Bh3 Qdg1 Bf5 Rh5 Bd3 Rh6 Ree5 Rh5 Ref5 Rh6 Ra8 b8Q Bb7 Rc8 Be2 d8Q Bd3 Qd7 Bd8 Qb5 Qe2 Qbb1 Ba6 Q8b5 Be4 Qbd1 Rb8 Qd3 Be7 Re8 Bd8 Re5 Qg7 Ng4 Rf7 Ngf6 Rd7 Rf5 Qe7 Nb6 Beb7 Nbd5 Q7e3 Rh7 Qe4 Re7 Q4e3 Re6 Rf7 Rc6 Qe5+
Nb1bB3/NR6/b1R4R/1B1K1Qp1/n1RB1n2/4qQPb/3rNr2/1n1kbQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Qd6 h5 Qg6 hxg6 Bd6 Qb3 Ba3 Qd1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 d4 h5 d6 f5+ Ke5 c5 d5 a5 g7 a4 g3 f3 d7 f4 d8N h4 b6 f2 b7 f3 d6 h3 b5 h2 d7 a3 b6 a2 Bh3 f1N e4 f2 Ne2 Na6 b8R Ne7 g8Q+ Nd5 b7 Nd2 Bf1 Kd3 Qf7 c4 Nc6 c3 d8Q c2 Bb2 c1B Nbc3 Be7 Nb5 Bh3 Nca7 Rf8 Qd7 Bd8 Rc8 Nc5 b8R Na4 Qdf5 Nf4 Bd4 Ba3 Rb1 a1B Rc4 Bc3 Nc7 Bae7 Qe1 Kc2 R1b6 Nb1 R8b7 Bf6+ Kd6 Be5+ Kc6 Rb8 Na8 Bec7 Qh5 Rc8 Qf3 Bb8+ Kb5 Rc7 Rbc6 Rd7 e5+ Nd3 Qf7 Nf4 e6 Rd6 e7 Rd7 Rg1 h1Q e8B Qh2 Rh1 Qg1 Bg7 Rd2 Bd4 Bd7 Rh6 Bh3 Bg2 f1B Qf5+ Nd3 Qef2 Kd1 Bh1 Nf4 Q2g2 Nb6 Kc5 Qe3 Qg1 Rd3 Qgf2 Be1 Q2g2 Rd2 Qgf2 Bfg2 Qf1 Na4+ Kb4 Rh8 Rcb6 Qe4 Q3f2 Bf3 Rg7 Rh7 Rhg6 Rh5 Rh6 Bhg2 Re7 Nb2 Kc5 Qe3 Ra6 Bc6 Rb7 Rh2 Rab6 Ba4 Ra6 Bh3 Bhc6 Rg2 Qf3 Bb5 Rab6 Ba6 Bb5 Rf2 Rbc6 Ng2 Kd5 Na4 Q5f4 Nc5 Q4g4 Na4 Qgf5 Nf4+
1RbNR2B/5K2/3b4/P1p1q1b1/k2r1BNQ/n2QR3/BbRrn2b/1Qn1N3 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Kd3 g5 Kc4 e5 d4 c5 a4 g3 h4 e4 f4 g2 h5 b6 f6 e3 d6 Kc6 d7 g4 f7 e2 h6 e1B h7 g3 f5 Bd6 f8R Nh6 d5+ Kb7 f6 Ka6 f7 Nf5 Re8 Nh6 f8R Ng4 Rh3 Bb4 Qd3 Qh4 d8N Nc6 Nc3 Ba3 Nf3 g1B Nd1 g2 Nf2 Qh5 Ne1 Qe5 Ra2 Bh2 Bf4 g1B Rc2 Nd4 Re3 Ne2 Bg2 Rg8 h8B Bb2 Be4 Rg7 Bh7 Raa7 Bg8 Rad7 Be6 Rh7 Bf7 Rh4 Be6 Nf6 Ng4 Ne4 Bg8 Nc1 Be6 Be7 d6 Ng3 Rg8 Bg5 Bd5 Ka7 a6 Nge2 a5 Bg3 Be6 B1h2 Rgf8 Qc3+ Kd5 b5 Bf7 b4 Ke6 b3 Rg8 Ba1 Rgf8 b2 Rg8 b1N Rgf8 Rc7+ d7 Bb2 Bg8 Na3 Kf7 Ka8 a7 Qe5 Kg6 Rb7 Ba2 Rb4 Kf7 Rd4 Nc6 Kb7 a8Q+ Kc7 Nd8 Rh6 Qaa6 Rhd6 Qb3 Rd2 Qad3 Rd4 Qbb5 Bc3 Qb1 Bb2 Nb7 Kc6 d8Q Nc4 Qe7 Kb5 Nd8 Ka4 Qf6 Na3 Rg8 Bh6 Qh4 Bg5 Rg6 Be7 Rb6 Bd6 Rb8 Bf2 Qhh7 Bh4 Qh5 Bhe7 Qh4 Bg5
1bn2RN1/3R3Q/k1pr1r2/1r1BPNR1/1rrB1n1Q/B4b2/4qQ1N/1n3BK1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 h5 g4 a5 d4 f5 e4 f3 d6 c6 d5 h4 e5 h3 g6 f4 g7 a4 g5 h2 b6 a3 g6 a2 b5 Ra4 b7 Rh6 b6 Rh4 Ne2 Rh6 Ba3 Nf6 g8N Rc4 g7 Nh5 Rg1 h1R Qd3 Rh4 Rg5 Rf6 Kg1 f2+ Kg2 Rg4+ Ng3 f3+ Kh1 Rgd4 Qh7 Nf4 Nd2 Rb4 Rc1 a1R Nf5 Rdc4 Rd1 Rab1 Kh2 Qe8 Kh1 Kd8 d7 Bd6 Kh2 Rb5 Kh1 R1b4 Kh2 Na6 b8Q Nc7 b7 Na8 Qa7 Kc7 d8R Nb6 Kh1 Qg6 Rf8 Bd7 Kh2 Nc8 Qe3 Be6 b8B+ Kb7 Ba7 Ka6 Bd4 Bb8 d6 Bd5 d7 Rd6 d8Q Qf7 Qf6 Qe8 Qfh6 Be4 Qh4 Qh5 Ngh6 Qg4 g8B Qh5 Bd5 Qg4 Bg2 f1R Ng8 f2 Bh3 Qe2 Nf3 Re1 Qd2 f1N+ Kg1 Rf6 Qe3 Nd2+ Bf1 Nb1 Nh2 Bf3 Rd3 Rd1 Qef2 Bc7 Rg7 Bb8 Rd7 Bg2 Rg3 Bf3 Rg5 Rdc1 Be3 Ra5 Bf7 Rd1 Be6 Rdd5 Bd4 Rd6 Bd5 Rab5
RrBnn2Q/3B1kpb/3b1N2/2K2Nr1/rnR2BN1/Q4QP1/8/B1q1rrR1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 Kf2 f5 h4 c5 d4 a5 e4 a4 b4 c4 b6 c3 g3 c2 b7 a3 b5 a2 e5 f3 Ke3 f2 e6 Qb6 d6 Qc6 b6 Ra3+ Nc3 Ra7 e7 Bd7 d5 f4+ Kd4 f3 h5 Be6 d7+ Kf7 d8N+ Ke8 h6 Ra8 d6 Qc7 Qf5 Qc8 h7 Ra7 Nf7 Ra8 Bf4 c1R Nge2 Ra3 Bh3 f1N Rg1 f2 Ne5 Re1 Ne4 Rf3 Rc1 a1R Ng4 Rc3 Nef6+ Kf7 d7 Rc5 d8R Qc7 e8B+ Ke7 Bd7 Ne3 Rc4 f1R Qd3 Bd5 Qa3 Be4 Rc8 Nd5 Be5 Na6 b8Q Ndb4 b7 Nh6 Qa8 Kf7 b8B Bd6 Qc6 Re8 h8Q Bh7 Qcf3 Qc6 Bf4 Rg5 Bc7 Ra2 Ra8 Rb8 Bb6 Nc7 Ba5 Nd3 Bc3 Nb4 Ba1 Ne8 Bc8 Kg6 Bd7 Nf7 Bc8 Nd8 Bd7 Qa6 Bc8 Kf7 Bd7 Be5+ Kc5 Qa4 Nd4 Qc2 Nf5 Qc1 Qad3 Ra4 Qa3 Rf2 Bf1 Bc7 Bd3 Rff1 Be4 Rd1 Bb7 Rde1 Bbc8 Bd6+
1Q1NN3/KrrpNNn1/R1rB4/Q1b5/1Q2rRR1/2n5/bq1P1rB1/1kb3B1 w - - 0 1 illegal: No possible last move, all moves rejected
N5B1/RB3b2/2Nb1QR1/bkr5/2p2b2/1Pr2nKN/RQQrq3/2BnQ1n1 w - - 0 1 illegal: No possible last move, all moves rejected
1B1bN2r/1B3N2/QR2N2R/3QQ1br/2pnbPB1/1nb1r3/3RBK1n/3q3k w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 b4 Kf7 g4 Kg6 d4 c5 b6 e5 b7 h5 d6 a5 d7 a4 d5 a3 b5 a2 b6 h4 d6 h3 Ne2 h2 Nd4 c4 Ne6 e3 Qa4 e4 Qa6 e2 Na3 Bh6 Nb5 Nc6 b8R Nce7 b7 Qe8 d8Q Qf8 d7 Nf6 Nd6 Nc6 Ne8 Qd6 Bf4 Nd4 Rd1 a1N Rd2 Nab3 f3 Ra7 Kf2 Ra8 Qda5 Qd5 d8N e1B+ Ke3 Bg3 Be2 Bh4 Nf7 Bd7 Be5 Bc6 f4 Qd7 Qd5 Ra7 Rb1 h1R Rd8 Qd6 b8Q Re7 Rc8 Bb7 Rc6 Qd7 Rb6 Qa4 Rbd1 Qa1 Rg1 Qd1 Rg3 Bc6 Kf2 Rh3 Qbd6 Bb7 Q6c5 Ba8 Bb8 e3+ Kg2 Rh1 Rh3 Bb7 Qd6 Bc6 Qe5 Bb7 Bf1 e2 Rh2 e1B Be2 Nh5 Rh3 Ng3 Rh2 Nf1 Rh3 Ba8 Rh2 Kh7 Rh3 Nh2 g6+ Kg8 g7 Kh7 g8B+ Kg6 g5 Bc6 Rf3 Kh5 g6+ Kg4 g7 B6g5 Bh7 Bb7 g8B Ba8 Be4 Bc6 Rdd3 Bc3 Rd2 Rh5 N8c7 Re8 Bgh7 Rh8 Ne8 Re1 Bhg6 Bd8 Bh7 Bhe7 Kf2 Bg5 Bhf5+ Kh4 Bg4 Ba8 Ke3 Bb7 Rf1 Kg3 Rf3+ Kg2 Rh3+ Ndf3 Rh4 Kh1 Kf2 Bc6 Bf1 Re3 Be2 R5h7 Rh6 Bb7 Rg6 Rh5 Rh6 Bc8 Nd4 Bf5 Ne6 Bh7 Qdd4 Bg6 Bb7 Be4 Qdd5 Nfd4
2b2R2/Nk2br2/1rnnP2b/1Q1Q1rB1/2rN2Q1/1p1NK1Q1/6Bn/R2RB1q1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 e4 g5 d4 c5 h4 Kc7 a4 f5 h6 b5 e6 g4 h7 b3 e7 g3+ Ke3 b2 e8Q c4 a5 b4 h5 c3 h6 c2 a6 g2 a7 b3 e5 Kb6 d6 Be7 d5 Nf6 e6 Rf8 h8B Qc7 d7 Bb4 d8Q Bc3 d6 Bb4 d7 Ba3 h7 Rf7 Nf3 g1N Ne1 Be7 Bg2 Ne4 Nd2 b1R Bc3 Nd6 h8Q Nc6 Qe5 Rb8 a8R Nf3 Qg3 Kb7 Nd3 Nh2 Nf3 Qb6+ Nd4 Rb2 B1d2 c1B Qdg4 Rc2 Rd1 Qc5 Bb4 Rc4 Qa5 Qb6 Qd5 f4+ Ke2 f3+ Ke3 f2 d8N+ Kc7 Ba5 f1R Bc3 Na7 Qeb5 R1f5 Nc6 Qc5 Bb4 Rb6 Bc3 Kb7 Ba5 Bd7 Rf8 Bc8 Bc3 Ba3 Bc1 Bb4 Be1 Bd2+ Ke2 Bh6 Bg5 Kc7 Nd8 Nc6 Ke3 Nb4 Nc6 Kb7 Na7+ Nc6 Be4 Qa3 Bf3 Qa2 Be4 Qg2 Bf3 Qh1 Bg2 Qg1+
1N2Q1N1/nBn1bR1p/r2R1Bk1/1r1nr3/b3RK2/1P1QR1B1/6Q1/bq1Nb3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 c5 g4 a5 d4 e5 d6 a4 d5 a3 d7 a2 f6 e4+ Kf4 e3 g5 e2 b3 e1R d6 c4 g6+ Ke6 b6 c3 f7 Kf6 b7 c2 g7 h3 Bg2 h2 Qd2 Qc7 d8R Be7 f8Q+ Kg6 Ne2 Ra5 Nbc3 Qc5 d7 Rf1 Nd4 Qa3 Nd1 Nc6 b8B Ra4 Bb2 Nf6 g8N Na7 Bb7 Ra6 Nc6 Ne8 Bf6 c1B f3 Rf2 Re1 h1N Re4 Ng3 Bbe5 Qa5 Nb8 Nc7 Re3 Rh2 Qg2 Qe1 Re8 Qf1 d8Q Rh5 Qd3+ Bf5 Rd8 Bd2 Rd6 Be1 Rc1 a1B Rc4 Qh1 Rce4 Be6 Qe8+ Bf7 Kg4 Ne2 Bg3 Rb5 f4 Nc3 Kf3 N3d5 f5+ Kh5 Bg5 Bg6 f6 Qg1 f7 Bf5 Re5 Bd7 R5e4 Qh1 Bf6 Kg6 Qd8 Be8 f8R Bd7 Rf7 Bc6 Nh6 Re8 Ng8 Qg1 Kg4 Qf1 Qc4 Qd3 Qc3 Qb1 Qd3 Bf8 Qd7 Re5 Qe8 Be7 Kf3 Rb4 Kg4 Ba4 Kf3 Rb5 Kg4 Nb4 Kf4 Nbd5+
1NBBn3/1r2nRp1/2NkbnQ1/6N1/bb6/1P1nrRq1/1r3RB1/QK1N1Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 d4 c5 Kd2 a5 Kc2 f5 h4 c4 d6 c3 h6 f3 b6 f2 h5 a4 b3 f4 b7 a3 d5 f3 h7 a2 h6 Nf6 e5 Ra7 e6+ Ke8 d7+ Ke7 Bg5 Qb6 d8R Qc5 Nh3 Ra4 Bg2 f1B Rh2 f2 Rd7+ Ke8 d6 Qe3 e7 Bc4 Qf1 Nc6 b8N Qg3 Rc7 Rg8 h8Q B8e6 h7 Bb5 d7+ Kf7 e8B+ Ke7 d8N+ Kd6 Bg6 Rb4 Bf5 Ba4 Rf7 Ne7 Ndc6 Ne8 Bh4 Rb5 Ng5 Rb7 Kc1 c2 Nc3 Rb6 Rb1 a1R Nd1 Rb7 Rh3 Ra2 Rb2 Bd5 Bc8 Be6 Kd2 c1N Kc2 Nd3 Kb1 Qg4 Rhf3 Qg3 Qe1 f1N Rbf2 Nh2 Qf1 Nd5 Na7 Be7 Nac6 Rf8 Qg8 Ng4 h8Q Ngf6 Qh6 Re2 Qg6 Re3 Q8h7 Rh8 Qhh5 Bf8 Qg4 Ne7 Qc4 Rh7 Qc3 Rh6 Qa1 Rh5 Nh7 Rc5 Ng5 Rc2 Rd2 Ra2 Rdf2 Neg8 Na7 Nd7 Na6 Kd5 Nc6 Bb4 Nh3 Kd6 Bd8 Ndf6 Nab8 Ne7 Ng5 Rb2+
4rNnr/1P1N4/N1nQ4/6q1/RNBb2K1/pQ1n2nQ/5bRB/rbk2BR1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 g4 Kc5 b4+ Kd4 d6 a5 d7 e5 g5 h5 g6 c5 f6 a4 f7 c4 b6 h3 g7 c3 b7 h2 b5 c2 b6 h4 Kg4 h3 f4 e4 f5 e3 f6 e2 Nc3 Kd3 Na2 Rh5 Nf3 Rh7 Rg1 h1R Nb4+ Ke4 d4 e1N d5 h2 d6 Rh8 Bf4 c1B Ne5 Ne7 g8B Ng6 Qb3 Nc6 b8N Bb2 b7 Nd3 N8a6 Bd4 Rg2 Bh6 f8Q a3 Bc4 Nge7 f7 Ng8 Rd1 Bg5 Qh6 Bh4 f8N Bhf2 Qh3 Qe7 Bg3 Ke3 Ra1 Rg1 Rb1 h1N Bh2+ Kd2 Re1 Ng3 Rb1 Nf5 d8R Qf6 d7 Ng3 Re8 Rh1 Re6 Rg1 d8Q Qe7 Qd6 Qg5+ Kf3 Rh1 Ned7 Rg1 Rg6 Rb8 Rb2+ Kc1 Re2 Rh1 Re5 Rg1 Ra5 Ra8 Ra4 Rb8 Ndc5 Bf5 Ncd7 Re8 Rg7 Nb2 Rg6 Bb1 Rg7 Nd3 Rg6 Qd8 Kg4 Qe7 Rg7 Qg5+ Kf3 Qf6+ Kg4 Nh1 Re7 Kd2 Re1 Ng3 Be2 Ba2 Rc1 Qd8 Rc3 Ra1 Rc1 Bb1 Rcg1 Qe7 Bf1 Kc1 Ndb8 Qe3 Nbd7 Qg5+
N1bQ4/1b3BN1/2R2PB1/5QB1/2q2R1n/1N1pk1Bq/RQnbrb2/K2r2b1 w - - 0 1 illegal: No possible last move
2RQrn2/3p4/2B3Rq/2qn4/1Q5B/r3kPbn/1NBNbN2/1RnnRQK1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 Kf7 b4 Kf6 h4 Ke5 h6 Ke4 b6 g5 f3+ Ke5 Kf2 a5 c5 g4 c6 e6 h5 a4 b7 d3 f6 Kd4 b5 e5 h7 a3 f7 a2 c7 d2 h6 e4 b6 Ra4 Bd3 Bc5 f8N Ra6 Qf1 Qe7 Bc2 Bd6 Nh3 d1N+ Kg1 e3 Nd2 e2 Rb1 e1N Ne6+ Ke3 Nef4 a1Q Nd3 g3 Nb2 g2 Nf2 Nc6 b8R Nd8 b7 Nf6 Ra8 Bg3 b8Q Nd5 Qb4 Rf8 h8Q Nd3 h7 Ra3 Ra6 Qc5 Rg6 Ba6 c8B Ne6 Bb7 Re8 Bc6 Nf8 Qf6 Qa2 h8R Qac4 Qd8 Qf4 Na4 Bc4 Bb2 Qh4 Bf6 Nc1 Nb2 Qh6 Bh4 Ne6 Rf8 Be2 Rf4 Nf8 Rc4 Qb6 B6a4 Qd6 Rc8 Qc5 Bc6 Qd4 Qe1 N1c3 Qd1 Bf4 Qe1 Bg5 Kh2 g1N Rb8 Nd1 Rc8 Nh3 Qg1 Qc5 Qg2 Nhf4 Re1 Nh3 Qf1 Bf4+ Kh1 Bg3 Kg2 Ng5 Kg1 Nh3+
r2Q2Q1/r3R3/Bn3b2/2R1B3/2B1bnQK/2R5/1pR2PNn/qkqbN1Nn w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kd7 d4 Kd6 h4 e5 h6 c5 h7 g5 h5 b5 f6 g4 f7 b3 h6 e4 a5 g3 a6 b4 a7 e3 Ba6 c4 Rh5 b2 Kf1 c3 Kg2 c2 Qg4 e2 Kh3 e1Q Ra3 g2 Rc3 b3 Nd2 b1B Bb2 c1N Ndf3 Nf6 Kh4 Bg7 f8R Ne2 Re8 Qa5 Re7 Qc1 Ne1 Ng3 Rg5 Rd8 h8R Nbd7 h7 Nfh5 Rhe8 Qa1 h8Q Nh1 Qg8 Bb7 Rf5 Rdb8 Rec8 Nf4 Rc2 Nb6 R8c3 Rf8 Bc4 Rf7 Rg5 Rb8 a8B Bf6 Ba6 Rg7 Bc4 Bc8 Bb7 Ra8 Bba6 Bd7 Rd2 Be4 Rdc2 Kc7 d6+ Kc6 d5+ Kc5 Ba3+ Kd4 Bb2 Ba4 d7 Rf7 d8N Rg7 d6 Rf7 Ba3 b2 d7 Bb3 Bd6 Rg7 Re2 Bd1 Rec2 Rf7 Nb7 Rg7 d8Q Rf7 Nc5 Rg7 Nh3 g1N Ng2 Rf7 Nd3 Rg7 Qgc8 Rf7 Nde1 Nf3+ Kg4 Nh2+ Kh4 Rg7 Ng1 Rf7 Qg4 Rg7 Re6 Rga7 Be5+ Kc5 Bb3+ Kb4 Re7 Ka3 Rd2 Bdc2 Bbc4+ Bb3 Re2 Ka2 Rec2 Kb1 Bb8 Bh8 Rc5 Ba4 Be5 Bb3 Rd2 Bd1 Rdc2 Bf6+
5Q1K/Q4Rrb/1qN2B2/2R2P1B/4N1b1/1k2b1Q1/q1N1p1rq/1NBRnb1n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 g7 c3 f7 h4 d6 c2 b6 h3 b7 Kb3 Ne2 Rh7 Qe1 Nf6 g8N Ne4 Nf6 Na6 b8R+ Qb6 d8B Bg4 d7 Nb4 Rb7 Ng3 Ne4 Bh6 f8Q Rg7 f5 Be3 Rg1 Nh1 Qg3 e6 Kf6 Nd3 Rc7 Ne1 Rc5 Ra4 Bg2 Rd4 Be7 Rd2 d8N e5+ Nc6 Rd4 Bf3 Rd2 Nf4 Rf2 Nd5 Rg2 Bd2 c1Q Nb4 Qc2 Bc1 Qe2 Nc2 Qd2 Nec3 e4 Rf1 Nd3 Rd1 Ne1 Bd8 Bf4 Be2 e3 Ne4 Bh6 Bf3 e2 Be7 Qf4 Rd7 Qfb8 Bd8 Be3 Rf7 Bh5 Bg4 Bg6 Bh5 Bh7 Be7 Nf2 Bd8 h1B Be7 h2 Bd8 Ka4 b4 Kb3 b5 Rg1 Bg4 Bf3 Bh5 h1B Be7 Rg2 Bd8 Q6c7 b6 Bg4 b7 Qb6 Be7 Qf4 b8Q Qc7 Qa7 Qf4 Qf3 Qh2 Qf4 Rg1 Qg3 Bg2 Bd8 Nh1 Be7 Bf1 Bd8 Rg5 Be7 Rg2 Bd8 Bg6 Kg7 Bh7+ Kh8 Rg6 Bf6 Rg7 Nbc3 Qh3 Bd2 Qh4 Rd1 a1Q Bc1 Qh2 Nb1 Qa2
q1N2Q1b/1Q1N4/B2NN2b/1nq1PK1R/2q4R/1B2qbp1/2n1rB1Q/1kr1R3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kf4 f5 b4 c5 h4 g6 d4 a4 e4 a3 e6 Kd6 e5+ Kc7 h5 Kb6 d6 c4 e7 a2 e8B g3 d7 c3 d5 c2 d6 g2 h6 Nc6 h7 Qe7 d8N Bg7 d7 Nd4 Qh5 Nh6 Nf7 Ng4 Na3 Qc5 Rh4 Bb7 Be3 c1B Nd6 Rc8 Ne2 g1Q Bf7 Bf3 d8Q+ Rc7 Kg5 f4 Bb3 Rg8 Qh6 Bh8 Bf2 Rf8 Rb1 a1Q Qd7 Bd2 Re1 Rg8 Qf8 Ne3+ Qg4 Rc8 Qg3 Nec2 Rh5 Rg7 Kf6 g5 Qh2 g4 Nac4+ Kc7 b6+ Kc6 b7 Kd5 b8N Qa8 Rh4 Nb5 Nd7 g3 Nd4 Rg4+ Kf5 Bc1 Ne6 Rc7 Bd4 Qe3 Rh5 Rh4 Nc8 Rc6 Qh1 Rh2 Bd3 Re2 Qh2 Qd2 Bf2 Qde3 Ng5 Kd4 Ne6+ Kc3 N4d6 Kb2 Rh4 Nba3 b5 Kb1 b6 Nb5 b7 Bg2 b8Q Qc3 Rh1 Na3 Nb7 Qed2 Nbc5 Rd6 Rh5 Bf6 Ne4 Qc5 Ba6 Nb5 h8R Bg7 R8h6 Bh8 Be1 Qdc3 Rh4 Rd1 R4h5 Bd2 Rg5 Rc1 Ned6 Q3c4 Nd8 f3 Qb7 f2 Ne6 Bf3 Rh4 Be3 Rgh5 Bf4 Bc3 Bh6 Re1 f1Q Bd4 Qf2 Be3 Rd2 Bd4 Qfe2 Bg1 Qee3 Bf2 Re2
rNbb3R/2b2k2/3bq1RQ/1QBNpP2/6N1/nQ2q1q1/B2n2B1/K3rRB1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 a5 d4 c5 Kd2 h5 Kc3 h3 Kb2 h2 g4 h4 g5 a4 d6 c4 f6 h3 b6 Ra7 b5 Re7 g6 Bg4 g7 Re6 d7+ Kf7 d5 Re8 b7 Qe7 d8Q Nd7 b8Q Nb6 d6 Bc8 f5 Qe6 d7 Bd6 Nc3 a3+ Ka2 Rh7 Nd5 c3 Nf3 c2 Rg1 h1Q Bg2 h2 Be3 c1B Qb3 Nc4 b6 Rh5 Bf2 Bg5 b7 Rf8 Rgf1 Qg1 Qdb6 h1Q d8R Qh4 Nh2 Qg3 Ng4 Rh1 Rad1 Bc7 Ka1 a2 Rc1 Na3 Rc6 Bd6 Q6e3 Bh4 Qh6 Qe3 Qb5 Qh2 Bg1 Qhg3 Qa7 Bg5 b8N+ Bc7 Qaa4 Re8 Kb2 a1B+ Ka2 Bc3 Qab3 Bb4 Ka1 Bbd6 Rb6 Ne7 Ra6 Nc6 Rb6 Re7 Rh8 Nd4 Rc6 Nf3 g8B+ Ke8 Ra6+ Rd7 Rb6 Nd2 Rc6 Rg7 f7+ Kf8 Nc3 Ke7 f8B+ Ke8 Nd5 Bgd8 Nh2 Rg4 Be7 Ra4 Ng4 Bb4 Bc5 Ra8 Bb6 Bbd6 Bc5 Qd7 Nf4 Ke7 Bc4 Qe8 Nd5+ Kf7 Rb6 B6e7 Rg6 Bed6 Qc3 Qd7 Ba2 Qe6 Qcb3 Rh2 Be4 Re2 Bg2 Re1+
1N1QBNR1/4qnr1/1B1q1rRQ/1RQpq1P1/4bb1B/3N3K/nn2k3/4q1R1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 e5 Kf2 h5 Kg3 a5 b4 e4 c5 a4 c6 d6 b6 a3 g6+ Kf6 c7 a2 b7 h4+ Kh3 d3 g4 d2 g5+ Kg7 b5 e3 b6 e2 Nf3 e1Q Ne5 Qe4 Rg1 Qe8 Bb5 Na6 b8R Bb7 c8Q Qd7 Qc5 Bd5 b7 Rh6 Na3 Ra7 Nc6 Qee7 Nc4 Nb4 Nb2 Be4 Nd3 d5 Qh5 d1N Be3 Qdd6 f6+ Kh8 f5 Nb2 g7+ Kh7 Rac1 a1Q f7 Na2 Rcf1 Qe1 f6 Qc3 Rb1 Qd4 Ra8 Q4e5 b8B Rd7 Ra6 Rb7 Qe2 Kg6 Qh2 Kh5 Bf2 Rg6 Ba7 Nh6 g8R Rg7 Bg3 Rb6 Nb8 Rc6 Qh1 Rb6 Be8 Rc6 Kh2 Kg4 Bb6 h3 Qc4 Qb7 Qc5 Be7 f8Q Nf7 Rgf1 Bd8 Rg1 Qbd7 Qe7 Bc7 Qd8 Q7e6 Qc4 Qee7 Qc5 Na4 Rb5 Nb2 Rg2 Kf3 Rg1+ Ke2 Rb3 Nh8 f7 Qg6 f8N Rf6 Rb5 Nf7 Bf4 Bd6 Kg3 h2 Kh3 Bc7 Bg3 Bd6 Bf2 Bc7 Qg2 h1Q+ Qh2 Qf3+ Bg3+ Qf2 Bh4 Qh6 Qf4 Qe1 Qf5 Q5c3 Qh7 Qg6 Qh6 Bf4 Ra7 Qce5 Rd7 Rf5 Rd6 Qge6 Rc6 Q6d7 Rf6 Qdd6 Rg6 Rf6
1Q2N1Q1/3Q2n1/q4rp1/1Qq1RBr1/1Rq3Pq/1BKnB1b1/4NR2/kb4nN w - - 0 1 illegal: No possible last move, all moves rejected
2r1q2k/q1R1Bq1B/nRr1p2Q/2R2BR1/1rb2QNP/5K1r/4Qn2/b3NN2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 b4 g5 h4 Kg7 f4 a5 c4 d5 h6+ Kh7 c5 g4 c6 g3 b6 d3+ Kf3 d4 b5 a4 b7 g2 b6 a3 c7 d2 f6 a2 f7 d3 f5 Qd7 f6 Ra5 Ba3 Nc6 b8Q Rc5 b7 Rd5 Qe2 d1Q Nd2 Qe1 Rc1 a1Q Rc5 Bg7 f8Q Qe8 f7 Be6 c8B Nf6 Qf4 Rd6 b8R Bc4 Rb6 Ng4 Bf5+ Rg6 Rh3 Nb8 Rg3 Nf2 Rg5 Na6 Rc7 e6 Be7 Rg8 Rc5 Kh8 h7 Qa5 Rc7 Ba1 Qh6 Qa2 f8R Rf6 Ne4 d2 Ng3 d1R Rf7 Rc1 Rc5 Rf8 Bb1 Bb2 Qf5 Qd2 Qe5 Bd3 Rc4 Nb8 Qe3 Ba1 Kf4 Nd1 Bb4 Qe7 Nf3 g1R Bh3 Rh1 Nf1 Nf2 Ne1 Rc8 Kf3 Qaa7 Qe2 Qe8 Rfc7 Na6 Be7 Qb4 Rc3 Qf7 Bg4 Qb5 R3c6 Rc4 Bh3 Rb4 Qf4 Rf5 Rc3 Rd5 R3c5 Bc4 Bg6 Qbe8 Bhf5 Ra4 Qh5 Kg7 h8N Rb4 Bh7+ Qg6 Nf7 Rd6 Ne5 Rc6 Ng4 Kh8 Qh6 Qgf7 Ra5 Rh2 Rc5 Rh3+
1n1bR3/1RBQ1rrq/nP2K3/1rQR4/5Rpn/1B6/QNb4k/B1N1Nq1n w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 Kh4 d4 a5 f4 g5 b4 c5 f6 c4 f7 a4 f5 c3 b6 c2 d6 a3 f6 g3 d7 e6 b5 g2 d5 a2 b7 g4 b6 Qe8 d8N Qe7 d6 Ra6 d7 Ra8 Nd2 Qb4 Nc6 Nh6 d8R Rg8 Bb2 c1R Na5 Rc7 Ngf3+ Kh3 Ndb3 Rc2 Rd5 Qe7 Ne1 Rg7 Bc4 g1Q Nc1 Rf2 Bb3 Qf1 Nc4 Nf5 Bc3 Rf3 Nb2 Ng3 Rb1 a1N Bd4 Na6 b8B Nc2 Bc7 Nb8 Ra1 Rf4 Ra7 Nb4 Rb7 Ra5 Rg1 Rb5 Qc2 Qg2 Rf1 N4a6 Qb1 Qd7 Qa2 Be7 f8R Bd8 f7 Nh1 Re8 Rf6 f8Q Rff7 Rf4 Qf1 Qc5 Qe7 Ne2 Qh4 Nc1 Qh7 Kd6 e5 Bc3 e4 Bd4 Nd7 Ke6 e3 Bc3 e2 B3e5 Kh4 h3 Kg3 h4 Kh3 h5 Kh2 h6 Ndb8+ Kd6 Qd3 h7 Bf5 h8Q+ Qdh3 Qh7 Bc2 Qd3 Qh4 Ke6 Qh7 Ng2 e1N Bf6 Nf3 Ne1 Rb4 Qdb5 Nh4 Qd7 Bd3 Nd1+ Bc2 Ba1 Rb5 Nb2 Bg6 Qb1 Bd3 Qa2 Bc2
1R2r1b1/Q4B1k/PbpQ4/1BR1qq1N/1b3Bq1/n2Rb1NQ/n2R4/K2N1r2 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 d4 Kf7 Kd2 g5 Kc2 Kg7 Kb2 e5 h4 b5 a4 e4 f4 b4 a6 b3 a5 e3 f6+ Kh7 a7 g3 h5 g2 h6 e2 d6 e1B d5 g4 d7 g3 f5 Bfb4 d6 Bc5 f7 Qh4 d8N Ba6 f8Q Qh2 d7 Be7 f6 Bc8 f7 Bf6+ Qd4 Qh3 a6 Ne7 Rh2 Nec6 Bb5 Qg4 Ra5 Bb4 Qd6 Re8 f8R Bg5 Ka1 Ne5 Nc3 Nbc6 Ne6 Be3 d8R Nc4 Ng7 Be6 Nge2 g1B Nd1 g2 Nh5 Bg8 Neg3 Na3 Q4c5 Rb8 a8B Qf4 Qa7 Qe5+ Nc3 Bb6 Bf4 Bge3 Bb7 Ra8 Bc8 Rb8 Be6 Rc8 Bf7 g1Q+ Bf1 Qg2 Rc5 Qge4 Rd2 b2+ Ka2 Qf3 Bb5 Qg4 Nd1 Rb8 Qf6 Rc8 R8d3 Rcd8 Qe6 Rd6 Qd5 Rf6 Qd6 Rf5 Bg5 Rf1 Bf4 Re6 Rb8 Re8 Kb3 Kh8 h7 b1Q+ Rb2 Qc2+ Ka2 Qf2 Ka1 Qc2 Rdc3 Qcf5 Rh2 Nd4 Ra2 c6 Rd3 Ne2+ Rb2 Nc3 Ra2 Qe7 Rad2 Na2 Nf6 Kg7 h8Q+ Kf8 Qh3 Kg7 Nfh5+ Kh7 Qa8 Qee4 Qa7 Qee5+
3q2B1/3b2Rp/rnnbQb1b/4R3/1B2N1QN/BKP5/R1Qr3k/1nNRq3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 g4 e5 f4 a5 b4 d5 f6 Kg6 b6 e4 b5 a4 f5+ Kf7 g6+ Ke8 g7 Kd7 g5 Kd6 b7 Ke5 b6 Kf4 g6 Kg3 c3 d3 f7 a3 f6 d4 Ra2 Nd7 b8R Bd6 f8N Ne7 g8Q Ra6 g7 Nc6 b7 Nb6 f7 Bd7 Qc2 e3+ Kd1 d2 Bc4 Kg2 Ng6 Kg3 f8B Kg2 Qb3 e2+ Kc2 e1B Ne2 d1N Qe6 Nb2 g8R Bh4 Rg7 Bf6 Rd1 Kh2 Nh4 Rg8 Qa4 d3+ Kb3 d2 Qg4 Rh8 Bg8 N2c4 Qe6 Bg3 Bb4 Bd6 Bf7 Re8 Bg8 Re7 Qg4 Re3 Ra8 Rd3 b8Q Rd4 Qc8 Rd5 Rc2 a2 Bca3 a1B Ra2 Bb2 Ra7 Bc1 Rb7 Be6 Rbe7 Bd7 Re5 Rd4 Qa5 Rd3 Qd5 Rd4 Qde4 Rd5 Qc2 Rd4 Rg1 d1Q Nd2 Qe1 Ne4 Bh6 Nc1+ Rd2 Qe6 Qf2 Rd1 Qe1 Bb2 Na3 Qg4 Nb1 B2a3 Be8 Qce6 Bd7
Bn1N2kr/2Q2p2/2b1q3/2B1Q1bb/2Bn3P/1QQb1R1R/q1R1rn2/NNK5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 b4 d5 h4 g5 e4 d3 c4 g4 e6 g3 h6 d4 e5 g2 h7 a4 c5 a3 c6 a2 c7 Ra7 e7 Ra3 b6 Ra7 b5 Bg7 b7 Qd7 b6 Qd5 Ba3 Bf5 c8R+ Qd8 Ne2 g1Q Rh3 Qg4 Kc1 Nh6 Bc5 Ra4 Qb3 Bf6 Bg2 Bg6 Bd5 Ra8 Bc4 Qe6 Rc7 Qdd5 Rc6 Rf8 h8Q Ng4 Qg7 Rh8 Rf3 Nd7 b8N Nf2 b7 Be4 Qg3 Ra3 Qc3 Bg5+ Qf4 Rb3 Rc7 Rb5 Nc6 Rb2 Nd8 Rd2 b8Q Bg6 Qbb2 Nb8 Qbb3 Bh5 Ng3 Re2 Nf1 Bg6 Ne3 d2+ Kb2 d1B+ Kc1 d3 Nc2 Re4 Rh3 Bf3 Rc8 Re2 Rc6 Qdd6 Rc7 Bc6 Rc8 Kd7 e8B+ Ke7 Bd7 Qd5 e6 Kf8 e7+ Kg8 Rf3 Q6e6 e8Q+ Kh7 Qe7 Kg8 Qef6 Be4 Qfe5 Bg6 Rc7 Bf5 Bc8 Be4 Bb7 d2+ Kb2 d1B Ba8 Bd3 Kc1 Qdd7 Rc8 Qa7 Qc7 Bf6 Qfe5 Bg5+ Nd2 Qa4 Rb1 a1N Rb2 Re3 Nb1 Qa2 Rh3 Bh5 Rf3 Qa4 Ra2 Qa7 Ra3 Re2+ Qd2 Bf4 Ra2 Qa4 Qcb7 Bg5 Bd4 Nh1 Ba6 Bce4 Rh3 Rh7 Rc3 Rh8 Bc4 Nf2 Qbc7 Bc6 Bc5 Bh7 Rcf3 Bd3 Rb2 Bf6 Qdc3 Bg5+ Ne3 Nc2 Ra2 Ne1 Rd2 Qa1 Nc2 Qa2 Na1 Nc2 Qc8 Bf6 Qcc7 Nd4 Rc2 Bg5+
NQb5/3RP3/QNq2pKn/1Bn1Q2R/7R/Nk2b2B/4qQr1/B2r1brb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 g4 h5 d4 c5 d6 a5 b6 a4 b7 f6 b5 h4 b6 a3 g6 f3 g5 a2 d7 h3 Kf5 h2 e4+ Kb4 d5 f2 e5 c4 d6 c3 g7 c2 g6 Ra6 e6 Rh4 e7 Ra5+ Bb5 f1B Qd4+ Bc4 Qf2 Ra4 Ne2 Ra3 Nf4 Rh8 Nd5+ Kb3 Bb2 Nc6 b8Q c1Q b7 Qh6 Nb6 Ra6 Na3 Ra8 Rae1 a1R Re5 Rd1 Ba1 Rg1 Qa7 Qh4 b8Q Qe8 Qa6 Bb7 d8N Bc8+ d7 Qd4 Ne6 Qb2 d8R Nb4 Rd7 Nd3 Nc7 Nc5 Re4 Rh3 Rh4 Qe2 Rh5 Ra7 Nca8 Rhg3 Qe5 R1g2 Rd1 h1B Rd4 Rc7 Rdh4 Rd3 Kf4 Nh6 g8Q Ra7 g7 Rd1 Qh8 Rb7 g8B Rgg1 Be6 Rc7 Rd8 Qc6 Bh3 Rg2 Qg8 Rdg1 Qh8 Rd7 Qg8 Rdd1 Rd7 Nf7 Kf5 Bh6 Qgg3+ Be3 Kg6 Nh6 Qb8 Qd2 Qg5 Bf1 Qgg3 Qe2 Qg5 Ng4 Qge5 Nh6+
NR1R4/3P1bp1/n2Q2rb/r1N3QN/n1B5/n1K1Rq2/1nB4R/k1B1Qqb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Kd7 Kd2 Kd6 h4 a5 b4 f5 e4 c5 b6 f3 h6 c4 h5 f2 e5+ Kd7 b7 a4 d6 Kc6 e6 Kb5 h7 a3 d5 a2 h6 f4 d7 f3 e7 Ra6 e8B Ra5 d6 Ne7 Nc3+ Ka6 Rh2 Nd5 Bg6 Nb6 Nge2 Qf6 d8N Be6 d7 Bc5 Nd5 Kb5 Bc2 Na6 b8R Bf7 Ne6 c3+ Kd3 Rc8 h8R Rc6 h7 Qf4 Rb1 a1N Rb3 Ka4 Ng3 Be3 Be2 f1Q b5 f2 Rhd8 Qf3 h8Q Rd6 Nh5 Rc6 Bb1 Nc2 Qh6 Na3 Ndc7 c2 Na8 Rd6+ Kc3 Bc5+ Be3 c1B Bc4 Rc6 Bc2 Rd6 Nef4 Rf6 Nd3 Rg6 Bd4 Bg5 Be3 Bf4 Bc1 Bce3 Rh4 Bh2 Qe1 Bg1 Rh2 Bf4 Qh8 Bh6 Qg8 Q1g2 Qf8 f1N Qfe7 Ne3 Qc5 Qgf1 Qg5 Nc8 b6 Nd1+ Kd2 Nb2 b7 Nb6 Kc3 Qh1 Rbc8 Qd5 b8Q Qdf3 Qd6 Nb8 Kd2 Na6 Rb8 Nb5 Rb4+ Ka3 Rb3+ Ka2 Nc5 Na3 Re3+ Ka1 Kc3 N6a4+
Q1Nk1Nn1/B2p3B/N1QQ3r/4Rb2/R3qBn1/q2P1n2/Q3b1K1/br3Rn1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 c4 e5 f4 h5 Kf2 a5 g4 e4 c6 e3+ Kg2 e2 c7 e1Q b6 a4 b7 a3 c5 a2 g5 Ra7 g6 Qe4+ Nf3 Qe5 f6 Qb2 g7 Qa3 f5 Qe7 c6 Nh6 g8Q Qee3 Nd4 Ng4 Nc3 Rh6 Nd5 Qe4+ Qf3 Ra4 Ne6 Rb4 Bd3 Rb1 Nb4 h3+ Kg3 h2 f7+ Ke7 Rf1 h1B Na6 Bg7 f8R h4+ Kh3 Bh8 f6+ Kd6 f7 Ke7 Qd1 Bf3 Rd8 Be2 Nf8 Bc3 Bc2 Bd3 Qf3 Bg7 Kg2 h3+ Kg3 h2 Kg2 h1N Re8+ Kd6 Re7 Nhf2 Re5 Be2 Bd3 Nh3 Bc2 Ng1 Bd3 Qeb4 Bh7 Qe4 d3 Bh8 Bf4 Bf6 Ra5+ Ke7 Ra4 Rd1 Rb1 a1N Rb5 Nb3 Rba5 Ba1 Rd5 Qe6 Re5 Nd4 Qd5 Rb1 Qa2 Ndf3 Qg6 Nf6 Qe4 Ng8 Qd4 Qb3 Qa7 Qb4 Qa8 Qa3 Nc5 Na6 b8B Nb4 Ba7 Nd5 Na6 Bb7 c8Q Ndf6 c7 Be4 Qcb7 Ng4 c8N+ Kd8 Qc6 Qad6 Ng6 Bf5 f8Q+ Qe8 Qf6+ Qee7 Nf8 Qa3 Qg6 Qeb4 Qgd6 Qe4
1bn2Q2/NPr1N3/3r1Q2/R2R1bB1/2RNb1q1/nK1BqB2/3QB1p1/1q4bk w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 e4 c5 b4 g5 d4 a5 Kd2 f5 Kc3 a4 h5 c4 h6 g3 e6+ Kd6 h7 g2 e5+ Ke7 b6 g4 b5 g3 b7 f4 b6 a3 Ne2 g1B Qd2 g2 Rh4 a2 Na3 f3 Nb5 f2 Na7 Nc6 b8Q Bg7 b7 Nb4 Kb2 c3+ Kb3 c2 d6+ Kf8 e7+ Kf7 e8B+ Ke6 d5+ Kf5 e6 Qd7 e7 Be5 Rf4+ Kg5 Bg6 Qg4 e8B Kh4 d7 Kh3 d8Q Kh2 d6 Ne7 d7 Kh1 Nd4 Bc7 Bc4 f1B Bf5 Bd3 Bh5 Be4 Be2 Rg8 h8N Rg6 Qf8 Rd6 d8R Bd7 Qc8 Bb8 Qc6 Nc8 Bh7 Bdf5 Ng6 Rf6 Rd5 Rd6 Bb2 c1Q Ne7 Qc5 Bc1 Nc2 Bf3 Na3 Qb6 Rd7 Qbf6 Rc7 Be2 Qg7 Bhf3 Qg4 Nab5 Ra6 Na7 Bd7 Bf5 Rd6 Bg6 Bb1 Bgd3 Bf5 Ndc6 Qe3 Rc4 Be4 Nd4 Bc2+ Kb4 Ba4 Kc3 Bd7 Kb3 Bdf5 Qd1 Qf2 Bg5 Qe3 Qe1 Qg3 Qd2 Qg4 Rac1 a1Q Rcc5 Qef4 Ra5 Qe3 Rc4 Qb1+
B1R1nn2/N1n1p1K1/1QNQrB2/R1P3nR/2B5/2bn1k1N/n2r1qbQ/5R2 w - - 0 1 illegal: No possible last move
n1Qr2r1/2Q2b2/2BR4/3QB1k1/Bbq1RRp1/3RPr2/K1n1bN1N/2r1b1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 d4 Ke7 Kd2 f5 Kc2 g5 Kb3 c5 h4 a5 e3 g3 d6+ Kf7 d5 Kg6 h5+ Kh6 d7 g4 e6 f4 e7 g2 e8B a4+ Ka2 a3 b4 f3 d6 c4 b6 f2 b5 c3 b7 c2 b6 Ne7 Qd5 Ng8 Nc3 Bg7 Nd1 Ra7 Bb2 c1R Bb5 f1B Be5 Nf6 Bc6 Bf8 Nf2 Qc7 d8R Be2 d7 Kg5 h6 Rg8 h7 Bb4 h8N Na6 b8Q Ra8 b7 Be1 Ng6 Nb4+ Kb3 a2 Nh4 Nc2 Nhf3+ Kf5 Nh2 Kg5 Rb1 a1B Ba4 Qc5 Ka2 Bac3 Qc7 Bb4 b8Q Qc4+ Rb3 Bb7 Rc8 Bc6 d8R Nd7 Qbb7 Nb6 Rd6 Bb5 Bc6 Rb8 Re8 Rd8 Qbc8 Na8 Bb7 Bd7 Bbc6 Be6 Re7 Qe4 Rd3 Bf7 Nf1 Qf4 Rhh6 Qd4 Rhf6 Qc3 Rf4 Qd4 Qb3 Qc4 Nh2 Kh4 Ngh3 g1R Re8 Rg3 Ng1 Rf3 Ree6 Qc3 Qd5 Kh5 Ref6 Qd4 Re4 Kg5 Rff4 Qc4+
1KQ3NB/2br2nB/RN1q4/1rQ1N2k/QRP1n3/3Qr1r1/pB1R2b1/1n2n3 w - - 0 1 illegal: No possible last move, all moves rejected
1bRr1rbN/4K1q1/r3RRr1/1Q2Qpk1/3b4/1bB2B1P/2N1QBN1/2nn1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 g5 d4 c5 b4 a5 h3 g4 b6 c4 h6 a4 b5 g3 b7 a3 d6 f3 Kd5 f2 e4 g2 d7 c3 b6 a2 h7 c2 e5+ Kg6 e6 f5 e7 Ra6 Ke6 Nc6 b8Q Nb4 e8Q+ Kg7 d5 Ne7 d6 Nec6 b7 Ra7 Qe2 Ra4 Nf3 g1R Nh2 Rg3 Na3 Ne7 Bb2+ Kh6 Bc3 c1R Bg2 f1B Nc2 Ra6 Bf3 Rg6+ Kf7 Bg2 Nf1 Ned5 Q8e5 Qg5 d8B Rd1 d7 Bd6 Bb6 Ne3 d8N Nd3 Ne6 Nc1 Nf4 Rd8 Rb1 a1B h8N Rd4 Ba7 Nd1 Rb6 Qg4 Rc6 Kg5 Bc5 Bc7 Rf6 Rf8+ Ke7 Rdd8 Bf2 Be6 Rg1 Bh1 Ng2 Bg8 Q5b5 Bg3 Q8e5 Bb3 b8R Bh2 Bb4 Bd4 Bc3 Bg8 Rc8 Bf4 Nfe3 Qg3 Re1 Bb3 Qec5 Bb8 Nf1 Bg8 Qed3 Qg4 Ree6 Qg3 Qe2 Qe5 Rf7 Qg7 Qce5 Rdd6 Be4 Ne3 Nge1 Nd1 Bb7 Be4 Ng2 Bd5 Bc6 Bb3 Bf3 Qh6 Rff6 Rd5 Bg4 Rdd8 Bf3 Qg7+
Q2nqQ2/2R1R1br/BR4Q1/Pn1BBK2/kpNRb3/6r1/4r2N/b2Nb1r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 b5 Ke4 h5 a4 e5 g4 c5 f4 c4 d4 h4 f6 c3 d6 Kc6 g6 c2 f7 b3 g7 b2 a5 h3 d5+ Kc5 d7 Kb4 f5 h2 f6 Qe8 d8N Bd6 f8Q Qc6 g5 Qb6 f7 Qa6 g6 Bh3 Bf4 c1B Qc2 Qc8 Nb7 Rh7 Nf3 Nh6 g8Q Nf5 g7 Qe8 Nc3 b1R Nd1 Rb2 Rb1 Nc6 Qg2 Ka3 Qg6 Nd8 Be2 Kb3 Re1 h1R Nh2 Rg1 Bg3 Ba3 d6 Ka4 d7 Bh6 Nd6 Nd4 Nc4 b4 Rc1 Ra6 Qh8 Ra2 g8B Nb5 Bf1 Bg2+ Kf5 e4 Be5 e3 Rc2 Ne6 d8R Bb2 Rd4 Bg7 Bd3 e2 Rc1 Qe7 Qa8 Qd8 f8R Ba1 Rf6 Qe8 Rc2 Nd8 Bd5 Ra3 Qf8 Re6 Rc3 Re7 Rb6 Re6 Nce3 Re7 Rc7 Bh1 Nc4 Rc3 B3e4 Rcg3 Bb7 Bg2 Bed5 Bh1 Ba6 Bg2 Rf1 e1B Rf3 Re6 Re3 Be4+ Kf4 Rf6+ Qf5 Na3 Bd6 Bc2 Ree7 Re6 Qg6 Re2 Be5 Nb5 Rbc6 Be4 Rb6 Bg2 Kf5 Be4+
1QN1N2R/Kn2r3/P2r1n2/1QR4Q/r1r3B1/1qb3p1/1Bb2knB/RnN3N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 h4 g5 a4 e5+ d6 b5 d4+ Ke4 f4 g4 a5 c6 a6 b3 f6 b4 h6 b2 f7 b3 h7 Ne7 d7 Ra7 h5 Bg7 f8N Nd5 f5 Qg5 d8Q Qd2 f6 Ke3 h6 e4 f7 Nc7 Kb6 c5 d5 c4 d6 c3 d7 c2 Ne6 Bc3 f8Q Ne8 Ng7 Nc6 Be2 Na5 Rh5 Nf6 Ne8 Nb7 Qb4 Kf2 Rc5 e3 Qb5 Qd5 Nd2 b1R Bb2 c1R Qc7 Qc4 d8N Bf5 Nc6 Bc2 Ne7 g3 Nc8 Qa4 Bg4 e2 Qb8 Rf8 h8R e1N h7 Ng2 Qd3 Rf7 Qb5 Re7 Qf3+ Ke1 Qd5 Kf2 Qh5 Qa3 Nc4 Re4 Ne5 Ra4 Nd3+ Ke3 Nf4 Kf2 Nfe2 Rd1 Nc1 Rdd4 Rf8 Rdc4 h8B Qa2 Bg7 Qa3 Rh8 Qa2 Nce2 Rd1 Nc1 Rd2 Ba3 b2 Bh6 b1N Bb2 Qb3 Be3+ Kf1 Bf2 Nd8 Bd4 Re7 Be3 Nb7 Ka7 Re6 Nf3 Rd5 Bg1 Re7 Bh2 Kf2 Ng1 Rd6
1Q1b1k1B/3br2P/4Q1pR/3QbB1n/RK1n1rRn/7b/1B1n4/qN1NN1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 c5 d4 f5 Kd2 f3 Kc3 f4 e4 a4 h6 f2 h7 a3 b6 f3 b5 c4 d6 a2 h5 g6 e5 Bh6 e6 Nf6 b7 Ra5 b6 Ra4 d7+ Ke7 d5 Ne8 d6+ Kf8 e7+ Kg7 Qe2 Bf4 h6+ Kf7 Bh3 f1N Bb2 f2 Nf3 Nd2 Ne1 f1B Bf5 Ng7 e8N Nh5 Nf6 Bh3 Ng4 Bg5 Ne3 Nf3 Nd1 Kf8 Qe6 Nc6 b8B Nh4 b7 Nd4 Ba7 Qf6 b8Q Qe5 Rg1 Bd8 Rg4 Rg8 h8B Rg7 h7 Re7 Bc5 Ra6 Kb4 c3 Bb6 c2 Ba7 c1N Bc5 Nce2 Bb6 Ndf3 Bg1 Ng2 Rh4 Nd2 Rg4 Nd4 Rh4 Bc7 Rg4 Nh4 d8Q+ Re8 Qdd7 Bd8 Qdb5 Re7 d7 Ra3 Qbd5 Rf3 Qba8 Rf4 Qb8 Bc7 d8R+ Re8 Bf2 Bd7 Bg1 Bb6 Rc8 Bd8 Rc5 Re7 Ra5 Qg7 Ra4 Qf6 Nbc3 Qe5 Rc1 a1B Nb1 Qg7 Rc3 Qf6 Rf3 Qe5 Rf2 Qg7 Rh2 Nd4f3+ Kc5 Ng3 Bbd4 Bf1 Bdf2 Ng2 Rh5 Ngh4 Rh6 Nh5 Bd4 Bh3 Bc3 Qf6 Bb4 Qb2 Ba3 Qa2 Bc1 Be5 Bb2 Nd4 Kb4 Qa1
1b2bNn1/QBR2nBP/pQ1Qb3/1B1b2r1/1nN4k/1KnrR3/8/3BNRq1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 d5 h4 g5 c4 f5 Kc2 f4 e4 f3 h6 g4 h5 d3+ Kb3 g3 e6 Kf6 c5 f2 b6 g2 b5 a6 e5+ Kf5 e7 d2 e8R Kg5 c6 d4 h7 d3 b7 Ne7 b6 Ng6 e6 Qf6 c7 Qe5 h6 Rg8 h8N Qf5 h7 Qc5 e7 Nc6 b8Q Nb4 Na3 Be6+ Nc4 Qe3 Qa7 Rd8 Be2 f1B c8B Qf2 Nh3+ Kh4 b7 g1N b8Q Bg2 Bb2 Nf3 Qbb6 Qg1 Bb7 Ng5 Bg7 Nf7 Rc1 Bgd5 Rc3 Rd7 Rc8 Rd6 e8B Ne7 Bb5 Rd7 Rc7 Rd8 Qb1 d1N Qd6 d2 Re3 Nc3 Bd1 Rd7 Bd4 Rg4 Bg7 Rg5 Qb2 Ng8 Nf4+ Qh2 Rhe1 Qg1 Nd3 Be7 Rf1 Bd8 Rc8 Bc7 Ne1 Bb8 Rc7 Rd8 Bc2 d1B Ng6+ Kg4 Nf8 Kh4 Qb1 Bh5 Bd1 Bg2 Qe5 Rd3 Qd6 Bc6 Qb2 Be8 Qb1 Bf3 Qb2 Bfd5 Qf2+ Rg3 Qf6+ Rg5 Qfd4+ Bg4 Q4b6 Bge6
7n/p1r5/bN1RNB2/PB4b1/2R3NQ/1K1RqQ2/1n1BnrQB/k1b1bn2 w - - 0 1 legal: proof: e4 c5 c4 f5 exf5 h5 b4 d5 cxd5 Nd7 bxc5 Nb8 g4 hxg4 d4 Kd7 Kd2 g5 Kc2 e5 f4 b5 h4 e4 a4 e3 f6 b4 h5 e2 c6+ Kd6 h6 e1N+ Kb3 g3 f7 g4 h7 g2 a5 g3 c7 Qg5 f5 Na6 f6 Be7 f8Q Qe3+ Nc3 Nb8 f7 Nc6 Qg7 Ba6 f8B Rc8 Rh3 Nd3 Bd2 Nh6 Na4 Nf7 Nf3 g1B Nb6 g2 Nh2 Bf2 Qf3 g1B Rd1 Be1 Ng4 Nb2+ Bd3 Rg8 h8Q Bgf2 Qh5 Nh8 Qh4 Bg3 Qgg5 Bf4 Bg7 Rgf8 Bf6 Rf7 Qg6 Rcf8 c8R Bd8 Qge4 Rc7 Qg2 Be7 Qef3 Bh6 Ka2 Bg5 Bb5 b3+ Ka3 Rf7 Rg3 Bf8 Rh3 Bfh6 Be5+ Ke7 d6+ Ke6 d7 Rf4 d8N+ Kf5 d5 Nd4 d6 Ne2 Qff1 Rf2 Rf3+ Ke4 Bh2 Kd4 d7 Qe5 Rc3 Qe3 Rc4+ Kd3 Rd4+ Kc2 Ne6 Rc3 d8B Rc7 Bc1 Kb1 Rd6 Ka1 R1d3 Nd1 Ka4 b2 Kb3 b1N Bf6+ Nb2 Qfh1 Rd7 Rc4 Nd2+ Ka3 Nf1 Kb3 Rc7 Bd2 Bf4 Qf3 Bhg5 Qhg2 Qe4 Bdc3 Bc1 Bd2 Qe3
q1RbBB2/Q1BR3q/1pk5/3qB2R/b1bn2NK/2n1q3/QPrN1NQ1/q7 w - - 0 1 illegal: No possible last move
1nk3B1/1pn2Q2/5Q1N/bN1R1b2/2KRnnR1/b2rR3/1P1q1B2/1nQ2BNq w - - 0 1 illegal: No proof kernel
1QN1b1RB/2q1QQ1r/n5N1/p2NR1bq/q2RK1r1/b5qk/P1B4r/4R2B w - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Nc6 h4 Nd4 Qd2 Ne6 Qd6 fxg4 Qd1 g3 Bd2 g4 Bc1 Ng5 hxg5 Kf7 Nc3 Ke7 Nb1 Ke8 Kd2 Ke7 Kd3 Ke6 c4 Kf5 f4 h5 c6 d5 e6 a5 e7 b5 e8B g2 c5 b4 c7 d4 c6 g3 g6 Kg4 f5 h4 g7 h3 e4+ Kh4 e5 b3 f6 b2 e6 h2 e7 Rh7 f7 Bd7 c8N Qc7 Qe1 Nf6 g8R Nd5 Nc3 b1R Bb2 Nb4+ Ke4 d3 Nf3+ Kh3 Ne5 d2 Bd3 d1Q Ng6 g1B Nd5 g2 Bc2 Na6 Bh8 Be3 Rf1 g1Q Rf4 Rb2 Rc1 Bg7 f8Q Qg3 Qf7 Bf8 Qb4 Qh5 Re1 Qd1 Rg4 Bf4 Qb7 Ra7 Qb8 Rh4 Rg5 Rg4 Re5 Qb7 c7 Ba4 Bc6 h1Q+ Kf5 Qhf3 e8R Ba3 Rd8 Qb6 Ba8 Be8 Qb7 Qfb3 Ke4 Qc6 Qb4 Qd7 Qbe7 Qba4+ Nb4 Q7d6 Bc6 Qc5 Rd4 Qcc3 Nd5 Rab7 Bd3 Rh2 Bc2 Qcc4 Na7 Qc5 c8Q Rd7 Qb8 Qd6 Nc8 Qc7 Qc5 Re7 Qf5 Rh7 Qf7 Rg5 Qce7 Qh5 Bb5 Rg4 Be2 Qgh4 Bf3 Qg3 Bh1 Bg5+
1r1kN1n1/4N1Q1/R2B1pR1/1b2Qb1B/rRrB1BQ1/8/b3NPn1/b3Kb1b w - - 0 1 illegal: No proof kernel
kb2r1b1/Nn2Q3/r1R1RQQ1/1P1B2R1/n3Np2/N2nbBB1/p1r2q2/1R4K1 w - - 0 1 illegal: No possible last move, all moves rejected
1b5B/1b1R2pN/2kPr1n1/1bn2B2/Nr3R1n/5RB1/pNK1Q1Q1/r1qQ1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 a5 d4 f5 Kd2 c5 e4 a4 h6 a3 e5 c4 h7 f3 b6 a2 h5 f2 b5 c3+ Kc2 f4 d6 f3 e6+ Ke8 d5 Ra7 d7+ Ke7 d6+ Kf6 e7 Ke5 e8N Nh6 b7 Qf6 d8R Ke4 b6 Qf4 Nh3 Ra6 Nf6+ Ke5 Rd7 Nc6 b8Q Qc4 b7 Qe2+ Nd2 Ne7 Nf4 Nhf5 h6 Qe3 Bh3 f1R Qa8 f2 b8N Rb6 Na6 Bb7 Nc5 Rb4 Na4 Nh4 Bf5 Neg6 Rh3 Be7 Rf3 Re8 h8Q Bd8 h7 Re6 Qe8 Bc7 h8B Bb8 Nh7 Kd4 Nd3 Kd5 Rf4 Kc6 Ndb2 Rh1 Rf3 f1B Qe7 Bb5 Nf1 Qa7 Bf4 Qe3 Bg3 Rg1 Qe2 Rh1 Rd1 Rg1 Rd4 Rh1 Kd1 Rg1 Rdf4 c2+ Ke1 c1N Kd1 Rh1 Kc2 Nd3 Qg5 Nc5 Qa5 Rbe4 Qad2 Rd4 Qg4 Rb4 Qh3 Rg1 Qhg2 Rh1 Nh2 Rb1 Qdd1 Ra1 Nf1 Qc1+
QbB1n3/2PR3b/rQ1B3k/p1np1R2/1Bn3Qq/1N6/r1N1N1b1/1rR3NK w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 Kf7 h4 g5 f4 Kg7 Kf2 d5 Kg2 a5 b4 e5 f6+ Kh7 h6 d3 b6 g4 h5 e4 b5 d2 b7 g3 b6 e3 c5 e2 f7 e1R f5 Qf6 c6 Re5 c7 Bg7 f8R Qg6 f6 Bd7 f7 Re8 Qg4 d1B Ba6 Nf6 Ba3 Bc2 Nd2 Bb1 Bd6 Ba2 Rc1 Ba4 Nb3 Nbd7 b8N Nc5 b7 Bb1 Nc6 Re1 b8Q Qg5 Bc8 Qh4 Qb6 Ra6 Nb4 Ne8 Nc2 Bd7 Rh3 Bd4 Kh1 Nf6 Rd8 Ne8 f8B Be6 Bfe7 Rf8 Rd7 Rf2 Ne3 Ra2 Nc2 Bf5 Rh2 Bd3 Rh3 Bf1 Rh2 Bh3 Rf2 Rd1 Rf5 g2+ Kh2 Nd3 Bb4 Nc5 Bd6+ Kh8 h7 Rf1 Ne2 g1N Kh1 Nf3+ Ng1 Ne5 Qe2 Nf7 Qc4 Kg7 h8N Re1 Ng6 Kh6 Nf4 Ne5 Ne2 Bf2 Qd4 Nc4 Qg4 Nb7 Qb5 Ba7 Qb6 Nc5 Rd8 Kh7 h6 Bb8 Rd7+ Ng7 Qf4 Kg6 h7 Ne8 Qg4+ Kh6 Ncd4 Bd3 Nc2 Rf1 Rf6+ Bg6 Rf5 Rd1 h8Q+ Bh7 Ra1 Rb1 Qhg8 Rbb2 Rc1 Rb1 Qc6 Nf6 Bb7 Ba7 Qa8 Ne8 Qb6 Bb8 Bc8 Bg2+
kr3QNN/P5Kp/nb1R4/3q2R1/2N1b1r1/2NB3p/Q3n1RB/rBn3bQ w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 Kf3 e5 Kg4 b5 Kh5 c5 f4 Kc7 g4 Kb7 d4 c4 a4 e4 a6+ Ka7 a5 c3 g5 h3 f6 c2 f7 e3 f5 b4 g6 b3 f6 e2 g7 e1N d6 b2 d5 Bf5 d7 Bd6 f8Q Bh2 d6 Qe8+ f7 Nd3 d8Q Nd7 Nc3 b1R Bf4 c1B Ra2 Ra1 Nf3 Nb2 Ne5 Ne7 Kh6 Nb6 g8N Qa4 d7 Bg4 Rg1 Nec8 Kg7 Nd5 Nc4 Nb4 Bd3 Bf3 Rg5 Qb3 Qh1 Bg1 Bh2 Bce3 Qc7+ Bb7 d8R Bb6 Rd6 Ne7 Qcc8 Nec6 Qe6 Rc8 Qe2 Ka8 a7 Rb8 Qe6 Na4 Rag2 Na2 Qe2 Nc1 Qa2 Nb4 Bb1 Bc6 Bd3 Kb7 a8B+ Ka7 a6 Be4 Bb1 Qd1 Bc6 Qd5 Bb5 Ka8 a7 Na6 Qd8 N4c5 f8N N5b3 Ng6 Nd4 Qf8 Nde2 Na5 Bd8 B5d3 Bdb6 Nc4 Bc7 N8e7 Qc6 Kh6 Ba5 R5g3 Rg8 Nh8 Rg5 Ng8 Bab6 Rg4 Qd5 R4g3 Rh5+ Kg7 Rh4 Rg5 Rg4
N5q1/1RQ3n1/1N2r3/q1q1BNbQ/2r2RP1/p1RB2pK/2n1b1RQ/3kbB2 w - - 0 1 illegal: No proof kernel
k1BN1q2/1R1K3n/2QR3n/2QN1r1q/1BBpb3/NP1p3q/3N1R1b/1nQ4r w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 Kd3 Kd7 c4 Kc7 h4 Kb7 f4 e5 f6 a5 b6 g5 b3 g4 f7 g3 h6 g2 h7 a4 c5 a3 f5 a2 f6 Ra4 h5 Qc7 h6 Bd6 f8R Ne7 f7 Qd7 c6+ Ka8 b7+ Ka7 c7 Qg4 Nf3 g1Q Na3 Qg7 Bd2 Ng8 Bb4 Q7g3 Qc1 Nd7 b8N Ndf6 Na6 Bb7 c8B Ra5 Nc7 Q1h2 Rd8 Rb5 f8Q Qh5 Rh2 Qgh3 Rf2 Bc6 Rd7 Ba8 Rb1 a1N Qc6 Nc2 Rd1 Ne3 Nd2 Nc4+ Kc2 d3+ Kc3 e4 Kd4 Bh2 Qfc5+ Nb6 Qc1 Na4 Rf7 Nc3 Rg7 Rb6 Kc5 Nb1 Be2 Bg1 Kd6 Rb5 Ne6+ Bb7 Nf4 Ka8 Q6c5 Bc6 Rb7 Bh2 Bf1 Ng4 Kc7 N8f6 Be2 Re8 h8Q Nh7 Qhb2 Rf8 Kd6 Rf5 Qbc2 Ra5 Nac4 Ra1 Na3 Nhf6 h7 Nh6 h8N Nh7 Re7 Bb7 Nf7 Bc6 Nd8 Bb7 Bf3 Bc6 Rb7 e3 Re1 d4 Bd5 e2 Bc4 Bd5 Kd7 Be4 Ref1 e1Q Nd5 Qee3 Rg1 Qe1 Rg6 Qg1 Rd6 Qg8 Qc6 Qf8 Ba6 Ra2 Q2c5 Rb2 Bc4 Rc2 Qb2 Rc1 Qc3 Rd1 Qc1 Rh1
1QRQ3N/r3b2b/2q2k1B/N2Q1B1b/p2n1QRK/2P3p1/1Rr1qB2/2r1n2N w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 Kf7 Kf2 a5 Kg3 d5 b4 g5 h4 e5 h6 d3 b6 a4 h7 g4 c3 e4 h5 d2 f6 d4 f5 d3 b7 e3 b5 e2 h6 e1R b6 Bd7 Rh4 Re5 Ra2 Re2 Na3 Ra7 Nh3 Be7 Nf2 Bf8 Bh3 Be7 Rb2 Ra6 Nh1 Bb4 Nc4 Ne7 Na5 Nbc6 b8B Ra7 b7 Qb6 Bf4 Ne5 b8Q Re1 Be3 Nf3 Bf2 Qc6 Qf4 Rg8 h8Q Be6 Qb3 d1Q h7 d2 Qd5 Qe2 Qb8 d1B Bh6 Rg7 Qhd8 Bc2 Qf4 Rc1 Qfb8 Ne1 Qf4 Ng6 Qfb8 Nf8 h8N+ Kg8 Qf4 Be7 f7+ Kh7 f6 Bc8 Be3 Ne6 f8Q Nd4 f7 Bg6 Bg1 Bcf5 Bf2 Bh5 Qdb8 Rg6 Qfd8 Rf6 f8R Rf7 Bg5 Kg7 Bh6+ Kf6 Qdb6 Bd6 Rc8 Be7 Qbd8 Rc2 Bg2 Rg7 Be4 Rg5 Qd2 Bfg6 Bf5 Bh7 Qdf4 Rc1 Kh2 g3+ Kh3 Rg8 Rg4 Re8 Qdb6 Rd8 Kh4 Rdd7 Qd8 Rdb7 Rd2 Rbb1 Ra2 Rc2 Rb2 Rbc1
nrB1n2R/2Q2QN1/2Nb4/qr2p1Nq/2B3b1/5bKR/3pPB1Q/1rk1B1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 c5 a4 Rh7 axb5 Rh8 d4 cxd4 Kf2 d5 h4 Kd7 b4 Ke6 c4 Ke5 h6 Ke4 h7 f5 g6 a5 h5 e5 b6 a4 b7 a3 h6 d3 b5 d4 g7 d2 c5 f4 c6 f3 c7 a2 b6 d3 Nh3 Ra7 Nf4 Ra6 Bg2 Bc5+ Kg3 Ke3 Qc2 f2 Nh5 f1Q Nc3 Nc6 b8N Nd4 b7 Bd6 Rh3 Bg4 c8B Qh1 Bd5 Ne6 Nc6 Ra5 b8B Nc7 Bc4 Nf6 g8Q Nfe8 Ng7 Rb5 Qf7 Na8 Ne4 Qa5 Ng5 Rf8 Rb1 a1R h8R Bf3 Ba3 d1B h7 Bg4 Rc1 Rab1 Bb4 Rg8 Qc3 Ba4 Rg1 Bb3 Qc2 Ba4 Be1 Bb3 B4e6 Bd5 Qc3 Bdf3 Bc4 Qa1 Qa5 Qc3 Qac7 Qa5 Bf2+ Kd2 Be1+ Kc1 Ba7 d2 Baf2 Rf8 Rg8 Nf6 h8Q Re8 Qhh5 Rd8 Rh8 Ne8 Bb7 Rb8 Bc8 Qh2+ Kh4 Qf4 Rhh1 Bg2 Qh7 Qe4 Kg3 Qg6 Qh3 Bd5 Qg2 Be4 R1h3 Bef3 Qh2 Qh5
qk3b1N/1nqQ4/3rQ2n/np3P1B/3q3R/3Q1NBp/NRbK1R1r/1N2B3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 b5 d4 h5 g4 c5 g6 Kc7 d6+ Kb7 g5 e5 d7 h4 d5 c4 a5 c3 f6 c2 f5 e4 f7 e3 g7 e2 a6+ Ka7 g6 b3 d6 b2 Nf3 Qb6 d8N Rh7 d7 Qc5 Ra2 Qd4 Nc6+ Kb6 d8B+ Kc5 a7 Kd6 Qd3 Nd7 Bd2 c1N Bc7+ Kd5 Bg3 Nh6 g8R Bb7 g7 Rd8 a8Q Nb3 Qa7 Ndc5 Bc3 Na5 Kd2 Ba8 Bb4 Rd6 Qd7 Ncb7 Bc3 Rh8 Nb4+ Kc5 Rh2 Kb6 Rf2 Rh7 Rh8 Ka7 g8Q Kb8 Qg6 h3 Qge6 e1Q+ Kc2 Qee3 Be2 Rg7 Be1 Qee4 Kd2 Qc6 Rh7 Qc7 Rh8 Nd8 Bd1 Be4 Rh7 Ndb7 Rh8 Ng4 Rh4 Nh6 Be2 Bd5 Bd1 Bb3 Be2 Bc2 Bd1 Be7 f8N Rg8 Ng6 Bf8 Nh8 Rg6 Nc3 b1Q Rb2 Qa2 Nb1 Qad5 Na2 Q5e4 Bh2 Rg2 Bg3 Qed5 Ng1 Rh2 Bh5 Qdc6 Nf3 Qa6 Qdf7 Qaa7 Qfd7 Qa8
1b2Br1N/q2QQq2/5r1k/pbQN2RN/3rK1n1/n1qP1B1p/2RB3R/Q7 w - - 0 1 illegal: No possible last move, all moves rejected
1kN2b2/b3nbBK/4r1p1/P2Bnq2/B1N5/2n1QQp1/1N4qR/RR2rRQ1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Kd3 b5 Ke4 e5 h4 c5 a4 Kc7 d4 c4 f4 c3 d6+ Kb7 h5 g3 f6 b4 f5 b3 d5 b2 h6 c2 d7 Ka7 h7 Bc5 a6 Ba3 a5 Bc5 f7 Bb6 f8R Qe8 d8Q Bf2 f6 Qb5 d6 Be1 f7 Nd7 Kf5 e4+ Kg6 e3 Nf3 e2 Nc3 b1N Na4 Nh6 Qg5 Qc4 Ne5 Kb8 a7+ Kb7 Nb2 Qg4 Nec4 Ng8 Bg2+ Qf3 Qe3 Bb4 Qdg1 e1Q Bd2 c1B Bc3 Qc6 Bd5 Qf2 Bf6 Rb8 Bd4 Bc5 a8B+ Ka7 Bb7 Nc3 Ba6 Rb7 Bb5 Kb8 Ba4 Ba7 Rb1 Rb6 Bf6 Nc5 d7 Nd3 d8N Be6 Nb7+ Qc8 Nbd6 Qg2 Qc5 Bh6 Qce3 Qe8 Nc8 Qd7 Re8 Qb5 f8Q Rd6 Bd4 Ra6 Qff3 Ne5+ Kh5 Rd6 Rf8 Ne7 Rh2 Rg8 h8R Ra6 Rf4 Re8 Rhf8 Bg8 Rfh4 Rg6 Rh1 Re6 R4h2 Bg5 Rf6 Bh4 Rf7 g6+ Kh6 Bg5+ Kg7 Bh6+ Kh8 Bf8 Rf4 N5c6 Bg7 Bf7 Kh7 Qc5 Qfe2 Ne5 Rff1 Qd4 Ra1 Qd3 Q2f3 Qdc2 Rfb1 Qf5 Qgf2 Rd8 Rhf1 Rdd6 Qg1 Rd7 Be4 Rd1 Bd5 Re1
6b1/n1rrB3/k3pKN1/1p2R1bN/1Rq2BQ1/q1RQ3P/2BQ2rN/q1B4n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 b5 Ke4 g5 Ke5 c5 d4 Kc7 a4 Kb6 f4 e6 h6 g4 h3 b3 d6 c4 h7 b2 f6 g3 d7 g2 a5+ Ka6 f5 c3 f7 c2 f6 Be7 f8B Ka7 d5 Kb7 a6+ Kb6 d6 Ra7 f7 Nh6 Bd3 Nf5 Nf3 g1R Nc3 b1Q Ne4 Rgg8 Bfh6 Qb4 f8B Rg5 Ra4 Rb7 a7 Qe8 d8Q+ Rc7 a8R Bb7 d7 Qa3 Rb4 Rg2 Re1 Ng3 Nh2 Nh1 Bhf4 Bg5 Qg4 Bh6 Kf6 Nc6 Rc8 Na7 Be7 Ka6 Ng3 Be4 Nh5 Rg8 h8N Bh7 Bg6 Rg7 Re5 Bg8 Bd3 Qa1 Ng6 Rh7 Bcd2 c1Q Bc2 Qca3 Bc1 Rb7 Rc3 Rc7 Qa8 Qd8 Qe4 Qc8 d8Q Rd7 Qe3 Qc4 Qd2 Rc7 Q8d3 Rg7 Bf8 Rgd7 Be7 Bg5+
RB4nB/4bR1r/2np3k/Q2Nn2B/1N3r1q/p2RK3/2B1Pbq1/NQ3b1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 h4 f5 b4 Kf7 c4 g5 b6 Kg7 e6 d6 c5 d3 c6 g4 b7 a4 e7 g3 e8B g2 c7 a3 b5 f4 h6+ Kh7 h5 f3 b6 f2 Rh3 Be7 Nf3 g1B Bg2 f1Q Nd4 Ra6 Bb2 Bh2 Nc3 Nf6 Nd5 Rf8 Nc2 Nc6 b8N Bg1 b7 Bf2 Be4+ Bf5 c8Q Na5 Qc7 Bb6 Nc6 Ra7 N6b4 Qc8 Qe1 Qf3 Qc5 Nc6 Qa5 Bd4 Qg1 Qg4 Rf1 Bd8 Na1 B4b6 Rff3 Bf2 Qb1 Qg6 Rhg3 Bh3 Bd4 Qcf5 b8R Rd7 Ra8 Ng8 Ba7 Bf1 Bb8 Qh3 Rf5 Ra7 Rgf3 Qgg2 R5f4+ Kh8 h7 Kg7 Rf5 Raf7 h6+ Kg6 h8Q Be7 h7 Qh5 Qe5 Kh6 h8B Rh7 Qh2 Qh4 Bh5 Rff7 Qh1 Rf6 Kc3 d2 Bc2 d1N+ Kd2 Ne3 Rh3 Ng4 Rd3 Nge5 Rff3 Rg6 Rf4 Rg4 Rf7 Be1+ Ke3 Rf4 Qb2 Bg3 Qb1 Bf2+
3k1KQ1/BR2n1rB/2P1B2Q/q2N4/5bB1/2pQp1rR/q1q1b3/2RNbN1n w - - 0 1 illegal: No proof kernel
2q2Bn1/r1R4q/1qP3pR/N2p1n2/NR1r1b1Q/k3B2B/2B2Kb1/nQN4Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e4 Ke7 h4 a5 b4 f5 c4 d5 e6 Kd6 b6 g6 b5 Kc5 h6 Kb4 c5 d3 h5 a4 h7 d2+ Kf2 a3 e5 f4 e7 a2 e8N f3 e6 Qd7 h6 Qd8 e7 Qd7 b7 Nc6 b8Q Bg7 b6 Ra6 b7 Qh3 Nc3 Ra3 Nge2 Nd8 Na4 Bf5 Nd6 Bg4 e8B Bc3 Nc4 Qh5 Na5 Nc6 Bh3 Nd4 c6 Bb2 Bd7 Nf5 Qg3 Bc3 Qh4 Be5 b8B Bf4 Rb1+ Rb3 Qf1 d1Q Be3 a1N Nc1 Ka3 Bd6+ Rb4 Bf8 Qd4 Qb5 Qc5 Rf1 Rc4 Rb4 Qb6 Re1 Rd4 Qd3+ Nb3 Qb1 Na1 Be6 Qg5 Bc8 Qgd8 Ba6 Qc8 Bd3 Bh5 Bc2 Bg4 Bd2 Bh5 Re7 Bg4 Rc7 Bh5 Ke1 f2+ Kf1 Bf3 Be3 Be4 Ke2 Nge7 Kf1 Bg2+ Ke2 Rg8 h8Q Rg7 h7 Rf7 Q8f6 Ng8 h8R Re7 Rh6 Rd7 Bg4 Re7 Qh1 Rg7 Qfh4 Rh7 Bd3 Re7 Bh3 f1Q+ Kd2 Qf3 Ke1 Qh5 Bc2 Rd7 Rh8 Qh7 Kf2 Qf7 Rh5 Qh7 Rh6 Qcb8 Rc8 Ra7 Rc7 Qc8
2NR1Q1q/1KBn1nb1/2PpBp2/N1Qq3b/3r1k2/1N5R/1BR1r2q/3Q1bB1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 a5 c4 a4 b4 g4 c5 g3 b6 g2 h6 a3 h7 a2 b5 d3 h5 d2 h6 f6 b7 Qe7 b6 Ra6 Rh3 Qe8 Nf3 g1Q Nd4+ Ke7 Kd5 Ra3 e4 Qh1 e6 Qg1 e5 Rb3 Bb2 Qg3 Bc4 Qe1 Na3 Na6 b8B Rb5 b7 Qg6 Bc7 Rb4 b8B Bg7 Nb3 Qf7 Rc1 a1Q Rc2 Qb1 Ba7 Bf8 c6 Qe8 Bg1 Nb8 Kc5 Qg3 Bd5 Rc4+ Kb6 Rd4 Nc4 Bg7 Nca5 Ba6 Bc4 Bb5 Kb7 Qa2 Bd5 Bf1 Bc4 Qh5 Bd5 Ke8 e7 Qh2 Be6 Qh4 Bf5 Kf7 e8N Qh5 Be6+ Kg6 Nd6 Kg5 Nc8 d6 Nc1 Ne7 Ncb3 Re8 h8Q Kf4 h7 Nf5 Qf8 Nd7 h8Q Nh6 Qh7 Re7 Qd3 Re8 Qc4 Nf7 Qc5 Qh4 Bf5 Qh7 e6 Qh5 e7 Qh8 Qh5 d1B Be6 Qa4 Qe2 Qc4 Qd3 Bh5 Qd1 Rd8 e8R Qd5 Na7 Ra8 Nc8 Ra6 Rd8 Rb6+ Ka8 Rbb4 Ka7 Re4 Ka8 Rbd4 Kb7 Re2
1q2RBR1/qBnk1K2/qQp3nr/Q4rB1/6PN/b7/1N1Np2R/1Bnb3Q w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 h5 Ke3 e5 b4 a5 f4 c6 d4 h4 g4 h3 d6 h2 f5 a4 g6 a3 d7+ Ke7 d5 a2 b6 Ba6 d6+ Kf6 g7 Be2 b5 Ne7 g8B Qc7 d8R Bd3 b7 Ra5 b6 Rh4 d7 Ra8 Bh7 Ra7 Nf3 Bc2 Re8 Qc8 d8Q Kf7 f6 Ke6 f7 Ra8 Nbd2 Ra4 Ba6 Rh6 Nh4 Ra5 Rb1 a1Q Rb4 Nd7 b8N Nf6 Nd7 Qb8 b7 Kd6 Qf1 Bd1 Nb6+ Ke6 Na4 Nd5+ Kf2 e3+ Kg3 e2 Nb2 e1N Bb1 Qa7 b8Q e4 Qbb6 e3 Bb7 Nc7 Kf4 e2 Rb5 Nd3+ Kg5 Qa3 Qa8 Kd7 Qg2 Ng6 Kf6 Nb4 Rg5 Na2 Qd5+ Bd6 f8B Qb3 Qg2 Ba3 Qgg1 Qd3 Kf7 Qda6 Qf1 Ne7 Rg8 Ng6 Nb3 Re5 Bg5 Nc1 Nd2 Qb8 Qaa7 Rb5 Qa5 Rc5 Q7b6 Rd5 Rg1 h1Q Rg2 Qg1 Rh2 Qd4 Qh1 Qe3 Qb3 Qea7 Qbb6 Rf5+
B1Q2rnR/Q2R3P/1bb2Q2/B2R1bqn/2K1B1p1/1N2r2N/3p3Q/1q1k1Nq1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 b4 Ke5 c4 d5 f4+ Kf6 h4 g5 b6 e5 h6 a5 h7 g4 c5 a4 c6 a3 h5 a2 c7 Qe8 b5 Ba3 b7 Nd7 b8Q Bb7 c8B Bc5 h6 Ra7 b6 Bb4 Nh3 Bf8 Bg2 Qh5 Be4 Ra5 Qg1 Ra7 Qh2 Bc6 b7 Bc5 Nd2 Bb6 Rd1 Qg5 Nf1 Ra6 Rb1 a1Q Qa7 Ra3+ Rb3 Qa2 b8N Qb2 Na6 Qb1+ Kd2 d3 Kc3 d2 Nc5 d4+ Kc4 d3 Rb5 Rb3 Bb7 Ra3 Ba8 Rb3 Re1 d1B Bd2 Bc2 Ba5 d2 Rc1 Re3 Nb3 Ne7 Rd5 Rf8 h8R Ng8 Bg2 e4 h7 Rf3 Re1 e3 Re2 Rg3 Be4 Rf3 Re1 e2 Rc1 Re3 Re1 Kf7 f6 Ke6 f7 Ndf6 Rc1 Nh5 f5+ Kf6 Rd7 e1Q Rd5 Kg7 f6+ Kh6 Rd7 Qg3 Re1 Qg1 Re2 Qb2 Rf2 Qb1 Rf5 Kg6 Rfd5+ Kh6 Bf3 Bf5 Be4 Rd8 f8Q+ Kg6 Qe7 Rf8 f7 Kh6 Qe8 Kg6 Rd4 Kf6 Qc8 Ke6 Nf4+ Ke5 Nh3+ Ng3 Bd5 Re8 Qe2 Nh5 f8Q Rd8 Qh6 Re8 Be4 Rf8 Nf2 Kf4 R4d5 Qa1 Qf6 Qb1 Bd3 Rg3 Qee5+ Kf3 Be4+ Ke2 Nh3 Re3 Qh2+ Kd1
2n2R2/2Q4p/B2Pn2N/1p1k2rK/Q1rn4/qR2qbNR/1b1qB1N1/B2N3Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 c5 Kg4 e5 a4 e4 f4 b6 d4 b3 g6+ Kf6 d6 e3 g7 b2 d5 c4 d7 c3 d6 c2 a5 e2 a6 e1Q a7 Qe3 Nc3 b1N Be2 Qe6 Bb2 c1Q Ra3 Qc7 d8Q+ Ne7 g8N+ Kf7 Qa4 Qf1 Ba1 Qa2 Kh5 Bh6 g4 Nec6 f6 Ke6 g5 Bg7 f7 Qf2 f8R Qe7 g6 Nd7 Nh6 Nc5 Rh3 Rg8 Rb3 Na3 Nd1 Nc4 f5+ Kd5 f6 Ne6 f7 Qa3 Qc7 Bb2 g7 Rb8 a8B b5 Bb7 Nb6 Ba6 Ncd4 Ng4 Bb7 Nge3+ Ke4 Ng2 Rc8 Rbg3 Kd5 Rb3 Rh8 g8N Bc6 Nh6 Rg8 Bg4 Qd2 Ne2 Qe8 Ng3 Qe7 Bf5 Rg4 Bd3 Ba8 Be2 Bb7 Qd7 Rc4 Qc7 Bc6 Rc8 Bb7 f8Q Ba8 Rd8 Nc8 Qf1 Qe8+ Qcf7 Qe7 Qh1 Qa7 Rf8 Q7c5 Rf3 Qae3 Qa7 Qca3 Qc7 Qe5+ Ngf5 Ke4 Qca5 Qg3 Rc3 Qge3 Rb3 Ke5 Qb6 Bf3 Ng3 Kd5 Qc7 Rg5+
4N1Q1/3N1qP1/1Rr4k/1pB3R1/2b3Q1/b1rnp2K/qN1Bnr2/QBnB2R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 Kf2 Kg7 Kg3 h5 a4 e5 d4 b5 f6+ Kh7 f5 c5 f7 c4 a5 b3 a6 b2 d6 c3 d7 c2 d5 h4+ Kh3 e4 g4 e3 g6+ Kg7 g5 Qe7 d8N Qb7 a7 Qc6 d6 Rh5 d7 Qd5 f6+ Kh8 g7+ Kh7 g6+ Kh6 Nd2 b1Q Ngf3 Bb4 f8B Ba3 f7 Bb4 Ra6 Nf6 Bd3 Qdb3 Rg1 Qc3 Ne6 Qd4 d8R Nbd7 Nc4 Ne5 Bd2 c1N Rb6 Nd5 Bc5 Rf5 g8Q Nc3 g7 Ba3 f8Q Qd7 Nb2 Qa2 Bb1 Ned3 Ne5 Rf2 Qf5 Qf7 Nd7 N3e2 Qg4 Bb7 Qf1 Rc8 a8B Bd5 Nc7+ Be6 Bc6 Bc4 Ne8 Rc7 Bf3+ Rc6 Qgg2 Nd4 Bd1 Nde2 Kg4 h3 Qe4 h2 Kh3 Be6+ Qg4 Bb3 Ne5 Bc4 Rd5 Nc3 Nd7 h1R+ Kg3 Rhh2 Rg5 Rhg2+ Kh3 N3e2 Qd4 Rg4 Qg2 Re4 Qg4 Re5 Na4 Ree6 Qa1 Rc7 Nb2 Rec6 Nf8 Rc8 Nd7 Be6 Nd6 R6c7 Bcb4 Rc3 Ne8 R8c6 Bc5 Bc4
1r4Bk/2R3p1/N1Knr1R1/1N1qr1RB/1bn1p3/1B2b1PQ/2N2q1Q/3QN2b w - - 0 1 illegal: No extended proof kernel
2k1N3/nR2RBp1/r1brPnR1/3B4/1q2b1KQ/1Qq3N1/1pqB2Qb/5NN1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 b5 e4 c5 h4 f5 a4 b3 d4 b4 d6 f4 e6+ Ke8 d5 b2 a5 b3 d7+ Ke7 d6+ Kf6 a6 c4 a7 c3 e7 Ke6 e8N c2 h6 Qb6 d8N+ Kd7 e5 Qc6+ Kg4 f3 h5 f2 h7 Qc3 h6 Qc6 Nb7 Be7 Nc5+ Kd8+ d7 Bb7 Bd2 c1Q Bc4 f1B Ra6 Bg5 Ne4 Qf6 Ng3 Bh4 Bf7 Qe7 Rg6 Be4 e6 Qc4 Qe2 Bg5 Qg2 Qeb4 Rh5 Be3 Rb5 Qcc3 Rb6 Nc6 Rb7 Rc8 a8B Bb5 Qh2 Na7 Qg2 Ke7 d8R+ Bd7 Qf3 Bf4 Qg2 Rc6 Rdb8 Be5 Rc7 Ra6 Bd5 Bf4 Rb6 Kd8 Rbb7 Bc6 Re7 Bd3 Na3 b1Q Nc2 b2 Ne3 Be4 Nef1 Nf6+ Kh4 Rg8 h8Q Bd6 h7 Qbc2 Kh3 Nd7 Kg4 Rf8 Qg8 Kc8 h8Q Bb8 Qh4 Bc7 Nf6 Rd8 Ne8 Bd6 Qgh8 Bf4 Q8h6 Be5 Qe3 Nf6+ Kg5 Rd6 Qd3 Nh7+ Kg4 Bf4 Qc4 Be5 Qb3 Bf4 Nh5 Bh2 Nhg3 Nf6+
1R2R2B/2b1QpN1/3r1BQq/1RNn4/q1rK4/1BPN1kp1/2r2nN1/1n1b1Q2 w - - 0 1 illegal: No possible last move, all moves rejected
2kr3B/2r2p2/p1B5/B1bb1bq1/KQ1P2Q1/1Nq2N2/1n2R1nR/1QBnR1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 c5 d4 g5 Kd2 a6 Kc2 c4 e4 c3 Kb3 f3 d6 c2 e5 f2 e6+ Ke8 b6 g4 e7 Kd7 e8R g3 b5 g2 b7 Nc6 b8Q Qf6 b6 Ra7 b7 Qh6 Ka4 Qf4 h6 Qe5 h7 Qg3 h5 Nf6 h6 Ng4 Re2 Nb4 Nd2 Qc3 Rh2 Ne3 Nb3 Nd3 Rb1 Rg8 h8B Nf4 h7 Kd8 d7 Bc5 Qd6 Rf8 b8Q Rc7 Qb4 Bb7 Qg6 Bd5 Qdd3 Nd1 Qg4 Rg8 Re1 Rf8 Rb2 Re8 Be2 f1B Bf3 Be2 Qdg6 Bd3 Qgb6 Bf5 Be4 Ke7 d8B+ Kd7 Ra2 Kc8 Bf3 Bc4 Bc6 Bd5 Q6b5 Rd7 Ba5 Rc7 Bf6 Rd8 h8N Bb6 Ng6 Bc5 Ba3 c1N Nh4 Ncd3 Bh8 Qa1 Nhf3 Qc3 Bc1 N3b2+ Ka3 Nbd3 Rae2 N3b2 Nh3 g1Q Qd3 Nc4+ Ka4 Ng2 Qb1 Qge3 Nhg1 Qe7 Rh4 Qg5 Rh2 Ncb2+
4bK2/1p2pbBR/q1qQQR1n/1Q1N2R1/1bB1P2r/1r1B4/1kNn1n1N/1N6 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 g5 fxg5 Na6 gxh5 Nb8 b4 axb4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kc4 h4 f5 e4+ Kc5 d4+ Kb6 a4 Ka5 h6 c5 d6 b3 h7 Kb4 g6 c4 a5 c3 d5 c2 a6 b2 g7 Kb3 h5 f4 h6 f3 d7 f2 Ke6 Qb6+ Kf7 Ra7 d8Q Qa5 d6 Qa3 d7 Ra8 a7 Qa5 Qb6+ Qb4 d8N Bh3 Ra6 Bg4 Qdd6 Bf5 Bd3 f1Q Qb5 Nc6 Nf3 Nd4 Nc6 Bd7 Rg1 Qe2 Bf4 c1N Nh2 Nf3 Be5 Nd2 Rg5 Rd8 a8N Be8+ Ke6 Rc8 Nc7 Ra8 Rb6 Ra3 Nd5 Ka2 Bc3 Qa4 Nd4 Rb3 Nc2 Qa6 Bf6 Qf2 Be5 Qc5 Bd4 Qc6 Bc3 Nf6 g8B Ng4 Bd4 Bg7 Bf7 Rf8 h8R Bf6 h7 Nh6 Bc3 Bg7 Bg8 Rf4 Bf7 Bd4 Bg8 Bc5 Bg7 Rh4 Bf7 Bb4 Bg8 Bg6 Bf7 Qc4 Kd7 Qc5 Ke8 Qc6+ Kf8 Bh5 Nde3 Bg6 Bfc4 Be8 Qe6 Ne2 Nd5 Ng1 Rg8 Nh3 h8Q Nf2 Qh7 Qc5 Qhg6 Qc8 Rh8 Qc6 Nba3 b1B Rh7 Bc3 Qd6 Kb2 Qge6 Ba2 Nb1 Qc8 Rg6 Qc7 Rf6 Bb4 Rc6 Qc8 Rc5 Qd7 Nf4 Qc7 Rg5 Qcc6 Nd5 Ng8 Qed7 Qcb6 Nf4 Qc6 Bf7 Ra3 Qdf5 Be6 Qg4 Rb3 Qgf5 B6d7 Bfc4 Nh6 Nd5 Bf7 Qfe6 Bde8
1rn1N2B/P3N3/4BBn1/1N1b2q1/k2rq1QR/1p1pr1QQ/7R/b1n2QKR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 d5 a4 Kd7 f4 Kc6 Kf2 g5 h4 b5 a5 e5 h6 d4 h5 e4 f6 d3 f7 g4 a6 b3 f5 b4 f6 b2 a7 b3 h7 Qd6 h6 Qe5 Nf3 e3+ Kg1 g3 Ra2 e2 Nd4+ Kd7 c6+ Kc7 c5 e1R Bg5 g2 Nd2 b1Q Nc4 Re2 Nd6 Ba6 N4b5+ Kd8 c7+ Kd7 c8N Kc6 Ne8 Re3 Qg4 Bg7 f8Q Ne7 f7 Bb7 Qg8 Qe1 f8Q Nd7 Bf6 Ng6 Qg3 Nb6 Ne7+ Kd7 Qc4 Rd8 Qcg4+ Qf5 Q4h3 Nc8 Rb2 Rg8 h8R Bd5 h7 Qb4 Rf2 Qe4 Qf7 Rf8 Rf4 Rg8 Rh4 Rf8 Be2 Rg8 Bg4 Rf8 Ng8+ Kc6 Rh2 Qg5 Be6 Bc4 Qhg4 Rd4 Q4h3 Bd5 Ne7+ Kb7 c6+ Kb6 c7 Ka5 Qhg4 Ka4 Rh1 Nb6 c8Q Rg8 Qcc7 Nc8 Q3h3 Rf8 Qcg3 Rg8 Kf2 g1N Kf1 Ne2 Qf8 Nc1 Kg1 Qgf4 Be5 Qg5 Qff1 Rf8 Rh2 Rf2 Bf6 Rf4 Rf8 Rf2 h8B Rc2 Rg8 Rc6 Rf8 Rb6 Rh1 Rb8 Rf7 Bf8 Rfh7 Bg7 Qhg2 Bh6 R4h2 Rb4 Bd4 Bf8 Q2h3 Bg7 Rh4 Rc4 Bc5 Bc3 Bcd4 Ba1 Bdf6 Rd4
2b1qQ2/prBB2rN/5b2/K1br4/1p4PR/RN1B1N2/2Q1Bk1n/1Qn1R2q w - - 0 1 illegal: No proof kernel
2qrB2n/pQ1rB2n/4N3/3R1PKR/4QBbQ/4R1N1/2pBNb2/b2k1qr1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 b4+ Kd4 g4 c5 d6 h5 g5 c4 f6 e6 g6 h3 f7 h2 g7 c3 d7 h4 b6 c2 b5 h3 b7 Rh7 b6 Rh6 Qe1 Nf6 g8R e5+ Kg5 e4 f4 e3 f5 e2 Ra5 Kd3 Rd5+ Ke4 d4 Kd3 Nc3 Bc5 f8B Bd6 Bd2 Nc6 b8Q Ne7 b7 Ng6 Be7 Nh8 Ne4 Rh7 Ng3 Be5 Re8 Qc7 d8N Bd7 Nc6 Qc8 Nd8 Bc6 Ne6 Bb5 Qc7 Rf7 b8B Nh7+ Kg4 Bf6 Qb7 Bg7 Bbf4 Bf6 Bc5 Rd7 Be7 Bc4 Qeb1 Bg7 Q1b4 Bb5 Bg2 e1B N1e2 Bf2 Kh4 Rb8 Bf3 Bc4 Bh5 Be5 Rg8 Ra8 Be8 Bb5 Re1 h1R Rg5 h2 Rh5 Rg1 Qa4 h1Q+ Kg4 Nf8 Kg5 Ba6 Ra5 Rb8 d5 Ba1 d6 Bc4 Rc5 Bd5 Qab4 Bf3 Rb5 Bg4 Ra5 Rc7 d7 Qh3 d8Q+ Rd7 Qdc7 Qf1 Qcc6 Qc7 Qh1 Rbd8 Qh4 Qb8 Qa8 Qc8 Qbb7 Kc4 Qe4+ Kb3 Rd5 Kb2 Nc1 Kb1 Re3 Kb2 Nce2 Nh7+ Kh6 Kb1 Qb7+ Bb2 Bdb4 Bd4 Rg5 Ba1 Rh5 Nf6 Kg5 Kb2 N2d4 Kc1 Bd2+ Kd1 Nde2 Nh7+
1Q2N1Rq/pR2bk1b/2K3p1/n1n5/q1NN1B2/n3BQ2/2R2QPQ/1Br2rr1 w - - 0 1 illegal: No possible last move
k1r2Q2/nqb2p2/1R2B1RN/4QN2/5b1n/2KP1Rpb/r2Qb1bB/2R2N1B w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 h4 c5 e4 Kc7 e6 b5 d3 Kb7 Kd2 g5 a5 g4 h6 c4 a6+ Ka7 e7 b3 e8Q b4 h7 b2 d6 b3 e5 Ne7 e6 Nd5 h5 Bb7 h6 Nc3 d7 Be7 Bh3 Bh4 e7 Nc6 Nf3 Nd5 Ne5 Qc8 d8Q Nb8 Rf1 Nc6 Rf3 Nf4 Kc3 Bf6 Nd2 b1B Nf1 b2 Qd2 Bc2 Qa5 b1B Qf8 Qc7 e8N Bd8 Ng7 Bd1 Nf5 Ba2 Qd5 Rg8 h8R Ng2 h7 Nh4 Ba3 Be2 Bd6 Qd7 Rc1 Bc7 Qb5 Rc8 Qd5 Rg6 Rg8 Ka8 h8R Na7 Rh6 Rf6 Rgg6 g3 Ng4 Re6 Bc5 Rb6 Qe4 Rb2 Qe5 Bb3 Bd4 Ra2 Bg1 Be4 Bh2 Ba4 Rf4 Bg2 Rf3 Qe7 Rb6 Bd7 Rhg6 Be6 Ngh6 Qd7 Kb4 c3 Bg4 c2 Kc3 Nc6 a7 Qd5 N5e3 Bd7 Be6 Qe4 Bd5 Bdh3 Be6 Qd5 Re1 c1B Nef5 Ba3 Rc1 Bad6 Qee3 Bf4 Qe5 Qb5 Ra6 Kb7 a8B+ Kb8 Bb7 Na7 Rb6 Qa6 Ba8+ Qb7 Rf2 Bgf3 Rb3 Qb5 Bc6 Qb7 Rb6 Ka8 Be4 Bh5 Bh1 Bg2 Rf3 Bg4 Kc4 B4h3 Kd4 Re8 Kc3 Rc8
R1RB1bKr/B1Nr2QQ/r1n5/3rnN1p/2pq2R1/P3N3/2b1B3/1B2k1bQ w - - 0 1 illegal: No possible last move
Q1r4n/nNB4Q/2B2R2/K1p3kB/1pN4q/br5R/P2n1N1Q/2rR1bnR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kf7 d4 b5 Kd2 h5 f4 e5 d6 h4 d7 h3 d5 h2 g6+ Kf6 g5+ Kg7 d6 c6 Qh5 e4 Nh3 b3 Kc3 b2 Kb4 e3 Be2 Ra5 Na3 b1N Nc4 Ba6 Nf2 Ne7 f6+ Kg8 f5 Qc7 d8N Bg7 d7 Nd2 f7+ Kf8 Nb7 Bb2 d8R+ Kg7 f8R Rg8 Rd3 Qd8 Rf6 Ra3 Qh3 Qd4 Bh5 Rb3+ Ka5 c5 Qg2 e2 Rh3 e1N Qg3 Ndf3 Bf4 b4 Bc7 Nd2 Rd1 Rc8 Qd6 Qh4 Qf4 Kh8 g7+ Kh7 g8B+ Kg7 g6 Ba3 Qd6 Kh6 g7+ Ng6 Bd5 Kg5 g8Q Nef3 Bc6 Ng1 Qh7 Nh8 Re6 Nb1 f6 Nd2 f7 Bb5 f8Q Ba6 Bd5 Bb5 Rf6 Nc6+ Kb6 Na7 Bc6 Ba6 Ka5 Ne2 Rhf1 h1R Qh2 Ng1 Qe8 Ra8 Qee4 Rg8 Qe8 Bb5 Qa8 Rc8 Ne5 Bd3 Nc4 Be2 Rfe1 Bf1 Rf4 Bg2 Rhe3 Nh3 Rb1 Rf1 Rf6 Ng1 Rh3 Ngf3 Ra1 Rg1 Re2 Rd1 Re1 Rdb1 Rh1 Ng1 Rhf3 Bf1 Rh3 R1b2 Rb1 Rc2 Rd1 Rc1
4R1QB/1N2r2B/b3r1rp/2b2b2/2k2bRP/1n3p1K/1BnQNRNQ/R5q1 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 dxe5 Na6 axb5 Nb8 f4 gxf4 Kf2 Ke7 g4 Ke6 Kg2 a5 h4 d5 e4 f5 c4 a4 c6 a3 c5 f3+ Kh3 f4 g5 a2 b6 f2 b7 d4 c7 h6 g6 d3 c6 d2 g7 f3 Na3 Ne7 g8R Ra6 Bd3 f1R Bb2 Nd5 Nc4 Ra7 Rg4 Qd7 Ne2 Nc3 Rh2 Re1 Rf2 Qe7 Ne3 Qc5 Ng2 Na6 b8B Rg8 Qc1 d1B Qd2 Bb7 c8N Bc2 c7 Na4 Nd6 Rg6 c8R Nb4 Re8+ Be7 Bc7 Ba6 Nb7 Bb1 Ba5 Nc2 Bac3 Qe3 Bd4 Nc5 Bdc3 Kd7 e6+ Kc6 Bh8 Nb3 e5 Bc5 e7 Kd5 e6 Qd4 Be4+ Kc4 Bf5 Rg8 Bh7 Rg6 Nef4 Re4 Ne2 Re3 Rd8 Re5 e8Q Re4 e7 Ree6 Nef4 Qe3 Qg8 Qe1 Re8 Qg1 Nd8 Rd7 Nb7 Rc7 Ra8 Rd7 e8Q Re7 Qed8 Na3 Q8a5 Bf5 Re8 Nc2 Qc7 Bd3 Rc1 a1B Ne2+ Be4 Bbf6 Bd4 Ra1 Be3 Qh2 Bf4 Bb2 Bf5
1NbR1bKn/3BBnN1/1b2pnR1/R3p1P1/1q5r/6BQ/5QN1/1krRQ1b1 w - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 f6 cxd5 g4 e5 fxe5 h3 Kf7 hxg4 Ke8 g5 Bg4 Rh2 Be6 Rh1 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 f4 h5 d4 c5 b6 a5 b7 c4 f5 a4 d6 a3 Kd5 h4 g6 h3 d7 h2 Ke6 a2 Kf7 e6 f6 c3 g7 c2 g5 Kb3 d5 Rh7 d6 Ra7 Qe1 Nc6 b8N Qc7 Ne2 Nb4 Nd2+ Ka4 Nf4 Rh3 Ne4 Kb3 Bb5 Nd3 Ng3 Qc6 Nf5 Rh7 Ng2 Be7 d8B Qc4 d7 Rh4 Bf4 c1B Bg3 Kc2 b4 Bf8 Be7 Rc7 d8R Be3 Bd7 Bb6 b5 Nf4 Rf1 Bg1 b6 h1N b7 Qb4 Rd1 a1B Rf2+ Kb3 Ra2 Nf2 Ra5 Kb2 Bd6 Ne7 g8R Ng4 Rg6 Rc1 Ng7 Nc6 Be7 Kb1 Kg8 Bad4 f7 Bdf2 Na6 Bb6 b8Q Nd4 Qa8 Nb5 Qf3 Nd6 Qff1 Ne2 Nb8 Nf4 Rh6 Ng6 Qff2 Nh8 Rg6 Ne3 Qf3 Nd5 Qh5 Rc4 Qh3 Rh4 Nf5 Bg7 f8Q Bh6 Qf6 Bf8 Ng7 Ndf7 Qff2 Nf6+
1r6/R2b3R/Bnpb3K/1NB5/nP1Q2Q1/r2NnqbB/2N1k1pQ/2Q2R1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 h4 Kd4 b4 a5 h6 f5 e5 g5 b6 a4 b7 a3 e6 c6 h5 a2 d6 Ra5 h7 Nh6 d7 Ra8 e7 Bg7 e8B Qc7 d8N Bd7 Ne2+ Kd3 Nf7 Qe5 Nec3+ Kd4 Na3 Ng8 h6 Na6 b8Q Ne7 Qc8 Qf6 Ne5 Bf8 Nd3 Nc5 Nc2+ Kc4 Bg6 Nd5 Nb5 Ra3 Bh3 Bd6 Rf1 Nb6 Qe1 Re8 h8Q Nca4 h7 Qf7 Qhe5 Qf8 h8R g4+ Kg2 g3 Kf3 Qf7 Rh7 Rh8 Q5e2 Rf8 Qc7 Rb8 Bb2 Qf8 Bd4 Qf6 Bc5 Qc3 Rb1 a1B Qc1 Qf6 Qc8 Bae5 Qh2 Qf7 Ra1 Qf8 Ke2 f3+ Ke3 f2 Bh5 Qf6 Be2 f4+ Ke4 f3 Ke3 Be8 Qg4+ Bf4+ Ke4 Qc3 Kf5 Bd7+ Kg6 Qb3 Rd1 f1N Kh5 Ne3 Rf1 f2 Kg6 Kd5 Ra2 Bfe5 Kh6 Qc3 Nf4+ Ke4 d4 Qd3 d5 Qd1 Bc4 Qf3 Nd3+ Qf4+ Qg5 Kf3 Ra1 Ke2 Ra2 Bc7 d6 Qf3 Qg7 Be8 d7 Bcd6 d8Q Bd7 Qdg5 Bf4 Nc7 Bfe5 Ba6 Bf4 Nb5 Bfe5 Rh1 Bf4 Qd4 Bfe5 Qhg1 f1B Qh2+ Bg2 Rf1 Bf4 Qg1 Bh1 Qh2+ g2 Ra1 Bg3 Qgg4 Rc3 Bb7 Nb2 Ra7 N2a4 Ba6 Ra3
2b1b1R1/nn2NBr1/2p2B2/QrP3n1/R1p1B1Nk/Q2r1R1n/1N3NQK/6q1 w - - 0 1 illegal: No proof kernel
5rb1/RNbk1BR1/1Pb1p3/4qn1b/1pQ3RN/3KQrR1/B4Bn1/1Q4rN w - - 0 1 illegal: No proof kernel
3Q4/4B2N/Rp4pK/R1bNn1rR/1QPrbq2/1B1nQ1rn/4nR2/NkB5 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 Kf6 Kf4 d5 a4 b3 h4 b2 a5 e6 h6 d4 a6 d3 h5 g6 c6 b6 h7 d2 a7 Be7 c7 Bc5 h6 Ne7 Rh5 Ng8 Ne2 Bd7 c8Q Bb4 Ra5 Ba4 Nbc3 b1R Qe1 d1N Qc5 Rb3 Qe3 Ne7 Nd4 Bc6 Bc4 Qf8 f3 Ra3 Nb3 Be4 Na1 Bc5 Bb3 e5+ Kg4 Nd5 f4 Rg8 h8R Nc6 h7 Nf2+ Kh4 Re8 a8R Nh3 R8a6 Rg7 Rg8 Rd7 Rg7 Re6 h8Q Qd6 Qd8+ Ree7 Nb5 Nc3 Nc7 Ne2 Qb4 Qd2 c4 Rd4 Qc8 Red7 Re7 R7d5 Qd8 Bb1 Kg4 e4 Kh4 Ne5 Re6+ Kf7 f6 Bc2 f5 Bd3 Qg5 e3+ Qf4 Be4 Rc6 Nf2 Kg5 Nh3+ Kh6 Ra2 Bb2 Ra3 Qg3 Qc1 Qg5 Qf1 Bc1 Qf4 Rd6 Nc3 Re6 e2 Re8 e1N Re6 Rd7 Nd5 N1d3 Rc6 Re7 Rd6 Ne2 Rc6 Re8 Rd6 Kg8 f7+ Kh8 f8B Kg8 f6 Kf7 Rd7+ Ke6 f7 Re7 Kg7 Re8 Be7 Rh8 Rh4 Rh5 Qh6 Kf5 f8N Rg5 Nh7 Rg2 Rb7 Rg5 Rh5 Qh4 Bf6 Nb2 Nc3 Bf3 Nb1 Ke4 Nc3+ Kd3 Ba4 Rg1 Nd5 Be4 Rf7 Rb3 Qf4 Rg5 Be7 Ra3 Kh6 Rc3 Nb3 Kc2 Na1+ Kb1 Bb3 Rcg3 Qe3 Nbd3 Rf2 Qf4
6Bb/R1NpqQ2/Rr1N3Q/2B2p2/1PB2r1n/rK1b3k/n1n1R1rN/B3Q3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 e4+ Ke6 h4 a5 b4 g5 c5 f5 c6 a4 c7 g4 h6 a3 h7 g3 h5 g2 h6 d3+ Kb3 d2 b6 a2 b7 Ne7 Nc3 Na6 b8R Nc6 Rb7 Nab8 Nd5 Ne7 Qe1 d1N Be3 Qe8 Nf3 g1R Rh2 Nf2 Bc5 Ra6 Ra7 Nd1 Rc2 Bg7 Nh2 Rg8 h8B Nc3 h7 Rg4 Bb5 Rd6 Re2 Ba6 c8N Rb6 Nd6 Ng6 Nc7+ Ke7 e6 Kf6 e7 Kg5 e5 Nh4 e6 Nc6 Bd3 Rf4 Bb5 Qd8 e8Q Be5 e7 Nd4+ Kc4 Bg7 Qf7 Nc2+ Kb3 Bd4 Be5 Rg7 h8Q Qe8 Nf3+ Kg4 Nh2+ Kh3 Qh6 Rg2 Bd3 Bb7 Bc4 Be4 Qff8 Qd8 e8B Bd3 Bef7 Qe7 Bf6 Be5 Bg8 Bd4 Qf7 Be5 Rb1 a1R Rb2 Bd4 Rba2 Be5 R2a6 Ra5 Bg5 Bh8 Bf6 Na2 Ba1 Ra3+
R1B2q1q/R1R2K2/2N2N2/3rrbk1/1n1N1p1b/b4n1p/BQ1Q2NP/QbB5 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 dxe5 Na6 axb5 Nb8 f4 gxf4 Kf2 Ke7 Kf3 a5 Kg4 f5+ Kg5 d5 e4 h5 Kg6 h4 c4 h3 g4 d4 c6 d3 c5 a4 g5 a3 b6 f3 e6 d2 e5 a2 c7 f2 c6 f4 b7 Ra3 Bc4 f1Q Nf3 Qd5 Nh4 Nh6 Nc3 Qa5 Nb5 Qg1 Nd4 Rc3 Ng2 Nd7 b8Q Qa7 Qb2 Ng4 Qdc2 d1B Qd2 Qa3 Bd5 Bb7 c8R Ngf6 c7 Rh5 Ra8 Rc5 c8B Bg4 Bc4 Rd5 Bb3 Kd8 Kf7 Bf5 g6 Qf2 g7 Qh4 g8N Qd6 Rb1 a1B Ne7 Ba6 Rd1 Bad3 Ba2 Rg5 Re1 Qh8 Re3 Bc2 Rea3 Rh5 R3a7 Qb8 Ng8 Ba3 Ne7 Rg5 Qbb4 Bc3 Qb2 Bcb4 Ra1 Bb1 Rc7 Bc5 Nf3 Bg1 Nd4 Bf2 Rc2 Qb4 Rc7 Rc5 Bd5 Bg4 Qa2 Bd3 Qb3 Bb2 R1a7 Bb1 Nf3 Bh4 Qa2 Ra5 Qa1 Ba3 Qdb2 Qc5 Ba2 Nd5 Nd4 Rf5+ Kg6 Ke8 Nec6 Qcf8 e7 Nb4 Qe2 Rd5 Qeb2 Qhf6+ Kh7 Kf7 e8N Qd8 Nf6 Qd6 Nc2 Ke6 Kg6 Rh5 Kg7 Kf5 e6 Qh8+ Kf7 Rg5 e7 Qc5 e8Q Qd6 Nh7 Qh6 Nf6 Rh5 Bb7 Ne5+ Ke7 Nf3 Kf7 Rg5 Qe2 Rh5 Qd2 Rg5 Ke7 Kg6 Bc8 Rge5+ Be6 Bf5 N2d4 Kg5 Kf7 Qc8 Bd7 Qch8 Bc8 Q6f8#
2r3RQ/2n5/1r2B2B/k2nN1P1/1q1qQpQp/qR1NN2b/1RQ1q3/b2B2K1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 f5 d4 h5 b4 c5 e4 Kc7 e5 Kb6 e6 a5 g6 h4 d6 a4 d5 c4 g7 f3 d7 a3 e7 c3 e8Q c2 d6 a2 Nd2 Ra7 Nc4+ Kb7 b6 Ka6 b5+ Kb7 Rb1 a1Q Rb3 Qc7 d8N+ Ka8 d7 Ra2 b7+ Ka7 b6+ Ka6 Ne3+ Ka5 Ne2 Rh6 Kg1 Ka6 Nf4+ Qc4 Rh2 Rc6 Nd3 Rd6 Qe4 Ne7 g8B Qad4 Be2 Bg7 Be6 Nd5 Nf7 Ka5 d8Q Na6 b8Q Nac7 b7 Rb6 Nfe5 Qb4 Qd7 Bf6 Bd2 c1Q Qh7 Bd7 Qbh8 Rc2 b8R Qa3 Rg8 Rc4 Q7g7 Rc3 Qc2 f2+ Kg2 Rcc6 Bd1 Rc3 Kh1 Rcc6 Rg2 f1Q+ Kh2 Qf3 Kg1 Qe2 Ng6 f4 Bf7 Ne6 Bc3 Qe5 Qa2 Nd4 Rf2 Bf5 Be6 Nb5 Bd4 Rc8 Bc5 Nbc3 Bf8 Nb5 Rh2 Qec3 Qb2 Bd4 Nge5 Qf3 Qg5 Nbc7 Bh6 Qcc5 Qc1 Ba1 Rhb2 Qe2 Qc2 Qcc3 Qh5 Qcc5 g5 Bh3 Qg4 Qcd4
1Qr1kB2/2qN2b1/5Q2/p1NK3R/3nbbr1/4q3/B1pN2RP/1QRn1QBb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 c5 Ke4 g5 b4 f3 d4 g4 h6 c4 b6 c3 b5 g3 d6 f5+ Kd5 f4 e4 c2 b7 g2 d7+ Kf7 e5 f2 e6+ Ke7 h7 f3 b6 Nc6 b8N Na7 b7 Qb6 d8B+ Ke8 e7 Bg7 Na6 Kf7 b8Q Ke8 Ba3 Nc6 Nc5 Qb2 Bb6 Qb4 Nd2 Qb3+ Bc4 f1B Rc1 f2 Ngf3 g1B Ne5 Qe3 Ned7 Bd3 Qf1 Nh6 Ba2 Rg8 h8R Ng4 Rh5 Bg6 Ba7 Bf5 Qb1 Be4+ Kc4 Rb8 d5 Bb7 d6 Rc8 Bb4 Bg6 Kd5 Ba8 Qg2 f1Q Qf3 Bf2 Rg1 Bg3 Rg2 Bf4 Qd1 Qa6 Qf1 Qb6 Ba3 Qc7 Bb6 Nf2 Bb4 Bb2 Ba7 Kf7 e8Q+ Kg7 Nce4 Qcb6 Rg3 Rc7 Kc4 Nd1 Ndf6 Qf3 Qb8 Kf7 d7 Rcc8 d8Q Qc7 Bg1 Qe3 Nd7 Be5 Bf8 Nd4+ Nec5 Bh1 Rg2 Be4 Qg5 Ke8 Qh6 Rg5 Qc6 Bg7 Qf6 Bf5 Kd5 Rg4 Nde4 Bh7 Nd2 Be4+
1B1knB1q/2R2r2/r3BNQr/pNnb1R1P/1Q3rQ1/1p3qb1/2Q5/2R1N1K1 w - - 0 1 illegal: No proof kernel
B3Bq1b/KQ4Nk/RNb1b1p1/BN1rQ3/2QRnR1p/P1q2b2/3r3n/5N2 w - - 0 1 illegal: No proof kernel
1r3BNb/Q2q1BrN/2R4r/R4pp1/4NrP1/1bK2Rrn/1N4Q1/2B1k1bQ w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Nc6 h5 Nce7 Qa4 Qd6 Qd1 Ng6 hxg6 Qd8 b4 Kd7 g4 Kd6 e4 Ke5 d4+ Kf6 Kd2 h5 b6 c5 b7 a5 b8R h4 d6 c4 g7 f3 d7 f2 e5+ Kg6 d5 f5 b5 a4 d6 a3 e6 h3 b6 a2 b7 h2 e7 Rh6 e8N Ne7 g8N Nd5 Nef6 Nf4 Nh7 Nh3 Nf3 c3+ Kc2 Ra3 Bc4 f1R Ne1 Rf4 Rf1 h1R Nd2 Be7 Kd3 c2+ Bb3 Qe8 d8B Be6 d7 Bc5 Rf3 Bg1 Be7 Bf7 d8Q Qd7+ Kc3 Ra7 Ba4 Bb3 Rc8 Rh2 b8Q Rg2 Rc4 Rg3 Ne4 Ra8 Qb7 Rb8 Qa5 Kf7 Bb4 Ke6 Qaa7 Ke5 Rc7 Rd8 Rc6 Rb8 Nd3+ Kd5 Rb1 a1B+ Nb2+ Ke5 Qe2 Kd5 Bf8 Ke5 Be3 c1R+ Qc2 Rd1 Qg2 Rdd6 Rd1 Rdg6 Bc1 Rg7 Bb5 Ba2 Rd4 Bb3 Ra4 Kd5 Ra5 Ke5 Nc5 Kd5 Bc4+ Ke5 Nd3+ Ke4 Bf7 Rd6 Qc7 Rgg6 Rf2+ Rgf3 Kd2 Rde6 Qd6 Bh2 Nc4 Bh8 Ncb2 Rg7 Kc3 Rh6 Qh1 Bg1 Rf1 Qc7 Qd8 Qc8 Qdb6 Qe8 Qf2 Qc8 Qfg2 Qd7 Nc4 Rb6 Nd2+ Ke3 Nb2 Rg3 Rd1 Rf2 Ne4+ Ke2+ Rd3 Ke1 Be7 Rff3 Bf8 Rf4 Rf3 Rb8
2n3r1/Q1B1NR1p/3BQ1bk/rR2rBp1/2B2qPK/1RQq4/2rN2Nn/r7 w - - 0 1 illegal: No possible last move, all moves rejected
n2n1BnQ/N1p3N1/n3R1b1/4q1Qq/2Pk2K1/r1pN1nR1/4RRQ1/1B2r2B w - - 0 1 illegal: No proof kernel
1BnQRn1n/R1Bp1R2/4BQ2/2qP2p1/1B3rn1/1Q2N3/3qNr1k/Kr4Nb w - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 h5 a4 e6 e4 Ke7 exf5 Kf7 g4 Bc5 a5 Bb6 axb6 hxg4 Ke2 Ke7 Ke1 Ke8 h4 Kf7 f4 Kf6 d4 c5 Kd2 a5 Kc3 g5 Kb2 c4 h5 a4 h6 a3+ Ka2 g3 h7 e5 b7 g2 b6 c3 b5 c2 Nc3 e4 Rh2 e3 Qf3 e2 Rh4 e1N Bd2 c1Q Bc4 Ne7 Be6 Qf8 Nce2 Nc2 Bb4 Ng6 Qb3 Nc6 b8R Qc5 b7 Ne3 b6 Rf8 h8N Ng4 Rh7 Ra4 Nf7 Nce7 Nd6 Nh8 Nc4 Qd2+ Kb1 Rf7 Ne3 Rf8 Ra8 Rf7 b8B Bb7 Bd6 Nc8 Bc7 Bd5 b7 Bf3 Nh3 g1N b8B Bh1 d5 Nf3 Nhg1 Nfe5 Ra2 Neg6 Ka1 Rf8 Re7 Rf7 Re8 Nf8 Ra7 Nf2 Rb2 a2 Rb1 Ng4 Rf1 Kg7 f6+ Kh6 f5 Kh5 Rf3 Kh4 Rf1 Rg7 f7 Rg8 Nf4 Kg3 f6 Kh2 Rf3 Rg7 Rf1 Rh7 Rf3 Rh3 Rf1 Rf3 Nfe2+ Rf4 Rf3 Ra5 Rf1 Rb5 Rf3 Nfg6 f8Q Rb6 Qe7 Nf8 f7 Rb5 Qd8 Rb7 Rg3 Rf2 Bba5 Rb4 Rf3+ Rf4 Bb4 Qd1+ Kb2 a1R Qf6 Rb1+ Ka2 Nh7 f8Q Qe1 Q8e7 Nf8 Qd8 Qd2+ Nc2 Rb2+ Ka1 Ne5 Ne3 Rh4 Rf5 Rhf4 Qg7 Ng4 Rf7 Qdd4 Qe5 Qd2 Qef6 Rb1+
2RN2bK/1n3p2/1N1nrkB1/3Qp2Q/n2B1P1b/2q2R1b/1Q4B1/1NqRQn2 w - - 0 1 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 exd5 Bh3 d4 Bh6 d6 Kf8 d5 Kg7 c5 Bc8 h3 Kf6 h4 Ra6 d7 Rd6 cxd6 gxh4 Ne2 Bg7 Ng1 Bf8 Kd2 e5 Kd3 c5 Ke4 h5 b4 a4 f4 c4 g4 h3 g5+ Kg7 Kf5 a3 b6 a2 b5 c3 g6 c2 b7 h2 b6 h4 Nf3 h3 Bg2 Rh6 Bb2 c1Q Rf1 h1N Nfd2 h2 Qe1 Qc6 Bd4 Qdc7 Rf3 Qa4 Nc4 Na6 b8Q Qb3 b7 Nc5 Nb6 Nf6 Qa8 Qc3 b8Q Be7 Qab7 Ne6 d8R Ne8 d7 Bh4 d6 Nc5 Qd5 Na4 Qbb7 Qc1 Qb8 Q7c3 Qbb7 Kg8 g7 Re6 Qb8 Kh7 g8B+ Kg7 Bh7 Ng3+ Kg4 h1B Bg6 Nf5 Kh5 Kf6 Qbb7 Ng3+ Kh6 Nf1 Kh7 Re7 Kh8 Re6 Bh3 Bg2 Qb8 Ba6 Rc8 Bd3 d8N Be4 d7 Nd6 Na8 Bf5 Qb2 Bd3 Nb6 Be4 Bh5 Bh7 Bg6 Bg8 Nd2 Q1c2 Rd1 a1N Nb1 Q2d2 Bf2 Nb3 Bd4 Bh1 Bg2 Qdc1 Qde4 Na5 Qf5+ Ke7 Qh5 Nab7 Nc6+ Kf6 d8Q+ Re7 Qd7 Re6 Nd8 Nd2 Bf1 Bg2 Qc6 Bh3 Bg2 Nf1 Qcb5 Re7 Qd5 Re6
1K1Bn3/1rN2Bq1/3k2rQ/3bp1r1/Q2N3R/2NR2B1/1Rq1Pp2/Q2qrRb1 w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bb7 g5 Bc8 h5 Nc6 Ra6 Ne5 Ra1 Ng6 hxg6 Bb7 Bg2 Ba6 Bf1 Bc8 Kf2 Kd7 Kf3 h5 Ke4 e5 b4 a5 d4 c5 g7 f6 b6 h4 d6 a4 Kd5 a3 g6 h3 b7 c4 b8R c3 b5 h2 b6 c2 b7 f3 Bf4 c1Q Nc3 f5 Bg3 a2 Bg2 f2 Nf3 Qc7 Qa4+ Kd8 d7 Ke7 d8R Qh6 Raf1 a1Q Bh3 f4 Be6 Qc1 Bf7 Bh3 Rd6 Qd8 Kc6 Bg2 d5 Nf6 g8Q Ne8 g7 Qc2 Nd4 f3 Qh7 Ra7 g8Q Qg7 Qh6 Rh7 Qa1 Rh8 Qgh7 Rg8 Qe4 Qd7+ Kb6 Qda4 Rdd8 Qd1 Qc2 Qa2 Qa4 Qac2 Rhg1 h1R Rd6 Rh5 Rh1 Rg5 Rh4 Nf6 Kc7 Ne8+ Kc8 Qh8 Rd8 R8g6 Rd6 Qg8 Rd8 Qg7 d6+ Kf6 d7 Ke7 Ra8 Bh1 b8N Kd6 Na6 Be7 Rb8 Bf8 Re1 f1R Rb2 Rg1 Rf1 Be7 Rf2 Re1 Rf1 Bg2 Kb8 Bh1 Rc8 Bd8 Rc4 Bb6 d8B Bc5 Nc7 Bb6 Nde6 Bg1 Nd4 f2 Rcb4 Bd5 R4b3 Be6 Nb1 Bc4 Rd3 Bd5 Nc3 Rb7+
5RB1/Rbb1b1pK/N1n3qQ/rqN1n1N1/B7/6P1/2b1p2R/Bkn2QQR w - - 0 1 illegal: No possible last move, all moves rejected
5kB1/1N4RQ/BN1prBb1/1NpP1R1n/8/1Qnb4/Q2b1RnQ/2n1rKn1 w - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 c6 exf5 Qb6 a5 Bh6 a6 Qb7 axb7 Kd8 cxb5 Bg7 b6 Bf8 b5 Ke8 d4 a5 f4 h5 g4 e5 f6 c5 f7+ Ke7 f5 h3 g5 a4 d5 a3 g6 h2 g7 e4 Qa4 a2 Nd2 e3 Nc4 e2 Nf3 h4 Bb2 h3 Na5 Ra6 Rg1 h1N Nd4 Nc6 b8Q h2 b7 Nf6 g8B Ng3 b6 h1B Qa7 Nfh5 b8Q Be4 b7 Ne5 Nb5 Bh6 f8N Re6 f6+ Ke8 Kf2 e1N f7+ Ke7 Rg2 Ne2 Rg7 N5f3 Qh2 d6 Nd7 Bg6 b8Q Ba6 Nb7 Nfg1 Nb6 Nc3 Rb1 a1N Qa2 Ng2 f8R+ Bf7 Re1 Bd2 Re5 Nb3 Rf5 Nc1 Bd3 Rhh6 Kf1 Re2 Qba8 Nh4 Nd4 Ne4 Rf2 Ng2 Nd8+ Bb7 Rg5 Nf3 Qb3 Be8 Rff5 Ng1 Qaa2 Bf7 Q8a7 Kf8 Bc4 Bc6 Ba6 Bb5 Qb7 Bc4 Nb5 Re6 Bf6 Nc3 Rg4 Be8 Qh7 Bd3 Rg7 Bg6 Nb7 Re1+
N3n1rr/Q6b/2kBK2R/RbNp1nB1/2Q1bp2/1n2BQ1N/4RPb1/5Bb1 w - - 0 1 illegal: No proof kernel
1bk1b1Q1/nNNN4/2Q3K1/p1q3R1/1R2rp2/4b1BB/rQ2pP2/R1Bnr2Q w - - 0 1 illegal: No possible last move
3r4/1bBRRBQ1/3p1Q2/B1Qpr1PQ/pb2q2R/2nN2K1/3nN2N/3k2rb w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c6 axb5 g4 d5 cxd5 h3 Nh6 hxg4 Ng8 g5 Qb6 Rh2 Qc7 Rh1 Qd8 f4 Kf7 Kf2 a5 b4 h5 g4 h4 c4 a4 c5 h3 b6 e6 b5 h2 g6+ Kf6 g5+ Ke7 c6 Kd6 g7 Kc5 f6 Kb4 b7 Be7 c7 Nc6 b8N Qf8 f5 Na5 f7 Ra6 f6 Rd6 b6 Rh5 b7 Rh3 Nd2 Kc3 Nc6 Qe8 f8R Rh4 b8B Nc4 f7 Nb6 Ne2+ Kd3 Kg3 Ke3 Ne5 Nc4 Nd3 Re4 Nf3+ Nd2 Bh3 e5 Be6 Bb7 c8Q Nf6 g8Q Ng4 Qg7 Nf6 Re1 h1B Rg8 Bf8 Bc7 Be7 f8Q Rg4+ Kh2 Rg1 Bf7 Ne4 Qf6 Nc3 Q8g7 e4 Rb1 Ba8 Rh8 Bb7 Rh4 Bf8 Kh3 Qe5 Nh2 Be7 Ndf4 Kf2 Ba3 e3 Bb4 Qe4 Bba5 Bf8 Rb6 Be7 Ra6 Bf8 Ra7 Be7 Ng3 e2 Nd3+ Ke3 Qch8 Bf8 Qc1 Be7 Qh5 Bf8 Rf1 e1R Rf5 Be7 Re5 Bf8 Re7 Re2 Nf4 Kf2 Qa3 Ke1 Nd3+ Kd1 Qb4 Qf3 Qc5 Re5 Qhh8 Qf4 Ne2 Qe4 Qh5 Rc6 Bb8 Rc8 Bbc7 Rd8 Re6 Rf1 Kg3 Bd6 Re7 Re1 Qd4 Bb4 Qc5 d6 Ra8 Rh8 Rd8 Rf1 Rdd7 Rd8 Qfg6 Re1 Q6f6 Rg1+
b1k3rB/q3R3/p1Br1n2/pN1N1bN1/1Q6/1R1PKpb1/1Q2Q2n/2BrB2R w - - 0 1 legal: proof: f4 d5 a4 g5 c4 e5 fxe5 g4 cxd5 g3 a5 b6 hxg3 bxa5 g4 Bb4 g5 Bf8 Kf2 Kd7 b4 f5 g4 c5 e4 h5 d6 f4 d3 c4 b5 c3 g6 h4 g5 h3 g7 h2 b6 a6 b7 c2 e6+ Kc6 d7 Kc7 e7 Rh7 e8R Bd6 e5 Qf6 d8B+ Kd7 g6 Qe7 e6+ Kc6 Nf3 Qd7 e7 Qe6 Qe2 Kd7 Ra3 Rh4 Nc3 Qg4 Rb3 Rh3 Nd5 Rh4 Bg2 Be5 Ng5 Nc6 b8B Nf6 g8Q Qh5 g7 Qh7 Qh8 Rh6 g8Q Nd4 Qf8 Nf3 Ba7 Rg6 Bd4 Rg8 Qhg7 Rb8 Bc3 Rb6 Be1 Rd6 Bb6 Nd2 Bd4 Nf1 Nb4 Kc7 Bc6 Bf5 Qh8 Rd8 Nd5+ Kc8 Rg1 h1B Qhg7 Bg2 Rh1 Bge4 Ba1 f3 Bab2 Nh2 Ke3 Nd7 Ba1 Bg3 Qb2 Bh3 Qf4 Nf6 Qd6 Be6 Qb4 B4f5 Rf8 Be4 e8N B6f5 Rf7 Rd6 Nec7 Qg7 Nb5 Qh7 Bcd2 c1R Re7 Rd1 Bc1 Qf7 Qb1 Nh5 Bh8 Nf6 Qbb2 Qg7 Be8 Qf7 Ndc7 Ba8 Nd5 Qg7 Bc6 Qh7 Re5 Qb7 Re7 Qa7+
n4bNr/3kB2P/b2np3/1r1R2b1/NB2p1B1/2QQnN1p/2RRqK1Q/Q7 w - - 0 1 illegal: No proof kernel
nkN2NRQ/2RpR3/2pB1p2/r3b1N1/2Bb1P2/r1B3Q1/KnQ3n1/3r2Nq w - - 0 1 illegal: No possible last move, all moves rejected
r4nR1/p1Qb4/pB3Krp/rB1qN3/1bR1R2N/Bk3b1N/4QB1P/Q4n2 w - - 0 1 legal: proof: d4 e5 dxe5 c5 a4 f5 b4 f4 bxc5 f3 a5 Nf6 a6 bxa6 gxf3 Qb6 f4 Ng8 f5 Qd8 Kd2 Ke7 Kc3 d5 Kd4 g5 e4 g4 c4 g3 f4 g2 f6+ Ke6 f5+ Kf7 e6+ Ke8 Ke5 h6 e7 Kd7 e8Q+ Kc7 f7 d4 c6 Kb6 c5+ Kc7 f6 d3 Nd2 Bg7 f8B Bh3 Nc4 d2 Ba3 Qd3 Rc1 Be6 Nh3 Ne7 Rg1 Nf5 Qe7+ Kc8 c7 Kb7 c8N+ Kc6 N8d6 Ng3 Nf5 Kb5 c6 Bg8 c7 Qd7 c8Q Nh5 Qc7 Ng3 Nh4 Bd5 Qe6 Rh7 Bfc5 Qd8 Bf2 Bf8 f7 Bb4 f8B Rg7 B8c5 Bc6 Bb6 Qd5+ Kf6 Rg5 e5 Bd7 Qeg4 Rh5 e6 Rg5 Rc2 Ka4 e7 Kb3 Qa1 d1B e8R Bf3 Ne5 Rh5 Bb5 Nf1 Rc4 Rg5 Rh1 g1R Qe4 R1g2 Rg1 Rh5 Re6 Rgg5 Qe2 Rg6+ Kf7 Bc8 Rg2 Nd7 Rgg4 Nf8 Rg2 Rgg5 Kf6 Bd7 Rgg4 Rg8 Rge4 Rg1 Re7 Rg2 Rg7 Rg3 Rg8 Rg2 Qc5 Rg6+ Ke7 Qb7 Nf7 Rd8 Bc6 Rg7 Kf6 Ra8 Qd6 Rd5 Qc7 Ra5 Bb5 Qd5 Ne5 Rg6+
1Rn5/pn1pQ3/7Q/N2rNR2/kbPr1BNQ/4q1rb/n1pB2Q1/2KB1R2 w - - 0 1 illegal: No proof kernel
1QR5/B2N2n1/3RB3/1brN1NqB/rpk2bP1/p1pR2n1/2n1B1K1/1Q2q2Q w - - 0 1 illegal: No proof kernel
2nn1r1k/8/3NNR1p/1R2Rq2/BB1N3K/1bpPQ2p/1R3bBr/bQ1q1Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kg7 Kf2 a5 g4 e5 d6 c5 g5 e4 g6 c4 d3 a4 b6 h6 b7 c3 b5 a3 b6 h3 Kg3 e3 d7 e2 Ra2 Ra6 Nf3 Ra8 Qe1 Nc6 b8Q Qe7 d8N Qf7 b7 Ra6 Ne6+ Kf6 g7 Bd6 Kh4 Ra5 Rb2 a2 Bg2 a1B Nbd2 Bc7 Nfd4 Nd8 Ne4+ Ke7 f6+ Ke8 f5 Ne7 g8B Qg7 f7+ Kd7 f8R Ra2 f6 Bb6 f7 Qh7 Nd6 Qf5 Rf1 Bc5 Re8 Bb6 Qf2 e1Q f8Q Qd1 Qe3 Ba7 Qf6 Bc5 Bf7 Rf8 Rb5 Rc2 Ba3 Re2 Bb4 Ba7 Be4 Rh2 Bg2 Bc5 Qa8 Bb6 b8R Ba6 Qd5 Nc8 Qb3 Bb7 Qb1 Bd5 Rf2 Ba7 R8b6 Bb3 Rc6 Bc5 Rb2 Bb6 Nf4 Bc5 Re5 Bb6 Nfe6 Bc5 Qg6 Ke7 Be8 Bb6 Qgg3 Kf6 Qgf3 Bc5 Bd7 Kg6 Qf1 Kh7 Be8 Bb6 Rc7+ Kg8 Rf7 Kh8 Rf6 Rh1 Ne2 Na7 Qg5 Nf7 Rbd5 Nd8 Ba4 Rh2 Rb5 Bg1 Qe3 Nc8 N2d4 Bf2+
R3Br2/5Bnp/2Q4b/R1K1B2b/QNn1Nr1p/QQ1q4/2p2qPR/3k2qN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Kd7 Ke3 c5 d4 f5 b4 a5 b6 a4 b7 c4 b5 c3 b6 a3 d6 Ke6 d7 Kd5 e6 Kc4 d5 a2 d6 Ne7 Bb2 Bg7 Nd2+ Kb4 Rh2 Bh6+ Kd4 f4 e4 f3 e5 f2 Nh3 Bf8 Bc4 f1Q Nf2 Na6 b8Q Bg7 b7 Qg1 Qa7 Re8 b8Q+ Bb7 Qf3 Qe1 Nh1 Nd5 e7 Rg8 e8Q Ne3 Bf7 Bh6 e6 c2 e7 Qf2 Qf8 Nc7 e8B Rh8 Qe7 Rf8 Qff6 Qc8 d8N Qcf5 Qe4 Qb5 d7 Bd5 Qef4 Bf3 Qbb7 Bh5 Qc5+ Ka4 Nc6 Rb8 d8R Ne6+ Ke5+ Qc4 Kd6 Ng7 Be5 Qe4 Qb1 Rb4 Qe6 Qc4 Ra8+ Qa6 Qa7 Ka3 Kc5 Ra4 Qbb6 Rd4 Qbc7 Kb2 Qcb8+ Kc3 Qed7 Kd3 Qb3+ Ke2 Qe4 Qd3 Nb4 Nf5 Qeb7 Rf4 Ne4 Ng7 Qba6 Rg4 Qdc6 Rf4 Rg1 a1Q Rd1 Qa3 Ra1 Qc1 Qab5 Qcg1 Qaa2 Bg6 Qab2 Bh5 R1a5 Ke1 Q5a4 Kd1 Q2a3 Nc4+
8/Knkrp3/3R2rN/1qBB4/1p1P1QR1/1RNQ1Q2/1nb2prN/bBq1N3 w - - 0 1 illegal: No proof kernel
3RnR2/r5N1/p2R1pNN/1rPQ2Q1/1Q4rn/B3K2b/qB3b1p/1Q1r2kB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 b6 d5 b7 h5 e6 h4 c5 h3 g6 f6 e7 h2 e8N d3 b5 d4 g5 a6 b6 Rh5 g7 Nc6 b8B Nh6 g8Q Qc7 b7 Qb6 g6 Qb4+ Nc3+ Kf5 e4+ Kg5 e5 Kf4 e6+ Ne5 e7 Kg3 g7 Kf2 Qd5 Qb1 g8Q Bd7 Qg5 Bg7 Nb5 Rh3 Ba3 Rh4 Nf3 Be6 Bg2 Nhf7 Nbd6 Ng6 Ne5 Bh3 Nf5 Rg4 Nh6 Nh4 Ng6 Ra7 Be5 Nd6 b8Q Qa2+ Qc2 Bf8 Ng7 Ne8 Qbb7 Nf5 Rhd1 Nh4 Bf1 Kg1 Qb4 Qc4 Qcb1 Qa2+ Ke1 d2+ Ke2 d3+ Ke3 Qc4 Beb2 Qa2 Rc1 d1R Bg2 d2 Bh1 Rf1 Rc4 d1R Rd4 Nc7 e8R Bd6 Rf8 Ne8 Qdb3 Bg3 Rd8 Rd6 Qbd5 Rb6 Q1e4 Rbb7 Rd1 Rb5 Qb1 Be1 Qdc4 Bg3 R1d6 Rd1 Qcd5 Bf2+
Q1Nkb1n1/nQp2R2/3p3P/rq3RK1/N4r2/B1R2r1p/B1r2bB1/N3R2Q w - - 0 1 illegal: No proof kernel
Rq1N4/1r3BB1/3R2p1/2R2Q1p/1p2QB2/N2n1QPr/K2N1nqr/2qNb2k w - - 0 1 illegal: No extended proof kernel
N2NR2R/5p1q/B4BQ1/Qbn3B1/1r2b2Q/Rp1nq2p/4bR1P/1Kb1N1k1 w - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 h5 d4 a5 dxc5 b5 b4 axb4 Be3 h4 Bc1 Rh5 gxh5 Ra6 Nc3 Rh6 Nb1 Rh8 Kd2 Ke7 e4 Ke6 a4 g5 c4 d5 Kc2 g4 c6 d4 a5 g3 h6 h3 h7 g2 c7 Nd7 c5 Qe7 a6 Bg7 a7 Qh4 a8N Qe1 c6 Nc5 Qd2 Bd7 c8Q Na6 c7 Qf2 Na3 d3+ Kb1 b3 Ne2 g1Q Qa5 b4 Bg5 d2 Nc2 d1B Ra3 b2 Qd8 Qf5 c8R Qe3 Ne1 Bh6 Rg1 B7a4 Rg2 Nf6 Rf2 Bb5 Qd3 Rd8 h8B Nd5 Bhf6 Nf4 Qc4+ Rd5 Rh8 Qh7 Qd4 Nd3 Nf4+ Kd7 e6+ Kc6 e5 Nac5 e7 Be2 Qc4 Rd4 Ne6 Re4 Qc2 Kd5 Nd8 Kd4 e8R Rf4 e6+ Ke4 Ka2 b1B+ Ka1 b3 e7 Kf5 Qc4 Kg4 Qe4 Bc2 Qg6 Bb1 Bg2 Rb4 Bb7 Nc1 Ba6 Be4 Reg8 N1d3 e8Q Bf8 Kb1 Bg7 Ba1 Bb2 Qe7 Bc1 Re8 Bd1 Rd2 Bdf3 Baf6 Be2 Nc2 Kf3 Ne1+ Kf2 Rda2 Bf5 Qe4 Kg1 Qh4 Be4 Rb2 Bd1 Rf2 Be2
q2n4/1n2RR1Q/1QN4p/B2rp1kB/N1n1R1p1/1Q1q2P1/bn2r1N1/2K3BR w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 g4 Ra6 Bh6 Ra1 Bg5 hxg5 Bd7 Bd3 Bf5 Bf1 Bc8 f4 Kf7 b4 Kg6 d4 c5 Kd2 e5 f5+ Kf7 f6 Kg6 d6 a5 b6 a4 f7 h6 f8R a3 d7 a2 b7 c4 g3 Nf6 d5 Qe7 d8Q Qd7 b5 Ng8 b6 Qc7 d6 Bf5 d7 Qc8 Nh3 Ne7 Qb3 Be6 Rf7 Nf5 Nc3 Nd6 Na4 Nc6 b8N Qa6 b7 c3+ Kc2 e3 Qdb6 e2 d8B e1Q Bc4 Qf1 Be3 Qd3+ Kc1 c2 Bg1 Qa5 Bc7 Nd8 Nc6 Rh7 b8Q N6b7 Q8a7 Qad5 Rb1 a1N Bb5 Kh5 g6 Rc8 Nf4+ Kg5 g7 Qg2 Qb4 Ba2 g8R+ Rg7 Re8 Nb3+ Kb2 Rg8 Re1 N3a5 Ree7 Nc4+ Kc1 Rg6 Qb1 Rd6 Qb3 Rd7 Re4 Rd5 Bd6 Rc7 Bb4 Rcd7 Be1 R7d6 Ba5 Rf6 Ng6 Rf2 Nf4 Qgf3 Ng2 Re2 Nc3 Qf5 Na4 Qc8 Nb4 Qb8 Be8 Qa8 Nc6 Rd6 Rf2 Nc5 Rh7 Rd5 Bh5 Qf3 Qd7 Ncb7 Rf1 Nd2 Kb2 c1N Kc2 Nd3 Qf7 Nb2 Kc1 Ndc4 Qg8+ Kf5 Re7 Kf6 Qh7 Kg5 Rf2 Qd3 Rf6 Nbd6 Rff7 N6b7
7K/1r1NBr1Q/rN1pB1NQ/p5nB/P1R1R1Qn/1k2n3/4N2p/bb3nR1 w - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 fxg4 h4 g3 Be3 g4 Bc1 Qg5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 b5 c4 a5 a4 h5 e4 g2 f4 h4 c6 h3 g6 g3 g7 b4 c7 b3 c5 b2 f5+ Ke7 e6 h2 Ke5 Nh6 g8Q Na6 f6+ Ke8 e7 Ra7 c6 Nb8 Qh7 Bg7 Qd6 Kf7 e8N Bb7 c8B Na6 c7 Ng8 Ne2 g1N Bg5 g2 Nbc3 b1R Nd5 Nh6 Nb6 Nh3 Rg1 Rb3 Rc1 Nb4 Rc4 Ng4+ Kf5 Nd5 e5 Rg8 Qc6 Ra6 e6+ Kf8 Kg6 d6 f7 Nge3 Nf6 Ke7 f8N Rb5 Bh4 Ng5 Nf6d7 Rh8 Qh6 Ba1 Qc5 Rb2 Kg7 Rh7+ Kg8 Rg7+ Kh8 Rf7 Qd4 Bc6 Qg4 Bb5 Re4 Bd3 Qh7 Bb1 Ng6+ Ke8 e7 Rb5+ Nd4 Rb2 Bc4 Nf1 Ne2 Nde3 Be6 Rb4+ Rd4 Rb5 Bb7 Rb3 Bf3 Rb2 Qf4 Rb5 Bh5 Rb3 Rh1 g1N Qf6 Rb4 Rc4 N1f3 Rg1 Rb2 Na8 Rb8 Nab6 Rb7 Qfg7 Ne4 Bf6 Neg5 Qgh6 Nh4 Bh3 Rg7 c8Q+ Kf7 e8R Ng4 Bg2 Nge3 Be7 Ke6 Bd5+ Kf5 Rc3 Rf7 Bc4 Ke4 Be6 Rg7 Rc4+ Kd3 Rf8 Kd2 Rff4 Kd3 Rfe4 Kd2 Nc3 Kc2 Ne2+ Kb3 Qf8 Ka2 Qf3 Kb3 Qg4 Rf7+
3n1K2/2n3Nk/bpq1pR2/p1Q3RB/p1Q1NN1R/b1r3Bn/P3B1R1/1Q2r3 w - - 0 1 illegal: Other
1Qnqb2k/R2N3p/N6P/3p2Np/r4R1n/KR1QQ1B1/R1b1p2r/2nB3B w - - 0 1 illegal: No proof kernel
r2NN3/3Rbb1p/1Q1P1RrQ/B1R4n/q3NK1n/1r5p/2QB1pp1/2N2B1k w - - 0 1 illegal: Other
1RNR2Q1/1QbP1p1r/2Bp1p1B/bbK2k2/6r1/N4p2/1NR2n2/Q1q1Bn1Q w - - 0 1 illegal: Other
RqqN2rn/2p2B1R/1pp2r1b/QBK1pn2/5Rqk/Q4Q2/1NNBP3/7N w - - 0 1 legal: proof: c4 a5 f4 a4 c5 a3 c6 dxc6 bxa3 Ra6 a4 Ra7 a5 Ra8 h4 g5 fxg5 Ra6 g4 Bf5 h5 Bg6 hxg6 Ra8 Kf2 f5 Ke3 h5 d4 e6 a4 Ke7 a6 h4 g7 h3 g6 Kf6 g5+ Ke7 d5 h2 Kd4 f4 d6+ Ke8 a7 f3 a5 e5+ Kc5 f2 a6 Rh7 Nh3 Qf6 Qd2 Qf7 Qa5 Qf3 Bg2 f1Q Nf2 Qf5 Be4 Qc8 Bd3 Rh4 Na3 Qg4 Bb5 Nf6 g8B Qd1 g7 Kd7 g6 Qf1 Nc2 Rh6 Ra4 Qfg1 Rf4 Nd5 Bf7 Ne3 g8Q Nf5 g7 Rf6 Bd2 Qh3 Qh7 Qgg4 g8Q Bh6 Qg5 Kd8 d7 Ke7 d8N Nd7+ Kc4 Qf1 Qh5 Nf8 Kc5 Qfh3 Qg7 Rc8 a8N Ng6 a7 Nh8 Nb6 Rb8 a8R Rc8 Rf1 h1Q Na4 Q1g2 Nb2 Q2f3 Ne6 Rg8 Nh1 Qd3 R1f2 Qd8 Rh2 Qc8 Nd8 Qe3+ Kb4 Qa7 Rh3 Qab8 Kc5 Re6 Qf8+ Kf6 Rh2 Rd6 Qh3 Kg5 Qha3 Rf6 Rh4 Bg7 Rh7 Bh6 Qf3 Kh4 Qd6 Qd7 Qdd3 Qdc8 Qda3 b6+
QQ5N/pK1p3R/pbB1r3/P2R1NB1/bkp2r2/7Q/n1rNn3/1NB3Rn w - - 0 1 illegal: No proof kernel
2R5/R1BpKb2/pN4pB/1N1r3N/B5NQ/PR1p2n1/1n1Q2pQ/1br2kq1 w - - 0 1 illegal: Other
2Q2Nr1/Q1P3k1/1B1QnNBb/Rpp1pp1p/4Rn2/6R1/Kq2R2N/1br2B2 w - - 0 1 illegal: No possible last move
RQ2B3/R2nK3/3rN2N/7P/1rNpb1Rn/1r2BN2/B3kqrN/N1q5 w - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 e4 a5 bxa5 c5 exf5 e6 d4 cxd4 a4 Ra7 axb5 Rc7 b6 Ra7 b7 Bc5 Bh3 Ra8 Bf1 Bb6 axb6 Qg5 Qf3 Qf6 Qd1 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 Kd6 g5 h4 g4 c4 d3 f4 e5 c5 g3 h6 d2 f6 Ke3 c6 g2 c7 e4 f5 Ne7 h7 Qf8 h5 Nbc6 b8N Qf7 b7 Rf8 h8N Nd5 Qb3+ Nc3 Ra7 Ne7 Rh4 Kf2 Bc4 d1Q+ Nd2 e3 Nc6 e2 b8R e1R Nd4 Ng6 Ngf3 g1R Nf1 Rg3 Rg4 Qg7 f7 Qh7 f6 Ba6 c8B Bb5 N1h2 Nd5 Nc2 Nh4 Na1 Rg8 f8N Qf7 Nfg6 Re4 Nge5 Bc6 Bh6 Qc1 Be3+ Kg2 Qb7 Nb6 Ba2 Rb4 Nc4 Be4 Qc7 Rg7 Ba6 Rg5 Bb5 Rg8 Rf8 Rd8 Qb8 Rg6 Bh6 Kf2 Be3+ Ke2 Ba4 Qg8 Ke7 d5 f7 d4 Be8 Qg7 Rg8 Rdd6 Rf8 Rg5 Rg8 Qg6 f8N Nd7 Nf7 Qf5 Ne6 Qf4 Rf8 Rg2 Nh6 Rgb5 Rf5 Rb7 Rfa5 Rb3 R5a6 R7b4 Ra8 Qg3 R6a7 Qf2
4R3/b1r2B2/N2N1p1r/KNPN1Bn1/Q3BN2/4b3/5p1R/1nRqq1kN w - - 0 1 legal: proof: d4 a5 g4 b5 a4 h5 axb5 c5 gxh5 a4 dxc5 a3 bxa3 Na6 a4 Nb8 a5 Ba6 Qd5 Bb7 Qd1 Bc8 e4 e5 f4 Ke7 f5 Qb6 Bf4 exf4 e5 Bb7 e6 Kf6 e7 Bd5 Nf3 Qd8 Ng1 Be6 fxe6 Qc8 Nc3 Qe8 Nb1 Qd8 Kd2 Ke5 Kc3 Ke4 Kb4 Ke3 e8R Kf2 c4 g5 h4 d5 h6 f6 h5 d4 b6 g4 a6 g3 b7 g2 a7 d3 e7 f3 c6 d2 c5 Qc7 h7 Qe5 c7 Qd5 c8N Qf7 h6 Qg6 Nd6 Bg7 Na3 Qf5 Nh3+ Ke3 Rh2 g1B Nab5 Qe5 Bd3 Na6+ Ka5 Bf8 b8N Nc7 Rc1 Nd5 Bf5 Nc3 Na6 Rc8 a8B Nb1 Nf2 Rc7 Qa4 d1Q Bae4 Ke2 Nh1+ Kf1 Ra8 Bf2 e8B Be3 Bf7 f2 Re8 Qa1 Nc4 Bd6 Nb6 Kg1 Nd5 Ne7 B7e6 Ng6 Bf7 Rg8 h8N Nf4 h7 Ne6 Ng6 Ng5 Ngf4 Rg6 h8N Rh6 Bh5 Qe5 Nf7 Qc3+ Qb4 Be5 Nfd6 Qce1 Bf7 Rc8 Nc4 Bb8 Ncd6 Ba7 Bg4 Qee2 Bgf5 Rc7 Qa4 Qee1+
b3Bb1k/nN1N3q/2n3RB/pq2PQ1B/1R2pN1N/1K5q/R5r1/3N3N w - - 0 1 legal: proof: d4 f5 c4 a5 b4 c5 bxc5 e5 g4 d5 cxd5 h5 gxh5 b5 a4 e4 axb5 Ra7 e3 Re7 Qa4 f4 Qd1 Re5 dxe5 fxe3 h4 Kf7 f4 g5 h6 e2 Kd2 e1Q+ Kc2 g4 d6 g3 c6 g2 h5 Bb7 h7 Kg7 h6+ Kg6 c7 Nf6 c8B Bd5 f5+ Kf7 b6 Qc7+ Nc3 Qc5 d7 Bc6 d8N+ Ke7 b7 Qd4 Ra2 Qb6 Bb5 Qc5 Qh5 Bd5 Be8 Qce3 Nd1 Q1g3 Nh3 Qd4 Rg1 Bc4 Nhf2 Qb6 Nh1 Rg8 h8N Ba6 h7 Qg6 Bh6 Bg7 Qg5 Qc5+ Kb3 Kf8 Be6 Qc6 B6f7 Nd5 f6 Nc7 Qg4 Qc5 Qf5 Nc6 b8R Nb5 Rb7 Nba7 Rb6 Bb7 Rb4 Ba8 Nb7 Qb5 Bf4 Qh6 Bh5 Qc5 f7 Qb5 Bc1 Bf6 Ng6+ Kg7 h8N Be7 f8N Qh7 Nh4 Bc5 Nd7 Bf8 Re1 g1Q N8g6 Qf2 Rg1 Qh2 Bg5 Qg2 Nf4 Kh8 Bh6 Qgf1 Rg6 Qg2 Rd6 Qh2 Rf6 Rg2 Rg6 Qh3+
2N1Nb2/R2Q1bq1/1R3PN1/2R1n1BB/R2qnR2/n1b2n1R/3k2nB/2n3K1 w - - 0 1 illegal: No possible last move
1q2N1r1/1k1BPn2/2bnp3/2B4B/1NQ3Rb/R4N1N/Kq1n1bRr/4N1N1 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e5 axb5 Qd6 c4 Qe7 cxd5 Qd8 dxe5 Ke7 e4 Qd7 e6 Qc6 e5 Nf6 Qe2 Ng8 Qe3 Ke8 e7 Kd7 e6+ Kd6 e8B Qd7 e7 Qd8 Qe6+ fxe6 Kd1 g5 Kc2 a5 Kb3 c5 h4 Kc7 f4 a4+ Ka2 a3 b4 c4 h6 c3 h5 c2 b6+ Kb7 d6 g4 f5 g3 f6 g2 h7 Na6 d7 Qc7 d8N+ Kb8 b5 Qd6 f7 Bh6 f8N Qh2 b7 Bd7 Be3 c1B Nf7 Qf4 Rh2 Kc7 b8N Bg7 h6 Qf3 b6+ Kb7 Bb5 Bgb2 Ng6 Nc7 Nf4 Bg7 Nd3 Bgb2 Nd2 Kc8 Bc5 Qh3 Nc6 Bf6 Ng5 Qf5 Bh5 Bcb2 N5h3 Bh4 Ndf3 Bd4 Nde1 Qf8 Nb4 Bdf2 b7+ Kb8 Ba4 Ne8 Bb5 Kc7 b8N Nd6 N8a6+ Kb7 Nc7 Qb8 Ne8 Bc6 Ba4 Nf6 Bb5 Nf7 Ba4 Rg8 h8R Ne4 h7 Ned6 Bb5 Rg3 Rf8 Rg8 h8Q Ra5 Qc3 Ra6 Ne2 g1N Qc4 Ra8 Rg2 Rh8 Ne5 Nf3 Rfg8 Nd2 N5f3 Rh7 R8g4 Rh8 Rb1 Rh7 Rb3 Rh8 Ka1 a2 Ra3 Rg8 Kb2 Ra5 Neg1 a1Q+ Kc2 Qe5 Ba4 Qe2 Kb2 Qe5+ Ka2 Qf6 Bb6 Re5 Bc5 Re2 Bb5 Be3 Qc2 Be4 Bd7 Bc6 R2g3 Rh2 Qc4 Bf2 Rg2 Qb2+
1N3R1B/RBn1NNnk/p2K3B/q2b4/1rR1b1Q1/5nB1/1BP2rn1/2r1B3 w - - 0 1 legal: proof: b4 c5 g4 h5 gxh5 f5 e4 b5 exf5 a6 a4 e6 axb5 Qc7 d4 cxd4 b6 Bb7 b5 Bc8 b7 Qd8 b6 Bd6 Bc4 Nc6 Bd3 Bb8 Bf1 Ba7 bxa7 Nb8 Ke2 Kf7 Kd3 g5 Kc4 Kg7 Kc5 d5 f4 d3 h4 g4 h6+ Kh7 h5 g3 f6 d2 f5 e5 f7 e4 f8B e3 f6 e2 f7 e1R Rh4 d4 Bb2 g2 Nc3 d3 Qg4 d1N Nh3 g1N Nd5 d2 Bg2 Qd7 Ne7 Qb5+ Kd6 Nc6 b8N Nb4 Bb7 Qa5 Bfg7 Rf1 f8B Rf2 Bgc3 Ne3 Rf1 d1B Be1 Be6 Be5 Ba2 Bg3 Bf3 Bg7 Be4 Bb2 Re2 Rf8 Nf6 Bc1 Nbd5 Bcd2 Rg8 Ng5+ Kh8 h7 Rf2 Bc1 Ng2 Bcf4 Kg7 h8B+ Kh6 Nf7+ Kh7 h6 Nc7 Bfd2 Nh5 Bb2 Ng7 Qh3 Rh8 Bc8 Bg6 Re4 Nh5 Qg4 Bd5 Nd7 Rb8 a8R Nf3 Ra7 Rb4 Bb7 Bf5 Rc4 Bfe4 Rfa8 Rd8 Bdc1 Be6 Be3 B4f5 Kc6 Bd3 Rc8 Bdf5 Nb8 Rd1 Bg5 Bd5+ Kd6 Bfe4 Rf8 Rb1 Nec6 Kg6 h7 Rc1 h8B Kh7 Ne7 Ng7 B5f4 Nd4 Bh6 Nf3
nK2BQ2/2rBBp1k/3nRn1N/4N3/1PbN4/4rR1r/Nr1RNN2/1b1q4 w - - 0 1 legal: proof: c4 g5 d4 b5 a4 a5 f4 e6 h4 Bb7 hxg5 Bg7 b4 Ra7 f5 exf5 c5 Bc8 axb5 Be5 dxe5 Rb7 Bb2 Kf8 Bc1 Rb6 cxb6 Ke8 Kf2 Kf8 Ke3 Kg7 Kf4 h5 g4 c5 e4 d5 g6 h4 g5 d4 b7 a4 e6 d3 Ke5 a3 e7 f4 e8R d2 b6 a2 Bh3 c4 Nc3 f3 Nge2 f2 Rf1 Nd7+ Kd6 Nh6 b8N Nf6+ Nd7 Rf8 e5 Kh8 e6 Nfg8 b7 Kg7 b8N Nf5+ Kc6 Kh8 g7+ Kh7 e7 Ba6 Rb1 a1R Na2 c3 Rb2 Bd3 Kb7 c2 Nc6 Rb1 Bg4 h3 g6+ Kh6 Ka7 h2 Bh3 h1R Kb7 Nf6 g8N+ Kg7 Nh6 Nd5 Ng4 Nb6 Ka7 Na8 Kb7 Kg8 g7 Kh7 g8N Rh2 N8h6 Rg8 Ne3 Rg3 Nde5 Qd5 Bg4 Rhh3 Kb8 Qb3 Nd5 Qa4 Ndc3 Qb3 Ne4 Qd5 Rb3 Rb2 Rh1 f1N Nf2 N1e3 Rg1 Be4 Rd3 Rf3 Rg3 Qb3 Rd6 Nd5 Red8 Qa4 e8B Rfb3 Rf3 Bd3 Nh1 Ra3 Qg1 d1B Bg5 c1R Qc5 Bb3 Nf2 Bb1 Rf6 Rc4 Qf8 Rc5 Rfd6 Bc4 Be7 Nf6 Rd2 Rd3 Rd6 Re3 Ncd4 Rc7 Rc6 Qd1 Ra6 Ng3 Bgd7 Nf5 Re6 Nd6
1NNn1KR1/8/N1nbQ1B1/2q1B2p/3bPRBr/N2Nq1Rq/r7/k2Nq3 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 d5 cxd5 g5 a4 Bf5 axb5 Bg6 h3 f5 Ra3 exf4 Ra1 Bh5 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Kf7 Qc2 Ke7 Qd1 Ke8 e4 Ke7 Ke2 Kf6 Kd3 Ke5 Kc4 c5 b4 a5 d4+ Kd6 f6 h5 b6 g2 f7 a4 b5 f3 b7 a3 b6 f2 g5 a2 g6 Nc6 b8N Rh6 g7 Ra3 b7 Rh3 Na6 Qh4 b8N Nf6 g8B Bg7 f8R Ne8 Bf4+ Be5 Qb3 Nd8 Bh7 Nb7 Bg6 Rd3 Nh3 g1B Na3 Rf3 Be2 f1Q Nf2 Qg5 Nd1 Rh3 Rg8 Bh2 Rg1 Nd8 Rg3 Nf6 Rc1 Qg2 Bg4 a1Q Rcc3 Bg1 Rcf3 Rh4 Kb5 c4 Kb4 Ke7 Kc5 c3 Qa2 Bc7 Be5 c2 Rf4 Qh3 Qb3 Qb1 Qb6 Qf5 d6+ Ke6 Qc6 Nd5 d7+ Ke7 Qb6 Rh7 Qb3 c1Q+ Qc4 Qe3 Qa2 Nf7 d8N Bd6+ Kc6 Rh8 Nb7 Ke6 Qc4 Qb4 Qb3 Qbe1 Nbc5+ Ke7 Nd3 Ke6 Nd7 Bf2 Nb6 Rh7 Nc8 Nd8+ Kb5 Rb7+ Kc4 Ne7 d5+ Kd7 Qa2 Rb2 Qb3 Ra2 Kb5 Bc5 d6 Bg1 Kc4 Kc6 d7 Bh2 Qb8 Bd4 Qd6+ Kb7 Qe6 Qg5 Nd6+ Kb6 Nc8+ Ka5 Qb6+ Ka4 Qe6 Nf5 Kd5 Ne7+ Kd6 Qf5 Qf6 Kb3 Qf7+ Ne6 d8N Qg5 Qe8 Qf5 Nc6 Nd8 Ncb8 Qf8 Nc4 Kc2 Qc6 Kb1 Na3+ Ka1 Kd7 Qf5+ Ke8 Qg5 Qe6 Qf5 Bg7 Qc5 Kf8 Qca5 Rf6 Rg2 Rgf3 Bd6 Rg3 Ra2 Rf4 Qc5 Be5 Nec6+
1Nrq1nnB/1q2R3/1B1Q1N2/4K3/nBp3PB/2q3NR/bBR5/1kb2bB1 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f5 Ba6 f7+ Kd7 cxd3 Bc8 d4 Nf6 d5 Ng8 h4 a5 g4 Ra6 Bd3 Re6+ Be4 Re5 f6 Rg5 Bf5+ gxf5 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 Kf2 Kd6 Kf3 Ke5 b4 Kd4 Kf4 Kd3 d6 h5 g6 c5 d7 h4 g7 e6 b6 h3 b5 a4 b7 c4 b6 a3 Nc3 h2 Ne4 a2 Ke5 f4 Ne2 f3 N2g3 f2 Bb2 f1B Rc1 a1Q Rc2 Nh6 g8R Rh7 Rg7 Ba3 f8B Ng8 f7 Rh3 Bc5 Rh8 f8B Qc1 Re7 Qa1 Bbd4 Bc1 Nf6 Qa3 Bb2 Qc3+ Kd6 e5 Bg1 e4 Kd5 Qc7 d8B Nd7 b8B e3 b7 e2 Bba7 e1N Bad4 Qb8 B8b6 Qc7 b8N Qd8 Be5 Bb7+ Ke6 Bc6 Kf5 Ba4 Ke6 Bb3 Bed4 Ng2 Kf5 Nc5 Ke5 Qa5 Bdc3 Nh4 Bg7 Ba2 Bb4 Rh7 Bh8 Qa3 Qe1 Na4 Qf2 Rf7 Qc5 Rf8 Qc7 Nf5 Qc5 Nd4 Qd6 Qc3 Ngh5 Ke2 Ng3+ Kd1 d3 Ne6+ d4 Qd2 d5 Re8 Qc7 Nf8 d6 Qd3 d7 Qc3+ Bgd4 Qc8 Qd6 Qd8 Rg1 h1Q Rgg2 Qh3 Rh2 Qg2 Rh3 Qb7 Rch2 Qd2 Bg1 Kc2 Rg2 Kb1 Rf2 Qdc8 d8B Qd3 Rc2 Qcd7 Bdc7 Rc8 Bbf2 Qe8 Bcb6 Qa3 Ne2 Qaf3 Bh4 Qd8 Ng3 Qc3+
BBnrR3/2R2bn1/3bB3/QR1p2k1/R2P1q2/2N3nR/N1p2NKq/6Rq w - - 0 1 illegal: No possible last move
6B1/3R1QqR/pn1BRrp1/4bk1r/1r2nN1R/1PNK3R/B1R5/4N1nn w - - 0 1 legal: proof: e4 d5 g4 f5 exf5 b5 a4 h5 axb5 hxg4 c4 a6 cxd5 Nc6 d6 Na7 b6 c6 b7 Rb8 bxc8B Rb4 Bb7 Rb5 Ba8 Rc5 Ke2 Kf7 d4 Kf6 f4 e5 h4 g3 h5 g6 d7 g2 d5 e4 d6 e3 h6 Rc4 h7 c5 Nc3 Nc6 Rh3 Nb8 Qb3 Qc8 d8N Ne7 d7 Rg8 h8R Qc7 Ne6 Nc8 d8R Nd6 R8h4 Nc6 Nf3 g1R Ra2 Rh1 Rd7 Bh6 Kd3 e2 Ne1 Na5 Bd5 Rb4 Qc4 Qa7 b3 Qc7 Ba3 Bg7 Rc2 Rf8 Bfg2 Bh8 Rdh7 Qg7 Bge4 Ke7 f6+ Kd7 Bf3 Ne4 f7 Ke7 f5 Kf6 Bg2 Ke5 f6 Kf5 Nf4 Rh2 Qd4 Nc4 Qf2 Nb6 Bc4 Re8 f8R Re6 f7 Rf6 Bd5 Rh1 Re8 c4+ Ke3 Rh2 f8R Rh1 Re6 Rh2 Ned3 e1N Rf7 Nf3 Ne1 Ng1 Rd7 Rh1 Nb1 c3 Kd3 Ra4 Bd6 Rb4 Re8 Rh2 Bg8 Rh1 Re6 Rh2 Ra2 c2 Nc3 c1N+ Ke3 Rf7 Rc2 Nce2 Kd3 N2g3 Bf3 Nh1 Bg4+ Kg5 Bf5 Rf6 Qc5 Ne2 Qc8 Ng1 Qe8 Re2 Qe7 Rh2 Qf7 Qf8 Re3 Qh6 Rf2 Qf8 Kc2 Nd2 R4h6 Bg7 Be4 Rf5 Ref3 Rh4 Rh3 Be5 Rfh2 Rf6 Re2 Rg4 R6h4 Qg7 Bd3 Ne4 Rg2 Nef2 Kd2 Rg3 Bb1 Ne4+ Kc2 Kf5 Ba2 Rg5 Kd3 Rh5 Rd2 Ng5 Rc2 Ne4
qNnq4/pPRQbR2/2R4n/2p1NK1n/4B3/Rp1B1RN1/1p6/R3B1kr w - - 0 1 illegal: Other
Q1nk1r2/B2nnbKN/r2R2B1/2qNb1R1/b2N2B1/3b3P/BB2b1B1/2q4R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 d5 Kg3 g5 b4 a5 c4 f5 e4 d3 b6 a4 b5 d2 h6 d4 h7 d3 h3 g4 Kf4 g3 b7 a3 b6 g2 e6 a2 Ke5 f4 c5 f3 c6 f2 e7 Ra4 c7 Ra8 Qa4+ Qd7 Ne2 d1B Nd4 g1N Bb2 d2 Nc3 Ra5+ Nd5 Ne2 Rg1 Na6 b8N Nf6 b7 Nc3 Rg5 Nb5 Bg2 Bf3 Rh1 Qc6 Nd7 d1B b8B Bg7 Nf8 Be6 c8B Bf7 Bg4 f1B Kf5 a1Q e5 Rg8 h8R Na7 Rh6 Nc5 Nh7 Qc1 Qa1 Kd7 e6+ Kc8 Qa3 Ncd7 Qa4 Qb6 Qc6+ Qc7 Qa8 Rf8 Rhg6 Ba4 Rh6 Bg8 Kg6 Ra6 e8B Qa1 e7 Qc5 Bf7 Qac1 e8B Kd8 Nc3 Nc8 Ba7 Nd5+ Bfe6 Be5 Bf7 Bf4 Kg7 Ne7 Ba2 Bd3 Rd6 Bfe2 Bg6 Bf7 Nd5 Be5+
k1bb4/B2Nq3/B1N3n1/3N1nRr/2BBqB2/1R1P4/nK2nQ1q/rBr4R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 a5 e4 f5 g6 h5 g7 c5 g5 Kc7 e5 Kb7 b6 h4 b5 c4 e6 a4 d6 f3 d7 c3 e7 c2 e8B a3 g6 f4 Nc3 a2 Qe2 h3 Qf2 h2 Nd5 Qh4 d8B Bb4 Rb1 a1R Bf6 R8a5 Bd4 Nd7 Ne2 Ne5 Rb3 Nh6 g8R Nf5 g7 Ka8 Bg6 Be7 Bh7 Bd8 b7+ Kb8 Bg6 Rh5 Bh7 Qe7 Bg6 Qc5 Bh7 Ka7 b8N Ka8 b6 Qe7 Nd7 Rb5 Bg6 Rc5 Bh7 Ng6 b7+ Ka7 b8B+ Ka8 Ba7 Rc3 Rg1 h1Q Rh8 Qh2 g8B Rc6 Rg5 Rc5 Be3 Qe4 Nd4 Rc7 Ba6 Rc4 Qg3 f2+ Ke2 f1N+ Qf2 Qe7 Kd3 f3 Nc6 N1g3 Bb2 Rc5 Bf4 Ne2 Bc3 c1N+ Kc2 Qe4+ Kb2 Na2 Bd4 Qe7 Ndb4 Rc3 Bgc4 Rcc1 Nd5 Qe4 Qf1 f2 Qg2 f1Q Qf2 Nf8 Bg6 Qe1 Rh7 Nh6 Rh8 Qe7 Bb1 Ng6 d3 Nf5 Rg1 Rh7 Rh1 Q1b4 Rg8 Rh5 Rg7 Qe4 Rg8 Qbe7 Rg7 Nh8 Rg5 Ng6
Bk1N4/1P6/1B1b1n2/rNB1Bn1B/R1Q3Nb/1n2n3/B1b1rRR1/qn2n1K1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 h5 d4 f5 b4 a5 e4 c5 g6 Kc7 e5 c4 g5 c3 b6+ Kb7 b5 h4 g7 f3 e6 f4 g6 a4 e7 a3 e8B h3 d6 h2 d5 a2 d7 c2 d6 Rh4 Be3 c1N Na3 Ra5 Qc2 Nc6 Qc4 Qf6 d8B Bf5 d7 Ne5 Nh3 Bc2 Bc5 Nb3 Bg2 Kb8 b7 Bd6 Rhf1 h1N+ Kg1 Nd3 Bdb6 Ne1 d8N Ng3 Nf2 Nf5 Ng4 Rh2 Rf2 Qb2 Bf7 Nf6 g8R Qb1 g7 Qc1 Rb1 a1B Bh5 Bc3 Rb2 Qa1 Re8 Bd4 Re4 B4e5 g8B Be7 Bh1 B5d6 Rf1 Re2 Rf2 Ne8 Ra2 Bh4 Rg2 Rd2 Ree2 Nf6 Ref2 Re2 Nb1 Nd3 Ra4 Ne1 Na3 Re7 Rd2 Ra6 Qd3 Re8 Rg3 Qb1 Ba5 Na1 Ba2 Re6 Qc4 Bf8 Be7 Nb3 Bg2 Qa1 Bc7+ Ka7 b8B+ Ka8 b6 Ra5 Nc6 f2+ Kh1 f1N Bc5 f3 Nb5 f2 Nd8+ Re4 Ba7 Be7 Be5 Bd6 Re2 Nfd2 Kh2 f1N+ Kg1 N1e3 Rf2 Ned5 Bf3 Re2 Rgg2 Qb2 Nf7 Kb7 Nd8+ Kc8 Be4 Nde3 Ba8 Nb1 b7+ Kd7 Nd4 Kc7 Bab6+ Kb8 Nb5 Qa1
N2kb1bB/n1n2qPR/3B1K2/2Rr1Rn1/5qB1/1r2b2n/bN6/BBN1Q1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 a5 b4 c5 d4 h5 g4 h4 e4 c4 g6 h3 b6 c3 e5 h2 b5 c2 g7 a4 d6 a3 b7 a2 d7+ Ke7 e6 Ra3+ Nc3 Qb6 d8R Nf6 g8B Rh5 g5 Ra6 d5 Rh6 g6 Ra7 Bb2 c1Q Bh3 Bd7 Qe1 Ne8 Nd1 Ra5 Bh8 Nc6 b8B Qb7 g7 Nc7 b6 Be8 Nb2 Na7 Bg4 Rf6 Rb1 a1N Bh7 Nb3 Ne2 Nc5 Rc8 Ne4 Ra1 Qc4 Nc1 Rc5 Rf1 h1N Ra5 Nhf2 Rh1 Rf7 Rh5 Nh3 d6+ Kf6 e7 Rd5 d7 Neg5+ Kg2 f3+ Kg3 f2 Kh4 f1B d8B f4 Bb1 f3 Rh7 f2 Rc5 Qba6 b7 Qf4 Ra5 Qe6 Rb5 Nc6 Ba7 Bc4 b8B f1B Bg1 Ba2 Ra5 Bfc4 Kh5 Nb5 Bd6 Nca7 Rc5 Nc7 Rab5 Na8 Ba5 Nc7 Bd2 Qef5 Bde3 Ke6 Bd4+ Kd7 Bf6 Qe6 Kg6 Kc8 Nd1 Qd7 Ba1 Bcb3 Nb2 Rff5+ Kh6 Rd3 Ra5 Bg8 Rab5 Rb3 Ra5 Bef7 e8N Kd8 Rab5 Rd5 Ra5 Na6 Nc7 Be8 Na8 Nc7 Rab5 Be7 Ra5 Bf6 Rab5 Bd4 Ra5 Nf7+ Kg6 Be3 Rab5 Qa4 Kf6 Nfg5 Rb6 Qc4 Rb4 Qf1+ Rf4 Qa4 Rf5 Qaf4 Be2 Q1f3 Bd1 Qh5 Bg4 Qf7#
1nBN2N1/B7/nqN1N2q/2NRn1Q1/2b2q2/2KbrRR1/1NPp3b/2B2r1k w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 Kf6 h4 d5 b4 a5 b6 g5 b7 e5 h6 e4 h5 g4 b5 a4 h7 a3 h6 a2 b6 d3 Rh5 d4 Nf3 g3 Ne5 g2 Na3 g1N Qg4 Ne7 Nac4 Na6 b8B Be6 b7 Nc6 Ba7 Ncb8 Nb2 Bd6 Bh3 Re8 h8N Qb6 h7 Bc4 Nhf7 Re6 Rb1 a1Q h8N Qa4 Nhg6 Re7 Nc6 e3+ Kd1 e2+ Kd2 Re6 Nfd8 Re3 Ra1 Bc7 Ra3 Qab4+ Rc3 Qf8 Nge7 Qh6 Na5 Bd6 Nb3 Be5 Nc5 Bc7 Ke1 d2+ Kf2 d1B Ke1 d3 Kd2 Nc6 b8N Rf3 Qg3 Rf1 Bg4 Nab4 Bh3 Qb5 Bb6 Ra3 Qg2 Na6 Ba7 Qb6 Bg4 Nh3 Qg1 Ng5 Rb3 Nf7 Ng8+ Kg7 f6+ Kg6 Rd5 Be5 Bh3+ Kh5 Qg2 Kh4 Bc8 Bd6 Qg6 Bc7 Qf5 Kg3 Qh5 Kg2 Rc3 Qh7 f5 Bh2 Qh4 Qh8 Qg5+ Kh1 Rb3 Nfe5 f7 Qf6 f8N Qh6 Rc3 Rb3 f6 Ra3 f7 Rb3 Ke3 d2 Nfe6 Ra3 Ke4 e1Q+ Re3 Bde2 f8R Qf2 Rg3 Nd7 Rf7 Nce5 Nbc6 Re3+ Kd4 Bed3 Kc3 Ndb8 Rf5 Qf3 Rf7 Qg4 Rff3 Qf4
Q3N3/2rK2B1/2rbB3/1r1BRn1R/P3b1n1/3pqR2/2Bk1BNq/1bNn2B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 a4 e5 c4 g4 f4 b3 h4 b4 h6 g3 h7 g2 c6 d6 h5 b2 c5 b3 c7 e4 c6 e3 h6 e2 Na3 b1R Nc4 e1N Be3 b2 Rh5 Ra6 Ne2 g1Q Bg2 Qe7 Bf2 Qh2 Nc1 Qd8 Ne3 Qe8 Qf3 Bd7 c8B Nd3 c7 Bb5 Be6 Qd8 c8B Ke7 f6+ Ke8 f7+ Ke7 f5 Kf6 Bh1 Rc6 Ng2 Qe8 Bcd7 Be7 f8N Ba6 Ra3 Bb7 Rb3 Ba8 Rb5 Bb7 Bg1 Nf2 Rc5 Nd1 Rb5 Qc8 Be8 Nd7 Bg6 Qe8 Qe4 Bd8 Rc5 Ne5 Nd7+ Ke7 Bf2 Ng4 Nf6 Bc7 Bg1 Qa8 Ra5 Qa7 Ne8 Qe3 Bf2 Ra1 Rc5 b1B Bg1 Ra2 Rb5 Rb2 f6+ Kd8 f7 Ke7 Rc5 Rb5 f8R Ba8 Rf3 Bb7 Re5 Bb8 Bgf5 Ba8 Ng7 Kf6 Ne8+ Kg5 Bf7 Qg3 Ke6 d5+ Kd7 d4 B7e6 Ne7 Rcd5 Rf8 h8B Bd6 h7 Qh2 Bg7 Rg8 h8B Rf8 Nf6 Rfc8 Ne8 Bb7 Rc5 Ba8 Qd5 Bb7 Bc2+ Nf5 Bf8 d3 Bhg7 Ba8 Qe4 Ra6 Qb7 Rab6 Qa6 Be4 Qa8 Rbc6 Rcd5 Bb8 Bc5 Bd6 Rf1 Qef4 Bcf2 Qe3 Ne1 Kf4 Ng2+ Kf3 Rc5 Nd4 Rh5 Nf5 Re5 Bd5 Bh4+ Qf2 Ne1+ Kf4 Be4 Ke3 Ng2+ Kd2 Bg3 Qe3 Rf3 Rcb6 B3f2 Bb7 B4d5 Ra6 Bc4 Be4 B4b3 Rac6 Bbd5 R8c7+
1R2R2b/1nRR1P1r/7B/r1N1RR1N/b2n2qq/2Q3Bp/q2rBnkN/2K5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 f6 a5 f7 c4 g5 e4 f5 a4 f6 a3 b6 h3 b5 a2 b7 h2 b6 h4 g6 h3 g7 Ra6 Be2 Rh4 Qe1 Rh5 Nc3 Nh6 g8N Nf5 Na4 Nd7 b8R Bg7 f8R Rh7 b7 Nc5 Nf3 Qd7 f7 Ra7 Re8 Bh8 Nf6 Ra5 Rf1 h1N Nh5 Nf2 Re5 c3+ Kc2 e3 Nh2 Qe6 Bd2 Qg6 Rc1 Bd7 Rbe8 a1R b8R Nb7 Nc5 R1a2+ Kb1 Qg1 Rc2 Ba4 Kc1 Ne4 Qg3 Nf2 Qg7 Qg4 Be1 Kc7 d6+ Kc6 d7 Kd6 d5 Nd4 d8B Rb2 Bf3 e2 Bg5 Ra2 Bh6 Rb2 Bed2 e1Q+ Bd1 Qee2 Be1 Qc4 Be2 Qa2 Bed2 Qh4 Bdf4 Qg4 Bg3 Qh4 Rd2 Qg4 Rd3 Rd2 Rf3 c2 Rff5 Kc7 d6+ Kc6 d7 Kd6 Re1 Qh4 R5e7+ Kc6 Be5 Kd5 Qg3 Qg4 Qc3 Qh4 Nd3 Ke4 d8R Qg4 Rdd7 Bc6 Bd1+ Qe2 Rc7 Ne6 Red7 Bb5 Ng4 Bc6 Bef4 Kf3 Bg3+ Kg2 Nc5 Qec4 Nh2 Qh4 Bg4 Nd4 R1e5 Ba4 Bd1 Qd5 Kb2 Qf3 Be2 Qfg4 Ka3 c1Q+ Qb2 Qc4 Qc3 Nc2+ Kb2 Nd4+ Kc1 Qa2
1RRQ1R1n/Pb1N1r2/5K1R/1BrB4/1B2NRR1/2p1r1qn/1b4N1/k2n2nb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 b4 d6 b2 a5 b3 a6 c4 a7 h4 g6+ Kf6 d7 h3 g7 h2 d5 Rh7 d6 Na6 Bd3 Nh6 g8R Nf7 Ne2 Nh8 Nd2 b1R Ba3 b2 Bb4 Nc7 Ra4 Ne6 Rg7 Qe8 d8R Qg6 d7 Rc1 Kd5 Ba6 Rc8 b1N d8R e4 Rb8 e3 Rdc8 Rc2 Rg8 Bg7 g5+ Kf7 f6 Nc3+ Ke5 Bb7 f5 Nf4 Ne4 Nh3 Nf4 e2 Qd2 e1N Ng2 Nd1 Bf1 Rc3 Qd8 Re3 Bd3 c3 Bb5 Bf8 Ba5 Ba3 Bb4 Qh6 Rg6 Bb2 Rf1 h1B Rf4 Qg7 Rh6 Nc2 Rg4 Nd4 Rf4 Ne2 Rg4 Qf8 Rf4 Neg1 g6+ Kg8 f7+ Kg7 Rhh4 Qg8 f8N Rh5 Rhg4 Rh7 f6+ Kh6 Nd7 Rf7 g7 Kh7 Kd6 Kh6 Rh4+ Kg6 Rfg4+ Kf5 Ra6 Qh7 g8B Qg6 Ra4 Qg5 Rh6 Qg6 Kc7 Ke6 Rf4 Kd5 Rg4 Kd4 Kd6 Qg5 Ke6 Qf4 Rc4+ Kd3 Rc7+ Kc2 Rcc8 Qg3 Kf5 Rh7 f7 Kb1 f8R Rg7 Ba2+ Ka1 Kf6 Rg5 Rf4 Rc5 Bd5+ Ba3 Rg4 Qc7 Nd6 Rc6 Rfg8 Nf4 Bc5 Nb2 Qf8 Ba6 Rd8 Nd1 Rb6 Nfh3 Rac4 Nf7 Bb4 Rc5 Re8 Rd8 Rb8 Bb2 Rgh8 Bb7 Ree4 Rc6 Qe7 Re8 Qd8 Re7 Rf8 Nh8 Re5 Rc5 Rf5 Rg7 Ne4 Qg3 Rff4 Rc8 Rc6 Rc7 Rd6 Rc5 Rc6 Re7 Rcc8 Rf7+
2B5/nBb5/NN1kr1nb/3p2r1/b4NQB/1Pb1Nr2/1NRRq3/1RK2qN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 h4 Kd7 f4 e5 c4 a5 h6 g5 h5 d3 b6 e4 c5 g4 f6 a4 b3 a3 f7 a2 c6+ Kd6 b7 g3 f5 g2 h7 Qh4 c7 Qg4 h6 Qh4 f6 Ne7 Nc3 Qh3 Rb1 a1B Na4 Nd7 b8N Qh4 Rh2 Ra5 Qg4 Ng6 Nb2 Nde5 Na6 Rg8 h8R Be6 c8B Nc6 h7 e3+ Kd1 Bg7 f8N d2 f7 Bh6 Nd7 Ra2 f8N Qf6 Nb6 Na7 Nfd7 e2+ Kc2 e1R Ne5 Bd7 Nec4+ Kc6 Bd3 Re6 Ne3 Qf1 Bf5 Kd6 Bb7 Rg7 Rc8 Ba4 h8N Rf7 Be4 Rf3 Bf5 Nf4 Ng6 d1Q+ Kc3 Qde1+ Kc2 Qee2+ Bd2 Qff2 Kc1 Qff1+ Nbd1 Bd4 Rc2 Bc3 Be1 Ra1 Nb2 Ra2 Ne5 Ng6 Ned3 Ra1 Nf4 Ra2 Ngh3 g1B Rg2 Bf2 Ng1 Bh4 Rh2 Bd8 Rf2 Bc7 Rd2 Re5 Bfc8 Rg5 Rg2 Bb5 Rf2 Ra4 Rh2 Re4 Rc2 Ba4 Rg2 Qd3 Rgd2 Qfe2 Bf2 Re6 Bh4 Qf5 Qg2 Qh3 Qg4 Qhf1+
1Bn1Nr2/NBp2bq1/Kr4Br/n1P2NQ1/N1b1R1R1/1r1NR3/1Nkqb3/8 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Be7 h4 fxg4 Ra6 g3 Ra5 g4 Ra1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 f4 Ke4 b4 h5 g6 a5 e6 a4 b6 d5+ Kb5 h4 c4 a3 g7 g2 f5 h3 f6 d4 b7 h2 e7 g3 e8B a2 f7 d3 f8N d2 Ne6 Qh4 Nd4 Bf5 Ngf3 g1Q Bg6 g2 Na3 Nh6 g8R Ra6 Ne5 Rc6 Nd3 Nd7 b8N Qh3 Na6 Rf6 Nac5+ Ke3 Na4 Rf8 Ka6 Nf7 b5 Qh7 b6 Qf2 b7 g1R b8N Qh6 Nbc6 Qg7 Na7 Rg5 Bg2 Nfe5 Re1 h1B Bb7 Be6 Qc2 Nc6 Nf5+ Ke4 e3 d1B Qd2 Rh7 Bb2 Bg2 Bd4 Bf1 Rb1 a1R Rb3 Rb1 Qc1 Kf3 e4 Nb6 e5 Rh6 Re4 Bf7 e6 Na5 e7 Nc8 e8N Bde2 Qd2 Rgh5 Qg5 Rh3 Rc3 Rb5 Bb6 Qe1 c5 Qd2 Nc4 Rg3 Ncb2 Rgh3 Nc1+ Kf2 Rce3 Ke1 Nc6 Rg3 Ba7 Rgh3 Bb8 Rf3 Nc4 Kd1 Ncb2+ Kc2 Na7 Bec4 Ncd3 Be2 Ba8 Rf1 Bb7 Rb1 Nd1 R1b3 N1b2 Rh1 Rh8 Rh3 Rhh4 Rh2 Rhf4 Rh6 Rg4 Rb6#
1B3qr1/Pb2pnB1/B5rN/3Q2nR/R1R1N1R1/3nKRr1/3R1q1b/1nN1k3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 d4 Kd6 a4 c5 f4 g5 h4 b5 h6 c4 h5 c3 a5 g4 a6 c2 h7 b3 f6 g3 h6 b2 f7 g2 a7 b4 f5 b3 f6 Qa5 Nd2 b1N Ra4 b2 Rh4 Bd7 Ke3 Bc6 Rg4 Qb4 Ba6 Qa5 Ne2 Bg7 f8B g1R f7 Be5 Bg7 Qd8 f8R Bh2 Rf3 Nd7 Rc4 Qf8 Ne4+ Kc7 d6+ Kb6 d5 Ka5 Qd4 Nc5 d7 Bb7 d8R Ne6 d6 Ng5 d7 Rg3 Rdc8 Rb8 d8R Ra8 Rb4 Rb8 Bd2 c1N Rcc4 Nd3 Nc1 Rc8 Qd7 Rc6 Bdc3 Rg6 Bce5 Nc3 Bb8 b1Q Qc6 Qa2 Rd6 Nb1 Rd8 Ne5 Rd2 Nd3 Qd6 Nf6 Qe6 Rg8 h8N Ne8 h7 Nd6 Nf7 Qb2 Nh6 Ndf7 h8R Qc2 Nc5 Qb2 Qd5 Qa2 Rcc2 Qb2 Rbf4 Qf6 Ne4+ Kb4 Nf5 Qb2 Rh5 Qf6 Nh6 Qb2 Rc8 Qf6 Nc5+ Kc3 Ra4 Nh8 Rf2 Qd4+ Ke2 Kc2 Ne4+ Qc5 Rg2 Nhf7 Rgf2 Qc3 Ke3+ Kd1 Rfa2 Ke1 Rcc4 Qc2 Rb2 Qg2 Rd2 Qf2+
1K1r1Bb1/1B4n1/b2R3r/1B2N1RB/Q3p3/1qkn3N/p2bBPNR/qr2B3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 d5 Kf4 h5 Ke5 a5 b4 h4 c4 e6 g4 h3 b6 h2 g6+ Kg7 c5 d3 c6 d4 b5 a4 g5 a3 c7 a2 b7 d2 b6 d3 Be2 Rh3 f6+ Kh8 f7 Kg7 Na3 Rh5 Nc4 Bd7 c8B Rh8 Ne3 Nf6 Qa4 d1Q Bd2 Ne8 Nh3 Bb4 Be1 Rh6 Ng2 d2 Bb5 Qf3 Rd1 Na6 b8R Nc5 b7 Qb3 Be2 Ra7 f8B+ Kh8 Bh5 Bb5 g7+ Kh7 Bd7 Ba6 g8B+ Kh8 g6 Qc8 Rc1 d1R Be2 Ba5 Bf7 Bb4 Rc4 Bd2 g7+ Kh7 Bfh5 Nd3+ Kd4 e5+ Kd5 Qc7 g8B+ Kh8 Bc6 Qg7 Rd8 Rb1 b8N Re7 Rd6 Rd7 Bb5 Qf6 Bgf7 Kh7 Be6 Ng7 B6g4 Kg8 Bgf3 Kh7 Bhg4 Kg6 Bh5+ Kf5 Kc6 Ra7 Rf1 Rb7 Rg4 Rd7 Ngf4 h1B Rfg1 Ne6 R4g2 Ng7 Rh2 Bg2 Kb6 Bh1 Bb7 Bd5 Ka7 e4 Nc6 Bg8 Kb8 Qa1 Nb4 Ke5 Rg3 Bd5 Rg5+ Kd4 Nc6+ Kc3 Ng2 Bg8 Ne5 Rd8+
k1BqN3/3rb1N1/1RNr2p1/n1RR2P1/NK4B1/nQN1n2q/1p4q1/1N1b2B1 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 g6 h4 Ra7 b4 axb4 h5 Ra8 h6 Qd6 Rh2 Qf6 Rh1 Qg7 hxg7 Ra4 Bb2 Ra5 Bc1 Ra8 g4 Kd8 a4 e5 d4 h5 g5 b5 Nd2 c5 f4 Kc7 d6+ Kb7 d7 b3 d8R b4 a5 c4 d5 c3 f6 e4 f7 b2 f5 b1N a6+ Ka7 d6 b3 f6 h4 d7 c2 Bh3 e3 Ra5 e2 Rc5 Ne7 g8B Bb7 Bg4 Kb6 a7 Bg7 f8N h3 B8e6 h2 Nh7 Bc6 f7 Kb7 f8N Ba4 Nf6 Rh7 Ne8 Na3 Bb2 c1Q Bd4 Qc4 Bef5 Be5 Ne6 Bd6 Be3 Rf7 N6g7 Nbc6 Bf2 Rc8 a8N Qe4 Nb6 Nd5 Qc2 Qg2 Qc4 Bb5 Na4 Na5 Qc3 Ra8 Rb8+ Ka7 d8N b2 Nb1 Ne3 Kd2 Bf8 Qc4 e1Q+ Kd3 Qef1+ Kc3 Qd1 Qb3 Be2 Kb4 Rc7 Bd7 Be7 Bc8 Bf3 Ne2 Qd7 Rf1 h1Q Bg1 Qhh3 Nec3 Bd1 Rf5 Rc6 Ba6 Rd6 Rb6 Rb8 Rfe5 Ka8 Red5 Rb7 Nc6 Rc7 Bc8 Qd8 Nd4 Ra7 Nc6 Rad7
5r1R/4bkNr/nn2p2P/2BBB2r/4qN1Q/1B2qp1B/4nK2/R1Rb2BN w - - 0 1 illegal: No proof kernel
1R4b1/1QN2R2/r1p2B1p/Bq4n1/nN1R1b1N/R2r1B2/1rqRR1PK/1n3k2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 d4 Kf6 f4 a5 Kf2 e5 d6 a4 d5 h6 b6 e4 b7 a3 b5 c6 b6 h3 Kg3 a2 d7 h2 d6 e3 Qb3 e2 Nf3 e1N Be2 Nc2 Re1 h1R Na3 Ra6 Nb5 Ra8 Nh4 Ra5 Bf3 Na6 b8R Nc5 b7 Na3 Bd2 Qb6 d8R Ra6 d7 Na4 Nc7 Nb1 Re2 Qb5 Ba5 Rd1 Kh2 Rd3 Rd2 Bd6 Re8 Ba3 d8R Bc5 Ree2 Be3 Rd4 Be6 Qb4 Ne7 Qb2 Nc8 Qb3 Nd6 Qb2 Kf7 f6 Ne4 f5 Ng5 Qb3 Rc3 Qb4 Rc2 Qb3 Rb2 Qb4 Rd8 Qe7+ Kg8 f7+ Kh7 f8B+ Bf7 Qb4 Bg8 f6 Rd5 f7 Rd7 Rg4 Rd3 Be7 Kg7 f8R Kh7 Nf5 Kg6 Bf6 Kh5 Nh4 Na3 Rf1 a1Q Rf7 Qa2 Ra1 Qac4 Qb3 Nb1 Ra3 Qc2 Ra8 Qd5 b8N Qf5 Qb7 Qb5 Bd5 Ba7 Rc4 Be3 Be4 Kg4 Rd4 Ra7 Nba6 Kf4 Kh1 Kg3 Nb4 Ra6 Bf3 Bg1 Rb8 Bf2 Rd1 Be3 Ree1 Kf2 Kh2 Rdb3 R1d3 Rc3 Re2+ Kf1 Rdd2 Rcb3 Re7 Rd3 Rf7 Bf4+
b3n2r/BB2np1p/1B4N1/BNR2P2/Rq3KB1/6QB/R2bN2r/bknq4 w - - 0 1 illegal: No possible last move
4B3/2BPq1N1/2pq1Q1r/3r2bR/pNnr3B/2NbN1n1/4Nq1R/k1K3NR w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 h5 Kd2 a5 f4 e5 g5 a4 g6 h3 b6 e4 g7 h4 f6 h2 b7 h3 b5 Be6 b6 Rh7 f7 Bg4 f5 Nd7 b8N Qe7 f6 Qd8 b7 Be2 Ra2 Bb5 Na6 Nb8 Nb4 Nc6 b8N Nce7 Nc3 Rh5 N8c6 Nc8 Qf3 Nge7 g8N Nb6 Nh6 Nf5 Ng4 Bh6+ Ne3 Bg5 f8N Qe7 f7 Ng3 Ne6 Bd3 f8R Rd8 Qf6 Nc4+ Kd1 Rh4 Rh8 Rf4 Rh5 Rd7 Ng4 e3 Bd2 e2+ Kc1 Re4 Bf4+ Re5 Ne3 e1Q+ Ned1 Qf2 Ne3 Rd8 Bg2 Rd7 Be4 Rd8 Bg6 Rd7 Be8 Rd8 Na5 c6 Nb3 Rd7 Nd2 Rd8 Nge2 Rd7 Nf3 Rd8 Re1 h1Q Nfg1 h2 Rd2 Qe4 Ng7+ Qe6 Rb2 h1R Ra2 Qg6 Rd2 Qf7 Rc2 Qe7 Rf1 Kc7 d6+ Kb6 d5 Kc5 d7 Q6d6 Rd2 Re4 Ra2 Rd4 Rd1 Ra8 d8B Ra5 Re1 Qde6 Bfc7 Q6d6 Rh7 Rh6 Rc2 Qde6 d6 Qd5 d7 Qdd6 Ra2 Qh2 Nbd5 Bh4 Nef4 Rh5 Qe5 Qee6 Nf3 Qg2 Bf6 Qee7 Rh1 Rb5 Ng1 Qh2 Nb6+ Kb4 Nbd5+ Kb3 Nb4 Rbd5 Bg5 Qg2 Qf6 Qf3 Rah2 Qf2 Nfe2 Ka3 Kd1 Kb2 Rh8 Ka1 Kc1 Rh6 Rh7 Rg6 Rh5 Rh6 Bf4 Ne4 Bg3 Bg5 Bh4 Ng3
1B2rn2/1pRN1P1B/1qr3qn/QpRNn2R/3kB3/N5RR/4Kb1R/1b3b2 w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 a6 h4 Nf6 hxg5 Ng8 b4 Nd7 b5 axb5 Rh5 Nb8 Rh2 Qd6 Rh1 Qd8 d4 Kd7 f4 Kd6 a4 e5 g4 h5 g6 c5 g5 c4 g7 h4 a5 h3 g6 c3 f6 e4 a6 c2 a7 e3 f7 e2 f5 h2 f6 Nd7 Bg2 Rh5 Ra3 Rh7 Nh3 Qe8 Bf4+ Qe5 Be4 c1N Qd2 Rh6 Qa5 Be7 f8N Nb6 f7 Nf6 g8B Nfd7 g7 Na4 Bgh7 Nb2 g8R Nb3 Rg3 Rb8 a8R Nc4 Ra2 Bd8 Na3 Bh4 Kf2 e1Q+ Kf3 Ndc5 Nd7 Qb1 Ke2 Ne6 Rc1 h1B Ra7 Ne3 Rc7 Nf5 Rac2 Nd2 R2c5 Nf8 Ra8 Ke7 d6+ Ke6 Ra6 Qf6 Rac6 Ne7 Rh5 Nf5 Rc5 Nc4 Nb6 Bg5 Bc6 Ng7 d7 Qe4+ Kf2 Qd3 d8R Ng6 d5+ Kf5 d6+ Bd5 d7 Ke4 Rg2 Nf5 Rg8 Nf8 d8R Bh4+ Bg3 Rg6 Rcd7 Nh6+ Nf4 Qe6 Re8 Kd4 Rh2 Rf6 Rgg5 Qg6 Rh3 Qd6 Re2 Bf3 Rde7 Bf5 Ke1 Rc8 Reh2 Bg2 Ke2 Bb1 Be4 Re8 Nfd5 Qc6 Bb8 Ne5 Rd7 Bf2 Rc7 Qe6 Nd7 Qb6 Rg4 Rc6 Rgg3 Bf1+
1n1b2q1/pN2NNRB/2PbB3/1kB2R2/p3K3/b2rb1Q1/2b1R2B/3B1nBr w - - 0 1 illegal: No proof kernel
n2Qb3/kNrR1B2/2PN1R2/n1bpbRBr/6qr/3RRp2/B7/R2Kb1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e4 g5 h4 f5 c4 a5 b4 a4 h6 g4 b6 d6 e6 a3 b5 a2 e5 d3 b7 g3 b6 g2 e7 Kd7 e8R Kc6 h7 f4 h5 f3 c5 Qe7 h6 Qg7 e6 Na6 b8N+ Kb7 e7 Qg5 Na3 Bg4 Rh5 Nc7 Na6 Rb8 c6+ Ka8 b7+ Ka7 Nc4 Nf6 Nc5 Rc8 b8R Nfd5 Rb3 Na8 Nb7 Ndb6 Rd8 Be6 e8B Bf7 Rd7 Qg4 Rf5 Rc7 Bg5 Bg7 Qd2 Be5 Kd1 d5 Ncd6 Bh5 Bf7 Nc4 Qf4 d2 Rd3 Bc3 Qg3 Na5 Qh4 Be5 Rf6 Bg3 Rf5 Be1 Rf6 Re8 h8R Re4 h7 Re5 Rf8 Rf5 Nh3 g1B h8R Bc5 Ng1 Re5 Re8 Re4 Rhf8 Bg6 Kc2 d1R Rf5 Rd4 Ree3 Rd2+ Kc1 Rh2 Kd1 Rh1 Qh8 Rh5 Qf6 Rc4 Qd8 Rb4 Be6 Rd4 R8f6 Be8 Bf7 Rf4 Rb3 Re4 Bc4 Rd4+ Rbd3 Re4 Rb1 a1B Ba2 Be5 Rc1 Qg3 Rb1 Reh4 Ra1 Qg4
8/kB1Nbnbp/2Qr1bRB/r2B3r/4nK1B/B2P2Nb/N1R1p1B1/qR6 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 c5 g4 Kc7 f4 Kb7 b4 e5 f5 a5 g6 a4 b6 c4 f6 a3 g7 a2 b5 c3 d6 c2 f7 Bf5 d7 Qc8 d8B Bd7 d3 Bc6 g5 Be7 f8B Nf6 g8B Qd7 g6 Bb4 g7 Qc7 Bd5 Nbd7 g8B Ra5 Rh6 Be7 Ba3 c1R Ne2 Rc5 Rg6 Kb8 b7 Ka7 b8N Qb6 Qd2 Qa6 Ng3 Bb7 Bc1 Bc8 Bb7 Rd5 Bh3 Rd6 Bf7 Rg8 Nc3 Rg7 Rb1 a1B Ba3 Bb2 Rg4 Rg5 Bfd5 Rh5 Rg6 Ba1 Qc1 Bb2 Ke2 e3 Kf3 e4+ Kf4 e2 Bh6 e1B Bg2 e3 Na2 e2 Qc6 Ne5 Nd7 Bec3 Rc1 Ne4 Rc2 Bf8 Bh4 Be7 Nf6 Bh3 b6+ Kb8 Bc8 Ba1 b7 Nf7 Nd7+ Ka7 b8R Bg7 Rb1 Baf6 Bb7 Qc4 Bc8 Qc3 Bb7 Qa1
BrN1b1r1/NQ1nbp2/2K2b2/1b2qB1n/5N2/1P3RB1/kpR2r2/2B1RBB1 w - - 0 1 illegal: No proof kernel
3nk2b/1rp1bRnp/R5N1/1NqRr1P1/1Q1rN1Br/Bb6/N3N3/3K2BN w - - 0 1 illegal: No possible last move
b2N1q2/Bq1N1r2/1BNb1r1p/1QR1nr1b/1B3R1P/3B4/3p3R/kb1BB1K1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d3 Nc6 d4 Nce7 fxe5 cxd4 Ra3 f4 Ra1 Nf5 gxf5 Kf7 Kd2 Ke7 Ke1 Ke8 Kf2 Ke7 b4 a5 e4 g5 c4 d5 h4 g4 c5 h6 e6 Kf6 b6 Ke5 e7 d3 e8N Kd4 f6 f3 c6 d2 c7 a4 b5 a3 f7 a2 b7 Ra6 b8B Qf6 e5 Qf5 b6 Bg7 f8B Bb7 c8R Ra7 e6 Ba8 e7 Bf6 b7 Be5 Nc3 Nf6 Qb3 d1B Rh2 Bd6 Bc7 Nd7 b8B Ne5 Nh3 g3+ Kg1 g2 Nf4 Rb7 Rb1 a1R Nf6 Ra6 e8B Rc6 Ba5 Rf7 Bb6+ Rc5 Be7 Rhf8 Ba4 Bc2 Ra1 Bb1 Bd3 Qd7 Ba3 Qb7 Nd7 Rf6 Na2 R8f7 Bbd8 Ra5 Nb4 Rb5 Bb6+ Rc5 Qa2 Kc3 Nc6 d4 Qd5 Rb5 Bb4+ Kb2 Ne6 Rc5 Bc4 d3 Be1 d2 Ned8 Ra5 Ra3 Rb5 Rc3 Ka1 Bd3 Ra5 Bd1 Rc5 Rc4 Rb5 Rh3 f2+ Kh2 f1B Kg1 Rc5 B8a7 Be2 Rf4 Bh5 Rh2 Nc4 Qe6 Rcf5 Qd5 Ne5 Qb5 Bc7 Bb4 Bb8 Kf2 Bd6 Kg3 g1Q+ Kh3 Qe3+ Kg2 Qf3+ Kg1 Qe2 Ncb8 Qee4 Rc5 Qf3 Nbc6 Qc8 Ncb8 Qfb7 Nbc6 Qcb8 Ne6 Qe8 Ned8 Qf8
kr1Q1B2/1RB1bn2/6B1/r2b3q/pB3p1n/3NpR2/P1BNB1r1/RK2N2b w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 b4 Qc7 bxc5 Qd8 e4 e5 fxe5 dxe4 h4 Kd7 d4 Kc7 Kd2 b5 c4 Kb7 Kc2 f5 d5 g5 e6 a5 e7 f4 e8B a4 h6 g4 c6+ Ka7 h7 b4 d6 e3 c5 g3 c7 g2 c6 Bh6 d7 Nf6 h5 Na6 Nf3 g1R Nbd2 b3+ Kb1 b2 Bg6 Nd5 Be2 Qf6 d8B Bf8 h6 Rg5 Rh3 Bd7 c8R Qd6 c7 Qe6 Ne1 Bc6 Rf3 Qe8 Rb8 Nab4 c8B Ne7 Bc7 Nd3 Bcf5 Ne5 Bc2 Bd5 Rb3 Rg8 h8B Nf5 h7 Be7 Bg7 Rb8 h8N Ka8 Bf8 Nh4 Nf7 Rg2 Rb6 Rh8 Rb7 Rh5 Nd6 Nf7 N6c4 Rf5 Ne5 Rfg5 Bg7 Qh8 Bf8 Qh5 N5d3 Be6 Nb3 Ra5 Bd2 Bc4 Bb4 Bd5 Nd2 Rg1 Bb3 Rg2 Kc2 b1B+ Kb2 Rf2 Bc2 Rg2 Ne5 Qh7 Nf1 Qh8 Bb3 Rf2 Rg3 Be6 Qd8 Rh2 Nd2 Be4 Bc2 Bh1 Kb1 Qh5 Rf3 Bd5 N5d3 Rg2
1N1kB1RK/5b1p/2Bp3P/1b1n1n1Q/R3rN1n/2p2N2/1B2R3/rNN1rq1N w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 Bb7 axb5 Ba6 f4 gxf4 b6 Qc8 c3 Qd8 b5 Bb4 cxb4 Bc8 Kd2 a5 Kc3 f5 Kd4 c6 e4 f3 h4 f2 g4 f4 b7 a4 g5 a3 g6 a2 g7 f3 b6 Ra5 h5 Ne7 g8R+ Kf7 e6+ Kf6 h6 Rb5 e5+ Kf5 Bb2 Ng6 e7 Ke6 e8N Ke7 e6 Nh4 Bg2 f1R Rh2 c5+ Ke5 f2 Bc6 Ra5 b5 c4 Nf3 c3 Nd6 Na6 b8N Nc7 b7 Ne8 Ne4 Ra7 b6 Ra6 Ng3 Rg1 Nh1 f1B Re2 Ra7 Na6 Nc7 b8N Ra8 b7 Nd5 Nc5 Qf8 Nba6 Kd8 b8N Ra7 Nd3 d6+ Ke4 Bd7 Nc7 Be8 Nc1 Bf7 e7+ Kc8 e8B Kd8 Rf2 Bb5 Re2 Re1 Ne6+ Ke7 Nf4 Kd8 Rg7 Rg8 Rg3 Rg4 Rg1 Ng2 Kf5 Ra4 Nh5 Rge4 Nf4 Nh4+ Kg5 Qh8 Rgg2 Qd4 Rg3 Qg1 Rg4 Qf1 Rg3 Ne3 Kf6 Ra7 Kg7 Nef5+ Kh8 Ra8 Na3 Ra5 Rg8 Ra7 Rb1 a1N Qd5 Nc2 Ra1 Ra8 Nb1 Nce3 Qe5 Nd5 Ra4 Nfe3 Qh5 Nef5 Rb4 Ra2 Ra4 Ra1
1B1k2N1/nnr5/2r1bR1q/1p1P2B1/p1q1NnN1/1Q5B/3NRNp1/2K2RbN w - - 0 1 illegal: No possible last move, all moves rejected
r2RbNK1/R1np1R2/B3Q3/q5r1/p1r2b1N/1R1P1Rp1/5n1N/1Bk1BRq1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 f5 exf5 Nf6 axb5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 h4+ Kh6 f4 g5 c4 e6 f6 g3 h5 g4 b6 g2 f7 g3 b7 Qh4 f5 Kg5 f6 Bh6 f8N Rh7 c6 Ne7 f7 Qg4 c5 Nf5 c7 Ra7 c6 Rh8 Qe2 Qb4 Nf3+ Kg4 Kf6 Kf4 Nh2 Na6 b8R Qc5 Rb3 Bb7 c8B g1R c7 e5 Bh3 Rg2 Rf1+ Bf3 d3+ Qe3 Nd2 Nd6 Be6 e4 Ba3 Qc5 Bb4 e3 Bd5 Bg5+ Kg7 Ne4 h6 Ra8 h7 Nf2 Ra2 Bg4 Ndf3 Bh5 Nh4 a4 Be1 Qa7 Bcb7 Bg6 c8R Nc7 Rd8 Qa5 Ba6 Bh5 Ra1 Rg1 Qa2 e2 Rc1 Ke3 Rc6 Rb8 Rf6 Rb5 Ra8 Rc5 Ra7 Rc4 Rf4 Rh1 Rf5 Kd4 Rf3 Bf4 Qa3 Bg6 Qd6 Bh5 Qe6 Rg8+ Kf6 Rg5 h8R Bg6 Ng4 Rh2 Kg7 Rh1 Kg8 Rh3 Bd2 e1Q Nh2 Qd1 Be1 Qb1 Nh7 Qa1 f8R Be8+ Ng6 Rh4 Rf7 Rhg4 Nf8 Qc1 Kh7 Qe3 Nh4 Rg8 Rc3 R4g5 Rb3 Qe4+ Nfg6 Rc5 Bb4 Qe1 Rb2 Rf8 Ba2 Rc4 Rb3 Qc1 Re7 Bf7 Rh1 Ng4 Bb1 Ra8 Rd8 Nf2 Nf8 Be8 Rf7 Qf1 Be1 Qg2 Rf1 Qh1 Rb2 Qg1 Rd2 Kc3 Ra2+ Bd2 Ra3+ Kb2 Rb3+ Kc1 Kh8 Bf4 Kh7 Rb5 Kg8 Rg5+
kn1NBB2/1n1Rn2r/3B3b/1RRNpp1B/2r4b/2QN1P1n/2K1p2B/qB6 w - - 0 1 legal: proof: b4 g5 e4 d5 a4 dxe4 h4 b5 axb5 Nd7 hxg5 Nc5 c4 Nh6 b6 Na4 b5 Ng8 c5 Bb7 c6 Nc5 cxb7 Na6 Ra2 Nb8 Ra6 Qd5 Ra1 Qd8 g4 Kd7 d4 h5 Kd2 c5 d5 f5 g6 a5 g7 h4 f3 h3 d6 c4 g5 a4 g6 h2 Ne2 e3+ Kc2 a3 Qd3 c3 Nf4 a2 Ba3 Nc6 b8B Kc8 b7+ Kd7 b6 Nf6 g8B e6 g7 Nd5 Bf7 Qf6 g8B Rh7 Bh5 Nde7 Bgf7 Ra4 Be8+ Kd8 d7 Rc4 Bbd6 Nb8 Qd2 Bh6 Bd3 e2 Rd1 h1N Be4 Bg5 Nd3 Nf2 Qe3 Nh3 Bac5 Na6 b8B Bh4 b7 Qd4 Bh2 e5 Bbd6 Nb8 Ba3 Nd5 Bf8 Kc7 d8N Ne7 Bd6+ Kb6 Qd2 Ka7 Qc1 Na6 b8R Qg1 Rb3 Nb8 Rb5 Qh1 Kb3 c2 Nc3 Qg1 Nd5 Ka8 Qd2 c1B Qc3 Bh6 Rac1 a1N+ Kb2 Nb3 Kc2 Qf1 Nb2 Nbc6 Kb1 B6g5 Nb4 Na5 Bc5 Rd4 Qe3 Rc4 Rd7 Rh6 Bd6 Rh7 Nd5 Nb7 Qd4 Be3 Bc2 Bf4 Nd3 Ra4 Qa1 Qg1 Kb2 Qa7 Bb1 Bh6 Rcc5 Nb8 Kc2 Rc4+ Qc3 Qa1
5Bbb/n1rq1RNr/n2pKN2/5RpQ/4B1bp/1Nb1R3/1R1RP1R1/1B5k w - - 0 1 illegal: No proof kernel
KN2b1b1/p3N2R/3p3R/Q2R4/RN3R2/B2PnBbp/r3nR1b/Bbq3k1 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 hxg5 Qf6 b4 Qd4 c4 Qf6 b6 Qc6 b5 Qf6 c5 Qd8 c6 Na6 Rh6 Rb8 Rh1 Rb7 cxb7 Nb8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 h5 g6 c6 g7 f3 d3 f2 g5 h4 g6 f6 Nf3 Rh6 Ra4 Ne7 g8R Rh7 g7 Nf5 Nd4 Ne3 Qd2 Bd6 Rf8 Bh2 g8R Qc7 Bg2 f1B Bf3 Bh3 Rg7 Be6 Na3 Ba2 Nf5 Bb1 Qa5 h3 Rf1 Rh6 Rh7 Rg6 Rfh8 Rg2 Ne7 Rf2 Nc2 d6 Nb4 Be6 Ba3 Rg2 Rf2 Bg8 Rh6 Nd7 b8B Ne5 b7 Ng6 R8h7 Nf4 Bg4 Qc8 Bc7 Bg3 b8R f5+ Kf3 Kd4 b6 c5 b7 c4 Bb6+ Qc5 Rf8 c3 b8N c2 Bd8 c1B Rff6 Nc4 e4 Ne2 e5 f4 e6 Ne3 Rf8 Bd2 Rf5 Qc1 Rd5+ Kc3 Ke4 f3 Bb6 Be1 Bd4+ Kd2 Ba1 Bh2 Nec6 Kd1 e7 Kd2 e8R Kd1 Rf1 f2 Bf3 Kd2 Rf8 Kd1 Rg1 f1B Rf4 Beg3 Ne7 Ke1 Rh1 Kf2 Rg1 Nd4 Rh1 Be2 Rd1 Nb5 Rd2 Kg1 Ra2 Bd1 Rf2 Nc3+ Kd4 Nc2+ Kc4 Ne2 Kb5 Ne3 Ka6 Bb3 Kb7 B3a2 Rdd4 Baf7 Rd5 Be8 Ka8 Nd4 Rc2 Re2 Rcc5 Rb2 Rc2 Ra2 Rf2 Ne2
1B6/P2B1Q1p/k2pp2B/pn4RK/3bnB2/R1N1q1B1/q1rN1r2/4NbBR w - - 0 1 illegal: No proof kernel
RBN2K2/n7/R3pB1r/1Bp1p1RN/Rp2P1b1/rn3R2/2Qq2k1/1r1N1q1R w - - 0 1 illegal: No proof kernel
rN1k1N2/1K1n3N/nr3q2/p2Bb3/rp3BN1/1qR2R2/P1pB2pQ/4RNN1 w - - 0 1 legal: proof: e4 f5 exf5 a5 g4 h5 c4 hxg4 b4 d5 cxd5 b6 b5 Ba6 bxa6 Rh6 Nf3 Rh4 Ng1 Rh8 Ke2 c5 Ke3 g5 Ke4 e5 f4 g3 d4 c4 h4 c3 d6 c2 Kd5 g2 d7+ Ke7 h5 e4 a7 g4 h6 b5 f6+ Kf7 f5 g3 h7 b4 Bf4 e3 Qd2 e2 Rh3 e1R Bc4 Qe8 d8B Nd7 Kc6+ Re6+ Kb7 Bd6 d5 Rc8 a8R Kf8 f7 Bc7 d6 Ndf6 d7 Ng4 Bdg5 N4h6 d8N Be5 Nc6 Ng4 Nb8 Ne7 Bd5 Qa4 Ra7 Rg8 h8N Nf6 Qe2 Rcc6 Nd2 Rc3 Re1 Nc6 Nf1 Ke7 f8N Qb3 Nh7 Kd8 Ng6 Rf8 Bh6 Nd7 f6 Rg8 f7 Rge8 Nf3 g1Q f8N Qd4 Qh2 g2 Ng1 Qf2 Bd2 Qf6 Rf3 Rd3 Bhf4 Re3 Ne7 Rd6 Ng8 Rde6 Na6 Ncb8 Nh6 Rd3 Ng4 Rb6+ Ka8 Qb2 Rc7 Ra3 Rcc3 Ra4 Ka7 Qb3 Ka8 Nc5 Ka7 Nbd7 Nb8 Na6 Ka8 Ke7 Ka7 Rd6 Kb7 Rd8 Nc6+ Ke8 Qh6 Ra8 Nb8 Kd8 Qh2 Rb6+
1Brn1b1Q/2r3B1/1RN2BNr/K4r2/BB1Pp1BQ/3b4/3p4/1bRB1k2 w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 a5 bxa5 g5 h4 gxh4 a4 Nc6 axb5 Nb8 c3 Bb7 Bc4 Ba6 Bf1 Bc8 Be2 c5 Ra4 d5 Re4 d4 Bf1 d3 Ra4 c4 Ra1 Nc6 Na3 Nd4 Nb1 Qc7 cxd4 c3 Qg4 c2 Qd1 Qc3 dxc3 Ba6 Rh2 Bb7 Rh1 Bc8 Kd2 Kf7 f4 Kf6 g4 h5 b6 e5 c4 e4 Kc3 h3 a6 h2 c5 h4 Kb4 h3 b7 Ra7 b8B Rd7 g5+ Ke7 a7 Rc7 a8B Ba6 f6+ Ke6 f7 Kf5 g6 Rh5 g7 Ra7 Na3 Nh6 g8Q Rh4 Ka5 Bg7 f8B Rb7 c6 Rb2 c7 Rb1 c8B+ Kg6 f5+ Kf6 Qh5 Rb7 Bb4 Bf8 Rb1 Rf4 Nc4 Rc7 Bc6 Nf7 Ne5 Nd8 Ba4 d2 Ne2 Rf3 Nf4 Bd3 Bca3 c1R Nc6 Rc2 Rg1 h1R Be2 h2 Rgc1 Rc4 Rb3 Bb1 Ng6 Rc2 Qhh7 Kg5 Bd1 Kg4 f6+ Kg3 f7 Kg2 Bg4 Kf1 Qh4 Rcc3 Qgh8 Rf5+ Nce5 Rc8 Be7 R3c7 Rb6 Rg1 Bab4 h1B Bf6 Bf3 Qg5 Be2 Qgh4 Bb5 Nc6 Rh1 Rc3 Bd6 f8B B5d3+ Rc5 Rh2 Bh6 Bf8 Bhg7 Rff2 Rc1 Rh1 Qg3 Rh6 Qh4 Rf5+
3B3N/3q1n2/1P5N/2RQrQ2/rBB1B1q1/B1BK3k/2n2B2/bn1qRb1b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 b4 c5 f4 h5 d4 e5 g4 a5 f6 a4 d6 Ke6 d5+ Kd7 g6 h4 b6 c4 b7 h3 g7 e4 f5 c3 b5 h2 b6 a3 g5 e3 f7 c2 f6 a2 g6 Rh6 Nh3 Ra4 Ng5 Ra5 Kd3 e2 Nd2 Rh4 Nde4 Qe7 Ba3 c1Q Bg2 Qe5 Ng3 Ra8 Nf5 Re4 Nh6 Rf4 Be4 Ra5 Re1 Qc6 Rc1 h1B Rc5 Na6 b8B a1N Bb4 Be7 f8B Nc7 Ngf7 Qh5 Nh8 Nb5 f7 Bf6 Be7 Rf5 f8Q Nc2 Bc7 Ba1 Ba3 Re5 Qf5+ Re6 Bh4 Qg5 Bf2 Ra4 Bd8 Qg1 Bf6 Nc3 Be5 Nb1 Bc3 Qg4 Bcb4 Nf6 g8B Nh7 g7 Ng5 Bf7 Bb7 g8Q Bg2 Qa8 Bf1 Bg8 Nf7 Qa5 Ke8 d7+ Ke7 d8B+ Kd6 Qb5 Qd7 Bf6 Bc6 Bfc3 Re5 Qf4 Ke7 d6+ Ke6 Qf3 Bb7 Qh3 Kf6 Qc6 Kg5 Qd5 Qc7 d7 Kf4 d8B Qcd7 Qh5 Bc6 Be3+ Kg3 Qf5 Kh3 Qd6 Ng5 Bc4 Nf7 Bf2 Bb5 Bb7 Bc6 Qd4 Bcg2 Be4 Bh1 Qd5 exd1Q#
1K5R/2bkp1R1/1n3n2/4Br2/r1Q1B2P/Qnp1BbB1/3q1N1b/1BBB3N w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 fxg5 Bg7 g6 Bh6 g5 Bf8 Qg4 hxg4 Ke2 a5 Kd3 c5 Kc4 a4 b4 a3 d4 g3 f6 g2 d6 a2 Kd5 c4 g7 c3 b6 Ba6 b7 Qa5+ b5 Nd7 Kc6 Rh3 b8B Nb6 Kc7 Nc4+ b6 Qa4 d7+ Kf7 d8B Ke8 d5 Rh6 b7 Ne5 d6 Rg6 d7+ Kf7 Be2 Ke6 f7 Bd3 Nh3 g1N Nf2 Qf4 Bd1 Be2 Nd2 Qf5 Nf1 Nh6 g8B Bf3 Ng3 Qe4 Bh7 Rg8 g6 Qe3 g7 Nhg4 Bb1 Ne2 h4 Qf4 Rg1 Qd2 Ngh1 Nd4 Rg2 Rh8 g8B Bg7 Bgh7 Nb3 f8Q Ra4 Bhe4 Rh5 Qf4 Nf6 Rg3 Bh6 Rg7 Rf5 Ba7 Nc4 b8B Bg5 Be3 Nb6 Kb7 Bh6 Bdc7 Bg5 Qg4 Bf4 d8Q Bh2 Qf8 Kd7 Bg3 Qe2 Bbe5 Qe1 Bd3 Qd2 Rb1 a1B Qa8 Bb2 Kb8 Ba3 Rb2 Na5 Bb1 Nb3 Ra2 Bc5 Qa5 Rd4 Qa3 Ra4 Rb2 Na1 Rb4 Nb3 Rc4 Bb4 Rc8 Ba5 Re8 Na8 Rh8 Bd8 Qf4 Nb6 Qg4 Bg2 Qe2 Bf3 Qc4 Bc7+
R6R/3BPnp1/1Qnq2b1/B1B1pNn1/5Nk1/BK5r/B2q1q1r/B4QB1 w - - 0 1 legal: proof: b4 b5 g4 e5 a4 h5 gxh5 e4 axb5 e3 c3 Nh6 b6 Qf6 dxe3 Qh4 e4 Ng8 e5 Qd8 e4 Ke7 e6 f6 e5 Qe8 b5 Qd8 Qd5 Ke8 Qd4 Bb4 e7 Kf7 cxb4 Ke6 Qe3 Kd5 e6 Kd6 Qe5+ fxe5 Kd1 a5 Kc2 c5 e8B c4 h4 c3 f4 a4 h6 a3 h5 a2 h7 Qc7 f5 Kd5 h6 Ke4 f6 Kf5 f7 d5 f8B d4 b7 d3+ Kb3 c2 b6 d2 b5 d1N Nc3 Qc5 Nf3 Nc6 b8B Nb2 b7 Nge7 b6 Qd6 Ba7 Qd5+ Bc4 Nd1 b8B Kg4 b7 Bd7 Nd4 Rg8 h8Q Qf3 h7 Ng6 Bac5 Qf6 Bb2 c1Q Nf5 Qfg5 Ne2 Nf4 Bc7 Qd8 b8B Qd2 Ba5 Nc3 Bba7 Ng6 Nf4 Ne4 Bfd6 Qh4 e7 Qhf2 Bbd4 Be6 Bd7 Bf7 Ba3 Ng5 B6c5 Rgd8 Qf8 Nh8 Bdc3 Bg6 Bd5 Nhf7 h8Q Rdc8 Qh6 Qfe1 Bg1 Qef2 B7c5 Ra7 Ba5b4 Ra4 Ba5 Rd4 B5e6 Rd3 Rh5 Rh3 Bc4 Bh7 Qd6 Bg6 Rh8 Na7 Qa6 Nc6 Qd8 Qd6 Qdb6 Qdd2 Bce6 Rb8 Qf1 Rh2 Re1 a1Q Bd5 Qac1 Ba1 Ra8 Bc4 Qd6 Re2 Rd8 Ra2 Qcd2 Bd3 Kf3 Bc1 Ne4 Bab4 Nh6 Bb1 Qb8 Ra8 Nf7 Be8 Kg4 Bca3 Neg5 Ba2 Rd3+ Bbc3 Rdh3 Bd7 Kf3 Bc3b4 Qbd6 Ba5 Kg4+
Kb2b3/B4k1b/1NR2Bq1/N3QQnN/NqrP1pN1/N2R4/1r2p1b1/5N2 w - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 d5 exd5 c6 a4 Nd7 axb5 Nb8 b6 Qc7 Nh3 Qd7 Ng1 Qd8 f4 e5 b4 e4 b7 Ne7 b5 Ng8 b6 Nd7 Bb5 Ne5 fxe5 cxb5 Kf2 a5 Ke3 h5 Kd4 f5 b8N a4 c4 f4 g4 e3 e6 b4 e7 h4 Kc5 e2 Kc6 b3 c5 h3 g6 b2 d6 h2 g5 a3 g7 a2 g6 Nf6 g8N Ra7 b7 Ng4 g7 Ra8 d7+ Kf7 Nf6 Ne3 g8N Rh5 e8Q+ Kg7 Nf3 Nf5 Na3 b1B Ng4 Qg5 d8N Ra5 Qe5+ Kg6 Bb2 Nh6 Qc2+ Bf5 Na6 Rh3 b8B Bd6 Kb7 Be7 c6 Bf8 c7 Rc5 c8N Rh5 Nc6 Rh3 Na5 Rc4 Nb6 Kf7 N8f6 Qg6 Nc5 Bd6 Nca4 Bd7 Ba7 Be8 Rd1 h1B Ka8 Bb8 Qcf5 Bg2 d3 Bc2 Rac1 a1Q Rd2 Qb1 Nh5+ Kg8 Rdd1 Nf7 Ba1 Qb4 Rd2 Bf1 Nfh2 Ng5 Bc3 Rf3 Bd4 Bg2 Nf1 Bb1 Rdd1 Rc2 Rd2 Rb2 Rc6 Bc2 Qee4 Bb1 Bf6 Kf7 d4 Rc3 Qee5 Rc4 Rd1 Bbe4 Rd3 Qg7 Qc8 Bh7 Qcf5 Qg6
k1N3N1/B3Rp1n/B2r1r2/2PN1b2/1Q1NN3/p2NQ3/1pn1qb1K/n2R2N1 w - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 g4 Nc6 gxh5 Nb8 d4 cxd4 b3 b5 Kf2 a5 Ke1 Qb6 Bb2 b4 Bc1 Qb5 axb5 a4 Nd2 a3 Nb1 Ra4 bxa4 Kd8 Nh3 Ke7 Ng1 Ke8 Kf2 Kd8 Kg3 Kc7 c4 Kb7 h4 g5 e4 d5 b6 g4 e6 d3 e5 b3 a5 b2 e7 d2 e8N d4 e6 d3 e7 Rh6 a6+ Ka8 b7+ Ka7 Kh2 Bd7 Nf6 Bg7 e8Q Bh8 Nd5 Rf6 h6 Nc6 b8N Nce7 h5 Bc8 h7 Nh6 Qda4 d1Q Nd2 Neg8 Qe3+ Ka8 a7 Bg7 h8N Rf5 Ne4 d2 Qb4 Qb3 Ng6 d1N Ngf4 Bd7 Nd3 Rf6 Nc6 Nf5 h6 Nd4 h7 Bf5 h8N Nc2 Nd4 Qa4 c5 Qe8 Ng6 Qe7 Rb1 Na1 Bd2 Qe8 Nge7 Rd6 Bc1 Nf6 Ng8 Nh7 Bd2 Qe7 Be1 Bf6 Bg3 Bh4 Bf4 Rf6 Bb8 Bf2 Rc1 Qe8 Rc2 Qb5 Re2 g3+ Kg2 Kb7 a8N Rd6 Nab6 Qc4 Nc8+ Ka8 Kf3 g2 Ba7 Qc2 Re1 Qe2+ Kf4 Nc3 Rd1 Nb5 Rh6 Bg4 Re6 Bf5 Nc6 Nd4 Re7 Ndc2 Nd4 Qd2 Nc1 Qe1 Ba6 Qe2 Nd3 Qe1 Nge2 g1R Kf3 Rgg6 Ng1 Rgf6 Kg2 Qd2 Kh2 Qe2
1q1QBb2/k7/qNP2Q1R/2p1B3/p2RN1b1/1N2Nr1N/p1Nqn2N/K4r2 w - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 d5 gxh5 f5 cxd5 Be6 exf5 Nc6 a4 bxa4 b5 Bd7 bxc6 Bc8 d4 a5 Kd2 g5 Kc3 e5 Kb2 e4 h4 e3 f4 g4 d6 e2 f6 e1Q h6 g3 d5 g2 f5 Qde7 d7+ Kd8 f7 Kc7 d8Q+ Kb8 f6 Ra7 h5 Bg7 f8N Ra8 h7 Q7e5+ Qd4 Bh6 f7 Q5e3 d6 Qf3 d7 Ne7 Bc4 Qfe4 Nh3 g1Q Bf4+ Ka7 Nd2 Bg5 h6 Qf3 Ng6 Qe6 f8N Qgf1 Qf6 Nf5 Ne7 Qg4 Be5 Qfd1 Nd5 Qdf3 Ne3 Nh4 Rad1 a3+ Ka1 a4 Nb3 a2 Rd4 Qe8 Bf7 Qe7 Be8 Rg8 h8N Ng2 h7 Qf2 Nhg6 Qd6 h8N Qfe2 Nf7 Qf4 Nh4 Qb8 Nf3 Bh6 Nd6 Rg3 Nh2 Rf3 Ne4 Qeb5 Ng6 Qg5 Ne7 Qa6 N7d5 Nf4 Nb6 Qg2 Rg1 Qc2 Rg6 Bf8 Rh6 Qd2 Qde7 Qc7 d8N Bg4 Ne6 Ne2 Qd8 Qd6 Rd5 Rc8 Ned4 Qb8 Ndc2 Rc7 Rd4 Rf7 Qf4 Rf2 Qfg5 R7f3 Qgf6 Rf1+
N2b4/NB3k1r/1q4nb/BQ4r1/q3bBB1/1K1nb1BB/Q1R1Pn2/2RB3q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 f5 Kc3 g5 b4 d5 h4 a5 b6 f4 e6 g3 b7 g2 e7 f3 b5 g4 c6 d4+ Kb3 d3 c4 g3 c7 d2 c5 f2 b6 Nc6 b8Q Ra6 b7 Bh6 h5 Bd7 c8B Bf4 h6 Kf7 e8B+ Ke6 h7 Nge7 Qc2 d1N Nh3 g1Q Na3 g2 Ra2 Qc7 Nb5 Nb4 c6 Nd3 Na7 Bh6 Bf4 Ng6 Ng5+ Kf6 Rb2 Bf5 Ne6 Be4 Bed7 Rg8 h8B+ Kf7 Bc3 Qb6+ Bb4 Rg7 c7 Rh7 Ba4 Qd4 Qb1 Rb6 Qa2 Rb5 Bd7 Rg5 c8B Qb6 Nc7 Qd4 Rh5 Qh1 Bdc6 g1B Bfh3 f1Q Na8 Be3 Rc2 Qfg1 Bcg4 N1f2 Qe5 Qb6 b8B Qd1 Bb7 Qa1 Bad7 Qad4 Qb5 a4+ Ka3+ Kf6 Ba5 Ke7 Bg3 Kf6 Bbf4 Ke7 Qab1 Kf7 Ka2 a3 Kb3 a2 Qb2 a1B Qa2 Rc5 Re5 Bc3 Re8 Bb4 Rc8 Rg5 Rc1 Be7 R8c2 Nb4 Qa6 Bd8 Ba4 Nbd3+ Qb5 Qf1 Bgc8 Qe1 Bcg4 Qh1 Rb2 Bd2 Ka3+ Rd5 Bd1 Be3 Kb3 Rg5 Rbc2 Qa4+
2R1n3/r3r3/k2n1rr1/1RrR1n1b/2qN1K2/P1BRRQ2/2R1N1B1/1R3rbQ w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 g5 h4 e5 d4 b5 f6 c5 h6 Kc7 h5 Kb6 d6 c4 a3 c3 f7 e4+ Kg3 b3 f4 e3 d5 b2 f5 g4 f6 b4 h7 c2 d7 b3 d6 e2 h6 e1R Bd2 c1R Rh2 Rc5 Ne2 Na6 Kf4 g3 Nd4 g2 Qf3 g1R Bg2 Ne7 Bc3 Qc7 d8R Ra7 Re8 Bg7 f8R Bg4 f7 Nf5 Re3 Bh5 Rc8 Rf8 h8Q Qc6 d7 Nc7 d8R Ka6 h7 Ne8 Rd3 Ree7 Rd5 Qa4 Rb8 Qc4 Rb5 Bf6 Rh3 Bh4 Ra2 Bf2 Re3 Rf1 Ra1 Rg8 f8R Rg6 Rg8 Rf6 Rgg3 Bg1 Rh2 Nc7 Qa8 Ne8 h8R Rg6 Bd2 Rf2 Nc3 b1N Ne2 b2 Bc3 Nd2 Rb1 Ne4 Rd3 N4d6 Rgh3 Nf6 Rc8 Rf1 Qf2 Nfe8 Rhe3 Rf7 Qf3 Rff6 Rc1 b1R Rc2 Bg4 Rh7 Bh5 Rhb7 Ra1 Rb1 Ra2 R7b5 Rb2 Qb8 Rb4 Qc7 Ra4 Qh7 Re7 Qh6 Bg4 Qh2 Bh5 Qh1 Ka7 Rbc1 Ra6 Ra5 Kb7 Ra1 Ra7 Rb5+ Ka6 Rad1 Qb3 Rb1 Qc4
k1r4q/2Q1K1B1/r1R1NP2/2N5/1Qrnn1b1/b2rn1r1/Q2QB1RQ/2r2QQ1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 h5 Kd4 a5 Kc5 e5+ d6 c6 f4 h3 g4 h4 d4 h2 b4 e4 g5 a4 g6 h3 g7 e3 d5 e2 f6 e1R f5 a3 b6 a2 b7 Re8 b5 Rh7 f7 Qe7 b6 Nh6 g8Q Rd8 Be2 Qg5 Nc3 Re8 Bb2 Qd8 Rc1 a1R Nf3 R1a4 Nd4 Rg7 Ne6 R8a6 Qg1 Ng4 Ne4 Ne3 Rc4 Rg6 Bg7 Rg3 f6 Be7 f8Q Ra3 Qff7 Rd3 Qf1 Rf8 Rg1 h1N Rc3 h2 Rg2 Nf2 Qg6 h1R Qg5 Nc4 Qd2 Re8 Qa2 Ne3 Rg1 Rh7 Nd4 Bf8 Qh8 Nf5 Rg2 Rh4 Rc1 Rb3 Qg1 Rf4 Qhh2 Ne3 Rc2 Re7 Rc4 Qe8 Rc2 Kd8 d7 Rh4 Kd6 c5 Rc1 Nc6 b8Q c4 b7 c3 Rc2 Qh5 Rc1 Rf7+ Ke6 c2 Qf4 Qh8 b8Q Ba3 Qb4 Rf8 Qf3 Nd3 Qff1 Nf2 Kd6 Rg8 Ke6 Kc7 Kf7 Bb7 d6+ Kb8 Ne6 Rc8 d8Q Ka8 d7 Rf4 Qde7 Rfg4 Qd2 Rd3 d8Q Rh4 Qdc7 Rhg4 Rb1 c1R Rb6 Rh4 Qeb4 Rhg4 Nc3 Rc4 Ne4 Nd4 N4c5 Bf3 Rc6 Bg4 Ke7 Ne4
B1BNb1n1/1RP1kq1n/3b3R/1B3Q2/rq3Q1q/1BrK4/B1B2b2/1bq1B1N1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 e5 dxc5 Rh6 fxe5 Rh8 Kd2 b5 a4 f5 h4 g5 c4 d5 e4 f4 a6 d4 e6 b4 e7 g3 c6 d3 a7 f3 a5 g4 c5 b3 a6 f2 e5 g2 c7 b2 c6 g3 h5 Bd7 c8B Kf7 e8B+ Ke7 e6 Bg7 c7 Be5 h6 Bd4 h7 Kf8 e7+ Kg7 Qc2 Kf6 Nc3 b1B Nd5+ Ke6 Nf4+ Kd6 Rh6+ Bf6 Bg6 Be5 e8B Qh4 Bef7 Ke7 Ba2 Bd6 Ne6 Be8 Nd8 Nd7 Bgf7 Nf8 Bfb3 Qb4+ Ke3 d2 Kd3 d1Q+ Bd2 Qh5 Be1 Qhh4 Be2 Rb8 a8B f1Q a7 Qf7 Be4 Rb5 a8B Ra5 Bg6 Ra4 Bge4 Nf6 Bef5 Rg8 h8Q N8h7 Qg7 Rh8 Qg4 Ng8 Nh3 g1B Qf4 Bf2 Ng1 g2 Bfd7 Qff6 Bd1 Qf7 Bb5 Be5 Ke2 Bd6 Qcf5 Kf8 Bdc2 Ke7 Nf3 g1Q Kd3 Qgg7 Ng1 Qb2 Bbe6 Qc1 Bab3 Ng5 Ra2 Rh7 Rb2 Rg7 Ba2 Nh7 Beb3 Rg3+ Ke2 Qh1 Bbc6 Bd4 Bbe6 Qa3 Rb7 Qb4 Bb5 Rc3 Bec4 Qh4 B4b3 Rc4 Kd3 Bf2 Ne2 Rc6 Ng1 Rc3+
3r1N2/2P1N2Q/rN1r1NR1/N4B1p/NB2Qn1n/1RKb1N2/1n6/kqn2nb1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 h5 c4 d5 g4 e5 b4 a5 c5 a4 b6 a3 f6 Ke6 b5 d3 c6 d4 f7 Kd5 b7 Kc4 f5 e4 g6 a2 b6 Na6 b8Q Nh6 f6 Ng8 g7 Rh7 c7 Nh6 g8N Nb4 g5 Ba6 b7 Nd5 g6 Nf4 g7 Nf5 Nf3 Rh6 Ba3 Nh4 Qe2 Kb3 Nc3 Bc5 Ne7 Qd5 g8N Qf5 Re1 a1R Rg1 Bc4 Qf8 Rd8 Bb4 Kb2 b8N Ra6 Nbc6 Rg6 Na5 e3+ Kd1+ d2 Na4+ Ka2 Bh3 Ka1 Qg7 Bb6 Qd3 e2+ Kc2+ d1N Qh7 Rh6 Ref1 e1N+ Kd2 Qe4 Bf5 Ne3 Qe2 d3 Kc3 d2 Qd3 Qd5 Qe4 Qd6 Rf2 Nf1 Re2 Ned3 Re1+ Ka2 Rb1 Rg6 Rb3 Ka1 f8N Ba7 Nd7 d1N+ Kc2 N1b2 f7 Rh6 Rg2 Bg1 f8N Qd4 Rg3 Rhd6 Rg6 Qc5 Ndb6 Nc1 Nf6 Be2+ Bc3 Qa3 Be1 Qa2 Bb4 Bd3+ Kc3 Qb1
4Nbb1/1N6/K2N1N1N/2p1bqrB/1qRn1r1N/QbPQ4/2N1B2k/1R2nr2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Nc6 g5 Nb8 g6 Qf6 Be3 Qd8 Bg5 hxg5 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kf4 h4 Kg3 e4 c5 c3 f5 h5 a5 h6 f4 h7 f3 e6 d6 e7 g4 e8B f2 e5 a4 b6 d5+ Kb5 a3 e6 a2 b7 d4 e7 d3 Be2 f1R Na3 d2 Rh4 Kg2 Nc2 g3 Rb1 a1Q Nf3 Qd3+ Rc4 Bg4 Nh4+ Kh2 Qc1 d1B Qa3 Nf6 g8N g2 g7 g1B Bh5 Ra6 e8N Nc6 b8N Bd4 Nh6 Be5 g8N Nd7 Ngf6 Rg8 h8N Qb2 N8f7 Qf5 Nfd6 Qb3 Na1 Rg5 Nc2 Nd8 Nc6 Ne6 Nd8 Ra4 N8b7 Bh3 Na5 Nd4+ Ka6 Qb2 b5 Qb4 b6 Bg4 Ne3 Bb3 b7 Bf3 b8Q Bd5 Qd8 Bg8 Qa1 Nc2 Qa3 Ne1 Nc2 Nb8+ Ka7 Nc6+ Ka6 Nd4 Qd7 Qg4 Qh7 Qf3 Qd3 Qf5 Qb2 Ra1 Qa3 Rf4 Nab7 Nef3 Rb2 Rf1 Rb1 Ne1
b7/q1Q2QQR/Q1P1K1N1/b3Q1q1/2NQ2n1/1pn2BBR/2rbqQ1r/b2k4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 Kf6 Ke4 b5 Kd5 e5 c4 g5 a4 g4 h4 e4 f4 b3 a5 e3 c6 g3 h6 e2 a6 e1B h5 b4 a7 d6 h7 g2 c7 b2 c5 b3 c6 Bg7 h6 Bf8 Rh3 Ba5 Be2 Na6 Nf3 g1B Na3 b1Q Ne5 Bb7 c8Q Bg7 Qc7 Qa2 Nac4 Be3 Qd4 Nc5 Bf3 Bed2 Ba3 Ne4 Rah1 Qe7 Bc1 Rf8 a8Q Qa3 Qaa7 Ba8 Qa6 Qa4 Qf2 Qa1 Ng6 Nc3+ Kd4 d5 Bb2 Kf7+ f6 Ke6 Ba3 Kf5 Bd6 Qd8 Be5 Qa4 f7 Nf6 Kc5 Rfg8 f8Q d4 Qff7 d3 Bd6 Re8 Qd4 Re4 Be5 Qg8 Kd6 Re2 R1h2 Qb5 Ke7 Qgb8 Qf2 Qa7 Rh1 Rg8 h8Q Qd5 Qd4 Rh2 h7 Rd8 Qhg8 Bh8 Qfg7 Ng4 Bd6 Re8+ Kd7 Re4 Q7f7+ Bf6 h8Q Re1 Qgf8 Rc1 Qf8g7 Rc2 Qhe8 Be3 Rh7 d2 Qee7 d1Q Qee8 Rh4 Rh3 Bd2 Qfe7 Nb5 Bg2 Qe2 Qg1 Nh6 Rh2 Kg4 f5 Qdc5 Bg3 Bb2 f6 Qee3 f7 Qcg5 f8Q Nc3 Qee5 Ba1 Ke6 Qe1 Bd5 Qe4 Qfc5 Kf3 Qcd4 Ng4 Rh1 Ke2 Qef7 Rh6 Rh5 Qee3 Qgf2+ Kd1 Bf3+ Qe2 Rh2 Kc1 Rg2 Rh1 Rgh2 Kd1 R2h3 Rh2
QNRr1B1b/qn1b1b2/1BP1pR2/1k1r2qB/1n4Q1/B2N3r/3B2K1/B5Br w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 c4 g5 b4 d5 f4 Kd7 Kf2 e6 h6 d3 h7 a4 c5 d4 b6 Kc6 h5 a3 f6 g4 f7 g3+ Kg2 d2 f5 d3 b7 a2 b5+ Kd5 c6 Kc4 f6 Ra3 b6 Qe8 h6 Qe7 Nc3 Ra6 Nge2 Qe8 Nb5 Ra3 Nf4 Qe7 Qg4 d1Q Nc7 Rb3 Bd2 Qc1 Na6 Ra3 Be2 Bg7 f8B Nd7 b8B Kb5 f7 Nc5 b7 Nf6 Bc7 Bd7 b8Q+ Nb7 Bb6 Nd5 Rf1 Nb4 Qa8 Bd4 Rb1 a1R Nb8 Rc3 Rb3 Ra5 Bd1 Rg8 h8B Qa3 h7 Qg5 Be7 Rd8 f8B Qa1 Bhg7 Qa2 Bh6 Bh8 Bhg7 Qa3 Bgd4 Qa1 Bg1 Qa4 Bde3 d2 Nd3 Qa3 Bf3 d1B Bd2 Bc2 Bd1 Qa2 Rf6 Qa3 Ne5 Bg6 Nd3 Bf7 Rb1 Qa2 Ra1 Nc2 Ba3 Nb4 Rb1 Rb3 Qf4 Qa1 Bh5 Qd4 Qg4 Qdc5 Bc7 Qa7 Bcb6 Bc8 Nb2 Na6 Rd1 Re3 Bdb4 Rd7 Kh1 Ra4 Bf2 g2+ Kh2 g1R Bc3 Rge1 Kg2 Rh1 Bg1 Rc4 Rd6 Ra4 Bd2 Reh3 Nd3 Rc4 Rd4 Nb4 Rd5+ Rc5 Rd6 Re7 Rd8 Bd7 Rc8 Rd5 Rg6 Bg7 h8B Re8 Rh6 Rd8 Rg6 Bh6 Ba1 Bg7 Rf6 Bh8
r1n1B3/1np1b3/RP2QQr1/1b1N4/BbRB2B1/k2q2Bq/B3KN2/q1q1B3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 b4 f5 d4 a5 b6 h5 b5 a4 e5+ Kd7 g6 f3 g5 a3 g7 f2+ Ke2 f4 g6 h4 b7 a2 d6 h3 e6+ Ke8 d5 h2 d7+ Ke7 d6+ Kf6 e7 Ke6 e8B Ra5 Qd5+ Kf6 Bh3 Ne7 g8B Rh6 g7 Rg6 Bd2 Na6 b8B Nc5 Be1 Ba6 Ba7 Nc8 Bg4 Be7 Nh3 Nb7 Nc3 Ra3 Qc6 Ke5 Nd5 Ke4 Rg1 h1Q Bd4 Ra4 Rc1 a1B Rc4 Bc3 b6 Bb4 Rg3 Ra1 Ra3 Bb5 Ra6 Qg2 Bgf7 Ra4 g8B f1Q+ Kd1 Qgh1 Bh7 Qfg1 Ke2 Ra3 Bg3 Qa1 Bfg8 Qhc1 B8e6 Na7 B6f7 Qc8 d8B Ra4 d7 f3+ Kf2 Kd3 Qe6 Qcc3 Bfg8 Kc2 Bgf7 Kb3 Bhg8 Bec5 Bdh4 Be7 d8Q Ka3 Bc6 Qb3 Bfe8 Qd3 Qdd6 Ra5 Qde5 Qd7 Q5f6 Nc8 Bgf7 Qc2+ Ke3 f2 Bg8 f1Q Nf2 Qcb1 Kf3 Qh1+ Ke2 Qh3 Bh7 Ncd6 Bg5 Qc8 Qef7 Rh6 Bd2 Qc1 Ra8 Ba6 Be1 Qf5 Q7e6 Nc8 Ba4 Bb5 Ra7 Qfb1 Bhg6 Qb3 Bb1 Rg6 Ba2 Nbd6 Rb7 Ra8 Ra7 Nb7 Ra6 Qd3+
1n1n2K1/pb2Q2N/4Nbq1/3R2rQ/2r4N/1Nb1k1N1/PR3Nr1/r3BqBN w - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 dxe5 g5 b4 Qf6 bxc5 Qb6 Bh3 Qb2 fxg5 Qb5 g6 Qb6 g5 Qd8 Bg4 hxg4 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 b5 c4 f6 h4 b4 h5 d6 e6 b3 e7 g3 e8Q g2 c6 b2 c7 Bd7 c8N Bh6 c5 Bg7 h6 Qb6 h7 Qc7 c6 Qd8 c7 Bb5 Ne7+ Kg4 Ke6 f5 Kf7 f4 c8N d5 e4+ f3 e5 d4 e6 d3 Nh3 g1B Nf2+ Kg3 Nd2 Kf4 Nf5 b1R e7 Bd7 Rh5 Rb2 Nh1 f2 Nfg3 f1Q Rb1 Qc7 Nb3+ d2 Nd6 Bh3 Nde4 Ke3+ Nef2 Bf6 g7 Bc3 g6 Qa6 Rd5 Bb4 Qh5 Rc2 Rb2 Rc4 Kf8 Nh6+ g8N Bf1 g7 Nf7 Qd8 Bc3 e8N Qf4 Qe7+ Qe4 Nc7 Nd8 Ne6 Bh3 Nec5 Bc8 Ne6 Ndc6 Kf7 Bb7 Nf6 Rg8 h8B Qd3 Nh7 Qf1 Nhg5 Bh2 Nf3 Qb6 Nh4 Nd8+ Kg6 Qc6 Kh7 Qa6 Ne2 Bhe5 Neg3 Rf8 g8N Bg7 Nf6 Rg8 Rc2 Qd6 Ba3 d1R Rb2 Ra1 Bb4 Bf8 Ba5 Rg5 Bg7 Qc6 Kg8 Qe8 Nh7 Qf7+ Kh8 Qg6 Bf6 Bg7+ Kg8 Nd7 Be5 Rac8 Bec7 Nb8 Bcb6+ R8c5 Nge4 Rg2 Neg3 Bcf6 Be1 Bc3 Bc7 Ra5 Bb6+ Bcd4 Nh3 Kd3 Rg5 Bc3 Bg1 Rac5 N3f2+ Ke3 Rd5 Ra5 Rd1 Rg5 Rd5 Bgf6+
1BbQ4/b5bQ/kN2n1q1/1rp2QnQ/1Q1rB1Qp/3R2P1/r1Nb4/Q2R2K1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 c5 d4 Kc7 g3 Kb7 f6 h5 f5 e5 d6 a4 f7 e4 f6 h3 d5 h2 b6 a3 d7 a2 b5 h4 d6 Qe8 d8Q Bg4 d7 Bd6 f8Q Bf5 f7 Nf6 Qg7 Ng8 f8Q Ne7 Bg2 Ra3 Nf3 Nec6 Nd4 Rc3 Qgg4 Ra3 Nc3 Na6 Qde7 Rh6 d8Q+ Nc7 Nc2 Qg6 Nd5 Ne5 Qh7 Nf3 Bf4 Bc8 Qff5 e3+ Kf1 Ng5 Be4 e2+ Kg2 Ka8 b7+ Ka7 b6+ Ka6 b8Q e1B b7 Nce6 Nb6 Bd2 Qde2+ Rd3 Rad1 a1B Kf1 Bg7 Qa7+ Kb5 Qa1 Bb8 Rg1 Ba7 b8Q h1R Qb7 Rh2 Bb8 Rg2 Rh1 Rf2+ Kg1 Rh2 Qh5 Rf2 Qeg4 Rd4 Qa8 Rh2 Qb1+ Ka6 Qb4 Bc3 Rd3 Rd2 Ne1 Ra2 Nc2 Bd2 Qad5 Ra3 Qa2 Ra5 Qa1 Ra2 Qhg8 Rh8 Qgh7 Rg8 Kg2 Rf8 Rd1 Rf7 Kg1 Rb7 Na4 Rb5 Nb6 Bc1 Bd5 Bf4 Be4 Bd2
R1bR3b/5B2/bBQ1RQ1n/P4R1b/n1RR3r/1p1rp3/Rn2KN1k/6Nq w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 f6 Kg6 f5+ Kh7 a5 b5 f7 b3 g6+ Kg7 d6 Kf6 d7 e4 g7 b2 d5 Ke5 g5 b4 d6 c4 f6 c3 g6 h4 Ra2 h3 Bc4 c2 Ke2 b3 Nd2 Nh6 g8R Kf4 g7 Kg3 Qf1 Qb6 d8R b1B d7 h2 Bb2 e3 Qc1 Qc5 Bd4 Qc6 Bb6 Na6 Ne4+ Kg2 Re8 Nc5 d8R Na4 Rd4 Ra7 Nf2 Rd7 Re6 Bb4 f8R Bc3 Rd1 Rd3 f7 Qe4 Rd8 Qh7 f8R Bd4 Qb2 c1N+ Ke1 Bc2 Rf5 Bc3+ Rd2 Bd1 Rge8 Bh5 g8Q+ Bg7 Qf8 Bf6 Qd6 Qb7 Rf8 Rh7 Qd7 Bh8 Qf6 Qd5 Qc6 Ba6 Nf3 Kg3 Rf1 h1B Ng1 Kh2 Ra8 Bg2 Rfd8 Bh3 Rdc2 Qf3 Rf4 Bf5 Rfd4 Qh1 Bd5 Bfg4 Rcc4 Bf5 Re7 Bfc8 Bf7 Rg7 Ree4 Rg4 Re6 Rh4 Ne4+ Ne2 Rf5 Nb2 Nf2 Nc3 Kf1 Nca4 Ke1 Ng4 Ke2 Nh6+
Bn2qB2/p2BbbN1/b3p1rR/qBBbP1Rb/5K1N/5Q2/3kr3/Q4BB1 w - - 0 1 legal: proof: h4 c5 a4 b5 axb5 g5 hxg5 Qb6 g6 Qb7 g7 Nh6 f4 Qa6 d4 cxd4 g3 Ng8 g4 Nc6 f5 Qb6 g5 Qd8 Nd2 Ne5 Nb1 Ng6 fxg6 Qb6 Ra2 Qc7 Ra1 Qd8 Kf2 h5 Kf3 f5 c4 d5 b4 Kd7 e4 Kd6 b6 Ke5 c5 h4 c6 f4 b5 h3 b7 h2 b8B+ Qd6 b6 d3 c7 Kd4 b7 d2 e5 Qc5 Nc3 Rh4 Na4 Qb5 Nc5 Kc3 Ne6 Nh6 g8B d4 g7 d3 g6 Bd7 c8B Nf7 Bd6 Nd8 b8B Qa5 Bc5 Be8 Bd7 Nc6 Bbd6 Nb8 Ke4 Rh7 Nf3 Bf7 Nh4 f3 Kf4 f2 Qf3 d1B B1e3 d2 Rg1 h1Q Rg5 Bb3 Rb1 Ba2 Rb6 d1B Bfb5 f1B Bg1+ Kd2 Rc6 Be8 Bf7 Bfe2 g8Q Bd5 g7 Qg2 Bg6 Bf7 Be4 Rh6 Qh7 Rg6 g8B Qh3 Ng7 Qe6 Qhh5 Bd3 Qh1 B3c4 Q5f3 Bce2 Ba4 Ba6 Bb5 Be2 Bed3 Bd1 Bf1 Be2 Qfh3 Bg4 Q3f3 Bh5 Rf5 Rg2 Rg5 Rf2 Bh7 Re2 Be4 Qg6 Qa3 Qe6 Qa1 Qg6 Qf3 e6 Rc8 Be7 Rh8 Nc6 Rh6 Rg8 Ba3 Nb8 Bdc5 Bc4 Ba8 Bd5 Rg2 Qh7 Rg5 Qh8 Ngf5 Rg6 Ng7 Bd8 Bf8 Qg8 Bfc5 Qe8 Bf8 Bf6 Bac5 Be7
B5N1/2rR2Bn/1K2p3/p4bp1/NQQ5/n4R1R/qP1r1bR1/1RRqk1nR w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 g3 h4 g2 f6 c6 h5 e6 h6 g6 h7 Na6 b6 Be7 f7 Bb7 f8Q Bc8 b7 Nb8 f5 Nd7 b8R Ra6 f6 Rb6 f7 Ra6 Ne2 g1N Qa4 Ngf6 Qc4 Nb6 Bg2 Ne8 Nf4 Qc7 Nh5 Qd7 Nc3 Qb7 Na4 Nf6 Rb1 Ra7 d3 Qa6 Bh6 g5 Bg7 Bb7 Rc8 Qb5 Be4 Qb3 Bf3 Rg8 h8R Nh7 Nf6 Qa2 Rc7 Ba6 Qb8 Rf8 Ng8 Rd8 f8R Bb5 Rc8+ Rc7 Be4 Ba6 Rf2 Bb7 Rg2 Rd7 Rf8 Rd8 Rf3 c5+ Kc3 Bc6 d4 Be8 Rc1 Bg6 Kd3 Bf5 Rhh3 Nc8 Qbb4 Na7 Rb1 Nb5 Ke3 Kd7 d6 Na3 d5 Bf6 Rc1 Bd4+ Kd3 Bf2 Kc3 Ke8 d7+ Kf7 d6 Kg6 Bb7 Bg3 Ba8 Bf2 Rhg3 Kh5 Rb1 Rdc8 d8R Rb8 Rd7 Rd8 Qf4 c4 Rh3+ Bh4 Kd4 c3 Qc4 c2 Qd2 c1Q Qdb4 Rb7 Kc5 Rc7+ Kb6 Qe1 Rc3 Qd1 Rf7 Rdd7 Rcc1 Rd8 Re3 Bf2 d7 Bc2 Rf3 Bf5 Bd4 Kh4 Re1 Rdc8 d8R Rd7 Rf1 Rc5 Bg7+ Rd4 Rd7 Rc7 Rh2+ Kg4 Rfh3 Kf4 Rh1 Kg4 Rg3+ Kf4 Rg2 Ke3 Rd6 Rd2 Rd7 Nf8 R8h5 Nh7 R5h3+ Bg3 Rh5 Bh4 Rf4 Bf2 Rh6 Bd3 R6h3+ Ke2+ Nc5 Ke1 Rff3 Bh4 Na4 Bf5 Ra1 Bg3 Rab1 Bf2+
2q1R2n/RBpBp1RK/N1n1rRRQ/2Q1P1N1/8/rp3pkb/8/R3q1bR w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h6 g6 Qd6 g5 Ra6 g7 Qb4 g6 Qd6 Bb2 Ra8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Ke3 Kd6 Ke4 b5 d4 f6 a4 b4 h4 g4 h5 g3 h6 b3 a6 g2 a5 Rh7 a7 Nc6 a6 Bb7 Kf5 Rh8 e4 Ne5 h7 Qb8 Nh3 g1Q Qh5 Nf7 Ng5 Ne5 Nd2 Nc6 Bh3 Kd7 d6 Ne5 d5 Nf3 e5 Qg2 Qh6 Qd8 Nde4 Qh2 Nc5+ Ke8 Rhf1 Rc8 a8R Qf2 a7 Qe1 Na6 Kd7 Bg4 Rb8 Rf2 Bc6 Rf1 Rb6 Rf2 Qb8 Rf1 Kc8 d7+ Kb7 d8Q Qc8+ Qd7 Ba4 Qe6 Bd7 d6 Kc6 Rf2 Be8 Qd7+ Kd5 Qe6+ Kd4 d7 Ke3 Qc4 Re6 d8R Bb5 Qc2 Bf1 Re8 Bg2 Rf1 Bh3 Qc5+ Ke2 Kf4 f5 Rh1 Nf6 g8R Nd7 Rg7 Nb8 Rf1 Rg8 h8R Nc6 Rhh7 Rh8 Rh1 Rg8 Rf7 Rh8 g7 Rg8 Rf6 Rh8 Qc3 Kf2 g8R Nh4 Rgg6 Kg2 Rhg7 Rg8 Nf7 Kf2 Kg5 f4 Qc2+ Kg3 Qc5 f3 Kh5 Nf5 Ng5 Nd6 Bf5 Nf7 Bg4 Rd6 Bd7 Nh8 Rb8 Re6 a8B Nb4 Rb7 Nc6 Rgf7 Bg7 Ra7 Bf8 Qh7 Bh6 Rfg7 Rf8 Bb7 Rd6 Re6 Rf4 Ref6 Ra4 Rgg8 Ra3 R6g7 Nf7 Kg6 Re6 Qh8 Qe2 Kh7 Qe1 Rgg6 Nb8 Qg7 Nh8 Nf7+ Bg5 Qh6 Nc6 R8g7 Rd6 Bg4 Be3 Ng5 Bg1 Bd7 Re6
1b2Kr2/q1p4B/2P1BB1k/q5RB/R1Np1Q1B/3b4/n1pBpnB1/2QN1b2 w - - 0 1 illegal: No proof kernel
Rr2r1RB/1p1R4/br1R4/1krN1K1N/RN2Qb2/2Bb3N/2N4P/b4r2 w - - 0 1 legal: proof: e4 h5 g4 a5 b4 e5 bxa5 f5 f4 d5 exd5 e4 d6 Nd7 c4 Kf7 d4 Ne5 d7 Ng6 c5 N8e7 d5 Ne5 fxe5 f4 Bh3 Nf5 gxf5 Qf6 Bg4 Qd6 cxd6 hxg4 Ke2 c5 d8R g5 a4 c4 a6 f3+ Ke3 c3 d7 Ke7 f6+ Kf7 a7 f2 d6 Ke6 f7 f1B a5 c2 a6 g3 Qd5+ Kf5 e6+ Kf6 e7 g4 Kf4 e3 e8N+ Kg6 Nh3 g2 Bd2 g1B Ra4 c1R Nf6 e2 Qe4+ Kg7 Kf5 e1R Bc3 g3 Na3 g2 Nc2 Bd4 Rg1 Rb8 a8R Rh6 a7 Be7 f8B+ Kf7 Bg7 Ba6 Nh5 Bg5 Be5 Bf4 Bh8 Re2 Rd1 g1R Rg8 Rf1 Rd3 Re6 d8R Ree1 d7 Ke7 Rd1 Kd6 Rd2 Kc5 Rd1 Bde5 Rd6 Rf3 Rde8 Rfe3 d8N Rf1 Re7 Kb5 Nc6 Rh6+ Red7 Re2 Bd2 Ba1 Bdc3 Ree1 N6b4 Re6 Rd1 Rb6 Rd6 Re2 Qd4 Re7 Qe4 Re8 Bcg7 Bh6+ Kg4 Rfe1 Qg6 R1e6 Rf7 Rh1 Bc3 Kc5 Rh7 Bd7 Qe4 Bg5 Kf5 Bf4 Re7 Bdb5 Red7 Rbd8 Rb8 Bd3 a8N Rf1 Nc7 Re5+ Kf6 Rd5 Ra8 Rb8 Kg6 Rd4 Kf6 Rc4 Ncd5 Kb5 Kf5 Rc5
1rR1BBN1/1Q6/b1n1nr2/k1B2N2/qq1q2P1/R1r2N2/N1B1bN1K/5nB1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g3 Bg7 g4 gxf4 Ra5 Bf6 Ra1 Bh4+ Ke2 Bg3 hxg3 Nh6 Ke1 Ng8 Kf2 Kd7 Kg2 e5 b4 a5 d4 c5 b6 h5 b5 h4 b7 Kc7 g5 Kb6 g4 e4 g6 c4 g7 h3+ Kh2 c3 f6 a4 f7 c2 f8B f3 d6 f2 d5 a3 d7 a2 d6 e3 Qd5 e2 Nd2 e1Q Ngf3 Rh6 Ne4 Qc3 Bd3 f1B Nf2 Bg2 Be3+ Qc5 Rhc1 Qh4 d8B+ Ka7 d7 Rh5 Bde7 Kb6 d8N Nf6 g8B Ka5 b6 Ne8 Ne6 Qf6 Bf7 Qd4 Ng7 Nc7 Nf5 Bf1 Be8 Nc6 b8N Ba6 b7 Ne6 Nd7 Be2 b8N Rh6 Nf6 Rg6 Qe4 Qcb4 Ng8 Rh6 Bc5 Rf6 Rh1 c1R Bc2 Bab5 Na6 Rb8 Rg1 Bbd3 Rg3 Bb5 Rb1 a1Q Rb3 Qaa4 Rc3 Qb2 Nb4 Ba6 Na2 Qbb4 Bb3 Rc2 Rc4 Rc3 Bc2 Ncd8 Qb7 Nc6 Kh1 h2 Kg2 h1N Kh2 Rd3 Rh3 Ng3 Rc3 Qb1 Ra3 Rc3 Rh7 Bab5 Rc7 Ba6 Rc8 Qe1 Nd3 Qb1 Bg1 Qbb4 Nf2 Nf1+
r1q3k1/nB5r/2N2q2/3NBN2/1NQq1B2/3bR1P1/n3B1p1/nR1bKNB1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 Be7 f4 exf4 g4 Bf8 Ra6 f5 gxf5 g5 Ra4 g4 Ra1 g3 Ra6 g2 Ra1 Bc5 Qc2 Qg5 Kd1 Bb6 Qb3 Bf2 Kc2 Qh4 Kd3 Bg3 Qd1 Bf2 Kc2 Qd8 Kc3 Qd6 Kc2 Bg3 hxg3 Qc6+ Kd3 Kd7 Ke4 Qb6 Kf3 Qf6 Kf2 Qd8 Ke1 Ke8 e4 Kf7 b4 a5 d4 h5 e5 c5 b6 f3 b7 a4 f6 h4 b5 c4 e6+ Kf8 e7+ Kf7 e8B+ Kf8 d6 a3 b6 a2 d5 c3 f7 h3 d7 c2 d6 h2 Qd5 Na6 b8N Qe7+ Be2 Nc7 d8B Bf5 d7 Nb5 b7 Bg6 Bb6 Nf6 d8N Na3 Ndc6 Rh4 Na6 Qd6 b8B Qd8 Bcf4 Bd3 Bbe5 Ne4 Nh3 Rh7 Nd2 Nb5 Nf1 Nec3 Rb1 a1N Nab4 Qf6 Bg1 Na2 Qc4 Na7 Bd7 Kg7 f8N Kh8 Ne6 Kg8 Bc8 c1Q+ Bd1 Qb2 Bb7 Qd4 Be2 Bc2 Rb3 Bd1 Re3 Bb3 Bf2 Bd1 Rg1 h1Q Ng7+ Qd5 Nf5 Qh2 Ng5 Qh3 Ne6 Qd7 Rh1 Qhh4 Bg1 Qc8 Kd2 f2 Nc7+ Qce6 Ncd5 Qc8 Nh2 f1B Ke1 Qff8 Bf3 Bfe2 Nf1 Bd3 Be2 Qff6 Bg5 Qg7 Kd2 Bb3 Bh2 Qe4 Bgf4 Nc2 Kd1 Qg6 Nd2 Qh6 Rf1 Qf6 Bg1 Qd4 Re1 Qg7 Nf1 Na1+ Kd2 Qg6 Rb1 Qf6 Ke1 Bd1
N1NQbN2/N2BRn2/2b3q1/3r2nR/BK4P1/3Rp1qN/2R4R/r2rk2n w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bb7 b3 Bg7 f5 Bh6 Bb2 Ba6 Be5 Bc8 Bf4 gxf4 Qe2 Bg5 Qd1 Bh4+ Ke2 Bg3 hxg3 Nh6 Ke1 Ng8 d4 Kd7 Kd2 Kd6 Kc3 e5 f7 h5 f8N c5 g5 a5 f6 c4 g4 f3 f7 e4 b4 h4 b6 a4 g6 a3 b5 h3 g7 f2 b7 e3 b6 a2 Nd2 h2 Ne4+ Ke7 Kb4 c3 Ne6 c2 f8N c1N d6+ Kf7 d5 Qf6 d7 Qh6 d8R Ne2 d6 Nd7 b8R Ra5 b7 Ngf6 Re8 Qg6 Nc7 Ng3 Rc1 a1R Bb5 f1Q Na8 Qh3 Rc2 Ne5 d7 Nh7 d8R Ng5 Rd3 Bd7 Nd6+ Kf6 g8B Nef7 Ba4 Rd5 Re7 Be8 Nc8 Qh4 Nh3 Rh6 Rg1 h1B Rgg2 Rh7 Rh2 Rg7 Rd7 Ke5 Rdc7 Ke4 Re7+ Re5 Qd2 Kf3 Bh7 Rd5 Bg8 Nh6 Be6 Nhf7 Bed7 Rg8 Qc3 Bg2 Qc7 Nh1 Qd8 Rg7 Na7 Rd1 Rbc8 Rg8 b8N Qg3 Nbc6 Ra1 Rc5 Ke2 Rc7 Kf1 Nc8 Ke1 N6a7 Rh8 Ra5 Rh5 Rcc3 Rd6 Rc2 Bc6 Ra3 Rdd1 Rd3 Nh7 Rb5 Rd5 Rbc5 Nhg5 Rb5 Rd6 Rbe5 Rd5 Rf5 Ne4 Rh5 Neg5
K2kq1R1/6n1/1R1BB2r/rQbbR3/1rR3q1/2Br2pq/2N3NP/B3R2B w - - 0 1 illegal: No possible last move
1N4b1/3bb1QN/1Kpn3R/B1r1P2B/5B2/k1nbn1R1/2B3R1/rB1RR1b1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Qd6 Rh4 Qa6 Rh1 Qa5 bxa5 Kd8 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 d4 Kd6 g4 h5 e4 f5 a6 a3 e5+ Kd7 a7 f3 Ke3 f2 d6 h4 g6 a2 g5 h3 b6 Kc6 b7 h2 d5+ Kc5 g7 Kb4 Kd4 f4 d7 f3 d8B Rh3 d6 Be6 d7 Bc4 g6 Rg3 Na3 Nf6 g8B Na6 b8R+ Bb5 g7 Ne8 Bd3 f1B Bb1 f2 Bb3 Nf6 g8R Nc5 Nc4 Rh3 Qg4 Rf3 B3c2 Bh3 Qg7 f1N Bf4 Ne8 Nb6 Be6 Nh3 Ka3 Ng5 Nd6 Nh7 Nce4 Rc8 Nc3 Kc5 Be7 Rg1 h1B Rg2 Rb8 a8B Ne3 Rh8 Rf2 Bf3 c6 Bh5 Bd3 Bc7 Bg8 d8R Ra8 Nd7 Be6 Rg3 Bhd5 Nb8 Bd7 Ba5 Bg8 Rc7 Ra6 Rb7 Rh2 Rb2 Ra8 Kb6 Rh4 Bh6 Rc4 Bf4 Ra7 Ng5 Rc5 Rh6 Ra8 Nh7 Ra7 Bb3 Ra8 Rbg2 Ra7 B1c2 Ra8 Re1 a1B Ba2 Bb2 Bab1 Bc1 Rd1 Bd2 Rf8 Be1 Rf5 Bf2 Rfg5 Bg1 Re2 Bc8 Ree1 Bce6 Rg2 Bd7 R5g3 Kb2 Bb4 Ra1 Ba5 Ka3
3BBbK1/1RP2nq1/B5p1/N1rRb1Br/3Q2R1/qpN2B2/2k1b2R/1R3n2 w - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 gxh5 c5 dxc5 f5 b4 axb4 e4 Qb6 exf5 e4 Nf3 Qf6 Ng1 Qe5 fxe5 Ke7 Bh6 Kf7 Bc1 Ke8 Kd2 Ke7 Ke3 d5 Kf4 b5 Kg5 d4 Kg6 b3 a4 d3 c4 b2 h4 e3 h6 b4 h5 d2 a5 b3 a6 e2 f6+ Ke6 a7 e1B h7 Nc6 f7 Bh4 h6 Bf2 Nf3 Nd4 c6 Ba6 c7 Bb4 c8R Nc2 f8B Nd4 c5 Kd5 Kf7 Ke4 c6 g6 e6 Nc2 c7 Ba5 e7 Be1 e8B Bb7 Ba6 Nd4 Be7 Ne2 Rh2 Bb4 Nd4 Ng3 Rd8 Nf1 Nc6 Bg3 Rd5 Be5 Bd8 Bf8 Nc3+ Ke3 Ra4 b1Q Na5 Qa1 Rg4 Qa3 Rh1 Rb8 a8B Bc6 Rhg1 Rb5 Rh1 Rc5 Rh2 Ne7 B8b7 Nf5 Ba8 Rg8 h8R Bb5 h7 Be2 Bac6 Bh6 Rh1 Rg7+ Kf8 Nd6 Rg8 Nf7 h8R Bhf4 R8h4 Rh7 R4h2 Rh5 Rh8 Bh6+ Kg8 Bf8 Ba8 Rf5 R8h4 Rg5 Rb4 Rf5 Rhg4 Rh5 Rb7 Rc6 Bb2 Rc5 Qa1 d1Q Bc1+ Kf3 Bcg5 Qd4 Bh4 Ke3 Bhg5+ Bf4 Rhg1 Kd2 Rgh1 Kc2 Rhg1 Ne3 Re1 Nf1 Rb1 Qab4 Qa4 Qa3 Qc4 Qf6 Qd4 Be5 Rb5 Rc4 Rd7 Qf4 Bf3 Qf6 Rdd5 Rc5 Rb7 Qg7#
3qR3/RBq1pb2/2B2QNR/4P3/1k6/qbn3RB/1bB2NBp/2K1nRn1 w - - 0 1 illegal: No possible last move, all moves rejected
2R2r2/6n1/KN1Q2qk/R1r3b1/4RN1N/p2NpP1B/pb2p1RB/b2R1N2 w - - 0 1 illegal: Other
2Bb3N/B2bP2k/1b3Q2/1N2Bn2/1N1nr1B1/4N1r1/1Rr1qqb1/KN1R2Bn w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 c5 Kd2 a5 Kc3 f5 e4 Kf7 g4 Kg7 b4 h5 Kb2 h4 b6 c4 d6 f3 b5 a4 g6 h3 d5 f4 g5 h2 e5 f2 b7 f3 d7 Bb4 d6 Ba5 b6 Qe7 d8N Bh3 d7 Bf5 e6 Bg4 Be2 f1Q Be3 f2 Qd6 Bf3 Nf7 Rh3 d8N Qe1 Nh8 f1N Ra2 c3+ Ka1 c2 Nc6 c1B Nb4 a3 Rb2 Bc6 Bg4 a2 Nf3 Bb5 Nd4 Nc6 b8B Rg3 b7 Bd8 Ba7 Nh6 b8B Nf5 Bg1 Qf2 Qe5+ Kg8 g7 Kh7 g8N Be3 Nh6 Qe8 Bc7 Rc8 Qf6 Ba4 Nb5 Bb6 Bcb8 Ncd4 Be5 Rc2 e7 Qh5 Bd1 Qhe2 Ng4 Kg8 Ne3 Kh7 Nd6 Bd7 g6+ Kh6 g7+ Kh7 Rb3 Rg6 Nb5 N1g3 Rb2 Rg4 Qf8 Re4 Qf6 Qfe1 Bf2 Q1d2 Re1 h1B Bg1 Bg2 Rf1 Qf2 Bg4 Nh1 Rd1 Qde1 Ng6 Qee2 g8B+ Kh6 Be6 Kh7 Nh8 Rc3 Rc2 Rc7 Kb2 a1R Rcd2 Ra3 Rc2 Be8 Bc8 Bd7 Rcd2 Rd3 Ka1 Rc5 Rb2 Rc2 Ned5 Rh3 Ne3 Rg3
1b2Rrrr/N4r2/7R/4P2q/nn1RKN1N/QN4bB/b1R1bBb1/1R1N1k2 w - - 0 1 illegal: No possible last move, all moves rejected
q1q2kB1/3b1q2/Rrp2r2/1n1BbN2/4NR2/1BP3nK/b6R/BrR1RQB1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 g4 a5 b4 h5 f4 d5 Kf2 d4 Kg2 c6 e6 a4 g5 d3 c3 a3 e7 d2 b6 a2 b5 Bg7 f6 Bg4 b7 Bh6 g6 Nd7 b8R Ra3 f5 Nf8 f7+ Kd7 e8B+ Ke7 b6 Bf4 b7 Bg3 g7 Nf6 g8B Ne4 Ne2 Ne6 f8R Nc7 Ra8 Nb5 b8R Be5 Ng3 Rb3 Rh2 Rh6 Bef7 Qc8 Bd5 Rf6 Ra6 Rb4 Qe2 d1B Bb2 Bb3 Nd2 Bc4 Rb1 a1Q Rc1 Ba2 Qd1 Rb3 Bfc4 Rb4 Qf1 h3+ Kg1 h4 Bb3 Nc7 Kh1 Rb6 Re1 Nb5 Kg1 Qc1 Ba1 Qa3 Rf7+ Ke8 Rc1 Qa4 Re7+ Kf8 Re6 Nf2 Nde4 Nh1 Rba8 Qa3 Ra4 Qe7 R8a6 Qf7 Re7 Rg6 f6 Bd7 Re6 Rh6 Nf5 Ng3 Kf2 Rg6 Kf3 Rh6 Kg4 Qa8 Rb2 h2 Kh3 h1Q+ Rh2 Qf3 Rc4 Qfe8 f7 Qec8 Ng5 Rf6 Rf4 Bc7 Ree1 Be5 Ne4 Qf2 Kg4 h3 Rg2 h2 Kh3 h1R+ Rh2 Re6 Nh6 Ke7 f8B+ Ke8 Nf5 Rf6 Bc5 Qf3 Bg1 Kf8 Rh4 Qh5 Bd4 Qf7 Rf4 Rg1 Bf2 Rg2 Bd4 Rb2 Bg1 Rb1
b1bnr1N1/1bN3bK/1kB1R3/pn1R4/1N1RRrNB/2Rn1P1r/1qQ5/4N3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Ke4 e5 d4 c5 g4 Kc7 b4 h5 d6+ Kb6 g5 c4 f6 c3 d5 h3 f3 h2 d7 c2 Kf5 h4 Kg6 h3 f7 e4 d6 e3 Ra4 e2 Na3 Be7 f8N e1R Ne6 Nf6 Nc7 Qf8 d8R Ne8 d7 Kb7 b6 Rh4 b5 Nf6 Re4 Rh5 Re8 Re3 d8R Nc6 Rd5 Nd8 Qd2 Bc5 R8e6 Bd4 Bb2 c1N Nc2 Ne8 Ne1 Rh4 Qc2 Bg7 Bf6 Rf4 Kh7 Nd6 g6 Nd3 Bh4 Qf6 Be2 Qb2 Bd1 Kb8 b7 Ka7 b8R Bb7 Rc8 Kb6 Be2 Rb8 Red4 Ba8 Rde4 Bh6 g7 Rb7 g8N Bg7 Ne8 Re7 Nc7 Re8 Red4 Re5 Bd1 Rg5 Rde4 Rg3 Be2 Kb7 b6 Nb5 Red4 Nf2 Bc4 Nd3 Ree4 Kc6 b7 Kb6 b8N Nd6 Ne2 Nb5 Rg1 h1B Nc3 h2 Nd1 Bg2 Nba6 h1B Ne3 Rh3 Ng4 Bf1 Nb4 Be2 Bb3 Bg2 Ba4 Rh1 Rf1 Bh3 Rf2 Bef1 Rfe2 Rh2 Ne6 Rh1 Rc3 Rh2 Nc7 Rh1 N4f6 Bc8 Ng4 Bcb7 R2e3 Bh3 Re2 Na3 Bc6 Nb5 N4h6 Bd7 Ng4 Bdc8 Re6 Rh2 R2e4 Rh3
b2nKRr1/R1q1p3/B6b/b4nBk/R1RN1rnN/rN3P1R/8/2NN2Qn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 c5 Ke4 h5 Ke5 a5 g4 c4 b4 a4 d4 a3 f3 c3 g5 c2 f6 Kg6 b6 a2 b5 h3 b7 h4 b6 h2 f7 h3 d6 Ra3 d7 Bg7+ Ke6 Nc6 f8N+ Kh5 Kf7 Nb4 b8R Re3 b7 Be5 d5 Kh4 d6 Nf6 g6 Rh6 g7 Re1 g8R Qc7 d8R Re3 d7 Rd3 Ra8 Bb2 b8N Bb7 Ra7 Qc3 Bg5+ Kh5 Ng6 c1B Nh4 Ba8 Rdf8 Ng4 d8N Rg6 Nbc6 Rd4 Ke8 Rf4 Nd4 Nc6 N8e6 Nd8 Nb3 Qc7 Ba6 Bc3 Ne2 Ba5 Nbc3 Bd2 Rc1 a1R N6d4 Ra3 Qg1 Be3 Rg7 Bd2 Rgf7 Rg8 Nd1 Be3 Rc4 Bed2 Nec1 Be3 Qf1 Bed2 Rg1 h1N Rg3 h2 Rh3 Ng3 Qg1 h1N Rf6 Be3 Rb6 Nf5 Rbb4 Re4 Ra4 Bf4 Bf6 Bh6 Bg5 Rf4
qNq4q/6kN/1K1B2b1/1R3Qb1/Nrn2n2/RRRP4/pr1NN2q/1qR4B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 a5 Kc4 e5 g4 c5 b4 h5 f4 a4 d3 h3 b6 e4 Kb5 a3 d6 c4 g5 c3 f6 h2 g6+ Ke6 d7 c2 f7 Kf6 b7 h4 f5 e3 g7 h3 Ne2 Rh5 Bg2 Rh7 Nd2 Nc6 b8R Nce7 Qf1 Nh6 g8R Nd5 Rg5 Be7 f8N Nf4 Ne6 Nf7 Nc5 Rh4 Na4 Qh8 d8R Nd6+ Kb6 a2 b5 Kf7 f6 Bf5 Ba3 Bg6 Rc1 Ra7 Rg1 h1Q Rc5 h2 Rc3 Ra5 Bc6 Qf3 Rg5 h1Q Ra8 Qf2 Rdb8 Qfh2 Qh3 Ra7 Qf5 Rc7 Ra5 Rc8 Rb7 Rb8 Bc5 Kf8 f7 Kg7 f8N Qe4 Nh7 Nc4+ Ka7 Qd5 b6 Qdg8 Bd6 Qf8 Rcg1 c1Q Bh1 Qb1 Rgc1 Qc8 Rb5 Rg4 Rbb3 Rg2 Ra3 Rf2 Ng1 e2 Rh5 e1Q Ne2 Qd7 Ka6 Bg5 Ka7 Re8 Ka6 Re4 Rb8 Qeg1 b7 Qgg2 Ka7 Qdc8 Ka6 Nb2 Kb6 Qf3 Rab3 Rg2 Ra8 Rf2 Ra5 Rb4+ Rb5 Qfg2 b8N Qa8 Rh4 Ne6 Rhc4 Nf4 Ra3 Rg2 Rcb3 Rf2 Rc6 Nc4+ Kc5 Nd5 Nf4 Nc3 Ne4 Rb2 Nd2 Ne5 Kb6 Ne2 R6c3 Qc2 Nh3 Qb1 Ng1 Nf4 Ne2 Nc4+
q2B1rkB/2qKR3/nQ1N2q1/2Bb3p/N1R5/PR1qr1b1/2BRn1R1/q1B5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 b5 Kg4 e5 f4 c5 d4 h6 a3 e4 g6+ Kg7 d6 b3 d5 c4 d7 b4 d6 c3 Nd2 e3 Ne4 b2 Rb1 c2 Bd3 e2 Rh4 e1Q Ne2 b3 N2c3 Qg1 Na4 Qe7 d8R Be6 d7 Qe8 Nd6 Qe3 Qg1 Qe4 Qb6 Kf6 g7 Ne7 g8R Qd5 Rg7 Nc8 Re7 Bf7 g3 Kg7 f6+ Kg8 f5 h5+ Kg5 Qb5 g4 Bd5 f7+ Kg7 Kf4 Na6 Ke5 Na7 g5 Rh7 Be4 Qd3 g6 Nb5 f6+ Kh8 Bf5 Nc3 Rc4 Ne2 Be4 Bg7 f8B Kg8 Bf5 Bh6 g7 Bd2 Bg6 Be1 Be4 Rh6 Kf5 Bg3 f7+ Kh7 g8R Re6 Bg7 Qf8 Be3 c1Q Bh8 Qh1 Bc1 Rb8 Ra1 b1Q Ra2 Qg1 Rd2 b2 Rdc8 Qa2 d8B b1Q Rg5 Ra8 Rb8 Qaa1 Rg4 Qh1 Rg6 Qfg7 f8B Kg8 Rbb7 Bh2 Rg2 Bg3 Qf2 Qgb2 Rb3 Re5+ Kf6 Rc8 Bg6 Rb8 Qb6 Re3+ Re5 Ra8 Ke7 Rc8 Kd7 Q1c2 Bh4 Ra8 Bfe7 Rf8 Bd8 Qcb1 Re7 Qe5 B4f6 Qg5 Bf5 Qg6 Bd4 Qbb2 Bc5 Qe5 Nf7 Qb8 Nd6 Bf7 Rg1 Qha8 Rg2 Bd5 Be4 Qdd4 Bb1 Qdd3 Bc2 Qc7+
B2Bb3/1P6/2NqBNn1/r3q1N1/2KR1Nb1/BB3pk1/r3bNbb/3nRQ2 w - - 0 1 illegal: No possible last move
BBb5/B1N1rRBQ/1B1Nq3/nRqq2q1/4RprP/bR5n/K1R5/4bk2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 d4 Kd6 Kd2 g5 Kc2 f5 Kb3 a5 h4 c5 h6 a4+ Ka2 f3 b4 f4 e5+ Kd7 e6+ Kd6 b6 f2 h7 g4 e7 c4 e8R a3 b7 g3 b5 c3 b6 g2 Be3 c2 Re4 c1B Rh2 Bd7 Qh5 Ra4 Nc3 Be7 Nf3 g1Q Rb1 Nf6 Nd2 Bc8 Rb5 Nc6 b8R Rg8 h8B Nh7 b7 Ra7 Bg2 f1Q Bg7 Ng5 Qh7 Nh3 Bf3 Qg5 Nc4+ Kd7 d6 Bd2 d5 Qf2 Rb3 Na5 Nb5 Qe8 Bb6 Qc5 Nc7 Be1 Rc2 Bf8 Rb5 Qe6 Bg2 Kd8 d7 Ke7 d8R Kf7 Bh6+ Kf6 d6 Qgd5 d7 Rg4 Re8 Bd6 d8B+ Be7 Ka1 a2 Nd6 Qg5 Rg8 Qgd5 Rg7 Qg5 Rd4 Ke5 Rf7 Qed5 Rdb4 Qe6 Rb3 Kd4 R3b4+ Ke3 Bg7 Bf8 Bc6 Be7 Re4+ Kf3 Kb2 Qcd5 Bf2 Kg2 Bb6+ Kf1 Ka3 Bf8 Bdf6 Be7 Bfd4 Nc4+ Kb3 a1Q Bf2 Qc1 Bfd4 Ra8 Ba7 Qe3+ Ka2 Bf8 Bb6 Qec5 Re3 Na5+ Reb3 Bd7 Re8 Rb8 Ree7 Re8 b8B Bc8 Bb7 Qef5 Re4 Qfe6 Ba8 Re7 Bf6 Bg7 Ba1 Bgc3 Bb2 Bb4 Bg7 Ba3
6Bb/1B3bRb/1B3R1K/q2N1pP1/2QrnrrR/2RB1q2/3kN2R/B2n2b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 g4 Kc5 b4+ Kd4 e4 h5 e5 f5 e6 c5 g6 a5 e7 a4 e8B h4 d6 a3 g7 c4 b6 h3 d7 a2 b5 h2 b7 c3 b6 c2 Bb2+ Kc5 d4+ Kb4 d5 c1B d6 Be3 Qd5 Ne7 g8B Bg7 Ne2 Ra4 Nbc3 Rh4 Rc1 Bg1 Ba1 Na6 b8R Bh8 b7 Qa5 d8B Nc5 d7 Ne4 Bb6 Qa8 d8R Be6 g5 Bf7 Bc6 Rg4 Rf8 Bg6 Rbe8 Bh7 b8R Qa5 Qd3 Nd5 Re7 Ne3 Rg7 Nd1 Rf6 Qd5 Bb7 Qa5 Bb2 a1Q Re8 Qb1 Ba1 Qb3 Rc2 Qbd5 Rc8 Kb3 Ra2 Rd4 Rcc7 Kb4 Ra4+ Kb3 Qc4+ Kc2 Rc8 Qc6 Nd5+ Kd2 Rb4 Ng3 Kg2 f3+ Kh3 f2 Ra4 Ne4 Rcc7 Rg3+ Kh4 Rg2 Kh5 Rg4 Qb3 Qcc3 Kh6 Qd3 Rc3 Qf3 Bh3 f1R Qc4 Qg3 Rb4 Rff4 Bf1 Qf3 Ra4 Be3 Rg1 h1B Rg2 Bg1 Rh2 Ndf2 Nc1 Bg2 Bd3 Bf1 Rb4 Be2 Ra4 Bd1 Ne2 Bb3 Rb4 Nd1 Bd8 Nc5 Nb6 Rd7 Qf7 Rg2 Qd5 Re4 Qc6 Bf7 Qc8 Re3 Rg4 Re4 Rgh4 Rdd4 Nd5 Rf4 Bb6 Ne4 Qc4 Rgg4
6qn/nr4R1/2R1p1Pk/2bBBrRb/B2N2B1/2q1n2N/bRn2R2/Q2BK3 w - - 0 1 illegal: No possible last move
B5B1/1NrN2b1/NRP1BBQ1/2qB1q2/3np2N/1rrkb2r/K4R2/Nn1b4 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Kg6 Kb3 Kf5 f4 h5 c4 d5 g4+ Ke6 f5+ Ke5 f6 a5 g6 e3 g5 Ke4 f7 e5 b6 h4 c6 d4 c7 e2 c5 e1B g7 h3 b7 a4+ Ka2 h2 b4 d3 b5 d2 g6 a3 b6 Qg5 Qg4+ Ke3 Nf3 Qf5 Nh4 Qe4 Bg2 Ra7 Rf1 h1Q Rf2 Bf5 c8B Qg1 Bb2 d1R Be6 Nf6 g8B Bg7 f8N Nc6 b8N Rc1 b7 Bd2 Nfd7 Kd3 Na6 Rc3 b8N Be3 Nd2 Nd4 Rb1 Nd5 Nb3 Rc7 Na1 Qf3 Qg3 Bg4 Nc6 Qf5 Na5 Bd1 Nb7 Rh6 Nf3 Rh3 Nh4 Nb6 Bed5 Nc4 Bge6 Rb3 Bc3 Nd2 Rb2 Nb1 Qg5 Nc2 Qh6 Nd4 Bh1 Bh8 g7 Qgg5 g8B Bg7 Qg6 Qe7 Bc6 Qd6 Bhd5 e4 Nd8 Qdf8 Ba8 Qd6 c6 Qc5 Nb6 Nb5 Bf6 Nd4 Nd7 Rc3 Rb6 Rb3 Nc2 Rc3 Ka1 a2 Kb2 a1R Nb7 Raa3 Na1 Rab3+ Ka2 Qh5 Rf5 Qg5 Rf2 Qf5
1n3rBB/1pQ1N2N/1R1N1b2/2N2nB1/nbnN1r1B/2kqR3/2P4K/3b1q1B w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 h4 Kf7 f4 Kf6 Kf2 g5 Kg2 e5 a4 d5 a5 e4 c6 d4 a6 g4 a7 e3 c7 e2 h6 e1B h7 b3 h5 g3 h6 b2 Na3 b1N Nb5 d3 Nf3 d2 Ra6+ Nc6 Nd6 Qe8 Rb6 Nb4 Nd4 Qe6 Rh3 Rb8 a8N Bd7 c8B Be7 Nc7 Qe3 Na6 Be6 Nc5 Bf7 Be6 Bd8 Be2 Na3 Bf3 Nc4 Qe2 Qd3 Qe5+ Ke7 Kg1 d1N Bh1 g2 Re3 Bh5 Kh2 Ndb2 f6+ Kf8 f7 Ke7 f8N Nc6 f5 Na4 Qg3 Kf6 Ng6 Nge7 Bg8 Bb4 Bd2 Bd1 Qe5+ Kg5 f6+ Nf5 f7 Bf6 Ne7 Rf8 Be1 Nb8 Bf2 Rc8 f8N Kg4 Bh4 Re8 Qd5 Kf4 Qc6 Rd8 Qc7 g1Q+ Kh3 Qgf1+ Kh2 Bc3 Bf7 Rg8 h8B Rg4 h7 Bb4 Bg8 Rc8 Bg7 Rd8 h8B Re8 Nce4 Ke5 Nh7 Rf4 Bh6 Rf8 B6g5 Nd7 Ne2 Nb8 Nc5+ Re4 Nc1 Kd4 N1b3+ Kc3 Nd4 Rf4
2b1n1qb/kN2bN1r/B1n3n1/R2B3b/1B2nQP1/KpBR1r2/3B4/1N2N1N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 b5 d4 h5 Kd2 c5 Kc2 Kc7 Kb3 Kb6 g4 e5 a5+ Ka6 f6 e4 f5 h4 d6 h3 d7 e3 d5 e2 g6 e1N d6 h2 g7 Ka7 a6 Qb6 d8B Rh7 f7 Nc6 d7 Nce7 f6 Nc2 Qf3 Qb8 Qf4 Ng6 Ra5 Be7 f8N c4+ Ka2 c3 f7 Nf6 g8N Ne8 Ne6 Nd4 f8B c2 Ng5 Nc6 Bd2 c1B Nh6 Bb2 Nhf7 Bc3 N5f3 Bh8 Bc3 b3+ Kb2 b4 Ne1 Bd6 Bg5 Bc5 d8N Be7 Ka1 b2+ Ka2 Bb7 Kb3 Bc8 Ka4 b3 Nb7 Bd8 Bfb4 Be7 Nd2 b1B Ka3 Bbf5 Nb1 Bfd7 Qf6 Bf5 Bgd2 Bd3 Qf4 Bb5 Ne2 Ba4 Rg1 h1N Rg3 Nf2 Ng1 Ne4 Rd3 Qc7 Qh2 Qd8 Qf4 Rb8 Nc5 Rb5 Nb7 Rbh5 Be2 Rh3 Bf1 Rf3 Be2 Kb6 a7 Bb5 a8B Qd5 Nfd6 Qg8 Nf7 Bc4 Rd6 B4e6 Ba6 Ka7 Rd3 Bf5 Bf6 Nf8 Bfc3 Bg6 Nbd6 Bh5 B8b7 Ne5 Bd5 Nc6 Nb7 Ng6
2B3N1/B3P1bb/2N1KQ2/NR1NR2b/1rq1r1Bn/5nBn/2N1k2p/n3b2B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kb4 g4 a5 d4 h5 d6 f5 d7 c5 g6 c4 g7 c3 d5 c2 g5 f3 g6 f2 b6 h4 b7 f4 d6 h3 Ke6 a4 e5 f3 Qd4+ Kb3 Nc3 a3 Nd5 a2 Be2 f1N Be3 c1B Rb1 Kc2 b4 a1N b5 f2 b6 h2 Rb5 Nf6 g8B Nd2 g7 f1B Bg4 Bd3 Nf3 Qc7 Re1 Nc6 b8N Be7 b7 Na7 Nc6 Nfe4 b8B Bf6 Nce7 Bb7 d8N Qc4 d7 Nc8 Ndc6 Rh4 d8N Ncd6 Na5 Nf2 Ndc6 Nf5 Qf4 Bb2 Bea7 Bc3 Re3 Kd1 Ne1+ Nf3 Nc2 Be1 Bf7 Be4 g8B Bg7 Qg5 Qb3 Qf6 Qc4 Be8 Kd2 Bd7 Nh3 Bc8 Ba6 Bd6 Rb8 Bf7 Bb7 Ng8 Ba8 Rc5 Rb4 Rb5 Ne7 Bdb8 Bh7 Bg6 Kd1 Be4 Nf5 Re2 Nd2 Bh1 Nf3 Bf2 Bb7 Bba7 Ba8 Bg3 Bb7 Bh5 Re4 Bg4 N5h4 Kd7 Re3 e6 Re4 e7 Ba8 Ne5 Bc6+ Ke6 Be8 Re3 Bh5 Re2 Rd4 Nec6 Rf4 Re5 Re4 Nb8 Kd2 Nbc6 Ke2
N5R1/N3r3/1NpB1rn1/B2B3R/K2pB1nN/n2BQ1Pq/3b2b1/k1b2r1N w - - 0 1 illegal: No proof kernel
2kr2N1/K5B1/6n1/4Q3/NbP2R1b/1qr2RNb/ppBN1B2/N1BqBrn1 w - - 0 1 illegal: No proof kernel
q2N4/1nk1pK2/1R2b3/NB2b1qR/rRnBN2n/1rR1N2p/1P1Rr3/N4Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kc4 a5 g4 c5 d4 h3 f4 h2 d6 a4 Kd5 a3 f6 a2 b6 c4 b7 c3 f7 c2 f5 h4 g5 Rh5 g6 Na6 b8R Qe8 g7 Ra7 Nf3 Nc5 Bb5+ Kd8 d7 Rh7 f6 Ne4 Ke6 Ra5 d5 Rh8 Ng5 Ng3 Qf1 Rh7 Ne4 Ra4 Nbd2 Rc4 Nb3 Rc3 Rb6 Nh6 g8N Nhf5 Nh6 Kc7 Ng4 Rh6 Be3 c1Q Bd4 Nd6 Ne3 Bg7 f8R Nb7 Rg8 Bh8 Rg4 Nf5 Rg3 Rh5 f7 Be5 f8R Nfd6 Rf2 Nc4 Rd2 Rf5 Rg4 Rf2 Rb1 Re2 Na1 Qd8 Kf7 Rb3 Rf4 Qh8 d8N Bh3 Nc6 Qa8 Na5 Bc8 Rg1 h1N Rg5 h3 Rh5 Ng3 Rfh4 Nf5 d6+ Kb8 d7 Kc7 Rg4 Nh4 d8N Bd7 Rc2 Qd2 Rd1 Bc8 Rc3 Bd7 Nf5 Qg5 Rd2 Bc8 Ne3 Bf5 Nac2 a1R Rf4 Ra4 Na1 Bd7 Nc5 Bg7 Bf6 Na3 Rb4 Nc4 Bd4 Be5 Ne4 Be6+
R2bQ1bk/1Nnn3B/3N1NK1/3BnB1p/NRBr1P1B/N4p2/3r2q1/3r1r2 w - - 0 1 illegal: No proof kernel
RB5n/1BB1rpq1/P3RN1n/R2Nb3/5r2/BR1b1KbQ/BRn4p/2n1k3 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 g4 c5 e4 h5 a4 b5 d4 b3 e6+ Kd6 a5 c4 a6 h4 e5+ Kc7 e7 Kb6 e8R c3 d6 h3 g6 b4 g7 c2 d7 h2 e6 b2 d5 Kc5 g5 b3 e7 Kb4 g6 Nc6 d6 Qa5 d8B Rh6 d7 Qa3 Nf3 Rb8 Ng5 Ne5 Nc3 b1N Nh7 b2 Bc4 Rh4 Bc7 Rf4+ Qf3 Rb7 d8B Bf5 Ba2 Bd3 Nf6 Nh6 g8R Bg7 Bb8 Nd2 Bdc7 Nb3 Ncd5+ Kc4 Rd1 b1N Rd2 Qb2 Ke3 Na3 Qh3 Bh8 g7 Ng6 Rgf8 Qc3 g8R Bg7 Bb2 c1B Rb1 Nh8 Ra1 Re4+ Kf3 Nc2 Ba3 Rb4 Rg2 Bf4 Rb1 Re2 Rg5 Kd4 Rb2 Nc1 Re5 Ra4 Re6 Re4 Rd8 Bg3 e8B Rb4 Bc6 Re5 Bb7 Re4 Rb6 Re7 Rdd6 Rc4 R6b3 Rb4 Nh7 B7e5 Rg5 Kc4 Re6 Qd4 Kg2 Qg4 Rf5 Qg7 Nhf6 Kd4 Nb6 Ke3 Nbd5+ Kd2 Kf3 Rh4 Ne3 Bef4 Ra5 Bf2 Ba7 B2g3 Ned5 Be5 Ra8 Ke1 Bab8 Rf4+
R1r3k1/2p2b2/bB1p3q/1rBn1Q1B/b2b4/2rRBR2/R1nR1NP1/K2N2B1 w - - 0 1 illegal: No proof kernel
n1Rqq1Nk/5q2/4nr2/4qN1p/Br4N1/1bKN3p/1PR1RBQ1/bNR2R2 w - - 0 1 illegal: No proof kernel
2R2r2/1qB1R3/Rb2n2k/3Q2N1/rBq2ppK/1Bb1N1Pr/1BRRb2q/7B w - - 0 1 illegal: No possible last move
2B1B2R/P3Rn1r/2N1Bbbp/q3p3/2BN4/p1N1k2q/NB2N1b1/2Kr1n1Q w - - 0 1 illegal: No proof kernel
k1K3nQ/b1b1NR2/1p1N1N1B/q2R1Brr/R1N2r2/R1rRp2N/pP6/2n5 w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Be6 a5 Bc8 a6 Bb7 axb7 Qd6 Qc2 Qd7 Qd1 Qd8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 f4 a5 d4 h5 d6+ Kc6 f6 a4 Kf5 c4 Ke6 e4 f5 a3 f7 c3 d5+ Kc5 f6 h3 g5 h4 g6 c2 d7 h2 g7 h3 d6 Kc6 Qd4 Rh5 Bd3 Rg5 Nd2 Rf5 Nc4 Be7 f8N Ra6 f7 Raa5 Bh6 c1B Ng6 Rf4 f8R Na6 b8R Rg5 Rf7 Nb4 Ra8 Kb7 Ra4 Qa8 d8R Qa5 d7 Bd6 Ne7 Bb8 Bb1 Ka8 Bc2 e3 Bf5 Bd2 Rd1 Bc3 Rd3 Na2 Qe5 Nf6 g8N Nc1 Rd5 Be1 Qc3 Bg3 Qd4 Ne8 Qh8 a2 Ra3 Qa7 Nf6 Qa5 Ng4 Nf6 Rdd3 Ng8 Nf6 Kb7 Rd5 Ba7 Ra8 Rf2 Rdd3 Bc7 d8N+ Ka6 Kd7 Rf4 Ndc6 Kb7 Nd4 Bab8 Ra6 Ba7 Nb5 Ka8 Nbd6 Rfg4 Ne2 Rf4 Rhd1 h1R Ng1 h2 Nh3 Rhg1 Ra4 h1R Kc8 R1g2 Rd5 Rc2 R1d3 Rc3 Ra3 Qb5 R6a4 Qa5 Nf2 Rhh4 Nh3 Rhh5
r2b3K/p3qB2/1r1N1N1Q/k2p2R1/P5Nb/1RprB2b/1R1N2RR/2N1q2n w - - 0 1 legal: proof: h4 e5 c4 b5 g4 bxc4 d4 g5 dxe5 Bc5 f4 Bb6 h5 Nc6 h6 Bc5 fxg5 Ba3 g6 Nce7 g5 Nf5 Kd2 Ng7 hxg7 Bd6 Ke1 Bf8 Kd2 f5 Ke3 h5 Kd4 d6 e4 Kd7 a4 Kc6 b4 Kb6 e6 f4 e7 c6 e8N f3 b5 h4 e5 c3 e6 h3 e7 h2 Ra2 f2 Nd2 c2 Qh5 Ka5 b6 Bg4 b7 Rh7 b8R Nh6 g8N Bf5 g7 Be4 g6+ Bd5 Bc4 f1Q Ne2 Ng4 Rb3 Rh6 Nef6 Nf2 e8N Qe1 Ng4 Qg5 Rab2 Be7 Ng8f6 Bd8 g8R Bg2 g7 Bh3 Bf7 d5 Nd6 Qh4 Ke5 c5 Ke6 c4 Kf5 Rg6 Qh6 c3 Ke6 Bc7 Ke7 Bd8+ Kf8 Qg5 N2e4 Qe5 Be3 c1B Nd2 Qg5 Rb1 Ba3 R1b2 Bc5 Nc1 Bcb6 Rf1 Nh1 Rf2 Qe5 Rh8 Qe7+ Kg8 Bbc7 Rg2 Bb6 Bf4 Bf2 Be3 Bh4 Kh7 Ng3 g8R h1R Rg7 Rf1 Kg8 Nh1 Rh7 Rf3 Kh8 Rg5 Rg6 Re5 Rg5 Re4 Rhg7 Rb4 Rh2 Rb6 Rf5 Rf1 Rgg5 Rg1 Rff2 Rg3 Rfg2 Rf3 Bd4 Rd3 Bg1 Bg3 Be3 Bh4
3BR3/R2Bp2Q/R1RbnKN1/n1N1PbB1/r1b1Bqp1/3p4/2R1b2n/5Bk1 w - - 0 1 illegal: Other
nN1bN2N/n5p1/pBK5/2R1rn2/QB2N1pr/PR1BB2p/2bN4/B2k2q1 w - - 0 1 illegal: No proof kernel
1r2R2K/2r1B3/N2BR3/3P1kN1/rnb1r3/1Bb1Rb2/2n2NB1/3nNQ1B w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 h4 gxh4 b4 a5 bxa6 Qd6 b5 Nh6 a7 Qa6 bxa6 Ng8 Ke2 Kf7 Kd3 Kf6 Kd4 h5 f4 h3 g4 h4 g5+ Kf7 Ke5 c5 d4 c4 f6 Kg6 f7 h2 d6 h3 f5+ Kh7 g6+ Kg7 d7 c3 d8N e6 Ra3 c2 Re3 Bb7 f6+ Kh6 g7 Kg6 Nd2 Bc5 f8R Rh6 f7 Rh4 Ngf3 Nh6 g8B Bd5 Ba3 c1R Ne1 Nf5 Ne4 Bc4 Nf2 Bb4 Bg2 Bc3 Bd6 Rf4 Rg1 h1B Re8 h2 f8B Ra1 Qd3 Ra4 Nf7 Rh4 Qe2 Rh7 Ng5 Rc7 Bfe7 Nc6+ Ke4 e5 Qf1 Rac8 a8B Rb8 a7 Nb4 Bc6 Rbc8 a8N Rb8 Kf3 e4+ Kf4 Rd8 Ke5 Rb8 Bh3 Bf3 Bg2 h1N Bcd5 Rc6 Nc7 Rc5 Na6 Rc7 Rd3 e3 Be4 e2 Re3 Kh6 Kf6 Kh5 Ba8 Kh6 Re6 Ne3 Bd5 Kh5 Kg7 Nec2 Kh8 Kh4 Re3 Kh5 Bc6 Kg6 Ba8 Kf5 Bf7 Ng3 Rh1 Ne4 Rh6 Rd8 Re6 Rb8 Nd1 Nf2 Bd5 Nfd3 Nf2 Nb2 Bh1 Nd1 Bg8 Bh5 Bdg2 Bf3 R6e4 Bd3 Bb3 Bc4 Re6 Bd2 Ned3 e1R d5 Re2 Ne1 Bc3+ Kg8 Rd2 Kh7 Rd4 Kh8 Re4+
2Bn3N/2b3Rn/pB2R1RK/1q2P1R1/4R2b/Q2r2NN/1BNkrp2/1r6 w - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 e5 axb5 h5 f4 exf4 g4 d5 gxh5 a6 c4 Bf5 cxd5 Nc6 b6 Rc8 b7 Na7 b8R Be4 Ra8 Bg2 Bxg2 Rc7 Bf1 Rc6 Kf2 Kd7 Kf3 g5 Kg4 f6 e4 f3 h4 f2 d4 Ke7 e5 Rd6 h6 f5+ Kh5 f4 c6 g4 h7 g3 c7 f3 c8N+ Kf7 Qd3 g2 Qa3 Nb5 Ne7 Qd7 Nf5 Qc6 Ng3 Qc8 Ra7+ Rd7 d6 Ke6 d5+ Kf7 Bb2 Nc3 Nh3 Rc7 d7 g1B d8B Ne2 d6 Ke6 d7 Rc3 Bb6 Kd5 d8R+ Kc4 Rg7 Rd3 Rd6 Be7 Rdg6 Nf6+ Kh6 Qb8 h5 Nd4 Bg2 Rg8 h8R f1R Rhh7 Bf2 Rg1 Bd6 Re7 Rc1 Rhg7 Nh7 Ree6 Bc7 Re1 Nc6 Re4+ Bd4 Bf1 Nd8 Be2 Re1 Bd1 f2 Ba4 Ree3 Bd7 Re2 Bc8 Qb7 Rg5 Qd5 R7g6 Qb5 Rf5 Qb3 Rgg4 Nf8 Nh1 Qa4 Qa2+ Qb3 Na3+ Kb4 Nc2+ Kc4 Rag1 Nh7 Qa3 Nf8 Rf7 Rg5 Rg7 Qb5 R4g3 Ng6 Kh7 Nf8+ Kh8 Rg6 h6 Rg4 h7 Rg5 Ree3 Bc5 R3g2 Be7 Re4+ Rd4 Kg8 Rg3 h8N Bh4 Rf6 Rge3 Re6 Re1 R2g4 Rb1 R4g6 Ree1 R1g5 Re2 Rge7 Nh7 Kg7 Rc1 Ng3 Rb1 Qa1 Kd3 Kh6 Rd6 Reg7 Kd2 Qa3 Rd3
6b1/4bnRp/3QQQ1P/2B2r1k/K2Bb2p/Nq3Nq1/R2QQ3/4NQn1 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 b5 cxd5 e5 fxe5 g6 b4 a4 h5 a3 e3 Ra6 h6 Nc6 Be2 Ra5 bxa5 b4 a6 b3 Bh5 Nb8 axb3 gxh5 b4 a2 b5 Qf6 b6 Qc6 Na3 Qb7 Rb1 a1Q axb7 Qd4 Ra1 Qe4 Nb1 Qh4+ Kf1 Qe7 Ke1 Qd8 g4 c5 d4 f5 Kd2 Kf7 Kc3 Kg6 Kb3 h4 g5 c4+ Ka4 c3 e4 c2 d6 f4 e6 f3 d5 f2 e7 f1B e8N Be6 d7 Beh3 e5 Be7 e6 Bf6 e7 Bd3 d6 Na6 b8Q Bdf5 b7 Nb4 Nc7 Na2 Ne6 Qe8 Nc5 Qf7 e8Q Bc3 d8Q Bf6 d7 Bfg4 Ba3 c1Q Qbd6 Qe3 b8B Qe1 Nf3 Bg2 Qee2 Qe7 Rg1 Nc1 Ra2 Qe3 Ba7 Ne7 Nd3 Qg3 Qdf1 Nc8 Nde1 Be6 Bd4 Be7 Bac5 Kh5 g6 Rf8 g7 Rf5 Na3 Bg8 Q8b6 Qe6 d8Q Qe3 Qf6 Nd6 Qc6 Nf7 Qcd6 Nd3 Qa5 Nf4 Qc3 Nh3 Qcd2 Qg4 Nh2 Be4 Nhf3 Qgf4 Rg6 Qg3 Rg4 Ng1 Rg6 Nh8 Rg4 Bgd5 g8Q Nf7 Rg7 Qb3+ Ka5 Ne5 Qc8 Bg8 Qce6 Qb2 Ka4 Nf7 Qa5 Qb1 Qad2 Qb3+
8/1p1q3b/1qPNp2Q/3Q4/nN1QNbrr/k3BK2/1R2BNN1/1R1rN3 w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 h5 g4 b3 gxh5 Nc6 axb3 Rb8 b4 Na5 bxa5 Ra8 Ke2 d5 h4 Kd7 f4 Kc6 c4 g5 f6 g4 a6 d4 f5 e6 h6 g3 f7 g2 h7 d3+ Kf3 d2 h5 Qe7 f6 Qd7 h6 Qd4 a7 Be7 f8N Bd7 f7 Qe5 Nh3 g1R Nc3 Rg5 Ng6 Bf8 Rb1 Nf6 Rh2 Bc8 Be2 Bg7 f8Q Bd7 Nh4 Ng8 Nf2 Rg2 Nce4 Rc8 a8N Rg6 Nb6 Qd4 Nd5 Rb8 Ng2 Re8 Ne1 Rd8 Qf5 Be5 Nb4+ Kc7 c6 Kb6 c7 Ka5 c8N Ba4 c5 Rg4 c6 Ne7 Qf4 Qb6 Ncd6 Nd5 Qe3 Bg3 Qd4 Bf4 Qb3 d1Q Be3 Nc3 Qbd5+ Bb5 Rg2 Ka4 Rh2 Rhf8 h8Q Ka3 h7 Na4 Qhg7 Rf7 h8N Bd3 Qh6 Rh7 Ng6 Rhh8 Nh4 Bc2 Ng5 Bh7 Nhg2 Qd3 Q4c5 Qd4 Nge4 Qg7 Qcd4 Qd7 Rh3 Rh4 Rh1 Rhg8 Rb2 Rgg4 Ned3 Ra8 Rhb1 Ra5 Nde1 Rc5 Qhg5 Rc1 Qh6 Rd1
7k/Bn2Pb2/p1R2qR1/1BQBbN1N/7p/b5Bp/3Bpr1Q/2B1Q2K w - - 0 1 legal: proof: e4 d5 a4 g5 d4 e5 h4 gxh4 c4 f5 exf5 b5 cxd5 e4 axb5 a6 b4 Bh6 b6 Ke7 b7 Nd7 b5 Ne5 dxe5 Bf8 b6 Ra7 bxa7 Ke8 b8B Kf7 a8B Kg7 g4 h5 f4 c5 Kf2 c4 Kg2 c3 e6 c2 d6 e3 f6+ Kh7 d7 Bh6 f5 Bf4 g5 Qb6 d8B Nh6 g6+ Kg8 f7+ Kg7 f8B+ Kg8 g7 Qd6 f6 Qc7 f7+ Kh7 Bd6 Qd7 f8Q Qc7 Na3 Qa5 Ba7 Qb6 Bb5 e2 Nc4 Bg5 Bd5 Bd7 Ne3 Qc6 Nh3 Rg8 Nf5 Qc7 Qe1 Qb6 Bg3 Bf4 Rg1 Be8 Bg5 Be5 Kh1 Bf7 Nf4 h3 Qc5 h4 e7 Rf8 Nh5 Qf6 Bgd2 Kg8 Ra4 Kh7 Rc4 Kg8 Ne3 Nf5 Rg2 Nd6 Rc3 Kh7 g8Q+ Kh6 Qg5+ Kh7 Qf4 Nb7 Nf5 Kh8 Rg1 Rg8 Qff2 Rg4 Qh2 Rf4 Bf2 Rf3 Rg6 Rf4 Bg3 Rf2 Qd6 Be6 Rc6 Bf7 Bb2 c1B Ba3 Bcb2 Qc5 Bbd4 Bac1 Bb2 Be4 Ba3 Bg2 Be6 Bd5 Bf7
q2RNn1K/3R4/r6B/Qn2RR2/2k1BNQ1/1r1R4/1b1B2Pr/n2qRbq1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 h5 f4 b3 d4+ Kb4 g6 c5 d6 e6 d7 c4 f6 h4 b6 c3 g7 h3 d5 h2 b7 b2 d6 c2 f5 Kc5 f7 Qa5 d8Q Qb4 d7 Qb3 f6 Qa3 Nh3 Qb4 Na3 b1R Bd2 c1Q Qg4 Ne7 g8R Nf5 Rg5 Nd4 Bd3 Bg7 f8R Qa5 Nb5 Ra6 Ra3 Qg1 Nc7 Nb5 Be4 Kc4 Rd3 Rb3 Ne8 Qd1 Re1 h1Q Nf4 Qg1 Qb6 Rh2 d8R Bh8 Rg7 Qa2 f7 Qa3 Kf6 e5 Kg6 Nd7 b8R Bb7 Bc6 e4 Qa5 e3 Rh7 Bf6 Be4 e2 Rh5 Bc6 Rb7 Bb2 Re5 Bd5+ Kg7 Qaa1 Rh8 Nf8 Rh5 Be6 Kh8 Bf5 Rf1 e1N Rbd7 Nc2 Re1 Bh7 Rf5 Bg6+ Qh4 Bh5 Qg3 Be2+ Qh4 Bf1 Qh3 Nh7 f8B Qa2 Qh5 Na1 Bh6 Nf8 Qg4 Rc6 Qc7 Qa8 Qa5 Ra6
3K3n/nB4B1/4BrR1/R2PbR1b/4R1NN/n3NnN1/Rq1k1b1r/5n1Q w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 h5 f4 h4 d4+ Kb6 g4 c5 d6 c4 g6 c3 g7 c2 d5 Kc5 d7 h3 Ke6 b3 g5 Kb4 b6 b2 g6 h2 f6 Ra2 b7 Nc6 b8R+ Bb7 f7 Ra7 f5 Ra3 f6 Rc3 Ra5 Qe8 d8R Rd3 Rba8 Nh6 g8B Na7 g7 Bc6 Rd6 Qb8 Na3 Kc3 Nc4 b1N Ne3 Be8 Qf3 Rh7 Bb2+ Kd2 Ne2 c1B Ng3 Na3 Rc6 Rd4 Ba6 Rf4 Re1 h1N Bb7 Rf5 Ba1 Bb2 Qh5 Be5 Qh3 Nf2 Qh1 Nfg4 Rd6 Nh2 Rda6 Ba4 Rd6 Bc2 Kd7 Bd1 Rda6 e6 Bb2 Bfd6 f8R Bh5 f7 Nf1 Rb6 Bc5 Ba1 Nc8 Kd8 Rf6 Bb2 Nc2 Ra2 Na3 Ra5 Rh8 Rc1 Bcd4 Rc4 Bc5 Re4 Rh7 Ng2 Bf2 Ne3 Rh8 Re8 Rh7 f8N Rh8 Ng6 Na7+ Bc8 Rh7 Nh4 Qb7 Rf8 Nf7+ Ke8 Nh8+ Kd8 Rhh6 Rba6 Qb3 Bb7 Qc2 Ba1 Qb2 Bf7 Rh7 g8N Rf4 Nhf5 Bc7+ Ke8 e5 Rc4 e4 Ng2 e3 Ngh6 e2 Ng4 e1N Re4 Nf3 Nfe3 Qc2 Bg7 Qb2 Rg6 Be5 Be6 Rf7 Kd8 Rf5 Nf6 Bg4 Rf7 Rh2 Nh4 Bh5 Nfg4 Rg5 Rh6 Rg6 Rf5 Rf6 Rg6 Kc3 Bd7 Kd3 Be6 Kd2
1k2qbn1/NP6/2RN1nb1/BQ4rn/1BrN3n/1NR1q2n/2B1K3/RB1B4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 h5 d4 e5 f4 a5 b6 c5 f6 e4 d6 a4 b5 e3 g6 a3 b7 h4 g5 h3 b6 a2 f5 h2 f7 e2 g7 c4 g6 c3 d5 c2 f6 Nc6 b8Q Na7 Qd4 Nb5 Nd2 Ra3 Ngf3 Nh6 g8B Rb3 g7 Rb1 Nb3 Na3 Qe3 Nc4 Bh7 Na5 g8B Rb2 Bd2 c1N Bb1 Rh7 Nfd4 Nb7 Ba5 Rg7 Bgh7 Qe8 Bhc2 Rg5 Bg2 Ng8 Bf3 Kd8 d7 Nc5 Rg1 h1N Rg3 N1d3+ Kd2 e1N Bd1 Qe5 Ke2 Nhf2 Rf3 Ng2 Rh3 Bh6 f8B Nh4 f7 Nce4 Bfb4 Qe8 f8R Nef6 Rf3 Nh3 Rf7 Nh7 R7f6 Bf8 Rc6 Nhf6 Qb7 Nh5 Qa6 Ndf2 Qb5 Ng4 Rg3 N4f6 Rf3 Bd6 b7+ Bc7 Rb6 Bd6 Rg3 Kc7 d8N Bd7 N8c6 Bf5 Na7 Bg6 Rc6+ Kb8 Rf3 Bf8 d6 Bf5 d7 Bg6 Nd2 Rb3 d8N Rc3 N2b3 Rc4 Nf7 Nh6 Bd3 Nhg8 Bbc2 Rg3 Nd6 Rg5 Rc1 a1Q Rg3 Qa4 Ra1 Qa3 Bb1 Qc1 B3c2 Qf7 Qd2 Qd7 Rc3 Qe8+ Qe3 Qcxe3+
k2qR1q1/2K3bn/br3B2/qbB1N1R1/2RN3n/r3NP2/R1Rq2B1/Q4N2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kd7 Ke3 g5 Ke4 c5 Ke5 Kc7 d4 Kb7 h4 g4 b6 e6 d6 g3 h6 b3 h5 g2 d5 c4 h7 b2 f6 c3 d7 c2 h6 Qe7 d8B Qd7 d6 Qe8 f3 Ra3 d7 Bb4 f7 Ne7 f8N Nd5 Rh4 Ra7 Ra2 Qf7 Na3 b1B Be3 c1Q Ne2 g1Q Nc2 Ra8 Ng6 Bc3+ Kd6 e5 Ng3 e4 Bc5 e3 Bg5 e2 d8R e1Q Ne3 Bf6 Rg8 Bd3 Ne5 Bb5 Rc4 Ne7 Re8 Qcc3 Qa1 Nd7 Rg8 Kb8 b7 Ra3 Rg7 Rd8 h8R Qa5 h7 Ng6 Re8 Qef2 h8R Qfh2 Rh5 Nh4 Bh3 Qgg2 Ngf1 Nf8+ Bd7 Nh7 Rcc2 Ng6 Rh4 Qc4 Rd4 Nh4 Rg6 Bh8 Bf6 Qg4 Rg7 Qhd2 Rg6 Qe4 Rg4 Qg8 Rg5 Qdb4 Rdc4 Bg7 Re7 Rf8 Bh3 Rf7 Re8 Qd2+ Bd4 Rc7 Bg2 Rc5 Rh5 Ka7 b8N Ka8 Rg5 Rc7 Nbc6 Rb7 Qc3 Qed3 Qa1 Rb6 Kc7 Qe4 Bc5 Qed5 Bd8 Bb7 Nd4 B7a6 Bf6+ Qd8+
3R1qq1/B4q2/n3KNR1/nN1Q2P1/Nk1BR1R1/2N3R1/5Bbr/1n2qb1r w - - 0 1 illegal: No possible last move, all moves rejected
b1KN1N1q/2b1n3/1rPR1Br1/2Rb2QB/1N1Nb1N1/R3b3/3k4/1b1N2Qn w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 e4 c5 exf5 b4 d4 cxd4 a3 Qb6 axb4 Qc7 b5 Qd8 Ke2 Kf7 Kf3 h5 Ke4 d5+ Ke5 d3 c4 e6 g4 d2 f4 d4 a6 h4 a7 d3 g6+ Ke7 f6+ Kd7 b6 Kc6 c5 Kb5 g5 Kb4 f7 h3 b7 h2 c6 Nh6 f5 Qd7 f6 Bc5 f8N Be3 g7 Ng8 g6 Na6 b8N Ne7 g8N Qe8 Kd6 e5 f7 e4 g7 Bb7 Nf6 Rg8 Bb2 Nc5 Kc7 Kc4 Qh5 d1B Ra5 Bf3 Ne2 d2 Nd4+ Nd3 Ng4 d1B Be2 Bc2 Nc3 Bb1 Rd1 h1B Na6 Rb8 Qg5 Ba8 Nb4 Rb6 Nfe6 Bfg2 Bf3 Nf2 f8N Qh5 Nd8 Qh8 N4e6 Kb3 Rd6 Kc4 Rc5+ Kb3 Nba2 Kc2 Nd4+ Kd2 Bd1 Bf3 Nb4 Bhg2 Kd7 Nh1 Kc7 Be2 Ba1 Bc4 Be2 Bd5 Nd1 Bf4 Kd7 e3 Bf3 e2 Kc7 Bb7 a8R e1B Ra3 Ba8 Be2 Bf2 Kd7 Nf5 Kc8 B2e3 Bb2 Bge4 Ba1 Qh5 Bb2 Rh8 g8Q Rh6 Q8g7 Ne7+ Kd7 Rf6 Nh2 Bbc2 Qg1 Bg6 Nb5 Bgf5+ Re6 Be5 Q7g5 Ng6 Kc8 Qh8 Bh5 Bb1 Ng4 Bfe4 Ba1 Bb8 Rd6 Bc7 Be5 Re6 Nd4 Ne7+ Kd7 Nf5 Kc8 Rg6 Bf6 Ne7+
Q4RB1/4B2n/P2Q3p/B4N1K/1r5B/2B1nb1b/bQ1B1q1R/2rr1kNn w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 g3 h4 g2 h5 Bg7 e5 Bf6 Nh3 g1R exf6 Rg6 hxg6 Nc6 Ng1 Nb8 Kf2 Kd7 Kg3 Kd6 Kg4 Kc5 a4 Kd4 g7 e5 a5 c5 a6 b5 d6 h6 f7 e4 f8Q b3 d7 c4 f6 b4 f7 e3 f5 b2 f6 c3 Rh2 b3 Qe2 c2 Na3 b1B Nc4 b2 Nd6 Ba2 Kh5 Ne7 g8Q Qb6 d8B b1B Nf5+ Ke4 d4 Nd5 Bh3 Nd7 Bd2 c1R Qd6 Rb8 f8B Qb2 f7 Rb4 Qf2 Kd3 Bh4 e2 Bfe7 e1N f8B Ne3 Bg7 Nf8 d5 Nh7 Bgc3 Be6 Qc8 Rd8 Qa8 Bc2 Rb1 Bd1+ Bg4 Qc2 Rb3 Bf3 Rb2 Ra4 Rb8 Rd7 Rf8 Rb4 Qdb8 Rd8 d6 Qb2 Bg7 Qd4 d7 Qf4 Qg2 Qg3 Bgc3 Qf2 Nh3 Ke2 Qd6 Re8 d8B Nd3 Ba5 Rd8 Qgg3 Kf1 Qge5 Qe1 Ng1 Nf2 Qg7 Nh1 Qgd4 Qf2 Q4b6 Bb7 Bd1 Bg2 Bb3 Bh3 Qbb8 Bd5 Qbb7 Bc6 Bg8 Bf3+ Kg6 Rd1 Qdd7 Rb6+ Bcf6 Bhg4 Qd6 Bh3 Bd4 Rb8 B4c3 Rbb1 Qbb4 Rbc1 Qb2 Bfg2 Kh5 Rb4 Qf4 Be4 Qd6 Bf3+
k1r3Rn/Bq1R3R/4rr2/1n3NRN/pNb4P/1N3RB1/B1nQ4/q1K1b3 w - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 h5 a4 f5 exf5 d5 axb5 d4 g4 hxg4 c3 Na6 cxd4 Nb8 d5 Rh5 Ba3 Rh6 Bc1 Rh8 f4 Kd7 d4 Kc7 Kd2 Kb7 b6 g5 f6 e5 f5 a5 d6 a4 d7 e4 d5 g3 d6 g4 f7 g2 f6 g3 Bc4 Ra6 c6+ Ka8 c7 Rh4 b7+ Ka7 Ba2 Be7 f8R Rc6 f7 Na6 b8B+ Ka8 Ne2 g1Q Ba7 g2 Ng3 Rc3 Nh5 Nh6 Rg8 Rf4 f8R Bb7 c8N Qdb6 d8N Rf6 d7 Nc7 Nd6 Nf7 Nf5 Bb4 Nc6+ Bc8 d8R Qb7 h3 Nh8 Rd7 Nb5 Rh2 Ba5 Nb4 Rc4 Qe1 e3+ Kd1 Re4 Nd2 Ree6 Nb3 e2+ Kc2 Qd4 Bf4 g1R Qd2 e1N+ Kc1 Rg4 Rg2 Nc2 Bg3 Qe5 h4 Rc4 Rb1 Qa1 Rg5 Rc3 Rf2 Rc7 Rf3 Rcc6 Rh7 Rc5 Rff7 Bd7 Rfg7 Rc8 Rg8 Bc6 Rd7 Bd5 Nd3 Bb6 Nbc5 Nba3 Rc7 Qa6 Rf7 Bc4 Rfg7 Qe5 Rb3 Qd4 Nb4 Qb7 Rh7 Nb5 Rbd3 Qe5 Nb3 Bf2 Rdd8 Be1 Rdd7 Qa1+
4RnKq/bNr2BRR/6QB/3q1B1P/2Nn2rp/bq6/1N6/rN2Bk1N w - - 0 1 illegal: No possible last move
kNNq4/BRr2bR1/4r3/q1R2bP1/1n1R2np/q2bQ3/B1N1B1R1/4B1K1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Bc5 Rh2 Bb6 Rh1 Ba5 bxa5 Kf8 Ra2 Ke7 Ra1 Ke8 Kf2 Kd7 e4 h5 d4 f5 g4 c5 b6 a3 b7 Kc7 d6+ Kc6 a6 h4 e5 f3 e6 c4 a7 f4 d7 c3 e7 a2 e8R c2 g6 Rh7 d5+ Kc7 g7 Rh5 g5 Qe7 d8B+ Kd6 Nd2 Qe4 Re5 Bg4 Qe2 Nc6 b8N Nce7 Ba5 Nc6 Rb1 a1Q Qe3 Qea4 Ne2 Nh6 g8R Nb4 Nd4 Bf5 Be2 Ng4+ Kg1 Qe8 Rh2 Rh6 Rg2 Re6 Rg7 Qd8 Nc4+ Kc5 Bd2 c1Q+ Be1 Qca3 Nb6 Q1a2 Nc8 f2+ Kh1 f1B d6+ Qd5 d7 f3 Bc7 f2 Rb3 Qe7 d8R Qf6 Rdd7 Qe7 Rd3 Qd8 Nc2+ Kb5 Rd4+ Kc5 Bc4 B1d3 Ba2 f1B Kg1 Bc4 Ba5 B1d3 Bb6+ Kb5 Rb7 Qc5 Na6 Kc6 Red5 Rb8 a8B Qca5 Ba7 Bb3 Rbb5+ Rb7 Re5 Re7 Nb8+ Kc7 Rb6 Bf7 Rbb5 Rb6 Bf3 Rbe6 Be2 Rd7 Rbc5+ Kb7 Rb5+ Ka8 Rb7 Rde7 Rc5 Rc7
1b3Qq1/R1r4N/b2rkb2/QQ1p4/1n1Q1KN1/4P1Q1/2nQ1qr1/N1BB2R1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 axb5 e4 d4 cxd4 f3 Ba3 fxe4 Be7 e5 Bf8 Kd2 Ke7 c4 d5 h4 f5 b6 g5 h6 g4 h7 g3 b7 g2 e6 d3 Ke3 d2 c5 Nf6 c6 Qb6+ Kf4 Qa6 h5 Ne8 c7 Nc6 b8Q Na7 h6 Qb7 a6 Kf6 e3 Qb5 e7 Nd6 e8N+ Ke6 Be2 Rg8 h8Q Nc6 h7 Nc4 a7 Nb4 Nf3 g1B Qb2 Bg7 h8Q Na3 Ne5 Ba6 Nf6 Nac2 Na3 Qe8 Nh7 Bf6 Ng4 Qd8 Qe1 d1R Qg3 Bh2 Qb5 Rg7 Rf1 Qg8 Rg1 Rd2 Bd1 Rd8 a8Q Rg2 c8Q+ Rdd7 Qcb8 Rd6 Qf8 Rc7 Qd4 Bb7 Qaa5 Ba6 Kf3 f4 Qd2 Bg5 Qhd4 Bf6 Nh6 Bg7 Kg4 f3 Kf4 f2 Ng4 Bf6 Ra2 Ne1 Nc2 f1Q+ Nf2 Qe2 Na1 Nec2 Ng4 Qf2+ Bf3 Qf7 Qab6 Bc8 Ra7 Rc4 Q6a6 Rdc6 Qaa5 Bg7+ Kg5 Qg8 Qgb8 Ba6 Bd1 Bf6+ Kh6 R4c5 Qbf4 Rc4 Qf3 Bb8 Qg3 Rd6 Kh5 Bg7 Kg6 Rc7 Kg5 Qe2 Kf4 Bf6 Qg7 Qe1 Qf8 Qf2+
1K1NQ1q1/rqRRR2p/8/1r2nn1Q/kBRPqR2/4b3/b2B1Nn1/6NR w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 c4 f4 a4 b4 a3 g4 c3 d4 a2 d6 e6 f6 c2 f7 Na6 g6 Qc7 b6 Kc6 g7 Be7 f8R Nh6 g8R Nf5 g5 Ng3 f5 Qa7 f6 Bd8 g6 Nh5 g7 Be7 d7 Qb7 d8N+ Kd7 f7 Ra7 b5 Nf4 Bg2 Nb8 Nd2 Bg5 Qh5 Qa8 Bf3 Ng2 b7 Be3 b6 Nh4 Rb1 a1Q Rb4 Qb1 Rc4 Nf5 Ne4 Qb3 Bd2 c1Q Nf2 Qcb1 Re8 Q3a2 f8R Qe4+ Kf6 e5 Re7+ Kd6 Kf7 Nc6 Ke8 Qb3 b8R Be6 b7 Qb5 Rc8 Qbd5 Rff7 Qb8 Rgf8 Qa8 g8Q Qb8 Qg2 Rg8 Ng4 Rg5 Nf2 Qg4 Rg8 Qc5 Qf1 e4 Rb4 Nh4 Qb5 Qcf5 Rgg7 Ba2 Rc4 Bf4 Ne6 e3 Rg6 e2 Rff6 e1N Rf8 Na5 Kd8 Be3 Bc6 Qe5 Bg2 Qf3 Rf4 Qc6 Bd5 Neg2 Qa4 Qa8 Rgf6 Qe4 b8B+ Rc7 Rh6 Re5 Ba7 Nf5 Bb6 Ra7 Rf6 Qb5 Bb7 Qbc6 Bc5+ Kd5 Bcb4 Qb8 Ba6 Qcb5 Bb7+ Nc6+ Kd7 Qa8 Rc7 Qg8 Nd8 Qc5 Rc1 Qc4 Kc8 Qb3 Bdc3 Kc4 Rd6 Rc5 Rc2 Ne5 Qae8 Ne1 Rdd7 Kb5 Ngh3 Ka4 Bd2 Ng2 Ng1 Qbd5 Kb8 Rb5 R2c4 Qxb7+
Q3N1b1/3P4/3b1Rbr/1RK3qN/4Np2/3Nkr1Q/BRnnN1q1/NB1r4 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 Nh6 c4 Ke7 cxd5 Ke8 Ba3 Qf6 axb5 Qd6 b6 Ng8 b5 Qd8 Bb4 axb4 Kf2 Kd7 Ke3 f5 Kd4 g5 e4 f4 h4 b3 b7 g4 e6+ Kd6 e5+ Ke7 h6 c6 b6 b2 h5 g3 d6+ Ke8 d7+ Ke7 h7 g2 h6 Qc7 d8N Na6 b8Q Qa7 Ne2 g1R Qb3 Bb7 Ra5 Rg4 Na3 b1B Qh3 Ba2 Rb5 Rg5 Nc2 Bb3 Na1 Nb4 Kc5 Ba4 d4 Rg1 d5 Nf6 d6+ Ke8 e7 Qa5 Ne6+ Kf7 e8N Kg6 N6g7 Bc2 Nh5 Bg7 d7 Kg5 e6 Bg6 e7 Nc2 Bg2 Rd1 Be4 Qa2 Bf5 Ra3 Qa8 Rf3 Re1 Ba6 b7 Qa5 b8R Ne4+ Kc4 Nd2+ Kc5 Be5 Be6 Bc8 Ba2 Ba6 Rh1 Qd8 Rb2 Bc4 R8b5 Rf8 h8N Rf6 h7 Bg8 Qf1 Qa5 Nf7+ Kf5 h8N Ke4 Nfd6+ Ke3 Qh3 Qd8 Ne4 Re6 Neg7 Rd6 e8B Qg5 Bef7 Qg2 Ne8 Rf6 Kb6 c5+ Bfe6 c4 Kc5 c3 Nf7 Qg5 Bf5 Nd4 N4g3 B6h7 Qh4 c2 Nc3 c1Q Bfb1 Re1 Nhg7 Nc2 Nge4 Bc7+ Ne5 Rg1 Qh2 Qf1 Ne2 Qfg2 Qh5 Bf5 Nd3 Be5 Qh8 Re1 Rh6 Rd1 Rg6 Ra6 Qh3 Rb6 Nh5 Re6 Rg7 Rh6 Rf7 Bg6 Rf6 Bd6+
1Qr1K3/R3BQq1/1r5p/PrRRbRr1/4b1n1/N7/Bb2BR2/k2N2Rn w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 Ke2 Kd7 Kd3 e5 Kc4 e4 Kb5 e3 f4 h6 g4 b6 a4 e2 f6 e1B g6 b3 f5 b2 c6+ Kd6 g7 Ke5 g5 Ra7 f7 Nd7 g6 Bc5 f8R Ra8 c7 Bd6 Kc6 b5 f6 b4 f7 b3 Nh3 Ndf6 Rg1 Ba6 c8R Qe7 Be2 Rh7 Na3 b1R Nf2 b2 Qb3 Kd4 Nd1 Bb8 d6 Bd3 d7 Bc3 Bg5 Be5 Qb8 Ng4 Rc7 N8f6 g8B Rh8 g7 Ra5 d8R+ Rd5 a5 Ne4 Ra7 Nef2 Rd6 Qf6 Kd7 Nh1 Ke8 Be4 Rc6 Rb5 Rc5 Rc1 Ra2 b1R Bh4 Qg6 Be7 R1b3 Rc2 Bb2 R2c3 Rb6 Rf3 R3b5 Rf5 Rc3 Rh5 Rh3 Rf5 Rh5 Rf2 Rg5 Rf5 Bh2 Rfe5 Bf3 Red5+ Ke4 Kd8 Qe6 Bh7+ Qg6 g8Q Bhe5 Qg7 Kf4 Qg8 Qg7 Bb1 Bg2 Ba2 Ke4 Re8 Bf3 f8R Bg2 Rf2 Bf3 Nc3+ Ke3 Qe6 Be4 Ref8 Rg8 Kd7 Rh8 R8f4 Rc8 Rf5 Bf6 Rde5 Kd2 Red5+ Bd4 Nab1+ Kc2 Qf7 Be5 Nd1+ Bbc3 Na3+ Kc1 Ne3+ Kb2 Nd1+ Ka1 Qf8 Bb2 Qf7 Rcc6 Ke8 Rc8+
1nQ1Q3/KQ1Q4/p1Nr1k2/6b1/bn3qB1/N1rR4/b4rPQ/QB1B1Rr1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 h4 g5 hxg5 c5 b4 Ke7 b6 Nh6 b5 Ke8 Ba3 Ng8 Bb4 cxb4 Kf2 Ke7 Ke3 f5 Kd4 h5 Kc5 a6 e4 f4 d4 f3 b7 b3 b6 f2 d6+ Ke6 g6 h4 g7 b2 d5+ Kf7 e6+ Kg6 e5 h3 e7 h2 e8B+ Kg5 e6 Ne7 g8B Nf5 e7 Be6 d7 Ng3 d6 Kf5 Bh5 Rh6 e8Q Qg5 d8Q Bc8 Bb3 Rh7 Nf3 Re7 d7 Qg7 Na3 b1B Bd3+ Kf6 Bg4 f1R Nd4 Qf7 Nc6 Rf2 Rf1 Ba2 Bb1 h1R Qe1 Rg1 Bbd1 Bg7 Qc7 Qf8 d8Q Bd7 Qcc8 Nh5 Qdc7 Bh6 Qd6+ Bde6 Qdd7 Bg5 Qa5 Bab3 Ra2 Bg8 Rd2 Nf4 Rd3 Nd5 Qe1 Qf7 Qc3+ Re5 Qa1 Ba4 Nb4 Nc6 b8Q Ra7 Qbb7 Nb8 Nc6 Nb4+ Qd5 Ra8 Qbd7 Ra7 b7 Qf8+ Kb6 Ra8 Qe4 Ba2 Qeh7 Ra7 Qh2 Qf7 Rc3 Rc5 Rd3+ Rc3 Nd8 N8c6 b8Q Rc7 Qa8 Nb8 Qab7 Rc6+ Ka7 Rd6 Nc6 Qc4 Bh5 Qe4 Bhg4 Qf4
K1R2q2/1B3B1R/1N3Q1b/p1R1P2N/Rq5b/1R2NnrB/4Nnr1/rr2k3 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 g4 Qf6 b3 Kd7 Bb2 Qd6 Bd4 Qb4 Be3 Ke8 Bf4 gxf4 h3 Qe7 g5 Bg4 hxg4 Qd8 Kf2 Kd7 Kf3 h5 Ke4 c5 d4 a5 e6+ Kd6 b4 c4 g6 c3 e7 c2 e8B c1B g7 h4 g5 f6 g6 f3 b6 h3 b5 f2 b7 h2 b6 Bh6 Na3 Qc8 Nc2 Ra6 Bf7 Bd2 Ra4 Rh3 Ne3 Ne7 g8N Bb4 g7 Rh7 Bh3 f1Q Qa1 Nd7 b8N Qe1 b7 Ne5 Nd7 Bd2 b8R Nf3 Rb3 Nf5 Nb6 Be7 Qc3 Nh6 Qa1 Kc7 d6+ Kc6 d5+ Kc5 d7 Qf8 d8R Ng4 d6 Rh5 d7 Rg5 Bd5 Ra8 Bb7 f5+ Kd3 f4 Ke4 Bc1 Nf6 Qb4+ Qd4+ Kb5 g8B Rg7 Kd5 Nf2 Bf7 Rg2 Nh5 Bh4 Qg7 Rc8 Qf6 Rc3 Nd1 Bd2 e4 Bc1 Ne2 Re3 Rf1 h1R e5 Rc3 Ne3 Bd2 Rfa1 Rb1 Re8 Nh2 Re7 f3 d8R Ne4 Rc8 f2 Ba8 f1R Ng4 Rbc1 Bg6 Bh6 Rh7 Nf2 Bf7 Rcg3 Ne3 Nf3 R1a2 Ra1 Rac2 Ka6 Kc6 Rfb1 Kc7 Kb5 Kb8 Ng5 Rc7 Nf3 Bc6+ Kc5 Nef4 Kd4 Ka8 Nd3 Bb7 Nf2 Rc6 Ke4 Rc5+ Kd4 Nfd5 Ke4 Nc3+ Kd3 Ne2+ Kd2 Ng4 Kd1 Ne3+ Ke1
1R2r1QN/8/PK1QQbQ1/1QnB3B/1B3N2/bq2p3/k1q1b2n/1rb1Q2R w - - 0 1 legal: proof: c4 a5 e4 h5 g4 f5 gxh5 d5 cxd5 c5 exf5 c4 d4 Qb6 b4 Qc5 dxc5 axb4 Ke2 Kd7 Ke3 e5 a4 b5 f4 g5 h4 g4 c6+ Kd6 a5 Kc5 a6 b3 h6 Kb4 h5 c3 h7 b2 h6 g3 d6 c2 f6 Kb3 c7 e4 Kd4 b4 Kc5 e3 f7 g2 f5 Nc6 f6 Nge7 d7 Nf5+ Kb6 Nfd4 d8Q Ne6 Q8d7 Ncd8 Qe1 Nd4 Nf3 g1B Nc3 b1Q Bd2 c1B Qe6+ Kb2 Be2 b3 Nd5 Qc2 Nh4 Ba3 f8Q Rg8 h8Q N4c6 h7 Qe4 f7+ Rg7 Rb1+ Ka2 Qc5 b2 f8Q Bf2 Qfd6 Nd4 Ng6 Nf3 Qb5 Bh4 Qhg8 Bf6 h8Q Qc2 Qhh7 Nh2 Bb4 Nb7 Nh8 Nc5 Bh5 Rg1 Qhg6 Bb7 c8B Rf1 Bd7 Re8 Bc6 Bc8 Qee5 Bg4 Nf4+ Qb3 Bd5 Be2 Qef5 Bd2 Rd1 b1Q Qfe6 Bdc1 Rd3 Qc2 Rc3 Nd3 Rc8 Nc5 Rb8 Bcb2 Qeg3 Rb1 Qe1 Bc1
R1R2R2/b1q2b1Q/3k2B1/3q1B1P/6BN/2b3rr/1pRRK1r1/1Q2nRNq w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 h6 f5 Ra7 g5 Ra8 Bb2 Kd6 Bd4 Nd7 Be3 Ndf6 gxf6 Kd7 Bg5 hxg5 h4 b5 a4 e5 d4 c5 d6 b4 d5 b3 h5 e4 a6 c4 a5 c3 a7 g4 a6 g5 Nd2 g3 Ndf3 g2 Ke2 e3 Ra2 c2 Qb1 c1Q Nh4 g4 Rc2 Bg7 f8Q g3 f7 b2 f6 Nh6 Qg8 Ng4 f8R Nh2 f7 Nf3 Qh7 Rg8 Re8 Rb8 f8R Ne1 a8B Rb3 a7 Qa5 Bb7 Rd3 a8B Qb5 Rd2 Qc7 Rc2 Qbc5 Ba6 Bb7 Rc8 Q5a5 Ngf3 g1B Bc4 Rb3 Bd3 g2 Bg6 Bf2 Ng1 Bc6 Bb7 Ra3 Ba6 Ba4 Bad3 Bb3 Kd1 Ba2 Bfe2 Qb5 Bf3 e2+ Kd2 Qbc4 Ra8 Qe4 Bg4+ Qe6 Bdf5 Rh3 Ngf3 Bb3 Rf1 g1R Rfc8 Rgg3 Ng1 Nf3+ Kd3 e1Q Rf8 Qe5 Rac8 Ne1+ Kd2 Qe4 Kd1 Be3 Ke2 Qh1 Bf3 Rg5 Bf7 Bc3 Ra8 Qc8 Be8+ Kd8 d7 Kc7 d8R+ Qf7 Rd6 Bf2 Rd8 Rg2 d6+ Kb6 d7 R8g3 B3g4 Qc7 Rdc8 Kc6 d8R+ Qd7 Beg6 Bf7 Rde8 Qd8 Re4 Qd5 Rd4 Kd6 Rdd2 Ba7+
3b1b1b/4pbQQ/R1Qb2B1/1QBQ2q1/K2q1k1B/1rN2n2/N1Pn4/1R2Q3 w - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 b5 a4 c5 dxc5 f5 axb5 a4 exf5 Ra5 bxa5 Rh4 Bd3 Rh5 Bf1 Rh8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 f4+ Ke4 h4 g5 f6 d5 f7 a3 c6 d4 b6 g3 c7 g4 f5 a2 h5 g2 f6 d3 h6 d2 b7 g3 h7 Bh3 c8Q Ke5 a6 Be6 a7 Bh3 a8Q Be6 Ne2 g1B Qe1 d1Q Nec3+ Qe2 Be3 g2 Bc5 Nd7 b8B+ Kf5 Ka4 Ne5 Qcc6 Qe3 Bd3+ Kf4 Bg6 Bh2 Qd5 g1B Qac6 Qd6 Bba7 Nf3 Bab6 Bg7 f8Q Bf7 Qb8 Bf8 Ba7 Qde5 Qbb5 Qg5 Bab6 Qd3 Bf2 Qd1 Bh4 Bd4 Ba7 Bb6 Rf1 Bd8 Bc5 Nh6 Rg1 Nf5 Rh1 Rg8 h8Q Nd6 Qh7 Nc4 Rf1 Qd4 Rh1 Be8 f7 Ncd2+ Qb4 Bh6 f8Q+ Bf7 Qfg7 Rh8 Nd1 Bg3 Nbc3 Bh2 Rb1 a1B Na2 Bg3 Ndc3 Bh2 Qgg8 Bf8 Qhg7 Rh6 Q8h7 Bb2 Bf5 Rd6 Bg6 Rd7 Rf1 Rb7 Rf2 Rb5 Re2 Bg3 Re6 Ba1 Qbc4 Rb3 Qb5 Kg4 Ra6 Bd6 Qdc6 Kf4 Ne4 Qdg1 Q4d5 Bf6 Nec3 Qf2 Qgg8 Bh8 Qgg7 Qd4+
1K6/2nB2N1/1qR2qQp/nkb3qn/RnRP2R1/1Rb5/3r1BR1/1Q3N1B w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qb3 a5 Qc2 Bf5 gxf5 g4 Qb3 g3 Qd1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qd7 Qa4 Qc8 Qd1 Qd8 d4 Kd7 Kd2 c5 Kd3 g2 Kc4 a4 b4 h6 e4 f2 e5 a3 b6 a2 Kb5 f3 e6+ Kd6 b7 c4 e7 c3 e8B c2 g5 Qf6 Kb6 Nd7+ Ka7 Be7 b8R Ne5 g6 Qh4 b5 Bg5 g7 Qg4 f6 Qh5 f7 Qg4 f8R Qg3 b6 Bd8 b7 Qh2 Nd2 Bg5 Rf4 Kc7 Ne2 g1Q Ng3 Nc4 Bd7 Nf6 g8R Nh5 Rg4 Be7 Bg2 f1Q Nf5 f2 Ng7 Na5 Rbc8+ Kd6 b8R Qh3 Rg6+ Qe6 Rh4 Rh7 Bf3 Qg5 Rb3 Qa6+ Kb8 f1N Rc7 Ne3 Nf1 Qef6 Rg4 Qc6 Bd2 c1N Bh1 Nd3 Be1 Nb4 Qb1 Rh8 Rgc8 Re8 Bf2 Qa6 Rc4 Qb6+ Ka8 Bf8 Rg2 Re4 R8c7 Rh4 Rg4 Rh2 R7c6+ Ke7 d6+ Kd8 Bg3 Rd2 Bf2 Ned5 Rg2 Qe3 R6g4 Qeg5 Be6 Be7 d7 Bc5 Qg6 Nb7 Kb8 Nc7 Rab1 a1B Rd1 Bb2 Ra1 Bc3 Ra4 Qa6 Qb1 Na5 Bf5 Ke7 d8Q+ Kf7 Qd5+ Ke7 Qde4+ Kd8 Bc8 Qb6+ Bb7 Kd7 Qg6 Qa6 Re6 Qd6 Bc8+ Kc6 Bd7+ Kb6 Bc8 Qc6 Rd6 Kb5 Be6 Qa6 Rc6 Nf4 Bf5 Nh5 Bd7 Qb6+
1NR1QqQ1/1B4N1/2QP1r2/2pRq3/1Qbb4/4b1rk/1nB5/bBQ1KrQ1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 Bb7 h4 Bh6 b3 Bc8 h5 Nc6 Ba3 Ne5 Bd6 Ng6 hxg6 Bg7 Bf4 gxf4 g5 Bf8 d4 Kd7 f7 e5 d6 a5 b4 c5 b6 h5 d5 a4 g7 f3 b5 h4 g6 h3 f6 e4 b7 a3 b8Q e3 b6 e2 b7 a2 Nd2 h2 Nb3 Qe8 Na5 Nh6 g8B Be7 f8Q Qf7 g7 Ra6 Bh7 Ra8 g8B Ra7 Bg2 Ra8 Qc1 Ra7 Bc2 Ra6 Qa8 Qe6 b8Q Nf7 Qg7 Qe5 Bgh7 Rg8 Qb4 Bd8 Rb1 a1B Nc6 Bb7 Nh3 f2+ Kd2 f1R Nf4 Be7 Ne6 e1B+ Kd1 Bd4 Qg3 Rg5 Ng7 Bd2+ Qe1 Rg3 Nb8+ Kd8 d7 B2e3 Rb3 Nd6 f7 Bf6 Rd3 Nc4 f8Q+ Kc7 Qc8+ Kd6 Qg8 Nb2+ Ke2 Bc6 d8Q+ Bd7 Qc8 Bb5 Qce8 Bc4 Rg1 h1Q Qf2 Qe7 Qac6+ Ke5 Bf3 Kf4 d6 Ra8 Rg2 Qf8 Qg1 Qh2 Bfe4 Kg4 Bb1 Rf2+ Ke1 Ra1 Rd2 Kh3 Bec2 Bfe5 Bhe4 Rf6 Rgf2 Rh6 Rf7 Rhg6 Rc7 Rf6 Rc8 Rg4 Qcb6 Na4 Ba2 Bb2 Qb1 Bd3 Kd1 Bc4 Bb7 Rg2 Rd5 B5d4 Qbc6 Qe5 Qf2 Rg3 Qg1 Bb3 Ke2 Bbc3 Qb2 Raf1 Qc1 Ba1 Bab1 Nb2 Qa6 R1f2+ Ke1 Bc4 Qac6 Rf1+
N3RR1B/1Bq4b/1NPR1R2/1n2p3/r2qBBBr/NK3qb1/5k2/1Q4rq w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Nb3 g5 Na5 g7 Nc4 Bd2 Ne5 Bc1 Ng6 hxg6 Qc7 Rh6 Qb6 Rh1 Qd8 Kd2 d5 b4 Kd7 c4 Kd6 Kc2 Ke5 f6 Ke4 f7 h5 c5 a5 c6 a4 b6 e6 b5 a3 b7 h4 b8B a2 b6 d3+ Kb3 h3 b7 d4 Bbf4 h2 b8N d2 Bb2 d3 Ne2 Kf3 Nd4+ Kf2 Nd7 Qb6+ Nb5 Qc7 Nb6 Bd6 f8R Be5 N1a3 Nf6 g8R Bc3 g7 Qe7 g6 Ne8 Qb1 d1R Nc7 d2 Ba6 Nd6 Bb7 Ra4 Nca8 Nb5 Re1 h1Q Rf6 Qd8 Rgf8 Rh4 g8B Qc7 g7 Be5 Bh7 Bd6 Re5 Rg1 g8B d1Q+ Bc2 Qh5 Be4 Q5f3+ Bc3 Bd7 Bgh7 Be8 Bhf5 Bg6 Bg4 Bh7 Rd5 Be5 Rdd8 Bd6 Rde8 Be5 Qd3 Bd6 Rd1 a1Q Qb1 Be5 Bc1 Bg3 Rd6 Qf5 Be5 Qd4 Bcf4 Qh5 Rg6 Qf5 Bh8 e5 Rgf6 Qh5 Bh3 Qe2 Bg4 Qef3+
7n/N4Nbk/NrNnB1r1/2KbR2b/pB2r3/Q1N4b/1P1R1Q1b/5NB1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ba6 g5 Bc8 h5 Qd6 Ne2 Ng8 Ng1 Qg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 Kf2 e5 d4 h5 g7 Kf7 b6 c5 d6 a5 f6 Kg6 b7 f3 Ke3 a4 f7 c4 d7 h4 d8N f2 d5 e4 Kd4 h3 d6 h2 d7 c3 Ne2 c2 Be3 c1B Nbc3 Rh4 Qe1 Rf4 Ng3 Ba3 f8B Kh7 Bb4 Nh6 g8N Rf6 Ne7 Raa6 Ndc6 Rb6 d8N Bg4 Nc8 Bh5 Bh3 f1B Qf2 Nf7 Kc5 Nh8 Be6 Bh3 N8a7 Rg6 Re1 h1B Nf7 B1g2 Bd4 e3 Nf1 e2 Rd1 e1R Rd2 Bd5 Rb1 Re4 Be3 Rh6 g6+ Kg8 g7 Kh7 Rd4 Bd2 Re1 Rg6 Rd3 Bc1 Bd4 Bf4 Rd2 Bh2 Re3 Rh4 Re5 Nd7+ Kd6 Bg3 b8N Re4 Na6 Nf6 Kc5 Bh2 Qf3 Reg4 Bg1 Ne8 Qf2 Rh4 Nd6 Re4 g8Q+ Kh6 Qgf8+ Kh7 Nf7 Nd6 Qe7 Rg5 Qb7 Re3 Kd4 Rg6 Ba5 Rb4+ Kc5 Nb5 Kb6 Ree4 Qe7 Rb3 Qb7 Bf8 Qe7 Bh6 Qa3 Nd6+ Kc5 Rb6 Bb4 Bg7
Bq3r2/B3QQP1/6NR/Bkq1qq1q/n1N4B/r2B1p1b/3Q4/K1B2R1q w - - 0 1 legal: proof: a4 d5 c4 e5 cxd5 f5 g3 b5 axb5 e4 Qc2 e3 Kd1 exf2 Qa4 Qh4 Kc2 Bc5 Kd3 Qg5 Qd1 Qd8 Kc2 Bf8 Nh3 g5 Ng1 f4 Ra6 f3 Ra4 Nd7 Ra1 Bd6 h3 Bf4 gxf4 Ne5 h4 g4 Bh3 Nf7 Bf1 Ng5 hxg5 Qd6 Ra4 Qe7 Ra1 Qd8 b4 Kd7 Kb2 h5 e4 c5 d4 a5 e5 h4 e6+ Kc7 g6 Kb6 g7 h3 e7 g3 e8B c4 d6 g2 d5 a4 d7 h2 d6 Ba6 f5 Nf6 Nd2 Rb8 Nh3 g1Q Bd3 f1Q Nf4 Qe3 Ng6 Qc8 d8B+ Qc7 d7 Nd5 f6 Qg2 f7 Nc3 f8Q Qh3 Bh4 Rc8 d8Q Qc5 Qf7 Qhf5 Bc6 Rf8 Qde7 Qb8 Ba8 Qh5 Rb1 a3+ Ka1 Na4 Qde2 c3 Qg2 Rc7 Nc4+ Ka7 Qd2 a2 Rf1 Bc8 b6+ Ka6 b7 h1Q Rb2 c2 b5+ Ka7 b6+ Ka6 Rb5 Qcf5 Re5 Bd7 Re6 Kb5 Rf6 Qd5 Rd6 Bh3 Rf6 Qdf5 Rc6 Qbc8 b8B Qd8 Ba7 Qb8 b7 Rcc8 Bb6 Rc7 Bb2 Rcc8 Ba5 c1Q+ Bb1 Qcc2 Bc1 Qc5 Re6 Q2f5 Be4 Rcd8 Bc2 Rd3 Rc6 Rc3 Bd3 Qg3 b8B Qgf4 Ba7 Qb8 Re1 Nb2 Nge5 Na4 Rf1 Ra3 Re6 Nc3 Kb2 a1Q+ Kc2 Rb3 Rh6 Na4 Ng6 Qaf6 Qe5 Qfd6 Qee7 Rc3+ Kb1 Qde5 Ka1 Ra3+
3n4/rPk2N1b/1nB1KQ2/R1Rr2p1/n3Q3/Q1QQ4/n1B2B1N/4nnnQ w - - 0 1 illegal: No possible last move
RB1N4/3rP1R1/5qN1/Q2NQrn1/3B1qqr/1K2B2p/nn1B1q2/1k1BB3 w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 b4 Ke7 d4 Kf6 e4 c5 d6 a5 b6 h5 d5 a4 b5 a3 d7 g2 e5+ Kg6 b7 h4 d6 c4 b6 h3 f5+ Kg7 g5 c3 e6 a2 g6 Kf6 g7 Ke5 f6 Ke4 f7 Rh7 f8B Ra4 e7 Qc8 d8N Ra7 d7 Nc6 b8B Nh6 g8Q Ra6 b7 Qc7 Qe6+ Ne5 Ne2 g1Q Be3 Ra7 Qd2 Nf7 Bfh6 Qg4 Nf4 Ng5 Be2 f1R Rg1 f2 Kb3 c2 Ng6 Qc5 Bg7 Rh4 Qa5 Qd4 Bd1 Kd3 Bd6 Qdf4 b8B Nc4 Bgd4 Nb2 Bb4 Rb7 Nc3 c1N+ Ka3 Ra7 Nd5 Rc7 Be1 Rb7 Bf3 Kc2 Qe5 Ra7 Ne6 Rc7 d8B Rd7 B3d2 Na4 B8b6 Nb2 Rb1 a1Q+ Kb4 Rh8 Nd8 Rh4 Rg2 Qa2 Ra1 Qf6 Be2 Qc4+ Ka3 Na2 B4e3 Qcf4 Bbd4 Rh1 Rg1 f1Q Rg3 Q1f2 Bf3 Nc1 Ra2 Rg1 Bd1+ Kb1 Kb4 Rg2 Ra4 Na2+ Kb3 Rg1 Nh8 Qgf5 Qe6 Rg2 Qd6 Ne4 Qe5 Rh6 Qb6 Rh4 Rg7 Rg5 Ng6 Q5g4 Ra8 Rf5 Qa5 Ng5
1rq4Q/pBRnN1qr/BPNkn3/6R1/3B2n1/N4rK1/NR1q2B1/n4B2 w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 g3 b5 axb5 e5 fxe5 f4 Be3 f3 Bg5 Ba6 Bc1 Bc8 Ra4 g5 Ra2 g4 Ra1 Bb7 Kf2 Bd5 Ke1 Bh6 h3 Bf4 gxf4 g3 Ra5 Be6 Ra1 Bg4 hxg4 Qf6 Ra6 Qh4 Ra1 Qd8 b4 Ke7 e4 h5 c4 d5 b6 d3 c5 g2 Kf2 h4 f5 d2 c6 h3 e6 h2 e5 d4 c7 d3 c8B Qd6 f6+ Kd8 g5 Na6 b5 Qf8 b7 Kc7 b8N Rh5 e7 Qh6 e8B Qf8 e6 Qe7 b6+ Kd6 g6 Rh3 f7 Kc5 f8N Kd6 g7 Nb4 Ng6 Rh6 Bb5 Qc7 e7 Nc6 e8B Nd4 Ne7 Nf6 g8R Nd7 Bb7 Qc8 Bb2 Ne6 Ne2 Rh7 Kg3 f2 Nbc6 Rb8 Ra2 g1Q+ Bg2 f1R Nec3 Rf8 Qh5 d1Q Rg5 d2 Bf1 Rf6 Na3 Rf3+ Kg4 Qe2 Bg6 d1N Bd3 Qee3 Bda6 Qd2 Kh4 Ne3 Ba1 Ndf8 Rb2 Nc2 Na2 Nd7 Qh6 Qc5 Kg4 Qcc3 Qf8 Qe5 Qh8 Qg7 Rg1 Rf5 Kg3 h1N+ Kg4 Nf2+ Kg3 Ng4 Rh1 Rf8 Rh2 Ne1 Rc2 Rf6 Bd4 Rf7 Rb2 Nc2 Rh6 Rf5 Rf6 Na1 Rf8 Qc7 Rc8 Qd8 Rc7 Qc8 Bfd3 Rf2 Bdf1 Rf3+
3R1bB1/2R1B1bR/p1RQr2P/1N1R1Q2/bb3N1n/n4K1Q/2b2n2/k2n3R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 h4 Bh3 Qf6 Bf1 Qg5 h3 a6 Qb3 Qh5 Qa4 g5 gxh5 g4 Qd1 g3 Ra3 Rh6 Ra2 Rg6 Ra1 Rg4 hxg4 Ra7 Rh3 Rb7 Rh2 Rb6 Rh3 Rh6 Rh1 Rh8 d4 Kd7 b4 Kd6 e4 c5 Ke2 f5 b6 c4 e5+ Kd7 b5 h3 h6 c3 d6 Ke6 b7 Kd5 b6 Kc4 d7 c2 d8R Kb3 e6 h2 d5 g2 g5 Ne7 d6 Nd7 b8R Ne5 g6 Rg8 d7 Nc4 g7 Ng6 b7 Nh4 e7 Na3 Nh3 g1B e8Q Bgc5 Qe5 Bb4 Qdd6 f3+ Kf2 f4 Nc3 Rh8 g8R Bg7 Bb2 c1B Nb5 Kc2 Ra2 Kb1 Bc4 Rh7 Ba1 Bf8 Rg3 Re7 Rg7 Re6 Rh7 Bg7 Rc2 Bf8 Ng1 Bb2 Qf5 Be5 Ra8 Beg7 b8Q Bb7 Bb2 Bc6 Ra7 Be4 Bc1 Ka1 Rc7 Bd3 Rc3 Bc2 Qc8 Ba4 Ne2 Bc2 Ke1 f2+ Kd2 f3 Nf4 f1B Rc6 Re8 Bg8 f2 Qh3 Bc4 Qf5 Be6 Ke2 f1N Rc7 Ba4 R3c6 Ne3 Kf2 Nd1+ Kg3 Ng6 Kf3 Beb3 Be3 Re4 Bf2 Re8 Bh4 Re6 Be7 Bc2 Re8 Re4 d8R Re6 Qh3 Re2 Qcf5 Re6 Rf1 h1N Re1 Nf2 Rh1 Bbc3 Rdd7 Bb4 Red8 Bbc3 Qdc5 Be1 Rd5 Bb4 Qd6 Nh4+
2N1B1Q1/5Nn1/R3QRNr/NBr4N/pP1kn3/rQp2b2/5q1b/5KNb w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 h4 g5 hxg5 e5 d4 Na6 d6 Nf6 d5 Ng8 Be3 Nb8 Bd4 exd4 Rh6 Kf7 g4 c5 b4 a5 f4 c4 b6 c3 f6 d3 d7 Ba6 b7 Be7 d6 Ke6 f5+ Ke5 f7 Nc6 f8Q Ra7 b8N Rc7 g6 Bb5 g7 Ba4 f6 Ke4 g5 Rc8 g6 Qc7 d8Q Na7 d7 Kd4 f7 Qc5 Qfe8 Kd5 f8N Nb5 Na3 Bd6 Nc4 Nc7 Nc6 Ne6 Na7 Nf6 g8B Bc6 g7 d2+ Ke2 Be5 Qb3 d1R Bf7 a4 g8N Ke4 Na5 Ng7 Rg6 Rc7 Nc8 h5 Qde7 h4 d8N Rd2+ Ke1 h3 Bb5 h2 Rd1 h1B Kf1 Rdh2 Rd6 Bd5 Ra6 Ra2 Qe6 Ra3 Rh6 Ke3 Bh5 Bdf3 Rg6 Nd5 Nf6 Rh6 Qg8 Qd4 Qe7 Rc5 Qee6 Rh7 Rh6 Qh4 Bhe8 Kd4 Rg6 Rh6 Nh5 Nf6 Nf7 Ne4 Rf6 Bh2 Ng6 Qf2#
2r3n1/Rp1bNQ1n/1BB3BN/2p3Nr/rnbNRKP1/kq1R4/3R4/2R5 w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Bh6 f4 Bg7 fxg5 Bf6 Na3 Be5 Nb1 Bg3+ hxg3 Kf8 Bc4 Kf7 Bf1 Ke8 Ke2 Kd7 Ke3 Kd6 a4 Kc5 d4+ Kd6 f6 e5 f7 h5 f8N h4 a5 h3 a6 e4 g6 c6 a7 b3 g5 h2 g7 b2 g4 Rh6 g6 Qf6 Nc3 b1R Nce2 Bf5 Nh3 Rh4 Ra4 Bd7 Ng5 Rh8 Bg2 Rh5 Qf1 Qd8 Kf4 Qc8 Be3 Nh6 g8B Rb3 g7 Rb1 Bf7 Nf5 g8N Ra1 Nh6 Na6 Ng6 Qg8 Ne7 Nb4 Bg6 Rc8 a8R Qf7 Rg1 h1B R8a7 Qg8 Qf3 Qe6 Bf2 e3 Rc1 Qf7 Ra2 Qg8 Rd2 Ra4 Bg1 Ng3 Qf1 Ne4 Rd3 Nf6 Rd2 Kc7 d6+ Kb6 d5 Kb5 Rd4 Qe6 Re4 Ng8 Bf3 Bg2 Qf2 Bf1 Nd4+ Kb6 Qa2 Bc4 Bh1 Kc5 Qb3 Be8 d7 e2 d8R e1N d6 Nf3 d7 Qf7+ Ndf5+ Kb5 Bb6 c5 Qa2 Qd5 Qf2 Qd1 Qf1 Qb3 Qf2 Ra6 Nd4+ Ka4 Qf1 Bb5 Qc4 Ka3 Qf7 Bc4 Re3 Nd2 Bc6 Ne4 Re2 Nef6 Rd2 Ra8 Rc8 Nh7 d8R Rb8 Rd5 Bd7 Re8 Ra8 Nc8 Qd3 Nb3 Nf8 Re4 Nh7 Ne7 Ra4 Rd6 Qc2 R6d3 Rc8 Nd4+ Qb3
1r3B2/2B1Q2B/1q2R2r/2pR1pBk/3Nn1n1/2PB2B1/Q1rN4/bb3qKN w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 d4 e5 dxe5 g5 f4 Bh6 fxg5 Bf8 a4 axb4 axb5 Qe7 Qd4 Qf6 Qd1 Qd8 Kf2 c5 e4 f5 h4 Kf7 b6 d5 h6 Kg6 h5+ Kf7 g6+ Ke7 b7 d4 c3 b3 h7 b2 h6 d3 g7 Kf7 e6+ Kg6 e7 d2 e8N Bd7 e5 Ra5 e6 Qc7 e7 Ra6 Nh3 Ra2 Qa4 d1R Bg5 Qc8 Bd3 Qc7 Nd6 Be8 Nd2 b1Q Nb5 Qc6 Re1 Qd6 Re6+ Nf6 g8B Qc7 Nd4 Rc2 Qa2 Nd7 b8B Qa5 Bc7 Bf7 e8Q Qab6 Qe7 Kh5 Kg2 Ne4 Nf2 Rdc1 Nh1 Ndf6 Bg3 Q1b5 Bc7 Re1 Rd1 Ng4 Bg3 Re2+ Kg1 Rh2 Re1 Nef6 R1e5 Ne4 Rd5 Rh3 Qd7 Bd6 Qe7 Bf4 Rd7 Be8 Bf1 Rb2 N2f3 Bc1 Rdd6 Bd7 Rd5 Bc8 Nd2 Ba6 B5f4 Qd3 Bc7 Qf3 Be2 Bd3 Bf1 Bb1 Bd3 Nef6 Bf7+ Kg5 Bg6 Re8 h8B Rb8 h7 Rh6 Bg7 Rc2 h8B Bb2 Bh7 Ba1 Bf8 Kh5 Bhg7 Ne4 Bf6 Qf4 Bg5 Qf1+
1qK4b/2RP2Nq/1r1rRnkn/b4pB1/3n2N1/BRQRR2B/5BNp/8 w - - 0 1 legal: proof: f4 d5 c4 b5 cxd5 e6 g4 b4 f5 exf5 a3 Be7 axb4 Bc5 b5 Bf8 g5 f6 gxf6 g5 h3 g4 Kf2 g3+ Ke1 Be6 Ra3 Bf7 Ra6 Bh5 Ra1 Bg4 hxg4 Bd6 Ra5 Bb4 Ra1 Bf8 d4 Kf7 Kd2 h5 Kd3 a5 Kc4 c5 e4 g2 b4 a4 d6 a3 Kd5 a2 b6 h4 g5 h3 e5 h2 d7 c4 e6+ Kg6 e7 c3 Ke6 c2 e8N Ra7 f7 Rb7 d5 Nh6 b5 Ra7 d6 Ng4 b7 Nh6 b6 Be7 f8B Bf6 Qf3 Ra3 Ng7 Nc6 b8R Nb4 b7 Ra7 Nd2 Rh7 Ne4 Nf7 Qc3 Ra3 Ne2 g1Q Bh3 Nd3 Nf2 Nb4 Ng4 Qa7 Re1 Rh6 Nf4+ Kh7 g6+ Kg8 Ng2 Ra4 Re3 Qc7 d8R Nd5 Rbc8 Be7 b8B Ra6 Rb1 a1B Rb3 Rb6 Rd7 Qcb7 Rcc7 Bd8 Ba3 c1N Be7 Bb2 Bg5 Ne2 Re7 Nd4+ Kd7 Kf8 R7e6 Ba1 Nh5 Kg8 g7 Kh7 g8R Rg6 Rge8 Nh6 Rd3 Rf6 Ng7 Kg6 Qc5 Bc3 Ree3 Ba5 R8e6 Be7 Qc3 Bf8 Nh5 Bg7 Kd8 Bh8 Ng7 Qc6 d7 Qc4 R6e4 Rfd6 Kc8 Nf6 Re8 Qf7 R8e6 Qe7 Rc5 Rd5 Bg3 Rdd6 Bf2 Qf7 Rc7 Qg8+ Ne8 Qh7 Ng7 Qb8#
k2KNNb1/1pQR3q/5Q2/1P1r1BB1/q6n/N2b3b/p4rQ1/QQ1n2QR w - - 0 1 legal: proof: b4 d5 h4 c5 bxc5 g5 c4 gxh4 cxd5 f5 e4 Bh6 exf5 Bg7 a3 Be5 Nf3 Bc3 Ng1 Bb4 axb4 Qa5 Qb3 Qb6 Qd1 Qd8 Ke2 h6 Ke3 Kd7 Kf4 Kc7 Ke5 a5 g4 e6 f4 a4 d4 a3 b5 a2 f6 Na6 c6 Kb8 d6 Nc5 f7 Na4 f8Q Nc5 c7+ Ka7 d7 Nd3+ Kd6 e5 f5 e4 g5 e3 d5 e2 f6 e1Q g6 Qe3 f7 Qe1 g7 Qd2 Na3 Nf2 Nf3 Qc3 Nd2 Ne7 g8Q Qc2 Bh3 Ng6 Ne4 Qa4 Qg1 Qe8 Nf6 Qee4 d8Q h5 Qfg7 Be6 c8Q Qb1 Q8h7 Rf8 Kc7 Rb8 d6 Ka8 Bg4 Bb3 Rh2 h3 d7 h4 Qd1 Bc4 Ne8 Qe4 Rg2 h2 Qg5 h1B d8Q h3 Rg3 h2 Rd3 Nh4 Q5e5 Rg8 f8N Bg2 Qdf6 h1B Rb1 Bd5 Qa1 Bh3 Kd7 B1g2 Qc7 Bf1 Qdf3 Qg6 Bf4 Be2 Rh1 Nd1 Rd2 Qh5 Qhb1 Qh7 Bf5 Rd8+ Ke7 Bf7 Qg1 Rg2 Bg5 Rf2 Qfg2 Rd4 Rd3 Bd5+ Kd8 Bg8+ Nd7 Rd6 Rd4 Bd3 Rd5 Rc6 Nf8 Rc5 Rd7 Rd5
2b5/1p4pR/r2R2N1/BR2n2B/2qBPb2/2b2KNB/3k2NQ/N2nrB1q w - - 0 1 legal: proof: c4 a5 f4 h5 d4 e5 fxe5 c5 b4 axb4 g4 d5 cxd5 c4 gxh5 Qd7 Kd2 Qb5 Ke1 Qc5 dxc5 Bf5 Nh3 Bd7 Ng1 Bc8 Kf2 Kd7 h4 f5 e4 c3 a4 b3 a5 b2 a6 c2 d6 Kc6 e6 f4 a7 f3 e7 Rh7 e8B+ Nd7 h6 Nf6 h5 Nd5 Ra6+ Nb6 Na3 b1Q Be3 c1B Bd4 Bb2 Qd2 Qc1 Nc2 Ba3 Ne2 Kb5 c6 Kc4 c7 Nb8 d7 Nd5 d8B Nb6 Na1 Bd7 c8B Qc2 Ng3+ Qd3 Bg6 Na4 Rd6 Nc3 Ba5 Rh8 h7 Bc1 h6 Nc6 Bh5 Ne5 Rh3 Be7 Qc2 Rf8 h8N Bf6 h7 Bf4 Ng6 Bg4 h8N Rd8 Kg1 f2+ Kg2 Qe2 Qa2+ Kd3 Nh4 Nd1 N8g6 Rh8 Bd7 Rhc8 Rh2 Rc6 Bf5 Ra6 Qb2 Rc8 a8R Rc1 Rc8 Rb1 Rc5 Rc1 Rb5 Rb1 Bd7 Bf5 Be8 Bc8 Bd7 Rc1 Bdc3+ Ke3 Bh3 Qc4 Qa2 Nd3 Bb2 Bc3 Rh1 Kd2 Kf3 Ne3 Ng2 Re1 Qa4 Nd1 Qa3 Bb4 Bd4 Bc3 Qa2+ Kc1 B3g4 Be6 N2h4 Bd5 Bg2 f1Q+ Qf2 Qg1 Bf1 Qb4 Bd7 Bf7 Bhg4 Be6 Rh3 Qc4 Qh2 Bf5 Ng2 Kd2 Rh7 Qh1 Bh5 Bh3 Be8 Bc8 Bd7 Qa4 Bdg4 Qc4 Bh3 Ne5+
R3bb2/1b6/QrQ1Rq2/N3BR1r/1R2P1pR/qN2r2p/2K2R2/2B1kn1Q w - - 0 1 legal: proof: d4 b5 g4 d5 a4 f5 axb5 e6 gxf5 Ba6 c4 Bc8 cxd5 Kd7 d6 Ke8 d7+ Ke7 h3 g5 d5 Kf7 d6 Nc6 Bg2 Ne5 Bd5 g4 h4 Nf3+ Kf1 Ng5 hxg5 exd5 Ke1 Qe8 Qc2 Qe7 Qd1 Qd8 Kd2 a5 b4 c5 f4 h5 e4 h4 b6 c4 b5 c3+ Kc2 a4 b7 d4 b8R a3 f6 Kg6 b6 Kh5 b7 a2 f5 Qa5 d8R Rh6 g6 Bd7 f7 Qc5 g7 Qb6 f6 Qb4 Ne2 Ne7 g8Q Ra6 Nd2 Qa3 Nc4 Rb6 Na5 Nd5 Re8 Bc6 d7 Rh7 Rb1 a1Q d8Q Rh6 Rb4 Ne3+ Kd3 Q1b2 Re6 Nf1 Qe8 Rh8 Ra8 c2+ Nb3 Rh7 b8B Bb7 Be5 Rh6 Qc6 h3 Qg6+ Kh4 Rh2 Rh5 Rf2 Qaa1 Na5 Qba3+ Kc4 d3 Nd4 d2 Ndb3 Q1b2 Kd3 Qba1 Qf3 d1B Qh1 Q1b2 Bd4 Kg3 Bc3 Be7 f8R Bc5 Rh8 Bf8 f7 Be2+ Kd4 Bb5 Qh6 Ba4 Kd3 Qba1 Bg7 Qf6 Qg6 Rf5 Rh4 Rh5 Qc3 Be8 Qc6 Be7 f8R Bc5 Bg5 c1R Bh8 Rc2 Bc1 Re2 Qh6 Re3+ Kc2 Be7 Rf7 Bf8 Rf5 Qg5 Be5+ Qf4 Qf6 Kf2 Qg6 Ke1 Qh6 Qg5 Rf2 Rb5 R7f5 Qf6 Qa6 Rb6 Qg6 Bd7 Qe8 Bb5 Qc8 Bd7 Qc6 Be8
3n1r2/5r1K/3bb2R/b1qRQ2Q/r1pRRqRP/3NBN1B/1R3pN1/k7 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Nc6 axb5 a4 f4 Na5 bxa5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b6 g5 h6 c5 a6 a3 d6 f3 a7 f2 d7 f6 Kf5 a2 Kg6 f5 e4+ Kb4 d5 c4 e5 f4 b7 g4 b8R+ Qb6+ d6 g3 d8R f3 h7 g2 e6 Ba6 e7 Bb7 e8Q Qe3 d7 Qe7 Na3 Kc3 Be3 Kb2 Nc2 Qa3 Nb4 Bd5 Qe5+ Qc3 Nd3+ Ka3 Rb2 Nh6 Qe2 Qc2 Re1 Bd6 h4 Re8 h8N a1B Kh7 Nf7 Ng6 Qc1 Ngf4 Be6 Rh3 Rf8 Rg3 Qd2 Rg4 Qc1 Rb4 Bc3 Rb2 Ba5 Qd1 Rb8 a8R Rb4 Ra6 Ra4 Qe2 Bdc7 Rd6 Qd2 Rd4 Bd6 Rdb8 Qc1 d8R Qd2 Rd7 Nd8 R8b5 Qc1 Rbd5 Qd2 Rc7 Qc1 Rc6 Qd2 Ngh3 g1Q Ng5 Qc1 Bg2 f1R Bh3 Qd2 Qd1 Qdh2 Ng2 Qf4 Bc1 Qf2 Ree4 Qg1 Be3 Qf2 Rbb5 Ka2 Qe2+ Ka1 Rb2 Qe1 Ra6 Qb4 Rc6 Qc5 Ra6 f2 Nf3 Rb1 Qe1 Bb6 Qa5 Rd1 Qb5 Ba5 Qe8 Re1 Q8h5 Re2 Rb4 Rea2 Rb2 R2a3 Rab6 Rb3 Ra6 Rb7+ Qf7 Bc8 Qeg7 Bdc7 Rh6 Bd6 Qf5 Rbf7 Qh5 Rf6 Qgg5 Be6 Qe5 R6f7+
2n2RB1/2NN4/bQqnBqp1/4r1b1/bK2R1Np/1n3BRR/1P1N4/k4N2 w - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 f5 gxf5 b4 d6 b3 d5 Qh4 Be3 Qc4 Bd4 Qa6 axb3 Qa4 b4 Qd7 b5 Qd8 h4 exd4 h5 a5 h6 g6 Ra4 Ne7 Ra3 Rg8 Ra4 Rg7 hxg7 Ng8 Ra1 Kf7 Qc1 Qe7 Qh6 Nc6 Nd2 Nf6 Ngf3 Bb7 Rh5 Rc8 Rh2 Nb8 Kd1 Rd8 Qg5 Bc8 Rh1 Qd7 Ng1 Be7 Qg3 Rh8 Qd3 Ng8 Nb1 Qd8 Ke1 Bf8 Qd1 Ke8 Kd2 Kd7 e4 c5 f4 h5 b6 a4 f6 d3 Kc3 a3 b7 a2 e5 d2 f5 c4 e6+ Ke8 e7 Kf7 d7 h4 d6 Rh5 Bh3 Na6 b8R Rg5 Rb3 Nb8 Ne2 Na6 Qg1 d1B Qb6 Nb8 Kb4 c3 Nd2 c2 Rg3 Nh6 e8B+ Kg8 f7+ Kh7 g8B+ Kg7 Bg2 Kf6 Bf3 Ke5 f6 c1Q Rhh3 Be7 f8N Nf5 Bef7 Qc6 Be6 Ba6 f7 Ba4 Re1 a1N Nh7 Rh5 f8N Bg5 Nf6 Qe7 d8R Nb3 Re8 Qf7 d7 Nd6 d8N Nd7 Bf5+ Qe7 Nde6 Qg7 Nc7+ Qe7 Qf2 Nb6 Bfe6 Nbc8 Qb6 Qg7 Bef7+ Kf5 N8d7 Qh8 Ng4 Qf6 Ng1 Kf4 Nf1 Kf5 Be6+ Kf4 Be2 Ke4 Bf3+ Kd3 Re4 Kc2 Rf8 Kb1 Bh1 Rh8 Nf3 Ka1 N3d2 Rh7 Bf3 Re7 Bc4 Re5 Bcf7 Nd4 Be6 Nb3
q4q1R/n3N3/1rB1KPQ1/1Bb1nR1n/pQ1p4/B3Nr2/2B1B2B/krQ5 w - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 a5 Kd3 d5 c4 Kd7 b4 Kd6 f6 Ke5 c5 h5 g7 a4 g6 h4 b6 h3 c6 e6 c7 h2 c8B Qc7 b5 Qb7 g5 Qd7 b7 Ne7 g8B Qd8 b6 Rh7 g7 Nbc6 b8Q+ Qc7 b7 Na5 g6 Ra6 Nc3 Qd6 Bd7 Nf5 Bb5 Nc6 Ba3 Na7 Be2 Ng3 Nh3 Rb6 Nf2 Nh5 Qc1 Rh8 Rf1 h1Q Bh7 Be7 g8Q Bf8 Kd2 d3 Ke3 d2 g7 d1R Bc2 Re1 Nfd1 Rh6 Kf2 Kd4 Ne3 e5 Qf7 e4 g8B Qb4 Qg6 Bc5 Qf4 Rh7 b8B Rhb7 Be6 Rd1 Qh4 Rd3 Bh2 Rb8 Bed7 R8b7 Ng4 Rg3 Bdc6 e3+ Ke1 Qe4 Rf5 Qe8 Kf1 Rf3+ Kg2 Qa8 Ra2 Rf4 Kh3 Rf3+ Qg3 Rb8 Kh4 R8b7 Kg5 Rb8 Qge1 R8b7 Bf1 e2 Ne3 Rb8 Kg4 R8b7 Qh4 e1N Bfe2 Nd3 Rb2 Bd6 Rb3 Ne5+ Kg5+ Kc5 Qhe1 d4 Ncd5 Rb8 Ne7 R8b7 Bb2 Qa3 Rc3+ Kb4 Qed2 Bc5 Qde1 Qb3 Qed2 Qf7 Ba3+ Ka5 Qde1 Qff8 Nf1 Ng7 Bbc4 Rb4 Rf4 Rf2 Rh3 Rb6 Rh8 Nh5 Ne3 Rf1 Kf5 Rf3 Qh4 Rb1 Ke6 Nf7 Bb5 Ne5 Bb2 Kb4 Ba3+ Kc3 Rf5 Nc4 Be4+ Kb3 Qhe1 Ka2 Bc2 Ne5 Qb4 Ka1
3qR1B1/3kNb1p/b2r1KBr/3q3N/1NNQp3/1b2BNP1/nr4N1/3QR3 w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 b5 h4 gxh4 a4 e4 axb5 Bf5 c4 Nc6 c5 Bd6 cxd6 Ne5 fxe5 Bc8 Kf2 c5 Ke3 f5 Kf4 a5 b4 h3 d7+ Ke7 Kg5 c4 b6 c3 g3 c2 b5 h2 b7 f4 b8N a4 b6 a3 e6 a2 d6+ Kf8+ e7+ Kf7 b7 Ke6 d5+ Kf7 Bc4 f3 Na3 f2 Nf3 f1B Nc6 Qb6 d8Q Qc7 b8N Ra5 d7 Ra6 Nb4 Nf6 d6+ Nd5 e8B+ Ke6 Be3 c1Q Bg6 Qd2 N8c6 Bd3 Rf1 h1B Ne7 Re8 Rc1 a1R Re1 Rb1 Ba2 Qb7 Nc4 Nc3 Qb6 Bg2 d8N+ Kd7 Kf6 Bc2 Qd4 Rb2 Ne6 Rd8 Nf4 Qd5 Nh5 Bh3 Bb3 Be6 Ra1 Rb6 Ra8 Ba6 Ba2 Rg8 Re8 Bb3 Nd3 Ne2 Ndf4 Nc1 Ng2 Q2a5 Bf5 Rg4 Bg6 Rh4 Ng8 Kc6 d7 Rh3 d8N+ Kd7 Ne7 Rd6 Ndc6 Qd8 Nb4 Rh4 Nhf4 Rh6 Nh5 Bh3+ Kg7 Qf7+ Kh8 Ba4 Na3 Qc4 Bb3 Na2 Kg7 Qc5 Bbf7 Bb3 Nc4 Be6 Kf6 Qd5 Bg8 Bf7+
6b1/nPBn3r/p4p2/1qN2R2/Q2q1RNk/1R1bQ1R1/RB1qBK2/4nR2 w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 f6 a4 Bd7 f5 Be6 g4 Bc8 axb5 e6 g5 exf5 g6 f4 Nh3 a6 Ng1 Nd7 Ra3 Ke7 Nf3 Bb7 Qa4 Qe8 Qc2 Rd8 Qb3 Bc8 Ne5 Nb8 Qd1 Rd7 Ra1 Qd8 Nf3 Ke8 Ng1 Rf7 gxf7+ Kd7 h4 g5 Rh2 g4 Rh3 Bh6 Rh1 Bg5 hxg5 Qe8 Rh5 Qf8 Rh1 Qd8 f8B h5 d4 c5 e4 c4 b4 c3 g6 g3 d6 Ke6 b6 f3 g7 c2 d5+ Ke5 b5 h4 d7 g2 d6 h3 b7 h2 b6 Rh3 Nc3 Rh5 Kf2 Rh6 Bb2 Kf4 e5 Kg4 e6 c1N e7 Nb3 e8Q Qc7 d8R Rh7 d7 Qc4 Ne4 Qb4 Nc5 Rh8 Be2 Nc1 Qe3 Rh7 Bd6 Qb5 Ra2 Kh4 Bc7 Ne7 g8R Nec6 Nh3 Na7 Rf1 h1Q Rg3 Qh2 Rh8 Nbc6 b8R Ne5 d8R Be6 Rd7 Bg8 Rd5 Nd7 Rf5 g1Q+ Ke1 Bf7 Nf2 Bg8 Ng4 Qhg2 Qa4 f2+ Kd2 Nd3 Rf4 Be6 Rhe8 Bg8 Re5 Q2h2 Ref5 Ne1 b7 Qhh1 Re8 Qhg2 Ree4 Q2h2 Rb4 Qhg2 Rb3 Qd5+ Bd3 Qgg2 Kd1 Qd4 Ke2 Qgd5 Rfg1 f1B+ Kf2 Qd6 Bc4 Bd3 Rf1 Be4 Be2 Bd3 Ne4 Q6b4 Nc5 Qd2
N2kB2R/3pq3/1K6/1R3n2/QR2N1b1/1nrp2BB/2r2RP1/BR1rrN1n w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 f4 f5 exf5 b5 axb5 Nf6 fxg5 Ba6 h4 Bh6 g6 Bg5 hxg5 Ng8 Rh4 Bb7 Rh1 Bc8 Kf2 a5 c4 h5 b4 e5 c5 d3 Ke3 e4 Kd4 e3 b6 h4 b7 e2 g7 e1R g6 h3 f6 a4 f7+ Ke7 f8R a3 c6 h2 Kc5 a2 c7 Rh4 b5 Rf4 b6 Rh4 Be2 Ra3 Nc3 Rb4 Rf2 Rd4 Qa4 Ke8 Bh5 Nc6 b8R Qh4 b7 Re7 Kb6 Qf6 Nf3 Re1 Bb2 Qf4 Rb1 a1R Ne4 Qg3 Nfd2 Qg4 Nf1 R1a2 Ba1 Qh4 Rb5 Nh6 g8B Rb4 Be6 Rc3 Bh3 Nf5 g7+ Ke7 g8R Ncd4 Bg6 Nb3 Be8 Rac2 Rh8 Qh7 Ra8 Rd1 b8B Bb7 c8N+ Kd8 Bg3 Qe7 Ra5 Rbc4 Rb4 Re1 Rg1 h1N Rab5 Rd1 Ka7 Rc6 Nb6 Re6 Na8 Re5 Kb6 Bc6 Nf6 Bf3 Ne4 Bg4 Nh2 Rdd2 Rb1 Rd1 Nf1 Re6+ Nd6 Re3 Ne4 Ree1
n1r4b/1B1q1RB1/b1R1qQ1P/4N1Q1/3bnK1B/5pp1/1B1B2RN/1kBb4 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Rh6 f4 exf4 axb5 a4 Nc3 Ra7 Nb1 Ra5 bxa5 Rh8 Kf2 Kd7 Kf3 Kd6 h4 Ke5 e4 Kd4 e5 g5 e6 f5 a6 c5 b6 a3 e7 c4 e8Q c3 b7 c2 a7 a2 a8R Nh6 d6 Ng4 h6 Qf6 d7 Qa6 d8B Qa5 h5 Qc5 h7 Qb4 h6 Nc6 b8B Qb6 Qf7 Nb4 Be5+ Kc5 Bg7 Nd5 d4+ Kb4 Ra7 Kb3 Bg2 Bc5 Qf6 Nf2 Na3 Ne4 Rf7 Nc7 d5 Ba6 d6 Bd4 d7 Na8 Rh2 Qe6 Ba5 Rc8 d8B Qd7 Nc4 g4+ Ke2 g3 Kf3 Qe6 h8B Qd7 Qd2 Qe6 Bb2 c1Q Ne5 Qcc6 Rc1 Qcd7 Rc6 a1B Bc1 Bac3 Qe3 Ka2 Bb4 Ba1 Bbd2 Kb1 Be7 Bd3 Bh1 Bc2 Rg2 Bac3 Qg6 Bb2 Bh4 Ba1 Qf6 Bac3 Ke2 Bd1+ Kd3 f3 Qeg5 f2 Ngf3 f4 Nh2 Bb3 Ke2 f1B+ Kf3 Ba6 Bf8 Ba7 Bhg7 Bf2 Bfa3 Bfd4 Bab2 Bd1+ Re2 Qa7 Neg4 Qe5 Qd6 Qe8 Bf8 Nf6 Rc4 Bc5 Qd8 Be7 Ne5 Bd4 Qb6 Qad7 Qe6 Nh7 Kg4 Bf6 Bb7 f3 Rg2 Bg7 Kf4 Bh8 Rc6 Nf6 Bg7 Ne4 Qef6 Qee6
Br5N/Q6n/BP1r2Q1/pbrR1BB1/3Nn3/2RNKn2/k2B1prb/7B w - - 0 1 legal: proof: b4 a5 h4 b5 f4 d5 a4 e5 axb5 exf4 c4 g5 hxg5 Nh6 cxd5 Ng8 b6 Qd7 b5 Qc6 Rh4 Qb7 Rh1 Qa6 bxa6 Bd6 Rh5 Bc5 Rh1 Bf8 Kf2 Kd7 e4 Kd6 g4 Kc5 d4+ Kb4 e5 f5 a7 h5 d6 c5 d5 c4 e6 h4 d7 c3 d8N c2 e7 Kb3 e8Q h3 g6 h2 g7 f3 g5 f4 d6 Na6 d7 Rh5 g6 Rh3 Na3 Rg3 Nh3 Nb4 Nb5 Nh6 g8B+ Nd5 g7 Ba6 Qg6 Bd6 Nf7 Rd8 a8B Nf6 Nh8+ Nf7 Bd2 Rb8 d8B Nh7 Rc1 Ka2 Nd4 Bb5 Bg5 Be5 Rg1 h1R Qe2 Bc7 Qe7 Be5 Rd1 c1R Qa7 Rc5 Be2 Rg4 Rg3 Bd6 Bd3 Re1 Bc2 Re6 Bf5 Ne5 Bf7 Bc7 g8B Bd6 Be8 Bc7 Bec6 Bd6 Kg1 f2+ Kg2 f1N Kf2 f3 Nf4 Bc7 Nd3 Bd6 Rh3 Ng3 Ke3 f2 Bh1 Ne4 Bf7 Nf3 Be8 Ba4 Bb5 Bh2 Ba6 Bd7 Rc1 Bb5 Rc3 Rd6 Rh5 Nf8 Rh7 Rg1 Rd7 Nh7 Rd8 Rg2 Rd7 Rdc6 Rd5 Rd6
2NR4/pbRBR3/4P1Q1/n3bNR1/1B1n2B1/n4r2/p3b1rN/k2KbRB1 w - - 0 1 legal: proof: c4 b5 g4 g5 f4 f5 gxf5 d5 cxd5 e5 fxe5 g4 a4 bxa4 h4 Qg5 hxg5 Be6 Rh5 Bd7 Rh1 Bc8 e4 Kf7 d4 c5 b4 h5 e6+ Kg7 g6 Kf6 b5 g3 b6 g2 e7 h4 e8B c4 b7 c3 d6 h3 d5 Ke5 g7 a3 f6 c2 f7 a2 d7 h2 d8N Bb4+ Nc3 Bf5 f8B Bd7 d6 Na6 b8R Rh7 Nf3+ Kf6 e5+ Kf5 e6 g1N Nb7 Rh3 Be3 c1B Rc8 Ne7 g8R Ne2 Bg1 Bb5 d7 Nc6 d8R Bf4 Rc7 Ned4 Be2 Be5 Bd7 Na5 Qc2+ Kf6 Bd1 Be2 Nd6 Rg3 Nf5 Rg2 Rc1 Rc8 Rb7 Nc7 Rg5 Ncb5 Kd2 Na3 Qe4 Bc5 Na4 Bb4+ Rc3 Rb8 Nb6 Ra8 Kc1 Rc8 Rcc7 Be1 Bb4 Rb8 Rdg8 Rf8 Nc8 Rf7 Rd8 Rf8 Bf2 Rf7 Rg1 h1B Nh2 Bf3 Ng3 Ndc2 Be2 Bd4 Rf1 Rg1 Bdb5 Ba1 Bed3 Be2 Rc6 Bhf3 Rc4 Rg2 Re7 Rf8 Qh7 Bb7 Bf5 Ke5 Bd7 Kd5 Qh5 Be5 Rc7 Nd4 Bg4 Rf3 Nf5 Ke4 Bg1 Kd3 Bc6 Kc4 Bd7+ Kb3 Qg6 Bd3 Kd1 Kb2 Bh5 Ka1 Bg4 Be2+
4NB2/bb5R/1nknpKB1/3Nq2N/1B3R1B/1P1nb3/RB1N2pq/1Q3q2 w - - 0 1 legal: proof: g4 h5 a4 d5 e4 dxe4 h4 f5 gxf5 b5 axb5 a5 f4 g5 c4 g4 f6 Ra6 f5 Rd6 Nc3 Rd4 Nb1 Rd5 cxd5 Rh7 Bc4 Rg7 Bf1 Rg5 hxg5 Qd6 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 h4 Ke5 e6 d4 h3 g6 e3 f7 g3 b3 c4 d6 a4 d5 g2 g7 a3 f6 h2 b6 a2 b7 e2 Nd2 e1B Bd3 c3 Bg6 c2 Ne2 Qe8 Ng3 Bf2 Nh5 Bg1 Bb2 Nh6 g8N c1Q Ne7 Qc4 Qb1 Na6 b8R Qc7 Rb4 Nf5 Rf4 Bh6 f8B Bb7 f7 Qa8 Kf6 Bf2 Ng7 Ba7 Nh5 Kd8 d7 Nb8 Bc1 Qd6 Bb2 Kc7 d8B+ Kd7 Ba5 Qc7 Bb4 Nd6 Rc1 h1N Rc6 Nf5 d6 Nf2 Nd5 Nd3 Rb6 Nc5 Rb5 Kc6 d7 Nd6 d8B Nd3 Ra5 Bf2 Ra7 Nd7+ Ke7 Nb6+ Kf6 Nf5 Bfc5 Bg1 f8N Nd6 Nd7 Qcb8 Be7 Be3 Bf8 Bg1 Bf2 Qc7 Rg4 Be3 Bh4 Qcb8 Rf4 Qc7 Nc5 Qh7 Na6 Qb8 Bf7 Qe4 Nac7 Bgf2 Ne8 Qc7 Bg6 Qh7 Qe1 Qc7 Rb1 a1Q Rd1 Qa6 Ra1 Qac4 Qb1 Qc1 R1a2 Qf1 Ra8 Qh7 Rd8 Bg1 Rd7 Qh6 Rf5 Qhf4 Rf7 Qh2 Rf4 Nd7+ Kg5 Ba7 Rh7 Nb6 Kf6 Bd4+ Kg5 Be3 Kf6 Qe5+
2QbK1Bk/1B6/2qN1RPB/2N2pnR/p1NNB2q/1q1n4/q4Rn1/B2r4 w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 c5 axb5 f5 g4 a6 d4 cxd4 g5 Bc5 Ra4 Bd6 Ra1 Bf8 h3 a5 Ra3 Bb7 Re3 Bf3 Kf2 Ra6 Ra3 Bg4 Ra1 Rf6 gxf6 g5 Ke1 Bh5 Be3 g4 Bd2 g3 Bc1 Bg4 hxg4 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 Kf7 Kd3 h5 Kc4 h4 Kd5 h3 e4 g2 b4 d6 c4 a4 b6 d3 b7 d2 g5 h2 g6+ Ke8 Ke6 d5 b5 d4 b6 d3 c5 Rh5 c6 Bd6 f7+ Kf8 c7 Kg7 c8B Rh8 f8R Na6 b8N Qf6+ Kd7 Bc7 e6 Qe5 b7 Rh5 e7 Bb6 e8N+ Kh8 Nd6 Qc5 e5 Qa5 e6 Rh4 e7 Bf2 e8B Bd4 Bf7 Nb4 Ra2 Qa8 Ne2 g1Q Qc2 d1N Na3 d2 Nac4 Ne3 Ke8 d1Q Na6 Nd3 b8B Bf6 Nd4 Ng2 Bh6 Bd8 Nc5 Qf2 Bb7 Rg4 Qc1 Qb3 Be6 Re4 Rf6 Re1 Be2 Qa6 Bef3 Rd1 Bfe4 Qh4 Rf2 Qc6+ Nd7 Qa2 Qc3 Qb6 Nc5 Qbb3 B6d5 Ne7 Qc2 Nc6 Bg8 Nce5 Bc7 Nf7 Ba5 Ng5 Bc3 Qb4 Ba1 Qbb1 Rg1 h1Q Rgf1 Q1h3 Rh1 Qf3 Qc3 Qbb3 Rh3 Qhf4 Rh5 Q4g3 Qa5 Qh4 Qc7 Qff4 Qd7 Qe5+ Qe6 Qd5 Qc8 Qc6+
1Rqn3B/Q1B1np1p/R3q3/B2Bb3/N2P4/q4Q2/1BK3Nn/Qr2n1Bk w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 a6 axb5 Bd7 h4 gxh4 e3 Nf6 d6 Bc8 d5 Ng8 Rh2 e5 Rh1 e4 Qf3 a5 Qd1 Ra6 Nc3 Bf5 Nb1 Rc6 f3 Rc4 Qd3 Rb4 Qd1 Rd4 exd4 e3 Na3 Nd7 Nb1 Be4 fxe4 Nb8 g4 Kd7 b4 c5 b6 c4 e5 a4 b5 h3 g5 c3 g6 h2 b7 c2 e6+ Ke8 e7 Kd7 b6 e2 Kd2 e1N g7 a3 Nf3 a2 Nh4 Qe8 Qf3 Qd8 Nc3 Na6 b8B Nh6 e8Q+ Kc8 g8Q Kb7 d7 Nc7 d6+ Nd5 Ng2 Kc6 b7 Qc8 Na4 Ng4 Bc7 Bg7 b8B Be5 Bb2 c1N Qe7 Ne2 d8B Nf4 d7 Ne6 Qg6 Rg8 Qb1 Rg7 Rg1 h1Q Bc4 Qh3 Ba5 Rg8 Bdc7 Nh2 d8B Qf5 Kd1 Qe4 Qea3 Ne7 Qc1 Rg4 Rb1 a1Q Bd5+ Kd7 Qac5 Qa3 Qa7 Qf5 Ra1 Re4 Ra2 Re3 Qa1 Rb3 Bd2 Rb6 Be3 Rb5 Ba5+ Rb7 Bdb6 Nd8 B6c7 Qe6 Rf1 Rb3 Bg1 Rb5 Kd2 Rb7 Bbc3 Rb1 Bb2 Nf5 Rf2 Ke7 Re2 Kf6 Re3 Kg5 Rb3 Ne7 Rb6 Bh8 Be5 Bf6 Bbc7 Bg7 Rb8 Bf6 Qf1 Kg4 Qf2 Kh3 Qe2 Bh4 Qf3+ Bg3 Bh8 Ng4 Be3 Kh2 Bf2 Kh1 Bg1 Nd3 Kc2 Nh2 Rb6 Be5 Ra6 Qb4 Ra3 Qbd6 Rb3 Qa3 Rb8 Ne1+
1Kn5/n1N1NQQb/1P2n3/1R5B/1B3pNk/1nn3R1/prN2Nn1/q3N1R1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Kf2 g5 Ke1 a5 h3 Bh6 h4 Ra6 Qc2 Rf6 Qd1 Rf5 gxf5 g4 Rh2 Qd6 Rh1 Bg5 hxg5 Qd8 Kf2 Ke7 e4 c5 d4 h5 b4 c4 e5 h4 f6+ Kf7 e6+ Kg6 d6 Kh5 d7 a4 f7 h3 f8Q h2 g6 c3 d5 c2 e7 a3 e8N a2 g7 Ne7 g8N Qb6+ Qd4 Nec6 d8N Ne5 d6 Qc6 b6 Nf7 b7 Nd7 b8R Qc5 b5 Qe5 Nh6 Kh4 Nc7 Kg5 Na3 Nb6 d7 Qe4 Nh3+ Kh5 Be2 Nd6 Nde6 Kh4 d8N Qe5 Bd2 c1N Nc6 Nb3 Nc5 Bf5 Bb4 Ndc8 Nd3 Bh7 Rag1 Na7 Nc2 Nbc8 Ne7 Qg7 Qc4 Qa1 Qg7 Rd8 Nde1 Rd2 Qcf7 g3+ Kf1 f2 Kg2 f1N Kf3 g2 Ng4 Ne3 Nhf2 Nf5 Ke4 Nfd4+ Ke5 Ne6+ Nd4 Rb2 Ndc2 Nb6 Kd6 Nbc8+ Kd7 Bf5 Rf1 Bh7 Rhg1 h1N b6 Ng3 Bf3 Nd6 Rg8 Ndc8 Bd1 Nf5 Bf3 Nb5 Kc6 Nba7+ Kb7 Ne3 Kb8 Qc1 Nh6 Qd1 Bh5 Qa1 Nhg4 Kg3 Rh1 g1N Rh2 Ne2 Rg2+ Kh4 Rfg1 Nf8 Rg3 Ne6 Rd8 Ng2 Rd5 Nc3 Ra5 Nb1 Rb5 Nc3
3N1N2/3brRN1/b1NR2B1/2BK4/prP4R/BQ2rqR1/5k1p/R1qr2b1 w - - 0 1 illegal: No possible last move
4Q1Qb/2kN2Pp/nn3N1K/5Bn1/1n1NR1b1/6pN/3rRN1b/3Q1NBb w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Kf2 a5 Ke1 Qd7 h3 Qf5 gxf5 g5 h4 g4 Ra3 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bg7 Ra2 Bh6 Ra1 Bf8 Kf2 Kd8 b4 c5 d4 c4 e4 a4 d6 c3 d7 a3 d5 a2 g6 c2 e5 Bc5+ Be3 c1N b6 Bf8 e6 Bd6 b5 Bb7 f6 Bc6 f7 Nb3 f8N Be5 b7 Bg7 e7+ Kc7 e8N+ Kd8 b6 Nc5 Bd3 Ne7 Rh2 Na4 Nf6 Nc5 Nd2 Nf5 Nf1 Nba6 b8Q+ Ke7 d8N Ng3 b7 Rg8 Nh3 Bh8 g7 Na4 Ne4 Nb6 d6+ Ke8 Rc1 a1B Rc4 Be5 d7+ Ke7 Nde6 Bd6 Ke1 f2+ Kd2 f3 Nd4 Bf4 Qe5+ Kd8 Qe8+ Kc7 b8N Bd6 Neg5 Be5 Bf5 Ne4+ Kd3 Bd6 Rg2 Bh2 d8Q+ Kb7 Nbd7 g3 Qa8+ Kc7 Rb4 Bd5 Nf6 Be6 N8d7 Rf8 Nd2 f1N Bg1 Ne3 Re2 f2 Nf1 Nc2 Ra4 Ncb4+ Ke3 Rf7 Kf4 Bd5 Qg8 Rf8 Kg4 Rd8 Kh5 Bb7 Kh6 Bc6 Nd2 f1B Nf2 Bh3 Nf1 Bg4 Ngh3 Ng5 Qe8 Bcf3 Qd5 Bh1 Qdg8 Ba8 Ra3 Bh1 Rae3 Nc8 Re4 Nb6 Nb8 Rd6 Nd7 Rd5 Nc6 Rd3 Nd4 Rd2
1b1B1Kr1/k1r5/5n2/b1P1rR1R/p1B2n2/1Qp1pBBB/1Nq1B2R/3QN3 w - - 0 1 illegal: No proof kernel
K2B4/R1R3p1/2p1r1Rq/N1R5/1R3n1B/5N2/Prb2QQp/1bkB1Rqn w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 g3 a3 bxa3 Qd7 a4 Qd6 a5 Qd8 f4 e6 f6 Nh6 h4 Ng4 h5 Bd6 f5 Bf4 h6 Nxh6 gxf4 Ng4 Qe2 Nh2 Qf3 Ng4 Qd1 Nh2 Kf2 Kd7 Ke3 Kd6 Kd4 h5 a6 b5 a7 c6 f7 h4 f8R b4 f6 h3 f7 b3 f5 b2 f6 Rh7 Qf3 Rh6 Na3 b1B Nc4+ Kd7 Kc5 e5 d4 e4 d6 Ke6 d7 e3 Na5 e2 d5+ Ke5 d6 e1Q Be2 Bf5 Bg5 Bb7 Qg2 Qd1 Rb1 Bc2 Nf3+ Ke4 Rb4+ Kf5 Rg1 Ba6 Bh4 Ng4 Rf1 Qe8 Kb6 h2 d8B Nf2 d7 Bad3 Kb7 Qe6 Rh8 Qd6 f8Q Nh1 f7 Re6 Rh6 Na6 Rg6 Qc1 Bd1 Nc7 Qh8 Qd4 f8R+ Ke4 Rf7 Ke3 Qf8 Nd5 Re7 Rc8 a8R Nf4 Ra7 Rc7+ Ka8 Rb7 Qf7 Bb1 Qf6 Bdc2 Qf5 Qa1 Qc5+ Kd3 Qcf2 Qf6 Rf7 Qg5 Rf5 Qh6 Rc5 Rb6 Bdg5 Qe3 d8R+ Qd4 Rc8 Qe3 Re4 Rb2 Rcc7 Qd4 Bd8 Qe3 Ng5 Qc1 Rb4 Qe3 Be2+ Kd2 Bd1+ Kc1 Nf3 Qd4 Qe1 Qg1 Qee2 Nd5 Qef2 Nf4
1Nr5/3p4/1RPNp2n/QB3B2/qNQR2rq/Nn1B1kb1/N1N2p2/4b2K w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 f4 Nc6 g4 Bg7 f5 Nb8 Bf4 gxf4 h3 Bb7 g5 Bf8 Nc3 Bf3 Nb1 Bg4 hxg4 Qc7 Bg2 Qb6 Bf1 Qd8 Kf2 Kf7 Kg2 a5 c4 h5 b4 h4 b6 a4 b7 a3 c6 a2 c5 Ra6 c7 Rh6 c8N Ra3 b5 Rh5 c6 Rh6 b6 Bg7 g6+ Kf8 g5 Rh8 f7 Rh6 Qc2 Rh8 Nd6 Ra7 Bd3 Be5 Qc4 Kg7 f8N Qc7 Ne2 Ra4 Na3 Bc3 Nc1 Bf6 Rd1 f3+ Kh1 h3 Rb1 a1B Na2 Rh6 Ne6+ Kh8 g7+ Kh7 Nd4 h2 Ndc2 Na6 b8N f2 b7 Bfc3 Rb6 Nc5 Na6 Be1 b8N Nb3 N6b4 Qa7 f6+ Rg6 f7 e6 f8Q Nh6 Qd8 Be5 g8B+ Kg7 Qc7 Bg3 Bh7 Rf6 g6 Rf8 Be2 Kf6 g7 Ke5 g8B Rc8 Rd4 Qa5 Be4 Kf4 Bgh7 Qa6 B2d3 Kg4 Bef5+ Kf3 Nd5 Rb4 Qa7 Qa4 Qa5 Rb5 Ndb4 Rc5 Bfg6 Rg5 Bgf5 Rg4 Bf1 Na1 B5d3 Nb3 Bhf5 Nd2 Bde4+ Kf4 Qc3 Qb5 Kg2 Qa4 Bb5 Nb3 Qc5 Rf8 Qc4 Rc8 Bd3+ Ke5 Kf3 h1Q+ Ke2 Qh2 Kf3 Qh4 Kg2 Qd8 Bde4 Kf4 Kh1 Qg5 Bd3+ Kf3 Nc1 Qf6 Nca2 Qh4#
2k2B2/Q4n2/rnNB1r2/1QNpb3/QN1p1QK1/1p4q1/rQPQ2Rq/4R3 w - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 f5 exf5 a4 d3 a3 Bg2 c6 Bd5 cxd5 bxa3 b6 a4 Ba6 a5 Bc4 dxc4 Ra6 Bb2 Ra7 Bc1 Ra8 Ke2 e5 Kf3 g5 a4 d6 h4 Kd7 h6 e4+ Kg4 b5 f4 e3 c5 b4 h7 b3 h5 e2 h6 e1R f6 Re2 c6+ Kc8 c7 Be7 f5 Re1 a6 Qd7 f7 Re4+ Bf4 Bf6 f8B Re1 a5 Qf7 a7 Kd7 c8N Bd8 f6 Na6 Rh2 Nb4 a6 Re8 Nf3 Re7 Nd4 Re4 Ne7 Bb6 Nd2 Bc7 Ndc6 Re2 Ne4 Na2 Rg2 Qg7 f7 Rf2 Qd2 Nc3 Nb4 Na4 Re1 Nb6 Nec6 Kc8 Nc5 Qe5 Bg3 Rf6 Bh2 Rb8 a8Q Qg3+ Kh5 g4 Qa7 Ra8 Kg5 Qd3 Be5 g3 Kg4 Ne7 Bf4 Ng6 Be5 Rg8 h8Q Qe3 Qg7 Nh8 Qg5 Rgg6 h7 Rh6 Bf4 Qg1 Qe5 Qh2 Qb2 d4 Be5 d5 Bed6 Ng6 h8Q Bb8 Qh7 Nh8 Qhd3 Bc7 Qb5 Bb8 Rf2 g2 Rfe2 g1Q+ Rg2 Rh5 Bh6 Re5 f8Q+ Re8 Qff7 Ree6 Bhf8 Qf2 Bde7 Be5 Bd6 Rh6 Qff4 Nf7 Qe7 Rhf6 a7 Rb8 a8Q Qe3 Qaa7 Ra8 Qaa1 Ra2 Qa7 Re7 Qaa4 Ra7 Qba3 Qf2 Q1b2 Ra8 Qa7 Qe3 Q3a4 Qc3 Qe7 Ra6 Qa7 Qcg3+
2BN2Q1/R1P1pr2/NnR5/1k1b2N1/1Np3pR/1N1q1rQN/2nr3K/5Bq1 w - - 0 1 illegal: No possible last move, all moves rejected
1rnKN2N/1R3pp1/Q5N1/B2BrrR1/4n2p/NQq2k2/1P3n2/Q2Nq2N w - - 0 1 illegal: No proof kernel
q1R4R/RppPRR2/rk1n3n/1Nn1BN2/2bp4/1Nq5/B2K4/1nB2Q1B w - - 0 1 illegal: No possible last move
RK1n1Q2/bBp4p/p1P3bb/3R4/k1bQ3Q/3N4/b2r1QNn/NBQ3Q1 w - - 0 1 legal: proof: e4 b5 f4 d5 exd5 g5 a4 e5 axb5 e4 b3 Qf6 Bb2 Qe5 fxe5 Kd7 Be2 Ke7 Bf1 Ke8 h4 a6 g4 Bb7 h5 Be7 Bd4 Bc8 Be3 Bf8 Bf4 gxf4 g5 Ra7 Qf3 Rb7 Qe2 Rb6 Qd1 Rg6 hxg6 Bd6 Ra5 Bc5 Ra1 Bf8 Ke2 Kd7 d4 f5 c4 e3 Kf3 e2 d6 e1B d5 Nh6 c5 Nc6 e6+ Kd8 b4 Bd7 e7+ Kc8 e8B Kb7 b6 Bf2 b5 Be3 g7 Bd2 g8Q Be7 g6 Bd8 g7 Be6 d7 Be7 d8Q Bf6 d6 Nf7 d7 Nb8 Qc1 Be1 Nh3 Bd2 Bg2 Be5 Rf1 Nc6 Qf8 Bd4 g8Q B2c3 Na3 Nb4 Qh4 Bf6 d8Q Nc6 Nc2 Bce5 Ra5 Bg5 Na1 Nh6 Qd4 Na7 Bg6 Bd6 Re1 Bb3 Re8 Bc4 Ra8 Nc6 Qff6 Bf7 Qdf2 Ba2 Q6d4 Ng4 Qgg7 Rb8 Bh1 Kc8 b7+ Kd8 Qg8+ Kd7 b6 Rd8 b8Q Bh6 b7 Nh2+ Ke2 f3+ Kd3 f4 Ke4 Bb1+ Kd5 Bf5 Qf8 Be5 Qfg1 f2 Qa7 f3 Nf4 f1B Ng2 f2 Rb5 Bb1 Be4 Bfd3 b8N+ Kc8+ Ke6 f1B Qdf2 Bd4 Nd7+ Nb8 Ke7 Ba2 Ne5 Bdb1 Ra5 Bfc4 Nd3 Bde3 Qb6 Bc2 Qbf6 Bcb1 Bg6 Kb7 Qfd4 Rd6 Ke8 Nc6 Bf5 Nd8 Ke7 Rb6 Kd7 Rb2 Bg6 Rd2 Bf5 Nf7 Bg6 Nd6 Kd8 Kc6 Bf5 Nb7+ Kc8 Nd8 Kb8 Bab3 Nb2 B1a2 Bb1 Bf7 Nd3 Bg6 Ra4 Kb5 Rb4+ Ka5 Rb6 Bc4 Rd6 Re2 Rd5 Rd2 Nge1 Bf5 Qdf6 Bg7 Rd4 Ne6 Bb7 Bgh6 c6 Bg6 Ng2 Nd8 Rd5+ Ka4 Qfb2 Bb6 Qbd4 Ba7+
N3k1K1/1q4Rp/2nrpn1Q/1Bq2R1P/2nRB2N/2QN1R2/3RR2p/1r4n1 w - - 0 1 legal: proof: h4 b5 a4 d5 axb5 d4 h5 g6 d3 Qd7 Bg5 Bb7 Bh4 g5 c3 Qd8 cxd4 Ba6 d5 Bc8 f4 gxh4 e4 Nc6 g4 Bh6 d6 Be6 d4 Bd5 exd5 Bg5 fxg5 Nb8 Kd2 a5 Kd3 f5 Kc4 c5 b4 a4 g6 h3 b6 h2 b7 a3 b5 f4 b6 a2 g7 f3 d7+ Kf7 d6 f2 Kd5 c4 g5 c3 g6+ Kf6 Ne2 c2 Nd2 c1N Qc2 Nb3 Qc3 Qc7 d8R Nc6 b8R Nba5 b7 Qb6 d7 Ra7 Re1 a1N Nf3 Ne5 Nf4 N1b3 Re2 Nac4 Nh4 Nc6 Nd3 Nh6 g8B Ra2 g7 Kg5 Ke6 Qc5 d5 N4a5 d6 Ng4 Kf7 Qa7 Rf8 Qb6 d8R Kh6 d7 Qe3 Rg1 Ra3 Rbc8 Nd2 b8N Ra4 Na6 Qc5 Nc7 Nac4 Na8 Ra2 Bg2 Nf6 Be4 f1Q Rc7 Na7 Rg3 Nc6 Rf3 Ra1 Ra7 Qb1 Ra2 Nf1 Rad2 Qb7 Rfe8 N4a5 Re1 Nd5 Rf8 Rb1 Ree3 Ng3 Re1 Nh1 Ree2 Nf2 Rde8 Rb5 d8Q Rb1 Qd6+ Kg5 Rd8 Nh3 Ke6 Kh6 R8f5 Ng1 Bf7 Rf8 g8R Re8 Rgg5 Rf8 Qf4 Nf6 Rd4 Rd8 Bg8 Rd6+ Kf7 Qa6 Kf8 Qb7 Bc4 e6 Bb5 Nc4 Qe3 N6e5 R5f4 Nc6 Rgg3 Ng4 Kg8 Kg5 Bf5 Kf6 Be4+ Ke7 Rf5 Ke8 Qh6 Nge5 Rg4 Nd7 Rg7 Nf6+
k2K2Bq/r5Q1/B2N1R1P/1npn1N2/4bp1R/5p1q/1Rp2BRb/5BNB w - - 0 1 illegal: Other
1Bn1q1kb/1N1nn1B1/2B1R1N1/pN2N1p1/2N1b3/1Q1pPNq1/4pK2/4R2Q w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 d5 axb5 h5 gxh5 d3 Qe2 d4 Qd2 Ba6 Qd1 Bc8 Be2 e5 Bd2 a5 Bc3 g5 Bd2 Ra6 Na3 Rd6 Bc1 Rd5 exd5 e4 Bf1 e3 Nb1 e2 Kd2 Rh6 Nc3 Re6 Nb1 Re3 fxe3 Qb6 Nf3 Qc7 Ng1 Qd8 Ke1 f5 h4 Kf7 c4 f4 b4 f3 d6 Be7 h6 Qf8 c5 Bf5 c6 Be4 h7 Bd8 h8N+ Kg7 b6 Qf7 b7 Nd7 b8N Bf5 c7 Ne5 c8N Qa7 d7 Be6 b5 Bb3 h5 Ng4 b6 Kh7 b7 Bc2 h6 Qa8 Nb6 Ne5 Nc4 Bf6 d8N Nd7 Nba3 Bg7 Bg2 f2+ Kd2 f1Q Nb5 Qf5 Ke1 Qe5 Kf2 d2 Bb2 Bf8 Nbc6 Bd3 Qb3 Qc7 Re1 Bg7 Bc3 Qac8 b8B Ne7 Nb7 Kg8 Bb2 Qe8 h7+ Kf8 Rh3 Nc8 Rh6 Bf5 Re6 d3 Bd5 Be4 Ng6+ Kf7 Nf3 d1N+ Kg2 Qd6 h8Q Nc3 Qh1 Bh8 Kf2 Kg8 Ba1 Bf5 Be4 Nd5 Bg7 Nde7 Bd5 Qf4 Nc6e5 Be4 Bc6 Qg3+
KbNNR2Q/1RpNq1B1/1pN1NR2/np4Nq/2B2p2/P3q3/3n4/Q2bk3 w - - 0 1 legal: proof: c4 e5 f4 f5 g4 d5 cxd5 g5 b4 h5 b5 a6 fxe5 axb5 Na3 f4 Nb1 Rh7 h3 Rf7 h4 Rf5 gxf5 g4 Bg2 Ra6 Bh3 Rg6 Bf1 Rg5 hxg5 Qd6 Qb3 Qe7 Qd1 Qd8 Kf2 Ke7 e4 g3+ Kf3 h4 d4 g2 d6+ Kf7 d5 h3 e6+ Kg7 d7 h2 f6+ Kg6 d6 Kh5 f7 Kh4 e7 Nc6 e8R Bg7 f8N Nb8 g6 Nh6 e5 Qe7 Ke4 Kg3 Kd5 Kf2 d8N Bf6 d7 Qf7+ e6 Bg5 g7 Ng4 g8N Qg7 e7 Qh6 Ne2 g1Q Nc6 Qg7 d8N Na6 Ned4 Nh6 N4e6 Bd7 Bc4 Qf7 Nd2 Nf5 Bb2 Nb8 Nf3 Bh4 Ng5 Nd6 Bg7 Ne4 Qc1 Bc8 Nd7 Nd2 Kc5 Qg3 Re1 h1Q Rf8 Qgf3 e8Q Qg1 Nge7 Q3h5 Kd5 Qf6 Rf7 Qg3 Qh8 Qgc3 Re5 Qe3 Rf8 Bg3 Rf5 Bh2 Re8 Bg1 Qb2 Qff7 Rf6 Qf8 a3 Qff7 Rc1 Qf8 Qa1 Qff7 Na7 Nc6 Rc3 Na5 Nec6 Qe1 Rd3 Qc1 Kc5 Qe7+ Rd6 Ke1+ Ncd4 Qef7 Rb6 Qe7+ Kd5 Be3 N4c6 Bf2 Ndf8 Bd7 Nc8 Bg1 Nc5 Bg4 Nce6 Bd1 Nd7 Qc3 Ra6 Ndb3 Ra8 Ba7 Rb8 b6 Rb7 Qe3 Ncd4 Qef7 Rb8 Nb7 Kc6 Qe7 Qg8 N7c5 Qh8 Ne4 Kb7 Ned2 N4c6 Na5+ Ka8 Qhf3 Rb7 Bb8 Qh7 Qh1 Qh8 Qh5
1Nkn4/pp2q1K1/N1bn3N/2p1N1R1/1p1q2RR/R6B/B1P1N2q/Q1bB4 w - - 0 1 illegal: Other
2Qq1N2/1p1Q2qQ/Q2n1kpp/4bnN1/1R4q1/1RKBq2N/QP1B2p1/6Q1 w - - 0 1 illegal: No proof kernel
k5B1/5R2/3B1R1b/1rNp1B2/1Q5B/pB1pN3/prPqQ1pQ/1n1b2BK w - - 0 1 illegal: Other
1R6/q1r3Qq/NNbBp1B1/2NpK1NP/4R1pk/RN5n/np2R2p/1B6 w - - 0 1 legal: proof: d4 b5 e4 c5 dxc5 a5 h4 h5 b4 f5 exf5 axb4 Qd3 g5 Qd2 Bh6 Qd1 g4 g3 Bg5 hxg5 h4 g6 h3 Bd2 Rh4 gxh4 Ra6 Bf4 Rf6 Bh6 Rf7 Bd2 Rh7 Bc1 Rh8 Kd2 d5 Ke3 e6 Kd4 Ke7 f4 Kf6 a4 h2 c4 b3 a5 b4 c6 b2 a6 b3 c5 Ne7 h5 Qb6 a7 Qb7 a8N Qc7 g7 Ng6 g8B Nf8 Bd3 Bd7 Ra3 Qa5 c7 Rh7 c8N Bc6 Nd2 b1Q Nc7 b2 Nb3 Rh6 Nh3 Qc2 Na6 Ba8 c6 Rh7 c7 Qad2 Nb6 Rd7 c8R Rb7 Bh7 Qc7 Re1 Qg7 Re4 Qe2 Ng5 Qf1 Rc2 Qh8 Rce2 Rf7 Bb1 Qh3 Bg6 Kg7 f6+ Kh6 f5 Qd3+ Ke5 Rc7 Bf4 Qe3 Qd4 Qh7 f7 Bc6 f6 Qf2 Bd2 Qe3 Bb4 Qg1 Bd6 Qe3 Nac5 Na6 Qc3 Nb4 Na6 Na2 Qd4 Qg7 Qc3 Nh7 f8R Qg8 f7 Qc5 Rb8 Qf2 Nc8 Qa7 f8N Qf7 Nd7 Qg8 Nh3 Ng5 Ndc5 Qf7 Nb6 Qh7 Nf2 Nh3 Qd4 Kg5 Qc3 Nf4 Nh3+ Kh4 Ng5 Qb7 Qf3 Nh3 Qf7 Qa8 Qg7 Qa7
4NR2/R1nN3r/b1r1nB2/n6K/1r1QqBQB/4bBbP/k5q1/3B1NBq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 e4 Kc5 d4+ Kb4 h3 g5 b6 a5 b7 c5 d6 f5 d5 c4 e5 a4 d7 c3 e6 a3 h6 a2 e7 c2 e8B Kb3 d6 Ra7 h7 Qa5 d8Q Qa4 d7 Nh6 Bg2 Na6 b8N Rb7 Nc3 Rb4 Nge2 Nc7 Ng3 Nf7 Be3 Bd6 Nd5 Ba6 Nf6 Be5 Qe2 c1R Rf1 Rc6 Bg1 Bd6 Qe4 Be5 Qc8 Nd8 Bh5 Nde6 d8B Bd6 Qd4 g4+ Kf2 f3 Nbd7 f4 Ne8 Be5 Bh4 Bd6 Rfc1 Be5 Nf1 Bd6 Rc5 Be5 Bh1 Bd6 Rf5 g3+ Ke1 g2 Rf8 f2+ Kd1 Rcc4 Ke2 Rc6+ Kf3 Be5 Kg4 f3 Bg6 Bg3 Kh5 Rg8 h8B Rg7 Bd3 Re7 B8f6 Rf7 Rb1 a1N Be2 Ka2 Bd1 Nb3 Rc1 Na5 b3 Rb7 b4 Re7 b5 Rh7+ Kg6 Rb8 b6 Qc4 b7 Qe2 Ne3 f1Q Rc5 Qfe1 Nf1 f2 Rh5 Qe5 Rh6 Q5e4+ Kh5 Ra8 b8B Qd2 Bh2 g1B Bhf3 Qb2 Ba7 Rb8 Bc5 Rb4 Bd6 Rf7 Bf4 Qd2 Rh7 Qde1 Nd2 f1Q Rg7 Be3 Bg1 Qg2 Nf1 Nc5 Nb8 Re7 Qg4 N5e6 Nd7 Qee2 Rg5 Qh1 Rb5 Qeg2 Rb7 Rg7 Ra7 Rh7+
2R3n1/1Q2NQ2/q1N3N1/b1nq2NK/q1P1B1R1/2n2r1r/br3b2/B1Nk1B1N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Kg4 d5 c4 a5 f4 a4 b4 d3 b6 h6 g6+ Kf6 g7 a3 b5 e4 b7 d4 b6 d2 Nc3 d3 Na2 e3 Kh5 e2 g4 e1B g5+ Ke7 f6+ Kd6 f7 Kc5 g6 Kd4 f5 Ke3 f6 Rh7 Nh3 Bf2 Rg1 Na6 b8N Bb4 f8N Bf5 b7 Qd5 f7 Nc5 Nc6 Ba5 Bb2 Rb8 Nc1 a2 Rg4 Rh8 Qa4 d1N Nh7 Kd2 f8N Nc3 N7g5 Be4 Qb4 Kd1 Ne7 d2 Rb1 Rh7 Ba1 Bd3 Rb2 Bb1 Qb6 Rh8 Qa7 Rh7 Rb6 Rh8 Rc6 Rh7 Rc8 Rh8 Bb2 a1Q Qa8 Qa4 Ba1 Ba2 Qa6 Qe6 Qb5 Qa6 Qc6 Ra8 b8N Ra7 Qc7 Rb7 Nbc6 Rb2 Qb7 Rh7 Ne4 Rh8 Ng3 Rh7 Kh4 h5 Ng5 Nf6 g8Q Rf7 Qh7 Ng8 g7 Rf3 Nfg6 Nb3 Nf7 Nc5 Kg5 h4 Nh1 h3 Kh5 h2 Ng5 Kc2 Nd3 d1Q Nc1 Nh6 g8B Qd5 Be6 Ng8 Bf5+ Kd1 Be4 Nb5 Ng3 Nc3 Qf7 h1R+ Rh4 Rg1 Nh1 Rgg3 Rg4 Rh3+
BBB1r2R/3rrb1n/1Q1Nq3/1rn1b2k/NK6/2N1B2r/2PB1n2/N1Rq1R2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 g4 d5 b4 a5 f4 h5 g6+ Kf6 g7 e5 g5+ Kf7 b6 d3 Kc3 d2 f6 Kg6 b7 a4 f5+ Kf7 g6+ Ke8 b5 a3 f7+ Ke7 b6 Kf6 Bh3 Kg5 f6 h4 Ne2 a2 Qg1+ Kh5 Nd4 d1R Bd2 e4 Nb3 Bd6 f8N e3 f7 e2 Nd7 e1R f8R Be5+ Kb4 d4 Nc3 d3 Ndc5 Qd7 Rc1 a1R N5a4 Qe6 Rf1 Nd7 b8B Nc5 b7 Nf6 g8B Nh7 g7 Ra5 Bc7 Ra3 b8B Bd7 Rh2 Be8 Bb6 Bf7 Na1 Re3 Bg2 h3 Ba8 Re2 Rh1 h2 Qf2 Ng5 Bh7 Re8 Bf5 Nh7 g8N Re7 Nh6 Re8 Rhg1 h1N Rg8 Re4+ Qd4 Nf2 Rh8 Ree1 Bh3 Re3 Nf5 Re2 Bg5 d2 Nd6 Re3 Bf5 Rh3 Be3 Re1 Bd8 d1Q Bdg5 Ra7 Bd2 Rd7 Bge3 Re2 Nb6 Ra5 Nba4 Nb7 Qb6 Nc5 Bh6 Ree3 Bg5 Rd3 Bge3 Rde7 Bfe4 Rd5 Bg2 Rd3 Bgb7 Rd5 Bc8 Rd4+ Nc4 Rdd7 Nd6 Rb5+
1B3qQ1/1K3RBq/r3n2B/1q1NQ1Bq/2bB3N/5R1r/nPQ1q3/4kbbB w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 g4 a5 d6 e5 f3 Kg3 d4 Kf2 f4 h5 g5 e4 b6 e3 f6 h3 d5 h4 b7 h2 f5 a4 g6 h3 g7 a3 f7 a2 f6 e2 Na3 e1Q Qd2+ Qe2 Nb1 Nd7+ Kc6 Nc5 b8B Ne6 d7 Bc5 f8Q Ba6 d6 Bc4 f7 Ra6+ Kb7 Ne7 g8Q Nc6 Nf3 Nb4 Qfg7 Qf8 d8B c6 Rg1 h1B d7 h2 Nc3 Bg2 Nh4 h1Q Qc2 Ke1 Nd5 Bf2 Be7 c5 d8B Bh3 Rb1 a1Q Rg3 Bg1 Bg2 Qa5 Beg5 Na2 Qe5 Qb5+ Bb6 Rh7 Be4 Bf1 Re3 Qh3 Bh1 Rh6 Ra3 Qd3 Rc3 Qh7 Rf3 Rh5 Nf5 Rh3 Nh4 Bd3 Ra1 c4 Bh6 c3 Bcg5+ Nc1 Ra4 Na2 Raf4 Bc4 Bg7 Qfe8 f8B Qeh5 Qa4 c2 Rf7 c1Q Qc2 Qf4 B7h6 Qe8 Bd4 Qff5 Bfg7 Qf8 Nc3 Qd3 Nd5 Qb3+ Nb6 Qa4 Nd5 Qb5+
1b1Nq1b1/NNr1B2q/K1Q1B3/3B1n2/1Q1q1R2/b2NNPb1/n1b4k/1RN4r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Kf4 d4+ Ke4 b4 h5 g5 e5 d6 a5 g6 c5 b6 a4 Kb5 c4 g7 h3 b7 a3 f6 h2 d5 c3 f7 a2 d7 h4 d6 h3 Qc2+ Kd5 Bg2+ e4 Na3 Ke5 Ne2 e3 Rb1 a1Q Rf1 h1B Bd5 Na6 b8N Ne7 g8B Be4 Nc6+ Kf5 Nc4 Kg4 Qa4 h2 Na7 Kh3 Ba3 h1Q Nc1 e2 Ne3 e1B Qc2 Bg7 f8N Qe8 Ne6 Kh2 Nf4 Be5 Nfd3 Nf5 Bge6 Bg3 Qa4 c2 Ka5 Bb7 d8N Qd4 d7 Rc8 Qc6 Bb8 Kb5 Ba8 Nb7 Rc7 d8N Rh3 f3 Bf2 Rg1 Bg3 Ka5 Rhh7 b5 Nb4 b6 Na2 Be7 Rh4 Ka6 Rh7 Ne2 c1B Rd1 Ba3 Nec1 Qg2 Rg1 Qh3 Re1 Rh8 Rd1 Qh7 Rg1 Be1 Rg4 Bh4 Rf4 Bg3 Ne5 Bc2 Ned3 Qeg8 Qb5 Qf8 Qc6 Qe8 Na5 Bh4 b7 Qhg6 Qd7 Bg3 Bc6 Kg1 Bb3 Rh1 Qe6 Qh7 Be4 Rc3 Qf6 Bc7 b8Q Bcd6 Qb4 Bd5 Nab7 Bb8 Qfd6 Bf7 Be6 Bg8 B4d5 Rc7 Qc6 Kh2
q7/b1Rq1kn1/2q1N1R1/4RKB1/1RrNQ1nr/1P1b3B/4N1RQ/1nn2Rn1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 h5 Kd3 c5 Ke4 a5 g4 e5 d4 h3 f4 h4 b6 c4 g5 a4 g6 a3 g7 a2 b7 h2 b3 c3 f6 h3 f5 c2 d6 Qb6 d5 Ra6 d7+ Kf7 d8R Bd6 Qd2 Bc5 d6 Qc7 d7 Ba7 Na3 Nh6 g8R Rc6 Ne2 Ng4 Nb5 Rc4+ Nbd4 Na6 b8R Rh4 Rg1 h1Q+ Rg2 h2 Rg6 Nb4 Rb1 a1Q Re8 Nd5 d8R Qd7 Rb4 Ba6 Rc8 Qa3 Rc7 Nc3+ Kf3 e4+ Kf4 e3 Re5 Bb5 Qd3 Qa6 Qe4 Qc6 Bd2 c1N Ra1 Kf8 f7 Nb1 Kg5 Qg1 Kf4 h1N Kg5 Ng3 Kf4 Qce6 Kg5 Ke7 f8N Kf7 f6 Qc6 Nfe6 Qh1 Kf4 Nh5+ Kf5 Ke8 f7+ Ke7 Nc3 e2 Bh6 e1N Nce2 Nf3 Bd2 Ng1 Bg5+ Kd6 f8Q+ Qe7 Qd8+ Qed7 Qb8 Ba6 Be3 Ke7 Bg5+ Kf7 Rg3 Rc2 Bh3 Bd3 Rg2 Rc4 Ra2 Qa6 Rd2 Qc6 Rd1 Qa8 Rf1 Qh2 Ra5 Qd6 Qh8 Qdc6 Qe5 Nf3 Qh2 Ng1 Re5 Ng7+
5nq1/1RrQ1b2/bK2bN2/4Qq1N/Bn1NqQP1/1N1N4/Rbr3k1/1NB4b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 b4 Kd6 d4 h5 e4 a5 g4 f5 b6 c5 g6 a4 b7 f3 Ke3 a3 g7 h4 b5 a2 b6 f2 Nh3 c4 Nf4 c3 Bb5 f1B Nd3 c2 Ba4 Nf6 g8N Nfd7 Nf6 h3 Nh5 Nc6 b8N h2 b7 Be2 Na6 Ra7 b8Q+ Rc7 Qe1 Bg7 Nac5 Qg8 Nb3 Nf8 Rf1 h1B e5+ Kd7 d6 Ke6 d7 Kd5 d8N Nb4 Qc3 Be6 Nc6 Bf7 e6 f4+ Kf2 Ke4 e7 f3 e8N Rh7 d5 Bd1 Qc5 Bb2 Ncd4 Rh6 Qcb5 Rhc6 d6 Be6 d7 Rc4 Bh6 c1Q d8Q Qcg5 Qdd7 Qf5 Bc1 R4c5 Ke1 f2+ Kd2 Bdf3 Rd1 f1B Qc4 Ba3 Kc3 B1e2 Rd2 Ke3 Qbb5 Bfd5 Nef6 Bf7 Qa5 Bde6 Qab5 R5c6 Qe5+ Qe4 Ndf4 Kf2 Nd3+ Kg2 Rb2 Ra6 Qf4 Rac6 Qc5 Nd5+ Kc4 Nb4+ Kb5 Qf5 Qce5 Rc2 N1d2 Qe4 Rab1 a1Q Ra2 Qc3 Kb6 Bb2 Ndc5 Qcf3 Nd3 Bc3 Rbb2 Qf5 Nb1 Q3e4 Ndc5 Ba6 Nd3 Rd2 Rc2 Bb2 Rc5 Rc8 Rc7 Rc2 Rb7 R8c7
1NQ4R/B1nrKn1b/5PR1/5bN1/Bk1N1b1B/r1qq1N1b/r4BR1/4b2B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 f4 a5 b4+ Kb6 d4 c5 g4 h3 g5 h4 g6 e6 g7 a4 d6 a3 d5 c4 d7 c3 d6 a2 Na3 c2 Rh2 Na6 Bg2 Qg5 d8R Nb8 d7 Ne7 Kd6 e5 g8B e4 Qg4 e3 Nf3 e2 Bb3 Qg7 Be3+ Qd4+ Ke6 c1R Bf2 Rh7 Nc2 Ra3 Ba4 Bh6 Rh8 Na6 Rb1 Rh1 Rg1 a1Q Qg8 Nc6 Qe8 Qc5 Ncd4 Qb1 Kf6 Re7 d8B+ Nc7 Qg8 Rh7 Be7 Be6 Qc8 Qd3 Bd8 Rd7 Be7 Na5 Bd8 Nb7 Be7 Ka7 b6+ Ka6 Bd8 Rd6 b5+ Ka5 Be7 Nd8 b7 Qcc3 b8B Kb4 b6 Bg8+ Qe6 Bh7 b7 e1B Ba7 Bd2 b8N Bg5+ Ke5 Bh6 Bf6 Bg5 Qc8 Rd7 Bf1 Bh6 Rg6 Rg1 Bg2 Rga1 Bg5 Be1 Kf6 R1a2 Bd1 Rd6+ Ke7 Rd5 Ba4 Rd6 Rh1 h2 Rg1 h3 Bgh4 Bg5+ f6 Bh6 f7 h1B f8N h2 f5 Bf4 f6 Nf7 Ne5 Rd5 Bf3 Bg2 Nfe6 h1B Ng5 Bh3 Be4 Bf3 Rg4 Be2 Bh1 Rd6 Rg1 Beg4 Rg2 Bf5 Nef3 Rd7+
R1rnQ3/2n1BQ1B/nKPqrQ2/3kr1N1/N6r/4Q2Q/1b1qb2r/R3NQ2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 b4 a5 f4 e5 h4 g5 c4 g4 f6 Ke6 b6 a4 f5+ Kd6 c5+ Kc6 b5+ Kd7 c6+ Kd6 f7 a3 b7 a2 f6 g3 h6 g2 b6 Bd7 h5 Bg7 f8N Na6 h7 Bg4 f7 Nh6 Ne6 Rc8 Nf3 g1R Ne1 Rg2 Bg5 Rh2 b8Q+ Nc7 b7 Be2+ Kc2 e4 Kb3 d3 Ka4 e3 Ka5 d2 f8Q+ Ke5 Nc3 d4 Qf7 d3 Be7 Qd6 Na4 Kd5 Qa7 Bb2 b8Q Rhe8 Qb1 d1Q h8Q d2 Qhf6 Qc1 Qba8 d1R Kb6 Qd2 Rg1 Rc1 Rg8 Rc4 Bh3 Rh4 Bf5 R4h3 Bh7 Rh4 Q7g6 Nf7 h6 Nd8 Ng5 Bc4 Qc1 e2 Qf1 Bd3 Qgf6 Bb5 Qcc3 Bc4 Qe3 Bd3 Rc1 a1N Rd1 Nc2 Ra1 Nb4 Q7b7 Nb5 Qd7 Bc4 Qdh3 Na6 Qb7 Bd3 Qbd7 Nbc7 Rh8 Rg8 Qe8 Rg6 Qff7+ Re6 Qe5+ Kc4 Qef8 Ne8 Bf5 Ra8 h7 Nec7 Nef3 e1R Be4 Re3 Ne1 Be2 Bc2 Rf3 Qe3 Nb7 Qd8 Rf5 Re8 Rc8 h8Q Ra8 Qhf6 Re5 Bh7 Kd5 Qd7 Nac5 Rb8 N5a6 Qde8 Nd8 Rb7 Rh1 Ra7 Rc8 Ra8 Rh2
3b1NB1/2N4b/PB2B1Q1/2rbR1B1/2nR1b1Q/5q1b/bbR1K2n/1k3rBB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 f4 Kd6 g4 c5 a4 b5 a5 h5 f6 e5 f7 c4 a6 c3 f5 e4 f6 e3 g6 h4 g5 b3 g7 e2 g6 h3 Bg5 b2 Qc2 b4 Rh2 b3 Nf3 Nd7 Nh4 Rh5 Na3 b1B Bg2 b2 Bh1 Ba2 Rd1 Be7 f8R b1B f7 Ngf6 g8B Ne5 g7 Nc4 Re8 Ng4 f8B Ra7 Qf5 c2 Ng6 c1B Be6 Bf4 g8B Qd7 Bg7 Bd8 Nf8 Qc6 Qg6 Rf7 Rf2 h2 Rd3 Kc7 d6+ Kb6 d5 Ka5 d7 Ka4 d6 Qf3 Rd4 Kb3 Nb5 Kb2 Nc7 Bd3 Rg2 Kb1 Be5 Be3 Bg3 Bf4 Bf2 Bf5 Bg1 Be4 Bf6 Rc5 Bg5 Bc2 Qg7 Bh7 Qg6+ Rff5 Re7 Nce3 Kd2 e1B+ Kd3 Bc3 Rc2 Bb2 Re8 Be7 d8Q Rf6 Kd2 Nc4+ Ke1 Rf7 d7 Rff5 Bef7 Bf6 Re5 Be7 Be6 Bf6 Bg2 h1B Qe7 Nh2 d8B Qa8 Bc6 Bd5 Ke2 Bd7 Ne8 Bc8 Bb6 Bd7 Nc7 Qb7 Qeg7 Bd8 Q7h6 Rf7 Qh4 Rf6 Bef7 Bh3 Be6 Bd2 Be8 Rf1 Bc6 Bf4 Bed7 Bf7 Bh1 Bd5 Bg4 Qa8 B4e6 Qb7 Ba7 Qb3 Bb6 Qf3+
4NBK1/2bb1r2/2n5/Q3BnR1/Qqq3qr/1R1b1BqB/1Qn2k1P/B3NB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 c5 Kf4 a5 Kf5 g5 d4 f6 Kg6 a4 Kf7 a3 b4 a2 e4 c4 b6 c3 b5 g3 d6 g2 b7 f5 b6 Kc6 e6 f4 d7 g4 e5 Kd5 e7 Ke4 e8B g3 e6 c2 e7 f3 d5 f2 d6 Rh5 Na3 Rh6 Nb5 Rh8 Ba3 Ke3 Nc7 c1N Qa4 Nc6 b8B Ra7 b7 Bg7 Rb1 a1Q Rb3+ Qc3 Nf3 g1Q Ne1 g2 Bb2 Be5 Ba1 Nd3 Kf8 Nf6+ Kg7 Bf4 Bh5 Ndb4 e8B Nc2 Bf3 Ng8+ Kf7 Qg5 d8Q Qh4 Bd7 Nge7 Ne8 Nf5 Qda5 Qd3 Be6 Bd7 Bc7 Qg3 b8Q Rh4 Qbb4 Rb7 Qba3 Be5 Qb2 Qf4 Kg8 Qb4 B1e2 Qf1 Rg1 Qdc3 Bb5 Qfc4 Bb8 f1B Ba6 Bc8 d7 Kf2 d8B Bd3 Be7 Bd7 Bf8 Bg3 Be5 Rc7 Rh1 g1Q Bb5 Qg2 Rg1 Qh3 Ba6 Bf4 Rg5 Qg3 Bed5 Q3d4 Bg2 Qe4 Bh3 Qef3 Bb5 Qfg4 Ba6 Bc8 Bb5 Rf7 Bf3 Bd7 Bf6 Bc7 Be5 Be4 Ba6 Qcc5 Bd3 Qcc4 Bdf1 Bd3
q2Q2R1/2R5/4QQ1r/2nb1Q1n/1NrRr3/1k1N1n1K/1b1QB1P1/b1QqB2r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 d4 e5 f4 c5 Kf2 a5 d6 h5 d5 h3 Kg3 e4 d7 h2 d6 c4 f6 Ke6 b6 c3 b7 a4 b5 a3 f5+ Ke5 b6 a2 f7 e3 f6 e2 Na3 e1R Nf3+ Ke4 Ne5 c2 Bd2 Kd5 Rc1 Nc6 b8Q a1B b7 Bg7 f8Q Re4 f7 Raa4 Qa8 Nf6 b8R Kc5 Qa6 Rh6 Be2 Bb7 Qh8 Ba8 f8Q Nd4 Qh7 Bb7 Qf5 Nf3 Qf7 Qa5 Rg8 Kd4 Rg1 h1Q Qd3+ Kc5 Q7e6 Qa8 Qf1 Rad4 Rd1 c1N Nc2 Bh8 Nb4 Nb3 Bc3 Bc6 Rd2 Bg7 Qfb1 Bh8 Rc1 Qd1 Rcc2 Bb7 Qc1 Bg7 Qe3 Bc6 Rd3 Kb5 Bd2 Ka4 Be1 Bb7 Rcc8 Nc5 Qed2 Rc4 Rc7 Bc6 Rd5 Kb3 Ned3 Bb7 d8Q Bc6 Qde7 h4+ Kh3 Nh5 d7 Bgb2 d8Q Bb7 Rd4 Bd5 Q7f6 Ba3 Qdf4 B3b2 Kg4 h3 Re7 h2 Kh3 Qa3 Rc7 Qa8 Qfd2 h1R#
1Nqr1Q2/kbb4R/2B5/2RbBBn1/2r1rQ2/1KR4B/1P2N3/BBb2qnq w - - 0 1 illegal: Other
RnBn1Qr1/8/nk3BqN/b3R1q1/B2R1r1r/2QRq1Nb/P6K/1n3RR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kd7 d4 h5 f4 e5 Kf2 b5 Kg2 c5 d6 Kc6 g6 c4 g7 b3 d5+ Kc5 f6 b2 d7 c3 g5 h4 f7 b4 f5 e4 f6 e3 g6 c2 d6 b3 Nh3 e2 Rg1 e1Q Nc3 b1N Ne4+ Kb6 Ba6 b2 Qf3 Nd2 Kh2 b1Q Ng3 Qe4 Ng5 h3 Bb2 c1R Qc3 Qde7 d8R Qf5 d7 Nh6 g8R Rf1 g7 Qe3 Re8 Qc1 d8R Bb4 f8R Rf4 f7 Nb1 Rd3 Ba5 Re5 Qg6 Rfd8 Bf5 f8Q Nf7 Rf1 Rhh4 R8d4 Nd8 Nf7 Bc8 Nh6 Bg4 Kh1 h2 Bc8 Bf5 Kg2 h1N Rg1 Bh3+ Kh2 Nf2 Rh8 Qf6 g8B Ne4 Bb3 Nc5 Ba4 Nca6 Rg8 Nd2 Rb1 Qc2 Rbf1 Qg5 Ba3 Qb1 Be7 Qc2 Bf6 Nb1+ Rd2 Qcg6 Rdd1 Ra7 R1d3 Rc7 Rg7 Rc4 Ra7 Rc7 Ra8 Rg7 Be8 Rg8 Bed7 Rh5 Ba4 Rhh4
kqR5/4Rrnb/qQ6/1R2QR2/Q3bN2/1r3P2/KNR1Bn2/BRb1nb1r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 d4 c5 Kd2 Kc7 Kc2 Kb7 Kb2 a5 g4 e5 b6 h5 f6 h3 f7 c4 d6 c3+ Ka2 h4 b5 e4 d7 h2 g5 a4 g6 a3 d5 c2 g7 h3 d6 e3 Ne2 Rh7 Nd2 Nc6 Nf4 e2 Rb1 e1N Be2 Nce7 Nc4 Rb8 Nb2 Nh6 g8R Ng4 Rg7 Nf5 Rf1 Qe8 d8Q h1B d7 Be4 f3 h2 Rf2 h1B Qf6 Ka8 d8Q Ba6 Qe5 Bg2 Q1d7 Be7 f8R Bg5 Re7 Ng7 Rf5 Bf1 Rh2 Nf2 b7+ Ka7 Bd2 c1R Bc3 Rd1 Qc6 Rd7 Rg2 Rh1 Qa5 Rc7 Qa4 Qh8 Ne6 Bc1 Nf4 Rf8 b8R Rb7 Qh6 Rf7 Rc8 Qd8 Qg6 Qd6 Rh2 Qb8 b6+ Ka8 Qgf6 Rd7 Qg6 Rd3 b7+ Ka7 Kb3 a2 Rg2 a1Q Qge6 Qd6 b8R+ Qc7 Rb5 Qb7 Rc5 Ka8 Qb6 Qb8 Rc8 Re3 Qc4 Qa5 Qa4 Bab7 Ka2 Qa6 Rg6 Bd3 Rgc6 Be4 Bd4 Rb3 Rc2 Bbd5 Nc4 Bb7 Ba1 Bd3 Nb2 Bbe4 Rh5 Bh7 Rf5 Be4
7B/1n1Bb2B/1Qb5/R2rnbk1/qQ3b1r/R1PNQq2/3K2BB/r3nBN1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 e4 Ke7 g4 a5 b4 f5 e6 h5 g6 Kf6 g7 d5 b6 d3 b7 d2+ Ke2 f4 b5 a4 e5+ Kg5 b6 d4 e7 a3 e8Q a2 e6 f3+ Kd3 f2 e7 h4 Qe1 h3 Na3 h2 Bb2 d1N Nc4 Nh6 g8B Qd7 Bd5 Ne3 Kd2 d3 Ne5 Nf7 Bdg2 Nc6 b8B Ncd8 b7 Qa4 Qc6 Rh5 e8B Bf5 Bd7 Be7 Qb6 Rh4 Bd6 Ra5 b8Q Rd5 Bd4 Nb7 c3 Nc2 Qc1 Ne1 Qb4 Kh6 g5+ Kh5 g6 Kg5 Ke3 d2 g7 d1B g8B Bf3 Nd3 Ne5 Kd2 B3e4 Bh7 Bf3 Rb1 a1B Rb3 Bb2 Ra3 B3e4 Qc7 Bf3 Qcb6 B3e4 Be2 f1Q Bc7 Qf3 Bef1 Nc6 Bh8 Ne5 Q4c5 Qc6 Ra5 Qa4 Qd4 Bba3 Qcb2 Bad6 Q2b4 Ng4 Qf2 Bf4+ Qfe3 Ne5 Bd8 Rd6 Be2 Nc2 Bc7 Bc6 Bb8 Rd5 Nh3+ Kg4 Qd6 Nf7 Rg1 h1R Ra1 Bfg5 Ra3 Ra1 Ng1 Ne1 Qdb4+ Kh5 Bh2 Ne5 Bef1 Bf4 Be6 Kh6 Bd7 Kg5
1n1Rr3/r1QNNk1K/N1n1r1Nq/1b6/BR3b2/2P2BR1/Rrb1RB1n/2q5 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 e5 Kd3 d5 g4 a5 b4 h5 f4 h4 g6 h3 f6 h2 b6 a4 b5 a3 f5 a2 b7 Qc7 g5 Qe7 f7+ Kd8 g7 Bd7 b6 Ra6 g6 Ba4 f6 Qe8 Nf3 Ra7 Be3 Nc6 b8R+ Kd7 b7 Ke6 Nh4 Ra6 Bf2 Bd6 f8R Nge7 g8R Qc8 g7 Bc7 Rd8 Kf7 Rg1 h1Q Ng6 Qh6 Nc3 Bd6 Bg2 e4+ Ke2 e3 Kd3 e2 Qc1 e1R Bf3 Re2 Rge8 Bf4 Rg3 Re6 Qe3 Rf8 Qe5 Rb6 Qc7 Rb1 Ra8 Rh8 b8N Rb2 Rb1 a1R Na6 Nb8 Ra7 Bd7 Ra8 Nec6 Ra7 Rd6 Re2 Re8 Ra8 Rde6 Ra7 Rb3 Rb2 Raa3 Rb7 Rb5 Ra2 Rb2 Rb4 Ra4 Nd1 Ra5 Ne3 Ra4 Nf5 Ra5 Re3 Ra4 Nfe7 Ra3+ Ke2 d3+ Kd2 Ra5 Kc3 d2 Kd3 d1B Re2 d4 c3 Qb7 Qe5 Qa7 Ke4 d3 Kf5 Ra3 Qc7 d2 Nh4 Qe3 g8B+ Kf8 f7 Bc2+ Re4 d1N Nhg6+ Kg7 f8N Qc1 Bf7 Na5 Bg8 Bb5 Nd7 Nac6 Bh7 Bca4 Rb4 Kf7 Be3 Nf2 Bb6 Ng4 Bf2 Kg7 Bg8 Nh2 Bf7 Rd6 Bb3 Re6 Bd1 Kf7 Bb3 Bc4 Bd1 Bab5 Ba4 Bb3 Nac5 Bd2 Nf4 B3c4 Bd1 Ra5 Ba4 Ra7 Na6 Qf8 Kg5 Bb3 Kh5 Bc2 Nfg6 Qg7 Re3 Qe5+ Kh6 Qf4+ Kh7 Qg5 Re5 Bf4 Re2 Qh6#
5R2/Qr1q2BK/2r5/R1Q2B1k/1n2bbrn/1PN1R1bb/n2RqBR1/N5R1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 c5 Ke4 h5 d4 a5 f4 e5 g4 c4 f6 Kg6 b6 c3 b3 c2 b7 a4 f5+ Kh7 d6 h3 d5 h4 d7 a3 g5 h2 f7 h3 g6+ Kg7 d6 a2 Nc3 Kf6 g7 Nh6 g8R Rh7 Rg2 Nc6 b8Q Ra6 Qd4 Nb4 Be3 c1N Qc5 Rc6 Qba7 Qe7 d8R Qd7 Be2 Rg7 Re8 Rg4+ Bf4 Kg7 f6+ Kg6 Nf3 Nf5 Rhg1 h1Q Ne1 h2 Nc2 Bh6 f8R Kh5 f7 Nh4 Bc4 Bg5 Be6 Bh6 Bf5 Bg5 Rb1 a1R Re6 Ra5 Ra1 Rb5 Ra5 Nca2 Na1 Rb7 Ree8 Rg3 Be3 Bf4 Bf2 Rg4 Rb1 Qd1 Re7 Qe8 d7 h1B d8R Qc2+ Rd3 Qe2+ Re3 Be6 Rd7 Qd8 Rd3 Qd7 Rg1 Rg3 Bh7 Bh3 Rd2 Rg8 Bf5 Rg4 Be6 Ng6 Kf5 e4 Red3 e3 Kf6+ Bg5+ Kg7 Nh4 Bf5 Bh6+ Kh7 Bf4 Rh2 Be4 Rhg2 Qd1 Rd8 e2 Re3 e1B Rh8 Qe2 Rf8 Qe6 Re8 Rb8 f8B Rb7+ Bg7 Qd7 Rf8 Bb8 Bg3 Bf2 Red3 Be3 Bf2 Bg5 Rf3 Bg3 Re3 B5f4
3nnB1Q/kb4BB/b3NBR1/b3rN2/1q1nN1P1/r5Rn/NK6/1N1qR2q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 g4 Kc7 d6+ Kb6 f6 c4 f5 h3 d5 h4 f7 h2 f6 h3 d7 a4 d6 c3 Ne2 a3 Ng3 e4 Rg1 h1N Bb2 e3 Ne4 e2 Qd4+ Kb7 b6 e1Q b5 a2 Bd3 h2 Rg3 Qe7 d8R Ra4 d7 Bh6 f8N Ka8 f7 Nf6 Ne6 Re8 f8B Nc6 b7+ Kb8 Qe5+ Ka7 b8N Bd2 Na6 Nf2 Nb4 h1B Ng7 Ra6 Nf5 Nh3 Kb3 c2 b6+ Kb7 Bc3 c1N+ Kb2 Qd1 Bg7 Ka8 b7+ Ka7 Bf8 Ne2 b8B+ Kb7 Ba7 Ra3 Bad4 Qc5 Bc2 Ka7 Bd3 Ba6 Bc2 Ng8 Qh8 Nf6 Rc8 Nd8 Rc6 Re7 Rb6 Ne8 Rg6 Bg2 Bf6 Nd4 B6g7 Re5 Bf6 Nb7 d8N Qd6 Ne6 Nd8 B6g7 Be1 Bd2 Bf3 Bg5 Qe7 B5f6 Bd2 Nd5 Ba5 Nb4 Qd6 Nbc3 Qh1 Re1 Qb8 Nb1 a1Q+ Kc1 Qd6 Na2 Bg2 Bd3 Qc3+ Bc2 Qf3 Kb2 Qd1 Bd3 Qb4+ Ka1 Qdd2 N4g5 Nb5 Nfd4 Be4 Rh6 Bg2 Bh7 Qc1 Rg6 Qcd2 Nf5 Bgb7 Ne4 Qd3 Ne3 Nd4 Nf5 Qd6 Kb2 Qd1 Nac3 Qe7 Na2 Qb4+
2n2B2/1n3nB1/1b1N2rQ/nN4r1/1qRPr1N1/1B4q1/3NkNQR/Kb4qN w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 g4 Kd6 b4 c5 d4 a5 Kd2 e5 Kc2 h5 Kb2 c4 f6 h3 b6 h4 f7 e4 g5 e3 b5 h2 f5 a4 g6 h3 b7 e2 b6 e1Q g7 Ra7 f6 Qc7 Qf3 Na6 b8N Rh4 b7 Ne7 g8N Bf5 Nd7 Nc8 b8N Nc5 Nc6 Ra5 Nh6 Nb7 Ne2 c3+ Ka2 c2 Na7 a3 Nc5 Qb6 Ng3 Qbb4 Bc4 Be7 Qf1 Bd8 Qg2 Bb6 Nd3 Rf4 Bb3 Qec3 Rf1 h1Q Nf2 h2 Nhg4 Bd3 Rg1 Re4 Bh6 Qc7 Nd2 Qb8 Rad1 c1N+ Ka1 Rb5 Bg7 Bb1 Rde1 Nd3 Rc1 Ne5 Rge1 Kd7 d6 Rc5 Nb5 Kc6 f8Q Qf1 f7 Qh1 Qh8 a2 f8B Nf7 Ba4 Kd5 Rc3 Rc6 Qh6 Qc7 Rec1 Qf1 Rd3 Qg1 Rc2 h1R d7 Rh5 d8N Ne5 Rc1 Rg6 Nf7 Rhg5 Ngh1 Qcd6 Rh3 Qb8 Nfd6 Nf7 Ne8 Qg3 Rh2 Qa5 Nb3 Qb4 Kb2 a1N Rc2 Qbd6 Nd2 Nb3 Rc6 N3a5 Ka1 Qb4 Rc3 Ke6 Bb3+ Kf5 Rc4 Kf4 Ngf6 Ke3 Ned6 Ke2 N6g4 Rd5 Qf4 Rf5 Qh6 Rfg5
r1nN2Q1/2rn1n2/Rb1b2B1/2qnqP2/RN1BNNBK/8/NR3q2/1B1b2k1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 b4 Kd6 g4 e5 f4 a5 Kf2 h5 Kg3 c5 g6 c4 b6 a4 g5 e3 f5 e4 b5 c3 g7 c2 g6 a3 b7 a2 b6 e2 Nd2 e1N Ne2 e3 Bh3 Qe7 Nf4 e2 Bg4 Nf3 Rh4 e1N Bb2 c1Q Qb3 Nd7 b8N Nc2 b7 Ne3 Na6 Nfe5 b8R Nf7 Nb4 Rh7 Rb5 Qe5 Ne4+ Kc7 Rb8 Bb7 d6+ Kb6 d5 Qc5 Bd4 Ne7 g8B Nc8 g7 Be7 Rd1 a1B Na2+ Ka5 Qc4 Kb6 Rf1 Bc3 Ra1 Bb4 Qb3 Bd8 Kh3 Kb5 Kg3 Bb6 Kh3 Nf8 d7 Bc6 d8N Nd7 d6 Nd5 Qg3 Kc4 Qg2 Bb5 Nc6 Ba4 Kg3 Ba3 Ncb4 Bd1 Qg1 Nd8 Be6 Nf7 g8B Rg7 Nd3 Bb4 Bh7 Ba3 Bg6 Bb4 Rh2 h4+ Kh3 Rh7 Rb2 Ba3 Ndb4 Rg7 Kg2 h3+ Kg3 h2 Rb7 h1Q Ra7 Qg2+ Kh4 Qf2+ Qg3 Ng5 Ra4 Re7 Bg8 Nf7 Ra6 Nf8 Ra4 Rea7 d7 Rc7 d8N Nd7 Ra6 Qa5 Nbc6 Bd6 Ncb4 Qc5 Nac3 Bf3 R1a4 Bd1 Nca2 Qe6 B6h5 Ng5 Bf3 Nde7 Bh7 Qee5 Nec3 Nd5 Be4 Nf7 Bb1 Qfe3 Qg8 Qe2 Bg1 Q2e3 Ne4 Kd4 Nf2 Qd2 Bg4 Ke3 Bg6 Qdc2 Bh3 Qe2 Ne4+ Kf3 Bd4 Qe3 Nd2+ Kf2 Ne4+ Kg1 Bg4 Qf2+
kB5K/2Q1n1bN/1q4RR/B1Pbb3/2B2b2/BqBQn3/B1Qrr3/2n3qN w - - 0 1 illegal: No possible last move, all moves rejected
3B1Q2/NBB1RbN1/q2r1knr/N1P3r1/q7/1q1n1Bq1/Rb1N2N1/K1R3n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 h5 c4 a5 Kc2 d5 g4 e5 b4 d3+ Kb2 d4 b6 d2 b7 d3 c5 h4 g6+ Ke7 g7 e4 b5 h3 f6+ Ke6 f5+ Ke5 b6 h2 g5 e3 f7 e2 f6 e1R g6 a4 Ne2 Qd6 Bg2 Be7 f8N Be6 f7 Bg5 Nf4 Nc6 b8B Nd4 b7 Re4 Qf1 d1Q Bc7 d2 b8N Ne7 g8N Ne2 g7 Rd4 Bb7 Rh6 Ng2 Bb3 Rg1 h1N Ne6 Nf2 f8R Rg4 Rf7 Ra6 Rh1 Ng6 Ne7 Bc4 g8B Nd3+ Ka3 Qc2 Nc8 d1Q Ng7 Be3 Bd8 Rg5 Na7 Qe1 Bd2 Qg3 B2a5 Qe6 Rc7 Rd6 Qf8 Bd2 Rc1 Ng1 Re7 Bc3 Qe8 Kf6 Bac7 Bd5 Nd2 Qd7 Nc4 Bb2+ Ka2 a3 Nbc6 Qb3+ Kb1 Qdg4 Nd2 Qgc4 Be6 Qa6 Bg4 Bf7 Na5 Qe6 Bgf3 a2+ Kc2 Qd5 Qf8 Qe6 Rcb1 Bc1 Rb2 Qd5 Rab1 a1Q Kc3 Qa4 Ra2 Ba3 Rc1 Q4b5 Kc2 Qa4+ Kb1 Qdb3+ Ka1 Bb2+
b3bRK1/nR1rP3/1qbq2R1/BBnBR1Q1/1b3qRR/3Q2N1/4r2r/k2N4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 h5 g4 c5 g6 f5 d6 a4 d5 c4 g7 a3 g5 f3 b6 f2 g6 f4 b7 f3 d7 a2 Ke6 h4 Kf7 c3 d6 c2 e5 Kb3 e6 h3 Bd2 h2 Ne2 Be7 Ng3 Ra7 Nc3 Bf6 Bb5 Nc6 b8R f1R Rb7 Qb6 d8R f2 d7 Re1 Re8 f1B d8Q Bg2 Qf3 c1Q Qfd3 Rh6 Nd1+ Bc3 Qg5 Nf6 g8B Re2 g7 Nd7 e7 Rh3 Rf8 Nc5 Rb1 a1Q Rg1 Ka2 b4 h1B Re1 Re6 Re5 Rh8 Be1 Qa3 Rc1 Bd2 Rc4 Bd7 Rg4 Rh2 Rbb8 Rd6 Rbd8 Q3c1 Rd4 Qa5 Ba4 Rd5 b5 Ne4 b6 Qab2 b7 Ka1 Qf3 Nc5 b8R Rb7 Rh4 Na7 Qe4 Qd4 Qd3 Be4 Bc6 Rb2 Rb4 Qcc4 Bb5 Qb6 Rb8 Qc1 Rc4 Rd6 Rb4 Ba8 Rb7 Bhc6 Rc4 Ba5 Bb4 Rbe2 Bd2 Qg1 Rcg4 Qd4 Be1 Bb4 Bd2 Ba3 Ba5 Bb4 Bh7 Rc2 g8R Rce2 Be4 Be8+ Kg7 Qd5 Kh8 Qe6 Rg6 Qf4 Bd5 Rd7 Kg7 Qef6+ Kg8 Qd6
4BnNb/K2r3N/3B1n2/1rQQ3N/1r5r/kNq3RR/r3bPQN/r2N3n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 b4 c6 g5 h3 g6 e6 b6 a4 f6 h2 b7 a3 g7 h4 f7 a2 b5 h3 b6 Ra7 Qh5 Nd7 b8Q+ Rc7 b7 Ngf6 g8N Qe7 Ba3+ Nc5 Bb5 Bg7 f8N e5+ Kc4 e4 d4 e3 Qa8 e2 b8N e1R Nf3 Qe3 Na6 Bf5 Nc3 Bg4 Nd1 Re2 Nh7 Rb7 Rc1 a1R Rc3 Rea2 Rg1 h1N Rg3 Nd7 Nh2 Nf8 Kb4 Ne4 Ka5+ c5 Be8 Rb4 Rb3 c4 Nc5 c3 Ka6 c2 Ka7 c1R Rc3 Qd2 Nb3 Be2 Rcf3 Rc8 Qf5 Kc7 d6+ Kd8 d5 Nf6 d7 Kc7 d8N Kd6 Qb7 Rc5 Ne6 Rcb5 Nf4 Qc1 Nh5 Qc3 Na5 Kc5 d6+ Qe5 Qc2+ Qc3 Nb3+ Kc4 Nd4 Kc5 d7 Kc4 d8Q Kc5 Ng4 h2 Re3 Kc4 Qg2 Kc5 Nb3+ Kc4 N8h6 Rg8 Rh3 Bh8 Reg3 Ra4+ Qa5 Rb7+ Ka8 Ne6 Qd2 Rb6 Qa7 Rb5 Rh4 Rf8 Bd6 Rg8 Bc7 Kb4 Qdd5 Ka3 Bb8 Rf8 Bc6 Rd8 Ng8 Nf8 Bd7 Qc4 Be8 Qc3 Na5 Rab4 Qac5 N6d7 Ka7 Nf6 Rd3 Ng3 Nb3 h1R Bd6 Rh3 Nh2 Nh1 Rg4 Rh4 Rh3 Qc2 Rg7 Qc3 Rgg3 Rd7+
k1bR2BN/rNR3b1/3BN1n1/n1R1N1Bb/q1b3n1/PN3Q2/6b1/rb1BK3 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 e4 Kd7 g4 f5 d4 c5 e6+ Kc7 g6 b5 d6+ Kb7 g7 h5 d7 h4 d5 h3 e7 h2 e8R b3 a3 b4 e5 f4 g5 b2 d6 c4 e6 c3 g6 b3 e7 f3 Bg5 c2 Nd2 c1N Be2 Na2 Rc1 b1B Rc5 b2 Nb3 Nf6 g8B Nc3 g7 Qa5 d8B Ra7 d7 Ka8 Bc7 Bg6 d8N b1B Ne6 Nc6 Bd6 Qa4 Rd8 Ncd5 e8N Nf4 Qd3 Rh3 Bd1 f2+ Kd2 f1B Bg4 Ne5 Rc7 Qb5 Bb4 Be4 Nf3 Bg6 Bf7 Nc6 g8N Bg7 Nh6 Bg2 Nd6 Na5 Nb7 Qa4 Bd6 Bc2 Rc1 Bh5 Ne5 Ng6 Bg8 Re3 Nhf7 Re1 Bf3 Ng4 Nh8 Bf1 Be2 h1B Qf3 Bd3 R1c3 Bhg2 R3c5 Ra1 Bd1 Bb1 Ke1 Bc4
nk1B2RR/2n1r1R1/3rNn2/b1nB1KRb/3P1NQ1/2n2B2/q3N1b1/2B1n2R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 b4 h5 f4 a5 d4 h3 f6 c4 f7 a4 g5 a3 g6 h4 f5 a2 g7 h2 f6 c3 Nd2 h3 Bg2 c2 Ndf3 Ra7 Ne2 Ne7 g8B Nd7 d6+ Kb8 b6 Nd5 b7 Nc7 b5 Rh6 Bf4 c1N Nh4 Nb6 d7 Nba8 Qe1 Bb4 f8R Ba5 f7 Rd6 Kf5 e4 Qg3 e3 Ng6 Qe7 Rb1 a1N Bf3 Nab3 Qg4 Na2 Rbg1 Nc5 Re8 Qf8 Re7 Nc3 Re5 Qh6 f8N Qg7 Be6 Qg8 d8B Bd7 Bfg5 Be8 Ngf4 Bh5 Ba2 Qb3 N8e6 Qa3 Bad5 Qa2 Nc1 e2 Rg2 e1N Nce2 Rd7 Rg3 Ra6 Rgg1 Re7 Rg2 Ka7 b8R Rd6 Rc8 Ne8 Rc7+ Kb8 Rd7 Nec7 b6 N7a6 b7 N6c7 Rhg1 h1B Rf1 Re8 Rg7 h2 Rg3 Bg2 Rh1 Re7 Rh3 Be8 Rh8 Bh5 Nh3 Ra6 Bc1 Rc6 Nhf4 Rd6 Rg1 h1N Rf1 Ka7 b8R Nf2 Rg1 Nfe4 Rh1 Red7 Bh4 Nf6 Rbg8 Re7 Bg5 Re8 Bh4 Kb8 Bg5 Nfe4 Bd8 Nf6 Kg5 Re7 Rf5 Be8 Re5 Bc6 Kg6 Bd7 Rg5 Be8+ Kf5 Bh5
bb1K2rB/3Rnbb1/1r1q4/3Q1Pk1/2Q1BN2/Qr4B1/N2Q2r1/b1n2QRQ w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 h5 Kc5 a5 f4 e5+ d6 e4 b4 h3 d4 c6 g4 a4 b6 a3 b7 h2 b5 h4 g5+ Kf7 d5 h3 f6 Kg6 f5+ Kf7 g6+ Ke8 b6 e3 g7 Kf7 Nc3 a2 Nge2 Ne7 d7 Ra3 Kd6 c5 Nf4 c4 Bd3 e2 Rg1 h1B Bb2 e1R Be4 Re2 Qf1 h2 Rd1 a1B Na2 Nbc6 b8Q c3 b7 c2 Qa8 c1B b8B Rg2 Rd3 Qb6 d8Q Be6 Qc7 Rb3 g8Q+ Ke8 Qh7 Bg7 f7+ Kf8 Qa5 Rg8 Qd2 Nd4+ Qc6 Qb4+ Kc7 Ne2 d6 Qd4 d7 Qd6+ Kd8 Bd5 Qdc2 Bd2 Qc8 Nc1 Q8c4 Be3 Qd2 Ba7 Bc7 Bb8 Qh5 Bh6 Rd4 Kg7+ f8Q+ Kh7 Rd3 Bf7 Bh8 Rb6 Qhf3 Bhg7 Rd4 Kh6 Qa3 Be8 Qff7 Kg5 Qfd5 Rg4 Qde1 Bf3 Qd2 h1R Qdg2 Rh6 Qh1 Rb3 Qe5 Qe6 Bb7 Qc6 Ba5 Nd5 Be1 Nc7 Kc8 Qf6 d8Q Rg2 Bg3 Nd5 Qdd6 Ne7+ Kd8 Bd5 Ba8 Bdf7 Be4 Bd5 Qdb4 Ba8 Qd2 Qc6 Qee6 Qc5 Qf7 Rhb6 Rd7 Qd6 Qfd5 Bf7#
1bq1Nr2/4BN2/1RQ1n1k1/1b1BP1n1/B1K2BQb/1n2bn2/4BN2/3R1bBr w - - 0 1 illegal: No possible last move, all moves rejected
7q/Br1n1n1K/nnQ1BRPb/1RQbr3/N2B3k/n1n2BR1/3BN2B/1q6 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 a5 Ke4 c5 g4 h5 b4 c4 d4 f3 b6 h4 g6 Kf6 d6 c3 g5+ Ke6 b5 f2 b7 a4 d7 f6 g7 a3 b6 a2 Rh3 c2 Nc3 Na6 b8R Rh7 b7 Nh6 g8B+ Nf7 Rg3 h3 Bg2 f1N Bd2 c1N Bf3 h2 Na4 h1Q Qc2 Bh6 Qc5 Nh2 e3 Qb6 d8B Ne2 Rf1 a1N Bc7 Nc2 g6 Na3 d5+ Kd7 Kf5 Nc3 d6 Qb1+ e4 Ng4 Bb6 Nge5 Ba7 Ke8+ d7+ Kd8 Ke6 f5 Kf6 f4 Ne2 Qh3 Bh1 f3 Bg2 f2 Bf3 Ng5 Be6 Ngf7 Rd1 f1N Rc1 Nh2 Rf1 Nec4 e5 Nb6 Rf2 Be3 Rf1 Rh5 Kg7 Ng4 Kg8 Bh6 Kh7 Qh2 Bc4 Qh4 e6 Nge5 Bcd5 Nd6 Ba2 Ke7 Bb3 Kf6 d8B+ Kf5 e7 Be6 e8Q Nf7 Bf6 Bd5 Qec6 Ned7 Bd4 Qf6 Rh8 Rc8 b8B Rc7 Rf8 Rb7 Bc4 Qd3 Rb1 Rg5 Rb5 Qb1 Rh3 Qd8 Bh2 Qb8 Bg2 Kg4 Rg3+ Kh4 Bf3 Re5 Ba2 Be4 Be6 Bd5 Qc4 Nd8 Rf6 Nf7 Q4c5 Qh8#
k1B2r2/1bP1R3/2B3Rb/1N1BqBB1/1NQ4K/N1rr1R1r/2r2n2/rnq3R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 d5 Kg3 Kd7 c4 Kc7 e4 Kb7 b4 f5 b6 h5 e6 a5 e5 a4 c5 a3 b5 d3 e7 d2 e8R a2 e6 d4 g6 d3 g7 Qe7 Rh3 Qd7 e7 Rh7 Qg4 d1R Nf3 d2 Qc4 Nh6 g8B Ra3 c6+ Ka8 c7 Qe6 Bd3 Rg1 Nd4 d1R Bf4 Rb3 Na3 Nd7 Rc1 Qf6 Be6 a1R Be3 Ng4 b7+ Ka7 b8N Nc5 b6+ Ka8 Nbc6 Qe5+ Bf4 Na4 Ndb5 Nc3 Nb4 Nb1 Bd7 Bg7 Rg8 Bf8 e8B Rc3 Rg5 Ba6 Bc8 Rf7 Bed7 Bh6 Rg7 Rf8 Re7 Rd2 Rf1 Rda2 Rh1 h4+ Kh3 Nh2 g4 Rac2 g5 Ng4 g6 Rd8 Bd2 f4 g7 f3 g8B f2 Bg5 Rg2 Rhg1 Rf8 Re1 f1Q Re3 Qc1 B3f5 Rgd2 Rf3 Nf2+ Kg2 Rdd3 Bd5+ Bb7 Be8 Bc6 Bed7 Qg7 Kh2 h3 Kg3 h2 Kh4 Qh8 Nd4 Qe5 b7+ Ka7 b8R h1R+ Bh3 Ba8 Rb6 Bb7 Ndb5+ Ka8 Rg6 Rh2 Be8 Rg2 Bhf5 Rg3 Bec6 Rh3+
r2q4/1b2bN2/1N2rn1R/QKN3BB/r2R4/k2b1r2/P1R1nbNB/B2nN3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 Kd6 Kc4 g5 f4 e5 h4 c5 d4 b3 h6 e4 f6 e3 f5 b2 h7 e2 f7 e1B f6 b6 h5 g4 h6 g3 Bf4+ Kd7 d6 Kc6 d5+ Kb7 d7 Ka6 d6 Ka5 Nd2 b1R Nb3+ Ka4 Qd2 g2 Bh2 Bh4 Be2 Bf2 Nf3 g1R Ne1 Ne7 Bh5 Ka3 Kb5 Ra4 Qa5 Rc1 Rb1 c4 Rb2 c3 Rc2 Nf5 Nc5 Be7 f8N Rg6 f7 Re6 Ng6 Ne3 f8N Nd1 Nf4 Bb7 Nfg2 Rg8 h8R Rg3 Rg8 Rf3 Rg4 Rb1+ Rb4 Rb2 h7 Rb3 Rd2 c2 h8B c1N Rc2 Ne2 Ba1 Rbc3 Rd4 Rc4 Qd2 Ra8 Qg5 Rca4 Qf5 Qc8 d8N Nd7 Nf7 Nf6 Nfd7 Qd8 Qg5 Nc1 Qd2 Ne2 Qa5 Ba6+ Kc6 b5 Nb6 b4 Bf4 b3 Bh2 Ree3 d7 Bb7+ Kb5 b2 Ned3 b1B Nde1 Qf8 d8B Qh8 Bdc7 Qc8 Bcf4 Re6 Bg5 Qd8 Rb2 Ng8 Bg6 B1e4 Bb8 Bbd5 Rh6 Bb7 Bh5 Bb1 Bh2 Nf6 Rbd2 Bh7 Rc2 Bd3+
1B3n2/2P2RB1/KbBb4/1rkr1nb1/n1b3q1/R7/r1BNrR1B/N1QR2N1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Kc4 e5 b4 Ke7 f4 Kd6 g4 a4 g6 a3 f6 a2 g7 e4 f7 h4 g5 d3 f5 d2 g6 h3 f6 h2 b6 e3 Kb5 e2 c4 e1B b7 Rh7 c5+ Kd5 c6 d6 c7 Rh4 Bd3 Bf2 Bc2 Nh6 g8R Bb6 g7 Nd7 b8N Rh5 Na6 Nf5 Nc5 Ra7 Qe1 d1N Nd2 Nb2 Ncb3 Na4 Ba3 Qe7 Qc1 Qe4 Bb2 Qg2 Be5 Qg4 Rh8 Be7 g8B Nf8 Rh7 Be6 Bf4 Ra8 Bg3 Re8 Ka6 Kc6 Rg7 d5 Bd6 d4 b5+ Kd5 Bh7 d3 Be5 Ng6 f8B Bd6 Rf7 Rg5 Bg7 Nf8 Nb1 Kc4 N1d2+ Kb4 Bg3 Bc4 Bf4 Re2 Bg3 Nd4 Be4 Nf5 Bc6 Rh5 Rb1 Rg5 Na1+ Kc5 Rb3 Rh5 Ra3 Rg5 Nf1 d2 Bf4 d1R Be5 Rd5 Nd2 Ba7 Bf4 Bb3 b6 Bc4+ Bb5 Rh5 b7 Bb6 b8B Rg5 Nh3 Rh5 Rd1 h1R Ng1 R1h3 Bh2 Rb3 Kb7 Rb2 Bc6 Rb5 Ka6 Rh3 Re7 Rg3 f7 Rgg2 Nab3+ Kb4 Rd7 a1B Re7 Bf6 Na1 Kc5 Rd7 Ng6 f8R Bg5 Rf6 Nf8 Rdf7 Nd4 Rf2 Nf5 Bf6 Rg3 Be5 Rgb3 Bf6 Rb2 Bg7 Ra2
b5N1/2B1n2k/B1N3rB/1n3Nn1/r1Nq4/nR2P3/QbbRB1R1/N3Kq1b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 a5 b4 f5 d4 Kf7 g6+ Kg7 b6 c5 b7 h5 b5 h4 g5 h3 b6 h2 d6 a4 d5 c4 d7 c3 d6 f3 Na3 f4 Qb3 c2 Qa2 Qf6 d8R Nh6 d7 Rg8 Nc4 a3 Rb1 Ra4 Rb3 Nc6 b8N Qd4 b7 Ne7 Nc6 Nf7 b8N Bb7 Nb4 Ba8 N8c6 Kh8 g7+ Kh7 Bd2 c1N Nc2 f2+ Kd1 f3 Na1 Qc5 Bf4 Qb6 e3 Ne2 Kd2 Nc3 Be2 f1B Ke1 Qa7 Bc7 Nb5 g6+ Kh6 Bf4+ Ng5 Bc7 Qd4 Bf4 Rh8 g8B Bg7 Be6 Be5 g7 Kh7 g8N Bh3 Bf7 Bf5 Be6 Bb1 Bh3 Bc2 Bhf1 Nf7 Bh6 Ng5 Nh3 Bg7 Rg1 h1B Nf4 Bf6 Ng6 Be5 Qb1 a2 Nh4 Bf6 Nf5 Bg7 Bd3 Be5 Bfe2 f2+ Kd2 f1Q Rg2 Bd6 Qb2 Ba3 Qb1 Qf3 Ke1 Bb2 Rc8 Qh3 d8B Qf3 Bc7 Qff4 Rd8 Qf3 Bf8 Qh3 Ngh6 Rg8 Rd5 Rg6 Ng8 Qf3 Bh6 Qf1+ Kd2 Qf2 Nb6 Qdh4 Rd6 Nd4 Ba6 Qff4 Nc4 Nb5 Rd8 Qhg4 Ke1 Qff3 Rd2 Qd4 Rh2 Be4 Nc2 a1N Qa2 Qg2 N2b4 Qf3 Rg2 Nc2+ Kd1 Nca3 Nc2 Bd3 Na1 Bc2+ Ke1 Qf1+
Qq2B1b1/qb6/Rn3BN1/2b1Q1RK/3NB3/2P1knB1/n1B4b/2Nnr1rB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 b4 Ke4 b6 d5+ e6 f5+ Kh5 a5 g4 a4 c3 a3 g6 f4 g5 f3 b7 f2 b5 d3 g7 d4 e7 a2 e8B d2 b6 d3 g6 Bc5 Na3 Nd7 b8Q Bb7 Nc2 Ne7 g8B Nc6 g7 Nb4 Qe1 d1B Bb3 d2 Nd4 Ke3 Bg2 f1N g8N Nh2 Be4 Nf3 Ne7 Rg8 Bbc2 h6 Qe5 Qb8 Ng6 Qa7 Bf7 Rae8 Bfd5 Bd6 Qh8 Bh2 Qg3 Re6 Qge5 Rg7 Qa8 Rg8 Bcd3 Bb3 Bc2 Rg7 Ba3 Ree7 Bc6 Bg8 Bcd5 d1N Bc6 Ba6 b7 Nb6 b8B Bb7 Bd6 Re6 Be7 Qb8 Bf6 Ree7 Nh3 Re8 Rg1 Ree7 Nhf4 Re8 Rc1 a1B Nd3 Bb2 Rg5 Na2 Bd6 Ba3 Ra1 Bc5 Bcd5 Nc1 Ra6 Na2 Qe7 Qa7 Bg3 Qb8 Qe5 Re6 Kg4 Ree7 Nc1 h5+ Kh3 h4 Kg4 h3 Kh5 Bg1 Bc6 h2 Bcd5 Nh4 Bc6 h1Q Bcd5 Qh3 Bc6 Qd7 Bh1+ Kd2 e4 Bh2 Qf4+ Ne3 e5 Rgf7 e6 Bc8 Bhd5 Qda7 Be5 Bb7 Bh1 Re8 Qf6 Nd1 e7 Rff8 Qd6 Rf1 Bf6 Rg1 Qe6 Nf3 Bd5 Rd8 Qf5 Rd6 e8B Re6 Bdc6 Re4 Qe5 Ree1 B6e4 Ke3
1B1B1n2/1R2rB2/bq1r2qb/4RN2/B5PQ/1N2q3/nnNnNqR1/3N1k1K w - - 0 1 legal: proof: e4 d5 h4 f5 exf5 g5 b4 gxh4 c4 a5 bxa5 Kd7 cxd5 Ke8 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 Kd4 a4 c5 a6 h5 f6 e5 a5 b5 a7 e4 f5 b4 a6 c4 f7 c3 f6 e3 d6 e2 d7 Kd3 Ra2 b3 Qe1 c2 Nc3 b2 Nd1 Bb4 f8N b1Q Rh2 Nh6 f7 Qc7 d8N Rh7 Ra5 Nf5 Nd7 Ng3 f8N Re7 Nb7 Ne4 Ne6 Qc6 Nd4 Qg6 Bb2 c1N Nd6 Na2 N6f5 Bc3 Nc2 Bg7 Be5 Bh6 Bd6 Bb7 Re5 h3+ Kf3 h4 Nc5+ Kc4 d4 Nd2+ Kf2 Nd7 d5 Rd8 a8B Qb6 a7 Ba6 Bc6 Nf8 Rg2 h2 a8R h1Q Ra7 Qh3 Bb8 Rd6 Rb7 Qc3 Ba4 h3 Rg3 h2 Kg2 h1N Nb3 Qce3 Qf2 Rc6 d6 Kd3 d7 Rd6 Qe1 Nf2 d8B Nc4 Kh2 Nb2 Rg2 Ne4 Kh1 Nd2 Qh4 Qf2 Rh2 Qfe3 Bg2 e1Q Bd5 Q1f2 Bf7 Qef3+ Rg2 Q3e3 Nh3 Ke2 Ng1+ Kf1 Ne2 Qa5 Bc6 Qac5 Ba4 Qb6
NBBB4/bRrn4/5bnr/r5N1/qPbR2QR/r1R2b2/k2Bq2K/N3B3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 g4 Kd6 f4 e5 Kf2 a5 Kg2 c5 g5 h5 f6 a4 g6 e4 b6 e3 b7 h3+ Kh2 a3 f7 a2 g7 e2 f5 e1Q f6 c4 Nd2 c3 Ngf3 h4 Ba6 c2 Ng5 Nc6 Rb1 a1B Nb3 Rh6 Qg4 Qde8 Bd2 Nge7 g8R c1R Rg7 Ne5 b8B+ Rc7 Rc1 Qa4 Rc3 Bd7 Bc8 Be6 Rh7 Bg7 f8B Ra5 f7 Bf6 Bg7 Qe3 f8N N7g6 Nd7 Bf7 Nb6 Nd7 Na8 Qe6 Kg1 h2+ Kg2 Qe7 Rb1 h1B+ Kh2 h3 Rh8 Rh7 Bf8 Rg7 Rh4 Bf3 Be1 Rg8 Bh6 Qe3 Nh7 Qe4 Bhd2 Re8 Ng5 Qe2+ Kg3 h2 Kh3 h1R+ Kg3 Ke7 d6+ Kd8 d5 Re3 Nd4 Be6 Nc2 Bd4 b3 Bb2 Na1 Ba7 b4 Ke8 Rbc1 Kf8 Rd1 Kg7 Rdc1 Kf6 R1c2 Ke5 Rc1 Ndf8 d7 Kd6 d8B Nd7 R1c2 Ke5 d6 Bc4 Rc1 Kd5 R1c2 Nc5 d7 Rd3 Ra3 Bf6 Rac3 Re3 Be7 Rd3 d8R+ Nd7 Rc1 Rh2 Rd1 Re3 Re8 Rd3 Bd8 Re3 Re7 Rh1 Rcc1 Ra3 Rc3 Rh2 Re6 Rh1 Rb6 Rh2 Rb7 Rh1 Rh8 Rh6 Rb6 Rh5 Rb7 Bd3 Bf4 Rh7 Rb3 Kc4 Rd2 Rg7 Rh4 Rh7 Rd1 Rh6 Rd2 Qe5 Kh2 Bf1 Rbd3 Qe8 Rd4+ Kc3 Be3 Bc4 R2d3+ Kb2 Rc3 Ka2 B3d2 Qe2+
2R1B1Rn/bN1Q1b2/3N1B1q/bnK2RPr/3NrNb1/2RB2nR/1n3k2/7q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g6 Kd7 Kf2 Kd6 g4 Ke5 b4 Ke4 d4 f5 g5 c5 g7 h5 b6 a5 d6 c4 d5 c3 e3 f3 b5 c2 b7 a4 d7 a3 b6 f4 d6 a2 Bd2 c1N Be1 h4 Ne2 h3 Na3 h2 Nc4 Ne7 g8R Ng6 Bc3 Na6 b8R Nc7 b7 Qf6 d8R Bg4 d7 Ra4 Rdc8 Rh5 Qd6 Qh8 Bf6 Qh6 Qe7+ Kd3 e4 Nh8 e5 Rb4 Qg7 Bd6 e6 Be5 Ra8 Nb5 Ra3+ Bc3 Rb1 a1B b8N Ke4 d8N Be5 e7 Bac3 Nd7 Bb8 e8B Ra4 Nb7 Ba5 Nf8 Rb4 Rg1 h1Q Rc3 Ra4 Ng6 Rb4 Ke1 f2+ Kd2 f3 Rg3 Nd3 Qd7 Nb2 Rh3 Ra4 Kc2 Rb4 Rd1 Ra4 Rd5 Rb4 Bg2 f1N Rf5 Ng3 Bf1 f2 Ngf4 Ra4 Ne6 Rb4 N2f4 Ra4 Be2 f1B Kb3 Bg2 Bd3+ Kf3 Ncd6 Kf2 R3c4 Bc6 Rc3 Re4 Nd4 Bd5+ Nc4 Bd8 Kb4 Bf7 Kc5 Ba5 Ncd6 Ba7+
5rBN/n2B1q2/k3N1n1/1bP2N2/B1rBnR1q/Q1bKn3/1R3N2/1N1b2Rb w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 h5 f4 e5 b4 d5 g4 Kd7 c4 Kc7 b6+ Kb7 b5 a5 f6 e4 f5 a4 c5 e3+ Kd3 h4 g6 h3 g5 a3 g7 a2 f7 e2 f6 e1Q g6 h2 Qb3 Be6 Bh3 Rh5 Bb2 Nc6 Qa3 Nge7 g8B Rh8 g7 Qd7 Bf5 Na7 Nh3 Rh7 Nf2 Ng6 Rf1 h1B Bh3 Be7 f8N Rh4 f7 Bf6 Bh7 Bg4 Ne6 Rf8 g8B Bd1 Rg1 Ba4 Rg4 Qb4 Rf4 Bh8 Ng7 Qe7 Bd7 Qbe1 Ne6 Qf1+ Kd2 d3 Bd4 Qh3 Kc3 Rg4 Kd2 Qhh4 Kc3 d2 Kd3 Re8 f8N d1N Qb4 Qf7 Qa3 Ne7 Be4 Nc3 Ng6 Rf8 Bf3 Bg7 Bd1 Ne4 Nh8 Ng6 Bb3 Ka8 b7+ Kb8 Bb2 Bc3 Bd1 d4 Bc2 Nc6 Bb3 Ka7 b8N Kb7 b6 Na7 Nc6 Ka6 b7 Bf3 b8R Bh1 Kc4 d3 Nd4 d2 Kd3 d1B Nf5 Bhf3 Nd2 Bh1 Rc1 a1N Nb1 Nc2 Rb5 Be1 Bd4 Ne3 Bc2 Bc3 Rb2 Bdf3 Rg1 Bd1 Qb4 Bc6 Ba4 Bb5+ Qc4 Rg2 Rb3 Bb2 Ng4 Rc2 Nf2 Ka5 Rb4 Bc6 Qc3 Ka6 Qb3 Rc4 Qa3 Bc3 Rb2 Bb5
1RBq4/4q3/nR3nPn/3qbNBQ/3rqQ1Q/3NQ1KN/k3rQ1Q/4n2b w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 d4 a5 g5 e5 f6 e4 f7 h3 b6 a4 b5 h2 b7 c4 b6 h4 f5 h3 g6 c3 f6 e3+ Kg3 a3 Ba6 c2 Nc3 a2 Ne4+ Kd7 d6 Ke6 d7 Kd5 Nf2 e2 Nd3 e1N Rb1 a1Q Bg5 c1Q Qh5 Qe7 d8Q+ Bd7 Qe8 Bg7 f8N Bc6 f7 Qd2 Ne6 Qa4 f8Q Nh6 Qf2 Ra7 Rb5+ Kc4 d5 Qaa5 d6 Be5+ Ndf4 Qd1 d7 Qd5 d8Q Rf8 Ng7 Rf5 Rc5+ Kb3 Rb5+ Ka3 Rb1 Rf6 Rb5 Re6 Nf5 Qad2 Rb3+ Ka2 Rb5 Qe4 Qdd4 Rd6 Qd8 Ra8 Qde3 Rd4 Rb4 Nd7 b8Q Nc5 Bc8 Na6 b7 Qd5 Nf3 Ra7 Rg1 h1Q Rb6 h2 Qbc7 Qe4 b8Q Bd5 Qcd6 Rc7 Rf1 Rc2 Ng1 Qa5 Nh3 Re2 Qf6 Ba8 Qbd6 Qed5 Qdh8 Qhe4 Rb8 Qad8 Qf7 Nf3 Rfb1 Ne1 R1b6 h1N+ Kh4 Ng4 Nd3 Nf6+ Qff4 Nf2 Kg3 Bc6 Qh4 N2g4 Q8h5 Bb7 Qc7 Nh6 Qf8 Rb2 Qc2 Bc6 Qh2 Re2 Qf7 Ba8 Qf8 Qee6 Qc5 Qee7 Qef2 Bb7 Qc1 Bc6 Qce3 Qb3 Ng7 Qf5 Bd7 Bh1 Bc8 Qe4 Nf5 Qbd5
2B1nNbn/6q1/nk1P1N1Q/2n2N2/r4Nrb/BN1qbN2/2R1RBK1/2b3Q1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 h5 g4 e5 d4 c5 d6 h3 d5 h2 b6 e4 f6 h4 f7 h3 f5 c4 b7 a4 g5 c3 f6 a3 g6 a2 b5 c2 b6 Rh5 g7 Nh6 g8N Na6 b8B Rh4 b7 Rg4 Ba3 c1B Ne7 e3+ Kf3 e2 Ba7 e1B Nd2 Bh4 Nb3 Bg3 Bf2 Bg7 f8Q Nf7 Bc4 Nh8 f7 Bd4 Qh6 Bde3 Nf5 Qe7 Rb1 a1N b8N+ Kd8 f8N Be6 d7 Kc7 d8N Kb6 d6 Qg7 Qe1 Bg8 Nde6 Ra7 Nf4 Ra8 Na5+ Nb3 Rb2 Ra7 Rc2 Nbc5 Be6 Ra8 Nge2 Ra7 Rg1 h1N Nb3 h2 Rg2 Ra8 Qg1 Ra7 Be1 Nf2 Bc8 h1Q Ned4 Nfe4 Bf2 Nf6 Re2 Qh5 Rh2 Ne8 Kg2 Qhf7 Nf3 Qc4 Rc2 Qd3 Nbd7+ Kc6 Nf6 Kb6 Be6 Nb8 Bc8 Ra4 Rh5 Nba6 Rg5 Qf7 Rg7 Qg6 Re7 Qg7 Re5 Bed2 Re1 Be3 Ree2 Bh4+
B2B3b/R3bP1k/r2N4/RQ1K4/1Qr1qq1n/b1qQ1bB1/n1BB4/N1B4q w - - 0 1 illegal: No possible last move, all moves rejected
BB1K1RqB/1N1Pn2B/5B2/6rk/nb1nQ2B/Qq1n3N/2b2Nr1/1r2R2r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Ke4 h5 f4 a5 g4 c5 b4 c4 d4 c3 g5 c2 f6 Kg6 b6 a4 b5 h3 f5+ Kf7 g6+ Ke8 f7+ Ke7 b7 Kf6 d6 h2 Kd5 e4 d7 e3 b6 Kg5 Ke6 a3 g7 h4 f6 h3 d5 a2 d6 Ne7 g8B Ra7 Bb2 c1N Qa4 e2 Nc3 e1N Qe4 Ra6 Nd1 Ra8 Nf2 Ra4 Bh7 Nbc6 b8B Ra5 b7 Ned3 Bg2 Bh6 f8Q Kh5 f7 Ne2 Bf6 Rg8 Re1 a1R Ba7 Rc5 b8B Rcg5 Bad4 Rb1 Bh8 Bg7 Bf6 Nc3 Rf1 Bb7 Re1 Qb6 d8N Qb3+ Kd7 Nd4 Kc7 Ba6 d7 Na4 Nb7 Bb5 Kd8 Bc4 Qe8 Bf8 Qe3 R8g6 Qc1 Be6 Qa3 Bf5 Bd5 Rg2 Be4 R6g5 Bd5 Ng6 Qe4 Bb4 f8B Ne7 Bh6 Rg7 Bh4 R7g5 B6g7 Bg6 Bf6 Bf5 Ne2 Bg6 Rhf1 h1Q Bc6 h2 Ng1 Bf5 Ngh3 Qg1 Nd6 h1R Ba8 Bg4 Nb7 Bd1 Re3 Bc2 Rfe1 Ra5 Rg3 Rf5 Rg8 Rfg5 Rf8 Qh2 Qd5 Qg3 Qe4 Qg4 Qa2 Qge6 Qa3 Qg8
B1Q1q2k/N1BR4/1B1Bn1rn/1KRNb3/BqQ3Bb/5PNp/2q3n1/2r4b w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 b4 Kg7 d4 a5 g4 h5 g6 c5 g5 e5 d6 a4 b6 c4 b5 e3 b7 h4 b6 h3 d7 c3 Kd3 a3 Kc4 e2 d5 e1N d6 e4 f3 a2 Qc2 e3 Ne2 Nd3 Kb5 Na6 b8Q Ne7 b7 Qe8 Ba3 Rh5 Ng3 Kh8 g7+ Kh7 g8B+ Kh8 Be6 e2 Bg4 Nac5 g6 e1Q g7+ Kh7 g8B+ Kh8 Bd5 Nf4 Qd3 c2 Qc4 c1Q Nc3 Qc2 Rd1 a1B Bd3 Qg6 d8N Nf5 d7 Ng2 Nc6 Be7 d8B Bh4 Na7 Ne6 Bb6 Rg5 Bd6 Nh6 Qbc7 Qg8 b8B Rg6 Rd2 Bb7 Qc8 Qe8+ Bc6 Qe4 Nd5 Be5 B8c7 Rb8 Rc1 Ba6+ Ka5 Qd4 Ba4 Qf4 Be4 Bb5 Qc5 Bf1 Qc4 Rb7 Ne7 Rb8 Ba8 Rb7 Nd5 Rb8 Bf2 Rb1 Bfb6 Ra1 Rb1 Qd4 Rb5 Rc1 Rc5 Qdb2 Rd4 Qbb1 Rf4 Qbb3 Rf7 Qb4+ Ka6 Ne1 Rd7 Bg2 Nf6 Bh1 Nd5 Qbb3 Ka5 Ng2 Ka6 Qbc3 Kb5 Qb4+
2K2R2/1nqr1R1b/1B6/n6B/N2n2bq/PN2bNp1/3B1QrN/qRBB3k w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Ke3 g5 Kd4 b5 Kc5 f5 d4 f4 h4 b3 e4 g4 d6+ Ke6 d5+ Kf7 a3 b4 e6+ Kf6 h6 Ke5 h7 c6 e7 g3 e8B b2 h5 b3 h6 f3 Qc2 f2 Bh5 Bg4 Nf3+ Kf6 Be2 f1Q Bd1 Qh3 Nbd2 b1Q Rf1 b2 Nb3 Qh4 Qf2 Ra7 e5+ Kf5 e6 Ke4 e7 Nf6 d7 Qc7 d8N Ne8 Ne6 Nd6 e8N Qa2 Rb1 Qa1 Bd2 Be7 Bc1 Bg5 Bd2 Rf8 h8B Be3+ Bd4 Rf6 h7 Rh6 h8R Nb7+ Kc4 c5 Kb5 c4 d6 c3 d7 c2 d8B c1N Bb6 Rh7 Rf8 Ne2 Bg5 Nc6 Bh6 Nca5 Nec5+ Kd5 Na4 Ke4 Bc1 Rd7 Rf7 Ra8 Bd2 Rc8 Ka6 Nd4 Rf8 Qd6 Ka7 Rc2 Bc1 Qde7 Kb8 Rd2 Kc8 Qd6 Qe1 Rg2 Qf2 Qde7 Nc7 Qh7 Ne6 Qg7 Bd2 Qf7 Neg5+ Kf4 Rc1 b1B Rc7 Bh7 Nh2+ Ke5 Ngf3+ Ke4 Rc1 Qfe7 Rb1 Qc5+ Kb8 Qc7+ Ka7 Kd3 Bc1 Qe5 Qa2 Qc7 Ng5 Bd2 R1f7 Ke3 Ngf3+ Kf2 Bf4 Qc5 Kb8 Qd6+ Kc8 Qe5 Ng5 Kg1 Ngf3+ Kh1 Bg5 Bf4 Qf2 Qd6 Be7 Qe5 Bb4 Be3 Bbd2 Qc7+
2B1N1n1/3NBr1N/2Q3r1/3q3n/1bR1Bbp1/1B2k1Pb/NR4r1/q2q1RNK w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 exf4 c4 d5 cxd5 g4 Nh3 Ba6 Ng1 Qg5 hxg5 Bc8 Rh2 Ke7 Kf2 Kd6 b4 Ke5 d4+ Ke4 d6 c5 g6 h5 d7 a5 d8R f5 g7 f3 b6 h4 d5 h3 b7 f4 g3 c4 b5 c3 d6 a4 d7 c2 b6 a3 Qd6 a2 Nc3+ Kf5 e4+ Kg5 e5 Ra3 e6 Rh4 e7 Nh6 e8B Ra6 g8B Kf5 Ba3 c1B Bb3 Ng8 Bg2 Rh6 Rb1 a1Q Na2 Ke4 Bef7 Rh7 Bfe6 Rf7 Re8 Be7 d8N Nd7 b8N Ndf6 b7 Nh5 Kf1 Rb6 Na6 Be3 b8N Bb7 Qc5 Bc1 Bc8 Rg6 Ne6 Kd3 Ng5 f2 N1f3 Bc6 Rh1 h2 Nd7 Bd5 Rg1 h1Q Nh7 Bd2 Qd6 Bg5 Bc5 Bb4 Re4 Bh6 Qf6 Ba8 Nc7 Bb7 Rd4+ Ke3 Nd2 Ba8 Bc6 Qe4 Nf3 Qe6 Kg2 f1Q+ Kh2 Qd1 Rb2 Qe5 Be7 Bb7 Ne1 f3 Kh1 f2 Nf3 f1R Rc4 Bf4 Ne8 Rf2 Rf1 Qed6 Ng1 Q6d2 Bg2 Be4 Qc6 Qd5 Bb7 Rc2 Bc8 Bd3 Rf2 Bf1 Be4 Bh3 Rf1 Rg2
1Br1q1N1/N1N1Brkq/q6R/3Br1pR/n3bQB1/n3N2B/1n1KP3/5Rb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 d5 c4 a5 h4 g5 c5 f5 h6 Kf7 h7 d3 e6+ Kf6 e7 f4 e8B a4 c6 a3 h5 d4 h6 f3 c7 f2+ Kd2 a2 b6 Ne7 b7 Rg8 h8N Nd5 b5 Ne7 b6 Rg7 h7 Nf5 Bf7 Bb4+ Nc3 Qe8 Bh3 f1Q Ng6 Na6 h8R Bc5 b8B Ne3 b7 Qf5 Nb5 Nc2 Bd5 Na3 Nf3 Rf7 Nfh4 Kg7 Ne7 Qh7 Ng8 Bf5 c8B Be4 Qa4 Ba7 Bce6 Nc5 Beg4 Bb6 Qb4 Na4 Na7 Bc5 Rb1 a1Q Ng2 Qa2+ Bb2 Qc4 Rbg1 Qa6 Ne3 Bb6 Rf1 Bc5 Bd6 Rc8 b8N Bb6 Be7 Bc5 Kd1 d2 Qc4 Bd6 Bc3 Bh2 Ba5 Bg1 Bc7 Qf5 Rh6 Qh7 Qd3 Nb5 Kc2 d1N Kd2 Na3 Qc4 d3 Bf4 Ndb2 Bh2 Qe6 Na6 Qeg6 Nc7 Qa6 Bg3 Bg2 Bc6 Qa5+ Kc1 Nc5 Na8 Rf2 Bb8 Qa6 Nc7 Rf7 Qf4 Be4 Bg2 Nca4 R1h5 Nc2 B2h3 d2+ Kb1 d1R+ Ka2 Ne1 Kb3 Rd5 Ba8 Rdf5 Bd5 Re5 Kb4 Nc2+ Kb3 Nb6 Kc3 N6a4+ Kd2 Na3
b1n1rQn1/Qq3R1B/1q4N1/rk1rPB2/1B3B1b/2BN1pKN/7R/2Bn3q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 f5 d4 h5 b4 c5 e4 a5 d6 c4 d5 h4 g6 f3 g7 a4 b6 h3 b7 c3 g5 c2 g6 f4 b5 h2 b6 a3 Nd2 a2 Nh3 Nf6 g8N Ra7 g7 Rh6 Nb3 Rh8 Ne7 Ng8 Ng6 Qe7 Qd4 Qf6 Nc5+ Ke8 Bd3 Nd7 b8Q Be7 b7 Nb6 d7+ Kd8 e5 Ra5 Bf5 Qd6 Rb1 a1Q Nd3 Qb2 Qa7 Kc7 Qb4 Qf6 d6+ Kc6 b8B Bb7 d8B Nc8 d7 Ba8 Bd6 Qe6 Qa3 Qb7 Bb4 Kb5 Rf1 h1Q Rb2 Qb3 Bb6 Qe6 Bbe3 Qeb6 d8B Bg5 Ra2 Bf6 Bc3 Bg5 Qf8 Bf6 B1d2 c1R Be7 Rd1 Beb4 Be7 Bc1 Bd8 Nc5 Rd5 Nd3 Be7 Ke1 Bd8 Rh2 f2+ Ke2 Bh4 Bed2 Qg1 Kf3 Qh1+ Kg4 Nge7 g8B f3 Bh7 Rg8 Rd1 f1N Bf4 Rh8 Rdd2 Ng8 Rd1 Bf6 Rdd2 Ne3+ Kg3 Nd1 Ne1 Rc5 Rd7 Rd5 Rf7 Bh4+ Kg4 Nge7 Nd3 Rg8 Qg7 Re8 Qf8 Bg5 Kg3 Ng8 Bg4 Be7 Bf5 Bh4+
B1b1nB2/2N3B1/Rq3BQ1/B1qqp3/3RrbP1/2NQ1bQ1/2r1n3/1nk1K2B w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 b4 Kf7 f4 Kg6 d4 Kf5 b6 a5 g6 c5 d6 h5 d7 a4 b7 e3 g4+ Ke4 b5 e2 f5 a3 f6 c4 g7 h4 f7 c3 b6 h3 d5 c2 d6 h2 Bb2 Ke3 Bg2 c1Q Nc3 a2 Nf3 Nc6 b8Q Nf6 g8B Ra4 b7 Ne8 Nd4 Bh6 f8B Qb6 d8B Bf4 Ne6 Re4 d7 Nd4 Nc7 e6 Rf1 h1B Bf6 Rh2 d8B Qc2 Bf7 Qcb3 Qa8 Qd5 b8Q Qbc5 Qdb3 Kd3 Q3b5+ Kc2 Qaa6 Qb6 Rd1 a1Q Bg8 Qa3 Qd3+ Kb3 Bf3 Qac5 B6g7 Rg2 Bdf6 Rf2 Ba3 Rg2 Bb4 Kb2 Ba5 Rf2 Bf7 Bg2 Rh1 e5 Rh6 Bh1 Rd2+ Kc1 Be6 Qbc6 Qb3 Q6b6 Bd7 Rg2 Bc6 Rh2 Ba8 Bg2 Kf2 e1N Rg6 Nec2 Rh6 Ne3 Ke1 Ne2 Rg6 Nc4 Rh6 Bh3 Bh1 Bg2 Qg3 Na3 Rd4 Bf3 Qd3 Qd8 Qf7 Nb1 Qg6 Qdd5 B6e7 Qa7 Qh7 Rf2 Ra6 Qab6 Bef6 Ng1+ Qe3+ Rd2 Qg6 Ne2 Qd3 Rc2
3rnN1B/Rb1bnn2/8/3PrR2/5BQ1/bp6/BqR1qq1R/k2KNBRN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 d4 Kf6 h4 e5 f4 b5 d6 c5 h6 g5 d7 c4 a5 e4 h7 g4 a6 b3 d5 g3 a7 g2 h5 b2 h6 b4 Rh2 c3 Nd2 b1B Ngf3 Qe8 d8R g1N Rd7 e3 Qa4 Na6 Kd1 Qe4 Ne1 Nh3 Rg7 Bc5 Rg1 Ne7 Ra3 Re8 h8R Qg2 h7 Ng5 Ra1 Rb8 a8B Nc7 Bc6 Bb7 Bcb5 Rbd8 Bbc4 Nf7 Ba2 b3 Qc4 Ba3 Ne4+ Kg7 Ng3 Kf6 Bd2 Qf2 Nh1 Bd3 Qa4 Bb5 Rhg8 Bd7 R8g2 Nc6 Qc4 Re5 Bc1 Ne8 h8B+ Ke7 f6+ Kd6 f5 Ne7 Qh4 Kc5 Qg5 Kb4 Qg8 Ng5 f7 Ka4 f8R Nf7 f6 Kb4 Rb1 Ka4 Rg7 Kb4 Rb2 Ka4 Bd2 e2+ Kc1 c2 Bf4 Kb4 Rgh7 Kc3 Qg4 Rf5 Rg8 Re5 Rg5 Kb4 Kd2 Ka4 Rf5 c1Q+ Kd3 Qb1+ Rc2 Qb2 Kd2 Nh6 f7 Kb4 f8N Nf7 Nf3 e1Q+ Kd3 Qg2 Rg7 Qef2 Ne1 Ka4 Be2 Qe4+ Kd2 Qef3 Kd1 Kb4 Rd2 Kc3 Rc2+ Kd4 Rg6 Qbc3 Rd2+ Qfd3 Bf1 Qa1+ Bb1 Kc3 Ra6 Qe4 Ra7 Qee3 Rd4 Kb2 Rc4 Qa2 Rc5 Ka1 Rc2 Qb2 Ba2 Qee2+
Qb1nb2k/BR4N1/N2n2Br/1Bp1rN2/K4br1/4P2q/R2R3N/2NBq2q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 a5 b4 f5 d4 Kf7 Kd2 Kg7 Kc2 h5 Kb3 h4 g6 h3 g5 f3 d6 c6 d7 f2 d5 f4 b6 f3 b5 h2 b7 Ra7 d6 Rh3 b6 Rh6 Nc3 Rh3 Qd5 Qf6 d8R Na6 b8N Bd7 b7 Qe5 Ra2 Be8 d7 Qg3 Be3 Nb4 Na6 Bd6 b8N Bf8 Ka4 Rc7 Ba7 c5 e3 Nh6 Bb5 f1Q Nce2 f2 Nf3 Qe1 Nc1 f1R Nc6 Nf5 Ne7 Rg1 Qa8 Nd6 Nf5+ Kh8 Rb8 Rc8 d8N Bh6 Ne6 Nc6 Neg7 Nd8 Rb7 Rh5 Rd2 Rc6 Ra2 Rg2 Rg1 h1Q Nh2 Qh3 Rf1 Rc7 Rff2 Re7 Rfd2 Re5 Ne6 Kg8 g7 Kh7 g8B+ Kh8 g6 Bf4 Bf7 Rg4 Neg7 Rh6 Ka3 a4 Bb3 Qh5 Bd1 Qh3 Nh5 Kg8 g7 Kh7 g8B+ Kh8 Kb2 a3+ Kb3 Q3f3 Ka4 Qh3 Rab2 a2 Bh7 a1B Ra2 Bc3 Nhg7 Ba5 Bg6 Bc7 Rac2 Bb8 Rb2 Nc6 Ra2 Nd8
N4RNb/1B1NB1kb/3nK1q1/1PRr3R/1n4pn/6BB/Nr2Q1r1/4b1Bq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b6 a5 Kf2 g5 Kf3 f5 h4 Kf7 d4 c5 e4 a4 b4 c4 h6 c3 h7 a3 e5 a2 b5 c2 b7 Qe8 h5 Bg7 e6+ Kf6 e7 Bh6 d6 Be6 d7 Ra5 d8B Ra4 d5 Rb4 d6 Bf8 d7 Bc4 h6 Rb2 Qe2 Kf7 Be3 c1N Nc3 Nb3 Rc1 Nc6 b8B Nf6 Rh4 Rg8 h8R Bd3 h7 Bc2 Bh3 Ne4 Rh5 Bg7 Bd6 Nb4 B8c7 Kf6 d8N Qf7 e8B Nd4+ Kg2 g4 Bc6 Nf3 Ne6 Rd8 Rf8 Nh4+ Kh2 f3 h8N f2 Ng6 f1R Ne7 f4 Bb7 f3 Ng8+ Kg6 Be7 f2 Nf3 Rg1 Be5 f1Q Nc7 Rd7 Na8 Rd5 Bc7 Bh8 Ne5+ Kg7 Nd7 Rg3 B3c5 Q1f3 Bg1 Q7f6 Be5 Nd6 Bf4 Bh7 Be5 a1B Na2 Rb1 Rc5 Bc3 Bf4 Qe4 Be5 Be1 Bf4 Rf3 Be5 Rf2+ Kg3 Qh1 Bf4 Bf5 Be5 Rg2+ Kf4 Ne8 Bc7 Rb2 Bb8 Qc6 Kg5 Qe6 Bg3 Bh7+ Kf4 Rdd2 Kg5 Qg6+ Kf4 Nd6 Ke5 Qb1 Ke6 Rd5 Rc4 Qc2 Rc5 Qg6+
b1N1qBR1/3r2R1/2NB2N1/1pR1q1k1/4Q3/NNb1r3/2brB1P1/1KnnB1q1 w - - 0 1 illegal: No possible last move, all moves rejected
q1Rbq2N/NbNn1rrn/1Q2b1Rn/p2q1N2/3B4/4P3/RK5R/2BkN2B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Kd7 Kd2 Kd6 Kc2 f5 b4 c5 h4 g5 e3 a5 h6 f3 h5 c4 h7 f4 h6 c3 b6 f2 b5 f3 b7 g4 b6 g3 Bg2 f1B Ne2 f2 Na3 Bd7 Ra2 Qf6 Rh2 Ra7 Bh1 g2 Ng3 g1N Qe2 Qf3 Qa6 Be6 Nf5+ Kd7 d6 Kc6 d5+ Kc5 d7 Kb4 d8B Be7 d6 Nd7 b8R Qd5 b7 Nf3 Rc8 Bg2 b8N f1Q Qb6+ Qfb5 Nc6+ Ka4 Bc7 Ng5 Bd8 Rb7 Na7 Qa6 Kb1 c2+ Kb2 Be4 Bc7 Bd8 Bb8 Rc7 Rg2 Qab7 Rg4 Qa8 Rg2 Nf7 Rg6 Rb7 Bc7 Ngf6 Bb8 Rf8 h8N Rg8 h7 Nh6 Bc7 Rg7 Bb8 Nc5 d7 Bg2 Be5 Bf3 Nf7 Be4 h8N Nh7 N3b5+ Kb4 Bc3+ Kc4 Ng5 Kd3 Nc7 Ke2 Bd4 Kd1 Ka3 Bg2 Nf3 Rf7 Bcb2 c1Q Ne1 Qb1 Bc1 Qbe4 Kb2 Qee5 Ng3 Qh5 Nf5 Rg7 Rg5 Qe8 Rg6 Bh4 d8R Nd7 Rb8 Bf6 Rdc8 Bd8 Ka1 Ndf6 Qb4 Qf8 Na6 Rbf7 Nc7 Qf3 Qd6 Qg8 Rbb2 Qe8 Qb6 Nd7 Rf2 Qfc6 Kb2 Qd6 Re2 Bb7 Rh2 Qd5
N5Nk/1R1n1rNn/2N1BP2/rBpq2B1/1K2q1r1/6bQ/R2B4/bR3bBn w - - 0 1 illegal: No possible last move
qB1B1k2/3rN1N1/q3PK1B/1b2qpnb/4BR2/nQB1N2Q/B2b1n1R/6r1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 a5 b4 c5 e4 h5 g4 c4 d4 a4 g6 c3 g5 a3 g7 a2 d6 c2 b6 h4 b7 h3 g6 h2 e5 Ne7 g8N Qd7 d5 Rh6 b5 Nec6 g7 Ra7 b6 Qe6 d7+ Kf7 d8Q Ba3 d6 Bd7 Bd3 Qc4 Ne2 Bc8 d7 Qa6 Qh4 Nb4 d8B Rg6 Nd4 N8c6 b8B Bd7 b7 Rg1 Qh3 Be8 Be4 Bb2 Bd6 Bc3 b8B Bd2 Ne7 Rd7 g8B+ Kf8 Na3 Qa8 Rb1 a1Q Nc4 Q1a6 Ne3 Bg6 Bb2 c1Q Bc3 Qb2 Qb3 Nc2 Rf1 Na3 Bf7 Na7 Bdb4 Nc8 Bfd5 Nd6 Ne6+ Kf7 Ng7+ Kf8 e6 Nf7 B4d6 Qa1 Bde5 Qb2 Bf6 Qa1 Bg5 Bh5+ Kf2 f3 Bh6 Rg6 Bc4 Ng5 Kg3 f2 Kf4 Qe1 Ke5 Qe2 Rhg1 h1N Rg2 Qe1 Rh2 Qa1 Rg1 f1B Rg4 Nf2 Bcd5 Bb5 Rf4 Nh7 Bc4 Rg1 Bcd5 Ng5 Kf6 Nc4 Qb1 Na3 Ba2 Q6b7 Qb3 Qba6 Bd4 Qc3 Bde5 Qc5 Bc3 Qe5+
rQB3kr/3nPbqR/Rp2n3/3RbK1q/1R1r1QRR/1N2B3/B6b/2N4q w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 g5 Ke3 f5 d4 Kf7 a4 c5 h4 f4+ Ke4 g4 a5 c4 d6 f3 h6 b6 d7 b3 a6 f2 e6+ Kf6 d5 c3 e7 Kf7 e8R g3 h5 g2 d6 c2 a7 b2 h7 Qf6 d8Q Bg4 d7 Be7 h6 Qg7 Rh4 Be6 Nd2 b1R Ra6 Qg5 Rg4 Qb5 Nb3 Ra1 Be3 c1Q Qd6 Qd1 Qf4+ Bf6 Qdc7 Qh5 d8R+ Ne7 Rd5 Nc6 Qb8 Rg8 h8R Rb1 h7 Qh6 Rc8 Ne5 Rc4 N7g6 Rca4 Kg7 Rb4 Bf7 Kf5 Ra1 Bc5 Qd3+ e4 Qdh3 Be3 Rd1 Bc4 f1Q Ne2 g1B Nec1 Nd7 e5 Rd4 e6 Be5 e7 Qhg2 Na1 Rc8 Ba2 Bh2 Nab3 Qfe2 Rf8 Qg1 h8R Qh1 Re8 Qh7 Rd8 Qg8 Rhh4 Qh7 Rf8 Qb2 Rh8 Qh5+ Qg5 Qa1 Rh6 Kg8 Rh7 Qh6 Qf6 Qg7 Qg5 Ngf8 Qf4 Ne6 Qc7 Rab8 a8B Qc3 Qa7 Qc5 Bb7 Ra8 Qb8 Re8 Bc8 Qb5 Rg6 Qe2 Rg5 Qh5 Rh6 Rd8 Rg6 Kh7 Rf6 Rh8 Rh6+ Kg8 Rh7 Qh6 Rgg4 Qh5+
1b5R/RRNp3N/1R1n1qbK/P1N1Q1Nb/1B3Br1/3Brn2/5R2/nq2r2k w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 a4 b3 h4 g6 c4 b2 h6 b4 c6 b3 h5 e6 c5 Qc7+ Qd6 Ba6 h7 Bd3 h6 Bc4 Nd2 b1Q Qe5+ Ke7 Kg5 b2 f4 Qb6 c7 Nc6 c8R Nd4 c6 Nf6 c7 Nb3 Bd3 Rg8 h8B Ne8 h7 Nd6 f6+ Kf7 Ra3 Na1 f5 Bd5 a5 Bf3 Ra2 Bh5 Ne4 Be7 Kh6 g5 Re8 g4 c8R g3 Rb8 g2 Bf4 Rg4 Nh3 g1N Rb7 Nf3 Nc5 Rb8 Rg8 Re8 Rh2 Bd8 Rf2 Bc7 Bg7 Qc6 h8R Bb8 Bf8 Re7 Ra4 Qa6 Rab4 Re8 Qe3 e5 R4b6 e4 Qd4 e3 Qe5 e2 Ra7 Re7 Ng5+ Ke8 Rbb7 e1R f7+ Kd8 f6 Re8 Qd5 R8e3 Qe5 Kc8 Rg6 Qb6 Bg7+ Qd8 f8N Qe7 f7 Qf6 Nh3 Kd8 Nfe6+ Ke7 f8N Kf7 Nh7 Ke7 Nc7+ Kf7 Qd4 Ke7 Nd5+ Kf7 Ne4 Ke6 Nc7+ Kf5 Bf8 Rg2 Bg5 Kg4 Nc5+ Kg3 Qd5 Kh2 Bf4+ Kh1 N3g5 Rgg1 Qe5 Rg4 Na4 Ne4 Bb4 Nd6 Nc5 Qd1 Ba6 b1B Be2 Be4 Bc4 Qb1 Bd3 Qd8 Rf6 Beg6 Re6 Nc8 Rc6 Qf6 Rcb6 Nd6
R1B1N3/q1PB2nN/Q1bq1q2/B4b2/k7/p2nb1n1/Q2BK1BR/BQ4rr w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 b4 h5 f4 e5 g4 d5 g6 Kd7 c5 d3 g5 d4 c6+ Kd6 b6 d2+ Ke2 a4 c7 Kc6 b5+ Kc5 f6 Kb4 f7 e4 b7 h4 g7 h3 b6 h2 f5 e3 f6 Ra6 g6 Nc6 b8Q Ne5 b7 Ra5 Qc2 d1N Nd2 Nf3 Qa7 Rhh5 b8Q+ Rab5 Qa2 Nh6 g8B Ne5 g7 Nf2 Qa6 Bf5 Bg2 Ne4 Nc4 Nd3 Nh3 Bc5 f8B Rh4 f7 Qf6 Nd6 Ng3+ Kd1 Bb6 Ng5 e2+ Kd2 Ba7 Ne8+ Bc5 Nh7 e1Q+ Kc2 Qee7 Kd1 Qed6 Be7 Qb6 f8B Qa7 Be6 Rh5 g8B a3 Bg7 Rg5 Bc8 Rb6 Rg1 h1B Bge6 Rb7 Bed7 Rg4 Bh3 Bc6 Bg2 Rh4 Be3 Rh1 Rc1 Rb5 Rc2 Rb7 Bd6 Rb5 Be5 Bb6 Qbb7 Ra5 Re2 Ka4 Bd2 Bc5 Qbb1 Bb6 Qb7 Rc5 Ba5 Rc1+ Kd2 Re1 Qa6 Bc5 Rf1 Bb6 Rff2 Reg1 Bf4 Nc5 Nd6 d3 Bb7 Qg6 Re8 Nf7 Ra8 Nd8 Bd5 Nde6 Ba1 Ng7 Ne8 Qf6 Ke3 d2 Rh2 d1Q Bg2 Qd5 Bbc8 Nd3+ Kd2 Qdd6 Be3 Nf1+ Ke2 Bd4 Bc1 Be3 Bcd2 Ng3#
1Rqb1b1Q/5n2/1RrR1Bk1/2BB1b2/2RR1B2/1r1P4/2Nrp2N/n2r1NKr w - - 0 1 illegal: No possible last move, all moves rejected
2Kn3N/1R1Q1nBq/r7/N2n1r1R/2B5/N1Rp1nP1/N1nrR1bb/R4B1k w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 c4 e5 b4 h5 f4 a5 g3 h4 g6+ Kf6 b6 h3 b7 a4 g7 a3 c5 h2 b5 a2 c6 Bd7 b6 Nh6 g8B Ra6 c7 Nc6 b8R Bc5 c8R Qe7 b7 Qh7 Na3 Nf7 Ne2 Ncd8 Nc3 Bc6 Bb2 Ba7 Rc7 Bc5 Rbc8 Bb6 b8N e4+ Kd2 e3+ Kd3 Bb7 Nc6 e2 Na5 Ba8 Rb7 e1N+ Kd2 Nf3+ Kd3 Ba7 Rcc7 Bc5 Re7 Bb6 Re2 Ba7 Qa4 Bb6 Qd7 Ba7 Rc1 a1N Na2 Nc2 Rg1 h1R Ba1 Ne3 Rc3 Rh2 Rh1 Rf2 Rh5 Nc2 Re4 Kg7 f6+ Kg6 Re2 Bb6 Rh3 Rg2 f5+ Kg5 Rh5+ Kg4 Bb2 Nd6 Be6 Rf8 f7 Bc5 Rg5+ Kh3 Rh5+ Nh4 Ba1 Kh2 Bb2 Kh1 Ba1 Rh8 f8N N6f7 Ng6 Rf8 f6 Rf2 Bb2 Rf5 Nh8 Rg8 Kd2 d3 Ba1 d4 Bc4 Rg4 Bb2 Rgf4 Ba1 Rf2 Bb2 Ne5 f7 Rh2 f8R Nef7 Re8 Rg2 Re7 Rh2 Ra7 Bg2 Rb7 Bb6 Re1 Ba7 R7e2 Bc5 Ra1 Nf3+ Kc1 d2+ Kb1 d1N Kc1 Nh4 Kd2 Bb6 Kd3 Nf3 Ke4 d3 Nb3 N7e5 Kd5 Nde3+ Kd6 Nd5 Na5 Bd4+ Qc6 Nef7+ Kd7 Bg1 Kc8 Rh4 Qd7 Bh2 Rcb3 Re4 Bg7 Ree6 Rc3 Reb6 Rh4 Rb1 Rh3 Rd1 Rh5 Rd2
2KB1Rbr/1B2q3/2R1r1br/2bQ4/1PnpBBQ1/5BNB/3N1bnk/5Rb1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 a5 Kc4 e5 Kd5 h5 b4 d3 g4 h4 f4 h3 c4 h2 f6 Kg6 c5 e4 c6 a4 f7 d2 c7 d6 f5+ Kg7 f6+ Kg6 b6 e3 b7 a3 Ne2 a2 Bh3 Ra4 Rf1 h1R Ng3 Bf5 c8B Bd3 Ke6 Nd7 b8B e2 Bc7 e1B Bb7 d5 Bb6 Be7 f8R Ra6 f7 Nh6 Qf3 d1B Bf4 B1c2 Nd2 Ne5 Rc1 Bb3 Rc6 a1B Bc7 Qe8 Bd8 Bd4 Qe2 Bg1 Qg2 d4+ Qd5 Kg7 g6 Bef2 g5 Rb6 Bc8 Nhg4 Bb7 Bf6+ Kd6 Be7+ Kc7 Nc4 Kc8 Bb1 Bg2 R1h6 Be4 Bc5 Bf3 Qe7 Be4 Rg8 Bf3 Kh8 g7+ Kh7 Be4+ Rg6 Bf3 Rh8 g8B+ Kg7 Be4 Rgh6 g6 Nge3 Bh7 Ng2 Bf5 Bd6 Bh3 Kf6 g7 Bg6 g8B Ra6 Be5+ Kg5 Bf4+ Kh4 Re1 Bd3 Rf1 Bb1 Be4 Bc5 Bf3 Bg6 Bh7 Bh5 Bhe4 Bg6 Re8 Ba2 f8Q Bb3 Qfg8 Rb6 Rc7 Re6 Rf8 Ba2 Rc6 Bb3 Bhg4 Ba2 Bh5 Kh3 Bhg4+ Kh2 Bh3 Bh7 Qg4 Bb3 Ra6 Bg8 Rb6 Ba4 Ra6 Be8 Rc6 Bg6
5Q1R/R1r4B/B1B2n2/Kbr1P1B1/2R3R1/1rbNn1pn/B1n5/2qn1kNN w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 c4 Ke4 h4 g5 b6 d5 h5 f5 e6 a6 b7 g3 e7 g2 e8B d4 h6 d3 h7 d2 Bc6+ Ke3 Rh4 Kf2 e4 g4 e5 g3 Rg4 f4 Nc3 f3 Ne4+ Ke3 Bd3 f2 Qf1 Qf6 Ka5 Nd7 b8N Nh6 b4 Qg5 b5 Ra7 b6 Rc7 b7 Nf6 Nd7 Nf5 b8R Nd4 Ra3 Nc2 Rb4 Rg8 h8R Qf4 Qd1 f1N Nf2 Bd6 Nh1 Rf8 Nb6 Bd7 Na4 Rb8 Nb2 Rb6 Rba4 Rb3 Bh7 Be8 Nd3 Be7 Bd5 Bb5 c6 Bc5 Bde4 Bd4 c5 Qg5 Rc4 Bc3+ Kb6 a5 Bf3 Rf7 c7 a4 c8B Rc7 c6 Qh6 Ra1 a3 Ba6 a2 Bd5 Bd4+ Ka5 Bc3+ Rb4 Qg5 Rc4 Qh6 Qg4 Qg5 Qc8 Qh6 Qf8 Qf4 Nh3 Ke2 Bf7 Nfe3 Ng1+ Kf1 Bfg8 Rd7 c7 d1N c8B Rc7 Bcb7 Qg5 Bc6 Qf4 Nf3 g1N Bd2 Nh3 Ng1 Qg5 Rg4 Bd4 Rc4 Qf4 Rc1 a1R+ Ra4 Raa3 Bf7 Rc3 Ba2 Rc5 Ra1 Rb3 Rc4 Nf5 Be3 Qh6 Bf4 Nfe3 Bg5 Bc3+ Kb6 Rb2 Bf4 Ne1 Bb1 Rb3 Bab7 Rb2 Ra7 N1c2 Ba6 Rb3 Ba2 Nf5 Bd2 Bb2 Ka5 Qe3 Be1 Qc1 Bd2 Bd4 Bh6 Nfe3 Bg5 Bc3+
1KbN1nB1/3r1R2/1R2nbN1/r2rprrB/1B1B1B2/3PN1bk/Q7/Q3B1q1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 c5 f4+ Kh6 b4 a5 g4 h3 g5+ Kg7 g6 Kh6 d3 c4 b6 e6 b5 c3 b7 a4 f6 c2 b6 h2 f7 a3 d6 a2 d7 Ra4 f5+ Rf4 f6 Kg5 g7 Kh4 Ne2 h5 Be3 c1R Na3 Na6 b8B Rb4 b7 Ne7 Kd6 Rh7 g8B Nc5 Nf4 Ra4 Rb1 a1B Nc2 Ra5 Be2 Ng6+ Kc6 Kg3 Rf1 h4 Rb6 Bd6 f8Q h1R f7 h3 Bh5 Qg5 d8N h2 Bc7 Qg4 b8B Rg1 Qe2 h1R Qg7 Rh4 f8B Bd4 Be7 Nf8 Ng6 Kh3 Rf2 Bh2 Bg3 Rcf1 Kc7 Rg2 Rf6 Rf5 Bed6 Ba1 Be1 Qd4 Qf2 Rgg5 Qe2 Re4 Bef4 Qf2 Ne3 Ree5 Qa2 Rd5 Bde5 Bb2 B5c3 Qg1 Bb4 Bg3 Be5 Nfd7 Qh8 Re7 Rf7 Ba1 Bf4 Bb2 Qc3 Ba1 Qc1 Bf6 Qca1 Nf8+ Kc6 Qh1 Bbe5 Red7 Bb2 e5 Bd4 R7d6+ Kc7 Rd7+ Kb8 Nce6 Bbc5 Qf1 Bcb4 Qg1
nb1K1Q1N/RBR2bbn/3n4/RBPnp1kB/8/1N5r/1BRRN3/2n1q2r w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 b4 h4 c4 a4 g4 a3 f4 h3 g6+ Kf6 g7 d3 c5 h2 g5+ Kf7 b6 d6 f6 Kg6 f5+ Kh7 b7 a2 f7 d2 f6 Kg6 b5 Qa5 b6 Nc6 b8R Kf5 b7 Nd8 g6 Ne6 Kc6 d5 Qf3+ Kg5 Bb5 d4 Ne2 d3 Bb2 d1N Nd2 Ne3 Rhd1 h1N Nb3 Nd5 Rd2 Nec7 Qf2 Bd6 f8N Be6 f7 Ng3 Rc8 Rh1 b8R Ngf6 g8B Nf5 g7 Nh7 Ng6 Ra7 f8R Na8 Rfe8 Bf7 Re7 Ra6+ Rb6 Bb8 Kd7 Nd6 Rc7 Qc3 Rc2 d2 Kd8 d1N Nh8 Qe1 Red7 Ra3 Ra6 N1c3 Ra5 Nf8 Rd1 a1B Rdd2 Na2 Bh7 Nc1 Be4 Nh7 g8B Bh5 Qf8 Bf7 Nbd4 Rah3 Nb3 Nc3 Bb7 Nd5 Ba3 Bd4 Bb2 Be3 Re7 Be6 Bf7 Bf4 Bh5 Bf7 Rc4 Kf6 Rcc2 Bh6 Rc6 Kg5 Rca6 Ndc7 Ra7 Nd5 Rc7 Bg7
2qrR1RR/7r/3B1p2/1PB3nr/1brnN1Bk/1BrNB3/3nb3/1Q2RNK1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 h4 Kf6 e4 c5 b4 a5 d4 g5 b6 f3 e5+ Kf5 b5 Kg4 e6 c4 e7 f6 e8B c3 h6 a4 h5 c2 b7 a3 d6 a2 d5 Qa5 h7 Qa4 h6 Na6 b8B Nc7 d7 Qb3 d8B Qa3 d6 Be7 d7 Qa6 Bh3+ Kh4 Be3 c1R Ne2 g4 Ng3 Rc3 Re1 Ne6 Bd6 Ng5 Ne4 g3+ Kg1 g2 Bg4 Rb8 Bdb6 f2+ Kh2 g1R d8R f1R Bbc5 Rf4 Bf7 Rh1+ Kg2 Bf8 Bb3 Ne7 Re8 Nc6 Nbd2 Nd4 Nf1 Be6 Qd3 Rd8 Qb1 Rh2+ Kg1 Qc8 Bh3 Be7 Bg4 Bc4 Rg8 Be2 Re8 Rf8 h8R Rf7 h7 Bf8 Rg8 Rh3 h8N Rh7 Nf7 Rh2 Qd3 Be7 Rad1 a1N Qb1 Rh3 Ne5 Bf8 Bf7 Nab3 Nd3 Nd2 Bb3 Nc6 Nef2 Rfc4 Ne4 Nd4 Rc1 Rf3 Rc2 Rf5 Rb2 Nf7 Ra2 Rfh5 Ra8 Ng5 Ra7 R7h6 Rh7 Be7 Rhh8 Rh7 Rg6 Bf8 Rgg8 Qb8 Ba7 Qb6 Bdb8 Bb4 Bd6 Qc7 Bac5 Qc8
2N2bkq/2b5/QnPN2b1/2BrN1r1/b1BnN2K/4Q1nR/p2R4/1b1N2NR w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 d5 Kf2 g5 Kg3 e5 b4 a5 c4 g4 f6 a4 b6 d3 b5 e4 c5 d4 f5 d2 b7 a3 h6 d3 c6 a2 h7 e3 b6 e2 h5 e1N h6 Na6 b8Q Nc7 b7 Qd4 Qa4 d1B Qba7 d2 b8N Bb4 Q4a6 Bb3 Bc4+ Be6 Nc3 d1B Ba3 Nf3 Nd7 Qd2 Qe3 Rd8 Nc5 Qb2 N5e4 Bdc2 Nd1 Bf8 Bc5 Nd4 Kh4 g3 Rh2 Bd3 Rd2 Ne7 Rc1 Rg8 h8R g2 h7 Ba4 Rb1 Bg7 Ra1 Kf8 f7 Rd5 Rb1 Be5 Ra1 Kg7 f8N Na8 Ng6 Bc7 Ne5 Bf7 f6+ Kf8 Rb1 Bg6 f7 Nb6 Rc1 Kg7 f8N Bb1 Nfd7 Qa1 Nd6 Qc3 Nc8 Qb2 Nf6 Nef5+ Kg4 Ng3 Ne4 Rf8 Kh4 Rf5 Rd8 Qc3 h8N Rg5 Nhf7 Kh7 Rd7 Kg8 Nfd6 Qa1 Rh7 Qb2 Nh3 g1B Rh6 Bf2 Ng1 Be1 Rh2 Qa1 Rh1 Qb2 Rc2 Bb4 Rch2 Qf2 Rg2 Qf6 Rd2 Qh8 Ndf7 Nge2 Be7 Bc5 Kh3 Rh5+ Kg4 Rf5 R6h3 Ng3 Bd6 Qf6 Be7 Rg5+ Kh4 B5d6 Bf8 Bd8 Be7 B6c7 Bd6 Be7 Bc5 Bf8 Nfd6 Qh8+
2n1b1B1/1N2b1nK/1P1rQR1n/2RN3n/1BR5/3r1NRp/Bb2n3/1q1k1BR1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d6 c5 d5 h5 b6 h4 d7 f6 Kf5 h3 Kg6 a4 e4 c4 e5 f3 d6 f2 e6 f5 b7 a3 e7 c3 e8B a2 Nf3 c2 Qd5 f4 Qe6 Be7 Nc3 Ra7 Rg1 Rh5 Nd5+ Kb3 Bd2 c1N Bf7 Kc2 b4 Ra6 b5 Nc6 b8R Na7 Rb6 Nh6 Bb4 Kd1 Kh7 Ra3 g6 Rd3 Rb1 a1B g5 Bb2 g7 Qe8 d8N Bd7 g8B Nc8 g6 Re5 Qg4 Re6 g7 Bc6 d7 Rd6 Rg3 Qf8 Be6 Qf5+ Qg6 Qe4 Nb7 Qf5 d8R Be8 Ra1 Qe4 Ra3 Ne2 Rc3 Qf5 Rc4 Qe4 Bg2 f1N Rd7 Qf5 Rdc7 Ne3 R7c5 Qe4 Bf1 Nef5 Nh2 Qh1 Nf3 Qg1 Rbc6 Qh1 b6 Qg1 Ng5 f3 Bef7 f2 Nf3 Rd7 Rf6 Rd6 Bg2 f1N Be6 N1e3 Bf1 Ng2 Bef7 Ngf4 Qg4 Nfd4 Qe6 Nh5 Bg6 Re3 Bb1 Ndf5 Ba2 Ra3 Bf7 Rd3 g8R Qh1 R8g6 Nfg7 Bg8 Qh2 Rg1 Qf4 R6g5 Qc1 R5g3 Qb1
N4r1b/1B1b1BQP/2RNn1Br/2n2Rb1/3q4/1NpbB3/1n3B1R/b2kNK2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 e4 c5 b4 g5 d4 a5 e6+ Kd6 e5+ Kc7 b6+ Kb7 d6 Kc6 h5 Kd5 h6 Ke4 e7 f5 e8B f4 b7 a4 e6 a3 h7 f3 e7 c4 d5 a2 b5 g3 d7 c3 d6 g4 b6 g2 Nd2+ Ke3 Rh2 g3 Bg6 Nh6 e8B Be7 Ba6 Bf6 Bef7 Bg5 Qa4 Nf5 Qg4 Qf6 d8R Nd7 b8N Nd4 b7 Nc5 d7 Nde6 Rf8 Qd4 d8N Bd7 Rb1 a1B Rb6 Rg8 Rc6 Rg7 Qh4 Rg8 Qh6 Rh8 Qg7 f2+ Kd1 f1B Ke1 Bd3 Ngf3 Bc8 Nd7 g1N b8B g2 Bc7 Ne2 Nb6 g1B Kf1 Bd7 Bb7 Ra6 Na8 Bf2 Ne1 Bfh4 Bg3 N2f4+ Kg1 Rg8 Bf2+ Ke2 Nb3 Kd1 Bd2 Bf6 Bde3 Bhg5 Qh6 Bh8 Qg7 Bb1 Kf1 Nfd3 Bc8 Bc2 Nb7 Nb2 Nd6 Be4 Bb7 Rb6 Be8 Bf5 Rf6 Rf8 Bef7 Bd3+ Kg2 Rb4 Nf5 Qe5 Nd6 Rh4 Rf5 Rh6 Kg1 Qd4 Kg2 Be4+ Kf1 Bd3+
3RR1BQ/5P2/n2n1qbK/BnN5/1p1r1N2/1rNN2BB/r2kB1r1/1rb2R2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Kg4 c5 Kh5 b5 d4 h6 a4 c4 f4 e4 g4 b3 d6 c3 g6+ Kf6 d7 b4 a5 e3 a6 e2 a7 e1N d5 c2 g5+ Ke7 f6+ Kd6 f5 Ke5 d6 Ke4 g7 b2 g6 Ba6 f7 Nd3 f6 Bb7 Nc3+ Kd4 Bh3 b1R Bf4 c1R Bg3 Ke3 Nf3 Nc5 Ne1 Na4 Rf1 Rb3 Nd3 Ne7 g8B Rcb1 g7 Nc8 Bh7 Be4 g8B Bg7 f8N Na6 f7 Qf6 d8R Bf5 d7 Nd6 Qf3+ Kd2 Qh1 R1b2 Ne6 Bg6+ Kg4 Ra2 Nef4 Rb8 Re8 Rd8 a8N Bf8 Nc7 h5+ Kf3 h4 Kg4 Bh6 Nce6 Bg5 Nec5 Bh6 Rae1 Bg5 R1e4 Bh6 Rd4 Bg5 Bg2 h3 Rd5 h2 Bh3 Bh6 Rd4 Bg5 Qa8 h1R Qb8 Be4 Kh5 Rg1 Qa8 Rg2 Qc8 Bh6 B7f5 Rb1 Bfg4 Rh7 Be2 Rg7 Nd1 Nc3 Qb8 Ncb5 Nc3 Rg4 Rd5 Rc8 d8B Rc6 Ba5 Bf5 Nfe6 Rd4 Qd8 Be3 Nef4 Bg6+ Kh6 Rc8 Qe7 Ra8 Qf8 Ra3 Qg7 Rab3 Qh8 Nb8 Bb6 Ra2 Bc7 Na6 Ba5 Nb7 Rdd8 N7d6 Re4 Kc2 Re6 Bc1 Ree8 Kd2
nB3r1n/B3RPrN/p1nBb2b/1R6/2B1b3/2QbK1bq/5B1k/NNR3N1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 b4 Kd6 f4 c5 g4 h5 d4 e5 b6 e4 g5 e3 g6 a6 b7 h3 g7 h4 f6 h2 f7 c4 b5 h3 b6 c3 f5 c2 f6 Ne7 g8R Bg7 f8N Be6 f7 Ng6 Ra5 Be5 Qd2 Qd7 Qc3 Rh5 Nh7 Nh8 Rb5 Bg3 Re8 Nc6 Re7 Rg5 b8N Qc8 b7 Qd7 Kf3 e2 Be3 c1B Bf2 e1N+ Ke4 Nc2 Bc4 Qc8 Nd7 Ne3 Nc5 Qd7 Nb3 Rf8 Na1 Qc8 Bf1 Nc4 Kd3 Nb6 b8B+ Qc7 Ke4 Na8 Bc4 Bcf4 Ba7 Qd7 Kd3 Be5 Ke3 Bg7 Nf3 Bh6 Rc1 h1B Ng1 h2 Rb7 Be4 Rb5 Kc7 d6+ Kc8 d5 h1B Bb8 Bd3 Ba7 Bhe4 Bb8 Qe8 d7+ Kd8 Ba7 Kc7 d8B+ Kd6 Bdb6 Qc8 Bb8+ Nc7 B6a7 Qd7 Qd2 Ke5 Qc3+ Kf5 d6+ Kg4 Ne2 Na8 Ng1 Qc8 d7 Kh4 d8B Kg4 Ne2 Kh3 Ng1+ Kh2 Bdc7 B6d5 Qb3 Qh3 Qc3 Be6 Bd6 Rg7+
b2n1b1R/KN1pQ1B1/5n1n/n3BB1r/1B1q4/P1R1B1NQ/bRB3n1/4k2r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Kd4 g5 c4 b5 h4 e6 f4 b3 h6 b2 c6 b4 c5 g4 h7 b3 a3 g3 h5 g2 c7 Ra7 c6 Bb4 h6 Ra6 Qe2 Bc3+ Kc5 e5 Be3 e4 Nd2 b1B Ra2 b2 Nc4 Bb7 c8R Qe8 c7 Be1 Na5 Ba8 Nb7 Ra5+ Kb6 Qe5 Qd3 Rb5+ Ka7 Bb4 Ne2 g1N Bh3 Bf8 Ng3 Nf3 Rc1 Nh4 Rc3 Qd5 Re8 Rc5 c8B Qd4 Bg4 Ne7 Bd1 Ng8 Bc2 Rd5+ Nc5 Re5 Ba6 Rd5 Qf1 Re5 Bad3 Nc6+ Ka6 Nd8 Qh3 Rd5 Nb7 Re5 Ra1 Rc5 Ka7 Ba2 Rf1 b1N Rf2 Nd2 Rh2 Kf7 f6 Kg6 f7 Nc4 f5+ Kf6 Re2 Na5 Rg2 Bd6 Rf8 Ke5 f6 Nf5 Re8+ Be7 f8Q Kd5 f7 Nf6 Qg7 Bd6 f8B Be7 Bg5 e3 Bf4 e2 Be3 Bd6 Qe7 e1N Rf2 Ng2 Rd2 Rg8 h8B Rg6 h7 Nh6 Bf5 Rg5 Rcd3 Kc4 Bhg7 Rh5 h8B Rh4 Rb3 Rh5 Rb2 Kc3 Rf2 Rh4 Rf3 Rh5 Bg1+ Kd2 Rc3 Rh4 Be3+ Ke1 Qg4 Rh1 Qh3 Nh7 Be5 Nf6 Bhg7 Bb3 Qe6 Bc4 Be7 Ba2 Rh8 Bc7 Qf7 Rb5+ Bc5 Bd6 Qe8 Bf8 Qe7 Qd6 Bb4 Qd4+ Kb8 Rc5 Ka7 Nfg8 Bh7 Nf6 Bc7 Qd6 Bb8 Rg5 Bhf5 Rh5 Bc7 Qf4 Be5 Qd4+
1BRB1QQ1/1N1R3b/k1N3b1/b3Nnn1/2p3Nr/2n1rBr1/4Pbq1/N4KN1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Kd7 b4 f5 h4 a5 b6 c5 h6 g5 d6 Kc6 h5 Kb5 b7 a4 d5 c4 h7 a3 d7 f3 d6 f2+ Kd2 a2 h6 g4 Na3+ Ka6 Nc2 f4 Bg2 f1N+ Ke1 g3 Bf3 g2 Qd5 Ne7 Qg8 Nbc6 b8B Ng3 Be3 Ra7 Bb6 Nd4 Rd1 Ndf5 Na1 Ne4 Ba5 Qc7 d8Q Qb7 d7 Ng5 Rh4 Bg7 Qdf8 Bd4 d8N Nd5 Rh3 Qa8 Nb7 Nc3 Bd8 Be6 Rd2 Bf7 Rg3 Bb6 Rd7 Bg6 Rg4 Kb5 Rh4 Ra3 Rh2 Ba5 Kf2 Ka4 b5 Rb3 b6 Kb5 Qgg7 Rg8 h8N Ka6 h7 Ra3 Nf7 Rb3 Bh5 f3 h8N Bh7 Ne5 Ra3 Nb3 a1R Nhf7 Rd1 Nh6 Rd4 Ke1 Rh4 Na1 Bg6 Nhg4 f2+ Kd2 f1B Ke1 Bh7 Qh8 Rg7 Qhg8 Rg6 Nh6 Re6 Bf3 Rb3 Nhg4 Re7 Nh3 g1B Rh1 Bd4 Ng1 Bg2 Rh3 Bh1 Kf1 Bf2 Rg3 Rh2 Rh3 Ra3 Rh6 Rh4 Rc6 Rb3 Rc8 Re8 Bc6 Be4 Bd5 Bb1 Bf3 Bc2 Nd3 Re4 Nde5 Re3 Bh1 Ne7 Nd6 Reh3 Ba7 Nd1 Bg2 Bcg6 Be4 Bd2 b7 Rhg3 Bh1 Nf5 Bg2 Bde3 Bc6 Bb6 b8N+ Ka5 Bg2 Rbe3 Bd5 Qc6 Nb7+ Kb5 Be4 Nc3 Bg2 Qd5 Nbc6 Ka6 Bb8 Qe4 Bh3 Qh1 Bg2 Ba5 Bf3 Qg2+
8/k2BK1Q1/1r1BN1Br/pn6/br1Qn1n1/2BNBb2/1RrbP3/R3NBq1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 b4 c5 d4 Kc7 g4 Kb6 g6 a5 g7 h5 d6 h4 d5 h3 d7 c4 g5 c3 g6 c2 d6 h2 Na3 Rh4 Qd4+ Kb7 b6 Ra7 b5 Qg5 d8N+ Ka8 d7 Nh6 g8B Bb4 g7 Bc5 Nc4 Rb7 Be6 Rg4 g8B Bb4 Be3 c1R Nb2 Nc6 Nd3 Na7 Bh7 Bd2 Bg6 Rc2 Qg7 Rh4 Rb1 Ng4 Rb4 Rh6 Rb2 Rbc7 b7+ Kb8 Ba2 R7c4 Ne6 Rb4 d8B Bd7 Bf6 Be8 Bc3 Bc6+ Bd5 Bd7 Bc6 Be8 Kg2 f3+ Kg3 f2 Bd7 f4+ Kf3 Qc5 Qd4 Qb6 Ke4 f3 Kf5 Nc8 Bg2 Ka7 Bf1 Nd6+ Kg5 Ne5 Kf6 Ng4+ Ke7 Qc5 Bg2 f1N Qg7 f2 Nf3 Qb6 Nfe1 Ng3 Bf1 Nge4 Rg1 h1B b8B+ Ka8 Bc7 Bf3 Qd4 Qa7 b6 Nb5 Bd6 Kb7 Qg7 Ka6 b7 Qb6 Bh3 f1R b8Q Rf2 Qd8 Ka7 Bf1 Rfh2 Bef4 R2h5 Rh1 Qg1 Be3+ Rc5 Bg5 Rc6 Be3+ Kb7 Qb6+ Ka8 Qbd4 Rb6 Rh5 Kb7 Rc5 Ka7 Rc4 Rb3 Ra4 Rb4 Ra1 Bf7 Nef4 Bb3 Ne6 Ba4
1B1Q1q1N/K5nr/1Q2p1rP/R4R2/B2B4/nQBbNn1k/1B1b1r2/1b1Bb3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 d5+ Kc5 a5 b4 g5 f4 d3 h4 d4 c4 a4 b6 g4 b5 d2 b7 d3 h6 a3 h5 g3 b6 a2 h7 g2 h6 Ra4 Be2 Nc6 b8B Na7 b7 Nc6 Qb3 d1N Nh3 g1R Na3 d2 Bb2+ Nc3 Nc2 d1B Ne3 Qd7 Kb6 e6 c5 Na7 c6 Qd6 Ng5 Rd4 Rh5 Ncb5 Nf7 Bc2 Bd1 Rg6 Ka6 Qe7 c7 Bb1 Kb6 Bd7 c8B Na3 Ka6 Ba4 Bd7 Bb5+ Kb6 Bc4 Ba4 N7b5 Ba7 Bcd3 b8B Qd8+ Ka6 Ne7 Kb7 Rhg8 Nh8 R8g7 Bb6 Rf7 Ba5 Bg7 Bac3 Qf8 Kb6 Nc6 Ka6 Ne5 Rg5 Nc7+ Ka7 Nf3 Rh5 Ke7 f6+ Kd6 f5 Ke5 Rg5 Kf4 Rh5 Rfd7 f7 Kg3 f6 Rf4 Rf5 Kh3 Qb6 Qc5 f8Q Ne8+ Bc7 Qe7 f7 Bf6 Bd4 Ng7 Qfb8 Bh4 f8Q Be1 Qfd8 Qf8 Q8b7 Ng5 Bb8 Rf2 Nf7 Nf3 h8B Ne8 Bhf6 Bd2 Nh8 Rh7 Qb3 Ng7 Q7b6 Bbc2 Rc1 Bb1 Rcc5 a1B Ra5 Be1 Bbc3 Bb2 Bfe5 Bc1 Bb2 Bcd2 Bdc3 Qb4 Bed4 Qf8
r2NN3/KbB2BPb/p2q2B1/Q1n5/RB3B2/1R2r3/B3n1Q1/1rbknRb1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 d4 Kd6 g4 h5 b4 c5 e4 f5 e5+ Kc7 b6+ Kb7 g6 f3 Ke3 c4 b5 c3 g5 a6 e6 f2 e7 h4 e8B c2 g7 h3 d6 h2 d5 f4+ Kd4 f3 Kc5 Bg4 g6 Nh6 g8B Be6 g7 Qf6 Bc4 f1B Bd2 c1B Bg6 f2 Qg4 Bg2 Nh3 f1N Nc3 Ne3 Nf4 Be4 Rf1 h1R B8f7 Nc2 Ba2 Qe7 Qg2 Bf3 Ne4 Qh4 Nf6 Ne1 Bb4 Qh2 Ne8 Bf5 Ne6 Qg3 Bd2 Be7 Bb4 Beg5 d7 Bge3+ Nd4 Qf4 d8B Bg1 d6 Bc2 d7 Nf5 Bg5 R8h3 d8Q Ng3 Bh6 Qd2 Bf4 Ne2 Bc7 Bd5 Qdg5 Re3 Ne6 Kc8 b7+ Kd7 Kb6 Bf5 Bh5 Bh7 Bhg6 Bc6 Nd8 Qd6 Ka5 Be4 b6 Bc6 Q5d5 Ke7 Qb5 Nd7 b8R Nc5 b7 Bf3 Rc8 Bc6 b8B Bb7 Rb1 Qc6 Bf4 Qd6 Rc6 Kd7 Kb6 Ke7 Qa5 Kd7 Nc7 Ke7 Rb3 Kf6 Bh6+ Ke5 Bf4+ Kd4 Ne8 Reh3 Bc7 Rc3 Be5+ Ke3 Bh2 Kd2 Bg3 Rc8 Ka7 Kd1 Bf4 Re3 Rb6 Rhh3 Ra3 Rb3 Ra4 Rhe3 Ba3 Rb2 Rb3 Rb1 Bb4 Ra8#
R3qB2/QK2R1Qb/R2RBN2/q3br2/1r5p/N1n2P2/bbQR2R1/n2b3k w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 c4 e5 b4 h5 g4 a5 f6 Ke6 f7 a4 f3 a3 b6 h4 b5 a2 c5 Ra6 b7 Rh7 g6 Ra8 g7 Qa5 g5 Kf5 c6 Rh6 c7 Be7 f8Q+ Bf6 b6 Rh5 g6 Nc6 b8R Nge7 g8R Be6 Rd8 Rb8 Ba3 Kf4 c8R Kg3 g7 Rf5 b7 Kf2 Be2 Kg2 Qc2 Bf7 Rd6 Nb4+ Kd2 d3 Ke3 d2 Rc7 d1B Nh3 e4 Bc4+ Be2 Nf2 Bd3 Rd1 Be5 Rd2 Be6 Ng4+ Kh1 Nf6 d4+ Kf2 Bf7 Be6 Ned5 Re7 Nc3 Rh8 Bg8 Rh6 Bh7 g8R Bc4 Rg2 d3 Ke3 Bd5 Qg7 Bb3 Rde2 d2 Rhg6 d1B Red2 Bf4+ Kd4 e3 Ra6 e2 Rh6 e1Q Rhg6 Ra8 b8Q Bc4 Qa7 Rb8 Bd7 Bcg8 Be6 Be5+ Kc4 Nc6 Bd6 Nd4 Na3 Nb3 Rh6 Ne4 Bc5 Rb4+ Kd5 Nc3+ Kc6 Bf7 Red7 Qe3 Bf8 Qe1 Re7 Qe2 Rb1 a1B Rc1 Bb2 Ra1 Ra4 Ra2 Na1 Kb7 Raf4 Qb6 Qeb5 Ra8 Qe8 Qa7 Re4 Rd6 Bfg8 Rgd2 Ref4 Rg6 Rd4 Rgg2 Rb4+ Nb5 Rff4 Bf7 Qad8 Raa6 Qa5 Bd5 Rf5 Bb3 Rbf4 Na3 Rd4 Ba4 Bf7 Bd7 Ba2 Be6 Rb4+
1QR3r1/7N/1rrq1rnB/RBbR1b2/1PQ3Nk/2R2K2/4Rprq/3nN2R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 h4 Kf6 d4 c5 e4 g5 b4 a5 d6 f3 e5+ Kf5 d7 Kg4 b6 f5 h6 f4 d5 c4 b7 a4 e6 c3 h5 c2 h7 a3 e7 a2 e8R Ra3 h6 Na6 b8Q Ne7 d6 Nc5 Qd4 Ra6 Qc4 Rg8 h8N Rb6 h7 Na4 Na3 Nb2 Nh3 Ng6 Re2 Kh4 Nf7 g4 Nfg5 Qf6 d8R Bf5 d7 Qd6 Be3 c1R Rc8 Rc3 Rc1 a1Q d8R Qa2 Nc2 Be7 Ne1 g3+ Kg1 g2 Kf2 g1R h8R+ Kg4 Nh7 Kh4 Rc5 Rg3 Ra5 Bf8 Qd4 Rcc6 Qc4 Rg1 Rc3 Rg5 Rec2 Rg4 Bd3 Rg5 Re2 Rg2+ Kf1 Nd1 Nf2+ Kg3 Ng4 f2 Rd2 Qc2 Ke2 Qa2 Rc8 Qb2 Rh5 Be7 Rg5 Kh4 Kf3 f1R+ Rf2 Qe6 Bc1 Bc5 Be3 Qd6 Bd2 Be6 Rd5 Bf5 Be2 Rf8 Bc1 Rf6 Bd3 Rfg1 Re2 Nf2 Ree8 Ne7 Nh6 Rg4 Qb5 Qe5 Nf8 Rg8 Ng4+ Kg5 Rh1 Qd6 Be2 Nd1 Nh7+ Kg6 Bc4 Qh2 Be3 Kh5 Bc1 Bf2 Ke2 Ng6 Qc5 Kh4 Bb5 Rg2 Qc4 Kh5 Kf3 Bc5 Re2 Kh4 Bd2 Be6 Ke4 f3 Bf4 f2 Kf3 Bf5 Bd2 Rf7 Bh6 Rf6
kq3B1R/2n5/K3rR1N/bn2Pb1B/1QrNrpN1/2N1Bq2/R1R5/1N1rr3 w - - 0 1 illegal: No possible last move
3Q3b/1Kn1nB1B/qP1QB2p/r2Q4/3r2B1/1q2nn1b/3RN1kB/1RBn2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 b4 a5 g4 f6 d4 h6 g6 a4 g7 c4 g5 a3 b6 c3 g6 c2 b7 f3 b5 a2 b6 f2 Rh2 Na6 b8B+ Qc7 Nc3 Ra7 Bh3 f1N Bg4 Ne3 Rb1 Ne7 g8B a1Q Bh7 Bg7 Qd2 Nd1 e3 Be6 Nce2 Rg8 Qd3 Bh8 g7 Rd8 g8B Bd7 B8e6 Qa3 Nc3 Qa4 Rd2 Qb3 Nce2 Ra8 Ba7 Qb7 Bb8+ Nc7 Qc4 Ra5 Qd3 Qa6 Qc4 Ng6 Qc6+ Ke7 d6+ Ke8 d5 Ne7 Kd4 Kf8 e4 Kg7 e5 f5 Qb5 f4 Kc5 Bc8 d7 f3 d6 f2 Bef5 f1N e6 Ng8 Kc6 Kf6 e7 Kg5 e8B Kh4 Bf7 Nfe3 B5e6 Ne7+ Kc5 Re8 d8Q Rg8 Bh3 Rg4 d7 Re4 Qf8 Rd4 d8Q Bd7 Bhg4 Bc8 Nc3 Kg3 Nce2+ Kg2 Qd6 Bd7 Qd8 Bc8 Bb2 c1N Ba3 Ng6 Kc6 Nd3 Bc1 Ne1 Qbd5+ Nf3 Qg3+ Kh1 Bh5 Ra1 Bf5 Na8 Qgc7 Raa4 Qcd7 Ra5 Bh2 Kg2 Q7d6 Nc7 Bd7 Qad3 Bf5 Be6 Kb7 Qdc4 Be4 Bh3 Bf5 Ne7 Bhg4 Qcb5 B5e6 Qa6+
2b2n2/2rR3B/3N1k1B/rr1qN1N1/BqR2b1N/3Nr1bP/5pn1/1QR1RK2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Ke7 e4 f5 b4 g5 h3 a5 d6+ Ke6 d7 c5 d5+ Ke5 b6 g4 b7 f3 h6 f4 b5 a4 d6 g3 b6 a3 h7 c4 Nd2 g2 Nb3 c3 Nc5 c2 Bd3 Kf6 e5+ Kg7 e6 a2 e7 Nf6 e8B Rg8 h8N Ra7 Nf7 Nd5 Bh7 Kf6 Nd3 Rg3 Ng5 f2+ Ke2 f1R N1f3 g1R Nh4 Ne3 Rb1 Qe7 d8N a1Q d7 Ra5 Ndf7 Qa2 d8R Nd7 b8R Qd5 b7 Qb4 Nd6 Ng2 Ra8 Be7 b8N Nf8 Nc6 Rb5 Be3 c1B Ra4 Rff3 Bd2 Re3+ Kf2 f3 Nce5 Rg4 Rd7 Rc4 Qc2 Rd1 Re1 Rc7 Kf1 f2 Qa2 Qbb3 Rc4 Qb4 Ra1 Bd8 Qb1 Be7 Bc3 Rd2 Bd4 Ra2 Bc3 Raa5 Bd2 Re4 Bh5 Bd8 Bd1 Be7 Ba4 Re2 Bc3 Bf4 Bd2 Bg3 Ne6 Bd8 Bh6 Re3 Ng5 Be7 Ndf7 Bc5 Nd6 Bd4 Qa2 Bc3 Rac1 Bd2 Qc2 Re2 Qb2 Bdf4 Qb1 Re3
1NRQR2r/kq2QB1n/3qN3/1b1N1N2/1N3n2/P2Np1b1/rr3qqB/2BK4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 d4 b5 f4 c5 f6 Kc7 f7 Kb6 f5 g5 h6 e5 f6 b3 d6 c4 d7 e4 a3 g4 h5 b4 d5 e3 h7 g3 h6 g2 d6 c3 Bc4 b2 Nf3 c2 Nc3 b1R Nd4 b3 Nd5+ Kb7 Nf5 Qc7 d8N+ Ka7 d7 b2 Ne6 Bd6 f8N Bb7 d8N Qe7 f7 Qg5 Nd7 Nc6 f8Q Nd4 Qe7 Nf6 Nb8 Ne2 Rh3 Rf8 h8B Nh7 Be5 Nf4 Rg3 Qf6 Rg8 Bc7 Ba2 Ba6 Qd3 Rf7 Re8 Bb5 Bb3 Qg7 Ra2 Ra1 Qd1 b1Q Ndc6+ Kb7 Ncb4 Ka7 Rb2 Ra2 Bc4 Qg4 Rb3 Rf8 Rc3 Rh8 Bd6 Ng6 Bh2 Nf4 Bb3 Qb2 Rc5 Qe5 Qd4 Qd6 Qdf6 Qg7 Qd8 Qgd7 Qfe7 Q7c6 Bc4 Qb7 Rc6 Nh5 Ke2 g1Q Rc5 Qg2+ Ke1 Ng5 h7 Nf4 Bb3 Rg8 h8N Nh7 Ng6 Rh8 Nd7 Rb8 Nge5 Qc8 Rc6 Rb6 Ned3 Qb7 Bd2 Bb8 Rc8 Bc7 Nb8 c1Q+ Bd1 Qc4 Bh5 Qc2 Bc1 Qcf2+ Kd1 Bd7 Nc2 Rbb2 Ncb4 Bb5 Bg6 Bb6 Bf7 Bd4 Nec7 Bf6 Ne6 Bh4 Qf6 Bg3 Qg5 Qda6 Qge7 Qd6
4k3/1n2N3/1RRBB1Rq/qN1rb2Q/5b1R/p1bN2nn/4QK1P/R1r2R1b w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 g5 d4 c5 f4 e5 f6 a5 d6 c4 b6 g3 d5 c3 d7+ Kf7 d6 c2 b7 a4 b5 g2 b6 a3 f5 e4 Bf4 c1N Ne2 g1Q Nbc3 e3 Nb5 Nc6 b8R g4 b7 Qc7 d8Q g3 d7 g2 Bd6 Nh6 Nf4 e2 Nd3 Qgb6 Rg1 Bg7 Qd2 Rh7 Qh8 Na5 d8R Ng4 Qb2 Be6 Rbc8 Rh5 b8R Nf2 Qh6 Bd5 Rh8 Qca7 Rc6 Nh3 Qa2 Qba6 Rbb6 Nb7 Rh7 Ke8 f7+ Kd7 f8N+ Ke8 f6 Rc8 Qc4 Bf3 Qc2 Rd5 Ng6 Qa5+ Qcd2 Q7a6 Ne7 Be4 Qh4 Bh6 Qg4 Bf4 Rh6 Bf3 Rg6 Be4 Qh5 Bf3 Rh1 g1B Bg2 Bge3 Rf1 Bd4 Bh1 Bde5 f7+ Kd7 f8R Rc7 Rff6 Ke8 Rf7 Be4 Bf3 Rc8 Bg4 Bh1 Rh7 Rc7 Nc3 Rc8 Qe3 Rc7 Be6 Rc8 Kd2 e1B+ Kd1 Rc7 Nb5 B1c3 Qd2 Ne2 Ke1 Ng3 Rhh6 Ng5 Kf2 Rc8 Qa2 Rc7 Qb2 Rc8 Qd2 Nh3+ Ke1 Qa7 Qf5 Qb8 Rc7 Bcd4 Rc2 Kd8 Rh4 Rcc5 Qh5 Bb2 Bg8 Kd7 Rc4 Qf8 Be6+ Ke8 Rc3 Qh6 Qde2 Ng5 Kf2 Rc4 Rb3 Rc1 Rb4 Bbc3 Rc4 Bb2 Rc5 Bbc3 Rcc6 Nh3+
2Rn4/1Bn4n/N1Br2rq/Bb6/Q2K2Pb/2r3Bk/QpqRN2B/1BQr4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 e5 d4 h5 f4 b5 a4 c5 g4 h4 d6 h3 d5 e4 d7 c4 a5 c3 d6 b3 f6 Kg6 a6 c2 f7 b2 f5+ Kg7 f6+ Kg6 a7 h2 Nc3 b1R Ra2 b4 Na4 b3 Nc5 Qb6 d8Q Na6 d7 Be7 f8Q Rh7 f7 Nc7 Bd3 Rg7 Ne2 Qc6 Qde8 Nh6 d8B Ba6 Kd4 Bb5 Bf4 c1R Qg8 Rc3 f8B+ Nf7 Rd2 b2 Bg3 Rb8 a8B Rb6 Qa4 Rd1 Bb7 Ra6 Re1 h1Q Bb1 Qh6 Rf1 Rb6 Na6 Bf6+ Qe5 Be7 Rf5 e3 Qf4 Qg2 Qf1 Qf2 Bh2 Rd6+ Rd5+ Qf5 Bc6 Qc2 Qe1 Ne8 Ba5 Nd8 Qg1 Nc7 Bg3 Rf6 Rc5 Rd6+ Qd5 Rf7 Bh2 Rff6 Bg7 Rfe6 Bge5 Rf6 Beg3 Rfe6 Nc1 e2 Qh1 e1N Ne2 Nd3 Qe1 Nf2 Bb7 Ne4 Rc6 Ne8 Rc8 N4f6 Qg1 Nh7 Qe3 Kf7 g6+ Kf6 g7 Nc7 g8B Kg6 Qg1 Bh4 Qh1 Rb6 Qdc4 Kg5 Qca2 Rg6 Bgd5 Rbd6 Qg2 Rg1 Qf1 Rh1 Qc1 Rd1 Be5 Bg3 Bc6 Kh4 Bf4 Be1 Bfg3+ Kh3 Bb7 Rde6 Bdc6 Ref6 Bd6 Bh4 Bdg3 Rd6+
N3KB1k/N4BRb/5Q1n/rN3Rr1/pN5q/NN1Q2Qb/1Pb5/2n1bn1q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Ke4 e5 f4 c5 g4 h5 d4 a5 d6 a4 Kd5 h3 d7 c4 Ke6 e4 d5 e3 g5 h4 d6 e2 f6+ Kh7 Kf7 e1Q f5 h2 b6 h3 b7 c3 Na3 c2 Qd3 Qc7 Ne2 Qb6 d8N Qb3+ Ke8 Be6 f7 Qd1 g6+ Kg7 d7 Nc6 b8N Bc5 f8N Nb4 Ndc6 Nh6 d8N Bg8 Ned4 Nd5 Na6 Qb5 Rg1 h1B Nc7 h2 Nfe6+ Kf6 g7 Rb8 Nb3 Bf2 Na8 Qb4 Nec7 Qh4 Ncb5 Bh7+ g8Q Bg2 Nca7 Bh3 Rg7 h1B Bd2 c1N Bb4 Rb7 Bf8 Be4 Ndc6 Ne3 Nb4 Be1 Be2 Rd7 Bh5 Nf1 Bf7 Rd6 Rb1 Ra6 Ra1 Ra5 Rb1 Na2 Rc1 Qdh5 Rc2 Nc1 Rf2 Ke5 f6 Beg6 Qd8 Bc2 Qd3 Qd1 Bh5 Qf3 f7 Qd5 Rf5+ Ke6 Rg4 Qh1 Qg5 Rg8 Qf4 Rg6 Qfg3 Rf6 Rg7 Rg6 Be7 Rg4 f8Q Rg5 Qh8 Bg8 Bf8 Bh7 Re5+ Kf6 Bf7 Bc3 Rc5 Be1 Rg8+ Rg7 Bc4 Ng4 Rf5+ Kg6 Bf7+ Kh6 Be7 Rg5 Qhd4 Bg6 Bd6 Kh7 Rg7+ Kh8 Bf8 Bh7 Qf6 Nh6
n2BR1r1/n1KN3B/1B1rQ1q1/4B3/pB5R/q1P2Nb1/nkb3BR/2nr2Q1 w - - 0 1 illegal: No possible last move
n3k2b/bB2q2N/2rBn2Q/1b1RPK2/R1qB2Q1/1p1B4/rB4qN/1qB4R w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 b5 Kg3 f5 Kf4 c5 a4 c4 e4 c3 h4 c2 d4 b3 a5 b4 h6 g6 h7 b2 e6 b3 d6 Qb6 d7+ Ke7 d8B+ Ke8 a6 Qa7 e7 Nf6 h5 Qb7 h6 Nc6 a7 Nb4 d5 Nc6 d6 Bg7 Bc7 Bd7 Nd2 b1Q Nh3 Nd8 Ng5 Bb5 Qg4 Nd7 Bd3 Nb6 Nf1 Bf6 Ra4 Ne6+ Kf3 f4 Nh2 Rc8 a8B Bd4 Bb8 Rc6 Bc7 Qa7 Bb7 Na8 Bb8 Rf8 h8B Rf7 Nh7 g5 Bc7 Ba1 Bhb2 Rf5 Ba3 Bh8 Bab2 Rf7 e5 Qc5 Ke4 f3 Bb8 f2 Ba7 Qc4+ Bad4 Rg7 Kf5 f1Q+ Bf4 c1Q d7+ Kf7 e8R Qg2 d8B Qcg1 Qf3 g4 Bc7 g3 Bfc1 Qe3 Rd8 Qg5+ Ke4+ Ke7 Rd5 Ke8 Bd6 Qe7 Kf5 Rg4 Qd1 Re4 Qg4 Re2 Bba3 Ra2 Bab2 Qe2 Nf8 g2 h7 Bf6 h8Q g1B Qh7 Bh8 Qh6 Qg2 Nh7 Be3 Bdc3 Bc5 Bd4 Ba7
1N1b3n/2B1QbK1/RBB5/1rq1P3/np1B3N/kB4Rq/2B4n/1nq1rQN1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 Kg4 b5 Kf5 c5 h4 b3 e4 g4 a4 g3 d4 g2 h6 b2 e6+ Kd6 h5 f6 Kg6 b4 h7 f5 a5 c4 a6 f4 h6 c3 e7 c2 e8B f3 a7 f2 Nd2 b1Q Rh3 Be7 Ba4 Qb3 Rg3 Nc6 Bc4 f1N Kg7 Qc7 Ndf3 Ba6 Nh4 Nb8 Be3 Nh2 Qf1 c1Q Bf2 Qbc3 Bc2 Qc5 B4b3 Bc4 Ra6+ Kd7 d6 Bf7 Be3 Bd8 Bf4 Qd3 d5 Ne7 Be5 Rf8 h8B Re8 h7 Ng6 Bd4 Qf3 Bf2 Qf5 Bd4 Qh3 Be3 Kc8 d7+ Kb7 Bf4 Re6 Bc7 Rb6 d6 Kc6 Qf6 Kb5 Qe7 Rb7 Bb6 Bc7 d8N Nd7 Nc6 Bd8 Bc7 Nb6 d7 Na4 Bb6 Rc8 Nb8 Rc6 a8B Re6 Ngf3 g1N Bc7 Ne2 Ng1 Nec3 Bb6 Bc7 d8B Bf4 Bdc7 Bg5 Qd6 Bd8 Qe7 Qb1 Kh6 Qb2 Bd4 Qc1+ Kg7 Nb1 h8Q Re5 Qhf8 Nh8 Ng2 Rf5 e5 Rf1 Nh4 Re1 Bd1 Ra7 Bbc2 Kc4 Bc6 Rb7 Be3 Kc3 Bf2+ Kb2 Bd4+ Ka2 Bb3+ Ka3 Bdc2 Bh5 Qf1 Bf7 Ba7 Rb5 Bab6 Be6 Kf8 Bc4 Kg7 Bf7
1qB5/BBR4Q/1RNn2r1/1p3BBb/2n3Nb/3rn1nQ/1BPb2R1/3qk2K w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 h4 Kf7 a4 Kf6 f4 d5 Kf2 b5 Kg2 e5 h6 g5 a5 e4 h5 b3 a6 g4 c6 e3 a7 e2 h7 e1Q c7 b2 h6 g3 Rh2 d4 Ne2 d3 Kh1 d2 Na3 b1N Nd4 Bb4 Qf3 d1N Rg2 Qe3 Nc4 Qee8 Ne5 Na6 Bd3 Ne3 Ndc6 Nc5 Ra6 Nb7 Rb6 Nd6 Qh5 Ne7 Qh3 Bb7 c8B Rg8 h8Q+ Rg7 h7 Nd2 Qg8 N2c4 h8B Bd2 Qgh7 Rb8 a8B Qf8 Nb4 Bf3 Nbc6 Bh5 Bab7 Ra8 Bb2 Ra3 Be4 Rd3 Ng4+ Kf7 f6 N7f5 Bc1 Qd7 Bb2 Ke6 f7 Rg6 Bhf6 Qd8 f8R Qc7 Bf3 Qb8 Bd1 Kd5 Bg5 Ke4 Rf7 Qd8 Be2 Qd7 Bf1 Kf3 Re7 Nd4 f5 Ne2 f6 Qd8 f7 Qd7 Nh6 Qg4 f8B Qd4 Rg1 Kf2 Rc7 Ke1 Bg7 Qg4 Bgd4 Qf3+ Bg2+ Qf1 Be4 g2+ Kh2 Ng3 Ng4 Ke2 Bef5 Qb1 Rf1 Qd1 Rf2+ Ke1 Kg1 Ne2+ Kh2 g1B+ Kh1 Bh2 Rg2 Bg3 Ra6 Bf2 Ba7 Bh4 Rb6 Ng3+
1r3N1B/bq1BB1B1/r2K3P/1RRn3k/b2pN1q1/R1r2Q2/2Br2Bn/5Q1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kf3 f5 c4 Kf7 h4 d5 e4 a5 b4 f4 h6 Kg6 c5 a4 e6 d3 h7 d2 h5+ Kh6 e5 a3 c6 d4 Ke4 a2 c7 g4 b6 f3 e7 f2 e8Q g3 e6 g2 Ke5 Ra6 b7 Ne7 b5 Qd7 b6 Qc6 Nc3 Bd7 c8B Rg8 h8B Rg6 Qf7 Qc4 Nge2 g1R Nf4 Ra5+ Kd6 Qb3 Ne4 Nbc6 b8R Ne5 b7 Rg8 Bg2 f1B Ng6 Ba4 Qff3 Nd5+ e7 Ng4 Bd7 Rc5 Ba3 Rc3 Rc8 Qb4+ Rc5 Nh2 b8B Qb7 Qb1 Be2 Qbf1 d1Q Rb1 a1R Rbb5 Ra2 Bb4 Rd2 Ba3 Bg7 e8B Bc4 Nf8 Be5+ Ke6 Bc7 Bg6 Bb6 Bbe5 Ba7 Kd6 Bcb3 Nh7 Rb8 Nf8 Ng4 Rh3 Nh2 Nf2 Kg5 h6 Bc2 Beg7 Be4 Qg3+ Qg4 Qf3 Rh1 Rg3 Kh4 Bgf5 Kh5 Bb4 Bb1 Bc2 Ba2 Ne4 Rg1 Qc4 Ra1 Qcf1 Bc4 Ba5 Raa3 Bd8 Ba2 Be7 B2b3 Ra5 Bc6 Rab5 Ra6 Q3e2 Ba4 Re3 Rc4 Ra3 Rc3 Qef3 Rd1 Nd2 Re1 Qg3 Re2 Bh1 Rg2 Ke5 Nb6 Kd6+ Qf5 Qgd3 Bf3 Ne4 Rd2 Bg2 Qg5 Bgh3 Bh1 Bg2 Nd5+ Bc6 Ra5 Bd7 Qg4 Qdf3 Ra6+
NR1N1rqB/1Q1KNN2/2B1pRrn/1P1bn3/2kN1r2/6Rr/3q1b1R/1B4n1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 a5 g4 h5 b4+ Kb6 f4 c5 d4 c4 g5 h3 d6 e6 g6 h4 d7 c3 d5 c2 d6 h2 g7 h3 f6 a4 f7 a3 f5 a2 f6 Rh4 Bb2 c1N Na3 Rg4 Qb3 Ra4 Ne2 Qe8 d8N Na6 d7 Be7 f8R Rg6 f7 Nb8 Nd4 Nh6 g8B Ra7 Nc4+ Kc7 Bh7 Ra8 Nb6 Ne2 Bg2 Bh4 Rag1 a1Q Bc6 Qc1 Rg3 Qd2 Qd5 Ng1 Qf3 Rg4 Bb1 Bb7 Qb3 Rg5+ Kf6 Ra4 Na8+ Kd6 b6 Rg8+ Rg5 Bf2 Rg3 Rg5 b5 Kc5 Qf3 Kc4 Bc3 Bc8 b7 Rg6+ Ke5 Rb4 Kd6 Ra4 Rh8 Qg8 f8N Rb4 Nf7 Ra4 d8N Nd7 b8R Bb7 Bb2 Ne5 Rh7 Ra3 Qe4 Rf3 Ba1 Rf4 Qg2 Ne2 Rf1 h1R Ke7 h2 Qe4 Rgf6 Ng6 Rg1 Kd6 h1R Ne7 Rg2 Bb2 Ng1 Bc3 Nhg4 Rh2 Nh6 Qh7 Nd3 Kd7 R6f5 Rgh3 Rg6 Rg3 Rff6 Nc2 R6f5 Bh8 Rff6 Nd4 R6f5 Rhg2 Rh3 Rh2 Ne5+ Kc7 Rff6 Nd6+ Kc5 Bf3 Be3 Nec6 Rfg4 Bd5 Rf8 Rf6 Nd3 Qd7 Re4 Ne7 Ne5 N6f7 Rf4 Qc8 Bc6 Qb7 Bf2 Bf3 Kc4 Bh1 Bf3 Bg2 Bg4 Bc6 Bf3 Kd6 Bd5 Kc7 Neg4 Kd7 Ne5+
2r3Nk/1b2B3/PRBR1Rp1/r1R4N/3qB1R1/b4qbN/KB1Q2b1/1n3n1q w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 b5 Kd2 c5 Kc2 f5 Kb2 Kf7 e4 c4 a4 g6 h4 Kg7 h6+ Kh7 e6 b3 a5 f4 e7 b4 e8N f3 a6 f2 d6 Qc7 h5 Qa5 d5 Qb6 d7 Nf6 d8R Qe3 d6 Bg7 d7 Ng4+ e5 Ra7 Qd2 Rf8 Bd3 f1B Be4 Kg8 h7+ Kh8 Nc3 Ra8 e6 Qf3 e7 Nc6 Nh3 Nd4 Ne2 Nc2+ Nf6 Nge3 e8B Na3 Nef4 Bg2 Rf1 Bb7 Rb1 c3+ Ka1 c2 Bb2 c1B Ng8 Rf7 Rc8 Re7 d8R Re5 Rd6 Ra5 Rc5 Be5 B8c6 Rc8 Rg1 Nf1 Rf6 Kg7 h8B+ Kh7 h6 Bc7 Bc3 b2+ Ka2 Be5 Bg7 Bd6 Nh5 Bg3 Bf8 Kh8 h7 Be1 Ra1 Bg3 Be7 Nb1+ Kb3 Na3 Ra2 b1Q+ Rb2 Qbd3 Ka2 Qd4 Rb3 Rb5 Bb2 Nb1 Ba1 Ba3 Bb2 Ra5 Rd3 Qde3 Rdd6 Qd3 Rb5 Qd4 Rb6 Nh2 Rc1 Nf1 Rc5 b3+ Ka1 Nc3 N5f4 Kg7 h8R Nh2 Rh4 Qff2 Rde6 Qf3 Nh5+ Kh8 Rd6 Nb1 Qc3 Nd2 Bc1 b2+ Ka2 Nc4 Kb3 b1Q+ Bb2 Qh1 Ka2 Nd2 Rg4 Nb1 Qd2 Nf1
QQBQ4/r1R2Q1P/Q1N1N1n1/4BqrQ/1bb2q2/1r6/1p2nNK1/1n2k1nR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 Kf2 Kf6 a4 b5 h4 c5 d4 g5 a5 e5 h6 c4 h7 b3 d6 c3 d7 c2 a6 b2 a7 g4 d5 b4 h5 g3+ Kg2 b3 d6 e4 h6 e3 Nd2 b1N Ndf3 b2 Qd3 e2 Nd4 e1R Qa6 Qc7 d8Q+ Ne7 d7+ Nc6 Ne6 Nd4 Nh3 Ne2 Nf2 Rg8 h8Q+ Rg7 Ra3 Qa5 Rc3 Rd1 h7 Rd3 Rc7 Rb3 Be3 c1Q Bd4+ Qe5 Qe8 Qe3 d8N Ng6 Nc6 Bb4 Bc3 Bd7 Qb8 Be8 Qbb5 Bf7 Qhb8 Ne7 Qd5 Rg5 Qf3 Ng6 Qh5 Nd4 Be2 Qd3 Bg4 Ne2 Ned8 Bc4 Ne6 Qd7 Bd4 Kf7 f6 Qe4+ Kh3 g2+ Kh2 g1N f5 Qf3 Be5 Qf4+ Kg2 Ng3 Qd8 Rb8 a8Q Rb7 Qdb8 Ra7 Ncd8+ Ke8 f7+ Ke7 Bf3 Qd2 Bb7 Qc1 Bc8 Qf4 Bd6+ Kf6 f8Q+ Qf7 Nc6 Bb5 Ne7 Bc4 Qd8 Qf8 Bc5 Ke5 f6 Qf7 Nc6+ Kf5 Bd4 Qf8 Ng4 Ke4 f7 Kd3 Nf2+ Kd2 Bf6+ Ke1 Be5 Qd6 f8Q Qd3 Qfe7 Qdf5 Qf7 Ne2+
2RB2R1/1bb2Pr1/5q2/RBn1pnqR/B2Q1n2/N3Nq1B/nK3k2/1N1Br3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 d5 c4 h5 Kc2 a5 f4 e5 g4 a4 f6 Kg6 b6 a3 b5 h4 f5+ Kh7 f7 a2 f6 Kg6 b7 h3 b6 h2 c5 d3+ Kb2 d2 c6 d4 c7 d3 Na3 Bg7 f8N+ Kf7 Ne2 Na6 b8R Bh6 b7 Ra7 Nh7 Ke6 g6 Kd5 g7 Ke4 g5 Kf3 g6 Ne7 g8B Nf5 g7 Be3 Bb3 Bb6 g8B Nc5 Nc3+ Kf2 Ncb1 Qf8 Qg4 d1Q Bg5 d2 Bb5 Qf3 B3a4 d1Q Qb4 Qdd8 Bgb3 Rg8 Bd1 Rg7 Ra8 Qf7 b8R Bb7 c8B Bc7 Qc3 Q7h5 f7 Qf6 Be6 Qhg4 Rg8 Ra6 Bc1 Qgg5 Rac8 Rd6 Qd3 Rd4 Bd2 Re4 Ba5 Re1 Qc3 Nd6 Bh3 Nf5 Rg1 h1N Qd4+ Re3 Re1 Nhg3 Rh1 Nh5 Bb6 Nf4 Ba5 Q6c6 Nf6 Qb6 Nd5 Qbf6 Qd3 Re1 Ne3 Bb8 Bd8 Bc7 Nc3 Na6 Qd4 Nb4 Rc1 a1N Ncb1 Na2 Ra8 Ba5 Rcc8 Bc7 Ra5 Nb3 Rg1 Qh4 Rg5 Nc5 Rh5 Qhg5
q6Q/1k2P2q/N2bb1q1/1p1r3n/1R1n3Q/3BB2B/KBnN4/1RQBr1qB w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Kd7 a4 h5 e4 f5 d4 c5 Kd2 Kc7 Kc2 b5 Kb2 c4 a5 f4 e6 f3 d6+ Kb7 d5 c3+ Ka2 c2 e7 f2 e8B h4 e5 h3 d7 h2 e6 Qf6 d8B Qg6 a6+ Ka7 d6 Qf7 d7 Ne7 g6 Qg7 g5 Rg8 Nf3 Qd4 g7 Qe4 g6 Qf4 Nc3 Qc7 Bd3 f1Q Bb2 c1Q Nd5 Nec6 Nd2 Qf5 Rb1 Bc5 Bg5 Nd4 d8Q Nd7 Be3 Bd6 Qh4 Nf6 Bd7 Rd8 g8Q Nh5 g7 Qg6 Qh8 Q7c2 Rg1 h1Q g8B Qhg2 e7 b3+ Ka1 Kb8 a7+ Kb7 Bh3 Be6 Nb4 Qf3 Rg4 Rd7 Qe2 Qg1 Na6 Rf8 Qh2 Rf5 Qe2 Re5 Qd1 Qf8 Qc1 Qa8 Re4 Rd8 Rf4 Rd5 Rg4 Rf8 Bh7 Rf1 Be2 Re1 Bd1 Nc6 Rb4 Nd4 Bc3 b2+ Ka2 Q6g4 Bd3 Qg6 Ra1 b1N+ Bb2 Na3 Rb1 Qc6 Qh7 Qag8 Qh8 Q8h7 a8B+ Kb6 Bb7 Nc2 Bc8 Qa8 Bg2 Bg8 Bch3 Be6 Bh1 Kb7
kbNRq1bn/1R2p1KQ/2R5/q6B/B2q1n2/R2q1R1N/5BPn/Q4rrR w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 a5 Kf4 c5 Kf5 h5 Kg6 Kc7 f4 Kb7 d4 c4 b4 h4 d6 h3 f5 h2 d7 a4 d5 a3 f6 e3 d6 c3 b6 c2 f7 a2 b5 e2 Nh3 e1Q Na3 Ra4 Nc4 Qe5 Be2 Rb4 Be3 c1N Bh5 Qg3 Bf2 Bg7 f8R Be5 Rf3 Nf6 Kg7 Nd3 g6 Qe8 d8Q Nc6 d7 Ka8 Nd6 Nf4 Qc2 Rb1 b7+ Kb8 Qe4 Rf8 Qa5 Rg1 d8R Qg5 Rc1 a1Q Qf5 Qd4 Qa1 Qd3 Rc3 Qh4 Ra3 Qg4 Qe4 Qgd7 Qf5 Qc7 Qe4 Qa5 Qf5 Qd4 Qc2 Ka7 b8R Be6 Rb6 Bg8 Nc8+ Ka8 Rb7 Bd6 b6 Bb8 Rd6 Ne5 Rc6 Nfg4 Qf5 Bd5 Qf7 Bb3 Qg8 Qd3 Qh7 Nf7 Rc3 Ne2 Rf6 Qeb5 Bd4 Ng3 Rd7 Qd1 Rd8 Qe8 Rfc6 Re1 Rf1 h1Q Rc1 Bf4 b7+ Kb8 R1c3 Qg1 Be3 Qf2 Rh1 Rg1 Bd4 Nh2 Re3 Ng5 Kh6 Ne2 g7 Qd3 g8B Nf7+ Kg7 Nh8 Bc5 Ba2 Bb3 Bg3 Bd1 Bg8 Ba4 Qf4 Bd4 Qh4 Bc5 Rff1 Rf3 Bc7 Bf2 Qhe4 Rcf6 Nf4 Rc6 Qee3 Nd6+ Ka7 b8R Qec5 Rb2 Bb8 Nc8+ Ka8 Rb7 Qcd4+
nb1N3k/Br1pb1RN/2r1R2B/1rQ4q/2rP4/K4RBR/n2Q2R1/1b3q1R w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 h4 Kf7 c4 g5 f4 Kg7 d4 e5 Kd2 a5 Kc2 a4 Kb2 b4 c5 e4 h6+ Kh7 c6 b3 h5 e3 f6 e2 f7 e1Q c7 g4 f5 g3 f6 g2 Na3 Be7 f8Q Ra5 f7 Nf6 Nc4 Bb4 Nh3 g1B Nd6 Qe5 Ra2 Na6 b8B Qd5 b7 Ne8 Ba7 Bh2 b8B Bb7 c8R Qf6 Rc6 Nec7 Bf4 Ba8 Nb7 Rg8 Rd6 Rg6 Nd8 Qff5 Bg5 Qf1 Qe7 Qdf5 f8R+ Qf7 Rb6 Be4 Qe5 Qd5 Rf3 Be7 Bc1 Nb4 Ng5+ Kg8 Rg1 Qf7 Qc5 Na8 h7+ Kg7 h8R a3+ Kc3 b2 Bbf4 Re6 Kb3 b1R+ Rb2 a2 h6+ Kg6 h7 Kg7 Rh1 a1R Rg8+ Kh6 Bcd2 R1a4 Rg7 Na2 h8R+ Bh7 Be1 Rc4 Bh4 Qf5 Bd2 Bb8 Bg3+ Q5h3 Rd6 Rb5+ Ka3 Rb7 Bdf4 Qh4 Rg2 R1b5 Qd2 Qh2 Rd5 Rc6 Re5 Qh4 Re6+ Bf6 Rf8 Bg6 Be3 Be7 R8f4 Qh5 Rfh4 Bf6 R4h3 Bc2 Rge7 Bb1 Nh7+ Kg6 Re8 Kg7 R8e7+ Kg8 Bh6 Kh8 Rg7 Be7
k3BNR1/2P1Rn2/1Bq2Rb1/rR2RqrN/3p3K/1RQq2B1/b4b2/2n2q1Q w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 Kd7 Kf2 Kc7 Kg3 Kb7 c4 g5 f6 e5 c5 g4 f5 a4 h6 d3 f7 a3 h7 a2 b6 e4 f6 e3 h5 e2 c6+ Ka6 c7 Kb7 b5 d2 h6 Bf5 Kh4 g3 Nh3 e1Q Nf4 Ra3 Nc3 Bc5 f8B Rb3 Na4 Qe5 Nh5 g2 Bd6 Ba3 Nc5+ Ka8 b7+ Ka7 Nd7 g1Q Nf8 Qde8 f7 Nc6 b8R Nd4 Rb1 Qee3 Bg3 Qc6 Re8 a1Q Re5 Bg6 b6+ Ka8 Bb5 Qgf2 Re1 Qd3 Bb2 Ne2 Bd4 Rc3 Rb3 Rc5 Qb1 d1B b7+ Ka7 b8R Nc1 Ba4 Qff5 R8b5 Ka8 Re7 Bb4 R1e5 Be1 Qc2 Bf2 Qc3 Bc2 Be3 Bb1 Bd4 Nf6 Be3 Rg8 h8R Nd7 h7 Rg7 Rg8 Ba2 h8Q Qab1 Rb6 Ra5 R6b5 Qf1 Bb6 d4 Qh6 Ne2 Qhc1 Qbd3 Qd1 Nc1 Qf3 Nf6 Qh1 Ng4 Nd7+ Kb7 f8R Nh6 Rf6 Nf7 Nf8 Ka8 R5b4 Qcg2 Be8 Qc6 Rbb5 Bh7 Rec5 Rg5 Rce5 Bg6
1QBn1q2/K1PB1b2/R1pkN1R1/3N1qB1/bn3b2/2q1B2r/rB3q2/Q1N4B w - - 0 1 illegal: No proof kernel
r1b3Rq/2p1nq2/kbNRn1R1/8/B1RP1q2/1rN2Bq1/1NK1RBBn/6Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 g4 h5 d4 f5 Kd2 a5 b4 f3 g6 h4 b6 f4 b7 f2 g7 f3 d6 Kc6 e5 Kb6 b5 h3 e6 h2 g5 a4 e7 a3 e8B a2 d7 Ra3 g6 Rh4 Bg2 f1Q Kc2 f2 Ne2 Rf4 Be3 Rf5 Nec3 Ra7 Na4+ Ka5 b6 Qg1 Nbc3 f1N Bf2 Rc5 Rc1 a1Q Nb2 Qe7 d8R Qe5 Rd6 Qa2 Ba4 Na6 b8N Qf7 b7 Ne7 g8R Ra8 g7 Qef4 Nc6+ Kb6 Bf3 Qgg3 Rg1 h1Q Bg2 Rb5 b8R+ Bb7 Rc8 Nc5 Re8 Nh2 Qg4 Rb3 Qg5 Nd5 Re2 Ne6 Bf3 Bc8 Rg2 Qe5 Qe3 Qgf4 Rg6 Qg3 Qg5 Ka6 Qg4 Qgf4 Qg1 Qg3 Rh8 Ne7 g8B Qef4 Bg2 Qh7 Bf7 Qg7 Rg8 Qh8 Bf3 Qhg2 Be8 Q2h3 Bg2 Q3h7 Bd7 Qhf7 Bf3 Nd8 Bh3 Ne6 Bhg2 Nf5 Rd5 Bc5 Rd6 Ne7 Kd1 Bb4 Ne4 Qf8 Rc4 Q8f7 Kc2 Ba5 Nc3 Bb6
4Bq2/P1N1Rb1n/BpnN1RK1/Qq1n2B1/1bB3k1/2rNr2R/3B4/3r2rN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 c5 Ke4 h5 d4 e5 a4 b6 g4 h4 f4 b3 d6 h3 a5 h2 d5 c4 a6 c3 a7 b2 g6 c2 g5 Qc7 f6 Rh5 Kf5 e4 f7 e3 g7 e2 Kg6 e1Q f5 Qb4 f6 Qbc4 Nf3 Q4c6 Qe1 Rh4 Bd2 c1R Ne5+ Kd8 d7 Rb4 Nc3 b1N Ne4 Q7b7 Ng3 Bc5 f8N Qcc7 f7 Ke7 d8B+ Kd6 Ne6 Rb5 f8R Rc3 Nd3 Qcc6 Rf6 Bb4 Nc7+ Kd7 d6 Rd5 Ra5 Rd4 Re5 Qb5 Re2 Qf3 Re7+ Kc6 Be2 Be6 d7 Kd6 Bf1 Nc6 Be2 Nh6 g8B Ng4 Bf7 Re4 Be8 Re3 Qc1 Rc8 Qa3 Rc1 Qa5 Nc3 Kh7 Rb1 g6 Rg1 g7 Nd5 g8B Rd1 Kg6 Qf1 Rg1 h1R Rg2 Rg1 Rh2 Qf2 Nh1 Qf4 Rh3 Qf3 Nc5 Ke5 Nd3+ Ke4 Ref7 Qf2 Be7 Qf4 d8N Qd6 Nb7 Qdc5 Bd8 Qf8 Ne1 Ke5 Re7 Ke4 Nd6+ Ke5 Nf5 Kf4 Bd3 Qa4 Ba6 Qb5 Kh7 Bf7 Nd6+ Kg5 Nd3 Nge5 Rh2 Kg4 Rh5 Nf3 Rh3 Be6 Kg6 Ng5 Bgf7 Nh7 Bg8 Nb8 Na8 Rcc1 Nc7 Nc6 Bgf7 Nc3 Bg8 Ba2 Bb3 Nd5 Bc4 Rc3 Rf2 Rge1 Rg7 Rc2 Bg5 Rg1 Bb3 Rc3 Re7 Ndf6 Bbf7 Be6 Bg8 Bc8 Bd5 Be6 Bc4 Nd5 Rf6 Bf7+
1nQrR2r/bR1B1QKb/N3RQ1Q/4bQN1/bq1p4/7P/3B3n/kbQ3b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 Kc4 e4+ d3 b4 d5+ e6 g5 b6 a5 b5 a4 h6 d4 h3 g4 b7 g3 b6 a3 h7 f6 Kg6 g2 e7 a2 e8R f5 e5 f4 e6 f3 e7 f2 Na3+ Kc3 Bd2+ Kb2 c4 Ra4 c5 Nh6 c6 Ra5 c7 Bd7 c8Q Ba4 Nb5 Nf7 Nc7 Nh6 Qf5 Ra8 Nf3 g1B Ng5 Ng4 Na6 Nh2 Rc1 a1B Rc7 Ka2 Qc1 Bb2 Be2 f1B Bg4 Qd5 Qf6 Qc4 Bd7 Ba3 Rc6 Bg7 Re6 Rf8 h8Q Qb4 Qh6 Rh8 Qf5 Be5 Kf7 Nc6 b8Q Bg2 b7 Be4 Qc7 Rd8 Qd6 Nb8 Qhf6 Bc2 Kg7 Bb1 Qb6 Ka1 Qd6 Qc4 Qc6 Bc5 Qc8 Nc6 b8Q Ba7 Qb6 Nb8 Qd6 Bg3 Qdf4 Qb4 Qh4 Be5 Qh6 Be3 Re1 Bg1 Rb6 Be3 Rb7 Bg1 Qe6 Bh7 Qf5 Bc7 Re6 Be5 Be3 d2 Bf4 d1B Bd2 Ba4 Rg8 Bc2 e8Q Qa3 Qf7 Qb4 Rge8 Ba4
QRR1Qn2/2rqK3/Nn2Q3/1b2B1kp/B1R1Rr2/b2R1PnR/3n4/1n2nN2 w - - 0 1 illegal: No possible last move
2r2k1B/b1B2N1b/N1RR1K1N/2Q3r1/rnPn4/2Np1N2/1r2B3/b1Bb1q1R w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 e5 f4 g5 b4 g4 c4 a4 h6 a3 f6 g3 h7 g2 f5 a2 h5 Qd6 h6 Be7 f7+ Kf8 b6 Nd7 b7 Bh4 b8N Bg5 b5 Ra4 b6 Ndf6 b7 Ke7 f8R Be3 Nf3 g1R Be2 Rg5 Nc3 Qb6 Rb1 a1B Qg1 Qa6 Rb6 e4+ Kc2 Be6 Rd8 d3+ Kb3 d4 Rc6 d2 Rdd6 Nd5 f6+ Ke8 f7+ Kf8 Qf2 Qa7 Na6 d3 b8B Nb4 Bc7 Ne7 Qg1 Rhg8 h8N Nf5 h7 Qb7 Qf2 Ba7 Qd4 e3 Qc5 Ke7 f8N Bd7 Ne6 Rc8 Nf4 Kf8 Nh5 Be8 Ng7 Bg6 Nf7 Qb6 h8B Bh7 Qb5 Qd4 Qc5 Qf4 Ne1 Qf2 Nf3 Qe1 Nh6 Qf1 Ne6+ Ke8 Nd8 Kf8 Bd1 e2 Ndf7 e1R Be2 Ra2 Nb1 Rb2+ Kc3 Ng7 Kd4 d1B Nc3 Nf5+ Ke5 Nd4+ Kf6 Bb3 Bd1 Ree8 Be2 Bd1 Qa5 Ree5 Qb6 Ra5 Qc5 Ra4
4r3/1BRn1B1R/RpRq1b1b/rNB1n2N/2B5/2PQ1bN1/4B1b1/1K2k1rr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 f4 h5 g4 e5 a4 d5 c6 b6 f6 Kg6 a5 d4 c7 e4 f7 h4 a6 h3 f5+ Kh7 g6+ Kh6 a7 Kg5 f6 Kh4 g7 Kg3 g5 Kf2 g6 d3 c3 b3 Ba3 b2 Be2 h2 Bc5+ Qd4 Ra6 Nd7 Na3 b1R Nb5 Rb3 Kc1 Bb7 c8R e3 Rc7 Nh6 g8B Nb8 g7 d2+ Kc2 Ra3 Kb1 Qd6 Rc6 Be7 f8N Ng4 f7 Ra5 Nd7 Bf6 f8R Ne5 Bgc4 Rg8 Rf7 Re8 Qc2 d1B g8B Ke1 Qd3 Ra1+ Kb2 Rc1 Rh7 Ra1 Bgf7 Ra5 Rc7 Bg2 Kb1 Rg8 Beh5 Bdf3 Ne2+ Bf1 Ng3 e2 Rg1 h1R Bg4 Rg7 Rg2 Rg5 Rgh2 B1g2 R2h6 Bh8 Nf6 Nbd7 Rg6 Re8 Nfh5 Bf6 a8B Rg1 Ng7 Rh5 Bb7 Rh2 N7h5 Rhh1 Qe3 Kd1 Rgh6 e1B Qd3+ Bd2 Rg6 Ke1 Rgh6 Bc6 Be2 Bcf3 Rg6 Bd8 Rf6 Bh6 Rg6 Qc6 Re6 Bf6 Rd6 Qd5 Rdc6 Qd6
1R1r4/n3q1k1/R1R2b1b/1RN2Qb1/R1q3p1/N1K1bbP1/QRB2B2/1r1N3r w - - 0 1 illegal: No possible last move
1b4B1/n1p4N/Nq1N1R2/1nq1n2k/2N1Nr1B/2rn1N1n/2P1K1QR/3Q1Q1q w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 f4 Kf7 e4 Kg6 b4 h5 e6 a5 f5+ Kh7 e7 d5 e8N h4 e5 h3 g5 a4 f6 Kg6 b6 d4 f7 d3 b5 a3 e6 d2+ Ke2 a2 b7 h2 e7 Nc6 b8N Rh4 b6 Na7 b7 Qd4 Na6 Nf6 b8Q Nd7 Nd6 Qc5 e8N Rf4 Na3 Ne5 Nf3 g1Q Nf6 g2 Nfe4 Kh5 g6 Qgd4 Rb1 a1N g7 Nb3 g8Q Qb6 Qe8 Nc5 Nac4 Ncd3 Qb5 Qdc5 Rb4 Be7 f8N Bh4 Rb3 Bf2 Nh7 Re8 Qd5 Rg8 Bb2 Rg3 Bd4 Bg1 Bf2 Rh3 Bh4 Bf2 Qb1 d1N Qb4 g1Q Qe1 Qb8 Qe6 Qa3 Rb6 Nb4 Qg8 Nac6 Na5 Be3 Nfg5 Bf2 Nb5 Nc3+ Kd2 Qg2 Bc4 Qa7 Nbd6 Nb5 Ndf7 Rc3 Nf3 Nbd3 Ke2 Qe7 Qf1 Qf8 Rg1 h1N Qbd1 Qh3 Rg7 Bd4 Ba2 Nhf2 Rg2 Qh1 Rh2 Nh3 Qgg2 Qab8 Bd5 Be3 Nc4 Bd4 Rb7 Ba7 Rb6 Qb7 Be6 Bb8 Bd5 Nca7 Rf6 Qc5 Nfd6 Qbc6 Bg8 Q6b6
b3BrRb/1q1bQq2/2n4k/p1RKN1R1/PB1R4/q4N1n/4RN1n/2q3RQ w - - 0 1 legal: proof: g4 b5 h4 g5 b4 a5 d4 c5 bxc5 f5 Bd2 e5 dxe5 Ra6 Bc1 Rg6 Qd2 fxg4 Qd1 g3 Bh3 g4 Bf1 Rg5 hxg5 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 Kg7 Ke4 h5 c4 h4 a4 d6 f4 b4 f5 g2 e6 b3 e7 b2 e8R h3 f6+ Kh7 c6 g3 f7 h2 c7 Nc6 c5 Bg7 Nc3 b1B+ Kd5 Bf8 e4 Nh6 e5 Qd7 e6 Be7 f8N+ Kg7 g6 Nd8 c6 Bc2 Bb5 Bf6 e7 Ng4 Nf3 g1N Bd2 g2 Ne4 Nh3 Rg1 h1Q Nf2 Nh2 Bb4 Kh6 g7 Bd3 Ng6 Rf8 g8R Bh8 Nge5 Be4+ Kc4 Qf5 Rg5 Bd7 c8R d5+ Kc5 d4 c7 d3 Rb8 d2 c8R Bb1 Kd5 Nc6 Qe1 Bc2 Rd1 Qf4 Qf1 Qe3 Rc7 Qa3 Rbd8 Bb1 Re1 Bd3 Re2 d1Q Qe1 Qdc1 Qd1 Rf6 Reg8 Rf8 e8Q Qf4 Qe7 Be4+ Kd6 Qf7 Qe1 Nd4 Rc5 Ba8 Qa1 Nc6 Qb1 Qf4 Kd5 Qf6 Bd3 Qf4 Bg6 Qf5 Be8 Qf6 Rd1 g1Q Rd4 Qgc1 Rdg4 Qhe1 Rg1 Qcb2 Qd1 Qec3 Qf1 Qcc1 Qg2 Qg6 Qh1 Qf7+ Ke4 Nf4 Bc3 Bh3 Rd4 Qb7 Bb4 Bc8 Rd7 Nh3 Rd4 Qff4+ Kd5 Bd7 Rde4 Qf5 Rd4 Qf7+
1r2B2b/3Rn3/1KNb2R1/1B6/1RNp4/P2BQnRN/qr1Bpn2/1R1r1b1k w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Ke3 Kf6 Kd4 g5 c4 d5 h4 b5 f4 b3 a3 b2 c6 g4 Kc5 d4 c7 e5+ Kb6 b4 c5 b3 h6 e4 c6 g3 h7 e3 h5 g2 h6 Be7 Bb5 e2 Rh3 Ba6 Bd2 Bc8 Qc1 Bf8 Rg3 Na6 Nh3 Kf7 f6 Ke6 f5+ Kd5 f7 Ke4 f6 Bb4 f8N g1B f7 Qe8 Ng6 Qe6 f8R Bh2 Ne7 Bd6 Rf6 Nc5 Rfg6 Nd3 Qc3 Bb7 c8B Rb8 c7 Nf2 Nc6 Ne7 Bd7 Qc4 c8B Re8 Rg2 Bhe5 R2g3 Bh8 Qc1 Rf8 Be8 Rf3 Qc3 Qg8 Be6 Rd3 Bec4 Qe6 Be3 Rd1 Nd2+ Kf5 Bf4 b1R Qe3 Rb2 Rb1 Qd5 Ba6 Qf7 Bcb5 Qe6 Nc4 Qg8 Qc1 Ke4 Bd2 Qe6 R3g5 Kf3 Rd5 Bg3 Rd7 Kg2 Qc3 Kh1 Qe3 Bd6 Rg3 Bhe5 h8R Qg8 Rh7 Bh8 Rhg7 Qf7 h7 Qe6 Nb4 Qf7 R7g6 Bg2+ Rb7 Bf1 Nc6 Bhe5 h8R Bg7 Rh7 Bh8 N4a5 Qd5 Bd3 Qc4 Bb5 Qc2 Rc1 Qb1 Nc4 Qa2 Rhg7 Re1 Ba4 Rc2 Ka5 b2 Nb6 Nf5 Rgd7 Rd1 Kb5 Nh4 Ka6 b1N Nc4 Nc3 Rb4 Nd5 Bb5 Ne7 Rcb1 Rb2 Ka7 Nf3 Ka6 Rc8 Kb6 Rb8+
3n1NB1/rN1Q2B1/k4q2/3bp1N1/1bKRn1Nn/1Rpr1P2/3N1rQ1/NQ4b1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 g4 c5 b4 Kc7 d6+ Kb6 f3 e5 d7 h5 f6 h3 f7 a4 g5 h4 g6 a3 g7 a2 Qc2 h2 Nh3 Nc6 Kc4 Ra7 d4 Rh5 d5 Qg5 d8N Be7 f8N Bg4 d6 Ra4 d7 Nd4 Nb7 Nf6 g8N Nh7 Nh6 Nf5 Nd2 Qf6 Ng5 h3 Rb1 a1B Rb3 Bd4 d8Q+ Ka7 b6+ Ka6 Ba3 Nh4 Qd7 Bg1 Bc1 Bf5 Ng4 Be4 Bd3 Bc6 Qb1 Bf2 Rd1 h1R Be4 h2 Bd5 Rh6 Bg8 Rf1 Nde4 h1N Rb2 Qg7 Na5 Nf6 b7 Ng3 b8Q Bb5+ Kb3 Ra1 Nge6 Rg6 Bh6 Ngf5 N6g5 c4+ Kc3 Ba7 Nb3 Bg1 Qbc7 Ra2 Na1 Nd6 Rb3 Nf7 Qcd6+ Bc6 b5+ Kb6 Qd2 Ra7 Qg2 Ka5 b6 Ka6 b7 Rf2 Rd5 Bc5 Nd2 Nd8 Rd3 Qf7 Bg7 Be7 Rd6 Qe6 Kb4 c3 Kc5 Qf5 Kc4 Ne4 Rd3 Bb4 Rd6 Kb6 b8N Rf6 Rd3 Rd6 Na6 Qf6 Nc5 Ka5 Rd5 Kb6 Nb7 Ka6 Rb5 Rd3 Rd5 Re3 Rd6 Rd3 Rd4 Bd5+
1k1r1B1r/nB4r1/BpRKp2R/bQ1NNbN1/5n2/Nq1RB3/P5b1/1N3n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 h5 f4 c4 d4 b3 g4 b6 g6 b2 g5 h4 d6+ Kb7 d7 h3 d5 c3 d6 h2 g7 c2 f6 Ra3 g6 Rc3 f7 Qc7 d8R Bh3 f5 Rh7 f6 Qd7 Ne2 Rc4 Nd4 Rb4 Ba6+ Ka7 Qd3 Bf5 Nb5+ Ka8 Be3 c1R N5a3 Qc6 d7 Ra4 Qb5 Rah4 Rc8 Rg4 d8N Rd1 Ne6 Qf3 Rc6 Rd8 Ng5 Rh8 Rd1 h1B Rd3 Bg2 Bb7+ Ka7 Ba6 Nh6 g8B e6 g7 Qh3 Bh7 Bb4 f8B Ng8 f7 Nf6 g8N Ba5 Ne7 Nh5 Nd5 Nf4 Bg6 Qf3 Bb7 Rg3 Bh5 Qd1 Be2 Qb3 Bf1 Nd7+ Kd6 Kb8 Be7 Rg4 f8N Rg3 Ng6 Rg4 Nbc3 b1N Bf8 Nd2 Ne5 Rg3 Be2 Rg4 Rh1 Nf1 Rh6 Rg3 Nh7 Rg7 Ncb1 Rc8 Ng4 Ne5 Ng5 Re8 Rc2 Nc6 Ne5 Na7 Rc6 Rc8 Bh5 Rgh7 Be8 Rhc7 Bd7 Re8 Bdc8 Rch7 Ba6 Rg7 Bcb7 Rd8+
1b3Nrb/R1r1p1NB/n3b2B/5n1Q/3k4/P4p1N/RNnq2rK/NB1R2R1 w - - 0 1 illegal: No possible last move, all moves rejected
KR1q1n1r/p2B4/1b1R4/k2pR1RR/nN1QB2N/3bb1R1/P1r1r2N/1n4Q1 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Na6 g5 Nb8 g6 Qa5+ Bd2 Qd8 Bg5 hxg5 Kf2 f5 Ke3 d5 Kd4 Kd7 e4 Kc7 h4 b5 c4 g4 e6 f4 e7 g3 e8R f3 c6 Kb6 h5 g2 c5+ Ka6 h6 f2 c7 Qg5 h7 Be7 c6 Nf6 g8Q Ba3 e5 Qf5 g7 Ka5 e6 b4 Kc5 Qh5 e7 Bd7 c8B Qe5 c7 Qb2 Rd8 Qb3 e8R Bb2 Bd3 f1R Nf3 Bc3 Re5 Bd2 Na3 Bb5 Rd6 Bc1 Rhh5 Rf2 Nc2 Re2 Be4 Be3+ Qd4 Bd3 Nh2 Nbd7+ Kc6 Nf8 Kb7 N6d7 Rg1 Nb6 Bd7 Na4 c8R Qb1 Rd8 b3 Rc8 Qf1 Nb4 b2 Rd8 Rc8 Rde8 Rc3 Rb8 b1N Ka8 Ng6 Qf8 Qf2 g8R Qf6 Qg7 Nf8 Qg3 Qd8 Rg4 Ng6 Rgg5 Rf8 h8N Rcc2 Qf2 Rg8 Qg3 Nf8 Ng6 Rh8 Nh4 Rb2 Rf1 Rbd2 Rf3 Rc2 Qf2 Rc8 Rfg3 Rcc2 Qb2 Bb6 Qbd4 g1B Qe1 Bf2 Qg1 Be3
R4QR1/r3nNB1/N5r1/1nq1K3/b2NpNr1/1Nq1k2b/2P1p2B/1BNQ2b1 w - - 0 1 legal: proof: e4 c5 d4 g5 dxc5 a5 b4 f5 bxa5 fxe4 h4 Bh6 hxg5 Bf8 Kd2 Kf7 Ke3 Ke6 Kd4 Kf5 g4+ Ke6 f4 d5 a4 b5 a6 h5 a7 b4 c6 b3 g6 e3 c7 h4 a5 e2 g5 Kf5 g7 h3 g6 e6 a6 b2 Nd2 b1B Nb3 Kg4 f5 h2 f6 Ba2 f7 Qh4 Bf4 Qf2+ Ke5 Be7 f8B Bd7 c8N d4 Nd6 d3 Nf7 Nf6 g8N Ba4 g7 Bc5 Ne7 Ne4 g8N Rh6 Nf5 Nd6 Nfd4 Rg6 Bg7 Nb5 Ne7 Qe1 Bg3 Qc3 Nd5 Bb6 Nf4 Nc6+ Ke4 Ne7 Ke5 Rg8 a8Q Bc5 a7 Bb6 Ke4 e5 Qf8 Bc5 a8N Ba7 Nc1 Be6 Ngf3 d2 Nc7 Bd7 Ndb3 Bg1 Bg2 Qc5 Na6 Bc8 Qf1 d1Q Nfd4 Qd2 Qd1 Qdc3 Ra2 Be3 Rg1 h1R Ra1 Rh7 Bh1 Be6 Rg2 Bg1 Bh2+ Kh4 Rg3 Bh3 Bf3 Rgh8 Bg4 Rg8 Be6 Rg4 Bh8 R8g6 Bg7 Nd5 Kf5 e4 Ke5 Ne7+ Bd5 Q5b4 Nbc5 Qa5 Ba2 Qb6 N5b3 Qba5 Nd8 Kg5 Bb1 Qab4 Ra3 Qbc4 Ra1 Qc5+ Nd5 Rc6 Nb4 Rhh6 Ba2 Ra6 Bb1 Rhf6 Rg2 Rg3 Bh8 Kg4 Nf7 Rh6 Nd2 Bb3 Ra5 Ba4 Ndb3 Rhc6 Bf6 Rc7 Bh8 Rac6 Ra8 Ra7 Na6 Rb6 Rf2 Rc6 Rf6 Rd6 Rh6 Rg6 Bg7 Qd2 Rh8 Qdb4 Nf5 Kf3 Rg8 Qbc3+ Nfd4+ Kf2 Qb8 R3g4 Qf8 Qb6 Nf4 Ke3 Ng5 Qbc6 Nf7 Q6c5+
4Qb1r/rN2KQQ1/Q3N2R/B3nqQ1/rp1pN3/Q2PB2b/q7/qk2nR2 w - - 0 1 illegal: No possible last move
6rq/q1b5/2bnN1KB/1Nbn1B2/pp1N2Q1/R4Rr1/q1PRR3/1k1NB1R1 w - - 0 1 illegal: No proof kernel
1nnQ1N2/r1bQR1Q1/2Bb2NB/1qQ1RPq1/1Q1n4/2K3p1/r4kp1/1N1b3Q w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 Kf6 b4 c5 d4 a5 Kd2 e5 d6 g5 h5 a4 d7 g3 d5 e4 d6 a3 h6 g2 h7 g4 b6 g3 b5 a2 b7 e3+ Kc3 e2 b6 e1N Nh3 Ra4 Bb5 c4 Bc6 Qe8 d8Q+ Qe7 d7 Nc2 Re1 Ra7 Re5 Nd4 Qc7 Qd8 Qh1 Qe8 d8Q+ Ne7 Qdd7 Rg8 h8Q+ Rg7 Kb4 c3 Qh5 c2 Kc3 Ra5 Qh7 Qh5 Qg8 Qe2 Qc4 Ra7 Qc5 Qb5 Bd2 Ng8 Bc1 Bd6 Qcd8+ Ne7 Qh8 Kf7 f6 Kg6 f7 Bc7 Be3 c1B Qg8 Ba3 f8N+ Kh6 Bc1 Rg5 Qg7+ Kh5 Qcd5 Bad6 Qc5 Kh4 Be3 Rg6 f5 Kg4 Bg5 Re6 Nf4 Rg6 Re4 Kf3 Bh6 Kf2 Re5 Rf6 N4g6 Rf7 Qd8 Be6 Qc8 Bd5 Qd7 Nc8 Re7 Bf3 Re5 Na6 b8Q Bd1 b7 Rf6 Re7 Re6 Qa8 Re2 b8Q Rb2 Qbb6 Nb8 Qa5 Rd2 Qab4 Re2 Na3 Rd2 Rc1 Rb2 Nb1 a1Q Re5 Qaa4 Re7 Ra2 Re5 Bh5 Rce1 Qd1 Re7 Qg4 R1e3 Qg5 R3e5 Na6 Qb8 Bd1 Qa8 Nb6 Qae8 Nb8 Qed8 Nc8
1Q4nq/1bbBn3/QN4r1/1bB1P1Bk/B3BB2/R4qp1/2RQpN1r/K1q5 w - - 0 1 illegal: No possible last move, all moves rejected
1Qrb3q/Q1nQr3/2bq4/N2PRQ2/pnpQ4/1q1nK1NQ/7R/1BkN2B1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 g4 Kd6 d4 e5 b4 a5 f4 c5 f6 h5 f7 h3 g5 a4 g6 c4 b6 e4 g7 e3 b5 h2 b7 h4 f5 h3 f6 Qa5 b6 Ra7 Nc3 Ne7 g8Q Nbc6 b8Q+ Rc7 b7 Rh5 Qg2 Ng6 Qa7 Nb4 b8Q Be7 f8Q Qb5 f7 Rh7 Qg7 Bd8 f8Q+ Ne7 Qf5 Bb7 Kf3 e2 Ke3 e1Q+ Nge2 Bc6 Q7g4 Qh4 Ng3 Qf6 Bd3 Qg6 Re1 h1N Bb1 h2 Ra2 Nf2 Q2h3 h1Q Rd2 Nfd3 Rh2 Qf6 Qd2 Qh8 Nd1 Qc5 Ree2 Qe1 Qb2 Qc3 Bd2 Qc2 Be1 Qb6 Bf2 Qb3 Bg1 Rg7 Qbb7 Rc8 Qbb8+ Qc7 Qd2 Ng6 Qge4 Nf8 Qeh4 Ne6 Qhf6 Kd7 d6 Re7 Qg7 Ba8 Re1 Kc6 d7 Qd6 Qb2 Bb7 d5+ Kb5 Qbd4 Nc7+ Qge5 Na2 Qee6 Kb4 Ree2 Ka3 Re1 Rg7 Qe8 Bc6 Qef7 Be7 d8N Nab4 Nb7 Bd8 Q7d7 Rh7 Na5 Re7+ Kd2 Qhf6 Re5 Qh8 Nc3 Kb2 Ke3+ Kc1 Nd1 Qg8 Re4 Qf8 Re5 Qh8
q1nK2n1/B1Qbb3/r2B4/2Qp2PQ/Q2Rn1N1/5Q2/pk2N1qr/1B1bRQ2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 a5 Kc4 e5 Kd5 h5 b4 d3 g4 h4 f4 h3 c4 h2 f6 d6 c5 a4 c6 a3 g6+ Ke8 f7+ Ke7 g7 Kf6 g5+ Kf5 c7 a2 b6 d2 b7 e4 b5 e3 b6 e2 Qa4 e1N Nf3 d1Q+ Bd3+ Kg4 f5+ Kg3 f6 Kf2 Bf4 Nd7 Ke6 d5 b8B Ra6 Ba7 Ne7 g8Q Rh6 Qh8 Rg6 Bd6 Ke3 b7+ Rb6 b8Q Rh6 Nc3 Qd2 Bb1 Nd3 Rd1 h1B Ne2 Ng8 Ne5 Rh2 Qh5 Bf3 Re1 Qb2 Ng4+ Kd2 Qb7 Nf2 Qbc6 Be7 f8Q Ne4 f7 Ra6 Qc5 Qc2 Nd4 Bd1 Ne2 Bb7 c8Q Nb6 Q8c6 Qa8 Qc7 Nc8 Kd7 Kd3 Qfh6 Bf8 Kd8 Bc6 Qf6 Bd7 Qf1 Bh6 f8Q Bg7 Q8f7 Bf8 Q7f3+ Kd2 Nf4 Kc1 Ne2+ Kb2 Nc3 Qg2 Ne2 Bb3 Rd1 Bc2 Rd4 Bb3 Bd3 Bc2 Re1 Bd1 Bb1 Be7+
q1r1Q3/2RB4/1k2bB2/qpn1Q1b1/1PRb1BNB/1pKB2R1/r3q1n1/2BN4 w - - 0 1 legal: proof: e4 a5 b4 h5 c4 f5 exf5 d5 cxd5 h4 Qb3 h3 gxh3 a4 h4 axb3 h5 Ra4 Bd3 Ra5 Bf1 Ra8 a4 Kd7 f4 c5 h4 Kc7 d4 b5 Kd2 g5 h6 e5 f6 e4 h5 e3+ Kc3 c4 a5 g4 h7 e2 f7 g3 a6 g2 a7 Nc6 h6 Kb7 f5 Ne5 d6 Qh4 d7 Ne7 d8R Be6 d5 Nf3 d6 Qg5 d7 Ne1 f6 Nc8 Rh4 Qh5 Nh3 g1Q Nf2 Qg2 Ng4 Bg7 f8B Qf2 Bd6 Nf3 Rg8 Qe8 d8B Qg1 Bdf4 Ne5 f7 Nd6 f8Q Nf3+ Qf6 Ne1 Qe5 Qf8 Ra6 Bf6 Rc6 Ng2 Rc7+ Kb6 Be7 Rc8 a8B Nb7 Rg6 Rg8 h8Q Nc5 h7 Rg7 Bc6 e1Q+ Bcd2 Qh2 Bd7 Qe2 Bc1 Qh1 Rg5 Qd8 Qe8 Rg6 h8B Bg7 Kd4 c3 Bf6 c2 Nc3 Rh6 Nd1 Rh5 Kc3 Rh6 Bb2 c1B Ba3 Be3 Bc1 Rh5 Be7 Bh6 Rg6 Bg5 Bhf6 Rh8 Rg8 Ra8 Rg6 Ra2 Rg8 Qf2 Bd3 Qe2 Rh3 Qa8 Rg3 Qa5 Rf8 Ne1 Rf7 Qha8 Rc8 Ng2 Rg7 Nb7 Rc4 Nc5 Rf7 Bh6 Bh4 Bg5 Bf6 Bf2 Bc6 Rg8 Rc7 Rf8 Bd7 Be3 Qf7 Rc8 Qe8 Bd4+
B1q2K2/2nBn2B/5bqk/p5N1/r1R2b2/P3p1q1/QR1rBR2/B2rRN1N w - - 0 1 legal: proof: e4 g5 b4 c5 bxc5 d5 h4 dxe4 hxg5 Na6 g4 Qd5 g6 Nb8 g5 Bh3 f3 Bg4 fxg4 Qd8 Kf2 f5 Kg3 b5 Kh4 e5 Kh5 a5 d4 f4 c4 b4 c6 b3 c5 b2 a3 e3 d5 e4 d6 f3 d7+ Ke7 g7 Kf7 c7 e2 c8R e1B c6 f2 g6+ Kf6 g5+ Kf5 c7 h6 Qb3 e3 Ne2 Nc6 Ng3+ Kf4 Ra2 Qe8 d8N Qd7 Be2 f1R Nf7 Na7 Nd2 b1Q Rb2 Rb8 Qa2 Rg1 Ndf1 Ne7 g8R Bg7 Rgf8 Bf6 g7 Rb4 g8B Nb5 g6 Ra4 g7 Qc2 Ng5 Qg6+ Kh4 h5 Bh7 Bb4 g8B Bd6 Bd5 Be5 Rf7 Rd8 Ba8 Rg2 Bd2 Qe6 Bc3 Rd1 Rg1 Qc6 Nh1 Qd7 Rd8 Qc8 Rd4+ Kf5 Rc4 Bf4 Bef3 Rgd2 Be2 Qd7 c8B Nc7 Rb7 Qe6 Ba1 Qd7 Rb2 Qe6 Bcb7 Qd7 Bc6 Qc8 Kh3 h4 Bd7+ Ke5 Kg4 h3 Rf8 h2 Kh4 Qe4 Kh5 Qg2 Kh6 Qg3 Nf2 h1Q+ Bh3 Qd5 Nh1 Qd6 Bd7 Nf5+ Kg6 Ne7+ Kf7 Qd3 Rd8 Qg6+ Kf8 Qa6 Rg2 Qe6 Rf2 Kf5 Nf3 Kg4 Ng5+ Kh4 Rdb8 Qeg4 Rb1 Kh5 R8b2 Kh6 Rbc1 Rd3 Rcb1 R1d2 Re1 Rd1 Nf3 R3d2 Ng5 Qe6 Rb1 Qa6 Rb2 Qc8+
3n4/1B1qRRb1/1b2p2Q/1bP1KqBN/N2Q3r/1n4N1/1NrpR3/1Nk1n2N w - - 0 1 illegal: No possible last move
Bb6/BQ2R1N1/b1n1pRr1/p1K5/qR2r1N1/R2N1B2/1R1n1P2/B2q1bkq w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 d4+ Ke4 g4 a5 b4 c5 f6 h5 f7 h3 b6 h2 d6 h4 d5 h3 d7 Na6 b5 Rh6 g5 Nc7 g6 Rh7 b7 Rh6 b8R Bg7 f8R Bb7 d6 Rh4 b6 Nf6 Ra3 Nb5 Qb3 Nd4 Be2 Nc2 Nc3+ Ke5+ Ne4 Nh7 Bf3 Ng5 Bb2+ Nd4 Rf6 Ra6 Ne2 Qe8 Re1 h1Q d8N h2 Ne6 Qa4+ Qb4 Rf4 d7 Bf8 d8B Bh6 Nd6 Ne4 g7 Rh4 g8B Bf4 Ng7 Nd2+ Kd3 Bg3 Nde8 Re4 Nc1 c4+ Kc3 Nc6 Ba1 Bc8 b7 Bh3 Bh7 Bf1 Bb6 Bf4 Qb3 Bg3 Bf5 Kf4 Ba7 Rb6 Rd6 Ra6 Nf6 Rb6 Ng4 Ra6 Kc2 c3 Rf6 Rb6 Re2 Ra6 Kd3 c2 Re8 Rb6 b8R Ra6 Na2 c1Q Qb7 Qcd1 Nb4 e6 Bb6 Ra8 Re7 Ra7 Qa8 Rc7 Ba7 Rc8 Qb7 Rg8 Ne8 Rg6 Ng7 Kg5 Kc3 Kh4 Nd3 Kh3 Rd7 Nc4 Rb2 Nd2 Re7 Bd6 Qa8 Bf4 R8b4 Bc7 Qb7 Bb8 Be2 Kg2 Bf3+ Kg1 Nde5 Rf4 B5e4 Ba6 Bd5 Re4 Nd3 Qg2 Rc7 h1B Re7 Re2 Bde4 Qh2 Bd5 Bg2 Bde4 Qh1 Bd5 Ne5 Kd4 Nc6+ Kc5 Re4 Qc7 Ne5 Ba8 Nc6 Qb7 Bf1
1n2b3/4Q1Bn/2NPpKRR/b1qNr1R1/4BNN1/r5BB/pkN5/3bq1q1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 g4 c5 f4 h5 d6 h3 g5 a4 g6 h4 d5 e6 g7 h2 f6 h3 b6 c4 f7 a3 d7 a2 f5 c3 f6 c2 b7 Kb3 Bh6 Qa5 d8N Qc5 Nc3 Be7 f8R Qc4 f7 Bg5 Nc6 Ne7 g8B Ra3 Nf3 Bd2 Ncd4+ Kb4 Bg7 c1Q Nc2+ Kb3 Bh7 Qa6 Rg8 Ra5 f8N Bh6 Be4 Qa8 Kf6 Qa7 Ng6 Rb5 Nfe5 Qd4 Nf4 Qg1 Ng4 Ng6 Qd4 Ra5 Qc5 Bd7 Qe7 Nf8 Rb1 Qc5 Bfg2 Qd2 Rbg1 Qe1 Bf1 Be8 Bfg2 Nc6 b8B Ra3 Be5 Rh7 d6 Nb8 Ncd5 Rh8 Nh5 Bd2 Bg3 Rh7 Nhf4 Rh5 Bf1 Re5 Rg2 Ka4 b4 Kb3 b5 Kb2 b6 Bc3 b7 Ba5 Rhg1 h1B Rh2 Bf3 Rhh1 h2 Bh3 Na6 b8N Bd1 Nc6 Nb8 Rh8 Ra4 Rh5 Ra3 Rg2 Qeg1 Rh6 Qe1 Rhg1 h1Q Bh2 Bd7 Nge3 Qf2 Rgg6 Be8 R1g5 Qfe1 Bg3 Qhg1 Ng4 Nh7+
K2q1r2/Q2Q1q2/B1rp4/1r1BB3/2pP2Qb/k1q1RN2/N2b2B1/2nRB1nB w - - 0 1 illegal: No possible last move, all moves rejected
3R1RbK/B6R/nB1p4/1pbB3R/r5qr/N1N3N1/nP3Q2/k1qRbnN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Qb6 a5 Nf6 axb6 Ng8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 f4 a5 c4 g5 h4 d3 c5 d6 c6 d2 b7 g4 c7 g3 h6 g2 h7 a4 h5 a3 h6 a2 Qe1 d1N Na3 Ne7 Qf2 Nd5 Be3 Ne7 Rh5 Ng8 Bb6 Ne7 Bc4 Rg8 h8R Nd5 h7 N5e3 Bd5 Be6 c8N Nf1 Ne7 Na6 b8B Rg4 B8a7 Bh6 Rd8 Bg8 h8R Rh4 Rh7 Bg5 Rc1 a1Q Rb1 Nde3 Rd1 Qc1 Nc6 Bh6 Nd4 Nc2 Nde2 Ncb4 Nc3 Bg7 Bb7 Kf7 f6 Ke6 f7 Na2 f8R Bh6 Nge2 g1Q Ng3 Bg7 Bc6 Ke7 Kf5 e4 Kg6 Ke6 Bb7 e3 f5+ Ke5 Bg2 e2 f6+ Ke6 f7 e1B Bc6 Bd4 Bh1 Be3 Kg7 Bc5 Kh8 Qg2 Rb8 Qh3 Rfd8 Qf5 f8N+ Ke5 Bf3 Kf4 Nd7 Qg4 Qc2 Ke3 Bd5 Bd2 Qf5 Kd4 Qf2+ Kd3 Nab1 Kc2 Ne5 Qg6 Nf3 Qg4 Bb7 Kb3 Na3 Be1 Ng1 N2b4 Nd5 Ka2 Nc3+ Ka1 Rf8 Na2 Rbd8 Rc8 Bd5 Rc7 Nf5 Re7 Ng3 Re4 Rhd7 Rb4 Rdh7 Ra4
k4b1r/3Kn1R1/1BpB2np/1BP5/4nRQ1/NR1R2r1/q3q3/RQ1RbqN1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 Kd2 a5 Kc3 d5 Kd4 Kd7 b4 Kc8 c4 Kb7 f4 c6 e4 a4 f5 a3 f6 a2 f7 h6 b6 Qc8 e6 Ne7 Kc5 d4 Kd6 d3 b5 d2 e5 Ra4 g5 Nd5+ e7 Qf5 g6 Nb4 e6 Ka8 b7+ Ka7 b6+ Ka6 g7 Qf3 g8R Qe2 Na3 Qg4 Rg7 Qh5 Qg4 d1N Be3 Nd7 b8Q Ne5 b7 Nf2 Bb6 Ng6 Kd7 Ne4 e8R Nd5 Rd8 Nde7 c5+ Rc4 Rd1 a1Q Rh4 Qa2 Be2 Ng8 e7 Qe5 e8R N8e7 Bf1 Qeb2 Rh3 Qe2 Rh1 Rc3 Ra1 Nd5 Re5 Rf3 Rf5 Nde7 Rf4 Rc3 Kc7 Rf3 Rd3 Re3 Kd7 Rf3 Nh3 g1B Rad1 Bf2 Ng1 g2 Ra1 Rg3 Rad1 Nc8 Ra1 Bd6 f8B Be1 Be7 Bc7 Bd6 Nce7 Qg8 Bd8 b8R Bc7 Qb3 Bd8 Ra8+ Kb7 Qb1 Bc7 Ra5 Bb8 Rb5 Ka8 Nh3 g1Q Rbb3 Qeg2 Be2 Q1f1 Ng1 Bc7 Re3 Bd8 Bb5 Qge2 Red3 Nd5 Rh3 Be7 Rd1 Bf8 Rbd3 Nde7 Rb3 Rg2 Rhd3 Rg3
n2kB2b/7R/PN2q3/2BB1Bq1/1qBR2bp/p1QKb1r1/7N/Q1BNn1r1 w - - 0 1 illegal: No proof kernel
1Bq4k/q2r1B2/prn4K/2N1RrNB/1NRR4/Rbp1n1b1/2B3P1/q1RQ4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 Kf3 h5 e4 f5 d4 Kf7 b4 Kg7 b6 c4 b7 h4 e5 a6 d6 c3 d5 h3 d7 h2 b5 Qe8 d8N Be7 g6 Rh4 e6 Bd6 e7 Kh8 b6 Qa4 e8B Ba3 g7+ Kh7 d6 Nd7 b8R Nh6 g8B+ Kh8 b7 Qd4 Bd3 Bc5 Nh3 Ra7 Ne6 Ng4 Bgf7 Rh6 Bc2 Ne3 Nhg5 Qc4 Rg1 h1Q Ra3 Bd4 Nc5 Be5 Ra8 Nb8 d7 Nc6 d8R Be6 b8R Rd7 Rb4 Qh2 Rh1 Qg1 Bh5 Bg8 Bef7 Qe6 Rc4 Bd6 Ke2 f3+ Kd3 f4 Rab8 f2 Rb5 Ne5+ Ke4 f3 Kf4 f1Q Bd2 Bc7 Be1 Qh3 Bg3 f2 Rba5 Rb6 Bh2 Re7 Rdd4 Qc8 Rb5 Rd7 Rba5 Nd5+ Kf5 Nc6 Kg6 Be5 Kh6 Bg3 Rb5 Ne3 Rba5 Bh4 Bb8 Bg3 Qd2 Qd3 Be8 Qgf1 Bb3 Bh7 Ra2 Rb4 Nb7 Qd1 Re5 f1R Na3 Rb6 Nc2 Qa1 Nc5 Qe4 Ra3 Na5+ Beg6 Qa8 Ba4 Qa7 Nb4 Rff7 Rc1 Nc6 Qd1 Rf1 Bf7 Bc2 Bb3 Rf5 Ba4 Bb1 Bb3 Ba2 Bc2 Bb3
1kq5/1qR1r1qp/2p2rQ1/5b1R/r1RR1NR1/3Qb2B/PBR1Kn2/N2Q3n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 f4 b5 g4 e5 g6 e4 g7 c6 g5 Kc7 g6 e3 d6+ Kb7 f6 e2 f5 b3 d5 b2 d7 b4 f7 b3 d6 Ra7 f6 Ra3 Nh3 Qe8 d8Q Ka8 d7 Ra7 Na3 b1Q Bb2 Qf5 Nf4 Qg4 Bh3 Ra4 Nc2 Nh6 g8R Bc5 f8R Nf5 g7 Be3 f7 Na6 Rc1 Nb4 Na1 Kb8 Rc4 Ng3 Qd3 Qe7 Re8 Qge6 f8R Q7f7 Rh2 Nh1 Re7 Qfg6 Rf5 Qh6 Bc1 b2 Rh5 b1Q Rg2 Qb3 Bb2 Qhg6 Rg4 Qgf7 Rge8 Rf8 g8Q Qg7 Qf7 Qf5 Qg6 Rf6 Rc2 Qfe6 Rf7 Qf5 Re4 Qfe6 Rec4 Qf5 Qh8 Qe6 d8R Qe8 Rdd5 Bf5 Rc7 Qc8 Ba3 Qb2 Rdd4 Qb3 Qd8 Qb2 R4c3 Qb3 Bb2 Qbf7 Ra7 Qb7 Rcc4 Qbe7 Qd1 Bf2+ Kd2 e1R Qa5 Nd3 Qc3 Qb4 Rf7 Qbb7 Rc7 Re7 Qb3 Be3+ Ke2 Ndf2 Qc3 Qh6 Qcd3 Qg7
b1NNq3/KBB1BnPB/Q1r5/n2rBq2/Npq2R2/Rb2N1b1/2p1k3/1R6 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 e5 d4 h5 f4 b5 a4 c5 g4 h4 d6 h3 d5 e4 d7 c4 Kd4 b3 d6 e3 Kc5 h2 g6+ Kf6 g5+ Kg7 a5 b2 a6 e2 a7 e1Q Qe2 b4 Ra3 c3 Nd2 b1Q Bg2 c2 Qa6 Qb3 Bb7 Qde8 Kb6 Qbf7 d8B Nf6 d7 Qg3 Nf1 Qg2 Ne3 Qg3 Bc7 Qb3 d8N Rh3 Ne2 Ng8 Nc3 Qd5 Na4 Bd6 Bb2+ Qde5 Rd1 h1B Rb1 Nc6 Bc3 Rb8 a8N Na5 Ka7 Rh6 N8b6 Be6 Nc8 Qg4 Bd4 Bb3 f6+ Kh8 g7+ Kh7 f7 Kg6 f8B Kh5 g6 Qef5 Be5 Bf3 Be4 Rb5 Bb7 Rd5 Be7 Bg2 Rg1 Qe2 Rd1 Qc4 Rb1 Nf6 g8B Ne4 g7 Ng5 Bh7 Nf7 Nd1 Kg4 Ne3+ Kf3 Bc6 Qf6 f5 Qg6 f6 Ke2 Ba8 Qf5 Bb7 Ng5 f7 Re6 f8R Nf7 Bc3 Bg3 B3e5 Rc6 Ne6 Nh8 Rf6 Nf7 Nd8 Qg6 Rff1 Qf5 Rf4 Rg6 Bb8 Rd2 Bd5 Be4 Bbc7 Rf6 Be6 Ba8 Bd5 Rd1 Bc6 Rd5 Bb7 Rc6
1rR1Rq2/6pn/B2N2qB/k2PRB1q/1NbN1K1r/1n2r2p/N5R1/1Q4bR w - - 0 1 illegal: No possible last move, all moves rejected
N3K3/RNr1B1pr/P3N1N1/2B2k1r/2R3R1/nBb1qb2/pQR1n3/1R2q1n1 w - - 0 1 illegal: No proof kernel
b3BQR1/1QB1pKq1/6N1/1p5N/Q4Q1B/rPqn3b/rkn1b2Q/1nR2Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 c4 gxh4 cxd5 f5 exf5 Bg7 a5 Bc3 Ra2 Bd4 Ra1 Bb6 axb6 Bd7 Na3 Be6 Nb1 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 a5 d4 c5 g4 h5 b3 h3 d6 a4 d5 h4 d7 c4 g5+ Kf7 Ke5 c3 f4 h2 g6+ Kg7 Ke6 a3 d6 a2 b7 h3 f6+ Kh6 f7 Kg7 f5 c2 Be2 Ra6 Nf3 Rb6 Bg5 c1Q Bh4 Qe8 f6+ Kh6 g7 Kg6 f8Q Na6 b8Q Nb4 f7 Ra6 Qf1 Qc3 Nbd2 Nf6 Ne4 Nfd5 Rc1 a1N Nf6 Ra2 Qb7 Nd3 Nh5 Nc2 g8Q+ Qg7 Bd1 Nc3 Be2 Rh6 Qh8 Nb1 Bd1 Qc3 Qd4 Qd8 Qa4 Ra3 Qh8 Qf8 Qf4 Qfg7 f8Q Rh7 Qa4 Rh6 Qff4 Rh7 Bg3 Rh6 Rg1 h1B Bh4+ Bg2 Qhf8 h2 Be2 h1B Ne5+ Kh7+ Ng6 Bf3 Bd1 Be2 Qh2 Bc6 Q8f4 Kg8 Qba6 Ba8 Qb7 Kh7 Rg4 Qgd4 Kf7 Qg7+ Ke8 Kg8 d8Q Rh7 Rg3 Bh3 d7 Rh8 Qdb8 Rh6 d8B Kh7 Nh8 Ra6 Bc7 Ra2 Ng6 Kg8 Qae4 R6a3 Qa4 Bf5 Kd8 Kf7 Rg1 Ke6 Ke8 Qge5 Kf8 Bh3 Kg8 Qf6 Qf8 Qfd4 Qbc8+ Kd5 Kf7 Kc6 Qb7+ Kc5 Qaa7+ Kb4 Rg3 Qc6 Qa4+ Kc3 Rg1 Kb2 Rg5 Beg4 Bf3 Qcc5 Bc6 Be2 Be8 Qcc3 Ne5 Qdc5 Rg8 Q5d4 Ng6 Qg7+
2q1BRBB/kb1Prn2/b1pQ3b/8/1B4pR/B3n3/R4NQN/rqn3BK w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 f5 h4 a5 e4 g5 d4 c6 b4 Kc7 d6+ Kb6 e5 a4 d5 g4 e6 a3 h6 a2 h7 Bg7 h5 Nh6 e7 Nf7 e8B Bc3 h6 Rf8 h8B Qc7 d7 Ka7 d8R Bg7 b6+ Kb7 d6 Qd7 b5 Ng5 h7 Bb2 Bd4 Ra6 h8B Rf7 Nf3 Re7 Qd2 Ra7 Rh4 Nf7 Nc3 Na6 Kh1 Nb4 Ne4 Nd3 Bg1 Bg7 Ba3 Bh6 Nf2 Nc1 Nh2 f3 Bc4 f4 Bb3 Kb8 b7 Ra4 Qe2 Ka7 Qf1 Qf5 Qg2 Qb1 d7 Ra6 Ne4+ f2 Bc4 f3 b8B+ Kb7 b6 f1N Nf2 Ne3 Bbd6 Ra5 Nh3 f2 Bdb4 f1B Nf2 Ka8 b7+ Ka7 Bd5 Ba6 Be6 Kb6 b8Q+ Bcb7 Qd6 Ka7 Bhc3 Qg6 Bh8 Qg8 Rb1 a1Q Rb2 Qf8 Ra2 Qb1 Rc8 Ne5 Bg8 Ra4 Bg6 Nf7 Bh5 Qd8 Rb8 Qc7 Rf8 Qc8 Bg6 Nd8 Be8 Nf7 Ne4 Ra5 Nf2 Qd8 Rd2 Na2 Bab2 Nc1 Rc2 Ra1 B2a3 Qc7 Ra2 Qc8
7q/2p2Q2/B3rn1B/r1bb2Pp/6BN/1q1Kb2B/1knRN1Bn/R4NRN w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 e4 Ke7 Ke2 Ke6 d4 f5 b4 a5 g4 h5 d5+ Ke7 g6 a4 b6 a3 g7 c3 b7 f4 e6 Kd6 b5 Ke5 e7 c2 e8B a2 d6 f3+ Kd3 f2 b6 Bf5 d7 Rh6 Nf3+ Kd6 Bg2 Kc5 Nbd2 Kb4 Nh4 f1N Rg1 Na6 b8N Ng3 b7 Ne7 g8B Re6 Qf1 Ka4 Nc6 Rh6 b8N Ne2 Ne5 Nc6 Bc4 Qc8 d8R Be6 Qf7 Bd5 Nf1 Nd4 Bd7 Re6 Bh6 Ka3 g5 c1B Ng4 Nc2 e5 N6d4 Nf2 Nf3 Nh1 Qb7 Nc6 Nh2 Nd4 Kb2 Ne2 Nb8 Ba6 Bc5 Bc8 Nd7 Bh3 Rf6 e6 B1e3 e7 Re6 e8B Nf6 Beb5 Qb6 Bab7 Ra5 B5a6 Re4 Bcg4 Re6 Rd1 a1Q Rd7 Bb3 Bbg2 Qb4 Rd4 Bd5 Rd2 Qb8 Ra4 Qd1 Ra3 Qh8 Ra1 Qb1 Nc3 Qa2 Ne2 Qb3+
1Rq2B2/B1p2NP1/R2RbN1p/n1RqR3/1QN1rk1K/1N1r2n1/1b2B2n/7q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 f4 Kf6 Kf2 a5 g4 e5 b4 e4 g5+ Kg7 f6+ Kg6 b6 Kf5 f7 h3 Kg3 a4 d6 h2 d7 e3 b7 e2 g6 e1N g7 a3 b5 h6 d5 a2 d6 Ra7 b6 Nc2 Na3 Qe7 d8N Qg5+ Qg4+ Ke4 f5+ Ke5 d7 Ne1 f6 Qd2 Nc4+ Kd5 Kh4 Qd3 Nf3 Ra4 Be3 Ra6 Nfd2 Ba3 f8B Ra4 f7 Ne7 Be2 Bb2 Nb3 Nbc6 b8R Na5 b7 Qd2 Rc1 a1Q Ra8 Ra3 b8R Nf5+ Kh3 Nf3 Ra6 Ng3 Rhe1 Qa2 Ba7 Rg8 Qf4 h1Q+ Kg4 Nh2+ Kh4 Qb1 Qd6+ Ke4 Qb4 Rh8 Bfc5 Ra2 f8N Qd5 Bd3+ Kf4 Ne3+ Qd4 Nh7 Ba3 Nf7 Rd8 Nf6 Re2 Bf8 Bb2 Rc5 Qc2 Bb5 Qf5 Bd3 Qe6 Nc4 Re3 Re2 Re8 d8R Qdd5 Rdd6 Bd7 Bf5 Rd3 Bg4 Bc8 Re3 Qd7 Be2 Re5 Rb7 Qe8 Rbb6 Be6 Rb8 Qc8 Nc1 Re4 Nb3 Red4 Re5 Re4
2n2r1k/npB3N1/3b1Qb1/3R2Kb/2P5/2pQ1r1N/N1nqNQNR/1B1q2N1 w - - 0 1 illegal: No proof kernel
2B2r2/Npn1k2K/B5qQ/rNnB1B2/p1Q2BB1/3r1nR1/1Pb3bR/Q5q1 w - - 0 1 illegal: No proof kernel
N1N1QN2/Bpqn1n1N/5p2/2P4k/B1qbQ2N/3b2qR/Q1rR1Nr1/1n3K2 w - - 0 1 illegal: No possible last move
nr1Qrr2/2NQ3B/6KR/bB2Bp2/r2b1Bp1/kq1r4/nR3QP1/NB4B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Bf5 h5 Bg6 hxg6 Qd7 Ra6 Qc8 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Kg4 Kc5 Kf5 Kb4 e4 c5 d4 h5 b6 a5 b7 f3 g7 g4 d6 f6 e5 f2 d5 h4 d7 h3 d6 c4 e6 h2 e7 c3 e8B a4 Nh3 c2 Qd2+ Kb3 Na3 Be7 Rb1 Rh5+ Ng5 Nc6 b8B Nb4 Kg6 Qb6 d8Q Rh8 d7 Bc5 Ba7 Bd4 Bb5 f1R Qf2 Na2 Bf4 c1B Ne6 Bd2 Nc2 a3 Nc7 Ba5 Na1+ Kb4 b3 Rb8 Rb2 Rh3 Qc8 Rd3 d8Q f5+ Bec6 Re1 Qcd7 Nf6 g8B Nd5 Bh7 Re8 Be5 Qb7 Bf4 Nb6 Be4 Na8 Be5 Rf3 Bb1 Rd3 Bb6 Nc1 Ba7 a2 Bf4 Ka3 b4 Qd5 Ba6 Rde3 b5 Rd3 b6 Qb3 b7 Rf8 Bb5 Re8 Re1 h1R Re6 Rf8 Rd6 Re1 Bb6 Rc8 b8B Ree8 B8a7 Rb8 Be5 Bdc3 Be3 Bd4 B3f4 Qa4 Nb3 a1R Bb6 Ra2 Na1 Qb3 Kh6 Bc5 Qf1 Kb4 Kg7 Ra3 Rh6 Na2 Kg6 Ra4 Qe2 Ka3 Ba7 Be7 Bg1 Bc5 Qf2 Bd4
1n4KQ/n1n3q1/4B3/1Rb1BpBP/1Nn1NRN1/B1RBN3/3n1p1r/3br2k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 g5 b4 c5 h4 f3 h6 f6 h5 c4 b6 g4 h7 f2 b7 a4 b5 g3 b6 g2 Rh3 a3 Rc3 a2 Ba3+ Kd7 Kf5 Ra7 Kg6 f5 Kf7 Qc7 e4 Qh2 e5 Bc5 d6 Kc6 d7 Kd5 d8N Ke4 d5 Ne7 e6 Nbc6 b8N Qh1 b7 Bd7 d6 Nd5 e7 Re8 h8B Nc7 Ne6 Ra4 Na6 Na7 Nf3 g1N b8R Ne2 Be5 Nd4 Rb5 Ndc6 Nb4 Qg2 Nh2 Nb8 Nd4 Bc6 d7 Qg5 Rc2 c3 d8B Bd7 Rc1 c2 Nd2+ Ke3 Rab1 a1N Ne4 Nb3 Bd3 Nd2 Qg4 Qh6 Qg7 Nc4 Qh8 Bc6 Rb3 Bd7 Rcb1 c1N Rc3 Nb3 Rg1 Bc6 Rg4 Nbd2 Rf4 Qg5 Ng3 Bf3 Ne4 Rg8 e8B Bd1 Bd7 Re8 Be6 Qg1 Bb2 Ra1 Bc1 Rg8 Ba3 Rg2 Bg5 Rc1 Nhf3 Rh2 Kg8 Qg4 Ndc6 Qg3 Ne7 Ra1 Bb1+ Ke2 Ned5 Kf1 Bd3+ Kg2 Ne3+ Kh1 Bd7 Rh3 Nh2 Rc1 Nhg4 Rh2 Be6 Qg2 Nh6 Bg4 Bd8 Re1 Bdf6 Qh3 Bh4 Bd1 Be7 Qh4 Bd8 Qe7 Nhg4 Qd7 Bg5 Qg7+
1RrB2N1/8/3r2Rn/r2P3B/2k1qQbB/r5n1/1b1RpKp1/1NBrBQB1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 h4 Kd6 f4 a5 d4 c5 b6 g5 b5 e5 f6 c4 f7 g3 b7 c3 f5 e4 f6 g4 b6 a4 h5 g2 h6 e3 h7 a3 Be2 c2 Rh2 a2 Nh3 g3 Nf2 Qe8 Bh5 Nh6 Ng4 Be7 f8Q Ra4 f7 Ra8 Nf6 Qb5 Ng8 Na6 b8R Qd3 b7 Nc5 Qg4 Qf5 Qf4+ Qe5 Qf1 g1R Rd2 g2 Ke2 Bg4+ Ke1 e2 Kf2 Kc7 d6+ Kc6 d7 Kb5 d8B Qe4 d5 Bf6 Qd6 Kc4 f8B Ra4 Qf4 Ra5 Bfe7 Bb2 Bh4 Ra3 Ne7 Re8 Ng8 Re6 h8B Rd6 Bd4 Ra5 Ra8 Rh1 b8B Rh3 Ba7 Rha3 Rb8 Rb6 Nc3 Rd6 Rb1 a1R Rb6 Rd7 Rg6 Rd6 Bab6 Ne6 Bdc5 Nd4 Bb4 Ndf5 Ba7 Ng3 Bd4 Ra8 Bba5 R1a2 Bc5 Rc8 Ba7 Ba1 Rb8 Bb2 Bb4 Ra5 Nb1 R2a4 Ke1 Ra2 Bg1 R2a3 Kf2 Ba1 Bb2 c1R B4c3 Rd1 Bc1 Bf5 Rc2 Bg4 Be1+ Bc3 Rd2 Bb2
1r1r3r/pR3NRn/1b1rB1B1/1N2QN1K/Bq2B3/p4P1k/1Q2B3/2B1nr1b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 Nc6 dxc5 Nb8 Ke2 Kf7 Kf3 d5 Kg4 e5 b4 d4 c4 e4 c6 a3 c7 d3 c5 d2 g6+ Kf6 b5 e3 g7 e2 c6 e1R b6 h6 b7 Bc5 f3 Bb4 Qe2 d1R Qb2+ Re5 Nc3 Qd5 Kh5 Ne7 g8B Ng6 g4 Re8 g5+ Ke5 f6 Kf5 f7 Nh4 f8N Qe4 g6 Ng2 g7 Qc4 Ng6 Be6 c8B Rh7 c7 Ba5 Nb5 Nd7 b8Q Rd6 Nh8 Rd8 Be2 Nf8 Rb1 Bb6 Nf7 Qb4 Bb7 Ne1 c8B Rh8 Bd7 Nh7 Qc7 Rab8 Rh2 Be3 Be4+ Kf4 Rg2 Bh3 Rg6 Bg2 Be6 Ng5 Bh7 Kg3 g8B Bb6 Rg7 Bh1 Bhg6 Nh7 Bb3 Kg2 Ba4 Kh2 Qe7 Kg3 Qee5+ Kg2 Kg4 h5+ Kh4 Nf6 Kg5 Nh7+ Kh6 h4 Kh5 h3 Ng5 h2 B2d3+ Nc2 Qbc3 Qb2 Nc7 Bd4 Ne2 Ne1 Be6 Qd2 Rb7 Bb6 Qb2 Qa5 Nf7 Qb4 Bec4 Kh3 Ng3 Bg2 Nf5 h1R Be6 Rf1 Nb5 Bh1 Bdc4 Qd2 Be2 Qb4
1N3B2/p4Q2/1k1PBnR1/R1Nn3r/3RN1N1/R3Rr2/nbpKb1n1/Bq5n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 b4 h5 d4 c5 f4 Kc7 g5 e5 b6+ Kb7 f6 h3 b5 h2 g6 c4 g7 e4 d6 e3 f5 c3 f7 e2 d7 h4 d5 h3 f6 c2 Ra3 Be7 f8R Na6 f7 Bb4+ Nd2 Nc5 Nf3 Qg5 d8R Ne7 g8R Bg4 Ne5 Na4 Rfe8 Be6 f8B Nc5 Ng4 Ne4 Bb2 Rh5 Ba1 Bc3 Rg6 Bb2 Qb1 Bd7 Qa2 Nf6 Ne4 Bc6 Rg1 h1N Rgg3 h2 Ra5 Nf2 Rga3 h1N Bh3 Qh4 Kd2 e1N Qb3 Nd1 Qf3 Nfg8 Qf7 Nc3 Rdd6 Na2 Rdd8 Rc8 Rdd6 Kb8 b7 Kc7 b8N Nf6 Nd7 Ng2 Ndc5 Qg3 Rdd8 Qb3 Rd6 Bb7 Rdd8 Ba6 b6+ Kb8 b7 Kc7 b8N Kb6 d6 Rc7 Rc8 Ned5 Re5 Be2 Rce8 Ndc3 Rd5 Rb7 Rd4 Ncd5 Nc3 Rc7 Re3 Re7 N3e4 Ree5 Nh6 Ref5 Bg4 Rf3 Be6 Nab4 Ng4 Qa2 Red3 Qb1 Re3 Na2
K1Br4/3n4/QN2QB2/r1b1Bn2/1Rn2qB1/3BnPB1/2R1p1kp/Rb1b1N2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 c4 e5 b4 h5 g4 a5 f6 Ke6 f7 a4 f3 a3 b6 h4 b5 h3 g6 a2 c5 h2 g7 Ne7 g8Q Bg7 f8B+ Kf6 c6 Qd6 c7 Ra7 g5+ Kf5 g6 Rh5 b7 Bh6 g7 Qd8 b6 Bd2 Qe2 Kf4 Bb2 Kg3 Nh3 Rh8 Nf4 Nf5 Bd6 Qe7 Qe6 Qg5 g8B Bb4 Nd2 Nd7 b8R Bc5 b7 Ra5 Bh7 Rg8 Bh3 Rd8 Rhc1 Qf6 Bg4 e4+ Kc2 d3+ Kb3 d4 Kc4 e3 Kd5 Qe5+ Kc6 Qe4+ Nd5+ Qf4 Qf1 e2 Be5 Be7 Qe1+ Kg2 Rc2 Bc5 Nf1 d2 Nb6 d1B Qc3 d3 Qcc4 d2 Qa6 Nd6 Bd3 Nc4 Rac1 a1N Rb1 Nb3 Ra1 Rh8 Bf6 Rd8 Bbe5 Nc1 Ra8 Nb3 b8B Rb5 Ra4 Ra5 Rb4 Nd4+ Kd5 Nf5 Kc6 Nf8 Ra7 Bd7+ Kb7 Ba4 c8B Nd7 Bbd6 Bb3 Ka8 Ba2 Rc7 Bb1 Ra2 Bdc2 Ra1 d1N Rc6 Nde3 Bc7 Qd4 Bg3 Bd1 Bce5 Qf4 Rc7 Bd6 Rc6 Nb2 Rcc4 Bc5 Rc2 Nbc4
1b4rR/k2n2R1/2bQRKbr/1q2BN2/rp4p1/RBB1NP2/2B4B/3N1nb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 g5 Ke4 e5 h4 b5 a4 c5 d4 Kc7 h6 Kb6 f3 b3 d6 b4 h7 b2 h5 g4 h6 c4 d5 c3 f6 c2 f7 Ra6 d7 Nf6+ Kf5 e4 d6 e3 a5+ Kb7 Ra3 e2 Nh3 e1B Nf4 Rb6 a6+ Ka7 Nc3 b1B Bb2 c1R+ Bd3 Nd5 Ng2 Ne7+ Kf6 Bc2 Ne3 Bd2 Re1 Rg8 h8B Bb1 h7 Nbc6 Bc2 Ka8 a7 Qc7 d8B Qb8 d7 Qg3 Bc7 Bb7 d8N Nf5 Ne6 Bc5 f8R+ Nb8 Rf7 Bc6 Nd4 Qh2 Be5 Ng3 Ndf5 Qe2 Rg7 Nf1 Bh2 Qb5 Re2 Be1 Qd6 Bg3 Ncd1 Bf4 Be5 Nd7+ Ke6 Ra6 Bb3 Kb7 a8B+ Ka7 Re1 Ra4 Bc2 Be4 Bd5 Bg3 Bdb3 Bc6 Nd5 Bb6 Re4 Bg1 Nd5e3 Bh4 Bc3 Bd8 Kf7 Bc7 Re6 Bb8 Rg5 Ba8 B8e5 Bd5 h8R Bc6 Be4 Rc2 Rg7 Rd2 Bec2 Rg2 Bhg3 Rh2 Ke7 Rh7 Bh2 Rh6 Bd3 Nb6 Nd4 Bc2 Bh7 Bg6 Kf6+ Bf7+ Bg6 Rh3 Bgc2 Nd7+ Ke7 Bg6 Ndf5 Bh7 Kf7 Rh5 Ke7 Rh6 Kf7 Bg6+ Ke7 Nf8 Kf6+ Nd7+
b4r2/1n1BQ1Q1/1NRq2BB/K2p3b/3r1b2/P2N1r2/3p1NrN/Nk1N1nR1 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Kd2 Kf7 f4 Kf6 c4 e5 h4 g5 a6 d5 c5 b5 c6 g4 a3 b4 h6 g3 a7 d3 c7 b3 Kc3 e4 h5 b2 h7 g2 h6 e3 Qe1 e2 Nf3 g1R Nh2 Rg3 Rg1 Ne7 Kb4 Qd6+ Ka5 Rg4 Nc3 b1B Nd1 Ba6 c8B Ba2 Bd7 Rhg8 h8Q+ Bg7 h7 Kf7 f6 Kg6 f7 Bb1 f8N+ Kf6 f5 Ke5 f6 Ke4 f7 Rg3 Ne6 Nf5 f8N Bb7 Bh6 d2 Ng5+ Kd3 Ne4 Kc2 Ne6 Be5 Nef2 Na6 Nc5 Rf3 Nb3 Rg2 Qg7 Ne3 h8N Nc5 Ng6 Bf4 Ne5 Rf8 a8N Bc6 Nb6 Ba8 Nd4+ Kc1 Ra2 Bc2 Nb3+ Kb1 Na1 Bg6 Rc2 Bh5 Rc4 Rg5 Bfh3 Rg2 Ned3 Nf1 Bhf5 Nb7+ Kb5 Rb8 Bg6 Rf8 Rc6 Ne3 Qf1 e1R Qe2 Nf1 Qee7 Re4 Ka6 Rd4 Kb5 Nc5 Ka5 Nb7+
B1bK2n1/1B2b3/2B4p/B1kNNn2/R1r2B1Q/3p1bnr/2PnRN2/2NRq3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 d5 Kf4 Kd7 Ke5 h6 g4 e6 b4 d3 f4 a4 b6 Kc6 b5+ Kc5 b7 a3 g6 d2 b6 d4 g7 a2 f6 d3 f7 Na6 b8B Rh7 b7 Qe7 f5 Qd7 g5 Kc6 f6 Qd8 g6 Nc5 Qh5 d1B Ne2 Qb6 Bd2 Qb2+ Nbc3 Be7 f8R Ra3 f7 Qb1 Bg2+ Kb6 Qh4 Rb3 Ne4 Rh8 Nf2 Kb5 Re8 Bf8 Bc6+ Kb6 Nc1 Bf3 Rd1 Ne4 Ba5+ Kc5 Bd6+ Kc4 b8N Rb4 Nd7 Be7 Nf6 Rh7 Bb8 Kc5 f8N Rc4 Nd5 Ng3 Bbc7 Nf6 g8B Rf7 Bh7 Ng8 g7 Qb4 Bf5 Qe1+ Be4 Rf4 Ng6 Rg4 Rb1 a1N Rb4 Nb3 Ra4 Nd4 Bb8 Ndf5 Bb7 Nf6 g8B Rg5 Bf7 Ng8 Ba8 Nh5 Bc6 Rg3 Bb7 Rh3 Bbc7 Bg5 Re7 Nhg3 Be8 Qe2 Bec6 Qe1 Re8 Be7 Kf4 Bh1 Kg4 Bg2 Bf4 e5 Bf3 e4 Ne5 e3 Ba8 Nh1 Kh5 e2 Kg6 Nhg3 Kf7 Bd6 Be4 Bf3 Re6 Be7 Ke8 Qc3 Bab7 e1N Ba8 Bh1 Bcb7 Nf3 Bc6 Nd2 Bab7 Bd6 Kd8 Be7+ Kc7 Rb4 Ba8 Nd6 Bcb7 Nh5 Nf7 Nf5 Nb6 Rc4 Bec6 Nb3 Nd5 Bf3 Re2 Qe1 Ne5 Nhg3 Na2 Nd2 Nc1 Bf8 Kd8 Be7+
Nn6/N1Q4K/4r1Pr/1n3bNN/3Bp1RR/3k1N2/1qr1p1R1/brbB1B1B w - - 0 1 illegal: No possible last move
3b4/B5bR/1PKBQ2p/1B1n1b1r/Bbr1pN1k/3R1B2/Q4rQ1/NnB1q3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 Kg6 Kd4 a5 Kc5 e5+ d6 e3 f4 e2 b4 e1R g4 c6 d4 a4 b6 a3 b5 a2 b7 Be7 d5 Bd7 f5+ Kf7 f6 Kg6 f7 Bc8 f8B Bf5 b6 Qe8 Qd2 Re2 Na3 Qf7 Nc2 Qg7 Nh3 Ra6 Nf4+ Kf7 g6+ Ke8 g5 Rf2 Bb5 Ra4 Qe1 Qf6 g7 Qe6 g6 Nf6 g8B Bd8 g7 Qe7 Rb1 a1B Rb3 Bc3 Na1 Bb4+ Kc4 Nbd7 b8B c5 Ba7 Ne4 Rd3 Qe6 Qg1 Qe7 Qg2 Nc3 Be6 e4 g8B Nb1 Rh5 Qh4 Rh6 Bg6 Bg4 Bf5 Bf3 Qh1 Rh3 Qe1 Rh5 Bf6 Be6 Bg7 Bf7+ Kd8 Be8 Nf6 d7 h6 Bd6 Rf8 Rg5 Rf7 Rg3 Re7 Rg6 Re5 Rg5 Raa2 Ba4 Rac2+ Kb5 c4 Kc6 c3 Bb5 Bh7 Rg6 Rh5 Rg4 Bf5 Rg5 Bf8 Rg7 Be7 Ba4 Bf8 Rh7 Bg7 Be5 Ke7 d8Q+ Kf8 d6 Nd5 Qa8 Kg8 Bd7+ Kf7 Bd2 Rc1 Be3 c2 Be8+ Kf8 d7 Ke7 Bd6+ Kf6 Qc8 Rd1 Bd2 c1B Bb5 Bb2 Bc1 Be5 Ba4 Rdd2 Qa6 Rc2+ Qc4 Bd4 Bb5 Bdc5 Qa2 Rc4 Ba4 Bg4 Bb5 Kg5 Ba4 Kh4 d8Q+ Bf6 Bd7 Bf5 Qe8 Bd8 Qe6 Bc3 Bc8 B3d4 Ba6 Bg7 B6b5 Bb4+
2N1B3/1n2N1nr/pBQpNq2/5Q2/Nb1Kb1R1/b4r2/kBNPN3/3r1R1b w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ke2 Kf7 Ke3 h5 f4 e5 g4 h3 c4 a6 c6 e4 f6 Ke6 f5+ Ke5 c5 Kd5 c7 h2 b6 d6 c6 h4 g5 h3 b7 Qe7 f7 Nf6 g6 Rg8 g7 Nbd7 b8B Rh8 g8N Qe5 Bb2 Nh5 f6 Bg7 f8N Rh7 f7 Qf6 Bb5 Bb7 c8N Nc5 c7 Ra7 Bd7 Kc4 Qc1+ Kb3 Ra4 Bh8 Na3 Ng7 Rd4 Ka2 Nb6 Bc6 c8N Nb7 Na4 Ra8 Ke2 e3 Kd3 e2 Ba7 e1B Be8 Bf2 Rg4 Bc5 Nge7 Bb4 Bb6 Be4+ Kc4 Ra7 Ne2 Ra8 Rhg1 h1B Rf1 h2 Ne6 Ra7 f8Q Rh3 N6f4 Rf3 Nc2 Qe6+ Nfd5 Nc5 Nf5 Bg2 Rh1 Nh5 Ne1 Ba3 Qf7 Bc3 Nfd4 Bcb4 Qf5 Qf6 Ne6 Rh7 Nde7 Ng7 Qc3 Nb7 Nc2 Rf2 Rg1 h1R Re1 Rf3 Rb1 Qf8 Kd4 Rc1 Qc7 Bh1 Qc6 Rg1 Rf1 Qf7 Rf2 Rd1 Rf1 Qf6+
3Nnb2/NN1Np2B/2bq4/BR4K1/1Q4nr/1Nnp1k2/P5nr/1RQ1Rb1N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 Kf6 Kf4 b5 h4 d5 c4 g6 h6 d4 h5 b3 h7 b4 c6 b2 c7 b3 c5 Qd5 c6 Ra6 h6 Qa5 Ne2 Rb6 Bd2 Qa6 Ng3 Bg7 Ba5 Qa7 Qc1 Qa6 Nd2 b1N Bd3 b2 Re1 Qc4 Nb3 Ba6 c8N Rb4 c7 Qe6 Nh1 Nd7 Na7 Bf8 c8N Ne5 Nd6 Nc3 Nb7 Qd6 Rb1 Ra4 Be4 Bf1 f3 Nd3+ Kg4 Ke5 f6 g5 f7 Nf2+ Kh5 g4 Kg5 g3 f4+ Ke6 f5+ Ke5 f6 g2 Bd3+ Kd5 Bc2 g1N Bf5 Nge2 Bg6 Bg7 f8Q Ng4 f7 N8f6 Qb8 Ne8 f8N Nf4 Nd7 Ng2 Bf5 Bf8 Bg6 Rg8 h8N d3 Nf7 Rh8 h7 Rb4 Ra1 b1B Nfd8 Bc2 Rb1 Bd1 Bf5 Bf3 Be4+ Kc4 Bg6 Bc6 Bf5 Kd5 Bg6 Rg8 h8R Rd4 Rh4 Rh8 Bh7 Re4 Rh6 Re2 Rg6 Ke4 Re6+ Kf3 Re5 N2e3 Rb5 Rh2 Qa3 Ng2 Qc1 Qb4 Qd6 Qd4 Qb4 Qd6 Bf5 R8h3 Bh7 Rh4
1QKB1qkr/1b1Qppn1/Q1R2B2/4P1rQ/6r1/2b3b1/1NB2r1R/N2Qn2Q w - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 Kf2 c5 Ke3 a5 Ke4 g3 b4 g2 d4 a4 h4 a3 h5 c4 d6 a2 Kd5 c3 e4 c2 h6 Na6 Kc6 Rh7 g6 Bf5 Kb7 Rh8 g7 Be6 e5 Bb3 d5 Nc7 b6 Qd7 b5 Nf6 g8Q Ra3 h7 Ra6 Ne2 g1B Qg5 Bg7 Nd2 Kf8 Rh2 Rg8 h8Q Ra5 Qgh5 Nh7 Nc3 Ra8 Na4 Qe6 d7 Qh6 d8B Ne6 d6 Nhg5 d7 Bd4 Bd3 Nf3 Nb2 Bc3 Bg6 Ra4 Kc8 Rg4 b7 Ne1 b8Q Bd5 b6 Ba8 b7 Bf6 Qd6 Ng7 b8Q Bh4 Nb3 Bg3 Bg5 c1R Bf6 Rc2 Rc1 a1R Qa6 Rf2 Bc2 Raa4 Na1 Rg5 Qh7 Rag4 Qe4 Rh8 Qh1 Bc6 Bb6 Kg8 d8Q+ Be8 Q8d4 Bc6 Bd8 Ba8 Qdd6 Ne8 Qd6d3 Qf8 Qd7 Ng7 Bf5 Ba5 Rc6 Bc3 Bc2 Bb7+
k1Bn2n1/3PN1r1/2R1BrQ1/b1p1Rn1R/2Nn2Nr/qbKN4/3RpB2/2N5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 g4 c5 d6 h3 f6 e4 f5 e3+ Kc3 a4 d5 a3 g5 h4 f7 h2 b6 h3 b5 a2 b7 Ra4 b6 Bh6 f8N+ Ke8 d7+ Ke7 d6+ Kf7 f6 Qe8 d8R Rh4 Ne2 Na6 b8R Bf5 b7 Rf4 Nd2 Rh4 Rbc8 Rb4 b8N Rb2 Nh7 Ke6 f7 Kd5 f8N Bc2 g6 Qa4 g7 Bb3 Qc2 Nb4 Ne6 Qa3 Qg6 Nc6 Nc4 Bf4 d7 Bc7 Re8 Nd8 Nc6 Bb6 Rb1 a1N Bd2 Nc2 Nc1 Ra2 Be1 Nd4 Bf2 e2 Rb2 Ra1 Rd2 Bc7 Nef8 Rb1 N6e5 Bb6 Ned3 Bc7 Nd6 Kc6 Nf6 Rh4 Nc4 Kb7 Ng4 Ka7 Bg2 Ba5+ Nb4 Rb2 Rc6 Ka8 Re5 Ra2 Qd3 Ra1 Ng6 Rh6 Ne7 Rf6 Qg6 Rb1 Re1 h1N Rg1 Ng3 Rh1 h2 Bf3 Nh6 g8B Ngf5 Be6 Ng8 Bg2 Bb6 Nbd3 Ra1 Re1 h1R Rg1 Rh7 Rh1 Rg7 Rh5 Bc7 Na2 Rh1 Nac1 Rh3 Rb6+ Ka7 Bb7 Rh4 Bc8 Ka8 Rc6 Ba5+
1bRRrn1b/R2p1p1R/bqR4N/3PB3/2Q1K1Bn/4r3/NN1k1rBN/2r5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 Bb7 axb5 Bc8 Kf2 Ke7 Kf3 Ke6 e4 Ke5 d4+ Kf6 h4 a5 c4 g5 b6 a4 b7 a3 c6 a2 c7 Bh6 e5+ Kf5 e6 Na6 b8R Rh7 e7 Ra7 e8N Nf6 c5 Rb7 d5 Nb4 c6 Rg7 Qa4 Na6 Nd6+ Ke5 Nc3 Nc5 Qc4 Ne6 Nf5 Ng8 Bg2 Rb6 Bb2 Bb7 c8B Rh7 c7 Bf8 h6 Ne7 h5 Rh8 h7 Rb3 h6 Ba6 Rb6 Ng6 Rc6 Bd6 Bb7 Re8 c8R Bc7 h8R Bb8 h7 Nef8 Nh6 Qb6 Rg8 Ra3 h8N Rb3 Rg7 Ra3 Rh7 Rb3 Rd8 Ra3 Rc1 a1B Rcc8 Rb3 Bc6 Ra3 Bb5 Rb3 Ba4 Ra3 Bd1 g4+ Ke2 g3 Kd3 Rb3 Bg4 f3 Rh4 f2 Nf3+ Kd6 Rh2 Nh4 Ng6 f1R Nge5 Rf2 Ke4 Ra3 Na2 Rb3 B2h3 g2 Rhh1 g1R Nh2 Ra3 Bg2 Rh3 Rc3 Rc1 Ra3 Bb7 Ra7 Ba6 Be6 Rhc3 Nd3 Ra3 Bd4 Bc3 Nb2 Rb3 Be3 Bh8 Bd4 Rd3 Re1 Ra3 Re3 Rb3 Rf3 Re3+ Kf4 Qa5 Qd3 Ree2 Bg4 Qc7 Be5+ Kc5 Qe4 Kb5 Qc2 Qb6 Qe4 Rd2 Qc2 Rd3 Ke4 Ra3 Rf6 Rb3 Nc3+ Kb4 Rfc6 Ra3 Qd3 Kb3 Qb5+ Kc2 Na2+ Kd2 Qc4 Re3#
KNR1B1NB/1QP2p2/1nrrRB2/4pnq1/NB1R4/bb2R1R1/2b1b3/3r3k w - - 0 1 illegal: No proof kernel
1nR1n1N1/2pk4/RP2RBb1/2b3r1/2RB1NpR/4QRK1/2r1Bnq1/1Q1r3r w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 e5 d4 g5 h4 a5 f4 g3 h5 g4 f6 e4 f7+ Kd7 d6 g2 Kf2 e3+ Kg3 a4 d5 e2 h6 e1R b6 a3 b5 a2 b7 Re4 f5 Qe7 f6 Na6 b8R Ra4 b6 Bb7 h7 Bh6 f8R Rf4 f7 Nc5 Rbe8 Nf6 Nc3 Ng8 Ne4 Ra3+ Be3 Ba6 Qb1 Bb5 Ne2 g1N Rh4 Ra5 Bd4 Rf2 Nf4 Nb3 Be2 Qf6 Re6 Nc5 Rc8 Na6 f8R Qf5 Bf6 Nh3 Bd4 Nb8 Bf6 Ne7 Rf7 Rd8 h8B Bf8 Bd4 Bd3 Bhf6 Rf1 Qc1 Nf2 Qe3 Rd1 Rc1 a1R Rc4 Nc6 Ra8 Nb8 Ra6 Bg7 Rf8 R1a2 Rf7 Rc2 Rf8 Ng8 Rf7+ Kc8 Rf8 Rh1 d7+ Kb7 Rf7 Bf8 d6 Be7 Rf8 Qb5 Rf7 Qb1 Rf8 Qf1 Rf7 Rc5 Rf8 Kc6 Rf7 Re8 d8Q Bf8 Qc8 Rd8 d7+ Bd6 Ng5 Bg6 Ne4 Kb5 Qb7 Rg5 Qd5+ Bc5 Qf5 Ne7 Rf8 Nc8 Rf7 Nd6 Rf8 Re8 d8R Kc6 Rc8 Rd8 Rf7 Bh5 Rf8 Kd7 Qg6 Ne8 Qh7+ Be7 Qf5 Bg6 Qb5+ Nc6 Qb1 Nb8 Bfe5 Bh5 Bc3 Rc1 Ng2 Bg6 Rf3 Rc2 Nf4 Bc5 Bb2 Nd6 Bg7 Kc6 Nf6 Rd7 Ng8 Rd8 Re5 Ne8 Bf6 Rd1 Re6+ Kd7 Bbd4 Qg2+
Q1bRNnBr/1p2bBK1/r1p1N3/BRb1N1N1/P7/5r1N/6n1/1qB2kbR w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 a4 Qf6 e4 Kd7 Ke2 g5 Kd3 g3 Kd4 c6 h4 g4 h5 g2 h6 g3 d6 Ke6 h7 Ra6 d7 Ra7 d8N+ Kd7 a6 Ne7 Nc3 Qf5 e6+ Kd6 e5+ Kc7 Bc4 Kb6 Ne4 f6 Ng5 Rg8 h8N Nd5 e7 Nf4 e8B Be6 N1h3 Ra8 a7 Ka5 Nhf7 Rh8 Rb1 Nd7 Rb3 Qb1 Rb5+ Ka6 d3 f5 Qe1 Ba3 Bd5 Nf8 Qe4 Bd7 e6 Bb4 Ke5 Ba3 Kf6 Bd6 Rb2 Ka5 d4 Ba3 Bb3 Kb4 d5+ Kc3 e7 Bd6 Qe1+ Kd3 Qa5 Bb4 d6 Be6 Bd2 Ke2 Ne5 Bd7 Bg8 Be6 Bg6 Bd7 e8R Bc8 d7 Be7+ Kf7 g1B Rb6 g2 Rb5 Bgc5 Kg7 g1B Bc1 Ng2 B6f7 f4 Nde6 f3 d8B f2 Qa6 f1R Ba5 Bd7 Rd8 Rb8 a8N Bc8 Nac7 Ra8 Ne8 Rf3 Qa7 Kf1 Qb8 Ra7 Qa8 Ra6
2r2BnR/p2K1nB1/1Nq2b2/6Nb/5Rrb/1R1Bb3/Np3P2/k2nQRRB w - - 0 1 illegal: No proof kernel
2R1nB2/Rn2N3/K4N2/2p1q2B/bp2RQ1Q/P3Rr1R/nbNk3n/1R2q1r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kf4 d4+ Ke4 h4 c5 f4 e5 h6 g5 h7 b6 d6 g4 d5 b3 f6 b2 h5 g3 h6 g2 f5 Na6 f7 Nf6 d7 Ra7 d6 Rb7 Qe1+ Kd4 Ne2+ Kd3 Qh4 g1Q Nf4+ Kc2 Be2 e4 Ng6 e3 Bh5 e2 Na3+ Kd1 Ne7 b1N Nc2 Ng8 f6 Qc7 d8R Nb8 d7 Qe1 Re8 Nc6 d8R+ Bd7 Rc8 Nd8+ Ka6 Bg7 f8Q b5 f7 b4 a3 Nf6 Rh3 Qb8 Re3 Nc3 Rb1 Rg8 h8R Na2 h7 Qe5 Rc7 Rb8 Ra7 Ba4 Re4 Nb7 Bh6+ Nc1 Rc8 Ne8 Re3 Bf6 Re4 Rg1 Rg8 Qd4 h8R Qe5 Rg3 Ra8 Rge3 Kd2 Qg7 Rb8 f8N Na2 Qgg4 Bg7 Nd7 Ra8 Rc7 Rd8 Nf6 Rd3 Rh7 Bh8 Bf8 Bg7 Rg3 Rf3 Rc8 Rf5 Nfg8 Qf2 Qf6 e1N Bg6 Qed4 Rhh3 Nf3 Qfh4 Nh2 Bh5 Qe1 Rge3 Rf3 Qf4 Be5 Nf6 Qd5 Rb8 Bb2 Rc8 Qe5
R1NB2RN/1n1B1b2/n1q2N1n/P1bNk3/n3r2B/Rq1K3p/1r1Bp3/3Q3N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 d4 e5 f4 h5 a4 c5 g4 b5 a5 b3 f6 b4 d6 Ke6 f5+ Kd5 f7 b2 d7 h4 f6 b3 g6 c4 g5 c3 g7 h3 g6 c2 Nc3+ Ke6 d5+ Kd6 Bd2 c1Q Ra3 b1N Kd3 b2 Nge2 Rh6 Ng3 Rh8 Rg1 Qb6 d8B Qb3 Nh1 Nh6 g8N Na6 g7 Rb8 Ne7 Be6 g8N Rb4 Bg2 Re4 Bf3 Rh7 Bg4 Rg7 Bf5 Rg2 Bg4 Bg7 f8N Bf7 Nfg6 Bf8 Bd7 Rge2 Ra2 Na3 Nh8 Nb5 Ra3 b1N Rg3 Kc5 Rg2 Nd6 Nc8 Nb7 d6 Rf2 Bf5 Kc6 d7 Bc5 Be7 Rfe2 d8B Rf2 Bf4 Rb2 Bd2 Qb6 Nd5 Nc3 Rg3 Qb3 Be6 Bg6 f7 Na4+ Nc3 Bh5 f8R Be8 Bh4 Bf7 Na7+ Kd6 Bd7 Rb4 Nf6 e4+ Ke2 e3 Rgg8 Rg4 Kd3 e2 Nc8+ Ke5 Re8+ Qe6 Ncd5 Re4 Ref8 Qc6 Bg4 Qb6 Bd7 Qb3+ Nc3 Rb1 Bb6 Qb4 Ne7 Be3 Ncd5 Qc6 Ra8 Rb2 Nc8 Bc5 Bd8 Qb3+
4BbKn/k2r3N/1nbpB1n1/2QRN1r1/3P4/2p1Nn2/qNNQq3/RB2N3 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 b5 hxg5 f5 exf5 Kf7 c4 Nh6 Ba3 Ke8 cxb5 Bg7 b6 Bf8 b5 Ng8 Bb4 axb4 Ke2 h5 Ke3 e5 Ke4 c5 Kd5 h4 d4 c4 a4 c3 g4 h3 f4 h2 a5 e4 f6 b3 a6 e3 g6 b2 f7+ Ke7 g7 e2 f5 e1N a7 Nh6 g8B Qc7 f6+ Kd8 g5 Nf3 b7 Nd2 g6 Qa5 g7 Kc7 Na3 Kb6 Nf3 b1N Ne1 Qa4 Bd3 Bc5 f8Q Bd6 f7 Qc2 Nc4+ Kc7 Nb2 Ba3 Qc5+ Nc6 b8N Kb7 f8N d6 b6 Qc1 Na6 Qc2 Nh7 Ne5 Nb4 Ndf3 Bf7 Ng6 g8B Qe2 Nbc2 Nbd2 Be8 Bd7 Be6 Nc4 Qd2 Rd8 a8N Nf7 Nc7 Rg8 Bdf5 Kb8 b7 Nfh8 Rg1 h1Q Rg5 Bb4 Bd3 Ba5 Re5 Bb6 Bdf5 Ba4 Be4 Ka7 b8N Rg7 Nd7 Qhg2 Rf5 Qh2 Ne5 Rgd7 B6f7 Qhf2 Ke6 Rb8 Nd5 Ra8 Qc6 Bd8 Qc5+ Nb6 Nde3 Be7 Rg5 Bf8 Kf6 Qc4 Be6 Qa2 Rf5 Bc6 Rh5 Be7+ Kg7 Qe2 Kg8 Bf8 N5d3 Nh2 Ncb4 Bb5 Qc6 Rc8 Bf5 Rcc7 Qd5 Rf7 Qc5 Rcd7 Be4 Rf4 Rd5 Bc6 Ne5 Rg4 Bb1 Rg5 Nbc2 Nf3
3bq3/2k1BK2/bp2R1Br/5Q2/1bN3p1/1nB1BNrR/Qq2BP2/1n2bB1N w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Ke3 e5 Ke4 g5 h4 c5 d4 c4 a4 c3 h5 c2 a6 b6 d6 g3 Kd5 g2 a5 g4 f6 e4 f7 e3 h6 e2 h7 e1B a7 Na6 Qd2 Bh6 f8Q Nb8 a6 Bg5 Na3 Qe7 Nf3 g1Q Nc4 Nc6 Rh3 Qg7 Qf5+ Kd8 d7 Bh4 Ke6 Qh1 d5 Qc3 Kf7 Kc7 d8N Nf6 Nb7 Nb4 d6+ Kc6 d7 Qg1 d8B Qa3 Nbd6 Nd7 Be7 Nc5 Ne4 Kc7 Ng3 Nb3 Nh1 Qb2 Ra5 Bb7 Re5 Nd5 Re6 Nc3 Qe2 Bc8 Be3 c1B Qec2 Nb1 Be2 Qc3 Qa2 Ba3 Bf1 Bb4 Be2 Rd8 h8B Qb2 Bc3 Rd3 Bf1 Rb8 a8B Qh2 a7 Ba6 Bb7 Rh8 a8B Qe5 Be4 Rh6 Bac6 Qh8 Bb5 Bg5 Qf4+ Qe5 Bg6 Bh4 Qf5 Bf6 B7c5 Bd8 Be7 Qh8 Be2 Qe8+ Kg7 Rd1 Nce5 Nc1 Bec4 Bd2 Kf6 Rg1 Bf1 Rg2 Bbe2 Nb3 Nc4 Be1 Kg7 Rg3 Kf6 Qd7 Kf7 Qe8+
r2b4/3R2q1/PB2qpbQ/1bNK4/1NrN4/p3RNQn/N4bn1/Q1N2B1k w - - 0 1 illegal: No proof kernel
K4N2/1R2B1Bp/1q1Q1NR1/1kbr1B2/1N1Pq2q/3Npbn1/2n2qNR/4r1B1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 c5 Ke4 e5 b4 a5 g4 h3 f4 h2 g5 a4 b6 a3 g6 c4 f6 a2 b7 c3 b5 c2 g7 Ba3 d6 Qe7 Kd5 e4 b6 Nh6 g8N Qf8 f7 Qg7 f8N+ Ke8 f5 Qb2 d7+ Kd8 f6 Be7 f7 Bc5 Nf6 Ng4 Bh3 Ne5 Ne2 Qb5 Nbc3 Nec6 Bf5 Qb4 Na4 Nd4 Nf4 Nbc6 b8N Ne2 b7 Kc7 Ng2 Ncd4 Nb2 Kb6 d8B+ Kb5 Nc6 Ra5 b8R+ Bb7 Nd3 Ng3 Be7 Qa4 Bb2 c1Q Rg1 Nc2 Bd4 h1Q Rb1+ Ka6 Rb2 a1Q Ra2 Ba8 Rb7 Qab1 Bf2 Rb5 Ncb4+ Ka5 Kc6 Qcb2 Kc7 Qh4 Kb8 e3 Re1 Rb6 Bg1 Kb5 Rf1 Rg8 Rf4 Rg5 Rg4 Rh5 Rg6 Qa5 Qf1 Qa4 Qf4 Qf1 Qd6 Qf2 N8d7 Qbd4 f8B Qb3 Rb2 Qde4 Bg7 Qbe6 Nf8 Qb3 Bg4 Rd5 Bf5 Ka5 Nge1 Qef3 Na2 Q2e2 N8d7 Rd4 Ndc1 Na1 Nf8 Ra6 d3 Qb6 Nb4 Kb5 Rc2 Qef1 Rh2 Nc2 Ng2 Qe1 Qd5 Qef2 Qd6 Rd5 d4 Ra1 Ncd3 Re5 Kc8 Rf1 Ra7 Re1 Rd7 Be4 Rb7 Rd5 Kb8 Qff4 Ka8 Bf3 Qe5 Qfg4 Qd6 Qe4
r1q1n2q/Br2N1np/p1n1N3/3R4/N2Nn2k/1QQb3N/B1P3R1/b2K1RN1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 Kf7 b4 d5 f4 e5 b6 a6 g6+ Kf6 g7 e4 b7 e3 b5 e2 b6 d3 g5+ Kf7 g6+ Kf6 Ra5 d4 Nc3 Bd7 Qd2 Be7 Rd5 Be8 Na4 Bd7 Qc3 Bb4 Be3 Ne7 g8R Bc5 g7 Nbc6 b8Q Nc8 b7 Nd6 Kd2 e1N Kd1 d2 Bc4 Qc8 Ba2 Ne8 Bf2 Nd3 Be3 Kf7 f6 Kg6 f7 Bf5 f8N+ Kf6 Ng6 Nf2+ Ke2 Ne4 Kd1 Ba3 Bf2 Bb2 Be3 Bd7 f5 Ba1 Nf4 Kg5 f6+ Bf5 Nfh3+ Kh4 f7 Bg6 f8N Bf5 Ke2 d1N Ne6 d3+ Ke1 Bg6 Ba7 d2+ Ke2 Bf5 Qbg3+ Kh5 b8N Ne3 Qf3+ Kh4 Qb3 Bg6 Qc3 Nf5 Kd1 Nfg3 Qb3 Nh5 Qfc3 Bf5 Rf8 Bg6 g8N Nhg7 Ne7 Rg8 Rf1 Rf8 Ke2 Rf7 Rh2 Bf5 Rg2 d1Q+ Ke3 Qd4+ Ke2 Qf6 Kd1 Bg6 Nd4 Qe5 Nd7 Bf5 Ndc5 Qf6 Ng8 Rb7 Ne7 Qf8 Nce6 Qh8 Rg5 N4d6 Rg6 Bd3 Rg2 Ne4
2n2k1B/3K1pr1/1r4bq/N3B2N/BNNN1P2/p7/RRRq2bb/B1Q2nb1 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 Kd2 g5 Kd3 a5 Ke4 d6 Kd5 a4 f4 a3 c4 g3 h4 g2 e4 g4 h5 g3 c6 Be7 c5 Rh6 e6 Bg5 e5 Rh8 c7 Bd7 c8N Na6 b6 Nh6 c6 Kf8 b7 Nb8 e7+ Kg8 e8N Ng4 e6 Qa5+ Bb5 Ne5 c7 Bh6 e7 Bg7 h6 Bf5 Nd2 Nbd7 b8B Nf3 Kc6 d5 Bb2 d4 Nb3 d3 Na7 d2 c8R Nh2 Nf3 g1Q Ra2 g2 Ba1 Rh7 Ba4 Bd4 Be5 Rb8 Ng7+ Qd8 e8N Bg6 Kd6 Kf8 Na5 Nb6+ Kc6 Qg5 Nh5 Qf2 Qb1 Be3 Nd4 d1B Kc7 Bdc2 N7c6 Bce4 Nb4 Qd2 Kd6 Bd5 Rcc2 Nc8+ Kd7 Rb6 Nd6 Ba8 Rf1 Bg1 Ndc4 Bae4 Rd1 Nf1 Qb2 Bd5 Rb1 Bh2 Qc1 g1B Rb3 Bg2 Rbb2 Rh8 h7 Rg8 h8B Qh6 Bc7 Rg7 Bd6+ Kg8 Be5 Kf8
1B2N1b1/1n3pr1/2bB1R2/N1q2Qrp/R1KB2BP/8/1B1k3r/1rnBqQ1R w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 d5 cxd5 h5 a4 b5 axb5 g6 g5 Bh6 gxh6 Kf8 Qa4 Ke7 Qd1 Ke8 e4 Kd7 Ke2 Kd6 Kd3 Kc5 b4+ Kd6 h4 Ke5 h7 a5 b6 c5 b5 g5 d6 f3 b7 Kf4 d7 g4 b6 f2 e5 g3 e6 a4 e7 a3 e8B g2 Kc4 a2 Be2 f1B Nf3 g1R Nh2 Na6 b8B+ Qc7 d8Q Nf6 b7 Ng4 Qd7 Rg8 h8B Bg2 Qf1+ Nf2 Ng4 Bc6 Bcb2 Rg7 Nf6 R1g5 d4 Ke3 d5 Nd3 d6 Nc1 Na3 Kd2 Bd1 Qa5 Qg4 Bf5 d7 Bh7 Qgf5 Bg8 Bd6 Rd8 b8B Rc8 Rb1 a1R d8R Rc7 Rc8 Ra2 Bg4 Rb7 Ra1 Rb6 Bd4 Rb1 Bd1 Qc7 Bd7 Qa7 Be6 Qe7 Bd7 Qe1 Ne8 Rg4 Q5f3 Ba8 Nc2 Ne2 Bdc7 Kc1 Nb4 R7g6 Nc6 R4g5 Bg1 Rd2 Bhe5 Rg7 Na5 Be4 Rd8 Bc6 Bg4 Rc2+ Kd3 c4+ Ke3 c3 Kd3 Ra2 Qf5 c2 Rd6 Rb2 Rf6 Nc5+ Kc4 Nb7 Ra4 Rb3 Bga7 Rh3 Bb2+ Kd2 Bd6 c1Q+ Kb4 Rh2 Bd4 Qc5+ Kb3 Qa7 Kb4 Nc1 Kc4 Qc5+
Br2BB2/1b3p1Q/q3p3/b1B1NB2/2R2N2/4Qnk1/QRP1bq1b/K4nrB w - - 0 1 illegal: No proof kernel
2QN1bk1/b1nnP2R/2q1b3/B1B5/NQ1B2BR/4KrpB/R1pr2qB/7b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 f5 b4 Kf7 d4 g5 e4 a5 h4 c5 d6 c4 h5 a4 e6+ Kg7 d5 g3+ Ke3 a3 d7 a2 e5 c3 d6 g4 e7 g2 e8B c2 b6 Kh7 e6 Ne7 b5 Kg8 b7 Kh7 b6 Na6 b8Q Bg7 b7 Kg8 h6 Qc7 d8B Be5 d7 Qb6+ Qd4 Qb4 Nf3 Ng6 e7 Qc4 Ba3 Nf8 Bb6 Nc7 d8B Nd7 Nc3 Bg7 Rh4 Qc6 Qb4 Bf8 Nd4 Ra5 Be2 Rd5 Ne6 Rd2 Na4 Rh7 Bd1 Rf7 Bd4 Rf6 Qa8 Rf7 b8B g1Q+ Kf4 Qf1+ Ke3 Qfg2 Be2 Bb7 Qa6 Ba8 Qc8 Rf6 Bh5 Rf7 Bf1 g3 Bba7 Rf6 Bg4 Bb7 Qb5 Rf7 B3c5 Ba8 Qb4 Bb7 Rb1 a1B Rb2 Rf6 Ra2 Rf7 Kf4 Bb2 Bg1 Bd4 Bh2 Rf6 Bfe2 Ba8 Bh3 Bf2 Beg4 Rf7 Kg5 f4 Bab6 f3 h7+ Kh8 Ba5 Bd4 Bab6 f2 Ba5 f1B Bab6 Bf6+ Kf4 Bc4 Ke3 Be5 Bd4 Rf4 Bbc5 Bf6 Ng5 Be6 Nf7+ Kg7 h8R Rff2 R8h5 Kg8 Rh6 Be5 Rh7 Bd6 Bb6 Bc5 Ba5 Ba7 Bc5 Nb5 Bdb6 Nc7 Nd8 Rfe2+ Kf4 Re3 Bd4 Red3 Bbc5 Rf3+ Kg5 Qb7 Qb3 Qh1 Qb2 Rb3 Kf4 Qb6 Bf2 Be4 Qd4 Qc6 Qb4 Qg1 Bfd4 Bh1 Bab6 Qgg2 Ba5 Rb1 Ke3 Rf1 Qb6 Rf4 Qb4 Rf3+
BBqBN3/b3p3/b1Nq1p1Q/4RN1N/1r1qq1k1/1P5N/Q3rn1R/2N1n2K w - - 0 1 illegal: No possible last move
Rb2bRb1/1R1P1bNN/R1pN3p/Q1BBk3/B2q1nRK/2rnq3/6r1/7B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 d4 Kd6 b4 f5 g4 a5 e4 f3 Kg3 c6 g6 h6 g7 a4 b6 f2 g5 f4+ Kh4 a3 b5 a2 b7 f3 e5+ Ke7 b6 Ra7 g6 Rh7 e6 Kd6+ e7 Be6 Nc3 Qd7 e8N+ Ke7 d6+ Kd8 d5 Ne7 g8B Ra6 g7 Bg4 Qd2 Qf5 d7 Qc2 Bb5 f1B Ne4 f2 Ba4 Qc3 Nf3 Bh5 Ba3 Bc4 Rhg1 f1B Rg4 Qe3 Nfg5 Bf7 N4d6 Bfd3 Qe1 Bdg6 Qa5 Ra8 Bb4 Na6 Bc5 Rh8 Bh7 Nb4 g8B Nd3 Ng7 Be8 Be6 Bgf7 Be4 Rg8 Nh7 Ra6 Bh1 Ng6+ Kh5 Ke7 d8R Ngf4+ Kh4 Ra7 b8R Ra8 b7 Bb3 Ng5 Kf6 Nh7+ Ke5 Rdc8 Ra6 Ra8 Rb6 b8R Rb4 Rg2 Rc4 Rb7 Rc3 Rg4 Bc4 Ra6 Bb3 Rf1 a1Q Rca8 Qd1 Ndf5 Qa1 d6 Ba2 d7 Bd6 Bed5 Bb8 Rf3 Qag1 Nd6 Qd4 Nh5 Rg6 Ng7 Qge3 Rg1 Rg2 Rff1 Rf2 Rg4 Rg2 Rf2 Bg8 Rf3 Ne2 Rf8 Nef4 Be4 Bae6 Bd5 B6f7
1rrRN2k/1bN1q1n1/KbqNR2B/8/2BBQQp1/1B3pr1/bB3P2/1B4q1 w - - 0 1 legal: proof: e4 b5 g4 h5 d4 d5 a4 c5 axb5 Na6 dxc5 hxg4 Bf4 d4 Bg5 Nc7 Bc1 Nd5 exd5 Qd7 Na3 Qc7 Nb1 Qd8 Ke2 f5 Kd3 Kf7 Kc4 e5 b4 a5 h4 g5 h5 Kg7 c6 e4 h6+ Kh7 d6 e3 b6 d3 Kb5 g3 c4 a4 c5 e2 d7 e1Q c7 a3 c6 f4 b7 a2 b8Q g4 Qc2 f3 Na3 g2 Nc4 Be7 Ne2 g1Q Nf4 Qe8 d8N Ra7 Nfe6 Bf6 Ng7 Q8e4 Bb2 d2 Nd6 d1B Nge8 Ne7 Ne6 Nf5 Bc4 Qf4 Qe4 Bc2 Rd1 Rb7+ Ka6 Bg5 b5 Bd3 b6 Bd7 c8B Bf6 c7 Qc1 Rh2 Kg6 h7 Bb1 Rd3 Rg8 h8B Bd8 Bhd4 Bc6 Bd7 Qh6 c8B Kh7 N6c7 Qe2 Bde6 a1R+ Ra3 Ba2 Rd3 Rf1 Bb3 Qe3 Bec4 Qg5 Rh5 Qe7 Rg5 Bd5 Rg6 Ng7 Bf5 Kh8 Re6 Re1 Qf4 Rf1 Qa8 Rb8 b7 Rc8 b8B Qhf6 Ncb5 Bb6 Nbc7 Be4 Qd5 Rd1 Qde5 Ba8 Rd2 Qg6 Bb1 Qe4 Ba7 Qc6 Qee4 Rb8 Nf6 Rgc8 Nfe8 Qh1 Be3 Rg1 Rd5 Rg3 Bec1 Ba5+ Bb6 Qg1 Rd3 Qd5 B6d4 Bb6 Qf6 Qf8 Be5 Bc6 Nf5 Bd7 Bh6 Bc6 Rd1 Qdc5 Rd8 Qfe7 Nfd6 Ba8 Bed4 Qc6 Qff4 Bb7+
2q1R1RK/2kq4/p4N2/n2R1N2/2nRr1bb/P4Qq1/1q2pRBq/BR1Q2N1 w - - 0 1 legal: proof: f4 d5 b4 c5 bxc5 g5 fxg5 Bg7 h4 Bh6 e4 dxe4 g6 Bf8 g4 b5 g5 a6 h5 Ra7 g7 Rd7 c6 Rd3 Na3 Rd6 Nb1 Rg6 hxg6 Qd4 Ne2 Qd5 Ng1 Qd8 Ke2 h5 Ke3 f5 Kf4 h4 Ke5 e6 c4 b4 d4 f4 c7 Kd7 a3 e3 d5 b3 d6 h3 c5 h2 c6+ Ke8 Nc3 e2 Nb5 b2 Nd4 b1Q Bg2 f3 Nf5 f2 Bb2 f1Q Ra2 Ne7 Kf6 e1Q g8R e5 g7 e4 g6 e3 Ba1 Qc4 Rf2 Rh4 Qf3 Bd7 c8Q e2 c7 Nbc6 Qa8 Qc5 c8R Ne5 Qad5 Re4 Qd1 Qb2 Rb8 Bc8 Rb4 Kd7 Rd4 Nc4 Kf7 Kc6 d7 Kc7 Rh8 Qec3 g8R Nc6 g7 Be7 Kg6 Bf6 Kh7 N6a5 Rd5 Qe8 d8R Qd7 Rge8 Be7 Rhg8 Bh4 Kh8 Qe5 Rd4 Qg3 Rd5 Qe6 Rd4 Qcb5 R8d5 Qbd7 Rgf8 Qec6 g8N Qcb7 Nf6 Qbc6 Nh3 Qce6 Rhf1 h1Q Ng1 Qhh2 Rg8 Qa4 Nd6 Qeh3 Re1 Bg4 Nf5 Qd7 Qa4 Qgd6 Rb1 Qf8 Qd1 Q3g3 Re6 Qfb8 Ree8 Qbc8
R1Nk2b1/R1R3b1/n1K2q1N/1B2b2p/N1n1B2P/1rN4p/1N1bq2B/1n1Q3R w - - 0 1 illegal: No proof kernel
1rb2N2/4p2B/q2BPp2/1r1NR1KN/q6N/n1NBn3/1QN3Rr/2Qnn2k w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bd7 g5 Bh6 g6 Bg5 hxg5 Bc8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 b4 c5 d4+ Kd6 g7 a5 b6 h5 g6 h4 b7 a4 e5+ Kc7 b5 a3 d6+ Kd7 Kg4 Ke6 b6 Kd5+ e6 Ke4 d7 a2 d5 c4 d6 c3 Nf3 c2 Rh2 h3 Ba3 c1N Kg5 Qe8 d8N Qc6 d7 Rh4 Bd6 Nh6 g8N Na6 b8N Ng4 g7 Nf2 b7 Nb4 Nf6+ Ke3 g8B Nc2 Nh5 Ncd3 Bh7 Qa6 Be2 Nde1 Rg2 h2 Ndc6 Rh3 Nh4 f3 d8N Rg3+ Kh6 h1R Nd4 Rh2 Nd7 Rg5 b8Q Rc5 Qb4 Rb8 Nc3 Rd5 Rb1 a1Q Nf8 Q1a4 Bed3 Na3 N8c6 Rf5 Qc2 Nd1 Qbb3 f2 Nb4 f1N Qc1+ Nd2 Rb2 Rfb5 Rg5 Kf2 Re5 Kg1 Kg5 Ndc4 Rg2+ Kh1 Qbb2 Nce3 Nbd5 Qb4 Nc2 Qc4 Rg4 Qca4 Rg2 f6+
2q1k1nq/1n4R1/B4R2/4N1pR/1r1Bn3/1R1pN1Pb/1nNq1QBb/3RN1K1 w - - 0 1 illegal: No possible last move
2K2n2/1R4R1/2N3rN/3pB1rq/B4bBB/qrRP1p2/kB3Q1q/nN2q1R1 w - - 0 1 legal: proof: g4 h5 gxh5 e5 a4 b5 axb5 d6 b6 Nc6 b7 Nb8 f4 exf4 b4 Nh6 c4 Bf5 b5 Na6 b6 Nb8 Nf3 Bd7 Ng1 Bb5 cxb5 Ng8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 h4 f5+ Kd4 g5 e4 a4 e5 a3 h6 a2 h7 g4 h5 f3 h6 f2 Bh3 f1Q Qc2 g3 Bg4 g2 Nh3 g1Q+ Nf2 Na6 b8N Qe8 b7 Nb4 b6 Nf6 Bb2 Qe1 Nc6 Qh5 b8B Ra3 b7 Rb3 Rh3 Rg8 h8B Rg5 h7 Bh6 Rc3 Nd7 Bf6 Qgh2 h8R Nf8 Rh7 Rg6 Rf7 Bf4 Bh4 d5 Kc5 Rg5 Qe4 Nc2 d3 Rg6 Qf3 Rg5 Nb4 c6 Kb6 c5 Kc7 c4 Kc8 Rg6 Na3 Rg5 Rc1 a1R Nb1 Ra6 Nc6 Na1 Rg7 Rab6 Bd6 Ra6 b8R Rab6 R3c2 c3 Rbb7 Ra6 Rd1 Rab6 Rcc1 c2 Bc7 Qe2 Rg1 Qe1 Bh3 Ra6 Ng4 Rab6 Qf2 Ra6 Rd1 c1Q Nh6 Qc5 Bg4 Qa3 Rc1 Rab6 Nb8 Ra6 Rc3 Rd6 Rg6+ Ke7 Rg8 Rg6 e6 Kf6 e7 Ke6 Bd8 Ke5 e8B Kd6 Ba4 Ke5 Qg3 Kd4 Be7 Be5 Qg2 f4 Bd6 f3 Rgg7 Bf4 Be5+ Ke3 Qg3 Ke2 Rcc7 Kd1 Nc6 Kc2 Bb5 Rc3 Qf2+ Kb3 Ba4+ Ka2 Nd8 Rb3 Rc3 Qh1 Nc6 Qh2
1B2BBN1/B7/4q2R/Rq1b3N/b1pR1n1K/p2BQ3/2Pn2kb/nnrQB3 w - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 a4 f5 h4 b5 axb5 Ra6 Ra3 Rg6 Ra4 fxg4 Ra1 g3 Qd2 g4 Qd1 Rg5 hxg5 Bd6 Rh2 Bc5 Rh1 Bf8 b4 Ke7 e4 Ke6 f4 d5 g6 h5 b6 c5 b7 g2 Kf2 a4 Kg3 d4 b5 h4+ Kf2 a3 g7 c4 b6 d3 Bb2 h3 Kg3 d2 Bd3 h2 Nh3 g1N Bc3 Nf6 g8R Qd6 Rg5 Nh5+ Kh4 Nd7 b8B g3 b7 g2 Ba7 Nc5 b8B Bd7 Bb4 Qa6 Nc3 Nb3 Nd5 Ba4 Nf6 Qb5 Ng8 Bd6 Rc1 Na1 f5+ Kf7 f6 Ke6 f7 Nf4+ Rh5 Nge2 f8B g1N Rb1 Nc3 Rc1 Nb1 Rh6+ Kd7 e6+ Kc6 e5 Kd5 e7 Rh7 e8Q Nf3+ Kg4 Rd7 e6 Be5 Rf1 h1B e7 Bc7 Kg3 Rd6 Bc3 Re6 Rf2 Re1 Re2 Bd6 Ree6 Be5 Ra6 Bc7 Ra5 Bd6 Qe2 d1Q Bb4 Rf1 Be1 Nfd2 Kh4 Rg1 Qf1 Qe2 Rd1 Qe6 Qe2 Be4 Qd7 Ke5 Qf2 Bd5 e8B Ne2 Nf4 Bc7 Nh5 Nf4 Bf1 Ke4 Qd4+ Kf3 Bd3 Kg2 Qe3 Ne4 Be2 Rf1 Rd4 Ned2 Bd3 Rg1 Bf2 Rc1 Bg3 Qg6 Qg4 Qe6 Qd1 Ne2 Bf2 Bh2 Be1 Nf4
Q1b1NqBN/1Rq3B1/2qbB3/pqpR1Br1/1Bk1n2K/P3B1Q1/8/N2nn3 w - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 f5 c4 b5 h3 bxc4 gxf5 a5 h4 g4 Qd3 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Qe7 Na3 Qf6 Nb1 Qd8 e4 Ke7 b4 d5 f4 h5 Kf2 c3 Kg3 c2 e6 Kd6 b5 Kc5 f6 d4 f7 c6 b6 d3 f5 d2 e7 Bb7 e8B Bc8 e5 Rh6 b7 Qd4 e6 Qg7 f6 Bd6+ Kh4 g3 f8B g2 f7 Qh7 g6 Qh8 a3 Na6 b8Q Kd4 e7 Nc5 g7 Ne4 Bd7 Qh7 e8N Nf2 Nf3+ Kd5 Bd3 g1Q Ne5 Rg6 Qg4 d1N Qa8 Qh6 Be3 c1Q Nd2 Nf6 g8B Rg5 Qg3 Qf1 Ng6 N6e4 Nb3 Qc5 Be7 Qf8 Nh8 Qb6 Rc1 Qc7 Na1 Qe2 Bc2 Qb5 Rb1 Nd3 Rf1 Kc4 Rf5 Ne1 Rd5 Qbb8 Be6 Qb5 Bf6 c5 Bc3 Nd2 Bcf5 Ne4 Kh3 h4 Bb4 Rh5 Kg4 h3 Rb2 Rg5+ Kh4 h2 Rb1 Qg7 f8B Qf6 Bg7 h1Q+ Bh3 Qhf1 Bhf5 Qbc6 Bbd2 Qd3 Rb7 Qf8 Bb4 Qb3 Bgc3 Qba4 Bg7 Qab5
1bN4q/qQ1q3r/1Np1rk2/4qBp1/2bN2R1/B1P2NRN/1N4nb/3K2QB w - - 0 1 legal: proof: g4 b5 d4 g5 a4 e5 axb5 f6 dxe5 Nc6 h4 Nce7 h5 Ng6 hxg6 f5 Qd3 fxg4 Qd4 Qf6 Qd1 Qd8 f4 Ke7 b4 a5 e4 d5 g7 h5 c3 d4 f5 g3 b6 h4 f6+ Kf7 e6+ Kg6 b5 c6 e7 a4 e8N h3 b7 g2 b8Q h2 f7 a3 b6 a2 b7 d3 e5 Qe7 e6 Qc7 e7 Qd7 Nd2 Qd8 Ndf3 Ra4 Ba3 Qd4 Nh3 g1Q Nd6 Rh7 e8B Be6 Bd7 Nh6 g8N Ng4 Ne7+ Kf6 Nc4 Ne3 Nb2 Bc4 Nc8 Qe5 Bf5 Bd6 f8N Ng2+ Kd2 Ra8 Ne6 Qa7 Rg1 h1Q Ned4 Bc7 Rc1 a1B Qe1 Bd6 Kd1 d2 Qc7 Qhh2 b8N Qh1 Qb7 Bc7 Na6 Bb8 Nc5 Qhh2 Nca4 Qh1 Nd3 Bb2 Nab6 Qhh2 Rb1 Bc1 Rb4 Qh1 Nhf2 Qh6 Nb2 Qg7 B1d3 Qh8 Nh3 Rd7 Bde4 Rh7 Kc2 d1Q+ Kb1 Nh4 Rg3 Ng2 Qg1 Qd2 Nb3 Qdd5 Kc2 Bf4 Nbd4 Qd7 Kd1 Qed5 Rg4 Bh2 Rg3 Qe5 Ne1 Nf4 Bh1 Ng2 Nf3 Bd6 Ne7 Re8 Nec8 Re6 Nb5 Bd5 Rbg4 Bb8 Nbd4 Bc4
2B2r1b/1BQ2Q2/rp1q1R1B/1Kr1BrRN/4N3/BP5p/kq2RBb1/3n2q1 w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Na6 a5 Nc5 a6 Nb7 axb7 Qd6 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 e5 b8B h5 g4 a5 d4 a4 f4 a3 b3 a2 f6 e4 f5 h3 f7 h2 g5 h4 f6 e3 g6 h3 g7 e2 Bh6 e1Q Kb5 Qe3 Qh5 Rh7 Nd2 Ra4 Re1 a1Q Bg2 Ra8 Re2 Be7 f8R Rh8 f7 Nf6 g8B Bb7 Qf3 Ra6 Ne4+ Kd7 d6 c5 d5 c4 Bh7 c3 Rg8 c2 f8B c1R Rg5 Ng4 Qf7 Nf2 Bg6 Qc7 Bf5+ Kd8 d7 Qd6 Be6 Bf6 Bf3 Nd1 Beg4 Qde5 Ba3 Rf8 Be6 Q5f4 Be5 Bh8 Beg4 Qf6 Bf5 Qd6 Be6 Kc7 d8B+ Kb8 Bc8 Ka7 Bdf6 Qa2 Bg3 Qad2 Bfe5 Qb2 Bf2 Qed4 Nf6 Qg4 Nh5 Rc2 Be4 Qg3 Nf3 Qg1 Nd2 Rc5+ Kb4 Qe1 Rhg1 h1R Rf1 Rg1 Bh1 Rg3 Bg2 Rf3 Bh1 Rf5 Bg2 Qe6 d6 Qd5 d7 Qd6 Bh1 Bg2 d8Q+ Qe7 Bd7 Qd6 Qde7 Kb7 Bc8+ Kc6 Qa7 Nc3 Ne4 Qec1 Qfe7 Nd1 Qac7+ Kd5 Bh2 Qe3 Qf7+ Kd4 Be5+ Kd3 Bh4 Qg1 Bf2 Rc4+ Kb5 Rc3 Ree1 Kc2 Re2+ Kb1 Neg3 Ba8 Bhb7 Ka2 Ne4 Rc5+ Kb4 Qd3 Bd5 Raa5 Be3 Qa6 Neg3 Rf6 Rff5 Bb7 Bf2 Qd3 Bh1 Ra6 Rf3 Rc4+ Kb5 Qd6 Rff5 Bg2 Rf4 Bf1 Bhb7 Bg2 Ne4 Rc6 Rfg4 Rf3 Rf4 Rc2 Rf6 Rf5 Be6 Rc4 Bec8 Rc5+
R1KQ1r2/3b2nq/2pR1npB/q3Q1qN/R3QbRn/R2B2N1/1RP5/2n3k1 w - - 0 1 legal: proof: g4 e5 d4 a5 dxe5 b5 a4 g6 axb5 Ra6 g5 Re6 h4 Re7 h5 f6 h6 Rg7 hxg7 fxg5 Bf4 g4 Bg5 Ba6 Bc1 Bc8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 h5 b4 d6 f4 g3 e6 Kg4 e7 h4 e8Q a4 f5 h3 e4+ Kh4 f6 a3 f7 h2 e5 g2 e6 Kg3 b6 Kf2 e7 a2 b5 Ba6 Ke6 d5 b7 c6 b6 d4 Ne2 g1N Ng3 d3 Nc3 d2 Nd5 Ne2 Nf6 Nh6 g8R Nd7 b8Q Bd3 b7 Nf5 Qe5 Bh6 f8R Nh4 b8R Bf4 Nfh5 Nf6 Rg1 h1Q Rb2 Qa5 Kd6 Bc4 Qd8 Qb5 Kc7 Bf7 Kc8 Be8 Qd3 Qa5 Qde4 Nd4 Bd3 Ndf5 Rf7 Qg2 Rgg7 Rf8 Rg8 Ng7 Rh8 Nh7 Rf6 Qh1 Rd6 Nf6 Rb3 Qg2 Ra3 Qh1 Rb1 a1N Rb2 Nb3 Rh7 Bf7+ e8R Qh3+ Qg4 d1Q Qd7 Qdd2 Ra4 Qh2 Qd8 Qe3 Bd2 Nc1 Rh8 Qec5 Re7 Qd5 Ra7 Be8 Ra3 Qb6 R7a4 Qba5 Nf5 Qdc5 Rg4 Qh1 Nfg3 Kg1 Qee7 Qg5 Q7e5 Ngf5 Rh7 Qh2 Ra7 Ng7 Ra6 Qf2 Ra8 Qfa7 Rab4 Qf7 Rc4 Qg8 Rca4 Qh7 Kb7 Qgh6 Qb5 Be5 Kc8 Qe3 Qbd5 Qec5 Bh6 Bf4 Qde6 Qg5 Q6e5 Bd7+
5bbK/4Qp2/1QrBQ3/p2rRP1Q/1b3k2/5nNQ/1br1BN2/1NRn1Q1b w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 c6 e4 Ba6 h4 gxh4 d4 Qb6 d6 Kd7 e5 Ke6 d7 Qc7 d5+ Kf5 Ke2 Bc8 Ke1 Qd6 exd6 Kf6 Kd2 Kg5 Kd3+ Kf5 Kd4 h5 d8Q a5 f4 h3 b4 h4 g4+ Kg6 Ke5 e6 g5 h2 f5+ Kh7 b6 c5 d7 c4 b7 c3 d6 h3 b5 c2 b6 Ra6 Qe7 Nf6 d8Q Ne4 d7 Nf2 Kf6 e5 Be2 e4 Bf4 c1B Qde8 e3 d8Q Nc6 b8Q Bb7 Qf1 Nd4 Bd6 Nf3 g6+ Kh6 g7 Nd1 g8N+ Kh5 Qdc7 Kg4 Qc3 Bb2 Q8d7 Ba8 b7 Rc6 Qde6 Rh5 Qbe8 Rh4 b8Q Rh7 Ba6 e2 Qb6 e1B Ne2 Rg7 Ng3 Bd2 Rg1 h1R Qeb8 h2 Be2 Bb7 Rg2 Rg1 Rf2 h1B Q8c7 Rh7 Qcd8 Rh2 Nh6+ Kh4 Ng4 Rhg2 Qcd4 Bb4 Qc3 Rh2 Bc4 Rgg2 Re2 Rh3 Re5 Rc2 Nf2 Ba8 Nfe4 Kg4 Nf2+ Kf4 Be2 Rh2 Qdd7 Rd2 Qde8 Rd5 Q8c8 Bh6 Qh8 Bf8 Qh5 Bb7 Qfh3 Ba6 Qe1 Bd3 Bf1 Be2 Qg6 Rc2 Nd2 Nh4 Ng4 Rc4 Rc1 Rc6 Nb1 Bef3 Bb5 Rf2 Qef1 Rfc2 Nf2 Bh5 Be2 Nf3 Qh7 Bg6 Q7h5 Bh6 Qg1 Bh7 Qgf1 Bg5+ Kg7 Bh6+ Kh8 Bf8 Q6f6 Bg8 Qfh6+ Ng5 Qhe6 Nf3
Kn6/2b4k/2bB1npN/4r1r1/Br3nPb/R4BQp/B3RBR1/1rB3QN w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf8 h6 Qd6 Nf3 Qe5 Ng1 Qg7 hxg7 Be6 Qa4 Bg4 Qd1 Bc8 Kf2 h5 Kf3 a5 Ke4 c5 g4 c4 b4 f3 d4 a4 d6 f5+ Kd5 Kf7 e4 c3 d7 f4 d8B h4 b6 a3 b7 a2 e5 h3 b5 f2 b6 f3 e6+ Ke8 e7 Kf7 Rh2 c2 Nd2 Rh6 Nb3 Nc6 b8Q Na5 b7 Kf6 e8B+ Be7 Bg2 f1N Ba4 f2 Bb6 Bf5 Qg3 Kf7 b8B Rh7 Ne2 Bh4 Bd6 Re8 Bf3 Bd7 Rg2 Ne3+ Kc5 f1R d5 Rh6 Nbd4 Bc6 Nf5 Rh5 Nh6+ Kf6 Ba7 Rg5 Kb6 Ree5 Qde1 Rf2 Qg1 Rf1 Ka6 Rd1 Bb6 Rd4 Ka7 Rb4 Bbc5 Nd1 Bf2 Nb2 Nc3 Nd3 Nd1 Be8 Ka8 Nc6 Be2 Nf4 Bf3 Nge7 g8B Kg7 Bb6 Kh8 Nf2 Nb8 Nh1 Bb5 Bf7 Ng8 Bf2 Be8 Bdc5 Kg7 d6 Kh7 d7 Nf6 d8R Bb5 Rd2 Bd7 Bb2 c1R Re2 Rb1 Bc1 Be8 Bd6 Bc6+ Ka7 Rb7+ Ka8 R1b4 Rb1 a1B Rb3 Bd4 Be6 Bb6 Ra3 Bc7 Bed5 Rb1 Ba2 R7b4+
N2Rn1b1/RN2pbr1/1B1B3b/Q1K2kq1/4bNr1/1N3p1B/2RNP3/1R4rr w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bb7 g5 Bc8 h5 Nc6 Ra6 Ne5 Ra1 Ng6 hxg6 Bb7 Bg2 Ba6 Bf1 Bc8 Kf2 Kd7 d4 f5 b4 h5 g7 c5 g6 a5 d6 Ke6 b6 a4 b7 c4 b8B f3 Ke3 a3 b5 c3 b6 c2 d7 h4 d5+ Kf6 Kd4 h3 d6 h2 b7 f4 Nh3 a2 Qe1 f2 Kc5 f3 Nf4 Qe8 d8R Be6 d7 Rh7 Bd6 Kf5 b8N Bf7 Qa5 Nf6 g8R Bh6 Na6 Rg7 Nc7 Ra6 Rg1 h1B Na8 Bg2 Be3 Bh3 Nd2 Ra7 Rb1 a1R Nb3 Bg4 Rb2 c1R+ Rc2 Ra4 Bh3 f1B Rh8 Qg8 Bf2 Rca1 Rh1 Bg2 Rb1 Ne8 Be3 Kg5 Bg1 Bf5 Be3 Be4 Bg1 Rh7 g7 Rd4 Be3 Rd1 Bf2 Rg1 Be3 Rb7 Bd4 Rb4 Bf2 Qf8 g8N Qg7 Nf6 Qg6 Bd4 Rg7 Be3 Qh5 Rg8 Qg4 Bf2 Kf5 Bd4 Bd3 Ne4 Rba4 Ned2 Be4 Rc8 Rb4 d8N Rba4 Nb7 Rh1 Rbb2 Rag1 Rb1 Bf1 Bg2 Qg5 Rc7 Ra1 Bh3+ Rg4 Rc6 Rg1 Ra6 Rh1 Ra7 Bg2 Rbb2 Rag1 Rb1 Nc7 Nd5 Be8 Rcc1 Kg6 Rc2 Rg3 Bg4 Bh3 Kb6 R3g2 Bd7 Be6 B4c5 Rg3 Nf4+ Kf6 Rh8 Bh5 Rb8 Bg8 Bh3 Rg4 Rd8 Ne8 Kb5 Kf5 Bb6 Bg6 Kc5 B6f7
B2b4/RbR2NN1/1B1R1pPR/1Qp1n3/3b2Q1/N1kn1nr1/2p5/RRq2r1K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Ke7 b4 Ke6 d4 Kd5 e4+ Ke6 g4 h5 Kg2 a5 g6 f6 b6 c3 g7 h4 g5 c6 g6 a4 d5+ Kd7 e6+ Kd6 e7 Ke5 e8N c2 b7 a3 b5 a2 d6 Ne7 g8R Na6 b8Q Nf5 d7+ Qc7 d8R Bb4 b6 Ba5 b7 Nc5 Ng7 Nd7 Nh3 Nd4 Ng5 Nf3 Na3 c5 Bd2 Kd4 e5 Qd6 e6 Qf4 e7 Qe3 Rh2 h3+ Kh1 Qe1 Qe2 Qc1 e8R Rh5 Bf4 Kc3 Nf7 Rf5 Bc7 Nde5 Re7 Rg5 Rgf8 Rg3 Rd6 Ra6 Rg8 Rb6 Rh8 Rb1 Rh6 Bb6 Qe4 Ba5 Rhd2 h2 Qg4 Bb6 Rd1 Ba5 Bg2 Bb6 Qa8 Ba5 b8R Bb7 Rc8 Bb6 Bb8 Bd8 Rcc7 Rb3 Rb1 a1B Qa5+ Rb4 Qb6 Rf4 Rg1 Bc6 Qc8 Ne1 Ra7 Qd1 Bd5 Kd2 Rb4 Bd4 Qg4 Kc3 Bc7 Rff3 Rf1 Bg1 Qb5 Rf2 Bb6 Ba8 Qc8 N1f3 Rec7 Qb1 Rd1 Rf1 Bc6 Qb2 Ra1 Qc1 Bb7 Nc6 Rbb1 Nce5 Ba6 Bc6 Bb7 Bd5 Ba8 Bb7 Qa6 Rh3 Kg2 h1N Qd7 Nf2 Qab5 Nfd3 Qg4 Rg3+ Kh1 Bd4#
1B1b4/2rQ4/p2P1r1R/N1N2N2/p1q1Rp1R/r1nR2Q1/k1nR2B1/1R3bKn w - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Nh6 fxe5 Ng8 a4 bxa4 Kf2 Kd7 e4 c5 d4 f5 b4 g5 h4 c4 b5 c3 e6+ Kd6 h6 g4 e5+ Ke7 b6 c2 d6+ Ke8 h7 a6 d5 Bd7 h5 Be7 h6 Bc6 b7 Qa5 d7+ Kd8 Na3 Kc7 d8R Kb6 Nf3 Kc5 Qe1 g3+ Kg1 g2 Rh3 Bf6 e7 Qb4 e8Q Qb2 e6 Qc3 e7 Kb4 Qg3 Kb3 Bf4 c1R Nc4 Bb5 Nh4 Nc6 b8N Nd4 Qd7 Nc2 e8R Ne7 Rb1+ Ka2 Na5 Qc4 Bc7 f4 Nf5 Rf8 h8R Ra7 h7 Rb7 Bd6 Rc7 Rh6 Rf7 Rhf8 Bh4 h8R Rf6 Rfg8 Re1 Rg4 Bg5 Rgh4 Re3 Rh2 Rb3 R6h4 Ra3 R8h6 Nc8 Re4 Nb6 Kf2 g1N Bg2 Ne2 R2h3 Nc1 Kg1 Ne2+ Kh1 Qd3 Qe6 Rd7 Qf3 Ng3+ Kg1 Rg6 Qe8 Rb7 Nd7 Nh1 Bb8 Rc7 Nc5 Rgc6 Rdd6 Bd8 Qd7 Qb3 Qg4 Bf1 Rhe3 Qc4 Qg3 Nc8 Re2 Na7 Rd2 Nb5 Re3 Nf2 Rde6 Rb6 Red3 Nc3 Re4 Rf6 d6 Nh1
1n2N3/1nN3pk/1NRq4/1r1Qb1RN/5R1K/P1p1R2B/1p2BB1r/2rb1b1N w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 c5 Kg3 f5 h4 Kf7 e4 b5 d4 c4 h6 Kg6 d6 c3 d5 b3 h5+ Kh7 e6 b4 e7 b2 e8B b3 d7 Bb7 a3 Bc5 e5 Ne7 e6 f4+ Kh4 f3 d6 f2 Be3 Nd5+ e7 Qa5 d8R Nd7 Be2 f1R Nd2 b1B Nh3 b2 Rg1 Bd4 Nf2 Bc8 Nc4 Ba2 Nb6 Nb8 d7 Qa4 Rg5 Nf4 Nh1 Qc6 Bf2 Bb7 Rc8 Ra4 d8N Nd7 Ne6 Bc5 Qd5 Ba8 Nc7 Nf8 Re1 Bc4 Bd7 Rb4 e8N Bd6 Bh3 Rg1 Rf1 Nd7 Re1 Nb8 Rf1 Ne6 Re1 Kg8 h7+ Kf8 h6 Rb5 Rf1 Nc5 Re1 Be5 Rf1 Rg8 h8N Nb7 h7 Qd6 Re1 Bb3 Rf1 Bd1 Re1 Qe6 Ng6+ Kf7 Rf1 Rh8 Nf4 Kf8 Nh5 Kf7 Rf5+ Kg6 Re1 Qd6 Rf4 Rf8 h8R Rf6 Rf8 Kh7 Rf7 Rg2 Rg4 Rh2 Rg5 Rf3 Rf4 Re3 Bf3 Re2 Bg4 Rc2 Re3 Rc1 Be2 Nc5 Qc4 Bg2 Qd5 Nb7 Ne6 Nd7 Rc6 Nb8 N6c7 Bf1
Qnk2N1b/6p1/1B1r2p1/n5NB/BbBR4/1N1PR1p1/B1K2Qrn/2Bb3q w - - 0 1 illegal: Other
1b4K1/k3P1B1/N3pBRn/2b3N1/1BN1Rr1n/Rq4p1/Q1p1N1b1/1B2r1Nr w - - 0 1 illegal: No proof kernel
2RNQQ1K/1Qb1p2b/qB6/1Br1Q3/2B3k1/1Qn1PN1R/1r2p1p1/n2r1b1Q w - - 0 1 legal: proof: g4 c5 d4 h5 gxh5 b5 dxc5 f5 a4 f4 axb5 f3 e3 Nf6 Qe2 fxe2 Kd2 Ng8 Kd3 Kf7 Ke4 Kf6 h4 g5 b4 a5 c4 d6 f4 a4 c6 a3 c7 g4 c5 a2 f5 g3 b6 Qd7 h6 Ra3 b7 Ra8 h7 Ra5 h5 Kg5 b5 Qe8 b6 Nc6 b8Q Ra3 b7 Ra6 h6 Qd7 f6 Ra3 f7 Na5 c6 Qe8 Bg2 Qd7 Nd2 Ra4+ Nc4 Ra3 Ne5 Rb3 Bb2 Rb6 Bd4 Bg7 f8Q Qh3 Rc1 a1R Ngf3+ Kh5 Nf7 Kg4 Nd8 Qh5 Rh3 Rb2 Bb6 Be5 Rc3 Bd7 c8B Rd1 c7 Nb3 Rc2 Be6 Bd7 Na1 c8Q Qh4 Bb5 Qf6 Qa7 Bd7 b8Q Qe6 Qf6 Qa2 Qc3 Qa6 Qab7 Be6 Qd3 Bf4 Qe5 d5+ Kd4 Nf6 Rc8 Re8 h8Q Ne4 h7 Nc3 Qf8 Bd7 Kc5 d4 h8Q Be6 Qc4 d3 Qb3 d2 Kc6 Bd5+ Kd7 Bc6+ Ke6 Be4 Qef6 Bc7 Kf7 Bf5 Kg7 Bh7 Nc6 Rd8 Q8a8 Rd5 Nd8 Rc5 Qe5 Be4 Qe8 Bh7 Qhf8 Be4 Ng1 Bd5 Bh1 Bg2 Kh8 Bf1 Bd5 g2 Bdc4 Rc1 Qab8 d1B Nf3 Bc2 Qh2 Bh7 Qh1 Bf4 Qe5 Rd1 Qef6 Bb8 Qe5 Bc7
5brQ/2RKpR1N/Bp3Pn1/1p1B4/b2Nn2B/1Bq5/2R1Nr1r/kN4Bb w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 a6 h4 Nf6 hxg5 Ng8 b4 Nd7 b5 axb5 Rh5 Nb8 Rh2 Qd6 Rh1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 c6 f4 h4 a4 h3 a5 h2 f6 Rh4 f5 Rh3 g6 Rc3 g7 Qc7 a6 Bd7 a7 Rc5 g5 Be8 f7 Qd7 g6 Na6 f6 Qd8 Ra2 Qb8 Qh5 Bd7 Qh8 Qd8 Ne2 Nh6 g8B Be8 g7 Qc7 Rc2 Rb8 a8B Kd7 d6 Ke6 d7 Rg5 d8N+ Kf5 Ne6 Nc5 d3 Rg6 Bg5 Ng4 Bh4 Ne4 Rg1 h1B Rg2 Nd2 Kc5 Rh6 d4 Ke4 d5 Kd3 d6 Ne5 d7 Ng6 d8B Qg3 N6d4 Ne4+ Kb6 Qe1 Kc7 Qc3 Rg5 Rh5 Re5 Rf5 Rd5 Rf2 Rd7 Kc4 Bh7 Kb4 g8R Rh2 Rg7 Ka4 Nd2 Ka3 Bg8 Rf2 Rc1 Ka2 Rc2+ Ka1 Nb1 Rh2 Rh7 Bg7 f8N Bh6 Nfe6 Bf8 Ng5 Qh3 Ng3 Bg7 Rf2 Bf7 Ndf3 c5 Bc4 Be6 Rg2 Bg4 Bgd5 Bh6 Rf7 Bg7 Ba2 c4 Nh7 c3 Rd2 c2 Bac4 c1R Rb2 Bf5 Ne2 Nc5 Ba2 Bc2 Bac4 Ba4 Bb3 Rf1 Rc2 b6 Bab7 Bh6 Nfd4 Rg2 Ba6 Rff2 Kc6 Ne4 Bc7 Bg7 Bh2 Rg8 Bg1 Rh2 Rc7 Qc3+ Kd7 Bf8
3Q1n1b/3p1r2/pRN3Bq/Qbn2pQ1/1nbr2PB/1B5k/K7/N1B1BR1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 b4 Ke6 g4 f5 e4 h5 c4 a6 Kc2 d3+ Kb3 h4 c5 d2 c6 h3 b6 h2 g6 Ne7 b5 Rh6 g7 Qc7 b7 Qa5 b6 Qb5+ Ka2 Ng8 c7 Rh7 Qa4 d1N Bc4+ Qd5 Ne2 Rh8 Nd2 Nf2 Bb3 Ra7 Nd4+ Kf7 e6+ Kg6 e7 Kg5 e8Q Kh4 e5 Qe4 e6 Be7 Nc6 Rh7 Qa5 Kh3 Rb1 Bf6 e7 Nd3 Qd8 Qf4 e8B Nc5 Rf1 h1B Bg6 Ne7 g8Q Bh8 Qg7 Qe3 Qf6 Be4 Qg5 Rf7 Nb4 Nd5 Bd1 Kh2 Nb3 Kh3 Qf4 Nc6 b8B Nd4 b7 Bf3 Na1 Be2 Bc2 Qe8 Rb2 Qf8 Qfg5 Nde6 Ba4 Ra8 Ba7 Nb3 b8B Qh6 Bf2 Nf8 Bh4 Bb7 c8B Nc5 Bbg3 Rb8 Be1 Bc6 Bb7 Bd3 Bc2 Ba4 Ba8 Rb6 Bd1 Rd6 Bc6 Bc4+ Rb3+ Ne3 Bh1 Rd5 Nc6 Rd4 Beg3 Nc2 Be1+ Bd3 Rb6 Bc4+ Kb2 Nb4 Bb3 Bab5 Kb1 Nc2 Ka2 Nb4+
R1RB3R/rKpb4/2N2b2/1k2Pq1p/rbR1p1B1/3NBn2/Q1B1R1Nn/1n6 w - - 0 1 illegal: No proof kernel
r7/1p1kr2n/BRN1n1Nb/RR2Rr2/1B3PN1/R2p2K1/1bQp4/Q2b2qR w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 a4 e5 f4 g5 Kf2 d5 h4 d3 c4 d2 a6 d4 h6 g4 c5 e4 a7 e3+ Kg3 e2 f6 e1R c6 Re5 c7 Ba3 h5 Bf8 a5 Be7 f7+ Kd7 f8R Bf6 h7 Kc6 h6 Re2 a6 Re5 Ra3 Re6 Nc3 Qd5 Nh3 Re8 Qc2 Qe6 Na2+ Kd6 Nf2 Kd7 Nb4 Qe1 Nc6 Be7 Rf5 Bf8 Rb5 Re7 Bb2 Qc1 Bc3 Bg7 Bb4 Nf6 Be2 Rhe8 h8Q Rf8 h7 Bh6 Qg7 Qf1 h8N Nh7 Ng6 Rf5 Bc4 d3 Qa1 Ke8 Raa5 Nd7 Rb6 Qb1 Re5 Ndf8 Bb5 Be6 c8R+ Kd7 Bc4 Bf7 Reb5 Ne6 Re8 Rd8 a8R Qg1+ Kh4 g3 a7 g2 Ng4 Rb8 Kg3 Rd8 Rb8 Rc8 a8R Rd8 Raa5 Rc8 Nh4 Bh5 Rba8 Rb8 R8a6 Rd8 Ng6 Ra8 Nf2 Bd1 Ng4 Qd4 Ra3 g1B R6a5 Qg7 Rc5 Qg8 Ba6 Bd4 Re5 Bb2 Rf8 Rh5 Rff5 Qg7 Reb5 Qd4 Rfc5 Rf5 Re5 Qg1+
1qrRBB1b/1k2nRn1/1N1p3B/1NK3pN/1BNp4/3b1r2/R1P3B1/1n2Qq2 w - - 0 1 illegal: No possible last move, all moves rejected
Q2BB1b1/1B1Rq3/2p3NK/N1k1r1Rb/2n5/1BqBr1p1/p1R1B2P/1Q4bn w - - 0 1 illegal: No proof kernel
Br3b2/4R1n1/pbBpB3/1N1rB1Rq/4RR2/P2R3q/k1pNK1N1/3Qn1n1 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 e5 fxg5 Bh6 dxe5 Bg7 h4 Bf8 c4 bxc4 h5 Bb7 Rh3 Be4 Rh1 Bg6 hxg6 Bd6 Rh6 Bc5 Rh1 Bf8 b4 Ke7 e4 Ke6 g7 c5 a3 f5 b5 h5 g6 c3 g5 c2 b6 a6 b7 d6 Ke2 f4 Nh3 c4 Bb2 c1B Nd2 c3 Bg2 h4 Re1 Nf6 g8B+ Kd7 g7 Kc6 g6 Kc5 e6 c2 e5 Nbd7 b8N Ne8 e7 Qa5 e6 Rh5 Nc6 Rb8 Nd4 Ne5 Ba8 Nf3 Nb5 Rd5 Be5 Bb2 Rb1 Bd4 Rb3 Be3 Rf1 Ne1 Rd3 Qc3 Bh7 Bf2 g8B Ng7 e8R Qb3 Ng1 h3 e7 h2 Be6 h1Q Ngf3 Qh5 Bhg8 Bg1 Bd7 Bf2 Bdc6 Bd4 Be6 Qc3 Ne4+ Kc4 Rf2 Kb3 Nd2+ Ka2 Rf1 Qg5 Nh4 Bb6 Ng2 Qh5+ Rff3 Nf5 g7 Qb3 g8R Ng7 Rc8 Qc3 e8R Qb3 Kf1 Qc3 Rfe3 f3 Re4 f2 Re7 Qb3 Rce8 Qc3 Rg4 Qb3 Ke2 f1N Rf7 Qc3 Ree7 Nh2 Rf4 Nhf3 Rh4 Nf5 Rg5 Ng7 Re4 Qb3 Rhf4 Qc3 Bcd7 Qc8 Bdc6 Qd7 Bg8 Qdh3 Be6 Ng1+
R1RB1BB1/4r1Np/qP1B4/rB1p2kq/1BQ4N/n3R2b/npQ2b2/3Kn3 w - - 0 1 illegal: No proof kernel
B3Br2/1Nn1n1p1/1QB2R2/R1K1NNq1/1bbpPk1B/1r1qpNN1/6R1/7q w - - 0 1 illegal: No proof kernel
NnRB4/4pk2/4N1b1/1P1r1p2/rqB1RB1b/1n4qp/1N2RQbB/1KB2N2 w - - 0 1 illegal: No proof kernel
5rnb/B1R1pB2/5N1B/p2R2RK/3R3B/q1p1rb1Q/3q1NP1/Nk1n2bB w - - 0 1 illegal: Other
1BKBr3/3pRQ1N/2q3B1/br1pQQ2/q1pQ1b2/1QN2q1n/1Q1P1n1k/R7 w - - 0 1 illegal: No proof kernel
2qB1Q2/BNp1b1Rp/1B1rb2b/3B1q2/1rR2pRP/R2Kn2R/1N6/4knN1 w - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 g5 a4 d5 cxd5 Nh6 axb5 Ng8 f4 gxf4 Kd2 Kd7 g4 f5 e4 a5 b4 a4 h4 f3 d6 Ke6 g5 f2 d7 f4 g6 a3 g7 a2 b6 Qe7 d8B Ra4 b5 Ra7 b7 Bd7 b6 Qc5 Na3 Qb5 Nc4 Qa4 Nb2 Be7 Kd3 Nf6 g8R Ra5 Be3 Ra6 Bg2 Bc8 Rg4 Qe8 Rh3 Nbd7 b8B Nh5 b7 Ndf6 Bba7 Ng3 b8R Nf1 Rb4 Nd5 Rc4 Rd6 Beb6 Qg6 Qa4 Qf5 Qe8 Rg8 Qf8 Nde3+ Bd4 Rg6 Bh1 Rb6 Bf3 Rb4 Bdb6 Kd7 e6+ Kd6 Bh1 Ke5 Bf3 Bd6 e7 Be6 e8N Be7 Nd6 Rf6 Rb1 a1B Nb7 Rg6 Nd1 Bd4 Rb3 Bdc5 Bh1 Bg5 Bg2 Bh6 Ra3 Be7 Bf3 Ng3 Nb2 f1Q+ Be2 Qg2 Bd1 Ngf1 Bb3 Bd5 Ba2 Rd6 Rg7 Qgg5 Bb3 Qc8 Ba2 Ke6 e5 Qf6 Bb3 Kf5 e6 Qf7 Bd1 Ke5 Bf3 Qf5+ Be4 Bf6 e7 Be6+ Ke2 Bfg5 e8R Bf6 Bd5 Be7 Rc5 Kd4 Rg4 Bf6 Re7 Bfg5 Rg7 Bf6 Ra4 Be7 Rca5+ Kc3 Ra3+ Kc2 R5a4 Rb5 Re4 Kc1 Kd3 Rb4 Na4 Kd1 Nb2+ Ke1 Nc5 Qe5 Nb7 Qh5 Rc4 Qf5+
r5r1/2QN1B2/1Rr1n1B1/k2N4/1Nb4p/p2bBqNp/1K1n2BP/r2RB1R1 w - - 0 1 illegal: No possible last move, all moves rejected
2NnR1nK/1BR5/N2r1b1B/N1Np1r1k/3P1p1q/8/RN3p2/Q1BrRr1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 Bb7 axb5 Bc8 Kf2 f5 Kf3 Kf7 d4 a5 c4 g5 e4 d5 h4 a4 h6 Kg6 h5+ Kf6 b6 a3 b7 a2 h7 Na6 b8N Nh6 c6 Bb7 c5 Rg8 h8N Qe7 c7 Qd6 c8N Nb4 e5+ Kg7 c6 Ng4 e6 Kh6 c7 Na6 e7 Ra7 e8R Ba8 Nc3 Nc5 Ne4 Qe7 Na6 Rg6 Ne2 Rd6 N2c3 Nb7 Na4 Nd8 Nb2 Nf6 Nec5 Bc6 Ng6 Bb5 Ne5 Bg7 Nc6 Ng8 Na5 Bf6 Bd3 Ba4 Re1 Bc2 Bb5 Ra8 Bc6 Bd3 Bb7 g4+ Kf2 g3+ Kf3 Kg5 h6 g2 h7 g1R h8B Kh5 Bg7 Rb8 Bh6 Be4+ Kf2+ f3 Ke3 Rf1 Kf4 Qh7 Qa4 f2 Qa3 Bg5+ Ke5 f4 Qa4 Bh1 Qa3 Qe7+ Kf5 Bf6 Qc3 Kh4 Kg6 Nf7 Kh7 Kh5 Nb6 Qd8 c8R Qe7 Rc7 Nd8+ Bg7 Rc8 Kh8 Ra8 Nc8 Ra7 Rb1 a1R Re2 Be5 Rd2 Qh4 Re2 Bf6 Re1 Ra2 Ra1 Ra4 Ra2 Ra3 Qc2 Rd3 Qb1 Rd1 Qa1 Be7 Bh6 Bf6+ Rg7 Ra8 Bc6 Ra7 Ba8 Rf7 Bb7 Bg5 Rh7 Rf5 Rc7 Bf6+
BN5R/R3NNB1/b4r2/kPbNb3/5qQ1/pb3Rn1/Kp1r1p1B/Nn2R3 w - - 0 1 illegal: No proof kernel
n1nBB2r/2Q4R/nRNb2B1/P1B2qn1/rR6/2p1p2p/b1kB4/1NN1R2K w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Nc3 Kd7 d4 Kd6 a4 e5 f4 b5 Kf2 c5 g4 h5 Kg2 c4 f6 e4 g6 e3 f7 b3 g7 b2 a5 b1N g5 h4 f5 b4 g6 b3 f6 b2 Nge2 Qe8 Bd2 Nc6 Qc2 Nh6 g8R Qe6 g7 Na3 Re1 b1N Nc1 Rh7 Bd3 Qd7 Bg6 Nb5 Kg1 Be7 f8B Nf5 f7 Nb8 Rh3 Qe6 Kh1 Nc7 Rh2 Nba6 Rh3 Na3 Nb1 Nab5 Rh2 Na7 Qc3 Kd7 d6 Kc6 d5+ Kb5 d7 Ka4 d8N Nd4 d6 Nf3 d7 Ng5 Qe5 c3 Nc6 Ba3 Bd6 Rb8 f8R Rh8 Rf4+ Rb4 Bf8 Na8 Qc7 Qf5 Be7 Nc5 Re4 Ba6 Rb8 Bc4 g8B Na6 d8B Nc8 Rb6 Ba2 B8f7 Rd4 Be8 Rb4 Nd3 Kb3 Nc1+ Kc2 Rf4 Ra4 Rh3 Bd6 Rfb4 Bf4 Bc5 Bd6 Rf3 Qd3 Rf7 h3 Rh7 Qf5
1rN2b1N/1R2NN2/Pqb2bBr/p2n4/pBQ5/1Qb2N1k/np3R2/1N3KB1 w - - 0 1 illegal: Other
k1B1r1qB/N3b2p/K3R1R1/2Q1Q1Q1/1n1pRQQn/N5p1/3rP2r/2r2b1Q w - - 0 1 illegal: No proof kernel
RQn1r3/QB1n2p1/1nN4k/2bq2RP/1B4b1/2Krp2p/2QnQ2Q/QN1B4 w - - 0 1 illegal: No proof kernel
Q1K1RR1n/r3NpkB/1B4pb/2BB4/p1bNb3/1Pb3qr/6Q1/1R1n1BB1 w - - 0 1 illegal: manual,
1 pxp capture on each of ab,cd,ef,gh. White cannot promote to bishop on h8, since g7-g6 blocks Ng6-h8. Thus White needs a wDB promotion on d8, leaving only e8 for both wLB promotions. But this leaves Black without bLB promotion.
1n6/NBn1Pp1r/B2RBBkp/K7/pNQ1N3/2qr1R1b/3B1R1b/n2R2n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 c5 b4 a5 g4 f3 d4 f2+ Kd2 h6 Kc3 c4 d6 a4 d5 Bg7+ e5 Ba6 d7+ Kf8 g6 Qg5 d8B Ra7 b6 Rd7 b7 Qh4 d6 Rc7 d7 Nf6 g5 Qg4 e6 Qg3+ Qd3 Qh2 b5 Rc6 Kb4 c3 b6 c2 Nh3 Rc4+ Ka5 Rc6 Ra2 Qf4 Na3 Qg3 Qc4 Qf3 Nb5 Rg8 Na7 Nh7 Bf6 Qa3 Bd2 Qe7 d8R+ Qe8 Rd6 Rh8 e7+ Kg8 Bg2 c1N Rd1 f1N Nf2 Qd8 Ne4 Bf8 g7 Ne2 Ra3 Ng1 Rf3 Qc8 Bh1 Nd7 b8R Ne3 b7 Nc2 Bg2 Bb5 Bh3 Na1 Be6 Rc5 Rf2 Qc6 Rc8 Rd5 b8N Rd3 Na6 Qc5 Nb4 Nb8 Rc7 Qe3 Rc5 Bc6 Rcf5 Bd7 R5f3 Bc8 Bb2 Nf6 Bbc3 Kh7 g8B+ Kg6 Bh7+ Kh5 g6 Nd5 g7 Nc7 g8B Bg7 Bf6 Qd4 Bhf5 Qc3 Bgh7 Bd7 Bh3 Bc8 B7f5 Rh7 Bf1 Bd7 Bg4+ Kg6 Bd5 Bh8 Bb7 Bc8 Be6 Bd7 Bfg5 Be5 Bf6 Bh2 Qd4 Re3 Bfa6 Rd3 Qc4 Bc8 Bed5 Bg4 Be6 Bh3
KRN2r1B/R4b2/3Rq3/p3RN1B/P1R1QN2/pNn1bb2/4B1np/2n1k1q1 w - - 0 1 illegal: No proof kernel
1RnrBN2/1pB2b2/Rp5q/1KN5/1N1QBRNB/2qqbbN1/1P1p4/4kr2 w - - 0 1 illegal: No proof kernel
5Qb1/Kr3pRp/1R2Q1b1/B1b1bP1B/BNn3N1/2b1BN2/B2p4/2q2knB w - - 0 1 illegal: Other
n1Q1N2n/b1NNr3/B2bRp2/pN2R2p/K1BB1Pk1/2Q4N/2q2b1n/3b3N w - - 0 1 illegal: No possible last move, all moves rejected
2bb1Q2/rB4p1/3p4/2NNn1kq/KR4Pn/QN4R1/1Npn1Rn1/b3N1BN w - - 0 1 illegal: No proof kernel
2nr2BR/NnN2K1p/6BP/1B6/N1qp2q1/2pR1bk1/Qb1R2q1/N1B2q1B w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 d4 g5 dxe5 Nf6 a4 Na6 f4 gxf4 b6 Nb8 b5 Ra6 b7 Rc6 b6 Ng8 Qd5 Rc5 Qd1 Rb5 axb5 a4 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 Kg4 h4 c5 e4+ f3 h5 f5 e6 f4 e7 a3 e8B c4 e5 a2 h6 d6 e6 Qd7 e7 Nc6 b8N Qb7 Qb3 f2 Na3 f3 Rh2 Nd4+ Nc6 Kg3 Bg6 Ne6 e8B Qa6 b7 Qa8 b8R Nc5 b6 Na4 b7 Bd7 Ne2+ Kg4 Nc3 Qa6 Na7 Bc8 Bb5 Bg7 Nc2 Nc5 Na4 Bb2 g3 c3 Bg2 f1Q Bh1 Qd1+ Rd2 f2 Ra8 f1Q b8N Kh3 g4 Kg3 g5 Qg4 Rb1 Bf5 Na1 Nb7 Qc4 Bc2 Qb3 Bd1 Rd3+ Qgf3+ Ke6 Ne7 Qc4 Qc6 Na6 Rd8 Nc7 Qg2 Rd2 Qfe4+ Kf7 d5 Rb8 d4 Rc8 Rd6 Rh8 Bf3 Qe6 Qc4 Rd3 Ba3 Rb2 Qg4 Rbd2 Rd5 Bf5 Rd8 g6 Bb2 g7 Nc8 g8B Nb6 Bg6 Nc8 Nc2 a1Q Qd5 Qaa2 Na1 Qab3 Qe6 Qd1 Qd5 Qdf1 Qe6 Qb4 Qa2 Qc4+
4NB2/bQ2N1BQ/4p1p1/1BnBPpq1/B4NR1/3qrb2/bKb2R2/r2Bk3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e6 dxc5 Nc6 b4 axb4 f5 Nce7 f6 Qb6 Bb2 Kd8 fxe7+ Kc7 Ba3 Kc6 Bc1 Qd8 Kd2 Kd5 e8N Ke4 c4 f5 Kc2 d5 h4 b5 a4 b3+ Kb2 b4 a5 g6 h6 d4 c6 d3 h5 d2 h7 Ke3 h6 Kf2 e4 Qd4+ Nc3 Ra6 c5 Bg7 c7 Bd7 c8B Qf6 e5 Ba4 c6 Qe7 c7 Bf6 Rh4 Bd7 Rg4 Rd6 a6 Bc6 a7 Bh1 a8B Rd8 Bcb7 Bh4 c8B Rd7 Ra2 Bf3 Nd5 Qg5 Ne2 Nf6 Nef4 Ne4 Bb5 Nc5 Qh1 d1B Ne7 Rd3 Bd5 Re3 Bcd7 Bc2 Ba4 Rg8 h8Q Rg7 Qg2+ Ke1 h7 Bf2 Bdb5 Rf7 Qg8 Rg7 h8B Bg1 Nc6 Ra7 Ne7 Ra6 Qh7 Ra5 Ka1 Ra7 Bg7 Bf2 Ra3 b2+ Ka2 b1B+ Kb2 b3 Ra2 Ra6 Bac6 Ra5 Be2 Ra6 Bcb5 Bg1 Bd1 Ra8 Ka1 Ra7 Rb2 Ba2 Qgh1 Bd3 Rd2 Bc2 Kb2 Ra6 Rf2 Ra5 Ka3 b2+ Bb3 Nd3 Nc8 b1Q Bh8 Re4 Rh2 Be2 Bg7 Ra7 Qg2 Rb7 Ba6 Ba7 Be3 Rbb4 Bc5 Re3 Qb7 Bf3 Bd5 Bcb3 Bcf8 Nc5 Ne7 Qd3 Rf2 Rc4 Kb2 Rc1 Bac4 Ra1 Bcb5 Bc2
1KBB4/1n1RbR2/2Q4p/1R2Bp2/pr3N1N/PbbqQ3/Bb1B1B2/2qkn3 w - - 0 1 legal: proof: e4 b5 c4 bxc4 f4 a5 h4 d5 exd5 g5 hxg5 Be6 g4 Kd7 f5 Ra7 g6 Ke8 g7 Ra6 g5 Rb6 Rh2 Bc8 Rh1 Rg6 fxg6 Bb7 Ne2 Ba6 Ng1 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 d6 f5 a3+ Kb5 b4 h6 d7 a4 d5 e6 d6 Ne7 g8B Rh7 g7 Na6 g6 Bb7 Qb3 Bd5 Nc3+ Kb6 b5 Ka5 b6 Qc7 d8B Qd7 Rb1 Nb4 Nce2 c3 b7+ Kb5 b8B c2 Qe3 Kc4 Bd2 c1B Bb6 Nc8 Nf3 Be7 Nh4 Nc2 Rb5 Ne1 B8c7 Qd8 d7 Nd6 Bf7 Nb7 g8R Rh8 g7 Rh7 Rf8 Bb2+ Bc3 Rh8 g8Q Rh7 Qgg1 Rg7 Ba7 Rg4 Qg2 Rd4 B7a5 Rf4 Bb4 Kb3 Bg8 Kc2 Rf7 Rg4 Nf4+ Kd1 Rh2 Bc4 Qc6 Bb3 Bd3 c4 Rd2+ Kc1 Bcd4 c3 Bb1 c2 Ba2 Qa5 d8B Qa6 Ra5 Qc4 Rb5 Qe2 Rd3+ Qd2 Bdc3 Kd1 Rd7 c1Q Bcd4 Qd3 Bd2 Bc5 Kf6 Bb4 Be5 B4c3 Ke7 Bb4+ Bd6 e5 Bac5 e4 Be5 B4c3 Bcd4 Na5 Kd6 Nb7+ Kc7 Bb4 Qg1 e3 Kb8 e2 Bf2 Be7 Qg3 Ng2 Qe3 e1B Nh5 Rb4 Nf4 Qdc2 Rh7 Q2b1 Be6 Qd3 Rf7 Qcb1 Bc1 Bec3 Bd2 Ne1 Rd4 Na5 Bc8 Nb7 Rd7 Qc1
2R1Rr1k/1R1B3B/N2N1p1b/1p1QB2p/r5N1/bb3BPp/4BNnq/n6K w - - 0 1 illegal: No possible last move
3B1K1n/Q2QN3/Rp1bnQ2/QN1ppB2/1P1R4/NQb2pQ1/5q1r/3b1kr1 w - - 0 1 illegal: No proof kernel
2Q1n2n/5b1p/R2pNnRr/BBRB3P/N2b1q1p/2RQ4/3pK2k/R1r2R2 w - - 0 1 illegal: Other
k2B1Q1B/bNB4p/1b1pP3/1r1b1Q2/R2n3K/B3Bp1B/r1qp1N2/1n1R2R1 w - - 0 1 illegal: No proof kernel
N1R1Q1rb/5bPr/1B4kn/2K3N1/1p2NbQp/n1qp4/2B2Np1/N3BRN1 w - - 0 1 illegal: No proof kernel
2bNN2B/r1Bkp1bR/2N2qR1/6K1/2nBP3/Bp3N1p/n3p2r/1R1Q2Br w - - 0 1 illegal: No proof kernel
7N/B1B2p1b/bB1B1ppk/NnRnn1R1/QqB2N2/p1R2P2/7r/R1b4K w - - 0 1 illegal: No proof kernel
2QB2N1/3r2BR/1N3b2/2RNkpR1/2R1B1p1/pn1q3p/1NNn1nrP/2q1K3 w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 f6 a4 Na6 axb5 Nb8 f5 Be6 g4 Kd7 g5 Bf7 g6 e6 gxf7 exf5 Qb3 f4 Qc2 Bd6 Qd1 Bf8 b4 Kd6 d4 g5 e4 c5 e5+ Kc7 b6+ Kd7 e6+ Kd6 b5 a5 e7 h5 e8N+ Ke7 d6+ Ke6 d5+ Ke5 d7 a4 b7 f5 b6 g4 d6 a3 Bg2 h4 Nf6 f3 Qc2 h3 Bh6 c4 Nd2 c3 Nd5 Ra5 Ne2 Rh7 Rc1 Qf6 d8B Qg5 d7 Ra6 Bg7+ Ke6 Nc4 Be7 f8R Qg6 Nb2 Nf6 Rf7 Nc6 b8R Ne4 b7 Bf6 Nd4+ Ke5 Ra8 Qg5 b8N Rb6 Ra7 Rb4 Rf8 Na5 Rg8 Nb3 Rf1 Kd6 Rf2 Nbd2 Re2 Nf2 Re5 Nb3 Rc7 Qh4 Rc4 Qh6 Re7 Qe3+ Kf1 Rh6 Bh8 Rh4 Rc8 Rc4 Ba5 Nh1 d8N f2 Nd7 Qh6 N8c6 Qd2 Bd8 Rh7 Rg5 Rc5 N7b6 Qd3+ Re2 Ra7 Nce7 Rd7 Ng8 Rcc7 Qd2 c2 Qc3 Rc5 Qc4 Rc6 Qa6 Rc3 Rc5 Rc4 Qc8 Rc3 Re1 c1Q Bf3 Rc2 Bg2 Qdd1 Re7 Re2 Reg7 Ke5 Rh7 Qd3 Bg7 Re3+ Ne2 Rg3 Bf3 Rg2 Rd1 Qe4 Nd4 Qeb1 Ke2 f1N+ Ke1 Nf2 Be4 Qbc2 Rh6 Qc4 Nc2 Qd4 Rh7 Qc3+ Ke2 Qc4+ Rd3 Nd1+ Ke1 Nfd2 Rc3 Qd3 R3c4 Nf2+
bbN1R3/2BnNpNN/2q2R1Q/8/n3N1rp/2pp1KRQ/B2P2n1/2kN3q w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 h4 g5 hxg5 Ke7 a4 Ke8 b6 Ke7 b5 Ra6 b7 Rf6 b6 Ke8 Nh3 Rf5 Ng1 Rb5 axb5 a4 Kf2 Ke7 e4 Ke6 g4 Ke5 g6 Kd4 e5 c5 g7 h5 e6 d5 g5 a3 e7 f3 e8N c4 g6 h4 Nc3 a2 Nge2+ Kd3 Rh3 d4 Rg3 Nc6 b8N Nf6 g8N Bh6 b7 Bd7 b6 Na7 g7 Bb5 Nc6 Qc7 b8Q Qf4 b7 Rh7 Nge7 Qd6 g8N Rh8 Ne4 Ba4 Qc8 Bf4 b8R Nb5 Ng7 Nd7 Bb2 Nc3 Na7 Bc6 Ngf6 Ba8 Nh7 Qc6 Qa4 Rg8 Qaa6 Na4 N2c3+ Kc2 Nd1 Bc7 Bh3 d3 Be5 c3 Be6 Bd6 Rb6 Bb8 Bc7 Nf8 Ke3 f2 Kf3 f1N Qd7 Ne3 Nac8 Ng2 Bd5 Qd6 Qh3 Nd7 Rab1 a1Q Ba2 Qd5 Rf6 Qc6 Rb5 Kc1 Re5 Qb1 Qb6 Qb4 Qe3 Qd4 Qh6 Qg1 Nd5 Qh1 Re8 Qb7 Nde7 Qc6 Ngf5 Rg5 Ng7 Rg4
1kB2K2/p1bpQ3/2rR3b/1nQbR1pq/1Qr3PN/1Q5N/4p1N1/1bBQQ3 w - - 0 1 illegal: No possible last move, all moves rejected
8/1n3n1B/bK1Rp2N/1pqR1N2/1Pk4q/QR1b1N2/1n1Q3R/R1N3B1 w - - 0 1 legal: proof: g4 g5 d4 b5 a4 d5 e4 f5 exf5 h5 gxh5 c5 c4 cxd4 cxd5 Rh6 a5 Rb6 axb6 e6 b3 Ba3 Nxa3 a5 b4 Ra7 Nb1 Rc7 Bb2 Rc1 Bxc1 Qf6 Ne2 Qe7 Ng1 Qd8 Ke2 Ke7 Kd3 Kd6 f4 a4 h4 g4 h6 g3 f6 g2 f5 a3 h5 a2 f7 Qd7 f8Q+ Ke5 d6 Kd5 h7 Na6 h8R Ne7 b7 Nc7 b8R Ng6 f6 Qf7 d7 Ne7 d8R+ Bd7 h6 Nf5 h7 Qe7 f7 Na6 Rb6 Ng3 Ne2 g1N Rh2 Qf6 Qd2 Qh4 Rd6+ Ke5 Bg2 Bc6 Be4 Nh5 Bb2 Ba8 Nc1 Bb7 Qfh6 Nh3 f8N Bc8 Qhe3 Ng5 Rh3 Nf7 Ng6+ Kf6 Ne7 Ke5 Nf5 Nf4+ Kc2 Bb7 Qa3 Nc5 Rb3 Nfd3 R8d7 Ba6 Rd5+ Kf6 R7d6 Nb7 Bc3 Nde5 Bb2 d3+ Kc3 Nc4 Kd4 Qh1 Qe1 d2 Bd3 d1B Nd2 Qh5 Nf3 Be2 Qd2 Qh1 Bc3 Nb2 Bc2 Bd3 Bb1 Nbd8 Bc2 Qh4+ Kc5+ Ne5 Kb6 Nb7 Ne3 Ke7 Bd4 Nf7 Bc5 Bc4 Be4 Bd3 Nf5+ Kf6 Rb1 a1Q Bg1 Qa2 Ra1 Qb1 Rb8 Qc2 h8N Qc4 Rg8 Qc3 Rg2 Qc8 Rh2 Ne5 Ne3 Ke7 Nf7 Kf6 Nh6 Nf7 Rh5 Ke7 Bh7 Kf6 Ng5 Ke5 Nef5 Bc2 Rc6 Bd3 Nf3+ Kd5 Rd6+ Kc4 Ne7 Bf1 Rhd5 Bd3 Nef5 Qc5+
1Bb1BB2/3P1nQ1/k3NB1R/N2q3q/3N2Rr/B2q1r2/1Q3Nq1/2q1K2b w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 f5 exf5 d4 c4 d3 h4 gxh4 b6 Be6 b5 Bc8 b7 Na6 Bxd3 Qd7 b6 Nb4 Be2 Nd5 cxd5 Bg7 Bf1 Bc3 Nxc3 Qd6 Nb1 Qd8 b8N a5 f4 h5 g4 e5 d4 c5 f6 a4 g5 a3 d6 h3 f7+ Kf8 d7 Ke7 f8N Kd6 f5 a2 g6 h4 f6 h2 b7 Kc7 f7 Kb6 g7 c4 d5 c3 d6 e4 Ba3 h3 Ne6 c2 f8B c1Q Ne2 e3 Nbc3 Rh4 Ne4 Ra6 Nc6 Nh6 b8B Nf7 N2d4 e2 g8Q Qc5 Qc1 Qd5 Rg1 h1Q Na5 h2 Qg7 Qg2 Nf2 h1B Qc2 Ra7 Qb2+ Ka6 Rd1 Qe8 d8B a1Q Bf6 Qb1 d7 Qbg6 Rd3 Rc7 Rh3 Rc3 Rh2 Rf3 Rh3 Q2g5 Rg4 Qd3 Bg2 Rg3 Be4 Rf3 Bg6 Qh5 Ng5 Qee4 Nge6 Ng5 Be8 Nf7 Rg6 Qeg4 Rh6 Qg2 Rg3 Q3f5 Kd2 Qfh3 Rg4 e1Q+ Kc2 Qef1 Kd2 Qd3+ Ke1 Qhh2 Ndb3 Qf4 Nbd4 Qc1+
3B3Q/b1r1NpRP/2KbqBRn/k3pr2/1r2BB2/4Q1R1/1N3R2/3r3R w - - 0 1 legal: proof: b4 b5 c4 a5 g4 h5 gxh5 d5 cxd5 Rh6 e4 Rh7 d6 Rh8 a4 axb4 axb5 Bg4 Ne2 Bd7 Ng1 Bc8 d4 e5 f4 Be7 f5 Kf8 d5 Be6 d7 Bd6 fxe6 Ke7 Bg2 Kf6 Bf1 Bf8 d6 Nc6 Qd3 Nce7 Qd1 Nd5 exd5 Qc8 Nf3 Qb8 Ng1 Qd8 Kf2 g5 Kf3 c5 Ke4 c4 h4 g4 b6 b3 b7 c3 b8R c2 h6 b2 h5 g3 h7 g2 h6 Ra4+ Qd4 Ra6 e7 Ra5 e8R Ra3 Bf4 c1R Ne2 g1B Ra2 Rc7 Nc1 Rc2 Bg2 Qc8 d8B+ Be7 d7 Rac3 d6 Ke6 Qe3 Rd3 Nc3 b1R Rb3 Rf2 Nd5 Rf3 Rf2 Rd2 Nd3 Bh2 Nb2 Bg1 Rf8 Bg5 Bf6 Rdd1 d8R Qa6 d7 Kd6 Rdb8 Kc6 Ne7+ Kc7 R8b5 Qe6 Rd3 Bh4 Rc5+ Kb6 Rc6+ Ka5 Rb6 Qh3 Kd5 Bg5 Rd6 Qe6+ Kc6 Bh4 B4g5 Rf4 Be4 Rf5 Bf4 Bg5 Na4 Rb3 Nb2 Rb4 Rb8 Ra4 Rbb3 Rb4 Rdd2 Rb7 Rg2 Bh4 Rg7 Be1 Rf2 Bb4 Qc1 Ba3 Rbg3 Rb4 Rfh2 Ba7 Qe3 Rb7 Rc2 Qa2 Re6 Bd6 Rf2 Rb4 Bh4 Qb3 Reg6 Qe6 Bhg5 Nf6 Bh4 Ng4 Bf6 Rhb8 h8Q R8b7 h7 Nh6 d8B+ Rc7+
4R2R/1pQ3Nr/2p4R/B2R3N/q1r4R/q2BP3/1nN1Q2n/r1N1K1nk w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 Be7 b4 Qd6 g4 Bf8 b5 Qd8 b6 axb6 gxh5 Nc6 a4 Be7 e3 Ra6 a5 Nf6 Be2 Ra8 a6 Bg4 Bxg4 Ng8 Bf3 Bh4+ Ke2 Be1 Kxe1 Nb8 h4 Kd7 d4 f5 e6+ Kd6 h6 g5 a7 c6 e7 f4 e8N+ Kd7 h7 g4 h5 g3 d6 Ke6 h6 Kf5 d5 g2 d7 b5 d6 b4 Ne2 g1N Rh4 b3 Bd2 b2 Ba5 Qe7 d8R Nd7 Nc1 Ngf6 Be2 Ke4 Na3 b1R Ng7 Nb6 d7 Nc4 Nc2 Rb4 Bf1 Qd6 Qe2 Nb2 Re8+ Qe7 d8R Ng4 Rd5 f3 Nh5 Rc4 Ng7 Rf8 h8R Rf7 Nh5 Rg7 h7 Rf7 Ra4 Rg7 Rh3 Rf7 Ng7 Nh2 Rh6 f2+ Kd2 Rb8 a8Q Rc8 Qa7 Ra8 Qb6 Ra7 Qc7 Ra6 Qe1 Kf3 Bd3 Kg2 Qe2 Kh1 Rb4 f1Q Ra4 Rc3 Rah4 Qf4 Ke1 Rc4 Rhf8 Rf6 h8N Qa3 Ng6 Rf7 Rfh8 Qg4 Nf4 Rd7 Nge6 Rh7 Nh5 Ra8 Neg7 Qd4 Bb4 Qda7 Bc3 Q7a4 Ba5 Qf8 Nb3 Qb5 Bb6 Ra1+ Nc1 Qa3 Ba5 Qba4
2N1Q3/pqR4q/1B4Pr/1N4Nb/1B4R1/KpNbb3/1b1Q1NB1/B3r1k1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 b4 c4 Qd7 cxd5 Qd8 Bd3 c5 Qc2 c4 Ra2 Na6 Bf1 Nc7 Ra1 Nf6 Qd1 Nb5 axb5 Ne4 b3 c3 Qc2 Nd6 Qd1 Nc4 bxc4 Bh6 Ne2 Bg7 Ng1 Bf8 g4 Kf7 d4 e5 f4 h5 d6 c2 Kd2 e4 f6 Ke6 g6 h4 f5+ Kd7 f7 h3 b6 Kc6 d7 h2 b7 Rb8 g7 Rg8 f6 Rh8 g8Q Qa5 d8B Rh6 c5 Kd5 g5 Qa6 c6 Bh3 g6 Rc8 b8Q Bc5 f8B+ Be6 c7 Bd6 f7 Rh3 Bg2 Qb5 Ra4 Rh5 Nc3+ Kc4 d5 Kd4 Bb2 c1B+ Kc2+ Ke3 Kb3 Kf2 Qd2+ Qe2 Ba1 e3 Nh3+ Kg3 Re1 h1B Nf2 Kh2 Qb5 Rb8 c8N Bf4 Bb6 Bg4 d6 Qf3 d7 e2 d8N Be3 Ne6 Rh6 Ng5 Qb7 Qg7 Ra8 Qe8 Bh5 Be7 Rb8 f8N Ra8 Rd1 e1Q Nfe6 Kg1 Nc7 Qf1 Ka2 Qe1 N7b5 b3+ Kb1 Qf1 Bb4 Rb8 Qge5 Qh7 Qed4 Rb7 Qb2 Re7 Qf4 Re4 Rd7 Qc4 Qd6 Qcf7 Qdd2 Qd5 Rc7 Qb7 Bf1 B1f3 Bg2 Bd1 Be7 Re5 Rg4 Be2 Bb4 Bd3+ Qbc2 Bc5 Qf4 Bd2 Kb2 Re1 Ka3 Bc1+ Qb2 Bd4 Qd2 Bc5 Ncd1 Be3 Ndc3 Bxb2+
RB6/1N1Q1b1K/Qq2Q3/1BN3q1/2b5/3nbQrr/P1qk2B1/RB3nnQ w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 Ke2 Kf7 Ke3 b5 Kf4 h5 g4 e6 f6 Kg6 f7 b3 c6 b2 d6 b4 c7 h4 d7 h3 Bg2 h2 Nd2 b1N Ne4 b3 Nf3 b2 Nh4+ Kg7 g6 Kh6 g7 e5+ Kf5+ Nd2 f4 Nf1 Nc5 Ba6 c8Q Nf6 g8B e4 Bh7 Qb6 d8Q b1Q Qe6 Nc6 Q8d7 e3+ Q1d3 e2 g5+ Kh5 g6 e1Q g7 Qe3 g8B Bh6 f8Q Nd5 Ba3 Ra7 Qa8 Bc4 Qde4 Rc7 Qa6 Ncb4 Bb2 Qg3 Be5 Nd3 Qe1 Rc8 Bb8 Nc3 Kf6 Qc1 f5 Kg4 Kg6 Qc2 Rg1 Qe5 f6+ Kf4 f7 h1B Nf5 Ne2 Nd6 Ke3 f8Q Rd8 Qb1 Kd2 Qf3 Be3 Ndb7 Qd5 Kg7 Qg5+ Bg6 Rc8 Bf7 Rh3 Be8 Rg3 Kh7 Rc6 Qdd6 Rc8 Bb5 Rf8 Qed7 Rf4 Be4 Rh4+ Qh6 Rhh3 Qb3 Bf7 Qbe6 Bh5 Bf5 Nh2 Rgb1 Ng1 Rb4 Nf1 Ra4 Qf4 Be4 Qg5 Qff5 Qc3 Bec6 Bf3 Qa5 Rh4 Bh3 Bg4 Qf8 Bd5 Qf3 Nb4 Bg2 Qb3 Bd3 Bc4 Bb5 Qc3 Bc2+ Nd3 Bb1 Rh1 Qa7 Qc2 Qh4 Bh5 Qh2 Nh3 Qg1 Rh2 Qh1 Ng1 Ra6 Rhh3 Ra3 Qbd8 Qab6 Qc7 Ra8 Qcd8 Qa7 Qb6 Qa6 Bf7+
Q2R1Nr1/b3B1N1/2Bbn3/2R1P3/2Q1N1KR/kq1r3R/3bnq2/qrN3R1 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 d5 cxd5 g5 a4 Bf5 axb5 Bg6 h3 f5 Ra3 exf4 Ra1 Bh5 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Kf7 Qc2 Ke7 Qd1 Ke8 e4 Ke7 Ke2 Kd6 Kf3 Kc5 d4+ Kb4 d6 h5 e5 a5 b6 c5 f6 c4 f7 c3 g5 h4 d7 g2 d5 a4 g6 c2 g7 h3 b7 h2 d6 a3 Bb5 a2 Nc3 Qh4 d8N Ra5 d7 Nf6 g8Q Be7 f8N Nc6 b8R Ra7 Qf1 Ne8 Nge2 g1B Nde6 Ra3 d8R Bd6 Ng7 Bb6 Rbc8 Qf2+ Kg4 f3 Bg5 c1B Ne4 Bd2 Nc1 Ba7 Be7 Nd4 Rc5 Rd3 Bc6 Ne2 b3 Ka3 b4 Nc7 b5 Ne6 b6 Qe3 b7 f2 Rg1 h1Q b8R Qh2 Qg2 f1R Rb4 Re1 Rh1 Qhg1 Rh3 Qgf2 Rab1 a1Q Qf3 Ng5 Qc4 Rg8 Rh4 Rb3 Rb7 Qf1 Nd3 Qef2 Bd7 Ba5 Nf6 Rc3 R7b3+ Ka2 Qg2 Ne6 Qa8 Qe3 Ba4 Qff2 Ne4 Rf1 Bc6 Re1 Rb6+ Ka3 Rd1 Rb3 Rb7 Rb1 Nc1 Rh1 Rbb8 Rh3 Rg1 Bd2 Rb7 Bb8 Rbd7 Qb3 Rd3 Bd6 Rc3 Rf3 Re3 Rf7 Reg3 Rf3 Rgh3 Rd3
3B3k/nb1N3N/1B1NB1rn/4n1P1/N3K1Bn/n1R1bN2/qb1Q1r2/Q4R2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Kf3 Kg7 g4 e5 d4 c5 d6 h5 f6+ Kh7 b6 b3 b7 b2 d5 c4 d7 h4 f7 c3 g6+ Kg7 g5 c2 d6 h3 Be3 c1N Bb6 h2 Bh3 Nb3 Qd2 Ra6 Ra3 Nc6 b8Q Na7 Bg4 Nh6 Qa8 Nc1 Ke4 Nd3 Nc3 b1N f4 Qf6 d8B Qe6 f5 Qa2 d7 Bc5 f8N Be3 Rb3 Na3 Nh7 Rf8 f6+ Kh8 Na4 Rf7 Rc3 Bb7+ Rc6 Rf8 Nf3 Rf7 Rf1 h1N Qb8 Rf8 Qd6 Rf7 Qd4 Rf8 Qa1 Rf7 Ne1 Rf8 f7 Ng3+ Kf3 Ngf5 Ke4 Nh4 Nf3 Re8 f8N Re7 Bdc7 Rf7 d8N Rf5 Nd4 Rf2 Nf3 Bd4 Nd7 Bb2 Ke3 e4 Rc3 Ne5 g7+ Kg8 Kf4 e3 Nf7 e2 Nd6 e1B Ke3 Bc6 Bd8 Bb7 Qc2 Bd2+ Kd4 Bc8 Ke4 Bf4 Qd2 Be3 Ba5 Rc6 Bab6 Bb7 Nc4 Kf7 g8B+ Kg7 Bd5 Rg6 Nd6 Nec6 Bb3 Kh8 Bbe6 Ne5+
3b2B1/5NnB/1N1P2r1/1NBRrbQB/1K5r/3qq2b/2RB1QNn/4r2k w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 Kf7 Kd2 h5 g4 c5 f4 e5 g6+ Kf6 b6 c4 g5+ Kg7 d6 e4 d7 h4 b7 h3 d5 h2 Na3 b3 Kc3 b2 Ra2 b1R Be2 e3 Nf3 Rb4 Qg1 Rh3 Nh4 Rb5 Bd2 Ne7 Bh5 Ra6 Rc2 Nbc6 b8N Ne5 Ng2 e2+ Qe3 Ng4 Rd1 Rba5 Nb5 e1R Kb4 h1B Qg3 c3 f6+ Kg8 g7 Kh7 f5 Rh4 f7 Rg6 f6 Nf5+ Qd6 Be7 f8B Rf1 f7 Re1 Qc5 Nh2+ Nf4 Be4 Ng2 Bf6 Bd6 Be7 g8B+ Kg7 Bh7 Bf6 Ra2 c2 Qe3 c1Q Rc2 Be7 Bc5 Bf6 Qf2 Be7 f8N Bf6 Nc6 Bd3+ Bf4 Qe3 Ne5 Be7 Nc4 Kf7 Ne6 Ng7 Nb6 Bf5 Rd4 Qf8 d6 Bd8 Rd5 Qd3 Ned4 Qe7 Nf3 Qee3 Ne5+ Ke6 Nf7 Bh3 Rd4 Kf5 Rd5+ Ke4 Nd4 Be7 d8Q Bcf5 Nb5 Qee2 Bd2 Qee3 Qd7 Bd8 Qa7 Re6 g6 Re5 Qg3 Raa1 Qa2 Rg1 Qg5 Rae1 Nf4 Rg3 Ng2 Rgg4 Qb2 Kf3+ Qd4 Kf2 Qdf4+ Kg1 Qd4 Ne8 g7 Kh1 g8B Ng7 Qdf4 Be4 Qf2 Bf5+ Qgf4 Rg6 Qg4 Be4 Qg5 Bef5+
3R1N2/qQ1BbP1R/1NQ1rn1K/1Rr2q2/8/4qb1k/Q1r1R3/nB3RQq w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 Kg3 c5 Kg4 e5 h4 a5 d4 a4 h5 c4 d6 e4 h6 c3 Kh5 g4 b4 a3 h7 a2 b6 e3 f6 Ke6 d5+ Kf5 d7 g3 b7 c2 d6 c1R b5 g2 b6 e2 Rh2 e1Q Na3 Ra4 Nh3 g1Q Bb5 Qd4 Re2 Nc6 b8R Qa5 b7 Qd5 Nc4 Qh1 Nb6 Rf4 Qg1 Rcc4 Rf1 Qc7 d8Q a1Q d7 Qg2 Ng5 Qb2 Qe8 Qba3 d8R Rc2 Ne6 Be7 Nf8 Nd4 Qc6 Qe3 f7 Nf6+ Kh6 Kg4 g8Q Kh4 g7 Qh1 Qgg2 Bg4 Qgd5 Bd6 Qa2 Be7 Qe4 Qc4 Nfd7 Qhf3 Rbc8 Qh1 b8Q Bf3 Qbb7 Qca4 Rc5 Bf8 Bc6 Qa7 Rb5 Nb3 Qd5 Bd6 Qc5 Kh3 Qe8 Qc1 Qg1 Qe3 Qe4 Rf8 h8R Re8 Nf8 Na1 Bd7+ Re6 Rh7 Be7 Qec6 Qae4 g8B Rd2 Rh8 Q4d3 Bh7 Rf5+ Kg6 Rg5+ Kh6 Qd5 Bb1 Rc2 Rh7 Qde5 Na8 Q5e4 Nb6 Rgc5+ Qg5 Q3d3 Qg6 Qf5 Qg1 Qe3+
1Nr4N/P1R2R2/n4K2/bN2Q2b/1brQr1R1/1k1qb1B1/1N5R/2BN1n1q w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 g4 h5 f4 g6 g5 Bg7 Be2 Bh6 fxg6 Bf8 Bg4 hxg4 f5 Qd7 Qb3 Qd6 Qd1 Qd8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kc4 a4 b5 d4 c5 h4 e6 h5 g3 a6 b4 a7 g2 g7 b3 g6 b2 h6 Qb6 a5 Ba6 h7 Be7 d6 Bg5 d5 Qb3 f6 Qc3+ Qd4+ Kb3 f7 c4 f8R Ne7 g8R Qd3 d7 c3 d8N c2 d6 Bb7 a6 Qd1 d7 Qd3 g7 Bc6 Ne2 g1R Rh2 Nf5 Rf7 Ng3 Nf4 Bh6 Kf6 e5 Nc3 b1Q Nd1 Bf3 Nc6 e4 d8B e3 Bc7 e2 Ra5 e1B Rc5 Nf1 Rc4 Qe3 Nd3 Rg4 N3b2 Bb4 Bg3 Qd3 Rc8 Bhd2 g8Q Qa1 Qe8 Re4 Rcc7 Bh5 Qee5 Rc8 h8N Ba5 Qdd6 Bdb4 Rd4 Re3 Rg4 Re4 Qdd4 Nd7+ Kg5 Nc5 Kf6 Rab8 a8N Qb1 a7 Na6 Bg5 c1B Be3 Rb5 Nb8 Rc5 Bh6 Be3 Bhf4 Bf2 Bc1 Rc2 Rb7 R2c4 Nc7 Be3 Nb5 Qbc2 Rbe7 Qg2 Rc7 Qh1
1b2b2R/B2QR1NB/rQrBNN1k/BrN5/5n1P/1b6/K2n1r2/5Bbq w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 Qh5 g5 Qxh7 f6 f4 f5 exf5 gxf4 Kd1 a5 Kc2 e5 Kb3 c5 g4 a4+ Ka2 e4 b4 a3 d4 e3 b6 e2 d6 e1B g5 c4 f6 f3 g6 c3 f7+ Kd7 b5 Ke6 d5+ Kf5 g7+ Kg4 b7 c2 b6 f2 d7 Beb4 d6 Ra5 Nf3 Be1 Bd2 c1R Nd4 Qh4 d8Q Nf6 g8B Ne4 d7 Rb5 Nc3 Nc6 b8B Ne5 b7 Bd6 f8B Ng6 Nd5 Rc6 Ba7 Bb8 Bd6 Nf4 Ba5 Nd2 Qb6 Kg5 d8N Be6 Qd7 Kh6 Bh7 Rf8 h3 Bf7 N8e6 Be8 Ng7 Rf5 Nde6 Rf6 Bc4 f1B Bcd3 Rf7 Nf6 Bf2 Re1 Bg1 Be2 Bg2 Bf1 Be4 Re2 Bc2 Re3 Qe1 Re5 Qe4 Rh2 Qh1 Re4 Bc7 b8N Ba4 Na6 Bb8 Nac5 Rf8 Nc7 Rf7 Re7 Bb3+ Ka1 a2 Kb2 a1R Nc7e6 Re1 Ka3 Bd1 Ka2 Re2 h4 Rf2 Rg2 Rf8 Ngh5 Rf7 Rg8 Rg7 Rh8 Bb3+ Kb2 Rg3 Nhg7 Rc3 Qbc7 Ra6 Qb6 Ba4+ Ka2 Rc4 Nb3 Rc6 Nbc5 Bb3+
1n2bbN1/3q2n1/1k1q2Q1/R4rQ1/RnQ1KB2/1N1PR2Q/1b3Rn1/Qn3B2 w - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kf3 e5 b4 c5 g7 Kc7 d3 h5 f6 h4 f7 a4 g6 c4 Nc3 h3 Ne4 c3 Nf6 h2 Be2 Nc6 b6+ Kb7 d6 c2 d7 a3 b5 a2 Qe1 Bc5 f8R Nge7 g8Q Nf5 g7 Rh5 Qc4 Qe7 d8Q Bd7 g8R Be8 Rg3 Qd7 Ng8 Ng7 Qf6 Bb4 Qg6 Be7 Be3 c1B Qf1 Bca3 Qh3 Bed6 Rf5 Bf8 Rf1 a1N Bd2 Kb8 b7 Kc7 Rfg5 Nc2 b6+ Kd8 Ra1 Bc1 Ra4 e4+ Kf2 f3 Rga5 Rf5 b8Q+ Qc8 Qf4 Qd7 Rg2 e3+ Kg3 f2 Kf3 f1N b7 Bca3 Ke4 Bc1 Qfh6 Kc7 Nf3 Bca3 Rhg1 h1Q Nd4 Qh2 Rf2 Qhd6 Qhg5 Bc1 Rg3 Ba3 Bf3 e2 Bg2 e1N Bf4 Bc1 Re3 Ba3 Bf3 Ng2 Be2 Bc1 Qc3 Ba3 Qa1 Bb2 Nb3 N2b4 Qhh6 Na6 Qh3 Ncb4 b8Q+ Kc6 Qc8+ Kb6 Qc3 Nb8 Qc4 Ng3+ Kf3 Ne4 Bf1 Nc3 Qd4+ Rc5 Qc4 Nb1 Ke4 Rf5
Q2R2bq/1N2b1Q1/bKnQ2N1/1P2rqk1/3N4/1r3R1B/5qNB/1bbQN3 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Ke2 c5 Kd3 e5 Kc4 Ke7 b4 h5 d4 a5 d6+ Kd7 g7 e4 f6 Ke6 f7 Kf5 d7 a4 d5 e3 b6 h4 Kb5 e2 b7 e1Q b8Q f3 d6 h3 g6 f2 Ne2 c4 Nd2 a3 Nd4+ Kg5 N2f3+ Kh5 Bf4 a2 Bh2 Ne7 g8Q c3 g7 c2 Rc1 Qd2 Ne1+ Kg5 Kc5 a1Q b5 Qe8 d8N Qb1 d7 Rh5 Kb6 Ra3 Qd6 Nc6 Nb7 Rb3 d8N Be7 f8N Be6 Qh8 Bg8 Ng6 Qf8 Bg2 f1B Rg1 Bd3 Rf1 Bf5 Rf3 Qf2 Bf1 Qb2 Ra1 c1B Ra8 Bb1 Ne6+ Kg4 Qh7 Qf5 Nef4 Kg5 Nfg2 Qa1 Rd8 Qa8 Bg3 h2 Be5 h1B Bh2 Rh4 Qh8 Re4 Qh7 Re5 Qh8 Bh7 g8Q Qa1 Qgg7 Bg8 N2h4 Qc3 Bh3 Bg2 Rd3 B2d5 Nhg2 Bde6 Rf3 Bc8 Nc5 Ba6 Nb7 Qcb2 Qf8 Qh4 Qhg7 Qbf2 Qe8 Nb4 Qec6 Qh8 Qc8 Nc6 Qcb8 Qh7 Qa8 Qh8
2q1R1BR/PB2r3/Q1n1n3/RQN3b1/qr1Q1q2/2KQn2R/2Q1n3/3Nk1n1 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Nc6 bxa3 Bd7 a4 Bc8 a5 Nb8 f4 h6 f5 Qd6 f7+ Kd7 Bb2 Ra7 Bf6 Ra8 Bg5 hxg5 f6 Kd8 Ne2 Bf5 gxf5 Kc8 Ng1 Qd8 Qf3 Kd7 Qe2 Nc6 Qd1 Nb8 h4 Kd6 a4 Ke5 d4+ Kf4 Kd2 Kg3 d6 Kf2 d5 c5 d7 e5 d6 b5 h5 e4 a6 b4 a5 g4 h6 g5 h7 g3 a7 g2 Qc1 g4 Bc4 g3 Rh3 b3 Nc3 b2 Nge2 b1Q Nf4 Na6 Ne6 Rb8 a8B Nc7 a6 Be7 f8R Qc8 d8Q Rb4 d7 Qb3 Ra5 Qa4 a7 e3+ Kd3 g1Q f7 g2 f6 e2 Re8 Qf1 f8Q g1N f7 Bg5 Bb7 Ne7 Qh6 Rf8 Bb3 c4+ Kc2 Rg8 h8R Rg7 Nc5 e1N+ Kb2 Rh7 Qa6 Nc2 Nd1+ Ke1 f8Q Ne3 Qf3 Rf7 Qfc6 Qf4 Qcb5 Nc6 Qf6 Re7 d8Q Ng4 Kc2 c3 Kd3 c2 Bg8 Ne6 Kc3 Ne3 Qdd3 Qfc7 Qb1 c1N Qbc2 Qf4 Qfd4 Nce2+
k5Bq/1b2r3/4rN2/1R3Rq1/3bBQb1/BRK1P1n1/B1b2q2/2R1NrRQ w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Nc6 Kf2 Nf6 Ke1 Na5 bxa5 Ng8 d4 Kd7 Kd2 h5 g4 c5 a6 Kc7 e3 Kb8 d6 f5 a7+ Kb7 d5 c4 g6 a3 g5 a2 b6 f3 d7 f2 d6 f4 g7 f3 g6 h4 Qa4 h3 Bg2 f1B Ba3 h2 Nc3 Nf6 g8B Rh7 g7 Qe7 d8R Bg4 d7 Bd3 Rc1 a1Q Ne4 f2 Nf3 f1Q Ne1 Nh5 Rg1 h1B Nf6+ Be4 Rc8 Ng3 Rc5 Re8 Rb5 Ka8 Qb4 Bb7 Be4 c3+ Kc2 Qe5 Ba2 Bc5 g8B Bd4 Qf8 Re7 d8R+ Qb8 Rd7 Qe5 Rdd5 Qg5 Rf5 Qf2+ Kd3 Re6 Qd6 c2 Qf4 R8e7 Kc4 Bc5 Kd3 Qe5 Rb3 Qb8 Kc3 Bd4+ Kd3 Bd1 Nf3 Qc7 Rcb1 Qg6 Bb4 Bc6 Rg2 c1R Qh6 Kb7 a8R Bc3 Raa5 Bc2+ Kc4 Rf7 Rg1 Qg5 Bd3 Rfe7 Ba3 Rf1 Rc1 Nh5 Ne1 Bcf3+ Rac5 Kb8 b7 Qch2 Rcb5 Bg4 Qh7 Ng3 Qh6 Ka7 b8Q+ Ka6 Qf4 Ka7 Qh5 Bb7 Be4 Bd4 Qh4 Ka8 Qh5 Ba7 Kc3 Qh1 Qh3 Bb6 Qg2 Qh8 Qh1 Bd4+
NRB2k2/1nb1N2q/RK6/n1r1N3/R1rPB3/1Q2r2r/1R1Rqq2/3nQ2N w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 Bd7 b3 Nc6 Ba3 Nd4 Bd6 Nc6 Bf4 gxf4 h3 Nb8 g5 Be6 Ra4 Bf7 Ra3 Bh5 Ra1 Bg4 hxg4 Qc8 Ke2 Qd7 Ke1 Qd8 Kf2 h5 b6 c5 f7+ Kd7 d6 a5 g6 e5 f6 a4 b7 f3 Ke3 h4 b4 e4 g7 c4 Kd4 a3 Kc5 c3 b5 a2 g5 e3 g6 c2 b6 c1Q+ Nc3 f2 Qe1 h3 Rh2 e2 Bg2 f1N Nf3 Ne7 g8B Qd1 g7 Qc2 Ne5+ Ke6 d7 Rh7 Be4 Qd3 Nd1 Nbc6 b8Q Na5 b7 Ne3 Nf2 Nd1 Nh1 Qc8+ Kb6 Qcc2 d8R Nec6 Rd4 Bd6 Ra4 Nd8 Rb1 a1R Rb2 Qe3+ d4 Rc1 Rg2 h2 f8R+ Nf7 Rc8 Qf2 Rc6 Rh3 Bgh7 Qd2 g8N Nd8 f7 Rc5 Ne7 Kf6 Bhg6 Kg7 Bgf5+ Kf8 Bc8 Qde3 Rg3 Qd2 Rd3 Qc2 Rd2 Rc4 Qg1 e1R Qf1 Ree3 Qe1 Bb4 Rh6 Bd6 Re6 Qd3 Rg6 Qde2 Re6 Kg7 f8N Ra7 Nfd7 Ra6+ Kb5 Rac6 Nb6 Kf8 Na8 R6c5+ Kb6 Qf4 Qc7 Qff2 b8R Ndb7 Qc6 Qg2 Qb5 Qgf2 Ng3 h1Q Qb3 Qhg1 Nh1 Qg6 Ka6 Qh7 Ka7 Bc7 Ra6 Bd6 Kb6 Bc7+
4bN2/q1PbBR1r/QQ2b3/r3R1rn/b1r1BN2/NB1BK3/2B5/1N1rk3 w - - 0 1 legal: proof: d4 b5 h4 e5 f4 g5 a4 c5 axb5 f5 g3 g4 Qd2 Be7 Qd1 Bg5 hxg5 cxd4 Rh2 Na6 Rh5 Nb4 Rh1 Nd5 fxe5 f4 Bh3 f3 Bf1 Nf4 gxf4 Ke7 Qd3 Kf8 Qd1 Ke8 Kd2 Ke7 b4 Ke6 e4 h5 c4 d5 g6 a5 f5+ Kd7 e6+ Kd6 c5+ Ke5 f6 Kf4 b6 Kg3 c6 Kf2 b7 d3 b8Q h4 c7 d4 b5 h3 e5 a4 f7 h2 f8N a3 b6 a2 e7 g3 e8B g2 g7 Qh4 e6 Rh7 b7 Nh6 g8B Bd7 e7 Ra4 Bg6 Nf5 e8B Ng7 Ba3 Nh5 Bb3 Rc4 Ne2 g1R Be4 Rg5 Nf4 Qg3 Qc1 Qg1 Be7 Be6 Qa3 Bd7 Kd1 d2 Qa6 Be6 Bea4 Bd7 Nc3 Be6 Kc2 d1B+ Kd3 Ke1 Nb1 f2 Qba7 Bdg4 b8N Bh3 Be2 f1R Q7b6 Qf2 Rg1 h1B Nc6 Bd7 Na5 Bhe6 Bc2 Bg2 Rh1 Bgh3 Rh2 Be8 Bab3 B6d7 Rh1 Bhe6 Rh3 Rh1 Re3 Qg1 Bd5 Qf2 Re5 Qg1 Ke4 d3+ Kf3 d2 Bde4 Qc5 Be2d3 Qa3 Ke3 d1B Nb7 Qa4 Nd6 Qa5 Nb5 Rf1 Qab7 Qa7 Qa6 Rfg1 N5a3 Rh1 Nd2 Rhg1 Rb1 a1R Rb2 Bdg4 Ndb1 Ba4 Bd1 B6d7 Rf2 Bge6 B1c2 Ra2 Nh3 Ra1 Rf7 Rf1 Nc3 Rd1 Nf4 Rf2 Ncb1 Rfd2 Be2 Rd5 Be2d3 Ra5
1B4n1/5NN1/n3rqnP/kq1R3Q/rr1QBqrB/r2B4/6Q1/QR2KQ2 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 h5 Ng1 g6 h3 Bh6 g5 Bg4 gxh6 g5 Qa4 Be6 Qd1 g4 Nf3 g3 Ng1 Bg4 hxg4 Qf6 Ra5 Qh4 Ra1 Qd8 b4 Kd7 e4 c5 d4 Kc7 d6+ Kb6 e5 f5 e6 a5 d5 g2 g5 a4 g6 f3 e7 c4 e8B a3 g7 a2 d7 c3 d6 h4 Ne2 g1N Nd4 c2 Bg5 c1R Bd3 h3 Na3 h2 Rb1 a1Q Bg6 f4 Bge4 Nf6 g8Q Ra5 Bh4 Qc7 d8Q Ra4 d7 Rc3 Ne6 Nh3 Qde8 Na6 Qg2 Rg8 d8Q Rg4 Qh5 Ng8 Ng7 Rc4 Qdd5 Qf6 Qd4+ Qc5 Rg1 h1R Rf1 Rh2 Rf2 Rc3 Rd2 Rb3 Qf1 Rhg2 Qde2 R2g3 Qeg2 f2+ Kd1 f3 Nc4+ Ka7 Nd6 Nf4 Nf7 Ng6 Qa1 Qd5 b6+ Kb7 b5 Rbb4 Bc2 Qdc6 Rd5 Qf4 Bcd3 Qcf6 Qe2 f1Q+ Qe1 Qf2 Qef1 Qc5 Ke1 f2+ Kd1 Kb8 b7 Kc7 b8B+ Kb6 Ke2 Ka5 b6 Qb5 b7 Qe7 Qfg1 f1R Qgd4 Rf2+ Ke1 Qef6 Rb3 Rf1+ Ke2 Rff3 Bc7+ Qb6 b8Q Nh8 Bf5 Rc4 Bc2 Qc5 Rb1 Rfa3 Ke1 Ng6 Qe8 Rgc3 Qee2 Rcb4 Bb8 Re3 Bcd3 Qf6 Qf1 Re6 Bfe4 Qb5 Qd2 Rb6 Qdg2 Re6
4r1b1/R3bNn1/1KNQ1RR1/2b2rPb/Q3r1N1/1N1rbR1B/R2B4/1r1k4 w - - 0 1 illegal: No possible last move, all moves rejected
Rn4n1/1q2rN2/2b3r1/3k1B2/N3N1pQ/2q1bKNb/NRQ1PRB1/1r3R2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 Nh6 c4 Ke7 cxd5 Ke8 Ba3 Qf6 axb5 Qd6 b6 Ng8 b5 Qd8 Bb4 axb4 Kf2 Ke7 d4 f5 h4 g5 d6+ Ke6 h6 c5 d7 f4 h5 b3 d5+ Kf5 e6 Ke4 b7 f3 h7 b2 d6 c4 h6 c3 b6 c2 e7 c1Q e8B Ne7 Nd2+ Kd4 Ne4+ Ke5 Rh2 b1B Bg2 Ra7 Bg6 Ra3 Nh3 Qb2 Ng3 Qc2 Bf5 Qcc7 Qc2 Rg8 h8Q+ Rg7 h7 Na6 b8R Qa7 Ra8 Kd4 b7 Nc6 b8R Qdc7 d8N Re3 d7 Qab7 Ne6+ Kd5 d8N Ne7 Nc6 Ng8 Nc5 Ree7 Na4 Be6 Ke3 Rg6 Nf2 Bc8+ Nfe4 f2 Kf3 f1R+ Kg4 Rc1 Kf3 Ba2 Rb1 Bd7 Rb2 Rb1 Rh1 Bg7 Rf8 Nb8 Rf1 Bd4 Rf6 Be3 Nb4+ Ke5 Rf2 Bae6 Na2 Qc3 Rf7+ Kd5 Qd4+ Kc6 h8N Be8 Qb4 Kd5 Rf6 Bc6 Nf7 Rg7 Rh6 Bed7 Rh1 Rg6 Rhf1 Be6 Nd2 Bc8 Qh4 B8d7 Bd3 Bh3 Bf5 Re5 Nde4 Ree6 Rb4 Re7 Rb2 g4+
B2nBN2/3Q1q1q/n4N2/2rB4/2pb1K2/R1Nb4/1P2rbn1/Q2NRBkN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 fxe5 Be7 c4 Ba3 cxd5 Bf8 hxg5 Ke7 e4 f6 d3 Nc6 e6 Nd4 e5 Nc6 Bf4 Nb8 Bg3 Ke8 e7 Kd7 Bf2 Qe8 e6+ Kd6 Bd4 Qd8 Be5+ fxe5 Kd2 Kc5 Ke3 a5 e8N h5 g4 h4 g6 e4 g5 h3 d6 c6 b6 h2 e7 a4 d7 a3 b7 a2 d4+ Kd5 g7 c5 g6 c4 Nc3+ Kc6 d5+ Kc5 d6 Ra5 Nf6 Nh6 e8B Nf7 g8B Bg7 Kf4 e3 Nh3 e2 Ng4 e1B Ne3 Na6 b8N Qe7 d8Q Bd4 g7 Bf2 Qd7 Nd8 Bd5 Rh6 g8B Re6 Rg1 h1Q Ba8 Bb7 Qb1 Be4 Ned1 Bd3 Qc1 Re2 Bgd5 Qh7 Rg3 Qg2 Rb1 a1N Rf3 Bg1 Nhf2 Qgg8 Nh1 Nc2 Re3 Qe6 Ra1 Ne1 Ra3 Bf2 Qa1 Nf3 Re5 Nh4 Re3 Rd2 Re1 Qef7+ Qf5 Re2 d7 Bf6 Qh3 Kd4 Qg4 Rc5 Qf5 Nc6 d8N Bh8 Nd7 Bg7 Nb7 Nd8 Nd6 Bh8 Nde4 Ng2+ Kg5 Bg7 Nf8 Be5 Qd7 Bh8 Nf6 Bg7 Nce4 Bh8 Ndc3 Ke3 Nd1+ Kf3 Nh5 Be5 Nhf6 Bed4 Nec3+ Qe4 Qb7 Bg1 Nhf2 Kg3 Nh1+ Kh2 Qd7 Qeh7 Kg4 Bgf2 Kg5 Kg1 Kg4 Nh4 Kf4 Ng2+
B1q1bNn1/5Q1B/1b1B4/nPb1R2K/8/nBkr1QpR/B1rq1N2/4R1R1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 a4 b5 axb5 e5 c4 d5 cxd5 Qe7 f4 Qf6 fxe5 Qd8 Kf2 Kd7 Kg3 g5 d4 f5 e4 c5 h4 c4 d6 Ke6 h5 c3 h6 c2 d7 Ba6 h7 Qc8 d8Q Qc6 d5+ Kf7 d6 Ke6 d7 Ba3 Qf8 Qc3+ Nf3 Qc6 d8R Qb6 Re8+ Ne7 Nd4+ Kd7 e6+ Kd6 e5+ Kd5 Rg1 Ng8 e7 Bc8 e6 Qd6+ Bf4 c1Q a6 Bc5 a7 Bd7 Qf7 Nc6 Nd2 Rc8 Ne4 Na5 a8B+ Qc6 Qf3 Qd2 Bh3 Kc4 Nf2 Qa6 Bd6 f4+ Kg2 g3 Rae1 Rd8 Bf5 Qc8 Kh3 g4+ Kh4 g2 Kh5 g3 Bb1 Bc6 Ba2+ Kb4 Nf5 Rd7 Nh4 Rc7 Ng6 Bd7 Qe2 Kc3 Nf8 Bb6 Bb3 Rc4 Qd1 Rd4 Qf3+ Rd3 Rd8 Bc5 e8B Bb6 e7 Bc6 Rgf1 g1B Bd7 Bc5 Bde6 Be8 Ba2 Bb6 Beb3 Bc5 Nh1 Bge3 Rg1 Bb6 Nf2 Bec5 Qe4 f3 Rd7 Nh6 Ra7 Rg8 h8R Rg7 Qc6 Ng8 Rh6 Rg4 Rhe6 Rc4 R6e5 Kb2 Qe4 Rc2 Qf5 Kc3 Qf6 Nb7 Ra4 Na5 Rh4 Qe2 Rh3 Qd2 Ng4 f2 Qf3 f1N Nf2 Bd7 e8B Ne3 Bc6 Nec4 Ba8 Bc6 Bd7 Na3 Bf5 Bd7 Bh7 Be8
2B2r1k/5q2/3QBPb1/n1B2bBn/KQ1Br3/2Q1qR1p/N1Q2NR1/2n3q1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 d4 Kf8 Kd2 Kg7 Kc3 h5 Kb3 e5 f6+ Kf8 g7+ Kf7 b6 a5 b7 c5 d6 f3 d5 c4+ Ka4 f2 b4 e4 d7 e3 d6 h4 g6+ Ke6 b5 c3 b6 e2 Qc2 e1Q Bh3+ Ke5 Ra3 f1B Rh2 Qe3 Rg2 Qc7 d8B Nh6 g8Q Bd3 g7 Qf7 d7 Bg6 Be7 Nf5 d8B Ke6 Bc5 Nc6 b8Q Ra6 Qh7 Rf8 g8B Ra7 Qd3 c2 Qc3 Re7 b7 Bd7 Bd2 c1N Bdb6 Bc8 Qf4 Bd7 b8Q Ree8 Kb5 a4 Qfb4 Bc8 Bd4 Na5 Bbc5 Re7 Rb3 a3 Ka4 a2 Bg4 Ree8 Nh3 a1Q+ Ra3 Re7 Nf2 h3 Qg3 Qe5 Bg5 Qe3 Qcb2 Ree8 Nc3 Re7 Na2 Ree8 Bh5 Ng7 Q2c3 Kf5 Be2 Re4 Qd6 Nh5 Ba6 Ncb3 Bd3 Qg1 Ba6 Be6 Bc8 Nc1 Qg7 Bh7 Qh8 Kg6 Qc2 Bf5 Rb3 Qe2 Rf3 Qe3 Qbc3 Qb7 Bge6 Qf7 Bh4+ Kh6 Qb4 Bg6 Qg8 Bf5 Qgg3 Bhg6 Bg5+ Kh7 Qge5 Kh8 Qg3 Qe2 Qge5 Rf4 Qe3 Re4 Qec3 Qe3
B2r4/bB4qn/q3P2Q/1b1p3r/kN1nK2B/2Q1R3/B2Q4/2QNrqQR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 d4 h5 g4 a5 b4 h4 g6 h3 d6 f4+ Ke4 h2 b6 Kc6 g5 Kb5 e6 f3 e7 f2 e8B+ Nc6 d5 a4 g7 a3 d7 a2 d6 Nge7 g8Q Ra6 b7 Bg7 b8Q+ Rb6 g6 Nd4 Nc3+ Ka6 b5+ Ka5 Nf3 Bf6 g7 Bg5 Ne5 Bd2 Bg2 f1Q Nd3 Be1 Bg5 Nc2 Bh4 Rh5 Qc1 Rc5 Nd1 Qf8 Nb4 Rbc6 b6 Ne3 b7 Ng6 Qh8 Nc2 g8B Rf5 Qc3 Qdf6 d8Q Ka4 d7 Q6g7 Qa7+ Ra5 b8Q Ba6 e3 Nd4 Qbb6 Rd6 Qda8 Bf2 d8Q+ Bb5 Bc6 Bg1 Bb7 Qf1 Rb1 a1R Ba2 Nf8 Rb3 Nh7 Qba6 Rd7 Qh6 Qe2 Qdg5 Rd8 Qac5 Qf1 Q3d2 Qff6 Q5c3 Qa6 Qa7 Bf2 Qd5 Rb1 Kf4 Ra1 e4 Rb1 e5 Ra1 Rg1 h1Q e6 Qh3 Bf3 Qf1 Rh1 Be3+ Ke4 Bg1 Be2 c6 Ba8 Nf5 Qf2 Rb1 Qfg3 Ba7 Qg1 Nd4 Q3b2 Bc4 Re3 Rc5 Qbc3 Bb5 Bh5 Ra1 Be8 Rb1 Bd7 Ra1 Bc8 Rb1 Qd7 Rh5 Qd5 Nf3 Nb2+ Ka5 Qcd1 Nd4 Bcb7 Ra1 Q1c2 Rc1 Qb1 Re1 Nd1 Ka4 Qbc1 cxd5+
k4b2/2n2N2/2P1q1n1/pBR2Q2/4qNBR/1K1BQBn1/r2r1Q1b/2q2Q1Q w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 f4 Nc6 g4 Bg7 f5 Nb8 Bf4 gxf4 h3 Bb7 g5 Bf8 Nc3 Bf3 Nb1 Bg4 hxg4 Qc7 Bg2 Qb6 Bf1 Qd8 Kd2 h5 Kc3 a5 b4 e5 c6 d5 b6 d4+ Kb3 f3 c4 h4 b5 e4 c5 f2 b7 h3 b6 d3 f7+ Ke7 c7 Kd7 c8B+ Kc6 f6 h2 g6 e3 g7 e2 g5 e1B g6 d2 Ne2 Rh4 Nf4 Qd3+ Nc3 Qd8 Bg4 Ra7 Rc1 Rh5 Nb5 Nd7 b8Q Qc8 b7 Rh7 Qe5 Qc7 b8Q Bd6 f8Q Qb6 f7 Ne7 g8B Nd5 g7 Nc7 Qf5 Ne5 Bd3 f1N Qbe8+ Kb7 Rc3 Ng6 Qe3 Rh3 Bh7 Rh5 g8B Bg3 Bde2 Qc6 Bef3 Rh3 Qh6 Bf8 Nd6+ Ka8 Qf2 Qe4 c6 Qe8 Qdb1 d1Q+ Rc2 Qc1 Rc5 Qd7 Qbd3 Rh5 Qde3 Rg5 Ne6 Be5 Nf4 Ng3 Qh3 Qe7 Qhf1 Rh5 Qfe4 Qe6+ Qd5 Nh4 Bd3 Ng6 Bb5 Rb7 Bh7 Rb8 Qd1 Rd8 Qdf1 Nh4 Bhd3 Ng6 Rg1 h1Q Rg2 Qf6 Rh2 Qe6 Rh4 Rf5 Bfe2 Qe4 Bef3 Bh6 f8Q Rh5 Qg8 Bf8 Qf7 Rh8 Qf5 Rd7 Rh1 Rh2 Nf7 Rg2 Rh4 Rd8 Q2g1 Ra2 Qgf2 Nh1 Nh5 Bh2 Nf4 Ng3 Qc4 Qe1 Qh1 Rd5 Qcc1 Qd2 Qcf1 Qc1 Bde2 Rdd2+ Bec4 Qf6 Bd3 Qfe6+
7k/BP4bq/NB1R2Q1/1Bn2Rbn/R1r3q1/p6r/Kb2QB2/2RRq2N w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 d4 Kf7 Kd2 Kg7 Kc3 c5 Kb3 a5 d6 h5 g6 e5 d5 a4+ Ka2 h4 b4 a3 f6+ Kh6 b6 h3 d7 h2 d6 c4 f7 Kg7 g5 c3 b5 c2 b7 e4 b6 e3 Ne2 f3 Nd2 f2 Ng3 e2 Nde4 e1B Bb5 f1Q Be3 c1B Nc5 Rh6 Qe2 Qg1 Bf2 Be7 f8R Ba5 Na6 Bcd2 Rd1 Qc7 d8B Bab4 d7 Rh7 Rf5 Bbc3 Rc1 Qg2 Rhd1 Bb2 Nh1 Bdc3 Rd6 Kh8 Rdd1 Nc6 b8B Qg4 b7 Nf6 Bba7 Ne5 Rd6 Qa5 Bdb6 Rc8 Rdd1 Nd3 d8R+ Ng8 Rd4 Nc5 Ra4 Nf6 Rd6 Rh3 g7+ Kh7 g8R Nh5 Rg7+ Kh8 g6 Bg5 Rgd7 Bg7 Rdd1 Qe1 R7d3 Re8 Rd6 Re4 Qf3 Bf8 Qe2 Rc4 g7+ Kg8 R1d5 Rg3 Re6 Nf4 Red6 Rb3 Ng3 h1Q Rd3 Qh7 Rdd1 Nh5 Nh1 Rh3 Bc7 Bfe7 Bcb6 Bef6 Rfd5 Kf7 Rf5 Kg6 g8Q+ Kh6 Qge8 Kg7 Qf7+ Kh8 Qg6 Bg7
7B/kN1QBN1n/1p2n3/Nb1b4/3rQ1R1/n2qrP2/5Rn1/KB1Bn1NN w - - 0 1 legal: proof: g4 a5 c4 f5 e4 g5 exf5 d5 cxd5 e6 b4 axb4 h4 Na6 hxg5 Bh6 f6 Bf8 f3 Bc5 g6 Bf8 g5 Bg7 fxg7 Nb8 d4 Kd7 Kd2 c5 Kc2 Kc7 Kb2 Kb6 a4 h5 d6 c4 d7 b3 a5+ Ka7 a6 e5 d5 b6 d6 e4 Rh2 h4 Nc3 h3 Ra4 e3 Ne4 c3+ Ka1 c2 Be2 Nf6 g8B Rh4 g7 Bb7 g6 Nh7 Rf2 h2 Ng3 h1B Bb2 Bg2 Nh1 c1N Bd5 Bf1 g8N Bc6 g7 Nd3 Ne7 Nf4 g8N Ng2 Bh8 Re4 Bd3 e2 Nh6 e1N Nf7 Bb7 B5c4 Nc6 Be6 Re5 Rg4 Kb8 Bc2 Rc5 Bef5 Bc4 Qd2 Rb5 Bd1 Nd4 Be4 Bc6 a7+ Kb7 Bd3 Rd5 B3c2 Ba4 Nc6 Bab5 Bf5 Ne6 Bd3 Qc8 d8B Qd7 Be7 Re5 B3c2 Re3 Qd3 Qd8 d7 Rc8 Qe4 Ka6 Na5 b2+ Kb1 Bb3 Bd3 Rc4 B3c2 Qc8 d8N Rd4 Bd3 Bd5 B3c2 Rb3 Ka2 b1N Ka1 Na3 Bb1 Re3 Ndb7 Ba4 a8Q+ Kb5 Qb8 Ka6 Bd6 Bb5 Qc7 Ka7 Qd7 Qc2 Be7 Qd3
rr4bn/QRNB1kn1/1q1Q1n2/bK1R3r/R2B1NRN/2p3P1/R2n4/6N1 w - - 0 1 illegal: No possible last move
N3b3/4R2r/q1Q4B/bKBBB1Q1/P2bR3/1n1n1knN/p2r3B/1b1N1N2 w - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b3 a5 Bg2 a4 Bh3 a3 Bf1 Qd7 Ne2 Na6 Ng1 Qa4 bxa4 Nb4 Qg4 Nxa2 Qf3 Rb8 Qd1 Ra8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 h4 e5 d4 g5 f6 c5 d6 g4 f5 g3 h6 b6 h7 g2 f7 Bh6 f8N Be3 f6 Bd7 d5 Be6 d7 Rd8 f7 Bd2 h5 Ke3 h6 e4 Kb5 c4 d6 c3 Bc4 c2 Nf3 g1N Rh4 Kf2 Ng6 e3 f8B e2 Nh2 e1Q Bd5 Bc3 Nf1 Nf3 Nf4 Ba5 Nc3 Ne7 Nh3+ Kg2 Qd4 Qe2+ Qc4 Nb4 Re4 a2 Nd1 Nd3 Qc6 Bf7 Ba3 c1B Bc5 Bb2 Rb1 Rc8 d8Q Nf5 d7 Ng3 Qg5 Bd4 d8N Be8 Ne6 Nd2 Nc7 Nb3 Na8 Kf3 Ra1 Rc7 Rc1 Rg8 h8B Rh7 Be5 Rgh8 Ra1 Rd7 h7 Rd6 Ka6 b5 Bh6 b4 Bf4 Rg8 h8B Rg7 Rb1 Rh7 Kb5 Ba1 Be6 Nf5 Nb2 Ne1+ Rc4+ Qe4 Ka6 Rd2 Bh2 Ng3 Bf7 Qd5 Bg8 Nd3 Re1 Bc7 Rh4 Ba5 Nd1 Bc3 Re5 Bd4 Rhe4 Qd8 Re7 Qc8+ Kb5 Qb7+ Kc4 Qa7 Be5 Qa6+ Qb5 Nbc1 Bd5 b3 Rc7 b2 Re7 Qd6 Qb7 b1B Qc8 Qb6 Qc6 Qa7 Kb5 Nb3 Qg7 Re2 Qg6 Rd2 Qg5 Qa6+
qQ5q/1RRR1NN1/2bK3n/4qp2/N2Q1P1B/6rn/n1b1BR2/1N1N2bk w - - 0 1 legal: proof: d4 c5 b4 g5 bxc5 a5 a4 b5 axb5 e5 dxe5 Ra7 h4 Ra6 bxa6 gxh4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 c4 f5 a7 h5 a8Q h3 e4+ Kh4 g4 d6 e6 a4 e5 a3 e7 a2 e8R h2 e6 Nc6 g5 Na7 c6 Qd7 c7 Qh7 g6 Be7 c5 Bf6 g7 Nb5 e7 Nh6 g8N Bd7 c8R Bd4 Qb8 Bc6+ Ke6 d5 Be2 Be3 Red8 d4 e8N d3 Rc7 d2 Nh3 Nc3 Rf1 h1N Kd6 Qg7 f4 Kg3 Ba3 Kg2 Rdd7 h4 Nf2 h3 Bb4 Qh7 Ng7 h2 Qa4 Bd4 Nd1 Nf2 Rb7 Nh3 Rf2+ Kh1 Ba3 Ng4 Nh6 Rg8 Nf7 Nh6 Bb2 Be3 Qd4 Qh8 Ba3 Kg1 Bb4 h1Q Ba5 Qf3 Bd8 Kh1 Bh4 Qg2 Na3 Qf3 Rc1 a1Q Nb1 Qe4 Rc2 Qa8 Rc1 Na2 Rc3 Bd5 c6 Qe8 c7 Bc6 c8N Qe4 Rg2 Bg1 Nb6 Qe3 Na4 Qe8 Nh5 Rg3 Ng7 Qe3 Rf2 Qe4 Ne3 d1B Rc4 Bc2 Nd1 Bd5 Rc8 Bc6 Rcc7 Qe5+
2qr2r1/4QRN1/n1q3B1/1kPb1Nqn/1rpQ1nBR/6Q1/1R1Q1QK1/2R5 w - - 0 1 illegal: No possible last move
1q1k2nK/2N4Q/1pBq1RR1/nr6/P1q3NN/R1r3BR/5N2/r2Rn1bQ w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 Ke2 c5 Ke3 e5 Ke4 h5 a4 b3 d4 h4 g7 b2 f6 b6 Kf5 c4 Kg6 e4 f7+ Kd7 d6 e3 d5 e2 Rh3 e1R Bf4 c3 Nf3 c2 Nbd2 c1Q Bg3 b1Q+ Ne4 Qbc2 Ra3 Q2b2 Nf2 Rh7 Bg2 Re8 Qh1 Kc8 d7+ Kb7 d6 Be7 f8R Qcd2 Rf6 Qc8 d8R Rh5 d7 Bc5 Kf7 Nc6 g6 Qb8 g5 Re7+ Kf8 Re1+ Kf7 Nge7 g8N Na5 Kg7 Qbc2 Nh6 Qc4 Kh8 Ng8 g7 Qdd6 g6 Rg5 Nhg4 Kc7 Qf1 Ra1 Qh1 Nh6 g8R Rh5 Nd3 Bg1 g7 Rb5 Ndf2 Ra7 Nd4 Ra8 Bc6 Ra7 Nf3 Ra8 Rgf8 Ng8 Rg6 Ra7 Rff6 Rb7 Rh2 h3 Nh4 Ra7 Rdf8 Ra8 d8N Kc8 R8f7 Ra7 Ne6 Rc7 Bg2 Rc6 Nc7 Rcc5 Bc6 Kd8 Rg2 h2 Rff3 Rb3 R7f6 Rc3 Rd3 Rb5 Rd1 Qb4 Be5 Qc4 Rg3 Qd7 Rh3 Qd6 Qe4 h1N Bh2 Ng3 Qh1 Ne4 Bg3 Nc5 Ba8 Nh6 Bc6 Nd3 g8Q+ Ke7 Kg7 Ne1 Qh7 Ng8 Kh8+ Kd8
4B3/2Nq1n1q/rBk1B2Q/Q1N2r2/3Q4/BnnR1n1R/1P2bp1K/Q1Q4n w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Be7 gxf5 g4 h4 Bg5 hxg5 exf4 Kf2 Kd7 Kg2 c5 d4 h5 e4 a5 f6 a4 b6 g3 b7 a3 f7 a2 f8B h4 e5 c4 e6+ Kc7 d6+ Kb6 d7 c3 d5 c2 d6 Nh6 g6 Ng4 e7 Qe8 d8Q+ Kc6 g7 Ra3 g8Q Bf5 d7 Be6 Nc3 Ne5 Ne4 Na6 b8Q Bb3 Qa7 Nc7 Qg7 Rh5 Nh3 Nf7 Nhg5 Bc4 Rh3 Nb5 Qda5 Be2 d8Q Nc3 Nc5 Qd7 Be3 c1Q e8B Qc2 Nge6 Rf5 Qc1 f3+ Kg1 g2 Nc7 f2+ Kh2 g1N Qh6+ Rf6 Bd4 Qh7 Rd3 Ra4 Bh3 Ra3 Rb1 a1N Be6 Nb3 Ra1 Ra4 Ra3 h3 Be3 Rf5 Qdf6 Rb4 Qd4 Rb6 Be7 Ra6 Bd6 Nd2 Rb3 Nb5 Qaa1 Nc3 Ra3 Nb3 Bf8 Rb6 Qa5 Ra6 Na4 Rf3 Qdb4 Nd2 Rd4 Bf1 Kh1 h2 Rd5 Bb5 Bb6 Be2 Rh5 Rf5 Rh3 Ngf3 Qd4 Ra7 Bfc5 Nce4 Rd3 Nc3 Ba3 Nb3 Nc5 Ra8 Kg2 Ra6 Kg3 h1N+ Kg2 Ne1+ Kh2 Nf3+
r1R2Rnr/3QQKnB/k1r1BQ1Q/1Nr5/1rq3R1/1pRPq3/6b1/N2R4 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 d5 cxd5 a4 f4 a3 f6 Nc6 g3 Na5 bxa3 Nc6 a4 Nb8 a5 Ra7 Bh3 Ra6 Bf1 Ra8 f5 h6 Ba3 e6 Bc5 Bd6 Be3 Be5 Bg5 Bf4 gxf4 hxg5 Kf2 Kd7 Kg3 c5 Kg4 Kc7 h4 b5 a4 Kb7 h5 b4 d6 c4 d7 b3 a6+ Ka7 a5 g6 f7 c3 f8R e5 h6 e4 f6 e3 f7 e2 h7 e1R f5 c2 f6 c1Q Ne2 Qc2 Bh3 Qc5 Nec3 Qe5 Rg1 Qde8 Na3 Re2 Rc1 Re3 Nc2 Qc5 Na1 Bb7 d8R Nc6 Rc8 Rb8 Nb5+ Ka8 a7 Nce7 Rc3 Bg2 d3 Kb7 a8R Re5 a6+ Kb6 a7 Ka6 Qc2 Nf5 Rd1 Ng7 Qe2 Rd5 Qe6+ Rb6 Qd7 Qee3 Rab8 Qc7 a8B Rc5 Be4 Qc6 Rb7 Qd5 Rbc7 Qdd4 Rc6 Qc4 Rd6 Rbc6 Rd4 Qb4 Rfd8 Qa4 f8Q Qc4 f7 Qd2 Kg3 g4 Kh4 g3 Be6 Qe3 Qfe7 g5+ Kg4 Bf1 f8Q g2 Qff6 g1R+ Bg2 Rh1 Be4 Bg2 Rf8 Re1 Qh6 Re2 Bg6 Ra2 Re4 Ra4 Ref4 Rb4 Re4 Ne8 Kh5 g4+ Bgf5 g3 Kg6 Ng7 Kf7 Bf3 Rh4 g2 Rg4 g1R Be4 Bg2 Bf5 Rh1 Bg6 Nf6 Be4 Rg8 h8Q Rh2 Q8h7 Rh8 Qf5 Ng8 Qff6 Rhh5 Bh7 Rhd5 Qc7 Rd8 Qcd7 Re8 Rc7 Rb8 Rcc8 Ra8
1R2q2N/3b1BR1/2r2Q2/2kp4/1bBr1R2/1P5n/1Krr1QqB/2B1RBrN w - - 0 1 illegal: No possible last move, all moves rejected
qr2bnBq/1N3NQ1/1B5B/2r3B1/3N4/1pP1qR1K/2B1nRQr/2N1k1r1 w - - 0 1 illegal: No possible last move, all moves rejected
3bN2Q/kq6/q1q4N/N2pKQn1/1Pbn4/1BQ4N/BN4Rr/1n1RqQ2 w - - 0 1 legal: proof: a4 a5 g4 f5 gxf5 c5 d4 b5 axb5 h6 dxc5 Ba6 e4 Bc8 f4 Qb6 e5 Kd8 f6 Qc7 f5 Ra6 Bg5 hxg5 f7 Rf6 exf6 Qb6 Ra2 Kc7 Ra3 Kb7 Ra2 Qd8 Ra1 Kc7 Ke2 Kb7 Ke3 e5 Ke4 g4 c4 g5 h4 g3 b4 d6 h5 a4 c6+ Kb6 c7 g4 c5+ Ka7 b6+ Ka8 b7+ Ka7 h6 g2 c6 a3 h7 a2 Qd2 g3 Bc4 Bg7 f8Q Nd7 b8N Nb6 f7 Ka8 f6 Qd7 Bb3 Nh6 Nc3 Nf5 Nd1 Bh6 Rh2 Ba6 c8B Qb7 Nh3 g1Q Nb2 g2 Qc3 Bg5 Bce6 Nc4 Rd1 a1Q Qc8 Qc1 f8Q Qga7 f7 g1N Rg2 Nd4 Qh6 Bh4 f8Q Na3 Qf1 Bc4 Qg7 Qba6 c7 Ngf3 Nc6+ Qb8 Bg8 Nb1 Qf5 Bd8 Na5 Ka7 Be6 Qbb7+ Bd5 Rg8 h8N Qh6 Nf7 Rh8 Qg8 Rh7 Qh8 Ng5+ Ke3 e4 Kf4 Qe6 Nh6 e3 Ba2 e2 c8N+ Kb8 Bb3 e1Q Ba2 Qe8 Be6 Qec6 Bf7 Bb5 Bfb3 d5 Nd6 Ka7 Ne8 Bc4 Nf7 Qd2+ Ke5 Rh4 Nh6 Qc1 Ng1 Rh2 Nh3 Qd2 Q5f3 Qf2 Qf5 Qe1+
4Nn2/3p4/2Rn1qBR/2qn1Q2/1R4K1/2NPB3/1rr1Rb2/nQqB1BkB w - - 0 1 legal: proof: f4 b5 e4 f5 g4 c5 b4 g5 fxg5 f4 bxc5 Ba6 a4 Bb7 axb5 Bd5 h4 Be6 h5 Bf5 h6 Bxh6 exf5 Bf8 Kf2 Kf7 Kf3 h5 c4 a5 g6+ Kf6 g5+ Ke5 g7 Kd4 f6 e5 c6 a4 f7 h4 d3 e4+ Kg4 a3 b6 e3 c7 e2 c8B e1N c5 f3 c6 f2 b7 a2 c7 h3 g6 h2 Na3 Qf6 Nc4 Nf3 Nd6 Na6 b8R Ne7 g8B Nf5 g7 N3h4 Bb7 Ng6 c8R Nc7 Ne8 Bc5 f8Q Nd6 Bb3 Nd5 g8B Ra4 Bh7 Rb4 Qf7 Nf8 Rc6 Rb6 Ba4 Rb2 Bg6 Rc2 Rb1 a1N Rb2 Rh5 Qe6 Re5 Bb3 Ree2 Qf5 Red2 Ra2 Ke3 Ne2 Qe5 Nc3 Rb2 Rg1 h1Q Ba8 Qhh8 Rb4 Qhf6 Rh1 Rc2 Rh6 Bb6 Bg2 f1Q Bh3 Qh1 Bf1 Rb2 Qc2 Ba7 Qb1 Qd4+ Qe4+ Kf2 Bd1 Qc5 Qf5+ Kg1 Bb7 Rdc2 Bf4 Qa5 Bd2 Bf2 Be3 Qc5 Ba8 Rb3 Rb2 Rc1 Re2 Rc2 Bb7 Rbb2 Ra6 Ne7 Be4 Nd5 Rc6 Qh2 Bh1 Qhe5 Bf4 Qee3 Bg5 Qd2 Be3 Qc1
8/1P2B3/1q1B2rQ/1p1KB2q/1r3Bn1/bN1RrNnk/3Bq1Rr/Q1R2R2 w - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 f5 exf5 c6 a4 Qa5 axb5 Kd8 b6 Ke8 b7 Qd8 c4 d6 b4 Qb6 b5 Qc7 b6 Qd8 c5 Be6 Bb5 cxb5 d3 Bc4 dxc4 Qd7 Ra6 Qc8 Ra1 Qd8 Kd2 Kf7 Ke3 Kf6 Kd4 a5 h4 e5+ Kd5 g5 f4 a4 c6 e4 c7 e3 c8R e2 c5 e1R c6 g4 h6 a3 h7 g3 c7 g2 h5 a2 h6 Re8 Nd2 Re6 Rh3 Re4 Ngf3 g1R Nb3 Rge1 Bd2 Na6 b8B R1e3 b7 Rb4 Qh1 Nc5 Rf1 a1Q Qh2 Kf7 f6 Kg6 f7 Ra6 f5+ Kf6 Rg3 Qb2 Rg2 Ne4 Qg1 Be7 f8B Ng3 Qh1 Qc2 Qh3 Qd1 Qh2 Qe2 Qh5 Qe8 Rd8 Qg6 c8R Rb6 Qh1 Qh5 Rcc1 Rc6 Nh4 Kg5 Nf3+ Kg4 Bc7 Qg6 f6 Rb6 Qg1 Kh3 f7 Ra6 Bg7 Rc6 f8B Rb6 Be5 Nf6+ Ke6 d5+ Bd6 d4 Rd7 Bd8 Be7 Ng4+ Kd5 d3 Bf4 Bc7 Rd8 Ra6 Rd7 Bb6 Rd8 Bd4 Rd7 Bb2 Rd8 Ba3 Rd7 Rc8 h8B Rc2 h7 Qh5+ Bhe5 Qf2 Bc3 d2 h8Q d1Q+ Bd2 Qde2 Qh6 Rb6 Bc5 Rg6 Bcd6 Rec3 Rd8 Qb6 Qd4 Re3 Qa1 Rc7 Rc3 Rc6 Rd3 Rc1 Rc8 Re1 Rc1 Rd1 Rff2 Rh1 Rff1 Rh2
kn1nR1R1/4B3/1b3rQQ/1n1R2K1/1bB1b1pb/4QP2/5NnQ/2Nq1QR1 w - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 f5 e4 d5 exf5 b5 axb5 a4 cxd5 Ra5 bxa5 Rh4 Bh3 Rh6 Bf1 Rh8 Ke2 Kd7 Ke3 e5 d4 c5 h4 Kc7 h5 Kb7 d6 g5 f3 c4 d7 e4 h6 g3 f6 g2 d5 g4 Kf4 a3 d6 a2 h7 c3 a6+ Ka8 b6 e3 b7+ Ka7 f7 c2 Rh5 e2 Rd5 e1N Bc4 Nc6 b8R Qc7 d8Q Qb7 d7 Qc7+ Kg5 Nh6 Nc3 Bb7 Nh3 g1B Nf2 Qd6 Ne2 Ng2 Ba3 c1N Qe8 Nb3 d8R Nbd4 Nc1 Nb5 Qf1 Bh2 Qe4 Bg3 Re8 Ba8 Rbc8 Nb8 Qg6 Rg8 Rb1 a1B h8Q Bd4 Ra1 Qd8+ Be7 Bb6 Qd4 Bc6 Qe3 Ka8 a7 Bb7 Rd7 Be4 Rd5 Nf5 Rb1 Nfd4 Ra1 Nc6 Rb1 Bg7 f8Q Bc3 Qh6 Rf8 Qh2 Rf4 Rg8 Qd7 Rce8 Rf6 Qgh6 Bb4 Qg6 Nd8 Qhh6 Kb7 a8Q+ Kc8 Qa1 Kb7 Qb2 Ka8 Qe5 Qa7 Qd6 Qa4 Qh2 Qd1 Qgh6 Rf7 Qdg6 Rf6 Qfh1 Kb7 Nb3 Qe2 Rbd1 Qd2 Nc1 Ka8 Qe1 Qc2 Q1e2 Qa4 Rg1 Qd1 Qf1 Bh4+
NN1K2B1/2qBRP1r/5B1p/nQ3N2/QB1n2Nr/N1nn4/2R2n2/1rq3k1 w - - 0 1 legal: proof: f4 b5 e4 f5 a4 d5 axb5 g5 c4 fxe4 h3 Bg7 cxd5 Bg4 g3 Be5 f5 Bf4 gxf4 Bf3 Be2 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd6 Qe2 Qd7 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Kc5 a5 b4 a4 d4 e3 b6 g2 d6 a3 d7 e2 b5 e1N d5 a2 g5+ Ke7 b7 e4 b6 c6 d6+ Kf7 f6 Ke6 f7 Kf5 f8B h6 g6 e3 g7 Ke4 f5 e2 f6 Nc2 f7 e1N Rh2 Ne7 g8B Qe8 d8N Nb4 d7 Nf3 Kd6 c5 Kc7 c4 Ne2 g1Q Qa4 c3 Bh3 c2 Ne6 Ne1 d8N Kf3 Bg5 c1R+ Nc6 Nbd3 Na3 Rb1 Bf6 Nf2 Ng3 Rh7 Nf5 Ned3 Ne5+ Ke2 Ng4 Qc6+ Kd8 Nd5 Nc7 Nc3 Bb4 Qc1 Rg2 Ra6 Na8 Qc7+ Ke8 Nc6 b8N Nd4 b7 Rc6 Rh2 Rc4 Rg2 Qg3 Kd7 Kf1 Kd8 Nfd1 Rc2+ Kg1 Qd7 N1f2 Qa4 Rb3 Rb1 a1N Rbb2 Qgf4 Re2 Qg3 Rbc2 Rb1 Re7 Qd6+ Nd7 Qh2 b8Q Nab3 Qbb5 Na5 Nb8 Ndb3 Ne5 Rh4 Ng4 Nd4 Bg2 Qd1 Bc6 Qc1 Bd7 Qc7+
1Brq4/QnBn2n1/NQQRK3/2N4P/1RQq1q2/2q2B1B/pr6/2krQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 h4 Nh3 g5 Ng1 Bf5 Ra6 Bg6 Ra1 Bh5 gxh5 g4 Nh3 g3 Ng1 g2 Ra4 Bd6 Ra1 Bc5 Qa4 Qf6 Kd1 Bf2 Kc2 Nh6 Kd3 Qd6 Qd1 Qd8 Kc2 Ng8 Nc3 Qd6 Nb1 Bg3 hxg3 Qc5+ Kd3 Na6 Ke4 Qc6 Kf3 Qf6 Kf2 Nb8 Ke1 Qd8 Kf2 Kd7 Kf3 Kd6 Kg4 Ke5 e4 Kd4 Kf5 a5 b4 c5 d6 a4 b6 a3 g4 f3 e5 f6 e6 f2 e7 h3 e8Q c4 d7 a2 g5 c3 b7 h2 b5 c2 g6 Ra4 g7 Ra7 b6 Rh6 Nh3 g1Q Na3 Qg3 Nf4 Qg5+ Ke6 Qc7 d8Q+ Ke4 d4 Ra5 d5 Nd7 b8Q Rc5 d6 Ne7 g8B Nf5 Bh3 f1Q b7 Qfg1 Qa7 Qd4 b8B Qg3 Bb2 Ke3 Rb1 c1N Qc8 Qd8 Nd3 Nb3 Nb5 Na5 Nc7 Nb7 Na6 Rc1 Qf1 Kd2 Ndc5 Qgc3 Qc6 Rd1 Qf7 Rh8 Qe1+ Kc2 Rg1 h1R Rg6 Rh2 Bc1 Rf2 Bf4 Rfd2 Rb4 Kc1 Be5 Rb2 Bh7 Qc7 Bg3 Rc8 Bh2 Qd8 Rh6 Ng3 Be4 f5 Bf3 f4 Qg8 Nf5 Bg3 Nf6 d7 Ng7+ Kf7 Qa5 d8Q Nd7 Rd6 Qb6 Ke7 Qa5 Qc4 Qc7 Bh1 f3 Bh2 f2 Bf3 Qa5 Qdb6 f1Q Bg3 Ne8 Ke6 Qff2 Qbb5 Qd8 Qbb6 Qfd2 Rd5 Q2g5 Bgc7 Qgf4 Rd6 Ng7#
5R2/4nQ1R/qp3n2/2nQ1qqQ/1kP1N3/nrb2B1N/4QQ1B/1qB3BK w - - 0 1 legal: proof: d4 f5 b4 c5 dxc5 a5 e4 axb4 exf5 Nc6 f4 Nb8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Ke4 Bd2 Kd5 Bc1+ Kc6 Be2 g5 Bf1 b6 h3 Ba6 f6 Bd3 Be2 Bf5 gxf5 g4 Bf1 g3 Bf4 Ra3 Bc1 Rc3 Ba3 Rc4 Bc1 Rg4 hxg4 Qc8 Bd3 Qe8 Bf1 Qd8 a4 h5 c4 e5 a5 d5 g5 h4 g6 h3 a6 g2 Kf2 h2 a7 e4 a8Q+ Kd7 c6+ Kd6 c7 Kc5 c8Q+ Nc6 g7 b3 Qe2 d4 Nc3 d3 Nh3 Qd7 Qe8 Nce7 Qd5+ Kb4 Ra8 e3+ Kg3 g1Q+ Bg2 d2 Ne4 d1Q Kf3 Nh6 g8Q Bg7 f8B b2 f7 b1N f6 Ng4 Qh7 Qc8 Qhh5 Na3 Kg3 Qgf1 Bf3 Qd2 Qf2 Qfd3 Kg2 e2 Rb8 Rh7 Ra8 Bh8 Bh6 e1Q f8Q Qa6 f7 Bc3 Be3 Nf6 Qg7 Qed1 f8B Q1c2 Qgg4 Qb1 Qef7 Rh6 Bd4 Qg5 Bg7 Rh8 Rf8 Rg8 Nd6 Qdf5 Ne4 Nd7 Bge5 Nf6 Re1 h1N Bh2 Ng3 Rh1 Nf1 Kg1 Nd2 Qgg2 Nb3 Qe2 Rg7 Qg3 Qgg4 Kg2 Qgf4 Bdg1 Rh7 Qgh4 Nc5 Qhf2 Q4g5+ Qg4 Rg7 Nf4 Qb2 Bg3 Be5 Rh7 Qa2 Nh3 Qgg6 Kh1 Qb1 B3h2 Qgh5 Qgh4 Rg3 Bg4 Rb3 Bf3 Qhg5 Qhh5 Bc3
RrN1r1Rr/QR2qrq1/3N2qB/R2B3P/1B5R/1K6/Qpn3q1/3Bnk2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 h4 Ke2 g5 Qc2 Be6 Kd1 Bh6 Qc4 Bf7 Qe4 Bh5 gxh5 g4 Qe2 g3 Ke1 g2 Qg4 Bf4 Qd1 Bg3 hxg3 Qd6 Be2 Qd7 Bf1 Qd8 d4 Kf7 Kd2 Kf6 Kc2 e5 f4 c5 a4 b5 a5 c4 d6 e4 a6 c3 d5 h3 g4 h2 g5+ Kg7 f6+ Kh7 f5 e3 a7 e2 f7 e1Q f8Q Nh6 d7 Qe5 f6 Qe6 f7 Qee7 d6 Nf5 Nd2 Qde8 d8R Ne3+ Kb3 c2 d7 Na6 Nh3 g1R Be2 Rf1 Nf4 Ng2 Ne4 Ne1 Rb8 Rf2 Be3 c1Q d8R Qcc7 Qc2 Qce5 Bd1 Qg7 g6+ Kh6 Nd6 Kg5 Qb1 Kh4 Nd5 Kh3 Bh6 Kg2 Rb7 Rc8 a8R Qc6 Rdd7 Re8 Ra5 Rf4 Rdc7 Kf2 Rg1 h1Q Nb6 Qhg2 Nbc8 Qb6 Rc4 Rf3+ Ka2 b3+ Ka3 Nb4 Rh4 Rf4 Qa2+ b2 Kb3 Nbc2 Qg8 b4 f8B Rf7 Qh7 Qgf6 g7 b1R+ Qb2 Qbc6 g8B Qgg7 Rg3 Qg2 Rgg5 Qfg6 Rgg4 Rc1 Qa2 Kf1 Rgg5 Rf2 Bd5 Rf7 Kc4 b3 Rgg4 b2 Kb3 Qg8 Qg7 Ra1 Qd4 Q8g7 Qa7 Qd8 Nf5 Rc1 Bb4 Qe7 Nfd6 Ne3 Nb6 Rcc8 Rg3 Rb8 Nbc8 N3c2 Rg5 Q7h7 Rgg4 Q6e4 Rg7 Qeg6 Rg8 Qhg7
3n4/NrB1QpBK/1Q1rrR2/1B5b/3Bb1qp/2n2Q1P/1R2b2B/k3N2Q w - - 0 1 legal: proof: f4 b5 c4 e5 fxe5 c5 cxb5 h5 d4 cxd4 g4 g6 b4 Qb6 a4 Nf6 g5 Ke7 a5 Qb7 b6 Qf3 b5 Bh6 gxh6 Qb7 a6 Ke8 axb7 Ng8 Kd2 Ke7 e4 Ke6 h7 d5 h3 a5 Rh2 h4 Qf3 d3 Ke3 d2 Kf4 d1B Kg5 d4 Bb2 a4 Nc3 Nf6 Kh6 Re8 h8B g5 Bg7 Nd5 Kh7 Nc6 b8Q a3 b7 g4 b6 g3 Nb5 a2 Na7 d3 Bd4 d2 Bb5 Bc2 Rf1 d1B Rg2 Bb1 Rb2 a1R Qh1 g2 Nf3 g1Q Ne1 Qg4 Rf6+ Ke7 e6 Nd8 Qg3 Be2 b8B Ra6 b7 Rd6 Bc7 Nc3 b8B Bc2 Qd3 Bcd1 e5 Bb7 Qdf3 Bd5 Ba5 Bb7 Bbc7 Rb8 Bab6 Ba8 Bg1 Bd5 Bbd4 Rb7 Bh2 Rg8 Bh8 Rg6 Bg7 Be4 Nc6+ Ke8 e7 Kd7 Na7+ Nc6 Rf5 Ke6 e8Q+ Kd5 Rf6 Nd8 e6 Rh6+ Kg8 Rg6 e7 Re6 Kh7 Rd6 Bd7 Kc4 Qh8 Re6 e8Q Rd6 Qe7 Re6 Rc2 Kb3 Bb5 Rd6 Rb2+ Ka3 Rb3+ Ka2 Rb2+ Ka1 Qhe8 Re6 Qc6 Rd6 Rf5 Rge6 Qb6 Bc6 Rf6 Be4+ Kh8 Bg6 Kg8 Bdc2 Kh8 Bce4 Kg8 Bh5 Kh8 Bd5 Kh7 Be4+
R3QBR1/BQ1r3k/2R3pp/1NK1nR1b/2b3N1/1P2rq2/3qQ1r1/n3QQ2 w - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 f5 axb5 f4 d6 f3 d7+ Kf7 gxf3 e6 f4 Kf6 f5 Ke7 h4 g6 d4 Nc6 h5 Bg7 h6 Bf6 d5 Bg7 hxg7 Kf6 d6 Kf7 Bg2 Nb8 Bd5 exd5 Kd2 c5 Kd3 a5 f4 a4 e4 d4 Kc4 d3 b6 h6 b7 d2 f6 a3 f5 a2 b3 Nc6 b8Q Qc7 d8Q Nb4 d7 Ra4 e5 Ra6 Rh5 Bb7 Nh3 Rb6 Nf2 Bg2 Na3 Rb7 Nb5 Bf1+ Qe2 d1B Ng4 Nc2 Be3 Qc6 Qa5 Ne7 d8R Re8 g8R Rd7 Rc1 a1R Qb7 Qf3 Ra8 Ra2 Qe1 Nc6 Bf2 Ree7 Rg5 Na1 Rc3 Rd3 Bd4 Re3 Rc2 Qf4 Kd5 c4 Ba7 c3 Kc5 Qf3 Rc1 Rd2 Rh5 c2 Rg5 Nb8 Rh5 Rd8 Rg5 Rf8 e6+ Ke8 Qc4 Qh3 f7+ Kd8 f6 Rd7 Nf2 Bh5 Kb6 Bd3 Ng4 Qf1 Rd1 c1Q Re5 Be2 Rd6 Qd2 Kc5 Qh3 Qf4 Bc4 Qff2 Rg3 Red5 Re8 f8Q Rg2 f7 Qhc3 Qfe2 Qf6 Qg7 Ke7 Rg5 Qff4 Qge5 Qf5 Q2f1 Qf3 Rf5 Nc6 Q5e2 Nd8 Rg7 Kf8 Rc6 Ree7 Rh7 Re8 Rh8+ Kg7 Rg8+ Kh7 f8B Nf7 e7 Rd3 Bg7 Red8 e8Q R8d7 Bf8 Ne5 Bb6 Rc3 Ba7 Re3
N2qB2N/5bn1/8/B1r1Rqk1/1pB1b3/3RP2p/K1QqnQ1N/NB3b1B w - - 0 1 legal: proof: c4 b5 b4 a5 g4 axb4 f4 d5 cxd5 e5 fxe5 f5 Na3 g5 Nb1 f4 h3 Be7 h4 Ra6 Qb3 Rf6 Qd1 Rf5 gxf5 g4 Bb2 Nh6 Bc1 Bg5 hxg5 Ng8 a4 Kf7 d4 h5 Kd2 c5 Kc2 c4 Kb2 b3 g6+ Ke7 d6+ Kd7 d5 f3 f6 f2 f7 h4 f8Q g3 g7 g2 a5 h3 e3 Qg5 a6 Qh5 a7 Qh7 a8B Qh4 Qc2 Qe7 Ra5 Qe8 e6+ Kd8 d7 Rh6 e7+ Kc7 d8N Kd7 d6 Nf6 g8B Rh5 Bd2 Nc6 Bh7 Nd4 Ne6 Rc5 Nf3 g1Q Nc7 Qg5 Na3 Qf5 Nh2 c3+ Kb1 b2 Ka2 Qd8 Bc4 Ne2 Rd1 f1B Bh1 Ba6 Na8 Nh5 Qf6 Ng7 e8B+ Kc8 Qf7 Bb7 Be1 Bd5 Rd3 Be6 Qf6 Bd5 Qh4 Bf7 Qf2 b1B+ Kb3 Qc7 d7+ Kd8 Bd2 Ke7 d8N Kf6 Bg6 Bg8 Nf7 Qd8 Nh8 Bd5 Ra7 Be4 Re7 Kg5 Re5 Bd5 Qb2 c2 Ba5 c1Q Nc2 b4 Na1 Bc2+ Ka2 Qd2 Qb1 Bf7 Qc1 Ba4+ Qc2 Bc6 Rc3 Kf6 Qb2 Qf4 Bb1 Be4 Rd3 Qf5 Qc2 Kg5
1rBbB2q/Kqp1n3/1Q2RrN1/7N/2qPR1Rp/3r2n1/2NkNR1N/5Q2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 Bd7 b3 Nc6 Ba3 Nd4 Bd6 Nc6 Bf4 gxf4 h3 Nb8 g5 Be6 Ra4 Bf7 Ra3 Bh5 Ra1 Bg4 hxg4 Qc8 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 g6 Ke3 b4 h5 f7 e5 d6 a5 d7 e4 g5 h4 b6 a4 Kb5 f3 g7 a3 f6 f2 g6 a2 b7 Bd6 f8N Be5 f7 Rh6 Bh3 f1Q+ Ne2 Bh2 Nd2 Qff6 Nf3 Qe8 Qf1 Qfe6 Rg1 Ra6 Rg4 Bg1 Nh2 Ra8 Re1 Nf6 g8B a1R g7 Nc6 b8R Rh7 d8N R1a7 Ng6 Ne7+ Nc6 Ned5 f8R Kd2 Bf7 e3 g8N Bf2 Rb6 Nh5 Nf6 Ng3 Nh5 Ra3 Ra6 Q8c8 Be8 Rb8+ Rb6 Bg1 Rf2 Rd3 Ka5 Ne7 b5 Qe4 Nb4 Rf7 Re6 Rf6 b6 Qeb7 Ree4 Qe6 Nc2 Qg8 Kb5 Qh8 Ka5 Qc6 b7 Qc4 Nef4+ e2 Re6 Qd5+ Ka6 Qb3 Ka7 Qc4 Rf3 Be3 Rf2 Rd8 b8Q Rc8 Ng2 Bg5 Qb6 Rb8 N2f4 Kc3 Rb1 e1Q Ne2+ Kd2 Rb5 Qc1 Rbe5 Qb2 Ree4 Ra3+ Qa6 Nd5 Rgf4 Rf8 Rc6 Rd3 Bc8 Bd8 Rg4 Ne7 Rce6 Rf6 Qc6 Qbb5 Qc5 Qc6 Qb6 Qb7+
1BQ1nn1b/1r4Q1/2P1K2B/npbp2R1/3N1b1N/r2B2RR/3BBkr1/4R3 w - - 0 1 legal: proof: d4 f5 b4 c5 dxc5 a5 e4 axb4 exf5 Nc6 f4 Nb8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Ke4 Bd2 Kd5 Bc1+ Kc6 h3 Kc7 Bb2 g5 Bc1 b6 Bb5 Ba6 Bf1 Bd3 f6 Bf5 Qe2 Qc8 Qd2 Kd8 gxf5 g4 Qd4 g3 Qd1 Qa6 Kd2 Qc4 Ke1 Qg4 hxg4 Ra4 Bf4 Ra5 Bc1 Ra8 Ke2 Kc7 Kd3 Kc6 Kc4 h5 a4 e5 a5 e4 g5 g2 a6 h4 a7 b3 g6 b2 g7 e3 Nc3 b1N Be2 h3 Bd2 h2 Nb5 d6 Nd4+ Kd7 Kd5 b5 c4 Na3 c6+ Kc7 c5 Nd7 Ngf3 g1B Ke6 Rh3 Nh4 Rb8 a8B Rb7 Qe1 Be7 f8R Nc4 f7 Na5 Qg3 Ngf6 g8R Ne8 Re1 Bg5 f6 Bf4 Rg5 Bf2 Rhg1 h1R Rh8 R1h2 f8B Rg2 Bd3 e2 f7 B2e3 Bh6 Bf2 f8B B2e3 Rd1 e1B Be2 B1f2 Rde1 Be5 Rh7 Bh8 Bfg7 Bf4 Be5 Rb6 Qc3 Rb7 Qa1 Ra3 Rg3 Kb8 c7+ Ka7 c8Q B2e3 c6 d5 Bb8+ Kb6 Qb2 Ra7 Bb7 Kc5 Ba6 Rb7 Rg5 Rh2 R1g3 Rg2 Rf7 Bfe5 Rff3 B5f4 Rh3 Bg1 Rfg3 Bf2 Qb1 Bg1 Qh7 Bge3 Qg7 Bf2 Bh5 Kc4 Bf3 Kd3 Be2+ Ke4 Ndf3 Bb6 Nd4 Bc5 Qc7 Rg1 Kf7 Rb6 Bc8 Nf8 Bcg4 Rg2 Qc8 Nh7 Ke6 Rb7 Bb4 Rf3 Bh5 Ke3 Bg6 Kf2 Bd2 Ra3 Bgd3 Nf8+
Q2RB3/2Kn2b1/2Nr3B/RN1ppq2/n2Q2NN/1R2P2k/nb1n2R1/1nR5 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 a5 hxg5 c5 a4 cxd4 axb5 a4 b4 Nc6 g6 Ra5 bxa5 Bb7 g5 Nb8 f3 Be4 Bg2 Bf5 Bf1 Bg4 fxg4 Bh6 Be3 Bg7 Bc1 Bf8 Kd2 d5 Kd3 Kd7 c4 Ke6 b6 h5 a6 f5 g7 a3 g6 h4 g5 f4 a7 Kf5 a8Q Kg4 b7 h3 c5 a2 c6 f3 c7 f2 c8N e6 Nc3 h2 Ne7 Qd7 Nc6 Rh6 Nb5 Bd6 Nf3 Nf6 g8R Be5 g7 Ne4 g6 Nc3 Nh4 Na4 Rd8 Bf6 g8R e5 g7 Qf5+ Kd2 Nd7 b8R d3 Rb7 Nac5 Kc3 d2 Kb4 Na4 Ka5 Kg3 Bh3 f1N Bg4 Rg6 Bh5 Kh3 Rbb8 Rh6 Be8 Rg6 Rg1 h1N Ka6 Rh6 Kb7 Nhg3 Kc7 Ne4 Rg2 Nec3 Rf8 Be7 g8N Rd6 Nf6 Nb1 Ng4 Bf6 Rb7 Bg7 Ra7 Ne3 Ra5 Nc4 Qg1 d1N Qd4 Ndc3 Bh6 Ncd2 e3 Na3 Rf1 a1B Rc1 Na2 Rf7 Bb2 Rf6 Qe4 Rff1 Qf3 Rc3 Qf4 Rb3 Nab1 Rc1 Qf5
2RNk1K1/1RB1prqR/1Qb4R/PQnpN2n/r5B1/n7/1Br5/2n1B2R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c3 b5 Qd4 b3 Qf6 b4 Qa6 b2 Qa4 g6 Ke2 Bh6 Qd1 b3 Ke1 Bf4 Qf3 Bc7 Qd5 Ba5 Qd1 Bb4 cxb4 Kf7 Bh3 Kf8 Bf1 Ke8 Kd2 d5 Kd3 g5 Kd4 g4 Ke5 g3 h4 g2 a4 Kd7 f4 Ra6 a5 Rb6 h6 Rg6 f6 Qe8 h5 Rg3 f5 Rc3 c6+ Kd8 c7+ Kd7 b5 Bb7 c8R Rc4 f7 Rc3 f8R Rf3 h7 Qg6 h6 Qb6 f6 Qa6 f7 Rf6 b6 Qa7 Bd2 Rf4 Be1 Bc6 b7 Ba4 Na3 b1R Nf3 g1N Qd4 b2 Nc2 Na6 b8B Bc6 Be2 Qb6 Bc7 Rg4 Nb4 Qa7 Qb6 Bb7 Nc6 Rc1 Rb1 Rd1 Nd8 Bc6 Kf5 Rgd4 Kg6 Rc1 Kg7 Nf6 Re8 Rf8 h8B Nc5 h7 Rc2 Rh6 Rb4 Rb8 Rf4 Rb7 Qa6 Ne5+ Kc8 Rc1 b1N Bd1 Ra4 Bg4+ Ncd7 Qb5 Nh5+ Kg6 Ra3 Nf3 Rc4 Bb2 Ng7 h8R Ne2 Kh7 Raa4 Bf2 Rc2 Rch1 Na3 Ne5 Qa7 Be1 Qf2 Qb6 Nh5 Qb5 Rg8 f8Q Nc1 Qf7 Qf1 Qf2 Rf8 Qfb6 Rf7+ Kg8 Qf5 R8h7 Nc5 Ng6 Kd7 Ne6 Qf2 Rc8 Qf6 Nd8+ Ke8 Ne5 Qg7+
br1r4/1Pp3R1/Q1R1K2r/p3N1B1/1B1k4/1Bb4q/1Nn2bN1/Nr2Q1NB w - - 0 1 illegal: No possible last move
b2b1n2/1R2QN2/3R2nN/b2Qp2B/1Q2P1RK/qBp3rR/1b2Qqk1/R7 w - - 0 1 legal: proof: c4 a5 b4 g5 f4 b5 fxg5 d5 cxd5 Nh6 a4 Ng8 axb5 a4 g4 h6 g6 Bd7 g7 Rh7 g5 Bc6 g6 Bb7 Bb2 Bc8 Bf6 Ra5 bxa5 Rh8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 d4 e5 h4 f5 e4 c5 b6 g4 h5 c4 h6 a3 a6 c3 a7 a2 a8Q Qc7 b7 f4+ Kh4 f3 h7 f2 Nd2 g3 Rh3 g2 Nc4+ Kd7 d6 Kc6 d7 Qa5 d8Q Qb4 d5+ Kc5 d6 Qb3 d7 Qb5 Be2 f1Q Bh5 Ne7 g8R Qb3 g7 Qa3 Qe2 Kd4 Ne3 Qf5 Ng4 Qf2+ Kg5 Ng6 Nh6 Bd6 Qe7 Bc7 d8R+ Nd7 b8R Ba5 Qc6 Ba6 Rb7 Bb5 Qce6 Bc6 Qb3 Bd5 Qbb2 Ndf8 Rd6 Kc5 Nf3 g1B Kg4 Bd8 Ng5 Kd4 Ngf7 Ba5 Rf1 a1B Qbb5 Bb2 Ra1 Ne6 Rgb8 Re8 g8B Nef8 h8Q Bd8 Qg7 Ba5 Qed7 Re6 Kg5 Rf6 Re8 Rf3 Ree6 Bd8+ Rf6 Ba5 Rf4 Rg3+ Rg4 Bd8+ Qf6 Ba5 Qfe7 Bd8 Qf1 Ke3 Qb4 Kf3 Qe2+ Kg2 Qdb5 Nh8 Kh4 Bc6 Rb6 Ba8 Rb7 Ba5 Ng5 Bd8 Bb3 Ba5 Ngf7 Nhg6+ Kg5 Bd8 Qd5 Ba5 Qa6 Qa7 Qab5 Bgb6 Qbd3 Bd8 Qc2+ Qf2 Qe2 Nf4 Kh4 N4g6+
3R3R/1QQp2Q1/2b1Q3/2rbBN1N/kB1Q1P1b/3qn3/np3qB1/4b1KB w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 b5 dxc5 f5 e4 Ra7 exf5 Rb7 a4 axb4 Bc4 b3 Be2 b4 Bf1 Rb5 axb5 Qa5 Nd2 Qb6 Nb1 Qd8 c4 e5 f4 g5 Kf2 g4 h4 b2 b6 b3 b7 e4 c6 Ke7 h6 Qb6+ c5 Kd8 c7+ Ke8 f6 Qa7 f7+ Ke7 h7 Qa4 c6 Ke6 h5 Qa8 h6 Ke7 Qe1 Kd6 Nc3 Kc5 Bg2 Kb4 Bd2 b1B Nf3 g3+ Kg1 b2 Nd4 e3 Nce2+ Kc5 Nf5 Kb5 Bb4 Be7 f8Q Na6 b8Q+ Bb7 c8B Bh4 c7 Nf6 Qg7 Be4 Rh3 Rf8 h8Q Bd5 h7 Ng4 Qa7 Bbc6 Bb7 Re8 c8Q Re5 Qc7 Qb8 Bh1 g2 Neg3 e2 Nh5 Ne3 Qd4 Qa7 Qhc8 Qc5 h8B Qc4 Rc1 Qd3 Ba8 Ka4 Q8b7 Bf3 Rc5 Bfe4 Rb5 Rc5 Rb6 Bcd5 Rf6 Bf3 Rf8 Bc6 Rd8 Bfd5 Qeg3 e1B Q3g6 Ba2 Qe6 Bc4 Bd2 Nb4 Rh2 Na2 Bb4 Bf3 Qg3 Bb5 Be5 Bbc6 Qg7 Bfd5 Nhg3 Be7 Rhh8 Bh4 Nh5 Be4 Qbc8 Bb5 Kh2 Bf3 Bd5 Bc6 Q8b7 g1Q+ Kh3 Bd1 Bdg2 Qf2 Kh2 Bdf3 Qeh6 Qfc2 Kg1 Bfd5 Qe6 Qf2+
3b4/Qr1b1kBB/R1N1rbn1/1bRB2p1/2RBnpBr/KP2R1N1/2Q5/8 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Qd6 gxf5 exf4 h4 Kd8 h5 Qg6 hxg6 Ke8 e4 a5 d4 h5 Kd2 c5 Kc2 a4 f6 h4 d6 a3 Kb3 h3 f7+ Kd7 b6 Ke6 d7 a2 d8R h2 g7 Nh6 g8B Ng4 d5+ Kf6 b7 Ke7 e5 Bf5 d6+ Ke6 d7 Nf6 Nf3 Rh7 Bg2 Nc6 b8Q Rh3 Re8+ Be7 d8R Ne4 Qc2 Bg6 f8B+ Bf7 Nc3 Rh7 Bg7 Rh4 Bh7 Rh6 Rc8 Ra7 Be3 Rh5 Bd4 Rh4 Rhc1 h1B Ne2 Rb7+ Ka3 Bh5 b3 Bg4 Qc7 Kf7 Ng3 Bd7 Bh3 Bf6 Bg4 c4 Qa5 c3 Qa7 Ne7 Rc5 Ng6 Re6 Nf2 Ra6 Ne4 e6+ Ke7 Rab1 a1B Ne5 Ke8 Nc6 Bd8 e7 Kf7 Rb2 Bf3 Ra2 Be2 Re1 Bc4 Re3 Bb5 Ra4 Nf8 Rac4 Ng6 Qg2 c2 Qe2 c1R Qc2 Bc3 Ra1 Bf5 Ra2 Re1 e8B+ Ke6 Bd7+ Kf7 Bc8 Bd7 Bf3 Be8 Bcg4 Bd7 Rd3 Nf6 Bd5+ Re6 Re3 Ba1 Kb4 Ne4 Ra6 Bc3+ Ka3 Bca5 Bh6 Bf6 Bg7 Bad8
KRQ2R2/2N1RPbq/2R4R/1qB1Qq2/2p2Qnq/1br1p3/kN2Bb2/7Q w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 gxf5 d5 e4 dxe4 f4 g4 h4 Nd7 f6 Nb6 f5 Nd5 cxd5 Nh6 Na3 Rg8 Nb1 Rg5 hxg5 Ng8 Bd3 Rb8 Bf1 Ba6 Bc4 Qc8 Ra2 Bh6 Qc2 Kf7 Ke2 Bg7 Rh2 Nh6 Qb3 Qd7 Rh3 Rh8 Rh1 Qd8 Qd1 Ke8 Ra1 Bf8 Ke1 Ng8 Bf1 Bc8 Ke2 Kf7 Ke3 c5 d4 h5 b4 e5 g6+ Ke8 g7 Kf7 b6 c4 d6 h4 d5 h3 b5 h2 d7 a4 b7 g3 b8Q g2 b6 a3 b7 a2 d6 Rh7 Ne2 Rh6 Na3 Qa5 d8R Qe1 d7 Rg6 Re8 Qb4 d8R Bd7 Nf4 Qb5 Be2 Rg5 Nd3 Nh6 Nb2 Bc6 g8R Bg7 Qc8 Rg6 Rb1 a1Q b8Q Rg4 Qf1 Rg3+ Qf3 Qa2 Rd6 Bd7 Rc6 g1B+ Kd2 e3+ Kc3 e4 Kd4 Bf2 Qe5 Rh3 Bd2 Rg3 Bb4 Ng4 Bc5 Qab3 Kd5 Qc2 Ree6 Rh3 Rhe1 h1Q Qg2 Qh2 Qh1 Rf3 Kd6 Qh7 Kc7 Rg3 Rd8 Be8 Red6 Kf8 f7 Qd3 Qd4 Ke7 Qc3 Bd7 Rf8 Qd5 Qe5+ Qe6 Qf4 Kf6 Qg5+ Ke5 f6+ Qef5 Re6+ Kd5 Re7 Rf3 Rg1 Rh3 Rg2 Rf3 Rh2 Be8 Rh6 Rg3 Bb4 Kd4 Bc5+ Kc3 Qf4 Kb3 Qe5 Qa6 Kb8 Qb5+ Ka8 Ka2 Nc2 Rh3 Nd4 Rf3 Ne6 Rg3 Bd3 e2 Nc7 e1Q Be2 Rh3 Rg8 Bd7 f8Q Rc3 f7 e3 Qfd8 Qd2 Rf8 Qd4 Qf4 Be8 Qdd5 Qdf6 Qde5 Qh4 Rd1 Bd7 Rdd6 Be8 Rb6 Bc6+ Rb7 Be4 Rc6 Bc2 Rb8 Bb3
n1B1B2N/2pq1rR1/1qQ1R3/1QP2BN1/n3n2R/K3BR1b/1p2q3/3q2Bk w - - 0 1 legal: proof: e4 e5 g4 a5 d4 f5 exf5 Ra7 dxe5 Kf7 b4 axb4 f6 Ke8 f7+ Ke7 Bd2 Ra4 Bc1 Ra8 h4 b5 f4 Ra6 g5 Rf6 Bd3 Ke6 f5+ Kd5 Be2+ Kc6 gxf6 g5 Bf1 g4 Bb2 Bh6 Bc1 Bg5 hxg5 Kc5 Rh6 Kb6 Rh1 Kc6 Kd2 Kd5 f8B Ke4 a4 d5 c4 h5 Kc2 g3 Kb2 h4 a5 b3 g6 b4 a6 g2 a7 d4 a8Q+ Qd5 f7 h3 g7 h2 e6 d3 e7 d2 e8B Rh5 f6 Ke3 Qe2+ Kf4 Qc6 Kg3 Nc3 d1Q Ne4+ Kh4 Nf3+ Kh3 Nh4 Ba6 Bc5 Nd7 f8R Rf5 f7 Nb6 Ng6 Na8 Bg1 Bc8 Ra6 Nf6 g8B Qd7 Ng5+ Kg3 Nh8 Ne4 Qh5 Qe2+ Bd2 Rf6 Bh7 Rf4 Bf5 Rf3 Ba7 g1Q Rg8 Qb6 B1h3 Kf2 Bhg4 Kg2 f8R Rf4 Rg7 Rf2 Re1 h1Q Ra4 Qg1 Bh3+ Kh1 Rf6 Rf4 Rf1 Rf2 Re6 Rf4 Rf3 Qgd1 Bfg6 Rf7 Bgf5 Qed3 Be3 Q1e2+ Ka1 b2+ Ka2 b3+ Ka3 Qdd1 Bg1 Qb7 Bae3 Qb6 Rb4 b1N+ Ka4 Nbd2 Ka3 b2 c5 Nc3 Rh4 Nde4 Qg4 Ng3 Qga4 Nge4 Qab5 Na4 Re7 Rf8 Bfg4 Q7d2 Be6 Rf7 Beg4 Bf5 Re5 Bh7 Bc8 Qd7 Re6 Bg6 Bh2 Bh5 Bf5 Bg4 Bhg1+ Bh3
5r2/2N3Kp/3R4/2bR1R1R/r1RNNpbq/1Q2rB2/B2Qr2P/rb1N2k1 w - - 0 1 legal: proof: d4 b5 a4 d5 axb5 Kd7 c4 Nc6 cxd5 Nh6 e4 Nb4 d6 Ke6 d7 Na6 d5+ Ke5 d6 Ng8 Bc4 Kf6 Bf1 Ke6 f3 Kf6 Ra5 e5 Bh6 Kg6 Ra1 Nf6 Bd2 Nb4 Bf4 Nbd5 exd5 e4 Bd2 Ng4 f4 Ne5 fxe5 Bb7 Bg5 Bc8 Bf6 gxf6 Qd4 f5 Qd1 f4 Kd2 Kg5 Kc3 Kh4 Kd4 a5 g4 f5 b4 f3 g5 c6 g6 a4 e6 f2 Ke5 c5 e7 c4 Kf6 e3 g7 f4 g8B a3 b6 e2 b5 e1R b7 a2 b8Q c3 b6 c2 b7 c1R Be2 f1B Qd2 Ra3 Nf3+ Kh3 Nd4 Kg2 Bf3+ Kh3 Nc3 Rb3 Nd1 Qa5 d8R Rc5 e8N Qa6 Nc7 Qa8 d7 Rb6+ d6 Be7+ Kg7 Rh5 Rf8 Rb4 d8R Rb6 d7 Rhe5 Rf5 Rb4 Rc1 a1R Rc5 R5e2 Ba2 Rf8 Rc4 Rf2 Rg1 Ra4 Rgg5 Re3 Rh5+ Bh4 Nce6 Bd3 Nc5 Bb1 Ne4 Qa5 Re8 Qa8 d8R Rfe2 Rd6 Be6 Rfd5 Bg4 Ree5 Qa5 Ref5 Qd8 Rhg5 Be1 Rh5+ Qh4 Qd8 Bc2 b8N Bf2 Na6 Bb1 Qd7 Be1 Qc2 Bb4 Qb3 Bc5 Nc7 Rc2 Be2 Kg2 Bf3+ Kg1 Qc6 Rf2 Rc1 Bb6 Qcc2 Ba7 Qd2 Rfe2 Rc4 Bc5
2k5/1r1n1pBB/1pn3B1/1bQ5/1N3RRN/1nr1B2P/R1R1n1rK/4RQ1n w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 b4 axb4 fxe5 Qd7 Qc2 Qe7 Qd1 Qd8 Nf3 h5 Qc2 g4 Qc4 Bh6 Qc5 Bg5 hxg5 h4 Ng1 h3 Qc2 h2 Qd1 Qf6 Nf3 Qh6 Ng1 Qh3 gxh3 Kf8 Bg2 Ke7 Bf1 Ke8 Kf2 Kd7 Kg2 c5 a4 b6 e4 g3 d4 b3 d6 c4 e6+ Kd8 d5 c3 e5 b2 e7+ Kd7 e8R c2 g6 Rh5 g7 Rh7 a5 Nh6 g8R Ng4 a6 Nf2 a7 Ne4 Nc3 b1R Na2 Rh8 Nf3 Ba6 Nb4 Nc6 Ra2 Bc4 Nh4 Nc5 Bd3 Nd8 e6+ Kc8 d7+ Kb7 e7 Bb5 d6 Na6 Bh7 Rc8 a8B+ Kb8 Rf1 h1N Bae4 Rb3 Rg4 Rcc3 Beg6 Rf8 Rff4 Rd3 Qf1 Rb2 Bd2 Rdb3 Bc3 Ra3 Bg7 c1N+ Kg1 Rh8 Rf8 Rf2 e8R Nc5 Re1 Ra7 Rfe8 Rb7 R8e2 N1b3 Red2 Re8 Rdc2 Rf3 Kg2 Nc6 Kg1 Rc3 Kg2 Rc7 d8Q+ Kb7 d7 Re2+ Kg1 Rf2 Qe7 g2 Rd4 Rd2 d8B Kc8 Kh2 Nd7 Qc5 Rb7 Bg5 Re2 Be3 g1N+ Rg2 Rf2 Rc4 Ne2 Rf4 Rf3 Rg5 Rg3 Rgg4 Rg2+
7b/1qRQBb2/QBN5/2Q1R3/QB2bnpp/6Bk/B1PK1b1q/2n2Nn1 w - - 0 1 legal: proof: g4 h5 a4 c5 e4 a5 h4 f5 gxf5 b5 axb5 g5 f4 g4 d4 cxd4 f6 Rh7 e5 Rg7 f5 Rg5 hxg5 Qc7 Ke2 Kd8 Kf2 Ra6 f7 Rf6 exf6 Qb6 Bd3 Kc7 Ke1 Kd6 Bf1 Qd8 b4 Ke5 g6 d5 b6 d3 b7 d2+ Ke2 Kf4 b5 Kg3 g7 e5 b6 a4 Ra2 h4 Nf3 a3 Nd4 e4 Nc6 Nd7 b8B+ Qc7 b7 Bc5 f8Q e3 f7 d4 f6 Ne7 g8Q Nd5 Qg6 Ne5 Rb2 Bb6 Qc5 a2 f8B a1B f7 Be6 Be7 Nd3 f8B Bf7 Rb4 Ba7 Rc4 Qd6 Bg2 Qe5 Re1 N5f4+ Kf1 Qd6 Bd5 Kh3 Rc3 Qd7 Ba2 Qd6 Ba3 Nc1 Bb4 d3 Bd8 Qd7 Bfe7 e2+ Kf2 Qd5 Ke3 Qb3 Rc4 Bh8 Bb6 Qb2 B8c7 Qg7 b8Q Qh7 Rg1 e1N Qa8 Nf3 Re1 Ng1 Qe4 Qg7 Qc8 Qe5 Qa6 Qd5 Qed4 Qg2 Qd7 Qh2 Qe2 d1Q Qa4 d2 Qed3 Nh5 Bg3 Nf4 Re2 Qe1 Rc3 d1B Nd2 Qf1 Qda6 Qfg2 Nf1 Qgh1 Re1 Bf3 Re2 Be4 Kd2 Bb8 Rc4 Bbe5 Rc3 Bd4 Rc4 Bf2 Rc3 Bh7 Re5 Be4 Nd8 Bf3 Qcb5 Ba8 Rc7 Qe4 Qc5 Qc6 Rb7 Qc8 Rc7 Be4 Nc6 Qb7
Q4RBb/R3R2q/RN1p1B2/4bk2/rB4q1/Q1qPB1K1/b6p/r1q2NB1 w - - 0 1 illegal: No possible last move
nQ1N1n2/p1R1NBkn/NnQ4r/B5q1/Pp1N1Q1N/2R1rn1n/5Q1K/8 w - - 0 1 legal: proof: b4 d5 c4 e5 cxd5 c5 bxc5 e4 g3 e3 Qc2 exf2+ Kd1 Ke7 Qb3 Qa5 Kc2 Kd8 Kd3 Ke7 Qd1 Qd8 Kc2 Ke8 Nc3 f5 Qe1 g5 Nb1 f4 Qd1 f3 h3 g4 Kb2 Bh6 Kc2 Bf4 gxf4 g3 Na3 Qe7 Nb1 Bg4 hxg4 Qd8 Kd3 Kf8 Ke3 h5 d4 b5 a4 g2 g5 h4 f5 h3 Kf4 h2 Kg3 Rh7 e4 Rc7 e5 Qf6 d6 Ne7 g6 Rb7 d5 Rb6 e6 Nc8 g7+ Kg8 e7 Qe6 e8N Qd7 f6 Ne7 c6 Kf7 g8N Kg6 f7 Qd8 f8Q Nd7 c7 Nb8 c8Q Nec6 d7 Nb4 d6 Nd5 Qf4 Nc7 Ne2 g1N Qdd2 Nh3 Ra3 Ng5 Rc3 Nh7 Nd4 Qg5+ Kh3 Ra6 d8Q Nd7 Bc4 f1N Qf2 Ndf8 d7 Ne3 Bd2 Ned5 Rhc1 h1N Kh2 Nb6 Ne7+ Kh6 Bf7 b4 Be3 Rb8 Nd2 Nca8 Nc7 Kg7 Qe8 Rb7 d8N Rb8 Qc6 Rb7 Q2h4 Nf2 Qb8 Nh3 Qhg3 f2 N2f3 Kh8 Nh4 f1N+ Kg2 Nd2 Kh2 Kg7 Qgf2 Ra5 Na6 Re5 Qcg2 Rd7 Rc7 Rd6 Qc6 Rg6 Rc3 Rh6 Nc2 Nbd7 Bb6 Re3 Ba5 Ndb6 Nd4 Nf3+
3N1r2/2r1b3/2B2Bnk/BKPR4/2p1r1Q1/1Q1bN1Rp/1BqBR1Rp/3n4 w - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 a4 f5 exf5 g5 axb5 gxh4 c4 Qb6 cxd5 c4 Ra2 Kf7 Ra1 Qc5 bxc5 Ke8 d4 Kf7 Kd2 Kg7 Kc3 a5 f4 h5 g4 e5 f6+ Kh7 f5 h3 d6 e4 d7 h2 d8R a4 Kb4 a3 d5 e3 g5 a2 g6+ Kh6 b6 h4 g7 h3 d6 Ra5 b7 Ra4+ Kb5 Be7 f7 Ra7 f8B Bh4 f6 Ra6 d7 Re6 f7 Bf2 Bd2 Na6 b8Q Re8 Ne2 Re6 Bg2 Bg1 Be7 Rf6 f8B Rf4 Nd4 e2 Nc3 e1R Nc6 Re3 Nd5 Rh7 Bf6 Nb4 Qg4 Ree4 Re1 a1Q Ne3 Qa2 Re2 Bf2 Rg1 Ne7 g8R+ Rg7 Bf3 Qc2 Rg2 Ng6 Bd6 Rh7 Bde5 Nd3 Bb2 Bh4 Rg3 Nf2 Bh1 Ne5 Rg5 Re7 Rdg8 Rh7 d8B Bf5 B8a5 Ng6 Nd8 Rc7 Rg7 Nd1 Bf3 Rd4 Bc6 Bd3 Rd5 Rde4 Bfe5 Nf8 Rf7 Qc3 Ka6 Rc8 Qb3 Ng6 Kb5 Qc2 Reg2 Rf1 Rff2 Be7 Re2 Rf8 Bf6 Rc7
2Kr1QR1/N2n1BQn/QR2Qp1p/4b1Q1/q1P1b1Rr/1N1k4/4pb2/2B1R3 w - - 0 1 illegal: No possible last move, all moves rejected
1k1NN3/4Pp1q/3R4/1rNb1r2/1BnRQQ2/3Br1K1/3Npp2/1n1BBNb1 w - - 0 1 illegal: No possible last move, all moves rejected
BQr1n1rk/N1nR2bP/4KR2/3pb1N1/Qp1p2N1/Nr6/2R3bR/4N1B1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 e4 b4 exf5 Qb6 d4 Qb5 axb5 cxd4 Ke2 Kf7 Kd3 e5 Ke4 g5 Kd5 Kg7 c4 d6 h4 e4 f4 e3 h6+ Kh7 h5 g4 b6 g3 a6 g2 b7 e2 f6 e1R c5 Be7 a7 Re3 f5 Re6 c6 Bd7 c7 Re1 c8N Re6 f7 Bg5 f8R Re2 f6 Bb5 f7 Bd7 Na3 Re7 Ra2 Be3 Qa4 Re8 Rc2 Nc6 b8Q Bg5 Nf3 g1B Bg2 Bf6 Be3 Re6 Ne1 Be5 Rh2 Na5 Rd8 Bb5 f8R Bf6 Rd7+ Bg7 Rf6 Nb7 Bh1 Re7 Bf2 Rf7 Ke6 Ne7 Be3 Bc6 Bd5 Kg8 h7+ Kf8 h6 Rg8 Be4 Nd5 h8N Bf2 h7 Bg3 Bg1 Be5 Rf1 Rf2 Nf7 Rf3 Rff2 Rb3 Rf6 Bb5 Bf3 Bf1 Be4 Bg2 Nh6+ Ke8 Ng4 Nc7+ Kf5 Na6 Bc6 d5 Ke6 Nd6 Qc7 Rb8 a8N Bh3 Bb7 Bg2 Na7 Rd8 Qb8 Rc8 Rg6 Kf8 Nc7 Ne8 Ba8 Rc3 Ncb5 Rf3 Nd6 Rb3 Nf7 Nac7+ Kf5 Bh6 Rf6 Kg7 Ng5+ Kh8 Nef3 Nb5 Ke6 Bg7 Ne1 Nbc7+
2N3B1/nb1QBpnB/3Pp1bN/1p4r1/1b1K4/1R1B2N1/k4rNB/3Q2Rb w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 g5 d4 g4 d6 g3 b4 axb4 hxg3 c6 g4 b6 g5 Bg7 Bf4 Bh6 Bc1 Bf8 f4 b5 f5 e6 f6 Ra4 d5 Qe7 d7+ Kd8 fxe7+ Kc7 Qd3 Kd6 Qd1 Ke5 Qb3 Ra3 Qd1 Rd3 d6 Rd5 exd5 Kf5 Qa4 Kg6 Qb3 Nf6 Qd1 Ng8 Qh5+ Kf5 Kd2 Bh6 Ke3 Ke5 d8B c5 d7 c4 e8N c3 a4 b3 g4 c2 a5 b2 a6 Nf6 a7 Rg8 a8B Ba6 Bd3 Rh8 Nd2 Rf8 Ne4 Rg8 Be7 Rg7 d8Q Ng8 N8d6 Bc8 Qd7 Ba6 Rb1 Nf6 Nc8 Nc6 d6 Kd5 Nf3 Ne8 Rg1 Rg8 Bd2 c1R Nh4 Rc2 Be1 Rg2 Bg3 Rf2 Bb7 Bg7 g6+ Be5 g5 Bc3 g7 Bb4 Qd1 h5 Nf3 h4 g6 h3 Ne1 h2 Ng2 h1B Bh2 Rf6 Ng3 Rf2 Ba8 Kc5 Bb7 Na7 Bbe4 Bb7 Bf5 Rh8 g8N Rh5 g7 Rg5 Nh6 Kd5 g8B Ng7 Bde4+ Kc4 Bfh7 Kc3 Bef5 Kc4 Bd3+ Kc3 Qf1 Kb3 Kd4 Ka3 Qd1 Ka2 Rc1 Bf3 Rc3 Bb7 Rb3 b1B Bf1 Bf5 Bd3 Bg6
3R4/1Q2Br1k/2r1bP1r/1B2Q2Q/1N1K1Rq1/bp1N3p/1qpQ1Qq1/1RR5 w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 g3 h4 Bh6 e5 Kd7 f6 Bf8 f5 Nc6 f7 Nf6 exf6 Nd4 Na3 Ne6 Nb1 Ng5 hxg5 Ra5 Be2 Ra3 Bf1 Ra8 Ke2 c5 Ke3 h5 d4 b5 a4 e5 d6 c4 g6 b3 d5 h4 g7 b4 g8Q h3 a5 b2 a6 e4 a7 b3 Ne2 g2 Nbc3 b1Q Kd4 g1R Na2 c3 Bg5 c2 Nb4 e3 Nf4 e2 Nfd3 e1Q Qh5 Rg2 Qg7 Be7 f8R Rh2 f7 Rd2 Qe5 Qa2 Rc1 Qg3 Rg1 Rb8 a8Q Qg2 Qb7+ Qc7 Be2 Rh6 Rb1 Ra8 Rgc1 Ra6 Bf1 Rf2 Be2 Bd8 Be7 Qa4 Nf4 Rf3 Bb5+ Rc6 Nd3 Qa3 Rg8 Qa4 Rg4 Qa2 Rf4 Qb2+ Ke4 Qg4 f8Q Rf1 Qff6 Rf2 Qfh4 Rf1 Qf2 Qg2+ Qhf3 Ke8 d7+ Kf7 d6 Kg8 Ke3 Kh7 Qh5 Qg4 Ke4 Qa5 Kd5 Bc7 d8Q Qa8 d7 Bd6 Qa5 Bc5 d8R Be6+ Ke4 Rd1 f6 Rg1 Na2 Ba3 Qad2 Rg2 Nab4 Rg3 Ne1 Rgc3 Ned3 Rc7 Bc5 Rf7 Be7 Rc5 Qc6 Rc3 Kd4 Qb7 Qb6 Qbg2 Qb7 Rc6+
6Nq/1bRNp1kn/Qb4N1/4p1P1/1nNp1q1B/N3B1Qb/B7/n1B2KR1 w - - 0 1 illegal: No possible last move
r1QQr1B1/6qp/NnN2R1N/P1b1p1KQ/N5Q1/4nbp1/2R1p3/3Nk1B1 w - - 0 1 legal: proof: g4 a5 b4 b5 bxa5 f5 gxf5 d5 c4 g5 f4 g4 e4 dxe4 h4 Qd3 f6 Qd7 f5 Qd5 cxd5 Kd7 f7 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bg7 Nc3 Bh6 Nb1 Bf8 Kf2 Kd6 Ke3 Kc5 Kf4 Kb4 a4 c5 d4 c4 d6 g3 f6 e3 a6 e2 g6 e6 d5 c3 g7 c2 a5 Kc4 a7 Be7 f8Q Ba6 a8N Nc6 d7 Bb4 d8N Nce7 f7 Ba3 d6 Nf5 d7 Kb3 Rh2 Ngh6 g8N Bc8 Kg5 Ba6 Nc6 Ne7 d8Q Ng4 Nc3 Bc5 Qg7 Nd5 f8Q Nb6 Be3 Bb7 Nh6 Kb2 Bh3 c1R Nc7 Rb1 Bf2 Ne3 Na6 Ba8 Q1d5 Kc2 Na4 Re1 Bg4 Rg8 Nh3 Rh8 Qde5 Bb7 Qc8 Kd2 Bg1 Rg8 Nf2 Ba8 Nd4 Bf3 Qfd8 Re8 Rc1 b4 Rh5 b3 Nd1 Rf1 Nc6+ Ke1 Rc2 b2 Rh2 b1Q Rf2 Qb2 Qg8 Bh1 Rf6 Bf3 Bh5 Qd4 Bf7 Qd7 Qf5 e5 Qgg6 Qb7 Bg8 Qg7 Qg4 Be4 Rd6 Rff8 Rf6 Bf3 Qh5 Rf7 Qhg4 Ra7 Qh5 Ra8 Qhg4 Qb7 Q6h5 Qg7+
Rn4BQ/1qN2B1r/3R2q1/KQr2kr1/p1b1p3/N3p1B1/2BpP2Q/1BQ5 w - - 0 1 legal: proof: d4 c5 dxc5 b5 g4 f5 a4 g5 axb5 Kf7 f4 Bh6 Qd4 Nc6 Qe4 fxe4 h3 Nd4 h4 Nf5 gxf5 g4 Ra5 Ke8 Ra1 Bg5 hxg5 Ba6 Kf2 Bb7 Ke1 Bc8 Kd2 Kf7 Kc3 e5 Kb4 h5 c4 d5 g6+ Kf6 g7 a6 c6 g3 c5 d4 c7 h4 b6 g2 c6 d3 b7 h3 b8Q h2 Nf3 g1R Ng5 Bd7 c8B Rh6 c7 Rh8 Ka5 Ne7 g8B Be6 b4 Bb3 b5 Qd5 Bh3 Qd7 b6 Rh5 b7 Be6 Na3 Bc4 Ne6 Rg6 Rd1 h1Q Bg4 Rh2 Bh5 Rg4 Bhf7 Qg2 Be3 Qf3 Bf2 e3 Bg3 Qe8 Bd7 Bb5 c8B Qf2 Nc7 Bc4 Ba4 Rh7 Bc2 Kg7 f6+ Kh6 f5 Kg5 Bce6 Bb5 Ba2 e4 Bab1 Qh2 Qc8 Qh3 b8Q Bc4 Qb5 Nc6+ Ka4 Qh6 Be6 a5 Qd7 Rd8 f7 Na7 f8Q Rf7 f6+ Bd5 Nc4 Nc6 Qa3 Nb8 Qc1 Rh7 Qf7 Qg6 Qe7 Rh6 Qh7 Qc6 Ra3 Qb7 f7 Qf5 Ra1 Rh2 Qh8 Rh7 f8Q Qg6 Qf2 Rf8 Qg2 Rf5 Bef7 Re5 Qh3 Kf5 Qh2 Rg5 Rf1+ Kg4 Rf6 d2 Ra6 Be6 Ra8 Rd5 Ra3 Rde5 Rd3 Kf5 Na3 Rc5 Rd7 Bc4 Rd6 Bd3 Kb3 a4+ Kb4 Bc4 Ka5 Qg7 Ne8 Qf6 Nc7 Qg6
k2rn3/N2p1Q2/5pp1/nRB1B1n1/b1N1N1rK/1B2QB2/np1NP3/1R3B2 w - - 0 1 legal: proof: d4 a5 b4 axb4 f4 c5 dxc5 e5 fxe5 f6 h4 Qc7 g4 Kf7 h5 Ke8 g5 Qc6 g6 Qe6 h6 Qf7 gxf7+ Ke7 Bf4 g6 Bc1 Bg7 hxg7 Ra3 Qd2 Ra4 Qd1 Ra8 Kf2 Kd8 Kg3 Kc7 f8B h5 c4 b5 a4 Kb7 a5 b3 a6+ Ka7 c6 b4 c5 b2 e6 b3 e7 Nh6 g8B Bb7 e8Q Bc8 c7 Rh7 c6 Re7 Na3 b1N Nc4 b2 Nf3 Rh7 Kh4 Nc3 Qd2 Nf7 Rb1 Ng5 Qf7 Na2 Qf4 Bb7 Nfd2 Rh8 Rh3 Rh7 Rb3 Rh6 Rb5 Rh8 Kg3 h4+ Kg4 h3 Qe4 Nh7 Kh4 h2 Bd6 h1N Be5 Ng3 Qd3 Ne4 Qe3+ Nc5 Nd6 Nb4 N6e4 Na2 c8B Nb4 c7 Bc6 Bb7 Na2 Rb3 Ba4 Rb5 Bb3 Bd5 Ba4 Bb3 Nc6 Bd5 Rf8 c8N+ Ka8 a7 Bd1 Bb3 Rd8 Bd5 Na4 Bb3 Nb6 Bd5 Ba4 Bb3 Kb7 a8N Na5 Na7 Ng5+ Bh7 Rhe8 Bg8 Ka6 Bd5 Nc8 Nb6 Nd6 Nbc4 Re6 Ng3 Ne8 Bf3 Rb6 Nge4 Kb7 Nb3 Nc6 Bd2 Na5 Bb4 Ka8 Nbd2 Rd6 Bc5 Rd3 Qh7 Ra3 Be6 Rd3 Qf7 Rd5 Ncd6 Rd3 Bb3 Rc3 N6c4 Rc1 B1g2 Rg1 Bf1 Rg4+
2RRBR1q/3Q4/1kp5/6nR/3pQpB1/Nbp1pP1K/BB2N2n/3q1rR1 w - - 0 1 legal: proof: d4 b5 c4 bxc4 b4 h5 g4 a5 gxh5 Ra7 bxa5 Ra6 d5 Ra8 e4 e6 e5 c6 d6 Ra6 Qf3 Ra7 Qd1 Rc7 dxc7 d5 Ba3 Kd7 Bc1 Bd6 exd6 Ke8 a4 Kd7 h4 f5 h6 g5 h7 g4 h5 e5 a6 e4 a7 f4 a8B c3 h6 e3 a5 g3 f3 g2 a6 Qg5 a7 Qg4 Ne2 g1Q Na3 Na6 Bb7 Ne7 a8Q Qg8 Rh5 Q8g2 Bb2 Rd8 h8R Q1h1 h7 Qgh2 Rf8 Q2g2 h8R Nc5 Qaa4 Ng8 Qe4 Qg7 Ba6 Qe7 Bc4 Qh7 Ba2 Nf6 Rc1 Ba6 Rb1 Kc8 d7+ Kb7 c8B+ Kb6 Qdd4 Ng4 Qdd3 Qh2 Bh3 Ne6 Kf1 Bc4 Qd1 Qg3 Ra1 Qe1+ Kg2 Nh2 Bg4 Qh6 Kh3 Bb3 Qdd3 Qd2 Rg1 Qd1 Rhg8 Qh8 Qd2 Re8 d8R Re7 Qdd3 Rg7 Bd7 d4 Be8 Rb7 Qc4 Ra7 Qcd5 Rg7 Qd7 Rg5 Bf5 Rg2 Bg4 Rf2 Rg5 Rf1 Ra5 Bc4 Raa8 Bb3 Rac8 Ng5+
1r2R1R1/4Q1b1/1N1P4/BRRBnb1k/b3B2b/2n3K1/N1nR2B1/1rrb2qQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 g4 Kf7 d4 Kg6 b4 h5 e4 a5 e5 c5 b6 h4 d6 h3 d7 c4 b7 h2 b5 a4 d5 f3 d6 a3 b6 a2 e6 c3 e7 f4 e8B+ Kh7 g6+ Kh6 g5+ Kh5 Bd2 c2 Nc3 c1R Bg2 Qc7 d8Q Ne7 Bc6 Nd5 g7 Nd7 b8R Qa7 g8B Be7 g6 Ne5 g7 Bf5 Na4 Nc3 Ne2 Rh6 Rg1 h1B Be4 Rh8 Rc8 Rb8 Rb1 a1B Bgd5 Bb2 g8R Bh4+ Rg3 Rh7 Rc5 Rhb7 Qe7 Ba1 Rbb5 Bb2 Kf1 f2 Rd3 Ba1 Be1 Bb2 Rd2 Ba1 Bh3 Bf3 Rg8 B3g4 Kg2 f1N Re8 Ne3+ Kh2 f3 Bg2 f2 Rg8 Na2 Nec3 f1B Qf3 Bc4 Qf1 Bce2 Qh1 Nc2 Re8 Bd1 Rg8 Rc7 b7 Rb1 Nb6 Bge2 Re8 Bc4 Rg8 Bb3 Re8 Ba4 Rg8 Nc1 Na2 Ne2 Re8 Nc3 Rg8 Ra8 b8R Bb2 Rbf8 Rb8 Re8 Bc1 Rd3 Bh6 Bd2 Bg7 Rd4 Ne2 Ba5 Nc3 Rd2 Rb4 Rc6 Nd4 Re2 Rb1 Rd2 Nce2 Rcc2 Rc3 Na8 Qc5 Nb6 Rc4 Rcb2 Rcc1 R2b4 Nc2 Rc4 Qe3 Rcc5 Nc3 Rc7 Bg5 Rcc5 Qg1+ Kg3+ Bh4+
k7/1n3rB1/N2b1n1R/Q3B1Bn/1RRRq1q1/r1KbR3/1PQ4n/n1N2B1q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 d4 h5 Kd2 a5 g4 c5 b6 e5 d6 Kc6 d7 Kb7 g5 h3 f6 h2 f5 a4 g6 e4 g7 a3 d5 a2 f7 e3+ Kc3 e2 d6 e1N f6 c4 Na3 h4 Ne2 h3 Nb5 Qe7 d8R Nf3 d7 Rh7 Qc2 Qe4 Bg5 Nc6 Nc7 Bd6 f8B Na5 f7 Nf6 Rc1 a1N g8R Ra7 Na6 Ka8 Rg6 Nb7 Bg7 Qg4 Rg1 h1N f8B h2 Rh6 Ng3 Re8 h1Q d8Q Nh2 Re3 Qhe4 Qc7 Bf4 Bd6 Ngh5 Be5 Bf5 Rd1 Bg6 Nc1 Bf5 Rd4 Bg6 Bh8 Rf7 Bg7 Bh7 Qc5 Bf5 Qa5 Bg3 Kb4 c3 Rg2 Bh7 Rc4 Bf4 Rd2 Bf5 Rdd4 Bg6 Qd3 c2 Kc3 Bh7 Ne2 c1Q+ Qc2 Qb1 Nc1 Bf5 Rd1 Qh1 Rdd4 Bd3 Qg2 Qg1 Qa3 Qe6 Bc7 Qg4 Nb8 Be2 Qf2 Ra5 Na6 Qh1 Qc5 Ra2 Qa5 Nc5 Bd6 Qbe4 b7+ Ka7 b8R Bd3 Rb6 Nb7 Qc2 Ka8 Rbb4 Bg3 Bc5 Bc7 Bd6 Bb8 Bg3 Bd6 Be5 Ra3+
4K3/n1qN1qbk/1N4RN/3RB1RN/Brb1q2r/3P4/1n2QQ2/1nR1n1Nn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 Ke5 a5 f4 c5 g4 h3 b4 c4 f6+ Kh6 g5+ Kg6 b6 c3 b5 h2 b7 h4 b6 h3 d6 e6 f5+ Kh7 d7 a4 g6+ Kh6 g7 a3 f7 c2 f6 a2 Bb5 Qe8 d8R Na6 b8N Rh7 b7 Nb4 Qe2 Ne7 Kd6 e5 Ba4 e4 Na3 e3 Bb2 c1Q Nd7 Nd3 b8N Ba6 Be5 Nb2 d3 Bc4 g8N+ Kg6 Kc7 Bg7 f8Q Nc6 f7 Na7 Ndf6 Rh4 Nh5 Kh7 Nd7 Rb8 Nh6 Rb4 Rb1 Qc3 Rc1 a1N Qc5 Qe6 f8R Qf7 Rg8 Nb3 Qb6 Qc2 Qf6 Nd2 Qff2 Nb1 Kd6 Bb3 Nc4 Ba2 Ncb6 Bc4 Nf3 Qc3 Rhg1 h1Q Rg5 h2 Ng1 Qe4 Kc7 h1N Kd6 Qff5 Ke7 Qc2 Ke8 Qff4 Qef3 e2 Qg4 e1N Qge2 Bf8 R8g6 Bg7 Rc8 Qc3 Rc5 Qb3 Rd5 Qa2 Bd1 Qa5 Bb3 Qc5 Bc2 Qc7 Ba4 Qf7+
kNn3NK/3NqrNQ/2n1nRN1/n4B1r/R7/1qP1bn2/2q1Q3/1Q1bQ1B1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 e5 Kf3 g5 Kg4 d5 h4 Kd7 b4 Kc7 f4 Kb7 h6 a5 Kh5 e4 Kg6 d3 b6 e3 h7 a4 f6 d4 b5 a3 f5 e2 f7 e1Q h5 d2 c3 d3 h6 a2 f6 g4 Ne2 g3 Nd4 g2 Nf5 g1N Ng7 Qe3 Bh3 Qf3 Qe1 d1Q Be3 Be6 Nd2 Qd7 Ne4 Bb4 f8Q d2 f7 Qf2 Qe8 Nc6 f8N Qd8 Nf6 Bb3 Be6 Bc5 Rh3 Na7 Rf3 Nc8 Rf4 Ra6 N8d7 Ka8 Rf3 Nge7+ Kf7 Bd4 b7+ Ka7 Rf4 Nf3 Rf5 Qfe2 Bg1 Qb1 Rf4 d1N Rf5 Rd6 Rf4 Ne3 b6+ Ka6 Rf5 Qh2 Rf4 Ng2 Rf5 Rd5 Rf4 Rg8 h8N Bd1 h7 Rh5 Rf5 Qe5 Rf4 Qef5 Ng6 Qfc2 h8Q Bf2 Rf5 Nf4 Qh7 Rh8 b8Q Rg8 Ndf8 Nc6 Bd7 Qb5 Q8e2 Be3 Be6 Nd5 Rf4 Nc7 Bh3 Ne6 b7 Ncd4 N8d7 Re8 Ndf8 Re7+ Kg8 Rf7 Kh8 Qe7 Ng8 Kb6 Nd7+ Kc6 Rb1 a1N Rb4 Nab3 Ra4 Na5 Rf6 Qc4 Bf5 Qb5 Nc5 Kb6 Nd7+ Ka6 Qc7 Ka7 Qc5+ Qb6 b8N Ka8 Qcb5 Nc6 Qb1 Qbb3
3B1nB1/Bb4K1/nR2rPN1/1q1BR1RN/k2b2Qb/5BQ1/1r6/qqq2Rq1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 e5 b4 a5 f4 c5 d4 h5 g4 c4 g6 h4 b6 a4 g5 a3 d6 Kc6 b7 Kb5 f5 h3 d7 a2 g7 h2 d5 Qc7 d8B Rh6 f6 Bd7 g6 Qd6 Na3+ Ka6 b5+ Ka7 b6+ Ka6 Be2 Ka5 Nh3 c3 Nf4 c2 Rg1 h1Q Nc4+ Kb5 Nh5 Bc6 Rg5 Na6 b8Q Ka4 b7 Qd7 d6 Ne7 g8B Rh8 g7 Ng6 Rb1 a1Q Bd5 Qe8 d7 Bc5+ Qd4 Nf8 g8B Bb6 Qd6 Rb8 Bf3 Qg2 Bd2 c1Q Rb5 Qcb1 Ba5 Bc5 Bab6 Qgb2 Ba7 Q2c1+ Ke2 e3 Qg4 e4 Qdg3 Bb6 Ne5 Bd4 Ng6 Rh7 Re5 Re7 Rc5 Qg1 Rc1 Re6 Rf1 Ra8 b8R Bb7 Bdb6 Qc1 d8R Qec6 Rd6 Qd7 Rc8 Rb8 Bd8 Qe8 Rb6 Qcb1 Rcc1 Qeb5+ Ke1 e2 Kd2 Rd6 Rc5 Re6 Bc4 e1B+ Ke2 Qd7 Bd5 e3 Rg5 Qc1 Kd3 e2 Re5 Qc6 Ke4 Qb5 Kf5 Qcb1+ Kg5 Bf2 Kh6 e1Q Kg7 Qec1 Rg5 Be1 Bc4 Bef2 Rce5 Be1 Bcd5 Bf2 Q3h3 Bh4 Qhg2 Rc8 Q2h3 Rc2 Qhg3 Rb2
2b1BB1b/1bNN2N1/P2Nr1n1/Kr1q1R2/1n5k/R3QQn1/Rb1b4/RR5q w - - 0 1 illegal: No possible last move, all moves rejected
1Rn1Kq2/2q2n2/r1B1N3/n2bB1N1/3Q1bqk/2nb1Q1B/2P2NBB/2N2rR1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Kc4 d5+ Kc5 h5 g4 a4 b4 d3 f4 h4 b6 d2 b5 h3 b7 a3 f6 Kg6 b6 a2 f5+ Kh7 f7 h2 f6 Kg6 Nh3 d4 Qf3 d1N Bf4 d3 Nf2 d2 Rg1 h1Q Bg2 Na6+ Kc6 e5 b8B e4 b7 e3 Bfe5 e2 Nc3 e1Q Ne2 Qf1 Rb1 a1N Nc1 Bf5 Rb4 Bd6 f8N+ Kf7 Rb2 Bd3 Ne6 Kg6 f7 Qh4 Bc7 Qh3 b8Q Nb3 Qb6 Nh6 Qd4 Nac5 Bh2 Bf4 Be5 Ne4 f8N+ Kf7 Rb1 Ndc3 Nh7 d1B g6+ Ke7 g5 Nd6 g7 Qg4 g8B Nc8 g6 Nf7 g7 Ra6+ Qb6 Qf8 Nhg5 Na5+ Kc7 Rh6 Qd4 Rf6 Rb8 B1e2 Bh7 Be4 g8B Bd5 Be4 Bd3 Bh3 Qfg2 Bgh7 Q2g3 Bhg6 Ba2 Bc6 Bd5 Be4 Rf5 Qd1 Rf6 Beg2 Rf5 Qe4 Rf6 Qef3 Rf5 Bd6+ Kf6 Kd7 Kg6 Qd2 Kh5 Qde3 Kh4 Qd4 Re5 Bc7 Re1 Bd6 Rf1 Be5 Qd6+ Ke8 Qc7 Nc5 Qf5 Nce6 Qgg4 Rb2 Qf6 Rb5 Qg7 Rb8 Qf8+
2Q2nb1/1Q3b1q/Qr3r1b/Nn2N1B1/kq2R3/2QqqB2/P3RrN1/2KNN3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kd7 Kd2 e5 f4 c5 h4 b5 d6 Kc6 d7 g5 h6 g4 h7 e4 h5 c4 h6 b3 f6 g3 f5 g2 f7 b2 f6 b4 d5+ Kb5 d6 b3 Be2 Kb4 Rh2 Qc7 d8N Nc6 d7 Na7 Nc6+ Ka4 d8N Be6 Nb7 Nb5 Ne5 Ne7 Bf3 Ra6 Qe2 Rb6 Na5 c3+ Kd1 Bg7 f8N e3 Nfg6 Rf8 h8Q Bg8 h7 Bh6 Nh4 Ng6 f7 Qa7 Qg7 c2+ Ke1 Qd7 h8Q Qd3 Qf1 e2 Bg5 Rf6 Qhh7 Rb8 f8Q Rbb6 Qc8 Nf8 Qhh8 Qh7 Kd2 c1R Qgb7 Rc4 Qhg7 Rcf4 Qgc7 R4f5 Qc3 Rf4 Bg4 Rf2 Ngf3 g1Q Ng2 Bf7 Nfe1 Bg8 Bf3 Bf7 Na3 b1B Nac2 b2 Nce3 Bf5 Rc1 b1Q Nd1 B5e6 Rh4+ Qb4 Re4 Qh2 Rb1 Qg3 Rb2 Bg8 Kc1 Bef7 Nc2 e1Q Qe2 Qh1 Nce1 Qf1 Qec4 Qd3 Rbe2 Qh3 Q4c6 Qe6 Qa6 Qe7 Q6d7 Qc5 Qdb7 Qce3+
k2Nb3/1q3qN1/1b2BqBb/1nr1r3/1N1R3N/1K3BB1/P3QnQ1/2rNqR2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kd7 d4 h5 Kd2 e5 Kc2 b5 f4 c5 f6 Kc7 d6+ Kb7 d7 h4 f5 h3 d5 h2 f7 e4 f6 c4 d6 e3 g6 c3 g7 e2 g5 e1B g6 Ra7 Kb3 c2 Nc3 Na6 Qe2 Ka8 Nf3 Rh5 Nh4 Re5 Bf4 c1R Bg3 Nc7 Nd1 Nh6 g8B Ra5 g7 Ng4 Bh7 Bf2 g8B Bh6 f8N Bb6 f7 Qf6 d8N Bd7 Nfe6 Nf2 f8Q Be8 d7 Rec5 Rg1 h1Q Ng7 Qb7 Nc6 Re5 d8N Qf7+ Kb2 b3 Bg6 b4 Bg2 Rac5 Rf1 Nb5 Bf3 Qf6 Be6 Qbf7 Qg8 R1c3 Ne3 Na7 Bgf5 Ba5 Bf4 R3c4 Rad1 Rc1 Rd4 R1c2+ Kb1 b2 Nh5 R2c3 Nd1 R3c4 Nc3 Bc7 Kc2 b1Q+ Kd2 b3 Qg2 b2 Bg6 Ba5 Ng7 Qe1+ Kc2 Bc7 Bg3 Ba5 Kb3 b1Q+ Ka3 Qbb7 Nb4 Nb5+ Kb3 Bb6 Nd1 Rc1
q4Q2/3BrNnN/2QN1rBn/5R1B/1K2q1b1/2B4q/P1R1nb1q/1N2N1kr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 Kd2 Kd6 g4 h5 f4 b5 f6 e5 g6 c5 g7 b3 Kc3 b4+ Kc4 h4 g5 b2 f5 h3 g6 b3 f7 h2 f6 e4 Nf3 e3 Bd2 e2 Ne1 Bg4 Qc1 Na6 Bc3 Nh6 g8B Nc7 g7 Ra6 Bh7 Ne8 g8B Qa8 Bh3 Ng7 Rf1 h1Q Rf5 Qh2 Bg6 Rc6 Kb5 c4 Kb4 Be7 f8N Rh7 f7 Bh4 Nf3 Bf2 Ne1 Rh8 Nh7 Ra6 Nf3 e1R f8Q+ Re7 Ne1 Rc6 B8f7 Ra6 Nd2 b1Q Qc2 Qc1 Nb1 b2 Bh5 Qe3 Bfg6 Kd7 d6 Kc6 d7 Qeg3 Rf4 Kd5 d8N Rf6 Nb7 Qd3 Rf5+ Ke4 d5 Ke3 d6 Qf1 Be5 c3 d7 Qfg2 Qa4 c2 d8N c1N Nd6 Ne2 N8f7 Qgf3 Qc6 Qfg2 Na3 b1Q+ Bb2 Qd3 Rc1 Qde4+ Rc4 Qgg3 Nb1 Qgf3 Bg2 Qfh3 Bc3 Bg3 Bf3 Kf2 Bh1+ Kg1 Bg2 Qd3 Bd5 Bh4 Be6 Qe4 Bd7 Bf2 Rd4 Ng8 Nhg5 Rh6 Nh7 Q3g2 Rf4 Qhg3 Rf5 Bf3 Bg4 Rh1 B4h5 Q3h2 Qc5 Nh6 Qc6 Qd5 Rd2 Qgh3 Rb2 Bg4 Rc2 Qe4+
1qK2B1N/3BR2r/kBB2q2/2Q2Nr1/bnr3R1/r5bP/N1B1q2Q/n2Nb3 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 g5 d4 c5 b4 Kc7 e4 Kb7 e6 a5 h3 f5 b6 a4 d6 c4 b5 c3 d7 c2 d5 a3 e5 a2 e7 Qe8 d8B Qg6 e8B Nc6 d6 Qg7 d7 Bc5 e6 Ra6 e7 Nb8 Bd3 Bd4 Ne2 Qf8 Ba3 c1R Nbc3 Nc6 Re1 Rh7 Qc2 Nb4 Nd1 Nf6 Qc5 Nc2 Nec3 Nd5 Rb1 a1Q Rb4 Qf6 Na2 Qb1 Be4 Na1 Bc2 Bc3 Re3 Kb8 b7 Qb3 Rd4 Nb4 Bb6 Ra7 d8N Bd7 Nf7 Be1+ Nf2 Bc6 Bd7 Qb2 e8B f4+ Kh2 f3 Kg3 Ra5 Re7 Ra7 Nh8 Qb1 Bd3 Rc4 Bc2 Ra6 Ba7+ Kc7 b8N Kb7 b6 Ba4 Nc6 Ra5 Rf4 Ka6 b7 Qbb2 Bb6 Qbe5 Kh2 Qb8 Nd1 f2 Nd4 f1Q Nf5 Qd3 Kg2 g3 Rg4 Qd2+ Kf3 g2 Bc6 g1B Bed7 Bd4 Ke4 Qf2 Rg3 g4 Rg2 g3 Rg1 Qe8 b8Q g2 Qh2 Qe2+ Kf4 Qff8 Kg5 Qb8 Kg6 Bdf2 Kg5 Qfd8 Kf6 Qd3 Ke6 Bg3 Rf1 g1R Rf4 Rg2 Rg4 Qf1 Bc1 Qe8 Bh6 Qh5 Bf8 Qh4 Be8 Qe2+ Kd7 Qf6 Reg7 Bgf2 Rd4 Rg5 Re7 Bb3 Rh4 Bg3 Rg4 Qbd6+ Kc8 Ra3 Bed7 Ba4 Nac3 Qde5 Na2 Qb8#
r1R4q/k3NB2/nRR1N2b/1q3Q2/1QB2nR1/1r1P4/1nb1rr1B/qB1BK3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 a5 e4 f5 d3 h5 b6 c5 b5 f3 e5 a4 d6 h4 b7 h3 g6 a3 b6 Kc6 e6 c4 g5 c3 e7 h2 e8B+ Bd7 g7 f4 g6 a2 Bf7 c2 Ne2 Rh6 Nbc3 Qe8 Rg1 h1Q Nd5 Ne7 g8B Na6 b8Q Rh2 g7 Ng6 b7 Rf2 Qd2 Qh8 Ne7+ Kb6 Qc8 Ka7 b8R Ba4 Rg4 Qb5 d7 Bb3 Rb1 a1Q d8R Ne5 Qe6 Nc4 Qf5 Nb2 Rbc8 Rh2 Nd4 f2+ Ke2 Rg2 Qb4 f3+ Kd2 Ba4 Be2 f1R Rd6 f2 Rdc6 Rh1 Ba2 f1R Bgf7 Rff2 g8B Rh4 Bfc4 Bh6+ Ke1 Rhh2 Bg5 c1N Bd1 Bc2 Bgf7 Ne2 Ne6 Nf4 Bh4 Rd2 Bg3 Rh5 Bh2 Rgf2 Qf6 Rd5 Qf5 Rc5 Bd5 Rc3 Bdc4 Na4 Rb2 Ra3 Bb1 Rb3 Ra2 Nb2 Ra5 Qd5 Rb5 Qc5 Rbb8 Qb5 Rbb6 Rde2+
5n2/1nB1Q1R1/3NB1NQ/nR2Q3/N1r3b1/kqPbNKb1/n2rQ3/1qN1r3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 d5 b4 Kd7 f4 Kd6 h4 e5 f6 g5 h6 a5 f7 e4 h5 a4 b6 g4 b7 g3 f5 e3 b5 Kc5 b6 Kb4 f6 a3 h7 d3+ Kf3 a2 h6 e2 Bh3 e1R Be6 d2 Qe2 d1N Na3 g2 Nc4 d4 Bf4 d3 Rh5 d2 Bc7 Nd7 b8Q Bd6 f8N Ra4 b7 Ne7 f7 Ng6 Ne3 Nc3 Rb5+ Ka3 Rc1 Rg8 h8Q a1N h7 Na2 c3 d1B Qa7 Be5 b8Q Nc5 Nd7 Nab3 f8N Na5 Nb6 Rc4 Na4 Ba6 Qbb6 Bd6 Qe5 Qb8 h8N Ncb7 Nf7 Rh8 Rc2 Rhh4 Rd2 Rhd4 Rdb2 Rd2 Qc6 Be7 Nd6 Bh4 R2b4 Bg3 Qcb6 Rc6 Rg4 Rc4 Qc6 Nf4 Rg7 Ng6 Nh3 g1Q Nf2 Qh2 Qcb6 Qh7 Nd3 Qg8 Nc1 Qh7 Nd7 Nf8 Qc6 Qb1 Qcb6 Nh7 Nf8 Qb3 Ng6 Nf8 Nf7 Qd8 Qc6 Qd3 Nd6 Qdb1 Qb8 Bc2 Qd8 Bd3 Qdg5 Bf5 Qe8 Bd3 Qee7 Bf5 Qh6 Bd3 Rd5 Bb5 Rc5 Bd7 Rb5 Bc8 Bg8 Bcf5 Be6 Bg4+
2N4B/1qR1BQ1B/3rr2R/Bb3q2/1rr1B1kP/7n/R2Q1qn1/NbK2Rb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 b4 a5 d4 f5 Kd2 c5 h4 g5 e5 c4 b6 c3+ Kc2 f3 d6 Ke6 h6 g4 b5 f2 h7 g3 d7 a4 b7 a3 b6 g2 Bb2 f4 d5+ Kf5 d6 f3 e6 a2 e7 Ra6 e8B Qe7 d8B Nd7 b8R Ndf6 b7 Ne4 d7 Kg4 Qd2 Ng5 Nh3 g1Q Nf4 Nh3 Bg6 Nf6 Bg2 f1B Na3 f2 Nd5 Nh5 Rc1 a1Q Nb6 N5f4 Ra8 Qb1+ Kd1 Qf6 b8Q Bc5 Nc2 Ra4 Qa7 Re8 Bc6 Ng2 h8R Bca6 Rh5 Bad3 Rh6 Qe7 Bb7 Rb4 Bh7 Be4 Na1 Bb5+ Qe1 f1R Nc8 c2+ Kd2 Bbc6 Bh8 Bb5 Qa2 Bg6 Qf7 Rf6 Ra2 Rd6+ Bd5 Qf1 Ba5 Bb6 d8B Qb7 Bdf6 Ree6 Be7 Qf3 Rf1 Bg1 Qe3 Qb2 Qc3 Bgd3 Bde4 Qf5 Rce1 c1R+ Qc2 Rb1 Rc1 Rbd4 Kd1 Ra4 Qc3 Qbf2 Qd2 Rb3 Rc5 Bb1 Kc1 Rb2 Rc7 Rc4+ Qc2 Rbb4 Qc3 Rcd4 Qd2 Rdc4+
1n1kB1BK/BR2NbN1/NNRr4/rn6/1n1P1bq1/q4Q2/1n5r/2NBQ1q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 a5 b4 c5 e4 h5 g4 c4 e5 a4 d6 c3 e6 a3 e7 h4 d7+ Kf7 e8B+ Ke7 g6 a2 b6 c2 g5 h3 b5 h2 g7 Rh6 g6 Nc6 b7 Rb8 b6 Na7 Na3 Rh5 Nc4 Nf6 g8B Nb5 Ne2 Bh6 Rb1 a1Q g7 Qa3+ d3 Bg5 Be3 c1N Qe1 Na2 Nc1 Nb4 Be2 Ra8 b8Q Rh6 b7 Ra5 Rf1 h1R Ba7 R1h2 Nb6 Qc7 d8N Qc4 Qe5+ Be6 b8N Nd7 Na6 Nb8 Qd5 Bf7 Ne6 Qc8 Bd1 Qd7 Nec7+ Kd8 Rb3 Rc6 d4 Rd6 Rf2 Qe6 Rc2 Qg6 Rc6 Bh6 Qde4 Qg5 Q4e2 Qh4 Qg2 Qg4+ Kf2 f3 Ne6+ Ke7 Rb1 Bf4 Rb3 Be5 Ke3 f4+ Ke4 f2 Qh3 f1N Qf3 Ne3 Rb1 Nc4 Rb2 Qg2 Kf5 Qe2 Rb1 Nb2 Kg5 Bh5 Kh6 Bf7+ Qh3 f3 Kh7 f2 Kh8 f1Q Qh5 Rg2 Qf3 Rh2+ Qh3 Nc2 Bh7 Qg1 Nc4 Qeg4 Qf3 Nd3 Rb3 Nc7 Rb7 Bg3 Nb6 Ncb4 Nf4+ Qe3 g8N+ Kd8 Ne7 Nb5 Nh5 Bf4 Ng7 Qf2 Qfe2 Qfg1 Qf3 Re2 Bg8 Nb2 Rc3 Rd2 Rc6 Rh2+
N2BQRqR/1k4q1/2bBn1bP/1n1rN1R1/K5B1/1n4BQ/2RR2qb/r4n2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 c5 b4 Kc7 d4 g5 Kd2 f5 Kc2 a5 Kb3 g4 d6+ Kb6 h6 c4+ Ka4 g3 d7 f3 d5 c3 d6 g2 h7 f2 e5 f4 e6 c2 e7 f3 e8Q Qf6 d8B+ Kb7 b6 Bg7 b5 Na6 d7 Qf8 h5 Nh6 Na3 Be5 Ra2 Bh2 Bf4 c1N Bd6 Nf5 h6 Nb3 Be2 f1N Rc2 f2 Bg4 Qg8 Nf3 g1Q Ne5 Nfd4 Qd3 Ne6 Nac4 Qg2 Qh3 Nac7 Rg1 Ra7 B8e7 Ra8 d8R Bd7 Bg5 Bc6 Rd7 Qg7 Bd8 Rf8 h8R Qg8 Qhh5 Rf5 Qh3 Kc8 b7+ Kb8 Ka3 a4 Nb6 Ra5 Kb4 a3 Na8 Ka7 b8B+ Kb7 b6 a2 Rhh7 a1Q Rh8 Ka6 b7 Nb5 Bbc7 Qb2 b8R Ra1 Nc4 Rd5 Ne5 Ng3 Rc8 f1B Rb8 Bd3 Rc8 Re1 Ka4 Nf1 Rb8 Bg6 Rc8 Qf2 Rg2 Qff7 Rgd2 Qff8 Rg7 Kb7 Bb8+ Bf7 Rg5 Bg6 Ba7 Qfg7 Bf2 Qc3 Bg3 Qf3 Rf2 Red1 Rcd2 Qg2 Rf8 Bd7 Rc3 Bc6 Rcc2 Ra1+
r2Q2R1/B3n1q1/2bNbBP1/N2Q1q1q/7K/3B3B/N1nkBR2/Nrn1b1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 Kd4 g6 f5 e5 a5 g5 c5 b6 h5 e6 a4 b7 a3 b5 c4 d6 h4 e7 f3 e8B c3 g7 f4 g6 a2 d7 c2 b6 h3 Bd3 h2 Bb2+ Kc5 Bf6 Kb4 Nc3 c1N Nge2 Qe7 d8Q Ra5 Nd4 Ne2 Rf1 h1Q Nb3 Nc6 b8N Ncd4 b7 Ra8 Bd7 Nc1 Bh3 Be6 Rb1 a1B Na2+ Ka3 Nc6 Nc2 b8B Bc3 Ra1 Kb2 Nca5 Qd7 Be2 Bc5+ d4 Ne7 Ba7 Qb7 Qd5 Rhb8 g8B Bd2 Bf7 Qc7 Be8 Rb6 B8b5 Rbb8 Nb4 Kc3 Bbd3 Qe5 Ra2 Rb7 Na1 Rb5 Na6 Rb1 Rb2 Qc7 Rb8 Qe5 Rg8 Qf5 Bg4 Qh7 Bh3 Qg7 Nb4 Be1+ Kg1 f2+ Kh2 f3 Kg3 Bd6+ Kh4 Bh2 Qd8 Bg1 d5+ Nd4 Qb3+ Kd2 d6 Nc2 d7 Bh2 Rh1 Bg1 Rh2 f1B+ Rf2 Bg2 Qd5 Bh1 Qb8 Bg2 d8N Bh1 Ndb7 Bg2 Qg3 Bh1 Nd6 Bg2 Rf1 f2 Na2 Be4 Qg2 Bf3 Qd4 Bc6 Qgd5 Bh2 Rh1 Bg1 Rh2 f1Q+ Rf2 Qg2 Qb6 Qgf3 Qd8 Q3h5+
1R2BBkN/Q3RR2/br1qP3/1r2qQ1N/1B1R1bnq/2K1B1b1/8/1Bnn2q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 Kd2 h5 g4 c5 b4 a5 g6+ Kg7 d6 f3 e5 a4 g5 f4 e6 a3 d5 c4 d7 a2 d6 h4 b6 h3 b7 h2 b5 f2 b6 f3 Nh3 Qf6 d8B Rh6 d7 Ra6 Nf4 Bb4+ Nc3 Ra5 Qa4 Rh3 Nh5+ Kf8 Bd3 f1Q Bb1 Ra8 Qa7 Nc6 b8R f2 b7 Nge7 g7+ Kg8 Ba5 Bd6 Ne2 Qe5 Bb4 Nd5 Nef4 Rb3 Ng6 Qg1 Nh8 f1Q d8R+ Qf8 Re8 Bc7 Re7 c3+ Kc2 Qd8 Be3 Qdd6 Kd3 c2+ Kd2 Qg4 Rf1 c1N Rff7 h1Q Kc2 Qhg1 Kd2 Qef4 Kc2 Ne5 Kd2 Nc3+ Kc2 Kh7 g6+ Kh6 g8B Nd1 g7 Qh4 Bh7 Ng4 g8Q Qe5 Bg6 Qd6 Qd4 Ra6 Qa7 Rb6 Qd8 Qe5 Qd3 Qd6 Qf5 Qe5 Bc3 R3b5 Bb4 Qd6 Ra8 Qe5 b8B Ba6 Kd2 Bd8 B8d6 Bc7 Bdc5 Bd6 Rb8 Bc7 Bd3 Qd6 Rb1 a1B Rd8 Qe5 Rd4 Bc3+ Kc2 Be1 Be4 Bg3 Bc6 Qfg5 Be8 Qd5 Rb3 Bcf4 Bh7 Qd6 Rb2 Ndf2 Kc3 Qg7 Qd5 Qge5 Bb1 Nb3 Qe4 Nc1 Qf5 Nd1+ Kd2 Qdd5 Rd7 Rb8 Bc3 Ra5 Rb6 Rb7 B3b4 Rb5 Be7 Qdd6 Bf8+ Qg7 Rde7 Rb8 Ng6 Kh7 Nh8+ Kg8 Rbb7 Qge5 Rb6 Rb7 Kc2 Rd7 Rb8 Rdb7 Kd2 R7b6 Kc2 Nb2 Kc3 Nd1+
1N3bb1/KnBBP1Nq/3r2rN/3nNBn1/3RN2b/Q1r3Qq/2R5/1krB4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 Kd6 g4 Ke5 d4+ Ke4 d6 c5 d7 f5 b6 a5 g6 h5 b5 c4 g7 c3 d5 c2 g5 f3 b7 f4 b6 a4 d6 h4 g6 h3 Ra2 h2 Nc3+ Kf5 e4+ Ke5 Be2 a3 Qd3 Rh5 Bd1 Qe8 d8N Nd7 b8Q Rh8 b7 Ngf6 g8B Qe6 g7 Rh3 Bh7 Ra6 g8B Nd5 Be3 c1R Rc2 a2 Bb6 Rh6 Ba5 Nc5 d7+ Rd6 Qa7 a1B b8N Ne7 Bc7 Nb7 Qa3 Nd5 Bg6 Qf7 Ne6 Qh7 Bf5 Rg6 d8N Bb2 Ng7 Be6 Bf7 Ba1 Be8 Bg8 Bed7 Bb2 Qb5 Kd4 Nf7 Ba1 Qbb3 Kd3 Ra2 Bb2 e5+ Kd2 e6 Rc2 Be2 Kc1 Ne4 Kb1 e7 Rc5 Qe3 Bf6 Nh6 Rc3 Rc2 Bh4+ Kf1 f2 Nf3 Nc5 Ne5 Nb7 Rg1 h1Q Qg3 Qh2 Bf3 Qh1 Ke2+ f1R Kd2 Rc1 Rd1 Qh3 Bh5 Rc4 Kd3 Rc3+ Kd4 f3 Bhg4 Qg2 Rdd2 f2 Bd1 f1N Rd3 Qh3 Rdd2 Rf3 Kc4 Nh2 Kb5 Rc3 Rd4 Nd8 Ka5 Nf3 Kb5 Ng5 Ka5 Nc6+ Ka6 Na5+ Ka7 Nb7
nQ3B1B/N1N5/K3NR1b/N1B2b2/1b1n2Q1/2nP2qR/nrnbB1B1/1k4r1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 b4 e5 g4 h5 g5 c5 d6 a5 f6 h3 f7 h2 g6 a4 f5 a3 g7 h4 f6 a2 d7 h3 b6 Na6 Kb5 c4 b7 c3 b8N c2 Bg2+ Kd3 Qe1 e4 Qf2 e3 Nc3 e2 Nc6 e1B Qf4 Nh6 g8B Nc7+ Kb6 Nf5 b5 Bb4 f8B Nd4 f7 Qg5 d8N Bf5 Bc5 Qg3 f8B Rb8+ Nb7 Na8+ Ka6 Rh6 b6 Rg6 Bb2 c1B Nd5 Kc2 d3 Bed2 Nc7 Rg5 Rb1 a1N Ne2 Rg4 Rf1 h1N B8d5 h2 Na7 Nf2 Na5 h1N b7 Nd1 Bdf3 Nhf2 Qe4 Rg8 Qg4 Ne4 Nf4 Ndc3 Nfe6 Na2 Be2 Nec3 Rh1 Bh6 Rh3 Bcd2 Rf1 Rg6 Rf4 Kb1 Rf3 Nac2 Ba1 Re8 b8Q Re7 Ne8 Rb7 Nc7 Ba3 Rf4 Rb2 Rf3 Bb4 Rf2 Be4 Rf6 Bf5 Bh1 Ndb5 Qf4 Qe1 N7c6 Rb3 Rf7 Nd1 Na7 Rg1 Bh8 Rb2 Rf6 Nbd4 Qg4 Qg3 Bg2 Ndc3
3Rbnq1/1B3b2/1n1P1rBN/BQ1B2bQ/2N2krr/6b1/4Rrb1/1NKNB3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 b4 c5 g4 f5 g6 h5 b6 a4 b5 f3 b7 a3 b6 f4 e5+ Ke7 g5 a2 g7 f2 g6 c4 e6 Kd6 e7 h4 e8B f3 Bg2 f1R Rh2 f2 Qh5 h3 Ne2 Ra4 Nec3 Ne7 g8N Bd7 g7 Ng6 Nd1 c3+ Kc2 Bb5 Bd2 Nd7 Kc1 c2 b8N Bc4 b7 Nb6 Bh1 Bb5 Bf7 Be8 Nc6 Qb8 Rg2 h2 Ne5 Be7 Nh6 Nf8 g8B Bh4 Bg6 Bg3 Be1 Bf7 Kb2 c1B+ Kc2 Bg5 Nc4+ Ke7 d6+ Kf6 d5 Rh7 Ncb2 Ke5 d7 Rg4 d8B Kf4 d6 Be8 Bd5 Rf7 Ndc3 Rf6 Kc1 Qc8 b8Q Qc4 Bf3 Qg8 Nc4 Rh4 Qb7 Rg1 Qc6 f1B Re2 Bg2 Qb5 Rf1 Nd1 Rf2 Bc6 Bd5 Bb7 Bdf7 Bhf3 h1B Bfd5 Bg2 Bc7 Na4 Bca5 Nb6 Nbd2 Rg4 Rb1 Rh4 Rb3 a1R+ Nb1 Ra4 Rbe3 Bd7 Re8 Bc6 Ra8 Bce8 Rd8 Rb4 Nce3 Ke5 Nd2 Rbg4 Nb1 Kf4 Nc4 Qg7 Bc2 Qh8 Bg6 Qg8
KB6/1N2NRR1/N3nr2/1R1nr1b1/N2brkqb/3P3B/1Q2n3/RQ1R1bn1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 a5 g4 e5+ d6 h5 b4 e4 b6 a4 b5 e3 f6 a3 d3 a2 b7 h3 f7 h4 b6 h2 Nf3+ Kf4 g5 h3 g6 Rh5+ Ne5 Qh4 g7 Ra6 Nc3 Nf6 g8R Nd5 Na4 Nd7+ Kc6 Bh6 b8Q Nf8 d7 Ne6 d8N Bg5 Nb7 Qg4 Rg7 Bh4 Rg1 h1R f8R+ Rf5 f3 h2 Rff7 Rf6 Qe2 Ra5 Bh3 Bg5 Rd1 Re1 Ba3 h1N Qb2 Ng3 Bd6 Ne2 Qb1 Ng1 Ng6+ Kf5 f4 e2 Nbc5 Bd7+ Kb7 c6 Na6 c5 Ka8 c4 b7 c3 Qh8 c2 b8R Rc5 Rb5 c1N Bb8 Bc8 Qd8 Rc4 Qb6 Re4 Qf2 Rf1 Qh2 e1B Qhb2 Beh4 Re1 Nce2 Rd1 Nd8 Ne7+ Ke6 Nc6 Kf5 Na5 Re1 Nb7 Ne6 Bg2 Qh3 Bf1 Kg4 f5 Re5 Bg2 Kf4 Bf1 Qg4 Bh3 Rh6 f6 Bd7 Re7 Rg6 f7 Rf6 f8N Bc8 Ref7 Bd7 Q1c2 Bc6 Rac1 a1B Qbb1 Bd4 Ng6+ Kf3 Ne7 Kf4 Rb3 Ne3 Rb2 Bg2 Rb5 Bf1 Qbb2 Nd5 Ra1 Ng3 Qbb1 Re4 Qcb2 N3e2
1k4B1/nn1n3N/1N1bBN1Q/2b3qB/3N1N1P/1r4R1/Qr1R1r2/r1Bn1bK1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 b4 c5 h4 Kc7 e4 f5 d4 a5 b6+ Kb7 e6 g5 e7 c4 e8B f4 d6 a4 d5 f3 d7 c3 d6 c2 b5 a3 e5 a2 e6 Nh6 e7 Ra5 Bf7 Ra8 e8B Qe7 d8Q Nf5 d7 Nc6 Be6 Na7 Ne2 g3+ Kg1 g4 Rh2 g2 Qd2 Kb8 b7 Qg5 Q8a5 Bd6 d8N Ne3 Nf4 Nd1 Bh5 Re8 Bg8 Re3 Nf7 Rb3 Na3 Be6 Rb1 a1R Nc4 Bf5 Qa3 Bd3 Nb6 Ra2 Qa6 Rab2 Qa2 Bc4 Rh3 Bd3 Rg3 f2+ Kh2 g1N Bh3 f1R Ra1 Qd5 Ng5 Nf3+ Kg2 Qf5 Nh7 Ne5 Kh2 Rf3 Kg1 Nd7 Qe3 Qf6 Qe6 Qf5 Qh6 Qg5 Rb1 Bf1 Ra1 Kc7 b8N Rf2 Nc6 Kb7 Nd4 Kb8 Rf3 g3 Bhe6 g2 Rg3 Nc8 Nc4 Ra4 b6 Na7 b7 Ra5 Nb6 Ra6 Be3 c1N Bd2 Nd3 Bc1 N3c5 Rb1 Rbc2 Rb2 Rce2 Rd2 Ra5 Rdd3 Reb2 Rd2 Ra6 Qb1 Ra1 Qa2 Kc7 b8N Nb7 Nbd5+ Kc8 Ndf6 Kc7 Na6+ Kc8 Nb4 Kc7 Nbd5+ Kb8 Kh2 g1B+ Kh1 Rff3 Nb6 Be3 Kh2 Rf2+ Kg1 Bh3 Nde2 Bec5 Nd4 Bf1
R1r1B2r/bRqn1QK1/1B1R4/1Bq2R2/bP1nrqR1/1Q2rN1q/7N/6Bk w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 b4 c5 d4 e5 g4 a5 f4 c4 f6 h3 b6 c3 f7 h2 b7 a4 f5 h4 f6 c2 g5 a3 g6 a2 g7 h3 Be3 c1R Qb3 Rc4 Nf3 Ra3 Bg1 Nd7 Kf5 e4 Kg6 e3 b8R e2 Rb7 e1R Nbd2 Nh6 g8B Re4 Rd1 Rc6 Bb5 a1Q Nf1 Qc7 Rd3 Bg7 f8R Nf5 Bf7 Qc1 Be8 Qf4 f7 Rc3 Rd1 Rce3 Rg8 Ra8 Ra1 Rb8 Ra8 Bf6 f8R Bh4 Kf7 Bf2 Rg4 Qc5 Rba7 Ba6 Rb7 Rc8 Kg6 Ng7 Rf5 Ne6 Ba4 Bd3 Bb5 Bc2 Kf7 Nd8+ Kg7 Nc6 Qc4 Ba4 Qd3 Ke7 d6+ Ke6 Qc2 Re5 Qb1 Kd5 Qb3+ Ke4 d5 Nd4 Rf7 Nb8 d7 Qc7 d8Q Nd7 d6 Qc5 Qc7 Re7 Ne5 Re6 Nd3 Kf3 Rf6 R6e4 Rf5 Nb8 Qcf7 Nd7 Ng3 Kg2 Ne5 Qc7 Nf3 Ne2 Nd2 Rf3 Kg6 Ne5+ Kg7 Ba7 Bf2 Rd3 Rc1 h1Q d7 h2 Rc6 Rde3 Nf3 Qc1 Rd6 h1Q Bg1 Qh3 Nf1+ Kh1 N1h2 Nd4 d8B Qd7 Qe6 Qc5 Bb6 Qdc7 Qb3 Nd7
2R1B1Q1/2B2n2/1q1r3b/R3P1qq/r3QqRN/1kb1B1bb/1n2K2B/1R3BN1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 b4 a5 g4 c5 b6 h5 b7 f5 g6 h4 g7 h3 g5 a4 b5 f3 g6 f2+ Ke2 h2 b6 f4 Nc3 a3 Kf3 c4 Qe1 a2 Nd1 c3 Ne3 c2 Qe2 Qg5 Ng2 Ra4 Nh4 Na6 b8R Bh3 b7 Rh6 Rc8 Nb4 Be3 c1B b8R Nd3 Rb4 Nb2 e5+ Kd7 d6 Ke6 d7 Kd5 d8B Bd2 Rb1 a1B Bb6 Be1 Rbc4 Rh8 Rb4 Nh6 g8B+ Nf7 g7 Rh6 Qd3 Rd6 Ke2 Ra6 Bh7 Ra4 g8Q Bh6 Qf5 Rd7 Bc7 Rd6 Rb5+ Kc4 d5 Kc3 Ra5 Kb3 Bg6 Qg3 Ngf3 Qg5 Rg1 h1Q Rg4 Qg1 Qe4 Qh5 Bf5 Qg3 Bd7 Qg1 Rg6 Qgg5 Be8 Qe7 Bg2 Qd8 Rg4 Qdg5 Rc1 Nd1 Bd2 Bc3 Rb1+ Nb2 Bb6 Rf6 d6 Rg6 d7 Rf6 Ng1 Rd6 Kf3 f1Q+ Bf2 Qb5 d8B Qb4 Bde3 Qb6 Bg3 Bf2 Bh2 Bg3 Ke2 f3+ Kf1 f2 Ke2 Bd4 Bc7 f1Q+ Kd2 Qff5 Ke2 Qff4 Bf1 Bc3
3b1q1R/1Q6/B1P4R/1B1n1K2/QbBk3B/2nrN1rR/b1qbrRB1/2N4r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 e4 f5 c4 a5 b4 a4 h4 g6 c6 a3 c5 a2 c7 d4 h5 d3 b6 d2 b5 g3 h6 g2 h7 Ra5 b7 Ne7 b6 Qd3 Qa4 d1R Na3 Nbc6 b8Q Nb4 b7 Qc2 Ne2 g1B Bg2 Rd3 Nc4 Ned5+ Kg5 f4 Ne3 f3 Rh6 Rg8 h8R f2 R8h7 Bd7 c8B f1Q Bb2 Qf2 Rf1 a1B Nc1 Na2 Bd4 Qf3 Rf2 Nac3 Qa7 Bd6 b8R Qf8 Ba6 Rb5 Kg4 Rb2 Qb7 Ra2 Rh3 g5 R7h6+ Rg6 Rc8 Be8 Rb8 Bf7 Rc8 Bh2 Ra8 Bf4 Rd8 Qg7 Rdh8 Qf8 Bc4 Bc7 Ba6 Bd8 Bc4 Nb5 Bc3 Bb2 Be1 Nc3 Ba6 Ba3 Bc4 Bb4 Ba6 Bc7 Bc4 Ke7 e6 Kf6 e7 Ke5 e8B Kd4 e5 Bd8 Kf5 g4 e6 g3 e7 Bg5 Bc6 Rg8 Bf1 g2 e8B g1R B6b5 Rg7 Ba6 Rh1 Bg2 Bf4 Beb5 Rg3 Nd1 Bd2 c6 Rg8 Rf1 Rb2 Bh4 Rgg3 Ne3 Rb1 Na2 Re1 Nc1 Re2 Rf2 Nf6 Bcd5 Bg8 Bde4 Bb3 Bd5 Ba2 Bdc4 Nfd5+
3nQ1b1/N3B1b1/PNN1B3/bRn1R1KB/r3Q2n/3q3b/B3r2k/1q1N1B1n w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kg3 f5 Kf4 h5 g4 b5 a4 c5 d4 b3 e4 b2 d6 Ke6 d5+ Kf7 g6+ Kg7 g5 h4 d7 h3 a5 c4 d6 b4 e6 c3 e5 c2 e7 h2 e8B b3 a6 Nh6 e6 Nf7 e7 Rh4+ Qg4 Ra7 Be3 c1B Ne2 Bd2 Na3 b1N Nc3 b2 Nd1 Ba5 Nc4 Nd2 Bc5 b1Q Nb6 Nf3 Ra2 Bb7 Rb2 Bd5 Rb5 Rb7 Rg1 h1N Rg2 Rh2 Re2 Nh4 Re5 Re2 Qg2 Rc7 Qe4 Ba2 Ba3 Rc4 Bc5 Ra4 Ba3 Qc8 d8N Qc3 d7 Qcd3 Nc6 Nd8 Na7 Bg8 Bb4 Nf7 d8N Nd7 Bd6 Nc5 Ndc6 Nd8 Bf7 Kh8 g7+ Kh7 g6+ Kh6 e8Q Kh5 Be6 Bh7 g8B Bg7 Bgf7 Bg8 Ne3 Nf3 Bf8 Kh4 Ng2+ Kh3 Be7 Nh4 Ne3+ Kh2 Kg5 f4 Nd1 f3 Ba2 Bh8 g7 f2 Bh5 Rc2 Bfe2 f1B Be6 Bg2 Bf1 Bh3 Ba2 Re2 Be6 Bh7 g8B Bg7 Bgf7 Bg8 Ba2 Qbc2 Bfe6 Qb1
1q2bnQn/4K2N/1NN1NBQr/1R2QB2/r2RqP2/1q1nQQpb/5b2/5k2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 g5 b4 a5 h4 d5 f4 d3 f6 g4 h6 d2 f7 Ke3 h7 Kf2 b6 d4 h5 g3 b5 d3 b7 a4 b6 a3 h6 a2 Bh3 Ra3 Nc3 Be6 Bf5 Rb3 Rh5 Rb4 Nd5 Ra4 Qf3+ Ke1 Nh3 d1Q Ng5 d2 Bb2 Bg7 f8N Bd7 Nge6 Ra6 Bf6 Ra4 Rb1 a1Q Rb5 Qab1 Rb4 Nc6 b8Q Be8 b7 Nd4 Qe5+ Qe4 b8N Qb3 Nb6 d1B Nc6 Qb8 Rb5 Be2 Rh2 Bf1 Rd2 Bh3 Qe3+ Kf1 Qd5 Nf3 Rd4 Qec2 Qde4 Ne5 Kd5 Nd7 Q4f3+ Qf2 Qg4 Qe1 Qg6 Qbb4 c5 Qec3 Nc7 e5 Kd6 e4 Ke6 Ne7 Kd6 Rg8 h8Q Qcb3 Nh7 Bf8 Qhg7 Rh8 Q7f7 Bg7 Qg8 Nf8 Qf3+ Ke1 Qe6 e3 Qe5 e2 Qee3 Qb7 Ne6 Qc8 Rd2 Qe4 Rd4 Qb7 Na5 Qa8 c6 Qc8 c7 Qb8 Qg5 Neg6 Nc6 Ne5 Ke7 Nf7 Qfg4 Kf1 c8Q e1N Qg6 Nd3 Qc7 Rg8 Qe5 Bh8 Q6h5 Rg5 Qg6 Rh5 Qgf3+ Nf2 Nhg5 Bg7 h7 Rh6 Qg4 Nd3 h8Q Qc2 Qhh7 Nh8 Qg8 Qb3 Nh7 Ra3 Ra4 Nd7 Q5d4 Qg2 Qc1+ Qd1 Bg5 Qe4 Bh4 Be5 Bf6 Nf8 Qdc5 Ba1 Qe5 Bd4 Qf3+ Bf2 Qce3 Qb3 Rd4 Ra4
N1BN1Nk1/q4n2/2b3n1/2qN1Br1/3BKp2/1RQb1Pq1/rR5Q/bn4BN w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 a5 Ke3 d5 c4 h5 g4 f5 e6 a4 e7 Kf7 e8N h3 c6 a3 g5 a2 f3 h2 c5 h4 b6 h3 b7 Na6 b8B Be6 c7 Ne7 c8B Qb6 g6+ Kg8 g7 Bd7 Nd6 Rh6 Qd2 Be6 Nf7 Qb2 c6 Nc5 c7 Kh7 g8N Qg7 Ba7 Ng6 Nd8 Rh5 Ne7 Rg5 Bb2 Nb7 Nc3 Nd6 Rb1 a1Q Kd3 f4 e4 d4 e5 Qa3 Ne2 Bd5 e6 Nf7 Ng3 Bc6 Bc5 Qa4 Ncd5 Qa7 Ke4 d3 Bbd4 Qg8 Rb2 Bg7 Qf2 d2 Bd3 d1N Rg1 h1Q Qh2 Qg2 Nh1 Qg3 Rgg2 Be5 Rb3 Qf8 Rgb2 Kh8 Bc2 Bg7 Bg1 Kh7 Bcd4 Nc3+ Kd3 Nb1 Ke4 Ngh8 Ng6 Qfc5 e7 Kg8 Nf8 Ng6 e8N Bh8 Bg4 Bf6 c8Q Bh8 Qe2 h2 Qc7 Bg7 Bc8 Bh8 Qa5 Be5 Nc7 Bg7 Nf2 h1B Qc3 Bg2 Nh1 Bf1 Qf2 Qb8 Qfd2 Ra2 Qh2 Qba7 Na8 Qb5 Qa5 Ra1 Bde3 Bh3 Ra2 Bc3 Bd4 Bb2 Qc3 Qbc5 Kd3 Bg2 Ke2 Bh3 B2f5 Bg2 Kd3 Bf1+ Ke4 Bfb5 Qc4 Bc3 Rf2 Ra2 Qb4 Bb2 Qc3 Ba1 Rfb2 Bd3+
Q1RBkrR1/Q2b1q2/4b2b/1n3r2/Bp1N2P1/1B1KQq2/BQ2Qnn1/4qN2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 e5 f4 b5 a4 h5 d4 c5 g4 h4 g6 e4 f6 h3 f7+ Ke7 d6+ Kd7 f5 h2 d5 b3 f6 c4 g7 b2 a5 b4 a6 c3 a7 c2 Bg5 c1Q Nf3 e3 Kd3 e2 Nbd2 b1N Nd4 e1Q Qe2 Nh6 g8B Bg7 f8Q Nf5 f7 Qe8 Bd8 Be5 Qh6 Nc6 f8Q Bf4 Qff6 Bg3 Qhe3 Rb8 a8B Nh4 Ra5 Na7 Rc5 Ng2 Qfe5 Bb7 Rc8 Qcd1 Qg7+ Qe7 Qh7 Ke8 d7+ Kf8 d6 Nc3 Ba2 Bd5 Bc6 Rb5 Bb3 Qf7 Ba2 Rc5 Ba4 Nab5 B2b3 Bf4 Ba2 Nh4 Bg2 Bc6 Bgd5 Ng2 Bdb3 Rf5 Rf1 h1B Rf3 Qa1 Nf1 Ne4 Rh3 Rg8 Rh5 Qg3 Rg5 Qae1 Qh2 Qf3 Qb2 Nh4 Qhe2 Ng2 Rg6 Bh6 Rg5 Qd5 Rg6 Rh8 Rg8+ Kf7 Be7 Qe6 d8Q Bd7 Qc7 Qd5 Qa7 Nf2+ Kc2 Be6 d7 Qb7 d8Q Qd7 Rg6 Rf8 Rg8 Qe8 Qda5 Qd7 Bd8 Ke8 Qa8 Qf7 Q5a7 Qf4 Qbc1 Nh4 Qa1 Bc6 Qb2 Qf3 Qe5 Bd7 Q5e3 Qa1 Kd2 Ng2 Kc2 Qb1+ Kd2 Qe1+ Kc2 Nh3 Kd3 Nf2+
1n1q4/1R4bb/r1r4N/2q3P1/1BnNnb1K/1BN1NQ2/Bp1Q1B2/k1rBR3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 Kf2 h5 Kg3 c5 a4 e5 d4 b5 g6+ Kf6 a5 c4 d6 c3 a6 c2 d7 b3 g7 b4 d5 b2 a7 e4 d6 e3 Na3 b1Q Qf3 e2 Be3 c1B Nc4 e1N Bf2 b3 Ne2 b2 Nc3 Nc2 Kh4 Qa2 g4 Be7 g5+ Kf7 f6 Ke6 f5+ Kf7 Be2 Bf4 Ne3 Na3 Rae1 Qd5 Bd1 Bf8 Rh2 Rh6 Rh3 Qe8 d8Q Nc4 d7 Qc5 Qa5 Bb7 Rhh1 Qec8 Rhf1 Be4 d8N+ Ke8 f7+ Kd7 f6 Kd6 Rh1 Bh7 Rh3 Ke5 Rg3 Kd4 Qb4 Be7 f8N Kd3 f7 Rc6 Nfe6 Bf8 Nd4 Nf6 g8B Bg7 f8B Ne4 Nf7 Qd8 Nh6 Kd2 Qa5 Kc1 Be7 Qb5 Bb4 Qc5 Ncd5 Kb1 Be6 Na3 Nc3+ Ka1 Ba2 Nc4 Rg4 Bd6 Rf4 Bc7 Rf7 Bf4 Kh3 h4 Rb7 Qde7 Kg4 h3 Kh4 h2 Qd8 Bc7 Qd6 h1R+ Qh2 Qd8 Bab3 Bf4 Ba2 Na6 Bab3 Rac8 a8B Nb8 Ba2 Rg6 Re7 Qe5 Re2 Qe8 Bg3 Qh8 Bd5 Qd6 Rb7 Na3 Ba4 Rc1 Bd1 Qc5 B5b3 Ra6 Re1 Nc4 Qd2 Qd8 Bf2 Rcc6
nn1Rr2K/1r1N1b2/1Q1q1N1Q/QpP3bN/2Q2N2/B3r1RB/1n5k/2N1qq2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 Kf6 Ke4 b5 a4 g5 h4 e5 f4 b3 c4 g4 c6 b2 c7 g3 a5 d6 h6 g2 h5 Qe8 h7 Na6 h6 Qd7 Qd4 Bg7 Rh3 Nb4 a6 Qe8 a7 Nd5 Qb6 Ba6 c8Q Bb7 Nc3 b1R Na2 Rb2 Ne2 g1Q Ng3 Rc2 Ba3 Qe6 Rd1 Nge7 Nc1 Rb8 a8Q Nc6 Qaa5 Re8 h8N Nc7 h7 Rc3 Ng6 Na8 h8Q Qf2 Bg2 Qf1 Qh6 Qe7 Kd5 e4 c5 e3 Nh5+ Kf7 f6 e2 f5 e1Q Qcd8 Re3 Rg3 Bc8 Qd7 Rb7 Ngf4 Nb8 Bh3 Bf8 Qdc6 Be6+ Kd4 Bc4 Qe4 d5 Qc2 Qd8 Qe4 Be7 Ke5 d4 Rd2 d3 Rd1 Rh8 Rd2 Ke8 f7+ Kd7 f6+ Be6 Rd1 Rf8 Rd2 Re8 Rd1 d2 f8N+ Kc8 f7 Bg5 Nh7 Kd7 f8N+ Ke7 N7f6 Bf7 Be6 Qd6+ Kf5 Qg1 N8d7 Qef1 Re1 d1N Qc4 Nb2 Rd1 Qgf2 Bd5 Q2e1 Bg2 Bd5 Kg6 Be6 Kg7 Bf7 N4d5+ Ke6 Ndf4+ Kf5 Nf8 Qe6 Rd8 Qd6 Kh8 Bh4 Rg7 Bg5 Rg8 Ke5 N8d7+ Kf5 N6d5 Kg4 Bh3+ Kf3 Nd5f6 Kf2 Qe4 Kg1 Qc4 R8e6 Rg7 Kh2 Rg6 Bh4 Rg4 Bg5 Rg3 Re8+
1q3Bb1/2rB3k/1N1rPn2/RQ2B3/1bQR1p2/Rq1n1Nn1/1q4r1/1B1RB2K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 g4 h5 Kg2 a5 b4 f5 d4 Kf7 e4 Kg7 g6 h4 e5 a4 g5 a3 b6 a2 b5 c4 d6 c3 d5 c2 e6 Rh5 d7 Bb4 b7 Bd6 b6 Be5 d6 Bf6 Ba3 c1Q Nd2 Ra4 Bb5 Bb2 Ngf3 Na6 b8B Qb1 b7 Bc3 Nc4 Rh7 Qd5 Nb4 Rd1 h3+ Kh1 h2 Nb6 Nd3 Qc4 Bb4 Bc7 Ra6 b8Q Qe8 d8B Bb7 d7 Be4 Be5+ Nf6 Bdc7 Qb3 d8R Kh8 Rd4 Qc8 Qb7 Qb8 Bd7 Re7 g7+ Kh7 g8R Rg7 Nd5 Rd6 Ba5 Rg6 Nb6 Rg7 Rac1 a1Q Rc3 Qab2 Rc8 Rg8 Rc5 Rc8 Qc6 Rc7 Q6b5 Qb1 Kg2 h1N Kh2 Ng3 g6+ Kh8 g7+ Kh7 Kg1 Q1b2 g8B+ Kg7 Ng5 f3 Bh7 f2+ Kh2 f4 Nf3 Bg6 Rcd5 Bf7 Be4 Nc5 Bb1 Bg8 Re3 Nd3 Rc5 Nf5 Kh1 Kh7 Rcd5 Bc5 Be1 f1R+ Ng1 Rf2 Nf3 Bb4 Rc5 Ba5 Rcd5 Rg2 Bc5 Rdc6 Bf8 Bb4 Rc5 Rd6 Rcd5 Nc5 Rc3 Nd3 Rc5 Q3c2 Ra3 Qa4 Qc6 Qac2 Rca5 Qcb3 Q6b5 Ng3+
b7/1Q1Q1BQ1/Kbq1Pq2/brpBB2N/3n1B2/4nQ2/R1r1N1RB/2qr3k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 c5 d4+ Kd6 b4 a5 g4 f5 g6 h5 g5 a4 g7 h4 e5+ Kd7 e6+ Kd6 g6 a3 b6 f3 Kb5 f2 b7 a2 Rh2 f4 Ne2 f3 Nd2 h3 Bg2 Ra3 Nf1 Be7 Nfg3 f1R Nh5 Nh6 g8Q f2 g7 Nc6 b8Q+ Qc7 Bg5 Rb3 Qb7 Bd8 Ka6 Nf5 b5 Ne3 b6 Rb5 Qb3 Rd1 Bf4+ Ne5 Qf7 f1Q g8B Qc6 Qg7 Bd7 Bf3 Be8 Rf2 h2 Bf7 h1Q Rg2 Qh4 Qc3 Qf6 Be4 Nc2 Qf3 Ne3 Rb1 a1B Rb2 Qe1 Ra2 Bc3 Bh2 Qd2 Bf4 Qc1 Bh2 Bc7 Bf4 Ba5 Bh2 Ke7 d6+ Kd8 d7 Ke7 d8B+ Kd6 Bd5 Rf8 Bg8 Bg6 Bf4 Be4 Bf7 Rh8 Nhg3 Rhh1 Nh5 Rd2 Bh2 Rc2 Bf4 Rd1 Bh2 Qg6 Bg5 Qf6 Bgf4 Bd8 Qa8 Qc8+ b7 Bdb6 Bb3 Bc6 d5 Qd7 Qc8 Qc7 b8B Ba8 Ba7 Qd7 Qb7 Qc6 Bb8+ Qc7 Rg6 Ke7 Qe4 Nc6 Rg3 Nd4 d6+ Kd8 d7 Ke7 Bd5 Qc6 Bh6 Qc7 Qh1 Kd6 d8Q+ Ke5 Qd7 Kf5 Rg6 Qc6 Bg5 Kg4 Bbe5 Kh3 Qe4 Qf3 Qf4 Kg2 Bh6+ Kh1 Rg2 Qg4 Qf3 Qg6 B6f4 Qf6
1B1r2k1/nQ4B1/2pn2N1/4B1rb/1P4R1/b2BRR1B/rqn3QN/1Kb1Rq2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 h5 f4 a5 d4 e5 Kd2 e4 Kc2 e3 d6 a4 b6 a3 d5 h3 d7 e2 g5 e1B b7 h2 g6+ Kg7 f6+ Kh6 f7 Kg7 d6 h4 f5 h3 Nd2 a2 f6+ Kh6 g7 Kh7 Qg4 c6 Ndf3 Qe7 d8Q Qe8 d7 Na6 b8B Bd2 Bb2 Nc7 Re1 a1N+ Kb1 Qe5 Re3 Nc2 Qg2 Ra2 Ne2 Nh6 Qe7 Nb5 d8R Bg4 Qb7 Na7 Nf4 Nf5 Ng6 Nd6 Bd3 Bc1 Rhe1 h1R Nh2 Bh5 Rd7 Be7 f8R Rg1 f7 Bg5 g8B+ Kg7 Ba1 Ba3 Bh7 Qf6 Be5 Bh6 Re7 Bf4 Re4 Bfc1 Rg4 Rg8 Nh4+ Kh8 Bhf5 Qg7 Ng6+ Kh7 Rc8 Rd8 f8B Kg8 Bd7 Qf6 Bg7 Qf1 Rf7 Qf2 Rf3 Qd4 Nf1 h2 Rc7 h1Q Nh2 Qf2 Bc8 Qd2 Rfe3 Qc3 Rf7 Qd2 Rff3 Qc3 Qe2 Rg3 Qg2 Qf1 Rge4 Qd2 Bh3 Rg5 Ref4 Qc3 Rg4 Qb2+
4b1N1/2B1q2B/rbpP3B/N3K2k/1QBR2N1/qN4rn/2bR1nq1/rQ1B4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 f5 b4 Kf7 e4 Kg6 d4 a5 g4 h4 b6 a4 b5 a3 b7 c6 b6 h3 e5 a2 d6 h2 e6 Nd7 b8B Qc7 d5 Bh6 b7 Qb6 e7 Qa7 e8B+ Kg7 g6 Qa4 g5 Ndf6 d7 Ng4 d8N Nf2 d6 Nf6 Bc7 Nh5 b8Q Rg8 Qb4 Bd7 Nh3 Ra6 Bc4 Qa5 Bef7 Be8 Nd2 Qa4 Rf1 Qa3+ Nb3 h1R Rb1 a1Q Nb7 Qe5 Na5 Qe7 Rb2 Rg1 Re1 Rh1 Rd2 Rf1 Kg2 f3+ Kh2 f4 Re4 Rg1 Red4 Rg3 Bfe6 Rf8 Qf1 Rf6 Bg8 Re6 Bh7 Re1 Bb2 Ra1 Qb1 Nd3 Bc1 f2 Qc2 f1Q Qb1 f3 Nf2 Nhf4 Ng4 Nf2 Be2 N4h3 Bd1 Kf8 g7+ Kf7 g8B+ Kg7 g6 Be3 Bc4 Qe2 Nf6 Kh6 Ng4+ Kh5 g7 Qf1 g8N Qe2 Re4 Bb6 Red4 Ne4+ Kh1 f2 Kh2 Qf1 Rc2 Qe2 Bh6 Qf3 Re2 f1B Red2 Nef2 Ne5 Rg5 Ng4 Qd5 Kg3 Bd3 Qa4 Bc2 Qb4 Ng1 Kf4 Qg2 Bd5 Rg7 Be6 Ngh3+ Ke5 Rf7 Nc1 Rf3 Ncb3 Qf7 Bd5 Rg3 Bc4 Qe7+
8/B1Q1Nb1k/pR6/Q1Qqqnb1/6qn/1PRr2rB/1n1N3Q/1QrR1K1R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 f4 Kg7 g4 h5 f6+ Kh7 d6 e5 d5 c5 d7 e4 b3 a6 g5 c4 b6 e3 b7 e2 f7 h3 f5 h4 f6 h2 d6 h3 Nf3 c3 Nd4 c2 Nd2 Ra7 Nc6 Bh6 f8Q Qe7 d8Q Nd7 b8Q Ne5 f7 Be6 d7 Nc4 Qa5 Nb2 d8Q Rd7 Qdc7 Rd3 Rb1 Qd6 Ne7 Qe5 Qfc8 Bc4 f8R Bf7 Qcc5 Rg3 Qc8c7 Rd3 Kf2 e1N Rc8 Ng2 Ra1 Nh4 g6+ Kg7 Bg2 Bg5 Kf1 Nh6 Qe1 Rg8 Qd1 Kh8 g7+ Kh7 Rb1 Rgd8 g8R Rg3 Rg6 Rdd3 Rb6 N6f5 Qe1 Na4 Ba3 Nb2 Rd1 c1Q Bb4 Qc4 Bc3 Qce4 Bd4 Qg4 Qe4 Rc3 Qb1 Rcd3 Rg1 h1Q Be3 h2 Bh3 Qhe4 Bd4 h1R Bf2 Rh2 Rh1 Rhg2 Bd4 Rc3 Bf2 Rgd3 Bg1 Q5d5 Qh2 Qed4 Qbc7 Rgg3 Rf8 Rde3 Rbb8 Q4e5 Qca3 Bg6 Rb5 Ng7 Rf3 Ngf5 Q3b4 Re4 Ba7 Rc1 Rc3 Bf7 Rb6 Ree3 Qbc5 Rd3
3QB3/2b2PNn/1B1Nbp1b/Krr1B1r1/1RNq4/BQ1Rnk2/3qN3/2N1n3 w - - 0 1 illegal: No possible last move
1nN2B2/5pBP/1N4qq/b1K3n1/N2RB2r/r1QN1b2/1QB1Nr1k/nb1R4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 g5 d4+ Kf6 h6 a5 d6 c5 e5+ Kf5 d5 c4 b6 c3 d7 f3 Ke3 Kg4 Kd4 Kg3 h5 f2 b7 c2 b5 g4 b6 a4 e6 a3 h7 a2 h6 Be7 d6 Bg5 e7 Qc7 e8B Qc6 d8N Qd7 Nc6 Bf6+ Ne5 Be7 Kc5 Qa4 Bc6 Ra6 Be4 Nf6 Qe1 Qe8 Nc3 Bf5 Nd3 Bd8 d7 Be6 Ba3 c1N Na4 Bf5 Rh4 Qe6 Qc3 Bg6 Bh3 f1B Ne2+ Kh2 Rb1 g3 Bhf5+ Bh3 Rg4 Bc7 d8N a1R Nc6 g2 Ne7 Ra2 Nc8 Ra7 Rf4 Bg4 Bb4 Bf3 Rg4 Rf8 h8B Nh7 Bg7 Ng5 h7 Rd8 Rf4 Rd4 Ra1 g1Q Ba3 Nc6 b8N Ra6 b7 Ba5 Nd7 Nb8 Ndb6 Nb3+ Kb5 Qg4 Rd1 Na1 Baf8 Qh5 Kc5 Qh6 Ng3 Rf2 Ne2 Nc6 b8Q Qf6 Qe5 Nb8 Be6 Bf5 Bb3 Qfg6 Bc2 Ra7 Nab2 Ra4 Qed4 Ra3 N2a4 Rd7 Qdb4 Rd4 Qcb2 Be6 Rg4 Ba2 Q4c3 Bb1 Ba8 Rd6 Rd4 Rf6 Bd5 Rf4 Be4 Rh4
1k1b1Rb1/pBqB2Q1/R1q3r1/8/1nQrB1nQ/PB2r2N/3qB3/N2K2Qb w - - 0 1 illegal: No possible last move, all moves rejected
r1B1r2k/b3BrqN/1NRn3R/rb4b1/1Br1B3/1QQ5/R1PpKR2/3B1n2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 b4 Kf7 f4 Kg7 g4 d5 b6 h5 g6 a5 g5 e5 b7 e4 b5 d3 b6 d4 Ra2 h4 Qd2 e3 Nh3 e2 Ba3 a4 Bb4 a3 Qc3 Nd7 b8R Bd6 b7 Ne5 Nd2 Qe7 Nc4 Bd7 Rc8 Bb5 b8Q Nh6 Nb6 Nhf7 Rc6 Re8 f6+ Kh8 f5 d2+ Kf2 e1R Be2 d3 Bd1 Ng4+ Kf3 Re5 g7+ Kg8 Qb7 Bb8 Rh2 Kh7 g8B+ Kh8 g6 Ba7 Ng5 h3 Bh7 Nd6 f7 Ne3 f8B Nf1 f6 Qg7 f7 Rd5 Rf2 h2 Be7 h1R Rh2 Rc5 Rh6 Rh4 Kf2 Rhc4 Kf3 Rg8 f8R Rd5 Rf7 Rge8 Rf4 Nh2+ Ke3 Rf5 Rf2 Rf7 Bf3 d1R Qb8 Rg1 Bd1 d2 Ke2 Nc8 Qbg3 Nd6 Qb3 Nf1 Qgc3 Rh1 Ra1 a2 Nd7 Rh5 Nb6 Qd4 Bg8+ Rh7 Bd5 Ba4 Be4 Qe5 Ne6 Qd4 Nf8 Ra5 g7+ Kg8 Rb1 Bb5 Rb2 Qe5 Qe3 a1B Ra2 Qg3 Qed3 Bf6 Qdc3 Kf7 g8B+ Kg7 Be6 Kh8 Bc8 Qg6 Qg3 Bg5 Qgc3+ Qf6 Rg6 Rf7 Nh7 Qe5 Rh6 Qg7
q1nB2bB/Qr2r1R1/1N2Bk1B/1Qb2N2/4nBb1/2P1rN2/2pb2N1/1R2b2K w - - 0 1 illegal: No proof kernel
b4Q1R/2N1N1b1/n1bB4/kr2nBNB/1bq1N2Q/pBN1R3/1n4bP/1r2K3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 d5 c4 Kd7 e4 Kc7 b6+ Kc6 b5+ Kc5 h6 Kb4 b7 f5 b6 g5 c5 a5 h7 a4 e6 g4 e5 f4 c6 g3 c7 f3 e7 d3 e8B g2 e6 d4 e7 Bd7 c8B Nf6 Nd2 Qc7 Bh5 Ka5 e8N Ng4 Ba3 Ne5 Bd6 Bc6 Ne4 Bg7 Bf5 Na6 Ne2 g1B N2c3 Rb8 Qc2 Qf7 Nc7 Qc4 Qf2 a3 Rd1 Rhc8 h8N Rf8 Qh4 f2+ Kd2 Rfe8 Nf7 Rf8 B1h3 f1B Nfg5 Bg2 Ke1 Rf6 Be6 Rf5 Bg8 Be3 Rf1 Bc1 Rf3 Bf4 Re3 d2+ Kf2 d3 B3g4 Qd4 Bb3 Qc4 Rb1 d1B Ke1 Bdf3 Bh3 Rd8 b8Q Ba8 b7 d2+ Kf2 d1N+ Ke1 Rh8 Qf8 Rh6 b8N Rg6 Be7 Rb6 Bd6 Rb5 B3g4 Rf7 Bf5 Bc6 N7d5 Rfb7 Ne7 R7b6 Nd7 Ba8 Ndf6 Rb8 Ne8 R8b7 Ng3 Bc6 Ng3e4 R7b6 Nc7 Rb8 Rh3 Be3 Rb2 Bc5 Re2 R8b6 Ree3 Rb7 Ba2 Rb1 Bb3 Bb4 Nf3 Rb8 Nfg5 Rb5 Qg3 Bcb7 Bhg4 Rc5 Rh8 Rb5 Bh5 Bc6 Qh4 Nb2+
2bbB1b1/NbNN3k/1RrR1B2/3R1r1N/4bnp1/3rn1K1/qQ3N1P/1R2Q3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 c4 g5 e4 d5 b4 f5 h6 Kf7 h7 Kg6 e6 d3 c5 a4 c6 g4 e7 a3 e8R d4 b6 f4 b5 f3 c7 a2 b7 d2 e5 d3 e6 Ba3 b6 Ne7 Nc3 Nd7 b8R Nf5 b7 Ne3 e7 Rf8 h8Q Nb6 Rb1 a1R Nge2 Nbd5 Bb2 Nf4 Ne4 Qd5 Rd8 Ra6 e8N Qa2 N2g3 Rc6 Rd5 Be7 Bf6 Bd8 Qe1 d1B+ Be2 d2 Bb5 Bc2 Nh5 d1B Kg3 Bd3 Nf2 Be4 Rf1 Bb3 Rd6 Bcf5 c8N Bg8 Na7 Bc8 Nc7 Rf7 Ba4 Rf8 Rb5 Rd1 Rbd5 Rd3 Rg1 Ra6 Be8+ Rf7 Ra8 Rc6 b8N Bb7 Nd7 Bc8 Nd1 f2 Rb8 f1B Nf2 Bfg2 Rb6 Bh7 Qf8 Bg8 Qe7 Kh6 Qe5 Kh7 Qb2 Bgf3 Qee2 Rf8 Rb1 Rf7 Qe1 Bg2 Be5 Rf5 Bf6 Bef3 Ne5 Rc1 Rd4 Bfb7 R4d5 Rc6 Nd7 Be4
2N1B1k1/rB1bB1B1/6pn/n1q3r1/r2nPNR1/B1r2Q2/1R3Q1b/1N1KN1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 a5 b4 f5 d4 Kf7 e4 c5 e6+ Kg6 b6 Kh7 e7 g3 e8B a4 d6 g2 b7 g6 d5 c4 h5 c3 d7 c2 b5 a3 b6 f4 h6 a2 d6 f3 Ba6 Be7 Rh2 Bg5 Ba3 Qf6 d8N c1N d7 Qe5 Ne6 Qb2 d8B Qd4 Bde7 Bf6 Nf4 Nc6 b8Q Na5 b7 Ncb3 Qa7 Bd7 b8N Be5 Bb7 Qc5 Nc6 f2+ Ke2 f1R Nf3 g1R Ne1 Rc8 Rh4 Ra8 Rg4 Nd4+ Kd2 Rg3 Qf3 Rfg1 Kd1 Rh3 Qb6 Ra7 Qb2 Rh5 Qh2 Rg5 Qhf2 Ra8 Na7 Bc7 Ne2 Bh2 Nc8 Ra7 Nf4 Qd5 Nc3 Qc5 Rc1 a1R Rb1 Ra2 Rb5 Rc2 Nb1 Rc3 Rb3 Nf6 Rb2 Kg8 Rg3 Ng4 h7+ Kg7 Rg2 Nh6 Rg4 Rf8 h8B+ Kg8 Bg7 Rf6 Ne2 Rb6 Nf4 Rb4 Nh5 Rbc4 Nf4 Ra4
bN1R4/n6k/1QRr1p2/2bR2K1/BRN2R1r/Q1b2r1P/N1nB1N1r/2q4r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 c5 e4 g5 b4 a4 d4 c4 h6 c3 h7 c2 e5 a3 d6 a2 e6 Qc7 Kg4 f3 d7+ Ke7 d8R Kf6 b6 Kg7 d5 f2 b7 Qd7 b5 Ra3 d6 Qe8 d7 Bc5 b6 Ra5 e7 Rb5 Qd6 Rb2 Nh3 Na6 b8R Nb4 Nc3 Bb7 Bd2 c1R Bb5 f1R Nf2 Nc2 h3 Ba8 b7 Rcd1 Rc1 a1B Qb6 Qf8 e8Q Ne7 Ba4 Nc6 Na2 Na7 Qe3 Qe8 Qf3 Qe1 Qa3 Qe3 Kf5 g4 Rg1 Qe1 Kg5 g3 Rh1 g2 Rh2 Rf8 h8N Kh7 Ng6 Rh8 Ne5 g1R+ Rg2 Rh1 Rg4 Qe3+ Rf4 Qc3 Nc4 Qe3 Nd3 Rf3 Nf2 Qc3 Rbc8 Qe3 b8N Qc3 Rb1 Qe3 Ba5 Rd6 Rc6 Qe1 Bd2 Qc1 Nb4 Ra2 Rb3 Bc3 Rb2 Ra1 Na2 Rh2 Rb5 Qb2 Rb4 Rah1 Re8 Qc1 d8R Kg7 Re1 Rh4 Re5 Kh7 Rd5 f6+
2N1b3/6BR/1RNr1p2/1Q2bRP1/3Rr2Q/1r1nr1BB/q1k1n2K/B1rRb3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 b4 Kd6 d4 a5 e4 c5 g4 h5 Kg2 f3+ Kh2 f2 g6 c4 b6 c3 g5 h4 e5+ Kd7 d6 Kc6 b5+ Kd5 d7 Ke4 g7 c2 b7 h3 d5 a4 e6 a3 e7 a2 e8Q+ Ne7 g8R Ra3 b6 Rb3 d6 Rd3 Bb2 c1R Na3 Rh6 Nc4 Re3 Ne2 Nc6 b8B Nd4 b7 Qa5 d8B Bd7 Qe1 Kd3 Nb6 Nec6 Nc8 Ne5 Bf6 Kc2 Bg7 Nd3 Rb1 Bc6 d7 a1B d8R Qa2 Bg3 Bb4 b8R Rd6 Rb6 f6 Rh8 Bc3 Rh7 Bb5 Qe5 Be8 Qb5 Bd2 Bg2 f1R Rg1 Rf4 Rf1 Rfe4 Rf5 Bb4 Qf2 Bc3 Qf4 Be1 Qh4 Ne6 Bc3 Nef4 Rb4 Rb1 Rd4 Rb3 Bf1 Bb2 Bg2 Bc1 Ba1 Bb2 Rb4 Be5 Nd4+ Kc1 Ra4 Ne2 Nc6 Kb1 Rd4 Kc2 Kh1 h2 Bh3 Bb4 Kg2 h1R Rd7 Rc1 Kh2 Be1 Rd8 Nb2 Rd1 Nd3 Rd7 Re6 Rd4 Rd6
1B3b2/bnPQNRQQ/Q2bKr2/Q4n1n/RbrqBkb1/5N2/2R4p/5R2 w - - 0 1 illegal: No possible last move, all moves rejected
1R3b2/1Bn2K1k/1n1N4/1rRn3B/2B1NQ1R/Bp1n1P2/q1brQ3/r2bR1B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 Kg7 Kf4 h5 Ke5 b5 g4 c5 a4 c4 d4 c3 a5 b3 g6 c2 a6 h4 d6 e6 a7 b4 d7 h3 g5 b2 d5 h2 d6 b3 f3 Bb7 Qe2 Rh7 f6+ Kh8 f7 Nh6 Nh3 Qa5+ Kf6 e5 d8R e4 d7 e3 Nc3 b1B Ba3 c1N Nf2 Bf5 Rc8 Bc2 d8B Bbe4 Bb6 Na2 Rc5 Nf5 Re1 Nd6 Nb5 Nc4 Nd6 Rh5 g7+ Kh7 g8R Bd1 Ke6 Bd3 Nfe4 Na6 Kf6 Rc8 a8B B3c2 Bb7 N2b4 Ke6 Nd5 g6+ Kh6 g7 Kh7 Bh3 Rd8 Bg4 Rf5 Ba7 Ncb6 Bh5 Rg5 Bc1 Qa2 Ba3 Be7 f8Q Nac7+ Kf7 Rd7 Rhg1 h1R Rg4 Rg1 Rh4 Rd8 Qh2 e2 Qe8 Bf8 Qf4 R1g2 Qb5 Ra8 Qa6 Be7 Rb8 Bf8 Rf1 e1N Qe2 Nd3 Re1 Rh2 g8B+ Kh8 Bh7 Rf2 Bf5 Rh2 Be6 Kh7 Qf1 Rd2 Qe2 N5b4 Bc4 Re5 Rc6 Rb5 Rc5 N4d5 Rc6 Na4 Bg1 Nab6 Rc5 Qb1 Bb2 Ra1 Ba3 Qa2
1K4BN/Q2Nn2B/qR1r1B1N/1n1PNN2/4k1rb/B2rn1Q1/bR3pb1/6n1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 h4 a5 d4 g5 b4 c4 h6 a4 b6 g4 b7 g3 h7 a3 b5 c3 h5 a2 b6 f3 h6 g2 d6 c2 Kd5 Kf5 e4+ Kf6 d7 f2 e5+ Kf5 e6 f6 e7 Ra3 Kd6 Nc6 b8Q Rf3 b7 Qb6 d8B Bd7 d5 Qa7 Kc7 Be8 Qd3+ Ke5 Rh2 f5 Na3 f4 Ne2 g1N Nd4 Bf7 e8B Bg6 Rb1 a1N Nf5 Nge7 Rb6 Qa6 Bf7 Nd4 Qa7 Rg8 h8N Nb5+ Kb8 Rg3 h7 f3 Qc3+ Ke4 Nc4 Rh3 Be2 f1B Ne5 Bg2 Ba3 c1R Bc4 Rg7 Bg8 Nc2 Nhf7 Ne3 h8N Rd1 Bf1 Rd3 N7h6 Bh7 Qe1 Rg4 Qg3 Bg7 Be2 Bf6 Bd1 Rh5 Bc2 Bh4 Bb1 Rhg5 Bc2 Rg6 Bb1 Bh1 Rb2 f2 Bc2 Rd6 Bb1 Nc8 Bf6 Bg6 Ka8 Bf3 b8N Ne7 Nbd7 Bg2 Kb8 Be8 Nf3 Nc7 Ba2 Rd1 N5d4 Kd3 Nf8 Ba4 Nd7 Nb5 Bb3 Rd2 Bd1 Bb3 Bc2+ Kc4 Bf5 Ba2 Bfh7 Rd1 Ndf5 Kd3 Nfe5+ Ke4 Bg6 Rd2 B6h7 Rd3
2N1BN2/8/4bb1p/nnrNrq1B/P2r3k/r5R1/1bR1N1n1/BK1QBQ1B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 Kd2 b5 Kc2 c5 f4 e5 g4 h6 a4 e4 g6+ Kf6 d6 c4 g5+ Kg7 d5 c3 d7 e3 d6 e2 Bg2 e1R Ne2 Rf1 Ra3 Ra7 Rh2 Ne7 Bb2 Ra5 Bh1 Nd5 Ba1 Qf6 d8N Be7 d7 Re8 Nb7 Nc6 d8B Be6 Nd6 Rf3 Nc8 b3+ Kc1 c2 Nbc3 Ne3 Nd5 b4 Rf2 Ra7 Ba5 Rc7 Rg2 Rd8 Rg3 Qe5 Ra2 Ng2 Rb2 Bf6 Ra2 Kg8 g7 Kf7 g8B+ Kg7 g6 b2+ Kd2 b1N+ Kc1 b3 Bf7 Re7 Be1 Na5 Be8 Na3 Rb2 Nb5 Ra2 Kg8 g7 Kh7 Bh5 Rc3 Kb2 c1B+ Kb1 Rc4 Rc2 b2 Be8 Rc5 g8B+ Kh8 Bgf7 Kh7 Bh5 Rd6 Ne3 Rd3 Nd5 Ra3 Rg4 Rd7 Rg3 Rd6 Ndb6 Rd4 Nd5 Be7 f6 Qf5 f7 Bf6 Bg4 Kg6 Bf3+ Qg4 f5+ Kh5 f8Q+ Kh4 Qf7 Bg7 f6 Qf5 Qf8 Bh8 f7 Bf6 Bg4 Nc7 Nec3 Qh5 Rf2 Nb5 Kc2 Bh8 Rd2 Qe5 Bh5 Qf6 Ne3 Re5 Ne2 b1R Nd5 Qf4 Bg4 Rbb4 Bh5 Rbc4+ Kb1 Bb2 Rc2 Qf3 Qe7+ Qf6 f8N Rc5 Qf7 Qf3 Qf5 Bf6 Qf4+ Qg4 Qf1 Qf5
nR2B3/rBRbPN1Q/3r3b/5r2/n1p1n1Q1/N3Qb2/QK1B2r1/1QB3qk w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 Kc3 c5 b4 h5 g4 f5 g6 c4 b6 h4 b7 f3 g7 a4 g5 a3 b5 f4 g6 h3 e5+ Kd7 d6 Ke6 d5+ Kf5 b6 Ke4 d7 h2 e6 f2 d6 f3 e7 a2 Bg2 f1N Na3 Rh4 Nh3 Ne3 Kb2 Nh6 g8Q Ra6 g7 Nhf5 Qh7 Nd5 g8B Nc7 Bf7 Na8 Be8 Rg4 Rb1 Qc7 d8Q a1R d7 Qc5 Qc7 Ra7 d8B Bd7 Qg3 Na6 b8Q Qg1 b7 Bh6 Ba5 Nc5 Bad2 Ra6 Qc8 Rd6 b8Q Rg5 Qbb3 Na4+ Kc2 Rg7 Qa2 Rg4 Rb7 Rg8 Bf1 f2 Rc7 Rg7 Be2 f1R Qgb3 Rg2 Ng5+ Kd5 Qe1 Ng3 Qe3 Rf5 Nf7 Ne4 Bh5 Qf2 Rf1 h1B Bf3 Qg1 Qd1 Rb1 Qb8 Rb7 Re1 Ra7 Qbb1 Re2 Bg2 Ref2 Qg4 Re2 Bh3 Bf3 Bg2 Rf2 Bh1 Rg2 Re2 Rg3 Rh2 Rg2 Rh5 Rb6 Rg5 Rd6 Rg8 Nf6 Qh8 Rg3 Qbb6 Bg2 Qh7 Ra5 Qbb1 Ra7 Qh4 Rg7 Nh8 Rg4 Bg6 Rg3 Rb8 Rg4 Qeb6 Ke4 Be8 Kf3 Nf7 Rgg5 Qe4+ Kg3 Q6b3+ Kh2 Qbe3 Rg3 Q4d4 Bd5 Bf3 Rg2 Qg4 Kh1 Be4 B5e6 Bb7 Bd5 Nd8 Bf3 Nf7 Nc5 Kc3 Nfe4+ Kb2 Na4+
nKnQ1bb1/3Q3R/2nR4/qB4BQ/2p2Rr1/P1N2q2/3r1RRn/kN2Q1n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 h4 g5 f4 c6 h6 b3 d4+ Kb4 d6 b2 h5 c5 d7 g4 h7 g3 h6 g2 d5 Ra4 f6 Qa5 d8R Be6 Ne2 g1N d6 Bc4 Qd5 Nc6+ Ke6 Bb3 Kd7 e5 Kc8 e4 f7 e3 Nec3 e2 f5 e1N d7 Nef3 f6 Nh2 Bg5 Nge7+ Kb7 Rg8 h8Q Nc8 h7 Bc4 a3+ Kb3 Qd6 b4 Ra2 Kc2 Qg7 b3 h8Q Be6 Qh4 Rd4 Qgh6 Rd2 Bb5 c4 Qe1 Rg6 Qh5 Rg7 Bh6 Rg4 Bg5 Bd5 Re8 Be6 d8Q Bd5 Q6d7 Be6 Nd1 Bd5 Re6 Kc1 Nbc3 b1Q Rd6 Qf5 Nb1 b2 Ndc3+ Kc2 Qee7 Qf3 Qe1 Bh6 f8R Bg8 Rf7 Bf8 Rh7 Nh3 Rf1 Ng1 f7 Kb3 Rf2 Kc2 Ne4 Kb3 Nbc3 b1N Rg2 Rd4 Raf2 Rd2 Rg6 Kb2 Rd6 Rc2 Nd2 Ka1 Nd1 Nc3 Nb1 Na4 Ndc3 Nab6 Kc7 Be7 f8R Rd2 Rf4 Bf8 Kb7 Ne5+ Kc7 Na8+ Kb8 Nc6+
NNrb2r1/3NQ1nk/1RB2qRr/r4p1N/nN3rq1/2P1B3/3B2B1/3Q1bK1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 e4 Kf7 b4 g5 h4 Kg7 b6 a5 c3 d5 h6+ Kg6 b5 g4 h5+ Kh7 e6 a4 e7 d3 e8B d2 e5 d4 b7 d3 e6 a3 b6 a2 e7 Qc7 Nh3 g3+ Kg1 g2 Nf4 Na6 b8N Bb7 Na3 Qe5 Bc6 Ra7 e8N Be7 Nd7 Ra8 Rb1 a1R Nc2 Qd6 Nb4 Ra5 Nc7 Rc8 Na8 Nc5 Rh2 Ba6 b7 Bh4 b8N Bd8 Rh3 Qg6 Rg3 Qf6 Rg6 Na4 Rb2 Qf8 Rb3 Nf6 Rb1 Ne8 Rb3 Ng7 Rb1 Kg8 h7+ Kf7 h6 Bb5 Qh5 d1Q Bd2 Qg4 Rb3 Rg8 h8Q Qd6 h7 Qf6 Qh1 Bc4 Nh5 Bb5 Kh2 g1R Bfg2 Rf1 Rb2 Rf3 Qd1 Rf4 Kg1 Bc4 Bc1 d2 Rb1 Re8 Rb2 Bf1 Qf8+ Ke6 Qc5 Kf7 h8B Kg8 Qe7 Kh7 Rb1 Rg8 Rb3 Qf7 Rb1 Ne8 Bg7 Qf6 Bh6+ Ng7 Rb3 Rf3 Be3 Rf4 Qc2 d1R Bcd2 Re1 Qd1 Re2 Nd3 Ref2 Rb6 R2f3 Nb4 Rh3 Ng3 Rh6 Nh5 Bc4 Na2 Ba6 Nb4 Bf1
Nn1bNB1q/2R1Q2R/1Kb5/qbnp4/2Qb2PQ/kr1Q1b1B/1r5B/5B1Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Kc4 e5 b4 Ke7 Kc5 d3 c4 d2 f4 e4 b6 h4 g6 a4 g7 a3 b7 a2 b5 h3 b6 h2 Nc3 e3 Nb5 e2 f6+ Ke6+ Nd6 e1B f5+ Ke5 f7 Ra6 f6 Nc6 b8Q Na7 b7 Be7 f8Q Rb6 f7 Rh6 Ne2 Bg3 Nc3 Rh3 Na4 Rb1 Qa8 Bg5 b8Q Nf6 g8Q Ba6 Nb6 Nc6 Ne8+ Ke4 Ba3 Rb2 Qe7+ Be5 f8B Bb5 Rc1 a1Q g3 Qc7 Qbd8 Ke3 Qh5 d1B Qh4 Kd2 Qb7 Bg4 Na8 Nb8+ Qc6 Qc8 Kb6 Bf3 c5 Bd4 Qc4 Ne4 Rc2+ Kd1 Bb4 d6 Bd2 Qf5 Bf4 Qe5 Q6d5 Qh8 Qdb7 Bdf6 c6 Nc5 c7 Bd4 c8B Qa3 Rg1 h1B Be5 Bhg2 Rh1 Bfc6 Qdd7 Bgf3 Qf5 Qb4 Qfd3+ Qd2 g4 Bf6 Bh2 Rg3 Bf5 d5 Be4 Rh3 Qeh7 Bd8+ Qbc7 Be2 Beg2 Re3 Bh3 Bf3 Qdg6 Ra3 Qgd3 Rab3 Rc3 Rc2 Qhe4 Kc1 Qee1+ Kb2 Qee4 B8f6 Qce7 Ka3 Q7e6 Be3 Bf4 Be2 Qe1 Bb7 Qa4+ Kb2 Bhg2 Bed4 Rh7 Nca6+ Rc5 Be7 Qac4 Ka3 Bh2 Rb2 Bh3 Qb4 Qg2 Bf3 Qh4 Qe1 Qh1 Bd8+ Ka7 Qa5 Qee3 B7c6 Qee7 Bd7 Kb7 Qb4 Rc7 Nc5+ Ka7 Bdc6 Kb6 Qa5+
2k1qR1r/5B2/qQ1rnR1r/2P2Qp1/1Q3BB1/1B1K4/r1NQB1N1/1b3rbn w - - 0 1 illegal: No possible last move
5BRb/1BN1QRNq/1BK1P2R/q4Rr1/3q1Q2/nkpq1R2/4q2n/B2r3b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kc4 b4 g5 d4 a5 d6 c5 d5 a4 d7 a3 b6 f3 d6 f6 b5 f2 h6 g4 h5 g3 h7 g2 b7 a2 b6 Nc6 b8Q Ra5 b7 Bg7 h6 Nb4 Na3+ Kc3 Nh3 g1Q Ng5 c4 Rh3+ Qg3 Qe1+ Kb3 Bg2 f1Q Nb5 Nc6 Kd5 f5 e4 f4 e5 f3 Ba3 f2 Ne6 Qc3 Rf3 Bf8 Ng7 Qc7 d8B Na7 d7 Bd6 e6 Be5 Bf8 Bf6 Qc1 Qe2 Qg5 Bd4 Rf1 a1Q Qe7 Qh2 Qf4 Nf6+ Kd6 Ng4 b8R Bb7 Nc7 Rg5 Rc8 Rg8 h8B Qa5 h7 Bf6 Bh1 Bd5 Ra8 Nb5+ Kc5 Qh6 Ra7 Na3+ Kd6 Be4 Bg2 Rd5+ Kc6 Nh2 Bh1 Qb4 Ra5 Rd1+ Rd5 Qa5 Bg2 Bc2 Rf5 Be4+ Nd5 Bb1 Re3 Qa4+ Kb6 Qeh5 Ne8 Nc2 Qg3 Bg7 Qeh4 Bf6 Rfe5 Rd2 Bhg7 Ng4 h8R Q6g6 Rh6 Rd1 Kc5 Qf7 Bb6 Na3 Ndc7 Nh2 Bb7 Qa5+ Kc6 Be4+ Rd5 Bh1 Qgg4 Qd3 Rg3 Bg5 Ba1 c3 Qf3 Be7 Rg7 Qd4 Rf5 Bd8 Rgh7 Rg2 Qff4 Bf6 Rg7 Qfg6 Rg8 Be5 d8R Qh7 Rd7 Bh8 Ng7 Qg4 Rdf7 Qd3 Qf3 Qgd4 Qe7 Rg3 Rg1 Rg6 Rg3 f1Q Rgh3 Rg2 Qf4 Qfe2 Rf3 Rg5
bQQ5/Nq1BPRB1/1bn3B1/2pr1N1n/1RB1bb1B/8/qR2bRK1/1r2k3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 Kd4 g6 f5 e5 a5 g5 c5 b6 h5 b7 a4 d6 f3 e6 h4 b5 a3 g7 h3 b6 h2 g6 f4 d7 a2 Bb2+ Ke4 d4 Ne7 g8B Rh6 g7 Nbc6 b8R Ra7 b7 Ne5 d5 N5c6 d6 Qa5 d8B Nd5 d7 Be7 Na3 Rh5 Bf7 Nf6 g8B Rd5 Qb3 Nh5 Ne2 Bd6 Rc1 a1B Nb5 Qa2 Bh3 Bc7 Rcf1 Bb6 Bg7 Be5 Bh4 Bec7 Qb2 Kd3 d8Q Bd6 e7 Bf5 Rhg1 h1B Bg6 Be4 Qc8 Be5 Qb3+ Kd2 Ng3 Ra5 Na7 Rb5 Rg2 Bd6 Qc4 Rb1 Qb5 Be5 Kg1+ f2+ Kh2 f3 Bd7 Bf4 Kh3 Rd3 Bc4 Rd5 Nf5 Bbc7 Rc1 Bb6 Rc2+ Kd1 Rb2 f1Q Qb4 Qd3 Rgf2 Qdb3 Qb5 Ke1 Ra8 Qba4 b8R Qa6 Qb3 Bbc7 Rb4 Bb6 Qh8 Qb7 Rf8 Bh2 Rf7 Bf4 Rh2+ f2 Qc8 Ng3 Rg2 f1B Kh2 Be2 Rf2 Nh5+ Qg3 Bc1 Qgb8 Bf4+ Ng3 Rf5 Bd3 B4f3 Ra4 Na5 Rc2 Qc7 Rb4 Ba8 Rcb2 Bhe4 Bc4 Rd5 Kh3 Qb7 Nf5 Bc2 Kg2 Nc6 Rf6 Bcd3 Rf7 Be4+
B2N1rnq/1bP1b2b/3bp1R1/2Bn4/6rN/KN2B1k1/1QB1qb2/Q2BR1N1 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Ke6 Kb4 Ke5 c4 h5 f4+ Kf5 g4+ Ke6 g6 a5+ Ka3 d5 b4 h4 g5 Kf5 g7 a4 b6 e3 b7 e6 c6 h3 c7 d4 c5 e2 b5 Kg4 f5 d3 b6 h2 f6 d2 g6 Nd7 b8Q Ra5 b7 Ra6 f7 Be7 f8B Bh4 c6 Ne7 g8B Nc5 g7 Bd7 c8B Nd5 c7 Bb5 Bh7 Ne4 g8N Kg3 Bc5 e1B Nh6 Rf8 Be2 Nef6 Bc2 Ng8 Ra2 Be7 Nf5+ Kg2 Ra1 Bd3 Nh4+ Kg3 Bd7 Ra7 Bc6 Bf2 Qf1 d1Q Be3 Ra8 Nd2 Bh7 Nb3 Ra7 Bg4 Qe2 Ra2 Bd6 Qa1 Qf6 Rb2 Qh8 Rb1 Ra6 Re1 Rb6 Bh5 Rb4 Bg4 Qb5 Bgd1 Rg4 Qc8 Be7 b8N Qe2 Ba8 Bd6 Nc6 Be7 Ka2 a3 Qb7 Bd6 Nd8 Be7 Kb1 a2+ Kc1 Bd6 Qb4 Be7 Qbc3 Bd6 Kb2 Be7 Ka3 Bd6 Qb1 a1B Qf6 Bae5 Qb2 Be7 Qa1 Bf4 Qfb2 Bfd6 Ngf3 Kh3 Rhg1 h1B Rg2 Rd4 Rg5 Rg4 Ng1+ Kg3 Rg6 Nc3 Nf7 Bb7 Nd8 Nd5
2B2kb1/2p2q2/R3bN2/2RN3N/PRRb1KRB/6r1/1N2QQbb/n3qn1r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 e5 Ke3 g5 d4 b5 h4 b3 f4 g4 h6 e4 h7 b2 f6 b4 f5 b3 h5 g3 f7+ Ke7 d6+ Kf6 d5 Kg7 h6+ Kf6 d7 Ke7 f6+ Kd6 Nf3 g2 Rg1 Ne7 Ne1 Ng8 Ba6 Nc6 Qe2 Ne5 Kf4 e3 Nc3 b1B Nd3 Bg7 f8N b2 f7 Ke7 d6+ Kf6 a4 Qe7 d8N Be6 d7 Qa3 Bc8 Bba2 Rb1 Ke7 Bd2 Ra6 Be1 Qb3 Bh4+ Nf6 Rbc1 b1B Nb2 Rg8 h8R Nc4 Nh7 Nd2 f8R Nf1 Nd5+ Kd6 Rf7 Ne4 Rc4 Ned2 Nhf6 Be4 h7 Bf3 Qf2 e2 Re7 e1Q Qe2 Beg4 Ree4 Be6 Rc5 Ra5 Rb4 Be4 Qf2 Qc4 Qe2 Nb3 Qf2 Na1 Qe2 Re8 Rg8 Bh8 Rg6 Rg8 Qf2 Bg7 h8Q Ra6 Qh5 Bb3 Ne3 Ke7 Ned5+ Kf8 Qhe2 Bh8 Rh6 Rg3 Rg6 Bg7 Rg4 Bg8 Rh1 g1B Ne6+ Kf7 d8R Bh2 Rd6 Bg2+ Kg5 Ba2 Nef4 Kf8 N4h5 Qb3 Kf4 Qc4+ Ne4 Bd4 Nef6 Ra5 Ra6 Rb5 Nc3 Qf7 Rg1 Be6 Rcc4 Bf5 Rg5 Be6 Rgc5 Rb6 Nd5 Rc6 Rb8 Rb6 Rb7 Rbb3 Rbb5 Rbc3 Rbb4 Rc1 Rb7 Bgh3 Qe5 Rg7+ Qg3 Qf2+ Ke4 Ne3 Rbb4 Rf1 Qg2 Qe1 Qf2 Rg5 Rg3 Rh1 Kf4 Nf1 Qe4 Bg2 Qee2 Re5 Rca5 Re3 Rac5 Bg1 Rg6 Rg3 Rg4 Bh2
6Nq/r2B3N/2Nn4/B1rBN1Q1/1B1b3b/rRn4K/1p1Q2Pq/kbR2Bb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 f4 h5 Kf2 c5 Kg3 e5 d4 b5 d6 c4 a5 h4+ Kh3 c3 d7 c2 g6+ Kf6 g7 e4 a6 e3 a7 b3 d5 b4 d6 b2 Bd2 c1B Be2 b3 Bc4 e2 Qe1 Nc6 Nf3 Nb4 Qf2 e1B Rh2 Rh7 Ne5 Qc7 d8N Ne7 g8B Bg7 d7 Na2 Bf1 Nc3 Be6 Bb7 Bd5 Nc8 Ndc6 Nd6 Qe2 Rc8 a8B Bf2 Rh1 Bg1 Ra3 Ba6 Be1 Bd3 Nd2 b1R Qd1 b2 Rb3 Ra1 Qh5 Ra3 d8Q+ Qe7 Be6 Bb1 Bd7 Bh8 Qa5 Qf8 Qe2 Rc7 Qc5 Rca7 Qce3 Rh5 Ne4+ Kg7 Qc5 Bce3 Bb7 Bd4 f6+ Kh7 f7 Bf6 f5 Kg7 Kg4 h3 Qd2 Bh4 Nf6 h2 Kh3 Qh8 f8N Rg5 Nf3 Kf7 Ng8 Qe5 f6 Qf4 Qb5 Rc5 Nh7 Kg6 Qbe2 Kf7 Qe5 Kg6 Qg5+ Kf7 Be8+ Ke6 Nfe5 Kd5 f7 Ke4 f8B Kd5 Nd3+ Kc4 Ba8 Ra1 Bd7 R1a2 Rb8 R2a3 Bb7 Kb3 Nde5 Ka2 Ba8 Bge3 Rb3 Ka1 Be7 Bef2 Bd8 Bg1 Ba5 Ka2 Nb4+ Ka1 Bd5 Nf7 Nbc6 Nd6 Bb4 Bde3 Ba5 Ne2 Qb4 Bgf2 Nf8 Bhg3 Bd2 Nc1 Bd3 Na2 Rc1 Bg1 Bf1 Bd4 Qc3 B3f2 Qc2 Bg3 Bdb4 Nc3 Qf2 Qe4 Qff4 h1Q+ Kg4 Qh8 Nh7 Bh4 Kh3 Qf5+ Qfg4 Qf8 Qd2 Qf4 Qg5 Qh2+
1q1R1BBb/q2nnN1Q/2K2B2/3B1R1R/4N1qr/r2kp2B/6P1/r1R1rb1Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Kc4 d5+ Kc5 h5 f4 a4 b4 d3 c4 a3 b6 d2 f6 Ke6 f7 Kf5 b7 Ke4 f5 a2 b5 h4 f6 h3 b6 d4 g6 h2 g7 d3 Nh3 Nd7+ Kc6 e5 b8R Be7 f8B Ra6 f7 Kd4 c5 e4 Bb2+ Kc4 Bf6 e3 Nc3 Nh6 g8B Qe8 Ne4 Nf5 Nhg5 Ra3 b7 Rh4 Qh5 d1R Qh7 Re1 Rc1+ Rc3 Be2 a1R Bf3 d2 Ra8 d1Q b8Q Qd4 Qb1 Ba6 Rd8 Bb5+ Kc7 Qd1 c6 Bd6+ Kb7 Ne7 c7 Be5 c8B Kd4 Nd6 Be2 Bd5 Rca3 Nge4 Bf1 Kc7 Qg4 Kb7 Ng6 Kc6 Qe7 Bh6 Qe8 f8R Qe7 Nf7 Qb4 Rg1 h1Q Bhg7 Qh2 Rh1 Qhf4 Rh3 Qa5 Rh2 Rh6 Rh5 Qa7 Rfe8 Qh2 Bf8 Qhf4 Rf5 Rh4 Re7 Nc5 Rb7 Nd7 Rh5 Qfg3 Rb2 Q3f4 Rf2 Qfg3 Rff5 Qh2 Qb2+ Kd3 Qf2 Bb2 Qg1 Qhb8 Qh1 Nb6 B6e7 Bh8 Bce6 Nd7 Bf6 Qgf4 Re5 Qg3 Bh3 Qg4 Ref5 Ne7+
6b1/R2R4/1Rr2q2/2R1RK2/2BBBb2/Nr2p1PN/1Q1nn1qr/3qBkrQ w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 d6 a5 d5 c5 g6 h5 g7 e3 d7 e5+ Kf5 c4 f4 e2 b6 e1R b7 e4 g3 h4 d6 e3 Na3 a4 Bd3 h3 Be4 h2 Nh3 c3 Bd2 Nf6 g8B Rg1 Bc4 Nc6 Be1 Bh6 b8Q+ Kc5 Qh5 Kd4 b4 c2 b5 c1R b6 Ra7 Qf3 Rb7 Qf1 Rc3 Qg2 Rc7 b7 Rb3 Qa8 Qe7 b8R Ba6 d8B Rc8 Bb1 Ne4 d7 Nd2 Be4 Bb5 Rb6 Qf6+ Kg4 Bg5 f5 Bf4 Be7 Kc3 d8R Nd4 Rd7 Ne2 Bc5 Bc6 Ra2 Bd5 Qb8 Bg8 Qb7 Qd4 f6 Rc6 f7 Qf6 f8R Rh6 Rc8 Rh5 Nc2 a3 Ra1 a2 Na3 Rh7 Re8 Rh5 Re5 Rh6 Rd1 a1Q Rc1+ Kb2 Rc3 Qd1 Bd4 Rh7 Nc2 Kc1 Na3+ Qc2 Qf3 Kd1 Qb8 Rf1 Rg1 h1Q Qg2 Qh2 Qh1 Qd3 Rg2 Rg1 Rf2 Qg2 Ra7 Bh6 Rff5 Qc2 Rd3 Bf4 Rc5 Rh5 Rfe5 Qb1 Ng5 Rh2 Nh3 Nc3 Qb7 Ke2 Qb8 Kf1 Qb7 Qd8 Kf5 Qd1 Rb4 Na4 Ba1 Nc3 Rd7+ Ne2 Bd4 Rd3 Rb2 Rc3 Qb3 Qh4 Qc2 Qh8 Rb6 Rb3 Qb2 Qf6+
3kN2r/r1Nq2n1/2B2RbQ/Nqb3BQ/1q2n3/1pP1RB1b/2B3q1/2NNK3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 d5 h4 g5 a4 e5 f6 b5 f7+ Kd7 f5 b3 h6 e4 c6+ Ke7 h7 e3 h5 g4 f6+ Ke6 h6 b4 c7 Kd7 a5 g3 a6 e2 a7 b2 Nc3 b1B Bg5 d4 Rh3 g2 Ra6 d3 Re3 Bg7 f8Q b3 f7 Qe7 Rf6 Bb7 c8B+ Kc7 Bg4 Qc5 Bf3 Ba2 Qd6+ Kc8 f8N Qd5 Ne6 Nd7 Nc7 Nc5 Qh2 Qd7 Qd2 Qb5 Qh5 Ba6 Nd1 Kd8 c3 Ne4 Qc1 Bc8 Qd2 Bf8 Qc1 Rb8 a8B Ne7 Bc6 Bb1 Qd2 Ra8 Qc1 Rg8 h8N Nf5 h7 Ra7 Ng6 Bc5 h8N Ng7 Ne5 Bh3 Nc4 Rf8 Na5 Qb4 Ng6 Rh8 Ne7 Bc2 Nc8 Bb1 Bg4 Qb5 Nd6 Qb4 Nf3 g1Q Nde8 Qg2 Ng1 Qc4 Nb2 Qf3 Bh4 Nd2 Ree6 Qe3 Bgf3 Qb5 Re4 Qd4 Ree6 Nc4 Qch6 Nd6 Re3 d2+ Kf2 d1Q Bg5 Q1d2 Nd1 Bg6 Bcd5 Qdb4 Bc6 Be6 Bh3 Qdd3 Bf5 e1Q+ Kg2 Bc8 Ne2 Qh1+ Kf2 Qg2+ Ke1 Be6 B5e4 Bh3 Nc1 Qd5 Bb1 Ne4 Bc2 Qd7
3qRr2/1KQ1n3/R1bb1bkr/2Q1n1bN/1Q1RP3/q1BB4/2RN1R1p/1n3Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 Kf7 b4 c5 d4 a5 g4 h5 d6 h4 g6+ Kg7 d7 c4 d5 a4 d6 h3 g5 h2 b6 c3 b7 a3 b5 c2 b6 a2 Nd2 Ra7 Bb2+ Qf6 d8Q c1B d7 Bb4 Bc3 Ra4 Nh3 Bd6 Qc7 Bca3 d8R+ Nd7 b8Q Rb4 b7 Rb1 Qa7 Bac5 b8Q Rh6 Qb4 Be3 Qac5 Ne7 Rg1 Ba6 Rg2 Bb5 Rf2 Rb2 Rc1 a1B Rc2 Ra2 Ra8 Ba4 Ra6 Bc6+ Ne4 Bd2 e3 Ra5 Bd3 Rb5 Qf1 Rb8 Be5 Rf8 Bc3 Kg8 g7 Kf7 g8R Ne5+ Ke2 Bc1 Nd2 Bab2 e4 f3+ Ke3 f4+ Kd4 Qh8 Rg2 f2 g6+ Kf6 g7 f3 Nf4 Kf7 Qe1 f1Q Rf2 Qh3 Nh5 Kg6 Qf1 Qg3 Nc4 Bg5 Nd2 Rf6 Re8 Rf8 Re2 f2 g8R+ Qg7 Rh8 Qf6 Rh7 Nc8 Rd7 Qd8 Qb1 f1N Rf2 Ne7 Qd1 Ne3 Qe2 N3c4 Qf1 Qc8 Rdd8 Na3 Rd7 Nb1 Rdd8 Nf7 Rd7 Qd8 Kc4 Ba8 Kb5 Ne5 Kb6 Bc6 Ka7 Bf6 Kb6 Bc1 Ka7 Bb5 Kb7 Qf3 Nb3 Bcg5 Nd2 Bc6+ Ka7 Qf4 Nc4 Qc1 Nd2 Qa3 Kb6 Ng4 Ka7 Bg3 Rd4 Bd6 Kb6 Ne5 Ka7 Bb5 Kb7 Bc6+
R3qnb1/5NK1/QN2R3/N1B1Q2N/1br1pRbn/3RrP1n/2kbNqB1/8 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Ke4 h5 g4 c5 d4 e5 b4 a5 b6 a4 d6 c4 f3 h3 b7 a3 b5 a2 g5+ Kg7 b6 c3 g6 Kf6 d7 h4 d5 c2 d6 h2 g7 h3 Bg2 Be7 Qe2 Rh7 Be3 c1B Nd2 Ra4+ Nc4 Qe8 d8R Nd7 b8Q Nh6 b7 Ra3 Kd5 e4 Nb6 Bf8 Bf2 Kg5 g8N Kf4 f6 Nf5 f7 Rc3 Rb1 a1Q Rb3 Bd2 Nf6 Qf1 Qa6 Rh6 Bd4 Qf2 Ra3 Rc4 Rc3 Be7 f8R Rh4 Rf7 Nf8 d7+ Bd6 Re7 Rh8 Re5 Bb4 Rb3 Rh5 Bc5 Rh6 Bd6 Rc3 Ne2+ Ke3 Nh5 Rg6 Be7 Rc6 Bd6 Rc4 Bc5+ Kd3 Qc7 Nh7 b8N Kc2 Nc6 Bb7 Nhf4 Re3 Rd3 Bc8 Nh5 Nf8 Re7 Bb7 Ke5 Ba8 Na5 Bd5 Kf6 Bf7 Bf1 Bg8 Rg1 h1B Rg4 Bg2 Rf4 Nh4 Ra8 h2 d8N h1N Nf7 Qg1 Qe5 Bh3 Re6 Bg4 Bg2 Nf2 Kg7 Nh3 Bf1 Qg3 Bg2 Qf2
3Q2Rr/1R1R1bn1/B7/RN1nK2Q/2P4p/2q5/NkBBn1nr/bB1bqR2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 a5 Ke4 h5 g4 e5 f4 d3 b4 d2 b6 d6 b5 h4 g6+ Kf6 g5+ Kg7 b7 a4 b6 a3 Qh5 d1N Ba6 a2 c4 Qe8 Nf3 Qe6 Bd2 Nh6 Nd4 Ne3 Rf1 Nc6 b8R Nd5 Nb5 Nd4 b7 Ne2 N1c3 Qe7 Rad1 a1Q Na2 Be6 Re8 Rd8 b8R Qc3 Rb7 Bf7 Ra1 Qe6 Ree7 Rb8 Rec7 Be7 Rd7 Bf6 Ra7 Rb6 Rab7 Qe8 Nc7 Rb2 Nb5 Kg8 g7 Kh7 g8B+ Kg7 g6 Qe7 Be3 Rd2 Bh7 Rc2 Kf3 e4+ Kf2 Qe8 Bd2 e3+ Kf3 Be5 Ke4 Kf6 g7 Ng3+ Kf3 Qb2 g8B Be6 Nb4 e2 Ra4 Ne3 Bc1 d5 Ra5 d4 Rg7 d3 Na2 d2 Bg6 d1B B8h7 Qa3 Rge7 Ba1 Rec7 Nh1 Ke4 e1N Re7 Rh2 Bd2 N1g2 Rec7 Nd5 Rg7 Nc7 Rg8 Ke7 f6+ Kd7 f5 Kc6 f7 Kc5 f8R Qc3 f6+ Nf5 f7 Nd5 Rg7 Qe7 Rgg8 Ng7 Rd8 Qe8 f8Q+ Qe7 Nc1 Kb4 Na2+ Kb3 Rdd7 Kb2 Qd8 Bf7+ Qe5 Qf6 Qh5 Qf2 Bf5 Qc1 Bfg6 Ng3+ Ke5 Ne2 Bb1 Qe1 Bhe4 Qc2 Bd3 Qb3 Bdc2 Qc3+
n1BB2nk/N1B5/K3nRbB/4b3/2prQNR1/2P5/Qqr3NN/Bqb4b w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 Ke2 Kf7 Kd3 Kg7 Kc4 h5 f4 c5 g4 a5 b4 h3 g5 h4 f6+ Kh7 g6+ Kh6 b6 d5+ Kb5 h2 g7 Kh7 b7 a4 f7 d4 c3 h3 f5 a3 f6 c4 e6 d3 e7 a2 e8Q d2 Bb2 Qc7 Nf3 Qf4 Ne1 Ra7 Qe4+ Bf5 Qa4 d1Q Na3 Qb3 Ng2 Qd6 Rg1 Nd7 b8B h1N Bc7 h2 Bd8 Be7 f8B Bg6 f7 Ngf6 g8N Qd2 Nh6 Qdd1 Ng4 Ra8 Bh6 Qb1 f8N+ Kg8 Be2 Ng3 Ne6 h1B Nef4 Bd6 Nh2 Nb6 Bg4 Be5 Bc8 Ngh5 Qa7 Rh7 Ka6 Ng7 b5 Ne6 Rf1 Kh8 Rg1 Nbd5 b6 Rd7 b7 Ng8 b8B Nb6 Bbc7 Rd4 Nb5 Rb8 Rf1 Na8 Rf3 Q3c2 Rg3 Qd2 Rg4 Qdc1 Qb6 Qcc2 Qa5 Qd2 Na7 Qf2 Bc1 Rb2 Qa3 Rc2 Bb2 Qd1 Rc1 a1B Qa2 Qdg1 Rf1 Qd2 Bc1 Bb2 Rf3 Ba3 Bb2 Qb1 Ba1 Qdc1 Nd5 Qcb2 Rf6 Qb4 Ndf4 Bc1 Rg5 Q4b3 Rg4 Q3b2
1Nb4R/R3BN2/n2NKb1b/N1nB1RPk/QNq1n3/4r2p/b2Q3R/1r1q4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Ke4 h5 f4 a5 g4 c5 b4 c4 d4 c3 g5 c2 f6 Kg6 d6 h3 Kd5 e4 f5+ Kf7 b6 a4 b7 h4 d7 h2 b5 e3 b6 a3 Bc4 e2 Nd2 e1Q Ne4 a2 Nf3 h3 Ba3 c1B Nfd2 Qc7 d8N+ Ke8 f7+ Kd7 f6 Be7 f8R Bb2 f7 Bf6 Nb3 Na6 Be7 Rb8 Nd6 Bc3 Qd2 Qd1 Na5 Bg7 Ndc6 Bh6 Ke5 Nf6 Nb4 Ne4 Bd5 Qc4 Kf5 Rh7 Rh8 Bb2 f8R Rf7+ Ke5 Rf3 Rf5 Re3 Rhf1 h1B R1f2 Bf3 Rh2 Bh5 Qd3 Bf7 Qd2 Ra8 b8Q Bc3 Rb1 a1N b7 Nb3 Ra1 Nbc5 Qa7 Bg8 Nf7 Ke8 b8N Nd7+ Ke6 Qc2 Qb6 Bb2 Qc6 Qd1 Qa4 Bc3 Bd8 Kf8 Be7+ Kg7 Ra3 Kg6 Ra2 Bh7 Nd6 Bg8+ Rf7 Bh7 Nb3 Qc2 Qc6 Ne5+ Nd7 Kh5 Nb5 Nb8 Rff2 Qe2 Bc4 Ng3 d5 Bd4 d6 Qed1 Bd5 Qc4 Ra6 Bb1 Rf5 Ne4 Ra5 Ra7 Ra1 Qcf1 Ra3 Rc7 Ra7 Ba2 Na5 Na6 Qcc2 Rcc3 Qb3 Qc4 Qa4 Bb7 Nb8 Rc1 d7 Rb1 d8N Nd7 Nf7 Bc8 Nbd6 Ba1 Nd3 Bf6 Nb4 Ndc5#
3B1kN1/1R1R2b1/br3nK1/1b1N2P1/nqq1p1BN/1Q1R1rq1/1qN5/2Q2N1R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 Kf3 c5 Kf4 h5 Kg5 e5+ f6 e4 f4 c4 d4 c3 g4 h3 b4 c2 f5 h4 d6 h2 d7+ Kf7 d5 h3 d6 a4 b6 a3 b7 a2 b5 Ra4 b6 Ra6 Be2 Ra3 Nf3 Rh7 Nc3 Ra5 Rb1 a1Q Nd5 Rh6 Nd2 Qa2 Nf1 Nc6 b8N Rc5 b7 Qe7 d8R Nd4 d7 Ra5 Na6 Qea3 b8Q Nb5 Nab4 Ra7 Bb2 Ra4 Qc1 Q3b3 Bd4 Qab2 Bb6 Ra1 Qg3 Qc4 Qb3 Nc3 Bf3 Rg6+ Kh5 Ra6 g5 Ra3 Bg4 Ba6 Bc7 Na4 Bb6 Ne7 Ba5 Kg8 f7+ Kg7 Bc7 Ng8 Ba5 Rb6 f6+ Kh8 Kg6 Bg7 f8N Qcd4 Qf4 c1Q Nh7 Qcc4 Nc2 Qb4 Qc1 Qdc4 Rf8 Bb5 d8R Ba6 Rd7 Bb5 Rg1 h1B Rfd8 Bf3 Rh1 h2 Rf8 Rd6 Bd8 Rb6 Re8 Bg2 Re6 Bh3 f7 Nf6 f8N Kg8 Red6 Bg2 Nc3 Bf3 Rd3 Be2 Nd5 Ba6 Ne6 Bb5 Ned4 Ba6 Nf5 Bb5 Rg1 h1Q Nh4 Qh2 Rh1 Ba6 Nf5 Qg3 Nh4 Ne8+ Nhf6+ Kf8 Qa2 Rc3 Qb3 Bb5 Rd1 Rf3 Rd3 Bc6 Ng8 Nf6 Ra1 Bb5 Ra2 Nc5 Raa7 Na4 Rab7 Ba6 Rc3 Qc6 Re3 Beb5 Rd3 Qcc4
Q1K2nBr/q4rBR/1qbR4/1b1N1Np1/1B1b2kP/2Q2q2/QB2nB2/1Qq5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 d4 a5 b4 f5 e4 c4 d6 a4 h6 a3 d7 a2 Ke6 g6 b6 c3 b5 c2 d5 Ra5 d6 Ra7 h7 Ra6 b7 Ra5 e5 Na6 b8Q Qc7 b6 Rd5 b7 Ra5 Qe1 Nh6 Qa8 Qb6 b8Q Rg8 h8B Kh5 Bc4 g5 Nf3 Ra3 Nc3 Rb3 Nh4 f3 Bb2 c1Q Bg7 f2 Nd5 f1Q Qc3 f4 Nf5 Bb7 d8B f3 Kd7 f2 e6 Nc7 e7 Rh8 e8Q+ Kg4 Qe6 Bc6+ Kc8 Be7 h4 Bf6 d7 Bd4 Rg1+ Qg2 Rd1 f1B Qg8 Qh1 Be7 Ne6 d8B Nf8 Bb4 Qf3 Bde7 Ra3 Bec5 Ra7 Rb1 a1Q Qf7 Bf6 Bf2 Bd4 Rd2 Qaa5 Ra1 Rd7 Ra3 Qac5 Ra7 Rb7 Qg8 Rf7 Rc7 Be2 Qa2 Bf1 Qh7 Qa7 Qa8 Qcb6 Bb3 Bfb5 Rd7 Qg3 Rd6 Qg2 Re2 Qg3 Re7 Qf3 Ng3 Qa1 Ree6 Qf4 Nc7 Nf5 Rh6 Rd7 Bg8 Rf7 Nd5 Qf3 Qg6 Qc1 Rh7 Nh6 Qgb1 Nf5 Nf1 Ng3 Nfe3+ Kh3 Nf5 Ne2 Qba1 Kg4 Q2b1 Nf4 Qaa2 Ne2
1n1bnr1K/3Q3B/qB1rR3/2pNR2R/4Rb1B/q3N1Q1/bnR1P2b/1k1B4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 c5 Kf4 f5 h4 a5 d4 a4 b4 g3 d6 Ke6 d7 Kd5 b6 Kc4 d5 g6 h5 a3 d6 g2 b5 a2 b7 Nc6 b8R Kb4 h6 Ra7 b6 Nge7 Kg5 f4 Kf6 f3 e6 f2 h7 g5 b7 g4 Nc3 g3 Rh4+ Nd4 Nh3 g1N Bg2 f1Q+ Nf4 Qe8 d8B Qc6 d7 Bh6 Bb6 Ndf5 d8R Ra6 Qd7 Kb3 Nd1 Kc2 Nd5 Nf3 Re8 Nd2 Re4 Nc4 Bg5 Nb2 Bh4 Bf4 Bf3 Nd6 Kg7 Rf8 h8R g2 Rh5 g1B Rc1+ Kb3 Bh1 a1B Rc2 Ka2 N1e3 Qh3 Ree5 Qa4 Be4 Nc6 e7 Kb1 Bh7 Bgh2 Ra8 Qe6 b8Q Qa3 Qbc7 Nb8 Ra7 Ra4 Ra6 Rd4 Ra4 Rd3 Rae4 Ba6 Ng2 Bc4 Nge3 Rf7+ Kh8 Ba2 Rf8 Rf5 Rf6 Ne8 Rg6 Qc6 Rge6 Qca4 Qcd6 Qa6 Q6c7 Nd6 e8B Rd1 Qg7 Rf8+ Qg8 Rd3 Ba4 Ne8 Qd7 Rd1 Nb4 Rd6 Nbd5 Nc4 Bb3 Bc3 Ba4 Ba5 Bb3 Nb2 Ba4 Rf6 Qg3 Rf7 Rcc4 Rf6 Bd1 Rf5 Rc2 Rf7 Ba7 Bd8 Bb6 Rf8+
QNQ3q1/K1b2r1b/7P/1rRq1NrN/2nRqR2/B2rpB1k/5nR1/2R4N w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kh4 d4 g5 f4 a5 b4 e5+ d6 g3 d5 a4 b6 e4 f6 e3 b7 c6 b5 g2 f5 g4 f7 a3 b6 g3 f6 a2 Ba3 Rh7 Nc3 Qe7 Qc2 Bg4 Nh3 g1Q Nf4 g2 Rc1 a1Q Nh5 Be2 Ne4 Bf3 Be2 Kg4 h4 Qf1 Neg3 g1R Rh2 Qe1 Nh1 Nh6 Rg2+ Qg3 Qa2 Bg7 f8Q Qe4 f7 Qae5 d7 Kh3 d8N Ng4 Ne6 Nf2 Qc8 Qeg5 f8R Be5 d6 Rf7 d7 Bc7+ Qd5 Rd1 d8R Rd3 Nd4+ Nd7+ Kb4 c5+ Kb5 c4 b8R c3 b7 c2 Nf5 Bg4 Bf3 Ne5 Qc6 Ra7 Rd4 Nc4 Ra8 Ra6 b8N Rb6+ Kc5 Qg8 Ra5 Qge5+ Qd5 Qe6 Qa8 Qd7 Rb5 Rg6 Ra5 Rg5 Rb5 Qde6 Ra5 Qd6+ Kb5 Qdd5+ Ka6 Rd2 Ka7 Rd3 Re1 c1R Rc5 Ra1 Rc1 Rb1 Rd8 Qee6 Rf4 Rb5 Rd7 Qde4 Rd4 Q6e5 Nhg7 Qe6 h5 Q6d5 h6 Bh5 Qe6 Bg6 Nh5 Bh7 Qa6 Rb6 Qc8 Rb5
1q3K1B/8/1k1NNP1r/R2Q1r2/B1R1Nb2/1b2r1n1/pRR2br1/n2N1NqQ w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 b4 h5 f4 a5 d4 h3 b6+ Kb7 b5 c4 d6 a4 Kd5 h2 g5 h4 d7 h3 Ke6 e4 Kf7 e3 d5 e2 d6 e1Q f6 a3 g6 c3 g7 c2 f5 Ra6 Nd2 Qf2 Ne2 Rh6 Nc3 Qf3 Bb2 Ne7 g8N Qc7 d8N+ Ka8 d7 c1B Nb7 Qf2 d8Q Qd4 Qd5 Qdc5 Nd6+ Nbc6 b7+ Ka7 b8R Na5 Rg1 h1R Rg2 Bb7 Rc8 h2 Ke8 Rg1 f7 h1R Nf6 R1h5 Nfe4 Bg7 f8N Kb6 Ne6 Bd4 Kf8 Qb8 Qe1 Ra7 Nd1 Bf2 Bh8 Nb3 f6 Rf5 Be2 Ra6 Nf1 Bf4 Bh5 Bc6 Be8 Bd7 Ra2 Na1 Rb2 Qc1 Rc4 a2 Rg5 Ra8 Rbc2 Ra3 Rh5 Re3 Rg5 Ka7 b6+ Ka6 b7 Kb6 Rh5 Ba4 Rg5 Rg2 Rh5 Qa7 b8R+ Qb7 Rg5 Bb3 Ba4 Qb1 Rbc8 Qb8 Rb2 Nc6 Rcc2 Nd4 Rh5 Ne2 Rg5 Bg1 Qh4 Bf2 Qh1 Qb7 R8c3 Ng3 Rc4 Qc7 Rg7 Qc5 Ra7 Qc7 Ra5 Qb7 Ndc3 Qe1 Nd1 Qa7 Nh2 Qg1 Nf1 Qb8+
RR3r1k/2bQ2NB/1B1P2nr/3rb2B/pRK2R2/Q2bq1b1/7n/1N2BRq1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 b4 c5 g4 e5 f4 h5 d6 a5 f6+ Kh7 f5 h3 b6 h2 f7 h4 f6 h3 g5 e4+ Kc4 e3 d4 e2 d7 e1B b5 Bb4 b7 Ne7 d5 Qb6 d8B Bf5 Be2 Ng6 Bh5 Bg7 f8R Be1 f7 Nd7 b8R Bg3 Nf3 B7e5 Bd2 Nf6 Rf1 h1R Nd4 h2 Ne6 Ng4 Be1 a4 Rf4 Ra6 Ng7 Ra5 Re8 Qa7 b6 Rf8 b7 Kh8 Bb6 Rb5 Ra8 Bc7 b8R Bd3+ Kc3 c4 Ree4 Rc5 Kd4 c3 Qd2 N6e5 g6 c2 Qd1 c1B Qd2 Rg8 f8Q Ba3 Qe7 Rf8 d6 Ra5 Qc1 Rd5+ Kc3 Bc5 Qd7 Bcf2 Kb4 Bd4 Qa3 Bb2 Ba5 Qe3 Bb6 Rf1 Rd4 h1Q Rc4 Rd4 Kc5 Qhg1 Rb4 Rf3 Ra2 Bc3 Rf2 Nh2 Rf1 Bb2 Rh4 Rf6 Rhf4 Qe4 Ne6 Qee3 g7+ Kh7 g8B+ Kh8 Ng7 Rh6 Bh7 Ng6 Rb3 Rd5+ Kb4 Bf5 Kc4 Be5 Rb4 Bd3+
2b2r2/BQB2q2/2p2K2/B1nN1b2/2B1QbRn/1PQbr3/5BQ1/1kqn1RN1 w - - 0 1 illegal: No possible last move, all moves rejected
NN1QbRb1/5qK1/1Bp1BB2/2BrN1Rr/QBPrq2n/4k3/1b5b/1n4N1 w - - 0 1 illegal: No possible last move, all moves rejected
Nbn1bnNb/3Brp1q/q1B4R/3PN2Q/1k1B1q1Q/4K1BN/1Br3b1/5R2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 h4 Kd6 e4 Kc5 d4+ Kb4 d6 g5 e5 c5 d7 a5 b6 g4 b7 f3 d5 c4 e6 a4 h6 c3 h5 c2 e7 g3+ Ke3 a3 e8B g2 h7 a2 h6 f2 Nc3 Qa5 d8Q Na6 b8N Nc5 Bfb5 f1B Qh4+ Bc4 Bed7 Qa4 Na6+ Ka5 Nh3 Bd6 Nc7 Ne7 Ne4 Ra7 Na8 Kb4 Qdh5 Bb8 Bbc6 Ne6 Nf6 Nf8 Ng8 Qa6 b3 Bb7 Bb2 Nc8 Raf1 a1B Bd4 Bd3 Bb2+ Be4 Rh2 Kc5 b4+ Kc4 b5 Kb4 b6 g1Q+ Nf2 Qg2 Nh3 Qg6 Bd4 Bg2 Rhh1 Qa4 Rh2 Ba6 b7 Bb5 Rhh1 Qa6 Rh2 Bd6 b8B Be5 Rhh1 Bh2 Bg3 c1Q+ Kf2 Qc4 Ke3 Rc7 Ne7 Rg8 h8N Qh7 Nhg6 Rh8 Ng8 Bb2 Bf5 Re7+ Ne5 Ba1 Nf6 Rg8 Bfd7 Rg4 Bb2 Rd4 Ng8 Rd2 Bd4 Rc2 Bb2 Qg6 h7 Qcg4 h8B Qh7 Rf6 Qc4 Rhf1 Ba4 Rh6 Qg4 Bf5 Qgc4 Bb7 Be8 Bc6 Qa2 Bf4 Bd7 Bc1 Bc3 Bb2 Ne6 Nf3 Qaa6 Bfe5 Be8 Bhg7 Nf8 Bfd7 Ne6 Bb8 Bc7 Be5 Nf8 Ba7 Bb8 Bb6 Ne6 Bg3 Bh8 Ne5 Nf8 Ba7 Qg4 Bad4 Qf4+
Q1qBQN1N/2bNPr2/2KN1n2/2Rbr1n1/1bq5/1B4k1/N2B2p1/1n2RBb1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 g5 Kc5 f5 d4 f4 e4 g3 h4 a4 b4 f3 e6 Kf6+ e7 a3 d6 f2 e8B g4 b6 g2 b5 a2 d5 Ke5 b7 g3 b6 c6 h5 Qe7 h6 Rh7 Qe2 Qf7 Rh5+ Bf5 Nf3+ Kf6 Nh4 Ke5 Nc3 g1B Bd2 g2 Re1 a1B Na2 Nf6 Qf3 Qc7 Bf7 Qc8 Qa3 Rg7 h7 Be7 h8N Nh7 Qa5 Ng5 Bg8 Bg4 Nf5 Rf7 Qa7 Bd8 d7 Bc3 d6 Bc7 d8B Ba5 d7 Bb4+ Kc4 c5 Kb5 c4 Nd6 c3 Qa4 Rh7 Bb3 c2 Qa3 c1Q Qa5 Nc6 b8Q Be6 b7 Rf7 Qa4 Ra7 Qa8 Ne7 b8N Qc3 Rh3 Qd4 Rc3 Nd5 Kc6 Ra5 Rc5 Qc4 Qb5 Kd4 e5 Nf6 Bd3 f1N Qa4 Ne3 Bf1 Nc2 Qb5 Na3 Qa4 Bh3 e6 Nb1 e7 Be6 Qb5 Qc3 Qe2 Qd3 Qh5 Qc4 Qg6 Rb5 Qg8 Ra5 Qe8 Qc1 Rc3 Re5 Rc5 Bca5+ Bc7 Qc4 d8N Bh3 Nd7 Bb6 Be2 Bg4 Nf5+ Ke4 Bf1+ Kf3 Nd6 Kg3 Ne6 Bh3 Nef8 Be6 Nc1 Q8a6 Bd8 Bc7+ Nb6 Qc8 Nbd7 Kf3 Na2 Kg4 Qa5 Kg3 Qa8 Bd5#
3NQbNn/1bn1p1R1/7q/QKQqN3/3b2Qr/NP3B2/rnb4k/BN3R2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 d4 h5 g4 a5 d6 c5 b6 h3 b3 h2 d7 h4 f6 a4 d5 h3 d6 a3 g5 a2 b7 Ra6 g6 Ra4+ Kb5 c4 g7 c3 f5 c2 f7 Nh6 g8N Ra6 f6 Ra8 Bg2+ Ke5 Bf3 Nc6 b8Q Bb7 Na3 Nb4 Qa7 Na6 Bb2+ Kf4 Qc5 Kg3 Rc1 Be4 Ba1 Bf5 Rb1 c1N Rb2 Nd3 Rg2+ Kf4 Rg6 Nb2 Rg7 Bc2 Qe2 Ra7 Qg2 Qa8 d8Q Qd5 d7 Rh7 Qa5 Nc7+ Kb4 Rh8 d8N Ra6 Be4 Ra7 Nf3 Ra8 Rg1 h1Q Nd2 h2 Bf3 Rh7 Rb1 Qc1 Qh3 h1B Qd7 Bg2 Qe8 Qh1 Rf1 Qh3 Ndb1 Qh1 Bg4+ Kg3 Bf3+ Kh2 Qd7 Ng4 Qc8 Rh4 Qf5 Ne5+ Qg4 Ne8 Kb5 Ng6 Qd4 Ra7 Qg4 Nh8 Rh7 Bh6 f8Q Ra6 f7 Nc7+ Kb4 Bg7 Qe8 Bf8 Rg7 Ra7 Rf2 Qc1 Rf1 Qh6 Rh7 Bg7 f8N Ra6 Ng6 Bf8 Ne5 Qd4+ Nac4 Qhd6 Qab5 Qd3 Bb7 Qh6 Rg7 Ra3 Qa5 Bd5 Ba6 Bb7 Bb5 Qd1 Bc6 Qd3 Be4 Qd5 Bf3 Na4 Bb2 a1B Bc3 Ra2 Nca3 Na6+ Kb5 Bb2 Be1 Bd4 Bc3 Nc7+ Kb4 Nb6 Ba1 Nc4 Ka4 Nb2+ Kb4 Na6+ Kb5 Nc7+
R1B3b1/2RP2Kp/Q3q1n1/5qRB/2N4q/nnr5/k1q1Q1N1/Br2bRRB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 f5 g4 a5 b6 a4 b7 f3 g6 f4 g7 f2 g5 f3 d6 c4 d7 a3 g6 c3 d5 a2 d6 c2 Na3 Kb3 Qe2 Ne7 Kf6 Qe8 g8B+ Kb4 d8R Qa4 g7 Ng6 d7 Nc6 b8Q+ Bb7 e5 Ra7 e6 Kb3 e7+ Qc4 e8B Ra6 Qd6 Na7 Nh3 Nc6 Nf4 Ra4 Bd5 Nce5 g8R Rb4 Rc8 Ba6 Be3 c1Q Rc7 Qc2 Bd4 Rb5 Re1 a1N Ng2 Ka2 b4 Nb3 Ba1 Bb7 Be4 Bd5 Qa6 Be7+ Kg7 Bh4 Rg1 Rb6 Rf8 Bg8 b5 Qe6 Rf5 Nc4 Rg5 Rc6 b6 Bg3 Nb1+ Na3 b7 Rc3 b8R Bh4 Ra8 Bg3 Qec4 Bh4 Be2 f1Q Nd2 Qf2 Ref1 Qe1 Bb7 f2 Bc8 Bg3 Bf3 Q1e4 Rb1 f1Q Qe2 Qh4 Nc4 Qf2 Bd5 Qff5 Rbf1 Be1 Bc6 Ne5 Bh5 Ng6 Be4 Bf7 Bcb7 Rb8 Bc8 Rb5 Nf4 Bg8 Bh1 Nc5 Ng2 Rb1 Qd3 Nb3 Qe3 Rb2 Qe2 Rb1
1RbBK1B1/1P1Q2N1/R1N2N2/n4rq1/k2N1Qb1/2pq1Q2/1q1bN1b1/n1Q2r2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 h5 Ke4 a5 Ke5 c5 f4 h3 g4 a4 d4 a3 b4 c4 f6 c3 f7 h2 d6 h4 b6 Kc6 g5 h3 g6 a2 b7 e6 b5+ Kb6 d7 Ka5 d5 Qb6 d8N Bd7 f5 Rh5 g7 Qc7+ d6 Qb6 Bg5 Bc8 d7 Nf6 g8N Qa7 b6 Ne4 f6 Bh6 f8Q Nc5 Kd6 e5 Ke7 e4 f7 e3 Na3 e2 Nb5 e1Q+ Ne6 Qd2 d8Q Qd3 Nbd4 Nb3 Qd7 Nc6+ Ke8 Ka4 b8N Qa5 Bd8 Bd2 b7 Qg5 Nge2 Ra6 Rg1 h1B Ng7 h2 Nf6 Bf3 Qc1 h1B Qfd6 Bg4 f8Q Rb6 Qf4 Bg2 Qff7 Rh1 Qfd5 Rb5 Qdf3 Nca5 Nbc6 B2h3 Rg2 Rf5 Rh2 Bg2 Rh8 Qc4 Ng3 Qa6 Bc4 Rf1 Nge2 Qb5 Bg8 Qd3 Rb1 Na1 Rb6 Nc2 Ra6 a1Q Qfd6 Qb1 Qdf4 Qb2 Bc4 Qa1 Bc7 Bh1 Kd8 Qb2 Rf8 Na1 Bg8 Bg2 Ke7 Be1 Rd8 Bd2 Ke8 B2h3 Qdd6 Be6 Rb8 Bc8 Bd8 Bg2 Qe6 Re1 Qd7 Rf1
qQ6/P1BBrR1n/N1bpQb2/4qNr1/1n1r1B2/2K1Q1r1/RQ3BQ1/3k2q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 c4 Kf6 a4 Kg5 f4+ Kh4 c6 b5 a5 g5 h6 e5 h7 b3 c5 b4 c7 b2 f6 b3 f7 e4 c6 e3+ Kc3 g4 a6 g3 f5 e2 f6 Kg4 h4 g2 h5 Bh6 f8B Bg7 h6 Bb7 c8Q Ne7 a7 Na6 c7 Bd5 Nf3 e1R Qc2 g1Q Qg2+ Kf5 Ra2 Ke4 Bb5 Bc4 Qb8 Qe8 c8Q Ng6 Na3 b1R Bc5 b2 Bf2 Nf8 Bf4 Rbd1 Nc2 b1Q Nb4 Rg8 h8B Bd5 h7 Rd4 f7 Qe5 Qc6 Qd1 Qe6 Bc6 Rh5 Re2 Rf5 Bf6 Bg7 Qa4 h8Q Nh7 f8Q d6 Qfe8 Re1 Bf8 Rg5 Be7 Qd1 Bd8 Qe2 Nh4+ Qf3+ Nd3 Nb4 Bc7 Bd5 Bd7 Bc6 Qb7 Rd8 Qb8 Rg3 Q8e7 Rdg8 Qee8 R8g5 Q8e7 Bg7 Rf7 Bf6 Nf5 Re2 Qh3 Qfh1 Qf1 Kf3 Nc5 Ree4 Na6 Re1 Bd2 Ree4 Qg2+ Ke2+ Bde3+ Nc2 Qb2 Kd1 Qhb8 Nb4 Qef8 Qh5 Qh6 Qe2 Qhh3 Q2b5 Qh6 Qb7 Qhh3 Qa8 Qh6 R3g4 Bf4 Re2 Qhh3 Re1 Qe3 Rg3 Qbe8 Re2 Qb8 Red2 Qc4 Qb5 Qef3+ Re2 Qd5 R3g4 Qfg3 Re7 Qe3 Rg3 Qe6 Qe5
1RqN2nk/4N2r/n3pbRr/B1N4r/P2N2R1/R1NKQ3/Br5Q/r2r3b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 a4 b5 d4 c5 h4 g5 f4 Kg7 f6+ Kh7 f5 c4 f7 g4 f6 e6 h6 g3 h5 b3 d6 b2 d5 c3 d7 c2 d6 g2 Qd4 b4 Nf3 g1R Bd2 c1R Rh4 b3 Nc3 b1R Qe3 b2 Rg4 Qa5 d8N Bd7 Nb7 Be8 d7 Qb4 d8N Rg2+ Kd3 Qa3 Nc5 Ne7 Nd4 Qb3 Ra3 Bg7 f8R Ra5 f7 Ra1 Rg8 b1R f8R Bf6 R8g6 Rh2 Bg2 Na6 Bd5 Qb8 Ba2 Rb2 Be1 Rg8 Bd2 Kh8 h7 Rcb1 Rf7 Bg5 Nd7 Qc8 Nd1 Rg7 Bb4 Rb5 Nc3 Ng8 Ba5 Bf6 Re7 Rd5 Nc5 Bc6 Rc7 Bh4 Ra7 Bf6 Ra8 Rg5 Rb8 Bh1 Qc1 Rh4 Qe3 Rf7 Rh6 Kg7 h8Q+ Kf8 Rg6 Rfb7 h6 Rf1 Qh7 Rh3 Qc7 Ra7 Qh2 Re7 h7 Rh6 h8N Reh7 Rg7 Rgh5 R7g5 Rfc1 Ng6+ Kg7 Ne7+ Kh8 Rg6 Rd1+
1Qr1N2B/Kr1QPBR1/2rR1N2/2Bn4/k1b1Bb1q/1R3p1B/8/1nrrr1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 f5 g4 a5 e4 c5 d4 h5 d6 a4 e5 h4 e6+ Ke8 d5 a3 g6 h3 d7+ Ke7 g5 Kd6 g7 h2 g6 a2 e7 f3 Ke3 f2 b6 c4 Kd4 c3 b5 f4 b7 f3 b6 c2 Nc3 Nh6 g8B Ra3 g7 Ra5 Bb2 c1R Nge2 Rh7 Nf4 Qc7 d8B Qc6 Bf7 Na6 g8B Nc7 b8R Ra7 b7 Ng4 Ne6 Nf6 Rg1 h1R Ng7 R1h6 Bh3 Rh8 Bh7 f1R Be4 Be6 Ne8+ Kd7 d6 Qa4+ Kc5 Re1 Kb6 Nb5 Rg5 Na3 Nd5 Nb1 Rg7 Rg8 Bd4 Rg6 Bc5 Qd4 Qd2 Qf2 Bc7 Qh4 Ra8 Rh6 b8Q Rb7+ Ka6 Kc6 d7 Rgh8 d8R Rcd1 Be5 Rc1 Ne3+ Nd5 Ng4 Rg6 Ngf6 Rcd1 Rh7 Bh6 Rg7 Bf4 Qd3 Na3 Rb1 a1R Rb3 Rac1 Ba1 Nb1 Ra7 Rc7 Rab7 Rc8 Ka7 Rhh6 R7b4 Rg2 Rc4 Rb2 Rc2 Rg6 Rg2 Rh6 Rg1 Rg6 Rb7 Rb6 Qd4 Kb5 Rd6 Ka5 Qd3 Rbc6 Rb3 Ka4 Qc3 Rg4 Qe5 Rg2 Qf5 Rb2 Qg4 Nc7 Qf5 Bc4 Qd7 Nd5 Nh7 Be5 Rd3 Qg4 Rgg6 Rb4 Rb3 Bf4 Bh8 Qh5 Nhf6 Qh4 Rg7 Rb7+
rR1B1kNb/2QB1BN1/r2Rb3/6B1/3r1N1K/pn1B1r1Q/q5nP/bb5N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 a5 Kg3 g5 d4 c5 e4 f5 b4 c4 d6 c3 b6 a4 e6 a3 e5 c2 b5 Bh6 d5 Qc7 d7+ Kf8 d8N Ra5 e7+ Ke8 b7 Nf6 b6 Nbd7 b8N Qc4 d6 Ra6 b7 Qa2 Nbc6 Nc5 b8Q Nd5 Qd3 Nb3 Ne2 Be6 Nf4 Ne3 Nd2 Ng2 Qc7 Bg7 Ne4 Rf8 Bd2 c1B Rb1 Bh8 Nf2 Bb2 Qe3 Rg8 Bd3 Ba1 Rhd1 Rf8 Nh1 Rf6 Nb7 Kf7 e8B+ Kf8 d7 Ra8 Kf2 g3+ Kf3 Rf7 d8B Rf6 Ne7 g4+ Ke2 Rf7 Ng8 Rd7 Bf7 Rd4 Nc5 Ra6 Nh5 f4 Ng7 f3+ Kf1 f2 Rb2 Na5 Rb8 Nb3 Qh6 Ra8 B2g5 Ra6 Qh3 Ra8 Bf5 Ra6 Rd2 Ra8 Nd3 Ra6 Ke2 f1B+ Kd1 Ra8 Nf4 Bd3 Be4 Bb1 Ke2 Nh4 Bc2 g2 Kf2 g1R Bd3 Ng2 Kg3 Rc1 Rd1 Rc6 Rd2 Rca6 Rd1 Ne3 Kh4 g3 Rd2 g2 Rd1 Bd5 e6 g1R Bh7 Re4 Bhg6 Bc4 Rd6 Rd4 Bd3 Rg2 Be8 Rf2 Bd7 Rf3 e7+ Kf7 e8B+ Kf8 Beg6 Be6 Bf7 Ng2+
1bBR3r/Q2Rbk2/1N1r1B1K/n1np4/R3R2Q/QQ2r1rq/1P1Nb1b1/5Q2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 f4 g5 h4 d5 c4 a5 h6 a4 f6 g4 f7+ Ke7 c5 g3 b6 e4 c6 d3 Ke3 a3 h5 d2 h7 a2 h6 g2 b7 Qe8 f5 Be6 Kf4 e3 Kg5 e2 c7 e1B c8R Nf6 Rc4 Na6 b8Q Ng8 f6+ Kd7 Ne2 Bc5 f8Q Nb4 f7 Ra7 Nec3 Bg3 Qb3 d1B Nd2 g1R Bh3 Na6 Re4 Be2 Na4 Ne7 Q8b7+ Kd8 Nb6 Nc6 Qd6+ Bd7 f8Q Na5 Qf1 Qe6 Rh2 Ra8 Qa7 Ke8 Rf2 Bdb5 Rf7 Rd8 Rd7 Ba3 Qdb4 Nc5 Q4a4 Bb4 Qaa3 Bb8+ Bg4 Rg3 Kh5 Rg8 h8Q Bf3 h7 Bg2 Qhf6 Be2 h8R Rf8 Qh4 Rg8 Rb7 Rd6 Rd7 Re3 Ndc4 Rg3 Bg5 Rf8 Nd2 Rg8 Rd1 a1R Bf6 Rc1 Re1 Rcc3 Kh6 Rce3 Rc1 Kf8 Rcc4 Qf5 Rc7 Qf3 Bc8 Qg4 Rd7 Qh3 Rhh7 Rh8 Rcd4 Bc3 Ra4 Bb4 Qa6 Rg7 Rd8+ Kf7 Qa7+ Nd7 Qe1 Rc6 Rd4 Ke6 Qf2 Rgg3 Qf1 B4d6 Ba6 Nc5 Bb7 Re8 Rhd7 Be7 Rf4 Rd6 Rfe4+ Kf7 Bc8 Rh8+
1N1NQb1R/6Kn/Bn2rQ1r/pbnPQ1n1/1R3Q2/1qBN3Q/8/Nr1k2r1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 e6 g5 h3 b6 h4 f6 h2 f5 h3 b7 c4 g6 c3 f7 c2 d7 Kb3 g7 Nf6 g8Q Qb6 d8N Ra6 d5 Rh6 Qd3+ Kb4 Bd2+ Kc5 Bc3 c1N Nf3 Rh7 Nbd2 Qb3 Rb1 Bd7 Ne1 Bb5 Qdg3 Rh6 Nd3+ Kb6 Q3g4 Nh7 f6 Nd7+ Kd4 Bc4 b8N Kb5 Qh8 Ka4 Qf4 Nb6 Ke5 Qb4 Be2 Bb5 Nb3 Qc4 Na1 Nb3 Bf1 Nc5 b4 Qb3 Be2 Bg7 f8Q Ka3 Rhe1 h1R Qe8 Bf8 f7 h2 Rg1 Ka2 Rg8 Rg1 Qhf6 h1N Rh8 Nf2 Q6f5 Nfe4 Qh3 Neg5 Bf1 Be7 f8Q Ka3 Q8f6 Bf8 Re1 Ka2 Re4 Kb1 Be2 Bd7 b5 Bc6 Rb4 Bd7 Kd4 e5+ Ke3 e4 Kd4 e3 Ke5 Bc6 Bf1 e2 Kf5 Nba4 b6 e1R b7 Bb5 Q4e5 Re6 Qf4 Rh5 Kg6 Nb6 Qe5 Bd6 Kg7 Rh6 Nbc6 Rc1 b8Q Re1 Qc7 Be7 Nb8 Rd1 Nb2 Kc1 Bc4 Rde1 Nd3+ Kd1 Qcd6 Re2 Qc7 Rb2 Qef4 Rb1 Qce5 Bd7 Ba6 Bb5 Qc6 Bd6 Qe8 Bf8+
7r/4qN1R/2n2P2/Q2Rb1NN/5Nrr/p1KQnr1B/k1nBQ3/2n2QNb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 f6 a5 f7 c4 g5 e4 f5 e3+ Kc3 h3 g6 e2 b6 e1N b5 a4 g7 a3 b7 h4 b6 h2 Qd3 h3 Bd2 Na6 b8Q+ Qc7 b7 Rh6 Qa7 Rh5 b8Q Rh4 Qb2 Nh6 g8N Qe7 Nf6 Nc2 Nh5 Nab4 Qa5 Bg7 f8Q Bb7 Qf7 Be5 f6 Kd7 d6 Kc6 d7 Rg8 d8N+ Kd6 Qe8 Rgg4 Qeb5 Nf5 Ne6 Nfe3 Ng5 Bf3 Qc1 Nc6 Bg2 Be4 Qcf1 Bf3 Ne2 Bd5 Nef4 Bf3 Qfe2 Be4 Rd1 h1R Qf1 h2 Bh3 Rhg1 Qba6 h1R Ra2 Bg2 Rb2 Bd5 Rb7 R1g3 Qde2 Qf8 Rh7 Rf3 Q6b5 Qe7 Qb3 Ne1 Qc2 Rh2 Qcd3 Be4 Bc1 N1c2 Nd2 Rff2 Ndf3 Rh1 Ng1 Rf3 Kd2 Rh2 d5 Rh1 Qa6 Kc5 d6 Kb4 d7 Rh2 d8N Rh1 Qd7 Kb3 Ndf7 Ka2 Qc7 Bd5 Qca5 c3+ Kd3 Rfg3 Bd2 Bg2 Rb1 Rf3 Rb5 Rh2 Rd5 Bh1 Rh6 Na1 Rh7 c2 Rd4 c1N+ Kc3 Nac2 Qad3 Rhg2 Ne4 Rg8 Neg5 Rh8 Nfe6 Bc7 Nef4 Rgg4 Rd5 Be5+
5BkB/1RQ1n1np/r1NK2B1/nb2nN1B/P6r/2b5/N2QqBbb/4R1N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 c5 Kf4 b5 Ke5 e6 a4 c4 f4 b3 g4 c3 d4 c2 f6 b4 g6+ Ke8 f5 b2 g7 Kf7 g5 b3 g6+ Ke8 d6 Bb7 d5 Ra6 Bd3 Nh6 g8N Qe7 g7 Kf7 Be3 c1N Nc3 b1B d7 b2 d8Q Nb3 d6 Na5 d7 Bg2 Qc7 Qe8 Be2 Bd3 Bf2 b1N Ne7 Na3 Na2 Bb5 Rb1 Rg8 Qd2 Nbc6+ Kd6 e5 Rb3 e4 Bd1 Bd3 Rb7 e3 Bf3 e2 Be4 e1B Bf3 Qa8 d8N+ Ke8 Bd1 Bb5 Be2 Qa7 Bf3 Qe3 Bg4 Ne5+ Nc6 Ng6 Bf3 Qe2 Bh5 Rh8 g8B N3c4+ Kc5 Bg7 Bf7+ Kf8 Be8 Nce5 f7 Rg8 Kd6 Nf4 Bg6 Nd5 Bh5 Bf6 Bg6 Kg7 f8B+ Kh8 Bh5 Rg4 Beg6 Bg5 f6 Rh4 f7 Bf4 Nf5 Bh2 Qc1 Bc3 Qd2 Rf4 Be7 Rh4 f8B Kg8 Bf6 Ne7 Bh8 Nhf7+ Kc5 Nd8 Kd6 Ne6 Nf3 Nc5 Re1 Ne6 Ng1 Ng7
nRN1NNRN/1P3nbr/4BK1N/1Q2p2k/1rbr4/2b2b2/Bq1r4/Q3BB2 w - - 0 1 illegal: No possible last move
1kB1Q3/3nq1Bp/5QqP/Qr2NQbN/1R4KB/1B1q1n2/2R3b1/b4bQb w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 a5 cxd5 b5 axb5 Ra6 Ra2 Rf6 Ra3 exf4 Ra1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 Kd7 h4 c5 e4 Kc7 b4 g5 d4 c4 h5 g4 b6+ Kb7 f6 c3 d6 c2 h6 a4 d7 a3 b5 a2 f7 Qc7 d8Q Ne7 e5 Be6 d5 Ng8 d6 Be7 f8B Nd7 Nh3 Qc4 Rh2 Ngf6 Bg7 Qb4 Nd2 Bf5 e6 Rf8 Bc4 Rg8 Qg1 Bf8 e7 Be6 e8B Qa3 Bb3 Qb4 Rb1 a1B Nc4 Be7 Ne5 Bd5 Bf7 Qc3 Be6 Qd3 Bd2 c1Q Be1 Qc7 Rg2 Nc5 Bc8+ Kb8 d7 Ne6 b7 Ng5 Rh2 Qd6 Qa5 Be4 d8Q Nd7 Qdb6 Bd8 Rb2 Qe7 Qf6 Rf8 Qf5 Rf6 Rc2 Rb6 Rc4 Qdd6 Rb4 g3+ Kf1 f2 Ke2 f3+ Ke3 f1B Kf4 f2 Kg4 g2 Nf4 Bc6 Nh5 Nf3 Qf6 Bd3 Qf5 f1B Bh4 Bde4 Qf6 Qf7 Qf5 Bg5 Qf6 Qfe7 Qf5 Kc7 b8Q+ Kd8 Qba8 Qd3 Q5a6 Rb8 b6 Bed5 b7 Kc7 Q8a7 Be4 Qa8 Bcd5 Qaf6 Bc6 Qf2 g1Q+ Qg2 Qb6 Qg1 Bcd5 Qf8 Qg6 Q8f6 Nd4 Ra2 Beg2 Rc2+ Bc6 Qa3 Nf3 Qa4 Ra8 Qb5 Ra5 Qa6 Rb5 b8Q+ Kd8 Qba8 Kc7 Qa4 Bh1 Q8a6 Kb8 Q6a5 Rb7 Q4b5 Be4 Qbc6 Rb5 Qce6 Ba8 Qef7 Be4 Qe8 Nd2 Rc1 Beg2 Rc2 Nf3
3bQBk1/N7/2p3q1/r1B1rbB1/2PNBQQb/qQ1QR2r/1KR2q1q/5n2 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Na6 h3 Nc5 h4 Ne4 Bd2 fxg4 Bc1 g3 Nd2 g4 Nb1 Ng5 hxg5 Bg7 Qd4 Bh6 Qd1 Bf8 Kd2 Kf7 Kc3 d5 b4 a5 f4 h5 e4 d4+ Kb2 h4 c4 a4 g6+ Kg7 b6 g2 b5 c6 b7 h3 b8B d3 b6 g3 b7 d2 f5 h2 e6 Qb6+ Qb3 d1Q e7 Bd7 e8Q Rh6 f6+ Kh8 e5 Bc5 e6 Be7 f7 Qf2+ Ne2 g1B f8B g2 Qd8 Ra5 Bg5 Rh5 Ba7 Qd6 b8Q Nh6 g7+ Kg8 Nc3 Ng4 Ra2 Ne3 Nb5 Rh3 Bc5 a3+ Kb1 Bf6 e7 Bf5+ Rc2 a2+ Kc1 Qd3 Ned4 a1R+ Kb2 Re1 e8Q Be7 Qdd6 Bd8 Na7 Re2 Qdg6 Re1 Be2 Nf1 Bf3 Re5 Be4 Qde3 Qgd6 Qeg3 Bf4 Qg6 Bg5 Qg3 Qd3 Bf2 Qbb3 g1Q Qc7 Q1g2 Rg1 h1Q Qd6 Re7 Qf4 Qhh2 Rh1 Re5 Rg1 Nd2 Re1 Q3f3 Re3 Bh4 Qd7 Qgf2 Qc8 Kf7 Qcb8 Nf1 g8Q+ Ke8 Qg4 Q3g3 Qh8 Kf7 Qhh5 Qgf3 Qf4 Kg8 Qhg4 Qd1 Qa8 Qde1 Qc8 Qb4 Qd7 Qa4 Qe8 Qa3+
brB2Q2/n4n1k/1K3Bn1/1B2b1p1/2QB1Bnn/5R1b/N5PQ/n1qQR1N1 w - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 a4 exf4 axb5 g5 h5 Ra6 Nh3 Rg6 hxg6 Na6 Ng1 Nb8 Kf2 f5 e4 h5 b4 c5 d4 a4 b6 h4 b7 c4 g7 Kf7 b5 Kg6 d6 f3 Ke3 c3 d5 f4+ Kd4 a3 Kc5 h3 b6 f2 e5 c2 e6 h2 e7 f3 e8Q+ Kh7 Ne2 a2 Bb2 c1N Bd4 Nc6 b8B Na7 b7 Bh3 Qf7 Qc8+ Kb6 Nd3 d7 Bd6 d8Q Qc1 Ng1 Ne5 Nc3 Ng6 Qdf8 Be5 d6 Nh6 Qc4 Nf7 d7 Rg8 Rb1 a1N d8B Rh8 Bd3 f1N Rb3 f2 Na2 Ng3 Bf6 f1B Be2 Nf5 Rf3 Nfh4 Bc7 Be6 b8Q Bh3 Bd3 Be2 Bf5 Bd3 Bc8 Be4 Bd6 Bb7 Qbc7 Bg3 Bf4 Rg8 Ne2 Rh8 Re1 h1N Ng1 Nf2 Bd7 Ng4 Bb5 Kh6 g8B+ Kh5 Qfe7 Kh6 Bh7 Rb8 Qce5 Ngh8 Bf5 N8g6 Bc8 Kh7 Qf8 Bf2 Bc5 Bd4 Qc7 Bb2 Bcd4 Bc3 Bd2 Bb2 Qh2 Bc3 Bf4 Bb2 Bde3 Be5 Bd4 Ba8+
N4nQ1/2q3Qp/1BR5/n3Q1bR/1k1r2B1/3nNN2/1NqNqQnP/K2q1r2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 exf4 cxd5 f3 Na3 f4 Nb1 Bf5 gxf5 Qd6 Ra3 Qe7 Ra1 Qd8 d4 Ke7 Kd2 Kd6 Kc2 c5 e4 g5 b4 a5 Kb2 a4 f6 g4 b6 f2 f7 f3 b7 g3 e5+ Ke7 e6 Kd6 b5 g2 b6 c4 e7 Nh6 e8N+ Kd7 d6 Kc6 d7 Kb5 d5 Qc7 d8N Ra7 d6 Qe7 d7 Ra5 Be2 f1N Qd4 f2 Nc6 Ne3 d8N f1Q Nf6 Nd7 b8Q Ng8 b7 Bh6 Ne5 Kb4 f8Q Rd5 Nfg4 a3+ Ka2 Qf7 Ne6 Qf1 Qda7 c3 Qf6 c2 Nd3+ Kb5 Bf3 Qe2 Qg7 Qd6 Qba8 Ne7 b8Q+ Qb6 Qg3 Nc6 Nc7+ Kc4 Qc8 Rf8 Na8 Qc7 Qa5 Rf4 Qcg8 Nf8 Bb2 Rf7 Bd4 Bf4 Bb6 Rd4 Qf5 c1Q+ Nb2+ Kb4 Nd2 Bh6 Nh3 g1Q Ng5 Ng2 Ne3 Qc3 Rc1 Na5 Bg4 Qge1 Rf1 Q1d1 Kb1 Q3c6 Q3e5 a2+ Ka1 Qe4 Rf3 Q4d3 Rh3 Q3b3 Qf1 Rf3 Qg1 Rf1 Ngf3 Bg5 Qf2 Qbd3 Rh5 Qg6 Na4 Qf5 Kb2 a1N Rc6 N1b3 Ka2 Qfc2+ Nb2 Nc1+ Ka1 Nd3+
1QR2n1R/rN4Qr/bB1B4/3RBn2/1p2Rn1r/1P3p2/Kb2NqBk/2B3b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 b4 Nh3 Qd7 Ng1 Qb5 axb5 Rh6 Qb3 Rh7 Qd1 Rh8 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 a5 h4 g5 e4 f5 h6 a4+ Ka2 f3 h5 f4 e5+ Kd7 b6 a3 b7 f2 d6 Ke6 h7 Kf5 d5 c4 b3 f3 h6 Kg4 d7 Kg3 d8B c3 d6 c2 d7 g4 e6 Nc6 b8B+ Bd6 e7 Nd4 e8Q Be5 Bb6 Ne7 d8R Ng6 Bd6 Ba6 Rh4 Nf8 Bg2 f1Q Nd2 Qf2 Nc4 Ra7 Rc8 Nf5 Na5 Rc7 Nb7 Rf7 Nh3 Kh2 Qd4 g3 Re4 Rg7 Ng1 Rc7 Qc4 Bb2 Ne2 Rg7 Qc7 Rg4 Bd2 Rh4 Qg7 c1N+ Kb1 Nd3 Ka2 Qf1 Rd1 Nf4 Bc1 Qg1 Rd5 Qf2 Bh3 g2 Qb5 Rg8 h8R g1B h7 Bd4 Qe7 Bb2 Bg2 Rg6 Qc7 Rgh6 Qb8 R6h5 Qd7 Rh6 Rg8 R6h5 h8B Rh7 Bhe5 Bd3 Qg7 Ba6 Kb1 a2+ Kc2 a1R Rh8 Ra5 Kb1 Rc5 Ka2 Rc7 Nd8 Ra7 Nb7 Qd4 Bbc5 Qe3 Bb6 Qf2
3B1RnQ/4b1QP/QQ1Q1b2/qrB1R3/n3bBpK/8/pnB1kr1N/1N2r3 w - - 0 1 illegal: No possible last move
r2nK1R1/2kp1Q2/r6n/1BBq1R1b/1RBN1R1N/7P/1p1br1R1/1b1QB2n w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 e5 Kd3 g5 Ke4 b5 Kd5 g4 f4 e4 c4 b3 a4 b4 c6 b2 f6 b3 a5 e3 h6 g3 c5 e2 f5 e1N c7 g2 f7+ Ke7 h3 Nc2 a6 Bb7+ c6 Ne1 c8R Ra7 h7 Nf3 Bc4 Bg7 f8B+ Ke8 Kd6 Bf6 c7 Nh6 Ra2 Bd5 Ne2 g1R Bd2 Be4 Nd4 Rhg8 h8R Bc2 Be1 Bh4 f6 Ne5 Nd2 b1B N2f3 Nhg4 Rh5 Bg3 Rf5 Nf2 Nh4 Nbc6 Rb8 Bf4 c8B Qa5 f7+ Kd8 Rb4 R1g2 Rf1 Nh1 Bb7 Bh6 R1f4 Ng4 Bc8 Ra8 a7 Re2 B8a6 Bd3 Rd2 b2 Bab5 Bg5 Rc2 Nh6 Be7+ Kc8 f8Q+ Nd8 Qf7 Be4 Bf8 Bf3 Rd2 Bh5 Be7 Re3 Rg2 Re2 Bf8 Rb8 a8R Rg6+ Ne6 Rf6 Ke7 Rg6+ Ke8 Rf6 Rd4 Bd2 Bc5 Rg6 Rdg4 Qa2 Raa4 Ra8 Rgf4 Kb7 Ra3 Rf6 Rag3 Qb3 Rg7 Qd3 R7g5 Qd5 Rg8 Rg6 Qe7 Kc8 Nd4 Kc7 Qe6 Be3 Qe7 Rga6+ Qf7 Bd2+
1Qq1Q1N1/1n2Q3/1q1N1K1R/3Bb3/N2rpQ2/Rp3bBP/2Nn2b1/1kr2rQ1 w - - 0 1 illegal: No possible last move
4R2r/4bnN1/R4rK1/Rqk4p/3R2QQ/2PB1rnq/1R1p2bB/1Q2nQ1N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 e5 Ke4 Ke7 g4 Kd6 f4 h5 b4 d3 g6 d2 g5 a4 c3 a3 b6 a2 g7 Ra4 b7 Nc6 b8Q+ Qc7 g6 Ra7 f6 Nce7 f7 Nf5 b5 Ra3 b6 Ngh6 g8Q Ra8 g7 Nd4 b7 Ng4 f5 Ra5 f6 Ra8 Nh3 Kc6 Nf4 d6 Bd3 Kc5 Ne6+ Kc6 Qf1 d1R Nd2 Ra6 Rh4 Ne2 Kf5 e4 Kg6 e3 Ne4 d5 Ng3 d4 Nh1 Be7 f8R Qb6 f7 Nh6 Re8 Qb5 f8R Ng3 Rf5 e2 Bf4 e1N Qh7 Rc1 g8Q Nf7 Ng7 Bd7 Re5 Bh3 Qd8 Bg2 b8R Rb6 Re6+ Kc5 Rf6 Re6 Bc7 Re3 Ra6 Rf3 Ra5 Rd1 Rb6 Rd2 Rba6 Re2 Rb1 a1Q Rb2 Ref2 Rf4 Qc1 Bb8 Qe3 Bc7 Bd6 Qh4 Be7 Re4 Ne2 Bh2 Ng3 Be2 d3 Rd4 d2 Bd3 Nh6 Qe6 Nf7 Qeg4 Rf5 Qd1 R2f3 Qb1 R5f4 Qg8 Qe6+ Qf6 Qh3 Qh4 Nd8 Qe6 Nf7 Qeg4 Rf6+
3Nk3/1qnr2bB/r1NQN1n1/B1KRpRNB/2Q2P2/nb1N4/2q3Bp/4b3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 e5 g4 c5 d4 h5 f4 a5 b4 c4 g6 c3 b6 c2 g7 e3 Kd3 e2 Kc4 e1N b7 h4 b5 h3 d6 a4 d5 a3 g5 a2 g6 Ra6 d7+ Ke7 b6 Rh7 d6+ Ke6 Bd2 c1B Qa4 Nc6 b8N Nh6 g8B+ Nf7 g7 Bb2 b7 Rh6 Bg2 Bc1 Kc5 Nc2 Nf3 Rh4 Nc3 Kf6 Ne2 Nh8 Qc4 Rh7 Ba5 Na7 Bf7 Nb5 g8B Qe7 d8N Bg7 Ne6 Nca3 Nfg5 Nc7 Nc6 Ng6 b8Q Bd2 Rad1 a1Q Nc1 Be1 Rd5 Qc3 Nd3 Qc2 Be8 Qf7 d7 h2 d8N Bd7 Rf1 Bc8 Rf3 Qd7 Rh3 Qf7 Rh5 Bd7 Na7 Ba4 Nac6 Bb3 Qb6 Qd7 Bef7 Qc8 Qb8 Qb7 Be8 Na8 Qd6 Nc7 Bef7 Bh6 Be8 Rd7 Bh7 Bg7 Nh3 Nh8 Rg5 Qa8 Bh5 Ng6 Nb7 Kf7 Nbd8+ Ke8 Rf5 Qc8 Nhg5 Qb7
1KN1Q2q/5rQ1/1r1N3q/P1Nb1p1R/Rn4BB/1nRR2n1/4p2R/2N1brk1 w - - 0 1 illegal: No proof kernel
3qN2R/1BB3RB/NQn5/pKbN1nb1/3qkr2/1N3p2/P3q1Qr/1bB4B w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxc5 Ng8 h4 Kd7 d4 f5 Kd2 g5 Kd3 a5 Kc4 g4 e4 b6 d6 Ke6 c6 g3 d7 f3 c7 f2 h6 f4 h5 f3 e5 Kf5 e6 g2 h7 Na6 h6 Be7 d5 Bf6 d6 Bg7 e7 Rb8 e8B Ne7 Qc2+ Ke5 Nd2 Ng8 Bg6 Nb4 Nh3 g1B Nf4 Ne7 Kb5 Bf6 Nd5 Nec6 Bg2 Re8 h8B Bb7 c8B Bg7 h7 Rf8 Nb3 f1Q+ Bd3 Ba8 Bb7 Bc5 Rh5+ Rf5 Bh1 Bf6 Qg2 Qe2 Bg7 Nc2 h8N Ne3 Nf7+ Ke6 Rh8 Bg5 Rb1 Rf4 Be5 Nf5 Rb2 Rh4 Rc2 Rh2 Rc4 Rc8 Rch4 Rc7 R4h7 Rc8 Rg7 Rb8 Ka6 b5 Bef4 b4 Kb5 Qe7 Bg3 Rf8 d8Q Qf6 d7 Qd4 Nd6 Rf6 Be1 Ke5 Qb6 Rf8 d8N Rf6 Na1 b3 Ne8 b2 Ne6 b1Q+ Nb3 Qbc2 N6c7 Qcd2 Na6 Rf8 Bc4 Ke4 Bg3 Rf7 Ndc7 Qd8 Nd5 Qd4 Bc7 Nh6 Qg1 Rf4 Qg2 Nf5 Re7+ Ne5 Bc8 Ng3 Re6 Kf5 Rg6+ Nd7 Ndb4 Be4 Nd5 Bb1 Bb7 Nb8 Rg7 Nc6 Bd3+ Qee4 Nd6+ Ke5 Bc2 Qee3 Bh7 Nf5 Ne8+ Ke4 Nb8 Qe1 Na6 Qe2+
2qQb2R/bN1B2Nb/2QB3B/p2Rpn1N/2n3Bq/2P1n3/1r4N1/k1rB2K1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 Kf7 Kf2 d5 g4 e5 b4 h5 b6 a5 c3 h4 g6+ Kf6 b5 h3 b7 h2 g7 d3 b6 d2 g5+ Ke7 g6 Kd6 f6 Kc5 f5 d4 f7 d3 f6 Kc4 Qf3 Kb3 Qc6 d1Q Nh3 d2 Be2 Kc2 Na3+ Kb3 Nc4 Ra7 Bg4 Ra8 Ne3 Nh6 g8B Nd7 b8N Qc2 g7 Ra7 b7 Qe7 Nf4 Qf5 Na6 d1B b8B Qb4 Bd6 Rb7 Ng2 Nb6 Nc5+ Kc2 Bh7 Bd7 g8B Be8 Ra2+ Kb1 Rd2 Qc4 Rd5 Bc2 Bg6 Rb8 Nb7 Ka1 B6h5 Qc8 Bh7 Qa4 Bhf5 Nc4 Bd7 Bh7 Kf1 Be7 f8N Nf5 f7 Nfe3+ Kf2 Bd8 N8e6 Bb6 f8Q Ba7 Ng7 Rg8 Qf6 Rf8 Qd8 Rf5 Rf1 h1N+ Kg1 Ng3 Bd1 Rf7 Bhg4 Ngf5 Rf3 Rf6 Rh3 Rh6 Rh2 Rh3 Nfh5 Rf3 Nc5 Rb2 Nb7 Rff2 Rh3 Rbc2 Bd2 Rc1 Rh2 Nc2 Bh6 N2e3 Rh3 Rb2 Rf3 Nd4 Rf8 Ndf5 Rh8 Qb4 Bb8 Qe7 Bd6 Qh4
Bq1n2rk/8/1n1Qrp2/QPBRN1QK/2b1Np1q/R3Q1qR/1b4bR/6R1 w - - 0 1 illegal: No possible last move
1brnqB2/4Qn2/q3p1N1/4b2K/B1N5/B1Np1q1r/R1QNPkB1/1NR1b3 w - - 0 1 illegal: No possible last move
1Bq1b1B1/1k2b3/bn1pN3/p1qn1B1Q/R1Qn3r/3N4/N1PrB1K1/2N1B1R1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 a5 b4 h5 f4 e5 Kf2 d3 g6 e4 g7 d2 g5 d6 f6 Kd7 g6 Kc7 b6+ Kb7 f5 e3+ Kg2 e2 f7 e1Q b5 h4 f6 Bf5 Qh5 d1N Nc3 Qde8 Bd2 Ne7 g8B Nd7 g7 Qe6 Na2 Rb8 Be1 Nc6 Ne2 Nb4 Rg1 Rh7 Nec1 Qe3 Be2 Be7 f8N Bg6 f7 Nc3 Ne6 Qc8 f8N Be8 Ng6 Nc6 Ne5 Nd5 Ned3 Qc5 Bf7 Nd4 g8B Ra8 Bg6 Rh8 Bf5 h3+ Kh1 h2 Kg2 Kb8 b7 h1B+ Kh3 Ka7 b8B+ Kb7 b6 Bg2+ Kh2 Bf1 Kh1 Kc6 b7 N7b6 Bc7 Rh6 b8Q Rg6 Qa7 Rg2 Qa6 Rf2 Qc4 Kb7 Bb8 Ra7 Nc3 Ra8 Ra4 Ra7 Beg4 Rd2 N3a2 Be2 Kg2 Ra8 Ne5 Bd3+ Be2 Ra7 Qb3 Ba6 Ned3 Bg5 Qa3 Ka8 Qh3 Rh7 Qb3 Kb7 Qc4 Be7 Qg4 Rh3 Qh5 Rh4
1bR3q1/nB1Q1r1B/R1P2Bpb/K1q3nb/4pN1N/3R3R/BQ3r1r/5B1k w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 a4 Ke4 h4 d5 f4 e5 c4 b5 h5 g3 a6 g2 a7 d4 f6 d3 f5 d2 h6 Qb6 f7 Qc7 f6 Qd8 a5 Ne7 c6 Qd6+ c5 Bf5 h7 Qd8 a6 Qd4+ Ka5 b4 c7 b3 c8B b2 Rh3 Nd7 Nf3 g1B Nh4 Bg4 Bb7+ Qd5 Rd3 Nc8 Nc3+ Kf4 Ra2 b1Q Bb2 Qc2 Ne2+ Ke4 Bd4 Bh2 Nf4 Bh5 Bc3 Rb8 a8B Na7 Qb1 d1R Qb2 Rd2 Bd4 Rg8 h8R Rf2 Rh6 Rh8 Ra1 Bd6 f8Q g6 f7 Bg1 Qd8 Nf6 f8R Nh7 Qd7 Ng5 Rc8 Bf8 Rh7 Bh6 Ra2 Bh2 Ra1 Nb5 a7 Qc4 Ba6 Qc6 B8b7 Qg8 a8B Na7 Bc4 Bg3 Ba2 Bh2 Ba6 Rb7 B6c4 Qd6 c6 Qc5+ Bb5 Rc7 Bb7 Bg3 Qh3 Rf7 Qd7 Qc1 Bbc4 Qe3 Nhg2 Kf3 Bcb3 e4 Bf6 Re2 Bc4 Kf2 Bd5 Kg1 Nh4 Rf2 Qe5 Qe8 Ka4 Bf8 Nhg2 Re7 Ne6 Qc5 Bac4 Bg4 Qb2 Bc7 Nef4 Qd8 Bg8 Rf7 Rh4 Rh6 Bh7 Bb8 Raa3 Bg7 Ba2 Qg8 Rh2 Rh3 Nh4 Be2 Nd5 Bh5 Nf4 Qe5 Kb4 Bh6 Ra6 Qd4+ Ka5 Qc4 Rg2+ Kh1 Rgg3 Rhh2 Rh3 Qc5+
n1RNR3/1qR5/2p1PN1q/N2rk1B1/4N3/1Bb1p1q1/b1Q1K1Qn/1N1b2rR w - - 0 1 illegal: No possible last move, all moves rejected
R5q1/2bK2nQ/p3n1b1/1NQpQrQP/r1NB3q/2R1R3/B4k2/R1R1b2n w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 d5 f4 g5 b4 g4 h4 d3 h6 g3 f6 d2 b6 Ke3 b7 a6 b5 g2 h7 Qa5 f7 Bf5 h5 Bc8 f5 Ra7 f6 Nh6 Qg4 Be6 Nc3 Bf5 Qg5+ Kf2 Nf3 d1Q Ne5 g1B Bb2 Nc6 b8R Rb7 Re8 Qc7 b6 Bh2 Nb5 Qc8 Bd3 Qf1 Bb1 Qh3 Rc1 Qh4 Ba2 Bg6 Bc3 Rc7 b7 Nf5 b8Q Ncd4+ Kb6 e6 c5 Ng7 c6 Bb4 Nc4 e5 f8R e4 f7 Nde6 Bd4+ e3 Qb7 Re7 c7 Be1 Kc6 Qa8 c8R Bc7 Rc3 Rg8 h8Q Rd7 Bf6 e2 Re7 Qb8 Rfd8 Qa8 f8Q Qb8 Ree8 Rf7 Be5 Rf3 Kd7 Rf5 Qa3 Qa8 Qb8 Rgf8 Qh7 Rf4 Rcc1 R8f5 Qc5+ Rd4 Ne3 Ra4 Bd4 Bd2 Re7 e1N Rh8 Nd3 Nc4+ Kf3 Rhf8 Nf2 Ree8 Nh1 Rg8 Nd8 Re3+ Kf2 Rcc3 Nde6 Rgd8 Bb6 Qe5 Be1 Rc6 Bc7 Rh8 Qa7 Ra8 Qb8 Rb6 Rf8 Nba3 Rf4 Rbb1 Qf8 Rbc1 Rf5 Nb5 Qg8
KRr1Q1b1/4qb1p/QQNk1b1N/4p2P/5rnn/6NR/1N2Nr1q/B1Q1B3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g6 f6 Qd7 f5 Nc6 Bd3 Qd8 f7+ Kd7 f6 Nb8 Bf5+ gxf5 Kf2 c5 Ke3 e5 h4 a5 g4 a4 b4 a3 d4 c4 h5 a2 g5 c3 b6 c2 b7 f4+ Ke4 f3 g6 f2 d6 f1B Kd5 Qe8 b5 Na6 b8N+ Kd8 g7 Nc5 d7 Kc7 d8Q+ Kb7 b6 Ra6 Rh3 Bf5 Qc8+ Ka8 b7+ Ka7 Na3 Kb6 Nc6 Nh6 b8N Bg6 g8N Ng4 Rb1+ Nb3 Ne2 a1R Bb2 c1Q Nh6 Qc3 Ne7 Qa4 Nc4+ Kb5 Nbc6 Qc1 Nef5 Nf2 Nfg3 Ra2 Ba1 Qb4 Nb2 Be7 f8Q Ng4 f7 Nd2 Qfe8 Bf6 f8B Qc2 Qc1 Nf3 Be7 Qa3 Bb4 Ra4 Be1 Nh4 Qce6 Rb4 Kd6 Rf8 Kc7 Bf7 d5 Kc5 d6 Rf4 Kb8 Bg2 d7 Bd5 d8Q Bc4 Ned4 Qh2 Nde2 Rh8 Qec8 Qb4+ Qb6+ Kd6 Qa6 Bg8 Nc3 Bcf7 Ka8 Qa3 Nd3 Raf2 Nce2 Qa2 Rb4 Qe6 Nb2 Qe7 Qba7 Be6 Rb8 Bgf7 Q7b6 Bc4 Qg8 Bb3 Qg6 Rc8 Qg8 Bbe6 Qf8 Bg8 Qe8 Bef7
4RB2/N2qrRp1/3RQPk1/1r1N1R2/2K1nR2/NNp2n1b/6n1/b1qQ1Bb1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 a5 f4 e5 h4 c5 b4 e4+ Kc4 a4 d4 a3 f6 a2 f5 g3 h5 g2 d6 e3 b6 e2 b5 e1N d7 Na6 d5 Nh6 d6 Qe7 d8N+ Kg8 f7+ Kh7 f6 Nd3 d7 Qe5 b7 Qe8 b8Q Ne1 b6 Nc7 b7 Nb5 Nc6 Nf3 d8R Bh3 Qbd6 Qe4+ Nd4 Ne1 b8N Bg4 Na3 Qf5 Nbc6 Nf3 Qe6 Rb8 Na7 Nc3 Rh4 Ne4 Nb3 Rb5 Rd6 Bh3 Ne2 g1Q Rf4 Ng4 h6 Kg6 h7 Rg8 Rb1 a1B h8R Qe3 Bb2 Qc1+ Nc3 Be7 Rh5 Re8 f8R Bd8 Rf7 Re7 Rh8 Bb6 Re8 Ne3+ Kd3 Qh5 Nd5 Qg4 Bc3 Ng2 Bb4 Qf5 Rb2 Qg4 Rf2 Qf5 Qe5 Qc8 Qe6 Qd7 Rf5 Nfd2 R2f4 c4+ Ke2 c3 Kd3 Nf3 Kc4 Bg1 Ra6 Qc7+ Rc6 Rd7 Bf8 Qb7 Ra6 Re7 Rd6 Qd7
r2q1QB1/1q1rBp2/1Pb1p1QN/4bR2/R1n2NqB/1N6/2nnB1N1/1k1K1B2 w - - 0 1 illegal: No proof kernel
1k2bn2/q1RQbprn/pBRBn1P1/6q1/2r5/N1rB2N1/1BR2Q1B/4K1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 b4 h5 e4 c5 g4 Kc7 d6+ Kb7 d5 c4 d7 f3 b6 c3 d6 a6 b5 c2 g6 h4 g7 h3 g5 h2 g6 Nh6 g8R Nf5 e5 Ng3 e6 Nf5 e7 Nd4 e8Q Rh4 Ra2 Ra7 Na3 Ka8 Bb2 c1N Ne2 Be7 Qd2 Ncb3 Rg1 h1R Ng3 Nc5 Bd3 Nce6 Qf2 Rc7 b7+ Ka7 Rf8 Rc3 Rg8 Qa5 d8B Nf8 d7 Nh7 Bc7 Qb6 d8R Bd7 Rc8 Ne6 Qd8 Be8 Qd7 Rd4 Bd6 Rdc4 Rc7 Nef8 Rh8 Nc6 b8B+ Ka8 Rg8 Nd8 Ba7 Nde6 Rh8 Qb7 Bb6 Kb8 Rg8 Qa7 Rh8 Nf6 Rh5 Rh3 Rhc5 Rh7 R5c6 Rg7 Be3 Rb3 b6 Rbc3 b7 N6h7 Bb6 Nf4 Ra1 N4e6 Rc1 Nd8 Qe3 Nde6 Rc2 f2+ Kd2 f1Q Qf2 Qh3 Ke1 Qh4 Be3 Qc5 Bd4 Ka7 b8B+ Ka8 Be3 Qa7 Bb6 Qg5 Bb4 Qb5 Ne2 Rh4 Rc8 Qg5 Bh2+ Qb8 R8c7 Rhc4 Bbd6 Qa7 Ng3 Kb8
br1B4/4P3/5QQ1/1Rpp1n2/1Q1Nk1bK/n2Nn1RQ/2qBB3/bQqBr3 w - - 0 1 illegal: No possible last move, all moves rejected
1RqQb3/4Ppbr/6nk/BRq3q1/1QRr3B/1Kp1BR2/BRNr1N2/2n5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 d4 c5 Kd2 g5 Kc2 c4 e4 a4 b4 g4 d6 c3 d5 f3 h6 g3 h7 g2 h5 a3 h6 a2 d7+ Ke7 b6 Kf6 b5 Kg6 b7 f2 b6 Ne7 d6 Bg7 e5 Bf8 e6 Bg7 Rh2 Ra7 Qg4+ Kf6 Be3 Nd5 e7 Ra8 Nh3 g1Q Qb4 Kg6 Na3 Bf8 Bc4 f1Q Nf2 Qh3 Kb3 Ra5 Rf1 a1R Nc2 Nc6 b8R Rd1 b7 Qc7 d8B Bg7 d7 Ra4 Rg2+ Qcg3 Ba5 Qg5 d8Q Bd7 Rc8 Kh5 b8R Nf4 Rb5 Ne2 Be6 Ne5 Rc4 Ng6 Bd5 Re8 h8B Rd2 h7 Kh6 Be6 Rg8 Bd5 Be8 Be6 Be5 Bf6 Rg7 h8R+ Rh7 Bd5 Qc8 Rg8 Qf4 Bh4 Bg7 Nd1 Ra1 Bef2 Qb7 Qa8 Qc6 Rcc5 Rd3 Na3 Qfh2 Be4 Bd7 Rc4 Rd5 Bb1 Qb8 Ba2 Qc5 Rf8 Rd4 Be3+ Ngf4 Rd8 Be8 Rf3 Rc1 Rh2 Rc2 Qd5 Qbc7 Rdb8 Qg5 Qd8 Ng6 Rhf2 Qc8 Rg2 Nef4 Rd2 Nd3 Nf2 Rc1 Re2 Rd1 Rb2 Rd2 Nc2 Nc1+
k4bN1/1R1pb1pK/3nrNBB/3qR2Q/b1r4R/1n2BPB1/q2qR1R1/Q7 w - - 0 1 legal: proof: e4 c5 d4 h5 dxc5 f5 g4 fxe4 gxh5 b5 a4 Ba6 axb5 Bc8 Kd2 a5 Ke3 e5 h4 a4 b4 a3 c4 a2 f3 Ra4 b6 Nf6 h6 Nh5 h7 Ra3+ Bd3 Ra6 b7 Ra3 c6 Rb3 c7 Nc6 b8B Rb2 b5 Be7 c5 Nb4 b6 Bf6 b7 Nc6 Ne2 Nb4 c6 Be7 Nbc3 Rc2 Nd5 Rg8 h8Q Rd2 Rb1 a1B Nef4 Na6 Rg1 Bf8 Ba7 Qg5 b8B Nf6 h5 Nc5 h6 Bb7 h7 Nb3 Rg2 Rc2 Ne7 Rc4 Qe1 Qf5 Nh5 Qe6 Rbb2 Qd5 Rbe2 Ba6 Bc2 Bb5 Qd1 Ba4 c8R+ Kf7 c7 Ke6 Qd4 Ne8 Nf6 Nd6 Re8 Bc3 c8R Bb4 Rc7 Bc5 Kf2 e3+ Kg3 e4 Kh4 Bb4 Rb7 Ba3 Rd2 e2 Qa1 e1Q+ Kg4 Qh1 Rde2 Qh2 Bh6 Bb4 Bf2 e3+ Be4 Ba3 Ba7 Bb4 Bg3 Ba3 Bd4 Bb4 Bg6 Bc5 Rb2 e2 Kf4 e1Q Rbe2+ Qe4+ Kg5 Qd2+ Be3 Qc6 Ra8 Qe4 Ra5 Qed5+ Nf5 Be7 Rab5 Rc8 Qe8 Rc6 h8R Qh1 Rh7 Qb1 Qh8 Bf8 Kh5 Qba2 Ra5 Qe4 Ne7 Rb6 Neg8 Be7 Ng4 Kd5 N4f6+ Kc6 Rb5 Bb4 Re5 Qed5 Bhf4 Q2d3 Kg5 Qc3 Rh4 Qcd2 Qh5 Bc5 Bb1 Bb4 Kg6 Ra6 Bh6 Bc5 Rb4 Rb6 Be4 Kb7 Kh7 Ka8 Bf5 Nb7 Bc2 Re6 Bg6 Bf8 Rb6 Bce7 Rb5 Nd6 Rb4 Q2d3 Rb7 Qdd2
1Q4b1/2p1nR1R/3P1NbB/rN2KpR1/1b2R2n/4qB2/1qQB1q1k/Br4R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kd6 Ke4 g5 h4 a5 b4 g4 d4 a4 b6 a3 h6 g3 b7 f3 b5 f6 b6 a2 h5 g2 h7 f2 h6 Ra3 Qc2 Rf3 Nc3 Be7 Nb5+ Kd7 d6 Ke6 d7 Qe8 d8B Qh5 d5+ Kd7 d6 Ke6 Nh3 g1Q Bd2 Rb3 Bg2 f1B Bf3 Ra3 Nf2 Qhh2 Ng4 Nc6 b8Q Qhf2 b7 Nd4 Rh5 Nf5 Rg5 Nh4 Kf4 f5 e4 Be2 e5 Ra5 Nf6 Qge1 Rb1 a1Q Rc1 Qb2 Rb1 Qh1 Rbg1 Bf8 Be7 Bg7 Bf8 Ne7 Qa4 Qh3 Qc2 Rg8 h8R Bc4 Rh7 Bh8 Rf7 Bd7 h7 Be8 Bh6 Bg7 h8B Bd5 Rf8 Bg6 Rf7 Rd8 Qa8 Ba2 b8R Re8 Rd8 Rg8 Rd7 Rb8 Qa7 Rb6 Qb8 Bc4 Ne4 Kd5 e6 Bc3 Be5 Bb4 Beg7 Ng8 e7 Rb7 e8R Ne7 Na7 Rb6 Nf6+ Kd4 Rff8 Bg8 Rf7 Rc6 Qc1 Qc3 Rff8 Nc8 Nh5+ Kd3 Nb5 Qb3 Ba1 Qb2 Rh7 Rc3 Re5 Ne7 Rff7 Rc6 Qd1 Rc1 Re4 Rb1 Qc1 Qc2 Ke5 Qb2+ Ke6 Qhg3 Bg2 Qge3 Qc2+ Ke2 Nf6 Nd5 Bh1 Ne7 R1g3 Kf1 Bf3 Qg2 R3g4 Kg1 Rg3 Kh2 R3g4 Qbb3+ Ke5 Qgf2 Rg1 Qb2+
bn1n4/1p4R1/2Qq1BB1/1N1B1p1N/4r2r/3NPkrN/Q2B1b1b/RB1q1K2 w - - 0 1 illegal: Other
1bNrQ3/PQ4R1/2bq2Np/1qr1nR2/R1RQBpkr/q3Q3/nR6/B5K1 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 g4 c5 d4 f5 e4 b5 a4 b3 a5 b2 d6 Ke6 d5+ Kf7 d7 Kg6 a6 h6 e6 f4 e7 c4 e8Q+ Kh7 e5 c3 g6+ Kg7 g5 b4 a7 c2 e6 b3 e7 Na6 d6 Nb8 Qf3 Qc7 d8R Bd7 Bd3 Bc8 d7 Nf6 Nd2 b1R Bb2 c1Q Be4 Q7c6 Rh5 Q6c3 Ra4 Rg8 Ba1 b2 Nc4 Qa3 Nd6 Ba6 Rc8 Qc6 d8Q Rc1 Qb3 b1Q Nf3 Be2 Nh4 Bf3 Qb7 Qbb5 Rc7 Qcd5 Nc8 Rc5 Kg1 Na6 Qd6 Qe6 Qd4 Nb4 Rc6 Na2 Rc7 Rf5 Rc6 Qed6 Rcc4 Kh8 g7+ Kh7 Ng6 Rc5 Rh2 Nd7 Rf2 Ne5 Rb2 Rh8 g8R Bh1 Bc2 Bc6 Be4 Bg7 Rf8 Rg8 Rf5 Rb8 Nb6 Rd8 Nc8 Bf6 Qed7 Kg7 Qdc7 Kf7 Qcb6 Ke6 e8Q+ Be7 Nh4 Rg7 g6 Rg8 Rh5 Kf6 g7 Ke6 Ng6 Kf6 Rh1 Kg5 Rh5+ Kg4 Qe3 Qd7 Rf5 Bd6 Qd4 Bb8 Qe3 Qd6 Qd4 Rf8 g8R Rf7 Rg7 Rf6 Nf8+ Rg6 Qe3 Rg5 Ng6 Rh5 Qd4 Rh4 Qe3 Rd5 Qbd4 Rc5
1B4r1/bQ2Qb2/1P1bQ2p/q2r1QRp/1n1B1Bbk/b3NR2/B4N2/2n1KB2 w - - 0 1 legal: proof: f4 b5 a4 d5 axb5 e5 fxe5 g6 c4 Na6 cxd5 Nb8 h4 Bd6 h5 gxh5 Ra3 Be7 Ra1 Bf8 e4 Ke7 d4 a5 g4 f5 b4 c5 b6 h6 g5 c4 d6+ Ke6 d7 c3 b5 a4 b7 c2 g6 f4 g7 a3 b6 a2 d5+ Ke7 e6 Kf6 e7 Kg5 e8Q Nc6 b8B Bb7 e5 Ra6 e6 Na5 e7 Bc6 d6 Nf6 g8B Nd5 Na3 Nb3 Nc4 Nb4 Qf3 Bd5 Qf7 Ra5 Nh3+ Kh4 e8Q Qg5 Qf5 Bf7 d8Q Rd5 d7 Bd6 Be3 c1B Bd4 Bb2 Qee6 Nc1 Qde7 Ba3 Rb1 a1B d8B B1b2 Bdc7 Ba1 Qg2 f3 Rb3 B1b2 Rg1 f2+ Kd1 Ba1 Rf3 Bc3 Ne3 Bcb2 Bd3 f1B Ke1 Be2 Nf2 Bd1 Bf1 Ba1 Bc5 Bae5 Bd4 Be2 Rf4+ Bg4 Qf3 Ra5 Qb7 Rd5 Rf3 Bg6 Bf7 Rg8 Be8 Bf7 Ba4 Bh2 Bb3 Bc5 Bf4 Bg3 Bbe5 Bd6 Ba2 Bb8 Bc7 Ba7 Bb8 Bh2 Qd8 Qe7 Qdc7 Qc5 Rg2 Qa5 Qc5 Bh3 Rg5 Bg4 Qce7 Bg3 Bfc7 Be5 Bd6 Bh8 Bh2 Be5 Bf4 Bd6
1rN5/b4nbB/r1r3KB/qR1n4/1RQ2r2/Q1Rb2k1/RBpPp3/N4B1B w - - 0 1 illegal: No possible last move
2Nrq2R/1r3BK1/B2Q2b1/Q2N4/1BB1nnp1/rR2bP1b/k1bp1R2/2B2R2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Ke3 d5 Kf4 b5 Kg5 e5+ f6 Ke6 Kg6 b3 c4 b4 h4 b2 a4 e4 h6 b3 f3 e3 a5 d4 c6 d3 f7 e2 h5 e1R h7 Ra6 c7 Rc6 h6 Qh4 a6 Be7 f8B Qh2 a7 Qf2 a8Q Rc5 Na3 b1B Nb5 b2 Qa5 Nd7 Ne2 Bg5 Rh2 Ndf6 Nd6 Qe3 Nc3 Bc2 Nd5 b1B Rf2 Rb5 c5 Ne4 c6 Rb7 Be2 Bd7 c8B Ngf6 c7 Nh5 Qdd2 Rg8 h8R Nf4+ Kh7 g6 Ra3 Ke5 Rb3 Bh3 Be6 Kd4 Nc8 Kc4 Bb4 Rd8 Kg7 Rf1 h7 Bh6+ Kf7 g5 Re8 g4 h8R Bg5 Kg7 Re1 Bf1 Rd1 Bf7 Qe2 Qe3 d2 Qeb6 Re1 Qd6 Rd1 Ra3 Re1 Ra1 Kb3 Re6 Qb5 Re7 Qe8 Re5 Nc3 Re3 Bg6 Rd3 Re3 Be2 Bc2 Bf1 Qa4 Rb1+ Ka2 Be2 Ne4 Rdb3 Rd7 Bc4 Rd3 Ncb6 Rd8 c8B Re7 B8a6 Rb7 Nc8 Rc3 Bca3 Qe8 Rbf1 Ne2 Qab6 Be3 Bc1 Nf4 Rb2+ Ka1 Qa5+ Ra3 Rb3 Ka2
3r2q1/n1Q1bR2/N5R1/1BN1B1P1/r3pp1R/R2B1QR1/K1rkbB1b/2n3b1 w - - 0 1 illegal: No possible last move, all moves rejected
5r1b/N1nk1B1N/N2n2Q1/1R1b2p1/rRB5/KN1b2P1/2qp1RR1/n2R1Q1b w - - 0 1 illegal: No possible last move, all moves rejected
r5b1/k1K1nB2/7R/N2b1Qp1/Q1Q2Q2/R1p2NP1/4Q1qB/Nbnbrn1N w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf6 h6 Bg7 hxg7 Kd7 Nf3 Ke7 Ng1 Ke8 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 e4 Kc7 d4 Kb7 b4 a5 b6 c4 b5 f3 d6 c3 d5 g5 d7 h4 Kd6 f4 e5 h3 e6 h2 e7 a4 e8N f2 Ra3 f3 Bf4 Rh5 Nf6 Rh3 Nh5 Nc6 Qe2 Ra7 Ng3 Ka8 b7+ Kb8 Nd2 Nh6 g8Q Ne7 Nb3 Rh4 Na1 Ng4 Be5 Qf8 d8Q Ra8 Qd7 Ka7 Qf5 Ne3 b8N Be6 Kc7 Re4 d6 Ba2 d7 Bb1 d8Q Qf6 Qdd1 Qc6+ Kd8 Qd5+ Kc7 Qa2 Rb3 a3 Qgc4 Qc2 Qdd7 a2 Ra3+ Qa4 Nc2 a1N Qdd1 Nb3 Na1 Nc1 Qdc2 Qa6 Q2a4 Nb3 Kd8 Nc1 b6+ Kb7 Bf4 Qa5 Bd6 Qd5 Kd7 Qd2 Nc6 Qb2 Bf4 Re5 Na5+ Kb8 b7 Ka7 Qe1 Re6 Bd3 f1B Qe2 f2 Nf3 Qa2 Kc7 Qd2 Rg1 h1B Be4 Re5 Bd5 Qc2 Bf7 Qe4 Qe1 Be2 Qf1 Bd1 Qfe2 Re6 Re1 f1B Be5 Bdc2 Rd1 Bb3 Rd6 Bd1 Bf4 Re5 Rh6 Qc2 Ne4 Qd2 Bh2 Qb2 g3 Qc2 Qed3 Qg2 Nf2 Bfe2 Qde4 Nf1 Qeg4 Bb3 Qge4 Bed1 Qe1 Qg1 Qee2 Bg2 Nh1 Re6 Nh4 Bd5 Nf3 Qg2 Qcd3 Bbc4 b8Q+ Ka6 Qbb4 Ka7 Qdd2 Bcb3 Qec4 Re1 Qde2 Bc6 Qcf4 Be6 Qbc4 Bcd5 Be8 Bg8 Bh5 Bh7 Bf7 Bg8
2nB1nNN/n3bB2/N7/KN2p1Q1/1R4b1/2B1rbbB/RNP1p2k/q2r1Q2 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 dxc5 h5 axb5 Rh6 gxh5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 f4+ Kf5 h4 g5 b6 d5 h6 e6 h5 d4 h7 a6 b7 d3 h6 d2 Qg4+ Kg6 f5+ Kf6 Na3 Ke5 f6 d1B f7 e3 Bc4 Qd3 Nh3 Qd4 Nf2 Nd7 b8N Ne7 c6 a5+ Ka4 Ra6 c7 Rd6 b4 Qa7 Qg1 Kf4 b5 g4 b6 g3 b7 g2 Nb5 Kg3 Nd3 e5 Bb2 Bh5 Bc3 e2 Nc6 Rg8 Qc1 g1B h8B Bh2 b8N Kg2 h7 Rg3 Qh6 Re3 Rhb1 Bg3 Rb4 Kh2 Nb2 Rd1 Qg5 Bb7 Bd5 Bg4 Bf6 Nc8 h8N Bc5 f8Q Qa8 Qe7 Nf8 Qf7 Bd6 Bd8 Qa6 Ncd4 Be7 Qf1 Ba8 Bf7 Baf3 Nf5 Qa7 Nbd6 Qa8 Kb5 Qa7 Nh6 Qa8 Bd2 a4 Ng8 a3 Be1 a2 Bd2 Qa3 Na6 Qd3+ Ka5 Qa3+ Na4 Qc1 Nb2 Qb1 Nb5 Qc1 Bc3 Qb1 Rd4 Qc1 Rb1 a1N Rb4 Nb3+ Ka4 Rd5 Ra1 Rd1 Ra2 Nd4 Ka5 Qa1 Rc4 Nf5 Rca4 Na7 Rb4 Nd6 c8B Bh5 Bd7 Ndc8 Bh3 Bhg4
1R4K1/B4nq1/r4BB1/p1p2R1N/RR1QPr1N/b2Q4/k3rBb1/n1r1bB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Kg3 a5 Kf4 f5 Kg5 c5 Kg6 f4 e4 g3 b4 f3 h4 f2 d4 g2 b6 Bh3 b7 Qd6+ e6 Qe5 h5 Kd6 Kf7 g5 h6 g4 b5 g3 e7 Bd7 e8B Bg7 h7 Bg4 b6 Nf6 Ra4 Nfd7 Nc3 Qg5 Be3 Nc6 b8R Ra6 b7 Bh3 Nf3 g1B Nh4 g2 Qd3 Qh6 Ne2 Nb4 Ng3 Nc2 Nh5 Na1 Rh2 Kc7 d6+ Kb6 d5 Bb2 Rh1 Rg8 h8Q Ba3 Qhd4 Rg4 Rh2 Rf4+ Kg8 Ne5 d7 Nf7 d6 Kc6 d8R+ Kb6 Be2 f1R d7 Re1 Bf1 Re2 Bf2 Kc6 Rh1 Bh2 Rg1 Bg3 Rh1 g1R Rb4 Nh8 Bg6 Bg2 Rf8 Nf7 Rh3 Rh1 d8B Rg1 Bf6 Rh1 Be3 Be1 Bf2 Rg1 Rc4 Kb5 Rf3 Rg4 Rf5 Rf4 Rfd8 Bab4 Rd6 Ka4 Rb6 Rh1 Qb1 Ka3 Qbd3+ Ka2 Rb5 Ba3 Ra4 Rg1 Rbb4 Nd8 Ra8 Nf7 b8B Rh1 Ba7 Rh3 Qb5 Rc3 Qbd3 Rc1 Rab8 Qg7+
1n6/R1r3r1/NB2QRPp/bn1p1R2/4bR1R/2b1Q1nB/B3N1qb/K3k2B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 e5 c4 a5 Kc2 h6 Kb2 a4 f4 d3 g4 e4 b6 e3 f6 Kg6 b7 e2 b5 e1B f5+ Kf7 c5 d2 c6 d6 g6+ Ke8 f7+ Ke7 g7 Kf6 b6 Kg5 f6 Kf4 c7 Kg3 g5 Kf2 g6 Bd7 c8B Be6 Qb3 Bd5 Rh4 Ra7 Bch3 Bc6 Ne2 Bf3 Na3 Be7 f8R Bh5 f7 Qd7 Nc2 Rh7 Nb4 Qc6 Qe6 Qg2 Na6 Nf6 g8B d1N+ Ka2 Bb4 Be3+ Ke1 Bd4 a3 Qe3 Qe4 Bfg2 Ba5 Bh1 Qg2 Kb1 Ne4 Ra2 Bg5 Ka1 Rg7 Rf4 Nc6 b8Q Ndc3 b7 Nb5 Qe8 Bf3 b8R Ng3 Bb6 Be4 Qe6 Rc7 Ra8 Bh4 Ra7 Nb8 Rb2 a2 Rb4 Bg5 Rh4 Bc2 Rbf4 Be4 Rc8 Be7 f8R Bd8 R8f5 Bg5 Kb2 a1B+ Ka2 Bgf6 Rf8 Bfe5 R8f6 Bad4 Qa3 Bg1 Qe3 Bec3 Bf7 Bh2 Bg8 Bcb4 Ka1 Bd2 Qe5 Bdb4 Ba2 d5 Qe6 Bc3+
1b6/1n2brNB/1bbQ2pp/2q1PB2/N2rBQ1N/k2N4/1R5R/n2r1NBK w - - 0 1 illegal: No proof kernel
6BQ/k1n1r2B/nn2bp2/3q3N/p3NBR1/b2n1rN1/N1RKP3/QBr1N3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 b4 a5 g4 c5 d6 h5 b6 Kc6 b5+ Kb7 g6 h4 g5 f6 d5 c4 d7 h3 d6 h2 g7 a4 g6 c3 Bg2+ f3 Nd2 c2 Ne4 f2+ Kd2 f1R Nf3 Rh7 Ng3 Rg1 Ra2 Ne7 g8B Na6 g7 Rh5 Ne1+ Nc6 Be4 Rh8 Bgh7 Nc7 g8B Qe7 d8Q Qe8 d7 Rg2 Rg1 Kb8 b7 Ka7 b8N h1N Na6 Nf2 Nb4 Qf7 Bef5 Nh3 b6+ Kb7 Qe8 Ra7 d8N+ Kb8 b7 Rf2 Be4 Nf4 Ne6 Rf3 Ng7 Nfd5 N7h5 Nb6 Rb2 Qb3 Na2 Ba3 Rg2 Nb4 Qd8 Ra5 Beg6 Ka7 b8N Ra6 Nd7 Qd5+ Bd3 Ra5 Nc5 Be6 Nce4 Nba6 Ng7 Be7 Bf7 Qa8 N3f5 Rh3 Kc3 Bd5 Rg4 Re8 Bf4 c1N Kd2 Rc5 Nh5 Rf3 Nfg3 Be6 Bc2 Nd3 Qa1 Qb7 Bb1 Rc1 Rc2 Ba3 Qc8 Re7 Qh8 Qa8 Bfg8 Qd5
K3B2n/1rk1NqrB/B2Np1B1/R5BQ/Pp6/1b2n2r/2NNb1r1/RQ4b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 h5 Kd3 b5 Ke4 d6 Kd5 Kd7 f4 b3 c4 b2 a4 h4 g4 h3 g6 b4 c6+ Kc7 f6 h2 g7 Bb7 f7 Ra7 f5 Na6 f6 Qa8 g5 Qc8 g6 Rh6 c5 Kd8 Nf3 Rh5+ Bg5 Rh8 Bd3 Rh7 Na3 b1B Nd2 Ba8 Nc2 Rh3 Qh5 Nh6 g8B Qb7 g7 Kc7 Bg6 Rg3 Re1 h1R Re5 Rhh3 B8h7 Rg2 g8B Bg7 f8Q Nf7 Rf5 Nh8 f7 Bd4 Qfh6 Bf2 f8N Bg1 B8f7 Ba2+ Nb3 Qb5 Be8 Rb7 Qg7 Qf1 Qb2 Qf4 Qb1 Qf1 Nd7 Qf4 Nb6 Qf2 Nc8 e6+ Kc4 Qf3 Ne7 Qf2 Re5 Qf7 Rf5 Bh2 Kd4 d5 Nd2 Bc4 Re5 Bb3 Rf5 Bg1+ Ke5 Kb8 Kd6 d4 Rd5 d3 c7+ Ka7 c8B Kb8 Kc6 Nc7 Re5 Nd5 Rf5 Ne3 Re5 Ra7+ Kb6 Rd7 Ba6 Bf3 c6 Be2 Ra5 Ra7 Ne4 d2 c7+ Ka8 c8N Kb8 Ncd6 d1R Nd2 Rc7 Bad3 Rb7+ Ka6 Kc7 Bdb5 Rb6+ Ka7 Rb7+ Ka8 Rf1 Ba6 Rf6 Be4 Rg6 Bed3 Rg8 Bdg6 Rg7
1NR5/5BR1/1r1p3p/r5r1/2B1bP2/N1RbR1rk/K1Q1Q2b/BB1nqn1R w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 e5 Kc2 a5 Kb3 e4 f4 a4+ Ka2 e3 g4 d6 b4 e2 g6+ Kf6 c5 e1R b6 a3 c6 h6 b5 d3 g7 d2 c7 Ra7 g5+ Ke7 g6 Kf6 b7 Na6 b8Q Qe8 b6 Bb7 c8R Be7 Qe2 d1B Nf3 Nc5 Nd4 Nb3 Rc3 Bc2 Qc7 Ra6 Nc6 Nd2 Nb8 Bbe4 b7 Rb6 Bb2 Bcd3 Rh3 Bd8 Re3 Ne7 g8B Nd5 Bf7 Rg8 g7 Rd1 Bg2 Rg1 Bh3 Nf1 Qc6 Rh8 g8B Rg3 Qa4 Rh7 Qac2 Rhg7 Bg4 Bc7 Bgh5 R7g5 Bhg6 Ne7 Bc4 Nd5 B8f7 Qe6 Na6 Qe8 b8R Qe7 Rh8 Bb8 Bh7 Ba7 Nb8 Qe5 Rg8 Qe7 Rf3 Nde3 Rg7 Nd1 Re3 Rb5 Rf3 Bg1 Re3 Ra5 Kb3 a2 Na3 Qe8 Rc1 a1R Bhg6 Rb1 Ka2 Bh2 Ba1 Rb6 Rb1 Ke7 f6+ Kd8 Bg8 Qe6 f7 Ke7 B8h7 Kf6 f8R+ Qf7 Rc8 Qe6 Bg8 Qe5 B6f7 Kf5 Rc1 Bf3 Bh7+ Kg4 Be4 Kh3 Beg6 Bfe4 Rb1 Nf2 Re1 Nd1 Bh7 Nd2 Rh1 Nf1 Qed2 Bb7 Qb2 Rd5 Re1 Be2 Bb1 Ra5 Qbc2 Bd3 Qf2 Qe2 Qf3 Qd2 Re3 Qe1 Qfe2 Bbe4
b1Rr1Q1N/3Q1Rb1/P5Q1/rB5R/n5p1/1Q1b1pn1/K1Rrkq1N/1R2B1b1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 Kc2 g5 Kb3 b5 h4 f5 a4 c4+ Ka2 c3 e4 g4 a5 f4 h6 f3 h5 c2 a6 Nf6 d6 Kc6 e6 Ra7 h7 Rg8 h8Q Qe7 h6 Qc7 e7 Rg5 e8Q+ Qd7 e5 Kd5 e6 Ke4 e7 Qc6 h7 Re5 d7 Bh6 d8Q Nh5 d5 Ra8 d6 Bg7 d7 Qc5 Nd2+ Ke3 Rh2 Ng3 Nh3 Bb7 Nf4 Qa7 Bb2 c1B Qg6 Bc6 e8R b3+ Ka3 Be4 Qf8 Bb7 h8R b4+ Ka4 Be4 Bc3 b2 Kb3 b1B Bb5 Bbd3 Rb1 Qc5 Ka2 b3+ Ka1 b2+ Ka2 Rd5 R8h5 Qb6 Qde7 Qa7 d8R Nd7 Bb4 Nc5 Qb3 Na4 Rd7 Rd8 Rb7 Re5 Qd7 Bc6 Rc7 Ba8 Rc8 Qb6 Re7 Qd4 Rf7 Rd5 Ng2+ Ke2 Nf1 Qf2 Be1 Be3 Nh4 Rc5 Rg2 Rc2 Nh2 Rd2 Qgc6 Bc5 Ng6 Bb6 Nh8 Bc5 Rc1 b1R+ Rc2 Bcd4 Qg6 Rc1 Rb2 Rc5 Rg1 Qg2 Rf1 Bg1 Rc2 Rg5 Bf2 Rc5 Rb1 Qf1 Be1 Qf2 Bc4 Ra5 Bb5 Bc3 Qc4 Be5 Qb3 Bg7
RB6/1R1QnN2/p7/2q1Qp2/N1r1n1bK/2BN1B2/rb1bBPn1/3B1Nbk w - - 0 1 illegal: No possible last move, all moves rejected
n6B/rB1B1bp1/7k/4Qr1N/q6Q/KRrp2QB/b1QPR3/n1Q2rNn w - - 0 1 illegal: No possible last move, all moves rejected
2N2bQN/RBN3pn/R2N1Q1P/p1N4R/2qr1B2/r2R1b2/5n2/1kbrrK2 w - - 0 1 illegal: No possible last move, all moves rejected
1N3qR1/n2b1p1B/n2r2p1/kPN1B2N/1b2n1Qn/Bbr2B1K/1NR5/5Q1N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 a5 h4 c5 e4 Kc7 b4 Kb6 d4 a4 e5 c4 h6 a3 h7 a2 h5 c3 d6 c2 h6 Bd7 d5 Be7 e6 f3+ Kh3 f2 Na3 Qc8 Nc4+ Ka7 b6+ Ka6 b7 Bf6 b5+ Ka7 Rh2 Qc6 Ba3 c1N Ne2 Qc8 Nb2 Kb6 Ng3 Nb3 Bd3 Bg5 Qg4 Qd8 e7 Nc5 e8B Qe7 Nh1 Bc6 d7 Ka5 d8N Nf6 d6 Qf8 d7 Nfe4 Ne6 Bd2 d8N Nca6 Nf4 Bb4 Nh5 Bd7 Ne6 Nc6 b8N Na7 Rg1 a1N Nc5 f1B+ Rhg2 Rg8 h8Q Nb3 h7 Nd4 Bb1 Bc4 Rc2 Nf5 Rg3 Bc8 Bc6 Nh4 Rgg2 Bd7 Bd5 Nc3 Bf3 Ne4 Rg3 Bb3 Rgg2 Qd8 Rg1 Rf8 Qg8 Qe7 h8B Rc8 Qh7 Rc7 Qhf5 Qf8 Qff4 Rc8 Qc1 Rc6 Qf1 Rd6 Rcg2 Nd2 Bh7 Ne4 Rc2 g6 Be5 Nc8 Rgg2 Ra7 Rgd2 Rc7 Rd1 Na7 Rd4 Rb6 Rd6 Rc8 Re6 Rd6 Re8 Qg7 Rg8 Qf8 Ncd3 Rc4 Nc5 Rc3
QnQb3n/2PR1N2/BK5N/r6b/1bN1Bq2/p1B1B1k1/1pN1n3/3NrR1b w - - 0 1 illegal: No proof kernel
1n4Q1/b1P3n1/Rp1KbBkr/3B3R/1n1b3r/4BR1R/1pq2NB1/1BNQ3b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 d5 Kd4 g5 Ke5 b6 f4 e6 a4 b3 c4 d4 h4 d3 a5 g4 c6 g3 c7 d2 h6 g2 a6 b2 c5 Bd7 c8B Bc6 a7 Qe7 h7 Qg5 h5 Bd7 h6 Qg3 c6 Qe1+ Ne2 g1N f6 Ne7 f5 Qh4 Bg2 Qf2 Rh3 Nd5 Ra6 Nb4 Nbc3 Bg7 Kd6 e5 Ne4 Be6 Rh5 Nh3 Bd7 Rf8 h8B Nf4 h7 Rg8 Rh3 Nh5 Bc8 Bh6 Bg7 Be3 h8R Bd4 Rh6 Re8 Bh8 Ng7 R6h5 Qg1 Bd7 Qh2 Nf2 Rg8 Bd5 Qg2 Bc8 e4 Bb7 e3 Ba2 Nd7 Bb1 Raf8 a8B Nb8 Qh1 d1B Qe1 Ba4 Qd1 Bc2 Bd2 Bd3 Nc1 e2 Be3 e1B Ra3 Re8 Ra6 Kf8 f7 Be4 Kc7 Ke7 f8R Qg6 Rf6 Bh1 Rf8 Rd8 Rf7+ Ke8 f6 Rc8+ Kd6 Qc2 Rd7 Bd2 Rd8+ Kf7 Rf8+ Kg6 f7 Bg4 Re8 Rc7 f8Q Be6 Re7 Be1 Rf7 Re7 Qd8 Rf8 Rff3 Rf4 Qg8 Rh4 Rd5 Rh6 Rdh5 Rf7 Bc8 Rf4 Bab7 Bb3 Be6 Rh4 Bc4 Ba2 Bf1 Bf7 Bg2 Bec3 Bc8 Be1 Be6 Bd2 Bea2 Be6 Bd5 Nd7 Bg5 Bf4+ Ke7 Bb8 c7 Ba7 Be3 Nb8 Kd6 Bf7 Qf8 Ne6 Bf6 Ng7 Qg8 Be6
bNR1r3/P3b3/R4RnK/n4r2/2NkbBbQ/5QQ1/q1p1Bp2/4RQQr w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg3 c5 Kf4 f5 Kg5 b5 a4 g6 d4 b3 h4 f4 e4 c4 h6 f3 e6 Kd6+ e7 f2 e5+ Kd7 a5 b2 h7 b4 a6 c3 h5 c2 a7 b3 e6+ Kd6 h6 Qb6 e8R Bb7 e7 Na6 Ne2 Qc5 Nd2 b1B Nc4+ Kc7 Rc8+ Kd7 e8R b2 Bf4 Nb8 Re6 Nc6 Rf6 Nge7 Ra6 Qa3 d6 Ba2 d5 b1B Nd4 Na5 Qf3 Rb8 Bd3 Ba8 Nc6 Rb5 Be2 Bb3 Rc1 B1a2 Re1 Rg8 h8Q Rc5 Kh4 g5+ Kh5 g4 h7 g3 Qg7 g2 h8Q g1R Qgg3 Ng6 Qg7+ Be7 Kh6 Re8 Qg8 Nh4 Q8g5 Rh1 Qg1 Ba4 Q5g3 Bb5 Nb2 Bd3 Nc4 Bb3 Qf1 Qa2 Qgg1 Rd8 Qfg3 Be4 Nb8+ Ke8 Rg6 Kf7 d7 Rg8 d8Q Re8 d6 Rf5 d7 Ba4 Qb6 Bb5 d8Q Bd7 Qb7 Be6 Rg4 Kf6 Qbb3 Ng6+ Rh4 Bac6 Qbf3 Bed7 Rh5 Ke6 Rh4 Kd5 Rh5 Kd4 Rh2 Ba3 Qdh4 Be7 Kh7 Ba8 Qhg4 Rg5 Rh6 Nh4+ Rhg6 Be6 Kh6 Rb5 Qh5 Bg4 Rgf6 Ng6 Qhh4 Rf5
1b2N3/1Q2r1qk/4qBN1/2RB1nnN/7N/3q1br1/P1pKQRNp/B1B2q2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 g4 Kg7 f4 h5 d6 e5 d7 b5 d5 c5 d6 e4 f6+ Kg6 f7 h4 f5+ Kh7 f6 h3 Rh2 c4 Bg2 c3 Qe2 b3 Na3 b4 Nc4 e3 g6+ Kh6 g7 b2 g5+ Kg6 Nf3 b1Q Nh4+ Kh7 Bd5 b3 Rf2 Qb6 d8Q b2 d7 h2 Qe7 Qc7 d8B Nh6 g8N Bb7 Qd7 Bc5 f8B+ Nf7 Bg7 Ba7 Qc8 Bc6 Qb7 Qd3 Be7 b1Q Bd8 Nh6 f7 Na6 Bdf6 Qbb6 Rb1 c2 Rb5 Nf5 Rc5 Re8 Ba1 Bb8 Bgc3 Re7 Nf6+ Kg7 f8N Rg8 g6 Qe5 B3b2 Nc7 Nh5+ Kh6 g7 Ne6 Bd4 Ng5 Nfg6 Kh7 Bdb2 Qbc7 Bd4 Qe6 Bf6 Rf8 g8N Qce5 Nh6 Rg8 Nd6 Qb2 Ng2 Qbd4 Bc4 Bf3 Bd5 Rgg7 Ne8 Qde5 Ng4 Qb2 N2h4 Qbc3+ Qd2 e2 Ne3 Rg8 Bh8 Qg7 Neg2 Qb5 Qd1 Qbd7 Kd2 e1Q+ Kd3 Qf1+ Kd2 Qgf7 Bhf6 Qg7 Qe2 Qb5 Kc3 Qd3+ Kb2 Qf8 Ne5 Rgg7 Be4 Nf7 Bd5 Rg3 Neg6 Qdd1 Kc3 Qg7 Qc4 Qde2 Qd3 Q2e4 Qe2 Ng5 Kd2 Qd3+
1K3R2/1N6/R2nRb2/B4R1Q/bq1kPQ1b/Q1r3p1/1rp3q1/bN1nQQ1B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 f5 Kf4 c5 b4 a5 h4 a4 d4 g6 e4 a3 h5 c4 e6+ Kd6 h6 g3 b6 g2 h7 c3 e7 a2 e8R c2 b7 Ra7 b5 Ra8 b6 Ra5 Rh5 Qc7 Qe1 Ne7 Ne2 g1B Nec3 Ng8 Na4 Ra6 Bg2 Qe7 Nc5 Bg7 Bh1 Ra3 Bd2 Bf2 Ba5 Na6 b8Q+ Nc7 b7 Rc3 Qa7 Nh6 b8Q Bd7 Qa6+ Bc6 Qaf1 Ba4 Rg5 Rf8 h8Q Ng4 Qh5 Ne3 Qb2 Rg8 Qa3 Nd1 Rf8 Bf6 Nb7+ Kd7 d6 Ke6 d7 Ne8 d8R Bh4 Ra8 Qb4 Ra6+ Nd6 Rb6 Rg7 Rc6 Rc7 Rb6 Rb3 Ra6 Rb2 d5+ Kd7 Rb6 Rc3 Ra6 Nc8 d6 Ke6 d7+ Nd6 d8Q Bd4 Nd2 Bf6 Rb1 a1B Qb6 Be8 Qbe3 Ba4 Kf3 f4 Rf5 g5 Kg4 f3 Qf4 Ra2 Rb2 f2 Nb1 Qc4 Rbb6 Rb2 Qfe3 Qd4 Kf3 g4+ Kf4 g3 Q3d2 Qb4 Qc1 Be7 Qce3 Kd7 Ke5 Beg5 Kd5 Bf6 Qf4 Ke7 Qg1 f1Q Rc6 Qg2 Qgf1 Bb5 Rcb6 Bc4+ Kc6 Ke6 Kc7 Bb5+ Kb8 Ba4 Qfg4 Bhg5 Rf2+ Ke5 Rf5+ Kd4 Qgf4 Bh4 Rc6 Nc4 Re6 Nd6
b2NB1q1/R1r2BB1/nR1q4/qr3R1n/1BPKpR2/3Q4/q4p2/kNQ3bR w - - 0 1 illegal: No proof kernel
r1rBNn2/1r4Q1/1qB2BB1/1N1r3K/p1pN3b/N4RN1/P1Qqb3/1R1nk3 w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 h5 g4 Kf7 gxh5 Ke8 bxc5 d5 c4 dxc4 Ke2 Kd7 Kf3 Kc6 Kg4 Kb5 d4 Kb4 f4 e5 h4 g5 d5 b5 h6 a5 h5 a4 d6 e4 c6 e3 h7 e2 d7 e1R f6 Re5 f7 Qe7 c7 Re6 d8B Re2+ f5 Qc5 h6 Rb2 Na3 Kc3 Ne2+ Kb4 Rb1 Bd6 f8Q Nd7 f6 Qd5 f7 Qd2 Kh5 g4 Ng3 Kc3 Bd3 b4 Rh3 b3 Bg6 Be7 Qg7+ Bf6 f8N Ne7 Qe2 Nf5 Ne6 Ne3 Nd4 Nd1 Qh2 Re8 h8N Nf8 h7 Bh4 Nf7 Be6 Bf6 Rec8 h8N Bd5 Qe2 Bf3 Nd6 Rc2 Qf2 b2 Ne8 Be2 Bd8 Bf6 Nf7 Bh4 Ndf5+ Kd3 N7d6 Rc3 Bf6 Rb3 Qg2 Rb7 Nd4+ Ke3 Qe4+ Kf2 N6b5 Ke1 Bd8 Qc2 Bcg5 Qd2 Na7 Rb5 Qc2 Rf5 N7b5 Rd5 Ra1 b1R Bf6 Rcb8 c8B Rb4 Bb7 Rc8 Rb1 Rb2 Nh1 Rb3 Rf3 g3 Bd8 g2 Bc6 g1Q Ng3 Rb2 Na7 Rb7 N7b5 Qa5 Bf6 Qb6 Bd8 Qe3 Bf6 Qd2 Bd8 Rdd7 Bgf6 Rd5+
qrN1R1B1/b1K2QR1/2N5/1B1rQpn1/q2P1rk1/4B2p/2NB1r2/n1Bb3N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Ke7 Bd2 h5 Kf2 a5 Kf3 c5 Ke4 f6 g4 a4 b4 f5+ Ke5 c4 e4 c3 d6+ Kf7 d7 Rh7 g6+ Kg7 g5 c2 Qe2 c1R Na3 Rc6 Nh3 Ba6 Rg1 f3 Nf2 Ne7 Nh1 Qa5 d8N Rd6 Re1 h4 Bc1 h3 Nc6 Qd8 b6 f2 b7 Nc8 b5 Rf6 b6 Rh4 Rg3 Kg8 g7 Kh7 g8N Rf4 Nge7 Rd6 g6+ Kh6 g7 Rd5+ Ke6 Bc4 g8B Nd6 e5 Bb3 Rg7 Nd7 Qe4 Kh5 Bb5 Qb8 Nc8 Bd1 Nc2 f1R Re3 a3 Re2 Qa7 b8B a2 b7 a1Q Bc7 R4f3 b8B Q1a4 Ba5 R1f2 Bad2 Nf7 Bc7 Bc5 Bd8 Rg3 B8g5 Rb8 Bgf4 Bb6 Ke7 Re3 e6 Ref3 Ke8 Q7a6 e7 Ng5 Re3 Bc5 Kd8 Qa8 e8Q+ Kg4 Qf7 Ba7 Kc7 Nc5 Qee8 Nb3 Re7 Na1 Bfe3 Be2 Re6 Rf4 Qee7 Kf3 Qd6 Bd1 Re8 Kg4 Qde7 Rf1 Qe5 R1f2
n3r1rR/KN1R4/1R4QP/4k1p1/2bNpRR1/b1b1Bqq1/Q4n2/Q1bB3Q w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 g5 Kc5 e5+ d6 a5 f4 a4 b4 g3 d4 a3 h4 c6 d5 g2 h5 e4 b6 a2 b5 Ra6 b7 Rh7 b6 Rh8 Nd2 Be6 Ngf3 g1B+ Nd4 Rh7 Be2 Nh6 Nc4 Rd7 Na5 Bf7 Be3 Re7 d7 Bg6 d6 Qc8 d8R Rc7 Rd7 Nf7 h6 Qe8 Rb1 a1B Rh4 Ra7 Rg4 Bh2 Qh1 Ne5 Bd1 Bc3 Rb2 Be7 Rb1 Qf8 Rb4 Kf7 f6 Ra8 f5 Rc8 Rb2 Bf4 Rb1 Kg8 f7+ Kh7 f6 Re8 Rb4 Bf5 Rb3 Kg6 Rb5 Be6 Rb4 Qg7 f8Q Bc4 f7 Kf6 Qg8 Qg6 Qh7 Qh5 f8R+ Qf7 Rh8 Qh5 Rb5 Qh4 Rb2 Qg3 Rf2 Bf8 Re7 Qf3 d7 Qg3 d8Q Nbd7+ Kd6 c5 Kc7 Qf3 b8Q Nd3+ Kb7 Qg3 Rf1 Nf2 Qa7 Qf3 Rg7+ Ke5 Qg6 Be7 Rf7 Rg8 Qf8 Re8 Qa6 Qg3 Ka7 Qf3 b7 Nb6 b8R Na8 Rb6 Bd6 Bd2 Be3 Nb7 Qg3 Be1 Bc1 Qa2 Nh3 Qb2 Bf4 Qe2 Be6 Qeg2 c4 Qgh2 Bcb4 Bf3 c3 Be2 c2 Rd7 c1Q Bd2 Bc3 Qe7 Be3 Rff4 Qf1 Bd1 Qff3 Qe2 Nf2 Qa6 Qe2 Qef7 Qef3 Qa1 Ba3 Bc1 Ba2 Qb3 Bed2 Qbb2 Bc4 Qba2 Be1 Be3 Bed2 Qf7 Bdc1 Qfh5 Rg7 Qg6 Rgg8
3N1r1R/1Q1RB3/r2PrN2/Nq2r1Rb/1p1q1bR1/3k1p2/1Kn4R/nBQN4 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 h4 c5 d4 g5 Kd2 b5 Kc2 f5 e4 f4 d6 Ke6 d5+ Kd7 e6+ Ke8 h6 g4 e7 Kf7 e8N Kg6 a5 c4 h7 b3+ Kb2 g3 e5 Kf5 d7 Ke4 d6 f3 e6 b4 h5 g2 a6 Nh6 a7 Qe7 d8N Qb7 e7 Ng4 h6 Bf5 Rh4 Na6 Nh3 g1Q Ra5 Bg6 Na3 Nc5 Bg5 Bh5 Qc1 Qb5 Nf6+ Kd4 e8R c3+ Kb1 c2+ Kb2 Bg7 Re7 Rf8 h8R Qf2 h7 Bh6 Bd3 Qg1 Qf1 c1R Bb1 Re1 Rd7 Re6 Nf2 Re5 Rh2 Ne3 Rg8 Nc2 h8R Re6 Bh4 Bf4 Nd1 Qf2 Qe1 Kd3 Nc4 Qg1 Rg4 Qd4+ Nc3 Re5 Qc1 Re6 Nc6 Rae8 a8Q Re5 Qb7 Ra8 Ne8 Ra6 Be7 Re6 Nd8 Re5 Ba2 Re6 Nf6 Re5 Kb1 b2 Nd1 Nb3 Nce3 Nba1 Nc4 Qa4 Rb5 Re6 Rbg5 Qb5 Na5 Re5 Bg8 Re6 Ka2 b1R Bh7+ Qe4 Bf5 Rb3 Bg6 Ra3+ Kb2 Rc3 Bf7 Qd4 Bg8 Re5 Ba2 Re6 Bb1 Rc5+ Ka2 Qdc4+ Kb2 Rce5 Rg3 Qe4 R3g4 Qd4+
1r4b1/3R1R1R/pb2QPK1/2n1q2N/1RQN1Bbq/2B1r3/1nR1p1B1/1k3bB1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 f4 c5 g4 h5 f6 e5 f5 a6 b6 h3 f7 h4 f6 c4 b7 c3 d6 h2 d7 h3 Kf5 e4 d5 c2 g5 Kb3 g6 e3 d6 e2 g7 Rh6 Nc3 Qe8 Nd5 Be7 f8R Nc6 b8R+ Bb7 d8R Rh4 d7 Na5 Bf4 Bc5 Ra2 Qe5+ Kg6 Nh6 g8Q Nc4 Bg2 Nf5 Qd4 c1Q Nf3 Kc2 b4+ Nb2 b5 Nd6 b6 Qe1 Qc4+ Kb1 Qe6 Ne4 Rf7 Bc8 b7 Bb6 Nd4 Nc5 Be3 Rh8 Nf4 Re8 Bg1 Qh4 Nh5 Re7 Rh8 Re8 d8B Re7 Rhh7 Re8 Qe7 Bg4 Qee6 Re7 Bc7 Re8 Rd8 Rb8 Rd5 Qe3 Bg3 Qe5 Be1 Re7 Rd7 Ree8 Bgf2 Re7 Rf1 h1B Bg1 h2 Rf4 Ree8 Bc3 Re7 Bh3 Bd5 Bg2 h1B Re4 Nd1 Rc2 Nb2 Bh3 Bg2 Rf4 Rf8 b8B Bf1 Bc7 Rb8 Bg2 Qe3 Qc6 Re4 Qe6 Qeg3 Bd6 Re3 Re4 Qgh2 Bf4 Q2g3 Bg5 Qc7 Bf4 Qe5 Qd3 Rd8 Nf3 Re8 Qc6 Qd6 Rfg7 Re6 Rb4 Qe5 Nd4 Re8 Qc4 Bg8 Rgf7 Ra8 Q6e6 Rb8
4kb1r/1Qq1pN1q/1b2Q1Br/5R1Q/2bRNnn1/P2Nb2p/1NKB4/3Q1Q2 w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 f4 b5 d4 h5 Kd2 c5 g4 b4 d6 c4 g6 b3 d5 h4 g5 h3 a6 b2 a7 e3+ Kc2 c3 g7 e2 g6 e1B f5 Rh5 a3 Nf6 g8N Be6 g7 Qb6 d7+ Kf7 d8N+ Ke8 d6 Ng4 f6 Bd7 Nf3 Bg3 Ne1 Rg5 Bd2 Nf2 Bd3 Ne4 Nf7 Qa6 Rf1 Qb7 Qh5 Bh2 Rf5 Nc6 Ra2 Rc8 a8Q Qc7 Qb7 Ng3 Be4 Be6 Nd3 Bc4 Ra1 Kd7 Ra2 Ke6 d7 Bg1 d8Q Bb6 Qd4 Rg4 Qg1 Kd7 Qd1 Rd8 Rc5 Rg6 Nf4 Bd3+ Kb3 c2 Ng5 Be2 f7 Bg4 Be1+ Rd6 Nh6 c1B g8Q Ne2 Nd2 Be6+ Nc4 Bg7 f8Q b1Q+ Rb2 Qa1 Rd2 Ne5 Rd4 Be3 Bd2 Ng4 Rb5 Rd5 Nb2 Qb1 Bh7 Qf5 Nfd3 Rd6+ Rbd5 Qg6 Qff1 Nf4 Ne4 Ra8 Qf7 Rh8 Qf6 Kd8 Nf7+ Ke8 Qfe5 Bf8 Qef5 Qd7 Kc2 Qc7+ Rc5 Qh6 Qf6 Bc4 Rf5 Qg7 Qe5 Rg6 Qe6 Rh6 Bg6 Qh7
R1RrbB2/q2Rp2p/NQ2N2Q/1r4q1/n5r1/1r1bPk1B/6R1/Kn2RB1B w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bd7 g5 Bh6 g6 Bg5 hxg5 Bc8 b4 Kd7 d4 Kd6 Kd2 c5 Kc3 f5 Kb2 a5 b6 a4 b5 f3 g7 c4 b7 f4 b6 f2 g6 f3 Nc3 Bg4 Ne4+ Kd7 d6 Ke6 d7 Kd5 Qd2 Qc7 d8R+ Nd7 b8Q Qe5 b7 Qg3 Nc5 Nf6 Rg8 Bh5 Qh6 Ne4 Na6 Ndc5 Nh3 Nc3 Ng5 Nb1 Ne6 Ke4 d5 Qg5 d6 a3+ Ka2 c3 d7 c2 d8R Ra7 Rd7 Na4 e3 Ra8 Bb2 c1R Rc8 Rc2 g8B Rc5 g7 Be8 Rg1 Rb5 Rg2 Rb3 Qc7 Rb8 Qb6 Rb5 Bf7 Rb3 g8B Rb5 Bc4 f1B Bg7 f2 Bf8 Bd3 Bg6+ Kf3 Bf5 f1R Bh3 Rg1 Bf7 Nd2 Re1 Nb1 Ka1 a2 Bg8 Bdg6 Bf1 Bd3 Rd2 Rg4 Rg2 Ra8 b8R Ra7 Qc5 Rab7 Ra8 Rb3 Bf7 R7b5 Qb6 Rg8 Bg6 Bf7 Bg7 Rd8 Bf8 Be8 Rge2 Nac3 Nb8 Kg3 Be4 Na4 Bh1 Nc5 Rg2+ Kf3 Nc6 Rc3 Nb4 Ra3 Kb2 a1Q+ Kc1 Bc4 Kc2 Rb3 Kc1 Qa7 Na6 R3b4 Kc2 Bd3+ Kc1 Nb3+ Kb2 Nc5+ Ka2 Na4 Ka1 Rb3
3Bn1qN/b2Pr3/1N2p2q/nKr4N/r1B1N1k1/r2BBR2/B1QpR2Q/3b4 w - - 0 1 illegal: No proof kernel
nB6/N2pQ3/npQRb1K1/4q3/qP1N2B1/Bbb1b1N1/k1N1N1B1/2rr1R2 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 f5 exf5 b6 gxh5 Nf6 a5 Qc7 a6 Qb7 axb7 Ng8 Ke2 Kf7 Kf3 e5 Kg4 a5 Kg5 d3 h4 a4 b4 g6 c4 d2 f4 a3 h6 e4 f6 Ke6 c5 Kd5 h7 a2 h5 e3 c6 e2 f5 Kc4 c7 Nh6 f7 Rg8 h8N Na6 b8B Nc5 f6 Nf5 h6 Be7 f8Q Ra3 h7 Ra7 Qa4 d1B Ba3 Ra8 Bg2 e1Q Ne2 Nd4 Rh6 Bb7 c8B Na6 Nf7 Bb3 h8N Bd5 Ng3 Be6 Bcb7 Nb5 Bbf3 Nbc7 Bg4 Qe2 Qg7 Rc8 Nd8 Bd6 f7 Be5 f8N Bc3 Qe7 Qe5+ Kh4 g5+ Kh5 Ra7 Nc6 Na8 Nhg6 Rac7 Na7 Re8 Bf5 g4 Nf4 Rcc8 Kg6 Rc6 Nh1 g3 Bg4 Rd6 Ne2 Rc8 Qf6 Rcc6 Qe7 Rc5 Qc6 Rd1 B2h3 g2 Nhg3 g1B Bg2 Bg8 Ne6 Be3 N6d4 Be6 Nd2+ Kd3 Rc1 a1Q N2f3 Kc4 Nc2 Qa2 Bb2 Qa4 Nfd4 Rd3 Rf1 Rd1 Qcd6 Rc1 Ba3 Rd5 Ndc6 Rd3 N6d4 Rdd1 Qc6+ Nc5 Qb7 Ba2 Ndb5 Kb3 Rh5 Qd6 Rd5 Qe5 Rd6 Na6 Qe4 Bb1 Nbd4+ Ka2 Ne1 Bd3 Nec2 Bdc4 Qc6 Bb3
nrb2Qqr/NQP5/B1pbk3/1BBnbN2/2QbR3/4Q2B/1R3pBq/3K4 w - - 0 1 illegal: No proof kernel
2q2kbR/1Bp5/2Nb1b1r/4pB1q/1Q2Qnn1/2b1RK1N/1QP1N2N/4rQ1N w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 e4 Ke7 e6 f6 e5 Rh7 Bf4 Rh8 Bg3 Ke8 e7 Kf7 Bf4 Ke6 Bg3 Kf5 e6 Kg5 Be5 fxe5 Ra5 Kf5 Ra1 Kf6 Ke2 a5 e8N+ Ke7 f4 g5 b4 d5 h4 g4 f5 g3 h6 d4 b6 a4 b7 g2 h5 a3 h7 a2 b5 Na6 b8Q Nf6 h6 Nb4 b6 Rg8 h8Q Qd7 b7 Nh7 f6+ Kd8 f7 Ke7 Nf3 g1B Bg2 Ra7 Nd6 Qc6 Nc3 Bf2 Nde4 Rg5 Qf1 Qb6 Ng3 Rg6 Re1 Nf6 h7 Kd6 e7 a1B e8B Ke7 Bd7 Ra2 Bf5 Be6 Rh5 Ra5 Nh1 Nbd5 Nh2 Bh4 Qa8 Ra2 b8N Qb7 Qg8 Ra7 h8N Qc8 Rh7 Rh6 Ng6+ Kd8 Nf4 Ke7 Qg3 d3+ Kf2 d2 Rh8 d1Q Nh3 Bg5 Qg4 Ra4 Qd4 Qh5 Re3 Nf4 Ne2 Ng4+ Kg3 Bc4 Bd5 Bb3 Kf3 Bf6 Qe4 Ra2 Bb7 Bc3 Qaa4 Be6 Qb5 Ra1 Qb2 Re1 Nc6+ Kd6 Qg1 B8e7 f8Q Bg8 Bg6 Kd7 Qf1 Ba3 Qc5 Ke6 Bf5+ Kf7 Qcd4 Bd6 Qdb4 Kf8
3bBQN1/pn4B1/PB1B4/1r3Q1K/R2qr1n1/1Nn5/pkq1n2Q/1BbQ2R1 w - - 0 1 illegal: No proof kernel
B5qB/pp1KbNrk/1N4r1/PqN1Q1Q1/b2N4/3qB3/Bn2RR2/n3B1q1 w - - 0 1 illegal: Other
QQ3bRR/3p1k2/2Nb1nq1/N6B/1K1Bnpbn/Q3nP2/1Q3R1r/R2n2Q1 w - - 0 1 legal: proof: e4 c5 a4 a5 g4 h5 gxh5 f5 d4 f4 Ke2 cxd4 Kd2 b5 axb5 Ra6 Ke2 Rf6 Ke1 Rf5 exf5 Rh7 Nf3 Rh6 Ng1 Rh8 Kd2 e5 c4 g5 b4 a4 h4 d3 Kc3 d2 b6 g4 c5 e4 b7 a3 c6 e3 h6 a2 b5 g3 c7 e2 b6 e1B h5 g2 h7 Bc5 h6 Ne7 f6 Nf5 f7+ Ke7 f8Q+ Ke6 Rh2 Qe8 Bb2 Nd6 Ne2 g1N Na3 Qe7 Nc4 Nf3 Na5 Qf7 Nd4+ Kf6 Be2 Na6 b8Q Nh4 b7 Ne8 Bh5 Bd6 Qa8 Nc5 b8Q Bb7 c8R Bf3 Ndc6 Bg4 f3 Bf2 Qf1 d1N+ Kb4+ Ke6 Bf6 Qg6 Bd4 Nf6 Qg1 Be3 Rf2 Bc1 Qd8 Kf7 Qdb6 Bf8 Qba6 Bd6 Rg8 Be3 Rc1 a1N Qd3 Bf8 Qa3 Bd6 Kb5 Nc2 Ra1 Bc1 Kc4 Nce3+ Kb4 Bb2 Rc8 Re8 h8Q Re5 h7 Bc3+ Kb5 Bb4 Rg8 Rd5 Bc3 Rd2 Bd4 Nfe4 Qe5 Nf6 h8R Ra2 Rf1 Rh2 Rf2 Nb7 Ka4 Bf8 Qb5 Bbd6 Qbb2 Nc5+ Kb4 Nce4+
6RB/2N1B1pq/2p4R/n4QPR/B3n1b1/1R1rQ2b/kB1qB1q1/1b1Nb2K w - - 0 1 illegal: No proof kernel
rR1B4/1nN1Q2p/2p1Qn1n/2B2q1N/2P2bb1/3Bb3/3QR1K1/kq1QBb1B w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 g5 g4 e5 dxe5 Bb7 f4 gxf4 h4 Bc8 h5 Ra6 g5 Rg6 hxg6 Bd6 Nh3 Be7 Ng1 Bf8 Kf2 Ke7 b4 Ke6 e4 f5 c4 d5 b6 f3 g7 d4 g6 f4 b5 d3 b7 a4 b6 a3 Nh3 a2 Rh2 d2 Ba3 c6 Bd3 Qf6 Nc3 Qd8 Nd5 Bd7 Bc5 Bd6 Nc7+ Ke7 e6 Kf6 e7 Ke5 e8Q+ Be6 Rb1 a1B Qd7 Na6 b8B Qg5 b7 Nh6 g8Q Bg4 g7 Bd4+ Kf1 f2 Kg2 f1N Qge8+ Qe7 g8B Ng3 Bd5 Qe6 Qee7 Be3 Bba7 Nh5 b8B Rf8 Bab6 Nf6 Ba5 Rh8 Bba7 Re8 Rb8 Rc8 B7b6 f3+ Kg3 Re8 Re2 f2 Nf4 Rc8 Nh5 Rh8 Qc2 d1Q Kg2 Qb1 Be1 Rc8 Qd1 Rf8 Bcb4 Nc5 Qd2 Kd4 e5 Qf5 e6 Bdf4 Qd1 Bd2 Ba3 Kc3 B5e4 Nb7 Bac5 Qc2 Qd4+ Kb3 Qe3 Bc1 Qed2 Ka2 Kh1 Bh2 Rd8 Qb2 Na8 Rg8 Qb4 Qg6 Qc7 Na5 e7 Bd2 e8Q Qc1 Qe6 Bf4 Qce7 Ka1 Rc8 Bde3 Qbd2 Nb7 Bd5 Bg5 Kh2 Rd8 Bh1 Qb1 Kg2 Bgf4 Ba5 Rd4 Rg8 Rd8 Rh8 Rb8 Rc8 Qg5 Bd8 Qf5 Nc7 Ra8 Rb8 f1B+
NRq1N3/rQ2b2N/6N1/B2r1RpN/1n2Qr1B/1Bq2p2/2b1bBP1/3k1K1b w - - 0 1 illegal: No possible last move, all moves rejected
R1qrn1n1/N1nB1N1n/1B5Q/2p1B1r1/3Qr1N1/p1P5/kN2Br2/N1K1b2R w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 Kd2 Kf7 e4 Ke6 f4 h5 b4 a5 b6 d5 b5 a4 f5+ Kd7 g5 h4 c3 c6 e6+ Kd6 f6 Kc5 g6 d4 e7 h3 e8B h2 f7 d3 e5 Kc4 g7 Rh5 e6 Ra6 e7 Rf5 b7 Qd5 b6 Rf2+ Be2 Qf5 Nf3 g1N Bd7 g2 e8N Bd6 f8Q Nh3 Nf6 g1R Ne1 Rg5 Nc2 Kb3 Nba3 Bg3 Nc4 c5 Ng4 Ra5 Nb2 Na6 b8B Nc7 b7 Rb5 Qd6 Rb4 Qh6 Re4 Ba7 Qf8 b8N Qc8 Nc6 a3 Bb6 Ne8 Rb1 Ka2 Na1 Nf4 Qa4 Ne6 Qd4 N6c7 Na7 Bh4 Kd1 d2 Kc2 d1R Bf4 Rd2+ Kc1 Rd3 Be5 Bg3 Rf1 h1N Re1 Bh4 Rg1 Ng3 Rh1 Ne7 g8N Nh5 Qf6 Rd2 N8h6 Ng8 Nf7 Rd3 Qh6 Nhf6 Nc4 Rd2 Rb3 Nh7 Nb2 Rf3 Rb5 Be1 Ra5 Rdd3 Nb5 Rf2 Ra8 Rdf3 Na7 Rf6 Bc6 Rd6 Ba4 Rd8 Bc6 Rff4 Bd7 Rf2
1brBr3/2r1p3/6Rn/1NBR2BB/2NpR1rq/K4Q2/4PQ1B/k1n1nR1n w - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h3 f5 Na3 Bb7 Nb1 Bf3 gxf5 g4 Nc3 g3 Nb1 Bg4 hxg4 Bg7 Rh5 Bh6 Rh1 Bf8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 d5 f4+ Ke4 f6 a5 c5 h5 g5 d3 f7 Kd4 f5 h4 f6 d2 g6 h3 c6 h2 c7 a4+ Ka3 g2 c8R Ra5 b4 Rh4 g7 Rh8 b6 Qd7 b7 Rh6 b5 Qe8 b6 Qb5 Qb3 d1R Be3+ Ke4 Bc5 Nc6 b8B Ra8 b7 Qc4 Nf3 g1R Bc7 Na5 b8B Rg4 Ne5 Rh8 Bd8 Nh6 g8R Rc1 Rg6 Bg7 Bh3 Re8 Rd1 h1N f8Q Ra7 f7 Rc7 Qg3 Nb3 Qf2 Qd4 Nc4 Be5 Rf1 Rc2 Ra2 Nc1 Rb2 Bg3 Rb4 Qf6 Rb5 Qh4 Ra5 Rb7 Rcc6 Rc7 Rce6+ Be5 Rb5 d4 Ra5 Kd5 Rb5 Bg3 Re4 Rc8 Bf4 Bh2 Bg5 Bb8 Bf4 Rc7 Bh2 Rc8 Bg2 Rc7 Bf3 Rc3+ Kb4 a3 Ra5 a2 Nba3 a1N Nb5 Nc2+ Ka4 Rg5 Bh5 Ne1 Qf3 Rc2 Ka3 Rc8 Qg7 Rg1 f8B Rg4 Qgf6 Rc7 Qf2 Rc8 Q6f3 Rc7 Ncd6 Rc8 Bg7 Rc7 Bf6 Rc8 Nf5 Kc4 Bg5 Rc7 Na7 Rc8 Ne3+ Kc3 Rb5 Rb2 Ra5 Rb7 Nc4+ Kc2 Nb5 Kb1 Raa6 Rd7 Rad6 Ka1 Rd5 Rdc7
1QBnNb1K/2brQnN1/2N2pR1/3n2P1/k1pR1rp1/1N6/2RqN3/3b2BR w - - 0 1 illegal: No proof kernel
N1RBQ3/1bQ2Npk/2prB2B/3R1qb1/KQ1n2Bp/4rQ2/nb4rP/6Q1 w - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 f5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 fxg4 Kd2 Kf7 Kc3 Kg6 Kb3 h5 e4 a5 f4 h4 b6 c6 e6 g3 d6 g2 e5 Qe7 b7 Qf7 d7 Bd6 d8B Bb4 f5+ Kh7 f6 Ba3 Ka4 Na6 b8Q Qg6 b4 Qf7 e7 Ra7 e8Q Ra8 e6 Qe7 b5 Nb4 b6 Bb2 f7 Bc3 f8Q Bd2 b7 Kh6 Bc4 Nd3 Qc7 Rb8 Nf3 g1R Ng5 Rg2 Qg1 Qf6 e7 Nb4 Na3 Qf5 Nb5 Na2 Nf7+ Kh7 Be6 Bg5 Bf4 Ra8 b8Q Bb7 Rd1 Nh6 Rd5 Qd3 Bg4 Nf5 Be3 Nd4 Be6 Bf6 Bh6 Bg5 Bg4 Bc8 Qbb6 Bb7 Qc5 Ra6 Qb4 Rb6 Qd1 Qf5 Re1 Ra6 Re4 Ra8 Qg1 Rb8 Qb6 Ra8 Nc7 Rc8 Na8 Rg8 Bc7 Rd8 Qa7 Rd6 Bd8 Bc8 Qc7 Bb7 Qed7 Rh8 e8B Rg8 Qde7 Rh8 Bd7 Rg8 Ka3 a4 Qfe8 Rf8 Re2 Rg8 Qe4 Rf8 Qf3 Rg8 Qe7 Re8 Qf8 Re5 Qe8 Re4 Be6 Re3+ Qb3 Nc1 Kb4 a3 Ka4 a2 Qb4 a1B Rb2 Ba6 Qc4 Na2 Rb8 Bc3 Rc8 Bb7 Qb4 Bb2
1q1r4/knQ1pb2/7K/1pNQrN2/2PprR1Q/2n1Q1bN/b4QN1/1B3RB1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 g5 Ke3 d5 c4 Kd7 f4 Kc6 h4 b5 a4 Kb7 c6+ Ka6 a5 b3 c7 g4 f6 g3 h6 b2 h5 g2 f5 d4+ Kf4 Nd7 Kg5 Ka7 h7 Nc5 a6 Bd7 c8Q Bg7 f7 Kb6 f8Q Qe8 f6 Na4 a7 Qf7 h6 Bc6 Qd2 Be4 Rh4 Qe6 f7 Nc5 Nh3 Nd3 Qe3 Nf6 Rf4 Qc6 Na3 b1B Qc7+ Ka6 Nc2+ Ba2 Ne1 g1R+ Ng2 Nb2 Bd3 Na4 Bb1 Rg8 h8N Qd7 h7 Qd6 Ng6 Re1 h8Q Nc5 N6h4 Bd5 Nf5 Nb7 Qh4 Rd8 Kg6 Bh8+ Kh6 Rg4 Bd2 Qb6 a8Q+ Qa7 Bc1 Ne4 Bd2 Re2 Be1 Nc3 Bf2 Be5 Bg1 Re8 Qad8 Qb8 Qdd7 Be6 Qd5 Rc8 Qhf2 Rg5 Qh8 Rd8 f8N Bf7 Nd7 Ka7 Nc5 Re1 Qf6 Rg4 Q6h4 Re2 Re4 Bg3 Rf4 Rg5 Bd3 Rg4 Rf1 Rg5 Bb1 Re1 Nd6 Re5 Nf5 Re2 Qc1 R2e4 Qa3+ Na4 Qae3 Nc3
4qr1B/2rN2NB/2R1B3/r1K3nQ/1QNP3b/1R2pbNn/p2NBpqk/8 w - - 0 1 illegal: No proof kernel
2Kb2BR/nR3RR1/B2QB2B/q3p2Q/1Rb2N2/1rqPp2q/1p1r2nk/1N6 w - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 h5 cxd5 Nc6 gxh5 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 g5 f4 e3 h4 c6 a6 e6 a7 g4 a5 g3 f5 b4 f6 g2 h6 b3 f7 b2 h5 Qg5 h7 Na6 h6 Qe7 Ne2 g1Q Rh4 Qe8 Nf4 Nb4 a6 Qh2 Qh5 Be7 f8R Rb8 a8B Bd7 a7 Nf6 Rf7 Qh3 Ba6 Ng4 d3 c5+ Ke4 Rg8 h8R Bd8 Rhh7 Bb5 Rhg7 Bc4 h7 Nc6 h8R Rb3 Ra4 Qd7 Rb4 Qc7 B8b7 Qa5 a8B Na7 Bc8 Re8 Bc6 Rf8 Rfb7 Rf7 Be8 Rf6 Bf7 Rf5 Bg8 Rf7 Ng6 Rf2 Nf4 Rd2 Bd7 Nh6 Rf7 Nf5 Rg4 Nh4 Rgg7 Ng2 Bc8 Qf5+ Kf3 Ke5 d6 Bb6 d7 Bd8 Qh2 Qh7 Kg4 Qh6 Re7 Qh3+ Kg5 Bb6 d8Q Bc7 Qe8 Bb6 Kg6 Bd8 Kf7 Kf5 Qd7 Ke5 Ke8 Kf5 Rgh7 Kg4 Qd6 Kf3 Qh1 Kg3 Qd1 Kh2 Kd7 Rf2 Rhg7 Re2 Bd2 Rf2 Be1 Rd2 Bh4 e5+ Qg4 Bf7 Bg5 c4 Bh6 c3 Qf5 Bc4 Ref7 c2 Qg4 Qh4 Qh5 c1Q Ke8 Bg5 Be6 Qc3 Kd7 Bd8 Nh3 Nc6 Nf4 Qh3 Kc8 Na7+
3k3n/2nrb2N/8/B1BNppq1/R1Q1B2Q/Bq1bQ2B/5PRp/K3Q1nr w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 Ba6 hxg5 Bc8 c4 h5 d4 a5 Kd2 e5 Kc3 f5 Kb2 h4 g4 h3 b6 a4 b7 e3 g6 h2 g7 e2 c6 e1Q c7 Rh6 d5 Ne7 g8B Bd7 c8Q Rd6 g5 Bg7 g6 Nec6 c5 Bf8 g7 Be7 Nh3 Bh4 Ng5 Qe4 Nh7 Bf6 Rg1 Na7 c6 Qf4 c7 Qg3 Rg2 Bb5 Nc3 Bh4 Qe1 Nd7 b8B a3+ Kb1 Ra6 d6 Be7 Bd5 Nf8 Be4 Ng6 Nd5 a2+ Kb2 Bd3 g8Q+ Nf8 Qe3 Nb5 Qg4 R6a7 Qh4 Ng6 Qb7 Nh8 c8Q Qf3 Qc4 Nc7 Qbb4 Rb7 Ba7 Qh3 Rb1 a1N Bc5 Nb3 Ra1 Nd4 Ra4 Nf3 Ka1 Ng1 Ba3 Qf3 Qbd2 Qd1+ Qdc1 Qb3 Qce1 Kd7 Qed4 Qg8 Qde3 Kd8 d7 Qg7 Rg4 Raa7 Bh3 Qg5 Rg2 Rb4 Qcc3 Rc4 Qcd4 Rc2 Qdc3 Rd2 Qc4 Rd1+ Qcc1 Ne2 Qb4 Ne6 Qc4 Rh1 Qe1 Ng1 Nb4 Kc7 d8B+ Kc8 Nd5 Rd7 Bdb6 Nc7 Ba5 Kd8
1b5n/k5Bn/1NR3pR/q2rQ2K/R2qR3/1Q3nPQ/1pN1bQp1/rQ2B3 w - - 0 1 illegal: No possible last move, all moves rejected
b1RB3b/4N1N1/1Nn2Pn1/Q3B2q/1rQ1q1Bp/1RrB1np1/2N1K1p1/2B4k w - - 0 1 illegal: No proof kernel
RRB1Q1N1/3K2bk/5p1N/2NbBn2/p1qb2PN/QnN3B1/p6B/3q1r1r w - - 0 1 legal: proof: f4 b5 h4 d5 c4 e5 cxd5 g5 fxe5 Nh6 hxg5 Ng8 a4 bxa4 Kf2 a5 Kg3 h5 Kf4 c5 b4 h4 d4 a3 g4 a2 e4 c4 e6 c3 Kf5 h3 d6 h2 b5 c2 b6 Be7 g6 Kf8 b7 Kg7 d5 Qd7 e5 Rh4 Ba6 Bd8 Qd3 Ra7 Bf4 c1B Nc3 Rh7 Bg3 Qc7 d7 Nf6 d6 Bh6 e7 Kh8 e8N Bd2 e6 Be1 g7+ Kg8 e7 Nh5 Nf3 Nf6 Nh4 Qc4 Nc7 Rh6 e8Q+ Kh7 g8N Ne4 Ne6 Nd2 Nc5 Nc6 b8B Bf2 Rhb1 Bb7 Rb3 Bg5 d8N Bf6 d7 B2d4 Bbe5 Bg7 Rb2 Ba8 Rb8 Nb3 Bc8 Rb7 Qe3 Rc7 Qc1 Rb7 Qa3 Ne7+ Kf4 Nf5 Ke4 Qd3+ Kd5 Rh5 Kc6 Qc4 Rb1 f6 Nf7 a4 d8B Rb6+ Kd7 h1Q Bdc7 Bd5 Nfh6 Qd1 Ra8 Rc6 Bh2 Re6 Beg3 Re1 Bce5 Rf1 Nf3 Na1 Rbb8 Rh3 Nh4 Nb3 Bg1 Rh1 B1h2 Qa6 Qe7 Qad3 Qe8 Qc4
4k2N/N4q1R/1R1pNp2/1p1BQ3/2b1r1B1/2BP1rnK/N4r1b/BQ1B1nq1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c6 a4 Be7 b4 Rh7 axb5 Bf8 b6 Rh8 b5 cxb5 Kf2 g5 Kg3 a5 e4 d6 h4 a4 c4 g4 c5 a3 c6 a2 h6 Ra4 d3 Qc7 h7 Qb7 e6 Be7 e5 Bf6 e7 Bg7 c7 Nc6 h5 Bf6 h6 Kd7 e8B+ Ke7 e6 Bg5 Ne2 Nf6 Bd2 Rf4 Nd4 Qb8 b7 Ne5 Bg2 Re4 Nc3 Ng8 Qb1 Qa7 b8N Nf6 Nbc6+ Kf8 Rh3 Bb7 c8B Nc4 Rh4 Rg8 h8N Ne3 h7 Nh5+ Kh2 g3+ Kh3 Bf4 e7+ Kg7 Bf5 Rf8 Bg4 Nf1 Ne6+ Kf6 B2f3 g2 Bd1 g1Q Be1 Qaf2 Na7 Bd5 Bc6 Bc4 e8Q Bh2 Bd5 Nhg3 Qe7+ Ke5 Qg5+ Qf5 Qf4+ Kf6 Qe5+ Ke7 Ne2 Rf4 Bc3 Rf3 Nc1 Kd7 Ng6 Ke8 h8B Qf6 Rh7 Qe7 Qf5 Qd7 Bhd4 f6 Qe5 Qf7 Nh8 Qg8 Rb7 Qf7 Rb6 Rg8 Qb2 Rg5 Rb1 a1R Na2 Rg7 Rc1 Rg5 Qb1 Rgf5 Rc2 R5f4 Re2 Re4 Rf2 Rfe3 Rf5 Rf3 Rh5 Rf2 Rh7 Rf3 Nc1 Ra4 Na2 Rb4 Ba1 Rb2 Bc3 Rbf2
7B/6r1/pK2Nrp1/q3pBbn/k1NRNn1R/4b1R1/1R2R1Pq/q1Q1QN2 w - - 0 1 illegal: No extended proof kernel
4k2n/1R3Np1/q2rbQ1q/B1RN4/1RBb2pQ/2nKnP1B/B1p1B1rR/8 w - - 0 1 illegal: No proof kernel
2bqn1NQ/1rr2ppP/QBB2QBR/1N1b2K1/8/2bRQ3/6p1/Bkn1q2B w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 Ke3 Ke6 Kf4 d5 c4 a5 h4 g3 b4 a4 e4 a3 b6 d4 b5 a2 b7 d3 b6 d2 h5 Bd7 h6 Qc7 c6 Bc8 c5 Be7 h7 Ra4 Bd3 Bd6 Kg5 Nf6 Na3 Rd8 Ne2 Nh5 Qf1 d1B Nc3 Na6 b8B Rb4 b7 Bd7 Ba7 Bf3 b8Q Bd1 Bb6 Re8 Nd5 Nf4 Nf6 Rd4 Bb2 Bb3 Nb5 Bc2 Rh6 Rg8 Rd1 Rh8 Ba1 Qd8 c7 Rg8 c8Q Ne2 c6 Bb3 c7 Rb4 Bb1 Be7 Rd3 Bd5 Qcb7 Rb3 c8B Nc7 Qa6 Nc1 Bb7 Bb4 Qf3 Bc8 Bc2 Ke7 e6 Ne8 e5 Bc3 Qe3 Rb4 Ba8 Rc4 Qbb7+ Rc7 Qc6 Bc4 Qcf3 Rh8 Be4 Bd5 Qff4 Rb7 Bh1 g2 Ng8+ Kf8+ Qf6 Rc7 Bb2 a1Q Bb1 Qa5 Ba1 Qb4 Kf5 Qh4 Bc2 Qe1 Kg5 Nd6 Qc5 Qe8 Re3 Bd7 Ne7 Rb7 Bg6 Qc8 Nc6 Ke8 e7 Bg4 Ba5 Kd7 Bb6 Qa8 Rd3 Rc8 Qe3 Bh3 Ncd4 Bhe6 Nf5 Kc6 e8B+ Bd7 e6 Rcc7 e7 Qb8 Qh3 Qd8 Ba5+ Kc5 Qe3+ Kc4 Bb6 B7e6 Bc6 Kb3 e8Q Kc2 Qh8 Bc8 Ne7 Kb1 Ng8 Ne8
rkn3Q1/1p1r1Q1B/b2q2K1/np2B3/4R1BB/NP4Nn/1qpQ4/bB4QR w - - 0 1 legal: proof: h4 g5 hxg5 f5 e4 d5 exf5 d4 b3 d3 Bb2 Qd5 Bd4 Na6 Bb6 axb6 cxd3 Qd8 d4 Nb8 d5 Ra5 Nh3 Ra4 Ng1 Ra8 Ke2 Kd7 Kd3 e5 Ke4 h5 a4 c5 f4 Kc7 g4 c4 d4 h4 a5 h3 a6 h2 d6+ Kd7 a7 c3 d5 Na6 f6 Nc5+ Kf5 e4 g6 e3 g7 e2 f7 e1Q g5 Ne6 g6 Qg3 Ra4 Rh4 Bh3 Qe1 Ne2 Ng5 Ng3 Nf6 g8B Ngh7 g7 Nh5 Re4 Qe2 Qg1 Qb2 Bg4 Ng5 Na3 Nf3 Bh7 Nf6 g8B Bg7 f8Q Ne5 Qf7+ Qe7 Bg6 Nc6 B8h7 Na5 Kg5+ Kd8 d7 Kc7 f5 Ne8+ f6 Qd6 B6f5 Rh3 Kg6 Bh8 Re5 Bg7 Bb1 c2 Re4 Rh5 Qe6 Rf5 f7 Rf1 f8B Rf7 Qe1 Bf6 Bg7 Bc3 Be5 Re7 Rg1 h1N Qe3 Nf2 Rh1 Nh3 Qg1 Rb8 a8Q Bd4 Qa6 Ra8 d8Q+ Kb8 Qe2 Rc7 Qdf6 Bd7 Qff7 Bb5 Qd2 Ba6 Qg8 b5 Qf6 Qc6 d6 Rd7 Qff7 Qa2 Qh8 Rd8 Qgc1 Ba1 Qg1 Qb2 Qhg8 Qc5 d7+ Nd6 Ra4 Qc7 Rd4 Nc8 Re4 Re8 d8B Re7 Bf6 Rd7 Be5 Qd6+ Bdf6 Qc7 Bh4 Qd6+
1B1Q1B2/P3p2B/4k2K/1p2qn1p/1Qr3bR/1Qb1r3/NrBq1R1N/Qn1Q4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 c5 Kf4 b5 a4 h5 g4 c4 d4 c3 a5 b3 f6 b2 a6 c2 d6 Nd7 d5 Qe8 a7 Rh6 Ra2 Nb8 d7 Rh8 d8Q Nd7 d6 Rb8 g6+ Ke6 Kg5 Qf7 f4 Bb7 f5+ Ke5 g7 Ba8 Nf3+ Ke4 Bd3+ Kd5 Nh2 Bc6 Nc3+ Ke5 Qa5 b1Q Qb4 Qc4 f7 Rb6 f6 Qe4 Bf4+ Ke6 Be5 c1R Bc2 Nh6 g8B Bg7 Bh7 Ra6 f8Q Rg8 f7 Nc5 d7 Na4 d8Q Bd7 Bb8 Nf5 Rb2 Qe5 Na2 Bh8+ Qg7 Nc3 f8B Ra3 Kg6 Qa1 g5 Qd6 Bb3+ Qd5 Rf2 Nb1 Ba4 Qae5 Bc2 Ne3 Kh6 Qd2 g6 Bc8 Bb3+ Rc4 Bc2 Bd7 Rg1 Rb3 Rg4 Rb2 Rh4 Qc5 Qd4 Qe5 Qdc3 Rg7 Qd4 Rf7 g7 Rf3 Qdc3 Rh3 Rf7 Rf3 g8Q Rh3 Qg3 Bc8 Rf2 Nf5+ Kg6 Bd7 Qgg1 Re3 Qcb3 Qf4 Qgf1 Bc3 Qg1 Qe5 Kg5 Na3 Qa1 Nb1 Qd1 Bc6 Kg6 Bf3 Kg5 Bg4 Kg6 Nd6 Kh6 Nf5+
5q1N/r1b2n1R/2bbB2r/2Kbk3/RBQ1pR2/p1RQp1P1/N4B2/nB5R w - - 0 1 illegal: No possible last move, all moves rejected
1q5N/bn1N1bB1/N5p1/b2r2NQ/R2b3B/1n1Q1R1B/p2p1rP1/3BNK1k w - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 dxc5 fxe4 a4 g6 axb5 Nh6 h5 Ng8 h6 Qc7 Bd3 Qe5 Bf1 Qg7 hxg7 Bb7 Ra3 Ba6 Ra1 Bc8 f4 Kf7 b4 Kf6 c4 Kf5 c6 h5 c7 d5 c5 a5 b6 e5 c6 h4 b7 a4 b5 h3 b6 h2 Qd2 Kg4 f5 Kg3 f6 e3 f7 d4 Qc2 a3 Qd3 a2 Nd2 e4 Be2 Nh6 g8B Nf5 Nh3 Ra5 Nf3 Nd6 Kf1 Nd7 b8N Rd5 b7 Bg7 f8B Nc5 Nd7 Nb3 b8N Nb7 Nhg5 Bf6 Bd1 e2+ Ke1 Rh7 Na6 Re7 Be6 Bg7 Rf1 h1Q Rb1 Qh2 Bh3 Bh8 Bg7 Ree5 Nb6 Be6 c8Q Bf7 c7 Re7 Qd8 Ree5 Qb5 d3 c8N Re7 Nd6 Re6 Bh6 Bd4 Nd7 Ree5 Bg7 Re7 Bg4 Qh8 Qda5 Qb8 Bh3 Ba7 Bcb2 Re8 Bbf6 Re6 Nh4 Kh2 Rf3 Kh1 Rc1 Re8 Rc4 Ree5 Rd4 Re8 Kf2 e1B+ Kf1 e3 Ra4 Bc3 Qc4 d2 Qd3 Bb4 Qc5 Ba5 Bd8 Be6 Ndf7 e2+ Kf2 e1B+ Kf1 Bf2 Nh8 Bf7 Qcb5 Rd6 Qbf5 Bfb6 Qg4 Re4 Qh5 Rd5 Rf5 Rc5 Nh7 Qc8 Nf3 Re2 Bh4 Qb8 Nhg5 Rd5 Ne1 Bd4 Rf3 Rf2+
3r1QB1/bn2R2P/1kq1N2n/7b/1BRRpQ1R/p1pb2K1/r2B1R2/N1Bb4 w - - 0 1 illegal: No proof kernel
r2B4/1BR1pnqP/3kbN1r/6RQ/3b4/n1p1pb2/RBK2QbN/2R1R2B w - - 0 1 illegal: No proof kernel
6nb/prb2KpN/rQ4RB/B5R1/1B6/3R1bbQ/1pRN1P2/k1nBRq2 w - - 0 1 illegal: Other
7R/R1rp1B2/BbB2p1q/4BPQb/2qbpQ2/1N6/B2rrQ1n/QK1k2N1 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 f6 e4 Nc6 e5 Kf7 Qd3 Ke6 Qd1 Kd5 e6 Kd6 Rh3 Ne5 Rh1 Nf7 exf7 Bh6 Rh2 Bg7 Rh1 Bf8 Kd2 Kd5 f4 Ke4 b4 e5 c4 a5 Kc2 h5 g4 a4 c5 h4 b6 a3 f5 a2 c6 h3 g6 h2 b5 Rh5 g5 Bd6 f8Q Bb8 g7 Rh4 b7 Qe7 g6 Qb4 c7 Ra6 b6 Ra4 Bf4 Ra7 Bb5 Nh6 g8B Ng4 g7 d3+ Kc1 Rh6 Qc5 d2+ Kc2 Rh5 Bf7 Qc4+ Kb2 Kd3 g8B e4 Bc6 Rh3 Qf2 Re3 Be5 Re2 Qdf1 d1R+ Nd2 Ra6 Q1e1 Ba7 b8Q Ra3 b7 Bb6 Qa7 Rc3 b8Q Ba6 c8B Bb5 Ba6 Ba4 Rc1 a1B+ Kb1 Bb2 Nb3 Rdd2 Qf4 Rcc2 Qg5 B2d4 Qf2 Bb5 Re1 Rc3 Ka1 Kc2 Rb1 Ba4 Rb2+ Kd1 Kb1 Qd5 Qd6 Rc5 Ra2 Qc4 Qf8 Bb5 Qfh6 Ba4 Qgf4 Bb5 Qhg5 Ba4 Bcd5 Rc7 Bc6 Bb5 Bab7 Qd5 Nc5 Ba6 Be6 Re1 Bgf7 Be2 Qa3 Bf3 Qb2 Re3 Ra7 Ree2 Ba6 Qb3 Bec4 Qa4 Ba2 Qc4 Qg7 Ne3 Qa1 Nf1 Nb3 Bg4 Nh3 Bf3 Qgg5 Bg4 Rg1 h1Q Rg3 Qh2 Ng1 Qh4 Rc3 Nh2 Rh3 Qh8 Rh7 Bh5 Rh6 Qf8 Rh8 Qh6
3NrbB1/4kp2/1p3NqN/2RQ3b/1npKNqB1/2PB2Bb/2q3Qn/3RN3 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 Bc5 Nh3 Be7 Ng1 Bf8 g4 Bh6 h4 Qf6 h5 Ra4 g6 Ra3 g5 Bf8 g7 Ra6 Ba3 Qe7 Bc1 Rg6 hxg6 Qd8 Kf2 h5 Ke3 c5 a4 d5 a5 b3 c3 h4 e6 b6 e7 h3 a6 b2 a7 c4 a8N h2 Nc7+ Kd7 e8N Nf6 g8Q Nh5 g7 Rh6 g6 Ba6 Nd2 b1B Ngf3 Be4 Ra5 Nc6 Ne6 Qh4 Ne1 Qe7 Nd8 Rh8 Rc5 Bf5+ Ne4 Qd6 N8f6+ Ke7 Rg1 Nb4 Kd4 h1Q Bf4 Bfc8 Bg3 Bh3 e3 Bb5 Bd3 Qf4 Qd2 Bg4 Qg2 Bh3 Qh7 Ba4 g8B Bb3 g7 Bd1 Qf5 Be2 Nf3 Qh2 Rd1 Qg1 Ne1 Bf3 Ng4 Be2 Nh6 Nf6 Bh7 Bf3 g8B Ng4 Qh5 Nh2 Bf5 Qf2 Bd7 Qf5 Bc8 Qg6 Bg4 Qd2 Nd6 Be2 e4 Qdg5 e5 Qf4+ Ne4 Bf3 Bc8 Be2 Qf5 Bh5 e6 Qh4 Be2 Nc2+ Ke5 d4 Ra1 d3 Bh7 d2 Bd3 Ke8 e7 Nb4 Kd4 d1Q Qd5 Qc2 Rd1 Qf4 Bg4 Bg7+ Qe5 Rf8 Bg8 Qgf6 Bf2 Qe6 Bg3 Kd7 e8N Ke7 Nf6 Re8 Nh7 Bf8 Qd5 Qef5 Nf6 Qg6
2kn4/2Bp2qr/3Qp1B1/BQR2b2/R3P1pQ/1n2b1bQ/3N1B2/qQK1n1N1 w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 f5 h3 a5 gxf5 g5 h4 g4 Ra2 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 Kd2 h5 b4 d3 c4 e6 f4 a4 g6 a3 g7 h4 b6 h3 f6 a2 c5 h2 b7 Qc7 c6 Kd8 b5 Bc5 b6 Be7 f5 Rh3 f7 Na6 f8B Nb4 b8Q Nh6 g8Q Nf7 f6 Ne5 b7 Qb6 f7 Qa6 Qh8 Nc2 Qh4 Nd4 e3 Bf6 Bb4 Bg5 Ba5+ Qb6 f8B Nf7 Qd6 Qc7 b8Q Qb6 Qhe1 Rh7 Qh4 Qc7 Qbb4 Ba6 Qb5 Kc8 Qh3 Qb8 c7 Nd8 Qe1 Bf4 Qeh4 Bg3 Kd1 d2 Bd3 Bb7 Bg6 Be4 Be7 Bf5 e4 Qa8 Bg5 Qd5 Be3 Qe5 Bf2 Qg7 Ba3 N4c6 Kc2 d1N Nd2 Ne3+ Kc1 Ng2 Bac5 Ne1 Bcb6 Nb7 Rb1 a1B Rb4 Bae5 Ra4 Bef4 Qb1 Nbd8 Qb5 Nd4 Qb1 Kb7 Qb5 Be3 Qb1 Ka6 c8Q+ Nb7 Qc3 Nd8 Qcb3 Kb7 Bc7+ Kc8 Qb5 Bg5 Ne2 B5f4 Rf1 h1Q Ng1 Be3 Kb2 Nef3 Rc1 Ne1 Rc5 Qf3 Rb4 Qd1 Rbc4 Qa4 Kc1 Qa1 Ra4 Nb3+
b1Q1n2r/b2B1BBp/q2q2q1/QN2p1pn/3n2KP/7R/3Bk3/1Q1NBRQ1 w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 f5 e4 c5 exf5 cxd4 f4 Nh6 g4 Bb7 f6 Kf7 g5 Ke6 f5+ Kd6 f7 Ng8 Ke2 Ra6 Ke1 Bc8 Qh5 Kc7 Qd1 Rf6 gxf6 Kd6 Ke2 Kc5 Kf3 e5 c4 g5 h4 d5 b4+ Kd6 c5+ Kd7 b6 Kc6 b7 d3 b5+ Kd7 b6 Kc6 Kg4 Kb5 c6 Kc4 c7 d4 Bd2 a4 Ne2 a3 Nbc3 a2 Nb5 Nd7 b8Q Ba6 c8B Qe8 b7 Qe6 Rh3 Bc5 f8Q Ba7 f7 Qg6 Be1 d2 f6 d3 Nec3 Ne7 Qb1 d1N Qd8 Nb2 f8B Nf5 f7 Nd4 Bg2 d2 Nd1 Nd3 Qa5 Nf4 Bb4 Nh5 f8B Qb6 Qa8 Qg6 b8Q Bb7 Bg7 Bd5 Qab7 Bc6 Qbb6 Ba8 Nf2 d1Q+ Bf3 Nf8 Bd7 Nfe6 Qc8+ Nc7 Bbc3 Qdd3 Bcd2 Qa3 Nd1 Qad6 Qbb4+ Kd3 Bd5+ Ke2 Bf7 Ne8 Qb1 Ne6 Qg1 Nd4 Qf5 Qc6 Rc1 a1Q Qb1 Qb6 Rc6 Qa3 Rf6 Qad6 Rf1 Qa6
6N1/r2n1nNR/b1QprpN1/6B1/KQ4BN/B1p2P1N/1B1rq1Rn/qk6 w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Na6 a4 Be7 h4 Bc5 a5 Bb6 axb6 gxh4 Qd3 Nb8 Qd5 Ne7 Qd1 Ng8 Kd2 Ke7 Kc2 Ke6 Kb3 Kf5 e4+ Kg6 g4 h5 e6 a5 e7 c5 e8N h3 g5 h4 e5 Kf5 b7 Ke4 g6 c4+ Ka4 c3 b6 h2 g7 f6 e6 h3 b5 Ra6 e7 Rh6 Qg4+ Ke5 Be2 Rh4 Qb4 Rh8 Bg4 Rh6 Bb2 Rh7 Ra2 Nh6 g8N Nf7 Ng7 Qe8 Nd2 Kd5 Ndf3 d6 Nh4 Nd7 b8N Ra7 f3 Ba6 b7 Rh5 b6 Re5 Nc6 Re6 Qb3+ Kc5 Ne5 Kd4 Neg6 Kd3 Qb4 Kc2 b8B Kb1 b7 Nd8 Ka3 a4 Bc7 Nf7 b8B Qd8 e8Q Qe7 Qc8 Qe8 Bb6 Qe7 Qd4 Qe8 Kb4 a3 Qc6 Qe7 Ka4 Qe8 Bc1 Qe7 Rc2 a2 Bc5 a1Q+ B5a3 Qe8 Rg2 Qe7 Ne2 Qe8 Nef4 Qe7 Rf1 h1R Qdc4 h2 Nh3 Rg1 Q4c5 h1N Qb4+ Qb2 Bc7 Ng3 Bb6 Qe8 Rff2 Nf1 Bbe3 Nh2 Bg5 Rd1 Rf1 Rd2 Rd1 Kc2 Rh1 Qa2 Bb2 Qa1 Ng1 Kb1 Nh3+ Re1 Qcc5 Qe7 Qc6 Qe2 Nf2 Qe5 Nhf5 Nf1 Rh7 Nh2 Nfh4 Qe3 Nh3 Qd3 Rh6 Re6 Rh7 Qe2
1B1Nb3/1p1pk1p1/RrR1B3/nB6/r5QR/K1QB4/2qP3B/nRrNqn2 w - - 0 1 illegal: No proof kernel forced: wxLB
1K4Rr/1B2p3/pNn1r1B1/RQ6/3Rpr1k/5R2/1q1bP1rB/BNBbqQ2 w - - 0 1 illegal: No proof kernel
1b1N4/4rr2/1b2R1n1/RQ3p1N/QN1nb1p1/1Q3PQK/r2b1p1N/BN1B3k w - - 0 1 illegal: No possible last move, all moves rejected
1nQ3Nr/B1ppRb1p/1r4k1/1b1N4/2BPK1n1/R3Q1N1/N1bb3n/QNQ5 w - - 0 1 legal: proof: h4 e5 a4 b5 b4 g5 hxg5 Be7 axb5 Ba6 b6 Bc8 b7 Kf8 c4 Bd6 f4 exf4 c5 Qf6 b5 Ke8 Rh2 Be7 Rh1 Qb6 cxb6 Bf8 Kf2 a5 Kf3 f5 g4 Kf7 e4 a4 g6+ Kf6 g7 a3 g5+ Kg6 e5 a2 e6 Ne7 g8N Ra7 Nf6 Ra8 Bc4 Ra4 Nd5 Bg7 Ne2 Ra7 Re1 Bf6 Ng3 Nec6 e7 Ra6 e8Q+ Kg7 g6 Bc3 d4 Bd2 Re7+ Kh6 g7 Ne5+ Kf2 f3 g8N+ Kg5 Ba3 f4 Qc1 Ng4+ Kf1 f2 Ke2 f1B+ Kf3 Ba5 Ke4 Nh2 Bd6 Bd2 Bc5 Nc6 b8N f3 b7 f2 Ba7 Rb6 Na6 Nb8 Nab4 Bh3 Qf7 f1B Qf2 Be6 Qg1 Kg6 Qe3 Nc6 b8Q Bf7 Qb7 Nb8 Qa6 Be2 Qaa3 Bd1 Qa4 Ba6 Qa5 Rf6 b6 Bb5 b7 Rb6 Qaa3 Na6 b8Q Bb3 Qc8 Nb8 Nbc3 B3a4 Rb1 a1N Nba2 Nc2 Ra1 Bb3 Qa5 B3a4 Nb1 Bb3 Nab4 B3a4 Ra3 Bb3 Na2 B3a4 Qec3 Ne3 Qaa6 Neg4 Qe3 Bb3 Qa5 Bd1 Qac3 Bda4 Qa1 Bc2+
k1bK3r/6b1/B1p1R1n1/n3Q1r1/pNq3Q1/N1N1NpQ1/PB1p1r1Q/2R3N1 w - - 0 1 legal: proof: d4 Nf6 c4 Nd5 c5 Nf6 c6 bxc6 d5 Ng8 d6 Bb7 Nh3 Ba6 Ng1 Bc8 dxc7 h5 f4 e5 fxe5 Bb7 g4 Ba6 gxh5 Bc8 Kd2 f5 Kd3 d5 Kd4 Kd7 h4 a5 b4 g5 e4 f4 b5 f3 h6 g4 h5 g3 e6+ Kd6 e5+ Ke7 Kc5 d4 Kb6 g2 h7 a4 h6 d3 Qe1 d2 Qg3 Bb7 Bb2 Qd6 c8Q Qc5+ Kc7 Qf2 b6 Nf6 Na3 Ng8 Rc1 Qe3 Ba6 Qf4 Rh4 Qe3 Re4 Bg7 Qd7+ Kf8 e7+ Kf7 e8N+ Kf8 e6 Ne7 Kd8 Be5 Nc7 Qd4 Nd5 Bg7 Ne3 Bc8 b7 Ng6 e7+ Kf7+ e8Q+ Kf6 Re5 Qc4 Qdg4 Nd7 b8N Rg8 h8N Nc5 h7 Nb3 Nf7 Na5 Nd6 Rh8 Nh3 g1R Ndb5 Rf1 Ng1 Rf2 Nc3 Ra7 Re4 Rb7 Re5 Rb5 Re4 Rg5 Re5 Rf8 h8Q Rg8 Qhh2 Rh8 Rd5 Ne7 Rf5+ Ke6 Re5+ Kd6 Re6+ Kc5 Rc2 Ng6 Rc1 Rh7 Qe7+ Kb6 Qed6 Ka7 Qde5 Rf5 Nd7 Ka8 Nf6 Rfh5 Nfd5 Rg5 Nb4 Rh8+
BqB1K1bn/4pRp1/P1r2Brb/1b2RN2/1nN2p2/Q5p1/1N1BQ1Nk/3N4 w - - 0 1 illegal: No proof kernel forced: wxDB
1R1rr3/1KNp4/1bB4k/1bbp4/pN1P1N1B/1q5N/B1N1nn1p/Q2Q2BR w - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 f5 exf5 c6 a4 Qc7 axb5 Qb6 Qf3 Qd8 Qd5 cxd5 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 a5 c4 h4 g4 h3 b4 h2 d4 a4 f4 Bb7 g6 Ra5 f6+ Kh6 f7 Ba6 g7 Kg6 f5+ Kh7 f6 Qc8+ Kb6 e5 c5 e4 g5 e3 c6 e2 c7 e1B Bc4 Be7 f8B Bf2 f7 Qe8 c8B Bg3 Nh3 Nf6 Be3 Bf2 Na3 Bh4 Ba2 Kg6 g8Q+ Kh5 g6 Ng4 g7 Nf2 Nc2 Beg5 Rab1 Ng4 Be7 Bf2 f8N Rh6+ Ne6 Bfh4 Bb7 Bf4 Bg1 Qg6 Bc6 Bf2 Bh4 Be1 Qh8 Bfg3 g8Q Rh7 Nef4+ Kh6 Qe8 Bd2 Qe1 Qd3 Qg8 Qc3 Qd1 Rh8 Ka7 Bge1 b6 Nf2 b5 Qb3 b7 Bb4 b6 Bc5 Qg3 Rd8 Qc3 Rb5 Qa1 Ba5 Rb2 Rb4 Ka8 Bf1 Ka7 Na6 b8N Bc4 Kb7 Nc7 Na6 Nb5 Nc7 Bd3 Ka6 Bf1 b7 Bab6 b8N Nc3+ Kb7 Bb5 Nba6 Ne2 Rb1 Rc4 Nab4 Rc3 Rb2 Re3 Ne1 Qc3 Nec2 Ba5 Nba6 Bd3 Rb5 Qb2 Nab4 Qb3 Rb6 Bb5 Ka7 Bf8 Rb7 Ree8 Rb8 Bc5+ Kb7 Bab6
4QQ1B/2p1pB1R/1Nq1P3/3r1k1K/4N1Nn/nr2B1np/1B1R2pN/1b2b1B1 w - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 cxd5 fxg4 h4 Bg7 hxg5 Bf8 d4 Kd7 b4 a5 e4 h5 Ke2 h4 f4 a4 f5 g3 Kf3 a3 Kg4 a2 e5 g2 g6 Rh6 g7 Rf6 d6 Ba6 b6 Nh6+ Kh5 Rf7 g8N Be2+ Nf3 Ra3 f6 Ke6 b5 Qc8 d7 Bd3 d8Q Ng4 b7 Bc2 b6 Ba4 d5+ Kf5 d6 Ke4 d7 Bc2 Bb2 Bg7 Nh2 Ra7 Qf8 Kf5 d8N Qd7 Na3 Ne3 Ne6 Qd4 Nh6+ Ke4 Bc4 Ba4 Ng5+ Kf4 Ne4 Qc5 Qdd8 Be8 N6g4 Ra5 Rad1 a1N Rd2 Nc6 b8B Nac2 b7 N6d4 Ba7 Ndf5 b8B Qc6 Bad4 Bh6 Bba7 Nf1 Bg1 Rd5 Qb8 Rg7+ f7 Rg6 Bb3 Bg7 Nc4 Na3 Nb6 Bf6 Nh6 Rg3 N6g4 Rf3 Bc4 Rb3 Qd8 Bd7 Qfe8 Be6 f8B Bc8 Bg7 N1g3+ Kg6 Bd7 Bh8 Be6 Qf8 Bg7 Qde8 Bg8+ e6 Bc3 Be2 Ba5 Ngf6 Bc3 Bh5 Ke5 Kg5 Bh7 Bf7 Bg6 Rd4 Be1 Rd2+ Nd4 Kh6 Kf5 Nfg4 Nf3 Nc4 Bh7 Bae3 Ne5 Nb6 Ng6 Bgf2 Ne2 Kh5 h3 Rf1 Nh4 Bg1+ Nf3 Rf2 Ng3+ Kh6 Rb4 Nef6 Rb3 Bg8 Bg6 Nh7+ Ke4 Rf1 Nd4 Rf7 Nf3 Nhf6+ Kf5 Rh7 Nh4 Bf7 Bf2 Bed4 Kf4 Bc5 Bc2 Ne4 Bb1 Bcd4 Kf5 Be3 Nh1 Kh5 Bg3 Rd1 Be1 Rd2 Ng3+
K2B3B/1Q1r3R/pp2BqB1/N3R1bB/4Npqk/pQ3Pn1/b1n4N/3bN3 w - - 0 1 illegal: Other
b2rB3/k1b3b1/B2B1pN1/1nq3Nr/3R1PN1/2p2BQp/pN1R2B1/Q1q3K1 w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 bxa4 c4 g4 b5 g3 c5 Na6 hxg3 Nb4 g4 Nd5 g5 Nb6 cxb6 Bg7 Nh3 Bh6 Ng1 Bf8 g4 c5 e4 d5 b7 Kd7 b8N+ Kc7 g6 Kb6 g7 h5 g5 a5 e6 d4 g6 d3 e5 a3 e7 a2 e8N h4 e6 c4 e7 a4 Rh2 a3 Nf6 h3 e8B c3 Nd2 Ra6 Ngf3 Qd4 Ng5 Bd6 Bg2 Qc5 Kf1 Bf8 Nc4+ Ka7 Nc6+ Ka8 b6 d2 Kg1 Bd7 Ng4 f6 Ne7+ Bc6 b7+ Ka7 Nb2 Nh6 g8B Nf5 g7 Ra5 Ng6 Nd6 B8d5 Nb5 g8B Bg7 Bdf3 Rh5 Rb1 a1B Bc4 a2 Qe1 d1Q Bf4 Qd2 Bd6 Qc2 Rd1 Ra4 Rd4 Rb4 Nd3 Bb2 Qa1 Bc1 Nb2 Bf4 b8Q+ Ka6 Qd8 Ka7 Qe7+ Bb7 Qe3 Be5 Qf4 Ba8 Qg3 Bf4 Bfe2 Be5 f4 Ra4 Bef3 Rb4 Bf8 Bc7 Bd6 Rb3 Bcd5 Ra3 Bb7 Ra6 Bc8 Rb6 Ba6 Rb8 Bh1 Rc8 Rd2 Rd8 Bhg2 Qc1+
1R5N/n1rNb1N1/1pp1KpNk/NQB5/p1Q4n/Q4bp1/2R1b1P1/1Q4qB w - - 0 1 illegal: Other
3n1KR1/p1p2n2/p1q3QB/BNp4r/Pb2p3/1rBR3B/n1R2RR1/Q2N3k w - - 0 1 illegal: Other
8/Q2qp1B1/3rB1B1/2N2p1R/1N2p1bn/K2pnPpR/1B2p2b/1B2kNQN w - - 0 1 illegal: Other
1rr1b2N/1R1N2Bq/b1NK4/1N2B1P1/3R1bQ1/1bB5/2k1bQbQ/2B1b3 w - - 0 1 legal: proof: b4 e5 f4 b5 fxe5 c5 d4 a6 dxc5 Qh4+ g3 Kd8 a4 Qh3 axb5 Ra7 b6 Qe6 b5 Qe7 b7 Ke8 b6 Qd8 Bg2 Ra8 g4 g5 h3 f5 Bc6 f4 Bb5 Nc6 Ba3 Nce7 Bc1 Nf5 gxf5 axb5 h4 g4 Ra4 Nh6 Ra3 Nf7 Ra1 Ng5 hxg5 Ra3 Rh5 Ra4 Rh1 Ra8 Kf2 Kf7 b8B d5 e4 h5 c4 d4 c6 d3 e6+ Kg7 c7 b4 e5 f3 Kg3 f2 Kf4 f1B e7 d2 e8N+ Kh7 c5 g3 b7 b3 e6 b2 Ke5 g2 e7 h4 f6 Kg6 c6 h3 f7 h2 Na3 b1B Nh3 g1B Qe2 d1B Nf4+ Kh7 Nf6+ Kg7 e8Q Bg2 Ng6 Bb3 Nb5 Bb6 Qf2 B3c2 Ra4 Ba3 Nd7 Bb3 Rd4 Bb4 f8B+ Kh7 Bh6 Bd3 Bg7 Be1 Kd6 Be2 Qe5 Qg8 Rf1 h1B Qh2+ Bh5 Ba7 Rb8 Rg1 Bba5 Bc5 Bf1 Bb4 Bhg2 Bc3 Be2 Rf1 Qf7 Rh1 Rf8 Nh8 Bd2 Rd1 Be1 R1d3 Bb6 Rb4 Be3 Rdd4 Bf4+ Be5 Ra8 b8B Ba6 c8N Qg7 Nca7 Rc8 Bc7 Rab8 Bb6 Qf7 c7 Qf5 Nc6 Qc2 Nf7 Kg6 Nh8+ Kf5 Ba7 Be8 Bc5 Ra8 Bb6 Rcb8 c8Q Qd3 Bd8 Qh3 Bf6 Qh7 Qc7 Rc8 Bg7 Rab8 Qa5 Ba2 Qa4 Bac4 Rd2 Ke4 Rdb2 Kd3 R2b3 Bcf7 Rd4+ Kc2 Qc4 Qf5 Qe6 Qh3 Qg4 Be6 Nba7 Bed5 Rb7 Bb3 Nb5 Qh7
RK1bQ3/1n3Rb1/1B6/nN4r1/3R1N1n/1RPNQ1N1/k1n2p1p/B3B1q1 w - - 0 1 legal: proof: b4 e5 f4 b5 fxe5 c5 d4 a6 dxc5 Qh4+ g3 Kd8 a4 Qh3 axb5 Ra7 b6 Qe6 b5 Qe7 b7 Qg5 b6 Ra8 Bg2 Qf6 Bc6 Ke8 Bb5 Qd8 g4 axb5 h3 f5 Ba3 g5 Bb2 d6 Bc1 f4 Ra3 Bf5 gxf5 g4 Ra6 g3 Ra1 Nd7 Nd2 Rc8 Nb1 Nb8 Be3 Rc7 Bd2 Rg7 Bc1 Rg4 hxg4 Bh6 Ba3 Bg7 Bc1 Bf8 Kd2 Kd7 Kd3 Kc6 Kd4 h5 e4 d5 g5 b4 e6 Kb5 Ke5 Kc4 c3 h4 f6 f3 e7 b3 e8R g2 c6 d4 f7 h3 c7 b2 c8R+ Bc5 f8N h2 g6 d3 g7 d2 Ra7 Rh3 Ne2 g1B Ne6 Nf6 g8N Qd7 Ng3 Qf7 Ne7 Rh6 Qe1 Kb3 Qe3 d1N Red8 Qg7 Nc6 Rh4 Na3 b1N Nf4 Bf2 Nb5 Rh3 Rd4 Nb2 Nb4 Rh7 Nbd3 Na4 Bb2 Qg4 Ba1 Nd2 Rb1+ Ka2 Rb3 Rg7 Rf8 Be1 Ra8 Nd5 Rf7 Qg5+ Ke6 Bf8 e5 Nc6 Kd7 Ndb4 Kc7 Nc2 b8B Na5 e6 Nc5 e7 Nb7 e8Q f2 Ba7 Nf3 Kc8 Nh4 Kb8 Nd6 b7 Bd2 Bc5 Qg4 Bb6 Rg5 Ka7 Be7 b8B Ndb7 B8c7 Bd8 Kb8 Qd1 Bd6 Qh1 Ba3 Qg1 Bc1 Nf3 Qe2 Be3 Bd2 Nh4 Be1 Bc1 Q2e3 Ba3 Q8e6 Bf8 Qe8 Bg7
nQn1BNB1/r2B1p2/2n2Q1n/2N2Q1b/2Rq1bp1/K1Q5/1PRBk1N1/8 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 h5 d4 c5 g4 d5 gxh5 a5 bxa6 Ra7 f4 exf4 cxd5 c4 Qb3 Rc7 Qd1 Rc5 dxc5 Ke7 Kf2 Kd7 Ke1 Ke8 Kd2 Kd7 Kc2 g5 h4 c3 Kb3 g4 e4 f3 e5 f2 d6 Kc6 h6 c2 a7 Be6+ Ka3 Qf6 a8Q+ Kd7 h5 Qg5 h7 Qe3+ Nc3 Ne7 h6 Nf5 c6+ Ke8 c7 Kd7 c8B+ Ke8 Bd7+ Kd8 Rh2 Bg7 Qd3 Ne7 Ne4 Bf5 e6 Nc8 Nc5 Be5 Ne2 Nc6 Nf4 Bg6 Ng2 Qd4 Bd2 c1N Qf5 Ne2 Rc1 Nf4 Bd3 f1N Rc4 Bh5 Qb8 Ne3 Be4 Re8 h8Q Nfd5 h7 Nb6 Qhf6+ Re7 h8N Bf4 Ng6 Na8 Nf8 Qd3+ Qc3 Qd4 Be8 Rc7 d7 Ke7 Bd3 Kd6 e7 Qe5 Bb1 Kd5 d8Q+ Rd7 Qdb6 Ra7+ Qa6 Ncb6 Bd7 Nc8 Qg6 Nf5 e8B Qd4 Qf6 Bc7 Qaa5 Nh6 Bh7 Bf4 Bg8 Rb7 Nd3+ Ke4 Qaf5+ Kf3 Nc5+ Kf2 Rh1 Rc7 Rc1 Ke2 Rc2 Ra7+
1K1r1n2/8/3Qb1B1/1R5b/pQ1NPRn1/1q1NBqQB/p4Np1/kB4N1 w - - 0 1 legal: proof: f4 h5 b4 c5 d4 d5 a4 b5 g4 e5 fxe5 a5 gxh5 c4 c3 Bc5 dxc5 d4 cxd4 bxa4 d5 a3 Nf3 a4 Ng1 Ra5 bxa5 Rh6 Qd3 Rh7 Qd1 Rh8 Kd2 Ke7 Ke3 g5 Kd4 f5 e4 g4 h4 c3 h6 a2 h7 f4 a6 c2 d6+ Ke6 h5 g3 a7 f3 a8Q f2 d7 g2 h6 Qg5 d8N+ Kd7 Kd5 Qg7 c6+ Kc7 e6 Kb6 Kd6 Ne7 c7 Ng6 e7 Nf4 e8B Be6 c8B Ne2 Nc3 Bf7 Ne6 Bg8 Rh4 Ng3 Bd3 f1B Rf4 Qb7 Bg6 Nc6 Qb8 Ka5 Nd4 Kb4 Bh3 Bc4 Rb1+ Bb3 Be3 Ka3 Qf8 Bc4 Rb5 c1Q Bb1 Nd8 Qd2 Ne6 Nd1 Bd5 Nf2 Nh5 Qf6 Rg8 h8N Be2 h7 Nf8 Nf7 Be6 h8Q Qc3 Ne5 Qb3 Qd8 Nf6 Ned3 Ng4 Qhh4 Qf7 Qg3 Qf6 Kc7 Bd1 Nc5 Bf3 Qa5 Kb2 Ncd3+ Ka1 Kb8 Bd1 Qe1 Qf5 Qb4 Qh5 Rf6 Qf5 Qdc7 Qf3 Rf4 Nf6 Nh1 N8h7+ Be8 Qf1 Qbe1 Bh5 Qd6 Qf3 Qeb4 Ng4 Nhf2 Rf8 Kb7 Rh8 Bg6 Rd8 Kc7 Nf8 Kb7 Rd7+ Kb8 Rd8+
2RBQq2/1NN3P1/1NQn1r1k/2R5/pB3R1p/3B2bb/2Kq1Bpn/4R3 w - - 0 1 legal: proof: g4 g5 b4 d5 h4 f5 gxf5 b5 c4 a5 e4 g4 exd5 Qd7 a3 Qc6 a4 Qb7 axb5 c5 bxc5 Ra6 Bb2 Rg6 Ba3 Rg5 Bc1 Qc7 hxg5 Qg3 c6 Qg2 c5 Be6 c7 Bd7 c8N Bxc8 f4 Kf7 d4 Kg7 b6 e5 g6 h5 b7 a4 d6 h4 c6 g3 f6+ Kh6 g7 e4 f5+ e3 c7 Qc2 d7 g2 d8B Qc3+ Nd2 e2 d5 Ba3 f7 Qh3 f8B Rh7 d6 Qd3 f6 Bh3 c8R Rh8 d7 Qc3 f7 Rh7 Bb4 Bf5 f8R Bb1 Rf4 Be4 Nf3 Rh8 Qc2 Bb2 Ng5 Nf6 Ne6 Nc6 b8Q Na5 Nc7 Qa3 Nc4 Bf5 Kd2 Be5 Nb6 Rf8 Qc6 Bh3 Kc2 e1Q Be3 Nb7 Bd3 Nd6 Bf2 Qe3 Rhe1 Ng4 Rac1 Rf5 Be7 Rf8 d8N Nh2 Nb7 Rf5 Bd8 Rf6 Rf5 Bg3 Rf4 Qa1 Qa8 Qae5 Qe8 Qe7 Qa6 Qf7 Qab5 Qf8 Qbc6 Qd4 Kb1 Qe4 Rc5 Qe3 Kc2 Qd2+
n2RK1RN/1p3p1B/2BRq3/N2p2nB/8/q1Bp2NQ/1P1qQq2/k6N w - - 0 1 legal: proof: a4 e6 e4 Bd6 e5 a5 Be2 Ra6 Bb5 Rb6 Bc4 Rb3 Bf1 Rg3 fxg3 Be7 g4 d5 g5 Bd6 exd6 Bd7 Kf2 Bc6 Ke1 Bb5 axb5 c5 h4 g6 d7+ Kf8 h5 Ke7 hxg6 Qb6 Rh4 Qc7 Rh1 Qd8 d4 cxd4 g7 h5 Qe2 e5 Qg4 Rh6 Qd1 Rc6 bxc6 Kd6 Nh3 Ke6 Ng1 Ke7 Kf2 Ke6 Kg3 d3 Kh4 a4 g4 e4 c4 Ke5 c7 Kd4 c8Q e3 c5 a3 c6 a2 c7 e2 Nc3 Qf8 d8N Ne7 g8B Qg7 g6 e1Q+ Kg5 h4 Nh3 Qf8 Kf6 Qe8 g7 Qb5 g5 Qd7 g6 Qe8 Bh7 Qa4 g8N Nec6 g7 Qa5 Ne4 Qa4 Qe2 Qa8 Nhf2 h3 Bd2 h2 Ng3 Qa4 Ne7 Qad1 g8R Nb4 Ndc6+ Kc4 Ng6 Kb3 Ke7 N8a6 Ke8 Nc2 Bc3 Nd4 Qh3 Qdd2 c8B Nf3 Bd7 Ng5 Nh8 Kc2 Rg1 h1Q Na5 Qf3 Nfh1 Qff2 Bc6 Nc7+ Kf8 Na8 Ke8 Qd1 Rg6 Qde1 Rd6 Qf5 Bg2 Qef2 Bf3 Qg6 Rae1 a1Q Bh5 Qa3 Ra1 Qb3 Ra4 Qa3 Re4 Qh6 Ree6 Qg6 Rd8 Qh6 Rg2 Kb1 Red6 Ka1 Nf5 Nf3 Rg8 Ng5 Nfg3 Qe6+
N1B2Rq1/3p3Q/b1N5/N1p2Bp1/1r2pKBb/p7/1PRR2pk/N1BQ4 w - - 0 1 legal: proof: c4 a5 e4 h5 g4 hxg4 a4 f5 exf5 b5 cxb5 c5 d4 Kf7 d5 Nc6 dxc6 Ra6 Bh6 Ke8 Bc1 Nf6 bxa6 Nd5 Nc3 Nc7 Nb1 Nb5 axb5 Qb6 Ke2 Qc7 Ke1 Qd8 Ke2 Kf7 Ke3 Kf6 h4 Ke5 f4+ Kf6 b6 e5 b7 g6 b8N a4 c7 g3 h5 a3 a7 g2 a8B Rh6 Bd3 Be7 Nf3 Qg8 Nd4 Qf8 Nb3 Qd8 Nc6 Rh8 h6 Bd6 h7 Ba6 c8B Be7 N1d2 Qa5 Nc4 Qa4 N4a5 Rg8 h8Q+ Rg7 Qh7 Kf7 f6 Ke6 f5+ Kd6 f7 Bf6 f8R Bd8 f6 Kd5 f7 Rg8 Bf5+ Bd3 Rf1 Rh8 Rf2 Bh4 Rd2 Qc4 Rb1 Kd6 Na1 e4 Kf4 Qb3 Bab7 Qd5 Ba6 Bf1 Be2 Rg8 Beg4 Ba6 Rd8 Re8 f8N Re6 Qf3 Re8 Rc2 Qg8 Ne6 Rf8 Nc7 Rf6 Na8 Kd5 Nb8 Rb6 Rf8 Rb4 Bd2 Kd4 Re1 Kd5 Qd1 Kd6 Re2 Kd5 Ke3 Kd6 Bc1+ Ke5 Kd2 Kf4 Nbc6 Kg3 Ke3 Kh2 Kf4 Rc4 Rf2 Rb4 Rfd2 g5+
q1n2nRb/1K1B1qBB/3r1NR1/2Q4n/1P2rbBQ/k2qbR2/8/3Q2QN w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 b4+ Kd6 d4 a5 b6 e5 f6 c5 f7 h5 g6 h4 g5 a4 b7 c4 g7 a3 g6 a2 Be2 f3 Rh3 c3 Bb2 f2 Bg4 f1Q Ne2 c2 Rf3 c1Q Nbc3 h3 Ng3 h2 Nh1 Ne7 g8B Rh4 g7 Qd2 Bh7 Ra6 g8B Bh6 f8Q Be3 Be6 Nd7 b8R Bf4 Qg7 Nf8 Bd7 Nc8 Rb6+ Kc7 Rg6 Rd6 Qe7 Qff2 Qg1 Kb6 Rb1 a1B Rg8 Re6 d6 Qd3+ Kd5 e4 Qg5 e3 Ne4 e2 Nf6 Ka6 Kc6 e1B Qc5 Bed2 d5 Bde3 Rd1 Rh6 Rd2 Qff1 Rg2 Re4 Nh5 Qc1 Bh3 Qf6 Bde6 Rg6 d7 Qdc3 d6 Qf7 d8Q Bg5 d7 Bgf4 Nf2 h1N Qh4 Ng3 d8Q Qa3 Bh8 Qc2 Qdd1 Qcd3 Nh1 Bf6 Bd7 Rh6 Ng7 Nh5 Ne8 Qaa2 Bhe6 Bfd4 Be5 Qd5+ Kc7 Qa8 R2g3 Rf6 R3g6 Ba1 Bg4 Rd6 Bg7 Bc3 Bh6 Bh8 Nf6 Qad5 Kb8 Qc6 Qa7+ Kb5 Bg7 Kc4 Qb6 Qa8+ Kc7 Kc3 Qa5 Kb2 Qc5 Qad5 Kb8 Ka3 Kc7 Qc6+ Kb8 Qa4 Kb7 Qa8+
b1N1k1b1/4r3/2rRb2B/qN1RK3/3P1b1n/1QQ3BQ/1Bn1bQN1/N6n w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b4 g5 hxg5 a6 e3 Qd7 b6 Kd8 b5 Ke8 b7 Qd6 b6 Qd8 Bb5+ axb5 Kf2 h5 Kf3 c5 Kf4 f5 d4 h4 g4 c4 e4 c3 d6 c2 e6 h3 g6 b4 e7 h2 g7 b3 d7+ Kf7 e8N b2 e5 Be7 e6+ Kg6 g5 Nf6 g8N Qc7+ Nd6 Ra5 d8B Qc6 Nh3 Rb5 Qf3 Qd5 Qf2 Rh6 Ra5 Ne4 Na3 b1B Bb2 c1N Nc2 Na2 Na1 Nc6 b8B Ne5 b7 Nb4 Rf1 Bf8 e7 h1B e8Q+ Kg7 g6 Nc2 Ne7 Ba2 Bbc7 Be6 b8Q Nf3 Nec8 Nh4 Bg5 Ng3 Qc6 Rb7 Nb5 Qd8 Bd6 Re7 Ke5 f4 Qc3 f3 Nf4 Qc7 Ra6 Qa5 Ng2 Kg8 g7 Kf7 g8Q+ Ke8 Qh8 Rf6 Qfe3 f2 Bh6 Bab3 Rc1 f1B Qf2 Be2 Bc7 Bbc4 Rd6 Ba2 Qh7 Bac4 Qhf5 Rg6 Qh3 Bg8+ Kf4 Bce6 Ke5 Rf6 Qb7 Bg7 Qd5 Bf8 Qdb3 Rg6 Ne1 Ba8 Ng2 Nh1 Re1 Bef3 Re3 Be2 Rg3 Rf6 Rg5 Rg6 Kf4 Bg7 Rgd5 Be5+ Ke4 Bf4 Bb8 Bc1 Ke5 Rf6 Bc7 Bg5 Bb8 Bf4+ Ke4 Ng6 Ra6 Bg3 Be3 Nh4 Bh6 Bef7+ Be5 Rd6 Rb6 Be6 Bef4 Rc6 Ke5 Rcc7 Rbd6 Rc6 Qfe3 Be1 Bg3 Bd2 Qf2 Bf4+
1k2r3/2N1b1bK/B3r1Nb/B1q1QQr1/N2BR2P/B3R3/2N1n3/1qn1Q1r1 w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 g5 c4 f5 cxd5 g4 exf5 g3 Be2 gxh2 f4 h5 Ra3 h4 Re3 h3 Rb3 Be6 Ra3 Bf7 Ra1 Bh5 Nf3 Bg4 Rf1 h1R Ng1 h2 Rf3 Bh3 gxh3 Qd6 h4 Qd8 Kf2 Kd7 Ke3 Kc8 Ke4 e5 b4 a5 d4 c5 b6 a4 b5 c4 f6 c3 Kf5 c2 Kg6 a3 f5 e4 b7+ Kc7 d6+ Kb6 d5 Ka7 f7 a2 d7 e3 f6 Qc7 d8N Qe7 d6 Qe6 d7 Bg7 f8Q Qe5 f7 Qf4 Ba3 c1B Ne6 Rh7 d8B Qd4 Ba5 Nc6 Nc7 Nh6 Qe1 Qc5 Nc3 Re8 Na4 Ng4 b8B+ Kb7 b6 Nd4 Rh3 Nf2 Nf3 Rh5 Ba7 Rg5+ Kh7 Nd3 Rb1 a1B Rb4 Bab2 Bf1 Ne2 Nd4 Bh6 Nc2 Bbg7 Re4 Rhg1 Rf3 h1Q Rh3 Kc6 b7 Bcb2 b8Q Bbf6 Qb2 Be7 Qe5 Kb7 B7b6 Kb8 Rg3 Qd5 Bd4 Qc5 Rf3 Ndc1 Rh3 Nc3 Ba6 e2 Rf3 N1a2 Rfe3 Nc1 Qf2 e1R Qff5 Bd6 Qfe7 N3e2 Q7e6 Be7 f8N R5g4 Ng6 Rg5 Rf4 Qb7 Rfe4 Qb2 Qf1 Qb1 Q6f5 Rd1 Qe1 Rd2 Bdb2 Rd6 Bd4 Re6
2K2RQ1/Qb3R2/6P1/Bn1n1rBk/q1N4n/2q1RR2/Q2rNNN1/qqb5 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 Bh3 Kf7 fxg5 Be6 g6+ Ke8 g5 Bc8 Bg4 hxg4 Ke2 e5 Kd3 a5 Ke4 c5 b4 a4 d4 a3 h4 a2 h5 g3 h6 g2 f6 c4 f7+ Ke7 d6+ Ke6 b6 c3 d5+ Kd7 Kf5 e4 b7 c2 h7 e3 g7 e2 g6 e1Q b5 Ra7 b6 Qe2 Nh3 g1N Na3 Ra6 Nf2 Qc7 Rh3 Ra7 Nc4 Qc5 Re3 Qb4 Qd2 Na6 b8Q Qa5 b7 Ra8 Qa7 Qa3 b8N+ Kd8+ d7 Qe1 Ke6 Nf6 g8Q Bb7 Nc6+ Kc7 d8R Qa4 Nd4 Nf3 Ne2 Bh6 f8R Nh4 d6+ Kc6 d7 Nc7+ Ke7 Nb5 Rf7 Nd5+ Ke6 Bf4 Rdf8 Rd8 Rb1 a1Q Rbb3 Bh6 Ref3 Bg5 Rbe3 Qb1 Qda5 Qc3 Bd2 c1Q Be1 Qac2 Qa2 Qa4 Bd2 Qca1 Bb4 Qcc3 Ba5 Ra8 d8B Bh6 Bg5 Rd8 Re5 Rd7 Ne3 Rd8 Ng2 Rd7 Be7 Bc1 Bg5 Rd8 Ree3 Rd7 Qg7 Rg8 h8N Rd8 Re8 Rf8 Qg8 Rd7 Rh7 Rf4 Nf7 Rf5 Nd6 Rd8 Nc4 Rd7 Qa6+ Kc5 Rf7 Rd8 Nef4 Kd4 Ref8 Re8+ Kd7 Ree5 Re1 Re2 Qa8 Rb2 Ree3 Rd2 Nb6 Qbb4 Qa7 Qbb1 Ne4 Ke5 Ne2 Rf4 Kd8 Rf6 Nc4+ Ke6 Ngf4+ Kf5 Ng2+ Kg4 Nf2+ Kh5 Kd7 Rf5 Kd8 Ba8 Kc8 Bb7+
1NN2nBQ/P1nR2R1/1R5K/1r3rBN/qn6/Q3rBn1/5Nbb/q5kB w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 Ke2 Kd7 Kf3 e5 Kg4 b5 Kh5 h6 f4 b3 g4 b2 a4 b4 f6 e4 f5 b3 g6 e3 a5 e2 a6 e1N g7 Rh7 d6 Kc6 d7 Qc7 d8R Ne7 g8B Ng6 f7 Bb7 f6 Nf3 g5 Nd4 a7 Nh8 g6 Ne6 g7 Qf4 Qd4 Bd6 f8N Ng6 f7 Nc7 Nd7 Nba6 f8Q Nb4 Nc3 b1Q Be2 b2 Nd1 Rc8 Ra5 Qa1 Nh3 b1R Rb5 Rb3 Bf7 Rb8 g8B Re3 Rg1 Rh8 Qe7 Nf8 Rg7 Qe4 Be6 Bh2 Ndf2 Qc2 Qb2 Qca4 Nf4 Ba8 Qa3 Rb6 Qf6 Rh7 Re7 Rf7 Qh8 Rf6 Rg7 Rf5+ Kh4 h5 Bf3+ Rd5 Bf5 Rb8 Kg5 h4 Nh5 h3 Kh6 Rb6 Ra5 Rb5 B5e4 Bb7 Bh1 Ba8 Bef3 Bb7 Ne4 Rf5 Bd2 Re2 Bg5 Re3 Bh7 Kd5 c6 Kd4 Bg8 Ba8 Ra6 Bb7 Rb6 Ba8 Nc3 Kd3 Nd1+ Kd2 Ba2 Ke1 Nf2 Kf1 Nb8 Kg1 Rd4 Bd6 Rd3 h2 Bg8 Bf4 Rdd7 Be5 Bfd5 Bd6 Bhf3 h1N Bde4 Ng3 Bed5 Nce6 c7 Bf4 c8N Nc7 Bd1 Bb7 Bh1 Bg2 Bf3 Nf1 Nd3 Bh2 Nf2 Ng3
1bQ1nB1B/Q1r5/1b2b1r1/1Rn1P2R/3k1Kb1/1B1Nq1RQ/1nB1R3/1Nn5 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Ke7 Kf3 Kd6 d4 g5 e4 c5 h4 f5 e5+ Kc7 d6+ Kb7 d7 c4 a6+ Kb6 d5 Kc5 a7 c3 h6 c2 h5 Qe7 d8R Na6 b6 Qg7 h7 Nf6 d6 Be6 h6 Rg8 h8B Ne8 b7 Rc8 a8B Rc7 d7 Bd6 Bd3 Kd4 b8R Nc5 Ba3 c1N h7 Qg6 Nh3 g4+ Kf2 f3 Kg3 f2 Nf4 f1B Rh5 Rg7 Ra2 Bh3 Re2 Qg5 Rb5 Rg6 Kf2 g3+ Kf3 g2 Bd5 g1B Bb3 Be3 Qg1 Bf2 Bdc2 Bg4+ Kg2 Be3 Nd3 f4 Ra8 f3+ Kg3 f2 d8Q Bc8 Rab8 Bce6 Qc8 f1N+ Kg2 Nd2 Kg3 Ra7 R8b7 Nc4 Rg7 Bb8 Rg8 Nd7 Bf8 Nc5 Qf2 Nb2 Qf7 Ra6 Qa7 Rc6 Rg7 Rc7 Rg8 Bgf5+ Kf3 Qg1 Rg7 Rf6 Rg3 Bf2 Kf4 Rg6 Bf6 Bg4 h8Q Be1 Qh7 Ba5 Bh8 Bb6 Rg5 Ng7 Qh3 Ne8 Rh5 Qe3+
N6Q/1kn1BQnR/1q1n4/4N1PB/4qq2/Q3NbR1/B1Bnn1rb/2QK4 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Ra5 bxa5 Bg4 Ra2 Bf5 Ra1 Bc8 d4 Kd7 e4 h5 g4 f5 e5 c5 g6 Kc7 b6+ Kb7 e6 f3 d6 h4 g7 c4 d7 a3 e7 a2 e8B f4 d5 c3 g5 h3 d6 h2 Na3 c2 Bh5 Rh6 Nc4 Nf6 g8B Na6 Bd3 Ne8 Ba3 c1N Bc2 Ne2 Ne3 Nac7 Qc1 f2+ Kd1 f1N Nf3 Ng7 Ne5 f3 Rg1 h1Q Rg3 Qf6 d8Q f2 d7 Qe4 Qe8 Bd6 d8Q Nd2 Qde7 f1N Q8f7 Bg4 Bc5 Nc4 a6+ Kb8 a7+ Kb7 a8N Qff4 Rb1 a1Q Rb3 Nfd2 Ba3 Ka6 b7 Qad4 b8Q Bf3 Rb7 Qb6 Qbd8 Nce6 Rd7 Nc7 Qdf8 Kb7 Qef6 Nf5 Qh8 Ng7 Bc5 Be7 Bb4 Bd8 Be7 Nd6 Qb3 Rh7 Qba3 Rh6 Ba2 Rh7 Be8 Rh2 Bh5 Rg2 Bf6 Nge8 Rh7 Ng7 Qe8 Be7 Qf7 Bf8 Bd8 Be7 Nd7 Bf6 Be7 Bd4 Ne5 Bc5 N3g4 Bg1 Ne3 Bh2
3kq3/1q2b3/N3P2b/r1NBK1N1/QR3BR1/nQn1N3/Qnq4n/3Q1Bn1 w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qb3 a5 Qc2 Bf5 gxf5 g4 Qb3 g3 Qd1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qd7 Qa4 Qc8 Qd1 Qd8 d4 c5 Kd2 h5 Kd3 f2 Ke4 a4 b4 a3 g5 g2 d6 f3 b6 a2 d5 h4 d7+ Ke7 f6+ Kd6 g6 c4 f7 Ke7 b5 h3 b7 c3 b6 h2 d6+ Ke6 g7 c2 Na3 Qh4+ Bf4 c1N d8N+ Kd7 Qa4+ Nc6 b8Q Qg4 b7 Qh5 Ne6 Be7 f8Q Nd3 Nc2 Qe8 Qf7 Rh5 Nh3 g1N Rb1 a1B Nhg5 Nb2 Ne3 Nf6+ Kf5 Ne4 g8B Nc3 Qba8 Nbd1 Rb4 Nb2 b8N+ Kc8 Q8a7 Ne5 Nc5 Nec4 d7+ Kd8 Nba6 Na3 Qc4 Rh4 Ke5 Rh5 Bh3 f1Q Qcb3 f2 Bd5 Qc1 Bf1 Nh3 Rg1 h1Q Rg4 Ng1 Nc4 Qd2 e4 Qc2 Ne3 Qg2 Kd4 Qf3 e5 Qg2 e6 Qf3 Bb5 f1N Ke5 Nh2 Bf1 Qh1 Bdc4 Qb7 Qa8+ Qc8 Qg2 Qb7 Bd5 Nbd1 Qf2 Bb2 Qe2 Bc1 Qec4 Bd2 Qa2 Nb2 Qcb3 Bc1 Bdc4 Rh6 Nh7 Qg8 Ne4 Qe8 Bg3 Ngf3+ Kf4 Nd2 Nd5 Ndf3+ Kf5 Bcg5 Ne3 Rh3 Bb8 Bc5 Bf4 Bh6 Kf6 Rh4 Kf5 Rh5+ Kf6 Rd5 Nhg5 Rd6 Kf5 Ng1 Ke5 Ke7 d8Q+ Kf8 Nb8 Ra6 Qd1 Ke7 Bd5 Ra5 Na6 Kd8 Qda1 Qh5 Qd1 Be7 Nec5 Qe8
3R1bb1/1q2N1P1/1Q5r/2Nbn3/2bQ2b1/k1NNr2Q/1R2KB1Q/qr1BR3 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Nc6 Kf2 Nf6 Ke1 Na5 bxa5 Ng8 d4 Ke7 e4 Kd6 g4 f5 g6 h5 b6 c5 e5+ Kd7 b7 f3 b8Q h4 d6 Kc6 e6 a3 g5 h3 a6 f2+ Ke2 h2 e7 c4 e8R c3 g7 a2 d7 c2 d5+ Kc5 a7 f4 d6 Qf6 d8N Ne7 g8N Qe6+ Be3+ Kc4 d7 c1R g6 Qg4+ Nf3 Rh6 g7 Nc6 Ne7 Qg2 Ne1 Ne5 Ne6 Qb7 d8Q Kb4 Nc3 Ka3 Q1d4 Rb1 Nc5 Bh3 Rg1 h1B Ned3 Bd5 Qb6 Bc8 Bg2 Bg4+ Bf3 Bg8 Rd8 f1B+ Kf2 Bg2 Re1 Bh1 Bd1 f3 Re2 Bg2 Rb2 Bh1 Ke1 f2+ Kd2 f1B Bf2 Bhd5 Ke1 Nd7 Qh2 Ne5 Kd2 Rc8 Ke3 Rcc6 Qh3 Rcf6 a8Q+ Qa6 Qac6 Qb7 Qd6 Rf3+ Kd2 Nc6 Qdh2 Ne5 Nc1 Bfc4 N1d3 Qb8 Ke2 Qb7 Rc2 Rb3 Rac1 a1Q Rb2 Rb4 Ba4 Rb5 Re1 Rb4 Bd1 Rb5 Rc2 Rb1 Rb2 Re3+
3B1q1B/q2Qnn1N/6P1/2KR3b/1BNrk1nQ/2r2N2/1R4Br/3R1Rqr w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 h5 d4+ Ke4 g7 a5 b6 c5 d6 e5 g6 h4 b5 h3 b7 f3 d7 f2 d5 h2 d6 a4 f6 a3 f7 a2 f8N Nc6 b8R Nh6 g8R Ne7 b6 Nf7 Bd2 Ra4+ Bb4 Rh3 Kb5 c4 b7 c3 Na3 c2 Nf3 c1R Nc4 Rc3 Bg2 f1N Nh7 Qf8 d8B Bg4 d7 Ne3 Rf1 h1R Kc5 Bh5 Qe1 R3h2 Qh4+ Ng4 Rad1 a1Q Rg7 Nh6 Rf7 Qa3 Rf6 Nf7 Rfd6 Ng8 Bf6 Ne7 d8B Qa2 Bh8 Qf2+ Kb5 Qa7 R6d3 Ra2 Rd5 Rd2 Ra8 Rd4 b8Q Kf4 Qb6 e4 Qc6 e3 Qd7 e2 Rb8 e1Q Rb6 Qe3 Kc5 Qg1 Ba5 Qa8 Rb2 Ke4 Bb4 Qa7+
1B1RN1q1/1qP5/2bR4/8/k1qQQ3/2rR1NN1/Kn2nbN1/bQnR1B1n w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 h4 c5 hxg5 cxd4 e4 f4 g6 f3 g7 Ra6 g5 Rc6 g6 Rc5 Qd2 Rg5 Qd1 Rg3 fxg3 Nf6 g4 Ng8 g5 f2+ Ke2 Ba6 Bg2 f1B+ Ke1 Bc8 Bh3 Be2 Bg2 Bg4 Bf1 Bf5 exf5 Qb6 Ra3 Qc7 Ra1 Qd8 Rh3 d5 Kd2 Kd7 c4 h5 Kc2 e5 Kb3 e4 b6 Kc6 f6 d3 f7 h4 c5 Kb5 c6 a4+ Ka2 e3 b4 d4 b7 e2 Nd2 e1Q Ne2 Nf6 g8Q Nfd7 g7 Nc5 g6 Bd7 Qh7 Qc7 g8R Qeg3 g7 a3 Kb1 Bd6 f8N a2+ Kb2 Qg6 Ne6 Bg3 N6f4 Bf2 Ng2 Be8 Rb1 a1B+ Ka2 Qb6 c7 Nc6 b8Q Qg3 Qd8 Nb3 Qe4 Ka4 b5 Rh5 Rh8 Rc5 g8N Rc3 Nf6 Qg8 Rh6 Qb8 b6 Qa8 b7 Qc4 b8R Qb7 Qf3 Bd7 Nde4 d2 Ng1 d3 Ne8 Nd4 Qc2 d1N Be3 Ne2 Ba7 Bc6 Qd4 Nb2 Rd8 Qbb4 Rhd6 Qb7 Bb8 d2 Qh8 Bc5 Rg3 h3 Re1 h2 Qb1 h1N Qfd3 Qd4 Rf3 Qd5 Ng3 Bf2 Re3 Qc4 Nf3 Rc2 Qf5 Qg8 Qhe5 d1Q Red3 Qc1 Red1 Qf4 Qef6 Qfc4 Qd4 Rc3 Qfe4 Nbc1+
Q4Q2/4bKNB/3N2nr/N2Q3R/1b2B2Q/k1rbR1b1/1n1P1Rr1/2N2nb1 w - - 0 1 legal: proof: f4 f5 a4 b5 axb5 d5 e4 g5 c4 Bg7 b3 Be5 exf5 Bg7 f6 Nc6 cxd5 Bf8 f5 Nb8 h4 Bd7 g4 Bg7 h5 Bh6 Bb2 Bf8 Be5 Bc8 Bf4 gxf4 g5 Qd7 Ke2 Qe6+ Kf2 Qf7 Ke1 Qg6 hxg6 Be6 Bc4 Bd7 Bf1 Bc8 Kf2 Kd7 Kf3 Kd6 Kg4 Kc5 Kh5 Kb4 g7 e5 b6 c5 b7 a5 f7 e4 d6 a4 f6 a3 g6 e3 d7 e2 d8N e1B Qg4 a2 Qh4 c4 Ne2 c3 Nc1 c2 Na3 Be7 f8Q Bg3 f7 Na6 b8N Nc5 Ne6 Ba6 Nc4 f3 Bg2 f2 Nd6+ Ka3 b4 f1N b5 Nd3 b6 Nb2 b7 Bd3 Nc6 Rc8 Na5 Rc3 b8Q h6 Rb1 a1B Qa8 Rh7 Be4 Rh8 Kg4 h5+ Kf5 Rh6 Qd5 Nf6 g8Q Ng4 g7 Ne5 Qh8 Ng6 g8B Nc4 Qh3 h4 Bh7 Nb2 Qh2 h3 Ng7 Ka4 Ke6 Ka3 Qg2 h2 Qh3 Bg5 Qh4 Be7 Na2 c1B Qfa8 Rh5 f8R Rg5 Rf2 Rg4 Qhf8 Rg5 Rg1 h1R Kf7 Rh2 Rh1 Rh5 Nb4 Rh6 Na2 Rg2 Rh2 Na4 Rb7 Nb2 Rb3+ Ka4 Ngf5 Rc5 Qfe8+ Bb5 Ndb7 Nd3 Re2 Bb8 Qf4 Bd4 Qf8 Bg1 Ng7 Ba3 Rf2 Nb2 Nc1 Bb4 Re3 Bd3 Rh5 Ka3 Qh4 Bg3 Nd6 Rc3
1n1rK3/n1knB1B1/1R3B1Q/r7/QnN3R1/B3Q2P/N1b1Qn2/rb2bN2 w - - 0 1 illegal: No possible last move, all moves rejected
2qn1N2/RbB5/q4PQn/1nRKb3/k2B4/N3qQR1/3rQBQB/3q2n1 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nc6 f6 Rb8 f7+ Kd7 axb3 Ra8 b4 Nb8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 g5 h5 f5 a5 Be2 Ra6 Bg4 Rf6 gxf6 hxg4 Ke2 g5 Kd3 c5 Kc4 e5 h4 e4 b4 g3 d4 g4 h5 g2 d6 e3 b6 Kc6 d5+ Kb7 h6 Ka6 b7 a4 b5+ Ka5 h7 e2 d7 e1N d6 g3 b6 a3 Nf3 g1Q Kd5 g2 Nd4 c4 Be3 a2 Ne6 c3 Qe2 c2 Na3 c1Q Rh3 Qf2 Rg3 Na6 b8B g1Q b7 Qc2 Bc7+ Ka4 b8B Be7 f8Q Qgf1 f7 Bf6 Qg7 Nf3 f8Q Be5 Qg6 Ng1 Qff7 Qcc1 Nf8 Nh6 Bc5 Qf6 d8Q Qfe3 d7 Qfd1+ Bd4 Rg8 h8B Rg7 Ba7 Nb8 Qg8 Qb6 Qdf6 Nc6 d8R Bb7 Rc8 Qa6 Qff7 Rh7 Bf6 Rh8 Be7 Qcc3 Bed6 Rh7 Qff6 Rd7 Qff7 Rd8 f6 Qcc1 Qe4 Rd7 Qfg6 Rd8 Q4f3 Rd7 Rb1 a1N Ra8 Qcc3 Rb5 Nb3 Rc5 Qcc2 Bab6 Rd8 Ra7 Qf5 Ba5 Qc8 Be1 Rd7 Bf2 Rd8 Qgc2 Rd7 Qcd2 Rd8 Qg6 Rd7 Ba1 Nbd4 Qa2 Nb5+ Bd4 Rd8 Qad2 Qd3 Qdg5 Qe3 Qgg4 Rd7 Qg2 Rd8 Q4f3 Ne7+ Kc4 Qb1 Bc3 Bf4 Rgg5 Nc6 Bde5 Rd2 Bcd4 Qc2+ Kd5 Qd1 Rg4 Bg5 Bh2 Bf4 Rg5 Be5 Rg3 Nd8+
1kN2B1B/4PN2/2qNqQ1K/q2Q2rr/4RqB1/r7/N1q3RQ/1nq3bB w - - 0 1 illegal: No possible last move, all moves rejected
1q4n1/1B2q2R/1QPN2Nn/4QqB1/Qq1Rnr1Q/1K1B4/3k4/B1b1Nq1n w - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Kd6 g5 a5 Bc4 Ra6 Be2 Kc7 Bf1 Rf6 gxf6 Kd6 h3 g5 Bg2 g4 Qe2 g3 Bf1 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Qb6 Bg2 Qc7 Bf1 Qd8 Kd2 Kd5 c4+ Ke4 Kc2 e5 b4 h5 c5 d5 g5 h4 g6 d3+ Kc3 h3 b6 h2 g7 d2 b5 Ke3 b7 g2 b6 e4 Ra4 d4+ Kb3 d3 Nc3 Nd7 b8Q Ne5 b7 Rh4 Nb5 Qe7 Nd6 Ng4 Nf3 g1Q Ne1 N4h6 Rd4 Qg6 Qa7 Qh7 b8Q Rf4 Qab6 Qg6 Qh5 Qh7 Bb2 d1N Ba1 d2 Bd3 Nc3 Qh4 Qg6 Qe8 Qg5 Qa4 d1Q+ Bc2 Qf3 Bd3 Kd2 c6 Qe5 Ba6+ Qd3 Bb7 Be7 f8B e3 f7 e2 f6 Ne4+ Kb2 Bd8 Be7 Qef5 f8Q Bc7 Qc4 a4 f7 a3+ Ka2 Qc8 Qe8 Qb8 f8N Qe5 Bg5 Qe7 Ng6 Bd8 Nc2 e1Q Qa4 Qf1 Ne1 Bc7 Rg1 h1N Rg3 Bd8 Rh3 Bc7 Qbb3 Ba5 Qb6 Bc3 Kb3 a2 Ka3 Bb2+ Kb4 Ngf6 g8B Bc1 Bc4 Nfg8 Bca6 Qf8 Qe5 Qe7 Rd5 Qd4+ Kb3 Qf3+ Bd3 Qc5 Bb2 a1Q Rd4 Qg4 Qc4 Qa6 Ba1 Qf3 Qa4 Qaa5 Qh8 Qf5 Qe5 Qf1 Qg4 Nf7 Rh7 Nfh6 Qh4 Qb4+
Q2q3K/2r5/n2N1R1Q/1n1q4/qBR1Nq1N/1R1r1B2/n1RPB3/1q1nk2N w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kc3 Kd7 Kd4 Kd6 e4 a5 b4 h5 e5+ Ke7 d6+ Ke6 f5+ Kf7 f6 Ke6 d7 a4 g5 Kf5 g6 Kg4 g7 a3 f7 h4 f8N g2 b6 Kg3 b7 a2 e6 c5+ Ke5 h3 e7 h2 e8N c4 b5 c3 b6 c2 Nd6 Na6 b8R Nh6 g8B Qc7 Kf6 Nc5 Kg7 Ra3 b7 Qc8 d8R Rd3 Nh3 g1N Be2 f1Q Bd5 f2 Bdf3 Na6 Nc3 Nf7 Ba3 c1N Ng6 Rh7+ Kg8 Qe1 Rf8 f1Q Nh4 Qd8 Nf2 Nh3 Rb1 a1Q Rb4 Na2 Rc4 Qb1 Bb4 Qb3 Qc1 Qa4 Qa1 Qb1 Nce4+ Kf4 Rg1 h1Q Qg7 Qhg2 Nh1 Nf2 Rbc8 Nd1 b8Q Qgg5 Qa8 Qd5 Rg3 Qf2 Ndf5 Qf1 Qf6 Nd6+ Qe6 Re7 Kh8 Nb5 Qg6 Rc7 Nfd6+ Ke5 Rc2 Kd4 Qh7 Qf2 Qh6 Qe3 Rh3 Qf4 Rg3 Rf7 R8c5 Rc7 R5c4+ Ke5 Nhf5 Re3 Bh5 Re7 Beg4 Rc7 Nh4 Rf3 Rc6 Kd4 R6c4+ Kd3 Rh3 Qe7 Rf6 Ke2 Rg3 Ke1 Rh3 Rd3 Be2 Rd4 Rb3 Rd3 Bhf3 Qd8+
1Q3r1k/RbB1K3/5nRn/1R1bn2b/1Qr3pR/B3q2P/1Q1N1N2/r1N3N1 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e6 axb5 Qe7 c4 Qd6 cxd5 Qe7 d6 Qd8 d7+ Ke7 f4 Kd6 d5 Qe7 Bg2 Qd8 Bf3 Ke7 d6+ Kf6 Bd5 exd5 Kf1 Kf5 Ke1 Ke6 e4 Kf6 e5+ Kf5 e6 Kf6 Bd2 Be7 Qa4 Kf5 Ne2 Bf6 Qd1 Be5 fxe5 Kg4 Bc3 Kg5 Ba5 Kh6 Bd2+ Kh7 Bh6 Nf6 Bc1 Kg8 Ng1 Kf8 Qg4 Ng8 Qa4 Nf6 Qd1 Ng8 Kd2 c5 Kc3 f5 b4 g5 e7+ Kg7 e8N+ Kh7 h6 a5 b6 g4 b5 c4 Kd4 a4 Kc5 d4 b7 f4 e6 a3 b6 d3 e7 f3 Qa4 d2 Nf6+ Kg6 e8R d1B h7 Kg7 Re6 f2 Nd2 f1B Nfe4 c3 Rg6+ Kf7 Nf2 a2 Ba3 c2 Qb4 Qe7 d8B c1N Bc7 Bg2 h3 Qe2 d7 Ra4 Kd6 Bc2 d8N+ Kf8 Nc6 Bd5 Nd4 Nd3 Rh2 Nd7 b8Q N3e5 b7 Qe3 N4b3 Ndf6 Nc1 Nh6 Qb2 Rg8 h8R Rc4 Rb1 a1R Rh7 Rh8 Rg2 Nhg8 Rh4 Nh6 Rg3 Kf7 Rf3 Rf8 Rf4 Rc3 Ra4 Rc4 Ra7 Bce4 Qc3 Bd7 Rb5 Be8 Qb2 Bh1 Qc8 Bhe4 b8Q Bb7 Qf5 Bed5 Qe4 Nh5 Re6 Kg8 Rg6+ Kh8 Ke7 Nf6 Qf4 Rc3 Qfb4 Rc4 Rg5 Bh5 Rg8+ Kh7 Rg6 Kh8
KR1Rb3/3QNnRN/1R2r1q1/4q1Qr/1B1B2Q1/Pkn1qbp1/N2Q4/3b4 w - - 0 1 legal: proof: f4 a5 c4 h5 b4 f5 bxa5 d5 cxd5 e5 g3 Bc5 Bh3 Be3 Bg4 hxg4 fxe5 f4 Qb3 f3 Qd1 Bf4 gxf4 Ra7 Qb3 Ra6 Qd1 Ra8 Kf2 Kd7 Ke3 c5 Ke4 g5 d4 b5 h4 g3 e6+ Kd6 e7 b4 e8Q c4 f5 g2 h5 f2 a6 f1B a3 c3 a7 c2 f6 b3 f7 g4 f8B+ Ne7 h6 g3 h7 b2 Qg6+ Be6 Qg5 Bh3 Be3 c1Q Nc3 Qd7 Rb1 Qb5 Na2 Rg8 h8N Rg6 Nf3 Rg7 Ng6 Bc8 Rh7 Rf7 Rg7 Kd7 d6 Kc6 d7 g1Q d8Q Ng8 Bb4 Bg2 Qg4 Rd7 Qdg5 Rd5 Qd2 Nd7 Ne7+ Kb6 Bf2 Ne5 e3 Rd6 d5 Re6 d6 Bd7 Kd4 Qc7 e4 Be8 d7 Nf6 d8R Nf7 e5 Qc2 Be3 Rc8 a8R Rc5 Rab8+ Ka6 Bf2 Nd5 Be3 Qg6 Bf2 Rb6 e6 Nc3 Be3 Qa5 Bf2 Rf5 Kc4 Qe5 Bd4 Nd5 Kc5 Qge3 Q5h5 Rd6 Ng5 Bf3 Nh7 Rb6 Qhh4 Rh5 Qhg5 Nc3+ Nd5 Bb5 e7 Re6 e8Q Bbe2 Qd7 Bd1 Rc1 b1B Rc2 Nd6 Rb2 Bbe4 Kc6 Nf7+ Bd6 Ka5 Kb7 Bd3 Rb6 Bb5 Ka8 Ka4 Be7 Kb3 Bb4 Rc6 Ne7 Re6+ Qb7 Be8 Qc6 Bfe2 Qd7 Bf3+
1rkr1NqK/3RQ3/4rQ2/1R2b2P/2nn2p1/3B4/QqQRb1BR/1NnN4 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Kf3 e5 Kg4 a5 d4 c5 h4 e4 h5 a4 b4 a3 d6 e3 f6 e2 Kf5 e1Q b6 a2 b7 c4 d5 g4 b5 c3 f7 c2 b6 c1R Nh3 Qdh4 Bg2 Rc2 Nf2 Qc3 Rh2 Rc1 Qc2 Qe1 Nd1 Nc6 b8R Ra6 b7 Be7 f8N+ Kd8+ d7 Nf6 g8Q Ne8 g7 Qf1+ Kg6 Bf6 Qh7 Qh1 g8B Nd6 Qe7+ Kc7 Bf7 Nc4 d8R+ Bd7 Bg8 Nd4 Bh7 Re6 Kh6 Rg8 Bd3 Be5+ Kh7 Qg5 Qf6 Bb5 d6+ Kb6 d7 Kc7 Qe7 Qe1 Qf6 Qb4 Qe7 Qb2 Qf6 Rg7+ Kh8 Rg6 Ra8 Rg7 Ra5 Rge7 Ra7 Re8 Ra5 Ba6 Rb5 Qg6 Ra8 Rc8 Ra7 Kb8 d8Q Qf7 Qe7 Rd8 Na3 Qg6 Rb1 a1N Rd5 Nab3 Rb5 Qc3 Rb2 Rb1 Ra2 Rb2 Nb1 Nc1 Qb3 Rf2 Rd2 Qb2 Qa2 Re2 Rd5 Re3 Rd7 Bb5 Ra5 Ba6 Rb5 Rh3 Bde4 Rb3 Bd3 Qf7 Rc5 Na5 Bg6 Be2 Bd3 Nc4 Ra5 Qc3 Qc2 Qb2 Rad5 Ka7 b8Q+ Ka6 Qbd6+ Rb6 Qb4 Rbb8 Qa3+ Kb6 Qa2 Qg6 Rb7+ Kc6 Rbb5 Qg5 Qb4 Kc7 Qe7+ Kc8 Rd7 Qg8+
Knr2RQn/1Nkb3B/3nR3/b1b3Np/2R5/2P3B1/N1qNqR2/Qr3B2 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 e4 c5 exf5 b4 d4 cxd4 a3 Qb6 axb4 Qc7 b5 Qd8 Kd2 d5 Kd3 Kd7 f4 h5 g4 e5 c3 Nf6 g6 Bg7 b6 Ra7 b7 Rh7 a6 Kd6 g5 Ra8 a7 Qc7 Rh2 Nfd7 f6 Qc5 f5 Bh6 g7 Kc7 g8B Re7 g6 Bg7 f7 Nc6 f8N Bh6 b8N Nd8 f6 Nf7 g7 Be3 Ra6 Nh8 Nc6 Nb8 f7 Bd7 Nd2 Re6 Rh4 Qe7 Nd8 Rb6 Bh7 Rb1 g8Q Bf2 Nb7 e4+ Ke2 e3 Kd3 e2 Re6 e1B Ne2 Bg1 Rh2 Bg3 Rf2 Qe8 Qa4 Bd6 Qa1 Bb4 Ba3 Qe7 Nc1 Ba5 Na2 Qe8 Rg6 Qe1 Re6 Qc1 Be7 Qb2 Bh4 Qc2+ Ke2 d3+ Ke3 d4+ Ke4 Re1+ Kd5 Rb1 Nb3 d2 Bg3+ Kc8 Kd6 d1N Nd2 d3 Kd5 Ne3+ Kc5 Nc6 Kd6 Rb8 a8R Nc4+ Kc5 Nd6 Kd5 Bc7 Ra4 Ba5 Rc4 Kc7 Kc5 Rc8 Kd5 Kb8 Kc5 Bb4+ Kb6 Ba5+ Ka6 Kc7 Rb4 Nb8+ Ka7 Rd1 Ka8 Rb1 Rc4+ Bc6 Rf5 Bc5 Rf2 Bd7 Re5 Kc6 Ne6 Kb6 Ng5 Kc7 Ndf3 d2 f8R d1Q Nd2 Qf3 Re6 Qe2
1R2qN1B/1N3n1N/P1QbQ1n1/3qB1r1/Q3Q3/3BbrR1/BK1p4/2r1b2k w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 g4 c5 gxh5 b5 d4 b4 dxc5 Ba6 b3 Bb5 cxb5 a4 Qf3 axb3 Qe2 Ra6 Qd1 Ra8 Kd2 Kf7 h4 Kf6 a4 Ke5 f4+ Ke4 c6 g5 h6 d5 c7 e5 c8B d4 h7 b2 Kc2 g4 b6 g3 f6 g2 h5 Na6 h6 Nb8 f7 Ra7 b7 Qa5 f5 Na6 b8Q Bg7 f8Q Qb6 a5 Qd6 f6 Qd5 f7 Nc7 a6 Ne7 Qe8 Ng6 f8N Nb5 Ra3 Rf7 Qa8 Rg8 h8B Nd6 h7 Rf3 Nh3 g1B Be6 Nf7 Qec6 Be3 Ng5+ Kf4 Nd2 Kg3 Rd3 b1R Bb2 e4 Nb3 Be5 Na5 Bd6 Nb7 Kf2 Rh3 Kg1 Rg3+ Kh1 Rb3 Rg7 Ba1 Rc1+ Kb2 d3 Qe1 d2 Bd3+ Bg1 Qa4 e3 Qc8 e2 Qcc6 Rc3 Qb1 Rc1 Qbc2 e1B Q2c4 Bgc5 Qe4 Rg8 Be5 Be3 h8Q+ Nh4 Ngh7 Rg5 Qf6 Ng6 Rc3 b3 Rc4 Qc5 Rb4 Qa5 Bec4 Qd8 Qe6 Qe8 Ka3 b2 Ba2 b1Q Bh8 Qc2 Bae5 Qc4 Kb2 Bg1 Na5 Bgc5 Rb8 Be3 Nb7 Qd5
1k2K3/3rp3/Bq2rP1B/b7/NQR1nNBn/q1b4N/1B2nNR1/1Q1Q2q1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kd7 Kf3 Kc8 Ke4 c5 Ke5 a5 Ke6 h5 Kf7 h4 b4 h3 d4 c4 d6 h2 f6 a4 g6 c3 d7+ Kc7 d5 a3 d6+ Kb7 g5 a2 b6 f3 g7 c2 b5 f2 g6 Na6 Nc3 Qc8 d8Q Nb4 d7 Na6 Bh6 c1N Na4 Qc2 Nh3 Rc8 Rg1 h1Q Rg2 Rc6 Ke8 Nd3 Rc1 Qd2 Rc4 a1B Qb1 Nf4 Be2 f1Q Bg4 Rc8 Qb4 Ka8 b7+ Kb8 Qb1 Qd4 Qb4 Ka7 b8B+ Ka8 b6 Qfd3 Qb1 Ne2 Be5 Qhg1 b7+ Ka7 Qb4 Qb6 Bb2 Nc5 b8Q+ Ka6 Qe1 Rc6 Qb1 Ne4 Qd6 Ka7 Q8b8+ Ka6 d8N Qa3 Qdd1 Re6 Qbd6 Ka7 Qb4 Re5 Ne6 Kb8 Nef4 Re6 Bg5 Nh6 g8B Nf5 g7 Rh5 Bh6 Nh4 Bf7 Rd5 g8N Rd7 Bg6 Ng5 Be4 Bg7 Bb7 Ne4 Ba6 Bf8 Bg5 Bg7 Nh6 Bf8 Nf7 Bh6 Ne5 N2c3 Ned3 Ne2 Bc1 Bd4 Bb2 Bc3 Ndf2 Qf1 Ng6 Qg1 Be3 Bf4 Bec1 Bc7 Bh6 Qb7 Ngf4 Ba5 Bf3 Qb5 Bg4 Qb6
2Nq1bQB/B1pnN3/q4QQ1/1R1rN1r1/QP3N2/2k5/b1rb1n2/K1R1B3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 Bh3 Kf7 fxg5 Be6 g6+ Ke8 g5 Bc8 Bg4 hxg4 b4 Kd7 d4 Kd6 Kd2 e5 Kc2 a5 Kb2 e4 h4 g3 h5 a4 h6 e3 h7 g2 g7 e2 f6 e1Q g6 Bg4 b6 Bf5 b7 Nd7 b8B Qde8 f7 Be6 Ba7 Ngf6 g8Q Qf2+ Nd2 Ne5 g7 Rc8 Nh3 g1R Nf4 Bf5 Rh5 Qe3 Ne4+ Ke7 d6+ Kd7 d5 Qg3 Bd2 Rd8 Rc1 a3+ Ka1 a2 Be1 Qd3 Qa4+ Qb5 Rg5 Be6 Rf5 Neg4 Rg5 Be7 f8Q Nf2 Qff7 Rg4 Re5 Rg5 Qg6 Bf8 Rf5 Kc8 d7+ Kb7 d6 Qa6 Rfc5 Bc4 Rb5+ Kc6 Qe6 Rg8 h8B Rd5 Qef5 Ra8 d8Q Nd7 Qff6 Qe7 Kb2 a1B+ Kb1 Bd4 Qc8 Bc5 Ka1 Be3 Qd8 Bd2 Qc8 Nc5 d7+ Qd6 Qce8 Ba2 Qee6 Re8 Qeg4 Re6 Qg2 Qe7 Nd6 Qd8 Q2g4 Ree5 Qge6 Rg5 Nc8+ Bd6 Qef7 Re8 g8N Re2 Ne6 Bf8 Qfh7 Rde5 Qhg7 Kd5 Nf4+ Kd4 Nge7 Bf7 Qg8 Ba2 Rd1 Kc3 Rb1 Qe8 d8N Nd7 Nf7 Qd8 Rd1 Kc4 Rb1 Rd5 Ne5+ Kc3 Rd1 Re4 Rb1 Rc4 Rd1 Rcc5 Rc1+ Kd4 Rb6 Rc2 Rb5+ Kc3
Q1r1q1Nb/1P5Q/rQ4QR/2N3NR/q3b3/KR1n1p2/n1q1Bk2/1R2n2B w - - 0 1 illegal: No possible last move, all moves rejected
Q1b2r1N/RPk3qr/K7/1RqBn1b1/R1B1Brn1/3p2NB/3b1N1Q/5R2 w - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 f6 h6 g4 Rh7 g5 Na6 f5 Rh8 fxg7 Nb8 g6 Nf6 Bd2 Ng8 Bg5 hxg5 Kd2 e5 Kc3 d5 Kb4 Kd7 c4 g4 h4 e4 b6 a5+ Kb5 g3 b4 g2 f6 a4 f7 e3 h5 e2 b7 e1Q h6 d4 c6+ Kc7 c5 a3 h7 a2 Nc3 d3 Rh4 Ne7 g8B Qd2 g7 Qd6 Nge2 g1B Bh3 Bf2 Ng3 Qc2 Qd2 Ra7 Nce4 Bg1 Qh2 Qg2 Nf2 Na6 b8R Be6 Ka5 Ng6 b5 Qe5 Ra4 Bc8 b6+ Kd8 c7+ Ke7 Rf1 a1R Kb5 Qd6 c6 Nb4 b7 Nd5 Ra8 Nf6 Kb6 Ra5 Ra7 Rf5 Ka6 Ng4 Rb1 Ke6 Rb5 Be7 f8R+ Rf7 Rd5 Rf1 Rb5 Qgd5 Bg2 Qd4 Bh1 Q6c5 Be4 Bd7 c8Q Kd6 c7 N6e5 Qe8 Rf4 c8B Kc7 Bgd5 Bg5 g8B Be6 Bc4 Qd7 Rf5 Qg7 Bf7 Rf8 h8N Bd7 Bfd5 Rd1 Nfh1 Be3 Nf2 Be6 Bd7 Bd2 Qa8 Rf1 B7c6 Bc8 Bd7 Nf6 B7e6 Rh4 Rf4 Rh7 Bh3 Nfg4 Nd1 Re1 Rf1 Re3 Nf2 Ref3 Qh1 R3f5 Qh2 Rf4
r2r1nB1/N1p3bQ/6PK/k1rR4/1b2q2Q/1R1BrQ2/1R4n1/N2NN1rQ w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 Bd7 b3 Nc6 Ba3 Nd4 Bd6 Nc6 Bf4 gxf4 h3 Nb8 g5 Be6 Ra4 Bf7 Ra3 Bh5 Ra1 Bg4 hxg4 Qc8 Ke2 Qd7 Ke1 Qd8 Kf2 Kd7 Kf3 a5 d4 h5 d6 e5 f7 a4 d5 h4 b6 h3 f6 a3 b4 a2 b5 h2 g6 Ra3+ Bd3 Ra8 g5 e4+ Kg4 e3 g7 e2 g6 e1R Kg5 f3 b7 f2 b6 f1R Nf3 Qe7 Nc3 Ra7 Rb1 a1B Rb3 Re4 Ne1 Nc6 b8Q Na5 b7 Nh6 g8B Bg7 f8Q Qe8 f7 Ng4 Rg1 h1R Rg2 Ra4 Rgb2 Nc4 Qb1 R7a5 Nd1 Bd4 Qa8 R1h6 b8N+ Kd8 d7 Nb6 Qg7 Rc5 f8N Rh3 Qh7 Bg7 Ne6+ Ke7 d8R Rg1 Qb7 Ra8 Nd4 Re3 Ndc2 Nd7 Nc6+ Kd6 Na7 Qe4 Kh5 Bc3 Kg5 Bb4 Qc6+ Ke5 d6 Nf8 d7 Nf2+ Kh5 Nh3 Kh6 Nf4 Qb7 Kd6 Qc1 Ng2 Qb1 Qe8 Qf3 Qe7 Re8 Qe4 d8Q+ Nd7 Qh4 Nf8 Re5 Rd8 Nb5+ Kc6 Rd5 Kb6 Na7 Ra8 Ra2 Bd4 Rab2 Ka5 Na1 Nd7 Be6 Rhd8 Bg8 Nf8 Qc1 Rb5 Qc6 Rc5 Qb7 Nf4 Qfh1 Ng2 Qc6 Bdc3 Qcf6 Be5 Qf3 Bg7+
N2Bq3/1b2RB1k/2b1R2N/r2b2bB/4Kn2/8/QnpP1RN1/NQR2nr1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 Ke3 f5 b4 Kf7 g4 Kg7 e6 a5 d6 c5 g6 c4 d7 h4 g5 c3 e7 f4+ Ke4 h3 e8R h2 b6 a4 b5 f3 b7 f2 b6 a3 Qa4 a2 Nh3 Rh5 Nf4 Qf6 d8Q Rh8 Re7+ Qf7 Bb2 Rh5 Qd5 Ra6 Ng2 Be6 Na3 Bc8 Rc1 a1N Nc2 Bh3 Qaa2 Nc6 b8R Nd4 b7 Ndb3 Rbe8 Be6 b8Q Ra5 e3 Rh7 Be2 f1B Bh5 Ba6 Rhf1 h1B Rf2 Bb7 Ba3 Kh8 Bb2 Rh6 g7+ Kh7 Ba3 Rg6 Bb4 Nh6 g8N Nf5 Nh6 Ng7 Bc5 Qg8 Bb6 Bf7 Bc7 Ne6 Bd8 Nf4 Re6 Bg7 R8e7 Bc6 Qb5 Bf6 Qb8 Rg7 Qb5 Qe8 g6+ Kh8 Qf1 Bg5 Qe1 Rg8 g7+ Kh7 Qg1 Rc5 Qf1 Na5 Qb5 Nc4 Qbb1 Nb3 Na1 c2 Kf5 Ra5 e4 Nb2 e5 Nd4+ Ke4 Rh8 g8N Nf3 Nf6+ Kg7 Nd7 Nh2 Nb6 Rg8 Na8 Nf1 Rd6 Kh7 e6 Nh3 Rc7 Nf4 e7 Qd7 e8B Bb7 Qc6 Bb3 Bef7 Qe8+ Re7 Rg6 Qd5 Bc6 Kd4 Bb7 Rde6 Rg8 Nh4 Bf3 Ng2 Be4 Qe5 Bec6 Qd5 Bh4 Ne1 Rg1 Ng2 Bg5 Ke4 Bbxd5+
nRnnQR2/RN1Bn2r/K1B5/4p1N1/2P1Q2r/q1b3R1/k2N4/b2BrB2 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 f4 Nc6 g4 Bg7 f5 Nb8 Bf4 gxf4 h3 Bb7 g5 Bf8 Nc3 Bf3 Nb1 Bg4 hxg4 Qc7 Bg2 Qb6 Bf1 Qd8 Kd2 Kf7 Kc3 a5 Kc4 e5 b4 h5 g6+ Ke8 b6 d5+ Kb5 Kd7 g5 d4 b7 f3 g7 f2 c6+ Kd6 g6 Kd5 c7 a4 c8B a3 f7 h4 f6 a2 Nd2 h3 Qe1 h2 Ngf3 d3 Ng5 Ra4 Bd7 Qe7 Rg1 h1R Rg3 Nc6 b8Q R8h7 Qe8 Nd8 Qe2 Kd4 Qe4+ Kc3 Kb6 Kb2 b5 Rc4 Ka6 Qb4 b6 Ne7 g8B Nc8 b7 Qa3+ Kb5 Bc5 f8R Bb4 b8R Bc3 f7 Rd4 g7 R1h4 Be2 f1N Bd1 Ne3 Bc6 Nd5 Bd7 Ba5 Ka6+ Ndb6 c4 Rh1 Bh3 Re1 Bf1 Rh4 Bh7 Rd7 g8B Rb7 Bf5 Na8 Bd7 Bb4+ B1a4 Bc3 Bh7 Nd6 Bhf5 Nc8 Bb5 Re7 Bg4 Rb7 Bgd7 Rc7 Bbc6+ Rb7 Rd1 a1B Rb1+ Ka2 Rb4 Qc1 Bd1 Qa3+ Ra4 Rc7 Rh8 Rb7 f8N Rc7 Nfe6 Rb7 Ndf3 d2 Rf8 Rc7 Nc5 Rb7 Bde2 d1N Nd2 Ne3 Bd1 Rc7 Nb7 Nd5 Kb5 Nde7 Ra7 Ba5 Ka6 B5c3+ Bca4 Nf5 Bc6 Rch7 Bd7 Nfe7 Bc6 Qc1 Bd7 Qb2 Bac6 Qa3+
1B2kB2/5n1R/n1N1P3/1QB1Rp2/Qnr1q3/R3Bb2/b1r1N1nR/4Kb1Q w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 g4 Bb4 h4 Kd7 hxg5 Ba3 f4 Bc5 g6 Bd6 g5 Ke7 Bh3 Ke8 Bf5 Be5 fxe5 exf5 e4 h5 d4 a5 b4 c5 b6 c4 g7 f6 d6 h4 d7+ Kf7 g6+ Ke7 b7 f4 b5 f3 e6 c3 e5 h3 d5 h2 b6 c2 Nc3 f5 Nge2 a4 Na2 a3 Nb4 a2 Be3 c1N Qa4 Nc6 b8B Ra6 b7 Nh6 g8R Rh7 g7 Rb6 Rh8 Nf7 g8Q Rh4 Qg1 Qe8 Rh7 Nb3 d8B+ Kf8 d6 Nc5 d7 Rc4 Bdc7 Na6 d8B Rb5 Ba5 Rbc5 Bdb6 Rc2 B6a7 R5c4 Bac5+ Qe7 Bab6 Ke8 Bh6 Bd7 Bf8 Bc8 Be3 Bd7 Bbc5 f2+ Kd1 Qh4 e7 f1B Qg2 Qe4 Ke1 Be6 Qf3 Kd7 e8R Bd5 Bba7 Be6 b8Q Bd5 Qbb5 Be6 Rg1 h1B Bb8 Bhg2 Qh5 Bf3 Qh1 Bd5 Rg3 Be6 Rb1 a1N Rb3 Bd5 Rgh3 Be6 Re7+ Kd8 Rh2 Bd5 Rd7+ Ke8 Ra3 Be6 Nd3 Bd5 e6 Ncb4 Ne5 Rc1+ Kd2 Nac2 Nc6 Ne1 Ra7 Ng2 Rd7 Nf4 Ra7 R1c2+ Ke1 R4c3 Rd7 Ba2 Rd5 Rc4 Re5 Ng2+
1Rr1B1Rb/4r3/N1N5/r1B1PnQB/2n1Nqp1/7k/K3QB1N/bQ2qr2 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Bd7 gxf5 exf4 h4 Be6 h5 Bf7 Rh2 Nf6 Rh1 Bg6 hxg6 Ng8 d4 Kd7 Kd2 a5 Kc2 h5 Kb3 c5 e4 h4 b6 c4+ Ka2 g4 b4 h3 b5 c3 g7 c2 d6 h2 e5 a4 b7 a3 f6 Ke6 f7 Kf5 b6 f3 d5 f2 d7 Rh6 d6 Rh4 Bb5 f1R Be3 c1B Bf2 Rh7 Nf3 Ra6 Nbd2 Ne7 g8B Ng6 Qe2 Ra5 Rb1 Qf6 d8N Nc6 b8N Nge7 d7 Kf4 b7 Nf5 Ne4 Bg7 f8B Bh8 Na6 Bb2 b8Q Re7 Bf7 Ba1 Bh5 Rc1 Rf1 h1Q Nh2 Qh6 Rd1 Qe1 Rd6 Qg5 Rg6 Rc3 Rg8 Rc4 Kb3 a2 Ba4 Nb4 Ka3 Rc8 Nc6 Nd5 d8Q Nde3 Qb3 Qf6 Qbd3 Qg5 Rb8 Nc4+ Kb3 Qf6 Qb1 Re8 Qf1 Qg5 Na7 Qh6 B8c5 Qg5 Qf6 Re7 Bae8 Qh6 Nc6 Qg5 Nd6 Qh6 Bg1+ Kg3 Qf2+ Kh3 Ne4 Qf4 Qg5 Qe2 Qbe1 Bd4 Qb4 Qed2 Qe2 a1R Bf2 Rf1 Qb6 Qe1 Qb7 Na3 Ka2 Ba1 Qb1 Nc4+
2Nq4/2N1RN1B/1rP1Bb2/bnQ5/Q1qrR1r1/3Qp2k/n1K2Qr1/1B1N4 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 f4 Nc6 g4 Bg7 f5 Nb8 Bf4 gxf4 h3 Bb7 g5 Bf8 Nc3 Bf3 Nb1 Bg4 hxg4 Qc7 Bg2 Qb6 Bf1 Qd8 Kd2 Kf7 b4 a5 c4 d5 b6 e5 b7 h5 c6 d4 g6+ Ke8 g7 Kf7 b5 e4 g5 f3 g6+ Ke8 f7+ Ke7 c5 Kf6 b6 Kg5 f6 Kg4 c7 d3 c8N a4 c6 a3 Nc3 h4 Qa4 h3 Nd1 f2 Nf3 h2 Ng5 Ne7 g8B a2 g7 Ra6 Bh7 Nf5 g8B Nd4 Bh3+ Kh4 B3f5 Nb5 Re1 f1Q Re3 Ba3 f8Q h1R f7 Rg1 Qc5 Rg4 f8Q Bb4+ Kc1 d2+ Kc2 Rg2 Bge6 Ba5 Nf7 Rhg8 Qfd6 R8g6 Qd3 R6g4 Rb1 a1B Rb4 Bf6 Rc4 Nd7 b8N Ne5 b7 Rb6 Na6 Qe2 b8Q Qf1 Qdb3 Nd3 Nc7 Nc1 Qa7 Na2 Qd3 Qf4 Rd4 Qf1 Rd7 Qf4 Re7 Qf1 Rf3 e3 Rf4 Kh3 Re4 Qf4 Qa6 Qe5 Qf1 Qed4 Qf2 Qb4 Nb2 d1R Bfg6 Rd4 Nd1 Na7 Qd3 Nb5 Bgf5 Nac3 Ba2 Qc4 Bb1 Qcd5 Bd7 Na2 Be6 Qc4+
2N4B/b1rKN3/1Np5/1k1nQR1B/q2PbQ1N/2q1QQqB/4r3/n4Rq1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 h5 Kc4 a5 Kc5 e5+ d6 a4 f4 h4 g4 a3 b4 e4 f6 e3 b6 c6 f7 h3 f5 a2 g6 e2 b5 e1Q g7 h2 f6 Ba6 b7 Rh6 g5 Rh8 g6 Qc8 b6 Ra7 Na3 Qe4 Nf3 Rh3 Qe1 Rh4 Nc4 Nh6 g8B Qe7 g7 Qe6 Bb2 Rd4 Bh3 Rf4 Nh4 Be7 f8N+ Kd8 f7 Re4 Nd7 Qg6 f8Q+ Qe8 d3 Ng4 Bf7 Ne3 g8N Nd5 Bh8 Qc7 Bh5 Re6 Rg1 h1Q Rg5 Qg1+ Qef2 Re4 Rf1 a1Q Qf3 Re2 Rf5 Qf8 Q2e3 Qfg7 Rf2 Qge5 Rf1 Bf6 Ne7 Qa4 Nf8 Qea1 Nc8 Qcg7 d7 Q7g3 Nfg6 Bc3 Nce5 Qb2 Kd6 Bd4 Nge7 Bc4 B3g4 Na6 b8Q Nab4 b7 Nc2 Bh3 Na1 Ke6 Ba2 Nc4 Bb1 Qbf4 Bc5 b8Q Qc3 d4 Rb7 Qbd6 Be4 Qde5 Ba7 N4d6 Kc7 d8Q+ Kb8 Nc4+ Rc7 N4b6 Kb7 Ng8 Ka6 Nge7 Rb7 Qdc7 Kb5 Kd7 Rxc7+
1Q2rq2/1K5B/8/B3bNq1/1N1n1BQN/bPr5/Qbq1pRr1/2BRN1k1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 g5 a4 b5 axb5 g4 f4 Nd7 c4 Ne5 f6 Bb7 f5 Bd5 cxd5 Nf7 Kf2 Bh6 Ke1 Ng5 hxg5 Bf8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b3 c5+ Kc4 Ke5 g6 Kf4 d4+ Kg3 f7 Kf2 d6 a5 Kd5 e5 Kc6 e3 d5 a4 f6 e4 b6 g3 d7 a3 d6 a2 b7 c4 b8B g2 g7 h4 Nd2 c3 Ngf3 g1Q Bd3 c2 Ne1 e2 Ndf3 e3 Bh7 h3 Kb7 h2 Nh4 Nh6 g8N Qg5 Ne7 Rg8 Nef5 Bg7 Rg1 h1R f8Q Rh3 f7 Be5 Rg2+ Kf1 Qg7 Qf8 Rf2+ Kg1 d8B Rf3 Rb1 a1B d7 Bab2 Ba5 Ba3 Bbc7 Re8 d8N Rg3 Nc6 Rh3 Bb2 c1Q Nb4 Qc2 Bc1 Rg3 Qd2 Beb2 Ned3 e1B Bf4 e2 Qg6 Rf3 Qh5 Rg3 Qg4 Rg6 Ra1 Rg2 Rb1 Rc6 Ra1 Rc3 Rb1 Qfg8 f8Q Qh8 Qd6 Qhg8 Qb8 Qf8 Qe3 Bd2 Qea7 Be3 Ne1 Bd4 Bcd2 Be5 Rd1 Ng8 Bc1 Ne7 Qd4 Nc6 Qd2 Qd3 Qc2 Nd4 Qb1 Qd2 Qa2 Qc2
n1BQ1B1n/R1b1Q3/NRK1q3/Qp2q2N/1R1q4/r2N3b/3P4/R2nQq1k w - - 0 1 legal: proof: f4 g5 g4 b5 c4 d5 fxg5 f5 g6 f4 g7 a6 cxd5 f3 h4 Qd7 h5 Qd8 g5 a5 b4 axb4 exf3 Ba6 f4 Bc8 f5 Ra3 Bh3 Ra6 Bf1 Rg6 hxg6 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 a4 e5 f6 h5 f7 c4 a5 b3 a6 c3 a7 c2 a8R h4 R8a7 b2 Na3 b1N Ne2 h3 Nf4 h2 Bh3 Qd7 Qe1 Qe6 Nd3 Nh6 g8Q Na6 g7 Nc7 g6 Na8 Bf5 Be7 f8Q Nf7 Bb2 c1Q Nc2 Bd7 Ncb4 Qc3 Ba3 Rh3 Na6+ Qc5 Rg1 Nh8 Rg4 Bc8 Qff7 Bd8 Qh7 Ba5 g8R Bc7 g7 Rg3 Qh3 h1Q+ Qg2 Bd7 Rb8 Qf1 g8N Bc8 Nf6 Bd7 Nc1 Bc8 Bb4 Ra3 Nh5 Bd7 Qgf2 Bc8 Nd3 Nc3+ Kf3 Nd1 Ke4 Bd7 Rb6+ Bc6 Kf3 e4+ Kf4 e3 Qe8 Qd7 Ke4 e2 Qd4 Qg7 Bc8 Qgf7 Qc3 Qd7 Qf2 e1Q+ Qe2 Qh4 Qe1 Qhf6 Qd8 Qg5 Qdf6+ Qe6+ Qfe5+ Ke7 Rh4 Bd7 d6+ Kf7 Rf4+ Kg6 Rg4 Qcf2 Bc5 Qff6 Qa5 Kh6 Kd4 Qgf5 Rf4 Kg5 Bb4 Qd8 Q5e2 Qfe4+ Kc5 Qe3+ Rd4 Q3e4 Qe3+ Kg4 Qg5+ Kf3 Qe7 Kg2 Rc4 Bc6 d7 Kh1 Rd4 Qe8 d8Q Q4g4 Rf4 Bg2 Rd4 Bh3 Rc4 Qee2 Rf4 Qeg8 Kc6 Qe5 Bd6 Q8g7 Rb4 Qge6 Qg5 Qd4 Qc5 Qeg4 Bf8 Qge5 Qce7 Qge6+
3NB1r1/1Kb1Q1B1/R2Pp3/1Q2bkrr/bRN2N1r/5QB1/1n4q1/1q3Q1B w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Ke2 Kd7 Kf3 h5 Ke4 c5 b4 a5 d4 h4 f6 h3 b6 h2 d6 Ke6 g7 c4 f7 f3 d5+ Kd7 g6 a4 b7 c3 b8B c2 b5 a3 b6 a2 b7 f2 Nh3 Qa5 Bh6 c1Q Nf4 Qca3 Nd2 Qg3 Bb5+ Kd8 d7 f1R Qf3 Qg2 Nc4 Qb6 Rb1 a1B Rb4 Bd4 Be5 Rf2 Ra1 h1R b8Q Rh5 Ra6 Rg5 Bd6 Be5 Bc6 Rc2 Ba4 Qbg1 Qb5 Qb1 Bb8 Bc7 Kd4 Re2 Kc5 Nf6 Kc6 Ree5 g8B Ne8 g7 Nd6 Bh7 e6 g8Q Ke7 d8N Kf6 Be4 Bg7 Qe8 Rh5 Qd7 Reg5 f8Q+ Nf7 Qdd6 Bd7+ Kb7 Rh4 Qf1 Rg8 Bf3 Kf5 Qde7 Bge5 Bg7 Rhh5 d6 Rh4 Ba7 Rgh8 Bf2 R8h5 Bg3 Rc8 Qc5 Bb5 Bd1 Ba4 Qb5 Qh2 Bh1 Ra8 Qfe8 Qg2+ Qec6 Rc8 Qcf3 Ra8 Nc6 Rg8 Bb3 Nh6 Bd1 Ng4 Nd8 Nf2 Be2 Nd3 Bd1 Bc2 Be2 Nb2 Bd1 Bd3 Ba4 Be2 Qb6 Bd1 Be8 Bb3 Qb5 Ba4
1N2n3/2Q3B1/1K1p1N1r/QP3N2/r1RnQq2/1N1nRB1k/1B2b3/1Brq1n2 w - - 0 1 legal: proof: g4 b5 d4 c5 f4 cxd4 a4 f5 axb5 g5 fxg5 f4 h4 e6 e4 f3 g6 Qb6 g7 Be7 g5 Qd8 g6 Bg5 hxg5 f2+ Kd2 Qc7 Bc4 f1N+ Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Kf2 Ke7 c4 a5 b4 h5 f6+ Kd6 f7 Ke5 f8B Kf5 b6 d3 Ke3 h4 Kd4 e5+ Kc5 e4 b7 d2 b5 h3 Qe2 d1Q Ra4 e3 Nd2 h2 Bb2 Qc2 Ngf3 Kg4 Nb3 Qc1 Nh4+ Kg3 Nf5+ Kf4 Bg2 Qd1 Re1 h1N Bf3 Nf6 g8N Nc6 b8N Nd4 g7 Ng3 g6 Ne8 Nf6 Rh6 g8Q Nf1 g7 Ra7 Qc2 e2 Qe4+ Kg5 Rb4 a4 Qf7 a3 g8B a2 Bg7 a1R Bh7 Qe7+ Kb6 d6 c5 Rc1 c6 Qf8 c7 Ra4 Rc4 Be6 c8Q Bd7 Ng3 Bg4 Qd8 Kh4 Nf5+ Kh3 Qa7 Bh5 Qdc7 Qf7 Ng8 Qf6 Qa5 Qe5 Bg6 Qf4 Nf6 Qc2 Rd1 e1N Rd3 Qd1 Re3 Nd3 Qec6 Nb4 Ne7 Nd2 Bd5+ Kh4 Bb1 Be2 Bf3 Nf1 Nf5+ Kh3 Qe4 Nd3
1B2n2r/1R3RNR/q1PQ1Bbb/1R1K3Q/Bb1N4/2k1pqQ1/6n1/2q2B1q w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 h4 c5 hxg5 cxd4 e4 f4 g6 f3 g7 Ra6 g5 Rc6 g6 Rc5 Qd2 Rg5 Qd1 Rg3 fxg3 Nf6 g4 Ng8 g5 f2+ Ke2 Ba6 Bg2 f1B+ Ke1 Bc8 Bh3 Be2 Bg2 Bg4 Bf1 Bf5 exf5 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 e5 Kd3 Ke7 Kc4 Kd6 b4 h5 b6 e4 b5 Ke5 b7 h4 b6 h3 f6 d6 f7 e3 Na3 d3 Ne2 d2 Rb1 h2 Nf4 a4 Nh5 Ke4 Bb2 Nf6 g8B Be7 f8Q Nc6 b8B Ne8 b7 Bf5 g7 Qa5 g6 Qa6+ Nb5 a3 Bf6 a2 Bh7 a1B g8Q Bd4 Ng7 Nb4 Qh5 d1Q c3 Nd3 Rb4 Kf4 Kd5 Qc1 c4 Ne1 c5 Ng2 c6 Bd3 Rb1 Bc3 Nd4 Bb4 Bc7 Bd8 b8R Bf5 Rb5 Bc2 Ke6 Ke4 Bb8 d5 Qd6 Be7 Rb7 Bf8 Rb3 Ba3 R3b5 Bb4 Qf7 Bb1 Qfc7 Bd3 Qg3 Bb1 Qcd6 Bc2 Ne2 Kd3 Nd4+ Kc3 Bg8 Bb1 Ke5 Bc2 Be6 Bb1 Bg4 Bd3 Bd1 Bf5 Ba4 Bd3 Ngf5 Bh6 g7 Be4 g8R Bd3 Ng7 Bg6 Ndf5 d4 Rf8 d3 Rff7 d2 Nd4 d1Q Kd5 Ne1 Rg1 h1Q+ Rg2 Nf3 Rh2 Nh4+ Qhf3 Ng2 Rh3 Bf4 Rh7 Bh6 Qh5 Qf3+
kq2r3/6bn/qBpnqr2/P4B1N/Q1QR3n/1NKRQ3/5q2/B1Q1N1B1 w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 d4 Kd7 Kd2 Kc8 a4 e5 a5 h5 g7 b5 f6 Kb7 g6 h4 g5 h3 d6 h2 f7 e4 d5 c6 d7 b3 d6 e3+ Kc3 e2 Ra4 e1N Bh3 b2 Be3 Qf6+ Rd4 Qf4 d8Q Qf6 d7 Ng2 Qe7 Nf4 d8B+ Nd7 Bb6 Kb8 Nf3 Ne5 Ne1 Ng2 Bf5 Rh6 Nd2 b1Q Nb3 Qe4 Qc1 Nh4 Bg1 Nc4 Qe6 Qg2 Qee3 Qe6 Rd3 Nf6 g8Q Qe2 g7 Qf2 g6 Nd6 Qh8 Nh7 g8Q Kb7 Qhd4 Bg7 f8B Re8 Be7 Kb8 Bf6 Ka8 Qa4 b4+ Kd4 Bf8 g7 Rg6 Be5 Rh6 Qf7 Rf6 g8N Bg7 Nc2 Qd7 Ne1 Qb7 Qfc4 Qa6 Nd2 b3 Kc3 b2 Nb3 b1Q Rd4 Rff8 Nf6 Qe4 Nh5 Rf6 Rd3 Qef4 Kb4 Qe4 Ba1 Qe6 Kc3 Qa2 Bf2 Qb1 Rf1 h1Q Bg1 Qh2 Rf4 Qba2 Rfd4 Qaf2 Nf3 Qhe5 Ne1 Qeb5 Bc7 Qbb7 Bb6 Qb8
QQR2QBN/3p2r1/q6r/1n1Q2qk/R3q1r1/4b2K/PBN2q2/B1RB2b1 w - - 0 1 legal: proof: d4 f5 b4 c5 dxc5 a5 e4 axb4 exf5 Nc6 f4 Nb8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Ke4 Bd2 Kd5 Bc1+ Kc6 h4 b6 f6 Ba6 Nc3 Bd3 Nb1 Bf5 gxf5 Ra5 Qd2 Ra3 Qd1 Ra8 Be3 g5 Bd3 g4 Bc4 Na6 Bf1 Nc7 Bg5 Ne6 Bc1 Ng5 hxg5 Qc8 Ne2 Qb8 Ng1 Qd8 Kf2 e5 Kg3 h5 c4 b5 g6 h4+ Kg2 b3 g7 b2 Rh2 e4 Nc3 b1R Bb2 h3+ Kg3 b4 Be2 b3 Nd5 e3 Nf3 Rh6 Ne1 Ra4 Nf4 Ne7 g8B Nc8 Ng6 Nd6 Nh8 Nb5 Nc2 Qe7 Rg2 h2 Qd5+ Kc7 c6 Kd8 c5 h1Q Bd1 e2 Rf2 Qhe4 Rf4 Q4e6 Rb4 e1Q+ Kg2 Bg7 f8B Ke8 c7 Qa6 c6 g3 c8R+ Qd8 Rh4 Qf2+ Kh3 g2 c7 g1B Bd6 Rd4 Be5 Rg4 f7+ Ke7 Bed4 Be5 Bdc3 Kf6 f8Q+ Kg5 f6 Qe7 f7 Qec5 Qa8 Bf4 Qd6 Be3 f8Q Qcf5 Qdd5 Rc1 Ba3 b2 Be5 b1Q Bg7 Qb4 Bab2 Qe4 Bgc3 Qfe5 Rb1 Rg6 Ba1 Rg7 Bcb2 Rg2 Rg4+ Kh5 Rf4+ R2g4 Qb8 Qd3 Ra4 Qd4 Re8 Qdf4 c8Q Qfg5 Qcb7 Qe4 Rc8 Qff5 Q7a8 Qf2 Nb4 Rc6 Nc2 Rcg6 Rc1 Rh6
b2k3N/1rp4Q/Q1q4N/1R1r1r1b/n1RQRPRq/K3B3/B2q3B/1r5B w - - 0 1 legal: proof: g4 d5 e4 dxe4 a4 g5 h4 b5 axb5 f5 gxf5 g4 f4 Bh6 c4 Bg5 hxg5 Nc6 Bd3 Nb4 Bf1 Nd5 cxd5 Bb7 Nh3 Ba6 Ng1 Bc8 d4 a5 Kd2 e5 Kc2 h5 Kb3 h4 g6 h3 g7 e3 f6 a4+ Ka3 h2 b4 e4 d6 g3 b6 e2 d5 e1Q b5 g2 b7 e3 b8B e2 d7+ Kf7 d6 Qa5 b6 e1R b7 Qd2 Qh5+ Ke6 f7 Re5 f8Q Rc5 Nh3 g1R Nc3 Qg2 Nd1 Qh4 d8R Ra6 d7 Ra7 Be3 Qg6 Re8+ Ne7 d8Q Rg3 g8B+ Qf7 Ng5+ Kf6 Rc1 Rd5 Nf2 Bg4 Rc4 Rg1 Qh7 Bh5 Bg2 Rb1 Qfh6+ Qg6 Rg1 h1B Nf7 Rf5 Qd2 Nd5 Ree4 Nb6 Qd7 Raa5 Ba7 Rad5 Bf3 Bg2 b8R Bh1 Rg4 Bg2 Ka2 a3 Rb7 Na4 Rb5 Re1 Kb3 a2 Ka3 Rb1 Bac5 Bf1 Bh1 Bg2 Nd3 Bf3 Nde5 Bg2 Bg1 Bf3 Bce3 Bg2 Qc8 Ke7 Q6g7 Qc6 Qa6 Ke8 Nh6 Kd8 Ng6 Bf3 Qb2 a1Q+ Kb3 Bg2 Bh2 Qa2+ Kb4 Bf3 Be6 Rhf8 Nh8 Re8 Qb3 Qaf2 Ka3 Qd2 Qd3 Bg2 Bf7 Re6 Qd4 Red6 Ra5 Rdb5 Be6 Rb7 Rb5 Rdd5 Rcc5 Rd6 Ba2 Rdd5 Rc4 Rd6 Bb3 Qc5+ Rbb4 Rb5 Re7 Ba8 Re4 Rdd5 Ba2 Qc6 Rb2 Rb8 Rb5 Rb7
1B4r1/4QNR1/1b1RB1R1/rB1qQ3/r1NrR3/Qn2qkP1/2K1p3/3rQ2r w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 b5 h4 gxh4 a4 e4 axb5 Bf5 c4 Bg4 d6 Nc6 c5 Ne5 fxe5 Kd7 c6+ Ke6 d5+ Kf5 Kd2 Kg6 Ke1 Bd7 cxd7 Qe8 Ne2 Qc8 Ng1 Qd8 Kd2 Kg5 b4 Kf4 b6 f5 e6 c5 b5 h5 e7 a5 e8B e3+ Kc2 a4 b7 h3 b8R h2 b6 c4 b7 h4 Nf3 a3 Ne5 h3 Nd2 a2 Nf7 c3 Bc4 e2 Rg1 h1R Qe1 h2 Rb1 a1R Rb4 Qb6 d8Q Nf6 d7 Qe3 d6 R8a4 Qe7 Rg8 d8Q Nd7 Qa5 Nc5 d7 Nb3 d8R Kg4 Bc6 f4 B6b5 f3 Rd6 f2 Be6+ Kg3 Qa8 Ra5 Bb2 R1a4 Nc4 Bg7 Rf8 Bd4 b8Q Bb6 Rfd8 Kf4 R8d7 f1R Qaa7 Ke4 Bc1 Rf5 Qbc7 Rd5 Qc5 Qh3 Bf4 Qe3 Qb8 Rd4 Rb7 Ra3 Ra4 Ra1 Qa3 Nc5 Rdd7 Rdd1 Nd8 Rab1 Qb4 Rh8 Nb2+ Rd4 Qf8 Rd1 Qa3 Rc4 Rd2 Rg8 Rg7 Nb3 Nf7 Bc5 Rd3 Bb6 Qfe7 Rd2+ Kb1 c2+ Ka2 c1R Qbd6 Rc3 Kb1 Rb4 Qc5 Rcc4 Rd7 Rd5 Bb8 Rd2 Rd6 Rd3 Rf1 Rg1 g3 h1Q Rf6 Qg2 Qh5 Rh1 Rfg6 Qgf3 Qhg5 Qf5 Qgf6 Kf3 Qg5 Rch4 Kc2 Qd5 Qe5 Rbf4 Qd2 Rd1 Qe1 Rh1 Rc4 Rf6 Rcg4 Rf4 Rh4 Rfa4 Nc4 Rd4 Rhg4 Qb7 Re4 Qd5
1B2Q3/pBPBq3/1k2Nr2/1n2rqbB/Q2R1q2/6r1/1N4R1/K1RqN1Nr w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 axb5 f4 d4 cxd4 h4 g5 Bd2 Bb7 Be3 Be4 Bc1 Bf5 gxf5 Qf6 Ra3 Qb6 Ra1 Qd8 Kf2 g4 Qd2 Na6 Ke1 Nc7 Qd3 Ne6 Qd1 Ng5 hxg5 Bh6 Ra5 Bg7 Ra1 Bf8 Kd2 d5 b4 Kd7 c4 Kc7 Kc2 h5 Kb2 f3 e4 h4 c5 g3 b6+ Kc6 b7 g2 b8N+ Kb7 f6 d3 e6 f2 e7 h3 e8B d2 f7 h2 b5 d4 e5 d3 b6 Be7 f8N Rh7 g6 Nh6 c6+ Kc8 e6 Rh8 g7 Bg5 g8R Bh4 e7 Qd7 b7+ Kc7 Na6+ Kb6 b8Q+ Qb7 Bd7 Kb5 e8B Bd8 Ne6 Nf5 Bh5 Bg5 Nb4 Rh6 Qa4+ Kb6 Qe8 d1Q Nd2 Qf3 Nc2 Qf4 Ne1 Rf6 Ra3 Rd8 Ka1 Nd6 Bfe2 f1Q Bef3 Qf5 Rb3+ Nb5 Rb4 Rc8 Rd4 Ra8 Bd5 Q1f4 Ba3 Qbc7 Bd6 Qd8 Bb8 Qe7 Be5 Rd8 Bb8 Rc8 c7 Rd8 Nf1 d2 Bb7 Rc8 Ne3 Rd8 Bdc8 Rd5 Nd1 Re5 Nb2 d1Q+ Ka2 Qdd3 Bd7 Qdf1 Ka1 Q1d3 Ne2 g1R Rg7 Rg3 Rf1 h1R Ng1 Bh4 Rg4 Rge3 Rg2 Rg3 Nef3 Qdd2 Rc1 Bg5 Ne1 Qd1
8/2q3R1/2rk2B1/bb1b2Q1/1N3Rp1/1bQbr1q1/1B1NP1bQ/1B1RKR1B w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Qd2 f4 Qd3 Nc6 Qd1 Nce7 h3 Nf5 gxf5 g5 h4 g4 Ra6 Nh6 Ra4 Nf7 Ra1 Ng5 hxg5 Bh6 Ra5 Bg7 Ra1 Bf8 c4 Ke7 b4 a5 g6 d5 e6 h5 g7 f3 g8R h4 c5 a4 f6+ Ke8 b6 a3 b7 d3 b8Q d4 c6 h3 c7 a2 f7+ Ke7 b5 h2 b6 Kd6 b7 Rh7 e7 Ra6 e8B Rc6 Rg7 Bd7 c8B+ Qc7 Qb3 Rh3 Nd2 Bf5 Rb1 a1Q Qc3 Qa3 Bg2 Bd7 Bb2 f2+ Kf1 Rf3 Nh3 Re3 Rd1 Be7 f8R Bd8 Rg1 h1B Nf4 Bf5 Nd5 Bd7 Nf3 d2 Rf4 d3 Bg6 Qb3 Nb4 Be8 Re1 d1B Bcf5 d2 Bb1 Bc2 Rd1 Bd3 Qc8 Bd7 b8Q Be8 Qf5 Qa3 Rc1 d1B Nd2 Bb3 Rd1 Bd7 Qg5 Be8 Bh3 Bhd5 Bg2 Bd7 Bh1 Be8 Rg3 Bd7 Rgf3 Be8 Kg2 f1B+ Kf2 Bg2 Ke1 Bf6 Qc4 Bc3 Rf1 Bd7 Nc2 Ba5 Qc3 Rb6 Nb4 B7b5 Qh8 Rc6 Qh2 Qa4 Nc2 Qe4 Nb4 Qf3 Bh5 Qh3 Bg6 Qg3+
bN4Rb/rnkN1K1n/1pB4R/5nP1/Nn1N1b2/Q1B2n2/1bRBB3/Q7 w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 g3 h4 Bh6 e5 Bd7 f6 Bc8 f5 Qd6 f7+ Kd7 Rh2 Qf6 Rh1 Qg5 hxg5 Ra6 Bh3 Rc6 Bf1 Rf6 exf6 Bf8 Ke2 h5 Kd3 c5 Ke4 e5 a4 b6 d4 g2 d6 c4 Kd5 b3 a5 e4 a6 e3 a7 c3 a8B b2 Bd2 e2 Ra2 e1N Be2 c2 Bc6+ Kd8 d7 c1B Ke6 h4 d5 h3 Nc3 b1N Nf3 g1B Rc2 h2 Na4 Kc7 Nd4 Bd6 f8R Na3 f7 Bb7 d8N Ba8 f6 Bb2 Qa1 Nd7 Re8 Rh6 f8Q Bf4 Kf7 Nf3 Qb4 Nc5 d6+ Kc8 d7+ Kc7 Qa5 Nb7 Rf8 Bge3 Qa7 Be5 Qa5 B3f4 Qa6 Ne7 Rg8 Ng6 Qd3 Nf8 Qc3 Nb5 Qca3 Rg6 Be4+ Nc3 N8c6 Rh6 Nb8 Nh7 Bc6 Nd5 d8B+ Kc8 Q1a2 Nb4 Qa1 Rh4 Be7+ Kc7 Bf8 Rh3 Bg7 Rg3 Kg6 Rg4 f7 Rh4 f8N Rh5 Rd1 h1N Kf7 Ng3 Nfd7 Nf5 Rh1 Rh6 Bh8 Rd6 Bg7 Rd5 Bh8 Ra5 Rh6 Ra7 Nb3 Bd6 Bhc3 Bde5 Nd4 Bh8
Rr1NbN2/2B2R2/B4Q1b/3pQ1qN/p1bR1N2/K2B1kr1/P5n1/Bn4r1 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 e5 d4 c5 dxe5 g5 h4 Bh6 hxg5 Bf8 b4 bxc4 bxc5 Qc7 Na3 Qb6 Nb1 Qd8 Kd2 Kf7 Kc3 h5 Kb2 d5 f4 a5 g4 a4 e6+ Ke7 g6 Kf6 e7 h4 e8Q c3+ Ka3 c2 g7 h3 Nc3 h2 Qf3 Nd7 Bd3 Ne5 Nce2 Rh3 Bb2 c1R Ng3 Ra7 N1e2 Qd7 Rd1 Nh6 g8N+ Kg7 g5 h1B f6+ Kh8 f5 Kh7 g6+ Kh8 f7 Kg7 f6+ Kh8 Nf4 Ba6 Ngh5 Qg4 Ne7 Rg3 c6 Qg5 c7 Rb7 c8B Nf5 g7+ Kh7 g8R Bh6 f8B Rb8 f7 Bc4 Ba6 Rb1 Rd2 Rbg1 Rf1 Bg2 Bg7 Bh3 Ba1 Bg4 Qf2 Nf3 Bge5 Bh3 Rdd1 Nd2 Nc6 Bg4 Nd8 Be2 Ng6 Ne3 Qf6 Ng2 Bc7 Bg4 Qee5 Bd7 Rf4 Be8 Rd4 Qh4 Rb1 Qg5 Rb7 Nb1+ Kb2 Bg7 f8N+ Kh6 Ngf4+ Qg6 Qfe7 Qf5 Q7e6+ Kg5 Q6f6+ Kg4 Rh8 Kf3 Rg8 Nc3 Ka3 Bh6 Ra7 Qg6 Rg7 Qf5 Ra8 Qg5 Rf7 Nb1+
3b2B1/2Qr1N1Q/QRNbnBp1/1b2B3/1nk1KnR1/1p4Q1/2Pr1q2/1B1N4 w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 c5 a4 a5 d4 h5 dxc5 Ba6 gxh5 Bc8 b4 axb4 axb5 Ra5 Nc3 Ra4 Nb1 Ra8 Kd2 Kf7 Ke3 d5 f4 e5 h4 g6 c6 e4 h6 Qc7 h5 Bg7 h7 Qa7+ b6 Qb7 f6 Ke6 f7 Qd7 f8B Qa7 h6 Bc3 f5+ Ke5 c7 Qa5 b7 Ne7 f6 Bb2 f7 Bc3 Bg7+ Ke6 f8Q Be1 Qd8 Bg3 Be5 Nec6 Nc3 Na6 b8Q Nc5 Ra4 Ba6 Qe2 Ra7 c8B+ Rd7 Bb2 Qb6 Nf3 Bb5 Qdc7 Rd8 h8Q Bh2 Bf6 Bd6 Ne5 d4+ Kf4 d3 h7 e3 Nd1 Kd5 Qg7 d2 h8N Rg8 Nf7 Rgd8 Qh7 Ne6+ Kf3 Kc5 Ke4 Qa7 Qd3 e2 Qg3 e1B Qa8 Qb6 Bc4 Qa7 Ba2 b3 Ra6 Kb4 Ba1 Qf2 Bb1 Kc5 Rb6 Kb4 Ne3 d1N Rg1 Nb2 Qa6 Nd3 Nd1 Bd2 Bb7 Bg5 Ba8 Ndf4 Rg2 Ne7 Nc6+ Kc4 Bae5 Bh4 Qf3 Ned5 Rg4 Nb4 Qg3 Re8 Bg7 Bd8 Bgf6 Ree7 Bb7 Bc5 Bc8 Rd2 Bd7 Bd6 Bc8 Ng7 Bf5 Rd7 Be6+ Kc5 Bd5 Nge6 Nh6 Ng7 Bg8 Nge6 Nf7 Kc4
1BQR4/4Q1QR/1b1n1pp1/1nNq1N2/PK4b1/rBBRr1r1/2QB4/2b3k1 w - - 0 1 legal: proof: c4 a5 f4 h5 d4 e5 fxe5 c5 b4 axb4 g4 d5 cxd5 c4 gxh5 Qd7 Kd2 Qb5 Ke1 Qc5 dxc5 Bf5 Nh3 Bd7 Ng1 Bc8 Kd2 Kd7 a4 b5 h4 b3 Kc3 g6 e4 b2 e6+ Kc7 d6+ Kc6 d7 Bh6 d8B Bf8 e5 Ra5 h6 Ra8 e7 Bh3 e8Q+ Nd7 h5 Nf6 h7 Ne4+ Kb4 c3 h6 c2 e6 Bg4 e7 Nc3 Bd2 Kd5 c6 Kd4 c7 c1B c8Q Nf6 Qc2 Nfe4 Bc7 Nd6 Ra3 Bg7 Bc4 Rf8 Kb3 b4 h8Q Ncb5 h7 Rb8 Qed7 Re8 Nc3 Bf6 Qg7 b1R+ Qb2 Rb7 h8B Ra1 Bb8 Rb6 Qc2 Be5 Be1 Ke3 Nf3 Bd4 Bd2+ Kf2 Rh7 Rb7 Qdc7 Bb6 Nd4 Kg1 Ne4 Ra2 Nc5 Ra1 Qh6 Ra2 Be5 f6 Qg7 Ra1 Nf5 Ra2 Bec3 Ra1 Qb2 Ra2 Kc2 b3+ Kd3 Ra1 Qc2 b2 Bb3 b1Q Q7d8 Qa2 Qdc7 Rg8 e8R Rf8 Rd8 Re8 Qcf7 Rbe7 Qff8 Re2 Qge7 Rg2 Qfg7 Rg3+ Ne3 Nb7 Kc4 N7d6+ Kb4 Bh3 Qef8 Bg4 Nf5 Re1 Qfe7 Ree3 Bf7 Qe6 Bg8 Qe5 Bb3 Qd5 Ba2 Qf7 Bb2 Re5 Rd3 Ree3 Bb3 Qd5 Bbc3 Ra3
n3R1Bk/QrRrP3/N3r1bp/7Q/1Qnn1Kq1/1R6/R1B2Npb/N6N w - - 0 1 illegal: No possible last move
5nK1/r2b2r1/q2QB1Bk/1B1RNR2/P2bbpB1/2Nq2Rp/1R6/Q3n1Q1 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 a5 cxd5 a4 g4 a3 bxa3 Kd7 a4 Ke7 a5 Ke8 h4 g5 h5 h6 Ba3 Ne7 Bc5 Ng8 Bf2 Qf6 Bh4 gxh4 g5 Qd6 gxh6 Qd8 Kf2 f5 Ke3 Kf7 Kd4 b5 a4 h3 e4 f4 h7 Kg7 h6+ Kg6 a6 b4 a7 c6 d6 c5+ Kd5 b3 d4 c4 d7 c3 Ke6 b2 d5 c2 d6 c1Q Be2 Bb7 Ra2 Qh4 d8Q Qg3 d7 Qc8 Bg4 Qcc3 Nf3 Qa3 Nc3 b1B Qg1 Ne7 Rb2 Rg8 h8R Bc2 h7 Kh6 Kf7 Bc8 e6 Qg2 e5 Nec6 e7 Qh2 e8B Qf2 e6 Qfc5 e7 Qb6 Ne5 Kg5 Qc7 Qd6 d8R Na5 Bb5 Qa6 e8B Qd3 Rd5 Nc4 Qd6 Ne3 Rh2 Rg6 Rg2 Kh6 Rg3 Bg7 Rf8 Bd7 Kg8 Ng2 Rf5 Ne1 Bf7 Bc8 Be6 Nd7 Ra2 Nf8 Rb2 Rb8 a8B Bd7 Bac6 Ra8 Bb7 Ra7 B7c6 Bc8 Be8 Rg5 Bg6 Bd7 Nc4 Bd4 h8Q+ Nh7 Qf6 Nf8 Qfe5 Bd1 Qf6 Bf3 Ne5 Bh1 Qa3 Bf3 Qa1 Bg2 Qe7 Be4 Qd6 Rh5 Be8 Rg5+ Kh8 Rg7 Bg6 Re7 Kg8 Rg7+
4n1B1/2rB1Rnb/QKqQ1p1R/3RR3/8/3BN1q1/P1qN1N1p/kb3Br1 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 g5 f4 Ra7 fxe5 Ra6 Bb2 Ra8 h4 Ne7 g4 Ra6 Bd4 Nf5 Be3 Bb4 Bf4 gxf4 g5 Ne7 g6 Ng8 Nc3 Be7 Nb1 Bg5 hxg5 Ra8 Kf2 Kd7 d4 b5 e4 c5 d6 Kc6 g7 h5 a6 b4 d7 h4 d5+ Kb6 e6 Ka5 e7 h3 e8N c4 g6 f3 Ke3 f2 Kd4 f6 Kc5 c3 a7 b3 e5 Ka4 e6 c2 d6 b2 e7 Rh4 Nc7 Rb4 e8B Qe7 d8R+ Qd7 Nd2 Ka3 Nd5 b1B Ne3 Nh6 g8B Kb2 g7 c1Q+ Bgc4 Nf5 g8B Rb7 Qa4 Ng7 Qa6 Qe1 Bcd3 Rc7+ Kb6 Bb7 Rh2 Be4 Rh1 Qe6 Bd7 Bh7 Rf8 Qd1 Rf7 h2 Nh3 Qf3 Rg1 Qe5 Rg5 Qeg3 Re5 Qd1 Rd5 Qc2 Re5 Ne8 Rd5 Nc6 Re5 Rd8 a8R Nd4 Rd5 Ne6 Rc8 Ra7 Rc4 Rc7 Rh4 N6g7 Rh6 Qc4 Bg2 f1Q Nf2 Qe2 Bf1 Bc2 Re1 Bb1 Bc6 Qc1 d7 Ka1 Ba4 Rdc8 d8Q Qed1 Qd6 Qdc2 Bd7 Ra8 Qb5 Ra4 Qa5 Rg4 Re2 Qh4 Qa6 Rg1 Ng2 Qg3 Ree5 Q1d1 Ne3 Qdf3 Ra5 Qa8 Rad5 Qac6+
Kn3Nbk/2R1B1qn/QP1RprQ1/4q3/br1n1N2/1R5R/2BQp3/2B2Q2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 fxg5 e6 g4 Bc5 h4 Ba6 h5 Ke7 h6 Bd4 g6 Bg7 hxg7 Ke8 g5 Bc8 Ke2 c5 Ke3 h5 d4 a5 b4 a4 b6 c4 b7 a3 b5 c3 d6 c2 d5 a2 Kd4 e3 Kc5 h4 d7+ Ke7 Ne2 h3 Nd2 h2 Nb3 Ra5 Nf4 Ra4 Bd3 e2 Qf1 Qe8 Kb6 Ra5 d8R Nc6 b8R Bb7 Nc5 Ba8 Rd6 Rh6 Nd7 Qf7 Nf8 Nf6 g8Q Qe8 g7 Ra7 g6 Nh7 Rc8 Kf6 Rc7 Ra3 Rb1 a1Q Rb3 Nb8 Qh8 Qf7 g8Q+ Qg7 Bf5 Na6 Ka7 Ra4 b6 Bc6 Be4 Bd7 Ka8 Rb4 Bf5 Ba4 Qf7+ Ke5 Qd7 Kf6 Qb5 Nb8 Qa6 Qe5 Qg8 Qf7 g7 Qg6 Qh8 Qg4 g8Q+ Qg7 Be3 c1N Bc2 Nd3 Bd2 Ne1 Bc1 Nf3 Qf7+ Kg5 Qhg8 Nd4 Qd7 Rg6 Qgf7 Kh6 Qf5 Rf6 Qfd3 Qh5 Qe8 Qe5 Qd2 Qd7 Qh5+ Kg7 Qg6+ Kh8 Rdc6 Qe4 d6 Qg7 d7 Qe3 d8B Qe5 Rg1 h1B Rgg3 Bg2 Rh3 Be4 Be7 Bf5 Rd6 Bd3 Qgg1 Bg6 Qg3 Bf7 Qg6 Bg8
Brr1R2b/B2N2Bp/1Q3K1Q/2b4q/kp4rn/N3P2R/Q3N3/n1q2BQ1 w - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 gxf5 d5 cxd5 e5 b4 g4 h3 g3 Ba3 Be6 Bc1 axb4 fxe5 Bf7 Na3 Bh5 Nb1 Bg4 hxg4 Ra6 Qb3 Ra3 Qd1 Ra8 a4 Kd7 d4 b5 Kd2 c5 Kd3 c4+ Ke4 c3 f6 b3 Kf5 g2 e6+ Kc7 e7 Kb6 e8Q Ka5 d6 b2 d5 c2 g5 b4 d7 Ra6 d6 Be7 e3 Qc8 f7 Rb6 f8N Qc3 d8Q Nd7 g6 Bg5 g7 Bf4 Na3 b1Q Bb2 Nc5 d7 Nd3 Qeh5 c1B Rh3 Qbc2 Ne2 g1R Qh6 Rg4 Qb8 Q2d2 d8B Bd6 Nd7 Nc5 Qb3 Bf8 Qa2 Nb3 Be7 Rb5+ Bc5 Qd1 Ke6 Ne7 g8Q Qcc2 Bg7 Ng6 Ba7 Nh4 Kf6 Bc5 Qd6 Rb8 Qc7+ Ka6 a5 Bd2 Rc1 Na1 Qcd8 Qb1 Rc4 Qbc2 Re4 Qcc1 Re7 Be1 Re8 Qd5 Qc7 Qh5 Qd8 Kb7 a6+ Kc6 Nc2 Kb5 Na3+ Ka4 Qb6 Rb7 Bb8 Rc7 a7 Rc8 a8B Bg3 Ba7 Bf4 Qgd5 Bg3 Qh1 Be5+ Ke6 Bb2 Qg1 Rg8 Bf8 Bh8 Bg7 Rb8 Kf6 Rc8 Re4 Rgd8 Re6 Rb8 Re8 Rdc8
2q4R/k1N2p2/b1RN4/b4Q1K/2n2R2/Prqp1nQb/3B1N2/Qr1N2QB w - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 a5 c4 h5 gxh5 e5 f4 Rh6 fxe5 Rh8 b4 axb4 cxb5 Bd6 Bf4 Be7 Bc1 Bf8 Kf2 g5 Kg3 d5 h4 Kd7 Kg4 Kc7+ e6 Kb7 e4 d4 h6 b3 b6 d3 h5 b2 c6+ Ka6 e5 Ne7 c7 Kb7 a3 Rh7 Rh4 Qd5 Nc3 b1B Nh3 Bg7 Bg2 Ra7 Bd2 Ra8 Bh1 Qc6 Qg1 Bd7 Nf2 Nc8 Ncd1 Ba2 Rc1 Nd6 c8N Ka6 b7 Nc4 Nd6 Qc8 Rc2 Nc6 b8Q Rh8 h7 Nd4 h6 Nf3 Kh5 g4 e7 g3 e8Q g2 e6 Bc3 e7 Bh3 Rf4 Ba5 Qd7 Re8 Qbc7 Rb8 h8Q Rb1 h7 Rg8 e8N Rg5+ Kh6 Rgb5 Qf5 Rb6 Qa1 R6b3 Qe7 Kb6 h8R Ka6 Qee5 Ka7 Qf1 g1Q Kh5 Qg2 Nc7 Qg7 Qee1 Qc3 Qg1 Rb8 Qg3 Bb3 Qgg1 Ba4 Qg3 R8b3 Qeg1 Bb5 Rc1 Qg7 Rc3 Ba6 Rc2 Nb2 Rcc4 Qc3 Rc6 Nc4
1kb1rRR1/Np4qq/1P1nNr2/5Qb1/1NBQ1Q2/1N3Bqp/3K2R1/nQ6 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 d5 cxd5 c5 d4 g4 dxc5 g3 b5 Kf7 Ba3 Na6 Bb4 axb4 hxg3 Ke8 g4 Nb8 g5 Qa5 Ke2 Qc7 Ke1 Qd8 a4 Kd7 g4 Kc7 f4 h5 g6 e5 c6 b3 g7 h4 a5 e4 b6+ Kd6 f6 h3 f7 b2 a6 e3 a7 e2 f5 Rh5 g5 Qe7 c7 Nf6 g8B Nbd7 g6 Qe6 g7 Nc5 Qd4 Rh6 Nc3 b1Q+ Kd2 Qb3 Ra2 Qa4 Nf3 Qa5 Bg2 Rb8 a8Q Na6 Rf1 Ne8 f6 Be7 f8Q Nb4 f7 Kd7 d6 Rf6 Nd5 Nc6+ Nb4 Qc4 Rf2 Ke6 d7 Qad5 d8N+ Kd6 Ne6 Kd7 Qa3 Ra8 Qad3 Nd6 Qb1 Qh5 Bh1 Qh4 Rg2 Qh8 Ra5 Bd8 Rf5 Na5 Rf4 Qh7 Rf5 Qd5 Rf4 Nf5 Qc5 Rb8 f8Q Nd6 Qb5+ Qc6 Q5f5 Qb5 Bf7 Qe5 g8R e1Q+ Kd3 Qd1+ Nd2 Qde1 Nb3 Qg3+ Kd2 Ra8 Qh6 Qgg7 Rf1 Qeg3 Qhf4 Nc4+ Kd1 Ne3+ Kd2 Nc2 Rgf2 Qhh8 Bf3 Qhh7 Rg2 Na1 Qdb2 Rh6 Bd1 Qh4 Qbd4 Qhg3 Qfc5 Bg5 Nd8 Ra5 Qfe3 Rg6 Qcc2 Re5 Bc4 Re8 Rff8 Rf6 Qef4 Ke7 Qd5 Bd7 Qcf5 Bh6 Qd4 Bg5 Bf3 Be6 c8N+ Kd7 Qfd5 Bf5 Na7 Bg4 Nac6 Kc8 Na7+ Kb8 Qf7 Bc8 Ne6 Rg6 Qff5 Rf6
5R2/kn3R1n/2RR1N1Q/1q3pBP/K3n1qp/3NrNrN/4r2B/1Q1Q1b2 w - - 0 1 illegal: No proof kernel
8/2B3n1/KNNnnr1p/3N1N1R/2p1R3/1Q1qb3/Q1r1qQBP/3kBr1B w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 d4 Bd6 dxe5 Bf8 e4 f5 g4 fxe4 f4 Qf6 f5 Qd6 f6 Bf5 gxf5 Qd8 Ke2 Kf7 b4 c5 b6 g5 b7 a5 d6 e3 Kd3 h6 Kc4 a4 Kb5 c4 e6+ Ke8 e7 Kd7 f7 g4 f6 Ke6 e8B Kf5 d7 Kf4 Bg2 a3 Bd2 g3 Nc3 a2 Qa4 Ne7 Nd5+ Kg4 Ne2 Rh7 Nd4 e2 Be1 Nc8 Nf5 Nc6 b8N Bc5 f8Q Be3 f7 N6e7 Nc6 Rh8 Rd1 a1N Qa2 Nb3 Rg1 Rb8+ Ka6 Nd6 b5 Nd4 b6 Ne6 b7 Rh7 Bh1 g2 Rd4+ Kf3 Rh4 Rg7 Re4 Rc8 b8N Rg6 Qg7 Rf6 f8Q Rc7 Bf7 Rb7 Qh7 Rb2 Bg8 Qe8 d8B Qg6 Nd7 Rc2 N7b6 Qg3 Bc7 Qg6 Bg3 e1Q Qff7 Qd2 Be1 Ke2 Qhg7 Qh5 Qg3 Kd1 Rf1 g1R Rff4 Qd3 Rh4 Qg4 Rh5 Qge2 Qf2 Bd4 Qg7 Be3 Qgg3 Rf1 Bf7 Ng7 Be6 Ng6 Bc8 Bc5 Bb7 Nf4 Qgf3 Nfe6 Q3e3 Qdd2 Qeb3 Qdd3 Bc8 Bb4 Nfe7 Ng5 Bh3 Bc5 B3g2 N5e6 Nf5 Be3
Q5Nq/1bQ2N1B/n1BRp1b1/N1R2n2/3pB1Pk/1b2n1N1/1K3B2/3Rq1r1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 d5 axb5 g5 hxg5 c4 d3 cxd3 f3 a5 f4 e6 f5 d4 f6 Be7 fxe7 Kd7 Rh6 Ra6 Rh3 Rd6 Rh1 Rd5 exd5 Kd6 Nd2 Kc7 Nb1 Kd7 Kd2 f5 e8B+ Ke7 b4 h5 c4 a4 g4 a3 g6 Kf6 c5 Kg5 g7 f4 b6 h4 c6 h3 b5 h2 d6 a2 d7 f3 c7 f2 b7 Ne7 g8N Nbc6 b8R Nb4 b6 Rh7 b7 Nbd5 Qa4 Nb4 Na3 Nf5 Ne2 Nd5 Ng3 Nfe3 Nc4 Rh6 Na5 Qf6 d8N Rh4 Bc6 Rh3 Nf7+ Kh4 Qc4 Bd7 Rd8 Be8 c8B Nf5 b8Q Nb4 Qa8 Na6 Rd6 Qh8 Rb1 a1Q Rb5 Qb1 B8b7 Qb4+ Kd1 d2 Bd3 f1N Kc2 Qc3+ Kb1 d1B Rc5 Qe1 Kb2 N1e3 Bce4 Bda4 Bbc6 Bb3 Rf1 h1B Bc2 Qb4 Rd1 Qe1 Bcd3 Rh2+ Bd2 Rg2 Qc1 Nc2 Be3 Rg1 Bf2 Nce3 Qc4 Nh6 Bh7 Nhf5 Bde4 Bf3 Ng5 Bg6 Nf7 Nb4 Qb5 Na6 Qbb8 Be2 Qc8 Bec4 Qc7 Bd5 Bb5 Bb7 Be8 Kh3 B8c6 Kh4
1B1n1Q2/6bn/rNnP4/N1k1q3/p2pr1N1/1Qr3RR/2QqRK2/RB2N3 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 d4 c5 c4 d5 Bh6 Be6 Bf4 cxd4 Bc1 d3 Bh6 d4 Bc1 Bd5 cxd5 Qc8 Qf3 Qc7 Qd1 Qd8 h4 Kd7 b4 Kd6 f4 e5 h6 a5 h7 g5 f6 a4 f7 g4 b6 d2+ Kf2 e4 f5 Qf6 h5 Ra6 b7 Ra8 h6 Qe6 f6 Ra5 b5 Be7 f8N Ra7 f7 Ra5 b6 Rc5 Bd3 Bd8 Rh3 Rc6 Nc3 Na6 b8Q+ Bc7 b7 Nf6 Nf3 Nb4 Rg3 Ra6 Nd7 Qf5 Ne5 Kc5 Bb1 Nc6 Qc2 d1Q Bf4 Rc8 h8R Nd8 Re8 Nh7 f8Q+ Bd6 Ne1 e3+ Kf1 e2+ Kf2 Qd2 Re7 Nf6 h7 Qh5 h8R Nh7 N5f3 Be5 Nh2 Bf6 Bc7 Qhg5 d6 Bg7 Re4 Qe5 Nd5+ Kb5 Nb6 Kb4 Ng2 e1R+ Re2 Kb5 Qa7 Kb4 Bb8 Rc3 Qa8 Kc5 Qf7 Ng5 Rhh3 Nh7 Qfb3 Qh6 Rd2 Re4 Re2 Qd2 Ne1 Qeg5 Bc7 Qe5 b8N Qh6 Nc6 Qd2 Rd3 g3+ Kg1 g2 Ng4 Bh8 Bb8 Bg7 Kf2 g1N Rdg3 Nf3 Na5 Nfg5 Ba7 Nc6 Qf8 Ne6 Bb8 Ned8
3q4/4r1Q1/R1P4p/Qb4R1/3r2QB/N1b2K2/1bBB1n1p/R1RrqkBN w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 axb5 c5 dxc5 a4 exf5 Nc6 Bb2 Qc7 Bc1 Na5 bxa5 Qd8 Ke2 Kf7 f4 Kf6 g4 d5 c4 e5 a6 h6 b6 a3 g5+ Kf7 a7 h3 b7 e4 b8B d4 c6 e3 c7 a2 g6+ Kf6 c5 h2 c6 d3+ Kf3 d2 g7 e2 Na3 e1B Qa4 d1R Bd2 Bg3 Nh3 Rc1 Qa5 Qd6 Nf2 Rc4 Bd3 Qd8 Bc2 Bb4 Rhc1 Ba6 c8Q Rd4 Nh1 Bc3 Bd6 Bb5 Bc5 Rb8 a8R Rb7 Ra6 Re7 Qd7 Bb2 Ba7 Be1 Qc8 Kf7 f6 Rh7 f5 Rh8 Bg5 Bec3 Bh4 Rd1 Bg1 Rh7 Qac7 Red7 Qa5 R7d4 Rab1 a1Q Qd7+ Ne7 g8R Rg7 Qc8 Rh7 Rg3 Ng6 Rg5 Nf4 Qd7+ Qe7 Qc8 Nd3 Qd7 Nf2 Qe6+ Kf8 f7 Qd8 Qg6 Ke7 f6+ Ke6 f8B Rc7 Bb4 Ra7 Qh5 Re7 f7 Kf6 f8Q+ Ke6 Bf5+ Kd5 Qg4 Ke5 Qg7+ Kd5 Nc2 Kc4 Bh7 Qa2 Ra1 Qb1 Rg6 Kd3 Rg5+ Kd2 Na3 Ke1 Bc2 Kf1 Bc5 Rdd7 Be3 Rd4 Bf4 Qa2 Be3 Qe6 Bd2 Qe1
R1q1bQqb/1R2Nn1p/2B5/r3N1k1/1nP2R1n/3Q2BB/Np3K2/3bB2N w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 b4 axb4 f3 Ra4 f4 Ra8 fxg5 b5 h4 Qc7 g4 Qb7 g6 Ra4 h5 Qc7 g5 Ra6 g7 Rg6 hxg6 Qd8 c4 d5 a4 e5 a5 Ke7 c6 e4 a6 b3 a7 e3 a8R d4 f6+ Ke6 f7 Kf5 c7 b4 Bd2 b2 Nh3 b3 Nc3 b1N Na2 e2 Bg2 d3 Nf2 b2 Rf1 Qd4 Nh1+ Kg4 Rf4+ Kh5 Bc6 Bd7 c8B Bc5 f8B Be8 Bh3 Qd8 Bd6 Nh6 g8Q Bd4 g7 Qc8 g6 Kg5 Qf8 Nf7 g8N Na6 g7 Nb4 Ne7 Bc3 Kf2 e1Q+ Kg2 Qe5 g8N Qg7 Nf6 Qg8 Be1 Nd2 Ng4 Nf3 Kf2 d2 Ne5 Nh4 Qe2 d1B Qd3 Qg6 Rb8 Rg8 Rb7 Qge6 Ng4 Bh8 Ne5 Qg4 Nc3 Rg6 Ra8 Rh6 Bb8 Rh5 Na2 Qge6 Bd6 Qg6 Bb8 Qg8 N5g6 Ng2 Rd4 Kf6 Bg3 Ra5 Rf4+ Kg5 Ne5 Nh4
4N1q1/2QKpBb1/4P2q/1B1BQ3/4n2b/pq1R3r/1Qb2rRN/4NBNk w - - 0 1 legal: proof: c4 a5 b4 g5 f4 b5 fxg5 d5 cxd5 Nh6 a4 Ng8 axb5 a4 g4 h6 g6 Bd7 g7 Rh7 g5 Rh8 g6 Bg4 Bb2 Bc8 Bf6 Nc6 Bg5 Na5 bxa5 hxg5 Kf2 Kd7 Ke3 Kd6 Kd4 f5 h4 c6 e4 f4 e5+ Kd7 Kc5 f3 d4 f2 d6 Ke6 b6 Kf5 d5 Ke4 d7 g4 h5 a3 b7 g3 b8Q g2 d6 Ba6 h6 Be2 a6 Bc4 h7 Qc8 d8N Be2 d7 Nh6 g8B Bb5 a7 Be2 g7 Bd3 Qb2 Rb8 a8B Kf4 Nb7 Kg3 d8Q Nf7 Nd6 Be2 Qc7 Rb4 Nd2 Ng5 Ndf3 Bd3 Qde2 Bc2 Ne1 Rf4 Ra2 Ne4+ Kb6 c5 Kc6 c4 Bd5 c3 g8B Qa6+ Kd7 Bg7 Ne8 Qh6 Bgf7 Rf3 e6+ Rf4 Ngf3 g1Q Bac6 Qg2 Ng1 Qgh3 Bg2 f1Q Bb5 Qf3 Qe3 Qg4 Bgf1 Qgg5 Rh5 Qgg6 Rg5+ Kh2 Rg2+ Kh1 Rd2 Qfg3 Rd3 Rf2 Qef4 Qe3 Qfe5 Qb6 Bbc4 Qb3 Bb5 Rf8 h8N Qgh7 Bg8 R8f3 Bf7 Qg8 Ng6 Rh3 Nh4 Bd1 Ba8 c2 Nhf3 c1B Bd5 Bg5 Nh2 Bh4 Qa1 Rf4 Rg2 Bc2 Qab2 Rf2
4K3/1q1Qp1N1/1B1NP1QB/qr6/b1rp2rk/Q1Nn2b1/1BBR1N2/q2R4 w - - 0 1 legal: proof: f4 b5 c4 g5 fxg5 d5 a4 c5 d4 cxd4 axb5 Bd7 Ra2 Bf5 Ra1 Bc8 cxd5 Nc6 g4 Bg7 h4 Na5 h5 Nc6 g6 Qd6 g5 Bf8 g7 Qd8 Ra3 Ne5 Ra1 Ng6 hxg6 Qc7 Rh2 Qd6 Rh1 Qd8 Kd2 a5 Kd3 f5 Kc4 h5 Kc5 a4 Kc6 h4 b4 a3 e4 f4 e5 f3 b6 f2 d6 h3 b7 a2 b8Q h2 b5 Qa5 d7+ Kd8 e6 Rh6 b6 Nf6 g8N Qa6 g7 Qe2 g6 Ra3 b7 Qb2 Qa7 Qe2 b8B Qc2+ Nc3 Rh3 Bbf4 Ra5 Qd3 Ba6 Nh6 Ne4 g8N Rg3 g7 Nc5 Nf6 Qd2 g8Q Rb5 Nh3 Rg4 Ne8 Bg7 Bb2 Be5 Rd1 a1Q Nf5 Bc8 Be2 f1R Bh6 Bg3 Qg6 Re1 Qf3 Nd3 Nfg7 Ba6 Rf1 h1Q Nd6 Qg5 Rd2 Rc1 Bd1 Qe5 Bc2 Qe1 Ne2 Qg2 Rd1 Qea5 Rd2 Bc8 Qd5 Qe4 Rfd1 Qh1 Qc5 Ba6 Bb3 Rc4 Nc3 Rh4 Nf2 Rb8 Bc2 Rg4 Nde4 Rb3 Qd6 Bb5+ Kd5 Ba4 Qb5 Qg2 Qa3 Kc7 d8B+ Kc8 Bb6 Qf3 Bc5 Kc7 Qbe8 Rb5 Qef7 Kb8 Kc6 Qh1 Kd7 Qg2 Ke8 Kc7 Qff5 Qf3 Ba7 Qh1 Nc5 Kd6 Bb6 Qb7 Qf3 Ke5 Qc6 Rcb4 N5e4 Rc4 Ng5 Kf4 Qd7 Bh4 Nf7+ Kg3 Nh1+ Kh3 Nd6 Bg3 Nf2+ Kh4
1rQ3n1/p4pRK/2bk4/3NN2B/q1r2Q2/6NR/RP1NBBR1/qrn3q1 w - - 0 1 legal: proof: f4 e5 c4 exf4 g4 d5 cxd5 b5 a4 h5 gxh5 c6 axb5 Bd6 b6 Bc7 bxc7 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 Kd7 Kf3 g5 Kg4 f3 h4 c5 e4 c4 d4 f2 d6 c3 h6 c2 Kh5 g4 h7 g3 e5 g2 e6+ Kc6 d5+ Kc5 d7 Qe8 d8R Qc6 e7 Qe6 e8N Bb7 c8B Qe4 d6 Qf4 d7 Qc4 Qg4 Kc6 Qf4 Kc5 Be3+ Kd5 Be2 f1R Nd2 c1Q Nc7+ Kc6 Rh3 Na6 Nd5 Nh6 Bf2 Nc5 Rg8 Ba6 d8Q Q4c3 Ra2 Na4 Rg7 Qa5 Bcg4 Nc3 Qc8+ Qc7 Rg3 Rd8 h8N Bb7 Ng6 Ng8 Ne5+ Kd6 Kg5 Qd7 h5 Re8 h6 Qa1 h7 Bc6 h8R Rb8 Rhh3 Rb1 Bh5 Rb4 Rg4 Rc4 Rgg3 Nb5 Rg4 Nd4 Rgg3 Nb3 Rg4 Ne7 Kh6 Nc1 Kh7 Rd8 Bd3 Re8 Ne2 g1Q Rg2 Ng8 Ng3 Qg4 Bf1 Qd1 Bfe2 Qa4 Qa6 Ra8 Qc8 Rb8
bN1B1K2/B2R2rk/3RQ3/3n3N/1R1NR2P/qB1qp1b1/BnQ2p2/b2b4 w - - 0 1 legal: proof: e4 d5 f4 Kd7 a4 g5 c4 gxf4 cxd5 b5 axb5 Bb7 d6 Ke6 d7 Kd6 Qf3 Ba6 Qd1 Bc8 d4 Ke6 d5+ Kf6 d6 a5 Qc2 Ra6 Qd3 Rc6 Qh3 Rc5 Qxh7 Rd5 exd5 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 e5 Kc3 c5 Kc4 a4 h4 a3 b4 a2 g4 f3 b6 e4 b5 f2 g5+ Ke5 g6 Kf6 g7 Bb7 Nf3 Ne7 g8B Nc8 Be3 Na6 Nd4 Bc6 b7 Qa5 b8N Be7 d8Q Qa3 b6 Ba4 b7 Bc6 d7 Nc7 d6 Nd5 Qb6 Ba4 d8R Bd1 d7+ Bd6 Qf5+ Kg7 Nd2 Bg3 Qbe6 Rh7 Re8 f6 d8B Ncb6+ Kb5 c4 Kc6 c3 Bc4 f1B Bb3 Bh3 Nf1 Na4 Kd7 c2 Qf2 c1Q Qc2 f5 Rh2 f4 Rd2 Bh2 Ng3 f3 Nh5+ Kh8+ Re7 f2 Ke8 Bg2 Rd7 Nb2 Bf7 Qa6 Kf8 Rg7 Rb1 a1B Ba2 Na4 Rb4 Bg3 Re2 Qb2 Rb6 Qbb5 Rbd6 Nb2 Nbc6 Qd3 b8R Qda3 Qf5 Q3d3 Rb4 Nc3 Nf3 Nb5 Ba7 Qaa3 Bfb3 Nc7 Qe6 Kh7 Nfd4 Bf3 Nb8 Bh1 Re3 Bg2 Rf3 e3 Rf4 Ba8 Re4 Nd5
5Br1/2rbr2k/nbN4p/2r1Q1Qq/2QR3R/2B1N3/K1p1RPR1/BqB5 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 g6 h4 b4 h5 b3 h6 Bb7 axb3 Kd7 b4 Ke8 b5 Bc8 g4 Bb7 g5 Bg7 Be2 Bd4 Bh5 gxh5 g6 Bc8 g7 Nf6 Na3 Ng4 Nb1 Nd7 g8R+ Nf8 Ra4 Bg7 Ra2 Nf6 Qg4 Kd7 Ra1 Ne6 Qf3 Bf8 Qd1 Ng7 hxg7 Ke8 b4 Kf7 d4 a5 Kd2 e5 Kc3 c5 Kb2 a4 d6 a3+ Ka2 h6 b6 c4 d5 h4 d7 e4 b5 h3 b7 h2 b8Q c3 d6 c2 b6 e3 b7 e2 Nd2 e1R Qg4 Qe8 d8R Re6 d7 Nh5 f6 Re1 Ne2 Nf4 Nd4 Ne2 Nc6 Ra5 Nc4 Rc5 Qg5 Nd4 Ne3 Ne6 Qbe5 Nc7 b8B Na6 Bc7 Bd6 Ba5 Bc7 Bc3 Bb6 Rb1 Rh7 Rb4 Re2 Re1 h1R Rh4 Rg1 Ba1 Rd2 Bc3 Rd6 Re2 Re6 Qg4 Rg3 Qc4 Kg6 f7 Re7 f8B Qf7 Rh8 Qf3 g8Q+ Rhg7 Qgd5 Qh5 Rg8 Kh7 Qg2 R3g6 Qgg5 Rgf7 Re8 Rfg7 d8B Bd7 Rd2 Rgf7 Rdd4 Rgg7 Qgf6 Rg1 Rg2 Rg7 Qfg5 Rgf7 Kb3 a2 Bc7 a1Q Bd8 Re6 Bf6 Qb1+ Ka3 Ree7 B6g7 Qb5 Ka2 Qb4 Ba1 Qb1+ Ka3 Qf3 Qef5+ Kg8 Qgf4 Rd1 Rd5 Rg1 Rgg4 Re4 Bgc3+ Rg7 Nd1 Qe2 Rd4+ Be6 Qf6 Kh7 Qh2 Qb5 Ka2 Rc7 Rg3 Qh5 Rg8 Rge1 Rg2 Rg4 Qhf4 Rg8 Q6g5 Bd7 Re6 Re4 Qh2 Rg4 Re2 Re4 Ne3 Re7 Qhe5 Qb1+
1nn3R1/2Q2qBb/kr2P1p1/N1n3RR/3BQq1b/2n2p2/2Q1R3/2NKQ1N1 w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 f5 axb5 e5 fxe5 f4 Bh3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Nf6 Ra1 Ng8 h4 Kd7 d4 c5 b4 Kc7 e4 Kb6 f6 c4 e6 c3 h5 g3 h6 f3 f7 g6 h7 a4 e5 c2 d6 g2 d7 a3 e7 a2 e8R Nh6 d5 Ka7 d6 Qa5 d8R Nd7 b6+ Kb7 Bb2 c1Q Bd4 Qb5 Nc3 Qd5 b5 Bg7 f8B Qb1 Nce2 Qc1 Rh5 Qa3 Qc2 Qe6 Kd1 Qg4 Nc1 Nb8 d7 Rg8 h8Q Bf6 Bg7 Qf8 Rg5 Nf5 Qh4 Ne7 Qe1 Qf7 Rb1 a1N e6 Rf8 Rb2 Qf4 Rh5 Rh8 Rg8 Bh4 Rdf8 Rh7 d8Q Nb3 Qd6 Nc5 Qde5 Bd7 Q5e4+ Bc6 Rd8 Rh8 Rdd5 Nc8 Ra2 Be8 Rb2 Ka8 b7+ Ka7 b6+ Ka6 Rdg5 Rh7 Nh3 g1N Ra2+ Na4 Rb2 Ne2 Ng1 Nc6 b8Q Nc5 Qc7 Nb8 b7 Bf2 Rh3 Bh4 Rh2 Rh5 Rg3 Rd5 Rg5 Rd6 Rb5 Rb6 Rh5 Nd3 Rbg5 Nc5 Ba1 Nd4 Re2 Nb5 Bad4 Q7f6 Re5 Bf7 Rf8 Nc6 Reg5 Bg8 Re8 Qf7 Rd8 Bh7 Rg8 Nb4 b8N+ Ka5 Nd7 Ka6 Ne5 Nc6 Nc4 Nb8 Na5 Nc3+
k2BQ2q/2r1P3/6Br/p1Nb2Nb/1Qp1K3/4B1R1/Qn1BQb1R/2b2Rq1 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 Kf2 Kd7 b4 h5 d4 c5 e4 Kc7 f6 Kb7 e5 a5 d6 c4 f7 h4 d5 f3 Ke3 h3 d7 g3 e6 h2 e7 g2 g6 f2 d6 Qb6+ Ke4 Bh6 d8Q Be3 f8Q Kb8 d7 Bh6 g7 Kb7 Nh3 g1B Qfe8 Qf6 b6 Qc3 b5 Be3 Ng5 Bf4 Nd2 Ra6 Qe2 Bb8 Nb3 Ra8 Bd2 Ra7 Nc5+ Ka8 Qc7 Qf6 d8B Nh6 g8R Bg4 Qcd7 Rc7 b7+ Ka7 Bh3 Nf7 Rf1 Bh5 Bf5 Rh6 Bg6 Qh8 Be3 Ne5 Qdd2 Nd3 Qa2 Nb2 Bd2 Rc8 Rg7 Bf4 b8B+ Ka8 b6 Be3 Bf4 Rc7 b7+ Kb8 Bc3 Bc1 Bcd2 Ka7 Bfe3 Kb8 Re1 f1Q Rg8 Qf2 Rf1 Qg3 Rgf8 Qe1 R8f3 Bf2 Rg3 Ka7 Rhg1 h1B+ R1g2 Rd7 Kf4 Rc7 Rh2 Kb6 b8Q+ Bb7 Qc8 Ka7 Qb5 Bd5 Qb4 Bg1 Qd7 Ka8 Qe8 Qf2+ Qf3 Qg2 Qe2 Bf2 Kf5 Qg1 Kf4 Bf7 Ke4 Bd5+
rr4Rr/1QQB2R1/1pn2Q2/NNkPb3/1n1p2b1/1RB2N1b/K1N5/5r1R w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 d4 Ra4 dxc5 d4 Bh3 Ra3 Bf1 Qd5 cxd5 Ra8 Kd2 Kd7 Kc2 e5 Kb3 g5 a4 g4 h4 b6 f4 g3 a5 g2 f6 e4 f5 e3 c6+ Kd6 a6 e2 c7 e1R h6 Re2 h5 Be6 c8Q Nc6 f7 Ne5 h7 Nf6 h6 Ra2 a7 Ra6 Na3 Nf3 Bb5 Rb8 a8N Ng8 f6 Bh3 Qdc2 Ra7 Bd7 Ra4 Rb1 Bg7 f8Q+ Ne7 f7 Ra7 Bb2 Ra6 Ka2 Ng5 Nc7 Bf6 Bc3 Ra4 Rb3 Rba8 Qb7 Be5 Nb5+ Kc5 Nf3 g1R Qd8 Rf8 h8N Rf1 h7 Ne4 Ng6 Rb8 h8R Nf2 Rh7 Raa8 Rg7 Rh8 f8R Nc6 Ne7 Nd3 Rfg8 Bg4 Nc8 Bh3 Ncd6 Bg4 Nc4 Bh3 Na5 Bg4 Rb1 b3+ Ka1 b2+ Ka2 Bh3 Qf2 Bg4 Nc2 Bh3 Qdc7 Nb4+ Kb3 Bg4 Qh4 Bh3 Qf6 Bg4 Ra1 b1B Ra3 Bh3 Kb2 Bg4 Rb3 Bh3 Nce1 Bg6 Nc2 Bh5 Ka3 B5g4 Kb2 Na6 Ka2 Nb4+
3R2n1/QrB1rRP1/1NN2N1n/n4Br1/4Q3/k4pb1/1rQB2p1/1b2BQK1 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Qe7 gxf5 g4 h4 Qg5 hxg5 exf4 Kf2 Kd7 e4 Kd6 b4 h5 d4 a5 b6 c5 b7 a4 g6 a3 f6 a2 b5 c4 e5+ Kc7 f7 Kb6 d6 Ka5 b6 Kb4 e6 c3 d7 c2 d8N h4 g7 h3 d5 h2 d6 Na6 b8B Rh4 d7 Ka4 e7 Rh5 e8Q Kb3 b7 Nb4 Bd3 Rh4 Nc6 Nd5 d8B Bd6 f8Q Ne3 Ba5 Bf5 Bcd2 Rh5 Nh3 Rg5 Bbc7 Rb8 Rf1 h1R Nc3 Ka3 Nd5 c1R Qc2 Rh2+ Kg1 g3 Qe4 Re1 Nf2 Ng4 Rd1 a1N Nb6 N4h6 Ng4 Nb3 Nf6 Bg6 Bac3 Na5 Qf7 Re3 Be1 Rhe2 Bcd2 g2 Qf8 Ra8 b8Q Ra7 Rf3 Rb7 Qa7 Bf5 Qee8 Bh7 Bf5 Rb3 Qff7 Re7 Rf2 Rb5 Qfc4 Rb2 Qf1 Rf7 Qee4 Re7 Bc3 Be5 Rd8 Bd6 Bcd2 f3 Re2 Bg3 Re3+ Rb3 Red3 Bg6 R3d6 Rb2 Rf8 Bf7 Rdd8 Ba2 Rf7 Bb1
1Q2r2n/1B1QpPnb/5b1k/1BRr4/2B1b1QN/2Np2Q1/b1N2B2/2K1R2n w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Qc7 g5 Qb6 g7 Qg6 hxg6 Nc6 Rh3 Nb8 Rh6 Ba6 Rh1 Bc8 Kd2 h5 b4 d5 c4 a5 b6 d3 b7 d4 f6 a4 b5 h4 c5 a3 b6 a2 c6 h3 c7 h2 Qg4 Nd7 b8Q Rh5 b7 Ne5 Nc3 Nh6 g8B Bg7 Bc4 Kf8 f7 Nf5 Nf3 Bf6 Nh4 Ng3 Qd7 Kg7 Rb1 a1N Rb5 Nc2 Rc5 Ne3 Bb5 Kh8 g7+ Kh7 g6+ Kh6 g8Q Nef5 g7 Ng6 Ba3 Nh8 Kc1 Rg5 Be2 Rh5 Re1 h1B Bb4 Bg2 Ba5 Bd5 Bb6 d2+ Kc2 d1B+ Kc1 Kg5 Qa7 Ne4 b8N Bcb7 c8B B5b3 Rc6 Neg3 Na6 Bd5 Nb4 Ba2 Bec4 Bc2 Bc5 Bd3 Nc2 Kh6 Rc7 Bg2 Bb7 Re8 Qb8 Nh1 Rc8 Nfg3 Bb6 Bh7 Rc7 d3 Bf2 Rd5 Rc5 Rf5 Qf8 Be4 g8Q+ Kh5 Qgg7 Rd5 Qfg8 Nf5 Qgg3 Kh6 Q8g4 Ng7
1bQn2k1/2Qp2PR/QRQN1pR1/1n2nB2/2b2brr/3B2n1/3RB3/2NK4 w - - 0 1 legal: proof: d4 c5 dxc5 e5 a4 b5 axb5 Qc7 f4 Qb6 fxe5 Qd8 h4 g5 g4 Nf6 h5 Ng8 Bf4 gxf4 g5 Qf6 Qd4 Qb6 Qd1 Qg6 hxg6 Be7 Kf2 Bd6 Ke1 Bf8 c4 h5 b4 a5 e4 f3 e6 h4 g7 f6 b6 h3 b5 a4 e5 a3 b7 h2 b6 a2 g6 Ke7 c6 Rh7 c7 Rh8 c5 Ke8 e7 Ra3 c6 Rb3 Qd5 f2+ Kd1 Ra3 Nd2 Rah3 Bd3 f1N Nc4 R3h6 Ne2 Rh5 Nc1 Nh6 g8R Na6 b8R Rg5 b7 Nf5 Rb1 a1B Rb2 Rg1 Rd2 Rg4 Qa5 Nc5 Qa6 Rf4 Rg7 Rd4 Rh7 Rf4 g7 Kf7 e8B+ Kg8 e6 Rg4 e7 Nd4 Bh5 Nce6 e8B Nd8 Nd6 Ng3 Beg6 Nb5 Bgf5 Be5 Rg1 h1N Rgg2 Bf4 Rg1 Rh4 Bhe2 Rg4 Rg2 Ne4 Rg1 Ng5 Rg2 Ngf7 Rg1 Rh4 Rg6 Rg4 Ra8 Na3 b8Q Ng3 Qbb5 Bb7 c8Q Ne5 c7 Bd5 Rb8 Bc4 Qbc6 Nb5 Rb6 Be7 Qb8 Bf8 c8Q Be7 Ne8 Bd6 Qbb7 Bb8 Nd6 Be6 Qbc7 Bc4 Rh2 Rh5 Rh1 Rhg5 Rhh6 Rh4 Rh7 Rgg4
1R2N2K/k2qp2b/1N2R1p1/nB2Bn1R/7Q/3P1qN1/N1q4B/qRq1Qr2 w - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 cxd5 b5 f4 b4 f5 b3 f6 Bd7 axb3 Bf5 b4 Bd7 b5 Bc8 h4 g6 h5 Bg7 h6 a5 hxg7 Ra6 Ke2 Re6 Kf2 Re5 Ke1 Rf5 gxf5 Be6 Nh3 Bd7 Ng1 Bc8 Ke2 Kd7 Ke3 h5 Kf4 c5 Kg5 Kc7 b4 Kb7 b6 c4 f7 c3 f8Q h4 d6 e3 b5 c2 d7 a4 f6 h3 f7 a3 Bb2 c1Q Nc3 a2 Nge2 h2 Rb1 a1Q Qe1 Qa5 Ng3 e2 Na2 Qa7 Be5 Nf6 g8N Qb2 Qh6 Ng4 f8N Qc7 d8R Qa5 Nf6 Rg8 Ne8 Qd4 Nd7 Rf8 Qh4 Ne3 Kh6 Nc6 Kg7 Nf5+ Kh7 Ka8 b7+ Ka7 Nb6 Be6 b8R Bg8+ Kh8 Qdd7 Rdc8 Qa4 Rd8 Na5 Rdc8 Qcd6 Rc6 Q6c7 Re6 Qe4 d3 Qec4 Bg2 Qc2 Bc6 Rf6 Nc4 Bh7 b6+ Ka6 b7 Ka7 Nb6 Qc1 Qd2 e1Q Bb5 Q7c2 Qe3 Qec3 Qe1 Qa1 Rd8 Rf7 b8B+ Kb7 Bc7 Ka7 Rb8 Rf6 Rf1 h1Q Rf4 Nh6 Rf5 Qf3 Rh5 Rf7 Bd4 Rf5 Bce5 Rf4 Bg1 Nf5 Bh2 Qa8 Qe3 Rf1 Qe1 Qf3
6k1/1K1N4/1n2RBNQ/2pPbpq1/1B2Qb2/1R1bQ1qR/2R1b3/qQ3B1r w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 Nd7 g5 Ra6 Bg2 Rg6 Bf1 exf4 h4 Ndf6 gxf6 Rg5 Na3 g6 Nb1 Rh5 Rh2 g5 Rh3 g4 Rh1 Rg5 hxg5 Bc5 Qb3 Bb4 Qd1 Bf8 Kf2 Kf7 b4 h5 e4 h4 d4 a4 b6 h3 b7 f3 Ke3 f2 b8Q h2 g6+ Ke8 e5 a3 f7+ Ke7 g7 c6 b5 a2 e6 g3 b6 g2 d6+ Kf6 e7 Qe8 d7 Rh6 d8B Ke6 b7 Rf6 d5+ Kd7 Kd4 Rg6 Kc5 Nf6 Kb6 c5 g8R Bg7 f8Q Rg5 Nc3 Ne4 Ba3 Qf7 Qd4 Nd6 Rc1 a1B Nge2 g1Q Rc2 Qf6 Ne4 Rh5 Bb4 Qfg5 Qe3 Q1g3 Nf4 Bae5 Ng6 Bf4 e8R Bc3 Bf6 Bce5 Qh6 Nc4+ Ka6 Rh4 Re6 Nb6 Qa8 Rh3 Ka7 Rh4 b8Q Ba6 Rge8 Bc4 Kb7 Be2 Qa2 Rh5 Qb1 Rh3 Rh8 Rh4 Rg1 h1Q Qa8 Rh2 Qa6 Rh5 Qc4 Rh4 Rg2 Qg1 Rb8 Rh1 Rh2 Bd3 Rh3 Be2 Bg2 f1B Qcd4 Bd3 Qc4 Bfe2 Bf1 Q3h2 Nc3 Qhf2 Na4 Q1g3 Qce4 Qe1 Qa2 Qa1 Qb1 Nc8 Rb6 Ke8 Re6+ Kf7 Nb6 Kg8 Nd7 Qa2 Ra8 Qa1 Ra3 Nb6 Rac3 Qf2 Rb3 Qfg3
3N4/qRN1Q1BR/2B1bnpK/B4R2/PQ2p2r/6qn/1R3qk1/N1n1q2N w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 Nd7 g4 Nb8 b4 axb4 f6 Kd7 f7 Ra5 Ba3 Ra6 Bc1 Ra8 f4 b5 h4 g6 h5 Nf6 h6 Nc6 f5 Bg7 hxg7 Ng8 g5 Ra6 Qb3 Nb8 Qd1 Rf6 gxf6 Qf8 Kf2 Qe8 Ke1 Qd8 Ke2 Kd6 Kf3 Ke5 Kg4 Ke4 Kg5 c5 f8R e5 d4 h5 a4 c4 d6 b3 d7 b4 d5 b2 d6 b3 Ra2 h4 Qe1+ Kd4 Bg2 c3 Nh3 c2 Na3 b1Q Rb2 Ba6 Nf2 h3 Bd2 c1N Ba5 h2 Bc6 e4 Qb4+ Ke3 Nc2+ Kf3 Na1 Ne7 g8R Bc4 f7 Qb6 d8Q Qd3 d7 Nd5 f6 Kg2 Rg7 Nf4 Qde7 Qa7 d8N Nd7 Rh7 Qd2 Kh6 Be6 Re1 Qde3 Nh1+ Qf2 Rf1 Nh3 Rg8 Bf5 f8N Be6 f7 Nf6 Rg7 Ne2 Rd2 b2 Rc2 b1Q Rb2 Qg3 Rf3 Qbg1 Rf5 Bd5 Nfe6 Q1f2 f8B Nc1 Nc7 Be6 Rf7 Qd6 Ng3 h1Q Bg7 Qe1 Nh1 Qg3 Rb5 Nh5 Rff5 Nf6 Nf7 Rd8 Rb7 Rd3 Nd8 Rf3 Qed6 Rf4 Qe7 Rh4+
b3qr2/N2B3R/1B2NBr1/p2r4/Pp1RrN2/2r1Q1Q1/2b3BN/k1K2q1R w - - 0 1 legal: proof: e4 d5 f4 e5 b4 c5 bxc5 Bd6 Ne2 dxe4 Ng1 e3 Nh3 e4 Ng1 Be5 fxe5 Qb6 Ke2 Qf6 Ke1 Qd8 g4 g5 Bc4 f5 Bd3 f4 Bf1 Nh6 h3 Nf5 gxf5 Nd7 h4 g4 Bd3 Nf8 Bc4 Ne6 Bf1 Ng5 hxg5 Kf8 Nf3 Kf7 Ng1 Ke8 d4 Kd7 a4 Kc6 c4 h5 f6 a5 g6 b5 f7 h4 f8N f3 e6 g3 e7 h3 e8R h2 d5+ Kc7 c6 Kd6 c7 Kc5 d6 Kb4 d7 g2 g7 e2 Kd2 e1R g8Q f2 c5 Rh5 c6 Ba6 c8B Rb8 c7 Rh7 Nc3 Rh6 Bb2 e3+ Kc1 e2 Nf3 g1R Qg3 Rg6 Re7 Qe8 Bg2 f1Q d8B Bb7 Rd7 Be4 Ne6 Bc2 Rd4+ Kb3 Bd7 b4 c8N Rb5 Rb1 Rd5 Na7 Rg8 Bb6 Rf8 Ne4 Ka2 N4c5 Qa8 Bc3 Qe8 Rb2+ Ka1 Nd3 Qf2 Ndf4 Ref1 Nd8 e1R Nde6 Re4 Qe1 Qe2 Rd1 Rf2 Bf6 Qf1 Rd4 Rd2 Rb3 Rd3 Rc3 Rde3 Rc7 Rd3 Bb5 Rc3 Rh7 Rh8 Bd7 Rf8 Qf2 Ree5 Qe3 Re4 Bh3 Rg6 Bg2 Qd3 Qg3 Qb5 Rf1 h1B Nh2 Qd3 Rd1 Qf1 Nc5 Qb5 Bc8 Re7 Bf3 Rh5 Bd7 Bg2 Rh1 Qf1+ Bd1 Ree5 Nce6 Bf3 Qgg1 Ba8 Qgg3 Qg2 Be2 Re4 Bf1 Qf2 Bh3 Rd5 Bg2 Qf1+
1N1Q2B1/B2r1r2/qBQNR1pk/1rR1K2N/n1PB1r2/6Q1/4q2p/2n1n1N1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Kf7 f6 Ke6 g4 Kd5 f7 Kd6 h4 g6 f4 Qe8 h5 Na6 h6 Kc7 f5 Bg7 hxg7 Nb8 Ra2 Kd6 Ra1 Bb7 f6 Qd8 Bh6 Be4 Bc1 Bf5 gxf5 Kc5 Qd2 Kd5 Qd1 Kd6 Kd2 Ke5 Kd3 d5 f8B a5 b4 h5 c4 a4 f7 Kf6 b6 e5 b7 h4 b5 h3 b6 h2 Na3 e4+ Ke2 d3+ Ke3 Kg5 Kd4+ d2 f6 e3 Bg2 e2 Nb5 e1N Bb2 a3 Bc5 a2 f8Q Na6 b8Q Kh6 b7 Qa5 f7 Rh7 Nd6 Nb4 Qfd8 Ne7 f8B Nc8 Ba7 Qa6 Ke5 d4 Bd5 d3 Bbd4 Nb6 Bg8 Na4 Qf3 d1R Qc6 d2 Qbc7 Rb1 b8N d1Q Be7 Qc2 Bf6 Rb3 Bdb6 Rb2 Rd1 a1R Rd5 Rd1 Rc5 Rd3 Qcc8 Qd2 Qg4 Na2 Qg3 Rbb3 Be6 Rb5 g8N+ Kh5 Bh8 Rf7 Nf6+ Kh6 Nh5 Nc1 Bd5 Rf4 Bg8 Qb2+ Ke6 Rf7 Bd4 Rdf3 Ke5 R3f4 Nh3 Qg2 Rf1 Qd2 Ng1 Rd7 Rf3 Qe2+ Re3 Rdf7 Nd7 Rc8 Nb8 Rcc7 Kd5 Qf1 Re6 Rcd7 Ke5 Qe2+
1r4B1/1Q1B3p/4nkrQ/1R5B/2Nb1NR1/1pq1bNQp/1B2nP2/b2K1N2 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 a4 b5 e4 d5 c4 f5 exf5 b4 cxd5 Bb7 Qc2 Ba6 Qd1 Bb5 axb5 Bh6 Ra3 Bg7 Ra1 Bf8 d4 Kf7 g4 e5 a6 c5 g5 h3 a7 b3 f6 c4 g6+ Ke8 d6 c3 g7 Kf7 d5 c2 b6 e4 d7 e3 b7 e2 d6 Kg6 f7 Ne7 g8B Nc8 Nf3 Bg7 f8Q Qa5+ Nbd2 Qa6 d8N Bc3 d7 Qc4 Rg1+ Qg4 Bb2 c1B Qh6+ Kf5 Ne6 Na6 d8N Qf4 b8Q Qe5 Nf7 Nc7 Qb7 Bd4 Ra5 Nd6 Nf4 Qc5 N7e5 Ndb5 Nec4 Rb8 a8B Ne6 Rg4 Nc3 Rb5 Qe5 Bg2 Qc5 Nf1 Bce3 Qd2 Qe5 Qh4 Qc5 Qg3 Kf6 Ng1 Qb4 Bc6 Qa5 Bd7 Qb4 Bf7 Rhg8 Nf3 Rg6 Qc1 Na2+ Qd2 Nc1 Bg8 Qc5 Ba3 Ba1 Bb2+ Bd4 Qe3 Qc8 Kd2 e1B+ Kd1 Ne2 Qc1 Bec3 Qd2 Be3 Qd6 Qe8 Qf8+ Qf7 Qh6 Qg7 Ng5 Re8 Qc8 Ng1 Bf3 Ke7 Qb7 Rb8 Rh4 Ne2 Bh5 Qe5 Nf3 Kf6 Rg4 Qc7 Nd6 Qa5 Nc4 Bcd4 Qg2 Qb4 Qg3 Qc3
Rb2q1B1/1nBN1R2/b3rP2/2p2R2/1Q2RK2/NnQ4p/p3N2k/2qQN1b1 w - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 f6 Kd7 Ke2 Kd6 Kf3 Ke5 d4+ Kf5 Ra4 h5 b4 c5 d6 e5 d5 h4 g7 h3 g6 Qb6 d7 Qd8 d6 Na6 b6 Nc7 b7 Rh5 b8Q Rh4 b5 Ne8 b6 Rh6 b7 Rh4 Bc4 Ne7 g8Q Nc6 g7 Rh5 Rb4 a4 Qf7 a3 g8R a2 Rg7 Rh8 Na3 Na5 Qe7 Rh5 Bg8 Nb3 Rf7 Kg5 Rh2 Kh4 Rf2 Rg5 Ke4 Kg3 Nf3 Rg4 Kf5 e4 Qe5 e3 Qc3 e2 Rc4 Qe7 Ne1+ Qe3 Rf3+ Kh2 Ra4 Rh4 Kg5 Qe4 d8N Qc6 d7 Bd6 Ne6 Bc7 d8R Nd6 Qdc2 Qe8 Qd1 Rh5+ Kg4 Re5 Rb4 Re3 Kg5 Re4 Nd4 Re6 Rc4 Bd7 Ra4 Bb5 Ra8 Bd3 Re3 Ba6 Re4 Nb5 Rd5 Nd6 Nec2 e1B Ne2 Bg3 Rf5 Bf2 Ne1 Bg1 Be3 Nc4 Bd4 Nca5 Be5 Bd6 Qdd4 Bc7 Qbd8 Bd6 b8N Nb7 Qdb4 Bc7 Qd5 Bd6 Nd7 Bb8 Ng3 f3 Bc7 Be2 Kf4 Ba6 Ne2 f2 Nf3+ Kg2 Qd6 f1Q Qdd3 Qa1 Ne1+ Kh2 Qd1 Qc1+
6b1/r1B1R1N1/r2pRNR1/3K1P1R/bq3Bq1/kp3Qp1/b1B1N3/N3nQ2 w - - 0 1 legal: proof: g4 c5 e4 f5 exf5 a5 b4 axb4 d4 g5 dxc5 Ra5 f4 Nc6 f6 Nd4 h3 Nf5 gxf5 g4 h4 Ra8 Bh3 Bh6 Bf1 Bg5 hxg5 Ra4 Rh3 Ra6 Rh1 Ra8 Kd2 h5 Kd3 e5 Kc4 b5+ Kd5 h4 a4 b3 c4 h3 a5 b2 a6 h2 f7+ Ke7 f8N g3 f6+ Kf7 c6 e4 c7 b4 c5 e3 g6+ Ke8 c6 b3 f7+ Ke7 g7 e2 a7 e1Q f5 Ba6 c8R Bb7 Bf4 Nh6 Bd3 Ng8 Rc7 Qb8 Bc2 Qb4 Na3 b1B Qf1 Nh6 Ne6 Ba2 Re1 Rh7 Ne2 Ng4 g8R Nf2 Rg6 Ba6 Ng7 Qg8 Rb7 Rh6 c7 Bb5 c8Q Ba4 Qc3 Rh7 Qf3 Nd3 Rbb6 Rh6 Bc7 Rh7 Rbf6 d6 Re6+ Kd7 f8B Qb5+ Ke4 Kc6 Be7 Kc5 Bg5 Kb4 Bf4 Qb6 Kd5 Qbb8 Rg1 h1B Rg2 Qbd8 Rh2 Qh4 Rh3 Qg4 Rhh6 Qd8 Rh5 Qdh4 Re7 Rb8 a8N Rb6 Ree6 Ra6 Nb6 Bg2 Nd7 Bh1 Rd1 Ne1 Nf6 Bg2 Nb5 Bh1 Nbd4 Ka3 Rb1 Rh8 Rd1 Rha8 Rd3 R8a7 Rde3 Qhg5 R3e5 Qh6 Re4 Qh8 Re7 Qb8 R4e6 Bg2 Bd3 Qb4 Nc2+ Kb2 Na1 Ka3 Bc2 Bh1 Qe4 Bf3 Nc1 Be2 Qef3 Beb5 Ne2 Be8 Rh3 Bf7 Rh5 Bg8
4q1RQ/2N1p2p/1RB1R2r/BN1B2Q1/Kr6/n3Rq2/2k1Pp2/b2b1rQQ w - - 0 1 legal: proof: c4 a5 b4 g5 a4 b5 axb5 d5 cxd5 Nh6 f4 Ng8 fxg5 Qd7 Ra3 Qd6 Ra1 Qd8 h4 axb4 g4 Qd7 g6 Ra6 h5 Ra8 g5 Nc6 g7 Ne5 Rh3 Ng6 hxg6 Qd6 Rh1 Qd8 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 f5 b6 f4 b7 f3 b8R f2 Nh3 Qa5 Ra3 Qa6 Nc3 Be6 Bd2 Qb5 Rb6+ Qc6 Bg2 Rd8 Nf4 Bf7 Qg1 Nf6 g8B Ne8 g7 Nc7 g6 Nb5 Ne6 c4+ Ka4 b3 Nc7 b2 Rh6 b1Q Rb3 Na3+ N3b5+ Kd7 d6 c3 d5 c2 Be4 c1R Ba5 Rf1 Re3 Qd3 Bg2 Be6 Bf7 Qdc3 g8R Bg7 Bh1 Bd4 g7 Ra8 Be4 Ra6 Qh1 Bf5 Re6 Qa8 Qg1 Qe8 Bf3 Qc6 Qg5 Qb7 Bh1 Ba1 Be4 Kc8 d7+ Kb8 d6 Bg6 Nc3 Ka7 Bc6 Bb1 d8Q Bc2+ Kb4 Bd1 d7 Qa8 Qc8 Qb7 d8Q Qa8 Qdd5 Qb7 Qh1 Qa8 Bb5 Qf3 Rb8 Rc6 Rb6 Rd6 R6e5 Rh6 Bc6 Rh2 Bfd5 Rh6 Rf8 Rg8 Qcg4 Rh8 Re6 Rg8 Qgg1 Rh8 Rff6 Rf8 Rg6 Rf4+ Kc5 Rb4 g8Q Qc8 Qh8 Qe8 Rb5 Qg4 Rg8 Qf3 Na8 Ka6 Rb8 Qff7 Nb5 Qf3 Nd6 Rb2 Rbb3 Rb1 Kb4 Rb2 Ka4 Rb1 Bb4 Rb2 Nc7+ Kb6 Be1+ Kc5 R3e5 Kd4 Ba5 Nc2 Rb4+ Kc3 Re3+ Kd2 Rb7+ Kc1 Rb6 Na3+ Reb3+ Kb1 Ndb5 Kc2 Rbe3 Rb4+
1NqQQ2r/1NBpB3/4pb2/1k5p/1b2BR1q/K2rqN2/nP3QN1/Q4R2 w - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f7 Kd6 h4 Qe8 f5 Bb7 f6 Be4 Rh3 Qc8 Rh1 Bf5 gxf5 Qd8 Be3 g5 Ra6+ Nc6 Bc1 g4 Ra3 Ne5 Ra1 Nf3+ Ke2 Ng5 hxg5 Qb6 Ke1 Qd8 Kd2 Kc5 c4 a5 Kc2 h5 Kb3 d3 g6 g3 b6 d2 b7 g2 b8N e6 g7 Bd6 f8B Kb6 c5+ Kc7 c6 Kb6 c7 Bg3 c8N+ Kc7 f7 Qe8 f6 Bd6 Na3 Bb4 Nc4 Ne7 g8Q Nc6 N8d6 Qc8 Ne3 Kb6 Rh4 a4+ Ka2 a3 Be7 Ra6 Qd8+ Kc5 Kb3 a2 f8Q Ra4 Rb1 a1Q f7 Ba5 Qe1 Rd4 Bd3 Nb4 Be4 Na2 Ka3 d1Q Nb7+ Kb5 Qfe8 Qe2 f8Q Bc3 Qf4 Qg4 Qff2 Rd3 Nf3 Qh3 Rg4 Qh1 Bd2 Qh4 Rd1 Bf6+ Bc3 Qc1 Rf4 Rd6 Ba5 Rd3+ Qc3 Qd2 Rf1 Qc1 Bc7 g1B Qg3 Qd2 Ng2 Bgd4 Qf2 Qe3 Qb3+ Nb4 Qc3 Bde5 Qb3 Bc3 Qd1 Na2 Qa1 Bb4+
3Q4/4B1N1/1br3R1/PkBb2Nb/Rb1pN2n/2Bpp3/2q1B1Qr/NK3Q2 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 e4 b4 exf5 Na6 d3 Nc7 d4 Nb5 axb5 cxd4 Kd2 g5 f4 d5 h4 Kd7 c4 e5 Kc2 e4 b6 Kc6 f6 e3 f7 g4 b7 g3 b8Q g2 f5 Kc5 f6 Nh6 Nd2 b3+ Kb1 b2 Nh3 g1B Qh2 d3 Ra4 Qd6 Nb3+ Kc6 c5 Qe5 Ng5 Ra7 Qg2 Qd4 Be2 Rd7 Qdf1 Rd8 Na1 Nf5 h6 Qe4 h7 Ba6 h5 Bc8 h6 Bg7 f8B Qb4 f7 Bc3 Be7 Rd6 f8N Bd2 Nfe6 Kb5 c6 Nh4 c7 Bh2 Rg1 Rc6 Ng7 Bg4 c8N Bh5 Bc5 Bc7 Nd6+ Ka6 Nde4 Bb6 Be7 Kb5 Bc5 Be1 Bd2 d4 Bc3 Rf8 h8Q Rf2 h7 Bd2 Qf3 Rh2 Qd8 Be1 h8B Bd2 Ka2 Be1 Q3g2 Bd2 Nb3 b1B+ Kb2 Be1 Kc1 Bc2 Na1 Bb3 Kb1 Bd2 Nf5 Be1 Bf6 Bd2 Bfe7 Bd5+ Bb2 Be1 Ng7 Qd2 Bc3 Bg3 Qh3 Bgc7 Rg4 Bd6 Qhg2 Bbc7 Ba7 Bb4 Bac5 Bb6 Nh3 Bg8 Rg6 Bd5 Nhg5 Qc2+
1NQ1r3/3pQn2/BqR2RbP/3RK1n1/6Bk/Rb1p1p2/2QQnN2/4n1B1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 c5 axb5 h5 g4 a6 d3 h4 d4 cxd4 Kf2 g5 Qe1 a5 Ra3 Rh5 gxh5 g4 Rh3 Bh6 Ra3 Bf4 Qd1 g3+ Ke1 g2 Ra1 Bg3+ hxg3 Ra6 Qd3 Rh6 Qd1 Rh8 Kd2 Ke7 Kd3 f5 e4 f4 c4 h3 b4 a4 c5 a3 e6 Kf6 g4 Kg5 e5 a2 Ke4 h2 h6 Qf6 c6 Qg7 c7 Kh4 e7 f3 e8Q Qh7+ Qg6 Qf7 e6 Qf8 b6 Qd6 b5 Qa3 e7 Bb7+ Ke5 Qb2 c8Q Qd2 e8Q Qc2 g5 Kg3 Qe7 Ba8 b7 Qe2+ Be3 Kg4 b6 Qd2 Nh3 g1N Qgc2 Kh4 g6+ Kg3 g7 Qe2 Nf2 Qa6 Na3 Nf6 g8B Ne2 Nc4 Ne4 Be6 Re8 Qdd2 Ng5 Bg4 Kh4 Na5 Qa7 Rc1 a1N Nc6 Qa6 Rg1 h1B Rd1 Bg2 Rc1 Ng3 Be2 Qa7 Ba6 Ne2 Rgf1 Bh3 Rfd1 Nb3 Ra1 Nbc1 Ra3 Bf1 Bf4 Bh3 Bh2 Bf1 Bg1 Nd3+ Kf6 Ne1 Ke5 d3 Rb1 Bg2 Rb5 Bf1 Rd5 Bh3 Bc4 Na6 b8R Nc7 Ba6 Nb5 Rb7 Nd6 Rc7 Qb8 b7 Qa7 b8R Qb6 Bh5 Bf5 Bg4 Be6 Rbb7 Bf5 Nb8 Bg6 Ra7 Bc6 Ra8 Bb5 Rc6 Bc4 Ra7 Bb3 Rac7 Nf5 Rf6 Nd6 Rc6 Ndf7+
4q1RN/B1rQb2N/k3N2Q/3r2q1/BpP2pnp/rRq2B1R/2K1B3/2N5 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 dxc5 e5 fxe5 f4 h4 b6 Qd3 Ba6 Qd2 Bd3 Qd1 Bf5 gxf5 Qg5 Nc3 Qf6 Nb1 Qd8 Kf2 g5 Qd2 g4 Qd3 Na6 Ke1 Nc7 Qd5 Ne6 Qd1 Ng5 hxg5 Bd6 Qd3 Be7 Qd1 Bf8 Kd2 h5 a4 d5 e4 Kd7 c4 Kc8 e6 Kb7 c6+ Ka6 a5 b3 c7 d4 c8N d3 g6 g3 e7 h4 e8B b2 e5 b5 g7 g2 e6 b4 e7 Qc7 f6 Ra7 f7 Qc6 Na3 b1Q Nb5 Rh7 Rh3 Qf3 Nc7+ Kb7 a6+ Kb8 Ne6 Rh8 Ne2 g1Q Nd6 Rh6 Ra3 Rh7 Rb3 Rh6 Ba4 Qh2 e8N Qhg2 Nf6 Rh8 Nh7 Nf6 g8R Rc7 a7+ Ka8 Bb2 Qg5 Bd4 Ng4 Nc1 Qe4 Bf2 Qa1 Be2 Qc6 Bb6 Qe8 Bf2 Be7 f8Q Qa3 Nf7 Kb7 a8B+ Ka6 Baf3 Qa1 Qh6 Qae5 Qg1 Qc3+ Kd1 d2 Ba7 Qgf6 Qd4 Qg5 Rg6 Rf8 Nh8 Rf5 Qd7 Rd5 Rg8 Ra5 Bac6 Ra3 Ba4 Qd4 Kc2 d1R Bb6 Qe3 Bc5 Rd5 Ba7 Qc3+
NR6/bNpQ1pbQ/k1N2Bbq/r1PK3r/1R2p3/1BR1B1Br/1R3q2/8 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e6 e4 e5 fxe5 dxe4 Ra4 g5 Ra2 Nd7 Ra1 Ndf6 Ra3 Nh6 Ra1 h4 h3 Nh5 gxh5 g4 Rh2 g3 Rh1 Ng4 hxg4 Kd7 Rh2 Ke7 Rh1 Ke8 Ke2 Kd7 Ke3 a5 Kd4 h3 b4 g2 c4 a4 g5 h2 c5 a3 b6 a2 b5 Bb7 g6 Qg5 g7 Kc8 g8Q Qf4 h6 Ba6 b7+ Kb8 h7 Ka7 b8R Qh4 e6 Qh5 e7 Qf3 e8N Qg4 Nf3 g1R Kd5 Qg7 d4 Rg2 Nd6 Rd2 Na3 Rc2 Nb7 Rd2 Ne5 Rc2 Nac4 Qg3 Be3 Qg6 Nb6 Rc3 Rc1 a1B Bc4 Qf6 Bb3 Rd3 Rc3 Bh6 Qdg4 Bg7 Qd7 Qf3 Rb1 h1Q Rb2 Bh6 Qg7 Rf8 h8B Qf2 Qh7 Rd8 Bf6 Bg7 Bh4 Rh8 Bg3 Qh6 Rg8 Re8 Na8 Re6 Rb8 Rc6 Na5 Bc8 b6+ Ka6 b7 Rb6 Nec6 Rb5 Qd8 Bf5 Qd7 Bg4 Rf8 Bd1 b8R Bh5 Rb7 Bg6 Rfb8 Rb4 Rb5 Ra4 Nb7 Ra2 Rb4 Ra5 Bef4 Rf3 Be3 Rf5+ Kc4 Re5 d5 Rh5 d6 Rh3 Rd2 Bb2 Kd5 Bc1 Rdc2 Bd2 Rb2 Re8 Rd4 Bf6 Rcd3 Ra1 Qe6 Ba5 d7 Bg7 d8B Bb6 Rb4 Ra5 Qd7 Ba7 Rc3 Re6 Bf6 Re5+ Kd4 Reh5 Kc4 Bf5 Kd5 Bg6+
1R2R2B/kN3p2/n1p5/1Q1bQr2/q2qP3/2Q1pBBn/1RQ2N1q/3q1KB1 w - - 0 1 legal: proof: c4 b5 h4 g5 a4 gxh4 axb5 d5 cxd5 Nc6 d4 Qd6 e3 Qd8 d6 Nb8 d5 Bg7 Ra6 e5 d7+ Ke7 Ra5 e4 Ra1 Bd4 exd4 a5 f3 e3 Qb3 Ra6 Qa4 Re6 Qd1 Re4 fxe4 Ba6 Ra2 Bb7 Ra1 Bc8 b4 Kd6 g4 h5 g5 h3 b6 c6 b5 h4 b7 Kc7 g6 Kb6 d6 h2 g7 a4 d5 h3 Ra2 a3 Qc2 Qe8 d8R Ne7 g8Q Ka7 d7 Rh7 d6 Rh5 Qg3 Kb6 Nd2 Rh6 Bb2 Na6 b8B Nc5 Nc4+ Kb7 b6 Ne6 Bh8 Qf8 Na5+ Ka8 Be2 Qg7 Kf1 Rh4 Re8 Rf4+ Bf3 Nc7 d8B Be6 d7 Ng6 Rb2 a2 Nb7 Bd5 Bh4 Qd4 d8Q Na6 Qf6 Rf5 Qge5 Nf4 Bf2 Qd2 Qec3 Qd4 Qe5 a1Q+ Bd1 Qaa4 Bf3 Qa5 Ne2 Qa3 Bg1 Qaa4 Nc1 Qd2 Nd3 Qd4 Bf2 Qa4 Rg1 h1Q Bg3 Qd4 Bf2 Qh2 Rgg8 Qa4 Bg1 Qd4 Rgf8 Qa4 Nf2 Qdd4 Ng4 Qhd2 Nf2 h2 Rg8 h1Q Rgf8 Be6 Qb5 Nh3 Bg3+ Bc8 Nd6 Qh2 b7+ Ka7 Qe5 Nc5 Rg8 Be6 b8Q+ Ka6 Rgf8 Bd5 Qb5+ Ka7 Nb7 Na6 Rb8 Qc5 Rg8 Qcd4 Rge8 Qd1+
1k5N/R3bb1p/2p1pRNQ/K1Q2n2/n2N2n1/1BBR4/bR2P1n1/1B1B3q w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 f5 h4 d5 c4 g6 cxd5 a4 b4 Ra5 bxa5 Nh6 h5 g5 f4 gxf4 g5 Rg8 Qb3 Nf7 Qd1 Rg6 hxg6 Nh6 d4 Kd7 Kd2 f3 Kc3 f2 Kb4 f4 g7 f3 g8B c6 b6 a3 a6 a2 d6 Ng4 g6 Bg7 d5 Bh8 a7 Be5 a8Q Bg7 b7 Bd4 g7 Qe8 Rh6 Na6+ Ka5 Bf6 b8R Bh4 Nc3 Bg3 Bb2 Qf7 Rf6 Ne5 Qc1 Nd3 Bg2 f1N Qh6 f2 Nh3 Qf8 Be4 Nf4 Bb1 Ne3 Nb5 f1B Nd4 Nc5 Bc3 Ng4 Rb2 Ng2 Nf4 Na4 Ng6 Bh4 Qa7+ Kd8 Qc5 Be6 d7 Kc7 d8R Bf7 Rd7+ Kc8 d6 Qd8+ Kb4 Kb8 Ra7 Qc7 d7 Qh2 d8N Qh1 Ka5+ Nb6 Rd2 Na4 Rd3 Bg5 Bc2 Bh4 Bd1 Bg5 Rc1 a1N Rc2 Ba2 Rcd2 Nc2 Nf7 Nce3 Nfh8 Nf5 Bgb3 Bh4 Bbc2 Bf7 g8B e6 Bb3 Nf4 Rb2 Bg2 Qg5 Bd5 Qh6 Be8 Bf7 Ng2 Nf4 Bc4 Bh5 Bf7 Nfg6 Nf2 Bf3 Ng4 Bd5 Bg5 Bbc2+ Bb3 Bb1 Bh4 Rc2 Ba2 Bb3 Bg3 Rcd2 Bd6 Rb2 Be7
k4Bn1/qq1p1B2/n2pB1R1/1R2RN1Q/5Pp1/2b2B2/3Np2K/QbQ2rR1 w - - 0 1 legal: proof: b4 b5 d4 a5 e4 h5 a4 f5 exf5 h4 axb5 a4 d5 h3 d6 Ra5 bxa5 cxd6 gxh3 Bb7 h4 Ba6 h5 Bc8 h4 e5 c4 g5 c5 g4 f6 a3 a6 a2 h6 e4 a7 e3 a8B Qa5+ Nd2 Kd8 h5 Kc7 b6+ Kd8 f7 Nc6 h7 Bb7 h6 Kc8 Ne2 Kb8 Rg1 Qa4 Ng3 Nd4 c6 Ne2 c7+ Kc8 Nf5 Nd4 Bc4 e2 Be6 Bf3 Bad5 Be7 f8R+ Bd8 Rf6 Bg2 Rg6 Qb3 f4 Qf3 Bb2 Bh1 Qc1 Nc6 Bg7 Kb7 c8B+ Kb8 b7 Qb3 Kf2 Nge7 Bf8 Qc2 Kg3 Nb4 Kh2 Qc7 Bf3 Ka7 b8R Ng8 Rb5 Na6 Bcb7 Bf6 Bbd5 Qb7 Bf7 Bc3 Bde6 Bg2 Rab1 a1Q Re5 Ka8 Rbb5 Nf6 Be7 Rb8 h8Q Ng8 h7 Rc8 Bf8 Qa3 Bfd5 Be4 Qg7 Bd3 h8Q Bb1 Bf3 Qc5 Qf6 Qa7 Qh5 Rc7 Qd8+ Rc8 Qa5 Rc4 Qa1 Rd4 Nf1 Rd1 Nd2 Rf1
2r4k/1n1BN2p/2NpNP2/B1RrpQ2/R3n1b1/2K4Q/2p3bR/R1b1N2B w - - 0 1 legal: proof: e4 a5 b4 b5 c4 c5 cxb5 g5 a4 f5 exf5 c4 h4 gxh4 d4 Ra6 b6 Ra8 b5 Qc7 b7 Qc5 dxc5 Ra6 Qd2 Rg6 Qd4 Rg3 Qd1 Rb3 b6 Rb5 axb5 a4 Bd2 a3 Bh6 Na6 Bc1 Nb8 Kd2 Kf7 f4 Kg7 g4 e5 f6+ Kh6 f7 Kg7 c6 a2 g5 h3 f5 d6 c7 h2 f6+ Kg6 Qf3 Be7 f8N+ Kf7 g6+ Ke8 g7 Kf7 Qf5 Be6 c8B Bd7 Bg2 Na6 b8Q Bc6 b7 Nc7 b6 Bd8 Ne6 Ba4 Nf3 Na6 Ne1 Bd7 Nc3 Ne7 g8R Nc6 Nd5 Nc5 Kc3 Na5 Bd2 Bc7 Ne7 Ne4+ Kb4 c3 Rg4 c2 Qa8 Ng5 b8R Ne4 b7 Bb6 Qa6 Bf2 Qd3 Be3 Ra8 Bh6 b8N Nb7 Ra4 Be3 Bc3 Bc1 Qh3 Rf8 Nbc6 Re8 Rf1 h1B Rf2 Rd8 Bf3 Bg2 Ra5 Rg8 Rc5 Re8 Kc4 Rh8 Ba5 Rg8 Rb1 a1R Kb4 Ra3 Ra1 Rd3 Re2 Rd5 Rd2 Bf1 Rh2 Rh8 Bh1 Bg2 Ng7 Be6 Bd7 Rc8 Kb3 Nc3 Rga4 Ne4 Qf1 Bg4 Qf5 Kf8 Ne6+ Kf7 Ng6 Kg8 Nge7+ Kh8 Kb4 Ng3 Kc3 Ne4+
bn1N2k1/2PBRpN1/p1R2QN1/4R3/2n3Np/1rb2pR1/QB2b3/2nB1K2 w - - 0 1 illegal: No possible last move, all moves rejected
1Q2b2q/4Rp1R/2QB1p1b/KN1pP2N/4n2p/R1R4b/1knQ3N/1B1Q2b1 w - - 0 1 legal: proof: f4 c5 b4 a5 bxa5 h5 d4 h4 dxc5 Ra6 g4 Ra7 f5 Ra8 f6 exf6 h3 g5 Bf4 b5 Bd2 Rh5 gxh5 g4 Bc1 g3 Kd2 Ra6 Ke1 Re6 Be3 Re4 Bc1 Rg4 hxg4 Qc7 Nd2 Qb6 Nb1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Ke5 e4 d5 a4 g2 c4 Nh6 a6 Bb7 g5 Qe8 a5 Qc8 g6 Qg4 a7 Qh3 a8Q Qg4 a6 Nf5 a7 Ne7 h6 Bg7 h7 Qe6 h8R Nd7 c6 Nf8 c5 Ng8 c7 Qc6 c8R Qb6 c6 Ne6 c7 Qe3 Nh3 g1B Nf4 Nh6 Ba3 Nf8 Nh5 Qb3+ Ka5 b4 Bd3 Kd4 Rh7 Ne6 Nc3 Qa2 Nb5+ Ke5 Qb8 b3 a8Q b2 Bb1 Bc6 Qaa7 Bd7 Qf2 Ng5 Qfd2 Ng4 Rh2 Be8 Re2 Bh6 g7 Ne3 g8N Qb3 Be7 Qc4 Ra3 Nc2 Bb4 Qc5 Re1 Qf8 Bd6+ Ke6 Re2 Qg7 Ree3 Qh8 e5 Kf5 Rec3 Ke4 Rd8 Bc6 c8Q Be8 Ba2 b1B Rd7 Ne1 Qc5 Bd3 Re7 Nc2 Bb1 Bf1 Qc6 Bh3 Na7 Bf8 Nh6 Bg7 Qf1 Bf8 Ng4 Bh6 Qdc1 Kd4 Nh2 Ne4 Qfd1+ Bd2 Qcb2 Nb4 Bd3 Bh6 Qbd2 Nc2 Rcb3 Nb4 Bb1+ Nd3 Qcb6+ Kc4 Nb5 Ne1 Rg3 Nc2 Ra1 Bhe3 Qc6+ Kb3 Ra3+ Kb2 Rf3 Bg5 Rfc3 Bh6
6NK/1NNpQb2/1r1B1Bbq/rQ3p2/3PR3/Q3ppB1/N4R2/b2k2bB w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 g6 axb5 g5 f4 gxf4 e5 Qa5 Ke2 Qb6 Ke1 Qd8 g4 Bg7 h4 Qb6 g5 Nf6 exf6 Bf8 h5 Qd8 Bd3 Nc6 Bc4 Ne5 Bf1 Ng6 hxg6 Bg7 Qh5 Bh6 Qd1 Bf8 Kf2 h5 Kf3 e5 c4 a5 d4 a4 f7+ Ke7 g7 Ke6 g8Q a3 g6 a2 g7 h4 b6 h3 c6 h2 c7 Ba6 c8N Ba3 f8B+ Kf6 b7 Kg5 b8B Qe8 c5 Rh6 c6 Qf7 c7 Bd3 Qe2 Qc4 Bd6 Qa6 Nh3+ Kh4 Qd8+ Rf6 g8N Qa7 Bg2 Qa6 Qe7 Bc5 Re1 h1B Nc3 Bb5 Ng5 Qa7 Ne6 Ba4 Qb5 Qa6 Re4 Bb3 Rb1 a1B Rb2 Qb6 Na2 Ra5 Rf2 Kh5 Nd8 Bc4 Na7 Bf7 c8Q Bg6 Qca6 Bb4 Bbc7 Bd2 Nb7 Be3 Bca3 Qc6 Bd8 Qc1 B6c7 Rb6 Bad6 Ra4 Qaa5 Qc6 Qc3 Ra5 Qa3 Qc1 Qg7 Qc6 Bf6 Qc1 Qe7 Qd2 Rf1 Bg1 Rf2 Qc1 Nc6 Qd2 Ncd8 Qc1 Ne6 Qc6 Ke2 Kg4 Kd2 Qc1+ Kd3 Qe3+ Kc4 Qh3 Kd5 Qh6 Bf3+ Kg3 Bb8 Bg2 Nc7 Bh1 Re3 e4 Ke5 Bg2 Re1 Bf1 Bh1+ f3 Bh8 Bc4 Kf6+ Qf4 Kg7 Bb3 Rc1 Bbf7 Rc5 e3 Re5 Bh5 Kh7 Qg5 Bf6 Bhg6+ Kh8 Qf4 Rb2 Qg5 Re4+ Qf4 Rb4 Kf2 Rb2+ Ke1 Rf2 Qg5 Bg3 Qf4 Nd5 Kd1 Bd6 Qg5 Nc7 Qh6+
qNQ2N1B/rR2p1Np/1N6/P1pQ3p/2b5/kpQ1Qn2/3KB1r1/1bR1B3 w - - 0 1 legal: proof: e4 a5 b4 d5 exd5 g6 bxa5 Nc6 h4 Nb4 c4 Na6 f4 Bd7 d4 Nc5 g4 Ne6 c5 Bh6 g5 Bc8 h5 gxh5 g6 Ng5 fxg5 Bg7 Bd3 Be5 Bf1 Bd6 cxd6 Bg4 Nf3 Bh3 Ng1 Bc8 a4 Kd7 a6 b5 g7 c5 g6 f5 a7 f4 Nf3 b4 Ne5+ Ke8 Qc2 b3 Bb2 f3 Nd7 f2+ Kd2 Rb8 a8Q Ba6 Na3 Rb7 Nc4 Rb8 Nf8 Rb6 Qc8 Rb8 Nb6 Nf6 g8Q Bc4 g7 Bd3 Be2 f1B Qge6 Rb7 g8Q Ba6 Qe3 Rc7 Qcc3 Bh3 Rhc1 Nd7 Qg2 Nf6 d7+ Kf7 d6 Bb5 d5 Qe8 d8B Bc4 d7 Ng8 d6 Ra7 Qd5+ Be6 Bc7 Nh6 a5 Rg8 Ra4 Bd3 Rb4 Rg2 Rb5 Ng4 d8N+ Kg8 d7 Bb1 Bb8 Ne5 Nc6 Kf7 d8N+ Kf6 Bc7 Bf7 Nde6 Bg8 Qb7 Qa8 Ng7 Be6 Nb8 Bg8 Qd8 Bc4 Qbc8 Kf7 Kd1 Nf3 Bg3 Nd4 Be1 Kf6 Qeh3 Ke5 Kd2 Ke4 N6d7 Kd5 Rb7 Ba6 Qce3 Bad3 Bc3 Kc4 Nb6+ Kb5 Bb2 Kb4 Qd5 Bc4 Qhf3 Nc6 Bf6 Nd4 Qc3+ Ka3 Qfe3 Rh2 Nf5 Rf2 Bh8 Rg2 Ng7 Nf3+
R2KRBr1/2r1n3/2N1rR2/2N2B2/1bQn1k2/rb6/N1QbQrP1/1n1Q2Rq w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 h5 b4 a5 d6 a4 b6 h3 d5 a3 d7 h4 b5 a2 d6 c4 b7 h2 b6 e6 Nh3 c3 Qc2 Ne7 Ba3 Rg8 Ng5 h3 Bd3 Ra5 Rg1 h1R Ne4+ Kg7 Kg5 e5 f4 h2 Nc5 Kh7+ Kf6 Qc7 d8N Kh6 d7 e4 Nc6 e3 d8Q e2 Qd4 e1R Qc4 Be6 Be4 Na6 b8Q Nb4 b7 Ra4 Q2e2 c2 Qc8 c1B b8Q Nc2 Qbb3 Bd2 Nc3 Nd4 Qbd1 Qb7 Qc7 Qb1 Bb4 Ra3 Bd3 Bc8 Kf7 Bd7 f6 Be6+ Ke8 Bd5 f5 Kg5 Qc8 Kf4 f7 Rf1 f6 Rf2 Bf5 Qc1 Q4a6 Bb3 Qac4 Qb1 Kd8 Qc1 Rb1 a1N Na2 Nc2 Re1 Rg1 Rf1 h1R Re1 Bg7+ f8R Rh6 f7 Re6 Re8 Bf8 Rf1 Rh1 Rg1 Rh7 Ra1 Ne3 Qcc2 N3d5 Qca6 Nc3 Qac4 Bh6 f8R Nb1 Rf6 Bf8 Qc2d3 Qc3 Q3c2 Qh3 Nc3 Qh1 Ra2 Ra7 Ra5 Rc7 Ra8 Rh3 Na2 Ba4 Rf1 Ra3 Rg1 Bb3 Nd7 Nd5 Q2c3 Bc5 Qcc2 Ba7 Be7 Bc5 Bf8 Bcb4 Nc5 Ne7
2n4r/1N1R4/1bQ4N/1bBB1rQ1/nNnKbR1r/1P2b2N/3b1R2/2kqR2B w - - 0 1 illegal: No possible last move
R7/n1RB1k1q/K3b2b/2BB1B1R/3Pr1Rb/r2rbbN1/1Q5n/QnN2Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 Ke2 c5 Kd3 a5 Kc4 h5 g4 a4 b4 a3 d4 a2 b6 h4 Kb5 f3 b7 c4 g6 f4 d6 c3 d7+ Ke7 g7 h3 g5 c2 g6 h2 e5 f2 e6 f3 Nd2 Nh6 g8R Nc6 b8Q Bb7 g7 Ra6 Ne2 Qc8 d8R Ra3 Bh3 f1N Ne4 f2 Qa7 Qc7 N4g3 Ng4 Rc8 Nd2 Qf1 Rh4 Qa8 Qd7 Rc7 Bc8 Kb6 Kf6 b5 Nb1 e7 Na7 e8B Qf5 Bb2 c1B Bd7 Be3 Nc1 Kf7 Bc3 Qh5 Bb4 Qh7 Bc5 Be7 Bf5 Be6 Kb7 Rd3 b6 Bh6 Ka6 Be3 Qe1 f1R b7 Rf3 b8Q Bh6 Qf1 Rfe3 Rg1 h1B Rh8 Bf3 Qb2 Nh2 Rg2 Rhe4 g8B+ Kg7 Bf7 Bh4 Bhg4 Bb3 Bd7 Be6 Bf5 Kf6 Qc6 Ra3+ Qa4 Red3 Bg8 Bb3 Bd5 Kg7 Ba8 Be6 Bd5 Kf7 Nh5 Ree3 Rg4 Re4 Ra8 Nd2 Rb1 a1B Ng3 Be3 Qb4 Bc3 Qb2 Bb4 Ra1 Nb1 Rh8 Qg6 Rh5 Bbd2 Ra2 Rac3 Qaa3 Qh7 Qa1 Bh6 Q3b2 Bde3 Kb7 Nb5 Ra8 Na7 Ka6 Ra3+
1r1N4/BQbQ1KNP/B1Bb1r2/2nn2NB/2n4k/3b4/1n5r/Qq1RnN1R w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 g5 b4 f5 e4 c6 h4 g3 h5 g2 h6 f4 d6+ Kf7 b6 Kg6 b7 c5+ Kd5 c4 d4 c3 b5 f3 e6 c2 e5 f2 d7 a4 b6 g4 e7 g3 Ke6 a3 d5 a2 d6 Nf6 Nd2 Kg5 e8B Nd5 Ba6 f1N Bh5 Nfe3 Nh3+ Kh4 Kf7 g1N e6 g2 e7 Nc4 e8B Nf3 Nf1 g1B Be3 c1N Ng5+ Bh2 h7 Nd3 Qa4 Nfe1 Rd1 a1R Qa3 Rb1 Qa1 Ndb2 Bg1 Qc7 Be3 Qc6 d8N Qb5 d7 Bd6 Nde6 Bc7 d8N Nd7 b8Q Nc5 Qa7 Rb8 Ng7 Bf5 b7 Bd3 Bc6 Qb3 Nh3 Bhd6 Bd4 Re8 Bg1 Re2 Ng5+ Rh2 Bd4 Ra8 b8Q Rc1 Qc8 Rb8 Qd7 Qa2 Qb6 Qb1 Qb7 Rc2 Bg1 Re2 Bd4 Re6 Be3 Nb3 Bb6 Nc5 Ba7 Rf6+
8/3nNnQ1/3b3r/2N4B/RBRn1krq/1nRQ1nr1/4qQKP/Q1Rb2B1 w - - 0 1 illegal: No possible last move, all moves rejected
r2nN2b/R2N3B/N7/QN2Kb1Q/4brR1/1kn1b3/2R1BqqP/B3Bbn1 w - - 0 1 illegal: No possible last move
Kb1bB2n/2q1Q3/4BR2/1qb2R1Q/6BB/QnN4b/NN3P1k/N2br1qr w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 b4 e3 b6 c6 b7 h4 g6 h3 g7 a4 b5 h2 b6 e2 g5 e1B g6 e6 Nh3 a3 Bb5 a2 Qh5 Rh7 Nf4 Na6 b8N Nb4 b7 Qa5 Na6 Ra7 b8Q+ Qc7 Qa8 Nd3 Nc5 Ne7 Nb3 Nc5 g8B e5+ Kc4 e4 d4 e3 g7 e2 Nd3 Bf5 Bg5 Ng6 Nb2 Bh3 Bh4 Nh8 Be6 Ba5 g8B e1Q Nc3 Qe5 Bg4 Rh6 Rhg1 h1B B8e6 Bf3 Rge1 Qf5 Re5 Bd1 Ba4 Qg5 Rf5 Bb6 Rc1 a1Q Bb5 Qb1 Na1 Nb3 Rf6 c5 Be8 Ra3 Kb5 c4 Qa4 Be7 Ka6 Bc5 Qa5 Ra2 Qa3 Bd8 Rc2 Qgc1 Re2 Qf5 Re5 Qd3 Ref5 Qg5 Nba4 Re2 Nb2 Re5 B8d7 Re1 Be8 Qa5+ Kb7 Qc7+ Ka8 Qg3 Rf8 Qg1 R5f6 Qgg7 Rf5 Qgd7 R8f6 Qb5 B8f7 Ke7 d6+ Kf8 d5 Kg7 d7 Rh7 Nca4 c3 d6 c2 Nc3 c1B Bg6 Bf4 Be8 Be7 d8N Bh2 Nc6 Bd8 d7 Bg3 Rf8 Be5 Qf7+ Kh6 Nb4 Bh2 Nba2 Bhd6 Be7 Bh2 Rf6+ Kg5 Qg6+ Kh4 Qf5 Qcb6 Qd5 Bb8 Qf3 Bdc7 d8Q Rh5 Qd6 Bd8 Qh1 Qc7 Rf5+ Rg5 R8f6 Rh5 Qhd5 Bf1 Qh1+ Qh2 Qd7 Rh6 Bd6 Rh5 Qe7 Rh7 Be2 Kh3 Bg3 Rh6 Qf3 Qg1 Qg4+ Kg2 Qh4 Rh7 Bg4 Rh5 Qg5 Rh1 Bh4 Kh2 Qh5 Bh3
Q2BB3/1r2q1Q1/1Q2Nn1b/bR1b1rB1/2NQ2r1/1B1Kr3/N1P4k/qr1R1n2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 f4 e5 g4 h5 b4 a5 f6 Ke6 b6 d5 b5 a4 b7 h4 b6 a3 g6 h3 f7 d3+ Ke3 d4+ Ke4 h2 g5 d2 g7 d3 g6 a2 Ba3 Qe7 Bc1 Rh5 Nf3 Nh6 g8Q Nd7 b8Q Ng4 b7 Ra3 g7 Rf5 Nc3 Ne3 Rb1 a1Q Na2 Kf6 Bh3 Nf1 Rb5 Ke6 Rg1 h1R Qa8 Rh2 b8B Rg2 Bc7 Rg4 Bd8 Ra7 Qh8 Rb7 g8B Bh6 f8N+ Kd6 Qe2 d1R Bb3 d2 Qf2 Nf6+ Kd3 Re1 Ne6 d1R+ Nd2 Bd7 Qg7 Bc6 Qd4+ Bd5 Bg2 Re2 Bf3 Rg6 Bh5 Rg4 Qa5 Re4 Be8 Re2 Qac3 Rde1 Qb2 e4+ Kc3 e3 Kd3 Rf2 Rh1 e2 Qb1 Re5 f5 Rd1 Rg1 e1B Qbb2 Ng8 f6 Rff5 f7 Nf6 f8Q Ree4 Nc3 Re2 Qb6+ Ke5 Qfh8 Ree4 Qa2 Re2 Qa8 Ree4 Na2 Re2 Nc7 Kf4 Rh1 Kg3 Ne6 Nd7 Qgd4 Nf6 Qg7 Ree5 Ba3 Rc1 Nc4 Rb1 Bc1 Ba5 Rg1+ Kh2 Bg5 Ng3 Re1 Nf1 Rd1 Re3+
r2R2nN/R7/1B1B1QK1/1QNQ1qRn/4b1R1/r1rq1P2/1br1B2B/k2n1r2 w - - 0 1 illegal: No possible last move, all moves rejected
K1n1qkN1/1Q4r1/Qb4RB/6b1/1R1N4/3BqP1Q/qq1R1n1R/N2brNq1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 h5 Kd3 c5 Ke4 a5 g4 e5 b4 h3 d4 c4 d6 h4 Kd5 e4 f3 c3 f6 h2 b6 e3 d7+ Kf7 b5 a4 b7 h3 b6 c2 g5 e2 Nd2 e1B Ne2 a3 Ng3 a2 Nb3 Qe7 d8Q Ra7 Qe2 Ra4 Qd7 Ba5 Qa6 Rh7 Bd3 Bd2 Nf1 Nc6 b8Q Ne5 b7 Ng4 Kc6 Rg7 d5 Nf2 d6 Re4 Qba7 Be3 b8R Bb6 Qa7b7 Re1 Qf5 Be6 d7 Qb4 d8R+ Be7 Rb1 Qd4 Na1 Qe3 Rb4 Bb3 Rg1 h1Q Qg4 h2 Qh3 Ng4 Rg3 Qhg1 g6+ Ke6 f7 h1Q Ra8 Bg5 f8N+ Kf6 Ra7 Nf2 Ne6 Qhg2 Nd4 Qe8+ Rd7 Q2h2 Rg2 Qhe5 Rh2 Qe3 Qb5 Ba4 Ra6 Bb3 Bd2 c1Q+ Qc4 Qb2 Qb5 Re7 g7 Kf7 Qa4 Bd1 Qa5 Nf6 g8N Kf8 Qb5 Rg7 Qa5 Bc5 Kc7 N6e4 Rg6 Ba7 Qaa6 Nd6 Bc1 Nc8 Bd2 Bb6+ Kb8 Q3e6 Ka8 Qe2 Bf4 Q2e3 Rdd6 Bgd8 Bh6 Bg5 Nac2 a1Q Rd7 Qa5 Na1 Qaa2 Re7 Qec1 Re2 Qf4 Rd2 Qfe3
b4kB1/R3nr2/QrQ2N2/B2P2R1/QNq2rqK/b1Bq1r2/3rQ3/1n4BN w - - 0 1 illegal: No possible last move, all moves rejected
1q1nRBN1/n3NBRr/1b1Q1B2/1P1Q1B2/4K1b1/1rqR2qR/Q1n5/1qq3k1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b6 Kf7 Ke2 Kf6 Kd3 Ke5 g4 Kf4 b4 a5 f6 c5 b7 e5 g5 h5 f7 h3 d6 h2 d7 h4 g6 a4 g7 h3 b5 a3 Qa4+ Kf5 f4 Kg4 f5+ Kg3 f6 Kf2 Ne2 a2 Ng3 Rh5 Bb2 Ra6 Nf5 Ne7 g8B Nec6 Nc3 Rh7 Nh6 Na7 Nd5 Nbc6 b8Q Qb6 Rd1 a1Q d8R Bg4 Qa2 Ra3+ Bc3 Bg7 f8R Rb3 f7 Qc7 Rd7 e4+ Kc2 e3 Kd3 e2 Re8 Be5 f8B Bd4 Rg7 Qd6 Qa8 Qb8 Ne7 Qb2 Bf7 e1N+ Ke4 c4 Nhg8 Bb6 d4 Qd2 d5 Qb2 Bf6 c3 d6 c2 d7 Qc3 Bd3 Kg2 Rf1 h1Q d8Q h2 Kd5 Qg1 Rf3 h1Q Qd6 Nd8 Bf5 Qhh2 Rh3 Qhg3 Rd4 Qf1 Qb7 Kg1 Qbc6 Qfd3 Qc4 Qd1 Rd3 Qb1 Ke4 c1Q Qcd5 Nc2
1kbbnR1B/1b3nB1/BQ3P2/rN3NKb/B2R3Q/2bQ1r1q/4qr2/2Q2R2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 a5 Kf4 h5 b4 c5 g4 Kc7 d4 a4 b6+ Kb7 b5 e6 d6 h3 d5 h4 f6 c4 f7 c3 g5 a3 g6 c2 g7 h2 d7 a2 d6 h3 Bb2 c1R Na3 Rc3 Nf3 Nh6 g8B Qe8 d8Q e5+ Kg5 e4 d7 e3 Nh4 e2 f4 e1B f5 Rc4 Qc1 Ra5 Bg7 Rf4 Bc4 Qe2 Rf1 Bfb4 f8R h1B Bb3 h2 Ba4 Bf3 Bc4 Ka8 b7+ Ka7 Rb1 Bbc3 Rb4 Na6 b8B+ Ka8 b6 h1B Bd3 a1Q Bbe5 Nc7 b7+ Kb8 Rd4 Bh5 Ba6 Rf3 Nb5 Qa3 Qf6 Rh7 d8Q Qb3 Bh8 Rf7 Qg6 Bg3 Beg7 Ne8 Qh7 Bc7 f6 Re7 Qd7 Bd8 Nf5 Rf2 Qd5 Re3 Qc4 Ref3 Qd3 Ng4 Qh6 Ne5 Qh7 Bg6 Qh2 Bh5 Qh4 Qe6 Ne3 Qh3 Nf5 Bg2 Qg4 Re3 Nbd6 Kc7 Qf4 Bc6 Qh4 Ref3 b8Q+ Kd7 Qbb5 Kc7 Qbb2 B6b7 Qb6+ Kb8 Nb5 Nf7+
B2Q4/4nn2/1bnPN3/2NrB1rr/Q1NQ1Qb1/R1K1Bnnq/q4R2/N3k3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 Kd2 a5 b6 c5 g5 e4 g6 h3 b5 a4 g7 h4 b7 c4 f6 a3 f5 e3+ Kc3 h2 f7 a2 f6 e2 b6 e1N Qa4 h3 Bg2 Rh7 Be3 Nf3 Nd2 Bg4 Nb3 Ne7 g8Q Rh5 Qh8 Nbc6 b8N Qc8 b7 Rg5 Nd7 Ra5 Ndc5 Bh6 f8Q Bg7 Rb1 a1Q+ Rb2 Qa2 f7 Be5 Rd2 Bg3 Na1 Bf2 Qfh6+ Qe6 f8N Rb5 Ne2 Ra5 Rb1 h1N Ng1 h2 Rb3 Ng3 Ra3 h1R Q6f6 Rhh5 Qf4+ Nfe5 Nf3 Qf5 Qe4 Nf7 Ne5 Bg1 Bh1 Qf1 Rc2 Qh3 Nfe6 Bf2 Qf4 Bg1 Kd2 c3+ Kd3 Rb5 Rf2 c2 Kc3 c1N Bg2 Nb3 Qhf6 Nef5 Qg7 Nd2 b8B+ Ke7 Qh8 Nf3 Nc4 Ra5 Qhe5 Rb5 Qee4 Kf6 d6 Kg6 Qd5 Nfe7 d7 Kh6 d8Q Ra5 Q5d7 Kg6 Qfc7 Kf5 d5 Rb5 Qcc8 Ra5 Be5 Rb5 Qb8 Ra5 Na6 Ke4 Qda7 Rb5 d6 Ra5 Qbb4 Rd5 Nac5+ Kf5 Nd3 Ke4 Bb6 Nb8 Rf1 Rd4 Ncb2 Ke3 Qc4 Nh4 Ba8 Ke2 Bc5 Rd5 Qf4 Be3 Nc4 Nbc6 Rf3 Bc1 Bg1 Be3 Rf1 Bb6 Be3 Bc7 Qad4 Bb6 Ndc5 Nf3 Rf2+ Ke1
B6r/1NPNr3/K5B1/Qb2b3/q1q2b1n/2R1Q1R1/2bQN2b/qNBnBk2 w - - 0 1 illegal: No possible last move, all moves rejected
K1q1q1kr/QNR1Qr2/5r1n/n1BQ2NQ/b1bB4/1N1R4/r6P/b1Bq3B w - - 0 1 illegal: No possible last move, all moves rejected
1b2kNQ1/3q4/1B2b1bn/R5Qq/1q3B1N/1n2rQN1/B2NrP1r/1KRB3b w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 e5 Kd2 a5 Kc2 c5 b4 h5 g4 a4 b6 a3 d6 e4 d7+ Ke7 b7 e3 b5 e2 d5 e1Q b6 h3 d6+ Kf7 f6 h2 g5 h4 Be2 h3 Nd2 a2 Ngf3 c4 Nh4 Na6 b8Q c3 b7 Nh6 Bf3 Qde7 d8Q Be6 d7 Nc5 Qa5 Ra6 d8B Qd7 g6+ Ke8 g7 Nb3 g8B Bd6 Qg5 Ra3 Qc8 Qe5 b8N Qd5 Re1 h1B Nc6 h2 Nd4 Bb8 Ndf5 Bg2 Qe2 h1B Ng3 Qc4 Qd3 Qb4 Bd1 Be4 Qc4 B4f5 Bb6 Bg6 Re5 Rh7 Ra5 Rh8 Rb1 a1R f7+ Kf8 Bb2 R1a2 Rc1 Rh7 Kb1 Rh8 Qh5 Ke7 f8N Ke8 Qg5 Rh7 Ndf1 Rh8 Ba1 Re2 Nd2 c2+ Kb2 Qba4 Qcd5 Qg4 Q3f3 Qh5 Qa8 Nc5 Qad5 Rae3 Ka2 Rh7 Be5 Nb3 Bf4 Rh8 Rb1 c1Q Ra1 Qc3 Rc1 Re4 Kb1 Qb4 Qa8 Bef5 Bc4 Be6 Bd5 Bgf7 Bc4 R4e3 Qad5 Rh7 Qg8 Rh8 Qdg5 Bg6+ Bd3 Nf7 Nhf5 Qh3 Kb2 Ne5 Bb1 Ng4 Ba2 Rh5 Kc2 Nh6 Kb1 Qg4 Qe4 Rh2 Nh4 Qh5 Qd3 Re4 Qf3 R4e3+
q4B2/b6r/Qn1bR2Q/B4n2/1R1NRR2/k2nbN2/1r2P2K/1QQBq1qb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 Kd6 d4 c5 h4 g5 b4 a5 h6 f5 h7 a4 b6 a3 b5 f3+ Kh2 f4 h5 a2 h6 c4 b7 f2 b6 f3 Nd2 c3 Bh3 f1Q Nb3 c2 Bf5 f2 Nf3 Nd7 b8R g4 b7 Qc7 Ba3+ Nc5 Qc1 Qd1 Rf1 Qe1 Bd7 Qd8 Ba4 Nf6 Rb1 Rg8 h8Q a1Q h7 Nd7 Rb2 Nb6 Qf6+ Be6 h8Q Rg7 Qhh6 Rh7 Qg6 Qg5 Re8 Rb8 Qd3 Qg6 Qa6 Bc8 Re4 g3+ Kh1 g2+ Kh2 Bd7 Rb1 Bc6 Re6+ Kd7 d6 Nd3 d5 Qe8 Nbd4 g1B+ Kh1 Qc8 Rb4 Qd8 Qd2 c1B Bd1 Qe8 Qb2 Be3 Qc1 Kd8 d7 Kc7 d8R Bd6 Bb2 Qg8 Rde8 Qa5 Ba3 Qg3 Qac4 Qa8 Qa6 Rc8 Ra4 Bdf4 Rd6 Nd7 Ng5 Rb8 Nf5 Ba7 Nd4 Qe3 Rf6 Qg3 Bf8 Bh2 Re5 Be3 Rfe6 Qg4 Rf5 Bd6 Rfe5 Nb4 Kh2 Nd3 Qac4 Kb6 Qa2 Rc8 b8Q+ Bb7 Qaa1 Rc2 Qab1+ Kc5 Qc8+ Bc6 Qcb7 Nb6 Qa6 Be7 d6+ Bd5 d7 Bd6 Qd2 Rb2 Qdc1+ Qc3 Ra5+ Kb4 Ra3 Qe1 d8B Na4 Rc3 Bh1 Rc4+ Ka3 Ba5 Nb6 Rb4 Rh8 Ngf3 Rh7 Nd2 Qg6 Rg1 Qg7 Rg4 Qg5 Rf4 f1N+ Kh3 Qg6 N2f3 Ng3 Kh2 Nf5 Ree4 Qgg1+
qR4b1/nn2N1Br/5n2/rQN1n2R/8/1b1q1B2/k1BNPbQ1/2Kr1QBN w - - 0 1 illegal: No possible last move, all moves rejected
R1nRB3/4bNrb/B3bQ1B/B3n1nR/R3Qq2/3r3N/q1P2N2/bk2rK2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 Kf7 b4 h5 f4 e5 f6 Ke6 f5+ Kd5 b6 a5 b5 a4 b7 h4 g6 e4 b6 e3 g5 e2 g7 Kc4 f7 d5 g6 h3 f6 d3 Kf2 e1N Nc3 h2 Nb5 d4 Qg4 a3 Nc7 Kc3 Na6 a2 Nh3 d2 Qe4 d1Q Bh6 Kb2 Nc5 Qd5 Ba6 d3 Kf1 Ne7 g8B d2 g7 Nbc6 b8R Ra7 b7 Be6 Ra8 Nc8 b8B Ne5 Bc7 Qc1 Ba5 Be7 f8Q d1R Bf7 Rd3 g8N Rb7 Be8 Qf4+ Qf3 Rh7 f7 Rg7 Ne4 Rb4 Nef2 Re4 Qg2 N1f3 Qg4 Ree3 Qf5 Ng5 Qe4 Bd8 Qd6 Be7 f8R Re2 Bc6 Ree3 Rd8 Qb3 Be8 Qc4 Rg1 h1B Qdc6 Bf3 Rh1 Bfg4 Rh2 Bef5 Qf6 Bh7 Ng1 Be6 Rh5 Re2 Nh3 Qb3 Rd1 a1B Rd4 Qa2 Ra4 Rc3 Rd5 Kb1 Rd8 Bd6 Ne7 Rce3 Nf5 Be7 Nd6 Rd3 Nf7 Re1+
R4rB1/2Qr1Qq1/nR2r2B/k4q2/1nBbNN2/1n2n3/2P1RN1N/K2b1Rb1 w - - 0 1 illegal: No possible last move
4r3/Q1nN3N/1nr5/2Qbbb1B/K1N2R1B/Br4RB/kP2q1R1/q2rRq2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 d4 h5 Kd2 e5 Kc2 a5 Kb3 c5 g4 h3 g5 c4+ Ka4 h2 g6+ Kf6 g7 c3 d6 e4 d7 h4 b6 e3 d5 e2 d6 e1Q b7 c2 Qd4+ Qe5 Bd2 c1Q Ra3 h3 Rg3 Na6 b8N Nc7 Bb4 Ra6 Nd2 Rc6 Ba3 Qa1 Ngf3 Ne7 g8B Bg7 Bf7 Qf8 d8R Ned5 Qa7 Qe2 d7 Rg8 Rhg1 h1R Nc4 h2 Bh5 Rh8 R1g2 Nb6+ Kb3 Rg1 Ng5 h1B Re8 Qf7 Re7 Re8 d8B a4+ Kb4 Bh8 Nd7+ Kg7 Rf2 Bd5 Bh3 Rd1 Rfg2 Rd3 Ka5 Rb3 f6+ Kg8 f5 Bg7 Bc5 a3 Nh7 a2 Ba3 Qf8 B5g4 Bh8 f7+ Kg7 f6+ Kg6 Nb8 Bf5 Re4 Qef1 Ree3 Qe7 Re1 Qee2 f8R Bg7 f7 Be5 Bh4 Kg7 Ng5 Kf6 Nh7+ Ke6 Bf3 Qc1 Bh5 a1R Nd7 Qb1 Re3 Qa2 Rf3 Rd1 Rf4 Qa1 Rfg8 Be4 f8Q Kd5 R8g5 Kd4 Qc5+ Kd3 Qe7 Kc2 R5g3 Kb1 Qd6 Bd5 Qc5 Rd3 Kb4 Ka2 Ka5 Rc3 Kb4 Rb3+ Ka5 Nc8 Ka4 Nb6+
1B1K4/1n4nR/k1q1Q1r1/nR2Q3/2Q3N1/1Q2qBqP/1BRb1rb1/b3NR1n w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 Kb7 b4 a5 f4 g5 d4 g3 b6 c4 b5 g2 d6 e6 f6 c3 d7 c2 d5 a4 f7 a3 d6 a2 f5 g4 f6 g3 Nd2 Bg7 f8R Nh6 Ndf3 Rg8 Rb1 a1N Nh3 g1B Bb2 c1Q Bg2 Nb3 Ne1+ Qc6 Bf3 g2 Nf2 Qe8 d8Q Ra2 d7 Na6 Qe7 Nac5 Ng4 Na5 Qb3 Nf5 d8Q+ Bd7 h3 Be3 Rh2 g1Q Rc2 Bd2 Rf7 Bh8 Rh7 Ng7 f7 Qg3+ Kf6 e5+ Qee6 e4 f8R e3 Qe7 e2 Q7d6 Bc8 Qec4 Qe3 Qde6 Bd7 Ke7 Be8 Ng2 e1N Kd8 Ned3 Ne1 Nf2 Rf5 Nh1 Ra1 Ka8 b7+ Ka7 b8B+ Kb7 b6 Bg6+ Rf8 Be4 Rb1 Bd5 Qcb4 Ka6 b7 Ne8 Rf4 Rg6 Q4c3 Ng7 Rb4 Bc4 Rb5 Bf1 Qcc4 Bg2 Ba7 Nh5 b8Q Bd4 Qbe5 Ng7 Bb8 B4c3 Bc1 Ba1 Bb2 Ra4 Qf1 Rf4 Qfc4 Rff6 Nd3 Rf7 Rf1 Rf4 Ne1 Rf5 Be4 Rf2 Bf3 Ncb7+
qNQ1B1n1/2BB2q1/3r1R2/q2r4/n1Q1Rr1b/k4b1P/1b1RR3/3bKNBQ w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Kd7 e4 Kd6 b4 g5 b6 c5 h3 a5 b5 f5 b7 c4 b6 a4 h6 f3 h7 c3 Bb5 f4 Ne2 c2 Bd7 a3 Be3 c1B Rf1 g4 Bg1 a2 Nd2 Na6 b8R g3 b7 g2 Qc2 Qc7 Qc4 Nc5 Rb1 a1Q Rb2 Qca5 e5+ Ke7 e6 Kd6 e7 Ra6 e8B Na4 Ra8 Bh6 b8R Qa3 R8b4 Bb7 Rd8 Bg5 Rf2 Bc6 Nf1 Rb6 Rd2 Bb2 Ra8 Rb5 Ra6 Qa2 Neg3 Rb6 Nh5 Bb7 Rfe2 f2+ Kd1 f3 Nf6 Rc6 Rab6 Nh6 Ra6 Rf8 h8Q Ng8 Qh7 Rf7 Qe4 Rf8 Ng4 Rf5 Ne5 Rb6 Nc6 Qa3 Ne3 f1B Ke1 Qa2 Nb8 Rc6 Rf2 Be2 Nf1 Bd1 Rfe2 Re5 Qf4 Qa1 Qh2 Qa3 Qh1 Qa2 Bf2 g1Q Rab6 Qg4 Bg1 Qa8 Rb3 Qa1 Rbe3 Qh5 Re4 Qh7 Rb3 Qg7 Rbe3 Qa3 Rf4 Qc5 Ree4 Qca5 Rf5 Kc7 d6+ Kb6 Rf6 Rd5 Qc1 Kb5 Qc2 Kb4 Qd3 Rf5 Qc4+ Ka3 d5 Qd8 Be6 Ra6 d7 Qa5 d6 Rd5 d8B Rb6 d7 Rbd6 Bc7 Bc6 d8Q Bb7 Ne3 f2+ Kf1 Bc6 B6d7 Bb7 Qc8 Bc6 Kg2 f1R Kg3 Rf4 Nf1 Rh4 Kf2 Rf4+ Ke1 Rc5 Re5 Bf3 Ree6 Rcd5 R6e4 Bh4+
b3qN1R/KRnbk3/2Bnr1Q1/QR1RN3/7b/2QP1n1r/1Bq1Bn2/B2r4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Kd3 c5 Kc4 h5 f4 a5 b4 a4 g4 h3 g5 h4 d3 h2 d6 e4 g6 e3 f6 e2 b6 e1R Kb5 a3 f7+ Kd7 g7 c4 b7 a2 f5 c3 f6 h3 Nd2 c2 Ne2 Rh4 Nf3 Na6 b8R Rh5+ Ne5+ Ke6 d7 Rh8 Rb7 Qc7 d8Q Rh6 Bb2 c1Q Qb3+ Q7c4+ Kb6 Qb1 b5 Be7 f8Q Qc1 f7 Bd7 Qc3 Qe4 Qfe8 Nf6 g8B Nc7 f8B+ Kd6 Bc4 Rd1 Qg6 Qc2 Nd4 Rb8 Rc1 a1N Be2 Nb3 Ka7 Nd2 b6 Nf3 Ne6 Nfe8 Bg7 Bh4 Bd5 Rh8 Rb1 Rh6 Rg1 h1B Rg5 h2 Bc6 Bg2 Ba1 h1N Rb5 Nf2 Bf6 Rh7 Nf8 Re7 Rf5 Re6 Bh8 Rc8 Qdg5 Rb8 Qgd2 Qea4+ Qa5 Ke7 Qc3 Nd6 Rh5 Qd2 Bg7 Rd8 Rh8 Qb2 Rd5 Qbc2 Bb5 Re8 Bh6 Nd4 Rb8 Bc8 b7 Be4 Ned7 Rf6 Rf5 Kd8 Bc1 Ree6 Bcb2 Ke7 Rg5 Bc6 Rd5 Rf3 Ne5 Rg3 Ra8 Rf3 b8R Rh3 Rb6 B6b7 Rb8 Ba8 R8b7 Nf3 Be8 Qd7 Rbb5 Qd8 Bd7 Qe8 Bc6 Bd7
1n1K3B/kNQBN3/n2N1b2/qQ6/r4B1n/q1rP4/Qq1R1qb1/1Rb2NB1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Ke4 h5 Ke5 c5 g4 Kc7 f4 Kb6 b4 c4 f6 a4 g5 e6 d6 h3 f5 h4 g6 c3 g7 h2 d3 h3 d7 c2 f7 a3 f6 a2 Bf4 c1N Nf3 Ra6 Qd2 Qe7 d8N Rh4 Nd4 Nh6 g8N Ra4 Nf5 Ra6 Nb7 Ra7 Nfd6 Nb3 Qe2 Ra8 Nd2 Nc5 Rb1 a1B+ Rb2 Qc7 Ne7 Ka7 Qf2 Bg7 f8B Qa5 Qe2 Bh8 Bg7 Nf5 f7 Nca6 Kf6 e5 f8B e4 Bg2 e3 Bc6 Bd7 Rb1 h1Q Nf1 h2 Qf2 Be6 Bd7 Qg2 Qc2 h1Q Qa4 e2 Qa2 Nd4 Rd2 Bh3 Kf7 e1Q Ke8 Qa3 Kd8 Nf3 Bb2 Qe5 Bd4+ Qc5 Bg1 Bhb2 Bg7 Qgf2 Bh8 Bg2 Be3 Nc7 Bf4 Qh2 b6+ Ka6 Na5 Bc1 b7 Bf6 b5+ Ka7 b6+ Ka6 Bg5 Rc4 Bf4 Rc3 Bg4 Nd7+ b8Q Nh4 Nab7 Qca5 Qc8 Nb8 Bd7 Nd5 Qc7 Nb4 Rd1 Qfb2 Rd2 Qg3 Qc6 Ra7 Qc7 Qf2 Nb5 Q5a4 N5d6 Qb5 Na5 N8c6+ Ke8 Qg5 b7 Qgc5 b8Q Qf5 Qa8 Nb8 Q8d5 Ra8 Kd8 Qg5 Qcc4+ Kb6 Nab7 Ra4 Qe5 Ka7 Qc7 N4a6 Qea5 Qgb5 Qb4 Qbb6 Qb5 Qa5
B4nQq/4b2q/1QB3b1/Qnn1q3/N4bbP/r2QB3/2r2NNk/KB3RR1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 d4 f5 Kd2 g5 Kc3 c5 b4 a5 Kb2 a4 e4 a3+ Ka2 f4 b6 c4 b5 c3 b7 c2 d6 Ke6 b6 f3 d7 g3 Qd3 g2 Qa6 g4 Be3 c1B Qa5 f2 Nh3 g1N Nc3 g3 Bd3 f1B Bb1 g2 Nf2 Nf3 Rg1 Na6 b8Q Nc5 b7 Nf6 Na4 Bd3 Rf1 Qc7 d8Q g1Q Qba7 Nfd7 b8Q Qg3 Q7b6+ Bd6 Rg1 Nf8 d5+ Kf7 e6+ Kg6 e5 Kf5 e7 Nd4 e8B Be7 d6 Nb5 e6 Qe5 d7 Bc2 Bd4 Kf4 Be3+ Kf3 Rf1 Kg2 Bg6 Rh5 Be4+ Kh2 Rg1 Ra7 Ba8 Bg6 Rf1 Qb7 Q8d6 Qe4 Qd3 Rc7 Qe8 Rf5 d8N Rf3 Qf7 Q4f5 Qg8 Qh5 Rg1 Qh7 Rf1 Rf4 Rg1 Rc4 Rf1 Rc3 Rg1 Bd6 e7 Bg4 e8B Be7 Ne6 Qeh8 Bec6 Rc8 Bd4 Bf4 Be3 Rc7 Bc2 Qe5 Raf1 Qeh8 Ka1 a2 Bb1 Rc8 Nd4 Qe5 Nc2 Rc7 Kb2 a1Q+ Kc1 Rd7 Qb3 Qeh8 Qdc4 Rd2 Qd3 Re2 Qg8 Ra3 Ne1 Qae5 Ng2 Rb3 Qc2 Rc3 Kb2 Rd2 Ka1 Re2 Qf5 Rec2 Qd3 Ra3#
2n5/Nr1R2N1/3BBN2/1r4R1/k3qPbb/rbRRnn2/B1Q1N2K/3qb2Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 Kf2 c5 g4 h5 Kg2 a5 d4 e5 b4 c4 g5 a4 g6 c3 b6 c2 b7 a3 g7 e4 d6 Kc6 d5+ Kb6 d7 a2 d6 e3 b5 Ka5 b6 e2 f6 e1Q f7 Qb4 Nd2 Nc6 b8N Ne5 b7 Be7 f8N Rh7 Ba3 c1B Ne4 Bd2 Rc1 a1N Rc3 Nc2 Ne2 h3+ Kg1 h4 Nc6+ Kb5 Ne6 Ra4 Na7+ Ka5 b8Q h2+ Kg2 Qb1 Rg1 h1R Qe1 h3+ Kg3 h2 Qb3 Ne3 Bh3 Nf3 Rg2 Bg5 Nf6 Qe4 Qc2 Ne7 g8B Rh5 Qa1 Rb1 Ng7 Rb7 Bc5 Ra2 Qh1 Ra3 Bg4 Bh4+ Kh3 Bde1 Ba2 Qb6 d8R Qb1 d7 Rd5 Bf5 Qd1 Rg5 Re5 Re8 Rd5 d8R Bd7 Rf8 Nc8 Rf7 Be6 Bf8 Rdb5 Rdd3 Bb3 Rfd7 Ka4 Bd6 Nd2 Qf1 h1B Kh2 Bf3 Qh1 Bg4 Be6 Nf3+
1BN2qr1/1RbR2Q1/4Br1r/5N2/PnbRbq1Q/Q2N3n/N4q2/qQ2K2k w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 d4 e5 a4 c5 d6 b5 d5 g5 d7 e4 h6 e3 h7 b3 d6 g4 h5 c4 h6 e2 Rh4 c3 Nh3 g3 Nf2 c2 Nd3 b2 Bh3 b4 Nc3 b1R Na2 g2 Ba3 Rb3 Rb1 c1Q Bg4 Qe7 d8R Nc6 d7 Ba6 Rb2 Qa1 Qb1 Bc4 Bh3 Rc3 Bg4 b3 Bd6 Qf7 Bb8 Nge7 Bh3 Rg8 h8N Nb4 h7 Ra6 Ng6 Ned5 h8N Bd6 Ne7 Bc7 Nc8 Qf8 Nf7 Rc6 Nfd6 g1Q+ Bf1 Qd4 Bh3 Ne3 Rh7 Nd1 Re7 Nf2 Re4 Kg7 f6+ Kh6 f5 Kh5 f7 Qe5 f6 Qf4 Bf5 Kh4 Be6 Kg3 Rd4 Kg2 Nf5 Rc2 Nfe7 Nh3 Nf5 Qe7 f8Q Kh1 Qg7 Qf8 f7 Rc3 Rd2 b2 Re8 Ra6 d8Q Rc6 Qh4 Rb3 Nc5 Rf3 Nd3 Rb6 Re7 Rf2 Qd1 b1B Rb2 Rd6 Rd7 Bc2 Qb1 Rf3 Nc5 Be4 Nd3 Ra6 Bd5 Rh6 Be6 Rg3 Rb3 Rgg6 Rb2 Rf6 Rb3 Qe7 f8Q Qf7 Qc5 Qf8 Rb2 Bb5 Qc3 Bc4 Qa3 Nd5 Rb7 Nb4 Ne3 Nd5 Kd2+ e1Q+ Kc2 Qg1 Kd2 Nb4 Ke2 Kh2 Nf5 Qg2+ Kd1 Kh1 Ke1 Qgf2+
n1R1n1R1/BBbqrk2/Rn2RB2/Qq2r3/P7/1b1bqN2/1B1NNK2/3qQ3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 c5 h4 e5 a4 g5 d4 b5 f6 b3 h6 b2 f5 c4 d6 e4 d7+ Kf7 h7 g4 d5 c3 h5 c2 d6 e3 h6 b4 Ke2 g3 Bg2 b3 Bb7 g2 Qe1 Na6 Nd2 b1Q Ngf3 g1Q Bb2 c1Q Rh4 Qe7 d8R Nc7 d7 Ra7 Rg4 Qe6 Rg6 Na8 Bd4 Ra5 Ba7 b2 Re8 Qd6 d8Q Re5 Re6 Qd7 Qa5 Bd6 Ra3 Qg4 Rc3 Bc7 Kf1 e2+ Kf2 Qge4 Rcc6 Qcc4 Ra6 Qd1 Rg5 b1B Rg7+ Kf8 f7 Nf6 Rg3 Rg8 h8B Qcb5 h7 Ne8 Bf6 Bd3 h8B Rg7 Rg5 Rc5 Bb2 Re5 Rg1 Rh7 Bf6 Qf4 Bg5 Kg7 f8N Kf7 Bf6 Qh6 Rg8 Qe3+ Kg2 Rg7+ Ng6 Rh7 Nf4 Rg7+ Qg3 Rh7 Qh4 e1N+ Kg3 Ng2 Ne2 Nf4 Qh1 Nd5 Qe1 Qg5+ Kf2 Ndb6 Bg7 Qdd8 f6 Bd7 Bh8 Bc6 Bg7 Bd5 Bh8 Bb3 Bg7 Kg6 f7+ Nf6 f8R Qdd7 Kf1 Qf4 Rc8 Qe3 Re7 Ne8 Re6+ Kf5 Bf6 Re7 Rh8 Kg6 Rg8+ Kf7 Kg2 Qe4 Kf2 Qe3+
3QR1Rq/q2n1B2/5Q2/1BB1NQP1/1n1bbb2/r4rq1/2r1R1b1/kN2R1KB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 Kd4 d6 a5 b6 f5 b7 h5 g6 c5 d3 a4 g5 c4 b5 c3 b6 c2 d7 f3 e5 f4 e6 a3 e7 h4 e8B a2 g7 h3 Nc3 h2 Qe2 Na6 b8R Nf6 g8B Bc5 b7 Nb4 Bgf7 Ra3 Nb1 Qc7 d8Q+ Nd7 Qe6 Qe5 Bd2 c1B Bg2 Rh3 Kf1 f2 Qf5 Rf3 Qdf6 Bb6 Ra8 Ba7 b8Q Bb7 Qbd8 Be4 Rc8 Nc2 Ba5 Nb4 Rc2 Bc5 Re2 Bd2 Bb6 Be3 Nd2 Kc3 d4 Kb2 d5 Bcd4 Rae1 a1Q d6 Qa2 Nb1+ Ka1 Bc5 Bc1 Bb3 Rc3 Bg8 Rc2 Nf3 Bce3 Rg1 h1Q Bgf7 Qh8 Bh1 Bc1 Rg3 Bd2 Kg2 f1R Rh3 Rf2+ Kg1 B2e3 Rh7 Bc1 Rg7 Bce3 Nh2 f3 Ng4 Bc1 Rg8 Qg3+ Bg2 Bf4 Ne5 Rd3 Qb8 Qa7 Qbd8 Nf8 d7 Rb3 Qa5+ Ra3 d8R Nd7 Rb8 Rc4 Rc8 Rc2 Qad8 Nb6 Bb5 Nd7 Qde7 Rcc3 Re3 Rfc2 Rce8 Rd3 Qd8 f2+ Kf1 Rdc3 Bh1 Rcb3 R3e2 Rf3 Re3 Qgh4 Kg2 f1B+ Kg1 Qh3 Rg7 Bg2 Rgg8 Rff2 R3e2 Qg3 Rd2 Rff3+ Rf2 Bc3 Rfe2 Bd4+
4nN2/R2Q2BN/BK1rqBR1/Q3QPq1/1N4k1/1n1nr1B1/bbq3r1/5Nn1 w - - 0 1 illegal: No possible last move, all moves rejected
1bqq1R2/2B2B1K/2NNrBr1/1P1Rn1R1/BQ1n4/1b1r4/Qb1rk3/R1n3Q1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 a5 g4 e5 b4+ Kb6 d4 c5 d6 h5 d7 c4 d5 a4 g5 c3 d6 a3 f6 a2 Kf5 e4 Kg6 c2 f5 h3 f7 h4 f6 e3 Nc3 e2 Bf4 c1N Ne4 e1Q Ne2 h2 Rg1 h1R Nd4 h3 Nc6 h2 Be2 Bh6 f8R Ra6 f7 Qc3 Rg4 Nf6 Qg1+ Qc5 Bd1 Ra3 Ba4 Rd3 Rg2 Ng4 Rg3 Rg8+ Kh7 Bb7 g6 Ne5 g7 Bc8 Rg2 Ba6 Bg3 Bf4 Bh4 Bb7 Bf6 Ba8 Rg5 Rd2 Qd4 Re1 Qg1 h1R+ Qh2 Qc8 d8R Qd4 d7 Rhg1 Qf2 Rg3 Qg1 Rgd3 Nd6 Ree2 Rfe8 Re4 f8Q Ree3 Qf7 Ree2 Ne7 Bd5 Rf8 Bb3 Qc4 Nbc6 Qc2 Ka7 b6+ Ka6 b7 Qb6 b8Q Nd4 Nc6 Re4 Rb1 a1B Qa2 Bb2 Ra1 Qa5 Qa8+ Kb6 b5 Kc5 Qa7+ Qb6 Qa5 Kd5 Qb4 Re1 Nc4 Ke4 Nd6+ Kf3 Rfe8 Rf8 g8B Ke2 Bf7 Rg8 Rf8 Bg3 Rde8 Qbb8 d8B Rg6 Bc7 Qd8 Re7 Qbc8 Rd7 Kd1 Bb8 Nef3 Nb7 Be5 Rd5 Bd6 Qf2 Re6 Qe3 Bc7 Nd6 Ne5 Qg3 Ke2 Qg1 Bb6 Bc7 Ba7 Bh8 Bb8 Bg7 Re8 Bf6 Re6
5KRB/5N1B/q1Nb3Q/Pq6/bN3NbQ/1b2r1R1/1n4nn/1QQ1Rrkr w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kh4 d4 b5 f4 g5 a4 e5+ d6 g4 d5 b3 f6 b4 f5 g3 h6 g2 f7 b2 a5 e4 h7 e3 f6 b3 Nh3 g1Q Na3 b1B Nc2 b2 Nf4 c6 Ra3 Qe8 Nb4 Ba2 Bd3 b1B Bb2 Bc2 Qc1 Qg6 Re1 e2 h3 Kg3 h4 Kh2 h5 Be7 f8Q Ba4 h6 B2b3 f7 Nf6 Qg7 Qd7 f8Q Ng4 Qf5 Re8 h8N Na6+ Kd4 Bf8 h7 Nc5 Nf7 Re3 h8Q+ Qh6 Bb1 Nd3 Qgg5 Qb7 d7 Bd6 d8R Qb5 Rg8 Rb8 Ba1 Nb2 Bd3 Be6 Be4 Re8 Qh4+ Rh3 Bb1 c5+ Ke4 Qf6 Q8h6 c4 Qfg6 c3 Qgh7 Bc5 d6 c2 d7 Bd6 d8N Rf8 Ndc6 Bd7 Qd2 c1R Qf5 Rc3 Qc1 Qe6+ Kd4 Re3 Qfc2 Qg6 Q2d1 Qe6 Bh7 Qg6 Qd3 Bde6 Qdb1 Bc8 Rg1 e1N Rf1 Ng2 Re1 Bc2 Rd3 Bcb3 Rc3 Qf1 Rd3 Kg1 Rc3 Nh2 Rd3 Nc4 Kd5 Bg4 Bh8 Qh5+ Nfe5 Rf5 Ke6 Nb2+ Kd7 Qg5 Nf7 Rf6+ Kd8 Qb5 Rc3 Rd3 Ke8 Rd1 Re7 Re3 Kf8 Qa6 Rd3 Rf5 Rc3 Qfb5 Rd3 Rf1 Rc3 Rfe5 Rd3 Ree1 Rg3 R5e3 Nc2 Rc3 Ng6 Rff3 Qcd2 Kf1 Qdc1 Kf2 Nf4 Rh1 N2b4 Rcd3 Bg7 Rdd1 Bh8 Kg1 Qhg6 Rdf1 Qgh6 Bc7 Re2 Re3 Re1 Bd6+
r5n1/kbQ3P1/q1Rbb2B/Q2rn2N/B1B1B3/R1nR2r1/1Q3n1q/1R2KN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 g4 h5 b4 a5 e4 f5 b6 c5 e5 f3 d6 Kc6 d7 Kb7 e6 h4 b5 c4 e7 a4 e8B c3 d5 a3 d6 f4 g6 h3 g7 c2 g5 a2 g6 h2 Nh3 Qf6 d8Q Ra6 d7 Nc6 Bg2 Qg5 Qd6 Ra5 Nd2 Ne5 Nf1 Qh5 Q6c7+ Ka8 b7+ Ka7 b8R+ Bb7 Bd2 c1N Rc8 Bd6 Rg1 h1N b6+ Ka6 Qg5 Ne2 d8R Nc3 Ba4 Nf2 Rb1 a1R Be3 Be7 Rd3 Ra3 Ra1 Rb3 Ra3 Rd5 Rh1 Bd6 Bc1 Ba8 b7 Ka7 Rg1 Qh4 Bd2 Qg3 Qf5 Qh2 b8Q+ Ka6 Qb4 Bb7 Bh1 Ka7 Bc1 Rb1 Qb2 Ra1 Qg5 Rh4 Qh5 Rg4 Qf5 Rg3 Bg2 Nf6 g8B Ra2 Be6 Ng8 g7 Neg4 Nd2 Rc5 Be8+ Ra5 Rd5 Ne7 Ra4 Nh1 Qc4 f2+ Kf1 Ng8 Be4 Ra1 Rc7 Kb8 Rcc5 Ra8 Ra3 Rb1 Ba4 Ka7 Rc7 Ra1 Qc6 Rb1 Qd7 Ra1 Rc6 Rb1 Rd4 Ra1 Qd5 Ne5 Qc7 Rb1 Qa1 Rb5 Qb2 Na2 Ke2 f1B+ Kd1 f3 Nf4 f2 Nh5 Bd3 Re1 f1Q Qc5+ Rb6 Qa5+ Ba6 Beb3 Rb5 Rd5 Qc4 Nf1 Nf2+ Kd2 Rc5 Rd3 Nc3 Rd1 Qb5 Ke1 Qc4 Ba2 Qb5 Bh6 Qb6 Qab4 Bc4 Rb1 Be6 Bc4 Rd5 Qa5+ Qa6
1N1R2nr/1qB3P1/b1N1qNB1/4R1RN/bQ2R1Q1/2r3bn/B5br/K5kq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 Kc3 c5 b4 h5 Kb2 f5 g4 h4 g6 h3 b6 f3 b7 a4 e5+ Kc7 e6 Kb6 g7 c4 d6 f4 d7 h2 g5 f2 b5 f3 e7 Ra7 e8B Na6 b8N Nc7 g6 Bd6 d5 Kc5 b6 Ba6 b7 Bg3 d6 Qf6+ Nc3 Nd5 d8N Nf4 d7 Nh3 Bf4 Qe6 Ndc6 a3+ Kb1 Ra8 Nd5 c3 Bc4 f1B d8R f2 Bc7 Bg2 Qg4 f1B Ba2 Bfb5 Ne2 Ba4 Re1 h1Q Nf6 Rh6 Nf4 c2+ Kc1 Rh8 N4h5 Rh7 Rb1 Rh8 Rb4 Ra7 Bc4 a2 Kb2 c1R Bd5 Rc2+ Ka1 Rc3 Re4 Ra8 Re5 Rh7 Be4+ Kc4 Bd5+ Kd3 Re4 Qf1 Re5 Qf3 R1e4 Kd2 Nbd7 Rc8 b8Q Rh8 Qb6 Rb8 Qa5 Rb2 Ndb8 Kd1 Qb4 Re2 Rf5 Ke1 Rfe5 Kf1 Bb3 Kg1 Bc4 Nh6 g8R Rd2 g7 Rf2 Rf8 Ng8 Bg6 Rfc2 Rfe8 Rb2 Rg5 Rbc2 Nd4 Re2 Ree5 Qb7 Ndc6 Qe7 Re6 Kh1 Na5 Bf3 Nac6 Rh2 Re4 Bg2 Kb2 Qd6 R8e5 Qe6 Bb3 Re3 Kc1 a1Q+ Kc2 Qf1 Kb2 Rc3 Ka2 Kg1 Bd5 Kf2 Kb2 Qh1 Ba2 Kf1 Ka1 Kg1
q1bKNQ2/r1nQP1b1/1B4Q1/3BNBRn/Q5Rr/1b1q1r1q/2BN4/3q3k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 h5 g4 a5 b4 f6 g6 f3 g7 c4 b6 f2 b5 c3 b7 a4 b6 a3 g5 c2 g6 h4 Nf3 a2 Ne5 h3 Nd2 h2 Rg1 h1R Rg4 Nc6 b8Q+ Qc7 b7 Ra5 Bh3 Nh6 g8B f1B g7 Rh2 Bh7 Nd8 g8B Ke7 d6+ Ke8 d7+ Ke7 d5 Kd6 e3 Ne6 d8N Nf5 Ndf7+ Kc5 d6 Rf2 d7 Ra7 d8Q Bg7 Qa8 Rf3 b8Q Bc4 Qd7 Qd6 Qg1 Nc7 Bb2 Qe6 Nd6 c1Q Ne8 Qd1 Bc1 Qd6 Bd5 Bb3 Rb1 a1Q Rg5 Ne7 B3f5 Ng6 Qg4 Qa3 Ra1 Qaa6 Ra4 Nf4 Qh5 Qe6 Qg6 Nh5 Bb2 Qec6 Bc3 Qaf1 Ba5 Qh3 Bb6+ Kb5 Be6 f5+ Kd4 f4 e4 Rc3 Bf5 f3 Rc4 f2 Ra4 f1Q Rc4 Na6 Qbd6 Nc7 Qf8 Rf3 Rb4+ Ka6 Rc4 Qb7 Kc5 Qd3 Kd6 Qc6+ Ke7 Kb5 Rc1 Kb4 Kd8+ Kb5 Rc5+ Kb4 Ra5+ Kc3 Rg4 Qa4 Rc5+ Kd4 Qac6 Qa5 Qa4+ Ke3 Rg5 Kf2 Rc4+ Qd4 Qgc6 Qdh1 Bg4 Kg1 Ng6 Ng3 e5 Rb7 e6 Qa8 e7 Ra7 Ne5 Kh2 Bg6 Rh4 Bc2 Qd1 Qg6 Kh1 Bgf5 Qd3 Rcg4 Nh5
3bbQ2/r2Pr1B1/1qN2N1n/2BKNQB1/1qQ1br2/6k1/4RR1r/nB3qN1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Kf4 d4+ Ke4 f4 c5 g4 a5 b6 e5 d6 h5 b7 h3 b5 a4 b6 a3 d5 a2 d7 h2 d6 h4 f6 h3 f7 Bg7 f8Q Ra6 f5 Nc6 b8Q Rh4 b7 Nh6 f6 Ra7 f7 Nd4 g5 Nc2 g6 Qb6 d8N Rf4 Qg4 Bd7 Qc8 Bf6 b8B Be8 g7 Re7 Na3 Bg5 Rb1 a1R g8N Ra2 d7 Na1 Ba7 Bh4 Kc3 c4 Nc6 Bf6 Rb5 Bh4 Kb4 c3 Kc4 c2 Rb2 Bf6 Be3 c1Q+ Rc2 Qd1 Rf2 Bh4 Be2 Qf1 Qh5 Bg5 Nf6+ Kf5+ Kd5 e4 Bc5 e3 Nc4 Ra3 Bf3 e2 N4e5 e1Q Qa6 Qeb1 Qc4 Q1b4 Bb8 Ra2 Bc7 Ra7 Bd8 Re4 Qg6+ Kf4 Qf5+ Kg3 Be2 Rg4 Bd3 Rf4 Bb1 Bh4 Ngf3 Qe2 Rd1 h1R Rd2 Qf1 Ng1 Rh2 Rde2 Rg2 Qh8 h2 f8B h1B Bg7 Bg5 Qf8 Rh2+ Kd6 Rf7 Be7 Be4 Ke6 Bh4 Bd8 Re7+ Kd6 Bc2 Kd5 Be4+ Kd4 Rf7 Nh7 Bc2+ Kd5 Bf6 Bde7 Bh4 Bed6 Bd8 Be7 Bd3 Bg5 Re7 Nf6 Be4+
Q1N3R1/1nPN1R1b/Q3q1r1/nR2Nr1B/bb4n1/1q4R1/1KB1rB2/1b3kN1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 d5 c4 h5 Kc2 a5 f4 e5 g4 a4 b6 a3 b7 e4 c5 e3 g6+ Kf6 b5 a2 c6 d3+ Kb2 e2 c7 e1Q g7 h4 b6 d2 Rh3 d4 Rg3 h3 Bd3 h2 Nc3 h1B Qe2 d1B Nb5 Rh6 Bc2 d3 Be3 d2 Bf2 Be4 Rb1 a1N Na7 Bb4 Qa6 Nc6 b8N Na5 Nbc6 Qd5 b7 Rg6 b8Q Nh6 g8B N1b3 Bf7 Nb7 Ne5+ Qe6 Be8 Qe3 Bf7 Bd7 Nc8 N3a5 Qba7 Rb8 Qa8 Ba4 Be8 Be2 Bf7 d1R g5+ Kg7 Be8 Rd5 f6+ Kh7 f7 B2d3 f8R Ng4 f5 Q3b6 f6 Qb5 Nef3 Rf5 f7 Qbc4 Ka1 Qb3 Ne5 Kg7 Ne7 Rd8 Nc8 Rd7 Rb2 Re7 Rb1 Rgf6 g6 Kh6 g7 Kh5 g8R Kh4 Rg7 Rg6 Rfg8 Nd8 f8N Ndb7 Bd1 Bc2 Nfd7 Bed3 Rf7 Be4 Rc1 Bb1 Rc5 Bed3 Rb5 Bdc2 Ne2 Bd3 Bc2 Be4 Rg1+ Kh3 Rg3+ Kh2 Ng1 Bd3 Rf3 Kg2 Rg3+ Kf1 Rh7 Rgg5 Bh5 Rg6 Rf7 Qec4 Nef3 Re2 Nfe5 Qe6 Rb6 Rfg5 Rfg7 Rh6 Rb5 Bh7 Re7 Rhg6 Rf7 Qd3 Kb2 Rf5 Rd5 Qf3 Rb5 Qfb3+
n1rRN3/k3n2Q/3NrR2/br1BB3/K4R1N/1r2rrQ1/qN5P/1Bb1R2b w - - 0 1 illegal: No possible last move, all moves rejected
n1QqK3/4N2N/2Q3Nb/rP3R2/2r1Rn2/Rb2n2r/1R2rrBQ/BN2kr2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 Ke6 h4 Kf7 e5 d6 c3 b6 h3 f5 c2 g7 e4 b7 e3 Qe2 Qb6 d8Q Ra4 d7 Na6 b8R Ne7 g8N Bh6 Ke8 Nd5 f7 Ra5 f8R Nf4 f6 Rh7 b3 Rf7 Bb2 c1R Nf3 Rc4 Ng5 Bb7 Bg2 Bd5 Qf3 e2 Re1 h1R Ne7 h2 Qc8 Rf1 d8Q h1R Nh7 Rh3 Qdc7 Rf2 Qc6 Rf1 Qg3 Nc7+ Kd8 Na8+ Ke8 Be6 Qh2 Rf2 Rg8 Rf1 Rg5 Rf2 Rf5 Bd5 Rd1 e1R Rd4 Ree2 Re4 Be6 Rb7 Rf1 Rd7 Qc7 Rd2 Qd6 Be5 Qd5 Rb2 Qd4 Nd2 Kc3 b4 Kd3 b5 Qd5 Rc1 a1N Nb1 Nc2 Bd4 Ne3 Rcc2 Rd2 Rc3+ Ke2 Ra3 Ke1 Be5 Re2 Bd4 Rg7 f7 Rff2 f8N Rf7 Bg7 Rf6 Nfg6 Bf7+ Kf8 Qd8+ Qe8 Rff3 Rg5 Rc3 Rc2 Nh5 Rc5 R6f4 Rf5 Rf1 Rd2 R4f2 Rda2 Qd6 Qec6 Bb3 Ke8 Rc4 Ba1 Nf4 Rb2 Qd8+
3N2R1/1R2R1rk/2N2bb1/1Q2B3/1rR1K1Qq/1B1B4/rQrrPqn1/1r1B3n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 a5 Kf3 c5 b4 f5 g4 Kf7 d4 Kg7 b6 h5 d6 c4 b5 a4 d5 c3 d7 a3 d6 h4 g6 c2 g5 a2 b7 h3 b6 h2 Bh3 Nc6 b8Q Rh5 b7 Kh8 g7+ Kh7 g6+ Kh6 Nd2 Rh4 Nb3 Nb4 Bb2 c1R Rb1 a1R Be5 Nd3 Na5 Rc2 Nc6 Nf2 Qd4 Ne7 g8B R8a7 g7 Ng6 Bb3 R1a2 g8B Be7 Bge6 Qh8 d8R Bf6 d7 Kh7 Re8 Rd2 d8R Bd7 Rg8 Be8 Qc8 Rg4 b8Q Rg7 Qb2 Rh4 Kg2 f3+ Kg3 Rhd4 Rd7 Rb4 Qb5 Nf4+ Bg4 Bf7 Re7 Ng2 Nh3 Bg6 Rhc1 h1R Rc4 Rc1 Bd1 Rcc2 Nf4 Nh1+ Kh3 f2 Bf3 f1R Be4 Rc1 Bd3 Rg1 Bf7 Rcc2 Ne6 f4 Kg4 f3 Ned8 f2 Kf3 Re1 Qg4 Rf1 Rd4 Rg1 Bb3 Re1 Rc4 Rg1 Bf5 f1Q+ Ke4 Qf2 Ra1 Ra8 Raa7 Re1 Rac7 Ra2 Rb7 Rc3 Bdc2 Rb1 Bd1 Rcc2 Nb8 Qd4+ Kf3 Kh6 Bd3 Qa7 Qf5 Qf2+ Ke4 Bf7 Qc8 Kg6 Qh3 Qhh4+ Qg4+ Kh7 Nbc6 Bg6+
2NB2Nk/Q2b1b2/r1r1b2N/R1b3B1/N2PRKnb/5Q2/nqq1b3/Q2Q3B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 Kf7 b4 Kg7 d4 c5 g4 a5 e4 h5 d6 h4 e5 h3 e6 c4 d7 h2 e7 a4 e8Q a3 b6 c3 g6 c2 b7 a2 b5 Ra7 g5 Nf6 b6 Na6 b8Q Ng4 b7 Nb4 Nc3 Rh6 Qee2 Kh8 Nh3 Qc7 d8B Be6 Bg2 Ra6 Nf2 Bc5 Re1 h1B Qa8 Qh7 Bd2 c1B b8Q Bd7 Nfe4 Be6 Rb1 a1Q Qba7 Qb2 Na4 Na2 Ra1 Qc7 Nd6 Bf7 Qe3 Qc6+ Ke2 f3+ Kd3 f2 Qef3 f4 Nc8 Qc7 Ke4 f1B Be3 B1c4 g7+ Kh7 g8N Kh8 g6 Bce6 Re2 Bd2 Re1 Bdb4 Re2 Be1 Bc1 Bh4 g7+ Kh7 Re1 Bd7 Be3 Rhc6 Nh6 Bfe6 g8N Kh8 Qf2 f3 Beg5 Bf7 Qfe2 f2 Qf3 f1B Re3 Qcb6 Kf4 Q6b3 Re4 Q2c2 Q8b8 Qbc3 Qbb1 Be2 Qb2 Nb4 Ra3 Na2 Qba1 Q3b3 Nab6 Bde6 Ra5 Qbb2 Na4 Bd7 Qfd3 Bfe6 Bf3 Bg2 Qb3 Bgf1 Bh1 B2c4 Qbf3 Bfe2 Bb6 Bf7 Bbd8 Bce6
1n1Rr1rK/1qn3R1/3N2B1/2B1b2P/k2Nb1N1/2rQQ2R/b1bB1RN1/2b3r1 w - - 0 1 illegal: No possible last move, all moves rejected
7R/1b2BQ1B/1nB1K1n1/b1P1nNQQ/bn1Nq3/2rkn1R1/2R4Q/1b4rR w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 e5 Ke4 a5 Kd5 h5 f4 d3 c4 h4 g4 h3 b4 e4 g6+ Kf6 g5+ Ke7 g7 e3 g6 Kf6 b6 e2 b7 e1N b5 d2 b6 a4 Ra2 h2 Qh5 d1B Nc3 a3 Nf3 Ba4 Rc2 a2 Ne2 a1N Ng3 Qe7 Bg2 Nd3 Ba3 Ne5 Nd4 d6 Bb4 Nbd7 b8R Qe8 b7 Nb6+ Ke4 Ne7 g8Q Bh6 g7 N7g6 Qd5 Rh7 g8B Rg7 Bh7 Bcd7 Rd8 Rc8 b8Q Bdc6 Ba3 Bb7 Bc5 Qe7 Rh8 Qe8 Nf1 Bg5 Ne3 Bh4 Ba3 Be1 Rg8 Ba5 Bf3 Ke7 f6+ Kd7 Kf5 Qe7 Rc3 Nc2 f7 Nb4 f8Q Qe8 Qc5 d5 Rc2 Qe7 Be4 Rc7 Qb5+ Kd6 Qf7 Qh4 Qg5 Qe1 Q5e8 Kc5 Ke6 Qe2 f5 Qg2 Rb1 h1B f6 Qe2 Ra1 Qd3 Bf3 Qe4 Nef5 Bg2 Rh1 Bh3 Ne2 d4 Bg2 d3 Nd4 d2 Bf3 Qf4 Bc6 d1N Rh8 Ne3 Rg8 Nh8 Qfh5 Rc8 f7 Nhg6 f8R Qe4 Qf7 Bg4 Rh8 Be2 Rfg8 Bd3 Rcc1 Bb1 Rc2 Ne7 Qgh6 Rg1 Rg3 Rc7 Qd8 N7g6 Qdg5 Rc8 Qh2 Rc7 Q6h5 Rd7 Nf3 Rd3 N3d4 Rc3 Bc1 Nbd3 Qgf6 Ng2 Bg5 Ne3 Qd8 Kb4 c5 Kc4 Bf6 Nb4 Qdg8 Kd3 Be7 Nh4 Qgg5 Nhg6
n1r1r2k/1nQ3nB/1n5P/b1R5/Q1Rq1q1R/KnNbN2n/2NB1R2/1NQ5 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 a5 d4 g5 Kd2 Kg7 Kc2 c5 Kb3 e5 d6 g3 d5 g2 d7 g4 f6+ Kh7 f7 e4 b6 a4+ Ka3 e3 b4 e2 b5 e1Q b7 g3 d6 c4 h5 c3 f5 c2 h6 Ra6 f6 Ne7 b6 Qe5 Rh4 Ra8 Ne2 g1N Bd2 c1N Nec3 g2 Bd3+ Nf5 Qb3 Be7 f8Q Nf3 f7 Na6 b8R g1N b7 Nc7 Qe8 Qh2 f8R Qf4 Qd1 Nb3 Qc1 Ne5 Ra2 Bg5 Rc2 Nh3 Be4 Qf6 d8Q Na5 d7 Qb6 Rf6 Qd4 Rc6 Rg8 Rc5 Kh8 Bd3 Ng7 Bh7 Rf8 Qde7 Bf6 d8N Bf5 Nc6 Bd3 Rc8 Nd7 b8N Nb6 Na6 Nb7 Ncb4 Be5 Q8d7 Re8 Nbd5 Bf6 Qf7 Bd8 Nab4 Rb8 Qc6 Nca8 Ne3 Bc7 Qe4 Bd8 R8c6 Rc8 Rc4 Bc7 R6c5 Bd8 Rb2 Bc7 Nbc2 Bd8 Kb4 a3 Qc7 a2 Ka3 a1N Qec6 Nb3 Qa4 N3a5 Rbb5 Nb3 Rf5 Qfe5 Rf2 Qef4 Rbc5 Nd5 Qb8 Ba5 Qc7 Ndb6
8/R2B1QK1/1R1bbPbn/n2r3R/1QR2N1r/N1B2B1r/b2r4/1Nq1bkN1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 a5 b4+ Kb6 g4 h5 f4 c5 d4 h3 f6 c4 g5 h4 g6 c3 g7 h2 d6 a4 d7 e6 f7 a3 d5 c2 d6 h3 f5 a2 Qh5 Ba6 Bb2 c1R Bg2 Bc8 Bf3 Rd1 Bc3 Qc7 d8R Nh6 Kf6 e5 g8B e4 d7 Bd6 f8N e3 Ng6 e2 Ne5 e1B Kg7 Rd5 f6 Nc6 Be6 Ra3 Qf7 Na5 Re8 Qc4 d8N Bd7 Bf5 Be6 Re7 Qf4 Rc7 Qc1 Rc4 Ra4 Nd3 Ra3 Nc6 Rb3 Nf4 Rb2 Nd4 Rd2 Nc2 Rh7+ Kg6 Rh8 Nca3 Rh7 Nge2 Rh8 Rg1 h1B Kg7 h2 Rg5 Bg2 Rh5 h1B B5g4 Bf1 Ng1 Bd3 Bh3 Bg6 Bf5 Bc8 Bd7 Bg2 Be8 Be6 Bd7 Bf1 Rc8 Bc4 Rc5 Ka7 b6+ Ka6 b7 Kb6 b5 Bb3 Rc8 Bc4 Ra8 Kc5 b8Q Bb3 b6 Bc4 Bb4+ Kd4 b7 Ke3 Bc3 Kf2 Ra7 Kf1 Qbf8 Bb8 Qb4 Bd6 b8R Bb3 Nb5 Bc4 Rb6 Bb3 N1a3 Bc4 Rb1 a1R Rc6 Bb3 Rc4 Ba2 Rb2 Rb1 Rb3 Rbb2 Nb1 Rh2 N5a3 Rh4 Qa4 Rh3 Rb6 Rbd2 Qb4 Ng8 Rg5 R8h4 Rh5 Nh6
1Rb1R3/Q2R3b/1b4R1/nrnN1n1r/QN1r3B/1QK3Pk/3BB1nB/2qr4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 a5 b4 e5 f4 h5 b6 c5 b5 a4 d6 h3 b7 a3 b6 c4 f6 Ke6 d7 Kf5 d5 h2 d6 e4 f7 a2 Ne2 Kg4 f5 e3+ Kc3 h4 f6 h3 Qa4 Nh6 Nd4 e2 Nc2 e1N Bd2 Nf5 Nb4 Rh5 Rg1 Nc6 b8R h1R b7 Qc7 d8R h2 d7 Na5 Re8 Bc5 f8B Bb6 d8B Rh4 f7 Ra6 g3 Ng2 Be2+ Kh3 Bc5 Rd4 f8Q Qf4 Bh4 Qf1 Kc2 c3 Qg8 Qf4 Rd1 Qg5 Kc1 c2 Kb2 c1N Nc3 Ncb3 Ncd5 Qe3 Rac1 a1R Rc3 Qg5 Rce3 Rb1+ Kc3 Rg1 R8e6 h1B Rg6 Qf4 Re8 Qf1 Bf8 Nc5 Bfh6 Qe1 Be3 Rf1 Bg1 Rb2 Nd3 Rb5 Bh2 Rg1 N3b4 Qf1 Be3 Qf4 Rd3 Rd1 Bd2 Qg5 Ne7 Qe3 Qgb3 Ra8 Ned5 Qg5 Be1 Qc1+ Nc2 Ra7 Rgg8 Nh6 Ne3 Rd6 Ra8 Nf4 b8Q Re7 Qa7 Re5 Bd2 Rh5 Rb8 Be4 Rg7 Bh7 Rg6 Ng2 Rd5 Re6 Rd7 Re4 Nd5 Rg4 Qb2 Rd4 Qbb3 Qb1 Ncb4 Nf5 Qba2 Qc1+ Q2c2 Qa3+ Qcb3 Qc1+
Q1B1nr1K/Qb3Q2/2bB1N2/rn2NP1B/4Qn2/2R2nN1/R3q1kb/1rB4b w - - 0 1 illegal: No possible last move
nK2N2r/3r1bQ1/2N2r2/2bRqP1N/1bkNB1B1/b3B1B1/6n1/Q1nQr2R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f6 Kf7 Ke2 h5 Kf3 e5 Ke4 a5 g4 c5 d4 a4 f4 h3 b4 h2 d6 Ke6 f5+ Kd7 Kd5 a3 g5 e4 Qe1 a2 f7 h4 g6 c4 b6 c3 b7 c2 g7 e3 b5 h3 b6 e2 Na3 Ra6 Nf3 Ra8 Rg1 h1R Nc4 h2 Bh3 Rh5 Bg4 Ra6 Be3 Nc6 b8B c1B b7 Bb2 Rd1 Be7 f8Q a1B Kc5 Bc1 d5 Nf6 g8B Rh8 Qg7 Qe8 Qf1 Ra7 Kb6 Ba3 Rd2 B1b2 Qa1 Bc3 Rc1 e1N Bf7 Kd8 d7 Na5 Bg3 Bcb4 b8N Nb3 Nd6 Ng2 Rg1 Rc7 Be6 Bb7 Ka7 Nc1 Rd3 Ba6+ Ka8 Rb7 Nc6+ Kc7+ d8N Bc4 Rd4 Kb6 Rgd1 Qg6 Ne8 Kb5 d6 Nd5 d7 Bec5 Bf7 Rc7 Ne6 Nb6+ Kb8 Na8 d8Q Qf6 Nf4 Qe5 Bd5 Rh6 R4d2 Rf6 Be4 Bf7 Qd5 Rf1 Qb3 h1R Rd5 Rh7 Nh5 Rh8 Qa4+ Kc4 Nfd4 Rh1 Rf1 Rg1 Qd1 Rh1 Rf3 Re1 Rf1 Nb6 Rg1 Na8 Rh1 Rd7+
rnnb1B2/Rn2b1B1/1n2Q1N1/1P3QrK/rkq1N3/1b5R/BR3Br1/5Q1R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 d4+ Kb4 f4 e5 d6 c5 d5 a5 d7 a4 f6 h5+ Kg5 e4 g4 a3 b6 e3 b7 h3 f5 e2 d6 e1N Nd2 c4 Ngf3 h2 Nh4 a2 Ng6 h4 Ne4 h3 Be3 c3 Bc4 c2 Bf2 Qc7 d8Q c1N d7 Ned3 f7 Ne5 f6 Ncd3 Qf1 Be7 f8B Rh4 Bg7 Nc5 Qf8 Qc6 d8R Ned7 b3 Nb6 Rd3 Be6 Qc8 Bd5 Qf5 Bd8 Rc3 Ne7 f7 Qa4 f8B Nec8+ Kf4 Rh5 g5 Be7 Kg4 Bg8 Rd1 a1B Rd7 Qb5 Re3 Baf6 Be6 Qc4 Bd5 Nc6 b8R Bf7 Ra7 Nb7 Nf4 Be6 g6 Rg5+ Kh4 Rg2+ Kh5 Bh4 Bh8 Bg5 g7 Bf6 g8Q Bg5 Rg1 h1R Bhg7 h2 Ng6 Bf6 Rh3 Bh4 Qd1 Bf6 Re1 Rhg1 Qe2 h1R Qf1 Rhh2 Qf7 Bh4 Q7f6 Bg8 Q6e6 Rg4 Rb1 Rhg2 Rb2 Nbd6 Rbb7 Nb8 Rd7 Nb7 Rd8 Kb5 b4 Bhf6 Rd7 Bd8 Rh1 Bfe7 Ra3 Bf7 Rah3 Ka4 b5 Ka5 Qd3 Ra1 Qf1 Ra4 Re2 Kb4 Rc7 Nc5 Ra7 Nb7 Rc2 Qe2 Ba2 Qc4 Rd2 Rg5+ Kh6 Ra3 Qd6+ Qc5 Rb2+ Bb3 Qc6 Ra4 Qce6 R5g4 Kh5 Qc4 Rc2 R4g3 Rb2 Rg5+
Nb1n4/BR4r1/r2BPk2/6nB/qn1K1rQn/1Q5R/2b1QrN1/N2B1b1N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 c5 e4 h5 d4 f5 b4 a5 e5 f3 Ke3 a4 b6 c4 d6+ Kf7 b5 c3 d7 f2 g6+ Ke6 g5 h4 d5+ Ke7 g7 c2 b7 h3 b6 f4+ Kd4 f3 g6 h2 d6+ Ke6 Bf4 c1R Be2 f1B Nh3 a3 Nd2 f2 Bh5 a2 Nb3 Bd3 Qe2 f1N Nf2 Bf5 Rb1 Qe8 Na1 Nh6 g8Q+ Nf7 g7 Bc2 d8N+ Kf5 d7 Ng3 Rb3 Rg1 Ne6 Ra6 d8N Bd6 Nc7 Ng5 Na8 Qa4+ Qgc4 Rg2 g8B Rh7 Ne6 Rg7 Rhb1 Bc7 Nh1 Rf2 Be3 Bd7 Nf4 Bb5 Ng2 Bd6 e6 Kf6 Bgf7 Bc7 Bg4 Bd6 Bfh5 Nc6+ Kd5 Be5 b8B Nf5 b7 Nd8 Bea7 Nh4 Bd6 Bg3 b8Q Rf4 Nf2 h1R Qce4 Rg1 Nh1 Rgf1 Re3 Bc4+ Kd4 R1f2 Qb3 Bh2 Rh3 Bg3 Qd2 Bh2 Bd1 Bf1+ Qc4 Bg3 Rb7 Bh2 Nb3 a1N Qe2 R4f3 Qg4 Bf4 Bb4 Bb8 Bd6 Rf4+ Kc5 Bh7 Qcd3 Nc2 Na1 Nb4 Qb3 Be4 Kd4 Bc2+
1BQ1Bb1b/R4P1b/1R1B4/B6N/3rk1rq/2Qnbr2/1QR1nQK1/1n1N3r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 Kd6 Kf2 e5 g4 a5 b4 h5 f6 c5 b6 h3 b7 e4 f7 a4 b5 a3 b6 h2 f5 a2 f6 e3+ Kg2 c4 g5 e2 g6 e1B g7 h4 Nh3 c3 Qf3 c2 Bb5 Qe7 Ba3+ Bb4 Qc3 c1N Nf4 Bg4 Be8 Ra4 Nh5 Na6 b8R Ne2 b7 Bf5 Rc1 h1R Rc2 Rf1 Qb2 Rf3 Nc3 Bh7 Nd1 Nc5 Qc3 Nh6 g8Q Nb3 Qg7 Ng4 Qb2 Ne5 Qg3 Bg7 f8Q Bc5 f7 Rg8 Qf2 Bh6+ Qg7 Nd2 Qc3 Nd3 Bb4 Kc7 d6+ Kb6 d5 Bce3 d7 Nb1 Ba3 Rd4 d6 Qd8 Bc5+ Kc6 Qb2 Qf6 d8Q+ Kd5 d7 Ke4 Bd6 Qe7 Qgg3 Rg4 Qc8 Bf8 d8B Qf6 Ba5 h3+ Kf1 h2 Kg2 Rh4 Qgh3 h1R Qcc3 Qh8 Qhc8 Qf6 Ra8 Rhf4 b8B Qh4 Ra7 Rg4+ Qg3 Na3 Rb1 a1B Qa2 Bg7 Rb6 Nb1 Qaa3 Bb2 Qa2 Ba3 Qaa1 Bh8 Qab2 Rgf4 Qf2 Bc5 Be5 Bf8 Bed6 Rg4+
4q1K1/3P1n1r/1QNb1r2/2Rb4/1bNB1B2/QnrR1b2/BN1nRrR1/2kB4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 a5 d4 h5 g4 c5 f6 a4 g5 e6 f5 a3 f7 h3 d6 a2 g6 h4 g7 c4 f6 h2 d7 c3 d5 h3 d6 c2 b6 Kb3 b7 Rh6 Nc3 Qb6 d8R Ne7 g8B Nd5 Qd4 Nb4 Be3 c1N Na4 Kc2 Be2 N4a6 b4 Qa7 b5 Nb3 b6 Nd2 Nb2 Nc5 Re1 a1R Bd1+ Kc1 Re2 Ra3 Nf3 Rc3 Rg1 h1R Rgg2 h2 d7 Be7 f8Q Nb3 f7 Rf6 Qd6 Rf1 Bd4 h1B Qa3 Bb4 Qh6 Rf2 f8R Qa4 Rfe8 Bf8 Re7 Nc6+ Kd6 Qc4 b8N Ne5 Nc6 Bb7 Rc8 Rb8 Re3 Qe2 Rd3 Ba8 b7 Nf7+ Kc7 Qe4 Ne5 Qe3 Nec4 e5 Qg6 e4 Re5 Bc5 Rce8 Rd8 b8B Qe1 R8e7 e3 R7e6 Bb4 Rc5 e2 Ree5 Re8 Qh6 Re7 Qe3 Nd6 Kd8 Rh7 Be6 Nf7+ Ke8 Bb7 Kf8 Ba8 Kg8 Bb7 N6a5 Bf3 Nc6 Bd5 Rh2 Bhf3 Rg2 Qf1 Qh6 e1B Re2 Qh1 Bf4 Qh5 Qf8 Qe5 Qd8 Qb8 Ra5 Bf8 Qb6 Qe8 Rc5 Rf1 Qab4 Bg3 Qa3 Rf2 Bfe3 Bc7 Bf4 Bcd6 Qa8 Be5 Nd6 Na5 Rb5 Bde4 Ba2 Bd5 Ndc4 Nb3 Qa3 Bc7 Qba7 Ba5 Qb6 Bab4 Rc5 Bd6+
4q1R1/2BPR3/Bn4N1/b1b2R1N/n1RrQ3/1n2Nb1K/2r1bnNQ/k5Br w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 Kg2 a5 d4 e5 g5 e4 b6 c4 b7 c3 f6 a4 b5 e3 f7 a3 f5 a2 b6 e2 f6 e1R g6 c2 g7 Qe7 Qf3 Re6 Kh3 Bd7 Ne2 Ra4 Be3 c1B Bg1 Bd2 Ng3 Ba5 Na3 Qe8 Qe4 Bb5 Rc1 a1N Nc2 Nd7 Ne3 Ne7 g8R Nc8 Rc4 Nc5 b8R Rb4 Rb7 Na4 Re7 Nb3 b7 Ncb6 Rh2 Re5 Rf2 Rh6 Rf5 Rh8 Kg2 h3+ Kh2 h4 Nh5 Bg7 f8N Ba6 Rc8 Be2 Ng6 Bf8 f7 Rc4 Rcc7 Rc2 b8Q Re6 Ngf4 Reh6 Kh1 h2 Kg2 h1B+ Kh3 Bhf3 Nfg2 Rg6 Qc8 Rg4 Qb8 Bd1 Ba6 Bde2 Ree5 Be7 f8N Rf4 Ng6 Bf8 Kh2 h3 Ree7 Rh6 Kg3 h2 Kh3 h1N Ref7 Be7 Rc4+ Kd7 d6 Rh7 Ne5+ Ke6 d7 Bc5 d8B Rh6 Rb7 Rh7 Bc7 Nf2+ Kg3 Rh4 Ra7 Rd7 Rb7 Rh1 d5+ Ke7 d6+ Ke6 Ra7 Ra2 Bd8 Rc2 Rb7 Rc7 Ra7 Rc8 Rh7 Rc6 d7 Rd6 Qc8 Rd5 Ng6+ Kd6 Qb8+ Kc6 Bb7+ Kb5 Re7 Rd4 Qbf4 Na8 Bc7 N8b6 Rc3 Kb4 Ba6 Ka3 Rc4 Ka2 Qh4 Rc1 Qh2 Rc2 Kh4 Ka1 Kg3 Nd3 Kh3 Nf2+
1Kn1qBr1/1q2NBRb/1RQ2b2/6n1/B3QnkB/4r1N1/2NQNn1P/1r2r3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 g5 Ke4 a5 Ke5 f5 b4 c5 d4 c4 e4 f3 h6 f2 d6 c3 h7 c2 d5 a4 b6 g4 b7 g3 b5 g2 b6 a3 Qe1 a2 Bc4 f1R Nc3 f4 Ba3 c1R Nce2 f3 Ng3 f2 N1e2 g1N Rb1 Nh3 Rg1 Na6 b8Q a1N b7 Ng5 Qc7+ Ke8 b8N Nh6 d7+ Kf7 d6+ Kg6 Rb6 Nc5 Nc6 Rg8 Nb4 Nb7 Nc2 Rb1 Qc6 Nb3 h8Q Rb8 Qd2 Nd4 Rg2 Qc7 d8N Nde6 Bb5 Rh1 Ba4 f1Q Rg1 Qcf7 d7 Qe1 Kd5 Ng4 e5 Qe8 Qh4 Bg7 Bf8 Nf2 Qe4+ Kh6 Rg2 Nd6 Rg1 Nf4+ Kc5 Qf1 e6 Ba6 e7 Bd3 Rg2 Qe1 Rg1 Qf7 e8B Qb3 Bf7 Rb7 Ne6 Nc8 d8B Re7 Nc7+ Re6 Nd5 Qb2 Qeb4 Bh7 Ne7 Qb3 Kb5 Qf3 Ka6 Qd5 Bg6 Re3 Kb7 Qf7 Qbe4 Qe8 Qa5 Qb4 Kb8 Qb5 Rg2 Rhe1 Rg1 Nf3 Bh5+ Kg5 Bf7 Bf6 Qd2 Qb2 Nh5+ Kh4 Rg7 Ng5 Nhg3 Kg4 Rb4 Bc3 Ng6 Nf3 Bh4 Ng5 Ne7 Bf6 Rb3 Qd4 Rb7 Qdd7 Rb6 Qb7+
2QR2n1/Q1b1RNr1/r2qr1kN/2bBQ3/2n4q/5bB1/1r1NK1P1/1R2R1bN w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 f4 e5 b4 a5 b6 c5 f6 h5 d6 e4 d7 e3 b5 a4 f5 h3 d5 h2 b7 a3 b6 c4 d6 c3 Ne2 h4 Qc2 h3 Nd2 a2 Rb1 a1R Ng3 R8a6 Ke2 Nc6 b8Q Na5 b7 Rh6 Qa7 Ra2 b8Q Bb7 Qb2 c2 Qc8 Bd5 Qe5 Be4 Rg1 Nc4 Nh1 Qb6 d8R+ Qc7 d7 Qd6 Ba3 c1B Bc5 Qe7 Bd6 Rb2 Re8 Qd8 Bc7 Bc5 Re7+ Kf8 f7 Rhe6 Qd5 Kg7 f8N+ Kf6 Bg3 Qb6 d8R Qd6 Nd7+ Kg5 f6+ Kg6 Nf2 h1R f7 h2 f8N+ Kh6 Nh7 Kg6 Ke1 e2 Ng5 Kh6 Nf7+ Kg6 Nb3 B1e3 Nf6 Bed4 N6g4 Be3 Nd2 Bf4 Qd4 Be3 Nh3 Bf4 Kf2 e1B+ Ke2 Bf2 Qe5 B2e3 Nhf2 Bed4 Kd1 Bde3 Be2 Bed4 Re1 Rf1 Qaa8 h1Q Qa7 Qh4 Nh1 Bg1 Ngh6 Rf3 Bf1 Rfb3 Bd3 Rb7 Ke2 Rc2 Qd5 Ne3 Rc7 Qf8 Nd6 Rcb2 Bc4 Qfe7 Qd4 Qf8 Bd5 Nc4 Rc6 Rd7 Rc7 Rg7 Ndf7 Bfd6 Rcd7 Bc7 Qe5 Qd6 Re7 Bf3+
rN3Rr1/1R1brbNb/B1R3q1/qn4N1/2RB2k1/3rQ3/PQ1N1n2/3KbB2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 g4 b5 f4 e5 g6 c5 g7 h5 g5 b3 d6 b4 f6 Ke6 f7 Kf5 g6 h4 d7 b2 d5 c4 d6 e4 Qd2 h3 Nf3 h2 Qe3 b3 Ng5 c3 Nd2 b1B Kd1 Kg4 f5 b2 f6 Bd3 Rb1 Nh6 g8B Na6 g7 Qa5 d8Q Bd7 Qdb6 Nc7 Qb8 Be7 f8N Nb5 Bc4 Rg8 f7 Bd8 Nfe6 c2+ Ke1 Bf6 f8R Bc3 Rc8 Bb4 Rc6 Bc3 Ra1 b1B Bb2 Bb4 Bd4 c1R+ Kf2 Rc3 Ke1 Bbc2 Rb1 Bb3 Rb2 Bb1 Rc2 Rd3 Kd1 Kf5 Rg1 h1Q Rg2 Ng4 Qb7 Bc8 d7 Qh6 d8N Bd7 Rh2 Qg6 Rh7 Nd6 Ba6 Nb5 Rc4 Bc3 Nc6 Nf2+ Ke1 Kg4 Nb8 Bb4 Rc6 Bd5 R2c4 Bc2 Nc7 Bf7 Nce6 Rf8 g8R Bc3 Rgh8 Rg8 Ke2 Bb4 Ng7 Bb1 Nb3 Be1 Nd2 Nh1 Qf2 e3 Kd1 e2+ Kc1 Nc7 Qb2 Nb5 Qe3 Nf2 Rb6 Rb3 Rb7 Be4 Rh6 Rd3 Kc2 Qh5 Kc1 Bh7 Rhc6 Qg6 Kc2 Re8 Kc1 Re7 Rd8 Re8 Kc2 Rg8 Rf8 Qe6 Qe5 Qg6 Nb1 Bd2 Qe8 e1R Qe7 Re5 Qe6+ Rf5 Qe3 Be1 Nd2 Re5 Kc1 Re7 Kc2 Ne4 Kd1 Nf2+
1rK1nr1Q/4N1BR/2R2n1N/n1b3B1/Bbk4q/1bP2QQN/2qb1Nn1/4B3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 g5 Kc4 d5+ Kc5 a5 f4 d3 b4 d2 h4 d4 f6 Ke6 c3 a4 f5+ Ke5 b6 d3 b5 g4 h6 a3 b7 a2 h5 g3 h7 g2 f7 Nf6 h6 Qa5 Nh3 g1N Qf3 d1Q Bg5 Na6+ Kc6 d2 b8B+ Nc7 b6 Be6 Kb7 Qaa4 Bb5 Bb3 Kc8 Qc2 b7 d1N Nd2 Ne2 Ne4 Nb2 Nef2 Qh4 Ba4 Nf4 Raf1 Rg8 h8N a1B h7 Ng2 Re1+ Kd6 Re6+ Kc5 Ng6 Kc4 h8N Nce8 Qg3 Nd3 Rc6+ Nc5 Rh2 e5 Ne7 e4 Qf3 Bg7 f8Q e3 Nf7 e2 Nh6 e1B Qg3 Bd2 Qf7+ Nd5 f6 Bb2 Qh5 Rh8 f7 Ndf6 f8B Ba3 Qhf3 Bb4 Rh1 Rg8 Rh2 Bh8 Bg7 Rf8 Rh1 Ra6 Bbf4 Rb6 b8Q Rb5 Ra6 Nb7 Qe5 Bc1 Bd2 Na5 Be1 Bd2 Rc6+ Rc5 Nhf5 Ng8 B7f6 Qd4 Ng1 Bg7 Rh7 Qh4 Ngh3 Bh8 Bh6 Bg7 Bfg5 Bh8 Qee3 Bd4 Qee5 B4e3 Qh8 Ngf6 Bg7 Bd4 Rc7 Rc6 Nh6 Bdc5 Nfg4 Rb6 Rc6 Rb5 Ngf2 Rb8+
1KRb4/Bnr1N1B1/R3Q3/qRB2qqb/2B4P/2Q2rnk/nN1n1q2/N3N3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 Kh4 d4 a5 f4 g5 b4 c5 f6 c4 f7 a4 f5 c3 b6 c2 d6 a3 f6 g3 d7 e6 b5 g2 d5 a2 b7 g4 b6 g3 d6 Bh6 f8Q Rh7 f7 Qc7 d8R Qc4 d7 Ra3 Kd6 e5 Qe1 e4 Be3 c1Q Qe7+ Bg5 f8B Nc6 Kc7 Qb5 b8B Nf6 b7 Na5+ Bc4 Qf5 Nc3 Nh5 Bc5 e3 Nf3+ Kh3 Bg7 g1Q Bba7 g2 b8N e2 Nd1 Qf2 Qe6 g1N Nc6 Ng3 Ne7 Nb7 Qc3 e1Q Kb8 N1e2 Nb2 Bf6 Re8 Qg5 d8N Nc1 Ndc6 Bd7 Rf8 Be8 Nb4 Bh5 Rc8 Qed2 Rb1 a1N Ne1 Na2 Nbc2 Nb3 Na1 Qd8 Rf1 Nd2 Rh1 Qa5 Rg1 Kg4 h4 Kh3 Rf1 Qg2 Rf3 Qf2 Rd3 Rb3 Rd6 Ra3 Ra6 Rb3 Nd5 Bd8 Ne7 Ra3 Qcf6 Rf3 Qc3 Nc1 Nbd3 Na2 Rb5 Rh6 Nb2 Rg6 Qee5 Rc6 Qe6 Rc7
1b1nN2r/2B1kqR1/1bq2R1Q/Nb2P2r/r3Q2R/r3RBb1/3K2Q1/3NnN2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 f5 d4 c5 e4 g5 b6 g4 d6 a4 b5 g3 d7+ Kf7 d5 f3 d6 a3 h6 g2 h7 f4 b7 f2+ Kd2 f3 b6 a2 h5 c4 h6 Ra6 Rh3 Ne7 Be2 f1R Qe1 f2 Bf3 Ra4 Ne2 g1R Ng3 Nf5 Nc3 Nh4 Nd1 Nc6 b8Q Bb7 Qa8 Qc8 d8N+ Ke8 d7+ Ke7 Ne6 Qd8 Nc7 Qc8 d8N Ba6 b7 Bb5 b8R Rh1 Nb7 Nd8 Na5 Ng2 Ne8 Qc6 Rb6 Rfg1 e5 f1Q Qe4 Ne1 Bb2 Ra3 Bd4 Ra4 Rb1 a1B Ra6 Ra3 Bb6 Bd4 Bc7 Bb6 Rh4 Rh3 Rb3 Rgh1 Rg4 Rh5 Re3 R1h4 Rg6 Rg4 Ra7 Rf4 Rf6 c3+ Kc1 c2 Kd2 Qh3 Nf1 Qhe6 Rb7 Qf7 Ra7 Rg8 h8Q Rfg4 Qg7 Rh8 h7 Rf4 Qg2 Rg4 Qg6 Rc4 Qh6 c1B+ Ke2 Bd2 Rb7 Bc3 Ra7 Bcd4 Kd2 Rca4 Qb7 Qd6 Qe4 Qc6 Re2 Bf2 Re3 Bg3 Rb7 Kd7 Ra7 Bd6 Rb7 Rg8 h8R Ke7 Rh7 Rh8 Rg7 Ba7 Rb6 Bb8 Rf4 Bc5 Rh4 Qd7+ Rd6 Qc6 Rf6 Bb6
1Nbk4/4rr1Q/1q4NR/R1P1nB2/1R3nKB/Q2rB3/bbR5/1B2qrNb w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 e5 Kf3 h5 g4 a5 b4 d5 c4 a4 b6 a3 b7 h4 c5 h3 f6 a2 f7+ Kd7 b5 d3 g6 d2 g5 d4 g7 h2 g6 d3 b6 e4+ Kg4 e3 f4 e2 f5 e1R f6 Qc7 Bh3 Rh5 Na3 Rhe5 Nc4 Re6 Ne5+ Kd8 Qa4 d1R Be3 d2 Qa3 Be7 f8B Bd6 f7 Nc6 b8R Ra7 b7 Nge7 g8B Nd5 g7 Nf4 Ng6 Be7 Bh7 Bf6 g8Q Bb2 Qh8 Qb6 Be7+ Kc7 f8R Rf1 Bh4 Re7+ Rf5 Kd7 Rh5 Rf7 Rc1 a1Q Rh6 Re7 Rc2 Ne5+ Kg5+ Kc7 Bf5 Qc1 Qg7 Kd8 Ra8 Rf7 b8N Rae7 Ra5 Qa1 Ne2 Qb1 Rg1 h1B Rg4 Rde1 Ng1 d1B Nh3 Bdf3 Ng1 Rd1 Qh8+ Re8 Qg7 Bd5 Qh8 Ba2 Qg7 Ng2 Rb4 Ree7 Kh5 Rd3 Kg5 Nc4 Kg4 Qc1 Bg8 Qe1 Qh7 Rf6 Bd5 Rff7 Be4 Nf4 Rh2 Rd6 Bb1 Rd3 Rc2 Ne5+
3R3Q/rn4n1/NbK4R/1PB1R3/n2n2qB/Qb3Qrk/b1N2qR1/1BB4b w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 h5 d4 a4 b4 h3 d6 h4 Kd5 c4 b6 a3 b7 h2 f6 h3 b5 c3 f5 a2 g5 e4 f7 c2 g6 e3 g7 e2 f6 e1Q Nd2 Ne7+ Kc5 Ke6 g8R Kf5 d7 Na6+ Kd6 Nc5 b8Q Qf2 d5 Na4 Ngf3 Ra7 Rg2 Rg8 Nb3 Rg3 Bd3+ Kg4 Nc5 Nf5+ Kc6 Ng7 Na6 Bc5 f8B Bb6 f7 Qg5 d8B Be6 d6 Bb3 d7 Qf4 Re1 h1B Bh4 h2 d8R Kh3 Re5 Qg4 Rb1 a1N Nd4 Ba2 Qf3 Nb3 Bd6 Nbc5 f8Q Nb7 Bc5 Bb3 Qh8 Ba2 Qd6 Bb3 Bh6 c1N Nc2 Ne2 Bc1 Ba2 Rb4 Bb3 Rf4 Ba2 Rf6 Bb3 Rh6 Ba2 Rg1 Bg2 Bf5 h1B Qd3 Bf1 Qa3 Bb3 Rg2 Nd4+ Kd7 Nde6 Kc6 Bfc4 Nd4 Ba2 Bb1 Bcb3 Nc2 Nd4+
1b4r1/nbb4N/2Q3PK/2Rbn2R/q3NN1r/4R3/N3B3/BQRqkrrB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 b4 Ke5 e4 Kd4 g4 f5 b6 h5 b7 c5 d6 a5 e5 a4 b5 a3 g6 h4 g7 h3 g5 c4 b6 c3 e6 a2 g6 h2 d7 c2 e7 Nh6 g8N Nf7 e8B Bg7 Nf6 Nd6 Be2 Nc6 b8N Nb5 b7 Ra4 Na6 Rf8 b8Q Ne7 Qb6+ Ke5 Nc3 Na7 Nh3 Nec6 Nh7 Bb7 Ne4 Rg8 d4+ Kd5 Qg1 Be5 Bb2 Bb8 Rc1 a1Q Qf1 Qa2 Ba1 Rb4 Qg2 Qa4 Rhe1 Rc4 Qb1 h1B Nb4+ Ke6 Na2 Kd5 Kf2 f3 Ke3 Ne5 Kf4 f2 Qf3 Bg2 Rh1 f1R Rh2 Qe7 d8R+ Qd6 Kg5 f4 Rc8 Rg1 Kh6 Bc7 Qc3 f3 Bb5 f2 Bc6+ Ke6 d5+ Kf5 Re8 f1R Nf4 Bf3 Re6 Kg4 Rh5 Qd7 d6 Qd8 Rd1 c1B d7 Ba3 Re7 Bad6 Rc1 Rb4 Bd5 Bb8 Qc6 Bdc7 Nd6 Kg3 Re6 Qf6 d8R Kf2 Rc8 Qd8 Re8 Bg2 Bdf3 Qd7 Re6 Qd1 Ne4+ Ke1 Ree8 Bh3 Bh1 Be6 Rcd8 Qd4 Rd5 Qc4 Rc5 Bd5 Rf8 Qb5 Rff5 Rc4 Rh3 Rd4 Rfh5 Qa4 Ra3 Rd3 Rb3 Rh3 Re3 Rh4
1bnQnnBN/2n2PBQ/4N2K/2N1r1QR/2Q1Rqq1/6r1/q3R3/2N2qkb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kg5 Ke4 b4 h5 g4 c5 d4 e5+ f6 a5 f4 a4 f5 h3 d6 h4 d7 h2 b6 h3 b5 c4 b7 c3 d5 c2 b6 a3 d6 a2 Bb2 Ke3 Qd3+ Kf2 Qc4 c1Q+ Nd2 e4 Ne2 e3 Nb3 Ra5 Nc5 Na6 b8Q Ne7 b7 Nc7 f7 Rg8+ Bg7 Qd1 Rb1 a1Q f6 Qa2 Nc1 e2 Rb4 e1N Kh6 Nf3 g5 Nh4 g6 Qg4 Qa7 Rb5 b8R Bb7 Bg2 Nc8 Bd5 Be7 Ra8 Qf8 d8Q Bc6 d7 Bd6 Re1 h1N Re2+ Kg1 Rb8 Ra5 R8b5 h2 Be6 Ng3 Bd5 Qe8 f8N h1Q Nfe6 Qf7 Qb7 Nh5 Qa7 Na8 Qac7 Bh2 Q7f4 Qhg2 Qg5 Nc7 Qe5 Rf8 Nb7 Na7 Nf4 Q2f3 Bh8 Qf2 g7 Qb1 g8Q Qe1 Qa8 Re8 d8N Ng6 Rb3 Na6 Bg7 Qa2 Rbe3 Nf8 Qh7 Qf1 Ng6 Ra3 Nh8 Qc7 Bg8 Bh1 f7 Nf6 Re4 Bf4+ Qg5 Rg3 Ra5 Be5 Qd2 Re6 Qf4 Ne8+ Qf6 Bd6 Rh5 Be5 Nc5 Qb8 Qad5 Nc8 Qd2 Qd6 Qg5 Qdd2 Qf5 Bb8 Qh7 Re5 Nde6 Nac7 Qd8 Qdf4
RnB1N3/2r5/5nN1/1B2qbr1/2QQQBk1/1NnbQq2/r2bP1pK/2R2B2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg2 Ke6 c4 Kf5 b4 a5 h4 d5 b6 g5 b5 d3 b7 a4 h6 a3 e6 f6 e7 a2 e8B g4 c5 d2 c6 g3 h7 d4 b6 d3 c7 Bg7 h5 Qd7 h6 Qf7 Na3 Na6 b8Q Kg4 b7 f5 Nc4 f4 Qa4 d1N Bb5 d2 Nd6 Bf5 c8B Nf6 Qa7 Nc3 b8Q d1B Qbc7 Bc2 Nf3 Bd3 Nd4 Rg8 h8Q Nb8 h7 Bh6 Nb3 Rg5 Qcc4 Qh5 Qac5 Ra7 Qe3 Rc7 Qd8 Qe8 h8N Qe4+ Kg1 f3 Ne8 Qd4 Ng6 f2+ Kg2 Qf4 Bd2 Qd4 Rc1 a1R Qa8 Qf4 Qdd4 Ra2 Qae4 Bf8 Rh7 Bb4 Rd7 Ba5 Rd6 Bb4 Ra6 Ba5 Ra8 Bb4 Kh1 Ba5 Bg2 f1Q+ Qg1 Qf3 Qge3 Bb4 Kg1 Ba5 Bf1 g2 Be1 Bc2 Bg3 Bd3 Kh2 Bb4 Qed5 Q4e4 Bf4 Qe5 Qb7 Ncd5 Qbc6 Bd2 Qe6 Nc3 Qe7 Qc5 Q7e4 Qe5
1qn1b1Br/r1R1qBR1/1N1r1q2/B1Q1bk2/Q1Q5/8/NRbp2P1/QK4nB w - - 0 1 illegal: Other
r2B4/1Br5/1BR1Nn2/2N1Q2Q/1qr1B3/1QqP2nq/b1p2b2/kN1Qb1KR w - - 0 1 illegal: No possible last move, all moves rejected
3RKnB1/1Q5B/1RQqn3/1R2r2b/2bN3q/2kp2N1/3RrP1b/N2qrNB1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 h4 g5 c4 d5 b4 g4 b6 a4 b7 a3 f6 g3 f7 d3 h6 d4 b5 d2 h7 g2 b6 a2 h5 Nf6 h6 Ne8 Qc2 d1B Nd2 Ra6 Bd3 Be2 Rb1 a1Q Nf1 Ra2 Rh5+ Bf5 Bf4+ Kf6 Bh2 Beg4 Ne2 g1Q Neg3 Nc6 b8Q Qc3 b7 Bc8 Rb6 Rg8 h8R Qa1 h7 Bh6 f8N e5 Ne6 Qh1 Bg1 e4 Qc7 e3 b8N e2 Na6 e1R Nb4 Rf8 Qb7 Ng7 Rg5 Bd7 Kd6 Qh4 c5 Nb8 c6 Qd1 c7 Bh5 c8B Re8 Qcc6 Rae2 Rgb5 Re5 Bg6 Bf4 Nc2 d3 Na1 R1e2 Nd4 Ne6 Bf5 Re7 Re8 Re1 h8R R1e2 Nh1 Bh2 Bh7 Re1 Nhg3 R1e2 Qc3 Bc6+ Bd7 Bd5 Qcc6 Bc4 Rhg8 Nf8 Rh8 Na6 Bg8 Nc5 Bh7 Qa8 Be6 Qa3 Beg8 Re1 Rd8 R5e2 Rb2 R7e5 Rd2 Qa6 Kc7+ Nce6+ Kc8 Qa3 Rd5 Qe7 Rdb5 Qd6 Bf7 Ng6 Rd8 Ngf8 Bfg8 Rd5 Ndc2 Ke5 Nce3 Kd4 Nec2+ Kc3 Nd4 Qde7 Rbb2 Nf4 R2b5 Qb4 Kc7 Rde5 Kc8 Qc5 Kc7 N4e6+ Kc8 Ng6 Kd7 Qd6+ Ke8 Ngf8+
2Q4K/N1bb2q1/R2r1nQ1/1r3r2/BBqNB3/P3N2p/k3b2B/3nQNRn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 f4 h5 g4 b3 d4+ Kb4 f6 c5 d6 h4 g6 h3 g5 b2 f7 c4 g7 e6 d7 c3 d5 c2 g6 Ra3 d6 Nh6 g8Q Rb3 f5 Ka4 g7 b4 f6 Rh7 Bg2 Qc7 d8N Rd3 Be4 b3 Ne2 Nf5 Ng3 Bd7 Nd2 Ka3 Rg1 Ne3 Nc6 Rh5+ Nf5 Qa7 Qe2 Nd1 Nf1 Rg5 Be3 c1Q Bf4 b1R Nd4 b2 Bh2 Qc4 Qe1 Be7 f8B Bd8 f7 Bc7 Kf6 e5 N5e3 Rf5+ Kg6 Qb7 Kh7 Rd2 Bc2 e4 Kh8 Rd3 Ba4 Qa7 Nd5 e3 Be7 e2 f8Q Qb7 Nde3 Qa7 Qc8 Rd2 Qg3 e1N Qh7 Qb7 g8B Nd3 Qe1 N3f2 Bd5 Nh1 Be4 Qa7 Nb3 Rdd5 Nd4 Rb5 Qhg8 Rc1 Qg2 b1B Qg6 Bd3 Bf8 Be2 Be7 Be6 d7+ Kb2 d8N Nd7 Bb4 Nf6 N8c6 Bd7 a3 Qb7 Rb1+ Ka2 Na7 Rc3 Rb3 Rd3 Rc3 Qf7 Rc6 Qc4 Ra6 Rd2 Bd3 Qg2 Be4 Qg3 Ne6 Rd6 Nd4 Qe5 Bb7 Qe7 Be4 Qg7+
1N4n1/B3rQqb/1b1K1Rn1/1qQb3k/1RN2Rp1/4rBQ1/nPRN4/3Q3q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 g5 Ke4 c5 Ke5 f5 d4 Kf7 h4 f3 e4 g4 b6 a4 b7 c4 h6 Kg6 h5+ Kf7 h7 c3 h6 Kg6 d6 f4 d5 c2 d7 f2 d6 a3 Be3 c1Q Bg2 f1N Nf3 a2 Ba7 Ng3 Rf1 Ne7 Nfd2 f3 Nc4 f2 Nbd2 Qb6 d8Q Ne2 d7 Nbc6+ Kd6 Rg8 h8Q Kh5 b8N Qc3 h7 Qb5 e5 Nb4 e6 Qg7 Rc1 a1Q Qc7 Na2 d8R Nf4 Rc2 Bb7 Qc5+ Bd5 Bf3 Nfg6 Rc8 Qc1 Rc6 Qb1 Ra6 Qa1 Ra4 Qc1 Rb4 Qa1 Re1 f1B Re4 Bd3 Rf4 Qc1 Na6 Re8 Nb8 Qh6 Qhd4 Rg7 h8R Ng8+ e7 Rh7 Q1g1 Qg7 Qg3 Qh1 Qdg1 Qc3 Qa1 Bh6 Qd1 Qg7 Rf6 Be3 Rf4 Nh6 Rhf8 Ng8 Qc8 Bb6 R8f6 Rf8 e8Q Bf5 Qec6 Re8 Q8b7 Re3 Qbd7 Qh8 Qe6 Re7 Qc5 Qg7 Qd7 Ne5 Qe6 Bh7 Qf7+ Ng6
2Qnq3/RB1N2nN/2R3bB/K5QR/3P1N2/3pq2B/kqN1nr2/b2Br1b1 w - - 0 1 illegal: No proof kernel
1B1Nn3/2QbQr2/1nb5/3q1Rp1/qB2qQ1K/3B1NB1/2rR1NkP/2b1Q1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 b4 Kd6 e4 Ke5 h6 c5 h7 f5 d6 a5 d7 f3 Kg3 f2 d3 c4 b6 c3 b7 a4 b5 c2 b6 g6 Ra2 a3 Nc3 Nf6 Kh4 f4 Qe1 f3 Nd1 Ra7 Bd2 c1N Bb4 Kf4 d4 Ne2 e5 Bh6 e6 Ne8+ e7 Rf8 h8Q Rf7 Rc2 a2 d5 a1Q d6 Ra2 Rd2 Rc2 Qf6+ Ke4 Qg5 Qa4 Qg3 Bg7 Qg5 Bb2 Qf6 Bc1 Qg5 Na6 b8B Nac7 b7 Nd5 Qf6 Qda5 d8Q Nb6 Qc7 Qd5 Qg5 Bf5 d7 Bg4 d8N Bd7 Qc8 Bc6 Bg3 Bd7 b8B Bc6 Bh3 f1Q Qc7 f2 Nf3 Qg2 Rf1 Qh1 Bc8 Qg2 Ba6 Qh1 Rg1 f1B Bb5 Bg2 Rf1 Bh3 Qf6 Bhd7 Nf2+ Ke3 Bd3 Qg2 Qd1 Ng1 Qf5 Nf6 e8Q+ Qe4+ Qg4 Qh1 Qe7 Ne8 Ne5 Qd5 Qc4 Qhf3 Qe1+ Qe2 Neg4+ Kf3 Ne5+ Kg2 Nf3 Qe3 Q4f4 Qee4 Ng4+ Qe2 Qff6 Ra2 Ng5 Rc2 Qfd6 Nc8 Rf5 Nb6 Nf2 Qe3 Nf3 Qee4+ Qf4 g5+
2nqB2B/2Rqq1Qb/r2Q1Q1K/1QP5/2nb1R2/p1Nn3B/1R4N1/3brB1k w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 a5 b4 h5 g4 e5 c4 d5 c5 a4 b6 h4 b7 d3 Ke3 h3 g6+ Kf6 g5+ Ke7 b5 e4 f6+ Ke6 g7 Kf5 b6 h2 f7 a3 g6 d2 Ne2 Kg4 f5 Be7 f8Q Na6 b8Q Nb4 f6 Rh7 f7 Be6 b7 Bf5 Nbc3 Bf6 Bb2 Ne7 g8B Nd3 g7 Nc8 Nf4+ Kg3 Ng2+ Ne5 Qb1 d1B Qbd6 Ra6 b8R Rh8 Ra2 Bh7 Rb4 Qd7 Rg1 h1Q Rb7 Kh2 Kf4 e3 Rc7 d4 Qfe7 d3 f8Q e2 Bf7 e1N g8B d2 Be8 Ng4 Qeg7 Ne3 Be6 Bd4 Bh3 Nc4 Qff6 Nd3+ Kg5+ Nf4 Qc6 Nd3 Kh6 Rf8 Ba1 Rf7 Qd5 Re7 Qb5 Re1 Rb2 Qd8 Be2 Qe7 Rf1 Qg1 Qdd7 Kh1 Rf4 Qge3 Qde6 Qd8 Qd6 Qee7 Bf1 Bc2 Rf3 d1Q Rf5 Qd2+ Rf4 Bd1 Rc2 Qc1 Qff7 Qed7 Na2 Nb4 Qg5 Bf2 Bh8 Qe3 Qff6 Nd3 Nc3 Bg1 Qgg7 Qee7 Rb2 Bd4
1n1Q2rR/1Q1NB1k1/BR1r3p/N2q1q2/bbR2bN1/4Q3/1n1P1RqK/1rQ5 w - - 0 1 illegal: No possible last move
bK1Bn2N/1B1b4/1rNNBBqp/1RQq3P/2Q5/6r1/q1Nkbn1Q/n1R5 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kb3 Kf7 Ka4 Kg6 Ka5 Kf5 d4 Ke4 b4 g5 h4 c5+ b6 a6 h5 c4 b5 c3 d6 g4 f5 g3 d5 g2 d7 h6 f6 c2 d6 Ne7 f7 Rh7 f8Q Ng6 Na3 Ne5 Bb2 Ke3 Rc1 Re7 Nh3 g1N Nf4 Rh7 Qd5 Re7 Bh3 f1B Be6 f2 Ng6 Rf7 Qc4 Rg7 Nh8 Nef3 Bf6 Kd2 e4 Ne1 e5 Be2 Rh4 Qe8 d8N f1B b7 Nd7 b8Q Rg3 b6 Bg2 b7 Nh3 Ndf7 Nf2 Rg4 Bh1 Rg5 Qd8+ Qbc7 Rb8 Qe7 Qg8 Q7c5 Qg6 Qf8 Nb6 d7 Nd5 d8B Nc7 Kb6 a5 Ka7 a4 Nd6 Ne8 Qg7 Bc6 Qc7 B8d7 Rf5 Rc8 b8N Ba8 Nc6 Rb8 Rf3 Rb6 Rb3 Bg4 Rb5 Be2 Rcb1 c1Q Nc2 Qd1 Rc1 Ra6+ Kb8 a3 Bd5 a2 e6 a1Q e7 Qa2 Be6 Ng7 e8B Rb6+ Qb7 Qb3 B8f7 Qa2 Bd5 Ne8 Bfe6 Nf3 Be4 Nd4 Bf3 Nb3 Bh1 Ra6 Qc7 Na1 N6d4 Qg5 Bb7 Qg6 Nc6 Rb6 Nf5 Rg4 Qh2 Rg3 Nd6 Qh1 Rb2 Qf3 Rb5 Qd5
1BR1q1Nn/1N1NB1qQ/2N1QP1q/B1rr1K2/b1Qp3r/k2n1B2/4n2b/5R2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 f4 Kd6 b4 e5 c4 g5 h6 a4 b6 g4 h7 a3 c5+ Kc6 f6 Kb5 f5 a2 f7 g3 h5 g2 b7 Ne7 h6 Ra6 c6 Ra4 f6 Na6 b8B Qb6 c7 Bd7 c8N Bh3 Ne2 g1N Qb3 Bd7 Bd2 Ra5 Qc4+ Ka4 Bg2 Rg8 h8Q Qe6 h7 Qh3+ Bf3 Ng6 Ne7 Qh6 Nbc3+ Ka3 Ne4 Rc5 Rf1 a1Q Nd6 Ba4 b5 Qb2 Qg7 Nh8 b6 Qb4 Qg2 Rg4 b7 Rh4 Qg4 Qa5 Qc8 Qc7 Ng8 Be7 f8B Qd7 Nf5 Bd6 Ba5 Qdg7 Be7 Bc7 Qe6 Bd6 Nc1 Ne2 Nb3 Bc7 Nd6 e4+ Kc2 e3 Kd3 Ng1 Rh3 e2 Rh2 e1Q Rc2 Qe5 Rcc1 Ne2 Rc3 Nf7 h8Q Qeh5 Qh7 Nh8 Nf7 Bf4 Ne5 Bh2 Nd7 Qe8 Bbd6 Rf4 b8N Re4 Nc6 Rh4 Bf4 Nb4+ Kd2 d3 Ke3 d4+ Ke4 d2 Rc2 Rhh5 Bb8 d1R Rc1 Rcd5 Nbc5 Nd3 Nb7+ Rc5 Rc2 Rd5 Rc1 Be5 Kf5 Re1 Rf2 Rh1 Rff1 Rh4 Qc2 Rh2 Nb4 Rb5 Qcc6 Rh4 Qa6 Ndf4 Rc8 Nd3 Nc6+ Rbc5 Qc4 Bh2+
1BBr2k1/2n5/Rq3p2/2NqP2n/1B2q1NN/1b3QQr/1QbRrK2/bB5N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 h5 b4 a5 g4 c5 d4 a4 g6 f3 g5 f6 d6 c4 d5 h4 b6 h3 b5 h2 e5 c3 b7 c2 g7 Kf7 d7 a3 d6 a2 g6+ Ke6 b6 Qc7 d8N+ Kd7 Bh3+ Ke8 d7+ Ke7 Ne2 Nh6 g8Q Nf5 g7 Nd4 Ne6 Na6 b8B Nf5 d8N Ng3 b7 Qb6 Nf7 Nh5 Nh6 Nc7 Nc5 Be6 Nd2 Bb3 Ba3 c1Q Ng4 Qb1 Ng3 Qe4+ Kf2 Qd5 Re1 h1Q Bb4 Rh7 Qe2 Qe4 Rad1 a1R Qf1 Rc1 Re2 Rc3 Ra1 Re3 Ra6 Bc2 Qb3 Rh8 Qa3 Kf7 g8B+ Kg7 Bd5 Bb3 Bc6 Kg8 Qg2 Qd1 Nh1 Bd6 Qg3 Bc2 Nc4 Qdd5 Rd2 Be7 Nd6 Re2+ Kg1 Bf8 Nf5 f2+ Kf1 Bh6 Qaf3 Be3 Nh4 Bd4 Bb5 Bb3 Bd3 Ba1 Bb1 Bc2 Kg2 f1B+ Kg1 Re3 Kf2 Bc4 Ba7 Rc8 b8Q B4b3 Qb7 Re1 Bb8 Rd8 Nh2+ Ng7 Bc8 Re3 Ng4 Rh7 Ng6 Rh3 Nh4 Re1 Qc3 Nh5 Qb2 Qde6 Qd5 Qf7 Qdd3 Qfd5 Qdf3 Re2+
KR2R1Bk/1Q1R3q/3q1p1B/P1qb1BN1/2nr2R1/2r5/Nr5n/b1NQ2Bn w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Qb3 b5 Kf2 c5 Ke3 g5 Ke4 c4 d4 f6 a4 Kf7 h4 Kg7 e6 c3 a5 c2 d6 g4 Kd5 g3 e4 g2 e7 Nh6 e8B Be7 e5 Nf5 d7 Nc6 e6 Bb7 h6+ Kh7 h5 Ba6 Bc4 Qb8 d8B Qc8 Ne2 g1N Bd7 Qb8 Ra4 Bc5 e7 Nd6 Nbc3 Qc7 e8R Rc8 Na2 Nh3 Rd1 Bb7 Bg4 Qe7 Bb6 Nf2 Be3 c1Q Qb1+ Qc2 Nec1 Qf8 Rd2 Kg8 h7+ Kg7 Rd1 b3 Bh3 Rg8 h8N b2 Nf7 b4 Bd2 Rc7 Rb8 b3 h6+ Kh7 Bf4 Rg2 Be3 Kg8 h7+ Kg7 h8R Rg4 Rd2 Nh1 Rg8+ Kh7 Bh6 Bb4 Rd3 Bc3 Rd1 Qe7 Rge8 Qf8 Ng5+ Kh8 Kc5 Ba8 Ba7 Ne5+ Kb6 Nf3 Bg8 Nh2 d5 Qd2 Qe4 b1Q Ka6 b2 Bg1 Rc5 Ka7 Bc6 Qb4 Qh7+ Qb7 b1R Ka8 Ba1 Rc4 Rf4 Bf5 Rb2 Rd4 Rc3 Rb4 Rf1 Rg4 Nc4 d6 Rf4 d7 Qc5 d8Q Bf3 Qd3 Be4 Qc2 Qd8 Rd6 Bd5 Qd1 Qde7 Rdd8 Rd4 Rd7 Qed6
r1bQQB1N/4r1qq/4Prn1/1p1b3B/B1q5/k1NK1N2/n2RNB2/1R2b2R w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 e4 g5 a4 f5 h4 b3 d6 Kc6 e6 b6 h6 f4 e7 f3 e8B+ Qd7 a5 b2 h5 c4 h7 Kb5 d5 Kb4 h6 f2 e5 g4 e6 c3+ Kd3 c2 a6 g3 a7 g2 Nf3 g1R Nc3 b1B Be3 Bg7 Be2 f1Q Bf2 Ba2 Rb1+ Ka3 Qd2 Qc6 d7 c1Q d8B Na6 d6 Ne7 d7 Rf8 h8N Qc7 h7 Qb2 Ng6 Rf6 h8N Bd5 Nf4 Ng6 Qd1 Qh3 Be7+ Qc5 d8R b5 Bf8 Qh7 Qd2 Bh6 Bd1 Rg2 Ba4 Nb4+ Ke2 Na2 Kd3 Bg5 Nfe2 Bh4 Rd6 Rg1 Rd7 Rf1 Qg5 Rf7 Qd8 Re7 Bf7 Bg5 Be8 Bd2 Rd6 Be1 Bf7 Rb8 a8Q Qcb4 Qc6 Ra8 Qce8 Qc4+ Ke3 Ne5 Bh5 Ng6 Rd7 Bc6 Rd2 Bd5 Ne4 Qf6 N4c3 Qfg7 Nfg1 Qhg8 Bh4 Rf6 Bf2 Qc5+ Kd3 Q8h7 Nf3 Qc4+
4Q1Q1/5B2/1N1P1k2/Qn1nq1bn/Rrq3qQ/1B5b/2r1RKBp/1bB2NR1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Ke7 e4 f5 d4 h5 b4 c5 e5 a5 b6 c4 b7 h4 g6 a4 g7 f3 d6+ Ke6 d7 h3 g5 a3 g6 h2 b5 f4 b6 a2 Nd2 c3 Nh3 c2 Kf2 Ne7 Qe1 Rh4 Rg1 Na6 b8R Nd5 b7 Nac7 Bg2 Nb5 Nf1 Be7 Qa5 Qg8 d8Q Bg5 Qe8+ Kf5 e6 Kf6 e7 Bf5 Rc8 Ra7 b8Q Rc7 Qba8 Qe6 g8B Be4 g7 Qg4 Qh5 Rc6 e8B Rc7 Rb1 a1Q Rb4 Qc3 Ra4 Rc5 Ba3 c1Q Bef7 Bb1 Re8 Q3b2+ Re2 Rc2 Qc8 Qc3 Qb8 Q1b2 Qe8 Qc4 Be6 Qa1 Bgf7 Qac3 g8Q Qe3+ Ke1 Qe5 Bc1 f2+ Kd1 f3 Nf4 Rh3 Qh4 Rg3 Ng6 Rh3 Ne7 Rg3 Nc8 Rh3 Ne3 f1N Ke1 Ng3 Nb6 Nh5 Nf1 f2+ Kd1 Ndf4 d5 Rb3 d6 Rb4 Bed5 Qc5 Bb3 Nd5 Ng3 f1B Ke1 Qcc4 Kf2 Ndf4 Ba8 Bg2 Nf1 Bh3 Bg2 Nd5
nk2N3/1q1B3R/nBp5/4qK1P/2N2BR1/Q2B1NbN/4r2R/rbq1Q1rb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 a5 Ke4 g5 b4 c6 d4 Kc7 h4 g4 d6+ Kb7 d5 f3 b6 f6 h6 f2 h7 g3 h5 g2 b5 a4 d7 a3 d6 a2 Nh3 g1R Bf4 Bg7 Qe1 Rg4 Na3 Rg6 Rh2 Nh6 Nc4 Qc7 d8Q Nf7 d7 Nh6 Qe7 Nf7 d8B Na6 Qa3 Kb8 b7 Rg1 e3 Rf8 h8R Ne5 Rh7 Re8 Bd3 Nd7+ Kf5 f1B e4 Bg2 e5 Bh1 e6 Nb6 Rb1 a1Q Rb4 Bf8 Ra4 Bd6 Rb4 Ka7 b8N Qb7 Nd7 Re7 Nde5 Kb8 Nf3 Qd4 Bg5 Bg3 Bf4+ Qd6 Ra4 Ra7 Rb4 Na8 Ba5 Bd7 b6 Be8 Ra4 Bf7 Rb4 Re8 e7 Qe5+ Kg4 f5+ Kg5 Rf8 e8B Bg6 Bd7 Re8 Ra4 Qbc7 b7 Qb6 Bc1 f4+ Kg4 Qb3 Bb6 Be4 Nh4 f3 Bf4 f2 Nf3 f1Q Rb4 Qd6 Ra4 Bg6 Rb4 Re2 Ra4 Be8 Kf5 Qe5+ Kg4 N8c7 B3f5 Bg2 Qeb4 Nc5 Ncd2 Bf2 Bg5 Ra6 Qa1 Qbd1 Ba5 Ka7 b8N Bf7 Bd3 Qb1 Qbc3 Qb7 Bb6+ Ka8 Qcb2 Ra5 Na6 Bg3 Rd4 Ba2 Nc4 Qe1 Be3 Qc3 Qe1 Bb1 Bg5 Ra2 Qa3 Bh1 Re4 Qc1 Bh6 Qeb2 Kf5 Ra1 Rg4 Qh8 Bf4 Qhb8 Nb4+ N5a6 Nd5 Qh8 Nf6 Kb8 Ne8 Qd4 Bh6 Na8 Bf4+ Qe5+
N2bR2r/1R6/1PRB1nk1/QbrRQ3/r2q4/NBB2q2/KQ1npn2/6Bb w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 Kd2 h5 Kc3 a5 Kb3 c5 f4 e5 g4 a4+ Ka2 e4 b4 c4 g5 c3 g6+ Kf6 b6 c2 b5 h3 g7 h2 b7 e3 d6 h4 d5 h3 d7 a3 d6 Rh4 Ne2 Qc7 d8Q+ Qe7 d7 Nh6 g8R Ra7 Nd4 Rh5 Bb2 c1Q Qd2 Ra4 Bc4 e2 Ne6+ Qc3 Qa5 Rg5 d8R Ng4 b6 Qd7 Bb3 Bc5 Nc7 Rg7 Rc1 h1N Rge8 h2 Na8 Nc6 b8Q Qdd4 Rd5 Qf3 Bc3 Nhf2 Qb2 h1B Qe5+ Kf7 f6 Bd7 f5 Be7 Rc2 Bd8 Rc1 Rg8 Rc2 Rf8 Rc1 Kg8 f7+ Kh7 f6 Rh8 f8B Kg6 f7 Nf6 Bd6 Rc4 f8B Rc5 Re7 Be8 Rb7 Bd7 Bh6 Be8 Be3 Bd7 Qa4 Na5 Rc2 Nc4 Qa5 N2g4 Bg1 Nf2 Nd2 Bb5 Rd1 Ne3 Nc4 Nf1 Rd3 Nd2 Re3 Rc7 Qh2 Rc5 Re8 Bg2 Qe5 Bh1 Ka1 a2 Na3 Nc4 Rc1 Nd2 Bb4 Bc6 Nb1 Rb5 Rcc5 Bd7 Rc8 Rc5 Bc3 Bb5 Rc6 Qb4 Qc1 Qbe4 Kb2 a1R Qc2 Ra4 Na3 Nb1 Ka2 Nd2 Qb2 Qd4
N1rRK2b/1B3B2/bP2n3/QR1R1bRB/1pNqNq1k/4nn1r/1B4Qr/8 w - - 0 1 illegal: No proof kernel
rQN1n2N/3b3R/P1b1kNp1/4BR1q/r3N1BQ/2Knq1RQ/1Q1b3n/5r2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 d4 e5 Kd2 b5 a4 c5 h4 c4 h6 b3 f6 e4 f5 b2 h7 e3+ Kc3 g6 a5 e2 a6 e1R d6 Bd7 d5 Bc6 d7 Qb6 d8N+ Ke8 h5 Kd7 d6 Nh6 f7 Ng4 h6 Ne3 f6 Bb7 Bh3+ Nf5 Qb3 Rf1 Ra3 Bc8 Nc6 Ke6 Bf4 Nd7 Nf3 Ne5 d7 Ng4 d8Q Nh2 Bg4 Bd7 Nbd2 b1B Qb2 Be4 Na7 Bec6 Ne5 Be7 Rb3 Ba3 f8Q Qf2 f7 b4+ Kc2 c3 Nc8 Qe1 Qh4 Qe3 Qfd8 Re8 h8Q Re7 f8R Rf7 Be2 Ng7 h7 Ne8 Ne4 Ra1 Bg3 Rff1 Rf5 Ra2 Bg4 Raa1 Qa2 Bc1 Qb2 Ra5 Ra3 Ra4 Kb3 c2+ Kc4 Qf4 Rd3 b3+ Kc3 Qf3 Qc7 Qe3 Qb8 Qh6 Bf4 Qg5 Rg3 Qh5 Qa3 b2 Qh3 b1Q Qab2 Qa1 Qf6+ Kd5 Qfh4 Ke6 h8N Qa2 Nc4 Qb1 N4b6 Qa2 Bc7 Qd5 Be5 Qd4+ Kb3 Qd2 Nd5 Qdg5 Ndf6 Qe3+ Qc3 Bd2 Kb2 c1N Kc2 Nd3 Qcb2 Bc1 Kb3 Rf3 Kc3 Rf1 Qg5 Qh4 Qhg2 Nf3 Rh2 Qh7 Rh4 Qh6 Qh3 Nh2 Rh5 Qh7 Qgh4 Qhh6 Na7 Qhg5 Rh7 Qh5 Nc8 Bd2+
2k3qr/rn3bBp/B1b5/4b2r/2NR3q/1n1B1KP1/1Q1BQ1RN/nRN2N2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 e4 a5 d4 f5 b4 c5 g6 f3 b6 a4 d6 f4 g7 c4 b7 c3 g3 a3 e5 c2 d5 a2 e6+ Ke8 b5 Ra3 e7 Kd7 e8N Nc6 b8Q Rc3 b6 Rb3 b7 Na7 Qe2 Nf6 g8B Rb4 Rh2 Rb3 Rg2 Bg7 Nd2 Ra3 Rb1 a1N Bf7 Nc6 Bg6 Ra2 Bd3 Ra7 Ba6 Qe7 Bb2 Kd8 d7 c1Q Nd6 Ne8 N6c4 Qh4 Qbe5 Nd6 b8N Nd4 Nc6+ Kc7 d8R Bb7 Nb4 Bc6 Nd3 Ndb3 Bc3 Qc2 Nc1 Qa2 Bb4 Bf6 Qb2 Nb7 Rd7+ Kc8 d6 Bd8 Bc3 Bc7 Bg7 Bb8 Qe1 Bc7 Bd3 Bb8 Qe2 Bc7 Kf1 f2 Ngf3 Bb8 Nh2 Bc7 Qe6 Bb8 Ke2 f1B+ Kf2 f3 Qee5 Be2 Ndf1 Bc7 Ke3 f2 Qe6 Bh5 Qg4 Bf7 Qge2 Ba4 Kf3 Bb8 Re7 Bc6+ Re4 Kd8 d7 Be5 Bb5 Kc7 d8B+ Kc8 Bg5 Bf4 Ba6 Be5 Nfd2 f1R+ Rf2 Rg1 Ndf1 Rh1 Rg2 Qa3 Be3 Qf8 Bd2 Qg8 Ng4 Rh3 Ngh2 Ba4 Rd4 Bc6+ Ke3 Qe7 Kf2 Rh5 Ke3 Qh4 Kf2 Bce8 Kf3 Bc6+
1b1RrB1q/1n2N1pN/B3R3/1Pr2r1b/5R1Q/k1K2NBn/2R2q1Q/Nq1b4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 h4 Kd6 e4 f5 d4 a5 Kd2 c5 h6 a4 h7 a3 e5+ Kc7 e6 Kd6 h5 f3 b6 a2 b7 f2 h6 c4 e7 f4 e8N+ Kd7 d6 Kc6 d7 Kb5 d5 f3 d6 Ne7 Qe1 Ka4 Nf6 Na6 b8B Qb6 d8N Nd5 d7 Bd6 Rh4 Nf4 Nc6 Qd8 Na3 Rf8 h8Q Nh3 h7 Nc5 Nc2 Nb7 Ne7 c3+ Kd3 Ra5 Rf4 Rf5 Ba3 Re8 Rc1 a1Q Be2 f1B Qh4 f2 Nf3 Qb2 Na1 Qb1+ Rc2 Bg2 Kd4 f1Q Ba6 Qf2+ Kc4 Be5 b5 Bc7 Re2 c2 Re6 Bf1+ Kc3+ Bc4 Bc5 Bd6 Bb4 Be2 Bc7 Bd1 Bb8 Qdb6 d8R Bc7 Rd2 c1R+ Rc2 Bd7 Qf8 Qh2 h8R Qbf2 Nh7 Bc6 Qff6 Be4 Rf8 Bd3 Qg3 B3e2 Qfh4 Qh1 Qh2 Bd6 Nd4 Bh5 Nf3 Bc7 Ba7 Bb8 Bd4 Qe2 Bf2 Qef1 Bg3 Qf2 Nc6 Re7 Rd8 Re8 Ba5+ Ka3 Ne7 Ref8 Bc7 Re8 Bd6+ Nc5 Nhg5 Qhg1 Nd5 Qe2 Qh1 Bg4 Qh2 Qe5+ Kc4 Qf6 Bf8 Bh5 Ne7 Nb7 Kd3 Qf7 Nh7 Qg8 Kd2 Qf1 Rb2 Rcc5 Rc2 Qg2+ Kd3 Qh8 Kd4 Qf2+ Kd3 Rce5 Kc3 Rc5+
1q3Bn1/2R1Np1k/b2bb2q/PNBNnK1Q/1n1qR3/rB6/Q1r4R/B6R w - - 0 1 illegal: No possible last move, all moves rejected
Rn3q2/b3PBR1/4bNr1/1rn2RBr/4NBR1/Qb1nQ1Q1/4p1K1/2Bk3q w - - 0 1 illegal: No proof kernel
3RRQq1/N3P1Q1/r6K/1b2Q2R/4BnQ1/nq1B4/pnrk2BB/1rq1b2N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 g4 Kc5 e4 Kb4 d4 c5 g6 h5 g5 f5 e5 a5 b6 c4 b7 c3 g7 c2 e6 h4 g6 h3 d6 h2 d5 a4 d7 a3 e7 Ra4 d6 Ra5 Nc3 Qe8 d8Q Ra7 d7 Nf6 g8B Nd5 g7 Na6 Nh3 Nc5 Bh7 Nd3 g8B Bg7 Nb5 Bc3 b8Q Ba6 Nf2 a2 Rb1 Kc4 b4 Ra8 Be6 Qg8 Qf8 Ra7 Bd2 c1R d8Q Rc2 Bg2 Nb2 Bc8 Kb3 Qg7 Ra8 Bb7 Kc4 Ne4 Kd3 Bg6 Rh4 Ng3 Rh3 Qbe5 Rh5 Kf2 f3 Qdb8 Rh4 Qbf8 Re4 Bh7 f4 Bf5 Nb6 Bg6 N6c4 Rc1 Na3 Bf5 Rd8 Na7 Rd6 b5 Ba5 b6 Bb5 Ba8 Bc3 b7 Ra6 b8R Bb4 Kf1 f2 Qdg4 Bc3 Rd1 Ba5 Rg1 h1N Re8 Bc3 Bf3 Ba5 Kg2 Bb4 Kh3 Bc3 Nf1 Ng3 Kh4 Ne2 Bg2 f3 Bf4+ Bd2 Bg3 Nf4 Kg5 Ke2 Rh1 Kd3 Be6 Re1 Be4+ Ke2 Rh7 Ba5 Rdd8 Rb1 Bh2 Ke1 Ne3 f1Q Nf5 f2 Bc4 Qd3 Ng3 f1Q Nh1 Qb3 Bcd3 Qg1 Rh3 Qe3 Rh5 Qc1 Qge6 Kd1 Kh6 Be1 Qeg6 Kd2 Qge6 Ng6 Qg4 Nf4+
2R1Qr2/Nk1P4/2qQ1n2/br3n2/rNR3B1/R1q2bR1/1bN1pQ2/BKq1N3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 g4 Kc7 f6 h3 d6+ Kb6 g5 c4 g6 e4 f5 a4 f7 a3 d7 a2 g7 h4 d5 c3 d6 h2 f6 e3 Na3 h3 Bb2 e2 Nf3 Qe7 d8Q+ Kb7 b6 Nc6 d7 Qd6 b5 Ne5 Qe8 Be7 f8Q Nc6 f7 Nf6 g8R Ng4 Ne1 Qc5 Qd6 Nge5 Rg3 Ra4 Kc1 Bd8 Nac2 Bc7 Bg2 Rh5 Bf3 Ng4 Rhg1 Nf6 Bg4 h1R R1g2 Kb8 b7 h2 Rf2 Qc4 Rf4 Nd4 Re4 Ka7 b8N Rf1 b6+ Kb7 Nc6 h1Q N6b4 Nf5 Rd4 Qcc6 Rf4 Qhf3 Rc4 Kb8 b7 Qd3 Qde7 Ba5 Qd6+ Ka7 b8N Kb7 Qf4 Qd4 Q8d6 Rf2 f8R Qdc5 Ne3 c2 Bc3 Rf1 Qf2 Qe5 Bb2 Qc3 Rh8 Nd4 Rg8 Rb5 Rh8 Nf5 Rf8 Qb6 N8c6 Qa6 Na7 Qc6 Rb1 a1B Rh8 Qb3 Bd4 Qc3 Rb3 Rh1 Ra3 Rh7 Qh5 Rf7 Rd8 Rf8 Be5 Kb6 Qe8 Bb7 Rc8 Ba8 Bd4+ Kb7 Bb6 Qb3 Bc5 Be5 Bd4 Qd3 Kb2 c1Q+ Ka2 Qdc3 N3c2 Q3f3 Ba1 Bb2 Rg2 Qd3 Rg3 Qc3 Nd5 Ka6 Rc5 Qb6 Rc4 Bc6 Ndb4+ Kb7 Qde5 Bf3 Qd6 Qg5 Kb1 Qc6 Qde6 Qgd2 Qd6 Qc1+
1NRq1B2/1NbpK2b/1bq1R3/QB2R1B1/6nR/2n2rQ1/2nP1r1r/Bk5N w - - 0 1 illegal: No possible last move
8/QPrn4/4NBBk/q1r1Qb2/2qpq1Q1/1nn1b1N1/BKRQB3/1Rb2N2 w - - 0 1 illegal: No possible last move
RnrBR3/P3qn2/R3K2R/Bb1n1N1b/1q2N1kN/2bBr3/1Qr1p1N1/3Q4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 b5 d4+ Kh4 a4 c5 f4 g5 f6 b3 a5 b4 h6 c4 d6 b2 f7 c3 f5 c2 d7 b3 d5 e6 f6 g4 d6 g3 a6 g2 a7 Bg7 f8N Qc7 d8R Qb6 d7 Qf2 h7 Bh6 f7 Bd2 Nc3 b1N Ne4 b2 Nh3 g1Q Nf4 Nc3 Ra6 b1B Re8 Qe1 Bd3 Nh6 d8B+ Qg5+ Kd6 e5 Ng2+ Kh3 Ne6 Nd5 f8R Bd7 Ng7 Bc3 Bd2 c1R Nf5 Bb5 Ke6 Nf7 Rg8 Ba2 Rgf8 Rg8 h8N Rc2 Ng6 Qge3 N6h4 Rg3 Rh8 Q3e2 Rh6 Kg4 Rf1 Re3 Rf3 Ba1 B2a5 Qb4 Rf4+ Kh3 Rg4 Bc3 Rgg8 Bac4 Ng6+ Kg4 h4 Ba2 h5 Bb3 Ng5 e4 N6h4 Rh3 Rgf8 e3 Ne4 Rf3 Rhh8 Qe1 h6 e2 h7 Re3 Re7 Qg3 Ree8 Qf4 Rfg8+ Qg5 Rg6 B3a4 Rhg8 Bb3 h8Q B3a4 Re7 Be8 Rh6 Bab5 Qg7 Nd6 Rf8 Bh5 Ree8 Nf7 Qe5 Nd7 Qg7 Rc8 Rfh8 Nb8 Rhf8 Bd2 Qb2 Bc3 Be7 Rc7 Rd8 Nc6 Ra8 Nb8 Bd8 Rc8 Re8 Qge7+
2k5/p2bBB2/q4bRq/1QN4n/r2Q2nR/r5r1/BbP1N1BN/K2R1R1q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 e5 b4 h5 f4 d5 g4 Kd7 b6 h4 f6 d3 Kc3 h3 Kb2 e4 b5 h2 f5 d2 b7 d4 f7 e3 g6 e2 g7 e1B f6 d3 g5 Be7 f8N+ Kc7 g6 Bh4 f7 Beg5 b6+ Kc6 Ne2 Rh6 Nd7 Nf6 g8B Ng4 g7 Qf8 Nc5 Nd7 b8R Ndf6 b7 Kc7 Bg2 Bd7 Rd8 Rg6 Ra6 Rb8 Ka1 Nh5 Ba3 Bh6 Qg1 d1R Qd4 Bc1 Nd2 Bf6 Nf3 d2 Bb4 Qd6 f8R Re1 Rb6 d1Q Ba2 Qd2 g8B Qh6 Bgf7 Rd1 Rf1 h1Q Nh2 Rd3 Rh8 Ra3 Rh7 Qe6 Rd6 Ra4 Rg8 Rg5 Rg6 Re8 Rd5 Qa6 Ba3 Re3 b8Q+ Kc6 Qb5+ Kc7 Rd1 Rc3 Rf5 Kc8 Rff1 Rg3 Nb3 Rf5 Be7 Rff3 Nc5 Nf2 Rg4 Rfa3 Rh4 Ng4 Rg7 Qa5 Rg5 Qa6 Rg6 Bb2+
r4nRr/3R4/2N1bR1R/3Bb1Kb/2b3b1/1kB2pNQ/3rB2P/BNnq2Q1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 f5 e4 d5 a4 b5 c4 g6 h6 b3 a5 b2 a6 b4 c6 b3 c7 d4 c5 d3 h7 d2 c6 Be7 a7 Bf6 Be2 Nd7 Ra6 Ne7 Qe1 d1B Bd2 Nc5 Bc3 Bg7 Kg5 f4 Qf2 Bd7 c8Q Nd3 Rb6 Nc1 c7+ Kf7 Rd6 Bg4 Rd7 Ke6 Qf1 Bc2 Qh3 Bd3 Qb7 Bc4 c8N f3 Qb6+ Kf7 Qd4 Ke6 Qd1 Ng8+ Ne7 Nf6 Nc6 Qc8 Qe1 Qd8 Rf7 Qd1 Qf2 Nd7 Qc5 Nf8 Rf6+ Kd7 e6+ Kc7 Qf2 Kd6 e5+ Kd5 e7 Bh5 e8R Bg4 Nd2 b1B e6 b2 e7 Bbf5 Nb1 Be6 Rb8 Bh5 e8R Bhg4 Rb6 Bh5 Rf4 Be5 Rf6 Bhg4 Qfg2 Kc5 Ra6 Kb5 Rb6+ Ka4 Ra6+ Kb3 Qf1 Rd8 a8B Rd2 Rd8 Bh5 Rd7 Bhg4 Bd3 Bh5 Ne2 Beg4 Qg1 Bge6 Kh6 g5 Ng3 g4 Bb7 Ne2 Kg5 Nc1 Na3 b1B Be2 Bbf5 Nb1 Ng6 Ba1 Ra8 h8B Nf8 Nf1 g3 Bc3 g2 Ng3 Bcd3 Ba1 Bfg4 Rh6 Bd6 Bhc3 Be5 Qc5 g1R Na7 Re1 Be4 Ng6 Bf1 Bd6 Bd5+ Bc4 Kf6 Bef5 Ne2 Nf4 Rg1 Ne6 Rg2 Bg3 Qg1 Rh8 Rad6 Nf8 Nc6 Bf4 Qh4 Bh3 Rg8 Bg3 Kg5 B3g4 Rdf6 Bb8 Ng3 Re8 Qh3 Be6 Bd3 Be5 Be2 Ra8
KQ4RQ/N3n3/1Q1N1Bn1/2P1b2B/b2Rpk2/Qr1B4/N3rb1N/1nb3bq w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 g5 f4+ Ke4 b4 a5 h5 e5 f6 g3 h6 a4 h7 a3 f7 a2 b6 d5+ Kb5 g4 c4 g2 b7 g3 f5 d4 c6 d3 c7 d2 Kb6 Na6 b8N Bh6 f8Q Qd3 f6 Qd8 f7 Qd3 b5 Ne7 Rh4+ Kf5 Qb3 d1N Rd4 e4 Bg5 Nf2 Nf3 g1B Nc3 g2 Bf6 Ng8 Nh2 Nd1 Qfa3 Ra7 f8Q Bc1 c5 Bd7 c8B Qh3 Bd3 Nb4 Nc6 Bf2 Qe8 Ra6+ Kb7 g1B b6 Ne7 Na7 Kf4 Ka8 Nbc6 b7 Rb6 b8Q+ Ne5 Qe6 Rb1 Qeb6 Ba4 Bg4 Rb3 Bh5 Rf8 Rb1 a1B Na2 Nc3 h8N Qh4 Rb2 Nb1 Nf7 Qh3 Nd6 N5g6 Rd2 Qg2 Re2 Qh1 Re3 Rf7 Qh8 Rh7 Rg3 Rh6 Rb4 Be5 Rd4 Rh7 Bg4 Rh4 Bh5 Rh3 Rg2 Re3 Rg3 Re2 Rg2 Nh4 Rg8 Nhg6
R1r5/3BBn2/r1bR3P/Bnb1B1NQ/r1r1N2p/2Q1r3/n1R1RN1K/3q1k2 w - - 0 1 illegal: No proof kernel
1N1n2b1/4r1B1/bNb4P/1RrN1n1k/QRp3q1/1Q3R1b/1bN3BB/2n1B1K1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 b5 e4 f5 a4 Kf7 h4 c5 d4 g5 e6+ Kg7 a5 Kh6 d6 f4 a6 c4 e7 f3 e8R b3 d5 b4 d7 b2 e5 b3 a7 Ba6 e6 Nf6 d6 Qc7 d8N Nd5 d7 Bb7 e7 Bc6 Ra4 Bg7 Na3 b1B Rh3 b2 Bg2 Bf6 Qb3 Rh7 Bf4 Bf5 Nc2 b1B Bh2 g4 Ne2 g3+ Kg1 Ne3 Nc3 Qf4 Nd5 Bb2 Rb4 Qg4 Rf8 Be4 e8Q Re7 Rf5 Bb5 Nc6 Ba6 d8B f2+ Kh1 f1B Kg1 Bf3 Ba5 Be4 Rf3 Bh7 Rb5 Bg8 Be1 Nf5 Rb4 Nd7 Nb8 Nf8 Qea4 Ne6 Rb5 Nd8 Rb4 Kg7 h6+ Kg6 h7 Kh5 Nce3 Be4 h8B Rc7 Bg7 Rc5 Nc3 Bc6 Ncd5 Bh7 Nc2 Bg8 Nd7 Rb8 a8N Rb7 Nb8 Ra7 Nab6 Re7 Bh1 g2 Rhg3 Kg6 h5+ Kg5 h6 Kh5 Kf2 g1N Bg2 Ne2 Rb5 Nc1 Kg1 Qh3 Rg6 Qg4 Rd6 Bc8 Rd7 B8b7 Rb4 Ba6 Ra7 Bc8 Ra5 Ba6 Rab5 Qh4 Bh1 Bh3 Bg2 Qg4
Qr1B2r1/Q2N1qR1/R1N2Pnk/B1Brb1R1/8/4p3/nQBr1br1/1b2KR2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kg7 d4 c5 g4 h5 g5 e5 f6+ Kh7 f7 a5 g6+ Kg7 b6 a4 d6 c4 b7 a3 d5 e4 b5 a2 d7 h3 d6 c3 f5 c2 b6 h2 Qe2 e3 f6+ Kh6 g7 h4 Nd2 h3 Ndf3 Qe7 d8Q Bf5 d7 Nc6 b8Q Nb4 Qa7 Rb8 Bd2 c1B b7 Bb2 Qb5 Bb1 Bd3 Be5 Bc2 Qe6 Bc3 Ne7 g8R Ng6 Nd4 Bfd6 Rg7 Rg8 f8B Qf7 Ngf3 Bc7 Rg1 h1R Rf1 h2 Bc5 Rg1 Nc6 h1R Qe2 Bh2 Nfe5 Rg2 Qe8 Bg1 d8B Rh5 Nd7 Be5 Qf8 Nd5 Bca5 Nc3 Qb5 Rf5 Qb2 Rff2 Qe8 Rd2 Qf8 Ra8 b8R Rd5 Rc8 Rb8 Rc7 Rh2 Qb4 Rh1 Bd3 Rh2 Bde7 Rc8 Bab6 Bf4 Nde5 Rg2 Rh7+ Kg5 Rh3 Qe8 Rg3+ Kh5 Bf5 Qd7 Qd8 Kh6 Rg5 Ra8 Qc8 Qe6 Bd8 Qd7 Qcb7 Rb8 Qba8 Qe8 Rg7 Qf7 Nd7 Be5 Qba3 Be4 Rb1 a1R Qb2 Bd3 Rd1 Rc1 Be4 Rcc2 Ra1 Rcd2 Ra6 Na2 Ba5 Bb1 Bc2 Bf2+
qb1Q4/Rr2Nnb1/bRb1p1B1/2rN4/RPbQ2rB/n2B4/k3K3/1NB2N2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 d4 Kd6 g4 h5 f4 c5 f6 a5 f5 c4 b6 c3 g5 e6 b7 h3 f7 a4 f6 c2 g6 a3 g7 a2 Ne2 h4 Qd2 h2 Ng3 h3 Bd3 Rh7 Nf1 Nc6 b8R Ba6 Ke2 Nh6 g8B Bg7 f8N Ne5 f7 Nc4 Ng6 Na3 f8N Nf7 Nf4 Ra7 Qd1 Rb7 N8g6 Rh4 Ne7 Rg4 Bh7 Qc8 Rg1 h1B Bg6 h2 Rg3 Bg2 Rh3 h1B Rh7 Qc5 Qd2 Qa7 Qc3 Qa8 Qb2 Kd7 d6 Bc6 d5 Bcb5 Qd4 Bc4 Be3 c1R Bd2 Ra7 Rb6 Rb7 Be3 Bcb5 Bd2 Rc5 Bc1 Be5 Rg7 Bc4 Rh7 Kd8 d7 Bb8 Rg7 Kc7 d8B+ Kd7 d6 Bc6 Nfd5 Rb5 Nbc3 Rc5 Rb1 a1B Rh7 Bb2 Ra1 Nh8 Nb1 Nf7 Nc8 Bc3 Bh4 Bb2 Qf2 Bg7 Nce7 Ke8 d7+ Kd8 Nde3 Kc7 N3d5+ Kd6 d8Q+ Ke5 Qh2+ Kd4 Qhd6 Nb5 Ra5 Na3 Ra4 Rc7 Qh8 Ne5 Nc8 Bf6 Qdd8 Rd7 Re7 Nf7 Nbd2 Rc7 Rd7 Be5 Nce7 Ra7 Nf4+ Kc3 Nb1+ Kb3 Nfd5 Ka2 Qf6 Rc7 Qf4 Bg7 Qd4 Rc8 Rdb7 Rc7 Ra7 Rb7
1nb2Nbk/br3RR1/3PB1Bb/1R1K1N2/1N1N2q1/Bp3r1Q/2b1R3/4nQn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 Kg7 Kc4 h5 d4 c5 f4 e5 g4 b3 a4 e4 a5 b6 f6+ Kh7 a6 h4 f5 e3 d6 b2 a7 b5+ Kd5 h3 d7 h2 f7 b4 g6+ Kg7 g5 c4 Nd2 b1B Ndf3 e2 Nh4 e1N Ngf3 b3 Bd3 c3 Ra5 c2 Ba3 c1B Rb5 Qb6 d8N Rh5 f6+ Kh8 Nc6 Bh3 Nb4 Bg7 f8R Bf1 f7 Qf6 Nf5 Bh3 Re8 Rh7 f8N Be3 Rf1 Bg1 Re2 h1B Be4 Nh6 Rff2 Ng2 Qf1 Ng4 Bc2 Bh6 g7+ Kg8 Bd3 Ne1 Be4 Bc2 Bd3 Kf7 g8R Qg7 g6+ Kf6 Be4 Ne5 Bd3 Qe7 g7 Qd7+ Ke4 Bg4 d5 Bg2 d6 B2h3 Ne7 Be6 Nd4+ N5f3 Nef5 Kf7 Rh2 Bge3 Rhf2 Ng1 Ke5 Qe7 Be4 Qh4 Rf3 Bc8 Kd5 Qg4 Rff2 Na6 Rf4 Rb8 a8Q Rb7 Qa7 Nb8 Qc5 Bf2 Qc3 Bg2 Qh3 Bh1 Nf3 Ba7 N3d4 Bf3 Rh8 Kf6 g8B Rhf7 Rh7 Bg2 Ng6 Rf8 Be6 Bf3 Rd7 Rf7 Nf8 Bh1 Ne3+ Kg7 Nef5+ Kh8 Rf3 Rf6 Rg7 Bg2 Rc3 Bh1 Rcc7 Bf3 Rcf7 Bh1 Ne7 Rf3 Bg6 Rf4+ Ke5 Bd5 Nef5 Rf3 Rh2 Bc6 Re2 B6d7 Kd5 Be8 Rd7 Bf7 Re7 Bg8 Rd7 Rf4 Rdf7 Rf3
B3n2b/4N1bk/2p2bRB/1R4RN/2PQ1rB1/3q3r/Q1n3bK/2br1BNN w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 fxg4 h4 g3 Kd2 g4 Ke1 Qg5 hxg5 Kd8 Be3 Ke7 Bc1 Ke8 c4 Kf7 f4 Kg6 b4 a5 e4 h5 b6 d5 f5+ Kh7 f6 a4 b5 a3 f7 h4 g6+ Kg7 b7 h3 e6 d4 b6 d3 e5 a2 e7 g2 Kf2 h2 Kg3 d2 e8B Bf5 e6 Rh5 e7 Rh7 Bc6 Nd7 b8R Ne5 e8B Be4 b7 Nf3 Nc3 Nd4 Bed7 Nc2 Nce2 Nf6 Be6 Kh6 g7 Ne8 g8N+ Kg6 Bcd5 Bg7 f8Q Bf6 Rb1 a1B Rb5 Bg7 Qf2 Baf6 Qd4 Ra2 Qe1 d1Q Qef2 Qd3+ Be3 Rh8 Ne7+ Kh7 Rc5 Bf3 Bh6 Ra3 Rb5 Rf8 Rc8 Ra1 b8N Rd1 Ba8 c6 Nd7 Bh8 Rd8 Bfg7 Rg5 Rf4 Rb8 Bf6 Rbb5 Bfg7 Kh4 g3+ Kh3 Be4 Bg4 Bd5 Nf3 g1B Rg6 g2 Ng3 Be4 Qe2 Be3 Rg1 Bc1 Nh1 Na3 Qa2 Nc2 Nf2 h1R+ Kg3 Rh5 Nh1 Re5 Kh2 Bd5 Nc5 Re3 Ne4 Bf6 Neg3 Bfg7 Be2 Be4 Nh5 Bd5 Re1 Bf6 Bf1 g1B+ Kg2 Bf2 Kh2 Be4 Ng1 Bg2 Rgg5 Bfg7 Rg6 Bh4 Rgg5 Rg3 Re6 Rgf3 Reg6 Re3 Rge5 Bhf6 Reg5 Rh3+
1K3bqQ/6pQ/N3nPN1/r4RrQ/Bn1B3r/b2B1rBR/2NNb1r1/2k5 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 a5 b4 d5 h4 d3 f4 a4 h6 a3 f6 a2 f5 d2 h7 Ke3 h5 d4 b6 d3 f7 Ra6 b7 Rf6 h6 Nc6 b8B Qd5+ Kb6 e5 Kc7 e4 c5 Nge7 b5 Qd4 b6 Qb4 b7 Ng8 Ne2 Qc4 Bb2 Nb4 c6 Ne7 Nd4 Ng6 Qh5 d1R Nd2 Nf4 Rc1 Rg6 f6 a1R Rh3+ Rg3 Be2 Rg1 Rf1 Rf3 Bd1 Ra5 Ba4 Bg4 Nc2+ Ke2 Bd4 Ne6+ Kc8 e3 Bg3 Qa2 b8N Rg2 c7 Rg5 Rf2+ Kd1 Na6 e2 Kb8 e1B c8B Kc1 Bb7 Qb3 Be4 Qd5 Nf1 d2 Bd3 d1R Nd2 Rf4 Rf1 Be2 Rf3 Rh4 Rf5 Rg8 h8N Bf2 h7 Rf1 Ng6 Be3 h8Q Rf3 Bde5 Bd4 Q8h7 Bb2 Bd4 Ba3 Be8 Rh8 Ba4 Qb3 Rf4 Ra5 Rf5 Rg4 Bdb5 Rg5 Bd3 Bc5+ f8Q Be7 Qe8 Bf8 Qc8 Qd5 Bab5 Qd8 Ba4 Qe8 Qd8 Qf7 Qc8 Qg8 Q7h6 Be7 Qh4 Qf7 Qd8 Rh7 Qh8 Bf8 Qg4 Qg8 Qgh4 Rg4 Q6g5 Rh5 Qgh6 Re4 Q6h7 Rg5 Q4h5 Rh4
k2r1BnR/2B1P1N1/2NrQ1N1/B1Qn2rQ/2q1bn2/1pQ3bn/2nR4/2K2B2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 h4 c5 d4 Kc7 Kd2 g5 e4 f5 h6 b5 h5 Kb7 d6 f4 e6 b3 e7 b2 e8Q c4 a5 b4 d7 b3 a6+ Ka7 h7 f3 d5 g4 e5 g3 d6 g2 e6 f2 h6 Qf6 d8B Qg7 d7 Bd6 Nc3 b1R Nce2 Bh2 Nd4 Qe5 Bc7 Qg3 d8B Bb7 Ra2 Qh4 Nh3 g1N Qdh5 Bc6 Ng5 Be4 Ba3 Nh3 Bf8 Nd7 e7 Bg3 Qef7 Ndf6 Nge6 Rb2+ Kc1 c3 Ng7 c2 Qe6 Nd5 Ba5 Rc8 Bdc7 Rd8 Nc6+ Ka8 a7 Rd6 Rh2 Qg4 Rh1 Qe2 Rh2 Qc4 Rh1 Ngf6 Rh2 Rg8 h8Q Rd8 h7 Rb1+ Kd2 c1N Kd1 Ra1 Rd2 Ra4 Rh1 Nd3 Rh2 Nd3f4 Rh1 Nb4 Qc5 Nc2 Kc1 Rb4 Rh2 Rb5 Qh5 Rg5 Rh1 Rd6 Rh2 Kb7 Rh1 Ka6 a8Q+ Kb5 Qa7 Bh2 Ne8 Bf3 Bg7 Be4 Qg6 Bg3 Qc5+ Ka6 Be2 f1N Bh6 Nfe3 Bf1 Kb7 Qgg7 Nfg4 Qc3 Ng1 Rh5 Ka8 Qhe5 Ngh3 h8N Nf6 Ng6 Rg4 Bg7 Rf8 Rh8 Ned5 Qh5 Ng8 Nf6 Rc8 Bf8 Rcd8 Ne8 Rg5 Ng7 Bh1 Qhf3 Bg2 Qh5 Be4
3N1q1n/bnKQP2N/8/2k2N1r/rn4Qp/1R1Q1BN1/RB2R1bn/1r2n2R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 h5 g4 a5 b4 f6 g6 f3 g7 c4 b6 f2 b5 c3 b7 a4 b6 a3 g5 c2 g6 h4 Nf3 a2 Qd3 Rh5 Ng5 Rh8 Nd2 Nd7 b8R Nh6 g8N Bb7 g7 Nf7 Nh6 Rh7 g8Q Qc7 Bg2 f1R Bb2 c1N Bf3 Bg7 Re8 Rd1 Nf1 Ba6 b7 Qb8 Ng3 f5+ Kf4 Bh8 e4 Nc5 Re7 Qe8 b8R Qf8 Rb3 Bb7 Re8 Ra4 e5+ Kd7 e6+ Kd6 Re7 Bc6 Qg6 Nb7 Qh5 Bf6 Qg4 Nh8 Re8 Bd8 Re7 Bb6 Re8 Rg7 Nh7 Ba7 Re7 Rg5 Re8 Kc7 Ke5 f4+ Nhf5 Rh5 Re7+ Bd7 Re8 Bb5 d6+ Kb6 d5 Kc5 d7 Bc6 d8N Re1+ Be4 f3 d6 f2 d7 f1N Re7 Nh2 Re8 Ne2 Bf3 Rb1 Re7 Nd4 Re8 Nc2 Re7 Nb4 Re8 Kb6 Re7 Nc5 Kd6 Ka5 Kc7 Nb7 Nf7 Bd5 d8Q Bc6 Q3d7 Kb5 Qd3+ Kc5 Q8d7 Be4 Nd8 Bd5 Rf7 Bc6 e7 Be4 Bd1 Bg2 Bf3 Rf1 Re1 a1N Re2 Nac2 Rf6 Ne1 Ra6 Ra1 Ra2 Rb1 Be4 Rf4 Bc6 Nbc2 Bd5 Ra4 Bf3 Nb4
N2n4/rP6/N4b1R/1nbbB2p/KN3BQ1/r1Q1B2B/Rq2RR1r/2rk1r2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 c5 d4 e5 Kd2 a5 Kc3 c4 g5 a4 b6 e4 f6 a3 b7 h6 b5 e3 Kb4 a2 f7 c3 b6 e2 f5 e1R g6 c2 g7 h3 f6 h2 Na3 Ra7 Qd3 Bd7 Be3 c1B Nc2 Bb2 Ne2 Ba4 Bh3 Bb3 Nc3 Qe8 Na4 Nd7 b8N Rc1 b7 Ne7 g8Q Rg1 Qg4 Rc1 Qc3 Nc8 Nb6 Bc4 Na6 Nc5 Na8 Ne6 Ka5 Rg8 Nb4 Nd8 Re1 h1R Re2 Qe6 Ka4 Qe5 Bf4 Be7 f8B h5 f7 Rh2 B8h6 Bf6 f8R Ba3 Be3 Rg6 Bhf4 Rg7 Rb1 a1R Rbb2 Rab1 Rh8 Rf7 Ra2 Rb3 Rh6 Rf8 Nd3 Bc5 Nb4 Ke7 Rf2 Nd6 Rfe2 Nb5 d6+ Kf7 d7 Ke7 d5 Kd6 Bg5 Qd4 Rf2 Ke5 d6 Be6 Bgf4+ Ke4 Rae2 Bd5 Ra2 Nf7 d8B Qd2 d7 Qb2 Bdc7 Nd8 Re2 Rf7 Qf5+ Kf3 Bce5 Nc6 d8R Rf8 Re8 Nd8 Re1 Rf7 Rf1+ Ke2 Rf2+ Kd1 Qg5 Rg7 Qh4 Rg3 Qg4+ Rf3 Re2 Rf1 Rf8 Bg7 Bg5 Bh8 Rff2 Bf6 Bgf4 Ra3+
4brN1/1kq1BNnb/2N1n3/Kr1B4/N4b1Q/p1rQb3/1PBQ1Q1n/5RR1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 d4 h5 Kd2 a5 Kc3 c5 g4 Kc7 f6 e5 b6+ Kb7 d6 h3 f7 h4 g5 e4 g6 e3 g7 a4 f5 h2 d5 c4 Kb4 a3 f6 c3 Bd3 e2 Bc2 e1R Nh3 Nh6 g8B Nf5 Bg5 Ng7 Rf1 h1N Qd2 Re7 d7 Re3+ d6 Na6+ Ka5 Qc7 d8Q Rh6 d7 Bc5 f8Q Nf2 f7 Ng4 Be7 Nh2 Ng5 h3 Ne4 Rd3 Nf6 Be3 Qfe8 Rb8 f8Q Nc5 Qh5 Nce6 Qh4 Bf4 Bf7 Rf3 Ng8 Rf6 Ba4 c2 Nc3 c1B Bc2 Re3 Na4 Rc3 Qd3 Bce3 Rg1 Nc5 Bfb3 Nce6 Raf1 Rg6 Qff5 Rf6 Ba2 Rf8 Qc5 Nf3 Qcf5 h2 Qc5 h1B Bd5+ Qc6 Qd2 Nh2 Qcd4 Bf3 Q4d3 Be4 Qdf2 Bh7 Qdd2 Ka8 Qd3 Ba6 b7+ Ka7 Qdd2 Be2 Qd3 Bh5 Qdd2 Be8 Qd3 Ra8 b8N Qc8 Nc6+ Kb7+ Kb5 Rb8 Qa5 Rc4 Qad2 Rc3 Ka5 Qd8+ Kb5 Qc7 d8N+ Ka8+ Ka6 Rb5 Nf7 Rb6+ Ka5 Kb7 Ba2 Be4 Bc4 Bh7 Bd5 Rb5+
n3b3/k1Br1n1K/4RnR1/3Q1p1N/P3N3/bR1n3B/N1QN1r1q/b2r2RQ w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 Kg4 b5 Kf5 c5 h4 Kc7+ e6 Kb7 d4 b3 a4 b2 e4 f6 Kg6 f5 e5 b4 e7 b3 e8N c4 d6 g4 d5 c3 h6 g3 h5 c2 e6 g2 h7 Ra6 e7 Qa5 h6 Qc3 Nh3 g1R+ Ng5 Ra8 d7 Qe5 d8N+ Ka7 d6 Nf6 d7 Qh2 Ng7 Nc6 e8R Ba3 Re6 Nb4 Bh3 Nd3 Nd2 b1N Nh5 Nc3 Rb1 b2 Kg7 Rg2 Rg1 Rf2 Nge4 Nb5 Rg6 Re8 h8Q Nd6 h7 Nf7 Rg1 Re7 Nc6+ Kb6 d8R Bd7 Nb4+ Ka7 Qg8 Be8 h8Q Rd7 Na2 Rb8 Rc8 Rb5 Rg6 Rbd5 Rb8 Rd4 Ra1 b1N Rb3 Nc3 Bb2 c1B Qc2 R4d6 Rb1 Nb5 Be5 Bcb2 Rbg1 Nc7 Qh6 Ng4 Kh7 Na8 Bf4 Rd4 Bc7 Bc3 Qh8 Bcb2 Qe5 Ba1 Qd5 Rb4 Rc3 Rb1 Rb3 Re1 Qf4 Ref1 Qf3 Rd1 Qh1 Nf6+
Q1n3QB/2nRRQ1b/1NR3pB/4rBbr/6b1/R1q1b1nr/P2N4/3K2Bk w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 d4 Kf6 h4 e5 h6 c5 h5 b5 d6 c4 h7 c3 d7 b3 d5 e4 d6 e3 h6 b4 Qh5 c2 Ne2 b2 Nd2 b1N Bh3 b3 Nc3 e2 Na4 b2 Nb6 Qc7 d8B+ Ne7 d7 Rg8 h8Q Na6 h7 Nc3 Rf1 b1B Rf3 Qc5 Bc7 Qe3 d8R Rb8 Bd6 Nc7 Bc5 Ra8 Bg4 Ra5 Rd7 Qd3 Bg1 Qd4 Ba3 c1B Qh1 Rc5 Rg3 Bc2 Qa8 Re5 Rd3 Re3 Bc5 Rh3 Rb1 Qe5 Bce3 Qa5 Rb5 Bb1 Re5 Qa3 Kf2 e1R Rc5 Ne2 Rc6+ Kf7 f6 Kg6 Bf5+ Kh5 f7 Kh4 Rb3 Qb4 Ra3 Qc3 Rd8 Be6 Rd7 Nc8 Re7 Bd3 Rd7 Bc5 f8R Be7 Rf7 Bg5 Rfe7 Rd8 Qg8 Be4 Rd3 Rd5 h8B Rc5 Rdd7 Bb1 Bg4 Bh7 f5 g6 f6 Bf5 f7 Ra5 Bh5 Bg4 f8Q Re5 Qff7 Rd1 Nb3 Rdd5 Nd2 Rb5 Ke1 Kg3 Kd1 Kg2 Bf4 Kh1 Bfe3 Bf3 Bg4 Rbd5 Bf5 Bg4 Bf4 Ra5 Nb3 Be3 Nd2 Bh6 Be6 Reh5 Bf5 Bg5 Nf3 Re5 Nd2 Bf6 Bh6 Bh4 Bb1 Bhg5 Bf5 Ng3+
R1b1Bb1B/R1R1qK2/3QR1n1/1QN5/q1B1N3/2q1q2B/nP3pr1/3rQ1qk w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 h5 g4 c5 g6 f3 g7 a4 b6 f6 g5 a3 g6 h4 b7 f2 Nh3 c4 Ng5 h3 Bf4+ Kd7 Kf5 h2 e4 a2 d6 Kc6+ d7 c3 Ke6 f5 d5+ Kc5 e5 c2 d6 c1Q Ne4+ Kc6 Nbd2 Qc3 Kf7 Kd5 e6 Ra7 e7 Nc6 e8B Nge7 g8R Nb4 g7 Ng6 Bh3 f1Q b8Q Qfd3 Nc5 Qe3 Be5 f4 Qb5 f3 Qe1 f2 Nde4 Ra8 Rg1 h1Q Rg2 Qh4 d8Q Qg1 d7 Ra3 Rc1 a1Q Qdb6 Na2 d8R+ Bd6 Rf8 Rg8 Rd7 Ra4 Bf6 Rd4 Ra7 Rd1 Rg4 Qhg5 Rh4 Qge5 Rh6 Q5g5 Bd8 Ke5 Bf6+ Kf4 Qd8 Be7 Qd6+ Kf3 Bd4 Nf4 Re6 Ng6 Bf5 Kg2 Bh3+ Kh1 Rc2 Rh8 g8B Rh4 Rc1 Rg4 Bh8 Rg2 Nb7 Qcd2 Rc7 Qec3 Nbc5 Qde3 Bd7 Qh4 Rd8 Bf8 Be8 Ba6 Rda8 Bc8 Ng5 Qa4 Nge4 Qb1 Rb8 Qbd3 Rba8 Qde2 Re5 Qe3d3 Kf6 Bf5 Ng5 Nh4 Bc4 Ng6 Kf7 Bc8 Ree7 Qee5 Nge4 Qg5 Re5 Qde3 Re6 Qe7+
RNK4Q/1n1R3q/q2bQ2r/7b/1Rqq1B1k/1Nq1BBp1/2B3P1/3n1rNN w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 exf4 c4 d5 cxd5 g4 Nh3 Ba6 Ng1 Qg5 hxg5 Bc8 Kf2 Ke7 e4 a5 d4 c5 b4 h5 b6 f5 b7 f3 Kg3 c4 Kf4 c3 Ke5 f4 d6+ Kf7 b5 Kg6 d5 f2 d7 g3 Ke6 a4 d6 h4 e5 a3 b6 f3 Qe2 Kh5 g6 h3 g7 c2 Nd2 a2 Nb3 h2 Be3 Nc6 b8B c1Q b7 Nh6 g8B Qd1 Bh7 Ne7 Bc2 Nhf5 Qa6 Kh4 Be2 f1Q Qc6 f2 Bf3 Nd5 Bc7 Be7 b8N Ba6 d8R Rh5 Kd7 Be2 e6 Rh6 Kc8 Nc3 d7 Qd4 Bcf4 Bd6 e7 Nd1 e8N Ra5 Rb1 a1Q Nf6 Qac3 Ng4 Ra1 Rb2 Rc1 Re8 Rb1 Re7 Ra1 d8Q Rc1 Qh8 Rb1 Bd5 Bf3 Rf7 Qfc4 Rd7 f1Q Nf2 Bh5 Bf3 Rc1 Ra2 Qfe2 Ra8 Qf1 Ngh3 Qfd3 Rg1 h1Q Re1 Qhf1 Nh1 Q3e4 Ng1 Qa6+ Rb7 Qfc4 Re2 Qe7 Rd2 Qh7 Rd3 Bc5 Qe6 Nd6+ Kd8 Rb1 Rb4 Nb7+ Kc8 Bd6+ Nc6 Nf2 Rd2 Rf1 Rd3 Bc5 Nb8 Nd1 Rd2 Qdg7 Rd5 Qgd4 Rd7 Bd6+
7B/1b2N1rq/2r1N2B/8/K5Qr/N3PrbR/knQpQ2r/q1B1RBnN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 Kc2 a5 Kb3 d5 h4 f5 c5 g5 e3 f4 c6 d3 b6 f3 b7 g4 c7 f2 h6 d2 h5 a4+ Ka2 g3 b4 a3 Kb3 a2 h7 d4 h6 Kd5 b5 g2 e6 d3 e7 Nc6 e8Q Nge7 b8Q Na5+ Ka4 Kc4 b6 Nd5 b7 Bd6 Qeh5 Bg3 Qh4+ Nf4 Rh3 Ra6 Ne2 g1R Qg4 Qe7 Qa8 Qf7 b8N Bb7 c8N Rc6 Nd7 Rg2 Nc5 Rh2 Qe1 d1R Ne6 d2 Ne7 Rg8 h8B Qh7 Qc8 Rg7 N2d4+ Ne2 Na3+ Kc3 Ndf5 Ng1 Qee2 Nc4 Rb1 a1Q Qc7 Bf4 Ng3 Be5 Nh1 Nb2+ Ka5 Kb3 Kb5 Qf5 h7 Ka2 Kb4 Bg3 Qc8 Rg6 Bg7 Qf7 Bh6 Rg7 h8B Qh5 Bg2 f1R Qc7 Rf3 Bf1 Nc4 Ka4 Qf5 Qc8 Qh7 Bb2 Rc1 Qc7 Rc3 Re1 Rd3 Bc1 Rd4 Qh5 Rh4 Qg4 Rb6 Qc5 Rd6 Qcf5 Rc6 Qc2+ Nb2+
2N2b2/Nrq2kNR/2Rb4/1BB2b1r/1N2Bp2/1n1KP3/1qQ1Bb1R/3b1Qn1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 a5 b4 f5 d4 c5 Kd2 h5 g6 h4 g5 f3 e3 h3 d6 f2 g7 a4 b6 a3 g6 h2 d5 f4 b5 a2 b7 c4 b6 c3+ Kd3 c2 d7+ Ke7 d6+ Kf6 Nd2 Qe8 d8R Nd7 b8Q Ke6 b7 Ra4 Qc7 Rc4 b8N Ra4 Nc6 Ne7 g8B+ Kf6 g7 Ba6+ Nc4 Nd5 Bh7 Rb4 g8B Qe5 Nh3 Bc8 Be4 Rh5 Be2 f1B Nf2 Nc3 Na7 Rb7 Ba3 c1B Bc5 Ba3 Rc1 a1B Nb6 Bh3 Qe1 Bf5 Bc4 Kg6 Bb5 Kf7 Qf1 Bg4 Rg1 h1Q Rg2 Qh2 Re8 Qg7 Re6 B1b2 Rh6 Bb4 Rh7 B2a3 Kc4 Bf3 Nd3 Ba5 Nb4 Bg4 B2f3 Ne2 Kd3 Ng1 Ra2 Qb2 Be2 Be6 Qc6 Bb3 Rc3 Bd1 Rc4 Nb8 d7 Bd6 Qc7 Nc6 Rc1 Nd4 d8N+ Kg8 Rc3 Bf5 Nbc8 Nb3 Ne6 Qe7 Ng7 Kf7 Bd4 Qd7 Rc6 Qe7 Bc5 Qd7 Nc2 Be1 Nb4 Bf2 Qa5 Qc7 Qa4 Qb1+ Rc2 Qb2 Rd2 Na5 Qc2 Nb3 Bf3 Bg3 Rh2 Bf2 Be2 Qa1 Bb6 Be5 Nd5 Bf8 Nb4 Bed6 Bc5 Qb2
RKb5/1n3kn1/q6B/1Nr4R/1bnBPBn1/r5n1/RRqp2N1/1BQQ1Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kg3 d5 Kf4 a5 c4 d3 e4 d4 h4 d2 b4 a4 h6 a3 h7 a2 b6 d3 b7 g6 h5 Bd6 h6 Qb6 c5 Bc7 c6 Ke7 b5 Ra4 Na3 Na6 b8B Nc5 Ne2 Kf7 Rh5 Qa6 b6 Ne7 b7 Bd6 Nb5 Ra3 c7 Rd8 h8R g5+ Kg3 g4 Kf4 g3 h7 g2 Rg8 g1N h8B Be6 c8Q Nf3 Bc7 Qc6 b8R Nh2 Ra8 Re8 Rg2 Nb7 Rb1 a1N Rb2 Ng4 Bb8 Bd7 Ra2 Bb4 e6+ Kg6 Qc7 Bc8 Bd4 Qa6 Qc6 Nb3 Bbe5 Ng8 e7+ Nf6 Qcc2 Rd8 e8Q+ Kg7 Bd6 N3a5 Qf8+ Kg6 B6e5 Ne8 Bg7 Rd7 Bh6 Rc7 Rgh2 Ng7 Rf2 Ne3 Ke5 f4 Qc3 f3 Nf4+ Kh7 Qf5+ Kg8 Ng2 Rc6 Qh3 Kf7 Be2 Rc4 Qhh1 Rc6 Qhf1 Ng4+ Kd5 Rc4 Qa1 Rc2 Rb2 Nc4 Qb1 Qa5 Kc6 Qa6+ Kc7 Rcc3 Kb8 Rc2 Qde1 d1Q Bcf4 Rcc3 Qc1 Qc2 Qed1 d2 Bd3 Be6 Re2 f2 Re3 Bc8 Rg3 Qca4 Bb1 Qc2 Qg1 f1N Rgh3 Nfe3 Qgf1 Nef5 Re3 Ng3 Rd3 Nce3 Ra2 Rc5 Rb3 Nc4 Rbb2 Ra4 Rg5 Ra5 Rh5 Ra3
1BKN1b1R/BRbNNqb1/4b3/1R3b2/pBP3Q1/7r/2nqQ1Nn/1k2r2B w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 b4 d6 h4 g4 c4 a4 b6 g3 b7 e4 h6 e3 h5 e2 h7 e1B b5 d3 b6 d2 h6 g2 Nc3 Qe8 Rb1 Qd8 Nge2 g1B Rh5 Bd4 Bg2 Be5 Ba3 Nc6 b8B Be7 b7 Qf8 Bb4 Qe8 Bh1 Nd4 Ba7 Bg3 b8B Nc2 Rg5 Qf7+ Kc6 Bd4 Kc7 d5 Qg1 Bh2 Qg4 d1Q Rg7 Bf8+ Kd8 Qe6 Rb7 Qd2 Rb3 Be5 Rb5 d4 Nd5+ Kf7 f6 d3 Ne7 Qf5 Bac5 Ke6 f7 Beg7 Bca7 Kf6 Rb2 Be6 Rb1 Qh5 f5 Bd6 Rb7 Ke5 Nf4 Nf6 Ng2 Qg6 Qg3+ Ke4 Qg4+ Qf4 Rb5 d2 Rb2 Kd3 Rb1 Nh5 f6 d1B Rb2 Qd2 Rb7 Bd5 Kc8 Ng3 Rb1 Nf1 Rb2 Rg8 h8Q Nh2 h7 Bc7 Rb1 B1f3 Rb2 Bfe4 Rb1 Bh6 Qg7 Qh5 h8R Bh7 Qe6 Bf5 Qg4 Bfg7+ f8N Qf7 Bd6 Kc3 R1b5 Kd3 Ba3 Kc3 Bb4+ Kb2 Qe2 Kb1 Qd7 Qh5 f7 Bde6 Nc6 Qf3 Nd8 Qf1 Ng6 Re8 f8N Qf2 Nh7 Bf8 Nf6 Bhg7 Ne7 Qf3 Ne4 Qh5 Nc5 Qf7 Bb6 Ra6 B6a7 Rd6 Qe3 Rd3 Qe2 Bd5 Qde6 Rb3 Nd7 Rh3 Qg6 Bde6 Qgg4 Bd5 Ng8 Ree3 Ne7 Bde6 Qd3 Re1 Qde4 Qg5 Qee2 Qd2
2RB4/NQ2qN1b/3p3P/2R2nrQ/q1RQ1Nb1/brN4R/3bB2K/b2nk3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 b4 Kf6 c4 Ke5 f4+ Ke4 Kf2 e5 Kg3 g5 c5 a5 b6 g4 b7 d6 h6 d3 c6 a4 h5 d2 h7 Ke3 f6 e4 f5 a3 b5 a2 h6 Nd7 b8N Qe7 c7 Bg7 b6 Ba6 c8R Ne5 f7 Nd3 f8Q Nf2 f6 Bd3 f7 Ra3 b7 Rb3 Rc4 Bb2 Nc3 Ba3 Nh3 Bc2 Kg2 g3 Qh5 Nd1 Qg7 Bb1 Kg1 g2 f8R Bd3 Rb1 a1B Nf4 Bc2 Kh2 Kf2 Rb2 e3 Rfc8 e2 Qd4+ Ke1 Nc6 Be4 b8Q g1Q+ Kh3 Qg6 Rc2 Qge8 Na7 Qa4 Qb7 Qc7 Rc5 Nb2 Ng6 d1B Bg5 Qd8 Nf4 Ne7 Rh2 Rg8 h8N Qc7 Nf7 Bh7 Rh1 Nf5 Bd8 Qe7 Rh2 Rb4 Na2 Rg5 R2c4 Rb3+ Nc3 Bc2 R8c7 Bd3 R7c6 Nd1 Rc8 Be4 Rh1 Bf3 Rh2 Bg4+ Kg2 Qee8 Rh3 Qe3 Kh2 Qe7 Qd3 Kf2 Qdd5 e1B Be2 Bd2 Qd4+ Ke1
Q1bk4/1QR1p3/1Qbrn1Bq/1NQ4R/2nbP1q1/1NbN2b1/1R1R1r2/K5B1 w - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 d4 f5 Kd2 a5 Kc2 c5 b4 g3 Kb2 f4 h4 f3 b6 f2 b7 g2 g6 a4 d6 c4 h5 Bg4 d5 Ra7 h6 Nc6 b8R Rb7 g7 Bh5 d7+ Kf7 d6 Na5 b5 Nf6 h7 Ng8 b6 Qe8 d8Q Bg4 d7 Nh6 Nc3 Nf5 Qc2 Nd4 Nf3 g1Q Nd2 a3+ Ka2 Rc7 b7 Rc6 g8N Rb6 Nf6 Bg7 Nh5 Rf8 h8Q Re6 Bg2 f1B Be4 Bg2 Nf4 Bf6 Kb1 a2+ Kb2 Be5 Rh5 Rc6 Rb1 a1B+ Ka2 Bf6 Nb5 c3 Qb6 Qc8 d8R Qe3 Rd6 Ke8 Nb3 Bg7 Rdd5 Rd6 Bg6+ Kd7 Ra8 Be6 Qf5 c2 b8Q Bc3 Rb2 Nc4 Ka1 Be4 Bd2 c1B Be1 B1d2 Bf2 Be1 Bg1 Bg3 Qg5 Nf5 Rd3 Bc6 Rd2 Nd4 Nd3 Rf2 Qgc5 Qh6 e4 Bf6 Bf7 Qg8 Ra3 Qg4 Bg6 Nf5 Qhg8 Ng7 Qgf8 Bfd4 Q8a7+ Bb7 Qfa8 Bd5 Q7b8 Bc8 Ra7+ Bdb7 Qa5 Ne6 Qab6 Rf7 Q8c7+ Ke8 Qcb8 Bc6 Rc7 Kd8 Qb8b7 Rf2
br1q3r/R1p1R3/Bn3B1k/K3Q1NP/1q1BR1b1/4RNbb/Qb5Q/2nQ4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 d4 f5 Kd2 Kf7 Kc3 g5 e4 Kg7 b4 f3 e5 a4 e6 f4 h6+ Kh7 b6 a3 e7 f2 e8R a2 b5 g4 b7 f3 h5 g3 d6 g2 Kb4 Ra6 b6 Bf5 d5 Qg5 Re7+ Qg7 d7 Ra5 d8B Bg6 d6 Ra8 d7 Nf6 Ba6 f1B Rh4 f2 Ka5 Be4 Nd2 Ng4 Ndf3 Ne5 Bb2 Be2 Bd4 f1B Nh3 g1Q Rg4 Bd5 Re4 Nd3 Re3 Qg4 Nhg5+ Kg8 R7e4 Bd6 B8f6 Qf8 d8R Nd7 b8Q Nc1 b7 Bh3 Rde8 Nb6 R8e7 Bg3 Qa7 Qd8 b8Q Bc6 Qbb7 Rb8 h7+ Kf8 Qc8 Ba8 Qd7 Qh4 Qc2 Bd1 Qh2 Be2 Qa4 Qg4 Qd1 Qh4 Rb1 a1B Rbb3 Bb2 Ra3 Rg8 h8Q Qf4 Qh7 Rh8 Qf5 Qfd6 Qe5 Kg8 Nf7 Kh7 N7g5+ Kh6 Ng1 Beg4 N1f3 Bc6 Qa8 Bcd7 Qad5 Bc6 Qa2 Ba8 Rab3 Na4 Rb7 Nb6 Ra7 Qb4+
1Q3bn1/1P6/B2B2B1/1N2pQ2/1R1b1n2/RQqbr2R/NrR4q/k1BbKb2 w - - 0 1 illegal: No possible last move
8/N2r1N1R/1n1bQ1q1/K1r1Qb2/1n1R3N/1qB1RB1k/NPpqB3/3n1Rn1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 d4 Kf6 Kd2 c5 Kc3 a5 g4 h5 d6 e5 d5 c4 b6 a4 Kb4 c3 b7 e4 g5+ Kg7 g6 Kf6 g7 h3 Qe2 h2 Nf3 h4 Ra3 e3 Bd2 c2 Nc3 h3 Na2 Ne7 g8B Rh5 d7 Ra7 d6 Na6+ Kb5 Qe8 b8Q Qg6 d8N Nd5 d7 Nb6 Nc6 Nb4 d8N Rd7 Bd5 Bd6 Nh4 Rg5 Qg4 e2 Re3 e1N Ka5 a3 Be2 Nf3 Na7 Ng1 Nf7 Rh5 Bdf3 Rg5 Nc1 a2 Be1 a1Q+ Na2 Qd1 Bc3+ Qd4 Qc7 Kg7 Qb8 Kh7 Qc7 Qd2 Qc5 Rh5 f6 Re5 f5 Rd5 Nh8 Kh6 f7 Re5 Qe4 Kg5 f8R Rd5 Qb5 Rc5 Qe6 Kf4 f6 Kg3 f7 Rb7 Qe7 Bf5 Rd8 Rd7 Bc4 Ne2 Rf1 h1N f8R h2 Qe6 Kh3 Rf7 Ng1 Rh7 Nf2 Nf7 h1Q Bd3 Nd1 Bde2 Rc8 Qbe5 Qhg2 Qe8 Q2g4 Q8e6 Qc4 Rg8 Qb3 Rgg7 Qf6 Rg4 Qg6 Rd4 Rc5+
1k5r/2rnnQR1/Q3rr1q/1qB4R/1NN2nQK/2Pb1R2/3b1QpR/NB6 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 d5 Kf2 Kd7 Kg3 Kc7 h4 a5 b4 e5 c3 g5 b6+ Kb7 b5 d3 f6 d2 f7 d4 f5 a4 f6 d3 h6 a3 h5 g4 h7 a2 h6 e4 Nf3 e3 Rh5 e2 Ne1 Qd4 Na3 Na6 Kh4 Nc5 Nc4 Nd7 Nc2 e1N Ba3 g3+ Qg4 d1R Bc5 d2 Bd3 Bg7 f8Q g2 f7 Kb8 b7 Kc7 b8N Ba6 b6+ Kb7 Nc6 Qe3 N6b4 Rc8 Qe8 Rb1 f8R d1Q Rf3 Qde2 Qf7 Kb8 b7 Ne7 Bf5 Rd1 Rb1 Qe6 Na1 Rc7 Rb2 Qd6 Bb1 Nd3 Rd2 Nf4 Rdd3 Rf8 h8R Re1 h7 Bh6 Rdd5 Qd3 Rdg5 Re6 Rg7 Rf6 Rhg8 Qb6 h8Q Qd2 Qh7 Qb5 Rh8 Qd6 Qhg6 Re8 Nb3 a1R Q6f5 Ra2 Na1 Re2 Qc2 Ree6 Qf2 Nd3 Rhh7 Bd2 Rh8 Nf4 R8h6 Rh8 Rhh7 Rcc8 R7h6 Kc7 b8Q+ Kd8 Re3 Rg6 Nb6 Qa4 Rf5 Qd5 Kg3 Rgf6 Qb7 Rc7 Rd3 Bc4 Qa6 Qb5 Rf3 Be2 Rh3 Bd3 Rfh5 Qg5 Nc4 Qg6 Kh4 Qh6 Qa2 Kc8 Rh2 Kb7 Qa6+ Kb8
7K/b1kr1Bn1/Bn1q1r2/1QN1R1n1/bnq1QR2/p7/2NP1BB1/1b1R2NR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Kg4 c5 Kh5 f5 b4 h6 Kg6 c4 e4 a4 g4 f3 d6 f4 b6 h5 b5 f2 e5 h4 b7 h3 b6 h2 e6+ Kc6 d7 f3 e7 c3 e8R c2 Ba6 f1B Qe1 f2 Qe4+ Kd6 Bb2 c1N Na3 Qc7 d8N Nh6 Re5 Bd7 Bd4 Ra7 Nc2 a3 Ne6 Nf5 Nc5 Na2 Rd1 Nb4 Kf7 Be7 g6 Ba4 g5 Nd7 b8R Rh6 Kg8 Bd3 b7 f1Q g7 Nb6 Rf8 Rf6 g6 Qb8 Bf2 Kc7 Kh7 Qd8 g8B Qd6 Bb3 Ng7 Bf7 Qe2 Kh8 Qg4 Ne3 Bb1 Nc2 Qe2 Bd5 Qc4 Rf7 Ne6 g7 Ng5 Rf8 Bd8 g8B Be7 Nf3 Bd8 Bgf7 Be7 Rhe1 h1N Ng1 Ng3 Bc6 Nf5 Rf1 Qd7 Rfe1 Ng7 Rf1 Kd6 b8Q+ Qc7 Qe8 Qb8 Bcd5 Kc7 Qb5 Rb7 Nf3 Qd8 Rh1 Qd6 Ng1 Rb8 Qf5 Rd8 Bg2 Rd7 Qe4 Re6 Re8 Bf6 Rf5 Bd4 Rf4 Rf6 Re5 N6d5 Nd3 Ba7 Nc5 Nb6
3n2N1/b5Q1/r3bnnq/1rNQ4/2N1R1Rp/2BQBqBk/BQ5P/q4n1K w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 c4 Kf7 f4 Kg6 Kf2 Kh5 Kg2 Kh4 e4 a5 f5 g5 e6 h5 e5 d5 b6 g3 f6 a4 c6 d4 c7 g4 e7 a3 e8N a2 b7 d3 e6 d2 c5 Ne7 c6 Ng6 e7 Bf5 c8Q Bh6 f7 Qd3 f8B Bg7 c7 Qd4 Ne2 Na6 b8B Nc5 Nf6 Be6 e8Q Nd7 Qcd8 Qd3 c8Q Ra6 Ng8+ Nf6 Qcc7 Qf3+ Kg1 g2 Qd5 Rh6 Ng3 Kh3 Bb4 h4 Bc3 Rh5 Qeb5 Rg5 Qde2 d1N Nd2 Ne3 Qb2 Bf8 Qcb7 Bc5 Qed3 Ba7 Qg7 Re5 Rb1 a1Q Nc4 Rh5 Be2 Nf1+ Be3 Rg5 Re1 Rf5 Qd8 Rb5 Ne4 Qc1 Nc5 Qd2 Bed4 Qh6 Bbe5 Nh8 Bb8 Nf7 Qd5 Nd8 Be3 Qe4 Kf2 g1N Bg3 Nf3 Rg1 Ne5 Rg2 Qf3+ Kg1 Ng6 Kh1 Rb4 Bd1 Rbb6 Bb3 Rb5 Bc7 g3 Ba2 Qe2 Rf2 Qd1 Rf4 Qe2 Rg4 g2+ Kg1 Qf3 Bg3 Rd6 Bed4 Ra6 Ree4 Qd1 Be3 Qb3 Kf2 g1Q+ Kf3 Qh1+ Kf2 Qf3+ Kg1 Qfd1 Kh1 Qa1 Qc6 Qbd1 Qcd5 Qf3+
nQQbN2n/3N1b1R/7b/rN2bqqB/1N2kPBB/r7/1Qp3K1/R2Bq3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 b4 Kd6 g4 e5 b6 a5 b7 h5 g6 c5 b5 a4 b6 e3 g5 a3 g7 h4 g6 e2 Nh3 e4 Bg5 c4 f4 a2 Kf2 e1Q+ Kg2 e3 Qb3 c3 Qb2 c2 Na3 e2 Nb5+ Kd7 d6 Ke6 d5+ Kf5 d7 Rh7 d6 Qf6 d8N Qe7 d7 Nh6 g8B Nf7 g7 Nh8 Nf7 Ke4 d8Q Na6 b8Q Nc7 b7 Be6 Qdc8 Ra3 Rh2 Rh5 Nfd6+ Ke3 Nf2 Bf7 Bh7 Na8 g8B Bh6 Bg6 Qd8 Ne8 h3+ Kh1 Qea5 Bh4 e1B Be2 Qg5 Nd3 Bb4 Bg4 Be7 Bd1 Bd8 Nb4 Qf5 Kg1 Ke4 Rh1 h2+ Kg2 Bd5 Be6 Bc4 Rb1 a1B Bgf7 Qg5+ Beg4 Qf5 Rc1 Rg5 Bh5 Bf7 Qa2 Be5 Ra1 Rg6 Qb2 Ra6 Qbc7 Ra7 b8N Ra6 Nd7 Qg5 Nd4 Qc5 Nb5 R6a5 Q7b8 Qf5 Rf1 Qe7 Rf3 Qeg5 Rh3 h1Q+ Kf2 Rb3 Bg3 Beg7 Bg6 Qe1+ Kg2 Be5 Rh1 Bf8 Rh7 Bfg7 Bh4 Rba3 Bh5 Bh6
q1Q2b2/2R2B1r/NbNR1b1B/1k1n3n/2Rp4/B2QBrb1/1qqP4/1R2K1Q1 w - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 d6 exf5 Ba6 a5 Bc8 a6 Bb7 axb7 Kf7 cxb5 Qd7 b6 Ke8 b5 Qd8 f4 Kd7 g4 e5 g5 c5 f6 a5 g6 h5 g7 e4 f7 h3 f5 h2 f6 a4 Ra3 d5 Qc2 h4 Nh3 e3 Ng1 c4 Nc3 e2 Nf3 h3 Na2 c3 Nd4 Qc7 Nc6 Rh7 Nab4 Na6 Qd3 c2 Rc3 a3 b8B a2 b7 a1B Rc4 Bd4 Ba3 c1B b6 Bcb2 Ba7 Qe5 b8B Nc7 b7 Bb6 Na6 Qd4 Rg1 h1Q Rg6 Qhe4 Bg2 h2 Bf3 Qc3 Bh5 Qee5 Rh6 Qc2 Rg6 Ne7 g8Q Ne6 Rg7 Qd4 Bf4 Rb8 Bg5 Nf4 Bh6 Re8 b8R h1Q+ Rg1 Ba1 Rc8 Qdb2 Bg6 Nh5 Rf1 Bg7 f8R Qe4 Rf7 Bf8 Rg7 Qh1 Bf7 Qe4 Rg4 Qg2 Rgd4 Qh1 Kf2 e1B+ Ke2 Rd8 Qg1 Bg3 Rb1 Re8 Bb8 Rd8 Bbf4 Qe4+ Be3 Re8 Rb4 Rd8 Rc7+ Kd6 Nab8 Kc5 Rbc4+ Kb5 Na6 Rd7 Bg6 Rd8 f7 Rd6 Kf1 Rf6+ Ke2 Rf2+ Ke1 Rf3+ Qf2 Bg7 f8Q Bf6 Qc8 Bg7 Nc5 Bf8 Bf7 Qb4 Na5 Bb2 Na6 Bc3 Qf1 Qbb2 Rd3 Bf6 Qe2 Nc6 Rdd4 Nb4 Qd3 Bf4 Qg1 Qe8 Qcg4 Qa8 Qc8 B4d6 Nc6 Bh2 Re4 d4 Re6 Nd5 Rd6 Bg3+
4B1rn/1q2N3/1n1q1q2/b1K4Q/2bp1B1R/R2NPrRN/r2kqQQR/7N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 c4 Ke6 h4 Kf5 b4 Ke4 e6 f5 b6 d5 e7 a5 e8Q+ Ne7 h6 g5 h7 g4 h5 f4 c5 d3 h6 f3 c6 d2 b5 a4 b7 a3 b6 a2 c7 Ra3 Rh4 Kf4 Qh5 Ra8 Nh3+ Ke4 Qc2+ Kd4 Nc3 d1Q Ne4 Rg8 h8N Ra6 h7 Nd7 b8Q Ra8 b7 Qd2 Nf7 Ng6 h8R Bb4 Qa7+ Nb6 b8R Ba5 Ne5 Qd6 Nd3 Ba6 c8N Bc4 Ng3 Qd1 Rh7 Nh8 Bf4 Qb1 Nh1 g3+ Kg1 g2 Kf2 g1R Ne7 R8g3 Rg8 Qb5 Qb7 Qa6 Qc6 Qb7 Qd2 Ra7 Qe3+ Kc3 Qec5 Na8 Ke3 Nb6 Rgg4 Kc2 Kd4 f2 e3 Rf3 Rg3 Kd2 Qb4+ Kc2 Qe1 Ra8 Be2 f1Q Qf2 Kd2 Bd1+ Qe2 Ba4 Rg8 Rh6 Rg2 Bb5 Qf6+ Kc5 d4 Qe4 Rh2 Be8 Rg2 Rb1 a1Q Rb3 Qa4 Ra3 Qad7 Rhg6 Rg1 R3g4 Ra1 Rg2 Ra2 Rh2 Rg3 Qeg2 Rf3 Rg3 Qdd6+
2Nk1q2/Nb2b2r/2q3bn/1R2nnNB/3p2QQ/P1Bn2KB/2Q2R1B/6Qr w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 e5 Kf2 g5 c4 d5 h4 b5 c6 b3 c7 e4 c5 e3+ Kg3 e2 f6 e1N f5 b2 f7+ Kd7 a3 g4 c6+ Ke7 h6 b4 h7 b3 f6+ Ke6 h5 Qe7 h6 Bb7 c8B+ Nd7 c7 Ra5 Rh2 Nc2 Bf4 Nd4 Nf3 Qc5 Nc3 b1B Nb5 b2 Rf2 Bd3 Qc2 b1N Be2 Nd2 Na7 Qc6 Rb1 Be7 f8Q Nc4 f7 Nb2 Qg7 Bg6 f8Q Nd3 Rb5 Ra6 Bd6 Ra4 Qf4 Nf5+ Kg2 g3 Qg4 Rc4 Q7d4 Kf7 Ng5+ Ke8 Kh3 g2 Bh2 g1Q Qa1 Qh1 Qag1 N7e5 Bd1 Nd6 Kg3 Re4 Be6 Re1 c8N Kd8 Bf5 Qe4 Bd7 Qf5 Be6 Qf8 Bf5 Nf6 Be6 Rg8 h8Q Rg7 h7 Ng8 Be2 Rf7 Qf6 Rc1 h8B Rh7 Qff4 Nh6 Qh4 Ndc4 Bh5 Ne3 Bh3 Re1 Qfg4 Nef5+ Kg2 Nc4 Bb2 Nce5 Bc3 d4+ Rf3 Ne3+ Kg3 Rf1 Rf2 Rd1 Qg2 Rh1 Qg1 Nef5+
qR1R1B1k/3RNQ1r/b1n1NKb1/2Rq1r1p/q1N3Q1/P2B3b/1Q6/1N2b1n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 Kg7 Kf4 h5 Ke5 b5 d4 c5 f4 c4 g4 c3 f6+ Kh7 g6+ Kh6 g7 Kh7 a3 b3 d6 e6 f7 c2 g5 b4 d7 b2 f5 b3 d5 Ra7 d6 Ba6 f6 Ne7 g8N Nd5 Ne7 Nf4 Qe2 Nh3 Nf3 Ng1 Nfd2 Ra8 Nc4 Nc6+ Kf4 e5+ Kf5 Bh6 f8R e4 f7 e3 g6+ Kg7 Qd2 Rh7 Bd3 e2 Rh3 Qb8 d8N e1Q d7 Qd1 Qh2 Bd2 Ne6+ Kh6 Re3 Be1 d8R Qb4 g7 Qa4 Bd2 c1Q g8Q Rb8 Rfe8 Rb5+ Kf6 Qc3+ Qe5 Qca5 Bb4 Rc5 Qg4 Rb5 Be2 Qd5 Rd3 Rc5 Rd7 Qd8 Rd4 Qa8 Bd3 Ra5 Rb8 Rc5 Nbd2 b1B Ra2 Rb5 Rc2 b2 Rc3 Bc2 Nb1 Bd1 Bd6 Bf3 Qe2 Bg2 Bb4 Bh3 f8Q+ Rg7 Qf7 Rh7 Ncd2 Ra5 Rc5 Rb5 Nc4 Ra5 Nc3 b1B Qb2 Rb5 Be2 Bg6 Bd3 Rg7 Nb1 Kh7 Bd2 Ra5 Bh6 Rb5 Nc8 Kh8 Ne7+ Rg8 Bf8 Rg7 Rd6 Rh7 Rdd8 Qh1 R4d6 Qd5 R6d7 Rb4 Ne3 Re4 Nc4 Re5 Ng7 Rg5 Ne6 Rf5+
3b2q1/1BqK3k/n2Q1B1q/3RB2p/1Q1n2rP/1N1R1Nnb/nR2Q1B1/3r1R2 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 Kf7 Ke3 Kg6 Kd4 d5 h4 a5 f4 h5 c4 g3 e4 g2 e6 a4 Ke5 d4 f5+ Kh7 f6 g5 b6 g4 c6 g3 b7 a3 f7 a2 c5 d3 e7 d2 e8R Nh6 c7 Kg7 c6 Nf5 Rh3 Ra4 Bb2 Ne3 Nf3 g1N Bg2 Bb4 f8Q+ Kh7 Qc5 Qd3 Rd8 Qc4 Kd6 Ra5 e5 Na6 b8B Rg8 e6 Ne2 e7 Nf1 e8Q Nd4 Qee2 Rg4 Qb3 d1N Nbd2 Bd7 c8R Nc3 c7 Ra3 Rd1 Ba5 Qbb4 a1Q Nb3 Qc1 Rd3 Qg5 Rh2 Qh6+ Ke7 Bf5 Rd5 Ra1 Rf8 Rd1 c8B Na2 Bb7 Bd8+ Ke8 Be6 Be5 Qc3 Qd6 Qc7 Bc1 Bf5 Bg5 Bc8 Rf4 Be6 Bgf6 Bc8 Bh3 g2 Rf5 g1Q Bg2 Rg7 Rf4 Bh3 Rf5 Rg4 Rf4 Qc4 Kd7 Ng3 Rh1 Qe3 Rf1 Qec1 Re4 Qcg5 Ree3 Qgg6 Rd2 Qc5 Rb2 Qg8 Rd3 Qc7+
B2R1Br1/1nb5/1nQ1K1Q1/N5P1/r1R2N1N/b1B1rB1R/1p1rq3/Nb3k1q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 b4 d6 b2 Kd5 h4 f6 Kg6 f7 b3 a5 c4 f5+ Kh7 f6 Kg6 d7 c3 a6 h3 a7 c2 Ke6 h2 d5 e4 d6 e3 Ra4 e2 Nf3 e1R+ Be2 Bb7 Qd5 Ne7 Rc4 Nf5 Na3 b1R Qc6 b2 Bd2 c1B Nc2 Rg8 Bc3 Bf4 Na1 Qa5 d8N Qa6 d7 Ba3 f8R Bc7 f7 Nd6 Re8 Red1 f8B Rd2 Bd1 Bc8 Nb7 Qb5 Be2 Re1 Na5 Nb7 Rd8 Qa6 Rf1 h1Q Nh4+ Kh7 Rf3 Qb5 Ng2 Kg6 Rh3 Qa6 Re4 Qd3 Bf3 Re3 Nh4+ Kh7 Be7 Qe2 g6+ Kh6 Bf8+ Kg5 g7 Qed1 Re5+ Kf4 g5 Qde1 Kf6 Qe2 Rc5 Red3 Rc4+ Ke3 Kf7 Kf2 Kf6 Kf1 Kf7 Rh8 g8Q Re3 Qgg6 Rg8 Kf6 Na6 Kf5 Nac5 Kf6 Na4 Kf7 Rb8 a8B Nb6 Re8 Rc2 d8N Bf5 Ne6 Rd2 Nf4 Bb1 Kf6 Rbd8 Kf7 R8d5 Rd8 Rb5 Kf6 Rb4 Kf7 Ra4 Kf6 Be4 Ke6 Bb1+
b2n1kB1/Bn5r/QN2Q3/r1P2bKb/1q1R4/4qN2/Rr2RBQp/bR5B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 e5 Kg4 d5 b4 e4 f4 e3 c4 d3 c5 d4 g6 e2 b6 e1Q g7 d2 b5 a4 b7 a3 b6 d3 Qe2+ Be6 Nc3 d1B Nd5 h6 Rh4 d2 Nf3 a2 Qa6 Bf7 f6 h5+ Kg5 Be7 g4 Qe4 f5 Nh6 g8Q+ Bf8 Bg2 Qe1 Bh1 Bg6 Qe6+ Qe7 Bb2 Bh7 Bd4 Nc6 b8B Nd8 b7 Bg7 Ba7 Kf8 Bf2 Rb8 Nb6 Ba4 Rb1 a1R Rb2 d1B Ra2 Qe8 f7 Qb4 Rh2 h4 Re2 Ra8 b8R Nb7 Rd8 h3 Rd4 Ra3 Rg2 h2 Rg1 Bdc2 Rb1 Bd1 Ra2 Be5 Re2 Bc6 Ra2 Kg7 f8R Rb3 Rf7+ Kg8 f6 Rb2 Re7+ Kf8 f7 Bf5 Qd5 Bg3 Re2 Rh7 Qe6 Bd6 Kh4 Bd5 g5 Be5 g6 Bh8 Qc6 Qe3 g7+ Ke7 g8B Kf8 Ne5 Bf3 Qe4 Bh5 Qg2 Bb3 Nf3 Bd5 Qc4 Bc6 Qe6 Bce4 Bb8 Ra3 Ba7 Ra5 Rdd1 Rb3 Ne1 Bfg6 Reb2 Nd6 Qc8+ Ke7 Qa6 Bgf5 Re2 Ba1 Nf3 Rb2 Rd3 Ba8+ Rd4 Ke6 f8Q+ Nhf7 Qh6+ Ke7 Qe6+ Kf8 Nc8 Nd8 Nb6 Qd3 Kg5 N6b7 Qg4 Qe4 Qg2 Qe3+
b1N2K1R/Q2bR2q/1nn5/bbp5/qQQB1kP1/2BB2N1/N2qr3/1r1Q2N1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 b4 c5 d4 a5 f4 e5 g4 h3 b6 h4 b7 a4 b5 a3 b6 h2 f6 a2 f5 h3 f7 Na6 b8Q+ Qc7 b7 Rh7 f6 Rg7 Be3 Bd7 Qa7 Rc8 b8Q Bb5 Kf5 e4 Nc3 Bc6 Nce2 Be8 Ng3 Rg6 Qb4 Bc6 Bd3 Bg7 f8N Nb8 f7 Re6 Ng6 Bb5 Ne7 Nc6 f8Q Rb8 Qf7 Nf6 Kg6 Nd7+ Kh7 Rb7 Kg8 Nb6 Qff1 Bh8 Kf8 Re5 Bd2 e3 Bc3 e2 Rb1 a1Q Nc8+ Kd7 d6 Ke6 d7 e1Q d8B Re2 Rc1 Qa4 Bf6 Qh7 Rc2 Qd2 d5+ Kd7 d6 Ke6 Bfd4 Bf6 d7 Bd8 Nh5 Bc7 d8N+ Kd5 Bc4+ Ke4 Qf7 Rb8 Qg8 Rb7 Ng3+ Kf4 Bd3 Rb8 Qgc4 Rb7 Nf3 Rb8 Re1 h1B Ng1 h2 Rb2 Be4 Rc2 h1B Rb2 Na5 Nc6 Bf5 Rb3 Bd7 Rb1 Rh2 Re7 Bd5 Nd8 Ba8 Nc6 Rb7 Rb2 Qc1 Rbe2 Qd2 R2e6 Re2 Rh6 Qg6 Rh8 Qh7 Qa3 Rb8 Nb4 Nc6 Qb2 Nd5 Na2 Ba5 Qbb1 Nb6 Qbb4 Nd5 Bb2 Ba6 Bbc3 Rb7 Qa3 Rb1 Qb2 Nb6 Qbb4 Bb5
1R1RnR2/2Q1Rb2/Q1Brq3/1p1B2Q1/2nkq2N/1Bn3br/KP5N/1n1q3B w - - 0 1 illegal: No proof kernel
Bn3b1B/4R1bN/q2r2r1/1pN4k/QB2R1R1/Pn1nBQ1K/5n2/Q1q1Q2b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 d4 e5 f4 g5 Kf2 b5 Kg3 c5 f6 b3 d6 b2 h6 Kg6 f5+ Kf7 d7 g4 h7 e4 h5 c4 d5 c3 h6 c2 d6 e3 a3 e2 Qe1 Qc7 d8R Qb6 d7 Ra7 Nc3 b1N Na4 Bb7 Nh3 Qd4 Rg1 Bc5 Bg2 Be4 Be3 c1Q Re8 Ra6 d8Q Nc3 Qa5 Bf8 Nc5 Nd1 Qa4 Qd6+ Kh4 Bc6 Re4 g3 Bh1 Ne7 Ng5+ Ke8 Bg2 Rg8 h8B Rg6 Nh7 Kf7 Kh3 Bb7 Rb1 Nec6 Rbb4 Na5 Re7+ Kg8 Bc6 g2 Rbe4 Qe6 Bd5 Rd6 Bc6 Nb3 Bd5 Ba6 Ba8 Bg7 Rf1 g1B Rff4 Bh2 Rg4 Be5 Ng5 Kf8 h7 Bb7 f7 Bh6 Bf6 Bg7 h8B Ba1 Bc3 Bh6 Bb4 Bag7 Qc3 e1N Qa1 Bd5 Ra7 Rd7 Nh7+ Ke7 Rb7 Nd3 Rc7 Bf8 Ra7 Bhg7 f6+ Kd8 Rb7 Rd6 Ra7 Qc8 Rae7 Qa6 Ra7 Be7 Rc4 Bc6 f8Q+ Be8 Qf7 Bc6 Qd5 Bb7 Qh1 Bc6 Qe1 Bh1 Nb7+ Kd7 f7 Ke6 Nc5+ Kf5 f8Q+ Bgf6 Qf7 Bf8 Qb7 B6g7 Qg2 Rg5 Qgg3 Kg6 Qf3 Kh5 Rce4 Rgg6 Rae7 N1f2+
1N2b1Qr/NkbRB2N/3nQB2/1p1qK1P1/q1B2R2/4R3/Nnq5/1r1r1qR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g6 Kd7 Ke2 e5 Ke3 b5 Ke4 c5 d4 Kc7 a4 h5 g4 b3 f4 c4 f6 h4 f7 b2 g7 c3 f5 h3 a5 h2 a6 c2 g5 Nc6 d6+ Kb8 d7 Ba3 f8N Qe8 d8N Rh4+ Qg4 Qe7 a7+ Kc7 d5 Qc5 d6+ Kb6 f6 Na5 d7 Nb7 f7 Ne7 g8Q Na5 Nf3 Nf5 Nc3 Rh8 Rg1 Qc4+ Nd4 Bd6 Ra3 Bc7 Nh7 b1Q f8B h1Q+ Rg2 Bb7+ Nc6 Rd8 a8R Qa4 Bb2 Nc4 Na2 c1Q+ Rd3 Qcd1 Be7 Qbc2 Qh3 Bc8 Na7 Kb7 Ndc6 Qdc1 Kd5 e4 Rg1 e3+ Ke6 e2 Re3 e1R Bc3 Nb2 Bc4 Qa1 Kf6 Nd6 Qhe6 Nf7 Be5 Qad1 Bc3 Qde2 Be5 Rb1 Bc3 Rf8 d8R Bd7 Rac8 Qhg2 Nb8 Bc6 Rd4 Qef1+ Rf4 Rd8 Bd4 Rd5 Rd8 Be8 Rd7 Nd6 Be5 Rdd1 Bc3 Ne4+ Kf5 Qgd2 Bcf6 Nd6+ Ke5 Qd5+
2R2q1r/5Q1B/Bn3QR1/P3B2R/rr1b2R1/1qN3N1/1Kbpnrk1/N2Nb3 w - - 0 1 illegal: No possible last move, all moves rejected
Q2Q1n2/RQ2QB2/nNbN1R1b/PRrNK3/1q6/3p4/qb4b1/Bk2r1rR w - - 0 1 illegal: No possible last move, all moves rejected
2K2kn1/QR5n/Q1b2B1P/r2rr1B1/4r2q/1p2QN2/N2BbN1b/3BRNq1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 b5 Kf3 g5 Ke4 e5 f4 c5 d4 g4 h4 g3 a4 c4 a5 b3 h6 g2 d6 b4 Kd5 e4 d7+ Kf7 a6 c3 h5 b2 h7 e3 h6 e2 f6 e1Q a7 c2 f5 b3 Be2 Bc5 Qd3 Ba3 Nf3 g1R Bd2 c1R Qe3 Bd6 Bd1 Qe8 d8N+ Kf8 f7 Rf1 Nc6 Be5 Nb4 Rc2 Na2 Ke7 f8N Nc6 f6+ Kf7 Nd7 Rc1 Nc5 Bg3 Nd3 Bd7 Nf2 Rc8 a8Q Nd8 Qa7 Kf8 f7 Bh2 Rg1 R1c2 Rg7 Ne6 Qa6 Qd8 Qa7 Bg1 Kd6 Qh4 d5 Ra8 Qa6 Bc6 Qea7 Nc5 Kc7 Bh2+ d6 Nd7 Qe3 Ra7+ Kc8 Ndf6 d7 Rc4 d8B Rd7 Qea7 Rd5 Qe3 Re4 Qea7 Ne8 B8g5 Nef6 Qe3 Rh1 Qea7 Qg1 Qe3 Ke7 f8B+ Ke8 Be7 Ree5 Bd8 Kf8 Rb7 Re4 Be1 Ra5 Nbd2 b1B Nf1 Bd3 Bd2 Bdb5 Bc2 Be2 Re1 Be5 Qea7 Rh3 Bd1 Bh2 Qe3 Rg3 Qea7 Rgg4 Qe3 Ree5 Qaa7 Rge4 Qa6 Nh5 Bdf6 Ke8 Be7 Ngf6 Rb5 Rg8 Rb8 Rg6 Bd8 Ng8 Rb4 Rd6 Qea7 Rdd5 h8Q Kf8 Rb7 Re7 Qhd4 R7e5 Qe3 Nhf6 Be7+ Ke8 Bd8 Nh7 Bdf6 Kf8
rNRR1br1/Q2q1B1n/2KB1npP/B3q3/2N2b1Q/1bNQ4/Q2r4/1bk1N3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 h4 c5 b4 a5 h6 a4 d6 f6 d7 g6 h7 a3 b6 f3 h5 f2 b7 a2 b5 Be7 d5 Qf8 d8B Kb4 b6 c4 h6 c3 d6 c2 Kd5 Kb3 e4 f5 d7 f4 e5 f3 e6 Ra7 Qd3+ Ka4 Nc3+ Kb3 Ba3 c1B Bd6 Bcg5 Rd1 Kb2 B8c7 a1R d8Q Nd7 b8N Qg7 b7 R1a2 Kc6 Qe5 Ba5 Bf8 e7 Ra8 e8N Bf4 Qh4 Ngf6 Be2 Rg8 h8Q f1B Rh2 f2 Nf3 Be3 Ne1 Nh7 Bf3 Bh3 Bd5 Bf4 Bf7 Be6 Q8f6 Bc4 Qe6 Ndf6 Rh3 f1Q Rh2+ Kb3 Rc2 Qh3 Qd2 Qg5 Bc5 Ra4 Na2 Bg7 Nd7 Ng4 b8Q+ Rb4 Qa7 Ba6 Nd6 Ngf6 Nb8 Bf8 Kc7 Qe5 Qd7 Be6 Rc4 Ra4 Nc3 Ra2 Kb6 Qd3 Bcb4 Qdf5 Rc8 Bd3 Kc6 Bb1 Qd5+ Kb2 Rd3 Ra4 Qa2+ Kc1 Bc5 Bb3 Qd8 Rd4 Nc4 Qe7 Qdd7 Qfe5 Qf5 Re4 Rdd8 Rd4 Bd6 Rd2 Qd3 Qd7+
3r1b1R/3kN1n1/2N1bP2/q1bBQb1R/rRBp4/1K1R3q/1n1B4/2q1NBQ1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 h5 f4 e5 b4 d5 g4 a5 c4 h4 Kc2 h3 c5 d3+ Kb3 d4 g6 d2 c6 h2 g5 e4 b6 e3 b5 e2 c7 e1Q b7 Bg7 f6 Qd6 f7+ Kd7 f8R Rh6 f5 Qf2 f6 Qe3+ Nc3 Na6 b8R Qc5 b6 Rh8 b7 Nb4 Nf3 Ne7 Ne1 Nf5 Ra3 Nd3 Nd5 Qh3 Ne7 Ra7 Rg8 Bf8 Nc6 Ng7 Qg4+ Qf5 Qg1 Bc5 Re8 Rg8 Re5 Rd8 Re8 Qe5 Rh8 d1Q+ Ka2 a4 Bd2 Nh5 g7 Nb2 g8B Ng7 g6 Qc1 Rd3 a3 Bc4 Ra4 Kb3 a2 Bd5 a1B Rh5 Ne6 g7 Qef5 g8B Ng7 Rh8 Bf8 Bc4 Qa5 Bge6+ Ke8 Bed5 Bf5 c8N Kd7 Rh5 Bc5 N8e7 Be6 Rc8 Bf5 b8Q Be6 Qgg3 Bf5 Rg1 h1B Qbe5 Be6 Rb8 Be4 Rb4 B4f5 Qg6 Nd1 Rg2 Bb2 Rh2 Ba3 Qg1 Nb2 Rh8 Qh6 Rh5 Qe3 Ng8 Bf8 Nge7 Qh3 Rb8 Bd6 Rb4 Bc5
kr1q3R/b1q1rN1R/BQ3p2/1Q1n4/RQ2RN2/1r2bnB1/N2nNPr1/4K3 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Nb8 d5 Bg7 Nc3 Kf8 Nb1 Bd7 e6 Bh6 exd7 Kg7 Qg4+ Kf6 Qd1 Bf8 b4 Ke5 g4 a5 b6 h5 g5 c5 b5 h3 b7 a4 g6 c4 b6 h4 g7 c3 Ba6 c2 Bh6 c1B Bg5 h2 Qg4 f6 Be3 a3 Qg6 a2 Bc4 h3 Qg2 Ra3 Bh6 Be3 Bg5 Rb3 Qg4 Nc6 b8R Nd4 b7 e6 Ba6 Ne7 g8R Nf3+ Kf1 Bh6 Bh4 Ba7 Nc3 Bhe3 Nge2 Qc7 Re1 a1N Ra8 Qd8 b8Q Qc7 Rg1 h1R d8N h2 d7 Kd6 Qb5 e5 Na2 e4 Ne6 Qd8 N6f4 Kc7 Rg7 Re8 Rh7 Rg8 Qh5 Rg2 Qc4+ Kb6 d6 Nd5 Bg3 Qc7 Rah8 Qd8 Bb5 Kb7 Ba6+ Ka8 Qc5 Rb8 Qb4 Qc7 d8N Nb3 Nf7 Qd8 Nec1 Nbd2+ Ke2 Qc7 d7 Qd8 Rgf1 Rhg1 Kd1 h1Q Nce2 Qc7 d8Q Qh2 Qdd6 Qd8 Qdb6 Rh1 Bh4 Qg3 Qe5 Qg7 Bg3 Rh3 Ng5 Qgc7 Nf7 Ne7 Qeb5 Nd5 Ng1 Bc5 Ke2 e3 Ra1 Bd4 Rfc1 Bc5 Rc4 Bd4 Kd1 Bc5 Re4 e2+ Kc2 e1R Nge2 Rb1 Kd3 Rb3+ Kc2 Be3+ Kd1 Nh2 Ke1 Rh5 Nac3 Re5 Ra4 Re7 Na2 Nhf3+
3N3B/1K2BBq1/2r1p3/B3nR1b/k1N1R3/rq1N1P1R/5r2/qQNQ1qbn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 c5 Ke4 h5 g4 a5 d4 c4 b4 h3 f6 c3 g5 h4 b6 a4 b7 a3 f3 a2 g6 h2 d6 Kc6 d5+ Kb6 b5 Ka5 f7 h3 g7 c2 b6 Qd7 Nd2 Ka4 Bc4 Rh5 Ne2 Kb4 Bb2 Qd8 d7 c1Q d6 Rh8 Kd5 Qc2 Nc1 Nc6 b8Q Ka4 b7 Qc7 d8N Bg4 d7 Nh6 g8R Ne5 Rg5 Qb3 Rf5 Bh5 Ne6 Ra7 d8N Nhg4 Nf4 Nf2 Nfd3 Rh6 Bd4 Bg7 f8B Rc6 Bc3 Bh6 Ba5 Be3 Re1 Bc5 Re4 h1Q Bg7 h2 Bh8 Raa6 Rb1 a1Q Rb2 Qc2 Ba2+ Bd4 Nc4 Qb3 Rbe2 Be3 Rh4 Bc5 Rh3 Qf1 Re4 h1R Qa7 Bb4 b8B Bc5 Qb7 Rh2 Qb6 Qa7 Bd6 Nh1 Qb8 Bg1 Ba3 Qc2 Qb1 Rf2 Bc5 Rab6 Ba3 Rb3 Bd6 Ra3 Bc5 Rh6 Bcb4 Qb3 Bd6 Nd7 Kc6 Q7d4 Kc7 Ne5 Bdb4 Qdc3 Kb7 Rc6 Re3 Nf7 Nce5 Qbc2 Re4 Qd4 Bd5 Qb3 Nc4 Qg7 Be6 Ne5 Bf7 Qc2 Bc5 e6 Be7 Qb3+
b1q2q2/3RB3/Bq1P1N2/1Rq3Q1/N4RRn/3n2Np/2K1Qb1r/k1n1B1rN w - - 0 1 illegal: No possible last move, all moves rejected
1N2br2/4nR1b/NQ1pk3/r1BR2B1/BQ1q1qbP/6K1/1n2rQN1/Q1b3N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 c4 f5 e4 g5 h4 a5 b4 f4 c5 d3 e6 a4 e5 d2 h6 g4 b6 f3 b7 d6 h7 a3 b5 a2 c6 Ra7 c7 Nd7 b8Q Bg7 b6 Nh6 b7 Bf8 Na3 Nb6 Kg3 f2 Nc2 Ra4 Ne1 Qe8 Bb5 f1B Ng2 Bd7 c8Q Be2 Qc6 Nc4 Qb6 Ra5 Ba4 Bd3 Ba3 Bc6 Bc5 Ng8 Qc2 d1B Qf2 Bdf3 Rf1 a1R Qa8 Rd1 b8N Qf7 Rh2 Rc1 Rd1 Bde4 Rd5 Nb2 Qb4 Bc2 Qa7+ Bd7 Qab6 Bh6 Rh3 Be8 Rh1 Kf8 e7+ Kg7 e6 Kf6 Rh2 Re1 Rh1 Bc1 Rh3 Bd7 e8Q Re2 e7 Ke6 Qf8 Qf5 e8N Ne7 Qg7 Rf8 h8B Qg5 Qgc3 Bh7 Bf6 Qh6 Bg5 Bb5 Nf6 Be8 Nfd7 Qf6 Rh1 Qf5 Na6 Qe4 Kh2 g3+ Kh3 Qf4 Ndb8 Bfh5 Qca3 Bd7 Qa1 Bhe8 Nf3 Bc8 Rhd1 Bcd7 Ng1 Bc8 Rf5 Bcd7 Rdd5 Bc8 Ne3 g2 Rf7 Bcd7 Nf3 g1Q Ng2 Qd1 Ng1 Qdd4 Rff5 Beg6 Rf7 Be8 Qc4 Bh5 Qcb4 Qfd2 Kh2 Bg4 Kg3 Q2f4+
1rqRR2B/bN3n1N/q1PQ4/7B/2b1p1rK/Brr1n1Q1/1b2NB2/1k1N1R2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 c4 Kf6 b4 Ke5 f4+ Ke4 Kf2 a5 Kg3 e5 f6 d5 f5 g5 b6 g4 h6 d3 f7 a4 c5 d4 c6 d2 b7 d3 h7 a3 f6 a2 h5 Be6 b5 Qd7 b6 Ra3 h6 Qc8 Kh4 g3 Ne2 Rc3 Ba3 Bg7 f8R g2 f7 g1B Rd8 Na6 f8N Nb4 b8B Nc2 b7 Bc4 Ba7 Ne3 b8Q Rb3 Qe1 d1R Qg3 d2 Qd6 Rc1 Bb6 d1R Nbc3+ Kf5 Rb1 a1Q Re8 Rd2 Nd1 Ke4 Rb2 Rd5 Rd2 Rcc3 Bh3 Bf2 Bg4 Rd4 Rf1 Bg1 Bh5 Bf2 Bac5 Qaa6 Ba7 Nf6 Rd3 Nfg4 Ba3 Rg8 h8N Bg1 h7 Nh6 Nhg6 Nf7 Ne7 Bf2 Nf5 Bh8 Qc5 Rd8 Qd6 Rg4+ Kh3 Bf6 h8B Bg1 Rd5 Bg7 Bd4 Kd3 Nh7 Kc2 Bb6 e4 Bd4 Ng2 Bf2 Kb1 Rd2 Ne3 Rd5 Rg6 Kh4 Be5 Qe6 Bd4 Nd6 Rg5 Nb7 Rg4+ Kh3 Ba7 Qed6 Bh2 Qf3 Be5 Qg3 Qc7 Rd3 Rb8 Rd5 Qc8 Rd3 Rg6+ Kh4 Rg5 Rd2 Bg7 Rd3 Rg4+ Kh3 Bf6 Qdf4 Rc2 Rdd8 Bb2 Qd6 Rg8+ Kh4 Rcc3 Qe7 Rg6 Qed6 Rg4+
2Nn1BQ1/1Q3BBn/N1Pb1RK1/Q1qb4/pB3r2/3br2k/b7/q1NR1qQ1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 Kg4 e5 c4 d5 b4 g5 h4 a5 f4 d3 c5 d2 b6 d4 h6 a4 Kh5 g4 b7 d3 c6 e4 b5 g3 b6 g2 h7 e3 Ne2 g1Q Nbc3 Qc7 Nd5+ Kf7 f6 Ke6 f7 Kf5 Ne7+ Ke6 f5+ Kf6 Bb2+ Qe5 Nc1 Na6 b8N e2 b7 Be6 Nc8 Bd6 f8B Nc7 Na6 e1Q b8Q Bd5 Qb7 Ne6 Ba3 Qb2 Bb4 Qc5 Qg4 Nd8 Qg1 Ke5 f6 Kf4 f7 d1B+ Kg6 d2 h5 Be2 h6 d1B Bg7 Nf6 f8B B1b3 Rh2 Rg8 h8Q Ba2 h7 Bb5 Bh3 Qf1 Be6 Ra7 Rb1 Qa1 Bf7 Ra8 Rh6 Rb8 Be7 Re8 Bef8 Re3 Qg8 Kf3 h8Q Nh7 Ne2 Ra8 Rd1 Ra7 Nc1 Kf4 Qa8 Rae7 Qb7 R7e4 Bb2 Kf3 Qe5 Rf4 Qf5 Bd3 Bbg7 Ne6 Kh5 Nd8 Rf6 Qg2 Kh6 Kg3 Qg5+ Kh3 Kh5 Bb5 Kg6 Qf1 Qe5 Be7 Qec7 Bd6 Qa5 Bd3+
6r1/1n3kNR/1BP2pNr/K2bBb1b/8/Q5NB/QRr3nb/NBq1R1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 d5 b4 g5 e4 a5 h4 a4 c4 d3 Kc3 f6 c5 d2 h6 a3 e6 g4 h5 g3 b6 a2 c6 g2 b5 Bd6 e7 Bh3 h7 Bh2 Kb4 d4 e5 d3 b7 Be6 b6 Bg3 h6 Bf7 Qb3 d1B Na3 d2 Nc2 Be1 Ne2 g1Q Bh3 Qg6 Ng3 Qd5 Qa3 Nd7 b8B Qg2 b7 Bh5 Bc7 Nb6 b8R+ Nc8 Bb2 Bd5 Bb6 Kf7 e8N Nge7 Ng7 d1B+ Kb5 Rg8 h8Q Qd2 h7 Bdg4 B2d4 Bf2 Rae1 Qc1 Na1 Nd6+ Kb4 Nef5 e6+ Ke7 Bb2 Bg1 Be5 Bh2 Rb7+ Kf8 e7+ Kf7 Rb8 Ne3 e8B+ Ke7 Bd7 Nb7 Bf5 Kf7 Bb1 Ra4+ Kb5 Rc4 Ka6 Ng2 Kb5 Nc5 Ka5 Rc2 Rb7+ Bd7 Rb8 Rc8 Qd8 Bf5 Qd6 Rg8 Qa4 Ne4 Qda3 Nd6 Qc4 Qgg5 Qcb3 Qge3 Qbb2 Qg1 h8N+ Ke7 Ng6+ Kf7 Nb3 a1R Qba2 Rc4 Bd3 Rb1 Na1 Rb3 Bb1 Rc2 Bc5 Rf3 Rb2 Rf4 Ba7 Rh4 Bb6 Nb7+ Ka6 Bf3 Bg4 Rh3 Nf1 Bg3 Kb5 Nd6+ Ka5 Rh5 Rh4 Bh2 Ng3 Be2 Bh3 Nb7+ Kb4 Rg5 Rh8 Rh5 Rh7 Rh6 Ka4 Bh5 Kb5 Nc5 Ka5 Nb7+
2Q5/RrNB1q2/PNB1n3/Qb1q4/2Nn3B/2Kr3q/QR3p2/b1k1rQrN w - - 0 1 illegal: No possible last move, all moves rejected
2N1q1r1/r4P1Q/2nBb1R1/qp1RN1Q1/2b3QB/3r2b1/1n1KbNB1/kB5Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 f6 b5 g6+ Ke8 g7 Kd7 a5 Kd6 f5 c4 a6 b3 f7 h4 a7 h3 f6 b2 g5 h2 g6 e4 Nc3 b1B Nf3 e3 Ne5 e2 Ne4+ Kc7 d6+ Kb6 d7 c3 d5 c2 d6 Rh6 Ba3 Ka5 Rg1 Ka4 Nf2 Kb3 Kd2 h1B Bg2 Ne7 g8B Ba2 g7 Nec6 Bh7 Na6 g8N Nab4 Ne7 Qa5 d8Q Be6 d7 Rg6 Nc8 Bd6 f8Q Rg8 f7 Nd3+ Bb4 Kb2 Qg5 c1R d8B Bb8 Qfh6 Rc3 Bd6 Bac4 Bhe4 Bc7 Qh7 Bb8 Rc1 Ka2 Bf5 Nb2 Bb1+ Ka1 Qa4+ Ra3+ Qb4 Rc3 Rcd1 Bc7 Bf1 Bf3 Bg2 Rb8 a8Q Rb7 B8e7 Ra7 Qb7 Bd3 Qbh4 Bdc4 Qh1 Bb8 Qg4 Bc7 Bh4 Bb8 Qe7 Bc7 Qc2 Bb8 Qeg5 e1Q+ Kc1 Qe4 Rd5 Bd1 Kd2 Bde2 Nf3 Qe5 Qh7 Qh8 Bb4 Bg3 Ne5 Rg7 Be7 Qe8 Bd6 Rg8 Qe3 Rb7 Qgf5 Ba2 Bf1 Bh2 Rg6 Ra7 Qeg5 Bac4 Bg2 Bg3 Qfg4 Rd3+
1q5k/1R2p2N/1br1Bb1B/2N2Q1b/2KB2RP/2q1b2q/n1RN2nB/1R1Qr3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 a5 f4 g5 b4 Kg7 h4 c5 d6 a4 f6+ Kh7 d7 a3 f5 g3 f7 g4 f6 g2 b6 g3 b5 a2 b7 Nh6 b6 Rg8 Bb2 Rg4 Bd4 Na6 b8B Bb7 Nf3 g1Q Rh2 g2 Ng5+ Kh8 Kc4 Nb4 Nh7 Qc8 d8R Bf3 b7 Re4 d3 Qe3 Nd2 g1B Bh3 Re5 Rb1 a1B Be6 Na2 Re2 Re4 Bh2 Nf5 b8R Ra6 R8b7 Qb8 Rg2 Bc3 Rc8 Bh5 Rg4 Qh3 Rcc7 Bh6 f8B Bg5 Bh6 Re1 f7+ Bf6 f8N Ba5 Nd7 Rc6 Qf3 Bb6 Qe4 Ng3 Qf5 Nf1 Kd5 c4 Nc5 c3 Kc4 c2 Nf3 c1Q+ Kb5 Ba5 Bc3 Re5 d4 Qg3 d5 Bd4 d6 Qd2 d7 Re1 Na6 Rc4 Ba1 Bab6 d8Q+ Be8+ Qd7 Bh5 Bc3 Bf2 Qd4 Qc2 Qd1 Ne3 Bd4 Ng2 Nd2 Be3 Rc6 Qh3 Rc5 Ra4 Rc3 Ra5+ Kc4 Qb2 Rc2 Rc5+ Kd3 Rc8 Nc5 Rc6 Kc4 Qc3+
kB6/1NQP3B/4p1r1/1n2N1Rq/3RnQ2/K3rbBb/QRRqB3/2rb2b1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 c5 Kc3 Kc7 Kb3 Kb7 g4 a5 f4 h5 g5 e6 d6 c4+ Ka3 c3 b4 a4 b6 h3 d5 h2 d7 h4 g6 h3 d6 c2 g7 Qe7 d8R Rh7 b5 Qe8 f6 Nh6 g8B Re7 f7 Ra5 f5 Nc6 f6 Ra7 Nd2 Bd7 Nc4 Nb4 Ra2 Ng4 Nf3 Nf2 Bf4 c1Q+ Rb2 Na2 Rg1 h1B Rg5 h2 Be2 Ne4 Nfe5 Qd2 Qc2 Nac3 Bh7 Bg2 Bg3 h1B Qb1 Bf3 Qa2 Bhg2 Rc2 Bg7 f8R Qh5 f7 Bh3 Rfe8 Bh8 f8Q Rg7 Qf4 Rg6 Rg8 Be8 Rd7+ Ka8 Na5 Rc7 Nb7 Rc5 Rb2 Rd5 Rc7 Rd3 d7 Re3 Rc4 Bg7 Rc2 Bf8+ Rb4 Bc5 Rf8 Bd4 Rbb2 Rd3 Rff5 Bg1 Rg4 Re3 Rfg5 Bfg2 Na5 Bf3 b7+ Ka7 b8B+ Ka8 b6 Bf7 Kb4 a3 Nb7 Be8 Qb1 a2 Ka3 a1R+ Qa2 Nc5 Qf8 Rc1 Rd4 N5e4 Qf4 Bf7 Nd6 Bfg2 Ba6 Qhe2 Bc7 Rf6 Bc4 Bh5 b7+ Ka7 Bd3 Rg6 Bb5 Qg4 Bc4 Qh4 Bb5 Bd1 Bf1 Rd3 Be2 Qh5 b8Q+ Ka6 Qd8 Ka7 Bb8+ Ka8 Nb7 Bf3 Qc8 Re3 Qc7 Nb5+
4k2K/1R1pN3/qr1Q1RnN/q2rbBn1/1n1P2BB/4r3/2Q1bB1n/3RQ1Q1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ke2 h5 Ke3 e5 Ke4 a5 c4 a4 f4 a3 d4 a2 g4 h3 f6 h4 Kf5 e4 Kg6 h2 f7+ Ke7 g5 e3 f5 e2 c6 e1N b6 h3 b7 Nf3 c5 Ra3 f6+ Ke6 c7 Nd2 c6 Bb4 Kg7 Ra4 f8B Bc5 f7 Nh6 g6 Qg5 Bd3 Ra3 Bf5+ Kd5 Nf3 Bb6 Qg1 Ba7 Nh4 Ng4 Be7 Ne5 f8Q Ne4 Be3 Rh6 Bf2 Na6 b8R Re3 Rb7 Nb4 Kg8 Qf6 g7 Bb8 Qe8 Rg6 Kh8 Ng5 Bg4 Qf5 Nc3+ Ke6 Rd1 a1Q Nd5 Qa6 Bd8+ Kd6 g8B Re6 Ne7 Ng6+ Kg7 Qfb5 Bh7 Qba5 Rf1 R6e5 Nhf5+ Ke6 Kg8 Rd5 Nh6+ Kf6 Rb5 Bb7 c8Q Be5 c7 Bc6 Rb7 Bb5 Qb8 Be2 Nhf5 Ke6 c8Q Kf6 Qc2 Ke6 Qg3 Kf6 Rhg1 h1N Nh6 h2 Qg2 Ng3 Qd6+ Ne6 Rd1 h1R Rgf1 Rh5 Qh1 Rb5 Qg1 Rb6 Be1+ Rf5 Rf3 Nf1 Bf2 Nf4 Kh8 Nh2 Qh5 Rg5 Qh3 Rh5 Qhf1 Rg5 Bhf5 Rh5 Qe1 Rg5 Nhg8+ Kf7+ Kh7 Ke8 Nh6 Rg7+ Kh8 Ng5 Nd5 Nge6 Bdh4 Ng5 Ne7 Rf7+ Kg8 Rf6 Kh8 Rb5 Bfg3 Rc5 Rf1 Rd5 Bf2 Ng6+ Kg8 Qc7 Bfg3 Rf7 Qdc6 Qd3 Be6 Na2 Rf4 Qb6 Bf2 Rf6 Kg7 Qda6 Rf5 Nf8 Kh8 Qba5 Qb6 Nb4 Qbc7 Bf4 Q7c5 Rg6 Rf7 Rf6 Bef5 Rb6 Rf6 Be5 Qd6 Ng6+
5b2/2Pr1N2/r3B1bR/N4Q1r/qQ1Q1B2/KQr3b1/2pN2kq/RB1nnN2 w - - 0 1 illegal: No proof kernel
2bR4/2P1K2q/1rNR2q1/3Qn1B1/bqQ2R2/2R1nNbk/p1N1BbN1/3B1r2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 c4 e4 b4 d6 g4 h3 g6+ Kf6 c5 e3 b6 h2 b7 d3 b5 a4 g5+ Ke7 g7 a3 f6+ Kd7 f5 e2 g6 e1B b6 d2 f7 a2 c6+ Ke7 c7 Kf6 Nf3 Qd7 Be2 Na6 b8R Qa4 b7 Bg3 Na3 Rh6 Nc2 Qb4 Rg1 Bf2 Rg3 h1Q Rh3 Be7 f8N Nc5 Ne6 Nd7 Nf4 Ne5 Ng2 Bf8 Qf1 d1Q+ Bd2 Qe1 Rd1 Ra6 Ra8 Rb6 b8N Qg1 Rg3 Rh1 Nc6 Nh6 g8B Nhg4 g7 Qh2 Bf7 Qh7 g8Q Bh6 Rh3 Bf4 Bh5 B4g3 Ra4 Qb1 Rf4 Qg6 Bc1 Qeb4 Rdd4 Qh7 Bd1 Qg6 Qc4 Rf1 Qd8+ Kg7 f6+ Kh6 Qd7 Ne3+ Ke6 d5 Rd2 Qh7 f7 d4 f8R d3 Rd8 Qh8 Be2 Qh7 Rd1 d2 Kf6 Q1b3 Qdd5 Qbd3 Rd6 Qhg6+ Ke7 Qe4 Rf8 Qd3 Rd8 Qf5 Re1 d1B Rh4 Qh3 Rf4 Qh2 Na1 Ba4 Nc2 Qh1 Rd1 Qh3 Rd3 Qf5 Rc3 Qh3 Nfh4 Kg5 Bd1 Qhf5 Bhe2 Qe4 Nf3+ Kh5 Rff8 Kg4 Bd2 Kh3 Rf7 N3g4 Bg5 Ne3 Rf6 Qh4 Rf4 Qhh7+
q1NR1rNQ/pB2n3/qR1Q1bb1/1Q2rk2/3q3B/1R1P4/1RqK4/Qn2r2N w - - 0 1 illegal: No possible last move
NbrbR2Q/1B1k1r1b/2nNb2R/6P1/1pq1Q1b1/5nB1/Q4N1b/KB1B2Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 h5 g4 e5 d4 b5 Kd2 c5 Kc2 c4 Kb2 b3 a4 b4 g6 h4 g7 h3 a5 e4 d6 e3 f6 h2 f5 e2 g5 e1B d7+ Kf7 d5 Qe8 d8Q Bg3 d6 Be5+ Nc3 Nd7 a6 Bb7 a7 Nc5 d7 Ne6 Be2 Rh7 Nh3 Bg2 Bf4 Rh6 Nf2 Nc5 Qa5 Ne4 d8Q Bb8 Qg1 Qb5 Qa2 Bf3 Qd4 Ke8 Bg3 Rh7 Bd1 Nd2 Nce4 Be7 Nd6+ Kd7 f7 Bd8 f8Q Ne7 g8B Bg4 f6 Nc6 f7 Nf3 Qe4 c3+ Kb1 Rg7 Bh7 Qc4 Qh8 c2+ Kb2 c1B+ Kb1 b2 f8N+ Kc7 Nd7 Bf4 Nb6 Be6 Na4 Kd7 Nb6+ Ke7 Bf5 Rf7 Bh7 Bbc7 Bg6 Rc8 a8B Bb8 Bb7 Be5 Na8 Kd7 Qa4 Bf4 Ra3 Be5 Re3 Bg4 Qb3 Bf4 Ka2 b1B+ Ka1 Bd3 Qa2 Bb1 Qd5 Bbf5 Re8 Be6 Bb1 Be5+ Qd4 Bf4 Qe1 Be5 Qe4 Bf4 Rg1 h1B Qda7 Bg2 Rh1 Bf1 Rh6 Bd3 Qae3 Bc2 Qe1 Bd3 Qg1 Bc2 Bh4 Bh2 Bg3 Bd3 Qed4 Bg6 Qe4 Bh7
1b1b3B/2B1qk1n/N3N2P/K1n4r/1bNQ1p2/RRQ1b3/rQ2b2Q/2Nb1B2 w - - 0 1 illegal: No possible last move
5r2/2nB1q1Q/2PkrbB1/4r1Q1/bR2RnQ1/r3pN2/NN3rNr/2KBB3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 d5 g4 Kd7 f4 e5 b4 h5 b6 h4 b7 d3 f6 e4 f7 h3 g6 a4 g5 d4 b5 a3 f5 a2 c5 h2 c6+ Ke7 b6 Rh4 f6+ Kd6 g7 Qe8 g6 Rh6 Bh3 Qd8 Qg4 Kd5 Na3 Bd6 f8Q Be7 f7 Bc5 Nc4 Be7 Rb1 a1R Rb4 R8a4 Nf3 Rh5 Re1 h1R Nb2 Nf6 g8B Bf5 g7 R4a2 Bh7 Qc7 g8B Kd6 Qfg7 Na6 b8Q Nd5 f8N Nf4 b7 Bf6 Qa7 Qf7 b8N Nc7 Q7g5 Rh2+ Re2 Be6 Na6 Bb3 Ne6 Ba4 Bg6 Rh8 B8h7 Rf8 Bh5 Ra3 B7g6 R1a2 Qb7 Rb3 Kd1 d2 Kc2 d1R Bd2 Rda1 Be1 d3+ Kd2 Rba3 Qa7 Ng2 Nf4 Rc1 Re3 Rc5 Re2 Re5 Kc1 Ne3 Ng2 Ned5 Rb8 Nf4 Nb4 Rb3 Qb7 Raa3 Na2 d2+ Kc2 d1R Qa7 Ne8 Rb4 Rd2+ Kc1 Re3 Qb7 Qe6 Qh7 Qf7 Qg3 Nc7 Bd7 Reb3 Re3 Rf2 Q3g4 Re6 Rc3 e3 Rcc4 Rd3 Re4 Rd4 Bf5 Rdd2 Bhg6 Re5 Bfe6 Rd4 Bb3 Rdd5 Bc2 Re6 Bd1 Rde5
k1nb1Rq1/N3nN1b/2K4N/1n3B1n/2PNrRr1/1R3R1Q/Qp2bb1B/3Q4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 d5 Kf3 Kd7 h4 Kc7 c4 e5 a4 b5 c6 g5 h6 b3 h7 b4 h5 d4 Ke4 g4 f4 b2 a5 g3 h6 b3 f6 g2 a6 d3 f5 d2 f7 Bd7 Kd5 e4 f6 e3 a7 e2 Nf3 g1B Bh3 e1N Nc3 b1B Ra3 b2 Rb3 Bb4 f8R Qe8 f7 Ng2 Nd4 Be7 Bf5 Bd8 Rh4 Bf2 Rf4 Ne7+ Kc5 Rg8 h8N Nc8 h7 Rg5 Ne4 Rg8 Nf6 Rg4 Ng8 Be6 Rff3 Nf4 Nh6 Nh5 Kb5 Bd3 Rf4 Be2 Rff3 Ne7 Kc5 Kc8 c7 Nbc6 Kb5 Kb7 c8N Bd5 Rf4 Rb8 Rff3 Be4 a8Q+ Kc7+ Kc5 Na7 Rf4 Rb6 Rff3 Re6 Rf4 Nb5 Qa2 Kb8 Na7 Nc8 Rff3 Bc2 Rf4 Re4 Rff3 Qe5+ Kc6 Qe8+ Bd7 Qe5 Qg1 d1N Re8 Qe7 Bf4+ Ka8 Bh2 Ndc3 Qd1 Bcd3 Nhf5 Re5 f8R Nd5 Rf6 Ng7 Ref8 Re3 Nf7 Bb1 h8Q Re5 Qh4 Nh5 N5h6 Bh7 Qh3 Ree4 R6f4 Qg5 Be6 Qg8 Bf5 Nde7+
nkr5/5Rb1/1r2r1Bq/1N4QR/P1N2pQ1/1nB1NKn1/b4nQ1/NB4Br w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 e4 g5 d4 c5 h4 Kc7 a4 f5 h6 b5 h5 c4 e6 c3 e5 g4 e7 b3 e8N+ Kb7 d6 b4 e6 g3+ Kf3 b2 e7 g2 d5 c2 h7 b3 h6 Qc7 d7 Nc6 d8N+ Ka7 d6 Bd7 Nb7 Rb8 Ng7 Qb6 e8B Qd4 Nc5 Qe5 Bg6 Qh2 Bd3 Be6 d7 Nge7 d8Q Rc8 Nc3 b1R Be3 c1N Nb5+ Kb8 Bd4 b2 Nb3 Rg8 h8B Nb4 h7 Ned5 Qg5 Qh6 Rh5 Nb6 Ra2 Bc4 Na1 Nb3 Ra3 Rc1 Bb1 Na8 Bf2 Rc6 Qd4 Nd3 Qdg4 Re6 Be3 Na5 Rc3 f4 Nf5 Ba2 Rc7 Nb3 Rf7 Rd1 Bc3 Nf2 h8Q Bg7 Bed4 Rf1 Ne3 Rc8 Qg8 Rd1 Na3 Re1 Ne2 Rh1 Nac4 g1N+ Kg2 Ngh3 Kf3 Ne4 Bb6 Ng3 Nd4 Nf2 Nb5 Rc1 Q8d8 Rh1 Qd2 Nd3 Qg2 Nf2 Bbd3 b1R Bc5 Rbe1 Bb1 Rb6 Nd1 Nd3 Bg1 Ree6 Nde3 Nf2
r1n1K3/r4BrR/Q1Qr1bBB/3N1bRP/6R1/q2b2B1/b2N2Np/nN4k1 w - - 0 1 illegal: No proof kernel
3R1nbb/1Q2r2b/BB1N2rn/QQP1N3/7k/1n3Bpb/2n1K1Rq/3QRB2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Qd3 f6 Ra2 Kf7 b4 d5 e4 g5 h4 Bg4 Bg2 a5 c4 f5 b6 f4 b7 a4 e6+ Kf6 e7 a3 e8B f3 b5 Ra7 b6 Qd7 h6 Nc6 b8Q Rh7 h5 Bh3 b7 g4 Be3 g3 Nc3 Ra6 Nb5 f2+ Kd1 f1B Nf3 Rf7 h7 Nd8 h8R Ne6 h6 Bg7 h7 Nh6 Bf2 Kg6 e5+ Kh5 Qe2 Qc8 Bc6 d3 Rd8 d4 h8Q Nf8 e6 d2 e7 Kg4 e8B Re7 Qee5 Bd3 Re1 Bh7 Bf1 Qd7 Rb2 a2 Qg8 a1N Qgd5 Bh8 Qa7 Qc7 b8Q Qb6 Qbb7 Nb3 Qe2 Qa5 Ne5+ Kh4 Qd6 Rb6 Bf3 Qa2 Qa5 Bg8 Qc5 Rg6 Nd6 Bh7 Bb5 Bg8 Kc2 d1N Kd3 Ne3 Ba6 Bh7 Qcb5 Bg8 Qc2 Bh7 Ke4 d3 Qe2 d2 Kd3 d1B Qc2 Nd2 Qb1 Bb3 Qd1 Nd5 Bb6 Ne3 c5 Bbg8 Rc2 Nb3 Rh2 Nc2 Rhe2 Nca1 Rh2 Qg2 Ke3 Qg1+ Ke2 Nc2 Rg2 Qh2
2Q3KB/BrRb2N1/1nq3r1/bRP1N2N/1B3r2/4np1Q/3r3Q/kBb2bQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 g5 e4+ d3 b4 d5+ e6 a5 e5 a4 h6 f6 Kg6 f5 Kf7 g4 h5 d4 b6 g3 h7 a3 b7 g2 h6 f4 b5 f3 e7 a2 e8N Ne7 e6 Nec6 b6 Na6 b8B Qc7+ e7 Nc5 b7 Ra7 Nd2+ Kc3 Ba3 Na4 Rb1 a1B Nc4 d2 Bd3 Nb4 Ng7 Qc6 e8Q Nb6 Ne5 N4d5 Rb5 Bd7 Bb4+ Kb2 c4 Ne3 Ne2 g1R c5 Rg6 Bb1 d3 Qg1 d1R Nf4 d2 Nfh5 Bd6 Qe6 Bc7 Qh3 Rd8 h8Q Rf8+ Ke7 Rf4 h7 Rg2 Qc8 Rg6 Bf5 Ka2 Kf8 Bb2 h8B Bc1 Kg8 Ka1 Bb1 Bd8 Bd6 Bc7 b8Q Rb7 Rh2 Na8 Rg2 Ba5 Rg5 Nb6 Rf5 Re1 Rf7 d1B Bc7 Re2 Re7 Na8 Bb6 Rd2 Ba7 Be2 Qd6 Bf1 Qdb8 Bf5 Qd6 Nb6 Rc7 Rd1 Qd2 Bd7 Qdh2 Rd2
rk3Bbb/R2q2RQ/RK1N4/2pPBB2/rQ1r4/2Nn1n2/1Rr5/bbQ4B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kc4 c5 b4 Kc7 f4 h5 d4 e5 g4 h3 d6+ Kb7 d5 e4 b6 e3 Kb5 h2 g5 h4 g6 h3 f6 a4 f5 e2 f7 e1R d7 a3 f6 a2 g7 Qe7 d8R Be6 Bb2 Nc6 Nf3 Re2 Rg1 h1B Rd7+ Kb8 b7 h2 Be5+ Ka7 Nh4 Nh6 g8B Re4 Rg7 Re8 Qc1 Rg4 Bg2 Na5 Nc3 Nc4 Nf5 Ra8 Bh7 Nd2 Nd6 Rd4 Bf5 Kb8 Kb6 Ra4 b5 Ng4 Bge4 Bg2 Rc7 Bh3 Bh1 Qd7 Rc6 Be7 f8B Nf3 f7 Bf6 Rh7 Bg2 Be7 Rac4 Ka6 Bh3 Bg2 h1R Bd3 Rh2 Bh1 Nf2 Rb6 Bhg4 f8Q+ Kc7 b8R Qc6 Qf7 Rd8 Bf8+ Qd7 Ra8 Rb8 Ra7+ Rb7 Qg8 Bh8 Rg7 Bgf5 Qh7 Bg8 Rb1 a1B Rb2 Rg2 Ka5 Rh2 Rba6 Bg6 Ra8 Rb8 b6+ Kd8 b7 Kc7 R8a7 Ra8 Bf1 Rb4 Bh3 Bb1 Bf5 Nd3 Qd2 Rc8 Qc1 Rc2 b8Q+ Kd8 Qb5 Ra8 Kb6 Ra4 Nf7+ Kc8 Nd6+ Kb8 Qb3 Rh2 Qb4 Rc2
2R2bR1/r4nR1/N1bN1npN/BRB1Q1QQ/3n4/3k2P1/1K1r1q2/Qn2r2r w - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 b5 a4 f5 axb5 h4 exf5 h3 g3 Kf7 Bg2 hxg2 Ra3 Ke8 Ra6 Rh3 Ra1 Rh8 d4 Kd7 Kd2 Kd6 Kc2 e5 f4 a5 h4 c5 b4 e4 h5 e3 h6 e2 h7 e1N+ Kb2 g6 b6 a4 b7 c4 b5 Qd7 f6 Qe7 b6 Ra6 f5 Qd7 f7 Nc2 f6 Qc6 Rh5 Be6 Na3 Bg7 f8B+ Ne7 f7 Bg4 Nf3 g1R Bd2 Qc8 Ng5 Rg2 Ba5 Nc6 b8Q+ Qc7 b7 Ne5 Rc1 Rd2 Nb5+ Kd7 d6 Kc6 d5+ Kc5 d7 Na3+ Rc2 Nb1 d8R Bf3 d6 Ng8 Rc8 Bc6 d7+ Kd5 Be7 Qb6 f8R Nf6 Nf7 Ke4 d8Q Ra7 Nh6 Qf2 Rg8 Bf8 Bc5 Nf7 Nd6+ Kd3 Qg4 Rd1 Qbc7 Rd2 b8N c3+ Kc1 a3 Na6 Ne8 Qdg5 a2 Rb2 a1N Rb5 c2 Kb2 Nf6 Qe7 Rd1 Qee5 Re1 Rg7 Rg8 h8Q c1R+ Bd2 Nc2 Ba5 Rh1 Rh4 Rce1 Q4h5 Be7 Rhb4 Rd8 Rbb8 Rdd7 Rcg8 Bf8 R4b5 Re2 Rc8 Rd2 Kb3 Re7 Qa1 Re3 Kb2 Ree1 Rh7 Nd5 Qhe5 Nf6 Rhg7 Nd4+
1Q2nr1B/1B1k2p1/Q2b2Qq/R2b4/r3rQRN/2nBN2K/1b3PNr/2B2b2 w - - 0 1 illegal: No possible last move, all moves rejected
3Q1r2/p1BQb2n/k1rB1q2/NRb1N3/P1N1RrBn/1KNn4/7n/R1rR4 w - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 Qf6 h3 Qd8 Kd2 g5 Ba3 g3 Bg2 g4 Bf3 b6 Ke1 Bb7 Bg2 Bf3 Bf1 g2 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 Kd2 h5 Kc3 d5 a4 Kd7 f4 Kc6 e4 Kb7 g5 d4+ Kb3 b5 c4 d3 f5 b4 g6 d2 f6 h4 e6 h3 c6+ Ka6 c5+ Ka5 g7 h2 e5 Qc8 f7 Na6 c7 Be7 f8B Rb8 c6 Qd8 c8N Bd6 e7 Rb6 e8R Be7 e6 Nf6 g8R Nh7 c7 Rc6 Nf3 g1N Be2 g2 Ne5 Nf3 Nb6 g1B c8N Bgc5 Nd6 Nh4 Rg5 Rg8 Re1 h1R Bg4 Rf1 Nc3 Rf4 Ba3 Rh8 Bg7 Rhf8 Rf1 Nc7 Ndc4+ Ka6 Na5 Nd5 Nbc4 Ne3 Re1 Qd4 Rd8 Nf1 Re4 Nh2 Bf6 Bed6 e7 Qf2 e8Q Be7 Qd7 Qf1 Qf3 d1N Qfd3 Nf2 Qd1 Nd3 Rf5 Rf2 Bg5 Rf3 Bf4 Qf2 Bg3 Rf4 Rc1 Bb6 Ng6 Qd4 Qc7 Nb2 Kc2 Qh8 Rb5 R4f5 Ra1 Qf6 Rd6 Rf3 Qd8 Rf1 Be5 Rf4 Rd7 Bf2 Bc7 Bg1 Nge5 b3+ Kb1 Bb6 Qd5 Be3 Qe6 Bg1 Rd1 Nd3 Qed7 b2 Kc2 b1R Bad6 Rc1+ Kb3 Bc5
qn6/N6N/bB4B1/prK4Q/P2N1QnR/1BBR2Rq/3b1bnk/2bN3q w - - 0 1 legal: proof: g4 b5 h4 g5 b4 a5 d4 c5 bxc5 f5 Bd2 e5 dxe5 Ra6 Bc1 Rg6 Qd2 fxg4 Qd1 g3 Bh3 g4 Bf1 Rg5 hxg5 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 Ke6 Kd4 Kf5 f4 h5 a4 d5 c4 g2 e4+ Ke6 f5+ Kd7 c6+ Ke7 c7 h4 c5 h3 f6+ Ke6 f7 h2 g6 b4 c6 g3 g7 b3 Be3 b2 Nc3 b1N Qh5 Qg5 Nf3 g1B Ra3 g2 Bc4 Qg3 Nd1 Nf6 g8R Bf2 Bb3 Bb4 f8B g1B Bg7 Ba6 c8N Bd2 c7 Qh3 Na7 Ng4 Kc5 Nc3 Bf6 Rh7 c8Q+ Rd7 Qd8 Rb7 Qf8 Rb4 Bg7 Bc1 Qf4 Ne2 Bh8 Be1 Rg5 Bed2 Nd4+ Ke7 e6 Bf2 Qf5 Nf4 e5 Ng2 Qf4 Nf6 Rg3 Ng4 Re1 h1Q Re2 Kd8 e7+ Kc7 e8N+ Kd7 e6+ Ke7 Ndb5 d4 Nf6 d3 Nh7 Ne1 Ba1 Qa8 Bc3 Ng2 Ra1 Bde1 Ra3 d2 Nb2 d1Q Nd4 Bed2 Re1 Ne5 Rh1 Ng4 Rh2 Qh1 Nd1 Kd8 e7+ Kd7 e8B+ Ke7 Bg6 Kd7 Ng5 Ke7 Qc7+ Kf6 Qf7+ Ke5 Qc4 Bfe1 Bg1 Kf4 Nh7 Bf2 Rd3 Qg3 Rh4 Qgh3 Bb2 Bfe3 Bc3 Kg3 Bf2+ Kh2 Qf7 Bh6 Rg3 Bhg5 Qf4 Be1 Ra2 Bh6 Rd2 Bg5 Rdd3 Bh6 Qfe5 Bhd2 Be3 Bf2 Qd6 Rb7 Qf4 Rb4 Ne2 Nd7+ Kd6 Re4 Bb6 Rb4 Nd4 Nb8 Kc5 Rb5+
N6r/B3B2k/1B1np3/QbQ2qRN/1QB3qb/NRqbP3/5n2/K2b1n1N w - - 0 1 legal: proof: c4 b5 g4 a5 h4 d5 cxd5 g5 f4 gxf4 a4 Nf6 axb5 Rg8 g5 Rh8 h5 Ra6 Kf2 Ng8 Ke1 Rg6 hxg6 Bh6 Kf2 Bg7 Ke1 Bf8 b4 f5 d4 c5 Kd2 h5 Kc3 f3 Kb2 f2 b6 a4 g7 Kf7 b7 Kg6 b5 f4 e3 c4 b6 h4 d6 h3 d5 h2 d7 e6 d6 f3 Nh3 Nf6 g8Q+ Bg7 Na3 Ne4+ Qd4 Nc6 b8B Ng3 b7 Ne4 Rb1 c3+ Ka1 c2 Qf8 Qe8 d8B Nb4 d7 Kh7 Ba7 Qf7 b8N Ba6 Rb3 Bd3 Qc5 Bf6 Na6 Nd6 Rg1 h1B Bdb6 Be7 d8Q Qf5 Be2 f1N Nc7 f2 Na8 Bf3 Rg4 Bb5 Bc4 Bd1 Qe4 Nd3 g6+ Kh6 g7 Kh7 g8N Bh4 Rg6 Qg4 Bb2 Qf5 Rg5 c1Q+ Ka2 Qc2 Ka1 Qe2 Bf6 Qh5 Be7 Qg4 Nb1 a3 Nf6+ Kh6 Qdc7 a2 Nh5 Kh7 Qed4 Nh2 Qf4 f1B Na3 Nf2 Qfd4 Bfe2 Qc3 Bd3 Q3b4 Ba6 Qca5 Bb5 Qcc5 Nf1 Ng3 Qd5 Nh1 Qdf5 Nf4 Bb1 Kb2 a1Q+ Kc1 Qd4 Nh5 Qdd3 Kb2 Qd2+ Ka1 Bd3 Bf8 Qe1 Be7 Qc3+
1brN2Qn/Nq1bBRRR/7Q/5nQ1/1nB4B/2r4p/Bp2bP2/kr1R3K w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 g4 h5 d4 c5 g6+ Kf6 g7 e5 a5 b5 d6 h4 d7 c4 a6 b3 d5 c3 d6 b4 a7 e4 g5+ Ke5 f6 b2 g6 c2 f7 e3 Ne2 b3 Na3 b1B Nd4 e2 Ne6 b2 Qd2 Ke4 Nb5 Ne7 g8R Na6 g7 Nb4 Qh6 Kd3 Bg5 Qc7 d8B c1N d7 Ng6 Bde7 Kc2 d8Q Qb7 Rh2 Rb8 a8B Bd7 Na7 Nb3 Qa5 Rh7 Nd8 Nh8 Qe5 Ba2 Rd1 Nd4 Bgf6 Kb3 Qeg5 Rc8 Rh1 Nf5 Rh2 Qe4 Bd5+ Ka3 Bc4 Qb7 Bg2 Bb1 Bgd5 Bd3 Ba2 B3b5 Bdc4 Ba6 Bc5 Bd6 f8R Bg3 Bce7 Bb8 Rf7 Bab5 Rgf8 Ba6 g8Q h3 Rg2 Rg7 Rg4 Rg6 Rh7 Bab5 Rff7 Ba6 Be5 Rgc6 Bg3 Rc5 Bh4 R5c7 Kd2 e1R Rg1 Rf1 Ke2 Bab5 Rd4 Ra1 Rdd1 Rb1 Kf1 Rc6 Rg4 Rc5 Kg1 R5c7 Bd5 Rc3 Kh1 Ba6 Qgf6 Bf1 Rgg7 Be2 Bc4 Rb3 Qfg5 Ka2 Rc1 Ka1 Rd1 Ra3 Ba2 Rf3 Bdc4 Rc3+
QB1N1b1k/BR3R2/2rR2n1/2bn3r/1N1npQ2/1r4RK/NBbP3p/1q3B2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 Kf2 Kg7 b4 c5 g4 e5 Kg2 h5 f6+ Kh7 f5 a5 d6 a4 g5 e4 b6 a3 g6+ Kh6 g7 Kh7 d7 a2 f7 c4 b7 c3 f6 c2 b5 Ne7 g8R Nd5 b6 Nc6 b8B Ra3 b7 Rb3 Rg3 Qb6 d8N Ne5 Bb2 c1B Nf3 Bd7 Nc3 Ng6 Ne5 Ba4 Rb1 a1N Nd3 Nc2 Qf3 Nd4 Ba7 h3+ Kh2 h4 b8B Rg8 Na2 Kh8 Ndb4 Bc5 f8R Qb7 Bc3 Ba3 Rf7 Re8 Ba1 Re6 Qf4 Rc6 Bb2 Bf8 Rhg1 Bc5 Rd3 Qb6 Rgg3 Qb7 Kh1 h2 Kg2 Bf8 Kh3 Bc5 Rc7 Qb5 f7 h1R+ Kg4 h3 Re7 h2 Kh3 Rg1 Rd7 Qb6 Rd6 Qb5 Rgf3 Rg5 f8Q+ Kh7 Rg3 Rf5 Rdf3 Rg5 Qe7+ Kh8 Qb7 Qb6 Qa8 Rh5+ Qh4 Rd3 Rf7 Bc2 Kg2 Rb3 Qf4 Nh4+ Kh3 Qb5 Rdf6 Bf8 Rd6 Qb7 Na6 Bc5 N6b4 Ng6+ Kg2 Qa6 Nd3 Qc4 Ba1 Qc3 Rb2 Ra3 Rbb7 Rb3 Ndb4 Qe3 Bc3 Qe1 Bb2 Rg5 Kh3 Qb1 Nc3 Re5 Nca2 Rh5+
r1B1BRQK/5rBB/b1bQ2n1/n1R1p3/2R2R2/N3bp1q/2QP4/2N1k1rn w - - 0 1 illegal: No proof kernel
3K1Q2/1R1r3b/4p2r/1Nb5/1r3bn1/pRRnPBQN/kNqNBBB1/3n4 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 g4 h5 Qa4 Na6 fxg5 Rh7 g6 Nb8 g5 Rh8 Qg4 hxg4 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 Kb3 h4 c5 d4 f5 d6 a5 h5 g3 g7 f4 b6 g2 b7 a4 d7 f3 Ke6 c4 g6 a3 d5 c3 h6 c2 d6 f2 h7 Na6 b8R Qc7 b5 Qa7 b6 Bb7 d8N Nb4 Kd7 Nc6 Nh3 g1R Nf7 Ne5+ Kd8 Bc8 b7 Nc4 d7 Qa6 Be3 c1B Nd2+ Kb2 Rb1+ Ka2 Bg2 f1N Nd6 Ne5 Rb3 Nh6 g8B Bg7 Nb5 Qd6 Bf2 Bf8 g7 Ng6 B8d5 Ra7 g8B Qf4 Bdf3 Qa4 Bc4 Ne3 Rh2 Nd1 e3 Bb2 Rh1 Nf4 Bce2 Be5 Rc3 Qc2 Rb3 Rg8 h8N Rg4 Nf7 Nd3 Nfd6 Rb4 N6c4 Ng4 Nb2 Bf4 Rh2 e6 Rh1 Bc5 Rh2 Nc3 Rh1 Ra1 Rb1 Nd1 Rc1 Qb1 Rcc3 Qc2 Ra8 Rb1 b8Q Ba6 Qd6 Bb7 Rb8 Be4 Rb7 Bh7 Qc7 Bh6 Qg3 Bf4 Kc8 Rc1 d8Q Ra1 Qf8 Rb1 Rb6 Rf7 Rb8 Rf6 Kd8 Rh6 Rb7 Rd4+ Kc8 Rd7 Nbc4 N3b2 Rb4 Rg7 Kd8 Nd3 Nbd6 Rb3 Nb2 Rc7 R4b5 Rb4 R5b6 Rc4 Rbb3 Rb4 Nb5 Rd7+
1n1NK3/1R5q/1Pp2BQB/1knp1R2/4RQ2/2rbn1r1/2BbQbRN/3r3B w - - 0 1 illegal: No proof kernel
1RQ3bb/1p2pRRP/r3Qr2/n1QRB1n1/1Nb2q2/7N/B3N1k1/2Q1Krn1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 a4 Kf6 d4 c5 h4 g5 d6 g4 h6 g3 d5 g2 h7 c4 a5 b3 d7 c3 h5 c2 h6 b2 d6 Na6 Nc3 b1B Nh3 g1N Bc4 Bg7 Bb2 c1R Ba2 Be4 Ne2+ Rc3 Qc1 Nc7 a6 Bf8 a7 Rb8 a8Q Bc2 Qa7 Bd1 Qc5 Bg7 Rh2 Ne8 Rg2 Qb6 d8N Qb4 d7 Bb3 Nc6 Bc4 d8Q Nd6 Qdb6 B8e6 Rg5 Qa4 Nb4 Ra8 Rb1 Ra6 Ba1 Kf7 f6 Rf3 Rd5 Kg6 f7 Nf6 f8R Bg8 f5+ Kh5 Rb8 Kg4 Be5 Nfe4 f6 Ng5 f7 Rf6 f8R Kf3 Rf7 Kg2 Ra1 Bd3 Rb1 Nc4 Qe6 Na5 Rb2 Bc4 Rbd2 Qa3 R2d4 Qe3 Rf4 Rf5 Rf1 Bf6 Rg7 Qf4 Rf3 Bf7 Rf1 Rf8 h8Q Bg8 h7 Rf7 Bd6 Bb2 Be5 R7f6 Rf3 Bf7 Qd8 Bg8 Qdc8 Qe4 Nc2 Rh6 Bc7 Bb3 Nb4 Bc4 Rg6 Bh8 Rg7 Qg4 Be5 Rg6 Rb3 Rf2 Rf3 Rf1+ Kd2 Qh4 Rf8 Rgf6 Rff7 R1f3 Kd1 Qf4 Ke1 Rf1#
r1R3N1/PR1N1B1Q/2Rb1B1K/2pp4/6N1/1Q2q1kb/1BNnBr2/1r2nb1n w - - 0 1 illegal: No proof kernel
1k2BN1R/pbR2bB1/3Nr2N/2B1KB2/7Q/Pqrr2p1/Qnn2N2/1R1b1n2 w - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Be7 h4 fxg4 Ba3 g3 Bb2 g4 Bc1 Bg5 hxg5 Kf8 Nf3 Ke7 Ng1 Ke8 Kd2 d5 Kc3 Kd7 Kd4 Kc7 c4 b5 e4 h5 f4 h4 c6 h3 g6 b4 f5 h2 a3 b3 c5 b2 g7 g2 f6 g3 e6 Rh5 f7 Ba6 f8B Re5 e7 Nh6 e8B Re6 g8N Qd6 e5 Qe7 Nd2 b1B Qh5 Kc8 c7 Be2 Ndf3 Nd7 Bg7 Be4 Nh3 g1N Nfg5 Ng4 Nh7 Bg6 Be3 Qf7 Nf2 Nb6 Qh4 Nc4 Nh6 Bd1 Bd3 Nb2 Rb1 Bh5 Bf5 Nf3+ Kc3 Kb7 c8R Ne1 Nf8 Nc2 Rc7+ Kb8 c6 Bg6 Bc5 Nge3 Qf6 Nf1 Qh4 Re7 e6 d4+ Kb3 d3 Kc3 Ne1 Kd4 d2 Ke5 Nc2 Bd7 Re8 e7 Rc8 e8Q Qb3 Qe6 Bf7 Rg1 h1B Be8 Be2 Rg2 d1R Rh2 Rd3 Qec4 Qb6 Qa2 Bd1 Rd7 Qb3 c7+ Kb7 Re7 Rab8 Rh3 Ka8 Rh2 Rb6 Rh3 Bb7 Rh1 Rcd8 c8N Kb8 Rc7 Rc3 Rh3 Rf6 Nd6 Re6+ Kf4 Rd7 Ng8 Rde7 Qf6 Re5 Rh8 Ree3 Nh6 Red3 Qg5 Re6 Qh4 Rf6 Ke5 Re6+
1bQR3b/2n3K1/B1B3RB/N2q1rq1/2Q1Q1BN/n2Rq2R/p4P1p/1b3rk1 w - - 0 1 illegal: No possible last move
k3B2Q/BN2n3/r1n1RNq1/qQ1Q1b2/1RpK3b/1N2PbpQ/1r6/BN5r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 b4 f5 d4 g5 h4 c5 b6 a5 b5 a4 h6 a3 b7 Kc7 d6+ Kb6 d5 Ka7 h7 g4 b6+ Ka6 d7 f3 Ke3 a2 h5 f2 h6 g3 d6 Nf6 Qd3+ Ka5 Bb2 Nh5 Rh4 Rg8 h8Q Nc6 b8N Rg6 h7 Ng7 b7 Kb6 Nf3 Ka7 Nfd2 Qf6 d8Q Be7 Nd7 Rb8 Qb5 f4+ Ke4 f3 e3 Qf7 Nb3 Nf5 Nf6 Qg8 Bd3 f1R d7 f2 Bc4 Re1 Bf7 f1B Be8 Bg2+ Kd3 Bf3 Rb4 c4+ Kc3 Ra8 Qda5+ Kb8 d8N Rh1 Qd5 Ra6 Qab5 Ka7 b8B+ Ka8 Nb7 Bd8 Ba7 Nfe7 Ng4 Bf5 Nf6 Ne5 Kd4 Qg7 Nh5 Rgb6 Nf6 Qf7 Qg8 Qg6 h8Q Bc7 Qh3 N5c6+ Kc5 Bf4 Qgh8 Bg5 Bc3 Nd8 Kd4 Bh4 Na3 Qg8 Rd1 a1Q Nb1 Qa5 Ba1 Qg6 Rf1 B3e4 Rf4 Bf3 Re4 Rd6 Kc3 Ndc6 Re6 Rd8 Qe5 Rd2 Qd4 Rb2 Qdd5 Ne5 Kd4 N5c6+
k1bq3b/2Q1NrNB/1Q6/rq3RQn/pPr2Rn1/6R1/3NRp2/1KBb1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 c5 b4 Kc7 d4 Kb7 Kd2 f5 Kc2 a5 b6 g5 e5 a4 d6 c4 e6 f3 h6 f2 h7 c3 d7 f4 h5 f3 h6 g4 d5 g3 e7 g2 e8N Nc6 d6 Na5 Bd3 f1B Ra3 f2 Nd2 Qh4 d8R Ne7 d7 Kb8 b7 Nac6 Ng7 Ka7 Ne2 g1R Ng3 Ng6 Qh5 Qh3 Kb1 Nce5 Re8 Nf4 d8Q Ng4 Re2 Qh4 Qhg5 Nh5 Qc7 Bg2 Rh2 Bf3 Ngf1 Bd6 Bc2 Rf8 h8R Be5 h7 Rf7 Rf8 Bf6 h8N Bd4 Re7 Bd1 Re2 Rh1 Bh7 c2+ Ka2 Rg1 Ng6 Rg3 Rb3 Rc3 Ne7 Rc4 Rg3 Bb2 Qb6+ Kb8 Rhh3 Ra5 Rf3 Be5 Rf5 Bb2 Rg3 Be5 Bb2 c1Q Rf4 Qc3 Bc1 Qd3 Rf5 Qd8 Kb1 Qh1 Rf4 Qc6 Qc7+ Ka7 Rf5 Qb5 b8Q+ Ka6 Qc5 Bc3 Qbe5 Kb7 Qb6+ Ka8 Qec7 Bd4 Ne6 Bh8 Ng7 Rf6 Rf4 Re6 R8f5 Rf6 Qd4 Rf8 Qdb6 Rf7
1B3n2/3b2k1/q2R1N2/2NBQ2P/pb1r2Bq/rQ1qrK1R/5NpN/Q4n1B w - - 0 1 illegal: No possible last move, all moves rejected
Q5Q1/3kn1r1/2q3Qn/rRbN2Bp/1B1q1pRP/1N3b2/1B2NNB1/K4bn1 w - - 0 1 illegal: No possible last move, all moves rejected
1K1nNrQb/q5q1/1nBR1B2/1q2bkp1/NB1R1NbQ/p3P3/4B2Q/r1Q5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 f5 Kf4 c5 d4 a5 h4 a4 b4 g6 e3 c4 h5 a3 d6 Ke6 d5+ Kd7 h6 g3 e6+ Ke8 Ke5 g2 h7 g5 e7 Kd7 b6 c3 b7 c2 b5 f4 b6 f3 Rh4 f2 Ne2 g1Q Nbc3 Ra5 Rd4 Ra7 Nf4 Nf6 Be2 f1Q Na4 Bg7 Bd2 c1B Bb4 Qf8 e8B+ Kd8 d7 Na6 b8N Qg4 b7 Nc7 Na6 Rg8 b8Q Ne6 h8Q Rc7 Qh4 Bb2 Qc1 Bh8 Rb1 Qg7 Kd6 Rc4 Nc7 Rf8 Ra1 Qg3 Ra2 Ba1 Rad2 Rc2 R2d3 Ra2 Kc6 Qgf3 Kb6 Qh5 Ka7 Qhf7 Rd1 Qe7 R1d2 Qc5+ Ka8 Ke7 d8B+ Kd6 Bc6 Ke5 d6 Kf5 d7 Nd5 Bf6 Nd8 Ne8 Nb6+ Ka7 Bc3 Qd6 Qb5 Kb8 Ra1 Qc7 Qe1 Rd6 Be5 R2d4 Nf7 d8Q Qf1 Qde7 Nd8 Qf7 Qa5 Qg8 Be6 Bd1 Qfb5 Be2 Qaa6 Qcf7 Bd7 Qfh5 Bc8 Qh2 Be6 Q5h4 Bd7 Bb7 Qa7+ Kc7 Be6+ Be7 Bf7 Bf6 Nd7 Kc8 Bh5 Bh1 Bg4 Bc6 Qaa6+ Kc7 Nb6+ Kb8 Qaa7#
6Nn/B3bBqK/r3nRQ1/1BrNp3/3kbP2/3N3p/Qr2R1q1/N2Rq1R1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 a5 g4 e5 b4+ Kb6 d4 c5 d6 h5 d7 c4 d5 a4 g5 c3 d6 a3 f6 a2 Kf5 c2 Kg6 h3 f7 h2 Nh3 h4 Qh5 Na6 Nf2 h3 Nd2 Qe8 d8R Bg7 d7 Bf8 Nd3 Qe7 Rg1 h1R Nb3 Bg7 f8R Rb8 Be3+ Qc5 Rf6+ Kb7 b6 c1Q b5 Q1c2 Re1 a1Q Re2 Qe1 Na1 Ka8 b7+ Ka7 Qg4 Nc7 b6+ Ka6 Qg2 Ra8 b8Q Kb5 b7 Kc4 Qa7 Kc3 b8N Qcd2 Nc6 Bf8 Ncb4 Be7 Qa2 Ne6 Qg3 Qd6 Ba7 Nh6 Qg4 Rf8 Kh7 Nf7 g6 Bb7 g7 Nh8 g8B Rh2 Bf7 Be4+ Qg6 Qc5 Nd5+ Kd4 Rb8 Rg2 Rb1 Rfc8 d8N Rh2 Rd1 Rc6 Bb8 Raa6 Ba7 Qb2 Bg8 Rg2 Nf7 Qb7 Nh6 Rc7 Re3 Rb2 Bf7 Qa8 Re2 Qf8 Bb8 Qc2 Ng8 Rc5 Ba7 Qcd2 Bg2 Qf1 Bf3 Qg2 Bg4 Qe1 Bf5 Ng7 Bd7 Ne6 Bb5 Qg7#
r1N5/bb1B1K2/RNR1n1Q1/1qP1b1q1/Q1R1B3/1Np2RBr/1Np2r2/4k1n1 w - - 0 1 illegal: No proof kernel
Q4q2/4QN2/4n3/R1pRKRQ1/3NrnNb/2RNP1q1/1rb1pB2/1k3Bbq w - - 0 1 illegal: No possible last move
N1B1Nb2/NQ5Q/B1Rr2rB/pqn5/3pPb2/4R2q/K4n1N/BQ1bq1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 Ke6 c4 Kf5 Kc2 Ke4 Kb3 a5 b6 g5 e6 f5 h6 d5 b7 d3 h5 d2 h7 Ke3 c5 Kf2 e4 g4 h6 f4 c6 f3 c7 g3 e7 g2 e8N Ra7 Nc3 Nf6 Na4 Bh3 c8B Bg7 Ba6 Nc6 b8Q Ng4 Ka2 Qh4 b4 Ra8 b5 Nd4 b6 Ne6 b7 Bf8 Nb6 Rg8 h8B Nc5 h7 Rg6 Qc7 Rd6 b8N Qg3 Qb3 d1Q Nc6 Qe1 Qb1 Rg6 Bc3 d4 h8Q Ra7 Qcg7 Rd7 Na7 Rdd6 Bh6 Qe5 Qhh7 Qh2 Ne2 g1B Qb7 Bg2 Bb2 Qh3 Ng3 Bh2 Nf1 Bf4 Nh2 Bf1 Rg1 Be2 Na8 Bd1 Rf1+ Kg2 Rf2+ Kh1 Re2 f2 Re3 f1Q Qc2 Nd3 Rc1 Kg1 Qb1 Ngf2 Rc6 Nc5 Ba1 Qb5
2Q2qr1/2NKR2B/1B1R2bP/Nq4b1/k1N1RnNp/1R4p1/5B2/1Qn1qnr1 w - - 0 1 illegal: No proof kernel
1Qq1BN1r/1bN2n2/4QQ1P/5rQp/2BNR1b1/K1p1R3/1Nn1nBkb/1q6 w - - 0 1 illegal: No proof kernel
nNR3r1/3R4/q4rBp/pQN5/N1R2b1P/N2R1B2/k1K1bBr1/4nqQb w - - 0 1 illegal: No possible last move, all moves rejected
R3Q3/NNKBrq1n/rQq2BpQ/6N1/3P2B1/1bk1q1Np/R1n1Bb2/1n6 w - - 0 1 illegal: No proof kernel
3b2R1/2N5/5PNq/1R1B1p1n/2bR1Q1b/4QRp1/1nkN2QB/Kn1N1rqr w - - 0 1 illegal: No proof kernel
KN1q4/1b1Q1Q2/2Rb1pn1/3p2R1/1RrNP1N1/rn5B/QQ4RB/n2kr1q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 a5 c4 d6 b4 g4 b6 a4 c5 d3 h6 g3 c6 g2 h7 d2 h5 a3 b5 a2 b7 Qf6 b6 Ra7 c7 Nc6 b8N Rb7 h6 Qf2 Nc3 Na5 Nf3 g1N Nb5 Bd7 c8R Qg3 Nbd4+ Ke7 Kd5 Qe1 e4 Bb5 e6 Kf6 e7 Ba6 e8Q Ne2 Bh3 Qg1 Nh2 Kg5 Rc6 Kf4 Ng4 Ra7 b7 Nb3 Rh2 f6 Qf7 Be7 Rb1 a1R Rg2 Ra4 Rb2 Na1 Rb4 Ra3 Bb2 Nc1 Qb3 d1Q Qa2 Ncb3 Bc3 Qf2 Be1 Qg1 Bg3+ Kg5 Be5 Bf8 Bh2 Ne7+ Ke6 Qd3 Kd7 Ng6 Kc8 Be7+ Kc7 Rc8+ Kb6 Qd2 h8R d5 h7 Bd6 Rg8 Qc3 Rg3 Kf4 h8Q Qb2 Qhg7 Qbf2 Rc1 Rc4 Rg2+ Qg3 Qd7 Ra8 Qgf7 Ra7 Ne5 Ke3 Ng4+ Kd3 Rcc2 Qh4 Rg7 Qh8 Rg8 Ne5 Rg5 Ng6 Nc6 Qg8 b8Q Rc7 Qb7 Qd8 Nb8 R7c5+ Ka7 Rc8 Rce2 Rc1 Ka8 R8c4 Rc2 Re1 Ne2 Rd4 Rc6 Rc4 Qb1+ Kd2 Qa2+ Kd1 Qb6 Rf1 Qf2 Re1 Nd4 Bg3 Qfb2 Bf4 Qg8 Bd6 Qgf7 Bb7+
Q2r1q2/2N3NQ/BR1NpbBN/1B5r/1B2Kp1k/5n2/b1b3P1/2Q1rnRq w - - 0 1 illegal: No possible last move
B1Q1Bn2/2n1b2N/1rbpNQ1b/K4N1n/8/p1r2q2/RBR1P1k1/1q1QBN2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 Ke6 b4 Kd5 c4+ Ke4 h6 a5 c5 f5 b6 g5 b7 a4 b5 d6 h5 d3 Kc3 d2 Kb4 a3 b6 g4 h7 g3 c6 g2 h6 f4 c7 f3 e6 f2 e7 Bg7 e8B Bg4 c8N Bd4 Nf3 g1B Ne7 Nf6 Nf5 Qd7 Bg2 f1N Ra2 Ra6 Bb2 Qf7 Ng5+ Kf4 Be4 Rf8 h8Q Ng3 h7 Nbd7 b8Q Ngh5 b7 Bf3 Qc8 Bge3 b8N Rb6+ Ka5 Nd5 Na6 Bf6 Nc5 Nc7 Ba8 Be7 Qf6 Bc6 h8B Kg4 Nh7 Bh6 Rg1+ Kh3 Ne6 Kh2 Rh1+ Kg2 Rh3 Rg8 Rc3 Rg3 Rc2 Nf8 Bg7 Bf4 Bh6 Rc3 Bg5 Be3 Bh4 Bf4 Be1 Bh6 Qc1 d1Q Nd2 Rh3 Nf1 Rc3 Qd2 Qa1 Qd1 Qb1 Neg5 Qb3 Ne6 Qd5+ Nc5 Qe4 Ne6 Qf3
4n1n1/1KrqbR2/N2p2pk/5nq1/2R4B/1Nr1qB2/P4Q2/QNNbQ1RQ w - - 0 1 illegal: No possible last move, all moves rejected
5b1B/3Q1n1b/k1PQnn1r/B6q/Kq1Bp1N1/pB6/3RNN1b/2rRRR2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 f4 d5 b4 Kd7 h4 Kc7 c4 Kb7 Kc2 e5 Kb3 a5 f6 e4 h6 d3 f7 g4 h7 d4 b6 d2 f5 d3 f6 g3 c5 g2 c6+ Ka6 b7 Qe7 b5+ Kb6 h5 Qd6 h6 Qe7 Nh3 g1B Nf2 Ka7 b6+ Ka6 Ka4 Ra7 Nc3 Bh2 Ne2 Bg7 f8Q Bd6 f7 Nd7 b8R Bc7 b7 Ne5 Rb1 Bd7 Rd8 Nf6 b8R Bf5 R8b2 Qc5 Qd6 Bf8 Bh3 Rb7 Re1 Rb3 Ra2 Rc3 Rc2 Bg6 Be6 Bf5 Bb3 Qd4+ Ka3 a4 Bb2 Rc4 Bc3 Rc5 Ba5 Qb4+ Ka2 a3 Rcc1 Rg8 h8B Rg6 h7 Rh6 Bg7 Rc4 h8B Bh7 Rc2 Rc5 Rcb2 Rc1 Qd7 Bfd6 f8N Nf7 Ng6 Bf8 Ne5 Bcd6 Neg4 Bh2 Qc2 d1N Qc5 d2 Qcd6 Ne3 Ra1 d1Q Rd2 Ne8 Bd4 Nd5 Rb1 Nf4 Rf1 Qe1 Rd1 Qb5 Ra1 Qeb4 Rd2 Rc5 Rae1 Nf6 Rb8 Ng5 Bg8 Q4a4 Rb7 Rc3 Rdd1 Qe5 Rb2 Qb4 Rbd2 Rc1 Be6 Nf7 Bd5 Qc5 Kb3 Qh5 Ka4 Ne6 Bb3 Qb4+
NN3rr1/k4r1R/b1P2pB1/1Q1p1Q2/1n2NKq1/Rb6/1B3nB1/1q1BQ1bN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 d5 Kf3 Kd7 c4 Kc7 e4 Kb6 b4 a5 h4 g5 c5+ Kb7 b6 g4+ Kf4 a4 e6 d3 h6 d2 e7 f6 e8B a3 h5 g3 h7 g2 e5 a2 e6 Ra5 c6+ Ka8 h6 Bg7 b7+ Ka7 e7 Bd7 b5 Bf5 Bh5 Na6 e8B Bg6 b8N Nc5 b6+ Ka8 b7+ Ka7 Nc3 Ra6 Qe1 d1B Nge2 g1Q Ng3 Qb6 Nce4 Bb3 Bd1 Bf8 Nd7 Qg2 b8N Nd3+ Kg4 Qb4 Nb6 Bc5 Bb2 Bg1 Na8 Qb7 Rh4 Nb4 Kf4 Bh5 Nh1 Be2 Rh5 Ra3 Bg6 Ba6 Rh4 Qh3 Bg2 Ra5 Rc1 a1R Rc3 Qb5 Rh5 Qbd3 Rh4 Qb1 Rd3 Rb5 Rg3 Rb7 Rf3 Ba4 Ra3 Bb3 Rh5 Rf7 Rh4 Ne7 Rh5 Re8 h8Q Ng8 h7 Nh6 Qg8 Qd7 h8Q Ref8 Qgh7 Ng4 Rh3 Ra2 Qh5 Qe6 Qf5 Nf2 Rh7 Qc8 Ba1 Re2 Bb2 Re3 Qg7 Rg3 Qg8 Rb7 Qge6 Rbf7 Qee5 Qe6 Q5c3 Rg5 Qc4 Qc8 Qb5 Qe6 Bgh5 Rgg8 Bg6 Qd7 Qg5 Qh3 Qf5 Qg4+
Qq1Q3b/qq2NNk1/2p1Q3/1B2n2p/1KQ4P/5rn1/2r1bB1R/N1b1RBN1 w - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 f5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 fxg4 Kd2 Kf7 Kc3 a5 e4 h5 f4 g5 h4 a4 b4 g3 b6 a3 f5 g2 b5 a2 d6 g4 e6+ Kg7 e5 g3 b7 Rh7 b6 Ra6 d7 Ra5 e7 Nf6 e8Q Ng4 e6 Na6 b8N Rd5 e7 Ra5 f6+ Kh8 f7 Kg7 b7 Ne5 Qd5 Nc5 Na3 Ne4+ Kb4 Rc5 Nc6 Rc2 b8Q Ba6 Be3 Be2 Re1 a1B Qa8 Qb8+ Qb5 Rh6 d8N Rf6 Rh2 Rf3 Bf2 Bb2 Qd7 Bc1 Qd6 Qb7 e8B Be7 Bd7 Bf6 Qe6 Qb8 Ne7 Qb7 Nh3 g1Q Bc6 Qg2 Ng1 Qb8 Be8 Qh1 Bc6 g2 f8Q+ Kh7 Nf7 Bh8 Qe8 Kg7 Qd8 Ng3 Bd7 Qc8 Qbc4 Qb8+ Bb5 c6 Nb1 Qb7 Nd2 Qb8 Nh3 g1Q Nb3 Qhg2 Na1 Qb7 Ba7 Qgb6 Ng1 Qgf2 Rg2 Q6c7 Rh2 Qcb8 Bc5 Qd4 Bb6 Qdd7 Be3 Qd4 Bf2 Qda7
Q1R1rb1Q/b5Q1/1KpBRq2/r1p1N3/3kB2P/B2q1Q1b/1Rq2Rn1/nN6 w - - 0 1 legal: proof: e4 b5 g4 f5 exf5 h5 gxh5 d6 a4 Ba6 axb5 Bb7 c4 Bc8 c5 dxc5 Ke2 Kd7 Ke3 Kd6 d4 Kd5 b4 e5 f4 g5 h4 e4 h6 g4 f6 g3 f7 g2 h7 Nd7 f5 Qf6 b6 Qd6 f6 Ne7 b7 Ng6 b8B Rg8 h8Q Rg7 b5 Nb6 Ra2 Nf4 Bd3 Nd7 b6 Rg5 Nf3 g1Q+ Rf2 Qg2 b7 Re5 Qa4 Re8 Re1 Qh2 Ba3 Ng2+ Ke2 e3 Ne5 Qa6 Kf3 e2 Be4+ Kd6 d5 Qc4 Ref1 e1B Qg7 Bd2 Re1 Bf4 Qb3 Qd3+ Re3 Be7 f8Q Bg3 Qfh8 Bf8 f7 Bf4 Ng4 Bg3 Nf6 Ke5 d6 Kd4 Ng4+ Nf6 d7 a5 Qa2 a4 Ne5 Nd5 d8R Bh3 Rc8 Ra5 Qe2 Nb4 Qf1 Be7 f8Q Nc2 Qh1 Na1 Qff6 Bd7 Qa6 Bf4 Qa8 c6 Bd6 Bf8 b8R Bf5 Rbb2 Bh3 Qd1 Qg1 Qb3 Qc1 Qbf7 Qcc2 Qfh5 Bg5 Kg3 Bd8 Qf3 Bc7 Ree2 Ne1 Kf4 Bb8 Bb4 a3 Re3 a2 Ba3 Bf1 Kf5 Ng2 Re1 Be7 Ke6 Bf8+ Kd7 Be2 Qf5 Bg4 Re3 Bh3 Qfg4 Ba7 Kc7 Bb8+ Kb7 Nb3 Kb6 a1Q Nd2 Qaf1 Nb1 Na1 Ree2 Qfc1 Re1 Qh6 Qf3 Qf6 Rg1 Nf4 Rg6 Ng2 Rh6 Qf5 Re6 Qf7 Bc7 Qf6 Bd6 Ba7+
1n1N1kbN/2B1nBr1/1Pr1p2R/4R1bp/1r1qqQ1Q/NN1R1q2/7K/5BR1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 a5 f4 c5 Kf2 e6 d4 h6 g4 a4 Kg2 h3+ Kh2 c4 d6 a3 g5 c3 d5 c2 d7+ Ke7 b6 a2 b7 Rh7 g6 Ra6 f6+ Kd6 f5 Qe8 d8N Qa4 b5 Qb3 f7 Ke7 b6 Qb5 g7 Qd3 f6+ Kd6 Qh5 Qf3 Na3 Qf5 Bf4+ Kd7 d6 c1R Ne2 Rc6 Nd4 Qe4 Nb3 Ra4 Qh4 Be7 f8R Qf3 f7 Rb4 Re1 a1Q Rg1 h5 Re5 Qd4 Re8 Nh6 Rh8 Nf5 g8B Rg7 f8N+ Ke8 Rh6 Bg5 Ng6 Ne7 Nh8 Bd7 Bf7+ Kf8 Bg3 Be8 d7 Na6 b8Q Qfe4 Qc7 Nb8 Nb7 Qf3 d8R Qfe4 Rd7 Qf3 Nd8 Qfe4 Bg6 Bf7 Qd6 Bg8 Bf7 Qc5 Qd2 Qce3 Rd3 Q3d4 Ra5 Qf3 Bc7 Qfe4 Rf5 Qf3 Qdf4 Qfe4 Kg3 h2 Ra5 h1Q Re5 Qhf3+ Kh2 Qee3 Rd5 Qfe4 Re5 Q3f3
QBR4Q/1n2K3/1pbq3N/QN1BB1k1/Q4R2/2q5/1bqBpPn1/r2b2rN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Kf4 c5 a4 e6 h4 c4 d4 c3 a5 c2 a6 g6 a7 b3 h6 b2 d6 Nc6 h5 Rb8 a8Q Qd7 d5 Nd8 h7 Qg7 d7 Ne7 h6 Rg8 h8Q Nec6 d6 Nb4 Na3 b1B Bd2 c1Q h7 Nc2 Ne2 Ne3 Qda4 Be4 Bg2 Bc6 Ng3 Qc2 Bd5 Ng2+ Kg4 e5 Nb5 e4 Rhc1 g5 Nh1 e3 Ra2 Ne6 d8N Nc5 d7 e2 Q8a5 b6 Nf7 Nb7 Nh6 Ra8 d8Q+ Be7 Ra3 Be6 Rf3 Ra7 Kh5 g4 Rf4 g3 Qb8 Ba3 Qa8 Qb2 Rc5 Qc2 Rcc4 Bb2 Rc5 Ke5 f6 Bf5 f7 Kf6 f8B Ra6 Rg4 Bd3 Re4 Bc4 Bd6 Bb3 Ng4+ Kf5 Bb8 Qgc3 Kh6 Be8 Rc8 Bc6 Qhd4 Rg7 h8B Rg6+ Kh7 Rg8 Rf4+ Kg5+ Qe4 Ra7 Nh6 Ra6 Qd4 Rg6 Bhe5 Ra7 Qab4 Ra1 Qba5 Nh4 Q8a7 Kh5 Qa2 g2 Qa8 g1Q Bg7 Qcb1 Kg8 Bd1 Kf7 Qbc2 Ke7 Qg4 Q2a6 Qf5 Qa3 Rg1 Q3a5 Kg5 Qee5 Ng2 Qda4 Kg6 Bh8 Kg5 Qg7+ Qg6 Qh7 Ne1 Bhe5 Ng2 Qh8 Qd6+
1NN3Rb/1Q1K1b2/P1B1q2N/1bB1rn2/nR5q/k2rppN1/1R1Rn3/2Q4B w - - 0 1 illegal: No possible last move
1n2r1R1/1b3qQn/PQ3p2/B2p1Bb1/1N4r1/1R2n2k/N1BKB1qN/2R2Rb1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 e4 Ke7 a4 Ke6 h4 g5 c4 b5 c6 d5 c5 b3 h6 g4 a5 f6 h5 b2 a6 b4 h7 g3 h6 b3 c7 g2 c6 Bb4+ Bd2 Bd7 c8B Bc5 c7 Nc6 Nf3 g1B Nh2 Ba7 Ba5 Nce7 Be2 Bac5 Nc3 b1N Na2 b2 Qb3 Bcd4 Qb6+ Nc6 Kd1 Bgf2 Rf1 Nd2 Rc1 Nf3 Kc2 Ng5 Kd2 Kf7 e6+ Kg6 e5 Kf5 e7 b1Q e8R Qe7 e6 Qf7 e7 Nb8 Rd8 Qe4 e8B Be6 Ba4 Qg2 Re8 Ne7 Bc2+ Kf4 Rd8 Kg3 Rg8 Nf5 Bd7 Kh3 c8N Bg3 Na7 Bg1 Nc6 Ne3 Ncb4 Bf4 Bc8 Bg4 B8f5 Ra7 Rb1 Rc7 Rb3 Rc4 Rc8 Re8 h8R Nh7 Rg8 Bg5 Rc6 Nf8 h7 Rf4 h8Q+ Nh7 Qg7 Rfe4 Bg6 Bc8 Rc7 Rc4 Bcf5+ Rg4 Rcc1 Bb7 Bc2 Qf2 Bgf5 Qg2
q3N3/1n1r1RBk/pnNQb3/b2N1q1r/1K2QR2/2p1QBn1/2P3bR/2R3Q1 w - - 0 1 illegal: No possible last move
K7/bQ1B3n/pB1r2B1/R2QQ2B/2p1bN2/1N1rQN1n/R2n2qP/2qk3r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Ke3 f5 Kd4 g5 e4 a6 b4 f4 b6 c6 d6 Ke6 Kc5 g3 d4 g4 b7 f3 d5+ Kd7 e6+ Ke8 b5 f2 e7 Kd7 e5 g2 b6 g3 Qe1 Ra7 Ra2 Rh6 Bb5 f1N Be3 Rg6 Nd2 Nh6 Nb3 Nd2 Nf3 g1Q Ba4 Qc7 e8B+ Kd8 e6 g2 Bd4 Nf7 Qe3 Ng5 Bf7 Bg7 d7 Ke7 d8N Nh3 Be8 Be5 d6+ Kf6 e7 Kf5 d7 Rd6 Ne6 Kg4 d8Q Bg3 Bb5 Bf2 Nf4 Bf5 Bg6 Be4 e8B Qf1 Ra5 g1R Be2 Qg2 Bd7+ Bf5 Qg8 Rb1 Rc1 Ra1 Rc3 Rh1 Rc2 Ra8 Qd5 Bg1 Kb4 c5+ Ka4 c4 Ra2 Qd8 Kb4 Qg5 Kc5 Bf2 Bc6 Be4 Bb5 Nc6 b8Q Ne7 b7 Ng8 Bc6 Ra7 Kb6 Nf6 Qe8 Bg1 b8Q Rad7 Qb7 Nh7 Ka7 Rd8 Bb6 Bf2 Qb5 Rd3 Qd5 Rd6 Ka8 Qh6 Qed4 Be3 Q4e5 Bg1 Bd8 Ba7 Bb6 Qg5 Nh5 Qe3 Nf4 Qeg1 Ba4 Qc1 Bd7+ Re6 Ng1+ Bf3 Q5b8 Nf2 Bd1 Nh3 Bb5 Rc6 Qe3 Rf6 Qbe5 Rd6 Nge2 Be4 Bd7+ Re6 Qec5 Kf3 Ned4+ Kf2 Bdh5 Ke1 Nf3+ Kd1 Qe3 Rd6
RbQ1N3/b2B3P/1B5B/K1RrRp2/1q1Rr1bB/Q4N2/rqp4n/k3n2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 h4 Kd6 d4 g5 Kd2 c5 Kc3 a5 e4 f5 h6 c4 h5 f3 h7 a4 b6 a3 b7 a2 e5+ Kc7 h6 Kb6 e6 Kb5 d6 g4 d7 g3 e7 g2 e8R f2 d5 Ra4 d6 Ra7 Nd2 Qg5 d8B Qh5 d7 Qg4 Qf3 Ka4 b5 Nc6 b8Q Ne5 b6 Nf6 b7 Nd3 Rh4 Bd6 Re5 Re8 h8Q Ne1 Bb6 Re7 Rc5 Re4 d8B Bh2 Qa8 Bb8 h7 Qf4 Qh3 Ng4 Ngf3 g1B Qh1 Nh2 Be7 Bd7 Qc8 Be8 Rb1 a1R Rbb5 Bh5 Re5 Ra2 Rbc5 Bg4 Bf6 Rd4 Ne4 Ra5 Nd6 Re4 Be2 f1Q Ne8 Qg2 Bf1 Qfg3 Bh6 Ka3 Qa6 Qf4 Bd3 Bc7 b8R Qf2 Ra8 Bb8 Bc2 Qg2 Ba4 Bf2 Rc7 Rd5 Rc5 Be3 Ba5 Qe2 Bd7 Bg1 Rc6 Bga7 Rc5 Rad2 Bfd8 Ka2 Kb4 Ka1 Bab6+ Ra2 Qa3 c3+ Ka5 Qb2 Bf6 c2 Be7 Qe3 Bf6 Qeb3 Be7 Bh5 Rf4 Bg4 Bh4 Re2 Rc4 Re4 Rd4 Qb4+
b3B1R1/3Q1qPr/Qq3Q1N/r1R1B2B/B3N3/2RK1pbq/pk6/R3nrn1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 Ke2 Kd6 b4 Ke5 d4+ Kd6 g4 a5 b6 c5 b5 f5 e5+ Ke7 d6+ Ke6 d7 Kd5 e6 Kc4 e7 h5 e8B h4 g6 a4 d5 h3 d6 a3 b7 h2 b6 a2 g5 Ra4 g7 Kb4 g6 c4 Nh3 c3 Kd3 f3 Be2 f4 Nf2 c2 Nc3 Kb3 Nce4 Nf6 g8B+ Nd5 g7 Nc6 b8Q Rh7 b7 Ra5 Qa7 Nd4 b8R+ Qb6 d8Q Bb7 d7 Ba8 Qf6 Bd6 Ng4 f2 d8R f1Q Bb2 Nf3 Nh6 Ng1 Rbc8 f3 Qa6 Bg3 Rc5 Qh3 Bgf7 Qf5 Bh5 Ne3 Be5 Ng2 Qd2 c1R Bd1+ Ka3 Bc2 Rf1 Bca4 Qfe6 Rac1 Qe7 Qd1 Qf7 R1c3+ Kb2 Bec6 Be1 Rg8 Bg3 Be8 Ne1+ Ke3 Nh3 Rg1 h1Q Qd7 Rf2 Rf1 Ng1 Kd4 Qh3 Ke3 Nd3 Ra1 Ne1 Kd4 Rf1 Ke3 Ng2+ Kd3 Ne1+
Qbnk2N1/6P1/B6q/n7/1K3BNR/Rnpp1R1r/qQRq2b1/B3B1Qr w - - 0 1 illegal: No proof kernel
2Nk1rRB/K5pQ/q1R2b2/q2P1r1b/3NNq1n/3Q4/RpQ4n/R1n1QB2 w - - 0 1 illegal: No possible last move, all moves rejected
1n6/n1kB2p1/R3Pb2/R6N/2bBBRBN/1Q1pR1q1/K2Q2r1/1Nrqnb2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 e4 f5 c4 d5 Kc2 Kd7 Kb3 f4 h4 f3 h6 d3 h5 d4 c5 f2 e6+ Kc7 e5 a4+ Ka2 a3 b4 d2 h7 d3 h6 Ba6 b6+ Kc8 b7+ Kc7 b5 Qd6 c6 Qd4 b6+ Kd8 c7+ Ke7 c8B Kd8 e7+ Ke8 Rh4 Qg4 Nh3 Qh5 Rf4 Qg5 Bg2 f1B Bb2 Nd7 b8Q Ndf6 b7 Nh5 Be4 Nhf6 Bd4 Nd7 Qe2 d1Q Qd2 Nb6 Bg4+ Nc8 Rf5 Kd7 e8B+ Kd8 e6 Be7 Nf4 Nf6 Nh5 Nd7 Ra5 Bb5 Ra6 Bf6 Ra5 Rg8 h8R Qf4 h7 Qg3 Ra6 Rf8 Ra5 Rf7 Rf8 Ra6 h8N Rc6 Ng6 Rc1 Nh4 Ba6 Qa8 Nb8 Bd7+ Kc7 Re5 Bb5 Qa4 Bc4+ Qb3 Na7 Ra5 Bg5 Ra6 Rf2 Rf3 Bf6 Rf4 Nbc6 b8R Rg2 Rb5 Nb8 Raa5 Qh3 Ra6 Qe1 Nc3 Qhg3 Rba5 Rd1 Rc1 Qe2 Ka1 a2 Kb2 a1N Nb1 Nc2 Ka2 Re1 Qc3 Qd2 Rd1 Qe2 Rd2 Qef3 Re2 Rc1 Qd2 Ne1 Re3 Qd1
1bbbr3/1R1B1pBR/nNN3kN/1N6/3Q2r1/R1np2PR/2qKB3/qn5Q w - - 0 1 illegal: No possible last move
2B1K1kB/3R1pP1/q1R3Qr/2n1b1p1/Bb1rQ2Q/R4bn1/N1rq1Q2/1N2B3 w - - 0 1 illegal: No proof kernel
BQ1Bk2n/1b1pq2R/Kn3qrN/2bR4/1NQ1N2r/2p1NP2/b4Q2/3QBn2 w - - 0 1 illegal: No proof kernel
1Brk2K1/1qnpq1Q1/pr1B3P/N1bQ3b/R3N1b1/R1N3BB/1n2q3/3N1R2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 Kd3 e5 Ke4 d3 h4 g4 b4 g3 f4 a6 c4 d2 h6 g2 f6 Nc6 Kf5 e4 Kg6 e3 h5 e2 h7 e1Q c5 Qe6 f5 Nh6 b6 Qe4 f7+ Ke7 b5 Qd5 f6+ Ke6 b7 Nb8 b6 Ng4 h6 Qa2 c6 Qa4 c7 Qd4 Rh4 Qe5 Nh3 g1Q Ra3 Qeh2 Nf2 Kd6 Nc3 Ke6 Bh3 Bd6 Kg7 Nc6 b8B Qe7 b7 Qgh1 Qf3 d1B Bf4 Bc5 Bg3 Be2 Nfd1 Nd4 Qg2 Re8 h8Q Nb5 Kh7 Bf3 Qg7 Rg8 Qd2 Qe2 f8B Ra7 f7 Ra8 Qgd4 Rg6 Qg7 Qhg2 Kg8 Qh1 Bf1 Ne5 Rha4 Nc4 Bh3+ Bg4 Qg5 Nb2 Qh5 Qf6 Bfd6 Qe7 f8R Qhe4 Rf1 Rf6 Ba7 Qd5 b8N Bb7 c8N Nc7 Nc6 Qh1 Ne5 Bf3 Nc6 Rb8 Na5 Rb6 Kh7 Rf8 Bb8 Rd8 Bde5 Qhg2 Nd6 Rc8 Nde4 Qh1 Bd6 Qhg2 Qg5 Qh1 Bg2 Bh5 Bh3+ Bfg4 Nd2 Qb7 Nde4 Qf6 Bdf4 Qf7 Qd5+ Ke7 Bd6+ Kd8 Kh8 Qf6 Kg8 Qe7
1N1K3q/2PRb3/Q1r1rQ2/1p1BRBN1/1n2n1b1/1N1n1bk1/R1q4p/2BB3R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 Kd3 d5 Kd4 b5 Ke5 h5 a4 e6 c4 d4 g4 d3 f4 d2 c6 h4 c5 b3 f6 Kg6 f7 h3 f5+ Kh7 f6 Kg6 c7 h2 c6 b2 a5 Rh3 a6 Qe8 a7 Rh8 Ra2 Rh3 Nf3 Rh6 Be2 Ne7 Kd6 e5 Qa4 d1N Nbd2 b1B Nb3 e4 Qa6 Bb7 c8B e3 Kc7 Nc3 Bd1 Bg7 f8Q e2 f7 e1Q Be6 Kh7 Bf5+ Ng6 Rd2 Be4 Rd7 Qd2 Qd6 Qc2 Qf6 Qe5+ Kd8 Bc8 c7 Beb7 f8R Ne4 Re8 Qa1 Re5 Nc6+ Ke8 Nb4 Kd8 Rb8 a8R Bd5 Ra7 Rb6 Ra8 Re6 Ra7 Kh8 Ra8 Nf4 g6 Bdb7 g5 Nfd3 Ra7 Kg8 Ra8 Bf8 g7 Rg6 Ra7 Kh7 g8N+ Bg7 Ne7 Bf8 Rdd5 Qd4 Nc6 Ba8 Nb8 Rc6 Qe6 Kg7 Qd6 Re6 g6 Kf6 g7 Qdc3 g8B Q3b2 Nfd2 Kg5 Nf3+ Kh5 Ng5+ Kh4 Qe7 Kg3 Rd7 Bab7 Rc5 Qh8 Re5 Ba8 Qf6 Red6 Qb6 Rc4 Bfg4 Nec5 Ra2 Bf3 Bd5 Ne4 Qa6 Rb6 Rf7 Be6 Bh5 Beg4 Bg6 Re6 Rd7 Rcc6 Bf5 Be7#
1k1K2Nn/nbp2r2/1q1NBr2/1qN1RQ2/2NB3p/5RqQ/2R1RrbP/5B2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kc3 Kd7 Kb4 h5 Kc5 a5 e4 g5 b4 g4 d4 h4 d6 a4 f5 g3 b6 g2 d5 a3 e5 a2 b5 Nc6 f6 Rb8 b7 Nd4 e6+ Ke8 b6 Rh7 f7+ Kf8 e7+ Kg7 e8B Kf6 f8R+ Ke5 d7 Rg7 d6 Re7 Nc3 Ne2 Kc6 Nf6 Qc2 Nh5 Qf5+ Kd4 Be3+ Kc4 Nb5 Ra8 b8R Ra6 Rc1+ Kb4 Bd4 Ka5 Rc2 a1Q Bf7 Neg3 Be6 Nf4 Rf7 Qg8 d8Q Qg6 d7 Qb2 Qe8 Nge2 d8N Nc3 Qd7 Qh5 Nd6+ Nb5 Qh3 Ng6 N8b7+ Ka4 Rf4 Rf7 Nc5+ Ka5 Re4 Qg5 Re5 Nh8 Ree2 Qg3 Re5 Ra7 b7 Qb3 Ra8 Qb4 b8N Ra6+ Kd5 Kb6 Nc6 Qa5 Ne7 Na7 Ng8 Qb5 Qf5 Ra2 Qh3 Ba6 Rf8 Rf6 Qh7 Rb2 Q7f5 Ra2 Ne2 g1Q Nf4 Rf7 Ng2 Rf6 Bd3 f1B Ne3 Bg2 Be2 Q1f2 Re1 Qg1 Bf1 f2+ Re4 Rf7 Ree2 Bc8 Bd7 Ba6 Ke6 Bb7 Re5 Rf6+ Ke7 Rb2 Red2 Ra2 Kd8 Rf7 Bd3 f1R Be6 Rf2 Be2 Ra6 Nec4+ Kc6 Qh5 Qgb1 Bf1 Qb6 Rde2 Q1b5 Nh6 R2f6 Q5f5 Ra2 Ng8 Rb2 Re8 Ra2 R2e3 Rb2 Rf3 Ra2 Rc1 Rf2 Rc2 Ng6 Ree2 Nh8 Bc8 Ba6 Nb2 Qg6 R8e5 Qg3 Be6 Bc8 Nbc4 Ba6 Nd7 Bc8 Ne8 Kb7 Nc5+ Kb8 Ned6 Bb7
bN1K1Q2/2p1BQ1b/B1R2p2/R1B1rRr1/5n1k/R1b3N1/Q3r2P/4qBnq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 e4 g6 d4 a4 b4 a3 d6 a2 h6 Kh4 d7 f6+ Ke6 g5 d5 g4 b6 f3 d6 f2 h7 g3 b5 g2 b7 Bg7 b6 Ra6 e5 Nc6 b8Q Bb7 Qd5 Na7 Ba3 Bf8 Ne2 g1R Nd4 Bg7 Qa8 Kg5 Nc3 Rg2 Nce2 Kh5 Bc5 Rg4 Nc6 Re4 Nb8 Bc6 b7 Qc8 Ng3+ Kh4 Rc1 Qf8 d8Q a1Q d7 Qe8+ Qe7 Ra2 d8B Ra5 Qa2 Bf8 Rc3 Qe1 Ra3 Re2 Rg1 Qh5 Qf7 Nb5 Bde7 Nc3 Rg2 Bd5+ Kd7 Qf3 e6 Rb5 Rg1 Qh1 Kd8 Re5 Ra5 Ne2 Rg2 Ng1 Ra3 Rb3 Ba6 f1B Rf2 Bd3 Rf5 Rb2 Ra5 Nh6 Ra3 Rg8 h8R Rg5 Rg8 Rh5 Rgg5 Ng4 Rf1 Bh6 Nd7 Qc3 b8R Rb4 Ba7 Qg2 Rb6 Qcd2 Bd6 Ne3 e7 Qh1 e8B Re6 Qc6 Rg4 Qc5 Qe1 Nb8 Ng2 Beb5 Ba8 Rc6 Bh7 Rd5 Rge4 Rff5 R6e5 Bf1 Re2 Qb4+ Bf4 Rda5 Rg5 Qc5 Bd2 Bf8 R2e3 Qce7 Nf4 Bc5 Bc3 Qee8 Qe2 Bfe7 Qe1 Qef8 Re2
2b5/k1pB2BN/1nnRPK2/Br6/1q1rR1pn/2q1N3/2R2Q2/Q1RQQrb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 a5 Kg4 g5 Kf5 f6 e4 g4 b4 f3 d4 a4 h4 f2 b6 a3 d6 Kc6+ d7 Kb7 d5 a2 e5 Ra7 h6 Ra3 h5 Ra6 d6 Ka8 h7 Ra4 b5 Rd4 e6 Ra4 b7+ Ka7 h6 Ra6 Na3 Ra4 Nc4 Qe8 d8Q Qd7 b6+ Ka6 Nf3 Ra3 Rh2 Qe8 d7 Ra4 Ng5 Bb4 Bd2 Bc3 Rc1 a1Q Ne3+ Rc4 Qe1 Nc6 b8Q Qe7 b7 Bd4 Ba5 Qb4 Bg2 f1N Qa7+ Kb5 Bf3 Qac3 Rhc2 Nd2 b8R+ Bb6 Kg6 Nge7+ Kf7 Rg8 h8B f5 h7 f4 Bg7 Ng6 h8Q Nh4 Nh7 Rd4 Kf6 Nc4 Be4 f3 Bg6 f2 Be8 Ka4 Rb7 Bc5 Rb5 Bb6 Re5 Bc5 Re4 Kb5 Qe7 Nb6 d8R Rf8+ Qf7 Rg8 Bd7 Re8 Qh5 f1R+ Qf5 Rg8 Qff2 Re8 Qb8 Ka6 Qd1 Nc4 Qb5+ Ka7 Qe1 Nb6 Qbe2 Bd6 Q2d1 Bh2 Qf8 Bg1 Qc5 Qb1 Qa3 Qbb4 Qa1 Rh8 Be8 Rg8 Rd6 Rh8 Bd7 Rg8 Bh6 Rg5 Bg7 Rb5
4qR1B/nP1N2bb/Rq2r1r1/1BNp1Q1N/p3Q1nn/2B5/3K3k/bR2N1R1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 Kf6 b4 a5 c4 d5 b6 g5 h6 e5 h7 e4 c5 e3 c6 e2 b7 d3 h5 g4 h6 g3 b5 g2 c7 Nd7 b8R Ba6 c8Q Ba3 b6 Nf8 Nf3 g1N Qdc2 Ne7 Bd2 Nc6 Nc3 Ng6 Na4 Na7 Bc3+ Ne5 Nc5 Qe8 Kd2 Rg8 h8N Rg6 h7 Bb2 Ne1 a4 b7 Bc4 Rb1 Ba1 Qd7 Bb5 Rd8 Rc8 Rh6 Rc6 Qc8 Qe7 Rg8 Re6 Rg7 Qe8 Rg8 Ke7 f6+ Kd6 f5 Ng4 f7 Bc4 f8N Nf3+ Kc1 Bb5 f6 Nh4 f7 Bd7 Kd2 Bb5 Ba5 Ke5 Bc3+ Kf4 Nfd7 Kg3 f8R Kh2 Rg7 Rg5 Ng6 Bc4 Nf4 Rgg6 h8B Bb3 Neg2 e1B+ Kc1 Bg3 Nh5 Be5 Ne1+ d2+ Kd1 Ba2 Bb5 Bd4 Rgg8 Bg7 Qe4 Bc4 Rf1 Ba2 Rg1 Bb3+ Ke2 Bc2 Rf8 d1Q+ Kf1 Qc1 Ke2 Qb2 Kd2 Ne3 Qd8 Ng4 Qg5 Qb4 Qgf5 Rg5 Rhf6 Rg6 Bc4 Qb6 Bb5 Re5 Rc6 Ree6 Rd6 Qbd8 Ra6 Qb6 Qg5 Bd3 Qgf5 Qd6 Qf6 Rh6 Qed4 Bh7 Qe4 Qb6 Qff5 Rhg6
3N2N1/Rpbk1r1Q/B1RB2pb/5rNP/2q3Rn/N1q3RK/2Q5/nb3Bq1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 c5 Kg2 f5 e4 g6 d4 b3 h4 b2 a4 f4 h6 c4 h5 c3 d6 c2 d7+ Ke7 d5 f3+ Kh3 f2 a5 Bg7 d6+ Ke6 h7 Bf6 a6 Bg7 a7 Qg5 d8N+ Kd7 e6+ Ke8 d7+ Ke7 e5 Na6 Ra3 Qf4 Nf3 Nh6 Ng5 Qd2 Rg3 Rf8 h8Q Qb4 Qh7 Qd4 Bf4 c1B Rhg1 Qc3 Na3 b1Q Qc2 Rf7 Rg2 Rb8 a8R Nb4 Ra7 Nf5 Ba6 f1Q Nc6+ Kf8 d8N Ke8 e7 Kd7 e8R Nh4 Re6 Qfc4 Ne7 Bh6 Ng8 Bd2 Rf6 Qg1 Rc6 Be3 Rg4 Bb6+ R2g3 Bc7 e6+ Ke8 e7 Kd7 Qa2 Nc2 Bd6 Na1 Qd2 Ke8 Qe2 Bf5 Qc2 Kd7 e8B+ Kc8 Qd2 Bb1 Qc2 Rf5 Bf7 Kd7 Bd5+ Rf7 Bg2 Rc8 Bf1 Ra8 Nde6 Re8 Nd8 Rf8 Be7 Rf5 Bd6+ R8f7
2nN1K2/P1kBq2Q/p4R2/q1rn3N/r1bRB3/BN1bp1q1/5N2/bR3QB1 w - - 0 1 illegal: No proof kernel
kB3N2/p1bB3N/1bn3p1/3Q2Pq/1r1B1R1r/R3nR1q/1Q1Kq3/r1Q3BR w - - 0 1 illegal: No extended proof kernel
1Br5/p3q2N/2R1Qp1q/1b1NbN2/kN1r4/B1P1KQQ1/nR2nQ2/1b3B1r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 d5 b4 Kd7 e4 g5 h4 f6 h6 g4 h5 d3 b6 Kc6 h7 Kb5 h6 g3+ Ke3 g2 e6 Bd7 e7 Bc8 e8Q+ Nc6 b7 Rb8 e5 Be7 e6 Bd6 e7 Be5 Ba3 Bb2 Nh3 g1R Nc3+ Kb6 b5 Ka5 b6 d2 Ra2 Bf5 Qf3 d1Q Ng5 Ba1 Rb2 Rc8 b8B Rg4 b7 Nb4 Qf7 Rh4 e8N Rd4 Nd6 Ne7 Qe6 Nec6 Rh4 Be4 Nf5 Na2 Qf2 Qh5 Rh3 Rg8 h8Q Qe7 h7 Qh6 Qg7 Rh8 Qg6 Bd3 Qh5 Bb5 Qhf3 Rh4 Rh1 Nd4 Rh2 Rhd8 h8Q Ne2 Qg8 Rh3 Rg2 Rh1 Rg4 Rd7 Rc4 Rd6 Rc6 d4+ Ke4 d3 Nd5 d2 Nh7 d1B Qgg3 Nf4 Ke3 Ka4 Rb1 Bc3 Rb2 Be5 c3 Rd7 Bc7 Rd6 b8N Bc2 Na6 Bb1 Bb8 Rdd8 Nab4 Rd7 Nc7 Rd4 Ncd5 Ne2+
4b1qr/b5B1/2BN1PN1/1pk1B3/b1BR1Q1N/4K2R/N2nr1pn/Qb2b1Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 d5 a4 Kd7 c4 Kc6 h4 b5 f4 g5 a5 e5 f6 b3 a6 e4 a7 g4 h6 b2 f5 d4 f7 d3+ Ke3 g3 h7 d2 h5 g2 h6 Nd7 Ra4 Qb6 Nc3 b1B Nf3 Ba2 Rh3 Bg7 f8N Qb7 Bb2 Ne7 Nh4 Bb1 Nfg6 Rb8 a8B Nf6 Na2 Bf8 Be5 Neg8 Bd3 Bd6 Qg1 d1B Rb4 Ba4 Be2 Kc7 c6 Kb6 c7 Qd5 Bc6 Bd7 c8Q Kc5 Qc7 Rf8 Bd3 Be8 Bf1 Nh5 Bg7 Be7 Qf4 Ng3 Be2 Nf6 Bd3 Rhg8 h8Q Rf7 h7 Nf1+ Kf2 Nd2 Ke3 Bd8 Be2 Bb6 Bf1 Ba7 Be2 Kb6 c5+ Ka5 Bc4 Ng4+ Ke2 Nh2 Ke3 Qd8 Be5 Rf6 Qg7 Rff8 h8B Qd5 Qf6 Ka6 Bg7 Rh8 Bb8 Ka5 Qa1 Qg8 Bbe5 Ka6 Bb3 Rf6 Rd4 Rf8 Bc4 Rf7 B6d5 Ka5 c6 Kb6 c7 Kc5 c8N Rf6 Ke2 e3 Bc6 Rf7 Nd6 Rf8 Ke1 e2 Kf2 e1B+ Ke3 Rf7 Bh6 Rfh7 Bhg7 Rh5 f6 Rf5 Qe4 Rf2 Qf4 Re2+
1Q1n4/Q2RB2N/RnNp2B1/B6B/1r1r1bn1/6pP/K1b5/Nnq1knNQ w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 b4 Kf6 c4 Kg5 Kc2+ Kh4 Kb3 g5 f4 a5 b6 e5 b7 e4 f6 e3 f7 g4 b5 d6 h6 d3 b6 e2 f5 e1N f6 a4+ Ka2 d2 h7 a3 c5 Nc6 b8Q Nc2 b7 Nh6 Be2 Bf5 Qa7 Ne3 b8N Qc7 h3 Bg7 f8B Kg3 f7 Kf2 Be7 g3 f8N Nd8 c6 Bc2 Bh5 Be5 Bg6 Qc8 c7 Ng4 Nc6 Rb8 Bb2 Rb4 Bc3 Rg8 h8Q Bf4 Nh7 Rf8 Qc1 d1N Nd2 Nb2 Nb3 Na4 Bh5 Rd4 Ba5 Nf1 Rb1 Re8 Na1 Nb6 Rb5 Rf8 Rf5 Rg8 Rf7 Rg5 Qg8 Rb5 Bg6 Rbb4 Qf8 Qb8 c8B Qc7 Bcf5 Qc8 Bh5 Qc7 Qd1 Qc8 Qf3+ Ke1 Bfg6 Qc7 Ne5 Qc3 Nc6 Qe3 Rh2 Qc1 Qh1 Qd2 Nb3 Qd3 Bh4 Ne6 Rd7 Qe3 Ka1 a2 Be7 Bd3 Qfb8 Nd8 Kb2 a1N Rg2 Na8 Bc7 Nc2 Rf2 Na3 Rf3 Bc2 Ka2 Nb7 Na1 Nb1 Bcd8 Qd2 Ra3 Qc1 Bc7 Nd8 Ra6 Nfd2 Bb6 Nf1 Ba5 Nb6
2nQ1n1r/nn1K2rk/p1Nb2NB/2RN4/P2n1R2/4q1R1/1RB1pB1b/2QN4 w - - 0 1 illegal: No possible last move
K2b2QR/1bR3P1/B2rRB2/1RNb3N/BbkN4/1nB2p2/5rpq/2b1n1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
B4NB1/Pn1p1n1Q/3RNR1R/3r1bb1/2N1qQb1/8/1b3Bbp/k2N1rRK w - - 0 1 illegal: No possible last move, all moves rejected
3kNKbr/p2B1Q1P/p5r1/4Q2r/1RNnN1R1/5q1N/1bQQr2B/nB3r2 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 h3 a5 Bd7 a6 bxa6 gxh3 Bg4 h4 Bh3 h5 Bc8 Kf2 g5 Kg3 c5 b4 f5 e4 g4 Kf4 c4 h4 c3 d4 c2 b5 g3 h6 g2 h5 Bd6 h7 Nf6 Kg5 f4 Kh6 f3 Kg7 f2 e6 Qa5 e7 Bc7 e5 Ng8 d6 Qd2 d5 Bg4 h6 Nc6 b6 Qe1 b7 Bf3 b8N Qc3 Nd2 Bh5 Nc4 Bg6 Nd7 Rc8 Bf4 c1R Ra4 Qd3 Bh2 Be4 Nc5 Bf3 Rb4 Qc3 Nh3 Nd8 Rg1 Qa3 Qc2 Bb6 Bd3 f1R Ne4 Kd7 e8N Nb7 e6+ Kd8 d7 Bd4+ Kf8 Qc3 Qb3 Rf2 Bb1 Nc5 Qc2 Be5 N8d6 Rcf1 e7+ Kc7+ e8B Re2 Nb7 Nb3 d8Q+ Kb8 d6 Na1 Qh4 Rc5 d7 Kc7 Qf4 Qa3 Nbd6 Bb2 Qf6 Rh5 Qf7 Bg4 Ba2 Qf3 Bb1 Kc6 d8Q+ Bd7 Qa8+ Kc7 Qd5 Kd8 Qdd2 Be6 Bd7 Bd5 Rh1 g1R Ne8 Rg6 Rg1 Rf6 Rg4 Ne7+ Kg7 Rf8 h8Q Nc6 h7 Nd4 Qhg8 Rc6 Qf5 Re6 Qgf7 Rh8 Qe5 Rd6 Qg6 Bg8 Qf7 Re6 Kf8 Rg6
k3KQRq/3Nb1Br/B1N1N3/2b2r1b/1p3Nr1/2P1b3/RnB1Rpn1/3R2Q1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 e5 dxc5 Rh6 fxe5 Rh8 Kf2 b5 Ke3 g5 Kd4 d5 e4 Kd7 a4 Kc7 h4 Kb7 h5 f5 e6 b4 Ke5 g3 a6+ Ka7 c6 g2 a5 g4 c3 f4 h6 g3 e7 f3 e8N d4 h7 f2 c7 d3 Nd2 Be6 c8Q Bh6 Ng7 Qe7 Nh3 g1B Qf8 g2 Nf4 Bc4+ Nge6 Bb5 Ra2 Qf6+ Kd6 Be8 e5 Ne7 Nf3 d2 Nd4 Nbc6 Qg4 Bf7 Kd7 d1R Bb5 Rg8 h8R Ng6 Ba4 Bg5 Bc2 Bh2 Be3 Rd3 Rd1 g1B Qg3 Rg7 Rg8 Rh7 Qg2 Re8 Bd2 Ka8 a7 Rf3 Qg3 Nce7 Nc6 Nf5 Be3 Rb8 Bd4 Qh8 Qg2 Ngh4 Qf1 Kb7 a8N Nd6 Nb6 Nc4 Qe1 Bg3 Qf1 B1h2 Qg1 Bh6 Ke7 Ng2 Nd7 Rd8 a6+ Ka8 a7 Nb2 Nd5 Be3 Ndf4 Kb7 a8R Rc8 R8a3 Rc7 Ra8 Rg7 Re8 Bh5+ Kd8 Bh4+ Re7 Rg6 Ke8 Ne1 Ng5 Ng2 e6 B2g3 Bg7 Bh2 Rf7 B2g3 e7 Bc5 Nge6 Rg4 Ng6 Bg5 Rf5 B3f4 Re5 Bd2 Re2 Rf7 Ngf4 Bde3 Kd8 Rf6 e8B Bh4 Beg6 Rf5+ Ke8 Bhe7 Bd3 Bed6 Ba6+ Ka8 Nde5 Rcf7 Nd7 Be7 Bh7 R5f6 Be4 Rh6 Bg6 Rh7 Bc2 Rf5+
KQ2Q3/Q1n5/1B2r3/1qBr1kb1/1pN2b1Q/1PRnBpb1/5N2/1RNrB2b w - - 0 1 illegal: No extended proof kernel
2Kbnn1N/5R2/k3rQrQ/bn4B1/PqQ3b1/1Np1N3/1p3B1R/B2Nn2B w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 e5 Ke4 g5 f4 b5 h4 c5 d4 Kc7 a4 Kb6 h6 b3 h7 b2 f6 c4 d6 g4 Kd5 b4 f7 g3 h5 g2 h6 e4 f5 e3 f6 e2 d7 e1N Ke6 b3 d5 Ka6 d6 Ra7 Nc3 b1N Qd4 Nd2 Nge2 g1B Bg2 Bh2 Nd5 Ne4 Be3 Ka5 Nec3 Bg1 Rh2 Nc6 Bh1 Nc2 Rf1 Nd2 Nd1 Be7 f8Q Ne5 f7 Nf6 Qg8 Bf2 f8Q Ra6 Qgf7 Rg8 h8B Bh4 h7 Qb6 Qh6 Nb1 Rf3 Nc3 Bf2 Rg4 N5e3 Qb4 Bg7 Ne1 h8N Bg3 Qfg6 Ne8 Rf7 Nb5 Qc5 Bb7 d8N Nd7 Ba1 c3 Qc4 b2 Qf6 Rg6 Nc6+ Kb6 Nd4 Bf3 Nb3 Nf8+ Kf5 Ka7 d7 Rc6 d8B Bc7 Qfd4+ Ka6 Qdg7 Bc5 Bg5 Ba5 Qf6 Bg4+ Ke5 Re6+ Kd5 Bd6 Kc6 Nh7 Kd7 Be7 Kc8 Nf8 Qh7 Bed8 Qh4 Bdb6 Qh6 Bd8
3b1nK1/nQ6/1NB1R1nB/k2Pb3/3NB1br/q2RB1pN/1r3p1b/1Q1R1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kf5 g5 d4 c4 h4 f3 b4 f6 Kg6 Kc7 Kf7 Kb6 e4 f2 d6 a4 d5 c3 d7 a3 h6 c2 h7 g4 h5 g3 e5 a2 e6 f5 h6 f4 e7 f3 e8B Ra7 Nd2 Ra3 Bd3 f1N Nh3 Qh4 d8N Qg4 Bc6 Ra5 Ne6 Nd7 Nd4 Bb7 Be4 Ne3 Nf1 Nc4 Be3 Ne7 Qb1 c1B Rh2 Na3 Rd2 Ng6 Rd3 Be7 Kg7 Rb8 h8R Ra4 h7 Ba6 Re8 Ndf8 h8B Bd8 Kg8 Bc8 Bg7 Qg5 Re6 Qe7 Bgh6 Qa7 Rf6 Bg4 Re6 Bd2 Qb3 Qa8 Rd1 a1B Qb1 Be1 Bf5 Bf2 Be4 Ka7 b6+ Ka6 b7 Bg1 b5+ Ka5 b6 f2 R1d2 Bh2 Rd1 Rc8 b8Q Nb5 b7 Na7 Qb3 Rc7 Qb1 Rh7 Qc8 Rb4 b8N Rb5 Qb7 Rb2 Bhg5 Rh4 Nd7 Qb8 Nb6 Qd6 Bgf4 Qa3 Bh6 Ra2 Nf5 Be5 Nd4 Rb2
7K/1nR2rq1/Q2n1rp1/2Qb4/1pB1N2k/R4Rn1/2P2N1B/B1nQbrRQ w - - 0 1 illegal: No possible last move
1R2bQ2/2q2r2/1b3Rp1/B1bb1Qnp/2P5/n4B1Q/B1N2kN1/rBRKR1n1 w - - 0 1 illegal: No proof kernel
1BBn2b1/Krr1NN2/P1B1N2p/2r1Q3/4b2k/1RR3qb/Qp1Nn2R/4b2B w - - 0 1 illegal: No possible last move, all moves rejected
2rb1BQ1/qbb5/p2PN1p1/1BQ5/1B4nn/R3B2k/nQ2R1b1/rNR1K1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 c5 d4 f5 e4 c4 h6 g6 b6 a6 e5 c3 h7 f3 e6+ Kd6 h5 c2 e7 f4 e8R Qd7 b7 Qd8 h6 Bd7 b5 Qc7 b6 Bc8 Re2 Nf6 Nh3 Nc6 b8B Bb7 Be3 c1B Ng5 Nb4 Ne6 Ng4 Ra3 Na2 Ba7 Kd7 d6 Rc8 d5 Be7 Qc2 Rhf8 h8B Bd8 h7 Qc5 Bg7 f2+ Kd1 f3 h8Q Bd2 Qh2 Ba5 Qg1 Rf4 Bh6 Ra4 Bf8 Qc7 Qc5 Qb8 Bh3 f1N Bd2 f2 Bb4 Nfh2 Bf1 Qa8 Kd2 Nf3+ Kd1 Bc6 b7 Nh4 b8Q Bac7 Bb6 Qa7 Kd2 Ke8 d7+ Kf7 d6 Kf6 Kd1 Bb7 Kd2 Be7 d8Q Ra5 Qe8 Bed8 Qeb5 Bd5 Qbc4 Kf5 Qc3 Ra4 Qb2 Ra5 Rhh3 Ra4 Rhc3 Ra5 Rc1 Ra4 Bh3 f1B Ke1 Bg2 Qa8 Bf3 Bf1 Bg2 Qcc3 Bb7 Be3 Nf2 Qc5+ Kg4 Rec2 Kh3 Bb5 Ng4 Re2 Bbf3 Qac6 Be4 Qe8 Bb7 Qf7 Ra5 Qg8 Nc3 Rb3 Ra1 Ra3 Na2
b1rQ1QBR/4Q1p1/2BnN3/1B2rR2/1p1Bnn1n/b1q1P1R1/3R3N/1K2k1r1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 h4 f5 d4 b5 Kd2 c5 Kc2 c4 e3 c3 e6+ Kd6 a5 f4 e7 f3 e8B f2 h6 Qg5 h7 Qf4 a6 Qg3 h5 Nc6 a7 Rb8 a8B Rb7 h6 Ra7 Na3 b3+ Kb1 b2 Bc4 f1N Nf3 Nh2 Nc2 Bb7 Rg1 Nce7 Ra5 Qe1 Rg3 Nf6 Bc6 Rg8 h8R Nf5 h7 Ne4 Qd2 Be7 Qf2 Rc8 Rd8+ Kc7 h8R Kb6 Bf1 Ba3 d6 b4 d7 Nfd6 Rf5 Ra5 d5 Kc5 Bfb5 Qd2 Ncd4 c2+ Ka2 b1N Bb2 c1R Ka1 Rg1 Ne6+ Kb6 Bf6 Nbc3+ Qf1 Ne2 Kb1 Nf4 Ba1 Ng4 Nh2 Ne5 Bc3 Neg6 Be5 Nf7 d6 Qc3 Bd5 Nh4 Bf6 Ba6 Bac6 Bb7 Bb3 Ba8 B3c4 Ra7 Bd4+ Ka5 Rde8 Rb7 d8Q+ Rb6 d7 Nfd6 Qe7 Rbb8 Ba6+ Rb5 d8Q+ Ka4 Ref8 Bb2 R8f7 Ka3 R7f6 Re5 Bab5 Bc1 Rfg6 Bb2 Rg2 Bc1 R6g3 Bb2 Be2 Kb3 Bh5 Bc1 Bf7 Ba3 Bg8 Ne2 Ba4+ Kc4 Rgf2 Kd3 Bab5+ Kd2 Rfg2 Bc1 Qf4 Ke1 Qf3 Nf4 Rd2 Nf2 Qh5 Nfe4 Qhe8 Bb2 Q8f8 Ba3
2Nk4/2N2p2/1QK3n1/1NB1n1rq/bBRPB2Q/1b2rb2/4p1r1/BRb1QQ2 w - - 0 1 illegal: No proof kernel
BB4r1/NnnNp1Bp/7K/R3QRBn/bR1P2Q1/nrq2Rb1/k4b2/5Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 d4 c5 f4 a5 g4 h3 d6 c4 d7 a4 f6 c3 f5 c2 b6 Kb3 b7 h2 f7 a3 f6 a2 Na3 Qb6 d8R Bf5 Rd5 Qd6 Nf3 Ra5 Ne5 Be4 Nd7 Bg6 Rf5 Qb6 Nb5 Ra6 Bg2 Nc6 b8B Qc7 Qf1 Ra3 Na7 Nd8 Ba8 Bg7 f8B Nb7 f7 Be5 Bg7 Nf6 f8R Nd5 Kh6 Be8 g5 Qc3 g6 Bg3 Bg5 c1B Rf3 Be3 R8f5 Rg8 Rg1 Ka4 b4 Kb3 b5 h1N b6 Nc7 Rg2 Bg1 Rd2 B1f2 Rb2+ Ka4 Rbb5 Rb3 Ra5+ Kb4 Rb1 a1N Rb2 Nc2 Rb1 Nd6 b7 Na3 Ne5 Ba4 Nd7 Nac4 Rb2 Ka3 Rb1 Rb5 Rb4 Rb6 Bf8 Ka2 g7 Rh8 g8Q Rb5 Qe6 Rg8 Qe4 Na3 Qg4 Rb6 Rc4 Rb3 Rb4 Be5 Bg7 Ng3 Bf8 Nh5 Bg7 Na6 Bc7 Bh2 b8Q Bhg3 Qbb5 Nb7 Bb8 Nc7 Qc5 Rb1 Qe5 Rb3
q4Nbn/R2P1nbQ/1rK4b/1Q3p2/N1pN3r/QBB1R2B/3N1k2/3br2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 b4 Kg4 d4 g5 h4 Kg3 h6 c5 h5 a5 h7 a4 h6 g4 b6 f3 b7 a3 b5 a2 d6 f5+ Kd5 c4 e4 f2 d7 Bg7 b6 Nc6 b8Q+ Ne5 b7 Qh4 d8Q Ra3 Qe7 Qh2 Bh3 f1B Ne2+ Kf2 Nec3 g3 Bd2 g2 Na4 g1B Bc3 Nf3 e5 Be6+ Kc6 Bf8 d5 Bd3 d6 Qg2 Nd2 Bf7 e6 Bh2 Re1 Qg6 Re3 Be5 Qh1 Beg7 d7 Rb3 Qa3 Qh5 e7 Nh4 e8B Be2 Qe5 Qg5 b8N Bd1 Qb5 Be6 Bg6 Qd8 Bh5 Ng6 Be2 Qe8 Bd3 Bf7 Bc2 Rb4 Bb3 Qe4+ Kc7 Qa8 Nc6 Bd5 Nd4 Bf7 Qbd5 Rb7+ Kc6 Be6 Qb5 Bf7 Rb1 a1R Rc1 Nf6 Rc2 Ne4 Ra2 Rc1 Ra1 Nd6 Ra2 Be6 Ra1 Nf7 Ra2 Rg8 h8Q Rb1 Qh7 Ngh8 Qg6 Ra1 h7 Bh6 Qh5 Rg4 Qg6 Rh4 Qg8 Ng6 h8N Bfg7 Qh7 Bg4 Qbb4 Re1 Qb5 Bd1 Ra1 Ng5 Ra2 Bg8 Ra1 Nf8 Ng6 Nf7 Nf4 Ng6 Nfe6 Ngh8 Nf8 Rg4 Ra2 Rh4 Qb2 Be2 Nb6 Bd1 Ra7 Bg5 Qa3 B5h6 Na4 Rb6+
4R3/1rp1K3/1BRN1RB1/n7/2N2bpr/3Pq1Q1/b1N1RB1Q/1B1rnknn w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 g5 b4 a5 d6 f5 b6 f3 d7 g4 Ke6 f4 e4+ Kd4 b5 f2 b7 f3 e5 a4 b6 a3 h6 a2 h5 Ra7 h7 Nh6 Bd3 f1N Na3 f2 Rh2 Nf7 h6 Bb4 Qb3 Bd6 Ne2+ Kc5 Nc4 Ra4 Bb1 Ra3 Qg3 Ra5 d3 Ne3 Nd4 f1N Re2 Nc6 b8R Ra8 b7 Ne7 Nc2 Ng2 Bd2 Ne1 Ba5 Qe8 Bb6+ Kb5 Kf6 Ra7 d8B Nc6 e6 Na5 e7 Bf4 Ra8 Be6 b8R Rb7 Ra6 Ng5 Rba8 Qd7 e8B Nh3 Bg6 Qd4+ Ke7 Ng1 Rc8 Qe3 Rb8 Rf8 h8N Rf5 h7 Rh5 Rba8 Rh4 Nf7 Kc6 h8Q Kd5 Qf2 Ng3 Nfd6 Nh1 Qg3 Bg5+ Qf6 Bh6 Qff2 Bf4 Qfh2 Qe5 Bf2 Qe3 Rc6 Bg8+ Kf8 Be6 Bg5 Bf7 Re8 Be6 Nb4+ Kd4 Ke7 Nc2 Na3 Be5 Be1 Qf3 Bf6 Ne3 Bc2 Ng2 Rc1 a1R Rd1 Rc1 Bb1 Ba2 Nac4 Qf4 Bh8 Qd2 Nc2+ Kc3 Bf2 Qe3 Rf1 Rd1 Bf6 Qg5 Bb6 Ne1 Rd2 Qf4 Bg5 Qd4 Rff8 Qc5 Be3 Bf4 Bf2 Qd4 Re2 Qc5 Re5 Qd4 N4e3+ Kd2 Rf6 Ke2 Nec4+ Kf1 Re2 Qe3+
K1nk4/Q2rb3/B5q1/3B1QB1/nb1NB1pP/R7/1Qbp1rb1/qN3NNR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kf3 f5 c4 d5 h4 a5 b4 f4 e4 d3 e6 d2 e5 a4 e7 a3 h6 d4 Ke4 f3 c5 g4 c6 d3 h7 a2 c7 f2 b6 Nd7 Kd5 Ndf6+ Kc6 Nd5 b5 Ra7 b7 Bh6 b8Q Ra5 b6 Bf5 Kb7 Bf8 c8N Nh6 Qa7 Rc5 Ka8 Bd7 b7 Rc2 b8N Ng8 Nb6 Nc3 Qf3 d1Q Qf5 Na4 Nc4 Qb6 Bg5 Qg6 Ne3 d2 Bg2 f1B Bd5 Bg2 Nf1 Rc7 Nc6 Bc8 Nd4 Rd7 Be4 Ba6 Bd5 Bd3 Be4 Bc2 Bd5 Nf6 Be4 Rg8 h8Q Nd5 Qhf6 Rg7 Qfb6 Rf7 Qb2 Ndc3 Bd5 Nb5 Be4 Nd6 Bd5 Rf6 Be4 Kf7 e8B+ Ke7 e6 Kd8 Bf7 Nc8 Bg8 Bb4 e7+ Ke8 Qd5 Rf2 Qf5 Qe2 Bgd5 Qea6 Rh3 Qa5 Ra3 Qaa6 Nc3 Qa5 Rc1 a1B Nb1 Qaa6 Ndf3 Nd6 Qg7 Qb5 Nh3 Qf6 Re1 Qb6 Ne3 Nc5 Rh1 Bac3 Nhg1 Nc8 Nf1 Qd4 Qge5 Na4 Qg7 Bd6 Qgf6 Bcb4 Q6e5 Qa1 Qb2 Bdc5 Nd4 Rb7 Bf4 Qe6 Bg5 Kd7 e8B+ Kc7 Bb5 Qg6 Qb3 Be7 Qb2 Kd8 Ba6 Rd7
R3NN2/qn3Q2/Qn2Q2N/3BRQ2/4pKNb/5R2/rP1n1p1q/Bk1b1r1n w - - 0 1 illegal: Other
3RQ3/1B1r2R1/2Qq1n2/B4Rr1/1pNq2b1/1Rp1N1q1/qQKPNN1n/2b1k3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 h4 Kf6 f4 c5 d6 g5 h6 e5 d7 b5 a5 c4 h7 e4 a6 b3 a7 g4 h5 b2 h6 g3 Nc3 b1Q Rh3 g2 Ba3 e3 Nge2 g1Q Nd5+ Kf7 f6 Ke6 f5+ Ke5 f7 Ke4 f6 Kd3 Qc1 Nc6 Kd1 Qg3 Bg2 Ne5 Bb4 Rb8 a8N Qa2 Nab6 Rb7 Ba5 Bd6 f8Q b4 f7 Nf3 Qe8 Rb8 f8R Qc7 d8R Bg4 Rf5 Nh2 Qb2 Rc8 Qc6 Nf6 Bf3 Rg8 h8Q Bf8 h7 Rg5 Rc1 Bg7 Qhe8 Rb8 h8N Rb7 Nf7 Qcd6 Nh6 Rd7 Rb1 Qgf4 Rg3 Qd4 Kc1 Bh5 Ng4 Bh8 Nec3 e2 Nde3 e1Q+ Bd1 Qg1 Ne2 Qg2 Ba4 Qf2 Bb5 Qff4 Ba6 Bg7 Rg1 Qg3 Bb7 Bh8 Nd1 Bg7 Nge3 Bg4 Rh1 Nf1 Rh7 Bh8 Rf7 Nh2 Rg7 Qe1 Qa1 Q4d5 Rf7 Ne4 Nc3 Qeg3 Rb3 Bd4 Rg7 Nf6 Nca4+ Ke2 Nf2 Q5e5 Nc3+ Ke1 Ne2 Bb2+ Kc2+ Bc1+ Qb2 c3 Nbc4 Qed4
BQ1r1rK1/r3k3/b7/3Ppq2/Qp1b1n1R/4RN1B/1NNRNqnB/2R4r w - - 0 1 illegal: No possible last move, all moves rejected
B4N1R/b1r2b1r/KqNb1n2/Q1pQ4/2PBN1k1/1RQ1b3/4pB2/qB1N1n2 w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 Ne7 gxh5 Ng8 d4 f5 dxe5 fxe4 Kd2 Kf7 Kc3 Ke6 Kc4 Kf5 b4 c5 h4 a5 f4 g5 h6 e3 e6 a4 e7 d6 e8B e2 h7 g4 h5 g3 h6 g2 b6 d5+ Kb5 d4 c4 a3 b7 a2 Bg6+ Kg4 f5 d3 f6 d2 f7 Qd4 Nh3 g1B Ng5 Be3 Ne4 Bf5 Nbc3 Be7 f8N Bh4 Rb1 a1B Bg2 Qd6 Rb3 Nd7 b8Q Qd5 Qa7 Rc8 Ka6 Bb2 b5 Be6 b6 Bg3 b7 Ne5 b8N Qd8 Nc6 Nf3 Qc7 Bd6 Qa5 Nf6 Rh3 Rg8 h8B Rg7 h7 Bf7 Qh1 Nh2 Nd1 Bc3 Bb2 Bb4 Bd4 Rc7 Rh5 Nf1 Rh6 Bg5 Bf2 Be3 Qh5+ Kf4 Qd5 Kg4 Nec3 Qb8 Bb1 Qd8 Ne4 Bc3 Nb2 d1Q Rh3 Qe1 Nd1 Bce5 Bh1 Qc3 Rh5 Qa1 Rh6 Rg6 Bg7 Rg5 h8Q B5f4 Rh3 Rh5 Rh2 Rh7 Rh5 Nd7 Bd4 Bg3 Qhe5 Nf6 Rh2 Rg7 Rh8 Rh7 Bg2 Re7 Nb4 Qb2 Nd2 Bh4 Qb7 Bc7 Bc3 Bb8 Bc6 Rd7 Ne4 Bg3 Qd4 Bgd6 Qd3 Nd5 Bd4 Qa1 Qc3 Nf6 Qa8 Ba7 Bd5 Qc7 Qd8 Bg3 Ba8 Re7 Qd5 Bd6 Nc6 Qb8 Ng5 Rc7 Ne4 Qb6+
q4rn1/1b3N2/4R2N/R1pN2Qp/1BP2QRq/N4bBk/2Bq1q1r/B1Kn4 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Be7 h4 fxg4 Ra6 g3 Ra5 g4 Ra1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 Kf7 f4 Kg6 e4 h5 b4 a5 c4 d5 f5+ Kh7 g6+ Kh6 b6 Kg5 e6 a4 e7 a3 e8N g2 b5 d4 g7 c6 b7 g3 e5 d3 e6 a2 b6 Ra6 e7 Nd7 b8B Ra5 f6 Kf5 f7 Re5 f8B Re6 b7 Rhh6 Bb2 Ne5 Qc1 Kg4 Na3 Rhf6 Nf3 g1Q Ng5 g2 Nf7 Qgd4 Rg1 Kh3 Nc7 Ng4 e8R Ne3 Nd5 Qh4 Bg3 Nd1 b8Q Bb7 Bb4 c5 Qf4 Rb6 Re6 Rb5 Rb1 a1Q Qg5 Qa2 Ra1 Qa8 Be2 Rb6 Bf3 Rd6 Be4 Rd8 Bh7 Rf8 Bg6 Ne7 g8N Rf2+ Ke1 Rc2 Ngh6 Ng8 Qcf4 d2+ Ke2 Ne3 Bh8 d1B+ Ke1 Rf2 Bc2 Bf3 Bf6 Nd1 Bb2 Rf1+ Kd2 Rf2+ Kc1 Rd2 Rge1 g1Q R1e4 Qb3 Ra2 Qf2 Ba1 Qc3 Nb1 Qg1 Ra5 Rh2 Na3 Qd3 Qe3 Qf2 Rg4 Qc3 Qef4 Qcd2+
r2k4/1nn3R1/1N2R3/2p1qP1Q/3q2b1/QBbN1Q1r/pBr3QN/1R2N1rK w - - 0 1 illegal: No possible last move, all moves rejected
3r2Bk/2nqQ2n/2Qn1R1b/1P4QK/rp1qR3/1N1B1R1b/2p1B3/Q1Bn2N1 w - - 0 1 illegal: No proof kernel
N2r2k1/BnnB4/4nQbP/BQp1nR2/q2NKR1q/2b4N/2p3R1/1Nr1B3 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxc4 a4 h5 axb5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 a5 h4 c5 b4 g5 d4 e5 b6 g4+ Ke4 g3 f4 g2 d5 c3 b7 a4 h6 c2 d6 a3 d7 a2 h7 Qc7 d8B Bg7 b5 Ra3 b6 Rh3 f6 Rh2 f5 Na6 b8N Be6 b7 Bc8 h5 Qe7 h6 Qd7 Nh3 g1N Bd2 Bf8 Nc6 Bg7 b8B Nf3 Bb5 Nd4 Rg1 Ne6 Ba7 Rh1 Nd4 Nac7 Rg2 Ne7 Be1 Nc6 Qd3 Na5 Qb3 Qe7 Bd7 Nb7 Qb5 Kf8 f7 Qh4+ Kd3 Rg8 h8Q e4+ Ke3 Be5 Qf6 Rf1 Bg3 Rc1 Be1 Na6 Bda5 Nac7 Kd2 e3+ Kd3 Qg5 Ke4 e2 Nd2 Qg3 Rb1 a1Q Rb4 Qa4 Nb1 Qf2 Qg6 Ke7 f8N Bg7 Qg5+ Kf7 f6 Rh8 Qf4 Kg8 Qf3 Nf4 Nfe6 Qh4 Bg3 e1N f7+ Kh7 f8R Ned3 Rf5 Ne5 Rc4 Rd8 Bge1 Kg8 Qf2 Qg5 Qh4 Qg4 Qf6 Qh4 Bc6 Bd7 Rb4 Be8 Bd7 Bg6 Rc4 Na6 Nc7 Bh8 Na8 Nc7 Rc3 Bg7 Rf3 Nfe6+ Rf4 Qa1 Qe7 Nc4 Nf3 Bc3 Nd4 Ne5 Qf6 Qa4
r3N3/1nBBkN2/K1BR3p/P2R3Q/b2b1n2/Q3qNQn/1NQp1n1r/4q3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 e5 Kd3 d5 f4 b5 c4 d4 a4 h6 g4 b3 g6 b4 g7 b2 a5 b3 f6 Rh7 c6 Qd6 c7 Bb7 c8N Qd8 g5 Bc5 f7+ Kd7 f8Q Ba6 f5 Ne7 g8Q Nbc6 g6 Rg7 f6 Ba3 f7 Rb8 Nd2 b1Q+ Qc2 b2 Nd6 Ke6 Rh5 Kd7 Ngf3 Ra8 Bg2 Bc5 Qe8+ Ke6 Bh1 Qb6 f8Q+ Rf7 g7 Bb5 Ra3 Ba4 Rb3 Qa7 Rb6 Nd8 Ra6 Bb6 c5 e4+ Kc4 e3 c6 d3 c7 e2 Rd5 e1N c8B+ Kf6 Qb5 Ng2 Bd7 Nb7 Kb4 Bd4 N2c4 Qa1 Bf4 b1N Nb2 d2 Qbc5 Nc3 Qe8 Rf8 Qh5 Qe1 Nf7+ Qb6+ Kc4 Nd1 Bc7 Nf4 Qa3 Qbe6 Rd6 Nh3 Kb4 Ndf2 Bg2 Bb3 Kb5 Ng6 Bh1 Ngf4 Bg2 Ba7 Ka6 Ba4 Bh1 Rfe8 Bg2 Re7 Qb8 Re8 Bh1 Ke7 g8N+ Kf8 Nf6 Q6e3 Bg2 Ke7 Bh1 Rg8 Bg2 Rg5 Qg8 Rg6 Ne8 Rg3 Bh1 Rg2 Qg3 Rh2 Bg2 Qe5 Bf1 Qe6 Bfb5 Q6e3 Bbc6 Bd4+
Qq2RR1Q/qnkN4/1rr3P1/1rQp1p2/5R1B/4Kn2/2B1RN2/N2bN1br w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 g4 f5 b4 h5 e4 d5 c4 Kd7 c5 d3 g6 a4 e6+ Kc7 b6+ Kc6 e5 a3 b5+ Kb7 g5 a2 g7 h4 e7 h3 e8Q h2 g6 Nf6 g8Q Nbd7 c6+ Kb8 b7 Qe7 e6 Qd6 c7+ Ka7 b8R Qc5 b6+ Ka6 b7 Kb6 e7 Ne5 Na3 Qb4+ Ke3 d2 Nf3 Bg7 Bd3 Qb5 Re1 h1R Re2 Ra7 Ne1 Nfd7 Qc2 d1R Qc3 Nf3 Bc2 R8h7 Qh8 Nc5 Bd2 Be6 c8N+ Kc7 Nd6 Rb1 Ne4 Ra6 Nf2 Rb6 Ra8 Rc6 b8N Nb7 Qc5 Bd7 Qef8 Qb6 e8R Rb5 Rb1 a1Q Rb4 Qb1 Rf4 Qa7 Bc3 Bh6 Bf6 Rf7 Bh4 Rf6 Qd4 Rcb6 Qdc5+ Rfc6 Qfg8 Bg5 Rf8 Be8 Nd7 Qb4 Bd1 Qb2 Nac2 Bf6 Na1 Bd4+ Kd3 Qb4 Bc2 Be3 Nd1 Bg1 Nf2 Qba4 Rd8 Qb8 Ke3 Qa5 Qgg7 Qaa8 Qgc3 Qa2 Qa5 Qa4 Qa8 Qaa7 Nf6 Bd7 Rde8 Rb2 Qa5 Rc3+ Bd3 Ba4 Nd7 Rc6 Qc5 Bd1 Bc2 R2b5
BQq1r3/q1R1b3/2R1pkrQ/2R1Rn1B/q4N2/P2p2B1/N2KQ3/1bn3qQ w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 Kf7 h4 d5 c4 g5 h6 b5 f6 d4 h7 b3 h5 d3 c6 g4 a3 e6 h6 g3 c7 b4 f5 b2 c5 g2 c6 b3 Nh3 g1Q Bf4 Qg6 Kd2 Na6 Nc3 b1Q Bg3 b2 Nf4 Bd6 Na2 Bc5 Rh5 Bf8 Be2 Bb7 c8B Qd4 c7 Bf3 Bb7 Nc5 c8R Qg5 Rc6 Ra5 Ba8 Ne7 Qc2 Qbg1 Rc1 Rg8 h8Q b1Q h7 Qg7 Rg5 Bd5 Bh5+ Qg6 Qd1 Qb8 Qe2 Qa4 Rc4 Qc8 Rc3 Na6 R3c5 Nb4 Rc7 Rg7 R5c6 Qa7 Rc5 Ke8 f7+ Kd8 f6 Nf5 R5c6 Rb5 Qg8 Rb8 h8Q Bb3 Qgh7 Bc2 Qh6 Bb1 Q8h7 Be7 f8Q+ Qe8 f7 Rg6 Qfh8 Qg8 Qb2 Qg7 Rc5 Qg8 R7c6 Qg7 f8R+ Kd7 Qb3 Qd4 Rf7 Qg1 Qd5+ Ke8 Qh1 Kd8 Qg8+ Kd7 Nc3 Na2 Qgh8 Nc1 Na2 Qca6 Qb2 Re8 Qb4 Qc8 Qb8 Ne3 Rge5 Nf5 Rf6 Bd6 Rf8 Ke7 Rh8 Kf7 Rh7+ Kf6 Rhc7 Be7
3R1NbN/1Q1n4/1pb2B2/2N2BqR/3pPBQ1/3K3N/1rbnQ3/1kb1Qqr1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 Ke7 c4 Ke6 h4 Kf5 a4 Ke4 h6 d5 h7 f5 a5 g5 h5 b3 e6 b2 e7 b6 e8Q+ Be6 h6 f4 c6 f3 c7 f2 c8N d4 a6 g4 c5 g3 c6 g2 c7 Be7 a7 Bd5 Nc3+ Kf5 Nh3 b1B Na4 Ke4 Qe1 g1Q Nc5+ Kf5 e3 Nf6 Bd3+ Ne4+ Ke2 Rg8 h8B Bb3 h7 B1c2 Bf6 Nd7 h8N Bd5 Ra4 Bc6 Rc4 Bd6 Rc3 Bf4 Ne7+ Kg4 c8Q Nd2 Bh7 Bg5 Neg6 Kf5 Nf8+ Rg6 Nce6 Ke4 Rc5 Bh6 Rd5 Qg5 Rh2 Qf5 Qb7 Rg1 Bg6 Rc8 a8Q Qe7 Qaa6 Qg7 Bh7 Qg5 Qh5 Ra8 Qc4 Ra2 Qg6 Rb2 Qg8 Nc5 Rd8 Nd7 Qd3+ Kd5 Qe4+ Kc4 Nc5+ Kc3 Qge6 Qff4 Qg4 Qff5 Qef3 Qff4 Bf5 f1B+ Kf2 Bg2 Ke2 Bd5 Rh1 Bg8 Qff2 Bc6 e4 Bcb3 Qff1 Kc2 Qfg2 Kb1 Kd3 Qf1+ Q2e2 Nf3 Bd2+ Bd1 Be3 Nd2 Bf4 Nf3 B4e5 Qh5 Nf2 Bc1 Bf4 Qg5 Rh5 Nd2 Nh3 Bc2+
b1Q3B1/Bb1B2N1/Rp1KqR2/1QQ5/qp5k/1n1Pn3/N1Q2b1r/1B1b2Rr w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 Kg3 f5 Kf4 h5 g4 c5 e4 h4 a4 h3 g6 c4 a5 h2 e6 Kf6 g5+ Ke7 Ke5 f4 g7 c3 a6 f3 a7 f2 d6+ Ke8 g6 c2 d7+ Ke7 Nf3 Rh6 Ng5 Rh5 Nc3 Qb6 d8R Rh7 Ra6 Nh6 g8Q Qc7+ Rdd6 Qb6 g7 Qd8 Bd3 f1B Rg1 h1B Na2 Be2 Qh8 Qb6 g8B Qe3 Kd5 Qh3 Qc3 Nf5 Qc5 Kf6 Rdc6 Kg6 e7+ Kh5 e8Q+ Kh4 Ne6 Nd7 Ng7 b6 Rf6 Rb8 a8Q Bb7+ Ke6 Rh5 e5 Ne3+ Bf5 Rd8 Qac8 Bd6 Bb2 c1Q Qdc2 Bd1 Bc3 Bb8 Ke7 Rh6 e6 Bg3 Be5 Qa1 Bb8 Bf2 Ba7 Ba8 Bg6 Bhb7 Kd6 Qg4 e7 Qc4 Qd5 Nc5+ Qed7 Re8 Qb5 Nb3 Qdc5 Rf8 e8B Qe6+ Kc7 Rf7+ Bd7 Rh8 Qb2 Re7 Bb1 Rh5 d3 Rf7 Nc3 Qa4 Na2 Rh8 Qbc2 Rh7 Rfg6 Rf3 Rf6 Rh3 Rgg6 Rh5 Rg1 Rh1 Q5f8 Rg5 Qe7 Rg2 Qec5 Qe4 Kd6 Rgh2 Kc7 Qf5 Kd6 Qe6+
nk1N1RR1/n1q3p1/1bb1RQ2/5BBQ/1N1Prrq1/K3p3/bB2Qb2/6QR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 h4 b5 a4 e5 d4 c5 Kd2 Kc7 Kc2 b3+ Kb2 c4 h6 b4 a5 e4 h5 e3 d6+ Kb7 a6+ Ka7 h7 Qh4 h6 Qh2+ Ne2 Qg2 d7 Qe4 d8B Nd7 f6 Kb8 f5 Qf4 f7 Qh4 f6 Bc5 f8R Bb6 f7 Ne7 Na3 Bb7 Nf4 Nc8 Bd3 Qg4 Bf5 Bc6 Ne6 Na7 Qg1 Rg8 h8R c3+ Kb1 b2 Ka2 c2 h7 b1B+ Kb2 b3 Bg5+ Nc8 Nd8 Na7 Rh6 Ba2 Re6 Ba5 Rb1 Nb6 Ra1 Be1 Rb1 Bf2 Ra1 Nac8 Rb1 Ra7 Ra1 Re7 a7+ Kc7 a8Q Na7 Nb1 Re8 Ka3 b2 Nc3 b1Q Bb2 Qf1 Rd1 c1B Re1 Bd2 Nd5+ Kd7 Nb4 Qc4 Qb8 Na8 Qb5 Kc8 Rb1 Qc2 Qe2 Kb8 Nd5 Qc1 Re7 Nb6 Qh1 Nd7 Be6 Ba5 Nb4 Qg3 Qhh5 Qc2 Rh1 Bb1 Qhg4 Qf4 Qg1 Bb7 Bh3 Be1 Re4 Re6 Re8 Bf2 f8Q Nb6 Bg4 Ba2 Qf7 Rf8 Rg8 Qcc7 h8Q Na8 Qhh5 Bb6 Qfg6 Rff6 Ref8 Bc6 Re5 Rf5 Qf6 Qg3 Re4 Rf4 Bf5 Qg4 Re5 Rd6 Ree8 Re6 Re7 Re5 Re6 Ree4
1q1R4/QN1q1pB1/4p1n1/1Q1B4/2B4n/Q2NP2r/BbQK3n/kbRn2Rr w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 g4 h5 Qa4 Na6 fxg5 Rh7 g6 Nb8 g5 Rh8 Qg4 hxg4 d4 Kd7 b4 Kd6 h4 a5 b6 c5 b7 g3 b5 a4 g7 e6 h5 a3 b6 a2 e3 c4 h6 g2 g6 c3 h7 c2 Nh3 g1Q Nd2 Be7 Nc4+ Kd7 d6 Kc6 d7 Kb5 d5 Ka4 d6 Kb3 Nf2 Qc7 d8R Ra4 d7 Qf4 Nd3 Bd6 Kd2 Ne7 Bb2 Ba3 Rc1 a1N Nd6 Nbc6 b8Q Ka2 b7 Nd4 Qa7 Ndf5 b8Q Nh4 Qb5 Ba6 Nb7 Qb8 Bc3 Qg4 Rg1 Bb2 Bg2 Qb4 Bd5+ Qb3 Be5 Rf4 Bd4 Rf3 Bf6 Rh3 Bc3 Re8 h8Q Qd6 Qh6 Rh8 g8B Qc6 g7 Neg6 Bh7 Qc7 Rcf1 c1N g8B Ne2 Rc1 Nc2 Qf8 Ne1 Bg7 Nc3 Qfc5 Nd1 Qc2 Ne5 Bhe4 Neg6 Bc4 Rh6 Bh7 Nef3+ Ke2 Rh1 Bed5 Nh2 Kd2 Qd6 Rc8 Rh5 d8Q Qc7 Qd6 Qd7 Rd8 Rh6 Qc3 Rh5 Rc2 Kb1 Qa3 Qb4 Ba2+ Ka1 Bdc4 Qbd6 Qcb3 Rh6 Rc3 Qb8 Qc2 Nf8 Be4 Nfg6 Bed5 Rh5 Qbc5 Bb5 Qcb3 Ba4 Qbb5 Bc2 Qc7 Bb1 Rc1 Qc6 Qe5 Qd7 Qec3 Nf5 Qcb3 Rh3 Qc2 Nfh4
3N1K2/BNQ1P2R/1Qb1pBbb/5q1N/RBr5/n1bq2N1/1pR5/k2Br1n1 w - - 0 1 illegal: No proof kernel
1q2Rr1b/QR2P1rk/n2pq1qN/2N1n3/4Qq2/1B1b2N1/1p2K2R/N2R1BB1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 e4 f5 a4 Kf7 c4 g5 h4 Kg7 a5 b5 c6 d6 a6 f4 e6 g4 a7 g3 c7 f3 c5 b3 c6 f2+ Ke2 b4 e5 b2 h6+ Kg6 e7 g2 e8R b3 e6 Be7 h7 Bf6 e7 Bg5 h5+ Kh6 Qc2 Nd7 Qe4 Nf8 Nd2 b1Q Rh2 b2 Nb3 Bb7 c8N Rb8 a8Q Bf4 c7 Ng6 Qa7 Ra8 Nb6 Qb8 c8B Ne5 Na4 Nf6 Be6 Nd5 Be3 Rg8 h8N Qa2 Rd1 Nb4 Nac5 Rg7 Na1 Na6 Bb3 Bc8 Bd4 Bf5 Nf7+ Kh7 h6 Bd2 Be3 Bc3 Bd4 Qa4 Be3 Qd7 Bd4 Qe6 Be3 Kg6 h7 Bd4 h8R Bc3 Nh3 g1Q Nh6 Qg5 Rhf8 Kh7 Nf4 Qgg6 Nh5 Bd4 Rc8 Bc3 Rc7 Bd4 Rb7 Bc3 Bg2 Bd4 Re8 f1Q+ Kd2 Qf3 Bg1 Qf4+ Ke2 Bc3 Bf1 Bd4 Qe3 Bc3 Ng3 Bd4 Ke1 Bd3 Qe4 Qbc8 Nh5 Nf7 Be2 Rg8 Ng3 Bh8 Bf1 Rg7 Rf8 Ne5 Rd8 Bc2 Ke2 Qc7 Rd7 Rf8 Rd8 Qb8 Re8 Bd3+
rB1Qr3/1P6/br1Nq2Q/1B3NNR/K2B3p/r2nbR2/4qnRp/1k1NR3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 Kb3 e4 g5 e3 g6 c4+ Ka4 h3 f6 c3 b6 e2 g7 e1Q b7 c2 f7 Qf6 b5 Qeh4 b6 Qe6 f5 Bd7+ Bb5 Nc6 b8B+ Ke7 d6+ Kf6 b7 Ne5 Ne2 Qf2 d5 Nd3 Bb2+ Qe5 Qc1 Nh6 g8R Ng4 Nd4 Qfe2 Nc3 Bh6 f8N Ngf2 Nd1 Qe6 Rg2 Ke5 f6 Ke4 f7 Be3 Nh7 Re8 f8R h4 Nf5 h2 Bd4 Bc6 Re1 Bd7 Qd2 c1R Rf6 Bc6 d7 Rb1 d6 Bd5 d8N Bc4 d7 Rb3 Ba6 Rb6 Nf7 Bb5+ Ka3 a4 d8Q Nf4 Qc1 Kd3 N7d6 Bc4 Rb1 Bb5 Kb4 a3 Ng5 a2 Ka5 Bc4 Rb5 a1R+ Kb4 Ra3 Rf7 Rc3 Ka4 Rb3 Ra5 Rc3 Bb5 Rb3 Qa3 Kc2 Qb4 N4d3 Qd2+ Kb1 Rf8 Bf4 Qe3 Qd5 Qe6 Be3 Qh6 Qe6 Ng3 Bd5 Rf3 Bc4 Ngf5 Rc3 Bd7 Ba6 Bb5 Rb3 Nh7 Kc2 Bc6 Bc4 Ne7 Ba6 Rh5 Qd5 Ng5 Qe6 Bb5 Kb1 Nef5 Ra3+
4qQQ1/1P1nB3/p2bbn2/2R1rpNQ/4N3/Q2B2BK/1BR1b1r1/1R3bqk w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 Kd6 d4 h5 e4 f5 g4 c5 Kg2 c4 b6 h4 b5 a6 b7 f3+ Kh3 f2 b6 c3 g6 c2 g5 Be7 g7 Rh6 g6 Nc6 b8B+ Qc7 e5+ Kd7 e6+ Kd6 b7 Bd8 e7 Ne5 e8R Nf7 Nf3 Rh5 Ng5 Bf6 Re5 Be6 Ra2 Be7 Nd2 Nf6 Bb2 c1Q g8Q Qc5 Bd3 f1B+ Kh2 h3 g7 Qb5 Qf8 Qe8 g8Q Rh4 Kg3 h2 Qh5 Re4 Rg1 Be2 Rb1 h1B Kh2 Rg4 Kh3 Rg2 Nde4+ Kd7 d6 Kc6 d7 Qb6 d8B Bd6 Rd5 Ne5 Be7 Ned7 Bc3 Bf1 Rc2 Qa7 Rdb5 Qc5 Bc7 Kd5 Bb2 Be2 Ba5 Rc8 Be1 Rc6 Bg3 Rb6 Ra5 Rb5 Rd2 Qc1 Rc2 Qg1 Bd8 Bf4 Qa3 Bd6 Be7 Rf2 Qf8 Bg2+ Kh4 Bgf1 Qg8 Rg2 Kh3 Rc5 Rb5 Kc6 d5+ Kc7 Qgf7 Nf8 Qg8 Be5 d6+ Kc6 d7 Kd5 Nd2 Bd6 Ra5 Rf2+ Kh4 Rb5 Bd8 Rc5 Ra4 Ra5 Rac4 Rc5 R4c3 Kd4 Nde4 Re5 Rc5+ Ke3 Bc7 Qb8 d8Q N8d7 Qdf8 Qe8 Bd8 Rh2+ Nh3 Rf2 Be7 Rh2 Qhf7 Kf3 Qfg6 Rf2 Nhg5+ Kg2 Qgh6 Kh1 Qh5 Rg2 Kh3 Bf7 Nh7 Bc4 Nhg5 Be6
3R3q/1p3nbB/1b2NN2/2q1RBq1/N1R2N2/BP2QKQr/2pq2B1/2rk3n w - - 0 1 illegal: No proof kernel
1R2Nk1r/PQ2N1R1/Bn1q4/r1B1N1bb/2K1p1r1/p1Q4q/6Nn/B1B1r1Q1 w - - 0 1 illegal: No proof kernel
nNNBrQ1q/P5n1/1B2bpBR/6b1/NRbb4/1pK5/RR2Q1r1/3B1qk1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 g5 e4 b5 h4 c5 a4 g4 e6+ Kd6 h6 b3 h5 b4 e7 c4 e8N+ Ke7 h7 g3 d6+ Ke6 a5 b2 e5 Kd5 h6 Ke4 d7 f6 a6 b3 d5 g2 e6 Kf4 a7 Kg3 d6 Kf2 e7 Na6 Rh4 Qa5+ Nc3 b1B d8B Qa3 d7 Nc5 Nge2 g1B Nd6 Qa5 e8B Ne6 Ra2 Qb4 Bg6 Ne7 Nd4 Qb8 Na4 Nf5 Be2 Nfg7 Kc3 Bd3 Nc6 Rg8 h8Q Nc7 Be3+ Kg2 Bb6 Bd4+ Kd2 Kf2 h7 Kg2 Qc2 Kg1 Bd1 Bf1 Qe4 Bd3 Qe2 c3+ Kc1 c2 Kd2 Bc4 Rh2 B8a6 Nc8 Be6 Rh4 Bd6 Rb2 Re8 Qf8 Bac4 h8R Be5 R8h6 c1Q+ Ke1 Qb1 Kd2 Bg3 Re4 Bh4 Rf4 Bg5 Ra2 Bc5 Kc3 Qf5 Rd4 Qf1 Rdh4 Qb7 Nb8 Qh1 Be7 Bf2 d8R Bc5 Rdd2 Bd4+ Kb4 Qh2 Rdb2 Qhh3 Na6 Rb8 Bd8 Na8 Re4 Rb7 Nb8 Rd7 Rf4 Rd5 Re4 Rf5 Reh4 Rf2 Re4 Bde3 Kc3 Rg2 Rh8 Qh7 Rg4 Qg8 Rh6 Qh8 Re4 Bcd5 Rb4 Bc4 Rb5 Bf2 Rb4 Bd4+
3B4/1Q1R1BN1/1r1Q1qbq/Bpp2Qrq/1brR1R2/2P3b1/1N1Q1K1k/1B3n2 w - - 0 1 illegal: No possible last move, all moves rejected
2N1N1b1/3r2p1/2pbN3/1Q1n1r2/3q1BP1/1QQ1RK2/1QR1Bq2/b1BB1qkr w - - 0 1 illegal: No possible last move, all moves rejected
1R4rn/r4R1p/R4KB1/1Q1q2B1/1pQ1QBr1/r1N2R1n/1k3nrP/1N1B2b1 w - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Na6 g4 Rb8 f4 Nh6 b4 axb4 g5 Ra8 f6 Nb8 f5 Be6 g6 Bf7 gxf7+ Kd7 Qe2 Ng8 Qg4 Ra4 Qd1 Ra8 Ke2 Kd6 Kf3 Ke5 Kg4 Kd4 Kg5 b5 a4 e5 a5 c5 d6 c4 d7 e4 a6 c3 d3 e3 a7 c2 Qe2 b3 Ra6 Bc5 f8Q b4 Qe7 b2 f7 Nh6 f8Q Rg8 f6 Nc6 f7 Ne5 Qe8 Nhg4 f8R Ng6 Rf7 Nf2 Rf3 Qa5 d8B Nh8 Qb5 g6 Bd2 c1R Kf6 g5 Bh3 Bb6 Bf5 g4 Bg6 g3 Qf1 e2 Bf4 e1R Qfe2 Rac8 a8B g2 Bd5 Ra8 Bb3 Qa2 Bd1 Ra7 Qf1 Re4 Qee8 Rc5 Ne2+ Kd5 d4 g1N Qe7 Ngh3 Rg1 Re3 Rh1 Ra3 Qc4+ Kc6 Nec3 Qb3 Qfe2 Qa2 Rf1 Qb3 Qcf7 Rg5 Q7e4+ Qd5 Q2d3 Rg4 Qfe8+ Kb7 Qc4 Bc5 Qeb5+ Bb6 Nd2 b1R Be7 Rb2 Ndb1 Rga8 Bed6 Rg8 Bg5 Nh1 Bb8 Rbg2 Bbf4 N1f2 Qe1 Qd7 d5 Qc6+ d6 Qd5 Qa5 Be3 d7 Bc5 d8R Bb6 Qb3 Kc6 Qaa4+ Kc5 Qb5+ Kd4 Rb8 Bc5 Na2 Qb7 Bc1 Nf7 Kf5 Nh8 Rf4+ Ne4 R1f3 Bb6 Ke6 Ra8 Rf7 Ra7 Bcf4 Bc5 Qc2 Bb6 Qc7 Qd5+ Ke7 Nef2 Kf6 Nd3 Qc2 Bc5 Qce2 Bb6 Qd7 Kc4 Nac3 Bg1 Q2f1 Rc2 Qb7 Kb3 Qe4 Kb2 Qb5 Rcg2 Qfe2+ Ka1 Qf1 Ndf2 Qfc4 Kb2
r6k/1RqpRb1n/3P3B/1n4RQ/NN3B2/BrrBn3/R1rQ2Kp/Q2q4 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 f4 Kf7 Kf2 Kg7 g4 c5 d4 a5 b7 h5 b6 e5 b5 e4 g5 h3 f6+ Kh7 d5 c4 g6+ Kh6 f7 Kg7 f8B+ Kf6 g7 h4 f5 h2 Na3 c3 Qh5 c2 Ne2 a4 Bf4 c1R Nc2 e3+ Kg2 a3 Nc3 e2 Ra2 e1R Na4 Qc7 Nb4 Na6 b8Q Bb7 Bd3 Rc3 Qa7 Rec1 Re1 R1c2+ Re2 Bc6 b7 h1N b8B Ng3 b6 Nf1 b7 Rh7 Bh6 h3+ Kf3 h2 Kg2 Bb5 Qf2 Rh8 Re7 Bc4 Qd2 Ne3+ Kh1 Qd8 Bbf4 Nc7 b8R Nb5 Rb7 Qc7 Re5 Ne7 g8R Ng6 Bd6 Bb3 Re7 Nf8 Rg5 Nh7 Bc5 Rhb8 d6 Ng4 Kg2 Bf7 Rb2 Rc1 Rc2 a2 Rb2 a1Q Ra2 Qb1 Nc6 Qa1 Ba3 R1c2 Nb4 Bg6 Re2 Kf7 f6 Kg8 f7+ Kh8 Re6 Qd1 Re7 Rg8 f8Q Bf7 Qd8 Rb3 Qb8 Rc8 Qa7 Ne3+ Kh3 Qe2 Qd4+ Nf6 Nb2 Qa5 Kg3 Qd1 Na4 R8c6 Kf2 Qc7 Qa1 R6c3 Kg3 Nh7 Kh3 Nf5 Kg2 Ne3+
5kNB/R2Q2n1/2K2N2/1p4nr/rPn1q1RB/2q1B1NQ/2RbBp1R/3n3r w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b6 a4 Nh6 a5 Ng8 a6 Bb7 axb7 Qf6 Na3 Qe7 Nb1 Qd8 Kf2 a5 Kf3 g5 Ke4 c5 h4 b5 b4 a4 d4 c4 d6 f5+ Kd5 g4 e4 g3 d7+ Ke7 h6 a3 h7 f3 e5 g2 h5 c3 e6 f4 h6 a2 Be2 c2 Nc3 f2 Ne4 f1R Be3 c1N Nf6 f3 Rh2 Qa5 d8R f2 Rc8 Nc6 b8R Ne5 Rc2 Nc4 Kc6 Qd8 d5 Ra4 Qd4 Bg7 d6+ Kf8 d7 Qe8 Ra8 Re1 Ra7 Nd3 Qd6+ Qe7 d8B Ndb2 Qd7 Nd1 Rac1 a1Q Rb1 Qe8 e7+ Kf7 Rb3 Qa3 Rd3 Qc3 Rd4 Bf8 Rg4 Bg7 Nf3 g1N Nd4 Nh3 Nf5 Ng5 Ng3 Rf1 Rc7 Rh1 Ra7 Qf8 e8N+ Qe7 Nd5 Kf8 Nef6 Qee5 Ne7 Qf5 Nfh5 Nf6 Ng8 Ne8 Bf6 Nf3 Bh4 Be5 Nhf6 Bf4 Bd4 Bd2 Be3 Qg6 Ne7 Rg8 h8Q Ng5 Qh7 Rg7 Ng8 Re7 Qh8 Ng7 Qh7 Qgd3 Qhf5 Re8 h7 Re5 h8B Rd5 Qf3 Qe4 Qg2 Nf3 Qh3 Rh5+ Nd5 Qf5 Ndf6 Ng5 Ra5 Qf4 Ra7 Qe4+
6BB/3NR3/Q1qr4/RB1rq3/1p1rq1bk/1PQ3n1/1p1BNN2/1KR2Rbr w - - 0 1 illegal: No proof kernel
r1Qr1r1B/N1KNQ3/1n1q1q1n/1Bpp4/2R3B1/N1RPb3/2QN4/kqB3r1 w - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 d6 exf5 Ba6 a5 Bc8 a6 Bb7 axb7 Kf7 cxb5 Qd7 b6 Ke8 b5 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 g4 a5 f6 e5 f7 c5 f5 h5 f6 h3 g5 h4 g6 h2 g7 a4 Na3 h3 Nf3 Ne7 g8B Nd7 b8N Nf5 b7 Qe8 b6 d5+ Kb5 Nh6 Kc6 Qe6+ Kc7 Be7 Rg1 h1R f8N h2 f7 Bg5 Rg3 Rg1 Bb5 h1Q Nc6 Be3 b8Q Qh4 b7 Nb6 Nd7 Qhf6 Qf8 Rd8 Qe7 Rf8 b8Q Rd8 Nb1 a3 f8B a2 Bg7 Rf8 Bf7 Rd8 Na3 Rhf8 Rb1 a1R Na7 Ra2 Qc8 Ra1 Nc4 Kd3 Bh5 e4 Bh8 Ra4 Qe2+ Kc2 Rb4 Ra6 Ra4 Kb1 Na3+ Ka1 Rc4 Ra5 Bg4 Ra6 Nc6 Ra8 Qg2 Bg5 Qf2 e3 Na7 e2 Qh2 Ng8 Qhh7 e1Q Qc2 Nh6 d3 Rh1 Rg1 Be3 Nd2 Qd1 Rf1 Rg1 Rc3 Qe1 Rf4 Qf1 Rfc4 Qd1 Qa4 Qc2 Qb3 Qb1 Qc2 Qd6+
1q4Q1/R4r1p/Rq1bp2B/2N1NbK1/3R1Q2/1b2P1nR/2B2b1B/1rkBQ2r w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bb7 g5 Bc8 h5 Nc6 Ra6 Ne5 Ra1 Ng6 hxg6 Bb7 Bg2 Ba6 Bf1 Bc8 Kf2 Kd7 Kf3 Kd6 b4 Ke5 d4+ Kf5 b6 a5 g7 c5 b5 c4 d6 c3 d7 c2 g6 a4 b7 a3 b8B a2 d5 Nh6 g8B Qb6 d8R Ra7 g7 f6 Be3 c1Q d6 Qb2 d7 Kg5 Bc7 Nf5 Nd2 Ng3 Bb3 f5 Rh3 Qb8 b6 Qd4 b7 Qb6 Rc1 a1B Bc2 Bd4 Nb3 Ra1 Nc5 Rb1 Bd2 Bf2 Qe1 Rg8 Re8 Rh8 d8R Be6 Rc8 Bb3 Rd1 e6 Re7 Rg8 Rf7 Bd6 Bc1 Re8 Rd4 Rf8 Rd7 Rf7 g8Q+ Kf6 Rcd8 Ke5 Ra4 Kd5 Ra6 Kd4 Bd1 Q8a7 Ra8 Qb8 R8a7 Kc4 Kg2 Kd4 Nf3+ Kc4 Ne5+ Kd4 Rh1 f3+ Kh3 f4 Kh4 Qf8 Rh3 Qb8 Ba3 Ke3 Bg2 Nf5+ Kg5 Ng3 Qh1 Kd2 e3 Bc2 Bb4+ Kc1 Qe1 Bb3 Bh1 Bg1 Rd8 f2 Be4 f1B Bec2 f3 Rd7 f2 Bc3 Bf8 Rd4 Bd3 Ba1 f1R Bd6 Qa8 b8Q Bf2 Bc7 Bd6 Qbf8 Re7 Qf4 Qab8 Bc3 Rf7 Bb4 Bf8 Bd6 Bf5 Bc3 Bg7 Bf8 Bh8 Bh6 Rh1 Ba5 Bg7 Bb4 Bf8 Ba5 Qb4 Bc7 Q4b6 Qe4 Nh5 Nc6 Ng7 Bh2 Nh5 Qf4 Ng3 Ne5 Bd6
k3q1K1/3qb1N1/pn1QBBNQ/NB1nN1n1/4rp1R/q2R4/Pqr3Q1/5B2 w - - 0 1 legal: proof: d4 e5 dxe5 g5 f4 gxf4 g4 c5 b4 b6 bxc5 Bb7 g5 Bf3 h3 Bg4 hxg4 Qc8 Nh3 Qc7 Ng1 Qd8 Kf2 d5 Kf3 Kd7 e4 Kc8 c4 Kb7 e6 h5 e5 f5 c6+ Kc7 e7 h4 e8B a6 g6 b5 e6 h3 c5 d4 g7 h2 g5 d3 g6 b4 e7 d2 Bb2 b3 Na3 Rh4 Nc4 Kc8 c7 Kb7 c8Q+ Ka7 c6 Rh7 c7 Nf6 g8Q Rf7 g7 Nh7 Qe6 Nd7 c8B Nb6 Bb5 Qe8 Bf6 b2 Na5 b1Q Qd6 Rb8 Qc1 Ka8 Be6 Qb2 Rb1 Qa3+ Rb3 Rc8 Rd3 d1N Qe3 Nc3 Qc1 Qd7 e8N Ncd5 Qd2 Rc3 Qh8 Rc4 g8N Re7 Ng7 Rc2 Qg2 Re8 Ne7 Qb2 Nec6 Re7 Ne2 Ng5+ Kf2 f3 Kg3 f2 Kh4 Qa3 Nf4 Re8 Ng6 f4 Kh5 Qb2 Bg4 Re4 Kh6 Qe8 Nce5 Qa3 Bfe2 f1Q Be6 Qb1 Bf1 Qbb2 Qh7 Qd7 Qh8 Nh3 Kh7 Ng5+ Kg8 Qe8 Rg1 h1Q Qh6 Qh3 Rh1 Qf5 Rh4 Qh3 Bf7 Qhd7 Be6 Be7+
1N2bn2/4Rr1p/4Q3/2RQpNRr/1r1B3B/3BnnB1/2q3NP/2Nk1qrK w - - 0 1 illegal: No possible last move, all moves rejected
Qb3k2/NN1r1rb1/2n3b1/N2Qp3/r1b4Q/1bp5/1BPKnQR1/3B1BNR w - - 0 1 illegal: No possible last move, all moves rejected
rRn5/1RQp2b1/Q1bbbR2/1q1PN1N1/B2B2Bk/2bQ2b1/Rp5K/1B1n4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 b5 c4 e5 fxe5 hxg4 bxa5 b4 Bg2 Ra6 Bh3 Rb6 Bf1 Rb5 cxb5 Rh5 Bg2 Rh4 Bf1 Rh8 Kf2 Ke7 Kg3 c5 e4 g5 d4 f5 h4 f4+ Kh2 c4 a4 c3 a6 c2 e6 Kf6 a5 b3 e7 f3 e8R f2 e5+ Kf5 d5 b2 h5 Rh7 h6 Rf7 b6 Qc7 a7 Qc3 a8Q Qc5 h7 Nh6 h8Q Bg7 b7 Nc6 b8R Na7 e6 Rf8 e7 Qb5 a6 Bb7 Ra2 Bc6 Nh3 Nc8 Be2 f1B Be3 c1B a7 Bd2 Bd4 Bc3 Na3 Rg8 Nc4 g3+ Kg1 g4 Rb7 g2 Ng5 Kg6 Kh2 Kh5 Qd3 Kh4 Ne5 Rf8 Qg8 Nf5 Qe6 Rh8 Qd6 Ne3 Qc7 Nd1 Bf3 Be2 Rf1 Rg8 Rd8 Rf8 e8B g1B+ Kh1 g3 Bg4 Be3 Rf6 g2+ Kh2 Bf2 Bg6 Bf3 Re8 Be4 Rd8 Bf5 Re8 Be6 Bh7 Ne7 Reb8 Rc8 Qe2 Rh8 Bb1 Nc8 Qd3 Bfe1 Rb6 Re8 Qab7 Bf2 a8B Rh8 Qa6 g1B+ Kh1 Bfe1 R6b7 Bh2 Kg2 Bhg3 Kh1 Bb4 Kg1 Bec3 Kg2 Bge1 Kh2 Bd6 Qd2 Qc5 Ra7 Ne7 Qdd3 Ba4 Rc8 Qa5 Bc6 Bg3+ Kh1 Bb5 Rca8 Rb8 Rb7 Nc8 Kg1 Bc4 Ba4 Bb5 Kh1 Bc6 Kg2 Bf2 Kh2 Qb5 Rb6 Bfe1 Ra7 Ra8 Rb8 Bf2 Rab7 Bg3+
4Bn1N/B6r/q1Qr1k2/pR2N1p1/2NRb2Q/P6Q/3b1rNb/1b1rQK1R w - - 0 1 legal: proof: g4 c5 d4 e5 dxe5 g5 b4 f6 bxc5 Nc6 h4 Nce7 h5 Ng6 hxg6 f5 Ba3 fxg4 Bb2 Qf6 Bc1 Qd8 e4 Ke7 f4 a5 c4 d5 e6 b5 c6 h5 f5 g3 a3 d4 g7 b4 c5 b3 f6+ Ke8 e7 Kf7 e8R b2 e5 g2 e6+ Kg6 e7 h4 f7 h3 c7 d3 c6 h2 Qh5+ Kf5 Nh3 g1B Nf4 Rb8 Qh4 Be3 Nd2 b1B Nc4 Kf6 Ng2 Qd5 Rd8 Bf5 c8Q Qd7 e8Q Bfc5 f8N Qb7 c7 Nh6 Rd4 Ng8 Ng6 Rh7 Nge5 Be4 Qch3 Qa6 c8Q Rb2 Qcc6+ Bd6 Ra2 Bf4 Be3 d2+ Kf2 Rc2 Rb2 Ne7 Rb5 d1R+ Be2 Rdd2 Kf1 Ng6 Bh5 Nf8 Bf7 Re2 Bf2 Bd2 g8N+ Kg7 Nh6 Kf6 Bh5 Rc3 Nhf7 Rd3 Rg1 h1R Nh8 Be1 Be3 Rd1 Bf7 Rh2 Rh1 Bd2+ Qe1 Rh6 Qb8 Rh7 Be8 Rd7 Qbc8 Rd8 Qg3 Rh7 Qh4 Rdd7 Qc5 Bc7 Qc6+ Rd6 Qch3 Re6 Nef7 Bh2 Nfe5 Rd6 Rd3 Rb7 Ba7 Rh7 Rd4 Rf2+
2R2nNQ/q5rN/1Rn1BQ1p/1KB1Qb2/1Nr3bb/BN2Pp1p/6B1/1k5r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 Be7 dxc5 Bf8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 b4 Ke4 g4 a5 g5 f5 c6 h6 c7 h3 e6 f4 e3 d6 b6 a4 b7 a3 b5 a2 g6 Na6 b8B Nf6 g7 Ng4 g8N Qg5 b6 d5+ Kb5 Ra7 c4 d4+ c5 d3 e7 d2 e8Q+ Qe5 b7 Be6 c8B Bb3 Bd6 Be6 b8N Rg7 Bg2+ Kd3 Qf3 Kc2 Nc6 d1B Nb4+ Kb3 Ba3 Qd4 c6 Nf6 c7 Qa7 Bc5 Bf5 Qe5 Nh7 Qc6 Bdg4 Qcf6 Bd6 Nf3 Nf8 Rc1 Be7 Ng5 f3 Nh7 Nb8 Rc4 Nc6 Be6 Bd8 c8Q Be7 Nc3 Bd8 Ne2 Be7 Rd1 a1R Rd6 Rh1 Qa8 Na5 Rb6 Nc6 Nd3 Ka2 Nec1+ Kb1 Nb4 Bd8 Nb3 Be7 Qf7 Bh4 Qff6 Nd7 Ne7 Re8 Ng8 Nf8 Qad8 Rc7 Qh8 Rg7 Qdf6 Ra8 Rd4 Rc8 Rd8 Rcc7 Rc8 Nb8 Bd6 Rc4 Bc5 Nc6
3B4/1QN3nn/3rpN2/KB4bp/4B1QQ/2Rbr1P1/N1n1pbq1/RBN1k3 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Ke6 Kb4 Kf5 f4 h5 c4 d5 b6 a6 g6 d4 c6 e3 c7 Ke4 c5 d3 g3 e2 f5 d2 g7 Ke3 b7 Kf2 c6 Qd4+ Ka5 Qa7 b4 Qd4 f6 Qe3 f7 Nf6 g8N Ng4 b5 Qf4 b6 Qe4 Nc3 Qg2 Nf6 Rh6 Na2 Bf5 c8B Ne3 c7 Nd7 b8N Bd3 Bb7 Nf5 c8B Ng7 Be4 Rg6 Qa4 d1N b7 Ke1 Bg5 Rh6 Rc1 Rg6 Rc2 Ne3 Rc3 Nc2 Qc4 Rh6 Qe6 Rg6 Qg4 Rh6 Bf4 Ra7 Bc7 Ra8 Bd8 Rg6 Ne8 Nf6 Nd7 Nh7 b8Q Rd6 Ndf6 Ra7 Bcf5 Rb7 Nc7 Rb3 Bd7 Ra3+ Ba4 Rb3 Qb7 Ra3 Nh3 e6 Nf2 Be7 f8Q Rb3 Qe8 Ra3 Qeg6 Rb3 Qh4 Ra3 Qgg4 Rb3 Nfe8 Bf6 Bb5 Bg5 Ka4 a5 Nf6 Qg1 Bfg2 Qf1 Bc4 Ra3+ Kb5 a4 Ka5 Rb3 Bb5 a3 Bg6 Qg1 B2e4 Qf1 Nc1 a2 Bgf5 a1B Na2 Kd2 Rg1 Qg2 Rf1 Bb2 Ra1 Ba3 Bg6 Bc5 Bgf5 Bc4 Nd3 Bf2 Ndc1 Ke1 Rf3 Re3 Bg6 Na3 Bb1 Nc2 Be4 Rb3 Rc3 Bd3 Bec6 Rb4 Bd5 Re4 Bdc6 Re3 Bf3 Bg1 Be4 Bf2
3BR3/4KR2/p2BNr2/1np1Pq2/r1bQ2b1/1k4b1/Nn1pBN1N/1r2RQ1R w - - 0 1 illegal: No proof kernel
Q5Rr/Q2b1P1Q/4R1p1/brNn3R/3nBB2/Bp2Np1K/3kn2R/B4rq1 w - - 0 1 illegal: No proof kernel
4q3/3QP1Bn/BNpb2kb/2RR4/brNQp3/3BRpNB/K2R4/4rr1n w - - 0 1 illegal: No proof kernel
1B2RNB1/1q1RPQ1Q/1pk5/r1Bp1NRN/1Knnn3/4bb1r/p5rN/2R5 w - - 0 1 illegal: No proof kernel
n7/q1Q1p1Q1/1r4bp/1N3r2/nR1N1B2/1b4Kp/RQBnBb1P/2N1kNB1 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 Nc6 e4 Nb8 exf5 g6 Qg4 g5 Qh4 gxh4 g4 Kf7 c4 Kf6 b4 Ke5 f4+ Kd4 Kf2 d5 g5 a5 g6 h3 g7 a4 c6 h6 f6 a3 f5 a2 c5 Qd6 c7 Ra5 f7 Ra6 c6 Qd7 b6 Bb7 c8Q Ke4 b5 d4 c7 d3 Kg3 d2 Be2 d1B Be3 Qe8 Nd2+ Kd5 Nf1 Nf6 g8B Ke4 Bh7 Bg7 f8N Bd5 b7 Bg8 b6 Nfd7 Ne6 Bf7 f6+ Bg6 f7 Bb3 f8Q Nc5 Nd4 Nbd7 b8Q Na4 b7 Rb6 Qd8 Bf6 c8N Bg5 Qg7 Rf8 Qdc7 Rf5 Na7 Qd8 Rb1 a1N Nab5 Qe8 Bf2 Be3 Rb2 Qg8 Ra2 Qc4 Qbh8 Qc5 b8B Qa3 Bh5 Kd3 Nge2 Qc5 Bg1 Qa3 Qc1 Qc5 Bf4 Qc7 Qd8 Qa7 Bf3 Rc6 Qb8 Ndb6 Qb2 Na8 Qc7 Rb6 Bg4 Bc4 Bf3 Nb3 Bg4 Nd2 Nc1+ Ke4 Bd1 Bb3 Be2 Nf3 Qbc3 Rh5 Nd3 Bc2 Bf2 Bf5 Rg1 Bd1 Rg2 Bc2 Bg1 Bd1 Rb2 Bc2 Rb4 Bb3 Qg4 Rg5 Bd1 Rh5 Ra2 Nd2 Bg6 Rg5 Bh5 Bh7 Nc1 Rf5 Qg7 Bg6 Qa1 Bbf7 Ncb3 Kd3 Qb2 Bd5 Nf3 Bc4 Bc2+ Ke2 Nfd4+ Ke1 Nc1 Bb3 Be2 Bf2+
rBR4q/4p2p/2bP1b2/1p5N/N2R1K1N/nB3R1b/1N1Qn1Rr/1Q2Qr1k w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 c5 g4 b5 a4 b3 d4 c4 a5 b2 d6 c3 a6 c2 d5 Bh6 a7 Be6 g6+ Kf6 g5+ Ke5 f6 Qc7 d7 Bf5 d8Q Bd7 g7 Qc8 f7 Bc6 f8R Bb7 g6 Bg5 Rh3 Na6 Na3 b1B Qe1+ Be3 Bc4 Qc7 Bb3 Qb6 Nc4+ Kd4 Nb2 Ke5 Ra4 Nf6 g8N Nc5 g7 Qd6 Rd4 Nfd7 Nf6 Na4 g8R Bc6 Nh5 Qb8 Rg2 Rg8 Ne2 Rg5 Nc3 Rg8 Qa5 Rg5 Rc8 Ndb6 Bd2 c1R Qb4 Nc5 Nca4 Ne4 d6 Bf4 Be3 Nc4 Qbd2 Na3 Rhg3 Rf5 Kg4 Bg5 Rf3 Nc3 Kg3 Bf6 Kg4 Qc7 Kg3 Rb8 a8Q Qd8 Qa5 Bd3 Qb4 Rc2 Qb1 Ra8 Qde1 Nd1 Qbd2 Bf1 Rff4 Rc1 Rg1 Qd7 Qee2 Bb7 Rb4 Bh8 Ba7+ Be4 f3 Nc3 Rd4 Bh3 Bb8 Rf1 Qee1 Rf8 Rf6 Qf5 Rf7 Qf6 f4+ Kf5 Rg7 Rf2 Rf1 Rh2 Rf2 Bd3 Kf3 Ne2 Ke3 Be4 Rf7 Kg4 f5 Qg7 f6 Qg8 Rg7+ Kh4 Rg5 Bg7 f7 Qh8 Rg1 Bf1 Rf5+ Kh3 Rgg5 Bc6 Rff4 Rg8 f8N Bf6 Ng6 Rg7 Nh4 Rg8 Rgd5 Rg1 Rg5 Bfg2 Rf2 Rf1 Rgf5 Rhh1 Rg5 Kh2 Rf3 Kg1 Rgg4 Rh2 Rg7 Kh1 Rg6 Nc3 Kf4 Bh3 Rg2 Ne2+
1bnNr3/nR1p2r1/B1pQ2NK/P1QBB2q/1NbN1pk1/1B6/2b5/2R1R1n1 w - - 0 1 illegal: No proof kernel
Q1q1B3/npk2Prn/3nQ3/2r3r1/QRpQ1p1N/1BBN4/1RbB2Nb/1K6 w - - 0 1 illegal: No proof kernel
3B3B/pK1QQ2Q/r2Bpnb1/R3q3/B1P4p/N2k1rN1/Rb2r2R/R2n1b2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 b4 h5 g4 e6 f4 h4 g6+ Kf6 b6 Qe7 b5 Qf7 b7 Na6 b8B Nc7 b6 Ba3 g5+ Ke7 f6+ Kd6 b7 Kc5 g7 Qe8 f7 Rh6 f8R Rh8 g6 Na6 f5 Qa4 f6 Rh7 f7 Kb4 Bc7 Bb2 b8B Rh5 Ne2 Nf6 g8Q Qa5 g7 Re5 Bd8 Nc7 Qh7 Nb5 g8R Ba6 Ng3 Re2 Rg5 Kc5 Na3 Nc3+ Nc4 Qc7 Rh2 Qe5 Bd6+ Kb5 Qd2 Nd1 Rfg8 Rb8 f8Q Rb6 Qfe7 Rc6 c3 Rb6 Rf5 Rc6 Rff2 Rb6 Rg5 Rc6 Kc2 d3+ Kb3 d4 Rfg2 Bc8 Rf2 Ra6 Bg2 Bb7 Bh1 Be4 Na3+ Kc6 Kb4 Kd5 Kb5 Bg2 Qc2 d2 Qa4 d3 c4+ Kd4+ Kb4 Ne8 Qad7 Bf1 Bc6 Nf6 Ba4 Ne3 Bc6 d1R Ba4 d2 Rgf5 Kd3 Rh5+ Qe4 Kb5 Rde1 Re5 d1B Bd2 Bc2 Bc3 Nd1 Rg5 Nd5 Bh8 Re3 Rgf5 R1e2 Rh5 Rf3 Kc5 Ra5+ Kc6 Ra6+ Kb7 Nf6+ Rd5+ Ke3 Rfg2 Qe5 Ra5 Bg6 Rf2 Kd3 Rfg2 Re4 Rc2 Bc3 Rb2 Re2 Rba2 Bb2
3r3B/nb1B4/6NR/3PQ2R/B1nK1b2/1bp1p1Nq/4q1p1/RQRNkNr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 d4 Kg5 a4 Kh4 f4 g5 h6 c5 a5 e5 d6 b5 d5 c4 a6 e4 d7 g4 f6 b3 f7 b4 h7 g3 f5 b2 f6 b3 a7 g2 Nh3 Ba3 f8Q Qc7 d8N Bg4 f7 Qd7 Nb7 Qa4 Nd6 Ne7 Kd4 e3 Qe8 Nc8 f8N Bh5 Nf2 Nd7 Nd2 b1Q Bb2 Be2 Qe5 Qa2 Qb1 Ndb6 N6e4 Bd6 Ng3 Qd7 Nd1 Qh3 Ng6+ Kg4 Bc3 Rd8 h8R b2 Rh5 Rb8 a8B Na7 Bc6 Bd3 Qc1 b1B Ba4 Bbc2 Qb1 Bb3 Bb2 Bf5 Bd3 Be6 Ndf1 Kf3 Bf5 Bc8 Bfd7 Bb7 Bc3 Qe2 Bb2 Qe6 h4 Qh3 Rh6 Rbc8 h5 Rb8 Rh8 Rbc8 h6 Rc6 h7 Bc7 Nc3 Kf2 Nd1+ Ke1 Rg1 Bb8 Rh1 Qe6 Rh5 Qh3 Re8 Bc7 h8R Rf6 R8h6 Rf3 Nh2 Rf1 Rg8 Rg1 Nhf1 Ra8 Rc8 Bd6 Rc6 Rd8 Ba3 Bb8 Be7 Bc7 Bf6 Bb8 Bh8 c3 Rf6 Nc4 Rf2 Qf3 Rc2 Qe2 Rc1 Bd6 Qf6 Bf4 Qff5 Qc2 Qe5 Qe2
3kN3/B4B2/n2q1K1Q/p1RRQ3/2q2Nrn/PQ1Nb3/b1pp1Qrn/4B1B1 w - - 0 1 legal: proof: e4 b5 c4 h5 g4 c5 gxh5 f5 exf5 bxc4 d4 Qc7 dxc5 Qd8 Kd2 d5 Kc3 a5 Kd4 g5 Ke5 e6 f4 d4 b4 c3 h4 g4 a3 d3 c6 g3 h6 g2 f6 Qe7 f5 Ra6 h7 Qa7 f7+ Kd8 c7+ Ke7 f6+ Kd7 h5 Qa8 h6 Ra7 b5 Bb4 f8Q Bc5 f7 Bb6 Ne2 g1Q Nd2 Rb7 Qb3 c2 Ne4 Qh2+ Nf4 Qa6 Nf2 Nf6 Bd2 Qg2 Be1 Bc5 b6 Qc6 Rd1 Ne8 Rh5 Nd6 Kf6 Be3 Rc5 Rg8 h8Q e5 h7 e4 Qh6 Rg4 f8Q Qc4 Rd2 Ra7 b7 Na6 b8B Ra8 Ba7 Nf5+ Ke5 Bb7 c8N Nh4 Nd6 Rg2 Ne8 Kd8 Be2 Qb6 Qh8g7 Bd5 h8B Be6 Qff7 Qd6+ Kf6 Rb8 Bh5 Rb4 Re2 d2 N2d3 Bg1 Qff8 e3 Bf7 Ra4 Rf2 e2 Qgg5 Rb4 Qe5 Ra4 Rf3 Bf2 Rg3 Be3 Rg5 Rb4 Qa1 Ra4 Rgd5 Rb4 Qe5 Ra4 Bf2 e1N Bg3 Nef3 Be1 Qb4 Qfg7 Qc3 Qg3 Nh2 Qf2 Rc4 Nh3 Rcg4 Nhf4 Qd4 Bg7 Qc4 Bf8 Qd7 Bd6 Qc6 Bdb8+ Qd6 Bb6+ Kd7 B8a7 Qb4 Rc7+ Kd8 Qf3 Nc5 Qb1 Qd7 Rd4 Ba2 Rd5 Qc4 Qb3 Na6 Bd4 Bf2 Rcc5 Bg3 Bg1 Bf2 Qg3 Be3 Qf2 Qd6+
q1k5/b1n2B2/1rbQPRK1/Bq3B2/2QpBNQr/p3b1Rn/3pQN2/2R5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kg3 d5 Kf4 Kd7 c4 a5 e4 a4 h4 a3 b4 d3 h6 d4 c5 g6 c6+ Kc7 h5 Ra7 h7 Rb7 e6 Rb6 h6 Ra6 e5 Bd7 e7 Ra7 Kg5 f4 b6+ Kc8 c7 f3 b5 f2 Qe2 Ra4 Bg2 f1Q Be4 Bg7 Nh3 Ra6 Rg1 Qdf8 e8B Ra5 Nc3 Bg4 Nf2 Ra7 Rg3 Nc6 Nd5 Qf3 Bf7 Nb8 Nf4 Na6 Bd2 Bd7 Ba5 d2 Rc1 Bc6 Qc4 Nf6 b7+ Kd7 b8Q Bf8 b6 Ng4 b7 Bc5 Qf8 Q3g2 b8R Rb7 Qg8 Ba7 Rf8 Rb6 c8B+ Kc7 Qe2 Kb8 Qc4 Nc7 Bcf5+ Kb7 e6 Qf3 Be8 Kc8 Rf6 Q1d3 Qg7 Qb3 Qe7 Qb5 Bf7 Qg2 Qd6 Qf3 Kh4 g5+ Kh5 Qh1+ Kg6 Qg2 Nh1 Nf2 Qe2 Nh3 Nf2 g4 Qc4 Rd8 h8Q Rf8 Qg7 Rh8 h7 Qh1 Rf3 g3 Qe2 g2 Rg3 g1B Qc4 Rd8 h8Q Qf3 Qh5 Rh8 Qg4 Rh4 Qh7 Qh1 Qhh5 Qg2 Nd1 Be3 Nf2 Qh1 Qge2 Qd1 Qhg4 Qda4 Bc3 Qaa6 Bb4 Qb7 Ba5 Qa8
1rN1q1RB/7b/3p1p2/P1Qn2bB/1nrp4/kn2QK1R/1N5N/B2BQq1N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 Bc5 bxa5 Bf8 Kf2 Ke7 h4 g5 a4 b5 e4 d6 c4 g4 a6 f6 e6 b4 a7 b3 c5 g3+ Kf3 b2 h6 g2 a5 Ba6 c6 Bc8 e5 Bd7 h5 Qb6 c7 Na6 c8N+ Kd8 e7+ Kc7 e8B Kc6 e6 Kc5 e7 Kb4 h7 Ba4 h6 Bb5 Nd2 b1Q Be2 Ba4 Bh5 Qc6+ Ne4 Qc5 e8Q Qb5 Rh3 Rb8 a8N Qb2 Ng3 Qb3+ Qe3 Q3d3 Nab6 Qe5 Nh1 Bc2 Na4 Qe8 Nb2 Ne7 Qe1+ Kb3 Bd2 Nb4 Bd1 Ned5 Bc3 Rg8 Rc1 Ka3 h8Q Bb1 h7 Bh6 Qg7 Bg5 h8B Rf8 Qc7 Qf1+ Kg3 Rg8 Qc5 Bh7 Nf3 g1N Nh2 Nf3 Rc2 Rg7 Rg2 Nd2 Kg4 Nb3 Rgg3 Qfb5 Kf3 Rc7 Rg1 Bf4 Rg8 Bg5 Nd3 Rc6 Ba1 Qa6 Nb2 Qd3 Qb6 Rc4 Qc5 Qf1+
kn1B4/1nq5/Brp1Bp2/3BPb2/2KRN1R1/Q1QR1n2/1N1N1pr1/N3q1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 Ke2 h5 Kd3 a5 b4 c6 g4 Kc7 b6+ Kb7 d6 a4 d7 h4 g6 a3 g7 h3 e5 f3 b5 f2 g5 h2 g6 a2 Qe1 Ra4 Na3 Rh6 Nc2 Qc7 d8Q Rf4 Qd6 Qe7 Qa3 Rh8 Nf3 Rhh4 Rg1 h1N Rg4 Nh6 g8B Nf5 g7 Nd4 Kc4 Nb3+ d4 Qe8 Qc3 Bf5 Nd2 Rf3 d5 Rh5 d6 Nd4 d7 Rd3 d8R Ne6 Rdd4 Kc8 b7+ Kc7 Rb1 a1Q Rb3 Rg5 Be2 Qb1 Na1 Ng3 Bf1 Qd7 b6+ Kd8 Be2 Nc5 Bf1 Nge4 Be2 Nba6 b8N Kc8 b7+ Kc7 Bf1 f6 Bd5 Rh3 g8B Bh6 Bge6 Rh1 Bb2 Qe1 Be2 Qc8 Nd7 Nb8 Nb6 Rg7 Bf1 Bf4 Na4 Bh2 Bc1 Qd7 Nb2 Ng5 Bd3 Nf3 Be2 Nba6 b8N Nb7 Bd3 Qd8 Nd7 Bg1 Nc5 Kb8 Nce4 Qc7 Nd1 Rgh7 Qf8+ Qc8 Ba3 R1h6 Qa5 Rh5 Nb2 Rh2 Be7 Rg2 Kc3 Ka8 Bd8 Nc5 Qb4 Nb8 Ba6 Rd7 Kc4 Rb7 Rbd3 Qc7 Qc3 Rb6 Qe7 Nb7 Qf8 Rh2 Qfa3 Rg2
r1Qn3r/3N1R2/p3Q1B1/1nKp2B1/P2Q1b2/4q1qn/NRB1N1pB/4kNb1 w - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 Qf6 h3 Qd8 Kd2 g5 Ba3 g3 Bg2 g4 Bf3 b6 Ke1 Bb7 Bg2 Bf3 Bf1 g2 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 Kd2 Kf7 Ke3 Ke6 Kd4 d5 f4 h5 c4 b5 a4 a6 e4 h4 g5 b4 f5+ Ke7 g6 h3 c6 h2 g7 b3 c7 b2 c8Q Rh4 f6+ Kf7 c5 Kg6 e6 Qd7 f7 Rh6 e5 Kf5 e7 Rh5 e8N Ra7 c6 Bd6 f8B Rh8 e6 Ra8 c7 Qf7 e7+ Nd7 Ra2 Bf4 Bd3+ Kg5 Nd6 Kh4 e8B Ne7 g8Q Qh7 Nc3 b1Q Nc4 Nb6 Kc5 Qg7 Beg6 Nc6 Qge6 Qh6 Nd2 Qb3 Nf1 Nc4 Rb2 Nd8 Na2 Nd6 Ne2 Nb5 Bc2 g1B+ Qd4 g2 Bd6 Qg5 Be5 Qgg3 Bd2 Be3 Rg1 h1N Bd6 Nf2 Rh1+ Kg5 Rh7 Nh3 Rf7 Bg1 Be3 Kh4 Bc1 Qbe3 Be5 Qg4 Bd6 Bg5 Bh2 Bf4 Qcd7 Qd2 c8N Qg3 Nb6 Qdd3 Qc8 Qde3 Rf5 Kg4 Rf7+ Kf3 Nd7 Kf2 Bb3 Ke1 Bbc2 Qd3 Be3 Be5 Bf4 Qde3 Bg5 Bf4
B3r2b/Nn3R1p/1k2BR2/2p1Rq2/pB1N1BR1/2nb4/N2P1nq1/1K1Q1r1Q w - - 0 1 illegal: No possible last move
1R1r4/b1b4p/3P1pkq/2BQ1pn1/1Nr3R1/R5Kn/B4qbR/1QQN2BQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 b4 cxd5 e6 f5 exf5 a3 Nc6 axb4 Nb8 b5 Bc5 Rh4 Bd6 Rh1 Bf8 Kf2 a5 e4 c5 g4 c4 d4 f6 b4 Kf7 b6 a4 b5 c3 g6+ Kg7 b7 c2 d6 a3 d5 a2 b6 Ra6 g5 Nd7 b8Q Be7 b7 Ra5 e5 Qf8 e6 Ra4 Ne2 Rb4 Nec3 Nb6 d7 Rg4 d8B Rc4 d6 Nd5 Rh2 Nf4 Bb6 Rc6 Nd5 Qd8 Nb4 Rc3 Bc5 Bd7 B1e3 c1B Bc4 Qb6 Qh1 Bf8 e7 Qa7 e8Q Nh3+ Kg3 Bc6 Qec8 Bg2 Be6 Rc4 Nc3 Bb2 Bg1 Nh6 Nd1 Be7 Bf7 Rd8 Be6 Kf8 g7+ Ke8 g6 Bd4 Bd5 Nf7 Qcc7 Nfg5 g8Q+ Bf8 Qe6+ Be7 g7 Qb6 Qe4 Be3 Qa8 Qa7 b8R Qb6 Rc1 a1Q Rc3 Qc1 Qb1 Qd2 Ra3 Bd4 Bf3 Kf7 Qd5+ Kg6 Qcc6 Rh8 Be2 Bd8 Qc8 Qa7 g8R+ Qg7 Bd3 Bc7 Bc2 Qe2 Bb3 Be3 Ba2 Qf1 Re8 Qh6 Re4 Rd8 Rg4 Rc3 Bd4 Ba5 Qcc4 Bc7 Ba7 Qe2 Qf4 Rc4 Bb6 Bc5 Qfc1 Qc2 Ba5 Ba7 Bab6 Qe2 Bbc5 Qf2+
1BqqB2k/7p/1pQ2qbr/2BQRQrp/3K2N1/nPnQ3N/R6b/B1R5 w - - 0 1 legal: proof: e4 d5 h4 f5 exf5 b6 c4 g6 cxd5 Qd6 a4 Na6 h5 gxh5 a5 Nb8 a6 Qc6 Ra4 Qb7 axb7 Kd8 Ra1 Ke8 Ke2 Kf7 Kd3 Kg7 g4 c5 f4 a5 f6+ Kf7 g5 e5 b3 a4 d6 a3 g6+ Ke6 d7 a2 d8Q Bd7 f5+ Kd6 f7 Na6 b8B+ Nc7 f6 Ke6 g7 Bd6 f8B Kf7 Na3 Ra5 Nh3 Be8 Qf3 Nb5 Bb2 Ne7 g8R Nd5 Nc4 Na3 Rg5 Nc3 Ne3 Rg8 Qc6 Rg6 Ng4 Kg8 f7+ Kh8 Bg2 Re6 Rhc1 e4+ Ke3 c4 d4 Rd5 Re5 Rh6 Qdd7 Ra5 d5 Bc7 Kd4 e3 d6 e2 Qf5 e1Q d7 Qh4 Qd3 Qd8 Bc5 Bd6 Be4 Bc7 Bg6 Bd6 Rab1 a1Q Rc2 Bc7 Rg1 Qf1 Ba1 Qff6 Rgc1 Bd6 Ra2 Rb5 Ke3 Ra5 Rf5 Bh2 Re5 Nd1+ Kd4 c3 Be4 c2 Bg6 Qc8 d8Q Nc3 Qdd5 Qcd8 Re1 c1Q Rg1 Qcg5 Rc1 Qe6 f8Q+ Qg8 Qf2 Qgf6 Qff5 Qge6 Bf7 Qec8 Be6 Bg6 Bf7 Ra7 Be8 Rg7 Qdb5 Bf7 Qbf1 Rg5 Q1d3 Bg6
k4r2/3KpNp1/n2R3Q/1B1R1n2/2N1BRPN/B1bq2R1/r1pbrN2/2q1Q3 w - - 0 1 illegal: No proof kernel forced: wxDB
3QK1rQ/1B1p1RR1/nBn2r2/1p2kB1N/2BN4/p2qPQ2/Nqb2r2/b3Q3 w - - 0 1 illegal: No possible last move
4Q2q/k1prQ2K/pr3p2/Q2R4/QNP2nBn/2RNqB2/2Nb2bR/3R2n1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Nc6 g5 Nb8 g6 Qf6 Be3 Qd8 Bg5 hxg5 Kd2 d5 Ke3 Kd7 h4 f6 c4 g4 Kf4 a6 Kf5 d4 b4 d3 e4 g3 b6 Kc6+ e6 Kb7 e5 d2 h5 g2 b5 Qd4 h6 Ba3 h7 Bb4 Rh2 Ba3 Ne2 g1Q Nc1 Bf8 Bh3 Qc5 Qa4 d1N Na3 Nd7 e7 Qcd4 e6 Kb8 b7 Ka7 b8N Qh4 b6+ Kb7 Nc6 Ne5 Nc2 Qgg3 N6b4 Nc3 e8B Qg1 Bc6+ Kb8 b7 Nd7 e7 Qh6 e8R Bd6 Re3 Ka7 b8R Bf4 Bf3 Ne2 Rc3 Bd2 Ncd3 Qge3 Rb5 Ng1 Rd1 Rb8 Qa5 Rb6 Rd5 Rc6 Kg4 Ne7 g8Q Qg7 Kh5 Rb6 Qe6 Rd8 h8Q Nf5 Qe7 Nh4 Bf5 Qg8 g7 Nf8 Bh3 Nfg6 Be6 Nf4+ Kh6 Qf7 g8Q Qe8 Kh7 Bd7 Bh3 Bg4 Qge6 Rd7 Qc6 Be6 Qca4 Qd8 Qhg7 Qf8 Qg6 Bg4 Qe8 Bh5 Be4 Bf3 Bg4 Bg2 Bef3 Qh8+
2q1rN2/kP4pR/5p1b/1r2R1Qb/Bn1npK1N/NQ1R4/1Q1NqB2/2R3r1 w - - 0 1 illegal: No proof kernel
2R3B1/1p6/bP1q1R2/NnRQ1pRQ/1QKb1qQr/6pb/1r1N4/1Bk1n1B1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 h4 Kd7 d4 Kd6 Kd2 g5 Kc3 c5 e4 f5 a4 g4 b4 f3 b5 c4 h6 f2 e5+ Kc7 a5 g3 h5 Qh4 e6 Kd6 e7 Qh3 e8B Qg4 b6 Nc6 a6 Qf4 h7 Rb8 h6 Ne5 Nf3 Qh4 Bf7 Qf6 Ra5 Bg7 Rc5 Nd3 Na3 Qe5 Nd2 Qe1 Rh5 Nb2 Bd3 f1B Bb1 Ra8 Rg5 Nf6 Bg8 Kd7 d6 Qd1 d5 Ne8+ Kb4 c3 Nac4 c2 Na5 Nd3+ Kc4 Kd8 d7 Ke7 d8R Kf6 d6 Bd7 Rdc8 Bh3 Ba3 Bc6 d7 Nc7 d8R Nb5 Rd6+ Ke7 Bb2 Bd4 Rf6 Ne1 Qb8 Bf3 a7 c1Q+ Bc3 Bfg2 Qf4 Bc6 Qg4 Bd7 Ne4 Qf4 Bd2 Bc6 Be3 Kd7 Nd2 Bf3 Be6+ Kd6 Bd5+ Ke5 Bg1 Re8 h8Q Be2+ Kb4 Re7 Qf8 Rh7 Qg8 Rh8 h7 Bd3 Rd8 Rc8 a8Q Rc6 Rc8 Bdf1 Rc1 Rc2 Rc5 Ra2 Qaf8 Bd3 Rc8 Be2 R1c5 Rb2+ Ndb3 Qd3 Be6+ Ke4 Qgf7 Rg8 h8Q Rg7 Qd7 Rh7 Bg8 Rh4 Qhh5 Bef1 Ba2 Qd1 Qd5+ Kd3 Qfd6 Qdc1 Qf8 Qd6 Qe7 Qe3 Qf8 Qf3 Bb1+ Ke2 Kc4 Kd1+ Bd3 Be2 Nd2 Kc1 Qe7 Qff4 Qf8 Bf3 Bb1 Bfg2 Qe7 Bf1+ Bd3 Nc7 Rc6 Rc2+ Kb3 Qde5 Qb4 Qd6 Rc5 Be2 Be4 Ba6 Bd3 Nb5 Be4 Rc4 Bb1 Rc2 Ndc4 Ra2 Nd2+ Nc2 Kc4 Rb2 Qdf7 Ne1 Qd7 Qc6 Qd5 Qcd6
B1B1BN1N/1p1R2p1/1krQ3q/RP5B/2n1bRQ1/2qNq1Rr/3p1n2/b5K1 w - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 c5 gxh5 c4 b5 c3 Ba3 Rh7 Bb4 axb4 dxc3 Nc6 c4 Rh8 c5 Nb8 f4 d5 Kf2 Kd7 a4 Kc7 c4 e5 h4 e4 c6 d4 f6 b3 h6 d3 h5 d2 c5 b2 f7 Be6 f5 Nd7 h7 Rb8 f6 Bb3 h6 Nb6 a5 Ra8 a6 Bc2 a7 Rb8 a8B Qd6 Qg4 Bb3 Nc3 b1Q Nh3 e3+ Kg1 e2 Na4 e1Q Nb2 Ne7 Ng5 Qh4 Rh3 Qhe1 Rg3 Qdd3 Ne6+ Kc8 c7 Qd5 Nd3 Qee4 Ra5 Qc2 Be2 Nf5 Bf3 Be7 f8R+ Qd8 f7 Qc3 Be2 Kd7 c6+ Kd6 c8B Bc2 c7 Ne3 Bd1 Bf6 Bd7 Nbc4 c8B Qb6 Be8 Qa6 Bf3 Nd1 Be2 Nf2 Bd1 Rg8 h8R Qe3 h7 Kd5 Qe4+ Kd6 Bh5 Qab6 Qh4 Qh6 Qg4 Qbe3 Bed7 Kd5 Rd8 Re8 Nf8 Re6 Be8+ Rd6 Rd7 Be5 Ne1 Kc5 Nd3+ Kb6 Rg8 Bf6 h8N Bb1 Ne6 Bd4 f8Q Rc6 Qd6 Be5 Rf8 Bc2 Nb4 Be4 Rff7 Qa3 Rf4 Ba1 Nf8 Qac3 Rd8 Bh7 Nd3 Be4 Be6 Rc8 Bf5 Rc7 Bc8 Rf7 Rd7 Rf5 Bhg6 Rh5 Bgf7 Rh4 Bh5 Rh3
4N2n/P1n1r1pb/K2B1p2/bRNrRQ1N/N1kB1qr1/Q3Rq2/1p6/1B4R1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 Kd3 b5 e4 b3 a4 f6 h4 b4 Kc4 b2 Kb5 b3 e6+ Kd6 a5 c4 h6 c3 e7 c2 e8N+ Kd7 h7 Qe7 d6 Ke6 h5 Nc6 d5+ Ke5 d7 Qd6 d8B Bf5 h6 Bh3 a6 Ra7 Ne2 Qc7 d6 Na5 d7 Qb8+ Bb6 Qc7 d8N Qb7 Rg1 Bc8 Nf4 Bd6 Nh5 Qb8 Qd3 Bc7 Ne6 Nb7 Nc3 b1Q Ba3 c1R Na4 b2 Nec5 Ra8 a7 Rc4 Ka6 Qc2 Re1 Qb3 Re3 Bf5 Bh3 Bg6 Bf5 Ne7 Qb1 Kd4 e5 Rb4 e6 Nd5 e7 Kc4 Qa2 Rb5 Bb1 Nd8 Bb4 Nf7 Qa3 Bf5 Re5 Qf3 Re3 Rf8 h8Q Bh7 Qg8 Nh8 Qe6 Bd8 Qf5 Qbf4 Re5 Rb8 Re3 Bg8 h7 Rf7 Re5 Ng6 h8R Bh7 Nc7 Rb7 e8R Re7 Re3 Re4 Re5 Rd4 Ne8 Re7 Rf8 Nh8 Rf7 Re6 Rb7 Re7 Nb3 Re4 Bd4 Ba5 Bd6 Rc5 Rb5 Nc7+ Kb7 Rd5 Nbc5 Q4g3 Qa1 Rg4 Qa3 Be1 Kb6 Qgf4 Kb7 Bd2 Kb6 Ba5+ Kb7 Na8+ Ka6 Nc7+
2Kn4/p1r1R2Q/p1QR1Rn1/P1NNNbQ1/1Q4p1/2N4b/1q1b3B/2k1B1rq w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 d5 gxh5 d4 Bh3 d3 cxd3 Qe7 d4 Qa3 d5 Qd6 Bf5 Qf6 Bd3 Qd8 Ba6 bxa6 Kf2 Ke7 Kg3 g5 a4 f5 b4 c5 h4 g4 Kf4 c4 d4 c3 e4 c2 a5 Nd7 h6 Ndf6 e6 Kd6 h5 Qe7 e5+ Kc7 d6+ Kc6 d5+ Kb5 h7 Kc4 b5 Kb3 d7 Qd8 d6 Ne4 b6 Bb7 h6 Be7 Ne2 Qb8 d8N Nd2 d7 Nf6 Qe1 Nf3 Nbc3 Ng8 Bd2 Kb2 Nd5 c1Q Nec3 Bc6 b7 Bf8 e7 Ng5 e8Q Ba4 Rf1 Bd6 Ne6 Bb4 d8Q Qd6 b8B Qd1 Nc5 Bb5 Qc6 Qe2 Rd1 Nf7 Qg5 Ne7 Bc7 Rhc8 h8Q Bd3 h7 Qh6 e6 Nd8 Qg8 Qh1 h8N Be4 Ke5 f4 Kd6 f3 Kd7 f2 Nf7 Ng6 Ne5 Bf5 Qh7 Rab8 Bd6 Rb7+ Bc7 Qb5 Qe4 Qe2 Be1 Qc2 Rd2 Kc1 Qef4 Qb2 Qc4 Bc2 e7 Rcb8 e8R Bf5+ Re6 Rc8 Nd1+ Bc3 Qb4 Rcb8 Rd3+ Bd2 N1c3 Rc8 Ne3 Rcb8 Rd6 Rc8 Ned5 Rcb8 Rg1 f1B Rg3 Bh3 Re3 Rb5 Rf3 R8b7 Kc8 R5b6 Bb8 Rd7 Re7 Rbb7 Qb3 Rb4 Rf1 Rf4 Qb4 Rf3 Rf2 Rg3 Rf1 Rg1 Rf3 Be6 Rf6 Bf5 Ned3+ Kc2 Rde6 Qc1 Bh2 Qb2 Ne5 Kc1 Rd6 Rc7+
4nR1B/1R1N4/3QR1Bq/2b3pN/1nBPK1Nk/Qr5r/1b1bBp1p/N6b w - - 0 1 illegal: No proof kernel
2b2rN1/k1q5/bN1bQN1B/1b2P1N1/pRRn3r/n1Q4p/pB1B4/3BR2K w - - 0 1 illegal: No proof kernel
2B2b1R/N1k1NbQn/5b1Q/nr2p1br/1QBB1N1P/4p3/3pRN2/K1B2q2 w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 dxc5 h5 axb5 Rh6 gxh5 Rh8 Kd2 g5 Kc3 d5 b4 Kd7 Kb2 a5 c4 a4 f4 e3 f5 e6 h6 g4 f6 g3 f7 g2 b6 d4 b7 d3 c6+ Kd6 c7 d2 b5 Qg5 b6 Qf4 c5+ Kc6 h7 Qg4 Ne2 g1B Nf4 Nh6 Nc3 Ng8 Bc4 Qe2 Ne4 Ra6 Nf2 Qf1 Qg4 Bd6 f8Q Qd1 Qh6 Bf8 Qgg7 Nf6 h4 Qe2 Rh2 a3+ Ka2 Bd7 c8N Be8 Ne7+ Kd7 Kb1 Nc6 b8Q Bf7 b7 Ra5 Ra2 Qf1 Ka1 Rb5 Rb2 Rg8 h8B a2 Rb4 Nh7 Qd6+ Ke8 b8N Na5 c6 Rh5 Rg2 Bh2 c7 Rb5 c8B Rh5 Ne2 Bf4 Nbc6 Rb5 Qb8 Bg5 Na7 Kd8 Qf4 Rb6 Qg4 Kc7 Nf4 Rb5 Rb1 Rf5 Rb8 Rb5 Qb2 Rg6 Bd4 Rf6 Qb4 Rff5 Kb2 a1B+ Kb1 Bf6 Qgg7 Bb2 Rh2 Ba3 Ka1 e5 Nh1 Rg5 Re2 Rh5 Nf2 Bg5 Nec6 Bfe7 Ra8 Bef6 Ne7 Qd1 B8e6 Qg1 Rh8 Qf1 Bc8 Rb6 Nf5 Qh1 Qc3 Bf8 Qb4 Rb5 Ne7 Qf1
1BBQ1B2/1bK2Nbn/1nR4p/2PrNR2/1B1bRQ2/p2p2r1/5N1b/qN3k2 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 e5 b4 a5 c4 e3 f4 a4 g4+ Kg6 b6 a3 b7 d6 b5 e4 b6 e2 c6 e1B c7 e3 c5 e2 f5+ Kf7 f6 Kg6 f7 Ra5 Nf3 Nh6 Rh4 Nd7 Kc6 d5 b8B d4 b7 Be7 f8B Ra4 Bh3 Nf7 Bd2 Bg3 Bb4 e1B Ra2 Qe8 Rf2 Bgd6 Qc1 d3 Qf4 Be5 Nfd2 B5f6 Ne4 Rg8 Rf3 Bg7 Nf2 Nf6+ Kb6 Qd8 Kc6 Nd6 Kb6 Nc4+ Kc6 Be6 c8R Qd4 Kc7 Qb2 Bc3 Bd5 Bb4 Kf7 g6+ Ke6 Qd2 Ke5 g5 Be4 Rf5+ Kd4 Qf4 Bc3 Bg4 Nb6 Bh3 Bh6 g7 Qa1 g6 Ra8 Qg4 Ke3 Qf4+ Ke2 Rg4 Rh8 g8Q Bd4 g7 Bg2 Qd5 Kf1 g8N Bg7 Nh6 Rg8 Nf7 h6 Qd8 Nh7 Qfd6 Qc3 Re4 Qa1 Qf4 Ra4 Ba7 Bh4 b8N Bg3 Nd7 Bh2 Bb8 Ra8 Nde5 Ra7+ Kd6 Rd7+ Kc6 Rd6+ Kb7 Rd5 Rc6 Bh8 Kc7 Rg3 Rh5 Bg7 Bc8 Bh3 Rg5 Be6 Rf5 Bd7 Re6 Bc6 Ref6 Ba8 Rc6 Bb7
k1KBb1R1/1n1NQ3/B1brqp1p/2pbBP2/5R2/N2Q2N1/2B3r1/1bR3nR w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 hxg5 b5 c3 b3 Rh4 b4 Rh1 b2 Rh6 b3 Rh1 Bb4 cxb4 Ra7 Na3 Ra4 Nb1 Ra8 Kd2 c5 Kc3 d5 a4 Kd7 e4 Kc7 f4 Kb7 g4 h6 g6 d4+ Kc4 d3 Kb5 d2 g7 Ra7 a5 Nc6 e6 Qd7 f5 Qd6 g5 Qd8 e7 Rh7 e8B Ra8 g6 Qh4 e5 Qg3 e6 Rb8 e7 Qc7 Ne2 Ne5 Na3 b1B Ng3 Qd8 a6+ Kc7+ Ka5 b2 b5 Qd3 b6+ Kd6 b7 Kc7 a7 Nf6 g8R Nf3 a8R Qe3 Ka6 Be6 g7 Be4 Ba4 b1B e8Q Bc6 Bc2 Rd8 b8B+ Kc8 Bb2 Bed5 B2e5 Ng1 Qe7 Ne4 Ka7 Nd6 Ba6+ Nb7 Bf6 Bba2 Rc1 Bb1 Qf1 d1B Qd3 Bg4 Bfe5 Bh5 Bec7 Rf8 Bd8 Qe6 Kb6 Rh8 Ra7 Re8 Be5 Rh7 Bd4 Kb8 Be5+ Nd6 Rb7+ Ka8 Kc7 Rf8 Rb4 Nb7 Rf4 Bg6 Rh8 Bh5 g8N Rg7 Nf6 Rgg8 Ne2 Rg2 Nd7 f6 Ng3 Be8 Kc8 Rg8 Ra4 Rg4 Rg8 Rd4 Rb4 Be4 Rc4 Rd6 Ra4 Bf3 Rf4 Bfd5
2RN1K2/2N5/1b1p1r2/1b1p3B/kb1P2BN/1n1b1Qq1/n1p1QRNr/1R2BB2 w - - 0 1 illegal: No proof kernel
2RbQK2/r2Q1NP1/rrb3Qn/3qRR2/N1p3p1/1B2r1p1/2Q2n2/R1B3Nk w - - 0 1 illegal: No proof kernel
1k2r1br/1Bb3p1/n3Bn2/3Bp1PN/2R1NQ2/1N4Qq/1pN2R1r/r2BKR2 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 c5 d4 f6 dxc5 h4 g4 f5 exf5 Na6 Bf4 Nb8 Bg3 hxg3 Kd2 e5 f4 b5 h4 d5 a4 Kd7 c4 Kc7 a6 g2 a7 b4 f6 b3 f5 d4 c6 b2 g5 d3 c5 Qd5 h5 Nd7 h6 Qe6 h7 Ba6 a5 Bb5 a6 Qe7 f7 Qe8 f6 Kc8 c7 Qe7 Qe1 Nb6 Rh4 Nd7 Na3 Nh6 Nc2 Nb8 Nf3 g1R Be2 Rf1 Nfd4 Qd7 Nb3 Qf5 Qg3 Bc6 Rc4 Rf2 Rf1 Bd7 Ke1 Be7 f8Q+ Be8 f7 Rg8 h8N Bd8 Ng6 Rg2 Nf4 Rf2 Nh5 Kd7 c8B+ Kc7 c6 Rh2 Be6 Ng4 Bf3 Kb6 c7 Rh8 Be2 Nc6 c8N+ Kc7 Nd6 d2+ Kd1 Rc8 a8B Kb8 Ne4 Nb4 Bad5 Bc7 Bf3 Nf2+ Ke2 d1R Bg4 Rc1 Kd2 Rd8 Bd1 Qh3 Ke1 Ng4 Bc8 Ra1 Bce6 Rd7 a7+ Kc8 a8B Na6 Bab7+ Kb8 Qg8 Rd8 f8R Bg6 R8f2 Bh7 Qf8 Bg8 Qf6 Re8 Qff4 Nf6
nk3rR1/2pB3q/R1qR1b1B/2R1NQ1Q/1N3N2/1pp2BNr/2Pnn2K/1r6 w - - 0 1 illegal: No possible last move, all moves rejected
Bq1Bq1Q1/Rr2R2p/NQ1Rn1r1/b4bpk/2pN3B/N5r1/K5P1/1RbN4 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Nc6 h5 Nce7 Qa4 Qd6 Qd1 Ng6 hxg6 Qd8 b4 c5 d4 a5 Kd2 f5 Kc3 f3 Kb2 f2 e4 a4 e5 c4 g7 Kf7 b6 Kg6 b5 f4 b7 a3+ Ka2 f3 b8N Bd6 e6 Qc7 e7 Qa7 e8R Qa4 b6 Ra5 b7 Bh2 d6 Bg3 d5 Qb5 d7 Qa4 d8R Bd6 Be3 Rb5 Nc6 Nf6 b8N Bf5 Ne2 Rg8 Qd4 Nh5 Re7 Rb7 Na6 Nf4 Nec3 Bc7 d6 Ne6 d7 Ba5 Bd3 f1R Be4 f2 Qb6 Qb5 Rg1 Kh5 Nd4 Re1 Bf4 f1Q Nd1 Re3 Bg3 Qf4 Bh4 Qb8 Bd5 Rg3 Rf1 Rf8 g8Q Rf6 Rg1 Rg6 Be4 Ra7 Ba8 Qa4 Rc8 Rc7 d8B Rb7 Rc6 Qb5 Rd6 Qa4 Nbc3 Qe8 Ncb5 Rc3 Rb1 Rg3 Ka1 a2 Na3 Qf7 Kb2 a1B+ Ka2 Bb2 Re1 Qf8 Re5 Qe8 Rc5 Rd7 Rc7 Bc1 Ra7 Rb7
Q4q1N/NpRp3B/r1N2Q2/2q2nBR/p4qNR/r2P1b2/1nk5/KR2Bn2 w - - 0 1 illegal: No proof kernel forced: wxLB
B2k2q1/1bb4N/1p1p1b2/RB2nNQK/B3Nr2/B1qQ2Nq/Q1pPR3/5n2 w - - 0 1 legal: proof: e4 g5 b4 f5 exf5 g4 b5 Kf7 b6 Ke8 c4 g3 c5 axb6 c6 Ra7 hxg3 b5 g4 b6 g5 Rb7 cxb7 b4 Ke2 e5 Kf3 c5 Kg4 e4 f4 d6 a4 e3 a5 c4 g6 c3 g7 b3 a6 e2 a7 e1B a8B c2 Nc3 h6 Ba3 b2 Rh2 b1Q Ne4 Kd7 f6 Bg3 f7 Nc6 b8Q Qa2 f5 Qf6 Qa7+ Bb7 Qf3 Nce7 Ne2 Qe5 f6 Nc6 Qd3 Bf2 N2g3 Qc3 Kh5 Nge7 g8B Bg7 f8Q Nd5 f7 Bf6 Qg7 Ne5 f8N+ Kd8 Nh7 Ne3 Bb3 Rf8 Ba4 Qg8 Qg5 Rf7 Be2 Nf1 Qaa6 Bd4 Qac4 Be7 Qa2 Rf2 Nh1 Rf7 g4 Rf4 Nhg3 Bf6 Qf5 Be3 g5 Bf2 g6 Be1 Nh1 Beh4 g7 Qb2 Qe3 Be7 Bb3 Bd5 Bc5 Qc3 Qb1 Bhf6 Qg5 Ke8 Ra5 Qf8 g8N Bb7 Nhg3 Bd8 Ne7 Qg8 Nef5 Bc7 Ba4+ Kd8 Qb3 Rf3 Kh4 h5 Beb5 Rf4+ Kh3 h4 Re2 Rf3 Qd3 Rf2 Ba3 Rf4 Kg2 h3+ Kg1 h2+ Kg2 Rf2+ Kh3 Rf4 Qa2 h1Q+ Rh2 Rf3 Kh4 Rf4+ Kh5 Qg1 Rf2 Qg2 Re2 Qh3+
NR4K1/B2k3N/np2nb1p/3n1R1Q/3rR1B1/4n2P/NpbqNQ2/4nR1Q w - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Na6 g4 Rb8 f4 Nh6 b4 axb4 g5 Nc5 f6 Na6 f5 Ra8 Bd3 Nb8 Bf1 Kd7 f7 Ra6 Qe2 Rc6 Qd1 Rf6 gxf6 Ng8 Ke2 c5 Kf3 e5 Kg4 g5 Kh5 b3 a4 h6 Kg6 b2 d4 c4 h3 e4 d6 e3 a5 e2 d5 e1N a6 g4 a7 g3 a8N c3 Ne2 g2 Be3 g1N Ra4 c2 Ba7 c1N Nbc3 b6 Na2 Na6 Re4 Be7 Kg7 Nc7 f8N+ Ke8 Nh7 Be6 f7+ Kd7 f8R Nc2 f6 Bg4 f7 Nb3 Qe1 Kc8 d7+ Kb7 d6 Kc6 Qh4 Na6 Qh5 Nbd4 Bg2 Bh4 Bf3 Bf5 Bg4 Ngf3 Rd1 Bg6 Rf1 Nfe1 Rf5 Qg5 d8R Ne7 d7 Ne3 Rb8 N7d5 d8Q Qf4 Qf6+ Kd7 Qe5 Qf2 Qh2 Qg2 Qh1 Be7 Rfc8 Rd8 f8Q Ne6+ Kg8 Bf6 Rc5 Qh2 Rf1 Qd6 Ref4 Bc2 Re4 Nc3 Ra5 Qd2 Raf5 Ncd5 Qg6 Rc8 Qh5 Rc4 Qc5 Rd4 Qf8 Bd8 Qf6 Be7 Qfh4 Bd8 Qf2 Bf6
2N3QB/B2QK1bN/n2Q1nrR/1N2qRnp/1Nn2Qp1/8/p6P/1kr1nB2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 exf4 cxd5 f3 Na3 f4 Nb1 Bf5 gxf5 Qd6 Ra3 Qe7 Ra1 Qd8 Kf2 Kf7 b4 Kf6 d4 h5 e4 c5 d6 a5 d7 g5 e5+ Ke7 d5 c4 f6+ Kf7 d6 Kg6 e6 Kf5 f7 Ke4 b6 g4 e7 a4 e8N a3 b5 c3 b7 c2 b6 Qc7 d8Q Ra7 d7 Nf6 Qd6 Qc4 Ne2 Qa2 Bb2 c1N Nec3+ Kf5 Nd5 Ke4 Nb4 Bg7 f8N Qb3 Nh7 Na6 b8B Qc3 b7 Qe5 Bd4 Ra8 Bba7 Rc8 b8Q Rg8 Q8e7 Rc5 d8Q a2 Qed7 Rc6 Na3 Rc4 Nb5 Nd3+ Kg1 f2+ Kg2 Rc1 Rb1 Qe7 Be5 f3+ Kg3 Ne1 Kh4 Qe6 Kg5 Qe7 Bc4 f1N Rg1 Nd2 Bf1 f2 Rg3 Nc4 Rf3 Nd2 Rf5 Nc4 Bed4 Qe5 Kg6 Bh8+ Kf7 Rg6 Rb3 Bg7 Bb2 Qd5+ Ke7 Qc5 Bc3 Ke3 Bd4+ Kd2 Re3 Qd5 Re6 Qe5 Qbc7 Rd1 Qa8 Kc1 Qcb8 Kb1 Qf3 Rc1 Qf4 Ne4 Qbc8 Ng5 Qa8 Qd5 Ref6 Qc5 Qd5 Qc7 Qg8 Qc5 Bc3 Qe5+ Q7e6 Bh6 Qc5 Qe4 Bh3 f1N Ned6 Ng3 Nc8 Qe3 Bf1 N3e4 Qd7 Rg7+ Qf7 Rg8 Qcd6 Qc5 Rg6 Qd5 Bg7 Nf6 Bh8 Qe5+ Qfe6 Bg7 Rh6 Bf8+ Kd8 Rg6 Qed5 Bg7 Qg8 Qc3 Ke7 Qe5+
1q1k1N1b/Rp1pb3/1b1n2K1/1b2RN1p/5rB1/Q2N3b/3P1QQ1/B1R1nR1Q w - - 0 1 illegal: No proof kernel forced: wxLB
1Q1b3N/pQB2RR1/2K1p3/5rNB/brB2r1b/4p1n1/1q1kPB2/2N1rRR1 w - - 0 1 illegal: No proof kernel
2BB2Nk/nNB2K1q/3pQ3/8/n3r2N/1Q1P1ppr/Q1nR2B1/Rr2Nn1b w - - 0 1 legal: proof: b4 h5 f4 e5 a4 exf4 c4 b5 cxb5 h4 a5 h3 gxh3 Be7 h4 Bc5 h5 Bb6 axb6 Qg5 Bb2 Qe7 Bc1 Qd8 Kf2 Kf8 Kf3 a5 Kg4 g5 Kf5 Kg7 h4 c5 e4 f6 e5 c4 e6 g4 b7 d6 h6+ Kh7 h5 a4 b6 g3 b5 c3 d3 c2 Qd2 a3 Bg2 a2 Na3 f3 Rh2 f2 Nc4 f1R+ Nf3 Ra7 Na5 Na6 b8Q Rg1 b7 Qe8 b6 Rh1 Ne1 Bd7 Qc8 Qe7 b8B Rc7 b7 Rc6 Bc7 Rg1 b8Q Rc4 Qb3 Qf8 Nb7 Bc6 e7 Re4 e8B Nc5 Qce6 Na4 Bd7 Qg7 Bb2 c1N Bc8 Qf8 Bd4 Bd5 Bdb6 Bc6 Rb1 a1N Qda2 Nc2 Ra1 Qg7 Bd8 Rh1 Bbc7 Qf8 Qe5 Ne7+ Ke6 Kg8 h7+ Kg7 Qc4 Nb3 Qb5 Nd2 Qbb3 Nf1 h6+ Kg6 Qc4 f5 Qcb3 Rb4 Qed5 f4 Qdc4 Qg7 Qd5 Re8 h8N+ Kh7 Ng6 Re4+ Qe5 Rh8 Nh4 Qg5 Kf7 Bd5+ Qe6 Nc6 Bf3 Na7 Rd2 Rh3 Bh1 Re8 Bf3 Kh8 h7 Qh6 Bg2 Bc6 Nf5 Rg8 Ne7 Rg5 Ng8 Rb5 Qbc4 Rb2 Qcb3 Rb1 Ke7 Kg7 h8N Kh7 Ng6 Bd5 Nh4 Kh8 Bf3 Rc4 Be2 Bh1 Bf3 Re4 Bg2 f3 Kf7 Qh7+
b1n2QR1/nB2q1rQ/4R3/5p2/1N1B1bpN/B3Rnp1/1n3QPk/Q2K2Rq w - - 0 1 illegal: No proof kernel
1N1q1rN1/1Q1Q2pB/1B1p2Br/R4pb1/1QKPn3/2q3rQ/N1r2k1n/B5R1 w - - 0 1 illegal: No possible last move, all moves rejected
3k1n2/K3p2N/b4Bq1/1b2bpR1/p1NB2N1/qr1r1Q1b/2B1QPQ1/2BR3N w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Bg7 d5 Kf8 Ra4 Nc5 Ra1 Nd7 e6 Bh6 exd7 Kg7 Ra2 Kf6 Ra1 Bf8 Ke2 h5 Kd3 a5 Kc4 c5 g4 h3 b4 h4 b6 h2 Kb5 a4 b7 h3 b8Q c4 g5+ Kg6 Nd2 f5 Qe2 Kf7 g6+ Kf6 g7 c3 Nc4 c2 Qb7 Nh6 g8Q Rh7 Qg2 Qc7 d8N Ra7 d7 Qg3 Kb6 Qg6 b5 Qh5 d6 Ng4 Qbf3 Bb7 Ne6 Ne5 d8N Nc6 d7 Ba6 Nf7 Nd4 d8B Rd7 Neg5 Ne6 Nh6 Rd3 Ka7 Qg6 b6 Bg7 b7 Nf8 b8B Bh8 Bb6 Rg7 Ne4+ Ke6 Ng4 Kd7 Bd4 Kd8 Ng5 Rh7 Bg3 Be5 Bh4 Rh6 Nh7 Rh5 Bd2 c1Q Bf6 Qa3 Rd1 Rg5 Bc1 Rb3 Nh6 Rg3 Ng4 Bb5 Qee3 Rd3 Ne2 Rb3 Rg1 h1B Qee4 h2 Qc2 Rh3 Ng3 Ba6 Bd3 Bb5 Qf1 Bg2 Qce2 h1B Bc2 Ba6 Qf4 Bc6 Qff3 Bg2 Nh1 Bd7 Qee3 Rg3 Qee2 Bh3 Q1g2 Bdb5 Qh2 Rg2 Nh6 Qg5 Qh5 Rg4 Rg3 Re4 Qhf3 Ree3 Qhg2 Qg7 Rg5 Qg6 Ng4 Red3
r2Q2q1/RK1RN1N1/1Qr3r1/1Q1p3r/2Q1R3/p1n2pkB/1R1PqN1b/5bB1 w - - 0 1 legal: proof: g4 e5 a4 b5 axb5 h5 gxh5 Be7 b6 Bf8 b7 Bd6 c4 Qe7 f4 exf4 b3 Qd8 b4 Bf8 c5 Na6 b5 Nb4 Bg2 Nd5 Bf1 Nb6 cxb6 Qg5 Bb2 Qe7 Bc1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kh4 b8R f5 e4 c5 b7 g5 e5 a5 e6 f3 b6 a4 h6 g4 e7 c4 e8N f2 h7 g3 Qb3 c3 Ng7 c2 Nh3 d6 Kc6 f4 Ba3 c1Q+ Nc3 g2 Bc5 g1R Qc4 Ra5 Nd5 Qa3 Ne7 d5 Re1 Rg3 Re4 Be6 Ra8 Qa2 b8R a3 b7 Rg5 Ra7 Rg3 Bg2 f1R Nf2 Qa1 Bh3 Rc1 Qb5 Rc2 Rb1 Rg5 Rb2 Nf6 Rba8 Rg2 b8Q Qe1 Q8b6 Qe2 Rd7 Rg6 Kb7 Qe8 Be3 Rc6 Ra7 Bg4 Qc4 Bf3 Bd4 Bg2 Qcb5 Bf1 Bc5 Rg8 h8Q+ Rh6 Qh7 Rh5 Qf5 Qd8 Qe5 Qe8 Qd4 Qg6 Qda4 Qgg4 Qac4 f3 Nd3 Ra6 Bg1 Rgh8 Nf2 R8h6 Bg2 Rg6 h3 Kg3 h4 Qe6 Bh3 Ra4 Q6a6 Qg8 Qab6 Re5 h5 Ra5 h6 Rh5 Re6 Ne4 h7 Nc3 h8Q Ra6 Re4 Ra5 Nc8 Bd6 Ne7 Qd8 Be6 Kg2 Ra6 Bh2 Bh3+ Kg3 Qf8 Qe8 Qg8 Qf7 Qgd8 Qg8 Qba4 Rac5 Qaa5 Rc8 Qab5 Ra8 Ra7 Rcc6
bk3N1K/2R5/2qRpBbQ/1pn3BB/1b3p2/4N1r1/1PRQnB2/qQ2bR2 w - - 0 1 illegal: No proof kernel
R1Q1r1B1/2p1KNRB/1k1rb1Nb/p3p2b/2Pnnr2/B1B1R1Q1/5R2/N2b4 w - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f4 dxe4 fxg5 Nh6 h4 Ba6 g4 Qd6 g6 Qf4 g7 Bb7 g5 Bc8 g6 Qg5 hxg5 Ng8 Kf2 Kd7 Ke3 a5 Kd4 f5 Ke5 h5 d4 f4 c4 f3 b4 f2 d5 h4 d6 e6 b6 Kc6 b7 e3 d7 h3 d8N+ Kb6 b5 h2 Qg4 e2 Ra2 e1R+ Ne2 Rh3 Ba3 Rc3 Nd2 Rc2 Nb3 Na6 b8R+ Bb7 Nf7 Rb2 Na1 Reb1 Qg3 Rd1 Nf4 Ka7 Bd3 Bc5 Re1 f1B Re3 Nh6 Kf6 h1B g8Q e5 g7 Rc2 g6 Rf2 Qc8 Bhd5 g8R Be6 g7 Bf3 Bh7 Nf5 Ng6 Nd4 Rb2 Bb6 Ke7 Bh5 Rbe2 Rf4 Rg2 Nc2 Rf8 Rd5 g8B Bfe2 Rf2 Bd4 Rd8 Nc5 Rd7 Nb7 b6+ Ka6 Qd8 Nc5 b7 Ne4 Qf8 Kb6 Qc8 Ra7 Ra8 Bd1 b8B Rd6 Bb2 Bc3 Bc1 Nd4 Ba3 Rb7 Ba7+ Ka6 Qd8 Bd2 B7c5+ Ra7 Bcb4 Kb6 Qc8 Rb7 Bc3 Rb8 Nh6 Rf6 Ke8 Rf4 Rg7 Bc1 Nf7 Rf5 Re1 Bh6 Ke7 Rf3 Re3 Rf4 Qd7 Rd8 Qc8 Re8+
BQq2R2/N5nb/1RBB1K2/N1np1N1P/Qb2Rp1R/3kpr2/p5r1/3b2B1 w - - 0 1 illegal: No proof kernel
kB2N2B/Nr1qR1B1/n1R1B3/2p1pn1p/br2R1P1/1Np1N3/3b1b1Q/4QK2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 f4 Kd7 b4 c5 d4 Kc7 g4 Kb7 g6 h5 f6 a5 d5 e6 b6 a4 g7 a3 b5 a2 d6 Ra4 f7 Qc7 d7 Nc6 d8N+ Ka8 f5 Qe5+ Ne2 Ra5 b7+ Kb8 f6 Rh7 Nc3 Qf5 Nd5 Nge7 g8N Nb4 Ne3 Ng6 Bb2 Qd5 Nc1 Rh8 Nb3 Qd6 Nc6+ Kc7 b8Q+ Kd7 b6 Qd5 b7 Qd3 Qh2 Rh7 b8B Nh4 Na7 Bh6 f8B Rb5 f7 Nf5 Bh8 e5 Bfg7 Na6 f8R Rb4 Re8 Bb7 Qde2 Bc6 Re7+ Kd8 Qd2 Qd7 Nf6 Ba4 Ne8 Bf4 Rd1 a1B Kf2 Bb2 Qe1 Bd4 Rb1 c3 Bc4 Bg5 Be6 Bh6 Kf1 Bf4 Nb5 Kc8 Na7+ Kb7 Rg1 Bg5 Rg2 Bf4 Re2 Ka8 Ra1 Bc6 Ra5 Ba4 Rb5 Bh6 Rb6 Bf4 Rc6 Bh6 Ng2 Bd2 Re4 Bf2 Ne3 Rh6 Bf7 Rd6 Bc4 Rd4 Bd5 Rb7 Be6 Rdb4
1b6/4k1rR/BK3r2/1p2q1b1/Q1b1RNnN/1Rp1BP1p/1pB3n1/1QR1B2N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 e5 Kd3 c5 Kc4 h5 Kb5 c4 g4 e4 a4 b3 d4 b6 a5 h4 a6 b2 f3 e3 a7 e2 d6 e1B f6 c3 g6 Nc6 g5 Nge7 f7+ Kd7 d5 Rh6 g7 Ng8 g6 Nb8 Nd2 Qc7 Nh3 Bf2 Nf4 Kd8 d7 Nf6 g8B Ba3 f8N Bfc5 g7 Be7 Bh7 Ng4 g8R Rf6 Bc2 Bad6 N8g6+ Rf8 Ne4 Ne3 Ng3 Nc4 Be3 Bb4 Qb1 Bed6 Rh2 Bbc5 Nh1 Be5 Rh8 h3 Nh4 Qd6 Re2 Nc6 Rh7 Rf6 Re1 Rb8 a8Q Rb7 Qa4 Qb8 Ra3 Be7 Rc1 B5d6 Ka6 N6e5 Rb3 Ng4 Be2 Qc7 Bf1 Qc5 Bfd3 Bb8 Bf1 Kc7 d8R Be6 Re8 Kd6 Bfd3 Bd8 Be2 Bg8 Re4 Rg7 Bf1 Be6 Bfd3 Ke7 d6+ Kf8 d7 Qe5 Bf1 Be7 d8B Bf7 Bf2 Nce3 Be1 Ng2 Kb7 Be6 Ba6 b5 Bb6 Bc4 Bd4 Rf5 Bg1 Bg5+ Kb6 Ke7 Be3 Rf6+
1Q3r2/R2nbR1K/1pBB2n1/1p1Q2bq/1BP3b1/p1RR3N/1p1rk3/N1Q3Q1 w - - 0 1 illegal: Other
5Q2/1nK2rr1/qpPNB3/Q3bRQQ/1BpR2p1/5bB1/B1pnr3/k1N4N w - - 0 1 illegal: No possible last move, all moves rejected
2R2bkB/1B1Brnp1/1N1p1rn1/pbBR4/Q4P1Q/q2rN3/2R2p2/1K1N2R1 w - - 0 1 illegal: No proof kernel
2n2Qb1/3nP1r1/2K1B1Bk/p1Q1p1p1/4Q3/3R2qN/rr1B3p/RBQNb1R1 w - - 0 1 illegal: No proof kernel
1b2NRQ1/1k1pR2n/4K3/4BQp1/4pq1b/1pN2P1r/N1B1R1QR/2rN2nb w - - 0 1 illegal: Other
1BK5/1qp1k1rn/B1PRnN1Q/Q2Rr3/B2QbbR1/2p4R/2Qp2p1/n4N2 w - - 0 1 illegal: No proof kernel
3BK3/1p4pp/1Nbn3R/1B1R1PNr/pn3Q2/2q1bR1B/1n2Q3/Q1R2Qrk w - - 0 1 illegal: No possible last move
kB1Q1R2/1p1pBn2/2r1N3/1B4QR/n2N1KpN/1bQQbp2/1P1nq3/3B1r2 w - - 0 1 illegal: No proof kernel forced: wxLB
2n2RNk/1pp2Qp1/p1P1R3/2n1r3/5qKb/NBbrB1B1/2N1RRN1/n3Q3 w - - 0 1 illegal: No proof kernel
8/R2BpRpk/RB1NB2b/NpN1rn2/Pqn1Q3/R2r2Q1/2q2N1p/3b2K1 w - - 0 1 illegal: No possible last move, all moves rejected
4q3/2nQR1nb/2BNbBN1/Qr1p2pp/R2P2NB/1kbn2p1/5Q1Q/2K4N w - - 0 1 illegal: No proof kernel
NB2q2K/3R4/nr2Rppk/3NBb2/Qp1Qrb2/1bR2P1N/B2pr3/4NR2 w - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 h5 gxh5 Nd7 dxc5 axb4 Be2 d4 Bc4 Nb6 Bf1 Nd5 exd5 Be6 Kd2 Bd7 Ke1 Bc8 Ke2 b5 Kd3 e5 Ke4 d3 c4 b3 h4 g6 a4 b4 h6 b2 h7 Qd7 a5 Qb7 h5 Qb6 d6 Bb7+ c6 Rb8 a6 Bc8 h6 Be6 d7+ Ke7 d8R Kf6 f3 Bg7 c5 Qc7 a7 Bc4 a8N Qc8 c7 Qh3 c8N Qe6 c6 Qd6 c7 Ba6 Qa4 Qe6 Ncb6 Rb7 c8R Qd7 Nh3 Bc4 Bf4 d2 Na3 b1B+ Nc2 Qe8 Rd7 Bb3 Rc3 Ne7 Bc4 Nc6 Re1 Nb8 Be6 Rg8 h8B Na6 h7 Rb8 Bc4 Rf8 Kd5 e4 Kd6 e3 Nd5+ Kf5 Rf1 e2 Ne1 Bh6 Bhe5 Bg5 h8Q f6 Qh4 Bh6 Bg3 Rf7 Qd4 Re7 Ra3 Bf4 Bh2 B3c2 Ba2 Rb6+ Rc6 Bd1 Rd3 Bb3 Rc3 Rh7 Bg3 Rh4 Bh2 Bh6 Bhg3 Re4 Bh2 Bf4 Bg3 Qh8 Ke7 Bd3 Kf7 Qe8+ Kg7 Bdc2 Nd3 e1R Re6 R1e2 Ne1 Bd3 Nf2 Kg5 Nh3+ Kh5 Bh2 R4e3 Kh7 Bf5 Bb8 Re4 Kg7 Qe7+ Kh8 Kh6 Bg3 Bg5 Bgd6 Bf4 Be5 Qe8+
QB3n1Q/1r1q1ppp/2Rrk3/N3B3/2RR2P1/Q4b2/r2Q1B1p/1Nr1bK1B w - - 0 1 illegal: Other
N1KNB1Q1/R4n2/1bNp1b1p/r2Q2rB/kq5p/3bQB2/1B1P1p1Q/b2R4 w - - 0 1 legal: proof: b4 g5 f4 e5 fxe5 b5 h4 gxh4 a4 Nc6 axb5 Rb8 c4 Ke7 c5 Bg7 b6 Na5 b5 Bf8 c6 Nb7 cxb7 Ke8 Ra4 Ra8 Ra2 Qg5 Ra1 Qd8 Kf2 a5 Kf3 f5 Kf4 c5 b8Q a4 g4 c4 e4 h6 g5 a3 b7 a2 g6 c3 b6 c2 e6 Bd6+ e5 Bc5 g7 Ne7 Ne2 Bg1 Bb2 Nc6 e7 Qc7 Nd4 Ra7 Qf3 Ra5 Qa8 Ra6 b8Q Nd8 b7 Ra5 Bg2 Ra7 Nc3 Ra3 Na4 Qc6 Nb6 Qf6 Ne6 Nf7 Nd8 Qd6 Qc7 Bd4 b8N Rg8 Qe3 Qb4 Qd5 Ba6 Na8 Bd3 Rhd1 Bb6+ Qcc4 Be4 Qce2 d6 Bh1 Ra6 Qh2 Ra3 Nbc6 Kd7 Nd4 Bd3 e6+ Kc8 Bg2 Kb8 Bh1 Ka7 Be4 Ka6 N4c6 Re8 g8Q Ra4 Kf3 f4 Kg4 f3 Kf5 f2 Kf6 Bc5 Bf3 Kb5 Qh7 Rg8 Qh8 Ne5 Qh7 Rg5 Qg8 Nd7+ Kf7 Ne5+ Ke8 Nf7 Kd7 Ra6 Kc8 c1B Be5 Bb2 Bh8 Be5 Bg7 Bf4 Bb2 Be5 e8B Nh8 e7 Bf6 Bg6 Nf7 e8B Ra7 Qdd4 Bb6 Bgh5 Ra3 Rac1 Ra7 Rc3 a1B Ra3 Re7 Ra7 Ree5 Re7 Rc5 Qd5 Ka4 Ra7+ Ra5
2q3Bn/2q3RR/1kN1KB2/4BQb1/rN6/4rRrB/PrR2b1B/B2bn3 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 Kd2 Kd7 Kd3 Kc7 Ke4 g5 Ke5 b5 f4 b3 h4 b4 f6 b2 d6+ Kb7 c6+ Kb6 d7 e6 c7 b3 f7 g4 f5 g3 f6 g2 h6 Ra7 h7 Ba3 f8R Nh6 h5 Ng8 f7 Nh6 Rg8 Ka5 f8R Na6 Qg4 Nb4 Bc4 Nc2 Bf4 Kb6 Rg7 Ne1 Nf3 g1R Qf5 Ra4 Bh2 Rg3 Nc3 b1R Nd4 b2 Nc6 Be7 Rff7 Bb7 c8B Re8 h8B Bg5 Rf1 Re7 Rf3 Qf8 Kd6 e5 Bb3 e4 d8B+ Rc7+ Re7 e3 Bg8 e2 Ke6 Nf7 h6 Ba6 h7 Bd3 Qf6 Bc2 Qf5 Bd1 Rd7 Qc5 Bf6 Rca7 Rc7 Ra3 Rd7 R7a4 Rd2 Qf8 Rc2 Qd8 Be5 Qc7 Bf6 Nd3 Bd7 e1B Be5 Bf2 Nd5+ Ka6 Ndb4+ Kb6 Rg6 Rb3 Bhf6 Ne1 h8B Re3 Bhg7 Nh8 Rh6 Rc1 Rh7 b1Q Bc8 Qb2 Rb1 Qc3 Rbb2 Bg1 Rg2 Qc5 Rbc2 Bf2 Bd7 Rb1 Rg1 Rea3 Ba1 Rb2 Be5 Re3 Bf6 Rh3 Rg4 Rg3 Bc8 Bh6 Rgg7 Bf4 Ba6 Qf8 Bf1 Bg5 Bh3 Qfc8+
5R1r/1QB1PK2/1Bq3n1/1N2N1r1/NBb2k1q/N1q3n1/R4B1q/2Nb1bN1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 g4 Bb4 h4 Kd7 hxg5 Ba3 f4 Bc5 g6 Bd6 g5 Ke7 Bh3 Ke8 Bf5 Be5 fxe5 exf5 Kf2 Ke7 Kf3 a5 Kf4 h5 d4 c5 b4 f6 e4 a4 b6 a3 b5 a2 d6+ Ke6 d7 h4 d5+ Ke7 d6+ Ke6 g7 h3 g6 h2 b7 c4 b6 c3 Bd2 c2 Bb4 Qe7 d8B Rh3 d7 Raa3 Bc7 Ra4 d8B Rg3 Qf3 Qd6 Na3 Na6 b8B Qe7 b7 Qf8 Ba7 Qf7 b8N Qe7 Bf2 Ra5 Nc6 Rc5 Na5 Rh3 Nb3 Rh8 Nc1 Rd5 Bcb6 Nc5 Bdc7 Qd8 Qg2 Ne7 g8N Bd7 g7 Ba4 Nh6 Ng6+ Kf3 f4 Kg4 f3 Kh5 f5 g8N f4 Nf6 Qe7 Nd7 Qd6 Kg5 Qc6 Nf7 Qd6 Rb1 a1Q Rb2 Qc6 Ra2 Qb2 Nd6 Qd4 Ndb5 Qd2 Nc3 Qe1 Bd4 f2 Be3 f1B Bf2 Bb3 Na4 Be2 Qf3 Bbc4 Qb3 f3 Qb2 Re8 Kh6 Rb8 Kg7 Bd1 Qb1 Rh8 Qb3 Ke7 e6 Rg5 e5 Qc3 Qb2 Qd6 Qb3 Ne4 Qb2 Ng3 Qb3 Bd3 Qd5 Bc4 Qb7 Ke8 e7 Qdd4 Nb8 Qh4 Nc6 Kd7 e8N Ke6 Nd6 Kd5 Ndb5 Ke4 Kf6 Kf4 Kg7 Qd3 e6+ Qd6 Bfc5 f2 e7 f1B Ne5 Qd3 Bf2 Qc3 Nb3 c1Q Kf6 Q1d2 Nc1 Bce2 Kf7 Qd7 Ngf3 Qdc6 Rg1 h1Q Rg2 Ne4 Ng1 Q1h2 Rg3 Bd3 Re3 B3e2 Rd3 Ng3 Rd8 Bd3 Rf8 Bc4+
r3Bk1N/2r1R1rq/PKNb1b2/2B4B/3B1R2/N5r1/1Brq4/B1N1n1Qb w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra4 f4 Qd6 fxg5 Kd8 h4 Ra8 h5 Nf6 g6 Ke8 g5 Qd8 g7 Ng8 Kf2 Nd7 Ke2 Ne5 Ke1 Ng6 hxg6 Qd7 Na3 Qd6 Nb1 Qd8 Ke2 c5 Kd3 e5 Kc4 h5 Kb5 e4 a4 h4 d4 b6 a5 c4 d6 h3 f6 b3 d5 e3 a6 c3 f7+ Kd7 Be2 b2 Bh5 e2 Ra4 e1B Rf4 h2 Ne2 c2 Na3 b1R+ Bb2 Bd2 Re1 h1Q Nc1 Be7 f8B Nf6 g8N Ke8 Nh6 Rg8 Nf7 Nh7 g7 Bb4 g6 Ng5 Nh8 Bb7 Re2 Qe4 Qg1 Bf6 Ba1 Rb3 Be7 Rf8 g8N Rf7 g7 Nf3 Bf8 Ne1 Ne7 Re3 g8B Rg3 Nc6 Qd7 Be7 Qe3 Bh7 Qd2 B7g6 Qc7 Bd8+ Kf8 d7 Bc5 d6 Rg7 Re7 Bb4 Be8 Bc5 Na5 Bh1 Nc6 Qb7 Bc7 Bb4 d8B Bc5 d7 Bd6 Nd3 c1R Bb2 Rc4 Nc1 Rc2 Bb8 Qc7 Ba7 Qb7 Ne5 Qe4 Nc6 Qh7 Bc7 Bb4 Bce5 Bd6 Nb4 Rc7 d8B Rc2 Bed4 Rc7 Ka4 b5+ Ka5 Rc2 Kb6 Rc7 Nc6 b4 Bc5 b3 Ba1 b2 Bd4 b1R+ Bab2 Rd7 Bc7 Ra1 Bcb8 Ra2 Ba1 Bb4 Bbe5 Bd6 Bdb2 Rc7 Bed4 Qe3 Kb5 Qd2 Bac5 Qe3 Kb6 Qd2 Bbc3 Rc2 Bcb2 Qdd3 Re6 Qe3 Re7 Qd2
N1Nk4/2r5/N1B5/B1qBqb1N/n4b2/1R2bN2/Bn2PK1n/qNbQR3 w - - 0 1 illegal: No possible last move, all moves rejected
1bn1k1B1/4B3/1Rn1R1bB/1b1B3b/2qB3R/1Qb1KB1P/2qNb2N/R5r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Bg4 Ra3 Be6 Ra1 Bc8 hxg5 a5 Kf2 h5 Qe1 h4 Qd1 h3 Ke1 h2 Nc3 Rh3 gxh3 Ra6 Nb1 Rh6 Qa4 Rh4 Qd1 Rh8 Kf2 c5 e4 f5 b4 f3 d4 c4 e5 a4 b6 a3 b7 f4 g6 c3 d6 a2 d5 c2 g7 Bd7 b5 Rh6 b6 Bc6 e6 Rg6 d7+ Ke7 d6+ Kf6 e7 Kf7 Nd2 Ba4 Be2 Qc7 d8R Be8 d7 Nc6 b8R Qc8 Bb2 c1Q b7 Qc4 Qb3 Rg4 Re1 a1B Bd4 Bc3 Bd1 Rg6 Re6 Qc7 Rdc8 Rg3 d8B Rg4 Be2 Rg3 Kf1 f2 Ngf3 Rg4 Rg1 h1B Nh2 Be4 Rh1 Bg6 Rg1 Qd5 Bf3 Rg3 Ke2 f1B+ Kf2 Bb5 Ra1 Qc4 Bd5 f3 Ke3 f2+ Bf3 Rg1 Bd5 Nf6 g8B+ Kg7 Bf3 f1B Bd5 Bef7 e8B Bd6 Be7 Be2 Rd8 Bgh5 Bf3 Bfg6 Bef7 Be5 Rd5 Ne4 Rc5 Qd5 Rc4 Nd6 Rca4 Nc8 Rb4 Ba6 Rb6 Qb5 Ra8 Qc5 b8B Bab5 R8a4 Qc4 Rb4 Qa7 Bbd6 Qa4 Bg5 Qa2 Bde7 Qc2 Bh6+ Kh8 Rf6 Bg3 B7d5 Bb8 Bf4 Kg7 Re6+ Ne5 Bh7 Kf7 Bh6 Ke8 Bg8 Qc7 Bdc5 Nc6 Rh4 Qa7 Bd4 Qaa2 Kf2 Qa4 Ke3 Qc4
1K1Q4/1BP2BN1/n2Nnrn1/N3kBr1/1B2B3/1qn2R2/1pBNRb1b/5n2 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 g4 g5 fxg5 b6 g6 Bb7 h3 Bf3 g5 Bg4 hxg4 Ra5 Bd2 Ra3 Bc1 Ra8 Kd2 e5 Kd3 Ke7 Kc4 d5+ Kb5 h5 a4 d4 c4 h4 a5 h3 g7 e4 c6 Kd6 c5+ Ke5 a6 h2 g6 e3 c7 d3 c8N b3 g5 b2 c6 e2 c7 e1B f6 d2 f7 Nc6 a7 Nb4 Ra2 Kf4 Bg2 Nc6 Ka6 b5 Kb7 b4 Nd6 b3 Be4 Qd7 Nf3 Bg3 Na3 b1N Nac4 Ne5 Na5 Rh6 Ba3 Nf6 g8B Bf2 g7 Nc3 g6 Ne8 Bh7 Qh3 g8B Ng7 Bb4 Na4 Rf1 Ne6 g7 h1N Bhf5 Ng6 Bh7 Ng3 g8B Rc8 a8B Nac5+ Ka7 Rb8 Rc2 Rb5 Bab7 b2 Kb8 Bg7 f8N Be5 Rg1 Nf1 Bf7 Qg3 Rc3 Qh3 Rg2 Qg3 Qc2 d1N Qd3 Qh3 Nd2 Qf3 Ra3 Nc3 Rh2 Qd1 Qd5 Qb3 Bc2 Bg3 Re2 Bd4 Bce4 Bdf2 Qd4 Bh2 Qh8 Ng7 Ne6+ Ke5 Qc8 Nh8 Qd8 Rf6 Bh3 Ng6 Bhf5 Nh5 Ng7 Nhf4 Ra1 Nfe6 Rae1 N5a4 Re3 Rd5 Rf3 Nac5 Bc2+ Kd4 Bfe4 Rg5 Ree3 Ke5 Re2 Nh4 Bhf5 Ng6 Qe7 Nf4 Qd7 Ng6 Qd8 Na6+
1Nn3NN/1N3N2/1BQ1pqBb/n1r2n2/B1qP2Rb/2N3n1/2KR1n1k/5B2 w - - 0 1 legal: proof: c4 b5 h4 g5 a4 gxh4 axb5 d5 cxd5 Nc6 d4 Qd6 e3 Qd8 d6 Nb8 d5 Ba6 Kd2 Bb7 Ke1 Bc8 g4 a5 f3 Ra6 g5 Bg4 fxg4 Rc6 Ke2 Rc4 Ke1 Rd4 exd4 Qd7 Bf4 Qc8 Bc1 Qd8 Kd2 Kd7 b4 f5 b6 h5 g6 c5 b5 h3 g7 f4 b7 h4 g5 f3 b6 a4 g6 f2 Rh2 a3 Qf3 a2 Ba3 c4 Kc2 c3 Ne2 Rh5 Nf4 Nc6 Bc5 Nh6 g8B Nf5 g7 Na7 Bh7 Nc8 g8B Bh6 Ng6 e6 Bf7 Qf6 Nh8 Rg5 Rg2 h2 Bhg6 h1N Rg4 h3 b8N+ Kd8 d7 h2 b7 Nhg3 Qg2 h1N Bb6+ Ke7 d8N Kd6 Nd7 Rh5 Bd3 f1Q b8N Nf2 Be8 Rg5 Bb5 Qc4 Nb7+ Ke7 Kc1 c2 Nc3 Rh5+ Kb2 c1B+ Kc2 Bcf4 Rd1 Bfg5 Rd2 Bh4 Ba6 Qb4 Bf1 a1N+ Kc1 Nb3+ Kc2 Qc4 Qh1 Qf8 Nf6 Na5 Ba4 Rg5 Ne8 Qf6 d6+ Kf8 d7 Kg8 Nc7 Kg7 d8N Rh5 Qc6 Rg5 Nd5 Rh5 Be8+ Rg5 Nhf7 Kg6 Ne7+ Kh5 Ng8 Ng7 Bd7 Rc5 Nh8 N7f5 Ndf7 Ngh1 Rg1 Nhg3 Be8 Kg4 Rg2 Kf4 Rg1 Nge4 Rg4+ Kf3 Rf4+ Kg3 Rg4+ Kh2 Ne5 Rb5 Bg6 Rc5 Nef7 Neg3
B2R2N1/r7/rQPR4/2r2qN1/1NBNbR2/n5p1/r2R1Nkn/2NKn2q w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 f5 exf5 b4 f6 b3 g3 Na6 axb3 Qc7 b4 Nb8 b5 Qd8 Bg5 e6 f4 Bd6 f5 Bf4 gxf4 h6 Qe2 hxg5 Qd2 Rh4 Qd1 Rh8 c4 Kf7 b4 a5 h4 d5 c6 a4 c5 e5 b6 d4 b5 e4 c7 g6 b7 a3 b6 e3 c6 g4 h5 e2 h6 g5 h7 a2 Nc3 g3 Rh6 g4 Qb1 d3 Ne4 g2 Nf2 Be6 c8B Na6 b8N g3 b7 Nc7 Na6 Bc4 b8R Qe8 Nb4 Nd5 Bb7 Ra5 Ba8 Bb3 Rd8 Qf8 Kd2 e1N Ne2 g1Q Nc1 Bc4 Kd1 d2 Qb3 Bb5 Bc4 Qh1 Rb1 a1R Rb2 Ra6 Qe3 Qe7 Qb6 Qe5 Rg6 Nh6 Ra2 Re8 h8N+ Kf8 f7 Ke7 f8R Nc7 Rgd6 Ng4 Rc2 R1a2 Nf7 Nh2 Nh6 Qe6 Rf6 Rh8 Rff8 Rh7 Rb2 Rf7 Rc2 Kf6 Ng8+ Kg7 f6+ Kg6 f5+ Kg5 Rb2 Kh4 Rc2 Rg7 f7 Rg5 f6 Rc5 Rfe8 Qh3 f8N Qf5 f7 Ba4 Ree6 Nb5 Rf6 Na3 Nh7 Bb3 f8N Ra7 Ne4 Kh3 Nhg5+ Kg2 Nfe6 Ba4 Nd4 Bb5 Bf7 Bd3 Nf2 Be4 Bc4 Ra6 Rh6 Ra7 Rh4 Ra6 Rf4 Ra7 Ke2 d1R Rb2 Rd3 Rd2 Rc3 Kd1 Rca5 Bd3 Rcc5 Bc4 R5a6
2NNnN1B/P1R1rn2/b3B3/1q1p4/BNRN4/B3Q2q/N6k/2Kq1nbq w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 b4 axb4 f3 Ra4 f4 Ra8 fxg5 b5 h4 Qc7 g4 Qb7 g6 Ra4 h5 Qc7 g5 Ra6 g7 Rg6 hxg6 Qd8 Kd2 e5 c4 Ke7 a4 d5 f6+ Ke6 c6 Kf5 f7 Kf4 a5 Kg3 a6 h5 a7 b3 c7 e4 c5 h4 c6 b4 Bb2 e3+ Kc1 h3 Nc3 h2 Qd3 Qf6 Ra4 Bg4 c8B Bh5 c7 Ne7 g8N Qe5 g7 Nd7 g6 Qf4 Na2 Qf5 Nf3 e2 Qe3 Nf6 Nh6 Qh3 g8N Nf5 g7 Rh7 Ne7 Nd6 g8N Nfe8 Nf6 e1N Bd7 Nc2 c8N Bg7 f8B Nf7 Bc3 Bg4 Nc6 b2+ Kd2 b1Q Nfd4+ Bf3 Bb5 b3 Be6 b2 Rc1 h1Q Rc4 Kh2 Ba3 Be2 Ba4 Bf8 Nd7 Bc5 Ncb4 Qa1 Ndb6 b1Q Nd7 Bb6 Rc7 Ba6 Nf8 Qb3 Bcb2 Qc4 Bc3 Qb5 Rc4 Nfd6 Rc7 Re7 Nf7 Qb1 Nd8 Nf7 Nf5 Qa1 Bh8 Bc5 Nd4 Bb6 Qg5 Ne3 R1c4 Qag1 Qh6 Nf1+ Kc1 Bc5 Ne2 Bf2 Nd4 Qg4 Qg5 Bg1 Qe3 Qd1+
1n1rqBqB/NN3k1r/5PrB/7R/p2pK3/2NrB2R/1bN2BB1/3n1Q2 w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 c5 b4 a5 a4 h5 axb5 Qc7 gxh5 Qc6 d4 cxd4 b6 Qc7 b5 Ba6 bxa6 Qd8 Ke2 e5 Kf3 d5 h4 g5 c4 d3 b7 d2 h6 d4 h7 a4 a7 g4+ Ke4 g3 f4 g2 h5 Ke7 f6+ Kf7 h6 Qa5 c5 Nc6 b8B Ke8 f7+ Ke7 f5 Nd8 c6 Bg7 f8B+ Kf6 c7 Qc3 c8N Qb4 Na3 Qb6 Rh5 Kf7 f6 Qe6 Nc2 Nc6 Ra3 Nge7 Ne2 g1R Bg2 Nf5 Qf1 d1R Be3 Rd3 Nc3 Qe8 Bf2 Ne3 Rb3 Nd1 Nd6+ Ke6 Nb7 Kf7 Bbd6 Rd8 a8N Nb8 Nc7 Qe6 N7b5 Qc4 Bf3 Rg6 Bg2 Qe6 Na7 Qg4+ Kd5 e4 Ke5 e3 Bc7 Qg3+ Ke4 e2 Bf4 e1Q+ B4e3 Rg8 h8B Rd7 h7 Bh6 Be7 Rgd8 Bg7 Bf4 h8B Bd6 Bf3 Ba3 Bg2 Bb2 Bh6 Rc7 Rh3 Qe2 Rb5 Qh5 Ra5 Qb5 Bd6 Qd7 Rah5 Qe8+ Be7 Qg4+ Bhf4 Qc8 Bh6 Qg8 Ba3 Qd7 Bc5 Qde8+ Be7 Ke6 Ba3 Rh7 Baf8 Kf7+
rQ4Rr/P1N5/2pN1Bb1/3r2n1/3q1N2/K1Rprk2/1NR1N1r1/3BqNR1 w - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 f5 exf5 a4 b3 axb3 c3 b2 d4 b5 d5 e6 Qb3 b4 Qd1 b3 d6 c6 Qc2 Na6 Qd1 Nc7 dxc7 Bb4 cxb4 Ra4 Qg4 Ra7 Qd1 Ra8 Kd2 Kf7 Kc3 Kf6 f4 d5 h4 g5 a4 g4 a5 g3 a6 e5 h6 g2 a7 e4 h5 e3 h7 e2 h6 e1Q+ Nd2 b1R b5 d4+ Kb4 d3 b6 b2 b7 Qh4 b8N Qd7 Be2 Qe8 Qb3 Qe4+ Ka3 Qh3 Nf1 Ne7 Bd1 Bd7 c8N Be8 Ne2 g1R Nd6 Qh2 Nc4 Qh4 Na6 Bh5 Qb8 Bg6 Nc7 Rd8 h8R Ng8 h7 Rg4 Rg1 Nh6 Rg8 Rd4 h8N Qe3 Nf7 Qe8 Nfd6 Ke7 f6+ Kd7 f7 Rd5 f8R Rg2 f5 Qd4 f6 Nf7 Bg5 Qe6 Bh4 Ng5 f7 Ke7 Re8+ Kf6 f8N Rc1 Re7 b1R Nb2 Ke5 Rh7 Qe8 Nfe6 Rc4 N6f4 Rbc1 Nf5 Ke4 Nd6+ Kf3 Re7 R1c2 Rc1 Rcc5 Rh7 Re5 Rhg7 Re3 Rf7 R2c4 Rc3 Rd5 Rf5 Ne4 Bd8 Ng5 Bf6 Rcc5 Ndb5 Rd8 Nd6 Rb5 Rfc5 Qee4 R5c4 Rd5 Rc2 Qe6 R4c3 Rc8 Rg7 Rh8 Rg8 Qee4 Nh3 Qh4 Nhf4 Qe1
8/2N2K2/pBp1qR2/qq1bQb2/N3NNn1/k1NBPqB1/3R3b/1B1N1r2 w - - 0 1 illegal: No possible last move, all moves rejected
K1RBb3/2r4p/bkB1q1RB/2b4R/p1Bbqq2/4R3/rB1B1NPN/3Q4 w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 b5 h4 gxh4 a4 e4 axb5 Bf5 c4 Bg4 d6 Nc6 c5 Ne5 fxe5 Bc8 d5 Be7 Bd2 Kf8 Bf4 Kg7 Bc1 Nf6 c6 Nd7 cxd7 Bf8 Kd2 Kh6 Ke1+ Kg6 Kf2 Kf5 Ke3 c5 b4 a5 e6 Ke5 e7 f5 e8B a4 b6 h3 b5 h2 b7 c4 b8R c3 b6 c2 b7 Bg7 Nf3+ Kf6 Kd4 e3 Kc5 e2 Kc6 e1Q Nbd2 f4 Ra3 Qe6 Bc4 Rf8 Re3 Qde7 d8R Ra7 Ne4+ Kf5 Ra8 Bd4 b8B Ba6 Bd2 c1B Rc8 Ba3 Nf2 Bac5 Bc7 Qe4 d7 Q7e6+ Bd6 Rb7 d8B Rb2 Bd7 Rf7 Bg5 Ra2 Bh6 Bb5+ Kb7 Kf6 Bb8 Ke7 Rc6 Kd8 d6 Re7 Ra6 Rg7 Ka8 Rf7 Ne5 f3 Neg4 Rg7 Be8 Rc7 d7 Qf4 Rg1 h1Q Nh2 Qfe4 Rge1 Qf1 Ra5 Rb7 Be5 Ba6 Rd6 Kc7 Rc3 Bb5 Ree3 Bc6 Rc2 Kb6 d8B+ Rc7+ Kb8 Qf7 Rg6 Qe6 Bef6 Bb5 Bc6 Ba6 Ka8 Bb5 Bb7 Bd7 Bc6 Be8 Nh1 f2 Bh8 Ba3 Rh5 Bac5 B8g7 Qe1 Rc1 f1B Nf2 Qe2 Rc2 Q2g4 Rcc3 Qgf4 Rc1 Ba1 Bb2 Bd3 B4d5 Bb5 Bc4 Ba6 Bb5 Qg8 Bd5+ Qge6 Ba3 Bad4 Bb2 Ba3 Rc5 Bb4 Bc4 Ba3 Bf6 Rd7 Rc8 Rc7 Bd8 Bb4 Bc6 Bbc5
KR3rq1/1B5B/N7/4bnB1/1N2N3/rpNB3P/p1Q1bpRn/1N2Nk1b w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 c4 d5 cxd5 e5 g4 exf4 gxh5 b4 a3 Qb6 a4 Qb5 axb5 Ba6 Ra2 Bb7 Ra1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 Kg4 c6 a5 b6 g5 h3+ Kg3 c7 Kf2 h6 f3 d6 f5+ Kd5 a4 e4 g4 h7 f4 b7 a3 d7 a2 d8N g3 e5 g2 e6 Bh6 e7 Bf8 e8B Nd7 Kc6 Bg7 b8N Ra5 d5 Ra4 d6 Ngf6 Ne2 g1Q Na6 Bf8 Ne6 Ra5 Ng5 Rf5 Qc2 Ke1 Bg6 f2 Ne4 f3 Bg5 Bh6 Rh2 Bf8 Rg2 Nd5 N2c3 N7f6 d7 Bg7 d8N Ng4 Bd3 Rhf8 h8N f1B Nhf7 f2 Ne5 Rf3 Bh7 Nde3 Kb6 Bh8 Ka7 Be2 Ndc6 Bb7 c8B Nf5 Kb8 Re3 Nf3+ Kf1 Ne1 Nh2 Ka7 Ba8 Bb7 Be5 Na3 Rh8 Rb1 Rf8 Rb3 Rg3 Nab1 Rg4 Ra3 b3 Ncb4 Rh4 Ra5 Rh6 Rb5 Rc6 Nc7 Rc5 Rb6 Ra5+ Nca6 Ra3 Bd5 Bc6 Rb8 Bd7 Bb7 Bc6 Ka8 Bd5 Rg4 Bc6 Nf6 Bh1 Nfe4 Qg2 Rg3 Qf3 Rg2 Qg3 Be7 Qg6 Bg5 Qg8
kn1bb2N/pq6/3K1pR1/1R1r1p2/1R2NB2/1B1nRB2/R2Q1P2/2b1BR1n w - - 0 1 legal: proof: g4 h5 gxh5 d5 c4 b5 cxd5 e6 a4 b4 a5 b3 a6 Nc6 Ra3 Rb8 Ra1 Rb7 axb7 Nd4 b8Q Nc6 Qbxb3 Nb8 Qbc2 Qd7 Qh7 Qd8 Qf5 exf5 e4 Kd7 Ke2 c5 Ke3 Kc7 Kf4 Kb7 Ke5 g5 b4 c4 h4 c3 d4 g4 h6 c2 d6 g3 h5 g2 d5 Ne7 b5 Qe8 h7 Na6 h6 Rg8 h8R Be6 b6 Qd7 h7 Nc5 Bc4 Bh6 Bf4 c1B Bb3 Ra8 Ne2 g1N Rg8 Bf8 h8B Nh3 Nd2 Na4 Ra2 Qe8 d7 Ng1 d8R Nb2 d6 Na4 d7 Bh6 Rb8+ Ka6 d8R Nd5 b7 Nh3 Rf1 Nc7 Rd3 Qc6 Rg6 Bd5 Re3 Ng1 Bf6 Qb5 Kd6 Bg5 e5 Bc6 e6 Be8 Bc3 Bd8 e7 f6 Ne4 Kb6 Qc2 Na6 Be1 Nb2 Qd1 Nd3 Qd2 Bc6 e8B Bd7 Bef7 Be8 Bd1 Qb1 Bfb3 Qb2 N2g3 Ne2 Nh5 Ng3 Bf3 Qb1 Ng5 Qb2 Nf7 Nh1 Nh8 Qb1 Ng3 Qb2 Rc8 Nb8 Rc5 Na6 Ne4 Rc8 Rc4 Rc5 Ba4 Qb4 Bb3 Rd5+ Ke6 Qb5 Rb4 Kc6 b8R Qb6 Rc8+ Kb7+ Rc6 Qb5 Rb6+ Ka8 Rb7 Nb8 Rb6 Re5+ Kd6 Rc5 Rb7 Qa6+ R7b6 Qb7 R6b5 Rd5+
NN3kr1/1P1b2bp/1nN1p2B/2b2p2/1R2RqR1/2K2NR1/1NB4p/3Q1Nr1 w - - 0 1 legal: proof: e4 d5 h4 Kd7 c4 g5 cxd5 gxh4 a4 b5 axb5 Nh6 d6 Ke6 d7 Ng8 Qf3 Ke5 Qd1 Kd6 f4 Ke6 d4 Bg7 d5+ Kf6 f5 e6 d6 Na6 Ra4 Nb4 Ra1 Nd5 exd5 Ke5 f6 Qe7 fxe7 Bf8 Qe2+ Kf5 Qd1 Kf6 Kd2 Kg7 d8R a5 e8N+ Kg6 b4 c5 g4 c4 g5 f6 d7 Kf7 g6+ Ke7 b6 a4 g7 h3 b7 a3 b8N a2 b5 h2 b6 Ba6 d6+ Kf7 b7 Ra7 Kc3 Be7 Nc7 Ra8 Nf3 Nh6 g8R Ra7 Bd3 Bf8 Rhg1 Bg7 Rg3 Ra8 Nbd2 Bb5 Rb1 Ng4 Nf1 Ne3 Bc2 a1B+ Rb2 Ra5 Na8 Ba4 Rc8 Rg5 Rc5 Rg4 Re5 Rg6 Re4 Nd5+ Kd2 Bc6 Rb4 c3+ Kd3 Rg4 Bh6 Nb6 Kd4 Bb2 Kd3 Ba3 d8N+ Kg6 Kd4 Bd7 Ndc6 Kf7 Na5 Rg5 Nc4 Rg6 Bb3 c2 Nb2 c1Q Bc2 Qf4 Kc3 Rg5 Rbc4 Bc5 Rb4 Bf8 Rg6 Bg7 Rg4 Rg8 Rg3 Bb5 d7 Kf8 d8N Bd7 Ndc6 Rg4 Rh3 Rg3 Rg4 Rg1 Rhg3 f5+
Q1r1b2r/1R5B/2q1qKbk/n7/nN5r/2NB3B/Br2PBNB/1R1r2bN w - - 0 1 illegal: No possible last move, all moves rejected
2N3q1/1n1Q1r1k/nn1N4/1B1P3K/2BRR3/RB2Rr2/1qb2B2/br1Rnn1R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 Kf7 b4 Kg6 e4 a5 g4 h5 d4 c5 b6 h4 d6 c4 d7 c3 b5 h3 b7 a4 e5 a3 b6 a2 e6 c2 e7 h2 e8R Kg7 g6 Be7 g5 Bc5 Ne2 Ra4 Nd2 Nh6 Re4 Rh7 Nc4 Na6 b8R Qg8 d8R Ra3+ Nc3 Nf7 b7 Nd6 Be3 c1Q Bf2 Qb2 Ra8 Bb6 b8R Nb7 Rb1 a1N Nd6 Nc2 Bb5 Kh8 Rd7 Rf7 g7+ Kh7 Rd8 Be6 Nc8 Bb3 Qd2 Bc7 Rbd1 Be5 Re3 Ba4 Ne4 Bb3 Ned6 Ne1+ Ke2 Bc2 g6+ Kh6 Qd3 Bf6 Re4 f3+ Ke3 Rb3 Kf4 Rc3 Kg3 f4+ Kg4 Rb3 Re3 Ra3 Qf5 Be5 Qd7 Rd3 Bg1 f2 Re4 f1N Bf2 f3 Kh4 Qh8 g8B Ne3 g7 Nd5 Re8 Nb6 Re3 Rf8 Bgc4 Kh7 Kh5 Qg8 Ra7 Bf6 R8e4 Rf7 Bb3 Nc7 Ra3 Na6 Na7 Be5 Rd8 Bf6 Nac8 Rc3 Bg1 f2 B3c4 f1N Bf2 Qf8 Re2 Rf3 R2e3 Be5 g8B+ Kg7 Bh7 Qg8 Bf5 Kh8 Bfe6 Kh7 Bb3 Qc1 Bec4 Qd2 d5 Ba1 Rde8 Qd4 Rf4 Qf6 R8e4 Qb2 Rg1 h1R+ Rh4 Rhh3 Rh1 Rhg3 Red4 Rg1 Rhe4 Ng2 Qg4 Nh2 R1d2 Rb1 Rdd1 Nf1 Qd7 Ne1
1bbRbb1n/BKBP3R/2R3q1/1Q4nB/R2NB1Nk/7r/1qR3R1/3n2rb w - - 0 1 illegal: No possible last move
Bq1b3B/1Qr2N2/1Bn2Nb1/Bk1N4/1qn1rq2/nR1N1r1N/N2P4/2K1nR2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 b4 h5 g4 a5 f6 e5 b6 c5 f5 c4 d6 Kc6 f7 c3 d7 h3 b5+ Kc5 b7 h4 b6 h2 g5 h3 f6 a4 g6 e4 g7 e3 Ra3 e2 Qb3 c2 Bg2 Qc7 d8N Rh7 Bb2 Qf4 Nc3 Nd7 b8N Ne5 b7 Ne7 g8N N7c6 Ne7 Nc4 Na2 Bf5 Nd5 Be7 f8N Bg6 f7 Rh4 Nh7 Rg4 Qf3 Kb5 f8B Ra6 Rd3 a3 Nf7 Bd8 Nd7 Ra8 b8B c1R+ Kf2 e1N Ke2 Ra4 Bc5 Rg3 Bh8 Rc2 Qe4 Rf3 Kd1 Rb4 Nhf6 Rc3 Nc1 a2 Nde5 a1N Bb6 Nac2 Na2 N2a3 B8c7 Rc2 Rb3 Rcc3 Ne2 Rc2 Rg1 h1Q Nd3 h2 Rf1 Qg1 Ba5 h1Q Bcb6 Qd4 Ng1 Qhh2 Nh3 Qb8 Qe7 Qhf4 Qb7 Qc5 Rc3 Ra4 Rb3+ Qb4 Bh1 Nd6 Bg2 Rc4 Bh1 Re4 Bg2 Ndc4 Kc1 Re7 Bh1 Rc7 Kd1 Nd4 Bc5+ Nb6 Qc8 Rg3 Ne7 Re3 Be4 Rf3 Ba8 Nc6 Bg1 Rd7 Kc1 Rc7 Rc3 Qbc4 Ned5 Qc5 Qb7 Re4 Bf2 Qb4 Rb3 Ka4 Be3 Nbc4 Beb6 Kb5
1B3N2/1r2n1K1/B1q4R/BRB1nB1b/1q3P1Q/bN1r1N2/k2r2bN/B2bn3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 d7 e6 g6 a3 b6 h4 b7 a2 g7 c3 f7 h3 d6 c2 Ba6 Kb3 Qh5 Rh7 Nd2+ Ka4 b4 Qh4 d8N Qe7 Nf1 Kb3 Be3 c1Q d7 Qc6 b5 Qb4 b6 Ne7 Kf6 e5+ Ne6 e4 Bc5 e3 d8B e2 g8B e1N Nf3 Kb2 Rc1 a1R Rb1+ Ka2 Qh4 Rg7 Rb3 Rd1 Bh7 Rd2 Bf5 Rg3 Bc7 Ra7 Be5 Bd7 Ba1 Be8 Rb1 Rd3 Rb3 Rg2 Rb1 Rgd2 Rb3 Qd5 Ned4 Nbc6 b8B Ne5 Bc7 Rb7 Rb1 Ba4 Bd8 Bd1 Nb3 Rd7 b7 Qc6+ Be6 Rc7 b8B Rcd7 Ba5 Rb7 Rg1 h1B Rg6 h2 Rh6 Bg2 Rb2+ Ka3 Rb1 h1B N1h2 Bh3 Rb2 Bg4 Rb1 Bg2 Rb2 Qe8 Bf5 Bh5 Rb1 Nc8 Rb2 Be7+ Kg7 Qc6 Rb1 Ka2 f8N Bd6+ Bd7 Ne7 Bf5 Qba4 Nbd4 Qc4 Rb5 Qc3 Nb3 Qb2 Bcb6 Ba3 Bg1 Qbc3 Bc5 Qb4
3rB1qN/2bB1R2/QB4rn/2K5/P2Rnqb1/nN3q2/N1NN1k2/1bB1qN2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 e5 d4 h5 f4 b5 a4 c5 g4 c4 d6 c3 d7 h4 f6 Kg6 f7 b3 d5 h3 d6 b2 f5+ Kg7 g6 Kf6 g5+ Kg7 Na3 b1N Qe2 h2 Bh3 e4 Kd4 c2 Nf3 e3 Rd1 h1B Kc5 b4 Nd2 b3 Qa6 e2 Nf1 e1Q Rd4 Qde7 d8N b2 Nc6 Q7e3 Nb4 Q3d2 Na2 Ne7 d7 Rg8 d8B Qd3 Bb6 Be4 Bg4 Qf3 f6+ Kh8 g7+ Kh7 Bh3 Kg6 Bd7 Kh5 g6 Kh4 Be8 Bg4 Bd7 Rh8 g8B Rh6 g7 Rg6 Bh7 Kh3 g8N Kg2 Be8 Bg7 f8N Kf2 f7 Nf5 Ne6 Be5 f8N Bc7 Nf6 Nh6 Bd7 Bd3 Bg8 Be4 Bf7 Bef5 Bfe8 Bd3 Bg5 c1Q+ Nc2 Na3 Bd2 b1Q Ne4+ Ke2 Bf4 Qb3 Ned2 Kf2 Bg5 Qee3 Rb1 Qce1 Rd1 Qef4 Rc1 Rg7 Ng6 Bdf5 Nh8 Rg6 Rd6 Bd3 Ned4 Qg8 N4b3 Bdf5 Rd1 Be4 Rf6 Bef5 Qc4 Be4 Rf7 Na6+ Kd4 Nc5 Qa6 Qh2 Bf4 Rd8 Bg5 Nb7 Bf4 Nd6 Kc5 Bef5 Be5 Bd3 Bb2 Qhf4 Bc1 Be4 Nb1 Bef5 Rd4 Be4 Nb1d2 Bd3 Nce3 Bb1 Nc2 Ne4+
6rB/B3P1rk/R3Q1R1/1NrN4/1N4nq/3K1BBb/1b1NN1N1/1rbq1n1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 f5 d4 Kf7 Kd2 g5 e4 Kg7 d6 c5 h6+ Kh7 e5 c4 d5 f3 e6 f4 h5 a4 b6 c3+ Kd3 c2 d7 g4 b5 f2 d6 a3 e7 a2 b7 g3 b6 g2 Ne2 g1N Bg2 f1Q Bf3 Qe1 Nd2 Nc6 b8N Qh4 b7 Qf6 Na6 Qb6 d8N Rb8 d7 Nd4 Nc7 Bg7 Nc6 Nh3 d8N Nb3 Na7 Qg1 Qe1 Qh4 Nd5 Bb2 Ndc6 Nf6 Nb5 Ng4 Ncb4 Rg8 Rh2 Be6 Rg2 Rbc8 b8B Rc5 Ba7 Bd7 Qf2 Qh1 Qe3 Qd1 Qe6 Bc8 Rb1 a1R Rg3 Ra3 Ra1 Ra6 Ra2 Rd6 Ra6 Rg7 Rg2 Rd8 Rg3 Rdg8 Rg1 Bf6 Bb2 c1B Be5 Bd7 Bd6 Bfb2 Rg3 Ne3 Rg6 Ng4 Bdb8 Kh8 h7 Bc8 Be4 f3 Bg3 f2 Bg2 f1R Bf3 Rf7 Rf6 Kg7 h8N Kh7 h6 Rfg7 Ng6 Rh1 Ngf4 Re1 Rg6 Rh1 Ke4 Nhf2+ Kf5 Rf1 Ng2 Nh1 Ke4 Rg1 Nf1 Nd2+ Kd3 Nc4+ Nd2 Nce3 Nbd4 Nf1 Nb5 Bd7 Qe3 Qa4 Bf4 Nfg3 Nbd4 Kh8 h7 Nf6 Ndc3 Bh3 Ne6 Ng4 Nb5 Rd1 Nec7 Nf1 Ncd5 Re1 Nb3 Bd2 Bg3 Rb1 Qe6 Bdc1 Nd2 Qd1 Rh6 Rf7 Rf6 Kg7 h8B+ Kh7 Rg6 Rfg7
3nBBq1/3b1nb1/3R4/2NK1RnR/rQ1n2B1/B2b2P1/BNk3n1/1RBn2r1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g6 a5 g7 c5 g3 h5 d6 f5+ Kd5 f3 e4 h4 d7 f4 b6 f2 e5 f3 b7 c4 e6 c3 e7 c2 e8B Kb3 Bh3 f1B Qe1 a4 Nc3 a3 Bg4 f2 Rb1 h3 Nf3 a2 Nd1 a1N Ng5 h2 Ne4 Nc6 b8B Nh6 g8B Ra4 Bd6 Bd3 Ba3 f1N Qd2 Bg7 Nc5+ Ka2 b4 Nf7 b5 Nb3 b6 Ng5 b7 Ne3+ Kd6 Rh4 b8R Ng2 d5 Nbd4 Nb2 Rh8 Rf1 h1N Qb4 Nf2 Rb5 Nd1 Rf5 Rh1 Bgf7 Rg1 Bg8 Qb6 d8B Bd7 Be7 Qd8 Bf8 Qa8 Kc7 Nd8 d6+ Ngf7 Kb6 Nf3 Rh5 Ng5 Ra5 Be6 d7 Qc8 Na6 Qb8+ Kc5 Bef5 Kd5 Qc8 Bf4 c1N Nc5 Ne2 Bc1 Nd4 Rb5 Nb7 d8R Bd7 Rb6 Qb8 Rf6 Qa8 Rf5 Qb8 Rc8 Nbd8 Rc6 Qc8 Rd6 Qb8 Qa5 Qc8 Ne4 Kb3 Nc5+ Kc2 Qb4 Qa8+ Nb7 Qc8 Be7 Nh4 Nc5 Ne5 Bg6 N8c6 B8f7 Qh8 Bf8 Ng2 Bg8 Bb5 Be8 Nd8 Be6 Qg8 B6f7 Ngf3 Ke4 Bf1 Bc4 Nef7 Kd5 N3g5 Ba2 Bd3
BNbK2B1/1N3r2/1n1b3Q/1n2Bqnr/2N3B1/1n1N1bP1/3R3B/1k2qbBR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 c5 d4 a5 d6 h5 b6 f5 b5 f3 e4+ Kb4 b7 h4 d5 a4 b6 a3 d7 h3 Ke6 a2 d6 c4 e5 c3 g6 f4 g7 c2 Qd2+ Kb3 Bb2 c1N Ne2 f2 Na3 f3 Nf4 h2 Nc4 Nc6 b8B Qc7 b7 Ra7 Be2 f1B Nd3 f2 Qh6 Kc2 Bg4 Nb3 Rd1 a1Q Rd2+ Kb1 Bc3 Nge7 g8B Qa2 Kf7 Qb2 Ke8 Qa5 d8B Ncd4 d7 Nd5 e6 Qc2 e7 Nb5 Bce5 Nb6 Bdc7 Qc1 Kd8 Qe1 e8B Bd6 Bef7 Be2 Bd5 f1B Bd4 Bf3 Bg1 N5d4 Bc6 Qf5 Be4 Nb5 Bd5 Bf8 Be5 Bd6 Bc7 Rh7 b8N Rf7 Ba8 Ra4 Ne3 Rd4 Nc4 Rd5 Ke8 Rc5 d8N Rd5 Nb7 Rc5 Be3 Rd5 Kd8 Rc5 Rg1 h1N Bh2 Ng3 Rh1 Rd5 Beg1 Ne4 g3 Ng5 Nd7 Bc5 Be5 Bd6 Nb8 Rd4 Bh3 Rh4 Bg4 Rh5
n1NB1Rrq/b3n3/N2K2B1/q4rn1/b1bBBkBp/2P2N2/2N5/RQ2r2B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 g4 h5 b4 d6 g6 d3 g7 d2 c3 a4 b6 a3 b7 f6 g5 h4 g6 a2 b5 Nd7 b8B Ra7 b6 Rb7 Bg2 Be7 Ba7 Nh6 g8B+ Nf7 g7 Qe8 Bh7 Rg8 Na3 f5+ Kd4 d5 e4 f4 Nc2 Bd8 Nf3 Ng5 Rf1 Bf6 Qe1 d1N Bh1 Ne3 Ba3 Rc7 b7 Rc5 b8N Ba6 Qb1 Bc4 Na6 Nb6 Rf2 Ra5 Be7 Na8 Bd8 Qh5 Bg6 Qh8 Rf1 Be7 Bab6 Bd6 Bh5 Bb8 Bg4+ Kf7 e6+ Kg6 e5 Ba7 e7 Rc5 e6 Nf5+ Ke5 Ra5 e8N d4+ Bc5 d3 e7 d2 Rf2 d1B Nd6 Kh6 e8B Ne7 Ncd4 Ba4 Nc8 Rb5 Kd6 Ra5 Ne1 f3 Bg6 Rb5 Rf1 f2 Ndf3 Ra5 Bd4 Rf5 Rg1 f1R Nc2 Re1 Rf1 Re8 g8B Ref8 Qb3 Re8 Bd5 Rg8 Rc1 a1Q Be4 Qa2 Ra1 Qa3+ Nc5 Qb4 Qb1 Qa5 Na6 Ne6 Nh2 Kg5 Nf3+ Kf4 Nd2+ Kg3 Rf4 Ng5 Nf3 Re5 Rf6 Rf5 Rf8 Kf4
N2rnbk1/qqRb1n2/4B3/2r5/1K1PR1B1/2np1B1Q/N2Nb2B/1N1qNN2 w - - 0 1 illegal: No proof kernel
R1bB1bqN/2nRn2B/N5r1/b1p4K/3NN3/Q4Br1/qPq3B1/B1k3rB w - - 0 1 illegal: Other
1rnNr2k/PnR2b1b/1RQ2b1n/N1R5/1BN2Kq1/5RN1/2R4p/1r3BRq w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 Kg7 a4 h5 d4 e5 g4 c5 d6 b5 f6+ Kh7 d7 c4 d5 c3 f7 b3 g6+ Kg7 d6 b2 a5 h4 a6 b4 g5 e4+ Kf4 h3 a7 e3 Rh2 e2 Qa4 e1Q Bd2 b3 Na3 b1B Nc4 b2 Qc6 c2 Ra5 c1N Rc5 Be7 f8R Be4 Ne2 b1R Ng3 Qc7 d8N Rb2 Nb7 Rb1 Nba5 Qb6 d7 Rb5 d8N Nb3 Bb4 Nh6 Rf6 Be6 f3 Re8 Rc2 Kg8 g7 h2 Rf7 Bf6 Rc7 Kh7 g8R+ Bf7 Rg7+ Kh8 g6 Nd7 Rh7+ Kg8 g7 Rb8 Rb7 Qa6 Rb6 Qd1 Ke3 Qc8 f4 Qd5 f5 Bd3+ Kf4 Qh1 Rb7 Nb6 Rc7 Bc3 f6 Qe6 Rb7 Nc8 Rb6 Bdg6 Rb7 Be4 Rb6 Qg4+ Ke3 Bfg6 Nab7 Ra5 Nh5 Ra2 Rg5 Qd1 Nba5 Nc5 Rg1 Qg4 Ng3 Nf7 Rh5 Nh6 f7+ Kh7 f8R Ra1 g8R Rb1 Rf3 Bf6 Rg7+ Kh8 Rc7 Nb7 Rhb5 Bf7 Rc5 Qh3 Kf4 Bh7 Ra6 Qe6 Rb6 Qg4#
nnQ5/B3R1B1/4b3/r2N1Kp1/3bN1RP/1qN1BB2/1NkNN1nb/2rn1r2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kb4 h4 a5 f4 e5 d6 c5 f6 g5 f7 a4 d7 a3 f5 a2 f6 c4 b6 g3 d5 c3 d6 c2 b7 Kb3 Kf5 e4 Be2 g2 Nc3 e3 Bf3 e2 Be3 e1N Nge2 g1B Qc1 Bh6 f8B Bf2 f7 Rh7 Bg7 Qe7 f8N Ra6 Rg1 Qd8 Ne6 Ng2 N6d4+ Kb4 Nb3 Qe7 Nd2 Nf4 Rg4 Nc6 b8B Nf6 Bba7 Bg1 Rb1 a1N b3 Bb7 d8N Nd5 d7 Bc8 Nf7 Nb6 Ne5 Nb8 Nec4 Na8 Nb2 Ka3 b4 Ng2 b5 Qb4 b6 Qb3 b7 Ra5+ Nd5 Bh2 Nc3 Na6 b8N Rh8 Nc6 Nb8 Nd4 Rf8+ Bf6 Bg7 Nde2 Bh8 Qd1 c1R Qc2 Rd8 Bg7 Rf8+ Ke4 Rf7 d8N Be6 Nb7 Rf6 Nc5 Rf5 Qd3 Nc2 Qa6 Rf7 Qc8 Rf5 Bf2 Nce3 Bg1 Nd1 Be3 Rf4+ Ke5 Qb4 N5e4 Qa4 Ndc4+ Kb3 Ncd2+ Kc2 Ra1 Qb3 Ra4 Rb1 Rb4 Rc1 Rb7 Bf5 Kf6 Be6+ Kg6 Rf7 Re7 Rf4 Bf8 Bd4 Bg7 Ne1 Bg2 Rf1 Bf3 Bf7+ Kf5 Ng2 Bf8 Bg8 Bg7 Be6+
B1n1R1qK/Rb2rq2/4r1rB/1b4B1/RNrP3b/3R1p1Q/1B6/1k1N1RnR w - - 0 1 illegal: No possible last move, all moves rejected
K1qN2kB/Qn1b3q/1p1R2rB/1rn5/1N4N1/N2NRN1R/1P1R1b1b/b3q3 w - - 0 1 illegal: No proof kernel
B4q2/2R1qPKR/1k6/q2Qr2R/1BB1bbB1/2N2p1R/rnn2bB1/B1q4N w - - 0 1 illegal: No proof kernel
Q5Bq/1n2P2N/2R2BR1/r5Nk/1np1BR2/nR3qBb/2Br1b1K/bb5B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 c5 Kg3 f5 d4 Kf7 b4 Kg6 e4 h5 d5 a5 d6 a4 d7 c3 e6 a3 e7 c4 e8B+ Kg7 e5 f4+ Kh2 f3 g4 a2 e6 c2 e7 h4 g6 h3 g5 f2 b6 Nf6 b5 Rh7 b7 Rh6 b6 Rh4 Bb2 c1B Nd2 Ra3 Qa4 Rh7 Bg2 f1Q Ne4 Rc3 Nf3 Rh6 Rg1 Bd2 Qa8 Nc6 b8R Rh8 b7 Be1 Bh1 Nd5 Nf6 Rh5 Nh7 Bf2 Rc1 Qd3 Rcf1 a1N Bf7 Ndb4 Bd5 Qe2 Be4 Nac2 Rg2 Qe8 d8R Na3 Rd6 Na5 Rc6 Qd8 Rg3 Qd4 Rg4 Rc2 Rfg1 Rd2 Rf4 Kh8 Rg3 Bg7 Ba1 Bf6 g7+ Kg8 Bc2 Kf7 g8B+ Kg7 g6 Kh6 Nfg5 Qf3 g7 Bf5 Bd1 Bb1 Bc2 Qd8 Bf7 Qh8 Bfg6 Bb2 Rg8 Bc3 b8B Nb7 Bge4+ Bf6 Ne6 Ra5 Neg5 Kh5 Bb2 Qg4 Rb3 Qf3 Rf8 Bc3 g8B Be5 Rff6 Bed4 Bc1 Ba1 Rg6 Bh4+ Kg1 Bb2 Rff6 Qe2 Bhg2 Ba1 Bb2 h2+ Kh1 Bf2 Bg3 Qg4 Rf4 Qf3 Bf6 Qe2 Bf1 Qg4 Kg2 h1B+ Kh2 Bg2 Be2 Bf1 B2f3 Bh3 Bh1 Qf3
k1b3K1/B1bRp1qB/R2BN3/r1nq2b1/n1R2r1Q/r3b3/N1BR1B1P/3B4 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 a5 Kd3 d5 Kd4 Kd7 Ke5 Kc7 f4 Kb7 c4 g5 b4 a4 b6 d4 c6+ Ka6 c7 Kb7 f6 a3 c5 a2 f5 d3 b5 d2 f7 g3 f6 g4 Nh3 g2 Ng5 g1R Qa4 d1Q Nc3 g3 Be3 g2 Bd3 Qe2 Bh7 Qd7 Qh4 Rc1 Rd1 g1B Ne6 Qf1 Bf2 Qdd3 Rd2 Bg7 f8R Qd1 Rd8 Rb1 Rd7 Bh6 f7 Nf6 f8R Ra4 c6+ Ka8 Rg8 Ra5 Rg4 Be3 b7+ Ka7 Rc4 Na6 b8B+ Ka8 Ba7 Ra3 b6 Ne4 Kf5 Q1f1 Kg6 Rb4 Kf7 Nec5 Kg7 Qg2+ Kf7 Bb7 c8B Qdd5 c7 Bg5 Bc2 Rh5 Kg8 Na4 Bh7 Bc6 Bc2 N6c5 Ba6 Rb2 c8B Rb4 Bb5 Bb7 Bc6 Qd6 B6e4 Qd5 Bh7 Ba6 Bg3 B1e3 Bf2 Bb7 Bd1 Bc6 Ba6 Bb7 Bb5 Bc8 Bdc2 Nb2 Bba4 Qg3 Bab3 Nba4 Bd1 Qg4 Bbc2 Qg1 Rc1 a1B Na2 Be5 Ra1 Rd3 Bb8 Qg4 Bd6 Ra3 b7+ Ka7 b8B+ Ka8 Rc3 Rf4 Rc4 Qg1 Ba7 Qgg2 Rb1 Qg3 Rb6 Qg1 Bdb8 Bc7 Ra6 Bf6+ Qg4 Nb7 Bhd3 Bd6 Rdc7 Qe4 Kf8 Ra5 Qh4 Nbc5 Rd7 Qd5 Bh7 Qgg5 Bc7 Qh6+ Kg8 Bg5 Bd8 Bb8 Bc7 Qf6 Be5 Bc7 Bd6 Qg7+
1B2RRrK/1P1q1b1N/4RR1b/r1r1B2R/2n4B/1nR2B1k/r5p1/1n2QN1q w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 Kh4 f4 g5 b4 a5 d4 c5 b6 e6 d6 g3 b5 g2 f6 g4 f7 c4 d7 g3 b7 c3 b6 a4 f5 c2 f6 a3 d5 a2 d6 Be7 f8R Nh6 f7 Qc7 d8R Bg5 Nf3+ Kg4 h4 g1Q h5 g2 Rde8 Qd8 d7 Rg8 Rh3 Ra3 Nbd2 Qh1 Bb2 c1R Be2 Na6 b8B Nf5 h6 Nc5 h7 Nb3 h8R Nd6 b7 Bh6 Nf1 Ra4 Rb1 a1R Qe1 R4a2 Bc3 Qe7 d8B Qd7 Kf6 Nc4 Bce5 Ra5 Rh5 R1a2 Re7 Rcc2 Rc1 Rc3 Rfe8 Rcc2 Rf5 Kh3 f8R Rc3 Kf7 Rcc2 Rf6 Rc3 Bg3 e5 Bf4 e4 Bfe5 e3 Bd1 e2 Ng5+ Kg4 Nh7 Kh3 Rc2 Na3 Rc1 Rcc5 Rc4 Nb1 Rc3+ Qd3 Ree6 Bd7 Qf2 e1N Bf3 Nc2 Qe1 Ne3 Be7 Nc4 Bd8 Rg3 Be7 Ba4 Bd8 Qd7+ Be7 Bg5 Kg8 Bh6+ Ng5+ Kh4 R6f7 Qd1 Rc8 Be8 Rf5 Bg6 Rce8 Qd7 Rh7 Bf7+ Kh8 Bg8 Rhf7 N3d2 Nh7+ Kh3 Bh4 Nb3 R7f6 Bf7 Rh5 Rg8+
1n1K3q/p2N1r2/n1b1R3/BB1PR1n1/1nQ1RR1B/kq4qR/5b2/BR1r1N2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d6 Kd7 Ke2 c5 Kf3 h5 Kf4 c4 Kg5 e5+ f6 h3 d4 c3 g4 c2 f4 e4 b4 e3 b6 Kc6 d7 h2 b5+ Kd6 f5 h4 d5 Kc5 b7 Kb4 b6 e2 Bd2+ Kb3 Ra6 e1Q Ba5 h3 Qc1 Qc3 Nf3 Bg7 Nbd2+ Ka4 Ne5 Ne7 f7 Nbc6 b8R Rh4 f8B Qb4 b7 Qc3 f6 Qc7 d8B Be6 f7 Bd7 Rb6 Bh6+ Kf6 Be3 g5 Rd4 g6 Bf2 g7 Qb2 g8R Ka3 Ba6 Rd3 Nf1 Rd1 Qf4 c1N Bg7 Nd3 f8R Nc5 Qc4 Qa2 Rb1 Nb4 Bb5 Nca6 Bh8 Be8 Rg4 Nec6 Re4 Qb3 Be7 Bd7 Rbe8 Rc8 b8R Qd6+ Kf7 Rc7 Rb7 Ncb8 Rb6 Rb7 Bg5 Qc7 Rg6 Bc6+ Ke6 Qg7 Rff4 Rf7 Nd7 Qgc3 Bg7 Qf3 Ba1 Qg3 Rg1 h1Q Be7 Qhg2 Rh1 h2 Bg5 Qgc3 Bh4 Qh8 Kd6 Qg4 R8e5 Qgg3 Rge6 Bd4 Rg1 h1N Rg2 Bb6 Rh2 Nf2 Rh1 Nh3 Rh2 Rf6 Ke7 Bf2 Rh1 Ng5 Rh3 Qh6 Ke8 Rf7 Kd8 Qh8+
1BRbnR2/Q2R3B/1np5/1B1n4/K5nr/b1P1N2B/1k1BRrN1/n1n1Bb2 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 fxg4 h4 g3 Kd2 g4 Ke1 Qg5 hxg5 Kd8 Be3 Ke7 Bc1 Ke8 Kd2 Kf7 Kc3 Ke6 Kb3 a5 f4 h5 e4 d5 c3 g2 f5+ Kd7 g6 d4 g7 g3 b6 Kc6 b7 Kc5 e6 h4 e7 d3 e8R h3 f6 d2 f7 h2 e5 Bh3 e6 Be7 f8R Nf6 g8B Bd8 e7 Rh4 Ra2 Nbd7 b8B Nb6 Ne2 g1B Bh7 g2 Nf4 a4+ Ka3 Be3 b3 g1N Ng2 Ne2 b4+ Kc4 b5 Bg1 Qe1 d1N Qf2 Ra5 Bd2 Ne3 Rb2 Ned5 Qe3 Nc8 Qa7 Ncb6 Be1 Bd4 Rg1 h1N Nd2+ Kc5 Ra2 Nc1 Nc4 Nf2 Nce3 N2g4 Re2 c6 Bf4 Be5 Bg5 Bd6 Rh1 B8c7 Rc8 Bd8 e8B Ra6 Bd7 Ne8 Nc2 B6e7 Bgd2 Bd6 Nce3 Ra5 Kb2 a3+ Kc2 a2 Be6 Nd3 Kb3 Nc1+ Kb2 a1N Ref2 B8e7 Rh2 Bb8 Nf4 Ra6 Rhg2 Ngf6 Rg7 Bd8 Rd7 Bg2 Bh3 Ncb3 Bc1 Bd6 Bc4 Bf1 Nfg2 Ra4 Bcd3 Rab4 Ka3 Rbf4 Bcd2 Nc1 Re2 Ng4 Qc7 Na8 b6 Rf2 b7 B6e7 Ka4 Nab6+ Ka5 Bd6 b8B B6e7 Bb5 Bd6 Qa7 B6e7 Nd1 Bd6 Ba4 Kc4 Bb5+ Kb3 Nde3 Bc5 Rh8 Kb2 Rf8 Nc4+ Ka4 Bce7 Qa8 Ba3 Qa7 Ncb6+
B4n2/Bb5B/1pR2r1N/N2Kn1rk/1Qq2b2/1RR1r1n1/B3pB1P/b3BR2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 e5 Ke4 g5 c4 b3 a4 g4 f4 d6 f6 g3 a5 b2 c6 g2 h6 Kg6 a6 Qe8 f7 Ne7 f5+ Kf6 c7 Nd7 c5 Rb8 h7 Ng8 c6 Qd8 a7 Kg7 a8B Kf6 Bd2 Ne7 Qa4 Ng6 Be1 Kg5 f6 Bg7 f8B Kh5 f7 Qf6 Bd3 Rg8 Nd2 b1R h8B Rb3 Kd5 e4 Ra3 e3 Nc4 e2 Na5 Nge5 Nf3 g1B Qb4 Be3 Ng5 Bf4 Bh7 Re3 Rf1 b6 Rb3 Bb7 c8B Qg6 Be7 Nf8 Be6 Qb1 Bd8 Qa2 Bc7 Rc8 Bb8 Qa4 Kd4 d5 c7 Qb5 Bf2 Qa6 Ba7 Rd8 c8R Rd6 Rc6 Bf6 Nf3 Rg5 Nh4 Bg7 Nf5 Bf6 Rd3 Bg7 Nh6 Bf6 Kc3 d4+ Kb3 Bg7 Rdc3 d3 Bc4 d2 Be1 Nfg6 f8R d1N Rd8 Rf6 Rdd3 Nf2 Bf7 Bf8 Bg7 Bc5 Bf8 Bd4 Bc5 Ne4 Bd5 Rf3 Bc4 Ng3 Bd5 Bde3 Bd4 Bc1 Bdf2 Bb2 Bc4 Nf8 Bcg8 Re3 Bc4 Ng4 Bcg8 Rb5 Kc4 Ne5+ Kd4 Ba1 Ba2 Neg6 Kc4 Rg5+ Kd4 Ne5 Kd5 Nf5 Rb3 Ng3 Rdc3 Qc4+
2Brn3/p1RKR1RR/b1R1pP1B/1q4B1/n2Nr3/k2B1r2/qn2R2N/4b2Q w - - 0 1 illegal: No possible last move
4Q1nK/Rn3Rn1/B3R1Nn/b2p1b1k/nBN1N3/2R1NP1q/2r3p1/Rr3R2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 g5 Ke4 d5+ Ke5 a5 h4 e6 b4 d3 c4 g4 f6 d2 c5 g3 b6 g2 c6 a4 b7 a3 c7 a2 f3 Ra7 b5 Nh6 b6 Bg7 Qe1 d1N Na3 Ng8 h6 Kg6 h5+ Kf7 h7 Ra6 h6 Kg6 Nc4 Qd7 Ne3 Qb5 Bd2 Ra5 Nh3 Na6 b8R Nc3 b7 Na4 Bb4 Kh5 Ra8 N6c5 b8R Nb7 Ra7 Qd7 Ba6 Rc5 Rf1 Rc2 Ng5 Bf8 f7 Bc5 f8R Bb6 Rba8 Ba5 Rc1 a1N Ne4 Nb3 Rf7 Nd4 Ra1 Nf5 Rb8 Nd8 Rb6 Nb7 Rc6 Ng7 Rc3 Qd8 Qe2 Qh4 Qe1 Bd7 c8N Qh3 Nb6 Ne7 Kf6 e5 Nc8 Bf5 Nb6 Re8 h8N Rb8 Nf2 e4 h7 Be6 Ng6 Bf5 Nbc4 Ng8+ Ke5 Kh6 h8R+ Kg5 Ned1 e3 Rh6 e2 Nde3 Bd3 Ne7 Bf5 Re6 Kh4 Ng6+ Kh5 Qd2 e1N Qe2 Rf8 Ne4 Nd3+ Kd4 Nf2 Ke5 Rb8 Qe1 Nh6 Kf6 Nfg4+ Ke7 Ne8 Kf8 Ng8 Qe2 N4h6 Qe1 Ned6+ Kg7 Ne8+ Kh8 Ng7 Qg3 Rd8 Qb8 Rd6 Qe8 Rb6 Bd6 Rbb2 Bb4 Rb1
1r1Rn1R1/K2Bkb2/1pB1NR2/B4nn1/1q4pn/NRBR1P1R/1Qnbr3/8 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 g5 Kd3 c5 Kc4 e5 Kb5 g4 h4 b3 d4 b6 a4 b2 d6 c4 a5 c3 a6 e4 f3 e3 h6 c2 d5 e2 a7 e1N h7 Nd7 h5 Qe7 h6 Qe6 f6 Bb7 f7+ Kd8 Ra3 Nc5 d7 Ng2 Nh3 Nf6 Ng5 Qe7 Rh3 Ne6 Qd4 Rb8 a8B Ne3 Rb3 Nf5 Bd2 c1N Na3 b1N Qb2 Ne4 Ba5 Bc6+ Ka6 Ne2 Ka7 N2f4 Bb5 Rg8 h8R Ng2 h7 Bh6 Ba4 Qb4 f8R+ Ke7 d8R Ngh4 Rf6 Rf8 Rg8 Ned6 h8B Be8 Bd7 Bf7 Bac6 Re8 Bg7 Nf8 Ne6 Nh7 Rg6 Bc1 Bc3 Ng5 Rf6 Bd2 Bc8 Nh7 Nf4 Ng6 Nb5 Rf8 Rd7+ Ke8 Na3 Ng5 Nb5 Nb7 d6 Ngh4 Be5 Na3 Bc3 Nc2 Na3 Bg6 Rh7+ Kd8 d7 Re8 Re7 Nbd6 Re3 Bf7 Rd3 Kc7 d8R Re2 B8d7 Ne8 Be5+ Qd6 Bd4 Qb4 Ne6+ Kd6 Bc3+ Ke7
BqN1K3/8/pRbN2nB/1bk2Nb1/2nNP2B/3QpNrN/r1b4B/1b4R1 w - - 0 1 illegal: No possible last move, all moves rejected
1nN1n3/K2R2NB/q4RNN/4Q1RP/1rk3N1/p1prn3/Rrb2B1N/r1b5 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 c5 f4 e5 h4 a5 d4 g5 b4 a4 f6 a3 h5 c4 b6 e4 d6 Ke6 b7 Kd5 f5 c3 f7 g3 d7 g2 f6 g4 b5 g3 b6 Rh6 Bd3 Na6 b8N Rh7 b7 Bg7 f8N Qe8 d8N Be6 f7 Nb4 Nbd7 Nf6 b8R Ra6 Nh3 g1R Ng6 g2 f8R Re1+ Qe2 g1R Nf2 Rg2 Rb7 Bh8 Ra2 Ra7 Nf7 Rg5 Nd2 Rg4 Nb6+ Kc6 d5+ Kc5 d6 Nc6 d7 Bg7 d8N Nb8 Nf3 Qc6 Nh6 Bf5 Nh2 Ne8 Nc8 Qa6 Rd7 Rb7 Rf6 Rb2 Rg1 Rf1 Bd2 Ra1 Ne6+ Kb4 Kd4 e3+ Be4 Rh4 Qe1 e2 Nfg4 Rh3 Qg3 e1N Be3 Ng2 Bf2 Ne3 Qe5 Kb3 Bb1 Bc2 Rg2 Bf8 Ng7 Be7 Rg3 Bd8 Kc5 Rh8 Rc6 Bg5 Rf6 Rf8 Rgf3 Rf7 R3f5 Bf4 Rg5 Rf3 Rd8 Rb7 Rd7 Rb4 Nh8 Bd1 Bh7 Bc2 Ng6 Nd1 Qc7 Rd3 Qa5 Bc1 Qb5 Qa4 Kb6 Ne3 Kb7 Qa8+ Kb6 Qc6+ Ka7 Qe6 Qa5 Kc4 Qe5 Qa6+
b4N1n/1K2B1B1/1B2br1R/p5p1/Bb3R1b/R3B3/rPrB1R2/qkN1Qn2 w - - 0 1 illegal: No possible last move
Brq2R1N/NP5p/2b2Brk/1Rr1bQR1/1p3r2/1N5n/2K1nRR1/2Nn1R2 w - - 0 1 illegal: No proof kernel
b3r1N1/5qRB/2R5/R2b3Q/1KR2pn1/PnrRNB2/b2bRp2/2B2Bkq w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 b4 Bg7 bxa5 Bf8 e4 Ke7 g4 Kd6 d4 b5 Kd2 h5 Kc3 f5 g6 c5 e5+ Ke7 a6 f3 g7 f2 d6+ Ke6 g5 Kd5 e6 Ke4 g6 c4 d7 f4 e7 h4 e8R+ Be7 d5 h3 d6 h2 a7 Rh5 Ne2 Kf3 Kb4 c3 Na3 c2 Nc4 Bb7 Ne3 Nf6 g8B Rh3 g7 Bd5 Bh7 Qc7 d8R Nbd7 g8R Nc5 d7 Ng4 Rg7 Rb8 Rg1 h1B a8B Bg2 Rg6 Nb3+ Rd6 Qa7 Rc8 Bd8 Rc4 Ba5+ Ka3 Qc7 d8R Qf7 Rdc6 Bd2 Nc3+ Kg3 Ne4+ Kh2 Nf6 b4+ Ka4 Bge4 Re5 Bh1 Rdd6 Re8 Ng8 Rf3 Rg3 Bg2 Rg6 Kg1 Rh3 Rg3 Rg7 Bge4 a3 Bg2 Ra2 Rf3 Nf5 Rc3 Rd3 Bgf3 Ne3 Bfe4 Bb2 c1Q Qf3 Qd1 Qh3 Qf3 Qh5 Qh1 Bb7 Nc1 Ba8 b3 Kb4 Bf3 Re7 Bfe4 Ra7 Bf3 Ra5 Bfe4 Ba1 b2 Bb7 b1B Bb2 Nb3 Bc1 Be1 Re2 Bd2 Bc8 Ba2 Bcf5 Bf3 Be4 Bg2 Bf3 Ne5 Bg4 Bge4 Bf3+ Ng4 Rcg6 Ba8 Rgc6 Bd5
n3bBb1/1k2pn2/q1qRB1r1/2RRQR2/1BP3r1/NN5K/pb1B3B/1B5b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 h5 g4 d5 b4 Kd7 f4 Kc7 Kf2 a5 Kg3 h4+ Kh3 d3 f6 d4 f7 d2 f5 d3 b6+ Kc6 b7 a4 b5+ Kc7 f6 a3 b6+ Kc6 g6 a2 g7 Rh7 Nf3 Ra3 Nd4+ Kd6 Nb3 Kc6 Qe1 d1B Qe5 d2 Bd3 Ra5 Na3 Rc5 Bb1 Nd7 b8B Qc7 b7 Nh6 g8B Rg7 g5 Bh5 g6 d1Q Bd2 Qe2 Rf1 Nb6+ Rf5 Na8 Ba7 Rb5 b8B Be6 Bc5 Kb7 Bcb4 Qc6 B8d6 Rb6 Bc7 Rh7 Bb8 Bg7 f8R Bd5 Be6 Nf7 Rc8 Bh8 Rd8 Rg7 Rd6 Rg8 g7 Qf3+ Kh2 h3 Bc7 Qd1 Kg3 h2 Kh3 h1B Bb8 Re8 g8R Qf1+ Rg2 Rg8 Bc7 Qg1 Rgg5 Qgc5 Bb8 Qa5 Bc7 Qa6 Bb8 Nh6 f7 Rg6 f8B Nf7 Bd3 Bg7 Rd1 Bf6 Bb1 Rg7 Qf4 Bb2 Qe5 Rg8 Rg3 Rg4 Rd3 Bdf3 R3d5 Bg6 Rc5 Bh7 Bdh6 Bg8 R1d5 Bd1 Bhd2 Bc2 Rh5 Bg6 Bc7 Nh8 Rf5 Be8 Bf4 Nf7 Bh2 Rb5 Bca5 Rb6 Bd2 Rg1 Bac3 Rg4 Bb4 Bh7 Rd8 Qcb5 Bd7 Rbg6 Be6 Qbc6 R8d6 Bg8
1R1BN1B1/Q2BK3/1prNbB1R/1Rpkq1nR/2b3p1/6Rr/4n1P1/1bn3R1 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 fxe5 g4 b3 Be7 b4 Bg5 hxg5 axb4 Kf2 Kd7 Ke3 f5 Kf4 h5 e4 c5 d4 b6 a4 b3 g6 b2 g7 h4 d6 Kc6 e6 h3 Ke5 h2 d5+ Kb7 a5 f4 e7 f3 e8R f2 a6+ Ka7 d7 Nc6+ Ke6 Rb8 d6 Rh5 e5 Bb7 Na3 b1B Nf3 Rg5 Nd4 Ba2+ Nc4 Ra8 Bb2 Kb8 Qa4 Bb1 Nb5 Ba2 Nc7 Nf6 g8B Bc8 a7+ Kb7 Re7 Nb4 Rh7 Bb3 Rh6 Na2 Kf7 Ne8 e6 Re5 e7 Ng7 e8R Rh5 Re3 Ne6 Bf6 Bc2 Ne8 Qc7 Ke7 Ng5 Rh3 Qb8 d8R Be6 d7 Qe5 Rb3 Rc8 a8R Bh7 Ra5 Bd3 Qa3 Kc6 Ncd6 Kd5 Rc3 Bg6 Bb5 f1B Re3 Bfd3 Rag1 Bc4 Rf3 Rc7 Rb8 Nc1 Ba4 Rc8 d8B Bb1 Bd7 Rc6 Rb5 Rh4 Qa7 Rh5 Re1 Rh4 Rfe3 Rh5 Rh3 Rh4 Rhg1 h1N Ree3 Ng3 Rf3 Nge2 Rf5 Nh7 Rg3 Rh3 Rfh5 Ng5
N2n3r/1RK1b2p/N1p3B1/2rBP2b/1bNk2B1/B6B/1qB2n1p/r1N3RQ w - - 0 1 illegal: No proof kernel
1R1N1BR1/1B1p1R1B/RrQnbrqR/5pb1/1kNB1P2/p4n2/1bR1K3/3n4 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 f4 Ke7 c4 a5 e4 g5 h4 f6 b6 g3 h5 g2 c6 a4 c5 g4 h6 g3 h7 Qe8 e6 Qg6 c7 Ra6 e5 Qc2 c6 Qf5 b7 Qe4+ Ne2 g1N Qd6+ Ke8 e7 g2 Na3 Qf5 Nd4 Nh6 Nc4 Nf3+ Ke2 g1B Ne6 Bd4 Nd8 Nf7 Ba3 Bb2 Rh6 Rb6 Bg2 Rg8 h8B Na6 b8R Bb7 c8B Nb4 c7 Nd5 Qc6 Qg6 Bh3 Bg7 Bf5 Ne3 Bc2 Ba6 Bb7 Nd1 c8R Nd6 Bf5 Rf8 Ra2 Qg5 Bh7 f5 Bc5 Qg4 Bd4 Bf6 Bg7 Rf7 Bf8 Bg5 Ra1 Rf6 Ra2 Ba1 Rc2 a3 Ra8 Bb5 Ra6 Qh5 Rb8 Bc3 Ne6+ Kf7 e8R Qg6 Rec8 Bb2 Nd8+ Ke8 e6 Ba4 e7 Bb3 Ne6+ Kf7 e8R Ba2 Bg7 Bb3 Rg8 Ke7 Rcf8 Ba2 Nd8 Bb3 Qc8 Ba2 Nc6+ Ke6 Rf7 Kd5 Bf8 Bb3 Be5 Kc5 Nd8+ Kb5 Qc6+ Kb4 Bd4 Ba2 Nd2 Bd5 Nc4 Be6
N2K1rbk/1Np3R1/B2NB1n1/p1Qrn2N/1B1BP3/5N2/1b3prN/3qq1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 f5 b4 Kf7 d4 Kg7 g4 a5 e4 h4 d6 h3 g6 h2 d5 Qd7 b6 Nf6 b5 Nh7 g5 Ra7 b7 Nc6 b8N Ba6 b6 Ra8 b7 Ra7 Nd2 Nb4 Ba3 Kg8 g7 Bd3 Qc2 Nf6 Qc5 Qc6 d7 Qe6 d8N Qd6 Nf7 Nh5 Nd7 Ba6 b8B Ra8 Ba7 Rh7 Nb6 Rc8 Na8 Qh6 d6 Nf6 d7 Nc6 d8N Ng4 Bb4 Qh4 Nb7 Bc4 Nfd6 Rd8 Ra3 Bb3 Ba6 Ne7 Nf1 Ng6 Ra2 Rd7 Rg2 Qe1 Rg3 Rh5 Bb6 Kh7 g8B+ Kh8 Be6 Bg7 Rg2 Bb2 Ba7 Nf8 g6 Rg5 g7+ Kh7 g8N Kh8 Ne8 Rd5 Ned6 Ng6 Nf6 Ba2 Nh5 Bc4 Rg3 N4e5+ Kg2 f3+ Kh3 f2 Nf3 f4 Rhg1 h1Q+ N1h2 f1R Bb6 Nf8 Kh4 Rg7 Ba7 Nfg6+ Kg5 Rf2 Kf6 Rg2 Qb5 Rg8 Bd4 Qd1 Qc5 Rb8 Ne1 f3 Rg4 f2 Nef3 Nf4 Ke7 Rf8 Re1 Qf1 Rg7 Qfe2 Rg1 Qee1 Nf5 Rf7+ Ke8 Nfg6 Nfd6 Ba2 Kd8 Bc4 Bb5 Rf8+ Be8 Bb5 Bh3 Bd7 Bg4 Bc8 Bh3 Rf6 Bb5 Be6 Ba6 Bg8 Be6 Rf8+
1b1R2R1/1p1QRp1N/2KnN2R/2R1R1Bn/pP2B3/1r1rb2k/2r3n1/1B3B1b w - - 0 1 illegal: Other
R1r2r1r/1KB1B3/1N3rp1/3NQbB1/pR4P1/1R1p2b1/BB1R1n2/2Br2kq w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Na6 h5 Nc7 h6 Ne6 Bc4 Ba6 Bf1 Ng7 hxg7 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 a5 Kd5 e5 f4 h5 g4 a4 c4 h4 b4 d3 b6 e4 c5 h3 b5 h2 c6 d2 c7 e3 b7 e2 b8B e1R b6 d6 Kc6 d5 b7 d4 Ra2 Rh5 Nf3 Bb4 Bc4 d3 Qe2 d1R Nc3 Bd6 Nd5+ Kf7 f6 Be6 c8R Rh3 f5 Qe7 Bc7 Be5 b8B Bd6 Rd2 Rh4 Qe5 Ra6+ Kb7 Rg1 Ba2 Rh8 Ba7 Qf8 Ra8 Rgf1 Bd4 Rc6 Rg1 h1R Bdb2 Rf2 Re1 Rhf1 Re4 Rc2 Rb4 Qd8 Qe3 Bg3 Qe5 Qe7 Rb8 Qc5 Rb3 Qe3 Rb4 Qh6 Rb3 Qh1 Rb4 Ne7 g8R Nc8 Ra8 Bd7 Re8 Rc4 Re6 Rc2 Reb6 Rc6 Rb3 Be6 R6b4 Nd6+ Ka7 Ne4 Kb7 Rh6 Bd6 Rc8 Bc7 Kg8 f7+ Kh7 f6 Bf5 f8B Rh5 Be7 Kh6 Ng1 Kg5 Nb6 Kh4 Ne2 Kh3 f7 Kh2 f8B Rh8 Nf4 Kg1 Nfd5 Rf3 Bh6 Nf2 Nc3 Be4+ Ncd5 Rff8 Bhg5 Bf5 Qd6 Rfe1 Qf4 Re6 Qe5 Ref6
BR3bBB/1b1pp3/3np1Br/KR2p3/1qB2n1k/BRqpP1N1/1R1Q3N/8 w - - 0 1 illegal: Other
1R3nb1/1n5N/1Q3RqR/1R1nB3/K2R1R2/Pr2BNb1/1qRRp3/k1q4b w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 h5 g5 b5 f5 Ra6 Be2 Rb6 Bg4 Rf6 gxf6 hxg4 d4 Kd6 Kd2 c5 Kc2 g5 Kb3 e5 h4 e4 a6 g3 a7 e3 a8R e2 h5 b4 a3 c4+ Ka4 g2 h6 c3 h7 g4 Nf3 g1Q Rh6 b3 Ra2 b2 Be3 c2 Nc3 b1B Ra5 c1N Rb5 g3 Qb3 g2 Rc2 Ba2 Qb1 Bg7 f8R Nb3 f7+ Nf6 Rg8 Na5 f8R Qb6 Ne4+ Ke7 Neg5 Kd6 Rf7 Nd7 Re8 Ba6 Rb8 Qc1 Qb2 Rg8 h8B g1Q Nh7 Qg6 Qb1 Bb7 Qb2 Ne8 f6 Nc7 Rff8 Bc6 f7 Be5 Qb3 Bg3 Be5+ Ke7 Qb2 Nb7 d6+ Ke6 d5+ Kf5 Qb1 Ke4 Qb2 Kd3 Qb1 Nf6 d7 Ne6 d6 Nd5 d8R Qd4+ Qb4 Qdb2 d7 Rh8 Qa5 Bc4 Qb6 Ba2 Rfe8 Nf8 Re6 Rg8 Rf6 Rg7 Rc5 Bc4 Rf4 Kc2 Rf6 Kb1 Rf4 Ne6 f8R Ka1 R8f6 Ba2 Rc2 Nf8 Rdc8 Bc4 d8R Re7 Rd2 Re6 Bc3 Re4 Be5 Ba2+ B3d4 Re3 Bc5 Rb3 Be3 Bb1 Rc7 Bf5 Rdd4 Be6 Rd2 Bg8 Rdd7 Nb4 R7d4 Be4 Rcc2 Nd5 Ng1 Bg2 Nf3 Bh1
1bq1RBB1/NBnRnqK1/B5P1/3Nr3/3p3b/rnB1p1Q1/4b2B/B1k3B1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 c4 h5 f4 h4 b4 d3 g4 h3 c5 h2 f6 Ke6 f7 a4 f5+ Ke7 g6 Kf6 g5+ Kg7 c6 d2 c7 d6 b6 a3 b7 a2 b5 Na6 b8B Qf6 b6 Bd7 c8B Nh6 b7 Qd8 Bb2 Be7 Ba7 Re8 b8B Ng8 Ne2 Bb5 Nf4 Be2 Na3 Nc7 Bb7 Qc8 Qb3 d1N Bc3 Ne3 Nb5 Nc2 Re1 a1B Bg1 Ra3 Nd5 Nd4 Na7 Bf6 Rd1 Ne7 Rd2 Bb2 Rd3 Bc1 Ba1 Bf4 f8B+ Kh8 g7+ Kh7 g6+ Kh6 g8B+ Kg5 Qc3 Nb3 Bg7 Kg4 Bh8 Bh4 f6 Kg5 f7 Bfg3 Ke3 e4 f8B Kf5 Qe1 Be5 Qg3 Bf4+ Kf2 e3+ Kg2 Ke4 Bhc3 Nf5 Kh3 Re5 Nb4+ d5 Rd2 Bd3 Kg4 Ba6 Kh5 Ne7+ Qg5 Bc4 Kh6 Be2 Kg7 Kf3 Rd4 Bfg3 Re4 d4 Nd5 Bf4 Bh3 Bfg3 Bd7 Bf4 Bb5 Bfg3 B5a6 Bf4 Bf2 Bfg3 Rb1 h1Q Bg1 Qhh3 Rb2 Qhd7 Rc2 Bd3 Rc1 Ke2 Rf1 Qe6 Rf7 Kd1 Qf4 Kc1 Qg4 Bh2 Qg3 Nc6 Rd7 Be2 Rf4 Qee8 Rff7 Qe6 Rfe7 Qf5 Re8 Ne7 Bf2 Qf4 Bg1 Qf7+ Kh8 Re6 Qh3 Na8 Qf3 Bf4 Be5 Bh6 Bg3 Bf4 B3h2 Bb8 Qf2 Re5 Qg3 Qf2 Kh7 Nc7 Kg7 Qf7+
BQ1B1B1r/1r3p2/5qb1/1BN5/r1RRb1pk/1BN2P1B/b2Bn3/r1b2KB1 w - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 h5 gxh5 Nd7 dxc5 axb4 Be2 d4 Bc4 Nb6 Bf1 Nd5 exd5 Be6 Kd2 Bd7 Ke1 Bc8 a4 g5 c4 b5 h4 e5 h6 Ke7 a5 Kf6 c6 e4 h7 d3 c7 e3 h5 e2 a6 b3 a7 b4 d6 b2 d7 b3 f3 Kf5 c5 Qe8 d8B Nf6 c6 Qe7 h6 Nd7 Nd2 b1B Ra4 b2 Rc4 Ba6 c8B Qa3 c7 Kg6 Rhh4 Nc5 Bch3 Ne6 c8B Nd4 Qb3 Qd6 Bce6 Bb7 Ne4 Ba2 Nc5 b1B Bd2 Be4 Qb8 Qe5 Kf2 e1R Ne2 Qf6 Nc3 Ne2 Rd4 Bd6 Bb3 Bf4 Rg4 Kh5 Rc4 Rg8 h8B Bg6 Bg7 Rh8 h7 Rd1 Be3 d2 Bf8 Bbe4 Kg2 Rb1 Bg1 d1R Rd4 Rg8 h8B Bc1 Bhg7 Rb2 Bh6 Rh8 Rf4 g4 Rc4 Bd5 Rfd4 Kh4 Bd2 Bde4 Qd6 Rb8 a8B Rb4 Qb8 Ra4 Rb4 Ng3 Bb5 Ne2 Rbc4 Rb1 Kf2 Ra1 Be3 Rd2 Kf1 Rb2 Bd2 Rg8 Bc2 Rbb4 Bb3 Rh8 Be8 Rb6 Bb5 Rb7
q1q1q3/B2p1RRQ/k2q1N1p/1n1N4/K1BRbR2/1rb3RP/1p2R3/3R2Rn w - - 0 1 legal: proof: d4 b5 b4 a5 f4 f5 g4 c6 gxf5 Nh6 f6 Ng8 f5 axb4 e4 c5 dxc5 Qc7 f7+ Kd8 Qd4 Ra6 Qd1 Rf6 e5 Qb6 exf6 Kc7 Ba3 Kc6 Bc1 Qd8 Kd2 Kb7 a4 e5 c4 g5 Kc2 e4 Kb3 g4 h3 g3 a5 h6 c6+ Ka7 c5 g2 c7 e3 c6 e2 a6 e1Q Be3+ Bc5 f8R Qh4 f7 Qd4 f6 Qe4 Qc2 Bb7 c8R Bd4 c7 Qh4 Bc4 Ba8 Nf3 g1Q Nh2 Qg2 Rd1 Qf3 Qh7 Qhe4 Ng4 Nc6 Nc3 Nge7 Re8 Nf5 f8R Ng3 f7 Nh1 Nf6 Qg3 Ra3 Qd6 Ncd5 Qg6 Rb8 Qc8 Bf2 Qg8 Re2 Qg2 Rb6 Bc3 Bg1 Qe8 c8R Rg8 Raa1 Rg3 Rd4 Qge4 Rad1 Rd3 Rcb8 Qc8 Rg8 Qee8 f8R Bb7 Rf4 Re3 Rf7 Nd4+ Ka2 Ba8 Rg3 Bb7 Rc6 Rf3 Rc5 b3+ Ka3 b4+ Ka4 b2 Rb5 b3 Rb4 b1Q Rgg7 b2 Rb3 Ba8 R8b4 Bb7 Be3 Ka8 a7 Nb5 Rgg1 Bc6 Rfg7 Kb7 a8R Qc1 Ba7 Ka6 Rf7 Qb7 Rd8 Qa8 Rb8 Qee3 Rbg8 Qee8 R8g7 Bb7 Ne7 Be4 Ned5 Bd2 Rd3 Re3 Rd4 Rb3 Rd3 Bc3 Rdg3 Nf2 Bd3 Nh1 Rd4 Qec8 Bc4 Qe3 Reg2 Qe2 Rh2 Qh5 Rhd2 Qhe5 Re2 Qee8
N2N2RB/B1B2p1p/b2bBp2/Bqn1q1B1/2K3b1/B7/p2Q1P1r/1kB1n1R1 w - - 0 1 illegal: No possible last move, all moves rejected
b1b2N1R/q4BB1/2nN1P2/rnR3r1/3N1BB1/1bn2N2/RQb2k2/K1n3R1 w - - 0 1 legal: proof: c4 b5 f4 e5 h4 d5 cxd5 f5 a4 g5 axb5 gxh4 e3 Bh6 fxe5 f4 Ke2 f3+ Ke1 Bf4 exf4 Qf6 Ra3 Qe7 Ra1 Qd8 b4 Ke7 g4 h5 d4 c5 Kd2 a5 Kc2 f2 Kb2 a4 b6 c4 b7 h3 g5 h2 e6 Kd6 g6 h4 f5 h3 b5 Rh5 b6 Qe8 f6 Qf7 g7 Ra6 e7 Bf5 e8N+ Kd7 d6 Kc6 d7 Kd5 d8R+ Ke4 d5 Qc7 d6 Nc6 b8R Ra5 b7 Rg5 d7 Nge7 g8B Nd5 Qb3 Nc3 Nd2+ Ke3 Bf7 Bc2 Ra2 a3+ Ka1 Qb6 Ne2 Qa7 Bg2 f1B Rbc8 Kf2 Rg1 h1B b8B h2 Bf3 Bh3 Bg4 Bd5 Nd4 h1B Bf4 Be6 Nd6 Bhe4 Rb2 a2 Rh8 B4d5 d8N Bhg2 Rc7 Bc8 Qb4 Bge4 Qa3 Bb3 N8e6 Bec2 Nf8 Bf3 Rb1 Bd5 N2f3 Bde4 Kb2 a1N Bcd2 Bd5 Rbd1 Bde4 Bc1 Bd5 Rd2+ Ne2 Rd7 Bb1 Rdd1 Nb8 Ne8 Rg6 Bh2 Nc2 Rc7 Ba8 Bh6 Rgg5 Rc5 Nc6 Qa1 Na3 Bg7 Bh7 Rd2 Nb5 Nd6 Bb1 Qa3 c3+ Ka1 c2 Bf4 c1N Ra2 B1c2 Qb2 Nec3
1r2QqNr/q3B1bN/4RR2/KR2B2R/4qB2/BPN3nb/3r3q/k3qN2 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 h5 f5 Bd7 g5 Bc6 Be2 Bd7 Bf3 Bc8 Bg4 hxg4 f7+ Kd7 Qe2 Kd6 Qf3 Nd7 Qd1 Ndf6 gxf6 Kd7 d4 Kd6 Kd2 e5 Kc3 c5 h4 g5 b6 a5 b3 a4 b7 a3 b8R a2 h5 g3 h6 c4 Kb4 g4 h7 c3 Ne2 g2 Ng3 g1R Bf4 c2 Nf1 c1Q Rh5 g3 Qe1 g2 Rb5 Qd2+ Nc3 Bg7 f8B+ Qe7 f7 Rb8 f6 Rb6 Ka5 Rb8 Qe4 Qe2 Re1 Bh3 Qg6 Kd7 d6 Kc6 d7 e4 d8B e3 Bdc7 Qd3 Bce5 Nh6 Re2 Qe8 Ba3 a1Q f8N Nf5 Re1 e2 f7+ Bf6 Nd7 Ng3 f8N Qe4 Qf7 Qc8 Qe8 Bg7 Rf5 Rh1 Rh5 g1Q Nf6+ Bd7 Ng8 Rh2 Rb4 Qgg2 d5+ Kc5 d6 Bh3 d7 Qg1 d8B Qb2 Rd1 e1Q Rd6 Rd2 Re6 Qh2 Rhh6 Qba1 Rhf6 Qa2 Bec7 Qaa1 Rb5+ Kd4 Be7 Kd3 Bcd6 Kc2 Bde5 Qa2 Nd1 Kb1 Nc3+ Ka1 Nh6 Rg8 h8R Qc5 Rh7 Rh8 Ng8 Qd6 Rh5 Qc5 Nh7 Qa7+ Ra6 Qab1 Re6 Qf5 Rf6 Qbe4 Re6 Qf8 Rf6 Qc5 Rae6 Qa7+
3N3R/1R2pB2/nN2NBBB/Rnb2b2/3P2n1/R2b2r1/1b4N1/1k1K1rQb w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ba6 g5 Bc8 h5 Qd6 Ne2 Ng8 Ng1 Qg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 b4 Kd7 d3 Kd6 f6 Ke5 b6 Kd4 g7 a5 b5 c5 f7 h5 b7 f3 b6 h4 g6 h3 d6 h2 d7 a4 d8N c4 Nh3 a3 Bh6 c3 Nf4 c2 Ng2 c1N Nd2 Kc3 Nc4 Na6 b8B a2 b7 Bf5 Nb6 Nf6 g8B Kb2 g7 Nb3 Be5+ Nd4 b8R Ng4 Bf6 f2+ Kd2 Rh7 Rb7 Rb8 Be2 f1B Bf3 Rc8 Be4 Rc3 Rg1 Nb5 d4 h1B Qe1 Rh8 Kd1 Bd3 Rf1 Rh7 Rf3 Rb3 Qg1 Rh8 Rc1 a1B Rc5 Kb1 Re5 Bb2 Rg3 Nd6 Ra5 Nb5 Rf3 Be6 Bg6 Bef5 B8h7 Rc3 g8R Bg7 f8N Ra3 Nfe6 Ra1 Re8 Rg8 Bf7 Bh8 Bfg5 Be5 Bf6 Bd6 Rg3 Rg5 Bhg6 Bc5 Re3 Rh5 Rh8 Rh3 Re2 Rg3 Rc2 Ra4 Rc3 Rc4 Rb3 Rc2 Rc3 Rf2 Rca3 Rf1+
1r3RNB/Bk2N2K/R1b1pP2/1N2QNqR/1b3r1p/1n2RB2/4n2n/4B2n w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 g4 h5 d4 b3 b6+ Kb7 g6 b2 Kg5 e6+ f6 c4 f4 c3 f5 c2 d6 Nc6 d5 Bd7 g7 Bc8 Kg6 Na7 g5 Qe7 f7 Nf6 g8N Nh7 d7 Nb5 d8B Ra7 d6 Bd7 Ne2 Ra4 Nbc3 b1N Qd5+ Kb8 b7 Ra2 Nd4 Ra4 Qe5 Ra3 Bd2 c1N Be2 Bc8 d7+ Qd6 Bf3 Ra4 Bf6 Ne2 d8R Ng3 Be1 Nd2 Ne7 Nb3 Ra2 Ka7 b8B+ Ka6 Ra1 Qc5 Ba7 Bb7 Rd6+ Bc6 Ra3 Kb7 Rh3 Bh6 f8R Nh1 Rd5 Rc4 Ra6 h4 Bg7 Ra4 f6 Rg8 Ndf5 Rf4 Rg3 N5d4 Nb5 Ne2 Rc8 Rf8 Bh8 Bg7 Rh3 Rg8 Rf8 Qe3 Bg4 Qd2 Re3 Qc1 Bf3 Qc5 Rf7 Rb8 Rf8 Qc1 Kh5 Qd2 g6 Ng5 Rc5 Bh6 g7 Qd5 Kg6 Qd2 Bd5 Nf3 g8N Nh2 Bf3 Qd5 Rf7 Bf8 Kh7 Ka8 Ng6 Bd6 Rf8 Kb7 N6e7 Qd2 Rd5 Bb4 Nfd4 Neg3 Qd6 Qg2 Rh5 Ne2 Qe5 Qg3 Ndf5 Qg5
2QqrnNK/1B3rb1/1B4N1/3NB2R/R2qknbN/2Bq4/nRrb1P2/1R6 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 c5 d4+ Ke4 b4 e5+ f6 a5 g4 h5 Kg6 a4 b6 a3 f7 h3 b5 h2 g5 a2 d6 c4 d7 c3 d5 c2 d6 h4 b7 h3 b6 Nc6 b8B Ra5 b7 Nd4 Nf3 Rb5 Nh4 Rc5 Bb2 c1N Bc3 Ne6 Ba6 Bh6 f8N Nf6 Qg4+ Nf4+ Kf7 Nh7 g6 Rg8 g7 Rc7 Rf1 h1Q Nfg6 Re8 g8N h2 Qe6 Rc4 Bc7 Qf3 b8R h1R Rb2 Rc6 Bb7 Qd3 Qh3 Nf8 Qg4 Bg5 Kg7 Bh6+ Kh8 Rg1 Qe6 Rg5 Rg1 Rf5 Rg5 Rf7 Rh5 Qe7 d8B Qg5 Qf6 Bg4 Qe6 Qe7 Bb8 Qd7 Bb6 Qd8 Ba6 Rc5 Qc8 Rcc7 d7 Rc6 Na3 Rc4 Rab1 a1Q Nb5 Na2 Nc7 Rc6 Bd2 Rc4 Nd5 Rc2 Rb5 Qad4 Bb7 Qa4 Bc3 Qad4 Ng2 Kf3 R5b3 e4+ Be5 e3 N2h4+ Ke4 Ra3 e2 Ra4 e1B Rb2 Qg5 d8R Bd2 Rd6 Qd8 Rc6 Rc7 Rc5 Rf7 Rcb5 N4e6 Rb1 Nf4 R5b2 Bg7+
R3bbR1/1N2NBr1/1P4Br/1b1n2b1/1nb5/BN5k/2R1B1Rr/K1n1NQq1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 c5 Kd2 h5 Kc3 a5 g4 f5 b4 f3 Kb2 a4 g6 Kf6 b6 c4 d6 f2 e5+ Ke6 d5+ Kd7 b5 f4 g7 h4 b7 h3 g5 h2 g6 f3 b6 Qh4 Nd2 Qg5 Be2 f1B Nb3 f2 Ra2 c3+ Ka1 c2 Nf3 a3 Rg1 h1R Ne1 Nf6 g8R Na6 b8R Ra7 g7 Nb4 Ra8 R8h6 Rg2 R1h2 Rb2 a2 e6+ Kd8 d7 Ke7 d8N Bd7 Qd3 Be8 Nc6+ Kd6 Ne7 Ke5 d6 Nfd5 d7 Kf6 Be3 c1N d8N Qg3 Bc5 Kg5 Rc2 Kh4 Nb7 Kh3 Rh8 Qe3 g8B Qg3 Bf7 Qe3 Kb2 a1B+ Kb1 Bb2 Rhg8 Bf6 Qa6 Bg5 Ka1 Nbd3 Ba3 N3b4 Bd1 Bfb5 Be2 f1B Ng6 Rh8 Bh5 Bbc4 e7 Qf2 N7c5 Rd7 Nb7 Bcd3 Be6+ Bf5 Bd1 Rh6 Qe2 Rd6 Bf7 Qg1 Qf2 Bfb5 Be2 Bfd3 Qf1 Bed7 e8B Rf6 Ne7 Bdc4 Bfh5 Rf7 Bg6 Rg7 Bef7 Be8
R1R1N3/N4PKB/knq2b2/1rqnB3/1rb4r/N2Bb1NB/R2RrQ2/3r4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 e5 b4 a5 f4 c5 d4 Kc7 g4 Kb7 d6 h5 g6 a4 g5 c4 d7 a3 f5 a2 d5 h4 b6 c3 f6 c2 b5 h3 f7 h2 g7 Qe8 d8R Be6 d6 Bd5 d7 Ba3 g6 Nf6 g8B Bb4 g7 Rh5 Na3 Be1 Ne2 Bb4 Qd2 Nc6 Ng3 Rh7 Bh3 Na5 Qf2 Rb8 Rc8 Rh5 d8R Qc6 Rd1 h1R Rd2 Bc4 Bb2 c1Q Bh7 Bc5+ Bd4 Rd1 g8B Rh4 Bg6 Qc2 B8h7 Rb1 Rg8 Rb4 Rgd8 Ka8 b7+ Ka7 b6+ Ka6 Re1 a1B Ree2 Qd1 Ra2 Qc1+ Red2 Qc2 Bh5 Rb5 Be2 Bb2 Bd3 Nd5+ Ke2 e3 Kf3 e2 Rg8 Rh6 Kg4 e1R Kf5 e4 Be5 e3 Rgd8 Rh4 Kg5 Qd7 Kg6 e2 Kg7 Rd1 Re8 e1R Rf8 Re2 Rg8 Ra8 b8N+ Kb7 Rgd8 Be3 Nc6 Ka6 b7 Rb8 Na7 Qc6 Rh8 Nb3 Rhg8 Nc5 Rgd8 Na4 Rf8 Ra8 Rg8 Nab6 b8N+ Ka5 Na6 Rb8 Nc7 Rb4 Ne8 Ka6 Qe1 Qc5 Qg1 Qa4 Rh8 Qac6 Qf2 Nf6 Bd4 Bf4 Nd6 Be3 Rce8 Nfd5 Bc3 Rb7 Ra8 Na4 Rhc8 R7b5 Bd4 Nab6 Bf6 Be5 Ne8 Bd6 Bb2 Be7 Be5 Bf6+
RqkB4/2b3QP/1p5n/1nN1r2R/B3q1bK/5B2/B1RqN2N/b2N1nRr w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 d4 f5 h4 c5 e4 b3 a4 c4 e6+ Kc7 e5 g4 h6 c3 e7 b2 e8B c2 d6+ Kb6 d5 Qd7 a5+ Ka7 h5 f4+ Kh4 f3 h7 b6 h6 Kb7 a6+ Ka7 e6 g3 e7 f2 Ne2 g2 Bg5 c1B Rg1 Qd8 d7 Bg7 d6 Bb7 Ra2 Bd4 Nbc3 b1N Rc2 Qc8 d8R Nc6 d7 Kb8 a7+ Kc7 Bf7 Qb8 Ba2 Bc8 e8N+ Kb7 Qd3 Nd2 Nd1 Ba1 Qg6 Nd4 Nf6 Nb5 Ng4 Bcb2 Re8 Be5 Qg7 Bh2 Bd8 Bc7 Rh1 g1Q Nh2 Qg6 Rg1 Qe6 Bg2+ Qc6 Bf3 f1Q Re5 Qg2 Rg5 Ne7 Rh5 Re8 h8R Nf1 h7 Ng8 Bg5 Nh6 d8N+ Ka6 Rf8 Re5 Nb7 Bg4 Bd8 Qd6 Rg8 Qd2 Bc6 Qe4 Rf8 Nd6 Ba4 Nb5 Nc5+ Ka5 Nd7 Ka6 Rg8 Kb7 Nc5+ Kc8 Rh8 Qbb7 Rf8 Rb8 a8B Qa7 B8d5 Ra8 Bc6 Qb8 Bcd5 Qef4 Bf3 Qe4 B4b3 Ra3 Ba4 Rb3 Rg8 Rb1 Ne3 Qba8 Rg3 Kb8 Rf8 Re1 Nd1 Ne3 Rh8 Rh1 Rg1 Nf1 Rg8 Bd6 Be7+ Kc7 Re8 Qab7 Ra8 Qb8 Bf6+ Kc8 Bd8 Bc7
1RnRQN1b/q3Bn1B/r1rR3K/2b2N1n/1pN5/1k2B2N/2n2BPn/3bR3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 a4 h5 d6 b5 a5 b3 d4+ Kb4 a6 c5 d7 c4 a7 b2 f6 c3 g6 e5+ Kg5 h4 f4 h3 f5 c2 d5 h2 d6 e4 g7 e3 Qe1+ Kb3 Ra6 e2 Be3 c1B Na3 b1N Nh3 b4 Nc4 Qa5 d8B Nh6 g8N Nd7 f7 Bb2 Ne7 Nb6 d7 Nd2 Rg1 Qa2 f6 h1N Nf5 Ng3 Be7 Nh5 d8R Nf3+ Kg6 Qa5 B7c5 Be7 f8N Nh2 f7 Bg7 Bcd4 Bc5 Bf2 Bd7 Bde3 Nc8 Rd6 Ba4 Kg5 Rh7 Kg6 Bh8 Rh1 Rb8 a8R Rb6 Rb8 Qa7 Rg1 N6g4 Rh1 Ne5+ Kg5 Rg7+ Kh6 Rg5 Ne6 Ra6 f8B Rg7 Be7 Rc6 Nf8 Rg3 Qa1 e1N Bd3 Nc2 Re1 Rg7 Qd1 Rf7 Qg4 Rf6+ Qg6 Ra6 Rd4 Rfc6 R4d6 Nef3 Be4 Ng5 Qe8 Bb5 Na3 Be2 Nc4 Bd1 Ng7 Rab6 Bh7 Ra6 Nf5 Nf7+
RbbK4/4N2n/6Bb/NPR2B1R/1k1qn2B/rBR1Qpb1/3r1rNb/7N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 g5 Kc5 f5 d4 f4 e4 g3 h4 a4 b4 f3 e6 a3 d6+ Kf6 d5 Ke5 e7 g2 e8B a2 b6 g4 h5 c6 b5 g3 h6 Be7 b7 Ra5 h7 Bg4 Bd7 Ra3 Bf5 Qf8 Kb6 c5 Kc7 c4 d7 c3 d8R c2 d6 Bh5 d7 Ra7 Na3 Qf7 Qd2 Bc5 Nc4+ Kf6 e5+ Ke7 e6 Nf6 Ne2 g1R Na5 g2 Qe3 Qg7 Rc8 Rd8 h8N Bg4 Rh5 Ne4 Ng3 Qd4 Bc4 Rf1 Bb3 g1B Nh1 Rf2 Rb1 a1B Ng6+ Kf6 e7 Bh2+ Nf4 Ke5 Ba3 c1B e8B Ra8 Rb2 Ba7 Rc2 Bc3 Bb2 Be1 Beg6 Bcd2 Rc4 Bc1 Ng2 Kd5+ Qf4 Bcd2 Ba3 Be3 Be7 Bc1 Bh4 Bcd2 Ra4+ Kc5 Ra3 Kb4 Qe5 Bh6 Qf4 Nc6 b8N Ne7 Qe5 Ng8 Nbc6+ Kc3 Qf4 Ngf6 Ne7 Kb4 Qe5 Nh7 Qf4 Re8 d8R Rd2 Rd5 Beg3 Rc5 Rd8 Ra1 Rf2 Rac1 Rd5 R1c3 Rd6 Re8 Bb8+ Kc8 Rd7 Qe3 Ra6 Nb7 Ra3 Na5 Qg7 Rf8 Rdd2 Re8 Qd4 Rg8 Bbd6 Kd7 Bh3 Ra8 Bb8+ Ke8 Nd6+ Kd8 Bg4 Be4 Bc8 Bef5 Ne4+
1kbN4/1q6/1Pr1Qb2/3r1r1N/p3r1B1/RBr2n1R/RR2K1Nb/NnB1B3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 g4 e5 g5 c5 b6 a4 b7 Kc7 f6 h3 f7 e4 b5 h4 f5 c4 f6 c3 d6+ Kb6 d5 Ka7 g6 h2 d7 e3 g7 c2 d6 h3 Ke2 Rh7 Na3 Qe7 d8R Qe4 d7 Ne7 g8B Rh6 Qe1 Bg7 f8B Nd5 f7 Bf6 Bb4 Nc6 f8N Ne5 b8R Nf3 Ra2 Qh7 Ng6 Nc3+ Kd3 e2 Bb3 Qe7 Nf4 Nb1 Ng2 Rh5 Rf8 Rf5 d8N Qh7 Rb6 Qb7 Re8 Kb8 Re3 Rd5+ Kc4 Rd1 Nh4 Nfd2+ Kd3 Ra5 Bc4 Bg5 Bb2 c1R Nc2 Nc3 Na1 Bf6 Bf7 Rc2 Bc1 Ncb1 Bh5 Rc4 Bg4 Rc6 Bg2 Rc5 Bd5 Rc6 Qf2 e1B Qf5 Bf2 Qe6 Bg3 Ne2 Rf1 Bc3 Rf5 Bc4 Bd6 Nf4 Bde5 Nh5 Bc7 Rhe1 h1R Ng2 Bf4 Rd1 Re1 Rf3 Re4 Rh1 Nf1 Be1 Nfd2 Re3 Bd6 Ke2 Bc7 Ra6 Bf4 b6 Rad5 Ra5 Bc7 Rb5 Bf4 Rbb2 Bd6 Ngf4 h2 Kf2 Nf3 Rea3 Re3 Bb3 Rec3 Rg1 Bde5 Rg3 Bd6 Rh3 Bde5 Bed2 h1R Ng2 Rd1 Be1 R1d4 Kf1 Bh2 Ke2 Re4+
6rQ/3n1kPr/1n3Nb1/N2r1rB1/1b2N1Br/1R1K4/N2Bp1RR/nB2q2R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 e5 g4 c5 d4 h5 f4 a5 b4 a4 g6 a3 b6 h4 g7 c4 b5 c3 g5 c2 g6 h3 b7 h2 f5 e3 b6 e4 f6 a2 f7+ Ke7 d6+ Kf6 d5 Bg4+ Nf3 Ra6 d7 Rh6 d6 Ra5 Bd2 c1R Nc3 Qc8 d8R Qc5 d7 Bd6 f8N Rh5 Bh3 Rh6 Nh7+ Ke7 Nf6 Bf5 Bg4 Ra8 Ng5 Qb4 Rg1 h1R Rg2 R1h5 Qh1 Rf1 Rb1 a1N Na2 Rh8 Qh2 Rf3 Rh1 R8h7 Rc8 Rfh3 Rc2 R3h4 d8N Nd7 b8B Qa5 b7 Bb4 Bf4 Nb6 b8R Qe5 Nb7 Ra5 Rf2 Rd5 Na5 Qc3 Rg2 Qe5 Ne8 Nf6 g8B Nfd7 g7 Bg6 Nf6 Qc3 B8e6 Qe5 Bef5 Qc3 Nh3 Kf7 Bg5 Qe5 Nf2 Qc3 Kd1 e2+ Kc1 e3 N2e4 Qe5 Rb7 Qc3 Qb8 Qe5 Qh8 Qe8 Kb2 e1R Rgh2 Re2 Kc1 Rf2 Kd1 Rf1+ Ke2 Rc1 Rb2 Rc8 Rb3 Qe5 Rc7 Rg8 Rc2 Rb5 Kd3 Qg3 Bc1 Qe1 Rcg2 Re5 Bd2 Rc5 Bd1 e2 Bg4 Re5 Bc2 Rf5 Bb1 Re5 Bge3 Rhf5 Bg5 Rd5+
5r1n/Rp5B/rB1N1bbq/PR6/N1B5/nQ1R3n/bN1R1N2/k1n1rB1K w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 Kf2 c5 a4 h5 g4 e5 Kg2 c4 d4 b3 d6 c3 g6+ Kf6 d7 b2 g5+ Kg7 d5 e4 d6 c2 Be3 c1N Nc3 b1B Bb6 h4 Rh2 h3+ Kh1 e3 Rd2 h2 Nh3 e2 Nf2 e1R Qb3 Re8 Ncd1 Rh7 Nb2 Qe7 d8N Rh6 d7 Qd6 Nf7 Be7 d8R Ba2 a5 Rh8 Rb1 Nc6 Rd7 Qf6 R7d3 Nh6 Nd6 Qe6 Ra1 Na7 Rb1 Nf7 f6+ Kg8 g7 Nb5 f5 Na3 Bc7 Ra6 Bb6 Kh7 g6+ Kh6 g8B Kg5 g7 Kf4 Bh7 Rhf8 g8B Nh8 f7 Qh6 f6 Ke5 Be4 Bd7 Bd5 Bg4 Bh7 Bf5 Be6 Bg6 Bc4 Rg8 f8N Bd8 f7 Bf6 Ne6 Rgf8 Kg2 h1N Nc5 Re7 Nca4 Ree8 Nfd1 Nf2 Kg1 Nh3+ Kh1 Rg8 f8R Re6 Ra8 Rf8 Ra7 Re7 Rc3 Ree8 Bcd3 Re6 Nf2 Re7 Rc5+ Kd4 Ra1 Re1 Rb1 Ne2 Rbd1 Nc1 Bc4+ Bd3 Rc2 Ke3 Qb4 Bg6 Rdd5 Nd3 Rc3 Kd2 Rb3+ Kc1 Rb5 Kb1 Qc3 Nb4 Rd2 Nd3 Qb4 Nc1 Rbd3 Ka1 Qc3 Rf7 Qb3 Rf8
2R5/4BN1R/NP1b3N/1N2QB2/3bBnK1/1p1b1r2/1q2BknR/Rrbnn3 w - - 0 1 illegal: No proof kernel
Nb1BR3/p2pQ1n1/3nPK2/2r1n3/BR2N1b1/r2N2Nk/1nR1R3/1B1B1qn1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kg4 g5 e4 f6 b4 d3 c4 d2 h4 Bg7 c5 Qa5 c6 Qa6 b6 Ne7 h6 Ng6 b5 Bf8 h7 Ba3 c7 Bc5 h5 Be3 b7 Ne7 b6 Qa5 h6 Bc5 Qe2 d1N Nd2 Bd4 Rh2 Qc3 Ra2 Rd8 h8N Bc5 h7 Qe3 Rc2 Qa3 Ng6 Nd5 h8R Qa1 Re8+ Ne7 Kh5 Nc6 b8N g4 b7 f5 Kg5 f4 Na6 f3 b8R g3 Rb4 Bb7 c8B g2 Nf4+ Kf7 Bb2 f2 Nd3 Rb8 Nc7 Bd6 Na8 Ke6 Ba3 Ba6 Bb7 Nb2 Qe3 Rdc8 Be2 f1N Bd1 Bc4 Ne2 g1N Ng3 Bb5 Qc5 Ne3 Re2 Nf5 Ba6 Bc4 Bb5 Ng7 Ba4 Rb6 Qe3 Ra6 Qc5 Bb8 Qe3 Nf5 Qc5 Nd6 Qe3 Kf7 e6+ Kg7 e5 Nef5 e7 Be6 Qe4 Kf7 Qe3 Ng7 Nde4 Bg4 Qc5 Ke6 Qe3 Kd5 Kf6 Rc7 e6 Ne5 Qg5 Rc5 Qh4 Nbc4 Bc1 Nb2 Bg5 Qc1 Rc8 Raa5 e8B Qa1 Bg6 Ra6 Bb5 Ra3 Ba4 Qc1 Re8 Qf4+ Bf5 Qf1 Be3 Rb5 Bb6 Rc5 Rb3 Kd4 Bd8 Kd5 Qh5 Kd4 Qf7 Kd5 Qe7 Kd4 Rg2 Ke3 Rge2+ Kf3 Rb4 Rc7 Ndf2 Kg2 Nd3+ Kh3 Rc6 Ndc4 Nd2 Nef3 Nf4+ Kh4 Bb1 Nfe5 Nde4 Nd6 Rcc4 Rc5 Rcc2 Ndf5 Nd3 Kh3 Red2 Nd6+ Rf2 Qg2 Rfe2 Qf1+
R3r2B/5r2/1qb2q1Q/BR3B1p/1N1Pn3/1qk2pNN/2N1KRq1/2RBn1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 b4 Ke5 b6 Kd4 d6 h5 b7 c5 g6 a5 b5 f5 g5 f3 g7 f4 b6 c4 d7 c3 g6 a4 e5 a3 e6 a2 e7 c2 e8R f2+ Ke2 Nc6 b8N Rh6 b7 Rh7 Nh3 Be7 Rh2 Kc4 Na6 Rb8 Nb4 Bg5 Bb2 c1Q Na3+ Kc5 Nac2 Qb6 d8B Nf6 g8B Ne4 g7 Be7 Bb3 Qb1 g8N Bd7 Nh6 Ne5 Nf5 Rf7 Ng3 Nd3 Bh8 Ne1 d3 Qb2 Rc1 a1Q Ba4 Ra8 b8R Qb3 Qd2 Qaf6 d4+ Kc4 Qe3 Bc6 Rb7 Qc5 Ba5 Qb6 Rf8 Re8 Rg8 Qd8 Rb5 Qb6 Qf3 Bd8 Qg4 Kc3 Qg6 Be7 Qh6 Bd8 Bg2 Be7 Bf3 Bd8 Bg4 f1Q+ Kd1 Qg2 Bf5 Qg7 Rf8 Bh4 Rg8 Qf6 Rf8 Qf1 Rf2 Qg2 Ke2 Ree7 Ra8 Re8 Nf1 Bg3 Bg4 Bh2 Ng3 Qb1 Bb3 Bg1 Bbe6 Qb3 Bef5 Qh2 Kf1 Qh1 Bd1 Qg2+ Ke2 f3+
Nq1qr3/1B1k1BK1/5n1P/3bqNB1/3p3b/rp2N2N/5Q1n/RRB1q1RR w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 b5 Kd3 d5 Kd4 g5 Ke5 e6 f4 d4 h4 b3 a4 b4 c4 g4 c6 g3 a5 b2 c7 g2 h6 b3 h7 Bc5 h5 Ba3 f6 Qe7 h6 Qf7 f5 Bd7 c8N Ne7 c5 Ng8 c6 Bc5 a6 Be7 c7 Bc6 a7 Bb5 Bc4 Qg7 Nd6+ Kd7 c8B+ Kc6 Bb7+ Kd7 Nc3 b1Q Nd5 Qd3 Qf3 Bc6 Ne3 Bd5 Nh3 g1Q Qf2 Q1g5 Rb1 Qf8 f7 Qd8 f8R Nf6 Rg8 Qf1 Rg6 Re8 h8R Qe1 Rf8 Qb4 Rfg8 Qh5 Rgg1 Qg5 Rf1 Qh5 Rgg1 Ng4+ Kf4 Qb5 f6 Nh2 f7 Bh4 f8B Qe2 Bg7 e5+ Kf5 e4 Kg6 Qh5+ Kh7 Qe5 Bf6 Qb4 Bg5 Qb5 Ng4 e3 Nf5 e2 Nge3 e1Q Kg6 Ke6 Kh7 Nd7 Kg6 Nf6 Kg7 Kd7 Ra1 Bc6 Bf7 Bd5 Rb1 Rc8 a8N Rc2 Ba3 Ra2 Bb2 Ra3 Ra1 Qea5 Rfb1 Qe1 Bc1 Qbb4 Rb2 Qbd6 Rbb1 Q6b8
N1KR1B2/1RbPb1nr/1N4Q1/Npr4p/Nbn2BB1/4R3/b4R2/1q1qB1k1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 c4 d6 b2 Kd5 e4 f6 Kg6 a5 c3 f7 c2 f5+ Kh7 g6+ Kg7 a6 Kf6 a7 e3 g7 Kg5 d7 Kf4 Ke6 Kg3 f6 Kf2 d5 e2 g5 e1B d6 Bd2 g6 Bg5 Ne2 Na6 Bh3 Qa5 Nec3 Bd2 Qg1+ Kf3 Ra3 Qa4 Rh2 Nh6 g8N Bg5 g7 Nb8 Ne7 Qb4 g8R Be3 Rg7 Qb3+ Ncd5 Na6 Nc3 b1Q Na4 Nb4 Nc6 Rh7 Qg6 Bc5 Na5 Be7 f8B Nc6 f7 Bb4 Bf4 c1B Rb2 Bb7 d8R Rc8 Kd7 Nf5 a8N Be3 Re2 Bb6 Raa2 Bc7 Ndb6 Q3c2 Re3+ Kf2 Bg4 Kg1 Rb2 Qcd1 Rf2 Bf6 Be7 Bg5 f8B Ne5+ Ke8 Nc4 Kd7 Bg2 Bf6 Bf1 Bc3 Be7 Be1 Bg2 Rf7 Bd5 Rg7 Bb8 Rf7 Rc5 Rg7 Bc7 Kc8 Bh4 Rgd7 Ng7 Rde7 Bb8+ Rc7 Be7 d7 Bf7 Nc6 Be6 Rb7 Bc7 Na5 Nd2 Re4 Ba2 Re3 Nc4
5qRB/3N1N1Q/b7/b1nq2p1/1k3BR1/2NqrpPR/1BK1B1qN/b1n4R w - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 a4 exf4 axb5 g5 h5 Ra6 Nh3 Rg6 hxg6 Na6 Ng1 Nb8 e4 Ke7 d4 Kd6 Kd2 h5 b4 f5 g7 c5 g3 f3 b6 c4 b7 f2 b5 f4 b6 c3+ Kc2 a4 Nf3 h4 Rh3 a3 Bb2 a2 Nh2 f3 Qd3 Na6 b8N Qf6 b7 Nc5 Be2 f1Q Nd7 Ne7 g8R Nc6 b8B+ Ke7 e5 Na5 e6 Nab3 Qc4 Ba6 Bf4 Nc1 Qd3 Qe5 Qg6 Kd6 Qh7 Bg7 e7 Bf6 e8R Bd8 Ref8 Ba5 Rb8 Qg2 Rb4 Qf1 Rg7 Re8 Rg8 Re6 Bd2 Qg7 Bf4+ Re5 Rc4 Qf8 Ra4 Kc7 d6+ Kc6 Rc4 Kb5 d5 Re7 Ne5 Qg2 d7 Re6 d8N Re7 Nd7 Re3 Nd2 Qf1 Rb1 a1B d6 Qg2 Ne4 Qf1 Ng4 Qg2 Nf7 Qf1 Rh1 h3 Nh2 Qg2 Nde5 Qf1 d7 Qg2 d8B Qf1 Nhg4 h2 Bf6 Qg2 Bh8 Qf1 Rg1 h1Q Nd7 Qhg2 Nh2 Na2 Rd1 Nc1 Rd6 Qd1+ Kb1 Qd5 Rh1 N1b3 Rh6 c2+ Ka2 c1Q Rh3 Qcd2 Kb1 Nc1 Rd4+ Qc4 Nc3+ Kb4 Re4 Qd5 Kc2 Qf5 Bb8 Qe6 Rg4 Qd5 Bf4 Qcd3+
3b3b/b1bK4/1NpBq3/B1PBRR2/R4n1b/2NNpr2/N1Q2R2/Bb3rk1 w - - 0 1 illegal: No proof kernel
1Brn2k1/2r2R1p/2N2RN1/1nqB1b1r/p2R1BN1/3K2p1/b1PB3N/R3b1Q1 w - - 0 1 illegal: No proof kernel
3nRr2/1NNk1P2/1R1pp2N/B3B3/4bp2/1BnR2Nn/1bb1R1q1/3QKr1B w - - 0 1 illegal: No proof kernel
1B2KN2/1BN1nR1R/NpBb2q1/r1Q4P/R4B1N/rbn1q1R1/3pp3/k2n4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Ke3 Kf6 Kd4 g5 Kd5 e5 h4 g4 a4 b3 c4 g3 f4 d6 c6 b6 h6 e4 a5 b2 a6 e3 a7 g2 c7 e2 h7 Bh6 c5 Bg5 c6 Nh6 Qc2 Rg8 h8B+ Rg7 Na3 b1Q Qc5 Ng4 Nb5 Bd7 c8R Qb2 c7 Nf2 Nf3 g1N Bg2 Nd1 Ra4 Qe7 Rg8 Qc2 c8B Qe3 Nc7 Nh3 Bb7 Bb5 Na6 Nhf2 Rh3 Be8 h5 Bd7 Nh4 Ne4 Rg3 Nc6 Rc8 Qb1 Rc7 Ne7+ Kc4 Re8 a8N Nec3 Bgc6 Qbd3+ Kb4 Be6 Rd7 d5 N8c7 d4 Bd2 Kf7 f6 Qg6 f5 d3 Bc1 Ra8 Bd2 Nd5+ Kb5 Bf4 Bc1 Bd6 Bd2 Qe4 Bf4 Rh7 Bg7 d2 Bf8 Qe3 B8h6 Kg8 f7+ Kh8 Bhg5 Kg7 f8R Bf7 Bh6+ Kf6 Rh8 Rg7 Rh7 Ra7 Bfg5+ Ke5 f6 Be6 f7 Ra8 f8N Rf7 Ra1 Rf3 Bf4+ Ke4 Be5 Kd3 Ra4 Rf5 Bhf4 N5c3+ Kb4 Kc2 Rf7 Kb1 Rh7 Ne4 Kb5 Nc8 Rdf7 Bb3 Bd7 Ra7 Kc6 Nec3 Be8 Kb2 Kd7 Ne7 Kd8 Rg5 Bec6 Rf5 Ke8 Ra8+ Nb8 Ra5 Nba6 Kb1 Rd4 Ra3 Ra4 Ka1 Qa5 Bb4 Qc5 Rg5 Nd5 Rf5 Bb8 Re5 Ndc7 Rg5 Qc4 Bd6 Qb4 Rb5 Qc5 Ra5
1nRq1b2/1pKb1NB1/Q2pNR2/1RBpBP2/4NNr1/2Rq1n2/1r6/1k1r1B2 w - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 exf5 a4 gxh5 c6 d5 cxd5 b3 Qb6 bxa4 Qc7 a5 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 g6 a4 e6 c4 Nc6 h4 Na7 h6 Bc5 a6 Qb6 a5 Bb4 c5 Qd8 c6 Rh7 c7 Ne7 h5 Nec6 Bb2+ Ne5 Rh3 Bc5 Qa4 Rg7 h7 Bf8 h8B Rb8 h6 Qe8 h7 Nb5 a7 Nd4 a8N Ndc6 a6 Ne7 a7 Nc6 Nc3 Qd8 Qa6 Nf3 Nge2 e5+ Kg3 e4 Kf4 e3 Rb1 Ke7 f6+ Kd6 f7 Kc5 Ne4+ Kb4 Rh6 Kb3 Be5+ Kc2 Rb5 Rg8 Bhg7 g5+ Kf5 g4 h8N g3 Nf4 g2 Rf6 Bb4 f8B g1R Bc5 e2 Nf7 e1Q Nb6 Rg4 a8R Qc3 Na4 Kb1 Ra7 Re8 Ra8 Re6 Ra7 Qd3 Ra8 d6 Ra7 Bd7 c8R Qb3 Ra8 Bc3 Rc7 Rc8 Rb8 Qh8 Ra8 Rf8 Rac8 Nb8 Nd3 Ba5 Bb4 Rg8 Bf8 Rg2 Neg5 Qc2 Ba1 Qb3 Nac5 Ne5 f4 Be8 Ba3 Nf3 Rc6 Re3 Be5 Bb4 Ke6 Re1 f5 Rd1 Nge4 R8g4 Ke7 Qc4 Kd8 Bd7 Ne6 Rb2 Kc7 Bd2 Rcc5 Qd4 Rc3 Bh6 Ndf4 Qd3 Bc5 Qg8 Bg7 Qe8 Bh8 Bf8 Bg7 Qd8+
4b1RR/3k2rn/B2nN2K/p1B2npR/2NB1r2/1p1PN2N/1Qq1B3/1R4bn w - - 0 1 illegal: No proof kernel
N1bN4/1n2b2K/kPNp1R2/b1pq2p1/bB4Q1/6nR/RRrB3N/B2B3r w - - 0 1 illegal: No proof kernel
2b5/3p1K1r/Q1NR2r1/1Np2b1n/BRn5/4P2N/B1bRqpR1/bNB2kB1 w - - 0 1 illegal: No proof kernel
2r2n2/3R1p1B/k5n1/pr1Npb1b/1B2R1Q1/K1qNp1R1/P3RB1n/2BN1N2 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 c4 f5 c3 f6 e6 bxc3 Be7 fxe7 d5 e4 dxe4 c4 Kd7 c5 Rh7 Qf3 Rh6 Qd1 Rh8 e8R Kc6 h4 b5 c4 Kb7 d4 a5 Kd2 g5 Kc3 b4+ Kb3 e3 h6 g4 h7 g3 h5 g2 d5 Qd6 h6 Qd7 c6+ Ka7 c5 Ne7 d6 Nf5 c7 Na6 c6 Ng7 Qg4 Nh5 Nc3 Rf8 h8N Nb8 h7 Qd8 d7 Kb6 Nf3 g1N Rh3 Nf4 Bd3 Qg5 d8B Qf6 Ng6 Bb7 c8R+ Ka7 h8B Qg5 c7 Qe5 Nd2 Qe4 Rg3 Ba6 Nd1 Qe5 Nf1 Nf3 Bh4 Nd7 Rcd8 Nh2 c8N+ Kb7 Bg7 Rb8 Nb6 Qc3+ Ka4 b3 Nd5 b2 Ne5 b1B Bh7 Be4 Nd3 Bf5 Be5 Rg8 Bd6 Nf8 Bb4 N4g6 Rb1 Bc4 Rb2 Ka6 Rd7 Rb5 Re2 Bb3+ Ka3 e5 Rc8 Ne6 Rc4 Rc8 Re4 Nef8 Rh3 Qe1 Bf2 Bc2 N1b2 Bd1 Rg3 Qd2 Re1 Bf3 Nd1 Qc2 Re2 Qd2 Qg5 Bh5 Qg4 Qc3+
b1n2q2/Rp4B1/pb2B2R/1N4n1/2N3N1/KQ2P1R1/Nrp3p1/1krR1BBr w - - 0 1 illegal: Other
q4N2/2K2p2/1RR2p2/pR2B3/bNBN2Q1/1R1r1prB/Pn6/qNBn1r1k w - - 0 1 illegal: Other
nR1Q4/3K3N/1B2QN1b/4r2q/N1NP2q1/1pNRN1bq/NR6/k4r2 w - - 0 1 legal: proof: b4 b5 e4 d5 g4 h5 gxh5 f5 exf5 a5 bxa5 c5 a4 b4 c4 Bd7 cxd5 Bb5 axb5 Kf7 b6 Ke8 Bd3 Nd7 b7 Nb6 Bc2 c4 Bb3 cxb3 axb6 Qc7 Ra7 Qd6 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 b8R e6 f4 b2 h4 b3 b7 g4 f6 g3 f5 g2 f7 Ra7 h6 Qe8 h7 Nf6 h5 Ra3 h6 Ra6 Qe2 Qc6 Rh3 Be7 f8N Ra8 Nc3 b1Q Na2 Ng8 f6 Qa6 f7 Qa3 Rd3 Nf6 Nd7 Rf8 h8N Qa6 h7 Qa3 Ng6 Ng8 h8N Ra6 Nge5 Qc2 Nhg6 Bg5 Ng4 Bh6 N6e5 Nf6 Ne3 Ne8 Rb1 Qc8 Rb2 Ra5 Nc5 Nc7 Na4 Na8 Qe1 Rc5 Ne2 g1Q Nec3 Qh2 Qe2 Qh5 Qg4 Qb4+ N5c4+ Kd7 d6 Kc6 d7 e5+ Ke4 Ra5 d8Q Qd7 Ncd1 Kb5 Qe6 Qc8 Kd5 e4+ Qe5 Qch3 Ndc3+ Ka6+ Kc6 Rd5 Ng4 e3 Qe6 e2 Nge3 Rc5+ Kd6 Re5+ Kc6 e1B Kd7+ Qb6 Rd6 Bg3 Rd3 Re8 f8N Rf5 Rb1 Rf1 Nh7 Q5g4 Ba3 Qgh5 Bd6 Qd4 Rb2 Qdg4 Bc5+ Bd6 Ncd5 Kb5 Bb6 Be5 Rc3 Bg3 d4 Ref8 Rd3 R8f5 Rc8 Re5 b8N Re1 Ke7 Rb1 Nd7 Rf1 Rb8 Rg5 Nc1 Re5 Ndc3+ Kb4 Kd6 Bh4 Ndf6 Bg3 Na5 Ka3 N1a2 Rb5+ Ke7 Re5 Kd7 Qd1 Rg2 Qde2 Nc5 Kb2 Nac4+ Ka1 N5a4 Qd1 Rb2 Qdg4
2NbB3/KrB1n2n/BB3Bn1/2Q1r3/RP2Nq2/1kn1N3/6BQ/bB3bn1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 c4 a4 cxd5 Be6 a3 Bh3 Ra2 Bc8 Rb2 Bg7 Rb3 axb3 a4 Bh6 axb5 Bf8 Kf2 Kd7 Ke3 h5 Kd4 f5 e4 c6 g4 f4 d6 Ke6 Kc5 f3 d4 f2 g6 h4 d5+ Kd7 e6+ Ke8 g5 h3 e7 Kd7 e8N h2 b6 b2 b7 Rh3 g7 Rh4 g6 Be7 e5 Rd4 Na3 b1N Ba6 f1N Qh5 Ne3 Nc2 Rd1 Bb2 Nc3 Ne2 Ng2 Ng3 Qc7 Ne3 Bd8 Ne4 Nf6 g8B Nf4 g7 Re1 Bh7 Ng6 g8B Re2 Rc1 h1N Ra1 Nf2 Ra4 Nh3 Qg5 Ng1 Bf7 Ne7 Bh5 Ng6 Bf3 Re1 Bg2 Re2 Ng7 Re1 Ngf5 Re2 Ne7 Re1 Kd4 c5+ Kc4 Nc6 b8Q Bb7 Nc8 Nce7 Qh5 Bc6 Qa7 Rb8 e6+ Ke8 Qh2 Bb5+ Kb3 Bf1 d7+ Kf8 d6 c4+ Ka3 Kg7 Qc5 Kf8 Bg8 Nh7 Bf7 Nce2 Bf6 c3 Kb3 c2 Kc4 c1B Bg8 Ng5 Bh7 Nc3+ Kd4 Re2 Kc4 Bb2 Kd4 Ned5 e7+ Kf7 e8B+ Ke6 Kc4 Ba1 Kd4 Be7 d8B Re1 d7 Qf4 Bc7 Bd8 Qf8 Nde7 Kc5 Ra8 Kb6 Rb8+ Ka7 Re2 Nd1 Kd5 Ne3+ Kc6 Bg8 Nh7 Ba2 Re1 Nd1 Re3 Bb1 Kd5 Bb6 Bb5 Bc7 Kc4 Bb6 Kb3 Bc7 Ng8 Qc5 Bf1 Bb6 N8e7 Bc7 Rg3 Ne3 Rg5 Bb6 Bc7 d8B Re5 Bg5 Ng8 Bdf6 N8e7 Bh6 Bd8 Bf8 Nf5 Bd6 Nfe7 Bdc7 Rb7+
3qr1B1/qQN4q/2B2B2/rB6/2R2b1K/B1QNb3/B1P3r1/nb1r1NBk w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 h4 Kf7 b4 Qb6 g4 Qc6 f5 Qc7 h5 Nc6 Ra3 Qd8 Rf3 Ne5 Rf4 gxf4 g5 Ng6 hxg6+ Ke8 Kf2 d5 b6 Kd7 b5 e5 c6+ Kd6 g7 h5 g6 a5 c7 e4 b7 Ke5 b8B e3+ Kg2 Ke4 Kh3 a4 f7 e2 b6 e1B b7 f3 Qd2 h4 Kg4 d4 Qd1 f2 Nh3 a3 Be3 d3 Qd2 a2 Qc3 a1Q Nf4 d2 Nd3 Bc5 f8B Be6 c8B d1R Bd7 h3 Be5 h2 b8Q Ra5 Bf6 Ne7 g8B Ba2 g7 Bd2 Qb7+ Nc6 Bed4 Bb6 Ba3 Bf4 Bb3 Rg8 Kh4 Re8 g8B Kf3 Rg1 Bc5 Rg4 Ba7 Bbc4 Rd2 Bb5 h1Q+ Bh3 f1R Bg1 Rg2 Nd2+ Ke2 Bde6 Rd1 Nf1 Bb1 Ba2 Nd4 Bc6 Nb3 Bb5 Bc7 Rc4 Be3 Bc6 Bcf4 Bb5 Rg6 Bc6 Qe4 Bg2 Rg7 Bb5 Qee7 Bgc6 Rg2 Bg5 Qe4 f6 Kf3 f7 Bc1 f8N Bce3 Qf6 Qad4 Ne6 Qa7 Qh8 Na1 Bf6 Re2 Bae7 Kg2 Ba3 Kh1 Nc7 Rg2 Qg7 Qee7 Qg3 Qg7 Qe1 Qg6 Qc3 Qh7+
q1B3Q1/B2NBR2/n1rQ1npB/4b3/N1bBB1Nn/1n2P2k/K1qB4/1n6 w - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 h5 a4 f5 axb5 d5 g4 a5 c4 f4 cxd5 Ra6 Ra3 Rb6 Rg3 Rf6 Rg2 Rf5 gxf5 Nd7 Rg6 Nb8 Rg4 hxg4 h4 Ke7 d4 c5 Kd2 g3 Kc2 g2 Kb2 a4 e6 Kf6 d6 a3+ Ka2 f3 b6 g6 e7 f2 e8B c4 h5 c3 d5 c2 e3 Kg5 b5 Ba6 f6 Qd7 f7 Bb7 h6 Ba8 h7 Qc8 b7 Bg7 f8B Qc3 d7 Qf6 d8B Nc6 b8B Nce7 d6 Nc8 d7 Nce7 b6 Nc6 Bd3 f1N b7 Nd2 Nh3+ Kh4 Rf1 g1N Bde7 Ngf3 Nc3 Nb1 Bd2 c1Q Ba7 Nb8 d8Q Na6 b8N Bd5+ Qb3 Qg5 Na4 Be5 Be4 Nf6 Bh6 Bc4 Bd7 Qg2 Bc8 Rg8 h8B Qc2+ Nb2 Kg3 Nf2 Nh4 Ng4 Kh3 Qd6 Rd8 B8g7 Rd7 Rf4 Rc7 Nd7 Rc6 Bh8 Bf1 Qg8 Bc4+ Ka1 a2 Rf5 Nd5 Rf7 Nf6 B8g7 Bf4 Na4 Be5+ Bd4 Qd1 Kb2 a1N Bgf8 Nb3 Ka2 Qgh1 Ba7 Qg2 Bfg7 Qc2+ Nb2 Rb6 Nc5 Nh7 Bd3 Qa8 Nd7 Rc6 Be4 Bf4 Be5 Nf6 Bed4 Qd3 Na4 Be5 Bdc5 Qc3 Bd4 Qc2+
1B2RR2/RQpR1Q2/4n3/rbn3rR/k2q1p2/1bn1B1R1/B4RqP/1N2K3 w - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 h5 axb5 h4 d6 h3 gxh3 Bf5 h4 Bh3 h5 Bc8 f4 Be7 e4 Bf5 d5 Bh7 Na3 Nc6 Nc2 Nb8 Nd4 exd4 e5 Bf6 Bd3 Bf5 Bf1 Bd7 e6 Be5 fxe5 Bc8 b4 a5 e7 Kd7 e8R f5 h6 g5 h7 g4 b6 d3 b7 g3 b5 g2 b6 a4 Nf3 g1N Rf8 f4 Nd2 a3 Nb1 a2 Be3 Nc6 b8B Qe8 b7 Qf7 Qb3 Ne2 Rg1 Qg6 Rg3 Nf6 Qc4 Rg8 h8R Nd8 Rh5 Ne6 Bg2 Nc5 Bh1 Ne8 e6+ Kd8 d7 Nc3 Bg2 Ra5 Bh3 Ke7 d8R Bd7 Bg4 Kd6 e7 Ng7 e8R Qe4 Be6 Qg2 Bf7 Nge6 Qb3 Rg5 Bg8 Ke5 d6 Bb5 d7 Kd6 Qc4 Ng7 Qf7 Kc6 Rf3 Qg4 Rf2 Qg2 Rc8 Nge6 d8R Ba4 Rd5 Kb5 Rcd8 Kb4 R8d7 Bb5 Rh3 Ka4 Rg3 Rg6 Rh5 Rg4 Ba7 Rg5 b8Q Ne2 Kd1 d2 Qb7 Nc3+ Kc2 d1B+ Kd2 Rf5 Ke1 Bb3 Bb8 Rg5 Qg6 Nd8 Rg7 Bc2 Nd2 Nd1 Ne4 Kb4 Qd6 Ra6 Qg6 Ba4 Bb3 Nde6 Nc3 Ra8 Rd7 Ka3 Rc1 a1Q Qf7 Qb2 Ra1+ Kb4 Ne2 Qd4 Nc3 Ka5 Nb1 Nc3 Ra3 Kb4 Ba2 Bb3 Ra6 Ra7 Rb6 Ra5 Ra6 Ka4 Ra8 Nd8 Ra7 Nde6
rN4n1/Q3RNb1/R1p1R3/RRb1Rbq1/3pB3/1Kp1r1kN/6P1/Q3R2n w - - 0 1 illegal: No proof kernel
6Qr/1QBRBp1n/4BbB1/1NRQBn2/2P1K1qk/pq3prp/7B/3B4 w - - 0 1 illegal: No proof kernel
nb3N1B/3b1B2/Q1B4b/b3r1kq/1QKQ1np1/rBB3PB/b3r3/N2B2R1 w - - 0 1 legal: proof: b4 e5 d4 c5 dxc5 b5 a4 h5 axb5 h4 f4 h3 fxe5 Na6 g3 Nb8 Ra6 Bb7 Rf6 Ba6 Rf2 Bc8 Rg2 hxg2 Kd2 Ke7 Kd3 g5 h4 f5 c4 d5 e4 a5 c6 d4 c5 f4 h5 f3 c7 a4 b6 a3 h6 f2 b5 a2 c6 a1B e6 Kf6 e7 Qe8 b7 Qf7 e8B Ra5 e5+ Kg6 b6 Bg4 c8B Nd7 b8Q Bd6 c7 Ra8 e6 Bc3 h7 Nc5+ Kc4 d3 b7 d2 Nf3 g1B Bb2 Ra6 Qa7 Bf4 b8Q Nd3 Be2 f1R Qb4 Ne7 Bc6 Rf2 Na3 Re8 h8B Nd5 e7 Bd7 Nc2 Ra3 Qa6 Bce5 Qa1 d1B Bc3 Be3 B8b7 N3f4 c8B Bb8 Nfd4 Nc7+ Ne6 Na8 Ba4 Qh7 Bbc6 Qh5 Bb3 Rh2 Bef3 Re2 Nf8+ Kh6 Bg4 Bb6 Bh3 Bge3 Rg1 Ba5 Qb2 Bd2 Na1 g4 B8b7 Bc1 Bf3+ Kg5 Bbc6 Re5 Be2 Bc2 Bd1 Bb1 Qd2 Ba2 Qd4 Rd8 e8B Be3 Bf7 Rde8 Bhg2 Bc1 Bf1 Re2 Bfg2 R8e5 Bh3 Ng6 Ba4 Kf5 Bb2 Bh6 Bc3 Kg5 Bc6 Nf4
b2NB3/3b1K1B/4n2b/1p3QN1/NP2nr2/N1b1RrQN/kq1r2N1/1NB2q2 w - - 0 1 legal: proof: b4 d5 e4 f5 exf5 a5 g4 h5 gxh5 a4 c4 Na6 cxd5 Nb8 a3 Ra7 Ra2 Ra8 Rb2 Ra6 Rb3 axb3 a4 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 g5 h4 e5 d4 c5 f4 b5 a5 g4 f6 g3 a6 g2 f7 b2 h6 c4 a7 c3 f5 c2 h5 Qb6 h7 Bb7 f6 Bg7 Kf5 e4 Kg6 e3 f8N e2 h6 e1Q f7 Nd7 Qg4 Be5 Qg3 Nc5 Rh3 Nd3 Ne6 Ba6 f8Q+ Ne7+ Kf7 Qb8 Nf4 Nc5 Bd3 Rg8 h8N Qc8 h7 Qf1 Ng6 Ne6 h8N Bb7 Bf5 Bg7 Ne5 Qc3 Bh7 Rd8 a8B Bc6 Bb7 Bd7 Ba8 Bf6 Bc6 Rg4 Nc4+ Kc7 Be4 Ng8 Nca3 Be5 Bf5 Nf6 Bh7 Ne4 d6+ Kb6 d5 Bd4 Nf3 g1R Ng5 Qd2 Ng6 Bc3 Nh4 Qdf2 Qd3 R1g3 Ng2 Rf3 Qg7 Qd4 Qf6 Rh4 Qf5 Qh8 Rg3 Qd4 Nfh3 Rhf4 Be3 c1B Bd2 Bc8 d7 Bb7 d6 Ba8 Be1 Be3 Bd2 Qh8 Bc1 Qe5 Bb7 Bed2 Bc8 Kc6 Qe3 Kd5 Qe1 Rf2 Re3 R2f3 Qg3 Kd4 Bb7 Qh8 Bc6 Qe5 Nc2+ Kc4 Nca3+ Kb3 Nh4 Re8 d8N Ka2 Nb7 Rd8 d7 Qh8 Ng2 Qe5 Re2 Be3 Nc5 Qh8 Nd2 b1B Na4 Bc2 Re1 Qd4 Ndb1 Qd2 Bd5+ Bb3 Bc4 Qb2 Bd3 Bed2 Re3 Bbd5 Bc2 Bdc6 Bd1 Rc8 d8N Bd7 Bc2 Rc6 Bd3 Rd6 Be2 Bg7 Bd3 Bdc3 Be2 Rd2 Bc4+ Ka1 Bd5 Bh6 Bc6 Bc8 Bd7 Ka2 Be8 Bd7
2r4r/4Q2R/3pQQ1B/2bR1K1b/1NrBp1q1/1bnP2B1/1BnB3B/5krB w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 gxh5 f5 exf5 Qb6 a4 Kd8 Nc3 Qc7 Na2 Qb6 axb5 Qc7 b6 Ke8 b5 Qd8 Nb4 cxb4 Ke2 Kf7 Kf3 Kf6 Kf4 a5 h4 g6 c4 a4 b7 a3 b6 a2 d3 b3 c5 e6 c6 b2 h6 b1B c7 Na6 b8B Ra7 h7 Qe7 b7 Nc5 h5 Bg7 h6 Bc2 Ne2 Nb3 Nc3 Qc5 Bd2 Ra5 Bg2 Ne7 Qf1 e5+ Ke4 g5 f4 g4 Nd5+ Kf7 f6 Kg6 f7 g3 f8Q Qg1 Rb1 a1R Nb4 Nd5 Qe7 R1a4 Rc1 Bd1 Rc5 Bh5 Rh3 Ra6 Bh1 g2 Qf2 Nd4 Qf1 Rf8 h8B Rc6 h7 Nc2 Qf2 Rg8 Qfh4 Kh6 Kf5 Nc3 Rd5 e4 Rh2 Bf8 Bd4 Ra8 h8B Rc4 Rh3 Qd1 Bhe5 g1R Qhf6+ R1g6 Rh4 Rh8 Rh2 Na2 Bb2 Nc3 Ba7 Qf3 b8B Bb7 c8Q Qd1 Qed8 Bc5 Qde7 Bc6 Qg8 Ba4 Qge6 Bb3 Bd4 Qe2 Bf2 Qd1 Bg3 Qf3 Be5 d6 Bd4 Rac8 Bg1 Bf2 Bd4 Qe2 Rh3 Qd1 B1h2 Qg1 Be5 Bc5 Bd4 Qe1 Bgf2 Qe2 Qff7 Bb6 Bh4 Bf3 Qg7+ Kh5 Qge5 Rg7 Kf6+ Rg5 f5 Rg2 B4g3+ Kg4 Rh7 Bc5 Kg6 Qd1 Q5g7 Be2 f6+ Kf3 f7 Rcd8 f8B Rc8 Kf5 Qg1 Bgf2 Bd1 Q6d7 Ke2 Qde6 Kf1 Qgf6 Bh5 Bfh6 Rg6 Bh4 Qg2 Bhe1 Qe2 Bh4 Rg1 B4g3 Qg4#
N4k2/2Qnp1r1/N3B2N/3nNrr1/nN6/q3r1Qp/R1bBPb1N/2N2K1Q w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 f5 g4 Qd6 g6 Qd8 b4 Na6 g5 Nb8 Ra3 Bg7 Rg3 Bf8 Rg4 fxg4 d4 c5 f4 a5 b6 h5 b7 h4 g7 g3 b5 a4 d6 g2 d5 a3 d7+ Kf7 d6 c4 g6+ Kf6 f5 a2 b6 a1R Bd2 c3 Nf3 g1R Nh2 c2 Nc3 c1N Na2 Qe8 d8N Rh7 d7 Rg4 Bh3 Rf4 Ne6 Rd4 d8N Rb1 Kf1 Rd6 Nc6 Nd7 b8N Qf7 b7 Rb5 Ncb4 Rd3 Nc7 Nb3 Nc1 Raa5 Na8 Re3 N8a6 Nbc5 b8Q Qb3 Qc7 Na4 Bg4 h3 Rg1 Nh6 g8Q Qa3 g7 Rbe5 Qgb3 Ng8 Qd3 Kf7 f6 Rg5 Be6+ Ke8 Qdd6 Bb7 Qg3 Be4 Qde1 Bc2 Rh1 Nh6 g8N Ng4 Nh6 Bg7 f7+ Kf8 Qd1 Bd4 Qde1 Kg7 f8N Ngf6 Ng6 Nd5 Ne5 Ba7 Qef2 Rb5 Qfg2 Kf8 Rg1 Ra5 Qh1 Rhg7 Nc4 Re4 Ke1 Rf7 Ncd3 Ne3 Rf1 Raf5 Nce5 Rfg7 Rf3 Qa1+ Nc1 Nd5 Kf1 Bf2 Ra3 Qb2 Ra1 Re3 Ra2 Qa3
2Q1Br1Q/Bpb1N2b/B7/1r1N4/k1p3qr/BbBB1RK1/rPB3n1/3Nn3 w - - 0 1 illegal: No possible last move
knBBq2q/3RqB1n/2R1B2r/2p3QR/1BQ5/2b3p1/1qP1BNr1/1bB4K w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 g4 h6 g6 Ba3 Nc3 Bc5 Ne4 Bf8 g5 h5 Nf2 Ba6 Ng4 hxg4 Bh3 Bb7 Bf1 Bc8 Kf2 c5 Kg2 a5 h4 f5 e4 d5 b4 Kd7 g7 Kc7 e6 Kb7 e7 g3 e8B a4 e5 f4 h5 a3 b6 d4 b5 d3 h6 d2 g6 a2 e6 Qf6 e7 Ra5 h7 Ra3 Bf7 Qb2 e8B Bg4 Be2 Bh5 Qf1 d1Q Nh3 Bg4 Nf2 Rf3 Rh5 Qbd4 Bd7 Ka8 b7+ Ka7 Bc8 Qb2 Kh1 Nf6 g8Q Qd7 g7 Qe7 Rb1 a1Q Bfe6 Nc6 b8B+ Ka8 Bc7 Nb8 b6 Bh3 Bf7 Be6 Bd8 Ba2 Bfe6 Rd3 Bf7 f3 b7+ Ka7 Bfe6 Rd2 Bf7 Qe8 Bfe6 Bd6 Bf7 Be5 Bfe6 Qc3 Rb6 Qcb2 Rc6 Bb1 Bf7 Bc3 Bfe6 Nbd7 b8R Qe7 Rb7+ Ka8 Rbc7 Nb8 Rd7 Qa4 Ba5 Qe4 Bb4 Qg6 Qd8 Qgf7 g8B Qfe8 Bb5 Re2 Bgf7 Rd2 Qc4 Re2 Ne4 Rg2 Bba6 f2 Bb5 Rf8 h8B Nh7 Bf6 Rg8 Bh4 Rg6 Bf6 Qh8 Qg8 Qe8 Bd8 Rh6 Qg5 Qe7 Qd4 Qee8 Be2 f1Q+ Qg1 Qb3 Nf2 Qe1 Qf1 Qb2 B2g4 Qe4 Qc4 Qee5 Bf3 Qd6 Be2 Qde7
n3RBqk/pr2QpRn/5B2/P2p3R/b2b3B/1B1Q1r2/1KB2BBq/2N1q3 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 f4 Bg7 fxg5 Bf8 g4 h6 g6 Qg5 Nc3 Qe7 Ne4 Qd8 g5 h5 Nf2 Qf6 Ng4 hxg4 Qd4 Qe7 Qd1 Qd8 Kd2 c5 Kc2 d5 a4 g3 b4 c4 h4 g2 e4 c3 g7 Bg4 a5 Qc8 g6 Qc6 h5 Qd7 h6 Bf5 e6 Be7 b6 Bd6 b5 Qc6 e7 Na6 b7 Bf4 b8B Qb6 h7 Qc7 b6 Be5 b7 Nh6 g8Q+ Kd7 e8B+ Ke7 g7 Kf6 Bg5+ Kg6 Bh4 Qc5 Qd3 Bf6 e5 Qc6 e6 Qc4 e7 Qc7 Ba4 Bg5 e8R Be3 Bb3 Ng4 Qf8 Bd4 Qe7 Qh2 Bd6 Rb8 Ne2 g1Q Bg2 Nf6 Nc1 Nc7 Bdg3 Na8 Bf2 Rg8 h8B Kh7 Kb1 c2+ Ka2 Rd8 b8B Rd7 Bd6 Rb7 Ka3 Bb6 Kb2 Bd4+ Qc3 Bd7 Ra4 Bc5 Rg4 Ba4 Rg6 Bb6 Qd3 Qe1 Rb8 Rc8 Bdc5 Rc6 Re8 Qeg1 Bb4 Rc3 Bd6 Bd4 Rg3+ Kh6 g8B Nh7 B8f6 Qe1 Rg7 Qeg1 Qe5 Qe1 Bf8 Qeg1 Qe7 Qe1 Ne2 c1Q+ Ka2 Qe3 Kb2 Qg5 Nc1 Qg4 Qc4 Rf3+ Qc3 Ng5 Bh7 Qc8 Bc2 Qg4 Rg6+ Kh7 Rg7+ Kh8 Ka3 Qf5 Qd3 Qh7 Ka2 Qg8 Ka3 Bb6 Kb2 Nh7 Bhg3 Qhg1 Rh5 Qh2 Bgh4 Bd4+
N3Q2B/b3N3/nQQp1nrQ/q4BQp/b3R1p1/Q1b1rkPB/3K1p2/6Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1N3n2/1n1r4/QB1r3B/2NrQB1b/QrB2Kn1/1P2rRq1/3Bb3/3B1Nk1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 g4 Be6 f4 Bf7 h4 Bh6 f5 Nc6 Ra4 Bg7 Rf4 gxf4 g5 Be6 g6 Bh6 Qe2 Nb8 Qd1 Bg5 hxg5 Bc8 Kf2 Kd7 Kf3 Kd6 d4 c5 f7 a5 f8Q h5 b3 h4 g7 c4 f6 a4 b6 c3 g6 h3 f7 a3 b7 a2 Bd3 a1R Bf5 h2 Ke4 f3 Qe2 c2 Bg5 c1N Qb2 f2 Nd2 f1B Kf4 Nh6 g8B R8a5 g7 Nd7 b8N R1a4 Nh3 Ng4 Nf2 Qc7 Bgh7 Rb4 g8B Be2 Qe8 Nf8 Rf1 h1R Qa4 Rh6 Nd3 e6 Bhg6 R8h7 Rf3 Ba6 Nc5 e5+ Ke4 Bb7 Nf1 Nd3 Bh5 Bc6 Bd2 Be8 Bc8 Re6 Kf5 e4 Qba3 Nde5 Kf4 e3 Qa1 Rg6 Bf5 Nc6 Qc3 Nd8 Qd3 Nb7 Qa6+ Ke7+ d6+ Kf6 Rf2 Bc4 d5 e2 Rf3 e1R Bd3 Ne5 Bf5 Re3 d7+ Qd6 Rh3 Rab5 Bd1 Rgh6 Rf3 Be2+ Kg3 Kg5 d8Q+ Rf6 Qe7 Ng4+ Qe5 Qc7 d6 Ra5 d7 Rd6 Nd3 Rad5 d8B+ Kh5 Nc5 Rg7 Ne4 Qc3 Bb6 Qd3 Kf4 Kh4 Rf2 Kh3 Rf3+ Kg2 Bfh7 Rbb5 Bf5 Kg1 Nc5 Rb4+ Be4 Nh7 f8B Rgd7 Bh6 Nf8 Be6 Bh5 Bf7 Rdd4 Bc4 R4d5 Bf5 Qc3 Bc1 Qe1 Bd2 Qg3+
NnQ2R1n/2q4k/q1R1qK2/4NR2/NbPQ4/2B1bb2/4r1Q1/N3rNqN w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 f4 g6 g5 Qc7 Bh3 Qb6 fxg6 Qd8 Bg4 hxg4 f5 Bb7 Nd2 Ba6 Nb1 Bc8 Kf2 e5 Ke3 a5 Ke4 d6 b4 g3 c4 g2 h4 a4 h5 a3 c6 a2 b6 Ra3 b5 Qc7 b7 Ra7 b6 Ra8 g7 Kf7 g6+ Kf6 h6 Ra7 h7 Be7 Nd2 Ra3 Rh5 Rc3 Ne2 g1Q Bb2 Bd8 Nf1 Be6 Neg3 Qd7 c7 Qf2 c8N Na6 b8N Ne7 g8Q Qb7+ Nc6 Nb8 g7 Qg1 Qd4 Ng6 Nh1 Rc2 Bc3 Qc7 b7 Bf7 Re1 a1Q Nb4 Qa6 Nb6 Rg2 Re3 Re2 Na8 Be6 Nc2 d5+ Kf3 Be7 Qc8 Bb4 Na1 Re8 g8Q Nh8 Qg2 Bg8 Kg4 Kg7 Kg5 Qe6 Qb6 d4 Reh3 d3 Qd4 d2 f6+ Kf8 f7 Kg7 f8N d1Q Nd7 Qa4 Ndb6 Qa6 Na4 Bf7 Rh6 Bh5 Rf3 Bc5 Rhf6 e4 R3f5 e3 Rh6+ Qee5 Rb6 Bf3 Rc6 Re1 Nh2 e2 Nf1 Ng6 h8N Kh7 Nf7 Qe6 Ne5 Nh8 Qd3 Bf2 Qd4 Be3+ Rf4 Nd7 b8R Re7 Rb5 Nb8 Rbc5 Rb1 Rd5 e1B Rd8 B1d2 Rf8 Re1 Rf5 Bc1 Rf8 Ba3 Rf5 Bb4 Rf8 Bf2 R4f5 Be3+ Qf4 Rd7 N8b6 Bf2 Na8 Rd2 Qe4 Rde2 Qd4 Qg8+ Kf6 Be3 Qcd8 Qd5 Qc8 Qe6+
r1Q1r3/N1n1Q2b/7q/1R4rb/k2P1n1p/NRRRR3/1K2NQR1/Br2r3 w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 g6 a4 Bb7 axb5 Bc8 f6 Kd7 f7 Bg7 Nh3 Bh6 Ng1 Bf8 g4 Bg7 h4 Bb7 f4 Bf6 f5 Ba6 g5 Qc8 Bd3 Bc3 f6 Qd8 Bc2 Be5 Bf5+ gxf5 g6 Bf4 Ra3 Be3 Ra1 Bg5 hxg5 Bc8 f8R e5 d4 c5 Kd2 a5 Kc3 h5 b4 h4 f7 c4 b6 a4 g7 a3 g6 e4 b5 a2 d6 e3 b7 e2 b6 Kc6 d7 Kb5 Qe1 f4 Qf2 e1R Rh3 f3 Na3+ Ka4 Ne2 Ra6 Re8 Rg1 f8Q Rg5 Kb2 Nf6 g8Q Nd5 g7 Nf4 Re3 Ra8 Qe7 Qf8 d8N Na6 b8R Bg4 b7 Nc7 Nc6 Bh5 Na7 Qf6 Qgf8 Qh6 Qc8 Re8 Rb1 a1R g8R Re5 Bd2 Rg5 Rd1 Rc1 Ba5 Ra1 Rdd3 Re1 Bc3 Rb1+ Kc2 Re1 Ba1 c3 Rg3 Rb1 Rg6 Re1 Rg2 Rb1 Rc6 Re1 Qf1 f2 Qg1 f1B Qf2 Ka5 Kb3 c2 Rcc3 c1R Kb2 Ka4 Nc6 Raa5 Na7 Ra6 Ra8 Rcd1 b8R Raa5 Rbb3 Rb1+ Kc2 Ra6 Rab8 Raa5 R8b5 Ra6 Rh2 Bh3 Rg2 Bf5 Bb2 Bh7 Ba1 Rbc1+ Kb2 Rcd1 Nc6 Ra8 Na7 Rb1+
3q2b1/1Q1K1NB1/1R3B1P/b1b1N1b1/3B4/4Bn1r/pQNbBn1k/B1Qq4 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nc6 f6 Rb8 f7+ Kd7 axb3 Ra8 b4 Nb8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 b4 h5 f5 a5 g5 Ra7 Ra3 Ra8 Rg3 Ra6 Rg4 Rf6 gxf6 hxg4 Ke2 Kd6 Ke3 Ke5 h4 c5 d4+ Kd6 Kf4 g6 b6 a4 b5 a3 h5 e6 h6 a2 b7 c4 b6 g3 Be2 c3 Nf3 c2 Be3 c1B Na3 g2 Ne5 g1B Nc2 Be7 f8B Bf2 f7 Nf6 Bg7 Bd2 f8B Rg8 Qc1 Ne4 f6 Nd7 f7 g5+ Kg4 Ba5 Bh8 Bfe1 Bfg7 Bed2 Re1 Bf6 f8B+ Be7 Bf6 Rg6 Bf8g7 Nf2+ Kh5 g4 b8Q+ Qc7 b7 g3 Qa7 g2 b8Q g1B Qbb2 Qd8 Qab7 Rg3 Kh4 Rh3+ Kg5 Nf8 Rd1 Nh7+ Kg6 Bd7 Kf7 Ba4 Rf1 Bb3 Re1 Qb6 Ke8 Ng5 Rd1 Nf3 Rf1 Bh2 Rg1 Bf4 Rg6 Bg5 Qa8 Kc7 Qa6 Bc5 d6+ Kb8 d7 Kc7 d8N Kd6 d5 Bc4 Ng4 e5 Qb7 e4 Bed4 e3 Ne5 Bcb4 Bd3 e2 Be3 e1Q Be2 Qd4 Ndf7+ Kc5 d6 Qd1 d7 Be6 Nd6 Bg8 d8B Ba3 Kd7 B3b4 Qc7+ Kd5 Ndf7 Bc5 Qa7 Qd3 Bb6 Ke4+ Bd4 Kf4 Qb7 Bd6 Be3+ Kg3 Bbd4 Bc5 Bd8 Bdb4 Rb6 Bd2 Bdf6 Kh2 Kc7 Nh4 Bc3 Bf8 Qb5 Kg3 Ng6 Qf1 Be7 Nf3 Bge5+ Kg2 Ba1 Bdc3 Bhg7 Bcb4 Be7f6 Bd2 Qbb2 Bc5 Kc8 Qd5 B5d4 Qd1 Nge5 Kh2 Kc7 Qd8+ Kc6 Qb8 Kd7 Qd8+
NBN1BBq1/5p1N/b4q1n/2rQ4/5QrK/4B1nQ/1P2p1B1/1knqR2B w - - 0 1 legal: proof: c4 b5 f4 g5 fxg5 d5 cxd5 b4 d4 b3 e3 Qd7 d6 Qh3 axb3 Qe6 b4 Qd7 b5 Qd8 g4 h5 g6 Bd7 d5 Bf5 g5 Bc8 Ra4 Bg7 Rg4 Bd4 exd4 hxg4 Kf2 Kd7 Kg3 a5 h4 e5 b6 c5 h5 e4 h6 e3 g7 e2 h7 c4 g6 a4 b7 a3 Nf3 a2 Nbd2 a1N Bg2 c3 Ne4 c2 Qd2 Qe8 Kh4 g3 Nfg5 Ra5 Re1 Ra3 Qf4 Nc6 b8B Rf3 Be3 Kd8 d7 Ke7 d8N c1Q d6+ Kd7 d5 Nc2 Nde6 N6d4 Nc7 Rf1 Na8 Nh6 Bh1 Rf8 h8Q g2 g8B g1Q g7 Na1 Bh7 Qc6 g8B Ba6 Bg6 Qc3 Nh7 Nab3 Bh5 Rf2 B5f3 Nc1 Bfg2 Qec8 Qfe5 Rf5 Qf4 Ke8 d7+ Ke7 d6+ Ke6 d8Q Kd5 d7 Kc4 Nd6+ Kd3 Qdg5 Kc2 d8B Rc5 Qd5 Kb1 Be7 Rd8 Bf8 Ndf5+ Kh3 Ng3+ Kh4 Qd7 Nc8 Qa4 Ng5 Qac2 Bh7 Qf6 Bhe4 Rd7 Bef3 Qd1 Bg4 Re7 Bd7 Re5 Be8 Rf5 Kh3 Re5 Nh7 Rg5 Kh4 Qf1 Bd4 Qg6 Be3 Qg8 Qhf6 Qf3 Qfe6 Qf1 Qh3 Qf3 Qfc4 Qf6 Qf4 Rg4#
Q1N2kBK/4N2Q/8/1p1RNBq1/P1p2p1B/1rNr4/n2NNn1b/Q2b3b w - - 0 1 legal: proof: b4 a5 bxa5 d5 a4 h5 g4 e5 gxh5 g5 f4 d4 fxe5 d3 cxd3 Ne7 d4 Be6 d5 Bc8 Ra3 Ng8 Rf3 Qd7 Rf5 Qd8 Rf4 gxf4 Kf2 b5 Kf3 c5 Ke4 f6 h4 f3 d4 f2 a6 c4 a7 Rh7 h6 Re7 h7 Nc6 h8Q Qb6 h5 Rg7 h6 Rg6 d6 Rg2 e6 Qd8 Kf5 Ne5 e4 Bg7 d5 Rh2 h7 Bd7 Nf3 Qa5 Bd3 f1B Nfd2 Rh4 Nc3 Ng4 Kg6 f5 e5 Rc8 a8Q Qa6 e7 Rh3 Qe1 Rg3 Rh5 Bh6 Qg7 Qb6 h8N N8f6 Qh7 Qe3 Nf7 Bg5 Kg7 Bg2 Kh8 Bf3 Ba3 f4 Bf5 Qe2 Qa1 Bh1 Bc5 Qg2 Bf2 Rd3 Bh4 Bh6 Rg5 Be6 Rh5 Kd7+ e8N Rb8 Rg5 Kc8 Rh5 Bd7 e6 Qe4 Ne5 Kd8 Rg5 Bc6 d7 Qg2 Nd6 Ne4 Nc8 Ngf2 Rh5+ Bg5 e7+ Kc7 e8B Kd8 Bf7 Rg3 Nd6 Ke7+ d8N Kf8 Nc8 Be7 Rg5 Bc5 d6 Be8 Bd5 Bh5 d7 Bd1 Ndc6 Re3 Rh5 Qg5 d8N Rb6 Nd4 Rd6 Bde6 Rd7 Nde2 Rdd3 Bg8 Rh3 Ncb1 Nc3 Ndc6 Na2 N6e7 Rb3 Nbc3 Rd3 Ndf3 Ng4 Nd2 Bg1 Rh6 Nf2 Rd6 Bh2 Rd4 Qg2 Rd5 Qg5
3N2QN/R2Qp2R/qP1Qnr2/QbN1Q3/b2pK1pb/2b5/2BRQ3/5r1k w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 Bh6 d4 Bf8 dxc5 d4 g4 h6 g6 Bf5 g5 Nc6 g7 Bc8 g6 Nb4 Bg5 Nd5 exd5 hxg5 Kd2 Kd7 Kd3 a5 b4 f5 c4 g4 h4 f4 c6+ Kd6 b6 Ke5 b7 a4 b8Q+ Qc7 h5 a3 c5 f3 h6 Kf4 h7 Kg3 d6 f2 b5 a2 d7 Ra3+ Ke4 Ra4 d8Q Bd7 b6 Ra3 Nd2 Ra6 Bd3 Kg2 Nb3 f1B Qe2+ Kg3 Nf3 Bg2 Bc2 Qd6 c7 Ra7 c8R Rc7 c6 Qa3 Nc5 Nh6 g8Q Nf5 g7 Bf1 Ne5 Qa6 Qd5 Rg8 Rd1 a1B h8N Bc3 Rh7 Ra7 c7 Ba4 Q8d6 Ra8 Qd3+ Kg2 Nc6 Be2 Qe3 Beb5 Rd8 Ra7 c8Q Rd7 Q6e5 Rd6 Rd7 Rg6 Nd8 Rf6 Ng6 Rh8 g8Q Bh6 Rd2+ Kh1 Qbd6 Ng7 Ra7 Ne6 Qe2 Rf1 Qcd7 Rf6 Nh4 Bg5 Ng6+ Bh4 Qa2 Bb3 Qa5 B3a4 Rg7 Rh5 Nh8 Rhf5 Rh7 Rf1
4BbK1/q1rb3B/2NN2Q1/b1N3QB/r2Qp2B/1Bqn1Rr1/n3P3/Bk3n2 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 h5 g4 Rh6 g6 Rh8 b4 Rh7 g5 Rh8 Ra3 Ba6 Rg3 Bc8 Rg4 hxg4 Kd2 f5 Kd3 a5 Kd4 e5+ Kd5 Ke7 c4 f4 h4 f3 g7 a4 h5 g3 h6 e4 b6 d6 g6 Kf6 b5 Kf5 c6 g2 c7 f2 b7 a3 h7 a2 b6 a1N c5 Qd7 c6 Ra3 Nc3 Qd8 Qd4 Nd7 b8Q Ra2 b7 Qe8 Nf3 g1B Bg5 Ra4 Rh3 Ne5 Bh4 Nh6 g8B Nd3 g7 Nc2 Bg2 f1R Ne5 Bd7 c8N Qe7 c7 Kf4 Nc6 Rc1 Bf3 Nf5 Bh5 Ng3 Be6 Bh2 g8B Nf1 Qba7 Bg3 b8Q Be1 Qac5 Qf6 Bgf7 Rg8 h8B Rg3 Be8 Bd2 Qbb6 Ncb4+ Kc4 Na2+ Kd5 Be1 Bg8 Bd2 Bh7 Qg7 Nb5 Ba5 Nc3 Rc4 Na4 Rb4 Qdc4 Qc3 Q4d4 Rc4 Qcb5 Rc2 Nc5 Ra4 Qe5+ Ke3 Qd4+ Kd2 Be5 Rg2 Rf3 Kc1 Bg7 Bh3 Q6a6 Rg4 Ke6 d5 Kf7 Rg3 Nd6 Bd7 Nb4 Kb1 c8B Rc1 Kg8 Rc2 Qe5 d4 Nc6+ Nb2 Qc4 d3 Qcd4 d2 Qg5 d1Q Qb6 Qdd2 Ba6 Qdd3 Bc4 Qe3 Bb3 Nd3 Qc7 Bc8 Qf7 Bd7 Qfg6 Qf4 Nc8 Qb8 Nd6 Qa7 Qb4 Qd2 Ba1 Qc3 Qd4 Rb2 Bd5 Rb7 Bb3 Rc7
K1kb4/Q1q1Q1BN/2N1Nr2/1bnR2pb/q4N2/3rQ1P1/Nr1n1N2/3rB2B w - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 b5 f4 h5 fxe5 h4 a4 h3 axb5 Be7 g3 Bd6 Ra6 Be7 Rf6 Bc5 Rf2 Bf8 Rg2 hxg2 Kf2 Kd7 Ke3 g5 Kd4 a5 h4 f5 e4 f4 e6+ Ke8 e7 Kd7 Kc5 c6 d4 a4 b6 f3 d6 f2 e8N a3 h5 a2 e5 a1Q h6 Qf6 b5 Ne7 e6+ Kd8 h7 Qa7 d7 Qh6 d5 Qf6 Nc3 Qg7 Qb3 Qf6 Bd2 Qe5 Be1 Qb7 Na2 Qa6 b7 Qf4 b6 Bg7 Nh3 g1R Nf6 Qaa4 Bg2 f1B Nf2 Qc7 Qe3 Rf8 h8B Ra6 Nh7 Bf6 Bg7 Ng8 Rh4 Ra8 Rd4 Bb5 Bh1 Rg2 Rd1 Qe4 Rd4 Ra3 Rd3 Qa4 Rd1 Ke7 d8N Rd3 d6+ Ke8 e7 Bg4 Rd2 Kd7 Ne6 Bh5 Nf4 Rh2 e8N Bd8 Rd1 Rf6 Rd2 Qc8 Nc7 Rg2 Nce6 Qc7 Ne4 Rf2 Rd1 Rb2 Nf2 Nh6 Rd2 Ng4 Rd1 Ne5 Rd2 Ke8 d7+ Ke7 Rd1 Nc4 Rd2 Ra3 Rd5 Na6+ Kd4 Rab3 b8Q Nc5 b7 Ra3 Qa7 Rab3 Rd6 Nd2+ Ke5 Rd3 b8Q Na6 Qbb7 c5 Qbe4 c4 Qeb7 Qc5+ Rd5 c3 Qc7 c2 Qcb7 Ba5 d8N+ Ke8 Qc7 c1R Nc6 Rd1 Qcb7 Qcc4 Kd6 Bd8 Qc7 Nc5 Qcb7 Be7+ Kc7 Bd8+ Kb8 Qc3 Ka8 Qca5 Rf5 Qc7 Re5 Kd7 Rf5 Bc4 Qb4 Ba6 Rd5+ Kc8 Qbe4 Bb5 Qb4 Nce4 Qe7 Nc5
3q4/1Kp2Q1q/5N1k/3Q1nRp/7P/R1rBBQbb/1Rn1Q1n1/1QQBqr2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 Kd7 f6 Ke8 f5 Kd7 Nc3 Ke8 Nce2 Nd7 Nf4 gxf4 Ra6 Nb8 Ra5 Ba6 Ra1 Bc8 Ke2 Kf7 Kf3 e5 Ke4 a5 d4 h5 h4 f3 g4 a4 b4 f2 b6 a3 b7 a2 d6 Be6 b5 Bd7 Kd5 e4 g5 e3 b6 e2 g6+ Ke8 g7 Kf7 Nf3 e1Q Be3 Ra4 Bd3 f1Q Ng5+ Ke8 Qe2 Be7 Nh7 Kf7 Rg1 Qd1 Rg5 Nh6 g8B+ Ke8 Be6 Qc8 f7+ Kd8 f8Q+ Be8 d7 Qc2 f6 Qf2 f7 Bd6 Nf6 Nc6 b8R Ra3 b7 Na5 Bg4 Nc4 Kc6 Rc3 d5 Bg3 Qc5 Rg8 f8Q Nf5 Qf7 Qe1 Qa3 Rg6 Qc1 Qb1 Qeb2 Rg8 Bd1 Rf8 Qe2 Qc2 Ra8 Qb8 Rb1 a1N Rb2 Qb1 Ra3 Nc2 Qh7 Qc8 b8Q Bf7 Qa8 Ke7 d6+ Ke6 Qg7 Qd8 Kb7 Bg8 Qf7+ Ke5 Bg1+ N4e3 Qb8 Bh7 Qf3 Ng2 Be3 Qe8 d8Q Qe7 Qd7 Qd8 Qe2 Bg6 Qb3 Bf7 Qc6 Be6 Qcf3 Bd7 Qa4 Ke6 Qaf4 Kf7 Qc4+ Be6 d7 Ng7 Rf5 Kg6 Rg5+ Kh6 Qa2 Bh3 Qf7 Qe8 d8Q Nf5 Qdd5 Qd8 Qa7 Qa2 Qad4 Qc4 Qb6 Qe4 Qd7 Qee7 Qbb3 Qh7 Q7f7 Re8 Qa2 Re4 Qab1 Rf4 Qg4 Rf2 Qgf3 Rf1
1B1rRQN1/qr5R/N6p/Nq1r1QRn/2KN4/q1bN1b2/k2p3P/2Q3Nn w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 d4 Kd7 e3 e6 d6 Na6 d5 Qe7 Bc4 Nb8 Ba2 Qd8 Bc4 Ke8 d7+ Ke7 Ba2 Kd6 Bb3 Ke5 d6 Kf5 Bd5 exd5 Bd2 Ke5 Bc1 Ke6 Kd2 c5 Kd3 a5 b4 f5 g4 f4 b6 h6 e4 a4 g6 d4 b7 a3 g7 f3 g5 f2 g6 f1R e5 Kd5 b5 a2 b6 Rf2 e6 Rb2 e7 Ra4 Nd2 Qc7 d8Q Rb5 d7 Rb2 Ne4 Na6 b8N Qc6 b7 Nf6 Ne2 Ra5 Bf4 Nh5 Nf2 Qb6 g8R Bg7 e8Q Rab5 Rc1 a1Q Nc6 Qaa5 b8N Qa7 Qee7 Bb7 Rg1 Rb1 Qf6 c4+ Kc2 c3 Kd3 c2 Qf5+ Be5 g7 Ba8 Rg5 Nb4+ Kd2 Kc4 Na6 Kb3 Ng1 Bf6 Bb8 d3 Qc8 Rb2 d8N Ka2 Ne6 Rc5 Ke3 d2 Ke2 Q5b6 Na5 Nd3 Rb1 Bc3 Nd4 c1Q Qd8 Qc2 Qc1 Qa4 Rf8 Qa3 Qdf6 Rh7 g8N Rd7 Re8 Rd8 Qf8 Bf3+ Ke3 Rbb5 Rb4 Qbb7 Rc4 Rcd5 Rc7 Rb1 Rh7 Qbb3 Ne4 Nf2 Nec5 Nh1 Kd3 Qbb7 Kc4 Qd7 Nd3 Rb7 Re1 Qe8 Re5 Qd7 Re8 Qb5+
1n2N1RR/2rR2bb/k2n1p1p/5PRQ/1R2p1N1/3bK2Q/2RQ4/1qr1BN1q w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 h4 Bc8 hxg5 c6 b4 Na6 b6 Qc7 b7 Qd8 b5 Nb8 b6 Qc7 Be2 Qd8 Bb5 cxb5 Ke2 Kd7 f4 e5 c4 a5 d4 b4 g4 a4 f5 a3 c5 a2 d6 Kc6 d5+ Kb5 d7 f6 g6 e4 c6 b3 d6 b2 g5 Ka6 c7 Bg7 Nd2 b1B Nf1 Qf8 d8R Qe8 d7 Kb5 Bd2 Bf8 g7 Qh5+ Ke3 Nc6 b8Q Nb4 g6 Nh6 g8R Nf7 g7 Ka6 b7 Ng5 Nh3 Ra7 Nf2 Qg4 Be1 Qh5 Ng4 Bd3 Rc1 a1Q Rc2 Nc6 Qf3 Qf7 Qh3 Qfa2 Qa8 Nf7 b8R Q2b1 Rb4 Bb7 c8N Nb8 Nd6 Bd5 Ne8 Nd6 Rg1 h6 Rg3 Rh7 Rh8 Be6 g8R Bg7 Qd5 Rb7 Qb3 Rc7 Qh5 Rc8 Qc3 Bf7 Qd2 Bg6 Qdh2 Bf8 Q2h3 Re7 Rgg2 Bh7 Rg5 Rc7 Rgd2 Re5 Rc8 Rec5 d8Q Nb5 Qd4 Bg7 Rd8 Rc4 Rg2 Nd6 Rd7 Bf8 Rgg8 Bg7 Qc3 R4c5 Qd2 R5c6 Ne5 Rc5 Rg5 Rc4 Ng4 Rc3 Rcb2 Rc1 Rc2 Qb3 Nfh2 Rb1 Bh4 Rg1 Bf2 Qf1 Bh4 Qbb1 Bf2 Qg2 Bg3 Rd1 Nf1 Qh1 Be1 Rc1
RB2qN1r/5pQ1/1nnKQ3/Q2r2p1/B2BNq2/3kpN2/2bb1bP1/QQ2Q3 w - - 0 1 illegal: No proof kernel
QBqRN3/1R1Q3p/4RN1Q/1rn1N2K/rk4b1/ppNq3P/7N/nN3rb1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 b4 c6 e3 Bd6 b6 Bc5 b5 Ne7 b7 Ng8 b6 Bf8 Bb5 cxb5 Ke2 Ke7 Kf3 d5 c4 f5 g4 a5 g6 f4 h3 d4 e4 b4 g5 b3 e6 Kd6 Kg4 Kc5 e5 d3 g7 a4 g6 d2 Ne2 f3 Re1 f2 Kh5 f1Q e7 a3 e8N Qf2 e6 Qdf6 e7 Nc6 b8N Qe3 b7 Be6 Nec3 Bf5 Nd7+ Kb4 b8R+ Ka5 c5 Be4 Rb7 Bh1 Ne5 Qd6 Nf6 Qb8 e8N Nd4 c6 Qc8 c7 Be4 Nfg4 Bc5 Nh2 Qd3 Qe2 d1R Qd2 Ra7 Qh6 Bf5 Bf4 Nc2 Ra2 Na1 Rd2 Bg1 Ree2 Qc4 Rd8 Qd3 Re4 Rf1 Bg3 Ne7 g8N Nc6 g7 Nb8 Ngf6 Na6 g8Q Nc5 Qe6 Rg8 Qd7 Rg4 Re1 Rb4 Bf4 Rb5 Bg3 Qb8 c8Q Kb4 Bf4 Qc7 Qa8 Ra6 Neg4 Ra4 Re6 Qc6 Bb8 Qc8 Ne5 Bg4+
1n1N3q/N1pp1BQ1/Q3Q3/1RnN1K2/1R2RRpn/R4b1r/R2P2k1/1rn3b1 w - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 b5 gxh5 Nh6 c4 Ng8 Ba3 Ba6 cxb5 Kf7 b6 Bc8 b5 Ke8 Bb4 axb4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 a4 Kh4 f4 g5 a5 e5 a6 g4 a7 b3 h6 b2 f6 Be7 h7 Bf8 f7 Bg7 f8R Nh6 f5 Nf7 b7 Qg5 b6 Qf6 Qb3 Rg8 h8N Nd8 Bc4 Ndc6 Re8 Qe7 f6 Nb4 f7 Qf6 f8R Qc6+ Kf5 e4 Ra3 e3 Bf7 e2 Nf3+ Kh3 Qe6 e1N Nc3 b1N Nd5 Ba1 Nd4+ Bc3 Nb5 Kg2 h4 Qd6 h5 Ned3 h6 Ne5 h7 Nbd3 Ra2 Bb4 Rh3 Nc5 Rha3 Ng6 Re7 Qh2 Ree8 Nc6 b8R Nc3 Rb7 Rb8 a8Q Qh6 Qa6 Ne2 Na7 Nc1 Re7 Ra8 Rb8 Bc3 b7 Bd4 Qd6 Bg1 Re4 Rg7 Qe6 Qh1 Be8 Qh3 Nf7 Qh4 h8Q Rh7 Qc3 Qd8 Qb2 Rh3 Qg7 Qh4 Nd8 Qh8 Nb5 Ra7 Bf7 Ra8 Qa4 Ra5 Na7 Rb5 Qa6 Rb2 Ra8 Rb4 b8R Rb1 Rbb4 Bb7 Rb8 Ba8 R8b5 Nb8 Re8 Bb7 Rf4 Bc6 Ne7 Bf3 Nd5 Rg3 Qec6 Rh3 Ree4 N5d3 Qd6 Nc5 Qe6 Nh4+
BB6/B3RBk1/1pNn1Rb1/nP4br/5rqB/p2bNRB1/2KBN2q/5n2 w - - 0 1 illegal: No possible last move, all moves rejected
N2K1B2/rk2b2n/8/1P1q2Q1/1Rn1R1Q1/1q2q1QN/1N2Q3/rQ1N3N w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 g4 h5 gxh5 f5 exf5 a6 b3 a5 d4 e5 d6 e4 Bg2 e3 Bd5 e2 b4 c6 b6 cxd5 Rxa5 Be6 b5 Bf7 Ra1 Be6 Kd2 e1B+ Ke2 Bb4 Kf1 Bc5 dxc5 Bc8 Ke1 Ba6 Rxa6 Qg5 Ra1 Qd8 Ke2 Kd7 Ke3 Kc8 Kd4 g5 Ke5 d4 Ke6 g4 f4 d3 h4 d2 h6 g3 f6 g2 f5 Ne7 f7 Nec6 d7+ Kb7 h7 Na5 h5 Bd6 f8Q Bg3 f6 Nc4 f7 Ra3 h6 Nc6 Nh3 g1Q Qg8 Qd4 f8N Bf2 Re1 Qa8 d8Q Ra2 Qgg4 N6e5 Ke7 Qa7 Qde2 d1Q Ba3 Qc3 Nd7 Qcc2 Nf6 Nd6 Nc3 Qca4 Nh5 Nd7 Rb1 Nf6 Rb4 Bd4 Ng3 Ra1 Nh1 Rg8 h8Q Rf8 h7 Qc1 Nd1 Qb8 c6+ Ka8 c7 Qa5 c8N Qba7+ b7+ Kb8 Nb6+ Qc8 Na8 Q5a6 Qhg8 Bb2 h8N Be5 Q8g5 Qc6 Ng6 Qe3 Ngf4 Nc4 Nd3 Qd5 N3b2 Nh7 Qdd7 Rf6 Qdf5 Qcg8 Qb1 Bd6+ Kd7 Qge6+ Kd8 Ka7 Qef3 Qb3 Re4 Rf7 Qe2 Qee5 Ne3 Qed4 Ned1 Qde3 Nc7 Kb6 b8Q+ Ka5 Na8 Ra7 Qc7+ Nb6 Qf7 Nc4 Qff4 Bb8+ Qd6 Qb7 Qdg3 Be5 Nc7 Kb6 Ra4 Qd5+ Bd6 Kb7 Na8 Bf4 Rb4 Be5 Ke8 Bf4 Bf8 Bd6 Kd8 Be7+
NN1r1br1/2P2q1b/1QB1NQb1/4K2q/Q2n1bk1/B4r2/4Q3/RNb1Q2N w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 b4 Rh6 f5 Nc6 g5 Ne5 g6 Nf7 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 Qd6 Qc7 gxf7+ Kd8 Qd4 Qb8 Qd1 Kc7 Bc4 Ba6 Be2 Qd8 Bf1 Bc8 Ke2 e5 Ke3 g5 Ke4 a5 c4 g3 h4 g4 c6 g2 c5 g3 h5 a4 h6 a3 h7 a2 Qd3 a1B Ba3 Nh6 Ne2 g1R Bg2 Rg8 h8Q Qe8 b6+ Kd8 b7 Rf1 b8Q Bb2 b5 Rf3 b6 Bc1 Kd5 e4 b7 e3 Qd2 d6 c7+ Kd7 Qe1 Qe7 Kd4 d5 Qa7 Qe8 Qb6 Qe6 Rf1 Qe7 Bh1 g2 Ng3 g1B Bg2 Bf2 Nh1 Bh4 Qg7 e2 Qg4 Bhg5 Rg1 Bg7 f8Q Qf7 Ke5 d4 Qgh4 d3 Qc4 Ra5 Qa4+ Rb5 Rf1 d2 Rg1 d1B Qfd6+ Ke8 b8N Bf8 Qd3 Bc2 Rf1 Qh5 f7+ Ke7 Qe3 Rb4 c6 Bd7 Q3f2 Be8 Qba5 Bce3 Qb6 Rf4 Qd2 e1Q Qfe2 Qf2 Nc3 Bd3 Ra1 Bg7+ Kd5 Kf6 f8Q+ Nf7 c8N Rbe4 Qde1 Bc1 c7+ Re6 Qfd6 Ne5 Qbb5 Nc6 Nb1 Nd4 Nb6 Bf7 Qf8 Re8+ Kd6 Qf1 Bc6 Rf2 Na8 Rd8+ Kc5 Be4 Qb6 Ke5 f6 Kf4 Qe7 Bh7 Q7e6 Bfg6 f7 Rd6 f8N Rd8 Qe7 Kf5 Ne6 Bf8 Nd7 Rf4 Kd5 Qff3+ Kd6 Kg4 Ke5 Rf6 Qec2 Qf1 Nb8 Rf2 Nc5 Qc4 Qf6 Rf3 Qce2 Qf7 Ne6 Bgf4#
b3R3/1b1Q3r/k2nBq1n/P4Q2/RKRbN1pB/3bn1r1/1RBB2R1/5B2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 a5 g4 c6 gxh5 a4 Nc3 a3 Nb5 cxb5 bxa3 b4 a4 Bd6 a5 Bf8 h4 Kd7 e4 Kc7 a4 g5 d4 b5 Kd2 Kb7 e6 f5 h6 f4 a6+ Kb6 d6 b3 Kc3 f3 e7 f2 e8R b2 e5 b1B h5 g4 d5 Qh4 d7 Ka5 d8R Bb7 d6 Kb6 e6 Bc8 d7 Bd3 a7 Kb7 h7 Be7 a5 Na6 h6 Bf8 e7 Qg5 Bd2 Nb8 Ne2 Qe3 Rh2 Bg7+ Kb4 Bf6 Ng3 Qe5 Rg2 Ka6 Ra4 Bb7 Rc8 Qf5 d8B Bd4 Qb1 Qf6 Ne4 Nd7 Rc4 Rc8 a8B Nc5 Qd1 Rc7 Qf3 Rd7 Qf5 Rd5 Qd7 Rh5 Qf5 Rh3 Qd7 Rg3 Qf5 Bc8 Bd5 Bb7 Be6 Ba8 Rf8 Nb7 e8B Nd6 Bg6 Bb7 Re8 Ba8 Be2 f1N Be7 Ne3 Bf1 Qe5 Bh4 Qf6 Rc2 Bc4 Rb2 Bcd5 Rc8 Bdb7 Rc4 Ne7 Ka3 b4+ Kb3 Rg8 h8Q Rg7 Qd8 Ng8 h7 Nh6 h8R Rd7 Re8 Rh7 Ka2 b3+ Ka3 Qe7 Kb4 Qf6 Rba2 b2 Qd7 b1B Rb2 Bd3 Qf3 Bb1 Nf2 Qf4 Be4 Qf8 Qf5 Bc2 Bed3 Qf6 Ne4 Bd1 Bb1 Be2 Bc2 Bd3
2q1Qn2/6NP/2r1q1n1/R2p4/Q1rbN2N/N1q4k/2B1q1Rq/2RNRR1K w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h6 f5 Bb7 g5 Bd5 g6 Bf7 Bg5 hxg5 Bg2 Qc7 gxf7+ Kd8 Bf1 Qc8 Qd3 Kc7 Qd1 Qd8 Kf2 e5 Kg2 d5 c4 Kd7 b4 a5 h4 a4 b6 a3 h5 e4 c6+ Kd6 c7 Ke5 c8R Kf4 h6 a2 h7 g4 c5 g5 b7 g3 c6 e3 c7 e2 b5 Kg4 b6 Ra3 Qa4+ Bb4 f8R e1Q f7 Nd7 b8Q Qd1 b7 Qf6 Ne2 Rf3 Na3 Qg7 f6 Qg6 Nc3 Rf4 Bd3 Bc5 Bc2 Rc4 Re1 Ne7 Kh1 Qe2 Nd1 Bd4 Qba8 Kh3 b8R g4 Rb2 Rg8 Rc1 a1Q Rcb8 Nf5 c8N Nh4 Nd6 Rh8 R2b5 Qc3 Ne4 Qh6 Rc5 Ng6 Ra5 Qhe3 Rg8 Ndf8 Rbb1 Rc6 Nd2 Qe6 Ne4 Nd7 Rg7 Rhc8 f8N Rc4 f7 R8c7 Qe8 R7c6 Ne3 g2+ Kg1 Nh8 Ng6 Nf8 Nh4 Qc8 Rg5 Nhg6 Rf1 Qf3 Rce1 Qff5 Rbc1 Qfe6 Kf2 g3+ Kf3 Qd2 Nd1 g1Q Rg4 g2 Rg5 Nd7 f8N Qh2 Rg4 g1Q Rg2 Qed6 Ne6 Ndf8 Ng7 Qde6 Rgf2 Qgg5 Rg2 Qge7 Ne3 Bf6 Nd1 Qc3+ Kf2 Qhb8 Kg1 Bd4+ Kh1 Qbb2 Nd6 Qe2 Ne4 Qee6 Qd8 Qbb8 Qe8 Qh2+
Q2q1n2/BBq1q1Nb/2pQr2P/2Q2r2/k1B1R3/4N1KQ/1b1B2Q1/2B2rr1 w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 f5 fxe5 h5 a4 f4 axb5 Nc6 g4 Nce7 Ra6 Rh6 Rg6 Nf5 gxf5 Rh8 Rg4 hxg4 Kf2 Kd7 h4 g5 d4 a5 e4 a4 h5 a3 e6+ Kd6 e7 a2 e8Q a1Q b6 f3 h6 Ra4 b7 Ra3 b8B Bb7 b5 Re3 b6 Qc3 f6 Qc4 f7 Qa2+ Qc2 Rc3 Nd2 Qb2 Ne2 Ra3 Ba7 Qb1 Rh4 Re3 Nf4 Qa1 Bc4 Ra3 Nf1 Bc6 b7 Qa2 b8B Ra5 Kg3 f2 Ne6 Qa3+ Ne3 f1R Qg2 Ne7 Ng7 Ng6 Qh3 Be7 Qg8 Bf6 f8Q+ Kd7 e5 Qae7 d6 Be4 e6+ Kc6 d7 Raf5 Qff7 Nf8 Qh5 R5f4 Bd2 Bh7 Bc1 Rf5 d5+ Kb7 d6 Kc6 Bd2 Bb2 Bc1 Qde8 d8Q Q8f7 Kg2 g3 Re4 g4 d7 Qff6 Qc8 Qd4 d8Q Qd5 Bb3 Kb5 Bc4+ Ka4 Qd6 Qd3 Qb7 c6 Qa8 Qc7 e7 Qd1 e8B Qe7 Qc5 Qdd8 Bf4 Qec7 Qe6 Rg8 Qed6 Qce7 Ne6 Rg6 Ng7 Re6 Bd7 Qc7 Qh2 Qcd8 Bc8 Qec7 Qg1 Qde7 Kh1 g2+ Kh2 g3+ Kh3 Qed8 Bb7 Qce7 Qh2 g1Q Qg2 Qf2 Qh4 Qec7 Kg4 Qe1 Qhh3 Qb4 Qf2 g2 Kg3 g1R+ Qfg2 Qca5 Be5 Qac7 Bc3 Qde7 B3d2 Qba5 Ne8 Qcd8 Ng7 Qac7
2KN1B2/qrb5/1Q1N1p2/Nr1bN2b/5P1b/n1kB4/B2r3r/RB2NB1Q w - - 0 1 legal: proof: d4 e5 dxe5 c5 g4 b5 b4 h5 bxc5 b4 g5 f6 g6 b3 axb3 Nc6 b4 Ke7 b5 Nh6 Ra4 Nf7 Rg4 hxg4 gxf7 Ke6 Bh6 Ne7 Bg5 Ng8 Bc1 Ke7 Kd2 Ke6 Kd3 Kd5 f4 a5 e4+ Ke6 Kc4 g5 h4 a4 b6 d5+ Kb5 a3 Kc6 d4 c4 d3 h5 d2 b7 a2 b8Q a1B h6 g3 h7 g4 Qb6 g2 Na3 g3 Nf3 g1R Ne1 Qd3 Kc7+ Ke7 e6 g2 c6 Bd4 e5 Bc3 c5 Bd4 Nc4 Bf2 Na5 Qe3 Ba3 Bh6 f8N Ba6 Nd7 Rb8 Qdb1 Rb7+ Kc8 d1B c7 Bc4 c6+ Qc5 Qe4 Bh5 Bd3 Ke8 e7 Kf7 e8B+ Ke6 Bg6 Bd5 Bb1 Qd4 Bf8 Bg5 Qf3 Qa1 Bgd3 Nh6 Ba2 Ng4 Bf1 Rg8 h8N Ne3 Nf7 Rh8 Nd8+ Kf5 e6 Bgh4 e7 Nc2 e8B Na3 Qd1 Ke4 Ne5 Bc5 Bd3+ Kd4 Beg6 Kc3 Bdb1 Rf1 Bgd3 g1R Qf3 Rg6 Rg1 Rhh6 Qh1 Rg5 Bbc2 Rg2 Kd7 Rff2 Nb3 Nb1 N1f3 Re2 Re1 Rg1 Rc1 Rb8 c8B Bg3 c7 Rb7 Rd1 Rgg2 Ne1 Ref2 Bf1 Bhf3 Bh7 Rhh2 Bf5 Rb8 Bca6 Bd6 c8N Bc7 Nd6 Rb7 Kc8 Bh5 Bc2 Bh4 Bad3 Qb2 Rc1 Qa3 Be4 Qa7 Bed3 Na3 Ra1 Re2 Bcb1 Rb2 Na5 Rb5 Nc2 Re2 Ne1 Rd2
4rk2/rB3qr1/1Qr4n/1K1QppN1/1n1QQ2R/R1q2Pn1/Q2R1N2/4R2R w - - 0 1 legal: proof: d4 b5 a4 d5 axb5 e6 c4 Bd7 cxd5 Bc8 d6 Be7 d5 Bg5 e3 Bf6 g4 Na6 g5 Bd4 exd4 f6 g6 Nb8 Bd2 e5 Ra5 h6 Bc1 Be6 Bg5 hxg5 Ra1 Bf7 gxf7+ Kd7 Ke2 a5 Kd3 c5 Kc4 g6 f8R g4 b4 g3 h4 a4 b6 f5 b7 g5 f3 a3 h5 g2 b5 a2 b6 g4 h6 g3 h7 Qe8 Kb5 c4 Nc3 Ra3 Qb3 Ra6 Nd1 c3 Nh3 g1R Ng5 c2 Nf2 g2 Re1 a1N Qa2 Nc6 b8Q c1R b7 Qe7 Qa8 Ra3 b8Q Rd3 Qb6 Ra3 Rc8 Na5 Rc3 Ra4 Ra3 Nc4 Bd3 Nc2 Be4 Qf7 Qab7+ Ke8 d7+ Kf8 d8R+ Kg7 d6 Ra6 d7 Nb4 d5 Nd2 d6 Ra7 Qa8 Rc3 Bb7 Nh6 Qd4 Rf8 h8R Ne4 Rh4 Re8 Rh1 Ng4 R8h4 Ng3 Qe4 Kf8 Qb8 Nd3 Qc7 Nh6 Qb6 Rc7 Nd1 Rf1 Nh3 Rf2 Ng5 Qe6 Rc8 Rfc2 d8Q Re7 d7 Rg7 Rc7 Rc1 Rc2 Nb4 Qbd4 Qb3 Q8b6 Qf7 Rce2 Rc6 d8Q Qf6 Q8d5 Qf7 Nf2 g1Q Rd1 Qf1 Rd2 Qc1 Ree1 Qc3
1B5k/B1p2BR1/3NPn1b/1RR3pq/Qb3K2/R2r1n2/1R2p1BQ/1B1r3r w - - 0 1 illegal: No possible last move
KR2n3/3BB2Q/5Qnq/k4prB/1NrB4/1Q2QrBR/bQ3P1n/n1n1b3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e6 d4 Qf6 d6 Qg5 Nc3 Qd8 Nd5 Bb7 Nf4 Bc8 d5 e5 Ne6 Qh4 Nd4 exd4 Qb3 Qf6 Qd1 Qd8 Kd2 Kd7 Kd3 g5 Ke4 a5 b4 c5 h4 f6 b6 a4 h6 g4 b5 a3 h5 c4 h7 g3 h6 g2 b7 a2 b6 c3 Qe1 c2 Rh3 d3 Rb1 a1R Bf4 c1N Bg3 d2 Nf3 g1N Ne5+ Ke8 d7+ Ke7 d6+ Ke6 Nc6 d1N Nb4 Nc6 b8Q Be7 b7 Qc7 d8B Kd7 Kd5 f5 e4 R8a2 e5 Ra4 Be2 R1a3 Bh5 Qb6 Qe3 Nf3 Rb2 Bf8 Be7 Nh2 Qa7 Qa6 b8Q+ Bb7 Qab6 Nf6+ Kc5 Rg8 h8B Rg5 h7 Bh6 Bg7 Rb3 h8Q Ne8 Qh7 Rba3 Qb3 Ne3 Q8a7 Kc8 e6 Nc2 Bd4 Ne5 Qb5 Na1 d7+ Kc7 Qe2 Ng4 Rb1 Nh2 Qeb2 Qd6+ Kb5 Ng6 Qc5+ Kb8 d8Q+ Bc8 Qcc3 Kb7 Qe3 Qf4 Kc5 Ka7 Qd6 Ba6 Qde5 Bc4 Qf6 Qh4 Qb3c3 Ba2 Qcb3 Ra5+ Kc6+ Rc5+ Kd7 Kb6 Kd8 Nc7 Kc8 Ka5 Kb8 Ne8 Ka8 Rc3 Bec5 Rc4 e7 Nd6 e8B Bf8 Ba4 Ne8 Bd7 Be7 Bf3 Qh6 Bh5 Bd8 Be7 Bc7 Qed3 Bf4 Qf3 Bd2 Qfe3 Be1 Q3c2 Ncb3 Qbc3 Nd6 Qec1 Nf8 Nc6+ Ka6 Q1d2 Nc1 Rb8 Ne8 Q2b2 Ng6 Nb4+ Ka5 Qcc2 Rac3 Qcb3 Rf3 Qe2 Rc8 Qee3 Rc4
n1r1R3/2n4r/1b1R1R2/1p1K1B2/1P1B1B2/b5Rb/kq1rRBBN/n1b1Q1Q1 w - - 0 1 legal: proof: e4 h5 c4 d5 cxd5 f5 exf5 a6 g4 Ra7 gxh5 Ra8 Na3 a5 Nc2 a4 b4 Bd7 Nd4 Bc8 Nb3 axb3 Ke2 Kd7 Ke3 Kd6 Kd4 g5 a4 b5 h4 c6 f4 e6 f6 g4 h6 b2 f5 b1N a5 g3 a6 g2 f7 Rh7 f6 Rg7 h7 Ra7 h8B Bd7 h5 Qc7 h6 Ra8 h7 Ne7 a7 Na3 Rh3 Na6 Nf3 Nc8 Ra2 Nb6 Bd3 Rc8 Qg1 Na8 Rg3 c5+ Ke4 e5 Nh2 Be7 f8B c4 f7 c3 Bc2 Qd8 d4 Bh3 Bf4 N6c7 Bd3 Qd7 Re2 c2 Qe1 c1B Bb1 Nb6 a8B g1B Bb7 Nba8 Bd3 Rg8 Bfg7 Qe8 f8R Bg5 Rf6+ Qe6 Bh6 Nc2 Be3 Rge8 Bf2 Re7 Bc6 Bgd2 Bf4 Na1 Bg7 Ba3 h8Q Rf7 Qg8 Bdc1 Bh8 Rh7 Bb7 Kd7 d6 Qa2 d5 Qb2 Qg5 Kd8 d7 Ke7 B2e3 Bf2 d8R Bg1 Ba7 Bc5 Rg8 Bb6 d6+ Kd7 Ba6 Kc6 Re8 Ba5 Bf2 Bb6 Kf3 Kd5 Bf5 Kc4 d7 Kb3 Ke4+ Ka2 d8R Ne6 Kd5 e4 Bb7 e3 Rd2 e2 Rd6 Nc5 Bc6 Na6 Qg7 Ba5 Qa7 Bd8 Qe3 Bb6 Qg1 e1R Re2 Rd1+ Qd2 Bd4 Qde1 Rd2 Rfg6 Bc5+ Bhd4 Bb6 Rgf6 Rhc7 Ke5 Rb7 Bg2 Rh7 Kd5 N6c7+
bR1n2Q1/k5BR/3Q1nNp/4bR1N/rNKp2NP/r2q1NRp/R7/4n1r1 w - - 0 1 legal: proof: d4 f5 a4 c5 dxc5 g5 h4 b5 axb5 g4 e4 Nh6 exf5 Ng8 g3 Nf6 Bg2 Ng8 Bh3 gxh3 Kd2 e5 Kc3 a5 f4 d5 b4 Kd7 f6 Kc7 g4 Kb7 b6 a4 f7 a3 c6+ Ka6 c7 a2 g5 h6 b5+ Kb7 g6 e4 g7 e3 f5 e2 f6 e1N Ne2 Be7 f8R Qd7 f7 Nc6 Nf4 Ra5 Bb2 Nd4 Nd2 Nf6 g8N Ndf3 Nh5 Nd4 Nf3 Ba3 Rg1 Ra8 Rg3 Ng4 Ngf6 Nf2 Ng4 Qe7 Qd3 Be6 c8R Qe8 Rc7+ Kb8 b7 Ka7 b8N+ Kb6 Nc6 Bd6 Nb4 Ka5 b6 Qd8 b7 Be5 b8R Nc6+ Kb3 Bc8 c4 Ne4 c5 Nf6 Bc3 Qd7 Qd2 Nd8 c6 Qd6 Rcb7 Qd7 c7 Rg8 Ra7+ Ba6 c8Q Qb5 Qe6 Qd3 Qd6 Rg6 Qg5 Rg7 Rc7 Bb7 Qg6 Kb5 Qh7 Ra4 Qg8 Nc6 Re7 Kb6 Rd7 Ka7 Re7 Bf4 Rd7 Nd8 Rc7 Qd2 Be5 d4 Kc4 Nh7 Bf6 Be5 Rd7 Rg6 Bg7 Ra3 Rb1 a1R Rb2 Nf6 Ra2 Bf4 Re8 Qe3 f8N Be5 Rde7 Rg5 Ng6 Ra4 Rf8 Qe4 Re2 R1a3 Ra2 Qb1 Bh8 Qf5 Rh7 Qe4 Bg7 Ba8 Ngh2 Qf5 Ng4 Qd3+ Kc5 Rf5 Ng5 Rf1 Nf3 Ne8 Rf4 Rg1 Rf5 Qb1 Kb5 Nf6 Kc4 Qd3+
R4b1B/1pQQ1Qp1/Q2K1n1p/4RQ2/N2brnqP/Rr2R2b/6N1/1R2q1k1 w - - 0 1 illegal: Other
Q5b1/BR2QR2/NK2nq2/PR2q3/2q1kN2/1Q1n1n2/1N2r3/Rnr2Q1R w - - 0 1 legal: proof: e4 d5 g4 a5 b4 f5 bxa5 d4 exf5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 a3 h5 gxh5 b5 Bc4 e6 Bb3 Be7 Ba4 Bb4 axb4 bxa4 Ke2 Ke7 Kd3 Kf6 Kd4 g5 Kc5 Ke5 f4+ Ke4 h4 a3 d4 a2 f6 c6 h6 e5 f5 g4 b5 g3 d6 g2 d5 Qe7 h7 Qe6 h5 Bb7 f7 Ra6 f8R Ne7 f6 Qc8 b6 Qd7 f7 Ba8 b7 Qd8 h6 Qc7 Ne2 g1N d7 Nf3 d6 Nd5 d8Q Nc3 Na3 Nb1 d7 Rg8 h8Q Rg2 Nf4 Re2 h7 Qc8 Kc4 c5 Kb5 c4 Be3 c3 Ba7 c2 Nc4 c1N Nb2 Rc6 Qb3 Na6 b8N Nd3 Qe7 Rc1 d8R Nac5 Kb6 Bd5 Na6 Ne6 Rd7 Qc4 Rb8 Ng7 f8R Bg8 Rdb7 Ne6 Qhg7 Ke3 h8Q e4 Rf6 Kd4 Rh4 e3 Rh1 Ke4 Qg4 Rg2 Rf5 e2 Rf7 e1Q Qgh3 Re2 Qf1 Qh4 Rc8 Qf6 Rc5 Bh7 Qhd8 Bg8 Rb5 Nbd2 Rb1 a1Q Qa8 Qe5 Nd1 Qac3 Ra1 Nb1 Nb2 Qf6 Rbh5 Qe1 Rd5 Qec3 Rb5 Qce5
N1r4Q/2P2q2/1Q1QNn2/K2n1R1b/4NB1q/B6k/B5qr/Q2N1rqQ w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 h5 a4 a5 bxa5 c5 g4 e6 gxh5 b4 d4 c4 d5 c3 a6 Bc5 a5 Bd4 Ra2 Bb6 Rb2 cxb2 axb6 Rh7 b7 Rh8 Nd2 b1R a7 Rb3 Nb1 Rg3 Na3 Rc3 Nb1 Rc6 dxc6 Kf7 Bd3 Ke7 Bf1 Ke8 Kd2 Kf7 f4 Kf6 h4 d5 c4 g5 c7 g4 c5 d4 c6 e5 h6 d3 h5 g3 h7 b3 Kc3 d2 Kb4 b2 h6 g2 Nf3 g1R Ng5 e4 Nc3 b1Q+ Ka5 e3 Ba3 e2 Nge4+ Kf7 f6 Ke6 f7 Kf5 f8Q+ Kg4 f5 Qc1 f6 Qa1 f7 Nf6 Rh5 Be6 Rf5 Qe8 c8Q Ba2 Qe6 Kh4 Qfd6 e1Q f8N Qf7 Bc4 Na6 b8B Qb2 Qa1 Kh3 Nd1 Qh4 Bb3 Bb1 Ba2 Nc7 Qb3+ Bd3 Ne6 Rf1 Qb6 Ncd5 Bc7 Rab8 a8N Rbc8 Bb8 Be2 Bc7 Rhe8 h8Q Bh5 h7 Rg8 Qdb4 Rg2 Bf4 Rgf2 c7 Rh2 Q4d6 Qc2 Qg8 Qc6 h8Q Qc2 Qgg1 Qb2 Ne3 d1Q Qh1 Qdc1 Nd1 Qg2 Qh7 Qe3 Qh8 Qeg1
1kN3NN/q4nBQ/rrB5/2b1n1B1/1QRp4/2QPb1Q1/2r2B2/1Q3Kn1 w - - 0 1 legal: proof: e4 c5 a4 h5 b4 a5 bxc5 f5 exf5 b5 g4 b4 gxh5 Rh6 Ra3 Rf6 Rb3 Bb7 Rxb4 axb4 a5 Rh6 a6 Bg2 Bxg2 Rh7 Bf1 Rh8 h4 g5 c4 e5 f4 d5 a7 Kd7 h6 Kc8 f6 g4 c6 b3 f5 e4 h7 e3 f7 g3 f6 b2 h5 e2 d3 g2 h6 Qa5+ Nc3 b1R c5 Qb6 c7 Nc6 Nf3 g1N Ng5 Bg7 f8Q+ Nd8 f7 Rb4 Rh4 Qd6 Rc4 Rab8 a8Q Qb6 Bg2 Qd6 Nce4 Qe5 Nf6 Ne7 Ng8 Kd7 c8N Kc7 c6 Qb2 Qb3 Qa2 Qb1 Rb2 Be4 Nf5 Qb4 Rb6 f8B Qb3 Bc5 Nh4 Nf7 Rd2 Bf2 Rc2 Bg5 d4 Qaa1 Kb8 Qac3 Qa4 Bd5 Bf8 Bh1 Ka8 c7+ Rb7 Bc6 Ng6 Ncd6 Ka7 c8Q Ne5 Qh3 Rb6 Nc8+ Kb8 Qg3 Qa2 Nge7 Rg8 h8B Qa7 h7 Rg6 Ng8 Bc5 Bg7 Rd6 Nh8 Ndf7 Ng6 Rf6 h8Q Re6 Qh7 Rf6 Bfe3 Rd6 Kf2 e1B+ Kf1 Bd2 Bf2 Be3 Nh8 Re6 Bb7 Ra6 Bd5+ Reb6 Bb7 Nf3 Bc6 Ng1
1kN2R1Q/q1rpQ1p1/2nbq2r/1P1R2B1/1Q2RR1Q/1R3N2/n1q5/1K1N4 w - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Na6 b4 Nb8 b5 Ba6 Bg2 Bb7 Bf1 Bc8 b4 a5 Bc4 h5 gxh5 a4 Bb3 Ba6 bxa6 axb3 Kd2 e5 f4 e4 c4 b2 Kc2 e3 h4 e2 b5 e1Q h6 Qb6 f6 Kd8 h5 Kc8 c6 Bd6 h7 Ba3 c7 Qc6 c5 Qe7 h6 Ra7 f5 Qf3 f7 Qg3 f8R+ Qe8 f6 Qg4 f7 Qb4 Bg5 Qe1 Qd2 Qe3 Rh5 Qe6 Qb4 Ne7 Nc3 Qe1 Nf3 Rg8 h8Q Qh4 h7 Qd8 Rf1 Qg4 Kb1 Qc4 Nd1 Rb7 a7 Qh4 a8R Qf2 Ra4 Nec6 Re1 Qe8 Re4 Rb6 Rh3 Kb7 c8R Na6 Rf4 Qee3 Rce8 Qb3 Ree4 Qe6 Re5 Ka7 Rd5 Rb7 Rg3 Rc7 Rh3 Nd8 c6 Kb8 Qe7 Qa7 Rae4 Bd6 Rg3 Nb4 Rh3 Na2 Rg3 Rb7 c7+ Ka8 c8N Rc7 Nh4 Kb7 Rb3 Nc6 Nf3 Kb8 Re8 Qd4 f8Q Qa7 Rd8 Be5 Qb4 Bd6 Qe7 Rf8 Re8 Rf6 Rf8 Rh6 Qg8 Rh5 h8Q Rh6 Qgh7 Rf6 Qh4 Rh6 Kc2 b1Q+ Kd2 Qa1 Kc2 Qc3+ Kb1 Qc2+
3QQ1n1/rQ4N1/7k/n1R5/R2RpKb1/1b4Pp/1N1q1p2/RB1Qn1NQ w - - 0 1 legal: proof: c4 a5 b4 g5 a4 b5 h4 d5 hxg5 Nd7 cxd5 Ra7 Ba3 Ra6 axb5 Ra7 b6 Ra8 b5 Nb8 Bb4 axb4 d4 e5 f4 Ra2 e4 Bg7 d6 Ra7 d5 Ra3 d7+ Kf8 d6 Rd3 Rh3 Rd4 Rh1 Rd5 exd5 e4 Nc3 Nh6 Nb1 Be5 fxe5 Ng8 Kf2 Kg7 Kg3 c5 g6 h5 e6 f5 b7 c4 b6 c3 e7 h4+ Kf4 h3 e8N+ Kh6 g7 b3 g3 c2 Ra4 c1N Nd2 b2 Nc4 b1B Nb2 Na2 Bd3 Nc6 b8Q Rh7 b7 Qe7 d8Q Ncb4 d7 Bc2 d6 Nf6 g8Q Bb3 Bb1 Qf8 Ng7 Nc6 Qh8 Nc1 Qe8 Qe7 d8Q Na5 d7 Qb4 Qa8 Qc3 b8R Ng8 Rb5 Qb4 Rc5 Qd2+ Ke5 f4 Qb7 f3 Kf5 f2 Kg4 Qe2+ Kf4 Nf6 Qhf8 Ng8 Qff7 Qc2 Qc4 Qc3 Qcf1 Qe1 Qde7 Qe2 d8R Bg4 Rdd4 Qc2 Q7d8 Nd3+ Ke3 Ne1 Kf4 Qe2 Nf3 Bf7 Nf5+ Kg6 Bc2 Rh6 Qd3 Kh7 Rg1 Ra6 Ng7 Bb3 Qg2 Qd1 Qh1 Kh6 Rf1 Ra7 Ng1 Nf3 Qe2 Qd3 Rfa1 Qd1 Bb1 Ne1 Qef3 Qc2 Qd1 Qd2+
3bQR2/1NN1n1Q1/rn1Q1b2/3p1Np1/2NK3N/p2Q4/3b1k1P/1RRBb3 w - - 0 1 illegal: No possible last move
5N2/2P2q1b/Q3p3/1p1R2p1/Qp1B2nk/NBbN1BbB/bB1QN3/K7 w - - 0 1 legal: proof: e4 h5 g4 f5 gxh5 Kf7 exf5 Ke8 a3 Nc6 a4 Nb8 c4 b5 a5 a6 Ke2 Ra7 Ke1 Rb7 Qe2 Rb6 axb6 a5 Qf3 Na6 Qd1 Nb8 b4 a4 Ke2 g5 Nh3 Rh6 Ke1 Rd6 Ng1 Rd3 Ba3 Rg3 Bc1 Rc3 dxc3 Bg7 Nh3 Bh6 Ng1 Bf8 Ba3 Nc6 Ra2 Na5 bxa5 c6 Rb2 c5 Rb4 cxb4 Bb2 Bg7 Bc1 Bf8 Kd2 Kf7 Kc2 Kf6 Kb2 d5 h4 a3+ Ka1 a2 f4 d4 h6 d3 h7 d2 h8Q+ Bg7 a6 Qd7 h5 Nh6 a7 Nf7 a8B Qe8 b7 Be6 b8Q Qc6 c5 Ne5 c4 Qa6 c6 Nf7 h6 Qa5 h7 Nd6 c5 Ne4 c7 Nc3 c8B Qa7 c6 Qa5 c7 Bg8 Bc4 Be6 Bb3 Ne4 Qd8 Bf7 h8B Bg6 Qb7 Qa7 Ne2 Qd4+ Bb2 Qc3 Na3 Qe5 Qa6+ Nd6 Bf3 Bh7 Qc2 Qc3 Rd1 Qd4 Bce6 Nc4 Bc8+ Kf7 f6 Qd5 Bh3 Ne5 f5 Ng4 Qdd6 e6 Qa4 Bf8 Qda6 Qd7 Qc3 Bd6 Qd4 Kf8 f7 Bg3 Bg7+ Ke7 f8N Kf7 f6 Qe7 Nd7 Kg6 f7 Kh5 f8N Qf7 Nc5 Kh4 Re1 d1B Qd2 Bdc2 Rd1 Bce4 Bgd4 Bd5 Nd3 Bc4 Bc1 Bd5 Kb2 a1B+ Kb1 Bc3 Bb2 Bf4 Ka1 Bg3 Bf2 Bg7 Bfd4 Bh8 Rc1 Bhe5 Rc5 Bc4 Rd5 Bg7 Bc2 Ba2 Bb3 Qe8 Ba7 Bc3 Bd4 Qf7
3QBN1b/B6Q/n5N1/rPK2Q2/2N1bb1q/nNb1B3/1Q1r1NbR/1q4k1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 h5 gxh5 a5 b4 Rh7 b6 Bb7 b5 Bc8 Ra4 Rh8 Rb4 axb4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 f4 g5 d4 e5 b7 c5 h6 g4 h7 b3 f6 g3 d6 g2 f7 b2 f5 Ra2 f6 Ra8 h5 Ra2 d5 Ra7 d7 Bd6 f8Q Na6 b8B Bb7 h6 Ne7 f7 Nc8 Qd2 Qh4 Na3 b1B Nh3 g1Q d8N Kf3+ Qd4 e4 Bg2+ Ke2 Be3 Be5 d6 Qd1 d7 Nb6+ Kc3 c4 Ne6 Rg8 d8Q Bh8 Rh2 Rg6 Bf3+ Kf1 Nf2 Kg1 Nc5 Rg2 Nb3 Bd3 Bg4 Qb1 Bd7 Bd5 Be8 Bc6 Bd2 e3 Q4f6 e2 Be3 Ra8 Ba7 Bde4 Kd4 c3 Nc4 e1B Qg8 c2 f8N c1B Qg4 Nb8 Kc5 Bc3 Qgf5 Bcd5 Bd4 Bf4 Be3 Rg6 Qd4 Rd6 Qd3 Bg2 Qd2 Bde4 Qb2 Bhg7 h8N Rd2 Nhg6 Bh8 Nd6 Nc4 h7 Na3 Nc4 Bhf6 h8Q Na6+ Kb6 Bg7 Qh7 Bh8 Bb8 Nc7 Kc5 Ra5 Ba7 Na6+
N1nNk2n/q1qb1qP1/4B2R/r1qQN1N1/QN2Q1KB/3Q4/2r1nq2/6B1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 b4 Na6 g4 Kd7 h4 Rb8 f4 Bg7 f5 Bb7 Ra3 Ra8 Rf3 Bf8 Rf4 gxf4 g5 Bc8 g6 Bh6 Bc4 Ke8 Bf1 Bg5 hxg5 Nb8 Kf2 h5 Kf3 a5 d4 e5 g7 c5 b6 h4 f7+ Kd7 f8Q a4 d6 a3 g6 c4 b7 e4+ Kg4 c3 b5 e3 b6 a2 f6 a1Q d5 c2 f7 e2 Bh3 e1Q Qd3 f3 Nd2 f2 Ne4 f1N Ng5 Nc6 b8Q Nb4 b7 Qe2+ N1f3 Qdf6 Qa7 Qfc3 Qa4+ Qc6 Be3 c1Q Bg1 Ne7 g8Q Ra5 g7 Ng6 b8B Qe8 Ne5+ Kd8+ d7 Q6c5 Qh7 Ng3 Qd6 Ne2 f8N Qf7 Ba7 Qc7 Baf2 Q1c5 Qdc6 Ke7 Nfe6 Rf8 d8N Bd7 d6+ Ke8 Qh5 Nh8 Qce4 Nd5 Ndc6 Ne7 Nb4 Nc8 Bg3 Qg6 Rh2 Rf1 B3f2 Rc1 Be1 Qf7 Bef2 Bb5 Rh1 Rc2 d7+ Ke7 d8N Bd7 Qhg6 Qf1 Qgf5 Ke8 Bg3 Q7a7 Qdd5 Qff2 Nc7+ Ke7 Na8 Ke8 Bf1 h3 Bh4 h2 Bh3 Bc6 Qed3 Qfc7 Qfe4 Bd7+ Kh5 Bc6 Be6 Bd7 Kg4 Qf7 Be3 Qf2 Re1 Qf7 Bg1 h1Q Rf1 Qh2 Rf6 Qhf2 Rg6 Ra2 Rh6 Rc2
NkqrN3/5q1N/1q3R1Q/2R1n1Rb/3PQB1N/2br1br1/bQ1R4/3N2K1 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f7+ Kd7 cxd3 Qe8 d4 Qd8 d5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Bg7 h4 Bb7 h5 Bh6 f5 Bf8 f6 Bc8 g5 Nc6 Bd3 Ne5 Bf5+ gxf5 Rh2 Qe8 Rh1 Ng6 hxg6 Qd8 Kf2 a5 b4 e5 d4 h5 b6 c5 g7 c4 d6 e4 g6 h4 b5 c3 b7 e3+ Kg2 e2 b8Q e1Q b6 c2 b7 a4 Rh2 a3 Qd2 a2 Nf3 f4 Nc3 Qe6 Nd1 h3+ Kg1 Qb6 Nh4 f3 Qh6 Ne7 g8R Nc6 g7 Ne5 Bf4 c1Q Rd2 Ra3 Qa8 Rd3 b8Q Qcc5 Rc1 a1R Qe4 Raa3 Rcc2 Qcc6 Rc5 f2+ Kh1 f1B Kg1 Kd8 d7 Be2 Qb7 Bh5 Qb8 Qa5 Qb2 Kc7 d8N Qb3 Ne6+ Kb8 Nc7 Qab6 Na8 h2+ Kh1 Be7 f8N Be6 f7 Qc8 Nh7 Bd5 Kg2 h1B+ Kg1 B1f3 f8R Be6 Rf6 Bf8 Rc4 Bb4 Rc5 Bef7 Rd8 Be6 g8N Bc3 Rd7 Qd5 Rg7 Qdd7 Rg5 Ba2 Rfc6 Qf7 Ngf6 Rd8 Ne8 Bfg4 Rf6 Rg3+ Kf2 Bf3 Kf1 Ba5 Kf2 Rd3 Kf1 Bc3 Kf2 Rh3 Kg1 Rg3+
n4qB1/2q3kr/6r1/2qB3Q/PbnR4/Nn4QB/2Bq1NN1/QKB1r2Q w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 g4 Bd7 a4 Ra7 Ra3 Qc8 Rf3 Bb5 Rf4 gxf4 h3 Be2 g5 Bg4 hxg4 Qd8 Ke2 Ra6 Ke1 Ra8 d4 Kf7 Kd2 e5 Kc2 h5 a6 b5 a7 c5 g6+ Ke8 g5 b4 g7 Kf7 d6 c4 d7 e4 d5 e3 d6 f3 Rh4 e2 Rd4 e1Q Bh3 c3 Na3 f2 Kb1 Qc7 d8Q f1Q d7 Nc6 Qb8 h4 d8Q Nge7 Qe8+ Kg8 Qeh5 b3 Qb7 Ne5 Qh1 b2 Qdg4 Rh6 Qg3 Re8 a8B Qd2 Be4 Nc4 Bc2 Nc8 f7+ Kh7 g8B+ Kg7 g6 Bb4 f8N N8b6 Bf7 Na8 Bd5 Re1 f6+ Kh8 f7 Kg7 Bd7 h3 Bc8 h2 Nh3 Qff4 Nf2 Qfd6 Bh3 Qdc5 Nh7 Qf8 Ng5 Rh7 Nf3 Rg1 Ka2 b1N Nh4 Re1 Ng2 Qcc5 Qg1 h1R Q1h2 Rhg1 Qh1 Qe2 Ka1 Nbd2 Ka2 Nb3 Kb1 Kf6 g7 Qd2 g8B Qc7 Bd1 c2+ Ka2 Qe8 f8Q+ Qef7 Qe8 Qf8 Qee3 Qcc5 Qc3 Qc7 Qa1 Qcc5 Bb2 c1Q Bc2 Qc7 Bb1 Qcc3 Bc2 Qce3 Bc1 Qee7 Qf4+ Kg7 Kb1 Qec5 Qfh4 Re6 Qf4 Rg6 Qg3 Re1
1BKRnR2/Qn3Q2/2bQ3r/1PB1Rn2/2n2q2/rN3R2/1rR1r1k1/1B2Q1q1 w - - 0 1 legal: proof: g4 d5 f4 b5 c4 h5 cxd5 e6 e4 b4 g5 f6 Nc3 b3 axb3 Ke7 b4 Kf7 b5 f5 exf5 Be7 Ne4 Ke8 Nf2 Bf6 Ng4 hxg4 gxf6 Rh4 Bg2 Rh5 Bf1 Rh8 Ke2 Kf7 Ke3 c5 Ke4 g5 Ke5 a5 h4 c4 b4 a4 d4 g3 b6 c3 b7 a3 b5 c2 d6 g2 d7 a2 Kd6 e5 d5 g4 h5 e4 h6 g3 h7 e3 Qe1 e2 Nf3 g1N Nd4 g2 Rh2 Qe7+ Kc7 Qe6 d8R Ra3 d6 Nf3 d7 g1Q Be3 c1N Nb3 Nc6 b8B Qc4 Bc5 Nd2 Rh5 Nd3 Rc1 a1R Rc2 R3a2 Bg2 Bb7 Be4 Ba8 Kc8 Rb2 Rg5 Ra3 Rh5 Ndb4 Bd3 Nh6 Be4 Re8 h8Q Re6 Bd3 Nd5 Qh7+ Qg7 Rg5 Nc7 Be4 Rd6 Rh5 Ne8 Bd3 Kf8 f7 Ke7 f8R Na5 f6+ Ke6 f5+ Ke5 f7 Kf4 f6 Kf3 Re5 Qg1 Rh8 Qg7 f8Q Qd5 f7 Qc4 Rc3 Be4 Bb1+ Bd3 Qf1+ Kg3 Rc2 e1R Rg8 Re2 Qe1+ Kh3 Qe7 Re6 f8R Qg1 Rf3+ Kh2 Qf5 Qf4 Rf8 Kg2 Qff7 Ndc4 Qd6 Rf6 Qa6 Nb7 Qa7 Nc7 Rde8 Be4 d8Q Nf5 Qd3 Bc6 Qd6 Rh6 Rd8 Ne8
1B3kN1/1B1r2N1/bQ2K1r1/nr3nPq/4b2R/2QQN2B/5Npq/1qB4B w - - 0 1 illegal: No possible last move, all moves rejected
4r2n/b1N3r1/n1Q3BK/1Q4PQ/1QRr2p1/RRn4b/4Qq2/B1kqB2R w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 h5 g5 g6 Na3 Bh6 Nc4 Bg7 Ne5 Bh6 fxg6 Bf8 Ng4 hxg4 f5 Qd6 Ra6 Qd7 Ra1 Qd8 Kf2 Kd7 Kg3 Kd6 h4 Ke5 d4+ Ke4 b4 a5 h5 e5 Kh4 c5 d6 a4 g7 a3 f6 a2 d5 c4 h6 c3 Kh5 c2 f7 Bb7 h7 Bc8 d7 Qe7 d8B Nd7 d6 Ra3 b6 Nb8 d7 Ba6 b7 Rd3 b5 Qb4 b6 Ne7 g8Q Bb5 Ne2 Bc4 Nd4 Ng6 Nb5 Be7 f8Q Qb1 Bd2 c1N Kh6 Rd4 Be1 Ke3 Bd3 e4 Nc7 Ne2 Qe6 Bc5 Bf6 Nc3 d8R Na6 b8Q Qb3 b7 Ba7 Qfe7 Re8 Qb4 Nh8 Rc8 Qb1 Bc2 Bf1 Qc6 Bh3 Qbb5 Qb2 Bb1 Qf2 Qde2+ Kf4 Bg7 e3 Bg6 Re7 Qa8 Red7 b8R Re7 Qab7 Re8 Rd1 a1Q Rd3 Qd1 Qb4 Rg8 Bf6 Rg7 Q7b5 Nb1 Ra3 Nc3 Qf1 e2 Qfg2 Ke3 Be5 Rd3 Rb6 Na2 Ba1 Nc3 Rd8 Qf6 Bf2+ Kd2 Kh5 e1R Qb2+ Qc2 Qbd5 Re8 Be1+ Ke3 Qe2+ Kf4 Rb7 Nf7 h8Q Qb1 Rb4+ Qd4 Rdb8 Qd1 Rc4 Rd2 Qh7 Nh8 Qb3 Rd3 Qba4 Rd2 Rbb3 Rd3 Qb4 Rd2 Be4 Qf2 Qdb5 Rd4 Qhg6 Qb1 Kh6 Qd1 Qa2 Ke3 Qh5 Qdd2 Qb2 Ke2 Bf5 Kd1 Bg6 Qd3 Qa2 Kc1 Qe2 Qd1
3RNBQ1/4Q1B1/2nPq1b1/nQ1r1B2/b4n2/r1B1p1K1/1Q1N1n2/B1rN2k1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 b4 Na6 g4 Kd7 h4 Rb8 f4 Bg7 f5 Bb7 Ra3 Ra8 Rf3 Bf8 Rf4 gxf4 g5 Bc8 g6 Bh6 Bc4 Ke8 Bf1 Bg5 hxg5 Nb8 Kf2 Kd7 d4 Kd6 g7 e5 g6 h5 f7 a5 f8B+ Qe7 f6 c5 b6 f3 b5 e4 b7 e3+ Kg3 f2 b6 c4 f7 c3 Bh3 f1B Qd3 c2 Qb5 a4 Ne2 a3 Bf5 a2 Nd2 a1N Nc3 Bd7 Bb2 c1R Nd1 Ra3 Bc3 Nf6 g8N Nb3 Bg7 Nc6 f8B Nba5 Rg1 Bd3 Re1 Ne8 b8B+ Nc7 b7 Be4 Ba7 Ne6 Nf6 Nf4 Rh1 Bc2 Ba1 Be8 Bb6 Ba4 Rh2 Nb3 Ba5 Rg8 B5c3 h4+ Kf3 h3 Kg3 Nba5 Rf2 h2 Rf3 Ne6 b8Q+ Nc7 Q8b7 Ne6 Qb2 Rh8 Q7b5 Rh5 Rf4 Bf7 Re4 Nf4 Re6+ Kc7 Rd6 Qe6 Rd8 Be8 Bh6 Bf7 g7 Bg6 g8Q h1N+ Kf3 Nb7 Bhg7 Nf2 Kg3 Nba5 Ra8 Rh2 Ne8+ Kd7 d6 Rh5 Bc2 Rd5 Bd3 Qf7 Rd8+ Ke6 d7 Be4 Bd6 Kf5 Bdf8 Qe6 Bc2 Kg5 Bb1 Bg6 Bf5 Rc5 d5 Kh5 d6 Rd5 Rc8 Kg5 d8Q+ Kh5 Qd7 Kg5 Kf3 Kh5 Rd8 Kh4 Be4 Kh3 Qe7 Kh2 Bf5 Kh1 Kg3 Kg1
NQN1r3/3rpR1P/1N5b/1nB5/4K2R/QrN4q/3RNnk1/R1Q1nrb1 w - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 f4 h5 g5 Kd7 g6 Nf6 Bh3 Ng8 Bg4 hxg4 f6 Kd6 f5 Be6 Ra2 Kd7 Ra1 Bf7 gxf7 Rh3 Qf3 Rh5 Qd1 Rh8 Kf2 Kd6 Ke3 Ke5 b4 g5 d4+ Kd6 h4 c5 b6 a5 b5 g3 b7 g4 h5 a4 b6 g2 h6 a3 h7 g3 Ne2 g1N Nbc3 g2 Ke4 a2 Be3 c4 Rh4 Bh6 f8Q Ra6 f7 Qe8 f6 Nd7 b8N Ra5 b7 Ra3 Qc1 Nf3 Na6 g1B Nc7 Qc8 b8Q Ne1 Qa7 Nb8 Na8 Rb3 Qaa3+ Qc5 Qc8 Nc6 f8R Na7 f7 Nb5 Qe8 Nc7 Qb8 Nf6+ Kf5 Ng4 Ke4 Kd7 d6 Ke6 d7 Qh5 d8R Nb5 d5+ Kf6 Rb1 a1R d6 Ra2 d7 Rd2 Bc5 Kg5 Ra1 Rg8 Rc8 Rh8 d8N Nf2+ Ke3 Rd4 Nb7 Rd7 Nd6 Qg4 Rfd8 Re8 f8N Qg2 Rc6 Qg4 Nc8 Qh5 Rh2 Qh4 Rf6 Kg4+ Nf4 Kg3 Rf7 Qg4 Rh5 Qh3 Rh4 Bg7 Ne2+ Kg2+ Kf4 Bh6+ Ke5 Rb7 Nd7 Ra7 Na4 c3 Ndb6 c2 Nac3 Rc7 Rd2 Rd7 Qcb2 c1R Qb1 Nc2 Qbb2 Rf1 Qc1 Nd6 Kd5 Ne1 Kd4 Nb5+ Ke5 Ng4+ Ke4 Nf2+
2b3R1/b1Q1Q2N/RNrb2bN/R2pqQ1R/Bq1N4/4k1NP/1nr5/2n1K3 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 gxh5 a5 b4 Rh7 b6 Kf7 b5 Rh8 Ba3 Ke8 Bb4 axb4 c4 Kf7 f4 Kf6 b7 e5 c6 g5 h6 d5 c5 b3 h7 b2 b6 e4 c7 g4 c6 g3 Nd2 b1B Qe2 g2 Ndf3 e3 Nd4 Qd6 Ra6 Nd7 b8Q Qa3 b7 Ke7 f6+ Kd6 f5 Kc5 f7 Bg7 f8Q+ Ne7 f6 Bh6 f7 Rg8 h8N Ne5 Qc2+ Nc4 Qf5 Ra7 Nge2 g1B Ng3 Nb2 Bb5 e2 Ba4 Rg6 Qe8 Qa1 f8N Bf4 Nf7 Bd6 Nh7 Rf6 h3 Ng6 Qe7 Ne5 Nh6 Ra8 Qa7+ Kc4 b8R Ned3+ Kd2 Nc1 Ke1 Bc2 Rb5 Be4 Rba5 Kd3 Qb7 Be3 Rf1 Bg1 Rf4 Ke3 Rh4 Ra7 Rh5 Re6 Qg4 Bg6 Qf5 Qa3 Qb6 Rb7 Qa7 Rb5 Qb8 Rc5 Qa7 Rc2 Qc5 Bb7 c8N Qb3 Nb6 Bc8 c7 Qc4 Nb5+ Qd4 Qc4 Qe5 Qc6 Ba3 Qc4 Rc6 Nd4 Bd6 Qc5 Bd7 c8R Be6 Rh8 Bc8 Re8 Rc4 Na8 Rc7 Rg8 Rc2 Qa7 R7c6 Nb3+ R2c5 Qac7 Rc2 Qf4+ Kd3 Qfg5 Ba7 Qf5+ Ke3 Nb6 Qe4 Nd4 Qe5 Qff6 Kd3 Kf2 Kd2 Qf5 e1Q+ Kf3 Q1e3+ Kg2 Qa3 Kf1 Ke3 Ke1 Qb4+
7K/7R/1QQ2nB1/1rNp1N2/Q2B1PkN/qn1Nq1r1/2r3b1/1Bb1QQ1r w - - 0 1 legal: proof: a4 c5 d4 b5 dxc5 f5 axb5 f4 f3 Bb7 e3 Ba6 exf4 Bc8 b4 h5 g4 g6 f5 Qc7 f4 Qa5 Ra3 Qd8 Rg3 Nh6 fxg6 Ng8 g5 Nc6 Rg2 Nb8 Rg4 hxg4 Kf2 d5 Kg3 Kd7 h4 Ke6 c4 Kf5 h5 e5 Kh4 a5 g7 g3 h6 g2 Kh5 e4 b6 e3 h7 e2 b5 e1Q b7 a4 b6 a3 c6 a2 c5 a1R g6 Qa5 c7 Ra3 c6 Bb4 Qe1 Rd3 Ne2 g1R Nbc3 Re3 Ne4 Rg4 Bb2 Ra3 Nc1 Bd7 c8B Qa4 c7 Qd1 Nc5 Rd3 Bd4 Ne7 Kh6 Qa4 g8Q Rh4+ Kg7 Rf3 Qe8 Qb3 N1d3 Nbc6 b8Q Qd1 b7 Rf8 h8N Ra1 Qa8 Ba5 b8Q Kg4 Qa6 Bd2 Qbb6 Qe2 Bg2 Rf2 Be4 Na5 Rh3 Bf5 Qa4 Qe3 Be6 Ra2 c8Q Rc2 Qcc6 Rg2 Bf7 Qa8 Rh2 Rh3 Be8 Rhg3 Rh7 Rh2 Qa6b5 Ng8 Qbb1 Rc3 Qf1 Nf6 Qbe1 Rc2 Bf7 Nd7 Be8 Rf6 Kg8 Qa6 g7 Bc1 Ng6 Nb3 Nh4 Rh1 Kh8 Re6 g8N Nf6 Ne7 Bg6 Qc4 Qa3 Nef5 Re7 Q4a4 Rb7 Qbc7 Bh5 Bg6 Rb4 Q7b6 Rb5 Qfe2+ Kh3 Q2f2 Bf3 Qff1+ Kg4 Nb4 Rd2 Bb1 Bg2 Nbd3 Rc2
1B2n1Rq/2rP3Q/8/R3NQrN/Nqb3rQ/2r2KR1/bpn2R1N/k4N2 w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 a4 f6 g6 f7+ Kd7 b3 Nf6 bxa4 Ng8 a5 Ra6 Na3 Ra7 Nb1 Ra8 f4 Kd6 g4 Qd7 h4 Bg7 g5 Bc3 f5 Bd4 f6 Bb6 Bd3 Qd8 Bf5 gxf5 g6 Kd7 Qc2 Be3 Qd1 Bg5 hxg5 Qf8 Kf1 Qe8 Ke1 Qd8 Ke2 Kd6 f8N Kc5 d4+ Kb4 a4 b5 g7 c5 d6 h5 f7 e5 a6 h4 a7 f4 d7 e4 a5 c4 a6 e3 g6 c3 d5 c2 d6 Kb3 Qf1 h3 Ra5 b4 Kf3 Nf6 g8R h2 g7 e2 Ng6 e1Q f8R Rh4 Ne5 Nc6 Nd2+ Kc3 Qf2 b3 Nf1 Ne8 Be3 Rb8 a8Q Kb2 a7 Qb4 Qb7 Rg4 a8N Rg5 Qa7 Rb7 Nb6 Rc7 Na4+ Ka1 Qb7 c1R Ba7 b2 Bb8 Qf6 d8Q Be6 Qh4 Bb3 Qd7 Ba2 Qf5 Qh6 d7 Qh8 Qfh7 Rc2 Qb5 Rcg2 Qbd3 R2g4 Qdf5 Nd4+ Kf2 Qb6 Ngf3 Qb4 Rg1 h1R Rg3 Rh3 N3h2 f3 Ke3 f2 Rf7 Nc2+ Kf3 Rc8 Rgf8 Bb3 g8N Rc7 Nf6 Bc4 Rg8 Ba2 Nd2 f1B Nh5 Ba6 Ndf1 B6c4 Rf6 Qc5 Rd6 Qb6 Rd2 Qb4 Rf2 Rc8 Kg2 Re4 Rg4 Rc3 Rg3 Rf4 Qfg6 Rfg4 Qf5 Ne3+ Kf3 Rc7 Qe4 Nc2+ Qd3 Ne3 Qdf5 Nc2+
2R2Qr1/1P1QbB2/kbR1n2R/1b1QB1rB/4QR1n/4Q3/1Kp2N2/1b2q2q w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Ba6 cxd5 Ra8 Nc3 Nd7 Na2 Bb7 axb5 Nb8 b6 Ba6 b5 Bc8 Nb4 axb4 g4 Kd7 f4 h5 d4 e5 Kd2 c5 Kc2 h4 g6 c4 g5 c3 d6 e4 d5 h3 g7 e3 f6 h2 g6 e2 f7 e1B b7 Bd2 f5 Bf4 f6 Rh6 b6 Qc7 Qf3 Nc6 b8R Nge7 g8B Bg7 f8Q Ra5 f7 Bfe5 b7 Ra8 Qe4 Ra5 Bf4 Bd4 Nh3 Bh8 g7 Nd8 Be2 Ba7 Be5 Rg6 Bh5 Ne6 Nf2 Nf5 Rac1 Nh4 Ra8 Bc5 Ra6 Ba7 Rc6 b3+ Kb1 Rg5 Rcf1 c2+ Kb2 Qd8 Qe3 Qe8 Qe4 Kd8 d7 Rg2 Qc5 Bb6 f8Q Rg5 Qa3 Ra8 Bgf7 Rb8 g8R Bf6 Qac5 Be7 Qce3 Ra8 Rh8 Rb8 Rh6 Ra8 Rhg1 h1Q Rg4 Rb8 Rf4 Ra8 Rd6 Kc7 d8Q+ Kb8 Rc6+ Ka7 d6 Ka6 d7 Rb8 Qc7 Ra8 d8Q Bd7 Qd6 Rb8 Rc8 Bb5 Qdd5 Ra8 Q8d7 Rb8 Ka1 b2+ Ka2 b1B+ Kb2 Qd8 Rff6 Qc7 Rf4 Qc4 Rd1 Qe2 Rd4 Qed1 Rdc4 Qde1 R4c6 Ra8 R8c7 Re8 Rc8 Rd8 Qg7 Rh8 Qf8 Rhg8
RN1n4/1rRr1QPn/2q1N2k/q1RN2N1/3K4/1Q1B2p1/2q3qb/1Qq2N1Q w - - 0 1 legal: proof: c4 g5 d4 b5 f4 d5 fxg5 Kd7 cxd5 b4 e4 b3 d6 Ke6 d7 Bh6 axb3 Kd6 b4 Bg7 b5 Bf8 g4 Ke6 d5+ Ke5 d6 h6 g6 Bg7 g5 Bf8 g7 Bb7 g6 Bd5 exd5 Kf6 Bg5+ hxg5 Ke2 a5 Kd3 c5 h4 e5 b4 a4 b6 a3 h5 g4 b7 Kg5 b5 f5 b6 g3 h6 a2 h7 f4 Nd2 f3 Qb3 f2 Ne2 Nc6 b8N Ra3 b7 Qf6 d8N Ra7 Rc1 a1Q d7 Qa2 d6 c4+ Ke4 c3 Nf4 c2 Bd3 f1Q Nd5 Q1f2 Nf1 Qg2+ Ke3 e4 Ne6+ Kf5 Ng5 Nd8 Rh2 Qc3 Rh3 Nf6 g8Q Qc6 g7 Kg6 Kd4 Be7 Rh5 Qb1 Re1 c1Q Qe6 Rf8 h8Q Rf7 Re2 Bf8 Rc2 Re7 Qeg8 Nh7 Rc3 Qbc2 Rc4 Nf7 d8N Rd7 Nde6 Nd8 Rc5 Be7 Rh1 Bf8 Rg1 Kh6 Qf7 e3 Qb1 Re7 d7 e2 Qb3 e1Q Qb1 Qh3 Rg2 Qa5 Rd2 Q2d1 Rdc2 Qg2 R2c3 Qcb5 Rc7 Qc6 Rc5 Qdc2 Na6 Q2d1 b8Q Qdc2 Q8b3 Rb7 Nb8 Re8 Qhg8 Bd6 Qf3 Re7 Qgf7 Bf4 Qe4 Be3+ Ke5 Qh3 Qh1 Bg1 Ke4 Bh2 Kd4 Qhg2 Nh3 Rb5 Nhg5 Nb7 d8R Rd7 Na6 Rb6 Ra8 Nd8 Nb8 Rb7
QB1brQ1K/1Rbpb3/1P5q/1R6/4k3/qbQb1RnN/2N3N1/1nRR1N2 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 Kf7 exf5 c4 f6 g6 f5 c3 dxc3 Bh6 c4 Kf8 f7 Kg7 c5 Kf6 Qd3 Bf8 Qd1 Ke5 f6 Ke6 h4 a6 g4 Nc6 g5 Qb6 Bd3 Nb8 Bf5+ gxf5 g6 Qd8 Rh3 a5 Rh2 Ra6 Rh1 Rd6 Be3 Rd3 Bd2 Rg3 Bc1 Rg5 hxg5 Ba6 Ra3 Bb7 Ra1 Bc8 Kf2 Ke5 Kf3 h5 b4 f4 c4 h4 Kg4 h3 g7 h2 g6 f3 Kg5 e6 b6 f2 c6 f1B c5 a4 b7 a3 b5 a2 c7 Rh7 b6 Bb5 c6 Qe7 Qa4 Kd5 Bf4 e5 Nd2 e4 Rf1 a1B Nh3 e3 Qa8 e2 Rf3 e1B Nf1 Na6 b8N Bb7 c8R Ba4 c7 Qe6 Nc6 Bd4 Nb4+ Ke4 Nc2 Be7 f8N Qd6 Ne6 Nh6 g8R Bdc3 g7 Nb4 Kg6 Bb3 f7 Bg3 f8Q Bcf6 Rb8 Rh8 c8R Bc6 Rb7 Na2 Qa5 Bfh4 Qc3 Qa3 Bb8 Bc7 Nef4 Bb5 Ng2 Nf5 Rg1 Bd3 Rh1 Rh5 Rh8 Bhg5 g8Q Ng3 Kg7 Bed8 Rh6 Bge7 Kh8 Re5 Rh5 Re6 Rg1 h1Q Rb5 Re5 Nh2 Re6 Rd1 Re5 Nf1 Re6 Qa5 Nc3 Qgg7 Nb1 Qgc3 Bh4 Qa7 Re8 Qa8 Bhe7 Rc1 Bf4 Rcc5 Bfc7 Rd5 Bdc4 Rd2 Bd3 Rdd1 Qh2 Nf4 Qd2 Ng2 Qh6#
1N1k2n1/B6q/N2b1KR1/bbN2BPr/1N1NQQ2/rpr3B1/1b2QQq1/8 w - - 0 1 legal: proof: b4 d5 e4 f5 exf5 a5 bxa5 g5 f4 d4 f6 d3 a3 Qd5 f5 Qd6 cxd3 Qd7 d4 Qd6 d5 Qd8 g4 Bh6 h4 Qd6 h5 Nd7 a4 Nf8 Rh4 Ng6 hxg6 Bf8 Rh1 Nh6 Ra3 Ng8 Rf3 Qd7 Rf4 gxf4 g5 Qd8 Kf2 e5 Kf3 h5 Ke4 b5 d4 c5 d6 h4 d5 c4 g7 c3 d7+ Kf7 a6 b4 a5 f3 d6 f2 a7 h3 a6 c2 Be3 c1B Nc3 b3 Nd5 h2 Bh3 f1R Nb4 Rf2 Ne2 Qc7 d8B Ke8 f7+ Kd7 f6+ Rf5 Nd4 Rh6 Qe2 Ne7 g8N Qc3 Bc7 Bg7 f8Q Rg6 f7 Nd5 Ne7 Qc4 Nec6 Ne7 Rf1 h1Q+ Rf3 Rb8 a8Q Qg2 a7 Ng8 Qb7 Qa6 a8N Qa7 Bf2 Re6 Bg1 Rff6 Bf5 Ba3 Kd5 e4 Rh3 Bh8 Rh6 Rg6 Be3 Rg7 Rg6 Rh7 Bg1 Rh5 Bf2 Bf6 Bg3 Bd8 Bb6+ Bc7 Bc5 Bb2 Bb6 Qa1 Ba7 e3+ Be4 Rf6 Ke5 Rf1 Bc2 Rc1 Kf5 Ne7+ Kf6 Qb1 Be4 Rc3 Bc2 Qd5 Bf5+ Qe6+ Kg7 Qf1 Bg4 Rc1 Bc5 Qf3 Qd3 e2 Bh3 Ra1 Ba7 Ng8 Qba6 Qg2 Qe4 Ba5 Nc7 Rh6 Qc4 Ra8 Nca6 Ra3 Qcc2 Bb7 Qb8 Bc7 f8Q Ba5 Qf2 e1B Qce2 Rh4 Na2 Beb4 Qbf8 Rh8 Q8f4 Rc8 Ncb8+ Ke8 Bg4 Rc3 d7+ Ke7 d8N Bd6 Bh3 Bc6 N2b4 Bb5 Nb7 Rh6 Nbc5 Kd8 Bg4 Rh1 Bh3 Qg4 Kf7 Qh4 Bf5 Qh6 Ke6 Rh5 Kf7 Qh7+ Ke6 Ne7 Kf6 Ng8+
5K2/1nNp2Q1/1kP1b1QN/b1N1B1BB/1B2Q3/8/R2nrQ1n/b1Qrr1n1 w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 b4 Rh6 f5 Nc6 g5 Rh8 g6 Nb8 Ra3 Qb6 Rb3 Kd8 Rg3 Qa6 Rg2 Qa2 Rg4 Qf7 gxf7 hxg4 Kd2 Kc7 Kc3 g5 Kc4 a5 Kd5 e5 h4 a4 c4 e4 b6+ Kb7 h5 e3 c6+ Ka6 c7 g3 c5+ e2 h6 g4 h7 g2 b7 a3 b5+ Ka5 c6 e1R b6 a2 Ne2 a1N Nd4 g1N Nb5 g3 Nd2 g2 Be2 Nb3 Rh2 Na6 b8Q Ba3 f8Q Rf1 b7 Bd6 f7 Bf4 f6 Rf2 Qg7 Be3 Kd6 Nh6 Ke7 Kb6 f8B Rg8 h8N Nd4 f7 Rf6 Ne4 Rf2 Nc5 Bd2 Bh5 Ba5 Bg5 Nb3 Qc1 Ng4 Ke8 Ra7 Qa8 Rd2 b8B Rd1 Qg6 Bb7 c8Q Nd2 Nc7 Rg7 Qe4 Rg6 Bfe7 Re6 f8Q Re5 Qg6 Re2 Nf7 Ree1 Nh6 Re2 Rh1 Nh2 Qf2 Rde1 Kf8 Rd1 N5e6+ Nc5 Qce8 Ba6 Qe4 Bc4 Q8g6 Nhf3 Rh3 Nh2 Ra3 Rb7 Ra2 Bd5 Nd4 Be6 Nb3 Rde1 Qff6 Ra7 Qfg7 Nb7 Bb4 Rd1 Na6 Ree1 Be5 Re2 Qae8 Ree1 Qef7 Ra8+ Ke7 Rf8 Qf1 Rf2 Nbc5 Rfe2 Nc7 Nh3 Bgf4 g1B Kf8 Bd4 Qf2 Ng1 Bg5 Ba1
1Qr2qk1/1rp1B3/1BQ1N3/4B1Pb/2n1N1Kn/p2B2n1/2rRB2b/3Q1NQ1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 fxg5 h6 g6 h5 b4 Bb7 g4 Bc6 g5 Bd7 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 a5 h4 e5 d4 e4 b6 e3 f6 a4 f7+ Ke7 b7 g3 Kf3 e2 b5 e1R h5 g2 d6+ Ke6 d7 a3 d5+ Ke7 b6 Ra6 h6 Nc6 b8Q Re3+ Kg4 Bg7 f8N Nd4 h7 Re2 b7 Rd2 Rh2 Bh6 g7 Kf7 d6 Nf3 Qa8 Nd4 b8Q Ne2 Nc3 Ra5 Ne4 Rad5 Nf3 g1N Qc6 Bb7 Ne6 Ng3 Be2 Rc2 Be3 Rb5 Nfd2 Nf3 Bb6 Ne7 Qg1 Nef5 Nf1 Qf8 d8B Nd2 d7 Nc4 Be7 Nh4 d8Q Rg8 h8B Bc8 Bbc5 Rb7 Qd1 Bd7 Bf2 Be8 Ba7 Kg6 Bd3 Kh7 Bb6 Bg6 Rd2 Bh5+ Kh3 Qf2 Be2 Rc8 Bd3 Qf8 g8B+ Kg6 Bf7+ Kh7 Be5 Bg7 Bg6+ Kg8 Bf5 Bf7 Bg4 Bh5 Bge2 Bh8 Bed4 Be5 Bb2 Ngf5 Ba1 Bh2 Be5 Bf7 Kg4 Ng3 Nf2 Bg6 Ne4 Bh5+
2k2KN1/5BPq/3R3p/3QN2r/1Q1B1B2/n4rp1/1bqBNQ1b/2BNb2n w - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 f5 axb5 f4 d6 f3 gxf3 Qh4 f4 Qe7 f5 Qd8 b4 g5 h3 g4 Ra2 g3 Rd2 Bb7 Rd3 Bg2 d5 Bf3 Rd4 Bg4 hxg4 exd4 Kd2 Kd7 Kd3 c5 Kc4 a5 e4 h6 f4 a4 g5 a3 e5 a2 f6 a1B f7 d3 g6 d2 f5 Be7 f8N+ Kc8 g7 Na6 f6 Qe8 d7+ Kb8 d8B Nc7 d6 Qh5 e6 Kc8 d7+ Kb7 b6 Ra6 b5 Ra7 f7 Na6 Nc3 Qf5 Nge2 Qg5 Ng6 Bf6 f8Q Be7 Ne5 Qh4+ Kd5 c4 Qf2 Kb8 b7 Bb2 Bb6 Bc5 e7 Nb4+ Ke6 Ra5 Kf7 Nc2 e8N Nf6 d8B Ne4 Bg5 Na3 Nf6 Rg8 Qb3 d1Q Bgd2 Qc2 Nd1 c3 Qd5 Rc8 Ng8 Rf8+ Kg6 Bb4 Bd4 Rf3 Bg2 Kc7 b8B+ Kc8 b6 Qg5+ Kh7 Qg6+ Kh8 Qf5 Rh5 Bc5 Rg5 Rb5 Rg6 Ra5 Rd6 Qg6 Qe1 Nf2 Bc7 Nh1 Qf2 Qge4 Bh3+ Qf5 Bg4 Bb4 Bh5 Rc5 Bf7 Ba5 Nf6 Qfe4 Kg8 Qh7+ Kf8 Bb4 B4e3 Ra5 Ng8 Bc5 Bf4 Bd4 Qh2 Bg1 Qf2 Bh2 Bd8 Qb3 Bdg5 c2 Bfe3 Bc3 Bd4 Qb1 Bdf4 Be1 Bcd2 c1B b7+ Kb8 Qc4 Qbc2 Qd5 Bb2 Bc1 Kc7 Bfd2 Rb5 Bgf4 Qc5 Nd7 Kd8 b8Q+ Qc8 Qbb7 Qcc2 Qb6+ Kc8 Ne5 Rbb3 Qb4 Rbe3 Bg5 Rf5 Bf4 Rf3 Nc4 Rg5 Ne5 Rh5
5B1K/N4BR1/2bQ1p2/1PB1Nrb1/Q1BnNr2/3N1Nn1/1q2kp1r/4r2Q w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 g5 fxe5 h5 a4 h4 axb5 h3 gxh3 Na6 h4 Rh6 h5 Nb8 Ra6 Rh7 Rf6 Rh8 Rf4 gxf4 b6 Kd7 Kf2 c5 Kf3 a5 Kg4 a4 Kf5 a3 d4 c4 h4 f6 Kg6 a2 e4 a1R e6+ Kd6 e7 f3 e8Q f2 h6 c3 h5 c2 h7 R1a6 b7 Bh3 e5+ Kc7 d6+ Kb6 e6 R8a7 d7 Bh6 d5 Qc7 d8B Bg2 d6 Bc6 e7 Bg7 d7 Ba4 h6 Bb5 Nf3 Ra3 Nbd2 Na6 b8Q+ Rb7 Rg1 Ra5 Ba3 Kc6 Rg5 Qc8 Bb6 Nc7 d8N+ Kd6 Nc6 c1R Na7 Be2 Qea4 Ra1 e8B Bb5 Bf7 Qe8 Be2 Bc6 Qh1 Re5 Nd4 Re4 Bc4 Qe5 Rg1 Rf4 Ne4+ Ke7 Rg5 Ne6 Rg1 Rd7 b5+ Rd6 Rg2 Re1 Qf8+ Kd7 Qb8 Rd5 Bf8 Rc5 Rg5 Rd5 Bbc5 Ne7+ Kh5 Rg8 h8N Nf5 h7 Bh6 Ng6 Rg7 h8N Rh7 Nf3 Qb2 Ne7 Ng3+ Kg6 Rdf5 Nd5 Nh5 Nb4 Ng3 Nd3 Nd4 Ned2 Bg7 Qe5 Rh2 Qb8 Bh6 Kh7 Nb3 Kg8 Nd4 Rg7 Bg5 Ng6 Rd5 Be8+ Ke6 Qd6+ Kf5 Bf7 Rde5 Nb1 Ke4 Nbd2+ Ke3 Ne4 Ref5 Nge5 Bh6 Kh7 Ke2 Kh8 Bg5+
QR6/5n2/1rPN2KQ/2Q5/1rN2r2/RrQpb1qp/nQ1R1bk1/3R2BN w - - 0 1 legal: proof: d4 b5 e4 f5 exf5 Kf7 a4 c5 dxc5 g6 axb5 Bg7 f6 Ke6 f7 Bf8 g4 Bg7 f4 Bh6 f5+ Kf6 Bd3 Ke5 f6 Bf8 Bf5 Bb7 h3 Bf3 g5 Bg4 hxg4 gxf5 Bd2 Kd5 Bc1+ Ke6 Kd2 Ke5 Ke3 a5 b4 h5 c4 d5 c6 h4 c7 a4 c8N a3 g6 e6 b6 h3 g7 a2 b5 Qc7 g5 Qb7 c5 Nh6 g8R Ra3+ Qd3 Qc6 g6 Bg7 f8Q Rb3 b7 Rb4 f7 Qc7 c6 Na6 b8R f4+ Kf3 d4 b6 Bf6 g7 Bg5 b7 Qd6 Qb3 d3 Nd2 Kd4 Qc2 e5 Nc4 Rb3 Ba3 Nb4 Qc3+ Kd5 Rd1 a1R Rd2 Na2 Ne2 Rab1 Bc5 Rb4 Re1 R1b3 Red1 Qg6 N8d6 e4+ Kf2 f3 Kg3 Bf4+ Kh4 e3 Ng3 f2 Nh1 Qg3+ Kh5 f1R Ra8 e2 b8Q e1B Bg1 Rf3 Ra3 Bf2 Qb7 Bg5 Kg6 Rf4 Qfa8 Rb6 f8Q Nf7 Qfe7 Rhh4 Rb8 Rhg4 g8Q Rh4 Qgg7 Rhg4 Nf5 Rh4 Qd6+ Ke4 Qc5 Kf3 Nfd6 Kg2 Qh6 Rhg4 Nb2 Rfb4 Nbc4 Be3+ Kf5 Ng5 Kg6 Rf4 Qbg7 Rh4 Qb2 Rf4 Qgc3 Nf7+
3B1bq1/1NB1B2R/2nRqQ1p/1P3q1Q/2p3R1/1r1Qr2Q/qB1n1k2/K6B w - - 0 1 illegal: No possible last move, all moves rejected
1Nr1r2r/2Q1Q1n1/1NN1BP2/2pN2k1/4K1qp/1nNr3q/1R3Q2/1B1bBQ2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 b4 Na6 g4 Kd7 h4 Rb8 f4 Bg7 f5 Bb7 Ra3 Ra8 Rf3 Bf8 Rf4 gxf4 g5 Bc8 g6 Bh6 Bc4 Ke8 Bf1 Bg5 hxg5 Nb8 Kf2 h5 Kf3 a5 d4 e5 g7 Kf7 b6 c5 g6+ Ke8 d6 h4 b5 a4 f7+ Kd7 f8Q a3 b7 a2 f6 Ke6 d5+ Kf5 d7 a1Q d6 Qa6 b6 Nc6 b8N Qa2 b7 Qa3+ Bd3+ Kg5 Ne2 Nh6 g8B Nd4+ Ke4 Qa7 g7 Qa4 Be6 Qc7 d8Q Qcd7 g8Q+ Qg7 d7 Qb3 Qc7 Nhf5 d8N Qa3 Rf1 Nb3 Bd2 Qg6 Ba5 f3 Nec3 f2 Ndc6 Bd7 Rh1 f1R Rh2 Rf3 Qe7 Qg7 Bc2 Rd3 Qf1 Be8 Qh7 Bh5 Nd5 Bd1 Nd7 Rac8 b8N Qg8 N7b6 Ng7 Bd7 Qe6 Be1 Qh3 Nbc3 Qa4+ Nd4 Qc4 Bb1 Qa4 Rb2 Qb4 Ne3 Qc4 Be6 Qb4 Kd5 e4 Qh2 Qa4 Qhf2 Qc4+ Ke5 Qa4 Ned5 e3 Ndc6 e2 Qc7 Qb4 Qe7 Qbg4 Qc7 Ne8 Qhf7 Ng7 Qfe7 Qhg2 Qed8 Rg3 Bd2+ Kh5 Bef5 Rd3 Qdd6 Q4h3 Kf4 e1R Qe6 Re2 Be1 Ree3 Qed7 Ree8 Qe7 Qgg3+ Ke4 Kg5 Be6 Qgg4+
Q2Bn1Q1/1r1Nn1Q1/pqQBN1b1/R2q3k/4B3/p4P2/1n1nB3/rB3KN1 w - - 0 1 legal: proof: h4 g5 hxg5 f5 b4 d5 c4 b6 cxd5 Be6 e4 Kd7 exf5 Ke8 a3 Bg7 b5 Bc8 Ra2 Bc3 Ra1 Bb4 axb4 Kf7 Ra2 Ke8 Ra5 bxa5 d4 Kf7 g4 e5 g6+ Kg7 f6+ Kf8 b6 h5 f3 c5 b7 a6 f7 Kg7 g5 a4 b5 c4 d6 a3 b6 h4 d7 h3 d5 e4 d6 c3 Bf4 h2 Nd2 e3 Qa4 e2 Nb3 c2 Qc6 c1N Nd4 Rh7 f8Q+ Kh8 Ne6 Re7 g7+ Kh7 Be5 Ra7 g6+ Kh6 Bg3 Qe8 d8B Nf6 g8B+ Rg7 d7 Kh5 Bd6 Rh7 g7 Qg6 Bf7 Rh8 g8B Nb3 Qg7 Ne8 Bh7 Nd2 Kf2 e1N Be2 Nb3 Kf1 Nd3 Bfg8 Qf6 Bf5 Nb2 Bgh7 Qh6 Bb1 Nd2+ Ke1 Qg5 Bhe4 Qd5 Kf2 Ndc4 Kf1 Rh7 Qc7 Nc6 b8Q Ne7 Qa8 Rb7 Qc6 Nd2+ Ke1 Rc7 b7 Rh8 b8N Rb7 Ba5 Rh6 d8Q Rg6 Nd7 Rg4 Nh3 Rg1+ Kf2 Rc1 Rd1 h1Q Ng1 Qg2+ Ke1 Qg6 Bb6 Nf6 Qdg8 Ne8 Bd8 Qf6 Bbc2 Ra1 Bb1 Qfd4 Rc1 Qb4 Rc5 Qb6 Ra5 Nc7 Ndc5 Bd7 Kf2 Be8 Ke1 Bg6 Nd7 Qbb5 Kf2 Ne8 Kg2 Qb4 Kf2 Qb6+ Ke1 Nb3 Kf1 Nd2+
2nKQ1Q1/6Q1/B4nQ1/bpn3rb/RQ2NNP1/7N/B1b3rp/2Bb1kB1 w - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 a5 f4 e5 fxe5 a4 h4 a3 bxa3 Bd7 a4 Qc8 a5 Qd8 a4 Bf5 Ra3 Bc8 Rf3 Qf6 Rf4 gxf4 Qb3 Qe7 Qd1 Qg5 hxg5 Bb4 Bb2 Ba3 Bc1 Bf8 Kf2 Kd7 Kf3 c5 Ke4 h5 Kf5 c4 e4 b6 d4 h4 d6 Kc6+ d7 c3 a6 f6 Ke6 h3 d5+ Kc5 d6 f5 g6 h2 a7 c2 a5 f3 a6 f2 g7 f4 Nh3 f3 Qd2 Bb7 d8N Rh7 d7 Be7 Nc3 Nf6 g8Q Nc6 Qg7 Rc8 a8B Rh5 a7 Rg5 Ba6 f1B Kf7 b5 e6 Kc4 e5 f2 Ne4 Rc7 Qb4+ Kd3 Rg1 Bf8 e7 Ke2 e8Q Ne7 e6 Nc8 e7 Bc6 Ne6 Bg2 d8B f1B B8b7 Bf3 a8Q Rd7 Qb8 Rd2 Nef4+ Ke1 Qa8 Bd1 Bb6 Bd7 Rg3 Bd3 Bg1 Kf1 Bd5 Rg2 Ba2 Bf5 Re3 Bg6+ Ke6 Bh5 Qeg6 B3e2 e8Q Bd3 Qd5 Bd6 Kf7 Bc7 Kf8 Ba5 Qdg8 B3e2 Ra3 Bd3 Bce3 c1N Ra4 Nb3 Bc1 Nc5 Kf7 Nb6 Ke7 B3c2 Kd8 Nc8+
Bnq2RN1/r2k4/1K1N4/2r5/p1PNQ3/1pnR1RN1/2r1NQqp/2R3Qb w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 h4 Qa5 hxg5 Qd8 c4 Ba6 b4 Bc8 b6 Na6 b5 Nb8 Ba3 Bg7 Bb4 Bc3 dxc3 cxb4 c5 e5 Ke2 h5 Kd3 a5 Kc4 a4 f4 b3 g4 d6 g6 e4 f6 e3 g5 h4 g7 h3 c6 d5+ Kc5 e2 c4 e1Q f5 d4 f7+ Ke7 f6+ Ke6 f8Q d3 c7 h2 g6 d2 b7 Ra7 b6 Qe4 f7 Qe2 Qe1 d1R Nc3 Qe8 Rc1 Rd4 Bg2 Qe3 Ne4 Nc6 b8R Qg3 b7 Qc3 Kb6 Nge7 g8Q Rd6 g7 Bd7 c8N Rd4 Ncd6 Qg3 Rc3 Rd1 Rd3 Rb1 Qf2 Qg4 Ne2 Nf5 Rc1 Rb2 Rc8 Qg5 b8N Rc2 Rc7 Qed8 Qe8+ Nfe7 Bf3 Qc8 f8R+ Ke5 Qg6 Rh5 Q8h7 Be6 g8N Bd5 Qgg7+ Ke6 Bh1 Nd4 Nc6 Nb5 Rd7 Qg1 Rc7 Qf1 Qgg1 Nc3 N4g3 Bf3 Rd7 Rc5 Rb7 Nf5 Rg7 Ne7 Rgf7 Kd7 Ncd4 Ba8 Rf5 Bb7 Qg6 Nc6 Bd5 Nb8 Bg2 Ba6 Ba8 Bb7 R5f6 Bf3 Qe4 Bh1 Rff3 Qg2
K1n1NrQ1/2Q3p1/2N3N1/6RR/p2br1r1/5RQ1/P1pQ2Br/1k2qRnR w - - 0 1 legal: proof: c4 c5 b4 f5 d4 h5 g4 b5 gxh5 f4 d5 Bb7 Bb2 Bc6 dxc6 f3 c7 Nf6 bxc5 b4 c6 Nd5 Bc3 bxc3 exf3 Nf6 f4 Ng8 f5 Rh7 Qc1 Rh6 Qd1 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 d5 Kc5 Ke5 c8R Ke4 f4 a5 h4 a4 f6 c2 f5 d4 f7 d3 c7 e5+ Kb6 d2 Kb7 Ne7 c5 Na6 c6 Ng8 f6 Kd4 h6 e4 h5 e3 h7 e2 h6 Kd3 Bg2 e1R Nc3 Qe8 Ne4 Bb4 f8N Ne7 f7 Ng6 Nf3 Qe5 Nd4 Bc3 Nd6 Qe4 Ne8 Ne7 Ng6 Qg4 f8R Re3 Rf3 Qg3 Rd8 Qh4 c8Q Nc7 Qg4 Ne6 c7 Ng5 c8Q Qe1 Rd5 Nh3 Rg5 Ng1 Qc7 Nc8 Nc6 Bd4 Qgg3 Kc3 Rb1 Rf8 h8Q Rf4 h7 Rg4 Ra1 Kb2 Qg8 Ree4 Qe2 d1R h8R Rd3 R8h5 Rd2 Qe3 Re2 Qd2 Rf2 Bh3 Rh2 Bg2 Qf2 Rf1 Qe1 Qgf7 Kb1 Qg8 Ra5 Kb8 Rf5 Ka8 Rf8
1kn5/1nn3b1/2Rrq2R/1QNBqp2/Qb2Q3/2R4r/bB1BQPR1/qQK5 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e6 d4 Qf6 d6 Qg5 Nc3 Qd8 Nd5 Bb7 Nf4 Bc8 d5 e5 Ne6 Qh4 Nd4 exd4 Qb3 Qf6 Qd1 Qd8 Kd2 Kd7 e4 a5 h4 f5 b4 c5 h6 g5 h5 d3 e5 c4 e6+ Ke8 e7 Kd7 h7 g4 b6 a4 b5 a3 h6 g3 b7 g2 b6 a2 Nf3 g1B Qa4+ Nc6 b8Q Qc7 b7 Ra6 Rh3 Qb6 Bg2 Ra7 Ng5 Nf6 Ne6 Bh2 e8R Be7 Rg8 Ne8 Nc5+ Kd8 d7 c3+ Kd1 Ra6 Bd2 c2+ Kc1 Na7 Qa8 Bf6 b8Q Qe6 Qb1 Kc7 d8R Qe5 Rd6 Be6 Rhg3 Nc8 Rc6+ Kd8 d6 Bg7 d7 Bb3 Rd6 Kc7 Q8e4 Kb8 d8Q Nc7 Qde8 Rc6 Rdg6 Rd6 Qe2 Qe6 Bd5 Qe5 Rg2 Bf4 Qae4 Bg5 Rf8 Be7 Q8a4 Qe6 Rff6 Bef8 Kb2 c1N R6g3 Bc4 Rh3 Nb3 Rhh2 Na5 Kc1+ Rb6 Rh5 Qe5 Rc6 Nb7 Qbb5 Bb3 Rb1 Bc4 Rb3 Ra6 Rc3 a1Q+ Qb1 Ba2 Rh4 Rg8 h8Q Rb6 Qh7 Rh8 Qg8 Ra6 h7 Qe6 Rc2 Qae5 Rh6 Bd6 Qe8 Be7 Nb3 Bb4 R6c3 Rd6 Qeb5 Rf8 h8B Rf6 Rh7 Rh6 Rc6 Rh5 Rh6 Rh3 Nc5 Qe8 Be3 Q8e6 Rc3 d2+ Kb2 d1Q Bd2 Qb3+ Kc1 Qb2+ Kd1 Qa1 Kc1 Qf4 Re3 Bf8 Bb2 Qfe5 Rc3 Bg7
4N3/R1r1r3/RQ1br1pn/3N1NB1/RQR1r3/2nR1KPk/b3q1N1/Q2b3n w - - 0 1 illegal: No possible last move, all moves rejected
2r4b/8/q1BB2N1/p1qRn1q1/brQBKn2/RQp1RB2/2P2BQQ/r1k5 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 g4 h6 g6 Ba3 Nc3 Bc5 Ne4 Bf8 g5 h5 Nf2 Ba6 Ng4 hxg4 Bh3 Bb7 Bf1 Bc8 Kf2 Ke7 Ke3 Ke6 b4 Kf5 h4 a5 g7 c5 h5 d5 b6 c4 e6 g3 e7 g2 e8R c3 h6 f6 h7 Be7 b7 Na6 b8Q Qc7 b5 Qc4 g6 Kg5 b6 d4+ Ke4+ Kg4 b7 Nh6 g8Q Bd7 g7 Nc7 Rh5 Nf7 Rd5 Qc5 Nh3 g1Q Qd2 d3 Ra3 Ne6 Nf4 Ne5 Ng6 Ba4 Bg2 Nf4 Bf3+ Kg3 Qc7 Kf2 b8B Qg5 e3+ Kf1 Qh2 Ke1 Qb7 d2 Bd6 d1Q Qb3 Rc8 Qe6 Qd2 g8Q Qe2 Bd2+ Kd1 Be1+ Kc1 Bf2 Qa6 Qeh3 Qf1 Q3g2 Qa6 Qf7 Rg8 h8B Bf8 Qc4 Bg7 Qb7 Rb8 Qbb3 Rb4 Re7 Qh4 Kf5 Rc8 e4 Nf7 e5 Qh6 e6 Qg5+ Ke4 Ne5 Bd4 f5+ Ke3 Rb5 Re8 Rbb8 e7 Bf6 Bg7 Rb4 Bf8 Bh8 Bg7 Qg3 Bf6 Qg4 Bh4 Qg5 Bf2 Nc6 Bg4 Ne6+ Kd3 f4 Be2 f3 Bg1 f2 Bf3 f1R Bgf2 Rh1 Rf8 Rf1 e8B Nf4+ Ke3 Rg1 Rf7 Rh1 Re7 Rg1 Re4 Ne5 Bc6 Nd7 Re7 Rh1 Ke4 Kd2 Re6 Rb1 Re8 Kc1 Ke3 Ne2+ Kd3 Ra1 Re3 Ne5+ Ke4 Nf4
1kN2BRb/3n2Qb/4n1Q1/1B4pN/qb1N4/3pn1NQ/3P1B1r/QNK2rb1 w - - 0 1 legal: proof: a4 c5 e4 Nf6 b4 Rg8 b5 Rh8 Ra2 Ng8 Rb2 Qa5 Rb3 Qd8 Rb4 cxb4 g4 h5 gxh5 f5 exf5 b6 a5 Nh6 axb6 Ng8 Nc3 a5 h4 g5 f4 d5 h6 Kd7 b7 Kc7 b6+ Kd6 h5 e5 h7 b3 h6 b2 f6 b1N f7 a4 f5 e4 f6 a3 Qh5 a2 Kd1 a1B Nge2 e3 Bb2 d4 Ng3 Kd7 Bb5+ Nc6 b8N+ Kd6 b7 Kc7 Nd7 d3 b8N Bb4 f8Q Na7 f7 Nf6 Nc6 Kb7 Qg8 Be7 f8B Qa5 Rh4 Ne8 Nf6 Bf5 Ba3 Nc8 Bc5 Ra7 Qa2 Bb2 Qa1 Qa4 Rh2 Nb6 Qf7 Na3 Nb1 Ng7 Qh5 Be5 Kc1 e2 c4 e1B Bg1 Ka8 c5 Nc2 Nd4 Ne6 c6 Bb4 c7 Ne3 c8N Kb8 Rh4 Bf2 Qf7 Rg8 h8Q Nd1 h7 Be3 Qe8 Rf7 Rh6 Nd7 Rg6 Rgg7 Qg8 Bf2 h8Q Rh7 Rg7 Rh2 Qh3 Be4 Nfh5 Bh7 Qh8 Be3 Rg8 Rf1 Qg6 Bf2 Qhf6 Be3 Qe7 Bh8 Qeg7 Bf4 Bf2 Be3 Be1 Bg1 Bf2 Ne3+
4KRb1/NQ2B2p/R3Q1N1/1RN2p1P/r1n1N1n1/4q3/1bb5/kNbnrR1Q w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 d4 e3 g6 Bd3 Bg4 Bf5 d3 cxd3 Bh3 d4 Bg4 d5 Bh3 Be4 Bc8 Bf5 gxf5 Ke2 Ke7 Kf3 c5 Kf4 a5 Kg5 c4 h4 a4 b4 f4 d4 f5 g4 c3 e6 Kd6+ e7 a3 b6 f3 b7 c2 e4 a2 e5+ Kc7 b5 Kb6 d6 Ka5 d7 Ka4 d5 Kb3 h5 f2 b6 f1B e6 Bg2 d6 Bg7 Ne2 Bd4 Nec3 Be4 Ba3 Bg7 Rf1 Bg2 Ne4 Qc7 e8R Nh6 d8N Qc4 e7 Bf3 d7 Bc3 Rf8 Qb5 e8Q Ra4 Be7 Kb2 Ne6 c1N d8N Bd4 Nc6 Ne2 Na7 Qe5 N6c5 Nc6 b8Q Nc3 b7 Na5 Qc7 Nc4 b8R+ Bb7 Qec6 Qg3 Qe6 Be3+ Kf6 Bc1 g5 Ng4+ Kf7 Be2 g6 Bd3 g7 Bc2 g8N Qe3 Qdd5 Nd1 Qdc6 Ngf2 Ke8 Ng4 Ngf6 Rg8 Nd5 Rg6 Nf4 Rf6 Qed6 Re6 Ng6 Re5 Ng5 Re6 Qh1 Re5 Qe6 Re4 Nb3 Bd5 Rb5 Re5 Qb7 Re4 Qea6 Bg8 Qac6 Qf3 Qe6 Re1 Ne4 Qf2 N1d2 Qe3 Nbc5+ Ka3 Rab1 a1B Ra5 Ka2 Rbb5 Bd4 Nb1 Ka1 Ra6 Bdb2
RQ3Bn1/rp1N2r1/1r3q1N/1nNk4/1P2p3/b3Qn2/N2BQQb1/1Qr2BK1 w - - 0 1 legal: proof: b4 d5 e4 f5 exf5 a5 g4 h5 gxh5 a4 c4 Na6 cxd5 Nb8 a3 Ra7 Ra2 Ra8 Rb2 Ra6 Rb3 axb3 a4 Ra8 h4 Kd7 f4 Kd6 Kf2 c5 d4 e5 a5 g5 a6 c4 h6 e4 a7 c3 f6 b2 f7 c2 f5 g4 h7 Qe7 h5 Nd7 h6 Qe6 f6 Qe5 Qe2 Qh5 Bd2 c1N Nc3 b1R Na2 Be7 f8Q Rb8 a8Q Rb3 f7 Rd3 Qa7 Rg3 Nf3 Qh3 Ne5 Rc3 Kg1 Ndf6 Nd7 g3 Qa3 Rc4 Qae3 Qe6 Rh3 g2 Rh2 Kc7 d6+ Kc6 Rh3 Ra8 d5+ Kb5 Rh5 Ng4 Re5 Qf5 Re6 Bf6 Re8 Ne5 Rd8 Ne7 Re8 Rg8 h8Q Rg7 h7 Nb3 Qhg8 Qe6 h8Q Nd4 Qh1 Ra7 Qgh8 Qf5 Q8h4 Qg6 Qhf2 Ng8 Rd8 Bg5 Qe8 Qf6 f8B Bh6 Nb6+ Bd7 Kh2 Rg6 Bc3 Bg7 Ra8 g1R Bg2 Qd8 Bd2 Qe7 Qb8 Bc8 d7 Re6 d6 Kc6 Bh3 Rgg6 Qb1 Nb5 Bf1 Rc1 Kh1 Ng4 Kg1 Bb2 Na4 Rg7 d8N+ Kd5 d7 Rf6 Nc6 Ba3 Ne5 Rb6 d8N Qf6 Ndf7 Be6 Nd7 Nh2+ Qeg3 Bg4 Nh6 Bf3 Nac5 Bg2 Qge3 Nf3+
1NB5/Rb2bp1p/qb2qrn1/r1k4P/1nNN2Q1/1Q1Q3R/2R1b1Q1/5RKR w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 d5 c4 Na6 cxd5 Be6 b3 Nb8 Bb2 Bf5 Bd4 Bc8 fxe5 g6 Be3 g5 Bf4 gxf4 Kf2 Kd7 h4 c5 d4 a5 e4 c4 g4 a4 g5 f3 g6 c3 g7 a3 e6+ Kd6 e7 a2 e8R c2 b4 c1B b6 Ra6 e5+ Kd7 b5 Ra7 b7 Bb2 e6+ Kd6 b6 Nh6 g8Q Qc7 e7 Bh3 h5 Qc2+ Nd2 Ra5 Ne2 Bc3 Nc4+ Kd7 d6 Kc6 d7 Qb1 d8R Bb2 d5+ Kb5 d6 Bf5 d7 Be4 Kg1 Nf5 Nd4+ Kc5 Bh3 Nh4 Qg2 Rg8 Rc8+ Nc6 d8Q Rg6 b8N Rf6 b7 Ng6 Rc7 Bc1 Bc8 Qb6 Qa4 Bch6 Rf1 a1Q Qd1 Qa6 Qd3 Qd1 Qd7 Qb3 Qdg4 Qbb6 Rd7 Nb4 Red8 Bg5 e8R Be7 Rc7+ Bc6 Rdd7 Bd8 Re3 f2+ Kh2 Be7 Rh3 Bd8 Re7 Bh4 Re2 Bg5 Ra2 Be7 Rc2 Be3 Rb1 f1B Re1 Bd2 Kg1 Be2 Rf1 Bc3 Rd7 Be4 Nbc6 Bd2 b8Q Bh6 Ra7 Be3+ Qf2 Bd5 Qb7 Be4 Nb8 Bg2 Qbf3 Qe6 Qfg3 Bb7 Qg2 Bf4 Qfg3 Bc7 Qb3 Bcd8 Qgd3 Bb6
Q4Q1r/4np1K/2R3np/3R2b1/N1BR1bN1/4qp1b/NR1n1rkP/1R2QN2 w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 d5 c4 Na6 cxd5 Be6 b3 Nb8 Bb2 Bf5 Bd4 Bc8 fxe5 g6 Be3 g5 Bf4 gxf4 Kf2 Ke7 Kf3 c5 e4 a5 d4 c4 g4 c3 e6 Kf6 b6 Kg5 e5 Kh4 b4 a4 e7 c2 e8Q c1B g5 a3 d6 a2 b7 Ne7 d5 Qc7 g6 Qa5 b5 Nf5 g7 Qa7 g8Q Ng7 d7 Bfa3 d8R Nh5 e6 Bc5 b6 Nc6 b8N Qa3+ Nc3 Qa6 b7 Na7 e7 Qb6 d6 Nb5 d7 Qc7 Bc4 Ra4 Rb1 a1N Nge2 Kh3 Qgf8 Ng7 Ng3 Ba7 Qe1 Nh5 Nc6 Bae3 b8R Qe5 Nb4 Nd6 Nf1 Rg8 Nba2 Nf5 R8b2 Nb3 Rg1 Ra6 Na4 Rf6 Rg6 Qc3 Ke4 Nd2+ Kd5 Qa3 Rh6 Kg2 Ke5 f3 Rg6+ Bg5 Rh6 Ra6 Rd6 Nf4 Rc6 Bh6 Kf6 Ng6 Re6 Bf4 Rc6 Bb8 Kg5 Ne3 Kh6 Nd5 Qg7 Rb6 Qh8 Bc7 Qf8 Qb3 e8N Nde7 Nf6 Bf4+ Kh5 Qe3 Ng4 Bd6 Qd4 Rb3 Qa7 Bf4 Qa8 Rd3 Re8 Rc3 d8R Rc2 Rd4 Bf5 Red8 Bc8 Ne5 Bh3 R8d5 Nb3 Ng4 Rf2 Rg5 Nd2 Kh6 Rh8 Kg7 h6 Rf5 Rg8+ Kh7 Bg5 Bd5 Qd3 Re4 Nb3 Rfe5 Bcf4 Rd4 Qe3 Bc4 Nd2 Red5 Rh8+
2b3NN/5pQ1/1R1R1B1Q/1qQK1Nr1/3p2p1/br3q2/n2QQ1PR/1kn2R1q w - - 0 1 illegal: No proof kernel
2qb1R2/1Q1r2p1/2q1pQQB/Q1r1n2K/2Q2nP1/Bp1Nb3/b2N2Nk/2BB4 w - - 0 1 legal: proof: b4 d5 c4 a5 bxa5 h5 cxd5 f5 e4 h4 exf5 Nc6 a4 Rh5 g4 Rh8 Ra3 Nb8 Rg3 hxg3 h4 Kd7 f4 Kd6 d4 c5 h5 b5 h6 e6 a6 c4 a5 g2 Kf2 c3 Kg3 c2 f6 b4 Kh4 b3 a7 Rh7 f5 Qc7 f7 Ne7 a6 Qd8 f6 Nbc6 Be2 Bb7 Qd3 Bc8 Qc4 Rh8 h7 Bd7 Nf3 g1Q Kh5 Qa5 Ne5 Qc3 Bd1 Qa5 Nd3 Qg3 Rf1 Qa3 Nd2 Rg8 h8Q Nb4 Qh7 Qe1 Qg6 Rc8 a8Q Bc6 a7 Qa6 Qb7 Qe4 a8Q Bb5 Rf5 Rc5 Qaa7 Qc6 Qa5 Qc8 Rf2 Nec6 Rf1 Be7 f8B Ne5 f7 Na6 Rf6 Nc7 Rf5 Kd7 d6 Qc6 d5 Bd8 Be7 Rf8 Bg5 Re8 Bh6 Re7 f8B Rf7 Nf4 Ba6 Ng2 Bb5 Ba3 c1B Be7 Ba6 Beg5 Re7 Rf8 Rf7 Qf4 Bd3 Qc4 Bb1 Nf1 Bb2 Bc1 Bd4 Nd2 Re7 Rf5 Rf7 Rf2 Be3 Rf6 Ke8 d7+ Ke7 Rf4 Ba2 d6+ Kf8 Rf5 Nd5 Rf6 Bc7 d8N Nf4+ Kg5 Ke8 d7+ Ke7 Rf5 Kd6 Kh4 Qf3 Nc6 Bd8+ Rf6 Re7 Nb4 Qfc6 Nd3 Bb6 d8Q+ Rd7 Rf5 Bc7 Qdf6 Bd8 Qc2 Kd5 Nf3 Ke4 Qe2 Nh3 Kh5 Nf4+ Kg5 Rf7 Qc2 Bg1 Qfe7 Be3 Nd2+ Kd5 Kh4 Kd4 Qeg5 Rd7 Rf8 Bg1 Nge1 Ke3 Q5f6 Bf2+ Kg5 Bg1 Qcc3 Bf2 Qc4 Bg1 Nb2 Kf2 Nbd3+ Kg3 Ng2 Kh2 Kh4 Be3 Kg5 Nd5+ Kh5 Nf4+
2Nn3r/b1r2Nbp/1pN1qqB1/5bp1/RQK1n2R/Q3RQ1P/1Nk1NR2/8 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 f4 b6 f3 gxf3 Qe7 f4 Qh4 f5 Qd8 b4 Bb7 b5 Bd6 Be3 Bc8 b7 Ke7 b6 Na6 b8N Ke8 b7 Bf8 Bb6 cxb6 Kd2 Kf7 Kd3 g5 f4 d5 e4 d4 c4 Bg7 e6+ Kf6 e5+ Ke7 f6+ Ke8 f7+ Ke7 f8R Qd6 f5 Qc5 Nc3 Qa5 c5 Nc7 c6 a6 Na4 Nb5 c7 Nf6 Nb2 Ra7 Ra4 Qe1 Qd2 Bd7 Kc4 d3 Qa5 d2 Bd3 Nd4 Qb5 Nb3 Qb4+ Nc5 Be4 Qf2 Bc2 d1Q Bb1 Qd6 Ne2 Ng4 Rf6 Nh6 Bc2 Nf7 c8N+ Kf8 e7+ Kg8 e8N Nd8 e6 Qe5 e7 Qf1 Rg6 Kf7 f6 Ke6 h3 Qef5 f7+ Ke5 f8Q Q1f3 Nd3+ Ke4 Ned6+ Ke3 e8R+ Qe5 Qb3 Kd2 Nb2 Qe7 Rf1 Qff6 Qf3 Qee5 Rh6 Bg4 Bg6 Bf5 Qe7 Kc2 Rb4 Qe3 Nf7 a5 Nc6 a4 Qd6 a3 Rf2 a2 Rh4 Qee5 b8Q Rb7 Qa7 a1B Na4 Qee7 Qa6 Be5 Nb2 Qd7 Qe7 Bb8 Qaa3 Rc7 Ra4 Ba7 Qf8 Qdd6 Re3 Ne4 Qe7 Qd7 Qeb4 Qde6+
3N1B1R/pNK3R1/qbNPRRq1/p3Q3/b3N3/2N3N1/1kqpN3/3n1n2 w - - 0 1 legal: proof: e4 h5 g4 d5 gxh5 f5 exf5 Na6 c4 Be6 d3 c5 d4 Rb8 dxc5 d4 Bh6 Rc8 Be3 Rc6 Bc1 Rd6 a4 Rd5 cxd5 Nb4 Ba6 Na2 b3 Kd7 b4 Ke8 b5 bxa6 a5 g5 Qf3 Rh6 Qd3 Bd7 Qd1 Rb6 axb6 Be6 Ke2 Kd7 Kd3 a5 Kc4 g4 f4 g3 h4 d3 c6+ Kd6 h6 g2 h5 d2 b7 Nf6 b8N Qd7 c7 Bg8 c8N+ Kc7 Kc5 e5+ Ne7 e4 b6+ Kb7 h7 e3 h8N e2 h6 e1Q h7 Ng4 f6 Qee6 f5 Ne3 f7 Qa4 f6 Nb4 Nd7 Ka6 b7 Ng4 b8N+ Kb7 Qe2 Nh2 Ba3 Nf1 Rh6 Bg7 f8N Ne3 f7 Qh3 Kd6 Nf1 Nf5 Qh1 Nf6 Kb6 Nf8d7+ Kb7 f8R Na2 Nf7 Ne3 h8R Nc3 Nc5+ Kb6 Nb7 Qc2 Nfd8 Qh3 R6h7 Nf1 Nbc6 Qhd3 Bb4 Kb5 Kc7 Bh6 Rg7 Kc4 Be7 Kb3 d6 Kb2 Qe4 Nd1 Nc3 Nf2 Re1 Bb3 Qd4 Bf4 Re6 Be3 Qe5 Ba4 Nge2 g1Q Nfe4 Qg6 Rff6 Nd1 Bf8 Qa6 Nfg3 Bb6+
NB3qnb/3N2r1/b3n1N1/1r3BbN/kN3N1N/2PB1bB1/n3b3/K3R1Q1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Nc6 dxc5 Nf6 a4 Nb8 Ra3 Ra6 Rb3 Ra7 axb5 Ra6 b6 Ra8 b5 Ng8 Rb4 axb4 Kd2 e5 f4 d5 h4 Kd7 c3 g5 Kc2 e4 Kb2 d4 c6+ Kd6 f6 Kc5 f5 b3 b7 e3 f7 g4 f6 e2 h6 e1N c7 g3 b6 g2 h5 d3 h7 Kb5 h6 Ba3+ Ka1 Bg4 c8B Nd7 b8N Ne7 f8N Nd5 b7 Qb6 f7 Ka4 Nd2 Nf3 Ng6 N7f6 f8N Qd6 Bf5 Ra7 Ne2 g1B Nc6 Ng5 b8B Ng8 Nc4 d2 Nh4 Bd4 Ng3 Be2 Nh5 Rg7 Nb4 Ne6 Nd7 Qf8 Qe1 d1B Bcf4 Bf3 B1d3 Bc1 Qg1 Bde2 Bg3 Bg5 Ncb6+ Ka5 Na8 b2+ Ka2 b1B+ Ka1 Bc2 Qc1 Ka4 Re1 Bb3 Qe3 Bc4 Qf2 Ngf6 Qg1 Rhg8 h8N Ba6 h7 Be5 Nc6 Nb4 N8g6 Na2 h8N Bd4 Ngf4 Be5 N8g6 Rh8 Na5 Ng8 Nc6 Rhh7 Ndf6 Rb7 Nb4 Rb5 Nd7 Bh8 Nhg2 Rf7 N2h4 Rg7
2qb1R2/NqN4N/3N1nrP/1n1Q3r/1K5R/3qNRnp/5B2/kNR3nN w - - 0 1 illegal: No proof kernel
qrn1b1Bn/6N1/2b4N/1Pk1B3/3NRNrQ/2p2pn1/1B1NN2N/1B3b1K w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 h4 Nf6 b4 Be6 g4 Bf5 Ra3 Bh6 Rf3 Qe7 Rf4 gxf4 g5 Qd8 g6 Bg5 hxg5 Ng8 Rh3 Bd7 Rh1 Bc8 Kf2 Kd7 Kg2 f5 d4 a5 e4 c5 g7 h5 d6 a4 b6 Kc6 e6 c4 d5+ Kb5 e5 h4 d7 a3 d6 a2 g6 a1N b7 Ra4 e7 Qc7 e8N Rh5 d8N Qd7 e6 Nf6 g8N Ne4 g7 Nc6 b8B Nb3 e7 Nbd2 Bd3 Ng3 Ne2 Qb7 d7 Rh8 Nh6 Qa8 g8B Na7+ Nc6 Nde4 d8N Ng5 Be5 Nf7 Bcb2 Bd7 Nd2 Nc8 Bb1 c3 Nf6 Be8 Ne6 h3+ Kg1 f3 Qe1 f4 Nfg4 Kb6 b5 f2+ Kh2 f1B Ncd4 Rc4 Kg1 Ra4 Nh2 Rb4 Nf8 Kc5 Ng6 Nf5 Qh4 Ng3 Bh7 Rf8 Bg8 Nh8 N4f3 Bd7 e8N Re4 Ng7 Be8 N2g4 Rc4 Nfd4 Ra4 Rh2 Rc4 Rf2 Rb4 Rf3 Rc4 Re3 h2+ Kf2 h1B Kg1 Rb4 Nh2 Bhc6 Re4 f3 Ngf4 Ra4 Bga2 Ra6 Bb3 Rb6 Bc4 Rb8 Bg8 Rf5 Nf7 Rg5 Nh6 Nh5+ Kh1 Rg6 Be6 Rg4 Bg8 Ng3+
N3Q2B/2p1R3/1RbP2RN/b2R1p1R/2rq4/2RnN2K/R1np1p2/2k2bN1 w - - 0 1 illegal: No proof kernel
1nrR3N/1rkBN3/3pQ1b1/b2P4/3qNqN1/1p2p1Np/K6R/1NNnR2R w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 Na6 b4 Bg7 Ba3 Bh6 axb5 Nb8 b6 Bg7 b5 Bf8 Bb4 cxb4 f4 a5 d4 e5 Kd2 h5 Kc1 d6 Kb2 Kd7 c4 e4 g4 e3 d5 a4 c5 h4 f6 h3 c6+ Ke8 c7 Kd7 g6 a3+ Ka2 Bb7 c8N Ra6 g5 Nh6 f5 Bc6 b7 Qe8 f7 Qe6 g7 Qe7 g8N Qd8 b6 Qe7 f6 Ng4 g6 Nf2 g7 Qe6 Nh6 Qe5 g8N Ra8 Nge7 Rh7 Qg4+ Qf5 Bb5 Ra7 Ne2 Bg7 f8N+ Kd8 f7 Qe4 Nef5 Qf4 Nfg3 Qd4 Qe6 Ng4 Ne7 Qe5 Nfg6 Be8 f8R Ra8 Bd7 Qf4 Nc1 Nf2 Nh8 Bd4 Ng4 Nd1 Rf5 Bg6 Rh2 Qh6 Rf1 Qf4 Rfh1 Bc5 Kb3 a2 Re1 Na6 b8N Rf7 b7 Bb6 Reh1 Ba5 Re1 Nc7 Na6 Rc8 Nc5 Na6 b8R Kc7 Ra8 Nb8 Nce4 Rh7 Nbd2 Rf7 Rb1 a1Q Reh1 Qc3+ Ka2 Qce5 Ra1 Rh7 Nb1 Qd4 Bb5 Kd8 Ng8 Rc3 Nd3 Nb2 Na3 Rb7 Rae1 Nd1 Nc1 Rcc7 Nb1 Rc5 Ra7 Rg7 Rd7+ Kc8 Rd8+ Kb7 Nd3 Rc8 Nc1 Kb6 Be8 Rb7 Ne7 Kc7 Bd7 b3+
1Nb1R1R1/k1r1pK1B/B1rn4/3bB1B1/1pN4R/N3R2P/2bb1n2/6RB w - - 0 1 illegal: No possible last move
R1r3BB/K1R5/Nr1bbnN1/k2n3R/nR2N2b/2BN4/R4NP1/q1b1b3 w - - 0 1 legal: proof: c4 b5 h4 h5 e4 g5 hxg5 d5 cxd5 f5 exf5 b4 f3 h4 Ne2 h3 a3 h2 axb4 Bh6 Qb3 Bg7 Qe3 Bf8 Qg1 hxg1B b5 Ba6 Ra3 Bb7 Ra1 Bc8 d4 Kd7 Kd2 a5 Kd3 e5 Kc4 c5 b4 Kc7 d6+ Kb6 f6 a4 f4 e4 d7 a3 d5 e3 f5 a2 g6 Bb7 g7 Rh5 f7 Qe8 d8R Nf6 g8N Rg5 d6 Rh5 d7 Rh6 Nf4 e2 Bd2 e1N Rc8 Bf2 d8R Ba6 Rh5 Bg3 Nc3 Qe7 Ne4 Qb7 Nf2 Ne4 f6 Bd6 f8N Qc7 f7 Bh4 Nf6 Qc6 Bc3 Ra7 Rc7 Rg6 N4d3 Nd7 Ra8 Nc2 Be2 Rg8 Ng6 Rc8 f8B Rb7 Bg7 Rbb8 Bh8 Ne3+ Kb3 c4+ Ka4 Rb7 Bg4 Qc5 Be6 Qe5 Bf7 Nd5 Bg8 Nd2 N6e4 Nb3 Rd1 a1B Rd2 N7f6 Ra2 Rbb8 Rc6+ Kb7 b6 Nc5+ Ka5 Na4 b5 Bb2 Ng3 Qe1 Nge4 Qa1 Rc5 Bc1 Rc6 Bd2 Rc5 Be1 Rc6 Rc7 Rc5 Kc8 b7+ Kd8 b6 Rcc8 Rc7 Bb5 Rf7 Bd7 Ka6 Bg4 Ka7 Be6 Be5 c3 Rc7 c2 Bc3 c1B Rf7 Rc4 Rc7 Rc8 b8N Rb4 b7 Rb2 Na6 Rb6 Rc4 Kd7 b8R Kd8 Rb4 Kd7 Rb7+ Kc6 Rc4+ Kb5 Rb4+ Ka5 Rf7 Bdf4 Rc7 Bd6
1NkBb2r/pRN3q1/6N1/r4R1r/3nK2P/2R5/1RnrQRr1/1Nq2NN1 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 h5 e4 f5 exf5 b4 g4 b3 g5 e6 Bh3 Bb7 Bg4 hxg4 axb3 Bd6 b4 Be7 b5 Bf6 gxf6 Bc8 Ke2 Kd7 Kd3 c5 h4 g5 b4 g3 d6 g2 b6 e5 b7 c4+ Ke4 g4 d4 c3 f7 c2 f8N+ Ke8 d5 g3 f6 Bd7 f5 Nh6 b5 Nc6 b8R Rh7 b6 Rh8 b7 Bc8 d7+ Kf7 d6 Na5 Rh2 Qc7 d8N+ Ke8 Ra3 Nc6 Nde6 Ng4 Bg5 c1Q Qe2 Qg7 Ng6 Kd7 f7 Nd4 f8R Rh5 f6 Ne3 Nef4 Nec2 Rf7+ Kd8 d7 Kc7 d8N+ Bd7 Rf8 Be8 Nd5+ Kd7 Ne3 Kc7 Nh3 g1R f7 Rd1 Ng1 g2 Nf1 Rd2 Ne6+ Kd7 Rc8 Rb8 Rcc3 Ra8 Nc7 Rc8 Nf3 g1R Bd8 Rg2 Ng1 Ra8 b8N+ Kc8 Nc6 Rb8 Rab3 Rb5 Nb8 Ra5 Rg8 Rh8 f8R Rh5 Rb5 Rh8 Rf2 Rh5 Kd5 e4+ Rf5 e3 Ke4 Rh8 Rgf8 Rh5 Rb7 Rh8 Qd3 e2 R8f6 e1R+ Qe2 Rg5 Rfb6 Rgh5 Rb2 Red1 Qd3 Rg2 Qe2 Rg3 Rg2 Rd2 Rgf2 Rg2
8/1RBqPq2/R2NRr2/1B1b3R/1bR1n2r/1N3pN1/B1q2k2/K1b1NN1q w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Nc6 Qc2 Nce7 Qf5 Qd7 Qg5 Nf5 gxf5 Qd8 Qg4 hxg4 Kd1 Kd7 Kc2 g5 b4 c5 Kb2 a5 h4 g3 d4 a4 e4 f3 h5 c4 d6 g2 d5 g4 f6 g3 f7 Ra5 h6 Qh4 b6 Bb7 h7 Nf6 e6+ Kc8 e7 Kd7 e8B+ Kd8 e5 Ra6 e6 Kc8 b5 Qf4 e7 Bc6 b7+ Kb8 d7 Ka7 b8R Ba8 d8R Rg8 h8N Qh6 d6 Qg7 d7 Bc6 Rbc8 Kb6 Rh5 Ra8 Ng6 Bb7 Nf4 Ra6 Nd3 Rh8 Bf4 Bd5 Ne2 g1Q Nd2 g2 Ng3 Qh1 Ne1 g1B Bc7+ Kc5 b6 Kd4 b7 Ke3 b8R Kf2 Rb7 c3+ Kb1 a3 Bb5 Rd6 Ndf1 Ne4 Bc4 Qg6 Ba2 Bh6 f8N Qf7 Ne6 Bc1 Nd4 Rf6 Nb3 Qh3 Ba5 Qhe6 Rc4 Qg4 Bc7 Rh7 Rf5 Rh4 Rh5 Qh3 Rdb8 Bh2 d8N Qd7 Ra8 Bg1 Ra6 Bh2 Ne2 Bd6 Neg3 Bb4 Re6 Qd6 Bb5 Qc6 Nd4 Qd7 Bb3 c2+ Ka2 Qg8 Nf7 Qf8 Nd6 Qg7 Rb1 Qf7 Ka1 a2 Ra7 Bca3 Ra6 c1Q Bd1 Qc2 Nb3 Bc1 Rb2 Qe2 Bc2 Qd1 Bb1+ Qc2 Ba4 Rh3 Nh2 Rg6 Nc5 Rg7 Ng2 Bbd2 Rb7 Rg6 Nb3 Ba3 Bc6 Bab4 Bb5 Qd3 Kb2 Rf6 Ne3 Rh4 Ng2 Qf1 Ne1 Qh1 Nhf1 a1Q+ Kc2 Qe5 Ba2 Qc3+ Kb1 Qc2+ Ka1 Bc1
2R1nRNB/kB2Nr2/6pK/bBr3BP/1nB4N/1p2q2R/r6r/1NNb4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 Bh6 g4 Kd7 g6 Nc6 g7 Qf8 g5 Ke8 g6 Nf6 g8B Nb8 Qg4 Bg7 Be6 Qg8 Qg2 Bf8 g7 Qf7 Qg6 hxg6 Bb5+ Kd8 Ba6 Qe8 Bg8 Qd7 Bd3 Ke8 Bf1 Qd8 Kf2 Kd7 Kf3 e5 h4 b5 d4 c5 a4 Kc7 d6+ Kb7 d7 b4 a6+ Kb6 h5 c4 a5+ Ka7 d5 b3 d6 e4+ Kf4 e3 Kg5 c3 Bgc4 c2 g8N e2 Nf3 e1R Nh4 Qb6 d8B Re5 d7 Rd5 Rh3 Ne8 Bf6 Ba3 d8N Bf8 Nf7 Nd7 Ne5 Rd2 Nd3 Rh7 Bh8 Qf2 f6 Nb6 f7 Bb4 f8R Rb7 Kh6 Re2 Bg5 Rbe7 Nc1 Kb8 a7+ Kb7 Ra2 Nd5 a6+ Kb6 Ra5 Qe3 Rc5 Bg4 Rc8 Ba5 Bb5 Rh2 Bfc4 Rb8 a8N+ Ka7 Nb6 Nb4 Nd5 Rf7 Nde7 Bd1 Bc6 Rb5 Bd7 Rc5 Bdb5 Kb6 a7 Kb7 a8B+ Ka7 Nd3 c1R Bb7 Rcc2 Nc1 Ra2
2K1rk1n/1p1B1B1B/4b2N/4b3/B2qB1Q1/1PBb3N/rr1qNNn1/R4Nn1 w - - 0 1 legal: proof: f4 g5 c4 a5 h4 d5 cxd5 e5 fxe5 a4 hxg5 a3 b3 Bg4 Nc3 Bd6 Rb1 Bf8 Rb2 axb2 a4 Bc8 Kf2 b1Q Ke3 c5 Kf4 h5 e4 f5 d4 c4 g4 h4 g6 h3 d6 h2 g7 Rh7 g5 Qd3 d5 Qf6 d7+ Ke7 d8N Qh3 d6+ Ke8 g6 Bd7 a5 Rh5 a6 Qd3 a7 Be6 d7+ Ke7 Nce2 c3 Bd2 c2 Nf7 c1R d8N Bc4 e6 Rc2 e5 Rh6 Nd6 Qc3 Nh3 Rh7 Bg2 Rb2 Be4 Nh6 g8B Qc1 g7 Qc2 Bc3 Qg6 Bf7 Nd7 g8B Qg7 Qd4 Nc5 Ra1 h1N Qg1 Qh8 Qg4 Nd3+ Kg5 f4 Kg6 Rb8 a8N f3 Nb6 Bg7 Nd5+ Kf8 Ne3 f2 Nf1 Ne1 Kg5 Bf6+ Kf4 Rg7 Bgh7 Bd5 Bd3 Qd1 Ne4 Ra8 Bc2 Raa2 Bb1 Ng8 Kf5 Ng2 Bd3 Bh4 Bc2 Bg3 Bd3 Ne7+ Kf6 Ng6 Kf5 Rg8 e7+ Kg7 e8B Qd2 e6+ Be5 Ba4 Re8 e7 Bc4 Ne3 f1B Nef2 Bd5 Be4 Be6+ Kg5 Ng3 Bd7 Rg8 e8B Kf8 Ba4 Rg7 Bed7 Bb8 Kf6 Bc7 Nef4 Bd3 Nf1 Bb8 Ne2 Bc7 Bfe8 Bb8 Nf7 Bd6 Nef4 Ne2 Nh6 Ng1 Bf7 Be5+ Kg5 Bd5 Kf5 B5c4 Ne2 Bd5 Bfe6 Re7 Bf7 Bf4 Bab5 Qd4 Ba4 Nh8 Qh5 Qa7 Qg4 Be6+ Kf6 Bg5+ Ke5 Bf6+ Kd6 Qd4+ Kc7 Be5+ Kc8 Re8+
RrN2Rnq/br1b2bb/3K4/1RN2pn1/N2R4/3QB2k/2RNRPN1/3rr3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Nc3 Kf5 Nb1 Ke6 Kd2 Kf5 Ke3 Kg4 Kd4 f5 Ke5 g5 b4 a5 h4 c5 h6 c4 h5 a4 h7 c3 b6 a3 b5 a2 b7 d4 b6 c2 h6 d3 Nc3 d2 Na4 Ne7 Nf3 Qc7 d8R Ra6 e4 Bd7 Re1 Kh3 Rc8 g4 Re2 Rg8 h8N g3 h7 g2 Ng6 g1R h8R+ Kg4 Nf4 Be8 Ng2 Qd8 d7 Ra7 Kd6 Nbc6 b8R Re1 b7 Nd4 e5 Bg7 e6 Bg6 Rb1 a1B Rb5 Bb2 Ra8 Bh7 b8N Rb7 Na6 Kh3 N6c5 Re8 Rc6 Ng8 e7 Ne6 Rcc8 Rf8 e8N Ng5 Rc7 Qc8 d8R Bbd4 Rdd7 Rf7 Rd8 Rb8 Rc6 Rfb7 Rc7 Ne7 Rf8 Ng8 Rc6 Rg1 Qf1 d1B Be3 c1R Nd2 Bb3 Qd1 Be6 Qc2 Rge1 Qd3 Ra1 Nd7 Nf3 Rc2 Qc3 Nef6 Ng5 Ndb6 Bc8 Kd5 Rad1 Nfe4 Bh6 Rd6 Bd7 Nc8 Ba7 Nec5 Be8 Rd8 Qh8 Rd7 Bg7 Kc6 Bh5 Rd4 Be8+ Kd6 Bd7
bBqBB1Br/N2p3R/k2KNN1r/3P2N1/4p3/1nn3QB/2nbb1N1/r6N w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c5 b4 Qb6 Ra4 Qb7 b6 Qc7 b5 Qd8 Rb4 cxb4 Ke2 h5 Ke3 a5 Kf4 b3 Ke5 b2 g4 h4 d4 e6 f4 h3 c4 h2 f6 a4 c5 a3 b7 a2 b6 a1R d5 R8a7 g6 Bg7 f5 R1a6 c6 Nh6 g5 Ng4+ Kd6 e5 c7 e4 f7+ Kf8 Nf3 Ne5 Nh4 Ra4 Nc3 b1N Bh3 Rh7 Ng2 Nd2 Qb3 Qe8 Nd1 Rh4 Qg3 Nef3 Nf2 Nc6 b8N Na5 b7 Nc6 Na6 Nfe5 b8B Nb4 Nc5 Bb7 c8N Ra8 Na7 Na2 Bb2 Ng4 Bf6 Bh6 Bd8 Kg7 f8N Nc3 Nh7 Ra1 Nf6 Kf8 g7+ Kf7 Nb3 Ne3 Nc5 Nc2 g8B+ Kf8 g6 Nb3 Bh7 Bd2 g7+ Kf7 Ne6 Rh6 Nef4 Bc6 g8B+ Kf8 Bg6 Bb7 Bb6 Qc8 Bd8 Bc6 Be8 Bb7 Nh4 Bc6 Nfg2 Bb7 Rf1 h1B Nf3 Bc6 Ng5 Bb7 Nh4 Bf3 Nh1 Be2 Ng2 Bc6 Bbc7 Rb8 Rf4 Ba8 Rh4 Rh8 Rh7 Rb6+ Ke5 Rd6 Bb8 Rda6 Nh5 Rh6 f6 Na5 f7 Nb3 Bb6 Ke7 Ba5 Rb6 f8N+ Kd8 Nf6 Qc5 Nc6+ Kc8 Nfe6 Kb7 Na7 Ra6 Bd8 Qc8 Qh2 R6a3 Qg3 Ka6 Nf2 Rh1 Kd6 Rh2 Nh1 Ra1 Bg4 Rh5 Bh3 Rh6
2rqB1q1/R5BB/3nN1B1/n1B5/1RQ5/1brRR1Rp/1p1bK1BP/k2rb3 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 c6 b4 Bc5 b6 Be7 Nc3 Bf8 b5 c5 Nd5 Na6 Nb4 cxb4 Ra2 Nb8 Ra5 Ne7 Ra1 Ng8 c4 Ke7 g4 Ke6 e4 a5 c5 f5 g6 d5 c6 h5 g7 f4 b7 h4 g5 f3 c7 a4 g6 h3 b6 d4 Qb3+ Qd5 Be3 a3 Bg2 d3 Qc4 b3 Ne2 a2 Bc5 Nc6 b8R Rh6 b7 Nf6 g8R Na5 g7 d2+ Kd1 f2 Re1 Bd7 c8R f1Q Rd8 Ba4 Rd7 Qf4 Rdd8 Qh4 Nf4+ Kf7 Ke2 d1R Rd6 Ne8 e6+ Kf6 e7+ Ke5 Ne6 Rg6 Rdd8 Nd6 e8B Rg3 Bg6 Rc3 Rd7 Be7 Rdd8 Bg5 Rd7 Rdd3 Rad1 Rd4 Rd3 a1B Re7 Bb2 Ra1 Bbc1 Ra3 b2 Rge8 Qg3 g8B Bh4 B8h7 Bb3 Rf7 Qg5 Rff3 Bf2 Rg3 Be1 Ra4 Qd8 Rb4 Ra6 Ra8 Bcd2 b8B Rc6 Ra7 Rc8 Bc7 Qa8 B7b6 Nf7 Bf8 Nd6 Bc5 Qb8 Ng5+ Kf4 e5 Qa8 e6 Qd5 e7 Qg8 Rdf3+ Ke5 Ne6 Rdd3 Qg4 Kd5 Bg7 Rd4 Ref8 Rdd3 e8B Rd4 R8f4 Rdd3 Rbe4 Rd4 Rd3 Kc4 Bb6 Kb4 Ree3 Ka3 Bc5+ Ka2 Qh4 Rd5 Rb4 Ka1 Qc4 Rd4 Ref3 Bg5 Rde3 Rd1 Rd3 Bc1 Rfe3 Bcd2
1n5R/3r1B1B/2P1bQ1B/1N6/K1rBR1B1/2Bn4/k2b1RR1/qnQ1nrb1 w - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 h5 g5 g6 Nd2 Qb6 Ndf3 Qd8 Ne5 Bh6 fxg6 Bf8 Ng4 hxg4 f5 Qb6 Ke2 Qc7 Ke1 Qd8 Kd2 e5 Kc3 Ke7 Kb3 a5 c4 d5 h4 e4 h5 g3 f6+ Ke6 b6 d4 b7 g2 g7 e3 c6 d3 h6 d2 c7 e2 f7 e1R g6 Re4 c5 Kd5 h7 Re2 c6 Kd4 Ra2 Kd5 Rh4 Qe7 Re4 Qd8 Nf3 g1B Nd4 Be7 f8Q Bg5 Ka4 Kc4 b4 Be6 c8B Ne7 g8B Nd5 g7 Ra7 b5 Qf6 b6 Nf4 Bf7 Nd3 g8R Rf2 Nb5+ Qd4 Be2 Rf1 Bg4 Bf4 Qe1 d1N Rf2 Bd2 Rg6 Rg8 h8R Rg7 Qd8 Rh7 Bf5 Rh4 Rgg2 Rg4 Qf6 Nc3+ Ka3 a4 Bh7 Na6 b8B Rd7 Ba7 Nb8 b7 Nb1+ Ka2 a3 Bb6 Kd5 Kb3 Qa1 Bd4 a2 Ka4 Kc4 Bcb2 Rf4 Bbc3 Rh4 Ka5 Kb3 Qc1 Na6 b8B Rg4 Bbe5 Nb8 Be3 Rh4 Bh6 Rg4 Re1 Rc4 Re3 Qb2 Re1 a1N Bd4 Nc2 Re5 Ka2 Re4 Ndb4 Ka4 Ne1 Bh5 Qa1 Bg4 Re7 Bd7 Rf7 Be8 Rd7 Bf7 Nbd3+
nr2Q1nb/B1N2q2/1B6/1bNN4/2k1NrBq/3RQBNP/2q1qN2/3q2K1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 fxg5 h6 g6 h5 b4 Bb7 g4 Bc6 g5 Bd7 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 d4 Kd6 f6 e5 f7 c5 h3 a5 b6 e4 g7 a4 b5 c4 b7 a3 g6 c3 b6 c2 Qd3 a2 Be2 a1Q Nc3 Rh5 Nd1 Qf6+ Bf3 Rh7 Be3 c1Q Ne2 g3+ Kg1 g2 Ng3 Nd7 b8N Ra2 b7 Rc2 Na6 Ne5 b8Q+ Rc7 Nb4 Bf5 Qe8 Be7 f8N Qa4 Nd7 Qac6 Nc5 Qd2 Nf2 Nd7 Qc3 Nb6 Rh2 Nh6 g8N Na8 g7 Qf7 Nf6 Bd7 g8B Rh8 Bh7 Rc8 Bf5 Rf8 B5g4 Rb8 Qa3 Ng8 Qc1 Kc7 d6+ Kb6 d5 Kb5 Bd4 e3 N6e4 e2 Qe1 Bc8 d7 Kc4 d8N Bd7 d6 Bf6 Nde6 Bh8 Nd5 Qa6 Be3 Bb5 d7 Qa4 d8B Qac2 Qc1 e1Q+ Nf1 Qa7 Nec7 Qee2 Nfg3 Rf4 Qa3 Qaa4 Bd4 Qa7 Qe3 Qaa2 N5a6 Qaa4 Ba7 Qab4 Rh1 Qf8 Nac5 Qf7 Rh2 Nf6 Nfd3 Qdd1+ Nf1 Qh7 N7a6 Qf7 Bdb6 Ng8 Nac7 Qde1 Nec3 Qe2d2 N3e4 Qh4 Nfg3 Qb4 Ndc3 Qcb3 N3d5 Q3c3 Kf2 g1Q+ Ke2 Qgb1 Kf2 Qa2+ Kg1 Qbb2 Rd2 Qca5 Rd1 Qe2 Ndf2 Qac2 Rd3 Qac3 Nef6 Q3d2 N6e4 Qdd1+
2R1Q3/1P1N1Nnr/NrnbrBKr/r7/4k2N/1Q3q1Q/1Q3QQR/5n1n w - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 f4 h5 g5 Kd7 g6 Nf6 Bh3 Ng8 Bg4 hxg4 f6 Kd6 f5 Be6 Ra2 Kd7 Ra1 Bf7 gxf7 Rh3 Qf3 Rh5 Qd1 Rh8 Ke2 Kd6 Kd3 Ke5 h4 a5 b4 c5 h5 g5 b6 e6 d6 g3 d7 a4 b7 a3 h6 a2 b5 g2 h7 g4 b6 g3 Na3 Nc6 b8Q+ Kd5 Nf3 g1N Rh2 e5 Nh4 g2 Bb2 Ra4 Nc2 Rf4 Rc1 Bd6 f8Q a1R f7 Nf6 Qg7 Ra5 f8Q Nh5 f6 Nf3 f7 g1R Qg2 Qf6 d8Q Rh1 Qde8 Ng7 b7 Rb4 Qbc8 Rb6 Qch3 c4+ Ke3 e4 d4 c3 Nb4+ Kc4 d5 c2 Na6 Nd2 Qdf3 Qf5 Bf6 Qg4 Qg8 Qf5 f8N Nf1+ Kf2 Qg4 Nd7 e3+ Ke2 Qe4 Qff2 Qd3+ Kf3 e2+ Kg4 e1R Kg5 Re6 Qgf7 Qf3 Kg6 Kd3 Qfg8 Ke4 Qgf7 Rf8 Qg8 Rf7 h8Q Bf8 d6 Be7 Rd1 c1N Rd3 Ne2 Rc3 Neg3 Rc2 Nb8 Rc6 Bf8 Rc8 Rfe7 Qgf7 Nc6 Qfg8 Ree5 Qb3 R7e6 Qbb2 Rh5 Qg8 Ree5 Qgb3 Re6 Ne5 Be7 d7 Bd6 d8N Rg1 Ndf7 Nh1 Qg5 Rg2 Nd7 Rg4 Nf5 Rgh4 Qgg3 Rh7 Qgg2 R4h5 Nh4 R5h6+
r4n1k/Q1R1b1n1/R2K3B/bNQB1Rb1/n3Q1Qr/p5r1/2P1R3/Q2Q1q2 w - - 0 1 legal: proof: d4 c5 dxc5 b5 f4 f5 a4 h6 axb5 Nf6 g4 Rg8 gxf5 Rh8 e4 Rh7 e5 Nc6 Nc3 Rh8 Ne4 Ng8 f6 Nb8 Ng5 hxg5 f5 Bb7 Ke2 Bd5 Ke1 Bf7 e6 g4 Bg5 Qa5+ Bd2 Kd8 exf7 Qc7 Be3 Qc8 Bh6 Kc7 Bc1 Qd8 Ke2 g5 Kd3 e5 Kc4 a5 Kd5 e4 b4 d6 h4 Kd7 c6+ Kc8 h5 e3 b6 g3 c7 Kd7 c8R e2 b7 e1B h6 g2 h7 a4 b5 g4 b6 g3 Ne2 g1B Nd4 g2 Bc4 Nh6 Rh2 Bh4 Nb5 Be7 f8Q Bg5 Qg8 Qf8 Rc7+ Ke8 Ba2 Nd7 b8Q+ Bd8 b7 Bb6 Ke6 g1R Re2 d5 Qa7 d4 b8Q d3 Bd5 d2 Qbb7 Be7 Ra3 Ba5 f7+ Kd8 f6 Rg3 Qg6 Nf5 Qg7 Bh6 Qg4 Bg5 Rac3 a3 R3c6 Rg1 Ra6 Rg3 Qf1 d1N Bf4 Qe8 f8R Nb2 Qd1 Na4 Rf7 Qf8 Bd2 Rg8 h8Q Ke8 Qhh1 Rh8 Qc6 Bh4 Bh6 Bg5 Qc3 Rh7 Qhe4 Rh8 Qca1 Rh7 Bg7 Rh4 Bh6 Qg7 Rc3 Nf8+ Ke5 Qg8 Rf3 Ng7 Rf5 Beb4 Rc7 Be7 Bb7 Kf7 Bd5+ Kg6 f7+ Kh7 Re1 Nfe6 f8Q Qf7 Qc8 Nf8 Re2 Bef6+ Kd6 Kh8 Qd7 Bd8 Qc6 Bdf6 Qcc5 Bd8 Re5 Qf1 Rf5 Bde7+
2K3k1/q3B3/rQQ3qQ/2b1b2Q/B2R2p1/1nb2r1B/NnB1PB1N/r6B w - - 0 1 legal: proof: b4 b5 f4 c5 d4 f5 dxc5 e5 fxe5 h5 g4 f4 a4 Bb7 axb5 Bc6 Ra6 Bb7 Rg6 Be4 Rg5 Bf5 gxf5 Rh7 Rg2 Rh8 Rg4 hxg4 Kd2 Kf7 Kd3 d5 Kd4 g5 h4 a5 c4 a4 b6 a3 h5 f3 b5 f2 e6+ Kg7 Ke5 a2 e7 a1B+ Ke6 g3 e8B g2 b7 d4 h6+ Kh7 f6 g4 b6 d3 f7 d2 c6 Qd3 c7 Ra4 c8B Bb2 c5 Qg3 c6 Qh4 c7 Be7 f8Q Bb4 Nc3 Na6 Kd7 B2a3 b8Q Qf6 b7 Qg5 Na2 Bb2 Qc2+ Qg6 Qc6 Ra5 Nf3 g1B Nh2 Rf5 Bh3 Bd4 Ba3 Bbc3 Be7 f1R Qa7 d1Q b8B Bge3 Qab6 Qa4 Ba7 Ra1 Bb7 Rf3 c8B Nb4 Rd1 Be5 Rd4 Nf6+ Kd8 Ne4 Bf5 Qa3 Kc8 Nd2 Bc2 Nb3 Qf4 Kg8 h7+ Kg7 Qf5 Nd3 Qh5 Nb2 Ba8 Rhf8 Bb7 R8f6 Bd7 Qc5 h8Q+ Kf7 Q8h6 Kg8 Qcc7 Rff1 Bh1 R1f3 Ba4 Rd6 Qbc6 Qa5 Bc5 Qa7 Q7b6 Bf2 Bh4 Re6 Bce7 Be3 Bf2 Rd6 Rb4 Bc5 Rd4 Qf5+ Qd7 Rd1 Qc7 Ra6 Qcb6 Qg6 Qdc6 Ra1
3q1r1r/2N2k2/BR1nrB1B/B1q4P/6p1/QN1B1N1q/N3n3/q2BbK1Q w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 f5 fxe5 h5 a4 f4 axb5 Nh6 g4 Bf5 gxf5 Ng8 Ra3 Qc8 Rg3 Qd8 Rg4 hxg4 e4 c5 h4 a5 d4 g5 h5 a4 b6 f3 b7 g3 e6 g2 f6 a3 d6 a2 b5 a1R e7 g4 d7+ Kf7 e8B+ Ke6 e5 c4 f7 c3 b6 c2 d5+ Ke7 d6+ Ke6 Nd2 Qf6 d8B R8a2 d7 Nh6 Ba6 Be7 f8Q Nf7 Nb3 Ra4 Bh6 Nd6 Bg6 c1Q Bgd3 Nc6 b8N Nc4 b7 Nb4 Ba5 Rh7 d8B Nd5 Nc6 Nc3 b8N Ne2 Nb4 Rh8 Na2 Bb4+ Kf2 Bc3 Qa3 Nd6 Qf1 Qf8 Bf6 Kf7 Qe1 Rf4 e6+ Ke8 e7 Kf7 Qf1 Qd8 Rh3 Re4 Rg3 Re6 e8B+ Kg8 Ba4 Kf7 Nd2 Rb1 Bd1 Rb4 Nb3 Rf4 Bc8 Qb1 Na6 Qa1 Nc7 Rf5 Bca6 Bd2 Qe1 Bb4 Qc3 Rf4 Qd4 Bd2 Qe4 Be1+ Ke3 f2 Nf3 f1Q Rh3 Qh1 Rg3 Bb4 Kf2 Qh3 Bdc4 Ng1 Qe1 Qc1 Bfg7 Qb2+ Nd2 Rd4 Nh4 Qa1 Rb3 Ne2 Qh1 Ke7 Bd3 Rf4+ Nhf3 Rff8 Bf6+ Kf7 Rb2 Bc3 Rb6 Bb4 Qf1 g1Q+ Ke1 Qgd4 Qh1 Qc4 Kf2 Qc5+ Ke1 Qg3+ Kf1 Qh2 Nb3 Be1 B1c2 Qh4 Bd1 Qh3+
1r4NB/1NB1b2b/b1q2n2/qN1n1qPQ/1k2p3/2N5/1K2R1NN/1b2QBB1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 f4 f5 e4 d4 exf5 d3 f6 Be6 f5 Bd5 Ra4 Bb7 cxd3 Bg7 d4 Bc8 d5 Bf8 g4 a6 h4 Bh6 Ra3 Kf8 Rf3 Bg7 Rf4 gxf4 g5 Ke8 g6 Bf8 Bh3 a5 Bg2 Ra6 Bf1 Rc6 Qb3 Rc3 Qc2 Rg3 Qd1 Rg5 hxg5 Bb7 Be2 Ba6 Bf1 Bc8 d4 Kd7 Kd2 Kd6 Kc3 e5 b6 c5 f7 h5 f6 h4 b5 h3 g7 e4 b7 c4 b6 h2 Qe1 f3 Be3 f2 Nf3 a4 Kb2 Rh7 Nc3 Ne7 g8N Na6 b8B+ Qc7 b7 Bf5 Ba7 Rg7 b8Q Nb4 Qe8 Qc5 Rg1 h1B Rg2 Qc8 Nh2 Bh7 Bc1 Qf5 Bc5+ Kc7 d6+ Kb7 d5 Ka6 d7 Ka5 d6 Nbd5 Bd4 Kb4 d8B Rg6 d7 a3+ Ka2 Rh6 Bb2 Rh5 Ka1 a2 Bc7 Rh6 d8N Rg6 Bd3 f1B Re2 Bf3 Bg1 Bg4 Nb7 Rg7 Rg2 Bd1 Rd2 Bc2 Be2 Bg2 Bf1 Bb1 Re2 Bf3 Bc1 Bh5 Kb2 Bg4 B1f4 Bh3 Bfe5 a1Q+ Kc1 Qa5 Kb2 Nb6 Bed4 Ned5 Bde5 Bc5 f8N Nd7 f7 N7f6 Ng6 Be7 f8N Rf7 Ne6 Rf8 Qf7 Rb8 Nd4 Bg2 Nh4 Bf3 Rd2 Be2 Ndb5 Bed3 Qh5 Be2 Na4 Bed3 Ng2 c3+ Kc1 c2 Kb2 Be2 Nac3 Bc4 Re2 Bd3 Na3 Ba6 Nab5 Ng4 Bh8 Ngf6 Na3 c1Q+ Ka1 Qe3 Kb2 Qec5 Nab5 Qc6
B1b1r1RR/4PR1R/3R4/pnN2r1N/3bNRq1/1K3pN1/1Q3q1k/r2Q2n1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 g4 c5 b4 h5 gxh5 Qd6 b6 Qe6 b5 Qf6 Ba3 Qd8 Bb4 cxb4 h4 Ke7 d4 f5 Kd2 a5 Kc2 g5 e4 g4 h6 f4 e6 Kd6 e5+ Ke7 d6+ Ke8 d5 g3 h7 g2 e7 Kf7 e8N Kg6 e6 Kf5 b7 Ke5 h5 Ra6 h6 Qb6 e7 Qa7 d7 Qf2+ Kb3 Qe3+ Nc3 Qc5 d8N Qd4 d6 Qd3 d7 Qf3 b6 Qg4 Nf6 Ra8 Nh5 Na6 b8Q+ Nc7 b7 Nf6 Rh4 Ne4 Ne6 Bg7 d8R Ng5 Rd6 Nb5 Nc5 Nf3 Nge2 g1Q Neg3 Re8 h8R Qf2 h7 Ng1 Nc3e4 Rf8 Ra4 Rf5 Rg8 f3 h8R Bf6 Bc4 Bg7 Bd5 Bf6 Ng7 Kf4 R4h7 Bd4 Rf8 Na3 Rf7 Nb5 Kc4 b3 N7h5+ Ke5 Rb4 b2 Kb3 b1R+ Ka4 Rc1 Kb3 Ra7 Qa8 Ra6 b8R Ra1 Qb7 Ra8 Qb6 Bd7 Rbg8 Re8 Ba8 Bc8 Ng7 Kf4 Rc4 Qg6 N7h5+ Kg4 Ra4 Kh3 Nd2 Be3 Rf4 Bd4 Nde4 Na7 Kc4 Qg4 Qb2 Kh2 Kb3 Nb5
3Q1K1B/kBQ3B1/1NnQRbbp/2QbnR2/p3P1r1/2B1b1B1/1q5B/7r w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 f5 f4 d5 cxd5 g5 fxg5 f4 g4 Qd6 h4 Be7 g6 Kd8 g7 Ke8 g5 Bf8 Na3 Qd7 Nc2 Qg4 g6 Qg5 Nd4 e4 Ndf3 exf3 hxg5 Bf5 Rh6 Be6 Rh1 Bc8 Kf2 Kd8 b4 a5 e4 c5 d4 Kc7 b6+ Kb7 b5 a4 d6 c4 d7 c3 d8B c2 d5 Nh6 g8Q Nc6 d6 Kb8 g7 Na7 b7 Be6 g6 Be7 d7 Bd5 Qf7 Nc8 g8Q Ka7 b8B+ Kb7 g7 Nd6 b6 Ba2 Ba6+ Kc6 b7 Bg5 Qgf8 Ne8 g8Q Bd5 Ba5 Bd8 Nh3 Bg5 d8B Bc4 Bc3 Ng7 Bdf6 Kb6 B1b2 Ne6 Bg7 Nd8 Qdd6+ Nc6 Raf1 c1B Rhg1 Bf6 Rg6 Bd5 Q7e7 Bg5 Re6 Nf7 Bc7+ Ka7 Qc8 h6 Qgd8 Bf6 Qcd7 Rc8 b8B+ Ka8 Qc5 Rg8 Qdd6 Bd2 Bh8 Rg4 Qed7 Bg5 Bcg7 Bf6 Be5 Bc1 Ba5 Bd2 Q7c7 Bc1 Bac3 Be3+ Ke1 f2+ Ke2 f3+ Kd3 Bd4 Bg3 Be3 Nf4 Nfe5+ Kc2 Bc4 Kb2 Ba2 Ka3 Bd5 Rh1 f1B Rh5 f2 Rf5 Bfc4 Bh2 Ne7 Kb4 f1Q Bg3 Qe2 Bh2 Bc6 Nd5 Be8 Bg3 Bg6 Bh2 Bb3 Bg3 Qb2 Kb5 Nd3 Kb6 Ng8 Kc6 Ne7+ Kd7 Nc6 Bh2 Bh7 Ke8 Nde5 Kf8 Bg6 Qce7 Bc4 Bc7 Ba2 Nb6+ Ka7 Bb7 Bd5 Qdd7 Nd3 Bcg3 Nde5 Qc7 Rb8 Ba8+ Rb7 Qed6 Qf2 Nd7+ Ka6 Bg1 Rb1 B1h2 Qb2 Nb6 Rh1 Bb7+ Ka7
bkN1qB2/8/B3BQPR/2b2p2/NN5r/BrB3n1/3rbQ1p/1N2Kr1B w - - 0 1 illegal: No possible last move, all moves rejected
4R3/Rq4pR/r2B1Q1R/P2r2r1/3Rb1bQ/1Qp3p1/QRnN2kN/2K3n1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 g3 a3 bxa3 Qd7 a4 Qd6 a5 Qd8 f4 h5 f6 e6 f5 Ba3 Be2 Bd6 Bg4 Bf4 gxf4 hxg4 d4 Kf7 Kd2 c5 a4 b5 h4 e5 h5 c4 a6 b4 d6 b3 d5 e4 h6 b2 a7 g3 d7 Ba6 h7 Qe7 d8Q Qb7 d6 Ne7 d7 Nbc6 Rh6 Nb8 Qb3 Qb6 Nf3 Nec6 Nh2 Rg8 h8R Bc8 R8h7 Nb4 a5 Qc7 Ra2 e3+ Kd1 Qc5 Nd2 b1B Ba3 e2+ Kc1 Qd5 Rb2 Nc2 Bd6 c3 Qa2 Re8 Qb6 Rf8 d8R Nc6 Qbb3 N6d4 Re8 Bd7 Re4 Nf3 Rd4 Rad8 a8R Ng1 Ra7 Ra8 Rc7 Ra6 Ra7 Ke8 f7+ Kd8 f6 Bg4 f5 Qb7 Rh5 Kd7 R5h6 Rd8 f8Q Kc6 f7 Rd7 f6 Rd8 Rc4+ Kd5 Qh8 Rd7 f8R Rd8 Rc6+ Kd4 f7 Ke3 Rc8 Kf2 Re8 Kg2 f8Q Rd7 Qf6 Rd8 Bf8 Rd5 Rc4 Rg5 Rd4 Rd5 Ndf1 Rg5 Bd6 e1R+ Rd1 Re2 Rd4 Ree5 Nd2 Rb5 Qhf8 Rbd5 Q8e7 Na1 Qd8 Be4 Qde7 Nc2 Qd8 Rge5 Qh4 Rf5 Qdf6 Rg5
3BqnB1/pkB2QrP/8/R2N1Q2/1p1bp1Q1/1p1n4/K2Br2Q/R2rQ2Q w - - 0 1 illegal: No possible last move, all moves rejected
B1QK1Q1B/B3P1qQ/n1pkp1bq/1p1N4/p1r4B/RQ2R1b1/2B4B/3n4 w - - 0 1 illegal: No proof kernel
R1R5/8/1RN1R1p1/Q1Rn3q/qQq2b1r/1nrR1bPk/1B2b1N1/1rQ2Q1K w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 fxe5 h4 axb5 h3 g3 Bd7 Bg2 hxg2 Ra5 Be6 Ra1 Bc8 Kf2 Ke7 e4 a5 h4 f5 d4 c5 b4 c4 e6 Kf6 e5+ Kg6 h5+ Kh7 b6 g6 b5 f4 d6 Kh6 d5 Kg5 d7 a4 d6 a3 h6 c3 h7 c2 e7 a2 e8R Ra3 e6 Nh6 e7 Nc6 b7 Rc3 b8Q Rb3 b6 Qc7 d8R Nf5 d7 Nb4 b7 Bg7 Rh5+ Kf6 Nc3 f3 Nd5+ Ke6 Nh3 g1R Qf1 Qe5 Bb2 c1Q Rb1 a1Q Qc7 Ra3 b8Q Bh6 Qbb7 Qcf4 Qcc1 Qc4 Qb8 Bb7 Nhf4+ Kf7 Rg5 Nd4 Ng2 Ke6 Rc8 Rd3 d8Q Qa4 Qa5 Rc3 Red8 Nb3 Rh5 Qg5 e8R+ Kf5 Ne7+ Kg4 Rd3 Nd5 Nc6 Qh4 Ree5 Kh3 Re6 Bf4 Rf5 Ba8 Qbb4 Qh5 Rg5 Nc7 Rc5 Nd5 Qe2 Re1 Qf1 Rd1 Kg1 f2+ Kh1 Re1 Qg1 f1B Qf2 Be2+ Qf1 Rd8 h8R Bb7 Rh7 Rh8 Ra1 Ba8 Rb7 Rh7 Rb6 Bb7 Qc2 Rb1 Qcd1 Qe5 Qc1 Rh4 Ra3 Qh5 Qa7 Qab5 Nb8 Ne7 Ra1 Bbf3 Nc6 Nd5 Ra5 Qa4 Qa6 Rg4 Qab5 Qe5 Raa8 Rh4 Q5a5 Qh5
7K/2N2p1n/2nQ4/Q1r1NQ1r/p1n1q1Nb/Nb1NR3/P1Brb2R/k3NQ2 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Na6 g5 Nb8 g6 Qa5+ Bd2 Qd8 Bg5 hxg5 Kd2 Ke7 Kc3 Ke6 Kd4 d5 c4 b5 h4 a5 e4 a4 c6 b4 h5 b3 c5 g4 c7 b2 c6 g3 h6 g2 h7 Bd7 c8Q Ra7 c7 Nh6 g8Q Na6 g7 Qg5 Na3 b1B Qa8 Qd2+ Bd3 Nb4 c8Q Rb7 Rh2 Qc2 Qa5 Qb3 Qf1 Na6 Nf3 g1R Bc2 Rg2 Ne1 Be7 Qgf8 Bh4 g8N Ng4 Nh6 Nf6 Ng4 Nb8 Nf2 Rb5 Nfd3 Rd2 Qfb4 Rc5 Qbb6+ Ke7 e6 Qb4+ Ke5 Nc6+ Kf5 d4+ e5 Bg3 Kg5 Bh4+ Kh6 Qc4 Kg7 Qd5 Qca6 Qe4 Qbb5 Bc8 Q6b6 Ba6 Qf5 Re8 h8N Nh7 Qc4 Bb5 Qba6 Rd8 Qcb4 Rd5 Kg8 Bc4 Qbb5 Bb3 Qf1 Ke8 e7 Kd7 e6+ Kd6 Ng6 Rh5 e8N+ Kd5 e7 Nd8 Nc1 d3 Kh8 Kd4 Nc7 Nc6 e8N Re2 Qc8 d2 Qbb8 d1N Qcf5 Ne3 Nf6 Nc4 Ncd3 Rf2 Ng4 Rd2 Nb4 Kc3 N6e5 Kb2 Qd8 Be7 Qd6 Bd8 Bd1 Bd3 Bc2 Be2 Rd1 Rdd5 Rd3 Bh4 Re3 Rd2 Nbd3+ Ka1
n1qbB1QR/rB1pp2r/Q3P1N1/B1R1n1kq/2Q1B3/4q3/b1B2K2/1BQ3r1 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 f4 Nb8 fxg5 Bh6 Nh3 Bg7 Ng1 Bf8 g4 h6 g6 Rh7 Nd2 Rh8 Ne4 h5 g5 Bh6 Nf2 Bf8 Ng4 hxg4 c4 a5 b4 f5 h4 f4 e4 a4 c6 g3 b6 f3 e5 g2 e6 a3 b7 a2 c7 Ra3 c5 Rh5 b5 Na6 b8Q Ra5 b6 Rb5 c6 Ra5 g7 Nh6 g8B Rd5 g6 Rb5 b7 Nc5 g7 Ra5 Bd3 Ng4 Qa8 Nb3 b8Q Nd2 Bb1 Nf2 Qb4 Rae5+ Ne2 Ba6 c8B Bc4 c7 Reg5 Qa6 Rh7 h5 Ng4 h6 Ne5 Bb7 Qc8 B7e4 Bb3 Rh4 Ndc4 Bd2 Nb6 Qbc4 Na8 Nf4 f2+ Ke2 f1R Ba5 g1Q Qdc1 Qb6 Rh3 Rfg1 Ng6 Qb5 Bbc2 Rf5 Rb1 a1Q Rh1 Rfg5 Kf2 Ba2 Rh3 Qd5 Rb5 Qc3 Rc5 Qd1 Rh2 Qh5 Rh1 Qch3 Rh2 R5g3 Bb1 Ra3 Bec2 Rh8 Bh7 Qb3 g8B Bg7 Nf8 Qb6 Bhe4 Rh7 Ng6 Bh8 Nf4 Ra4 Bf7+ Kf8 Be8 Bf6 Rh3 Bg5 Ng6+ Kg8 Be1 Bd2 Rh2 Ba5 Bc3 Rh8 h7+ Kg7 Rh3 Kf6 Rh1 Rg8 h8Q+ Rg7 Qg8 Qa7 Rh2 Bb6 Ba5 Rh7 Ke3 Kg5 Rh4 Qcb8 c8B Bd8 Bcb7 Qc8 Kf2+ Kf6 Bc3 Qd1 Qc6 Rf7 Rh8 Qh5 Qd6 Ra6 Ba5 Rh7 Qc6 Qb6 Qd6 Qb3 Rb5 Ra7 Rc5 Qc3 Qda6 Qb3 Qa3 Kg5 Qc1+ Qe3+
2rR1B2/n2pQ1Bp/2Qn1N2/r2qBR1R/1R1P2bB/3n1B2/1K1k2nb/Bb6 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 Na6 b4 Bg7 Nc3 Nb8 Na2 Na6 axb5 Bf8 b6 Nb8 b5 Nh6 Nb4 cxb4 Ra5 Ng8 Ra6 Bh6 Ra1 Bf8 g4 Kf7 f4 a5 d4 e5 Kd2 a4 c4 a3 Kc2 e4 f6 Ke6 f5+ Kd6 g6 a2 b7 b3+ Kb2 e3 g7 e2 g5 e1N b6 Ng2 g6 Ne1 f7 Ne7 g8R Ra4 g7 Nec6 f6 Nc2 c5+ Kd5 Ne2 Ke4 Rh5 Ra7 Rb1 a1N Nf4 Qe8 Be2 Qe5 Qe1 Na5 c6 Qe6 c7 Na6 b8B Qc6 b7 Ncb4 Nd5 Nc5 Bf3+ Kd3 Qe7 Nac2 Bd2 Ne4 Bc3 Qa4 Rf5 Nac6 Rh1 Ra5 Rhh5 Rb5 Kc1 Qa5 Ba1 Ne3 Kb2 Na6 Qd8 Bc5 f8B Nd6 f7 Na7 Nf6 Ng2 Be7 Nb4 f8B Kd2 Qe8 Qb6 Bd8 Qc6 Qe7 Bb6 Ne4+ Kd3 Qh4 Qc5 Bfe7 Ne8 Be2+ Ke3 Kb1 b2 Rgf8 Qe5 g8R Qg7 R8f6 Bc5 Rb6 Nd3 Bf6 Qg4 Bg7 Ra5 Rb4 Ndf4 Qe1 Bb6 Bh4 Qf3 Nf6 Qd5 Kc2 b1B+ Kb2 Bc5 Rf8 Bd6 Rg8 Nb5 Ba7 Be5 b8B Ba6 Bc5 Na7 c8Q Bc4 Bd1+ Be2 Qc6 Kd3 Rf8 Bg4 Bf3 Bc7 Qe4+ Kd2 Bd6 Ng6 Bc5 Bh2 Qee6 N6f4 Be5 Rg8 Be7 Nd6 Rfb8 Rc8 Bef8 Rc7 Rd8 Rc8 Qe7 Nd3+
1nBBq3/p1r2rR1/R2N3B/1rB2b2/BB4Q1/PRQ1n1K1/k2qp3/1rR3b1 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Bf8 gxh5 f5 e4 Ne7 e6 Ng8 e5 Ne7 Nd2 Ng8 Ne4 fxe4 h4 Ke7 f4 g5 Kf2 b5 c4 d5 h6 g4 h7 d4 c6 d3 c5 d2 f5 b4 h5 e3+ Kg3 b3 c7 b2 h6 b1R c6 Bb7 c8Q Rb3 c7 Qe8 Ne2 Qb5 Nd4 Qd5 Nb5 Qe4 Nd6 Rb2 Bb5 Ba6 Ba4 Rb4 a3 Rb7 Rb1 Qc4 Rb3 Nf6 Qe2 Rg8 h8B d1Q h7 Qc6 Qd2 e2 Qc3 Nd5 Bh6 Qc2 Rc1 Qe8 B8g7 Qa2 h8B Rb5 Be3 Qd2 Bc5 Ne3 Bh6 Rg5 B8g7 Rg6 Bg5+ Rf6 B7h6 Bb7 Bh4 Be4 B4g5 Bg7 Qd7+ Kf8 c8B Rf7 f6 Bf5 e7+ Kg8 e6 Bh8 Kf4 g3 Kf3 g2 Kg3 Qf8 e8R g1R+ Kh2 Rf1 Re7 Qe8 Kg3 Rd1 Qb7 Rh1 Qe4 Rf1 Qg4 Rh1 Rc2 Rb1 Rc1 Bg7 Rb7 Rc7 f7+ Kf8 Bf4 Ke7 Rb6 Bf6 Ra6 Bd4 f8B+ Kf6 Bfg5+ Ke5 e7 Kd5 Kf4 Ng2+ Kg3 Bg1 Bb4 Ne3 Bh4 Qd7 e8R Qd8 Re7 Qe8 Rg7 Rf7 Rd1 Rc7 Bd8 Rf7 Qa1 Rc7 Ne4 Kc4 Rc1+ Qc3 Bb7 Rf7 Bfd6 Nd7 Bdc5 Rc8 Rb2 Rc7 Bc8 Nb8 Nd6+ Kd3 Rf1 Qd2 Rb3+ Kc2 Qf6 Qd5 Rc3+ Kb2 Rb3+ Ka2 Rc1 Qd1 Qc3 Qd2
3NR2b/p2b1Bk1/P1q1b1p1/1Q4p1/1n2r1QQ/Q1rB3K/1Q3QBB/Rrn5 w - - 0 1 legal: proof: d4 c5 b4 f5 bxc5 e5 dxe5 h6 g4 Qa5+ Nd2 Na6 gxf5 Qd8 Ne4 Nb8 Ng5 hxg5 f4 Kf7 Kf2 b5 Kg2 d5 e4 b4 c4 d4 h4 b3 a4 g6 f6 b2 c6 b1B c7 d3 h5 d2 a5 Nd7 f5 Rb8 h6 Rb7 h7 Bd3 a6 Rb2 e6+ Ke8 e7 Kf7 c5 Nb8 e5 Rb3 c6 Rc3 Nf3 Bg7 e8B+ Kf8 f7 Bh6 e6 Qe7 Ne5 Qf6 e7+ Kg7 Qc2 d1R Bf4 Ra3 Kh3 Bb5+ Bd3 Qd6 Qb2 Be6 c8B Rc1 c7 Rc5 Bb7 Qc6 c8Q Kf6 f8Q+ Bf7 Rhe1 Rac3 Bh2 Nd7 Re2 R5c4 Re4 Qd6 Nc6 Bg7 Nd8 Ne5 Re2 Ra4 Bg2 Bd7 Qc4 Qc6 Qg4 Re4 Re3 Nf3 Ree1 Nd4 Re2 Nh6 Ree1 Rg8 h8Q Nb3 Qh7 Rh8 Re3 Ng8 Qhh4 Rh7 Rg3 Ke5 f6 Bfe6 Bf7 Bh8 e8Q Nc1 Qfa3 Ne7 Rf3+ Kd4 Re3 Nd5 Bg8 Rh5 f7 Nb4 f8Q Rh7 Re2 Rf7 Re3 Rf1 Qff2 Kd5 Bf7 Kd4 Rg3+ Ke5 Rf3+ Rf4 Re3+ Kf6 Re5 Kg7 Re1 Bf5 Re5 Re4 Re7 Bde6 Qd7 Rg1 Re8 Rge1 Qd5 Bd7 Qda5 Bfe6 Qb5 Nb3 Qb7 Rb1 Qb5 Nc1
n7/1p1nR3/kq4BR/2Qn1p2/1R1R1p2/2R1QBrN/KPb2rr1/2b2RBB w - - 0 1 illegal: No proof kernel
2NNNB1b/RrBB1Bp1/6P1/2pK2N1/4qQn1/4Nb1N/3pprQ1/1k1n1b2 w - - 0 1 illegal: Other
1K1n4/2R4R/p1Npn2N/4nRn1/1RR2rPQ/B1pN1b1R/2r1RR2/3k4 w - - 0 1 legal: proof: b4 f5 c4 b5 h4 g5 hxg5 c6 a4 f4 axb5 f3 b6 Bh6 b7 Qb6 b5 Qd8 b6 Kf7 exf3 Bf8 f4 Ke8 f5 Bh6 Rh2 Bg7 Rh1 Bf8 Bd3 c5 Be4 e6 Bd5 Qc7 d3 Qc6 d4 Qb5 cxb5 exd5 Nc3 c4 Nb1 Bc5 dxc5 Kf8 Qa4 Kf7 Qd1 Ke8 Ke2 Ke7 Kf3 h5 Kf4 a6 Ke5 d4 g4 c3 f4 d3 c6 h4 f6+ Kf7 Kd6 Kg6 Kc7 d6 f7 d2 f8R h3 f5+ Kh7 f6 Kg6 f7 h2 Ra2 Rh7 Ba3 Be6 Nh3 Bd7 Nf4+ Kg7 g6 Kf6 g7 Ke5 Qe1+ Kd4 Qh4 Ke3 Nd3 d1N Re2+ Kd4 Nd2 Rh5 Nc4 Nb2 Na5 Nh6 g8N Nf5 Nh6 Nc4 Rc8 Nfe3 f8R Ne5 Rf5 Ng2 Rhf1 h1N R1f2 Ra7 Rh8 Nf4 Rh7 Be8 Kc8 Nd5 c7 Nbc6 b8R Nf4 b7 Ne6 b6 Ncd8 Nc6+ Kc4 Ra8 Kb3 b8R Ng3 Rb7 Ne4 Kb8 N4g5 c8R Bg6 Rbg7 Rf7 b7 Rf6 Rgc7 Rf8 R5f3 Rf4 Rh3 Be4 Ra7 Bf3 Rcf7 Rd4 Rf5 Re4 Ncb4 Rd4 Rc4 Rf4 Nc6 Rd4 Ne1 Rd2 Nd3 Kc2 Ka8 Kd1 b8R Rb2 Rbb4 Rd2 Kb8 Rc2 Nf7 Rh6 Rc7 Rf6 Nh6 Rg6 Rf8 Rf6 Rff7 Rf4 Rf8 Ne4 Rf5 N4g5
1bNq2NR/1B1k2Bp/3n4/B5B1/r2B2b1/Q1nK3P/BNn1r2p/Bbn2B2 w - - 0 1 legal: proof: b4 a5 bxa5 d5 a4 f5 c4 g5 cxd5 f4 h3 g4 Rh2 f3 exf3 g3 f4 gxh2 f5 Nh6 Bb2 Kf7 Qh5+ Kg8 Bd3 Nc6 Nf3 Nb4 Kf1 Rb8 Nc3 Be6 Rd1 Bd7 Bc1 Nc6 Nb1 Bc8 Ke2 Kg7 Rh1 Ng8 Ng1 Ra8 Ke1 Nb8 Qd1 Kf7 Bf1 Ke8 Ke2 c5 f4 b5 g4 e5 d4 e4 a6 b4 a7 c4 d6 e3 g5 b3 g6 c3 f6 b2 d5 c2 a5 Nc6 a6 Qe7 g7 Qd7 f7+ Kd8 f5 Rb8 a8B Qb7 a7 Qc7 f6 Nce7 d7 Qb7 Nc3 b1B Na4 Nf5 Nf3 Nh4 Nb2 Bb4 f8B Qb5+ Qd3 Ng6 f7 Ba2 Ng5 Bd6 Bb7 Bc5 a8B Nf6 g8N Qc6 Bg7 Ne5 f8B Bd6 Rg1 Nc4 Qa3 Bb1 Ne4 Qb6 Kd3 e2 Be3 Bf4 Rg2 Nd6 Bd4 Kc7 d8B+ Kd7 Bde7 Qd8 Rg1 Kc7 Rg6 Bg4 Rg5 Kd7 Re5 Nh5 Bg5 Nf6 Re8 Rc8 Be7 Rc4 Bef8 Ra4 Be7 Nb5 d6 Nd5 Bef6 Ndc3 Bd5 Be5 Ba2 Bg3 Bb7 c1N+ Ke3 Nb3 Rf8 Ke6 d7 e1N Nd6 Nc2+ Kd3 Be5 Nc8 Bb8 Bfe5 Nd6 Bef6 Qc7 d8B Kd7 Nce7 Qc8 Ba5 Qe8 Nc8 Qd8 Nge7 Rg8 Re8 Rf8 Bfe5 Rf4 Rh8 Rf2 Ng8 Re2 Nd1 Nce4 Ba1 Nc3 Nb2 Ncb5 Bef6 Nc3 Bd4 Nc1+
1B3q2/N1NB2r1/1Bp1n2p/2P1pB2/n1R2Qb1/3B1BqB/1b4Kb/k3r1NB w - - 0 1 illegal: No proof kernel
b7/KN2kq2/PR6/Brb1Nbr1/p3NRNR/6n1/1p1nBr1N/1R4RR w - - 0 1 illegal: No proof kernel
1n5B/1P5R/2bBbp2/BNNN3r/4p3/2bRN1B1/1rNBB2r/1qbK2k1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 b4 f4 b3 f6 e6 f7+ Kd7 axb3 Ne7 b4 Ng8 b5 Bd6 f8B Ke8 h4 Na6 g4 Bc5 f5 Bb6 f6 Be3 g5 Kd7 f7 Qf6 Qf3 Qd8 Qf6 gxf6 Bd3 Bc5 Bf1 Bd6 g6 Nc5 Ra5 Ne4 Ra1 Ng5 hxg5 Ba6 Ra4 Bb7 Ra1 Bc8 b4 c5 d4 h5 b6 a5 b5 c4 g7 c3 g6 c2 Nf3 a4 Nc3 e5 Ra3 h4 Be2 Bc5 d6 Ke6 d7 Kf5 d5 Kg4 d6 Kg3 Nd4 Ne7 g8N Kg2 g7 h3 Nh6 h2 g8N Rh7 Nhf5 Ng6 Nge7 Nf4 Bg7 Qf8 d8N Nd5 d7 Nc7 N8e6 Ra5 d8B Bb4 b7 Na6 b8B Qg8 Bd6 Nb8 Bh8 Qg6 Bd2 c1B b6 Rh6 Rb3 a3 b7 a2 Kd1 a1R Ne3+ Kf2 Bb6 Qb1 Ndc2 R1a2 Ra3 Rb5 Ba5 Rb2 Rb3 Rd5 Nc5 Be6 Nb5 Rh4 Rd3 Bc3 Bdc7 Rh3 f8B Rh7 Rg1 h1B Rg7 Rh2 Rh7 Kg1 Rh3 Rd4 Rh7 Bc6 N7d5 Rdh4 Be7 e4 Bg3 Rh6 Bed6 R6h5
R2n1nk1/3N2r1/2rqNKB1/PbR2npR/6b1/3NB1bN/2N3R1/B2N4 w - - 0 1 legal: proof: b4 b5 e4 d5 c4 h5 cxd5 f5 exf5 c5 a4 a5 bxa5 Ba6 g4 Bc8 gxh5 Rh6 Qb3 Rh8 Qb4 cxb4 axb5 Be6 Ne2 Bd7 Ng1 Bc8 Ke2 Kf7 Kf3 g5 Ke4 e5 h4 b3 f4 b2 d4 Nd7 b6 Nb8 b7 Nc6 b8N Ra7 f6 Bg4 f5 Bd1 d6 Be2 d5 Bg4 h6 Nce7 h5 Qc7 h7 Qc6 h6 Ng6 d7 Qa6 d8R Ba3 d6 N6e7 d7 Bc5 Nc3 b1B+ Bd3 Ra8 Rh5 Be3 Nc6 Qb7 Ra2 Ra6 Nd1 Qb8 Rg2 Bh3 Nd4 Qb6 Ra8 Bf2 d8N+ Kf8 f7 Be1 Nc2 Ng6 Be3 Bg4 Nh3 N8e7 Nc6+ Qd8 N6b4 Nc6 Rc8 Rg8 h8B Bg3 h7 Rg7 Rc7 Qf6 Rc8+ Nd8 Rc5 Rc6 Kd5 Ke7 f8N Kf7 Nd7 Nf8 Be4 Qg6 f6 Qh6 Bf5 e4 Nd3 Ba2+ Kd4 Bc4 Bg6+ Ke6 f7 Bb5 Bf2 e3 Ke4 e2 Be3 e1N Kd4 Rg8 Be5 Ke7 h8R Rg7 Ke4 Ke6 Ba1 Nf3 Rg8 Nd4 Rh8 Nh7 f8N+ Ke7 Ne6 Nf8 Bf5 Kf7 Kd5 Nh7 Re8 Nf8 Bg6+ Kg8 Ke4 Bf2 Ke5 Nf5 Kf6 Bg3 Rc4 Nb7 Ra8 Nd8 Rc5 Qh7 Rh4 Be1 Ng1 Qh5 Rhh2 Qh4 Rh1 Qg3 Rh5 Qd6 Nh3 Bg3
5N2/b1Bn1PrR/2bB1qBn/2K5/B1B3k1/N2R2B1/2q1R1np/rR3nN1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Qd7 cxd5 Qd8 Qg4 Na6 axb5 Ra8 b6 Nb8 b5 Qd7 Qf4 Qd8 Qb4 axb4 Ke2 Kf7 Kd3 c5 Kc4 e5 d4 h5 g4 h4 f4 e4 d6 h3 g6+ Kf6 b7 e3 b6 e2 d7 e1Q g5+ Kg7 d5 b3 d6 b2 Bd3 Qe5 Ra2 Qee7 Na3 b1N Re2 Rh6 f6+ Kh8 f5 Qh7 f7 Kg7 Bf4 Qf6 d8R Nd7 b8R Bb7 Bg3 Bc6 b7 Rh5 Bc2 Nh6 Ba4 Be7 f8N h2 Rbc8 Rh3 b8B Ra6 Rc7 Nb6+ Kd3 Ra8 d7 Nd2 Ra7 Nf1 Bd6 Rh4 Rc7 Rg4 Rb7 Kg8 g7 Kf7 g8B+ Kg7 g6 c4+ Kc2 c3 Kd3 c2 Bf7 Ng8 Be8 Kh6 g7 Kg5 Bg6 Nh6 g8B Ra7 Bc4 c1N+ Kc2 Nd3 Kb3 Nf4 Kb4 Ng2 Kc5 Qfg7 f6 Qgh8 f7 Qf6 Ra8 Ra6 d8B Ra7 Bc7 Ra6 Bh5 Qc2 Rd8 Kf5 Rbb8 Rg7 Bg6+ Kg4 Rd7 Ra7 Re8 Bd8 R8e5 Ra6 Rh5 Ra8 Bde5 Ra7 Rd3 Ra8 Bcd6 Bc7 Rh3 Bb8 Bc7 Ba7 Bed6 Ng8 Rh8 Nh6 Rh7 Re8 Red2 Re1 Re2 Ra1 Nf3 Nd2 Rb1 Nf1 Ng1 Nd7+
R1n5/P1rk1qqN/2R4R/rN1b2K1/N1B1R1nR/B1Rpn3/B1n1q2N/8 w - - 0 1 legal: proof: g4 c5 f4 f5 e4 h5 b4 a5 bxa5 e6 d4 Nc6 dxc5 Bd6 g5 Nb8 exf5 Be7 Qg4 Bf6 gxf6 hxg4 Kd2 d5 Ke3 b5 c4 g5 h4 e5 a4 e4 a6 g3 h5 b4 c6 g4 a5 g2 f7+ Ke7 f8N g3 c7 b3 f6+ Ke8 f5 b2 Kf4 e3 h6 d4 f7+ Ke7 h7 e2 f6+ Kd6 c5+ Kc6 a7 e1N a6 Qd5 Bc4 d3 Ra4 Nc2 Rh4 Nd7 Nc3 b1Q Ba3 Qe1 Nf3 g1N Ne6 g2 f8N Qd1 f7 Qd4+ Kg5 Rb8 a8B+ Bb7 a7 Qe2 Nb5 Ngf6 Nh2 Qdf2 Ba2 Qff1 Rae4 Nb6 Rh6 Re8 Bc4 Re7 c8R+ Rc7 Ba2 Nc4 Rhh4 N2e3 Rh6 Kd5 c6 Nfg4 Nc5 Qff2 Na4 Nf3+ Kf4 Nd4+ Kg5 g1Q Rh4 Rd7 c7 Ndc2 Rh6 Bc6 Bb7 Qa1 Ba6 Bb7 Rh4 Kc6 Ra8 Nd6 c8R+ Rc7 Rh6 Ne5 Rhh4 Ng6 Rh6 Qg7 Rhh4 Rg8 h8R Qff3 Nh7 Kd7 f8R Qff7 Rfe8 Bd5 R8e6 Ne5+ Rg6 N5g4 Rh6 Rb7 Rc3 Rc8 Rh4 Rcc7 Rhc8 Rc5 Rc6 Rc7 Nb2 Qd4 Rgh6 Nc8 Na4 Qh8 Nd6 Qhf8 B6c4 Ra5 Nb5 Q8g7+
3n2q1/2kNPnr1/4bBN1/1p1npN1B/1N2N3/6RR/RN4br/BK1qB3 w - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 e5 gxh5 Bd6 dxe5 Na6 c4 Bf8 c5 Nb8 a6 Be7 e4 f6 e6 Bd6 Qd4 Bf4 e5 Be3 e7 Kf7 Qb4 Ke6 Qb2 Kd5 e6 Kc6 Qe5 fxe5 Kd1 Bd2 Ke2 Ba5 Kd1 Bb6 cxb6 Nh6 Ke1 Ng8 Kd2 g5 Kc2 d5 e8R g4 f4 g3 a4 g2 h4 d4 a5 Bd7 a7 Ne7 a6 Bc8 h6 Ng8 f5 Kd6 b7 c5 f6 c4 h7 c3 h5 Kc7 f7 Bd7 f8B Nc6 b8N Qg5 h6 Qe3 Bb2 Qe2+ Nd2 d3+ Kb1 Qe3 Ngf3 g1Q Ra2 Qf4 Ba1 Qe4 Bb4 Qed4 e7 Qg6 Rh3 Qh4 Nd4 Bc8 Nd7 Qd6 Ne4 d2 Nf5 d1B Be2 Qf2 Bh5 Nd8 Rf8 Nf6 Rg8 Bf3 Rgg3 Nf7 Ba5+ Qfb6 Bb4 Rg8 h8N Nd5 h7 Rg7 Ng6 Bg2 h8B Qe6 Ba5 Rb8 Bb4 Qbd6 a8N+ Kc6 a7 c2+ Kb2 c1N Kb1 Nb3 Nc7 Na5 a8N Nb7 Na6 Nbd8 Nab6 Kb7 Nc4 Kc6 Nac5 Kc7 Nb2 Rb6 Be1 Rc6 Ncd3 Rc2 Ngf4 Qg6 Nb4 Rf2 Ndc5 Be6 Nd7 Qh7 Ng6 Qg8 Ne3 Rf1 Nf5 Rh1 Ng5 Rh2 Ne4 Rh7 Bf6 Rg7 Nb6 Qc5 Nd7 Qg1 Rga3 Qd4 Rag3 Qd1+
1r1bB3/kb1NrK2/pNb1n2R/qq5B/2bnR3/P1B5/N1N3RN/NR4q1 w - - 0 1 illegal: No possible last move
R2b2b1/1R1pkN2/2B2qnB/1KqrBR1R/2B3B1/1BbPb1rn/3N4/q5N1 w - - 0 1 illegal: No possible last move, all moves rejected
Kn1Qq2k/2BrbR2/1q2q1rN/1N1B3N/1NNrP3/2N1q2b/1Q4N1/5N1r w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 f5 fxe5 h5 a4 f4 axb5 Nc6 g4 Nce7 Ra6 Rh6 Rg6 Nf5 gxf5 Rh8 Rg4 hxg4 Kf2 Kf7 e4 a5 d4 g5 h4 Kg7 d6 c5 e6 c4 h5 a4 e7 f3 Ke3 a3 e8N+ Kh7 b6 f2 f6 a2 b5 a1Q d5 g3 f7 g2 b7 c3 Kd4 g4 Kc5 g3 Kc6 c2 b8Q Be7 h6 Bg4 Kb7 Nf6 f8N+ Kg8 d7 Bh3 h7+ Kf7 b6 Ng8 d6 Nh6 Ne2 g1R Ng6 g2 Nc7 Kg7 Nd2 Bg4 Nc3 Qg8 d8N Qf8 d7 Qf7 Ne5 Qb1 Ndc6 Qa1 d8N Qa3 Nde6+ Kf6 Nf4 Kg7 Nb4 Rd8 h8N Qg6 N7b5 Qa4 Nhf7 Ra6 Nec4 Nf5 Nh6 Qe6 Be2 Nd4 Nf1 Nc6 Bd2 Na7 Ka8 c1Q b7 Rd4 Qb3 Rb6 Qd8 Rbd6 b8N Rd7 Qb2 Bh3 Bd1 Qb1 Bb3 Qe1 Ba2 Qe3 Rh2 Rh1 Be1 g1R Ng2 Qb3 Bd2 Nc6 Be1 R7d5 Nd7 Nb8 Nf6 Rd7 Nh5+ Kh7 Ngf4 Rg6 Ng2 Qg8 Bd2 Kh8 Bc1 Qe8 Bd2 Qg5 Bf4 Qc5 Bc7 Qb6 Ncd6 Qf7 Bd5 Qf4 Nc4 Qe3 Nh4 Qe6 Rg2 Qb6 Rg4 Qe6 Rf4 Qb6 Rf7 Qe6 Nfd2 f1Q Ng2 Qff6 Nf1 Qb6 Nfd2 Qe5 Nf1 Qee6
knBr4/qN1QQpBq/p1q4Q/2Q4b/2P5/1Q3Q2/1QKn4/NQ1rRr2 w - - 0 1 legal: proof: f4 b5 d4 e5 fxe5 g5 b4 c5 dxc5 Qf6 g4 Qc6 h4 Ke7 a4 Qh6 axb5 Qf6 Ra6 Qf3 Rf6 Qc6 Rf4 gxf4 g5 Qe6 Nd2 Qf6 Nb1 Bh6 g6 Bg5 hxg5 Ke8 Rh5 Qb6 Rh1 Qd8 Kd2 d5 e4 Kd7 c4 Kc7 g7 Kb7 b6 h5 c6+ Ka6 b5+ Ka5 c7 a6 b7 Kb6 g6 Ka7 e6 f3 e7 f2 e8Q d4 e5 h4 e6 d3 e7 h3 Na3 h2 Bh3 f1R Ne2 Rf2 Qd7 Qe8 Re1 h1Q Qb3 Qe4 Nc2 Qh1 Bb2 Rf4 Nc3 Rf6 Na4 Rf4 Na1 Qd5 Nc5 Qd8 e8Q Qe5 Qee7 Nh6 g8Q Qf6 g7 Ng4 Qh7 Ne3 g8Q Rf1 Qgg4 Qg8 Qf3 Qc6 Qh6 Qh7 Bg7 Rd8 Kc3 d2 Bf5 Ng4 Kc2 Nf6 Qb2 Ne4 Qb1 Kb6 Bh3 Ka5 b6 d1Q+ Kb2 Qd4+ Kc2 Qe3 Qdg4 Nd7 Qg1 Ra7 b8Q Qd4 b7 Qe3 Kb2 Kb6 Bf5 Ndf6 Bh3 Bg4 c8Q Nd7 Qbh2 Bh5 b8Q+ Rb7 Qgg5 Qd4+ Kb3 Qg1 Qhb2 Qf2 Qge3 Qg1 Q8e5 Ka7+ Kc2 Nb8 Qeb3 Rbd7 Nb7 Rd1 Q5d6 Qgb6 Qc5 Ka8 Qcc7 Qa7 Bc8 Qf6 Qcd7 Qc6 Qff6 Nd2+ Qff5 Ne4 Qff3 Nd2+
2b3Bk/1N2Q1N1/2QR3B/1Qb3bQ/1BNbP3/3Bq1Nn/3r1q1q/1Knq4 w - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 h5 a4 f5 axb5 d5 g4 a5 c4 f4 cxd5 Ra6 Ra3 Rb6 Rg3 Rf6 Rg2 Rf5 gxf5 Nd7 Rg6 Nb8 Rg4 hxg4 e4 Kf7 d4 g5 Kd2 Kg7 Kc2 c5 h4 f3 b6 g3 h5 a4 d6 a3 d5 g4 e6 g2 b5 a2 b7 a1B e7 g3 e8B f2 b6 c4 h6+ Kh7 d7 c3 d6 Nf6 Qd5 Bb2 Nd2 Qe7 d8N Qg7 d7 Qg8 Kb1 Qg4 Bd3 f1Q Nc4 Qg8 Qc6 Qg7 Bf7 Nh5 f6 Qd1 Ne2 g1Q Ne6 g2 d8N Ba1 Ng3 Qg5 Ng7 Na6 b8Q Nf4 b7 Qh2 Qe5 g1Q b8Q Nc5 Nb7 Nh3 Qe7 Qgf2 Re1 Qge3 Bg8+ Kg6 h7 Nb3 Re2 Bb2 Rd2 c2+ Ka2 Bd4 f7+ Qf6 Ba3 c1B Bb4 Kh6 Kb1 Kg6 Qee8 Bfc5 f8B+ Kh6 Qe7 Kg6 Be6 Qff2 Qe5 Rg8 Qed5 Kh6 h8Q+ Kg6 Qhh4 Rh8 Qhg5+ Kh7 Qb5 Rg8 Qdc6 Kh8 Qh5+ Qh6 Ne8 Rg6 Bg8 Rd6 Ng7 Rd5 Rc2 Bg5+ Rc1 Qde2 Rd1 Nc1 Rd2 Qd1 N7f5 Qh7 Bh6 Qf7 Ng7 Qe3 Rf2 Rd8 Rf6 Rd5 Rd6 Qff2 Bf1 Bdf6 Be2 Rd2 Bd3 Bfd4
Q4r2/rnkN3N/2N1B3/2QPn1b1/B2n4/1p1QBN1r/2r4Q/1Brb1RK1 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 a4 h5 f4 Rh6 g5 Rh8 f5 Qe8 Ra3 Qd8 Rg3 Qe8 Rg4 hxg4 Nh3 Kd8 Ng1 Qc6 Qe2 Kd7 Qd1 Qf6 gxf6 Rh3 Nc3 Rh6 Nb1 Rh8 Kf2 b5 h4 e5 d4 g5 a6 c5 d6 e4 h5 b4 a5 c4 h6 b3 h7 c3 a7 c2 a6 Nc6 Be3 c1N Qd3 Be7 f8Q Nh6 f7 Ne2 f6 Rg8 h8Q Nc3 Bh3 Nb5 Nc3 Nd8 Na4 Nb7 Nb6+ Kc6 d7 g3+ Kf1 g4 d8N+ Kc7 Nf3 g2+ Kg1 Bd7 Qe8 Rf8 Nc6 Rc8 a8B Bf5 d5 Nd4 a7 Bg6 Nd7 Bh5 Kh2 Bd8 Rf1 g1R Qe7 Rg3 Qc5 Be7 Bg2 Rh3+ Kg1 g3 Qh7 Rfd8 f8N Ng4 f7 Ne5 Qh6 Bh4 Nh7 Bg5 f8Q Re8 Bh1 g2 Qg8 Rf8 Qh8 Na5 Bb7 Bg4 Ba6 Nb7 a8B Bh5 Bb5 Bg4 Ba4 Bh5 Bf2 e3 Qg8 e2 Be3 e1R Qh8 Nd6 Bb7 Rc1 Ba6 Ra8 Bc8 Bg4 Qh4 Nb7 Qg3 Rc2 Qh2 Ne6 Ndf6 Nd4 Be6 Ra7 Nd7 Rf6 Qa8 Rf8 Nd2 Bd1 Nf3 Rc4 Kf2 g1R Bg2 Rg3 Bgh3 Rc1 Bhf5 Rh3 Be4 Rg4 B4f5 Rgh4 Kg1 Re4 Qa6 Rf4 Bb1 R4f6 Qd3 Rf5 Ne1 Rf2 Nf3 Rfc2
1nN3B1/nr2R2N/4QQ1Q/3nB1Nr/4qN2/1rpBP1b1/1p1K4/1r1Q1B1k w - - 0 1 legal: proof: b4 a5 bxa5 d5 a4 h5 g4 e5 c4 f5 cxd5 Be7 f4 Bc5 fxe5 f4 Ra3 Bd6 Rg3 Bf5 gxf5 Bf8 Rg4 hxg4 h4 Kf7 d4 c5 e6+ Kf6 a6 g5 e3 b5 e7 c4 e8Q f3 d6 b4 d5 f2+ Kd2 g3 h5 g4 a7 Kg5 h6 b3 f6 g2 a5 g3 h7 Be7 a6 Nd7 f7 Rb8 a8B Qa5+ Nc3 Rb5 f8N Nh6 a7 Nb8 d7 Nf7 d8N Rb7 d6 Qe5 d7 Nd6 Nf3+ Kg4 Bb2 g1N Nb5 g2 Nde6 Kg3 d8Q Qe4 Nf4 Nh3 Ng5 g1R Be5 Nc8 Nd6 b2 Qed7 Rb3 Qe6 Rg2 Rg1 Kh2 Bd5 Bf6 a8B Na7 Nc8 Rg4 Rg2+ Kh1 Bd3+ f1R Qde7 Bg7 Q7f6 Rh4 Qh6 Rh5 Bab7 Rg8 h8Q Bf6 Bbc6 Rg7 Nfh7 Rgb7 Rg3 Bd8 Q8f6 Re1 Bf1 Bc7 Be8 Bd6 Bg6 Bc7 Qb6 Bd6 Bg8 Bc7 Qbe6 Bd6 Ne2 Nf4 Rg2 Nd5 Nf4 Qd4+ Bgd3 Qe4 Nf7 Bc7 Rg7 Bd6 Nfg5 Bc7 Qe2 Rb1 Re7 Bd6 Qd1 Bc7 Bc3 Be5 Ne2 Bh2 Nf4 Bg3 Be5 c3+
1b3q2/1kp5/1pnQR1N1/1QQRp1RN/2R2p1r/1BNN1b1P/2K1np2/Q7 w - - 0 1 illegal: No proof kernel
n1k5/1p1r2B1/QRb3R1/5q2/nP2BN1r/R1Qq1RB1/Q2n1nQ1/K2Bb1b1 w - - 0 1 legal: proof: e4 g5 h4 f5 exf5 d5 hxg5 a6 c4 Ra7 cxd5 Ra8 Na3 a5 Nc2 a4 b4 Ra5 Nd4 Ra8 Nb3 axb3 d4 Kd7 Kd2 e5 Kc3 h5 Kb2 c5 g4 e4 a4 h4 f4 e3 d6 h3 a5 c4 g6 h2 g5 e2 f6 e1Q a6 Rh6 d5 Rh7 f7 Bg7+ Qd4 Qh4 f8B Nc6 f5 Qg3 a7 Rh3 f6 Rh6 f7 Rh5 Qc3 Qe7 Bg2 Rh6 Ra3 Qf6 Nh3 Rh7 Bf4 Rh6 Be4 Qf5 Rg1 h1N Ka1 Bd4 g7 Nf2 g6 Nge7 g8B Nd8 g7 Qd3 Bg3 Ne6 Nf4 Nc7 Bh7 Be3 g8Q Rh4 Bg7 Bd4 f8R b2+ Ka2 b1N Ka1 Rb8 a8Q Nd2 Qa6 Na8 Bg6 Bb6 Bh5 Be3 Bd1 Bd4 Qb2 c3 Qa2 Bc5 Rf6 c2 Rg6 c1B Rf1 Nb1 Qh8 Bd2 Qg8 Be1 Qh8 Nh1 Rf3 Bg1 Qg2 Nd2 Qg8 Be3 Qf7 Kd8 d7 Bg1 Rb6 Kc7 d8R Bd7 Rg8 Rd8 d6+ Kc8 Qa2 Bc6 d7+ Kb8 Bf8 Nd5 Rg6 Nf2 Bh6 Nc3 Bg7 Rc8 d8Q Na4 Qf6 Rd8 Qd4 Kc8 Qc3 Rd7
1qrB2RR/bQNn1QQp/K1n1Np2/3R3b/2Rr3n/4rN1q/4QP2/4N2k w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Kd7 e3 e6 d6 Bb7 d5 Qe7 Bc4 Qd8 Bb3 Bc8 Ba2 Ke8 d7+ Ke7 Bc4 Kd6 Bb3 Ke5 d6 Kf5 Bd5 exd5 Ra3 Ke5 Ra1 Ke6 Kd2 Ke5 Kd3 c5 g4 a5 b4 d4 Kc4 Ke4 g6 a4 b6 d3 Kb5 a3 g7 c4 g5 a2 b7 c3 g6 d2 Rh4+ Kd5 e4+ Ke5 Na3 c2 Nf3+ Kf6 e5+ Kf5 e6 Na6 b8R Qc7 d8Q Be7 d7 Bc5 e7 Nh6 g8Q Ba7 e8N Nc5 Qe2 d1R g7 Rd4 Bg5 c1Q Nc2 Qa3 Rd1 a1N Nce1 Nab3 Qde7 Na5 d8N Nd7 Ne6 Nc6 Qef8 Bb7 Bd8 f6 Qff7 Qg3 Rc8 Qb8 N8c7 Qb3 Qgf8 Qe3 Q8e7 Re8 g8R Qc3 Qg7 Qe3 Qef7 Qc3 Nc5 Re3 N5e6 Qb3 Rg4 Qc3 Rh8 Qa3 Rg5+ Ke4 Rc5 Nf5 Rc4 Nh4 Rd3 Na5 Rd2 Bd5+ Ka6 Qd3 b5 Nc6 b6 Qb3 Nf8 Be6 b7 Bg4 Nfe6 Bh5 Neg5+ Kf4 Rd3 Kg4 Nge6+ Kh3 Rd2 Rde4 Rd5 Rd4 Be7 Qd3 Rcg8 Qf5 Bd8 Qg4 Nd2 Kh2 Ndf3+ Kh1 Nb5 Qc7 b8Q Qh3 Qb7 Qf4 Nbc7 Rc8 Nb5 Qb8 Nbc7 Ree4 Nfg5 Re5 Ngf3 Re3
N3B1r1/1R1Brpb1/1Br5/1p3Q1b/rQ4R1/K3nP1R/1QRqp3/2Bk1n1Q w - - 0 1 illegal: No possible last move, all moves rejected
BB1bNB2/6RR/qk1K2Pr/1N4B1/r2qNR1n/3b1Rp1/7r/3qRr1N w - - 0 1 legal: proof: e4 d5 f4 Kd7 c4 b5 cxd5 g5 fxg5 b4 d6 Ke6 d7 b3 axb3 Bg7 b4 Kd6 b5 Bf8 g4 Ke6 d4 h5 d5+ Ke5 g6 Kf6 g5+ Kg7 Qg4 hxg4 d6 Nc6 Nh3 Nb4 Ng1 Nd5 exd5 Ba6 Ra5 Bb7 Ra1 Bc8 Ke2 c5 Kd3 f5 Kc4 e5 b4 a5 h4 f4 h5 f3 b6 f2 Nd2 a4 b5 a3 b7 e4 b8R a2 b6 g3 b7 e3 Nh3 e2 Bg2 e1Q Rf1 Rh7 h6+ Kh8 Ba3 Qc7 d8N Qb6 d7 Qd1 d6 Qa7 Kd5 c4 Ne6 Rf7 g7+ Kh7 d8B Kg6 h7 Kf5 h8R c3 g6 c2 d7 Qb1 Bde7 c1R d8R Nh6 g8N Rh7 Nc7 Rc2 Bg5 Be7 Rd7 Bd8 Nf6 Qbb6 Rae1 a1Q Rf7 Qd1 Bf8 Ra2 Rg7 Qd4+ Kc6 Qa5 Be4+ Ke5 Nfe8 Bf5 Rc8 Rb2 b8B Qaa7 Bd5+ Be4 Kd7 Nf5 Kc6 Rh5 Rhh7 Rh6 Kd7 Nh4 Kc6 Qaa4+ Nb5+ Kf5 Rcc7 Ke5 Rgf7 Qa3 Rf4 Ra2 Rcg7+ Qd6+ Kb7 R8a4 Kc8 Rb2 Ba8 Ke6 Nf3 Re2 Nd2 Bd3 Kb7 Kd5 Ne4 Kc4 Kc8 Kb4 Kb7 Ka5 Kc8 Bf6 Kb7 Qa6+ Kc7 Qe3 Kd7 Kb6 Kd6 Bd8 Rh1 f1R Nhf2 Rg1 Rh2 Rc2 Nh1 Rf1 Rhf2 Re2 R2f3 Rh2 Na3 Qg1 Nb5 Qd4+
6B1/1p1rR3/Pr1N4/3b1N2/R5Kb/np2qNR1/kN1BB1B1/r1RRn1b1 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 c4 f5 exf5 c5 cxd5 g4 Qa4+ Nc6 Qb4 g3 hxg3 cxb4 g4 Nb8 g5 Qd6 Nf3 Qd7 Ng1 Qd8 Ke2 Kf7 Kf3 h5 d4 e5 a4 h4 g4 b3 a6 h3 a5 h2 f6 Qe8 d6 Ke6 d7 Kd5 d8R+ Nd7 f7 Be7 f8N Rh6 g6 Bc5 g5 e4+ Kg4 e3 f4 e2 f5 Kc4 d5 Qe7 g7 Ba3 g6 Bd6 f6 Kb4 a7 e1B f7 Rh7 a6 Qe5 Bd2+ Qc3 Ra4+ Kc5 Ne6+ Kb6 f8R Rh8 Bg2 Kb5 Rfe8 Nc5 Nf3 Rh6 Re7 Bh4 Rc1 h1R Rdd7 Bh2 d6 Rb8 a8R Nd3 Ned4+ Kc5 Na3 Bg1 Nc4 Ne1 Nf5 Qe3 Rd8 Be6 d7 Bd5 Nb2+ Kb5 Raa1 Rc8 Ra4 Rc6 Rac8 Rb6 Rd1 Rd6 Rcc1 Rh7 Rb8 Rb6 d8N Nh6+ Kh5 Be6 g8B Nf7+ Kg4 Nd6 g7 Bd5 Nf7 Nc4 Rc8 Na3 R8c3 Rhh6 Bh7 Rhd6 g8B Rd7 Bg6 Nac2 Bh5 Na3 Ra5+ Kb4 N7d6 Nac2 Rb5+ Ka3 Rb4 Ka2 Ra4+ Na3 Be8 Rd8 Bb5 Rd7 Be2 Qc5 Ne5 Qf2 Rg3 Qe3 Nf3 Bf2 Rc2 Nd3 Rb1 Rc1 Rc7 Ne1 Rc3 Bg1 Rc5 Rc3 Rd1 Rc1 Rcc4 Rb1 Rcc1 Ra1
3Rn3/3B2p1/2BN1r1p/1K1q3P/R4NR1/1NR2q2/1bbrN1B1/R1Bkr1rn w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 f5 g4 Bb7 gxf5 Bc8 Qd4 exd4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 b4 a5 h4 d6 f6 a4 b6 d5+ Kb5 h6 c4 a3 b7 a2 f5 d3 h5 d4 f7 d2 f6 Ke3 c6 d3 c5 Ra6 c7 Bh3 c8N Qd7+ c6 Qe6 c7 Bc5 f8R Qf7 Nd6 Nd7 b8R Bf5 c8B Bh7 Rh3+ Kf2 e4 Ke1 e5 d1Q e6 d2 e7 Qe6 e8B Qf3 f7 d1R Nd2 Bf2 Nb3 Be3 Bg2 Ne7 Ra8 Nf5 Ne2 Nf6 Bc6 Ng3 Rd8 Bc2 f8N Rd2 Ng6 Kd1 Ngf4 Re8 B8d7 Nh1 Rg3 Bd4 Rg4 Bb2 Rdc8 Ra3 Ra4 Rf8 Ka6 Qc4+ b5 Qcd5 b6 Ne8 b7 Rf5 b8R Rf6 Na5 Rc3 Nb3 Re3 Rd8 Re4 Rb5 Re3 Rc5 Re4 Rc3 Ree6 Ned4 Re1 Nde2 Rg1 Rb1 a1R Kb6 Qg8 Kb5 Qgd5+ Nc5 Qe6 Nb3 Ke1 Re4 Ra4 Ra1 Kd1 Ng3 Qf7 Be6 Ra7 Rea4 Re7 Bed7 Ree1 Nge2 Q7d5+
4KNR1/n2bP3/rr3R2/1BNQ1q2/6Bk/2q1PqN1/1rbQ2r1/1QR1B3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 fxe5 Be7 c4 Ba3 cxd5 Bf8 b4 gxh4 b6 Nd7 b7 Bc5 bxc5 Nb6 cxb6 Qe7 Ba3 Qd6 Bc1 Qd8 Kf2 Ke7 Kf3 f5 Kf4 c5 Kg5 a5 b8Q h5 Kg6 h3 d4 h4 g4 a4 e6 a3 e3 h2 g5 f4 b7 f3 Ne2 f2 Qd2 a2 Ng3 h3 Bb5 f1B Nc3 c4 Na4 c3 Nc5 Bc4 Rf1 h1R Rf6 h2 Kg7 c2 g6 Qa5 d6+ Kd8 Kf8 Bb3 g7 Ne7+ g8B Nc6 d5 Rg1 d7 h1Q Bb2 c1Q Bc3 Rg2 Kf7 Qc2 Rc1 a1R Qd6 Qd3 b8Q Rh6 Bh7 Ra3 Bf5 Na7 Bg4 Bc2 Rf5 Qa4 Ba6 Ra2 Qf2 Qb3 Be1 Qhf1 Qd2 Qbc4 Qb1 Rb2 Bb5 Rb8 Qe5 Ra2 Qe4 Rb2 e7+ Kc7 d8R Qf3 Rf4 Ra6 Rg8 Kd6 Ke8 Rbb6 Rf6+ Be6 Qd4 Qcc3 Qc4 Ke5 d6 Bc8 d7 Qh7 d8N Qhd3 Rc6 Qdf5 Nde6 Kf6 Nf8+ Be6 Rh8 Kg5 Qcd5 Bc8 Rg8+ Kh4 Rf6 Bd7+
1Q1QRB2/2n4R/2n3BP/4nK2/1bR3Br/q1n2N1r/bN1rP2Q/1Nk1n3 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kb4 d4 f5+ Ke5 c5 b6 g5 b7 f3 d6 g4 d7 f2 a6 f4 a7 g3 d5 f3 h6 c4 d6 c3 h5 c2 h7 Kb3 Qe1 g2 Ra4 Nc6+ Kf4 Nge7 b8N Qa5 d8Q Be6 d7 Ng6+ Ke4 Nge5 Rc4 Qa3 Na6 Bb4 Bh6 Kb2 Qb8 c1N d8Q Na2 Nc5 Nc3+ Kf4 Bg8 Na4+ Kc2 Bf8 Bf7 Nh3 g1N Nb2 Bg8 Bg2 f1R Kf5 f2 Ng5 Ngf3 Bh3 Bd5 Rh2 Rh1 Bg4 f1N Qf2 Ne1 Nf3 Kc1 Rh4 Rh3 Qh2 Rg8 h8R Ne3+ Kf4 Rg6 h6 Bg8 Rh7 Nd5+ Kf5 Rd6 Rh5 Nc7 Rg5 Qa1 Rgg7 Rd4 Re7 Qa3 Re8 Re4 Qb5 Rc8 a8B Rd4 Qb8 Rd2 Rf4 Ba2 Rc4 Na5 Bd5 Nac6 Bf7 Rh4 Bg6 Rh3 Qd5 Rd8 Qg8 R8d3 Qd5 Rh4 Qdd8 Re3 Nd4 Rg3 Nf3 Rgh3
Kb1Rq1R1/1QB1Nr2/3PQbPR/1rnN3r/8/1Q3r2/1N2bq2/kBb1B3 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 b6 e5 b7 h5 b8B a5 f6 c5 g7 h4 f7 c4 d6 a4 Kd5 f3 Kc6 h3 g6 f2 d5 e4 d7 a3 Bd3 f1R Nf3 h2 Ne5 c3 Bd2 a2 Be1 e3 Nc4 e2 Bc7 Bd6 f8Q Rh5 Qe8 Nf6 g8N Ra3 Qe6 Qe8 Ne7 Ba6 b3 Rg5 Nb2 Ne4 Qc2 Bb5+ Kb7 Rf7 d8R Nc5+ Kb8 Ba6 Ka8 Rgf5 Be4 Rf3 Qd3 Ra5 Qd1 Be5 Bc2 Bf6 d6 Rb5 Qdd5 Bd4 Qb7 Be3 Nd2 Ka3 Bb1 c2 b4 c1B Ne4 Bf2 Nc3 Bg1 Bd2 e1Q Ncd5 Qf2 Be1 Kb3 Bc2+ Ka3 Rb1 a1B Be4 Ra5 b5 Ka2 b6 Rb5 Bc2 Rb4 Bf5 Be2 Bd3 Bh6 Rc1 Rb5 Rc4 Bc1 Bb1+ Kb3 Rh4 Ka3 Rh6 Kb3 Nd1 Bf6 Nb2 Ka3 Rh8 Kb3 Rg8 Ka3 Be4 Ka2 Bb1+ Ka1 Qb8 Qg3 b7 Bge3 Qbc8 Qf2 b8Q Bed4 Qcb7 Bde3 Rg1 h1R Rf1 Rh5 Rh1 Ne4 Rh4 Ba7 Rh3 Nc5 Rh1 Re5 Rhh8 Rh5 Rh6 Ra5 Qb3 Rb5 Qb7 Bb8
1R1r3B/1B1N1PNk/1bRq1Qr1/1N3B2/Kbn1b1q1/3P1Rr1/Q7/Q1r3b1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 b4 h5 b6 c5 d6 e5 f6 a5 b7 e4 b8Q a4 b5 e3 b6 f3 d3 h4 g7 Kf7 d7 Kg6 f7 c4 b7 c3 Qd6+ Nf6 g8B c2 Nc3 h3 Bg2 a3 Bb2 e2 Kd2 f2 Nb5 f1Q Kc3 e1B+ Kb3 h2 Rc1 a2 Nf3 Ba5 Ka4 a1B b8R Qe2 Rf1 Ra6 Ne5+ Kg7 g6 h1R Bc6 Ne4 Bh7 Rh3 Bb7 Nd2 Qb6 Qh5 Rf3 Bfb4 Bc3 Qc7 d8N Bf5 Nd7+ Kh6 Bd4 Be4 Ne6 Rd8 g7 Qg4 Bf5 Rg3 Qc6 Qe5 Qc4 Rc6 g8Q Bb6 Qa2 Qc5 Bh8 Bd4 Qe8 Bg1 Ng7 Rg6 Qe7 Kh7 Qf6 Qd6 Qe1 Nc4 Qec3 Na3 Qca1 Rh3 Rcf1 Rg3 R1f2 c1R Rc2 Qc6 Rc4 Qd6 Rc6 Nc4
q5b1/BNPK2r1/BqBRR1p1/3Q1N2/5Rq1/3N1P1Q/3k2nn/Qr2b1r1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 g6 c4 d6 h4 d3 a6 e4 a7 d2 f3 e3 h6 e2 b6 e1Q b7 Qee8 c5 Qb6 c6 Qb4 h5 Kg5 h7 Kf4 c7 Ke3 h6 Nc6 b8N Nd4 f6 Ne6 f7 Qb6 Nc3 Qa6 Nb5 Qb7+ Nc6 Be7 f8R Bh4 Ra6 Rb8 a8B Qb6 Ncd4 Be1 Bc6 Qd7 Nge2 Nf6+ Kc4 Rg8 h8Q Ng4 Kd5 Qd8 h7 Rg7 Rf4 Nh2 Nf5+ Kd3 Ba3 Qe8 Qa1 d1R Nc1+ Kd2 Qg8 Qd8 h8Q Qg5 Ba8 Qg4 Bc5 Bd7 Bg1 Be8 Qh3 Bf7 Nd3 Rb1 Bc6 Re8 Ke4 d5+ Ke5 d4 Kd6 Rb8 Kd7 Ra8 Re4 Nf4 Re6 Ng2 Nbd6 Re8 Nb7 Ra8 Ne5 d3 Ra4 Ra5 Rf4 Rc5 Bd4 Rcc1 Rd6 Bg3 Be2 Rg1 Qd8 Be1 Bf1 Qb5 Ba7 Qb6 Qg5 Kc2 Qd8 d2 Ba6 d1Q Nd3 Kd2 Qg8 Qa4 Qd8 Qa3 Re6 Qf8 Rd6 Bg3 Qg5 Qa8 Qgh5 Rgd1 Re1 Rdc1 Ree6 Rg1 Ne7 Bh4 Qd5 Be1 Nf5 Bg8+
Rb3nb1/2P1K3/Rn2bN2/2N3rr/1Q1B1kP1/BQ2p2B/1Q1bq2R/6rN w - - 0 1 legal: proof: d4 b5 e4 f5 exf5 g5 a4 h5 axb5 c5 g3 cxd4 f3 h4 gxh4 g4 fxg4 Bh6 Qf3 Bg7 Qd1 Bf8 Kd2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 e5 c4 a4 b4 a3 h5 d3 h4 d2 h6 d6 h5 Kg5 c5 a2 h7 e4 c6 e3 f6 Bh6 c7 Kf4 f7 Qe7 f8N Qe8 b6 Ra4 b5 Bd7 b7 Ra3 b6 Bg7 h6 Bc3 Qb3 d1B Bh3 Bd2 Nc3 Qg6 Rh2 Qc2 Ne4 Ra5+ Nc5 Nf6+ Kd4 d5 Ba3 Be6 Nfd7 Rg8 h8B Nh7 Nf6 Nd7 b8R Rg5 b7 Nb6 Ra8 Nf8 b8Q Be2 h7 Bc4 Qb4 Qd1 Bg7 Qe2 h8Q Bb3 Qh7 Bg8 Qb1 Rb5 Qb2 Be6 Rc1 a1B Rc4 Ba2 Qb3 Rh5 Rca4 Qd1 Ncd7 Nc4 R4a6 Ba5+ Qd3 Bf7 Ne8 Bg8 Qc3 Bb2 Qb6 Bc1 Qc5 Bb6 Qb2 Ba7 Qb6 Rc5 Q6b4 Nb6 Bf6 Bb8 Ne2+ Kf3 Ng3 Qe2 Nh1 Kf4 Q4d2 Ra5 Qdb5 Bb3 Kc5 d4+ Kd6 d3 Bd4 Bbe6 Q5b3 Rag5 Qdb4 d2 Nef6 d1R Nc5 Rg1 Ke7 Bd2
BR2R2N/2K3Pp/2R1QB1P/3B2q1/b1n2nNQ/b2k4/2b1n2b/N3rQn1 w - - 0 1 legal: proof: b4 e5 d4 f5 dxe5 g5 g4 c5 a4 a5 bxc5 b5 axb5 Ra6 f4 Rg6 Qd5 fxg4 Qd1 g3 Nf3 g4 Ng1 Rg5 fxg5 Ba6 Nd2 Bb7 Nb1 Bc8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 a4 c4 a3 h4 g2 e4+ Kg6 h5+ Kg7 c6 g3 h6+ Kg6 e6 a2 e7 d6 e8R Qe7 b6 Ba6 b7 Qf6 e5 Kf5 c7 Bb5 c8Q+ Bd7 c5 Qe7 c6 Qf6 g6 Qe7 g7 Qg5 c7 Qd8 e6 Nc6 b8Q Nd4 e7 Nf3 Nh3 g1N Bg2 Nd2 Na3 Ne4 Bb2 Nd2 Bf6 Ne2 Nf4 Nc4 Rb1 a1B Nc2 Be5 Ng6 Bf4 Qa6 Ba4 Na1 Be5 Bf3 g2 Qb4 g1N Qf1 Bh2 Rb2 Bc2 Kc6 d5 Qa2 d4 Bd5+ Bf4 Qbe1 d3 Rb8 d2 Qh4 d1B Kb7 Ba4 Rh3 Bdc2 Rc3 Nb2 Rc6 Nc4 c8N Qa5 Ne5 Qd8 Ng4 Qa5 Bf3 Bh2 Nd6+ Kf4 Nf7 Qg5 Kc7 Kf5+ Be5 Nf6 Qb3 Rg8 Nh8 Nh5 Bd5+ Nhf4 Bd4 Be4 Bf6 Bc2 Be6+ Ke4 Qb6 Qb5 Bd5+ Kd3 Qa6 Qc5 Qc8 Qe3 Qe6 Qd2 Red8 Qc1 e8B Ba3 Bd7 Rf8 Re8 Qe3 Bc8 Qc5 Bb7 Rf7+ Kc8 Re7 Ba8 Qe3 Kd8 Qe5 Kc8 Qg5 Kd8 Rb7 Kc8 Rb1 Kc7 Re1
1nRq3k/1QR1bP1b/q4NK1/4N1n1/1b1BQNq1/3p1Q2/B3q1bP/2R3B1 w - - 0 1 legal: proof: e4 f5 d4 c5 g4 cxd4 a4 h5 gxh5 b5 axb5 f4 Kd2 a6 Ke2 Nc6 Ke1 Nb8 f3 g5 Qe2 e5 Qd3 a5 Qd1 Rh7 Bd2 Rf7 Be3 Rf5 exf5 e4 Bd2 e3 Bc1 Ra6 Ne2 Re6 Ng1 Re4 fxe4 Ke7 Nh3 Kf7 Ng1 Ke8 Ke2 Kf7 Kd3 Kg7 b4 d5 c4 a4 f6+ Kh8 c5 e2 b6 e1B e5 f3 h6 a3 b7 f2 c6 a2 c7 g4 b5 g3 b6 g2 h7 Nc6 b8N Bd6 e6 Na7 f7 Qg5 e7 Ba5 e8Q Bd7 c8R Bg4 b7 Nc6 Nf3 g1Q Qe4 Bf5 Nc3 Q1g4 Be3 Be7 Nd7 Bab4 Rc1 a1Q Ne2 Nb8 Nf6 Qa6+ R1c4 Q5h4 Ne5 Bg6 Bg2 f1B Bg1 Qf2 Bh3 Bg2 Nf4 Qe1 Qf3 Qeh4 Ke2 d3+ Ke3 d2 R4c7 Qhg5 Kd4 d1Q+ Ke3 Qde2+ Kd4 Nd7 b8Q Bf5 Qb7 Nb8 Bf2 Bg6 Rhc1 Bf5 Bg1 Q5h4 Ned7 Bg6 Ke5 d4 R7c4 d3 R4c7 Qgg3 Be6 Qgg4 Ne8 Nf6 Bd5 Nh5 Ba2 Ng3 Nef6+ Bf8 Qee3 Ne4 Qd4 Ng5+ Qde3 Kg7 Qee4 Bfe7 h8B+ Kh6 R7c3 Bh7 R3c6 Bg8 R6c7 Qgg3 Kf5 Qgh3+ Ng4+ Kh7 Bhd4 Q3g3 Nde5 Kh8 Nf6 Qgg4+ Kg6 Qhf2 Bc3 Qd4 Ba1 Qd8 Bad4 Bh7+
1rBN1q1k/3R1P1n/2Qb2Br/2n1R3/2bNB1Kp/1R1r1pQ1/Q2Pn3/6N1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 hxg5 Nf6 c4 Ng8 cxd5 Ba6 Rh6 Bb7 Rh1 Bc8 exf5 e5 f4 Bd7 f6 Be6 f5 Bc8 b3 Kd7 Ba3 Ke8 Bc5 Be6 Be3 Bc8 Bf4 exf4 Ke2 Kf7 Kf3 a5 g4 c5 b4 h5 g6+ Ke8 d6 h4 g5 c4 f7+ Kd7 f6 Ke6 d7 c3 g7 a4 g6 c2 b6 c1R b7 a3 b5 a2 b6 Ra7 Qc2 Rh7 Nc3 Be7 f8Q Bd6 f7 Kf6 Qe8 Nh6 g8B Kg7 Ba6 Nf5 Kg4 f3 Nce2 Ng3 Nd4 Rh5 Bh7 Nc6 b8R Rd1 b7 Ne7 Rc1 a1N Qa2 Rd5 Rc7 Ng8 Qe4 Rh5 Qc6 Rb1 Rh2 Rbb5 Re2 Rh6 Re8 Nb3 Re5 Kf6 g7 Qf8 Bg6 Nc5 Be4 Ne2 Bg6 Rb3 Be4 Rd3 Bg6 Ne7 g8B Kg7 B8h7 Ng8 Be4 Ra8 Bhg6 Ne6 d8N Nc5+ Rd7 Nf6+ Kh3 Nh7 Kg4 Ra7 Ra8 Kh8 b8Q Rb7 Ra7 Rb4 Rb7 Rb1 Rb3 Bb7 Qbc7 Ba8 Bc8 Bb7 Q7b6 Ba6 Qb8 Bc4 Re6 Be7 Qg3 Bd6 Re5 Rb2 Ra3 Rb4 Rb3 Rb8
1Q1B2NB/2r2PrB/2P1NR2/1b1N4/Q2npQb1/b2k2p1/R5RK/2q2qn1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 Kf2 a5 Kg3 d5 b4 h5 c4 e5 g6+ Kf6 c6 a4 g7 h4+ Kh2 a3 g4 a2 c5 d4 b6 d3 b5 d2 g5+ Kf7 f6 Kg6 f7 Kf5 c7 Ke4 f5 Qd3 f6 Ra4 c6 Bg4 c8Q Qd8 b7 Bb4 f8R Ra5 g6 Qd6 b6 Qd7 Bb2 Rc5 Nh3 Ra5 Ng5+ Ke3 Rg1 Qe6 Bd3 Qf5 Qa4 d1B Nc3 Qf1 Rg2 Nd7 b8Q Rh7 b7 Bde2 Qcc7 Ne7 g8N Ba3 g7 Nf5 Ne6 Nd4 Nd5+ Kd2 Bf5 e4 Qf4+ Kd3 Bc3 Rc5 Ba5 Ne5 Bd8 Ra5 Rf7 Ra7 Rf8 Rh6 Bh7 Qc1 f7 Rg6 Re8 Qe3 Rf1 a1Q Rff2 Bf1 Ra2 Bfe2 Re7 Qf1 Rd7 Qec1 Rd6 Qd2 Qa8 Rg5 b8B Qdc1 Bbc7 Rg6 Qb8 Rb7 Bf6 Ra7 Bcd8 Rc7 Nge7 Rg5 g8Q Rg6 Bh8 Rg7 Qc8 Bh5 Qb8 Nef3+ Kh3 Ng1+ Kh2 Rg6 Qg7 Bhg4 Qge5 Rg7 Ng8 Bef3 Ng5 Bd1 Rf6 Bb3 Ne6 Bc4 Qeg5 Bb5 Qg6 Be2 Qgg3+ Bf3 Qe1 Bg4 Qeg3+ hxg3+
Rb5B/1Rp1nQb1/1N1r3Q/NPKN3q/2np2k1/1P2B2R/Qn5r/1q5B w - - 0 1 legal: proof: e4 e5 b4 h5 g4 b5 gxh5 f5 exf5 Bb7 a4 Bg2 axb5 Bd5 d4 Bb3 cxb3 exd4 Kd2 Ke7 Kd3 Kf6 Kc4 a5 f4 g5 h4 g4 b6 g3 h6 d3 h5 d2 b5 g2 h7 d6 b7 a4 h6 a3 Qe2 d1Q Nf3 g1B Qa2 Bd4 Ne5 Ra6 Nc3 Ra5 Bg2 Bg1 Rh3 Qc8 Bh1 Na6 b8R Qh5 Rb7 Bg7 Nc6 Nc5 Be3 Ra6 Na5 Na4 Kb4 Nb2 Nd5+ Kf7 f6 Ke6 f7 Kf5 f8N Ne7 Nd7 Kg4 N7b6 Qcf5 Nc8 Qc2 f5 Qb1 f6 Bf2 f7 Bg1 Ndb6 d5 f8Q Bf2 Qf7 Bg1 Na4 Rd6 Nc3 Bf2 Bc1 Bb6 Be3 d4 Nd5 Ba7 Ncb6 Bb8 Kc5 Qf1 Qb1 a2 Qc2 Qb1 Qd2 Rf8 h8Q Re8 h7 Rf8 Qe8 Rf2 Qf7 Rg2 Qhf8 Rh2 h8B Qe1 Rc1 a1N Qdf2 Nc2 Ra1 Na3 Qc2 Bf6 Qh6 Nac4 Qb1 Bg7 Ra4 Qc1 Qa2 Qf5 Nc6 Qa1 Ra8 Qab1 Na5 Qh5
1rbR1qKb/1P2B2N/3npR2/5B1q/2p1N2N/2qQ2Q1/kP1Q1B2/2R1r1b1 w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 h5 a4 c5 axb5 c4 g4 Na6 d4 Nc5 dxc5 hxg4 Kd2 Kf7 Ke3 g5 Kd4 a5 Ke5 e6 f4 g3 h4 g4 c6 a4 h5 a3 b6 g2 f6 g3 d6 a2 h6 Ra3 d7 Rc3 f5 Rd3 h7 Ne7 b7 Nd5 c7 Bh6 Be3 Rg8 h8R Bg7 Nd2 Nb6 Bf2 Nd5 Ngf3 g1B Nh4 g2 Rc1 a1Q Ne4 Qe8 d8Q Rh3 Qd2 Re3 Bd3 Re1 Bc2 Nb6 Q8d3 Qa8 Kd6 Kf8 f7 Qa5 Rh6 Bh8 Rf6 Qc3 Rh3 Kg7 f8N Qh5 Nh7 Qh6 Rf3 Re8 Rf8 Qh5 Rg8+ Kf7 f6 Rf8 Kc6 Ke8 f7+ Ke7 Rf6 Rd8 Qg3 Re8 Bd3 Qh6 Kb5 Kd7 f8B Rd8 Be7 Qh5+ Ka6 Kc6 Ka7 Kb5 Kb8 Ka4 Rgf8 Rd5 Rd8 Kb3 Bc2+ Ka2 Qdd3 Bd7 c8Q Qh6 Qc5 Nc8 Kc7 Nd6 Qce3 Bc8 Qed2 Qh5 Rdf8 Ra5 Kd8 Ra8 Re8 Rb8 Rg8 Nf7+ Ke8 Nd6+ Kf8 Bh2 Rg7 g1Q Kg8 Qh1 Rg5 Bg1 Rd5 Nb5 Rd8 Nd6 Bd1 Qh6 Bg4 Qf3 Bh3 Qfh5 Bf5 Qf8+
4RqnN/Q1NB1b2/4R3/Qqr1PpB1/P2pQ3/2R1K2N/q1qn4/B1b1k3 w - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 a5 c4 h5 gxh5 e5 f4 a4 fxe5 Ra5 b3 axb3 Ba3 b4 Bc1 Rb5 cxb5 Be7 Bf4 Bd6 Bc1 Bf8 Kd2 Ke7 a4 Ke6 e4 g5 h4 d5 b6 f5 c6 g4 h6 b2 c7 g3 b7 b3 h5 g2 h7 Ba3 h6 Qf8 Qf3 Nc6 b8Q Bd7 c8Q Nge7 Nc3 b1Q Rh3 b2 Qa6 Rg8 h8B Qc2+ Ke3 b1Q h7 Be8 Bb5 Bf7 Qba7 Qba2 Qa5 Nd4 Be8 Bb2 Nb5 Nb3 Bf6 Rg3 h8N Nd2 Bg7 Ng8 Nc7+ Ke7 e6 Kd6 e7 Ba3 Bh6 Ke5 Bd7 Rg6 Rb1 Rc6 Bg5 Rc5 Rb6 Bb2 Rg3 Ba3 Nh3 g1Q+ Qf2 Qg2 Qf3 Qf1 Qg4 Qb5 Rd6 Bb4 Bb2+ Bc3 Ba1 Bb2 Kf2 Kd4 e8R Kc4 Rde6 Bc1 Rc3+ Kd4 Rc4+ Kd3 e5 Qc3 Qf3+ Kc2 Qg2 Kd1 Qe4 Qcc2 Ke3 Ke1 Rc3 d4+
2Bb1Q1Q/K4QN1/rpbnR3/1N1r1B1P/1R1P1R1p/1b4n1/1k1q2p1/2N1B3 w - - 0 1 illegal: No possible last move, all moves rejected
B3bB2/1R3Nr1/bpkn4/QR3p1R/b1P2P2/2BpQ3/1N2r2Q/q1N2b1K w - - 0 1 illegal: No proof kernel
3K4/Bk2b3/1pb4Q/rRQ2pq1/3NQB2/1rP1p3/PR1Bnp2/N1R3Nq w - - 0 1 illegal: No possible last move, all moves rejected
1Nr4r/4QRR1/2r1qBQn/BP5B/P2b2b1/nN1K2nk/Nq5b/R2Qq3 w - - 0 1 illegal: No proof kernel
3B1k2/2q1q1R1/n2Q1NQB/1B3N2/1rqPr1n1/1qPK2nN/3R2bq/R1bQ4 w - - 0 1 illegal: No proof kernel
1Q1nR3/rQ4qN/b5nr/RBN5/1N3P2/q3bbqB/n3QPR1/1kn1B1K1 w - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 f5 e3 f4 exf4 Bh6 Bd3 Bg7 Bf1 Bf8 g4 Kd7 d4 Kd6 b4 h5 g5 e5 b6 c5 b7 a5 b5 c4 b6 a4 g6 a3 g7 a2 Nc3 h3 Rb1 a1Q Bg2 e4 Kf1 h4 Rb5 h2 Qg4 h3 Rb2 e3 Na2 c3 Rb5 c2 Ra5 Qc7 Qe2 Rh6 Nb4 Ne7 g8B Ra7 Nf3 Qa3 Bd2 c1N Rg1 h1B Ng5 h2 Be1 Ng6 Nh7 Nc6 b8Q Ba6 b7 Nd8 Bh3 Bf3 Rg2 Na2 Qa8 h1N b8Q Ng3+ Kg1 Bg7 Qab7 Bh8 Qd3 e2 Bf7 Bg7 Be8 Bh8 Bb5 Bf6 Bc3 e1Q+ Qf1 Qb1 Be1 Qbb3 Qe2 Be5 Q8a8 Qg7 Qbb8+ Ke7 d6+ Kf7 d5 Bd4 d7 Be3 Qab7 Ke7 Q8c8 Kd6 Qcb8+ Kc5 d6 Kd4 Qc6 Nf7 d8R Qd3 Re8 Nd8 d7 Qdc3 Qf1 Qcb3 Qcb7 Ne2+ Kh1 Nec1 Qe2 Qc3 Kg1 Qd3 Ba4 Kc4 Bc6 Kb3 Bb5 Ne6 d8N Qdc3 Nf7 Nd8 Ne5 Qd3 Nd7 Qdc3 Qd1+ Kb2 Nc5 Kb1 Qe2 Qcf6 Kh1 Qg5 Kg1 Qg3
2nkN3/r1N4n/2n2P1b/bb2q1QB/1Q3n1R/K3Rq1P/BN1BQrq1/5R2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 f4 g5 c4 e5 Kc2 a5 Kb3 d3 f6 d4 h6 g4 f7+ Kd7 h3 d2 f5 g3 b6 d3 h7 e4 f6 g2 c5 e3 c6+ Ke6 c7 Kd7 b7 e2 Nc3 e1N Nb5 Bb4 f8Q Nc6 b8Q Nf3 Qc5 Ra7 Be2 Ba6 Nd6 Nge7 Ne8 Rg8 h8R Bb5 Qg5 Nc8 Rh4 a4+ Ka2 Bf8 b4 Qe7 Ka3 Qe5 Qe1 d1Q Bd2 Rg7 Rb1 Re7 Rb3 Qc2 Bd1 Bg7 Ne2 g1N Nc1 Ne2 Rf1 Nf4 Qe2 Bh6 Qb6 Qcc5 Rc3 Qf2 Bb3 Qg2 Ba2 Nfd4 Qc5 Nde6 Qc4 Nf8 Qb3 Nd6 c8B+ Kd8 Bg4 Nc8 Bh5 Nh7 Qc4 Red7 Rb3 Rd5 Qc3 Rc5 Qb2 Rc2 Qc3 Ba6 b5 Rb2 b6 Bb5 b7 Rc2 Be1 d2 b8N d1Q Na6 Qdd5 Nac7 Qdf3 Qb4 Rb2 Qec4 Rf2 Qe2 Kd7 Rc3 Kd8 Kb2 a3+ Kb3 Qgg4 Nd3 Qfg2 Bd2 Q4f3 Bb1 a2 Nb2 a1B Ba2 Nf8 Re3 Nh7 Nd3 Bc3 Nb2 Ba4+ Ka3 Bb5+ Qa4 Ba5 Qe4 Nd5 Qb4 Nf4
1Bqb4/3kN3/2nPq2r/R1Q1Pb2/3q1KN1/Q3B1RQ/rN2B1q1/r3nb1R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 h4 f5 d4 a5 e4 c4 b4 c3 e5 c2 b6 a4 h6 a3 b5 a2 h5 Na6 h7 Ba3 d6 Nb4 h6 Nc6 d5 Qc7 b7 Qg7 b8N Qf7 b6 Qe6 b7 Nf6 Be3 c1Q Qc2 Ng4 Nc3 Nf2 Na4 Nd3 d7+ Kd8 Qc3 Be7 Nh3 Bf6 Qa3 g4+ Kg2 f3+ Kg3 f2 Nb2 Ne1 Be2 f1Q Nf2 Ra7 Kf4 g3 Rh3 g2 Rg3 Qh1 Ng4 g1Q Qc5 Qhg2 Qa3 Rg8 h8R Ra5 Rh7 Rg6 Rh8+ Kc7 h7 Bd8 Qc5 Rh6 Qa3 Nd4 Nc6 Ra8 Ne7 Nc6 Rf8 Ra6 h8Q Qc2 Rc1 a1R Qc5 R6a2 b8B+ Kb7 d6 Qc3 Kg5 f4 Rf7 f3 Kf4 f2 Qh7 Rg6 Qh3 f1B Rd1 Rh6 Rb1 Bc7 d8Q Bd7 Qg8 Bd8 Qg6 Qc2 Qd3 Qc1 Qda3 Qc3 Ng6 Kc8 Rc1 Qed5 Re7 Bf5 Ra7 Qe6 Ra5 Kd7 Ne7 Qcc4+ Qd4 Qa6 Qdc5 Qc8 Qc2 Nf3 Bd4 Q1f2 Qcc5 Qfg1 Bb5 B1d3 Ba6 Q1f2 Rh1 Bf1 Be2 Qfg1 Bf2 Ne1 Bd4 Qgd5 Bf2 Qgg2 Be3 Qd4+
B2nrr2/N1qKP1Q1/3BQ1rR/1QPq1NR1/4R3/3b2N1/n1qb1k2/4r1bB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 a5 e4+ Kc5 b4+ Kb6 h4 g5 c4 d5+ e6 a4 e5 a3 c5+ Kc7 b6+ Kc6 b7 d3 h6 g4 h7 f6 h5 g3 h6 g2 Rh4 d2 Qb3 d1R Ne2 g1B Bg2 a2 Nd2 Qc7 Nf3 d4 Re4 d3 Nh4 d2 Ng3 Re1 Bh1 d1Q Bf4 Na6 b8Q Qc2 Rc1 Bb7 e7 a1R Ke6 f5 Rd1 Bg7 Rd5 Bf6 Qc8 Bg5 Qb1 Kb5 e8B+ Bc6 Bh5 Ne7 B5f3 Rf8 h8R Rb8 Qd7 Rbe8 h7 Ra3 Qd6 Bb7 Qb2 Nc6+ Qe7 Rd3 Bfg2 Rd4 Qb1 Kc4 b5 Kd3 b6 Ba8 b7 Nab4 b8N Na2 Qb2 Bb7 Qb6 Ba6 Qb7 Qb6 Kd7 Nd8 e6 Qa5 Bd6 f4 Qc6 f3 Nhf5 f2 Qb5+ Kd2 Rde5 f1Q Nc6 Qfc4 Na7 Qd5 Qf6 Kd1 e7 Bd2 Qe6 Ra4 Nd4 Ra3 Rg5 Raf3 Ndf5 Rf4 Rhg8 Rg4 h8Q Qb6 Rh5 Rg6 Rh6 Qa5 Qg7 Qb6 Qb4 Bd3 Qbb2 Re3 Qb5 Ke1 Qc3 Kf2 Rg7 Rgf6 Rg5 Rg6 Qg7 Re1 Reh4 Qe5 Ba8 Qd5 Re4 Qc7+
2n2RK1/3b2Q1/1R2Q2r/BPb1P1b1/3N4/BN1Rn3/1rQ4b/r1NBqrkr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 h4 g5 d4+ Kc4 b4 f5 h6 c5 h7 f3 b6 a4 b5 f4 e4+ Kb4 h5 g4 b7 f2 h6 f3 d6 a3 d7 c4 Ke6 c3 Kf7 a2 d5 Kc5 e5 g3 d6 c2 Rh3 g2 Ne2 g1B Nd2 Na6 b8Q Bh2 Ba3+ Nb4 Nc1 Kd4 Ndb3+ Ke3 Be2 Qh4 d8B f1R d7 Kf2 Qbd6 Ne7 Ba5 Nbd5 d8N Bd7 Nc6 Kg1 Qe6 f2 Ncd4 Nc8 Rd3 Bc5 Qd2 Ne3 Bd1 Ra6 Kg7 Rd8 h8Q Rg8+ Kh7 Rg2 Qg7 Re1 Qc3 f1R Kg8 Rd6 h7 Ra6 Rb1 a1R h8R Rc6 Rh6 Qf2 Na2 c1B Rb2 Qg3 Rf2 Rd6 Rf8 Rb2 Qc2 Bd2 Bg4 Reb1 Nac1 Qe1 Qef7 Rg6 Qe6 Rgf6 Rh4 Rh6 Bd1+ Ng2 Rhh3 Bg5 Rhf3 Ne3 R3f7 Be8 Rb7 Bd7 Rb6 Qe2 Bc3 Re1 Na2 Kg2 Ba5 Qd2 Bg4 Rh1 Be2 Rbf1 Bd1 Kg1 Nac1 Qe1
1N1r2B1/1Rnb1Q2/2Q1R1NB/1K2b1n1/2R4N/1Q2nPbk/Pr1r4/b3Bnq1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 d4+ Kh4 h3 g5 f6 c5 f7 e5 h6 b3 h7 e4 d6 b2 d7 e3 d5 e2 d6 e1B Ne2 g4 Bh6 g3 Rg1 g2 Qb3 Ne7 Nd4 Bg7 f8Q Nf5 Nc6 Na6 Kb5 c4 Nd2 b1R Nb8 c3 Bc4 c2 Qf7 Qg8 d8R c1B d7 Bcb2 Re8 Bge5 Re6 Ne3 d8Q+ Qg5 Qdf6 Rd8 Qf3 Bd7+ Qc6 b6 Rh1 g1N h8N Nf3 Bd5 Rd1 Rc1 Ba1 Rc4+ Qg4 Rf1 Ng5 Rg1 Ra7 Rf1 Rb7 Ng6+ Kh5 h4 Qg1 Nf3 Rd2 Nf4+ Kg4 Ng6+ Kh3 h5 Rb2 Nfh4 Rd2 f3 B1g3 Rb1 Nc7+ Ka4 b5+ Kb4 Na6+ Ka5 b4 Ka4 Rc7 Kb5 Ra7 Bf8 Ra8 h6 Rb2 h7 Nc7+ Kb6 Rd2 h8B Ra7 Bhg7 Rb7+ Ka5 Rb6 Bh6 Rb7 Bc5 Rb6 Bd4 Rb7 Bc3 Rb6 Qd1 b3 Bb4 b2 Qb3 Rd4 Be1 Rd2 Rbc1 b1N Rb4 Rb2 Rcc4 Nd2 Rb5 Ra6+ Kb4 Ndf1 Rb7 Na8 Kb5 Ra3 Qb4 Rd3 Qb3 Nc7+ Kb4 Ne8 Qf5+ Kh2 Rf6 Ng7 Kb5 Ne8 Bg8 Rdd2 Qf4 Kh3 Re6 Rg2 Qf6 Rgd2 Qf7 Nc7+
1kq5/1B2B2b/1rRK1QnN/2n2n2/1RNQ2NP/1r1Pr2B/q2n2r1/R1Q1b3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 g5 Ke4 f5+ Ke5 a5 e4 c5 h4 Kc7 b4 a4 h6 f3 d3 a3 h7 c4 Bh3 a2 Qe1 c3 Ba3 c2 Nd2 c1R Nc4 f2 Nf3 f1N Nh2 f4 Ng4 Na6 b6+ Kb8 b5 f3 d6 f2 d7 Ne7 b7 Ng3 Kd6 f1N e5 Rc3 e6 Rb3 Qc1 Ng6+ e7 Nd2 Rf1 Rg8 h8N Nc5 Nf7 Rg7 Rf6 Ra6+ Kd5 Rh7 e8B Rb6 Rc6 Nf5 Nfh6 Re7 Bf7 Qc7 d8Q Re3 Qf6 Bd6 Qd4 Bg3 Bg8 Be1 Bf7 Nd7 Be7 Nc5 Bg8 Bd7 Be6 Qc8 Bf7 Ng3 Kd6 Bf5 Bd5 Be4 Rb1 a1Q Qf6 Ka7 b8R Qa2 Ra8+ Kb7 Ra4 Kb8 Ra1 Nh5 Rb4 Ng7 Nh2 g4 Qd4 g3 N2g4 Rb7 b6 g2 Qf6 g1R Qd4 Ra7 b7 Rg2 Qf6 Ra6 Qd4 Ka7 Qf6 Rb6 b8Q+ Ka6 Qc7 Bf5 Qd8 Ka7 Be4 Kb8 Qd4 Be6 Qf8 Bg8 Qff6 Bh7 Bf5 Qf8 Bc8 Qe8 Ba6 Qc8 Bb7 Nf5+
br2kq2/4q1Q1/bq6/2RN2BR/b1Pb1nB1/K3nB2/1N2P1q1/NR1QrQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 b4 d5 c4 f5 Kc2 g5 Kb2 g4 h4 d3 b6 d2 b5 f4 b7 a4 b6 g3 h6 g2 h7 f3 h5 f2 h6 d4 e6 d3 e7 Nf6 Nh3 g1Q Na3 Qg5 Bg2 f1B Nf2 Nh5 Bf3 Na6 b8N Nb4 b7 Nc2 Rb1 Bg2 Nc6 Ne3 b8R Nf4 Nb4 Qb6 Nc2 Bg7+ Ka3 Bd4 Rh5 Qgc5 Qf1 d1B Na1 d2 Nd3 Bb3 Rb7 d1Q Nb2 Rb8 Rc7 Ba6 Bd2 Qf5 Nd5 Qf8 Rc5 Qc2 Qd1 Qe4 Bc1 Rg8 h8Q Bh1 h7 Rg1 Bg4 Re1 Qf6 Qg2 h8Q Bc2 Qhg7 Bb3 Bd2 Bc2 Ka2 a3 Qf5 Ba4 Bc1 Ng6 Qf1 Nf4 Bf3 B4b5 Kb3 a2 Kb4 Ba4+ Ka3 Kd7 e8B+ Kd8 Bc6 Qe7 Bb7 Ke8 Bc8 Qf8 Qb3 Qe7 Bcg4 Qf8 Nc2 a1Q+ Qa2 Rd1 Nd3 Qg1 Ne7 Nfd5 Rb3 Nf5 Bg5 Nf4 Bb7 Qc3 Na1 Re1 Qb1 Qd2 Qd1 Qde3 Rb1 Be4 Bd5 Qg2 Ba8 Bec6 Bb7 Qe6 Nb2 Ne3 Ba8 Bcb5 Baf3 Bc6 Nd5 Qee7 Qh8 Bcb7 Qg7 Ba8
2Q5/2rb4/Pn2q3/q1Bb1rRQ/bNRq4/KP4B1/2Bn2RN/2q1QNbk w - - 0 1 illegal: No proof kernel
R2rqkBq/NP1Q4/2n4r/2N3qr/q1BB1P2/2br1b2/R5NR/nK1Q1Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 c5 d4 h5 Kd2 a5 Kc2 e5 b4 h3 d6 e4 f6 h4 g5 c4 b6 c3 d5 e3 b5 a4 g6 h2 g7 a3 b7 a2 b6 h3 Bc4 e2 Nf3 e1R Nh4 Na6 b8N Nc5 b7 Nb3 Be3 Bg4 Nd2 Rh6 Nc6 Bf3 Ne4 Ne7 g8B Bg7 d7+ Kf8 f7 Qe8 d6 Rd8 Na7 Nc6 Bd4 Re3 Nc5 Rd3 Ng2 Rh5 Rb1 a1Q Rb2 Qa4 Kb1 Na1 Ra2 Rc8 d8Q c2+ Kc1 Rb8 d7 Ra8 Qf6 Rd8 Qe6 Bf6 Qee2 Rh6 Qef1 Be5 Be3 Bc3 Bd4 Ra8 d8Q Rc8 Rg1 h1Q Qd7 Qh2 Rh1 Rd8 Qc7 Qhe5 Qd7 Qh8 Rh2 Ba5 Kb2 Rh5 Ra3 c1Q+ Ka2 Qg5 Kb1 Bc3 Ra2 Be4 f4 Bf3 Qc8 Ke7 f8R Rh6 Rf6 Rh5 Rd6 Kf8 Rd7 Rh6 Rc7 Rh5 Qd7 Rh6 Rc8 Rh5 Rh1 h2 Ra8 Rh4 Rg1 h1R Qc8 Rg4 Qd7 Rh6 Rh1 Rgh4 Rh2 R4h5
7r/1NQB3N/1PBQ1KbR/B1q3pP/2R2R1b/2n1k3/1qqN4/rnbQ3n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 h4 f5 e4 c6 h6 g6 h5 a4 d6 a3 h7 a2 d7 f3 b6 f2 b7 f4 Bh3 f1N Nf3 Nf6 Ng5 Qa5 d8N f3 Bd7 f2 Rh4 Be7 Rf4 Na6 b8Q Nb4 Qc7 Nc2 b4+ Kc4+ b5 Kd3 Ba3 c5 b6 Nd5 Nb7 c4 Bb4 Qc5 Ba5 c3 Ke6 Ra6 e5 Ng3 Kf7 f1Q e6 Bf6 e7 Qg2 e8B Na3 Bc6 c2 Bed7 c1B Rc4 Rd8 h8R Nc3 Rh6 Nh1 Nh7 Bh4 Rf4 g5 Kf6 Ra7 Rc4 Rh8 Rf4 Qe4 Qd6+ Kc4 d4 Qc2 Nd2+ Kd3 d5 Ke3 Rb1 a1Q Rbb4 Qab2 Rbc4 Nab1 Qc7 Qd3 d6 Ra8 Bf5 Ra7 d7 Qdc2 d8Q Ra6 Bh3 Bf5 Qdd6 Bg6 Bhd7 Raa8 Bb4 Ra3 Ba5 Ra1
1b1r1bRN/N7/qP2rRqn/1qpk1BPK/1Qr1b1Q1/8/1nB1RN2/1Q4B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 b4 a5 d4 c5 g4 f5 e4 h5 g6 a4 b6 h4 g7 a3 b7 h3 g5 a2 e5+ Kc7 d6+ Kc6 d7 h2 e6 Ra5 e7 Rb5 e8B Kd6 d5 Qb6 d8N Nd7 b8Q+ Qc7 Be3 Nb6 Bg6 Bd7 Na3 Ke5 d6 Nc4 Bh3 Nb2 Qb1 Qb6 Nf7+ Kd5 Bf2 Bc8 d7 Nh6 g8R Bb7 d8Q+ Qd6 Qa5 Rb6 b5 Qe6 Bh7 Qg6 Qc8 Re6 b6 Ba8 Nb5 Bb7 Kg2 f3+ Kg3 f4+ Kh4 Bc6 Bd4 f2 Bf5 f1Q Nh3 f3 Qb4 f2 Na7 Qa6 Re1 f1Q Bg1 Qfb5 Re2 h1R Bc2 Rh2 Bf5 Rg2 Nf2 Rg3 Bc2 Rc3 Bf5 Re8 Bc2 Rc4+ Qg4 Re6 Bf5 Bb7 Bc2 Qf6 Bhf5 Qg6 Q1e1 Bc6 Rb1 a1B Qc1 Rh7 Nh8 Rd7 Qce1 Rd8 Qc1 Na4 Qcb2 Bb7 Rf1 Bc6 Qc1 Be5 Qa1 Bb8 Qab1 Qh7 Kh5 Nb2 Rd2+ Ke5 Re2+ Be4 Rd1 Qg7 Rd7 Qh7 Rf7 Kd5 Rf6 Qg6+
NqQn1Nk1/2n2bPN/1R1rp2b/3B1PQ1/3qB1bq/2r1Q3/1R1K4/r1B1R3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kf7 b4 a5 g4 c5 f4 h5 d6 a4 d7 h4 d5 h3 g6+ Kg7 d6 h2 f5 a3 b6 c4 b7 c3 g5 c2 b5 a2 b6 e3 Na3 e2 Rb1 a1R Nc4 Rh7 Nf3 Qe8 d8Q R8a5 d7 Rh6 Rb2 Rh5 Kd2 Nc6 b8Q Rc5 b7 Rh8 Nb6 Nf6 Bg2 Rc3 Re1 h1B Na8 Kg8 g7 Nd5 Qg3 Rh6 b8R Ba6 Qc8 Rd6 d8N Bc4 Ne6 Nd8 R8b6 Qa4 Qf4 Nc7+ Qd4 Bd5 Qe3 Qa7 Qe4 Qb8 Qe3 Kh7 g8B+ Kh8 g6 Bh6 Neg5 Bf7+ Nd4 Kg7 Bd5 Bf3 Nh7 Bg4 Be4 Be8 Bc4 Bf7 Bcd5 Kg8 g7 e6 Nf3 Ra7 Nf8 Ra1 Rg1 Rc4 Ng5 e1Q+ Kd3 Qg3 Re1 Qh4 Ngh7 Rcc6 Qg5 Rc4 Qe2 Rcc6 Bf4 c1Q Qe3 Qc4+ Kd2 Qd4+ Qd3 Qc4 Ke3 Bh3 Ke2 Qb4 Bc1 Rc3 Kd2 Bg4 Qde3 Qd4+
B1n3bQ/3B1P1N/2N5/R1N1bn2/K3Q2P/qrB3k1/Q2p2qq/2rR1Rnb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 a5 h4 d5 h6 g5 h7 d3 c5 a4+ Kb4 g4 b6 d2 b7 Kf4 c6 a3 c7 g3 f6 g2 f7 d4 Qe1 a2 Nf3 g1N Bg2 d3 Ng5 Qd5 Nc3 Bg7 Na4 e5 Nc5 Be6 c8B e4 Bd7 Ne7 f8R+ Nf5 f3 Rg8 h8Q e3 Nh7 d1B Bd2 Ra3 Bc3 Rb3+ Ka4 Nc6 b8Q+ Be5 Qa7 d2 Ra8 Bc2 Rd1 Rc8 Qe2 Kg3 f4 Be4 Qc4 Nh6 f5 e2 f6 Bg8 f7 e1Q Qb4 Bf3 Qe4 Qf2 Qa6 Ne7 Rf1 Rbb8 b4 Nhf5 b5 Qb7 Qe6 a1Q+ Qa2 Qb2 b6 Rc6 Ra6 Nc8 Ra5 Qc7 b7 Qd6 Bh3 Qh2 Rd1 Qg6 Bf1 Qg4 Bc4 Qgh3 Bd5 Q3g2 Rf1 Rb6 Rd1 Rb3 B5c6 Ra8 b8N Ra6 Ba8 Rc6 Nd3 Rc5 Nc6 Rc4+ Bb4 Rc1 Bc3 Nh3 Rhf1 Ng1 Ncb4 Qe2 Nc6 Bh1 Nc5 Qef2 Ne7 Qfg2 Nc6 Qa3+
1R1NbQN1/RQ1N1Pn1/nBQrq3/3p4/3qn1r1/b1P5/1BR1Kr2/1k1B2q1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 Kf6 b4 g5 b6 d5 c3 a5 b7 e5 b5 e4 b6 d3 h6 d2+ Ke2 e3 h7 a4 h5 a3 h6 g4 Bb2 a2 Rh2 g3 Nf3 g2 Ne5 g1Q Qa4 d1N Qc6+ Bd6 Nd2 Na6 b8R Ne7 b7 Rf8 h8N Bd7 h7 Qb6 Nhf7 Qd4 Nd8 Be8 Bh3 Rf7 Bg4 Nf2 h8B+ Rg7 Rg2 Ne4 Rf2 Ng6 Bf3 Nf8 Bh5 Ne6 Nd7+ Ke7 Bf3 Rg4 Be5 Ba3 Bc7 Ng7 Bb6 Nd6 Ne4 Ra7 Nec5 Ne4 Nf6 Ra8 Ncd7 Ra7 Qa4 Kd6 Ng8 Ra8 f6 Ra7 Raf1 a1R f7 Ra2 f5 Ra8 f6 Ra7 Nf8 Ke5 Nd7+ Kf5 f8Q Kf4 Ke1 e2 f7 Ke3 Qc6 Kd3 Rh2 Qg3+ Rff2 Kc2 Rh8 Kb1 Ra8 Bd6 b8Q Ba3 Qbc7 Rb7 Ra7 Qge5 Qc8 Qe6 Rfh2 Rc7 Q6b7 Rc6 Qcc7 Rd6 Qcc6 Qc4 Rf2 Ng5 Kd2 Ne4+ Ke3 e1Q+ Be2 Qh1 Bd1 Qb4 Rc2 Qg1+ Ke2 Qbd4 Kf3 Ra1 Ngf6 Nh5 Ke2 Qf5 Qg8 Ka2 Ne6 Rc1 Qg7 Kb1 Rf8 Qg6 Ng8 Qgf6 Ndc5 Bd7 Rb8 Be8 Nd8 Qf5 Qf8 Ng7 Nd7 Qff6 Rd2 Qg6 Ba4 Rf1 Bd1 Qe6 Rc2 Rf2#
B2br2b/1rQrN2P/b3n2P/r6k/n5q1/2p2QK1/RRQ1rBRN/4N1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 f5 h4 Kf7 b4 a5 e4 g5 d4 c5 b6 g4 h6 Kg6 e5 a4 d6 f3 d5 c4 b7 c3 b5 a3 b6 f4 h7 a2 e6 Ra6 h5+ Kh6 d7 Ba3 e7 Ra7 e8Q Be7 d6 Nf6 Qf7 Qg8 d8B Nd5 d7 Na6 b8R Ndc7 b7 Nc5 Nd2 Na4 Bg2 Ne6 Bb6 Bd8 Rh2 Kg5 h6 g3+ Ke1 Ra5 Nf1 f2+ Ke2 Qg7 Kf3 Re8 Qc2 Ra7 Bh1 g2 Bce3 Ra5 Bbd4 Rd5 Ba7 Rd3 Qf8 Kg6 Kg4 f3 Kg3 Qg8 Ne2 g1B Rg2 Qg7 Nh2 f1R Bf2 Re1 Nc1 Re2 Qf7+ Kg5 Bad4 Rdd2 Nd3 Rd1 Ne1 Qg6 Rb1 a1R Rb2 Qe4 Qf4+ Kh5 Ra8 Rdb1 b8Q Ba6 Qbc7 Qf5 Bfe3 f2 Bc5 f1R Bf2 Bf6 d8N Bh8 Qe3 Rd1 Bb6 Rd7 Nc6 Ra2 Ne7 Qe4 Nd3 Rb1 Ne1 Ra3 Ra2 Rb5 Rb8 Ra5 Qef4 Rb3 Bbd4 Rb7 Bc5 Ra7 Rbb2 Rb7 Qf3+ Kg5 Bfe3+ Nf4 Rf2 Qg6 Qcc6 Rb4 Qfe4 Qh5 Bf3 Qg6 Rg2 Qg8 Bed4 Ne6 Qed3 Qg6 Bd5 Qe4 Qf3 Rbb5 Qd6 Rb3 Ba8 Rbb7 Ba7 Qf5 Bdb6 Bc5 Qe5 Bd6 Bg1 Bc7 Bad4 Bd8 Qc7 Qe4 Bdf2 Qf5 Qfd3 Kh5 Qf3+ Qg4+
n1r1R2b/2bP1q1p/Q7/2n1Q3/1b1bB1P1/1kB2RKb/1N3rrB/1Q2N1RN w - - 0 1 illegal: No possible last move
1R1r1r2/K1Bn2pk/rP2Qn1b/1NR3qB/NN3RBQ/1br4r/1qP1Q3/8 w - - 0 1 illegal: No possible last move, all moves rejected
QQ6/Br5R/1nb1Qq2/2kr2bq/qN1N4/qp1R4/NP1K1BP1/RB2nb2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 b4 Ra3 Qd7 Ra1 Qb5 axb5 Kd7 Na3 Ke7 Nb1 Ke8 d4 Kd7 e4 Kd6 g6 a5 b6 f5 g7 h5 b7 c5 Qf3 c4 Qg4 b3 Na3 a4 Qe2 h4 Qd1 h3 Ra2 h2 Be3 f3 Bh6 f2+ Ke2 c3 Be3 c2 Nb1 c1Q Qe1 f4 Ra1 a3 Nf3 a2 Nc3 Nf6 g8Q Nbd7 b8N Nb6 Na6 Rh5 Nb4 Qb1 Kd2 Ng4 Bd3 f1Q Bf2 Bd7 Bc2 Rb8 e5+ Ke7 e6 Kd6 e7 Ne5 e8R Rb7 Rd8 Nd3 Qe3 Be7 Qee6+ Kc7 Qh8 Bc6 Rd6 Rg5 Qa8 Ne1 Bg6 Qe4 Rd8 Na4 d6+ Kb6 d7 Rd5 Qb8 Bh4 Bf5 Qe5 Bb1 Qf6 Qa8 Qb5 Qb8 Rh5 d5+ Qc5 d6 Rd5+ Nd4 f3 Re8 Qa5 d8Q+ Kc5 d7 Nb6 Qdc8 Qa6 d8B Qa3 Bc7 Qa4 Rd8 Qa3 Bcg3 Qa4 Be3 f2 Qa8 f1B Qcb8 Qa3 Bgf2 Qa4 Rg1 h1Q Rd7 Qh2 Rh1 Qhe5 Rh3 Qh5 Rh7 Nd3 Bf4 Ne1 Rd3 Qa3 B4e3 Qa4 Nf3+ Kc4 Bc5 Nc8 Ba7 Nb6 Nd4 Kc5 Bc2 Qff7 Rc1 a1Q Rb1 Q1a2 Ra1 Qf6 Bb1 Q2a3 Nca2 Bg5+
2BB2r1/1b1qRQ1r/2Rb1qnk/3NBn2/1NpP1NQ1/5Pn1/1q1q1R1K/7Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kg7 d4 c5 g5 a5 f3 e5 Kf2 h5 Kg2 h3+ Kh2 h4 b6 a4 b5 e4 d6 a3 d7 a2 f6+ Kh7 f7 e3 g6+ Kh6 g7 c4 b7 Nf6 g8Q Rh7 b6 Qe7 d8B Qd7 Qg4 Nh5 Ne2 Ng3 Nf4 e2 Nc3 e1Q Ncd5 Nc6 b8R Qee6 b7 Ne7 Bg2 Qf6 Re1 Ng6 Re7 Nf5 Qh1 Qe8 Bd2 Qd7 Rf1 a1Q Rf2 Qb2 B2a5 Qd2 Bac7 Qb2 Be5 Qd2 Re6 Bd6 Re7 Qb2 Nd3 Qd2 f8N Qb2 Ne6 Qd2 Nef4 Qb2 Kg1 Qd2 N3b4 h2+ Kf1 Qb2 Bh3 Qd2 Kg2 Qb2 Qg1 h1N Kh2 Nhg3 Qh1 Qd2 Bf1 h3 Bd3 Ra4 Ra8 Ra2 b8Q Bb7 Ra6 Ra1 Rc6 Ra8 Qa7 Qb2 Ba5 Rg8 Bd8 Qd2 Kg1 h2+ Kg2 Ng7 Bf5 Qb2 Be6 N7f5 Kh3 Qc7 Bc8 Qd7 Qg1 h1Q+ Qh2 Qhb1 Qh1 Qd2 Kh2 Ba8 Qb7 Qbb2 Qc7 Qde6 Qd7 Bb7 Qe8 Qd7 Qf8+ Rhg7 Qf7 Rh7
3N1r1q/nqn3k1/RQ2b2R/1b2b3/BPP2K2/q4NBp/1N1RqQ2/2Q2rB1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 a5 b4 h5 g4 e5 g6+ Kg7 g5 d5 b6 a4 b7 d3 Ke3 a3 Nf3 d2 Bb5 e4 c4 h4 Ba4 a2 Nc3 Nc6 b8B Nge7 f6+ Kg8 f5 d4+ Kf4 d3 f7+ Kg7 Qg1 d1B Qb6 Na7 Be3 d2 Bg1 e3 Rh3 Bc2 Nd1 e2 Nb2 e1Q Rh2 d1Q Rd2 h3 Bd6 Rh6 f6+ Kh8 Bc7 Bg7 f8N Qee2 f7 Bf6 Ne6 Qc1 Bb8 Qd7 Nd8 Qb7 g7+ Kh7 f8R Be6 Rh8+ Kg6 Rh7 Be4 Bd6 Bc6 Bb8 Bb5 g8Q+ Bg7 Qf8 Bf6 Rh8 Rh7 Bc7 Rf7 Bb8 Qc3 Rh5 Qa3 Rh8 Ng8 Qfc5 Ne7 Rh6+ Kg7 g6 Rf8 Qf2 Nd5+ Kg3 Kg8 g7 Nc7 Kf4 Qf1 Re1 a1Q Re5 Qe2 Rg5 Be8 Ra5 Bb5 Ra6 Qb1 Qe1 Qh7 Qc1 Qh8 Nc6 Kf7 g8Q+ Ke8 Qg4 Kf7 Qh4 Kg7 Nd8 Ne8 Be5 Nc7 Qhf2 Rf7 Nc6 Raf8 Nd8 Rd7 Rc2 Rd1 Rd2 Rf1 Kg3 Bd5 Kg4 Bf7 Bg3 Be6+ Kf4 Be5+
Bb6/R1KB3N/r1R2q2/Pq1N3n/1Q1PQQb1/Bp1RNb2/2br4/n5kn w - - 0 1 illegal: No possible last move
NB2bbr1/4rR1N/4P1Q1/R1KBR1P1/B5qb/b4n2/1nQr1kpq/1Q3N2 w - - 0 1 illegal: No possible last move
4q3/R2n4/b1PB2p1/RbN1q1k1/q1n2b1R/PbQBN3/1r1r1K1B/QQ5N w - - 0 1 illegal: No possible last move, all moves rejected
3QB3/3qbb1R/kP1N3Q/1R2p1bB/2BKPq1q/1N3Q2/1n1N1r1n/1b2r1R1 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 Kf2 Kd7 Ke3 c5 h4 Kc7 d4 Kb6 d6 a5 h5 f5 b4 a4 d5 g4 d7 a3 d6 f4+ Ke4 f3 h6 c4 h7 f2 e3 c3 Nd2 g3 Be2 f1B Ra2 c2 Ngf3 c1Q Bc4 g2 Rg1 Bd3+ Kd4 Nh6 g8B Ng4 e4 Nh2 g7 Na6 Bgf7 Bb1 g8B Nc5 Be8 Na4 Bgf7 Nb2 Nb3 Qf4 Nfd2 e6 Qe2 Qdh4 d8N Be7 d7 Rf8 h8Q Ba6 Ra1 a2 Qh6 Bb7 Qf1 Bc6 Nb7 Rb8 Rh1 g1B+ Qf2 Ra8 Bh5 Ra5 d8Q+ Ka7 Beg6 Be8 Nd6 Bf7 Qe3 Bf2 Rg1 Bg3 Qf3 Ra6 Nf5 Kb7 b6 Bg5 b5 Ra3 Nc1 Re3 Ncb3 Re1 Rh1 Qb8 Rg1 Bd6 Rh1 Bde7 Nd6+ Ka8 b7+ Ka7 Rg1 Qc8 b8R Qd7 Bd5 Qf4 b6+ Ka6 Rb7 Bc2 Rc1 Bb1 Rc5 a1Q Rb5 Qa3 Bc4 Qc5+ Kc3 Qf2 Rc7 Q2h4 Kd4 Bg8 Be8 Rf5 Qe2 Bf7 Qf1 Qfg4 Qe2 Rf2 Qf3 Qf4 Na1 Bf8 Rg3 Qc6 Qhf6 Bg8 Rh7 Qd7 Qh6 Bf7 Nab3 Bfe7 Rg1 e5+
2nR3n/Q1KN2PN/Qrr3k1/1R1r4/1p2N1Pq/4Bb2/B2q2Rb/qB2Q1r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 b4 d6 b2 Kd5 c4 a5 h4 a6 c3 a7 h3 g6+ Kf6 d7 c2 g7 h2 Nc3 b1Q Qe1 e4 Nf3 e3 Ne5 e2 Rg1 h1R Ra5 R8h6 Be3 c1Q Ne4+ Ke7 Rb5 Rh8 Rg2 Qb6 d8R Qd2 Nd7 Kf7 f6 Nc6 f5 Nge7+ Kd6 R8h5 d5 Rb8 a8B Qa1 Bb7 Qba7 Kc7 Rg1 d6 Q7d4 Ba6 Na7 Bb7 Qe5 Bd5+ Qe6 Bc4 Bb7 Ba2 Ng6 Bb1 Nh8 Ba2 Kg8 f7+ Kh7 f6 Rd5 Bb1 Be7 f8Q Nc8 f7 Qh6 Qe8 Bf8 Qe6 Qh4 Qf6 Ba8 Qd4 Be7 Qa7 Rb6 Ba2 Bg5 f8N+ Kh6 Nh7 Bf4 Qc1 e1R Bd3 Rd1 Bdb1 Bb7 Qca3 Bc6 Q3a6 Kg6 Q7b7 Qd3 Rf8 Rh5 Nec5 Be4 Qba7 Rh1 Ndf6 Re5 d7 Rhg1 d8Q Bf3 Nfe4 Bh2 Qd5 Qdc3 Rd8 Qc1 Qc4 Rdd6 Qe2 Red5 Qe1 Qd2 Nd7 Rdc6#
3rRR1r/Q5Pq/1NQp2b1/q2r1NnB/NB4Q1/5rbR/1K3B1P/1b1k1n2 w - - 0 1 illegal: No proof kernel
n3kr2/1K1bP3/5r2/1nQ1q1Q1/2p1BNRN/R1b5/PB1Nr1Q1/1qr1BqR1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 c5 Ke3 f5 d4 g5 h4 b5 e6 g4 d6 b3 h6 g3 h5 g2 d5 b2 h7 f4+ Ke4 f3 d7+ Ke7 h6 f2 d6+ Kf6 Kd5 b4 e4 c4 e5+ Kg6 e7 Kf7 e8R b3 e6+ Kg6 Rh3 Bg7 Nd2 b1Q Ngf3 g1R Bb2 Bd4 Qe2 Ra3 Bg2 f1R Nh4+ Kf6 Be4 Qd1 Qg2 Na6 Kc6 Qe7 d8Q Nc7 d7 Na8 Qc7 Bc3 d8Q Bd7+ Kb7 Re1 Qcc8 Ra6 Qc5 Re2 Qda5 Qd6 e7 Kf7 Qab5 Nf6 Rg8 Qh2 Rg4 Rf8 h8N+ Ke8 h7 Nd5 N8g6 Ndc7 h8B Qf1 Nf4 Raf6 Qg5 Qg3 Qbc5 Nb5 Rb1 Rc6 Bd4 Rcf6 Bf2 Qe3 Rhg3 Qd4 Be1 Qe5 Ba3 b2 Rd1 b1Q Bb2 Bd4 Ra3 Bc3 Bg3 Qf2 Rf1 Rh1 Rg1 Qff1 Be1 Rh2 Nb3 Rc2 Nd2 Rc1 Qh3 Rf2 Qg2 Re2
4b2R/3QPN1q/Rpq1bn2/2n2NPN/Q1Q1nbkr/8/BB2R1K1/nr3B2 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 a4 h5 d4 c5 e4 f5 g4 c4 g6 f4 d6+ Ke6 d7 c3 a5 b3 a6 h4 g7 h3 a7 b6 d5+ Ke7 e6 Kf6 d6 Kg5 e7 c2 e8R b2 e5 h2 e6 Kh4 g5 f3 Na3 b1N Ne2 Qf6 d8N Kg4 d7 Nc3 Bb2 c1N Qd3 Na6 Nf7 Nb3 d8Q Rh4 Q8d7 Bd6 Nb5 Nac5 Ng3 Bf4 Ra6 Na1 Nh5 Qh6 Qe2 Qh7 Qc4 Nf6 g8B N3e4+ Ke1 Rh3 Nbd6 Rh4 Nf5 f2+ Ke2 Bb7 e7 Bc6 Rd8 Rc8 a8Q Bd5 Qac6 Be6 Q6a4 Rc6 Rb8 Rd6 Rd8 Rd1 Rda8 Rb1 Rg1+ Bg3 Rg2 h1Q Rf8 Kh3 Kf3 Bf4 Bd3 Qc1 Rb8 f1B Re2 Nd2+ Kf2 Kg4 Rc8 Bg2 Rd8 Ba8 Re8 Nde4+ Kg2 Qc3 Qcb4 Be5 Qdd4 Nb7 Rc2 Qe1 Nd8 Bc4 Bf1 Qc1 Re2 Bf4 Qbd2 Bb5 Ba2 Bc4 Rg8 Be6 Rh8 Qc8 Q2d3 Nbc5 Q3c4 Bc6 Nf7 Be8 Qdd7 Qc6
BR1bQR2/N1NQp2n/Qq1q1R1P/4rP1q/B6K/1r2q3/N2B1n2/1k3bb1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 b4 Kf6 c4 Ke5 f4+ Ke4 Kf2 g5 Kg3 d5 c5 a5 b6 d3 f6 d4 h6 d2 c6 d3 b5 g4 c7 a4 b7 a3 f5 a2 h7 Bh6 h5 Ra5 f7 Be6 f8R Nd7 c8B Bf4+ Kh4 g3 b8Q g2 b6 Bc7 b7 Ke3 h6 Ndf6 Na3 Bc4 Ne2 g1B Bd7 Ne4 Qc8 Re5 b8N Nf2 Na6 Nf6 Ba4 Rg8 h8Q Nh7 Bh3 Rg3 Nc3 Qd4+ Bg4 Bd8 Nab5 Qb6 Na7 Bb5 Rb1 a1Q Na2 Qc3 Nc7 Kd4 Qf1 d1Q Bf3 d2 Ba8 Qe3 Qa6 Qdf3 Qd1 Kd3 Rf6 Qd5 Qe8 Qdd6 Rh3 Rf3 Rg3 Bc4 Rg8 Bb5 Qe1 d1Q Rgf8 Qde2 Rb3+ Kc2 Bd2 Qd1 Qe2 Rg3 Q2h5 Bf1 Qd7 Qdf3 Qhe8 Qfe2 Rd3+ Kb1 Rd5 Qec5 Rd4 Rb3 Rb4 Qce3 Rb5 Qbc6 Rb7 Qcb6 Rb8 Qh5+
2n1Q2N/QNbPR3/PrQn4/3pRq2/2nrq3/5bR1/K2n1k1B/NB1Bb3 w - - 0 1 illegal: No proof kernel
rNr1Q1b1/1RPQ4/R1Nb1pBn/R4n2/1b1q2Qb/q1kP3K/B6B/3r2N1 w - - 0 1 illegal: No proof kernel
rrQnb1K1/1qP2N2/4pQRB/4Pb2/2k1BRqR/b3b1B1/N1q2n2/Q1N5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 c5 a4 Rh7 axb5 Rh8 d4 cxd4 Kf2 f5 Kf3 Kf7 Kf4 Ke6 h4 Kd5 e4+ Kc5 Ke5 a5 b4+ Kb6 c4 d5 c5+ Ka7 h6 a4 b6+ Kb7 b5 f4 h7 a3 g6 f3 h5 a2 h6 d3 g7 d4 Bg2 e6 Rh4 d2 Ne2 f2 Nbc3 Bd7 c6+ Kc8 b7+ Kc7 Rb1 Kb6 Rb4 Kc5 b6 a1B Na2 Nf6 g8R f1Q Rg6 d3+ Rd4 Rg8 h8Q Qc8 h7 Qf2 Qh1 d1Q Bh6 d2 Nec1 Qg4 Qf1 Ne8 Qf6 d1B h8N Bc2 Nf7 Nd6 Bh1 Be8 Qg1 Na6 b8Q Qb7 Qc8 Nb8 Qd1 Bb2 Bg2 Ba3 Rb4 Qd7 b7 Bb1 Ra4 Qc2 Qd4+ Kb5 Qa1 Be7 Bh1 Bd8 Bg2 Bb6 Bf3 Be3 Rd4 Na6 b8B Nb7 Bd6 Nd8 c7 Nc5 Qc3 Qb2 Qe7 Qc6 Kf6 Qb7 Qcd7+ Nc6 Bg3 Nd3 e5 Nf2 Rf4 Bf5 Be4 Qc2 Qa1 Kc4 Qed8 Rh8 Kg7 Rf8 Q7e7 Bd7 Qf6 Rh8 Qb8 Rc8 Kh7 Nd8 Kh8 Be8 Kg8 Qb4 Qb7 Rcb8 Qc8 Qb7
q6k/PBRb1b1q/3K4/P2n1B1p/Nb1rQ3/rnB2R1n/N1NQQ3/6Rb w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kf7 Kd3 Kg7 Kc4 e5 g4 h5 a4 c5 f4 b6 d4 h3 f6+ Kh7 d6 e4 Kd5 b5 g5 h2 a6 c4 a5 c3 g6+ Kh6 a7 c2 f5+ e3 d7 b4 f7 Kg7 f6+ Kh6 g7 Kh7 Ne2 b3 Bb2 c1N Rg1 h1B+ Bg2 Bc5 f8R Na6 f7 Bd6 Bc3 b2 Na3 b1B Nc2 Qh4 d8N Rb8 Nc6 Nc5 N6b4 Bd7 Na2 Qe7 Rc8 Rb7 f8Q N1d3 Rc7 Nf2 Qf4 Nh3 Qd2 Rb3 Qe4+ Bf5 Kc6 Ra3 d5 Nf6 g8B+ Kg7 Be6 Rd8 Rf1 Kh8 Rf3 Qh7 Qd1 Bg6 Bf5 Bf7 Qdd3 Be7 d6 Bf8 d7 Bd6 Bd2 Nd5 Nec3 e2 Na4 e1Q Qde2 Qg3 Be1 Qgg8 Bb4 Na6 Be1 Bb4 Bd2 Nc5 Kd6 Rc8 d8Q Ra8 Qd7 Rd8 Nd4 Bd3 Rg1 Bb5 Bc3 Bc6 Ke5 Qf8 Nc2 Bb5 Qd6 Rd7 Qh6 Qa8 Qc1 Rd6 Qcd2 Bd7 Qe2e3 Rg6 Qee2 Rg4 Kd6+ Qg7 Q4d3 Rd4 Qde4 Qh7 Qe7 Bg8 Rf2 Nf6+ Bd5 Bf7 Rf3 Rh4 Bb7 Rd4+ Ke5 Nd5 Kd6 Nhf4 Qh4 Nh3 Qhe4 Nb3+
Q3R2B/p1P4R/8/1rNBbb2/1bB2Qbr/PK5k/R3qq2/nNNnQ2n w - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 b4 d5 cxd5 Nc6 bxc5 Nb8 h4 gxh4 f4 Kd7 g4 b5 d4 e5 Kd2 h5 Kc2 b4 d6 b3+ Kc3 b2 f6 Ke6 c6 e4 g5 Kf5 c7 e3 f7 h3 d5 h4 d7 e2 a3 Kg4 d6 h2 f5 h3 g6 Bg7+ f6 Na6 f8N Rb8 Ne6 Nh6 Bf4 Qf8 d8R Nf5 d7 Ne3 Be5 Nb4 f7 Rh4 Qe1 Nbc2 Ra2 Rb5 Re8 Nd1+ Kc4 Bh8 d8Q Bf6 Bc3 Be5 g7 Qe7 g8B Qf8 Nd2 b1B Nc5 Qe7 f8Q Bd7 Qef2 e1B Bd5 Qf7 Qe3 Qf2 Ne2 Bc8 Nc1 Bf5 Bf3+ Kg3+ Qe4 Bg4 Bd3 Qe2 Qde7 Qf2 Qa8 Qe2 Bd5 Qf2 Rf1 h1Q Qf5 h2 Qf4+ Kh3 Rg1 Be2 Rg7 Bg4 Rh7 Qhf1 Qe6 h1N Bb2 Nb4 Kb3 Q1e2 B3c4 Bbf5 Nb1 Nc2+ Ka4 Bd6 Bh8 Bb4 Qee4 Be5 Kb3 Qee1 Qe2 Qef1 Qed2 Q1e2 Qe1 Na1+
k4KQ1/1rqqb3/3nBP1p/4NRNP/Bq5R/2N2Q1b/1B1nR2n/1n1Qq3 w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 a5 cxd5 b5 axb5 Ra6 Ra2 Rf6 Ra3 exf4 Ra1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 Kd7 h4 g5 e4 c5 d4 Kc7 b4 Kb7 e5 c4 e6 a4 e7 a3 e8B g4 b6 a2 b5 h6 d6 c3 f6 c2 h5 Bf5 d7 Be6 d5 Ka8 d6 Qe7 d8N Qd7 Rh4 Rh7 Nh3 Na6 Bb2 c1Q Nc3 Be7 Nc6 Nc7 Ne5 Bd8 Bc4 Nd5 Ng5 Nge7 Qb3 Nf5 b7+ Kb8 Rb1 a1Q Qd1 Ka7 b8R Qa3 Bb3 Qb4 b6+ Ka6 b7 Ka7 Ba4 Re7 Bf7 g3+ Kf1 f2 Ke2 f1N Kf3 g2 Kg4 g1N Qf3 Nd2 Bg8 Qc2 Re1 Rf7 Re2 Qc1 Qe4 f3 Rc8 f2 Rc5 f1Q b8Q+ Ka6 Qc8+ Ka7 Qf4 Qfe1 Qe4 Qc7 d7 Ngf3 Qf4 Qcd1 Rb5 Be7 d8Q Rg7 Qd6 Bd8 Rc5 Bd7 Be6 Rh7 Qca6+ Kb8 Qac4 Ka8 Qb3 Rg7 Qf8 Nd6 Qg8 Qc1 Qd1 Nh2+ Kh3 Bc8 Qf3 Qc6 Rb5 Rb7 Rc5 Qd7 Rb5 Nb6 Rd5 Nbc4 Rc5 Nhf1 Kg4 Nh2+ Kf4 Qc2 Rb5 Nb1 Rd5 Ne4 Kf5 Ncd6+ Kg6 Qc1 Rc5 Qf4 Rb5 Ned2 Rc5 Qfc4 Rd5 Qcc7 Rb5 Be7 Kg7 Bd8+ Kf8 Qdc6 Ba2 Bh3 Be6 Qd5 Ng4 Qdc6 Rf5 Q6d7 Ne5 Be7+
RN1r1BR1/2p5/b1KB2P1/QNrrb3/npR3Q1/N1q1k1nb/P2n2BQ/8 w - - 0 1 illegal: No possible last move
bbr5/3R3Q/2bB2N1/1N1k4/K4RQp/2nq1p1P/3RPB1r/q1n1qQNB w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 dxe5 Na6 axb5 Nb8 f4 gxf4 Kd2 Ke7 Kc3 Ke6 Kb4 f5 c4 h5 g4 d5 h3 a5+ Ka4 f3 b6 d4 g5 f4 b7 d3 c6 h4 c7 d2 c5 f2 c6 Kd5 g6 Nh6 e6 Na6 b8B Ng4 e7 Nb4 e8R Rg8 g7 Bd7 c8N Bd6 Re4 Na2 Bg2 f1B Na3 Ne5 Nb5 Nd3 c7 Bc6 Bf3 Bg2 Qf1 Rf8 g8Q+ Rf7 Bb2 Ndc1 Qh7 Be5 Bd4 d1Q+ Ka3 a4 Bf2 Qe1 Ne7+ Ke6 Ng6 Kd5 c8Q Rg7 Bba7 Bb8 Bac5 Qd6 Qg4 Rg8 Kb2 a3+ Kc2 Rc8 Rb1 Ra7 Rb2 Rf7 Bb4 Qe5 Bd6 Qd4 Kb1 Rf5 Rd2 Qd3+ Ka1 Ba8 Rc4+ Ke6 Bb7 Bc6 Re4+ Kd5 Re7 Nc3 Rd7 a2 Kb2 Rf6 Ka3 a1Q+ Kb4 N3a2+ Ka4 Rff8 Rh2 Rf6 Rg2 Rf5 Rg3 Rg5 Re3 Rf5 Re4 Rg5 Qf3 Rg2 Qg4 Rh2 Bd4 Kc4 Rf7 Bd7 Ree7 Be8 Bh1 f3 Rf4 Bec6 Bf2+ Kd5 Rd7 Nc3+
b5Nb/1n1b1Q2/k2N3B/2q3p1/P1pqB2P/NR1qR3/K2r1BQ1/n3rRQ1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 h4 g5 d4 e5 Kd2 b5 Kc2 c5 Kb2 Kc7 a4 Kb6 h6 c4 d6 e4 h7 e3 f6 b3 d7 b4 f5 e2 d5 e1Q d6 Ne7 f7 Ra6 f6 Qe8 d8Q+ Kb7 d7 Nf5 Ne2 Rg8 h8R Nd4 Ra3 Bh6 f8B Qf2 f7 Bg7 Be3 Rd6 Bg2+ Nbc6 Be4 Ka6 Rf1 Nc2+ Nd4 Na5 Qe1 Be5 Bh6 Qe7 f8Q Nb7 Qf7 Re8 Qe2 Qf4 Qg2 Na1 Bf2 Qg4 Rf8 Bh8 Qc7 Qf4 d8N Bd7 Nc6 Rd5 Qg1 Qc5 Ne7 Qf6 Ng8 Qd8 Bg6 Re1 Be4 Qf6 Qe5 Qfb6 Nb5 Rd2+ Bc2 Qf6 Rb8 Qf4 Nd6 Qfd4+ Nc3 Re4 Kb1 b2 Ka2 Re1 Qe4 b1B+ Kb2 b3 Qeg2 Rdd1 Be4 Bc2 Re8 Rd2 Re7 Bd1+ Kb1 b2 Ka2 Bf3 Ncb5 Qa7 Rb3 b1Q+ Ka3 Qbd3 Re8 Nc2+ Ka2 Qac5 Na3 Na5 Bf5 Ba8 Re3 Nb7 Be4 Na1+
b1qq1N2/1k3B1N/3P2QB/4b2n/2nQ1qP1/3p1NBr/K3R1Rp/Rr4Qn w - - 0 1 illegal: No proof kernel
q2B3Q/3R4/3pb1b1/1k3P1N/p2nrq1Q/B1RPQB1R/n2q1N1b/2rNK3 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 f4 h5 g4 a5 c4 e5 d3 h3 f6 h4 f7+ Ke7 b6 h2 g5 d6 b7 Kd7 f5 Kc6 g6 e4 g7 h3 Nc3 e3 Qd2 e2 Nd1 Rh4 Bg2+ Re4 Qe3 Na6 b8Q Qg5 Ba3 Qf4 Qb4 Ra7 Bf3 Ne7 g8N Rc7 Nf6 Be6 Nh5 Bg7 f8B Be5 Rc1 a4 Rc3 Rc8 Bg7 Bf7 Bf6 Bg6 Bg5 Nc7 Bf6 Nb5 Bg5 Nd5 Bd8 Kb7 c6+ Ka6 c7 Nd4 Rc2 Nc3 c5 Na2 c6 Nc1 Rc3 Na2 Qc4+ Kb6 Qe6 Kb5 Qf6 Rb8 c8R Rb6 c7 Rc6 Qh4 Rc5 Rc1 Rc3 Ra1 Rc1 Rb1+ Kc6 Qg3 Qh6 Qd2 Nb3 Bg4 Rb4 Qde3 Bf4 Kf2 e1Q+ Kf3 Rd4 Qh4 Qd2 Rb2 Qg5 Rc2+ Kb5 Rc3 Be5 Ra8 Qh6 Ra7 Rf4+ Kg3 Nd4 Be2 Rg4+ Kf2 Qg5 Nf3 Qh6 Ng5 Bf4 Ne4 Qg5 Rg1 h1Q Rg3 h2 Rh3 Be5 c8Q Qh6 Qc7 Qg5 Qg7 Bf4 Nc5 Qa8 Ne4 h1B Qh8 Bh2 Rd7 Bf3 Kf1 Bh1 Nf2 Bd5 Bf3 Be6 Ba5 Re4 Bd8 Qc2 Ke1 Qf4 Qg4 Qb2 Qh4 Qd2+
b1r5/3Bk1bP/1N2BbRB/1Q2q1p1/4QpPn/qN1n1R2/2QR4/3rqNK1 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 Kf2 f5 b4 c5 h4 a5 d4 a4 g4 a3 e4 c4 d6 c3 b6 f3 d7+ Ke7 e5 a2 b5 c2 d5 Ra6 b7 Qe8 d8Q+ Kf7 d6 Ra3 h5 Na6 b8Q Ne7 h6 Be6 b6 Nc6 b7 Nd4 d7 Nc7 Rh3 Nb3 Bc4 Qe7 Ne2 Ra4 Kg1 Qd6 Ng3 Nc5 Nf1 Bd5 Qdc8 N7e6 d8R Ng5 e6+ Ke7 Nbd2 Qe5 Nb3 Nd3 Qg6 Ra6 h7 Rd6 Be3 c1Q Qc5 Nf7 Bh6 f4 Qe4 g5 Qf2 Qa3 Qc2 Rd7 Rd1 a1B Rd2 Bg7 Rg8 Bf6 Rg6 Nd6 Rg3 Nf5 Qe8+ Kd6 b8N Ba8 e7 Nh4 Be6 Rd8 Qb5 f2+ Kh2 Rd7 e8B Ke7 Rf3 Rd4 Bc6 Rc8 Nd7 Bg7 Nb6 Bc3 Ng3 f1Q Bcd7 Qe1 Nf1 Qf5 Qed5 Nc1 Rg2 Rd1 Qde4 Nd3 Rd2 Bcf6 Kg1 Qe5
1N2Nkn1/1RRK3p/2P2q2/Q1rB1P1n/4n1Q1/1rBr3Q/2N2RBp/b3q2b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Kd2 e5 Ke3 d5 g4 a5 b4 h3 f4 d4+ Ke4 h2 c4 a4 b6 d3 b7 d2 g5 a3 f6 a2 g6 Ne7 b5 Na6 b8Q Bb7+ c6 Nc7 b6 Ne6 c5 Rg8 g7 Ra5 Na3 Ra4+ Nc4 Qc8 f7+ Kd8 Qa8 Nd5 Kf5 Ke7 c7 e4 c6 e3 Nf3 e2 Bb2 e1Q Qa5 Ra3 Nd4 Ba6 b7 Nf6 b8N Qd8 c8Q Rd3 Qg4 d1N Bg2 Nf2 Nc2 N2e4 Nd6 Bc4 Bc3 Bd5 Ne8 Rh8 g8B Bg7 Rd1 a1R f8R Rc1 Rd2 Qd6 Rf2 Qd8 Bf7 Ng8 Rg1 Nef6 Rgf1 Nc5 Be6 Bf3 Bd5 Nh5 Rf6 Qd6 Rg6 Bd4 Rg7+ Kf8 Rc7 Ne4 Rb7 Qd8 Ke6 Qf6+ Kd7 Be5 Bh3 Bh1 Bg2 Rb1 Qh3 Rb5 Rc7 Rc5 f5 Qd2 Rb1 Qe1 Rbb7 Bd4 Bd2 Ba1 Bc3 Ne7 Qd8 Rg8 Qc8 Rgg3 Qd8 Ng8 Qg4 Qh8 Qdh4 Qf6 Qhh3 Rgf3 Bd4 Rb3 Bc3 Rd3
2k2qNR/Qbp3qN/3Pn1RK/n1P5/Q5r1/bB1q2n1/1p1R4/1NQrB2B w - - 0 1 illegal: No possible last move, all moves rejected
2BNQ3/1Nk2N2/6r1/2brn1r1/7r/Pp2Bq1B/1P3pQR/RKRb1Qnb w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 Kd1 Kd7 Kc2 c5 e4 g5 h4 f5 d4 g4 e5 c4 d6 g3 e6+ Kc6 d7 b5 a3 b4 e7 c3 e8B f3 h6 f2 h7 g2 h5 f4 h6 f3 Nd2 b3+ Kb1 Bb7 d5+ Kc7 Qa6 Ne7 Ne4 Nf5 Nh3 g1R Nhg5 Qf6 d8N Ng3 Ngf7 Ne2 Bh3 f1B Bed7 f2 Nc5 Rg6 Be3 Nc6 Bc8 Ng1 Rh2 Rhg8 h8R Ne5 h7 Qf3 Qc4 Bc6 Ncb7 Ra4 Qb5 Bg2 Qf1 Bh1 Qg2 Bc5 d6+ Kb8 d7 Kc7 Qf1 Rh4 Qg2 R8g7 Rf8 Bb5 h8Q Be2 Qh6 Rg5 Qa6 Bd1 Qaf1 R7g6 Ne6+ Kb6 d8Q+ Kc6 Qe8+ Kb6 Kc1 c2 Ned8 Kc7 Rh8 Rg7 Rh6 Rg8 Ra6 R8g6 Rc6+ Kb8 Kd2 c1R Rc7 Rc3 Rc6 Rd3+ Kc1 Rd5 Kb1 Bb6 Rc3 Bc5 Rc1 Kc7
1N1K4/1QQRnb2/Nb3R1p/3q3P/B2R1Bp1/nQNb2r1/1bP3nk/5r1B w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 Ke7 Ke3 Ke6 Ke4 g5 f4 a5 h4 d6 f5+ Kd7 Kd5 g3 e4 h6 c6+ Ke7 h5 a4 c7 g4 f6+ Kf7 b6 g2 b7 a3 Bf4 a2 Na3 Na6 Kc6 Ke6 b8N d5 f7 d4 Qb1 d3 Nb5 d2 Ne2 d1B Nec3 g1N Bg2 Nf3 Qb3+ Qd5+ Kb6 Ba3 f8R Bd7 c8Q Ne1 Qb7 Be2 Rd1 a1B Rd4 B3b2 Rf1 Be8 Rf7 Nc7 Rd7 Ra3 Bh1 Ne7 Rf2 Kf7 e6+ Kf6 e5+ Kf5 Rf3 Rf8 Rf2 Ng8 e7 Ng2 e6 Bf7 e8Q Ne7 Qd8 Bd3 Rf3 Bc1 Rf2 Bab2 Qdc8 Be3 Rf1 Ne8 Nc7 Nd6 Nca6 Nc4+ Kc7 Bg1 Be5+ Kg5 Rf6 Kh4 Bf4 Kh3 Qd8 Ra1 Qdc8 Na3 Qd8 Rf1 Qdc8 Nc6 e7 Rf3 e8B Ne7 Kd8 Rg3 Qcc7 Kh2 Rb4 Bb6 Rd4 Rh8 Rdd6 Rh7 Ba4 Rg7 Rd7 Rg5 Bd2 Rf5 Be3 Rf3 Bf4 Rf1
QB1rn3/2b2Qr1/1nQp2RP/bb5p/k1NRR3/q4K2/BBPN4/1r2Nb2 w - - 0 1 illegal: No proof kernel
b1nN2N1/K1n1pR2/1N1B1B2/kb1pb2Q/n3PRr1/rB6/2Q2P2/1Q1q1n1R w - - 0 1 illegal: No possible last move
Qbn4n/R2b4/K1R1r1R1/1Q2q1Bq/5N1r/1BP1pNqP/pq6/2kNQ2B w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 f4+ Ke4 h3 g5 b6 d5 Kb5 e5 b4 a5 b7 a4 f6 g3 f7 d4 f5 a3 c6 g4 c7 g2 f6 a2 Nf3 g1Q Qe1+ Qe3 Bc4 d3 Bb3 d2 Rg1 Nc6 b8Q Ra6 Qa8 Bd6 f8N d1Q f7 g3 Ne6 g2 f8R Rh4 Nf4 Ne7 Rf7 Bd7 c8B Ng6 Bb7 Bb8 Rg7 Qf6 Nc3+ Kf5 Bd2 e4 Rc1 Nce7+ Bc6 Nc8 Rf7 Be6 Ra7 Nh8 Bb7 Rd6 Ka5 Qc5+ b5 Qce5 Bc6 Qe2 Nd1 Bd7 Ka6 Re6 Be3 Qg5 Bd2 Qf2 b6 Qh5 b7 Qfd4 Be3 Qb2 Bd2 Bd6 b8Q e3 Bc3 Bc7 Qb5 Bb8 Ba5 Qc3 Bd8 Qb2 Rh1 g1Q Bg5 Qg3 Rh2 Re7 Rd2 Re6 Rd6 Bc7 Bb7 Bb8 Rc6 Ke4 c3 Qf7 Rc2 Qh5 Rg2 Nf7 Be7 Qh7 Ng1 Qf3 Rg6 Nh8 Bg5 Qg3 Rb6+ Kf5 Bh1 Qh6 Rc6 Qh5 Ng2 Ke4 Qa5 Kd3 Nf3 Qf5 Bc4+ Kc2 Qb5 Qfe5 Nf4 Kb1 Bb3 Kc1
QR2BNnQ/1BBRbN2/P2prp1r/q2K4/5Q2/5P2/1kb2NRb/1n1bq3 w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 Bd6 cxb5 Bf8 b4 axb4 Kd2 Ke7 Kd3 Ke6 Kc4 g5 e4 c5 a4 f6 h4 g4 a5 g3 b6 b3 f3 b2 h6 g2 h7 Bb7 h5 Qc8 h6 Na6 Na3 b1B Qa4 Qd8 Ra2 Nc7 Bf4 Nb5 Nh3 g1Q Nc2 Be7 Nf2 Qc7 Nd4+ Kf7 e6+ Kg6 e5 B7e4 b7 Qb6 b8R Bec2 Kd5 Na3 Ba6 c4 Bb7 c3 a6 Bd1 Rh2 Qe1 Rd2 c2 Rg2+ Kh5 Bg3 Kg6 Qc4 c1B Rd3 Bc5 e7 Qba5 e6 Bf4 e8Q+ Kg5 e7 Bbc2 Qd8 Nb1 Ne6+ Kf5 e8B Be5 Nf8 Bf4 Bh4 Bh2 Bg3 Ra7 Bc7 Bcd6+ Qc5 Kf4 Rd4+ Ke3 Qb5 Bc5 Qa4 Ke2 Rd3 Ra8 Qf4 Ra7 Re3+ Kd2 Re7+ Kc3 Reg7 d6 Rd7 Kb2 Bc6+ Rb7 Qc8 Rb5 Qb7 Rb4 Qa8 Rb3 Bb7 Re3 Rc8 Re6 Rb8 Bb6+ Kc6 Qa1 Bd8 Ba7 Ba5 Bb6 Kd5 Bd8 Bc7 Ne7+ Kd4 Rg8 h8N Qaa5 h7 Rg6 Nf7 Rh6 h8Q Ng8 Kc4 Be7 Kd4 Qac3+ Kd5 Qa5+
1k2Nb2/5PnR/1pB1B1Qr/2rR2q1/1pNn4/PQ2B2b/q1rr4/1R1N1KQ1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kd7 f4 e5 d4 h5 g6 c5 f6 Kc7 g7 e4 g5 c4 f5 h4 g6 h3 f7 c3 d6+ Kb6 d7 Ka7 d5 h2 a3 b6 d6 c2 f6 e3 Nh3 e2 Nd2 Qe8 d8N Nc6 d7 Nd4 Rb1 Nh6 g8B Nc6 g7 Qe5 Nb7 Qg3+ Nf2 Qb3 d8R Qb2 Nc4 Bh3 Rd5 Qa2 Bg2 Rh7 Nbd6 Nf5 Ne8 Rh6 Be3 c1R Bf3 Rc3 Qb3 Rc2 Nd1 Rc8 Bg2 Kb8 Kf2 Bc5 f8Q Ncd4 Qf7 Bf8 Qg6 Rc5 Be6 Rd2 g8Q Ng7 f7 Rc2 Rg1 h1Q Ke1 Qh2 Rh1 Qf4 Be4 Qf6 Qg1 Qe5 Qh7 Qg5 Qg6 Bf5 Rh5 Bh3 Kf2 Rh8 Rh7 e1R+ Bd2 Re3 Bg2 Re2+ Kf1 Ngf5 Be3 Red2 Rg7 Rh5 Rh7 Ng7 Rd6 Bg4 Bc6 Rh6 Rd5 Bh3+
1rBBR2r/nqp2NN1/4qBQ1/2Q3p1/8/1P3RPb/2nkqNbQ/K1R1q3 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf6 h6 Bg7 hxg7 Kd7 Nf3 Ke7 Ng1 Ke8 e4 Kd7 d4 Kd6 Kd2 a5 Kc3 h5 b6 f5 b7 f3 e5+ Ke7 d6+ Ke6 d7 Kd5 g3 Ke4 b3 a4 Kb2 f4 e6 f2 e7 h4 e8R+ Ne7 g8Q g5 d5 f3 d6 h3 Qg6+ Ke5 Ba6 f1Q Ne2 h2 Qd2 f2 Nbc3 Nc6 b8Q Nd4 Qb4 Rb8 Nd1 Nc2 Nd4 Qe2 Ne6 f1B Ng7 Bg2 Rf1 h1Q Rf3 a3+ Kb1 Qh3 Nf2 Qe6 Qb6 Nc6 Bb2+ N2d4 Ka2 Na7 Rc1 Qf6 Kb1 a2+ Ka1 Qf5 d8N Qfe4 d7 Qb7 Nf7+ Kd5 d8B Bd7 Bc3 Bc8 Qe1 Nc2+ Kb2 Bd7 Bcf6 Bc8 Qg1 Bd7 Rb1 Bc8 Qh2 a1Q+ Kc1 Qa5 Kb2 Qae1 Rc1 Bd7 Bfe7 Bc8 Qa5+ Kd4 Bf6+ Q6e5 Qa3 Bch3 Ka2 Qa8 Bc8 Qb7 Nd3 Kc3 Qc5+ Kd2 Nf2 Qe6 Kb1 Ne3 Ka1 Nc2+
B2r1r2/Pn1p1bNq/3Qpk1N/3Rb3/K2n3b/2B3BR/1qPb3R/1Q4NQ w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 Kf7 Kc3 b5 Kb3 g5 h4 g3 a4 g4 f4 b4 f6 g2 a6 g3 a7 Qc7 f5 Bh6 h5 Bg7 h6 Ba6 a5 Bb5 c6 Bd3 h7 Bc4+ Ka4 b3 a6 b2 Bf4 Bd3 Nd2 b1Q Rh3 Qbb6 Nc4 Qb1 Nd6+ Kf8 f7 Qd8 c7 Be5 c8R Kg7 f8N Kf6 Nf7 Nc6 Ne6 Na5 Rc5 Nh6 Rd5 Bc4 Ng7 Rf8 h8B Qb2 Qb1 Nb7 Ra3 Qdb6 Rh2 Rad8 a8Q Q6d4 a7 Qe4 Be2 Qd3 Bf3 Qe4 Nh3 g1B Rad3 g2 Bg3 Bb6 Ng1 Be3 Rb3 Bd2 Rc3 Ng4 Nh6 Ne3 Rb3 Qg4 Ra3 Qg6 Rc3 Qh7 Rb3 Kg5 f6 Nf5 f7 Kf6 Rbd3 Nd4 Rc3 Bd3 Rb3 Bg6 Be4 Rfe8 f8Q+ Bf7 Rc3 e6 Qd6 Nb3 Bf4 Rf8 Rch3 Nd4 Bg3 Be3 Bf3 Bd2 Qc8 Nf5 Rc5 Na5 Rb5 Bd4 Bb7 Kg5 Ba8 Nb7 Qcc6 Bf6 Qe4 Kg6 Qed5 Bh4 Ne8 Kg5 Q5c6 Kg6 Bc3 Nd4 Ng7 Kf6 Ne2 g1B Rh5 Bge3 Qch1 Beg5 Ng1 Bgf4 Rd5 Be5
5qb1/1N2B1pN/1N1Q1n2/4nBBR/K3RrnR/PQn3k1/p2n2P1/1r1Q2q1 w - - 0 1 illegal: No possible last move, all moves rejected
2Q2bkq/1nBN1bP1/N1pn3B/2Q5/R3Q1R1/p1n3KB/P3q1b1/1R1r1Nb1 w - - 0 1 legal: proof: d4 b5 c4 bxc4 f4 a5 h4 e5 dxe5 g5 fxg5 Bh6 g4 Qf6 h5 Qf4 g6 Ra6 g5 Bf8 g7 Rg6 hxg6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 f5 b4 h5 e4 d5 e6 h4 e5 f4 b5 c3 b6 d4 b7 h3 e7 c2 Bd2 c1B Qc2 f3 Kg3 d3 Qc5 h2 Bh3 f2 Nf3 Nf6 g8R f1Q g7 Kf7 e8N c6 Nc7 a4 Na6 Nbd7 b8B a3 Bc7 Qe2 Bf4 Ne8 Nbd2 Qf6 Nf1 d2 Rb1 d1N Be3 Nd6 e6+ Ke7 g6 Nc3 Rg1 h1B Bh6 Be3 Ne5 Bg2 Rb4 Ke8 e7 Bd4 Rh1 Bg1 Ra4 Rh7 Qc4 Nc5 Nd7 Ncb7 Qc5 Qe4 Rh8 Qfd4 g8Q Qe2 Qgc4 Rf7 Rg8 Qh8 Qe4 Rf5 Rg7 Rd5 Rg8 Be3 Rg1 Rd1 g7 Qh7 Rh8 Kf7 Rh1 Qg8 Rh7 Qh8 e8Q+ Kg8 Rg1 Bf3 Rg2 Bg1 Qd8 Qb5 Rb2 Bh5 Rb1 Bf7 Ne5 Bg4 Qc8 Qb6 Bf4 Bf3 Rh4 Qb5 Nd7 Qe2 Bh6 Bh1 Rg4 Bg2
rqr5/1p4B1/2b3Nn/1r3PQ1/R3RpK1/B1Nq2bR/BPQ1Q1qN/3q2k1 w - - 0 1 illegal: No proof kernel
1rqN1QN1/p1n1n1Q1/2B1BqnB/2p2R2/QR1NKP1b/6k1/P1n1r3/5R1r w - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 g5 c4 bxc4 h3 f5 Na3 Bb7 Nb1 Bf3 gxf5 g4 Qc2 g3 Qd1 Bg4 hxg4 Ke7 Qd6+ Kf7 Qd1 Ke8 Kd2 Kf7 Ke3 h5 b4 c5 g5 d5 g6+ Ke7 b5 h4 e6 Kd6 g7 Ke5 e7 g2 e8B c3 f6 h3 b6 c2 b7 h2 f7 Kf5 Nf3 Kg4 Bc6 g1N Bh3+ Kh5 Qd4 Bd6 f8Q Qc8 Ng5 Na6 b8R Nc7 Na3 Nf3 Nf7 Be7 Nd8 Bh4 Rb4 Ne7 g8N Ne5 Nb5 Rb8 Be6 N5g6 Qdg7 d4+ Ke4 d3 Bh6 c1Q f4 d2 Nd4 Qc3 Raf1 d1N Rhg1 h1R e3 Bf2 Rg5+ Kh4 Rf5 Qb2 Kf3 Qa1 e4 Ne3 e5 Nc2 Ke4 Qc3 Bf7 Kg3 e6 Ned5 e7 Rh7 e8Q Ne7 Bg5 R7h2 Bh6 Qa1 Be6 Qb2 Nb5 Qf6 Qd7 Kg2 Nd4 Bh4 Bb7 Kh3 Qa4 Kg3 Bc6 Re2+
K1NQ2N1/2Bq1B1Q/2R1p2R/6Pn/Q1rRP1p1/8/b3nbnn/1nkn2NB w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 f5 h3 a5 gxf5 g5 h4 g4 Ra2 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 Kd2 Kf7 Kd3 h5 Ke4 h4 Kd5 d3 b4 a4 c4 d6 e4 h3 f4 a3 c5 a2 b6 d2 f6 Kg6 b5 h2 c6 Rh6 f5+ Kh5 b7 Qa5 c7 Kh4 f7 Kg3 f6 Kf4 Bg2 Ke3 Qa4 Qa7 b6 Nc6 b8R Ne5 b7 Nf3 Kc6 d5 Na3 d4 Nb5 d3 Nd6 Be6 c8B Bc4 Ba3 d1N Rc1 Kd2 Be6 a1N Rd8 Nc3 b8N Ba2 Nc8 Nc2 Nd7 Nb1 Bd6 Ne3 Bc7 Qd4 Kb7 Qd6 Ndb6 Qd7 Rc6 Rg6 Bc4 Kc1 Ka8 d2 Nd5 Bg7 f8Q d1N f7 Bd4 Qg7 Nf6 f8Q Nh5 Nf6 e6 Qh7 Rg7 Ng8 Rf7 Qe7 Rf5 Qe8 Rc5 Bb5 Rc4 Qf8 Nd5 Qf6 Bf2 Qd4 Ndf4 Qf6 Qg7 Rd4 Qd7 Qd8 Nfd2 Rcd6 Nf1 Bf3 Ng2 Bc6 Qf7 Be8 Qd7 Rc6 Nhf4 Qde7 Nge3 Qd8 Ne2 Bg6 Nec3 Nh3 Ne2 Rg1 h1N Bf7 Nhg3 Rh1 Rc2 Ng1 Rc4 Rh3 Nh2 Bh1 Ng2 Rh6 Nh5
5nR1/2pbQ1B1/2Pb1nk1/1P1qBN2/Bnb1N3/3R3p/QQ3bn1/2r1N1RK w - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 a4 f5 h4 b5 axb5 Ra6 Ra3 Rg6 Ra4 fxg4 Ra1 g3 Qd2 g4 Qd1 Rg5 hxg5 Bd6 Rh2 Bc5 Rh1 Bf8 b4 Kf7 c4 d5 f4 h5 e4 h4 b6 a4 c5 d4 e6+ Kg6 b7 h3 c6 g2 Kf2 a3 e7 d3 e8Q+ Kg7 f5 a2 f6+ Kh7 e5 d2 g6+ Kh6 f7 Kg7 e6 Qd3 e7 Be6 Nf3 g1N Qc2 d1B Nbd2 Qd7 Bb5 Qd8 Ne4 Nf6 Ba4 Rh4 Ne1 Nf3 Bb2 Bd7 Be5 Be2 Rd1 a1N Rg1 Bc4 Qa2 Nc2 Rd3 g3+ Kf1 Kh6 g7 Kg6 g8N Rh5 Nh6 Nh4 Nf5 Ng2 b5 Nb4 Qb2 N8a6 b8Q Nc5 Qa8 Ne6 Qa5 Bc8 Qa8 Qd5 Qd7 Rh4 e8R Bd6 Qe7 Bd7 f8B Rh5 Bg7 Nf8 Rh1 Rh4 Kg1 Rf4 Rc8 Rf2 Qa7 Rc2 Rb8 Rc1 Qaf2 Ne6 Rg8 Nf8 Qa2 Ne3 Qfb2 g2 Kh2 g1B+ Kg3 Bf2+ Kh2 Rc3 Rg1+ Ng2 Kh1 Rc1
4qQ2/1r6/2QprrP1/PBN2KpN/B1nRQ3/bR2pb1k/n2b2N1/3RB3 w - - 0 1 illegal: No possible last move, all moves rejected
3Rrk2/K1q1r1n1/p1p1nBQ1/1N4BP/P1p1B3/2Q1Q2b/R3N2R/2rbN1q1 w - - 0 1 illegal: No possible last move, all moves rejected
1QR5/1Kq1pRb1/5nBp/2r5/3Qr2B/N1QbNPPB/k1qRn1pb/1N6 w - - 0 1 illegal: No proof kernel
kNQb1r2/2pnB3/2r2p2/1QRqRP2/2N1Pn1R/3b4/BNQp3K/1r2B1q1 w - - 0 1 legal: proof: g4 e5 d4 b5 a4 d5 axb5 h5 gxh5 exd4 c4 Bc5 cxd5 Bf8 h4 Kd7 e4 g5 b4 a5 f4 g4 Kf2 d3 Kg3 f6 f5 a4 h6 a3 d6 a2 h5 Nc6 b6 Ne5 b5 Qe7 b7 Ra4 b8Q Ra8 h7 Nc6 b6 Nd8 h6 Kc6 b7 Kb6 d7 Qa3 Qc2 Ra7 Nc3 Qa6 Rh4 Qa5 Nd1 Ne7 Nb2 Ng6 Kh2 Ra6 Bd2 Qd5 Be1 d2 Rc1 a1R Nf3 Nf4 Bc4 Nf7 d8B Be7 Ne5 Rf8 h8Q Rb1 h7 Bd7 Qc8 Ka7 b8N Ka8 Ba2 Bb5 Nec4 Ne5 Qg8 Re6 h8R Nd7 Qf7 Rc6 Qe8 Ba3 Be7 g3+ Kh1 g2+ Kh2 Qd4 Ne3 Bd3 Nec4 Nc5 Qed7 Bb4 Qd5 Nd7 Qb5 Qd5 Rg8 Rf7 Re8 Rf8 Bc5 Ba3 Re5 Bb4 Bb6 Be7 Bc5 Bd8 Be7 Ra6 Qd1 Rd6 Rc3 Rc6 Qc2 Rc5 Na5 Rc6 Rc5 Re6 Nac4 Rb6 Rg4 Rc6 Rh4 g1Q+
rqq1R3/4b2k/2Q2P1b/1npK1p2/4QP2/1pB2N2/b1B2Nr1/1R1RqQBN w - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 f5 gxh5 d5 cxd5 Nd7 e5 Ndf6 exf6 Qd7 Ba3 Qd6 Bc1 Qd8 Ke2 Kf7 Ke3 e5 f4 g5 h4 b5 d4 g4 a4 b3 a5 b4 d6 b2 a6 c6 d5 e4 Kd4 e3 d7 e2 a7 e1Q h6 Kg6 h7 b3 h5+ Kh6 d6 g3 Bd3 g2 Nf3 g1B+ Be3 c5+ Kd5 Qea5 Qf1 Ba6 Nbd2 b1Q Bc2 Rb8 a8Q Bg7 Ne4 Bf8 Ng3 Be7 Qc6 Qf8 d8N Qa3 d7 Bf2 Nb7 Qc8 d8B Ra8 Ba5 Bd3 Nd6 Qb4 Nde4 Qbb8 Bc3 Qe1 Rb1 Ra2 Rg1 Rb2 Nh1 Bh4 Nef2 Bg5 Bed4 Ba6 Be4 Bd3 Rd1 Bb1 Bc2 Bd8 Qd3 Be7 Qe4 Ba2 Rb1 Qc1 Rd1 Qd2 Nd3 Qe1 Bg1 Bf8 Ndf2 Be7 Qe2 Bd8 Qf1 Ne7+ Kc4 Re8 Qe4 Nc6 Kd5 Re7 h8R+ Rh7 Be5 Nd4 Re8 Nb5 Bd4 Rh8 Bc3 Kh7 h6 Kg6 h7 Bh6 Ng3 Be7 Ngh1 Rg8 h8Q Rf8 Bd3 Re2 Bc2 Rg8 Nd3 Rg2 Ndf2 Bg5 Qh3 Bh6 Qh5+ Kh7 Qf7+ Kh8 Qfe6 Kh7 Qc6 Qb6 Bd3 Qa8 Bc2 Rf8 Rb8 Qaa6 Rb7 Ra8 Rb8 Qab7 Rd8 Qc8 Re8 Qbb8
1KR2RR1/p3n2B/1BNQ4/1nq1NQpP/P7/4Q1bb/2p2bkq/rN3nB1 w - - 0 1 legal: proof: f4 e5 d4 h5 dxe5 b5 g4 Ba6 gxh5 Bc8 c4 bxc4 e4 Ba3 f5 Bf8 e6 Ke7 e5 Na6 Qd3 Rb8 Qd1 Rb6 Bh6 Rb4 Bc1 Bb7 Bh6 Qe8 Bc1 Kd8 Be3 Kc8 Bh6 Kb8 Bc1 Bc8 Bh3 Qd8 Bf1 Rb6 e7 Re6 fxe6 Kb7 Bd3 Kb6 Bf1 Kc6 Kd2 Kd5 Kc3+ Ke4 e8Q g5 a4 d5 h4 c5 b4 f5 h6 f4 b5 f3 b6 f2 b7 Qd6 b8N Nc7 e7 Qb6 e6 Qd6 h7 Bh6 h5 Qc6 Qd7 Bf8 e8Q Bd6 e7 Bg3 Nf3 Qb5 Be2 f1N Nc6 Qb6 Qd6 Bh3 Nfe5 Qb8 Be3 d4+ Kc2 c3 Bg1 c4 Qd3+ Kf4 Bg4 Qb6 Bf5 Nb5 Qed7 Qc7 e8R Ne7 Rg8 Bf2 Qe4+ Kg3 Qe3+ Kg2 Bg6 Qb6 Qf5 Qc5 Ra3 Bg3 Rb3 Bf2 Rf8 Rg8 h8B Rg7 Bh7 d3+ Kc1 c2 Kb2 c1B+ Ka2 Nc7 Rbb8 c3 Kb3 d2 Rbc8 c2 Rg8 Rf7 Bg7 Qd5+ Kb4 Nb5 Ka5 d1Q Ka6 Q1d2 Kb7 Qc5 Kb8 Qe2 Bf8 Bd2 Bg7 Bde1 Bf6 Bg3 Bh8 Bef2 Bf6 Ng6 Bd8 Rd7 Bb6 Ne7 Qdg6 Rd1 Qd6 Bg4 Rh4 Bh3 Rf4 Qd2 Nc3 Ra1 Nb1 Qdd5 Qfd3 Qdc4 Rff8 Qf4 Q3g6 Bh4 Qgf6 Qh2 Qf5 Bhg3
2N1q3/n1B2QR1/R1n1BPN1/2rpN3/1nnn1R1Q/pB4bK/P2p1r1Q/5k2 w - - 0 1 legal: proof: g4 f5 d4 g5 b4 e5 h3 c5 bxc5 exd4 Ba3 b6 Bb2 Bb7 Bc1 Bf3 gxf5 g4 Bd2 g3 Bc1 Bg4 hxg4 Bd6 Bb2 Be7 Bc1 Bf8 f4 Kf7 c4 Kf6 e4 a5 c6 h5 e5+ Kg7 e6 Kh6 f6 d5 e7 g2 Kf2 a4 Kg3 b5 e8Q a3 f7 d3 c7 h4+ Kh3 b4 c8B b3 c5 b2 g5+ Kg6 c6 Be7 c7 Nc6 Be6 Ra5 c8N Rc5 Nc3 b1N Qa4 Kh5 g6 Bd6 f8R Na7 f5 Ne7 Qf7 Nec6 Nce2 Nd2 Nf3 Qe8 Ne5 Nc4 Bf4 d2 f6 Rh6 g7+ Rg6 g8Q g1N+ Kh2 Nf3+ Kh3 Bc7 Rg1 Nfd4 Rb1 Bb8 Rb4 Bd6 Qc7 Rg2 Rf7 Rf2 Rgg7 Rg2 Qb8 Rf2 Rfb7 Bc7 R7b6 Bd6 Ra6 Bc7 Ng6 Bd6 Bh2 Bg3 Qf7 Kg5 Qd6 Kh5 Nc1 Kg5 Ne5+ Kf4 Ng6+ Ke3 Nd3 Kf3 Nde5+ Ke3 Bg2 Ke2 Bf3+ Ke1 Bd1 Kf1 Kg4 h3 Bb3 Bf4 Bg3 h2 Kh3 h1N Qb8 Nc2 Bh2 Ng3 Qd6 Nf5 Qdc7 Nb2 Rd4 Bg3 Rf4 Nc4 Re4 Nb6 Nc4 Bh4 Qg3 Ne1 Rg4 Nd3 Qg2+ Ke2 Bc7 Bg3 Nce5 Ke1 Qh2 Kf1 Qf4 Nc4 Qh6 Ndb4 Rf4 Nfd4 Qh7 Qf8 Qh4 Qe8
1B4Rn/3NRb1p/1p2rN2/1b3KBR/pQQ1rbb1/1P1N2k1/Q1BP4/b6n w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 b6 hxg5 Bg7 a5 Bf8 a6 Qf6 Qb3 Qc6 Qd1 Qb7 axb7 Bh3 Rh2 Be6 Rh1 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 g4 a5 b3 a4 g6 c4 g7 c3 g5 f3 g6 f2 Rh5 c2 Nf3 f6 Bb2 c1B Be5+ Kc5 d6 Nh6 g8Q Ng4 d7 Bh6 d8B Bf4 g7 Nd7 b8N Nf8 Ne1 Bb2 Nc3 Ng6 Qc2 Be6 e3 Bf7 Bd3 f1B Kf5 Nf2 e4 Nh1 Nd5+ Bc3 Qb2 Be2 Bc2 Ra5 Bec7 Kd4 e5 Rb5 e6 Rb4 Qa2 Bb5 Rb1 Ba1 Be7 Bd7 Qc8 Re8 g8R Nh8 Nd3 Bb5 Nd7 Rc4 Kg4 Ke4 Bb8 Rd4 Qc4 f5+ Kh4 Kf3 N5f6 Re4 Re1 Bfe5+ Kg5 f4 Bd8 Kg3 e7 f3 Re3 Bf4+ Kf5+ Ng6 Re1 f2 Qb4 f1B Re2 Rf8 e8Q Bg2 Qc4 Bf3 Qe7 Re8 Qeb4 R8e6 Ne8 Rd4 Bg5 Nh8 Re5 Re4 Nef6 Rd6 Ree8 Rde6 Re7 Bg4+
B3K3/RB2N2n/4pB1Q/n1nNnbQ1/RR2P1p1/6b1/P3Qp2/k1r1bNr1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e6 gxh5 Bc5 b4 axb4 f5 Bf8 f6 Qe7 fxe7 Kd7 Kf2 Kd6 Ke3 Ke5 e8B g5 h4 c5 d6 f5 d4+ Kd5 h6 Kc4 d5 b5 h5 g4 Kf4 b3 Ke5 b4 d7 f4 d8R f3 d6 f2 h7 b2 h6 b3 d7 Na6 Bg5 Nf6 Nh3 Bb7 Bg2 Rc8 Nf4 Be4 Nd2+ Kc3 Rb1 c4 Nf1 Bf5 Ba8 Bb4 e4 Nc5 Kd6 Rc6+ Ke7 Rc7 Ra1 b1N Nd5+ Kb2 Qe2+ Nd2 Bh4 c3 Rb1+ Kc2 Bb7 b2 Ra8 Rc6 d8Q Rc8 Ra1 b1N Bec6 Kb2 Ra4 c2 Rh3 c1B Rha3 Ba5 Qg8 Bc7 Qg5 Bg3 Ba8 Rhd8 h8N Nh7 Ng6 Rd6 Bcb7 Rdc6 Qe1 Ndb3 Qe2+ Bd2 Kf7 R8c7+ Ke8 Na5 Nge7 Rb6 Qa6 Bb4 Qe2+ Nd2 Rc1 Rd6 Rc4 Ka1 Rd4 Nf3 Rc4 Be1 Rcb4 Nf8 h7 Ne5 h8Q Rb6 Qhh6 Nh7 Rd4 Rb1 Rdb4 Nab3 Ra7 Na5 Raa4 Rd1 Qgh5 Rb1 Bf6 Rc1 Q5g5 Rd7 Nb6 Rdd1 Nbd5 Bd2 Nfe3 Rg1 Nf1 Be1
3Q1r2/nNKQ1p2/1R4rP/2b1N1n1/1RNp1PB1/1Bkb1pp1/2B5/1q1R2nQ w - - 0 1 illegal: No extended proof kernel
KB5Q/1rpb2p1/Bn4BN/4k2r/N2Rr1q1/2P1R1p1/Q3P1p1/RQ3nbN w - - 0 1 illegal: Other
Q4nQ1/1pb3B1/1N2n2r/1bp2kq1/R1p1p3/2PB2B1/2rQP2N/R1R2NKn w - - 0 1 legal: proof: g4 d5 f4 a5 b4 h5 gxh5 g5 bxa5 Bd7 fxg5 Ra6 c3 Bc8 Qb3 Ra8 Qc4 dxc4 h4 Kd7 Kf2 Ke6 a4 c5 d4 f5 g6 f4 a6 f3 g7 Qd6 h6 Nf6 g8Q+ Kf5 a7 e5 h5 Qd5 a5 Ne8 h7 Nc7 h6 Nc6 a6 Be6 Bg2 Nb8 Nd2 Qe4 d5 Kf4 d6 Qc6 d7 Bg7 d8R Bf5 Qd5 Rf8 h8B Nb5 h7 Qg6 Rc8 Bh6 Bg7 Bd7 h8Q Nd4 Qhg8 Bb5 Kf1 f2 Be4 Qg4 Ngf3 Ne6 Nh2 Nd7 Rc6 Rad8 a8N Rf6 a7 Ndf8 Rca6 Qh5 Kg2 f1N R6a4 Ng3 Nb6 Rd6 Rd1 Nh1 a8Q Qf5 Bc2 e4 Kg1 Qh5 Qd4 Kf5 Ndf1 Bf4 Qd3 Be5 Bf4 Rh6 Bg3 Qg5 Rdc1 Rd7 Qe3 Rd2 Bd3 Rc2 Qd2 Bc7
B1Q2R1b/pqbqNR1Q/N2n3n/rQp3BN/3p4/PK3Rp1/2P1n3/3k2B1 w - - 1 2 legal: proof: g4 h5 d4 hxg4 e4 e6 f3 Nh6 d5 Ke7 dxe6 Ke8 e5 Ng8 b4 c5 b5 Na6 Kf2 b6 Be3 Bb7 Ke1 Rc8 Bc1 Be4 fxe4 Rc6 bxc6 b5 Kd2 Ke7 Kc3 d5 h4 g5 a3 f5 h5 f4 h6 g3 h7 f3 c7 g2 c8Q f2 Nh3 g1B Nf4 g4 Qd3 b4+ Kb3 g3 Bg2 f1N Nc3 Nc7 Nh5 Nh2 Rb1 Be3 Rf1 Nh6 Rf3 Ne8 Ra1 Rg8 h8B Qd7 Qb5 Bd4 Bg5+ Nf6 Bh1 Rg6 Raf1 Bg7 Qg8 Be3 Qh7 Bf4 Kb2 b3 R1f2 Kf8 e7+ Kf7 e8N Ke7 e6 Bc7 e5 d4 Be3 Ne4 Nd5+ Kd8 Ne7 Nd6 Rf7 Nf3 Bg2 Ng1 Ba8 Ne2 R2f3 Bf6 Bg1 Bg7 Ng8 Bf6 e7+ Kc8 e6 Bg7 Kb1 b2 Ka2 Bf6 Kb3 b1Q+ Ka4 Be5 Bf6 Qb2 Bg5 Bh8 Qc6 Qb7 Qb5 Rf6 Kb3 Bd8 Neg7 Kc7 e8Q Rg6 e7 Re6 Qb4 Kc6 Qb5+ Kd5 Qf8 Rg6 e8R Bc7 Ne7+ Ke4 Qfg8 Ndf5 Rc8 Ra6 Rcf8 Ra5 Ne6 Nf4 Rf2 Ke3 Rf1+ Kd2 Rf3 Bhe5 Qgh8 Kd1 Q8g8 Ne2 Qgh8 Bd8 Nc7 Nd6 Na6 Bb6 Qf5 Bf6 Qhh7 Bh8 Qg4 Bc7 Qh3 Qd8 Qc8 Qd7
2r2B2/Qpqn1R1R/2kpQbR1/b1n5/qPNP4/q1N1bb2/1Q2B1r1/3BK1N1 w - - 0 1 illegal: No proof kernel
BqnR1QN1/2pQ4/4QRpB/n5Pr/bbb1rp2/kN1N1P1K/3Br1p1/7R w - - 0 1 illegal: No possible last move
5R2/K1p2qB1/3p4/2pP1B1B/n2NNbp1/2Qn2Pr/rRN2Rb1/1Q1Q1bbk w - - 0 1 illegal: No proof kernel
5B1Q/1pp1Q2K/bnkp2NR/1pPrQ1n1/BbB3q1/2p2R2/1P5N/3rr1RN w - - 0 1 illegal: Other
bQR2B1Q/pN2Rpp1/1b3qp1/B3r3/bNB2Prn/6P1/p2QRn1k/K1N5 w - - 0 1 illegal: Other
b5B1/5qR1/4R1Pp/1Br1R1NN/N1b2B1Q/2rBK2P/4qp1r/3k1bB1 w - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 a4 Qg5 axb5 Qd8 c6 a6 f3 Bc5 f4 Ba7 b6 exd4 bxa7 Qc7 Ra3 Qb6 Ra1 Qd8 c7 g5 Ba3 f5 Bc1 Nh6 Bd2 Nf7 Bc1 g4 g3 Ng5 fxg5 f4 Nc3 f3 Nb1 Nc6 Bg2 Nb4 Bh3 Nd5 Bf1 Nf4 gxf4 Rg8 Qd2 Rf8 Qd1 Rh8 Kd2 Kf7 c4 Ke6 e4 d5 e5 Kf5 h3 Ke4 g6 g3 c5 d3 e6 a5 e7 d4 e8N h6 c6 g2 f5 a4 f6 a3 f7 a2 f8B Rg8 Bc5 Qd5 Qa4 Qf7 Ng7 Bb7 Nh5 Rac8 a8B Rgd8 Ba7 Rd5 Rh2 Rc5 Nc3+ Kf5 Rb1 a1Q Rb6 Ke5 Qb4 Qa6 Na4 Ke4 Rh1 Qac4 Rh2 Ba6 Bb7 Bb5 Ba6 Qce6 Rb7 Bc4 Bb5 Qee8 Ne2 g1R Nef4 Rg3 Ne6 Rg2+ Be2 Rf2 Rh1 Rh2 Re1 Rd8 c8R f2 c7 Rd6 Bb8 Rdc6 Rd8 Qee7 c8B Qee8 Bf1+ Kf3 Rd5 Qee7 Rde5 Rc7 Kd1 d2 Bd3 R7c6 Kc2 d1B+ Kd2 Be2 Bd6 Bf1 Ng5+ Kg2 Be6 Qee8 Bdf5 d3 Ke3 d2 Bd3 d1B Bb8 Bde2 Rc7 Bd5 Qh4 Rc3 Re7 R6c5 Bd6 Ba8 Bb3 Qff8 Bg8 Kg1 Rg7 Qff7 Kd4 Qee7 Bf4 Kg2 Bc2 Bc4 Bd3 Qee6 Bb8 Qg4 Re6 Kg1 R1e5 Qe2 Bd6 Bfg2 Bc7 Kf1 Bb8 Ke1 Bc7 Rh1 Bh2 Kd1 Bg1 Rh2 Bd6 Qb2 Ke3 Qa2 Re4 Qb2 Bf4 Bf1 R4e5 Qe2+
r1NN1q1k/2Rpq3/1B1NRP1b/1n2N2Q/2N1q3/1B2p3/2q1B1RP/r5K1 w - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 g4 h5 gxh5 b5 axb5 f4 b6 f3 exf3 Qc7 f4 Na6 f5 Qc4 Rxa6 Qc7 b5 Qb8 Ra3 Ba6 Rxa6 Qc8 Ra1 Qd8 c4 Kf7 f4 e5 Kf2 g5 h6 a5 f6 g4 f5 e4 c5 d3 h7 a4 c6 a3 b7 a2 b8R d2 c7 Nh6 c8B Rg8 h8N+ Ke8 b6 Ra6 b7 Rd6 f7+ Ke7 f6+ Ke6 Na3 Ke5 Be2 Re6 Nc4+ Kf5 Nf3 g3+ Kg1 g2 Nfe5 Bg7 f8N Nf7 Nfg6 Ra6 Ne7+ Ke6 Rb1 a1Q Rb2 Nd6 Nhf7 Nb5 Nfd6 Qe8 Ra8 Qa2 b8N Qa3 Ra7 Qf8 Bb7 Bh6 Nec8 Qd3 Nbc6 Ra1 Ba6 Qe7 Rc7 Rd8 Qf1 d1Q Be3 Q1c2 Bb6 Re8 Qd1 Qd5 N8a7 Ra8 Nac8 Qdd3 Nb7 Kf5 Nbd6+ Kg5 Nd8 Qf3 Nef7+ Kg6 Nfe5+ Kh7 Bb7 Kh8 Bc6 Na3 Ba4 Nb5 Bb3 Qfd3 Kf2 Qd5 Re1 Qg8 Qd5 Qgf8 Qf7 Qfe8 Qh5 Q8f8 Kg3 g1Q+ Kh3 Qd4 Kg2 Qd5 Kg1 Qc6 Bd1 R8a6 Ng4 Qd3 Rg2 Qc2 Re3 R1a3 Be2 Ra8 Rd3 Ra2 Rd5 e3 Re5 Q6e4 Re6 R2a5 Nge5 Ra1+
B3b3/kBBPrq2/2PN1R2/1rRQqR2/4b3/B2NN1q1/rB1n1n2/1b3K2 w - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 gxh4 cxd5 c4 Ba3 Bd4 Bc1 Bc5 bxc5 Qd7 Ne2 Qc7 Ng1 Qd8 f4 Kd7 g4 Kc7 d4 Kb7 f6 a5 g5 h5 g6 e5 g7 h3 d6 c3 d5 a4 f7 e4 f8B e3 b6 h4 d7 h2 f5 h3 f6 e2 f7 a3 d6 c2 Bg2+ Nc6 Nf3 a2 Na3 Nh6 g8B Nd4 Rf1 h1B Bb2 c1R Nc4 h2 Ne3 Rh7 Ne5+ Nf3+ Kf2 Rc2 Nd3 Ra5 Rc1 Qf6 d8N+ Ka8 b7+ Ka7 Be7 a1Q f8R Bd7 Bd5 Rb5 Nf7 Be8 d7 Nd2+ Bdf3 Qa2 Nd6 Qe5 Rf6 Ng4+ Ke1 Nf2 b8B+ Ka6 Be4 Qf7 Bc7 Ka7 Ba8 Rg7 Bgc6 Be4 Bcb7 h1B c6 Bg6 Bf8 Bhe4 Be7 Nh3 R1f5 Nf2 Ba1 Ra2 Rc5 Qg8 Bf8 Re7 Bb2 Qf7 Nb4 Nb3 Qd5 Bb1 Nd3 Nd2 Bg7 Bh7 Ba3 Qg3 Re6 Bg6 Bgb2 Qe5 Ref6 Bh7 Rh5 Be4 Rhf5 Nh1 Bd8 Ng3 Kf2 Nh1+ Kg1 e1Q+ Nf1 Qh4 Bc7 Nf2 Ne3 Nb3 Kf1 Nd2+ Ke2 Qhg3 Ke1 Nb3 Kf1 Nd2+
1b4qn/5N2/1b1nQ2N/r5R1/3RR1B1/N1k1NPKB/b1r1b1PB/4brN1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 Kd7 g6 Kd6 g7 c5 b6 e5 f6 h5 f7 b3 b7 c4 Na3 c3 Be2 e4 Rh4 c2 Bg4 b2 f3 b1B Kf2 e3+ Kg3 e2 Qe1 Nd7 b8R Ne7 g8B Ra5 Rb5 Ng6 Bf4+ Nde5 Bh7 Ba2 Rd1 Bh6 f8N c1B Ne6 Be3 Ng7 Qg8 Bh3 Ba6 Nf5+ Kd7 d6 Kc6 d7 Nf7 Bc7 Nd6 Re4 Bhg5 Bb8 Bd8 Rd5 Bc7 d8N+ Kb6 Nf7 h4+ Kh2 Bb5 N7h6 Ka6 Bg4 h3 Kg3 h2 Rc5 h1R d5 Bd4 Ne3 Bbc4 Rb5 Bdb6 Rdd4 Bd3 Nh3 Rf1 Ng1 Qg7 Rc5 Rc8 Bg8 Qf8 B8e6 Qg8 Bh3 Nh8+ Beg4 Bd8 Rb5 Rc2 Rc5 Bdc7 Rb5 Ndf7+ d6 Bdc4 Rbe5 Bd3 d7 Nd6 d8N Bdc4 Qf2 e1B Ndf7 Be2 Rg5 Ba7 Kh2 Bcb6 Bc7 Bb8 Qg3 Rd5 Qe5 Ka5 Qe6 Rf5 Nec4+ Kb4 Ne3+ Nc4 Be5 Kc3 Bd6 Ra5 Be5 Bd2 Kg3 Nd6 Kh4 Bc5 Bh2 Bb6 Kg3 Be1+
b1N1bq2/qrNnNBN1/1Rb2R2/1nrb4/2k5/2B1PQ2/3R1K1P/1BN2b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 dxc5 e5 fxe5 Qf6 Bg5 Qb6 Bc1 Qd8 gxh5 b5 a3 b3 Nh3 b4 Nc3 b2 Na2 b3 Ng1 Be7 Nc3 Bg5 Nb1 Bd2+ Kf2 Bb4 axb4 Rh7 Ke1 Rh8 c4 Ke7 e6 f5 b5 g5 b6 d5 h6 f4 h7 d4 c6 Kd6 c5+ Kd5 e7 f3 e8B g4 b7 d3 c7 g3 c6 g2 Bd2 Nd7 b8R Ne7 Bc3 d2+ Kf2 Kc4 Ra2 Ra5 Bf7+ Nd5 Rb6 Bb7 c8N Qf8 c7 Bc6 Ne7 Rc5 c8N Rg8 h8N Rg7 Nhg6 Ba8 Qc2 d1B Nf4 Bc6 Ne6 Nc7 Qd2 Nb5 Qe3 Bc2 Qf4+ B2e4 Qg3 Rh7 Ng7+ Bed5 Raa6 Ba8 Rf6 Bc6 Rb6 Ba8 Be5 Bc6 Nc3 b1B Qh3 b2 e3+ Bd3 Bd4 b1B Nge2 Be4 Nc1+ Bbd3 Be2 Bg6 Bd1 Bde4 Bc2 Ba8 Rf1 Bc6 Bb1 g1Q+ Ke1 Qg3+ Rf2 Qc7 Rd2 f2+ Kf1 Qb8 Qf3 Qa7 Ke2 f1B+ Kf2 Na3 Nb5 Bh5 Bg8 Be8 Nc7 Nb5 Bf7 Ba8 Bc3 Bc6 Bg6 Ba8 Bh5 Bdc6 Bg6 Bed5 Bf7 Rh4 Kg1 Na3 Na2 Re4 Ra6 Kb3 Kf2 Rb4 Nc1+ Kc4 Rc2 Rbb5 Rd2 Rb7 Rb6 Nb5
4B1R1/RN2Q1Rp/Br1N4/1B1PBBK1/1nrn1n2/1qb3b1/2P2kq1/4Nr2 w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 g5 hxg5 b5 axb5 Qf6 Ra5 Qe7 Ra1 Qd8 d3 c5 Rh3 c4 dxc4 Nh6 Rh1 Ng8 Rh6 d5 Rh1 d4 Rh5 Bb7 Rh1 Bd5 cxd5 Qc7 Ra5 Qb6 Ra1 Qd8 Kd2 Ke7 e4 Kd6 b4 Ke5 g4 a5 g6 f5 g7 a4 g5 d3 g6 Kd4 b6 f3 e5 f4 b5 a3 e6 a2 e7 f2 b7 f3 b6 Nh6 g8B Qd6 g7 Qa3 Bf7 Ra4 g8B Ra6 Nc3 Ra5 Qe2 Qb2 Ne4 Qb3 Bb2+ Kc4 Ke3 Nf5+ Kf4 Na6 b8N Rb5 b7 Nb4 Na6 Rb6 b8R Bg7 Rh6 Be5+ Kg5 Bd6 Bg6 Bg3 Be6 Rc8 Nac5 Rc7 Nb7 Rcc6 Bg2 f1Q Bd7 f2 Nf3 Rc8 Qe3 d2 Ne1 d1N Bh3 Rc5 Rg8 Qg2 e8B f1R Bg4 Nf2 Be2+ Nfd3 Bh8 Nd6 Bgf5 Nb5 Rhg6 Rcc6 Bc3 Rc5 R6g7 Rc8 Rc1 a1B Bc6 Bb2 Ra1 Rc7 Bd4 Bc3 Ra7 Rc8 Qf4 Rc7 Qd6 Rc8 Be5 Rc7 Bf4 Kd4 Be5+ Ke3 Qe7 Nd4 Ned6 Nf4 Ba6 Kf2 Bcb5 Rc4
3rb1NB/3rn1R1/1K4N1/n1qPpk2/1P1r1rR1/3b3Q/N2B1RB1/3BqB2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kd3 e5 Kc4 a5 Kc5 h5 d4 h4 b4 h3 b6 c6 g7 h2 g6 f3 d6 f2 b7 a4 f6 Ke6 d7 a3 f7 a2 f8R Nf6 g8B+ Kf5 g7 Kg6 Nc3 Nd5 Qf3 Qh4 d8B Qg3 Nh3 Bd7 Rg1 h1R Bf6 Be8 Bd2 Rh7 Nf4+ Kf5 Rg2 Ne7 Kb6 c5 Bb3 c4 g8B R1h4 Bd1 Rg7 Bd5 Nbc6 b8N Na5 Ng6+ Rf4 Nc6 Rd8 Rb1 a1R Na2 Qh4 Rg4 c3 Qh3 c2 Bdg2 c1Q d5 Rf7 Bh8 Qc5+ Ka6 Rd4 Rg8 Rf6 Rg7 Rfd6 Rb2 R6d7 Nc3 Ra3 Na2 Rf3 Rc2 Qc3 Kb6 Rff4 Bfe2 f1B Bc4 Bd3 Ba6 Be4 Baf1 Qe1 Rb2 Bd3 Rc2 Ng8 Nce7+ Kf6 Nf5 Qc8 Nh6 Ne7 Ng8+ Kf5 Bc1 Bf7 Rf2 Be8 Bd2 Qc5+
1B1nr2r/K2NpR2/3PR2B/2QqN2q/B2nqBb1/3PN1q1/B4k1b/4R3 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Ke3 c5 f4 h5 g4 c4 Kd4 b3 Kc5 b2 d6 c3 f6 Ke6 g6 h4 f7 h3 f5+ Ke5 g7 Ke4 b6 h2 b7 c2 g5 Bd7 f6 Ra3 g6 Rah3 Nc3+ Kf4 Bb5 Kg3 d3 b1Q Nd5 Qa2 Ne3 Bc8 Nf3 Qe8 Kb6 R8h4 Ne5 Rh7 Re1 h1Q Qh5 Bg4 Ba4 Qad5 Ka7 Nh6 g8N Bg7 f8B Nf5 f7 Rh8 Nf6 Kf2 Nfd7 Nd4 Bd2 Bf6 g7 c1Q g8B Qhe4 Bh6 Qb1 f8R Nbc6+ Ka6 Rg3 b8B Nd8 Ka7 Rg1 Qg5 Qh5 Rf7 Qd1 Qf5+ Qdf3 Bf4 Qg3 Bc1 Rf1 Ra2+ Kg1 Rae2 Bh4 Bh6 Bg5 Bd2 Bf4 Rh7 Qgh2 Ng2 Qc4 Nc6 Qf3 Qc5 Q2h3 Re5 Qe4 Bd5 Qa2 Re6 Bh2 Nce5 Qg3 Bdg5 Qc4 Ne3 Qb3 Qa5 Qb5 Ba2 Qbc6 Qc5 Qcd5 Re2 Rf3 Re1+ Kf2 Rg7 Rff8 Bf4 Rfg8 Rf7 Re8
1RNq2B1/1rR3P1/3QbnB1/1P3qkN/Bb1q3n/5q2/KR1p1q2/RR2N3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Nh6 f6 Ng8 f5 Bf8 Bf4 Qd8 h4 gxf4 g4 a5 g5 Ra6 g6 Ra7 Rh3 Ra6 Qc1 Rd6 Rh1 Rd3 Qd2 Rg3 Qd1 Rg5 hxg5 Ba6 Rh4 Bb7 Rh1 Bc8 Kd2 d5 Kc1 e5 b4 h5 Kb2 h4 c4 h3 g7 Kf7 b6 f3 b7 e4 g6+ Ke8 f7+ Ke7 c6 Kf6 c5 h2 c7 a4 c6 a3+ Ka2 e3 Nh3 e2 Nf4 e1Q Bb5 f2 Ba4 f1Q b5 d4 Nh5+ Kg5 f6 d3 Nd2 Qg3 Nf3+ Kh6 Ne1 Ne7 g8B Nf5 g7 Bb4 f8R Nd7 b8R Nh4 f7 Kg5 Re8 Qe5 f8R Nf6 Rf7 Qef5 Re2 Q1f2 Rb2 Rh6 Rf1 h1Q Re7 Bd7 c8B Qhf3 c7 Rg6 Bb7 Be6+ Bd5 Rh6 c8N Rh8 Rc7 d2 Qc1 Rh6 Qc5 Rh8 Bh7 Rf8 Qd6 Rf7 Bg6 Rd7 Rcc1 Rb7 Rab1 Ng4 Rc7 Nf6 Ka1 a2 Bdb3 Bd7 Bg8 Be6 Rbc2 Kg4 Ng2 Ne8 Rb3 Rb6 Rd1 Kg5 Ne1 Rb7 Ra3 Qc6 Rb1 Nf6 Kb2 Nd5 Kb3 a1Q Raa2 Qae5 Rcb2 Qed4 Raa1 Qcc3+ Ka2 Qcf3 Bd1 Nf6+ Bb3 Bd7 Ba4 Be6+
B2Rqn2/1b1N2NR/5q2/pk3BPq/3nbP2/qNR5/4nrQR/1R4BK w - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 f5 e3 f4 Be2 f3 Bd3 Na6 Bf1 Nb8 Na3 e5 Qb3 a5 Nb1 e4 Qc2 Bh6 Qd1 Bf4 exf4 e3 Qc2 e2 Qd1 Ra6 Nc3 Re6 Nb1 Re3 fxe3 Bh3 Kf2 Bc8 d4 Kd7 g4 e1N b4 c5 g5 h5 b6 c4 b7 h3 d6 Kc6 d5+ Kb5 d7 h4 e4 h2 e5 h3 e6 Qc7 d8R Ka6 e7 Nc2 e8B Rh4 d6 Ne3 b5+ Kb6 d7 c3 Ra2 c2 Bg2 Rh8 Qf1 Rh7 Nd2 Qe5 Ne2 Nc6 b8R+ Bb7 Nb3 Qf6 Ned4 Nf5 Rdc8 Nge7 d8R Ng3 Bd7 Ne2 Ne6 Ng6 Ng7 Nf8 Bf5 Ncd4 Be3 c1Q Rc3 Qa3 Qg1 Rh4 Kf1 f2 Rd2 Ka7 b6+ Ka6 Bd5 Rh5 Qg2 Kb5 Bf3 Be4 b7 Rh7 Rd7 Rh8 Rbd8 Rh5 Rg1 h1B b8N h2 Rf7 Bb7 Nd7 Rh3 B3e4 Rf3 Rdc2 Ba6 Ba8 Bb7 Rd2 Ba6 Ne8 Bb7 Qg3 Nc1 Qh3 Rg3 Rb2 Bhd5 Re7 h1Q Rh7 Rg2 Ng7 Bdc6 Qg4 Qh5 Rb1 Qe8 Rgh1 Nce2 R1h2 Be4 Qh3 Rg3 Qg4 Rf3 Kg2 Ng3 R2h6 f1Q+ Kh2 Qfc1 Bg1 Qd1 Qh3 Rf1 Qg2 Rf2 Rh5 Qg4 Rh3 Nge2 Kh1 Qf3 Rh2 Qfh5
1b3NN1/1P2q1B1/4rBrB/n1krR1r1/3N1q2/4NQp1/1P1NbRR1/1K1q4 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 h5 f5 Bd7 g5 Bc6 Be2 Bd7 Bf3 Bc8 Bg4 hxg4 f7+ Kd7 Qe2 Kd6 Qf3 Nd7 Qd1 Ndf6 gxf6 Kd7 d4 Kd6 Kd2 a5 Kc2 c5 h4 e5 h5 g5 b6 a4 b7 a3 h6 a2 h7 c4 Rh2 g3 Rg2 c3 Qf3 g4 Nd2 e4 Nf1 Qb6 Bh6 e3 Re1 e2 Ne3 Be7 f8R a1R f7 Qb4 f6 R1a5 Kb1 R8a6 Bg7 Bd8 Bh6 Ne7 Bg7 Rg8 h8B Kc7 d6+ Kb6 d7 Nc6 d5 Kc5 d6 Bc7 d8N Qf4 d7 Bb8 Bh6 Rb5 B8g7 Na5 Nc6 Rab6 Nd4 Re6 d8N Bd7 Bh8 Rg6 N8c6 Bc8 Ne7 c2+ Ka2 c1Q Ng8 Qd2 Kb1 Qb4 Rd8 Rg5 f8N Qd2 Rf2 g2 f7 Qb4 B8g7 g3 Re8 Reg6 Bf6 Bg4 Rd1 Rd5 Re5 e1R Bhg7 Re2 Rd2 Re1+ Qd1 Re2 Ngf3 g1Q Rg2 Re1 Rdf2 Qh1 Nd2 Be2 Bh6 Qh5 Bhg7 Qhg4 Nh7 Qd7 f8B+ Qe7 Bh6 Qa4 B8g7 Qb3 Nf8 Qc2+ Ka2 Qc1 Qb3 Qd1 Qd3 Rb6 Qe4 Re6 Qf3 Rh1 Bhg5 Rh5 B5h6 Qb3+ Ka1 Rhg5 Kb1 Qd1+
6k1/pbRP4/bPR1bbq1/Nn2rBRN/2QB1BB1/8/NB2q2q/1n2K3 w - - 0 1 illegal: No possible last move, all moves rejected
1n1q3r/2N1R3/B3R3/2qp1kBB/1P2bN1b/1bPQ2bN/1K3N1q/2Nq3R w - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Kd6 g5 a5 Bc4 Ra6 Be2 Kc7 Bf1 Rf6 gxf6 Kd6 h3 g5 Be2 Nc6 Bf1 Ne5 h4 g4 Kd2 Nf3+ Ke2 Ng5 hxg5 Qc7 Ke1 Qd8 Kd2 Ke5 b4 d5 c3 h5 Kc2 h4 b6 a4 b7 g3 b8N h3 g6 h2 g7 a3 Ba6 a2 Bg5 d3+ Kb2 d2 Ne2 e6 Nc1 Nh6 g8B Bd6 f8R g2 f7 g1Q f6 Qc5 Re8 Ng4 f8N Kf5 f7 e5 Ne6 e4 f8N e3 Ng6 e2 Bf7 e1B Ngf4 Ne5 Nh3 Bh4 Nef4 Nd7 Bh5 Be5 Re1 h1Q Re6 Qh2 Re7 Bc7 R1e6 Bd6 Qf1 d1B+ Nd2 Bb3 Qe2 Bc7 Ne4 Be5 Nef2 Bc7 Nc6 Nb8 Na7 Bd7 Qf1 Bb5 Qd1 Bd3 Nb5 Be4 Qd3 Be5 Nc7 Bd6 Nfe2 Bdg3 Rb1 Bc4 Nef4 a1Q+ Kc2 Qa4+ Kb2 Bb3 Na2 Bc4 Rh1 Qd1 Nc1 Bb3
RNkb1q1K/q3Q3/1P1q1b2/R1pr3R/R2PnB1B/1b3bRN/Nq6/3B4 w - - 0 1 illegal: No possible last move
1N1rRBk1/n1qqP3/BQ3n2/2B1q1N1/6Np/PR3R2/q3qr1K/1N2q2N w - - 0 1 illegal: No possible last move
B1k1b1Qq/Rn1NBK2/1BP3rp/N1b1Bp1r/bP1R1B2/8/1b1RN3/7n w - - 0 1 illegal: No possible last move
2q1rb2/R2Q3N/R2B2kq/3B4/R2R4/P1rnP2p/4RbpN/BKrb1N2 w - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 h4 d5 cxd5 e5 fxe5 Nc6 b3 Nd4 b4 axb4 gxf5 g4 Nc3 Ne6 Nb1 Ng5 hxg5 Qe7 Rh6 Qd6 Rh1 Qd8 d4 Kf7 Kd2 c5 Kc2 h5 g6+ Kg7 d6 b5 d5 c4 d7 h4 e6 h3 e7 g3 e8R g2 d6 c3 Bf4 Ra3 Nf3 Ne7 f6+ Kg8 g7 Kf7 g8R Qc7 d8R Bg4 d7 Nd5 Nh2 Qc8 Bd6 Nf4 Rg6 Nd3 Nd2 b3+ Kb1 b2 e3 b4 Re4 Bf3 Qa4 Bd1 Be2 Rg8 Bf3 Rb3 Rh6 Ra3 Rh7+ Kg6 f7 Rh8 Re1 Rb3 a3 Rg8 Re2 c2+ Ka2 c1B Kb1 Rc3 Ndf1 Rh8 Rd4 Rc2 Bd5 Bd2 Re8 Rg8 d8B Be1 Bf6 Bf2 Re6 Rh8 Qd7 Rc3 Ka2 b1R Rhh4 Rbc1 Rb1 Rg8 Rb3 R1c2+ Kb1 Rh8 Rb2 b3 Ra4 Bh6 Rhd4 Re8 Ra7 Bf8 Rda4 Kh5 Ree4 Kg6 Red4 Rc6 R7a6 R2c3 Rbd2 b2 Ra7 Rc2 R4a6 R6c3 Rda4 Nb4 Rd4 Nd3 Bh8 Rc7 Bf4+ Bd6 f8N+ Kh5 Nh7 Bf8 Re4 R7c6 Ka2 R6c5 Kb3 b1Q+ Bb2 Qa1 Bd6 Rc7 Bh8 Qg7 Reb4 Qh6 Ba1 Kg6 Rd4 R2c5+ Ka2 Rc2+ Kb1 R7c5 Qc7 R5c3 Qd7 Rc1+
B1Bq2r1/r2NqQ1R/1P1kP1Kp/N2B4/B1n3b1/1pB1Nr1b/8/2rR1R2 w - - 0 1 legal: proof: h4 d5 f4 b5 c4 g5 hxg5 e5 cxd5 exf4 a3 b4 Nc3 a5 Rh6 a4 Nb1 Nc6 Rh5 Na7 Rh1 Nb5 Qc2 b3 Qd1 Bb4 axb4 a3 Rh2 a2 Rh1 Na3 bxa3 Ra4 Nc3 Ra7 Nb1 Ra8 Kf2 Ke7 Kf3 f5 g4 c5 e4 c4 d4 c3 b5 c2 e5 Kd7 a4 Qb6 g6 Nh6 g7 Ra7 g8B Qf6 b6 Qe7 a5 Qa3 a6 Qb2 g5 Nf7 d6 Nh6 g6 Qa3 g7 Qa5 d5 Rb7 a7 Qd2 a8B Nf7 Bb5+ Kd8 d7 Ke7 d8N Qd4 Na3 Qb4 Nc6+ Kd7 d6 Qa4 Qf1 Qc4 Ba4 Qa6 Bd2 c1R Nc4 Ra7 Ne3 Qd3 Bc3 h6 Na5+ Ke6 d7 Qd4 Bh7 Nd6 d8R Rg8 Rd7 Nc4 Rb1 a1Q Qf2 Re1 Rd1 Qa3 Bg6 Qf8 Bh5 Qdc5 Bg4 Qd8 Rf7 Qce7 Bh3 Re8 g8B Rf8 Rd4 Rc1 Rd1 Re8 Rh7+ Qf7 Kg2 f3+ Kg3 Rf8 Qf1 f2 Nf3 Ke7 Kh4 f4 Rg1 Bg4 Rh1 Qg7 Bgd5 Rg8 Rg1 Bh5 Bf5 Bg4 Bc8 Qf7 e6 Kd6+ Bf6 Qfc7 Ne5 Qce7 Nd7 f3 Rh1 Bh3 Kh5 Bf5 Qe1 f1B Bc3 B1h3 Rf1 f2 Qd2 Rc2 Qd4 Rc1 Qg7 Bfg4+ Kg6 Ra6 Rh1 f1R Rg1 Rf3 Rgf1 Rh8 Qg8 Ra7 Qf7 Rg8+
2r2R2/1K3Rp1/2np2B1/1k2B1n1/2n2BqB/2Rq2nN/bP2BPN1/2N2bQ1 w - - 0 1 illegal: No proof kernel
Q3NR1r/1pn5/3P1qB1/N2Np3/1NqBB1PK/k1b5/rr1n3R/3r1RN1 w - - 0 1 illegal: No possible last move
1q2r3/1R1B1q2/2Bk1rRB/P1p2rp1/1p2Q2P/bNn5/2qB2N1/1R3BKN w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 g5 cxd5 e5 fxe5 Nf6 h5 Ng8 g3 Bf5 Qc2 Bg6 hxg6 h5 Qd1 h4 Na3 h3 Qa4+ Nc6 Qd1 Nce7 Nb1 Nf5 Kf2 Nf6 Ke1 Nh4 gxh4 Ng8 Kf2 Kd7 e4 f5 d4 b5 a4 c5 g7 f4 d6 h2 d5 b3 a5 b2 e6+ Ke8 e7 Kd7 e8B+ Kc8 d7+ Kc7 d6+ Kc6 e5 f3 e6 Ra6 e7 Ra8 Qa4 Qc7 d8B+ Kd5 d7 Qa7 Nd2 b1Q Nb3 Qg6 Bd2 Qf5 Rb1 Qc2 Ne2 Qb6 Ng3 Qb8 Qe4+ Kd6 Rg1 Rh7 Nh1 Nf6 g8R Rh6 Rg6 Bg7 Rg4 b4 Rf4 Qc4 Rf5 Qe6 Rf4 Nd5 Rf7 Bb2 Bc7+ Kc6 Be5 Ba3 Bg7 Kd6 d8N Nc3 Bc6 Qf6 e8B Qe6 Ng3 h1Q Rb7 Qf6 Ne6 Qf7 Bed7 Qg2+ Ke3 f2 Nh1 Rh8 Bh6 Re8 Nf4+ Re6 Bd3 f1R Bdb5 Qh2 Ng2 Rf5 Bf1 Ref6 Nf4 Qh3+ Kf2 Qd3 Kg1 Qc2 Ng2 Qc7 Re1 Re8 Rb1 Qb8
3N2kq/3N2p1/br1p2B1/B1R3BQ/2R4P/2rNBbR1/p1B1K1Pr/3r2b1 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Na6 Ra3 Nc5 Ra6 Rb8 Ra1 Ra8 Bg5 h5 Bd3 h4 Bc1 Ne4 Bf1 Ng3 hxg3 h3 Bf4 Nh6 Qe2 Ng4 Bc1 Ne5 Qg4 Ng6 Qd1 Nh4 gxh4 Ba6 Kd2 Bb7 Ke1 Bc8 c4 Kf7 f4 e5 b4 a5 f6 d6 c5 e4 b6 e3 c6 e2 c7 h2 f5 d3 b7 a4 b8B a3 b5 a2 b6 Rh5 b7 Ra6 Be3 Qd7 Nf3 Rh6 Nc3 Ra4 Ne5+ Kg8 f7+ Kh7 f6 Ra5 Nd5 Rg6 Nc6 Qh3 Rc1 Ra4 Nd8 Qf3 Rc5 Qf4 Nb4 Bg4 c8B Qe4 Bc7 Ra6 b8R Rb6 Bf5 Qa8 Rc8 Be7 f8B Bf3 f7 Bg5 Be7 d2+ Kf2 e1R f8N+ Kg8 B1d3 Bf6 Nd7 Rg3 Bc2 Bd4 Bg5 Rh3 Rf1 h1R Bg6 R1h2 Nd3 Qb8 Qe2 d1B Rc4 Bb7 Qh5 Bdf3 Rh1 Rd1 Rc5 Rbb1 Ba5 Rb6 Rc4 Ba6 R8c5 Be4 Ke2 Qc8 Bc1 Be3 Rf1 Bg1 Rf4 Rg3 Rg4 Rf3 Rg3 Qb8 Ne1 Rc3 Bce3 Bf3+ Kf1 Qa8 Nf7 Qf8 Nd8 Qe8 Bge4 Qe6 Bed3 Ba8 Ke2 Qh6 Bg6 Qh8 Nd3 Bf3+
k1BnRK2/4R1RB/2n5/pQBpb3/2R4p/2b3P1/rPNpN3/Nq3Rb1 w - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Kd6 Be2 g5 Bf1 a5 Qf3 Ra6 Qd3 Rc6 Qe2 Rc3 Qd1 Rg3 Qd2 Bb7 Qd1 Be4 f6 Bf5 gxf5 g4 Ne2 Rf3 Ng1 g3 Qe2 g2 Qd1 Rg3 hxg3 Bh6 Bg5 Bg7 Bc1 Bf8 Kd2 Kc7 Kd3 Kb7 Kc4 h5 Kc5 d5 c4 h4 b6 d3 Qe2 Qd7 Ra4 Qd8 Nd2 Ka8 b7+ Ka7 Nb3 Nh6 Be3 d2 Na1 Bg7 f8R e5 f7 e4 f6 Nf5 Rg8 Qd7 f8R Qd8 f7 Be5 Re8 Rh5 f8N Nd4 Ne6 Nf5 Re7 Nc6 b8R+ Qc7 Rgg7 Rg5 Nd4 Nd6 Ndc2 Bc3 Rbe8 Rg4 Qd3 Qd7 Ne2 g1B Bh3 Rf4 Bf5 Nf7 Bh7 Nfd8 Rb4 Qb7 Kd6+ Ka8 Bc5 e3 Ra4 Qb3 Rb4 Qa2 Ra4 Bh2 Rf1 Bg1 Kd7 Be5 Qb3 Rg4 Qb5 Re4 Ba3 Bc3 c5 Qb1 Rc4 Rf4 Rf8 Rd4 Ke8 Rd3 Rh8 Be5 Bb4 Ra3 Kf8 Ra2 Rhg8 Na7 c6 Bc3 c7 Nac6 Nc1 e2 c8B e1B Bc5 Bef2 Ne2 Be3 Re8 Bef2 Rge7 Bfd4 Rgg7 Be5
Bb1B1N1q/kn1n2q1/r1bN4/nBP1n2r/4N2K/1Pb3R1/nB4B1/2RR2Q1 w - - 0 1 illegal: No possible last move, all moves rejected
RRq1rbrb/5Rb1/q4P1R/R4N2/2q1n3/1bPN1nB1/KN2B1b1/1Q3Bk1 w - - 0 1 illegal: No possible last move, all moves rejected
r3BRK1/4R1N1/1k4B1/qr2Nn2/3P1bNn/1N6/nNQnPBb1/1R2nnn1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Kg4 c5 Kh5 Kc7 b4 f5 g4 c4 d4 f3 g6 h6 b6+ Kb7 d6 f2 b5 f4 d7 c3 g5 a4 g7 f3 Kg6 h5 Kf7 c2 g6 a3 Nc3 a2 Rb1 a1N Bh3 f1N Be3 c1N Qc2 h4 Na4 f2 Nb2 Ra3 Nf3 Be7 Bf5 h3 Nd2 h2 Nb3 Bg5 Bd3 Ne7 g8N Ra7 g7 Ng6 Nf6 Na2 g8B Nc6 Ng4 Nh4 Bg6 Nd2 Kg7 f1N B8f7 Rh6 Be8 Bf4 Kg8 Ne5 Bf2 Rh5 Rg1 h1N Rg2 Kb8 b7 Qa5 d8N Nef3 Ne6 Ng1 Ng7 Ra8 Rg3 Ka7 b8N Bf5 Nc6+ Kb6 Nce5 Be4 Re3 Bg2 Re4 Nhg3 Re3 Kb7 b6 Ngf5 Re4 Ka6 b7 Kb6 b8R+ Ka7 Rd8 Kb6 Ned3 Rg5 Re7 Rh5 Nde5 Rg5 Qd3 Nc2 Rc8 Ne1 Qc2 Qb5 Bc6 Qa5 Rf8 Rh5 Bce8 Nd6 Nc6 Rb5 Nce5 Ndf5
B1bBbkB1/bNRr3K/1P1b2n1/3b3B/qQ2bNn1/2r5/bR2P3/3N2BR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 Kd3 d5 g4 h5 b4 f5 c4 a4 c5 h4 e6 a3 g6 h3 e7 h2 c6 f4 g5 a2 b6 f3 b7 f2 c7 Bh6 g7 Nd7 b8B Ra7 g6 Ngf6 g8R+ Bf8 g7 Rh3+ Be3 Ng4 Bg2 f1B b5 Rb7 Bf3 Bg2 Qd2 Ra7 Qb4 Nde5+ Kd2 d3 b6 d4 Ba8 Qd7 Nc3 Bd5 Nd1 Ng6 Rb1 a1B Rb2 Qa4 Bf2 Rf3 Nh3 Kf7 e8N Bd6 Nf4 Ba2 Rh8 Re3 g8B+ Kf8 Rh7 Rg3 Rf1 h1B Bg1 Bhd5 Rh1 Ba6 c8B Rd7 Bcb7 Rh3 Bc6 Bc8 Bc7 Be4 Bd8 Rf3 Qc3 Bb8 Nd6 Ba7 Qb4 Rh3 Rf3 Bad5 Ke1 d2+ Kf1 Ba2 Rc3 d3 Bb5 Re3 Rc7 Rf3+ Kg2 Bad5 Rb1 Be5 Nb7+ Bd6 Rb2 Ba2 Bbc4 Bd5 Bb3 Be4 Bbf7 Bed5 Nf2 d1B Be8 B1b3 Nd1 d2 Bef7 Bc2 Be8 Rf1+ Kg3 Bce4 Bef7 N6e5 Kh4 Rf3 Kg5 Rc3 Bh5 Ng6 Ne3 Bg2 Kf5 d1B Kg5 B1b3 Nd1 Bf7 Kf5 Be8 Kg5 Bc4 Kf5 Be4+ Kg5 N4e5 Kh6 Bcf7 Kh7 Ng4 Rc6 Bad5 Rc5 Ba2 Rc7 Bfd5+
5B2/rP1B3b/1BBb1N2/r2q1q2/2R2qnR/NB1QP1Nb/1k5K/n2nn2R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 Kd6 g4 Ke5 Kg2 Kd4 d6 a5 d7 c5 d3 f5 b6 h5 g6 a4 b7 c4 g5 a3 g7 c3 b5 c2 b6 h4 g6 f3+ Kh3 f2 Kh2 h3 Bh6 c1Q Bg2 f1Q Bc6 a2 Na3 Kc3 d4 f4 d5 f3 d6 f2 Qd3+ Kb2 e3 Ra7 Ne2 Qb1 Ng3 Na6 b8N Nf6 g8B Nb4 b7 Nc2 g7 Ne1 Bb3 Qa5 d8R Qd5 g8B Bf5 d7 Bh7 Qb5 Bd6 Bf8 Qbf5 Rc1 a1N Be6 Qfc4 Rc8 f1B d8B Qcf4 Bed7 Ra5 Rc4 Ng4+ Kg1 Rg8 Bb6 Ra7 Re8 Rg5 Ree4 Qde5 Rcd4 Nf6 Qc4 Qh4 Qa6 Rg4 Bde6 Qd5 Nd7 Qh6 Rf4 Qh4 Qd3 h2+ Kf2 Qhg5 Rg1 Bh3 Rf1 h1N+ Kg1 Qh4 Kh2 Nf2 Rh1 Nd1 Rb4 Ne4 Nf6 Nef2 Ra4 Qhg5 Rfb4 Rc4 Bed7 Rc5 Rd4 Rca5 Rh4 Qgf4 Rc4 Ng4+
1bb3BB/1k4B1/2R1qr2/3Nb1PP/K1b2bRn/N4NQB/R4q1r/nb4B1 w - - 0 1 illegal: No proof kernel
4K1B1/n5Q1/1rrb1qP1/N2b1BBb/2NRrR1b/n1N3P1/B3nnk1/1R1B4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 h5 b4 f5+ Kf4 d5 e4 h4 g6 d3 b6 d4 c5 h3 g3 h2 b7 d2 c6 a4 b5 d3 b6 a3 c7 a2 Nf3 Nh6 Nc3 Nf7 Be2 Ra6 Rf1 h1N Rb1 Nc6 b8N a1B b7 Na7 Nc6 Nf2 b8R Qf6 Na5 Bb7 Rd8 Rc6 Rd4 Nd6 Qb3+ Nc4 Bd1 Rh7 Qb2 Na3 c8B+ Rd7 Rc4 Bd6 Rd4 Ba8 Qb7 Rb6 Qc7 Bd5 Qb7 Qg7 Kg5 f4 Qc7 Qf6+ Kh6 Ke7 e6 Rc6 Ne5 f3 Qb7 Rb6 Kh7 Rc7 Kg8 Bb2 Bd7 Rcc6 Nec4 Ba1 e5 Bb2 Bb3 d1B Bg5 d2 Ba2 Be2 Qc7 d1N Qb7 Nd3 Qc7 f2 Qb7 Bh5 Bc8+ Kd8 Qg7 Nc1 Bd7 Ne2 Bc8 Bg2 e7+ Kc7 e6 Bd5 Bd7 Bc1 e8B Bcf4 Bf7 Be7 Rh1 f1R Rh4 Bfd6 Rhf4 Re1 Bc8 Bd8 e7 Nf2 Kf8 Be5 Ne3 Kd6 e8B Kc5 Bed7 Bd6+ Ke8 B8e7 Bg8 Bd8 Rdb4 B8e7 Nec4 Bd8 Ne4+ Kd4 Bg4 Kd3 Bcf5 B8e7 Nb2+ Ke3 Rd4 Bd8 Nc3 B8e7 Bc2 Bd8 Bgf5 B8e7 Rg4+ Kf3 Nbc4 Kg2 Bcb3 Rd1 Rdf4 Rd4 Bd1 Re4 Rh4 Re5 Rd4 Re4 Rf4 Qe5 Bh6 Bf6+ Bge6 Bh4 Bg5 Be7 Bf7 Qf6 Bg8 Bd6+
4b3/1P1Nr2K/rNPn1NnN/2b5/3B2B1/2QR1B1q/3NbrR1/r2nkb1R w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 c4 h5 f4 h4 b4 d3 g4 h3 c5 h2 f6 Ke6 f7 a4 f5+ Ke7 g6 Kf6 g5+ Kg7 c6 d2 b6 a3 b5 a2 b7 d6 b6 Nh6 Bg2 Ra6 Ne2 Nd7 Qe1 d1B Nd4 Be2 b8N Qe7 b7 Qe6 Rg1 h1B Bf3 Bg2 Be3 Bgf1 Nd2 Rh7 Rd1 a1R Rg2 Be7 f8R Nf7 Bg1 Rh2 Rh8 Nf8 Nd7 Qb3 Bg4 Qh3 Nb6 Bd7 Qg3 Be8 Qc3 Qg3 Rh3 Qh4 Rd3 Qh3 Rgg3 Rf2 f6+ Kh8 g7+ Kh7 g8B+ Kg6 Nf5 d5+ Ke3 d4+ Ke4 Bd6 Rg2 Bc5 Nh6 Nd6+ Kd5 e4 Ke5 e3 Bd5 Bf3 f7 e2 Rc1 e1R+ Kf4 Bd1+ Bdf3 Re7 Rb1 Kg7 g6 Kf6 g7 Bde2 g8N+ Kg6 Re3 d3 Nf6 Rd7 Ke5 Kg5 Re1 Kh4 Rd1 Nb5 Kf5 Ng6 f8N Rg7 N8d7 Re7 Nde4 d2 Rd3 R6a3 Re1 d1N Nd2 Ra6 Rh2 Rg2 Bd4 Kg3 Rh1 Nd6+ Kg5 Ne3 Rc1 Kf2 Rc2 Ke1 Ra2 Nh8 Rc2 Rf2 Rb2 Nhf7+ Kg6 Nd1 Kh7 Re3 Rg1 Ne5 Rg2 Ng6 Rb5 Bb4 Rh5 Bc5 Rh4 Qg3 Rhh2 Qh3 Rh1 Re7+
R2q1rn1/Q5rb/2rR2B1/1Pb5/N2N3r/2qNB1N1/1qnRP1kB/1q2K1N1 w - - 0 1 illegal: No possible last move
b1q2b2/RnR2n1N/1Pb1B1kB/KNb4q/1RQ5/N5N1/nP1r4/4NrnB w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 d4 h5 Kd2 e5 Kc3 a5 g4 c5 b6 c4 g5 h3 f6 h4 g6+ Ke8 f5 a4 d6 h2 Kb4 c3 d5 c2 g7 Kf7 Qd4 a3 Bg2 e4 Qc4 e3 Nf3 h3 Ne1 a2 Na3 e2 Bh6 Na6+ Ka5 c1B d7 Bb7 d6+ Bd5 Bf3 Qc8 d8R Be3 d7 Bec5 Re8 Rb8 Re4 Nb4 Rf1 Rb7 Bh1 Rb8 Rc1 a1N Ref4 Na2 d8N+ Ke8 R1f2 Ba8 Ne6 Kf7 Rf1 Rb7 Rc2 Rd7 Nc7+ Rd5 Ncb5 Rh7 R1f3 Bc6 Rb3 Ba8 Rb4 Nb3+ Ka4 Na5 Rc3 Ke8 f7+ Ke7 Re4+ Kf6 Re7 Rd2 Ra7 Nb7 Rc2 Ne7 g8B Ng6 Rc1 Nh8 Rc3 Rg7 Rc2 Rg1 Rc3 Bfd6 f8N Nf7 Ne6 Rf1 Nf4 Bf8 Rc2 Ng5 Be6 Nf7 Bc6 h1Q Nh5+ Ke5 f6 h2 Bcd5 Qf3 Bc6 h1B Ng3 Qh5 Be4 Nfd6 f7 Kf6 B4d5 Kg6 Rc1 Bf3 Rc2 Bg4 Bh1 Bf3 Nd3 e1N Rc1 Nd8 Ka5 Bfc6 Rc2 Nf3 Ne1 Ng1 Rc1 Bg7 f8N+ Kf6 Rb7 N6f7 Nh7+ Kg6 Ra7 Bgf8 Rd1 Re2 Rdd7 Rd2 Rdc7 Nb7+
q5N1/N1RRq1n1/1Q3b1N/n2B1R1K/6Bn/2rbp1B1/1NP1brP1/1r2kN2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 h5 b4 a5 f6 Ke6 f7 Kf5 g6 e5 b6 d5 b5 d3 b7 h4 b6 d4 g7 a4 Ne2 a3 Nd2 a2 Nf4 h3 Be2 h2 Qg1 Qh4 Nf1 d2 Nd3 d1N Bf4 Qg5 Bg3 Ne7 g8B Bg7 f8R+ Bf6 Bd5 Nbc6 b8N Ba6 b7 Ng6 Nd7 Rh3 b8N Na5 Nc6 Ne3 Rd1 a1Q Nb2 d3 Na7 d2 Rc8 Bd3 Rc7 Bg7 Nf6 Rf8 Ng8 Qe7 Nh6+ Kg5+ Bf7 Nf5 Bd5 Qa2 Rb1 d1B Rd7 Kf6 Kg4 e4 f4 Ngh4 Kh5 Qa1 Bf3 B1e2 Bg4 Qa4 Rc1 Qc6 Ra1 Qa8 Ra3 Bh8 Rc3 Rf7 Qe3 Bg7 Rg1 h1R Rcc7 Rf8 Nd2 Bh8 Rf1 Rf7 Rf2 Rb1 Nf1 Rf8 Bh2 Rf3 Bg3 Rc8 Qc5 e3 Qc6+ Nd6 Qb7 Ne8 f5 Rf4 Qb6+ Ke5 f6 Bg7 f7 Bf6 Qc6 Kd4 f8N Rf3 Nh7 Rf4 Bc4+ Kc3 Qb6 Rf3 Rb7 Rf4 Bd5 Rcc4 Rbc7 Rf3 Nh2 Kd2 Nf1+ Ke1 Rc6 Bd4 Rcc7 Rc3 Nf6 Be5 Nfg8 Bf6 Bd6 Rh3 Rf4 Rf3 Rf5 Rf2 Bg3 Ng7#
1RqK3B/R4BNR/4r1r1/Nqbb4/1nn2N1r/1b1PQ3/4RpP1/1k2qB1R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 b6 f5 g6 c5 d6 h5 b7 h4 g7 a4 d7 h3 Ke6 c4 e5 f3 b3 a3 Rh2 f4 Ne2 a2 Qc2 f2 Qb2 c3 Kf7 f3 e6 c2 e7 Nc6 b8R+ Bb7 e8N Nge7 g8B Qc8 d8R Ra6 Na3 Na5 Qe5 Rh4 Bb2 c1R Ra8 Re1 Ra7 Nec6 Nc4 Bc5 Nf4 Ba8 Rd1 a1Q Ng7 Qa4 Ke8 Qb5 Bf7 Re4 Rh1 h2 Re1 Bb7 Qe7 Re6 Re2 Rg6 Qe3 Ba8 Nd6 Nc4 Nb7 Rb6 Na5 Bb7 Bc3+ Ka3 b4 Ka2 Bb2 Kb1 Bd4 Qa4 b5 Nb4 Bf6 Bd5 Bc3 Rbc6 b6 Qb5 b7 Rcd6+ Ke7 Rb6+ Rd6 Rc6 Rg1 h1Q b8R Qhh3 Rh1 Qg3 Nge6 Ra6 Bh8 Rb6 Nh5 Qe5 Ng7 Qc3 Nf4 Qc1 Nc6 Qe1 Na5 Rg5 Qe5 Rc6 Re3 Rg3 Be2 f1B d3 f2 Qd4 Bb6 Rh6 Rgg6 Rh7 Rcd6 Qe5 Bc5 Qe6 Qcc6 Qe4 Rde6+ Kd8 Qca6 Bg4 Be2 Qd4 Bd1 Be2 Rb6 Bf1 Bb3 Re2 Rbe6 Qe3 Qc8+
4b2k/1qr1R2N/B3B3/B5K1/1qr1qp2/RQPR3R/1N3Prn/N1bn1bR1 w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 a5 Ke3 d5 Kf4 f5 g4 Kf7 e4 Kg7 b6 h5 b7 d4 g5 a4 c3 h3 g6 a3 e6 h2 e7 a2 e8B d3 e5 h4 c6 d2 c7 h3 e6 Nh6 e7 Ra4+ Kg5 f4 Nf3 Ng4 Beb5 Qd6 e8R Nd7 b8R Rg8 Qb3 d1B Ba3 Nc5 Ba6 Rc4 Re7+ Kh8 Bb4 Bd7 c8N Be2 Nbd2 Nd3 Ba5 Be8 Nb6 Nb2 Na4 Nd1 Nb2 Qb4 Rd8 Bd3 Bg2 Bf1 Rd3 Rc7 Rg1 h1Q g7+ Kh7 Nd4 h2 Bd5 Qe4 N2f3 h1Q Be6 Qeb7 Nc2 Qg2 Rb1 a1R Rc1 Ra4 Ra1 Qh1 Ra3 Qg2 Na1 Qh1 Nh2 Qhc6 Nf3 Qce4 Rf7 Bc5 Re7 Be3 Rg3 Bc1 Rg1 Rf8 g8R+ Rf7 Rg6 Kh8 Rh6+ Rh7 Rh3 Rh6 Rhg3 Rh2 Rh3+ Bh5 Kh4 Rg2 Ng5 Be8 Nh7 Q4b6 Rd2 Rac4 Kg5 Qb4 Rdd3 Nh2+
Q2NK3/4r3/1R2n3/P1bB3B/1N2Bp2/2n2br1/PBqBNRrk/qRn1b3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 b4 Bg7 bxa5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 h5 e4 b5 g4 c5+ Kc3 Ke5 g6 c4 g5 f3 g7 Kf4 Kd4 Kg3 Ke5 f2 d4 b4 d6 b3 g6 h4 d7 c3 Ke6 c2 Kf7 h3 e5 h2 e6 f4 d5 b2 d6 Bb7 e7 Nc6 e8B Rh7 Qd5 Nf6 Na3 b1N Bg2 f1R Bd2 c1B Nc2 Ne4 Nb4 Qc8 d8N Nec3 d7 Bc5 Be4 Rf3 Ne2+ Kg2 Rf1 Nd4 Qc6 h1Q Rf2+ Kh3 Qa6 Ne6 Qa7 Bd5 Qb7 Ra7 Qa8 Rh6 g8R Rg3 g7 Rhg6 Rf8 Rg2 g8B R6g3 Beh7 Bf3 Be4 Bb6 Ke7 Kh2 Bh5 Bc5+ Ke8 Qc7 Rf6 Rb7 Be3 Nd2 Rb1 Nb3 Bd2 Bb2 Rh6 Nc1 Rg6 Qc6 Rf6 Qa4 Rh6 Qc2 Bgf7 Ng5 Bfd5 Ba1 Rb6 Ne6 Ndc6 Bb2 d8B Rh7 Bf6 Ba3 Na6 Bab4 Nd8 Nb5 Be3 Nb3 Rb2 Qa1 Rb1 Nc1 Bb2 Be1 Nb4 Nc3 Bd2 Re7#
RbqB1N1K/4P3/1bbn4/p3qrB1/3P1r2/R2rNq2/RR4Bk/1NQ3Rn w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 h4 g5 d3 c4 h6 g4 b6 c3 h7 g3 b7 g2 b5 c2 b6 f3 h5 f2 h6 Qc7 Nh3 g1B Bg5 c1Q Ra2 Bd7 Bg2 f1Q Nf4 Nc6 b8R Nd8 b7 Bb6 Rg1 Bc6 Kf5 Ne7+ Kf6 Qf3 e4 Nf5 d4 Ng3 Rc8 Nh1 b8R Nb7 e5+ Kd7 Qe1 Bd6 Kg7 f5 Qd1 Rf8 h8R Qce3 Re8 Qc8 h7 Bdc7 Qe1 Nd6 Qc1 Rf6 Rb7 Rb8 Rhf8 Qee4 h8N Qe1 Rd8+ Ke7 e6 Qe5 Ra7 Rb7 Ra8 Bb8 Kh7 B6c7 Rg8 Rb3 Rg6 Rc3 Rh6 Ra3 Rh3 Bb6 Rg8 Rd3 Rg7+ Kd8 e7+ Kd7 Nhg6 Rf8 Nh4 Rf6 Nfg6 f4 Nf5 Rf7 Ne3 Rf5 Nc3 Qg4 Nb1 f3 Rb2 f2 Rg3 f1R Nf8+ Kc7 Kh8 R1f4 Rf3 Qg3 Rff2 Qf3 Ra2 Ne8 Rfb2 Kd6 Ng6 Kd7 d6 Ke6 d7 Nd6+ d8B Qfd5 Nc2 Qf3 Nf8+ Kd5 Ne3+ Ke4 Bf1 Qg2 Ra3 Kf3 Rba2 Qg4 Bg2+ Kg3 Rb2 Qd5 Rg6 Kh2 Re6 Qd1 Re5 Qde6 Rba2 Qf3 Rb5 Qee4 Rbb2 Qe5+
2q1b1N1/R1r1P1KR/2BB1pb1/Rn1n1P2/2k1q3/B3q1N1/N1rn4/1QRbR3 w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Na6 a4 Be7 h4 Bc5 a5 Bb6 axb6 gxh4 Qd3 Nb8 Qd5 Ne7 Qd1 Ng8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 g4 h5 e4 d5 g5 c5 b7 d4 g6 h3 b6 f6 b5 c4 f3 h4 g7 a4 Nc3 d3 Bg2 d2 Nge2 a3 Na2 c3 Ng3 Nc6 b8R c2 b7 h2 b6 Nge7 g8N Ra7 Ra8 h3 b8R Nd4 b7 Bd7 Rc8 Nb5 b8B Be8 Bd6 Rc7 Ra5 Nd5+ Kg4 Qd7 f4 Qe7 Bb2 c1Q Qf1 Qc3 Qb1 d1B+ Bf3 Qc6 Rca8 Qb7 R8a7 Qc8 Re1 h1B Bc1 Kd7 Kf5 Kc6+ e6 h2 e5 Bg2 Be4 h1Q Bb2 Rh7 Bf3 Rf7 Kg6 Bf1 Bg2 Bd3+ Be4 Qg2 Rh1 Kb6 Rh7 Rc2 Kh6 Qe2 Kg6 Qeb7 e7 Qe3 e6 Qbc6 Kh6 Qc4 Bg2 Bg6 Bf3 Qce4 Bg2 Bc6 e8R Rc7 e7 Bd7 Kg7 Bc6 Rf8 Bce8 f5 Kc6 Rf7 Kb6 Rh1 Kc6 Re1 Kb6 Bf4 Kc5 Bd6+ Kc4 Nc1 a2 Bba3 Nb4 Bf3 Qe5 Bc6 Nd5 Kh8 Qee6 Rh7 Q6e4 Kg7 Bef7 Qb2 Be8 Rb1 a1N Na2 Nb3 Rc1 Nd2 Qb3+ Kd4 Qb1 Kc4
1b1R3n/np2RNqB/1b6/1P6/n1b2BRB/Rq3NR1/3NK1Pq/r1kr2Q1 w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 gxh4 Qa4 Nh6 Qxa5 d5 cxd5 Ng8 Qa4+ Nd7 Qa7 Nb8 a4 Kd7 d4 Kd6 b4 e5 f4 c5 b5 h5 a5 c4 f6 c3 f5 e4 f7 c2 f6 h3 a6 h2 Nh3 h4 Ra3 e3 Bb2 c1B Nc3 e2 Kf2 e1N Nb1 Qc7 Nd2 Nh6 Bd3 Nc6 Ng5 h3 Bh7 Be6 Rg3 Nd3+ Ke2 Nc5 Ngf3 Na4 Re1 h1Q Qb6 h2 a7 Bg7 f8R Nf7 Rg8 Qg1 Bc3 h1Q Ba5 Bh6 R8g4 Rhd8 Bc3 Nh8 f7 Bg7 f8R Qhh2 Bb2 Rd7 Rd8 Be5 Bc3 Ba3 Bb2 Bc5 Bc1 Rc8 a8R Qe3+ Kd1 Qa3 Ke2 Qb3 Ra5 Ra8 Qa7 Ke7 d6+ Kf6 d5 Be3 Qd4 Na7 Qa1 Bb6 Ra6 Nb2 Ra3 Na4 Qd4 Qcc3 Qg1 Qa1 Rc8 Rd8 d7 Bb8 d6 Bg8 Rc3 Ke6 Rd3 Qg7 Rd5 Kf6 Rdd4 Bc4+ Rd3 Rc8 d8N Rc6 d7 Rd6 Nf7 Rd4 Rg6+ Kf5 d8B Kf4 Bh4 Nc8 Kf1 Ra5 Re8 Na7 Ke1 Rd7 Rde3 Rd5 Rd8 Rd3 Ke2 Ra6 Nb1 Rd1+ Red3+ Be3 Ra2 Nb2 Rd7 Ra3 Re7 Na4 R6g5 Qb4 Rd2 Ra1 Ra2 Qb3 Ra3 Be6 Rg6 Ke4 Rd8 Bb6 N3e5 Bd5 Bf4 Be6 Qh1 Bd5 Nd2+ Kd4 Nef3+ Kc3 Qg1 Kb2 R6g5 Kc1 R5g4 Bc4+
1B3B1k/PB1NR1Rq/n2pb2n/qR6/1r3b2/N1N2rP1/2BB1Q2/rnK1b3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 c4 Kg7 a4 e5 f4 b5 c6 h5 g3 b3 f6+ Kh7 f5 h4 f7 h3 a5 h2 f6 e4 c7 b4 c5 b2 a6 b3 c6 Nh6 a7 Na6 Ra5 Rb8 Qe1 Ng8 g6+ Kh6 g7 Kh7 Bd3 Ne7 g8R Nf5 Qf2 Ng7 Ne2 Ba3 f8B Rb4 f7 Nf5 Bc2 Nh6 Re1 h1R Nec3 Rg1 Rf5 e3+ Kd1 Rf1 Bd6 e2+ Kd2 Rg1 f8B Rh1 Rg6 Rg8 Rh5 Kh8 Rb5 Rg7 Rg4 Rf7 Rg7 Rf3 Bf4 Bb7 c8N Qa5 c7 Bd5 Nb6 Be6 c8B Rf1 Bc7 d6 Nd7 Rg1 Rf1 e1B+ Kd1 Rh1 Bb8 Rg1 Bb7 Rh1 Nd2 b1N Nc4 Bb2 Be3 Bc1 Na3 b2 Bg5 Bf4 Re7 Be5 Bd2 Bf4 Rg5 Rh5 Rgg7 Rhb5 Rh1 Ra4 Rh5 Rbb4 Nc4 Ra2 Na3 Ra1 Rb5 Ng4 Bh7 Nh6 Bc1 Nd2 Bf5 b1Q Bh7 Qd3 Bf5 Qd4 Bc2 Nb1+ Bd2 Qe4 Kc1 Qh7
2Rr4/2N1QN1r/3BK2B/1BNrRpPq/nkN1P2b/3bNb2/n3bR2/4b3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 a5 e4 h5 d4+ Kb4 g6 c5 d6 f3 d5 h4 d7 c4 b6 a4 d6 h3 g7 a3 b7 h2 Nc3 f2 Ke6 a2 Bh6 Nc6 b8B Nf6 g8R Nh7 g5 Be7 Nf3 Qe8 Ne5 Ba6 d8N Qh5 d7 Bd6 Ndf7 Nf6 d8N Nd7 Nb7 Rh7 Nc5 Nb6 Rc8 Na4 b3 Bc7 Qd7 Bb5 Rd1 a1R Rd5 Rd1 Qe7 Bb6 Bd3 f1B Bd6 Be2 Rf1 h1B Rf2 Rd2 Nd1 c3 Bc4 c2 Ne3 c1B Bd3 Bg2 N5c4 Bgf3 Re5 Rd1 Qa7 Bd2 Qe7 Kc3 b4 Be1 Nd2 Ba6 b5 Nb4 Ndc4 Bc7 b6 Na2 b7 Kb4 b8N Rd2 Bc2 Rd5 Bd3 Bb5 Rg2 Bh4 Rf2 Ba5 Nba6+ Kc3 Rc6 Rd8 Rc8 Bb4 Nc7 Ba6 Nb2 Ba5 Bb5 Kb4 Bd7 Bad3 Bc6 Ka3 Bb5 Be1 Nbc4+ Kb4
2n4N/q2nr2R/3RbnB1/1rr1P2N/1b2RBQ1/N2Rp3/Rrr4P/2k2BK1 w - - 0 1 illegal: No proof kernel
b1n2Q2/2NR3n/RNbb1P2/R1BKb1r1/6rk/P4nN1/B2NB2p/q3b2N w - - 0 1 illegal: No possible last move, all moves rejected
bQrN4/n3n1n1/8/KP2r1p1/3rBqPN/r1B1B3/1RN3b1/RNR1N1bk w - - 0 1 legal: proof: e4 d5 a4 b5 axb5 f5 exf5 Qd6 c4 Qg3 cxd5 Qxh2 d4 Kd7 Kd2 Kd6 Kc3 c5 f4 h5 g4 a5 b4 e5 b6 g5 b7 h4 b5 e4 f6 a4 f7 h3 f5 c4 Kb4 a3 f6 c3 Nd2 e3 Ra2 e2 Rc2 e1R Nb1 a2 Bg2 a1R Be3 R1a3 Nf3 Ne7 Rc1 c2 Rf1 Bg7 f8B Qf4 f7 h2 Qe2 Bf6 Bg7 Rd8 f8N h1B Ng6 Rd7 Ngh4 Nbc6+ Kc4 Rd8 b8N Bb7 Na6 Na7 Kb4 Rb3+ Ka5 Rac8 Nb4 Ba8 Qd3 Re2 Ne1 Be5 Bf3 Bg2 Qh7 Bf6 Be4 Rd7 Qg8 Rdd8 Rd1 c1N Nbc2 Nd3 Rc1 Nc5 Rh1 Ne6 Bh8 Kd7 d6 Ng7 d5 Bd4 Rf1 Rd2 Rh1 Re8 Rg1 Bc5 Rf1 Rd4 Rf2 Kd8 d7 Kc7 d8N Kd6 Rf1 Ke5 d6 Rdb4 d7 Rc4 Bd2 Bg1 Be3 Rcb4 Nb7 Rd4 d8R Rc5 Rc8 Rcd5 Rc4 Rc8 Nd8 Rdc5 Rf2 Rcd5 Ra4 Rdc5 Bb7 Rcd5 Ra1 Ke4 Nc6 Re5 Qe8 Rc7 Qb8 Rc8 Nd8+ Red5 Qc7 Ngf5 Ra3 Bf3 Kb6 Rdb4 Bc3 Ng7 Qb8 Rd4 Ra1 Bh1 Nca3 Bf3 Nc6 Re5 Rb2 Bh1 Nac2 Bf3 Nd3 Bh1 Ka6 Bf3 Ka5 Bh1 Ng6 Kf3 Nh4+ Kg3 Nd8 Kh2 Nde1 Bg2 Bf3 Kh1 Be4 Ra3+
R1BR4/bNP2q1r/1k2bQ2/2Nq4/3rNN2/1PB1q1nN/1Kpq1q2/nR4B1 w - - 0 1 illegal: No proof kernel
1QRr4/2B4R/bN1qR3/nBB1b1nB/8/2Krrp1N/bNP2P2/kBq2r2 w - - 0 1 illegal: No possible last move, all moves rejected
KN3B1N/1nN2b2/2q5/n2n4/1r1qR3/2pr1PPN/bbB2RQn/kB1NR3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 c5+ Kc4 Ke5 d3 a5 g6 h4 g3 e3 g7 h3 d6 a4 d7 h2 b6 e2 Kb5 Kd4 b7 e1N Nh3 e5 Nc3 c4 Bh6 a3 Qf3 a2 Qg2 e4 Nd1 Nc6 b8R Qc7 d8N e3 Nf7 Be6 Re8 Nge7 g8B e2 Bh7 Rb8+ Ka6 Nd5 b5 Bg7 b6 Na5 b7 Qc6+ Ka7 Nf3 Rb1 e1Q Rb2 a1N Rc2 Be5 Bf8 Qc3 Bf5 Rh5 Nh8 N1b3 Be2 Bf6 Re1 h1B Ra2 Rd8 b8N Nb7 Ka8 Nh2 Bf3 Qb2 B3e4 Bf7 Bh7 N3a5 f3 Rh4 Bef5 Qc3 Rf2 Rg4 Qg1 Bg2 Bfg6 Bf1 Qg2 Bg5 R8e6 Bc1 Re7 Bb2 R1e4+ Kc5 d4+ Kb4 Re1 Kb3 Bc2+ Ka2 R7e4 Ka1 Bf5 Ne7 d5 Qd4 d6 c3 d7 B1c4 Bg6 Ba2 Bh7 Re8 d8N Nd5 Ne6 Rh4 Nc7 Re6 Rf4 Re3 Bb1 Rg4 Bhc2 Rd3 Rfe4 Qdc5 Re8 Rb4 R8e4 Qd4
1qRq3q/N3r1n1/b4B2/3BKRPq/1kN1R1bB/2p2R1n/Q2R3P/N1r3b1 w - - 0 1 illegal: No proof kernel
1RNb2q1/1n2r1NR/r7/n1r1pb1P/k1q1n3/2Qn4/B1PN3K/1RR1BBR1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 h4 a5 f4 e5 Kf2 g5 Kg3 d5 b4 Kd7 h5 a4 b6 Kc6 b7 d4 f6 a3 f5 a2 f7 d3 f6 Kb5 c6 Nd7 b8R+ Ka4 c7 d2 b5 Ra6 b6 Nc5 b7 Qd5 Qe1 d1N Ne2 Qc4 Bd2 Bf5 c8B Nf2 Be6 Nfd3 Nd4 Be7 f8N Bd8 f7 Nf6 Nc6 Nfe4+ Kh2 Rh6 Rg1 g3+ Kh1 g2+ Kh2 g4 Ne7 Rc6 Nc8 Ra6 Bd5 Rhc6 Ne6 Rc7 f8R Rcc6 Rh1 g1R Ng7 Rc7 Re8 Re7 Bb4 Rg3 Rg1 Re3 Nd2 g3+ Kg2 Rf3 Rc1 a1N Rh8 Nab3 Rh7 Na5 Kh1 g2+ Kh2 Rf4 Qe3 Rg4 Qd4 Rgg6 Qc3 Rgc6 Bg8 Qb5 Ba2 Qc4 Ra8 Rcc7 b8R Rcc6 Rb5 Ncb7 Rb8 Rcc7 Bc5 Rcc6 Bf2 Rcc7 Rbb1 Rc5 Rh1 Bg6 Be1 g1Q+ Kh3 Qg5 Kh2 Bf5 Rg1 Qg6 Qa1 Qe8 Qc3 Qeg8
2Nb1R2/3N2n1/2b2BQ1/P1qB3P/1KBn1kqn/1BBrp1q1/6Rr/Nn4R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 Kf6 h4 Ke5 c4 d5 f4+ Ke4 h6 b5 a5 e5 f6 g5 h5 b3 Kc3 d4+ Kb4 b2 h7 g4 f7 d3 f5 g3 f6 d2 Na3 b1Q+ Bb2 g2 Ra2 Qe7 Qc2+ Kf4 Qg6 d1Q Nf3 g1N Ne1 e4 Nec2 e3 Na1 Nf3 Rg1 Nh6 Bg2 Qbc1 Bc3 Rg8 h8B Nh4 Bd5 Bd7 Rag2 Qg4 Bg7 Qd2 Bh8 Bg7 f8N Bc6 f7 Qf2 Nd7 Qfg3 f8R+ Bf6 Bg7 Qf7 Bh8 Bd8 Bhf6 Bb7 c6 N6f5 c5 Ng7 c7 Bc6 c8B Qe7 Kb3 b4 Ba6 Ra7 Kc4 b3 Kb4 b2 Nb5 b1N Nd6 Qf7 Bac4 Qe7 Ne5 Rd7 Nc8 Rd6 Bb3 Qa7 Bdc4 Rd3 Nd7 Bf3 c6 Bd5 c7 Nc6+ Ka4 Nd4 Kb4 Be4 Ne7 Bc6 c8B Rh8 Bb7 Rh6 Qf7 Rg6 Nc8 Rg5 Qg6 Rd5 Ra2 Rd2 Rb2 Rh2 Ra2 Ndf5 Rd2 Rd3 Rdg2 Nd4 Ba8 Ba4 Be4 Bc6 Bed5 Qc5+
1krB1BQr/1q2NBbB/2B2PR1/5bKp/Pn2r2b/1R6/4b1NR/4nN1q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 h5 Kf4 b5 g4 c5 a4 Kc7 d4 c4 d6+ Kb7 d5 e6 g6 b3 g7 c3 g5 c2 d7 b4 d6 b2 g6 b3 Bb5 Qa5 d8R Qa7 d7 Ba3 Nf3 Qa5 Nh4 Qa7 Rh2 Na6 Qg4 Be7 Ra3 Nc5 Nd2 b1Q Ng2 b2 Rb3 Nf6 g8B Bf8 g7 e5+ Kg5 e4 f4 e3 Bc6+ Kc7 Bh7 e2 g8B e1R Kg6 Qb7 Bgd5 Be7 Rg8 Nd3 Be6 Re4 d8B+ Kb8 Kh6 Nd5 Qg7 Bf8 Kg5 Ka7 Qf7 Qa1 Rg6 Bg7 Qg8 Qb1 f6 Bd7 f5 Rc8 f7 Kb8 f8N Qa1 f6 Qb1 Bh3 Bg4 Ne6 Be2 Nd4 Qa1 Nf5 Qb1 Nc4 Qa1 Be3 N5b4 Nd2 Qh1 Nf1 Ne1 Bd4 b1B Bc5 Re6 Bf8 c1B+ Kh4 Be3 Ne7 Bf2+ Kg5 Re3 Be6 Bf5 Bed5 Re4 Bf7 Bh4+
1qnBRrnB/N7/4P3/b2Q1b1R/1Np1R1B1/BN1r4/1BKnPq1n/1q5k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 g4 Kd7 d4 a5 Kd2 h5 b4 f5 g5 c5 g6 f4 g7 a4 d6 Ke6 b6 Kd5 d7 Ke4 d5 f3 b7 f2 d6 h3 b5 h2 b6 a3 Bh3 f1N+ Kc2 h4 Nd2+ Kf4 Ngf3 Kg3 Bb2 a2 Nb3 Ra3 Nfd4 Nc6 b8B Na7 Bg4 Kg2 b7 h3 Nc6 c4 Nb4 Qh4 d8N Qf2 Ndc6 Bf5+ Qd3 Be7 e6 Bd8 d7 Ba5 d8B Nc8 Rd1 a1Q Bf4 Nd2 b8B Qa2 Bfe5 Qa1 Rhe1 h1N Na7 h2 Bbd6 Ng3 Rh1 Ngf1 Bf8 Rh6 Bfe7 Rf6 Bc5 Rf8 Bed4 Nge7 g8R Qa2 Rh8 Ng8 Rh5 Qa1 Bh8 Qa2 Kc3 Qb1 Qd5+ Nf3 Rd4 Nd2 Rf1 h1Q Re4 Qh2 Rh1 Qb8 Bd6 Qbg1 Kc2 Qa1 R1h3 Nh2 Rf3 Kh1 Rf4 Bg6 Rf7 Qae1 Re7 Bf5 Re8 Qef1 Na1 Rd3 Nb3 Qf4 Na2 Qa1 Bda3 Qf2 Nb4 Qb1#
5rb1/R2bb2q/2K1p1P1/RN4kN/R1n2r2/1R1bQRn1/1P1BN1r1/q2BB3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 h5 f4 a5 d4 c5 g4 h3 d6 h2 Kd5 h4 g5+ Kf7 f6 Kg6 f7 c4 d7 c3 b6 h3 b7 a4 f5+ Kg7 g6 Kf6 Qd3 a3 Be2 c2 Bd1 a2 Qe3 Na6 b8R Rh4 Nc3 Nc7+ Kc6 Nb5 d5 Nd6 Nb5 Nc4 d6 Nh6 Bd2 c1R Ne2 Rf4 Rb7 Rc3 Ra7 Kg5 f6 Rc2 Re1 Qa5 d8N Nf5 d7 Ng3 Rf1 h1B+ Rf3 h2 Ne6+ Kh4 Ng7 Kg5 d8R Qc7+ Kd5 Bg2 Nh5 h1B Ra5 Bgh3 Rd7 Bf1 Be1 Qa7 Kc6 Bhg2 Ra4 Bh3 Rd3 Bhe6 Rb3 Rd2 Ng1 Rg2 Ne2 Bg7 f8R Bg8 f7 e6 Re8 Bf6 f8B Qh7 Bfb4 Be7 Bbd2 Rb8 Rd8 Ra8 Rd7 Rb8 Ned4 Bd3 Ne2 Ra8 Rda7 Rb8 Rb1 a1Q R7a5 Ba6 Rc1 Rf8 Rb1 Bc8 Ra7 Qa2 Ra1 Qb1 R4a5 Qc1 R1a2 Qa1 R2a4 Bd7+
1N2B1k1/1K1bRNp1/nQ3Bnr/R3R3/BB2Nn2/1r1Pb1q1/2nB1P2/5b1q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 c5 Ke4 e5 h4 b5 a4 c4 a5 b3 h6 b4 h7 c3 h5 b2 f6 b3 h6 c2 a6 Ra7 d6 Ne7 d7 Nbc6 Ra5 Rb7 a7 Rb8 a8B Qb6 d8B Rg8 h8N+ Ke6 h7 Qc7 f7 Nb4 Ne2 Na6 Bc6 Qd6 Be8 Ng6 Nbc3 b1B Rh5 b2 Bf6 Rb3 Ba4 Be7 f8B Bd7 Nf7 Rh8 Rg5 Ba2 d3 b1Q Bd2 c1N Bg2 Bd8 Qh1 Bb6 Qh6 Be3 Bf3 Qc7 Bb4 Qd6 Bh5 Qb8 Ng3 Ne2 Nf5 Nef4 Ne7 Qg1 Nc6 Qg3 Nd5 Qb7 Nb8 Qc6 Rf5 Qc1 Nc3 Qh1+ Bf3 Rc8 h8R Rc6 Rc8 Rd6 Rc7 Rb6 Bh4 Rd6 Rg5 Ke7 Rf5+ Kf8 Bf6 Kg8 Rg5 Bh3 Re7 Bf1 Be8 Ng2 Bd1 N2f4+ Kf5 e4 Rh5 Rb2 Bda4 Bc4 Rg5 Bb5 Rh5 Rb3 Rg5 Nf8 Ke5 Bd7 Qg6 Bc5 Rf5 e3 Ne4 e2 Rh5 e1N Rg5 Rb6 Rh5 Nfg2+ Kd5 Nc2 Rhe5 Re6 Qh6 Ng6 Qe3 Bb6 Qc5 Ba7 Qc7 Be3 Qd6 Bc8 Kc6 Bd7+ Kb7 N2f4 Qb6 Nf8 Bg5 Rh6 Bf6 N8g6
3n1qb1/1Q3P2/1RN2B2/RBPq2Nn/r1b5/r2B2b1/Rb1nNp1K/2NkN3 w - - 0 1 illegal: No proof kernel
2B5/1B1p4/nrqb3N/1PRR2rk/1r4N1/qb1KPrR1/qn1BB1B1/2N3Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 c4 f5 g4 Kf7 b4 Kg6 b6 h5 e6 h4 c5 a4 b5 d3 e3 f4 e7 f3 e8B+ Kg7 b7 h3 c6 f2 g6 Kh6 g7 h2 c7 a3 Nc3 a2 Nh3 Na6 b8R Ne7 g8B Nd5 Rg1 h1Q Bh5 Qe7 Ne2 Nc3 Rg3 Bb7 c8B Bd5 Bg2 f1R Nf2 Bb3 B8d5 Qa3 Bdb7 Na4 Qe1 Rg8 g5+ Kg7 g6 Kh6 g7 Bd6 Bhf3 Nb2 Ng4+ Kh5 Rb1 Rf2 Qg1 a1Q Kc3 Rf1 Bd2 Q1a2 Nc1 Ra7 Be2 Rf3 Be1 d2 Ra8 d1R Bd2 Re8 g8N Re5 N8h6 Rg5 Rb8 Rdf1 Ra8 Rf6 Ra1 R1f3 Rb8 Nd1+ Kd3 R6f4 Rb1 Rb4 Rb2 Ra8 Rc2 Ra7 Rc5 Ra8 Rd5 Ra7 Bc6 Rb7 Ra8 Rb6 Ra7 Bf4 Rc7 Bd6 B6b7 Qh3 Nh2 Qe6 N2g4 Nb2+ Kc3 Be7 Rc4 Qc6 Rcc5 Nc4 Kd4 Bd6 Kd3 Nb2+
qr1BN3/2P3qN/1R1N4/q2p1QN1/1BrNPKbq/2Rn4/2Bn4/k1bn3R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 b4 Kd5 h4 Kc4 e4+ d3 h6 d5 h7 a5 b6 g5 e6 f5 b5 f4 e7 a4 h5 a3 h6 a2 b7 Qe8 b6 Ra4 Ne2 d2 Nd4+ Kb4 c4 Nc6 b8N Be6 b7 Na5 c5 Nb3 c6 Nf6 c7 Nh5 Na3 Kc3 Nd7 Qa8 b8R Rc4 Nf6 Bd7 Rb1 a1Q Bd3 Bh3 Qe2 d1N Qf1 Bc8 Rb6 g4+ Kg2 g3 Kf3 Rg8 h8N g2 h7 g1Q Nf7 Qg7 Be3 Be6 Rc1+ Kb2 Nab5 Q1a5 Rc3 Ka1 Bc2 Bc8 Bc1 Rh8 Ba3 Nd2+ Ke2 Bf5 Ng5 f3+ Kd3 f2 Ke2 Nb3 Kf3 Nf4 Qh3 f1Q+ Kg3 Bg6 Qf5 Qe1+ Kf3 Nd3 Kg4 N3b2 Kf4 Bh5 Bd6 Nd2 Bc5 Rg8 h8B Bg4 Nfh7 Qf7 Bf6 Qh4 e8N Be7 Ng7 Rb8 Ne8 Qg7 Bd6 Bf8 Bd8 Be7 Be5 Ba3 Bd6 Qhh6 Bb4 Nd3+ Kg3 Bc1 Nbd6 N3b2 Kf4 Qh3 Nf8 Qh4 Nfh7 Nd3+
1N1bn2K/q1P3Np/rr1B2B1/nN2n1Rq/6qN/1R1B4/k1bR1P2/N4q1Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Kg4 d5 Kh5 a5 g4 d3 b4 a4 c4 d2 f6 Ke6 f7 d4 g6 e4 g7 a3 b6 e3 b5 a2 b7 e2 g5 e1Q c5 Kd5 b6 d3 c6 Kc4 g6 Nd7 b8N Ne7 Kh6 Ra5 b7 Qe2 c7 Qe1 Rh3 Qe4 Na6 Qe6 b8N Rg8 Nf3 Qe2 Nb4 Nc6 Ba3 Nf6 Nh4 Qd4 Nc2 Kb3 Bd6 Ne5 Nba3 Ra6 Nb5 Be7 f8N Bf5 Ne6 Bd8 Re3 Rf8 g8R Qeg4 Kg7 Qa7 Kh8 Ne8 g7 Rf6 Qf3 d1N Qh1 Nb2 Rd1 a1Q Rd2 Ka2 Be2 Qd1 Na1 Qf1 Rg3 Qh5 Rg5 Qg4 Rf8 Rh6 g8B Bg6 Rf3 Be4 Rc2 d2 Bd3 d1Q Rd2 Qh5 Re3 Qdg4 Bf7 Bf5 Bg6 Be4 Nc2 Nbc4 Ng7 Na5 Rf3 Bd5 Re3 Bb3 Na1+ Bc2 Bde4 Qgg2 Rb3 Qgg4 Bd3 Rb6 Bf7 Rf6 Bfg6 Ra6 Ba3 Rfc6 Bd6 Rcb6
2KbbRn1/1Qp5/1qBR1RN1/7r/1Rn2q1P/1b2B2N/1kP2N2/r1RB2rr w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Ke2 Kf7 Ke3 a5 Kd4 g5 Kd5 g3 b4 d6 f4 g2 h4 g4 e6+ Kf6 e7 g3 e8B a4 b6 a3 b7 a2 b5 Nc6 b8R Qd7 b6 Ra7 b7 Nd8 Be2 Nf7 Nc3 Be7 Be3 Bd8 Qb1 Rh5 Bd1 Ne5 Nh3 Nc4 Rf1 Qf7+ Kc6 g1Q Qb2 g2 Rc1 a1R Ne4+ Ke7 f6+ Ke6 Qb5 d5 f5+ Ke5 Nef2 Be6 Rc8 Rb1 b8R Raa1 Qb7 d4 Bd7 Qf8 f7 d3 f6 d2 Be8 Bd5+ Kd7 Qh6 f8R Qf4 Bf3 d1B f7 Be2 Rfd1 Bf1 Rd2 Bd3 Bd1 Bg6 Rd4 Nd6 Rd2 Bb3 Rd3 Nc4 Rd6 Qe1 Rf6 g1R Rd6 Qa5 Rf6 Be7 Rd8 Qb6 Kc8 Rh1 Rdd6 Bd8 Bc6 Rg1 Ra8 Rh1 Ra4 Rg1 Bd5 Rh1 Rb4 Rg1 Bd2 Kd4 Be3+ Kc3 Bc6 Kb2 Re8 Rh1 f8N Bf7 Ng6 Rg1 Rf8 Be8 Bb5 Rh1 Bc6 Raa5 Ne4 Rag5 Nef2 Ra1 Ra4 Rg4 Rb4 Rgg1
6kr/PB1K4/QN1R1Bb1/q2qbN2/pRP3nb/5bn1/1N2BR2/3qr1RR w - - 0 1 illegal: No proof kernel
1B2RK2/P5Br/3Pqr1R/1N4k1/1pQ1bNrq/1n1B1rnB/1b2q3/R2NB3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 b5 Kd4 h5 Kc5 e5+ d6 b3 d4 c6 g4 b2 a4 e4 f4 e3 f6 Kg6 a5 e2 a6 e1Q f7 h4 f5+ Kg7 f6+ Kg6 a7 h3 d5 h2 Qa4 Ne7 d7 Qe3+ Kd6 c5 Nc3 b1Q Nd1 c4 Bd3+ Qe4 Nh3 c3 Bd2 c2 Nf4+ Kh7 g6+ Kh6 g7 c1R g8R Qc2 Be1 Bg7 f8N Rh7 f7 Bb7 Qc4 b4 N8e6 Nbc6 f8B Qce2 Nd4 Rc3 Nb5 Kg5 Rh8 Bd4 Bg7 Na5 Re8 Qc8 d8B Nb3 Bc7 Rb8 Bc2 Rf3 Bd3 Ra8 Bb8 Bb2 Ra3 Qcf5 Ra1 Qfe5+ Kd7 Nf5 d6 Ng3 Kd8 Qf6+ Kd7 Qfe6+ Kd8 Kh4 g5 Qd4 g6 Kg5 Bc2 Be4 Bd3 Qg4 Ke7 Qe6+ Kf8 Qdf2 Rf1 h1R Rg1 R1h2 Rh1 Rg2 Rh6 Rg1 Bh8 Qh2 g7 Qh4 g8B Rg2 Bg7 Rg1 Bc7 Rd8 Bb8 Rd7 Bh8 Rdg7 Bf7 Rg2 Bg6 Rg1 Bf5 Rg6 Bd4 Nh5 Bh3 Rg4 Be5 Ng3 Bg7 Rf6+
1n3k2/pb6/2N1R1Bq/1nr1RbBn/bPR3Q1/N3NN2/1b3NPB/rq2K3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 c5 e4 h5 b4 f5 b6 c4 b7 c3 e5 c2 e6 f3 d6 f4 d7+ Ke7 g6 h4 d5 h3 g7 h2 Nh3 Qc7 d8N Nf6 Ra6 Qb6 Na3 Nh5 g8N+ Ke8 e7 Qh6 d6 Bg7 Bd3 Bb2 Rf1 h1Q Nf2 Bf5 Nf7 Qg1 Be3 c1N Ne5 Nb3 Rc6 Qh1 Rc4 Nd4 Be4 Nb5 Qd4 Nd7 b8B Qg1 Bc7 Rc8 Bc1 Nb8 Bd3 Qf8 Nh6 Qh1 Nhg4 Qh6 Ne3 Rf8 Ba5 Rc5 Bc7 Rh8 Nd7 Kf7 e8R Qg1 Re4 Rc8 Ne5+ Kf8 d7 Re8 d8N Re6 Rc2 Ra6 Rc4 Ra4 Nb1 Ra1 Na3 Qh1 Ndc6 Qg1 Kd2 Qh1 Re1 Qg1 Nh3 f2 Nf3 f1B Re5 Be2 Nf2 Bd1 Bb1 Ba4 Ke2 Bh3 Bg6 Bf5 Ng5 f3+ Kd2 Nd6 Qg4 Nb5 Re6 Qf1 Bh2 Qg1 Nd3 f2 Nf3 f1B Nf2 Qh1 Re2 Qg1 Ke1 Qh1 Ned1 Qg1 R2e5 Qh1 Bg5 B1d3+ Kd2 Bde4 Ne3 Qb1 Ke2 Bc1 Ke1 Bd5 Ne7 Bb7 Nc6 Bb2+
2Kn1R2/b1Pr2kB/3r1N2/NB3bnQ/1BPnNB2/1RB4n/4npq1/nR6 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 f5 h4 Kf7 b4 g5 e4 d5 c4 d4 c6 a4 h6 a3 h7 a2 e5 d3 e6+ Kg6 b6 d2 b5 Qe7 b7 Nf6 c7 Qf7 h5+ Kh6 b6 Bg7 e7 Qe8 Nh3 Bd7 Bd3 Ra6 Rf1 Ne4 Nc3 Qg8 e8B Nc6 b8N Bd4 b7 Nd8 Nc6 Ba7 b8R Kg7 Na5 Rd6 Rab1 a1N R8b3 Bc8 Qe2 d1N Nf2 Ne3 Bb5 Nec2 Ng4 Rd7 Nf6 g4+ Kg2 g3 Kf3 g2 h6+ Kg6 Ba3 Qd5 Bb4 g1N+ Kg2 Rf8 h8B Nd4 h7 Ng5+ Nce4 f3+ Kg3 f4+ Kg4 f2 Bg7 f3 h8B Rff7 Bh6 Rd6+ Kf4 Qa8 Ke5 N1h3 B8g7 Rfd7 Qd1 Nh7 Bf4 N7g5 Ng8 Rf7 Be3 Nf5 Ng3 Qb7 Rh1 f1N Qe2 f2 Bf4 Ng1 Rh8 Rc6 Kd5 Qa8 Bgc3 N1h3 Nf6 Kg7 Rf8 Nd4 Bh7 Bf5 Qh5 Rd6+ Ke5 Qg2 Nge4 Rc6 Kd5 Ng3 Ke5 Nge2 Kd5 Rc5+ Kd6 Re5 Bg3 Rfe7 Bf4 R7e6+ Kd7 Rd5+ Kc8 Rd7 Rf1 Rb6 Rfb1 Rbd6
3N2r1/1R1B3K/rb1n1NR1/nn1P1B1R/2N2n2/7r/Pr1qBk1p/BbQB4 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 Kf3 b5 Ke4 h5 d4 f5+ Kf4 c5 g4 b3 e4 h4 g6 h3 Kg5 b4 e6 Kd6+ e7 b2 g7 f4 Kg6 f3 e8B b3 g5 f2 Ba4 c4 Na3 b1N Ne2 b2 Nf4 c3 Nh5 c2 Nf6 Nc3 Rb1 Nb5 Be2 Nh6 g8B f1R Be6 Rg1 Bf5 Ra6 Be3 Rh7 Qc1 Nf7 Rh2 Nc6 e5+ Ke7 e6 Kd6 e7 Na5 e8B Qd7 Qf1 c1N Bad1 Nd3 Bf2 Qd8 Bed7 Rh8 Bh4 Rg3 Qh1 Rg8+ Kh7 Nf4 g6 Be7 g7 Bb7 Rc1 b1R Rc7 Rb2 Qe1 Bc8 Rb7 Re3 Qd2 Rc3 Qc1 Rf3 Rg2 h2 Rg5 Rh3 Rh5 Bf8 Ng4 Qg5 Nf6 Be7 Be1 Bd8 Bc3 Bb6 Nc4+ Ke7 Bf3 Qg2 B3g4 Qd2 Bge2 Nfd6 Rb8 Rf8 g8R Rd8 Rg6 Rg8 Bc6 Be6 Bd7 Bf7 Rb7 Be6 Bb1 Bf5 Be4 Rc2 Ba1 Rb2 B4f3 Bb1 Be4 Nf5 d6+ Kf7 Be8+ Ke6 d7 Nfd6 Na3 Nf5 d5+ Ke5 d8N Kd4 Bd7 Ke3 Nc4+ Kf2 B4d3 Nfd6 Be4 Bc7 Bef5 Bb6
2Nkbb2/2RB3R/1K1r2rP/2P3n1/1QN1B1q1/1B1p3r/r4R1b/BBN2b1n w - - 0 1 illegal: No possible last move, all moves rejected
1B3r2/2rRb1q1/4PN1r/N1R1nnRn/n3Q1b1/N1P3k1/BNB3pN/3K2r1 w - - 0 1 illegal: No possible last move
2N1N3/1QbP2nr/R4B1b/1RNBNP1q/2N5/2nr2k1/KR2nbp1/n2b1B2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 d4 e5 Kd2 c5 Kc2 g5 Kb2 b5 a4 b3 d6 c4 h6 g4 h7 e4 a5 g3 d7 e3 d5 g2 d6 e2 h5 e1B h6 b4 a6 Nc6 a7 Qb6 d8N Nce7 Qf3 Nd5 Nd2 Bf2 Nc6 Ne3 Rh5 Qc5 Ne7 Nc2 Ra6 Na1 Qb7 c3+ Kb1 b2 Ka2 b1N Ngf3 c2 Ne5 Qb5 Bb2 c1B Ndc4 Bce3 Rg5 Bb6 Bd4 Be6 d7 Bc7 Nc8 Ne7 Bb2 Rb8 a8B Qd5 Rh5 Qd1 Rg5 Qh5 Bc3 Nd2 Bb2 Nf3 Bc3 Nd4 Bb2 Rg8 h8N Ne2 h7 Bh6 Nhf7 Rg7 h8R Rh7 Nfd6 Bd5 Rd8 Bc6 Bc3 Ba4 Bd4 Bd1 Rdg8 Qh2 Rh5 Qh3 Rg3 Qg4 Rb3 Qg6 Rb2 Qf7 Rg5 Qh5 Qa7 Rb5 Bd5 Rb6 Qb7 Rc6 N4b6 Rc3 Nbc4 Rd3 Bc3 Nc6 Na7 Nd8 Ne8+ Ke7 Bd4 Ne6 Bc3 Ng7 f6+ Kd8 f7 Ke7 f8N b3+ Ka3 Nf5 Ne6 Ng7 Rd2 b2 Nc5 b1N+ Ka2 Ne6 Rb2 Ng7 Ned6 Kf6 Nac8 Qg4 Rh5 Qg5 Ne8+ Kf5 Nc6 Kg4 Bf6 Kg3 N6e5 Rc3 f5 Rf3 Rh4 Qh5 Rd4 Re3 Rdd2 Rc3 Rb5 Rd3 Rdb2 Nbc3+
2N3nb/pqk3qb/nR2BN2/5N2/P2BB1R1/Q2rB1bP/1bB1KR2/2n4b w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 b5 b4 c5 bxc5 Na6 Ba3 Rb8 Bb2 Rb6 Bc1 Re6 Na3 dxe4 Nb1 e3 Ke2 e4 Ke1 Re5 fxe5 Kd7 Nc3 Ke7 Nb1 Ke8 a4 Kd7 c4 f5 d4 g5 d5 b4 d6 f4 h3 e2 e6+ Kc6 h6 f3 e7 b3 e8B+ Kb7 h7 g4 c6+ Kb8 c7+ Kb7 d7 g3 c5 b2 c6+ Kb6 Nc3 b1Q Qb3+ Bb4 Rh2 g2 Bg6 Qg5 d8R Bb7 c8N+ Kc7 Rd4 Ba3 Ra2 Qe5 Rb2 f2+ Kd2 e1N Nf3 g1B Bd3 f1B Bc2 Nd3 Nh4 Bg2 Nf5 e3+ Ke2 Qg7 Ne4 Bh1 Nf6 Bf2 Qc3 Bg3 Rb6 Bb2 Rg4 Ba8 Bd2 Be4 Rf2 Nc1+ Kd1 Bd3 Qa3 e2+ Ke1 Be4 Be3 Bh1 Kd2 e1B+ Kd1 Bec3 Be4 Nh6 Bc2 Rf8 h8B Ng8 Be4 Nb3+ Ke2 Rd8 Bf7 Rd1 Be6 Bd4 Bc2 Rd3 Bd5 Qg1 Bf3 Qg2 Be4 Nc1+ Ke1 Bd6 Bd5 Ba1 Nh7 Qh6 Ng7 Nb4 Ne7 Kd8 c7+ Kd7 c8B+ Kc7 Bf5 Bab2 Bde6 Bg3 Nc8 Na6 Bg6 Bc6 Bgf5 Be8 Bg6 Qd5 Be4 Bg6 Nf5 Qb7 Kf1 Bc5 Bc3 Bd4 Ke1 Bh8 Nf6 Qg7 Bcd4 Bh7 Kf1 Nb3 Ke2 Nc1+
Q1NR4/6k1/bqB1B2b/2q3Pp/1R2KbBB/BNrn1Nn1/2nb3P/4qR2 w - - 0 1 legal: proof: e4 c5 f4 d5 a4 a5 d4 b5 axb5 g5 fxg5 Ra6 Qg4 Rd6 Qf3 cxd4 Qd1 d3 Kd2 d4 Ke1 Rd5 exd5 Bh6 Nc3 Bg7 Nb1 Bf8 Kf2 h5 Kf3 e5 g4 f5 c4 Kf7 b4 e4+ Kf4 a4 b6 a3 b7 a2 c5 d2 d6 e3 c6 e2 g6+ Kg7 b5 e1B g5 d3 b6 Ne7 d7 Na6 b8N Nc5 c7 Nc6 b7 Nd4 Qf3 d1N Nd2 Ne3 Nb3 d2 Ba3 d1Q Bb5 Nec2 Rb1 a1B Nc6 Bd2+ Ke5 f4 b8B Ba6 c8B Bb2 Ne7 Qb6 d8R Nd3+ Ke4 Ne2 Bc6 Qe1 Bg4 Bbc1 Nc8 Rh7 Qg2 f3 Bg3 f2 Nf3 f1Q Bh4 Qff2 Rf1 Qfc5 Rb2 Bf4 Rb1 Bcd2 Qh1 Kg8 g7 Kf7 g8B+ Kg7 Bgd5 Rh6 Be8 Rc6 Bde6 Qd6 Qg2 Rc3 Bc6 Qdc5 Qg3 Bfe3 Qb8 Bf4 Rb2 Kg6 Qa8 Bh6 Na5 Kh7 Rb4 Kg7 Nb3 Ng3#
1N1N2r1/2N3kP/3Nr3/1pb3pn/B1NR1qb1/nP2BbRn/R1r2B2/3K1Q2 w - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Rh7 Qc2 Rh8 Qb2 axb2 f4 Kf7 h4 e5 d4 g5 a4 c5 h6 b6 f6 e4 f5 c4 a5 e3 h5 e2 h7 c3 d6 c2 h6 Be6 a6 Qc8 d5 Nc6 d7 Qd8 a7 Qb8 d8N+ Ke8 f7+ Ke7 f6+ Kd6 Rh3 Ke5 d6 Bd5 d7 Be4 Ra2 Bb4+ Nc3 b1B f8N Nce7 f7 Kf6 Nf3 Ng6 Be3 Bc5 Rg3 Nf4 Nb5 Nh3 Ne5 Bf3 Nc4 Qf4 Nbd6 c1R+ Kd2 Rc8 a8N e1N Nc7 Nc2 Bg2 Bg4 Bc6 Re1 Ba4 Re2+ Kd1 b5 Bf2 Na3 Be3 Ne7 Bf2 Rg8 h8B+ Rg7 h7 Ng8 Be3 Be4 Bf2 Bef3 Be3 Ke7 Bf2 Rg6 Bhd4 Rge6 Bde3 Kf6 Nc6 Bd4 d8R Bc5 Nd7+ Kg7 Ndb8 Nf6 f8Q+ Kg6 Rd7 Rce8 Nd8 Nh5 N6f7 Kf6 Rd5 Kg6 Rd4 Kf6 Nfd6+ Kg6 Qf5+ Kg7 Qd3 Rf8 Qd2 Rh8 Qe1 Rg8 Qf1 Rc2+
1B1Q2nB/1KpR1q1N/1P1N2rN/N1r1Nr2/1pbRbk2/3P1n2/1R3b2/n4B2 w - - 0 1 illegal: No proof kernel
5NrR/p1b2NnK/1qP2r1N/1P4p1/1k2nr1B/RN1BBn1b/b7/2R2QN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 Kd3 Kd7 c4 Kd6 f4 Kc5 b4+ Kd6 h4 e5 c5+ Kd7 c6+ Kd6 b6 g5 f6 Ne7 h6 Bd7 b7 Rg8 h5 Ng6 b5 Kc5 f7 Bh3 h7 Ne7 h8N Nd7 b8B Nf6 f5 Qb6 h6 Kb4 h7 Ne4 f6 Nf5 Ra3 Bd6 f8N Bc7 f7 Ng7 Nfg6 Rf8 Ne7 Rg8 Be3 Rf8 Ke2 d3+ Kf3 d4 Ng8 d2 Nh6 d3 Qc1 d1R Nd2 Re1 Nb3 d2 Bd3 Rg8 f8N d1B+ Ne2 Bc2 Ng1 Bb1 N8f7 Ba2 h8R Re2 Qa1 Rc2 Qf1 Rc4 Rh2 Rd4 Rc2 Rd6 Rc1 Rf6+ Bf4 Nc5 Ke3 e4 Bg3 Rf4 Bh4 Rf6 Kd4 e3 Kd5 e2 Kd4 Bd8 Bf4 e1N Be3 Nf3+ Kd5 Rf4 Kd6 Bc7+ Ke7 Rc4 Kf6 Rf4+ Kg6 Ne4 Kh7 Re8 Rc5 Re6 Rc1 Ref6
b1Q2R2/1R1r2nq/q4BBp/rPRb1nRP/2K4N/2RN3p/1b3q2/Nk4B1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 d5 fxe5 d4 h5 d3 cxd3 Ba3 d4 Nd7 d5 Bf8 Qa4 Nb8 Qh4 gxh4 e4 Kd7 Ke2 a5 Kd3 c5 g4 f5 b4 h6 d6 Ke6 d7 h3 g5 f4 b6 f3 b5 a4 g6 a3 b7 f2 g7 a2 Nf3 Qe8 d8N+ Ke7 e6 Kf6 e5+ Kf5 e7 Qd7+ Kc4 Ke4 e8Q Ra3 d4 Nf6 g8R Qe6+ d5 Qd7 d6 Rh7 e6 Nc6 b8R Ne7 Rb7 Ra5 Nh4 Bg7 Be3 Nf5 e7 Bh8 Qf8 Ne8 Nc6 Bb2 Rg5 Neg7 e8R+ Qe7 Be2 f1B d7 Bg2 d8B Bd7 Nb4 Bc6 Rc1 Bh1 Ra7 Ba8 Na3 Bg2 Rab1 a1Q Rc3 Bf3 Rh1 Qf1 Qg8 Qf2 Rf8 Qf6 Rd7 Qa6 Bf6 Bg2 Nd3 Bf3 Kb3 c4+ Kb4 Bg2 Rhc1 Bh1 Nc2 Bd5 Ra3 c3 Na1 c2 Rc3 Ba8 Kc4 Bg2 Rb1 c1Q Rb7 Qc2 Rc1 Bh1 Bf4 Bg2 Bh2 Ke3 Bf3 Kd2 Bg1 Bh1 Bc6 Bf3 Be8 Bd5+ Kb4 Qb1 Bg6 Qc2 Rc5 Qb1 R1c3 Qc2 Ne5 Kc1 Nd3+ Kb1 Qh8 Ne8 Qg8 Rd7 Qe6 Neg7 Qc6 Qce2 Qc8 Qe8 Rf7 Qh8 Rf8 Bc6 Kb3 Qh7 Kc4 Bd5+
r2n3B/4q2N/3NB1Bp/1p1R2Nn/R5q1/B1Q1B3/b1rPqnKP/1Rb1k3 w - - 0 1 legal: proof: e4 b5 a4 g5 f4 d5 fxg5 c6 exd5 Ba6 b4 Nh6 axb5 Ng8 b6 Bc8 b5 cxb5 Kf2 Kd7 c4 Kd6 g4 Kc5 g6 Kb4 b7 f5 c5 e5 d6 a5 g5 h6 g7 a4 c6 a3 d7 a2 g6 f4 c7 f3 Bd3 e4 Na3 Nf6 g8R Qe7 d8B Bf5 c8B Nh5 g7 Nc6 b8B Be6 Bb6 Nd8 Nh3 e3+ Kg1 e2 Be3 e1N Ng5 Bc4 Bg6 Nd3 Be6 f2+ Kg2 Bd5+ Qf3 Kb3 Nc4 Kc2 Rb1 a1Q Be5 Qd4 Nd6 Ba2 Ba3 Qg4+ Qg3 Rh7 Rb4 Rh8 Rhb1 Rc8 Ra4 Rc3 Rbb4 Kd1 Rd4 Ke1 Rd5 Rc2 Bf6 Qa7 Ba1 Be7 Re8 Bf6 g8N Bb2 Nf6 Qe7 Nfh7 Bc1 Rf8 Rg8 Rff4 Rh8 Rfb4 Rf8 Rb1 Re8 Kh1 Rf8 Bh8 Rg8 Qh3 f1Q+ Bg1 Qfe2 Be3 Rf8 Qg3+ Nf2+ Kg2 Nb7 Bc3 Ra8 Bh8 Qf5 Qe5 Nd8 Qc3 Qfg4+
3r1RN1/1k1qbNPq/8/1b1RbrQ1/BpPq4/Rp6/1K1NN1NB/2n3nB w - - 0 1 illegal: No possible last move, all moves rejected
1nQ1n2k/1rpNr3/B3Nb2/qP2B3/3Bb1P1/1RR4N/Rr1p2B1/q3n1BK w - - 0 1 illegal: No proof kernel
3K4/2Rnrkn1/n3npr1/1N1B3R/3BR2q/1RRNn1PB/Q2b1Pp1/N3b3 w - - 0 1 illegal: No possible last move, all moves rejected
6bQ/RR4Kn/p6b/1PRnBB1r/2pr1B2/k4N1P/1N1BqBn1/3nNn2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 g5 f4 c5 b6 c4 h3 e6 d6 g3 d7 g4 f6 g2 b7 g3 f5 Rh4 f7 Ne7 Kf6 e5 d5 e4 d6 e3 Bd3 e2 Nc3 e1N Bd2 Rh7 Na4+ Kb5 b4 Na6 b8B Rh8 Qh5 Nc5 Nf3 g1N Nb2 Ng2 Ne1 Qe8 d8R Ne6 d7 Nf3 Bbf4 Bh6 f8N Nh2 Nh7 Nf1 Ng5 Nf8 Ngf3 Bg5+ Kg7 Nd5 f6 Qe2 f7 Nh7 f8B a6 B8d6 Bb7 Bde5 Rb8 Re8 Rd8 Bf5 Bc8 Rg1 Bb7 Rb1 Bc8 Nd1 Ka4 Re7 Ka3 Rf7 Nf8 Qh4 Rh5 Nb2 Nh7 Re7 Rf8 d8B Be6 Rc7 Bg8 Rc5 Re8 Bdf6 Re6 Bd4 Re4 Bf2 Rd4 B6e5 Nge3 Rh1 g2 Rh2 g1N Rg2 Nd1 Rg3 Be7 Rg6 Bd8 Rgc6 Bg5 Rc7 Qe3 Ra7 Ne2 Bh2 Nef4 Bhg3 Ng2 Bgf4 Be7 Qf6 Qe2 Qf8 Be6 Qh8 Bg5 Na4 Bf7 Rb3+ Ka2 Nb2 Bg8 Re3 N5c3 Rd3 Ka3 b5 Re4 Rd8 Nd5 Rdd7 Rd4 Rdb7 Bh6+
B1rb1Rbr/1RRP1rN1/2Bk4/r2n1p1B/Q4N1n/2Rp1q2/3P3R/3rKN2 w - - 0 1 illegal: No possible last move, all moves rejected
R4R1R/1P2pbR1/B3Nb2/1bP1NnKn/3q2BR/2br1pN1/Q1r4B/3k1b2 w - - 0 1 illegal: No possible last move
2NnR2Q/nB2n1K1/6b1/rR1R2N1/3b1PrN/q1BP1B2/p1BBb1pk/6n1 w - - 0 1 illegal: No proof kernel
1R1bn3/N2B3N/r7/r1R1n1PB/1BRBkrB1/p1r4Q/b1P3pq/1K1b3N w - - 0 1 illegal: No proof kernel
1b6/RNbBB1nQ/r1p3B1/R1pk4/n5Rn/2PKb1R1/P1rq3n/N2R1N2 w - - 0 1 illegal: No proof kernel
1rrnNR2/1R1QB2n/2pb1b1P/2BBp3/2P2q2/1B1Rn3/K1r2n2/3N1kNB w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 e4 d5 exd5 Ne7 f5 Be6 fxe6 Ng8 d4 Ke7 Kd2 Kf6 c4 Kf5 Kc2 Ke4 Kb2 g5 h4 b5 a4 f5 d6 g4 d5 f4 a5 b3 a6 b4 a7 g3 h6 f3 h7 f2 h5 g2 e7 Nf6 e8B Nc6 h6 Rb8 a8B Rc8 d7 Be7 d6 Rf8 h8B Nh7 Ra7 Bf6 Rb7 Rb8 Be2 f1N Bf7 Ne3 Rh3 Re8 Ka1 b2+ Ka2 Qc8 d8N Qf5 d7 Qf4 Ne6 Rec8 Bd2 Nd8 Ng7 Kd4 Bf3 Kd3 Nc3 b1R B7d5 Rc1 Ne8 b3+ Ka3 b2 Ka2 Bg5 Bf6 b1N Be7 Bf6 Be1+ Nd2 Bf2 Bh4 Qa4 Ne4 Bd1 Bf6 Bb3 Kd2 Nd1 Rc3 Bh4 Nf2 Bc5 Ke1 Qc6 Kf1 Qd6 Nc6 d8R Rc1 Rf3 Rc3 Rd7 Nd8 Rf7 Rc1 Rf8 Rc3 Qd7 Rc2+ Kb1 Ng4 Rd3 Ne3 Ne2 g1B Bh1 Bh2 Ng1 Bg3 Bg5 Bh4 Bd5 Be7 Bh1 Bd6 Be7 Bf6 Ka1 Rc1+ Ka2 Rc3 Rb4 Rc1 Bad5 c6 Rb7 Rc2+
bR4NB/n5P1/p1BN4/2pR2n1/1BrNRPNq/2r1bbr1/3K3Q/rk3N2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 h5 f4 e5 g5 a6 b6 e4 b5 h3 b7 h2 f6 h4 b6 h3 g6 c6 f7 e3 Qc2 e2 Ra4 Nh6 Nd2 Qg5 Bb2 Qe5 Ngf3 Ng8 Bg2 Qg5 Ne5 Bd7 Ng4 Be6 Nf1 Nf6 Kd2 e1R Bf3 Be7 f8B Re4 Rg1 h1B Rc4 Nbd7 b8N h2 b7 Ne5 Nd7 Qh4 b8R Nh7 Ndf6 Ng5 Ng8 Re3 Rg2 Rc3 Re2 Bg2 Re4 h1R Rc5 Ra7 Rcb5 Rc7 Rc5 Rc4 Bc3 Rh7 Bg7 Bf7 Bh8 Rg7 Bb4 Be6 Qb2 Bc8 Qa2 Bb7 Qc2 Ba8 Ra5+ Kd7 d6 Ke6 d7 Kf5 d8N Bc5 d5 Bd4 d6 Be3+ Kd1 Rc8 d7 Rc7 Rd5 Rc3 Be2 Bf3 Nb7 Rg1 d8N Rg3 Rd2 Rgd7 g7 Rd4 Bf8 Rdc4 Bb4 c5 Rd3 Re7 Ne6 Nc6 Ke1 Na7 Nd4+ Kg6 Nd6 Rb7 Ba5 Rb1+ Bd1 Rc1 Bb4 Ra1 Qh2 Bc1 Ne6 Nc8 Red4 Na7 Ba4 Be3+ Rd1 Qh6 Bc6 Qh4 Nf7 Kf5 Rd5+ Ke4 Nd4 Bg1 Rb1 Kd3 Nd6 Ra5 Rb2 Ra2 Re2 Ra4 Ree8 Be3 Re4 Raa3 Ne2+ Kc2 Nd4+ Kc1 Re7 Ra1 Re4 Bg2 Ke2 Kb1 Kd1 Bf3+ Ke1 Bf2+ Kd2 Be3+
4K2Q/5p2/NN2BP2/n1RBPbn1/NB1n2nr/5bkq/Nb1Rp1rR/6N1 w - - 0 1 illegal: No proof kernel
3K1N1n/P1rPRR1b/8/R1b2B1q/p2k3N/B2rNpbB/1n1r1rN1/2NQ4 w - - 0 1 illegal: No proof kernel
r1b4B/PPN2B1k/r1R1NbRn/2Q1npr1/1b3NRp/8/2KN1BqN/6r1 w - - 0 1 illegal: No proof kernel
Kb3NQ1/pnq4P/PNB5/1bnp1R2/R3r3/rb3BN1/1rkr2N1/5BRN w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Na6 g5 Nb8 g6 Qa5+ Bd2 Qd8 Bg5 hxg5 Bh3 Ke7 Kd2 d5 Kd3 f5 Kd4 Ke6 e4 b5 a4 g4 c4 b4 c6 g3 a5 b3 c7 g2 c5 b2 c6 Qe8 a6 Nh6 g8N Bg7 Kc5 Rh7 Nc3 b1R Nge2 g1R Nf6 Rg2 Rf1 Rg5 Ng4 f4 Ne3+ Rf5 Ra4 Bf6 g7 f3 g8R Bd8 Bg4 f2 h4 Rb7 h5 Nf7 h6 Ke7 e6 Kf6 e7 Rb2 e5+ Ke6 Ne4 Rg7 h7 Qd7 e8B Ke7 e6 Rb6 Bh3 Nd6 Bh5 Rgf7 Rgg1 Rb2 N2g3 Rf3 Nh1 R7f5 Neg3 Kf6 e7 Ke5 e8N Bg5 Nf6 Bf4 B5g4 Rh5 Bg2 Rh2 Qd3 Qf7 Qg6 Bf5 c8N Bc2 c7 Nd7+ Kc6 Nc5 Nb6 Re8 c8B Re7 Bcd7 Bd1 Nec4+ Kd4 Ne3+ Kc3 Qg8 Re4 Be8 Kb3 Nfd7 Qe7 Kc7 Ndb7+ Kc8 Kc3 Nf8 Qd6 Bc6 Kd3 Re1 f1B B4h3 Bfe2 Ref1 Kc3 Bg4 Bb5 B2h3 Rhe2 Rf2 Red2 Bf1 Be5 Ng2 Rfd3 Rf5 Rde3 Ra5 Bda4 Bf3 Kc2 Ng6 Ra3 Nf8 Bb3 Ra4 Bf6 Rh5 Qe7 Kb8 Be5+ Ka8 Bb8 Rf5 Qc7
b4k2/BQn1q3/3NRNrp/KNN1RnP1/2p1B3/4b3/P1Rb2rB/4q1Nb w - - 0 1 illegal: No possible last move, all moves rejected
8/1BnRN2P/1NRN1bK1/p5n1/1n1N1rkn/q2p2P1/N1bB1Rr1/BQ4q1 w - - 0 1 illegal: No proof kernel
1qR3b1/nQP1K2B/NR6/4R1Rn/2bPqkrb/1p1B4/1pNb2r1/2BN2R1 w - - 0 1 illegal: No proof kernel
5R2/2n1B2B/1b2B1N1/p5r1/1Pn1B1rn/Bn2p1Kn/P2qNQNR/k2r3R w - - 0 1 illegal: No possible last move, all moves rejected
3q2BR/nP1pBp1N/q1bbkP2/bR3R2/KRR3Bb/b1r3N1/N7/n4Q2 w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 h5 b4 b5 g4 hxg4 bxa5 b4 Bb2 Ra7 Ba3 Rb7 Bc1 Rb5 cxb5 Rh4 Nh3 Rh7 Ng1 Rh8 Kd2 Ke7 Kc2 g5 Kb3 c5 h4 g3 a4 g4 e4 g2 f4 g3 b6 Bb7 e6 Bg7 h5 Kf6 h6 Ba6 h7 Bd3 f5 Bb5 e7 Nh6 e8N+ Ke5 a6 Bf8 a5 Bg7 a7 Bc4+ Ka4 b3 a8B b2 a6 Bf6 a7 Na6 Bg5 Qc7 Bd3 Ng4 Ne2 g1B Rh5 g2 Qf1 Nb4 Nbc3 b1Q Na2 Bd5 Ng3 c4 Rh4 Rg8 h8R c3 Be2 Qd3 Rb1 Bd8 Be7 c2 Nf6 c1B Nh7 Bh2 f6 Ne3 Bg4 Nc6 Rb5 g1B Bb7 Qc8 a8R Nc2 Raa5 Na1 Ba6 Rg7 b7 Bf2 Rb4 Qa8 Rab5 Ba5 Rc4 Ba3 Rh5+ Kf4 e5+ Be4 e6 Na7 Rbb4 Qd8 Rhb5 Rg5 Bc5 Ke5 e7 Bc6 e8R+ Kd5 Re2 Be1 Rf2 Rf5 Be7+ Ke6 Bd1 Rh5 Rf5 Rh3 Bg4 Qd6 Nh1 Rb3 Ng3 Rc3 Ne4 Qb6 Rcc5 Bd5 Rf2+ Ke5 Nhg5 Qbc7 Rb6 Nc6 Bd3 Na7 Rcc4 Qd8 R6b5 Bf4 Rf3 Bh4 Ng3 Qa6 Bh7 Nc2 Bg8 Na1 Nh5 Bfg3 Nh7 Bh2 Rf5+ Ke6 Qd1 Bc6 Qf1 Bhc7 Ng3 Bd6
3Q1qrr/2qnbP2/NR3p2/K1BB1B1B/q1BqNPb1/6R1/1N5p/k1q2R2 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 f6 e4 Nc6 e5 Kf7 Qd3 Ke6 Qd1 Kd5 e6 Kd6 Rh3 Ne5 Rh1 Nf7 exf7 Bh6 Rh2 Bg7 Rh1 Bf8 Kd2 Kd5 f4 a5 c4+ Ke4 g4 e5 b4 h5 g6 d5 g5 h4 b6 a4 g7 a3 b5 h3 g6 d3 Kc3 a2 b7 d2 b8R h2 b6 Ba6 c5 d4+ Kb4 d3 b7 Kd4 Nf3+ Ke4 Nc3+ Ke3 Ng5 Kd4 Ba3 e4 Rg1 e3 Na4 e2 Rg3 e1Q Nb2 Qc7 Ne4 Qd6 Ka5 Nh6 g8B Be7 c6 Ng4 g7 Ne5 c7 Nd7 c8B Qf2 Rc1 a1Q Bh7 Qe1 g8B Qc7+ Ka4 Qe2 Bf5 Qg4 Bg2 Qg7 Bgh7 Qf8 Bhg6 Qa2 Rb1 Qac4+ Bb4 Qc1 Bh5 Rg8 Be6 Rh8 Bc4 Rg8 Qb3 d1Q Bd6 Qg1 Qd1 d2 Bh1 Ne5 Bf5 Nd7 Rd8 Rh8 b8N Bc8+ Na6 Rb8 Nc3 Qe3 Bhd5 Qd3 Ne4 Rg8 Ng5 Kc3 Bc5 Ra8 Rf3 Rh8 Rf1 Qd4 Re8 Bb7 Rb8 Bc8 Rb6 Rg8 Ka5 Rb8 Qg4 d1Q Ne4+ Kc2 Ra1 Ra8 Ra3 Kb1 Rg3 Ka1 Qg6 Ne5 Bh3 Rh8 Ng5 Qde3 Bh1 Qg7 Qh6 Qed4 Bhd5 Be6 Ne4 Nd7 Qg5 Qh6 Qg7 Rag8 Qf8 Bf5 Qd8 Qf8 B3g4 Qdc2 Bf3 Bh3 Bfg4 Q2d1 Bge6 Bg4 Bf5 Qa4+
1k6/1bpR1npn/3qBB2/2PN2R1/nR1nQ2r/3BB1B1/2Nq1P1b/NK2n3 w - - 0 1 legal: proof: e4 e5 a4 b5 axb5 f5 d4 h5 g3 a5 g4 hxg4 exf5 e4 Kd2 Ra6 Ke2 Re6 Ke1 Re5 dxe5 Kf7 Bh3 Ke7 Bf1 Ke8 Kd2 d5 b4 Kd7 c4 g3 Kc2 e3 h4 g2 b6 d4 b7 a4 h5 a3 f6 a2 h6 e2 h7 e1Q f7 Qe7 b5 Nf6 e6+ Kd6 b6 Ne4 Bd3 Nf6 Bg5 Qe4 Ne2 g1N Qe1 Nh3 Na3 Qf4 Nc1 Qd7 e7 Qfg4 e8B Ng8 Bf6 Qg5 Nb3 Qf4 Rg1 Qe7 Bd7 Nh6 Be6 Nc6 b8B Bb7 Ba7 Ng5 Rd1 a1N+ Kb1 Nc2 Qe4 Qd2 Na1 Ne1 N3c2 Kc5 Rg2 Qd6 Rg4 Be7 f8B Nhf7 Rg1 Qg3 Rg2 Bd6 B8e7 Qh2 Be5 Qh6 Bg3 Qh2 Bf6 Be5 Be2 d3 Rg1 Nd4 Rg2 Rd8 h8N Nh7 Ng6 Rh8 Nf4 Kd6 Nd5 Kc6 Bf4 Qh6 Rg5 Qg6 Bg3 Bd6 Bh4 Bh2 Bg3 Qh6 Rf5 Qhf4 Rg5 Qd6 Bf1 Nf8 Be2 Rh4 Bf1 Nh7 Be2 Qc3 Bf1 d2 Bd3 Ba6 b7 Qa5 b8R Bb7 Rc1 d1N Rd8 Qd2 Rd7 Nb2 Bb6 Nb3 Be3 Na4 c5 Nd4 Na3 Ba8 Rc4 Kb7 N3c2 Kb8 Rb4+ Bb7
8/1Qr4k/1n2N1RB/R1n1qb2/qp1nR1p1/bNB1N1P1/K1BR1P1q/2R1q3 w - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 b5 cxd5 g5 Bd3 f5 exf5 g4 Bf1 Ra6 Nc3 Rg6 Nb1 Rg5 hxg5 Bg7 Be2 Bh6 Bf1 Bf8 a4 Kf7 d4 Kg7 Kd2 c5 Kc2 h5 Kb2 e5 g3 e4 f6+ Kh7 a5 b3 f7 h4 g6+ Kg7 a6 b4 d6 h3 d5 c4 d7 h2 d6 e3 a7 e2 a8R e1Q R1a5 Na6 Ne2 Be7 f8N Qb6 d8B Qe3 d7 Qe5+ Nbc3 Bf6 Nd4 Ne7 Qf3 Nc5 Nd5 Rh7 Ne3 Nd5 Bd3 Nb6 Bc2 c3+ Kb1 b2 Qb7 Bg5 Ka2 b1N Bd2 Na3 Nb3 Nb5 Ne6+ Kg8 g7 Nd4 Rf1 h1Q Bf6 Bf4 Bg5 Qh2 Bh6 Bg5 Bd1 c2 Bc3 c1Q Bc2 Qcd1 Rb8 Kf7 g8R Kf6 d8R Rc7 Rg6+ Kf7 Nc4 Bc1 Ne3 Ba3 Rd6 Bd7 Re8 Bc8 Nf8 Bf5 Ne6 Qd3 Rg1 Qb5 Rd5 Qa4 Rf1 Ne2 Rd2 Nd4 Rg1 Qe2 Rc1 Qd1 Ng7 Qe1 Ree6 Kg8 Re7 Qd6 Re4 Qe5 Ne6+ Kh7
qN1R3N/1r1Ppn2/N2R3r/6q1/1Brq2p1/3Bk1PK/qR2B1nb/BQ5B w - - 0 1 illegal: No possible last move, all moves rejected
rRqRBr2/4pNK1/k3P1N1/3N2pN/N1q1B3/R3Q1b1/2qP1Bqb/3b1n2 w - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 axb5 f6 cxd5 Nd7 h4 Ne5 h5 Ng6 hxg6 f5 Qa4 fxg4 Qb3 Nh6 Qd1 Ng8 f4 Kd7 Kf2 h5 Kg3 a5 b4 c5 e4 Kc7 e5 Kb6 f5 a4 f6 a3 d6 c4 d7 c3 f7 a2 e6 c2 g7 Ra6 Nc3 Nf6 g8B Bg7 f8N Ra8 Qf3 Bb7 Bh7 Ra4 Qe3+ Kc7 b6+ Kc6 b5+ Kd6 Ng6 Qa8 d8N Qc8 Nh3 Rf8 Nd5 Ra8 Bb2 c1Q Nhf4 Q1c2 Bd4 Ba6 b7 h4+ Kg2 h3+ Kg3 h2 b8R Bh8 b6 Be2 b7 Bd1 Nf7+ Kc6 Nh5 Qc4 Bg2 Kb5 Be4 Ka6 Rf1 h1Q Rf3 Q8c5 Rb1 a1B Rd8 Qc8 Rb3 Qc2 Bc5 Qf1 b8N+ Ka5 Rb1 Qfc4 Nd7 Ka6 N7b6 Bg7 Na4 Be5+ Ngf4 Bh8 Rb8 Bc7 Bhg6 Bd6 Kg2 g3 Kh3 Ng4 Bd4 Nh2 Bb6 Nf1 Kg4 g2 Kf5 g1Q Qe1 Kb5 Ra3 Q4c3 Bf2+ Ka5 Qe3 Bf6 Nh8 Ka6 Be8 Q3c4 Kg6 Qg2 Nf7 Bfe5 Kh7 Bc7 Ng6 Bh2 Kg7 Bcg3
1BK1N1RB/2N4q/2B2Q2/2nr1pR1/1B4qb/1RNpPq2/B2Pb1bn/k2q4 w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 h4 g5 hxg5 Ke7 a4 Ke8 b6 Ke7 b5 Ra6 b7 Rf6 b6 Ke8 Nh3 Rf5 Ng1 Rb5 axb5 a4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 d5 e3 f5 g6 c5 g7 h5 g5 h4 g6 a3 Ne2 f3 Ng1 f2 Ne2 c4 Nbc3 d4 Nf4 a2 Bg2 f1B Bb2 d3 Rb1 a1Q Nh5 h3 Nf6 h2 Ne8 Qa4 Rg1 h1Q Bc6 Be2 Rg5 Na6 b8B Nh6 g8B Qd7 b7 Nc5 g7 Be7 b6 Qf3 Bd6 Rh7 b8N Bb7 Qf1 Kb3 Na6 Rh8 Nac7 Ng4+ Kd4 Ba8 b7 Nh2 Ke5 Rh4 b8B Rd4 Bgd5 Bd8 g8R Qh7 Be6 Kc2 Be7 Rd5+ Kf6 Bb7 Qf2 Kb3 Qh4 Kc2 Ba1 Qb4 Rb3 Ba8 Na4 c3 Bb2 Kb1 Bf7 Nd7+ Ke6 Qbg4 Bb4 c2 Bh8+ Ka2 Nc3+ Ka1 Qh6 c1Q Qf6 Qd1 Rf8 Ra5 Rfg8 Nc5+ Kd6 Na6 Kd7 Rd5+ Kc8 Nc5 Na6 Bc7 Be6 Bg3 Nac7 Bh4 Rb2 Rd4 Ba2 Rd6 Bd7 Be4 Rb3 Rd5 Ba4 Qfg3 Bd7 Bg2 Bc6 Q3f3
nb2B1Rq/1p1p1r2/bP2KbN1/1RRQ3q/2Nr4/3Bb2N/kB2RP2/2q1R3 w - - 0 1 illegal: Other
5B2/3R1rBB/rnN1BBQ1/bq1b2qp/1N3p1b/qRR3PP/b3N1k1/4K3 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 f4 c5 fxg5 d4 Ra4 Na6 Ra1 Nc7 d3 Nd5 exd5 c4 Qh5 cxd3 Qf3 Qd6 Qd1 Qd8 b4 Kd7 c4 Kd6 g3 Ke5 d6 Ke4 g6 h5 b6 f5 h3 e5 g7 a5 b5 f4 d7 a4 b7 a3 b8N a2 c5 Bb7 b6 Nf6 g8B Ra6 c6 Be7 c7 Nd5 c8R Rh7 Nc6 Bh4 Bb2 Qg5 d8B Rf7 Ne2 Kf3 Qc2 e4 Bh7 e3 Bf6 Ba8 b7 Nb6 b8B d2+ Kd1 Qb5 Na3 Bb7 Rc1 a1Q Qg6 Qg5 Nc2 Qa3 N2b4 Kf2 Ne5 Bd5 Rb1 Ba2 Nec6 Kf3 Kc2 d1B+ Kc1 d3 Bd6 Kf2 Bf8 Bdb3 Bg2 Qb5 Rd1 Bd5 B6g7 d2+ Kc2 Bac4 Bbf6 Ba2 Bf1 Kf3 Rb3 Kf2 Rc7 Kf3 Rc1 d1Q+ Kc3 Kf2 Rd7 Qd4+ Kc2 Qe5 Kd1 Qg5 Rcc3 Kf3 Bg2+ Kf2 Be4 Kf1 Bf5 Kg2 Ng1 e2+ Ke1 Qd3 Be6 Qb5 Kd2 e1B+ Kd1 Bf2 Ne2 Bd4 Kd2 Be5 Ke1 Bc7 Re7 Na4 Rd7 Ba5 Re3 Nb6 Red3 Qc4 Rdc3 Qb5
8/N2B2Qq/k1b3pb/B1R4P/3nb1P1/1q1pB1Nq/1RN1brR1/NNn4K w - - 0 1 illegal: No possible last move, all moves rejected
rN1B1B1R/6r1/Q2p1K1N/pBN2NR1/3b1N2/P1qr4/1q1P1bbk/4bR1n w - - 1 2 illegal: No possible last move, all moves rejected
1Q2N3/1B1n2Rb/1R1prpqb/r1N2K1P/1rBqNR1N/2q5/2qB1P2/6kN w - - 0 1 illegal: No possible last move, all moves rejected
1NR2q1k/R1rP1b2/B1pp4/5q2/3r2Nq/2r1N3/qN1P1bBB/1R2QKnN w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 g5 a4 d6 axb5 Be6 h4 gxh4 c5 Bc8 c6 Nd7 cxd7+ Kf7 g4 Kg7 f4 h5 b4 a5 b6 e5 b5 h3 g5 c6 b7 e4 b8N a4 g6 a3 b6 h2 f6+ Kh6 f7 Kg7 b7 a2 f5 e3 Nc3 e2 Na6 h4 b8N h3 Bb2 Nf6 Nd5 Rh4 Ne3 Ra7 Bg2 Rc7 Nb4 Kh8 Nd3 Bh6 f8N Rd4 Nh7 Ng4 f6 Qf8 f7 Ne5 Nf6 Ba6 Nfg4 Bc4 Kf2 e1R Ne2 Bg7 Ng3 Nf3 Rg1 Re2+ Kf1 h1Q Qe1 h2 Bc3 Bf6 Nb2 Bh4 Rb1 a1Q g7+ Kh7 g8B+ Kh8 Bh7 Qa2 Bd3 Bd5 Ba6 Bb3 Ngf5 Bf2 Ng3 Be6 Nc2 Re5 Nce3 Rc5 Ra1 Qg8 f8R Bf7 Rc8 Qf8 Ba5 Rc3 Bb6 Qa4 Bb7 Qc2 Ra7 Qf5 Ba6 Nh4 Bh3 Qhd5 Bg2 h1Q Bc5 Qh2 Nh1 Qa2 Bb6 Nf3 Bc5 Qh6 Bb6 Rdc4 Bd4+ Qhf6 Be5 Rd4 Bh2 Qh4 Qa1 Bg8 Ke2 Ng5 Rc1 Be6 Kf1 Nh3 Re1 Ng1 Qd1 Qfa5 Qe2 Q5d5 Rb1 Bf7 Qe1 Qf5
n1N4N/bk1B3r/R1p1p1b1/1rR3Qr/3BP3/2P2bq1/2b1r1R1/R2NKRB1 w - - 1 2 legal: proof: h4 d5 e4 g5 hxg5 b5 a4 Nc6 axb5 Ne5 Ra4 Ng4 Ra1 Ne3 fxe3 d4 Rh3 dxe3 Rh2 Qd5 Rh1 Qd8 g4 Kd7 b4 f5 d4 h5 b6 Kc6 b7 a5 b8R h4 g6 e2 g5 h3 g7 e6 g6 a4 Qd2 f4 Bb2 a3 Rb5 a2 Nc3 f3 Nd1 h2 Nh3 Rb8 Rc5+ Kb7 b5 Nf6 g8N Nd5 g7 Bd7 b6 Rh7 Nf4 Qg5 Ne7 Be8 g8R Bg6 Nc8 Bd6 Rg1 h1B Rg2 Qg3+ Rf2 Ne3 d5 Nc4 Bd4 c6 c3 Be7 d6 Bh4 d7 Bg2 Rc1 a1R d8R Ra2 Ra1 Rc2 Rdd5 Be7 Rca5 Bc5 Ra6 Bh1 Be5 Be3 Bd4 Rb2 Rc5 Rb5 Na7 Rf8 Nc8 Rf5 Rf8 Rfh5 Rff5 Nd6 Rf8 Ne8 Rg8 Nc7 Rg7 Kb8 b7 Na8 Rg8 Kc7 b8B+ Kb7 Ba7 Bg2 Nd3 Bh1 Ne5 Bg2 Nf7 Bh1 Be5 Bd4 Qg5 Bg2 Kd2 e1R Nh8 Bh1 Rg2 f2 Rf8 Re3 Be2 f1B Rff2 Rf3 Ke1 Be3 Bd4 Rf6 Bf3 Bd3 Be2 Bc2 Bc4 Qe5 Rf1 Rf2 Bd3 Qg3 Be2 Rh2 Bh5 Rh4 Rgg1 Bf3 Rg2 Bf5 Bg6 R4h5 Be8 Bg6 Bb6 Bf4 Bd7 Bb8 Bc7 Ba7 Bf4 Qg4 Bh2 Qg3 Bg1 Re2#
n2Bn3/B1bKn1q1/1r1NRpn1/bB2b3/2p2kb1/RNPB4/B2R1P1N/3Q4 w - - 0 2 legal: proof: d4 a5 b4 e5 dxe5 b5 a4 h5 axb5 a4 g4 Ra5 bxa5 hxg4 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 c5 h4 g5 h5 f6 h6 g3 a6 a3 a7 a2 a8B g2 e6 g4 h7 g3 b6 Ne7+ Kd6 Na6 b7 Nc7 Ba3 Kf4 Nf3 g1B b8B g2 e4 Bh2 e5 g1N Bd5 Ne2 Nbd2 Na8 Ba7 Qa5 Bb3 c4 Rg1 Rg8 h8R Qb5 Bb4 Qb7 Ba5 Rg5 Rh3 Rg8 Rc1 a1B Bd8 Bc3 Rg7 Ba5 Ba2 Rh8 Nb3 Rh5 Kc5 d5 Kd6 d4 c3 d3 Ra1 Bg3 Nh2 d2 Rg8 Bh6 Re8 Bf8 Ng4 Bh2 Rd3 Bg3 Nh2 Rg5 Qc2 d1N Rd2 Ne3 Qb1 N3d5 Qd1 Ng6+ e7 Ndc7 e6 Nd4 Bd3 Nc6 Bab1 Bh6 Ra3 Rb5 Ba2 Rb4 Rf8 Bg5 e8B Rb6 e7 Bg4 Bd7 B5h4 e8N Nce7+ Bc6 Be2 Kd7 Bg4+ Bf5 Bg5 Bb5 Qg2 Nd6 Ne8 Nf1 Bh2 Rh8 Qg1 Rh3 Bh4 Re3 B4g3 Re1 Kg5 Re6 Be5 Bd3 Bhg3 Nf5 Bc7 Nh2 Bge5 Nd6 Kf4 Qc1 Bf3 Qb1 Qg5 Qd1 Bg4 Bb8 Qh6 Ba7 Qg7
6Q1/bp2p1p1/RRn2nk1/Rrr3qN/1RB1NP1n/3B2P1/6N1/1KrRBb2 w - - 0 1 illegal: No proof kernel forced: wxDB
N2Rq3/r1BQ4/1p5R/n1NBNb1n/r2Nb3/K1PB1npq/1Pp5/kNR5 w - - 0 1 illegal: No proof kernel
3rBN1K/b2R1RnP/1B6/2r2nrq/2k1p2p/4B2N/R1qP2Rp/1R1NQb2 w - - 0 1 illegal: No proof kernel
1R1NR1B1/1q1bqpk1/NprN1Np1/1rQ2PK1/8/2n1B3/n2qNbP1/B1R5 w - - 0 1 legal: proof: c4 a5 e4 d5 b4 Nh6 bxa5 Ra6 e5 Rd6 cxd5 Ng4 exd6 Nxh2 Ke2 h5 Ke3 c5 Kf4 h4 a4 h3 d4 b6 a6 c4 a7 e6 a8R c3 d7+ Ke7 d6+ Kf6 d5 c2 a5 Nf3 a6 h2 a7 Na6 Rb8 Ne1 a8N Kg6 Bd3+ Kf6 Qh5 Qe7 d8N Nb4 d7 Rg8 d6 Nf3 Nb7 Na2 d8N Ng5 d7 Ne4 Be3 c1Q Nc3 Qd2 Nd6 e5+ Kg4 Rh8 f4 Rh6 Nge2 Rg6+ Kh4 Rh6 Rhc1 h1R+ Kg4 Re1 Nc7 Rf1 Nb1 Nec3 Bh7 e4 Na6 g6 Qg5+ Kg7 Bg8 Rh5 Qc5 Qd5 Nd2 Qb7 Rab1 Re5 f5 Rg1 Bg5 e3 N2e4 Rd1 Rb5 Rdd5 Nf6 Re6 Bf4 Rde5 Kg5 Rd5 Nd4 e2 Be3 e1Q Ne2 Qd2 Rb4 Rde5 Re4 Rd5 Nc6 Rde5 d8B Bd7 Bc7 Rd5 Nd8 Rde5 Nb5 Rd5 Be5 Rc6 Bd4 Na4 Ba1 N4c3 Nd6 Re5 Qc4 Rb5 Qc5 Kh8 Re6 Bh6+ Kg4 Kg7 Re4 Bf4 Re6 Be5 Kg5 Bg3 Re4 Bf2 Re5 Qf8 Re8 Qe7
N1q1bBn1/4N3/1Rr1NPBK/p3N3/3rp2R/n1P1n2R/3bpkB1/2NQ3n w - - 0 1 illegal: No possible last move
1RB1Q1N1/NKNNB1b1/qb2pbbP/r2rNRn1/6p1/Pp3n2/3R4/1k3B2 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kb4 f4 b5 h4 g5 a6 c5 d6 g3 Kd5 g4 h5 c4 d7 g2 a7 c3 a3+ Ka5 f6 c2 f7 Ka4 h6 Kb3 f5 b4 f6 Ba6 Qe2 Rh7 Nd2+ Kc3 Rh5 b3 Rf5 Bc8 Ngf3 g1B Ne5 Rh8 Ra2 Na6 Kc6 Bg7 f8R Qe8 f7 Qd8 d5 Bf6 d6 Qa5 d8N Nc7 d7 Bg7 Ne6 Bb6 d8N Nb5 Nc7 Nf6 Rg8 Ba6 f8N Nh7 Nfd7 Ng5 Rb2 Bc8 Ra2 Qa6 Ne4+ Kd4 Nef6 Kc3 Bf4 c1B Rd2 Bb2 Bg3 Rh7 Bh4 Rh8 Rf8 Rh7 Ng8 Nd4+ Kd5 Ndf3 Ndc6 Bb7 Rb8 Ba1 Qb5 e6+ Kd6 Nh3 Be7 Nhg5 Re8 Rd8 a8B Bb2 Na7 Be4 Bb7 Ra8 Rd1 Kc2 Rd2+ Kb1 Rb8 Bd3 Kc6 Rh8 Rf6 Bg6 Bc8 B2d4 Rf5 Ba1 Ngf6 Rd8 Ng8 Bc3 Nf7 Bcf6 Nfe5 Qa4 Kb7 Qc4 Nf8 Rd5 Qe8 Qe2 Nfd7 Qb5 Nac6 Ra5 Na7 Qa6+
nNb3k1/p1BQr3/p4Bn1/n1K2N2/B2p4/1RB1r2P/nR1Pb1B1/3qN2R w - - 0 1 legal: proof: b4 e5 f4 h5 fxe5 h4 a4 h3 a5 Rh5 a6 bxa6 gxh3 Nh6 h4 Qg5 c3 Qd8 b5 Bb4 cxb4 Ng8 Bg2 Rh8 h5 Nf6 Bf1 Ng8 Kf2 Kf8 Ke3 d5 Kd4 f5 e4 g5 e6 g4 e7+ Kf7 e8R f4 b6 f3 b7 f2 b5 g3 e5 c6 e6+ Kg7 h6+ Kh7 h3 g2 b6 Qc7 e7 Nf6 Nf3 g1N Na3 Ne2+ Kc5 d4 Bb2 Nd5 Qa4 Nef4 Nh4 Ng6 Bg2 f1B Nc2 Be2 Nf5 Qe5 Rd8 Re8 Rab1 Kg8 Bc3 Nc7+ Rd5 Qh2 Ne1 Qg1 Rb2 Qf1 Re5 Qf3 Re3 Qh5 Kd6 c5 Qd7 c4 Kc5 Nc6 b8B Na5 b7 Qf3 Bb4 c3 h7+ Kf7 h8B c2 Ra3 c1N Bc3 Na2 Bf6 Kg8 Rab3 Qf1 Nd3 Qd1 Ne1 Nd5 Bg3 Nb6 Bc7 Rb8 Bf4 Na8 Bc7 Rf8 e8B Rf7 Qd6 Re7 Ba4 Be6 Qc6 Rbe8 b8N Bc8 Qb5 Re3 Qd7 R8e7
r7/1BB2qP1/NR4Q1/kN1pNqb1/rn1NB3/nK2pp2/3PR1n1/R5Nr w - - 0 1 illegal: No proof kernel
RnB1n2N/1BPbR1B1/r1p1Bppb/3K2Pb/rk3BQ1/1nr5/8/N4R1N w - - 0 1 illegal: No possible last move
N1r5/1pb5/kN1Npn2/1N2nr1Q/Nq1P2p1/r4RPn/B1R2R2/KB2B2n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 Be6 h5 Bf7 Nh3 Nd7 Ng1 Bg6 hxg6 Nb8 a4 Kd7 d4 Kc8 Kd2 h5 Kc2 c5 Kb2 c4 f4 h4 f6 b3 f7 h3 a5 h2 f5 Rh7 a6 Nc6 a7 Nb8 d6 Nd7 f6 Qb6 g3 Rh3 g7 Rh4 Bd2 Qb5 Ra2 c3+ Ka1 c2 Bd3 c1R Ne2 Qa5 Rf1 h1N Rf3 Rh2 Be1 Qa4 Nc3 Qb4 Rc2 Ne5 d7+ Kc7 d8N Kb6 Nb5 Rf2 Bg6 Rc8 a8N+ Ka6 Qe2 Rd1 Bh7 Rd2 N1c3 Rd3 Na4 Rf1 Qh2 g4 Qh5 b2+ Kb1 Nh6 g8B Ra3 Bd3 Bg7 f8N Nhf7 Nd7 Ng5 f7 Nh3 f8R Rf2 Ba2 e6 Ndb6 Bh8 Re3 Rf5 Rf3 Bf6 Nf7 Bd8 Nfd6 Bc7 Bd5 Rb3 Ka2 b1N Ka1 Ra3+ Ba2 Nc3 Rf6 Nd5 Rff2 Rg5 R6f3 Rf5 Rcd2 Rg8 Bb1 Rc8 Rc2 Nf6
1R1N2BQ/2K2b1N/2pn1n1N/B3R3/1q2B1pk/b1Rpn1n1/3PqR1P/3rR3 w - - 0 1 legal: proof: g4 e5 f4 exf4 b4 h5 gxh5 a5 a4 b5 axb5 a4 b6 Qe7 c4 Nf6 c5 Ra6 b7 Qd8 b5 Rb6 cxb6 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 e4 d5 h6 a3 h7 a2 Nf3+ Kh5 Bg2 g5 Bb2 g4 Nc3 d4 Nh4 d3 Rf1 c6 Rf2 f3 Nd5 f4 Nf5 Bb4 Nf6+ Kg5 Nh6 Bc5 Bc3 Bf8 Ba5 Na6 b8R Kh4 b7 Bg7 b6 Bd7 Kd6 Qe8 e5 Nc5 e6 Bf8+ e7 Ne4+ Kc7 Be6 Qb1 Nd6 Qb2 Bc4 Re1 a1Q Ra8 Qa3 b8R Qb3 b7 Qb4 Rd8 Bf7 b8R Nb7 Rd5 Nd6 Rff1 f2 Be4 f3 Re5 Qc5 Rb3 Qd4 Rc3 Qb4 Nh5 Nf6 Rb8 Rg8 h8N Rg5 Qa1 Rf5 Qb2 Nh7 Nf6 Rf4 Rg1 f1N Rg2 f2 Qa1 Ne3 Qb2 f1N Rf2 Bg8 N8f7 Ng3 Nd8 Bf7 Qa1 Ng5 Nh7 Rf3 Rg2 Rf1 Rf2 Rh1 Ree2 Rd1 Re1 Nh3 Qb2 Nf4 Qa1 Nfh5 Qb2 Bb3 Qa1 Nf6 Qb2 Qh5 e8B Bf7 Bd7 Qf5 Be6 Qf3 Qa1 Bg6 Bg8 Bf7 Qa2 Qe2 Qe6 Nc8 Qe8 Bc5 Qf8 Nd6 Qg7 Qd4 Qh8 Ba3 Bd5 Qc5 Be4 Qb4
b1r2n1Q/r1n5/NP3qqN/4BBB1/k3pR1R/3K2n1/nBpBPN1p/2R5 w - - 0 1 illegal: No possible last move, all moves rejected
B3NBk1/4Prpb/4rnRq/pB2p3/2r1q1BB/P5R1/2n4r/N1K1NRQ1 w - - 0 1 legal: proof: f4 d5 e4 dxe4 b4 h5 g4 c5 bxc5 Rh6 gxh5 Rh8 f5 e6 f6 Qd5 Bb2 Be7 Be5 Bd8 Bd6 Kd7 Bf8 Be7 fxe7 Qd6 Nh3 Qb6 Ng1 Qd8 h4 Ke8 d4 b5 Kd2 a5 c4 f5 h6 Kf7 h7 b4 c6 e5 a3 b3 c7 f4 c5 f3 d5 f2 d6 b2 d7 Nh6 c6 Rg8 h8N+ Kf6 h5 Ra6 Nf3 Ng4 h6 Rb6 h7 Rb3 Rh6+ Kf5 Nf7 Ne3 h8R Ba6 c8B Rb6 c7 Nc2 Bb7 Re6 Ba8 Bd3 R8h7 Qe8 d8B Rh8 Qe1 Nd7 Nd6+ Kf4 Qd1 Qh5 Ne8 Kf5 Be2 Qg6 Qg1 f1R Rh3 Rf2 R7h6 e3+ Kd1 Ne1 Nbd2 Nc2 Qf1 Be4 Bb5 Qf6 Nb3 e2+ Kd2 Qh4 Qh1 Rh7 Rf1 Qf6 R6h5+ Kg6 Qg1+ Kf7 Rh6 Kg8 Na1 Qh4 Rf6 Rh5 Rh6 Bh7 Rg6 e1Q+ Kd3 Qc1 Ne1 Rf7 c8B Qe4+ Kc3 Nf6 Bb6 Rd6 Bg4 Re6 Bf2 Qh6 Rf3 Rh2 Bh4 b1R Rh3 Rb4 Rg3 Rd4 Kb2 Rc4 Kb1 Qh5 Kc1 Qh6+
5R1r/bK3b1n/2n2N1b/4b1Rp/1BpNpk2/2P1NN2/r1R1B2P/1NB3nQ w - - 0 2 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 e3 Qd7 fxe5 f4 e4 Qf5 gxf5 dxe4 Ke2 Ke7 b4 a5 d4 h5 c3 c5 f6+ Ke6 b6 Kf5 f7 g5 e6 f3+ Ke3 f2 d5 c4 Kd4 a4 b5 g4 b7 a3 e7 a2 Kc5 g3 Kb6 g2 e8N Ra7 d6 Bd7 Nf6 Nc6 b8R Ne5 Ng4 Rh6 Be2 f1N Nf3 g1B+ Ne3+ Kf4 Rc8 Ra3 Kb7 Nd2 b6 Be8 d7 Ra5 d8N Bg7 f8B Bf7 Bb4 Nf6 Nc6 Nh7 Ncd4 Nc6 Rf8 Be5 Qf1 Bf2 Rg1 Ra4 Rg5 Ra8 Ne1 Nf3 Qh1 Ng1 Nef3 Ra7+ Kc8 Ra5 b7 Ra6 b8N Ra8 Na3 Ra6 Rb1 a1B Nd7 Bb2 Nf6 Ra5 Ra1 Ra4 Nb1 Ra2 Kb7 Ba3 Ba5 Bc5 Bb4 Ba7 Na3 Be1 Rb1 Bd2 Rb2 Rg6 Rc2 Rg8 Nb1 Rh8 Rgg8 Be1 Rg7 Bh4 Rgg8 Bg5 Rg6 Bh6 Rg2 Bc5 Rg5 Ba7
kB1nN2n/5B2/2N2pq1/b1P2pN1/RNpBr1P1/p2N3b/1KRbr3/6RQ w - - 0 1 illegal: No possible last move
3b1BK1/1P3pQP/1n1r2RR/2RNB2N/R2R4/p1p1Nnbr/1qb2pB1/k7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 e4 c5 h4 g5 h6 a4 b6 c4 h7 c3 h5 g4 b7 g3 d6 g2 d5 f3 d7 f2 d6 Na6 b8R+ Bb7 h6 Ne7 Kf6 Nc7 e5 Ra5 e6 Qe8 d8R Rh5 d7 Rg8 h8B Rc5 h7 Nc8 e7 Rcg5 Qg4+ Kb3 Rh6 Kc2 b4 Bd5 b5 R5g7 b6 Ba8 Na3+ Kb3 Ne2 g1B Ng3 Rg5 Nh5 Bh1 b7 Bd5 Nc2 Ne6 Ne3 Be4 Ba3 Nb6 Rbc8 Bh2 Bg2 Bg3 Rc5 Rd5 Qg7 Nd4 Rb8 Bf5 d8R Qb5 e8N Nf3 Nc7 Bc2 Ra2 Rd4 Ncd5 Bfd6 Ra8 Bc7 Ra6 Rh4 Rd6 Rd8 Ke7 Rd7+ Kf8 Rh3 Kg8 Bd8 Rdg6 Rd6 Bb4 a3 Ra4 Bb1 Rd2 Bc2 Rd4 Kb2 Rc8 Re6 Bf8 Rd6 Rc5 Ka1 Qf6 Qe8 Qg5 Qd7 Be5 Qb5 Qf6 Qb1 Qg7 Qb2
R3Rb1N/n3Rb1q/2k4p/1N1qR1B1/r2R1Bpp/1N3B2/P1P1p1KQ/1r2n3 w - - 0 1 illegal: Other
Q3N2R/pPb1R3/1pr5/3krBR1/2b1N3/N1pr1pqR/P1b4B/2KRnB2 w - - 0 1 illegal: No proof kernel
1kn5/4ppK1/1NRbBN1n/N3Pr2/B4R1p/2b3Rp/1Nb2Pr1/1Nr2Q1B w - - 1 2 legal: proof: c4 d5 cxd5 g5 h4 b5 a4 Bg4 axb5 Bf3 h5 Be4 b3 Bf5 Bb2 Bc8 g4 Bh6 Bf6 Bf8 h6 Bd7 Be5 Bg7 Bg3 Bf8 Bh4 gxh4 g5 Bc8 g6 Qd6 Ra2 Qe5 Ra1 Qg7 hxg7 Ba6 Ra2 Bb7 Ra1 Bc8 d4 Kd7 Kd2 a5 Ke3 c5 Kf4 Kc7 Kg5 h5 e4 c4 e5 h3 b4 h4 d6+ Kb7 b6 a4 d5 a3 d7 a2 d8R c3 d6 c2 b5 c1R d7 Nc6 Bg2 Ra6 Qf1 Rc2 Ne2 Nh6 g8B Rc3 g7 Rc1 Nec3 Kb8 b7 Nf5 Bh7 Na5 g8B Nh6 Rg1 Re1 Na4 Bg7 Bh1 Ng4 Nb2 Re4 Rg3 Rc4 Bc2 Ra4 Bgh7 Ra3 Bhf5 Nh2 Be6 Nc6 Ba4 Rg8 Rf8 Na7 d8N Bf6+ Kh6 Ng4+ Kh7 Rf3 Nc6+ Kc7 b8N Rf5 Re8 Bg5 Nd7 Bc1 Nb6 Nh6 Na5 Kb8 Rd8 Bd2 Rd6 Bb4 Rc6 Rg4 Kh8 Bd6 Kh7 Rc4 Kg7 Rc5 N6c4 Bd7 b6 Nc8 b7 Be8 Nb6 Rc1 Rcc3 Bb5 Rc7 Bd3 Rc6 Ka7 b8N Bc2 Nd5 Ka8 Nd7 Ka7 N7f6 Kb8 Rg4 Rb6 Rf4 Rb3 Nb6 Rg3+ Rg4 Rg2 Rg3 Re1 Nd2 Rd1 Rc1 a1B Nb1 Rd3 Re1 Rd1 Re4 Re1 Rf4 Rc1 N2c4 Bd4 Nb2 Bc3
2NqrQ2/1NRr1R1R/Kp1bBR1B/5nnR/PB1pqp1N/3P2p1/6p1/6k1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 fxe5 b6 c4 Ba6 c5 Nf6 c6 Bb7 cxb7 Ng8 e4 Ke7 Ke2 Ke6 Kd3 g5 Kc4 c5 Kb5 f5 h4 d5 a4 d4 h5 g3 a6 g2 a7 g4 h6 c4 h7 c3 Nf3 c2 Bc4+ Ke7 d3 g3 e6 Kf6 e7 Nc6 e8R Qd6 b8B Ne5 Nc3 Qa3 Nd5+ Kg6 Rc8 Nc6 e5 Qa2 e6 Nge7 Rc7 Ng8 e7 Nd8 e8N Nb7 Qf1 Ne7 Nh4+ Kh5 Bh6 Kg4 Nd6 c1Q Ka6 Nd8 Nb7 Qe2 Qf2 Qcc2 Raf1 Ne6 Ba2 Rg8 h8R Ng5 Rh7 Qe4 Rf7 Rg7 Bc4 Nc8 Ne7 Nd6 Nc8 Qc1 Rf6 Rd7 Be6 Qc5 Rh3 Qcd5 Rh2 Rd8 Rh7 Rd7 Bc7 Rb8 a8R Be7 Ra7 Bf8 Ne7 Re8 Nc8 Be7 Rc1 Bf8 Rc5 Be7 Rh1 Bf8 Rf1 Kh3 Bd8 Kh2 Be7 Qb3 Qf4 Qbd5 Rf2 Kg1 Rb5 Nc4 Bb4 Bd6 Rc2 Ne3 Rc7 Bc5 Qd6 f4 Qf8 Qd6 Ra5 Qe7 Rhf7 Bd6 Re5 Qd8 Rec5 Nh7 Rh5 Ng5 Rh7 Nf7 Rcc5 Nf5 Na5 Rde7 Rd7 Ne3 Rcc7 Ng5 Nb7 Nf5 Bc4 Re6 Rdf7 R6e7 Be6 Rd7
2R1r1nn/RNN2RNb/1Qp1r3/K5q1/1N1p3b/k2PrB1b/2P2BB1/2qb3N w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 f4 a5 g4 e5 b4 Ke7 g5 Kd6 g6 h5 d3 e4 Kd2 e3+ Kc3 a4 f6 e2 f7 e1Q+ Nd2 a3 b6 c6 b5 Kc5 f5 d5 g7 h3 f6 h2 b7 a2 b6 h4 Nh3 Qde7 Nf2 h3 Bg2 Qc7 Rf1 Rh7 Nh1 Qh4 Nb3+ Kb5 Nc5 Qg5 Be3 Qcf4 Bf2 Nd7 b8R Qc1 b7 Be7 f8N Rh6 f7 Ne5 Nfe6 Ng6 f8N Nh8 Nc7+ Ka5 Qg4 Re6 Qd4 Bd7 Rc8 Bf6 Rb1 a1R b8N Ra4 Kb3 Be7 Qb2 Rae4 Nba6 d4 Nb4 Re3 Kc4 Rb8 Nb7+ Ka4 Bf3 Bd6 Bg2 Bg3 Bf3 Bh4 Bg2 Ne7 g8B Ra8 Bf7 Ng8 Bh5 Rb8 Bhf3 Ra8 Na2 Rb8 Qb6 Ka3 Nb4 Ra8 Ng3 h1B Rb2 h2 Rb1 Rg6 Nfe6 Rf6 Ng7 Bh3 Be2 Rfe6 Ra1+ Kb2 Ra7 Rb8 Bd5 Be4 Bf3 h1B Bg2 Bh7 Bdf3 Kb1 Kb3 Ra8 Ka4 Kb2 Bd5 Rb8 Ka5 Ka3 Bf3 B1g2 Nh1 Bg4 Be1 B2h3 Bg2 Bh5 Rf7 Bd1 Bf2 B7f5 Rcf8 Rbe8 Bdf3 R8e7 Rb8 Re8 Rc8 Bh7+
2b5/n1b1R1R1/1R3ppQ/rr1brb1B/k1q1NR2/4n1PN/q3BP2/B1R1K1N1 w - - 0 1 illegal: No proof kernel
4nr2/q5K1/1b2p1p1/1pB1P2B/1PNRr1Nk/1brR2n1/1bR3Qq/B2R2NR w - - 0 1 illegal: No proof kernel
1R2n3/qqRRB1BB/k1N3b1/rN3p2/b1p5/2b2rQ1/2PB1PpK/2NrnB2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 g4 hxg4 axb5 Ba6 Qd3 Bb7 Qd1 Bc8 h4 a5 e4 d5 b4 Kd7 h5 g5 h6 f5 b6 Kc6 e6 Kb7 h7 c5 e5 c4 e7 d4 e8R g3 b5 d3 e6 g4 e7 g2 Nc3 d2+ Ke2 g3 Kf3 a4 Nge2 g1R Rh4 a3 Rd4 g2 Kg3 a2 Kh2 Na6 Rd7+ Nc7 Qe1 d1B Bd2 Ra5 Nc1 Nf6 Qe3 Nh5 Qg3 Bg7 Rb1 Rg8 h8B a1Q Rf8 Bd4 e8B Nf4 Bg6 Qe7 Bg7 Bh5 Rf7 Nd3 Bh7 Bg6 Rb2 Ne1 Rb3 Kb8 b7 Ka7 b6+ Ka6 b8B Ne8 Nb5 Bc3 b7 Rh8 Rc7 Bd7 Ba7 Qb1 Bc5 Qe3 Be7 Qa7 Na3 Ba4 Nb5 Rg8 b8N+ Kb6 Nc6 Ka6 Nd6 Rh8 Rb8 Qbb7 Nb5 Rg8 Bef8 Rh8 Rfd7 Rg8 Bf6 Rg7 Bd8 Re7 Bfh6 Re3 Be7 Rf3 Bg7 Nd3 Be2 Rd1 Bf1 Ne1
2qNKN2/1bp3R1/B1P1p2b/Rbr4b/r2BP1N1/knnnNp1R/8/2NB3Q w - - 0 1 illegal: No possible last move, all moves rejected
4Q3/B1K1n1r1/P2B3q/r1n1R1R1/1rN1N3/1B2NPq1/3B4/kb1Q1qBq w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 h5 gxh5 e6 a4 b3 Qxb3 Qg5 a5 Ba3 Qd1 Bb2 Bxb2 Qe7 Bc1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 g5 h4 c5 d4 b5 f3 b4 d6 g4 h6 b3 h5 e5 Kd5 b2 h7 g3 d7 e4 Kd6 g2 h6 e3 d5 c4 a6 c3 Rh5 c2 Rg5 e2 Ra5 e1R Ne2 g1Q Nf4 Nc6 Ng2 Qh1 Nc3 b1Q Bc4 Qh5 Ne3 Rg1 Ne4+ Kf7 f6 Nb8 Bd2 c1Q Bb3 Qh1 Re5 Kg6 f7 Qg5 d8B Ne7 f8B Nd7 Bb6 Rb8 Ba7 Nc5 Kc7 Rb4 d6 Bf5 d7 Qg3 d8Q Rg8 h8B Rg7 h7 Rf1 Nd6 Kf6 Qe8 Qa1 Rb5 Bb1 Ndc4 Rf2 Be1 Ra2 Bd2 Qc2 Ra5 Qcg6 Rb5 Qgh6 Ra5 Nd7 Rb5 Ra5 Rd5 Ng8 Bd6 Ne7 Rg5 Ke6 Rdf5 Nc5 Rd5 Rg6 Bd4 Rg7 h8N Qf1 Nf7 Qfh1 Rh5 Qf1 Rdg5 Qh1 Nf5 Kd5 Bf2 Qf1 Nfe3+ Kd4 Bg1 Kd3 Bc1+ Kc3 Re5 Qb2 Rhg5 Qbh2 Bd2+ Kd4 Rg6 Qh1 Ng5 Kd3 Ne4 Kd4 Rgg5 Kd3 Nf2+ Kd4 Bc1+ Kc3 Nb6 Qe6 Bd2+ Kb2 Ne4 Qeh6 Nbc4+ Ka1
3nR2B/QBR1pqbb/Q2Rr1rr/3n3P/1k5N/2RQ4/5RP1/3r1NK1 w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 f4 d5 fxg5 a5 c4 h6 gxh6 Kf7 cxd5 Ke8 a4 axb4 axb5 Bd7 Ra2 Be6 Ra1 Bc8 Kf2 Kd7 d4 Kd6 h4 c5 h7 b3 f6 b2 b6 c4 b7 c3 f7 c2 h5 Qa5 Ba6 Nh6 Qe2 Bg4 Nd2 b1R Rh3 Rg8 h8R Nf5 Ngf3 Qd8 Nh4 Bg7 f8R Qc7 Bb2 c1R Nf1 Qc8 Kg1 Ne3 Rf2 Rd8 Re8 Nc6 b8Q+ Qc7 Qb6 Bh6 Bb7 Ra6 Qa7 Re1 Qc4 Rbd1 Rc1 Rb6 Qca6 Bf5 Rg3 Bh7 Rgf3 Kd7 d6 Ke6 d7 Kd5 Rg3 Qf4 Ba1 Kd6 d5 Qf7 Bh8 Bg7 Rc4 Rc8 Rcc2 Rc7 d8Q+ Rd7 Rb2 Kc5 d6 Rc7 Rbc2+ Kb4 d7 Re2 Qc8 Ree1 d8R Nd5 Qh3 Re4 Rd7 Nd8 Rc6 Rg4 Rgc3 Rg3 Rcf6 Rcc6 Rc7 Rg4 Qhd3 Re4 R6f5 Rh6 R5f3 Rbg6 Rf6 Ree1 Rd6 Ree6
1k2bQ2/N1np1B2/r1R1r1R1/b2PRP2/2NR2n1/K7/nB3n2/rQ4BR w - - 0 1 legal: proof: b4 a5 g4 f5 a4 h5 gxh5 c5 bxc5 b5 e4 b4 exf5 Qb6 c4 Qb5 axb5 a4 c6 Nxc6 c5 Nb8 Rxa4 Ra7 Ra1 Ra8 d4 Kd8 Kd2 Kc7 Kc2 g5 Kb2 e5 f4 g4 h4 b3 f6 e4 c6 e3 h6 e2 f7 e1N b6+ Kd8 f5 g3 c7+ Ke7 h7 Kd6 b7 g2 h5 Ra5 h6 Nf6 Be3 Ra3 Ne2 g1R Nec3 Na6 b8R Rgg8 Rb5 Ng2 Bc4 Nf4 Bg1 Ng4 Re5 Bb7 c8R Bd5 Nd2 Nc7 Qb1 Ra6 Ra4 Nh3 Ka3 b2 Ba2 Be7 f8Q Nhf2 Bb3 Bf3 Bf7 Rg6 d5 Rhg8 h8R Re6 h7 Rg5 Qe8 Bd8 Rg8 Rh5 h8B Rh3 Rg5 Rg3 Bh2 Rg1 Rg6 Rd1 Bg1 Rf1 Qa2 Ra1 Bg7 Nf6 Qg8 Bh5 Qh8 N6g4 Nc4+ Ke7 Nb5 b1N+ Kb4 Nc3 Qb1 Na2+ Ka3 Nd1 Na7 Ndf2 Nb2 Kd6 Qg8 Kc5 Qf8+ Kb6 Bh8 Kb7 Bf6 Na8 Rc6 Ba5 Rd4 Nc7 Bg5 Nh6 Bc1 Nhg4 Nc4+ Rb6 Bb2 Ra6 Rg7 Bg6 Bg8 Bf7 Rg6 Be8 Bf7 Kb8
BQ4N1/p1NB3Q/2r1PR1r/KpRn1rRB/1q2b2P/3B4/B1r4k/5q2 w - - 0 1 legal: proof: f4 d5 g4 g5 fxg5 e5 c4 d4 g6 d3 g5 e4 g7 e3 dxe3 h6 e4 d2+ Kf2 Bd6 e5 Be7 Qb3 d1N+ Ke1 Nc3 Qd1 Nd5 cxd5 Bf8 b4 c5 a4 b5 g6 c4 a5 Bc5 bxc5 Nd7 Bg5 Nb6 axb6 hxg5 Kd2 Ke7 Kc3 f5 Kb4 c3 e4 f4 h4 c2 e6 Kf6 c6 Ke5 d6 c1Q e7 g4 e8B g3 c7 g2 d7 f3 b7 Kf4 b8Q Kg3 e5 f2 Ne2+ Kf3 Nf4+ Kg3 Nc3 g1R Ncd5 Ba6 c8B Rg2 Qd3+ Qe3 Rc1 Bb7 Rc5 Rh6 Nf6 Bf3 Rg1 Bc6 Ne6 Kh3 Nc7 Rh8 Ka5 Qe7 d8R+ Kh2 Bcd7 Nh6 g8B Qd6 g7 Qh3 Bh5 Nf5 Rf8 Be4 Ba2 Rh6 g8B Ne7 Bgd5 Rgg6 Bb7 Nd5 Ng8 Rg2 Bfe2 f1R e6 Rf5 Rf6 Rgf2 Qb1 Qf1 Bd3 Rc2 Rg5 Qf8 Qd8 Rb8 Ba8 Rb6 Qb8 Rc6 Qd1 Re5 Qf3 Qe7 Qf5 Qf8 Qh7 Rf5 Rc3 Qc5 Rc4 Qd4 Rc5 Qb4#
1r1Q2Rb/2P2NqK/2B1PRB1/R2Q1p2/2r5/Rp3p1b/2N2pN1/1R1r3k w - - 0 1 illegal: Other
3kN1N1/1K4b1/1bQb3Q/3B2nB/R2rP3/1RNNqr1P/2n3N1/2rn2Rn w - - 0 1 legal: proof: g4 d5 f4 e5 fxe5 b5 c4 f5 cxd5 f4 a4 h6 axb5 Qd6 b3 Qd7 Ba3 Qd8 Be7 Be6 Bg5 Bf5 gxf5 hxg5 Kf2 a5 Kf3 c5 Ke4 a4 d4 a3 d6 c4 Kd5 g4 e4 g5 d7+ Ke7 e6 f3 h3 c3 b6 f2 b4 c2 b5 c1N b7 a2 b6 g3 Bc4 f1N Qc2 g4 Nf3 g2 Nh4 g1R Nc3 g3 Ng2 Qe8 d8N Bg7 f6+ Kf8 f7 Ke7 Nc6+ Kf6 f8Q+ Qf7 Ne5 Ra4 Nd3 Na6 Kc6 Ne3 b8N Ne2 d5 Nh6 e7 Rc1 e8B Nd1 b7 Nb4+ Kb6 Ra3 d6 Rh7 Qa4 Nc2 Qc6 Ra4 Be6 Rd4 d7 Rh8 Qfd6 Rf8 d8N Qd7 Bg6 Nf7 Na6 Ng5 b8R Rf7 Qf4+ Ke7 Bd5 Qg4 Rg1 Qf3 Ka7 Qe3 Bh5 Rf5 Qh4 Rf3 Kb7 Be5 Nf7 Bd6 Ngf4 g2 Nc7 Ng3 Nh6 Nh1 Ne8 Ba3 Bdf7 Bc5 Bd5 Bd6 Ng8+ Kf8 Rb1 a1B Rb4 Bb2 Ra4 Ba1 Re1 g1B Ng2 Bf2 Rg1 Bb2 Ngf6 Ke7 Qf4 Ne6 Qh6 Ng5 Ka7 Ba1 Rb3 Kd8 Ng8 Be1 Nb1 Ba5 Kb7 Bb6 Nc3 Rc4 Na2 Bg7 Nc3 Rd4
QRn3bb/rr1B3N/2N2q2/BKn2B1Q/N1P4N/7b/kN1R2P1/2rrn3 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 e4 c5 exf5 b4 d4 cxd4 a3 Qb6 axb4 Qc7 b5 Qd8 Kd2 Kf7 Kd3 e5 Kc4 h5 f4 d6 f6 Ke6 b6 d3 a6 d2 a7 h4 f7 e4 g6 h3 b7 e3 g7 h2 f5+ Ke5 f6 e2 Nh3 e1R Nc3 Nd7 b8N Rh7 Rb1 Nc5 Na4 Ne7 g8B Bg7 f8N Bh8 Nf2 Bh3 f7 Nc8 Bd3 Qf6 Bf5 d5+ Kb4 Kd4 Qh5 d1N Nd3 Nb2 Bd2 Rc1 Rd1 h1R Ng6 Rf1 Ka5 Kc4 Nc6 d4 f8N+ Rf7 c3 Kb3 Nh4 Ka2 Nh7 Rb8 a8Q Rb4 Nde5 d3 Nc4 Rd7 Be1 d2 Bge6 Nbd3 Rb3 Rc7 Bd7 Rb8 Rb6 Ra7+ Kb5 Rh1 Ncb2 Rg1 Bg3 Rh1 Bc7 Rf1 Re1 d1B Re2 Bb3 Rd2 Bg8 c4 Rfd1 Bd8 Ne1 Bc7 Rbb7 Bd8 Rc7 Rb8 Rcb7+ Bb6 Rc7 Ba5 Rcb7+
4R1qb/1P4NR/3RN1nQ/N1q1PRK1/2rrrB2/4n1rR/1br5/1Q2Bk2 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Be6 Bh3 Bf5 gxf5 Qe7 Bg4 hxg4 Qb3 Qd6 Qd1 Qd8 Kf2 Ke7 b4 c5 d4 g5 e4 a5 h4 f3 Ke3 f2 e6 Kd6 h5 f1R e5+ Ke7 b6 g3 b5 c4 b7 g2 h6 a4 h7 c3 b6 c2 Nh3 g1R Ra3 g4 Nd2 g3 Nc4 g2 Nf4 Ra6 Na5 Nd7 b8R Ndf6 b7 Rf2 Rb3 a3 d6+ Ke8 e7 Kd7 e8R a2 d5 a1B Nh5 Bb2 Ng7 Ne7 Rc3 Rd2 Kf4 Rd4+ Kg5 Ng4 f6 Ne3 f7 Rc6 Rh6 Rg8 h8Q Re1 Rh7 Rcc4 Bd2 Qc8 Qb1 c1R Ra8 Qc7 Ra6 Qc5 Ra3 Re2 Be1 Ng6 Rc6 R1c2 Rb6 Ng4 Rah3 g1Q Rc6 Qg3 Ra6 Qb3 Rb6 Ree4 Rc6 Nf6 Rb6 Be7 f8R Ng4+ Rf6 Bf8 Rf5 Ne3 Re6 Kd8 d7 Kc7 d8B+ Kd7 d6 Be7+ Kh6 Bf6 Re8 Qa2 Nh5+ Bg7+ Kg5 Qb3 Be7 Ke6 d7+ Kd5 d8N Qa2 Ne6 Qb3 Rh6 Qa2 Qh7 Bh8 Nhg7 Rf8 Kh5 Rb4 Rff3 Ref4 Bg5 Rfe4 Nd8 Qac4 Rf1 Rf3 Rf6 Rg3 R1f5 Qa2 Bf4 Ra4 Nb3 Kc4 Na5+ Kd3 Rd6 Qg8 Nde6 Ng4 Kg5 Ke2 R6h5 Rac4 R5h4 Ne7 Qg6 Kf1 Rh7 Ne3+ Kh4 Rf3 Qh6 Ng6+ Kg5 Rg3+
Nn2rRqk/P1q2B2/1r2N3/Q3n1bq/2qq3R/3Pb1B1/BK4B1/1QNB4 w - - 0 1 illegal: No possible last move
1qQ1rb1q/R3n2B/4N1BQ/2n2b2/2BB1PP1/1q2Br2/1N2Qb2/1k1b2RK w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 c4 d5 cxd5 b4 e4 fxe4 a3 Nh6 axb4 Ng8 b5 Ba6 Nc3 Bb7 Nb1 Bc8 f4 Kf7 Kf2 Kg6 d4 Kf5 d6 c5 d5 e5 g6 h5 b6 h4 d7 h3 b7 h2 g7 c4 d6 c3 a6 c2 a7 Rh5 Qe2 Ne7 g8B Na6 b8Q Rh3 Na3 Nc5 Be3 c1Q Qb6 Qd1 Nc4 Qb3 Nf3 Rg3 Rg1 h1B Ng5 Rf3+ Ke1 Qc7 d8B Qb8 Nb2 Be6 Bd4 e3 d7 e4 g3 Bg2 Qba6 Bh3 Bb6 Bg4 d8Q Bd7 Qdc8 Be6 Qh2 e2 Qh6 Bd7 Ne6 Bh5 Kd2 e1B+ Ke2 e3 Ra3 Ke4 Bh7+ Ng6 Qc4 Bf2 Qb5 Bg4 Ra1 Bf5 g4 Ne7 Qba6 Ba4 Qb5 Qe5 Qba6 Rb8 Ra2 Qh8 a8B+ Qd5 Bc6 Bc2 Bb5 Qb3 Bc4 Ra8 Bg2 Bd1+ Kf1 Rb8 Bh1 e2+ Kg2 e1Q Qb5 Ra8 Ra7 Qec3 Be3 Qce5 Kh2 Qb8 Bg2 Na4 Bbd4 Nc5 Kh1 Qb6 Qcd7 Re8 Qc8 Qb8 Bgf1 Qb4 Ba2 Qa4 Qe2 Qab3 Bb1+ Kd5 Nd3 Kc4 Nb2+ Kb4 Rd7 Ka3 Ra7+ Qa4 Bd3 Ka2 Bc4+ Kb1 Bg2 Rg3 Be4+ Qc2 Bg6 Rf3 Bh7 Bg6 Ba8 Bd3 Bae4 Qcb3 Beg6 Bf5
1r5Q/kq3Q2/2bR3R/1Br1R1bP/2nK2q1/nNBnn3/qP1R4/3N1NR1 w - - 0 1 legal: proof: g4 f5 a4 b5 axb5 a5 bxa6 d5 e4 h5 exf5 hxg4 c4 Nc6 cxd5 Nb8 Ke2 Kd7 Kd3 c5 f4 Kc7 h4 Kb6 a7 e5 f6 g5 d6 g3 f5 g2 d7 g4 f7 g3 f6 Bb7 Nf3 g1Q Nc3 g2 Nh2 Qc7 d8R Nh6 Qh5 Nd7 Nd1 Be7 f8N Bc6 f7 Qb7 Ne6 Nf5 f8Q Bg5 Qff7 Ne3 Nd4 Rb8 a8R e4+ Kc3 c4 R8a5 Re8 Nb3 Ne5 Rd6 Rec8 Kd4 c3 Bb5 c2 Qh8 N5c4 Nf1 Qf2 d3 g1Q Bd2 c1N Bc3 Qg4 h5 Qc2 Rg1 Qb1 Rh6 Qa2 Rg2 Rc7 Rd2 Bh4 Ba4 Rcc8 Re5 Ka7 Bb5 Bf6 Kc5 Bd8 d4 Bg5 d5 Nd3+ Kd4 Qg3 d6 Bd7 Ba4 Ng4 Nfe3 Rc5 Nf2 Bc6 Rg1 Qh4 Nf1 e3 d7 e2 d8R e1N Rdd6 Nge3+ Qf4 Qg4 Bb5 Nd5 Nd1 Nc2+ Ke4 N2a3 Kd4 Qe6 Qf3 Nde3 Qf7 Qg4+
2KQqr2/1NnB1n2/k2b1r1P/1q4QQ/5R2/2nqQ1P1/2n2NRN/2Q1b1B1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 Nc3 h5 Nb1 g5 Ra2 g4 Ra1 g3 hxg3 Bg7 Nf3 Bh6 Ng1 Bf8 Nf3 h4 Ng1 h3 Kf2 h2 Ke1 Bh3 gxh3 Qd7 Ra2 Qc8 Ra1 Qd8 Kf2 Kd7 Kf3 Kc8 Ke4 Kb7 Kf5 a5 e4 c5 d4 a4 b4 f3 d6 a3 d7 f2 d5 c4 d6 f6 Ke6 f5 e5 f4 b6 f3 b5 c3 h4 c2 h5 a2 h6 Nf6 Nd2 Ne8 Bh3 f1Q Ne4 f2 Be3 c1Q Nf3 Qa3 Rg1 h1N Rg2 Qg1 Nh2 f1N Qh5 Qh4 d8N+ Kc8 Bg4 Nd7 b7+ Kb8 Bf2 Ne3 Rf1 Ka7 b6+ Ka6 b8Q a1B b7 Ra7 Qc8 Qg5 Qc1 Nc2 b8Q Bc3 Bb6 Rb7 Rf4 Nf2 Qc7 Nd1 Qc5 Rc7 Nb7 Rc6 Qd5 Qe1 Bg1 Qe3 Nf2 Be1 Bh3 Qad3 Bg4 Ndf6 Qc5 Nh7 Kd7 Nc3 e6 Qee4 e7 Nc7 e8Q Be7 Qe5 Rf8 Kc8 Qa4 d7 Rcf6 d8Q Bd6 Qeg6 Qe8 Qee3 Qgb5 Bd7 Ng5 Qg7 Nf7 Qgg6 Rg8 Qgg5 Rf8
2nk1qB1/rr3RBQ/r1Kn1bPr/R7/1Q2NQ2/2Rn3N/q2P1QQ1/7b w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 e5 Kf3 h5 Ke4 c5 f4 h4 g4 b3 g6 c4 f6 h3 g5 c3 f5 c2 g7 h2 g6 b2 d6 Rh3 Kd5 e4 f7+ Kd7 b6 e3 b7 e2 f6 e1R Qg4+ Re6 Bc4 Raa3 Nc3 b1Q Bb2 c1R Qg2 Nh6 g8Q Bg7 f8R Ra4 f7 Qa2 Qh7 Bf6 Ne4 Rb1 Bb3 Rh4 Nh3 Nf5 Rc1 h1N Rc3 Ra7 Kc5 Rh6 Kb5 Na6 b8Q Nb4 Kc5 Nd5 Qb4 Nf2 Bc4 Qa6 Ra5 Bb7 Ba2 Kc8 d7+ Kc7 Bc4 Nb6 Ba2 Bd5 Ba1 Nd6 Bb2 Qa8 d8Q+ Kb7 Qe8 Kc7 Qeb5 Qe8 Qe2 Kd8 Qeg4 Bb7 Qf4 Bc6 Rg8 Bd5 f8Q Bb7 Qff7 Qf8 Rg7 Bd5 Ng3 Bf3 Ne4 Nd3+ Kc6 Qc4+ Rc5 Qb3 Ra5 Qa3 Bc4 Qa2 Ba1 Bh4 Q7f5 Bf6 Rf7 Rb2 Q5g5 Rb3 Qf2 Bh1 Qgg1 Ra6 Qgg2 Re7 Rg7 Ra3 Bg8 Rb7 Rf7 Raa7 Rb5 R3a6 Ra5 Bh4 Rc2 Bg5 Bg7 Bf6 Rc3 Nbc8+
1k6/3R3r/b1nP1qK1/1B2qR1N/bR1Q3R/Q1Q2rn1/3PnnRB/r2N4 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kf3 a5 Ke4 h5 b4 e5 b6 c5 f6 a4 Kf5 h4 b5 e4 f7 a3 f8R h3 g7 h2 g6 e3 d6 f3 b7 a2 b6 e2 Nc3 e1Q Nge2 f2 Ng3 c4 Qf3 Qe3 Nh5 Qee7 Bb2 Ra7 Nd1 c3 Bb5+ Nc6 b8Q f1N b7 c2 Qa8 c1N b8R Rh7 Qc3 Nf6 g8Q Ng4 g7 Ra3 Qd5 Qe5+ Kg6 Nf2 g8R Ne2 Qdd4 Nfg3 Rf5 Ba6 Rb1 a1R Rb7+ Qc7 Qaa7 Rb3 Rg7+ Kc8 Rg8+ Qd8 Rd7 Qf8 Qac5 Kb8 Qa3 Ng1 Qcb4 Rf3 Qbc3 Ra2 Ba1 N1e2 Rb4 Qd8 Rh8 Qf8 Rg1 h1B Rg2 Qd8 Bb2 Ra1 Re8 Qd5 Re4 Qe5 Rh4 Re3 Rg1 Be4 Rg2 Rf3 Rf7 Bd3 Rd7 Bc2 Qcb3 Ngh1 Qg4 Qc5 Be5 Qd5 Qc3 Ba4 Bf4 Qe5 Bh2 Nhg3 Qgd4 Qdf6+
1kb4R/2q2Q2/1P2n3/1qQK1nBR/nqr1N3/1Q3PB1/1QN2qQ1/B1rb4 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 g6 h4 b4 h5 b3 axb3 Kd7 b4 Ke8 b5 Bg7 Rh2 Bh6 Rh1 Bf8 g4 Bd7 g5 Bg7 h6 Be6 hxg7 Nd7 Be2 Ngf6 Bh5 gxh5 g6 Nb8 g8Q+ Kd7 g7 Kd6 Nf3 Bc8 Ng1 Kd7 Ke2 a5 Kf3 c5 b4 Kc7 d4 e5 Ra3 c4 Nc3 e4+ Ke3 a4 Ra2 a3 Re2 h4 Ra2 h5 Nf3 h3 Qb3 h2 Qf7+ Nfd7 g8Q h4 f6 h3 Bb2 Qf8 Qg2 Rh4 Ne1 Nc6 b6+ Kb8 d6 Nc5 d5 Nd8 Kd4 e3+ Ne4 e2 b5 c3 d7 c2 d6 c1Q b7 Na4 Nc2 e1Q Kd5 Qb4 Ba1 Ne6 d8Q Rf4 Rb2 a2 d7 Ra6 Qde8 Rc6 d8B Qf1 Rb1 Qfe7 Rd1 Qc7 Qh8 Rc4 Be7 Rf3 Bd8 Rfc3 Rd3 Qb1 Rg3 Qe1 Rg5 Qe3 Rh5 Qa7 Rb1 h1N Rc1 Ng3 Rh1 h2 f3 Nf5 Qhg7 Qf2 Rh8 Re3 Rh5 Re1 Qh8 Rc1 Be7 Ka7 b8B+ Kb7 b6 Ka8 Be5 a1Q Qhg7 Qb1 Ba1 Qd7+ Bbd6 Qc7 Bf4 Kb8 Bed6 Re1 Bg5 Rc1 Bg3 Qb2 Qfg6 Qb1 f7 Qb2 f8Q Qb1 Rf1 h1B Qc5 Qb2 Q7f7 Qb1 Qh2 Bg2 Rh1 Bf1 Qg2 Qb2 Qgf6 Be2 Qfd4 Qb1 Qdb2 Bd1 Rh8 Qa5 R1h5 Qb5 Qbg7 Qb2 Qe5 Qa3 Qeb2 Qab4
r3N3/BQ1nn1B1/3bq2B/1R3R2/2NBb1b1/BPPK1n1R/8/1Qrn1kb1 w - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 b5 e4 f5 exf5 c5 dxc5 b4 c3 a4 Nd2 a3 Bg2 b3 axb3 a2 b4 Rh7 Be4 Rh8 Bb1 axb1B b5 Be4 Kf1 Bc2 Ke1 Bb1 Ke2 Kf7 f4 Kf6 h4 g5 b3 e5 b6 d5 h6 g4 h5 g3 h7 e4 h6 e3 b7 d4 c6 g2 c7 Bc5 Rh3 Qe8 Ba3 Ba7 Ngf3 g1B Nh4 Qa4 Nc4 Be4 Qb1 Bd5 Kd3 Nc6 b8B Bb6 Ba7 e2 Ra2 Bd7 c8Q Nge7 Qb7 Nb8 Ra1 Rg8 h8B+ Rg7 h7 Bc7 Ra2 Qa6 Rd2 Bd6 Rd1 Kf7 f6 Bg4 Nf5 Ke6 f7 Nd7 f8R Rg6 Bg7 e1N+ Kd2 d3 h8B Bg2 Bh6 Rg5 Bhd4 Be4 Rb8 Qc6 Ng7+ Kd5 f5 Rh5 f6 Nf3+ Kc1 Re5 f7 d2+ Kb2 Rf5 Rf1 d1N+ Kc1 Rg5 f8B Rh5 Ne8 Rh4 Rg3 Rh1 Rh3 Bdh2 Qb6 Qe6 Bfg7 Bd6 Qc7 Bd3 Rb5+ Ke4 Qb6 Bc2 Qb7+ Kd3 Bhe3 Ke2 Beh6 Ng5 Rff5 Nf3 Rfc5 Bg6 Rf5 Kf1 Kc2 Rh2+ Kd3 Rc2 Rh5 Rc1 Rh3 B6h5 Rfd5 Kg2 Re5 Bg6+ Ke2 Be4 Rf5 Bc6+ Kd3 Kf1 Rf4 Bd5 Rf5 Be4+
nN3Q1R/1NP2b1P/5qR1/1K4Bk/1N2Brqb/rbQBb2N/7q/3N3b w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 a4 Nc6 axb5 a4 Be2 Ra6 Bf1 Na5 bxa5 Ra8 Ke2 Kf7 Kd3 g5 Kc4 e5 h4 a3 f4 g4 f6 a2 b6 d5+ Kb5 d3 c4 d2 f5 e4 c5 d4 h6 e3 a6 g3 h5 g2 b7 e2 b8N e1B a7 d3 h7 Qd5 h6 Bb7 Qf3 d1B Na6 d2 Nb4 Bg3 Bd3 Qd6 c6 Qf4 c7 Bh4 Nc3 Bg7 Nh3 Bb3 Nd1 g1Q Qg3 Rf8 a8B Ne7 Rh2 Bg2 Bae4 Qg4 Qe5 Rhg8 Qc3 Nd5 Rh1 Nb6 h8N+ Ke8 h7 Bh6 Nf7 Be3 Nd8 Bf7 Nb7 Qh2 Rg1 Bh1 Rb1 a1Q Rb2 Qf3 Rg6 Na8 Ra2 Qg4 Ra3 Ba2 f7+ Ke7 f6+ Ke6 Ndf2 d1B Ra5 Bdb3 Nd1 Re8 f8N+ Kf7 Nd7 Rgf8 Ra4 Re6 Ra7 Ra6 Nb8 Ra3 Ra6 Qab2 Rg8 Qbf2 Rh8 Qff5+ Nd5 Kg6 f7+ Kh5 Rg6 Qf6 Nb4 Rd8 f8Q Rd4 Bd2 Bf7 Bc1 Bab3 Bd2 Bef2 Bg5 Be3 Bg2 Rf4 Bf3 Qa2 Bfe4 Qh2
2B1N3/P1K4Q/2Qr2n1/1NnQ1rk1/1b4n1/1RnBn1R1/PQ2qnn1/3R2Q1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 bxa3 Na6 a4 Nb8 a5 Be6 Be2 Bh3 Bf1 Bc8 g4 Bd7 f5 Bg7 Ba3 Nh6 Bd6 Bb5 Bf4 gxf4 h3 Be2 g5 Bg4 hxg4 Ng8 Nc3 Bh6 Nb1 Bf8 Ke2 Kf7 Kd3 c5 Ke4 h5 Ke5 b5 d4 h4 g6+ Ke8 f7+ Kd7 f6 h3 g7 b4 a6 e6 a7 f3 g5 h2 d6 f2 d5 b3 g6 c4 Na3 b2 Ne2 b1N Nc3 Rh7 Nab5 Qa5 Ne4 c3 Rg1 h1N Bd3 f1N Rg3 Nh6 g8B c2 g7 Nc3 Rb1 c1N Rb3 Ne3 Qg1 Kd8 d7 N1e2 Ned6 Na6 Ne8 Bb4 f8Q Nf4 f7 Nc5 Kd6 e5 Kc6 e4 Qd6 Ng6 f8Q Nf2 Be6 Nhg4 g8Q Rf7 Qh7 Rf5 Qfh8 Qa3 Kb6 Qb2 Qc6 Qe2 Q8g7 Rf7 Qgh8 Ke7 d8R Rc8 Rd6 Rd8 Bc8 Rd7 Rf6 Rd6 Kc7 Nh3 Rf1 Nhf2 Qh3 Rf5 Rd1 Nb1 Qb2 Nc3 Ng7 Kf6 Qh7 Kg5 Ne8 Rdf6 d6 Re6 d7 Rd6 d8Q+ Rdf6 Qgh1 Ned5+ Kb8 e3 Qhb7 Qc2 Rf3 e2 Qg1 e1N Rg3 Qe2 Qh7 Ne3 Qdd5 N1g2 Kc7 Rd6
n4Rn1/1bb1BP1Q/n1KN3b/4Qnb1/1QNN1N1n/P6R/Br2qk2/5N2 w - - 0 1 legal: proof: f4 g5 g4 b5 c4 d5 fxg5 f5 g6 f4 g7 a6 cxd5 f3 h4 Qd7 h5 Qd8 g5 a5 b4 axb4 exf3 Ba6 f4 Bc8 f5 Ra3 Bh3 Ra6 Bf1 Rg6 hxg6 Ba6 Qe2 Bb7 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d3 h5 a3 e5 f6 h4 d6 b3 d7 b2 Nh3 b4 Qh5 b3 Nd2 b1N Nf4 b2 Nc4 Na6 Rh3 Qe7 d8N c6 Nf7 Nd2+ Ke3 b1N Nfd6 Nf3 Ke4 Rh6 Ra2 Qe6 Rf2 Be7 Qg4 Bd8 Be2 Bc7 Bd1 Rh5 Bb3 Rh8 Ba2 Nc3+ Ke3 Nd5+ Ke4 Nb6 Qh5 Ne7 g8Q Na8 Qf8 Ng8 g7 Qe8 g6 Rh6 Rg3 h3 Rf1 h2 Rh3 h1N Qg5 Ne7 g8Q Nh4 Qh7 Ng8 g7 Rg6 Qf5 Rg2 Qe6 Rb2 Rff3 Nh6 g8N Qh5 Ne7 Ng8 Ned5 Ng3+ Ke3 Ngf5+ Ke4 Qg4 Nde3 Qg2 Nf1 Qe2+ Nce3 Kb6 d4 c5 Kd5 e4 Rf2 c4 Qe5 c3 Bd2 c2 Bb4 c1B Nec4+ Ka7 Kc6 e3 d5 Bd2 Ne8 Bc1 d6 Bd2 d7 Bc1 Kb5 Kb7 Ka4 Kc6 Be7 Bd2 Ned6 Bc1 Qc3 Kc5 d8N Bd2 Qb4+ Kd4 Kb5 Bc1 Qfg7 Bd2 Ng2 Qd3 Ne8 e2 Qgg6 e1B Qg3 Nd6+ Kc6 Bh6 Rf5 Ke4 Ne6 Qe2 Nd4 Bed2 Qgg7 Bdg5 Nf4 Qf3 Rd5+ Ndf5 f7 Qh5 Rd8 Qe2 Nd5 Qf3 Ned6+ Kd3 Rf8 Qe3 Nb3 Ke2 Nf4+ Kf2 Qe5 Qe2 Nd4 Bb7+
b3k3/nrB1nR1n/R2n3P/2QnBBr1/4Pnr1/3bK3/1QN2B2/N1N2B2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 Nh3 g5 Ng1 h4 Ra5 Bc5 Qb3 Bf2+ Kd1 Bg3 Ra1 Qf6 Qa4 Qg6 Qc2 Qh5 gxh5 g4 Qb3 Bf2 Qa4 g3 Qb3 g2 Qa4 Bg3 hxg3 Ne7 Ke1 Ng8 Qc2 Ba6 Qd1 Bc8 Kf2 f5 b4 a5 e4 c5 d4 a4 d6 h3 b6 f3 h6 c4 d5 f4 g4 h2 b5 a3 g5 c3 b7 a2 g6 c2 g7 Ra6 b6 Nc6 b8B Na7 b7 Ra5 Ne2 g1N Na3 Ne7 g8B Rh7 Be3 c1N Be6 Rb5 Qc2 Nh3+ Ke1 f2+ Kd2 f3 Qc5 Ra5 Nc2 Nd3 Nc1 Ng5 Bf5 Nf4 Bc7 Rg7 b8Q Nh7 Qb2 Rg4 Rg1 h1N d7+ Kf8 d8B Bb7 d6 Ba8 d7 Ng3 Bd4 Rb5 Bde5 Rb7 Ke3 Kf7 Bg2 f1B Bb6 f2 Bdc7 Kf8 d8N Ke8 Ne6 Bd3 Ned4 f1R Rh1 Rg1 Ndb3 Rg5 Bf1 Rg4 Rb1 a1N Rh5 Nge2 Rg5 Nd4 Rg7 Ndb5 Rf7 Nd6 Nbd4 Nb3 Ra1 Nd2 Ndb3 Nb1 Ra6 Nc3 Nba1 Rg5 Ba5 R1g4 Bb4 Nb1 Be1 Nc3 Bf2 Ncd5+
1rb1NQ1B/Rn2Q3/K1Rn1qNB/1b3n1P/4P3/nN5Q/qb4NN/4b1k1 w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 f5 axb5 e5 fxe5 f4 Bh3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Nf6 Ra1 Ng8 h4 Kd7 b4 g5 e4 c5 Ke2 c4 d4 a4 e6+ Kd6 h5 a3 b6 c3 Kd3 c2 Kc4 g3 Kb5 g2 f6 a2 f7 g4 e7 g3 b7 f3 Bh6 c1B Qb3 f2 Nf3 g1Q Nbd2 g2 Nh2 Na6 Qh3 Bb2 Nb3 Qb1 Rc1 g1N b8N Bg7 f8Q Nf3 Nc6 Nh4 Ne5 Nf5 Ng6 f1B+ Rc4 Nc5 e8N+ Kd7 d6 Ke6 d7 Nb7 Ka6 Qf6 d8B Ne7 b5 Bd3 b6 Bc2 Rc5 Bc3 Bc7 Be1 Be5 Rg8 Rc7 Qb2 Rc1 a1N Nh4 Bd1 Ng2 Nc2 Rd7 Na3 Rc6+ Nd6+ b7 Qa2 Na1 Ba4 Nb3 Ng6 Rdc7 Nf4 Rd7 Nd3 Rf7 Bd7 b8N Bc8+ Rb7 Rh8 Nd7 Rg8 Nb6 Rh8 Nd5 Rg8 Ne7 Nc5+ Kb6 Bh8 Ra7 Nb7 Ka6 Bg7 Bef4 Bh8 Bc1 Bg7 d5+ Ke5 Bb2+ Bc3 Nc1 Kd4 Ng6 Rh8 Qg4 Rg8 Nb3+ Kd3 Qh4 Ke2 Qh3 Kf2 Qe7 Be1 Qf8 Ndc4 d6 Kg1 d7 Ncd6 d8Q Qg5 Ba1 Bb2 Qd7 Qf6 Qde7 Qh4 Qd7 Bf6 Qde7 Be6 Ng7 Be5 Qff7 Rb8 Qff8 Bc8 Ne8 Bh8 Bf6 Bg7 Bfg5 Bb2 Bf6 Qg5 Bfg7 Qf6 Bh8 Bb5+
n2NQn2/P1rQ4/5P1N/1RQ3B1/1r3Bb1/1k1K1bn1/bb1BBB2/r1rR4 w - - 0 1 legal: proof: c4 a5 e4 h5 g4 f5 gxh5 d5 cxd5 c5 exf5 c4 d4 Qb6 b4 Qc5 dxc5 axb4 Ke2 Kd7 a4 b5 h4 g5 f4 e5 h6 g4 d6 Kc6 h7 c3 d7 b3 d8B c2 f6 b2 h5 e4 a5 b4 h6 Kb5 f7 Kc4 f5 g3 c6 e3 a6 g2 c7 b3 a7 Bd7 c8Q+ Bc5 f8B Na6 Nd2+ Kb4 Ne4 b1B Rh5 b2 Kd3 e2 Nf6 e1R Nf3 g1N Be2 Ba2 Bf4 b1B Ng4 Ne7 Nfe5 Rb8 Nf7 Ng6 Bdg5 Nc7 Nd8 c1R+ Qc2 Bc6 Qd7 Na8 f6 Rg8 h8B Bf3 h7 Rg7 Nh6 Re7 Bhg7 Bd4 h8Q Bb2 Qg8 Be6 Qh8 Bba2 Qc5+ Kb3 Bd2 Rb4 Rb1 Rcc4 Rd1 Rc1 Bgf4 Rf7 B8d6 Re7 Qhe8 Nf8 Bg5 Rf1 Bg3 Beg4 Bf2 Re1 Qdf5 Rc7 Qfd7 Nh7 Bf8 Ra1 Bd6 Nf8 Bf1 Ne2 B6f4 Ng3 Be2 Rf1 Qcd5+ Rbc4 Rb1 Nf5 Bgh4 Ne3 Qd4 Ra4 Rb5+ Rb4 Qc5 Nf5 Bhg5 Ng3 Bc3 Rc1 Bcd2 Rc2 Rd1 Rcc1
nqQ1n3/2BK1k2/6Nb/2q2N1R/n1PNNR2/nQb5/Q1B4P/2qN2nb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 d5 axb5 h5 gxh5 d3 f3 g5 Ra4 a5 Ra2 e5 Ra1 d4 Qe2 Ra6 Qd1 Rd6 f4 Rd5 exd5 e4 Be3 Rh6 Bd2 Re6 Bc1 Re5 fxe5 Qc7 Ra3 Qd7 Ra1 Qd8 Kd2 f5 b4 g4 c4 f4 b6 g3 d6 g2 b5 a4 e6 f3 b7 f2 d7+ Ke7 h6 a3 h7 a2 h8N Kf6 b6 Qe8 d8Q+ Ne7 Qe2 Nd7 b8N Qg6 b7 Nb6 Nc3 Na8 Nf3 g1N Na6 Qg8 b8Q Bb7 Qdc8 Nf5 e7 Ng7 Nc5 Ne8 Ng6 Kf7 Nd1 Bd5 Bh3 f1Q Qb3 Qf2 Bf5 Bc6 Rb1 a1B Rb2 Bd5 Ra2 Qh8 Ra5 Qe5 Ba3 Qb8 Bb4 Bc6 Rb5 Bg7 Ba5 Bd5 Bc7 e3+ Kc1 d2+ Kc2 Bc3 Kd3 Bh6 Ne4 Qh4 Qf2 e2 Ra5 Qg5 Qg2 Nd6 e8N e1Q Ng7 Ne8 Qf2 Qe7 Qg2 Qc5 Qf2 Nh3 Rf1 Ng1 Bd7 Bc6 Nf5 Bd5 Ba4 Bb7 Nb2 d1N Qd2 Ne3 Nd1 Bc6 Qda2 Nc2 Nde3 Bd7 Ng7 Bh3 Rf2 Qcb5 Qb4 Na3 Bc2 Qc1 Qbb3 Ba1 Rf1 Q5b6 Rh5 Bg2 Ngf5 Qb4 N3h4 Q4b6 Rf4 Qc5 Nf3 Bh1 Nc3 Qcb4 Ke4 d3 Kd5 d2 Kc6 d1N Ne4 Nb2 Kd7 Na4 N3d4 Qc5 Nd1 Bc3
4K3/1k2rnB1/1NN1BRQb/P1qR1Qr1/2P1N3/2Qp2bq/2N5/1N1r2nq w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 g4 g5 fxg5 b6 g6 Bb7 h3 Bf3 g5 Bg4 hxg4 Ra5 Bd2 Ra3 Bc1 Ra8 Kd2 e5 Kd3 h5 Ke4 h4 Kd5 d6 Ke6 e4 a4 h3 c4 d5 f6 h2 c6 d4 g7 e3 c7 b3 c8N e2 g6 e1B g5 b5 a5 d3 Ne2 b2 Bh3 b4 Qb3 Rh5 Nb6 Ne7 g8N Nf5 g7 Bf2 g6 Nd7 Nd4 Qc8 f7+ Kd8 Bh6 Kc7 Ne7 Kb7 g8Q Rg5 g7 Nh4 Qc3 b3 Nc2 Bg3 Nc6 Nf3 Re1 h1R Re5 Rd1 Rd5 Nde5+ Kf6 Qd7 Be6 Ra7 Qh7 Qd6 g8N Ng1 Bg7 Qa3 Qg6 Qc5 Bh8 Bh6 f8Q Nf7 Bg7 Qd4+ Ke7 Qh4 Nd2 b1Q Nf6 b2 Nfe4 Qh3 Ke8 Qc1 Nb1 Qe3 Ra2 Qc5 Ra1 Ne5 Qff5 Nf7 Nbd2 b1Q Ra2 Qc1 Nb1 Qf4 Rb2 Qf3 Rb5 Qfh1 Rd6 Qb4 Rbd5 Qb5 Bd7 Qc5 Rf6 Ka6 Be6 Rc7 Qb2 Kb7 Qc3 Re7+
1Q3bR1/4b1N1/1nPnK3/qkPRRB1p/N1q3BR/1r1r4/2N1n1Q1/6qR w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 f4 Nc6 g4 Bg7 f5 Nb8 Bf4 gxf4 h3 Bb7 g5 Bf8 Nc3 Bf3 Nb1 Bg4 hxg4 Qc7 Bg2 Qb6 Bf1 Qd8 Kd2 a5 Kd3 e5 Kc4 h5 Kd5 d6 c4 Kd7 b4 f3 g6 a4 c6+ Kc7 g7 Kb6 f7 a3 f6 e4 g5 a2 g6 f2 c5+ Ka7 Ke6 d5 Rh4 d4 Nc3 e3 Qg4 e2 b6+ Ka6 b7 d3 b5+ Ka5 b6 e1N Qg2 d2 Be2 f1Q Bg4 d1Q Nge2 Nh6 g8R Q1d4 g7 Qd2 Nd4 Qc2 Na4 Nd7 b8Q Nf5 b7 Nd6 Rb1 Qcf2 Nc2 a1B Rc1 Be7 f8R Nd3 f7 Q2g1 Re8 Nb6 f8N Kb5 Rd1 Nc1 Rd5 Ne2 Rd1 Qd4 Qa7 Nbc4 b8R+ Qb6 Nb2 Qc3 Kd5 Bd8 Rd4 Nf7 Ne6 Bg5 Qc7 Ka6 Rgf8 Nfd6 g8B Qd3 Rf5 Be7 Rec8 Qb1 Bh7 Rf8 Rg5 Rf3 Rcg8 Rg3 Rbf8 Rb8 Rf1 Qa5 Rfh1 Qg1 Na4 Rb3 Qb8 Nb6+ Ke5 Bf8 Ng7 Kb5 Ke6 Qc4+ Rdd5 Bf6 Re5 Rgd3 Bhf5 B6e7
7k/Q1R1br1B/qP2Pnq1/R2b2N1/2Q2rBr/3pRN1K/N2q1R2/R3n3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 g5 Kg3 f5 e4 Kf7 h4 Kg7 c4 a5 b4 d5 c6 d4 h6+ Kh7 b6 a4 c7 a3 c5 a2 b5 g4 b7 Qd7 h5 Qc6 b6 Ra3+ Bd3 Qa4 e6 Na6 b8Q Bb7 c8R Be7 e5 Bg5 c6 Be3 e7 Qa5 e8R Qc3 c7 Qb2 Qc2 Bc6 Nf3 Ra4 Rf1 Nc5 Rf2 Nf6 Nc3 Bd5 Qa7 Bg5 Kh2 g3+ Kh3 Bh4 Bg5 g2 Qb3 g1Q Qc4 Qd2 Be4 Bg3 Bh4 Nd3 Ra8 Ne1 c8B+ Nd7 Re6 d3 Rc6 Kg8 Rc7 f4 Bg6 Nf6 h7+ Kf8 Bd7+ Kg7 Bgf5 Bh2 Be4 Qg6 Bg4+ Qf7 e6 Bg3 Rb1 a1Q Na2 Bh2 Rb5 Bg1 Ra5 Rb4 Re2 Bc5 Re3 Be7 Rf8 Qg6 Ra8 Rf8 h8R Rf7 Rhf8 Rb5 h6+ Kh7 Ng1 f3 Bef5 f2 Nf3 Ng8 Be4 Kh8 h7 f1R Bef5 Kg7 h8N Rf2 Be4 Rf4 Rf5 Nf6 Nf7 Rc5 Nc1 Qa4 N7g5 Qb5 Ra1 Qa6 Rf8 Rb5 Rf7+ Kh8 Re5 Qh6 Bh7 Qg6 Na2 Rf5 Nh2 R2f4 Nhf3 Rc5 Ne4 Rh5 Neg5 Rc6 Rf5 Rd6 Rfe5 Rd7 Rg7 Qf7 Ne4 Ba3 Bgf5 Ba8 Ra5 Bd5 Rg2 Qg6 Neg5 Rf7 Rf2 Be7 Bg4 Rxh4+
1r1q1kb1/4NN1n/PNr1n1bK/5p1B/2Q1N3/b1P2RQ1/1q1B3R/NQ1q4 w - - 0 1 legal: proof: b4 c5 f4 e5 b5 c4 b6 c3 dxc3 axb6 Bb2 b5 Bc1 b4 fxe5 b5 g4 h5 gxh5 b3 Bd2 b2 Bh6 b4 Bc1 b3 cxb3 Ba3 Kf2 Bc5+ Ke1 Bf8 Kd2 g5 Ke3 d5 h4 f5 a4 g4 Kf4 d4 e4 d3 h6 g3 b4 g2 e6 d2 h5 Bc5 b5 Bd7 e5 Kf8 e7+ Kf7 Kg5 Bb6 h7 Bf2 b6 Be1 e6+ Kg7 b7 Nh6 a5 Qg8 e8Q Bg3 a6 Be5 e7 Bd4 Qc8 Qd5 e8N+ Kf8 Na3 b1Q Ne2 g1Q+ Ng3 Qd6 Be2 Qb2 Nf6+ Kg7 Nd5 Bb6 Rh2 Qb1 Qc4 Be6 Nc2 Bc5 Nb6 Ng4 h6+ Kf8 Ne4 Nc6 b8Q+ Nd8 Qe1 d1B Bd2 Bg8 Qg3 Nf6 Bh5 Qd7 Ra4 Qh1 Na1 Qb2 Ra2 Qe8 Rf2 Ba3 Rf3 Bb3 Qb7 Bf7 Qbb8 Bg6 Qb7 Rg8 h8N Qe1 h7 Qd1 Nf7 Rb8 h8N Nh7+ Kh6 Ne6 Be3 Qbc1 Rh2 Qed8 Bd2 Ba2 Nd5 Rg7 Qb1 Qb2 Nb6 Bb3 Ne5 Rgb7 Nc6 Rc7 Ne7 Rc6 Nf7 Nc7 Qcd3 Bd5 Qc4 Be6 Nfd6 Bg8 Nf7 Ne6
n1N5/2QpQ2r/BP2q1K1/1n2R1P1/3k1rqr/qb1bNB2/RN3B2/2N2N2 w - - 0 1 illegal: No possible last move
1q1N2RQ/1P3N2/8/Q1Rnbq2/1BP1rk2/q5n1/Qrp1Qb1N/QBb3K1 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 h5 exf5 d5 g4 Rh6 gxh5 Rh8 c4 dxc4 b3 c3 Ra6 c2 Ra2 Be6 Ra1 Bc8 Bc4 c5 Qg4 Be6 Bf1 c4 Qe2 c3 Qd1 Bc4 bxc4 Qd4 Bg2 Qd5 Bf1 Qd8 h4 Kd7 d4 Kd6 f4 e5 Kf2 g5 d5 a5 h6 a4 f6 g4 h5 e4 f5 Ke5 d6 a3 f7 a2 h7 Ra5 f6 Qe7 d7 Bg7 d8N Qc7 f8Q Qd6 h6 Ra3 f7 Ra4 b6 Qd3 b7 Nf6 Nh3 g3+ Kg1 g2 Qb4 e3 f8Q e2 Ba3 c1B Ng5 e1B Qe2+ Ne4 Nd2 Nd7 Ngf7+ Kf4 Nf3 Ng3 Qa5 Nb6 Rh5 Qf5 Bb4 Nd5 Nh2 Be5 Rg5 Ra3 Rg8 Rb3 Qd6 Rb1 Qda6 Rb2 Rb1 a1Q Qa2 Rd2 Q6a5 Rd4 Rb2 Re4 Rd2 Qb2 Rd3 Qa3 Rd4 Nb6 Rd6 Nd5 Rc6 Ne7 Rc5 Nd5 Re8 Rg8 h8Q Rg6 h7 Rb6 Rg8 Rb5 Qh5 Rb6 Bd3 Rb5 Bb1 c2 Bc3 Rb2 Qe2 Re3 Qg7 Rb5 h8Q Bc7 Nc6 Re4 Qd4 Be5 Rb8 Rb6 Bb4 Rb5 Qda1 Rb6 Bc3 Rb2 Qa6 Qa5 Re8 Qd8 Q6a5 Qc7 Bb4 Qb8 Rg8 Qa8 Ng4 Qb8 Kh2 g1Q+ Kh3 Nc3 Ncd8 Qe3 Kg2 Nd5 Nh2 Qa3 Kg1 Bf2+
1N1NbB1r/PN2NQ2/2nP2Rb/Bk4nr/b2K2BR/3np3/q3Qq2/6N1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 Kd2 Kd7 Kd3 b5 h4 g5 a4 e5 f4 g4 a5 e4+ Kd4 e3 c6+ Kc7 h6 b3 h7 b4 a6 Kb6 h5 b2 a7 g3 c7 b3 f6 g2 f5 Qe8 f7 Qe7 h6 Na6 d6 Nc5 f6 Bf5 c8N+ Kc6 Qe2 Bd3 Bd2 Ne4 Ba5 Bc2 Nc3 b1Q Rh4 b2 Na4 Nd2 Nc5 Ba4 Nb7 Qa2 Nb6 b1B Nd7 Bd3 Nb8+ Kb5 Rd1 Bg7 f8Q Nc4 Qf7 Qf8 Ra1 Ne7 Re1 Rg8 h8N Nb2 h7 Bh6 Ng6 Rh8 Ra1 Bc4 Rd1 Nd3 Re1 Nd5 Ne7 N5b4 Rb1 Bd5 Rc1 Bc6 Rc4 Rg8 h8N Rg5 Rg4 Rh5 Rg6 Bf4 Qg4 Bg5 Be2 Be8 Qf3 Bh6 Qf2 Bg5 Bg4 Bf4 Qe2 Bh6 Nd7 Rd8 Nb8 Rc8 Qh7 Rd8 Nf7 Rc8 Nfd8 Qf7 Nf3 g1N Qg7 Qf8 f7 Nh3 Ng1 Ng5 Qf6 Qg8 f8B Qf7 Qe6 Qf2 Qf7 Nc6+ Kc3 Qg2 Bd7 Nf3 Rh4 Bg5 Bg4 Bh6 Ne6 Bd7 Bg7 Rh8 Ned8 Ng5 Bf8 Qh2 Qf6 Be8 Qf7 Nb4 Kd4 Qg2 Bb6 Qf2 Ba5 Nc6+
5RR1/rqb2PKQ/1B3b2/N3bPB1/nkb1b3/1B5n/Q3pBBN/4R1r1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f6 Kd7 Ke2 Kd6 Ke3 Kc5 Ke4 e5 b4+ Kd6 g4 c5 d4 a5 f4 h5 b6 h4 b7 a4 b5 a3 f5 a2 b6 h3 g6 c4 g5 h2 g7 c3 g6 c2 Bg2 Nc6 b8R Rh3 b7 Qe8 Nf3 Qe7 Qe2 Ra3 Bf1 Rh7 Nbd2 Nb4 Nb3 Na6 Rg1 Nh6 g8B h1B g7 Kd7 d6 Kc6 d7 Kb6 d8Q+ Qc7 d5 Ng4 d6 Be6 d7 Bb4 Rb1 a1B Na5 Rc3 Bf4 c1B Qa2 Kc5 Ra8 Bcb2 b8B Rc1 Ba7+ Qb6 Bh3 Bf7 Rg3 Rg1 Re1 Bc1 Bh6 Bf4 Qf8+ Kb5 d8B Bc5 Rg2 Kb4 Nh2 Bb3 Bc4 Nf2+ Kd5 e4 g8Q Bcd6 Ke6 e3 Qff7 Rg7 Qh7 e2 Qf8 Rd7 Rg8 Be4 Bg5 Be7+ Kf7 Nc5 Bg2 Nh3 Kg7 Na4 Be6 Qb8 Bf2 Ra7 Bdb6 Bc7 Qf7 Qb7 Raf8 Bae5 Bd5 Bbc2 Bb3 Bcd3 Qfg6 Bc4 Qgh6 Bg3 f7 Bge5+ Qf6 B7xf6+
5q2/k1BbB2B/4KR1p/1Q1B4/PR2R2N/bN1r2P1/1nB3Qn/2rr2rn w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 Ke2 Kd7 Ke3 Kc7 Kd4 b5 Ke5 Kb7 f4 h6 a4 b3 d6 e6 d7 b2 c6+ Ka7 f6 b4 c7 b3 f5 Kb6 g6 Ne7 f7 Na6 g7 Bb7 c8B Nc5 g8B Ra5 f6 Bf3 Qd3 Be2 Nf3 Ka7 Bh7 Rg8 Bg5 Nf5 Rh4 Ng3 Qb5 Nh1 Nbd2 b1R Bb7 b2 Bd5 Rc1 Rb4 b1R Nh4 Bg4 Bfd3 Rg7 Bc2 Nd3+ Kd4 Rg6 Nb3 Nb2 Ke5 Qe8 Re4 Ba3 d8B Qf8 Bc7 Rd1 Rb4 Rbc1 Rb1 Ra6 Rf4 Rd6 Re4 Qc8 f8R Rd3 Rg8 Qf8 f7 Rg7 Be7 Rg5+ Kf6 e5+ Be6 R6d4 Bd5 Bd7 Rg6 Rgg3 Ra1 Rdd1 Rb1 Rgd3 g3 Rg1 Rg5 Rdd1 Rf5 R4d3 Rf1 Qa8 f8Q Qd8 Rg4 e4 Rf3 e3 Re4 e2 Rff4 Be8 Ke6 e1N Rf6 Nf3 Qg8 Bc6 Qg5 Qb8 Qd2 Qf8 Qg2 Nh2 Na1 Nc4 Rb4 Nb2 Nb3 Bd7+
r1N2B2/2b5/p1K2q2/1rnnNN2/1R1P1b2/knR1b1P1/N1n1QBN1/3BQ3 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 f5 f4 b5 axb5 Be6 h3 Bf7 e4 Bh5 exf5 Bg4 hxg4 gxf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g3 h5 b6 c5 b7 e5 g5 f3 f6 a6 g6 f2 d6 h4 Kd5 c4 g7 h3 d7 e4 f7 h2 Ra3 e3 Be2 f1N Rc3 Qh4 d8N Rh6 Qe1 Ka4 b4 Qh3 b5 Rh8 b6 Qh4 Nc6 Rh5+ Ne5 Nd2 Bd1+ Nb3 Ne2 Qf6 Nf4 e2 Ng2 Bd6 f8B Nc6 b8N Bc7 b7 Rg5 Rg1 h1N Be3 Nf2 Nd7 Ne4 b8Q Nc5 Qe8 Rf5 Bf2 Kb4 Rf3+ c3 Nb6 Rg5 Nc8 Ka4 Rd3 c2 Rf3 c1B Nc3+ Ka3 Na2 Bf4 Rc3 Rf5 Qf1 e1B Qe2 Bed2 Qe1 Nh6 g8N Bde3 Nge7 Ng8 Qh5 Rg5 Qhe2 Rh5 Nf5 Nb4+ Kc4 Nc2 Kd5 Qd8+ Kc6 Nf6 Rh1 Rg5 Rh7 Nd5 Rg7 Bb8 Rb7 Bc7 Rb4 Qf6+ Ncd6 Rg8 Bh6 Rgb8 Bf8 Ne6 Nc8 Rb5 Be7 Nc5+ Bd6 Qh8 Bf8 Qf6+
3B3N/3r2QP/2BR2P1/nR1rp2Q/2R1n3/2q1bn1r/1N2B1kn/1b1KB1B1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 fxg5 Bg7 g6 Bh6 g5 Bf8 Qg4 hxg4 h4 Kd7 d4 Kd6 b4 a5 b6 c5 h5 e5 h6 g3 b5 g2 h7 a4 g7 a3 b7 a2 f6 c4 b6 c3 g6 c2 f7 Ra6 Nc3 Nd7 b8R Ngf6 g8B Ra4 b7 Nb6 Nh3 g1R Ng5 Nbd7 Bd2 c1N Kd1 Qc7 Be1 Qc5 Rh4 Qc7 Be2 Ra3 Na4 Rh3 Nb2 Nb3 Re4 Be7 f8Q Ng4 Qg7 Ndc5 Bf7 Be6 Be8 Bf5 Bc6 Rd8 Rb1 Rd7 Rd8 a1N b8B Nh2 Ba7 Na5 Rh4 Qc8 Nf7+ Kc7 Nh8 N1b3 Rg4 Ne4 Bc5 Bg5 d6+ Kb8 d5 Be3 Rh4 Nd4 Bb6 Ndf3 Bc5 Rf7 d7 Kc7 Ba7 Kd6 Rf4 Ned2 Rc4 Rg4 Bb6 Rd4 Ba7 Bd3 Bb6 Ne4 Ba7 Ke7 d6+ Ke6 Bb6 Rd5 Bd4 Bf4 Bg1 Kf5 Rf8 Kg4 d8Q Rf6 d7 Rfd6 Rf6 Be3 Qde7 Qc7 d8B Rd7 Rd6 Qc8 Qh6 Qc7 Qh5+ Kf4 Bc3 Kg3 Be1+ Kg2 Qg7 Qc8 Na4 Qc7 Rb5 Qc8 Nb2 Qc7 Ba8 Qc5 Bc6 Qd4 Rbb4 Qc3 Rb5 Bb1+
b3b3/P1B1NRP1/QNQ1K3/2p1nn2/2rN1N1N/nr6/RB6/b2qBkb1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 g4 h5 f4 g6 g5 Bg7 Be2 Bh6 fxg6 Bf8 Bg4 hxg4 f5 Qd7 Qb3 Qd6 Qd1 Qd8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kc4 a4 Kd3 h4 b5 h5 c5 a6 e6 a5 g3 g7 g2 f6 b4 f7 b3 h6 b2 h7 Qd7 a7 Ne7 g8N Na6 d6 Qc6 d7 Bb7 d8Q+ Qd7 g6 Bc8 Qb6 Nb8 a6 Qe8 Nh3 g1B Qf3+ Be3 Na3 b1B Nb5 Ba2 Qfc6 Ke2 d4 Bc4 d5 Qd7 d6 Nf5 Bd2 Bb7 Ne7 Bg1 Be1 Kf1 Nd4 Bb5 Ra2 Bh6 Kf6 e5 f8N e4 Nf4 e3 Rhh2 Rg8 h8B e2 Rh1 Qd8 d7 Bg7+ Ke6 Be5 Bf6 Rh8 g7 Rh3 Rh2 Rb3 N8g6 Ba4 Nh4 Bb5 Ndf3 Ba1 Bb2 Ba4 Nd4 Bb5 Bd2 e1N Rh3 Nc2 Be1 Na3 Rc3 Qe8 d8B Qh5 Bc7 Nd7 Rc1 Rd8 a8N Ne5 a7 Qd1 Qa6 Rh8 Nb6 Ba8 Rc3 Rb8 Rg3 Rb4 Rg6 Rc4 Rf6 Ba4 Rf7 Bb5 Qd5 Be8 Qc6 Rb7 Nbd5 Rb4 Nb6 Rb3
5q2/p3NQ2/QRKbR3/R2R3n/4N2r/1NPn1r1r/B3Pn2/b1R1rk1B w - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 f5 d4 b5 axb5 h6 dxc5 Bb7 Bg5 hxg5 g4 f4 Qd6 Be4 Qd1 Bf5 gxf5 Rh6 Qc1 Rh5 Qd1 Rh8 Kd2 Ke7 Kc3 d5 Kb4 g4 h4 g5 c3 d4 e6 Kf6 h5 Ke5 b6 Ke4 Kb5 Ke3 b4 Kf2 c6 g3 b7 d3 e7 d2 e8B g4 h6 f3 h7 g2 c7 g3 c8N Bc5 f6 Nh6 f7 Bd6 f8Q Ng8 Qa4 d1R Bf7 Qh4 Ba2 Rd3 Qa6 Qf6 Nd2 Nc6 b8R Ne5 Ne7 Rd4 Rb6 Nd3 Qg7 Rh4 Kc6 Qf8 b5 Nf6 Qf7 Nh5 Nb3 Ba3 Rc1 Bb2 Rd1 Ba1 Nh3+ Ke3 Rd2 g1N Ng5 Kf2 Bg2 Nh3 Rc1 Re8 Bh1 g2 Rdd1 g1B Rd2 Bh2 Ne4+ Ke3 Rdd1 f2 Rd2 f1R Rdd1 Rg8 h8R Bd6 Rh6 Nhf2 Re6 Rg3 Rd2 Rf3 Rdd1 Ndf4 Rd5 Rfh3 Rb7 Rd8 b6 Re1 Rc7 Rd7 b7 N4d3 b8R Rd8 Rb4 Rb8 Rd7 Rb5 Rg5 Rf5 Rb6 Rff3 Ra5 Ng4 Nec5+ Kf2 Ne4+ Kf1 Rd8 Ngf2 Rd7 Bb8 Rdd5 Bd6
2B3Br/b1q2nRB/2n2P1B/2k3K1/3q2Rn/1B2PR2/r2pn2Q/2bNN2Q w - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 e5 a4 c5 axb5 cxd4 Bf4 f5 Bd2 e4 Bc1 e3 fxe3 f4 Nf3 Bb7 Ng1 f3 Kd2 f2 Nc3 Qc8 Nb1 Bf3 exf3 Qd8 c4 Ke7 b4 Kd6 g4 h5 c5+ Kd5 g6 a5 g7 h4 g5 d6 g6 d3 b6 a4 c6 a3 c7 a2 c8B h3 f4 h2 b5 Qe8 f5 Ra7 b7 Rh5 b6 Ra4 f6 Ne7 g8B+ Kc5 g7 d5 Bh7 d4 g8B Qc6 Nc3 Ng6 Nf3 Nh8 Ne1 Nf7 Rg1 h1N Rg7 Qc7 Bb2 Nc6 b8Q Ra8 b7 Ng3 Qb1 Nf5 Nd1 Nh4 Ba3+ Kd5 Bfh3 Bc5 Bhe6+ Kd6 Bb3 f1N+ Kc1 d2+ Kc2 Ng3 Kd3 Ne2 Ke4 d3 Qc1 Ned4 Kf4 Ne2+ Kg4 Rh6 Rb1 a1B Rb2 Nh8 Kg5 Ra6 Rc2 Bb2 Rc4 Ra8 Rf4 Ra5 Qb1 Bc1 Rf3 Ra8 Bb4 Ra2 Ba3 Nb4 Qa1 Ba7 Qb1 Kc5 Qa1 Qf7 Qh2 Qc7 b8R Nf7+ Kg4 Kc6 Rb5 Rh5 Rbg5 Kb6 Qb1 Nc6 Bd6 Rh6 Bf4 Rh5 R5g6 Kb5 Bh6 Kc5 Nb2 d1Q Qa1 Qd2 Nd1 Rd5 Qb1 Rd8 Kh5 Qb2 Rg4 d2 Qe4 Nd6 Kg5 Qd4 Rh3 Re8 Qeh1 Rd8 Rf3 Re8 Bgd5 Rh8 Bdg8 Nf7+
4N3/1Q4P1/nnrq1R2/1B1P1Q1R/Q4BN1/2kqNb1Q/1nn2rpQ/b6K w - - 0 1 illegal: No possible last move
2b1nq2/r5P1/1B1Q1bRB/q1K2k2/BP1B3Q/p5B1/2NN2RR/qr1r2b1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Ke2 Kd7 Kd3 a5 Kc4 h5 d4 c5 b4 e5 d6 a4 d5 h4 g7 f3 g6 e4 f6 e3 f7 e2 b6 e1Q b7 a3 b8B f2 Bb2 h3 Ra2 h2 Nf3 Rh3 Nbd2 Qe6 Bd4 Be7 f8B Nf6 g8R Ne8 Ne1 Bf6 Nc2 Ra7 Bh6 Rd3 Qh5 Qde7 Qh4 Qf8 Be2 f1R Bd1 Qe2 Kb5 c4 Kc5 c3 Rg1 h1Q Rg2 Re3 Bc7 Qa6 Rg7+ Re7 Bb8 Kd8 d7 Rg1 Bg3 Ree1+ Re7 Rgf1 g7 Rg1 Bg4 Rb1 Bd1 Nd6 Re6 Ne8+ Rd6 Ke7 d8B+ Kf7 Rh2 Kg6 Bb6 Kf5 Rb2 Qg8 Re6 Qf8+ d6 Re1 Re7 Rg1 d7 Rf1 d8Q Rg1 Be2 Rgd1 Bb5 Qf1 Qd6 Qg1 Na1 c2 Re6 c1B Nc2 Qf1 Ba4 Qh1 Nf3 Be3 Nd2 Qhf1 Re4 Bg1 Rg4 Qfd3 Rg2 Qb3 Rg6 Qa2 Rb3 Qa1 Re3 Rdc1 Ree2 Rf1 Rh2 Rfd1 Reg2 Qa5+
1b1K4/BR1NnPb1/1N1NN2k/2RrQ2B/6QN/P3nqpn/nR2q3/5n2 w - - 0 1 legal: proof: g4 d5 e4 f5 exf5 g5 f4 b5 c4 a6 cxd5 Qd6 f6 Qd8 f5 Kd7 f7 a5 b4 axb4 h3 Kd6 f6 Bf5 Bg2 Kd7 gxf5 g4 Bf1 g3 Qf3 Ra6 Qd1 Rc6 Bg2 Rc4 Bf1 Rg4 hxg4 Bh6 Qe2 Bg7 Qd1 Bf8 Ke2 e5 Kd3 h5 Ke4 c5 d4 h4 d6 b3 Kd5 h3 a3 h2 g5 b2 g6 c4 g7 e4 Nd2 b1N Qh5 c3 Nc4 b4 Nf3 b3 Ra2 b2 Be2 c2 Nh4 Na6 Be3 Nb8 Rc1 Nh6 g8Q h1N Qgg4 Bg7 f8R Nc6 f7 Nf2 f6+ Nf5 Kc5 Ke6 d7 Nh3 Nb6 Qa8 d5+ Ke5 d8N Nc3 d6 b1N d7 Nd2 Rb2 Na2 Nb7 Nf1 d8N Ne7 Ne6 Rh6 Bf2 e3 Nd6 Qf3 Rb8 Rh8 Bg1 Rd8 f8N Rd7 f7 Kf6 Bd1 e2 Rb7 e1Q Kb5 Qee2+ Kc5 Nd5 Kc6 Nf5e3 Qh8 Rd8 Bf2 Ne7+ Kc7 Rc8+ Kd7 Rc5 Kd8 Re5 Ng2 Rg5 Nfd7+ Kg6 Qe8 Kh6 Nh4 Ng6 Qe7 Rc5 Qf6 Rd5 Qe5 Ne7 Na4 N3f5 Ba7 N5e3 Nab6 Rd4 Rcb1 c1B Ra1 Bd2 Rc1 Rd5 Rc5 Ba5 Bc2 Bc3 Bg6 Bd2 Bh5 Bc3 Qee4 Bce5 Qef5 Bf4 Qe5 Qff2 Qf6+ Ng6 Ne4 Bb8 Nd6 Qff3 Qe5 Ne7
3K2B1/B3R3/Q7/qP2N2r/1Nn2q1B/Q1R3rb/p1br1NkP/B2q2Br w - - 0 1 illegal: No possible last move
NQQ3Bk/2Qn1n2/1pqQ4/4P2r/1Q1q1q2/N2n1n2/3R1P2/b1KR1bBN w - - 0 1 legal: proof: c4 a5 e4 h5 g4 d5 cxd5 f5 gxh5 e5 exf5 e4 b4 axb4 d4 Ra6 Bb2 Re6 Bc1 Re5 dxe5 Qf6 Bg5 Qd6 Bc1 Qd8 Kd2 Kf7 a4 g5 h4 Kg7 f6+ Kh7 h6 c5 h5 c4 d6 b3 a5 g4 d7 b2 f7 g3 a6 b6 a7 g2 a8N Ba3 f8Q Ba6 Ne2 g1N Ra2 c3+ Kc2 e3 Ng3 e2 Qb4 e1Q Bc4 Qe3 Qdd6 Nf3 Rd1 Qf4 Nh1 Bb5 Bf7 Bf1 Bd2 Qe8 d8Q Qc6 Q8c7 Nd7 Be3 Qd4 Bg5 Qf4 Bh4 Qd4 Bg3 Qf4 Bh2 Qd4 Nd2 b1N Bg1 Bb2 Nc4 Nbd2 Na3 Ba1 Kc1 Ne4 Rad2 c2 Ba2 Nc5 Bb3 Ne7 Bf7 Nf5 Be6 Rd8 Bg8+ Kh8 h7 Nh6 Qe7 Nf7 Qe6 Kg7 h8Q+ Kf8 Qhf6 Re8 Qff5 Kg7 h6+ Kh8 Qed6 Re6 h7 Rh6 Qfe6 Rh4 Qe8 Rh5 Qec8 Qe3 Qc4 Nh6 Qdd3 Nf8 Q7d8 Kg7 Q3d6 Qee4 Rd3 Qd4 Qb4 Ng5 Kd2 c1Q+ Ke1 Qcf4 Q8e7+ Qf7 Kd2 Nf3+ Kc1 Qde4 Qed8 Qff4+ R3d2 Qed5 Qdb8 Nf7 Qe7 Qde4 Qec7 Nfd7 h8Q+ Kg6 Bh7+ Kh6 Qhe8 Kg7 Bg8 Qd4 Qf8+ Kh8 Qfd6 Nd3+
r3B1BB/rQ4BQ/P3rRp1/n2N4/1Pq1q1r1/1b1k4/q1R3K1/NQ1Bb3 w - - 0 1 illegal: No possible last move
1b4BR/2Qpbr1P/R3r3/q1Qr1kN1/B7/1n1N1P2/1r1R2K1/qR2QR1b w - - 0 1 illegal: No possible last move, all moves rejected
K3Q1RQ/P2NQ2b/3r1QB1/1knb3B/1r1prN1B/Q1P3q1/r1q1R3/3b4 w - - 0 1 legal: proof: g4 c5 e4 f5 exf5 a5 b4 axb4 d4 g5 dxc5 Ra5 f4 Nc6 f6 Nd4 h3 Nf5 gxf5 g4 h4 Ra8 Bh3 Bh6 Bf1 Bg5 hxg5 Ra4 Rh3 Ra6 Rh1 Ra8 Ke2 e5 Ke3 h5 Ke4 b5 Kd5 b3 a4 b2 c3 b4 c6 g3 f7+ Ke7 a5 e4 a6 g2 g6 b3 c7 h4 g7 d6 Kc6 d5 f6+ Ke6 f8Q e3 f7 e2 a7 e1R f5+ Ke5 f6 h3 Qd4+ Ke6 Be2 h2 Bg5 Qe7 Qe8 Rh5 Nh3 g1Q Nd2 b1B f8Q b2 f7 Nf6 g8B Ne4 Nc4 Nc5 Ra2 Bc2 Qfg7 b1R Nb6 Rb4 Bh7 Bd1 Rc2 Qg4 Rg1 h1B Qgh8 Ba6 f8Q Bd3 Qfg7 Rd8 c8Q+ Rd7 Qa6 Bg6 Qf4 d4+ Rg2 Rd5 Nd7 Rd6+ Kc7 Kd5 Qa3 Qe3 Qff6 Qd3 Qge7 Kc4 Nf4 Rh2 Bh4 Kb5 Kb8 Bf5 Rg1 Bd5 Ra2 Qh3 Rg8 Qg3 Bh5 Re4 Rb2 Kc6+ Ka8 Rg2 Rb3 Ra2 Rb2 Qb1 Re2 Qb2 B7g6 Qc2 Bf7 Bh7 Bfg6 Kb5+
3BBr1R/BNQKN2B/2P1nP2/3R4/nr2b1kr/1Bn5/2p2r2/1QQq3n w - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 d5 axb5 g5 h4 c4 hxg5 Bg7 Ra4 Bd4 Ra1 Bc5 bxc5 d4 c3 dxc3 Ke2 Kd7 Kf3 h5 Ke4 a5 Kd5 e5 d4 h4 f4 e4 g4 h3 f6 e3 f7 h2 f8Q a4 b6 e2 f5 e1R g6 c2 b7 a3 g5 c3 f6 a2 g7 Ra7 g6 Re2 Na3 Rh3 Qd6+ Ke8 Nf3 Rg3 Be3 c1R Nc4 c2 Na5 Rg5+ Ne5 Rgg2 Nec6 Nd7 Ke6 Rg4 b8Q Ne7 g8B Nd5 g7 Ra8 Qdc7 Rf2 Qb1 Nc3 d5 Bb7 d6 Rb4 Bb5 Nb6 Bh7 Nba4 g8B Kf8 Ne7 Be4 d7 Rb8 Rg1 h1N Nb7 Rc8 Qd2 Rd1 Qdc1 Rdd4 Rd1 Ra8 Qb3 Rb8 Rb1 a1N Qa2 Rdc4 Rd5 Nb3 Ra1 Ra8 Qab1 Nd4+ Kd6 Ne6 Bd4 Qe8 d8B Qh5 Kd7 Qd1 Bf7 Rc8 c6 Rb8 Ba7 Rd4 Bc4 Ra8 Bh5 Rb8 Ng6+ Kf7 Bb3 Rc8 Be7 Rf8 Bd8 Nb2 Ra6 Nba4 Ne7+ Bg6 Ra5 Rh4 Be2 Bd3 Rh5 Be4+ Rad5 Nf4 Rh6 Ne6 Bh5+ Bg6 Be2 Bh5 Bf5 Bf3 Rh8 Bg2 Bh7 Be4 Kc8 Nd4 Bh5+ Ke6 Rd6+ Ke5 Kd7 Ne6 Be8 Rg2 Qa3 Kf4 Rd5+ Kg4 Qac1 Rf2
7r/4rqrB/1B2Q1N1/Nrn1K2R/2R1P1P1/BnN5/1Q3p1q/NrNq3k w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kc3 Kf7 Kd4 Kg6 b4 a5 b6 h5 d6 c5+ Ke5 g2 d4 a4 d5 a3 f5+ Kf7 b7 c4 d7 a2 d6 c3 b5 h4 b6 h3 f6 Kg6 f7 c2 Ba3 Kg5 f8N Kh4 Qd5 Kg3 Qe6 c1R Nc3 h2 Ng6 Re1 Rc1 Na6 b8N a1R b7 Ra7 Nc6 Nc5 b8Q Nf6 Nd4 Nfe4 Nb3 Rb1 Na1 Nd2 Qb2 Ndb3 e3 Qc7 d8B Qf7 Bd3 f1R d7 f2 Nge2+ Kf3 Bc2 g1Q Bb6 Kg2 d8N Re7 Bd3 Rd1 Bf5 Rdd7 e4 Rfd1 Nc6 R1d5+ Kf4 Qf1 Na5 Qd1 Rc2 Rb7 Nc1 Rdd7 Ke5 Rbb8 Re1 h1Q Rf1 Qh3 Rh1 Qh6 Rh5 Rdb7 Nh4+ Kh1 Bg6 Rbg8 Bh7 Rg7 Ng6+ Kg1 Ba7 Rb5 Bb6 Kg2 Rd2 Kg1 Rd4 Kg2 Rc4 Kg1 Rf5 Kh1 Rg5 Qh3 Rh5 Qh2+
2QR1Bq1/1KN1Nn1Q/2N5/BpqN2q1/1R3N2/2b1P1Pb/k3q3/q2b1Bn1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 f5 cxd5 e5 fxe5 f4 b4 axb4 Nf3 g5 Nh4 h5 Bb2 b5 Qc2 Ra3 Qd1 Rg3 Bc1 Rh6 Nf3 Rf6 Ng1 Rf5 gxf5 g4 Nc3 Rf3 Nb1 g3 Qa4 g2 Qd1 Rg3 hxg3 Qg5 Kf2 Qf6 Ke1 Qd8 Rh4 Kd7 Kf2 c5 Kf3 b3 Ke4 f3 d4 c4 a4 b2 f6 f2 d6 Ke6 a5 c3 f7 c2 d7 Ba6 d5+ Ke7 e6 Kd6 e7 Kc5 e8Q Kc4 d6 Kb3 Kd5 Bh6 Nc3 b1B Bd2 Qe7 d8N Nd7 Kc6 Qe6 f8B Bg7 Nh3 g1Q Bg2 Bc8 a6 f1Q a7 Nh6 a8N Qg8 Nc7 Nf7 Ra8 Be5 Rha4 h4 N3d5 Ba1 Bb4 Bc3 Qd3 c1Q Ba5 Qcg5 Qh7 Bc2 Rb4+ Ka2 Nhf4 h3 Qe6 Qd4 e3 h2 Qg4 Qa1 Bf1 Bd1 Qe6 Qg4 Qe8 h1Q Qe6 Qhh5 Rb8 Nf6 d7 Qhg5 Qef5 Qc4+ Kb6 Qf3 Nc6 Qfe2 Nce7 Ne4 d8N Nd2 Ndc6 Nf3 Qfh3 Bd7 Rd8 Ng1 Kb7 Qc5 Qg4 Be8 Qc8 Bd7 Bh6 Bg4 Bf8 Bh3
1rnq1k2/QN2qq1p/RK1B4/rP1q4/1n3PN1/1r2Q2B/1qB1NR2/1N4N1 w - - 0 1 illegal: No possible last move
2R3Br/k1PNK3/1q4r1/qb1Bq1B1/1b5B/1pQ1P2q/3bq1N1/QR3BN1 w - - 0 1 illegal: No possible last move
n2r3R/1Kp4n/1n1N1n2/Qr1BBP2/4N1qN/3rQP1k/2NRqn2/3B3N w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 a4 fxe4 axb5 g5 g3 g4 h3 Bh6 Bd3 Bg5 Bf1 Bf4 gxf4 g3 Rh2 Bf5 Rh1 Bg4 hxg4 Qc8 Ra2 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 a5 Kd4 h5 Kc5 e5 d4 e3 b4 h4 d6 Ke6 d5+ Kf6 b6 h3 b7 g2 b5 h2 g5+ Kf5 f3 e2 b6 e1Q d7 e4 g6 e3 d6 e2 g7 a4 Qd4 a3 Qe3 a2 Nh3 g1N Na3 Qc8 d8Q Nh6 g8B Qd7 Nf2 Qc8 d7 Qd2 Bd5 e1R Be2 Qb2 Nc2 Ra4 Bd1 Nh3 Qg8 Ra6 d8N Nd7+ Kc6 Ra3 b8N Ng4 b7 Rd3 Na6 Ng5 b8N Nh7 Nb7 Ngf6 Nac5 Nb6 Nce4 Na8 Nd7 Re2 Qf7 Rd8 Ne5 Red2 Rb1 a1N Ng6 Nb3 Qe7 Qe5 Qb4 Nc5 Rb2 Ncd7 Qa5 Ndb6 Ra2 Rb3 Bb2 Rdd3 Bd4 Qe7 Be5 Rb1 Rg1 Rb5 Nh1 Qb4 Rg3 Qe1 Rh3 Qf2 Na3 Qe2 Rd2 Ng5 Rh8 Ngh7 Nhf2 h1N Nc2 Rg8 Nd8 Qd7+ Kb7 Qg7 Nf7 Rd8 Nf8 Qg4 Ng6 Ng3 Neg5 Nge4 Nh1 Nf2 Ne4 Rf8 Na1 Re8 Nc2 Rd8 Bb3 Rb4 Bd5 Rbb3 Bc6 Rb5 Nh4+ Ke6 Ng2 Kf5 Nfd6+ Kg6 Bd5 Kh6 f5+ Kh5 Nf4+ Kh4 Ng6+ Kh3 Nh4 Rbb3 Qa3 Rb1 Qa5 Rb5
B6k/2bb1B1P/3RBR1K/r2q4/B3Q2r/2q1qPB1/q1pNN1r1/4Q1Nb w - - 0 1 legal: proof: c4 a5 g4 g5 b4 f5 bxa5 d5 cxd5 h5 e4 fxe4 Be2 Nc6 Bf1 Nf6 Nh3 Ne5 Ng1 h4 h3 Nh5 gxh5 g4 Bc4 g3 Bf1 Ng4 hxg4 Ra6 Nc3 Ra7 Nb1 Ra8 Nh3 Kf7 Ke2 Kg7 Ke3 e5 a4 c5 d4 b5 f3 g2 g5 g1R d6 c4 a6 b4 a5 b3 a7 c3 h6+ Kg8 d5 c2 a6 b2 h7+ Kg7 d7 Qe8 d8N Qa4 d6 Rg8 g6 Bf5 d7 Be7 Bc4 Rg4 Nc6 Ba3 d8Q Rg5 Qe8 Rf8 Nd4 Qb5 Ba2 Rf6 Bf7 Bd6 Qd3 Bc8 Rd1 Bc7 Ng1 h3 Bd2 h2 Be1 Rg2 Bg3 h1B Qe2 Kh6 g7 Bd7 Rd3 Qc4 Nd2 b1Q Ra5 Qba2 Rb5 Qc3 Rb6 Rb8 Rc6 Rb5 Qe6 Rc5 Qf2 Ra5 Qf5 Rg6 Rf6 Qcb3 Be6 Qc4 g8B Kg7 Bgf7 Kh8 a8B Qc3 a7 Rg4 Bad5 Qc5 Ke2 e3 a8B Qb5 Qg6 e4 Bb3 Qh5 Ba4 Qc5 Rb3 Rh4 Rb6 Qcd5 Rd6 Rg4 N2b3 Rh4 Ke1 e2 Kd2 Rg4 Ke3 e1Q+ Qe2 Qb4 Nd2 Rh4 Qg4 Qc3+ Kf4 e3 Qf2 e2 Qe3 e1Q Qe5 Qee4+ Kg5 Rgh2 Qgf5 Qed3 Qe1 Rg2 Nde2 Rf4 Kh6 Qe3 Qe4 Rh4+
2R1Rb2/1B6/n2QNK1R/1b1RrrR1/P2B2r1/1B3r1b/1P1p3r/rQ1N1k2 w - - 0 1 illegal: No possible last move, all moves rejected
5kr1/2Q2b2/3KP1r1/R1b1N3/bPRB1Bp1/qR1NqR1B/5Q1b/2r2r1R w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra3 g5 Ra2 f4 Ra1 Nh6 h3 Nf5 gxf5 Nd7 h4 g4 Qc2 Nc5 Qa4 Ne4 Qd1 Ng5 hxg5 Ke7 Bg2 Kd7 Bf1 Ke8 Kf2 h5 d4 a5 e4 c5 f6 h4 g6 c4 d6 h3 b6 h2 f7+ Kd7 e5 c3 b7 a4 b8R a3 d5 a2 g7 c2 g8R Qc7 e6+ Kd8 d7 Ke7 d8B+ Kd6 Qd2 Qa5 Ne2 Qc7 Na3 Bd7 Bh3 Qc3 Bb6 Ke7 Nc4 Be8 Ne5 Qa3 Bd4 Rh6 Rb3 Rg6 Qe3 Ba4 Bd2 Be8 Nc1 Rc8 Ncd3 c1Q Qe2 Qcc5 Rac1 a1B Rc4 Ra8 Rh8 Qca7 Rh5 Q7c5 Kf1 f2 Kg2 f1R Qf2 f3+ Kg3 Rc1 Kf4 Qb6 Kf5 Ba4 Bf4 Re8 Qe2 f2 Ke4 f1R Qf2 Qa5 Rg5 Qe1+ Kf5 Qe3 d6+ Kd8 d7 Bc5 Rh5 Ke7 d8Q+ Kf8 Qc7 Rd8 Rbc3 Ra8 b4 Re8 Rb3 Bc3 Rg1 h1B Rg5 Bhc6 Rh1 Rc8 Rh5 Be8 Rg5 Kg7 f8R+ Bf7 Rh5 Qd2 Ke4 Qe3+ Kd5 Be1 Qe2 Bg3 Qf2 Rb8 Rg5 Bh2 Rf5 Rb7 Ra8 Rb8 Ra5 Rg8 Rf6 Ba7 Kd6 Kf8 Bg5 Rc3 Rf3 Rcc1 Bf4 Bc5+
5Rrn/2B2NnQ/1N3QK1/qBQ2Q1p/3PP1bR/p1Rrk1r1/4n1b1/5Q2 w - - 0 1 illegal: No possible last move
1b2B2n/6qQ/1QrPN3/p1r3q1/2P2p2/1NbBBN2/2KBb3/1BRRnk2 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 Qf6 Bh3 Qe7 Bf1 Qd8 b4 h5 gxh5 c5 bxc5 Qe7 Bh3 Qd8 Bxd7+ Ke7 c4 Kf6 d4 Kg5 Kd2 Kh4 e4 g5 d5 f5 e5 a5 c6 f3 h6 f2 h7 f1Q d6 f4 e6 g4 c7 g3 e7 g2 e8B Bb7 c8B Qf3 b6 Ra6 Qc2 Qf6 Bf5 Qe5 Bd3 Qg3 Bcf5 Bf3 b7 Nd7 b8Q Ne7 Qb6 Qeg7 h3 Rg8 h8N Nd5 Nf7 Q3g5 Nd8 Kg3 h4 Be2 h5 Ne5 h6 Ne3 h7 Kf2 h8B Kf1 Ne6 Ng6 Nf3+ g1B Bfe4 Ng2 Bf5 Qd7 Bd4 Bg7 Be3 Nh8 Bfe4 Rf8 Bh7 Rf6 Kc3 Qf7 Bcd2 Rf5+ Qd4 Rb6 Be4 Rd5 Be1 Qfg6 B3f2 Bd3 Nbd2+ Ke2 Rc1 Rc6 Nb3+ Kf1 Qb1 Ke2 Bd2 Bf6 Qc2 Qg7 Bhg6 Re5 Qc5 Rd5+ Bd4 Be3 Rhd1 Kf2 Bh7 Be2 B4g6 Re5 Qf5 Rd5 Qh3 Be5 Bb1 Bf6 Bhd3 Rf5 Ne1 Kf1 Kc2 Bg1 Bf2 Bc3 Qh7 Rd5 Qb4 Re5 Ba7 Bb6 Qb5 Bc7 Bae3 Rec5 Qb6 Bb8 Nf3+ Ne1+
3B1Qn1/1b1QnB1k/Q2p2Rn/qQn1P3/2N1Q3/3R3r/3pP2N/B3rb1K w - - 0 1 legal: proof: d4 b5 h4 e5 g4 g5 a4 c5 axb5 cxd4 f4 f5 fxe5 Be7 gxf5 g4 Bf4 Bg5 hxg5 Bb7 Bc1 Bc8 Kf2 Kf7 Kg2 Kg7 c4 h5 b4 a5 c5 g3 c6 h4 b6 a4 b5 d3 b7 a3 f6+ Kh7 c7 a2 f7 Ra4 f8Q Ra5 b6 Ra7 Rh3 Ra8 Nd2 Qe8 Ngf3 Ra3 Nc4 Ra8 Bb2 Qd8 Kh1 Nc6 b8Q Nce7 Bg2 Bb7 c8Q d6 Qd7 d2 Q1a4 Ra6 Rg1 a1N Nh2 Nb3 Ba1 Nc5 Bd5 Ra5 Rg2 Rb5 Rg1 Rb1 Qa6 Re1 Qf3 Qc7 Qbf8 Qd8 Bf7 Qa8 Qab5 Qa5 Qa8 Bc6 b7 Bd5 b8B Bb7 Ng4 g2+ Kh2 Qd8 Qaa6 Qa5 Rg3 h3 Bc7 Qa4 Bd8 Qa5 Rf1 g1N Kh1 h2 g6+ Kg7 Qe4 Nf3 Rh3 Nd4 Rg1 Ndf5 Rb3 Rh3 Rd3 Kh8 g7+ Kh7 Nge3 Rd1 Nf1 Rb1 Rg6 Nfh6 Kg2 h1B+ Kg1 Rb4 Nh2 Bf3 Qdg4 Bg2 Qgd7 Bf1 Kh1 Rb2 Qec6 Rb1 Qg2 Re1 Qe4 Nhf5 Rgg3 Nf6 g8Q+ Kh6 Qge8 Kh7 Qf8 Nfg8 Rg6 Nfh6
K1N1r3/2qqbQ2/6B1/1PBRbNr1/PqQ2Bk1/5p1p/N3rRB1/2nB4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 e5 c4 exf4 cxd5 Qe7 Rh3 Qd7 Rh1 Qd8 Qb3 a5 Qc2 Ba6 Qd1 b4 b3 Bb5 axb5 a4 Nf3 a3 Ng1 Nd7 Rh3 Nb6 Rh1 Na4 bxa4 Be7 Kf2 Bc5+ Ke1 Bf8 Kf2 Kd7 Kf3 f5 d4 h5 e4 c5 g4 c4 d6 Ke6 g6 h4 g5 h3 e5 b3 d5+ Kd7 e6+ Kc8 e7 Kd7 e8B+ Kc8 g7 a2 d7+ Kc7 g6 Kd6 Bg2 Ke5 d6 b2 Qc2 c3 Rh2 Kf6 Ne2 Kg5 Nd4 Qb8 d8Q+ Be7 d7 Rh4 Qc7 Qa7 d8B Nh6 g8N Ng4 g7 Rh6 Bg6 Nf2 Qc4 Rh5 Bb6 Rb8 Q2b3 c2 Bc5 Nd3 Nc3 b1Q Bd2 Qe1 Rd1 a1B Na2 c1Q Qf7 Bb2 Qbc4 Re8 Be3 Qd7 Bd2 Bd6 Ne7 Be5 g8B Ba3 Be3 Qb4 Nc8 Qc2 Rd2 Nc1 Rf2 Kh4 Rh1 Rg5 Rd1 Qc7 B8h7 Qcd2 Bh5 Qd3 B7g6 Qdd2 Nb3 Qdd6 Rd5 Qdd7 Nd4 Nb3 Ke2 f3+ Kd3 f4 Ke4 Nc1 Bd2 Rg4 Nf5+ Kg5 Re2 f2 Bde3 f1R Rf2 Rg3 Bhf3 Re1 Bd1 Ne2 Bd2 Kg4 Bde3 f3 Bf4 Rd8 Rd6 Re8 Kd5 Qdd8 Rd7 Nc1 Rd6 Re2 Rd7 Qca5 Kc6 Qe7 Kb7 Qc7+ Ka8 Qed8 Rd6 Qdd7 Rd2 Qb1 Bce3 Be7 Bc5 Qb4 Nh6+ Kh4 Rd5 Rg5 Nf5+ Kg4
8/6RQ/B2P1PRQ/2N4R/5KNn/krqp1p1b/1qrbqBB1/4RbR1 w - - 0 1 illegal: No possible last move, all moves rejected
NkBR1Nb1/2R4N/2P2B1b/p2r4/N1nr1q1p/B7/r2N1QPQ/K2q3q w - - 0 1 illegal: No possible last move
bQBB1R2/1rq5/1p2Q3/pP1q3r/P6R/K1nnQ1Br/2N1q3/2BN2Bk w - - 0 1 legal: proof: e4 c5 g4 f5 exf5 h5 gxh5 d5 c4 Qd6 cxd5 Qd8 d4 cxd4 d6 e6 Ba6 Be7 Bd3 Qd7 Bf1 Qd8 Qd3 Qc7 Qd1 Bd8 Bg2 Qb6 Bf1 Bc7 dxc7 Qd6 Na3 Qd5 Nb1 Qd8 Kd2 Kf7 Kc2 Kf6 Kb3 Ke5 h4 Ke4 f4 a5 a4 g5 h6 d3 h7 e5 h5 b6 f6 d2 h6 g4 f5 g3 f7 g2 f8Q Qe7 f6 Qd6 f7 Qd5+ Ka3 Qd4 b4 Ra6 b5 Qc4 Nf3 g1R Ne1 Nf6 Bh3 Nc6 Qb3 d1Q Nc2 Bb7 c8Q Ba8 Qe6 Nd5 Qb8 Ncb4 f8B Rg3 Bd6 Qc7 Nc3+ Kf3 Ra2 Qd3 Nd1 e4 Bg4+ Kg2 Rh4 Qe2 Qe3 Rh3 Bg3 Nd3 Rb2 Kh1 Ra2 Rd8 h8B Ra7 h7 Rb7 Bd4 Nc3 h8B Rd5 Bhf6 Rh5 Bd8 Qf3 Rb2 Qf5 Rb4 Qd5 Rc4 Qf7 Rc8 Qc7 Qg5 e3 Qgh6 e2 Bg1 e1Q Qhe3 Qcc6 Be7 Nb4 Qf7 Ra7 Rf8 Rb7 Bc8 Nd3 Qfe6 Qe2 Bd8 Qc7
r2q2n1/6P1/RrRqB3/Bp3r1P/nRqk1p1Q/2NN1K2/3R3R/3QbN2 w - - 0 1 legal: proof: c4 a5 g4 h5 b4 axb4 f4 d5 cxd5 e5 fxe5 g5 gxh5 g4 h3 g3 Qb3 Nc6 Qd1 Bg4 hxg4 Nb8 a4 Ke7 e4 f5 Ke2 b5 d4 c5 a5 c4 d6+ Ke6 d5+ Kf7 e6+ Kf6 d7 Ke5 g5 c3 a6 b3 e7 g2 e8Q+ Be7 d6 f4 a7 b2 g6 c2 g7 Qc7 d8N Qc6 d7 Rh6 Kf3 Rh8 Rh2 Rh7 Nd2 b1Q Ne2 g1R Ra4 Na6 Ne6 Rg4 d8R Qb2 Nc5 Nf6 Bh3 Qd5 Nf1 Rb8 a8R Qdd4 Bd2 c1Q Ba5 Qbd2 Rb4 Qcc4 Nc3 Rh6 Rc8 Rhg6 Qd8 Ng8 Rc7 Rgb6 Rc6 Bh4 Ra7 Bg3 Qh4 Qd8 Ra8 Q2d7 Nd3+ Kd4 e5 Be1 e6 Nc5 e7 Q7c7 e8R Na4 Ree2 Qcd6 Ra6 Rg5 Be6 Ra8 Rd2 Rf5
q7/2pNNQRN/1KB2B2/1N4PR/1k2q1N1/nb2n1Q1/1pPb4/r4nQq w - - 0 1 illegal: Other
2B5/n1N5/B7/1Q1bnBRK/1b3rPQ/1Br2r2/PNpn1pk1/B1QbR3 w - - 0 1 legal: proof: c4 a5 f4 g5 d4 d5 cxd5 c5 b4 axb4 h4 e5 fxe5 c4 hxg5 Qa5 Ba3 Nd7 Bc1 Qc5 dxc5 Nb8 Kf2 Ke7 Kg3 f5 Kh4 b5 e4 h5 e6 c3 e5 b3 g6 f4 g7 b4 c6 f3 c7 f2 Ba6 c2 Bb2 Nf6 g8B Nfd7 Nd2 Nc6 Nc4 Na7 Ne2 Rb8 Kg5 h4 Re1 h3 Qc1 h2 Nd4 h1B Nb5 Rh3 g4 Rf3 Rb1 Bb7 Kh5 Rc8 Ba1 b2 Bh7 b3 d6+ Ke8 e7 Kf7 e8B+ Ke6 Beg6 Kd5 e6 Ne5 d7 Bb4 e7 Rf4 e8Q Bf3 Bf5 Bd1 Nc3+ Kd4 d8Q+ Bd5 Qh4 Rf3 Qd7 Rf8 Be6 R8f4 Bhg8 Kd3 c8B Kd4 Nb5+ Kd3 Rh1 Ke4 Nc7 Rc3 Bgf7 Kf3 Qb5 Kg2 Bf5 Rff3 Qcg5 Rf4 Rc1 b1N Nb2 Nd2 Rh3 Be2 Re1 Bd1 Rd3 Be6 Rd6 Bd5 Rg6 Rff3 Qh6 Rf4 Rg5 Rcf3 Nc4 b2 Bg8 b1R Bf7 Rbb3 Nb2 Rbc3 Bg8 Be4 Bb3 Nf1 Qhb6 Bc6 Qe3 Bd5 Qc1 Nd2
1N3N1R/2Nq2bb/NN2P1p1/1R5B/1Qb1r1BP/Q1p1b3/4r2k/1Kn3Rb w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 Rh6 gxh5 Rh7 d6 Rh8 e4 Be6 f4 Bd7 d4 Nc6 d5 Nce7 f5 Nc6 Be3 Bc8 Bd4 exd4 e5 Nce7 Qe2 Ng6 Qg4 Nf4 Qd1 Ne6 fxe6 Bb7 Na3 Ba6 Nb1 Bc8 Kd2 c5 Kc1 f5 h4 a5 b4 f4 d7+ Ke7 b6 f3 h6 f2 h7 c4 b7 d3 b8N c3 b5 a4 b6 a3 b7 a2 Qg4 Ra3 Nf3 Nh6 Rg1 Ra4 Na3 Re4 Ng5 Nf7 Be2 f1B Rb1 a1B Rb5 d2+ Kb1 d1B Nc4 Bb2 Nb6 Bc1 Na6 Be3 b8N Bb7 Qf4 Qe8 d8N Qd7 Bg4 Rg8 h8R Bc4 Nh7 g6 Bh5 Bg7 Nf8 Bdb3 Qg4 Nd6 Qf4 Nf5 Qg4 Ng3 d6+ Ke8 e7 Ne2 Qf4 Nc1 Nde6 Ba8 Qg4 Kf7 Nec7 Bad5 Nh7 Re8 Nf8 Qe6 d7 Ba8 d8Q Qd7 Qd1 Bc6 Qd6 Bb7 Qb4 Bbd5 Nca8 Bb7 Nh7 Ke6 N8c7+ Kf5 Nf8 Kf4 Qc8 Ba8 Qb7 Bg8 Qa7 Bb7 Qa8 Bh7 Qa7 Bc4 Qa8 Rc8 e8B Bbd5 Bf7 Re8 Be6 Re7 Beg4 Re6 Rf1+ Kg3 Rg1+ Kh2 Qa7 Rf6 e6 Rf2 Nc5 Re2 Qaa3 Re5 N5a6 Bh1 Qa1 Re4 Qab2 Bg5 Q2a3 Be3
1rR5/2p4B/1r1kpB1n/3N3N/NR1qPb1N/b5rr/NP2K3/3QrRQ1 w - - 0 1 illegal: No possible last move, all moves rejected
b1q2Bk1/rpb5/2pQ3n/2Nb4/bRB5/2P2B1R/bRQP1R1R/Kr2N3 w - - 0 1 illegal: Other
B1r4q/bB2rb2/2Q2N2/3KBP2/BbP1R1Bk/2Np4/3Rn1Qp/2b1rR2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Nb3 g5 Na5 g7 Nc4 Bd2 Ne5 Bc1 Ng6 hxg6 Qc7 Rh6 Qb6 Rh1 Qd8 Kf2 e5 Kf3 Ke7 Ke4 h5 b4 a5 b6 h4 b7 d6 b8Q a4 b5 a3 b6 h3 b7 h2 Nf3 d3 Ra2 d2 Bb2 Nh6 g8B Be6 g7 Bf7 g6 Kf6 Qc1 d1R Bh3 Rh7 Nfd2 Kg5 Bg4 Kh4 Nc3 Be7 Ba1 Bg5 Rf1 Be3 Qb2 Re1 Qc7 Rc8 b8R Qf6 Rb4 Ba7+ Be2 Ng4 Qc6 Ne3 Bg4 Bc4 Bd5 Ng2+ Be2 Qf8 g8B Re7 g7 Nf4 Bge6 Qf6 g8B Qh8 Bd7 Bb3 Rd4 Bc4 Qbb7 Bb3 Rb2 a2 Bgf7 Bc4 Bh5 Bb3 Bg4 Bc4 Rb4 Bb3 Bb2 a1B Rd3 Ba2 Rbd4 Bb3 Re3 Ba2 Ba6 Ne2 Qa8 Bb3 Bb7 Ba2 Nc4 Bb3 Nb6 Bc4 Rd2 Bb3 Bc1 Bb2 Be8 Ba3 Bb2 Bc4 Ba1 Bc1 Nd7 Bb3 Nf6 Ba2 Bc4 Bb3 Kd5 e4 Nb5 Ba2 Be5 Bb3 Nc3 Ba2 Ref3 e3 Rf4 Bb3 Re4 Ba2 Qc7 Bb3 Ba4 Ba2 Kc6 d5 Kd6 d4 Kd5 d3 Qc6 Rcc7 Qg8 Rc8 Ba8 Bb1 Ba6 Ba2+ Kd6 Bb3 B6b7 Bf7 Ncd5 Nf4 c4 e2 Qg6 Rd1 Qg7 e1B Nc3 Ne2 Qg8 Bef2 Qg7 Re1 Qg6 Re6+ Kd5 Bfc5 Qb6 Bb4 Qg1 Qe8 Qg2 Qh8 Qh6+ Bh5 Qg6 Re7 Qe8 Bg6 Qc6 Bf7+
1b1q1Qb1/2k3KN/3n1R1P/3P1Br1/1p1R1rRB/bNp2Q2/b2rQQ2/7Q w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Nc6 exf5 axb4 a3 b3 a4 b4 Bd3 Na7 Bf1 Nb5 axb5 Ra3 Qc2 Ra4 Qd1 Ra8 Ke2 Kd7 Kd3 c5 Ke4 e5 d4 g5 f4 g4 h4 b2 h6 g3 d6 c4 h5 c3 f6 g2 Kf5 e4 Kg6 e3 b6 e2 f7 e1R h7 Ra2 f5 Kc6 d7 Re7 f6 Re3 b7 Bd6 f8Q Bf4 b8Q Ra7 f7 Ne7+ Kg7 Ba6 Qb6+ Kd5 Nf3 g1B Ng5 Qa8 d8R+ Rd7 Rh4 Qc8 Bd3 Rg3 Bf5 Bge3 Nd2 b1B Nb3 Bc4 Qe2 Rg4 Ra6 Bb8 Qa7 Re4 Rg4 Ba2 Rf6 Rf4 Bd2 Qc7 Be1 Bc1 Bh4 Ba3 Qb6 Rd6 Qa7 Kc6 Qa8+ Kb6 Qaf3 Nc8 Rd7 Rc6 Qc5+ Kb7 f8Q Nd6 h6 Bg8 Qcd5 Kb6 Qh1 Qc8 Qdf3 Qd8 Qef2 Rc5 Qe7 Bd5 Qee2 Re8 h8Q Bg8 Nh7 Rb5 Qee1 Re2 Qef1 Rd2 Q1e2 Bf7 Qf8 Bg8 Rc7 Rd5 Rc4 Re5 d5+ Kb7 Bb1 Rh5 Rd4 Kc7 Bf5 Rg5+
R1K5/7B/1rq1Nr1R/1b1pQ2r/5RP1/n1q1R2B/k1npRQ1P/1r1NN3 w - - 0 1 illegal: No possible last move, all moves rejected
4qqk1/2Nb4/2KR2nb/Rp1N3B/Q2rbQ2/b3B1B1/PBPBn2p/3N4 w - - 0 1 illegal: No possible last move, all moves rejected
2b2QR1/2r1r1Q1/1k5P/N1pq1r2/2K1NBB1/P5np/BqBrB1R1/2nR4 w - - 0 1 legal: proof: h4 d5 f4 g5 b4 a5 c4 h5 cxd5 e5 fxe5 Be7 hxg5 axb4 g3 h4 g6 h3 Qc2 Be6 Qd1 Bh4 gxh4 Bc8 e4 Kd7 Ke2 c5 Kd3 Kc7 d6+ Kb6 g7 f5 d7 b3 h5 b2 h6 f4 a3 f3 e6 f2 e5 Ka5 e7 b5 e8B b4 e6 b3 e7 Ra7 Nc3 b1Q+ Kc4 b2 d4 Ra8 d5 Ra7 d6 Rh7 Rh2 Bb7 Bf4 Qc1 Nf3 b1R Bh5 Rh8 e8B Bc8 Qd4 Rb2 Beg6 Na6 Be2 f1R Ne5 Qc7 d8R Kb6 d7 Rd2 Nc6 Qb2 Na5 Rh7 Rg2 Nf6 g8B Re7 Ne4 Qe5 Bhg4 Rc7 Rd1 Nh5 B8e6 Nb4 Rg8 Qg5 d8Q Na2 Qf8 Nc1 Qdg7 Qge5 Ng3 Rf2 Bc2 Qd6 Ne4 Ng3 Bd7 Rf3 Bda4 Rf1 Bab3 Rf2 Ba2 Qd7 Be3 Rf5 Bf4 Qd5#
k1N5/BqQ3N1/r2pnqN1/r1B1p3/2Q3qB/3P2RP/Kn3b1q/3N1RN1 w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 b5 bxc5 b4 g4 b3 f6 Bb7 axb3 Kf7 b4 Ke8 b5 Bc8 f4 h5 g5 Rh6 f5 Rh8 Be2 Bb7 Bf3 Bd5 Bg4 hxg4 g6 Bf7 Ra6 Qb6 gxf7+ Kd8 Ra4 Kc8 Ra6 Qd8 Ra1 Kc7 Ne2 Kb7 c4 e5 b6 a5 h3 g5 d3 a4 Kd2 g3 Kc3 g2 Kb2 g1Q c6+ Kc8 c5 g4 b7+ Kc7 Qb3 g3 Nbc3 g2 Bg5 Ra6 Bh4 Rb6 Rf1 Ne7 Nd1 Qh2 Rhg1 Na6 b8B+ Kc8 c7 Kb7 Ka3 Nc8 Qc4 Bh6 f8B Be3 f7 Bf2 f6 d6 Bh6 Rb5 f8N Nb6 f7 Qf6 Ne6 Ra5 f8N Rg8 Kb2 a3+ Kb1 Rg7 c8Q+ Ka8 c6 Nc5 c7 Nba4 Be3 a2+ Ka1 Rd7 Ng7 Ne6 Bc5 Re7 Qd8 Rd7 c8N Rda7 Ng6 R7a6 Rh1 g1Q Bba7 Qg4 Rhg1 Nb6 Kb2 a1Q+ Kb3 Qad4 Rg3 Qd5 Ng1 Na4 Ka2 Qb7 Qc7 Nb2+
5N1B/b3Q2q/R1Rp2bN/3P1n1n/2nB1NQQ/PpN4q/2kr1N2/4K1n1 w - - 0 1 legal: proof: e4 c5 g4 h5 gxh5 b5 b4 f5 exf5 a6 a3 Ra7 Bc4 Rb7 Bb3 c4 Ba2 Rb6 Bb3 a5 bxa5 cxb3 axb6 b2 h4 Kf7 d4 Kf6 c4 e5 f4 g5 h6 e4 h5 b4 c5 e3 c6 b3 b7 e2 d5 g4 h7 g3 c7 g2 h6 Qe8 Be3 Qg6 Nc3 b1N Bd4+ Ke7 f6+ Kd6 f7 Be7 f8N Qg4 f5 Nc6 b8Q Qg7 f6 Nd2 f7 Nc4 Nh3 g1N Qb7 Nf6 Ne6 Nh5 f8N Bg5 Rb1 Ne7 Rc1 Nf5 Nf2 Be3 Nf4 Qg3 Qd3 Qh3 Qe4 Rg8 h8B Rg2 h7 Rh2 Bdf6 Ba7 Bfg7 Kc5 Bf6 Nb2 Bd4+ Kc4 Qe7 Rg2 Qa8 Ba6 Qad8 d6 c8Q+ Bc5 Qcd7 Ba7 Qh4 Bb5 Q8e7 Bc6 Qde6 Be8 Qe4 Bg6 Qf3 Rg3 Qfg4 Rd3 Rc2 Qg2 Rh3 Rd2 Re3 Qh2 Re4 Qh3 Bdg7+ Kc5 Ra4 Nc4 Bf6 Ne5 Ra6 Kc4 Bhg7 Kd4 h8N Ke3 Nf7 Kd4 Bh8 Ke3 Nfe4 Nc4 Ng2+ Kd3 Nh6 Be8 Bd4 Bf7 Rc1 Bg6 Rb1 Kc2 Nf4 Bb6 Ra1 Ba7 Nf2 Qg2 Nfe4 Nf6 Na2 Ne5 Qhh5 Nf7 Ng8 Ne5 Qh6 Qh1 Kf2 Qh5 Qhg5 Qh7 Nh6 Nh5 Rf1 Be8 Q5h4 Bg6 Bc5 Kb2 Rc1 Rd4 Rc4 Rd2 Nac3 Kc1 Bb6 Kc2 Rc6 Nc4 Bbd4 Nhg7 Kg2 e1Q+ Nf2 Qe3 Kf1 Qh3+ Ke1 Nh5
1N1QR1Q1/1Bb1p2N/5RP1/2qnn2R/k3BP1n/r4p2/K1N1q1r1/3NN2n w - - 0 1 illegal: No extended proof kernel
Q1qb1B1b/N3p2n/1NQ1NP1n/B3pR2/2q1B2k/2P3b1/1R1K3b/1N1r3N w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 a5 c4 h5 b4 f6 g4 a4 gxh5 d6 e5 fxe5 b6 a3 b7 Ra6 b5 Rc6 Bd3 Bd7 Be2 Rc8 b6 Bb5 cxb5 c4 Bf1 c3 Nh3 c2 Ng1 Rc3 dxc3 Qc7 Kd2 Qc8 Ke1 Qd8 f4 Kf7 h4 Kf6 h6 g5 h5 d5 f5 g4 h7 d4 h6 d3 Rh5 g3 Nh3 g2 Nf2 g1B Bg2 a2 Kd2 Qc7 Qf3 Bh2 Nh1 Bg1 Qc6+ Qd6 Be4 Nd7 b8N Qe6 b7 Bg7 b6 Nf8 Ba3 Bf2 Na6 Bg3 b8N Bh2 Bd6 Qc8 b7 Bg3 Rh2 Kg5 Bb4 Kg4 Re2 Kh4 Ba5 Bh2 Nc5 c1B+ Ke1 Bf6 Rb2 Be3 Ne6 Bb6 Kd2 Bd8 Nd7 Bg7 b8N Bg3 Ke3 d2 Nb6 Bh2 Ke2 d1Q+ Ke3 Qb3 Kd3 Nf6 Kd2 Ng4 f6 Rg8 h8Q Qc4 h7 Nh6 Na3 Bg3 Rf1 a1B Rf5 Bh2 Nb1 Bg3 Rb4 Bb2 Rb3 Ba3 Rb2 Bc5 Na8 Nd7 Nb6 Re8 Qg8 Nf8 h8B Nh7 Qf8 Bg1 Qg8 Bf8 Bg7 B1h2 Qh8 Ng4 Bh6 Bg7 Qf8 Bh8 Qg8 Bf2 Bf8 Nh6 Qg2 Bfg3 Qa8 Q8c7 Nc6 Qb7 Na7 Qbc8 Bg7 Rg8 Bf8 Rg5 Qf2 Rg4 Qc5 Rf4 Qd6 Rf1 Qdc6 Rd1+
B2B3q/rP3b1K/pP2n3/R1r1qN1B/Nn2r3/R2p2Q1/NB5Q/1kr2B2 w - - 0 1 legal: proof: g4 b5 d4 c5 f4 cxd4 a4 f5 axb5 g5 fxg5 f4 h4 e6 e4 f3 g6 Qb6 g7 Be7 g5 Qd8 g6 Bg5 hxg5 f2+ Kd2 Qc7 Bc4 f1N+ Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 Kh5 Ke4 b4 d5 c4 d3 c5 e5 b6 d4 c6 d2 c7 h6 f6 a6 b5 d3 f7 Bd7 f8B Nc6 c8N Nb4 Bb2 Qe8 Ra5 Ra7 Ne2 Nd5 Qc2 d1R Nbc3+ Ke3 Na4 e4 Nc1 Be6 Nd6 Nb4 Na2 Bf7 Be7 Rc1 Bd8 Ne7 g8B Ned5 Qh2 Qe5 Rg1 Nc7 Nf5+ Kf3 Rg2 e3 Rc2 Ke4 Rc3 e2 Ra3 e1R Bh7 Ne6 Bg8 Be8 Bf7 Rc5 g7 Rec1 Kg6 h5 g8B h4 Bh7 h3 Kh6 Rg8 Bh5 Bf7 g6 Re8 g7 Kd5 g8Q Kc4 Qgg3 Ree7 Qhg2 h2 Bg8 h1Q Kh7 Red7 Q2h2 Rd4 Bf3 Rg4 Ba8 Re4 b7 Qg1 b6 Qgd4 Kh6 Qh8+ Bh7 Qde5 N2c3 Qe8 Bg6 Qf8+ Kh7 Qe8 Ra1 Kb3 Bh5 Qf8 Qh1 Kc2 Ra3 Qe8 Na2 Kb1 Qhh2 Q8h8#
k1B5/1pr2BNP/b2n1n1R/q1BR1QnK/1Rn5/Nr1B2q1/p3P3/B4Q2 w - - 0 1 legal: proof: b4 d5 g4 e5 c4 h5 cxd5 c5 gxh5 c4 f4 Qa5 fxe5 Bc5 bxc5 Qxa2 Kf2 Kd8 Kg3 Kc7 Kh4 f5 d4 a5 d6+ Kc6 d7 f4 d8Q g6 d5+ Kb5 h6 Ka6 h7 Ka7 d6 c3 e6 g5+ Kh5 f3 h4 g4 c6 a4 d7 a3 e7 c2 e8B g3 c7 f2 Bf7 g2 Nf3 g1N Bh3 f1N Qf6 Ne7 d8R Nd2 Rd5 Nc4 Qf1 Nf5 Ng5 Nf3 Ne6 Nd7 Ng7 Nfd6 Bf5 Ng5 Bd3 Re8 h8B Re3 Bb2 c1Q Q6f5 Qe1 Rh3 Rb8 Bd4+ Ka8 Bc5 Qg3 Rh1 Qd2 Rh2 a2 Na3 Qa5 Rb1 Rf3 Rb4 Re3 Be4 Rb3 Bd3 Nf8 Rh3 Be6 c8B Nd7 Kh6 Qa7 h5 Qh2 Ne8 Qe5 Rd4 Bd5 Rh1 Bc6 Rd5 Nf6 Bce6 Bb5 Kg6 Qb6 h6 Ba6 h7 Ng8 Rh6 Qa5 Kh5 Qg3 Ba1 Rc8 Ng7 Rc7 Bc8 Nf6+
5r2/pN1N1n2/bB3BQ1/P3NQn1/R2n2Nk/P1b1Np1n/1rR4r/1K5R w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 h3 gxh3 Kd7 h4 Ke7 h5 Ke8 e3 b5 Qb3 b4 Qd1 Qd6 Bc4 Qe7 Ba2 b3 Ne2 bxa2 Ng1 Qa3 bxa3 Bh3 Kf2 Bg4 Ke1 Bc8 d4 Ke7 Kd2 g5 Kc2 c5 h4 f5 e6 Kf6 d6 f4 e7 f3 e8Q c4 a5 c3 d7 g4 d8B+ Kf5 d5 g3 h6 Kg4 e4 g2 h7 Kg3 e5 Nf6 e6 Nfd7 h5 Bc5 h6 Nc6 d6 Rf8 h8R Nde5 h7 Nd7 e7 Rf6 Qd3 Be3 Bb2 Rf4 Qf5 Ncb8 Nd2 Nf8 d7 Ne6 Qeg6+ Ng5 e8N Bb7 Bb6 Bd4 d8N Nc6 Nc4 Ba6 Nf6 Ne5 Nb7 Nf7 Nd7 Rf8 Rc1 a1R Nh3 g1N Ne3 Ra2 Nf2 Rh4 Nfg4 Rh2+ Kb1 N1h3 Rc2 Kh4 Ba1 Ra8 Re8 Bf6 Re4 Rf8 h8N Be5 Ra4 Bd4 Rd2 c2+ Kc1 Nd6 Nf7 Bc3 Nfe5 Ndf7 Rg2 Bd4 Kd2 c1N+ Bb2 Nb3+ Kc2 Bc3 Kb1 Nd4 Rc2 Bd2 Bc3 Be1 Bb4 Bd2 Be7 Bc3 Bf6 Rb2+
R3NN2/3n1p2/N1PqBr2/1B1qqP2/3Q1NBn/1bQN1q2/R4n1p/2K3k1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 d5 e4 d4 h4 Qd7 f4 Na6 f5 Bh6 Bf4 gxf4 g5 Nb8 g6 Bg5 hxg5 Qd8 Rh2 Ra6 Rh5 Rd6 Rh1 Rd5 exd5 Qd7 Qc1 Qd6 Qd1 Qd8 Kd2 Kd7 b4 e5 c4 h5 g7 h4 c6+ Kd6 g6 a4 b6 f3 b7 d3 c7 h3 c5+ Ke7 b5 Kf6 c6 Kg5 d6 Kf4 d7 Kg3 b6 Kf2 Rh2+ Kg3 Qb3 e4 Kc1 a3 Rha2 e3 Qc3 f2 Nf3 h2 Ne5 Qg5 d8Q Rh3 Qdd4 Nf6 g8N Rh6 g7 Ng4 Nf6 Qg6 g8B e2 Ne8 e1N Bh7 Nd7 b8N Nf3 b7 Qd6 Bg6 Nh4 Bh5 Rf6 Na6 Qd5 Be2 Kg2 b8N Kg1 Bf1 Nf8 Be2 Be6 c8B Nd7 Bf1 Qd6 Be2 Bb3 Bf1 Nb6 Nbd7 Qd5 Nf8 Nd7 Neg6 Qd6 Nd2 Qd5 Nc4 d2+ Kb1 Qd6 Nce5 Qd5 Nd3 d1Q+ Qc1 Q1f3 Ngf4 Qd6 Qcc3 Qfd5 Rb2 a2+ Kc1 Nb6 Be6 Nd7 Rab1 a1Q Ra2 Ne3 Bg4 Nd1 Rd2 Qaa5 Ra1 Qac7 Bfe2 Q6e5 Rda2 Qcd6 Qdb4 f1Q Qbd4+ Qf2 Ndc5 Kh1 Bb5 Qff3 Ncd3 Nf2 Nac5 Bd1 Ra8 Bb3 Na6 Kg1 Ra4 Qg2 Ra2 Qgf3
1Bq2n2/2BP1pk1/1B1NB3/b1Nb2N1/Q3b3/1qP3q1/BRRK1p2/r3q2Q w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 a4 b5 axb5 a5 Nh3 d4 Ng1 Ra7 Nc3 c5 Nf3 Na6 Nd5 Nc7 Nc3 Nd5 cxd5 c4 Nb1 c3 Ng1 c2 Na3 Rc7 Nb1 Rc3 dxc3 Bb4 Ra4 Be7 Ra1 Bf8 e4 g5 h4 a4 b4 a3 h6 f3 b6 g4 e5 a2 h7 f2+ Kd2 d3 b5 g3 d6 g2 b7 Qa5 b8B Bg7 h5 Kf8 b6 Qa8 e6 Bf6 e7+ Kg7 e8B Bd7 h6+ Kf8 b7 Qa6 Nf3 g1Q Ng5 Bc8 Bd7 Be5 Na3 Qa4 Be6 Qc4 d7 Nf6 Nb5 Qg3 Rb1 a1Q Rb2 Bc7 Nd6 Qb1 Bg2 Bd8 Bgd5 Ba5 Qg4 Rg8 h8B Nh7 Be5 Qba2 Re1 Qab3 Re2 Rg7 Qf4 Kg8 Bd4 Nf8 Bb6 Rg6 h7+ Kg7 Qh4 Rh6 Qe4 Rh1 B8c7 Qc5 b8N Bb7 Qa4 Re1 Bc4 Be4 Na6 Qc6 Nc5 Qa8 Rb1 Qc8 Ba3 Rh1 Rb2 Ra1 h8Q+ Kg6 Qh1 Kg7 Nf3 Bd5 Ke3 c1Q+ Red2 Qg2 Ng5 Qe1+ Re2 d2 Kd3 d1B Rec2 Qeg1 Kd2 B1f3 Bb8 Qg3 B6c7 Qbb7 Ba2 Qb3 Bb4 Bb6 Ba5 Bfe4 Bd8 Bc7 Bb6 Qf1 B6a7 Bb6 Bdc7 Ba5 Bab6 Qe1+
2r1b2N/3RR1nQ/B4P2/p1k2qN1/1R3P2/2r2r1K/4pRRB/rQ1rr2B w - - 0 1 illegal: No possible last move
8/2kr2N1/1RrN2n1/2PR1qn1/2QNn1NB/3R2q1/B3KpPp/QNn1n3 w - - 0 1 legal: proof: h4 b5 a4 g5 axb5 c5 hxg5 c4 e3 c3 Ke2 cxd2 Kd3 d5 Ra6 e5 Ra4 d4 Ra1 e4+ Kc4 d3 Kc3 Bc5 f3 Bd4+ exd4 e3 Be2 Bb7 Bf1 Be4 fxe4 Kf8 Na3 Ke7 Nb1 Ke8 b4 Kd7 g6 f5 g7 a5 d5 h5 d6 f4 b6 a4 e5 h4 b5 f3 e6+ Kc8 d7+ Kb7 e7 f2 e8N e2 Ra3 e1N Nf3 h3 Ne5 h2 Ng4 Nf6 g8Q Nc6 Nd6+ Kb8 b7 Ne5 Qc4 Qg8 d8N Qf7 Ne6 Rd8 Ng7 Rd7 Kd4 Qf8 Ke3 Ne4 Bb2 Ng6 Bf6 Ra6 Bh4 Ng5 c3 Ka7 b8N Kb6 Nc6 Kc7 Nd4+ Rc6 Qc1 d1Q b6+ Kd8 b7 d2 b8R+ Kc7 Rd8 Qb3 Ke2 d1N Qb2 Qf5 Qa1 Qb8 Rb3 a3 Rb5 a2 Rd5 Qb5 Rb8 Qb3 Rb6 Ne5 Qd3 Ng6 c4 Qa3 c5 Qb3 Qc4 Qg3 Kd2 Nc3 Be2 Nc2 Rd1 Ne1 Bf3 Nce4+ Ke2 Nh8 Rd3 Ng6 Qb2 a1N Qbc3 Nb3 Qa1 Ned2 Be4 Qf7 Bf5 Nde4 Be6 Qf5 Qc2 Nf7 Re5 Nbd2 Ba2 Nfg5 Rd5 Nb3 Qc4 Nc1+
NBK1B2Q/1N3Q1n/4r2R/Np1B2q1/PpqPB1rn/3RB3/5rr1/1k2n3 w - - 0 1 legal: proof: f4 d5 b4 f5 c4 e5 fxe5 a5 cxd5 axb4 g3 Ra6 Qc2 Ra3 Qd1 Ra8 Nf3 g5 Qb3 g4 Qd1 f4 Ng1 f3 h3 Bh6 Rh2 Bf4 gxf4 g3 Rh1 Bg4 hxg4 Qf6 Rh2 Qd6 Rh1 Qd8 e4 Ke7 d4 b5 Kd2 h5 Kd3 c5 a4 h4 e6 Kd6 e7 f2 e8B g2 f5 h3 e5+ Ke7 Ke4 c4 g5 h2 g6 c3 e6 Kf6 g7 c2 e7 Qb6 d6 Qa7 Kd5 Rh3 d7 Rc3 Kd6 Rb3 d8N Nd7 Na3 Nb8 Nh3 g1R Bd3 f1R Nc4 Rf2 Be4 Nd7 Na5 Rg4 Ra3 Rbg3 Be3 c1N Ndb7 Rgg2 Kc7 Ne5 Rd3 Nf3 Ng5 Nh4 Qf1 Qc5+ Kd7 Qc3 Ne6 Qc4 Nc7 Ra6 Kc8 Re6 Bf7 Qc6 e8B Qc4 Rc3 Nd3 Ra3 Nh6 g8Q Ne1 Qh7 Ng8 Rd3 Rc6 Bfd5 Re6 Rg1 h1Q Qh5 Qh3 Rh1 Qg3 Qh8+ Ke7 Rh3 Nf6 Rh2 Nh7 Rh1 Qa2 Na8 Qf4 Rh3 Qg5 Rh2 Nhf3 Rh6 Nh4 Nd8 Kd6 f6 Qb3 f7 Qc4+ Bdc6 Rg6 Ndb7+ Ke6 Bd5+ Kf5 f8B Re6 Bd6 Qc5 Ba2 Qd5 Bb8 Ke4 Bcd7 Qb3 Bb1 Qa2 Bf7 Qad5 Bde8 Qc4+ Nc7 Nhf3 Rd1+ Rc2 Qf6 Rc6 Qh8 Nh4 Be6 Rd6 Qf7 Ra6 B6d7 Re6 Bc6+ Qcd5 Ba2 Rb2 Na8 Rbf2 Rb1 Kd3 Rd1+ Kc2 Rd3 Qb3 Be4 Qc3+ Bc4 Qb3 Bcd5 Kb1 Ba7 Qa2 Bb8 Qc4+
B4NQn/1b6/2K5/1Q1p1P1r/pR1BB1N1/b1R1b3/1B1rR1bP/b1bB2k1 w - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 hxg4 d4 f5 dxc5 f4 Bd2 Qc7 Bc1 Qb6 f3 e5 Qd4 Qe6 Qd1 Nc6 Qd4 Nce7 Qd1 Nf5 exf5 e4 Qe2 e3 Qd1 Qe4 fxe4 Bb7 Nh3 Ba6 Ng1 Bc8 Ke2 Ke7 Kd3 Kf6 Kd4 Kg5 Kd5 Kh4 c4 a5 b4 g5 e5 e2 e6 e1B b6 a4 b7 g3 b8Q d6 e7 g2 e8R g4 c6 g3 b5 f3 c7 f2 b6 Rh6 b7 Be7 c5 Re6 c6 Rg6 Qe2 Bf8 Nc3 Ra6 Qb5 Rh6 Ne4 Rh7 Nf6 Bg7 Nd7 Be5 Ra3 Rf7 Rc3 Nh6 Nf3+ Kh3 Nf8 Rh7 Bb2 Nf7 Be2 g1B Bd1 Kg2 Re6 Bf6 Ne5 f1B Ng4 Bc5 Re2+ Bef2 Qa8 Rh5 b8B Ba3 Ba7 Nh8 Bd4 Bb7 c8B Bg5 Bd7 Bc1 Qd8 Ra8 Qg5 Rd8 Qg8 Bc8 c7 Bb7+ Bc6 Rd7 Re4 Bfe3 c8B Rd8 Bg7 Rd7 Rb4 Rd8 Bd4 Rd7 Nf6 Kf2 Rg1 g2 Rh1 Rd8 Bd7 g1B Ng4+ Kg2 Bc8 Bgf2 Be6 Bg3 Bd7 Be5 Be8 Be2 Re1 Bf1 Re2+ Kg1 Bd7 Bc8 Ba8 Bb7+ Bc6 Bg2+ Kc4 Rb8 Be4 d5+ Kc5 Bg7 Kd6 Rc8 Rb3 Rc2 Rc3 Rd2 Rc5 Bh1 Be5 Ng6 Bbc3 Ba6 Kc6 Bg2 Bf6 Nh8 Bce5 Bd4 Rc2 Ba1 Bb2 Bh6 Bfd4+ Be3 Rc3 Bb7+
2k4b/bN4bp/1p1b4/R1BR3K/3NB2P/1RQNRq2/1qqQ2P1/2Rb2r1 w - - 0 1 illegal: No possible last move, all moves rejected
7Q/B7/kb4Q1/1p1N1Rb1/1QNQr1r1/pPQ1Pnq1/4pn1R/K2BRb2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 Rh7 gxh5 Rh8 a5 Qd6 Nf3 e5 Ng1 Qb6 axb6 e4 Ra5 e3 Ra4 Ne7 Ra1 Ng8 dxe3 f5 Ra3 f4 Kd2 f3 Ra1 fxe2 Kc2 Kd8 f4 a5 h4 g5 b7 c5 f5 Kc7 f6 Kb6 f7 c4 h6 c3 h5 a4 b3 g4 h7 a3 h6 g3 d6 g2 d7 Bc5 d8R Be6 f8Q Nc6 b8Q+ Ka6 Nd2 Bd4 Kb1 Ba7 Qg3 Bd7 Qb4 Ne5 Nc4 Bc8 Rh2 Ng6 Rd5 Bh3 Rf5 Rc8 Qd4 Re8 Bb2 Nh4 Qg6+ Nf6 Ka2 c2 Re1 c1B Ka1 Rhf8 h8Q Bb6 h7 Ng4 Qdc3 Re7 Qhd4 Re4 h8Q Bd2 Na5 Nf2 Nc4 Bg4 Nh3 g1Q Bg2 Nf3 Nf4 Bh3 Bh1 Qg3 Nd5 Bf1 Bg2 Rfe8 Bh1 Rg4 Bg2 Nh4 Be4 Nf3 Bc2 Ree4 Bd1 Qg1 Qcd3 Bc1 Qdf6 Qg3 Bd4 Bb2+ Kb1 Ba1 Bc5 Be5 Qdc3 Bf4 Qfd4 Bh6 Ka1 Bg5 Nf6 Bc7 Ba7 Ba5 Nd5+ Bb6
2Q5/bRp1kN1q/3R3r/r1nP1Qp1/2QPp1qR/4n3/KBRb2B1/4RN2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 f5 e4 Na6 exf5 Nb8 g4 hxg4 b3 a5 b6 a4 Ba6 a3 Be2 Bd7 Bf1 Ba4 bxa4 Qc8 Qe2 Qd7 Qd1 Qd8 f4 g5 h4 e5 d4 a2 Kd2 e4 Kc2 g3 Kb3 g2 h5 Ba3 a5 Bb4 h6 Be1 b7 Qf6 a6 Qg6 a7 Qg7 h7 Qe7 f6 Nh6 f7+ Kd8 f8Q+ Kd7 f5 Ng4 f6 Bb4 f7 Qc5 Nd2 Bc3 Qe2 Ba5 Rh2 Bb4 Ngf3 g1Q Qc8+ Kd6 Bg2 Bc3 Nf1 Qa5 Ne5 Bb4 Bb2 Qb6 Re1 a1B Ka2 Nd7 b8R Nc5 Rb7 Ke7 Qc4 Qh6 f8R Qh4 Nf7 Ne3 Qf5 Qh1 Rfb8 Qg4 Rd8 Ba5 Rd6 Bb6 Ba3 Bc3 Bb2 Bd2 Rh4 Rag8 a8Q Ba7 Qac8 Rg6 Rh2 Rh6 Rh4 Rg8 h8R Qhh3 Ra6 Rgg6 Rd8 Rb6 Rd6 Rb5 Ra3 Qh2 Rc3 Ra5+ Qa4 Qe5 Rc4 Qg7 Rc2 Rb5 Qb4 Qh7 Qc4 Ra5+
R1R3Q1/6Pb/bn2R3/NQ2r1p1/1PN1r3/1K1BppR1/rQ4q1/R2Bb2k w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 Bh6 d4 Bf8 dxc5 d4 g4 h6 g6 Bf5 g5 Nc6 g7 Bc8 g6 Nb4 Bg5 Nd5 exd5 hxg5 Kd2 Kd7 b4 f5 c4 a5 Kc2 e5 h4 e4 c6+ Kd6 h5 Ke5 c5 Kf4 b6 Kg3 d6 d3+ Kb3 d2 h6 f4 d7 e3 c7 Qe7 d8R Kf2 c6 Qc5 h7 Qe7 b7 Qf6 b8Q Ba6 c8R Ne7 g8Q Nd5 c7 Qc6 g7 Nb6 Qc2 Qg2 Nf3 Bd6 Ne5 f3 Bd3 Kg3 Re8 d1B Rg1 Kh2 Nc4 Bg3 Nba3 Be1 Re6 Be2 Qb2 a4+ Kc2 Ra7 Na5 Ra8 N3c4 a3 Kb3 a2 Bc2 Bd3 Bd1 Bb1 Qb7 Ra7 Ra8 Bd3 c8B Bb1 Qgf7 Re8 h8R+ Bh7 Qg8 Re7 Qd7 Re8 Qb5 Rae7 Rd6 Re5 Bf5 R8e7 Bd3 Re4 Re6 Re5 Rb1 a1R Rc8 Ra2 Ra1 Qf2 Rg3 Kh1 Qf7 Qe2 Rhf8 Qg2 Qg8 Rd7 Ra8 Rd4 Rfc8 Rde4
q2b3q/1RN5/1nbBR2B/1N4B1/k3pB1Q/3PpQpB/1r2P3/K3bRn1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 h5 a4 b5 axb5 f5 g4 a4 gxh5 Qd7 Qc2 Ra5 bxa5 Qd8 Qe4 fxe4 Kd1 Kd7 Kc2 e5 Kb2 c5 h4 g5 f4 g4 b6 c4 b7 g3 f5 Nc6 b8R Nh6 f6 Nb4 d3 Kd6 a6 Kc5 a7 Qe7 a8Q Qd7 f7 Qd8 d6 Bg4 d7 Qb6 d8B Kb5 Bdg5 Bf5 Nh3 Qb7 Bcf4 Ng4 h6 e3 h7 Bd7 h5 Nf2 h6 Be7 f8B Bd8 Bd6 Bc6 Rg1 Rg8 h8Q Nd5 h7 c3+ Ka2 c2 Nc3+ Kb6 Rh1 c1B Nb5 a3 Bg2 Bb2 Raf1 Bc3 Bh6 Rg6 Ng5 Be1 Ka1 a2 Ne6 Nh3 Nec7 Ng1 Bh3 Rg4 Bfg5 Rb4 Qf6 Rb3 h8B Rb2 Qf3 e4 Bhe5 Bb4 Bef4 Be1 Na7 Ka5 Nab5+ Qa7 Rb7 Nb6 Qc8 Ka4 Qcg4 Qa8 Qh4 Bd2 Rc1 Ba5 Rc5 Bc3 Re5 Be1 Re6 Rb3 Qfh5 Nf3 Rf1 Ng1 Q5g4 Ra3 Kb2 a1Q+ Kc2 Rb3 Qf3 Qh8 Kc1 Ra3 Kb1 Rb3+ Ka2 Rb2+ Ka1 Bd2 Qfg4 Bb4 Qf3 Be1
2K1kN2/Q7/2N1P1P1/3p2Qp/2qQ1Rp1/RQ5B/B1R1qbrr/1b1rn2Q w - - 0 1 legal: proof: g4 e5 h4 b5 d4 g5 a4 c5 dxc5 f5 axb5 Nc6 Be3 Nd4 gxf5 Ne6 Bd4 exd4 Bg2 g4 Bf1 Ng5 hxg5 Qf6 Na3 Qe7 Nb1 Qd8 Kd2 a5 Kd3 h5 Ke4 a4 Kd5 d6 Kc6 a3 e4 a2 f4 d3 c4 d2 b4 Nh6 e5 Bd7+ Kb7 Ra3 f6 Rd3 g6 Be6 b6 Bg7 c6 Rh7 f7+ Kf8 c7 Rd4 c8R Bf5 c5 Rh8 c6 Rd3 b5 Be4 f5 Rg8 Nc3 Rh3 Nd5 Bf3 c7 Bg2 Nf3 Rh2 Ng5 Bh8 Nh7+ Kg7 Nf8 Bh3 Ne7 Rg2 Nc6 Re2 Qa4 d1R Qd4 Rf2 Rh2 Rf4 Rf2 Re4 Rf4 Bg2 Kb8 Qd7 b7 Rd2 b6 Bh1 Bh3 Rb2 Rc1 a1Q Rc2 Qe7 Re8 Rb3 c8B Rb2 Be6 Re2 Kc8 Qc1 b8Q Rh2 b7 Be4 Qba7 Qf1 b8Q Qc4 Qb3 Bd3 Rc1 Rbg2 Rd8 Bb1 Rc2 Qh4 Bd5 Qe1 e6+ Qe5 Qg1 Kf6 Qh1 Qee2 Rd7 Kg5 f6 Nf5 Qd4 Nh4 Ra7 Nf3 Ra3 Bg7 Qb7 Ne1 Qba7 Qc3 Ba2 Qcc4 Qa4 Bh8 Qb3 Rg7 Nh7+ Kh6 f8Q d5 Qg8 Ra7 f7 Be5 Qd8 Kg7 Nf8 Ra6 Qdc3 Bd4 Qg5 Rb6 Qa5 Bf2 Qa7 Rb5 Qba4 Rb3 Qb4 Rc3 Qb3 Rd3 Nd7 Qe3 Qf6+ Kh6 Qfd4 Qe2 f8Q+ Kg5 Qe8 Rd1 Qd8+ Kh6 Qd2 Kg7 Qg5 Kg8 Qdd3 Kg7 Qdd4+ Kg8 Nf6+ Kf8 Nd7+ Ke8 Nf8 Qc5 Rf3 Qc3 Rf4 Qcc4
1b5R/3N1K2/1nP2QN1/1B2qb2/B2q1pk1/b1BP2p1/rQ1Rp2Q/1QQ4r w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 g4 d5 gxh5 e5 a4 e4 axb5 Nd7 e3 Ne5 fxe5 d4 Ba3 dxe3 Bb2 Ba6 Bc1 Bc8 Ke2 Kd7 c4 Ke6 h4 Kf5 h6 g5 c6 a5 b6 a4 h7 f6 c5 a3 h5 g4 c7 g3 h6 a2 e6 Ra3 b7 Ra6 b8Q Bg7 e7 Qd5 e8B Qe5 Na3 Rd6 Bb2 Rd3 Ba4 Rd6 Qb1 Re6 Nc4 Qd5 Nf3 Qc6 Bc3 Re7 Nh4+ Kg4 Ng6 f5 Q8b2 f4 Nb6 Qd5 Nd7 Qd4 Rh3 Bb7 c8Q Nf6 Qc7 Ra8 h8Q Nd5 h7 Bf8 Qf6 Nb6 h8Q Rh7 Rh5 Ra6 Rd5 Rh1 Qh2 Bc8 Rh5 Na8 Rh8 Ra5 c6 Ra7 Q2c1 Ba3 Qce5 Nb6 Qeb5 Ra5 Q5b2 Ra8 Kd1 e2+ Kc2 e1B Kb3 e3 Bfb5 e2 d3 Bf2 Qcc2 Qe5 Qcc1 Nd5 Kc4 Ba7 Bb4 Bb8 Bc3 Qc7 Kd4 Nb6 Ke4 Nc4 Kd5 Nb6+ Ke6 Qe5+ Kf7 Qd4 Ndf8 Bf5 Nd7 Be7 Bb3 Rd1 Qa3 Bc7 Qd2 Ra5 Qbc2 Ra6 Bb4 Rh1 Rd1 a1Q Qb1 Qe5 Qac1 Qa4 Bc3 Qad4 Qdb2 Ra2 Rd2 Ba3 B3a4 Bb8
b2r2k1/2B2q1n/p1R2R2/2KQp3/3QP3/bNRqRP2/2Q1Bp2/2Nnn2R w - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 c4 gxh4 cxd5 Qd6 f3 Qb4 Kf2 f5 Ke3 a6 Kf2 f4 Ke1 Qe4 fxe4 f3 Ra2 Kd7 Kf2 Ke8 Ke3 f2 Ra1 Ra7 Kd3 Rb7 Ke3 Rb6 Kd3 Rf6 Ke3 Rf3+ exf3 Bh3 Ke2 Bc8 Kd3 Kf7 Kd4 h5 g4 e6 b4 h3 d6 h2 d7 c6 d8R h4 g5 h3 b6 Kg7 b7 Nf6 b5 Bd6 g6 Be5+ Kc5 Ng8 d4 Bf6 d5 Ne7 d6 Nd5 b6 Bb2 d7 Nc3 Qc2 Nd1 Nd2 e5 Ne2 Rf8 Nb3 Kg8 g7 Re8 Be3 Rf8 Kd6 c5 Rc1 c4 Kc5 c3 Bg5 Re8 Be7 Rf8 Bd6 Re8 Bc7 Rf8 Rg1 h1Q Re8 h2 d8Q Qg2 Rh1 Qg6 Qd4 Qf7 Re6 Rd8 Rg6 Be6 Rf6 Bd5 Rc6 Ne3 Re1 Nd1 Rf6 Bc6 Nec1 Bd5 Be2 Nd7+ Kd6 Bc6 b8R Nf8+ Kc5 Ba8 b7 Nh7 Rc8 Qh5 b8R Qf7 Rhf1 h1Q Rbb6 Qh6 Rbc6 Qe3 Rh1 Qd3 Bf1 Bb7 Re3 Ba8 Qb1 c2 Be2 Qd2 Nd3 c1N Qc2 Na2 Ndc1 Nb4 Rb8 Qd3 Rbb6 Nd5 Rb4 Nf4 Rc4 Ng2 Rc3 Ne1 Bb8 Qb7 Rb6 Rd6 Rg6 Kf7 g8Q+ Ke7 Qe6+ Kf8 Rc6 Qf7 Rf6 Kg8 Bc7 Rd8 Qed5 Ba3+
B2b4/1N1N1pQn/p1r2Q2/1NK1Qqb1/P1RBr3/1b2N1p1/1P2k1N1/2q3R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 fxe5 Be7 c4 Na6 cxb5 c4 b6 Nc5 dxc5 Bd6 c6 Bf8 c7 Ba6 c8R Bxc8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 h4 Kg4 a4 g5 e4+ Kg3 h6 Kf2 b7 d5 b8N a6 h5 g4 e6 c3 h7 g3 h6 c2 e7 Ra7 e8N Ra8 e5 Bb4 e6 Qa5 e7 Qd8 Rh4 Be6 Qg4 Bd7 Qg7 Ke1 Bg2 Kf2 Be3+ Ke1 Nf6 c1B e8N Be6 Nh3 Bc3+ Kc5 d4 Nd6 d3 Ng4 d2 Bd4 d1Q Nf4 Qd2 Nb7 Qd7 Na3 Ba5 Ne3 Bd8 Nb5 Bb3 Bc6 Kf2 Nfg2 Nf6 Bd5 Rg8 h8Q Re8 h7 Qf5 Nd7 Re4 Qe8 Kf3 h8Q Ke2 Qe5 Nh7 Qgf6 Qe1 Qhg7 Rc8+ Bc6 Bd2 Rc1 Rc7 Rh1 Qg1 Rc4 Qc1 Rg1 Rc8 Nc2 Bg5 Nce3 Ra8 Na5 Rb8 Ba8 Rb6 Nb7 Rc6+
4n1k1/B5b1/1NnB2rr/1PpN1R2/4NrbR/Kp1p4/1Pb2NQ1/NR2Q3 w - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 f5 exf5 d6 a4 b4 Rh5 Qd7 Rh1 Qb5 axb5 e6 c4 d5 cxd5 Bg7 d6 Bf8 d4 Nh6 d5 Bg7 d7+ Kf7 d6 Bf8 Bc4 Ng8 Bd5 exd5 Kd2 c5 Kc2 h5 Kb3 a5 d8B d4 g4 d3 f4 h4 d7 h3 g6+ Kg7 g5 h2 Qe1 Nh6 f6+ Kg8 g7 Rh7 f5 Nf7 Nc3 Nh8 Bf4 Ra6 Rb1 Rh5 f7+ Kh7 g8N Ra8 g6+ Kg7 Nf6 Bb7 Nfe4 Rh6 Nd5 Ra6 Bb6 Ra8 d8N Ra6 Nc6 Bc8 Nd4 Nc6 Nc2 a4+ Ka2 a3 Na1 Ra4 Bd6 Bd7 Kb3 a2 Nh3 Bc8 Ba7 Ra6 Nc2 a1R Nhf2 R1a4 Na1 Bd7 Rg1 h1B Rg4 Bf3 Rh4 Be7 f8N Nf7 f6+ Kg8 g7 Bdg4 Nd7 Bf8 N7b6 Be2 Bc7 Nd6 Bcb8 Ne8 Bd6 Bef3 f7+ Kh7 g8R Bg7 f8Q Be2 Qf3 Bd1+ Kc4 Bc2 Rf8 R6a5 Rf5 Kg8 Bab8 Ra7 Qfh1 Rf7 Qg2 Ra8 Ba7 Rd8 Be7 Rdd6 Bf8 Rdg6 Bd6 Rf8 Rc1 Bb1 Kb3 Bc2+ Ka2 b3+ Ka3 Rff6 Rb1 Rf7 Rfh5 Rf3 Rf5 Rf4
NNn1bQN1/5pRB/N2K1b1p/2BQ4/4Rr2/p6P/r4bP1/N2rQn1k w - - 0 1 legal: proof: e4 c5 f4 d5 a4 dxe4 b4 b5 bxc5 a5 axb5 g5 fxg5 Qd7 Qg4 Qc6 Qd1 Qa6 bxa6 Bg7 Bb2 Bh6 Bc1 Bf8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 c4+ Kd4 g6 e6 c6 e3 g7 a4 c7 e2 a7 e1R c5 a3 c6 Ne7 g8N Bb7 c8Q Re3 c7 Rb3 Nh3 Nd7 Qd8 Rb8 a8N Bf3 c8Q R8b4 Nf2 Ra4 Ne4 Rb6 Qe1 Be2 Nc5 Nf5 Na6 Bb5 Bd3 Bg7 Qf8 Bc6 Qb7 Ne3 Bg6 Rab4 d3 Bf6 Nd2 Nf1 Nb3+ Kd5+ d4 e5+ Kf5 e4 Be3 h6 Bh7 Kc4 d5 Kd3 Bc5 e3 d6 e2 h3 R6b5 Rc1 Nb6 d7 Nc8 d8N Be8 Nc6 Ra4 Na1 Rb2 Ncb8 Ra2 Rg1 Rd4 Qd5 Ke3 Qb4 Kf2 Rc3 e1B Rg3 Rc2 Rg7 Ra2 Be7 Rg4 Bc5+ Kg3 Qbd2 Kh2 Qe2 Bf2 Qe1 Bd8 Ke5 Rf4 Qe2 Ng3 Rd1 Nf1 Rd4 Kh1 Re4 Bg5 Qe1 Be7 Nf6 Rg8 Rg5 Rg6 Ng8 Rd6 Rg7 Bg5 Qb3 Rd1 Qd5 Na7 Kd6 Be7+ Ke5 Bf6+ Kd6 Nc8+
n4R2/B1Bkn1N1/3N1p2/q2p1P2/1N1Q1P2/1RRrQ2n/1Rp1Rnr1/4K2b w - - 0 1 legal: proof: g4 b5 a4 h5 gxh5 e6 axb5 Bb4 f4 Ba3 f5 Bd6 e3 Bf4 exf4 d5 c4 Bd7 cxd5 Kf8 d6 Bc8 d7 Ke7 d4 Nh6 d5 Kf8 d6 Ng8 Bg2 Ba6 Be4 Bc8 Bd5 exd5 b4 c5 h4 a5 h6 g5 h7 c4 b6 f6 b5 g4 b7 a4 b6 a3 h5 c3 h6 a2 Nd2 g3 Ngf3 g2 Nc4 g1N Nfe5 c2 Rh3 Qe8 d8N Qb5 d7 Ke7 Nd6 Nc6 b8R Qb1 b7 Qb6 Ne6 Na5 Be3 Nc4 Qd4 Ra3 Nd3 Qa5+ Nb4 Rd3 d8B+ Kd7 Bc7 Ne7 Ng7 Rg8 h8R Nb6 h7 Na8 Rh2 Nh3 Re2 Qb5 Rb1 a1N Rb3 Qa5 Rc3 Nb3 Bg1 Nd2 Bf2 Rd8 Rf8 Ne4 h8Q Re8 Bg1 Nef2 Qh4 Rd8 Qg3 Re8 Rf7 Rh8 Rf8 Rh6 Qf3 Rg6 Qfe3 Nb6 Ra8 Rg2 b8R Ba6 Rb3 Bc4 Ra6 Na8 Rc6 Rd2 Rb2 Bd3 Rc3 Be4 Nc6 Qa4 R8b3 Rd3 Nb4 Qa5 Qc1 Rg5 Qe5 Nh1 Ba7 N1f2 Qd4 Bh1 Qce3 Rg2
2q3r1/1N2PqQR/Q2p1RrB/rnp1Q3/3QbQp1/3R3q/5P2/1k1BK2N w - - 0 1 legal: proof: e4 e5 b4 h5 d4 b5 c4 f5 cxb5 Kf7 g4 Ke7 gxh5 Ke8 a4 Bc5 a5 Bb6 axb6 Nc6 Na3 fxe4 Nb1 e3 Qa4 e4 Qd1 Ne5 dxe5 Kf7 Nf3 Kf8 Ng1 Ke8 h4 Kf7 h6 Ke6 h5 Kf5 b7 a5 b8R g5 b6 c5 h7 e2 b5 a4 e6 a3 e7 a2 h6 g4 b7 Ra5 b6 Qe8 Qa4 Qg6 Nd2 Qc6 Nb3 Ra6 Na5 Nf6 Qc4 Rf8 h8Q Ne8 h7 Rg8 Qhd4 Nc7 h8Q Nb5 Rh7 Qd5 Bh6 Qf7 Rc1 a1R Rd1 Ra2 Ra8 Ra4 b8Q Bb7 Qg3 Bd5 b7 Rag6 b8Q d6 Nb7 Ra5 Rd3 Bc6 Qa7 Bd5 Qhg7 Bc6 Kd2 e1Q+ Kc2 e3 Rf8 e2 Qa6 Qa1 Kd2 Qa3 Ke1 Be4 Bg2 Qb3 Bf3 Qa3 Qb4 Qb3 Qa4 Qe6 Qaa1 Qc8 Qf4+ Ke6 Kd2 Qf6 Qdc3 Qh4 Qcb2 Qh3 Qbc3 Nd4 Rf6+ Kd5 Re3 Nb5 Qce5+ Kc4 Rd3 Kb4 Qac3+ Ka4 Qb2 Nc3 Qa1+ Kb3 Qa4+ Kb2 Qad4 Bf5 Bd5 Kb1 Bb3 Nb5 Bd1 Qb8 Nf3 Be4 Nh2 Qc8 Nf1 Qh5 Ng3 Qhf5 Nh1 Qfe6 Ke3 e1Q+ Be2 Qf1 Kd2 Qd5 Bd1 Qh3 Ke1 Qf7
B1B4n/K3QnPR/n1QB2Q1/np1nN3/pN2B2r/3B4/4RPbp/kq6 w - - 0 1 legal: proof: e4 f5 exf5 c5 h4 g5 hxg5 b5 a4 a6 d4 cxd4 a5 Qc7 Nh3 Qb6 Ng1 Qd8 b3 Bg7 b4 Be5 Be3 Bc7 Bc1 Bb6 axb6 a5 b7 a4 Be2 Ra5 bxa5 Kf8 Bf1 Ke8 Ke2 Kf7 Kd3 e5 c4 d5 g4 h5 g6+ Kf6 g7 h4 g5+ Ke7 g6 Kd6 a6 Kc5 f6 Kb4 f7 h3 f8Q+ Ne7 g8B Rh4 a7 Na6 b8Q Bb7 Qg4 Kb3 g7 Ng6 a8B Nh8 Bf4 Kb2 c5 Bc6 Qbd6 e4+ Kd2 d3 Ke3 d2 Kd4 d1N Na3 e3 Nc2 e2 Qfe7 e1N Nf3 Qc7 Ne5 Ne3 Qgg6 Nc4 Nb4 Na5 Bh7 Nd3 Re1 Qd8 Re2+ Ka1 Rh2 Qf8 Bg2 Qf5 Be4 Bb7 Qh5 Qg6 c6 Qg1 c7 Qb1 c8B Bc6 Ng4 Ne5 Qhg6 Nef7 Qdf6 Bb7 Bd6 Bc6 Ne5 Bb7 Rg2 h2 Rg5 Nc7 Kc5 d4 Kb6 d3 Rg3 d2 Ka7 d1N Rh3 Ne3 Qfe6 Bc6 Qd5 Bb7 Qc6 Ned5 Bd3 Nb6 Qf3 Rd4 Qgg3 Rc4 Bhf5 Rf4 Qg6 Na6 Rh7 Rh4 Qh1 Bc6 Qc1 Bg2 Bfe4 Nd5 Qc5 Bf1 Qc6 Bg2
1R2BNQ1/4PR2/prp1KB2/N1r2q2/5k1p/1N1P1B1n/2Nq1n1N/n1Q4r w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kb3 Kf7 Kc4 Kf6 e4 h5 b4 h4 f5 Kg5 d6 a6 Kd5 g2 f6 c6+ Ke6 Nd7 d3+ Kg6 e5 Ne7 f7 Rg8 f8N+ Kg7 b6 Ng6 b5 Nf6 b7 Qb6 b8N Qa7 d7 Qc7 d8N Qa5 b6 Qc3 g5 Ne8 b7 Qe1 Nbd7 Qe3 b8Q Qa7 Nc5 Rh8 Nb3 Rg8 Bb2 Qe3 Be2 f1Q Nb7 f2 Qc1 Nd6 Bf3 Qd2 Na3 Ne4 Rb1 Rh8 N7a5 Rh5 Qc8 Rb8 Nc2 Rb6 Rh3 Ne7 g6 Kh6 g7 Kg5 g8B Nd5 Bf7 Ne3 Be8 Kf4 Rg3 Rf5 Rg7 Rg5 Rf7+ Rf5 Ne1 Nc2 Qa8 Na1 Nc2 Qe1 Qd8 f1R Qc8 Qg3 Qd8 Qg4 Qg5+ Kg3 Qg8 Nf2 Bd1 Qg7 Nbd4 Ng4 Ngf3 g1N Nh2 Qg6+ Ke7 Nh3 e6 Rbb5 Bf3 Rh1 Kd7 Qgg5 e7 Rfc5 Ke6 Ngf2 Bc3 Rb8 Rb6 Rb7 Ndb3 Rb8 Bf6 Kf4 Rb7 Qg6 Rc7 Qh5 Rc8 Rb6 Rb8 Qf5+
B2K4/1pq2p1b/NB2R1n1/q1P1pQ1Q/b2NP1N1/R7/nB1k1N2/N1nn4 w - - 0 1 illegal: No proof kernel
qBN3NK/1Rb4R/1bn5/bR2BQ2/2ppB2P/1p1bq3/BP2QB2/k2q4 w - - 0 1 legal: proof: c4 b5 a4 h5 g4 hxg4 e4 f5 exf5 c5 d4 g5 Qe2 a5 Qc2 b4 Qd1 Na6 Bh3 Nc7 Bf1 Nb5 cxb5 c4 Qd3 Rh6 Qd1 Rd6 b6 Rd5 Bd2 Rb8 Bc1 Rb5 axb5 Rb7 Qa4 Rc7 Qd1 Rc5 dxc5 Bh6 Nd2 Bg7 Nb1 Bf8 Kd2 Kf7 Ke3 Kf6 Kd4 d5 f4 b3 b7 e6 b8R a4 c6 a3 c7 a2 b6 g3 b7 g2 Nf3 g1Q+ Be3 g4 Ng5 g3 Ne4+ Ke7 Ke5 g2 f6+ Kf7 f5 d4 Nbc3 Nh6 Nd5 Qd7 Nb6 Qe8 Qe2 Bd7 c8B Ng8 Bf2 Ne7 Re1 a1Q h3 Kg8 f7+ Kg7 Nf6 Qa8 Ng8 Bc6 f6+ Kg6 Bd7 Be4 Bc6 Bd3 Be4+ Kg5 Rh2 Qh1 Ra1 g1B Ra5 Qf3 Rb5 Qg4 Kd6+ Kf4 Nc8 e5 Rh1 Qf3 Ke6 Bh2 Bg2 Qe3 Bf5 Qa1 Bge4 Qd1 Bg6 Qd8 Bh7 Nc6 Bhf5 Bb4 f8B Bc5 Kf7 Qe8+ Kg7 Bb6 f7 Qd8 Kh8 Qd5 Bg2 e4 Bg7 Qd8 Bf6 Qf8 Bf3 Qa3 f8Q Qa8 h4 Bg3 Rg1 Bh2 Rg7 Bg3 Be6 Bh2 Bd5 Kf5 Qc5 Bhc7 Rh7 Kf4 Bh5 Kf5 Bg6+ Kf4 Qf1 Kf3 Qg2+ Ke2 Be5 Kd2 Qf3 Kc2 Qe2+ Kb1 Qf8 Qg5 Qf5 e3 Be4 Ka1 Qd2 Bf1 Qe2 Qg3 Bb1 Qh3 Ba2 Qg3 Qec2 Bd3 Qe2 Qg5 Qf6 Qgg1 Be4 Qge1 Qf5 Qed2 Qe1 e2 Qf1 e1B Qe2 Q2c1 Beg3 Qa7 Be5 Bd2 Ra8 Qb8 Ra7 Qa8 b8B Bda5 Rb7 Qe3
3qk1r1/6BR/1Rn1B2r/Q4Q1K/1Q1BN3/1P1Qp3/p1nQppNP/1r1b4 w - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 gxh5 c5 dxc5 e5 a4 e4 axb5 Bd6 e3 Be5 fxe5 d4 Ra3 dxe3 Ra4 Bh3 Ra1 Bc8 Ke2 f5 c4 a5 c6 g5 c7 a4 h6 g4 b6 a3 c5 f4 c6 g3 e6 g2 b7 Nd7 b8Q Rh7 e7 Rh8 h7 Ra4 Nd2 Ra5 Qb4 Ndf6 Ngf3 g1R Bh3 Bd7 c8Q Rc5 c7 Be6 Ne1 Nd5 Qa8 Rg7 c8Q Ra5 Ng2 Rc5 Qaa5 Bd7 Be6 Rg4 b3 Rc2 Rf1 Rc7 Bb2 Rg3 Bd4 Rc2 Qcc4 Ra2 Qd3 Rb2 Rf3 Rg7 Rh3 Rb1 Ra2 Bc6 Rc2 Bd7 Rc6 a2 Rb6 Rg6 Qf1 Rh6 Qf3 Bc8 Qg4 Ba6 Qf5 Bb7 Nf3 Ba8 Ng5 Bb7 Qbd2 Nb4 Rh4 Nc2 Rh5 Nf6 Qab4 Rg8 h8B Ba6 Bg7 Nd7 Rh3 Nb8 Qba5 Rf6 Rh7 Rh6 Bde5 Nc6 Ba1 Bc4 Bad4 Bd5 Ne1 f3+ Kf1 f2 Kg2 Qc8 Kg3 Qd8 Kg4 e2 Qdf3 N2b4 Ng2 Bc4 Qfc3 e3 Qcc2 Ba6 Ne4 Bd3 Qc4 Bc2 Qcd3 Rg6+ Kh5 Bd1 Qfb5 Nc2 Qbb4 Ne5 Bd5 Kd7 e8Q+ Kc7 Qef8 Kd7 Bc4 Nc6 Qff5+ Ke8 Be6 Rh6+
1bqn1Q2/2kp1RP1/1pp3n1/1R1B2N1/Q2Qrp2/1P1Q1K2/3r2rB/2Q1N1B1 w - - 0 1 legal: proof: f4 g5 a4 e5 h4 exf4 hxg5 b6 a5 Qf6 a6 Qc6 Na3 Qe4 Nb1 Qb7 axb7 a5 c4 Ra7 e4 Nf6 d4 Ng8 c5 Nc6 b8B Bb7 Nh3 Ra8 Ng1 Na7 c6 Nb5 Ba7 Rd8 Bb8 Na7 cxb7 Ke7 Bd3 Re8 Ba6 Kd8 Bf1 Re5 dxe5 Ke8 Ke2 Kd8 g4 h5 g6 f5 g5 h4 b3 h3 g7 h2 g6 c6 e6 a4 e7+ Ke8 e5 a3 Nd2 a2 Bg2 Rh3 Ngf3 Nb5 Ne4 Rh5 Rf1 h1R Qd4 R5h3 Neg5 Na3 Be3 R3h2 Ne1 Rg1 Kf3 Nh6 g8Q Nc4 g7 Nf7 Qh7 Nd8 Bh1 Rg4 Bg1 Rhg2 Bd6 Rd2 b8Q Rgg2 Rc1 a1Q Qa8 Qa3 Qa4 Qb4 Rd1 Qb5 Rc1 Qa6 Qh6 Qc8 Rc3 Na3 Rc5 Nc4 Bc7 Nd6 Qd3 N6f7 Rb5 Nh8 Qhd6 Ng6 Qc5 Rb2 Qc1 Rbd2 Nh3 Kf7 e6+ Kf6 e8Q Bd6 e7 Ke6 Bb8 Bc7 Qf8 Be5 Bd4 Bc7 Ng5+ Kd6 Ba7 Bb8 e8Q+ Kc7 Bg1 Rh2 Qee3 Rhe2 Qf2 Re4 Kg2 f3+ Kg3 Rc4 Qfd4 f2 Bd5 Rcc2 Kf3 Rb2 Nc2 Ra2 Re1 Rb2 Re7 Ra2 Rf7 f1R+ Ke3 Re1+ Kf3 Re4 Ne1 Rg2 Q4e3 Rad2 Qf2 Kb7 Qfd4 Bf4 Bb8 Be5 Bd6 f4 Bc5 Bb8 Bh2 Qc7 Qe5 Qc8 Bcg1 Rd4 Qee3 Re4 Qed4 Kc7
b2R4/Q1Q3QP/rp1p2BQ/P4KR1/B1pN2pq/1B1q2QN/2r4n/k5b1 w - - 0 1 legal: proof: d4 a5 g4 d5 b4 Kd7 bxa5 h5 gxh5 c6 c4 Qe8 cxd5 Qd8 d6 Ke6 d7 Qc7 d8Q Qb6 f4 Bd7 e4 Kd6 d5 Qc5 f5 Qb6 e5+ Kc5 d6 Bc8 d7 Na6 Bg5 Nc7 Bd2 Ne6 fxe6 Kd5 Bb4+ Qd4 Nd2 Qb6 Bd6 exd6 Nb1+ Kc5 Kd2 Kb4 Kd3 g5 Ke4 f6 a4 c5 h4 g4 e7 Qb5 e8B b6 h6 Ra6 h7 Nh6 h5 Rg8 h8Q Rg7 e6 Qc4+ Qd4 Kb3 e7 Nf7 h6 Qb4 Nh3 Qc4 Nd2+ Kc2 Kf5 Rg6 Qc7 Ng5 Nf3 Qa2 Bc4 Rg7 Bg6 Bb7 e8B Ba8 d8Q Qb2 Qa7 Rc7 h7 Qa3 Qg1 Kb2 Nd4 Qg3 Bb3 Bh6 Qg7 Qh4 Qg3 Nf3 Qc8 Rc6 Qcc7 Be3 Rhe1 Bg1 Re5 Nh2 Qh6 Be3 Qcg7 Rc8 Qac7 Bg1 Ra2+ Kb1 Rae2 Ka1 Bb5 c4 Rc5 Rf8 Re8 Rf7 Rd8 Re7 Bbe8 Re2 Rb5 Ra7 a6 Rc2 Ke6 f5 a5 f4 Rg5 f3 Bea4 f2 Kf5 Rb7 a7 f1Q+ Ke6 Qd3 Kf6 Rb8 Ke6 Bh1 a8Q Rc8 Qa6 Ra8 Qab7 Ra6 Qa7 Ba8 Kf6 Qc3 Kf5 Qd3+
1N2R3/4prr1/2p5/3pqNBn/1prb1BN1/4Pk1P/q3N1NB/QR4QK w - - 0 1 legal: proof: d4 f5 b4 h5 g4 b5 gxf5 a5 bxa5 c6 c4 b4 d5 Ba6 d6 Bb5 cxb5 Na6 Bh3 Nc7 Bg4 hxg4 dxc7 Ra6 Qd5 Ra7 Qd1 Ra8 Kf1 Kf7 Kg2 Kf6 c8N Ke5 f4+ Ke4 a4 g5 f6 d5 a6 g3 h3 g4 a5 Rh7 a7 Qe8 f5 Qd7 a6 Rh4 f7 Rh5 f6 Qd6 b6 Qe5 b7 Rf5 b8B Rh5 Na3 Qg5 Nd6+ Ke5 Nac4+ Ke6 Bf4 Rh8 e3 Qg6 Ne2 Bh6 f8B Qg5 f7 Qf5 Ne5 Qg5 Qg1 Qf6 Nf5 Bg7 Bc7 Re8 a8Q Rh4 a7 Bh8 Bg7 Rf8 Bgh6 Qg5 Ra5 Nf6 Ra6 Qg7 Bhg5 Nh5 Rb6 Qf6 Rb8 Qg7 Re8 Qf6 Nf3 Qe5 Ne1 Bg7 Qb8 Bh8 a8N Bf6 Nb6 Bg7 Kf1 g2+ Kf2 Bh8 Nd7 g3+ Kf3 Rg4 Qa8 Bf6 Nb8 Bh8 Qf2 g1Q Ng2 Qga1 Rb1 Qa2 Qg1 Bg7 Nh6 Rh4 Ng4 Kf5 Qa3 Bf6 Qb2 Bg7 Qa1 Bh8 Ne1 Bg7 Kg2 Ke4 Kh1 Bf6 Ng2 Kf3 Nd7 Qd6 Nb8 Bd4 Ba5 Qe5 Bc7 Rg8 f8N Rg7 Ne6 Rf7 Nf2 Rg4 Ng7 Rh4 Nf5 Rg4 Bh6 Rh4 Bfg5 Rf4 Ng4 Re4 Ngf4 g2+ Kh2 Qa5 Bf6 Qa7 Nf2 Qa5 Qd1 g1R Qf1 Rg2+ Kh1 Qa2 Qg1 Rgg7 Ng2 Bc3 Ng4 Qd4 Bh2 Qe5 B6f4 Rc4 B6g5 Bd4
5nQ1/1nBp2B1/1P1N3K/2RQ1b2/n2RPppr/2BN1pBB/5n1r/1k2N3 w - - 0 1 illegal: No possible last move, all moves rejected
2Q1KRN1/3Q2Pk/R1N1pp2/n1R5/1r2p1pB/1qPb3r/RQ2p3/BR2n3 w - - 0 1 illegal: Other
nnrb3k/1q2b2B/1nq3K1/1BB2bQQ/1RrR1B1B/P3r1N1/P3R3/1q5N w - - 0 1 illegal: No possible last move, all moves rejected
r4R2/6bK/NnN1BQNR/b1Q3nB/kBbPB3/2r5/Pq4qn/q1r4B w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kf3 f5 Kf4 b5 g4 c5 d4 h5 e4 h4 d6 Kc6 d7 h3 g6 b3 e6 b4 g7 b2 g5 h2 g6 c4 e5 Kb5 e7 b3 Kg5 f4 e6 f3 Bd2 f2 Na3+ Ka4 Qf3 b1Q Bb4 b2 Nh3 c3 Nb5 c2 Nc7 c1B+ Nf4 Ra6 Bg2 Ra8 Na6 Qb6 e8Q f1R d8N+ Nd7 e7 Bd2 Nc6 Nh6 g8B Ng4 g7 Rh3 Qh5 Rc1 e8B Qc2 Bgf7 b1N g8B Bg7 Bh7 Nc3 Be6 Ne4+ Kg6 Qb1 Qf1 Rhc3 Qc5 Ng5+ Be4 Qb5 Bhg8 Nb6 Bgf7 Nf3 Kh7 Qe2 Ng6 Qb2 B6d5 Qg2 Bfe6 Be1 Qf2 Bb7 Rf1 h1Q+ Qh4 Ngh2 Qf6 Ng1 Rf4 Ngf3 Rh4 Bc8 Rh6 Bd7 Nce7 Bb5 Nc6 Bc4 Rb1 Qa1 Rb2 Qhf1 Rf2 Qfg1 Rf1 Qgb2 Rf2 Nd2 Bh1 Ndf3 Be4 Bd2 Nge5 Qg4 Bh5 Qg2 Ng6 R3c2 Ba3 Ba5 Bb4 Rc3 Qfe5 Nd2 Rf8 Ndf3 Qf6 Ng5+
1b3Qq1/2Q3n1/r2Q4/r1rBnNkP/K2B1q2/5nNQ/bP1Bb3/q1QRR3 w - - 0 1 illegal: No possible last move, all moves rejected
bbQR4/kn1Q4/P3KNr1/R1q1RBn1/3PNR2/2b1R1N1/1Bqr4/n2q3r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 Kb6 d4 g5 h4 c4 f4 b3 a4 g4 f6 g3 d6 c3 f5 g2 a5+ Ka7 f7 b5 f6 c2 h6 b2 h5 b4 h7 b3 d7 Na6 h6 Bb7 Rh4 Qb6 d8R Nc5 Ne2 g1R Qd3 Rg6 Nd2 b1Q Qf5 b2 Rh3 Qa2 Bg2 b1Q Bb2 c1N Ng3 N1b3 Be4 Qd1 Qd7 Qb5 Kf5 e5 a6 Bd6 f8R Bb8 f7 Nf6 Bc2 e4 Rfe8 e3 f8N e2 Nde4 e1B Re5 Rhg8 h8R Bc3 h7 Qab1 Ra4 Na1 Ra5 Qb4 Bd3 Qbc2 Rh4 R8g7 Rf4 Rf7 Rg8 Rfg7 h8Q Nh7 Rde8 Ng5 Nh7 Rf7+ Nhf6 Rh7 Rd5 Rh2 Rde5 Rd2 R8e6 Qb6 Rd8 Qc7 Qhe8 Bd5 Qc8 Nb7 Qed7 Qc4 Rb6 Qc5 Rb3 Qcc1 Bb1 Qcc2 Rba3 Bb4 Raf3 Bc3 Re3 Qa4 Nf2 Bc7 Rf8 Nd8 Bd3 Qac2 Be4 Nb7 Qce8 Rd8 Qc8 Bb8 Qb5 Rd7 Rd8 Rh7 Qbd7 Rh1 Bd3 Qc7 Be4 Nc5 Bd3 Ba8 Be4 Nb7 Bd3 Nf7 Ke6 Qc5 Bf5 Qh5 Nfe4 Qg4 Ra2 Qgd1 Ra5 Ng5+
1k2q3/NB1Prr1n/n4n2/r1bR3K/3B1q2/bQ1R1BQ1/1PB1NQ1B/1q1b4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Kg4 c5 e4 Kc7+ Kh5 f5 d4 h6 g4 c4 d6+ Kb7 g6 c3 g7 f3 d7 c2 e5 f4 e6 f2 e7 f3 e8B a4 d5 a3 b6 a2 g5 Qe7 d8Q Qe1 g6 Ra5 Qh4 Na6 Bg2 f1Q Ne2 f2 Bf3 Ba3 Nbc3 Rh7 Ba4 Kb8 Be3 c1B Bd4 Be3 b7 Bd7 Bb3 Ba4 Bc2 Bb3 Rc1 a1Q Nb5 Qb1 d6 Ba4 d7 Bb3 Bc3 Bec5 Rh3 Ba4 Qhd4 Bb3 Na7 Nf6+ Kh4 h5 g8B Rf7 g7 Re7 Bgd5 Nh7 Qf6 Ba4 Bd4 Bb3 Qd3 Ba4 Rd1 Bb3 Kg3 h4+ Kg4 Ba4 Rg3 h3 Kh5 h2 Qb3 h1N g8Q+ Kc7 Qgg5 Kb8 Nc1 Qc4 Ne2 f1R Rh3 Nf2 Qg3+ Bd6 Qff4 Ng4 Qfe3 Qc7 Qef2 Bdc5 Rd3 Qf4 Rh4 Nh6 Rg4 Ng8 Rg5 Nh6 Bc6 Ng4 Rd5 Rf7 Nc3 Qe8 Ne2 Re1 Nc1 Ree7 Ne2 Kc7 b8B+ Kd8 Qc4 Bb3 Bb7 Qd2 Qgh2 Qdc1 Bd1 Bc2 Bg3 Qf4 Qb3 Kc7 Qh3 Kb8 Bh2 Qa1 Qhg3 Qb1 Qb6 Bb3 Qb4 Bc4 Ba4 Bb3 Qb6 Bd1 Bc2 Bab4 Qb5 Ba3 Qb3 Ngf6+
1B4Rb/1B1q4/1rRr2R1/NR1B1bb1/1nrQr1P1/1R1P1kN1/Q7/3Kn1nr w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 Kd6 e4 Ke5 g6 a5 d6 f5 d7 c5 d3 h5 b6 c4 g7 c3 b5 h4 b7 c2 b6 f3 Qd2 f2+ Ke2 f4 Ra3 h3 Qd1 h2 Qe1 a4 Ra2 f3+ Kd2 Kf4 e5 a3 e6 Nf6 g8Q Nd5 e7 Na6 b8R Nab4 e8B Ne3 b7 Ra4 Bg2 f1R Qf2 Be7 Bf7 Rh6 Bd5 Bg5 Qg7 Qe7 d8R Rd6 Rg8 Qd7 Qe2 f2 Qd4+ Kg3 Ra1 a2 Na3 Re1 Nc4 f1R Na5 Rf7 Bb2 Rff1 Rc1 a1B Rg6 Rf2 Ra8 Rf7 b8R Rff6 Rb5 Rb6 Rb1 c1N Ba3 Rfc6 Rb3 Rd6 Bge4 Kf4 Bb7 Nec2 Bb2 Bd8 Bed5+ Kg3 Qe6 Re4 Kd1 Ne1 Ne2+ Kf3 Ng3 Ne2 Bc1 Bg5 Bf4 Ng1 Be5 Rdc6 Bb8 Rd6 Qg8 Ne2 Rg1 h1R Rg2 Ng1 Rc2 Bb2 Rc6 Bc3 Qc4 Bh8 Qg7 Qf7 Qgd4 Bf5 Qc2 Qd7 Qa2 Bgf6 Ba7 Bg5 Rag8 Na6 Bb8 Rc4 Qc2 Nb4 Qh2 Bhf6 Qa2 Bh8
1bb5/rP1kB2r/1r2RRRN/B2P1R2/3nb1n1/4Rr2/B4rnq/Q3KQ1N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 g4 a5 d4 c5 g5 c4 g6 h3 d6 a4 d5 e4 d7+ Ke7 f6+ Kd6 f5 e3 b6 e2 b5 h2 f7 c3 g7 h4 f6 c2 b7 a3 b6 a2 Na3 h3 Bd2 c1R Ba5 Ne7 g8R Ra6 Nc2 Bg7 f8R Rb1 f7 Nf5 Ne3 Nh6 Ng4 Qc7 d8B Rb2 Be7+ Kd7 Qb1 Bf6 Rg6 Nc6 b8R Nd4 b7 Rab6 Ra8 Rc2 Ra6 Rh7 Re8 Qb8 f8Q Be5 Qb2 Bc7 Rd1 Be5 Rd3 a1R+ Qb1 Rf7 Re3 Rf3 Qd1 Ra3 Qa1 Bd6 Ree6 Rca2 Qf5 Rf2 Qfb1 Raf3 Rf8 Qc7 Rf5 Qc2 Qd1 Bb8 Ref6 Rb5 Rae6 Rb6 Bc3 Ra7 Ba5 Nf7 Nh6 Ne5 Qdb1 Qc7 Kd2 e1N+ Ne2 Ng4 Kd1 Nc6 Ng3 Nd4 Bc4 Ng2 Rhe1 h1B R1e3 h2 Ba2 Ne1 Ng8 Rf4 Rfg5 Be4 Rgf5 h1R Qd3 Rh4 Nh1 Ng2 Qf1 Rh7 Nh6 R4f3 Rg7 Ne2 Rgg6 Qh2 Kd2 Nd4+ Kd1 Nf4 Ke1 Ng2+
BK1Qq3/4b1Nq/5k2/2R1Rr2/rB3R1n/Q1N1PQPb/Rnnn3q/2R1n3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 a5 Ke4 c5 Ke5 f5 d4 h5 b4 a4 e3 c4 d6+ Kf7 d7 c3 d5 c2 d6 h4 g3 h3 b6 h2 b5 a3 b7 a2 g6+ Kg7 b6 f3 Nh3 f4 Bg2 f2 Nc3 f1Q Bd2 c1N Qf3 Ra7 Ng5 Na6 b8Q Qg1 b7 Nh6 Qa8 Nf5 b8R Be7 Rb5 Qe8 d8Q Nb4 d7 Nh4 Rc5 Nc2 Kd5 Nd3 Kc6 Nce1 Ne6+ Kf6 g7 Rf8 g8R Qf2 Rg4 Nb2 Ng7 Ra4 Kc7 Qe2 Rf1 h1Q Kb8 Qh2 Rgg5 Qd3 Rc1 a1N Rge5 Nac2 Qaa5 Qh7 Rf2 Re4 Qa3 Rf7 Ra1 Rf8 Ra2 Ra4 Rf1 Ned3 Rc1 Nde1 Qf2 Rf7 Ba8 f3 Qg2 f2 Qf3+ Kg6 Nd5 f1N Bb4 Nd2 Nc3 Rf8 Qb6+ Rf6 d8R Kf7 Rd4 Bh3+ Qd8 Rf5 Rf4 Kf6
2N2q1b/bQr2r1R/K3R2R/BbBbN1kB/n7/PQ3P1n/3r4/1q1B1Bb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 h5 g4 h4 d4 b3 g6+ Kf6 a3 h3 d6 c4 d5 b2 g7 c3 d7 c2 d6 h2 Bg2 e4 Nf3 e3 Nbd2 e2 Bf1 e1B Nc4 Ne7 g8B Na6 Bf7 Bc3 Bh5 Nd5 Nfe5 Nf4 Bd2 c1B Nb6 b1R+ Qb3 Kg5 f6 Rb2 f7 Nc5 Be1 Be7 f8B Be3 Bd2 Rh7 Re1 Bcd4 Ba5 Bf6 Be7 Qg8 d8R Rf7 d7 Na4 Bc5 Rd2 Re2 Qg7 Rh8 Nh3 d8Q Ra7 Qd7 Qf8 Rh6 Bh8 Qc6 Bf5 Nc8 Bd7 Re1 b6 Rh7 Rc7 Ka6 b5 Qb7 b4 Re2 Kf6 g5+ Kf5 g6 Kg5 g7 Bc6 Bd6 Ba7 g8B Be8 Bc5 Bd7 Qc2 b3 Re1 b2 Qcb3 b1Q Bd1 Rf3 Bf7 Bd4 Bh5 Rf7 Ng4 Bc6 Re6 Bd7 Rg1 h1B Ne5+ Bg2 Rh1 Bd5 f3 Bg1 Bg6 Nf2 R1h6 Nh3 Bh5 Bb5+
1q3N2/1r4b1/1r2B2k/1Bn3R1/rB1Pnrbb/1qPB2N1/2R2Qr1/R4QKB w - - 0 1 illegal: No proof kernel
1R1R2nr/5r2/bK3R1B/1b2n3/NP5k/q1nQ2Nb/1BPq1QBR/3Rb1b1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 d5+ Kc5 g5 h4 a5 f4 d3 b4 g4 b6 e5+ Kb5 e4 h6 e3 b7 d4 h5 d2 h7 g3 h6 a4 Nh3 e2 Nf2 e1B Bb2 a3 Nc3 d3 Bg2 a2 Rf1 Bc5 Nh1 Nc6 b8R Bg1 Na4+ Ne5 Qe2 Bb7 Rd1 a1Q Qe3 Qd7+ Kb6 Ra7 Rf2 Qa3 Rf3 Kf7 f6 Kg6 f7 Kh5 f8B Kh4 f5 Ba6 f6 Rc7 f7 Qd8 Bh3 g2 Ng3 Qd5 Bg7 Ra7 f8Q Rf7 Rf6 Qd7 Rb1 d1B Qfc5 d2 Qd3 Qd5 Qf2 Bg4 Rd1 Bd7 Rd8 Bdb5 Bf8 Bh2 Bg7 g1N Bg2 Ne2 Rb8 Nc3 Rd8 Ne7 Bf8 Bg1 Bg7 Re8 h8R Ng8 h7 Qd7 Bh6 Qd5 Rb1 d1B Rb8 Bg4 Rd1 Bh3 Rd8 Ne7 Rb8 Rc8 Rd8 Ng8 h8R Qd7 Qf5 Qd2 Qd3 Rc4 Rh7 Rc8 Rc6 Bg4 Bf8+ Nh6 Rd7 Kg5 Rf6 Be6 Bg7 Rh8 Rdd8 Ng8 Rh2 Bh3 Bh6+ Kh4
nrb2B2/n2q3R/k1q5/b1n2PQ1/Qq1P3N/KB1N2nn/B3B3/2QBR2r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 b5 d4 h5 Kd2 c5 Kc2 Kc7 Kb3 Kb6 g4 e5 a5+ Ka6 f6 e4 f5 h4 d6 h3 f7 c4+ Ka2 b3+ Kb2 h2 d7 b4 g6 e3 g7 e2 g5 e1N g6 Ne7 g8B Nec6 g7 Na7 Nf3 Ng2 Be2 Nf4 Ne5 Nh3 Bh6 Qc7 d8Q Qc6 Nd3 Nd7 Qh4 Nb6 Nd2 Rb8 Qg5 Na8 Nf3 Bd6 f8Q Bc7 Re1 h1N Nh4 Ng3 Qe8 Bb6 Qdc1 c3+ Kb1 b2 Ka2 b1N Bb3 c2 g8B Nd2 Bf8 Nde4 Bd1 Qd5 Qa4 Nc5 Re7 Qb7 Rh7 Qd7 Bgd5 Bd8 B5f3 Bc7 Bfe2 Bb6 Kb2 Bc7 Ba2 b3 Ka3 b2 Bb3 b1Q Ba2 Bf4 Bb3 Bd2 Ba2 Kb7 a6+ Kb6 Bb3 Ba5 Ba2 Nc6 a7 Ka6 Qb2 c1Q Bab3 Nc7 a8B Na7 Bad5 Na8 Be6 Qc4 Qbc1 Qcb5 Bf7 Qbc6 Ba2 Qbb6 Bfb3 Qb4+ Kb2 Rg8 Qd8 Rg6 Qc3 Rg7 Bc2 Qh1 Re1 Nf1 Bcd1 Qhc6 Qc1 Rg1 Qf6 Rh1 Qfg5 Qbb7 Ka3 Ng3 Qcd2 Qbb5 Qc1 Qb4+
1Q4rK/qNR1bR1P/rnP4R/1b2B2B/1q3Q1n/6R1/1Nr1r1r1/4RBnk w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 a5 e4+ Kc5 b4+ Kb6 h4 g5 c4 d5+ e6 a4 e5 a3 c5+ Kc7 b6+ Kc6 b7 a2 h6 g4 h5 d3 h7 d2 h6 g3 Nc3 d4 Qg4 d1R Ne4 Kd5 b5 g2 c6 d3 b6 d2 Bb2 Qh4 Nd6 Ra6 Qf4 Rc1 Ne2 g1N Rh3 d1R Rg3 Nd7 b8R Re1 b7 Rc2 e7 Nb6+ e6 f6 Kg6 f5 e8Q Be7 Nc1 Ree2 Kg7 Rg2 Rb1 a1Q Nd3 Qa5 Re1 Qc5 Qf2 f4 Be5 f3 Nb2 Qhb4 Qd2+ Qcd4 Qf4 f2 Ra8 Qdc5 b8R Qe3 Nb7 Qea3 Bb5 f1R Ra7 Rff2 Bf1 Rfe2 Rba8 Bg5 Rb8 Ne7 Qg8 Ng6 e7+ Be6 e8B Nh4 Bh5 Be7 Rc8 Qa1 Qgf8 Bg4 Rc7 Rg8+ Kf7 Bf5 h8R Bd3 Qb8 Bb5 Rh7 Rd8 Kg7 Qa2 Qf8 Ke4 Kh8 Re8 Rhg7 Rd8 h7 Rc8 R7g6 Qf7 R3g4+ Kf3 Rh6 Kf2 Rf4+ Kg3 Rg4+ Kh3 Rg3+ Kh2 Nd8 Qf2 Qf4 Kh1 Rab7 Bd6 Rf7 Be7 Rc7 Na4 Kg7 Qa7 Nb7 Nb6 Bd6 Rd8 Be5 Rd6 Kg8 Rg6+ Kh8 Rg8+
k1n1K3/4NBPb/1r1N3b/2Qbb3/1qPrRb1R/7r/1B5n/B1NQBq1B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Kc4 d5+ Kc5 Kd7 g4 Kc7 c4 Kb7 b4 a4 f4 d3 b6 h4 f6 a3 g6 d4 g7 d2 f7 d3 g5 a2 b5 h3 f5 h2 f6 Qd7 g6 Qg4 Bg2+ Nc6 Na3 Qh3 Ne2 Nh6 g8B Ra6 Bb2 Bf5 Nc1 e5+ Kd5 e4 g7 Ne7+ Kd6 Ng4 Re1 Qh4 Bh1 Bh7 Kd7 Nc8 Ke8 Bd6 f8B Ka8 f7 Bf4 Bb4 Qf6 f8N Qd6 Bf7 Qc5 Rb1 a1B Ba5 Qb4 b7+ Ka7 b8B+ Ka8 B8e5 Rb6 Re3 Bh6 Rh3 Bf4 Rh4 Bh6 Qg1 d1Q Qc5 d2 Bf6 Qf1 Bfd4 Bg8 Ng6 d1R Ne7 Bf4 Be5 Rd4 Bf6 Rh5 Be5 Bh7 Bf6 Rb7 b6 e3 Nb5 e2 Nd6 e1B Be5 Bh6 Bf6 Bg3 Be5 Qa3 Be1 Bgf4 Bf6 Qb4 Be5 Kb8 Bf6 Rc7 b7 Rc6 Be5 Rb6 Bf6 Ka7 b8Q+ Ka6 Ba8 h1B Qbc7 Nh2 Qd7 Bd5 Qg4 Ka7 Qd1 Be6 Bh1 Bd5 Bbc3 Rf5 Ne2 Re4 Rb2 Rfe5 Nc1 Ka8 Re2 Re3 Bd4 Rh3 Bdc3 Ree3 Bce5 Rd3 Re4 Bc3 Bd4 Bcd2 Ba1 Bc3 Bd4 Rd2 Be3 Bf6 Bed4 B6e5 Bdb2 Rd4
R3R2b/2r1QnPn/6kB/1N1B2P1/1qqB2rQ/1r1r1b2/bBK2Q1r/BN6 w - - 0 1 illegal: No possible last move, all moves rejected
Nn4RN/4QP1k/1BqRq2b/1q1Rq1RR/Br1qb3/6n1/K4PQr/3b3Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 Kd2 Kg7 Kc2 e5 Kb3 h5 g4 a5 d6 c5 g5 a4+ Ka2 a3 b4 h3 b6 e4 b5 h2 g6 e3 b7 h4 d7 h3 d5 c4 d6 e2 b6 e1Q Ne2 c3 Be3 c2 Nd2 c1Q Nc4 Ra5 Nf4 Rb5 f6+ Kh6 f7 Qh4 d8R Rc5 g7 Qf6 d7 Qd4 Ng6+ Rg5 Bg2 Qe5 Bc6 Nf6 g8R Nh5 Ba4 Ng3 Rb1 Qcc3 Rb5 Qa5 Rd5 Qb5 Qc1 Rh7 Nh8 Qd4 Rg1 h1Q Qa1 h2 Qb1 Nc6 b8Q Qe5 Bd4 Rg4 Qa8 Nb8 b7 Qe6 Qa1 Q1e5 Bb6 Rf4 Rd6 Qhc6 Rg2 Rd4 Qh1 Re4 Rg1 Bg7 Qg2 h1B Rd5 Bf8 Rg5 Rd4 Rh5+ Kg7 Rd6 Rh6 Rd5 Kh7 Rd6 Bg7 Rg8 Rf4 d8Q Qd4 Rhd5 Rh2 Qe7 Bh6 Rh5 Rfh4 Rgg5 Qde5 Rgd1 Re4 R1d5 Rd4 Qg1 Be4 Qh1 Bd7 Na5 Rb4 Nc4 Qg6 Qg2 Bg4 Qh1 Bd1 Qg2 Nd7 b8R Qge6 Rbg8 Nb8 Qa5 Rb3 Qe1 Rb1 Qeh1 Rb4 Bd4 Bdc2 Nb6 Bd1 Ka1 a2 Na8 Bb3 Kb2 Bbc2+ Ka3 Bd1 Bb6 Qg7 Bb3 a1Q+ Ba2 Qaf6 Bb3 Qd4 Ba4 Qgf6 Ka2 Qfe5
k1n2nNn/5q2/1BnN1RQn/2QQ2rB/1b1n3P/3P1R2/1KBQn1b1/5r1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 b4 a5 h4 c5 d6 f5 b6 Kc6 e5 Kb7 b5 g5 h6 a4 h7 a3 d3 f3 Kd2 f4 Kc3 a2 e6 g4 d7 g3 e7 f2 e8B g2 Bh5 f3 Ne2 g1N Bg5 c4 Qc2 Qc7 d8Q Nh3 Bg4 Qf7 Qd5+ Nc6 Kb2 Nh6 Nd2 Bb4 Be3 Rg8 h8Q Rg5 Qhc3 Nf4 Rh3 Ne6 Bh5 Nf8 Nd4 Bd7 Rc1 a1N Nf5 Nb3 Ne4 Nd4 Q2d2 Ra1 Be2 f1N Ned6+ Ka8 Ne7 f2 Rf3 Nh2 Bd1 f1N Bc2 Ng3 Ng8 Ngf5 Rcf1 Ne7 R1f2 Rf1 b7+ Kb8 Rf6 N2g4 R2f3 Nge5 Qa3 Bh3 Qa5 Ndf5 Bb6 N5g6 Qa1 Nfd4 Qb1 Rf2 Qh1 c3+ Kb1 Bg2 Bc7+ Ka7 Qf5 Nge5 b6+ Ka6 b8Q Nc8 b7 Neg6 Bb3 N6a7 Qa8 Nh8 Qc5 Rf1+ Bd1 c2+ Kb2 c1N Bb6 Qe6 Bb3 Nce2 Bc2 Ne7 Qe8 Nec8 Qg6 Qf7 b8Q Nac6 Ba7 Ba5 Qb3 Bb4 Bb6 Ng4 Nb5 Kb7 Qbd5 Ka8 Nd6 Nh6
2N4b/1N5n/2K1Br2/1rnB1R2/q1B3kB/qb3bB1/2b1QPQP/3R1qrQ w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 a4 e5 c4 b3 a5 g4 a6 b4 a7 d6 c6 e4 h6 b2 c5 e3 h7 Kg5 f6 g3 f7 g2 c7 b3 c6 Bg4 c8Q Kh5 c7 e2 Nf3 e1Q Qe2 g1R Ng5 Qd1+ Nd2 b1Q Ne6 b2 Qb7 Qe7 c8B Bg7 f8B Qa4 Ne4 Na6 Bf4 Bf3 Bg3 Rb8 a8B Nc5 Nd8 Bd4 Qc6 Rb5 Be6 Bc3 Qb7 Nf6+ Kc6 d5 Nd6 Qd3 Ra2 b1B Nc8 Bc2 Bh4 Rhg8 h8Q+ Nh7 Qg7 Bd4 Qg3 Rg6 Qg2 Bh8 Bg7 Rh6 Be5 Rf6 Beg3 Qda3 Ra1 Qg7 Rc1 Qg5 Rd1 Qgc1 Rd4 Qe1 Rf4 Qb1 Rf5+ Kg4 Qe3 Qd1 Bc4 Qf1 Qe2 Bb3 Qe7 Bc2 Nb7 Bb3 Qd8 d4+ Qd5 d3 Qd1 d2 Qe1 Qd3 Qe2 Ra1 Re1 d1B Qh1 Bdc2 Rd1 Rc1 Na5 Qe4 Rd4 Bd3 Kc7 Rg1 Bc6 Bb1 Nb7 Bd3 Kd6 Bb1 Rd3 Qd4 Rd2 B1c2 Rd3 Qc3 Kc7 Qe1 Rd1 Qf1 Qde4+ Kh3 Bc6d5 Bh5 Kc6 Bg4 Q2d3 Be2 Qeg2+ Kg4 Qe3 Bf3 Qd3 Ne4 Qe2 Nc5
rNNr4/bK1N3N/N4qkB/1bRqR3/n3n3/3qQnP1/rP1Qr3/Q6B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Ke4 a5 d4 h5 f4 c5 g3 h3 d6 h2 Kd5 e4 f6 c4 f5 h4 d7 a4 b6 h3 b7 a3 Nc3 e3 Ne4 e2 Bg2 e1N Nc5 a2 Na6 c3 Ne2 c2 Nc3 Bd6 Nb5 Nd3 Na7 Nc6 b8N Rh7 Re1 h1R Re5 h2 Bh6 Re1 Bh1 Bc5 Rc1 a1R Qe2 Bb6 Qe3 Ra2 Kd6 Rh8 d5 Bb7 Nc8 Re2 Qf4 Ba7 Qe3 Qb6 d8Q Qd4 Kc7 Nc5 d6 Na4 d7 Qd5 Re1 Qd3 Rc5 Rd2 Re2 Nd4 Re1 Bg2 Re2 Bh3 Kb7 c1Q Qa5 Qcc3 d8Q Nf3 Qdd4 Rc2 Qdb4 Qcd4 Qbd2 Bf1 Re1 Ne7 Re2 Nd5 Re1 Rd8 Re2 Kg8 f7+ Kh7 f6 Ndc3 Re1 Kg6 f8N+ Kf7 Re2 Ne4 Nfd7 Kg6 f7 Qf6 f8N+ Kf7 Nh7 Kg6 Bg2 h1Q Re1 Qh5 Bh1 Qhg5 Qc1 Re2 Qad2 Bh3 Qcd1 Be6 Qa1 Bc4 Rc1 Bb5 Re5 Qgf5 Rc7 Q5e6 Rcc5 Qed5+
1r1q3Q/1qQ4R/q1R1b2b/2nBN1n1/4B1nB/4kPK1/RNR2n1P/bR5r w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 c4 Kf6 c5 Ke5 c6 Ke4 f6 e5 f7 d5 b6 g5 b7 a5 h6 d3 h7 g4 b5 d4 c7 a4 b6 g3 Qb3 g2 Ra2 a3 Qc3 Nh6 Nf3 g1N Bg2 Na6 b8Q Ng4 b7 Be6 c8B Bh6 f8R Nh3 Bg5 Nc5 Bh4 Ng5 Qc7 d2+ Ke2 d1N b8R Ra6 Rbb2 d3+ Ke1 Rd6 Rc2 d2+ Ke2 Rg8 h8R Rb6 Rf5 Rb8 Rf6 Qd6 Bd7 Qa6+ Bb5 Rgd8 Rh7 Rd6 Rg6 Kf4 Qd4+ e4 Qh8 e3 Ne5 Rdd8 Kf1 e2+ Kg1 Rd4 Bd5 e1Q+ Kg2 Qe4+ f3 Ke3 Kg3 Ndf2 Bd3 d1Q Nd2 Rdb4 Rf1 Rb1 Rg1 Qb4 B3e4 Qbb7 Rh1 Bg8 Rc6 Be6 Ra1 a2 Ndc4+ Kd4 Nb2 Ke3 Rg1 Qd4 Rg2 Rh1 Rb1 a1B Na4 Rd8 Ra2 Rb8 Nb2 Nd1 Rc2 Ndf2 Ned3 Qf6 Ne5 Qd8
1q2N3/Qnq2KR1/n1r1N3/1rR5/2n3Bb/2P1Q1R1/BrkB2P1/1b1qRRn1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 e5 Kc4 h5 Kd5 a5 f4 a4 b4 a3 c3 a2 f6 Kg6 b6 Kf5 g6 d3 b7 e4 f7 e3 b5 h4 b6 e2 g7 e1N Qa4 h3 Na3 h2 Qb5 d2 Ne2 d1Q+ Bd2 Rh6 Qc5 Qc7 Nb5 Rc6 Rb1 a1Q Qe3 Nh6 g8B Be7 f8R+ Nf7 Rg1 Na6 b8R h1R b7 Rh5 Nd6+ Kf6+ f5 Qb2 Ra1 Nf3 Nd4 Qbb1 Rh1 Ng1 Ra5 Qbb6 Re8 Nd8 Be2 Ra7 Ra8 Qb2 b8R Rb7 Rc5 Rbb6 Be6 Nb7 Ra7 Qbb1 Bg4 Rb2 Ne2 Bd8 Nf4 Kg5 f6 Be7 Nc4 d6 Bg8 Bf5 f7 Be4+ Ke6+ d5+ Nd6 Bd8 Bf5 d4 f8Q d3 Qf7 Bf6 Qd7 Be7 Kf7 Bd8 Bc1 d2 Ree5 Be7 Ne8 Bc2 Be6+ Bf5 Rd8 Kg4 Ba2 Bh4 Ne6 Bc2 Rf5 Be4 Rf2 Re5 Re2 Kf5 Qe7 Bc2 Rd3 Rd5 Re1 Re5 Qh6 Rd5 Rf1+ Ke4 Rg3 Re5 Rg5 Kd3 Rg3+ Qf3+ Qf4 d1N Bd2 Ne3 Re1 Qfd1 Qf2 Ne2 Rhf1 Ng1 Qf4 Qa1 Qf3 Bb1 Qf2 Kc2 Qf4 Nd5 Qe3 Nb6 Qd7 Nc4 Bh7+ Re4 Bf5 Qb8 Bg4 Re5 Ra5 Reb5 Qc7 R5b4 Rc5 Rb5 Qb6 Nba5 Rd7 Nb7 Qa7 Qc7 Bc1 Qdd6 Bd2 Qb8 Re7 Qdc7 Kg7 Ncd6 Bd5 Ba2 Kg8 Qc1 Rg7 Bb1 Ba2 Nc4 Kf8 Qd1 Kg8 Qe5 Kf7 Qec7+
n1qB1QB1/3R2rr/B7/Q1NK4/1b4B1/1bPN1P2/1nqrBnR1/2N1q1qk w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Kg6 Kd4 Kf5 b4 d5 b6 e5+ Kc3 a5 g6 h5 c6 h4 b7 d4+ Kc4 e3 g4+ Ke4 b5 h3 c3 e2 c7 e1Q g5 h2 g7 d3 b6 d2 g6 a4 Ra2 a3 Nh3 Nd7 b8N Bb4 b7 Nh6 g8B Ra7 g7 Ng4 Qc2+ Kf3 Be2+ Kg2 f3 d1Q Na6 e4 b8Q e3 Qa4 Nf2 Nd2 Qc2 Qa5 Rh7 Be6 Nd1 g8B Nb2+ Kd5 Qg1 Nc5 Nb6+ Kc6 Na8 Nf2 Bd7+ Kd5 Qc8 Ndb3 Ba4 Nfd3 Rb7 Bd2 Rg7 Nbc1 Bb3+ Ke4 Ra7 Bg4 Rh7 Be1 Rb7 Bh4 Ra7 Ra1 a2 Bd8 Rb7 Rb1 a1R Kd4 Ra2 Ke4 Qf2 Rd1 h1N Rd2 Qg1 Ra1 Qd7 c8B Nf2+ Ke5 Rc7 Ba6 Qc8 Rd1 Rcf7 Qd6 Rfg7 Qf8 Kh1 Rb1 Nc4+ Kd5 Rb2 Bf1 Ra2 Rb2 e2 Rd2 e1Q Rd1 Qb1 Re2 Qc2 Rdd2 Nd1 Rg2 Nf2 Be2 Nb2+ Kd4 Qb1 Nf4 Na4 Ke5 Rb2 Rd7 Rd2 Nfd3 Nb2 Kd4 Qc2 Ke5 Ba4 Kd5 Bb3+
5B2/3n4/qBb1RbqN/qNn3R1/N3P1rQ/PB1N3K/q5r1/1NQ2bnk w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg2 c5 h4 f5 d4 b5 e6 Kd6 e3 g5 e7 f4 a3 g4 h6 b3 h5 c4 h7 f3+ Kh2 c3 h6 b4 Bc4 f2 Nh3 f1B Rg1 c2 Nf2 b2 Nd3 Na6 Bb3 Nf6 e4 Rg8 h8Q Qa5 h7 Bd7 Bh6 Bc6 Qc1 Bg7 Ra2 Nc5 e8N+ Ke7 Nd6 Nfd7 Rg2 Kf6 Nb5 g3+ Kh3 Kg6 d6 Kh5 d5 Bf6 Bf8 Rg4 Be7 Rag8 Bf8 Be2 Rf2 g2 Rf5+ R8g5 Re5 Bf1 Re6 g1N+ Kh2 Nb6 d7 Kh4 d8B Nbd7 d6 Rg6 Bb6 Rg7 Qd1 c1Q Ra1 Qe3 Qc1 Qg5 Ra2 Qg6 Ra1 Ne5 d7 Rg8 d8N Ned7 Nb7 Qa6 Nd2 b1Q Ra2 Qa1 Nb1 Qc3 Rf2 Qe1 Rf5 Qc3 Rg5 Rg7 Bc2 b3 Bd1 b2 Bb3 Na4 Nbc5 Qca5 Bd6 Rg8 Be7 Rg7 Qd8 Rg8 h8N Rg7 Bf8 Rg2+ Kh1 Kh3 Nf7 Rg8 Nh6 Rg4 Nd2 b1Q Qe7 Qa2 Nb1 Nb2 Na4 Kg3 Nb4 Nd3 Qh7 N3c5 Qe7 Kf2 Kh2 Ne2 Qh7 Rg2+ Kh3 Kg1 Nd3 Kh1 Rd5 Qf7 Rde5 R8g4 Rg5 Qg6 Qe7 Bb2 Qf6 Bc3 Qf2 Bf6 Qh4 Ng1#
6B1/2b1R3/bRR1Rn1r/RbQ1nq2/2BPNP2/2r1N2n/1krQK2q/4n1B1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 Kd6 g4 e5 b4 c5 f6 h5 g5 a5 b6 e4 b5 a4 b7 c4 f7 h3 b6 c3 g6 c2 g7 a3 Rh2 a2 Kd2 e3+ Ke1 e2 Rh1 h4 Bg2 h2 Bf1 h3 Qd2 Ra3 Nc3 Nf6 g8B Qd7 Nf3 Qf5 Ng5 Rh6 Nd1 Rc3 Ne3 Nbd7 b8R Ba6 b7 Ne5 Re8 Be7 f8R Bd8 b8R Bc7 Re7 Bb5 Rg1 h1N Rfe8 h2 Rb7 Nf2 Rb6+ Rc6 Rg2 h1B Rg4 Nh3 Re6+ Kd7 d6 Rc3 Ne4 Bg2 Rc6 Bf3 Rb1 a1Q Rg5 Qa2 Rh5 Ba6 Rbb6 Qb2 Nf2 Bd5 Ne4 Bdc4 Rg5 Bcb5 R8e7+ Kc8 d7+ Kd8 Qd1 Qa2 Kd2 e1N Bc4 Qb2 Ke2 Qa2 Bb2 c1R Qd2 R1c2 Bc1 Bb8 Rcd6 Kc7 Rbc6+ Kb7 d8Q+ Bc7 Qf8 Qb2 Rc5 Nc6 Rg6 Kb6 Rdd5 Ka5 Rde5 Na7 Rcc6 Kb4 Qc8 Ka3 Rb6 Ba4 Ra5 Nc6 Qf8 Ne5 Rec6 Nd5 Rge6 Nf6 Bb5 Ka2 Bc4+ Kb1 Qc8 Bb8 Qc7 B4b5 Qd6 Bc7 Qc5 Qa2 Kf1 Qa1 Qe2 Nh7 Ng4 Qa2 Be3 Rb2 Bg1 Nf6 Ne3 Rd2 Qd3+ Qc2 Qe2 Kb2 Qf2 Rd1 Qe2 Rc1 Qd1 Qh2 Qe2+ R1c2 Qd2 Qh1 Ke2 Qh2+
Bb1N3K/QQ1qq3/b2r1B2/1r1n4/P1b2nQB/1R3BrP/1Nkr1q2/6RB w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg3 c5 Kh4 f5 Kg5 b5 Kg6 c4 a4 c3 e4 c2 d4 b3 e6 Kd6 h3 b2 e5+ Ke7 h6 b4 h7 b3 Be2 f4 Nf3 Na6 Ra3 Nc7 Nc3 b1B Bb2 Ba2 Rg1 c1Q Ng5 f3 Nf7 f2 Bf3 Qd7 Nd8 f1Q Ba1 b2 Rb3 b1R d6+ Ke8 e7 Qa3 d5 Qf2 Qe2 Ra6 Nd1 Nf6 Nb2 Ne6 Qc4 Rd1 Qg4 Rd2 Bh1 Rg8 h8Q Qac5 Qh7 Nf4+ Kg5 g6 Qg7 Rb6 Kh6 g5 Bf3 Rb5 Bh1 Ne4 Kh7 Ba6 Bf3 Nc3 Bh1 Qe6 Bf3 Kd7 e8B+ Kc8 d7+ Kc7 d6+ Kb6 Bh5 Ka5 Bh1 Ncd5 Qf7 Rg7+ Kh8 Rg6 Qh7 Qe7 e6 Qc6 Qg7 Qc8 Qd4 Rf6 Qa7 Bh6 Qd1 Qc7 B5f3 g4 Qb7 g3 Qe2 Qf7 e7 g2 e8B Qe7 Qe6 Bg5 Qg4 Bh4 Bg6 Bg3 Bge4 Qc8 Re3 Bc4 Rb3 Nb6 Bc6 Nbd5 Qa7 Bh2 Ba8 Qc6 Nf7 Rg6 d8B+ Qcc7 d7 Rd6 Nd1 Bg3 Bf6 Bh2 Nb2 Bg3 Ra1 g1R Rc1 Rg2 Rg1 Bh2 Bh4 Rg3 Qb7 Qe4 Bdg5 Qe7 d8Q Qd7 Qf8 Qcd8 Bf6 Q8e7 Rd3 Kb4 Qfg7 Re2 Nd8 Rd2 Bc3+ Kb3 Bcf6+ Kc2 Rb3 Qee6 Qe7 Qf7 Qe3 Qfe7 Qea7 Rdb6 Bhg5 Ne6 Be3 Rg2 Bfd4 Bb8 Bg5 Rd6 Bdf6 Rg3 Bh4 Nef4
2N3q1/1br2QNq/KN2q2q/1NBr3P/1b1P2Rn/3B2RN/1n2Q1rk/B1n5 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 h4+ Kf4 b4 a5 h5 e5 f3 Kg3 d4 c5 b6 g5 Kb5 e4 f6 c4 f4 e3 d6 e2 f7 e1Q f5 c3 b7 c2 d7 a4 f6 a3 Bc4 a2 Na3 Ne7 Qe2 Qc7 d8N Nd7 b8N Bb7 Nh3 Nc5 Bd3 Nf5 Nd7 Rc8 Nb6 Nh4 Bb2 c1N Ne6 Na4 Ng7 Qd7+ Ka5 Rc7 Nb5 Be7 Rf1 Rd8 f8B Qc6 f7 Qh6 Nc8 Rd5 Bc3 Nb2 Rf4 Qh7 Rb1 a1Q+ Kb6 Bd6 Be7 Qd2 f8Q Qa2 Qf7 Qe3 Ra1 Qe6 Re4 Qeh6 Bf8 Qc4 Ra3 Qc6+ Ka5 Qd7 Rf4 Qde6 Be7 Nd1 Ba1 Nb2 Qe1+ Kh2 Qe2+ Ng2 Rc3 g3 Kb6 g4 Ka5 Be5 Bc5 Bd6 Ra3 Kh1 Kb6 Nh4 Rb3 g2 Ka7 g3 Rg4 Ba8+ Ka6 g1R Rf4 g2 Nc3 Na4 b5 Re5 b6 Rd7 b7 Bc7+ Ka7 Qc4 b8N Kh2 Ne8 Bb7 Nb5 Ba5 Bg6 Rc7 Nd7 Nb2 Ndb6 Qe6 Rbf3 Rd5 Bd3 Bb4 Re4 Rf1 Ref4 Rf2 Re3 Bc6+ Ka6 g1Q Rfe4 Qgg8 Rg3 Ba8 Ng7 Rg2 Reg4 Bb7+
1R1NQ3/kbBr3R/b6q/1q2P1n1/1q2QPR1/1nb1R3/2nQ4/1RNr1nKB w - - 0 1 illegal: No proof kernel
1NqbB3/1k1rq3/5B1N/bPQP1rqR/Q3b3/K2nBRB1/Q2nn3/q1B5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d6 Kd7 b6 Kc6 Ra3 a5 g4 h5 d4 e5 Kd2 e4 Kc3 a4 Kb4 h3 f4 h4 f6 e3 g5 h2 f7 h3 g6 e2 f5 e1B+ Nd2 Ra5 g7 Qh4 f6 Bg4 b7 Qh6 Ne2 Bf5 Ng3 Be7 f8Q Qg5 f7 Nd7 b8B Ngf6 g8Q Ne4 Rf3 a3 Qa4+ Kb7 Bb5 a2 b3 a1Q Ba3 Ndc5 d7 c6 d8B Qc1 Bb2 Qc4+ Ka3 Nd3+ b4 c5 Rf4 Qe6 Nc4 Rh7 Ne5 c4 Nd7 c3 Rf3 c2 Bbc7 c1Q Nb8 Bc3 Be8 Nd2 Bf4 Rc5 b5 Be4 Be3 Ba5 Nf5 Qd6 Bc7 Bd8 Nh6 Qdf6 Bcf4 Rf5 Bg3 Qc8 Qc5 Qe5 Ba1 Rg7 Bb2 Qee6 f8B Rd7 Bg7 Qee7 Rhf1 h1Q Qa2 Qg1 d5 Qh1 Bgf6 h2 Be1 Qhg1 R1f2 h1N Rh2 Ng3 Rh5 Ne2 Bg3 Qb1 Bc1 Qa1
5n2/1k5n/5B1P/K1q1RBn1/2qRb2N/QBbrB3/Q1PB1n1R/1r1brN2 w - - 0 1 illegal: No possible last move
1q1R2R1/1B4r1/2rRP2R/1K1b2Rr/3B1Q2/2PN1qN1/1N1b1b2/nkqQbn2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Ke4 b4 g5 h6 f5 h5 a5 e6 d5+ Kb3 f4 Ka4 f3 h7 d3 e7 g4 e8N d2 e3 f2 h6 g3 b6 g2 b5 d4 b7 d3 b6 Nd7 b8R Nc5+ Kb5 a4 b7 a3 Nh3 g1B Ng7 a2 Qe2 d1Q Nh5 d2 Na3 Ra7 Bb2 Nf6 N3f4 Qc1 Qd1 Ng4 Nd3 Nh2 Bd4 Nb3 Nc4 Be6 Ncb2 Bb4 Rb1 Qd6 Rg8 a1B b8Q Bd5 Rg5 Rg7 Bh3 f1Q Bc8 Ba5 Bb7 Qf3 Qc7 Rc8 h8R Bf2 h7 Nf1 Rg8 Qd8 Qf7 Rc6 h8R Qb8 Rd8 Bc3 Rhg8 Bb4 Nc4 Bac3 Ncb2 Ba5 Ra1 Bab4 Ra6 Na1 Rh2 Rc7 Rad6 Rc6 Nhf4 Ba5 Rhh6 Bab4 Nh5 Ba5 Qe1 d1R Qf6 Rd2 Qd1 Re2 Qf8 Bce1 Qf7 Bad2 c3 Bh4 Nhf4 Rh2 Ne2 Bhf2 Qc7 Rh5 Qf7 Qh3 Qc7 Kf3 e4 Qf5 e5 Ke4 e6 Qf3 Bf6 Bf4 Ng3+ Ke3 Qa4 Kd2 Bd4 B4e3 Qd7 Bf4 Qc4 Kc2 Qa4+ Kb1 Qc7 Rg6 Qd1 Rg7 Qf7 B4e3 Qf4 B3d2
k1NB3n/1b1q2R1/1R1NP1Qn/B5rB/q3QP2/n2KrB2/3Q1bqn/B5r1 w - - 0 1 illegal: No proof kernel
n1NbQ3/q2RbQ2/1BBP3r/1K3b2/4P2B/1B3N1n/1qn4q/kqRr2BQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 Kd6 Kd3 f5 Kc4 c5 e4 h5 b4 a5 g4 h4 b6 a4 b7 f3 b5 f4 b6 a3 g6 h3 g5 h2 g7 f2 g6 a2 Na3 f3 Nc2 Qe7 Bh3 f1Q+ Qe2 f2 Nb4 Qg2 Qe1 Bf5 Nc6 Na6 b8B+ Nc7 b7 Nf6 g8B Rh6 g7 Ng4 Ba7 Rd8 Bg5 Na8 Rc1 a1N Bh4 Nc2 Kb5 c4 Nf3 f1Q b8Q+ Qc7 Qc8 Nf2 Ne7 Qd3 Rf1 h1Q Qb7 Qhh2 Nc8+ Kd7 d6 c3+ Bc4 Be7 g8Q Qd1 Bg4 Nh3 d5 Qge2 Baf2 Qed2 Qb8 Qa7 Qf7 Qdd4 Bb3 Q4d2 Ra1 Qb1 Bg1 Qdc1 Ra6 Qcb2 Ra4 Na1 Bh5 c2 Rd4 c1B Rd1 Bg5 Rc1 Rdh8 Rf2 Nc2 Rd2 Rf8 Qf1 Rg8 Qg2 Bf6 Qh1 Rg2 Rd4 Rd2 Rd3 Rd1 Bg4 Kd8 d7 Bg5 Qe5 Bgf6 Qee6 Kc7 d8B+ Kb7 Bc7 Bd8 Qee8 Bfe7 Kc4 Ka6 Bcb6 Bh7 Bd7 Bg6 Bbd4 Ka5 Bc6 Bf5 Rd2 Nb4 d6 Nc2 Rg2 Rf1 Rg7 Rd1 Kd5 Kb4 Rh7 Ka3 Kc4 Q2a2 Bb6 Kb2 Kb5 Ka1 Qg6 Bg5 Rd7 Qb2 Qgf7 Bge7
2qBB3/qqNb2PR/1nr1bNnQ/r1n4B/1k1BR3/8/1B2PK1q/b1N4Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 b4 Ke7 d4 Kd6 g4 a5 g6 c5 g5 f5 b6 h5 g7 a4 b7 h4 g6 a3 b5 c4 b6 a2 Na3 h3 Bg2 c3 Bb2 f3 Kf2 h2 Nh3 c2 Nf4 c1Q Nd3 Qb1 Nc1 Nd7 b8N f4 b7 Ne7 g8B Nb6 Bf7 Bg7 Be8 Ra5 Nd7 Rh6 Nf6 Be6 b8B+ Qc7 Ba7 Qc8 Qd2 Qe4 Rb1 a1N Bh3 Nb3 Bg4 Nc5 Bh5 Qd3 Ra1 Qda6 Qe1 Qab7 Rb1 Bd7 Ra1 Kc7 d6+ Kc6 Nb5 Bh8 Ra4 Bg7 Kf1 f2 Nc7 Bh8 Kg2 f1B+ Kf2 f3 Qd1 Bh3 Qf1 Ne6 d5+ Kc5 Re4 Bf5 Nh7 Bc3 g7 Ng6 Nf6 Be5 Re3 Kb4 Re4+ Nc4 Be3 Nc5 Bed4 Nb6 Qd1 Bde6 d7 Qa7 d8Q Qab7 Rf1 h1Q d6 Qa7 d7 Qh2+ Ke1 Bg4 Rh1 f2+ Kf1 Qcb7 Qa8 Qc8 d8B Bd7 Qc2 Bge6 Qd5 Qf4 Kg2 Qh2+ Kf3 f1Q+ Ke3 Qd1 Qd2+ Ka4 Kf3 Qb3+ Qe3 Kb4 Qb7 Qg1 Rhh4 Qh1+ Kf2 Qd5 Qh3 Qc6 Qa6 Q6b7 Qf1 Qh3 Qh1 Qh2+ Kf1 Bg8 Nh7 Qf4+ Bf2+ Nc4 Ba1 Qh2 Bg4 Nh8 Ke1 Bb2 Bd4 Qh3 Kf2 Re6 Qd6 Nb6 Qf4 Bf7 Nf6 Rc6 Rh7 Bfe6 Qh6 Ng6 Bh5 Bc3 Bb2 Ka4 Ba3 Ba1 Bab2 Qh2+ Kf1 Kb4 Ke1 Qd6 Kf2 Qh2+
1BQ2b2/3Pbqk1/Qq1r1rP1/N1R3nb/3BB2n/1nQ2b1K/2N2BRB/7q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 Kf2 h5 g4 e5 Kg2 a5 d4 e4 b6 e3 d6 c4 d5 e2 b7 e1B g5 a4 f6 a3 d7 c3 d6 c2 b5 a2 f5 Bh6 b6 Rh7 g6+ Kf8 f7 Bg5 Qd4 Rh8 Ne2 Na6 b8B Nc7 b7 Bb4 Bb2 c1N Rh2 Ne7 Nd2 Ra6 Nc4 Ne6 Na5 Nb3 Rc1 a1Q Rc5 Qb6 d8B Qa2 Qc3 h3+ Kg3 Bh6 Bg2 Ng5 Nd4 Kg7 Be4 Rf8 Rg2 h2 d7 h1Q Ba1 h4+ Kg4 h3 Bh2 Ba3 b8B Bb7 Bdc7 Bc6 Bcg3 Bb5 Bf2 Be2+ Kh4 Bh5 f6+ Kh8 Kg3 Nf5+ Kf4 Bg7 Nc2 Nh4 Kg3 Bb4 Rc8 Be7 Rc5 Qb4 Bb2 Rd6 Ba1 Qb6 Bb2 Rg8 f8Q Bh6 Qc8 Rf8 f7+ Bg7 Nd4 Bh6 Qa6 Kg7 Bhg1 h2 Nc2+ Rf6 Ba1 Rc8 Bb2 Rc6 Ba1 Rd6 Bb2 Qa4 Ba1 Qc4 Bb2 Kh8 f8Q+ Qg8 Qfc8 Bhf8 Qd2 Qd5 Bbd4 Kg7 Qc3 Qg8 Bfe3 Qf7 Bgf2 Qd1 Bf4 h1B Bfe5 Ngf3 Kh3 Qa1 Bh2 Ng5+ Kg3 Qe1 Rg1 B1f3 Rg2 Ne6 Kh3 Qf1 Ba7 Qh1 Bb8 Ng5+
1n2N3/QnP1qQ1K/bQq2RB1/1Nr1n3/4qr1N/N1Rb2B1/b2P4/2bkN3 w - - 0 1 illegal: No proof kernel
1nKRq1B1/Q1PN4/1RB2b2/B1P3Q1/b4N2/2QrQbQ1/1rrrn3/knq5 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Ke2 Kf7 Ke3 Kf6 Kf4 a5 g4 h5 c4 d5 b4 e6 b6 h3 g5+ Kf7 Ke5 a4 f4 d4 c6 h2 c7 a3 b5 d3 b7 d2 f6 h4 b6 h3 f5 a2 Nc3 Qe7 Bg2 Bd7 Nge2 Ba4 Qe1 d1R Nf4 Rd2 Bc6 Bg7 Qe3 Qe8 Rb1 a1R Ncd5 Raa2 Kd6 e5 Rd1 h1N c5 Rd3 Bd2 h2 Ba5 e4 Rb5 Rad2 g6+ Kf8 f7 Ne7 Ke6 Ng3 Nf6 h1B Rb3 Rh5 Rb4 Bh8 Nd7+ Kg7 Rb3 Bf3 f6+ Kh6 f8Q+ Kg5 f7 Nd5+ Qe7+ Bf6 f8Q Nc3 g7 Rhh2 g8B Nb1 Qf7 Ne2 Qh7 Rb2 Qh3 Rdd2 Qc3 e3 Qh6+ Kg4 Qh5+ Kg3 Qg5+ Kf2 Rb4 Rdc2 Rd2 Ke1 Rb5 Na6 b8Q Rg2 Qa7 Rd8 b7 Nb8 Rd4+ Rd2 Rb6 Kd1 Kd6 Rc2 Qee5 Kc1 Rd3 Ng3 Rd4 e2 Qee3 e1Q Rd5 Ne2 Qg3 Na6 b8Q Rh2 Qc8 Nb8 Qca6 Rf2 Qad3 Qg1 Qce5 Rb2 Qa3 Kc2 Qeg5 Qc1 Qa1 Nbc3 Qa3 Kb1 Qb4 Ka2 Qbd4 Nb1 Qdc3 Rd3 Rd4+ Ka1 Rd5 Rc8 Nf8 Ng1 Nh7 Rc2 Nf8 Rdd2 Rd3 Qe4 Rd5 Ne2 Rd3 Na6 Kd7 Re8 Rd6 Re5 Rd3 Nb8+ Kc8 Re7 Rd8 Red7 Nd3 Qe5 Nf4 R7d3 Nd7 Qe8
rB1bRnQ1/P1R1n2n/1Pb4n/1Nq2k2/6NQ/QB1qB2B/r3b2q/B4K2 w - - 0 1 illegal: No possible last move, all moves rejected
2n2nbk/3RQ3/6B1/1NNq2Bb/1bB1P2b/1rr1BKbP/R3QB1b/r4N2 w - - 0 1 illegal: No possible last move
8/4Br1k/1RB1Q3/1n1b1n2/1PNPnQ2/1Nbq2nK/Nnr3R1/2rNN1nQ w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 Kf2 Kg7 g4 a5 Kg2 h5 g5 e5 d6 c5 f6+ Kh7 f7 a4 d7 a3 f5 e4 f6 c4 b6 e3 b7 e2 Nc3 e1N+ Kh3 a2 Nf3 Na6 b8N Nh6 Bg2 Bb4 f8Q Ra7 f7 Nc7 Rg1 Nd3 Ne1 Bb7 Nc6 Nb5 Na5 Nf5 Rb1 a1R Nb3 Bd5 Be4 R1a2 Rg2 Rc7 Qd6 Rf8 Qf4 Rc5 Qdf3 Rc8 Nd1 c3 Qf1 c2 Qh1 Bc3 g6+ Kg7 Kh2 h3 Bf3 Kh8 g7+ Kh7 Be4 h4 Bf3 Qe7 d8N Qd6 Nc6 Rc7 Nb4 Rc4 Kg1 h2+ Kf1 Ra1 Na2 h3 Be4 Nf2 Bf3 Ne4 d4 Qa6 Be3 c1N Bf2 Qg6 Bh4 Ne2 Bd8 Ng1 Be7 Nc5 Kf2 Na4 Kf1 Qg3 Be4 Qd3+ Kf2 Rc7 Bf3 Rfc8 f8N+ Kg8 Ng6 Kh7 Ne5 Rd7 Bd8 Rf7 Nc4 Rc6 Be7 Rc5 Rc1 Rc7 Rc2 Rc1 Re2 Rc5 Re6 Rc8 Nba5 Rc7 b4 Nb2 Rd6 Ne3 Kg3 Nf5+ Kg4 Rc8 Rb6 Rc5 Rg3 Rc8 Nb3 Rc5 Qg2 h1N Qh2 Rc8 Rg2 Nhg3 Qh1 h2 Be4 N1e2 Bf3 Ne4 Kh3 Ng1+ Kg4 Nh4 Rd2 Ned6 Rg2 Bc6 Na3 Bd2 Bd5 Ba8 Bb7 R8c2 Nc4 Bc3 Bf3 Ne2 Qg1 h1N Kh3 Nhg3 Qh1 Be4 Bg4 Bb7 Bd7 Bd5 Bc6 Nde4 Qd6 Rf6 Qe6 Nhf5 g8Q+ Kh6 Qg5+ Kh7 Qd2 Rf7 Qf4 Ng1+
Q2R3B/2P2Pbn/1Qb1K3/5B2/N1q4b/2Nb4/brkNbrnN/2N1nR1R w - - 0 1 illegal: No possible last move, all moves rejected
1B1B1k1n/rR1B3b/NRNbK3/b7/2N2r2/PPnn2QN/1b3r1n/4QNq1 w - - 0 1 illegal: No proof kernel
K1nb2b1/1QnRN1nR/2q1bQ1B/b1r1PrQ1/3Q4/1rB1Q3/1r2P1N1/1k5B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Kd7 Kf3 f5 g4 h5 b4 c5 d4 a5 d6 Ke6 d7 Kd5 b6 Kc4 d5 f4 Ke4 a4 g5 a3 g6 h3 b5 h2 g7 a2 b7 f3 b6 h4 d6 h3 Na3+ Kc3 Kd5 c4 Rb1 a1B Rb4 f2 Bg2 f1R Nc2 Rf5 Nf3 Qf6 d8Q Na6 Kc6 Nc7 b8Q Ra3 b7 Be7 Ne3 Rb3 Nd4 Be6 d7 Rh7 Bd2+ Kb2 Qa7 c3 b8Q c2 Kb7 c1R Bc3+ Kb1 Nc6 Rh4 Rb6 Rhb4 Qd4 Qh6 Qf8 Bd8 Qf6 Ne7 g8Q Nc8 Ne7 Rb5 Rd1 h1N Qgg5 Ng3 Bh1 h2 Ng2 Nh5 Qde3 Ng7 Rd2 Nd5 Ka8 Bb2 Qbb7 Nc7+ Kb8 Bg8 Re6 Ba3 Qad4 Bb4 Ra6 Rc5 Ra7 Rc2 Rd3 Rcb2 Rd2 Nb5 Ka8 Bba5 Rd3 Bdb6 d8B Qg6 Qf8 Qc6 Qff6 Be6 Ng8 Bc7 Be7 Bd8 Bf8 Ne8 Bh6 Ng7 Ne7 Bg8 Qc4 Be6 Rd7 Bg8 Nh4 Be6 Qcd4 Bg8 Bd5 h1B Bf3 Bg2 Bd5 Bf1 Bh1 Bh3 Ng2 Nc7+ Kb8 Qa4 Ng6 Rf4 Re7 Nce6 Qb5 Nh5 Rh7 Nhg7 Rd7 Nc7 Ne7 Bhe6 Qbb4 Qc6 Qb7 Nb5 Ka8 Rf3 Bb4 Rf5 Bc3 Nc7+
3k2b1/1R4QP/1NBn3K/1Pq1Nr2/n2B2R1/1N1nnrbB/1r3Q1b/N3bN2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 h4 f5 d4 a5 e4 c4 b4 c3 e5 c2 h6 a4 h7 a3 h5 a2 d6 Na6 b6 Bb7+ d5 Nh6 d7+ Ke7 e6 Nc5 b5 Bg7 Be3 c1R Ne2 Qc8 d8N Ra3 Ng3 Rg8 h8Q Ng4 h6 Nf2 h7 Na4 Rh4 Be5 Qe1 Nd3 Nf7 Qc5 Nd2 Rf8 Rg4 Rb1 Bd4 Rb2 Qg7 Bb8 Ne5+ Kd8 Rc1 a1B Qf2 Bc8 b7 Bc7 Kg2 f3+ Kh3 f4 b8N Rf5 d6 Ba5 Nb3 Be1 d7 Bb7 Bg2 Bd5 Nf1 Bc4 Rg3 g4+ Kh4 Bd5 Bh3 Bc4 Rg1 g3 Rc2 g2 e7+ Kc7 d8N Bg8 Qfg3 f2 Nb7 f3 e8B+ Kc8 N7a5 Kd8 Nh2 f1N Qf2 Nd2 Nbd7 Nc4 Nb6 Nd6 Nf1 Nc8 Bc6 Nd6 Rh1 g1B Rc4 Rf7 Kg5 Bh2 Kh6 Rf5 Rg1 Bg3 Qh8 Bh2 Rg7 Bg3 Rb7 Bh2 Qg1 f2 Qhg7 Bg3 Nh2 f1N Qf2 Ne3 Nf1 Rb1 Rb4 Bac3 Na1 Rb2 N5b3 Bh2 Qfg2 Beg3 Qf2 Be1 Bc3 Ng2 Rg4 Ne3 Bd4 Raa2 Qf4 Rf2 Qf3 Rab2 Qg2 R2f4 Qf2 Rf3
4N1nb/Q1r4R/4B3/1b1B4/BB2Nk2/nPP2qbB/qnKbQRR1/6nr w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 h4 Ke6 e4 d5 h5 f5 b3 a5 b6 g5 b7 a4 c6 g3 c7 a3 h6 f4 h7 g2 Bc4 f3 Ra2 g4 Ne2 g1N Nbc3 f2 Rh2 f1Q Ng3 Bd7 c8B Bb4 Nf5 g3 Qe2 g2 Nd6 Qa5 Ne8 Nc6 b8Q Qf3 Qa7 Nd4 Kd1 Bd6 Bd2 Nb5 Rb2 a2 Kc1 Kf7 e6+ Kg6 e5 Kf5 e7 a1B e6 d4 Ne4 d3 Bd5 Bg3 Bb4 Na3 Ra2 Bd4 c3 d2+ Kb2 d1N+ Kc1 Nc4 Kc2 Bb5 Bd7 Kf4 Bc8 Nh3 Rb2 g1B Rf2 Qa2 Rg2 Bge3 Rf2 Nf6 Bd7 Rf8 h8R Rf7 Rh7 Ng8 Rg2 Rf8 Qa6 Qf2 N8f6 Ba4 e8B Rd8 e7 Bb5 Kd3 Ke5 Qa7 Rc8 Rb1 Bd2 Bef7 Ndb2+ Kc2 Rc7 Ne8 Qf4 Bg4 Qe3 Bfe6 Rf1 Re1 Rh1 Rf1 Ng1 Bh3 Qf3 Rff2 Kf4 N8f6 Ba6 e8B Be5 Ba4 Bb5 Ne8 Bg7 Qb7 Bh8 Qa7 Na3+
6r1/4QrQ1/3r2nr/R2N4/1nP1bQR1/B2NnQQ1/2k1nbqP/1q2RB1K w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 Kf7 b4 Kf6 f4 d5 Kf2 e5 Kg2 a5 b6 g5 h6 g4 b7 d3 b5 d2 h7 d4 b6 a4 Qf3 d1R Bd2 a3 Bb4 e4 Bd2 d3 Ra2 e3 Qf2 g3 Nh3 e2 Qg1 e1R Be2 Nc6 b8R Bb7 Bf1 Bc5 Bb4 d2 Nc3 Qd3 Nf2 Nge7 Rg8 Ng6 Rg7 Rhf8 h8Q Re6 Qh3 Qb1 Nd3 Bf2 Qg4 Rab8 Qf3 Rf7 Bf8 Ba8 b7 Nb4 Rg8 Rd8 b8Q Be4 Ra1 a2 Qc7 Nd5 Ba3 Nb4 Rg7 Rg8 Qe5+ Ke7 f6+ Kd7 f5 Kc6 Qf4 Rd6 Ne5+ Kc5 Nd5 Kd4 Nd3 Re1 Nb2 d1N Nd3 Nh8 Rg4 Ne3+ Kh3 g2 Q3g3 Rff8 f7 Ng6 f6 Re2 Qgf3 Qb3 Re1 a1Q Q3g3 Qab1 Qgf3 Rc8 f8Q Rc7 f7 Rd2 Q8h6 Ra6 f8Q Rf7 Qhg7+ Raf6 Ne7 Kc3 Nd5+ Kc2 Qe7 Rd6 Rd1 Be1 Qgf2 g1N+ Kg3 Ne2+ Kh3 Nf8 Q2g3 Bf2 Re1 Ng6 Rg1 Nf5 Kg2 Ne3+ Kh1 Qc3 Qh7 Qh8 Qg7 Qh3 Ne5 Rd4 Nd3 Rdf6 Nc3 Rdd8 Nd5 Rdd6 Rg5 Rc8 Qgg2 Rh8 Nc3 Rg8 Ra5 Rf5 Nd5 Rh5 Qgg4 Rh6 Qgh4 Bf5 Rg4 Be4 Qhg3 Qg2+
N1N1B3/2R1nN2/1R6/k1PN2b1/2b1PBr1/N2n4/1KQRq1q1/r2bqQqb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 g5 h4 a5 e4 d5 b4 Kd7 c4 Kc7 Kc2 Kb6 h6 f5 c5+ Kb7 h7 d3+ Kb2 d2 b6 f4 h5 d4 h6 d3 b5 f3 e6 f2 e7 a4 e8N g4 Ne2 g3 Qc2 d1Q Na3 g2 Nc7 g1Q Ra2 d2 Nc3 Be6 N3d5 Ne7 Rh3 Ra5 Na8 Rg8 h8Q Qe2 h7 d1B Bf4 Rg4 Qf6 Bh6 h8N Bg5 Rh7 Nc6 Nf7 Qg8 Bh3 f1B Qf5 Kc8 b7+ Kd7 b8R Ne5 b6 Kc6 b7 Bg2 Qf6 Bh1 Rg7 Rg3 Bf5 Rg4 Bg6 Qge1 Bd2 Ra6 Qf1 Ra7 Bf4 Ra5 Ne3 Bc4 Nd5 Ra7 Rf8 Ra5 b8N+ Kb7 Nc6 Ka6 Rh7 Qg7 Na7 Nd3+ Kb1 Qg8 Rb8 Qg7 Nc8 Qg8 Nb5 a3 Rb2 Ra4 Rb6+ Ka5 Ka1 a2 Na3 Qh2 Nd8 Qg2 Be8 Qee2 Nf7 Qg7 Rhh6 Qd4 Rhc6 Qdf2 Rc7 Qfe1 Rb1 Ne5 Kb2 a1Q+ Kc1 Qd4 R1b4 Qdg1 Kb2 Bb5 Rd4 Bc4 Nb1 Ra3 Rd2 Ra1 Na3 Nd3+
b2bnR2/4b1Bk/2r2qnr/1P1rP1K1/R1NQQ1B1/3R3b/1r1Q2N1/1QQ2q2 w - - 0 1 illegal: No possible last move, all moves rejected
1N2r2r/B1KBnnb1/2b2PB1/6QR/k1qRBN1Q/1b1P1q2/2B3n1/2n3bR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 e5 Ke4 b5 f4 c5 g4 h5 a4 b3 f6 b4 f7 c4 g6 b2 g5 c3 d3 b3 g7 c2 a5 h4 g6 h3 d6 Kc6 f5 Kb5 Kd5 h2 a6 e4 d7 e3 f6 e2 a7 e1B Qg4 Ne7+ Kd6 Rh3 g8B Bh4 g7 Bb7 Bh7 Bf2 g8B Bh4 Bg6 Qa5 d8R Qb4+ Kc7 Bg7 f8Q Nd7 Ne2 Bc6 Na3+ Ka4 Nf4 b1N Be3 c1N Qg5 b2 Nb5+ Na3 Nd4 b1B Bd5 Be1 Qh8 Bc2 Qhh4 Bb3 Bf2 Re3 Bh3 Ne5 Bd7 Qc4 Bdf7 Rb8 a8B Bb4 Rh8 Bc5 Rh5 Rh8 Bfe8 Nf7 Ra2 Bb5 Bae4 Bc6 Bg1 Ba7 Rg2 Re1 Rg4 Nc2 Bf2 Ne3 Bg1 Bb5+ Nc6 Ng2 Be3 Bc5 Nb8 Bc6 Bf2 Ba3 Ba7 Bc5 Bf3 Re5 Bge4 Re6 Bd1 Bg1 Bc2 Bd4 Rg1 h1Q Rd1 Qh3 Rf1 Qf3 Rh1 Nd8 Bf7 Bg1 Bfg6 Nf7 Nd5 Nc8 Bef5 Nd8 Rd4 Nf7 Nf4 Ree8 Be4 Ne7
2B2Krq/1n1QnP2/N1NP4/1BB1rRq1/n2R4/1QQqbq1k/2BB4/1b4n1 w - - 0 1 illegal: No possible last move, all moves rejected
1Nq1Nq1B/1P4nN/6R1/1r3N2/B1kb1R1Q/3b3K/rQ2rP1N/nrb1b2B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 b4 h5 d4 c5 b6 a5 f6 e5 g5 a4 d6 Ke6 d7 Kd5 g6 e4 g7 e3 b7 h3 f7 h2 b5 h4 b6 h3 Qe2 c4 Bb2 c3 Na3 c2 Nc4 c1B Nd6 a3 Ne8 a2 Nf3 Ra5 Rg1 h1Q Bg2 h2 Kf1 Bc5 f8N Na6 b8N Nh6 g8B+ Nf7 b7 Rb5 Nh7 Nb4 Rb1 Qc7 d8N a1R Ne6 Nd8 N6g7+ Ne6 Nf5 Ra2 Qd2 Kc4 d5 Bd7 d6 Qc8 Bc3 Ba7 Qb2 Nc2 Be5 Bc6 d7 Na1 d8Q Bd4 Qh4 Be4 Bf7 Rg8 Bh8 Rg7 Bh5 Re7 Bg6 Ng7 Bf7+ Kc5 Bb3 Kb4 Ba4+ Kc4 Ne1 Bc2 Be4 Qf3 Rg6 Qf4 Kg2 h1R Nf3 e2 Nh2 e1B Kh3 Rf1 Bh1 Bd3 Qd2 Rg1 Rb3 Qd6 Qb2 Re2 Ra3 Qf8 Rb3 Be4 Rf3 Bd3 Rf4 Rg5 Qd2 Rb1 Qb2 Qd8 Ng3 Rb5 Nf5 Qc8
q3R3/q3Q1N1/n1b1r1BQ/b3Bb1q/rQpP1BQn/2QR2P1/1N6/2K1nk2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 d4 h5 Kd2 c5 f6 e5 f7 a5 g3 c4 f5 e4 f6 a4 b6 h3 b7 h4 b5 a3 b6 h2 Ne2 h3 Nf4 a2 Qg4 Qc7 Bd3 Bf5 Ne6 Nd7 b8Q Nh6 b7 Ra4 Re1 h1Q Ng7 h2 Nc3 Nc5 Nd1 Na6 Nb2 e3+ Kd1 Be7 f8Q e2+ Kd2 Qf3 f7 h1B Qbd8+ Qd7 Qa5 Qd8 Rb1 a1Q Qc3 Qa8 Rd1 e1N b8B+ Kd7 d6 Kc6 d7 Kd5 Be5 Bb4 Qe7 Ba5 Qeb4 Re8 f8Q Re6 d8Q+ Rd6 Qgg5 Qh5 Qde7 Re6 Qg4 Qa3 Qb6 Qc5 Qbb4 Qca7 Ra1 Bh7 Qff6 Nf5 Qh6 Nh4 Bg6 Be4 Be8 Bhf5 Bg6 Neg2 Re1 Bf3 Re3 Ne1 Rd3 Bg2 Kd1 Bh1 Bcf4 Ke4 Kc1 Bf3 Qh3 Bg2 Be3 Kf3 B3f4+ Kf2 Qg4 Kf1 Ra3 Bc6 Rb3 Ra2 Ra3 Bb6 Ra5 Bd8 Rd5 Bc7 Rd8 Ba5 Re8 Ra4
q1r1B1B1/2q2b2/2n1K3/5N1N/1pkPBbn1/nRPR3B/3r2rN/Q1B1Q1b1 w - - 0 1 illegal: No proof kernel
QQBk4/3rN2n/N1R1rqQ1/b1q2p2/P1q2b2/RN3K2/PQ5B/nb2Q2n w - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 bxa4 Qd7 Nf3 Qe7 Ng1 Qd8 Kf2 f5 d4 c5 e4 g5 h4 b5 e5 c4 e6 b4 e7 c3 d6 f3 d5 c2 d7+ Kf7 e8Q+ Kf6 d6 b3 h6 g4 h5 b2 h7 Nc6 h6 Bb7 Ne2 Na5 Nd2 b1Q Ng3 Ra7 Ba6 Qb3 Rh3 Be4 Qe1 Qe7 Ba3 c1B d8N Qd5 d7 Nb3 Ke3 f2 Nc6 f1N+ Kf2 Qb5 d8Q Rd7 Qb8 Bd3 Rb1 Na1 Bc8 Bc2 Rb2 Bb1 Bd6 Qg7 Rb4 Qc4 Rb6 Qgf7 Bc7 Bb4 Qa8 Qe7 Nge4+ Ke6 Ra6 Ba5 Ra3 g3+ Kf3 g2 Nb3 g1Q Nec5+ Kf6 Rb6 Ng3 Na6 Qgc5 Qh5 Qed6 Qg5+ Kf7 Ne7 Ke8 Rc6 Nf6 Qg4 Rg8 h8Q Nh1 h7 Qde6 Qhg7 Qf7 Bb8 Kd8 Qgg3 Rf8 Q7g6 Qg7 h8Q Nh7 Qf4 Qb2 Qhe5 Rf6 Qfd2 Qbd4 Qb2 Re6 Qf4 Qf6 Qd6 Qb6 Qdb4 Qbd4 Bh2 Bf4 Qbb8 Qdc5
r3B3/4R2n/2qq1nNQ/bbkPR3/4P1R1/4r1p1/1RN1KB1B/rnQ1b1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 d4 f5 b4 c5 b6 a5 b5 g5 h6 c4 b7 f3 h7 f2+ Ke2 c3 h5 c2 h6 a4 b6 a3 Be3 c1B Nf3 f4 Ne5 a2 Rh5 g4 Ng6 Qe8 Re5 Nd7 b8R Bd2 b7 Be1 Qc1 Ndf6 Na3 Qc6 Nc2 Bd7 Bh3 f1N Bf2 Ra3 Rbe8 Rd3 b8R Be7 Rb2 Bd8 R8e7 Nd2 Rab1 a1R Bf1 Bb6 Bh3 Kc7 d6+ Kb7 d5 g3 Bg1 Ka7 Bh2 Ba5 Be6 Ka6 Bf7 Be8 d7 f3+ Kd1 f2 d8B f1Q Bb6 Qg1 Ke2 Qgc5 Ba7 Bd7 Be8 Qb4 Bf2 Kb5 Rg5 Kc4 Rg4 Qbd6 Re5 Nh5 Re7 Ngf6 Re5 Rg8 h8Q Nh7 Qg7 N5f6 Qf8 Ng5 h7 Rh8 Qh6 Rf8 h8R Ngh7 Bf7 Ra8 Rhb8 Be8 R2b7 Bd7 R1b2 Nb1 Be8 Bc8 Rbe7 Ba6 R8b3 Bb5 Bfg1 Rd1 Rf3 Rd3 Rf1 Rd4 Bf2 Kc5+ Ke3 Rd2 Rg1 Rd3+ Ke2+ Re3+
1Nk4B/Q2bnQ1n/1Qr2bNq/R1PP4/2B5/pQrb2K1/r1n2QqN/3R4 w - - 0 1 illegal: No proof kernel
n1R1KB2/Q4nBB/Q1qbk1nP/q1rb4/1N6/6Bq/prPR2N1/b4NB1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kd3 g5 Kc4 d5+ Kc5 a5 h4 a4 f4 g4 b4 a3 h6 d3 h7 a2 b6 g3 f6 g2 f5 d4 b5 d2 h5 d3 b7 Ra7 b6 Ra6 Qe2 d1N Nd2 Qe8 Ngf3 Bg7 Nh4 e5 Kd6 g1B Ng2 Nd7 b8Q e4 Qa7 Ra5 b7 e3 b8N Bb7 Na6 Nf8 Nb4 Nh6 Rh3 Rg8 h8B Ng6 Ba3 Nc3 Rd1 Qa8 Kd7 Nd5 Rh2 Bf8 Bg7 Rc5 Bb2 Bd6 Be5 Bf2 Bg3 Nc7 Rh4 Bg1 Rc4 Rb8 Rc3 Bd5 Rc4 Ng4 h6 Rb6 Rc3 Qc6+ Kd8 N4e5 Rc4 Kg8 Rc3 Na8 f7+ Kh7 f8B Kg8 Be7 Kf7 f6 Ke6 f7 Bf2 f8B Be1 Nb1 d2 Qea6 e2 Bg5 Bf2 Be3 e1Q Bd3 Qh1 Be4 Qh3 Rc4 Be1 Bg1 Bf2 Bd3 Bd4 Be4 Ba1 Bd3 Qc7+ Ke8 Nf7 Rc3 Rb7 Rc4 Qa5 Rc3 Rcb5 Rc8 Rc5 Be4 Nf4 Bh7 Ng6 Rf1 d1Q Rf2 Qdg4 Nd2 Qe4 Nf1 Rb6 Rd2 Qc4 Nc6 Rb2 Nb4 Qcb5+ Nc6 Qbb6 Nb4 Qc6+
1N2rQb1/k4K2/B3n1P1/n1NpP3/QQrq1Q2/2b1n3/1R3BbR/qQ2r2B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 Kd3 h5 Kc4 f5 Kd5 a4 e4 h4 g4 h3 c4 a3 b4 d3 e6 h2 b6 a2 e7 d2 b5 f4 c5 d6 c6 f3 c7 Kd7 g6 f2 g5 Nc6 g7 Rb8 b7 Qe8 b6 Na5 g6 Nb3 Ba6 f1R Nf3 Nh6 g8B Re1 Nd4 Ng4 Nc6 Nd4 Nc3 Bg7 Na4 Qd8 Rb1 a1Q Rb2 Ne6 Qf3 d1N Qf4 Rh3 Be3 Bc3 e5 Rh4 Bf2 Ra8 b8Q Nde3+ Ke4 Nc4+ Kf5 Na5 b7 Ne3+ Kf6 Rg4 Kf7 Rh4 Qa7 Rg4 b8Q Bb7 Qb4 Rc4 Qd4 Bc8 Q8b5 Bb7 e8Q+ Kc8 Qf4 Rb8 Rg1 h1B Nc5 Bg2 Rh1 Ra8 Q5a4 Bd5 Nb8 Bg2 Bb5 Bbd5 Qc6 Qh4 Rh2 Qg4 Qc2 Qgd1 Qb1 Qd3 Nca6 Qd4 Qe8+ Kb7 c8Q+ Ka7 Nc5 Bgf3 Ba6 Bg2 Nbd7 Rb8 Qf8 Ra8 Qc6 Re8 Qca4 Nc7+ Kf6 Bgf3 Be6 Bh1 Bf5 Bg8 Bc2 d5 Be4 Ne6 Nb8 Bh7 Kf7 Bf3 Bf5 Be4 Bh3 Bf3 Bg2 Be4 Bh1 Bf3 Kf6 Bg2 Kf7 Bg8+
q1kN3N/6Br/N2P1np1/1N3n1q/q1B1N3/2bnrR1r/K3bB1P/QQ2R3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 f4 c5 d4 e5 Kd2 a5 Kc3 a4 Kb2 a3+ Ka2 e4 f6 g3 b6 e3 d6 c4 d5 e2 b5 e1R f5 g2 f7 c3 b7 c2 f6 Ra5 b6 Nh6 Nc3 Re8 Bc4 Rh7 Nb5 Re3 Ne2 g1Q Ng3 Be7 f8B Qf2 f7 Ra4 Re1 Qf5 Ne4 Qh5 Rb1 Bf6 Rb3 Rh3 Be3 Bc3 Qa1 Nf5 Bc5 Qdh4 Bf2 Kd8 d7 c1N+ Kb1 Nd3 Ka2 Nc6 b8Q Nce7 b7 Ng8 Bb4 Ra8 f8N Nf6 Ng6 Q4g4 Nh8 g6 Bf8 Qd1 Rb1 Qa4 Rb3 Ra6 Bg7 Re6 Qd6 Re7 b8N Ba6 Qf4 Re5 Qfc1 Re8 Qcb1 Re6 Nd4 Kc7 d8N Kc8 d6 Bb5 Ng5 Ree3 Ne4 Ba6 Rb7 Bb5 Rf7 Qa8 Kb3 a2 Na6 Ba4+ Ka3 Bd1 Nb5 Be2 Qab2 a1Q+ Kb3 Qa5 Q2a1 Qc7 Ka2 Qd7 Re7 Ng3 Re5 Qda7 Rf5 Qd4 Rf3 Nf5 Bb3 Qb4 Bc4 Qa4+
4Q3/1b1r1n1R/3pr3/1rN1PQPn/4RNR1/1qR1BB2/q1RB4/1kb1nq1K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 b4 Ke6 e4 h5 g4 f5 Kg2 a5 c4 d3 b6 d6 b7 a4 b5 f4 c5 a3 g6 a2 b6 d2 c6 h4 g7 Rh6 c7 Nc6 b8R Nf6 g8R Ra5 b7 Nh5 Nh3 Rb5 Qc2 d1Q Nc3 f3+ Kh2 f2 Be2 f1R Bd2 Rf7 Rc1 a1N Na4 Rd7 Bf3 Qe8 Qd3 Qf7 Rc3 Qb3 Re1 Nd8 Kh1 Nc2 Nc5+ Ke7 e6 Kf6 e7 Ke5 e8Q+ Re6 Nf4 h3 Rh8 h2 Rh7 Bh6 Ra8 Qg8 b8B Bb7 c8R Nf7 Ba7 Bg5 Qf1 Kd4 e5 Qa2 Re2 Qb3 Qb1 Ne1 Qf5 Qa2 Rb3 Kc4 Rc3+ Kb4 Rc2+ Ka3 Re4 Bh6 Rc3+ Kb2 Bb6 Bg5 Raa4 Kb1 Rac4 Bh4 Rc2 Bf2 g5 Be3 Bb4 Bc1 Bd2 Qb3 R4c3 Qa2 Ra8 Qb3 Raa4 Qa2 Na6 Qb3 Bbe3 Qa2 Nc5 Qb3 Qe7 Qa8 Rac4 Qaa2 Qe8 Qa5 Ng6 Qa8 Rg4 Nd3 Nf4 Ne1 Rd4 Qaa2 Re4 Nd3 Kg2 Ne1+ Kf1 h1Q+ Kf2 Qh3 Kg1 Qf1+ Kh2 Qfc4 Kh1 Qf1+
2Rqb3/4bq2/pnN2rB1/1Nr2QR1/b4N1Q/NrN2Bq1/2n2PP1/2BK1k2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 b4 Kf7 c4 d5 f6 Kg6 b6 Kf5 f7 Ke4 b5 e5 g6 h5 b7 a6 b6 h4 g7 h3 c5 h2 c6 d3 c7 d4 Ra3 d2+ Ke2 Nf6 g8N Nd5 Nf3 Rh6 Ng1 Rf6 Rf3 Nb4 Na3 Be7 f8Q Bd7 c8B Be8 Nh3 Nc2 Rg3 Nd7 Nf4 Rb8 Rg5 Qc7 Rg1 h1Q Qe1 d1R Qb4 Qh4 Rh1 Qg3 Rh8 Qd8 Qc4 Ra8 b8N Rd3 b7 Nb6 Nc6 Rb3 Bg4 Rc8 b8N Rc7 Na7 Rc5 Qb5 d3+ Kd1 d2 Bd3+ Kd4 Bg6 e4 Qh6 e3 Qh4 Kc3 Bf3 Kd4 Nh6 Kc3 Nf7 Kd4 Ke2 Kc3 Nd6 d1B+ Kf1 Kd4 Qd7 Kc3 Qf5 Kd4 Nbc6+ Kc3 Bb2+ Kd2 N7b5 e2+ Kg1 Ke1 Nc3 Qd7 Ndb5 Qd5 Bc1 Qf7 Kh1 Kf1 Rf8 e1Q Rg8 Bd7 Rc8 Qg4 Kh2 Be8 Kh1 Qd2 Kh2 Qh5 Kg3 Qd8 Be4 Ne1 Qh2 Rb2 Qhh3 Qe2 Qh4 Ba4 Bd5 Qd2 Be4 Nc2 Kf3 Q2d7 Bd5 Rb3 Be4 Kg1 Ke2 Qd4 Bd5 Qe3+ Kd1 Kf1 Nh5 Bd6 Nf4 Qg3 Bf3 Be7+
2B1qq2/r5Pn/3QbBB1/P1qB2RN/1kn1Q1p1/5Rb1/1B1rQb1K/3N2n1 w - - 0 1 illegal: No proof kernel
n2Q3K/5p1r/BbR3QB/k1qN2R1/2B2nP1/Bb2B3/RP1q1N1q/b1n4r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb6 e4 h5 g4 a5 d4 h4 g6 c4 d6 c3 d7 f3 g7 c2 d5 a4 d6 a3 Bh6 c1N Nc3 a2 Bc4 h3 Qc2 h2 Nd5+ Ka5 b6 f2 b7 f1Q Nh3 Be7 Nf2 Na6 b8B Qg1 Ba7 Rb8 Bae3 Qc7 d8Q Qb6 d7 Nf6 g8R Qd1 Rg5 Nc7 Kf5 Bf8 e5 Nh5 e6 Qd2 e7 Na8 e8B Nf4 Rd1 Qc7 Kf6 h1Q Qg6 Bc5 Kg7 Bb6 Rf1 Qc5 Re1 Nce2 Rec1 Qh2 Ba6 Rh7+ Kg8 Rg7+ Kh8 Qe7 Rc6 Qc5 Qdf6 Nc1 d8B Bf5 Be7 Bc2 Qd6 Bb3 Qd8 Qcc2 Ba3 Qc5 Bc4 Rc8 Bd7 Rc7 Bc8 Re7 Bd4 Re1 B8a6 Rh1 Be3 Nce2 Re1 Nc1 Rd1 Qdb4 Rd4 a1B Re4 Qc3 Re7 Qd3 Ra7 Qd2 Bb4+ Ka4 Bc8+ Ba5 Rb7 Qc3 Rb5 Qd2 Ba6 Qcd4 Bf8 Bb6 Rb4+ Ka5 Bc5 Bd1 Rb3 Bc2 Ra3+ Ba4 Ra2 Qe5 Ba3 Bb3 Ne7 Qc5 Nd5 Rh7+
1r1Q4/2N1p3/2B2KnQ/1Nk1n1N1/Prq1bRP1/1B2qn1R/rN1b4/1b1N2B1 w - - 0 1 illegal: Other
1Q6/nb1P1NQ1/1r1Q1b1N/Q2r4/B2rRKRn/1qR2Q2/3pPBqn/1k5b w - - 0 1 illegal: No proof kernel
1kN3B1/1P4nB/R3PQ2/Q2Nqb1q/1R2p1B1/Rr5r/r3bKnb/BB5q w - - 0 1 illegal: No proof kernel
1B4Bb/P1Bn2n1/QP2N3/5r1q/2p1kr2/QqRqBbKQ/2R4n/N1Bb4 w - - 0 1 illegal: No proof kernel
2r2n2/B1qB1K2/1b1bR1n1/1P4n1/1NQ2pbB/k3PN2/2RBb1BQ/b3r2Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 h5 d4 f5 g6 a5 e3 c5 d6 a4 g5 c4 b6 f3 d5 h4 d7 h3 Ke6 f4 d6 c3 b7 f2 g7 h2 g6 a3 Kf7 c2 Bg2 f1N Ra2 Ng3 Bd2+ Ka4 b4 Qa5 d8Q Qc7+ d7 Rh3 b5 Bc5 Qh4 Bb6 Nf3 Ne7 g8B Ne4 d8B Nd7 b8B Nf8 g7 Bg4 Ba7 Rc8 Nc3+ Kb3 Nd5 Neg6+ Be7 Rg3 Qg1 c1B Rc2 a2 Nb4 a1B Bh7 Ka3 g8Q Bcb2 Qd1 Bg7 Rg1 h1B Qh2 Bge5 Qb1 Bd7 Bh4 Bd6 Rgc1 Rg5 Rc6 Rd5 R1c2 Rd3 Qd1 Rb3 Qf1 Rb1 Qh8 Re1 Qc4 Ne7 Bg6 Bg4 Bf5 Neg6+ Bd7 Ng5+ Kg8 Bdc5 Re6 Bd6 Bh3 Ngh7 Kf7 Bg2 Qh1 Bf1 Bg2 Be2 Bd8 Nf6 Q8h2 Ne4 Bh4 Ng5+
1Rb2N2/R2nQ3/1r5p/1bP2rBk/2QR3P/2b1nRQN/3r1BrR/Kr3q2 w - - 0 1 illegal: No possible last move, all moves rejected
KN3R1b/1Q1Q1NB1/2p1Pq2/4R3/b3nbR1/B1Brk2r/1nP3b1/rBb1B3 w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Kd2 Ke7 Kc3 d5 Kd4 g5 Kc5 a5 b4 d4 h4 g3 f4 a4 h5 g4 b6 a3 h6 a2 b5 g2 e6 d3 h7 c6 b7 d2 b6 g3 Rh4 Qe8 Na3 Ra5+ Nb5 Nh6 Rg4 Ra6 Nh3 g1R Bc4 g2 Nc7 Qd8 Ng5 Ra3 Na6 Ng8 Nf7 Rd3 Ba3 Bh6 Rc1 a1B Ba2 Nf6 Bb1 Rg8 h8B Nbd7+ Kc4+ Nc5 b8B Rf8 b7 Ne4 Bc3 Rh8 Bc7 Re1 b8Q g1B Qb7 Be3 Nb8 Bg5 Kb4 Rh3 Ka5 Qd4 Kb6 Kf6 Ka7 Na4+ Bb6 Nb2 Ka8 Rf1 Bba5 Rg1 Qa7 Ba6 Qb7 Bb5 B5b4 Ba4 Ba5 Kg7 f6+ Kg6 f5+ Kh5 Bc7 Bh6 Bg3 Bef4 Be1 Rf1 Nd8 Rfh1 f7 Qf6 f8R Rg1 Nf7 Rf1 Qe2 d1B Qd2 Bf3 Qd1 Bg2 Qd2 Rde3 Qdd7 Rd3 Rd1 Bc1 Rd2 Bf4 Re2 Qg5 f6 Kg6 Ne5+ Kf5 f7 Qe7 Re8 Qh4 f8B Qf6 Nf7 Rfh1 Rg8 Rf1 Bg7 Kg4 Ref8 Kf3 Rh8 Rfh1 Rh5 Rf1 Re5 Rg1 Rf2+ Ke3 Rf1 Rgh1 Rg1 Bb3 Rg5 Qe7 Bgf6 Bf1 Ba2 Na4 Ba5 Bd2 R1g4 Bg2 Bg3 Bb2 Bh4 Ra1 Be1 Bdc1 Bb1 Bd4 Rh5 Nb2 Bac3 Ba4 Bh8 Bf6 Re5 Qd8 Bg7 Qe7 Bh6 Bh8 Bg7 Qf6
2N4N/K4N2/P3n3/1k1P4/1Nb1qQbr/3pr1rB/1R2NRRr/B1br1Q1n w - - 0 1 illegal: No proof kernel
Q2rN1b1/1n6/pQN5/b2N3R/PR1R1RB1/2PrR1nK/3bnbq1/3Bb1k1 w - - 0 1 legal: proof: e4 c5 g4 d5 exd5 f5 gxf5 h6 b4 Nf6 bxc5 Rg8 Bb2 Rh8 Bd4 Ng8 Bf6 Qd6 Bh4 Qd8 Bg5 hxg5 f4 Kd7 Kf2 b5 Kg3 e5 d4 a6 h4 g4 a4 g5 h5 e4 d6 Kc6 d7 Kd5 f6 e3 f7 Ke4 c6 b4 f5 e2 c7 Ke3 h6 b3 h7 b2 c3 Bg7 f8Q Bh6 f6 Ne7 d5 Nbc6 d6 Ng6 f7 Na5 Nh3 Nb7 Na3 b1N Qb3 Nd2 Nb5 Nf4 Rb1 e1B+ Kh2 Rb8 Be2 Ne4 Bd1 Qf6 d8N Ne2 d7 g3+ Kg2 g4 Nd6 Qg7 Nc6 Rg8 d8R Be6 c8B Rh8 Rf1 Qg8 Kh1 g2+ Kh2 g1B+ Kg2 g3 Nf4 Bd5 Kh3 g2 Qb5 Bh2 Rb4 g1B Qe8 Bhg3 f8R B1h2 Rg1 Kf2 Rf5 Bh4 Rg3 Bf7 Rd3 Kg1 Rd7 Qg7 Qd8 Rg8 h8R Bhf2 Rh7 Bg5 Rh5 Rf8 Qba5 Bg8 Ne8 Rf6 Re7 Rd6 Be6 Rd4 Nd5 Bgd2 Bd7 Be5 Rf4 Bc7 Qb5 Ba5 Qbb6 Ra8 Qb8 Qg5 Q8a7 Rb8 Qa8 Rd8 Re3 Rd3 Re5 N4g3 R5e4 Qe7 Red4 Qe4 Bg4 Qg2+
bBr4N/brQbN1P1/2NbBr2/1R4Pk/2pR1n2/K1Q5/5qB1/2B1b1Bn w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 d4 a5 Kd2 f5 Kc3 Kf7 g4 Kg6 e4 h5 b4 c5 Kb2 c3+ Ka3 h4 d5 c4 e6 c2 b6 h3 b7 a4 d6 h2 e5 f4 e7 f3 e8B+ Kg7 e6 f2 g6 Qc7 g5 Ra7 b5 Na6 b8N Qa5 e7 Rh3+ Nf3 Nh6 b6 Nb4 d7 Nd3 d8B Qd2 b7 Nf5 Nc6 Ng3 b8B Rb7 Bf7 Rh8 Qe1 Bd7 Bg2 f1R Nc3 Qf2 Nh4 Nf4 Bb6 Rg8 Rg1 h1B Nd5 Rh8 Be6 Rg8 Ka2 a3 e8Q Bd6 Qc8 Rh8 Qc7 Rc8 Bgh3 Be4 Bg2 Nh1 Rb1 Bf3 Nde7 Bd5 Bd2 c1B Rb5 Bb2 Bc1 Bd4+ Qd2 Bc3 Qc2 Be1 Qd2 Kh8 g7+ Kh7 Nhg6 Be4 Ka1 a2 Kb2 a1B+ Ka2 Bc3 Nh8 Ba5 Bc5 Bb6 Ka3 Ba7 Qc3 Rb6 Nd8 Ba8 Ndc6 Rb7 Bgh3 Qe2 Rg4 Rf3 Bg2 Qf2 Ng8 Nh3 Rd4 Nf4 Nf7 Kg6 Nge7+ Kh5 Nh8 Be5 Bb6 Bd6+ Nb4 Nd3 Be3 Qd2 Rg4 Be5 Nbc6 Rf6 Re4 Qc2 Bc1 Nf4 Bg1 Qf2 Rd4 Bd6+
rQK1rQ2/br1RRP2/kb5p/B5N1/4QRbR/1qB3Rb/2b1n2P/4N1n1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f4 Kf7 f6 g6 Bd3 Ke6 f7 Kf6 f5 Ke5 f6 Ke6 Bf5+ gxf5 Kd2 Kd5 Kd3 a5 c4+ Ke5 b4 d5 g4 a4 c6 Kd6 Kd4 Kc7 Ke5 Kb6 c5+ Ka7 c7 f4 b6+ Ka6 b5+ Ka5 c6 e6 b7 d4 g5 d3 g6 f3 g7 a3 b6 f2 Nh3 f1B Qe1+ d2 Bb2 a2 Na3 Ra7 Rd1 a1B Nc2 Be7 f8R h6 f7 Qd3 Rd8 Nf6 g8R Ne4 Rd4 Ka6 Rg3 Nc3 Ng5 Bh3 Rf1 Bf6+ Kd6 e5 Qe3 Nd7 b8B e4 b7 Ne5 Rfe1 Bcd7 c8Q Nf3 Bc7 Ng1 Ba5 Bdf5 Qf3 e3 Kc7 e2 Rh4 Bfg4 Kb8 Qd5 c7 Qb3 Qd8 Rg8 c8R Rf8 Rf1 e1R Rc7 Re7 Qf5 Nce2 Qe4 Rg8 Be5 Bd4 Rf4 Rd7 Qe8 Bd8 Kc8 Ra8+ b8Q Ba7 Ne1 Rh8 Qe7 Rf8 Bec3 Re8 Rc1 d1B Qf8 Bc2 Rd1 Re6 Rd5 Re8 Re5 Qb2 Re7 Qb3 Rc5 Rb7+ Rcf5 Rd7 Rd5 Rb7+ Rdd7 Bdb6+
n2r1Qr1/3Pp1R1/nrQ2N1P/K2b1Rrr/1bQ5/4RNBq/4R3/kB3b1R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 d4 Kf6 Kd2 g5 f4 c5 a4 b5 h6 c4 h7 g4 h5 g3 a5 b3 Kc3 g2 Kb4 c3 h6 c2 d6 b2 d7 Qe8 d8R Ba6 d5 Nd7 d6 Nc5 Qd3 Bg7 Ra3 Qh5 Nc3 b1B Qc4 Qh3 Nf3 g1R Bd3 Ba2 d7 Rb8 Rc8 Rg5 Be3 c1R Bb1 Rd1 Bf2 Rd5 Bg3 Bb3 Rc7 Rd8 Ra2 Re5 Re2 Ba2 Qe4 Bd5 Qc4 Ne6 Ra7 Nc7 Re3 Na8 Ne4+ Kf7 f6 Ke6 f7 Nf6 f8R Ne8 Re2 Nec7 Nf6 Rg8 h8R Kd6 f5 Rh5 Kb3 b4 Ka4 b3 Rh7 b2 Rb7 Bh8 Rb3 Rhg5 Rg7 Bb5+ Ka3 Na6 Rbe3 Rh5 Nh7 Rg5 f6 Ke6 f7 Rh5 Bd3 b1R Nf6 Rb2 Bb1 Kd6 Qa4 Kc5 Qf4 Bd3 Ka4 Reg5 Qg4 Rb6 Qf4 N6c7 a6 B3c4 a7 Na6 Qe4 Bd3 Qe6 Kc4 Ka5 Kc3 Qc6+ Kb3 Qc4+ Ka3 Nd2 Kb2 Nf3+ Ka1 Qb3 N8c7 a8Q B3c4 Qc6 Na8 Rb2 Bf1 Rbe2 Rg4 Qbc4 Nb8 Rg5 Na6 Rf5 R8g5 Rg8 Bg7 f8Q Bh8 Ne8 Be5 Rg7 Bd6 Nf6 Bc5 Rf7 Rg8 Rh7 R4g5 Rg7 Bb4+
NN2n3/2pr1Q1B/q1RB1NQ1/1k3nKP/Nn1Rb2b/3r3r/4r1Pr/R6N w - - 0 1 illegal: No proof kernel
rBk3B1/1p4NQ/1K1rPN2/R3q2b/2N3P1/b1n1RR2/1N1nr1N1/Q1nr2r1 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Ke3 f5 Kd4 h5 g4 b3 e4 f4 a4 b2 a5 f3 e6+ Ke8 a6 h4 g6 h3 e5 h2 g7 f2 d6 c6 Kc5 Nf6 g8Q Nh7 d4 Ra7 d5 Qh4 e7 Kd7 e8N Bg7 Nf3 Ng5 Qh7 Qh3 Ne1 Nf3 Ra5 Nd2 Kb6 c5 Ng2 c4 Nc3 Nc6 Na4 b1R+ Nb2 c3 Bc4 c2 Re1 f1R Re3 Ra8 a7 h1R Nf6+ Kd8 d7 Qh5 Rf3 Rf2 Qe1 Re2 Qf1 Rb8 a8N Bf8 Ba2 Na7 Qd1 Ne4 Bf4 c1N Qa4 Qh2 Bb3 Nd2 Qa1 Rg1 Ba2 Qh6 Bh2 Qg7 Bg3 Ke7 d8N Bf5 Ne6 Rd8 Re3 Bg6 d6+ Kf7 d7 Ke7 Bd5 Nb5 Bf4 Bh5 Bc4 Rb8 d8R Nc3 Rdd3 Rd8 Rf3 Rd5 Rde3 Rd4 Nc5 Kd8 Bg8 Rd5 Ne6+ Kc8 Bh2 Qg5 Ng7 Ba3 e6 Rd8 Bb8 Rd6+ Ka7 Qe5 Nb6+ Kd8 N6c4 Kc8 Rd5 Nd3 Rb5 Rbd1 Ra5 Nc1 Bf7 Rd4 Bd6 Rf8 Bg8 Kd8 Bc5 Kc7 Be7 Rb8 Bd6+ Kc8 Kb6 Ra8 Bb8 Rd6+
2r3nr/1p3n1P/1K1n2Bk/Q3B3/NB4R1/bNn2B1b/P2RNr1B/Q1q1n3 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 f5 Ke3 Kf7 Kd4 g5 h4 Kg7 e4 c6 h6+ Kh7 d6 f4 Kc5 b3 d4 f3 h5 f2 d5 g4 e6 g3 e7 b2 e8B g2 e5 Ra3 e6 Rh3 e7 Qc7 d7 Rh4 d8Q Nf6 d6 Rd4 d7 Ng4 Ne2 g1R Nbc3 b1N Rh4 Rd3 Bg2 f1N Na4 Nfe3 Ba3 Nc3 Bb4 Nf6 Bf3 Rd2 Rg4 Nf5 Rb1 Nd6 Rb2 Rf1 Qa1 Rc2 Bf7 Rfc1 e8N Ng8 Ng7 Rf1 Be8 Rf2 Ne6 Rc1 Qg5 Rc2 d8B Nd7+ Kd4 Ne5 Kc5 Bd7 N6d4 Nef7 Nb3 Qc8 Kb6 c5 Bc7 c4 Qa5 Be6 Rg6 Bh3 Rg4 Nd1 Ng3 Nb5 Nd2 Nd8 Ne2 Rc1 Bh2 c3 Bd5 c2 Bf3 Qc4 Bc3 Ba3 Bce5 Qc8 Bd6 Qc3 Bb4 Nd6 Bec6 N8f7 Nb3 Qe1 Bb5 Qf1 Ba6 Rb1 Bb5 c1N Bc4 Nd3 Rd2 Rc1 Bb5 Rc8 Be8 Nfe5 Bf7 Nc3 Be8 Qc1 Bf7 Ne7 Be8 Ne1 Bg6+ Kg8 h7+ Kg7 Qa8 Rhd8 h8B+ Kh6 Qa6 Nef7 B8e5 Rh8 Qa5 Ng8 Ka7 Nf6 Kb6 Kg7 h6+ Kf8 h7 Kg7 Qc5 Kh6 Qa5 Ng8
2Q3b1/2nNK1k1/1n1b1pBR/1qNQ2rb/Q7/Bnrn4/r1PRQ1PR/6Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 h5 Kd3 d5 b4 a5 e4 a4 e6 h4 b6 a3 b5 h3 e5 a2 e7 f6 g6 h2 g7 Kf7 e6+ Kg6 e8Q+ Kh7 e7 Qd7 b7 Qc6 b6 Bh3 Nf3 Nd7 b8Q Be6 b7 Nb6 Ba3 Qd7 Qbc8 Qb5+ Qc4 Bf7 b8Q Kg6 Nbd2 Rh3 Rb1 a1N Ne4 Nb3 Qbc8 Rh5 Be2 Rg5 Qg1 Ra7 Qed8 Kh6 e8Q Ne7 Qed7 Bg8 Nc5 Ra8 Ne5 Ra6 Bb2 Ra2 Rd1 Kh7 Bh5 Kh6 Ke2 d3+ Ke3 d4+ Kf4 d2 Bg6 d3 Ba3 Ned5+ Ke4 Be7 Qe6 Bf8 Ned7 Bd6 Qa4 Nc7 Qde7 Nd4 Qd5 Nb3 Re1 d1R Re2 Rf1 Rd2 Rf3 Qee8 Bf7 g8R Be6 Rg7 Bg8 Re7 Rfg3 Re5 Kg7 Rf5 Rf3 Rf4 Rh3 Rh4 Rf3 Rh6 Rfg3 Re2 d2 Qee5 d1B Rd2 Bh5 Qee8 R5g4+ Kf5 Rc3 Qe2 Na6 Bf7 Rg5+ Ke6 Bf4 Ke7 Nc7 Qgd1 Be5 Bg6 Bf4 Rg1 h1N Qdf1 Nf2 Rh1 Be5 Qg1 Nd3 Rh2 Bd6+
2R2n2/1n3B1P/2QpQPN1/N1bB3q/3k1K2/2Rn1n2/b1r2Nrr/1N1bB1N1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 Kf6 b4 Ke5 c4 g5 f4+ Ke4 b6 a5 f6 e5 h6 d6 b7 a4 h7 a3 f7 a2 f5 g4 c5 g3 c6 d3 f6 g2 h5 Na6 b8N Qe8 h6 Ra7 c7 Qd7 b5 Qc6 b6 Kd5 Ke3 e4 b7 d2 Kf4 e3 Rh3 e2 Qe1 d1B Rc3 Be6 c8B Qb5 Bd2 Kd4 Nd7 Beb3 b8N Qh5 Nc5 Rc7 Ne4 Ne7 Nf2 Nc5 Be6 Nb7 Bd5 Bg7 f8Q Ng6+ Kg3 Bc4 Qe8 Nf8 Qc6 Rg8 h8N Bcb3 h7 Bh6+ Ng4 Be3 Ng6 Bf2+ Kf4 Bc4 Nh3 g1N Bf7 Nf3 Bg2 Bg1 Ngf2 Bcb3 Na3 Bd5 Rac1 a1R Nb1 Ba2 Bh1 Ng5 Bhd5 Nf3 Nd7 Rg7 Nb6 Rc8 Nc4 Rg8 Nh8 Rg2 Ng6 Rc7 Na5 Rh2 Qf1 e1N Qe2 Rc8 Qe6 Nd3+ Kg3 Bab3 Be1 Ra2 Ne4 Be3 Nef2 Rc2 Ng1 Ba2 Qcd7 Rc4 Qb5 Rb4 Rc8 Rbb2 Qc6 Re2 Rc3 Rbc2 Qed7 Bc1 Qe6 Ba3 Bg8 Bc5 Bf7 Nb2 Kf4 Red2 Nh1 Rdg2 Nf2 Nd3+
3r3n/1BkBBrPK/pb2Q3/nR1n3b/N3r1N1/4B1P1/bR1Rr3/1B4Qq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 h5 Kf3 d5 Kf4 Kd7 Kf5 h4 b4 a6 c4 h3 e4 h2 c5 f6 Kg6 d3 c6+ Kc7 e6 f5 e7 d2 e8B f4 g3 f3 b6+ Kd6 c7 d4 b7 f2 e5+ Kd5 b5 d3 e6 Kd6 e7 Bh3 c8B Bg2 b6 Nc6 b8B+ Qc7 b7 Na5 Ra2 Bd5 Rb2 Nh6 Nc3 Ba2 Nh3 Nf7 Bed7 Rh4 e8Q Re4 Na4 Nh8+ Kh7 Bh6 g6 Be3 Rg1 h1R g7 Rh2 Rg2 Bd4 Qe1 d1B Be3 d2 Bd3 f1R Qg8 Bh5 Nf2 d1N Bb1 Bc5 Ng4 Nc3 Rgd2+ Nd5 Ba7 Rf8 b8R Re2 R8b5 Rb8 Bb7 Rbd8 Bb8 Bb6 Qf2 Rf6 Qe8 Rf7 Ba7 Qc1 Qe6+ Kc7 Qe1 Bd4 Bc5 Qd1 Be7 Bb6 Qf2 Qg1 Qh2 Qg2 Qg1 Qh1
1Q3N2/B1RPK2B/b3nrNq/r1R1PQ1N/3kbR1n/br2r1NN/5n1p/8 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 a5 e4 h5 d4+ Kb6 b4 c5 g6 c4 g5 a4 g7 f3 d6 h4 d5 a3 d7 c3 Ke6 h3 e5 h2 d6 c2 g6 f4 Nc3 f2 Qg4 f3 Nh3 a2 Qf5 Bb7 Ne2 Na6 Ng3 Qb8 d8R Qc7 Rc8 Qd8 Bd3 f1R Rc5 f2 Be3 Qg5 Rc1 Nf6 g8N a1R g7 Ra3 Ne7 Ng8 Ng6 Ne7 g8N Qh6 Nf6 Be4 Nfh5 Rb3 Rg1 Re1 Rf1 Nc7+ Kf7 Ra5 Kf6 Kb7 b6 Ne6 b5 Re2 Bd4 Re3 Kf7 Rh7+ Ke8 Rf7 Kd7 Ka8 b7+ Ka7 b8N Kb6 Ke8 Rf6 Nd7+ Ka7 b6+ Kb7 Rb5 Kc6 Bc5 Kd5 b7 Ra8+ b8Q Ra5 Rfd1 f1B Ba7+ Nc5 Rd2 Kd4 Rf2 Be2 Rf4 Bf1 Nb6 Ne6 Rc5 Be2 Nd7 Bf1 Re1 c1N Bb1 Nd3 Rec1 Nf2 Bc2 Bg7 Ndf8 Bb5+ d7 Ba6 Nh8 Ng6 Bb1 Nh4 Nhg6 Qh8 Ke7 Bh6 Bc2 Bg5 Bd3 Qh6 Rc7+ Kd5 R1c5+ Kd4 Rg4 Rf3 Bb1 Bc1 Rf4 Ba3 Nh8 Ke3 Qg5 Ba8 Bh7 Be4 Qf5 Kd4 Nhg6 Rfe3
Qr2N1bB/P1nr2B1/qB1PQN2/n2n4/7k/1r2b2B/2bRQK1p/1B2R1r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 g4 c5 a4 e5 f4 h5 f6 Kg6 f5+ Kh7 f7 b5 g6+ Kg7 g5 h4 d6 e4 d5 c4 a5 b3 d7 b4 a6 b2 a7 e3 d6 c3 Nh3 e2 Kf2 e1R Rh2 c2 Nd2 b1B Nf4 h3 Ne4 b3 Qe2 b2 Nf6 Rh6 N4d5 Ne7 Nc7 Na6 Be3 c1N Bb6 Qe8 d8B Nd5 Rg2 Qc6 Nce8+ Kh8 Bd4 h2 B8b6 Bc2 Bc3 Be7 f8B Nb3 Rd1 b1R Rd2 Qd7 Rg1 Nac7 Bh3 Rb8 Ba1 Rec1 Re1 Qb5 Nh5+ Nf6 g7+ Kh7 g8B+ Kh8 g6 Rh7 Rh1 Na5 Ba2 Rb3 Bb1 Qa6 g7+ Kg8 Rhd1 Kf7 Bb2 Be6 Rg1 Nfd5 f6 Nb4 Rh1 Kg6 g8Q+ Rg7 f7 Kg5 B2d4 Kh4 Ba1 Rh7 Bh8 Bg5 Qg6 Rh6 Qf5 Rf6 Bfg7 Bf4 Qfe4 Re1 Qa8 Nbd5 f8Q Rf7 Qg8 Rd7 Nhf6 Bh6 Qf7 Rc1 Qe7 Bg8 Q7e6 Re1 Rg1 Rd1 Rg2 Rh1 Rg1 Bf4 Rc1 Rg1 Re1 Be3+
kbbr1RRq/1n3N1b/1B4BK/3b4/p1P3b1/3n1R1N/QrRP2QB/qR6 w - - 0 1 illegal: No proof kernel
3bq2N/2B1n1nb/BKBNn3/2Rp2k1/r1B1n1q1/1Q1R1P2/2rP1N2/1n1B2Q1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 a5 g4 e5 g5+ Kf7 b6 h5 Kb5 e4 c4 a4 c6 d6 c7 e3 f6 Kg6 f3 e2 f7 e1Q c5 h3 c6 h2 b7 h4 Ra3 h3 Bc4 Qee8 Rd3 a3 Nc3 a2 Ne4 a1N Bb2 Be7 Kb6 Ra4 Be5 Na6 b8Q Bf5 f8N+ Kh5 g6 d5 g7 Nc2 Nd6 Bh7 Ng6 Qdd7 c8B Qg4 c7 Bd8 Bb7 Ne7 g8B Kg5 Bc6 Na3 Qa7 Nc5 Qb3 Nb1 Bf7 Qed7 Be8 Ne6 Bg3 Rf8 Nh8 Rf4 Bg6 Ra2 Be8 Rc2 Ba4 Qc8 Bec6 Qd7 Kb5 Qe8 c8B Re4 Ba6 Rd4 Ne2 Re4 Rc1 h1N Nc3 h2 Qg1 Nf2 Nd1 h1N Bh2 Rd4 Be5 Ne4 Nf2 Nc7+ Kb6 Nhg3 Nb7 Ne6+ Bc7 Nh5 Nd6 Rc3 Qa2 Nhg7 Bd1 Rc2 Qb3 Rb2 B4b5 Rb4 Rc5 Ra4 Bc4 Rc2
3k1K2/1q1B2q1/Bq3PNq/3R1Q1n/1B2pRNB/1nb5/Pr1QR3/2q1B1rb w - - 0 1 illegal: No possible last move, all moves rejected
Bnb2r2/2qkrBR1/QpN1nq2/Rr6/BPrB1P2/4brBQ/N3R3/7K w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 gxh4 Qa4 Nh6 Qxa5 d5 cxd5 Ng8 Qa4+ Nd7 Qa7 Nb8 b4 c5 f4 h5 Kf2 e5 g4 b6 Kg2 c4 a4 c3 d4 c2 a5 e4 g5 e3 d6 e2 d7+ Ke7 g6 e1Q f6+ Kd6 d5 Qde7 d8Q+ Bd7 a6 Q7e5 f7 Bg7 f8R Bf6 g7 Qd1 Be3 c1R Bb5 Nh6 g8B Rh7 Bf7 Rc4 Ne2 Qdd4 Nbc3 Nf5 Rhg1 h3+ Kh1 h4 Na2 h2 Ba4 Ng7 Qc8 Ne6 Re8 Qc5 Rg7 Qc7 Qab7 Be7 a7 Qf6 Nd4 Bf8 Kg2 h1R Qa6 Rf1 Nc6 Rf3 Bd4 h3+ Kh1 h2 Re7 Nc5 Re3 Ne6 Re2 Be7 Qh8 Rh5 Qh7 Bc8 Qh6 Kd7 d6 Rb5 Qh3 Bf8 Ne5+ Kd8 d7 Ke7 d8B+ Kd6 Nc6 Kd7 Bf2 Bc5 Bg3 Be3 Be7 Qf5 Bc5 Qf6 Kg2 h1R Bd4 Rhc1 Kh2 R1c3 Kh1 Rcc5 Rd1 Re5 Rd3 Rc4 Ra3 Qh4 Bc2 Qf6 Ra5 Rh5 Ba4 Rh8 Rh2 Re8 Re2 Re7 Qh7 Bb7 Nd8 Nc6 Qh3 Rc8 a8B Nb8 Nc6 Rf8 Qh4 Bc8 Qg4 Qh6+ Qh3 Qf6
3R2N1/bb2rpn1/1R1q1N2/1nB1kNqQ/N1QNP2q/8/3QBP1r/qq4K1 w - - 0 1 illegal: No possible last move
rRNNk2B/QbP4R/1B2B3/4K2p/1b4N1/1q5q/rn1qP2B/qB1n2Qq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 Kd3 d5 g4 f5 c4 h6 b4 f4 e6 f3 b6 f2 c5 a4 b5 a3 b7 a2 g6 Ke7 c6 Qd7 g5 Qc7 g7 Qd6 b6 Na6 b8B Qg3+ Nf3 Rh7 b7 Qg1 g6 Qh2 Ba7 Rb8 Ng5 Qd6 Nf7 Nc7 Bh3 f1Q Nd8 Qg1 Bb2 Na6 Bb6 Ke8 e7 Qdh2 Nd2 Nf6 g8B Ne4 g7 Ra8 b8B Nc3 Nc4 Bb7 Bf5 Qh3+ Ne3 h5 Bge6 Qe1 Qa4 Nd1 g8Q Rh6 Rb1 a1Q Rf1 Qa5 Bh2 Nb4+ Kd2 d3 c7+ Qb5 Bh8 d4 Qa7 Qd5 Qg7 Qb3 Qg1 Rg6 Rf3 Rg5 Be4 Ra5 Rf7 Ra2+ Rb2 Nd5 Ng4 N5c3 Rh7 Na4 Rc2 Nab2 Rc5 Bd5 Rb5 Bc6 Ba5 Bd5 Rb8 Bb7 Bb6 Qe3+ Ke1 d2+ Kf1 d3 Kg2 Qd4 Kg3 Qe3+ Kh4 Qh3+ Kg5 Nf2 Kf5 d1Q Ke5 d2 Bc2 Qdc1 Be4 d1Q Bb1 Qdd2 Bg8 Kd7 e8N+ Be7 Bf7 Bb4 Nd6 Nfd1 Nc8 Qc6 Bd5+ Ke8 Be6 Qh1
Qr3RR1/1K2RR2/5nBk/2BR2n1/r1qN3r/Nb2Nq1b/QP1bp2P/1b6 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 a5 Ke4 g5 Kd5 Kg7 c4 e5 f4 g4 c5 d3 f6+ Kh7 f5 d2 c6 e4 c7 g3 b6 a4 f7 e3 f6 g2 h6 a3 b7 a2 Qb3 d1B Nf3 g1Q Nd4 Nc6 b8R Ne5 Na3 Bb4 f8R Qf2 f7 Bd2 Bd3+ Qf5 Be4 Qh4 Re1 Bc2 Rd8 d6 f8R Nf3+ Kc6 d5 Re2 Kg6 h7 Bb1 Qc4 Bd7+ Kb7 Kh6 c8N Ng5 Nd6 Qf3 Bg6 Bh3 Rf7 Qhf4 Rdf8 Nf6 Qa6 Q4g4 Ndc4 Qge4 Re1 e2 Ne3 Qc2 Rd1 Qc4 Rbd8 Rc8 Rdd7 Re8 Qa4 Re4 Rde7 Rh4 Qb3 Bc2 Rb1 a1R Qa2 Rg8 Nc6 d4 h8Q+ Nfh7 Rg1 d3 Rg4 Bb3 Rd4 Bc2 Rd5 Bb3 Nd4 Bc2 Qe5 Nf6 Qb8 Bb3 Qa8 Bc2 Qb3 Ra2 Ra1 Bb1 Qba4 Ba5 Qb3 d2 Qa4 d1B Bd2 Rh8 Bb4 Bb3 Bc5 Bd2 Rg8 B1c2 Rf1 Bb1 Q4a6 Qh5 Rf4 Qf3 Rff8 Nh5 R4f7 Nf6 Nab5 Ra4 Q6a7 Rb4 Qa2 Ra4 Na3 Ba5 Rb8 Bd2 Rgg7 Rf8 Rg8 Rd8 Kc6 Rd7 Rbf8 Rd8 Kb7 Rb8+
qr2NR2/b5RN/1R1q2nk/Qnbn4/1Q2B3/1PPb3n/4R1p1/1r1KQRB1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 Kf7 h4 d5 c3 a5 b6 e5 b3 g5 h6 a4 h5 d3 f6 d2+ Ke2 d4 f5 e4 b7 a3 h7 g4 h6 g3 Nh3 g2 Ra2 e3 Rc2 a2 Na3 a1Q Nc4 Ne7 Qe1 Nbc6 b8R d1N Rb6 Na7 Bd2 Rg8 h8Q Nf2 h7 Ng6 Bc1 Bc5 Nd6+ Kf8 f7 Nb5 Ng5 Ba6 Ne8 Qd6 Qe5 Nh3 h8R d3+ Kd1 d2 Bd3 Qa3 Rf1 Rd8 Nf6 Kg7 Ngh7 Kh6 f8R Rb8 Rf7 Rgd8 Ne8 Rd7 f6 Ra7 Ke2 d1N Rg7 Qa4 f7 Qe4 f8Q Qa8 Qd4 Rf7 Be4 Rf2+ Kd3 Re2 Qd5 Rf2 Ba3 e2 Kd2 Ne3 Kc1 Ngf4 Qe5 Ned5 Qfe7 Ng6 Rf8 Bd4 Bc5 Be3+ Qd2 e1B Kd1 Re2 Ra2 Bf2 Qe1 Rb2 Bd4 Qe6 Qb4 Qd6 Qf5 Bg1 Be5 Bc5 Bh2 Nbc7 Qe5 Bd3 Qf5 Bge3 Bg1 Nb5 Qe5 Rf2 Re2 Bed4 Re3 Rb2 Re2 Bf2 Qe7 Bfe3 Qa7 Bed4 Qaa5 Bf2 Ra6 Ba7 Rc6 Bfc5 Rb6 Rb1+
1Qr2Q1r/2BQ2K1/2n1bNQN/r1qB2Rn/2pb3k/3N1b2/5PRP/2q1r2Q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Kf4 b5 d4 c5 a4 g6 d6 b3 a5 e6 d7 b2 d5 c4 h6 b4 d6 b3 a6 Qa5 d8Q+ Ne7 d7 Bb7 a7 Qc3 h7 Qb4 Qc2 Bf3 Bg2 Qa5 Nh3 Bg7 Nc3 b1Q Rg1 Qc5 Ra5 Nc6 Qb8 b2 d8Q Qa1 Qdc7 b1B Qd7 Ng8 Bh1 Qb2 Rg2 Qba3 Bd2 Qc1 Qe4 Bd3 Be3 Bde2 Qeb1 Bg4 Ke4 e5 Nf4 Kg5 f6 Bd1 f7 Kh4 f8Q g5 Ncd5 Be6 Nd3 g4 Nf6 g3 Rb5 Be2 Bd2 Bh5 Ba5 Bd1 Bc7 Bh5 Qbe8 Rc8 a8Q Bd1 Qb8 Bdg4 Rg1 g2 Qg6 Be2 Rf1 g1R Bg2 Rh1 Rg1 B2g4 Bf3 Bh5 Rg2 Rd1 Qa1 Rd2 Qb1 Ra2 Qa1 Ra5 Qb1 Bd5+ Kf5 e4 Qa1 e3 Qb1 Q1a3 Qh1 e2 Be4 Qc1 Bf3 Bf7+ Bd5 Nd8 Ke5 Bf3 Kf5 Ne6 Ke5 Nf4 Kf5 Ne7+ Ke5 Rg8 h8N Be6 Nf7 Rh8 Nh6 Nh5 Rb1 Q1a3 Rbg1 Qc1 Rg5 Bf7 R1g2 Nc6+ Kf5 e1R Qh7 Be6+ Kg6 Bf5+ Kf7 B5g4 Qg6 Bh3 Ne8 Bd4 Nf6 Ng3 Kg7 Bhg4 Qb3 Be6 Qb8 Nh5+
8/1K1Qb1B1/RQ1n1b2/2rNq2B/qP1PN1pB/4q3/1qr2R2/Bk1nBbR1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 g5 Kc5 Ke5 h4 Ke4 f4 e5+ d6 a5 b4 a4 h5 g3 f6 a3 h6 g2 f5 g4 b6 a2 b7 Qd7 f7 Ne7 h7 Ra5+ Bb5 Nd5 f6 Nc3 Qa4 Nc6 b8B Ba6 Rh6 Nd8 Nh3 Nd1 Nf4 Be7 f8R Nf7 Nd5 g1Q+ d4 Qe3 Bb2 c6 Kb6 c5 Rg6 c4 Nbc3+ Kd3 Ne4 Qf5 d7 Nd6 Rc1 a1Q d8Q Qe6 Bd7 c3 f7 c2 Be8 Rc5 Qad7 Qa4 Ba1 Rg8 Rb1 c1Q h8B Kc2 Bf6 Bf1 Bh4 Qb2 Bc7 Rg7 Qb8 Qf5 Bd8 Rh7 Be1 Rh2 Rf6 Qfg5 Qbb7 Rd2 Rf2 Qh5 Rh8 Qhg5 f8B Qf5 Bh5 Qf6 Ng5 e4 Bg7 Qe5 Qa7 Qec3 Qac7 e3 Ne4 e2 Rh6 Qe3 Qb8 Kb3 Re6 Ka2 Rg6 Rdc2 Qbb7 Bf8 Bh4 Be7 Qa6 Nb5 Rc6 Nd6 Ka7 Bf6 Qa5 Be7 Ra6 Bf6 Qb6 Be7 Bc3 e1B Ka8 Bd2 Kb8 Bc1 Be1 Qeb3 Rf4 Be2 Bg5 Nf2 Bh4 Q3c3 Rf6 Bg5 Bd2 Qe3 Rg1 Nd1 Bde1 Bf1 Rf2 Bgf6 Ka7 Kb1 Kb8 Nc8+ Kb7 Nd6+
1KnNQb1q/n2NqR1b/R1Q2b2/rNn3nB/P6B/P4N2/1kN1p2Q/r7 w - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 bxa4 Be6 Qf3 Bd7 Qd1 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 h5 d4 b5 g4 e5 f4 c5 a3 b4 g5+ Kf7 f6 b3 f5 b2 d6 h3 Kd5 h4 d7 c4 Qf3 e4 Be2 e3 Nc3 b1N Nb5 Ne7+ Kd6 h2 Qc6 c3 d5 c2 Nf3 h3 Rg1 Qe8 Kc7 h1N d8Q h2 d6 Ra5 d7 Nf2 Rg3 h1Q g6+ Kg8 f7+ Kg7 Bd2 c1B Be1 Nh3 Rg2 Ng5 Bh4 Nd2 f6+ Kh6 g7 Kg6 g8N Bb2 Nh6 Nb3 Ng4 Kf5 Rf1 Nc5 Rh2 Ba6 Qc8 Kf4 d8N Rh6 Q8e6 Nc8 Qa2 Rg6 Bd1 Rg8 Rd2 Qe7+ Rd7 Bc3 Qh2+ Kf5 Be2 Bb7 Rd1 Ba8 Rd5+ Ke4 Bd1 Bd4 Rd6+ Kd3 Be2+ Kc2 Re6 Bg7 f8Q Kb2 f7 Bdf6 Qe8 Bh6 f8N Rg7 Bd3+ e2 Ne3 Rg8 Nc2 Bb7 Ng6 Bf8 Nge5 Qa1 Bg6 Ba6 Qb7 Nc6 Bh5 N6a7 Kb8 Rg7 Qe4 Bb7 Qc4 Be4 Ra6 Bh7 Qe6 Rg8 Qc6 Qh1 Rb7 Nge4 Bf7 Bf5 Be1 Rg1 Qg2 Qh8 Qh2 Ng5 Bh4 Bh7 Bh5 Qe6 Rf7 Ra1 Nd7 Qe7
KR2bR2/1Br3k1/1nn1Q2b/R1r3p1/5B1Q/r5P1/PN3rBB/qq2NB1b w - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 g5 cxd5 e5 fxe5 Qd6 h5 Qg6 hxg6 Kd8 Qc2 Ke7 Qd1 Ke8 Kf2 b5 Ke3 c5 Ke4 h5 d4 f6 e6 c4 d6 b3 Kd5 f5 e4 f4 d7+ Ke7 d8B+ Ke8 e5 h4 e7 f3 g7 Kf7 e6+ Kf6 e8Q+ Be7 Rh3 c3 Bf4 f2 Qg4 c2 Nf3 c1R Na3 b2 Rb1 b4 Nc4 b3 Bdc7 Bd6 e7 Rc2 Ne1 Nd7 Kc6 Ba3 d5 Nb6 d6 Bd7+ Kb7 Rh7 Re3 h3 Re5 h2 Qh4 h1B Ra5 Ba4 d7 Ra6 d8R Bb5 Nd6 Rc5 Nc4 Ba4 Qd7 Kg6 Qd5 Be8 Bh2 Bb4 g3 Bc3 Bg2 f1R Bf4 Rf2 Qe6+ Bf6 Rb8 Ra8 Rd1 b1Q Rdd8 b2 Rdc8 Qc1 Rd8 b1Q Nb2 Qa1 Rdc8 Qcb1 Rd8 Bf7 e8B Ne7 g8B Kg7 Bb5 Nc6 Rf8 Be8 Bbf1 Bc3 Rb5 Ra3 Ra5 Rh6 Bh7 Rf6 Bhe4 Rf7+ Ka6 Rc7 Bef3 Ne7 Bb7 Nc6 Qe5+ Kg6 Qe7 Bg7 Qe5 Ne7 Ka7 Bh6 Qf5+ Kg7 Qe6 Nc4 Ka8 Nc6 Qd5 Na7 Qe4 Nc6 Qe6 Nb6#
1k2q3/nn6/QR3RnQ/1B1K1PRp/q3Nb1R/4P1rQ/2N2Bbn/rr5R w - - 0 1 illegal: No proof kernel
5Q2/qbnnb1KR/N4qN1/3R1p1R/q3PN2/qB1r1P1n/1k3B1N/N5rQ w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Ke3 Ke6 Ke4 a5 g4 h5 c4 a4 c6 a3 c7 a2 g5 h3 b6 f6 c5 d6 c6 h4 b7 h2 f3 h3 g6 Be7 g7 Bd7 c8N Na6 b8N Rh5 c7 Ra7 Be3 Ra8 Na3 Rg5 Nc2 f5+ Kf4 d5 Bf2 d4 e4 d3 Ne2 Nf6 g8N d2 Nh6 Bc6 Ng4 Bb7 Rb1 a1Q Rb5 Qd7 Rd5 Qaa4 Na1 Qa3 Qb1 d1Q Qc1 Bd8 Ne7 Q1a4 c8Q Nc7 Ng6 Be7 Na6 Rb8 Qf8 Rd8 Rg1 h1Q Nh2 Qg2 Rh1 Qdd6 Qd1 Qg1 Qe1 Kd7 Qd1 Kc6 Qb1 Nd7 Qd1 Qdc5 e6 Kb5 Qe1 Kc4 Qb1 Nb6 Ke5 Qcc6 Nef4+ Kc3 Bc4 Rg4 Qf1 Kb2 Bb3 Rg3 Be1 Qe3 Bf2 Rg1 Qe1 Bd6+ Kf6 Nd7+ Kf7 Qa7 e7 Bc5 e8R Qf6+ Kg8 Bd6 Re7 Bb4 Rh7 Be7 Nf1 h2 Rh5 Rg4 Rg1 h1N Nh2 Rg5 Rg3 Rg4 Rgh3 Rg1 Rh7 Bc6 R3h5 Bb7 Bb6 Nf2 Be3 Rg5 Qh1 Nh3 Bf2 Rg1 Ra5 Nb6 Rb5 Rd3 Rd5 Qg5 Kf7 Nd7 Kg7 Qf6+
1BN3B1/1b2q2R/1RQB1Q2/2RbPb2/1bn2n1R/1q2K3/PrN3kp/1nRr4 w - - 0 1 illegal: No possible last move
1kq1QNR1/2n3R1/1BKq1R2/3rpB1P/2Br1q2/1QPbb3/qRn5/R4N1r w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 e5 Ke3 g5 Ke4 a5 Kd5 g3 b4 d6 h4 Kd7 f4 Kc7 c6 g2 h5 a4 c3 g4 f6 a3 f7 a2 f5 g3 f6 Na6 b6+ Kb8 b5 Rh6 b7 Bf5 Bc4 Bd3 Nh3 g1Q Be3 g2 Ng5 Qf1 Rg1 Qc8 Ne6 Qf4 Nd2 Rh7 Qb3 Nh6 Nf1 Nf5 Bf2 Bh6 f8R Rd7 f7 Nd4 Rg8 Nc2 f8R Rd8 Bb6 Bg5 Rb1 a1Q Rf6 Qa2 Nf8 Ra7 Rb2 Ra8 Rh1 g1R Rg7 Rg4 Ne3 Rh4 Ra1 Rh1 Nf1 Qfg4 Bg1 Be3 Bf2 Qf4 c7+ Ka7 Kc6 d5 b8R d4 Bg1 Rd5 Bf2 Qcf5 c8B+ Nc7 Be6 Q5g4 Re8 Rad8 b6+ Kb8 b7 Qh3 Bf5 Qhg4 Bg6 Qc8 Bg1 Be4 Bh7 d3 Bf5 d2 Bf2 d1Q Bg1 Ba7 Bb6 Qdd2 Rg8 Bd3 Re7 Rd4 Reg7 R8d5 Bb5 Rc4+ Bc5 Be2 Bd7 Rd3 Bf5 Bb6 Ba6 Ka7 Bb5 Re4 Qf7 Ra4 Qe8 Ra5 Ba3 Be3 Bc4 Rd8 Be7 Qdd4 Ba3 Bd3 Bb4 Rb5 Ba5 Rd7 Bd5 Qb4 Bc4 Rd4 b8Q+ Ka6 Bb3 Rbd5 Qb5+ Ka7 Bc4 Qba3 Bb6+ Kb8 Qb3 Qd6+
qKN1Rb1n/3bb1k1/2N2q1r/1R1P1rr1/3n3p/B2r2Q1/Q2Q1PRQ/1B2Q3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 a5 Ke4 h5 Ke5 c5 b4 e6 g4 h3 d4 a4 d6 c4 f6 h4 d7 c3 g5 h2 b6 a3 b5 c2 b7 a2 b6 Na6 b8Q Rh7 b7 Rh8 Bd3 Bh6 Kd6 e5 g6+ Kf8 f7 e4 Qe1 e3 Nf3 e2 Na3 Bg7 Rg1 h1R Rb1 a1Q Ne5 Nc5 Rb5 Ne7 Nc6 Rh3 Nc4 Nb3 Rg2 Ra5 Nb6 Rh6 Ba3 c1B Bb1 Rd3 Qc7 Bd2 b8Q Bg5 Qba7 Qe8 d8Q Bd7 Nc8 B5f6 Qcb8 Qc3 Kc7 Qb2 Rb6 Rg5 Rb5 Rf5 d5 Nd4 Qaa5 Rg5 Qad2 Qc3 Qa2 Rf5 Qed2 e1R Kb7 Qa1 Qh2 Ree5 Q8a5 Rg5 Qe1 Ref5 Q5d2 Qd8 Nd6 Qa8+ Kc7 Bh8 Nc8 Kg7 f8R Ng8 Rb2 Be7 Re8 Bf8 Rb5 Ne7 Qeh1 Kg8 g7 Ng6 Qhe1 Kf7 g8Q+ Kf6 Qge6+ Kg7 Q6e2 Kg8 Bb2 Nf3 Na5 Bf6 Qee5 Kg7 Nc6 Nh8 Ba3 Qd4 Qeg3 B6e7 Qab2 Qf6 Qa2 Qa5+ Kb7 Nd4 Kb8 Qa8+
3b1Qq1/2q1Q3/B1q2B1R/2BPNbq1/p1n2N1n/1BPR1rNK/1k3r2/6bB w - - 0 1 illegal: No proof kernel
3R1Bqk/b6N/1R1q1b1B/n1PB4/2Nn3Q/Qbr2nrP/2p1Q3/B2bKB2 w - - 0 1 illegal: No proof kernel
N1R1B1R1/1RQr4/2Q1Kbrr/R1P2q1b/2rp2P1/6nk/b1q1NRnB/3B4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 d3 Ke3 Kf7 Kf4 e5+ Ke4 h5 Kd5 a5 b4 e4 c4 a4 f4 h4 f6 Kg6 b6 Kf5 b7 h3 g6 h2 g3 e3 g7 e2 f7 Kg4 c5 a3 b5 a2 b6 d2 f5 Rh7 f6 Ra4 Nc3 Nc6 b8Q Na5 b7 Nh6 g8B Nf5 Nb5 Nc4 Nc7 Bg7 f8R Nce3+ Ke5 d5 Bf7 d4 Na8 Rb4 Qc7 Be6 b8R Qd7 Qa4 d1B Rbc8 e1Q Rg8 Qc3 Be8 Ng2 Bf4 Qc2 Rb1 Bf3 Be2 Bb3 Qa6 Rc4 Qab7 Qf7 Qe4 Qh5 Kd5 Qg6 f7 Be5 f8R Bh8 Rf6 Rd7+ Ke5 Qg5 Bd1 Bg7 Ne2 Qh5 Rf1 h1R Rb8 Qg6 Rf2 Rh6 Rb2 Kh3 Rc8 Bh5 g4 a1R Bh2 Ra6 Rb1 Ba2 Rb7 Ng3 Qd5 Bf8 Rfb6 Qgd3 Rb5 Be7 Ra5 Rag6 Qdc6 Bf6+ Ke6 Qf5+
b1Q1N1b1/2q3r1/1n2nq2/2p3n1/R1K1P1B1/3RR1nQ/BbPNB3/1B1Bk1r1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 f4 Qd8 fxg5 h6 g6 Ra6 g7 Ra8 g4 Be7 g5 Bc5 g6 Bf8 Bg5 hxg5 Kd2 Ke7 Kc3 Ke6 e4 f5 h4 b5 a4 d5 h5 c5 h6 d4+ Kd3 f4 a6 f3 a5 g4 h7 g3 a7 g2 a6 b4 Ra4 b3 Nd2 f2 Ra5 b2 Nc4 b1B Qh5 Nd7 Ra4 Nh6 g8B+ Nf7 g7 Nb6 Nd6 Ba2 Rh3 Qc7 Re3 Bb7 Be2 f1N Nf3 g1N Ne8 Nh3 Nd2 Ng5 Ra3 Rc8 a8R Ng3 a7 Rd8 Ra4 Rd7 Rd8 Ba8 Bd1 Be7 Qh6+ Bf6 Qh3+ Ke7 Be2 Ne6 Bg4 Nfg5 Bd1 Nf8 Be6 Rg8 Beg4 Nfe6 h8Q Kf7 Bge2 Kg6 Bg4 Nf7 Bde2 Kg5 Bd1 Kf4 Bge2 Bb7 a8B Nfg5 Bg4 Bc6 Bb7 Bcd5 Ba6 Ba8 Bb5 Rf8 g8B Rg7 Bf7 B2d5 Bc4 Rfg8 Ba2 Bb3 Bfh5 Bbd5 Bge2 Bb3 Bb1 Ba2 Nf3 Bb3 Bg4 Ba2 Kd2 d3 Kc3 d2 Rdd3 Nf5 Q3h7 Kg3 Qh6 Kf2 Qh3 Ned4 e6 Ng3 e7 Bb3 Nh2 Ke1 Nf1 Ba2 Q8h6 Be5 Qc6 Bf7 Qb7 Nde6+ Kb3 Bb2 Qc8 Rf8 Bgf3 Bg8 Bg4 Nd7 Kc4 Rf2 Nd6 Rg2 e8B Rg1 Bf7 Nb6+ Kb5 Nd8 Bc4 Nde6 Ne8 Qd8 Bca2 Qf6 Bef3+ Kf2 Bde2 d1Q Nd2 Qf1 Bd1 Qe7 Bfe2 Qc7 Qh7 Ke1 Qh3 Nd7 Kc4 Qff4 Kb5 Qf6 Kc4 Nb6+
2qbQnR1/1BkN1rnR/1N4R1/QP1n1QR1/1r1bK3/Rpq1B3/7P/1b5n w - - 0 1 illegal: No proof kernel
nn5R/3RQ1r1/BQq2P2/K1Nr2n1/2br1p1N/Q1qrP1k1/Q1RQ4/b5B1 w - - 0 1 illegal: No proof kernel
4B2N/5B2/B1qrnp1B/1Q1P3R/K3q1Rr/1B2r1bk/1n2N1rP/RQq4b w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 Kd7 a4 b5 d4 c5 Kd2 g5 Kc2 g4 Kb3 c4+ Kb2 g3 a5 f6 d6 Ke6 h6 b3 Ka3 g2 h7 b2 a6 c3 a7 b4+ Kb3 c2 d7 Bd6 Nh3 g1R Ba6 Rg2 Rg1 Qe8 d8Q Qc6 Qb6 Nd7 Qb5 Bb7 Bh6 c1Q Nc3 b1R+ Ka4 b3 Ne2 Rd8 a8B b2 Qf1 Nf8 Nhf4+ Kf7 Qd1 Ne7 Ng6 Ne6 Qe1 Rhe8 h8R Nf5 Qf1 Ne3 Qf5 Rf2 Rg4 Rg2 Qf1 Nc4 Rh7+ Ng7 Nh8+ Ke7 e6 Bg3 e5 Rd6 Ra3 Ra1 Qf5 b1Q Qe4 Kd8 e7+ Kd7 Qg6 Qe4 e6+ Kc7 Qf5 Rb1 Ra1 Rb3 Ng6 Rh8 e8B Re3 e7 Ne6 Bf7 Kd7 Qf1 Rg8 Nh8 Rg7 Rf4 Rg4 e8B+ Ke7 Qd1 Rh4 Rg4 Qb6 Qc2 Qf4 Bg6+ Ng7 Rg5 Ke6 Qa5 Rf2 Bh5 Nd2 Qb5 Bh1 Qcb1 Rg2 B8b7 Qe4 Bd5+ Ke7 Bhg6 Qbc6 Bb3 Nc4 Rh5 Ke6 Bg5 Rd8 R7h6 Rd6 d5+ Ke5 Rh7 Ne6 Bgf7 Kf5 Rg7 Kg4 Bh6+ Kh3 Rg4 Nb2+
3R3N/1qR5/1RbPN3/2KP1rb1/N1r1N2k/r3Qbq1/NQ3np1/1b1nBB2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 h4 Kf6 d4 c5 e4 g5 b4 a5 d6 f3 Ke3 g4 d5 a4 h6 a3 h5 Kg5 h7 f5 e5 f4+ Kd3 f2 Kc4 a2 b6 g3 e6 g2 b5 Ra3 h6 Nf6 e7 Bb7 e8N Qc7 Nd2 f3 Ne2 Ng4 Qe1 Na6 Rh3 Bc6 b7 Be7 b8Q Qb7 b6 Nc7 Nc3 Nb5 Na4 Rf8 h8R Nc3 h7 Nd1 Ng7 Rf5 Rb1 a1Q Rd8 Qe5 h8N Qg3 Rh7 Bf6 Bb2 Be7 Bc3 Bf6 Nh5 Kh4 Qe3 Be7 Ne4 Bg5 Bd3 f1B Rc7 f2 Nf4 Be2 Be1 f1B Ne6 Ngf2 Rb2 Qa7 b7 Bf3 Rb6 B1e2 Qc8 Bf1 b8N Qb7 Na6 B1e2 Nb4 Bf1 Na2 B1e2 Nd2 Be4 Nb3 B2f3 Bf1 Bb1 Qb8 Nb2+ Kc3 c4 Kd4 c3 Kc5 c2 Nd2 Nbd1 Ne4 Ng4 Qa7 Ngf2 Qa6 c1R+ Qc4 Rc2 Qcc3 Rd2 Qb4 Rd4 Qb2 Rc4+
3nQnb1/n4R1r/KbBP2Pq/1N2N2p/6RN/Bn2kNq1/1q4Rr/4NQ2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 d4 h5 b4 a5 f4 c5 f6 e5 b6 h3 Kb5 c4 g5 c3 f7 c2 b7 h2 f5 a4 f6 a3 d6 a2 d7 Bh6 f8R Ra7 f7 Qf6 d8Q Qe7 d5 Bf5 d6 Rh7 Na3 Qf6 Qe8 Nd7 b8N Ne7 Nf3 Be6 Nc6 Nc8 Rg1 h1Q Bg2 Qh3 Ncd4 Qg3 Qf1 Bb3 Rb1 a1Q Rb2 Rc7 Bh1 Na7+ Ka6 Qg7 Ra2 Qb2 b5 Be6 b6 Rc3 g6 Be3 b7 Qh6 Nf5 Bb6 b8N Rd3 Rg2 Rd2 N5h4 Ke3 Nb5 e4 Nc6 Bb3 Nb4 Bc4 Rh8 Nf8 Ra4 Nd7 f8N Qa2 Re2+ Kf4 Ra3 e3 Ra4 Qb3 Rf2 e2 Ba3 e1N Nh2+ Nf3 Rg8 c1N Nc2 Qb4 Ne1 Qb2 Rg7 Nb3 Re2 Rd3 Rc2 Rd2 Rb4 Rf2 Bg2 Ng5 Bc6 Ne6 N2f3 Rh2 Rg2 Nd8 Re7 Ne5 Nd7 Ke3 Rg7 Bg8 Rg4 Ne6 Re7 Nf7 Nde5 Nfd8 Rf7 Nf8
3brr1b/2nb4/kN1p3q/2R3N1/1Q1P1bP1/1nr2B1R/q1B1KQB1/B1BQ4 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 f4 e5 c4 a5 g4 h5 c6 h3 f6 a4 d3 a3 b6 d6 c5 a2 f5 e4 b7 h4 c7 Kd7 f7 Kc6 f6 Kb5 c6 e3 Qb3+ Ka6 Nd2 h2 Ke2 h3 Ngf3 Ne7 Qd1 Nd7 b8Q Nc5 Ng5 Bh6 f8B Nb3 f7 Nd5 Nc4 Bd7 Bg7 Qg8 Qb4 Re8 f8Q Qe6 Qf5 Rhf8 Nb6 Qg8 Rb1 a1B Bg2 Bf6 Bh8 Bd8 Ba1 Bg7 d4 Bh8 Qf2 Qf7 Re1 h1Q Rb2 h2 Rc2 Qe6 Rc5 Qh6 Bf3 Qg2 Rg1 h1R c8B+ Ka7 c7 Rh3 Rh1 Rg3 Kd3 e2 Bb7 e1B c8B Nc7 Rh3 Bd2 Bd5 Be3 Ke2 Bf4+ Bde4 Qh2 Ba6 Qg2 Bd3 Qh2 Bc2 Ka6 Bg2 Rc3 Rg3 Q2h5 Rh3 Qf7 Bf3 Na5 Bg2 Qa2 Bf3 Nb3 Bg2 Bhe5 Bef3 Bh8+
1Bqr1RQ1/1b6/N2pP3/2b2N2/BrN1Qnq1/2kNqNbP/n6B/2b3KR w - - 0 1 illegal: No possible last move, all moves rejected
1kNb3Q/n2q3b/1pnn1BQq/3Br3/nB1N3r/1PBq3B/2RP4/2R1K2Q w - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Rh7 Qc2 Rh8 Qb2 axb2 f4 Kd7 h4 g5 a4 e5 a5 c5 h6 Kc7 f6 b6 h5 c4 a6 g4 a7 c3 h7 e4 f7 c2 h6 g3 f5 g2 f6 e3 Nf3 g1Q Nd4 e2 Ra2 Bf5 Nc3 b1N Bb2 c1N Ne4 Qg7 Bc3 Ne7 Nd6 Na3 Nc8 Nbc6 Rc2 Nb5 Bh3 Na2 d6+ Kb7 d7 Nd6 Rg1 Qe8 d8Q Qd7 Qe8 Rb8 a8B+ Kc7 Kf2 Na7 Rgc1 Nec6 Ke1 Be7 f8Q Bd8 f7 Rb7 Qg8 Kb8 f8B Qg5 Qgg6 Be4 Bb4 Nc3 Bg7 Na4 Bf6 Qe3 Qh5 Qd3 Qeg6 Re8 h8B Re5 h7 Rc7 Bhg7 Bf5 h8Q Be4 Qg1 Bh7 Qh1 Rb7 Qg6 Rc7 Kf2 e1Q+ Kg2 Qd1 Kf2 Qh5 Bb7 Qh6 Ba8 Rh5 Ke1 Rh4 Bb7 Ne7 Bd5 Rc5 Bc3 Rb5 Bf8 Nec6 B8e7 Ne4 Beb4 Nd6 Bg8 Rg5 Bd5 Re5+
2bNnR2/1qk1b2R/P2r2bN/2B2nP1/Nrq1BN2/q3Np2/6Q1/1Q2B1Kq w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 g4 b5 a4 f5 e4 h5 d4 c5 d6 b3 g6 h4 e6+ Kc6 e7 b2 e8N b4 g7 f4 g5 f3 d7 h3 a5 c4 d5+ Kb7 e5 c3 e6 c2 d6 h2 e7 b3 Nh3 Nf6 g8N Bg7 Nh6 Nd5 Nf6 Qe8 d8B Qf8 e8Q Nd7 Be3 c1Q Bc5 Qc3 Bd3 Rb8 Nf4 Ne7 Nfg4 Qc4 Nc3 b1Q Na4 b2 Ne3 Nf6 d7 Nf5 a6+ Kc6 Ba5 Rb4 Qf1 Qd6 Qg2 Bf8 Qg6 Be7 d8N+ Kd7 Rd1 h1Q Be4 Ne8 Qh7 Rg8 Rc1 Rg6 Re1 Qh3 Kg1 Qdd3 Rc1 Rd6 Qg6 Qa3 Rd1 Rb5 Be1 Kc7 Qh7 Rb4 Rd5 Nfg7 Rf5 Qh4 Rf8 Nf5 Qf7 Qh5 Qd5 Qf7 Qd1 Qbc1 Ra2 b1B Rd2 Bc2 Rd5 Qca1 Qb1 Qh8 Re5 Qfd5 Re6 Qb7 Rg6 Bd3 Rg7 Qh7 Nhg4 Qh6 Rh7 Qh1+ Kf2 Nh6 Bc6 Qh5 Kg1 Bg6 Be4 Nf5 Nh6 Qh1+
1q3Q2/N1Nr1BQP/K3n1B1/1r1P2B1/1R5N/1bRBrnp1/q3rk2/bB2n3 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 Kd3 g5 Kc4 f5 Kb5 f4 a4 b6 e4 g4 h4 f3 e6+ Kd6 h6 f2 h5 g3 h7 b3 h6 c4 e7 b2 e8B c3 a5 c2 a6 Ne7 a7 Ng6 Rh4 Ne5 Ra3 Nbd7 Bg5 c1N Nc3 Ncd3 Qf3 Ne1 Bf7 Nc5 Bd3 f1R Qf4 Be6 Nf3 Rc8 a8B b1Q+ Rb3 Rg8 h8Q Rg7 h7 Rf2 Qg4 Be7 Qf8 Qa2 Rb4 Rb2 Rh6 Rc2 Nh4 N5f3 Rf6 Re2 e5+ Kd7 Rg6 Bf6 d6 Qc7 Rh6 Re8 Bae4 Qb8 Nd5 Re7 Nc7 Re8 Qf4 Bb3 d5 Ne6 Bb1 Re7 Bed3 Re8 Qc1 Re3 Qa3 Re2 Ka6 b5 Rc4 b4 Rc3 Bd1 Rh5 b3 Bfg6 Rge7 Qg7 b2 Rh6 Bb3 Rh5 Kd8 d7 Rf7 Qa5 Ke7 d8N Kd7 Nc6 Rfe7 Na7 Re3 Bbc2 b1R Qa3 Rb2 Bb1 Rbe2 Na8 Rc8 Bf7 Rc5 Nc7 Rb5 Rc5 Nf4 e6+ Kd6 Rc3+ Ke5 Bfg6 Rf7 e7 Kd4 e8B Rd7 Bef7 Be5 Ng2 Ne6 Rh4+ Re4 Rf4 Bf6 Nh4 Ke3 Rg4+ Kf2 Rf4 R4e3 Rfc4 Qd2 Qaf8 Qc2 Rb4 Bd4 Rc6 Ba1 Rc3 Qa2+
2rN2R1/RQ3p1R/4qkPN/1q2n1b1/1B2QPQr/1r1BnQr1/1QqK2b1/8 w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 f4 Ke7 e4 h5 c4 d5 g4 a5 e6 h3 c6 h2 b6 h4 c5 h3 c7 a4 b7 d4 e5 a3 g5 d3 g6 a2 c6 Ra7 Na3 Nh6 Bd2 Nd7 b8Q Rb7 Nc2 Rb6 Ne2 Rb7 Ne3 Rb3 Ng4 Bb7 c8Q Qe8 c7 Rg8 Nd4 Bg2 Qf3 Nf5 Nh6 Ne3 Qcb7 Qc8 Bc3 d2+ Ke2 Qe8 c8Q d1R Ba5 Rdd3 Ke1 Rdc3 Kd2 Bg7 Ba6 Bf6 Bd3 Bg5 Bb4+ Rc5 Rhc1 h1Q Rf1 Qh2 Rh1 Qg3 Rh2 Qg4 Rhh1 h2 Nc6+ Kf8 e7+ Kg7 e6 Ne5 Qcd7 Kf6 Nd8 Rcc3 Qdc8 Qd7 e8R Qb5 e7 Qe6 Qcd7 Rh8 Rg8 Rc8 e8Q Rcc3 Rac1 a1Q Rc2 Rc8 Ra2 Qb1 Ra7 Rh7 Qg4 Rh8 Qbf3 Rh7 Qd4 Rh8 Qb2 Qc2+ Ke1 Rcc3 Qbb7 Rc8 Qec6 Rh7 Qce4 Rh8 Rf1 h1R Rg1 Rh3 Rh1 Qb1+ Kd2 Rg3 Nf5 Qa2 Rh7 Qaa4 Rhg7 Rh4 Nh6 Qa2 Rh7 Qaa4 Bd6 Qac4 Bb4 Qc2+
r6b/4P3/2rp2R1/R2qrkb1/P1BR2NQ/n1bbRN2/1N2qBR1/2nK1Q2 w - - 0 1 illegal: No possible last move
n3R3/1b2PBk1/2pQRqNq/bQ5Q/3Pq3/q1BB3N/n3Bb2/r2B1K1r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 e4 h5 b4 f5 d4 Kf7 g4 a5 b6 f4 b5 c3 g6+ Kg7 e6 a4 g5 a3 e7 a2 e8B h4 b7 c2 b6 c6 e5 h3 e6 h2 e7 f3 Nh3 Rh6 Bd3 f2+ Kf1 Na6 b8Q Qd5 b7 Qc4 Bf7 Qb3 Bb2 c1Q Qd6 Qa3 b8Q Nc7 Qb5 Nf6 Nd2 Nfd5 Bc3 Bb7 Nf3 Nb4 Nh4 Qc2 Rg1 h1Q Qh5 Qh2 Rd1 a1B Re1 Na2 Re6 Ra7 Be2 Qe4 Bd1 Na8 Rg4 Kh8 g7+ Kh7 g8B+ Kg7 g6 Rh8 Be1 Bc3 Bh7 Ba5 Bc3 Qhf4 Rf6 Qg5 Bc4 Ra6 Re6 Qh6 Bce2 Rb6 Qc4 Rb1 Rg5 Ra1 Rb5 Ba6 Rb8 Bb7 Re8 Qd2 Qhd5 Kh6 g7+ Qg6 g8B Bg7 Ng1 Be5 Bf7 Bg3 Qf3 Kg7 Qb5 Qdc1 Kg2 f1Q+ Kh1 Qg4 Bhd3 Rh5 Qfd5 Qf6 Kg2 Qch6 Ng6 Bf2+ Kf1 Rh2 Nh3 Qe4 Qh5 Rh1+
R1nk4/4pK1r/BN3QNP/q4qN1/1b2b2N/3nP2Q/rrQNn3/3B1R1n w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 Kf2 a5 Kf3 c5 Ke4 f5+ Ke5 a4 d4 f4 h4 c4 d6 a3 d5 a2 b4 g4 b6 c3 h5 c2 e3 c1Q b5 f3 h6 f2 b7 g3 b6 g2 Nd2 Qc2 Ngf3 g1N Nh4 Nd7+ Ke6 Ra7 b8Q Ne2 b7 Qa4 Qc2 Ng3 Ba6 Ngf6 g8Q f1R g7 Rf5 Rhf1 Qda5 Qf7+ Kd8 g8B Nfe4 Qf6 Nf2 Kf7 Nb6 d7 Ne2 Qg3 Qe4 b8N Nh1 Qh3 Bg7 Bh7 Rf2 Bg6 Nc3 Bh5 Qf5 Bhe2 Bb7 Bd1 Kc7 d8N Nc8 Ndc6 Ne2 Ne5+ Kd8 d6 Be4 d7 Rb7 Qc3 Rb2 Qc2 Rh2 Neg6 Rg2 Rb1 a1N Rc1 Nb3 Ra1 Nc5 Ra3 Kc7 d8N Rf2 Nd7 Rh2 Nc6 Nd3 Nce5+ Kd8 Nb6 Nc3 Nb3 Ndf2 Bc4 Qb5 Qb1 Rd2 Ra8 Qa5 Ba6 Ra2 Nef3 Nd3 Ng5 Rhb2 Nd2 Ne2 Qc1 Qfb5 Qfc6 Bc3 Qce6 Bb4 Qc2 Qf5+ Qf6 Rh7+
B1B4Q/BQ1P1qBR/1q1Nnqr1/1bb1Q1n1/PN6/2q1Rrn1/3k1p1B/1K6 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 Kc2 g5 e4 b5 a4 f5 h4 f4 e6+ Kd6 e7 f3 e8B c4 h6 c3 h5 g4 h7 f2 h6 g3 Qf3 g2 Bc6 Ne7 Nd2 b3+ Kb1 b2 Ne2 g1N Ra3 b4 Bh3 Bb7 Nf4 Ba6 Nd3 Rg8 h8Q Nd7 h7 Nc5 Bc8 Bb5 Qf7 Ra5 Ba8 Nf5 Qb7 Ne6 Rh5 Rg6 Rh1 Qc7 e5+ Ke7 Rh6 Ng3 Nc4 Nh3 Be3 Nhg5 d6+ Kf7 d7 Bc5 d8B c2+ Ka2 c1Q d5 Qc2 d6 Qc3 Kb1 Qe7 d7 Qf6 Bc7 Ra6 Rh3 Rd6 Nf4 Rd3 Nd6+ Ke7 Bd4 Rf3 Nd3 Nd8 Ra2 Ke6 Ne4 Kf5 e6 Ba7 e7 Bc6 e8Q Nf1 Bh2 Ng3 Nd6+ Kg4 Qhg8 Bb6 h8B Ba7 Rh7 Bb6 Nc1 Kf4 Bg7 Ba7 Qh8 Bb6 Be5+ Ke3 Nd3 Ke2 Bd4+ Kd1 Qe5 Ba7 Ra1 Kd2 Ka2 b3+ Ka3 b1Q Qbb5 b2+ Qb3 Qbc2 Re1 b1Q Re3 Qc4 Qb2 Qcf7 Qb7 Nde6 Bb6 Qb5 Nb4 Qc3+ Ka2 Qbc5 Kb1 Bb5 Bc7 Qc6 Bb8 Bc5 Ba7 Qb6
B2rqQ1K/k2PNN2/nr1q1n1p/N1P5/4R2b/BR3Qr1/2nQb1QQ/6r1 w - - 0 1 illegal: No proof kernel
1BkB1N2/1RP2qb1/2nq1rQr/N2P2Nq/q2np3/2KBR3/b4N2/2n3QN w - - 0 1 illegal: No proof kernel
bRBK1Bq1/2p3n1/r2R2q1/b2QRrNn/k3q3/1RP3NR/2P2Q1r/B6r w - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 f5 exf5 d6 Rh2 Qd7 Rh3 Qc6 Rh1 Qc3 dxc3 Kd7 Ra4 Kd8 Ra1 Ke8 Ke2 Kd7 Kf3 h5 Ke4 a5 Kd5 e5 b4 a4 f4 h3 g4 h4 f6 e4 g5 h2 f5 e3 b6 h3 g6 a3 f7 a2 b5 e2 b7 e1R g7 Na6 f6 Nc5 b6 Ra6 Bc4 Rf1 Nf3 Ne6 Nbd2 Rf2 Rb1 a1Q Nf1 Qa2 Ng3 Rh4 Re1 h1Q Re5 h2 Bb2 Qb3 b8Q Rf4 Qb7 Rf5 Qe2 Qe1 Ba1 h1R Rb2 Rfh2 Qf2 Qe2 Ng5 Qh5 Qf3 Qg6 Qa7 Qa2 b7 Qa4 Qaf2 Qb4 Ke4 Kc6 Rb3 Qa4 Qd3 Be7 Qdd4 Qb4 Bd5+ Kb5 Bc4+ Ka4 Kd5 Ra7 Kc6 d5 Ba6 Bf8 Qdd2 Qe4 Qdd4+ Bb4 Qd3 Ba5 Qdd2 Nh6 g8R Ng4 f8R Ng7 b8R Bb7+ Kd7 Ba8 Bc8 Ra6 f7 Nf6+ Kd8 Rc6 Rh8 Ra6 Rh4 Nfh5 Nf1 Qc4 Rfe8 d4 f8B d3 Rh3 Qg8 Qd1 d2 Ng3 Rb6 R8e6 Ra6 Qdf3 d1Q+ Qd5 Qe2 Rd6 Qe4
r4R2/1PRQ4/6br/B1N1Kbbn/N1pQ1n1R/1q1Rr3/Brk4P/Q2q3R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 d4 a5 h6 f5+ Ke5 g5 d6 c5 d7 a4 d5 g4 h7 g3 d6 g2 b6 a3 b5 a2 b7 f3 b6 f2 Nf3 g1R Nc3 f4 Ne1 f3 Bd2 Rg3 Nd3 Nf6 e4 Na6 b8R Nb4 b7 Qb6 d8Q Bf5 d7 Bh6 Na4 Nbd5 Ba5 Bg5 Bg2 f1R Rc1+ Nc3 Rc2 Kb3 Qa1 f2 Bh3 Bg6 Be6+ Ncd5 Rc4 Re3 Rc2 Rf8 h8R Rb1 Rh4 Nh5 Qf6 f1B d8R Bf5 Rd7 Rg8 Rf8 Rg6 Rd2 Be2 Rc7 Rb2 Rdd1 Kc2 Qd8 Ndf4 Qd4 Rf6 Qb4 Ng6+ Kd5 Rg3 e5 Bf1 Qd4 Bg4 Bg8 Rh3 e6 Ngf4+ Ke5 Rh6 e7 Bfe2 e8Q Re3+ Qe4 Bf1 Qd7 Bfh3 Bc4 Be6 Bd5 Bf7 Bc4 Bg6 Bg8 Be6 Qc1+ Kb3 Rd2 a1Q Qg1 Qb1 Bf7 Qc2 Qa1 Qc1 Rdd1 Kc2 Bg8 Bef5 Ba2 c4 Ndc5+ Rd3 Qed5 Qb3 Qd4 Rh3 Rd3 Qd1 Bd2 Rf3 Ba5 Re3+
1Q2NR2/NpbKBR1q/1Q1Q1Q2/4qB2/1n2PN2/QP4r1/1n1b2q1/1kn3rn w - - 0 1 illegal: No proof kernel
1K6/PqQRrr2/qn2bR2/2bBN2P/2N5/4NQn1/Q2Np1rB/b1k2Nr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 h4 g5 a4 e5+ d6 b5 d4+ Ke4 f4 g4 a5 g3 d5 b3 a6 g2 f6 b4 f5 b2 h6 c6 h7 b3 f7 Qf6 Kb6 c5 Kc7 c4 a7 c3 h5 c2 d7 Bc5 f8N Ba6 d8N Bb7 d6 Be3 d7 Bf2 Nde6 Nh6 d8Q Rg8 h8Q Nd7 Nf3 g1R Nfd2+ Ke3 Ra6 e4 Ng7 Nb6 Ng6 Bd5 Bc4 Be6 Bd5 Rg2 Kb7 Rf8 Qg8 Rf7+ Qc7 Re8 Ne5 Ree7 Kb8 Qg6 f6 Nf5 Rh4 Ng3 Nec4+ Kd3 Rf4 Bc5 Qf3+ e3 Nf1 Qh6 Bd2 c1B Nf5 Kc2 Rd4 e2 Bf4 Qg6 Nbd2 b1R Bd6 Bb2 N5e3+ Kc1 Rd3 Ba1 Rd4 Nf5 Bh2 b2 Rd3 Ng3 Rd4 Rg7 f7 Qh6 f8N Rgf7 Nd7 Qg6 Bc6 Qe4 Ba8 Qc6 Nde5 Bf5 Ra4 Qh6 Qh7 Re6 Rd7 Ree7 Bd5 Qc6 Nd6 Bh3 Rf4 Be6 Nc2 Kd1 N6c4 Rc1 Rf6 b1Q Qhd3 Qbb5 Qa3 Qa6 N2e3+ Ke1 N3g4 Kd1 Qa2 Nf5 Ng3 Rb1 Qa5 Kc2 Qaa3 Rbg1 Qa2+ Kc1 Ngf1 Ng3 Nge3 Qcb7+
Q5Nb/p3BQ2/1kb1BrKn/2q4r/1Pq3b1/NN2nB2/3nPNnR/4RN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 g4 h5 d4 h4 b4 f6 d6+ Kb6 g6 c4 g5 c3 g7 h3 d5 c2 g6 f3 d7 h2 Kf5 f2 d6 Rh5+ Bg5 c1Q Nd2 Qdc7 Bg2 f1B Qb3 Qd1 Qf7 Qdc1 Nh3 Na6 Bf3 Nc5 Nf2 Qc3 Re1 Bg2 Nf1 Ne6 d8N Q7c4 d7 Nf4 Nc6 Bd6 Nd4 Be5 Nc2 Rb8 Bb7 Bc6 Na3 Ng2 Ba8 Q3d4 Bb7 Qdc5 Ba8 Ba6 d8N Bc8+ Ne6 B8d7 Bb7 Rf8 Ba8 Bf3 Be4 Bc6 Bd5 Ba1 Nd4 Bb2 Nb3 Nh6+ Ke6 f5 g8B f4 Be7 Bh8 g7 Bg4+ Kf6 f3 Kg6 Kc7 b6+ Kb7 Nd1 f2 Bf3 Ka6 b7 Kb6 Nfe3 f1N Nf2 Nd2 b8Q+ Ka6 Qa8 Kb6 Qf4 Rff5 Be6 Rf7 g8N Rf8 Rhg1 h1N Nf1 Ng3 Qf7 Ngf5 Rh1 Nfe3 Rh3 Q5d5 Rh2 Qdc5 Qh7 Rff5 Qf7 Rf6+
R3Q1q1/p4K1n/5n2/NB1P3k/RqPRrQ2/1Q1N1bQr/3b2n1/1r1Qn1B1 w - - 0 1 illegal: No proof kernel
1n3RBR/pqRB2N1/b1P5/1n1nB1Q1/3Q1q2/3qP2B/Kb1Brqr1/1N4k1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb3 Kg4 b6 Kg3 c5 Kf2 g4 d5 g6 f5 b7 h5 e6 d3 g7 d4 g5 d2 e3 f4 e7 f3 e8B h4 g6 d3 Bd7 h3 Ka2 h2 b4 Ne7 g8Q Qc7 b5 Bg7 b6 Nd5 Ne2 Qf4 Ng3 Bb2 g7 Rh3 Qa4 d1N Nh5 d2 Qd4 Rg3 Bfh3 N1c3+ Kb3 Nb5 Ka2 d1Q Bd2 Qe2 Qd8 Rg5 g8B Qd3 Ng7 Rg2 Rc1 h1Q Qg5 Rh2 Rc2 Qg2 Rc3 Kg1 Rc4 Na6 b8B f2 b7 f1Q Be5 Q1f2 b8R Bb7 Rf8 Nb8 Ra4 Bc8 Ra6 Bb7 Rh6 Ba6 Rh8 Nf6 Bdg4 Qb7 c6 Nd5 Rc8 Nd7 Rc7 Rf8 B4e6+ Rg2 Beg4 Nb8 Bd7 Rf7 Qf5 Qg4 Nc3+ Qe1 Qg5 Rff2 Rc1 Re2 Nb1 Kh1 Rd1 Qg1 Rf1 Qge4 Rf8 Qf4 Rfc8 Qgf2 Rf8 Kg1
R1R3b1/p1BP1PnR/kn1b2B1/2qrr1b1/2q3R1/2N1N3/rNK1Q1R1/2r1Q3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 c5 f4 Kc7 g4 Kb7 b4 h5 b6 e5 f6 e4 b5 c4 d6 c3+ Kc2 h3 f7 e3 g5 h4 f5 e2 d5 e1R g6 h2 d7 h3 g7 Re5 f6 Rh6 d6 Rc5 Ra2 Rch5 Nf3 Rc5 Bf4 Rd5 Ne1 Be7 f8Q Re5 f7 Re4 Qe8 Re5 Qe2 Qc7 d8R Nd7 Ng2 Qc5 Ne3 Ngf6 g8R Nh5 Rg4 Ng7 Qe1 Rhh5 Bd3 Rb8 Bg6 Bf8 Qe7 Rd5 Qe4 Re5 Qc4 Be7 Qce2 Qc4 Rh8 Qc5 Rh7 Bf8 Rhg1 h1Q R1g2 h2 Ra4 Qf1 Rc4 h1R Bh2 Nf6 Bg3 Be6 d7 Bd6 Bh2 Rc8 Bf4 Rh2 Bg3 Kb8 b7 Kc7 b8N Kb7 b6 Bf5+ Kb3 c2 Na6 c1B Nb4 Be4 Nd3 Ka6 b7 Bf5 b8R Be4 Nc2 Bg5 Ne3 Qf4 Nc3 Bf5 Rcb4 Qfc4+ Kc2 Rc7 Ra8 Be4 Rbb8 Rc6 Rhh4 Rc7 Bh5 Bh7 Rc8 Bg8 Nb2 Rd4 Kc1 Nd5 Kc2 Nb6 Bg6 Rdd5 Rh7 Rh1 Q1f2 Ra1 Qfe1 Ra2 Bh4 Bh6 Bd8 Rc6 Bc7 Bf4 Rf2 Bg5 Rfg2 Qa5 Kb1 Qcb5 Ncd1 Rc2 Nc3 Qc4 Rh3 Qc5 Rh7 Rcd2 Kc1 Rd1+ Kc2 Rc1+
1Q1QB3/N1b1n1nr/2N1BBQ1/rB3nP1/p2qb2n/B2R2R1/1P2n3/4knK1 w - - 0 1 illegal: No possible last move
1B2K1Bn/b2Q1b1P/B1P1B3/1N1r1bqp/3b2R1/1b1kNrQ1/Q4R2/n3Bb2 w - - 0 1 illegal: No possible last move, all moves rejected
q2B2r1/QPB2nRr/BN1rB1q1/4QR2/2b1q2p/2BN3P/1KRb2k1/4qq2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 Nc6 cxd5 Nce7 Ra4 exf4 Ra1 f3 Ra6 f4 Ra1 Nf5 gxf5 Qe7 Ra5 Qg5 Ra1 Qd8 d4 Kf7 Kd2 Kf6 Kc3 Kg5 e4 Kh4 b4 h5 e5 a5 f6 g5 e6 c5 d6 f2 e7 g4 e8B a4 f7 a3 d7 f3 b6 c4 d5 a2 h3 Kg3 d6 h4 b7 Ne7 b8Q Ng6 b5 Qg5 d8B Qf4 d7 Ba3 f8R Rh7 b6 Ba6 b7 Ne5 Nd2 Nf7 Qe2 Bb4+ Kb2 Bb5 Qa7 Qe4 Rh2 c3+ Kb3 c2 Nc4 Rb8 Bd2 c1R Bc3 Rd1 Nb6 Bc4+ Kb2 Rd6 Bc7 Rc8 d8B Ra8 Bd4 Bd2 Bd7 Rc8 Qe3 Rb8 Be2 f1Q Bc3 Qe1 Be6 Ra8 Qg5 f2 Nf3 f1Q Ne5 Rb8 Rf2 Rc8 Rf5 Kg2 Rg8 g3 Rc1 Rb8 Nd3 a1Q+ Kc2 Qa4+ Kb2 Qa5 Rg7 Rc8 Bdf6 Rg8 Rc2 Qa4 Qf4 Qe8 Qe5 Qa8 Nb4 Kg1 Bd3 g2 Bfd8 Kh1 Be2 g1Q Nd3 Qg6 Nf4 Bd5 Ba6 Bc4 Nd3 Kg2
NRr1R1r1/3KB3/2B1p2n/4QR1Q/2P1P1Rr/6q1/1N1bk1Bq/q1Rr1r1n w - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Qd8 g6 Bb7 g5 Bf3 h3 Bg4 hxg4 Qc8 Ra4 Qc7 Ra1 Qd8 Kd2 a5 Kd3 d5 c4 Kd7 e4 Ke6 b4 Ke5 b6 h5 b5 f5 g7 f4 b7 h4 b6 f3 g6 a4 g5 a3 Nc3 f2 Nb5 h3 Ne2 a2 Nc7 h2 Nf4 Nd7 b8Q Rh4 b7 Nh6 g8B Nf6 g7 Nfg4 g6 Qd6 Bg2 f1R Ba3 e6 Rc1 a1Q Bf7 Be7 g8R Bg5 g7 Rg1 Re8 Nf2+ Kc2 d3+ Kb3 Kd4 g8R Ke3 Qh5 d2 Nd3 d1R Nb2 Qf4 Kb4 d4 Kc5 d3 Kc6 d2 Kd7 Qg3 Be7 Rdf1 Rg7 Bf4 Rg4 Ke2 Bg6 Ra4 Na8 d1R+ Qd6 Bd2 b8R Ra6 Bf7 Rc6 Qde5 Rc8 Bg6 Rfe1 Bf7 Rgf1 Rg1 Nh1 Bg6 Rf8 Rf1 Rg8 Rf5 Rf1 Rd8 Nf2 Be8 h1Q Kd6 Qe3 Bc6 Qg3 Re8 Qhh2 Kd7 Nh1
k2r2RB/6Q1/1qNP1n2/6KQ/1QRp1rN1/1B1rq3/3Pq1Q1/bn1n1NQq w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 axb5 f5 exf5 d4 Nc3 Be6 Nb1 Bd5 cxd5 Qd7 Qb3 Qd6 Qd1 Qd8 Ke2 Kd7 Kf3 Kc8 Kf4 Kb7 g4 c5 b4 h5 b6 a5 b5 h3 f6 e5+ Kg5 h2 f4 a4 f5 c4 Ba3 h4 Nh3 c3 Bc4 c2 Be7 c1R f7 a3 d6 e4 f6 a2 Nc3 e3 Nf2 e2 Bb3 e1Q Ne2 h3 Rg1 h1N Ng3 h2 Nf1 Rc8 Rc1 a1Q Rc4 Qe2 Qe1 Bg7 f8Q Ra3 f7 Rh4 Bf6 Nc6 Qe8 Na5 f8Q Qc3 Qh5 Ka8 Qb1 Bh8 Qg7 Qc7 Be5 Rd8 Qd1 Nf6 b7+ Kb8 Qb1 Qb6 Rg2 Ka7 b8N+ Ka8 Nc6 Qcf3 Qe4 Qfd3 Rg3 Qc3 Qg2 Qcf3 Kg6 Qfe3 g5 Rf4 Ng4 Nf2 Kh6 h1Q g6 Nd1 Kg5 Qa6 b6 Qb5 Ba2 Rd3 Bb3 Qc5 Qgh7 Qb5 g7 Qb4 g8Q Bg7 Rc1 Nc4 Qg1 Na3 Rc4 Bf8 Qhg7 Be7 Qd5 Nb1 Qf3 Rd7 Qfg2 Bd8 Qe7 Ne8 Bh8 Nf6 Qg7 Bc7 Nh6 Rd8 Ng4 Q3f2 Re3 Qff3 Re8 Qfe3 Rg8 Qc5+ Nce5+ Kb8 b7 Ba5 Rc3 Ka7 Rc4 Bc3 b8Q+ Ka6 Q2f2 Ba1 Qb4 Qa5 Qfg2 Qb6 Qgh6 Ka7 Qg7+ Kb8 Nc6+ Ka8
rR2QNk1/4q3/prR1nrB1/b2Q1K2/PBqq4/1B2B3/1Pn2Nq1/Q3B1n1 w - - 0 1 illegal: No possible last move, all moves rejected
3Q1BB1/2R1Qnq1/2RnBpnB/r1QKb3/5P2/PBnn1r2/1rn3k1/5N1N w - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b6 d4 g4 e5 g3 d6 Bd7 d5 a5 b4 axb4 e6 Bh6 hxg3 Kf8 exd7 Kg7 g4 Kg6 g5 Bf8 Ke2 Kf5 Ke3 h5 Kd4 e5+ Kc4 Ke4 g4 c5 f4 b5+ Kb3 c4+ Kb2 h4 a3 c3+ Kb3 c2 g6 f6 g7 h3 g5 h2 g6 Nh6 g8B Ra5 g7 Qc7 d8B Nc6 d7 Ne7 d6 Ng6 Be7 Nf7 d8Q Rh3+ Be3 Rf3 d7 c1N+ Kb2 b3 B3c5 b4 Ne2 Qa7 Bh3 Qb7 Rf1 h1N Qd6 Ng3 Be6 Nf5 Q8b6 Qc7 d8Q Qa7 Q6d7 N5d6 Rd1 Qb7 Rd4+ Ke3 Ng3 Kf2 Rc4+ Kg2 Nd2 e4 Ndf1 e3 Nh1 e2 Qbc6 e1N Qcc7 Ne2 Rac1 Nd4 R1c3 Ndc2 Qcc8 Nf5 Bcd6 Qa7 Rc7 Qg1 R3c6 Nd3+ Kb1 b2 Ka2 b1N Kb3 Nc3 Kc4 b3 Bc5 Ne4 Kd5 b2 Bd6 b1R Q7e7 N7h6 Bgf7 Rb4 g8B Rb2 Be5 Nfd6 Bd4 Nh8 Bf2 Ng6 Bh4 Qf2 Bg5 Qg3 Bh7 Qg4 Bfg8 Nhf7 Bh6 Nge5 Bhf5 Qg7 Bg4 Ng6 Bh5 Re3 Be2 Rf3 Bd1 Nd4 Bb3 Nc2 Qed7 Nf5 Q7e8 Bd6 Qee7 Be5 Qa6 Rf2 Qc4 Rf3 Qb5 N5d6 Bb4 Na1 Qc5 Nc2 Qef8 Nc1 Qb5 Nc4 Bd6 Nd3 Qc5 Na1 Qfe8 Nc2 Bf8 Ncd6 Qee7 Nc3#
NN2Br2/Q5nr/NbPp1r1b/2b1Qn2/2RRN3/5nBK/1kNP2b1/n3Q3 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 bxc5 gxh4 a4 b4 Bc4 Qa5 Bf1 Qb5 axb5 Bg7 Ke2 Bh6 Ke1 Bf8 g4 Kf7 f4 e5 Kf2 a5 Kg2 h5 c4 d6 b6 a4 g5 a3 b7 a2 f6 Ke6 c6 h3+ Kg3 h4+ Kh2 e4 c5 Kd5 g6 b3 f7 e3 f5 e2 f6 Kc4 c7 b2 g7 Ne7 g8Q Nf5 Nc3 b1N Qe1 Kb3 Qg5 Ng7 Qe5 Rh6 Nf3 Na3 Ne4 Nc2 Bb2 Nd7 b8N Bb7 Rc1 a1B Na6 Rb8 c8N Ba8 Qd1 e1B Nb6 Bf2 Ne1 Bd5 c6 Bc5 Bd3 Ra8 Bd4 Rc8 Bf2 Bad4 Na8 Kb2 Bc4 Na1 Bg3 Bb6 Rc3 Bdc5 Nc2 Rg6 Qe1 Rd8 Qe7 Ne5 Qa7 Re8 Rf1 Rc8 Rf4 Nf3+ Kh1 h2 Kg2 h1N Kh3 Re8 Ba2 Rh6 Rc4 Rb8 Ng5 Rg6 Rfd4 Rc8 Ne4 Re8 Bh2 Ng3 Bb3 N3f5 Bg3 Ne6 Ba2 Bh6 f8Q Neg7 f7 Rf6 Qfe7 Rb8 Qe5 Rf8 Kg4 h3 Bb1 h2 Kh3 Rb8 f8N Rc8 Nd7 Rcf8 Ndb8 h1R+ Kg2 Bf4 Ba2 Rh7 Bb3 Bh6 Kh3 Bf7 Rc3 Bg6 Bg8 Bf7 Rcc4 Bd5 Bf7 Nh2 Ng5 Bh1 Be8 Nf3 Ne4 Bg2+
k2bR2b/N7/QQ1K2b1/qQ3B2/2p3nP/2PnNr2/p1BRr1nq/5QBQ w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Ke2 c5 Kd3 g5 Kc4 a5 Kd5 g3 b4 g4 h4 d6 f4 Kd7 b6 c4 e6+ Ke7 c3 g2 b5 a4 b7 g3 b6 a3 f6+ Ke8 f7+ Ke7 f5 a2 Nf3 g1B Nfd2 g2 Bd3 Bd7 Na3 Ba4 Bc2 Bg7 Rh2 Nd7 b8Q Nc5 b7 Qa5 Nb5 Nh6 Na7 Ng4 Nf1 Be8 Ne3 Rf8 Rb1 Bf2 Qh1 g1Q Rb4 Bg3 Rd2 Bh8 Qc8 Bf2 b8Q Nd3+ Qb5 Qh2 Qa6 Kd8 e7+ Kc7 f6 Bg3 Ke6 d5 Rb1 d4 Rb2 Rg8 f8Q Bg6 f7 Re8 Qh6 Rgf8 Rb1 Bd6 Ba3 Bc5 Re1 Bb6 Bc5 Kb8 Kd5 Ka8 Ree2 Rc8 e8B Bd8 Bd7 Rc7 Bf5 Re7 Re1 Re6 Nf1 Re2 Ne3 Nf4+ Kd6+ Ng2+ Qf4 d3 Qg3 Re8 f8Q Rf2 Qf4 Rf3 Qg7 Re4 Qc7 Re5 Qcb6 Re8 Rf2 d2 Rfe2 d1N Rd2 Nb2 Ree2 Rg3 Qff1 Re4 Nd1 Re8 Bg1 Nd3 Re1 Ree3 Ree2 Ref3 Re8 Rf2 Ne3 Re2 Q5c5 Rf3+ Qe5 Rf4 Qeb5 Rf3+
1b3NNk/2n2BN1/K1RQ4/B1rN2b1/P1q2P1n/rn1Rp1Rp/4N1q1/2Q2b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 Kg7 Kc4 c5 Kb5 e5 d4 h5 g4 c4 a3 h4 g6 h3 g5 e4 d6 c3 d5 b3 d7 c2 d6 b2 Nc3 b1N Nge2 Nh6 Nd5 Qc7 d8N Nc6 d7 Bd6 Bd2 c1B Ba5 Nd2 f6+ Kg8 g7 Nf5 f3 Rh5 Ne6 Nh4 d8Q+ Kh7 g8R Nb3 f7 Na7+ Ka4 b6 Ng7 Nb5 Qd7 Bg3 Qd6 Ba6 Qe1 Bcf4 Rc1 e3 Rc6 Qb7 Rd8 Qc8 f8N+ Kh8 g6 Bg5 Qc1 Qg4+ Bb4 Qc4 Rg1 Be5 f4 Ra7 Qd7 Bb8 Qd6 Qd3 Ndc3 Nc7 Nd4 Bf6 Qe7 Na1 Ne8 b5+ Ka5 Rc5 Rg3 Bg5 Qd7 Qc2 Bc4 Qg2 Bf7 Ra8 Ne4 Ra7 N4f6 Ra8 Be1 b4+ Kb6 Bf1 Ne2 b3 Qd3 Ra4 Ba5 Nb5 Ka6 b2 Qd5 Rb4 a4 b1Q Qe6 Rb3 Rd3 Qb2 Qd6 Qd4 Nd5 Rbc3 Nd7 Ra3 g7+ Kh7 g8N Nb3 Nf8+ Kh8 Ng7 Qc3 Qc2 Qc4 Qc1 Nc7+
1R1Bq1B1/R2Q2b1/K1bnNq1Q/1R2Qq1n/PnppP2Q/7r/7Q/1r1k1N2 w - - 0 1 illegal: No proof kernel
5R2/3rB1NB/2bBQrRN/K1b1b1nP/2nP1Qq1/1R6/pq2p1qB/4B2k w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 h4 Kd6 f4 e5 d4 c5 Kd2 g5 Kc3 a5 b6 a4 b5 e4 f6 e3 b7 a3 f5 c4 Kb4 a2 h5 c3 b6 g3 f7 g4 f6 c2 Nc3 g2 Ne4+ Kd7+ d6 Ke6 Rb1 Kf5 Ng3+ Kf4 Qe1 Ra7 Rb3 Bd7 Nf5 Qc8 Ng7 g3 Nh3+ Kf3 Rg1 Bc6 Bd2 c1Q Bd3 Qb2 Nf2 Nd7 b8Q Rh6 b7 Nb6 Ng4 Nc4 Bh7 Rg6 Qc7 Nh6 b8B Be7 f8B Nf7 Nh6 Qe6 Rh1 g1Q Rh4 Kg2 Rg4 Kh2 Qe2+ g2 Be1 Kh1 Rg5 Bd8 d7 Qg4 Qd6 Be7 d8B Rd7 Qf1 Nce5 Ka5 e2 Qe6 Bc5 Qf3 Qh2 Bdc7 Qhh3 Be7 Qhg3 Qf1+ g1B Qf2 Bh2 Qff5 Nd6 f7 Ne4 f8R Rf6 Rg6 Qg2 Qf2 Ng5 Qff5 Nd3 Bf4 Bg3 Bbd6 Ne5 Qe4 Bh4 Bh2 Bg3 Q4f5 Nc4+ Ka6 Nb6 Ka5 Be5 Qf4 Nc4+
2b3Q1/b2q1Q1b/nNR2Nq1/1K2n2p/2PN2pr/4rn1k/2Q2Q1P/1RBQ3B w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 e4+ Kg6 f4 Kh5 f5 Kh4 c6 g5 b6 a5 f6 h5 e6 d5+ Kb5 d4 c7 d3 f7 a4 e5 g3 b7 d2 e7 g2 e8N a3 e6 a2 e7 Nf6 Nc3 Ra4 Nf3+ Kh3 Nd4 Na6 b8Q Ng4 Rb1 a1Q Nd5 Ne5 Nb6 Qa2 c3 Qc2 Nf6 Qg6 e8Q Bc5 f8Q Qe7 Bc4 g1N Qef7 Ngf3 Bd5 Qd7+ Bc6 Rh6 Qa7 Rh7 Q8g8 Rg7 Rf1 Ra3 c4 Re3 Qc2 d1B Rg1 Bb7 c8Q Be2 Rg4 Bd3 Qcd8 Bc8 Re4 Ng4 Re6 Nge5 Qff8 Re7 Qff7 Re4 Rd6 Rh4 Re6 g4 Rd6 Qe6 Be4 Qd7+ Rc6 Nb8 Qaa2 Na6 Qf2 Re6 Qac2 Re8 Nbd5 Ba7 Nb6 Qg7 Bd5 Bh7 Be4 Qg6 Bd5 Ng5 Bh1 Ngf3 Nb3 Qc7 Qdd1 Qd7 Nd4 Nd3 Rb3 Re3 Rb1 Nde5
2b1B2R/2kBbBqQ/4rr1Q/2NPK3/3N2RB/3r4/nb1p1p1P/1B1q1n1N w - - 0 1 illegal: No proof kernel
1b4k1/Q1n3r1/1B1b3R/1Brpr2q/2B4K/nqBBRPQp/1R2P3/1b3N1N w - - 0 1 illegal: No proof kernel
NkbrR3/7n/3rQB2/QrpN4/BB2K2n/1nqq3P/2PNp1Nb/5N1R w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 Ne7 gxh5 Ng8 d4 f5 dxe5 fxe4 Kd2 d5 Ke3 Kd7 b4 g5 f4 a5 e6+ Kd6 h6 c5 e7 Kc7 e8Q a4 f5 a3 h7 g4 b6+ Kb7 h3 a2 b5 g3 f6 g2 f7 Qd6 Bd2 Qe5 Ne2 g1R Ng3 Be7 f8N Bd6 Bb4 Bf5 Qe1 Ne7 Ne6 Ra5 Nd2 Ng6 Nf4 Bc8 Qe6 Rd8 h8B Nh4 Ng2 Nd7 Bf6 Kb8 b7 Qc3+ Bd3 Bc7 Ngf1 Bh2 Rd1 a1N Rb1 Kc7 b8N Nf8 Nc6 Nh7 Ne7 Kb8 b6 Nb3 b7 Rb5 Rb2 Rd6 Qa1 Rd8 Qa5 Rd6 Rb1 Rd8 Re1 d4+ Kf2 Rd6 Nd5 Rd8 Be2 d3 Ke3 Rd6 Bh5 Rd8 Be8 Rd6 Ngf4 Rg8 Ng2 Rf8 Bc6 Rfd8 Be8 Bg1+ Kf4 e3 Ke4 Bh2 Bd7 Rbb6 Ba4 Rb5 Nf3 d2 Re2 d1Q N3d2 Qc1 Re1 Qa3 Re2 Ra6 Re1 Ka7 b8N Kb7 Re2 Rad6 Na6 Ka8 Nac7+ Kb8 Rf2 e2 Na8 Qg3 Rf4 Qc3 Rg4 Qg3 Rg8 Qa1 Rf8 Qac3 Re8 Qgd3+
2Br2R1/3rkB2/3r2P1/1KP1nq1p/1Q1qp1b1/Bn4B1/Q2R1bBR/2N1Nn2 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 d5 Kc3 e5 Kb4 h5 c4 d4 g4 d3 f4 a6 f5 d2 b6 e3 f6 e2 f7+ Kd7 g6 e1N b7 a5+ Kb5 a4 b4 a3 g7 e4 c6+ Ke7 c7 a2 g5 Qd6 g6 Bh3 c8B Bf5 c5 Na6 b8B Nh6 g8B Qd5 Bg2 Bg7 f8R Rh7 Qe2 d1R Bf7 Bd4 Nd2 Bg4 Bg3 Nf3 Rh2 Nf5 Nb3 Nb8 Ba3 Bf2 Nc1 Nd2 Nf3 Nd7 Ne1 Ne3 Rg8 Ne5 Rb1 a1Q Rb2 Nb3 Rd2 Nf1 Qc4 Na5 Qa2 Ra6 Ka4 Qb2 b5 Rd6 b6 Nb3 b7 Qbd4+ Kb5 Qe6 b8Q Qf5 Bd5 Rf7 Qb6 Rf8 Bf7 Rfd8 Qa5 R6d7 Qb4 Qb2 Re2 R1d6 Rd2 Qd4
BN1K3Q/5B2/N2nPpPb/Rq1B2b1/1Bq1Rpn1/2nk2r1/2r5/1BR2bQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 e4 a5 c4 a4 b4 a3 c6 h6 c5 a2 g6 f6 g7 Ra6 b6 Ra3 b7 Qb6 c7 Ra5 c6 Qc5 b5 Qe3 b6 Qd3 Ba3 Kd4 e5 Qd2 Kf5 h5 g4 h4 g5 h3 g6 h2 Bc4 Rh3 Bb4 Ra6 Nc3 Re3 Ne4 Ra4 Bf7 Kd3 Nf3 Na6 b8R Nc5 Nd4 Rg3 Qg1 Ba6 c8B d5 c7 Qc1 b7 Qc4 Nc6 d4 Rc1 a1B Ra8 Bc3 b8Q Qb5 Bb7 Be1 c8B Ra2 Ra7 Re2 Ba8 Nb7 Ke6 Rc2 Kd7 Nh6 g8B Nd6 Kd8 Ng4 Bf5 Bh6 Bd5 Qc4 e6 Bb5 Ra5 Ba6 Qf2 Bb5 Rf1 h1Q Bf7 Qh5 Qg1 Ke2 Qc8 d3 Qa7 d2 Qb6 d1N Nc5 Rf3 Ke7 Rb2 Bde4 Qa2 Nb8 Nc3 Qh8 Bh4 Kd8 Rg3 Nca6 Qb3 Bb1 Rc2 Qg1 Bd3 Rf3 Qc4 Bfe4 Qhb5 Bed5 B4g5 Re3+ Kd2 Ree1 Bf1 Re4 Kd3
kn1Q4/1q1q2Qq/N2PrN2/K1N1Rr1p/1pB3Nb/r3Bb2/1n4P1/2R1NR2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kd7 f4 e5 d4 c5 Kd2 Kc7 f6 h5 f7 b5 a5 Kb7 g6 e4 f5 b3 Kc3 e3 g7 e2 d6 e1Q+ Nd2 b2 d5 b1R d7 c4 a6+ Ka7 f6 Rh6 d6 Qb6 d8Q Qe4 Ra5 Qh4 Ndf3 Qg3 Nh3 Qh2 Ne1 Qb7 Qg4 Be7 Nf2 Qh3+ Bd3 Rg6 f8N Nh6 g8N Nf5 f7 Re6 Nf6 Ne3 N8d7 Rb2 f8R b4+ Kd4 c3 Kc5 c2 Bc4 Rb1 Qg7 Nd1 Be3 c1Q N2g4 Nb2 Rf1 Qc2 Ra1 Qh7 Re8 Rd1 Rc1 Qc7+ Kb5+ Rd4 Bf4 Bb7 Nc5 Bf3 Be3 Qb7+ Ka5 Rd5 Ne4 Bh4 Nef6 Nd7 Re7 Rf5 Re8 Rb8 Re7 Ka8 a7 Rc8 Re8 Nb8 Re7 Re4 Re5 Rc7 Qgg8 Re7 Qg7 Re6 Bb3 Rg5 Bf2 Re8 Nh2 Re3 Bc4 Qhd7 Nhg4 Rf5 Bg1 Rb3 Bd4 Re6 Be3 Qe4 Na4 Kb7 a8N Rc3 Nc7 Ra3 Na6 Ka8 Bg5 Rd3 Be3 Qeb7 N4c5 Ra3+
b3R1R1/B2NRbb1/n2p3p/4B2P/1Q2r1P1/5rq1/1R1KQQ1N/2qRr1nk w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f4 Kf7 f6 g6 Bd3 Ke6 f7 Kf6 f5 Ke5 f6 Ke6 Bf5+ gxf5 h4 Ke5 b4 Ke4 c4 e5 g4 a5 c6 h6 h5 a4 b6 a3 c5 a2 c7 f4 c6 f3 b7 f2+ Kd2 f1B b5 Be7 f8Q Bc4 b6 Na6 b8R Bf7 Bb2 Bb7 c8R Qc7 Re8 Bd8 Qc5 Ne7 Qf2 Ng6 Nf3 Rf8 Na3 Nf4 Nh2 Nh3 Nc4 Ng1 Re7 Re8 Rb1 a1Q Rc8 Qb8 c7 Ra7 Bc3 Ba8 b7 Qa3 Nb6 Qc1+ Ke1 Rf8 Rb2 d6 Nd7 Re8 Qc5 Kf4 Qb5 Kg3 Qb4 e4 Bd4 e3 Bc3 e2 Be5+ Qf4 Qc2 Kg2 Qcc4 Be6 f7 Qg3+ Kd2 e1R f8Q Re4 Qf4 Rf8 Qe3 Rf3 Qeb6 Bf7 Q6c5 Ne2 Rd1 Ng1 Qf2+ Kh1 Qd3 Rc4 Qde2 Re4 Re8 Bh4 Re7 Bf6 Rg8 Bg7 c8R Qc7 b8B Qc5 Rce8 Qc1+ Ke1 Rc7 Ba7 Rcc3 Nf6 Rce3 Nd7 Qc6 Kd2 Qc5 Qef1 Re1 Q1e2 Qc1+
2BK2N1/1qNr3N/1pN2RPb/3n4/2P1Q1N1/knb1p2b/2nR1r2/qQ3QB1 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 c5 hxg5 Nc6 dxc5 Nb8 Ke2 e5 Ke3 Ke7 c4 h5 a4 d5 g4 h4 f4 h3 a6 b6 g6 h2 a7 Rh4 c6 Kd6 g7 Kc5 c7 Kb4 g5 Be6 c8Q Rh6 g6 Rh8 a5 Nc6 a6 Na5 f5 Qe8 f6 Qa4 f7 Nh6 g8N Qa2 Nd2 Rb8 a8N Qc2 a7 Qa2 Ne2 Bg7 f8N Rh7 Nd4 Nb3 Nc7 Bh3 a8Q Qa7 Qd7 Qb7 Ra2 Re8 Rg1 h1Q N2f3 Rc8 Qf7 Nf5+ Kf2 Rd8 Be3 Rd7 Nh2 Ne7 Kg3 Bh6 Kh4 Rh8 Bf2 e3 Nh7 e2 Qb1 e1B Ng4 Bc3 Rd2 e4 Qae8 Ka4 Nc6 d4 Bd3 Nd5 Rf1 Ka3 Bg1 e3 Qf3 Nb4 Bf5 d3 Qee4 Nc2 Qf2 Qf3 Qfe1 Qd1 Rf4 Qc1 Qf1 Qb2 Be6 Qa2 Rf6 Qa1 Nge7 Rf8 Ng8 Rd6 Bc8 Rd7 Rh2 d2 Rhf2 d1N Rd2 Bg7 Kg5 Bh6+ Kf5 Nb2 Ke6 Nd3 Ng5 Ndb4 Nh7 Rd4 Ke7 Nd5+ Kd7 Rf7+ Kd8 Rd3 Qe5 Rd4 Qe6 Rf4 Qe5 Rf2 Qe4 Rd7+
NK2Q1b1/5B2/bpr2p2/1R6/1BqRqR2/nPQ1n3/RPbRQ1r1/1k2q1N1 w - - 0 1 illegal: No extended proof kernel
RbbN4/bQ1BQn2/P5KB/n3Pr2/1RNq3p/2r3k1/R4rp1/1RRB1q2 w - - 0 1 illegal: No proof kernel
Rn1NRr1k/q1N3br/p2Kr3/R2bRP2/Q6n/3Q3q/1PNB1pb1/3B3R w - - 0 1 illegal: No proof kernel
7k/rRb2qp1/3B3q/R1BK4/1b1BR1N1/p5QP/PNQB1rn1/Bb1r2n1 w - - 0 1 legal: proof: e4 c5 g4 d5 exd5 h5 b4 f5 gxf5 Bd7 bxc5 Be6 Bh3 Bc8 Bg4 hxg4 Ke2 Kf7 Ke3 e5 Ke4 a5 c4 b5 f4 b4 d4 b3 h3 b2 f6 a4 d6 g3 f5 g2 c6 a3 c7 Nh6 c5 Kg8 c6 Nd7 d5 Rh7 f7+ Kh8 f6 Ng4 Nc3 b1Q+ Qd3 Ne3 Na4 Ra6 Nf3 g1B Nh2 Qb3 Bd2 Ra5 Rb1 Be7 f8B Qb5 f7 Rh6 Ng4 Bf2 Rhe1 Qa6 Rb7 Nc2 Qg3 Qe8 Re2 Nb8 d7 Ne1 d8B Nd7 d6 Ng2 Re1 Bc5 Kd5 e4 Re2 Bh4 Bf6 e3 Ba1 Ne5 d7 Nf3 d8B Ng1 Nb2 Bf5 c8Q Rf6 Bb6 Bb1 c7 Rf2 Qf5 Ra4 c8R Bb4 Ra8 Bd8 Bd4 Qh6 Bd6 Bc7 Qc2 Qf8 Re1 e2 B6c5 Qe8 f8B Ra6 Bfd6 Qf8 Rc1 e1R Raa7 Ref1 Re1 Ra5 Re4 Rd1 Rb5 Ra4 Rab7 Ra7 Ra5 Qf7+
3Rn3/Qbq1pK2/3P4/P1rR3B/qk1N1B1N/3p3b/R1BRRbr1/r2Q1n2 w - - 0 1 illegal: No proof kernel
b2R4/2n1p2N/BPN5/1N1RKP1B/nqB3r1/Q3B1b1/np3B2/1kqq2rQ w - - 0 1 illegal: No proof kernel
3K2Rn/2NP4/rp1qrn2/kNNQ2p1/4r1P1/5Q2/3NBbbq/nNR3QB w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 d5 c4 h4 cxd5 Rh7 g4 Nh6 Bb2 Rh8 Be5 Ng8 Bg3 hxg3 Ke2 Kd7 Kf3 e5 Ke4 c5 d4 Kc7 f4 g5 a4 c4 h4 b6 d6+ Kb7 Kd5 Ka6 h5 e4 h6 e3 h7 e2 d7 e1R f6 g2 f7 Qe8 d8Q Bc5 f8N Re2 f5 c3 f6 c2 f7 c1N Ne6 Nd7 Kc6 Be7 Kc7 Nh6 f8Q Nf5 d5 Ng3 d6 Nf6 Nc5+ Ka7 a6 Ng8 a5 Rb2 Qff3 Qg6 Be2 Bb7 d7 Nh6 Qg8 Be4 Qgd5 Rhe8 h8N Nh5 Nf7 Nf6 Nd6 Nf7 Rh8 Nb3 Rg8 Nh8 Qdf1 Bf8 Qc1 Re6 Qe1 Rae8 Qed1 R8e7 Kd8 Ra2 Nb5+ Kb8 Nd2 Ra3 Rc1 Na1 Nb1 Ra4 Q5d3 Bb7 Qdd5 Ree4 Q1d4 R7e6 a7+ Ka8 Qf1 Bg7 Nf3 g1Q Nfd2 Qh2 Qdg1 Bf8 Qf4 Bd6 Qff2 Bg3 Qf3 Bc6 Ncb3 Kb7 a8N Bf2 a6+ Kb8 a7+ Kb7 Nac7 Ra6 N5d4 Qgh6 a8B+ Ka7 Bb7 Qd6 Nc5 Qhh2 Bd1 Bb5 Ba8 Bf1 Be2 Bg2 Ndb5+ Kb8 Qh1 Ra3 Rg1 Ree3 Qd3 Bh3 Qff5 Ra7 Baf3 R3e4 Rc1 Ra3 Qd1 Ra2 Bh1 Bg2 Qff3 Ra7 Ncb3 Kb7 Qg1 Ra4 Nd5 Ka6 Nc5+ Ka5 Ndc7 Kb4 Qd5 Ra6 Nd3+ Ka4 Nc5+ Ka5
3BQ1qn/P1KB4/rB5n/2r1b1nb/1R1P1Rp1/NR2p3/Q2BkB2/1N4rq w - - 0 1 illegal: No possible last move
R3Nrq1/P1Bp4/R1B1NB1b/pP2N2k/rqQ2n1q/3br3/5B1Q/3n2BK w - - 0 1 illegal: No proof kernel
3nK1b1/1B2R1NN/2Qn1N1p/1NNPn1QR/1b1R1B2/1qP1nkn1/6pr/3r4 w - - 0 1 illegal: No proof kernel
b1R1R3/2bRnBP1/3rN2k/1q1b2p1/3pPQn1/br1N1Qb1/1B2RQK1/6R1 w - - 0 1 illegal: No proof kernel
3K4/1Q2Rp2/RPBnpnQb/3bR1q1/1r3rP1/2B1n3/nQ2nk1N/2R1R1N1 w - - 0 1 illegal: No proof kernel
8/1P1Rn3/B1p1nB2/B3r1Nr/N2pnqn1/1b1RQQbB/P3Q1Bn/1k3K2 w - - 0 1 illegal: No possible last move
1bB3QR/2K4b/1NB3nR/NB2N1pn/P1Qq1Bnn/3pP3/6b1/1r2rk1B w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Ke3 Ke6 Kf4 f5 h4 b5 c4 d5 a4 b3 h6 g6 c6 d4 c7 b4 h7 b2 h5 b3 h6 Qd7 c5 Kd5 e6 Kc4 Ke5 f4 c6 g5 e7 f3 e8B f2 Nf3 Nf6 Bf4 Bb7 c8B Bc5 c7 Ba7 Nc3 b1N Nd5 b2 Nb6+ Kc3 e3 Nh5 Be2 f1N Bb5 Nbd2 Qe2 b1B Rh2 Kc2 Qc4+ Kd1 Rh4 Bc6 Bb7 Nh2 c8B Qg7+ Kd6 Nd7 Ra2 Nf8 Ne5 Bg2 Nc6 Ke1 Na5 Ng6 Bec6 Ng4 Rb2 Qf6+ Kc7 Rb8 Rb4 Rf8 h8Q Nf3 h7 Kf2 Rh1 Nfh4 Qhg8 Bbe4 h8N d3 Rb3 Qd4 Nf7 Bf5 Rh3 Kf1 Ne5 Bfe4 Bh2 Rf2 Bf4 Re2 Rh2 Re1 Rb1 Bh3 Rbb2 Bf5 Bh1 Bg2 B7c6 Nh8 Re2 Bh7 Rh3 N8g6 Rb2 Be4 Rbh2 Bg2 Ba8 Ng3 Bf3 Nhf5 Nd5 Rb6 Be8 Rb4 Nb6 Rbb1 Qh8 Bg8 Bb5 Qa1 Rh7 Qd4 R2h6 Nh5 Bfc6 Nfh4 Qg7 Qa1 Qgf7 Qd4 Rh8 Bh7 Qg8 Bb8+
r3q3/N1Q2NB1/r3r1B1/N1QpbR2/1N1rPP1N/1pnR1K1B/1k4b1/1n1n4 w - - 0 1 illegal: No proof kernel
qK1Q3B/2n3BB/bRQ2R1r/R1Pn2rp/NnRP1b2/1r6/2r1pR2/k2N4 w - - 0 1 illegal: No possible last move
4B2b/B2R1n1k/RN5N/1p1KrP1P/1Qn3b1/R1r2p1N/NN3Q2/n3nb1q w - - 0 1 illegal: No proof kernel
3Q4/7r/1R4PP/1Nbbq1N1/3NB1kb/nn1nRpp1/RB1Q1r1b/K1N2N2 w - - 0 1 illegal: No proof kernel
qN3R2/4kn2/n1B2p1N/r2rB1n1/r1Q1b2K/p2BP2N/1BP2nQ1/B1b3R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kg3 d5 h4 g5 b4 d3 e3 a4 b6 d2 b5 a3 e6 d4 e7 d3 b7 g4 b6 Ra4 h6 Nd7 b8Q Re4 b7 Qb6 h5 Qd8 h7 Bg7 h6 Rd4 Qc7 Nb8 Bb2 Ra4 Qe2 d1R Kh4 g3+ Qc4 d2 Nh3 g2 Rg1 Na6 b8N Bf5 Nc3 Be4 Nb5 Qd5 Qg4 Qa8 Bd3 Bc3 Rf1 g1N Qg2 Bg7 Nd4 Nf3+ Kg3 Bf6 Nf5 Ng5 Kh4 Ra5 Rb1 Bc3 Ba1 Bb2 Rg1 Bc1 Rb3 Nf6 Rc3 Rg8 h8B Ng4 h7 Nh6 Be5 Rg6 h8B Rd6 Qa2 Rdd5 Qc4 Rf1 Rb3 d1N Rb6 Ra4 Rf6 Nf2 Beb2 Rd1 Bg7 Rda5 Bh8 Nhg4 Nh6 Ne5 Rf4 Nc6 Bhe5 Nd8 Bf1 Rdd5 Bd3 Bf5 Nc6 Kd7 e8B+ Ke6 Rf3 Be4 Nb8 Ke7 Bc6 f6 Rg3 Ngf7 Rg8 Ng5 Rf8 Ndf7
B2RqB1R/3rN2N/4p1b1/nQ6/n1rp1QP1/Bb1P1r2/2rBk1nR/K6B w - - 0 1 legal: proof: b4 g5 e4 f5 a4 fxe4 c4 b5 cxb5 g4 a5 g3 hxg3 Bh6 g4 Be3 g5 Bb6 axb6 Kf8 Ra6 Kf7 Ra1 Ke8 g4 Kf7 f4 Ke6 d3 Kd5 Kd2 Kd4 Kc2 d5 Kb2 c5 g6 a5 b7 h5 g7 e3 b6 e2 b5 e1N f5 h4 f6 a4 f7 h3 f8B c4 Nd2 Ke3 Ne2 h2 Nc3 a3+ Ka2 d4 Qa4 Bf5 Bg2 Nc6 b8B Rh7 b7 Bg6 b6 Nf6 g8B Ne4 Bd6 Qe8 b8R Na5 b7 Nc5 Rd8 Rc8 B8d5 e6 b8Q Rd7 Qab5 Na4 Ba8 Rc5 Bge4 Ng2 Nd5+ Ke2 Nf3 c3 Bd2 c2 Ne7 c1R Ng5 R1c4 Nh7 Rf5 Rab1 Rf3 Ka1 a2 Ba3 Rc2 Qf4 Rc4 Rhc1 h1B Rc2 Nb6 Kb2 a1R Rd1 Rb1+ Ka2 Rb2+ Ka1 Na4 Rg1 Ne1 Rg3 Ng2 Rh3 Rcb4 Rcc8 Rc4 Rh2 Rbc2 Rc5 Bh5 Rg5 Bf7 Rg8 Bg6 Rh8 Re3 Nc6 Rc5 Rh4 Ne1 Bf5 Bd5 Be4 Bb3 Ne7 R5c4 Bh1 Rf3 Rh2+ Ng2
QK1rBr2/R7/NN1P2P1/3p2Rn/2R1nBNR/kb1R3r/pn1b2q1/1Q1n4 w - - 0 1 illegal: No proof kernel
N3kBB1/Qr1r4/1bP1b1r1/1n4r1/p2q2RK/p4n2/1RQRQ1PR/bR5N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 Nc6 dxc5 Nb8 b4 h5 c4 d5 f4 a5 Kf2 e5 Kg3 e4 f6 e3 g6 a3 c6 e2 c7 a4 f7+ Kd7 g7 d4 b5 d3 c5 d2 b6 Nh6 g8R Ng4 f5 Nh2 b7 Be7 f8R Ra5 f6 Nc6 b8Q Bd6+ Kh4 Nd4 Nc3 Nc2 Nd5 Ng4 Nh3 e1B+ Nf2 Nh2 Rg4 Rg8 Rb1 Be5 Qa7 Nd4 Qe2 d1R Bh6 Rg6 Rh8 Bc3 Rb2 Nb5 Bf8 Bcd4 Nb6+ Ke8 Na8 Be6 c8Q Rb1 c6 Bb6 Qcb7 Bc3 Qh7 Qd4 Rd2 Ba1 f7+ Kd8 Rg1 Rd1 Nh1 Nf3+ Kh3 h4 Rb2 Rh6 Qhc2 Rg6 Rh7 Qf4 Rh5 Rd7 Rd5 Qb4 Rd2 Qf4 Bb4 Qd6 f8R+ Ke7 Rf5 Ke8 Rh5 Qf4 Bf8 Qd4 Qe3 Rb7 Bc4 Rd7 Qc7 Ra7 Qe2 Rb7 Rgb1 Ng5+ Kh2 h3 Kg3 h2 Bd5 Nf3 Rh3 Rb8 Qa7 Rbb7 Bc4 Ne1 Kh4 Rg5 Ng3 h1R Rh2 Rf1 Bd5 Rf6 Nh1 Rfg6 Bc4 Nd3 Bb3 Ne5 Bc4 Bf5 Bg8 Be6 Kh3 Nf3 Kg3 Ng1 Kh4 Nf3+
6BQ/2nr1R1b/1Rp5/PP1N1Bkn/3Qn3/3pbnr1/QQ1Q2bB/q1K2N2 w - - 0 1 illegal: No possible last move
3k4/Nn4Q1/pR3bBb/PB1b2N1/1nPnR1qR/rn2pBR1/2R4r/2Q4K w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Be7 gxh5 Bf8 e4 f6 e6 Nh6 e5 Ng8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 e8R Kc7 a4 d5 h4 b5 f4 g5 Kf2 d4 Kg2 d3 a5 b4 e7 b3 f5 e4 h6 e3 c6 d2 h5 g4 h7 a6 f6 b2 f7 g3 h6 Be6 Nh3 Qd4 Rg1 Nf6 Qc1 d1N Ra2 Qd7 Kh1 Nc3 Bb5 Nfe4 Ng5 Nc5 Na3 Nd5 c4 b1N Rc2 Nb4 Rgg2 Bg7 f8R Nb7 Rf6 Bd5 Rd6 Qg4 Rg6 Rf8 h8R Rf2 h7 Nd2 Re6 Bh6 Re4 Nd7 Rb8 Nb3 e8B Nd4 Bg6 Ndc5 Rg1 Ncb3 Rg2 Nd8 Rb6 Nb7 Rg1 Rd8 Rg2 Kc8 c7 Ndc6 Rg1 Kd7 c8B+ Kc7 Re8 Ncd4 h8Q Rd7 Qg7 g2+ Kh2 Rd2 Rh8 Rd3 Rh7 Rf7 Bcd7 Kd8 Bbc6 Rf2 Nb5 Re2 Na7 Rc3 Bb5 Rd3 Bdc6 Rc3 Rd1 g1B+ Kh1 Bh2 Rg1 Be5 Rg3 Bf6 Nf3 Bf4 Rh4 Bh6 Ng5 Nd2 Bce8 Ra3 Bh5 N2b3 Beg6 Qc8 Bf3 Qg4 Qh7 Rd2 Qg7 Rh2+
n2NB1R1/B3n1n1/pQb1B1BP/qP4k1/3r1b2/1RR1b3/1B1bQr1p/N1K5 w - - 0 1 illegal: No possible last move, all moves rejected
1rnRr1N1/2Q1Q2p/2K1P1R1/bb1R2RR/4p3/BB1N2bq/1P3n2/1br2kN1 w - - 0 1 illegal: No proof kernel
n1r5/NkNrb2p/Rb1P3b/KQ2qR1p/1n2N1N1/2P1B3/B5N1/3bQBn1 w - - 0 1 illegal: No possible last move, all moves rejected
N6n/n3NBp1/1p1R1Q2/RbBNqPQ1/rbP5/2Qbrn2/k2N4/2K1Nn2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 h4 e5 a4 d5 f4 e4 c6 d4 f6 Ke6 f7 Kd5 h6 b6 h7 b3 f5 d3 a5 Kc4 c7 b2 h5 Ba6 c8N Bb5 h6 Qe7 a6 Nf6 a7 Qc5 Ra5 Kb4 Qg4 Be7 f8Q Ng8 Qg5 Qd5 Qff6 Qe5 Nf3 Nc6 Ne1 e3+ Kd1 d2 Bc4 Bf8 Bf7 Nge7 c4 Ng6 Ne7 Kb3 Nd5 Bb4 Rh4 Rhc8 h8N Re8 h7 Re6 Rd4 Re7 Nbc3 b1B Ba3 Bd3 Nb1 Ka2 Ra4 Bf1 Ra5 e2+ Kc2 d1N Kc1 Ne3 Nd2 Rd8 a8N Na7 Nc2 e1N Rd3 N1g2 Ne1 N2h4 Rd4 Nf3 Rd3 Nf4 Ng6 Rg8 Rd4 Bd3 h8Q Nf1 Qh3 Ree8 Nge7 Ng6 Nf4 Rgf8 Rd6 Nh8 Nfd5 Qd4 Ng8 Re3 Nge7 Rc8 Qhh4 Qe5 Qd4 Rc7 Qc3 Nc8 Be6 Ra7 Bg8 Ra6 Bf7 Na7 Ra4 Bc5 Rb4 Bd7 Rb5 Ra4 Ra5 Bb5 Rd7 Bd4 Bd6 Bc5 Rd8 Bb4 Bc5 Qe4 Rd6 Qe5
2bN1r1R/q1N1bPkN/2n1B1r1/1P1R1Rr1/b2K3N/2QQppn1/1b6/5NB1 w - - 0 1 illegal: No possible last move
1n2K3/2NQ1P2/B3n1qp/p2BB1bQ/6Br/Rb1BPN2/r5kn/1R1r1n1N w - - 0 1 illegal: No proof kernel
1bNq3k/1Nr1np1r/1B3PBn/4n3/R1nr3R/RQ1Pp2Q/B3b3/1KR3R1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 c4 e5 h4 g5 f4 a5 f5 e3 c6 e2 c7 e4 f6 g4 h6 g3 b6 g2 c5 a4 h5 a3 b7 a2 c6 Ne7 h7 Qd6 h6 Qd4 Na3 Qb4 Nb5 Qa5 Na7 Bd7 c8R+ Qd8 c7 Nec6 Nh3 g1N Qb3 Be7 Nf4 Kf8 Nd3 Ba3 Nc5 Nh3 Rg1 Bg4 d3 Ng5 Kd2 e1N Bg2 Nd7 b8R Nb6 Nb7 Nef3+ Kc2 Ne6 Be3 Nc4 Bb6 e3 Rac1 Nfe5 Be4 a1R Bg6 Ra2+ Kb1 Be2 Rc3 Ng7 Rcc1 Rg8 h8Q Nf5 h7 Bd6 Rc3 Nh6 Rcc1 Qe8 Rd8 Rd2 c8B Rc2 Be6 Ne7 Nc8 Ra4 Ra8 Bb8 Rd4 Qd8 Rh4 Nd6 Ra7 Rd4 Ra3 Rc7 Rf4 Rd5 Rfa4 Rd4 Bd5 Ndc4 Qg7+ Ke8 h8R Rf8 Rh7 Rh8 Be6 Nhg4 Rh2 Nh6 Qh7 Kf8 Rh4 N5c6 Be4 N6e5 Qf5 Rh7 Qh3 Rd5 Bg6 Rd4 Bd5 Kg8 Qc2 Nd6 Ba2 Kh8 Qb3 Ndc4
2N1Bkn1/QR1n1pp1/Pnr2r2/2r1b3/B6Q/Nb1KBN2/4PBr1/5qRB w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 h4 c5 d4 b5 Kd2 g3 a4 c4 e6 c3+ Kd3 b4 e7 g2 d6 c2 a6 b3 a7 b2 h5 Nd7 h6 Qa5 d5 Qd8 a5 Rh7 a6 Qb6 Nf3 g1N Bg2 Qb7 Na3 b1R Be3 Rb6 Rb1 Rh8 h7 Nh3 Rg1 c1R Bh1 Rb8 a8B Qa7 Bc6 Bb7 Ba4 Ra8 Qf1 Rd8 Qf2 Rbc6 Qh4 Ba8 Rb7 Rdc8 Qd4 Rf1 Bf2 Qc5 Qe3 Qc1 Qa7 Ng5 Be3 Nb6 Bf2 Rc7 Be3 Ne4 Bf2 Kd7 e8B+ Kd8 d7 Ke7 d8N Nef6 Be3 Nfd7 Bf2 Rc5 Be3 R7c6 Bf2 Rg6 Be3 Rg2 Nc6+ Kf6 Bf2 Bd6 Ne7 Be5 d6 Ke6 Nc8 Kf6 Rb8 Bd5 Rb7 Bb3 Be3 Rc6 Bf2 Qf4 Be3 Rfc1 Bf2 R1c5 Be3 Nb8 d7 Ke6 d8B N8d7 Bh4 Qf6 Ne1 Qf1 Bhf2 Kf6 Nf3 Ke6 Nd6 Ke7 Nc8+ Kf8 Bh4 Ne7 Be1 Rf6 B1f2 Rg8 h8Q Rcc6 Qh2 Rh8 Nd4 Ng8 Nf3 Rhh6 Qh4 Rc5 Ke4 Rfc6 Kd3 Rhf6
6bn/2rRP1r1/Kn1RP3/2QR1N1n/R1B2Bqp/p1bQ3R/4r1r1/1NN1k3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 g4 Ke7 d4 h5 Kd2 f5 Kd3 c5 Kc4 a5 b4 a4 e4 h3 g5 f4 e6 Kd6 e7 f3 g6 h4 g7 f2 b6 h2 Kb5 c4 b7 c3 Ne2 c2 Qd3 Rh5 Bf4+ Re5 Nc1 Nd7 b8R Ra7 Rb7 Nh6 g8N Nf7 Nh6 Bg7 Rc7 Rb7+ Ka6 Nb6 b5 Nh8 Rc5 Be6 Nf5+ Kd7 d6 Qc8 d5 Bg8 Be2 f1N Rc6 Re6 e5 Ng3 Ra3 Nh5 Rc7+ Ke8 d7+ Kf7 d8R Kg6 Rcd7 Qc4 d6 Qe4 Rb3 a3 Rb4 Qg2 Ra4 Qg4 Qc3 Bf6 Bc4 Rc7 Rd1 h1R Rd5 Rg1 Qe3 Rg2 Qc5 Na8 b6 Rb7 Bg3 Kg5 Bh2 Rc7 b7 Nb6 b8R Bg7 Rb7 Rg6 e6 Bc3 Bg3 Rg7 Bh2 Ng3 Rbb8 Kf4 Rb7 Kf3 Rbb8 Na8 Rb3 Nh5 Bf4 Nb6 Qb5 Kf2 Qc5+ Bd4 Rc3 Ke1 Rh3 Rc6 Rb7 Rc7 d7 Na8 Rb6 Bc3 Rbd6 Nb6 Rf8 Rb7 d8Q Rc7 Qd7 Re2 Rd8 Rg2 Qdb5 Re2 R8d7 Rg2 Na2 c1R Qb3 Rcc2 Nc1 Ra2 Qc2 Rb2 Qd3 Rbe2
1BnQrR2/2K1PB1k/PB6/B1pNp1n1/1n1n4/2Q2R1B/5rN1/1br1bR1q w - - 0 1 illegal: No proof kernel
b1Rb3k/B1PB3B/PQr1QN1p/1rNr4/p1nqB3/1R1r2B1/n1b5/3QK3 w - - 0 1 illegal: No proof kernel
5Nk1/2pn2p1/1bBqb1BR/r2bPn2/Q3BbRN/K1P5/1r2rQ2/1Q1B2B1 w - - 0 1 legal: proof: d4 a5 g4 h5 b4 hxg4 bxa5 f5 Qd3 e5 dxe5 Be7 Qxf5 Ba3 Qh7 Bf8 Kd2 Kf7 Kc3 b5 Kb2 d5 f4 b4 h4 d4 e4 d3 a4 d2 f5 d1B c3 b3 a6 g3 a7 g2 h5 Qd3 e6+ Kf6 a5 Qd6 e5+ Ke7 h6 Bg4 a6 Qd4 f6+ Ke8 e7 Kf7 e8B+ Ke6 f7 Qf2+ Ne2 g1B Ra4 Nf6 Be3 Be7 f8Q Bd6 Bg6 Nbd7 Nd2 Bf5 Nd4+ Kd5 Be2 Ng4 Bd1 Be7 Ne6 Bg5 Ka3 b2 Nf3 b1R Nh4 Be4 Rh2 Qf1 Qf2 Bf4 Nf8 Qd3 Rb4 Rb2 Rh1 Rb8 a8B+ Rb7 a7 Re2 Bb6 Ne3 Rh3 Nf5 Ra4 Bh1 Be3 Bfh2 Rg4 Bf4 Bd4 Qb5 Bc5 Qc6 Rh2 Rb4 Bb7 Rbb2 a8B Kc4 Rh3 Qd6 Bc6 Bd5 Rh1 Bb7 Rh2 Be6 Be4 Bbd5 Bc6 Bc1 Qg8 Be3 h7 Bf4 Qf7 Rg8 Qe1 Bge3 h8Q Bf2 Qe8 B2e3 Qh7 Bg1 Bb4 Bb6 Bc5 Ba5 Qa8 Ne3 Bf3 Be4 Nf5 Bf7 Ne6 Rh8 Rh6 Bb6 Bh5 Rf8 Qa7 Ra8 Nh4 Bf5 Nf8 Be4 Bb5+ Kd5 Qa4 Ra5 Bh1 Bf3 Qb1 Nf5 Bg6 Be4 Nh7 Ke6 Bc6 Ke7 Nf8 Bed5 Be4 Bfe6 Bh7 Kf7 Bg6+ Kg8 Qg3 Rb4 Bg1 Bd2 Qf3 Bf4 Qf2 Rbb2+
5r2/NP1k4/2pbq1b1/3n2p1/2r2PB1/2nKQ2N/1BR1Rn2/BnBNQ1rB w - - 0 1 illegal: No proof kernel
br2nk1K/1p1Q1q1B/nPR5/3n1rbn/BN2Q1Q1/1R4p1/N1QQ3P/2r2N2 w - - 0 1 illegal: Other
1RNrr1B1/PB3R1K/3n2B1/n1bq3B/r2p1p2/NbQnB3/2R2Pk1/1rQ5 w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 h4 g5 hxg5 Nc6 cxb5 Nb8 b4 axb4 Kd2 Ke7 Ke3 Ke6 Ke4 h5 a4 c5 g4 h4 g6 h3 g7 f6 g5 c4 b6 b3 b7 c3 g6 d6 a5 b2 a6 h2 a7 c2 Na3 b1R Nh3 Nd7 b8R Rb2 Be3 c1R Bg2 Qb6 Ra2 Rc7 Qc1 Rb1 Rc2 d5+ Kf4 d4 Bb7 f5 Kg5 Qc5 Nf4+ Ke7 e6 Kd6 e7 Ke5 e8B Qd5 Rg1 Ne7 g8Q Ke4 g7 h1N Ng6 Nc6 Ne7 f4+ Kg6 Ng3 Rh1 Nc5 Rh7 Be6 Nc8 Nd3 Kh6 Qa5 Bh5 Bb3 Qc4 Bc5 Qc3 Rd8 g8B Nf5+ Kg6 Nd6 Rf7 Qb5 Kh7 Qc4 Bd2 Qd5 e3 Ke5 e4 Na5 Be3 Rc6 Bg6 Rb6 Bh5 Rb4 Bg6 Ra4 Bh5 Ke6 e5 Re8 Rd7+ Kf5 e6 Ke4 Rf7 Rd8 e7 Re8 Bg6+ Kf3 Bh5+ Kg2 Bg6 Rd8 e8B Rc4 Bd7 Re8 Bg4 Ra4 B4h5 Ne5 Nb6 Nd3 Rd8 Re4 Re8 Rd8 Ref8 Rd7 Rb8 Re8 Nc8 Rdd8
3k1NQ1/PRR1NrrQ/3b2pB/8/PnbprR2/qn5n/1Nn5/1N1BN1K1 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 a4 e5 h4 d5 c4 b5 f4 g6 Kf2 b4 a6 e4 h6 b3 a7 d3 f6 d2 f7+ Kd7 c5 b2 h7 d4 h5 Nh6 c6+ Ke7 f5 Na6 f6+ Kd6 c7 Kd7 Nf3 e3+ Kg1 e2 Ne1 Ng4 h6 Bb7 c8N Nf2 Qb3 d1R Ne7 Rg8 h8N Qc8 h7 Qc5 Bh6 Be4 Bg2 Qc1 Bf3 Bd3 Rh5 Nb4 Rb5 Rc8 Rb7+ Kd8 Bg4 Bc4 Bh5 Bg7 f8N Rc7 f7 Be5 Qh3 Rd3 Ra3 Rg7 Rc3 Bd6 Bf3 Be6 Qh1 Rd7 Rcc7 Bc4 Bf4 Rc3 Nf5 Nc6 Na3 Nd1 Ng2 Re7 Nd7 e1N f8R+ Re8 Bd2 Nf2 Bd1 Nc2 Ne1 b1N Be3 Nd2 Nb1 Be6 Rf6 Rge7 Nf8 Rg7 Bg5 Ree7 Nf7+ Ke8 h8Q Rf3 Qg8 N6b4 Qhh7 Qa3 Bh6 Bc4 Ne5 Kd8 N5d3 Re4 Ne7 Nb3 Nb2 Rff4 Re6 Rff7 Rf6 Nd5 Rf3 Ndb4 Rf4 Nh3+
1q1n1k2/3bb1r1/8/1qN1rBRQ/2BBr1B1/N1BPp1N1/1p2R1Pr/3n1QK1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 e5 f4 b5 Kf2 h5 g6 c5 f6 c4 d6 b3 d3 c3 g7 e4 d7+ Kf7 f5 c2 a5 h4 a6 b2 a7 h3 Bd2 c1Q Ra2 b4 Bc3 h2 Be2 b3 Bg4 Ba3 Ne2 Qc7 d8B Qg5 Ng3 Be7 Na3 b1R Re2 Nh6 g8B+ Kf8 Bc4 b2 f7 Bd7 Qf1 Qd6 Bb6 Rh7 Bbd4 Nc6 Qd1 Re8 a8B Nd8 Bb7 Ba4 Bc8 Rg7 Rhe1 h1R Bd7 Rh2 Kg1 Qb8 Bc8 Bf6 Rf1 Ke7 f8N Bd7 Ne6 e3 Rf4 Rc1 Nc5 Kf8 Rff2 Be7 f6 Rc2 f7 Qh5 Bf5 Ng4 Rf4 Nf2 Rg4 Rc1 Rg5 Rc2 Qf1 Nd1 Bg4 Qg6 Qf5 Qc6 Qh7 Qcb5 Qh5 Bc6 Bcf5 Bd7 Re1 Rf2 Re2 Rf4 Qh4 Re4 Bg6 Bf6 Qh5 Ke7 Bh7 Kd6 f8Q+ R8e7 Qff7 R7e5 Qfg6 Ke7 Qf5 Kf8 Qf1 Rh3 Bg6 Rh2 B6f5 Be7
Qb1B4/1B1NR1B1/2b2Nk1/2Q4p/2qn3P/nrpq4/2P1rR2/Bn2NBKn w - - 0 1 legal: proof: d4 a5 g4 b5 a4 f5 gxf5 e5 dxe5 Kf7 axb5 Ke8 b4 axb4 h4 Kf7 f4 h5 Kf2 g5 e4 c5 e6+ Kg7 e7 d5 e8Q b3 e5 d4 f6+ Kh7 f7 c4 e6 d3 b6 b2 f5 d2 b7 g4 e7 c3 f6 Nh6 Rh2 Nd7 b8B Rg8 Bc7 Kg6 Ra7 Bb7 Nf3 g3+ Kg1 g2 Ne1 Ne5 Bb6 Qc8 Bd8 Nhg4 Qa4 Nc4 e8B Na3 Bc6 Be7 f8B Nf2 f7 Rb8 Bg7 Nh1 Qa6 Ba8 Bb7+ Bd6 Qf3 d1Q Qb6 Qd5 Qc5 Re8 Nd2 b1N Ne4 Qd3 Nf6 Re2 Bb2 Qg4 Ba1 Qgc4 Bc8 Rb4 Re7 Bc6 Bb7 Rb3 Qfd5 Be5 f8N+ Kf5 N8d7 Kg6 Rh3 Bb8 Rf3 Ng3 Kh2 g1N+ Rf2 Nf3+ Kg2 Nd4 Kg1 Nh1 Qf3 Ba4 Qfc6 Bb5 Qa6 Ba4 Qa8 Bc6
K2N2n1/1qq1r3/1N1q1RN1/R1b1N1pB/3p3b/nQP2qP1/4Qr2/B1kB3N w - - 0 1 illegal: No possible last move, all moves rejected
1qB1BNq1/1RR2KN1/2Q2P2/1p1n2NN/1b2r3/1Rrk1r1p/4b2P/NnQ2r2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 f4 b6 f3 gxf3 Qe7 f4 Qh4 f5 Qd8 b4 Bb7 b5 Bd6 Be3 Bc8 b7 Ke7 b6 Na6 b8N Ke8 b7 Bf8 Bb6 cxb6 Kd2 Ke7 Kd3 d5 Kd4 g5 f4 h5 e4 b5 c4 g4 e6 Kd6 f6 g3 e7 g2 e8B h4 f5 Nc5 e5+ Kc7 e6 Kd6 f7 a5 e7 a4 Nd2 a3 Nd7 a2 b8R Nf6 Rb7 Ra3 Nb3 Na4 Nh3 Nc3 Rb1 a1R Ng5 g1R Bg2 h3 Qc1 Rf1 c5+ Kc6 Ke5 Rh4 Ke6 Rf3 Rb2 d4 Rg1 Rb1 Na1 d3 Rb3 d2 Bh1 d1Q Rg2 Raa4 Rc2 Qg1 Bg2 Rac4 Bh1 Bh6 f8N Rhe4+ Kf7 Kd5 c6 Kd4 c7 Nfd5 Nf6 Kd3 Nh5 Qg2 f6 Bg4 c8Q Rc5 Nge6 Bd2 Qc6 Qb8 Ng5 Rcc4 Qb2 Rbf1 Qc1 Qg1 Bg2 Rfe3 Bh1 Be2 Bf3 Qgg3 Bg4 Ref3 Bc8 Qg4 Bed7 Qg2 e8N Be1 Neg7 Bd2 Rb4 Nb1 Be8 Qg4 Rbb2 Bb4 Rb3+ Rc3 Ra2 Qf5 Raa7 Qh7 Rc7 Qh8 Rab7 Qg8+
N3K1b1/1Rbn3q/2kBp3/2qR3Q/3Q2p1/r1PnnrQ1/PnQ1B3/1N3RQ1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 b5 Kd3 d5 Kd4 Kd7 Ke5 g5 f4 d4 h4 b3 c6+ Kc7 h6 d3 h7 b4 h5 b2 f6 g4 f7 d2 h6 e6 f5 b3 f6 Kb6 c7 Kb7 Ne2 Ra3 Nec3 Ra5+ Nd5 Ne7 Rh5 Qd7 Be2 Qb5 Kd6 Ra3 Nb6 Qg5 Qg1 d1N Na8 Nd7 Bf4 Nf2 c3 Rg8 h8Q Nd3 h7 Bh6 f8Q Nd5 f7 Ne3 Qfg7 Rf8 Qg6 Qe5+ Ke7 Qc5+ Bd6 Bf4 Qf5 Kc6 Qd4 Ba6 h8Q Bc4 Rg5 Bd5 Qhh7 Be4 Qh5 Bg3 Qf4 Bh7 Rd5 Bg8 Qff2 Be5 Qfg3 Bf4 Nd2 b1Q c8R+ Kb5 Rd8 b2 Rb8+ Kc6 Rb7 Qc2 Rf1 b1N Bf3 Nf2 Bd1 Qh7 Be2 Nd3 Rf3 Rb3 Rf1 Na3 Nb1 Nac4 Qf3 Rc8 Qfg3 Rc7 Ke8 Ra3 f8Q Ncb2 Qff5 Be5 Rb3 Rca7 Rb7 R7a4 Be7 Bc7 Bd6 Rb4 Qg7 Re4 Qd4 Rf4 Qfe4 Rf3 Qef5 N3e5 Qc2 Ned3
N1bQ3R/N1B1b2N/2QprP1b/Q2Bq3/2KP2k1/nRp3n1/4r3/2Qq2Qb w - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 c6 exf5 Qb6 a5 Bh6 a6 Qb7 axb7 Kd8 cxb5 Bg7 b6 Bf8 b5 Ke8 Ke2 Kf7 Kd3 Kf6 g4 Kg5 f4+ Kh6 f6 e5 f5 Kg5 f7 a5 f6 h5 Bg2 h3 Kc4 h2 Bd5 e4 Ne2 a4 Nd4 a3 Nc3 e3 Na4 a2 Rb1 a1Q Rb3 c5 Nc6 h4 Na7 Be7 f8N Nc6 b8Q h3 b7 e2 b6 e1B Qc7 Qe5 b8Q Nd4 b7 Nc2 d4+ Bd2 Nb6 Nh6 Qc6 Nf5 Qbc7 Ng3 b8Q d6 Nh7+ Kh4 g5 Re8 g6 Bh6 Qf1 Kh5 g7 Kg4 Bd2 Na3+ Kd3 Ne4 Ba5 Ng3 Qc1 c4+ Kc3 Qe4 Qd8 Qe5 Qbc7 Rb8 Na8 Rb4 Rd1 h1Q Rd3 h2 g8Q+ Bg5 Rf3 Qd1 Rf1 Rb6 Rh1 Rb5 Qg6 Rc5 Qgb1 Bh6 Q7b6 Rb5 Qa6 Rb8 Bc7 Rb5 Qa5 Rc5 Re1 h1B Kb4 c3 Re2 Bef8 Rh2 Re6 Rh5 Be7 Rh3 Qd2 Qg1 Qd1 Qc1 Nb1 Rh2 Rb5+ Kc4 Rb7 Ra3 Rb2 Rb3 Re2 Ng5 Bg7 Rh8 Bh6 Nh7 Na3+
1q3K2/Qr1R4/1Bpbq1BB/N2k2Bn/2nr3q/1BR3QN/1pP1q2P/4b2N w - - 0 1 illegal: No possible last move
n1bN1b2/7Q/pkbpRQ2/6RP/q1n4P/rN1R2Rq/BRB3b1/2BKr3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 h4 f5 e4 g5 b4 d6 c4 Kd7 b6 Kc6 b7 g4 b5+ Kb6 c5+ Kc7 b6+ Kc6 e6 d3 e5 g3 e7 a6 e8B+ Nd7 b8Q f4 b7 f3 e6 g2 e7 Ra7 Bf7 Qc7 e8R Rh7 Rh3 Ndf6 Qc2 d2+ Kd1 f2 Rg3 Nd5 Nh3 g1Q Nf4 Nb6 Raa3 Qh1 Rad3 Na8 Ba2 Re7 Ne6 Qa5 Nd8+ Kb5 c6 Qa4 c7 Nf6 Rg5+ Nd5 Rdg3+ Re2 Re6 Qh3 Bg2 f1B Be4 Kb6 Bd3 Bd7 c8R Re3 Rc3 Bc8 Bg6 Bg2 Rd3 Ne7 Bh7 Nc6 Bf5 Na5 Qc7+ Kb5 Qh7 Kb6 b8R+ Rb7 Qf7 Nc4 Qf6 Re4 Nc3 Re2 Ne4 Re3 Nc5 Bc6 Rd5 Ra3 Rdd3 Bg2 Nb3 Bc6 Ke2 d1B+ Ke1 Be2 Qb1 Bf1 Kd1 Bfg2 Rde3 Bgd5 Bd2 Bg7 Ke1 Qg2 Na5+ Kc7 Ref3 Rc3 Qc2 Rbb3 Bc1 Bf8 Kd1 Ra3 Rb2 Re3 Nb3 Kb6 Bh7 Qh3 Qcg6 B6b7 Qgg7 Re5 Bc2 Bbc6 Rd3 Bg2 Qh7 Re1+
B1r4K/QN1q2QP/2b2n2/2nQR1bp/P1bp4/B5Bq/Bb1k3B/2N2R1r w - - 0 1 illegal: No proof kernel
3N3q/7p/NQ1qr2R/2bkn1NK/b2Pb1N1/1R3r1p/2n1PB2/RN1Qb2B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Ke7 Kf3 a5 b4 f5 g4 c5 d3 f4 e6 Kd6 b6 a4 e7 c4 e8R a3 b5 c3 b7 a2 g5 c2 g6 Na6 b8N Nf6 b6 Ng4 b7 Nb4 g7 Ra6 g8N Bd7 Nh6 Ba4 Be3 c1B Bf2 Nc2 Re3 Bd2 Bg2 Be1 Nh3 Rg8 Ng5 Ne5+ Ke4 f3 Kf4 Rg6 Ng4 Re6 Rh3 Kc5 d6 Kd5 d7 Bc5 Bh1 Qe7 d8N Qd6 Kf5 Rb6 Rh2 Rb3 Na6 Rc3 b8Q h3 Qb6 Rb3 Rg2 Ra3 Kf4 Rb3 Kg3 Ra3 Kh4 Rc3 Bg3 f2 Kh5 f1B Bf2 Ra3 Rgg3+ Bg2 Ref3 Rb3 Rf6 Be4 Rh6 Rc3 Na3 Rb3 d4 Rf3 Rc1 a1Q Nb1 Rf8 Rb3 Rf3 Nd2 Qa3 Ra1 Qf8 Nb1 Qh8 Qb5 Qb4 Qa5 Qb8 Qb6 Qd6
r3NN1b/2r4p/Nkq1R2R/3Pp3/4N1q1/Nr1Q2PQ/4n1bK/Brn2B1Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 e5 d4 c5 f6 Kc7 b6+ Kb7 b5 h3 Kg3 a4 f7 a3 d6 h2 d7 c4 f5 c3 f6 a2 Ne2 c2 Bb2 c1R Na3 Bh6 f8N Rc2 f7 Bd2 Ne6 Qe8 f8N Ne7 d8Q Na6 Ng7 Rc7 Nc3 Nc5 Ne4 Qd7 Ne8 Bg5 d5 Nc6 Qd3 Nd4 Rc1 Qe6 Qd7 Ncb3 Rc6 Bf6 Ba1 Nc1 Rd6 Qf5 Re6 Qg5+ Kh3 Nde2 g3 Rg8 Kg2 Bh8 Kh3 Qg4+ Kg2 Kb8 b7 Ka7 b8N Ba6 b6+ Kb7 Bc3 a1Q Bd4 Bc4 Na6 Qb1 Ba1 Qb5 Qb3 Rb8 Qd3 Qc6 Qc8+ Ka8 b7+ Ka7 Qd7 Kb6 Qc8 Ra8 Qd7 Rg7 b8Q+ Rb7 Qbc8 Rf7 Qdd8+ Rfc7 Qh4 Bb5 Rg1 h1R Qh6 Rh5 Rh1 Rf5 Qh2 Rf3 Qg1+ Re3 Rhh6 Rbb8 Qh1 Rf3 Qc2 Rb3 Kh2 Bc4 Qd8 Bb5 Qh4 Bd3 Qh3 Rbb7 N4d6 Be4 Qd3 Bg2 Ne4 Ka5 Rhg6 R7b5 Rh6 Kb6 Nc2 Rb1 Na3 R5b3
1q5b/nQ2rpk1/N2r1NB1/R3b3/N2nqP1R/QB3bbB/3pPN2/1N5K w - - 0 1 illegal: No possible last move, all moves rejected
4B3/1p1rB1NN/b4RK1/r4bR1/5Qp1/1Q3PPb/B1N1n2b/qB1q1knB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 g4 Qd5 Qc7 Qd4 Qf4 Qd1 Qg5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 Kf7 Ke3 d5 Kf4 h5 c4 b3 a4 b2 f6 Kg6 f7 d4 a5 d3 f3 h4 a6 Kh5 g3 d2 g6 h3 c6 h2 c5 Be6 g7 Rh7 c7 Nh6 c8B Nc6 g8B Nf5 a7 Ncd4 c6 Kg6 c7 Kf6 Qb3 d1Q Na3 b1B Bg2 Bd3 Bd7 Ba6 c8B Ne2+ Ke4 Bg7 f8N Nfd4 Nh3 Ng1 Ng5 Nde2 Nc2 Bh8 Be8 Rg7 Ke3 Ke5 Ba3 Rf7 Nfh7 Bg7 Qa4 Kd5 Bb4 Kc4 Ke4 Bd4 Bc5+ Kc3 Qb3+ Kd2 Ra5 Qa1 Bd6 Be3 Rf5 Rg7 Rf6 Bb6 Nd4 Ke1 Nc2+ Kf2 Qb1 Bf5+ Kd5 e5 Rf8 Nc1 Ne3 e4 Qb2+ Be2 Ke5 Nh3 Kf6 Bc5 Rd1 h1B Ba2 Re7 Bce6 Rd7 Bb1 Bb6 Nc2 e3 Bb3 Bed3 Be7 e2 Bc4 e1Q Ne6 Ne2 Ng7 Be6 Bca2 Bb5 Rd3 Qd1 Rd5 Bc5 Kg6 Bc4 Bf1 Bg2 Qb3 Be3 Rg5 Bb5 Nd4 Ke1 Rf7 Bg1 Rf6 Bh2 Nc2+ Kf2 Rh5 Nhg1 Rg5 Bh3 Bg2 Bbc4 Bh1 Bb5 Nf8 Kf1 Nh7 Rc8 a8Q Rc5 Qaa4 Ba6 Qe4 Ra5 Qf4 Bf5+
1B4kN/1p4rq/PpBRR1Qb/5R1b/3R1r2/K1RnqN2/2P1q1Q1/2qBn3 w - - 0 1 legal: proof: d4 c5 b4 Qc7 b5 Qd8 b6 axb6 dxc5 h5 g4 f5 gxh5 Nf6 e4 Ng8 exf5 Ra6 Qe2 Ra7 Qd1 Ra8 Kd2 Kf7 Kc3 e5 Kb4 g5 f4 d5 h4 e4 a4 e3 a5 d4 f6 e2 f5 e1Q+ Nc3 g4 a6 d3 h6 g3 h7 d2 h5 g2 h6 Qee8 Qf3 d1Q Rh4 Q1d3 Bf4 Bg7 c6 Qc4+ Ka3 Qe3 c7 Nc6 Rd1 Qdd3 Be2 Qd8 Rd6 Qde7 Bd1 Kf8 f7 Qee2 Nb5 Bd7 c8B Be8 Bd7 Nb4 Bc6 Q2e5 Qd3 Qc7 Nf3 Ke7 f8R g1Q Rff6 Qed4 Rfe6+ Kf8 f6 Ne7 f7 Ned5 Qg6 Rg8 h8Q Nd3 h7 Ne1 Qg2 Bh6 Qf6 Rg3 Qg6 Nb4 Be5 Qdc5 Rhd4 Rg4 Bg3 Rf4 Bh2 Qe7 Bg3 Qe5 Bh2 Qg7 h8R+ Qg8 Rh7 Qe2 Rg7 Nbd3 Rh7 Bg7 Rh3 Qh7 Ng5 Qf6 R4d5 Qge3 Rd8 Q3f2 Nd6 Ne5 Qh5 Rd4 Rg3 Q6f4 Rc3 Rb8 Nf3 N5d3 Qhg5 Re4 Rd4 Bh6 Qh5 Qg5 Bf4 Kg7 f8R Rc8 Bh2 Rc7 Rf5 Kg8 Nf7 Rh4 Nh8 Rg7 Bb8 Qc1+ Kb3 Rf4 R8d6 Bg6 Qhg5 Bh5 Qg6 Qfe3 Ka2 Qb1+ Ka3 Qbc1+
5R1b/pPqR3N/3rRb1R/Bn2bk1r/2RQp2Q/1b2PB2/NQ4q1/3nK3 w - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 d4 Kd7 h4 f5 b4 e5 g6 c5 h5 g3 h6 e4 d6 Ke6 e3 c4 d5+ Kf6 b6 c3 g7 g2 b5 c2 b7 f4 b6 f3 d7 Rh7 d6 Ke5 Ra4 Qe7 d8R Qc7 d7 Na6 b8Q Ba3 Be2 Ne7 g8R Nd5 Rge8+ Be7 Nh3 g1B Nc3 Bh2 Qd4+ Kf5 Ng5 Bf6 Bd2 c1B Rc4 Bb2 Re6 Bhe5 Na2 Nc3 Rf8 Nd1 d8R Ba1 Rd7 f2+ Kf1 Bb7 Ba5 Bd5 Bf3 Rh8 Qb7 Rd8 h7 Bb2 Ke2 f1Q+ Kd2 Qh3 Ke1 Qg2 Rh6 Ba1 Rde7 Rd6 Rd7 Qd8 Qb8 Nc7 b7 Qe7 Qd8 Nb5 Q8b6 Qd8 Qb2 Qc7 Q6d4 Rg8 h8Q Rg7 Rc1 Bb3 Nh7 Rg5 Rc4 Rh5 Qg8 Qc2 Qg3 Qg2 Qh4 Bf4 Qb1 Bb2 Qc3 Ba1 Rb8 Bh8 Qbc2 Bfe5 Rf8+ Bef6 Q3d3 Be5 Qd4 Rd5 Qcb2 Rd6
1Q3bb1/2B3Bq/4qpQp/n1N1NR1N/3N1PR1/1n1r3P/KN2n2b/2R2q1k w - - 1 2 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 cxd5 g4 f4 Be6 d4 Qd6 e5 Ra6 Be2 Bc8 Bf3 Qd8 d6 gxf3 d5 Bh6 Ra3 Kf8 Ra1 Kg7 d7 Rd6 exd6 Kf6 Qb3 Bg7 Qd1 Bf8 Kd2 Kf5 Kc2 Ke4 Kb3 c5 g4 e5 g5 h6 b6 f2 h3 f1Q b7 Qe1 g6 Ne7 g7 Qc7 g8R Qg3+ Nf3 Nbc6 b8B Qe1 d8N Nf5 d7 Bd6 Rg4 Ng3 Ne6 Rd8 Na3 Bf8 Nc4 a4+ Ka3 Bb7 b4 Qe2 Rb1 Na5 d6 Bd5 b5 Qe1 Kb2 a3+ Ka1 a2 b6 Qe2 b7 Qe1 Kb2 a1N Ka2 Qe3 Rb4 N1b3 Ng7 Be6 Bd2 Qe2 Nb2+ c4 Rb5 c3 Na4 c2 Bc3 c1Q+ Nb2 Ke3 Nh5 Kf2 Qc2 Kg2 Qg6 e4 Rf5 e3 Bh8 Q1c4 Rc1 Qf1 Ne5 e2 Bf6 e1B Bh8 Rc8 d8N f6 d7 Bg8 Ne6 Kh1 d8N Ne2 Nd4 Bg3 N8e6 Qh7 Bg7 Bh2 Bd6 Qa6 b8Q Rc3 Bc7 Rd3 Nc5 Qe6
1n4Qn/3r1b1P/pR2q3/b4R2/Pq1NKBN1/Q2Bb2k/p1BB1B2/nQ4q1 w - - 0 1 illegal: No proof kernel
2B1nR2/p1Q1Qp2/P1bN2rk/n2nn2n/K2Rq3/RB1R2Nr/1R1rBP2/8 w - - 1 2 legal: proof: h4 e5 b4 c5 bxc5 h6 d4 Ne7 dxe5 Ng8 Bg5 Bd6 g3 Be7 h5 Bf6 Bd2 Bh4 Bg5 hxg5 gxh4 Kf8 Nc3 Ke7 Nb1 Ke8 Kd2 Kf8 Kc3 b5 Kb3 d5 e4 g4 a4 g5 c4 Kg7 a5 d4 e6 g3 c6 g4 c7 b4 e7 d3 e8B d2 h6+ Kh7 c5 g2 a6 g3 c6 Nd7 e5 Ndf6 e6 Nd5 h5 Bb7 c8Q Ne3 e7 Nc2 c7 Bd5+ Ka4 b3 Ne2 g1N Nbc3 g2 Rh4 b2 Qe1 b1N Ng3 d1R Ra3 Rd2 Rd4 Nb4 Nb5 Nf3 Nd6 g1N Be2 Nc6 Qd7 Nfe5 c8B Qb6 Qc7 Na5 Bed7 Qc5 e8R Nh3 Rd8 Nf4 Be6 Nf6 Rd7 Bf3 Bb3 Qc2 Rd8 Ne8 Rd7 Kg8 h7+ Kg7 h6+ Kg6 Rd3 Nh5 Rd4 Rg8 h8R Qe4 h7 Kh6 Rd8 Rg6 Rf8 Kg5 h8R Nc3+ Kb4 Nd5+ Ka4 Nhf4 Rh3 Nh5 Ra2 Kh6 Rb2 Rd3 Qb4 Rd2 Qbc5 Rb8 Qe7 Rb7 Qcc7 Bg2 Rh1 Rb5 Ra1 Rc5 Rd7 Rc1 Ra3 Rh1 Nc4 Rh3 Rd3 Nb4 R7d4 Nd5 Nd6 Qf4 Beg4 Nc3+ Kb4 Bc6 Be2 Qe4 Nf1 Bb7 Ng3 Nd5+ Ka4 Bc6+
BbR2B2/6q1/Q1Ppq3/n3R1nr/KQ1p1R2/1n1P1NR1/1r2n1R1/kn1NB3 w - - 0 1 illegal: No proof kernel
1Br5/3R2qN/q1Q1P2p/2p1BBQ1/r1qN3P/3RK1Bn/kqQ3qb/3n3B w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 fxe5 f4 c4 Bf5 gxf5 dxc4 Kf2 Kd7 b4 c5 h4 g5 d4 a5 e4 f3 d5 a4 d6 h6 f6 Ke6 d7 g4 f7 c3 b6 a3 b7 c2 b5 g3+ Ke3 a2 b6 f2 Nd2 g2 Ne2 g1Q Rh3 Rh7 Nf3 Rg7 Bb2 Qf6 d8Q Rg4 Bg2 Qg7 Qg5 Nf6 Bh1 Nc6 b8B Na7 b7 Bd6 f8Q c1Q+ Qd2 Qb1 Qc2 Nh7 Qff4 Qbf1 Rd1 a1Q Bc7 Qfg2 b8B Qa6 Qf8 Q1h2 Qe8+ Be7 Rg3 f1Q Qc6+ Bd6 Ba1 Nb5 Ned4+ Kf7 Bb2 Qc4 Rh3 Nc3 e6+ Kg8 e7 Kf7 e5 Rf4 Qg3 Ng5 e8B+ Ke7 e6 Kf6 Ba7 Rc8 Bg6 Ke7 Bf5 Kf6 Nd2 Ke5 Bcb8 Bc7 Ne4 Bd6 Qg4 Bc7 Rf3 Nh3 Ng5 Bd6 Nh7 Bc7 Q6a4 Kd5 Qg5 Bd6 Bc7 Rg4 Rd3 Bg3 Rf2 Bd6 Bab8 Nd1+ Kd2 Qhe5 Qb5 Qef6 Qba4 Bh2 Bg3 Qb4+ Bc3 Kc4 Qc6 Qbb5 Ba1+ Kb4 Bc3+ Ka3 Re2 Qc4 Rf2 Nb2 Ke3 Ka2 Rfd2 Rf4 Ne2 Rg4 Bce5 Rf4 Rd7 Rd4 Rd3 Rg4 Qc3 Nd1+ Kd2 Re8 Bed6 Qcb5 Qc2+ Qfb2 Bdc7 Ra4 Bce5 Ndf2 Ke3 Qc4 Nd4 Rh8 Bef4 Rc8 Bfe5 Nd1+
3k3K/1n1rbR1Q/p1BRbB2/7N/P1R2bQq/1QP5/Q1NpQb2/2n2qb1 w - - 0 1 legal: proof: g4 c5 e4 f5 exf5 h5 b4 hxg4 d3 b5 c3 c4 dxc4 a6 Qc2 Ra7 Qa4 Rc7 Qd1 Rc5 bxc5 Qa5 Qe2 Qc7 Qd1 Qd8 Ke2 d5 Kd3 e5 a4 g5 f4 b4 h4 d4 Ke4 g3 h5 b3 f6 g2 h6 g4 h7 d3 c6 b2 c5 g3 c7 Be6 c8Q Nd7 f7+ Ke7 c6 Bh6 f8R Qc7 f5 Qb6 c7 Bf7 f6+ Kd6 Kf5 e4 Ne2 g1B Qe8 e3 c8Q g2 Ng3 e2 Nh5 e1B Bg5 Ba2 Kg6 Nc5 f7 Qb4 Qb3 Bgf2 Qe2 g1B Rh4 Nf6 Na3 b1Q Qcg4 Kc7 Bg2 Nd5 Bf6 Nb7 Nc2 Bf4 Kg7 d2 Rd8 Qe7 Rd6 Rd8 h8Q Rd7 Qh7 Kd8 Kh8 Nb4 Bc6 Qc1 Rb1 Nd3 Rb2 Qa1 Rb1 Nc1 f8Q+ Kc7 Qff7 Kd8 Qfc4 Bc5 Qd5 Bef2 Qdf7 Nd3 Rf1 Nc1 Qa3 Be6 Qa2 Bf5 Qfb3 Be6 Rh3 Ba3 Re3 Qb1 Re4 Bac5 Bg7 Qh4 Rc4 Bfd4 Rf2 Bf6 Rf3 Be7 Bf6 Bcf2 Bg5 Bfh2 Rf7 Bhg3 Bf6 Bf4 Na3 Qd3 Nc2 Qf3 Qbb1 Qfh3 Qbb3 Qf1
1B1Rq3/3QQr1N/2P3q1/5pRp/5qNP/2nRq3/2K1rbN1/kBN1rN1n w - - 0 1 illegal: No possible last move, all moves rejected
6q1/kBR2P2/qNp3RQ/b1nR2Bb/R1r4p/3Rrq1P/6QK/Nq3rB1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 Nc6 cxd5 Nce7 Ra4 exf4 Ra1 f3 Ra6 f4 Ra1 Nf5 gxf5 Qe7 Ra5 Qg5 Ra1 Qd8 Kf2 Kd7 e4 h5 b4 a5 d4 g5 h3 h4 f6 g4 b6 a4 e5 c6 f7 a3 e6+ Kd6 b5 a2 e7 Be6 e8R Qb8 b7 Kc7 b6+ Kd7 d6 Qc8 b8Q Ra5 d5 Ra3 b7 Ne7 Ba6 Rc3 Ne2 g3+ Kg1 g2 Nd4 f2+ Kh2 g1R Qe2 f1Q Nd2 f3 Nc2 f2 Nc4 Rh7 Bg5 Ng8 Re7+ Kd8 d7 Rh8 Qd6 Bg4 b8R Bh5 Nb6 Nf6 Bb7 Ne4 Qh6 Kc7 Re5 Be7 d8R Bb4 Ra8 Re8 Ra4 Kb8 d6 Rc5 d7 Qb1 Rd5 f1Q Qg2 Qf3 Ra7 Rf1 Rg1 Rc4 Ra4 Qe1 Rb1 Bd2 Na1 Nc5 Rb3 Re5 Rbd3 Ba5 Rh8 Re6 d8B Ka7 Re8 Qed1 Re7 Qb1 Rc7 Re3 Bdf6 Qg8 Bd4 Rfe1 Qf2 Rd1 Rg3 Rf1 Qg2 Re4 Bg1 Re3 Nb3 a1Q Rg4 Qc3 Na1 Qa3 Rb4 Rf2 Bd8 Rf1 Rg6 Qa4 Be7 Qb5 Ra4 Qa6 Bf6 Rd4 Bg5 Rc4
1qq2QNN/k1Bq1pB1/r1q1bPNR/8/n3bB2/5B1B/1b1K2pP/3Q2Rn w - - 0 1 legal: proof: e4 c5 g4 d5 d4 h5 gxh5 b5 a3 a5 a4 Ra7 axb5 Rd7 Nc3 cxd4 Nb1 d3 Bh3 d4 Bf1 Rd5 exd5 Rh6 Nh3 Rh7 Ng1 Rh8 f4 Kd7 b4 Kc7 c4 Kb6 h6 e5 c5+ Ka7 h7 g5 c6 a4 d6 d2+ Ke2 e4 f5 g4 d7 g3 c7 a3 Bh3 a2 Nc3 e3 Bb2 g2 Ne4 Nf6 Nf3 Na6 Nh4 Nh5 Rg1 Nc5 Nf6 Bg7 Ng8 Na4 Ng6 Ng3+ Kd3 Qf8 d8Q Be6 c8B e2 Bb7 e1Q Bf3 Qe5 Rb1 Qfc5 Qf8 a1Q Rc1 Qcc7 Rc6 Qc1 Rd6 Q1c6 b6+ Ka6 b7 Nh1 b8B Qc8 Bc7 Ka7 b5 Qg3 Qa1 d1B Kd2 Bc2 Qd1 d3 Ba1 Bb2 b6+ Ka8 b7+ Ka7 Rd4 Qgd6 Rh4 Qdd8 Rh6 Qb8 Ke3 d2 Bf4 Qdc8 Ke2 Ba3 Bg7 Bb2 f6 Bcf5 Qc1 d1Q+ Ke3 Qdd8 Qd1 Qdd7 Ke2 Qbd6 Ke1 Be4 b8B+ Ka8 Bc7 Qe5 Qfd6 Ka7 Kd2 Qeb5 N8e7 Re8 h8N Qbb8 Ng8 B6d5 Bhg4 Re6 Qf8 Rd6 Bh3 Be6+ Ke1 Qd5 Ke2 Ra6 Ke3 Q5c6 Ke2 Qe7 Kd2 Qed7+
2K3QN/7N/bBP1Q3/1qR2pp1/1nnk1P2/nBRB1B2/3BqRq1/4nrr1 w - - 0 1 illegal: No possible last move
qr1KQ2n/5r1k/pp1R3q/P4R2/1B3NN1/3qQPnr/2N1NNRb/1B1q4 w - - 0 1 illegal: No possible last move, all moves rejected
2Rr1Rq1/3rNQ2/NBN3Pk/r1nQK3/q2B3q/p2b2n1/P1B3pq/NN6 w - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Be7 h4 fxg4 Ba3 g3 Bb2 g4 Bc1 Bg5 hxg5 Kf8 Nf3 Ke7 Ng1 Ke8 Nd2 Kf8 f4 Kg7 e4 h5 Ke2 a5 Ke3 b5 Kd4 d5 c4 a4 f5 g2 f6+ Kh7 f7 b4 f8B a3 e6 h4 e5 h3 c6 h2 c5 b3 e7 b2 e8Q b1R e6 g3 e7 Ba6 c7 Bc8 c6 Rb3 Ne2 g1Q+ Ke5 g2 Nd4 Rb6 Bd3+ Bf5 c8N Nf6 g6+ Kg8 c7 Be4 Bb2 Rd6 Nc2 d4 Rc1 Rh7 Na1 Nh5 Na7 Ng3 c8N Na6 Nb1 Bf5 Be4 d3 Qd7 d2 e8N Rd3 Nc7 Kh8 Be7 Kg7 Bc5+ Kh6 Bb6 Qg8 Qf3 Rd6 B2d4 d1Q Rc6 Qdb3 Bc2 Qa4 Qd5 Bd3 Qe7 Rd8 Rc3 Qd1 Rf1 Qg4 Rf8 h1Q Qe8 Rhd7 Ne7 Qgh4 Qef7 Q1h2 Rc4 Nc5 Rc3 Nce4 Rc6 Rac8 Na6 Rcc7 Rc3 Rc5 Rc4 Rb5 Rc8 Nc5 Nac6 Ra5
1b2QB2/1bpp3K/Qn2b1BR/1qP3Pq/4Bq2/1Rr2N2/Qbr3N1/1B1k2B1 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Na6 h3 Nc5 h4 Ne4 Bd2 fxg4 Bc1 g3 Nd2 g4 Nb1 Ng5 hxg5 Bg7 Qd4 Bh6 Qd1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 f4 a5 b4 h4 c4 a4 b6 g2 c5 a3 b5 g3 f5+ Kf7 b7 a2 b8Q h3 e6+ Ke7 b6 h2 b7 Rh7 Qd3 Rh3 Nc3 Bg7 Rb1 a1B Rb3 Qe8 Be3 Bb2 Qa7 Qh5 Nf3 g1Q b8Q g2 Qda6 Qf2 Nd1 g1Q Bg2 Qgf1 Bd4 Qg3 Bg1 Bgc3 Ne3 Bb4 Qa2 Ba5 Qa6 Qgf2 Kf4 Bb6 Ke4 Ba7 f6+ Kd8 f7 Ke7 Kf5 Bb7 Qc8 Nf6 Qg8 Nd5 f8B+ Ke8 e7 Nb6 Qh8 Kf7 Qe5 Bb8 e8B+ Kg8 Bf7+ Kh7 Qe8 Qfh4 Bd5 Qb4 Be4 Qb5 Bb1 Bd5 Nc2 Bc4 e4 Be6+ Kf4 Rg3 e5 Ra7 Ke4 Rb7 Nce1 Qf2 Nh4 Rc3 Nef3 Ra7 Bf1 Rc2 Ng2 Qd2 Bd3 Ra8 Qb7 Ra3 Qa6 Qf2 Qec8 Kg6 Qe8+ Bf7 e6 Qf1 Rb4 Rac3 e7 Qf2 Rb3 Qf1 Qd8 Be6 Qdc8 Qh7 Ke5+ Kh5 Kf6 Kg4 e8B Qh5 Kg7 Qc1 Be4 Qf4 B8g6 Kg3 Bd4 Kg4 Qe8 Kg3 Rd1 h1B Bg1 Kg4 Rd6 Kg3 Bh2+ Kf2 Bg1+ Ke2 Rc6 Qhg4 Kh7 Kd1 Bh5 Bf7 Rh6 Be6 Bf7 Qh5 Nge1 Bg2 Bfg6 Bf1 Ng2 Bfc4 Rb4 Bcd5 Rb3 Bb7
1KB3Rb/p4nrn/1p5n/1BR2bq1/1P3B1b/1kB3n1/NqNP2Q1/QQ1B4 w - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 b6 hxg5 Nc6 a5 Rb8 a6 Rb7 axb7 Qd7 Nc3 Qd6 Nb1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b8B Kb4 g4 h5 d6 f5+ Kd5 h4 e4 h3 d7 f3 g6 h2 g7 f2 g5 f4 g6 f3 e5 Qf6 d8Q Qg5 Ba6 f1Q Qf6 f2 Ra5 Qe2 Na3 f1N Nc2+ Kb3 Rc5 Bg4 Bc8 Qee3 Ne2 Bd7 Rg1 h1N Nc3 Nf2 Na2 Nh6 g8B Nfg4 g7 Bf5 e6 Ng3 e7 Nd8 e8B Ndf7 Kc6 Rh7 Kb7 Be7 Bb5 Qd4 Rg2 c6 Bf4 Qc3 Qd4 Nf6 Kb8 Qb4 Re5 c5 Qf1 c4 Rc5 Nh8 Bd5 Qc3 g8Q Rg7 Bf3 Nh7 Bd1 Qb4 Qgd5 N8f7 Rg1 Qa3 Qdg2 c3 Bc4+ Ka4 b4 Qb2 Bb5+ Kb3 Qe5 Qb1 Bb2 Bf6 Ne1+ c2 Bc3 Qb2 Qee4 Ka3 Qed3 c1B Qb1 Bd8 Nc2+ Kb3 Qa1 Qh5 Qd3 Bh4 Re1 Qg5 Re8 Qa3 Rg8 Bb2 Qc1 Ba1 Qdf1 Qb2 Qb1 Qf6 Qfh1 Qg5 Bf6 Nh5 Bde2 Rg6 Qbd1 Qa3 Bg4 Bc3 Qa1 Qb2 Qhb1 Ng3 Bd1 Bd4 Be7 Bg7 Bf6 Bh8 Bc3 Rg7
b1b2R1N/bQq5/2Q4K/np1P2NN/2Br4/1P1bB2p/qk2B3/rq1BRB2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 e5 c4 exf4 cxd5 Nd7 a5 Nb6 axb6 Bc5 Ra4 Bb4 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 e4 Ke5 d4+ Kd6 g4 h5 b7 c5 b8Q+ Qc7 e5+ Ke7 g6 a5 g7 f5 d6+ Ke6 g5 Kd5 b3 h4 d7 c4 d8N a4 e6 c3 e7 c2 e8B a3 g6 h3 Ne2 a2 Be3 c1Q Ng3 Rh4 Qc2 Ra6 Nf7 Bc5 Nh5 Ne7 g8B Ba7 g7 Nc6 Nd2 Qb1 Ne4 Na5 Neg5 Rg4 Bh7 Rh4 g8B Rg4 Kf2 f3 Rh2 f4 Bhd3 Rh4 Bde2 Rg4 Bh7 Rh4 Bhd3 Rg4 Nh8 Rh4 Kg1 f2+ Kh1 f3 Qb7+ Nc6 Bd1 Rf4 Bfe2 f1B Rf2 Bg2+ Kh2 Ra4 Rf1 f2 Kg3 Ra3 Re1 f1B Bd7 Bf3 Bg4 Be4 Kh4 Bfg2 Bf1 Bef5 B3e2 Bd3 Qb6 Na5 Qb7+ Kd6 Qc4 Bc6 d5 Ke5 Qc5 Rd4 Qc3 Qc2 Rc1 a1Q Qc5 Qca2 Rc4 B6d7 Qcc6 Q1b1 Rc2 Be4 Bc4 Bd3 Rf2 Be8 Qca6 Bc6 Rf8 Ra4 Qbb6 Ba8 Qbb7 Qac2 Qac6 Ra1 Nf4 Qh2 Kh5 Qha2 Kh6 Re4 Bd2 Kd4 Be3+ Kc3 Nh5 Kb2 Bge2 Rd4
1nqn3N/1NNQ2qP/2BNNQbp/2R2q2/r2K4/4Q2P/1Rb1qp1k/B3b3 w - - 0 1 legal: proof: f4 d5 c4 b5 cxd5 e5 g4 exf4 a4 a5 axb5 h6 g5 Rh7 g6 Ra7 gxh7 Ra6 Bh3 Ra8 Bf1 Bh3 Ra4 Qf6 Ra2 Bc5 Ra1 Kd8 Nc3 Nc6 Na2 Nge7 Nb4 Rc8 Na2 Nb8 Nb4 Kd7 Rb1 Rh8 Na2 Ng8 Ra1 Ke8 Nc3 Qd8 Nb1 Bc8 Ra3 Be7 Ra1 Bf8 Kf2 Kd7 b4 Kd6 e4 Ke5 d4+ Kd6 b6 c5 e5+ Ke7 d6+ Ke6 d5+ Kf5 d7 g5 b5 f3 Ke3 Kg4 h3+ Kg3 d6 f5 e6 f2 b7 g4 e7 a4 e8Q a3 b6 c4 Rh2 f4+ Kd4 c3 Bb5 f1B Nd2 f3 Bc6 a2 Qe3 c2 Bb2 c1Q Nc4 Qe8 d8N Bd3 d7 Bb4 Nf7 Bc2 d8N Be1 Ncd6 Ne7 Rb1 Qf8 Ba1 B8f5 Rb5 Bg6 Rc5 Rg8 Nh8 Qf5 Rd2 Rf8 Ne2+ Kh2 Nf4+ f2 Nfe6 g3 Qg4 g2 Qgg5 g1Q Qf6 Qf1 Re2 Na6 b8Q Rg8 Qa8 Nb8 Qa7 Rf8 Rd2 Qe2 Qd7 Re8 b7 Rf8 Bc3 a1Q Bb2 Qa5 Ba1 Qc7 Rd3 Qc8 Rb3 Qa3 Rb2 Qb3 Nc7 Qf7 Nde6 Qg7 Bh1 Na6 b8N Rf7 Nc6 Nb8 Na5 Rf8 Qd3 Rf7 Nab7 Nec6+ Kc4 Nd8 Kd4 Re7 Bc6 Re8 Nf8 Re5 Nfe6 Re3 Qd2 Ra3 Qe3 Ra4+
3K1kq1/Q5R1/nrrP1B1Q/RB3p2/2B1br2/Nq4n1/n4Pp1/N1B1BN1r w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 e3 d5 Ra3 d3 Qe2 d4 Qd1 e6 Ra1 d2+ Ke2 d3+ Kf3 Bc5 Kg2 Bd4 exd4 Qd6 Qf3 Qe7 Qd1 Qd8 Kh3 a5 Kg4 g5 c4 a4 h4 a3 b4 f6 h6 a2 h7 Ra3 h5 Qe7 b6 Qd7 h6 Qd8 c5 Qe7 b5 Nc6 b7 Qd8 b8Q Na5 b6 Qe7 c6 Nb7 c7 Ra6 d5 Qg7 d6 Ne7 Qa7 Qg8 Nf3 Nc5 b7 Rb6 b8N e5+ Nd7 e4 Rg1 e3 Na3 e2 Nh2 Bb7 c8B Be4 Ba6 e1R Bc4 Na6 Nc5 Nf5 Nb3 Ng3 Qe2 d1R Qe3 d2 Bb5+ Rc6 Bfc4 Kf8 Nf1 Re2 Qf4 Rde1 Rg2 d1N Qd2 Nc3 Rg1 Qg6 Qde3 Rg8 h8B Rb2 h7 Rg7 Qf4 Rf7 Qfe3 Qg8 Qf4 Nh1 Kh5 g4 Qh6+ Ke8 Bg7 g3 h8B Rd1 Rb1 Re1 Na1 Rb4 Rb2 f5 Kg5 Rb7 Kf6 Rb6 Rd2 Rd1 Rd5 Re1 Nb3 a1Q Rg2 Qb1 Na1 Qb3 Rc5 Qf8+ Ke6 Rd1 Bf6 Na2 Bc3 Ra4 Bhf6 Qg7 Be1 Kf8 Qh2 Qg6 Kd7 Qg8 Kd8 Rb4 Qhh7 Ra4 Rh2 g2 Qh6+ Qg7 Rh4 Ng3 Rg4 Rb4 Qh4 Qg8 Rg7 Rd3 Qh5 Rf3 Qh6 Rf4 Ba4 Rh4 Ra5 Rh1 Bab5 Bd3 Bd5 Rf4 Bdc4 Be4
4QK2/pprn1b1r/RQ4B1/5Q2/P2n2R1/B3PQ1q/1BNQ2qq/1qN1r2k w - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Be7 h4 fxg4 Ba3 g3 Bb2 g4 Bc1 Bg5 hxg5 Kf8 Nf3 Ke7 Ng1 Ke8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 h5 Kd6 Ke4 f4 g2 c4 g3 c6 h4 e3 h3 f5 h2 c7 Rh5 f6 Ne7 g6 Rg5 g7 Nec6 g8Q Na5 c5 Rf5 c6 Qe8 f7 Rf3 f8B Qg6+ Ke7 d5 e6 d4 Qf7 d3 Na3 d2 Ne2 g1Q Nc2 g2 Bb2 Rh3 Nc1 Nb3 a4 Bd7 c8Q Nd4 c7 Be8 Qd8 Nd7 c8Q Rh7 Qb6 Qg8 Qe1 d1R Qd2 Re1 Rb1 Qf2 Rg1 h1Q Bb5 Qf5 Bd3+ Kf3 Qcc5 Qf4 Bg6 Rc8 Qcb5 Kg3 Qf5 Qf1 Qf3+ Kh2 Qf5 Rc7 Qf3 Rh6 Q7f5 Bf7 Qdd1 Qg7 Qd2 Bg8+ Ke8 Rh7 Bfa3 Qd3 e7 Bf7+ Kd8 Qh6 e8Q Qh3 Ke7 Qe2 Rf1 g1Q Ra1 Nb8+ Kf8 Qgg2 Rg1 Qef1 Rb1 Qb5 Bc3 Qbe2 Rb4 Qd3 Bcb2 Qb3 Rb5 Qa2 Ra5 Qb1 Ra6 Nd7+ Ke7 Qf2 Rg4 Q1g2 Qfd3 Kh1 Qdf5 Ne5+ Kf8 Qfg3 Qb3 Qgh2 Qb6 Nd7+
1b4bR/1rpq2NN/1qN4B/2k4b/n2N1P2/qn1B1pQ1/2P1NR1Q/2q2B1K w - - 0 1 illegal: No proof kernel
3Qnq1r/2pP4/pRnNNR2/2r1BQQ1/3R1r1R/qb2kB2/1KP2n2/1R1r4 w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 g5 fxg5 b5 axb5 Bh6 Ra5 Bg7 Ra1 Bf8 h4 e6 g4 Bd6 h5 Ke7 g6 Ke8 h6 Bf8 g5 Bg7 hxg7 Qd3 Nf3 Qd7 Ng1 Qd8 b4 Ke7 d4 Kd6 Kd2 Kd5 Kc3 f5 b6 h5 b7 e5 b5 a6 b6 e3 Bb2 Ke4 d5 e2 d6 e1Q+ Nd2+ Kf4 d7 h4 Nf3 e4 Rb1 h3 Bg2 e3 Nd4 h2 Ne6+ Ke5 Qh5 e2 Bf3 Qc1 Ne4 e1R Nd6 Nf6 g8R f4 g7 Rd1 Rf8 Nc6 g8Q Ne8 b8R Bb7 Rf6 Qe7 Qhf7 Qf8 g6 Rh5 g7 Rf5 Qh8 Rg5 g8Q Rf5 Rg1 h1N Rg4 Nf2 Rh4 Rh5 Ba1 Qe3+ Kb2 Qc5 Ng7 Kd4 Ne6+ Ke3 Qfg6 Re5 Qf5 Qa5 Qgg5 Rc5 Rd8 Rc8 Qhg8 Ba8 b7 Qa4 b8R Bb7 Bg4 Ba8 Rb4 Bb7 Q5g7 f3 Rd4 Ra8 Rb8 Qa5 Rc1 Qa3+ Kb1 Qe7 Q8h7 Nd3 Ng5 f2 Rd5 f1R Be5 Na5 Rd4 Bd5 Ne6 Nc6 Rb6 Bb3 Qgg5+ Rf4 Bf3 Ng7 Qg8 Nf2 Qe8 Qf7 Qe7 Rh8 Qd8 Rg1 Rcd1 Ne8 Rf1 Qf8 Rfd1 Qb4 Kb2 Rf1 Rc1 Rd1 Rb1 Qa3+
kr1r1bBr/b2r2Q1/2p5/p1Rr1N1Q/N4K1B/PnQ3r1/NqP2N2/2N1R3 w - - 1 2 legal: proof: g4 f5 h4 e5 d4 g5 dxe5 a5 b4 b6 b5 Ba6 bxa6 Nc6 Bh3 Nd4 Bf1 Ne6 Nf3 fxg4 Ng1 g3 Nc3 g4 Nb1 Ng5 hxg5 Bc5 Nf3 Bd6 Ng1 Bf8 Kd2 d5 Ke3 Kd7 f4 Kc6 a7 Kb7 e6 h5 g6 g2 f5 b5 a3 d4+ Kf4 g3 e4 c6 e5 d3 g7 d2 e7 h4 e8Q b4 e6 h3 f6 h2 f7 b3 e7 b2 Qf3 d1R Nc3 b1R Bc4 Rb5 Na2 Qd5 Ne2 g1B Qc3 Rb8 a8N g2 Nb6 Rd8 Na4 Nh6 g8N Ka7 Nf6 Rh7 Ng4 Rh8 Nf2 Rbb8 Bd2 Qb5 Be1 Qb1 Nec1 Nf5 Bd5 Qb2 Bb3 Bg7 f8Q R1d5 Qh5 Nd4 e8N Ka8 Nd6 Rd7 Qe7 Rhd8 Nf5 Bf8 Bc4 Nb3 Qeg7 Rd1 Bg8 R1d5 Ne4 Bd4 Bh4 g1R Nf2 Rg3 Re1 h1R Re5 Ba7 Rb1 Rd2 Rc5 Rhh3 Ne2 R2d5 Re1 Rg5 Nec1 Rhg3 Qhg6 Rh5 Q6f7 Rh6 Qh5 Rh8
4bQbK/1rP1pRp1/1RR2bB1/5NB1/1RQ1n1N1/kn5Q/4RnPb/4b1r1 w - - 0 1 illegal: No proof kernel forced: wxDB
1Q1N4/p1p1bPQ1/K1B1R3/PnN2bb1/1q2rk2/2NBN2b/5Bn1/3nn1NR w - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 bxc4 h3 f5 gxf5 g4 h4 Na6 Nh3 Rb8 Ng1 Rb6 Na3 Rg6 Nb1 Rg5 hxg5 Ba3 Nc3 Bd6 Nb1 Bf8 Kd2 Kf7 Kc3 h5 b4 d5 a4 g3 e4 h4 f4 g2 b5 h3 g6+ Ke7 a5 h2 g7 Rh3+ Bd3 Qd7 b6 Rh7 f6+ Ke6 b7 Bd6 b8Q Rh6 f7 Bc5 Be3 Rh5 Bf2 Ne7 g8N Qb5 Nf6 Ng6 Nd7 Nb4 Qg4+ Rf5 Ra3 Nh4 Qg7 Nc2 Rb3 Qa4 Rb6+ Bd6 Rc6 Na3 Kd4 Rg5 Nc3 Qb4 Rb6 Rg4 f5+ Ke7 e6 Nb5+ Ke3 Rf4 e5 d4+ Ke2 Rg4 Nc5 Re4+ Kd2 Kd8 f8N Be7 f6 Ke8 Ne2 g1N f7+ Kd8 Kc2 Ngf3 Ng1 Ng2 Nd5 Qe1 Ne3 c3 Kb3 c2 Ka4 c1B Nf1 Bcg5 Ne3 Qd2 Rc6 Nfe1 Ra6 Nd6 Rc6 Nb7 Kb5 Qb4+ Ka6 Nd6+ Qb7 Bd7 Qb5 Bef6 e7+ Kc8 e8N Bh3 e6 Be7 Qb6 Nb5 Nf6 Kd8 Nfd5 Kc8 Bc4 d3 Nc3 d2 Bd3 d1N Rd6 Bd8 e7 Bf5 e8B Bde7 Nfe6 Bh3 Nf3 Bf5 Rg1 h1B Bc6 Bh3 Nd8 Bf5 Re6 Bh3 N5a4 Bf5 Bd5 Kd7 Qb8 Bh3 Rf1 Bf5 Ng1 Bh3 Rb6 Bf5 Bc6+ Kd6 Nc5 Bh3 Qh6+ Ke5 Qg7+ Kf4 Bd7 Nh4 Re6 Bf3 Bc6 Bfg4 Nf3 Nhg2 Rh1 Bf5 Ng1 Qb3 Kb7 Qb2 Ka6 Qb4
B4B2/B3nQK1/3k3N/B2N3R/3rrRBn/1Pp1Rn2/1rPprbb1/2n1Q3 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 fxg4 h4 g3 Kd2 g4 Ke1 Qg5 hxg5 Kd8 Be3 Ke7 Bc1 Ke8 Kd2 Ke7 Kd3 d5 Kd4 a5 e4 h5 f4 g2 e6 c5+ Ke5 d4 f5 c4 b3 h4 b6 g3 g6 a4 b7 a3 g7 a2 Bd2 d3 Nh3 g1R Nf2 h3 Be2 g2 Ng4 h2 Nc3 Na6 b8B Rh4 Qe1 Nc5 Nh6 Ra4 Ba7 Bb7 Bg4 Ba8 Rb1 a1R Rd1 Rb1 f6+ Kd8 f7 Kc7 e7 Rb2 e8B Ne7 Kf6 Kd6 g8Q Rf1+ Bf5 g1N Nd5 Nf3 Ba5 c3 Bg4 d2 Bc6 Nd3 Ra1 Rd4 Ra4 Rf2 Rc4 Nc8 Rb4 Be7+ Kg7 Nc1 f8B Re2 Qf7 Bb7 Rf1 h1N Rb5 Ng3 Rc5 Ba6 Ba8 Bb7 Rf2 Ne5 Rf4 Nf3 Kh8 Nf5 e5+ Kd7 e6+ Kd6 Bg7 Bd8 e7 Bb6 e8R Nce7 Bf8 Rde4 Rb5 Bf2 Rc5 Rh5 Kh7 N5h4 Kg7 Rhe5 Nb4 Re6 Rh5 Rd4 Nd5 Ng5 Ne3 Bg2 Nd5 R6e3 Rb8 Ngf3 Rb4 Rdd3 Rbe4 Rd4 Ree5 Red3 Re3 Re4 Be6 Rdd4 Bh3 Ne5 Bg4 Nef3
1bQqn1Qr/B1n2b2/2RppB1P/b5Q1/r2rP3/N2R3K/1p2k1N1/QQ3N2 w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 h5 dxc5 f5 g4 Rh6 gxf5 Rh7 Bh3 Rh8 Bg4 hxg4 Kf1 Kf7 Kg2 Kf6 c4 Ke5 a4 Ke4 h4 g5 f4 b5 h5 b4 h6 d6 f6 b3 c6 e6 a6 g3 a5 b2 f5 g4 c5 Rh7 f7 Qb6 c7 Rg7 f6 Ne7 a7 Ba6 c8Q Bb5 a6 Nd7 c6 Qe3 c7 Bc4 Ra3 Rh7 Nf3 Qb3 Nfd2+ Ke3 Nf1+ Ke4 Qd8 Bb5 c8Q Rh8 Be3 Bg7 f8B Nd5 f7 N7f6 Be7 Nc7 f8N Be8 Ng6 Qb6 Rd3 Bf7 Nf4 Nfe8 Na3 Bc3 Bf6 Ba5 Qb1 Qb8 Rh5 Qb6 Rc5 Qb8 Kh1 g2+ Kh2 g1R Rc6 g3+ Kh3 g2 Bc5 Qb6 e3 Kf3 Qe7 Rb8 a8Q Rb7 Qab8 Ra7 Bcd4 Ra8 a7 Kf2 Ng3 Rc1 Nf1 g1B Ng2 Rc4 e4+ Ke2 Be3 Rd4 Qed8 Qc5 Qb5 Qb6 Qg5 Ng7 Qf8 Nge8 Qfg8 Qb8 Qa6 Qd8 Qc8 Rb8 a8Q Rbb4 Bf4 Bf2 Bh2 Ra4 Bg1 Rd5 Qaa6 Ba7 Bc5 Bb8 Ba7 Bd2 Qc4 Bb4 Qca2 Ba5 Qaa1 Rdd4
N2q2R1/R1n5/1RP1p1rQ/1rbbQ1nQ/1P4BQ/3kpp1N/1n5B/3K1bQ1 w - - 0 1 illegal: No proof kernel
4QR2/1q1BK1Pp/1QpBbrn1/n1P3k1/3Qn2b/1r2b3/3BNp2/1QNR1Q2 w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 g5 axb5 Qf6 h4 Qf4 d4 Qh2 d5 Ba3 d6 Bxd6 hxg5 Bf8 Kf2 Ke7 Ke3 d5 Kd4 f5 Kc5 a5 g4 f4 b4 d4 c4 c6 e4 a4 b6 f3 b7 d3 e6 a3 g6 Kf6+ e7 f2 b5 d2 g5+ Kg7 e5 a2 Kd6 Qf4 b6 Nh6 c5 Qb4 e6 Ra3 Nc3 Bd7 Nge2 Rb3 Bh3 Qa3 Qf1 d1N Bd2 Rb4 Nc1 Ng4 N3e2 Ne5 Bg4 Na6 b8Q Nb2 b7 Qb3 Qd8 Rb6 b8B Nb4 Rh3 Bc8 Rf3 Nd5 Rf4 Rb5 Qb6 Nc3 Rb1 a1B Rf6 Kg8 g7 Ng6 Bf5 Bb7 Kd7 Ne4 e8Q Nc4 e7 Na5 Qed8 Bd4 e8Q Be3 Bd6 Ba6 Qdb8 Bc8+ Kd8 Qb2 Bd7 Rb3 Qe5 Be7+ Ke8 Rd3 Qd4 Qb5 Rf4 Qa6 Ra1 Qb7 Qb1 Rb3 Qc7 Bf6 Qb6 Be5 Rf6 Bg3 Rf5 Bh4 Rf4 Nf8 Ke7 Ng6+ Kd8 Ra3 Q1b5 Nc4 Be8 Ra7 Nd3 Ra2 Rd1 Ra5 Ndc1 Nf8 Qb1 Ra3 Rf3 Bf5 Bd7 Kf7 Rf4 Kg6 g8Q+ Kh5 Q1b5 Na5 Ke7 Be6 Qb1 Rb3 Rf6 Kg4 g6 Kg5 Qf7 Rg8 g7 Rh8 Qe8 Ng6+ Kd8 Rf8 Rf4 Rf5 Rf3 Re5 Rf7 Rf5 Rf8 Nh8 Ke7 Rf4 Kd8 Rf6 Ke7 Ng6+
1b2b2Q/2BPnNp1/Q7/2rpKQpn/BBn1R3/N3RQ2/3QqP2/r3r1k1 w - - 0 1 illegal: No proof kernel
2Qr3N/2npBQ1b/B1KRqp1P/2N2bb1/nPB2N1B/6r1/1p2B2k/2R2r2 w - - 0 1 illegal: Other
8/pn1P1k1N/R3r2Q/B1p1B1r1/N3RB1q/1nR4P/1nQ2pB1/bKB1r2b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 c5 Kd2 g5 Kc2 f5 e4 g4 b4 f3 e5 f2 b6 g3 h6 g2 h3 f4 d6 f3 h7 Kf7 b7 Qa5 d7 Qd8 e6+ Ke7 d5 Qa5 d8B+ Ke8 b5 Bh6 d6 Nc6 b8B Nf6 e7 Kf7 e8R Ne5 b6 Qe1 d7 Bb7 Ra6 Nc4 Re4 Bg7 Be5 Nb2 Nc3 Rg8 h8Q Ne8 Kb1 Nd6 Qc2 Re8 Bc7 Re6 Na4 Rae8 Qh6 Bc6 Bf4 Nb7 Bce5 Bf6 Bc3 Rg8 Ba5 Rg5 Be5 Nd3 Bf4 Ba1 Be5 Nb2 Rh2 Nd8 b7 Bd5 b8B Nb7 Bf4 Qb4 Bbe5 Qd4 Ne2 g1R Bg2 Re1 Ng3 f1N Nh5 f2 Rh1 Qb4 Nf6 Bc6 Nh7 Nd2+ Ka2 Nb3 Kb1 Qc3 Rf1 Qg3 Rh1 Qh4 Rf1 Re2 Rd1 Re1 Rd3 Bb5 Rde3 Be2 Rc3 Bf3 Bf1 Bh1 Bg2 Rd1 Ka2 Rg1 Kb1 Re1
b1B2krR/pP2Nq2/1b1PQ1rp/BQN3nQ/1b2rp1Q/8/n2QN3/RK6 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 b4 c5 d4 c4 Kd2 c3+ Kc2 f3 g4 f2 b6 f4 b5 Qd7 d6 Bg7 e5 Qf7 e6 Qc7 e7 Qd7 b7 Be5 g6 Qe6 d5 Bd7 g5 Nc6 b8Q+ Nd8 b6 Qf7 g7 Nh6 g8Q+ Qf8 g6 Bd4 g7 Bc5 Ba6 f1R Qd2 Re1 Bc8 Ba3 Ne2 Bb4 Qe6 Qf7 g8N Nc6 Qb7 Rg1 Qa6 Rg4 Qb5 Rg6 Ba3 Rb8 Kc1 c2 Nbc3 Ra8 Ne4 Rb8 Kb2 c1B+ Kb1 Bb2 Nc5 Bd4 Bb2 Bf2 Bc3 Bg1 Bb7 Bc8 Ba6 Bb7 Rh4 Ba8 Bc8 Be3 b7 Bd4 Nb3 Bb6 Nc5 Qf8 Rh5 Nf7 Rh3 Ng5 Rh4 Ba3 Ba5 Bb4 Qf5 Ne4 Qh5 Ng5 d7+ Kf7 d8Q h6 e8Q+ Kg7 d6 Qf7 Ne7 Rg8 Qed7 Re8 Rg4 Kf8 Qf5 Ba3 Qf6 Nb4 Qdd7 Na2 Qde6 Bb4 Rg1 Ne4 Qfh4 Ng5 Qeh3 Kg7 Bd7 Nf3 Ng8 Re4 Qe6 Rg5 Ne7 Rh8 Rg4 Kf8 Rg1 Rge5 Rg6 Rg5 Bc8 Rg4 Rg7 Rg8 Rh7 R4g6 Rh8 Ng5
Rq1B1R1N/3KN3/3RRR1N/r2P1nqn/3pB3/3PkpQ1/4p2Q/2br1b1r w - - 0 1 illegal: No proof kernel
NB1R4/1nN1Q1qb/1r4R1/NPb2pRq/q3Br1k/2Kn2p1/p3N1QP/6N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Ke7 b4 Kf6 d4 Kg5 Kd2 a5 h6 f5 d6 c5 b6 a4 b7 a3 b5 a2 d7 f3 e5 g6 e6 c4 e7 f2 e8N Ra7 d5 Nc6 b8N Ne5 h7 Ne7 d6 N7c6 Qe2 Qe7 d8N Qg7 d7 Ra4 Bg2 f1Q Nc3 Nd3 Nc7 Qf3 Nba6 Bc5 Nb7 Na5 d8R Be6 Na8 Qh5 Be4 Kh4 N6c7 g5 Qg2 g4 Nce2 c3+ Kc2 Bf7 Bf4 Bg6 Bd6 Re8 h8Q Re6 Qe8 Bh7 Bf4 Rb6 Qe7+ Qf6 Rd1 Rc4 Rg8 g3 Rg5 Qg7 Bd6 Nc6 Na5 Nd8 Kb3 c2 Rc1 Rd4 Kc3 Nb7 Bf4 Ne5 Rd1 Rb4 Rd6 Nd3+ Be5 Rd4 Rdg6 Rb4 Nh3 Rd4 Rd1 Ra4 Nhg1 c1Q+ Kb3 Qf4 Kc3 Nc1 Rd8 Nd3 Ne6 Rd4 Bb8 Qfg4 N2f4 Qd1 Nfe2 Qa4 Nec7 Qf8 Bd5 Rf4 Be4 Qg7+
4k2q/N1B3n1/RRr1b1pR/Q5Rr/Q1P1B1pb/2NK1pP1/4n1R1/4N1nq w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 f4 Rh6 fxe5 Rh7 Qd4 Rh8 Qg4 hxg4 Kd2 a5 c4 d5 b4 f5 h4 g6 e4 f4 c6 d4 g3 a4 h5 a3 h6 a2 b6 d3 c7 Ra7 b7 Kd7 h7 Ke7 b5 Bd7 c8N+ Ke8 b6 Bb4+ Nc3 Bc6 e6 Ra5 e5 Ra7 e7 Qd4 Rh2 Bb5 Bg2 Kf7 e8R Ba6 Nf3 Ne7 Ne1 Nf5 Be4 f3 Rg2 Nc6 b8R Ng7 b7 Be7 Ba3 Bd8 Bd6 Bh4 Bc7 Qg1 Rd8 Nd4 Rd5 Ke8 e6 Ne2 e7 Qh1 Rg5 Ng1 Ke3 d2 Kd3 Rf8 h8Q d1N Qh5 Rh8 Ra8 Bb5 b8R Bd7 Rb6 Ra6 Na7+ Bc8 Rab1 a1Q R1b2 Kf7 Rh2 Be6 Rbg2 Rh6 Rb1 Rc6 Rb6 Ne3 Rh3 Nc2 Rhh2 Nd4 e8Q+ Kf6 Rh3 Nde2 Rhh2 Rc5 Qa4 Ke7 Ra6 Rc6 Rb8 Kf7 Rbb6 Ke8 Re5 Be7 Qf5 Rh8 Rh6 Bh4 Qh5 Rf8 Qg5 Rf5 Qd2 Rh5 Rg5 Qa3 Qa2 Qf8 Qa5 Qg8 Q2a4 Qh8
2Q1b1Q1/k2nB2R/2nqqPBp/2r2r1N/p1B5/N1Pp4/N2R1b1K/1r1B2B1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 d5 b4 Kd7 f4 Kc7 Kf2 Kb7 Kg2 e5 b6 a5 g6 a4 b5 e4 g7 e3 g5 e2 f6 e1R c3 d3 f7 d2 g6 d4 f5 d3 f6 Ne7 g8B Re6 g7 Re5 Qb3 d1Q Kh2 Rc5 Be2 Qf1 Be3 Qf3 Ra2 Qe4 Rd2 Rc6 Bd1 Bf5 Ne2 Qc4 Na3 Rc8 Nf4 Nd5 Bg1 Qc5 Nh5 Be7 f8B Nd7 Bf7 Qe8 g8B Nb4 Bg6 Ra5 Bc4 Nc6 Qa2 Kb8 b7 Ka7 b8N Qb6 Na6 Bc5 Qb3 Qe6 Nb4 Bf2 Na2 Qd4 Be7 Qdd6+ Kg2 Rb8 Rh3 Rhc8 b6+ Ka8 b7+ Ka7 Rh4 Bg4 Rh2 Rf5 Rh3 Nce5 Kh2 Rc5 Qb5 Be2 Qc6 Bf3 Qc8 Bc6 Rg3 h6 Qg8 Bb5 Rg5 Rbc8 Rg3 Nc6 b8Q+ Ka6 Qc7 Rb8 Qcc8+ Ka7 Bf7 Nce5 Rg7 Bc6 Rh7 Rb1 Qg5 Nb6 Qg3 Be8 Qg8 Nbd7 Bg6 Nc6+
Nq1RN3/1k3N2/1qnp2Q1/p3Q3/2Pb2r1/rBp3KN/2Prb1Nn/2QR1B2 w - - 0 1 illegal: No proof kernel
8/2q4p/2R1n3/PQQQBK1B/NQBr1R2/1nbp4/3qpnNP/1Qr3kb w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 b4 axb4 f4 Qc7 fxg5 Qd8 Kd2 Kf7 Kd3 d5 g4 b5 c4 e5 a4 d4 Ke4 b3 g6+ Kf6 c6 d3 a5 b4 c5 b2 c7 b3 g5+ Kg7 c6 Ne7 Nf3 Nd5 Nc3 b1N Nh4 b2 Na4 Na6 Bf4 Bb4 Ng2 Bc3 Be2 Bb7 c8Q Ne3 Bh5 Ng4 Rf1 Qc7 Qe8 Rd8 Bg3 Rd5 Rf4 Rc5 Qb8 Rd8 Ra3 Ba8 Qb5 Rdd5 Rb3 Rd6 Rb4 Rd8 Rc4 Nf2+ Kf3 Rd4 f6+ Kh8 f7 Kg7 Ke3 Nd2 Qb1 Nb3 Kf3 e4+ Ke3 Kf8 g7+ Ke7 g8Q Ke6 f8Q+ Ke5 g6 Bb7 g7 Ba8 Qe1 b1Q Qfb8 Qa1 Qb1 Qb2 Qb4 Qc2 Q8b5 Bb7 Rf7+ Kd5 Be5 Qd1 Kf4 e3+ Kf5 e2 Qa8 Qc1 g8B Qd2 Kf6 Ke4 Qd8 Qd7 c7 Ba8 c8Q Nc7 Rf8 Ne6 Rf7 Rc7 Rc6 Qd6 Qdd7 Bb7 Qf8 Rc8 Qfe7 Qc7 Qec5 Ba8 Rg7 Bb7 Rg4+ Kf3 Kf5 Ba8 Nh4+ Ke3 Rf4 Bb7 Rb6 Bg2 Qdd5 Bh1 Bgf7 Rg8 Rc6 Rg1 Bg8 Rc1 Qd8 Ng5 Bc4 Ne6 Qdd5 Nd1 Nf3 Kf2 Ne1+ Kg1 Ng2 Nf2
2bQ2r1/bqR2Q1p/4pN2/2npPN1R/B4RK1/PrN3R1/2k1nqBR/2q5 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 h4 c5 hxg5 f4 d4 Ra6 dxc5 Ra8 Be3 fxe3 Ke2 Kf7 Kf3 Ke6 g4 Ke5 c4 d5 a6 b5 c6 e6 a3 b4 c5 b3 c7 b2 a7 e2 g6 e1Q c6 Na6 g5 Nh6 g7 Nf7 g8R Qd7 g6 Qd2 g7 Kd4 e5 Nh6 Bg2 Kd3 Ne2 Bd6 Nbc3 b1Q Ng3 Nf5 Rh2 Nc5 Kg4 Qd8 f4 Ne4 Qf1+ Kc2 Qf3 Nd4 f5 Bb4 f6 Qa2 f7 Nf5 f8R Qc4 Rah1 Ba6 c8B Qcd4 c7 Qb6 Bd7 Nc5 c8R Qe7 Rc7 Nd4 Rf4 Bc8 Nf5 Rb8 a8Q Ne2 Bc6 Qc1 Ba4+ Nb3 Rh5 Qf2 R1h2 Bc5 Qa5 Rb5 Qa8 Ba7 Qb8 Bb7 Qd8 Bc8 Ng3 Qb4 Kh3 Bd7 Rfh4 Qbc5 Qf7 Qb4 Rf4 Bc8 Nf5 Qd6 Re8 Qdc5 g8N Qb6 Nf6 Qb7 Rg8 Rb6 Rg3 Rg8 Be8 Nc5 Ba4+ Rb3 Kh4 Rf8 Kg4 Rg8+
6B1/Q5p1/1Rn1qp1B/2Q4r/2NPP1N1/1pN2K1n/bq2Rb1N/3NrRbk w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 e4 c5 a4 b5 d4 c4 h4 f6 d6+ Ke6 h6 c3 d7 c2 h7 b3 h5 b2 h6 b4 a5 b3 a6 Bd6 a7 Bb4 Nh3 Bc5 Ra2 Na6 Qh5 Nc7 Bc4+ Nd5 Kf3 Qc7 d8R Bb4 Rf1 Ne7 Nf2 Nc6 Nc3 b1Q Nfd1 Ba6 Rb8 Qc8 Rb6 Qb2 Bg5 Ke7 e6 c1B Be3 Nf4 Qc5+ Ke8 e7 Nh3 Bg8 Qe6 Bd2 Rc8 a8Q Bd3 Qa7 Bb1 Bf4 Be3 Bg5 Qa3 Re2 Bg1 Bd2 Ba2 Be3 Rc7 Bc1 Kd7 e8N Qb2 Nd6 Ke7 Nc4+ Ke8 Ne5 Rc8 Ng4 Ra8 Nh2 Rc8 Nb5 Be1 Nbc3 Bef2 Bf4 Qd7 Bd5 Qe6 Bc1 Rf8 h8N Rg8 Ng6 Rh8 h7 Ra8 Ne7 Kf7 Ng8+ Kg6 Nh6 Kh5 N6g4 Kh4 Bh6 Rac8 Bc4 Ra8 Qf7 Ra5 Qa7 Ra8 h8N Rc8 Qf8 Rh5 Qc5 Ra8 Qa6 Qd5 Nf7 Bb1 Qb7 Ra1 Nde3 Ba2 Nfe5 Re1 Ned1 Qd7 Bf7 Qe6 Bg8 Ng5+ Kf4 Kh3 Nc4 Kg2 Qa8 Kh1 Qa7 Nh3+ Kf3 Qb1 Qe5 Qc1 Qc5 Qb2
K1q1BQ1r/4Pp1n/Nb2B2N/B2N2pk/1qRB1P1p/1R3nr1/2Q4b/5b1B w - - 0 1 illegal: No proof kernel
Br4RB/b2p1KQ1/8/pqrP1QRN/Bq3N1Q/4P1B1/pB2qn2/n3kb2 w - - 0 1 legal: proof: f4 b5 g4 c5 b4 h5 bxc5 e5 gxh5 Qa5 fxe5 Qd8 a4 bxa4 Kf2 Ke7 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 h4 g5 c4 a5 c6 a3 e3+ Kc5 d4+ Kb4 d5 f6 Kg6 a2 c7 g4 h6 f5 c5 f4 e6 g3 e7 f3 e8Q f2 h7 g2 h5 Na6 c6 Nh6 Nh3 g1Q+ Qg4+ Kb3 Qe7 Kc2 Bb5 f1Q Nc3 Qe2 Qh4 Qgf1 Qf5+ Qd3 Nf4 Nb8 Nce2 Kd1 Bb2+ Kd2 Ba4 Qd1 Rg1 Be7 Rg5 Qf1 Ng3 Ba6 c8B Qb6 Bb7 Qfe2 Rg1 Qb4 c7 Rc8 h8B Nc6 Bhe5 Ng4 h6 Nd4 h7 Nf2 h8B Qdb5 Kf7 Nb3 Ngh5 Rab8 Ba8 Na1 Rg8 Bd6 R1g5 Bc5 Bd6 Ke1 Bde5 Rd8 c8Q Ba7 Qc4 Rdc8 Qd4 Rc5 Bd6 Qb6 Qg7 Bb5 Ng6 Bd3 Bg3 Q6b5 Ngf4 Qd1 Qh2 Bf1 Qh4 Qde2
2k2Bq1/2Bp1r1P/1n2R3/2BKRrn1/1QNQBRp1/3b1p2/P2qrB2/2b1N3 w - - 0 1 illegal: No proof kernel
4r1nk/1P1b1p2/n1Q2N2/RPR2p1n/2K1Nb2/R1q2Qp1/1Br1R3/1B2q1BR w - - 0 1 illegal: No possible last move, all moves rejected
1N1R4/1p2Pb1N/3Qnp1b/brnN3N/1q2R3/1pr2qPK/kBB5/N3Q2R w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kg3 h5 e4 c5 a4 c4 d4 h4+ Kh3 c3 g6 b3 a5 c2 e6+ Kd6 g3 Qf6 e5+ Ke7 g7 Qf4 d6+ Kd8 d5 Qd4 d7 Kc7 d8N Nc6 d6+ Kb8 a6 Ka7 d7 Kb6 e7 Kc5 e8Q Kb4 a7 Qd3 e6 Qb5 Ne2 Rh5 Na3 Nd4 Nf4 Nf6 g8N Bh6 Bb2 c1B Bd3 Bd2 Bc2 Ne4 Nf6 Nc5 Nh7 f6 Nc6+ Ka4 d8R Ba5 Qe1 Qb4 Qd7 Rb8 e7 Nde6 a8N Re5 Kg4 h3 Nc7 h2 Qd6 Bd7 Kh3 Rc8 Ncd5 Be8 Nb8 Bf7 Nh5 Rc6 Rg1 Rc7 Rg2 h1Q+ Rh2 Qf3 Rh1 Rg5 Rd1 Rf5 Rd4 Rg5 Re4 Rc6 Nb5 Re5 Nd4 Rc7 Ba1 Ka3 Bb2+ Ka2 Bd1 Nd7 Nc2 Rc3 Na1 Ndc5 Bc2 Nd3 Nb6 Rb5 Nd5 Ndc5
b1N5/1R2K2b/Q4rpq/1rk1B1P1/3NRB2/pRPb1QnR/4pn1N/b4R2 w - - 0 1 illegal: No proof kernel
B1R5/1b1BNnBR/kP4p1/2QpK1b1/bP2B1Q1/np1r2B1/4bN2/2rq2R1 w - - 0 1 illegal: No proof kernel
r3R3/N3BPKB/2b1r3/Qp3b1B/4bpPn/R1p2N1k/qNQ5/1n1Bb2B w - - 0 1 illegal: No proof kernel
n4QQ1/Bk1Pp3/1B6/3p3n/pKN3PQ/2rRNRn1/BbBr2q1/nb2B3 w - - 0 1 illegal: No proof kernel
1RQN2bB/1nbp1Np1/nR3P1p/2n1KR2/R4nN1/qr1P2RQ/7r/k2B4 w - - 0 1 illegal: No proof kernel
b3Q2N/nBp2Q2/6rB/1Q1p1pPb/2P4R/1n1N1r1r/RQ1Q2N1/1K1q1kr1 w - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 b4 g5 b3 g6 Bd6 axb3 Ne7 b4 Ng8 b5 Bc5 Rh3 Be7 Rh1 Bg5 hxg5 Ke7 Ra4 Kf8 Ra1 Ke8 Kd2 Ke7 e4 Ke6 c4 a5 Kc2 h5 b4 f5 g7 d6 b6 f3 b7 f2 b5 a4 b6 a3 Ne2 h4 Bb2 h3 Bg2 f1B Nd2 h2 Kb1 Rh7 Ra2 Ra5 Nb3 Rd5 Nbc1 Na6 b8Q Nc5 b7 Rh3 Nd3 Nb3 Qd2 Ne7 g8N Nc6 Ne7 Rf3 Ng6 Na7 Nh8 Rc5 Bd4 Rc6 Bc5 Bd7 Bb4 Be8 Nef4+ Kd7 Bc5 Bh5 e6+ Ke7 e5 Ra6 Rg1 h1R Bb4 Rhh3 Rh1 Qd7 Qg8 Rb6 b8Q Qd8 Rh2 Ra6 Bh1 Bg2 Qb6 Rfg3 Bc5 Ba8 Bb7 Rf3 Ng2 Qd7 Bd4 Qa4 Qb5 d5 Qb2 Nc1 Qa5 Qd1 Qad2 Nb3+ Qdc1 Rb6 Qf7+ Kd8 e7+ Kd7 e6+ Kd6 Bg7 Ra6 Ndf4 Kc5 e8Q Rc6 e7 Rg6 Bh6 Kb4 Qa4+ Kc5 Qc2 Kd4 Nd3 Ke4 Qb5 Kd4 Qd2 Ke4 Rc2 a2+ Kb2 a1R e8Q+ Kd4 Qb1 Qe2 Qa2 Rg1 Qa3 Qd1 Ka2 Nc1+ Kb1 Nb3+ Qac1 Re3 Rb2 Ref3 Ra2 Rh4 Ne5+ Ke4 Ne3 Kf4 Ng2+ Kg3 Nd3 Qe2 Nde1 Kf2 Qcb2 Kf1 Nd3 Qd1+ Nc1 Rhh3 Rh1 Rhg3 Rh4 Qe2 Nd3 Rh3 Qde3 Qd2 Qf4 Qe2 Qfd2 Qd1+
4k3/1P1N1bpP/2pBb2R/2bb1K1Q/r2p2Rq/1RR2R2/1Q2Bn2/1nNr1N2 w - - 0 1 illegal: No possible last move
3q1R2/4R1pk/KR1Q1p2/3b1P2/2R1B1P1/r2rpqnN/NR3Q1B/r3qn1N w - - 1 2 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 e6 d4 Rh7 e4 Qd6 Qg4 Rh8 e5 Qd8 g3 Bd6 exd6 h4 Qh3 Qe7 g4 Qd8 Qg3 hxg3 Ke2 Kf8 Kd3 c5 Kc4 a5 b4 g2 h4 f6 f4 e5 b6 a4 Kb5 a3 f5 e4 b7 c4 h5 c3 h6 c2 d7 a2 h7 Ra6 d6 Qc7 d8R+ Kf7 d5 Qe7 d7 Rc6 d6 Nh6 Nd2 Na6 b8R Rc4 Rb6 Rg8 h8Q Rd4 Nh3 g1R Bg2 Qf8 Nf1 Qe7 Ng3 Bb7 Bf4 e3 Be4 Rg2 Rhc1 Nc5 Nh1 Rg1 Bh2 Nb3 Rb8 Nd2 d8N+ Kf8 d7 Bd5 Ka6 Nf7 b5 Nd6 Nc6+ Qd8 Qh4 Rd3 Qf2 Nf1 Nb4 Rh8 R8b7 Kg8 Rab1 a1Q+ Na2 Kh7 Rb2 Rg8 Rc7 Rf8 Rc4 Rf7 Rcb1 c1Q Rb7 Qc3 b6 Qe1 Ra7 Qe2 b7 Qf3 Rb6 Re7 R1b2 Qe1 b8R Ng3 Rcb4 Nc4 Ra4 Nd2 Rc4 Ndf1 Rab7 Qe8 d8Q Rd7 Qc7 Qd8 Qd6 Rc7 Rc8 Rc5 Re7 Rb5 Rbc2 Rb1 Rcb8 Ra1 Rcb2 Rg2 Qg1 Rc2 Qf2 Rcc3 Rbc8 Qd7 Rg8 Qd8 Rf8 Ra3+
nQ3n1N/2p5/1Q2P3/KB2qRRR/1p2p1n1/NQrqP1kb/Q1r5/Q3r1B1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 gxh5 e4 b3 Bd6 b4 Be5 fxe5 axb4 h4 Kd7 a4 g5 d4 b5 Kd2 f5 h6 g4 h7 f4 e6+ Kd6 h5 g3 h6 f3 a5 g2 a6 f2 a7 b3 Kc3 b2 Kb4 Qh4 Na3 b1R+ Ka5 b4 Nh3 g1N Nf4 Bb7 Be3 Rb3 Ng6 Rc3 Qb3 Nf3 Rg1 Nd2 Rg5 Nf6 Re1 Rc8 h8R Ng8 h7 Qg3 Rc1 Rc6 Rc5 Nf6 Rf8 Re8 h8Q Ng4 Rff5 Rg8 Qh6 Qh2 Nh8 Nd7 Qf6 Raf8 a8Q Qe5 Qb8 Bc8 Qb6 Rf7 Rb5 Nf8 Qg7 Ke7 Rh5 Rc3 d6+ Kd8 d7 Ke7 d5 Rc2 Qb8 Kd6 d8Q+ Rd7 Qdf6 Nc4+ Ka4 Nb6+ Ka5 Na8 Qfh6 Qg3 Qa1 Qe5 Ba7 Rf7 Qd2 Rc3 Qda2 Rc2 Rfg5 Rf3 Qb7 Rfc3 Qb6+ Ke7 Rc5 Kf6 Rb5 Qf5 Rc5 Ke5 Rb5 Kf4 d6 Ba6 d7 Qe5 d8Q Kg3 Qdb8 Rg7 Bh3 f1Q Bg2 Qf3 Bf1 Qd3 Rd5 Qed4 Rdf5 Qe5+ Qb5 Rd7 Bg1 Rd6 e3 Rdc6 Qb6 Rc1 Qa7 Re1 Qb8 Rc2 Be2 R6c3 Qc5 Qdd5 Bb5 Qd8 Be8 Bf1 Bb5 Qd3 Qcb6 Bh3
1r1qN3/BQ3B2/n2p1Nq1/2rPp3/1P4K1/rk1NBRRn/p3B3/B1nb1Q2 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Kf3 a5 d4 h5 g4 c5 b7 h3 d5 h4 b6 d6 f6 h2 g5 e6 g6+ Ke8 g7 Kf7 Be2 a4 Be3 h3 Nd2 a3 Kg4 a2 f4 c4 f5 c3 Ngf3 c2 Rf1 h1R Ne4 c1Q Ne1 h2 Rf3 Na6 b8Q Qc2 b7 Ne7 Nd3 Nc6 Qf1 Nd4 Rb1 Bd7 Rb3 Ba4 Qa7 Rc8 b8B+ Rc7 Qa8 Rc5 Ba7 Rh3 Ra3 Nb3 Rg3 Nc1 g8B+ Kf8 f7 Ke7 f8N e5 Ne6 Kd7 Ng7 Kc7 f6 Rg1 f7 h1N f8B Nf2+ Kf3 Qb1 Nf6 Bd1 Bd4 Rh8 Be6 Nh3 Kg4 Rg2 Bf7 Rg8 Bb8+ Kb6 Ba7+ Kb5 Ba1 Kc4 Qb7 Rf2 Rb3 Rf3 Ra3 Rh8 Nge8 Qc2 Bh6 Rf8 Ra5 Kb3 Be3 Qe7 Ng7 Rb8 Nge8 Qd8 Ra4 Qb1 Ra5 Rcc8 Rc5 Rc7 Rc4 Rc5 Rf4 Qc2 Ne1 Qe4 Nd3 Qg6+ Kh4 Qg8 Bf2 Qc8 Ne1 Ka3 Rf5 Rd3 Rff3 Qg6 Be3 Rb3 Nd3 Qd8 Rf4 Ka4 Rf5 Ra3 Rff3 Qh7+ Kg4 Kb3 Nb2 Qh6 Nd3 Qg6+
1n1r4/3qr2k/1nBp1K1p/3PbR1N/np2N1q1/P3BRQ1/Q1NrR3/N2N4 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 b5 hxg5 Ba6 c4 axb4 Qg4 b3 Qe2 b4 Qd1 Bb5 cxb5 Ra6 Nc3 Ra3 Nb1 Ra8 Ke2 Kf7 Kf3 Kg7 Kf4 c5 Ke5 e6 g4 c4 d4 b2 f4 c3 a3 c2 b6 h6 f6+ Kg6 f5+ Kh7 d5 Bg7 b7 Qb6 Ra2 Na6 b8Q Qb7 Nh3 Qc6 Qd2 Qb7 Nf2 Qb6 Nd1 Qc6 Rh3 Qc5 Bb5 Qb6 Rf3 Qa7 Bc6 Bf8 f7 Nf6 g6+ Kg7 g5 Bc5 f8N Rh7 Qg2 Be3 Nd2 b1N Nb3 Nc3 Na1 Kg8 g7 Na4 Bd2 c1Q Rb2 Bg1 Be3 Qc4 Re2 Qg4 Qf2 Bh2+ Qg3 Ne4 f6 Nec3 Qb5 Nb8 Qc4 Nb6 Qa2 Nca4 Rf5 Na6 Rf3 Rd8 Rf5 Kf7 g8N Nb8 g6+ Ke8 g7 Kf7 Kd6 e5 Ne6 Kg6 Ke7 e4 Nd4 d6+ Ke6 Qc7 f7 Qa7 f8R Qb7 Bf2 e3 Nf6 Qa7 g8N Rf7 Qg2 Bf4 Ne4 Kh7 Qg3 Re7+ Kf6 Qc7 Ndc2 Qd7 Rd2 e2 Be3 e1R Re2 Rf1 Nb2 Rc1 Re5 Ree8 Ne7 Bg5+ Kf7 Qc8 Ng6 Re1 Nf4 Rd1 Nh5 Rd2 Nd1 Re6 Rf5 Ree8 Rf3 Bf4 Rg8 Re5 Kf6 Qcd7 Rg5 Re7 Rf5 Be5+
B1r5/1pN3b1/2q1n3/2n4p/1B1pQrRB/KRBP3R/N1QrPB2/4qkn1 w - - 0 1 illegal: No proof kernel
Q3BK2/RB1p1b1q/n4Q1p/B2BB2Q/2q1q3/1P1r3P/1R1rbbkp/1N3N2 w - - 0 1 illegal: No proof kernel
2RK2n1/kNQBqr2/p5p1/3nb3/1Pn1BR2/N1q2NPr/3qp1B1/B2B1Q2 w - - 0 1 illegal: No extended proof kernel
1b1B1kn1/p6P/B1qp3p/3b1N2/PKNb4/Bn5q/rBB1Q1R1/3nQQ1R w - - 0 1 illegal: No proof kernel
4n1nR/p2Q2RN/b2P1BN1/q3p3/1pR4b/PnrR4/k1bqKQB1/2R4B w - - 0 1 legal: proof: e4 c5 h4 d5 g4 dxe4 b4 b5 bxc5 g5 hxg5 Nc6 f4 Bb7 g6 Rc8 g5 Nb8 f5 Rc6 g7 Rg6 fxg6 Bc8 Qh5 Na6 Qf3 Qd6 Qd1 Qd8 c4 Kd7 d4 Kc6 d5+ Kc7 c6 Kd6 a3 Kc5 c7 h5 d6 e5 Nh3 f5 Nf4 e3 Bg2 h4 Ke2 b4 Nd2 h3 Nf3 h2 Qf1 Rh5 Qf2 Bd7 c8R+ Qc7 Rd1 h1B Rd3 Bb5 Bd2 Rh7 Rc1 Be7 Be1 Rh3 Bd2 Kb6 c5+ Ka5 c6 Ka4 Be1 Qa5 c7 Bc4 Bd2 Bb3 Rc4 Bc2 Be1 Nh6 g8B Rg3 Bd5 Ng8 g7 Bf6 g6 Bh4 Nh3 f4 Nfg5 Rf3 Nh7 Rg3 Rd2 Kb3 Rd3+ Ka2 Ba8 Nh6 Rh8 Ng8 c8Q Nc7 Qd7 Ne8 Bd2 Ngf6 g8R f3+ Ke1 e2 Nf4 Rh3 Rg7 Ng8 Be3 Rg3 Bb6 Rh3 Bd8 Rg3 Bf6 Rh3 Qg3 f2+ Kd2 f1N+ Ke1 Nd2 Qf2 Ne4 Bd5 Nc5 Kd2 Rh2 Ke3 e1Q+ Kf3 Qa1 Ke2 Qd4 Bgf3 Qb2 Rf7 Qc1 Rdc3 Rh3 Re7 Bg5 g7 Nh6 g8R Bh4 Rg1 Ng8 Ng6 Nb3 Rg7 Qg5 Rc1 Qh6 Ba8 Rg3 Bfb7 Bc6 Re3 Bb5 Bh1 Ba6 Bag2 Rh3 Re4 Rg3 Rd4 Rc3 Rd3 Qd2+
n3BRRN/pk4K1/2prp3/B1b1qBnN/q3B3/P1P5/1rQq1Nn1/5B1Q w - - 1 2 legal: proof: e4 g5 f4 d5 fxg5 dxe4 b4 c6 h4 Na6 g4 Qd7 h5 Nb8 b5 Qc7 b6 Bf5 bxc7 Bg6 hxg6 Bh6 Nh3 Bg7 Ng1 Bf8 Kf2 Kd7 Ke3 Kc8 Kd4 h5 Ke5 b5 d4 f5 d5 h4 d6 b4 d7+ Kb7 d8N+ Kb6 c8B f4 g7 h3 a3 e3 g6 b3 g5 f3 Bd2 b2 Nf7 h2 Nh3 f2 Bf5 e6 Ba5+ Kb7 c3 e2 Nd2 b1Q Qc2 e1N Nf4 Ne7 Kf6 Rh5 g8Q Nc8 g7 Ng2 g6 Qb5 Rg1 h1Q Nh8 Nd6 Ne4 Na6 Qh7 Qa4 g8B+ Nf7 g7 Rh2 Nh5 Ng5 Bf7 Rd8 g8B Nc7 Be8 Bc5 Kg7 Na8 Bgf7 Rd6 B7g6 Nf4 Rd1 Qg2 Rd3 Qg3 Rf3 Ng2 Qh6 Nf7 Qhc1 Ng5 Rf4 Qd3 Q1d1 Qd2 Qf3 Nh4 Qh1 Ng2 Bh3 Nf3 Kg8 Qd1 Bd3 f1Q Qf2 Ngh4 Rf8 Nc7 Bgf5 Qfe1 Bhf1 Na8 Kh7 Qde2 Rgg8 Ng5+ Kg7 Qa2 Qd2 Re2 Qd1 Ng2 Nf2 Qd5 Bb1 Rb2 Bbe4 Qed2 Qc2 Qe5+
4n3/1p1NR3/B1pQb3/6bK/P1N2q1q/2BQ1Npk/1P2QQ2/Qrn2bRn w - - 0 1 illegal: No possible last move
N2n4/2NN1r1K/p1Q4p/rqb2r2/P1rR1N1P/5Qr1/N1k1pRRB/5b1B w - - 0 2 legal: proof: f4 c5 g4 f5 b4 d5 bxc5 e5 e3 Nc6 e4 Nce7 fxe5 dxe4 Bd3 f4 Bf1 Nf5 gxf5 Qd6 Ba3 Qd7 Bc1 Qd8 Ke2 Kd7 a4 Kc6 h4 Kd5 c4+ Kd4 c6 g5 e6 b5 f6 b4 f7 b3 c5 g4 c7 e3 e7 g3 Kf3 b2 e8N g2 c6 a6 Rh2 h6 Ne2+ Kd3 Ra2 g1R Rf2 Bg7 f8N Qd6 Nd7 Ne7 Bg2 Qc5 Kg4 f3 Nf4+ Kd4 Nc3 Re1 Bh1 b1R d3 Bb7 c8Q Rb3 c7 Nc6 Bb2 Qb6 Kh5 Qb5+ Kg6 Rf8 Kh7 Rf7 Ba3 Ra7 Bd6 Nd8 Rg2 f2 Qf3 f1R Raf2 e2 Na2 Rd1 Qa8 Rc3 c8N Rc4 Ncb6 Bd5 Qc6 Bf8+ Rg7 Rg1 Na8 Rf5 Rgg2 Rdf1 Bb8 Bc5 Nec7 Rb1 Nc1 Kc3 d4+ Kc2 Na2 Be4 d5 Rbd1 d6 Rdd5 Nf8 Rde5 d7 Rd5 Rh2 Rg3 Rhg2 Ne6 d8R Rde5 Rd4 Nd8 Qa3 Rb7 Nd7 Rd5 Rh2 Bg2 Qf3 Bf1 Rhg2 Rb6 Qb7 Rbf6 Qc6 Rf7+ Kh8 Ba7 Ne8 Rgg5 Nh5 Qb2 Bh2 Ra5 Nf4 Qb5 Nec7 Rgg7 Rd5 Rg3 Rd4 Rf8+ Kh7 Bc5 Re4 R8f6 Rd4 Rf7+
BB3nqk/1R1Knr1N/N1B1N1R1/r6p/1b1P4/1p1N2pQ/N2Q2P1/n3r2r w - - 0 1 illegal: No possible last move
3b2k1/B1B2pP1/3nrBN1/B1r1RP1K/1p2n1R1/1BrQp2n/2Q3q1/1nN3Q1 w - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b6 d4 g4 e5 g3 d6 Bd7 d5 a5 b4 axb4 e6 Bh6 hxg3 Kf8 exd7 Kg7 g4 Kg6 g5 Bf8 Ke2 Kg7 Kf3 e5 Kg4 c5 a4 b5 f4 e4 a5 c4 f5 b3 g6 b2 a6 h6 a7 c3 Ra5 c2 Be3 c1N Na3 b1N Qc2 b4 Ne2 Na2 Rg1 Nac3 Nc4 Na2 Ne5 Nc6 Kh5 Qb6 d8B Nd4 g4 Ne7 d7 Qc6 g5 Nac3 d6 Rc8 a8Q Ned5 Qa6 Kg8 g7 Ndb5 Ba7 e3 Nc1 Ne4 Bf6 Be7 Bc4 Bd8 Rg4 Rh7 Bb3 Nf4+ Kh4 Rh8 Ng6 Nh3 Kh5 Qa8 Kh4 Rc3 Kh5 Nd4 Re5 Nb5 Qc8 Qd5 Qc4 Qd2 Q4d3 Qg2 Qf2 Kh7 Qfc2 Re8 Bc5 Re6 Ba7 Ba5 d8B Kg8 d7 Nbd6 Bc7 Bb6 Bcb8 Bd8 Bc7 Rc5 Kh4 h5 Ba5 Be7 d8B Rc3 Bdb6 Bd8 Bc7 Nhf2 Nh8 Nc5 Qcd1 Qg1 Ne2 Rc2 Rg3 Kh7 Rg2 Nce4 g6+ Kh6 g8Q Rc5 Qe8 Qf1 g7 Kh7 Rg4 Qg2 Qa4 Kg8 Qa2 Ng3 Kg5 h4 Rge4 h3 Rg4 Nge4+ Kh5 h2 Qf1 Qg1 Qfd1 Nh3 Ng6 h1R Qb2 Rh2 Nc1 Rhc2 Qbc3 Qg3 Qg1 Qg2 Qcd2 R2c4 Q2c2 Rc3
1n2n2k/B1p2n1P/N3B3/p1BK2RN/rp3Q2/1N4rR/qP1b4/Q2rNr1N w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 cxd5 b4 g3 Ba6 g4 Bb5 axb5 hxg4 Ke2 Kf7 Kd3 e5 Ke4 g5 d4 Kg7 h4 a5 f4 g3 h5 g2 d6 g4 d7 g3 f6+ Kh7 d5 Bg7 d6 Qc8 d8N Nc6 b6 Nb8 f7 Bf8 b7 Qd7 f5 Nh6 f6 Qh3 d7 Ng4 h6 Bg7 f8B Ra6 f7 Qh2 Bc5 Ra8 f8Q Qh3 Nc3 Rg8 Qf4 Rh8 B1e3 Rf8 Nc6 Kh8 h7 Bh6 Nf3 g1R d8N g2 Kd5 e4 Ncd4 Qg3 Bf2 e3 Rh3 e2 N8e6 e1N Nb3 Nd3 Ne2 Nde5 Ng7 Nf7 Nh5 Qh4 Ne1 Nf6+ Ke6 Rg8 Neg3 Ne8 Nh1 Rg3 Bc4 Rf1 Kd5 g1R Ba7 Qg4 Bfc5 Qg8 Rc1 Bg5 Rc2 Bh6 Qa1 Bg5 Rg2 Bh6 Qe4 Bc1 Qf4 Bd2 Nc1 Ra3 Nb3 Ra4 Rg5 Rg3 Ng7 Nd7 Nh5 Rc8 b8N Rd8 Na6 Nb8+ Ke4 Bc3 Be6 Rd1 Nc1 Bd2 Kd5 Qg6 Nb3 Qb1 Qh4 Qa2 Qc4 Rfg1 Qf4 Rf1
b2n2bR/3bB2r/Nk3rQ1/1p3N1q/pBRP1bB1/KBQ2Q1B/Prp5/8 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 cxd5 f5 exf5 a4 Ba3 Nc6 Bc1 Na5 bxa5 Qd7 Qc2 Qd6 Qd1 Qd8 f4 Kd7 d4 e5 Kd2 b5 Kc2 c5 Kb2 Kc7 g4 h5 d6+ Kb7 a6+ Kc6 a7 c4 d7 e4 g5 e3 g6 h3 g7 h4 f6 h2 f5 h3 f7 e2 f6 e1R Qc2 Bb7 Nd2 Rh5 Nb3 Re2 Bg5 Nh6 g8B Qc8 d8Q Qf5 Nf3 Bb4 f8B Qd5 f7 Rb8 a8B Bd2 Ka3 c3 Rc1 Bf4 Qe8+ Kb6 Nh4 Bc8 Nf5 Bd7 Nc5 Rd2 Qd3 Rb2 Na6 Rc8 Bh4 Rc6 Bb4 Rf6 f8Q Nf7 Qe1 Qe5 Bf3 Nd8 Bb3 Rh7 Bg4 Qe2 Qg8 Qe8 Qf3 Qh5 Qg6 c2 Qec3 Re7 Rb1 Rh7 Rg1 h1B Rg3 h2 Bfh3 Rd6 Be7 Rf6 Re1 Bg2 Re5 h1B Rc5 Bf1 Rc4 Bd3 Rg1 Be4 Re1 Bd5 Re5 Bg8 Rec5 Ne6 Rc8 Bg2 Rf8 Nd8 Re8 Bd5 Rh8 Bg8 Qf2 Bb7 Qff3 Ba8
1n2qBnk/Q1n2Q2/3qp1RB/4Pb2/p2KQ1Q1/3B1Pp1/nQ4r1/r3NRN1 w - - 0 1 legal: proof: a4 c5 d4 f5 dxc5 b5 g3 g5 h3 Bh6 h4 f4 gxf4 bxa4 Nf3 g4 Ng1 Bg5 hxg5 Qc7 Na3 Qb6 Nb1 Qd8 Kd2 Kf7 Ke3 Kg7 b4 h5 c4 a5 g6 d5 f3 a3 f5 h4 f6+ Kh6 f7 Kg7 f8B+ Kf6 c6 g3 b5 a2 c5 a4 g7 h3 c7 h2 c6 Nh6 g8Q Qe8 b6 Bf5 c8Q e6 b7 Ra7 Qg4 Ng8 c7 Rh7 Qe4 d4+ Kd3 Ra5 Qd2 Rb5 Qd7 Rb2 c8Q Rh6 Kc4 d3 Kd4 Rh3 Qa5 d2 Na3 d1N Bch6 Ne3 Qa7 Nd5 Nc2 Nc7 Ne1 Rh4 e3 Rg2 Bd3 Rh5 Rd1 a1N Qg4 Rh4 e4 Rh5 Qc6 Kf7 e5 Nb3+ Kc3 Rh4 Qce4 Nc1 Kd4 Na2 Qd8 Rh5 Qdg5 Rh4 Q5f4 Rh5 Qh3 Kg6 Qhg4+ Kh7 Rc1 Kh8 Rc4 Nd7 b8Q Rh3 Qb2 Nb8 Ne2 Rh4 Rf1 h1Q Ng1 Rh5 Rb4 Qh4 Rb7 Qhe7 Rb4 Rh1 Rc4 Nd5 Rc7 Qd6 Rg7 Rc2 Rg6 Nc7+ Qd5 Rhh2 Qe4 Rhg2 Qef4 Rc1 Qe4 Qa6 Qd7 Ra1 Qf7 Qd6+
Q1Br1k2/b4P1R/1pn1pq1q/1NbBP1B1/7p/1n3R1R/bK1bBB2/4N2Q w - - 0 1 legal: proof: g4 a5 c4 g5 b4 d5 cxd5 axb4 h4 f5 gxf5 g4 Ba3 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Qd7 Ba3 Qd6 Bc1 Qd8 d4 c5 Kd2 h5 Kc2 b6 e4 b3+ Kb2 g3 f4 g2 a4 h4 a5 c4 g6 Na6 g7 Rh7 e5 Nh6 g8B Ng4 d6 Be6 f6 Nc7 d5 Rg7 f5 Nf2 a6 Rh7 a7 Ne4 a8B Nd2 f7+ Kd7 f6 Rh8 Na3 Nb5 Bb7 Na7 Rh3 Nc6 Nf3 g1B Nb5 Bf2 Be2 Bc5 Ra7 c3+ Ka1 c2 Qh1 Ne4 Be3 c1B Bf2 Nd2 Ne1 b2+ Ka2 Nb3 Kb1 Bg7 f8R Bd2 Rf7 Ke8 Bc8 Bgh6 Rh7 Bhe3 d7+ Kf8 Ra3 Bd6 Rf3 Bb8 d6 Bc4 Bd5 e6 f7 Qf6 d8B Bc5 d7 Ba7 Kc2 Bc1 Kc3 b1Q Rh3 Qh6 Bg5 Qbg6 Rf3 Bd2+ Kb2 Qf6 Rh3 Ke7 Rf3 Re8 d8Q+ Kf8 Rh3 Nbd4 Raf3 Ba2 Qd7 Nb3 Qb7 Rd8 Qa6 Bb8 Qa8 Ba7
B1q1B2N/1qq4p/1k1r1PBR/1p3q2/2p2NbN/1Qn1b1Qr/2PR3B/K4B2 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 f5 h3 Nc6 h4 Nd4 gxf5 axb4 Ba3 g4 Bb2 Ne6 Bc1 Ng5 hxg5 Kf7 Be3 Ke7 Bc1 Ke8 Kd2 d5 e4 Kd7 f4 Kc6 a4 b5 a5 d4 g6 b3 g7 d3 Kc3 g3 Kb2 d2 e6 g2 a6 Qg5 a7 Ba6 e5 Re8 a8B+ Kc5 e7 c6 f6 Qh6 e6 Qg5 f5 Kb6 f7 c5 f6 c4 Nc3 Qf5 Nf3 g1Q Nh4 Qg3 Ne2 Qc7 Nf4 Bc8 Qf3 d1Q Bd2 Rd8 e8B Bc5 f8N Rd6 e7 Be3 Bg6 Rd3 e8B Ne7 g8Q Nd5 Qg3 Qdg4 Rd1 Nc3 Ka1 Rd6 Qd5 Rg8 Qdf3 Rg7 Be1 Rgd7 Rd2 Rd3 Bh5 R7d6 N8g6 Bd7 Nh8 Qg8 Beg6 Qgc8 Bf2 Be6 Bg1 Bd7 Kb2 Be6 Bh2 Bd7 Ka3 b2 Be8 b1Q Bhg6 Qe1 Kb2 Qf2 Ka1 Qg2 Qd1 Qgb7 Qb1 Qfd5 Qb3 Bg4 Bg1 Qdf5 Rh3 Rd7 Bh2 R7d5 Nf3 Rd6 Rh6 Bf2 Nh4 Rf3 Qg1 Rh3 Qg3 Be3
Q1Rq3q/npBRnk2/QB2N1b1/pPp3KQ/3q1r2/2P2q2/1N6/NQ2bQ2 w - - 1 2 illegal: No proof kernel
1N3K2/pnb5/3kP1pR/rQNpq1n1/1N2B3/N1BQr1Pq/2rr4/5BRN w - - 0 1 illegal: No extended proof kernel
k2nB1BK/1p2B2b/p1P1BrNQ/q4R1R/3n4/1Pn5/pQ1Q2BN/2qn3r w - - 0 1 illegal: Other
b1r1Q2N/1pb5/N2BKp2/Np1nQ1R1/BR1N4/4PP1r/b3rkN1/4bB1n w - - 0 1 illegal: Other
N2r1R2/pKb1p1QR/3N1rR1/r2n1nP1/3r4/PB4Nn/Q1R1p1b1/3RB1k1 w - - 0 1 legal: proof: e4 g5 b4 c5 bxc5 d5 g4 dxe4 f4 Nc6 fxg5 Qa5 h4 Be6 h5 Qa6 g6 Nf6 g5 Ng8 g7 Nb8 Nh3 Bf5 Ng1 Qg6 hxg6 Bc8 Ke2 Kd7 Ke3 Kc6 Kd4 b5 c4 h5 a3 f5 Qb3 h4 Ne2 b4 Nbc3 e3 Nb5 h3 Nc7 h2 Ng3 f4 Qa2 Nf6 g8Q b3 g7 b2 d3 b1R Bd2 f3 Be1 Rb4 Rd1 f2 Bh3 f1R Be6 e2 Ke5 Rb7 d4 Rb5 d5+ Kb7 d6 Kc6 d7 Bb7 d8R Ra5 Qf7 Nd5 g8R Rh4 Rg6 Rf6 Qg7 Rd4 Bg8 Bc8 Bf7 Bh3 Re8 Bg2 Rc8 Kb7 c6+ Kb6 Re8 Kc5 Rd8 Na6 Be6 Rc8 Na8 Ne3 c7 Nb4 Re8 Rcd8 c8N Nbd5 Nd6 Kc6 c5 Nf5 Nc8 Kb5 c6 Kc5 c7 Ra6 Qh6 Bg7 Nd6 Ra5 Rf8 Bh8 Bd7 Bg7 Ba4 Bh8 Bb3 Bg7 Rf1 h1N Rf4 Nf2 Rh4 Nh3 Qh8 Raa4 Rh7 Ra5 Qg8 Rf7+ Ke6 Be5 Qg7 Bf4 Nb5 Be5 c8R+ Bc7 Nd6 Rd3 Qg8 Kd4 Qg7+ Ke3 Ke5 Rd4 Ke6 Re8 Kd7 Rd8+ Kc6 Rf6 Kb7 Kf3 Bd2 Kf2 Bb4 Bb8 Be1+ Kg1 Rc2 Bc7
2N1B1n1/KQb2ppk/1n2B3/5R1B/1q1p2R1/PNr1Q1B1/1nbPpN1r/3B4 w - - 0 1 illegal: No proof kernel
2q3nr/1Q1P3r/1pbN2pQ/3pP3/1n5B/1n1kbQNB/R4Kp1/NN3N1R w - - 0 1 illegal: No possible last move, all moves rejected
8/PBPQN3/2n2Nb1/pB1qN1B1/pN1b1rQp/4R2R/n3pKn1/r1Nk4 w - - 0 1 illegal: No proof kernel
5N1Q/K1r1RR1P/1nkN2Br/2P2bB1/p5Q1/N1p1N3/1NRpqnp1/1qb5 w - - 0 1 illegal: No proof kernel
R1Q1n1Q1/3b1Pr1/2N1n1kq/1B1K2pp/RR2pb1P/4Qp1q/1R2r1NR/5B2 w - - 0 1 illegal: No proof kernel
1RRnN3/1BN1p2N/1n6/Qb2r3/Q1P1q1k1/1pp2R1p/N1P1qB2/1K1N2rb w - - 0 1 illegal: No extended proof kernel
2r4b/1nQp3N/Q2pR1R1/3r1bNB/4Rp1q/P1B1pP2/2Q1b2k/QKr2Q2 w - - 0 1 illegal: No possible last move, all moves rejected
2qQ1BQ1/1R1B4/4p3/Q2nr1p1/N1p2RPp/n1N1Qn1P/1Bk1bK1Q/b1q5 w - - 0 2 legal: proof: c4 a5 e4 d5 cxd5 b5 a4 f5 axb5 a4 b4 Ra5 bxa5 fxe4 f4 Kd7 g4 Kd6 d4 h5 b6 g5 f5 c5 h3 e3 a6 h4 a7 a3 a8Q e2 f6 e6 f7 a2 b7 Qd7 Qd2 Rh6 Nc3 Rh7 Qe3 Qc6 Kf2 e1N Qa5 Nf3 Na4 Ne7 Ne2 Bg7 f8B Na6 b8Q+ Nc7 Bb2 Ba6 Nec3 Be2 Rb1 a1Q Bg2 c4 Rhf1 Bh8 Bh1 Rf7 Bg2 Kd7 d6 Rf5 d5 Nb5 Bh1 Na3 Qbc7+ Ke8 d7+ Kf7 d8Q Kf6 d6 Re5 d7 Qa6 Qe8 Qc8 d8Q Bg7 Bc1 Bh8 Rb7 Bg7 Bb2 Qc1 Qdd3 Nd5 Qc2 Re4 Qcd8+ Ke5 Qf7 Bh8 Qg8 Bg7 Qf4+ Kd4 Qh2 Ne5 Qb3 Kd3 Qbb6 Nf3 Qe3+ Kc2 Bg2 Ne7 Bh1 Re5 Bg2 Nd4 Bc6 Nd5 Bd7 Nf3 Rd1 Nb6 Rd4 Nd5 Rf4 Qd2 Bc1 Re4 Nb5 Ba1 Nbc3 Re5 Bb2 Qc1
1Q3Q2/Q1pp1K2/1qkPpNPB/b4nr1/1RrQn3/B6p/B4N1Q/1q1R2n1 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 a4 Ne4 h4 gxh4 a5 Nc3 b6 Bc8 b5 Nd5 a6 Bb7 axb7 Nf6 Be2 Ng8 Bd3 Nh6 Bf1 Ng8 Ke2 a5 Ke3 h5 Kf4 a4 Kg5 a3 Kg6 e6 d4 a2 g4 h3 f4 h4 d5 h2 d6 Na6 b8Q Nb4 f6 Ra5 g5 Ra3 b7 Bh6 b6 Re3 f5 Ra3 f7+ Kf8 Qd4 Nc2 Bc4 Nf6 Nd2 Ne3 Rb1 a1Q Rb4 Rc3 Ba2 Rc4 Nh3 Ne4 Rd1 h1N Nf2 h3 Ba3 Qb1 Qa7 Nhg3 b8Q Ne2 b7 Ng1 Qba8 Bg7 b8Q Rh5 Qad5 Bf6 Q5e5 Bh8 Qh2 Qc8 Qd3 Bc3 Qdd4 Qd8 Rb7 Ba5 Rb4 Nc3 Nde4 Qe8 Qbb6 Qb8 Kf6 Qb7 g6 Rg5 Qb5 Qa6 Qbb8+ Qc8 Ke5 Kg7 Nf6 Ne4 f8B+ Kh8 Ne8 Qa6 Bh6 Kg8 Qd8 Qb6 Qdb8 Rg4 f6 Nf5 f7+ Kh8 Bd2 Rg5 Nf6+ Kg7 Nh7 Kh6 f8Q+ Kh5 Nf6+ Kh4 Qh1 Kg3 Qh2+ Kf3 Nh5 Ng3 Kf6 Ne4+ Kf7 Rg2 Bh6 Rg5 Qdh8 Ke3 Nf6 Kf3 Rc1 Ke3 Qhg7 Kd4 Rd1+ Kc5 Nh7 Rc2 Qd4+ Kc6 Nf6 Rc4
3k1NRB/1r1nn1pq/p6p/KR3rp1/1r1B1Q1P/1B5B/2N3RP/Bq2Qb2 w - - 0 1 illegal: No proof kernel
b3R1KR/3Brr1n/k1bp1p2/1R1pBr2/2RQ1P2/3P1R2/B3Q1p1/qqN4N w - - 0 2 illegal: No proof kernel
1n3NB1/2p1R2Q/p1QN2p1/K1Pr1B1R/1Pn3Nb/1krqq1B1/4p2B/1B1q4 w - - 0 1 illegal: No proof kernel
3K4/1R1rnk1r/QQ1p2R1/B1br4/pN1B3q/1pBpP1N1/P1N1B1bB/2q5 w - - 0 1 illegal: No proof kernel
k1Kq2B1/Nr2P1r1/r2B1NR1/2p1Qp1N/NB2Rb2/1Q1p3q/2p1NP2/2n2n2 w - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 a4 h4 c4 bxc4 b5 h3 b6 Rh6 gxh3 Bb7 h4 Bc6 h5 Bb5 axb5 Rh8 Kd2 d5 Kc3 Kd7 Kd4 Kc8 h4 Kb7 e4 f5 h6 a5 h5 g5 h7 c6 h6 c3 e6 c2 Ke5 g4 e7 g3 Ke6 d4 e8N a4 e5 g2 Rh4 Ne7 Ba3 Ra6 Re4 Ng8 Ne2 g1Q Nbc3 Ra7 Bb4 Qh1 Nf6 Kc8 b7+ Kc7 Qb1 c5 b6+ Kc6 Qb3 a3 Na4 Na6 b8B Kb7 Bd6 Qa8 Kd7 a2 e6 Qh3 e7 d3 Bg2 Bg7 Rg1 a1R Bf3 Rb1 Bh5 Ra1 Bf7 Qf8 Rg6 Ka8+ Bc7 Rb7 Bc4 Qf7 Kc8 Qd5 Bd6 Qd4 Nh5 Nf6+ Bg8 Ng4 Nf6 Ra7 Qb1 Rd7 Qb3 Ne3 b7+ Ka7 b8N Nf1 Re6 Rb7 Nc6+ Ka8 Re4 Qd5 Na7 Bf8 Be6 Rg8 h8Q Rg7 h7 Qd4 Bg8 Qd5 Bd2 Nb4 Be1 Na2 Bb4 Rf7 Qg7 Nc1 h8N Qd4 Nd7 Ra3 Qe5 Bh6 Nf6 Rh7 Nh5 Bf4 Nf7 Ra2 Ng5 Rg7 Nh7 Qd5 N7f6 Ra1 Nb2 Ra6 Na4 Qd4 Bc7 Qd6 Bb8 Qb6 Bd6 Qd8+
2K1NQ2/4pp2/2q3q1/6N1/1BBpPrr1/nNb3R1/2knpQP1/2BqB1RB w - - 0 1 illegal: Other
nN1r1Nr1/3p1p1P/1Rb3Bn/Rn1Qq1k1/2qP3R/KRp3N1/2RpQ3/2B5 w - - 0 1 illegal: No proof kernel
N2RBk2/2N2pN1/3pQpbN/p2N1Q1r/3B1n1b/R2qP3/P2R3n/2Kq2n1 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 Ke7 bxc5 Qc7 f4 Ke8 f5 Qd8 f6 gxf6 h4 a5 g4 Qc7 g5 Qb6 g6 Qd8 Bb2 b5 Kd2 Ra6 Bc1 Rd6+ Ke1 Rd4 Bh6 Rg4 Bc1 Rg5 hxg5 Qb6 Na3 Qc7 Nb1 Qd8 Kd2 h5 c4 b4 e6 b3 g7 d6 g6 h4 e7 b2 c6 h3 c7 h2 c5 Bh3 c8N Bg2 c6 Nd7 c7 Ne5 Qb3 Qd7 Nb6 Qc6 Nf3 Qc5 Na8 Qd5+ Nd4 Qe6 Nb5 Rh4 N1c3 b1Q Nd5 Qbf5 Bb2 Qh3 Kc1 Qd3 Bd4 Nh6 g8N Bf3 g7 Nhg4 Nh6 Ng6 g8R Rh5 e3 Qef5 Rb1 Nf4 Rg1 h1N Rg2 Qh7 Rd2 Nhf2 Qc4 Bd1 Rb3 Bc2 Ra3 N2h3 Qc5 Ng1 Bh3 Kd7 e8N Qb3 Ng7 Bg6 Bf1 Nh2 Be2 Qd3 Bd1 Qe2 Ba4 Qg4 Nb4 Ke7 c8Q Qe2 Nbc7 Qd3 Q5f5 Qb3 Nge6 Bg7 Rd8 Qd1+ Kb2 Bf8 Be8 Bg7 Nc5 Kf8 Qce6 Qe2 Kc1 Qg4 Ng8 Bh6 Nbd5 Bg5 Nh6 Bh4 Ne4 Rg5 Ng3 Qe2 Nh5 Qd3 Ng7 Rh5 Ng8 Qh6 Rd1 Qg5 Nh6 Qg4 Rd2 Qd1+
1Nr3nR/B3KP2/1R2n3/2pbp1Q1/1N2r1Rp/Nk1NP1QN/p2b2b1/1B5n w - - 0 1 illegal: No proof kernel
r1BNQ1Qn/1B4p1/nk1N2P1/8/3R1p2/p4Bp1/PrBb1Nq1/KRn1B2n w - - 0 2 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Bf8 f3 hxg4 Qd4 g3 Qd1 b6 Kd2 Bb7 Ke1 Be4 Bf4 Bf5 Bc1 Bg4 fxg4 Rh4 Kd2 Rh6 Ke1 Rh8 Kd2 f5 Kc3 d5 Kb2 Kd7 h4 Kc7 e4 a5 c4 f4 g5 b5 h5 d4 c6 b4 h6 d3 g6 a4 h7 d2 c5 b3 e6 Ra7 e7 Qd4+ Nc3 Nh6 e8Q Qb4 e5 Nd7 e6 Qd4 e7 Ra8 Nh3 Ng8 Be2 Ra7 Nf2 Qd3 Bf3 Nh6 Rb1 a3+ Ka1 Qe3 Nce4 Nb8 Nd6 Qe2 Rg1 Rg8 h8N Ra8 Nhf7 Na6 Nd8 Nf7 Qe1 d1N Bd2 Qf1 Qe6 Nh8 Be1 Qg2 Rh1 Rb8 Rh5 Rb5 Rd5 Rb4 Rd4 Rb6 Nfe4 Nf2 Qd5 Nh1 Nf2 Kb8 c7+ Ka7 c8B Rb5 c6 Kb6 c7 Rb4 Rbd1 b2+ Kb1 Rb5 Bb7 Rb3 c8B Rb5 Kc2 b1N Qc4 Nd2 Rc1 Nb3 Kb1 Nbc5+ Ka1 Nd3 Rb1 Nc1 Qd7 Nb4 e8B Na6 Bf7 Rb3 Qe8 Rb2 Bf7d5 Be7 Bde4 Bf6 Bc2 Be5 Rd1 Bc3 Rd4 Rf8 Qg8 Bd2 Bbd5 Rf7 Bde4 Ra7 Beb7 Ra8
1R2N2R/1K2Q3/PQpppB1N/1B1Pb1pq/2br3B/1Q3n2/2bb1B2/2k2nB1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 b5 g4 hxg4 bxa5 b4 Qa4 Ra6 Qb3 Rb6 Qd1 Rb5 cxb5 Ba6 Bc4 Bb7 Bf1 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Kf4 a4 g5 d4+ Ke4 h4 c6 f4 b3 h5 b2 f6 g3 a6 g2 f7 Rh6 f5 Qa5 d5 Bb7 f6 Rh7 a7 Qd8 a8Q Bc8 h6 Bg7 f8B e6 f7 Qf6 Kb6 Bb7 a5 Rh8 h7 Qe7 a6 Nf6 Nh3 g1B+ Be3 Bh6 Bf2 Qa3 Qa7 Qf3 Qb3 Ng4 B8c5 Bc8 f8Q Nh2 Na3 b1B Qe7 Bd3 Rb1 Bg7 Nc4 Qh5 Nd6+ Kf3 Rb2 Be5 Ne8 d6 Bh4 Rf8 h8B Bd7 Nf2 Rf4 Kb7 Rd4 Ng4 Be3 b6 Bd2 Nh6 Ke3 Be2 Nf1 Bf6 Be1 Rb1 Kd2 Rb2+ Bc2 Bb5 Kc1 Rh3 Bd2 Rh2 Ra4 Bcf2 Bd3 Kc7 Be2 b7 Rd4 Qb6 Bc4 Rh3 Bc8 Rh1 Nd7 b8B Nc5 Ng4 Bd7 Ba7 Nd3 Kb7 Ne1 Nh6 Nf3 Qa5 Re4 Bac5 Rg4 Qb6 Rd4 Bg1 Re4 Bcf2 Rd4 Nc7 Be8 Rh2 Bg6 Ne8 Bf5 Qa2 Ne1 Kc7 Qg6 Qba5 Bg4 Ng8 Bdf4 Ba4 Qh6 Rb8 Bd1 Qb6 Bb5 Qb3 Bc4 Bhg3 Qg7 Kb7 Bc2 Rh8 Qg6 Nh6 Qh5 Bh4 Bd2 Bb5 Nf3
1Qnrb1Q1/1b1B4/1N2b1pB/2p5/R1PQ1pNP/8/N1pR2r1/q1bQQK1k w - - 0 1 illegal: No proof kernel
5b2/1K1Rr3/NPRpp1Nk/1nq1r3/pQ1PB3/RBR2r2/2Q2p1B/2rb2R1 w - - 0 1 illegal: No proof kernel
n1B3R1/Bb1KBp1q/1B5p/4k3/rR1Rb1p1/N6B/1QQ1bPpP/3N1bn1 w - - 1 2 illegal: Other
KB3kBq/QnQbp3/1N2Q3/BpR5/2N4Q/2Pn1ppr/R1n1P1n1/3Q1r2 w - - 0 1 legal: proof: g4 a5 d4 h5 b4 c5 dxc5 axb4 gxh5 g5 f4 g4 Qd6 Bh6 Qd1 Bg5 fxg5 Ra5 Bh3 Ra3 Bf1 Ra8 Kd2 b5 Kd3 d5 Kd4 f5 h4 g3 a4 f4 c6 b3 Kc5 d4 a5 f3 c7 b2 Kb6 d3 a6 d2 h6 Bf5 Kb7 Kf7 c8Q Bd7 h7 Nf6 h5 Ke8 a7 Rg8 h8Q Na6 g6 Be6 g7 Bb3 h6 Kf7 h7 Nb4 Nh3 Ne4 Ra2 Qd6 Nf4 Qd3 Bh3 Qd7+ Qc7 Ng5 Na3 b1N Nc4 Rgd8 Nd5 Na3 Ndb6 Ne6 c3 Rac8 a8Q Nac2 Ba3 Qe8 Qa7 Nd3 Bb4 Rd4 Ba5 Nd8+ Ka6 Qf8 g8Q+ Ke8 Qf6 Nb7 Qge6 Qh8 Qh4 Kf8 Bf5 Rd7 Bg6 Rd5 Bf7 Rcd8 Bg8 Rh5 Nb2 Bd5 N2c4 Bc6 Rh3 Bd7 Rh2 Qf6 h8B Qh6 Be5 Qh8 Qc8 Rh7 Bb8 Rh6 Qc7 Rh7 Qe1 d1N Qd2 Nde3 Qd1 Ng2 Rh3 Nd6 Rh1 Ne8 Kb7 Nd6+ Ka8 Nb7 Qd4 Rh6 Rh5 Rh7 Rc5 Rh1 Qcc6 Rf1 Qh4 Rc8 Qcd6 Rc6 Qc7 Rd6 Qee4 Rh6 Qe6 Rh5 Qd4 Rh2 Qh4 Rh3
2b2k1B/1RR2p2/1nBn1r2/Q1Nr1PpP/3p2K1/2R1N1Rp/N2R1Qrb/4r3 w - - 0 1 illegal: No proof kernel
N1Br1R2/1n1n4/KBp2p1b/P2Q4/bkP1RrBB/p2bR2p/3N4/Q1B2b2 w - - 0 1 illegal: No proof kernel
b1n3rQ/1k1K1N1p/pbr2Qb1/R3nNpb/5p2/P1BRN3/1N1P2N1/1B2R3 w - - 0 1 illegal: No proof kernel
N1qn3n/4bp2/1R3Ppk/nKNBp3/7B/2p3Pb/R1p1QBBQ/n2RB3 w - - 0 1 legal: proof: b4 a5 bxa5 d5 c4 dxc4 e4 Ra6 e5 Rd6 exd6 e5 h4 Ne7 h5 Ng6 h6 Rg8 a4 Nh8 d4 g6 g3 Rg7 hxg7 b5 Kd2 c5 Kc3 h5 g8R h4 f4 h3 a6 h2 d7+ Ke7 a7 Kf6 a8B Bd6 a5 Nc6 d5 Nd4 f5 Ba6 Qe2 Nf3 Bg2 Qe7 d8B Bc7 d6 Bb7 d7 Ng5 a6 Bd6 a7 Ne6 Ra2 Bc8 Bb6 Qd8 Na3 Be7 Bad5 Qf8 a8Q Nd8 Bb2 Kg5 Nh3+ Kh6 Rd1 h1N Ng5 Nf2 Ne4 Nd3 Qa4 Qe8 Qac2 Nb4 Ba1 Nbc6 Ba7 Ne6 d8B Na5 Bb2 Qc6 Rf8 Bd7 Bab6 Qc8 Bc1+ Ng5 Bd2 Be6 Be1 b4+ Kb2 b3 Kc3 b2 Nb5 Bd7 Nc7 Ne6 Na8 b1N+ Kb2 Na3 Kc3 Bd6 Bh4 Nd8 f6 Bh3 Re8 Bf8 Re6 Bd6 Ba7 Be7 Qb2 Nc2 Rb6 Nab7 Qf2 Na1 Qbe2 Na5 Qg1 Qb7 Qh2 Qc6 Kb2 c3+ Ka3 Qc8 Ka4 c2 Kb5 c4 Rd6 c3 Baf2 Qg4 Rb6 Qf5 Nc5 Qc8
2bN1rR1/2p1p2N/RQQ3p1/6N1/2pp1p1N/r2bPP1B/q1B1Kn2/B1N3k1 w - - 0 2 illegal: No proof kernel
1nr2QB1/3QQ1N1/Bp3p1p/1PpK3b/3b3N/3RBp1b/1pPq1R1B/B2k4 w - - 0 1 illegal: Other
kq1QK1Nr/r1q1N1bp/NB2nRbQ/1B2pq2/n2nP3/5B1P/1R2N3/1r4N1 w - - 0 1 illegal: No possible last move, all moves rejected
2bn2Q1/N2k1rp1/R2n2NQ/2r2p2/1RQ3qb/B1bKbPQ1/2B3P1/Qb1B2n1 w - - 0 1 illegal: No proof kernel
1b1Nk2K/N6b/1b2n2B/RrNN1R1p/Q4Qp1/qB1R2PN/2bn1nrP/r7 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 Kf2 f5 Kf3 c5 b4 g5 e4 h5 d4 a5 b6 a4 g3 a3 b7 a2 d6 c4 d7+ Ke7 e5 c3 d5 c2 d6+ Kf7 b5 Qf6 d8N+ Ke8 b6 Nc6 b8Q Nh6 b7 Ng4 e6 Qb2 e7 Qa3+ Nc3 Nf2 Ne6 Nd8 Nc5 Ne6 Bc4 Rg8 Bd2 c1B Bb3 Ra4 Nh3 g4+ Ke2 f3+ Ke3 Rf4 Rf1 Rg5 Nd5 Bg7 Qc7 Be5 b8N Rc4 Nc6 Rc2 Na7 Bcb2 Rb1 a1R Bc1 Bd7 Bd2 Ba4 d7+ Kf7 d8N+ Ke8 Bc1 Bbc3 Rb2 Ba5 Ra2 Bb6 Qd4 Bd6 Rd1 Rb2 Rd3 Rd2 Qf4 Be5 Qb7 Bb8 Qa8 Rb2 Bc4 Bc2 Bb3 Ne4 Bd2 f2 Bc1 f1B Bd2 Qb4 Ra5 Qa3 Bc1 Nf2 Bd2 Nc7 Kd4 Bg2 Ke5 Ne6+ Kf6 Be4 Qe5 f4 Be3 f3 Qf4 Nd4 Bc1 Re5 Kg7 Bh7 Kh8 Ne6 Qb7 Re4 Qa6 Rb4 Qac4 Rb5 Qa4 Bf5 Qc7 Bh7 Bh6 Nh1 Qe5 f2 Qef4 f1N Ne4 Kd7 e8R Nf2 Rf8 Nd2 Rf5 Ke8 Nc5 Rbb1 Nd7 Rg1 Nc5 Rg2
B1qN2kr/n2p1q2/1B1Pn3/1Rp1QRN1/2P1bR2/2B4R/rqQ2nK1/b1R1n3 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 f4 Kf7 Kf2 c5 c4 e5 b4 h5 g4 a5 d4 h3 g5 h2 d5 h4 g6+ Kg7 d6 e4 f6+ Kh6 f5+ e3+ Kg2 a4 g7 Kh7 b6 a3 b5 a2 b7 e2 f7 e1Q f6 Nh6 b6 Qb4 Nd2 Ra6 Nh3 Ng8 Nf3 Qb2+ Bd2 Nc6 b8R Bb7 Rc1 a1N Ne5 Nh6 Qc2+ Nf5 Bc3 Na7+ Nc6 Ra2 g8R Be7 f8R Qc8 f7 Nb3 Rg4 Nd4 Rf4 Nf3 Nd8 Be4 b7 N5d4 Ng5+ Kg7 Bd3 Bf6 Bf1 Ne6 Bd3 Bf5 Be4 Bd4 Rhe1 h1N Re3 Nf2 Bd5 Nd2 Rh3 Nf3 Rg8+ Kh6 f8Q+ Bg7 Qe8 Be4 Rgf8 Be5 Nh7 Kg7 R8f5 Bd4 Qe7+ Kg8 Ng5 Bg7 Ra8 Be5 b8B Bf6 Bc7 Bg7 Bb6 Bf6 Rh2 h3+ Kg3 Bg7 Rb8 Bf6 Rhh1 h2 Ba8 Bg7 Kg2 Bf6 Rhd1 Bd4 Rd3 h1Q+ Kg3 Qh4+ Kg2 Qh7 Qf6 Qf7 Qe5 Ra3 Bba5 Ra4 Rb5 Ra2 Bb6 Qb1 Bb4 Ba1 Bc3 Qb3 Rdd1 Qb4 Rh1 Qb2 Rh3 Ne1+
2n4n/Rp1kNR2/NPb1Rqpb/2Q4q/r3r1P1/6K1/1Qq1RBR1/1Q1Br1q1 w - - 0 1 illegal: No proof kernel
4b3/6r1/2KB1npq/rN4QB/QqR1n1Q1/BpB1bRbn/1P2bBP1/1k2N3 w - - 0 1 illegal: No proof kernel
1bn4B/2r1QQ2/p1NpQKbR/b2P1R1B/4Q1q1/3r1n2/P2R2q1/1rkr2NQ w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 bxc5 Qb6 Bb2 Qc7 Bc1 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 g4 b5 c4 e6 c6 h3 c5 h2 c7 b4 c6 b3 f6 h4 f7 a6 Na3 h3 Bb2 Ra7 d4 Ne7 d5 Rh7 Bd4 b2 Be2 b1R Nc2 Bh6 f3 Qg8 f8R Rab7 Rf4 R7b3 Nb4 Rd3 Qf1 Rbd1 Rc1 Rg7 Rc2 Rf7 Rd2 d6+ Ke4 Nd7 Bh8 Ne5 Rf6 Bd7 c8Q Be8 c7 Bg7 Qd7 Nc8 Qa4 Rd7 Rh6 Bf6 Nc6 Bd8 Rf6 Bg6+ Rf5+ Kh6 f4 Nf3 Nd4 e5 g5+ Kh5 Qc4 Kg4 Nc6 Rb1 Qfc1 Kg3 Q4c2 Kf2 Bd1+ Ke1 Qa4 Na7 c8Q Rc7 Qe6 Nc8 Qe7 Rcb7 Qf7 Bc7 Qd4 Bb8 Qb4 Bh7 g6 Rc7 g7 Bg6 Qd4 Qh7 g8Q Qh4 Qge8 Qg4 Qee6 Rbb3 Qca1 Rb6 Rg2 Rb1 Be2 Kd2 Bd1+ Kc1 Rd2 Qh5 Qa4 Nh4 Bg4 Nf3 Qfe7 Qg5 Bh5 Qg4 Qb4 Bf7 Rf6 Bg8 Bg6 Bh7 Qbd4 Qg3 Kf5 e4 Qde5 e3 Qe4 e2 Rf7 Ne5 Nf3+ e1B Rd1+ Kc2 Rf6 Qg1 Rf8 Ba5 Rd2+ Kc1 Rf6 Qd1 Rf1 h1Q Kg5 h2 Bh5 Bf5 Rh6 Bg6 Rff2 Qhf1 f5 h1R f6 Qh3 f7 Qg2+ Kf6 Re1 Nfd4 Qdg4 Rf5 Nf3 f8Q Rf1 Qff7 Rg1 Rc2+ Kd1 Ne2 Rc1 Rd2+ Ke1 Qad4 Rf1 Qg1 Rb1 Qh1 Rg1 Rc2 Kd1 Rb2 Re1 Ng1 Kc1 Rd2 Rd1
1Q6/6n1/nK1NQ3/3pBpb1/1Nr2Pq1/r1QbR1rk/1Q1P1R2/rB1rQr1N w - - 0 1 illegal: No proof kernel
3K2n1/p1Q2R2/Prp1kBB1/2Rqr2R/2P2b1r/1N2N3/R1br2Q1/nB2b1bR w - - 0 1 illegal: No possible last move, all moves rejected
3B1kB1/3p2p1/1B1rn1q1/Qb2RrP1/3R1pB1/q3bP2/1B1N1R1q/KQ2rn1N w - - 0 1 illegal: No proof kernel
kbR1NKQr/3bp3/1r6/1b3Np1/1q1p2r1/N2PqNPN/4n1R1/1BB2nQR w - - 0 1 illegal: No proof kernel
Q1Q1KB1N/1B4b1/pQNN1pq1/P1n1Q3/1r3p1k/1nnRrb2/2R2P2/2bq2Q1 w - - 0 1 illegal: No proof kernel
1Q3KQN/q3RN2/1p1npqr1/1B3Rb1/3kP3/1P2nn1B/pr1q1Bb1/2RRR3 w - - 0 1 illegal: No proof kernel
2qR4/p1qrb2N/R1pr1p2/K1rB2Bb/P1P2Q2/2Qn4/1N1BB3/k2NqnB1 w - - 0 1 illegal: No possible last move
1n1b3r/1K1p1bkb/rrN2n2/1p2B1bQ/2QPqR2/Q2N2p1/R3N1P1/1N2N2B w - - 0 1 illegal: Other
2r1kbQ1/1n1NNp2/Q1R2P2/2B1p1pQ/2n1K1Pr/2QRrB2/1pbBn3/2q2Q2 w - - 0 1 illegal: No possible last move
N1R1Q2N/1BbnBpQ1/bp1n1r1R/p3k3/R1p3r1/7K/1PN2P2/nR1b1Rq1 w - - 0 1 illegal: No proof kernel
2QnnB2/1Q2Kqb1/br2p2p/2QQP2B/pN1p3k/1NQ3q1/R2P1rR1/2N1r3 w - - 0 1 illegal: No proof kernel
B1K1RQ1B/1N1p3p/3p2b1/rB1nb3/q1QPNpq1/r2N4/1N3PN1/qR1n1k2 w - - 0 1 illegal: No proof kernel
Nk1Nq3/1Nqnpbp1/pb1n4/N2r4/2NB1K1n/P1QQ3p/Rr2R2P/1B4Q1 w - - 0 1 illegal: No proof kernel forced: wxDB
1k1n2qB/3RB2B/1P2bB2/2Qr4/2KbB3/3P2N1/Br2qB1R/1q3nNb w - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 a5 axb5 c5 bxa5 g5 h4 gxh4 c4 Bb7 cxd5 c4 Qc2 c3 Qxc3 Ba6 Qc7 Bc8 Ke2 e5 Kd3 h5 g4 e4+ Kc4 e3 f4 e2 a6 e1Q a7 h3 b6 h4 g5 h2 g6 h3 f6 Bf5 d6 Qde7 g7 Nh6 g8B Ng4 Nc3 Rh4 Qc5 Kd7 f7 Qf2 Ne4 Nh6 Bd3 Qe2 Bb2 Nc6 Bh8 Kc8 d7+ Kb7 d8B Rh5 Ng3 Qd6 Bdf6 Nd8 Rd1 Bg7 f8B Qb8 B8e7 Ng4 Bh7 Bc8 Bg8 Rd5 f5 Be6 Bh7 Qe3 Bb1 Qe1 Ba2 Qe2+ d3 Qc8 Rf1 Qb8 Rf4 Qc8 Rd4 Ne3+ Kb3 Nf1 Kb4 Qc6 Kc4 Rc8 a8B+ Kb8 Bh4 Be5 f6 Qe8 f7 Qg8 f8B Rc7 Bef6 Ra7 Rg4 Bd4 Rg7 Ra3 Rd7 Rb3 Nh5 Rb2 Bf2 Qeg4 Ng3 Qe2 Nf3 Rd2 B8e7 Rb2 Rg1 h1Q Rg2 h2 Bb7 Qg1 Bc6 h1B Rh2 Qg2 Ng1 Qge4 Ba4 Qe5 Bd1 Qe1 Bf3 Q5e2 Bfe4 Qb1
1B3Bb1/2Kbb1nN/1r2Q2n/nq2B1BP/1P4B1/2N1B3/1R1np2R/4k1qB w - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 h5 g4 a5 h4 f5 e4 fxe4 hxg5 h4 Bc4 Rh5 gxh5 Ra6 Bd3 Rh6 Bf1 Rh8 Ke2 Kf7 Ke3 e5 b4 c5 d4 c4 f4 c3 d6 Ke6 b6 Kf5 d5 a4 g6 a3 b7 c2 g7 a2 d7 h3 d6 h2 Qe1 Kg4 f5 Rh6 f6 Na6 b8B Qa5 d8B Be7 f7 Nc7 f8B Ne8 d7 Rb6 Bd3 Qb5 Nc3 Nh6 g8B Ng7 Rb1 a1N Bdc7 Nb3 d8B Na5 Nf3 Bd7 Rb2 Kh3 Be2 Kg2 Bd2 c1N Bd5 Ncb3 Bc1 Nd2 Ng5 Be6 Bg4 Bd7 Qe2+ Kg3 Qc4 Kg2 Nh7 Kg3 Rf1 h1B Rf2 Bg2 Qb3 Bf1 Rh2 Bc4 Bb7 Bf7 Qe6 Bg8 Rh4 Kg2 Rh2+ Kf1 Bd5 Bd6 Bg5 Be7 Bc4+ Ke1 Bf1 Nf3 Bg2 Nd2 Bh1 Nf3 Nb1 Kd1 Rbf2 Ne8 Rc2 Ng7 Kf2 e3+ Kg3 e4 Kf4 e2 Bd2 e1Q Rb2 e3 Bc1 e2 Be3 Qf1 Nc3+ Ke1 Ke4 Qg1 Be5 Qa4 Kd5 Bd8 Kc5 Nd2 Kd5 Bc6+ Kd6 Be7+ Kc7 Qb5 Bef6 Be8 Be5 Bd7
1N1r1NBn/kp2P1P1/1n1R2RK/3N2Qb/1NNb2NB/2r3r1/8/1n1rNr2 w - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 gxf5 d5 cxd5 e5 fxe5 g4 h4 Qg5 b4 axb4 hxg5 Bd6 Na3 Bc5 Nb1 Bf8 Kf2 Kd7 Ke3 h5 Kf4 c5 a4 Kc7 e4 Kb6 d4 g3 a5+ Ka7 a6 h4 g6 b3 Kg5 b2 e6 c4 d6 c3 g7 c2 d5 h3 f6 h2 e5 g2 d7 Rh3 d8N Bd7 f7 Ne7 d6 Rh8 Qg4 Nd5 e7 Ba4 e8N Nb4 d7 Nd3 e6 Ne5 Nc6+ Kb6 d8N Nd3 a7 Bd6 f8N Bc7 e7 Rh6 Na3 b1N Nf6 Nc5 Nb4 Nc6 Nf3 g1R Ne1 Nd7 Bc4 Rh3 Bg8 Rf1 Rg1 Rg3 Kh6 Nce5 Ndc6 Ng6 Nb8 Be5 Bg5 h1R+ Bh4 c1R Qg5 Bd1 Ng4 Rcc3 Rg2 Nh8 Nc4+ Kb5 Raa2 Nb6 Rad2 Rhg1 Rd6 Bf3 N8c6 Rd8 a8N Kc5 Nc7 Rh1 Nf2 Bh5 Ncd5 Bd4 Ng4 Rhg1 Re2 Rh1 Ree6 Kb5 Rg6 Rhg1 Nbc2 Ka6 Nb8+ Ka7 Ncb4 Rh1 Ned3 Rd1 Ne1 Rf1
1b1Rq3/1B4Qq/B3bqB1/3BR2K/5p2/PqNB1P2/1r1kB1qn/N4B1q w - - 0 1 illegal: No proof kernel
1B4Q1/p1p3N1/1kr2P2/3bBB2/R3P1Nb/1B1r2Bq/2bR2BK/1rb1B2b w - - 0 1 illegal: No possible last move
Nq3q2/3NrNpB/RpN2NPq/P3R3/1p3N2/1Nn1rBk1/1K3n2/4Q1r1 w - - 0 1 illegal: No proof kernel
2b1rb2/2N1q2n/2NR2P1/Bp1B1r2/1NRP4/N5k1/qNn1r1Nn/Q1nN1K2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 f6 Kg6 f5+ Kh7 a5 b5 f7 c4 a6 c3 a7 e4 g6+ Kg7 g5 c2 d6 h4 d7 b3 Bg2 b2 Ra4 h3 Kf1 e3 Ne2 h2 Nec3 Qc7 d8N Rh3 f6+ Kh8 g7+ Kh7 Bd5 Kg6 Rc4 Kf5 Na3 Kf4 Bd2 b1Q Nc6 c1R Nb4 Na6 g6 Ne7 g8N Qa2 Rc6 Rb8 a8N Rc2 Rd6 Rh5 Nb6 Kg3 Nbc4 Rb2 Qa1 e2+ Ke1 Qd7 Nd1 Rf5 Rf1 Rc2 Ncb2 h1N Bc3 Nf2 Rh1 Nc6 Ne7 Ne5 Nec6 Ne4 Rh2 Ng5 Rh8 Bh6 f8N Qe7 f7 Nh7 Ne6 Nc5 f8N Nb3 Nc7 Nc1 Nfe6 Bf8 Rg8 Bd7 Rg7 Re8 Nf4 Bc8 Rf7 Kg4 Ng2 Nf3+ Kf2 e1N+ Kf1 Re2 Ne6 Qb3 Na6 Bg7 Ne5+ Kg3 Ba5 Qf8 Nb4 Qa2 Rc7 Qe7 Rc4 Nc2 Nec6 Bf8 Nc7 Nh2+
1b2NQ1r/1qn2N2/1KpNb1Br/2B2N2/rNNP1b1n/PR6/R6q/2N2bk1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 b5 f4 g5 h4 b3 a3 e6 f6 g4 f5 b2 f7 g3 h6 g2 f6 b4 h5 b3 h7 Qe7 h6 Ra5 Rh3 Ra6 Qf3 Bd7 Bd3 Qd8 Bg6 Qe7 Ne2 g1Q+ Qf2 Qh1 Ra2 e5+ Kc4 Bg4 Kb5 e4 d4 e3 Nd2 Bg7 f8N b1B f7 b2 Ne6 Be5 f8N Bf4 Nd7 Qh2 Ng7 Be6 Nf6 Ra4 Rg3 Na6 Nfe8+ Kd7 d6 Bd3+ Nc4 b1R+ Bb2 Rh1 Nc1 e2 Nf5 e1B Bc3 Bf1 Bb4 Qg7 Rd3 Ne7 Rb3 Qf7 Qf3 Beg3 Bc5 Qg7 Ne3 Nf5 Qa8 Rg8 h8N Nh4 Nf7 Rh8 Nf5 Qh7 Qb8 Qg7 h7 c6+ Kb6 Nc7 Qa8 Bd5 Nfe5+ Ke6 d7 Qe7 Ned3 Qf7 Ncd6 Bc4 d8N+ Kd5 N8b7 Qg7 Nf7 Ke4 Nfe5 Be6 Nc4 Kf3 Nbd6 Qf7 Qd8 Qd7 Qf6 Qg7 Qf8 Qf7 Nf2+ Kg2 Nfd3+ Kg1 Nb4 Rg8 h8N Qg7 Nhf7 Rh8 Nd5 Qh7 Ng5 Qd7 Ngf7 Qc8 Bb4 Qb7+ Kc5 Qb2 Nb5 Be3 Ndb6 Na8 Na5 Nf3 Nd5 Bb8 Nbd6 R1h6 Nac4 Qc2 Neg7 Nc7 Nge8 Qc8 Kb6 Nh4 Bc5 Bf4 Nb4 Qg2 Rh3 Qh2 Rb3 Qb7+
n2nRN2/qR2q2P/1p1nrnR1/1R1BB3/1P2rRQ1/3k4/R4R2/N1b2bKr w - - 0 1 legal: proof: e4 a5 b4 h5 c4 f5 exf5 d5 cxd5 h4 Qb3 h3 gxh3 a4 h4 axb3 h5 Ra4 Bd3 Ra5 Bf1 Ra8 f4 Kf7 Kf2 Kf6 a4 g5 d4 e5 h4 c5 h6 c4 h5 c3 a5 g4 d6 c2 d7 b6 d5 b2 h7 e4 h6 Nc6 d6 Be7 a6 Rb8 a7 Rb7 a8R Ra7 Ne2 g3+ Kg1 g2 Ra2 e3 Na3 b1Q Nd4 e2 Rh5 e1R Rb8 Re2 Ne6 Qe8 d8R Rd7 Nf8 Qa1 Rb7 Re4 Bc4 Rc7 Rd7 Nd8 Bd5 Rc6 Rdc7 Qf7 d7 Rce6 Rc6 Bd6 Rg5 Qe7 Rc5 Be5 Rb5 Bc3 Rg7 Be1 Bd2 c1N Nc2 Nd3 Bc3+ Ne5 Rg4 Qb1 Na1 Bd2+ Kh2 Bc1 Kg1 Qb3 Rg7 Qa4 Rg6+ Kf7 f6 Qa7 f5 Nc4 Be5 Nd6 Kh2 g1N Kh1 Nc6 d8Q Ne2 Qd7 Ned4 Kg1 Nd8 Qc7 Nb3 Qc4 Nc5 Qe2 Na6 Qg4 Nc6 Nc2 Nc7 Na1 Ke8 f7+ Kd8 f6 Na8 Rc7 Ba6 Rb7 Kc8 Nd7 Nd8 f8R Nc4 f7 Nf6 Re8 Nd6 f8R Rc4 Rb8+ Kc7 Rf7 Re4 Nf8 Ng8 Rf4 Nf6 Rba5 Bf1 Rb5 Rg8 h8R Rg7 Bc4 Kc6 h7 Rf7 Rb7 Rg7 Rh6 Rg6 Rhh2 Rh6 Rhf2 Rh5 Rg8 Rh6 Rba5 Rh2 Rg6 Rh4 Bb5+ Kd5 Bc6+ Kc4 Bd5+ Kd3 Rb5 Rh1+
RNKB4/P2bB1B1/R3rBkN/q3pnr1/1Q1B2B1/bBbP3n/1r6/1q3r2 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 b5 Kd4 c5+ Ke5 g5 h4 c4 f4 b4 a4 b3 h5 g3 a6 b2 a7 c3 f6 g2 d6 e6 d3 g4 f5 c2 d7 g3 h6 Ne7 Kd6 e5 a5 Rh7 a6 Nbc6 Qe1 Rh8 h7 Na5 Be3 c1Q Ne2 g1R Nd4 g2 Nc6 Rb8 a8B Rb7 a7 Bh6 Nd2 b1R Bd4 Qc3 Ne4 Rc1 Ng5+ Kf8 f7 Kg7 f8B+ Kf6 Nb8 Qc2 Be2 Rb2 Qb4 Nb3 Bg4 Qa5 d8B Nc5 Bd5 Bd7 Nf7 Rcf1 Bb3 Bd2 Nh6 Bc3 Bg7+ Kg5 f6 Kg6 f7 Re8 f8B Qb1 h8B Ne6 Bf6 Ng5 Bhg7 Nh3 Ra4 Qd5+ Kc7 Qa5+ Kb7 Nf5 Ra1 Re6 Bf8e7 Rf3 Ra3 Rgf1 Ra2 g1B Rh2 Rg3 Rf2 Qc5 Ra6 Qa5 Rc2 Be1 Rc8 Bc3 Nc6 Be3 Ra8 Bc1 Nb8 Rgg1 Be2 Rg5 Bg4 Ra2 Bf3 Ba3 Bg4 Ba4 Kc8 Rb2 Rb6 Be8 Ra6 Bd7+
k2K2nQ/r1B1b1R1/4B3/B2b4/p1PNN1n1/1n1p2BR/4qr1P/bB1BBr2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kg3 g5 Kg4 d5+ e6 d3 Kf5 d4 c4 f6 b4 g4 e4 d2 e5 a4 h6 g3 b6 g2 b5 Ra6 b7 Ra5 b6 Ra8 h7 Ra6 Ra3 Bd6 Ne2 g1B Nbc3 Qd7 Ne4 Kd8 Bh3 Bf2 Rg1 Qb5 Rg7 Nc6 b8B Qb3 b7 Qd3 Bc7+ Ke8 b8B Bb7 e7 Kd7 e8B+ Kc8 Ke6 f5 Bg6 f4 Bg4 Qc2 Rh3 f3 Ba3 Qb2 Bb4 Be7 Bba5 Ra7 Qa1 d1N B4h5 Qc2 Kf7 Ba8 Ke8 Kb7 e6 Ne3 Bg3 Qb2 Bbc7 Ng4 Be1 Na5 Bf7 Bb4 e7 Nb3 Kd8 Qd2 e8B Be7+ Kd7 Be3 Be6 f2 Beg6 f1R Qb2 Bf4 Ba5 Be5 Bgf5 Bf8 Kd8+ Kb8 Qa1 Bd5 Bfg6 Ka8 Qb2 N8h6 Bc7 Rg8 h8B Be7+ Kd7 Rb8 Rf7 Rb6 Nf2 Nc1 Bb1 d3 Ne4 Nf2 Qa1 Bb2 Bc3 Ng8 Ba5 Bc3 Ke8 Rb2 Bf3 Nb3 Bfg4 Ba3 Kd8 Rc2 Bf3 Ng4 Re7 Bf6 Qe5 Bb2 Nd4 Ba1 Bd1 Qe3 Qh5 Rcf2 Qh4 Qe2 Qh8 Be5 Rf7 Bd6 Rg7 Be7+
2NRR1KR/2Pb4/rPp2R1B/1R6/R1b3Q1/1qrBpqR1/4N3/b1nr1kn1 w - - 0 1 illegal: No possible last move
6QB/1N1n2B1/pRp4n/1N1rR3/P1BB2q1/b1P1B1nn/1kB3b1/1b2B1Kb w - - 1 2 legal: proof: h4 f5 e4 g5 exf5 gxh4 c3 b5 c4 a6 Nf3 Ra7 Ng1 Rb7 cxb5 Rb6 Ke2 Rc6 Ke1 Rc3 dxc3 Bh6 Qg4 Bg7 Qd1 Bf8 g4 Kf7 b4 Kf6 f4 d5 Kf2 h5 a4 e5 g5+ Kg7 f6+ Kg6 f7 Kf5 b6 Ke4 g6 h3 b7 h2 b5 d4 g7 d3 b6 h4 f5 d2 f6 c6 Bc4 h3 Ne2 Bf5 Nf4 Rh5 Qg4 d1B Re1+ Be2 Na3 h1N+ Kg1 Qd1 Nb5 Bd7 Rb1 Qd4+ Be3 Bc5 f8B Bd3 f7 Ba3 Bc5 Ng3 f8B Nh6 g8B Rg5 Rb4 Bb1 Bg7 Be6 Bf7 Nd7 b8B Bd5 b7 Qd1 Qe6 Qg4 Bcd4 Rf5 Bg6 h2+ Kf2 h1B Qg8 Bg2 Kg1 Bh1 Ne6 Bg2 Bb3 Kd3 Nd8 e4 Bc4+ Kc2 Bbe5 Bh1 b8B Bg2 Bg5 e3 Nb7 e2 Bge3 Bde4 Bef6 Rd5 Bbe5 Bh1 Bh4 Bg2 Bh8 Bh1 Beg7 Bg2 Rf1 e1N Rf5 Nd3 Re5 Nf4 Bh7 Ngh5 Be1 Ng3 N5d6 Bh1 Rb6 Bg2 Nb5 Kb2 Bf5 Bh1 Bh7 Beg2 Bc2 Nh3+
nb1NbN2/1N2N1KP/p2pr1NR/B2r4/1N1P2qn/4B3/b4R1p/4QNnk w - - 0 1 illegal: No proof kernel
6B1/BQ2bBrp/nnpP3K/1B1qbp1R/1rqr3B/2PB3k/R1B1N2N/8 w - - 0 1 legal: proof: e4 g5 b4 a5 f4 axb4 fxg5 d5 exd5 Qd6 g4 Ra6 h4 Bf5 h5 Bg6 hxg6 Qd8 Ne2 Ra5 Ng1 Ra8 Kf2 Kd7 Ke3 e5 d4 f5 a4 b5 c3 b3 d6 Ke6 d5+ Kd7 g7 e4 Kf4 b2 g6 e3 g5 b4 a5 e2 a6 e1B a7 b3 Ne2 Na6 Ra2 Ne7 g8B Qe8 g7 Nc8 g6 Rb8 Kg5 Ne7 a8B Qf7 Kh6 Rb7 Nd2 b1Q Nf3 b2 Rh5 Bg3 Nh2 Be5 Be3 Qe4 Ba7 b1R Qb3 Nc8 Qb2 Qe6 Bf7 Be7 g8B Nb6 Qb3 Kd8 d7 Qc4 Be8 Rd1 Bgf7 Rd4 Qb5 Qec6 Qb3 Q6b5 g7 Rg8 Qb1 Rb8 Bc6 Qa5 Ba4 Qac5 Bc2 Rb7 Be6 c6 B8f7 Kc7 d8B+ Kd6 Bc8 Na8 Qb2 Rb4 Qb3 Nb6 Qb2 Bf8 Bh4 Be7 Qb1 Bg3 Qb2 Ke5 d6 Q5d5 Bb7 Rb8 Bc8 Rb7 g8B Rd7 Nc1 Kf4 Bfd3 Ke3 Qb3 Kf2 Ne2 Kg2 Qb1 Be5 Bb7 Nc7 Ba6 Kh3 Bb5 Na6 Qb3 Nc5 Qa4 Rc7 Qa6 Rd7 Qb7 Na6 Bg6 B7f6 Be8 Rg7 Bef7 Be7
2qBnKb1/qBn2PB1/R3Q2R/Nk1p2pB/8/r1BP1bq1/1p3Br1/2B1N3 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 Ra5 Nc3 Ra7 Nb1 Ra8 c3 b5 Ba3 e6 Ne2 b3 Bb2 b4 Bc1 b2 Ng1 b3 Na3 Ra4 Nb1 Bb4 cxb4 Ra8 Ke2 c5 Kf3 d5 Kf4 Kd7 Ke5 Kc6 h4 g5 a4 c4 f4 c3 h6 c2 h5 Na6 a5 Nc5 f6 Na6 h7 Qe8 d3 Nh6 b5+ Kc5 f7 Qe7 f8B Bd7 b6 Rg8 h8B Kc6 b7 Kc5 b8B Qd6+ Kf6 Bc6 f5 Ng4+ Kf7 e5 f6 e4 h6 e3 h7 e2 Qe1 Rg6 Bfg7 Rh6 Na3 b1B Bc7 b2 Bd8 Bb7 Nc4 Bc8 Nf3 Qg3 Kf8 Nc7 a6 Kb5 a7 Rh2 Na5 Rg2 Rh6 Be6 Ra3 Bg8 f7 Nf6 Ra4 Rb8 a8B Nfe8 Bb7 Ra8 Bc3 Qf2 Bhg7 Qa7 h8B Ba2 Bgd4 Bb3 Ra2 Ba4 Bf2 Bb3 Bhg7 Ba4 Qd1 e1Q Qe2 Bb3 Qe7 Qe5 Qf6 Qg3 Qe6 Ba4 Ne1 Bb3 Bf4 c1Q Be2 Bd1 Bh5 Qc2 Bc1 Bf3 Nb3 Qb6 Ra1 Ra3 Na5 Qa7 Nc4 Rb3 Ra6 Ra3 Na5 Na8 Bb4 Qc8 Bbc3 Nac7
3n2qR/2pk4/2R2brR/PR4N1/QR3B2/2Pqp3/2Rp1r1n/K1n1bRNB w - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 f5 b4 axb4 d3 e5 Bd2 b6 Bc1 Bb7 exf5 e4 Bh3 e3 Bf1 Be4 dxe4 Ra7 Qd3 Ra4 Qd1 Ra8 a4 g5 h4 d5 f4 g4 f6 b3 c3 b2 f5 b5 h6 d4 h7 g3 a5 b4 e5 d3 h5 g2 e6 b3 e7 Qd7 h6 Ra6 Rh2 Rb6 Nd2 b1N Ne4 b2 Qa4 Ra6 Kd1 Na3 Ng5 Ra8 Rb1 Qb5 f7+ Kd7 e8R Be7 f8R Nc6 f6 Qa6 f7 Nc4 Rb8 Nf6 Rb4 Rg8 h8R Nd2 h7 Qc8 Re8 Nb3 f8R Bd8 Re6 Ng4 Be2 Rg6 Rf1 Bf6 Bf3 Qb8 Bd2 Ra6 Be1 Qg8 Bg3 Nc1 Bf4 Ra8 Rb5 Nd8 Rc6 Rb8 Rh6 d2 Kc2 Rc8 Ra1 Ra8 Kb1 Nh2 Ra2 Rb8 Ne2 g1B Bh1 Bf2 Ng1 Be1 Rb4 Qf7 Rf8 Qg8 h8R Rb5 Re8 Rf5 Re5 Bg7 Rec5 Rf7 Rcb5 Bf6 Kc2 Ne2 Kb3 b1Q+ Rb2 Qc2+ Ka2 Nc1+ Ka1 Qd3 Rc2 Be5 Bg3 Rf2 Bf4 Bf6
1k2B2N/1p1nNBbR/4Q1pn/pP4r1/2K1RRR1/1n2r1P1/b1Rp3R/R2n4 w - - 1 2 illegal: No proof kernel
2Nn1n2/3bB3/5P1Q/3BB3/p4bNP/K3rQ1B/1NR1n2q/RQ1bkr2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 d4 h5 g4 e5 gxh5 exd4 b4 c5 bxc5 Qd6 Be3 Qd7 Bc1 Qd8 Kd2 Kf7 Kc2 Kf6 Kb2 Ke5 f4+ Ke4 h4 a5 d6 g5 c6 g4 b6 a4 h6 d3 h7 d2 b7 Ke3 d7 Kf2 c7 g3 f6 g2 f5 Ne7 f7 Ra5 f6 Ra7 Rh2 Ra5 Qf3+ Ke1 Ka3 d1B Nd2 Ra7 Bc4 Be2 Bb2+ Bd1 Nh3 g1N Nf2 Bg7 f8N Ra5 Bd5 Ra6 Nc4 Ra5 Be5 Ng6 Ng4 Rc5 Rc2 Ne2 Nb2 Nc6 b8Q Bh6 Qb5 Rg8 h8Q Bf4 Qh6 Rc3+ Qb3 Qe8 d8B Re3 Nd7 Nf8 Nb6 Bd7 Be7 Qb8 c8B Nd8 Qd3 Bb5 Bce6 Bd7 Nc8 Rg5 Nf2 Qc7 Bh3 Rg1 Ng4 Rf1 Qb3 Qa5 Qd3 Qd2 Qb3 Nc3 Qa2 Qh2 Qb1 Ne2+
k2r1n2/1p3nQR/4RP2/1P1K2BR/1N1N2N1/rnb2N2/5Q1Q/2B2nqr w - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b4 a6 Bxa6 Bd7 a4 Bb5 Bxb5+ Kf7 Be8+ Kxe8 Ke2 Kd7 Kd3 Kc8 Kc4 e5 d4 g5 f4 c5 h4 g4 a5 e4 f6 g3 f7 e3 f5 g2 a6 e2 b5 e1R a7 Qf6 h6 Qb6 d6 Qd8 d5 Nc6 d7+ Kc7 d6+ Kb6 h7 Bh6 f8N Re5 h5 Re1 Nd2 Nce7 Ng6 Rf1 Ndf3 Rb8 a8R Qf8 d8N Bg5 h6 Be3 d7 Bd2 Nc6 Rd8 Nge5 Qg7 Qe2 Ng6 Nfd4 Bc3 Ngf3 g1N Qf2 Ne2 Kd5 c4 Rh5 Rh1 Nb4 Nf8 Ng4 Ng3 R1a6+ Kc7 Rd6 Nf1 Re6 Qg5 Raa6 Kb8 Rac6 Ka7 Rc7 Ra8 d8B Qe3 Qb2 Qg1 Qf2 Kb8 Bh4 Ra3 f6 Ka8 Bhg5 Ne7+ Ke5 Nc8 Kd5 Nd6 Rce7 Rg8 h8Q Nf7 h7 Bd2 Bh4 c3 Bg5 c2 Qg7 Be1 h8Q Bc3 Bcf4 c1N Bd2 Nb3 Bc1 Nd7 Qhh7 Re8 Qhc2 Nf8 Qh2 Ka7 Qcf2 Rd8+ Rd7 Nh6 Qg8 Ka8 Qh8 Re8 Rh7 Nf7 Qg7 Rd8+
4nR2/QQ1P3Q/2rB2P1/Q1q2nR1/2Nr1N2/1bBr3r/2Np4/1BK2k1q w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 b4 Ke7 d4 Kd6 Kd2 a5 b6 h5 b7 c5 b5 a4 b6 c4 f6 a3 f7 a2 f8B+ Qe7 Bb2 h4 Ne2 h3 Bc3 e5 Nf4 h2 Bd3 e4 Rf1 h1R Kc1 e3 Na3 Nc6 b8Q+ Kd7 d6 Bb7 d5 R8h7 Qa7 R1h3 Qd2 R7h4 Nc2 Nf6 g8N Nd4 g7 Rd8 g6 Ne8 Nh6 Nf5 g8Q Qe5 Rb1 a1Q Nf7 Qd4 Rg1 Qc5 Rg5 Rg4 Qh7 Rgh4 Ne6 Rd4 Be4 Rd3 Nf4 Rd4 Qa4+ Bc6 b7 Rd3 Qa5 Ba4 b8Q Bb3 Qab6 Qa8 Q8a7+ Qb7 Bcg7 c3 Ne5+ Kc8 Nc4 Kd7 Na1 c2 Bc3+ Kc8 Qb5 Rd4 d7+ Kc7 Kb2 Rd3 Rf1 c1R Be7 Rd4 Bb1 Rd3 Qb4 Rd4 d6+ Kc6 Qba5 Qa8 Q5c7+ Kb5 Nc2 Qh1 Rf2 Rd1 Rf1 Rc8 d8Q Rd3 Qcd7+ Rc6 Qd7c7 Rd4 d7 Rd3 Bd6 Rd4 Nb6 Rd3 Qcb7 Rd4 Nc8+ Kc4 Qda5 Rd3 Qh2 R1d2 Kc1 Rd4 Qf2 R2d3 Qd2 Ng3 Qd1 Rd2 Ne6 Kd3 Rf8 Nf5 Nb6 Rh5 Qg1 Ke2 Nc4 Rh3 Qd1+ Kf2 Nf4 R2d3 Ne1 Kf1 Qd2 Qhd5 Nc2 Qe4 Qa2 Qh1 Q2a5 exd2+
1k5q/4Q2n/4K1PR/1B3qpq/qN5N/4PQ1Q/3brnN1/1BBnRN2 w - - 0 1 legal: proof: g4 g5 b4 e5 h4 a5 bxa5 b5 a4 d5 axb5 f5 c4 f4 cxd5 Bf5 h5 Bg6 hxg6 Ra7 Nc3 Ra6 Nb1 Rf6 f3 Rf5 gxf5 e4 Qb3 exf3 Qc2 Bd6 Qd1 Bf8 Kf2 Kd7 d4 Kc8 d6 h5 d7+ Kb7 b6 c5 a6+ Ka8 d5 h4 e3 h3 d6 h2 b7+ Ka7 f6 c4 f7 c3 Nd2 c2 Bb5 Qb6 d8Q Nc6 b8N Qd4 d7 Nb4 Nf1 Nf6 Qe7 Nh7 d8N+ Qd7 Qdd6 Nd5 Ne6 Nc3 Nc6+ Ka8 a7 Nd1+ Ke1 f2+ Kd2 f3 Kd3 Bg7 Ke4 Bc3 Kd5 Bd2 Nf4 Qg4 Qed7 Qh5 Nb4 Rb8 f8Q Rd8 Ba3 c1N Qh3 Nd3 Bc1 Rc8 Qf7 Rc2 Ng2 Ra2 Qde7 Rb2 Ng3 f1Q Ke6 f2 Nf3 Qg1 Qff6 f1Q Nfh4 N3f2 Rb1 Qd3 Nf1 Ra2 Qff3+ Qe4+ Kd7 Kb7 a8B+ Kb8 Kd6 Qf5 Be4 Rc2 Ra1 Rb2 Bb1 Ra2 Ne1 Qgg4 Neg2 Qge4 Ng3 Qc4 Re1 h1Q Nf1 Rc2 Ra2 Bc3 Ra7 Re2 Rd7 Bd2 Rd8+ Qfc8 Rh8 Qb3 Ke5 Qa4 Kd5 Qf8 Ke6 Qh2 B1d3 Qf4 Bb1 Qf5+ Kd6 Nf6 Rh7 Qh8 Rh6 Qfg4 Ke5 Nh7+ Kd6 Qf4+ Ke6 Qf5+
qB5k/2Q1r1b1/R3NRp1/3q1r2/1Q2NP2/R1PbN3/Q1Q1K2B/1rqr4 w - - 0 1 legal: proof: f4 b5 g4 f5 gxf5 Kf7 h4 c5 f6 b4 e4 b3 d4 g6 dxc5 Ke6 f7 Nh6 h5 Nf5 exf5+ Kf6 h6 Nc6 axb3 Nd4 b4 Ne6 b5 Ng7 hxg7 Qc7 Ke2 Qb6 Ke1 Qd8 g8Q a5 b4 e5 c3 h5 b6 d5 c6 d4 b5 h4 b7 a4 b8Q d3 c7 e4 b6 d2+ Ke2 e3 b7 h3 Nf3 h2 Ng5 a3 Qc2 d1R Nd2 a2 Nc4 Qd5 Ne4+ Ke7 f6+ Ke6 Rg1 Bg7 f8R+ Kf5 f7 Be6 c8Q h1R Qcc7 R8h5 Bd2 Ra4 Be1 Ra7 Bg3 Rg5 Bh2 Rh5 Rb1 a1Q Rb6 Qa2 Ra6 Rb1 Kf3 e2 Rg2 e1Q Bd3 Qc1 Ke2 Rd1 Rf2 Kg4 Ne3+ Kh4 Rf1 Re5 Rg1 Kh5 Rg5+ Kh6 Rf5 Qd7 Rf6 Bc4 Rc8 Qaa3 f8N Qd5 Ne6 Rf5 Rd8 Qa1 Rdd6 Qa2 Ra3 Qa1 Qgf7 Kh7 Rda6 Qa2 Qbf8 Qa1 Qb4 Kh8 b8B Qa2 Qca5 Re7 Qc7 Qa8 Rb3 Qa5 Ra3 Q5d5 Qe8+ Kh7 Qea4 Kg8 Qa2 Kh8 Q4c2 Bxd3+
4KQ2/Rp1p1rB1/1Q2Rb1N/2PnRnr1/3n1n1Q/N3P2q/6N1/2R1B1k1 w - - 0 1 legal: proof: d4 a5 b4 c5 dxc5 Qc7 bxa5 Qg3 Nc3 Qd6 Nd5 Qf4 Nb6 Qc7 Nxc8 Qd8 g4 f5 gxf5 e5 f4 h5 fxe5 Qg5 Bh3 Qd8 Bg4 hxg4 Kf2 Kf7 Kg3 g5 h4 Qc7 c4 Kg7 a4 Kh6 c6 Kh5 c5 Qd8 f6 Qe7 f7 Qd8 a6 Qc7 a5 Rh6 e3 Re6 a7 Na6 Ne2 Nb8 a6 Qa5 c7 Qc3 Nb6 Qa3 c8Q Rh6 e6 Rh8 e7 Qa4 e8R Qc6 Qa4 Bg7 f8B Qb5 Qd8 Qb1 Nc4 Bd4 Bd2 Qb5 Be1 Ne7 Na3 Rh7 Bg7 Nd5 Qb6 Nc6 Re5 Nce7 Rc1 Rg8 a8R Qc4 Re6 Bf6 a7 Qd3 Re8 Qf5 a8Q Qf1 Rh2 Qh1 Rf2 Qf1 Rf5 Qh1 Rfe5 Qh3+ Kf2 g3+ Kf3 g2+ Ke4 Kg4 h5 g1N h6 Nf5 Nf4 Ne2 Ng2 Ned4 Rc8 Rhh8 h7 Rf8 Rd8 Rhg8 h8N Rf7 Rc8 Qh6 Rcc6 Kh3 Qf8 Kh2 Rc8 g4 Ra8 g3 Ra7 Kg1 Qab4 Re7 Nf7 Qh3 Nh6 Rf7 Qd2 Kh1 Qf2 Kh2 Qf4 Kh1 Qh4 Kg1 Bh8 Rg6 Bg7 Rg5 Kd3 Nb4+ Kc4 Kh2 Nf4 g2 Ra4 g1N Ng2 Na2 Kd5 Nge2 Ra8 Kg1 Ra7 Ne7+ Kd6 Nb4 Kc7 Nf4 Kd8 Nbd5 Ke8 Nef5
1Q4br/K4RBR/nn1r1Bp1/4NP2/r1R5/1B1p1Q2/2PbB3/2k1NQr1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 c5 d4 cxd4 a4 b5 axb5 f4 a6 f3 b6 Nc6 exf3 Nb8 f4 Qc7 f5 Qa7 bxa7 Rh6 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 Kb6 d5 h4 e5 f4 d3 f6 d2 h6 Ke3 f7 g6 h5 e4 h7 d4 h6 d3 f5 Bd6 f8R Bg3 Ra4 Nc6 Nf3 Nd4 Rc4 Ne7 Na3 Rg8 h8Q Bf2 h7 Nb5 Bb2 Be1 Bf6 Be6 Be2 Nc7 Rf7 Ned5+ Kb7 Rad8 a8Q Rd6 a7 Nb6 Qb8 Rf8 a8B Na6 Ka7 Rc8 Qb1 d1R Bd5 Bd2 Ne1 Rc1 Qg7 Rh8 Qgf8 Rd1 Qa8 Rc1 Qfb8 Rd1 Qa1 Rb1 Rh5 Rb4 Qab7 Ra4 Qc1 Re8 h8B Rc8 Bhg7 Rh8 Rfc7 Bf7 Rh7 Bg8 Qb1 Ba5 Be6 Kd2 Rf7 e3 Qf3 Bc3 Ng2 Bb4 Qbf1 Bc3 Ne1 Kc1 Rf4 Bd2 Nc4 Nd5 Ne5 Nb6 Bd1 e2 Bb3 Kb2 Rc4 Kc1 Ng2 e1R Be2 Rc6 Qg1 Rf1 Ne1 Rd6 Qgg2 Rh1 Qgf1 Rg1
1K3Brk/n1q1p2q/1n2r1Q1/2BNR3/1pPP4/N3BNN1/2rRQ1n1/5R2 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c6 b4 Ra7 bxa5 Ra8 Bb5 cxb5 Nf3 d5 Kf1 g6 Ng1 Bg7 Ke1 Bc3 dxc3 d4 Ke2 d3+ Ke1 d2+ Ke2 Be6 Kf1 Bd5 Ke2 Be4 Kf1 Bd3+ cxd3 Kf7 Qb3+ Kf8 Qd1 Ke8 Kg2 Kf8 Kf3 Kg7 Ke4 b4 a4 b5 h4 b3 f4 b2 a6 b4 f6+ Kh7 a7 g5 h6 g4 c4 g3 f5 g2 f7 Qd7 f8B Qe8 Kd5 Nd7 Kc6 Ndf6+ Kc7 Qb5 a5 Ne4 h5 Rd8 a8N Rd4 f6 Qc6+ Kb8 Nc3 a6 Na2 a7 Qd7 f7 Rd6 Nc7 Ra6 a8R Qd5 Qe2 d1R Rh2 Rg6 Be3 Rf1 Ra5 Qd4 Re5 Rf3 Nd5 Rc6 Na3 Nc3 Rf1 Rf2 Nf3 g1N Bg7 b1Q f8B Nf6 Rg2 Kg8 h7+ Kf7 h6 Qf4 d4 Rg8 h8Q Nb5 h7 Nh3 Bh6 Qg3 Bhf4 Na7 Rh2 Re6 Qg7+ Ke8 h8N Qh7 Nf7 Nd7+ Ka8 Nb6+ Kb8 Rg2 N7g5 Rf2 Qh6 Rg2 Ne4 Kf7 Rh5 Rf2 Bd6 Nf4 Bc5 Ng2+ Re5 Qf4 Qe1 Rc2 Qe2 Rg7 Ng3 Kg8 Qh5 Kh8 Qg6 Rg8 Qd1 Ne1 Rd2 Ng2 Qe2 Qe4 Nf4 Qc6 Nd5 Qc7+
3NqQ2/4r2k/1Br5/5NR1/1nQ4p/p1BNQP1r/1nRP2n1/1RK3Nn w - - 0 1 legal: proof: c4 d5 cxd5 f5 e4 a5 exf5 g6 b4 Bg7 a3 Bd4 a4 b5 axb5 a4 Ra2 Ba7 Ra1 Bb6 h4 g5 g3 g4 Bh3 Ba5 bxa5 gxh3 h5 Nc6 g4 Ba6 g5 Nb8 g6 Bc8 g7 Be6 Qc2 Bf7 Qd1 Bg6 hxg6 Qd7 Ra2 Qc8 Ra1 Qd8 d6 h5 b6 e5 b7 c5 a6 c4 f6 c3 a7 a3 f7+ Kd7 Rh2 Ke6 f8Q c2 d7 h4 Qdf3 e4 Bb2 c1N Kd1 e3 Nc3 Qb6 Nce2 Rh7 Rg2 h2 Rg5 h1R Rb1 Nc6 b8B Nf6 g8N Ng4 g7 Nb4 Ne7 Ncd3 Nc1 Qc6 Nf5 Rh3 Bc7 Rc8 g8Q+ Rf7 a8R Qb5 Qgg7 Re7 Bb6 Rc2 Qd4 Rc3 Qd8 Kf7 Rc8 Qc6 Rc7 Qa8 Q8h8 Qe8 Qe2 Rc2 f3 Rc4 Qh6 Rc5 Qe4 Rc4 Bg7 Kg8 d8N Rc3 Qf6 Kh7 Qf8 Rc4 Nb3 Rc2 Nc5 Rc3 Qe5 Rc4 Qc3 Nb2+ Kc1 Nf2 Qd3 e2 Qe3 e1N Nd3 Ng2 Qc2 Rd4 Qb3 Rd5 Rc2 Nh1 Qc4 Rc5 Bc3 Rc6
1RQ3r1/2n1Q3/pQr3BP/3BPBK1/B5p1/N1Nr2kr/1n5R/1Nn3n1 w - - 0 1 legal: proof: h4 h5 e4 g5 d4 c5 dxc5 b5 f4 e5 a4 g4 axb5 Bh6 Be3 Bg5 hxg5 h4 Bd4 exd4 e5 h3 Be2 h2 Bf1 Bb7 f5 Qf6 Nh3 Bd5 Ng1 Be6 fxe6 Qf3 Qd3 Na6 Qd1 Qh3 gxh3 Nb8 Kf2 Ke7 Kg3 f5 Kf4 d5 c4 d3 b4 d2 c6 a6 c7 d4 c8N+ Kf8 b6 Kg7 e7 Kg6 e8B+ Kh7 g6+ Kh6 c5 Kh5 b7 Kh4 b5 d3 b6 Ra7 c6 Nf6 c7 Rh5 g7 Ne4 g8B Ng5 Ne2 Nc6 b8Q Na5 b7 Rh8 Nd6 Nb3 c8B Nf3 Bd5 Nc1 Nec3 Rg8 Bg6 Ng1 Nc4 Ra8 Qa4 d1R Qe8 d2 Nca3 Ra7 Bd7 Ra8 Qd6 Rc8 b8Q Rc5 Qbb6 Rc6 Ke3 Kg3 h4 f4+ Ke4 f3 Kf5 f2 h5 Rh8 h6 Rg8 Bd3 f1N Kg5 Ne3 Qdc7 Rf1 Qcb8 d1N Qbc8 Nb2 B3f5 Rd1 Qe7 Rd3 Ra2 Re6 Ba4 Rc6 Bdb3 Nd5 Bc4 Nc7 Bd5 Nge2 Rf1 h1R Rf4 Nd1 Rb4 Ng1 Rh2 Nb2 Qa5 Rd2 Rb8 Rd4 Qb6 Rd3 Rf2 Rh4 Rh2 Rh3
1n1Q4/1Q1r1rq1/pR5P/2p1B1N1/3b2NB/3kN1Kp/Q1b2P2/1R1r1RN1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 e4 f5 exf5 h4 c4 h3 cxd5 Kf7 b6 Bd7 b7 Ke8 gxh3 Bc8 h4 Na6 h5 Nb8 h4 g6 b5 a6 b6 Bd7 h6 Be6 h5 Qd7 h7 Qd8 h6 Nc6 Be2 Bc8 Bh5 Na7 bxa7 gxh5 b8R Kd7 d4 Kd6 f6 e5 f7 c5 Qb3 e4 Bb2 h4 Na3 e3 Nc4+ Kc7 d6+ Kc6 d7 Kd5 Rb6 Ke4 d5 h3 d6 e2 Qa2 Qe8 d8Q Rb8 a8Q+ Bb7 d7 Qe7 Rb1 Bc6 Qb7 Nf6 Ne3 Bd5 Be5 Bg7 f8N Kd3 Ng6 Rf8 h8N Bb3 Nf7 Bc2 Ng5 Rf7 N1f3 Ne4 Rf1 Nf6 Ng1 Qf8 Ne7 Ra8 N7d5 Ra7 Ng4 Bh8 Nde3 Qg8 Qe8 Qg7 d8B Nd7 Bdf6 Nb8 Qd8+ Rd7 Ne4 Rd5 Bh4 Rd4 Ng5 Rd7 Bd6 Kd4 Kd2 e1R Bf4 Rc1 Ke2 Rd1 Kf3 Kd3 Bd6 Rf7+ Kg3 Rd7 Qf3 Rf7 Be5+ Rad7 Qb7 Qf8 Bd6 Bd4 Be5 Qg7
4r1Nq/1pQ1pNp1/3rk3/qBK1PN2/7N/B1RqPRR1/1Q1qn3/6B1 w - - 0 1 legal: proof: b4 a5 c4 axb4 g4 h5 gxh5 d5 cxd5 Na6 a4 Rb8 f3 Bh3 Nxh3 Rh6 a5 Ra8 Ng5 Rb6 Ne6 Nf6 Nxf8 Nc5 a6 Ng8 a7 Ne4 fxe4 Rb8 a8Q Rh6 Qa7 Ra8 Qb8 Rh8 Kf2 c5 Ke3 f5 h4 Kf7 d4 b3 d6 b2 e5 c4 d7 c3 d5 c2 Kd4 f4 h6 f3 h7 f2 h5 Qc8 d8R Ra6 d6 Ra3 d7 Re3 h6 Nf6 Qd2 Rg8 Ng6 Ne8 h8N+ Ke6 h7 Rb3 Rg1 Rf8 Rg3 Rb6 Nc3 b1Q Nb5 Ra6 Qc7 Rb6 Nh4 Qa2 Nd6 Qca8 Rc8 Qb2+ Kc5 Rf7 d8B Qb8 Ndf5 Rd6 Raa3 Qb1 Raf3 Qa1 Ba3 Rf8 Nf7 Nf6 h8N Nd5 N7h6 Nf4 Ng8 Re8 Nf7 c1Q+ Qc2 Qd2 Qb2 Rd7 Qc6+ Rd6 Bb6 Qa2 Qc7 Qa1 Ba5 Qae1 e3 Qa1 Bb5 f1Q Bc3 Qfd1 Bcb4 Qd3 Be1 Ne2 Bf2 Q1d2 Bg1 Qa8 Bf2 Qh1 Bg1 Qaa5 Rd8 Ra6 Rd4 Qh3 Rc4 Rd6 Rc3 Qh1 Ng6 Qh6 Ngh4 Qh8
1B2NbRb/2KNn3/QRr1QPQB/n1Q5/k3r2q/qrP1bB2/3q4/3N4 w - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 d5 Kd3 Kd7 b4 h5 g7 a5 g6 e5 b6 Kc6 g5 Kb5 b7 h4 Nf3 h3 Bg2 a4 Qe2 a3 Rg1 h2 Nc3+ Kb6 b5 Ka5 b6 h1Q Nd1 a2 Rb1 Ne7 g8N a1B g7 Qh3 g6 Nbc6 b8Q Ka4 b7 Na5 Rb6 Rh4 Qc7 Re4 Nf6 Rb8 g8Q Qh4 g7 Qd6 Bh6 Qa3+ Qc3 Bb2 Qe6 Ba1 Kd2 d3 g8Q d4 Ne8 Bb2 Qg3 Ba1 Qc5 Bb2 Ke1 d2+ Kf2 d3 Bh1 Bc3 Kg2 Bd4 Qgg6 Be3 c3 Bd4 Nf2 d1R Qf1 d2 Qa6 Rb1 Nd1 Rd8 b8B Rb3 Ng5 Rd6 Nh7 Be3 Nhf6 Bd4 Nd7 Be3 Nf2 d1Q f6 Qd2 Kf3 Bg7 Nd1 Bh8 Bg5 Qaa2 Bf4 Qa3 Bg3 Bh6 Bf4 Bf8 Rg4 Re2 Be3+ e4+ Kf4 Re1 Ke5 Re2 Bf4 e3 Bb7 Re1 Bf3 e2 Rb5 Rf1 Rb7 e1B Rb6 Bf2 Rg2 Be3 Bh6 Re1 Rg3 Rd3 Rg5 Bd4+ Kd6 Re4 Kc7 Be3 Qh5 Rd5 Rg8 Rd6 Qg6 Rc6+
Q3NB1Q/1bbB4/1nNbQ1QP/RrqPrb2/3N1n2/2K4R/R7/1kb1n3 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 f4 Kd7 d4 Kd6 Kd2 g5 h4 c5 h6 e5 b6 c4 h5 e4 h7 g4 h6 b3 f6 b2 f5 e3+ Kc3 g3 f7 g2 b7 e2 f6 e1N Qc2 Bf5 Na3 b1B Nf3 g1B Ra2 Bh2 Bh3 Nc6 b8N Na5 Nc6 Rb8 Bg4 Bc8 Bd7 Qb6 Qg6 Bb7 Bg5 Bg3 Rh3 Qc5 Bc1 Be7 f8Q Bf5 f7+ Nf6 Qc8 Re8 f8R Bd8 h8Q Bc7 Rf7 Re6 Bg5 Nh5 Bf6 Bh2 Bg7 Nf4 Re7 Bg3 Bf8 Bh2 Nc2 Bg3 Ne3 Bh2 Ng4 Bg3 Nf6 Re5 Kb2 c3+ Ka1 c2 Kb2 Nc4+ Kc3 c1B Qce8 Bh2 Qef7 Bd8 Qe6+ Kc7 d6+ Kb6 d5 Kb5 Ne8 Bc7 Rd2 Ka4 Nfd4 Ka3 Rb2 Nf3 Rb5 Ka2 Ra5+ Kb1 Rf7 Bc2 Rf5 Bg3 Rg5 Bh2 Rg2 Bf5 Rga2 Bg3 Bc8 Ne1 d7 Ba6 d8Q Rb5 Bd7 Bb7 Qc8 Re2 Bd6 Nh5 Bf8 Bgd6 Ne7 Nf4 Qa8 Re5 Nec6 Nb6#
bNb1R3/B2Q3Q/nb2n1qK/3P2N1/1RN5/3RBPQ1/rn2knr1/1Q4r1 w - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b4 h5 gxh5 a6 b6 Kd7 b5 Nc6 b7 Ke8 b6 Nb8 Bb5+ axb5 d6 Kd7 Ke2 Kc6 Ke3 Kc5 Kf4 Kd4 Kg5 Kd3 h4 e5+ f6 c5 h6 e4 h5 e3 f3 c4 d7 b4 h7 e2 h6 e1N Kg6 c3 f7 c2 Ra2 b3 Na3 b2 Nh3 b1B Nc4 Bc5 f8B Ng2 Rb2 Nf6 Rb4 Rg8 h8Q Ra2 h7 Na6 b8Q Ng4 b7 Qf6+ Kh5 g5 d8Q+ Qd6 Qd7 Nf2 Qbc7 g4 b8N g3 Qg1 Ke2 d4 Ra1 Be3 c1N Be7 Rg4 Ng5 Be4 Bd8 Ba8 d5 Ncd3 Qb1 Qe6 Rd1 Nb2 Rd3 Ra2 Qf4 Qf5 Kh6 Bd4 Qfd6 Nf4 Bb6 g2 Ba7 g1R Qg8 R4g2 h8R Bb6 Qgh7 Ne6 Re8 Qf7 Qg3 Qg6+
1Qb1B1nQ/2q2Qrn/3Qq3/5K2/4n1R1/2N1RRB1/nNrP2P1/2kbB1q1 w - - 0 1 illegal: No possible last move, all moves rejected
Q5Rr/2rR3N/5qN1/nR3BPK/5PQ1/r1B1kn2/4bqBq/1Rb3Qq w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 f4 c5 d6 e5 d7 h6 b6 b3 f6 b2 g6 c4 b7 c3 d5 c2 f7 Ra2 d6 Qf6 g7 Qe6+ Kh5 Qd5 d8Q Ra3 g4 Qc6 g5 Ne7 g8B Ng6 d7 Nh4 Nd2+ Ke3 Ngf3 b1Q Bg2 e4 Bb2 c1R Bc3 Qc2 Ne5 Qf6 Ng6 Nc6 b8R Ba6 Bh7 Na5 Qg4 Be2 Rab1 Bb4 f8R Qa2 Bb2 Rc7 Rb5 Bc3 Ba1 Bb2 Qa8 Bc1 d8Q Bd3 Qdd7 Qd6 Ne5 Nf5 Qdd8 Kf2 Bf1 e3 Rg8 e2 Ne4+ Ke3 Nf6 e1Q Kg6 h5 Bc3 h4 Kh5 h3 Rh2 Qb6 Rd2 h2 Rd1 Qg3 Bg2 Nh4 Rd2 h1Q Qa7 Qgh2 Qda8 Bf1 Rd7 Kf2 Nc6 Qe6 Ne7 Qbe3 Qd4 Be2 Qd1 Qf3 Qe1+ Ke3 Qg1+ Qf2 Rc8 Rf8 Bf5 Rg8 Nh7 Rh8 Ng6 Qf6 Rg8 Nf3+
1R1r2BB/NqRn4/1qNnPK1b/rP1k3B/2R5/2bb3Q/5Qr1/1rN4R w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 h4 g5 d4 c4 a6 g4 h6 c3 h7 c2 a7 f3 h5 f2 h6 f6 Bb2 c1R Na3 g3 Nc4+ Kc7 d6+ Kb7 d7 g2 Kf5 Qe7 e4 Kc7 d5 Qe8 e5 Rc2 Qe2 Qd8 Rc1 Bb7 Nd6 Nc6 Nc8 Nge7+ Ke6 Rd2 Rc4 f5 Ba1 Rg8 h8R f4 h7 f3 Rc2 Rb8 a8B Nf5 Rc1 Ra2 Na7 Kb6 d6 Ra5 Kf7 Qc8 d8N Rg5 Bc3 Kc5 d7 Qc7 Qe1 Qb6 Bc4 f1Q Ne2 g1B Rg8 f2 h8Q Rg4 Rg7 Qg2 Qh3 f1R Qeh4 Bd4 Qf2 Qf3 Rc2 Rfa1 Nc1 Rg2 Be2 Qe4 Bh5 Rb1 Rg4 Bh6 e6 Bde3 Bh8+ Kd6 Kg6 Ne5+ Kf6 Bd2 Rg7 Qd5 Rc4 Bc3 Bf7 Qf3 Bg8 Be4 Rh7 Bd3 Rf7 Qe2 Bf3 Qe4 Bh5 Qeb7 Ndc6 Kd5 d8R+ Nd6 Rc8 Ra8 Rcc7 Rf8 Rc8 Re8 Rb8 Rd8 Rc7 Nd7+
2QB1nBQ/R1KqRPP1/1n1n4/b1B2B2/q3N2b/6r1/1R6/kN1rbn1Q w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 d6 h5 d7 a5 g6 f3 f6 c4 g5 f2 d5 c3 g7 a4 d6 c2 b6 Kb3 f7 h4 b7 h3 g6 h2 Be2 f1N Ra2 a3 Bb5 Rh3 Bh6 Nf6 g8B Rg3 g7 Nd5 Be3 Nb6 Nh3 e6 Be2 Be7 Bd3 Bh4 Bc5 Ra4 Qf3 c1B Ng5 Bd2 Ne4 Rd4 Rg1 Be1 Qh1 Ba5 Rg2 Qe8 d8Q Qd7 Ra1 a2 Re2 Rg1 Qc8 Rg3 Ba6 Rd1 Bd3 Na6 b8Q Nc7 Qg1 h1N Re3 Qb5 d7 Nf2 Kd6 e5 d8B Ne6 Qh1 Nf8 Kc7 Qa4 Be2+ Kc2 b4 Kb2 b5 Qd4 Bg4 Qd3 Nf6 Ne4 Bf5 Nd6 Qba8 e4 Re1 e3 Ne4 Nbd7+ b6 e2 Qab8 Bc3 b7 Nb6 Qa8 Ba5 b8R Rc1 Rd1 e1B Rb7 Qb5 Rd5 Qd3 Re5 Rd1 Re7 Qd2 Ra7 Qd4 Nbc3 Qd5 Rc1 a1Q Nb1 Qaa2 Rc2+ Ka1 Rh2 Qa4 Rb2 Bg5 Qh8 Bh4 Qc6 Nb7 Qch6 Nd6 Qh5 Qd3 Qf3 Qdb5 Qh1 Qd7+
q1b1B1n1/1q2Bq2/1B2k1N1/2Rb1q1P/RN1Bq3/QR6/nPQ3Q1/1K1r2b1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 Nh6 c4 Ng8 cxd5 Bb7 Bc4 Ba6 Bf1 Bc8 g4 a5 Be2 h5 Bc4 Ra6 Bf1 Rah6 Ra4 gxh4 Ra1 h3 Nf3 h4 Ng1 Rh5 gxh5 Qd6 Ra3 Qd7 Ra1 Qd8 f4 Kd7 d4 e5 Kd2 c5 Kc2 c4 b6 a4 f6 a3 f7 e4 f5 a2 b7 e3 f6 c3 d6 e2 d5 e1Q Nf3 h2 Na3 h3 Be3 Nc6 b8R Na7 Nh4 Nc6 Ng6 Qh4 Bd4 Qg3 Bb5 Bg7 f8B Qc7 f7 Qf3 Be7 Qb7 f8Q Qf7 Re1 h1Q Re5 h2 Qd2 Qhf3 Qg2 h1B Kc1 Qb6 Nc2 Q3f5 Nb4 c2 Ba4 Qa6 Rb5 Qa8 Re3 Be5 Rb3 Qb7 Rc5 Bh2 Bb5 Bg1 Ba4 Qe4 Bb5 Qfe6 Qff2 Q6f5 Ba4 Ke8 d7+ Kf7 d6 Ke6 d8B Rh7 d7 Rh8 Na6 Nb4 Bb6 Qf7 d8Q Qff5 Rb1 a1Q Be8 Qa3 Ra1 Na2+ Kd2 Qa5+ Nb4 Qaa8 Qc7 Qf7 Qff3 Rh7 Qd3 Rg7 Qa6 Qef5 Qa3 c1Q+ Ke2 Qc3 Kd1 Qe3 Qch2 Qee5 Qc2 Bd5 Qhg2 Qee4 Kd2 Nc3 Kc1 Na2+ Kb1 Rh7 Qa5 Nc1 Ra4 Na2 Nc6 Rh8 Qb4 Rh6 Qa3 Rh7 Nb4 Rg7 Nh4 Rg3 Ng6 Rd3 Qh3 Rd2 Qg2 Rd1+
bNrb1QNq/n2R1B2/1R2P1R1/r1q2k2/qP6/q4B2/2qrKN2/B1Q3N1 w - - 0 1 illegal: No possible last move, all moves rejected
R1q1Rr1q/r1rb2PP/BN4kN/n1rRQ1N1/2B2n2/6Q1/Q4N2/1q4rK w - - 0 1 illegal: No possible last move, all moves rejected
3rQQBK/N1B1b2N/4nqb1/PRbR4/P2b3n/3k1b1b/5Q2/1N1B2Qb w - - 0 1 legal: proof: f4 g5 fxg5 b5 g6 a5 c4 d5 cxd5 f5 h4 f4 b4 Qd7 bxa5 Ra6 e4 Qd8 g4 Re6 g5 Re5 h5 Rf5 h6 Nxh6 exf5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 a4 h4 d6 f3 g7 b4 g6 b3 d3 b2 f6 f2 f7 h3 d7 h2 Qf3 Nc6+ Kf5 Kd4 Qg3 e5 Bh3 f1B Bg2 e4 Nh3 e3 Bf3 e2 Bf4 e1B Ng5 Bc3 Nh7 Be7 f8Q Ne5 Bd1 Nf6 g8Q c5 g7 Ng6 Bc7 c4 Qh4+ Ke3 d4 Bg2 d5 Nh5 d6 Kd3 Qf2 Bd4 Re1 h1B Re5 c3 Rd5 c2 Ke6 c1B Kf7 Bb7 Qe8 Qa8 d8Q Be3 d7 Nh4 Qgf8 Bh3 g8B Qa6 Qa8 Kc4 d8N Kd3 Nc6 Ng7 Na7 Bc6 Rb5 Bcf3 Qab8 Bdc5 Qb6 Bed4 Qg6+ Nhf5 Qgg1 Nh4 Nd2 b1B Ra2 Bc2 Nb1 Bcd6 Rd5 Bc5 Rb2 Ngf5 Qc8 Bb3 Qfg7 Bc2 Rb5 Kc4 Q7g6 Bce4 Qh6 Kd3 Qf6 Ng3 Kg7 Bg6 Be6 Qd6 Qd7 Rd8 Bg8 Nh5+ Kh8 Ng7 Qf8 Qf6 Qde8 Ne6+
2RQ1B1B/4K2N/2N1r1Q1/1N2R1n1/2Br2k1/qPBr3R/r1nb2P1/q2n3q w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 f5 f4 b5 axb5 Be6 h3 Bf7 e4 Bh5 exf5 Bg4 hxg4 gxf4 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 c5 Ke6 h5 d4 a5 f6 h4 f7 h3 d6 c4 b6 a4 b7 c3 d5 c2 d7 h2 b3 a3 d6 a2 Bb5 Rh4 Ba6 Nf6 Bc4 Nc6 b8N Nd4+ Ke5 Ne4 Bb2 c1R Nc3 f3 Nc6 f2 Nb5 f1N Qc2 Qa5 d8B Ne3 d7 Bh6 Qd3 Rc3 Re1 Ndc2 Ke6 a1Q Nf3+ Kf4 Bb6 Nd1 Ng5 Qb4 d8R Ra2 f8B Qa3 Nh7 Bg5 Kf7 e5 Ba5 Rh6 Qd4 Rd3 Rc8 Re6 Qd7 Red6 Qd8 Bh6 g5 Kg4 g6 Bd2 g7 Ng5+ Ke7 e4 g8Q e3 Be5 e2 Bac3 R3d4 Bh8 Rd3 Rhf1 h1Q Qg6 R3d4 Rf5 Rd3 Ref1 e1R+ Re5 Re4 Rf3 Red4 Rh3 Re6#
1kB2Br1/1q2R2r/1K2NQ1N/1n4B1/2P1b2n/1Q2P2R/q2R2qq/1nB1N1r1 w - - 0 1 legal: proof: d4 b5 h4 e5 g4 g5 a4 c5 axb5 cxd4 f4 f5 fxe5 Be7 gxf5 g4 Bf4 Bg5 hxg5 Bb7 Bc1 Bc8 Kd2 d5 Kd3 Kd7 b4 Kc7 c4 h5 e6 a5 f6 g3 e3 h4 g6 g2 e7 a4 e8R a3 f7 a2 f8B h3 g7 h2 Ne2 g1R Na3 Bb7 Qb3 Nh6 g8N Rh7 Bh3 Qc8 Nf4 Nf5 Nc2 Nc6 b6+ Kb8 b5 Nh4 Ne1 Na7 Nh6 Bc6 Rb1 a1Q b7 Qa2 Re7 Qg4 Rb2 Qf3 Kc2 d3+ Kc3 d4+ Kb4 d2 Kc5 d1N Ne6 d3 Rd2 Nc3 Kb6 Nb1 Qc3 Bd5 Qf6 Qf2 Nc5 Be4 Bc8 Rg6 Ne6 Qg2 Rf1 h1Q Rf3 Rg8 Rh3 Qhh2 Kc5 Rg3 Bd7 Qe2 Rc2 d2 Bg7 Rg1 Rb2 Nc6 Rc2 Ka7 b8B+ Kb7 b6 Ra4 Bf4 Qeg2 Bg5 Ra8 Rb2 Rah8 Bf8 Nd4 Bc8+ Ka8 Rc2 Rg8 b7+ Ka7 Bb2 Nc3 Ba3 d1Q Rd2 Qdb3 Bc1 Nb1 Bd7 Qbb2 b8Q+ Ka6 Qb5+ Ka7 Bc8+ Ka8 Qa4+ Kb8 Qc2 Qb7 Qd1 Nb5 Qb3 Qba8 Kb6 Qb7+
2rkbNN1/2r1rqR1/q1qbQ3/3P1K2/2P5/1bR3R1/B1nQ1Nr1/B1BB4 w - - 0 1 illegal: No possible last move
rbN2Bn1/R3QQ2/n1NP2r1/2RR1K2/1rn2rBr/6P1/5N1B/k1qr1B2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 f5 f4 b5 axb5 Be6 h3 Bf7 e4 Bh5 exf5 Bg4 hxg4 gxf4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 f6 e5 f7 c5 g5 a5 d6 h5 d7 f3 d5 a4 b6 f2 b7 c4 g6 h4 g7 c3 Qe2 Kb3 Bh6 h3 Kf5 h2 Na3 c2 Nh3 c1N Nb5 a3 Nd6 a2 Nc8 Qc7 d8R Bd6 f8Q e4 Qf7 Na6 b8N e3 Nc6 Nd3 Qe1 Kc2 b4 Kb2 b5 e2 b6 Ne5 b7 Nc4 b8B Bg3 Rc1 a1R Qb4+ Ka2 Qbe7 e1R Rg1 h1R Rc3 Ne5 Rc5 Rad1 Rd6 Re4 Rd7 Qa5 Ra7 Nc4 Bbf4 Ka1 d6 Qc3 Rd5 Qc1 Rc5 Bh4 Bh2 Rg4 g3 Rg6 Rg2 Bf6 Rd5 Bd4 Rg1 Bb6 Rc5 Bc7 Rg2 Nf6 g8B Bb8 Bf8 Rh4 Bh7 Ng8 Rg1 Rgh6 Bg6 Rhd4 Bh5 Rg6 Bg4 Re4 Bfe2 f1R+ Nf2 Rd3 Rg2 Rb3 Rg1 Rd1 Re1 Rb5 Bf1 Rb4 Re3 Red4 Ree5 Re4 Red5 Red4 Bg1 Rh4 Bh2 Rf4+
3B3n/bb2R3/3K1rNN/b1QQn3/N1Qn1n1b/4R1Bq/2P2RP1/5bNk w - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 Kf7 exf5 c4 f6 g6 f5 c3 dxc3 Bh6 c4 Kf8 f7 Kg7 c5 Kf6 Be3 Bg7 Bc1 Bf8 h4 a5 Bd3 Ke5 f6 Ke6 Bf5+ gxf5 Qd3 Ra6 Qd2 Rd6 Qd1 Rd3 Ke2 Rg3 Ke1 Rg5 hxg5 Ba6 Be3 Bb7 Bc1 Bc8 Kd2 Ke5 Kd3 h5 Kc4 d5+ Kc3 h4 b4 a4 g6 d4+ Kc4 a3 g7 a2 b6 f4 c6 h3 Kc5 f3 b5 f2 b7 f1B b6 h2 c7 d3 Bg5 d2 Qf3 d1N Qg4 Ne3 Qd7 Nd5 Qb5 Nf4 Bh6 Nc6 b8Q Qd7 b7 Qh3 Qa5 Nd4 Bg5 Nh6 g8N Ke4 Qb5 e5+ Ne7 Ke3 Qc4 Kf2 Nc3 e4 Na4 e3 Kd6 e2 Qa8 e1B b8B Ba5 Qad5 Bb7 Re1 a1B c8Q Rg8 Q8c6 Rg6 Re3 B1c3 Qc7 Be1 Q7c5 Bg7 f8N Bh8 Nf5 Nf7+ Kd7 Bg7 Re7 Nh8 f7 Rf6 Ng6 Bf8 Re3 Be7 f8R Bb6 Qa5 Ba7 Qac5 Ba5 Re8 Bed8 R8e6 Be7 Nh6 Bed8 Nf3 Kg3 Kd6 Kf2 Rg1 h1N Bc7 Kg3 Bb8 Nf2 Bc7 Rf7 Re7 Ng4 Rh1 Kf2 Ng1 Ne5 Bf6 Qf3 Rh5 Qh3 Rf5 Rf8 Re1 Kg3 Re3+ Kh2 Bh4 Kh1 Bg3 Nh5 Rf2 Nf4 Re6 Bf6 Re7 Bh4 Bd8 Rf6+
1N1b1Q2/nk6/N1q1N1r1/2B1brRR/7R/1Prr1N2/4Prq1/1QKB2rB w - - 0 1 illegal: No possible last move, all moves rejected
1B2k1qn/6n1/R1n1N2P/2RB1N2/Rr2nN2/b1Q3P1/1NK5/QrnrQ2r w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 Nc3 h5 Nb1 g5 Ra2 g4 Ra1 g3 hxg3 Bg7 Nf3 Bh6 Ng1 Bf8 Nf3 h4 Ng1 h3 Kf2 h2 Ke1 Bh3 gxh3 Qd7 Ra2 Qc8 Ra1 Qd8 d4 f5 Kd2 c5 e4 a5 b4 f3 d6 f4 d5 f2 e5 a4 h4 a3 d7+ Ke7 h5 c4 h6 a2 d6+ Kf7 b6 c3+ Kc2 f3 e6+ Kf6 b7 Na6 b8R Qc8 d8Q+ Ne7 d7 Rh7 b5 Nc7 b6 Ra5 b7 Na6 Ra8 Rb5 b8N Qc4 Nh3 Rb4 Qa5 Ng6 d8N Ke7 Na3 Ke8 e7 Qg8 Nbc6 Nb8 Nc4 Nh8 Bg2 f1N Nb2 f2 Ra6 Nd2 Bd5 f1N Ne6 Ne4 Ncd4 Nc6 Bf4 Rg7 Rg1 h1R Bb8 Rg5 Rc1 a1R Nhf4 Rb1 Nf5 Rg6 Qe1 Rf6 Qa1 Ne3+ Kd3 c2 Qc3 Nc4 Rg2 Ncd6 Rh2 Rg6 Rh5 Rg4 Rf1 c1N+ Kc2 Rgh4 Rd1 Rg1 Rd4 Rd1 Rc4 Rhh1 Rc5 Kf7 Rca5 Ne8 Ra4 Ng7 Rg5 Ne5 e8Q+ Kf6 Qec8 Kf7 Qe1 Nc6 Qc7+ Ke8 Qa5 Rb7 Qac3 Rb4 Bb3 Rh5 Nh4 Rb6 Ba2 Ba3 Rc5 Rb3 Nf5 Rb4 Bd5 Rh1
K1R4n/1Q4Q1/qrP3qB/3k2q1/3q3R/4qRNB/rQbP1RqN/B5b1 w - - 0 1 illegal: No possible last move, all moves rejected
2nN1nN1/RPKQ2bB/Rn2B3/nR1Pq3/r1k2n2/1q4B1/1q1q2N1/1Q2B3 w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qb3 a5 Qc2 Bf5 gxf5 g4 Qb3 g3 Qd1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qd7 Qa4 Qc8 Qd1 Qd8 d4 Kf7 Kd2 c5 Kc3 h5 Kc4 a4 e4 f2 b4 g2 g5 h4 g6+ Kf6 e5+ Ke7 g7 a3 d6+ Kf7 Kd5 h3 d7 f3 b6 a2 b7 c4 b5 h2 f6 c3 b6 c2 e6+ Kg6 e7 Kf7 Kd6 Rh4 Bf4 c1N Nd2 Nb3 Ne4 Na5 Bd3 f1N Ne2 g1N Bg3 f2 Qb1 Ne3 Nf4 f1Q Ng2 Qf3 Be1 Qe8 Kc7 Ke6 d8N+ Kd5 f7 Nd7 b8B Nec4 b7 Ncb6 Bc2 Qe3 Nf6+ Kc4 d5 Qd2 Bh7 Nh3 Rf1 h1Q Rf2 Nh6 g8B Bg7 f8R Nf4 Be6 Nf5 Ng8 Qh3 Rf6 Qb3 Rh6 Qh5 e8Q Nf8 Qd7 Ne7 Rf3 Nec8 Rd3 Qbb2 Rb3 Qf3 Rb5 Qfb3 Bh3 Na4 Ra6 Nab6 Be6 Nh5 Ne7 Kd4 Bg6 Nac4 Ra4 Qb2c3 Kc6 Qce3 Bf4 Qe5 Bfg3 Re4 Ra7 Nf4 Ng8 Kc3 Bh7 Kd4 Qb2+ Kd3 Rb1 a1Q Rd1 Qaa2 Ra1 Qb1 Qa2 Q1b2 Qb1+ Kc3 R1a6 Kd4 Qd6 Na5+ Kc7 Kc3 Qa1 Ra4 Qb1 Qg5 Qe7 Kc4 Qd7 Qge5+
1k2q1BQ/4r3/rq2R1RN/P1Q1r3/2NB1n2/nrN3r1/1QP3rr/2Q3RK w - - 0 1 illegal: No possible last move, all moves rejected
qN1RQ1Q1/2KR2n1/6bn/2b2b1Q/2q1R3/4bBbR/nPkPN3/n1B2B2 w - - 0 1 illegal: No proof kernel
r3B2Q/1N1Q1Pqq/N1R1R3/3Q3r/5BB1/2b3b1/1q2bPK1/kqb1RBb1 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 h4 f5 exf5 b5 axb5 Na6 g3 Nc5 g4 Nh6 f6 Nf5 gxf5 g4 Qf3 Ne4 Qd1 Ng5 hxg5 Bb7 Bg2 Ba6 Bf1 Bc8 c4 Kf7 b4 a5 c5 h5 c6 d5 b6 e5 c7 a4 b5 h4 b7 d3 b8R e4 b6 g3 b7 g2 Nh3 g1B Rh2 d2+ Ke2 d4 Na3 d3+ Ke3 Rh5 Nc2 a3 Nb4 a2 Nf4 h3 Ne6 Qd7 Nc5 Bd6 Nba6 Bg3 Qa4 Qe7 Qd7 d1Q Rg2 h2 g6+ Kf8 g7+ Kf7 Bd2 Qc2 Re1 a1B Bc1 h1Q g8B+ Kf8 f7 Kg7 Bd2 Kf6 f8Q+ Ke5 f6 Bc3 Qfd8 Qg7 Bf7 Qb2 Be8 Qh4 Bc1 d2 f7 d1Q Bd2 Qdc1 Ke2 e3 Kf3 e2 Rh2 Qhg5 Kg2 Q5h6 Rh4 Qhh7 Rc4 Qcb1 Bg5 Ra7 Ra8 Bd2 b8Q Bc1 Qb3 Bb7+ Qf3 Bc6 Nb7 Bb5 Rc6 Bc4 Rb8 Ra8 c8B Bd3 Qff6+ Ke4 Bf4 Bb5 Nd6+ Kd3 Rbb6 Bc4 Qfe6 Kc2 Qd5 Kc3 Nb7 Kc2 Rd1 e1B Qh4 Bed2 Re1 Bc3 Rce6 Be2 Rbc6 Q2a2 Qf6 Kb2 Qfd8 Ka1 Qf6 Qgg8 Qh8 Qgg7 Re5 Bb5 Qe7 Bb4 Bg4 Qab2 Qed7 Be2 Ree6 Bc3
2nBRq1N/Q2r3B/qNK1qPPR/Q3q3/1R2Nk2/2B2Bnn/r7/1n1r4 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 g5 axb5 d5 cxd5 Nd7 h4 gxh4 e5 Nb8 f3 Ba6 b6 Bd3 Ra2 Bg7 Ra5 Be4 Ra3 Bf6 exf6 e5 Ra5 Bd3 Ra1 e4 Be2 e3 Bf1 Be4 fxe4 Kf8 Na3 Kf7 Nb1 Ke8 Ke2 Kf7 Kd3 Kg6 Kc4 Kg5 Kc5 a5 b4 h5 g4 h3 d4 a4 b5 c6 d6 f4 d7 h2 b7 f3 b6 f2 d5 a3 d6 h4 e5 a2 e6 h3 e7 Ra3 e8B Kf4 g5 Ne7 Qh5 Nd5 Bd2 Nc3 Bg6 Qf8 d8N Rh7 Bg2 f1Q Nf3 Qa6 Ne5 Rd7 Ndf7 Ra4 Be1 e2 Nd2 Nb1 Ne4 Ra3 Ba5 e1Q Nc4 Qe2 Re1 h1N Bc3 h2 Bh7 Nf2 g6 h1N Bf3 Ng3 Nh8 Nh3 Rh1 Nd2 Raf1 a1Q Rb1 Ra2 Rb4 Nb1 Qd5 Ng1 Rh6 Nh3 Nf2 Qe6 Ne4 Re7 d7 Qb2 d8B Nd7+ Kd4 Qh2 b8R c5+ Kd3 Rg7 b7 Nb6 Rc8 Rd7 b8Q+ Rc7 Qa7 Rd7 Rb8 Nc8 Ra8 Qb7 Nb6 c4+ Kd4 Qa6 Nd6 Qhe2 Kc5 Q2e4 Kc6 Q4e5 Bd4 c3 Qa5 c2 Bc3+ Qd4 Rb8 c1R Ra8 Rd1 Rb8 Qef7 Ne4 Qe5 Bc7 Nd6 Re8 Qfe6 Bd8 Nc8+
3Rn3/BQ2N2q/2Q1bR2/R1Kb4/1Q3bPB/N4r1q/2nq1pP1/1rk1B1R1 w - - 0 1 legal: proof: f4 d5 a4 g5 c4 b5 axb5 e5 cxd5 Bg4 fxe5 Bf5 h3 Bc8 b4 g4 hxg4 a6 e3 Bf5 b6 Nh6 b7 Bd7 b5 Bc8 b6 Ng8 Bb5+ axb5 Kf2 Kd7 d4 c5 d6 Ke6 d7 Kd5 e6 Kc4 e7 h5 e8Q f5 e4 f4 e5 b4 e6 b3 e7 b2 d5 f3 Ke3 h4 d6 f2 Qd2 Kb3 Rh3 c4 Kd4+ c3 Nf3 c2 Qe1 Bh6 Ra5 Nf6 Na3 b1B Bd2 Kb2 Ne5 c1Q Rh1 h3 Nc6 h2 Rg1 Na6 b8Q h1Q b7 Qc7 d8B Bf4 d7 Be4 Qg6 Ra7 e8R Nb4 Rf8 Ne8 Rf6 Rh3 Ne7 Bd5 Qee4 Re3 Be1 Qh3 Qa8 Q7c2 b8B Rb7 Ba7 Rf3 Qg7 Rb6 Qc6 Q1b1 Qgh7 Qd2+ Kc5 Nc2 Qb4+ Kc1 Qhe4 Qb3 Qb7 Qbd3 Qe6 Qdh7 Qec6 Be4 Bc7 Bd5 d8R Bce6 Be5 Bg5 Bg3 Bh6 Bh4 Bf4 Qba4 Rbb3 Qab4 Rb1
2b2QQ1/5N2/4P3/rQ1KB1rn/q3BP2/1bR2p1N/n4BNk/qRbn3N w - - 0 1 legal: proof: c4 b5 f4 e5 h4 d5 cxd5 f5 a4 g5 axb5 gxh4 e3 Qf6 fxe5 f4 Ra6 f3 Ra1 Qf4 exf4 Bh3 Qb3 Be6 Qd1 Bc8 Kf2 Kf7 Ke3 Kg6 Kd4 Kh5 g4+ Kh6 b4 a5 d6 c5+ Kd5 a4 d4 h3 e6 a3 d7 c4 d8Q c3 b6 h2 b5 a2 g5+ Kh5 b7 Kg4 b6 Kg3 g6 h5 g7 c2 Na3 h4 Bd3 h3 Qe2 Bd7 Be4 Bd6 Qf8 Nc6 b8N Ra5+ Qb5 Bc8 Be3 c1Q b7 Qd1 Nc4 Qa4 Rc1 a1Q Rc3 Ba3 Nd7 Rh5+ Nde5 Rg5 b8B Bc1 Bf2+ Kg2 Kc5 Nb4 d5 Nf6 g8Q Nh5 d6 Na2 d7 Ba3+ Kd5 Bc1 Bfa7 Kg3 d8N Kg2 Nf7 Kg3 Ne2+ Kg2 Rd1 h1N Ng3 Nf2 Nh1 h2 Ne3+ Kh3 Rf1 Nd1 Ng2 Bb2 Bf2 Bc1 Ng3 h1B Re1 Kh2 Rg1 Rg7 Nd3 Rg4 Be5 Rg5 Nge1 Bg2 Nh1 Bh3 Ng2 Bf5 Re1 Ba3 Rf1 Nb2 Rb1 Nd1 Bh4 Bg6 Ndf2 Bc1 Nh3 Bh7 Bf2 Bf5 Kc5 Bh7 Bc6 Bd3 Be4 Bc2 Kd5 Bb3+
B1N1R3/rRB4n/1b1PQP1q/r1Q3BR/1RK5/q4bkp/Q3b3/3N1rn1 w - - 0 1 illegal: No possible last move
Q1qRBR1K/B1q2b2/1p1rnQ2/3P2b1/1nqP1R2/1Nk3B1/3N3N/r4Nb1 w - - 0 1 legal: proof: c4 d5 cxd5 Bg4 e4 Bh3 b4 Bf5 b5 Bc8 b6 axb6 a4 f5 exf5 Na6 a5 Nb8 g4 h5 gxh5 Qd7 a6 Qd6 axb7 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 g5 f4 c5 d4 e6 h6 g4 h7 g3 f6 g2 f5 c4 h5 c3 f7 c2 h6 Bc5 f8R Qe7 f6 Ra6 f7 Qe8 Ne2 g1B Nd2 Qc6 Ng3 Qa4 Bb5 Bh2 Qf1 Bd7 Qf6 Be8 Rf1 Bg1 Rf4 Ra5 Ngf1 Na6 b8B Nc7 Ba7 Ne7 Ra3 Rg8 h8Q Rg6 h7 Ra6 Ra2 Kc3 Qg8 Qb4 h8N Qc4 Ra4 Rh6 Ng6 Ba3 Nh4 Nc6+ Ke4 e5 Kf5 e4 Nhf3 e3 N3h2 e2 Ra5 Rh5+ Kg6 e1Q Kg7 Qe6 Ba4 Re5 Kh8 Be7 Ba3 c1Q Bd6 Nb4 Rc5 Na8 Rc8 Nc7 Rd8 Qc8 Bb5 Ra1 Bc6 Bd7 Bb5 Bg4 Be8 Re6 Qh7 Bh3 Rh4 Qb8 Qf2 Rg6 Rg8 Bg5 f8N Qa6 Nd7 Kd3 Rf8 Qac8 Bg3 Qc4 Nc5+ Kc3 Ncb3 Rd6 Qf6 Be6 Rf4 Bg8 Qhf7 Ne6 Qb7 Qbc7 Qa8 Bf7
bN2r3/1RP5/N1RBn2q/3kBQQB/5r2/1K2Bp1b/2b1PN2/q3nqQ1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Bd6 Nh3 Bc7 Ng1 Ba5 bxa5 Ra6 Qd2 Ra7 Qd1 Ra8 Kd2 Ke7 h4 Ke6 c4 d5 Kc2 g5 a6 f5 a7 f4 b6 a3 b7 a2 c5 f3 h6 g4 c6 g3 h7 g2 h5 d3+ Kb3 d4 h6 d2 c7 d3 Nh3 g1Q Nf2 Bd7 Bh3+ Kd5 e6 Qe1 e7 Kd6 e8Q Qc8 Qe4 Qf1 Bg4 Na6 b8N Qf8 Bh5 Nf6 Na3 Nd5 Nc2 Bh3 Nb4 Ne3 Qf5 Nc2 Rb1 a1Q Qg5 Rg8 h8B Ne1 h7 Qh6 Be5+ Ke6 h8B Rf8 Qc2 d1B Bd6 Rf4 Be3 d2 Rg1 Qh7 Bhe5 Qh6 Nd7 Re8 a8Q Re4 Qa7 Rf4 Nc6 Kd5 Nc5 Nb4 Nb8 Nc6 Rg4 Nd8 Nca6 Ne6 Rb2 Rf7 Rc4 Rf5 Kb4 Rf4 Qcf5 Bc2 Rb1 Be4 Rc6 d1B Rb2 Ba4 Kc3 Qd1 Rb7 Bac2 Qb6 Qa1+ Kb4 Bcd3 Kb3 Rh4 Rc1 Nf4 B3d4 Ne6 Nh1 Bg2 Ra7 Bb5 Bf2 Bc6 Qbe3 Ba8 Rc6 Nd8 Rb7 Bh3 Qg1 Bd3 Qeg5 Rf4 Be3 Ne6 Nf2 Bc2+
BBR1Rr2/nqP1b3/q5kr/2QrP3/3N1nB1/1R6/K1pRnQN1/1N2b3 w - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 b5 a4 d5 axb5 e5 b3 d4 c3 Be6 cxd4 Bc4 d5 exf4 Qc2 Bd3 Qd1 c4 Nf3 c3 Ng1 Bc4 bxc4 Qb6 Ba3 Qc7 Bc1 Qd8 d4 h5 e4 f5 g4 Kf7 c5 a5 g6+ Kg7 c6 f3 g5 c2 Kd2 f2 Kc3 h4 Kb2 a4 d6 f4 d5 h3 d7 f3 d6 a3+ Ka2 h2 b6 Rh7 b7 Rh8 Ne2 Qa5 d8R Nf6 d7 Qe5 Qe1 Rg8 Nd4 Bd6 Be2 f1Q Bf4 f2 Rc8 Rd8 Bg4 Re8 d8N Qeb5 N8e6+ Kh8 g7+ Kh7 g8R Rd8 Re8 Be7 Qe2 Qg2 Rd1 f1N Qf2 h1R Rd2 Kg6 Bc7 Qd3 e5 Qa6 Bd6 Ng3 Nf4+ Kf7 Bc7 Rd5 g6+ Kg7 Bd6 Rh6 Bc7 Qe4 Ng2 Nfh5 Bd6 Nf4 Bc7 Nd7 b8Q Nge2 Qa7 Nb6 Bb8 Qf3 c7 Qe4 Rcd8 Nc8 Qc5 Na7 Rc8 Qf3 Nc3 Qe4 Rb1 Qf3 Rb3 Qe4 Ka1 a2 Nb1 Qf3 Kb2 Qe4 Na3 a1B+ Ka2 Qd6 Nb1 Bc3 Rd1 Be1 Rdd3 Rh2 Rd2 Kh6 g7 Kg6 g8B Rh6 B8e6 Qc6 Bf3 Qb7 Bd7 Qd3 Bdg4 Qda6+ Kb2 Nb5 Rf8 Rh4 Ba7 Rd7 Rcd8 Rh6 Bd5 Rc8 Bb8 Qbb6 Ba8 Rd5 Rh8 Qab7 Ka2 Qf6 Rd7 Rg8 Rd8 Na7 Rc8 Qfa6+ Qa5 Rg7 Rhe8 Rf7 Qa3 Rf8 Qa5 Qab6 Qc5 Q6a6+
2N2nQ1/KPR4Q/5qrQ/1b1bp1B1/P3kBN1/7R/NR2nq2/nr3R1b w - - 0 1 legal: proof: c4 b5 b4 h5 g4 f5 gxh5 c5 d4 e6 e4 a6 exf5 Bd6 cxb5 Bc7 b6 Qg5 b5 Bd6 b7 Qd8 b6 Bf8 Bb5 axb5 Qa4 c4 Qd1 Bc5 dxc5 Rh7 Ke2 Rh6 Ke1 Rh8 Kd2 Kf7 Ke3 Kf6 Kd4 d5 f4 g5 h4 g4 a4 b4 h6 b3 c6 b2 Kc5 g3 h5 d4 h7 d3 c7 e5 h6 c3 Qb3 g2 Rh3 d2 Nf3 g1N Nh2 d1B Ng4+ Ke7 f6+ Kd7 f5 c2 f7 Na6+ Kb5 Kd6 f8Q+ Ne7 b8R Bf3 f6 Nc5 f7 Bd5 Nc3 b1B Bg5 c1Q Na2 Rg8 h8Q Qf4 h7 Ne2 Qh6+ Rg6 f8B Bbe4 Rf1 Bh1 b7 Qf2 Kb6 Bd7 Rc8 Bb5 Qg8 Ra7 h8R Ra5 Qgh7 Ke6 Bg7 Kf5+ B7f6 Ke4 Bf4 Qf8 Rg8 Qg7 Rgd8 Qf8 Rd6 Qh8 B6g5 Qf6 Rc6 Ra7 Rg8 Ra5 c8N Ra6+ Kc7 Rb6 Kb8 Qe3 Rc7 Qf2 Qg3 Nb3 Ka7 Na1 Qg1 Nf5 Rgg7 Nfd4 Rc2 Ne6 Rgc7 Nf8 Rb2 Bd7 Qg3 Bb5 Qb3 Bdc6 Qbg8 Bd5 Bd2 Rc6+ Bde3 Rc1 Bf4 Rb1 Bg5 Nd4 Bef4 Ne2+
4Q2R/P4qn1/k2B1N1q/1rPn1R2/pQbb4/r1N3K1/rBn2NN1/5BQ1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 a4 Rh7 axb5 a4 Bg5 Qa5 bxa5 Rh6 Bc1 Rh8 c4 Kd8 f4 Kc7 Kf2 Kb7 h4 e5 b6 d5 h6 g5 f6 g4 f7 e4 h7 g3+ Kg2 d3 f5 d4 h5 d2 c5 e3 h6 e2 f6 d3 Nc3 Be6 Rb1 Na6 Nh3 Bg7 f8B Rb8 f7 Nb4 Bd6 Ne7 f8N Bc4 Nf2 Nf5 Bb2 Nd5 Nd7 Bd4 Nf6 Ka6 b7 e1N+ Kh3 Rhe8 h8N g2 h7 g1R Ng6 Ng7 h8Q Rg2 Nh4 Nc2 Rh2 Re4 Qe8 Rf4 Qc1 d1Q Rh1 Rh2+ Kg3 d2 Ng2 Qh5 Ra1 d1Q Qb1 Rd8 b8Q Qd2 Qb4 Rb8 Qd1 Rb5 Qde1 Ka7 a6 Qf7 Rd1 Qc1 Rd3 Rfh4 Rf3 Qh6 Rf5 Rh5 Bd3 R5h4 Qg1 Re4 Bf1 Re1 Qc8 Ra1 Qe8 Ra3 Qe6 Ka8 a7 Kb7 Qe7+ Ka6 Qe8 Rh4 Rh3 Re4 Rh4 Re1 Rh1 Rea1 Rh2 R1a2 Rh1 Qc1 Rh8 Qh6
q1bn1Br1/Pr2r2p/1N5P/1Q5b/qb1Q4/NkBQ2R1/n1RQR1K1/4B3 w - - 0 1 legal: proof: d4 b5 e4 e5 dxe5 a5 b4 Ba6 bxa5 Bd6 c4 Bc8 cxb5 Bf8 f4 Ke7 e6 g6 e5 Ra7 f5 Ra8 Bd3 Nc6 exf7 Nb8 f6+ Ke6 Bf5+ gxf5 Kf2 c5 h4 d5 a4 c4 g4 f4 h5 c3 h6 d4 g5 Kd5 a6 Kc4 b6 f3 e6 d3 a7 d2 a5 c2 a6 Nd7 b7 Bb4 b8B Bc3 f8B Nc5 g6 Ne7 f7 Rg8 g7 Nb7 Nh3 Qd6 Nf4 Qd3 Na3+ Kb4 Be5 Nd6 Rh2 Ne8 Ra2 Qe4 Nd5+ Ka4 Nb6+ Kb3 Qe2 d1R Qd2 Rb8 a8Q Rb7 a7 Nd5 e7 Nd6 e8Q Nb4 Qb5 Re1 Qb8 Qc6 Qbd3 Qa4 Kg3 f2 Kg2 Re2 Bb2 c1Q Bg3 Qd1 Ba1 Qe1 Rc2 Na2 Qd4 Bb4 Bc3 Ree7 Bh4 Rh8 g8R Qd1 Rg3 f1B+ Kh1 Qe8 Re2 Rg8 Kg1 Bfh3+ Kh2 Bhg4 Kg2 Bh5 Q4d3 Nf5 Qbd6 Qa1 Q6d4 Ng7 Qb5 Nc1 Q4d3 Rec7 Rg5 Bg6 Nb1 Bd7 Be1 Qa4 Bd6 Na2 f8Q Ne6 Na3 Bh5 Qff4 Qa8 Qfd4 Bc8 Rg3 Nd8 Bf8 Re7
Q4BQ1/R2K2b1/4Bk2/2N4R/3nB3/1Rnnnn1b/N1PQ1pP1/qr1r2Q1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 c5 fxe5 b4 d4 cxd4 a3 Qf6 axb4 Qb6 b5 Qd8 Kf2 Ke7 Kg3 d5 Kf4 h5 e4 f5 b6 d3 a6 h4 e6 d4 Ke5 d2 g6 d3 a7 f4 g7 h3 b7 h2 Nc3 f3 Ba3+ Ke8 e7 Kf7 Na2 f2 Nf3 Qa5+ Kd6 Nd7 b8R Nc5 e5 Nf6 Rb3 Nfd7 e6+ Kf6 g8Q Bg7 e8Q Rb8 a8Q Ne5 e7 Bh3 Ne1 Nf3 Qd7 Qa4 Qc1 d1N e8B d2 Bf7 Nd3 Be6 Ne3 Kc7 d1N Bf8 Qa3 Qdd5 Nc3 Kd7 Rh5 Qd6 Rd5 Qb1 Nb2 Bd3 Qa6 Bg6 Rd1 Qd2 Nd3 Be4 Qa3 Nb4 Qb2 Ra7 Qa1 Na2 Rb4 Rf1 h1N Rg1 Nf4 Nd3 Ng3 Nc5 Nd3 Rh1 Ngf5 Qbc1 N5d4 Qb1 Bg4 Rh5 Bh3 Qbc1 Rh1 Qg1 Rb6 Qh2 Rd1 Qg1 Rb4 Rba3 Rb2 Rb3 Rbb1
2b5/1N1R3b/1NQr1NnB/QrR4b/1QP5/rp1R3K/r1qPk1B1/3n3R w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 a5 b4 c6 exd5 axb4 dxc6 e4 Ne2 Bd6 Ng1 Be5 fxe5 Qf6 Ba3 Qd6 Bc1 Qd8 Kf2 Ke7 Kg3 Ke6 a4 Kd5 c4+ Kd4 h4 b5 c7 g5 e6 f5 a5 e3 h6 b3 e7 b2 e8N e2 h5 Kd3 h7 g4 a6 b4 h6 b3 a7 Qf6 Na3 b1B Nf3 Na6 Nb5 Nb4 Bb2 Ne7 Nbd6 Nbd5 Nb7 Qg6 Nf6 Rd8 h8Q Rd6 h7 Ne3 Bg2 e1R Qf8 f4+ Kh2 Qe4 h8R Ng6 Rh3 Qf5 Qc1 Nd1 Qc3+ Ke2 Qa5 Qc2 Ne5 f3 Ned7 f2 Nb6 f1B Rd3 Rb8 Bd4 Ra8 Be3 g3+ Kg1 Rb8 Rh7 Ra8 Rd7 Rb8 Bh6 Ra8 Bc6 g2 Kh2 g1R Bg2 Rh1+ Kg3 Rh5 Kg4 Rb5 Kh3 Kf2 Qe7 Be2 Qf8 Bh5 Qe7 Rb8 a8Q Ree5 Q8a6 Ra8 Qf8 Ke2 Qe7 Rb4 Q6b5 Ra4 Qc6 Ra2 Qf8 Rde6 Qfb4 Rb5 Re7 Bd7 c8R Ra6 Rc7 Bc8 Red7 Rd6 Qd5 Ra3 Rc5 Ba2 Rc1 Bb1 Qc6 Ra8 Qc3 Ra2 Qab4 R8a3 Qa1 Nb2 Rh1 Nd1 Qac3 Ne7 Qa5 Ng6 Qcb4 Qc1 Nd8 Ne7 Rg3 Bh7 Nb7 Qc2 Rd3 Ng6
B1R3bk/b3B2b/Q2K3n/r3RPNR/br1qr3/3n4/1Q2pNBP/5BN1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Kd2 Kf7 Kd3 g5 Kc4 Kg7 Kc5 d5 f4 g4 c4 g3 h6+ Kh7 f6 g2 b6 d3 a6 d2 a7 d4 b7 d3 f7 Qe8 f5 Qd8 Qa4 d1B Nc3 d2 Qa6 Be6 Ra5 Bb3 Nd1 Nc6 b8Q Nb4 Nf2 d1B Bg5 Nd3+ Kc6 Bdc2 Re5 Qd4 c5 Bbd5+ Kc7 Ba4 Qb2 Rb8 a8B Rb4 c6 Bdb3 Ne2 g1R Bf6 Rg4 Ng1 Bg7 f8R Rf4 Rc8 Re4 Bh4 Bec4 Bg2 e6 Be7 Bd5 Kd6 Bdc4+ Rd5 e5 c7 Bf6 Bf1 Bg5 Bg2 Be3 Bf1 Nf6 Bg2 Ng4 Bf1 Re8 Bg2 Kh8 h7 Nh6 Bf1 Kg7 h8N Rg8 Nf7 Rf8 Ng5 Kh8 Rb8 Ba2 c8B Rf7 Bf8 Ra7 Bcb7 B2b3 Rc8 Ba2 Qb6 Ra5 Qa6 Bcb3 Ke7 Bc4 Rdd8 Bd5 Kd6 Bg8+ Bd5 Bh7 Rd7 Qc4 Bdc6 Qc3 Be7+ Bag8 Rdd8 Ba7 Re8 Rf4 Bcg2 e4 Rf8 e3 Rf6 Ng4 Rh6 Rfe4 Rh5 Qd4+ Kc7 Bb3 N1h3 Ra2 Be2 Re5 Re1 Nh6 Bef1 Raa5 Ng1 Ba4 Re2 Qh4 Kd6 Qg4 Rec2 e2 R2c5 Qc4 Rb5 Qc3 Rd5 Ree4 Re5 Qd4+
3RR1b1/R2n1q1n/NrQ2RN1/PN1p2r1/3Bb3/4Q1b1/PB2b3/rk2BK2 w - - 0 1 legal: proof: e4 h5 d4 a5 g4 f5 exf5 c5 gxh5 e6 dxc5 a4 Bc4 a3 Bd5 exd5 bxa3 Qb6 a4 Qc7 a5 Qd8 h4 Kf7 c4 Kf6 f4 g5 c6 b5 c7 g4 h6 d4 c5 d5 h5 g3 c6 g2 h7 d3 h6 b4 Ne2 b3 Nbc3 b2 Na4 b1B Nec3 Be6 c8R Bb4 c7 Bf8 Qf3 Qd6 Nb5 Ra6 Qe3 Qb4+ Bd2 Qb3 Nc5 Bd7 Rd8 Rd6 c8Q Rb6 Na6 Bd6 Qc6 g1R+ Kf2 Rc1 Be1 d2 Kf1 d1B Rg1 Bf3 Rg7 Be6 Ra7 Bbe4 Rb1 Qa3 Rb2 Bg4 Re2 Ra1 Rf2 Nd7 Re2 Kf7 f6 Kg6 f7 Kf5 f8N Ngf6 Ng6 Rg8 h8B Nh7 Bd4 Be5 Rf2 Qf8 Rf3 Qf7 Bb2 Ng5 h7 Rg7 h8B Nh7 Rh3 Bd6 Rh6 Rg8 Bhd4 Bgf3 Nf8 Rg5 Ng6 Be2+ Kf2 Kg4 f5 Bb8 f6 Kf5 Re8 Bg3+ Kg1 Qf8 Rd8 Bg8 f7 Qe7 f8R+ Qf7 Qd2 B4d3 Kg2 Ke4 Qdc1 Bb1 Rfe8+ Kd3 Kg1 Nc5 Qe3+ Kc2 Qf6 Nd7 Qc6+ Kd1 Ne5 Be4 Rf6 Bh1 Ng6 Be4 Qd6 Kc2 Qe6 Bh5 Kf1 Kb1 Qc6 Be2+
n1Br4/1q1B1B2/N3QQRP/R3rr1K/2n2Bn1/b7/pPk3bN/nR5Q w - - 0 1 illegal: No possible last move
1Q1Q3R/5N2/BBPqn2r/1R2Q2b/Nbb3R1/p2n2Bn/4Pr2/3QK1bk w - - 0 1 illegal: No possible last move
Q3QK1b/4pn2/rbNr1qBR/rRb5/B3b1Q1/2k4P/3nP1N1/NB4B1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 f4 h5 c4 b5 a4 d5 cxd5 Nc6 axb5 Nb8 g4 hxg4 fxg5 Ba6 Ra4 Bb7 Ra1 Bc8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 c5 a6 f5 b6 g3 a7 c4 g6 f4 d6 c3 g7 g2 b7 f3 d5 f2 d7 c2 Ke6 Rh6+ Kf7 Na6 b8Q+ Bb7 d6 Qc8 d8Q Nc7 d7 Kc4 Na3+ Kc3 Be3 c1B Nh3 g1B Bg2 f1R+ Nf4 Re6 Rb1 Ne8 Be4 Rh6 Bg6 Bb2 Nc2 Qc6 Qd4+ Kb3 Na1+ Ka2 Qbc8 Nef6 Qe8 Ba3 d8N Bc5 Ng2 Rd1 Qdg4 Rd6 Rb5 Ne4 Bf2 Qa6 Nc6 Nd2 Qcd8 Bc8 Be3 Bf5 Qc8 Be4 Qcd8 Nf6 g8B Bg7 B8h7 Bh8 Kf8 Ng8 Bf2 Rh5 Qdc8 Nh6 Qb7 Rad8 a8B Nf7 Qa7 Re5 Bb7 Rde6 Qa8 Rdd6 Bc8 Rf6 Be6+ Ka3 Bb3 Kb2 Ba4+ Kc3 Be3 Bd5 Bb1 Be4 Bg6 Bf2 h3 Rfe6 Rf1 Bg1 Rf6 Bb6 Rb2 Ra5 Rb5 Bf2 Bg5 Bfd4 Be3 Bdc5 Bg1 Qb7 Nb8 Qd5 Nc6 Qd4 Rf5 Qf6 Rh5 Rd7 Rh7 Red6 Rh4 Rda7 Rh6 R7a6
1B2n1n1/Bk1P3B/r1n2P1N/QKBrb1q1/6RR/b1Rp1rN1/6n1/Q5N1 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 d4 c5 c4 d5 Bh6 Be6 Bf4 cxd4 Bc1 d3 Bh6 d4 Bc1 Bd5 cxd5 Qc8 Qf3 Qc7 Qd1 Qd8 Kd2 Kd7 h4 Kc7 f4 e5 b4 g5 h6 a5 d6+ Kb7 h5 g4 h7 a4 b6 a3 b5 g3 f6 e4 h6 a2 f5 g2 f7 Qd7 f6 Kc8 b7+ Kd8 b6 Qc8 d7 Bg7 f8B Ra6 Bc5 Nc6 b8Q Ra8 b7 Ra6 Rh4 Bf8 Qa8 Kc7 Nc3 Bd6 Ba7 Ba3 Nce2 Qd8 Rb1 a1B Ng3 Qe8 Bb2 Qh5 Rg4 Qb5 Rc1 e3+ Ke1 e2 Kd2 e1N Rc3 Qd5 Qb1 Qa5 Bc1 B1b2 Qa1 Qe5 Be2 Qd5 Bd1 Qa5 Bc2 Qg5+ Kd1 d2 Ke2 d1R Be3 Rd3 Bf2 Rf3 Bc5 Rb6 Qa5 Kb8 Be4 Kc7 b8B+ Kb7 Be3 Ra6 Kd2 d3 Bf5 Nge7 Bg6 Rc8 h8N Ng8 h7 Re8 Be4 Re5 Nf7 Ref5 h8R Rd5 Nh3 g1N Bh7 Ne2 Nh6 Ned4 Ng1 Nb5 Bca7 Rf4 Bec5 Nd6 Ke3 Ne8 Kd2 Rdf5 Ke3 Rf3+ Ke4 Nce7 Kd4 Nc6+ Kc4 Rd5 Kb5 Ng2 Rb3 Be5 Rc3 Bc7 Rh4 Nge7 Rg8 Be5 Rg6 Ng8 Rg7 Qf5 Rgg4 Qg5
3KnNn1/p1P1r1Q1/b4P2/R2q1R2/6Nk/Br5b/NBn1B1Q1/n2R1Nr1 w - - 0 1 legal: proof: g4 b5 d4 c5 f4 cxd4 a4 f5 axb5 g5 fxg5 f4 h4 e6 e4 f3 g6 Qb6 g7 Be7 g5 Qd8 g6 Bg5 hxg5 f2+ Kd2 Qc7 Bc4 f1N+ Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Kf2 Ke7 Kf3 h5 Kf4 d5 Ke5 d3 b4 d2 c4 h4 b6 h3 b5 d4 c5 h2 f6+ Ke8 b7 d3 b6 Rh6 c6 Ne7 g8N Nd7+ Kd6 e5 b8B e4 g7 Kf7 b7 Kg6 Qc2 Kh5 g6 d1N Ra5+ Kh4 Nd2 e3 Bb2 Rh5 Be2 Rb5 Nf1 d2 Nh6 Nf2 g8R d1B g7 Rb3 Ng4 Ne4+ Ke6 Nd6 Qe4 Nd5 Qg2 Ne8 Bd6 Ne7 b8N Ba6 c7 Nc5+ Kf7 Bc2 Nd7 Bf5 Nf8 Rab8 Qf3 R8b4 Qg2 Re4 Rh8+ Kg5 Rh3 Ng8 Rf3 Kh4 Rf2 Bfc8 Rf5 Re6 Be7 Qd5 Bd6 Nd3 Bda3 Nb4 Nh7 Nc2 Nf8 Ne7 g8Q Na1 Qg7 Ng8 Bd3 Bd7 Ne2 Bdc8 Nc1 e2 Rg1 h1R Na2 e1N Be2 Nec2 Nfh2 Bd7 Rd1 Rg1 Nf1 Re5+ Ne6 Nh6+ Ke7 Ng8+ Kd8 Ree3 Nf8 Re7 Re5 Qb5 Nf2 Bh3 Rf5 Qe5 Ng4 Qd5+
2r1R3/1b1Q4/N1q1Q3/b1rB3k/Kp4rB/1NqB1B2/1RPPN3/nR3n1r w - - 0 1 legal: proof: e4 c5 h4 f5 exf5 d5 b4 cxb4 Na3 g5 hxg5 a5 Bb5+ Kf7 Bd7 a4 Nb5 d4 Nxd4 a3 Nb5 Ra6 Nc7 Ra5 Bxa3 Ra6 Bc1 Ra8 f4 e5 g4 b5 a4 h5 a5 b3 g6+ Kg7 a6 Kh6 g7 b2 a7 b1Q g5+ Kh7 f6 Kg6 f5+ Kf7 Ke2 e4 Bb2 h4 Ra2 e3 Kd3 e2 Kc3 e1R Kb3 b4 Qg4 h3 Na6 h2 Ne2 Rh3+ Ka4 Qb6 Bb5 Nc6 Bd3 Rb8 a8B Na5 Bf3 Ne7 g8R Bg7 Re8 Rh5 Bc3 Qc5 Rb2 Nb3 Bd4 Rd1 Bf2 Nd5 Bh4 Bb7 Qd4 Ne3 Qd7+ Qe7 Rg1 h1R Rf1 Bf8 Rg1 Nf1 g6+ Kg8 g7 Kh7 g8B+ Kh6 f7 Qe4 f6 Na1 Qe6 Be7 f8N Bd8 Nd7 Rc8 Ndc5 Ba5 Nb3 Rhc5 f7+ Qg6 Qd7 Qg7 f8Q Rc1 Bfe4 Kh5 Bgd5 Qc3 Qfd6 Re1 Q6e6 Qd1 Ned4 Qf3 Ne2 Qg2 Ned4 Re3 Ne2 Rg3 Bf3+ Rg4 B5c4 Ng3 Rgb1 Nf1 Bcd5 Qh2 Rg8 Qc7 Re8 Qc6+
2r2b2/b4n2/1k1N1Q1n/3BQ1BP/2RR3p/brR4q/1q2PB2/N1N1RKb1 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 a4 g5 axb5 d5 cxd5 h5 Qa4 Qf6 Qb3 Qh6 Qd1 h4 h3 Qh5 gxh5 g4 Ra6 g3 Ra1 Bg4 hxg4 Be7 Ra3 Bb4 Ra1 Bf8 b4 Kd8 d4 f5 d6 a5 b6 c5 g5 c4 g6 f3 g7 c3 b5 a4 d7 f4 d5 g2 b7 Kc7 d8N c2 d6+ Kb6 d7 a3 Qd6+ Ka7 b6+ Ka6 Nc3 a2 Qf6 Nc6 b8B Ba3 b7 Rh7 Rh3 Rh6 Ba7 Bb4 b8Q Bf8 Qbe5 Rc8 Nb7 Rh8 d8R Nh6 Rb1 a1B Na2 Bd4 g8R Bdc5 Be3 c1B Rd4 B1a3 Nd6 Nd8 Rg4 Ndf7 Nc1 Rb8 Bf2 Rb3 Bb6 Rg8 Bd8 Rh8 Qfe6 Ba7 Bg5 Kb6 Q6f6 Rb5 Rbb4 Rg8 Rbc4 Rb3 Rgg3 Rh8 Rh1 Rg8 Nh3 g1B Bg2 Rh8 Kf1 Rg8 Na2 Rh8 Nb4 Rg8 Nc2 Rh8 Be1 f2 Rgc3 Rg8 Bd5 Rh8 Kg2 Rg8 Na1 Rh8 Kf3 f1Q+ Bf2 Qb1 Kg2 Qb2 Kf1 f3 Nf4 Rg8 Nd3 Rh8 Bg3 f2 Nc1 Be7 B3f4 Rc8 Be3 Bf8 Kg2 Bh2 Re1 Bg1 Kf1 Nd8 Kg2 f1Q+ Kh1 Qf5 Kg2 Ndf7 Bf2 Qd7 Kf1 Qh3+
r1N2Bb1/n3R1K1/b1N1BN2/1kN2PB1/1q4q1/n5R1/PQ2n1Qp/n2r3Q w - - 0 1 legal: proof: g4 a5 c4 f5 e4 g5 exf5 d5 cxd5 e6 h4 Bc5 hxg5 Bb6 f4 Ne7 b4 axb4 f6 Ra5 g6 Ng8 g5 Ra8 f5 Bc5 Bd3 Bf8 Bf1 Bg7 fxg7 Qe7 Qb3 Qf6 Qd1 Qd8 Kf2 Kd7 Kg3 h5 Kf4 b5 Ke5 c5 d4 b3 d6 Kc6 d7 h4 Qc2 h3 Nd2 b4 Ne2 c4 d5+ Kb5 d6 b2 Rg1 b1B Qb2 h2 Ne4 b3 Nc5 c3 Rg3 Ne7 Kf6 e5 g8Q e4 g7 e3 g6 c2 Bg2 Na6 Bd5 Qb6 d8B Be6 d7 Nc8 Be7 Nb4 d8Q Na7 Bf8 Qc7 Bd2 c1N Qe7 Qb6 Qb7 Bd3 Rb1 Bf7+ Be6 Nc2 Qh1 Qc6 Ra1 Qe4 Rb1 Qg4 Nd4+ Kb6 Ra1 e2 Bg5 e1Q Nc6 Ne2 Rd1 Ba6 Rd7 Rd8 Re7 Na1 Qh7 Qh5 g8N Rd4 g7 Nf4 Qa3 b2 Qc3 b1N Qb2+ Nb3 Rd7 Na3 Bd6 Ng6 Nge7 Ra8 g8N Rd1 Kg7 Qb4 Nf6 Qhg4 Qh3 Kb5 Q3g2 Bg8 Nc8 Na1 Bf8 Nf4 Re7 Ne2
B1rBBq2/P1P1p2r/1b3NQb/1Q2NRbQ/Q3n3/RK2q3/3n4/2k2b1R w - - 0 1 illegal: No possible last move
b1RR2BQ/1N5b/n3R3/1Q1r4/BQ1PBK1k/p1P1b3/2Qq1Nr1/r2q3q w - - 0 1 illegal: No possible last move
1n6/q3r1Rq/3n4/1BPnpb2/1kBR1PQ1/2r2NQq/4R3/NBN1RKr1 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 exf5 g4 dxc5 Ba6 Qf3 Bb7 Qd1 Bc8 h4 g3 f3 Bh6 Be3 Bb7 Bf2 Bg7 Kd2 gxf2 g4 Nf6 g5 Ng8 g6 Bc8 Ke3 Bf6 Kd2 Bg5+ hxg5 Qc7 Nh3 Qb6 Ng1 Qd8 Ke2 a5 b4 d5 c4 Kd7 g7 h5 f6 e6 f7 a4 f8R h4 b6 Kc6 b5+ Kb7 g6 d4 Rh2 a3 Nc3 h3 Rf4 Qe8 Na2 Ra6 Nc1 Nf6 g8B a2 g7 Qf7 c6+ Ka8 c7 Kb7 c5 Ra7 Bh7 Ne8 g8B Nd6 Bb1 Qh7 Rh4 Bd7 c8R e5 Bc4 Bg4 Rg8 Bf5 Rg5 Re8 Rg7+ Re7 Re4 Ra5 f4 Ra3 Nf3 Rc3 Rhg2 h2 Qb3 Ka8 b7+ Ka7 Qd1 h1R Qe1 Nc6 b8N Rg1 Na6 Nb8 b6+ Kb7 Rh2 Kc6 b7 Rg2 Qd1 Nd7 b8Q d3+ Ke3 d2+ Ke2 Bg6 Qe8 Bf5 Qg8 Nb8 Qb3 d1N Rd4 Ne3 Nb4+ Kd7 Qd1 Nd5 Nc2 Kc6 Qd3 Bg4 Qg6 Bd7 Qg3 Bf5 Bb3 Kb5 Bc4+ Ka4 Qc8 Be4 Qcg4 Bf5 Kd2 Ka5 Bfe2 f1Q Bb5 Rg1 Bec4 Qfh3 Re2 Rg2 Ke1 Bd3 Ne3 Kb4 Kf1 Be4 Bbd3 Bf5 Nc2+ Ka5 Rb1 a1Q Be4 Qa2 Na1 Qa3 Na2 Qa4 Rbe1 Qa3 Nc1 Kb4 Bc2 Qa7 Bb1 Rg1+
7N/1k1Bn1NK/4qNB1/PBp3n1/1BR2rrb/1R1n1r2/3Qq1qP/1QR5 w - - 0 1 legal: proof: g4 c5 d4 d5 f4 h5 gxh5 e5 c4 a5 cxd5 Qd6 b4 axb4 fxe5 Qc7 d6 Bd7 d5 Bc6 dxc6 Qd8 Kf2 f5 Kg3 b5 Kf4 g6 e4 b3 a4 b2 c7 Kd7 c8B+ Kc6 h6 b4 d7 b3 a5 Qe8 Kg5 f4 d8Q f3 h7 f2 e6 Ne7 e5 Rg8 h8N Bg7 Ne2 Nd7 Nf4 Bf6+ Kh6 g5 Bd2 g4 Ra4 g3 Nc3 b1R Kh7 g2 Rc4 g1N Nh5 b2 Ng7 Bh4 Ne4 Nh3 Bb4 Ra7 Be2 f1Q Nf6 Qg2 Qb3 Ra1 Rhc1 b1Q+ Qc2 Qb2 Qb1 Ra6 Bh5 Ra3 Bg6 Ra8 Ba6 Rf3 Bc8 Nf5 e7 Qbe2 e6 Ne5 Qd2 Nd3 Bd7+ Kb7 Bb5 Qc8 e8B Ne7 Bed7 Ra7 R4c3 Ra6 Rb3 Rd6 Rc4 Rd4 Rc1 Rdf4 Rc4 Nf5 e7 Qc6 e8R Ne7 Rc1 Qce6 Rb8+ Ka7 Rb6 Ka8 Rd6 Kb7 Rd4 Ng5+ Kh6 Rf8 Re4 Rg4 Rec4 Ne4 Kh7 Rf7 Ng8 R7f4 Nf6 Ng5+
n2R4/1bB2q2/R1Pbk1n1/QB1N1p2/1B2Prb1/4Q3/2BQn1qN/1K1R3q w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Ra5 bxa5 Qf6 Bb2 Qg5 Bc1 Qd8 Kd2 Ke7 h4 d5 e4 g5 c4 f5 Kc2 g4 c5 a3 e6 g3 a6 a2 h6 g2 h5 Kf6 a7 Bd6 a8Q Be7 b6 Bf8 h7 Nd7 e7 Ne5 e8B Qd7 h6 Bd6 b7 Ne7 b8B Bb7 Nc3 N5g6 Ba3 Nc8 Qd2 Nb6 Qa5 Ke6 Bc7 Na8 Bb4 Qf7 Nf3 g1N Bfb5 Ne2 Rhd1 d3+ Kb2 d4 Nh2 Rg8 h8Q Rg7 Qe3 d2 h7 d3 Nd5 Rg8 Qhd4 Rh8 Rdc1 d1B c6 Rg8 h8R d2 Qdc3 Rg7 Rcb1 Rh7 Qcd3 Rh4 Bd7+ Ke5 Rd8 Rf4 Be8 Ke6 Qc3 Ba4 Re1 d1Q Qcd2 Bb3 Rf1 Qe1 Rg1 Qg3 Rgd1 Qg2 Bd7+ Ke5 Be6 Ba4 Ne7 Bc2 Bb3 Bd3 Nd5 Ke6 B3a4 Bc2 Rg1 Bd1 Bc2 Ng3 Rf1 Be2 Rfd1 Bg4 Rab1 a1Q+ Kc1 Qh8 Ra1 Qh5 Kb1 Qhh7 Qab6 Ne2 Ra6 Qhh3 Qa5 Qh4 Bca4 Qe1 Bc2 Qeh1
1bQ1Q1RR/r2N4/P3q2q/2b1B2B/Pkqp3n/R1R2b1B/n5nN/3Q1K2 w - - 0 1 legal: proof: g4 a5 b4 b5 bxa5 f5 d4 c5 e4 cxd4 exf5 g5 fxg6 Nf6 h4 Nc6 f4 Ra7 g7 Ra8 g5 Nb8 f5 Ng8 h5 Ra6 Ke2 Rd6 Ke1 Rg6 hxg6 Qc7 Na3 Qb6 Nb1 Qd8 a4 h5 c4 d5 c5 Kd7 c6+ Kd6 c7 Kc5 f6 e5 f7 e4 a6 d3 Nf3 b4 Bg2 e3 Rf1 d4 Rh1 d2+ Kf1 b3 Qe2 d1N Rh2 b2 Ra3 h4 Rh1 h3 Ng1 h2 Qh5 Rh7 Bh3 Qd5 Nf3 Bg4 c8R+ Kb4 Ne5 Nc6 Nd2 b1Q Nd7 Qbb3 Nf3 Nh6 g8R Nf5 g7 Bc5 f8Q Nh4 g6 Qe6 Qe8 e2+ Ke1 Be7 Bf4 Qbc4 Be5 Ne3 Kf2 Bf8 Rc1 h1Q Nh2 Bf3 Rcc3 Bd6 Rh8 Bc7 g8Q Neg2 g7 Bb8 Rd8 Qc1 Qg4 e1B+ Kg1 Qb3 Kf1 Qch6 Rc8 Qbd5 Qgf8+ Qc5 g8B Bd2 Qff5 Qcc4+ Qd3 Bg5 Bf7 Be7 Bh5 Bc5 Qe2 Na5 Qgg8 Nb3 Qg4 Nc1 Rd8 Qcd5 Qd1 Na2 Qgg8 Qf5 Qge6 Rf7 Qc6 Qfe6 Qc8 Rh7 Qe7 Qb3 Rdg8 Rg7 Qee8 Qc2 Nb6 Ra7 Nd7 Qcb3 B3g4 Qbd5 Bh3 Qc4+
Rb6/q6Q/2B1K1rN/2kBB1rP/4r1Q1/1r1RrPR1/N2b1BpQ/4b1n1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 h4 h3 g5 Ne2 Bf5 Ng1 Bg6 Ra4 Nc6 Ra6 Bh5 Ra1 Ne5 gxh5 g4 Ra4 g3 Ra1 Ng4 hxg4 Rc8 Ra2 Rb8 Ra1 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kf5 a5 b4 e5 d4 e3 b6 a4 b5 a3 g5 e2 g6 e1B b7 a2 b8B+ Qc7 b6 h3 g7 e4 b7 g2 Be3 h2 Nc3 c4 Nge2 Ra6 Ng3 Ra8 Qg4 Nf6 g8B Ra4 f3 Rh6 Bf2 e3 Rd1 a1B Rd3 e2 Na2 c3 Be6 c2 Bd7 Bb4 Bc6 e1R Be2 c1R Bd1 Nh7 Bb3 Bd2 Bc4 Ke7 d6+ Kd8 d5 Ng5 d7 Ke7 d8R Nh3 Bb3 Rae4 Rc8 Qa5 Be5 Rg6 Ra8 R1e3 b8Q Rc5 Bc4 Bg7 Qh8 Qc7 Qh7 Bac3 Bb3 Qa7 Bc4 Kf7 d6+ Rd5 d7 Ke7 Bb3 Ng1 Bc4 Be1 Bb3 Bcd2 d8Q+ Kf7 Qb8 Ke7 Qhg8 Bh6 Qh8 Bf4 Qh7+ Rg7 Bc4 Rd6 B4d5 Rg6 Ba1 Bc7 Bb2 Kd6 Bf6 Kc5 Be5 Rg5+ Ke6 Bd6 Nf5 Bc7 Nh6 Bd6 Qb7 Bb8 Qc7 Ne2 Rf1 h1R Rg1 Rh4 Rh1 Ng1 Rh3 Rb4 Rg3 Rb3 Qh3 Ra4 Qd7 Rg8 Qh2 Rd4 Qdg7 Rde4 Qgg6 Rg7 Qf5 Rg8 Qg4 R8g6+
kr1n2QB/6pB/3Bb1Pr/6r1/Nqr1P2n/N1r4R/2QRK1B1/1R2N2n w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e5 a4 exf4 b4 b5 axb5 h5 Qc2 a4 Qf5 Bc5 Qxh5 Bb6 Qh7 Ba5 bxa5 Bd7 Kd1 Bf5 Ke1 Bc8 h4 Kd7 g4 f5 d4 c5 a6 Kc7 g5 f3 d6+ Kb6 d5 Ka7 d7 f4 h5 a3 d6 c4 h6 c3 Qc2 a2 h7 Bb7 Rh3 Nh6 Na3 Qf8 d8N Bc8 d7 Qb4 Ne6 Nf5 d8R Nc6 Bg2 Rb8 b6+ Ka8 a7 Nh4 Nc5 Be6 Rd2 Nd8 Rb1 a1R Na4 Ra2 e4 f2+ Ke2 f1R Nf3 Rg1 g6 Ra1 Ne1 f3+ Kd1 f2 Ke2 f1N Bb2 Rf8 h8B Rf5 Bc1 Rh5 Bb2 Rh6 Bc1 Rc8 Bb2 Rc4 Bc1 Kb7 a8B+ Kb8 b7 Ng3+ Kd1 Nh1 Ke2 Ka7 Bb2 Ra2 Ba1 Rb2 b8Q+ Ka6 Qc8+ Ka7 Bd5 Rb3 Qc1 c2 Be5 Rbc3 Bd6 Rb3 Qb2 c1R Qa2 R1c3 Qc2 Bd7 Bg8 Be6 Bh7 Rb2 Qd7+ Ka8 Qf7 Rbb3 Qg8 Rb2 Bf1 Rg5 Bg2 Qa5 Bf8 Rb8 Bd6 Qb4
2qNNB2/Pnnn1Rr1/4B1n1/1N3Q2/R2b4/Q1n1R1pR/2P1r2r/1B2k2K w - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 f5 dxc5 Kf7 exf5 Ke8 f3 h5 gxh5 e5 Bb5 e4 Ba3 e3 Bc1 b6 Bd3 Bb7 Bf1 Be4 fxe4 Qf6 Nf3 Qe7 Ng1 Qd8 h4 Kf7 a4 Kf6 h6 Ke5 h5 Kf4 f6 Kg3 c6 d5 a5 g5 f7 g4 c7 e2 c8B b5 a6 d4 a7 b3 e5 d3 h7 b4 e6 b2 h6 b3 e7 Na6 e8N Ba3 f8R Nc7 Nc3 b1R Nh3 b2 Nf4 Bc5 Nb5 Ne7 Rf7 Ng6 Be6 Bd4 Ra4 Qc8 Ba2 Kf3 Bh3 g3 Bhe6 Rg8 h8R Rg7 h7 Ra1 Re7 b1N Rf7 Na3 Rh3 Nc4 Bb1 Nb6 Ba3 Nd7 Qc1 Rb8 Bf8 Rb6 Bea2 Re6 Qa3 Re4 Ne6+ Kg2 Kd2 e1N Nd8 Re2+ Kd1 d2 Be6 Kg1 Rg8 Nd3 h8Q N3c5 Qh5 Rh2 Qf5 Nb7 Rgh8 Kg2 Ke2 d1N R8h5 Kg1+ Kf3 Kf1 R5h4 Re2 Re4 Ke1 Re3 Nc3 Re5 Bf2 Kg2 Be3+ Kh1 Bd4 Bba2 Rd1 Bb1 Rd3 Re4 Rf3 Re5 Rf2 Re3 Rh2+
1q2RrK1/1R3rBQ/B4Q2/PRN1P2n/5B2/1Rbp2N1/2r3rk/N3nq1r w - - 0 1 illegal: No possible last move
3N1n1B/RQ3nPB/q2r1Bb1/1Q2rkP1/1r5R/q1r5/R1p1r1Q1/B4KN1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 d4 Kd7 b4 e5 b6 c5 f6 a5 f7 h5 f8R a4 d6 Ke6 d7 a3 b5 f3 b7 c4 b6 f2+ Ke2 c3 Re8+ Kf5 d5 e4 d6 c2 Ra2 e3 Qd2 h4 Bb2 h3 Nc3 h2 Ne4 Nh6 Re7 Re8 Bh8 Ra4 g7 Nf7 Nc5 Rb4 Ne6 Qc7 d8B Qc5 Bc7 Nd7 b8Q Nf8 b7 Bd7 Bg2 f1R Nd8 Rf3 Bb6 Qc6 Bd4 Qa6+ Ke1 e2 Ba1 Ba4 d7 Rc3 Qc7 Bc6 b8Q Be4 Qcb7 Bd3 Kf2 e1R Qb5+ Re5 Q8b7 Be4 Kf1 Bd3+ Qe2 Be4 Nc6 Bd3 d8B Be4 Rd7 Re6 Bf6 Rd6 Nd8 Bd3 Rb2 a2 Re7 Kf4 Bd5 Bg6 Qg2 Kf5 Bb3 Nh6 Bg8 Nf7 Bh7 Qa3 Q7d5 Qa6 Ra7 Qa3 Rb1 Qa6 Qb7 Qa3 Bb2 a1Q Re1 Q1a2 Ba1 Qa6 Re4 Q2a3 Rh4 Ne6 Qgd5 Q6a4 Nh3 Rg4 Kf2 Rc8 Bc3 Nf8 Ra1 h1R Ra2 Re1 Ba1 Qa6 Ng1 Rc3 Qg2 Re2+ Kf1 Rb4
N2nqq2/6p1/1QqBq3/1Q1BrB2/P4R1b/Rn3R1P/1k2B1q1/3Q1KbN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 d6 gxh5 d5 f3 b5 Qd2 e5 Qc3 d4 Qd3 Be6 Qe2 Bd5 exd5 e4 Qd3 e3 Qd1 Ra7 Ba3 Re7 Bc1 Re4 fxe4 Qf6 Ne2 Qg5 Ng1 Qd8 a4 Kd7 c4 f5 h6 e2 h7 d3 d6 Ke6 h3 Ke5 c6 Kd4 c5 f4 e5 b3 c7 b2 c8R f3 e6 b4 c6 b3 c7 Nf6 d7 Nc6 e7 Ne4 e8B Nc5 Nc3 b1Q Nd5 b2 Bf7 Nb3 Bf4 Qc1 Nb6 Kc3 Ra3 b1Q Bd6 Qbc2 Bd5 Kb2 Na8 Qe8 d8Q d2+ Kf2 Rg8 h8Q Qf5 Qd7 Nd8 Qh6 Qfe6 Qb5 Qcc6 Rb8 Be7 c8B Bf6 Qe3 Bd4 Rh2 Ba7 Qeb6 Rf8 Rb7 Rf5 Rf7 Re5 Rf4 Qf8 Bd7 Qee8 Bf5 Qe6 Bg2 e1B+ Kf1 Bh4 Ne2 f2 Ng3 Qee8 Bgf3 Qe6 Qe1 d1Q Nh1 Qce8 Be2 Qc1 Qd1 Qcc6 Rg2 Bf6 Rg3 Bh4 Kg2 f1Q+ Kh2 Qf3 Kg1 Qe4 Kf1 Qec2 Rgf3 Qe4 Qc7 Bg1 Qcb6 Qec2 Bg4 Qcg6 Bf5 Qg2+
2Bb1R1q/1PN1P1qk/r2Q4/bp1B2n1/2qBRqN1/2R1Q3/2K1q1Q1/R3r3 w - - 0 1 legal: proof: b4 e5 h4 c5 bxc5 g5 hxg5 b6 a4 Qf6 d4 exd4 f3 Qd8 a5 Nc6 a6 Bb7 axb7 Ne5 Ra6 Qc8 Ra1 Ng4 fxg4 Qd8 Kd2 h5 e4 f5 c4 Kf7 c6 Kg7 c5 a5 e5 d5 g6 h4 g5 a4 g4 f4 c7 f3 c8B a3 e6 h3 c6 a2 c7 d3 Nc3 b5 Bb2 d4 Bg2 h2 Nh3 f2 Bd5 f1Q Nf2 Bb4 e7 Ra6 Qe1 Nf6 Qe3 Nh7 Rg1 Qg2 Rge1 h1Q Kc1 d2+ Kc2 Qf8 Re2 Qf7 Ree1 Kg8 g7 Qe6 Re2 Ba5 Ree1 Kf7 g8R Qf3 Rd8 Kg7 g6 Qf4 Rf8 Ng5 Re2 Kh6 g7 Kh7 g8R Qef6 Rg6 Qg7 Rc6 Qf1 Ree1 Qc4 Re2 Nf3 g5 Rg8 Ng4 Qh8 Rc1 a1B Ree1 Rg6 Re6 Rh6 Re4 Rh1 Red1 Re1 g6+ Kg7 Nh2 Kh6 g7 Ng5 g8Q Bb6 Qe6+ Kh7 Ng4 Ba5 Qd6 d3+ Kb1 Rh1 Re1 d1Q Rf1 d2 Rf3 Qg1 Kc2 d1Q+ Kb1 Qge1 Rf1 Rh5 Bf7 Qdb3 Bd7 Bb4 c8Q Qc7 Nd5 Qbc3 Rh1 Qce5 Bd4 Qeg7 Rg1 Qcc3 Rf1 Qd3+ Qc2 Qc4 Bc8 Bac3 Qg2 Qee2 Rc2 Be1 Kb2 Bed2 Ra1 Rh1 Rcc1 Bc5 Bfe6 Bb6 Rc2 Bd8 Nc7 Qge5 Bd5 Re1 Rcc1 Ba5+ Rc2 Qef3 Rc3 Qeg7 Kc2 Qfe2+
4nbRq/P1B1B1Bk/1p1K3q/4RqQB/1P1Q4/1q1N3R/2Q1nN1b/2q1r3 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 b4 Nb8 Be2 a5 Nf3 Ra6 Ng1 Rg6 Ba6 Rg3 Bf1 Rb3 Bc4 a4 axb3 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Qd7 Ke2 Qd6 Ke1 Qd8 Ke2 Kf7 Kd3 Kg7 Kc4 e5 g4 c5 f4 h5 d4 e4 d6 b6 Kd5 e3 g5 h3 g6 h4 d7 e2 f6+ Kh6 f7 e1Q g7 a2 a5 h2 f5+ Qd2 f6 c4 a6 h3 a7 c3 Qc2 Bc5 f8B Be7 f7 Bd6 Be7 Bf4 f8B Qf2 Ne2 Qg3 Nd2 Nc6 Ne4 Qc8 d8Q Kh7 Nf2+ Qd3 Rb1 a1B Bd2 Bg3 Nf4 Qcf5+ Kd6 Nf6 d5 Nd4 g8R Ne2 Bg7 Qc4 Bg2 Qb3 Bf3 Bb2 Rhe1 h1Q Bh5 h2 Ra1 Bc1 Ra3 Bb2 Be3 Bc1 Bd4 Be3 Be5 Bc5+ Kc6 Bd6 N4d3 Bc5 Bc7 Bf4 Qb1 c2 Qd6 c1Q Qc2 Bg3 Qe5 Qh6 Qd4 Qg1 d6 h1Q+ Bf3 Q1h5 d7 Bh2 d8Q Qgg5 Q8d5 Qc1 Q5e5 Qhh3 Bh5 Qh4 Qee3 Qhh3 Qg5 Bcd6 Bed8 Bf8 Be7 Qhg6 Qgh4 Bd6 Ra6 Qbb2 Rh1 Qb3 Rh2 Qgg5 Bf3+ Kg6 Qg3 Rh4 Bg4 Qh5 Ra5 Qh8 Qge3 Kh7 Qg5 Bf4 Bf3 Rg4 Re5 Qh6 Rh4 Bh2 Kd6 Rg1 Bh5 Re1 Rh3 Ne8#
2kN3B/1bN2Q2/3n2N1/nN2p1P1/qq1nRQ1R/1q2P3/2rqQ3/1K1bB1R1 w - - 0 1 illegal: No possible last move, all moves rejected
n1b1N3/1k1n2Pq/1N1B4/3nb1R1/RNB1qq1P/5Brp/2R4K/QBnQ4 w - - 0 1 legal: proof: d4 b5 f4 c5 h4 cxd4 a4 a5 axb5 e5 fxe5 g5 Ra3 h5 Ra1 Ra6 g3 Rah6 hxg5 h4 Ra3 h3 Ra1 Rh4 gxh4 Bg7 Bd2 Bh6 Bc1 Bf8 Kf2 d5 Kg3 Kd7 e4 Kc7 c4 f5 b4 d3 b6+ Kc6 e6 f4+ Kh2 a4 b7 d4 e5 a3 b5+ Kb6 c5+ Kc7 g6 a2 b6+ Kc6 e7 f3 e8B+ Qd7 e6 d2 g7 f2 e7 d3 Nf3 Na6 b8R Rh6 b7 Nc7 Ne1 Ne6 Nc3 Rf6 Ba3 Rg6 Nd5 Nc7 Rg1 Na8 Nb6 Rg3 Nc2 Nf6 Bg6 Qe6 e8N Nd7 Rc1 a1N Nb4+ Kb5 c6 Bd6 c7 Qe4 Rc2 Be5 Bh5 Nb3 Bf3 Qh7 Qa1 d1N B1e2 Ka5 Bf1 d2 Bc4 Nc3 Rg2 d1Q Rg1 Nf8 Rg2 Be6 c8B f1Q Rg1 Bg4 Bf5 Qd5 Rd8 Nc1 b8Q Qd4 Qd6 Qe4 Qd1 Nd5 Bg6 Bc8 Rgg2 Nf6 Rd4 N8d7 Bf5 Qd5 Rg4 Qe4 Rg5 Nd5 Ra2 Qf4 Bb1 Qfd3 Rgc2 Qdd4 Bb3 Kb5 Bc4+ Kc5 Na6+ Kc6 Bd6 Qde4 Nb4+ Kb7 Ra6 Qf6 Ra4 Qff4
2R2R1r/R2BP1q1/Qp6/3R2r1/3N2N1/1q1P1bQ1/r1q2qBN/1n1k1BbK w - - 0 1 legal: proof: f4 e5 fxe5 d5 b4 a5 bxa5 f5 g4 d4 Ba3 f4 Be7 h6 Bg5 hxg5 c3 Nc6 cxd4 Nce7 d5 Nf5 gxf5 Rh3 Nf3 Rh4 Ng1 Rh8 Kf2 Ke7 Kg2 c5 e4 g6 h4 b6 a4 g4 h5 c4 a6 c3 a7 g5 e6 Kf6 h6 Ke5 h7 Kd4 d6 g3 a5 c2 d3 Ke3 e7 c1R e8B g4 d7 Rc5 a6 Rc1 f6 Rb8 a8Q Bb7 f7 Rc2+ Nd2 Qc7 d8R Nf6 a7 Ra2 Rh5 f3+ Kh1 f2 Bd7 Bc5 f8R Nd5 e5 Nc3+ Ndf3 Nb1 e6 Bd4 e7 Qc2 Ne2 g2+ Kh2 Rg8 h8N Rg5 Nf7 Bd5 Nh6 g3+ Kh3 g1Q Qe1 g2 Nh2 Be4 Rc8 Bf3 Qb7 Qh1 a8B g1Q Qa6 Bc5 Qc3 Bd4 Qc7 Kd2 Qg3 Kd1 Ng4 Bc5 Nd4 Qb3 Bg2 f1Q Bd5 Qe2 Bf1 Qgf2 Bb7 Qhg1 Ba8 Rg7 Rd5 Rg5 Bac6 Qe5 Bb7 Qfc2 Ba8 Qge3 Bac6 Qg7 Bb7 Be2 Kg2 Qf2+ Kh1 Ra8 Rdf5 Rb8 Bbg2 Bf3 Rd5 Qe1 Ne2 Bg1 Nd4 Qef2 Qb7 Rb2 Ra7 Ra2 Qa6 Ra8 Rcc7 Re8 Rc8 Rd8 Rf4 Rg8 Rff8 Rh8
3q2RQ/1Rbp2r1/Q1q3NK/1r3b1N/PRP3kB/1Q1B3n/3rq3/3r1RN1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 b4 axb4 f3 Ra4 f4 Ra8 fxg5 Bg7 h4 Qc7 g4 Bf8 g6 Qc6 h5 Qc7 g5 Nc6 g7 Ne5 Bg2 Qa5 Bf1 Ng6 hxg6 Qd8 Kf2 h5 Kf3 b5 Kf4 e5+ Kf3 Ke7 c4 b3 a4 e4+ Kf4 b2 c6 b4 c7 e3 f6+ Ke6 f7 e2 Nf3 e1Q Bd3 h4 Ng1 h3 Nd2 b1R Nf1 h2 Qb3 Nf6 g8R Bb7 c8Q Be4 g7 Ng4 g6 Qe2 Ng3 Nf2 Nh5 Bf5 Bd2 Re1 Rb1 Rd1 Be1 Bc5 f8R Bb6 Qa6 Rd2 Rf7 Rb8 Rff8 Rh7 Rf6+ Ke7 Kg5 Bc7 Rb2 Rb5 Rb6 Rh6 Rb7 Rh7 Qc2 b3 Qd1 Ng4 Bh4 Nf2 Rb1 b2 Qb3 Rh6 Rh8 Rh7 g8Q Rf7 g7 Nh3+ Kh6+ Ng5 Rf1 b1R Qh7 Ra1 Rg8 Rad1 Qa8 Ke6 Qa6+ Ke5 Qh8 Re7 Rf8 Nh3 g8N+ Rg7 Ne7 Qg2 Rg8 Qf3 Nf6 Kf4 Nh5+ Kg4 Ng6 Qc6 Re1 Qg2 Re6 Qe2 Reb6 Rc5 Rb4 Ra5 Nf3 Rb5 Rf1 h1Q Ng1 Qc6
5QR1/kPqb4/3r4/q3nBr1/K4PN1/N1NB2BR/1p1rqr2/2R2nNQ w - - 0 1 illegal: No possible last move
Q1KR1QN1/rp1nq1Q1/3P1P2/2n1B3/4B1N1/1qQN1Rb1/nb1q2kB/q7 w - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Nc6 g4 Ra7 f4 Nb8 b4 axb4 f6 Kd7 f7 Ra4 f5 Ra8 f6 g5 h3 Kd6 Be2 Bf5 Bd3 Kd7 gxf5 g4 Bf1 g3 Qc2 Ra5 Qd1 Rc5 Bg2 Rc4 Bf1 Rg4 hxg4 Qc8 Ba3 Qe8 Bc1 Qd8 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 Kc5 h5 a4 e5+ d6 h4 d4+ Ke4 g5 c6 g6 g2 a5 b3 a6 h3 a7 h2 a8Q b2 d5 Qe7 Kb6 c5 d7 c4 Kc7 c3 g7 c2 d6 Nh6 g8N Nc6 Qd2 Nb8 Ra3 Ng4 Kc8 Na6 d8B Bg7 f8Q Nc5 f7 Nf6 Ne2 g1Q Nf4 Nfd7 Qc3 Qe3 Nd3 Kf3 Bg2+ Kg3 Nd2 b1Q Nf3 e4 Rb3 Qd2 Nfe5 e3 Ng4 e2 Be4 e1B Ra3 Bf6 Qg7 Qb3 f8Q Kh3 Bb6 Bg3 Bb2 c1N Ba7 Bd4 f6 Na2 Rf1 h1Q Rf3 Kg2 Ra4 Na6 Rc4 Bde5 Bg1 Nac5 Bh2 Qa1 Ra4 Bd4 Ra5 Na6 Re5 Rh5 Re6 Ra5 Re5 Nac5 Re6 Qf7 Re8 Ra7 Rd8 Qe7 Qb4 Be3 Be5 Bd4 Qc4 Bb2 Qc1 Qbe6 Qc3 Qb3
1R4bb/NrQK1R2/r2P3p/2nn3k/B2RPQ2/n3QN2/1N2B1N1/2n3rn w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bg4 b3 Bc8 h4 Ne7 g4 Qd7 h5 Nbc6 Ba3 Qe6 Bc5 Qh6 Be3 Qg6 hxg6 Nb8 Bf4 gxf4 g5 Ng8 Kf2 f5 Kf3 a5 d4 c5 e4 h6 g7 Kf7 d6 Kg6 d7 c4 d8Q c3 e6 c2 e7 c1N e8B+ Kh7 b6 a4 b4 a3 b7 a2 d5 Ra3+ Qb3 Nd7 b8R Ra7 d6 Nb6 b5 Nc4 b6 Nb2 b7 Ra3 Nd2 Be6 Nc4 Bf7 Qe3 Kg6 Ba4 Be7 Be2 Bf6 Qc7 Nbd3 Nb2 Ne7 g8N Be5 Nf6 Rh7 Ng4 Nd5 Rh2 Bf6 Rf2 Kh5 g6 Bg8 g7 Nc5 Rb1 a1N Rf1 Be6 g8Q Bh8 Qf8 Nc2 Rd1 Bg8 Rd4 Re7 Qf6 Ra2 Rf8 Rf7 b8N Na3 Nc6 Rd7 Rf7 Re7 Qb6 Rb7 Qc7 Ra1 Na7 Ra2 Kf2 f3 Kg3 f2 Nf3 f1R Qe5 Ra1 Q5f4 Rh1 Qg1 Ra2 Ne3 Ra1 Qf2 Rg1+ Ng2 Ra2 Q4e3 f4+ Kh3 Kg6 Kg4 Ra1 Ng5 f3 Qg3 f2 Qgf4 f1N Nf3 Rb6 Nc4 Ra6 Rb8 Ng3 Nb2 Nh1 Qg3 Nf6+ Kf4+ Kh5 Ke5 Rb1 Qgf4 N5d3+ Ke6 Nd5 Nc4 Rb4 Nb2 Rb7 Kd7 Nc5+
B2b1R2/R1r1b3/b2BPPR1/5Q1B/1NB1r1Q1/pr1Q4/1nKb2n1/1N1n2k1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 f5 e4 e5 Bd3 Qd6 Be2 fxe4 Bf1 e3 Rh4 e4 Rh1 Qe5 dxe5 Bg7 Nh3 Bh6 Ng1 Bf8 b4 Kf7 f4 Kg6 g4 a5 e6 h5 b6 c5 b5 a4 d6 e2 Kd2 e1N b7 h4 b6 h3 d7 h2 d8Q c4 Qd3 Rh4 Ne2 Nh6 Nec3 Na6 b8Q Be7 b7 Ra7 Nd5 Nb4 Rg1 h1R Qe5 R1h3 b8R Rc7 Ba3 Ba6 Rf8 c3+ Kc1 c2 f5+ Kh7 f6 Kg6 Kd2 Nf5 Q1e2 c1B+ Kd1 Na2 Bd6 e3 Nb4 Bd2 Qc5 Ng2 Kc2 Nc3 Qe5 Kh7 g6+ Kh6 g7 Kg5 g8B Nd1+ Qc5 Rf3 Bf7 Nb2 Bh5 Rg3 Qd1 e2 Ra3 e1B Be2 Rc8 Bf3 Rc7 Ba8 Re3 Qf3 Rh3 Qcc4 Kh4 g5+ Re4 g6 Rg3 g7 Kh3 g8B Kh2 Bh7 Bf2 B7g6 Bb6 Be8 Ba5 Bb5 Bb6 Qc5 Ba5 Bc4 Bb6 Rc3 a3 Qg4 Nfe3+ Kb3 Ra7 Qcf5 Ned1 Kc2 Rb7 Ba2 Bbd8 Rc7 Ra7 Rd7 Rc7+ Bc4 Rc6 Ra7 Rc7 Qe3 Nf4 Qd4 Rb3 Rg3 Ng2 Qd3 Bf4 Qh3+ Kg1 Rg6 Bc1 Qhg4 Bd2
N1NB1Q2/BN1P1K2/RBb2r2/8/1Q5b/RPrQpk1r/Q2bn2r/4n1n1 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 h5 f5 Bd7 g5 Bc6 Be2 Bd7 Bf3 Bc8 Bg4 hxg4 g6 Kd7 Nc3 Qe8 Nb1 Qf7 gxf7 Rh5 Qa4 Rh3 Qd1 Rh8 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 h4 c5 d4+ Ke4 d6 e5 d7 g5 d8B a5 b6 g3 b3 a4 b7 g2 h5 a3 h6 a2 h7 g4 d5 g3 d6 Bg7 f8Q Bd7 f7 Ne7 f6 Nc8 Na3 Ba4 d7 Bh6 Nb5 Na6 b8B Nb4 Nf3 g1B Ne1 g2 Ba7 Ne7 Nd3 Ng6 Nc7 Nc2 Be3 Bf2 Rf1 Rb8 Na8 g1N Qd6 Rb6 f8N Be1 f7 Bc6 Rf6 Nf4 Ng6 Bh4 f8Q Ne1 Ne7 Nfe2 Nc8 B6g5 Bd4 Bd2 Qb8 Ra6 Qb4 Rb6 Qb1 Ra6 Re6 Rb6 Qd6 Kf3 Be3 e4 Rh6 Ba4 Kd5 c4 Ke6 c3 Kf7 c2 Nc5 c1R Qdd3 Bc6 Nb7 Rc3 Rd6 Ra6 Beb6+ e3 Rg6 Rg8 Re6 Rg2 h8Q Rh2 Qhf8 Rh3 Re5 Rh2 Ra5 Rh3 Ra3 Rh2 Qb2 Rh3 Rc1 a1R Rd1 Ra2 Ra1 Ra5 Qbb1 Rg5 Ra6 Rg2 Qb2 Rgh2 Qbc2 Ra5 Ra3 Rd5 Qb1 Rd6 Qa2 Rf6+
3r1RQ1/1QRN1B1r/1n1n2q1/3N2r1/R1Q1p3/b1nr2QB/n2NP2P/3k1K2 w - - 0 1 legal: proof: c4 a5 f4 g5 fxg5 d5 cxd5 b5 b3 b4 a3 a4 axb4 a3 b5 Bf5 Kf2 Be6 Ke1 Bc8 g4 h6 b6 Qd6 g6 Ra7 g5 Qc6 g7 Qd6 g6 Ra8 Bb2 Bd7 Bf6 Ba4 bxa4 Qd8 Bg5 hxg5 d4 Kd7 d6 Ke6 a5 Kf5 a6 Kf4 d7 Ke3 d5 f5 a7 c5 b7 e5 d6 f4 Qa4 g4 Nf3 c4 Bh3 c3 Ng1 a2 Qb5 g3 Bg2 e4 Qe5 f3 Bf1 c2 Qe6 c1N Nc3 g2 Qc4 Qe8 d8Q Nf6 g8Q Nbd7 b8N Nd5 g7 Qg6 Qdc7 N7b6 d7 Ba3 d8R Rh7 Nd7 Rb8 Rf8 Rd8 a8Q f2+ Kd1 Qf7 Qcb8 Qg6 Nf3 g1R Qab7 Rg5 Bh3 f1N Ke1 Ng3 Nd2 Nf5 Kf1 Nd6 Q8c7 Nd3 Rc1 a1R Qcb8 Rb1 Rg1 Rb3 Ra1 Bb4 Ra4 Nc1 Rg2 Na2 Rgf2 Nc7 R2f5 Ncb5 Rc5 Ba3 Rc7 Ne8 Qge6 Ned6 g8B Rg3 Bf7 Rg5 Ncb1 Rd3 Nc3 Rc8 Qe5 Re8 Qg7 Rd8 Qg8 Nc1 Na2 Nc3 Nb4 N1a2 Rc5 Qf5+ Nf3 Ndc8 Qg3 Qg6 Rc7 Nd6 Nh4+ Kd2 Nd5 Rgh5 Nf3+ Kd1 Nd2 Rg5
R1R1r1b1/2QN1PrP/1br3N1/RNR1rQ2/7n/4knK1/1r2rp1B/B6B w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 f4 f5 e4 e5 Ra3 Qg5 Ra2 exf4 Ra1 f3 Qa4 f4 Qd1 Qf5 exf5 Bb7 Na3 Ba6 Nb1 Bc8 Kf2 Ke7 d4 Kf6 h4 c5 b4 a5 h6 g5 b6 c4 h5 g4 b7 Kg5 h7 c3 d6 a4 b5 c2 d7 a3 d8Q+ Be7 b6 a2 f6 Ra3 f7 Ra5 d5 Bf5 h6 Nc6 b8R Ne5 Bb2 c1R d6 Rc6 Qc7 Bd8 d7 Ne7 b7 Re8 h8N N7g6 Qc2 Nh4 Nc3 Bh7 Rc8 Bg8 b8B Rd5 Rc1 a1R h7 Rb1 Ba1 Rb2 Bg2 Ra5 Nb5 g3+ Ke1 Raa2 Ng6 f2+ Ke2 f1R Nf3+ Kg4 Rh3 Ra5 Bh1 g2 Rh2 Rg1 Kf2 Re1 Rh3 g1R Rh2 Be7 d8R Re3 Rh3 Bc5 Rd5 Bb6 Rc5 Nf5 Rh5 Nh4 Rd1 Re4 Rd4 Raa2 Ra4 Ree1 Ra8 Re4 Nfd4 Nef3 Ne6 Re5 Nef8 Rg2+ Kf1 Kg3 Qf5 Rbe2 Nd7 Rab2 Qb1 Ne1 Qf5 Kf3 Rg5 Ke3 Rh5 f3 Rg5 Rg4 Rh5 Rd4 Kg1 f2+ Kh2 Nef3+ Kg3 Ng2 Rh4 Rd3 Rha4 Ngh4 Ra2 Rd1 R2a5 Rg1+ Kh3 R8e6 Qa7 Rcd6 Ngf8 Rg7 Ng6 Rc6 Bc7 Rd5 Bh2 Re4 Qc7 Re8 Kg3 Rde5
4RQnb/n1B3rN/k1P2P2/1np3K1/b2Qb1BB/1R6/3R3n/br1Q1Q1N w - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 axb5 h5 exf5 Nc6 g4 Nd4 gxh5 Qc7 d3 Rb8 Kd2 Nc2 d4 Ra8 d5 Qc6 dxc6 Ne3 Ke2 Nxc4 Ke1 Ne3 Kd2 Nc2 b4 Kd8 h4 Kc7 f4 Kb6 h6 g5 f6 e5 h5 a5 f5 d5 h7 d4 h6 a4 f7 d3 Be2 g4 Rh3 e4 Nf3 a3 Ng5 a2 Nc3 g3 Bg4 g2 Ne2 g1B Ng3 Bd7 Nh1 Bd6 f8Q Bd4 Rf3 Ka7 b6+ Ka6 b7 Ra7 b8B Na3 Bc7 B6e5 Rb1 a1N Rf2 Bg7 Rb3 Nb5 f6 Bc3+ Ke3 d2 Kf4 e3 Qf1 d1B Rd2 e2 Qd6 e1N Qd4 Be8 Kf5 Ne7+ Kf4 Rf8 h8R Nac2 Nh7 Bg6 Kg5 Rb8 Re8 Rab7 Bg3 Bh8 Bh4 Bd3 Bb2 Na7 b5+ Kb6 Ba1 Ng8 Bb2 Ka5 b6 Be4 Ba1 Re7 b7 Na3 Bb2 N3b5 Bc1 Rc8 b8Q Ba1 Qbd6 Ka6 Bb2 Rf7 Bc3 Rd8 Ba5 Rb8 Bc7 Rd7 Qh2 Rf7 Qhe2 Bdc2 Qd1 Nf3+ Kh5 Nh2 Kg5 Ne7 Nf8 Ng8 h7 Bg7 h8Q Rd7 Rb4 Ba4 Rb3 Rf7 Qh6 Bh8 Nh7 Rg7+ Qg6 Rd7 Rbd3 Na3 Qf7 Rb1 Rb3+ N3b5 Qf8 Rg7+
1b1R4/Q3Q2B/N2P4/2KpB1Pb/1Q1Nnq1R/1rQ5/k1b4q/b1bB1Rq1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 axb5 f5 exf5 Qd7 c5 Qd8 d4 a5 Bd2 Ra6 Bh6 Rd6 Bc1 Nd7 cxd6 c5 Qg4 c4 Qd1 Nc5 dxc5 Bd7 Bd2 Be6 Bc1 Bc8 Kd2 Kf7 Ke3 e5 g4 h5 f4 h3 b4 h2 g5 h4 f6 Ke6 c6 a4 f7 c3 b6 c2 b7 e4 Kd4 e3 b8Q e2 b5 e1Q c7 h3 f5+ Kd7 b6 Kc6 f6 a3 b7 a2 Bd3 Qd2 Ne2 Be7 f8Q Bf5 f7 Nf6 c8B Ne4 Bb2 c1B Na3 Qf4 Qb3 Qd7 Qa7 Bd8 b8R Bc7 Qe7 Rh5 Rf1 h1Q f8Q h2 Qff6 Rh3 Qb4 Qe6 Bc2 Rb3 Bd1 Qf7 Qh8 Qh5 Nc2 Qhh4 Rb1 a1B Ra8 Bg6 Bf5 Bh5 Rd8 Bb8 Bh7 Qg2 Qhe5 h1B Q5f6 Qfh2 Rf4 Q4g3 Rh4 Qf1 Qf3 Qf4 Qg3 B1f3 Qge1 Bfg4 Qbc3+ Kb5 Nb4 Bg6 Na6 Ka4 Qed2 B4h5 Qe1 Nf6+ Kc5 Qfg1+ Nd4 Bc2 Q1e4 Be3 Be2 Bd2 Rf1 Bc1 Bd1 Bg4 Qd2 Bh5 Bc3 Ka3 Bb2+ Ka2 Qc3 Qhf2 Qee1 Q2d2 Qb4 Qdg2 Qec3 Ne4+ Kb5 Q1h1 Qcc5 Qgh3 Nf5 Bd2 Be5 Q3h2 Qc3 Be3 Nd4 Q1g1 Kc6 Bc1 Kb6 Ng3 Kc5 Ne4+
r1B2b1b/k3NK1q/6BN/1Q1R2P1/4qRpP/3q4/q3RqbQ/Q3rQB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 g4 g3 h5 Nc3 Nf6 Nb1 Nh7 Qb3 Nc6 Qd1 Nd4 Ra3 Ng5 Ra1 Nf5 hxg5 h4 Ra3 h3 Ra1 Nh4 gxh4 Qf6 Rh2 Qd6 Rh1 Qd8 Kf2 Kd7 e4 a5 d4 c5 b4 Kc7 b6+ Kb8 b5 f5 b7 a4 e5 a3 d6 h2 d7 f3 Kg3 f2 Kf4 c4 d5 c3 d6 c2 e6 a2 Ke5 f4 e7 f3 Ke6 Qb6 e8B Ra3 Bg6 Qe3+ Kf7 Be7 d8Q Rh6 d7 Ka7 Qf8 Bb4 d8R Be1 Ne2 Ba5 b6+ Ka6 b8Q Qb3+ Rd5 Bb4 Nbc3 Bb7 Be3 c1Q Ng3+ Qc4 Qbe8 Qc2 Nf5 Qb1 Bg2 f1Q Bg1 f2 Qc1 Bc6 b7 Qfd3 b8Q f1Q Qh8 Qf2 Qf1 Qbc2 Re1 a1B Re2 Bf8 Qee5 Ra2 Qb5+ Ka7 Qhf6 Rh8 Nh6 Ra4 B2e4 Q4a2 Bef5 Re4 Bc8 Rg8 Nd1 Qcb1 Ne3 Bb2 Nef5 Qbc2 Rd2 Re1 Re2 Ba8 Ne7 Qc7 Qff5 Qb7 Qef4 Bh8 Q5e5 Qd7 Qff6 Q7f5 Qa1 Qfe4 Qf4 Bc6 Bh5 Qh7+ Qg7 Qab1 Rd8 Rd1 Ba6 Qde3 Bg6 Qed3 Qg2 Qfd4 Be3 Re1 Rf1 h1Q Qfh2 Bb7 Rf4 Qa2+ Ke8 Qb6 Bg1 Qf2 Qa1 Bf3 Rd5 Bfg7+ Kf7 Ra8 Bc8 Bf8+ Ke8 Be4 Qgh3 Qhf3 Qf1 Qf3e3 Bf7 Bg2 Bg6 Bhg7 Kf7 Qe5 Bgf5 Qee4 Bg6 Bh8+
q1q1B2R/B1PB1Qr1/1N3PR1/q2q4/3b1n1r/1N1BQ3/4N1p1/1QKq1kq1 w - - 0 1 illegal: No possible last move, all moves rejected
QBN2k2/RP3P1r/2n1n2N/1rRQ4/1R4n1/1q1R2p1/r2rB1rQ/1KBr4 w - - 0 1 legal: proof: f4 b5 e4 f5 a4 d5 axb5 g5 c4 fxe4 h3 Bg7 cxd5 Bg4 g3 Be5 f5 Bf4 gxf4 Bf3 Be2 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd6 Qe2 Qd7 Qd1 Qd8 Rh5 c5 b4 a5 d4 e5 Kd2 h6 Kc2 e3 b6 a4 f6 c4 f5 e4 b5 e2 b7 a3 d6 e3 g5 e1R g6 e2 g7 a2 Bg5 c3 d7+ Kf7 d5 Qe7 d8Q Qc5 d6 Rh7 d7 Qc6 Nh3 Na6 b8R Qg2 b6 Qf2 Qd2 Qg2 Na3 Qf3 Nb5 Rb1 Nf2 e1R Na7 Nc7 Ng4 Ne7 g8R Qb7 Nc8 Red1 Qg2 Ra5 Rg6 Rdd5 Be2 Rg1 Qh3 Rg2 Bd2 Ne8 Rhg5 Kf8 f7 h5 Rd6 h4 Nh6 Re5 Kc1 c2 Rd5 Ra8 Rd3 Rea5 Kb2 c1R Be3 Rd1 Bc1 Ng6 Qh1 h3 Qg1 h2 Kc2 h1N Qh2 Kg7 f8B+ Kh8 f6 Ne7 f7 Nc6 Nd6 Nc7 Rc5 Nf2 Qc8 Ng4 d8Q R8a6 Qe6 Ra7 Qd5 Ne6 Be7+ Kg7 Beg5 Re1 Bgf4 Rd1 Kb2 R7a6 Qe8 Nce5 Qa4 Nc6 Nc8 Kf8 Bc7 Ra7 B7f4 Ra8 Kc2 Qa6 Rb7 Qb5 Bb8 Qb4 Rb1 Rb5 Rbb3 Ra6 Kb2 Qc4 Rb4 Ra7 Qa3 Raa5 Rd7 a1R Qa4 Ra3 Kb1 Rc3 Re7 Rc2 Qa2 Ra7 Qa6 Rcd2 Qb7 Ra4 Qa8 Raa5 Ra7 Raa2 b7 Qb3+
1N1b3k/1NN1b2r/1K1BQr2/Rb2p1B1/2BR2r1/2Q1bP1P/3qR3/r3qB2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h3 g4 h4 Na6 Ke2 h5 Ra2 Nb4 Ke1 Nf6 Qa4 Nh7 Qa5 Ng5 hxg5 h4 Qa6 h3 Qa4 h2 Ra1 Nd3+ Kd1 Nf4 Ke1 Ba6 Qd1 Nh3 gxh3 Bc8 Ke2 Kf7 Ke3 Kg7 Kd4 a5 Kc5 e5+ d6 a4 b4 e3 d4 c6 f3 a3 b6 a2 g6 e2 d5 e1Q b5 g3 b7 g2 b8Q Qdh4 b6 Qh7 b7 Qg3 Qb3 Kg8 g7 Qg5 Na3 Qd3 Qc3 Rh5 Kb6 c5 d7 c4 d8R Rh8 d6 Qdd2 d7 Rh7 Nb5 Qg3 Ne2 g1B+ Ned4 Be3 Qd6 Qge1 b8B Ba6 Nc7 Bb5 Qh6 Bg5 Nc6 Ra4 Rg1 h1R Rg2 Rg1 Re2 Rg4 Qg6 Ra7 Qf5 Rh6 Qe6+ Kh7 g8B+ Kh8 Bf7 Rf6 Bg8 Qdd1 Bf4 Be7 Be3 Bh4 Bg5 Qd5 Na6 Qd3 Bd6 Qdd2 Ncb8 Rc7 Qa5 Ra7 Nc7 c3 Qb4 c2 Qc3 c1B Rb1 Ba6 Rb5 a1R Ra5 Rga4 Re8 Raf4 d8N Bb5 Nb7 Rg4 Rf8 Qf4 Rd8 Be3+ Bc5 Qd4 Rd7 Qdd2 Rd4 Bd8 Bd6 Rf7 Bh6 Bhe7 Bg5 Rff4 Bh7 Rf8 Bd3 Rf6 Bc4 Rg6 Nc5 Rh6 Bh4 Bf8 Bg5 Bf6 Nd5 Rah7 Nc7 Bd8 Nb7 Bfe7 Rh2 Rg6 Re2 Rf6
1N6/bQ2N2R/pb1KP1Nq/2QB1P2/bb4rQ/3RqrR1/2q1k1q1/3RB3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f6 axb5 f5 Qg4 e5 Qe2 Nc6 Qd1 Nd4 Ra4 Nf6 Ra1 f4 f3 Nf5 exf5 e4 Ra4 e3 Ra1 Ne4 fxe4 Bd6 Nf3 Bb4 Ng1 Bf8 Ke2 Ke7 Kd3 Kf6 Kd4 Kg5 Ke5 h5 b4 c5 g4 h3 d4 h4 d6 a6 d7 e2 d5 e1B b6 c4 d6 c3 b5 c2 b7 h2 b8N h3 b6 Bh6 b7 Ra7 Bd2 c1B Bc4 Bg3 Bd5 Be1 Nc3 Qb6 d8R Bd7 Qc2 Ba4 d7 Qe3 Kd6 f3 e5 Kf4 e6 f2 g5 f1Q g6 Qc4 g7 Bf2 Be1 Bd2 g8R Qc8 Ne4 Bb4+ Qc5 Rh7 Ne2+ Kf3 Rd1 Rh8 Rhg1 h1Q Nf4 h2 Ng6 Ke2 Rg3 Qg2 Rg7 h1Q Nf6 Bg5 Rd3 Rh3 Ng8 Bf6 N8e7 Bd4 Rh7 Ra8 Rg4 Rf3 Rg3 Qhh6 Nbc6 Ra7 b8Q Rc7 Qb7 Bg1 Nb8 Bf2 Rf8 Bg1 d8Q Bf2 Nec6 Rg7 Qh4 Bg1 Rd8 Bf2 Nge5 Rg4 Ne7 Ba3 Qcb4 Qc2 N5g6 Bb6 Qc5 Bb4 Rc8 Qec1 Rc6 Bd8 Rb6 Bd2 Rb1 Bb4 Ra1 Bd4 Rb1 Qce3 Rbd1 Bbc3 Qcb5 Ba7 Qb4 Bdb6 Qc5 Bb4
1nNn1N2/5Q1Q/B2Pp2R/R3Q2r/3Pprn1/B3B2k/r1R1b3/3bQ1qK w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 fxg5 e6 g4 Bc5 h4 Ba6 h5 Ke7 h6 Bd4 g6 Bg7 hxg7 Ke8 g5 Bc8 Kf2 Kd7 Kg2 c5 d4 a5 b4 h5 b6 h4 b5 a4 b7 c4 b6 c3 Nh3 c2 Nd2 a3 Nf4 a2 Ba6 Qe7 Nc4 Qc5 Ba3 c1N Nd6 Nb3 Qe1 Nh6 g8R Na5 g7 Ke7 g6 Kf6 Kh2 Bd7 Rc8 Kg5 g8Q Kg4 g7 h3 Qf7 Ba4 Ng6 Bd1 g8Q Qc1 Rc2 Nac6 Nc8 Nd8 Qgh7 Qg5 Kg1 h2+ Kg2 Qe3 Nf8 Qc1 Rb1 a1R Rb5 Ra2 Ra5 Nbc6 b8Q Qa1 Qbc7 Nb8 b7 Be2 Rf1 h1B+ Kg1 Qc1 Qe5 Kh3 Rf6 Bhf3 Rg6 Bh5 Kh1 Ng4 Rh6 Bd1 Rc6 Rf2 Rc4 Rf4 Rc2 Nbc6 b8B Qb1 Bc7 Nb8 d6 Rg8 Rd5 Rg7 Be2 Qa1 Qa5 Nf6 Bc1 Rg5 Be3 Qc1 Qc3 Ra2 Ba6 Qa1 Ba5 Bg4+ Qe1 Rgf5 Qg1 Qf1 Bb4 Bd1 Ra5 Qe1 Rg6 Qf2 Ba3 Qf1 Qhg7 Bhe2 Qh7+ Rh5 Rh6 Qf2 Qe1 Ng4 Ra4 Qg3 Ra5 Qg1+
2rQQ3/r1R4N/1n2Np1B/4N3/PBNb2Kp/1bqR1P1R/2q2k1n/1B3b2 w - - 0 1 illegal: No possible last move
R1Q1N1nb/K2P4/2P5/kBn2R2/2QRp2b/3Nn1Qq/p1Q1r3/3Br1qB w - - 0 1 legal: proof: e4 d5 d4 g5 h4 c5 dxc5 b5 hxg5 f6 a4 d4 axb5 Bf5 Bf4 Be6 Be5 Bd5 exd5 fxe5 Kd2 Kd7 Kd3 Kc7 Kc4 h5 f4 a5 b4 e4 g4 e5 d6+ Kb7 g6 a4 f5 h4 b6 Ka6 b7 h3 d7 h2 g7 e3 f6 a3 c6 e2 f7 e1B g5 d3 c7 d2 c8Q Bd6 f8R Kb6 g6 Rh6 b5 Bb4 Nc3 Ka5 b6 Rh8 Nf3 Qh4+ Ne4 Qe7 Nf6 Ra6 Ne8 Nf6 g8B Bc5 g7 Nd5 Rf5 Nc6 b8Q Nd8 b7 Ka4 Qbc7 Bg3 b8Q Qf6 Ne1 Bh4 Nd3 Ne7 Bd5 Bd4 g8B Qb6 c3+ Ka5 Qc2 d1N Bgf7 Bg1 Bh5 Bd4 Rg1 h1Q Rg4 Qh3 Bh1 Ng8 Rgf4 Be3 Rd4 Ne6 Kd5 e4 c4 Bf4 c5 Be5 c6 Bef6 Qg3 Nc5 Qbb7 Qb1 Qbb3 Ne3+ Kd6 Rb6 Qbc4 Rb2 Kc7 Qd1 Bfe2 Qg1 B5f3 Ra2 Kb8 Rh6 Ka8 Bh8 Ka7 Rb2 Bh5 Rb1 Bf1 Re1 Bd1 Re2 Rb1 a2 Rb8 Re1 Ra8 Rg6 Bfe2 Rg4 Bf1 Rf4 Bfe2 Rf2 Qd5 Nc4 Ne5 Nb2 Bb5 Nc4 Nd3 Ne3 Qdc4 Rfe2
3b2k1/6P1/b4r2/N1r2p1Q/1pb1B1Q1/NBNnP1B1/K1R1nRR1/5Nqb w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 g5 b4 axb4 h4 c5 hxg5 d5 cxd5 Na6 d4 Nb8 dxc5 Qf6 Qd4 Qb6 Qd1 Qd8 Kd2 b5 Kc2 h5 Kb3 f5 a4 Kf7 g4 h4 e6+ Kg7 g6 h3 c6 h2 c7 Rh7 d6 Rh4 d7 Rh7 g5 Qe8 d8N Na6 a5 Ra7 e7 Nh6 Nc3 Ng4 Ka2 Nh6 Bg2 Rb7 Nc6 Nf7 Nf3 Ne5 Nd2 Nd7 Rf1 h1B Rf2 Nb6 Be4 Bg2 Nf1 Rh5 Bf4 Nc5 a6 Nd5 e3 Bh1 a7 Rh6 a8N Kg8 g7 Nd3 Qg4 Rf6 Bg3 Qg6 e8Q N5f4 Na5 Ne2 Nb6 Rb8 Re1 Ba6 Nbc4 Rc8 Na3 b3+ Kb1 b2 Ka2 Qh6 Qeh5 b4 Rd1 Bd6 Rd2 Be7 Rg2 Bd8 Rf2 Rb8 c8R Qg6 Rc5 Rc8 Rc6 Kf7 g8B+ Kg7 Bb3 b1B+ Ka1 Bc2 Ka2 Bd1 Rc4 Kg8 Rc2 Qg7 g6 Rc5 Rg2 Qh7 g7 Qh8 Qhg5 Qh2 Q5h5 Qg1 Rb2 Nd4 Rbf2 Bf3 Nd5 Ne2 Rc3 Bc4 Rc2 Ba6 Nc3+ Bc4 Bc6 Bfd5 Ba8 Ba6 Bb7 Be6 Be4 Bec4
q1n1RR1r/1BKP2p1/2R4n/1bN5/b1QrQr1k/P1Np4/1R1B1r2/2N1B3 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 gxh5 Rh7 b4 axb4 d4 Rh8 Bd3 d5 Bf1 c5 Nh3 e6 Ng1 Be7 c3 Bf6 dxc5 d4 Qg4 d3 Qd1 Bd4 cxd4 Qg5 Qb3 Qh4 Qd1 Qd8 Kd2 Kf7 Ke3 Kf6 Kf4 b5 h4 b3 d5 b2 a3 b4 d6 b3 d7 Ra5 c6 Rb5 c7 Rh7 h6 Bb7 c8Q Bc6 h5 Re5 Bd2 Qc7 Nc3 b1R Nge2 b2 Rh2 Bb7 Qa4 Ba8 Nc1 Bg2 Qe4 Qd6 Qcc4 Bh1 Bg2 Rh8 h7 Qc7 h6 Qd8 f3 Kf7 f6 Rd5 Ra2 Rd6 Ke5 Rd4 f4 Ra1 f5 b1B Rb2 Ra2 Rb6 Bc2 Rc6 Ba4 Bf3 Bb5 Be1 Qa5 Rb2 Qa8 Bg2 Na6 Bf3 Nc7 Bg2 Nd5 Kd6 Nde7+ Kc7 Nc8 Bf3 Kf8 f7 Ke7 f8N e5 Ne6 Kf6 Nc5+ Kg5 f6 Bg2 f7 Bh1 Rb3 Rf2 f8B Ba4 Bg2 Rf4 Bd2 Kh4 Rb2 Bb5 N5b3 Ba4 Bb4 Bb5 Nc5 Ba4 Qed5 e4 Qf5 e3 Qe4 e2 Bf3 e1R Ba5 Nge7 Bg2 Rf8 h8R Re2 h7 Nf5 Bb4 Rd8 Re8 Nh6 h8R Rf2 Rhf8 Bb5 Be1 Ba4 N3e2 Bb5 Bbd2 Ba4 Nc3 Bb5 Bh3 Bf3 Be6 Bd1 Bd5 Bda4 Rd6 Kh3 Bb7 Kh4 Rc6 Kg5 Rf7 Bc2 Ree6 Rh8 Rf8 Kh4 Ree8 Bca4
6RR/1p3nnb/4b1kp/N1NQ4/q1N2B2/Q2PB3/bKrP3b/NR1Qr3 w - - 0 1 illegal: No proof kernel
n2NQBN1/6N1/q1BbQ3/1r2Rqp1/4P1q1/4bPB1/KRp3kb/QB4n1 w - - 0 1 legal: proof: c4 b5 f4 f5 a4 e5 axb5 d5 fxe5 dxc4 Qb3 f4 Kd1 f3 Kc2 f2 Kc3 Ba3 Qd1 Be7 Kc2 Bf8 Nh3 a5 Ng1 Ra6 Nf3 Rf6 Ng1 Rf3 gxf3 g5 h4 Be6 h5 Bf7 Bg2 Na6 Bf1 Bg6+ hxg6 Nb8 e4 Ke7 b4 Ke6 Kb2 c5 d4 h5 g7 c3+ Ka2 h4 b6 a4 b7 c4 b5 h3 b6 c2 Nc3 h2 Ba3 c1B Nh3 Qc8 Nd5 c3 Nf6 Bd6 Bd3 f1Q Bb1 Nh6 Ng8 Nd7 b8Q c2 b7 Be3 Bb4 a3 d5+ Kf7 e6+ Kg6 e7 Kh5 e8B+ Kh4 Rg1 h1Q Nf4 Ng4 Ne6 Nb6 Bc6 Kh3 Qc1 Bh2 d6 Na8 d7 Qhg2 d8N Nf2 Bf8 Qa6 Rd1 Qg1 Rd5 Qg4 Re5 Kg2 Qd6 Qf5 b8B Nh3 Qd7 Ng1 Qe8 Rh6 Kb3 Rh7 Qb2 Qf7 Rb5 Kf2 Bg3+ Kf1 Ra2 Qf4 Nf6 Kg2 g8Q Rb7 Ng7 Qcg4 Qge6 Qff5 Ng8 Rb6 Qd4 Rb8 Qa4 Rb7 Rb2 a2 Ka3 Rb6 Re5 Rb5 Rb4 Bc5 Kb3 Bd6 Qa3 a1B Qb2 Qb7 Ka2 Qb6 Qc3 Bb2 Rb3 Bc1 Qa1 Be3 Rb2 Qa6#
1k2N3/bB2N3/1q1PQB1R/2P2Q2/q1NprbR1/n1rb4/KN1p3R/2qB4 w - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 b5 f4 e5 fxe5 d5 a4 c4 axb5 Na6 d3 Nc7 Ke2 d4 Ke1 Nd5 exd5 cxd3 Kd2 Kd7 b4 Kc7 c4 a5 h4 f5 c5 g5 b6+ Kb7 d6 g4 h6 g3 h5 f4 b5 g2 h7 a4 h6 a3 e6 a2 e7 f3 e8B f2 Ne2 g1Q Na3 Ra6 Nf4 Qe7 Qg4 Qg2 Qe6 Bd7 Be2 f1Q Nc4 Ra3 Rh2 Qg3 Bd1 Bc8 Bc6+ Kb8 b7 Ka7 b8N Qfg1 Na6 Nf6 Nc7 Kb8 b6 Ne8 b7 Qd7 Be4 Rg8 h8Q Rc3 h7 Bh6 Qhe5 Qa4 h8R Rg4 Q5f5 Qh4 Rb1 a1B Rb2 Bg5 Rh6 Bd8 Rc2 Bb2 Rg2 Qe7 Bef3 Rh4 Rg4 Qed7 Bh1 Qdc6 Bhf3 Qb6 Be4 Ka7 b8N Ba6 Nc6+ Kb7 Ne7+ Kb8 Bb7 Qf1 Ncd5 Nc7 Nf6 Nb5 Ne8 Qg1 Ng2 Ba3 Nb2 Bb4 Ne3 Na3 Nec4 Bb5 Rg8 Rf4 Rg4 Re4 Bf3 Qe3+ Kd1 Qg5 Be3 Ba6 Kc1 Qf4 Bd1 Ba5 Ng8 Bg5 Ne7 Qf1 Bd2 Bf4 Be3 Nb5 Kb1 Na3+ Ka2 d2 Rc1 Bb5 Bf2 Ba6 Bh4 Bb5 Bf6 Qg1 Ne5 Bd3 Nec4 Qe1 Bf3 Qg1 Re1 Qh1 Re2 Qc1 Reg2 Qbb4 Rgh2 Bb6 Be2 Ba7 Bd1 Qb6
k1r2r2/N1q1b3/1qP1N3/1P2B2B/2QBppQ1/1NR4r/2Rn4/qN1KQ1b1 w - - 0 1 legal: proof: e4 c5 g4 b5 d4 cxd4 a4 h5 axb5 d3 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 f3 e5 Ra6 d5 Ra3 d4 Ra1 Bb7 f4 Bd5 exd5 e4 Bg2 Nd7 Bf1 Ne5 fxe5 Qd7 Be3 Qc8 Bc1 Qd8 b4 Kd7 c4 Kc8 h4 Kb8 c5 f5 e6 a5 e7 g5 e8Q g4 b6 f4 h6 g3 b5 a4 h5 a3 h7 a2 b7 g2 h6 Bd6 Be3 Be7 d6 Qc8 d7 Bf6 d8N Qg4 Qh5 Qf5 Qhg4 Qh5 Rh3 Qf7 Nf3 g1B Be2 Bg5 Ne6 Be7 Nfd2 Nf6 Nb3 Rf8 h8B Ne8 h7 Nd6 Be5 Ka7 b8N Nc4 h8Q Nd2 Qhg8 Kb7 Na6 Rac8 Nb8 Ka8 Nc6 Qg6 Na7 Qf6 Nd8 Qb6 c6 Qc7 Qc4 Qb6 Na3 Qc7 Rc1 a1Q Nb1 Qaa5 Rc2 Qab6 Qc1 Nf3+ Kf1 d2 Rg3 d3 Qe1 d1R B3d4 d2 Ne6 Rc1 Rh3 d1Q Rg3 Qd3 Rh3 Qc3 Bd1 Nd2+ Ke2 Qb2 Rhc3 Bh2 Kf2 Qa1 Bf3 Bg1+ Ke2 Qa4 Rb2 Rc2 Kd1 Qa1 Ra2 Nf1 Rb2 Rh2 Rbc2 Rh7 Qh3 Rh6 Bh5 Nd2 Qg4 Rhh8 Bg6 Rh1 Bh5 Rh3
3b3k/K1N3r1/N1P1rB1p/1qN5/4q2B/3nPBp1/QQ3bRN/1Qb1Rq2 w - - 0 1 legal: proof: f4 b5 g4 c5 d4 f5 dxc5 e5 fxe5 f4 a4 bxa4 h4 g5 Ra2 Ba6 Ra3 Bd3 Ra1 Bf5 gxf5 Bd6 Qd2 Be7 Qd1 Bf8 Kf2 g4 Qd5 Nc6 Ke1 Nd4 Qd6 Ne6 Qd1 Ng5 hxg5 Qc8 Qd5 Qb8 Qd1 Qd8 Kd2 Kf7 Kd3 Kg7 Kd4 a5 b4 d5 c4 h6 f6+ Kh7 e6 g3 c6 f3 e7 a3 Kc5 a4 e3 d4 b5 a2 b6 f2 f7 a3 b7 d3 b8N d2 g6+ Kg7 c7 Qd7 Kb6 Ra5 c8Q Rg5 c5 Rh5 c6 Rc5 Nf3 Re5 Nh2 Qd3 Qb7 Nf6 Be2 f1Q Nc3 Qb5+ Ka7 Rg8 e8N+ Kh8 Rg1 Be7 f8B Ne4 Rg2 Nc5 Na6 Nd3 Ne4 Re6 Nec5 Rg7 Nec7 Bd8 Bb2 Qf5 Qb8 Qe4 Qb1 d1Q Bf6 Qc1 Qb2 Qf1 Re1 a1B B8e7 a2 Qb1 Bd4 Bf3 a1B Bh4 Bdc3 Bef6 Qa5 Q8b2 Qb5 Rd1 Be1 Rc1 Kg8 Rd1 Bf2 Re1 Rf7 g7 Rfe7 Qc3 Bb2 Qa3 Bc1 Qaa1 Kh7 Qab2 Kg6 g8Q+ Rg7 Qf8 Kh7 Qf7 Re7 Qfb3 Kh8 Q3a2 Re6
K4N1k/1R1rrrN1/RP2q2p/n1pbQ3/1B4b1/BQ1NB3/1P3qR1/2N1b3 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f7+ Kd7 cxd3 Qe8 d4 Qd8 d5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Bg7 h4 Bb7 h5 Bh6 f5 Bf8 f6 Bc8 g5 Nc6 Bd3 Ne5 Bf5+ gxf5 Rh2 Qe8 Rh1 Ng6 hxg6 Qd8 Kf2 a5 Ke3 e5 d4 a4 g7 a3 g6 e4 d6 Ke6 d5+ Ke5 d7 a2 b6 c6 d6 Nh6 g8R Ra7 g7 Bb7 Qe2 Qe7 d8B Qe8 d7 Bb4 f8N Nf7 Na3 Nd6 f7 Be1 Nc2 Qe6 Nb4 h6 Rh2 Bc8 Be7 Nb7 d8N Na5 Rg2 Rh7 Qh5 Rd7 Ne2 Bb7 Bd2 Bc8 Nc1 Bb7 Bd6+ Kf6 Kd4 f4 Kc5 e3 Nbd3 e2 Be3 f3 Rh8 f2 g8Q Rg7 Rh7 f1B Qd5 Re7 Qb3 Ba8 Qh8 Rd7 Rg5 Bh3 Rg2 Qe8 Nde6 Bg4 Kd4 Re7 Bb4 Qc8 Kc5 Qe8 Rb1 a1R Kd6 Ra2 Ra1 Ra4 Ba3 Rd4+ Kc5 Rdd7 Bb4 Nc4 Ra6 Qc8 Ng6 Na5 f8B Rf7 Bd6 Rfe7 Qe8 Rgf7 Ng7 Bh4 Nf8 e1Q Ba3 Qf2 Bb4 Ra7 Ba3 Qe6 Qb8 Red7 Qe8 Rfe7 Qh5 Rac7 Qe5+ Kf7 Bb4 Kg8 Be1 Re8 Bc3 Rdd8 Nh5 Qf3 Rd7 Be1 Ng7 Qf2 Be7 Kh8 Bd2 Qg8 Kd6 Ra7 Bc3 Bb7 Kc7 Qe6 Ba3 c5 Rf7 Rd4 Bcb4 Rf4 Rd7 Re7 Kb8 Bd5 Rc7 Rb7+ Ka8 Rf3 Rc8 Rf4 Rb8 Rbd7+ Rb7 Rff7
2QN3n/2b2P2/1N1nN3/3rNqRp/1p1Rq1q1/3R1B2/kP1B1QnB/5K1b w - - 0 1 legal: proof: c4 b5 a4 g5 h4 gxh4 e4 a5 d4 f5 exf5 c5 dxc5 d5 cxd5 b4 Ba6 Ra7 Bc4 Rb7 Bf1 Rb5 axb5 Qd7 Qf3 Qc7 Qd1 Qd8 f4 Kd7 g4 e5 f6 h5 f5 h3 g5 e4 d6 e3 f7 h2 f6 Ke6 b6 a4 c6 e2 g6 a3 d7 a2 c7 Rh7 b7 Nc6 b8B Bd6 g7 Na5 Bg2 Nb7 Nc3 Nh6 g8R Qf8 d8N+ Ke5 Bd2 Kd4 Nf3+ Kc4 Kf2 e1N Qe2+ Kb3 Rd1 a1Q Nd5 Ka2 Ne5 Rg7 Qe3 Rg5 Bf3 Ng2 Kf1 Qc1 Qe2 Qc4 Nb6 Qg4 Qf2 Rf5 Rg1 h1Q Rg5 Be6 c8Q Bd5 Bc7 Qhh4 Bb8 Bc7 Rh1 Qc5 f8N Nf7 Nfe6 Nh8 f7 Nd6 Rh3 Qe4 Be3 Bc6 Rd4 Qhg4 Bd2 Qa5 Bd1 Qc5 Rhd3 Ba8 Bf3 Qc2 Nec6 Rd5 Ne5 Qef5 Re3 Qce4 Red3 Bb7 Nc5 Qe3 Nba4 Nb5 Bc1 Bd6 Nec6 Nf4 Bd2 Re5 Nb6 Ba8 Be2 Bb7 Na5 Bh1 Bf3 Rd5 Nce6 Ng2 Nac6 Qee4 Bc7 Bc5 Bh2 Bd6 Ne5 Bc7 Bc3 Nd6 Be1 Nf4 Bd2 Ng2
1n1Rr1b1/4pR2/qp2rR2/1BP2KRP/1NQ2Qq1/1q1Qb3/B6b/2N3kN w - - 0 1 legal: proof: d4 c5 dxc5 a5 f4 f5 b4 h6 bxa5 Na6 e4 Nf6 exf5 Nb8 g4 Nh7 g5 Nf6 Be3 Ng8 f6 Kf7 Bc1 Ke6 f5+ Ke5 Be3 Nc6 Bd2 Kd5 g6 Ne5 Bf4+ Kc6 Bg5 Nf7 gxf7 hxg5 Kd2 Kd5 Ke3+ Ke5 c4 d5 h4 g6 a4 g4 h5 g5 c6 g3 c7 g2 a6 b6 a5 g4 a7 g3 a6 Qd6 Ra5 Bg7 f8R Qe6 f7 Nh6 f6 Qd6 Nc3 Be6 c8Q Ng8 Nce2 Bd7 Qd3 Qb8 Nh3 g1Q+ Nf2 g2 Nc1 Be6 Rd8 Rh6 f8R Qb7 f7 Nf6 Be2 Qd1 Rf1 Nd7 Nh1 Qb3 Rf6 g1B+ Kf3 Rb8 a8N Be3 a7 Qa6 Nc7 Bh8 a8B Rg6 Nb5 d4 Bd5 Ra8 Qc6 Nb8 Nc3 Bg7 Qb5 Bgh6 Qa4 Bhf4 N3a2 Bh2 Nb4 Rh6 Rfe8 Rg6 f8Q Bg8 Rf7 Rh6 Kg4 Re6 Rd6 Qd1 Red8 Qb3 Qg6 d3 Qb5 Kd4 Kf5 Re4 Rdf6 d2 Qfh6 d1Q Qf4 Kc3 Qgg3 Kd2 Qh3 Ke1 Qc5 Bd4 Qd3 Be3 Bf1 Qe2 Qcd4 Qed1 Be6 Qe2 Re5 Qf3 c5 Qg2 Q4c4 Qh3+ Kg6 Qg4+ Rg5 Re5 Bd7 Re6 Bb5 Nc6 Bg2 Rc8 Bd5 Nb8 Rd6 Re8 Rd8 Qgd1 Kf5 Qe2 Bf3 Kf1 Bg2+ Kg1 Bf3+ Qg2 Bd1 Qba3 Bb3 Q3a4 Ba2 Qb3 Qe2 Qg3 Qed3 Qg4+
3K2Q1/pPbRnB1R/QB1NRp1Q/2RP4/4r1r1/1NBr2q1/2k2b2/2b2q2 w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Ke7 g5 Ke8 g6 Bf8 h4 f6 Nc3 Be6 Nb1 Bf7 gxf7+ Kd7 Ra6 g6 Ra1 g5 Nc3 g4 Ra5 Na6 Nb1 Nc5 Ra4 Ne4 Ra1 Ng5 hxg5 Qb8 Ra5 Qc8 Ra1 Qd8 Kf2 Kd6 e4 Kc5 d4+ Kb4 g6 c5 e5 h5 e6 g3+ Kf3 h4 Ke4 g2 Kf5 c4 b6 c3 d6 c2 g7 Kb3 d7 f3 e7 f2 Ke6 h3 e8R h2 b7 Qc7 b8B Rh4 d8R Ne7 g8Q Nd5 Ra5 Rh7 Qd3+ Qc3 Kd7 Ba3 Rc5 Rh8 f8Q Rh5 Nf3 g1B Ne5 Rh8 Nc4 Rh4 Be3 c1B Be5 Rh5 Nd6 Rh6 Nd2+ Ka2 b4 Kb2 b5 Rh4 b6 Re4 b7 Ne7 Qa6 Kc2 Bc4 f1Q Nb3 Bf2 Bf7 Rc8 d5 Rc6 Rb5 Rcc4 Bb6 Qg3 Rc5 Bf4 Bc3 Bac1 Qh6 Ra4 Rg1 h1R Rg2 Rh3 Rh2 Rad4 Kc7 Rh4 Rd7 Rd3 Kd8 Rg4 Rh1 Ng6 Re6 Ne7 Qhf8 Be5 Rh7 Bef4 Qh6 Be5 Nc4 Bb8 Nd6 Bc7+
2Br1rK1/3bRQ1P/3R2N1/k1NR3N/B5n1/P2Q1p1n/pB2rb2/3bn1N1 w - - 0 1 illegal: No possible last move, all moves rejected
Q1r4K/1B2RbN1/2PpQP1n/BN5N/rqQ1Rr2/1B1r2p1/b1rN1k2/8 w - - 0 1 legal: proof: f4 b5 e4 f5 exf5 c5 h4 g5 d4 cxd4 a4 Na6 f6 Nc7 axb5 Ne6 g3 Bh6 f5 Nf4 gxf4 g4 Nh3 Bb7 Ng1 Bg5 hxg5 Bc8 Ke2 Kf7 Kd3 h5 Ke4 a5 Ke5 g3 c4 h4 b4 e6 c5 a4 c6 d3 g6+ Ke8 f7+ Ke7 f8N a3 b6 h3 b5 h2 g7 a2 f6+ Kf7 b7 d2 b8Q Ra6 b6 Ra8 f5 Nh6 g8B+ Ke8 f7+ Ke7 b7 Ra3 Qg4 d1R Nf3 Qe8 Bd2 Rd3 Nd4 Qd8 Nb5 Rc1 Ba5 Rc2 Nd2 Qb6 Re1 a1R Nh7 Ra4 f8N Rf4 Rg1 h1B Nf6 Bd5 Nh5 Ba2 Qa8 Ra4 Re4 d6+ Kf4 e5+ Kg5 Bd7 Kg6 Bde6 Kg7 Bf7 b8Q Qd4 Ne6 Qb4 Rd4 e4 Qc8 e3 Re4 e2 Bh3 Be8 Re1 Bg6 Bf7 Rf8 Bg8 Bf7 Kh8 Rd8 Qca6 Rc8 Neg7+ Bfe6 Rf1 e1R Qg6 Re2 Re1 Rf2 Bf1 Rf4 f6+ Kf8 Qf5 Bf7 R1e3 Bg6 Bb3 Be8 Rc4 Kf7 Qe6+ Kg6 Rce4 Kg5 Q6a7 Kh4 Qaf7 Kg5 Qc4 Kg4 Re7 Kh4 R3e4 Kg4 Be2+ Kh3 Qfe6+ Kg2 Bg4 Rd8 Qed5 Kf2 Bc8 Bg6+ Qg8 Be8 Bb7 Rc8 Qge6 Bf7+
kbn3n1/BR5n/1b6/B3P1pQ/pQR1Q2B/Q1n3N1/2qNbP2/1r2NK2 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 f5 axb5 e6 gxf5 Ba6 c4 Bc8 cxd5 Be7 d6 Bb7 d7+ Kf7 d5 Bf8 d6 Bc8 h4 a5 h5 g5 Bg2 Ra7 Bd5 exd5 Bf4 Ra6 Be3 Rc6 Bc1 Rc3 Bf4 Kf6 Bd2 Re3 Bc1 Re7 Rh4 Rg7 Rh1 Rg6 hxg6 Bg7 Qd2 Bh6 Qd1 Bf8 b4 Ke5 e4 c5 g7 h5 f6 a4 b6 h4 f7 c4 b5 c3 b7 c2 b6 h3 Qh5 d4 Kf1 h2 Nd2 d3 Rb1 Qe7 d8B Nc6 b8Q Ba6 b7 Qc7 d7 Kd6 Ngf3 Nce7 e5+ Kc6 Ne1 Nc8 Rg1 h1N Rg4 Bc5 f8Q Ba7 Qa3 Bb5 Qa8 Bb8 Rc4+ Kb6 Be7 Rh7 d8B Ng3+ Kg1 Ne4 Bc5+ Kc6 Kf1 Nef6 Rb3 Rh6 Rbb4 Nh7 Ba7+ Kd5 Rb3 Rb6 Rb1 Qc5 Rbb4 Kc6 Rb3 Nge7 g8N Ba6 Nf6 Ng8 Nfe4 Rb4 Ndf3 d2 Ng3 d1N Ba5 Nc3 Bf4 c1B Rb1 Be3 Nd2 Kd7 Rb3 Qc6 Rb1 Bb6 Rb2 Qg6 Rb1 Qc2 Rb2 B8c7 b8Q Kd8 Qbb7 Bb8 Qe4 Rb5 Qab7 Rb3 Ra2 Rb1 Rb2 B6c7 Qbb4 Bb6 Ne2 Bb5 Bg3 Kd7 Bh4 Kd8 Rd4+ Kc7 Rb3 Bc6 Ng3 Kb7 Rc4 Ka8 Qf4 Bb5 Qe4+ Nd5 Rf3 Ba6 Rf7 Bb5 Rb7 Nc3 Qef3 Bc6 Qe2 Bf3 Qe4 Be2+
Q6R/1bR2r1P/5n1N/p1R1P2K/B1n2Q1b/R4p1b/1N1QBNk1/n1b4q w - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 h5 gxh5 b4 d6 b3 d5 Bb7 Be3 Qh4 axb3 Bc8 b4 Qe7 b5 Qd8 f4 a6 Bd4 exd4 e4 Be6 e5 Bd7 e6 Bc8 Bg2 a5 Bh3 Ra6 Bf1 Rc6 Bd3 Rc2 Bf1 Rg2 Qc2 Rg5 Qd1 Re5+ fxe5 Rh6 Qg4 Rh7 Qd1 Rh8 Ke2 f5 Kf3 g5 h4 c5 b4 c4 e7 Kf7 e8B+ Kg7 h6+ Kh7 d7 c3 b6 d3 b7 f4 Kg4 f3 b5 d2 d6 c2 b6 c1B h5 Na6 b8Q Nb4 b7 Nc2 Na3 Be7 Nc4 Na3 Nb2 Nc4 Qa4 d1B Qa8 Bc2 b8R Be4 Ra3 Beb7 Be2 Qc7 Nh3 Nf6+ Kf5 g4 Nf2 g3 Re1 Bd5 Rb5 g2 Rc5 g1N Rd1 Bcb7 d8Q Rf8 d7 Rf7 Rd2 Qc8 Kg5 Be6 Kh4 Bf5 Rc2 Bh3 Qb4 Qc7 Qd2 Qd6 Qf4 Qd1 Rc7 Qf1 Kg5 Qg2+ Kh4 Qh1 Kg5 Kg8 h7+ Kf8 Kh4 Kg7 h6+ Kg6 h8R Bd6 h7 Be7 Bf1 Ne2 Rc5 Nd4 Be2 Nb3 Rc7 Nb6 R2c5 Na1 Qa4 Kf5 Qf4+ Ke6 Kg5 Nc4 Kh6 Ne4 Kh5 Bh4 Qdg5 Qe1 Qd2 Qh1 Qge3 Kf5 d8N Re7 Ba4 Nf6+ Kh6 Rd7 Nf7 Re7 Ne4 Kg4 Nf2+ Kg3 Qf4+ Kg2 Kg6 Ng4 Nh6 Rf7 Kh5 Nf6+
rQ2B1qb/1R5p/1RK4P/N4brQ/4rn1b/Qp2BB2/2P3rR/R1N2k2 w - - 0 1 legal: proof: d4 b5 e4 c5 b4 e5 dxe5 f5 a4 cxb4 axb5 Kf7 Ra6 Ke7 Ra1 Ke8 exf5 Qf6 g4 Kd8 f4 Qc6 f6 Qb6 g5 Nc6 f5 Kc7 g6 Nd8 Na3 Nf7 gxf7 Kb7 Nb1 Qd8 Bb2 Kb8 Bc1 Kc7 Kf2 Kb6 Ke3 Kc5 Ke4 a5 h4 g5 h5 g4 b6 a4 h6 a3 e6 a2 e7 g3 e8B g2 b7 b3 b8Q Be7 Ne2 g1R f8R Rg2 f7 Bh4 f6 Ne7 Na3 Rhg8 Nc4 Ng6 Rh2 Nf4 Na5 d5+ Ke5 d4 Be3 R8g3 Nc1 Bf5 Qh5 Rg5 Be2 Qc8 Bf3 Qd8 Rb1 a1B Rh8 Qc8 f8R Bb2 Rf7 Ba1 Bec6 Qg8 Rb7 Bc3 Bb5 Kb4 Kd6 d3 f7 d2 f8Q d1R+ Kc6+ Rd6+ Kc7 Ba1 Be8+ Kc3 Rb6 Rd4 Kc6 Re4 Qa3 Bb2 Bf2 Kd2 Ra1 Bf6 Be3+ Ke1 Rb7 Kf1 Rb6 Qg7 Rg8 Qf7 Rg7 Qg8 Rgb7 Bh8
2nb2Rn/1QN3pb/3P3Q/p2Q1b1K/B1R1Q2q/1rN2N1k/3nPB2/4R1n1 w - - 0 1 legal: proof: b4 a5 g4 b5 f4 d5 c4 h5 cxd5 e5 gxh5 exf4 a4 Be7 axb5 Be6 b6 Bc8 b5 Ra6 bxa6 Bf8 Kf2 Ke7 Kf3 Kf6 h4 Kf5 d4 c5 h6 f6 b7 c4 d6 c3 h5 c2 d7 Ne7 h7 Nbc6 b8Q Ng6 d5 Be7 h6 Na7 Be3 c1N d6 Nd3 Nc3 Nf2 Ra4 Nh3 Bg2 Rf8 Bc5 Nh8 Rc4 Kg5 Qb6 Kh4 Qd5 f5 Qbb7 Bg5 Qe4 Qf6 d8N Be6 Nc6 Nc8 a7 Bg8 a8Q Qd4 Nb8 Bd8 Na6 Rf7 Qba7 Rb7 Nc7 Rb3 Qad5 Qf6 Qab7 Qg5 Bf1 Qe7 Kg2 Kg4 Nf3 Ng1 Bf2 Qg5 Kh2 Qh4+ Kg2 Nf7 h8R Bh7 Rg8 Nh8 Qee6 Qe7 Kh2 Qf6 Bg2 Qd4 Ng5 f3 Qee4+ f4 Bh3+ Kh5 Bf5 Qf6 Bg6+ Kg4 Be8 Qd4 Ba4 Qf6 Ba7 f2 Nf3 f1N+ Kg2 Nd2 Bf2 Nh3 Rf1 Ng1 Re1 Qh4 Bg3 Bf5 Kf2 Kh3 h7 Nf7 h8Q Bh7 Ne5 f3 Ke3 f2 Nf3 f1B Bf2 Bg6 Qh7 Nh8 Qh6 Qh5 Kf4 Bh7 Rd1 Bg2 Re1 Qh4+ Ke3 Bf1 Kd4 Kg2 Ke5 Kh1 Ke6 Bh3+ Ke5 Bg4 Kf4 Kg2 Qf6 Qg3+ Kg5 Bgf5+ Kh5 Kh3 Qh6 Qh4+
nr1R4/PNB4B/KR1N1kB1/1RR1Np2/2n3P1/1n2QQ1b/2bp4/q1b4b w - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 h5 b4 e5 fxe5 a5 g4 axb4 Be3 g5 Bc1 Ra6 h3 Rg6 gxh5 g4 Bd2 g3 Bc1 Rg4 hxg4 Bd6 Bh6 Be7 Bc1 Bf8 Kd2 Ke7 Kd3 d5 a4 f6 c4 d4 e4 g2 h6 b3 h7 b2 c6 b4 e6 b3 a5 Qc7 a6 Qd8 c5 Qa5 Kc4 d3 e5 Qc7 Kb5 Qd6 c7 Nh6 c6 Nf5 a7 Ng7 Nf3 g1N Rh6 Na6 Nbd2 b1B Ne4 b2 Ra5 Nb4 Nc5 Qd8 Nb7 Bc2 Bf4 d2 Bd3 Nd5 Ka6 b1B Rb5 Nb6 Rg6 Bd7 c8R Ne2 c7 Nd4 Bh2 Rg8 h8R Nb3 Rgh6 Qe8 Bh7 f5 Rd8 Bc6 c8Q B6e4 Qc3 Qc6 Qe3 Qc3 Rdd5 Qd4 Rdc5 Ne8 Qh1 Nd6 Bf4 Ke8 e7 Kf7 e8N Ndc4 e6+ Ke7 Qh3 Na8 Ne5 Bg2 Qhf3 Bh3 Ned6 Bg7 Bg3 Rb8 Rd8 Qc3 Bg6 Kf6 e7 Be4 e8B Bbc2 Bef7 Qd4 Bg8 Qb2 B8h7 Bf8 Qfe2 Bh1 Q2f3 Qa1+ Na5 Bg7 Nc8 Qf1 Nd3 Qa1 Bc7 Bh8 Be8+ Kg7 Rhb6 Kf8 Nd6 Bb2 Ne5 Ke7 Beg6 Ba3 Nab7 Ke6 Qfe4 Kf6 Q4f3 Bc1+
6rk/1NQ2q2/K1QQP1q1/1qqR1p2/2p2B1b/3N2BP/2R1BbN1/1nN2n2 w - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 b5 axb5 d5 cxd5 g4 Qb3 a6 Qc2 Qf6 Qd1 Qd8 Na3 h5 Qb3 a5 Qc2 g3 Qd1 Bh3 Rb1 Ra6 Ra1 Rg6 Nb1 Rg5 hxg5 h4 Ra3 Bg4 Ra1 h3 Ra2 h2 Ra1 Bh3 gxh3 Rh7 Ra4 Rh6 Ra1 Rh8 d4 c5 Kd2 f5 Kd3 Kf7 Kc4 Kg7 e4 a4 b4 g2 g6 f3 b6 f2 Kb5 c4 e5 a3 e6 a2 b7 Na6 b8B Rh6 d6 Rh8 d7 Nf6 d5 Ne4 d6 Qg5 d8Q Qf4 d7 Rg8 Nd2 Nac5 Be2 f1Q Qc7 Be7 d8N Qe3 Ngf3 g1B Nb3 Qff2 Ne1 Ng5 Qdd6 Qff4 Ng2 Nb7 Ka6 Qff2 b5 Qfg3 b6 Na5 b7 Bf2 Rd1 h1Q Rd5 Qc5 Bf4 Ne4 Rc1 a1Q Rc2 Qhb1 Nc1 Qf6 Qdc6 Kh8 g7+ Kh7 Q7d6 Nd2 Bc7 Nf1 b8Q Qf7 Nb7 Nb3 Qbd8 Rf8 g8N Bh4 Ne7 Nbd2 Ng6 Rg8 Ne5 Qgg6 Ned3 Kh8 Bb8 Qbb4 Q8c7 Nb1 Bg3 Qd4 Ba7 Qe5 Be3 Qc5 Bd2 Qb2 Bdf4 Qbb5+
b1Q1Bk1b/2q3p1/5K2/R4p2/q2PR1rn/1PQ1R1bB/N1QB1N1Q/b4r2 w - - 0 1 illegal: Other
3QK3/Pq3Bb1/QB2BqNn/1PnR2N1/2Rp3Q/1p3bn1/1knQ4/2N4r w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 e4 b4 d4 cxd4 exf5 Ra7 Qg4 Rb7 Qd1 Rb5 axb5 Qb6 Bg2 Qc7 Bf1 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 d5 h4 b3 c4 g6 h6 e6 a6 d3 c5 d2 a7 Qe7 h5 Qb7 c6 Be7 c7 Rh7 Nf3 Ba3 Rh4 Qc6 Bc4 Bf8 Ng5 Qc5 Nc3 Qb4 Na2 Rh8 h7 Qa5 h6 Ba6 c8B e5+ Kg4 e4 f4 e3 Be6 e2 Bf7 Ke7 f6+ Kd6 f5 Ke5 Qe1 d1N Be3 Nd7 Qd2 e1N Nc1 Nc3 Bb6 Ne2 Be6 Bc8 f7 Bb7 f6 Bg7 f8N Nc5 f7 Qa6 Rh5 d4 Ra4 Ng3 Bcd5 Nc2 Rc4 Bc6 Kh4 Qb7 Kg4 Ne7 Kh4 Nef5+ Kg4 Rg8 h8Q Kd6 h7 Nh6+ Kh4 Ke5 Nd7+ Kd6 Ne5 Re8 f8Q+ Re7 Bg2 Bf3 Qc8 Rc7 Qhd8+ Rd7 Bg4 Kd5 h8Q Rd6 Nh3 Ke4 Kg5 Rf6 Bh1 Rf4 Be6 Rh4 Nf4 Rh2 Nf7 Rh3 Bg2 Rh1 Bgh3 Bf8 Kf6 g5 Kg6 g4 Rd5 Bg7 Bf1 Qa8 Qa6 Qb7 Qg2 Ke3 Be2 Kd2 Ng5 Nge4 Qh2 g3 Qh4 g2 Bd1 Ng8 Q8h6 g1Q Be2 Ng3 Bd1 Nd7 Kf7 Qf2 Ng6 Nc5+ Ke8 Qf1 Rb4 Kc3 Rc4+ Kb2 Bf7 Bg2 Bg4 Qf6 Bge6 Be4 Nh7 Bg2 Qd2 Nh6 Ng5 Bf3
K4r1R/1RQNbpQb/2B1n3/pP2R2Q/3B1r2/1r3R2/1n2Pnn1/1NBk4 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b5 a4 a5 axb5 Qg5 Nf3 Qh6 Ng1 Qa6 bxa6 Bg4 Kf2 Bf5 Ke1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 d4 c5 h4 g5 b5 f3 h6 f2 h5 g4 h7 g3 d6 g2 a7 Nh6 d5 Be7 d7 Re8 d8R Nf5 h8B Rf8 h6 Na6 d6 Nh4 h7 Bf6 d7 Bb2 Bd4 Nc7 h8R Ba3 Nf3 g1N Bg2 Nh3 Qg1 Kb3 Ne5 Ne6 Kd5 Kc2 Kc6 f1R Re8 c4 d8Q c3 Nd7 Bb4 Ra3 Be7 Qc7 Rf4 Rd8 Rb8 a8Q Nf2 Rh5 Rg8 Re5 Rg3 Qaa7 Rgf3 Qc5 Rd3 Bf3 Ng2 Rhh8 Bb7+ Kb6 Be4+ Ka7 Bh7 Bc6 Rg3 Rdg8 Rf8 Qd5 Rh3 Qf3 Rg3 Qg4 Rd3 Qg7 Rh3 Qh2 Kd1 Rb3 c2 Rf3 Rg3 Qh5 Rh3 Ba3 c1N Bab2 Ncd3 Bc1 Rb8 Rd8 Nb2 Rde8 Bb4 Re7 Rf8 Kb7 Nd8+ Ka8 Ne6+ Re8 Be7 Rb8 Ng4 Rf2 Rb3 Rf3 Nd8 Rb6 Nf2 Rb7 Ne6+
2qn1Q1K/1PqPNQ2/3R4/2R2n2/2pNB2B/r1b1q1p1/1nQ2RN1/3Rq2k w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qb3 a5 Qc2 Bf5 gxf5 g4 Qb3 g3 Qd1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qd7 Qa4 Qc8 Qd1 Qd8 d4 Kf7 Kd2 Kf6 Kc3 Kg5 e4 h5 b4 c5 d6 f2 d7 a4 d5 h4 d6 a3 e5 c4 Kd4 a2 e6 h3 Ke5 Kh4 e7 f3 e8Q h2 f6 Qc8 d8R Be7 b6 Rh5+ g5 Rh7 f7 Na6 f8Q Rh5 b7 Rh7 b8R Qd7 b5 Qc7 b6 Rh8 g6 Qd7 g7 Qc7 b7 Nh6 g8N Nc5 Rbc8 Nf5 Bd3 f1N Qc2 f2 Nc3 Ne6 Qef7 N1e3 Nb5 f1Q Ne2 Kh3 Be4 Nd1 Nbd4 Qf2 Bg5 Qe3 Rf1 h1Q Rf2 Nb2 Bh4 Qe1 Rd1 a1Q Rd7 Bg5 Ne7 Qa8 Rdd8 Bh6 Kf6 Bg7+ Kg6 Rg8 Kh7 Be5 Rd7 Rg6 Rdd8 Rf6 Rd7 Nd8 Kh8 Qab8 Rf1 Kh2 Nf4+ Q3e2 Rf3 Kh1 Ng2 Qe3 Rf2 Qa8 Nb3 Bc3 Nd4 Qb6 Rc6 Qc8 Rdc7 Re6 d7 Re5 Rd6 Ra5 Rcc6 Qbc7 Rc5 Ra3
1Q2Q1N1/3N3r/Rr1BB3/1rRp1P1p/b1r1RBbk/4P2n/1b6/1KRN1r2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 f4 d4 cxd4 Rh5 e5 Rh6 Qe7 Bd2 Nc6 Rh5 Qe6 Ke2 Nce7 Rh1 Nf5 exf5 e4 Bc1 e3 Ke1 e2 Kd2 Qe3+ fxe3 Ba3 Rh2 Bc5 Rh1 Bf8 g4 Kf7 c4 e1R Kc2 h5 b4 a5 c5 d6 b6 f3 g6+ Kf6 c6 Kg5 b7 f2 b8Q a4 c7 a3 g7 a2 b5 Ra6 b6 Be6 c8R Bd7 b7 Ra3 Rc5 Ra5 Ba3 Ra6 Nc3 Rb6 Bc4 f1R Be6 Nh6 g8R+ Bg7 Re8 d5 Nf3+ Kf6 Rc1 a1R Ne5 Kg5 Qf3 Rb5 Qe4 Rh7 Nd1 Nf7 Rh2 Bc6 Nd7 Rab1 Rd2 Kh4 g5+ Rf4 g6 Rf1 Rg2 Be5 g7 Ng5 g8N Nh3 Rg6 Rb6 Re7 R1b5 Bb4 d3+ Kb1 Bf6 Qee5 d2 Qe8 Bg7 b8B Rc4 Qb2 Ra5 Bf4 Ba4 Qe5 Rab5 Q5b8 Ra5 Rc6 Bb2 Bbd6 Rab5 Rc5 Bb3 Bf7 Ba4 Re4 Rb7 Be6 R7b6 Nf2 d1B Rf6 Bf3 Nd1 Be2 Bc7 Ng1 Bf7 Rb7 Ra6 R7b6 Bcd6 Bg4 Be6 Nh3
2NnQq2/4K2k/Qb1BBnNp/2n1n3/n4n2/1PRRrQQp/7P/R1N5 w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 e5 a4 Ke7 d4 b5 axb5 g6 b6 Bh3 d6+ Ke6 d5+ Kf6 d7 Be6 Qh5 gxh5 f3 h4 d6 Bd5 exd5 e4 Bd3 e3 Bf1 Nc6 Nd2 Rc8 Nb1 Nb8 Ra4 Qe7 Ra1 Re8 Bd2 Qd8 Bc1 Re4 fxe4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kg6 Kd3 c5 Kc4 f5 g4 e2 e5 e1N e6 h6 b7 h3 g5 a4 b3 a3 e7 a2 e8Q+ Kh7 g6+ Kg7 Bf4 Na6 b8Q Nb4 Na3 Nc6 Nb5 Nd3 Na7 Nf6 Nc8 Nb2+ Kb5 c4 Kc5 c3 Bc4 c2 Ne2 Ne5 Nc1 Kg8 g7 Kh7 g8N Qe7 Bg3 f4 d8Q f3 Qdb6 f2 Qa6 f1N Qec6 Qg7 Nge7 Ne3 d7 Ng2 Kd6 Na4 d8Q Nf4 Qde8 Qg8 Rf1 Bg7 Qbc7 Qf8 Rf3 Rg8 Rc3 Rh8 Ne2 c1N Qc6b7 Ncd3 Nc1 Ndc5 Qba8 Qf7 Ng6 Qg8 Ke7 Qf8+ Kd8 Rg8 d6 Rh8 d7 Rg8 Rb1 a1N Qf3 Nc2 Ra1 Nd4 Be6 Bh8 Qcb7 Rg7 Qg4 Re7 Qbf3 Ng2 Bf4 Bg7 Qgg3 Ndc6+ Kc7 Bh8 Kd6 Bg7 d8R Bh8 Rd7 Nd8 Rd3 Bg7 Rc7 Bh8 Bd2 Nf4 Bb4 Ncd7 Rcc3 Ndc5 Ba3 Ncd7 Qa5 Nef7+ Kc7 Ng4 Bf5 Bd4 Bd6 Re3 Qa6 Ngf6 Be6 Nfe5 Ba3 Qf7 Kd6 Bb6 Bb4 Qg8 Ke7 Qh8 Bd6 Ndc5 Qab7 Qg8 Qa6 Qf8+
1bbK1N1B/3qP3/N3Pn1B/1q1BQ2b/k1pR1R1N/1n2pb2/8/n1QB3R w - - 0 1 illegal: No proof kernel
1R1rQ2B/bp3r2/3qQ2N/1B1P1N1q/3P1r2/k1Kb1bb1/1Np2R2/4RNB1 w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 g3 h4 Bh6 e5 Kd7 f6 Bf8 f5 Nc6 f7 Nf6 exf6 Nd4 Na3 Ne6 Nb1 Ng5 hxg5 Ra5 Be2 Ra3 Bf1 Ra8 a4 Kd6 d4 h5 Kd2 e5 g6 c5 a5 e4 a6 h4 a7 b3 g7 c4 g8N h3 Qe2 e3+ Kc3 h2 Nd2 g2 Ra2 b2 Nh6 b1B Ngf3 g1R Nh4 Rg4 Rc2 Be7 f8B Rh7 f7 Rf4 f6 Bg4 Bg7 Bf3 f8Q Kc7 f7 Kb6 Qe8 Ka5 f8R Bc5 Bh8 Rhf7 N4f5 Qd6 Qe6 Ka4 Rb8 Bb6 Qe1 Bc5 Be2 Bb6 Nf1 Bc5 Bd3 e2 Be3 Ka3 Bg1 Bb6 Rd8 Rc8 a8N Ba7 Nb6 Ra8 Rg8 Rd8 Rd2 Bc2 Na4 Bb1 Nb2 Bc2 Qd1 e1B Qde2 Bg3 Q2e5 Bb1 Rf2 Bc2 Be2 Bd3 Qe3 Rdd7 Rb8 Rd8 Qe8 Bb1 Q3e6 Bd3 Kd2 c3+ Kd1 c2+ Kd2 Bde4 Bb5 Bd3 Kc3 Bh5 N1e3 Bh4 Rf1 Bb6 Bf2 Ba7 Re1 Bg4 Rhf1 h1Q Bg1 Bf3 Rf2 Bg3 Nf1 Qh5
8/PB1R1N1P/n2BN1b1/p1q5/3p2B1/1bk1qqbR/Q1b2n1B/N1KQ2Q1 w - - 0 1 legal: proof: a4 f5 e4 c5 exf5 h5 d4 cxd4 g4 Na6 gxh5 Nb8 b4 g5 b5 b6 a5 Rh6 a6 Rc6 Bd3 Rc7 Bf1 Rb7 axb7 a5 Ra2 Ra7 Ra1 Ra6 bxa6 b5 Kd2 Kf7 h4 Kf6 c4 Ke5 f4+ Ke4 f6 d5 f7 e5 h6 d3 a7 Kd4 f5 b4 f6 e4 h7 b3 h8N b2 c5 g4 c6 g3 c7 g2 h5 Bc5 f8Q Bd7 c8B Nc6 b8Q Qb6 f7 Qc7 h6 Nf6 h7 Qb7 Qg8 Be8 f8B Nb4 Bg4 Na6 Nf7 Bd6 Na3 b1B Nh3 g1Q Bg2 Bc2 Nhg5 Bg3 Rh3 Qc6 Be7 Qf1 Qc8 Qc5 Bd6 Qf3 Qe6 Bb3 Nc2+ Kc4 Bb2 e3+ Kc1 e2 Qe3 e1Q Bbe5 Ne4 Qg1 Nf2 Ne6 d4 Rb1 Qee4 Na1 Kc3 Bf4 Bc2 Rb7 Bb3 Rd7 Qee3+ Kb1 d2 Bh1 Qfe2 Bb7 Q2f3 Bfe5 Bh4 Bh2 Bg3 Qdf1 d1B Qe2 Qee4+ Kc1 Qee5 Qa2 Bdc2 Qg5 Qee2 Qe3+ Qd3 Qe2 Qde4 Qed1 Qee2 Nh6 Beg6 Nf7 Qee3+
NR2K1k1/2R2b1r/2Qp3b/p1R4B/P1RQQ1bP/4B3/b2Nrn2/b4B1b w - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 c4 f4 c3 e6 Be7 e5 Qc7 bxc3 Ba3 c4 Bf8 c5 Kd8 Ne2 Qd6 e7+ Kc7 e6 Kc6 Ng1 Qc7 g3 h5 Qd4 h4 Qe3 Kd5 Nh3 Nc6 Qf2 Ke4 Qd4+ Kf5 Ng1 h3 Qd1 Qe5+ fxe5 Kg6 Bg5 Kf5 Bc4 Ke4 Kf1 Nh6 Bh4 Nd4 Ba6 Kd5 Bg5 Nf5 Bc1 Kc6 Ke1 Nh4 gxh4 Nf3+ Kf1 Nxh2+ Ke1 Rh6 Bf1 Rh8 Kf2 g5 Ke3 a5 Ke4 b5 Kf5 f6 Kg6 d6 Kf7 b4 e8B+ Kc7 c4 Kd8 a4 f5 c6 g4 c5 b3 e7+ Kc7 e6 b2 Nd2 b1B Nc4 f4 Be3 f3 Qd4 f2 Nf3 g3 Nb6 g2 Nd2 Ba2 Rc1 g1B Rc4 Ng4 Rh2 Rb8 Rh1 Bd7 Na8+ Kc8 c7 Rb2 Rh2 Bh6 Rg2 h2 Rg3 Nf6 Rg7 Rh7 Kf8 h1B Bh5 Ne4 e8Q+ Kb7 e7 Kc6 Qg6 Bg4 c8R+ Kd7 Rb8 Bh2 Qe8+ Ke6 c6 Be5 c7 Kf6 c8R Ke6 Nf3 Re2 Qc6 Kf6 Ke8 Ke6 Qa7 Ba1 Nd2 Kf6 Qd4+ Ke6 Bg2 f1B Rc7 Nf2 Rg5 Bb1 Bh3 Ba2 Rd5 Bfg2 Rdc5 Be4 Bf1 Bg6+ Kd8 Kf7 Qce4 Kg8 e8Q+ Bf8 Q4c6 Bf7 Qee4 Bd5 Ke8 Bh6 Rcb4 Bde6 Rbc4 Bf7+
RB4NQ/1b5Q/1pR2B1p/4q2q/1Q1b1q1n/4bR1P/1Nb3KP/1kb1B2B w - - 0 1 legal: proof: d4 a5 b4 axb4 c4 d5 cxd5 Kd7 e4 Nh6 d6 Kc6 d7 Ra3 d5+ Kb6 d6 Rh3 gxh3 Ng8 Qd3 Kc5 Qd1 Kc6 f3 e5 Ne2 g5 Bf4 h6 Nbc3 Kc5 Qb1 Nc6 Bc1 Nce7 Ng1 Kd4 Qb3 Rh7 Nb1 Nd5 Qa4 Rg7 Qc2 Rg6 Qe2 Re6 exd5 e4 Qd2+ Ke5 f4+ Kf5 Qd1 Re5 fxe5 Kg6 Kf2 Kf5 a4 c5 e6 f6 a5 b3 e7 b6 e8Q c4 a6 g4 a7 e3+ Kg2 g3 a8R c3 R1a3 e2 Bd2 e1Q Ne2 b2 Nf4 c2 Qe7 c1B Qh7+ Ke5 Rf3 Kd4 Qb3 f5 Nc3 b1B Nd3 f4 Nb2 Bc2 Ne4 Qg5 d8B Qh5 d7 Bb7 d6 Ne7 Bc7 Ng6 d8Q Bg7 Nf6 Qee5 d7 Bh8 Be1 Nh4+ Kg1 g2 Ng8 Bg7 Bb8 Bf6 Be2 Bg5 Kf2 g1B+ Kf1 Bge3 Qf8 Bf6 d8B Bg7 Bf6 Bh8 Bb5 Bg7 Bc6 Bh8 Rg3 f3 Qe8 f2 Rf3 Bg7 Rg1 Bh8 Rg6 Bg7 Nc4 Bh8 Qb4 Kd3 Qef8 Bd1 Bd5 Kc2 Nb2 Kb1 Qe8 Nf5 Kg2 Bc2 Bg5 Bg7 Rc6 Nh4+ Kf1 Bf8 Bf6 Bfc5 Qf8 Bcd4 Qfg7 Qhg5 Qgh8 Qgf5 Rf4 Qh5 Bh1 Ng6 Kg2 f1Q+ Kg3 Qc4 Kg2 Qf7 Rf3 Qf8 Bg5 Qff4 Bf6 Nh4+
6Br/4NQ2/R1bN3q/n1b1k3/NKQpp3/1p1PR2r/BB2nP2/R2N2n1 w - - 0 1 legal: proof: e4 c5 a4 h5 g4 a5 gxh5 f5 exf5 b5 b4 c4 bxa5 c3 a6 b4 a5 Qxa5 Nxc3 Qb6 Nb1 Qd8 h4 Kf7 c4 Kf6 h6 g5 h7 e5 h5 d5 a7 e4 c5 g4 c6 g3 h6 g2 c7 Bd7 c8B Bc6 Bc4 Qe8 d3 Qe5 Kd2 Qb2+ Qc2 Ke5 f6 Kd6 f7 Qd4 Ba2 b3 Nc3 Qc4 Bb2 Bd7 Nd1 Na6 Rh3 Nc5 Re3 Ne6 Ne2 g1N Nec3 Qb5 Na4 Be8 Kc3 Qa6 Kb4 d4 Qc4 Ng7 Be6 Rd8 a8R Bc6 Ra7 Be7 f8Q Nf5 Qf7 Ng3 Ra8 N3e2 Bd5 Qc8 Ra6 Qh3 Be6 Bf8 Bd5 Ne7 Be6 Rg8 h8N Ke5 h7 Rg3 Bd5 Qh6 Ng6+ Kd6 h8N Rh3 Nh4 Ke5 Nf5 Nc8+ Ne7 Nd6 Qh7 Nb7 Bg8 Na5 Nf7+ Kf6 Nd6 Ke5 Qhf7 Re8 Nec8 Be7 Bh7 Rh8 Bg8 Bd8 Ne7 Bb6 Nc5 Ba7 Na4 Bc5+
1RNBn2q/4n1k1/N2PBRpN/5r2/Qp3rb1/3p1Pn1/B2bR1B1/1K3Q2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 d4 Ra4 dxc5 d4 Bh3 Ra3 Bf1 Qd5 cxd5 Ra8 Kd2 Kf7 Kc2 e5 a4 b5 h4 e4 a5 g6 d6 e3 c6 e2 f6 e1Q a6 Qe6 h6 Ne7 h5 Qe1 h7 Nf5 c7 Nh4 a7 Bd7 c8B Na6 h6 Be7 Bc4+ Qe6 Rh2 Bd8 Ne2 Bc7 Nec3 Kf8 f7 Bc6 Ne4 Qd5 Bg5 Be8 Na3 b3+ Kb1 b4 Nb5 d3 Bd8 b2 Ba2 Bb8 Be6 Nc7 Qa4 Qe5 Nc5 Nf5 Na6 Ng3 Rg2 Rg8 h8R Bd7 h7 Ne8 Rh2 Bc7 Rg2 Rb8 a8B Kg7 Na7 Rf8 Nc8 Rb5 Rh2 Qh5 Bg2 Rf5 Rg8+ Kh6 h8N Bb6 Rh1 Bc5 Re1 Be3 Re2 Bd2 Rg7 Rg8 f8Q Qh2 Qf7 Rf8 Rg8 Rf4 Qf5 Rf6 Rf8 Kg7 Nf7 Qh8 Nh6 Rf7 Qh3 R7f5 f3 Ra5 Bg8 Bg4 Rf6 Rh5 Bae6 Rhf5 Qh1 Rc4 Qf1 Rcf4 Ka2 b1N Kb2 Na3 Ra2 Nc2 Kb1 Nd4 Rc2 Nh5 Rc6 Ng3 Rb6 Nc6 Rb8 Ne7 Ba2 Rd5 Be6 Rdf5
r2Q2Nr/4pBR1/2Q3KQ/1RP3P1/1b1B4/bpNR2r1/Qn4p1/1qk1Nn2 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 f3 g5 Be3 b6 Kf2 g3+ Ke2 g2 Kd2 g4 Bf4 g3 Ke1 Bb7 Bg5 Bd5 Bc1 Bf7 Bg5 Bh5 Bc1 Bg4 fxg4 Rh6 Qd5 Rh7 Qd1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 d6 c4 b5 h4 b4 a4 b3 c6 Nd7 c5 Rb8 h5 Nb6 c7 Nd7 c8Q Rb6 a6 Rh7 a5 Bg7 h6 Rb8 g5+ Kf7 a7 Bb2 a8Q Qe8 f6 Kg6 a6 Nb6 f7 Nc4 f8Q Rh8 a7 Ba3 h7 Nb2 Rh3 Nh6 Qcc6 Nf5 Nc3 Ne3 Bc4 Nf1 Nf3 g1B Ne1 g2 Be3 Bf2 Bd4 Qf7 Be6 d5+ Ke5 Rc8 Rd3 Be3 Qb1 Bd2 Qa2 Qf2 Qb8 Qg1 a8R Kh5 Bf7+ Kg4 Ra6 Rd8 Qbb6 Ra8 Qbd8 Qh1 Ke6 Kf4 Qh6 Qg1 Rb6 Qh1 Rb5 Qg1 Bg7 d4 Rd1 Qh1 Rh3 d3 Bd4 Bc1 Rh2 d2 Rh3 Bb4 Rh2 Kg3 Kf5 Qg1 Kg6 Kf4 Be5+ Ke3 Bf6 Na4 Rh1 Bca3 Bd4+ Kf4 Rh3 Nb2 Rd3 Qh1 Rc1 d1R Ra1 Rf8 h8N Rd2 Rd1 Rf2 Rh3 Rf3 Rd3 Qg1 Qg7 Re8 Rh7 Rg3 Qh6 Rf8 Rg7 Rg8 Be8 Rf8 Nf7 Rh8 Nd6 Qh1 Nde4 Qg1 Nf6 Qh1 Rd1 Qg1 Ng8 Qh1 Be5+ Ke3 Bf7 Qg1 Rd5 Qh1 Bd4+ Kd2 Rf5 Kc1 Rf3 Qh4 Rd3 Qg4 Qde8 Qd1 Qb8 Qc2 Qd8 Qb1
b1R2NrB/bN6/1RRr2B1/2P1nP2/K3Rp1k/2N4b/2p2rpQ/1q1B3Q w - - 0 1 illegal: No proof kernel
1bkN1bQ1/2r3q1/b1pBp2P/B2Q4/r1N1R1Q1/3KP3/1p5B/2NNnrR1 w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 g4 g5 f4 h5 c4 b4 cxd5 Nc6 Bh3 Bh6 fxg5 Na7 g6 Nb5 axb5 Bg7 g5 Bf8 Bg4 hxg4 h4 Kd7 d4 f5 Kd2 f4 a6 e6 e3 c6 h5 f3 b6 f2 a7 f1R h6 b3 d6 g3 g7 g2 d5 Ne7 b7 Rf2+ Ne2 g1B b8B Rg8 g6 Rh8 Nc3 Ba6 Ba3 b2 Rh4 Rh7 Re4 Kc8 d7+ Kb7 d6 Qb6 d8B Kc8 d7+ Kb7 Bbc7 Rb8 a8N Qa5 Nb6 Qg5 Nc4 Rf7 Ba5 Qf4 Bdc7 Bh2 d8N+ Kc8 Kc2 Rf5 Qd5 Qg4 Kd3 Rb4 Rg1 Ra4 Nd1 Rf1 Nc1 Nf5 Bc5 Nd4 Be5 Bf4 Bcb4 Bg5 Bh2 Bf4 Ba3 Bb8 Bad6 Nf3 g8Q Qh4 g7 Qg4 Qf7 Qg6 Qff5 Qg2 g8Q Rc7 Qh5 Qg7 Qg4 Ne1+
K3NQ1n/Q2r1pb1/1RR1N1N1/2Q1nB2/3Q1rp1/2P1qPp1/r3R3/1nk2B2 w - - 0 1 legal: proof: b4 e5 h4 c5 bxc5 b5 d4 b4 dxe5 h6 Bg5 hxg5 a3 Ba6 axb4 Bc4 b5 Be6 Nf3 Be7 Ng1 Bh3 gxh3 Bf8 Kd2 Ke7 Ke3 Ke6 Ke4 a5 h5 g4 f3 g5 h6 d6 c6 g3 c3 a4 h4 a3 c7 g4 c8B+ Qd7 h7 a2 h5 Na6 b6 Bg7 b7 Rb8 h6 Nb4 Nd2 Nc6 Rb1 a1N Nh3 Nge7 Nb3 Bf8 Qd4 Bg7 Qc5 Nd5 Nf4+ Ke7 e6 Kf6 e7 Kg5 e8N Nd8 Nd4 Nb3 Ng6 Nc6 e3 Qd8 Bf5 Ne5 Rh3 Rg8 h8Q Ne7 h7 Qb6 Rh6 Ra8 b8Q Ra4 Qa7 Rc4 Nf4 N7g6 Kd5 Nd2 e4 Rf8 Qg8 Nh8 Ng6 Rb4 Rb2 Nb1 Re2 Qb5 Rb2 Qd3 Rb3 Ra4 Rb6 Qe3 Rc6 Nd3 e5 Ra2 e6 Ne5 Nf6 Rb8 e7 Rb4 e8R Rc4 Qf8 Rca4 Nh4 Kf4 Rb6 Qe2 Ng6+ Ke3 Rc6 Kd2 Ne6 Qe3 Re7 Kc1 Ne8 Rf4 Rb6 Nd3 Kc6 d5 Kb7 d4 Ka8 Ne5 Rc7 d3 Rcc6 d2 Rh2 d1R Re2 Rd8+ Kb7 Qd4 Ne7 Nd3 Be4 Rd6 Ka8 Qe3 Bg6 Rd7 Be4 Ng6 h8Q Bh6 Qhd4 Nh8 Bf5 Bg7 Ng6 Ne5
1b3N2/2RNB1qQ/1K3R1B/1rp1Rq1N/k1P4P/4Q1p1/1n2R2p/1qr2bQ1 w - - 0 1 legal: proof: d4 e5 e4 f5 a4 b5 axb5 Bb7 Bd3 Qg5 dxe5 Ba6 e6 Bc8 e5 Qd8 Be4 fxe4 h4 h5 Qg4 g5 Qd1 g4 g3 Qg5 hxg5 h4 Ra3 h3 Nc3 Nc6 Nb1 Nce7 Ra2 Nf5 Ra1 Nh4 gxh4 Ba6 Kd2 Bb7 Ke1 Bc8 Ke2 d5 Ke3 a5 Kd4 a4 f4 g3 b4 c6 c4 e3 g6 h2 f5 a3 b6 e2 b5 e1Q f6 a2 f7+ Kd8 e7+ Kd7 Kc5 d4 b7 d3 b8B d2 b6 Bh6 e8R Ra7 b7 Ra6 g7 Rb6 Nf3 Bf4 Nc3 Rh5 Nd5 Qf1 Bd6 Qe2 b8R Ne7 g8Q Rb1 Rf1 Qd3 Qh7 Ng6 Rb2 Qf5 Kb6 Rg5 Qe1 d1Q Be7 Bb7 Bd2 Rc1 Nf6+ Ke6 Rab1 a1Q Nh5 Kd7 Rb5 Qdc2 R1b2 Qcb1 Ra8 Bc8 Ra7+ Bb7 f8N+ Kc8 e6 Bb8 R5b4 Ne5 Rb5 Nd3 Ne5 Ba8 Rc2 Nb2 Ned7 Bb7 Re5 Ba8 Ng7 Rh5 Bh6 Bb7 Kc5 Kc7 Re2 Rg5 Ra3 Ba8 Nh5 Kb7 Raf3 Ka6 R1f2 Bb7 Qg1 Ka5 Rf1 Ka4 Kb6 c5 Rd3 Rg8 Rd6 Bd5 Rc6 Bg2 Rc7 Rg6 Rf4 Bf1 Rff2 Qg4 Rf6 Qgf5 Bd8 Rg8 e7 Rg7 e8Q Re7 Kb7 Re6 Be7 Ra6 R5e4 Ra5 Kb6 Qa3 Re5 Qc3 Qeg6 Qd4 Qg5 Qdg4 Qf4 Qg7 Qfe3 Rb5+
1k2n1R1/1bNK1NR1/2P1Q1nN/npBr2pR/1B1p2r1/BQ6/2P1qq2/2N5 w - - 0 1 legal: proof: g4 c5 f4 f5 e4 h5 b4 a5 bxa5 e6 d4 Nc6 dxc5 Qc7 e5 Nb8 gxf5 Be7 Be2 Qd8 Bg4 Bf6 exf6 hxg4 Kd2 b5 Kc3 d5 Kd4 Kd7 Ke5 Kc7 a4 g5 h4 d4 f7 g3 f8B g2 a6 Bb7 a5 Bf3 a7 Nf6 h5 Bb7 a6 Ne4 c6 Rg8 f6 Nf2 f5 Rh8 h6 Nh3 f7 Qe8 f6 Qd8 h7 Nf2 Ne2 g1Q Ng3 Qh2 Qe2 Qh6 Bb4 Qh4 f8B Nd1 f7 Ne3 Nd2 Qe7 Nf5 Bc8 Nb3 Qf2 Qg4 Qe8 Bfc5 Nc4+ Kf6 e5 f8R e4 Rg8 Qh5 Ke7 e3 Qe4 e2 Qe6 e1N Rg7 Rf8 h8N Rf6 Nh6 Ng2 N8f7 Qhe2 Rh5 Nd7 Ra5 Rb8 a8Q Nf4 a7 Bb7 Bb2 Rd8 Nc1 Rf5 Ra6 Nf6 Rb6 Ba6 Rb8 Rdd5 Rbg8 Ne8 Bd6+ Kb6 Kd7 Ng6 Qb8+ Bb7 a8N+ Ka6 B2a3 Rf4 Qc7 Na5 Qb8 Re5 Bdc5 Rg4 Qb3 Rd5+ Qd6 Rf5 Qde6 Rd5+ Bd6 Ka7 Nc7 Re5 Bf8 Kb8 Bfc5 Rd5+
rRr3k1/1B1q2p1/7p/1N2P2R/Q3BPN1/1qB1pr1R/1KQ1B3/nb1b3Q w - - 0 1 illegal: No proof kernel
1Q2Qqq1/rNB1P1n1/5Q1P/pNR2R1R/Bb2n3/7n/1K3pp1/Q1Bb1k2 w - - 0 1 legal: proof: b4 a5 g4 b5 f4 d5 c4 h5 cxd5 e5 gxh5 exf4 a4 Be7 axb5 Be6 b6 Bc8 b5 Ra6 bxa6 Bf8 d4 Kd7 Kd2 Kd6 Kc2 c5 h4 g5 e4 f5 b7 c4 a7 c3 a8R f3 e5+ Ke7 d6+ Ke6 h6 Kd5 e6 Ke4 h5 f2 d5 f4 d7 g4 d6 g3 h7 f3 h6 g2 e7 Nf6 Bb5 f1Q Rh5 Ne8 Ne2 Na6 b8Q Ng7 Nd4 Nc5 Nd2+ Ke3 Nc4+ Kf2 Ba4 Ne4 Nb5 Rg8 Kb1 c2+ Kb2 Qe8 d8Q Bg4 h8Q Kg1 Bg5 c1N d7 Ne2 Bc1 Nf4 Ncd6 Nh3 Nb7 f2 Qf3 Qc4 Qf6 Kf1 Qdc8 Bf3 d8B Bd1 Bc7 Qef7 Qe8 Qce6 Qh7 Qc8 Qhf5 Rh8 Qc5 Qg8 Qcd4 Qce6 Qfg6 Nhg5 Ra6 Qgf7 Ra3 Qb3+ Ka1 N7e6 Qba7 Nd2 Qed7 Nde4 Rc6 Bg7 Rc5 Ra8 Qb8 Nh3 Qde8 Qf8 Qg5 Qc4 Rf3 Ra7 Rff5 Bh8 Qb2 Bc3 Qf6 Bb4 Qa2 Qd5 Kb2 Ng7 Qa1 Qdg8
2bKq3/B1P2pQB/2P1Q2n/1npQ1b2/4N3/NR2R2r/Q1qpB2k/1b4R1 w - - 0 1 illegal: No possible last move, all moves rejected
1R4RR/2B1K3/knNQP3/4N3/p1r4p/PqN2Q2/npb1b1Bn/1nQ3Q1 w - - 0 1 legal: proof: g4 f5 c4 d5 b4 c5 bxc5 e5 cxd5 e4 f3 exf3 h3 b5 Qc2 a5 Qd1 g5 Bb2 f4 Bc1 Bh6 h4 Ra7 Bh3 Rf7 Bf1 Rf5 gxf5 g4 Ba3 Qf6 Bc1 Bg5 hxg5 Qd8 Kf2 Kd7 d4 Kc7 e4 Kb7 d6 h5 a3 b4 g6 a4 f6 b3 d7 Qa5 d8Q Bd7 c6+ Ka7 f7 Qb4 f8Q Nf6 g7 Na6 g8R Bc8 e5 Rh6 c7 Qc3 d5 Nb4 d6 Na2 d7 Nd5 Bg2 Rc6 e6 Rc4 Qf5 Ba6 c8Q Nb6 Qfd3 Qb4 Nc3 Qb5 Rb1 g3+ Ke1 f2+ Ke2 f1N Qf3 Qb4 Kd3 Nd2 Qf8 Bb7 d8N Ka6 Qd6 Qb5 Rb2 Nb1 Qcc5 Bd5 Nc6 Qb4 Bd2 Qb5 Qc1 Be4+ Ke2 Bc2 Be1 Bd1+ Kd3 Qb4 Qcd4 Qb5 Ke4 Bc2+ Qd3 Qb4 Ke5 f3 Kf6 f2 Nf3 f1B Ke7 Be2 Qg1 Qb5 Nfe5 h4 Rh8 Qd5 Qf3 Qd3 Bd2 Qd5 Bf4 Qd1 Bf1 g2 Rh3 Qd3 Rg3 Qd5 Rgg8 Qb5 Qh2 g1N Bg2 Qb4 Qh5 Nf3 Qhg1 Nh2 Qf3 Nd7 Be3 Qb8 Bb6 Qb7 Bd8 Nb6+ Bc7 Be4 Rd2 b2 Rd5 Bc2 Rb5 Na8 Rb4 Qb5 Rb3 Qd5 Rbb8 Nb6 Qb4 Qb5 Qd6 Qb3
4bQ1N/nn1r4/1pR1QbN1/B1P2Rq1/7R/kN1pB3/1bPp1bN1/1K4Q1 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 c4 g4 Ra6 gxh5 Rc6 Bd3 Rc5 dxc5 cxd3 Kd2 d5 a4 Kd7 f4 Kc6 h4 g5 a6 e5 a5 Kb5 h6 Kb4 h5 g4 h7 d4 a7 e4 a8R g3 h6 g2 f6 b6 f7 Nd7 f5 Nb8 a6 Bb7 a7 Nf6 Nf3 g1B Rh4 Qd6 Ne1 Bc6 Ng2 Nbd7 Rc8 Qb8 a8Q Qg3 Qa2 Bg7 f8N Bf2 Ng6 Ne8 f6 Nd6 f7 Nb8 f8Q Nb7 Qg1 Bf6 Qe6 Be8 Rc6 e3+ Kd1 Qg5 Nd2 Rg8 h8B Rg7 h7 Rd7 Nb3 d2 Rb1 Ka4 Bg7 Kb4 h8N Ka4 Bh6 Kb4 Bb2 Ka4 Bc3 Ka3 Rc8 Nc6 Ba5 Na7 Rc6 Qe5 Ke2 Qf4 Rf1 Qg5 Kd3 e2 Kc4 Bg3 Rf5 e1B Kd3 Bef2 Kc4 Qh5 Be3 Qg5 Kd3 Bd8 Kc4 d3 Kc3 Be5+ Nd4 Ka4 Kb2 Bdf6 Kb1 Ka3 Nb3 Bb2
2Q1b2B/Pp3Nrk/p2P1R1b/KBR5/Bq1bn3/N7/3NpQ2/b1r1QB2 w - - 0 1 illegal: No proof kernel
5RQ1/p2PrB2/7b/QN1Qq3/pbBQbpP1/6K1/6n1/bkNrNB1R w - - 0 1 illegal: No possible last move, all moves rejected
5K2/5r2/2qbb3/2pBqR1p/QB1NP3/R1p1B2P/2b1N1Nk/1Q1R1Brr w - - 0 1 legal: proof: f4 d5 e4 e5 fxe5 f5 a4 b5 axb5 f4 c4 dxc4 d4 Kd7 g4 Ke8 e6 Nc6 Na3 Nh6 Nb1 Nf5 gxf5 Ne5 dxe5 Qd7 Nd2 Qd3 Nb1 Qd8 Ke2 Ke7 Kf3 h5 b4 a5 f6+ Ke8 h3 g5 f7+ Ke7 b6 a4 b7 c3 b8N a3 b5 c6 b6 a2 b7 Qd2 Ne2 Bd7 Na3 Qb2 Be3 Qb6 Nc2 Rh7 Ne1 c5 Qb1 Qd6 Ng2 Ba4 Rg1 Bc2 Rh1 Ra4 Rg1 Rd4 Rh1 Rd1 Rg1 Kd8 e7+ Kc7 e6 Qe5 e8B Bd6 f8R Re7 Bf7 Re1 Nc6 g4+ Kf2 g3+ Kf3 Rd1 Ncd4 Rc1 Bg8 Re1 Rf5 Rd1 Ne1 g2 Rh1 g1R b8B+ Kd8 Ba7 Kc7 Ng2 Re1 Nb3 Rd1 Bb6+ Kc6 Ba5 Re1 Kf2 f3 Bb4 Rd1 Nbd4+ Kc7 Rf4 Rc1 Kg3 f2 Kh4 Rd1 Qb3 Re1 Rd1 a1Q Rf5 Qa8 Kg5 Qc6 Ra1 Rc1 Kg6 Rb1 Ra3 Re1 Nc1 Rd1 Qb1 Re1 Bb5 f1B Bf7 Bc4 Nce2 Rd7 e7 Be6 e8Q Re7 Kh7 Ref1 Kg8 Rd1 Rh2 Rh1 Bc4 Rdg1 Kf8 Qg3 Qa8 Be5 Nc1 Kd6 Bg8 Bd7 Bgd5 Be6 Nh4 Bf4 Rd2 Qg5 Rf7 Ke5 Qa4 Bh2 Rd1 Qf5 Bf2 Kf4 Be3+ Kg3 Bd3 Qf4 Rf5 Qfc7 Nhf3 Kg2 Be2 Be5 Nh4+ Kh2 Bf1 Q7d6 Ng2 Bf4 Bb3 Qdd5 Bbc4 Bd6 Nce2 Qe5 Bd5 Rf7+
1b6/1KrNPqN1/BQ4q1/p1RbBp2/r4R2/2bNkB2/1P2Np2/Q2q3R w - - 0 1 legal: proof: c4 b5 g4 e5 f4 d5 cxd5 f5 a4 g6 axb5 Nh6 g5 Nf7 Bh3 Nd7 Bf1 exf4 h4 Nf6 gxf6 g5 Nf3 g4 Ng1 Ng5 hxg5 Be6 Rh4 Bd7 Rh1 Bc8 Rh4 Kf7 Kf2 Kg6 d4 c5 e4 a5 e5 h5 b6 c4 e6 f3 Ke3 c3 b7 g3 b8R c2 e7 f2 d6 g2 d5 Rh6 Kd4 Ra6 Kc5 Bg7 f7 Rh8 f8N+ Kf7 g6+ Kf6 d7 Ke5 d6 Ra8 Kc6 Qe8 Nd2 Rh6 Ndf3+ Kf6 Rb5 Rb8 Ne5 Ba6 Bf4 Qf7 d8Q c1B Rc5 Bc4 d7 Rb4 Qb6 Ra4 d8N Ba2 Rg4 h4 Nde6 h3 Kb7 h2 Ba6 h1Q Ne2 Bc4 Bg3 Bf4 Nd3 Bb8 Rc1 Bh8 g7 g1Q+ Re4 Qgg2 Nd7+ Kg6 Bf4 Kh5 Qg1 Kg4 Qd1 Kf3 g8B Qfh5 Bh2 Bc3 Ng7 Rc6 Bd5 Qf7 Be5 Qgg6 Rf4+ Ke3 Bf3 Bd5 Ra1 Qe1 Qb1 Qd2 Qa2 Qc2 Rh1 Qd1 Qa1 Rc7+
N1Bb4/rK2Q1B1/nP2p1PB/qq1kpRQN/4r1p1/1r6/1r2R3/QQ5N w - - 0 1 illegal: No possible last move
2qQqB1q/1n6/P1R5/3RQPb1/2NprQ2/Bkq4B/p4R1p/2r2NRK w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 d4 cxd4 exf5 Qb6 Be2 Qc7 Bf1 Qd8 Kd2 a5 Ke2 Na6 Ke1 Nc5 Rh6 Ba6 Rh1 b4 b3 Bb5 axb5 a4 Bd2 a3 Bc1 Na4 bxa4 Ra7 Nc3 Ra5 Nb1 Ra8 f4 Kf7 Kf2 h5 g4 e5 Kg2 d5 c4 e4 b6 e3 b7 d3 b8Q d4 g6+ Ke7 c5 h4 f6+ Ke6 c6 Kd5 f7 Kc4 c7 e2 c8R+ Qc7 a5 e1Q g7 b3 a6 b2 f5 a2 g5 Qd2+ Qe2 Qc3 g6 Rh5 Qe5 Nf6 g8Q Nd7 g7 Be7 Ne2 d2 Qd8 d1Q g8R Qde1 f8B Bg5 Rh2 h3+ Kh1 Nc5 Rf2 Nb7 Na3+ Kb3 Nc4 b1Q Bca3 h2 Ng3 Rh4 Qf4 Qce5 Rc6 Qh8 Qbe5 Rc8 Rgg6 Qbd3 Rgd6 Qdc2 Rd5 Qee2 Bh3 Rc7 Qef6 Qe8 Rg1 Rc8 Q6d6 Rc7 Qfe5 Re4 Nf1 Re7 Qg3 Re1 Nb6 Rc1 Rc8 Re4 Qde5 Q3d3 Qgf4 Qc5 Nc4 Qc3 Rc7 Qcc6 Rc8 Qcd7 Rc6 Qc8
3BB2r/3p4/N1B1Q1NP/2p2Pq1/1R1Bq3/RQ2rNp1/1K2k3/2q1bqnR w - - 0 1 legal: proof: e4 c5 a4 f5 exf5 h5 g4 hxg4 b4 b5 axb5 Rh7 d4 Rh6 c4 Ba6 d5 Rh8 b6 Qc8 b5 Qc6 b7 Qc8 b6 Bb5 cxb5 Nc6 dxc6 Qd8 Kd2 Kf7 Kc3 Kf6 b8B g5 f4 a5 h4 e5 h5 a4 c7 a3 c8B g3 h6 e4 b7 g4 b6 e3 Qe1 a2 Nf3 g2 Bd3 g1Q Na3 g3 Be5+ Ke7 b8Q e2 b7 Nf6 Nb5 Ng4 f6+ Ke6 f7 Kd5 Bg6 Bd6 f8N Nh2 f5 Ke4 Kb2 Kd3 Bd4 Qg5 Nc7 Be5 Be8 Ra3 Ng6 Qf1 Na6 Bc7 Bf4 Ba5 Bc7 Bb4 Bd8 Rc3 Qc1 e1Q Qcf4 Qe3 Qfe5 Qe4 Qe6 Ba5 Qb3 Bb4 Qd6 Ke2 b8R Re3 Qde6 Bd2 Rb4 Be1 Nfh4 Nf3 Bb7 Ng1 Nf3 Qgh4 Bc6 Qhf4 Rd1 Qg5 Rd3 a1Q+ Kc2 Qa5 Kb2 Qc7 Qa4 Qd6 Ra3 Qdd5 Qb3 Qc4 Ka1 Qc1+ Ka2 Qd1 Kb2 Qc1+
3Q2RN/2nn4/Qp5p/1p1n1k2/2NB1P2/R1Rnn1B1/1BBPK1N1/r3br2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a6 f4 Nh6 e4 Rg8 exf5 Rh8 f6 Ng8 b5 axb5 g3 Ra6 Nh3 Ra4 Ng1 Ra8 g4 g5 h3 Bf5 gxf5 g4 Bd3 g3 Be2 Qc8 Bf1 Qe6+ Qe2 Qf7 Qf3 Qg6 Qd1 Qg4 hxg4 Ra3 Rh2 Ra6 Rh1 Ra8 a4 Kf7 a5 e5 g5 c5 d6 g2 d7 b6 d8B c4 g6+ Ke8 f7+ Kd7 g7 h6 f6 Ke6 a6 c3 a7 e4 Ra3 c2 Nf3 g1N Bb2 c1N Nh4 e3 Bd3 e2 Ng2 Na2 Rh3 Nd7 Qa4 Nb4 Qa6 Bc5 f8B Ne7 g8R Nbd5 f7 Ne3 Bc2 N7d5 Bh4 Nc7 Bg3 Re8 Kf2 e1N a8Q Ne2 Bfg7 Nc3 Qd8 Nc3d5 Bgd4 Nd3+ Ke2 Kf5 f8N Be7 Rc3 Bh4 Na3 Re4 Nc4 Re5 Bh2 Be1 Ng6 Rh7 Nh8 Rg7 Kf3 Rg3+ Ke2 Rf3 Rhg3 Rf1 Rf3 Re6 Bg3 Rg6 Ra3 Rg4 Rc3 Rh4 Ra3 Rhh1 Rg7 Ng4 Ra2 Bf2 Ra4 Ra1 Re3 Rhf1 Ra3 Be1 Bd1 Ndf2 Rec3 Nge3 Bc2+ Nd3 Rg5+ Ke4 Rg8 Kf5
n2R3Q/1pPQ2Q1/B1P4K/2n2pn1/1QNB3n/p2k4/1R1r1bN1/R1bb2B1 w - - 0 1 illegal: No proof kernel
nb1Q4/P1Q4N/B3BR2/Kb2b1Nb/4n1NB/1P1ppqp1/3R4/k1N2Qn1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 c5 d4 cxd4 g4 h5 gxh5 Qc7 Bc4 Qb6 Bf1 Qd8 Bd3 g5 Ba6 b5 Qd3 a4 Bb7 Ra5 bxa5 b4 Ba6 b3 Qd1 b2 Bf1 Rh6 Nh3 Rb6 Ng1 Rb3 axb3 Qc7 Ne2 Qb6 Ng1 Qd8 Kd2 Kf7 f4 Kf6 c4 e5 h4 d5 h6 g4 h7 g3 h8Q+ Bg7 a6 a3 c5 a2 c6 d3 Kc3 d4+ Kb4 e4 a7 d2 c7 Ba6 c8B Qd7 h5 Nh6 Ne2 Qd6+ Ka5 Bb7 Na3 b1N Qc2 d1B Be6 Qd7 Qc7 Bc2 Rh2 Bd1 Nc2 Nd2 Ne3 Ng8 h6 Qf7 h7 Na6 Ba3 Nf3 Nc1 Ba8 Rd2 Bc6 Rb1 a1B Bb4 Ne7 Qhd8 Nc5 h8N Ng1 Ba6 d3 Ba3 Qf8 Nf7 Bh5 Ng5 Be5 Bb2 Bb5 Bd4 Bh6 Ng4+ Kg7 Ra1 e3 f6+ Kg6 f7 Nd5 Bb2 Ne4 f5+ Kg7 Ra4 Nb6 f6+ Kg6 Rc4 Na8 Rc6 Bg7 Ba3 Bf4 Be7 Bd6 Bc4 Kf5 Be6+ Kf4 Nh2 Ke5 Ng4+ Kd4 Rb6 Qg8 f8N Qf7 Nfh7 Qf8 f7 Be5 Bc4 Kc3 Bf6 Qe7 f8Q Qf7 Be7 Qd5 Qf1 Qb7 Be6+ Qc6 Rd1 Kb2 Rd2+ Kb1 Nf3 Ka1 Bh4 Bf4 Nfg5 Bde5 Bf5 Qd5 Rf6 Qf7 Be6 Qf8 Qc5 Bb8 Qcc7 Be5 Rh6 Qf2 Rf6 Qf3
2r2k2/P3q1bB/1p1RbBp1/1K1N1B1n/P6R/4p3/1RnQ1NpQ/2rQ1Q2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 d5 cxd5 c5 bxa5 c4 g4 hxg4 d3 Na6 dxc4 Nb8 c5 Bd7 Qd3 Be6 Qd1 Bc8 Ke2 e5 Kd3 g3 Kc4 b6 a4 e4 h4 g2 f4 e3 d6 Kf7 c6 Ra6 d7 Nh6 f6 Qc7 d8R Rg8 h5 Bh3 f5 Ra7 a6 Qb7 c7 Be7 c8B Qe4+ Kb5 Qe6 Bb2 Qd6 Bd3 Qh2 Ra2 Qf4 Rd6 Rd8 Nc3 Bf8 Nd5 Ra8 a7 Bg4 Rh4 Qe4 Nh3 Qe6 Nf2 Ng8 h6 Qe4 h7 Rd7 h8Q Qe8 Bd4 Qd8 Rb2 Nc6 Bc2 Ke8 Be4 Qe7 f7+ Kd8 f6 Be6 Qd2 Nb4 Bh7 g6 Qd1 Bg7 f8Q+ Qe8 f7 Nf6 Qfg8 Nc2 f8Q Nh5 Qff3 Qf8 Bf6+ Ke8 Qf1 Rc7 Q3d1 Na1 Qd2 Rc1 Qfd1 Nc2 Qf1 Bf7 Bf5 Rc8 Qfd1 Bh6 Qgg7 Be6 Qc7 Bg7 Qc4 Kf7 Qcf1 Qe7 Rd7 Rc3 Qb8 Rc6 Qh2 Rc8 Rd6 Kf8
2B1n1n1/1R1r1nR1/1Qp1NBPb/Q6B/N2pk3/pRKbp3/1P6/1N3R1q w - - 0 1 legal: proof: h4 b5 e4 g5 c4 gxh4 d4 f5 exf5 a5 a4 c6 c5 Nh6 axb5 Ra6 d5 Ng8 d6 Qc7 dxc7 Rb6 cxb6 Bh6 Qe2 Bg7 Qd1 Bf8 Kd2 Kf7 f4 Kf6 g4 e5 b7 h5 g5+ Kg7 f6+ Kg6 f7 Kf5 b6 d5 g6 h3 Kc3 h2 Ne2 a4 Qd4 Na6 b8R a3 b7 h4 Qb6 Bh6 f8Q+ Ke4 f5 h3 f6 Kf3 f7 e4 Bg5 e3 Qfb4 Bf5 f8N Bd3 c8B Rh7 Bf6 Rf7 Ne6 Rd7 Q4a5 Ke4 Bg2+ Kf5 Bf3 Nc7 Bh5 Ke4 Rf1 h1N Rf3 h2 Rh3 Kf5 Rh4 Nf2 Rb4 h1Q Rb3 Bg7 Ra8 Ng4 b8R Ne5 Rb7 Ne8 Ra6 Bh6 Raa7 Rd8 Rg7 Nf7 Rb7 Bc4 Kb4 Bb5 Nec3 Rd7 Na4 Bf1 Kc3 Bd3 Nd2 Qf1 Rd1 Qh1 Nb1 Ke4 Rf1 d4+
B1NR4/3rr1pk/2RnB2p/KRP3b1/n3r1Q1/pq2P1R1/N5p1/N3B1Q1 w - - 0 1 illegal: No proof kernel
1k1q1n2/1BRQQ1b1/1rQ1pp2/1PqB1rR1/1P3R1N/1QK1N1p1/N3p3/5b2 w - - 0 1 illegal: No proof kernel
Q5rk/1BRP1qb1/3pp2n/N1KP2qR/QpB5/7Q/1B2p3/1b1RNrQ1 w - - 0 1 illegal: No possible last move, all moves rejected
rQ1B2B1/qK1k4/1p2Rpp1/N1B3rN/2R3q1/1RqN1p2/2bR1P1P/Q5n1 w - - 0 1 illegal: No possible last move
k3qQ2/1r3Np1/1R2p3/1pR3R1/1nqP1K1R/2PpnB1Q/nBQ5/1NNb4 w - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 c3 f5 exf5 h5 gxh5 d4 Qb3 d3 Qc2 Nf6 Qd1 Ng8 Nh3 c5 Qe2 b5 Bb2 b3 Qg4 c4 Qd1 e6 Ng1 Bc5 Bc1 Bd4 cxd4 c3 Bh3 c2 Bf1 Ra4 Qg4 Rc4 Qd1 Rc3 dxc3 Rh7 Bg2 Rh6 Bf1 Rh8 Kd2 Kd7 Ke3 Kc7 h4 Kb7 a4 b2 f4 Na6 a5 Nc5 a6+ Ka8 h6 Rh7 h5 Qg5 a7 Nf6 Rh4 Bd7 Ne2 Nb7 Ra6 Ne4 f6 Ng3 f7 Qd8 f8R Be8 f5 Qd7 f6 Qc6 f7 Nc5 Bg2 Nf1+ Kf4 Qb7 Rb6 Qc6 Bf3 Rh8 h7 Qb7 h6 Rg8 h8Q Ne3 h7 Na6 Qd2 Nb4 Qd1 Nc6 Qd2 Qc8 Qd1 Bd7 Rd8 Be8 f8Q Bf7 Rd5 Bh5 Rg5 Bg4 Bd2 c1N Qc2 Na2 Bc1 Nf5 Na3 b1Q Bb2 Qe8 Nc1 Qa1 Nb1 Ne3 Ra6 Kb7 a8R Bh5 Rc8 Bg4 Be4 Bd1 Rb6+ Ka7 Bf3 Ncb4 Rcc6 Ka8 Rcc5+ Nc6 Qf5 Rf8 Qg8 Rf7 h8N Rb7 Nf7 Ncb4 Qg4 Kb8 Qh3 Ka8 Ba3 Qb2 Qf8 Qb3 Bb2 Qc4
1B3RN1/1p1n4/N1Rq4/1QQQNq1p/PP2p2k/7b/1p3K1B/rbq2BB1 w - - 0 1 illegal: No proof kernel
RNn3RB/Q1pp1Q2/2N5/1PB1p2p/rQBn2P1/4R2b/7r/kB2rn1K w - - 0 1 legal: proof: e4 f5 exf5 b5 a4 g5 axb5 e6 h4 gxh4 c4 Bc5 b4 Qg5 d4 Qh5 d5 Qf7 d6 Bb7 b6 Ne7 b5 Bc8 b7 Bb6 c5 Ng8 cxb6 Qe7 dxe7 Kf7 e8B+ Kf6 g4 Ke5 f4+ Ke4 Kf2 a5 Kg2 h5 f6 a4 f7 a3 f8B a2 f5 Ra3 f6 Rb3 f7 Re3 Nc3+ Ke5 Ne4 Nh6 Qf3 Kd4 Rh3 Ra3 Nc5 Ng8 Bc4 Ne7 Na6 Ra4 Kh1 Nbc6 b8Q Bb7 Qa7 Nc8 Nb8 e5 Bca3 Ba8 Bg7 Rf8 Bh8 Bb7 Rg3 h3 Qb3 h2 Qb4 Ba8 Re3 Bb7 Nh3 Ba8 Nf4 Bb7 Nd3 Ba8 Qb1 Kc3 b7 Nd4 Qf1 Kc2 Bc5 Kc3 Nb4+ Kb2 Rae1 a1N N4c6 Nab3 Ra1 Nd2 Qf6 Nf1 Raa3 Rg8 f8Q Rg5 Ra1 Rf5 Bg6 Rf2 Q6f7 Re2 Bb1 Re1 Kg2 h1R Q8e7 Rh2+ Kg1 Rg2+ Kh1 Rb4 Ra5 Ra4 Qd6 Nb3 Qd2+ Ka1 Qb4 Rc2 Na6 Nd4 b8R Nd6 Rg8 Nc8 Nb8 Rg2 Ne7 Be4 Nec6 Rge2+ Kg1 Bg2 Ra6 Bh3 Kh1 Nf5 Qb6 Rf2 Ra8 Nd4 Qa7 Rh2+
1Rq5/5rq1/1ppRQ1RN/1pr3nP/K2n1p2/N1P1B1q1/3R1Q2/k3N1BQ w - - 0 1 illegal: No possible last move, all moves rejected
4R1N1/2N3kp/RP5p/1q2nB2/pn1Q1b2/R3R2B/p1n2B1P/Q1n1KQ1n w - - 0 1 illegal: Other
r1RrNB2/3n4/N4N1B/1K1Qb1Rn/3Qb1P1/bQqP1kBr/4n2q/2q2B2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 b4 e5 g4 h5 b6 c5 d6 a5 b7 h3 f6 a4 b5 h4 b6 h2 f5 h3 d7 a3 f7 a2 f6 Ne7 Nf3 Ng6 Qb3 Nf4 Kb5 c4 Nd4 c3 Nf5 c2 d3+ Kf3 Ng7 e4 Nc3 e3 Nd5 e2 Ne8 Nh5 Bh6 e1Q Rc1 Qc7 d8Q Ba3 f8B a1B f7 Nd7 b8B Bb7 Ndf6 Be4 b7 Qcc3 Bg3 Qed2 b8N Qg2 Rd1 c1N Na6 Ne2 Rc1 Qf2 Rc2 Qe3 Qb6 Qc1 Qd4 Rg8 Bfd6 B1b2 f8Q Ba1 Qff7 Rf8 Nec7 Rfd8 Qfd5 B1b2 Bdf8 Ba1 Rg1 h1Q Nce8 h2 Rg2 Qg1 Ra2 h1R Rb2 Nef4 Rgc2 Ne2 Ra2 Rh3 Rab2 Q3e1 Rc8 Qh2 Rbc2 B1b2 R2c5 Qcc3 Q5c4 Qcc1 Rg5 Bc3 Qdd5 Be5 Qcd4 Qec3
1b1R1r2/bQ3B2/2qQNNnK/1n4qn/2R1BP2/1bNr1PB1/q2k1r2/6RR w - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 f5 e3 f4 exf4 Bh6 Bd3 Bg7 Bf1 Bf8 f3 Kd7 Ke2 Kd6 Ke3 Kc5 g4 Kb4 d4 e5 b6 a5 g5 c5 b7 h5 b3 c4 d6 a4 d5 a3 d7 e4 g6 a2 g7 h3 d6 c3 Rh2 c2 Rf2 h4 Ne2 h2 Ng3 h1N Bd3 h3 Rf1 h2 Nh5 Qg5 d8N Ra3 d7 Na6 Nf6 Ne7 g8B Nc7 Bf7 Ng3 b8R+ Bb7 Re1 h1R Rc8 Nh5 Ne6 Rh2 d8R Bd5 Rh1 Re2+ Kd4 e3 Be4 Rg8 Bb2 c1Q Qd3 Rc2 Qd1 e2 Bc3+ Kb5 b4 e1B Bd2 Bf2+ Be3 Ka4 b5 Kb4 b6 Rac3 b7 Bb3 Qd3 Bg1 Bf2 Rb2 Bh7 Nb5+ Ke4 Qc2 Bg3 Ba7 b8Q Bg7 Ne8 Rf8 Qb7 Be5 Nf6 Beb8 Rc5 Qc1 Qd6 Rd3 Bf5 Rf2 Ke5 Qh4 Be4 Ng6+ Kf5 Qc2 Na3 Qc3 Rag1 a1Q Nb1 Qa6 Rdc8 Qa2 Rd8 Bd1 Rc7+ Kb3 Rc5 Kc2 Rc7 Qcc4 Nc3 Kd2 Rcc8 Bb3 Rc6 Ne5 Rcc8 Qd5 Rc5 Qc6 Rc4 Ng4 Kg6 Ne5+ Kh7 Ng6 Kh6 Qg5+
k1Kn1n1q/5n1Q/1R1Bb1r1/q4bQ1/P3N3/3N3N/r2BQPr1/bRQB3q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 Ke5 b5 d4 Kb7 h4 g5 a3 g4 h6 c4 d6 b3 h7 b4 h5 b2 f6 g3 d7 b3 Ke6 g2 f7 c3 d5 c2 d6 Nf6 h6 Nc6 Bd2 c1N Be2 Rg8 h8N Nd3 h7 Rg6 Qc1 Nde5 Rh6 Bg7 f8B Nf7 Nh3 g1R Bd1 R1g2 Nc3 b1Q Ne4 Qa2 Rb1 b2+ Bb3 Qa1 Ba4 Qa5 Bd1 Rb8 a4 Ka8 Rh5 Rb3 Rb5 Ra3 Rb4 Ra2 Rb6 R6g5 Ng6 R5g4 Ne5 Rg6 Nc5 Bh8 Ned3 Ncd8+ Kf5 Bg7 h8Q e5 Qh7 e4 Be7 e3 Bf8 Nd5 Ne4 e2 Be7 e1Q Bf8 Ne6 d8Q Qh1 Qg5 Ned8+ d7 Nf6+ Bc5 Ba6 Qe3 Bc4 Qe2 Be6+ Kf4 Nh6 Ke5 Bh8 Kd6 Nhf7+ Kc7 Bg7 Bd6 Bh8 Qc4 Bg7 Rc1 b1B Kc8 Bc2 Rcb1 Bh8 Ndc5 Bd3 Qc1 Qd4 Nc3 Bdf5 Nd3 Qh4 Ne4 Bg7 Qg8 Qh8 Qh7 Nd5 Nhg5 Ba1 Nh3 Nf6 Qc5 Nb7+ Bf8 Bc4 Ng3 Be4 d8Q Nd7 Bd6 Bf5 Ne4 Bce6 Qc1 Qb4 Bf8 Qa5 Qg5 Nbd8 Bd6 Nf8+
1q4qN/1rn1r3/Q1qB1N1N/1R3RK1/P1k1bB2/Q3PbbB/1r3R2/2n1N1n1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg3 c5 Kh4 g5+ Kg3 b5 h4 f5 d4 g4 Kf4 g3 a4 b3 d6+ Ke6 h6 Kd5 e6 g2 h5 b2 d7 b4 e7 b3 e8Q c4 h7 c3 h6 c2 Qg6 Nc6 Ra2 Na5 Qa6 Ne7 Qdd3 Bb7 Nf3 g1N Kg5 f4 Ne1 f3 Rh5 f2 Bf4 c1Q e3 Rb8 Bh3 f1B Nd2 b1Q Ne4 b2 Qa3 Bd3 Bd6 Qe8 d8N Nb3 Nf7 Qcc6 Bf4 Nc1 Bd6 Bb5 Nf6+ Kc4 d5 Bg7 Bf4 Qg8 d6 Nd5 d7 Nc7 d8B Ba8 Be7 Rb7 Bed6 Bf8+ Kh4 Bg7 Rf5 Bf8 Ng4 Be7+ Kh5 Bh4 Nf6 Bf2 Re5 Bg3 Rf5 Qb8 Kg4 Re8 h8N Re7 h7 Qc2 Nh6 b1R Kg5 Q2g2 Rf2 Rb2 Ng6 Qgd5 h8R Qdg8 Rh7 Qcd5 Rg7 Qde6 Nh8 Qec8 Qa7 Bc6 Rb5 Bf3 Qa6 Rb6 Rg6 Bae4 Rg7 Rb7 Rg6 Qge8 Rg8 Qc6 Re8 Rf7 Ree5 Re7 Rf5 Qg8+
1B3q2/1Qq2bPB/1N1b1q1Q/1R5K/1nr5/kNR1NRPQ/6r1/rnNn3b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 e4 Kc5 d4+ Kb4 e5 h5 e6 a5 e7 f5 e8N c5 g3 c4 b6 c3 d6 h4 d7 a4 b7 a3 g6 h3 g7 a2 d5 h2 d6 c2 Qd2+ Ka4 b4 Rh6 b5 Nf6 b6 Ng4 Ne2 Qg5 d8Q Nc6 b8N Bd7 b7 Be7 Qb6 Ra6 Nc7 Nb4 Nd5 Rh4 Ne3 Be8 d7 Bf7 d8Q Bd6 Qh8 Qf6 Nd7 Nf2 b8R Nd1 Qb7 Rg4 Bb2 c1Q Qh3 Qc7 Nc1 Ra5 Rg1 h1B+ Rg2 Rc5 Bd3 Rc2 Bd4 Rh4 Ba7 Rc4 Rc8 Rh8 Bb8 Rf8 Nc3+ Ka3 Rb1 a1R Ne4 Re8 Nec5 Re5 Nf1 Re2 Qe3 Rec2 Nb6 Rd2 N5b3 Rb2 Bc2 Rba2 Ke2 f3+ Kd2 f4 Re8 f2 Ke2 Qd4 Kf3 Nd3 Kg4 Bg6 Rf8 f3+ Qf4 Be8 Ne3 f1N Nc5 f2 Rb5 Nd2 N5b3 Nb4 Bh7 f1Q Rh2 Nb1 Rc2 Rb2 Rc3 Rg2 Rf7 Qf2 Kh5 Qe5+ Qg5 Qee7 Qg6 Qf8 Rf4 Bf7 Rf6 Bg8 Qh6 Qf4 Rf7 Qe5+ Rf5 Qef6 Rf3 Bf7+
q3b3/1k2PBb1/N1Rr4/K1q2rRB/B1Q2qRQ/n1P3nN/2n5/1b2r1BN w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 f5 e4 d5 b4 Kd7 g4 Kc7 e6 h5 g6 a5 g7 d3 Kc3 a4 b6+ Kc6 b7 f4 e5 a3 g5 f3 g6 d2 Qe1 d1Q Be2 h4 Be3 h3 Qh4 a2 Nd2 f2 Bh5 f1Q e7 h2 e8B+ Bd7 e6 Rh6 e7 Qf4 Rc1 Na6 b8Q a1N Qc8+ Nc7 Ne4 Nf6 g8B Ra5 Nh3 Qg1 g7 d4+ Kc4 d3 Bgf7 d2 g8R d1B Rg5 Qgf2 Rhg1 h1R R1g4 Rf5 Kc3 Qg1 Nef2 Ne4+ Kc4 Bg7 b5+ Kd6 Kb4 Ng3+ Ka5 Bc6 Qa6 Qa8 Bd7 Bf3 Bde8 Be4 Bd7 Re6 Ba7 Kd5 b6 Kc5 Bde8 Rd6 Qe2 Bd7 b7+ Kc6+ Ka4 Re5 b8N+ Kb7+ Kb4 Rf5 Na6 Bb5 Ka5 Bed3 Nd1 Qgd4 Ndf2 Re1 Nh1 Qde5 Bg1 Bc6+ Bd5 Be4 Bef7 Nb5 Bb3 Be8 Ba4 Qd4 Rb1 Qdf2 Rb3 Qd4 Rc3 Qda7 Rc6 Qc5 c3 Bb1 Qa2 Nc2 Qc4 Nba3+
3qqn1Q/PRrQ3R/Q2bR2R/B2B3N/2b3Pn/2bNq2B/k7/2r1nK1r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 f6 b5 a5 h4 f5 e4 a6 b3 a7 b4 d6 b2 d5 e3 d7 b3 d6 e2 Nf3 h3 Bd2 h2 Bh3 c4 Nc3 b1R Ne4 b2 Ba5 c3 Ng3 c2 Nh5 c1B Qd3 Nh6 Qa6 Bd2+ Kf2 e1N Kf1 Rc1 Rb1 Qe8 d8Q Bc3 d7 Bd6 Qc7 Rh7 d8R+ Nd7 Qcb7 Qe3 Rh8 Rg7 Qbb5 Nf8 Rh7 Be6 Qd3 Bc4 g6+ Ke8 f7+ Kd7 f6 Ke6 Ne5 Nf5 Rh6 Nh4 Rh7 Rc8 Rh6 Rg8 g7 Rh8 g8B Rc7 Rh7 Bd5 Qd2 Bc4+ Nd3 Kd5 Rh6 Bb5 Qd1 Kc4 Qd2 Kb3 Rh7 Nfg6 f8R+ Bc4 f7 Ka2 Re8 Nf8 Rh6 Rh7 Ree6 Rh8 Qg2 Rh7 Qgc6 Rh8 Qd7 Rh7 Rg1 Rh8 Rg2 h1Q+ Rg1 Qa8 Rh1 Qd8 Rh2 Nfg6 f8Q Rh7 Qf6 Nf8 Qh8 Rc2 Rc1 b1Q Rh1 Qb4 Rb1 Qbb8 Rb7 Qa8 Re4 Qac8 Bd5 Rc1 Re5 Qe8 Ree6 Qcd8 Ng3 Rf7+ Rhf6 Nhg6 Bhg2 Rg7 Rh2 Rf7 Rh7 Nh4 Bh3 Qc5 Bf3 Qe3 Rfh6 Rf5 Nh5 Rb5 Reg6 Rb2 Bd5 Rh2 Re6 Rh1+
b1RN2b1/3Qr2b/5b2/1NBbn1r1/1nq3Pr/5BBQ/1P2RQnK/Bk5N w - - 0 1 illegal: Other
qRB5/1rBb1B1Q/1n2nN2/bkP5/Nn2R1K1/2R1Q1bn/N1P1r3/r2n1B2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 f5 Kf3 a5 g4 d5 b4 Kd7 e4 h5 e5 a4 g6 a3 g7 h4 g5 d4 b6 Kc6 b7 a2 e6 h3 g6 h2 e7 d3 e8Q+ Bd7 Qe4+ Kb5 Qe3 Ra7 Qe4 Nh6 g8B Nc6 b8N Rb7 g7 Nf7 Bb2 Bd6 Bh7 Re8 Ne2 d2 Qc1 d1N g8B Re7 Rg1 h1N Rg4 Nhf2 Be5 Nh3 Qce3 Qc8 Bg6 Nfd8 B8f7 Ne6 Rg3 Qf8 Bh5 Bc7 Bg4 Ba5 Bc7 Qh8 Qe5 Qc8 Qh8 Qf8 Qh7 Qe8 Na6 Qa8 Nd2 Re8 Rc1 a1B Ne4 Be5 Nf6 Bd6 Ra1 Re7 Ra4 Be5 Kg2 f3+ Kh2 f2 Kg2 f4 Kf3 Kc4 b5+ Nb4 b6 Kb5 Bf5 Bd6 Kg4 f3 Nc3+ Kc6 Be2 f1R Bc4 Re1 Bf1 f2 Rf3 Re2 Rg3 Ra7 b7 Bf4 Rf3 Bg3 b8R Rb7 Ra1 Re8 Na4 Kb5 Ra3 Rd8 Rf4 Rh8 Rc3 Rf8 Bg2 f1N Re4 Nd2 Bf1 Rd8 Qf3 Nc4 Qe3 Nc6 Nb4 Nb6 Na2 Nb4 Qeh6 Be8 Qe3 Rd3 Rcc4 Ra3 Rc3 Bc6 Nc1 Ra1 Na2 Ng7 Bd7 Ne6 Bc8 Bd7
NrQB2b1/B1R1N3/1B1kBP2/r5b1/1b1n3q/1r1RbK2/n1P2R1b/NQ5n w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 e5 h4 Ke7 f4 g5 b4 d5 h6 a5 h5 a4 f6+ Kd7 f5 g4 b6 g3 f7 a3 b7 g2 b5 d3+ Kf3 a2 b6 d2 h7 d4 h6 d3 Ne2 g1B Rh3 Bb4 f8R Nc6 b8B Qe7 b7 Bh2 Nbc3 Nf6 Nd5 Ng4 Nd4 Ra5 Nb3 Nf2 Nc7 Nh1 Na8 Qh4 Ba7 Kd6 b8N Be6 Rg3 Bc5 Bh3 Bg8 Bb2 Bb4 Qb1 d1R Bbd4 d2 Bdb6 Bc5 Rc8 Be3 Rc7 Rc1 Rg2 d1N Rf2 Nc3 Bg4 Rd1 Bh3 Rd3 Bg4 Nb4 Nc6 Ne2 Ne7 Rc3 Qe1 Rd3 Rd1 a1B Qf1 Bad4 Na1 Rb3 Rd3 Na2 Qb1 Bg5 Bh3 Be6 Bg4 Rb8 h8B Bg8 h7 e4+ Kg2 e3 Bf6 Nec1 h8Q e2 Kf3 e1B Bh3 Ne2 Bg4 Bc4 Qc8 Bed2 Bh5 Bg8 Bf7 Bb4 Be6 Be3 Ng6 Bg5 Bd8 Ra4 f6 Ra5 Bd5 Bdc5 Ne7 Bce3 Be6+ Nd4+
2N3Bq/rQRR1P1R/B3rPn1/B1r2K2/1b1r2r1/3QB1Nn/b2N4/kb1n4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 b6 h3 d7 h4 g6 c4 f6 h2 g7 a4 b3 h3 f5 a3 d5 c3 d6 a2 b7 c2 f7 Nc6 b8B Nd4 f6 Ra4 Nd2 Kc3 b4 Rh4+ Qg4 Nf5 Bg2 Nge7 g8B Ne3 Qf4 Ng6 Bf1 Nd1 Ba6 Rg4 Kf5 e4 b5 e3 b6 e2 b7 e1R Qe4 Rd4 Bc7 Qe8 Qe7 Re6 d8Q Bd7 Rb1 a1R b8N Bc6 d7 Bd5 Rb5 Ba2 Nc6 Bb1 Rb7 Ra5+ Bb5 Ra7 Ba6 Ba2 Bb6 Bb1 Rc7 Ba2 Ba3 c1R Bac5 Kb2 Ne2 Ka1 Ba5 Rcc4 Ng3 Rc3 Re1 h1B Bcb6 Bhd5 Rh1 h2 Qb4 Rc2 Ne7 Bb1 Nc8 Bda2 Bc5 Bd6 Qb7 Qf8 Bcb6 Bb4 Bc5 Rd3 Be3 Rdd4 Qe8 Qg7 d8R Qh8 Qeb5 Rcc6+ Qd3 Rc1 Rf1 h1N Rdd7 Nhf2 Rh1 Rcc6 Rh4 Nh3 Rh7 Rc5+
K7/qn1NQP1n/b2P3B/1B3Nn1/1R1rnr1Q/R5Br/2knb1N1/3NQ1b1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 Kd5 c4 f6 c3 d7 h3 b3 h4 b6 c2 g6 a4 g7 h2 b7 e4 f7 h3 f5 a3 f6 e3 Ba6 a2 Bb5 e2 Bh6 c1N Nf3 e1N Nh4 Qe7 d8Q Nf3 Ng2 Na6 Kc6 Ng5 b8N Qa7 d5 Nc5 Nc3 Ba6 Qe1 Nb7 Nd7 Bc5 f8Q Ne2 f7 Nf6 g8N Nfh7 Nd1+ Nc3 Qf6 Rd8 Ne7 Bg1 Qf4+ Ka3 b4 Kb3 Qfh4 Nce4 Nf5 Kc2 Qe7 Nd2 Rb1 a1R Rb3 Ra4 Ra3 Bc5 Rf1 h1N Rf4 h2 Kc7 Bg1 Rd4 Qb8+ Kb6 Qc7+ Ka7 Nf2 Re4 h1B Rd4 Rdg8 Re4 Rg6 Rd4 Rf6 Re4 Nf8 Ka8 Nfh7+ Bf8 Rd6 Qh6 Qc5 Nf4 Ngf3 Be2 Rg8 b5 Qd4 Qhh4 Rg2 Bh6 Rg3 Bf1 Nfg5 b6 Nd8 b7 Bf3 b8B Nb7 Ng2 Rh3 Bb5 Be2 Nf8 Rd7 Bg3 Rd6 Nd7 Qb6 Ree3 Rf4 Reb3 Nfe4 Rb1 Rc6 d6 Rc4 Rbb3 Rd4 Rb4 Qa7+
1Rn1qn2/1RN1NB2/Q1R1n1R1/rqN1BQ2/Q6b/n2r1P1K/r3P3/1nkb4 w - - 0 1 illegal: No proof kernel
3N3R/1Q1qn3/3N4/1bq2n1B/1K1Rr3/nBQNPN2/1bPrqQ2/B1qk2q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 Ke6 h4 Kd5 e3 Ke4 e6 a5 e7 d5 e8B f5 h6 g5 h5 d3 Kc3 d2 h7 a4 h6 f4 b6 g4 b5 g3 b7 g2 b6 f3 Bfb5 f2 Bbc6 f1Q Qh5 d1N+ Kd2 a3 Ne2 g1Q Qf7 a2 Bb2 Qc7 Bc3 Bg7 Nf4 Kf3 Ba4 d4 Bb3 Nc6 b8Q d3 b7 Nb2 Bf6 Qff2+ Kc3 d2 Bd4 d1Q Nd2+ Kg4 Qa7 Bd7 b8N Nce7+ Nc6 Rd8 Qb7 Nc4 Kb4 Na3 Rb1 a1Q Be5 Qdf3 Rd1 Qd5 Bd4 Qc1 Ba1 Bb2 Qf6 Kg3 Qc3 Qc8 Nf3 Nf5 Bg6 Re8 Nd8 Re5 Rd4 Bb5 Nd3 Nge7 Qe1 Rg8 h8N Re4 Nhf7 Qcd7 Qc3 Kg2 h7 Kf1 h8Q Ke2 Nd6 Kd1 Qh4 Rg7 Be8 Rg2 Qg3 Qfe1 Rh8 Rd2 Bh5 Qe2 Qf2 Qc5+
q1b1q2B/N7/3N1R1q/r6k/QKN1QP1B/1R4b1/QN1q1PB1/2nq1brn w - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 f5 e3 f4 exf4 Bh6 Bd3 Bg7 Bf1 Bf8 g4 Kf7 d4 Kg6 Kd2 h5 Kc3 c5 b4 a5 d6 e5 d7 e4 d5 a4 b6 c4 g5 h3 d6 h4 b5 e3 b7 h2 b6 h3 Qe1 e2 Bg2 a3 Nd2 a2 Rb1 a1Q+ Bb2 Ra5 Ngf3 Na6 b8N Nh6 b7 Be7 Nc6 Rg8 b8Q Kh5 g6 Qe8 d8N Nf5 g7 Nb4 d7 Ng3 Na7 Bh4 Nf7 Nd3 d8B Nc1 Kb4 c3 N3e5 c2 Ndc4 Qa2 Rg1 h1B Nfd6 h2 Qa8 Qa1 Qe4 Qa2 Qc3 e1Q Nd3 Qd1 Qa3 Qa1 Qa4 Qa2 Bf1 Bg2 Be7 Bgh3 Bg2 h1Q Be5 Qh2 Rb3 Nh1 Ndb2 Bg3 Bh4 Qa1 Bc3 Qa2 Re1 Qd2 Qb7 Qd1 Re6 Qd2 Rf6 Qa1 Bc6 Bf1 Bg2 Qh3 Qe4 Qhe6 Rf8 Qh6 Rf7 Ne2 Rf8 c1Q Rf6 Qdd1 Be5 Qcd2+ Bc3 Rf8 g8Q Nc1 Qge6 Rg8 Q6d5+ Rg5 Qa8 Qb1 Qa2 Qbd3 Qac6 Qd5 Qca4 Qa8 Bf3+ Rg4 Rf7 Bh2 Rf8 Q2e2 Bh8 Qe3 Rf6 Qed4 Qeb1 Qdd5 Be4 Rg1 Bg2 Bg3 Qe4 Q5d2+
QrQ2rbR/5q2/r3QRrK/1N1n1qP1/3n1NP1/5k1N/1rbR2N1/BB2b3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 g4 Ke5 b4 c5 e4 a5 d6 h5 b6 f5 b5 a4 d7 c4 b7 h4 b6 c3 Bb2 h3 Ra2 h2 Ba1 a3 Bd3 Rh7 Qe2 Qe8 d8N Bb4 Ne6 Ne7 Nh3 Rg7 Rf1 Nbc6 b8R Qf7 b7 h1B+ Qg2 Bd7 Rh8 Nd5 Bc2 Rb8 d4+ Kd6 Rb2 a2 Na3 Ba5 Bb1 c2 Rf2 c1R Rbd2 Rc2 Rf1 Rb2 e5+ Ke7 Kf2 f3 Kg3 f4+ Kh4 f2 Nb5 f3 Nef4 Bf5 e6 Bc2 Rd3 Qg8 Kh5 Qf7+ Kh6 Be1 Rd2 Qf5 Na3 Kd6 e7 Qf7 e8Q Qf5 Rg1 f1R Qe6+ Kc7 Nb5+ Kb6 Qc8 f2 Qe4 Qf7 Qef5 Bhe4 Qf6 Bh7 Ng2 Bg8 Qff5 Nc3 d5 Kc5 d6+ Nd5 Qce6 Nd4 d7 Kc4 d8N Kc5 Qd7 Kc4 Qfe6 Qf5 Re2 Kd3 Qc8 Qf7 Qb6 Qf5 Rd2+ Ke4 Ne6 Kf3 Rh1 Rg1 Nef4 f1Q Qa6 Qc4 Rh2 Rf1 Qae6 Qc7 Rh1 Qcf7 Rg1 Rf2 Rf1 Rb3 Bc3 a1R Bb2 Ra6 Ba1 Rba8 b8Q Rb2 Qbb7 Rb8 Qa8 Qe5 Rh7 Kg3 Ng6 Qa7 Qac6 Rf8 Rh8 Qf7 Rf6 Qf5 N6f4 Kf3 Qa8 Rg6+
4BNK1/1QR3nn/B2b1qb1/2QPNqq1/b1Q1Rr1q/1r4BB/2Nk2P1/4q3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 f5 e4 h5 g6 a5 b6 c5 d6 f3 d7 f4 Ke6 c4 Kf7 f2 e5 f3 b3 h4 g7 c3 d5 h3 b7 h2 e6 c2 e7 a4 e8B a3 Ba6 f1B Bf4 c1Q Qe2 a2 Na3 Kc3 b4 f2 b5 Nc6 b8Q Bd6 b6 Nf6 g8B Nd4 b7 Qe1 Nc2 Rh4 Rc1 a1Q Bg3 Ne6 Nf3 Ng7 Ne5 Nh7 Qc4+ Kd2 Qbc7 Bd3 b8Q Qg5 d8N Bd7 Q7c5 Ba4 Qb7 Rb8 Ne6 Qd4 Rf1 h1Q Nf8 Bf5 Rg1 Rf4 Rf1 Qh3 Rh1 Qhh6 Rh4 f1Q Rg4 Rf2 Re4 Qhh4 Qb2 Rf4 Qb7 Nf6 Bh7 Qdf2 Bg6 Nh7 Kg8 Qd3 Bgf7 Bg6 Be6 Qdf3 Bh3 Qfg4 Rb1 Q4f5 Rb6 Qf3 Rc6 Qff6 Rc8 Qfg4 Rc7 Q4f5 Qa8 Rb4 Qb7 Rb3
2N2B2/r3Rb2/k2nbn2/PR6/RQBNQq2/1Pqbr1B1/2Q1q2R/b5Kb w - - 0 1 illegal: No proof kernel
2QqQ2r/1RQn3N/3BB1rP/1n6/R2P3r/1RrB3b/b4QN1/bq1k1Kr1 w - - 0 1 illegal: No possible last move, all moves rejected
Qn2B1Q1/2Kb1Q2/1NR3P1/3n3n/nB2Rn1q/bk3N2/rr1Q1qP1/R1b2N2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 f5 e4 h5 g6 a5 b6 c5 b7 a4 d6 f3 d7 f2 d5 a3 d6 f4 Nd2 f3 Bb5 f1Q Rh4 f2 Ngf3 c4 b3 a2 Ba3+ Kc3 b4 Ne7 Ke6 Nd5 e5 Ra4 Re4 h4 Qe1 Qg1 Nf1+ Kb3 Qd2 h3 Bc6 h2 b5 h1N b6 c3 Bb4 c2 Bb5 Na6 b8N c1B b7 Ng3 Bc6 Nh5 Bb5 Nc3 Bc6 Ne2 Kd5 Nc5 e6 Qh4 d8Q Na6 e7 Bd7 e8Q Nef4+ Ke5 Bg4 Nd7 Nb8 Nb6 Bd7 Qf6 Be7 Qef8 Ra6 Q8g7 Rc8 Bb5 Rc2 Bc6 Rb2 Qff7+ Nd5 Qgg8 Nf4 Rb1 a1N Bb5 Bf5 d7 Ra2 d8R Bd7 Rc8 Bf8 Rc6 Be7 Ne3 Qe1 Nf1 Qe3 Ba5 Ba3 Bb4 Qe2 Ne3 f1N Kd6 Ng3 Nf1 Nc2 Ra1 Ne1 Qf6 Ned3 Qff7 Na6 b8Q Ndc5 Qbd8 Qf2 Qa8 Nb8 Nc4 Ne3 Kc7 Na4 Nb6+ Nc4 Rd6 Ngh5 Rde6 Ne3 Bc6 Bc8 Be8 Bd7 Rc6+ Ned5+
3b3B/qq5N/r1Rn1P1Q/n1NR3B/2NQ1rQ1/rb6/2PB1rr1/1Kb2kB1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 b4 Kf6 f4 g5 h4 e5 h6 a5 h7 d5 h5 g4 h6 g3 b6 g2 b7 d3 b5 a4 b6 e4 Nc3 a3 Nb1 e3+ Kc3 e2 Ra2 e1B+ Nd2 d4+ Kb3 Nc6 b8Q Ra6 b7 Qa5 Rh5 Nge7 Qg4 Be6+ Nc4 d2 Qd6 d1Q b8N d3 Nf3 g1R Nd4 d2 Be2 Nc8 Nf3 Be7 Ng5 Rf8 Bf3 Rg2 Qd4+ Ne5 Ra1 a2 Kb2 Nd6 Be2 Bd8 h8Q+ Ke7 h7 Nc6 Rb1 a1R Nd7 Ra3 Nc5 Bg3 Ra1 Qh1 Kb1 d1R Bf3 Rdd2 f6+ Ke8 f5 Bf4 f7+ Ke7 Bd1 Rdf2 Bd2 Qa4 Qhg7 Na5 h8B Qd7 Qh6 Qa7 Nh7 Bg5 Ne3 Bb3 Nc4 Be3 Bc3 Bc1 Bd2 Qe1 Rg5 Qe4 Ra2 Qeb7 Rb2 Re8 f8B+ Kf7 f6 Re4 Rd5 Ref4 Nd3 Ne8 Bc5 Nd6 Qg3 Ke6 Bh5 Ba4 Rb6 Bb3 Nce5 Kf5 Rc6 Rh2 Qg1 Rhg2 Bb6 Qf7 Nc5 Qfd7 Bf7 Qdb7 Nc4+ Kg4 Bh5+ Kg3 Qd1 Kh2 Qg4 Kg1 Ne4 Be7 Qb2 Kf1 Bd4 R2f3 Bg1 Rff2 Nc5 Bd8 Qe5 Nc8 Qd4 Nd6
1N2b1B1/5B1q/RQP2b1b/rqPbBk1B/Q7/1n1r1N2/RKb2R2/nN2n3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kd2 Ke7 Kc3 Ke6 b4 h5 g4 f5 e4 a5 g6 d5 g7 d4+ Kb3 h4 c4 f3 b6 d3 g5 d2 e5 f2 b5 h3 c6 h2 c5 a4+ Ka3 f4 g6 f3 b7 Qd7 b6 Ra5 Bb5 f1N Qe1 d1B Nh3 f2 Bg5 Na6 b8N Nf6 g8B+ Kf5 e6 Qh7 e7 Bc2 e8Q Nb4 g7 Nd2 b7 f1Q Bf4 Nd7 Ng1 Nb3 Qd8 Ne5 Qb6 Nf3 Ra2 Bd7 Kb2 Be8 Qh4 Ne1 Bf7 Qe2 g8B Bh6 Be5 a3+ Kc3 Qf1 Nf3 Qe2 Ba4 Qb5 Rf1 h1B Rf2 Bg2 Na6 Bh1 b8R Bg2 Ra8 Bh1 Rb2 a2 Nb8 a1B Bh5 Bg2 Bgf7 Rg8 Ra6 Rg3 Qd4 Bf1 Qd1 Bc4 Qd4 Bd5 Qc4 Nd4 Bb3 Rh3 Ba2 Rg3 Qb3 Rh3 Qa4 Nb3 Bg8 Nc1 Bd6 Bdf7 Bf4 Be4 Bc4 Nbc2 Bd5 Bd3 Nfd2 Re3 Nf3 Be4+ Kd2 Nb3+ Kd1 Be6 Ra2 Bf6 Be5 Nca1 Bc4 B6d7 Bcf7 Be6 Nd7 B6d5 Nb8 Nd4 Kc1 Ndb3+ Kb2 Bc2 Rg2 Rc3 Rf2 Rd3
Bn3q1K/1b5N/1P3R2/R1rRN3/Q2b1nQ1/2q1n1B1/1k2nP1N/1BRn2rr w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 b4 h5 g4 a5 d4 a4 d6 c4 b6 h3 d7 h2 b7 c3 d5 e6 b5 h4 d6 a3 b6 h3 Bg2 a2 Nf3 c2 Ne5 Nh6 Nd2 Ra5 Ndf3 Bg7 Qd4 Rf8 Qa4 Rg8 Rf1 h1R Nh2 Qe8 d8R Rc5 d7 Qf8 Ke4 Bh8 Bf4 c1N Bg3 Nd3 Rfc1 Nb2 Kf4 Nd1 g5+ Kg7 g6 Kf6 g7 Ng4 Re8 Nge3 d8R Re1 Nhf3 h2 Rd5 h1N Nh2 Rf1 Red8 Re1 R8d6 Rg1 Rab1 a1Q Rb5 Qc3 Ra5 Nf1 Kg4 Nfe3+ Kh5 Re1 Bf4 Ng3+ Kh6 Rh1 Kh7 Ne2 Be4 Nd7 b8Q Bb7 Qc8 Nb8 Nf7 Qe8 Bb1 Qf8 Rd7 e5 Bg3 e4 Ne5 Kg5 f6 Kf5 f7 Ke6 Rd4 Kf5 Rb4 Kf6 Rbb5 Ke6 Re7+ Kd6 Qg4 Kd5 Qb3+ Kd4 Re6 Nd5 Rg6 Ndf4 Rf6 e3 Qa3 Ng1 Qb3 e2 Qc2 e1N Qa4+ Rc4 Rc5 Ne2 Rcb5 Ng2 Rc5 Qe7 f8N Nge3 Rcb5 Qcb4 Rc5 Rc2 Rd5+ Kc3 Kh6 Kb2 Nh7 Re8 g8B Rc5 Bf7 Rg8 Be8 Qc3 Bc6 Ba6 Ba8 Bb7 Nf8 Bg7+ Kh7 Qd8 Re6 Bf6 Rc6 Rg7+ Kh8 Qd6 Nh7 Qe7 Nf7 Bd4 Ne5 Rg5 Rg6 Qf8+ Rg8 Qe1 Qf3 Ba6 Bh4 Rg3 Qg4 Rgg1 Bg3 Qf5 Rc8 Qc3 Rc6 Bb7 Rcd6 Qf7 Rf6 Qf8+
nQ2K3/3NR3/1Pn1NqqQ/BR1b1BbN/2Nn1Bq1/1n5n/3P3R/kr4r1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 c5 Ke4 h5 Ke5 a5 g4 h3 b4 h4 f4 a4 d6 a3 d7 h2 f6 h3 g5 c4 b6 a2 b5 c3 b7 c2 b6 Nc6+ Kf5 e5 b8R e4 Be2 e3 Na3 Bh6 Bb2 c1N Bd3 e2 Be5 e1Q Ne2 Qg1 Rb7 Nb3 Rb1 a1N Nc4 Nc2 Ng3 Ra1 Nh5 Qe8 Rc7 Bb7 d8B+ Qe7 Bc3 Qd4 Rb2 Rb1 Ba5 Rh7 Qg4 Rg7 Qh4 Qd6 Rd7 Rg6 Bc7 N2d4+ Kg4 Ke6 f7 Kd5 f8N Kc5 f5 Qef6 Re7 Rg7 g6 Bg5 Bb8 Kb5 Nd7 Ka4 Be4 Qde6 Bf4 Ba8 Rg1 h1Q Rg2 h2 Bd3 Qhe1 Bc2 h1N Rh2 Q1e4 Qh3 Rh7 g7 Qg6 Qh4 Q6e5 f6 Nf2+ Kg3 Qe6 f7 Nh3 f8N Nf6 g8Q Ne8 Qh8 Qe6f5 Ne6 Qff6 Kg4 Nc7 Qb8 Rg7 Bd3 Bb7 Bc2 Na8 Bd3 Nc1 Rb5 Ncb3 Bc2 Qe1 Bf5 Qe4 Ng3 Rg8 Qh6 Rg7 Nh5 Rg8 Nce5 Ka3 Nc4+ Ka2 Nhg7 Qh7 Kh5 Ka1 Nec5 Qd6 Nce6 Qh8 Kg6 Qf3 Kf7 Qg4 Nef8 Qf6+ Ke8 Qh7 Nh5 Qhg6+ Rf7 Rg7 Ne6 Nb4 Nd6 Bd5 Nc4 Nbc6 Rb4 Qg3 Qd8 Qh7 Nef8 Bh4 Ne6 Rg5 Qc8 Qhg6 Qb8 Qf3 Rb5 Rgg1 Rb4 Qfg4 Rb5 Qgg7 Re7 Bg5 Qc7 Qh7 Qb8 Qhg6+
N1R2NR1/2rN2QQ/1PbP2r1/2r3Qq/Q3nr2/1Bb4q/1B3r1n/K3kbR1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 Kb2 e4 b6 a4 b5 e3 g5 c4 b7 e2 g6 e1R b6 a3+ Ka2 h3 f6 h4 f5 c3 g7 c2 f7 h2 f6 h3 Ba6 Rh7 Nc3 Re6 Qd2 Nd7 b8R Qe8 Rb1 Nc5 Bf1 Ra4 Qg5 Nh6 g8Q Ne4 Bb2 c1R Bc4 Ba6 Ka1 a2 Bb3 Ng4 Rc8 Bf1 Nf3 Bg7 f8N Qh5 f7 Rg6 Rg1 h1B Ne5 h2 Ned7 Rc2 Re1 Rf2 Re3 Bhg2 Rg3 h1Q Qh8 Q5h3 Qg8 Rh5 Qh7 Nh2 Qh4 Ra7 Qg4 Rc7 Nb5+ Ke7 Qf4 Rf5 Qg4 R5f4 Qd1 Rc5 Nc7 Kd6 Na8 Qh5 Qc2 Bf3 Qc4 Qg2 Qa4 Qgh3 R3g2 B3e2 Rg5 Bb5 R5g3 Bc6 Ne5 Ke7 d6+ Kf6 d5 Kf5 d7 Bf6 d8Q Bh8 Ng4 Bc3 Nf6 Ke5 d6 Kf5 Qa7 Ke5 Rg4 Kd4 N6d7 Ke3 Qg5 Ke2 Qa4 Ke1 Qf5 Rf6 Rg8 Rg6 Qg5 Rb5 Ne6 Bd5 f8Q Bd2 Ba3 Bb7 Kb2 a1R Qff7 Rc1 Nef8 Rc7 Qfg7 Bc6 Ka1 Rc5 Bb2 Bc3
3Nr2k/QN2Br2/P1NrBb2/QnK2R1b/6B1/n5PN/QR1r2q1/1q1r2n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 a4 b5 f4 h4 g6 h3 g3 b3 d6 c5+ Kd5 e5 d4 b4 a5 e4 d7 b2 a6 h2 Qd2 b3 Bh3 e3 Qa5 e2 Na3 b1Q Bg4 e1R Nc4 b2 Nd6 c4 Nh3 c3 Rf1 h1R Nb7 c2 Ra2 Rh7 f6+ Kh8 f7 Nc6 f5 Re2 f6 Na7 Rf5 Ne7+ Kc5 Rd2 d5 Bg7 d6 Qf8 d8N Rhd1 d7 Nb5 Nc6 Nd5+ Ne7 Qg8 d8N Ndc3 f8Q Ne2 f7 Ng1 Nec6 Bf6 Qe7 Bd7 f8Q Rf7 Qe2 Be8 Qfe7 Rd6 Be3 R1d2 Bg5 c1R+ Qc4 Rcd1 g7+ Kh7 Qb3 Qf8 g8B+ Kh8 Qec7 Qe7 Qcb6 Qee4 Qa7 Qg2 Qba3 Rc7 Bc4 Bh5 Be6 Rf7 Qb3 Qc1+ Qc2 b1N Rb2 N1a3 Qc4 Qb1 Qa2 Rc8 Bh4 Rcc7 Bg5 Rce7 Bh4 Re8 Bg5 Bg7 Be7 Bf6
qb4Qn/1k3BP1/1bn1r1Q1/r5P1/1rRN1RN1/B1RK1r1r/5N1q/2QbR3 w - - 0 1 illegal: No possible last move, all moves rejected
N1B4n/1R1N1RP1/B2b1Pb1/B2K1Q1b/k1n2q2/B2q1b2/nQ2bRr1/3r1N2 w - - 0 1 illegal: No possible last move
QNn2R2/2Q1P3/b1NR2Kb/1NQP3r/b1qr4/R4brb/Q3q2k/B3n2B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 b4 a5 g4 c5 d4 h4 e3 a4 g6 f3 g7 h3 g5 h2 b6 a3 g6 c4 b7 c3 b5 f2 b6 c2 Bb2 c1Q Qh5 a2 Nf3 Qe8+ Ne5 Ra4 Nc3 Bd7 Bg2 Na6 b8N f1B b7 Ne7 g8R Nb4 g7 Nd3 Nec6 Ne1 Kf4 f5 Kg5 f4 e4 Nc8 e5+ Kc7 e6 Kd6 Rg1 Ba6 Bh1 f3+ Kf6 f2 e7 f1B Rg6 Bfh3 Rh6 Qd8 Kg6 Qd1 Qf5 Qc7 Qg5 Rh7 Rh8 Qe2 g8Q Ra3 Qf7 Bg7 Rf8 Be8 Rb1 Rb3 Ba1 Ra3 Rb6 Ra4 Rh4 Rh5 Rb3 Bh6 Ra3 Qd7 Rf4 Qdg4 Rf1 Qc4 Rf2 Qge2 Rf6+ Kc7 Rd6 Bed7 Bb2 a1R Qf2 Rd1 Ba1 Rd3 Qd2 Rb4 Qa2 Rf3 Ne5 Ba4 Nec6 Rb1 Qg1 Rd1 Qg5 Rg3 Nb5+ Kb6 Rdd8 Rd2 d6 Rdd3 d5 Kc5 d7 Rd4 Qg4 Rc3 Qg1 Rb3 Be4 h1B Qe3 Bf3 Qc3 Bfg4 Bh1 Bf3 Qa5 Qc3 Qc7 Kc4 Qb6 Kd3 Qc5 Ke3 Rde8 Kf2 d8Q Kg3 Qc7+ Re5 Rd8 Kh2 Rd6 Rh5 Nd7 Rbb4 b8Q Rb3 Qa8 Qc4 Ndb8 Be4+ Kf6 Rg3 Kf7 Bf3 Kf6 Bg5+ Kg6 Bh6+
B6k/B3P1nq/1q1qRqPR/2b1R3/bQ2rQNN/5B2/n4bq1/3KRr1N w - - 0 1 illegal: No possible last move
N1R4q/nPK1N1qb/2n2q2/bkqP4/1BN1B2r/1BR2N1r/1q5Q/QQr5 w - - 0 1 illegal: No possible last move
Nb3R1B/P2r2qq/n1B3q1/Qn1R3q/3R1NQB/1k2P3/4br1Q/K1q3Bn w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 d4 f5 Kd2 c5 Kc2 b5 Kb2 g5 h4 f4 h6 f3 a5 b3 h7 g4 a6 f2 h5 g3 e6+ Kd6 h6 c4 a7 b4 e7 g2 e8Q Bg4 Nd2 Qa5 Qb5 Ne7 Rh4 Nc8 Nh3 g1Q Nf4 Na6 Bg2 f1N Qa4 Qc5 Qa5 c3+ Kb1 Rg8 h8Q b2 h7 c2+ Ka2 Ng3 Nc4+ Kd7 d6 Rg7 d5 Nh1 Be3 c1Q Bf2 Be7 e3 Be2 Bf3 Bf6 Be4 Be5 Rb1 Qg5 Bg1 Qd4 Ra1 Qh5 Rg4 Rf7 Rg8 Rb8 Rf8 Rb7 Rb1 Qd3 Bf3 Qdg6 Qd4 Qc3 Rd1 Qg7 Qe4 Qc1 Rd4 Rc7 Qg6 Rf5 Qg4 b3+ Ka3 Qf1 Be4 b1Q Bf3 Qd3 Kb2 Qg2 Ka1 Qd2 Qh4 Q2g6 Qh2 Qc2 Qg8 Rf6 h8B Q6h7 Na3 Qcg6 Nb5 Rb7 Nc7 b2+ Ka2 Rf5 Na8 b1Q+ Ka3 Qc1+ Ka2 Nb6 Bg2 Na4 Be4 Qd2+ Ka1 Nc3 Bg2 Nb5 Be4 Rb8 Bg2 Rd8 Bf3 Kc8 d7+ Kb7 Qe6 Rf6 Qg4 Bb8 Be4 Qc2 d6+ Qc6 Rd5 Qc5 Bf3 Kc6 Bg2 Qcc2 Rd4+ Kc5 Bc6 Qd2 Rd5+ Kc4 Rd4+ Kb3 Rd5 Rc8 d8B Qdc2 d7 Rc7 Rd4 Rf5 Bh4 Rf7 d8R Rcd7 Ne6 Rf2 Nf4 Rb7 Rd6 Rd7 Rd5 Qc1#
BKqnR3/P1N2Pqr/5q2/N1n1B1B1/4R3/bn3Q1Q/b1kq1RN1/3q1Br1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 a4 b5 g4 e5+ d6 h5 d4 c6 f4 h4 d5 h3 a5 b3 f6 b4 a6 h2 a7 b2 f5 b3 g6 Ne7 g7 Rg8 g5 Ng6 f7 Qe7 Kb6 c5 d7 c4 Kc7 c3 d6 c2 f6 Nf4 g6 Nc6 Na3 b1Q Nf3 b2 Nc4 Na5 Ra2 Nb3 Ne1 Nc5 Na5 Qa1 Qh5 b1N Ng2 Nd2 Bb2 c1Q Qh3 Ndb3 Bd4 Rh8 g8R Rh7 g7 Qc2 Rg1 h1Q Ra4 Qe6 d8B Qe7+ d7 Nfe6+ Kc6 Qab2 Rh8 Ba6 g8B Bc4 Ra2 Qd1 Kb6 Qbc1 Rf2 Qh6 Ba1 Qg7 Kc6 Qe8 Be7 Nd8+ Kc7 Rb8 Bb2 Rb4 Bc3 Ra4 Kb8 Ra1 Bb2 Qh2 Bd4 Qf4 Rh1 Ndb7+ d8N Qc6 Ne6 Nd8 Nc7 Qff3 Re2+ Kd3 Rh2 e4 Be5 e3 Rf2+ e2 Rh1 Rh4 Bh7+ Kd2 Be4 Rh7 Bd5 Qd7 Ba8 Kc2 Rh2 Qfc6 Rf4 e1Q Re4 Qed2 Rg8 Ndb7 Bd8 Be7 f8Q Qd7g4 f7 Qcf6 Qe8 Bd6 Qc6 Qgf5 Be7 Nd8 Re8 Qdh5 Bf4 Qfh6 Beg5 Nce6 Be5 Ba3 Qb6 Qhf6 Qbe3 Nc1 Nh4 Nc5 Be2 Ba2 Rf2 N1b3 Ng2 Rg1 Bf1 Qd1 Qef3 Qc8+
2Bq3b/3NBnqk/rN2b3/N4rn1/1bR2NQb/nB2Q3/3K1PRP/5Q1q w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 Kf7 b4 d5 b6 a5 c5 e5 f6 g5 b5 a4 h6 Kg6 c6 e4 f7 e3 c7 g4 h7 g3 b7 g2 b6 d3 Nh3 g1N Na3 e2 Rb1 d4 Bd2 Be7 f8Q Nh6 Rc1 Be6 c8B Bh4 Qb3 Nc6 b8N Ra6 b7 Nf7 Ba5 Nce5 Qfb4 Nc4 Nc6 Rf8 h8Q Qg5 Qf6+ Kh7 b8N Qg7 Nf4 Nh3 Nd7 Nhg5 Bg2 Ne3 Kd2 Nc2 Nc4 a3 Qfe7 a2 Qb1 a1B Rhg1 Na3 Ncb6 Bb2 Rc4 e1B+ Kd1 Bec3 Bd5 Bd2 Qa4 Bb4 Rg2 B2c3 Qc1 d2 Ke2 Ba1 Qf1 d3+ Ke3 d1Q Qc5 Be1 Bb4 d2 Na5 Qc1 Qd4 d1Q+ Qd2 Qb1 Be7 Bf6 Qde2 Bb4 Qb3 Bb2 Qg4 Qdd4+ Ke2 Qbe4+ Qe3 Ba1 Rg3 Qh1 Rg2 Bb2 Bc6 Qd6 Ba4 Qc7 Bb3 Qd8 Na4 Nd6 Kd3 Rf5 Nab6 Ndf7 Ke2 Qgg8 Kd3 Bh8 Ke2 Qg7 Kd3 Bd6 Kd2 Bb4+
3N2bB/QR1n4/1N3R1K/q1n3q1/1bRQ2r1/rP3PBk/7b/bBn2qBQ w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 h5 d4 a5 b3 c4 d6 h3 b6 h4 d7 h2 g5+ Kg7 f6+ Kg6 b7 e6 f7 a4 f3 Kh5 g6 h3 g7 Kh4 d5 a3 d6 c3 Be3 a2 Bd3 c2 Nd2 c1Q Nc4 Ra3 Nb6 Na6 b8B Nf6 g8Q Nc5 Qg7 Rg8 Ne2 e5+ Kf5 e4 Kg6 Qc7 d8Q Be6 d7 Bd6 Bg1 e3 Nd4 e2 f8R e1B Nc6 Bb4 Bb1 Qa7 Qc7 Qa5 d8B Kg3 Rf7 Nfd7 Qa7 Qg5+ Kh7 Bf4 Qgd4 Rg6 Rf6 Bg8+ Kh8 Kg2 Bdc7 Be5 Nd8 Bg3 Be5 Bf4 Be4 Kg3 Rc1 a1B Rc4 Kh4 Bf2+ Bg3 Re1 h1N Bg1 h2 Bb1+ Kh3 Bbc7 Nf2 Re3 Bf7 Kh7 h1Q Qc1 Bh2 Bg3 Qa6 Re7 Nfd3 Bce5 Qa5 Qe1 Nc1 Qed1 Nb8 Rb7 Nbd7 Qe1 Qf5 Qed1 Rg4+ Kh6 Be6 Rf8 Bd5 Bh8 Bg8 Rf6 Qd5 B1f2 Qg2 Qh1 Qf1 Bg1 Qg5#
2rQ4/BRb3Kq/q2b4/r2q1bN1/qnBn2RP/1RPN3r/k2N4/B1Q1B3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 g5 Ke4 d5+ Ke5 a5 h4 g4 b4 g3 f4 d3 b6 d4 f6 a4 b7 a3 f5 g2 b5 a2 c3 d2 b6 d3 h6 Na6 b8B Nb4 h7 Nh6 Ne2 g1B b7 Bh2+ Nf4 e6 Qc2 d1Q Nd2 Qh5 Rb1 a1Q Bb2 Qa6 Qc1 Qd7 Be2 Qda4 Ba7 Rg8 h8R Bd6+ Kd4 Bg3 b8B e5+ Ke4 Bd7 Ba1 Rc8 Rg8 Bc7 Rg4 Bh2 Nc4 d2 Nd3 d1Q Nd2 Qdb3 Bf2 Ra7 Be1 Qd5+ Ke3 e4 Rb3 Ra8 Ba7 Bhd6 Rh2 Qe6 Kd4 e3 Bf1 e2 Rf2 Rab8 Rf3 Rb5 Rfg3 Ra5 Re3 Kf8 f7 Ke7 f8N Kf7 f6 Qef5 Bg3 e1R Ne6 Re2 Re5 Re3 Be1 Rh3 Rb5 Qc5+ Ke4 Nf5 Rb7 Nd4 Be2 Ke8 f7+ Ke7 Ng5 Be6 Ne5 Bf5+ Kf4 Qd5 Bc4 Kf6 f8Q+ Qhf7 Nh7+ Ke6 Kg5 Qfe8 Kh6 Qh5+ Kg7 Q6c6 Nd3 Qa6 Nf4+ Ke5 Nf1 Ke4 Nd2+ Ke3 Nd3 Ke2 Qa3 Kd1 Qd8 Kc2 Ng5 Na2 R3b6 Nb4 Nb3 Kb1 Qc1+ Ka2 Rb5 Qf3 R5b6 Qd1 Nd2+ Qdb3 Bg8 Qd5 Rb5 Nbc6 Rb3 Nb4 Nf7 Qdc4 Ng5 Qc5 Bc4 Qcc6 Qd7 Qd5 Qd8 Qh7+
kBR1bQb1/1n4Qq/B4B2/nr6/QNb2P2/NR1rn2R/5PK1/bRq2q2 w - - 0 1 illegal: No possible last move
N1B1r2n/1r2r1N1/2n1Nq1B/1R1n4/1NbPBq1P/6k1/RbqQ1r2/1QR1K3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 h4 Kd6 e4 Ke5 h6 c5 h7 g5 d3 a5 b6 f5 b7 a4 d6 f3 b5 a3 d7 g4 b6 c4 Rh3 g3 Kd2 Kf4 e5 f2 d4 g2 e6 a2 e7 Ra7 e8B Ba3 Rc3 Nh6 Bg6 Re8 h8R Nf7 Nf3 g1N Ng5 Qf6 d8N Nc6 b8N Ne2 b7 Be6 Rh5 Nh8 Bh3 f1Q Na6 Bg8 Rc2 Kg3 b8Q+ f4 Nc7 f3 Na8+ Nf4 Nc3 f2 Nd5 Rae7 Be4 Qg2 Rb1 a1R Bc8 f1R+ Qe2 Qf3 Ra2 Rf2 Ke1 c3 Be3 c2 Qd2 Qg4 Rd1 c1Q Qbb4 Qc5 Rc1 Rb1 Qb5 Rh7 Qbd3 Rbb7 Nb4 Rhe7 Qb1 Qfe6 Nf3 Qc2 Rb5 Bb2 Ng5 Qf6 Ndf7 Qg7 Nd6 Bb3 Ne6 Nd5 Bh6 Qf4 Nf5+ Kg4 Ng3 Bc4 Nh5 Qgf6 Nhg7 Kg3
N1qk1rB1/q1b4Q/R1B1n2b/3b1N1b/Q1PQ2q1/1nN1B1n1/R4P1N/4Kr2 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1b2B1/N1RR1q2/1Knq3n/4Nk1B/1rP3N1/1b2B2R/2P1Rn1b/3qQr1n w - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 d3 f5 exf5 b5 axb5 c4 dxc4 Qb6 Ra5 Qc7 Ra1 Qd8 Kd2 Kf7 Ke3 Kf6 Kd4 d5 Kc5 h5 g4 a5 f4 d4 b4 d3 b6 d2 b7 h3 b5 h2 g5+ Kg7 g6 Kf6 b6 a4 g7 h4 Nh3 a3 Qe1 d1Q Nd2 a2 Nf2 h3 Be2 Ra4 Nf3 Bd7 Ne5 Nc6 b8N Nh6 g8B e6+ Kb5 Be7 b7 Rh7 Be3 Rf7 Rb1 a1Q Bh5 Qa3 Rc1 Qe8 Kb6 Qad6 Rb1 Rf8 Ra1 Qf7 Nfg4+ Kg7 Ra3 Bf6 Rf1 h1N Rf2 h2 Re2 Nf2 Rd3 h1N Rd4 Nb4+ Nbc6 Be7 b8R Bg5 Rb7 Bd8+ Rc7 Be8 Nd7 e5 Rd5 e4 Nde5 Qe6 Rd7 Qed6 Bd2 e3 Bc1 Qde7 Na7 Nc6 Bd2 Qa3 Bc1 Qad6 f6+ Kh8 Rd2 e2 f5 Qh7 f7 Kg7 Rd3 Qhg6 Rh3 Qh7 Qg1 e1B Be3 Bd2 Qe1 Bc1 Bd4 Bf4 Be3 Qhg6 Nh2 Kf6 Nhg4+ Kg5 f6 Kf5 Bh7 Rh8 f8Q Bh2 Bg8 Qg7 f7 Qh7 Qg7 Qhg6 f8R+ Qf7 Re7 Bd7 Rfe8 Rh7 Qh8 Rg7 Nf6 Rg1 Nfg4 Rf1 Ng6 Bc8 Rd7 Ba6 Re6 Bb5 Qb2 Ra1 N6e5 Ba4 Ka6 Ra2 Qb8 Bb3+ Kb7 Ra4 Kb6 Qdf8 Red6 Q8e7 Rd2 Qd6 Re2 Rb4+
RnnRq3/r3nk2/QBQ2Nq1/3qQBQ1/rP6/5PKr/1RnN2b1/B1b5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 e5 b4 a5 d4 h5 f3 c5 Kf2 e4 g5 c4 f6 h3 d6 a4 d5 c3 g6 h2 b6 c2 b7 a3 g7 h4 d7+ Kf7 d6 h3 Kg3 e3 Bd3 a2 Bb2 c1R Nd2 e2 Bf5 Ne7 Qc2 Ra7 Qc6 e1N g8R Qe8 d8B Nc2 d7 Bh6 Ne2 Na3 Bb6 Nb5 d8Q Nd6 Rd1 h1Q Nf4 h2 Rb1 a1N Nd5 Nc2 Ba1 Qf1 Rb3 h1Q Rb2 Be6 Qdc8 Qh5 Qd8 Qd3 Qdc8 Nd7 b8Q Qa6 Qd8 Ndc8 Qe5 Nb8 Qdd6 Rb1 Qdc5 Qa5 Qce3 Qg6+ Qg5 Qd7 Rd8 Qe8 Re1 Qa2 Re3 Re1 Ra3 Re3 Ra6 Ra3 Ra5 Ra4 Ra6 Kf8 f7 Qb3 Nf6 Qd5 Be4 Bh3 Bf5 Rd7 Ra8 Bg2 Qe2 Rb7 Qa6 Kg7 Nfe4 Ra7 f8Q+ Kh7 Qff6 Kg8 Qe5 Kf7 Nf6 Rh7 Qg4 Be3 Qg5 Rh6 Nc4 Bc1 Nd2 Rh3+
k2q3r/1r4Br/3Q2QR/1q3NK1/BP3BRn/rN1n1P2/3b1qQn/B2b1N2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 a5 Kf4 h5 b4 c5 d4 Kc7 g4 Kb7 g5 h3 b6 a4 f6 c4 d6 h4 d5 a3 g6 e5+ Kg5 h2 g7 c3 d7 h3 d6 c2 Qd3 a2 Bf4 c1N Nf3 e4 Nbd2 e3 Qg6 e2 Nb3 e1Q Nfd2 Nc6 Bb5 Ra7 Nf1 Nce7 f7 Nf6 g8N Nf5 Ba4 Ka8 Ne7 Nh4 Nf5 Rb7 f3 Nd3 Rg1 h1Q Rg4 h2 Rb1 Bg7 f8B a1R Rc1 Qee8 Rc6 Qg2 Be5 Ra3 Ba1 Qc7 d8Q h1R d7 Qf2 Qe7 Qcd8 Qd6 Qee2 Qh2 Qe5 Rd6 Qb5 Qg2 Rh7 Rc6 Bh8 Bg7 Rh2 Re4 Ng4+ Rf6 Rh1 Rc4 Nh2 Rg4 Qg8 d8B Be6 Bc7 Qb8 Bf4 Bg8 Nbd2 Bb3 Re6 Bd1 Nb3 Re7 Rd6 Qd8 b7+ Ka7 Bf8 Bc3 Bh6 Bd2 Rf6 Re6 Bg7 Rb6 b8Q+ Ka6 Qc8+ Ka7 Qc7+ Ka8 Qd6 Rb7 Qh6 Rh8 Qh7 Ng6 Ne3 Nf1 Qh6 Rh3 Qh7 Nh2 Nf1 Rh4 Qh5 Nge5 Qf7 R4h7 Qfe6 Ng6 Qf7 Ne7 Rh6 Ng6+ Qff6 Qdd7 Qf7 Nh4 Qfg6 Qd8+
1q4B1/nN3R1q/3q1Q1r/rBK1NbP1/2R2rQn/r1B5/PR2Nk2/N5bn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 f4 h5 d4 c5 f6 b5+ Kb3 e5 d6 h4 f7 h3 d5 c4+ Kb2 c3+ Kb3 c2 f5 h2 d7 Ra5 f6 Nh6 d6 Nc6 g6 Nf5 g7 Nh4 g8B Rh6 g5 Na7 Bb2 Ke3 Qg4 c1R Na3 e4 Bc3 Kf2 Ne2 e3 Nc2 Qb6 d8Q Bf5 d7 Bc5 f8R Qd6 Rg1 h1N f7 Rd1 Qe7 Rd4 d8N Rf4 Rc1 Bb6 Na1 Ra3+ Kb2 b3 Nb7 b4 Qf6 Ra5 Rb8 Bd4 f8N Bb6 Nd4 e2 Ng6 e1R Ne5 Re3 Bb5 Rd3 Ne2 Be3 Kb1 b2 Kc2 Bd4 Kb3 b1Q+ Kc4 b3 Rf8 b2 Rf7 Qc2 Rgd1 b1Q Rd2 Qbb2 Bc6 Qb6 Bb5 Qb1 Rb2 Rdf3 Bb4 Rfa3 Bc3 Qb8 Rd1 Be3+ Rd4 Q6d6 Re4 Kf1 Rd4 Bg1 Re4 Kf2 Rd4 Qd7 Kc5 Qd3 Rc4 Qg3 Rf8 Qh7 Rf7 Qd3 Nd7 Qd1 Ne5 Qdd6+
Q3bN2/r3nR1B/1Q6/Rq1qP2q/rB3Q2/2B2rK1/PN1N4/qbbnk2B w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 d4 b5 h4 g5 e4 f5 h6 c5 h5 c4 d6 Kc6 h7 b3 h6 f4 d7 b2 e6 f3 d5+ Kc5 e7 Kb4 e8B g4 d6 c3 e5 c2 Bg2 g3+ Ke1 Ra7 Ne2 Nf6 Rh4+ Ng4 Nec3 Nc6 Qd2 Ne7 Bh1 g2 Bg6 f2+ Ke2 g1R Kf3 Rf1 Na4+ Kc4 Kg3 b4 Qe3 b3 Bd2 c1Q Bb4 Qd1 Rh3 Qe8 d8B Bd7 Bda5 Qd5 Qg5 Kd4 Nd2 b1Q Nb2 Ne3 Bc2 Ba4 d7 Nd1 d8Q Qh5 Qf5 Ke3 Qb6+ Ke2 Qf4 Be8 Bc3 Qd8 Bab4 Qd5 Bg6 Rg8 h8Q Ke1 h7 Bh6 Rh4 Rf8 Qg8 Ra4 h8N Rf7 Bh7 Bg5 Ng6 Qbd3+ Kh2 Q3b5 Nf8 Bh6 Kg3 Bg5 Nbc4 b2 Rg4 b1B Nb2 Nc8 Qh8 Rfa7 Qg8 Bh6 Rg7 Ne7 Rf7 Be4 Rc1 Bb1 Bg2 Rg1 Qh8 f1Q Qg8 Rh1 Bf3 Rh2 Bh1 Rf2 Qc6 Bc2 Qgg6 Qbc4 Qa8 Bd3 Qff5 Ke2 Ne4 Ne3 Bd2 Qcc5 Rc4 Qa1 Bdc3 Nd1 Qb6 Bc1 Nd2 Ke1 Qf4 Qa5 Rc7 Bb1 Rc5 Qa6 Ra5 Qab5 Qg6 Rf1 Qb6 Rf3+
5Rn1/1bnk2K1/3Nr3/2qBPn1r/2b2b1B/1Pq1QQ2/1qN1q2R/R3RBQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 f5 d4 c5 e4 a5 g4 h4 d6 c4 d7+ Ke7 d5 c3 g6 c2 g5 a4 e5 h3 b3 a3 b6 a2 b7 h2 d6+ Ke6 g7 Nf6 g6 Ra4 Nd2 Ra6 Ne4 Ng8 Ne2 Qe7 d8Q Rh5 d7 Qc5 Nd6 Be7 Qe1 Bg5 Qf8 Bh6 Be3 c1Q d8R Qb2 Bf2 Bg5 Rg1 h1N Bh4 Ng3 Rg2 Rc6 Rh2 Na6 b8R Nc7 Ra8 Bb7 Nd4+ Kd5 Nc2 Ke6 Rb1 a1Q Qe3 Qaa5 Re1 Qac3 Re8+ Kd7 Raa1 Bh6 Qf6 Bg5 Rf8 Bh6 Kg2 f3+ Kh3 f4 Kg4 f2 Qf5+ Ne6 Qfe4 Nf5 Qg2 Nc7 Qgf3 Nge7 g8Q Rb6 Qgd5 Ng8 g7 Ra6 Qg3 f3 Qg1 Bf4 Qde4 Nge7 g8B Rb6 Bd5 Ng8 Ba6 f1B Bd3 f2 Q4f3 Be2 B3c4 f1Q Ba6 Rh6 Bd3 Re6 Kh5 Rc6 Bb5 Bc4 Ba6 Qe2 Bb5 Re7 Kg6 Rh7 Ba6 Rh5 Kf7 Nd4 Kg6 Rb6 Kg7 Nf5+ Kf7 Qf1 Ne4 Re6 Nd6 Be2 Bd3 Ng3 Kg7 Qf2 Bg6 Bc4 Bd3 Qfd2 Bf1 Qdd3 Na3 Qde2 Nc2 Nf5+
1bb2N2/2K2Rr1/1RBQ1Q1B/1q1Pn2Q/k4N1r/5rn1/n3P1qq/BNr3B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 a5 Ke5 g5 b4 f5 d4 a4 h4 a3 b6 a2 h6 f3 h7 f2 b7 c4 h5 f4 d6 Kc6 h6 Kb5 d7 f3 Rh5 c3 Bg2 f1Q Nh3 f2 Nf4 g4 Rf5 c2 Rf7 Qb6 d8Q g3 Qf6 Ka4 b5 Ra7 Bc6 Ne7 Kd6 Nd7 b8N Ne5 Nd7 g2 d5 Qa5 b6+ Qb5 b7 g1Q b8Q Qfg2 Qf1 Bg7 Nf8 Q1h2 Qh1 f1R Be3 c1N Bg1 Rf3 Qc7 Rg8 h8B Ra8 Qb8 Nf5+ Kc7 Ng3 h7 Bh6 Qb6 Rg7 Qc5 Ra6 Qcd6 Ra5 Na3 Ra6 Rb1 a1R Rb2 Na2 Nb1 Rg4 Bg7 Rh4 h8B Ra7+ Kd8 Bg5 Bh6 Rb7 Nd3 Be3 Nf4 Rb8 Kc7 Ba7 Nd2 Rc1 Nb1 Qf2 Rb3 Qhg2 Qh3 Qh2 Qg4 Qfg2 Qh5 Rb7+ Kd8 Bc5 Qfe7 Nd7 Rh7 Ba7 Ba1 Ne5 Qef6 Rc7 Bb7 Qc4 Rb6 Re7 Bc6+ Qb5 Rg7 Re8+ Kc7 Rd8 N8g6 Rg8 Rf7 Rg7 Nf8 Bb8+
1kr2q2/2NqnbBb/3b1q1n/2P1r1rK/6N1/R2PR2B/2Nb2NR/4BQ1Q w - - 0 1 illegal: No possible last move, all moves rejected
B1bb4/nR4rB/Q3R3/P2k2nn/2r3r1/1Q3q1b/N2bqPQ1/B1RK1R1N w - - 0 1 illegal: No possible last move, all moves rejected
k1n2bR1/1N1b2q1/3NQrn1/PqrB1N2/1b1R4/1r2B1Pq/Q6B/K2N2Qr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 Kd2 e5 Kc2 c5 Kb2 Kc7 f4 b5 a4 Kb7 g6 h5 a5 e4 d6 h4 d5 b3 f6 e3 d7 c4 g7 e2 f5 e1Q d6 h3 f7 h2 f6 b4 Ne2 Rh5 Rg1 h1R Nd4 Rd5 Nc3 Qde7 d8N+ Ka7 d7 Q1e6 Nb7 Nc6 d8N Ne5 Nf5 Rc5 Nbd6 Ng6 N8b7 Bd7 Be3 Rd8 Qe2 Ka8 Nd1 c3+ Kb1 b2 Ra4 Rb8 Qg4 Re8 Bc4 c2+ Ka2 b1R Bd5 Rb3 Ka1 c1B Qg5 Nh6 g8Q Ba3 Qg3 Rec8 Qf2 R8c6 Qa2 Ra6 Qg7 Ng8 Qh6 Bg7 f8B Q7f7 Be7 Bf8 Qh3 Qh7 f7 Qg7+ Bf6 Rac6 Be5 N8e7 Qg4 Nc8 Qge2 Rb2 Bh2 b3 Rd4 Bb4 Qg4 Qee5 Qe4 Qg3 Qe5 Qh3 Qe6 Be7 f8Q Ra6 Qd8 Bf8 Qh4 Rb6 Qe1 Rf2 Nh4 Rf7 Nhf5 Rf6 g3 Rbb5 Rf1 Rb6 Rff4 Rbb5 Qg1 b2+ Kb1 Bc3 Rh4 Rb3 Rh8 Bb4 Rg8 Ra3 Qf1 Be1 Qac4 Rd3 Ka2 Bc3 Qg1 b1Q+ Ka3 Qb6 Ka2 Bb4 Ka1 Qb5 Qa2 Rb3
2b1NN2/2nqr3/kB1Q1P2/1n5P/1RbB1KQ1/b2qQ1qR/bQ3n2/1r2RB2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 a5 Kf3 e5 c4 d5 b4 Kd7 h4 Kc7 f6 Kb7 h6 g5 b6 a4 c5 a3 h7 a2 h5 g4+ Kg3 d3 f4 d4 c6+ Ka6 f5 e4 f7 e3 c7 e2 f6 e1N b7 Ra7 Nf3 Qd7 Nbd2 Nc6 b8R Nge7 Nh4 Nd5 Nc4 d2 Ng6 d3 Nd6 Nd4 Bb2 Nb5 Ne8 Rb7 Qc2 d1B Rh3 d2 Bd4 Be2 Qb2 Nd3 Re1 d1B Bb6 Bc5 f8Q a1Q Qd6 Qa3 Nf8 Rg8 h8Q Rg7 Qh7 Bb3 Qe4 Nf2 Qd3 Re7 Qe3 Ra7 Rb7 Ba2 Rb8 Qd3 Rb7 Ndc3 Kf4 g3 Rb8 g2 Rb7 g1Q Rb8 Bb7 c8Q Qc7 Qg4 Bc8 Rb7 Qd7 Rb8 Nc7 Rb7 Kb5 Rb8 Ra3 Rb7 Rb3 Rb8 Ka4 b5 Ba3 Bd4 Ka5 b6 Kb5 b7 Rb4 Ra8 Rb3 b8B Qg2 Bba7 Qg3+ Kg5 Ka5 Rb8 N3b5 Bab6+ Ka6 Qc2 Rb1 Qb2 Qc2 Rb7 Bec4 Rb8 Qg2 Kf4 Qd3 Ra8+ Kb7 Ra4 Qg1 Rb4 Ka6 Rb3 Qg2 Rb4 Qg3+
1q5k/2B1r2n/4PR1n/rn1bbN2/2R2bB1/1B1bNR2/Rq1P2q1/2QN1Q1K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 a5 e4 c5 b4 f5 g4 Kf7 Kg2 Kg7 g6 h5 g5 a4 d6 c4 b6 c3 e5 c2 b5 a3 b7 h4 b6 a2 d7 Na6 b8R Be7 b7 Qa5 d8Q Nf6 Qc7 Qb5 Nh3 Nh7 Be2 Be6 Rf1 f3+ Kh1 f2 Nc3 f4 Bb2 c1Q Rf8 f3 b8R Bd5 Rf6 Re8 Rc8 Kh8 Nf4 h3 Ng2 h2 Ne3 Bd6 Qc4 Qc2 Qc1 Nc7 Ncd1 Qb8 Ba3 Nb5 g7+ Kg8 Qf4 Qb2 Rc4 Re7 Bb4 Raa7 Ba5 Ra6 Bc7 Ra5 Rg1 f1N Rg3 f2+ Bf3 Bf7 Bg4 Bd5+ Rf3 Ng3+ Kg2 Nf5 Kh1 Nh6 Qf5 Nf8 Qf4 Kh7 g8B+ Kh8 g6 f1B Bf7 Bd3 g7+ Kh7 g8N Kh8 Bfe6 Nh7 Qf5 Rg7 Ne7 Rf7 Qf4 Rg7 N7f5 Re7 Rb1 a1B Bg8 Qc2 Rb2 Qb3 Ra2 Qb1 e6 Bae5 Bf7 Qb2 Be8 Nc3 Ba4 Nb5 Qg3 Bf4 Qe1 Bde5 Bb3 Bc6 Qf1 Bd5 Kg2 h1Q+ Kf2 Qh5 Kg2 Qh3+ Kg1 Qg3+ Kh1 Qg2+
2b1b1N1/n1Br2q1/R3P2q/3rNn2/n2NbP1k/2Bq4/Q3QbK1/BB1R2Q1 w - - 0 1 illegal: No possible last move
3NB2N/2B3bq/r2P2qb/q2knQ1b/R7/Kr1n1P2/BQ2NR2/1qRr3R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 h5 Kd2 a5 Kc3 e5 Kb2 c5 f6 h3 f7 h2 b6 c4 b7 h4 b5 h3 g5 a4 g6 e4 b6 e3 g7 e2 Nf3 e1Q Ka3 c3 Bb5 c2 Nh4 Ne7 g8B Ng6 Qf3 Nf4 Ng6 Nc6 b8R Bh6 f8R Qe6 b7 Qa5 Nc3 Nd3 Bf4+ Nce5 Rac1 Ra6 Be8 Rh7 Nh8 Qg6 Ra8 Bg4 Bg3 Bh5 b8Q+ Rc7 Qb1 Rb7 Qf5 Rb2 Ne2 Rb3+ Ka2 a3 Qb2 Kc7 d6+ Kb6 d7 Kc6 Rhg1 h1R d8N+ Kd6 d5 h2 Rgf1 Rg1 f3 h1Q Rf2 Rd1 Rf7 Kc5 Rh7 Qh4 d6 Qe7 Bh4 Qef7 Bg5 Kd5 Be3 Bg7 Bb6 Bh6 Bc7 Bg7 Rb1 c1B Ra1 Bch6 Rc1 Qg2 Rb8 Qg3 Rb4 Qg6 Ra4 Rb4 Kb1 a2+ Kc2 a1Q Kc3 Rc4+ Kb3 Qb1 Ka3 Rb4 Ng3 Rb8 Ne2 Bf6 Rg7 Qh7 Rg1 Bfg7 Rh1 Rb7 Nc3+ Kc5 Ng6 Rb4 Nh8 Qfg6 Ba2 Rc4 Ne2 Kd5 Kb3 Rb4+ Ka3+ Rb3+
1Q3N1K/Rq1QNQr1/1n1P1R1B/7P/4b1r1/R1Q1b3/Bn3rr1/1qNq2bk w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 c5+ Ke4 a5 d4 e5 h4 c4 b4 g3 f6 g4 f5 a4 f7 c3 f6 g2 h5 g3 b6 c2 b7 a3 b5 a2 b6 Ra4 Qf3 Nh6 Bg5 c1R Qe3 Nd7 b8R Ng4 Kf5 e4 Kg6 Bh6 f8N Rc7 f7 Bb7 Be2 Qc8 Bc4 Nf2 Ne2 g1R Qc3 e3 Nc1 e2 Ra8 e1Q Ra7 Rg2 Rf1 Nd1 Be3 Bf4 Kg7 Nb2 Bd2 Ba8 b7 Nb6 b8Q Be3 Rf2 Qd1 Rf6+ Ke7 Bb3 Qb7 Bc4 Rh7+ Kg8 Rg7+ Kh8 Rf2 Bb3 g2 Bc4 Rc8 d6+ Kd8 d7 Ke7 d5 g1B Bb3 Rag4 Ra3 Bc5 Bh6 Be3 Nd2 Rgg2 Ne4 Rc4 Nd6 Rcg4 Nc8+ Kd8 Rb1 a1Q Bc4 Qa2 Ra1 Qb1 Ba2 Bc5 Qa7 Kc7 d6+ Kc6 d8Q Rf5 Qb3 Rff2 Qb8 Be3 Ne7+ Kc5 Qc2+ Kd4 Qd7 Ke5 Qc3+ Ke4 Nf5 Kf3 Ne7+ Kg3 Ra7 Kh2 Bd5 Rd4 Ne6 Kh1 f8Q Rc4 Qf7 Qc6 Nf8 Rcg4 R1a3 Qc7 Be6 Be4 Ba2 Qb7
QqKN2Q1/b2B3n/1Pb2B1N/3QNR2/BPr1Br1n/1n1rR3/3r4/q4kq1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 a5 b4 c5 g4 h5 g6 f5 g5 a4 d6 f3 d7 f2 Ke6 f4 d5 a3 d6 a2 g7 f3 g6 h4 Nc3 h3 Qd2 h2 Bg2 f1N e4 f2 e5 Ra3 Nf3 Nc6 Nd5 Nf6 g8Q Rd3 g7 Ne3 Bb2 f1R Ne7 Na5 Nf5 Nb3 Nh6 Bb7 Re1 Nf5 Re3 a1Q b6 Bc6 Rg1 h1Q Bd4 Qb8 d8N Nh4 d7 Bd6 Qd1 Rf2 Rf1 Nh7 Qd2 Qc7 Qa2 Qb8 Qa8 Qg1 Bh3 Rg2 Bf5 Rgd2 Be4 Qb7 Bc3 Bb8 Rf2 Ba7 Ke7+ Rd5 e6 Qb8 Bf6 R5d3 Ne5+ Kd4 Rf5 c4 Ke8 c3 e7 c2 Bh1 c1R Be4 Nf8 Qd5+ Kc3 g8B Qd6 Bf7 Rcc2 Bh5 Rh7 Bg4 Rf7 Bh3 Nh7 Bg4 Na5 Bd1 Rc1 Ba4 Nb3 Rh5 Rg7 Ndf7 Rg4 Kd8 Rdg2 e8B Kd2 Kc8 Rc4 d8Q Rf4 Bd7 Kd1 Qg8 Rgd2 Rh3 Ke2 Rf5 Ke1 Re3+ Kf1 Nd8 Qb8+
2B3q1/4qQ2/NP1PNqn1/B2RR1N1/KQ1Qr3/br1b1Qr1/8/Bk2nb1r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 Kd2 a5 Kc2 c5 Kb3 c4+ Ka3 a4 f6 h3 g5 h4 f5 h2 f7 h3 b6 c3 b5 c2 f6 e4 g6 e3 g7 e2 b7 e1R Nc3 Re4 Nge2 Na6 b8N Nc5 Na6 Nd3 Bb2 c1Q Nf4 Ne7 g8Q Ne1 Ne6 Ng6 b6 Rhh4 Qf3 Qe3 Rd1 Rhg4 Ba1 Rg3 Rg1 Be7 f8Q h1B f7 h2 Bh3 Bg2 Kb4 a3 Ka4 h1R Rd2 Nc2 Re1 a2 Qgg7 Bf1 Bf5 Kd7 d6 Kc6 d7 Ba3 Qb4 Qg8 f8B Ra7 Ree2 Ne1 d8Q Qg5 Rd3 Qe7 Qf7 Rd7 Bh3 Rd5 Bh6 Rb5 Bd2 Bb7 Nf4 Ba8 Bc8 Bb7 Ne6 Ba8 Qa5 Rb3 Qb4 Bb7 Nd5 Ba8 Ndf4 Bb7 Ng5 Ba8 Bac3 a1Q Nfe6 Qb2 Qc7+ Kd5 Qcf4 Qa2 Ba1 Qb2 Qbd6+ Kc4 d5 Bb7 Ba5 Qbf6 Qde5 Ba8 d6 Bd5 Ng7 Be6 Rd5 Beh3 Re3 Bd3 N7e6 Bhf1 Qb2 Rd4 Ree5 Re4 Qb1 Rb2 Q4e3 Rb5 Qef2 Rb2 Nb4 Kc3 Qd4+ Kd2 Qa2 Kc1 Qac4+ Kb1 Na6 Rb5 Qcc3 Rb2 Qcb4 Rb3
n1KQ1N2/4q1Pr/k5r1/B1n2nq1/rQRQ1R2/n6N/P1N3b1/N2qB1bB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 b5 Kd4 h5 Kc5 e5+ d6 b3 f4 c6 d4 e4 g4 h4 f6 e3 g6 h3 f7 h2 d5 b4 g7 e2 g5 e1Q f5 b2 g6 b3 f6 Ra7 Na3 b1R Nc2 b2 Bg2 Rh3 Qd4 Nh6 g8Q Qee7 g7 Ra4 Bd2 Bb7 Be1 Kc8 Qb4 Rd1 Rc1 b1N Na1 Nf5 Rc4 Rh7 Nh3 Na3 Rf1 h1Q Rff4 Rd3 Be4 Rg3 Bf3 Qf1 Bh1 Rg6 Qh8 Qg2 Qg8 Qdd7 Kb6 Na6 Ka7 Qdd8 d7+ Kc7 Qh8 c5 d6+ Kc6 Qg8 Qd5 Qh8 Qa5 d8Q Nc7+ Kb8 Na8 d7 Qb5 Qc8+ Kb6 d8B+ Ka6 Ba5 Qd1 Qd8 Be4+ Kc8 Bg2 Rc2 c4 Qd4 c3 Qg8 Qe3 Qh8 Bd6 f8N Qe7 f7 Bc5 Ne6 Ba7 Rc1 c2 Qhd8 Qe5 f8N Q5f6 Rb1 c1N Rb3 Nd3 Rc3 Bc5 Rc4 Ba7 Qd4d6+ Bb6 Nd4 Qg5 Ndc2 Nc5 Qd3 Ne6 Qdd2 Bg1 Q2d4 Nc5
B1bN2Q1/3K2PQ/r5q1/Pkr2r1B/NBn2qRQ/1QR4b/N5bn/b5n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 b5 Ke4 h5 Ke5 c5 a4 c4 d4 h4 f4 e6 g4 h3 f6 c3 f5 b3 d6 Kc6 a5 b2 d5+ Kc5 d7 h2 d6 c2 f7 b4 g6 b3 f6 Rh6 g7 Qc7 d8N Ra6 g5 Bb7 Ra4 Rh5 Be2 Nh6 g8B Bg7 Nc3 b1B f8Q b2 Bd2 c1R Rg4 Bf5 g6 b1Q Qe7 Bh8 Na2 Nd7+ Kf4 Qc2 f7 Nb6 f8Q Nc4 Qh7 Kb5 Bb4 Ba1 g7 Qf7 d7 e5+ Kg3 e4 Kf4 Qf6 Bd5 e3 Qfg8 Qd2 Be4 Qg6 Qb3 Be6 Bd5 Rf5+ Ke4 Rc3 Bd1 Rc2 Ne2 Rc1 Rf1 h1B+ Rf3 Bg2 Ng1 Bc8 Ba8 Rc2 Ne2 Bb7+ Nc6 Qd6 d8Q Qc7 Qh4 Qf4+ Kd3 Bd7 Nd8 Bdc8 Ng3 e2 Ne4 Rc3+ Kd4 e1N Re3 Rc2+ Rc3 Bd7 Rg3 Bdc8 Bh5 Rc1 Rg4 Nf3+ Kd3 Ng1 Nc5 Nf7 Na4 Ng5 Qg3 N5f3 Qf2 Qfh6 Qh4 Nh2 Kd4 Rf8 Rg3 Bch3 Rg4 Rf3 Nc6 Qf4+ Kd5 Qb1 Ke6 Qg6+ Kd7 Qg3 Qgd8 Nb2 Qe8 Rf5 Re3 Rcc5 Qeg8 Qf4 Rc3 Nc4 Nd8 Bc8+
Bq3qq1/n3NP2/r2QRK2/1r1b4/Rr1bQ3/bR2B3/krPnQ3/3N1NR1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 Kd3 Kd7 h4 Kd6 b4 a5 f4 g5 f6 e5 b6 g4 f7 e4+ Ke2 d3+ Ke3 d2 Kd4 a4 b5 e3 h6 a3 b7 g3 f5 a2 f6 g2 b6 e2 h7 e1R h5 Re5 h6 Be6 Qe2 d1Q+ Nd2 Ra6 Nh3 g1Q+ Nf2 Rg5 Bh3 Qdf1 Bg2 Kc6 Bf3 Ba3 f8N Qgg2 Qe4 Kb5 Rg1 Kb4 Ng6 Qf8 f7 Nf6 Ne7 Qb5 Qe2 Ne4 Nf1 Nd2 Nd1 Rg4+ Ke5 d4+ Bd5 d3 Kf6 Nc6 b8R Na7 Ba8 Bd5 Re8 Rhg8 h8R R8g5 h7 Ka4 Rg8 Rb4 h8Q Rb2 Rb1 a1B Qh4+ Rg4 Qh7 Rgb4 Qhe4 Qg3 Rg6 Qg2 Rh6 Qgg8 Rc8 Qbe8 Rc4 Qb8 Rd4 Nb3 Be3 d2 Nf2 d1R Rc4 Ra5 b7 Rb5 Rhg6 Rd4 Nd1 Nd2 Rh6 Ra2 Rb3 Rb2 Rh4 Rd3 Rc6 Rc3 Rd6 Rc6 Re6 Ra6 Rhg4 Qc7 b8Q Qcc8 Qbh2 Qb8 Qhe5 Rb1 Q4f3 Re4 Rh4 Bc5 Rb4+ Ka3 Qg3 Ka2 Rb3 Ba3 Qd4 Bc3 Qd6 Rb2 Q4e5 Rea4 Rhb4 Bd4 Rc4 Bdc5 Qe4 Bb6 Rc5 Rd4 Rc4 Bbc5 Ra4 Rdb4 Qde5 Bb6 Qd6 Bd4+
1R2Q1BB/1B2Prb1/3qnn2/1K1R4/N2P2Q1/qb3RQ1/k1bN3r/4nRrb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 Ke2 Kd6 Kd3 Kc5 g4 Kb4 d6 a5 b6 h5 g6 c5 b3 f5 b7 f3 e5 f4 e6 h4 g7 h3 e7 a4 d7 f2 g5 h2 g6 c4+ Kd4 a3 d3 a2 Nd2 c3 Bg2 f1B Ne2 f3 Bb2 c2 Nc3 c1N Na4 f2 Qg4 Nf6 g8Q Na6 g7 Nc5 b8R+ Qb6 d8Q Bf5 Qe8 Ra5 Bc3+ Ka3 Kc4 Qd6 b4 Ne6 b5 Rh7 Rg1 h1B b6 Rh2 b7 Ra6 Rb1 a1Q Rd8 Ka2 b8R Be2 Bf3 f1R Rg3 Bd1 Bb7 Rg1 Kb5 Bb3 Rf3 Qb2 Be5 Qba3 d4 Nd3 Rbf1 Ne1 Rd7 Bfc2 Rdd8 Qc7 Rd5 Qcd6 Qg3 Nd8 Qe6 Rc6 g8B Bg7 Qeh3 Ne6 Qhg4 Rc8 Qeg6 Rf8 Qe8 Nh7 Bf6 Rf7 Be5 Bf8 Bg7 Nf6 Bh8 Bg7
2r2n1R/Nn1P3Q/4n2r/2QP1BNk/QrN3n1/1qb2K1N/RBq5/1b3Rb1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 f4 c5 b4 a5 g4 e5 d4 h5 d6 h3 f6 Kg6 b6 h4 b5 c4 d5 e4 f7 h2 g5 h3 b7 e3 b6 c3 f5+ Kh5 g6 c2 g7 a4 f6 a3 Bg2 a2 Nf3 Nc6 b8Q Rh6 b7 Bf5 d7 Nge7 g8R Na5 Rg6 Qb6 Ng5 Qb3 Rf1 h1N Bb2 c1Q Kf3 h2 Bh3 Nf2 Na3 h1R Rg8 Ng6 Qh2 Rc8 b8N Ng4 Nc4 Nb7 Rh8 Qcc2 Nc6 Bc5 Na7 Nf8 Qd4 Bd3 Qe4 e2 Qh7 e1B Qf4 Nf2 Bf5 Bc3 Nh3 Ng4 Qe4 Bg1 Qf4 Ng6 f8Q Rh2 Qfe7 Nf8 f7 Re2 Qb4 Re4 Qc7 Rd4 Qcc5 Re4 Qa4 Rd4 Rae1 a1N Re2 Re4 Ne3 Rb4 Nc4 Qd2 Rh2 Bb1 Rhf2 Nc2 Rg2 Ng6 f8N Qc1 Ne6 Nf8 Neg5 Nd4+ Kg3 Nde6 Kf3 Qa2 Ba3 Qb3 Ra2 Qd2 Bb2 Qdc2
R1QBqQ2/r1P3Q1/1r1R1NrN/8/B3r3/Kb1P1n2/b2Nkbq1/BN3nn1 w - - 0 1 illegal: No proof kernel
4N3/n2bKR2/1k2BRr1/n1n5/n3BQNP/2B1qn2/rbBN1P2/b3nQR1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 g5 Ke3 d5 Kd4 Kd7 Ke5 Kc7 b4 a5 c4 g3 h4 d4 f6 a4 f7 d3 c6 g4 c5 d2 Bb2 g2 Nf3 g1N Bd3 g3 Nh2 a3 Ng4 a2 Qf1 d1N Be4 g2 Bc3 Ne2 Nd2 Ng3 Rg1 Nb2 Rb1 Bh6 f8R a1B Rf7 Qe8 Re1 Bd7 b6+ Kd8 b7 Kc7 b5 Ra2 Re3 Na4 Ref3 Bg7+ R3f6 Rh6 Bc2 Rg6 b6+ Kd8 Kd5 e5 Kd6 Ne7 Be4 Na6 b8N Nb4 Bc2 e4 b7 e3 Na6 e2 Nc7 e1N b8Q+ Bc8 Qbb5 Bd7 Qbc4 Kc8 Qe4 Kb8 Qf4 Ka7 Na6 Bh8 c7 Nec6 c8B Qe3 Nc7 Na5 c6 Kb6 Bb7 Ne4+ Ke7 Bg7 Ne8 Nec5+ Kd6 Bb2 c7 Nbc6 c8B Na7 Bd5 Bh8 Bcb7 Ba1 Be6 Bb2 Bbe4 Bg7 Rh1 g1N Ke7 Ngf3 Rg1 Bh8 Rf5 Bd4 R5f6 Ba1 Bb4 Bdb2 Bc3 Qe2 Kd6 Qd3+ Ke7 Qe3
5K1R/3rN2B/bb3b1B/1N1QQn2/2P1Pr1q/1b1Rb2k/B1r1RBb1/1n5N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 a5 b4 f5 h4 d5 h6 d3 h5 d4 b6 a4 b7 d2 b5 d3 b6 a3 h7 a2 h6 Nc6 b8Q Nd4 b7 Nb5 Rh2 Na3 Nh3 Ne7 Kg5 f4 Nf2 f3 Nc3 Nf5+ Kg6 Qh4 Nh1 f2 Nb5 Bc5 e4 Rf8 h8N Be3 c4 Nb1 h7 Ra3 Qc7 Rc3 b8B Rc2 Ba7 Ba6 Bh3 f1B Re2 Bg2 Qc5 Kd7 e6+ Kd8 Qd5+ Ke7 Qe1 d1R Qg3 Bb6 Bh6 d2 Qge5 Rf7 Bg4 Rf1 Bf3 d1B Bh5 Rf4 Bf3 Bc7 Bf2 Bb6 Bh5 Na3 Rb1 a1B Rb3 Nb1 Rd3 Bc3 Qb8 Bf6 Qbe5 Ra2 Bg4 Bb3 Bf3 Rc2 Bg4 Kf8 Bh5 Rd7 e7+ Ke8 Bg4 Ng3 Be6 Nf5 Bg8 Be3 Nf7 Bb6 h8R Be3 Kh7 g5 Nd8 g4 Nc6 g3 Kg6 Bf1 Kh7 g2 Kg6 g1B Kh7 Bh3 Kg6 Rd6 Bh7+ Kd7 Kf7 Bg2 Kf8 Bb6 Bg3 Bge3 Bf2 Rf3 Nbd4 Rf4 e8B+ Kc7 Ne7 Kd8 Qa5 Rd5 Ba4 Rd7 Qed5 Kc7 Qa8 Kd6 Nb5+ Ke6 Qd8 Ba1 Qa8 Kf6 Qd5 Bb2 Bg7+ Kg5 Bh6+ Kg4 Qc3 Ba2 Qce5 Kh3 Bb3 B2d4 Qee6 Bf6 Qee5 Rc1 Bc2 Bb3 Bd1 Ba4 Bb3 Rc2 Ba2 Bb3
1Qrb4/1R2K2b/4Rr2/2P1Q1Pb/NB1R1nrq/3R1b1b/b1k3n1/2N1BB1N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 b4 h5 c4 d3 e3 h4 g6 h3 c5 a4 b6 a3 g7 a2 b7 d2 b5 h2 g3 Nh6 g8R Ng4 b6 Rh6 e6 Nc6 b8B Nd4 e7 Ne6 Kd6 Ke4 b7 f5 Qe2 d1B Rg7 f4 Ba3 f3 Bb4 f2 Qb2 Rf6 Ne2 Kd3 e4 Bb3 e5 Nf4+ e6 Bc2 Nbc3 Ne3 g4 Neg2 Nc1+ Kd2 Rb1 a1R Na4+ Kd1 Rg8 Bh7 Qe5 Kc2 Rg7 Ra2 Rb3 Rb2 Rg1 h1B Rd3 Rb3 Rd4 Rg3 g5 Rg4 Rd3 Qe8 Bc7 Qh5 b8Q Qh4 Bca5 Ba6 Be1 Bc4 Bab4 Ba2 Rf7 Bg7 e8N Bh8 Ke7 d5 Ng7 d4 Nh5 Bg7 Qb7 Rc8 Qbb8 Bh8 Ng3 Bg7 Re3 d3 Re4 d2 Rd4 d1B Rd3 Ne3 Rd4 B1e4 Nh1 Bef3 Rg3 Neg2 Rh3 Bfe2 Rhd3 Bf3 Kd6 Bde2 Rb7 Bf8+ Kd7 Bd6 e7 Bc7 e8R Bd8 Re6 Bd1 Be2 f1B Ke8 Ne3 Kd7 Bh3 Bf1 Neg2 Ke8 Bfe4 Kd7 Beg6 Kd6 Bh5 Kd7 Bf3 Kd6 Ba5 Ke7 Bd8+
8/R4QR1/2Pr1Rb1/1Kb3kN/r1nN3b/n1Q1qR2/1P1b2b1/n1BQ1BNb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 d5+ Kc5 g5 h4 a5 f4 d3 c4 g4 b6 e5+ Kb5 g3 h6 d2 h5 a4 b7 d4 c5 d3 c6 e4 h7 e3 h6 a3 Qf3 d1B Ra2 g2 Qd5 d2 Qc4 e2 Ra1 e1B Nf3 g1B Nd4 a2 Nc3 Na6 b8N Bb4 Nce2 Bh4 Qc2 Qe7 Rh3 Bd7 Rf3 Qe3 Qd3 Bgf2 Ng1 Bc2 Qe2 Ne7 Qd1 Rc8 h8R Rd8 h7 Ng6 Rg8 Ne5 Rg7 Nc4 h8Q Bc5 Nb3 Nb4 Nd4 Bg5 Qh3 Bfh4 Qg3 Be6 Qh3 Bf7 Nd7+ Ke7 Qg3 Ra4 Nf6 Rd6 Nh5 Be4 Qh3 Nc2 f6+ Ke8 f5 Bg6 f7+ Ke7 Rf2 Bg2 Rf3 Bh1 f8R+ Bf7 Qe1 d1B Qd2 Be2 Qd1 Bd3 Qg3 Be4 Qge1 Bh6 Qc3 Bf4 Ng3 Kf6 Nh5+ Ke5 f6 Bfg6 f7 Bd5 Rb1 a1N Ra8 Bfg5 f8Q Bf4 Qf7 Bde4 Rg3 Beg2 Ra7 Bh6 Nf6 Kf4 Rf3+ Kg5 Nh5 Re6 Rf6 Rd6 Qe2 Nb6 Bd2 Qf4 Re1 Nc4 Qed3 Kg4 Bc1 Qf3 Qe2 Bd2 Qd1 Kg5 Re3 Qe4 Rh3 Qe3 Rhf3 N2a3+
5br1/NRRN3n/kn2r1qb/3QBN1B/1Q3b2/4Rr1P/Prb5/1BB2K1b w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 Kd7 d4 f5 h3 b5 d6 Kc6 d5+ Kb7 e6 c5 d7 g5 h6 c4 e7 f4 e8R f3 h7 c3 d6 c2 e5 b3 e6 g4 e7 b2 Bd3 b4 Bg5 c1B Qa4 f2+ Kf1 b3 Qf4 g3 Bh6 Nf6 Nc3 b1R Ne4 b2 Nf3 Ra3 Nh4 Rg8 h8B Qb6 d8Q Nbd7 Nf5 Nh7 Nf6 Qc6 Be4 Nb6 Nd7 Ka6 Be5 Bb7 Bc2 Rc3 Qb4 Qe4 Rg1 Qg4 Bhf4 Bh1 Rg2 Qg6 Bg5 Rc7 Qa8+ Ra7 Qd5 Rc7 Rc8 Rc6 e8B Rc3 Rc7 Bf4+ Ke2 f1R Rb7 Qe6 Bh5 Qg6 Rg1 Rff3 Rc1 g2 Be4 Rcd3 Rcc7 g1B Bh6 Bge3 Bg5 Rbf1 Re1 Rb3 Bb1 Rg3 Bh6 Rfg1 Bg5 R1g2+ Kf1 Bc1 Re3 Re2 Nf6 Bd2 d7 Bc1 d8N Bd2 Bc2 b1B Nd7 Rb2 Nc6 Bc1 Be4 Bc2 Na7 Bb3 Bb1 Bc2 Rb3 Ree3 Bef6 Re6 Re3 Rb3 Bb2 Bd2 Bc1 Rb2 Bf6 B4h6 Be5 Bf4 Re2 B4h6 Re1 Bdf4 Re3 Rf3+
N7/1r1r3Q/n1n1NR1R/2nB2Qr/P1q2QRn/1k4bB/3P1Bn1/Br1b2K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 f4 c5 Kf2 h5 g4 b5 d6 e5 f6 Ke6 f5+ Kd5 g6 h4 f7 b3 d7 h3 g7 b2 f6 b4 g5 c4 g6 h2 Na3 b1R Kg2 b3 Qe1 b2 Be2 c3 Qh4 e4 Qh7 c2 Bg4 e3 Nb5 Kc4 Ne2 Qc7 d8Q Ne7 g8B Kb3 g7 Na6 Nf4 e2 Bh3 Ra7 Ne6 Qc4 Nbc7 Nc6 Na8 Bd6 f8Q Bg3 f7 Rd7 Qg5 Bb7 Rf1 h1N Kg1 e1N Rf6 Ng2 Qd6 Bc8 f8B Bb7 Qdf4 Bc8 Qhg6 Rh5 Qh7 Nf2 Rh6 Nh4 Qfg4 Ne4 Nec7 Re7 Q5f5 Kb4 Ra3 Ra1 Rf3 Ra3 Rf2 Rb3 Bd5 b1R g8R Bd7 Bg7 Nec5 Ba1 Bc8 Qgf3 Bd7 Qf6 Bg4 Ne6 Rd7 Q3f5 Bf3 Rg4 Bd1 Bcb2 c1N Q6g5 N1d3 Bd4 Nf4 Qe5 Nfg2 Rff6 Ka3 Bf2 Rbb7 Qef4 Kb3
1B3r2/1bN2b2/5b2/KR1BnBkP/1Nnqn2R/3rbn2/3QRNP1/nQ3N2 w - - 0 1 illegal: No proof kernel
2kr1NQ1/2B1nb2/1R3N2/nBqqPqr1/1b1qB3/1R3R2/1PR5/QK1qq2N w - - 0 1 illegal: No possible last move, all moves rejected
1n1q4/QB1b1Q2/1R1B4/1B1P1rn1/1r1n1P1k/1n2NrN1/Qb3R1K/2QrN1n1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kf6 Kf2 e5 d4 h5 g4 c5 Kg2 a5 b6 h3+ Kh2 e4 b5 e3 d6 c4 d7 a4 g5+ Kg7 f6+ Kg6 b7 c3 f7 a3 b6 c2 Ra2 e2 Nc3 e1R Nce2 h4 Nf3 Kh5 g6 Ra5 g7 Ne7 g8B Bg7 f8Q Rf5 Bd5 Nec6 Ng3+ Kg4 Bd3 Rf1 Ne1+ Rf3 Qf7 Bf6 Bd2 c1N Bb4 Ne2 Qc1 Ng1 Rf2 a2 Bb5 a1N Bd6 Nb3 Be4 Re8 Bd5 Re2 Be4 Rb2 Bd5 Qe7 d8N Bd7 Ne6 Qd8 Ng7 Be5 Bdc4 Rb1 d5 Bb2 Ba6 Ncd4 Bcb5 Ra1 Qe6 Ra4 Qf7 Nbc6 b8Q Rb4 Qa7 Nb8 b7 Nge2 Rhf1 Ng1 Kh1 h2 Kg2 h1N Kh2 h3 Qa8 Nbc6 b8Q Kh4 Qba7 Nb8 Bc8 Nge2 Bb7 Ng1 Rc2 Nf2 Rc6 Ne4 Rf2 Ng5 Rb6 Kg4 Qa2 Kh4 Q8a7 Rf6 Kh1 h2 Kg2 h1R N7f5+ Kg4 Ne3+ Kh4 Bc4 Rf5 Bf1 N1h3 Bb5 Rf1 Kh2 Ng1 Nd3 Rd1 Ne1 Qc8 Qab1 Qe8 Qba2 Qd8
1Q4Nn/b1b3R1/B1kP1nP1/2q2r1n/b1BR1n2/2Q1K1b1/B1b3NB/2R1rN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 f5 d4 h5 b4 c5 e4 a5 d6 c4 d5 h4 e5 c3 b6 a4 g6 c2 g5 a3 b5 a2 b7 h3 b6 h2 g7 f3 g6 f4 Bc4 Nh6 g8B Qc7 Nd2 Qc5+ Ke1 f2+ Ke2 f1N Qe1 f3+ Kd3 f2 Ngf3 Ne3 Bf7 f1N Nh4 Ra5 Ng2 Ng3 Nf1 Nh5 Qc3 Rb5 Bd2 c1B Ke2 Bb2 Rc1 a1B Be1 Bg7 Bg3 Re8 Bg8 Nf7 e6+ Kd8 d7 Bd4 Kd3 Nh8 Kd2 Ke7 d8R Nd7 b8Q Ndf6 b7 Bd7 Ke2 Ra5 Bc7 Ba4 Rd7+ Kf8 Rg7 Bc2 Rg1 h1B Bh2 Ba4 Bf7 Ke7 Rd1 Be5 Rd4 Bc7 Ba2 Bc1 Kf3 Bd2 Ke2 Be1 d6+ Kf8 Kd3 Ned5 Ke2 Ndf4+ Ke3 Bg3 Bg8 Rc8 e7+ Ke8 Bgc4 Kd7 Ba6 Kc6 e8B+ Kb6 Bef7 Kc6 Bfc4 Bb2 Ne1 Be4 Ng2 Rg8 Qd8 Bec2 b8N+ Kb6 Nc6 Re8+ Ne7 Bc1+ Kf3 Be3 Ng8 Kc6 Qb8 Re4 Nd2 Bef2 Rc1 Re1 Nf1 Qa3 Rd2 Rf5 Rd5 Ba7 Rd4 Ne2+ Ke3 Qc5 Bd3 Nef4+ Be2 Rd1 Bec4 Re1+
1rBn1n2/QBQ1R1B1/1BPn4/br4N1/1RR1bPrr/3q4/Nn2QK1k/6n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 a5 g4 d5 b4 e5 g6+ Kf6 c5 h5 b6 h4 g7 e4 b7 h3 c6 e3 b5 e2 b6 d3 Rh2 d4 Qc2 a4 Qc4 a3 Bb2 a2 Qa6 d2+ Kf2 d1R Qa3 e1N Qa4 Rh4 Ba6 Nf3 Nc3 d3 Rc1 Nd7 b8Q a1R b7 d2 Qc7 Nh6 g8Q Bb4 b8R Nf8 Bb7 Rb1 Qga2 Qd3 Qa7 Nf7 Ba1 Ba5 g5+ Kg7 g6 Kf6 g7 Rb5 g8B Nd8 Rg2 h2 Nh3 Rg1 Rg7 Rgg4 Ng5 Ng1 Be6 Bd7 Re7 d1N+ Ke1 h1N Qe2 Be8 Bec8 Ng3 Rc2 Nb2 Kf2 Bf7 Na2 Bd5 Rc4 Be4 Re5 Na4 Bd4 Nb2 Be3 Nh5 Re8 Ng7 Re7 Ne8 Bb6 Nd6 Nf7 Kg7 f6+ Kg6 Ng5 Kh5 f7 Rh3 Ba6 Kh4 Bab7 Rh1 Ne6 Kh3 Ng5+ Kh2 Qd7 Nh7 f8B Rh4 Qc7 Rg4 Bg7 Nf8 Bc5 Rb4 Ba6 Rb3 Rbb4 Rb8 Bab7 Ra8 Ra4 Rb5 Rab4 Rb8 Ke1+ Kg3 Bb6 Rhh4 Kf1 Bg2+ Ke1 Kh2 Kf2 Be4
2N1Bb2/r7/PN2bRrb/4Q1B1/Kr2qP1r/4b1r1/k4nQR/B1Q2QnR w - - 0 1 illegal: No possible last move, all moves rejected
1N3R2/1nkPbbN1/2qb4/r1rqb2B/3n2bb/3BRR1Q/KB1P2N1/2QR4 w - - 0 1 illegal: No possible last move
1kN2Rn1/rq1PrB2/B2bb2r/2QNQ1N1/3B1P2/1n2r2n/1N1Q1nK1/2R4r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 h5 g4 e5 d4 c5 d6 h3 d5 h2 b6 e4 f6 h4 g5 e3+ Kg2 a4 b7 c4 b5 e2 b6 e1R f7 c3 g6 a3 g7 c2 Ba6 a2 Nf3 Ra7 Na3 Qc7 Ng5 Nf6 g8B Bh6 f8Q Re3 Nc4 Nh7 Qd2 Bg7 Bb2 c1R Bd4 Be5 Nb2 Rce1 Bf7 Nc6 b8Q Ne7 b7 Ng8 Rc1 a1N Rg1 Nb3 Rh1 Qd8 Rg1 Qe8 Rh1 Kd8 d7 Bd6 Rg1 Re7 Rh1 R1e3 Rhg1 Bc5 Qe5 h1N b8N Bd6 Nc6+ Kc7 d8N Nf2 Nb4+ Kb8 Nb7 Be6 Rge1 Qc8 Rh1 Bc7 d6 h3+ Kh2 Bd7 Nd5 Be6 d7 Bd6 Kg1 h2+ Kg2 Nh3 Rhe1 h1R Re2 Nhf6 Ree1 Bc7 Nd6 Rh6 Rg1 Ng4 Rge1 Qd8 Nc8 Ngf2 Re2 Re8 Qc5 Bd6 Ree1 Qb6 Re2 Re4 Re3 Qb7 Rg3 Re3 Rg4 Rf6 Rh4 Re7 Rh8 Nh6 Re8 Ng8 Rf8 Rh6
2rnR3/3PP3/2NBkr2/1N4b1/1bb1b1r1/1rb1Q3/K1RNB2n/1qB1Q1RB w - - 0 1 illegal: No possible last move, all moves rejected
qbB5/N1PB1nn1/1R4nn/Pn4R1/KQ1NkN1B/2Q1bb2/B2r2R1/5rb1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 h4 g5 a4 b5 f4+ Ke4 c4 d5 f6 e5 h5 d4 h6 g3 f5 d3 a6 g4 h7 g2 a7 d2 f7 g3 a5 Qc7 f6 Bg4 Qb3 d1N Nh3 g1B Ra2 g2 Na3 Bf3 Nf4 Nh6 Qc3 Nd7 Rh5 Qc8 Rg5 Bd6 f8N Ne3 f7 Nef5 N8e6 Rf8 h8R Be3 Nd4 g1B Rag2 Bb8 c6 Ng7 c5 Qe8 Kb3 b4 Ka4 b3 c7 b2 c8B b1N Nab5 Na3 c6 Qd8 Bc4 Qe8 Nc7 Nb5 Bd2 Qd8 Be1 Qe8 Bh4 Qd8 Bb7 Qc8 Ba6 Rd8 Bb3 Nf8 Ba2 Ng6 f8Q Rd5 Qd6 Qg8 Bc8 Qe8 Nc2 Rd2 Nd4 Bh5 Rf8 Qe6 Ne8 Qd5 Rf6 Bef2 Nfe2 Bc7 Bb7 Rc8 a8B Bf3 Qb2 Bb8 Rf7 Ke3 Qdb4 e4 Nd6 Kd3 Rff5 e3 Rf6 Rc7 Nc8 Ke4 Nf4 e2 Qa1 e1N Na7 Be3 Bc8 Nd3 Bd7 Nde5 Bb7 Nef7 Bbc8 Nbd6 Qb5 Rb7 c7 Rb6 Qc1 Qa8 Qc3 Rb7 Qbc4 Rb1 Q4b4 Nb5 Rb6 Rf1
K1rnRQB1/4PPr1/5R2/1n2b3/2b1NBqk/Qr1r3b/2n2bQB/N2R3Q w - - 0 1 illegal: No proof kernel
rbB3R1/n2Nr2B/1B3K1q/1k2N3/n5B1/1q4nb/PbQ1RN1P/QR2n2b w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 b5 Kg4 g5 Kf5 c5 d4 c4 e4 g4 h6 g3 d6 Kc6+ e6 c3 d7 c2 e7 b3 e8B b2 e5 b4 e6 g2 e7 b3 h7 Na6 Bd3 Nc5 Nc3 b1Q Na4 b2 Nb6 Na4 Be3 c1B Nh3 g1N Nf2 Nf3 Re1 f6 Ke6 f5 Re2 f4 Bh5 Ne1 e8B f3 Bg4 Ne7 Kf6 Rg8 h8Q Rg7 Bdg6 Kb5 d5 Qc2 d6 b1B Qd2 Qb3 Bh7 Be4 Rb1 Bb2+ Bd4 Qc7 d8R+ Nc6 d7 Re7 Qc2 Na7 Beh5 Bh6 Rg8 Bf4 d8N Qc6+ Be6 Bd5 Nd7 Bb8 Nf7 Qa6 Nfe5 Bc6 Nh3 f2 Bb6 f1N Bhg4 Bh1 Nf2 Ng3 Nf8 Bcb7 Bc8 Bbg2 Nd7 Bh3 Qg7 Qb7 Qh6 Q7d5 Qhc1 Qd2 Q1d1 Qc1 Qd4 Ba3 Qa1 Bb2 Nc5 Qd2 Nd7 Qh6+
5R2/r1rn4/1NQN1bk1/1b3q2/5bBq/1NQRBP1n/P2qB1K1/R1b1R1q1 w - - 0 1 illegal: No possible last move, all moves rejected
1K4qn/2B1RB1R/5Q1r/NR6/4PQ2/nb3BqP/nN2rb1n/k1r1NrN1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 f5 Kf4 c5 d4 a5 e4 c4 b4 g3 b6 c3 d6 Ke6 b7 c2 d7 g2 b5 a4 b6 a3 Nc3 a2 Qg4 Ne7 Na4 Rh6 Be2 Na6 b8R Nb4 b7 g6 Ba3 c1R Bf3 Qc7 Rb1 a1N d8Q Nac2 Nb2 Na2 Bd6 Na3 Qg3 Qc3 Bc7 Bd7 Rc8 Ba4 b8N Bb3 Nc6 Qc4 Na5 g5+ Ke3 g4 Qf4 g3 d5+ Kf7 e6+ Kf6 Qdd6 Ng6 Re8 Nh8 Re7 Ra7 Qa6 Rb7 d6 Qd5 Qg5+ Ke5 d7+ Qd6 d8N Rb5 Nh3 g1N Ndb7 g2 Nc5 Bg7 Qg4 Bf6 Qb6 Bh4 Qc6 Rb4 Qg5 Rbc4 Qa6 R4c2 Qf4+ Kf6 Qc6 Qd8 Ncd3 Qg8 Kd4 Re2 Ne1 Bf2+ Qe3 f4 Qd6 Nc2+ Kc5 Na3+ Kb6 Qg3 Ka7 Qg8 Bh5 Nf3 Ng1 Qg3 Qd8 Qg8 Kb8 Qg3 Nh3 g1Q Bf7 Q1g2 Ng1 Qg8 Bh5 Q2g3 Bg4 Ne5 Bf3 Ng4 h3 Nh2 Rh7+ Kg6 e7 Kf6 e8B+ Ke6 Bb6 Ke5 Bf7 Rc3 Rd1 Rc7 Rd7 Rc1 Bg4 f3 Bc7+ Rd6 Qh6 Kd4 Qf4 Kc3 Re7 Rh6 Qf8 Bb6 Bgh5 f2 Bf3 f1R Qd8 Ng4 Rh2 Bf2 Rg2 Nh2 Qf8 Q3g7 Rg5 Qg6 Rb5 Qg3 Ng2 Kc2 Ne1+ Kb1 Qf6 Ka1 Qf4 Q8g4 Qg7 Qg5 Qgf6 Qg8+
kBB1N1qN/2KNR2r/4b3/1Qn4P/1b2P3/2BNb1R1/q3rQ2/2nrrR1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 g5 h4 c5 e4 Kc7 b4 Kb7 d4 a4 h6 c4 h5 g4 d6 g3 b6 g2 d5 c3 d7 a3 b5 c2 d6 a2 h7 f3 Bd2 c1R Qc2 f4 Ne2 g1B Na3 f2 Nc4 f3 Nf4 Bh6 Rh3 Ra3 Rg3 Bf8 Nd3 Ka8 Bc3 Rd1 Bh3 f1R Qf2 Nf6 Bf5 Na6 b7+ Kb8 Rb1 a1Q Be6 Qe8 d8R Qa2 d7 Rfe1 Nd6 Nb4 Rc1 Qf7 Re8 Qg8 d8Q Ra8 Re7 Nd7+ Kf5 Ra3 Qa5 Nc5 Ke5 Rb3 Bf5 Be6 Ne8 Rb2 Kd6 Rc2 Qa4 Rce2 Qb3 Ka7 b8N+ Ka8 b6 Qa3 Nf6 Na2 Nbd7 Qa5 Rb1 Nc1 Qb5 Qa1 Ne8 Qa2 Qg2 f2 Kc7 f1B Qf2 Bg2 b7+ Ka7 b8B+ Ka8 Qf4 Be3 Qf2 Bh1 Ra1 Qg5 Bg4 Rg8 h8N Rg7 Rb1 Rh7 N7e5 Bd5 Bc8 Be6 Nd7 Qg8 Nf4 Nb7 Qd5 Rd3 Rh3 Nb3 Rg7 Rf1 Rhg3 Bb4 Qb5 N7c5 Re7 Rd5 Re1 Rd1 Nd3 Nc1 Qg2 Rf3 Rg1 Ree1 Rf1 Rf2 Qh2 Rfd2 Qf2 Rde2
1B1Q2rb/bQ1q1B1N/4bBn1/4Pq2/1Q2B2r/1rN1rb2/1PN4R/n1k3KR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 Kd6 e4 Ke5 g6 Kd4 g5 c5 e5 h5 d3 f5 b6 a5 b7 h4 g7 a4 d6 c4 d7 c3 g6 f3 Bh3 f4 Qe1 a3 Bf5 c2 Qd2 h3 Be6 h2 Bf7 a2 Be6 Ne7 g8B Nbc6 b8N Nb4 g7 Ng6 Nc3 Rh4 Bef7 Qe7 d8B Be6 Bh7 Qd7 g8Q Bg7 Na6 Bh8 Rb1 a1R Bf6 Ra3 Qb8 Rb3 Qb7 Rg8 Kf1 f2 Nh3 Bg7 Ng5 Bh8 Kg2 f1R Ra1 Re1 Rb1 Nc6 Nb4 f3+ Kf2 Re3 Kf1 Nf4 Be4 f2 Nh7 Ng6 Qe1 Na5 Bd2 c1B Nc2+ Kc5 d4+ Kc4 Kg2 f1B+ Kf2 Be2 d5 Bd1 d6 Bf3 Rg1 h1Q Rg2 Qh3 Rh2 Qf5 Kg1 Re2 Bdg5 Re3 Bd8 Bd2 Bgf6 Bc1 Bc7 Bd2 Bd5+ Kd3 Bb8 Bc1 Qg3 Bd2 Qf4 Be1 Qfb4 Bf2+ Kf1 Kd2 Be4 Ra3 Ra1 Nb3 Rb1 Na1 Rc1 Qc7 d7 Rb3 d8Q+ Qd7 Rb1 Bg4 Kg2 Bh5 Rg1 Bf3+ Kf1 Kc1 Rgh1 Bg3 Kg1 Bf4 Qd4 Bh6 Qd6 Bf8 Qd4 Bc5 Qdb4 Ba7
1N1Q4/Q1qRr1BQ/R6q/bkbP1Pn1/1r4Bn/3r4/r1BK2bN/2Q2bN1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 g4 e5 g5 c5 b6 a4 b7 c4 b5 c3 f6 c2 f5 e4 f7 h3 g6 h2 b6 h4 g7 a3 d6 Kc6 d7 a2 Nd2 h3 Qe2 e3 Nb3 Rh4 Bd2 c1R+ Qd1 e2 d5+ Kb5 Bg2 Ra3 Bc3 Nc6 b8Q Nf6 g8B Qc7 d8Q Ne7 b7 Ng6 Be4 Nh7 Qa7 Ng5 b8N Bc5 f8Q Ba6 Bc2 Rb4 Qf7 Nh4 Kd2 e1R Qh7 Re7 Qe1 Ra5 Bg7 Rd1+ Kc3 Rd2 Qc1 Ra3 Bf7 Rd3+ Kb2 Ra5 Bh5 Ra3 Bg4 Raa4 Ne2 Ra5 Re1 h1B Ng1 h2 Re6 Bf3 Rd6 h1Q Rd7 Qhh2 Qhh8 Bg2 Qh7 Rc4 Nd2 Rb4+ Bb3 Qhd6 Kc2 Qh6 Ndf3 Ra3 Nh2 Raa4 Rb1 a1B Rb2 Ra5 Ra2 Bc3 Ra3 Bd2 Ra1 Ra2+ Kd1 Rbe4 Bc2 Ba5+ Qd2 Rb3 Qc1 Reb4 Kd2 Ka4 Bh5 Baf1 Bd1 Kb5 Bg4 Rab2 Ra4 Ra2 Ra3 Bab6 Ra6 Ba5 Be5 Rba3 Bg7 Rd3#
Bbk5/nn1nq1N1/r2b4/R1Pn1Q1r/4qRN1/QK3N2/bBR2P2/N1b2B2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 b4 e5 c4 d5 Kc2 Kd7 g4 h5 f6 h4 b6 a4 b7 e4 f7 a3 c5 d3+ Kb3 d4 b5 d2 b6 h3 g6 h2 g7 e3 g5 a2 g6 d3 Kb2 e2 Qc2 e1B Kb3 d1N Bb2 d2 Qe4 Ne3 Na3 d1N Nc2 Ne7 g8B Ra6 g7 N3f5 Nf3 Nc3 Qd3+ Nd6 Qf5+ Kc6 Bh7 Ncb5 g8N Nd5 Nf6 Nd7 b8Q Na7 b7 Bd2 Qa8 Kc7 b8R Bc1 Rb4 Qe7 Rf4 Nb7 Ng4 Kd8 Rg1 h1Q Bg8 Rh5 Rg3 Bg7 f8N Be5 Rg1 Bd6 Ne6+ Ke8 Ng7+ Kd8 Nh4 Qhe4 Nf3 Ne3 Bgc4 Nd5 Bg2 Kc7 Rd1 Kd8 Bcf1 Kc7 Rd4 Kd8 Ra4 Kc7 Rb1 a1B Ra5 Kd8 Ba3 Bf6 Na1 Bfe5 Rb2 Bb8 Rc2 Bed6 Bh1 N7b6 Qg6 Bf5 Bb2 Nd7 Qg5 Bh7 Qf5 Kc8 Bc3 Qe1 Qf7 Nd8 Nfh2 Rc6 Rd2 Nc7 Raa4 Nab5 Bb2 Bb1 Rc2 Q1e5 Qa5 Na7 Qf5 Ra6 Ba8 Nd5 Nf3 Nb7 Qb4 Qe1 Ra5 Q1e4 Qa3 Ba2+
2n1b1r1/1R2nq1Q/Q1NbPq2/1N1P1R2/2Qn1R2/4Nnk1/1K1rB3/B2Rr1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 h4 Kd6 d4 g5 Kd2 c5 Kc2 a5 e4 f5 b6 f3 b7 c4 e5+ Kd7 d6 Ke6 h6 c3 b5 a4 h7 f2 h5 g4 d7 f4 b6 Kf5 h6 f3 d5 g3 e6 Kg4 Na3 g2 Nh3 g1N Bb2 Bd6 Be2 f1R Qc1 Nc6 b8N Na7 b7 Qf6 d8R Kg3 Nf4 f2 Rh4 Re1 Nc6 f1Q b8R Nf3 Rb7 Ne7 Rf8 Rg8 h8Q Bd7 h7 Nac8 Ng2 Be8 Nb5 a3 Ne3 a2 Rf4 Ra3 Rb1 Qf2 Ba1 Rg1 Qf1 Qf7 Kc1 c2 Qd4 Rd3 Kb2 c1N h8Q Nb3 Qc4 Nbd4 Rd1 Qf6 Qh7 Qf7 Kc1 Qf6 Bc3 a1R+ Kb2 Qg7 R8f5 Qf7 Rd2 Re1 Rd1 Qg2 Kc1 Qh3 Ba1 Qh4 Kb2 Qhf6 Qa2 Ba3+ Kb1 Bb4 Qa6 Rd2 Bc4 Ba3 Qd3 Bd6 Qb3 Rgf1 Be2 Rg1 Qc4 Rd3 Kb2 Rd2+
qr1b3B/P1n1Q1N1/1Rr1N1R1/1n5Q/rN2K1BB/5R2/2bn1Pq1/R2r1nk1 w - - 0 1 illegal: No possible last move
1r2q1b1/P1R1RQb1/nNP4n/1B5n/1K1b1n2/QR1B1b1q/1B5r/4QBkN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 f4 d5 g4 h5 c4 e5 a4 b5 f6 Ke6 g6 h4 g5 Kf5 g7 Ke4 f5 b3 Kc3 b2 a5 d4+ Kb3 b4 c6 h3 c7 d3 c5 d2 f7 Ke3 f6 Kf2 a6 e4 c6 e3 g6 e2 a7 e1B Bb5 h2 Na3 b1N Nc4 Qe8 Ra3 Nd7 Nb6 Nc3 Bb2 Nh6 g8B Rb8 g7 Nd5 Ne2 Nf4 Ng3 Nc5+ Kc4 b3 Kb4 Bg4 c8R Bf3 Bh7 Kg2 g8B Bf2 Qb1 d1Q Rc7 Qdd7 Re1 h1N Bhd3 Qh3 Ree7 Bg7 f8Q Bd4 f7 Kf2 Bf1 Kg1 Qe1 Rh7 Bc3 b2 Rb3 b1B Bb2 Rh8 Bh7 Ba2 Bhd3 Rh7 Qg8 Rh8 f8Q Rh7 Ne4 Ng3 Qgf7 Ngh5 Nf2 Rh8 Nh1 Rh7 Rc3 Bad5 Rb3 Bc4 Qf5 Bg8 Q5f7 Qg4 Na8 Ng3 Bg6 Nb7 Nb6 Nhf5 Ree3 Rh2 Ka4 Nh6 Bgd3 Qh3 Qa3 Nc5+ Kb4 Ngh5 Ree7 Na6+
1QN1KN2/2rr3n/1Q2q1r1/4B1R1/1Q2N2b/n5Rb/nP1P2pq/BB1Q2qk w - - 0 1 illegal: Other
1qq3Q1/rr2b3/b1Q1R3/k3N2b/4n1qQ/2R1PnrN/1N1QP2p/2KB2BB w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 h4 d5 cxd5 gxh4 Rh3 e4 Rh1 e3 fxe3 Ba6 Rh3 Bb7 Rh1 Bc8 g4 Kd7 d4 a5 Kd2 c5 b4 Kc7 b6+ Kb7 b5 h5 g5 f5 g6 a4 g7 c4 d6 a3 d5 a2 d7 f4 d6 f3 Nh3 f2 Qc2 Qe8 d8Q Nf6 g8B Nbd7 Nc3 Ra7 Nd1 Ne5 d7 Be7 Ba3 c3+ Kc1 Ne4 Bd6 Nf3 Nb2 Rh7 Bg2 f1B Qa4 c2 Bb3 Qg8 Bh2 Qg4 Rb1 a1Q Bg1 Qa3 Qg8 Qd6 d8Q Qb8 Qd2 Rf7 Rh2 Rg7 Bh1 Bg2 Ra1 Rh7 Ra3 Rf7 Nf2 h3 Qad4 h4 Ba4 Ne5 Rc3 Bf3 Rg2 h2 Nh3 Qg5 Rf2 Bh5 Rf6 Qg4 Re6 Nf3 Qb4 Ka8 Qe8 Ba6 Qc6+ Rb7 Bg2 h1Q Bb3 Qhh2 Bh1 Qc8 Qbd4 Kb8 Qf6 Ra7 b7 Rg7 Nf4 h3 Qh4 Qhg3 Ba4 h2 Nh3 Ra8 Bb3 Ka7 b8N Qe5 Nd7 Qeb8 Qc4 Kb7 b6 Ra7 Qa4 Qf5 Qb5 Rg3 Ne5 Qg4 Qa4 Bc4 Qc6+ Ka6 b7+ Ka5 Ba4 Ba6 Bb3 Qbc7 b8Q Rb7 Qa7 Q7b8 Qa8 Rc7 Qe8 Ra7 Na4 Qbb7 Qg8 Qb4 Qc6 Qd6 Kb2 c1R Bd1 Rb1+ Kc2 Rb4 Kc1 Rbb7 Nb2 Qdb8
2K3R1/2bB4/2r3n1/kr1q1Q2/N2Rb1N1/BBqPq1NP/1pQb3r/n1N3Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 Ke5 Kb6 f4 g5 a4 c4 h3 e6 d6 c3 f6 b3 h6 c2 d7 g4 h7 g3 f5 b2 f7 g2 f6 Qe8 d8N Be7 f8N Bd7 a5+ Ka7 f7 b5 a6 Kb6 a7 b4 Ng6 b3 f8Q Bc6 Bb5 Qd7 d3 Na6 Nd2 b1R Nf1 Nc5 Ng3 Be4 Nb7 Bd8 Qf5 Ne7 N1e2 g1Q Ra4 Qe3 Ba3 c1B Rg1 Bd2 Qc2 Bc7+ Kf6 b2 Nc1 e5 Rd4 Rab8 a8B Nb3 Nc5 Na1 Na4+ Ka5 Bd5 Rhc8 Bb3 Qd5 h8Q Rb7 Bd7 Rb5 Nf4 Ng6 Nfh5 Rc5 Qg7 Rb5 Na2 Re1 Nc1 Re2 Qg8 Rh2 Rg2 Qc6+ Kf7 Qc5 Nf6 Qd6 Ng4 Qd5+ Be6 Bd8 Ke8 Rc6 Bc8 Bc7 Bd7 Nf4 Nf1 Rc4 Nh6 Qf2 Qf6 Bf5 Re4 Rc6 Rg1 Qfd4 Qfe6 Qb4 Rd4 e4 Qg5 e3 Qe4 Bd6 Kd8 Bc7+ Kc8 e2 Qh1 Be4 Qf5 e1Q Rg8 Qc3 Ng4 Qe3 Ng3 Ng6 Qg2 Qe2 Qg1 Qe3
1rb1BnN1/q2nb3/1k1BR3/1r3Bqb/PRRNP3/5p1Q/1R1Q2Q1/2qK3n w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 h4 f5 a4 g5 e4 c5 h6 Kc7 h7 b5 d6+ Kb6 h5 b3 h6 g4 d7 c4 d5 g3 e6 b2 e7 c3 e8B f4 d6 f3 Bf4 c2 Rh2 c1Q Nc3 b1B Nge2 b4 Bh3 b3 Bf5 g2 Nd4 g1N Rb2 Qc2 Qd2 Nh3 Qg2 Ba2 Rc1 Qg5 d8R Ne7 d7 Ng6 Bd6 Be7 Rcb1 Rg8 h8R Ra5 h7 Rb5 Rc1 Nf8 Nd5+ Ka6 Nf6 Kb6 Rcb1 Nf2 Rc1 Qc5 Rc4 Nh1 Rb4 Qc3+ Kd1 Rg6 Ng8 Rf6 Rd2 b2 Rc2 Bf7 Re2 Ba6 Rc8 Bh5 Rcc4 Bc8 d8Q+ Ka7 Rc2 b1Q+ Rc1 Qba1 Rcb1 Nbd7 Qa5+ Kb7 Rb2 Qce3 Qad2 Kb6 Rbb4 Qaa3 R1b2 Rf7 Nf6 Qac3 Rg8 Bb7 h8Q Bc8 Rg6 Rg7 Qh7 Rg8 Qh6 Rh8 Ng8 Qf2 Re6 Qfe3 Ne2 Qc5 Qh7 Qc7 Qh6 Qa7 Nd4 Bf7 Ke1 Nh7 Nf6 Ba6 Qhh3 Bh5 Beg6 Rb8 Be8 Nhf8 Ng8 Bc8 Kd1 Qc1+
r4Qr1/3KQ2Q/2N1Rqn1/1nNN1Bk1/p1B1Pb1q/1B3r1n/1Pb5/b5BR w - - 0 1 legal: proof: f4 b5 h4 d5 c4 e5 cxd5 g5 fxe5 Nh6 hxg5 Ng8 a4 bxa4 Rh6 Ke7 Kf2 f5 Ke3 a5 Kf4 c5 d4 a3 g4 c4 e4 a4 g6 c3 g7 a2 e6 c2 Ke5 f4 d6+ Ke8 e7 Kf7 d7 f3 Kd6 f2 d5 Na6 g5 Qe8 d8Q Nb8 g6+ Kf6 Nd2 Nc6 Nh3 Be6 Nf4 Qf7 Qf3 Nd4 Nb3 Nb5+ Kc6 Bg4 Nc5 Kg5 Be3 c1N d6 Ne2 d7 Ng1 Bc4 f1R Bb3 Qf5 e8B+ Be7 Qc7 Bd6 d8N Qe5 Re1 a1B Bd7 Qe7 Qh3 Bd1 Bf5 Bc2 Bd4 Qf8 Qf7 Bb8 Kd7 Ne7 g8B Rf3 g7 Be5 Rf6 h5 Nc6 Ng6 Qe7 h4 Bgc4 Bc7 Qh1 h3 g8Q h2 Nd5 Bf4 Re6+ Qf6 Qgf8 Rg8 Qg2+ Kh5 Qh3+ Kg5 Qhh7 h1Q Rb1 Qh4 Rc1 Nh3 Rh1 Bd6 Bg1 Bf4
2NB1b2/1n3QNN/QB6/7p/R1Nrn1qP/bK5Q/BRbrP2r/qn1k4 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 Ke7 Kc3 Ke6 f4 Kf5 c6 Ke4 f5 a5 c7 g5 h3 d5 b6 d4+ Kb2 a4 c4 g3 f6 g2 f7 g4 c5 d3 e6 d2 e7 Ke3 e8N a3+ Kb3 g3 b7 a2 c6 Qd7 Nf3 g1N Bg2 Ra4 Na3 Nf6 Qf1 Na6 b8B Qg4 Ng7 Bf5 c8N Ne4 c7 Rd4 Ng5 Nf3 Ba7 h6 Bb2 d1R Nh7 Rd2 Bb6 Bg6 Rb1 a1Q Bc3 Bf5 Rb2 Bg6 Rh2 Bf5 Bh1 g2 Bca5 g1B Rf2 Bh2 Rg2 Bhd6 Nc4+ Kf4 Rh2 Ba3 Bg2 Kg3 Qh1 Kf2 h4 h5 Rh3 Rg8 Rg3 Bg6 Qh3 Ke1 Bh1 Kd1 Rg2 Bfd6 f8Q Bf5 Qf7 Bf8 Na7 Bg6 c8Q Bf5 Qcb7 Bg6 Bd8 Bf5 Bab6 Bg6 Ka4 Bf5 Nc8 Nac5+ Ka5 Bg6 Qa6 Nb7+ Ka4 Neg5 Bbc7 Bd3 Bb6 Ne4 Rg3 Nfg5 Rg2 Nc3+ Kb3 Nge4 Rf2 Nb1 Rf4 Ng3 Bd5 Ne4 Ne8 Rg6 Ng7 Rf6 Be6 Rg6 Rf5 Rf6 Ra5 Rf2 Ra4 Rh2 Ne5 Rd7 Bd5 Bc2+ Kc4 Bae7 Be6 R7d6 Kb4 Bd3 Ba2 Rd4+ Kb3 Ba3 Nc4 Bc2+
QBB1bN2/2r2NR1/qR6/b3bQP1/2P1pN2/n1QnNr2/1q2n3/r1B2K1k w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 g4 h5 f4 a5 b4 d5 g6+ Kf6 b6 e5 b5 d3 b7 h4 g7 d2+ Kf2 e4 b6 h3 Ba3 d4 Ke2 d3+ Kf2 a4 Ra2 h2 Bd6 a3 Bc5 Rh3 Qa4 d1R Qd7 d2 Rb2 a2 Qd3 a1B Be3 Bd7 Ne2 Bb4 Nbc3 Qc8 Rg1 Na6 b8Q h1Q b7 Ra7 Qa8 Be8 b8B Ba5 Rb6+ Qc6 Qc2 Nc5 Qb3 Re1 Nd1 Be5 Qc3 Rc7 Rg2 Ne7 g8N+ Kf7 f6 Kg6 f7 Qh2 f8Q Nf5 Nh6 Nd6 Nf7 Nb5 f5+ Kf6 Qa6 Na3 Qa8 Qd6 Bh6 Qe6 Ne3 Ra1 Nf4 d1N+ Ke1 Rf3 Rg3 Qb2 Bh3 Nb3 Qc5 Nc1 Qcd5 Nf2 Kf1 Qc6 Bg5+ Kg7 f6+ Kh7 Qdd2 Nfd3+ Qf2 Qe6 Nh8 Qc8 f7 Qa6 f8N+ Kg7 Bf6+ Kh6 Bg7+ Kg5 Bh6+ Kh4 Nf7 Ra2 Ne2 Rf6 Qf5 Ra1 Nf4 Ne2+ Nd1 Rg6 Nh5 Nef4 Qe6 Ne2 Bc1 Qb7 Ne3 Qa6 Nf4 Rg7 Rg1 Rh7 Rh1 Kg3 g5 Rh4 Bf5 Rg4 Rh7 Kf3 Qc8 Rg3 Rg7 Rh3 Qd7 Kg3 Qe6 Kh2 Qf6 Kh1 Bc8 Rg3 Qf5 Rf3#
5k1n/1b5Q/1nBq3q/n2NrPR1/1N1prRN1/1B1Rr2q/2QP1bK1/2N3B1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 g4 h5 f4 e5 Kf2 d5 c4 a5 c6 a4 b6 e4 g5 h3 b7 h4 c5 a3 g6 h2 c7 a2 c6 h3 g7 Bb4 f6 Bf8 f7+ Ke7 Ba3+ Qd6 Qc2 Nf6 g8N+ Ke6 Ne2 Nh7 Nbc3 Ra5 Nf6 Ke7 Rg1 h1Q Rg5 h2 Ng4 Nd7 b8N Bb7 c8B Nb6 c7 e3+ Kg3 Ra4 Bg2 Re4 Nc1 e2 Bc5 e1R Na6 R1e3+ Bf3 Bg7 f8R Bd4 Nb4 Re5 Rf6 Nf8 Be6 Rh4 c8Q Ng6 Qg8 Nh8 Qgh7+ Ke8 Rb1 a1N Rb3 Qf1 Ra3 Nb3 Bg8 Qd3 Kg2 Na5 Bf7+ Kf8 Be4 Rf3 Rff5 Bf2 Be3 d4 Ncd5 Bg3 Bg1 Bf2 Rf6 Qe3 Rd3 Rfh3 f5 Qf4 Re6 Re3 Bf3 R3e4 Rh6 Rh3 Rh4 Qe3 Be8 Qf4 Bd1 Rf3 Bc6 Rfe3 Qc4 Qh6 Bb3 Qd6 Qc2 Qh6 Rh3 Qd6 Rf3 h1Q+ Kf1 Qg3 Rf4 Qhh4 Nba2 Qhh6 Nab4 Qgh4 Kg2 Qh3+
2q2b2/Bq2n3/1r2B1k1/1Q1bp2N/QR1K2B1/b2R1PnP/n3N2N/2q2NrR w - - 0 1 illegal: No possible last move, all moves rejected
Nk2q3/2R1K2b/q2r2N1/nrp1N1nP/R3B3/bPq1BNn1/bB6/R3Q2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 g5 Ke4 f5+ Ke5 a5 e4 c5 h4 Kc7 d4 g4 b3 g3 b6+ Kb7 d6 g2 h6 a4 d7 f3 Ke6 f2 e5 f4 h7 f3 h5 a3 d5 a2 d6 Ra7 Nd2 Nf6 Rh4 Bg7 Nc4 Rf8 h8N Nh7 Qe1 Ra6 Be3 Nc6 Bd3 f1N Be4 f2 Ng6 Kb8 b7 Ng3 Nf3 f1B Nb6 g1Q Na8 Rg8 Kf7 Qf2 e6 Qc2 e7 Qc3 e8R Na5 Re7 Bd3 Rf4 Bb1 Ke6 Ka7 b8N Qe8 Nc6+ Kb7 Nce5+ Kb8 Rg4 Rb6 Rf4 Rb5 Rh4 Bb7 d8B Bh8 d7 Ng5+ Kd6 Bg7 Rf4 Rh8 Ref7 Rh6 Bf6 Bd5 Re7 Bg8 Qh1 Bh7 Rh4 Qc8 d8Q Bh8 Qf8 Qe8 Rc7 Qd2+ Nd3 Qb4 Ngf4 Qa3 Qg8 Ne6 Bc6 Nf1 Qgg1 Ng5 Qf2 Ng3 Qfe1 Bg7 Bd5 Nc6 Rg4 Qa6 Rh4 Bc2 Rc1 a1Q Rd1 Qb2 Ra1 Na5+ Bc6 Bb1 Rg4 Qh8 Ke7 Ba2 Be5 Rf6 Ng6 Rd6 Ra4 Qd2 Be4 Qb4 Bc1 Qhc8 Bef4 Bb2 Nde5 Qc3 Bfe3 Ba3 Bb2 Qe8+
2nr1B2/3Qq2Q/N1bQBrPq/3P1b1K/Rrpkqb1N/1R4N1/7B/n6B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 b4 Ke5 e4 a5 g4 c5 d4+ Kd6 b6 f5 b5 h5 g6 h4 e5+ Kd7 g7 a4 g5 c4 g6 h3 d6 Ke6 b7 Kd5 e6 a3 e7 h2 e8B a2 b6 Nc6 b8B Qe7 b7 Nb4 d7 Ra4 Bg2 Nc2 Ne2 Rb4 d8Q+ Bd7 Re1 h1Q Ba3 Qhh4 Qb6 Bc6 Nd2 Qh1 Rb1 a1Q Rb3 Qb2 Qc7 Na1 Bd7 Qhh4 Rf1 Qe1 Ng3 Q1e4+ Kf2 f3 Bh1 f4 Bc8 Qf7 Qd7+ Bd6 Re1 Ne7 g8Q Qfe6 Qh7 Rd8 Bc7 Qf7 b8N Qg7 Na6 Qc3 Kf1 f2 Nf3 Qce3 Kg2 f1R Kh3 Rf2 Nh4 f3 Qd2 Rf1 Reb1 f2 R1b2 Qe2 Ra2 Qe1 Qf4 Qe3 Kg4 Qe1 Bb7 Nc8 Kh5 Qe3 Nf3 Qee7 Nh4+ Q3e4 Qf6 Rb1 Bb8 f1B Ba8 Rb6 Bb4 Bh3 Ra4 Bf5 Bb7 Na7 Bc8 Rf1 Bc5 Rb4 Ne2 Qef8 Qc7 Bh3 Bg4 Rf4 Qd7 Nc8 Qfe7 Rf6 Bf5 Qg2 Be6+ Ke4 d5 Bf5 Bc7 Bh2 B7d6 Qff7 Bg1 Bf4 Bh2 Qff8 Ng3+ Kd4 Qc7 Qe8 Qed7 Qe4 Bf8 Qee7 Qcd6 Qh6+
1k2bKr1/1q1Q4/1BR2PNQ/1P1N2rn/n2n2NB/1Q1R1pr1/q2BBbb1/8 w - - 0 1 illegal: No proof kernel
RN3rBn/n3b1k1/3R1pB1/R1R1NQ2/3B1rq1/q4P2/3KQN1P/qr3bb1 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 c4 g5 e4 d5 b6 a5 e6 a4 e5 d4 f3 d3 c6 a3 c5 g3 b7 f6 e7 Kf7 e8B+ Kg7 c7 a2 c6 g2 e6 g4 e7 g3 Qe2 Rh5 Be3 Qd7 Na3 Qd6 Kd2 Bh3 c8R Nh6 c7 Nf7 Bd4 Nh8 Bg6 Rf5 e8R Be7 Nc4 Rf4 Ne5 Nc6 b8N Qa3 Red8 Na7 Rd6 Qc5 Rc1 Qa3 Rc5 a1Q Rf8 Be6 c8Q Bc4 Nh3 g1Q Qf5 g2 Rfc8 Ba6 Ra5 Bc4 Rcc5 Ba6 Nbc6 Rf8 Nb8 Bc4 Bb2 Qd4 Nf2 g1B Bh3 Qe4 Bd4 Ba6 Qg5 Bc4 Be6 Qf5 Bg8 Qg4 Qf5 Bb5 Ke3 d2+ Bb3 Bd3 Bg8 Nc6 Ra8 d1R Rca5 Rb1 Kd2 Ba6 Qe1 Na7 Qd1 Bf1 Qe2 Bg2 Nfd3 Bf2 Rc1 Bg1 Rcc5 Bh3 Nf2 Bf1
b2qn3/5rBn/1N1p1R1q/1kP2BQP/4RQ1q/4rQ1b/B2b2R1/1N1K1rB1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e4 f5 h4 a5 c4 g5 b4 f4 h6 a4 e6 g4 b6 a3 e5 d3 b5 a2 c5 f3 e7 g3 h5 g2 h7 Qc7 b7 Qb6 Rh2 Ra3 Ne2 g1R Rg2 Na6 b8Q Nf6 Be3 Rb3 Nf4 Nc7 Nd5 f2+ Kd2 Qc6 b6 Bh6 b7 Rf8 h8B Rf7 Qf3 Nh7 Kd1 d2 Nb6 Qa4 Qa8 Qh4 b8Q Bf4 Bd4 Re3 Bg7 d6 Qae4 Bh6 Qa7 Bb7 Qef4 Ba8 Qa3 Rh1 Qd3 Rg1 Qdf5 Rh1 Q5g5 Rg1 Nc8 Kd7 e8R Rh1 Re6 Ne8 Rf6 Kc7 e6 Rg1 Qe2 Kc6 e7 Rh1 Nb6 Rg1 Nc4 Kb5 Qef3 Rh1 Kc2 Rg1 Bd3 f1B Bf5 Rh1 Nb6 d1Q+ Kb2 Qb3+ Kc1 Qe6 Kd1 Qc8 Q4g3 Qd8 Qg3f4 Ra3 Bg1 Rc3 Nd2 Re3 Rc1 a1Q Nb1 Qe5 Rc4 Qe6 Re4 Rh2 Rg4 Rf2 Rg3 Bh3 Rg2 Rf1+ Kc2 Nc7 e8B+ Ka5 Ba4 Ne8 Bb3 Kb5 Ba2 Rf8 Rf7 Qg6 Rf6 Rf7 Qgg3 Bg5 Kd2 Qh6 Kc2 Rf2+ Kd1 Rf1+ Kd2 Qg6 Q4g4 Ree1+ Kc2 Bd2 Qg5 Re3 Qg3f4 Rf2 Kd1 Qh6 Q3g4 Rff3 Qgg3 Rf2 Qgf3 Rf1+
RbrBqBN1/4R1K1/1P2N2q/1q1nr1B1/2Ppb3/3n2Q1/2Bnk2b/1NR3Q1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 a5 f4 g5 c4 d3 b4 g4 b6 g3 b7 d2 h6 g2 h5 a4 h7 a3 b5 a2 b6 Ne7 h6 Na6 b8Q Qe8 Nf3 g1B Nd4 Nd5 Nc6 Nab4 Bd3 Bb7 Bc2 Nd3 Ne7 Bh2 Qg1 d1Q Bd2 Rg8 h8R Qdh5 h7 Rg5 Be3 Qh6 Ng8+ Kf7 f6 Kg6 f7 Kh5 f5 Bd6 Qc7 Rc8 f8N Bc6 f6 Rf5 Qb7 Bb8 f7 d6 Bg5 Qd7 Qd4 Kg4 Qc7 Ba8 Rc1 Qb5 Ne6 Kg3 Qb2 Kf2 f8B Ke2 Qd4 Bc6 Qg1 Ba8 Nd2 Bc6 Rab1 a1N Rb2 Bb7 Nb1 Nb3 Ra2 Ba8 Ra7 Bc6 Bd8 Rh5 Bg5 Nd2+ Kf5 e4 Qg7 e3 Re7 Nc7+ Qe5 d5 Qeg3 d4+ Qe5 Nc5 Qeg3 Be4+ Ke5 Bg6 Kf6 Nd3 Bh4 Re5 Bg5 Qh3 Kg7 Nd5 Nh6 Bf5 Rg8 Be4 h8B Nc5 Kf7 Qh4 Bhf6 Nd3 Rh8 Qf4 Ng8 Qh4 Rb7 Qh6 Bd8 Ne1 Re7 Nd3 Qh4 Kf3 Qhe1 e2 Qh4 e1Q Qh3+ Ke2 Qhg3 Qh5+ Kg7 Qhe8 Rf7 Qf2 Re7 Qe3 Rh3 Qa6 Qg4+ Bf3 Bf6 Nb2 Qg6 Bh1 Rf3 Qa5 Q6g3 Qab5 Bh4 Qf4 Ra3 Nd3 Ra8 Be4 Bf6 Qh4 Bg5 Qh6+
4nQ2/1rN4n/P3B3/2BNKQ2/3Rb2k/1r2pQ1P/R1bR2qR/bq1r1nB1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 f4+ Kh4 a4 e5 d4 b5 a5 c5 h6 g5 a6 b3 h7 c4 f6 b2 f7 b4 h3 b3 f5 c3 d6 c2 d5 g4 f6 g3 d7 g2 d6 Qb6 d8R Nd7 Ra2 Ra7 Nc3 b1N Nge2 g1Q Nf4 b2 Be3 c1R Bc5 Bb7+ Ncd5 Qg2+ Qf3 Bg7 f8Q Rd1 f7 Ndf6+ Kf5 e4 d7 Qb3 Ke5 Nd2 Rh2 b1B Nc7 Bc2 Nfd5 Qb1 Bc4 Nf1 Bg1 e3 Qc5 Rd4 f8B Rd1 Qa5 Ba8 Bc5 Rb7 Bb3 Bh6 Qb5 Ne8 Qd3 Bg5 Qdf5 Ngf6 Bc4 Rg8 h8Q+ Nh7 Qhf6 Rg7 Qf8 Rb6 Ne7 Rf7 Be6 Bae4 Ned5 Rb8 Rc8 Rb7 d8R Rb3 Rb8 Re7 Rb4 Rg7 Rd4 Be7 Ba7 Ba3 Bc5 Bb2 Nc3 Rd7 Rd2 Rf7 R8d4 Ba1 N3d5 Re7 Na8 Ra7 Nac7 Rab7
5Kn1/b2B3n/P3q1R1/1pN1nbrr/1P1R1bQQ/7q/k1BrB2R/1N3NN1 w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 a5 c4 a4 cxd5 a3 b3 Be6 Bb2 axb2 Rh3 Bd7 Rh1 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 c5 d4 b5 g4 h5 a4 c4 a5 e6 a6 h4 f6 h3 g6 c3 f5 c2 f7 c1B f6 h2 g5 Bd7 d6 Qe7 d5 Bc6 g7 Rh7 d7 Qc5 d8Q Ne7 g8B Bd7 g6 Rh6 g7 Qc8 Kd6 e5 Be2 e4 Bh7 e3 g8B Qc3 Bc2 Bg7 f8N Qe1 Ng6 Rh5 f7 Bf5 f8N Bd4 Nf4 Ba7 N8e6 Nd7 Nc5 Nf6 Be6 Neg8 Ng2 Rg5 Qe7 Rd8+ Bd7 Qh4 Qh7 Qe4 Qh4 Bd2 Bh5 e2 Ne3 e1N Be2 Nf3 Nf1 Ne5 Ra3 Bf4 Ra2 Nh6 Ke7 Qg2 d6 Qh3 Bc6 Rd7+ Kf8 Nhg8 Ra1 Rh7 d7 Rhh5 d8R Qe3 Nbd2 b1R Bd7 Rb2 Ra2 Kc3 b4 Qe4 Ra1 Qc6 Rc1 Qe6 Ra1 Ra2 Rc1 Kb2 Nb1 Ka1 Qd4+ Rb2 Rd1 Ka2 Ra8 Be3 Qdg4 Bf4 Rd4 Bg6 Nf3 Bf5 Rg1 h1Q Rg3 Ne8 Ng1 Nef6 Rg2 Qh3 Rh2 Rb3 Re8 Rd3 Re7 Rd1 Rg7 Rd2 Rg6 Nh7+
6rB/2qb2np/1Bq1N1Qb/4kbN1/P3B3/2RPr3/NR1Kr1R1/1q1B1Q1n w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kd7 f4 Kd6 a4 c5 g6 e5 g7 b5 d3 c4 g5 b3 g6 c3 f6 b4 f7 e4 f5 e3 f6 b2 Be2 b3 Ra2 c2 Nc3 b1Q Bb2 c1R Nf3 Bd7 Rg1 Nc6 Rg2 Nce7 Ng5 Nh6 g8Q Qc7 g7 Ke5 d6 Ng4 Bf3 e2 Kd2 Re8 Qf1 Qc6 Be4 Nf5 Ra3 Re1 Na2+ Nd4 Ba1 b2 Rc3 Bf5 d7 Nf2 d8B Ne6 Ba5 Nh1 Bb6 Qc2+ Ke3 b1B Bb2 Qb3 Kd2 Qbc4 Ba1 Bc2 Bb2 Bd1 Ba1 Bc5 f8N Bg1 Qf7 Rg8 Qg6 Qc7 f7 Q4c6 Bb2 Bb3 Ba1 Bc4 Bb2 Ba6 Ba1 Bc8 Bb2 Bd7 Ba1 Rh8 g8B Ng7 Nfe6 Re7 f8R Be3+ Kc2 Bf4 Bf7 Rg8 Rb8 Bh2 Kd2 Bf4+ Be3 Ree8 Rb2 Re7 Nh3 Bh6 Nhg5 Ree8 Bb6 Nf2 Rc5+ Kd6 Nf4+ Ne6 Rbb5 Rb1 Bd5 Nh1 Bh8 Re7 Rb2 e1Q+ Kc2 Ra1 Rc3 Rd1 Qg7 Rb1 Bh5 Rd1 Qf7 Ng7 Bdf3 Re3 Be4 Ra1 Nfe6 Ke5 Qg6 Qd2+ Kb3 Rae1 Be2 Qc1 Bd1 Qa1 Kc2 Qb1+ Kd2 R1e2+
1Q1NQ1nR/Q1b1NRP1/2R1RNq1/2qr2pK/1P5b/8/B3r2r/nnBbk3 w - - 0 1 illegal: No proof kernel
1Q3K2/n4Qpr/4BPr1/1bqQR1NN/1n1R1q2/N3b3/3Rn1P1/k1bB1r1N w - - 0 1 illegal: No proof kernel
RR2N1RQ/KnrrPN1N/3q1N2/2QB3B/2bq3n/1P1kp2n/1b3q2/1r4B1 w - - 0 1 illegal: No proof kernel
kn2q1Nq/3P3P/N2KR3/bb1R1Br1/1R2QB1q/1pn1n2B/2bQ4/1B4rQ w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 c5 Kf4 Kc7 e4 f5 d4 b5 h4 Kb7 a4 g6 h6 c4 d6 b3 d7 b4 h7 b2 a5 c3 e6 c2 Ke5 b3 e7 g5 e8B g4 h5 g3 d5 g2 d6 f4 h6 f3 a6+ Ka7 Rh4 f2 Nh3 g1Q Bf4 c1N Qd2 Qg6 Ng5 Bb7 Ne6 Bc8 Nc5 Qf7 Bh3 f1B Nc3 b1Q Nd5 Qg6 Ne7 Qa5 d8R Bg4 Bd7 Qa3 Bf5 Nf6 Ng8 Qba2 d7 Bb5 Re8 Bg7 Re6 Qe8 Kd6 Nd5 e5 Ne2 Rd1 Nec3 Bb1 Qb4 Bf5 Kb6 a7 Qa1 Bb1 Qba4 Na6 Bf5 Rg4 Kb7 Rh4 Nc6 Rg4 Rd8 a8B+ Ka7 Bb7 Ne3 Ba8 Nb8 Bae4 Bg6 Bf5 Bf6 Qg2 Bg7 Rd5 Ka8 Qd2 Qe4 Nf6 Rg8 h8Q Rc8 h7 Rc5 Rh4 Rf8 Ng8 Bf6 Qg7 Bd8 Qh6 Ba5 Qh5 Qea4 Qf3 Rf7 Qh1 Rg7 Bh6 Rc4 Bfd3 Qd8 Rf6 Ne2 e6 Rc1 e7 Rg1 e8Q Be4 Qg6 Qe8 Re6 Qf6 Qf5 Nc3 Qe5 R7g3 Qd4 Qh8 Qc4 Bf3 Bdf5 Bd1 Qf4 Qad4 Qff3 Qdf6 Rb4 Qh4 Bf4 Bc2 Qe4 Rg5
2r1rBk1/n2PP3/N3n3/r1QBqN1p/qN2BQ2/R2b1nb1/K2N4/3R1Q1b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 Kd2 h5 Kc2 a5 Kb3 c5 g4 a4+ Ka2 c4 b4 f3 b6 f2 d6 f4 d5 a3 b7 c3 d7 f3 e5 c2 d6 Na6 b8N Qb6 d8N+ Kg7 g6 Nh6 b5 Be7 d7 Bb7 e6 Kg8 g7 Nf7 g5 Ne5 Ndc6 Rh7 Nd2 Bc5 e7 Rh8 Bd3 f1B Nb4 f2 Ngf3 Qg6 b6 Nc6 Nd4 Qd6 Be4 Nc7 N8a6 Qe5 Nf5 Bd3 Qf1 Na7 Rh3 Bc6 b7 Bd6 Rg3 Rc8 b8Q Ne6 Qc7 Ba8 Qc5 Re8 Bb2 c1Q Re3 Qc2 Rd1 Qa4 Bd4 Kh7 Rf3 Rhf8 g8B+ Kh8 g6 Bc6 Qg1 f1N Qe3 Ba8 Qf4 Nh2 Bf7 Rc8 g7+ Kh7 Re3 Rfe8 Rg3 Nf3 Rh3 Neg5 Bfd5 Ne6 Be3 Nh4 Qf1 Kg8 Bh6 Nf3 Qe3 Bc5 Qf4 Bf2 Rg3 Kf7 Rh3 Bg3 g8Q+ Kf6 Rh2 Nfd4 Re2 Qa5 Qh8+ Kf7 Bf3 Be4 Bb7 Qeb5 Qhe5 Kg8 Re3 Bb1+ Ka1 a2 Rc3 Bd3 Bf8 Qa3 Qd6 Qe5 Qc5 Qa5 Kb2 a1R Bbc6 Ra4 Ra3 Qb5 Ka2 Ra5 Bcd5 Bc6 Bb3 Qa4 Bg2 Bf3 Bd5 Bfe4 Bh3 Bh1 Bhg2 Rc6 Bgf3 Rcc8 Bfe4 Nf3
3k1b2/r2p2Nn/2B1R1N1/qb1R2N1/3NPB1q/QQ1P4/1R1r2B1/nrK3nq w - - 0 1 illegal: No possible last move, all moves rejected
Rn3K2/rn1p2b1/kB4bN/1qr1B1R1/Nq1PNR2/1bnQ4/2PQ2Q1/Q3r3 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 Ke2 e5 Ke3 a5 Ke4 g5 Kd5 g4 h4 e4 f4 b4 h6 g3 f6 a4 h5 b3 f7+ Ke7 f5 e3 h7 e2 h6 e1N Nc3 g2 Rh5 b2 Ne4 b1B Rg5 a3 Ne2 g1Q N2c3 Ra6 Na4 Nc6 b8Q Ra7 b7 Nd3 Qf4 Qdb6 b8B Kd8 f6 Bb7 Be5 Bg7 Kd6 Kc8 Qdf3 Qh1 Qg2 Nc5 d3 Qa5 Be3 Qf1 Qf5 Ba8 f8Q+ Kb7 f7 Ka6 Qc8+ Bb7 f8R Nf6 Rf7 Nb8 Ke7 Rd8 h8Q Ba2 h7 Qb4 Qc7 Bb3 Qd6+ Bc6 Rf8 Nb7 Bb6 a2 Qff2 Qc1 Qd2 Qb2 Rf1 a1R Rf4 Qb5 Qa3 Bcd5 d4 Re1 Qa1 Bdc4 Qg8 Rc8 h8N Rc5 Qh7 Bg8 Nf7 Nd5+ Ke8 Qa3 Nh6 Nc3 Ke7 Qab4 Re8 Bf6+ Kf8 Bgf7 Qf5 Bg6 Rd8 Nc6 Ra8 Nb8 Qfh3 Bh8 Qhd3 Bg7+
N3q1r1/1P3Q1n/2p2bRq/1kPNr3/nB2B1K1/RQn1q3/Bb1B4/Q3N2b w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 Ke2 h5 Kf3 d5 b4 Kd7 c4 a5 g4 h3 b6 Kc6 f6 a4 b5+ Kc5 b7 c6 g5 d4 f7 d3 e6 h4 g6 d2 e7 h2 e8N a3 g7 a2 b6 h3 Nc3 Ra6 Bd3 Kb4 Nc7 Rh5 Be4 Nf6 g8B Be6 Na8 Nbd7 b8Q Bg7 f8Q+ Nc5 Qf7 Na4 Nd5+ Kc5 b7 Re5 Qb3 d1N Bd2 Nh7 Qa7+ Qb6 Kf4 Ndc3 Nf3 Bf6 Rhg1 h1Q Ne1 h2 Rg6 Qg2 f3 Qe2 Kg3 h1Q f4 Bh3 f5 Bg2 Kf4 Qe3+ Kg4 Ra5 Qa6 Qhh6 Qa7 Bh1 Qa6 Bg7 f6 Qb5 Qc7 Bh8 f7 Bf6 Qd7 Qb6 Qe6 Qc7 f8B+ Qe7 Qf7 Rb5 Bg7 Qe8 Bf8+ Kd4 Bb4 Ra5 Rb1 a1B c5 Bb2 Qf1 Ra6 Ra1 Ra7 Ra3 Ra5 Nab6 Ra8 Qg1 Rc8 Na8 Rb8 Ng2 Rc8 Qa1 Rd8 Ne1 Rc8 Qc2 Kc4 Qb3+ Kb5 Ndb6 Re6 Qf8 Rc7 Qbd1 Re5 Ba2 Bh4 Nd5 Bf6 Qb3 Rg7 Qf7 Rg8
6b1/1PQ2q1B/1pR1RR1r/B1BNP1Qr/nQN1K3/2B1qnrk/3b4/1n1q4 w - - 0 1 illegal: No proof kernel
1R2q1nq/P2kr2n/1Rr4Q/5p2/1RNNQ1BB/nP4K1/2qR2bB/1bQ1b3 w - - 0 1 illegal: No possible last move, all moves rejected
3NnN1R/6bR/R1b2b2/B2nk1B1/3r1pK1/Pb2r3/NQnRq1P1/1Q1B3b w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kg3 c5 d4 b5 e4 f5 e6+ Kd6 e7 h5 e8R b3 g6 h4+ Kh3 b4 a3 c4 g7 c3 Ne2 b2 Nf4 c2 Ng6 b3 Ra2 Be6 Be2 Qe7 Nc3 b1N Bg5 c1B Rd2 b2 Na2 Nf6 g8R Bg7 Nf8 f4+ Bg4 Rh5 Rh8 Na6 Qf1 Ra7 Ra8 Nc3 Rh7 Bg8 Bd1 Ne8 Kg4 b1B Qe1 h3 e5+ Kc7 e6 Kd6 Qe4 h2 Qc2 Rh3 Qb2 Rd7 Rh8 Nb8 Ra6+ Nc6 Rh7 Re3 Rh8 Qf7 e7 Be4 Qb1 Bb2 Rh7 Nc7 e8Q Qe7 Qb8 Ba1 Q8b2 Ne8 Ra5 Nb4 Ra6+ Kc7 Rh8 Nc2 Rh7 Bd3 Rh8 Bb5 Rh7 Bc6 d6+ Kc8 Rh8 Bb3 d5 Rd8 d7+ Kc7 Rh7 Kd6 Rh8 Ke5 d6 Rb8 d8N Rb4 d7 Rd4 Nde6 Nd5 d8B Bf6 Ba5 Bg7 Nd8 Bf6 Rf1 h1B Rf3 Qb4 Rh7 Qc4 Rfh3 Qe2+ Kh4 Be7 Rg7 Kd6 Q2c1 Rc4 Rf7 Bh8 Qcb2 Rd4 Rg7 Bf6 Rc7 Qd3 Kg4 Ke5 Rg7 Qf1 Rhh7 Qb5 Rg8 Bhg7 Rgh8 Qe2+
3kn3/1QN1R2b/2rrR2Q/b1B1N3/2Pr2P1/1Nbp2KB/2rn1R2/1R1rQ2q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 f4 d5 Kf2 e5 g4 h5 b4 e4 b6 a4 b7 a3 f6 h4 f5 h3 g6 a2 g7 e3+ Kf3 e2 b5 e1B b6 h2 Be3 d3 Bd4 d2 Bc5 d4 Bh3 Nc6 b8N d3 b7 Rh6 Na6 Na5 b8Q Nb3 Qb7 Qd5+ Kf4 Kd8 f7 Rf6 Nc7 Rd6 f6 Bf5 Nf3 Bh7 Ne5 Qc6 Qc1 d1R Nd2 Be7 Rg1 h1R Rb1 a1R Rg2 Bf8 Rf2 R1a6 Kg3 Rh2 Qc3 Qh1 Qc1 Na5 Nb3 Bc3 Qe3 Rc8 Qe1 Rd4 Re2 Rad6 Rf2 Ne7 g8R Nd5 Rg6 Bh6 Re2 Bhd2 Rf2 Nf4 Rh6 Ne6 Rg6 Ng7 f8Q+ Ne8 f7 Ba1 Qh6 Bac3 Re2 Rf2 f8R Rh2 Na1 Nb3 Re6 Ba5 Rf4 Bdc3 Rff2 Nd2 Nb3 Rb6 Na8 Rcc6 Nc7 Ra6 Rf7 Rcd6 Rfe7 Rac6 Rf2 Nf3 Rf1 Rc2 Rf2 Nd2
1bRBRQb1/1k1N1B2/r1r1Q1N1/2bNP1R1/r4n2/n2p2P1/5K2/q1rr2NQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 c4 a5 e4 d5 b4 Kd7 g6 Kc7 c5 f5 e6 h5 e7 d3 e8R h4 g7 h3 g3 d2+ Kf2 h2 b6+ Kb7 b5 d4 Nf3 d3 Qe2 d1R Bg2 a4 Qe1 f4 Ng1 a3 Nc3 f3 Nd5 a2 Bg5 Qf6 Rc1 Ne7 g8N Ng6 Nge7 Nf4 Ng6 Qa1 Bd8 Ra4 e5 Be6 Bh3 Bg8 Be6 Rh6 Bf7 Nc6 Rc4 Nd4 c6+ Kb8 b7 Bd6 Qf1 Nc2 c7+ Ka7 b8N Kb7 b6 Na3 Nd7 Rc1 Ke3 f2 Qd1 f1R Rc2 Ka8 c8Q+ Bb8 b7+ Ka7 Qh5 Rfd1 Kf2 Ra6 Rc5 Rc4 Qc6 Rca4 Qe6 Rc1 Rc8 Rd1 Nf3 Rc1 Rf1 h1R Qh4 Rg1 Qh1 Rac6 Re1 Rca6 Re4 Rgd1 Ng1 Rac6 Nh8 Rf6 Ng6 Rca6 Qeh3 Rfc6 Qe6 Qb1 Rc4 a1B Rd4 Bb2 Re4 Qa1 Rb4 Nh5 Rg4 Nf4 Rg5 Bd4+ Ne3 R6c4 Qed5 Ne2 Be6 Bc7 Qd6 Bdb6 Qf8 Rc6 Bf7 R6a5 b8Q+ Ka6 Qd5 Bc5 Qh1 Nf4 Qb3 Bb8 Qc4+ Kb7 Qe6 Bb4 Nd5 Raa6 Nge7 B4d6 Ng6 Bc5+
k3nQ2/1NBr2rQ/1n2B3/2bp1bP1/BN2PQ2/nK2n1bR/N1n2Q2/3R2q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 g4 f5 b4 h5 c4 d5 Kc2 Kd7 e4 Kc7 g6 Kb7 g7 h4 e6 d3+ Kb3 d2 g5 h3 b6 f4 e7 f3 e8B h2 b5 f2 c5 Nd7 Nc3 Rh7 Nf3 Ngf6 g8Q Rg7 Na2 Ra7 c6+ Ka8 c7 Bc5 Qe1 d1N Bf4 Nc3 Qh7 Nb1 Bh3 f1N Ne5 Ne3 Be6 Na3 Qf2 Nec2 Rad1 Rb7 Nd3 a4+ Kb2 Qe7 Ndb4 Qd6 Bg3 Qf4 Kc3 Qg4 Be5 Qg1 Kb2 Nb8 Bc6 Bd7 c8N Ne8 Nd6 Bc8 Kc3 Nd7 Kb2 Kb8 Bf4 Rc7 b7 Nb6 Be5 Rcd7 Kc3 Nac4 Bf4 a3 Kb3 Ka7 Nc3 a2 Bg3 a1B Nca2 N4a3 Bf4 Kb8 Bg3 Kc7 b8Q+ Kd8 Qa8 Kc7 Nb7+ Be5 Bf4 Nac4 Qa3 Kb8 Qc1 Ka7 Bg3 Bb8 Bc7 N4a3 Qcf4 Ka8 Rd3 Qa1 Rhd1 h1N Rh3 Ng3 Qf8 Nf1 Q8f4 Nbc4 b6 Nfe3 Ba4 Qc1 Bd8 Be5 Bc7 Qa1 Qf8 Bg3 Rb1 Rge7 Nd8 Bh2 Bf7 Rd6 Rg1 Bf5 Be6 Qf1 Rh1 Qg2 Rd1 Rdd7 Bf4 Bg3 b7+ Ka7 Be5 Qg1 Bf4 Rg7 Be5 Kb6 b8Q+ Rb7 Qbd6+ Ka7 Bf4 Rbc7 Nb7 Rcd7 Qe5 Nb6 Qef6 Bg6 Bc7 Ka8 Q6f4 Bf5
Q4RB1/1K1Qb3/2N1b1r1/1pqN2B1/2r2NnP/2r1RBb1/rBnkP1r1/Q7 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 b5 Kd4 f5 a4 g5 h4 b3 h6 g4 a5 b2 d3 f4 d6 Kc6 h7 f3 a6 g3 a7 f2 d7 g2 e6 Qe7 d8Q Nh6 Nh3 g1B Ra3 Rg8 h8B Rg6 Nc3 b1R Bg5 Rc1 Nf4 Ng4 Ncd5 Na6 Bg2 Bh2 Bf3 Rc3 Rf1 Bg3 Qa1 Qc5+ Ke4 Bd7 e7 Nb4 e8B Nc2 d4 Be7 Bf7 Be6 Bg8 Rc4 Re3 Rc3 Rb1 f1R Be5 Rg1 Rf1 Rg2 Qd7+ Kb7 Qb2 Ka6 Qa1+ Ra3 Bg7 Ka5 Be5 Ra2 Bg7 Rc8 a8Q+ Qa7 Rf2 c5 B7f6 c4 Bh8 c3 Rf1 Nh6 Ke5 Bd8 Kd6 Rc4 Rf2 Ng4 Bhf6 Rb4 Kc6 Be7 Bg7 Ka4 Bh8 Kb3 Bhf6 Qa4 Kb7 Qa7+ Kc8 Qa5 Nd3 Ne1 Nb6 Kc2 d5 Bd8 d6 Rg1 Nd5 Rbb2 Be4 Qb4 Kb7 Qc5 Qf7 Rb4 d7 Kd2 Rf5 c2 N3f4 c1R Bf3 Re4 Bb2 Rg2 Qg7 Bf6 d8N Rc3 Nc6 Rec4 Qd7 Be7 Rf8 Nc2
2NNNBkn/8/Q1BQ1bN1/qp1Rr1RP/r2K4/2n2b1b/bb1P4/QnB5 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 c5 Ke3 f5 a4 Kf7 h4 b5 d6 g5 h6 b3 h7 c4 a5 f4+ Kd4 c3 e4 g4 d7 g3 e6+ Kg7 e7 b2 e8Q f3 e5 g2 e6 f2 e7 c2 a6 Nh6 a7 Na6 Na3 b1B Ne2 g1N Nf4 Ba2 Nc4 Qa5 d8N Bb7 Nb6 Nc7 Nc8 Bf3 Qc6 Nd5 Ng6 Nc3 Qd6 Nb1 Bg2 f1B h5 Rg8 Rh3 Nf7 h8B+ Kh7 e8N Be7 Bf6 Nh8 Bg7 Bg5 Bf8 Ne2+ Ke5 Nec3 Kd4 Bh4 Rg3 Rg7 Rg5 Kg8 Rd5 Re7 Bh1 Bh3 Qe1 Rb8 a8Q Re5 Qaa6 Ra8 Bg2 Bb3 Ra4 Ba2 Rc4 Bf6 Rc7 Ra7 Rf7 Bh4 Rf5 Bf6 Rg5 Ra8 Ba3 c1B Qf1 Bb2 Qd1 Ba1 Bc1 Bb2 Qa4 Bc4 Qa1 Ba2 Rc5 Bfg4 Bc6 Bf3 Rd5 Qc7 Qb6 Ra3 Qa7 Qa5 Qa6 Ra4+
nk2b1rr/1NRRr3/6Pr/KPb3p1/q2QBN2/4N2Q/4R2N/B2Bn1br w - - 0 1 illegal: No proof kernel
2bK2BB/8/2P3Rn/b3QNB1/1qbP1r1r/kp1b1N2/nr1b3N/1Q1BQR2 w - - 0 1 illegal: No possible last move
1k1nR1nb/N6n/1PP2Nr1/4p1n1/q1bB2QB/3n2QR/r1B1BrRK/4Q3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 b4 h5 f4 d5 Kf2 Kd7 Kg3 Kc7 g6 h4+ Kh2 h3 g4 a4 g5 a3 c5 a2 f6 d3 c6 e6 f7 d4 f5 d2 f6 d3 b6+ Kd6 b5 Qc7 g7 Nd7 b7 Rh6 b8Q Rg6 Ne2 Ba6 Qe1 d1R Ng3 d2 Bb2 e5 Nc3 Rc1 Be2 d1N Nh5 Nf2 Qc8 Ne4 Rg1 Ra7 Rg2 Rc2 Rc1 Be7 f8B a1N f7 Qa5 Nf6 Nb3 Rd1+ Nd4 Rd3 Qa4 b6 Bc4 Rf3 Ne6 Re3 Nd8 Nb5+ Ke6 Bd4 Ra8 Na7 Kd6 Nh5 Ndf6 Qg4 Nh7 Nf6 Rb2 Bd1 Rf2 Bc2 Rh6 g6 Neg5 Qg3 Ke6 Nh5 Bf6 Be7 Qb3 f8R Qa4 Kh1 h2 Re8 Nf3 Qh4 Nfg5 Rh3 Qb3 Qg3 Qb4 Nc8 Ra2 Na7 Qa4 Bf8+ Ne7 g8B+ Kd6 Bf7 Bh8 g7 Rhf6 Bd5 Rg6 Bf3 Ke6 Nf6 Kf7 Be2 Ng8 Be7 Ke6 Ba3+ Kf7 Rf8+ Ke6 Bc1 Ke7 Re8+ Kd6 Qb3 Nge6 Bed3 Nh6 g8Q Rg4 Qg7 Ng8 Rf8 Nf7 Qg5 Ke7 Qa5 Rg3 Qh5 Rg6 Bf4 Neg5 Qg4 Kd6 Bg3 Ke7 Ne8 Kd8 Be2 Ne6 Bh4+ Nfg5 Nb5 Kc8 Na7+ Kb8 Nf6+ Nd8 Re8 Ne7 Qbg3 Ng8 Rg1 Rf1 Kg2 h1N Qae1 Nf2 Kh2 Nd3 Rg2 Rf2
2B2K1B/1RNb3q/Qp1N4/1R2BP1b/1P3RNr/n4rnk/2r1n3/2r2RQr w - - 0 1 illegal: No extended proof kernel
5Nq1/1R3Qnr/P1RbRBb1/2P1R3/Q1n1B1bn/1p2kB2/K2n4/n2rN2Q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 Kf6 c4 Ke5 Kc2 Ke4 Kb2 g5 h4 e5 f4 b5 a5 d5 h6 d4 c6 b3 h5 d3 c7 g4 h7 g3 h6 g2 c5 d2 a6 b4 f6 Kd4 f5 e4 f7 e3 f6 e2 Rh5 e1N Bd3 Bg4 c8B Qe8 Be4 Nd7 Re5 Qe7 Na3 Qd6 Nc4 Qe6 Bcb7 Bd6 f8R Ne7 f7 Ng6 Nb6 Rc8 Nf3+ Ke3 Rb1 Rc6 Rb8 g1N f8Q Nh4 Qf7 Nc2 Ne1 Nf8 Nd7 Ngf3 Ba8 Rb6 Rb7 Na1 Qc2 Qc4 Qd1 Ne6 Nf8 Ng7 Re6 Rg8 h8R Ne5 Rh7 Rh8 Rc7 Bf5 Rc6 Bg6 Bf3 Rb8 Qc2 Rd8 Be4 Kd4 Bb7 d1B Bg5 Be2 Bf6 Bg4 Rd1+ Ke3 Rd5 Rd7 Kb1 b2 Qa4 Qb3 Ba8 Nc4 Rde5 Qd1+ Ka2 b1N Bb7 Qd5 Ba8 Ne8 Rg7 Nbd2 h7 Rd8 Qg8 Rd7 Rge7 Ng7 Qf7 Rg8 h8Q Rd8 Qh5 Rh8 Rb7 Rh7 Qe8 Ng2 Qh1 Nh4 Ree7 Qg8 R7e6 Be7 Qf7 Rd3 Rd7 Bd6 Rb7 Nf1 Qh2 Rd1 Qh1 Nfd2 Bf3+ Ne4 Rb8 B4h5 Rc7 Bg4 Bc6 Kf2 Rbb7 Ned2 Bce4 Ke3 Rc6 b3+
R3rb2/r1r2p1N/B2rNPK1/1Q5P/Q1RN1Bbk/B3Nn2/rn1Q4/1n2q3 w - - 0 1 illegal: Other
Q2Q1Rn1/4P1R1/1rbR2R1/NNQn2BP/1b1r4/1pr4r/1kqB2K1/rB4n1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 e4 g5 d4 c5 h4 f5 a4 b5 e6+ Kd6 a5 f4 e7 g4 e8R g3+ Kg2 b3 h6 c4 h7 c3 e5+ Kc7 e6 Kd6 h5 c2 e7 b4 a6 b2 a7 Nd7 Nc3 b1R Bd2 c1R Qc2 Bg7 Ra6+ Nb6 Nge2 Bd7 Rf8 Qc8 Rg1 Bc6 Qf5 Rb8 a8Q b3 Qc2 Ra1 Nb5+ Kd7 Qc5 f3+ Kh3 f2 d6 Ke6 d5+ Ke5+ d7 g2 d6+ Ke4 Ned4 Nd5 Bd3+ Ke5 Kh2 f1R d8R Rc3 d7 Rb6 Bb1 Rff3 Bg5 Bf6 Bd2 Bh4 Bg5 Be1 Bd2 Bb7 Bg5 Rfd3 Nc6+ Ke4 Na5 Bc6 Rh1 g1N Kg2 Ke5 Rh4 Rd4 Rg4 Rh3 Rg3 Bb4 Bd2 Nf6 Rg7 Rg8 h8B Qc7 Rg6 Rg7 Rde8 Ng8 d8Q Qc8 Rf7 Qf5 Ref8 Qc2 Ra7 Rc3 Rd7 Ke4 Rd6 Kd3 Rf1 Rf7 Bf6 Rg7 Bg5 Rf7 Rf2 Rf3 Rf7 Re3 Rfg7 Rh3 Ba2 Qc1 Rf4 Kc2 Bb1+ Kb2 Rf8 Qc2
r1b2b1B/R1nP1n2/2nR1Pkn/1rBQ2b1/2nR4/N2qp3/2B1NKQ1/3Q2B1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 d4 h5 g4 a5 f6 e5 f5 a4 g5 c4 b6 a3 g6+ Ke8 b7 e4 d6 h3 g7 Kf7 b5 a2 d7 h2 b6 c3 d5 c2 d6 h4 Bd3 h3 Be3 c1B Ne2 Nh6 Bc2 Na6 b8R Nc7 Bg1 Bg5 b7 Ra5 Kf1 Rb5 Kf2 Rg8 Na3 Rh8 Rc1 a1N Ra8 Nb3 b8B Na5 Ra7 Nc4 Ra1 Ng8 Rb1 Ne7 Rb4 Nc6 Rba4 Kg8 f7+ Kh7 f6 Kg6 Qd5 Qe7 d8Q Qd7 Ke1 Rg8 Bc5 Rh8 Kf2 Rg8 Rd1 h1N+ Kf1 Ng3+ Kf2 h2 R4a6 Bf4 Rd4 Bg5 Rb6 Nf5 Rba6 Be7 f8B Nh6 Rb6 Rh8 Rba6 Nf7 g8Q+ Kh5 Bh6 Bf8 Bg7 Kg6 Rb6 Qh3 Qd7 Qd3 Qg4 Rb1 d7 Rb3 Qg1 Rb5 Qd1 h1N+ Kf1 Nb4 Rd6 Nc6 Kg2 Ng3 Kf2 Na8 Bc7 Nf5 Ba5 Nc7 Bd2 Rh5 Be3 N5h6 Bh8+ Bg7 Qe8 Bf8 Qee5 Rb8 Qg3 Ra8 Qg2 Rh1 Qd2 Rb1 Qd1 Rbb8 Bf4 Rb7 Bh2 Rb5 Bg1 e3+
1n4kb/1q1pB2N/1b5R/2n1P1b1/b2B3R/KNR3RB/2P1nr2/1bQrN1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 b4 g5 h4 f5 e4 Kf7 b6 a4 h6 a3 h7 f4 h5 f3 e6+ Kg7 h6+ Kg6 e7 Kf7 e8N a2 b7 f2 b5 d3 Kc3 g4 Kb3 d2 b6 g3 Bh3 f1B Nf3 g2 Ba3 g1B Qc1 d1N Be7 Nc3 Ne1 Nf6 Nd2 Bb5 Rh2 Rg8 h8R Ba4+ Ka3 Qc7 h7 Bh6 Nb3 Rg2 Rg8 Ne2 h8R Bf2 Rg3 Bg5 Rh4 Kg8 Rb1 a1B Rc3 Nc6 b8B Qb7 Be5 Nb8 Bd4 Ra5 Rh1 Rd5 Rg1 Rh2 Rgg3 Be3 Rb2 Rf2 Rh6 Nh5 Ra2 Nhf4 Rh4 Ne6 Nf6+ Kf7 Rh6 Nc5 Nh7 Kg8 Rb2 Qc7 Rb1 Ba6 b7 Bc4 Rb2 Nba6 b8Q+ Qc8 Nf8 Qb7 Qa7 Nb8 Nh7 Rd6 Bdf6 Rd1 Bd4 Bf4 Rb1 Be5 Rb2 Bh8 e5 Be6 Nd2 Ba2 Rb4 Bb1 Nb3 Qa6 Qb7 Qb6 Qg2 Qc7 Qg1 Qb7 Rce3 Bc3 Rc4 Ba5 Rcc3 Rf4 Re4 Rf2 Reh4 Bb6
6n1/1PB3QP/n2Q2qB/b2N2n1/1R1rB1Nk/1n1N2r1/R1QB1p1K/1b3rn1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kg2 Kf6 h4 c5 e4 g5 b4 a5 d4 f3+ Kh2 c4 d6 c3 h6 f2 h5 g4 d7 a4 b6 c2 b7 a3 h7 a2 e5+ Kf5 h6 f6 d5 Na6 b8B Ra7 d6 Qb6 d8B Re7 d7 Rg7 e6 Kg6 e7 Kh5 e8N f5 b5 f4 Bd3 f1R Nh3 f3 Nf6+ Kh4 Bbf4 f2 Nc3 Ne7 Bcd2 c1N Qc2 Nb3 Ncd5 Ng8 Bdc7 Nbc5 d8Q Ne6 Qd6 Ng5 Be4 Bf5 Rb1 a1N Rb4 Qc6 b6 Nb3 b7 Qe8 Bfe3 Qg6 Nhf4 Be7 Nd3 Bd8 Bb8 Ba5 Bc7 Ne7 Rg1 Rd8 h8Q Ng8 h7 g3+ Kg2 Nc1 Ng4 Nb3 Kh1 g2+ Kh2 Rd1 Re1 g1N Re2 Rf1 Bf4 Re7 Qg7 Re5 Bh1 Re3 Be4 Rg3 Re1 N5h3 Bh6 Ng5 Ra1 Re8 Bg2 Re4 Ra2 Rd4 Ngf6 Bg4 Be4 Bf3 Ng4 Bd1 Qcc6 Bc2 Qc3 Bb1 Qb2 Rc4 Qc2 Rd4
1B1N3N/1pK2r2/1P1Q1QrN/2Bnb1b1/2Q1r1qP/3rNR2/1Rbn4/2r3Bk w - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 f5 exf5 a6 b4 h4 b5 h3 b6 Rh6 Bb5+ axb5 gxh3 Rd6 h4 Rh6 h5 Rh8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 c5 a4 g5 f4 e6 h6 b4 h7 c4 a5 c3 d6 c2 a6 b3 d7 b2 a7 g4 d5 g3 d6 g2 f6 Bh6 f5 Be3 f7 Nh6 f8B Rg8 h8N Rg6 f6 Bg5 f7 Na6 Ra2 Ng8 Na3 b1R Bf4 Nc5 Nf3+ Kh3 Nh4 g1B Rb2 Ne4 Nf5 Kg2 h4 Bh2 Rf1 Bg3 Bg7 Ne7 Nc4 Bh2 Qd4 Rd1 Nh6 Rd2 Qc3 c1R Qa3 Qc7 Rf3 Kh1 f8Q Rb8 a8Q Rd4 Q8a4 Nd2 Bg3 Rf4 Qc5 Ra8 Qc2 Ra3 Bf2 Rc3 Bg1 Rb3 d8B Qd7 Qd5 Qa4 d7 Rf5+ Kd4 e5+ Kc5 e4 B7d4 e3 Bc7 e2 d8N e1R Bb8 Be5 Qg7 Rf7 Qf6 Bf5 Bdf2 Bd4+ Kd6 Ra3 Qc3 Bc2 Kc7 Be5+ Qdd6 Re2 Qb4 Rd3 Bc5 Ree1 Ne3 Re2 Nf1 Ree3 Qc3 Qg4 Qc4 Re4 Ne3 Nd5#
4R1NK/b6n/rq2RNnQ/3rb3/1Qn4P/Np4BB/QrQ2P1b/1B3bk1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 a4 g5 h4 b3 a5 b2 f6 g4 h6 b4 h7 b3 f7 g3 a6 g2 d6 Bh3 d7 Nf6 a7 Bg7 Nf3 g1B Na3 b1R f8Q Rb2 Ng5 c6 d3 Bh2+ Bf4 Qb6 d8N Bg2 Ndf7 Nbd7+ Kf5 Kd4 Kg6 e5 Bg3 c5 Qc2 c4 Qb4 e4 Re1 e3 Ne4 e2 Nh6 Rhd8 h8Q Nh7+ Nf6 Ndf8+ Kf7 Rd6 Nhg8 Ng6 Rg1 Rad8 a8B Rd5 Bc6 Ra8 Bd7 Raa5 Bf5 Bh3 Bg2 Ra6 Bge4 Bf1 Bh3 Bf8 Rh1 Bd6 Kg7 Be5 Rg1 Nhf8 Qh6 Nh7 Ra1 e1B Bef5 Bc3 Re1 Bb8 Re8 Ba7 Rh1 Bd2 Re6 Bf4 Be4 Be5 Re8 Be2 Re1 Bf1 Bef5 Bf4 R1e6 Be5 Qe1 c3 Qa1 Qb5 Qa2 Qb6 Be4 Kc5 d4+ Kb4 Qe2 c2 Bd3 c1N Bb1 Nd3 Qc2 Rd6 d5 Rd8 Qd1 Kc3 d6 Kd4 d7 Kc3 Qhh5 Kd4 Qde2 Kc3 Qe4 Kd2 Qh6+ Kd1 Qd4 Ke2 Qb4 Kf3 Bg4+ Kg2 Bf5 Rc8 d8Q Kg1 Bh3 Rc5 Qc8 Rd5 Qcc1 Bc3 Qc2 Nde5 Qb5 Nc4 Qb4 Nf4 Kh8 Bd4 Qg7 Be5 Qh6 Ng6+
2k1n3/nn1Rb1Nn/2B1Q3/R5r1/P1NN2rb/3qPb1B/1Q1r2pB/B2R2K1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 d4 c5 a4 b5 h4 f5 h6 g5 d6 c4 h5 b3 h7 b4 d5 g4 h6 g3+ Kg2 c3 Rh4 b2 Bf4 b3 Nd2 b1N Rg4 c2 Qe1 c1B Be3 f4 Qf2 b2 Nc4 Nc3 Rg5 b1R Nf3 Nf6 Nd4 f3+ Kg1 Rg8 h8Q Nce4 h7 Bb7 e6+ Kc8 e7 Rb2 e8B Nc5 Qe1 Ra5 Bc6 Be7 Bf4 Ne8 Bh3+ Qd7 Rf5 g2 Bh2 Bcg5 Rd1 Rd2 Qf6 Rb5 h8B Bh4 e3 Ra5 Qe2 Rg4 Qe6 Ba8 Rh5 Nb7 Bf6 Rd3 Qb2 Rd2 Qg8 Qf5 Qg6 Qd3 d7+ Kd8 Re5 Kc7 d8N Kc8 d6 Rb5 Bd5 Nc6 N8e6 Na7 Bc6 Rd5 Rh5 Ra5 Ng7 Rg5 d7+ Kd8 Bb8 f2+ Kh2 f1N+ Kg1 Ng3 Qf5 Rf4 Qe6 Rfg4 Bf4 Ne4 Bh2 Rc5 Rd5 Ng5 Re5 Kc7 d8R Nh7 Rd7+ Kc8 Rh5 Rf5 Bfe5 Rfg5 Bf6 Rg6 Ra5 R6g5 Nc2 Bc5 Bf3 Qg6 Qb3 Qd3 Ba1 Be7 Nd4 Nbd6 Qb2 Be4 Qb1 Nb7 Qb2 Bg6 Bd5 Be4 Bc6 Bf3
nQ6/b2nQQBR/1q2N1nr/1R1p1N1n/N3B2r/2P4b/r5bP/B1BK2k1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 f4 Kf6 b6 e5 b5 g5 c3 a5 b7 d5 b6 d3 h6 a4 h7 a3 Qc2 d2+ Kd1 a2 Bc4 e4 Qd3 g4 Qe2 e3 Qf1 g3 Ne2 g2 Bd3 g1R Na3 Bc5 Nd4 Nd7 b8Q Rg4 b7 Qb6 Qc7 Rh4 b8Q Ne7 Be4 Ng6 Nc4 Ra5 Rb1 a1N Rb5 Ra2 Nb2 Nb3 Rg1 Na5 Na4 Nc4 Rg3 Rh6 Rh3 Rh4 Bb2 Rh6 Ba1 Rh4 Ke2 d1B+ Ke1 e2 Qd6+ Kg7 f6+ Kh6 f7 Kh5 f8B Kg4 f5 Bc2 f6 Rh6 Bg2 Be4 f7 Bf3 Bh1 Bg2 Nf5 Bg1 Qe7 Be3 Rf3 Bg1 Rf4+ Kh3 Bg7 Bc5 f8N Rh4 Bd4 Rh6 Be3 Rh4 Kf2 e1N+ Nb2 Qc6 Ke2 Ndb6 Nd4 Na8 Ra5 Nd3 Qbc7 Nce5 Kd1 Ba7 Na4 Qb6 Rf7 Ndf4 Rb5 Nh5 Bc1 Kg4 Qb8 Be4 Bg2 Bcf5 Nfe6 Nd7 Bh1 Ndf6 Qff4+ Kh3 Rg7 Nd7 Bf3 Bg4 Qff7 Bd3 Nf5 Bf1 Be2 Kg2 Bf3+ Kf2 Qef6 Kg1 Q6e7 Rg8 h8B Bgh3 Be4 Bfg2 Qb4 Ne7 Rh7 Rg6 Bg7 Rh6 Qa3 Ng6 Qb4 Nhf6 Qbe7 Nh5
BQN3b1/r1r1R1b1/K1b3RQ/2p2r1P/Q2PbBRq/3N1nn1/B2nk2B/8 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 Ke2 Ke5 Kd3 g5 Kc4 c5 b4 f5 b6 a5 Kb5 Kd4 d6 a4 b7 a3 d7 a2 h6 f3 h5 g4 h7 g3 e5 f4 e6 g2 e7 f2 e8B f3 Ne2+ Kd3 Rh4 g1N Na3 Bg7 Bg2 f1B Rg4 f2 Qa4 Ne7 Bf7 Nf3 Nc4 Nbc6 b8B Ra7 Nb6 Rf8 h8Q Nf5 Qh6 Rb7 Bh2 Ng3 Ka6 Ncd4 b5 Qh4 d8R Bd7 Nc8 Nb3 Re8 Bc6 b6 Be4 Bd5 Rf5 Re7 Rc7 Bh1 Bg2 b7 f1B b8Q Rb7 Rb1 a1R Bg8 Ra2 Ra1 Rc7 Bf7 Rb2 Nf4+ Kc2+ Nd3 Kd1 Ra2 Ke2 Rg6 Rb1 Rc2 Rb2 Rc4 Rb1 Be6 Bc6 Rcg4 Be4 Ne1 Rb2 d4 Nbd2 Ba2 Rbb7 Qc6 Kf2+ Qb5 Bc4 Nd3+ Ke2 Rd6 Kf1 Rdg6 Bg8 Qa4 Ke2 Nd6 Ne5 Nc8 Bgf3 Bg2 Bc6 Bh1 Bfe4 Bg2 Nef3 Bh1 Ndf1 Bf4 N1d2 R4g5 Rb5 Qa3 Bd7 Nb2 Ne1 Be5 Bc2 Ba8 Nef3 Bf4+ Be4 Qa4 Bc6 Rg4 Rbb7 Nd3 Ra7+
4Q2r/B1b1rn2/1B2BR1p/1QQr1K2/PRb5/Q1b1P1k1/N4n1b/n1q1NR2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 Kd7 Kg3 Ke6 Kg4 c5 a4 b5 d4 f5+ Kf4 b4 g4 b3 g6 b2 a6 c3 a7 c4 g7 c2 g5 c3 g6 h6 Rh2 Nc6 Rf2 Nf6 g8R Ba6 g7 Qc7 Be3 c1B Nf3 c2 Nc3 b1N Bh3 Rd8 a8Q Ng4 Qd3 Bb4 Qb5 Nd2 Na2 Rd5 Rb8 Bc3 Ne1 Nb3 Qa7 Nd8 g8Q+ Nf7 Qf8 B1b2 Qa3 c1B Rf3 Nf2 Q7c5 Ba5 Rb1 Bbc3 Rf8 Na1 Rb4 Qc6 Bg4 Bc7 Bh3 Rd7 Bg4 Re7 d5+ Kd7 d6 Ke6 d7 B1b2 Qb7 Bc4 d8B Bc1 Qbb5 B1b2 Bd4 Bc1+ Kg3 Bf4+ Kh4 Bh2 e3 Nd3 Rf1 Nf2 Kh5 Qh1 Kg6 Qc6 Bf3 f4 Bd1 f3 Bb3 Bd6 Bb6 Bc7 Kg7 Kf5 e6+ Kg4 Kg6 Kg3 Kf5 Nh3 Ba7 f2 Bb6 Rd7 e7 Qh1 e8Q Re7 Ng2 Qg1 Rb1 Qc1 Ne1 Bf1 Be6 Bc4 R1b2 f1R+ Rf2 Rg1 Rf1 Rg2 Ba7 Rd2 Bb6 Nf2 Ba7 Nd8 Rf6 Nf7 Qd5 Rd3 Bdb6 Rd1 Qdc5 Rd5+
RB4kr/1bQ2bBN/4rP2/2q2R2/b3Nb2/K3Np1n/P1R2nQ1/1BRn1r2 w - - 0 1 illegal: No proof kernel
1rrBr2n/1N2nKNn/B1p1PB2/2P1R2b/Q6B/r1b1R3/2bQ1N2/k2q2R1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 Ke2 Kf7 Kd3 d5 Kd4 h5 b4 a5 c4 h3 f4 h4 g4 a4 g5 a3 c5 h2 f6 Ke6 f7 a2 b6 c6 f5+ Ke7 b7 h3 b5 Nh6 f6+ Ke6 b6 Ra7 g6 Qd6 g7 Nd7 b8R Ng8 b7 Ra3 Bg5 Ne7 g8Q Bg7 Qd8 Ng6 Ba6 Ndf8 Bh4 Nh7 Nd2 Re8 f8N+ Kf5 Rb1 a1R Rb3 Rb1 f7 Kf4 Nc4 Bf5 Rc8 Bc2 b8B Bh8 Rc3 Rbb3 Ba7 Rb8 Ne6+ Kf5 f8B Bg7 Ke3 d4+ Kf3 d3 Bb6 d2 Bfe7 Bh8 Na5 Qd7 Kg3 Ke4 Ng7 Kd4 Nb7 Qd5 Qa1 d1B Bef6 Bh5 Rc7 Qd6 Re7 Qd7 Qa2 Rc8 Re3 Qd5 Bd3 Kc3 Ba6+ Qd3 Qc4+ Kb2 Qa4 Qd1 Qd2 Ka1 Bd8 Rb8 Nf3 Rc8 Rg1 h1R Ne1 h2 Nd3 Rb8 Nf2 Rc8 Rf1 Rg1+ Kh3 h1N Re6 Rg4 Rg1 Ng3 Re7 Nf5 Re6 Rf4 Re7 Be2 Re6 Rf3+ Kg4 Nfe7 Kh5 Rb8 Rd6 Rc8 Rd5 Rf4+ Kh6 Rb4 e6+ Rb2 Rde5 Bh5 Na5 Rbb8 Nb7 Kb2 Bf1 Kb1 Ba6 Ka1 Nf5 Qe1 Bg7 Qd1 R5e4+ Kb1 Bb2 Bf6 Be5 Bg5+ Kg7 Ka2 Kf7 Bf6 Ng7 Kb1 Bd6 Bd4 Be5 Bc3 Bef6 Ka1 Re5 Nh8#
5R1B/r3q2Q/1P2R1Qb/5n1n/n1Qp4/1N1Kr1nN/Bk1Pr1Q1/1N1B1b1b w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ke2 Kf7 f4 Kf6 g4 e5 c4 h5 b6 d5 c6 a5 c5 h3 c7 e4 c6 h2 Nh3 e3 Qc2 a4 Kd3 a3 Be2 a2 Rf1 h1B Bd1 h4 g5+ Ke7 f6+ Kd6 f7 e2 g6 e1R g7 Na6 f5 Qe7 f6 Ra7 Bb2 Re2 Bc3 Kc5 Rf4 Bg4 c8Q Rh6 Bd4+ Kb4 c7 Rh5 Qd7 Rhe5 c8Q Bgf3 Ng5 Bfg2 Nh3 Bf1 Qf5 R5e4 Qg6 Re5 Q2c6 Re6 Be5+ d4 Qcg2 Nc5+ Kc2 Nh6 g8B Nd7 Kd3 Nf5 Qc2 Bg7 f8N Bh6 f7 Nf6 Nd7 Nh5 Bh8 R6e5 f8Q R5e4 Nf2 h3 Nc5 h2 Qfg7 Re6 Nb3 Ka4 Nc3+ Ka3 Q7h7 R6e5 Rc1 a1N Nh3 R5e4 Nd5 Re6 Qc4 Kb2 Nc3 R6e4 Nb1 Re5 Na5 Nb3 Bf7 Nd6 Rf6 Nf5 Re6 R5e4 Qd5 Re5 Rc8 R5e4 Rf8 R4e3+ Kc4 Nc5 Nb3 Na4 Qc5 Re5 Kd3 R5e4 Qd5 R4e3+ Kc4 Qd7 Nc1 Qd8 Rc6 Qe7 Q2g5 Bhg2 Rd6 Re5 Kd3 h1N Qc6 Bf3 Ba2 Ra6 Qc4 Ra7 Re6 Bc6 Qg1 N1g3 Nb3 Bh1 Qg2 R5e3+
2KQRr1n/R3Nn1P/5Bq1/NnRP1Q2/b1B3r1/2b1p3/1N1k3B/N3nbr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 h4 g5 a4 e5+ d6 b5 d4+ Ke4 f4 g4 a5 g3 a6 c6 f6 b3 f7 b2 h6 g2 h5 b4 h7 b3 h6 Qd7 Kb6 c5 f5 c4 f6 c3 a7 c2 Rh5 Qb5+ Kc7 Nc6 d7 Qe2 d8N Qd3 Ne2 g1R Nb7 Nge7 Na3 b1N Bf4 c1N Nc2 b2 Na5 Nd8 Bh2 Ng6 Nf4 Rg8 h8B Bd7 h7 Bg7 f8Q Ba4 f7 Na3 Qg4 b1B Qf5+ Kf3 Qd6 e4 f8N Nf7 Qd8 Rb8 a8R e3 Rg5 Rb4 Kc8 Nb5 Rb8 Be5 Bf6 Ngh8 N8g6 Rf8 Ne7 Qe4 Ra3 Nd3 Na1 Ne1 Bc4 Bd3 Ra2 Bf1 Nd3+ Bf4 Ra3 Ke2 Nb2+ Kd2 Ra8 Be5 Ra7 Bg2 d5 Bc3 Rg8 Qg4 Rc7 Qg6 Rc5 Bf1 Ra2 Ng5 Ra3 Rf7 Re8 Rf8 Ra2 Ngf7 Nac6 Bb3 Ra7 Bc2 Na5 Ba4 Bb3 Rf4 Bc4 Rfg4
QBr2b2/1rB2bp1/Q7/2NnRN1r/P1RR3P/n5qB/k1b2n1Q/2r2K1B w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 e4 b5 a4 c5 h6 f5 h7 f4 e6+ Kd6 e7 f3 e8B b3 e5+ Ke7 d6+ Ke6 d7 Kd5 e6 c4 e7 b4 Bf4 b2 Qe2 b3 Bh3 c3 Kf1 c2 Qa6 c1N Nd2 b1B Ne4 b2 Ne2 f2 N2g3 Nd3 Nf5 Qc7 d8Q+ Nd7 Nc5 Bc2 Rc1 b1R Rg1 Qd6 Rg4 Ngf6 Bg6 Qb8 e8R Rb7 Bd6 Nb6 Re5+ Kc6 Rge4 Be6 Bh5 Bg8 Bf3 Bf7 Bh1 Nd5 Qh4 Qc7 Qh5 Rc8 Rd1 Qe7 Bb8 Qg5 Rc1 Qg3 Qe2 Bb1 Rc4 Bc2 Qh5 Nc3 Qe2 Nb1 Qa8 Nd5 Rg4 Rg8 h8Q Na3 Qh7 Rh8 Rge4 N5f4 d5+ Kb6 d6 Nd5 Qh4 Rh5 d7 Kc6 Red4 Kb6 Qe7 Kc6 Qd2 Kb6 d8B+ Kc6 Ke2 f1R Bdc7 Rc1 Qeg5 Nf2 Qh6+ Qg6 Bf1 Qd6 h4 Qg6 Bh3 Qd6 Qde3 Qg6 Qhf4 Qg3 Qd3 Qh2 Ne4+ Bc5 Rb4 Bf8 Qfg3 Qg1 Qh2 Qg2 Neg3 Kc5 Qda6 Bd1+ Ke1 Qf3 Kf1 Bc2+ Rd1 Qc3 Rf4 Qf3 Ne4+ Kb4 Nc5+ Kc3 Rc4+ Kb2 Ree1 Qg3 Rdd4 Nd1 Re3 Ka2 Re5 Nf2+
4NBn1/1R3PQK/kN1pQP2/Nb6/R2rR3/2q1rBbr/2b1Bn1b/1R2n3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 e5 Ke4 g5 c4 g4 b4 d6 f4 Kd7 h4 Kc7 h6 Kb7 b6 d3 h7 d2 c5 a4 f6 a3 f7 g3 h5 g2 f5 a2 f6 Ra6 b5 Qe8 h6 Ne7 c6+ Ka8 b7+ Ka7 c7 Nf5 Nc3 Ng7 Nd5 Ra5 Qe2 d1B Nb6 Bg4 c8B Bd7 Nh3 g1R Nf4 Nh5 Ne6 Qd8 Kf5 Nc6 b8N e4 Bb7 Ng3+ Kg6 e3 Ng7 Ra4 Ne8 Qc7 Rh4 Rc4 Re4 Rd4 Rb1 a1B Qg4 e2 Qe6 e1N Be2 Bc2 Bg5 Nd8 Bd5 Qc3 Nc6+ Kb7 Na5+ Ka7 Ba8 Nc6 Bd2 Rh1 Be3 Bg7 Bg5 Rg8 h8R Rh3 h7 Nh1 Bh6 Nf2 Bb7 Rf8 Rg8 Bb2 h8Q Ne7+ Kh7 Bc1 Bc6 Bf4 Ba8 Rdd3 Ra4 Bh2 Baf3 Bg3 Nbc4 Bh2 b6+ Ka6 b7 Bb5 Nb6 Rd2+ Re4 Rd4 b8R Bg3 Rb7 Bh2 Bg2 Re3 Bgf3 Bg3 Bg5 Bh6 Qg7 Bh2 Bf4 Bg5 Rh8 Bh4 Bh6 Rg8 Qg2 B4g3 Bf8 Rg4 Rg8 Rf4 Rg4 Ng8 Qg1 Rdd3 Ra4 Rfd4 Re4 Be5 Qg7 Bef4 Bg4 Rh3+ Bh5 Rde3 Bf3 Bfg3 Be2 Nh6 Bhf3 Ng8+
R4nnR/1QnP3N/1BN2n2/3br2r/3p2r1/1q2BRQ1/bkP2b2/4QBKB w - - 0 1 illegal: No possible last move
3Q1Qr1/QN1P2RB/1nbrR3/QP4B1/3bq2p/5rBk/nR1r1n1b/4NK2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 a5 b4 h5 d4 c5 f6 e5 b6 h3 b5 h4 g5 a4 d6 Ke6 f7 Kf5 b7 c4 d5 a3 d7 a2 d6 h2 g6 e4 g7 e3 Na3 e2 Nf3 Kg4 f5 c3 f6 c2 Nc4 Ra6 Na5 Qe8 d8Q Nd7 b8B Qe4 Bg5 c1N Qa4 Nb6 d7 Nh6 g8R Bd6 f8Q Bb7 f7 Bc6 Rb1 a1B Rb2 Na2 Rg7 Rg8 Nb7 Bc7 Kf2 e1R Qa5 Rd1 Bd3 Kh3 Qfa3 Rd2+ Kf1 Ng4 f8Q Nf2 Ne1 Be5 Rg1 h1R Rg6 Rh2 Re6 Rg2 Bd6 Bh2 Bb1+ Rd3 Bg3 Rf3 Qac5 Nd5 Qa7 Nb6 Re2 Bd4 Rb2 Qe3 Bh7 Qe4 Qab4 Raa3 Qd2 Rad3 Qda5 Rd2 Bb8 Rg4 Bg3 Rgf4 Rg2 Rf6 Bd6 R6f5 Be3 Nc3 Rg7 Na2 Bg5 Rd5 Bg3 Rd6
1N1rb1Q1/1kPQ4/R2bNnBQ/1br5/3nR2r/Kn5p/2RB1PN1/N1r1q3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 h5 g4 a5 b4 e5 c4 d5 Kc2 Kd7 Kb2 Kc7 c5 e4 f6 d3 c6 a4 g6 d4 g5 h4 b6+ Kd6 g7 d2 c7 Kc6 b5+ Kb7 g6 e3 f7 d3 Na3 h3 Nf3 e2 Ne1 Be6 Ng2 e1N Nc2 Bd6 f8N Bc4 Ne6 Nf6 g8Q Qe7 g7 Nf3 Qf8 Na6 g8Q Rd8 Qh6 Nc5 Ka3 Nd4 Ra2 Rh7 Na1 Rh8 Qdg4 d1R Rc2 d2 Bd3 Rf1 Bf5 d1B Bd2 Re1 Rg1 Re5 Re1 Bf1 Q4g7 Bh5 Re4 Be8 Bg6 Rf5 Qe3 Rh4 Qeh6 Qf8 Qd7 Ncb3+ Kb2 Rc5 Ka3 Ka8 b7+ Ka7 b8N Qe7 b6+ Kb7 Kb4 a3 Ka4 a2 Ka3 Ka8 b7+ Ka7 Qgg7 Be2 Qg8 Bb5 Nc6+ Kb6 b8R+ Ka6 Ra8+ Kb7 Nf8 Qe6 Nb8 Qe5 Ra6 Qe6 Rf4 Qe2 Re4 Qe1 Rb2 Bh2 Ne6 Bd6 Nc2 a1R+ Ra2 Rc1 Na1 Rc8 Rc2 Rd8
3Qn2K/2P1B1R1/Nrb1k3/3b2b1/P1b3N1/1RRQnr1n/2QNNp2/3B2rq w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 d5 Kf4 f5 Kg5 b5 Kg6 b3 e4 d4 a4 b4 c4 f4 h4 b2 c6 d3 h6 f3 c5 d2 e6 b3 h7 f2 e5 Na6 c7 Ra7 h5 Qd7 c6 Nh6 Qc2 d1N Bg5+ Ke8 e7 Ne3 Be2 Bb7 Ra3 Qh3 Nd2 b1B Bd1 b2 Ne2 Ba2 Rg1 b1B Rb3 Nf7 h6 Qh1 Rg4 Rg8 h8Q Ba8 Kh7 Rb7 Bh4 g5 Qd3 Rb6 c8R+ Nd8 Rg3 Kf7 e8N g4 Nc7 Ne6 Be7 Nf4 Rg2 g3 Rg1 Nb4 Na6 g2 Rc7 Nh3 e6+ Ke8 Qg7 Nbd5 Qb2 Rg3 Kh8 Rf3 h7 Bh6 Qbc2 Bg5 Bf8 Rf7 e7 Rf3 Rc8+ Kf7 e8N Nf6 Be7 Ke6 Rc7 Nh5 Nf6 Ng7 Ng4 Bb7 Rd7 Ba8 c7 Bc6 Rd4 Bd5 Rc4 Ne8 Rcc3 Bc6 Kg8 Bd5 h8Q Bc4 Qhd4 Bd5 Kh8 Bc6 Ra3 Bc4 Qd8 Bba2 Rf1 g1R Rab3 Rg2 Rg1 Rh2 Rg3 Rg2 Ne5 Rg1 Rg4 Bh4 Rg7 Bg5 Ng4 B4d5 Rb2 Bac4 Rb1 Re1 Rbb3 Rg1
r1r4R/P2QRB2/N4Q2/3BrK2/4n1p1/N3b1r1/1bBnB1P1/kn1bq1QR w - - 0 1 illegal: No proof kernel
1Qb1Q2b/B5b1/1Rn5/BN1b1bBK/1qQ2nR1/r4P1k/1p2NRrP/3Bq3 w - - 0 1 legal: proof: e4 c5 g4 a5 d4 h5 dxc5 f5 gxh5 Kf7 exf5 Ke8 b4 axb4 Ke2 Kf7 Kf3 Kf6 Kg4 d5 a4 g5 c4 e5 f3 b5 a5 d4 c6 b3 c7 e4 h6 e3 c5 b4 h7 b2 c6 e2 a6 e1Q a7 b3 Qe2 d3 Nc3 b1B Qe8 d2 Nge2 d1B Nb5 b2 Ra6 Bd6 Rg1 Be5 Rb6 Ne7 Kh5 Qd6 Rg4 Rg8 h8B+ Rg7 Bd2 Bb3 Bb4 Ng6 Ba5 Bce6 c8Q Bbd5 c7 Nc6 Qa6 Qdb4 c8R Bd3 Rc7 Bc8 Re7 Bd4 Ree4 Bc3 Rg2 g4 Rf2 g3 Rg4 Bd7 Qb8 g2 Qac8 g1B Qa6 Kf7 f6 B3f5 Qac8 Ke6 f7 Kf6 f8B Be5 Qe8 Bc8 Bc5 Bd4 Qf4 Be5 Qc4 Bc3 Rfg2 Bgd4 Rf2 Nf4+ Kh6 Rb8 a8Q Rb7 Qb8 Ra7 Rb7 Ra6 Ba7 Be5 B5b6 Ra3 Ba5 Bd3 Rb6 Kf5 Rh4 Rg2 Bf6 Bb1 Bg5 Bh8 Ng1 Bce5 Be2 Bbe4 Bd1 Beg7+ Kh7 Bde6 Ne2 B4d5 Bh6 Kf6 Rg4 Bf5+ Qg6+ Ke7 Bb3 Bfd7 Qe8+ Kf6 Bd1 Ng6 Bd2 Bf5 Rf4 Kg5 Be3 Rg4 Re4+ Kh4 Bg5+ Kh3 Rd4 Bf6 Kh6 Rg2 Rg4 Bfg7+ Kh5 Nf4+
1q1Q3N/Nb1Q1nk1/KBn5/3bPr2/2P1Bb1b/4bq2/Q1RBpN2/1R4rQ w - - 0 1 illegal: No proof kernel
6bN/2nqrNR1/2q2Qb1/1P5B/1bRN2Q1/b1n2bBp/k2rRB1P/1N3K2 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 exd5 Bd7 axb5 Bc8 f4 gxf4 c4 Kd7 g4 e5 d4 a5 g5 f5 d6 Ke6 c6 h5 c5 Kd5 c7 a4 d7 h4 g6 h3 g7 e4 c6 f3 Bg2 Kc4 d5 e3 d6 e2 Nc3 f4 Bd2 a3 Nb1 a2 Qc1+ Kb3 Be3 Rh7 Bf2 Nf6 g8N Na6 Ne7 Ne4 Ng6 Bb7 c8Q Re7 c7 Nc3 Nh8 Qe8 d8B Qc6 d7 Rb8 Kd2 e1B+ Kd3 Bd2 Qf1 Bc1 Ne2 Ba3 Bg3 f2 Rg1 f3 Nd4+ Kb2 Kd2 Ra8 Kd3 Ra7 Bh1 Re2 Rg2 Bfb4 Bdh4 Rd2+ Ke3 Ba8 d8N Bb7 Qf5 Ba8 c8R Nc7 Qe2 f1B Ndf7 f2 Qeg4 Bd3 Qf6 f1B Re2 Bg6 Kf2 Qd7 Rg8 Bf3 Rg7 B1g2 Ke1 Bd5 Bf2 Bgf3 Kf1 Qc6 Bhg3 Rb7 Nd8 Bg8 Bg2 Na8 Ndf7 Re7 Bh1 Nc7 Bg2 Bd5 Be4 Qd7 Bc2 Bf3 Bd1 N3d5 Re5 B6h7 Qgg5 Bg4 Nc3 Bg6 Rc1 a1Q Be2 Qa2 Nb1 Qc4 Qh4 Qc5 Rc4 Qcc6 Bf3 Ka2 Re2 Nc3 Qhg5 B4f5 Bh5 Be4 Qg4 Bf3
1k2q3/1n1K4/2Qb1Qqr/qP2qQRP/3NpQ2/q1Rb3N/n2B1B2/1B2R1r1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 g5 d4 a5 f4 a4 h4 g3 b4 g4 f6 c4 d6+ Kb7 b6 g2 f7 a3 f5 a2 d7 c3 Ke6 c2 h5 g3 b5 Qc7 f6 Ra7 d5 Ra6 d6 Qc4+ Qd5+ Qc6 Nc3 Rh6 Nh3 g1Q Bd2 c1Q Ne2 g2 Nd4 Qa3 Re1 a1Q Bd3 Qh2 Bb1 g1Q Qg2 Ka8 b7+ Ka7 Qd5 Qg6 Rhg1 Ra5 Rg5 Na6 b8R Nb4 Qf5 Na2 Qf4 Bb7 d8Q Qe8 d7 Be4 Qc8 Bd3 d8B Ra4 Qc6 Ra6 Kd5 e5 Rc8 Bd6 f8Q Ne7+ Ke6 e4 Qh8 Nf5+ Be7 Qeg8+ Kd7 Qa5 Rc7+ Kb8 f7 Qf8 Qf6 Qe8+ Ke6 Q1c3 f8Q Qca3 Qf7 Bc5 Qh7 Nd6 Qf7 Nb7 Qh7 Qh8 Kd7 Bd6 Qhf7 Qg3 Q4f5 Qe5 Qf4 Bb4 Bc5 Ra8 Bb6 Bd6 Q6f5 Qf8 Q7f6 Ra7 Nb3 Ra8 Bf2 Ra6 Nd4 Rb6 Qd5 Rc6 Qde6 Rc1 Rc3 Rd1 Qd5 Rc1 Qc6 Qh8 Re2 Rg1 Re1 Qhe8#
kr1B1B1B/2QbQ1K1/1bNQ3P/N3qR1p/r2n4/B3nrrP/8/R2r1q1R w - - 0 1 illegal: No possible last move
3QN1K1/2q1rBRQ/NPn5/5p1n/1qQ1R2P/q3RNqr/4qBN1/1kbb4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 g5 h4 a5 b6 f5 d6 c4 d7 a4 Ke6 f3 Kf7 c3 h6 g4 d5 g3 d6 a3 b7 g2 e5 f2 h7 a2 e6 c2 e7 Kb3 e8N Qb6 d8Q Ra5 d7 Qd6 Nf3 g1Q Qd3+ Kb4 Na3 Ka4 b4 Nc6 b8N Qgg3 b5 Bb7 b6 Nf6 Rg1 Qb4 Qc4 Nh5 Na6 Bh6 Be3 c1Q Nc2 Re5 Bd4 Re3 Nce1 Ka3 Ng2 Rc3 Bd3 f1Q Bf2 Kb2 Qe7 Qcf4 d8Q Qe2 Rae1 a1Q Bb1 Ba8 Ba2 Qc7 Qed7 Rg8 h8R Bc1 Rh7 Rg6 Rg7 Re6 Kg8 Re7 Rh1 Rce3 Rh3 Rd3 Bb3 Qaa3 Ba2 Qg5 Bb3 Kb1 Rg3 Qgf4 R3g4 Qg3 Re4 Qed2 R1e3 Qe2 Qc5 Bb7 Bf7 Rc3 Nb8 Ba6 Qc4 Bb5 Na6 Ba4 Qde6 Bb3 Qh6 Bd1 Qh7 Qg6 Ng1 Qeb2 Re1 Rh3 Nf3 Qgg3 R1e3 Qe2
2BNn3/3n4/QPp3P1/b1R2b2/1RqQ4/3q1R1r/k2qNQr1/q2QKNBq w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 g4 h5 b4 a5 f4 e5 d6 e4 g5 c6 f6 Ke6 g6 Kd5 f7 h3 f5 e3 b6 e2 d7 Kc4 f6 h4 d5 a4 b5 h2 d6 a3 b7 h3 b6 a2 Nd2+ Kc3 Rb1 a1Q Rb4 Be7 f8Q Qa4 f7 Nf6 Bg2 Ra7 Nf1 Ne8 Be3 Ra5 Bf3 Rg5 Bg4 Qb3 Be6 Kb2 Bg4 Ka2 Be6 Qc7 d8N Qc4 d7 Rg2 Qd4 Bg5 Qfc5 Bf4 f8R Qd6 Rf5 Be5 Rf3 Rh7 Qd1 Qd3 Qb5 Bb2 Qa6+ Ba3 Nf7 Rh6 d8Q Nd7 b8Q Rh8 Qg3 Rh7 Qb7 Bb2 Qf2 Bc3+ Bd2 Rh8 Qf6 Rh4 Nd8 Rh5 Q6d4 Rh7 Rb3 Ba5 Rb4 Rh8 Qa6 Rh5 Rf5 Rh4 Rc5 Rh5 Nf3 Rh7 Rg1 h1Q Be3 h2 Bg4 Rh3 Bf5 Rg5 Rg3 Qg1 Bg4 h1Q Be6 Qgh2 Ng1 Rg4 Rf3 Rg2 Bh6 Qf4 Bg4 Qfc1 Be3 Qa1 Bf4 Ndf6 Bh2 Be6 Bf5 Bd5 Bd7 Be6 Bc8 Qe4 Kd2 Bf5 Qc1 Nd7 Qd1 Rh7 Nh3 Rh8 Nf4 Rh3 Bg1 Qec2+ Ke3 e1Q+ Ne2 Rg4 Qh4 Qec3+ Kf2 Q3d3 Ke1 Rg2 Qhf2 Qcd2+
1qQqr1BB/b3rp1R/R3PQ2/2b1n3/Brr1BK2/1N6/1nRr1PNQ/1k6 w - - 0 1 legal: proof: b4 e5 c4 b5 cxb5 g5 a4 e4 h4 gxh4 a5 d6 b6 e3 b5 Ne7 a6 Bb7 axb7 Na6 dxe3 Nb8 e4 Ng8 e5 Qd7 Qa4 Qe7 Qd1 Qd8 Kd2 Kd7 Ke3 Ke6 g4 h5 g5 Kf5 g6 c5 g7 a5 e6 h3 e7 a4 e8B h4 Qd4 c4 Kf3 h2 e3 h3 Bd2 d5 Bb4 a3 Ba5 c3 Qa4 c2 Be2 c1R Bd1 d4 Bc6 a2 Bb4 d3 Qa6 d2 Bc5 Nd7 b8Q Ne7 g8B Ng6 b7 Rh4 b6 Rb4 Qc8 Rcc4 b8Q Nf4 b7 Nd3 Bda4 d1R Nd2 Nb2 Bd4 Bc5 Nb3 Rd2 Ne2 Ba7 Rac1 a1B Nf4 Bc5 Bh8 Ba7 Rhd1 h1R Ng2 h2 Rc2 Re1 Qg3 h1Q b8R Qh6 Qh2 Qd6 Rb6 Qb8 Bb7 Ree2 Rh1 Re1 Re6 Ne5+ Kg3 Ree2 Rc6+ Ke4 Rb6+ Kd3 e4 Qd5 Kf4 Qd8 Rg6 Bc5 Qf6 Ra7 Ba8 Re7 Bd5 Nd1 Rh6 Bad4 Rh7 Nb2 Ra1 Ng4+ e5 Ba7 Na5 Bdc5+ Be4+ Kd4 Rcc1 Rb6 Bd3 Re8 Bd7 Rbb4 Bc2 Rc3 Nb3+ Kc4 Bcf5 Rcc2 Ra6 Kc3+ Kg5 Ree4 Ba4 Kd3 Bg6 Rcc4 Kf5 Red4 e6 Ne5 Bb5 Rd7 Ba4 Rde7 Kg5+ Ke2 Rc2 Kd1 Be4 Qd7 Rc3 Qd5 Kf4 Qd8 Rd3 Kc2 Re3+ Rd3 Re2+ Kb1 Rc2 Rd2
7B/4P1K1/2qnQ3/1rQ1p3/RBNRPbQ1/r1n1Q1b1/3b1B1k/2NR1bqb w - - 0 1 illegal: No proof kernel
qkB1nb2/b1b1PNRQ/KprP3B/N4NB1/Qn2b1q1/b7/2r1Q3/1RB5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 d4 Kd7 Kd2 g5 Kd3 f5 Kc4 c5 Kb5 Kc7 e4 f4 a4 g3 h4 f3 a6 f2 d6+ Kd7 d5 c4 a5 c3 h5 c2 h6 g4 e6+ Ke8 e5 b6 d7+ Ke7 h7 g2 a7 g3 a6 Nh6 Nf3 g1B Bh3 f1Q+ Qe2 g2 Nh4 Nc6 Na3 Qf7 Nc4 Qf4 Na5 Qe8 Nf5+ Kd8 e7+ Kc7 e6 Nb4 Rb1 Bd4 Rg1 Ng8 Bg4 Rb8 a8Q Be5 a7 Nf6 Bh3 Rg8 h8B Rg6 Bg7 Bb7 Bh6 Rc8 Bg4 Qf7 Bh3 Qg8 Bg4 Bd6 Bh3 Qg4 e8N+ Kd8 Qb8 Bc7 Ned6 Ne8 a8Q Rf6 Qba7 Qh8 Rf1 g1B Rf3 Be3 Rg3 Bf4 Rg1 Bb8 Nf7+ Kc7 Rg3 Qh5 Rg7 Qg4 Qa6 Ba7 Qd3 Rb8 d8B+ Kc8 Be7 Bc7 Bd8 Rg6 Bdg5 Qg8 e7 Rc6 d6 Qh8 Bce3 c1B Qc2 Ba3 Bc1 Kd7 Qa4 Rc8 Qb8 Ba8 Qbb7 Rc2 Qh1 Be4 Qh2 Bcb8 Qe2 R8c6 Qb7+ Bc7 Qa8 R6c4 Qd5 Kc8 Qdd3 Qg1 Bg4 Kb8 Qh3 Rc6 Qh4 Nd5 Ka6 Qg8 Bh3 Qg4 Qh5 Qh8 Qg6 Qg8 Qh7 Nb4+ Kb5 Qf4 Nh4 Nf6 Qh2 Ka8 Bf5 Qg4 Qe2 Qh8 Rg6 Bg7 Be6 Qc8 Nf5 Bf8 Rg7 Ne8 Bd7 Qb7 Bc8 Kb8 Bge3 Na2 Beg5 Qa8 Ka6 Nb4+
b4B1b/1QRP2qR/b3QQ1b/kP2p2b/Bn4n1/N4Kr1/1rNB2Q1/2qN4 w - - 0 1 illegal: No possible last move, all moves rejected
1B6/1NBpn2R/2n1Rqk1/2Q5/3n2KB/1QnPrnqN/1bN1brRP/7B w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 f5 exf5 Nf6 axb5 Ng8 g4 hxg4 Ke2 Kf7 c4 e5 f4 g5 d3 a5 c6 a4 c5 g3 Kf3 e4+ Kg4 a3 f6 g2 c7 a2 f5 e3 b6 e2 c6 e1Q b7 Bd6 Bf4 Rh7 Nh3 g1N Bg2 Qe4 Na3 Be5 Nc2 Ne2 Rg1 Qe3 Bh1 Ne7 Rg2 Bb2 Bg3 Qe5 Bh4 Nc3 Rc1 a1N Rb1 Ba3 Rb6 Nb3 Qb1 Nd4 Qb3+ Ned5 Ra6 Bb2 Rb6 Ra2 Ra6 Kf8 f7 Kg7 f8R Ne7 f6+ Kg6 f7 Qf6 Rh8 Qg8 f8B Qgg7 Kg3 g4 Rb6 Rh5 Rh7 Rf5 Ra6 Rf2 Rb6 Qg8 Bh6 Ra1 Bf4 Re1 Be5 Na6 b8B Bb7 c8N Nb4 c7 Bf3 Rd6 Re3 Re6 Nbc6 Nd6 Qg7 c8Q Qg8 Bg5 Be2+ Kh4 g3 Nb7 Qg7 Bec7 Qg8 Rg1 g2 Qf8 Rff3 Kg4 Qg7 Bh4 Qg8 Ra1 g1N Ra2 Rf2+ Bf3 Bf1 Bh1 Ngf3 Qc8 Be2 Qf8 Nc8 Qc5 Qg7 Ra1 N8e7 Rg1 Qh6 Rg2 Qh5+ Kg3 Qe5+ Kg4 Qg3+
1N4bN/1NP1B3/1q3b1p/1q1n2nQ/B1bbr1QR/6Pb/RN2r2k/1RKB4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 a5 f4 d5 b4 e5 b6 h6 g6+ Kf6 b5 a4 b7 a3 b6 d3 g7 d4 g3 a2 c5 e4 c6 Qd6 c7 Qe5 Be2 Na6 b8N Be7 b7 Qb5 Nh3 Nb4 Nf2 Nd5 Rh4 Ra4 Ba3 e3+ Kc1 Qb6 Bf3 e2 Nc3 e1Q Nb5 Qb4 Nd6 Q4b5 Bh5 Bd7 Qg4 Rh7 Rb1 a1B Nd1 Bc8 Nb2 d2+ Kc2 d1B+ Kc1 d3 Be8 Bd8 Qh5 Nge7 g8B Nc3 Bb3 Be2 Bd1 Ned5 Bc5 Re7 Bb4 Kg7 f6+ Kh7 f7 Ne4 f8R Bh3 f5 Ng5 Bc5 Rae4 f6 Bef1 f7 d2+ Kc2 Bc4 Rg8 Q5a6 Ba4 Qab5 Re8 Kg7 f8N Kf6 Ng6 Re2 Qg4 R7e4 Nh8 Be7 Rf8+ Ke5 Rf3 Bf6 Qh5 Ke6 Ra3 Bd4 Ra2 Ke5 Ndf7+ Kf5 Be7 Bf6 Nd3 Bad4 Nb2 Re6 Nd8 R2e4 Bf3 d1B+ Kc1 Bdb3 Bd1 Re2 Nbc6 R6e4 b8Q Nc3 Qa8 Bg8 Nb7 Nd5 Qae8 Bc4 Nb8 Bf1 Rh1 Bh3 Qhg6+ Kg4 Qg7 Kf3 Qh5+ Kg2 Qgg6 Bg4 Rh4 Bh3 Qg4 Kg1 Q6h5 Kh2
3Qn3/1NPP1Q2/1R2nB2/Rn1N1p2/rqN1k2r/q3n2b/3bB2B/2Q2NKn w - - 0 1 illegal: No proof kernel
k2qN3/p5BR/n1P2B2/K1r1b1r1/P1bq2q1/N2n1B2/1R1RQ3/1Q1NR1qq w - - 0 1 illegal: No possible last move
2rq2b1/p1r1NN1P/QBK1Nq2/3B2nR/n5nR/P6Q/2kNQ1b1/nn4B1 w - - 0 1 illegal: No possible last move, all moves rejected
2brNk2/p1BR1Pb1/1bB1qb2/QQN2P1q/2b2R2/1Q1B1nR1/3rR3/1n3K2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 h5 b4 c5 f4 e5 d4 h3 g5 c4 d6 e4 g6 h4 b6 h2 g7 h3 b5 e3 d5 e2 d7+ Ke7 f6+ Kf7 b7 c3 b6 c2 f5 Be7 d6 Qf8 d8Q Qe8 d7 Na6 b8R Rh5 b7 Qf8 Nc3 Nc7 Nd5 Ne6 Qa5 Rh6 d8R Nd4 Nc7 Qe8 Bf4 c1B Ra2 Bb2 Rd7 Nf3+ Kf2 e1B+ Ke2 Qf8 Ne8 Bf2 Bc7 Bb6 Ra3 Rh4 Qb3+ Rc4 Qbb5 Rd4 Ra4 Rd3 Rf4 Bc3 Bg2 Rd2+ Kf1 Bb2 Ne2 B2d4 Rg1 h1B Nc3 h2 Rd5 Bd8 Na4 Ne7 Re5 Qg8 Re2 Nd5 Nc5 Nc3 Qb3+ Be6 Rc8 Bc4 b8Q Nb1 Qbb5 Be7 Rd8 Ba1 Qb7 Rb8 Rd7 Rd8 Kf2 Be5 Bf1 Bc3 Rg3 Bg2 Qb3 h1Q Qba6 Qh5 Q6b5 Ne1 Kg1 Bb7 Bg2 Bd4+ Kf1 Bc8 Bb7 Nf3 Bc6 Qgh8 g8B+ Kf8 Bgd5 Qg8 Be4 Qe6 f7 Bg7 Bd3 Bef6
b1Q5/3BN1b1/3BNRn1/2r4n/nq1Nn2B/3Bp1r1/1PQ3QP/k1qR1Kb1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 Kf7 c4 a5 h6 d5 b6 g5 c5 e5 c6 e4 h7 d3 c7 d4 f6 Ke6 b7 Kd5 f7 Kc4 f5 a4 f6 g4 Qe2 Kb3 Nc3 g3 Qg2 e3 Ra2 d2+ Ke2 d1N Ra1 a3 Qe4 g2 Ra2 d3+ Ke1 Nd7 b8B Ne7 Nf3 g1B Bd2 Ra5 Nd5 Rg8 h8Q Ng6 Qh7 Nc3 Ne7 Bg7 f8Q Bb7 c8B Qb6 f7 Ba8 Bd6 Nf6 Bd7 Nh5 Qc8 Na4 f8N Qb4 Ne6 Rc5 Qeb7 Kc2 Nfd4+ Kb1 Bc3 d2+ Ke2 d1N Be1 Ra5 Qg2 Rc5 Bh4 Ndc3+ Ke1 Qb5 Be2 Qb4 Kf1 Ne4 Ndc6 Kc2 Bd3+ Kb3 Ra1 a2 Rd1 a1Q Ncd4+ Ka2 Bhg3 Nh8 Bh4 Qc1 Qf5 Ng6 Qff2 Qa5 Qc2 Ka1 Ke2 Bf2 Rhf1 Bg1 Rf6 Qb4 Kf1 Rf8 Rf3 Rff5 Rf2 Rg5 Rf6 Rg3
3BQq2/1nQr4/1bN1KN2/1BrR2R1/RQ1Q1n1k/q1bPp2q/b3P3/1qB5 w - - 0 1 illegal: No possible last move
8/2Q5/BBK1Qr2/2bNqRnr/N3bn2/1RpPnPR1/k3r1NR/q2Q2r1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Ke4 Kc5 g4 Kb4 d3 h5 f3 a5 f6 c5 f7 a4 d6 c4 Kd5 e4 b6 h3 g5 e3 g6 h2 b7 h4 d7 h3 g7 a3 Ne2 a2 Nbc3 Ra6 Nf4 e2 Na4 e1R Be3 c3 Bb6 Qf6 d8Q Nd7 b8R Qe5+ Kc6 Nc5 Qf6 Bf5 Qe6 Nf6 g8N Rh5 Ne7 Nh7 Ng2 Ng5 b3 Ka3 b4 Re4 b5 Re2 Nd5 Be4 Rc1 Be7 f8R a1N Rf5 Nc2 Rg8 Bf8 Rb1 Ka2 Rb3 Ne3 Rg6 Nf7 Rg3 Bd6 Qf6 Ne6 Qg6 Nf4 Qe6 Ra8 Bd4 Rb8 b6 Ng5 b7 Rf8 b8Q Rf6 Qc7 Bb4 Rg1 h1Q Bb6 Qh2 Rh1 Qg1 Ne1 h2 Bh3 Bc5 Ng2 Qf2 Re1 h1R Bg4 R1h3 Rh1 Qg1 Rh2 R3h4 Bh3 Rg4 Ne1 Nf1 Qc1 Rh7 Qed6 Rg7 Rgg2 Qe3 Qd1 Nf7 Rh5 R4g5 Bc8 Qc1 Qe6 Ne3 Ba6 Qa1 Rg1 Rh7 Rgg2 Rg8 Rf5 Rh5 Rg6 Rf8 Rg7 Rg6 Rg8 Rg1 Rg3 Ng5 Ng2 Rf6
1n4B1/rRb2Qn1/5R2/3nB1k1/N2rRb2/QpB2qq1/PQ1n1P1Q/4NbK1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 d4 Kf6 d6 b5 h6 g5 d7 c5 d5 e5 d6 g4 h5 b3 h7 b2 h6 b4 Qd5 g3 Rh4 c4 Nf3 c3 Bd2 g2 Re4 c2 Nc3 b1N Na4 g1Q Bc3 Qg3 Bc4 c1B Kf1 Ne7 Ne1 Bf4 Qf7+ Kg5 f6 Nf5 Be6 Qe7 d8R Ra7 d7 Ng7 Bd5 Qf3 Kg1 Nd2 Rb1 Ba6 Be6 Rg8 h8B Bf1 h7 Qd6 Rc8 Qdd3 d8Q Bd6 Rc6 Bc7 Qd4 Rd8 Qb6 Rd4 Rb2 Nf5 Bg7 Qde3 h8Q Qd3 Qh2 Qde3 Bh8 Ng7 Qe8 Qd3 f7 Qde3 f8Q Qd3 Re2 e4 Bg8 e3 Rf6 Qg6 Qef7 Qd3 Rc2 b3 Qa3 Qg6 Qbb4 Qd3 Qb2 Qg3+ Ng2 Qe4 Q4a3 Qef3 Re1 e2 Rcc1 Rc4 Be5 Rb4 Rcc6 Rd4 Rb6 Qc3 Rb7 Qcf3 Rc1 e1N Rc4 Nd3 Rcb4 Rd5 Re4 Nb4 Bc3 Qh4 Ne1 Rd4 Rd6 Nd5 Rde6 Ne8 Be5 Ng7 Rf6 Qhg3+
4rB1b/6n1/1qkb4/2rnRQ2/3b1PNK/1QRP4/pRbqqQ1N/NB4Q1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 a5 f4 c5 Kf2 e5 g5 h5 d6 e4 g6 c4 b6 h3 Kg3 a4 b7 c3 g7 a3 f6 a2 b5 h2 f7 c2 b6 e3 Bd3 e2 Na3 Nc6 b8R Nge7 g8N Nb4 b7 Kc6 d7 Nbd5 Nf3 Qb6 d8Q Bf5 Nh6 Ra5 Re1 h1Q Nh2 Qg2+ Kh4 Rc5 N6g4 Be4 Bb2 c1B Bg7 Bb2 Nc2 Bd4 Rc1 Bg6 Na1 Nf5+ Kg5 h4 Bb1 h3 Rc3 Bd6 f8Q Bh7 Kh5 Qe4 Qh4 Qe7 Qff6 Re8 Bf8 Ng7+ Kg5 Bg6 Qf2 Bc2 d3 Qe3 Qf5 Qd2 Nf3 h2 Kh4 h1Q+ Nfh2 Qe4 Qc1 Qd1 Qce3 Qd2 Qeg3 B6e5 Qgg1 Qee3 Ra8 Qe4 b8Q Bd6 Ra7 Qee3 Re7 Qf3 Re5 Qe4 Rc1 e1B Rb3 Qee2 Rb2 Bb3 Rc3 Bc2 Qfg3 Qa7 Qb3 Qb6 Kh3 Bef2 Qe3 Bh4 Qef2 Bf6 Kg3 Ne6 Kh3 Bh8 Kh4 Ng7
2r4n/1R5q/1BN4R/q2brN2/1RB1pN1P/2QnnPBK/NbQ2n2/b4k2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 d4 Kf7 h4 Kf6 b4 a5 b6 c5 d6 g5 f3 e5 Kf2 e4 Kg2 g3 b7 c4 d7 g4 b5 c3 d5 Ke5 d6 c2 f6 a4 b6 a3 f7 a2 Be3 c1N Bg5 Na6 b8Q Nc7 b7 Nd5 Qd3 Bg7 f8N Ra5 Qc7 Nh6 b8R Bb7 Nc3 Nf7 Qc2 Kd4 Ng6 Re8 Qc8 Nh8 Nh3 Qb6 Ba6 Nd3 d8N Qa7 Bf6+ Ke3 d7 Qb6 Rag1 a1B Be5 Rc5 Bd6 Qa5 Na2 Bgf6 Ne7 Bfd4 Qb1 Ke2 Nf5 Re6 Bf4 Re5 Qb4 Bc6 Rb7 Rc2 Rb1 Rc1 Rg1 Ne3+ Kh1 g2+ Kh2 Rcc5 Qa4 Bdc3 R1b4 Bcb2 Rc1 g1N Rc3 Bc1 Qc2+ Kf1 Kg3 Bd5 Rcc4 Rb5 Rc6 Bcb2 Re6 Rb6 Q8c3 Rc6 Bc4 Rc7 Nc6 Rc8 Nf2 Nh3 d8B Qa4 Bb6 Qa5 Kh2 g3+ Kh1 g2+ Kh2 Rf8 Rh6 Rg8 Ng4 Rc8 Nf6 Nf2 Nh5 Nfd1 Kh3 g1Q Bh2 Qg6 Nf4 Qh7 Bg3 Nf2+
1n4Q1/3rnr1R/bBn2bB1/N5Q1/3p1NBq/3qPNk1/KP1R4/Nrn2R2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb3 Kg4 h4 a5 h6 d5 h7 f5 e6 g5 h5 a4+ Ka2 d3 e7 f4 e8R a3 b6 d2 c5 f3 b7 f2 c6 Kf4 h6 g4 c7 g3 Nf3 Bg4 c8B Qh4 Rd8 g2 e3+ Kg3 Bd3 f1Q Bg6 Qe2 Qg1 d1R Nbd2 Ra7 Nb3 Bg7 Bd2 Bf6 Ba5 Qd3 Bb6 Rb1 Rh2 Bh5 Bg4 Ne7 Rh1 Rg8 h8Q Rg7 Qg8 Rh7 Rh2 Rf7 h7 d4 h8N Be5 Rd7 Bf6 Qd1 g1N Rd2 Ne2 Qh1 Na6 b8N Rb7 Nc6 Nb8 Nca5 Ra7 Bh3 Bg4 Rc7 Bc8 Bg4 Ba6 Qc1 Rb7 Qc5 Ra7 Qg5 Rb7 Rc3 Rd7 Rcc2 Nf4 Rh2 Nfd5 Rcd2 Nec6 Rh1 Nde7 Rhh2 Rh1 Rf1 Rg1 Na1 Rh1 Rff2 Rb1 Rf1 Bc8 Nc2 Bg7 B6h5 Qh3 Ng6 Ba6 Nf4 Bf6 Bg6 Qh5 Qe5 Qg5 Rh7 Qh4 Qd5 Qe4 Kb3 a2 Qe5 a1N+ Ka2 Nb3 Na1 Qd3 Qg5 Nc1+
3Q1B2/q1Nr2rr/3bn1Nk/1Q5q/Q1p5/1PPNn1K1/2r3B1/R1RbRb1R w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 f4 Kf7 Kf2 Kg7 g4 h5 g5 d5 b3 c5 e6 a5 e7 a4 e8Q c4 g6 d4 b6 d3 b7 d2 c3 a3 f6+ Kh6 f7 a2 f5 h3 g7 h2 f6 h4 Qe6 h3 Qe8 Nc6 b8Q Qa5 Kg3 Nge7 g8R Nd8 Ne2 Ne6 Qa4 Qh5 Bg2 Rh7 Nf4 Nd5 Ba3 Ne3 Qbb5 Bd6 f8R Rd7 f7 Raa7 Re8 Bb7 f8N Ba8 Qf3 d1B Ng6 Rg7 Rgf8 Rad7 Qfd5 Bc6 Qd4 Bcf3 Qf6 Bfe2 Qd8 Bf1 Bb4 Rb7 Na3 Rbd7 Rc1 a1R Rf5 Ra2 Re5 Rc2 Nd3 Bb8 Bf8 Bd6 Rg1 h1R Ra1 Rh2 Rh1 Nf4 R5e6 Qc5 Rf6 Qa7 Re5 Ne6 Rf2 Ra2 Rc2 Rb2 Rcc1 Ra2 Bd5 Rhc2 Bg2 h2 Qbb8 Rab2 Nb5 Ra2 Nc7 Ra3 Rg1 h1Q Qbb5 Qh5 Rh1 Raa2 Be7 Rh7 Bf8+ Rdg7 Qab4 Ra5 Q5a4 Rd5 Qbb5 Ba3 Re4 Rd7 Re5 Ng4 Re2 Ne3 Re1 Bd6+
BN6/2n3Nq/nR3KbB/2Q2B2/1p1qQb2/RbR1rN1b/BP4P1/1r1n3k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 b4 Ra3 Qd7 Ra1 Qb5 axb5 Kd7 Na3 Ke7 Nb1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 f5+ Kd3 a5 e4 c5 g6 h4 g7 h3 b6 a4 b7 a3 Qb3 c4+ Kd2 c3+ Kd3 c2 Kc4 f3 Bh6 c1Q+ Nc3 h2 Qc2 f4 Na4 a2 Bd3 f2 Nc5 f1B Nf3 Nf6 g8B Qd1 Ne6 Na6 b8N Ne8 Ng7 Nec7 Qb1 Bh3 e5+ Ke7 e6 Kf6 Qc1 Bd6 e7 Ra7 Rg1 h1N e8B Nf2 Bc6 Ra8 Bf7 Re8 Qc3 Ra7 Ba8 Re3 Bg8 Be5 d6 Qc2 d7 Nd1 Rc1 a1Q d8R Qf2 d5 Qb1 d6 Qd2 Be2 Qh7 d7 Qd6 Bd3 Qd4+ Kb3 Be2 Bf5 Bd3 Qc5 Bb1+ Rc3 Be4 Bfe6 Bg6 Bf5 Bd6 Kc2 Be5 Ba2 Bd6 Nh2 f3 Rh8 f2 Nf3 f1B d8Q+ Re7 Ra3 Bc4 Qe8 Re3 Qe4 Bf4 Rd8 Nf2 Rc1 Bb3+ Kb1 Nd1 Rd6+ Ne6 Rb6 Re7 Rb7 Nec7 Rc3 Re1 Qd3 R7e2 Qe4 Re3 Rb6+ Bd6 Rc1 Nf2 Qd3 Rf1 Ne1 Rh1 Rc3 Rg1 Kc1 Rh1 Kd2 Rg1 Nc2 Rb1 Ne1 Nd1 Nf3 Bd5 Ng5 Ke5 Kc2 Kf4 Nf3+ Kg3 Qdc4 Qf6 Qe4 Bf4 Kd2 Re1+ Kd3 Bb3 Ne5 Re3+ Kd4 Qe6 Nf3 Qeg8 Ng1 Kh2 Nf3+ Kh1 Bd7 Bg5 Ke5 Qc4 Bf5 Bf4+ Kf6 Qd4+
1q6/3kbQB1/2Nr2Q1/r1BbnNPP/1nB1K1R1/pq2n1B1/2R4b/3bNR2 w - - 0 1 illegal: No proof kernel
1B3k2/1r1nN1q1/Bb1N2K1/1Rq1RPQ1/N5P1/2N1bn2/2bp1r1q/R2q1QB1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Ke4 d5+ Ke5 h4 f4 d3 b4 h3 g4 d4 c4 h2 f6 a4 c5 d2 g6 a3 g7 d3 b6 a2 b5 Ra7 b7 Qa5 b6 Nd7+ Kf5 e5 b8R e4 b7 e3 Ne2 Nh6+ Kg6 Nf7 g8N Bh6 c6 Qc5 c7 Ng5 f7+ Kf8 Nbc3 Nf3 Ne7 Bg5 Rg1 h1Q Na4 Qh2 Nec3 e2 f5 e1B Rg2 Be3 Re2 B1f2 Qe1 d1Q Ba3 Bd4 Re5 d2 Ba6 Bde3 Qf1 Rh3 Bb4 Rg3 Ba5 Rg2 Bb6 Bg1 Ra8 Bgf2 b8B Bb7 c8N Be4 Nd6 Bc2 Rb1 a1Q Rb5 Rb7 Nb1 Qc6 Nb2 Qh1 Re6 Qg1 Kh7 Bf4 Be3 Ra7 Bc8 Rc7 Ra3 Bg5 Ba6 Rb7 Na4 Qd4 Ra1 Qh8+ Kg6 Qc8 Nbc3 Qgh2 Ree5 Qc4 Bf4 Ba7 Be3 Qc5 Bg1 Rf2 Nec8 Bh6 Ne7 Qf4 Kh5 Kg7 Rbb1 Bb6 f8Q+ Kh7 Qf6 Qh2+ Qh4 Kg7 Rb5 Kf8 Kg6 Be3 Qg5 Qg7#
Nk4B1/1n3B2/qn2n1Qb/1b1nRPqR/Bp1Q3r/1q1K3R/3N1BPr/7N w - - 0 1 illegal: No possible last move
Q1QRR2n/BKn1Rbrb/2N5/q1Q1P1k1/2n3B1/rQ2PbN1/1b4p1/N5q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 f5 h4 g5 c4 a5 b4 d5 b6 a4 b5 f4 h6 a3 h7 d3 h5 d4 Ke4 d2 h6 d3 b7 a2 b6 f3 c5 g4 c6 g3 c7 g2 Qb3 d1N Nd2 Bh3 c8Q f2 Qc5+ Kd7 Kd5 Na6 b8R Nb2 b7 Qa5 Re8 Bf5 e3 Bg6 Be2 Nc4 Bb2 f1B Rd1 a1Q Bg4+ Bf5 Ne2 Ne7+ Kd4 Ke6 b8N Nc7 Ng3 Qc1 Nc6 Rg8 h8Q Rg7 h7 Be2 Rh5 Bf3 Rh6+ Kf7 Re6 Ng6 Bc3 Qa2 Bb4 Ra3 Ba5 Bd5 Bb6 Be7 Ba7 Qcb1 Nf3 d2 Ne1 Bf8 Nc2 Bd6 Rc1 d1B Na1 B1f3 Rd1 Qc1 Rd2 Qg1 Rd1 Qaf2 Rd2 Qfe1 Rd3 Qa5 Rd2 Nh4 R6e7+ Kg6 Qf8 Bc2 h8Q Kg5 Qfg8 Ng6 Qe6 Nf4 Qc8 Bf7 Qg8 Bh7 Qa8 Bh5 Qe6 Ng6 Qec8 Nh8 Rd3 Bf7 Rd2 Be2 Rd3 Ne6+ Kd5 Bf3+ Ne4+ Kh4 Qcb5 Ng5+ Kd4 Ra4 Ng3 Ba3 Rd1 Bc1 Kc5 Ra3 Rd4 Bb2 Rdd8 Qae1 Qa5 Ne6+ Kb5 Qd2 Ka6 Nc7+ Kb7 Kg5 Qc5 Qa5
R1b1Rn1k/Q5q1/rN1B1Kn1/4P2N/qbB3rp/1B4PQ/1B1N2R1/2qq2r1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 a5 Kf3 h5 Ke4 c5 Ke5 f5 b4 Kf7 e4 Kg7 d4 c4 g3 a4 g6 a3 d6 f3 d5 a2 b6 c3 b7 f2 b5 c2 d7 h4 b6 f4 d6 f3 Qd4 Ra4 Rh2 Nf6 Ne2 Rh7 Nf4 Qc7 d8R Ra3 Nh5+ Kh8 g7+ Kg8 Rg2 Ra4 Bb2 c1R Nd2 Nd5 Re8 Ne7 Be2 f1Q Kf6 f2 e5 Ra8 d7 Qe1 d8Q f1Q+ Qf2 Rh8 Qf5 Rb1 Qd4 Nd7+ Kg5 Rh6 b8B Ra4 b7 Rd6 Qb6 Ng6 Qh3 Qh1 Qf2 Rg4+ Kf5 Kh7 g8B+ Kh8 Bb3 Qhg1 Qd4 Rd1 Qa4 Qa7 Qd4 Qc1 Bc7 Qg1 b8N Re6 Bec4 Re1 Rb1 a1Q Qe3 Q1a3 Ra1 Qe7 Ra5 Qg7 Qf2 Qa8 Qd4 Qc6 Ra8 Qa4 Qc5 Ra6 Qa7 Nf6+ Nd7 Nh7 Re6 Bb4 Re8+ Nhf8 Bd6 Qg8 Kf6 Qd4 Ne4 Rg1 Nb6 Qdd1 Nd2 Qg7+
1Q3q2/1r3n1n/b4B2/2N1pR1B/1QPqP1K1/2n4B/1RnbRr2/QN1r2Bk w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 c5 a4 Rh7 axb5 Rh8 d4 cxd4 Kf2 f5 Kf3 Kf7 h4 Ke6 c4 Ke5 b4 d5 e4 a5 g6 f4 h6 d3 b6 d2 b7 a4 h7 d4 b5 d3 g7 a3 b6 a2 h5 Nh6 g8B Ra7 Rh2 Qd4 Ne2 Nd7 b8R Ba6 b7 Nf6 Qa4 d1N Nec3 d2 Qb4 Nf7 Bh3 Bh6 Na4 Nc3 Nc5 d1R Re2 Bg5 h6 e6 Kg2 f3+ Kg3 f2 Be3 f1Q Bg1 Bd2 Kh4 Kf4 Rf8 Kf3 b8Q Nd6 Bf7 Rb7 Be8 Rg8 h8Q Nf7 h7 Rg2 Qg7 Rf2 h8B Nh7 Qge5 Bc1 Rb2 Bd2 Bf6 Ke3 Kg4 Ke2 Qh2 e5 Qh1 Ke3 Rg8 Ke2 Rg5 Ke3 Rf5 Ke2 Na3 Ke1 Rab1 a1N Ra2 Nc2 Rbb2 Qfd3 Nb1 Q3e3 Qc7 Qh6 Qd6 Qf8 Qb8 Nd8 Bh5 Nf7 Ra3 Nd5 Rg3 Nc3 Rg2 Ke2 Qh2 Kf1 Qg3 Ne2 Qga3 Nc3 Qa1 Rf3 Kh4 Rf4+ B3g4 Rf3 Re2 Rf4 Kh3 Rf2 Kh4 Kg2 Bh3+ Kh1 Kg3 Qd7 Kg4 Qd4
1nn2N2/3rq1QB/1qRNQ2r/nB1P3p/BR6/3Q1Q1P/r3b1nK/b3k1N1 w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 d5 c4 Na6 cxd5 Be6 b3 Nb8 Bb2 Bf5 Bd4 Bc8 fxe5 g6 Be3 g5 Bf4 gxf4 d6 Kd7 Kf2 Ke6 g4 Kd5 Kg2 Ke4 d4 Ke3 b6 f5 b7 a5 d7 c5 g5 h5 b4 a4 g6 a3 h3 c4 Rh2 a2 b5 c3 e6 c2 g7 c1N b6 Ra5 e7 Rd5 e8B Ne7 g8B Na6 b8Q Nb4 b7 Nb3 Qc7 Na5 b8N Rh6 Nc3 Ba6 Rc1 a1R Ne4 Nc8 Bh7 f3+ Kg3 Qf6 d8Q f2 Nd7 Bg7 Nf8 Qb6 Ba4 Ra2 Rc6 f4+ Kg2 Bf6 Qg7 f3+ Kg3 Rd6 d5 Rd7 Nd6 Bc3 Qdf6 Ba1 Qb3+ Kd2 e4 Bb5 e5 Ke1 e6 Na6 e7 Nb8 Bfd3 f1Q Rb2 f2 e8Q+ Qe2 Kh2 Qe6 Qf3 Qe4 Qeg6 Qe7 Qa3 Bc4 Rb4 Bb5 Be2 Bc4 Qe6 f1N+ Kh1 Ne3 Kh2 Ng2 Qae3 Bb3 Qed4 Bd1 Beb5+ Be2 Qde3 Bd4 Qd3 Ba1
1q1b4/4Nn2/K2Nb2R/R2Ppr1b/P1B4q/3rR1Nk/B2BBQ2/rQr3n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 e5 Kc4 h5 Kb5 c5 g4 b6 f4 h4 d4 b3 f6 Kg6 d6 h3 f7 c4 d7 c3 Bd2 c2 Na3 c1R Be2 h2 Nc4 b2 Nd6 Bg7 f8Q b1B a4 Ra6 Ra3 Nh6 Re3 Bf6 Qb3 Qc7 d8N Be6 Nc6 Bd8 Qb2 Nf7 f5+ Kh7 f6 Kg6 Qa2 Rh3 Qb3 Bc2 Qa2 Bd1 Ne7+ Kh7 Qa1 Nc6 Qa2 Ra8 Qb2 Rb8 Ka6 b5 Qa2 b4 Qa1 Nh6 f7 b3 Qa2 b2 Qa1 b1Q Qb2 Qe4 Qb1 Ng8 g6+ Kh8 g5 Qh4 Rb3 Rd3 g7+ Kh7 Rb5 Nh6 g8B+ Kh8 g6 Rc8 Rd5 Qb8 Ra5 Rc7 Bf1 Bh5 Ne2 Rd7 Ng3 Rb7 Rg1 h1R Be2 Rbb3 Rg2 Ra3 Rf2 Ra1 Rf3 Rhf1 Re3 Rf5 Qe8 Kg7 f8R Rg5 Rf6 Nf7 Qd7 Kh6 Qa7 Rf5 g7+ Kg5 Rh6 Qg4 Qc5 Kh4 Qa7 Kh3 Qab6 Ng5 Bf7 Qh4 g8B Nf3 Qc5 Bd7 Ba2 Ng1 Bgc4 Be6 d5 Bc7 Ng6 Nd8 Ne7 Nf7 Qd4 Bb6 Qf4 Bc7 Qf2 Bd8
N1b1q1r1/2n2B2/qQK3nB/1NP3BR/2R5/3rp1bN/2b3QP/1b1kqQN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 d5 b4 g5 c4 a5 h6 d3 b6 d4 f6 a4 b7 d2 f7 Ke3 b5 d3 b6 a3 f5 a2 h7 g4 f6 g3 Qg4 g2 Nc3 Ra3 Nb5 Nc6 b8Q Kf2 b7 d1B Bg5 Ke1 Qf3 Bh6 f8Q e5 f7 e4 Qc7 e3 b8N d2 Qb6 Nge7 Nd7 Rg8 h8N Na7 Ng6 Rc3 Nf4 Ng6 Nfh3 Rd3 Qg7 Qe8 f8B Rd6 Rb1 a1Q Rb4 Bc2 Ra4 d1B Ra5 Qb1 Bd3 Qa1 Qf1+ Kd2 Bf5 Bh5 Be6 Rd3 Bf7 Bg4 Qb2 Bf5 Qa2 Bg7 Qb2 Be5 Bfh6 Bg3 Qa2 Nc6 Qb2 Nce7 Qa2 Nd5 Kc6 Ra3 Qc1+ Kd3 Ra4 Bc7 Ne2 Bb1 c5 g1Q Rh4 Qee5 Qa5 Rb3 Rh5 Qe8 Qa6 Bg3 Qb7 Qf8 Nb6 Nc7 Na8 Qd8 Qab2 Qa6+ Qb6 Qf2 Rf1 Qg1 Rf4 Qe8+ Kd6 Qf2 Qf1 Qe1 Qa2 Ra3 Qd5+ Kc2 Qdg2 Kd1 Neg1 Bh4 Rg4 Bfc2 Rc4 Rd3+ Bd5 Qd8+ Kc6 Bg3 Bf7 Qe8+
1B5q/1bNRnBr1/2b1n1B1/rNPQ3K/rq3p2/2b2Q1P/4N2k/1RNR3b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 a5 c4 g5 e4 d5 b4 a4 h6 f5+ Kh5 g4 b6 a3 b7 a2 b5 g3 b6 g2 h3 d3 c5 d4 h7 d2 Bc4+ Qd5 Na3 d3 Qf3 d1B Rb1 a1R Ne2 g1Q Bf4 d2 Nc1 Ra5 Nb5 Na6 b8N R1a4 b7 Bg7 Nc6 Nc7 b8R Qe1 Rb7 Ne7 Rg1 Rg8 h8Q Be2 Ba2 d1B Ncd4+ Kd7 Qh6 Qb4 Qg5 Bc4 Ra7 Qa8 Nde2 Bd5 e6+ Kc6 e5 Bb7 Rf1 Bf6 Bg3 Rg7 Rg1 Bc2 Rd1 Bce4 Bb3 Ng8 e7 Ne6 e8N Ne7 Nec7 Qg8 Qd3 Bh1 Qf3 Qh8+ Qh6 Nf8 e6 Bc3 Be5 f4 Bc2 Ng8 e7+ Ne6 Bg6 Be4 Ra8 Bd5 Rd8 Be4 R1d7 Bd5 e8B Ne7 Bef7 Be4 Na8 Bd5 Bb8 Be4 Nd6 Kd5 Nc7+ Ke5 Qh7 Bec6 Ndb5 Kf6 Qh6 Nf5 Rd1 Ke5 Qg4 Ke4 R8d7 Ke3 Qg2 Ne7 Qe4+ Kf2 Qd3 Qf8 Qg5 Qe8 Qe5 Kg2 Qed5+ Kh2 Q3f3 Qh8+
1r1QN3/1r6/q1r2BNk/n1P3qp/r2Rn3/1Qb1QN1P/2qB3K/2b1QBR1 w - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 gxf5 b5 axb5 Nh6 e4 Ng4 f4 Nh6 f6 Kf7 e5 Ke6 f5+ Kd5 Ra6 Ng8 Ra1 Bb7 e6 Kd6 Bg5 Bf3 Bd2 Bh5 Bc1 Bf7 exf7 Qc7 Nd2 Qc8 Nb1 Qd8 Kf2 Ke5 Kg2 h5 b4 a5 c4 d5 b6 g5 b5 g4 b7 d3 h3 d4 c5 g3 b6 d2 Ra4 Kf4 Bb2 Kg5 Ne2 e5 Ra1 a4 Qe1 d1Q Bc3 a3 Nd2 a2 Rh2 e4 Nf3+ Kh6 Bd2+ e3 Nc3 d3 Nd5 Ra4 Nc7 Nc6 b8Q Qc2 b7 Na5 Ne8 Rh7 Rc1 a1Q Qe5 Qaa2 Kg1 g2 b8Q Qe6 Rh1 Qa6 Kh2 g1R Rd1 Rg6 Qb3 Bd6 f8N Rb7 f7 Qg5 f6 e2 Q5g3 Bf4 Rg1 Be3 Qe5 Rb8 Qf4 Rg7 Ng6 Rh7 Qf2 e1B f8B+ Rg7 f7 Nf6 Qfb4 Ne4 Be7 Rh7 f8Q+ Rg7 Bc1 Bc3 Bf6 d2 Qd6 Re7 Qd8 Re6 Qg3 Rc6 Qbd4 Bf4 Qe3 Rb7 Re1 d1R+ Bd2 Rb1 Rd1 Bb2 Qe1 Bc1 Qbe3 Be5 Qb3 Rb2 Qf4 Bd4 Qfe3 Bc3 Qb4 Nf2 Qc4 R7b5 Qcd3 Bb4 Bdc3 Rb8 Q3d5 Rb3 Rd4 Ne4+ Bd2 Bc3 Qc4 R3b4 Qb3 R4b7
3r1B2/qbn1n2B/2NR3b/1P4QN/2b1PK2/QqQpb3/1r2Nk2/Q2rR2B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 e4+ Ke6 b4 g5 h4 d5 h6 a5 b6 f5 b7 g4 c5 d3 b5 d4 h5 a4 h7 d2 c6 a3 h6 d3 c7 a2 Qb3+ Qd5 Nh3 d1R Nf4+ Ke7 e6 Kd6 e7 Ke5 e8Q+ Kd4 Qd8 Na6 b8N Bb7 c8B Nc7 Ba3 Ke3 Nh5 Ne7 Bg2 Ra5 Qc3 Qb3 Nc6 Rg8 h8Q f4+ Kh2 f3 Kg3 f2 h7 f1B Bf5 Ke2 Kf4 g3 Qhf6 Bg7 h8Q Kf2 Bh7 Bh6+ Qg5 Ra4 Qa8 Rb4 Rg1 Rd8 Bh1 Bh3 Re1 g2 Qhg7 g1B Qge5 Ra4 Bd6 Rb4 Qa3 Be6 Qh8 Ng8 Bf8 Bc4 Qcg7 Rd5 Nc3 Rd8 Ne2 Ne7 Rc1 a1Q Qc3 Qaa2 Qhg7 Qa4 Qa1 Rb2 Qgc3 Qa7 Rb1 Rc2 Rb4 Rb2 Ra4 Qb3 Rb4 Bd5 Rd4 Bc4 Rd6 Bd5 Kg4 Bc4 Qgf6+ Ke3 Qg6 Bh2 Qg5+ Bf4 Bg6 Kf2 Bh7 Ng6 Kf5 Bc1 Kg4 Be3 Kf5 Ne7+ Ke5 Bd4+ Kf4 Be3+
2nN4/q3B2b/Br2Q1RR/kPr2N1P/n2q3K/1B3q2/N1Rpq2Q/4Bbb1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 Kd7 Kf2 Kc7 Kg3 Kb6 c4 g5 h6 e5 f6 e4 h5 a4 f7 d3 h7 e3 f5 e2 f6 a3 Ra2 d2 Qe1 d1B Nf3 g4 Kh4 d4 Nc3 g3 Rc2 a2 Rg1 a1Q Bd2 g2 Na2 d3 Nd4 Be6 Nf5 Bc5 f8N Ne7 f7 Na6 Bc3 Bc8 Ne6 Qf8 Nd8 Rb8 Bd2 Rg8 h8R Rg5 Rh6+ Be6 Bc3 Nc8 Bd2 Qf6 Bc3 Q8h8 f8B Bg8 Be7 Bh7 Bd2 Bd4 Bc3 Nc5 Bd2 Na4 c5+ Kc7 c6 Kb6 c7 Qc6 Bc3 Qhf6 Bd2 Qf3 Bc3 Ka7 b6+ Ka6 b7 d2 b5+ Kb6 Bb2 Bc5 Be5 Ka5 Bg3 Qa6 Bf2 Qa7 Bg3 Rg6 Bf2 Rb6 Bg3 Ra8 b8Q Be3 Qf2 e1Q Qe2 Bd4 Qe6 Be2 Bf2 Qd1 Be1 Bc4 Bd3 Qde2 Be4 Be3 Bd5 Bd3 Bb3 Bd4 Rh1 g1Q Rh2 Qg7 Rg2 Bg1 Rgg6 Qd4+ Qe4 Nd6 c8B Bc4 Ba6 Nc8 Qh2 Rab8 Ne3 Rc6 Nf5 Rc5 Qg4 Rb6 Qe4 Qee3 Qg4 Bf1 Qe4 Qee2 Qg4 Qde3 Qc4 Qc3 Qe6 Qd4+
1N1Q3B/4rn1R/q2rNN2/1P3P1b/1QB1RKnB/1p1q2q1/bR6/Nb3kb1 w - - 0 1 illegal: No proof kernel
3N4/Br4q1/B2bnNk1/1P2p3/1Q1QR2R/2R1bQn1/r1qNPKnr/1n4R1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 h3 fxg4 Qa4 g3 Qd1 g2 Nc3 g5 Nb1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Ra3 Qc8 Ra1 Qd8 b6 Kf7 d4 c5 f4 h5 b4 e5 b7 a5 g5 a4 f5 c4 g6+ Kf6 d6 c3 d7 a3 g7 a2 d5 h4 d6 c2 Nc3 h3 Be3 c1N Nf3 g1B Bg2 Ne7 g8R h2 Rg4 Qc7 d8R Ng6 d7 Na6 b8Q Nb3 Rc8 Nac5 d8N Nd2 Nd5+ Kg7 b5 Bd6 Qb7 Rb8 f6+ Kh7 f7 Nh4 Bd4 Be3 Nf6+ Kh6 Rc1 a1R Qa4 Nb1 Nd2 Rh7 Bh3 g2 Qf3 Rh8 Re4 Ra2 Qa7 Qc6 Rc7 Kg5 Bc8 Rh5 Ba6 g1Q+ Nf1 Qg4 Nd2 Rb7 Kf1 Ng2 f8Q Ne6 Rh7 Bb8 Rg1 h1N Qb4 Rh2 Rh4 Bd6 Qac5 Qg3 Qcc4 Qg4 Ba7 Qc7 Qd4 Qf5 Rc3 Kg6 Ref4 Qc2 Re4 Qg7 Ng8 Bh6 Nf6 Ng3+ Kf2 Be3+
b2k1N2/2Rbq1nN/5B2/1PQ1prQ1/2Bn1n2/bPR1r3/1QK1R1nq/5BR1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 e5 d4 c5 Kd2 h5 g4 a5 d6 h3 g5 c4 d7+ Ke7 g6 h2 b3 a4 f6+ Kd6 g7 Kc7 f7 a3 f5 a2 f6 c3+ Kc2 h4 d5 h3 d6+ Kb6 Qe2 Ra6 Na3 Ne7 g8B Rh6 Nf3 Nbc6 Ng5 Nf5 Rg1 h1B Nh7 h2 Bg5 Qe7 d8R Ng7 d7 Kc7 Nc4 Rh3 Nb6 Re3 Re1 Bg2 Qd2 h1Q Re2 Qh2 Qc1 Ra4 Qb2 Rf4 Re8 Rf5 d8Q+ Kb7 Qd2 Bd7 Rc8 Bf3 Rc7+ Kb8 Kd1 a1N Bh4 c2+ Kc1 Re4 Qg5 Nd4 Kd2 c1N Rc3 Bc6 Nd7+ Kc8 Kd1 Nac2 Kd2 Qb4 Kd1 Be7 Ndf8 Ne3+ Kd2 Ng2 Kd1 Nde6 Kc2 Nd4+ Kd2 Qa5 Nd7 Qa7 f8Q+ Kc7 f7 Bd8 Qg6 Kc8 Bf6 Re3 Qg5 Nd3 Qd6 Ba5 Qc5 Ndf4 f8R+ Kc7 Kd1 Bb4 Bc4 Ba3 Rf7 Bd5 Re7 Kd8 Ndf8 Ba8 Kd2 Bdc6 Kc1 Qc7 Kb1 Qd6 Rc7+ Qe7 Kc1 Bd7 Kd1 Nc6 Kc2 Nd4+
3Kb2N/1bRr1Q1B/7r/Pq1n4/RRQpb2b/2PR1n2/NB1Q4/q2Bqk2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 Kf6 Ke4 b5 Kd5 e5 h4 g5 f4 e4 a4 e3 c6 d6 c7 g4 h6 g3 h5 b3 h7 b4 a5 e2 h6 e1Q Ra4 b2 Nf3 g2 Rh3 g1Q Nh4 b3 Bd3 Qg5 Ng6 Qgg1 Nc3 b1B Na2 b2 c3 Qef2 Qd2 Nd7 Kc6 Ba6 c8B Qe8 Kc7 d5 Rh4 Qe5+ Kd8 Ra7 Rh3 d4 Bc2 Kf7 f6 Ke6 f5+ Kd5 f7 Ne7 f6 Qb8 Bb3+ Ke4 Rf3 Bg7+ f8Q Nd5 f7 Ne5 Qe8 Bc2 f8Q b1B Bb2 Bf6+ Qfe7 Bh4 Rf7 Bg3 Qc7 Qb4 Bf5+ Kf3 Qc8 Kg2 Qc4 Bd1 Rb7 Bh5 Re7 Qc1 Bd1 Be4 Rb7 Qc5 Rbb4 Qa1 Qg8 Qb5 Qe8 Rf8 h8R Rf6 h7 Rc7 Rf8 Bb7 h8R Rh7 Rhg8 Bh4 Nh8+ Rg6+ Rf6 Re7 Rc6 Kg1 Rc7 Qe1 Rf8 Rh6 Bh7 Bhg6 Rf2 Bh5 Re2 Nf3 Re3 Bf7 Qf8 Be8 Rd3 Kf1 Qf7 Rd7+
3B2n1/kN5R/nr3Qb1/PbP4n/r3QpB1/N2R2bB/q1RK2N1/1R1q3n w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 e4 g5 c4 f5 h4 d5 a4 Kd7 c6+ Kc7 e6 Kb6 a5+ Ka7 c5 b5 e5 d4 e7 d3 e8N b3 c7 b4 h6 g4 h7 g3 e6 b2 h5 g2 h6 b3 e7 Nc6 Ra2 Nb8 Bg5 Bd7 c8B Na6 Qf3 Rb8 Kd2 Bb5 Na3 b1Q Ne2 g1N Rc2 b2 Qe4 Qa2 Bh3 b1B Nf4 Ne2 Ng2 Rb6 Nd6 Ng3 e8R Nh5 Nb7 Bd6 Re1 Qd7 Bd8 Bg3 Re5 f4 Rd5 Qg4 Rg1 Qf3 Bcg4 Qd1+ Kc3 d2 Rd3 Qf1 Rh1 d1N+ Kd2 Qf3 Rg1 Nf2 Re1 Nh1 Rf1 Ngf6 Rd1 Rf8 h8Q Ng8 h7 Re8 Qf6 Ree6 h8R Re5 Qe1 Re4 Rh7 Ra4 Qe4 Qf1 Rb2 Bc2 Rdb1 Qd1+ Kc3 Bb3 Rf2 Bf7 Rc2 Qf3 Kd2 Bg6 Qc4 Qf1 Qe4 Qd1+
1kN2QR1/4r2Q/1NrnK2N/p2Q1n2/3q1B2/QP1b2P1/b1n2bBq/1R3R1b w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 Ke4 a5 f4 c5 d4 Kc7 b6+ Kb7 g3 h5 f6 h3 f7 h2 b3 c4 d6 h4 Kd5 e4 d7 h3 f5 e3 f6 e2 Bg2 e1N Nf3 c3 Nfd2 c2 Rf1 h1B Na3 h2 Ke6+ Nc6 d5 Rh5 d6 Ne7 Nac4 Rc5 Rb1 Kb8 b7 Na7 Nb6 Nf5 Ndc4 Nb5 Qd3 Ra7 Bf4 c1Q Qe4 Be7 f8Q Qb2 f7 Nc2 Qd5 Bf6 Qh8 Rc6 f8Q Bd4 Qh7 Qh4 Qc5 Bf2 Qa3 Rc7 Ne5 Qh3 Ng4 Qd4 Nh6 Rc4 Kf7 Qh4 d8R Rc6 d7+ Nbd6+ Ke6 Qh5 Bh3 Be4 Bg2 h1B Re8 Kc7 b8N Ba6 Nc8 Bad3 Rd8 Qh3 Re8 Kb7 d8Q+ Ka8 Nd7 Qh2 Ndb6+ Kb8 Re7 Rac7 Rg7 Rb7 Rg8 Rd7 Be5 Re7+ Kf6 Bc4 Rg4 Ne1 Rc1 Bb1 Rg8 Ba2 Rb1 Nc2 Qd7 Ba6 Qe6 Qg4 Qd5 Qa4 Bf4 Bb5 Qhf7 Bd3 Qh7 Rg7 Ke5 Qd4+ Ke6 Re7+
K1B5/QBQ5/1BR4q/pN1bn1qB/3N2P1/2bk1r1n/n1r1n1QP/1Rr2N2 w - - 0 1 illegal: No proof kernel
b3r3/8/Qrrn1R1B/pN2K2P/1QB1RPBk/1b1qQr2/5q1b/1N1n1RR1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 c4 d5+ Kd3 e5 b4 a5 h4 g4 b6 g3 h6 g2 f3 Bb7 h5 Bd6 b5 Ra6 h7 Nc6 c5 Ba8 b7 Nh6 b8R Na7 b6 Nc8 b7 Re8 c6 Rb6 c7 Ng4 Qe1 Ne3 h8Q+ Kg5 Ne2 g1R f6 Rg3 Rg1 Kh4 f7 Nd1 f8R Qf6 Qh6 e4+ Kc2 e3 Kd3 Bf4 Nec3 e2 Nb5 Nd6 c8B Rc6 Qb4 e1R Bg4 R1e6 Be2 Be5 Qe3 Rh3 Rc8 Bh2 b8Q Qf7 Qb7 Qf4 Kd2 d3 Qa6 d4 Rf6 Qg3 Rc7 Qf2 Re7 Rb6 f4 Rf3 Bb2 Nc8 Ba3 Rec6 Re4 Nd6 Qa4 Nf5 Bf8 Nd6 Qc4 Nf7 Bh6 Nd6 Kc1 d2+ Kc2 d3+ Kb3 Nb2 Kc3 d1B Kd4 d2 Qb4 Bb3 Bd3 d1Q Rf1 Qde2 Bc4 Nd1 Rg1 Rf8 Ke5 Qd3 N1a3 Nb2 Raf1 Nd1 Nb1 Re8+
B1R2NQ1/BBNR1rbb/6qP/5Q2/qr2QP1N/Nn1b4/1p3q1b/2k2n1K w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 a4 Kd6 d4 c5 f4 e5 Kf2 b5 Kg2 g5 h6 c4 h5 b3 h7 c3 a5 c2 f6 e4 h6 b2 f7 e3 a6 b4 a7 e2 Ra4 e1Q Bc4 g4 Ra1 b3 Ba6 g3 Rh5 Qf6 Bf1 Na6 Be3 c1Q Qc2 Bf5 Kh1 Ne7 Qe4 Nc5 Ba6 Rb8 a8B Bg7 f8N Qcd1 Na3 b1B B6b7 Bd3 Rc1 b2 Bf2 Rg8 h8Q Nb3 Rc8 Qg6 Qh7 Qf1 Be3 Qf2 Rh2 Qdc2 Nf3 Qc4 Rg2 Qa4 Nh4 Rh8 Rg1 Rg8 Rd1 g2+ Kh2 g1B+ Kh1 Bh2 Rd2 Be5 Qf7 Rg7 Rd1 Be6 Qff5 Bg8 Rd2 Bh7 Rd1 Ng8 Rd2 Nf6 Rd1 Ke7 d6+ Kf7 d5 Bc3 Qh3 Nh5 d7 Kf6 d8N Rf7 d6 Bd4 d7 Bc3 Bc6 Rb4 Ba7 Bf1 Qc2 Qe4+ Ng2 Be5 Qe3 Kf5 Bcb7 Kg4 Qe1 Kf3 Nde6 Bc3 Rd4 Be2 Nh4+ Ke3+ Nf3 Qf5 Nc7 Qg4 Nh4 Qg8 d8Q Qg6 Rd7+ Bd4 Qeb1 Bf1 Qc5 Kd2 Qe4 Bd3 Qcf5 Kc1 Nfe6 Bg7 Qe8 Qb6 Qg8 Ng3+ Kg2 Nf1+ Kh1 Qe3 Nf8 Qf2
Q1b2B1R/1r2n2Q/1bk1BRpr/q3K3/bRb4n/P4q1N/3P1Q2/1BBn1N2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 b5 Kf4 c5 e4 f5 h4 g6 a3 b3 h6 c4 d6 b2 e6+ Kc6 h5 c3 d7 b4 h7 c2 e5 b3 e7 Kc5 e8Q Qa5 d8B Qc3 h6 Nc6 e6 Ne5 e7 Nf3 Rh4 Ra7 Bd3 Rb7 Qf1 Qa5 Nc3 b1N Nd5 b2 Ne3 Nc3 Qf2 b1B Nh3 Nd1 Nf1+ Kd5 Qf7+ Kc6 Rg4 Nh4 e8B+ Kd6 Bb6 Ne7 Bd7 Bg7 Be4 Bd4 Bc5+ Kc7 Bb4 Bb6 Be6 Ba2 Bc5 Bb3 Ke5 f4 Bd3 f3 Rb4 Ba4 Rab1 Rg8 h8Q Kc6 h7 Re8 Qhf8 Rd8 h8R Re8 Bb2 c1Q Qh7 Qc4 Bc1 Qb3 Rb2 Rd8 Bb1 Rd3 Qh2 f2 Rf4 Rdd7 Rf6 Qf3 Rb4 Rdc7 Ng3 f1B Qf2 Bc4 Nf1 Rd7 Qd8 Rd4 Qdg8 Nhf5 Qd8 Rh4 Qf8 Rh6 Qd8 Nd5 Bf8 Nh4 Qe8+ Bd7 Qb8 Bc8 Qa8 Ne7+
Nrq1B2B/2Bq2R1/k2n1Kp1/r4RQB/1Q4Pn/Pr3q2/1N1r4/Nb3bR1 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 g6 h4 Ra7 b4 axb4 h5 Ra6 h6 Bg7 hxg7 Ra8 Ke2 Kd7 Kf3 c5 Kg4 Kc7 Kg5 Kb6 d4 e5+ f6 h5 f4 h4 a3 b3 f5 b2 d6 e4 d7 h3 d5 c4 d6 c3 Qd5 c2 Nd2 b1R Ngf3 h2 Bb2 c1Q Ne5 e3 Nd3 Ra7 Nb3 Nh6 g8B Ka6 Be2 b5 Bh5 b4 Bf7 Qc2 Be8 Qa5 d8N e2 d7 e1R f7 Red1 f8Q Qac7 f6 Nc6 f7 Rd2 Ne6 Nd4 d8B Nhf5 Kf6 Qd7 Bc7 Nd6 Qg5 Nf3 g4 Rg8 Rf1 Nh4 Rf5 h1Q Bc3 Bb7 Nb2 Bg2 Qe7 Ra8 f8R Bf1 Rf7 Qf3 Be5 Qcc6 Rg7 Qb7 Qf8 Qbc8 Bc3 Rc1 Be5 Rc3 Rc1 Rb8 Na1 b3 Re1 Rb5 Qe7 Ra5 Rb1 Nb7 Qb4 Nd6 Rc1 Bc4 Rg1 Bf1 Nf4 Re3 Nd5 Red3 Nb6 Rc3 Nd3 b2 Na8 b1B Nb2 Rb3 Bf7 Nc4 Rh7 Rf8 Kg7 Qcb7 Bd4 Qdb5 Bc3 Rfd8 Be8 Rb8 Kf7 Q5c6 Bh8 Qc8 Rg7 Nd6+ Kf6 Q6d7
4Q1n1/2bq1N2/3B1kp1/1R1PbPN1/R1Q1br2/3brr2/1Q3BQq/KB1n1R2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 a4 b5 d4 c5 Kd2 e5 Kc2 b3+ Kb2 c4 f4 b4 d6 g6 d7 e4 f6 e3 f5 e2 a5 e1B h6 Rh7 h5 Qe8 d8R Bd7 a6 Rh8 h7 Bc8 a7 Nd7 h6 Bd6 Nf3 Nc5 Nc3 Beg3 Bd3 Bde5 Ra4 Ne4 Bb1 Ba6 Rd5 Qd7 Qe2 Nf2 Ka1 Nd1 Rb5 Re8 Ne4 c3 a8Q c2 Be3 c1Q Bf2 Qd2 Rf1 Re6 Qc4 b2+ Ka2 Bc7 Qac6 Bge5 Neg5+ Ke8 f7+ Ke7 f8B+ Kf6 Bd6 b3+ Ka3 Qf4 Nf7 Qh2 N3g5 Bb7 Qg2 Be4 d5 Re7 Bd3 b1R Bc2 b2 Ka2 Rc1 Bb1 Rc3 Bc2 b1B+ Ka1 Ba2 Bb1 Re8 Qc5 Bc4 Qb4 Ne7 Qc5 Bcd3 Qc4 Rhg8 h8Q+ Rg7 Qf8 Ng8 h7 Rb8 Rb2 Rb4 h8Q Rcb3 Qe8 Rc3 Qh5 Rh7 Qhg4 Rh3 Qe2 Rf3 Qc2 Be2 Rb3 Rce3+ Qb2 B2d3 Qc6 Rd4 Qc4 Bc2 Rb8 Bed3 Rb5 Rdf4 Ra3 Be4 Ra4 Bcd3
1BbN4/q1rrB3/Qr2nP1k/1qRN4/1Q1R2Bn/1NP4K/1pqb1r1B/4R3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 Kf7 Kf2 g5 Kg2 Kg7 h4 b5 a4 d5 c3 e5 h6+ Kh7 f6 d4 a5 d3 a6 d2 c6 g4 c7 g3 f7 e4 h5 b3 f5 b4 a7 b2 Nh3 b3 Ra4 e3 Nf4 e2 Rd4 e1R Kh3 g2 Qg4 d1R Nd2 g1Q Nd5 b1Q Be2 b2 Nb3 Nf6 Bf4 Nfd7 Bh2 Qc2 Qf4 Nc5 Bg4 Bd6 f8B Ne6 Be7 Nd7 Qe4 Rb8 a8Q Be5 Qa6 Re2 Qf4 Qf2 Re1 Ndf8 Qe4 Qd7 Qf4 Bb7 c8R Qb5 Rc5 Bc8 Qe4 Rb6 Qf4 Kg8 h7+ Kg7 Qe4 Rg8 h8N Bf4 Nf7 Ng6 Nd8 Bd2 h6+ Kh7 Bb8 Nh4 Qf4 Rg7 Qd6 Kh8 h7 Rf7 Qf4 Kg7 h8B+ Kh7 Qd6 Kh6 Be5 Qg1 Bh2 Rf2 Bf6 Rc7 Be7 Ra1 f6 Ra3 Qb7 Ra7 Qa6 Rab7 Rc6 Rd7 Qb4 Ra7 Rc5 Rac7 Re2 Qa1 Re1 Qaa4 Qb7 Qa8 Qa6 Qa7
1b2K2N/1b6/2rnQP2/k4rnq/NpBRR3/Qq1P4/rR2q1BB/3q2NN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 b5 Ke4 c5 Ke5 Kc7 f4 Kb6 h4 g5 a4 b3 h6 e6 a5+ Ka6 f6 b2 d6 c4 h7 c3 d7 c2 h5 g4 f7 g3 f5 g2 f6 Be7 f8Q Qe8 d8R Ba3 h6 Qg6 Qe2 Qg4 Ra2 Bb7 Nc3 b1Q Rd4 Qb3 Na4 Bb4 Ba3 c1R Rh4 Rc6 Rb2 Qgh3 Rhe4 Qh5+ Kf4 Bc3 Bd6 Nd7 Be5 Ra7 Qa3 Nf8 Qe3 Bb4 Bc4 Bd6 d3 Bb8 Qe1 Nd7 Bc7 Ne5 Qe2 Nf7 Qg4 Ng5 Ke5 Rc5+ Kd6 e5 Kd7 Rc6 Qe6 Ra8 Rg4 e4 Bh2 e3 Rge4 e2 Kd8 Ka7 a6 e1Q Kd7 b4 Kd8 Ne7+ Kd7 Re8 h8N Ng8 h7 Nh6 Nf7 Qee2 Ne5 Nhf7 h8N Rd8+ Ke7 Rd5 Ng4 Rdc5 Nf2 Rf5 Nc5 Kb6 Nh1 Ra7 Na4+ Ka5 Ke8 Ra8 Nh3 g1Q a7 Qgd1 Ng1 Be5+ Ke7 Re8+ Kd7 Bb8 a8B Rd8+ Ke7 Rdd5 Ke8 Rdc5 Bd5 Rc1 Bc4 Ra1 Bd6 Ra2 Bg3 Qh3 Bh2 Qhh5 Ng6 Bc8 Re5+ Rc5 Bg2 Bb7 Ree4 Rc6 Nh8 Nd6+
nr1NR3/N3R1rb/2N2PQ1/Q2B3K/pq4PR/3n1nbn/1B5k/qrQ2Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 b4 c5 f3 a5 d6 c4 d7 c3 b6 c2 b7 h3 b5 h2 b6 a4 Bc4 Na6 b8Q+ Nc7 b7 Ra7 Nc3 h5+ Kg5 h4 g4 h3 Nge2 Nh6 Kh5 e6 Nd4 Kf4 Nc6 Kg3 d4 e5 d5 e4 f4 e3 d6 e2 Nb5 Qe7 d8Q e1N d7 Na8 Qbd6 Nf7+ Qh6 Kg2 b8R Qb4 Bb2 c1N Qa5 Ncd3 Bd5+ Kg3 Rb1 Bd6 Rc1 Rb7 Nba7 Ng5 Rc2 Rg8 Re2 Rg7 Re8 Rb5 d8N Be6 Qb1 Bg8 Qg6 Bh7 Rb7 Rb6 Rbe7 Rb8 f6 Be5 f7 Bd6 Rf1 h1Q f8Q h2 f5 Qg1 Rf2 h1R+ Rh2 Qgd4 Ba3 Qa1 Rh4 Nh3 Bb2 Kh2 Qff6 Bc7 Qc3 Bg3 f6 Nf3 Qc4 Re1 Qd1 Re3 Qf1 Re1 Qf4 Rb1 Qfg5 Qaa3 Qgc1 Qa1
1b1Qr3/1R2B1QR/qb1q1PNK/NQn2R1p/R1B2rk1/1P5b/B4nrb/8 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 a5 d4 c5 g4 h6 g5+ Kg7 g6 Kf6 b6 e6 d6 a4 d7 h3 b7 c4 g7 a3 d5 c3 d6 c2 Qd5 h2 Bc4 a2 Nh3 Na6 b8R Nc5 Na3 Ra4 Rb7 e5+ Kg4 e4 Kh5 e3 f4 Qb6 d8R e2 d7 e1B Qd3 Bd6 Rf8+ Ke7 Qb3 Bg3 Qb5 Bb8 f6+ Kd6 f5 Ke5 d8Q Qd6 f7 Nf6+ Kg6 Ng4+ Kh5 Ke4 g8B Kf3 Bg5 c1B Nf4 Nf2 Ng6 Be3 Be7 Bgf4 f6 Be5 Re8 Bh3 f8Q B3d4 Raf1 a1Q Qg7 Be3 Ba2 Rf4 b3 B3d4 Bc4 Be3 Rhg1 h1R Rg4 Rg1 Rf8 Rg2 Rf7 Re4 Rh4 Bh2 Rf4+ Kg3 Rf5 Re8 Rh1 Qae5 Ra1 Qee6 Qf8 Ba7 Bb1 Ncd3 Rh7 Bb8 Bd5 Qc6 Qg7 Qed6 Nc4 Rf4 Na5 Qa6 Bc4 Bb6 Ra4 Nc5 Ba2 Kf3 Nf8 Ng4 Kg6 h5 Kg5 Kg3 Ng6 Nf2 Kh6 Kg4
r6R/QN1bn1kq/2B1PNN1/1n1b2q1/8/q1b4Q/1RQp1PNB/rqB2K2 w - - 0 1 illegal: No proof kernel
B3rN1B/qNKq4/B3PPb1/2b1k1NQ/q5R1/nbnR1Q2/1Q1p4/1bNr4 w - - 0 1 illegal: No proof kernel
2b4r/B1b2kBQ/R2PR1q1/5bQ1/1q1q1n2/p2B1RnN/3bQPr1/R3KN2 w - - 0 1 illegal: No possible last move, all moves rejected
1bR3qK/b1N1q2n/NB1P4/RB2n1R1/p1Q2r2/2bb1Q2/4P2Q/r1kqN1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 g5 h4 c5 h6 a5 d6 f5 d7 g4 b6 c4 b7 f3 d5 f4 d6 g3 h7 f2 h5 f3 h6 c3 Qa4+ Kc5 b4+ Kc4 Bg2 f1Q Rh5 c2 Be3 c1B Nd2+ Kc3 b5 Kb2 b6 f2 Rg5 Ra6 Bc6 g2 Bb5 Nf6 Ndf3 Bg7 Ne1 Qg8 d8Q Bf5 Qf8 Bd3 Qc4 Ra8 Qff7 Nc6+ Ke6 Ra7 b8N Ne5 b7 Ra6 Ba7 Be3 Bb6 Ra8 Na6 a4 Rd1 Rf8 b8N Bd4 Nc7 Bc3 Ngf3 g1B Nba6 Qh3+ Ke7 f1Q Qh5 Bgd4 Ng1 Qh4 Qf3 Bc5 Rd2+ Kc1 Rb2 Nfd7 Rd2 Rf4 Rb2 Nf8 Rd2 Be4 Rd5 Bd3 Ke8 Ng4 Ke7 Bgd4 Rf5 Ne5 Kf6 Qe6+ Kg7 Qc8 Ba5 Ba7 Bb6 Bb8 Qfd5 Nfd7 Qf3 Rf8 h8Q Nf6 h7 Bc5 Ba5 Bca7 Bb6 Qe8 Qhg8 Qe6 h8R Nh7 Qf7 Qg4 Qh5 Rf6 Re8 Qe7+ Kh8 Rh6 Qh2 Rh4 Ng2 Qd1 Rc8 Qg3 Ne1 Rh6 Qhg2 Rh1 Qh2 Qb3 Bd7 Bc2 Rg6 Kb2 Nh3 Bd3 Nc2 Ra1 Ne1 Kc1 Ng1 Nc6+ Rg7 Qg6 Ra5 Ne5 Bb5 Qd1 Rgg8 Qgf7 Rg5 Qg8+
q3bnB1/krQ5/2Kp2N1/3nPN1b/1P3QNN/2Bq4/B3Qbrq/2R1q1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kf3 a5 c4 g5 h4 d6 b4 Kd7 e4 Kc7 c5 Kb7 h6 d3 c6+ Kb6 h7 f4 e6 a4 h5 a3 h6 d2 e5 g4+ Ke4 a2 Kd5 g3 e7 g2 e8B f3 c7 f2 Na3 Ra7 Bc4 f1B Bb2 Bh3 c8N+ Kb7 b6 Bg7 Bc3 Ra6 Bf7 Nd7 Ne7 Ra7 Rc1 a1Q Nc2 Qa8 Ba2 Be2 Nf5 Nf8 Nce3 Bf6 Ng4 Bh4 Nf3 Bf2 N3h4 g1Q Be6 Qg3 Rg1 Qh2 Qe1 Ka6+ b7 d1Q+ Kc6 Nf6 Bg8 Qd3 Qd2 Nd5 Qf4 Qd8 b8Q Rb7 Qc7 Qa8 Be6 Rg8 h8N Rg7 h7 Ka7 N8g6 Qab1 h8Q Bf3 Nge3 Bh5 Bg8 Bg2 Ng4 Qa1 Rc2 Qe1 Rc1 Bf3 Nge7 Bf7 Qh5 Rg5 Neg6 Bd1 Nge3 Rg2 Qhf3 Be2 Q3e4 Bh5 Ng4 Nd7 Qef3 Be8 Qe2 Nf8+
4n1k1/5NN1/2prn1qQ/N1B1PB2/qbn3Q1/5P1R/bQR2K1n/qN2r1B1 w - - 0 1 illegal: No proof kernel
NB1K3N/R3Q1r1/R1pPQ1b1/rRn2P2/kbq5/1q4Q1/1bn1N2q/4qQ1B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kd4 a5 Ke5 a4 d4 e6 g4 a3 f4 c6 b4 a2 b6 h3 d6 h2 f6 h4 f7 h3 f5 Qh4 g5 Qh5 d5 Rh6 g6 Ra3 b7 Rb3 b5 Na6 b8Q Nb4 b6 Qg4 g7 Nf6 g8Q Nc2 b7 Ne4 Bf4 Rh7 Nc3 Rg7 Nge2 Ra3 Bg2 Ra5 Qf1 Nc5 Kf6 e5 Nb5 e4 Nc7 e3 Na8 Qg3 Rg1 h1Q Bf3 Qhh2 Bh1 Kd8 d7 Qg4 Bg3 Qc4 Qbf4 Qb3 b8R Qc4 Rb5 Ba6 Rd1 a1B+ Qe5 Bd4 Ra1 Bb2 Qc3 Qb3 Bb8 Qf4 Rg5 h2 Rh5 Qfa4 Rh7 Qac4 Qe5 Ba3 Qe6 Bb2+ Nd4 e2 Ra2 Rg1 Qg3 e1Q Ra1 Bd6 f8N Bc8 Ng6 Bf8 Bg2 h1Q Nh8 Qh2 Bh1 Bd6 Qgf3 Rg7 Qg3 Ra7 Ra6 Bf8 Rab6 Ra5 Ra6 Nb4 Be5 Nc2 Ne2 Bd6 Nb6 Kc7 d8Q+ Kb7 Qde8 Bd7 Q8e7 Bc7 Na8+ Bb6 Q7d6 Be8 Qd8 Bg6 Qde8 Ba3 Bb8 Bb4 d6 Na4 Rd5 Bd4+ Re5 Nc5 Qf8 Bf7 Ke7 Bg6+ Kd8 Bb2 Qff6 Rb5 Ra1 Ra5 Qfe7+ Ka6 Ra3 Kb5 Ra2 Bd2 Rd5 Kb4 Ra1 Rb5 Ra6 Ra5 Re5 Ka4 Rd5 Nd3 Rb5 Nc5 Qe8 Rg8 Rha7 Rg7 Q8e7 Bb4
rrRRB1R1/nrB5/kPN2N1N/3QbPp1/6Nn/3q2Q1/1bq1B1b1/4K1b1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 g5 b4 e5 c4 d5 f4 Kd7 f6 Kc7 b6+ Kb7 f5 a5 b5 e4 f7 d3 c5 a4 h6 e3 h7 e2 h5 d4 h6 a3 Nf3 a2 Bf4 Ne7 Nc3 Bg7 f8Q Na6 Ne5 Nc6 Ng4 Na7 Nd5 Rb8 Bc7 Be5 Rc1 a1B Qd6 Be6 Ndf6 Bb2 Rc3 Re8 h8R Nb4 h7 Nbc6 Rg8 Bd5 h8N Ne7 Nf7 Ng6 Rhh8 Nh4 Nfh6 Bg2 Qb3 Qd7 Qdd5+ Qc6 Rc1 Re7 Rd8 Rd7 Rhg8 d2+ Kf2 d1R Qg3 Rd3 Ke1 Ra3 Rc4 d3 Rc1 Nc8 Rc3 Ka8 b7+ Ka7 b6+ Ka6 Rc1 Na7 Rc2 Qb5 c6 d2+ Kf2 d1Q Bd6 e1B+ Kg1 Nc8 c7 Qbd3 Be2 Re7 Rc4 Q1c2 Rc3 Bd2 Kf2 Be3+ Ke1 Bc5 Rc4 Kb5 Rc3 Raa8 Rc4 Na7 c8B Ng6 Bd7+ Ka6 Be8 Nh4 Rc3 Rc8 b8N+ Ka5 Rc4 Rb7 Rc3 Nb5 Rc4 Be3 Rc7 Bg1 Nc6+ Ka6 Qe3 Qa3 Qg3 Rcb8 Rcc8 Qad3 Bc7 Na7
B1QNrqRn/r5nn/1Pp4R/2P3R1/qBr3nB/N3K1b1/Nb2Q3/4B2k w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 Kd2 Kf7 c4 Ke6 b4 h5 f4 d5 e4 a5 b6 c6 b5 a4 g5 d4 g6 d3 g7 h4 b7 a3 b6 a2 Qe2 h3 Na3 h2 Ke3 Ne7 g8R Ra7 Bd2 Ng6 Be1 Nd7 b8B d2 Rd1 a1B f5+ Ke7 f6+ Ke6 f7 Bb2 Rb1 Bd6 f8B d1Q Rc1 Bc7 Bfb4 Ndf8 c5 Qa4 Rd1 Bd6 Rd5 Nh7 Bc7 Qe7 Bd8 Qf8 Bh4 Bb8 Qd2 Bc7 Ne2 g1R Nc3 g2 Ba6 Rf1 Bb7 g1N Na2 Rf4 Qc2 Nf3 Ba8 Bd6 Qe2 Bb8 Rg1 h1N Rg5 Ng3 Rd7 Nh5 Rd6+ Ke7 e6 Ng7 e5 Rc4 Qd1 Ke8 e7 Kf7 e6+ Kf6 e8Q Nfe5 Qe2 Bc7 Rg3+ Kf5 e7 Bb8 Qd8 Bc7 e8N Bb8 Rf3+ Kg4 Rf5+ Kh3 Rg5 Bc7 Re6 Bd6 Qc8 Bb8 Qh5 Kh2 Nd6 Kh1 Nf7 Nf3 Rg4 Bg3 Nd8 Nfe5 Rg5 Qf1 Rge8 Qf8 Qe2 Rg8 Rd6 Nh8 Rdg6 Qf5 Ree6 Re8 Rh6 Qf8 Reg6 Nh5 Rg8 Ng7 Bbc3 Nh5 Ba5 Ng7 Bab4 Ng4+
1bbBNr2/3n4/rp4P1/4R1K1/P1r1QB1R/2kqQQN1/1q4nB/rq1B3N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 a4 Kd4 g4 h5 f6 c5 d6 b3 f7 b2 g6 h4 g7 c4 d7 b6 g5 e6 g6 h3 Be2 c3 Qb3 c2 Qe3+ Kd5 d4 h2 Nh3 Qc7+ Kg5 e5 d8Q+ Nd7 f4 e4 f5 Nf6 g8N Rh6 Nd2 b1Q Qe8 Ra5 Nf1 Qb2 Bd1 Kc4 d5 Qc6 d6 Qcb5 Ng3 Ra8 Nf2 Ng4 Nf6 Ra6 Ra3 Be7 f8Q Rh8 Rb3 Qd5 Rb5 Qd3 Re5 Kc3 Qff7 Bd8 Qee6 Bc7 Ne8 Rg8 f6 Bb8 Qf8 Rh8 f7 Rg8 Qd5 Rh8 Qe7 Rf8 Qf3 e3 Qde4 e2 Bf4 e1R Qee3 Rh8 f8B c1R Qe6 Rf1 Qf5 Re1 Q5e4 Ra1 Bg7 Rf8 Bf6 Re2 Bd8 Rc2 Bc7 Nc5 d7 Rcc1 d8B Nd7 Rg1 h1Q Rg2 Qe1 Rh2 Rc2 Rh4 Qh1 Qc1 Ne3 Bd6 Ng2 Qce3 Qh3 Nfh1 Qe6 Nh5 Qea2 Bh2 Qab1 N5g3 Rg8 Re6 Rh8 Bf4 Rf8 Re5 Kb3 Be2 Rc4 Bd1+ Kc3
R1NnBB1K/1b3rrq/1p3P1P/7q/4k3/R1q1b3/1Nb1nB1b/Q1Q1NQB1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kg5 c5 Kg6 e6 h4 c4 f4+ Kd4 a4 e5 d6 b3 h6 b2 h5 c3 h7 e4 h6 c2 d7 e3 a5 e2 a6 e1Q a7 Qc7 d8B Qee5 f6 Bb4 f7 Ba5 f8B Na6 f5 Qe1 Nc3 b1B Bb5 Qce5 Na4 Nb8 Be8 Bc7 Nb2 Nc6 Bh4 Q1e4 Ra3 Nd8 Qf1 Nf6 Bf2+ Kd5 d4 b6 Nf3 Nh5 Bce3 c1Q Ne1 Rg8 h8Q Bb7 Kh7 g5 Rh4 Rb8 a8Q g4 Rh1 Rg6 f6 g3 Bg1 g2 Bef2 Nf4 Qaa6 Ke6 d5+ Kf5 d6 Ne2 d7 Bc2 Qg7 Qce3 Kh8 Q3c3 Qf7 Qec5 Qfc4 Rg7 Rh3 Rf7 Rg3 Rc8 Rg8 Bh2 Qa7 Rc7 Qaa6 Ne6 d8N Qb5 Nc6 Nd8 Qa8 Qe7 Qc5+ Ke4 Na7 Rd7 Qc7 Qh5 Nc8 Rg7 Rb3 Qef7 Qa1 Re7 Ra3 Qfg6 Bd4 Ref7 Bgf2 g1B Qc5 Bb8 Qg5 Bgh2 Qgc1 Bbf4 Bg1 Qgf5 Bdf2 Be3 Ra8 Rg3 Rg5 Qd7 Rga5 Rgg7 R5a6 Qdf5 Ra3 Qh7#
BR1q4/1n1r4/P2B2nQ/2b5/1kqr2N1/r1nBNp1Q/2K1P1bQ/2R1NrB1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h4 Kd7 a4 g5 d4 c5 Kd2 b5 a5 f5 d6 Kc6 h6 c4 d7 c3+ Kc2 f4 h5 g4 e6 g3 e7 g2 e8B Ba6 d5+ Kc5 d6 Qb6 d8N Nd7 h7 Bg7 h6 Bf8 Na3 Be7 Nc6 Qd8 Nf3 g1R Ne1 Bb7 Qd3 Rg7 Ne5 Bg2 Qh3 f3 Rb1 Rg4 Be3+ Rd4 Ng4 Bf8 Bg1 Ne7 Qh2 Ng6 Nc4 Rg8 h8Q Rg7 h7 b3+ Kc1 b2+ Kc2 b4 Nce3 Re7 Qg7 Rf7 h8Q Ra7 Rc1 b1N Qgh6 Kb5 Q8h7 Re7 Bf7 Nc5 d7 Nb7 Bd5 Rf7 Q6h3 Bc5 Q7h6 Re7 Nf5 Re3 a6 Red3 Nfe3 Ka5 Kb3 c2+ Kb2 b3 Be4 Qa8 d8B+ Kb4 Bc7 Nc3 Bd6 Qd8 Rb1 Na5 Bc6 Rd7 Ba8 c1R Nf5 Nb7 Nfe3 Rcd1 Rc1 Nd5 Kb1 b2 Kc2 Ra3 Nd3+ Kb5 Q3g3 Rh7 Nf6 Bh3 Bf2 Bg4 Bh3 Rd7 Rg1 Be6 Bf5 Na5 Be4 Bh3 Nfg4 Bf1 Qgh3 Bg2 Re1 Nc3 Bg1 Na2 Rb1 Rc1+ Kd2 Ka4 Ra1 b1Q Bf5 Qb7 Rb1 Qd5 Rb8 Nb7 Rf1 Rb1 Kc2 Nc3 Rd1 Qc4 Rf1 Rb6 Ra1 Rb1 Be4 Rd1 Rc1 Rf1 Ne1 Ka5 Bd3 Kb4
1nBNb1Bq/2qq1b2/P3R1Nr/Q2qR3/4p2n/B4R1B/1br3QP/2k2K1N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 Kf7 c4 Kf6 a4 g5 a5 e5 c6 b5 c5 d5 c7 d4 h6 d3 a6 b3 h7 g4 c6 g3 Ne2 b2 Nbc3 b1B Na2 b4 Qd2 g2 Ng3 g1Q Qg2 b3 Nb4 b2 Ra5 Bd7 c8B Ba2 c7 b1Q Nc6 Qc2 Ba3 Be8 Be6 Qgd4 c8B Ne7 Bg8 Q8d7 Nd8 Bg7 Rg1 e4 Re5 Q4d5 Nh1 d2+ Ke2 Qcc7 Kf2 Bf8 Ke2 Ng6 Re6+ Kg7 f6+ Kh6 f7 Bg7 f8R Bb2 f5 d1Q+ Kf2 Qa1 f6 Bb3 Re5 Nh4 f7 Qg4 Re6+ Kg5 Re5+ Kf4 Re6 Bb5 Rfe8 Qg7 f8N Qgd7 Re5 Bc6 R8e6 Bca4 Bb5 Ra7 Rf1 Ba2 Kg1+ Ke3 Ng6 Ra8 Be2 Kd2 Kf2 Ra7 Bg4 Rb7 Bh3 Rb6 Qg3 Rc6 Qg2 Kc2 Ke2 Rc5 Rf7 Kc1 Kf1 Rc2 Rf8 Qg7 Rff6 Be8 Rf3 Qgd7 Bf7 Rf8 Bg8 Rf6 h8Q Bb3 Qh5 Ba2 Nf4 Rh6 Ng6 Qd2 Re7 Baf7 R5e6 Q2d4 Qa5 Qa2 Re5 Qad5 R7e6 Qdc3 Rh5 Qf6 Rhe5 Qh8
1b2N1RR/8/P1rq1PK1/Q3Qq1n/N2r1Bb1/1p1Q2R1/4bknq/1qN2BR1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 a4 e5+ f6 c5 h4 b5 f4 b3 h6 e4 f5 b2 d3 c4 a5 b4 d6 c3 h7 c2 d7 b3 h5 e3 h6 e2 a6 e1Q Ra2 Ne7 f7 Qf2 Nc3 b1B Qe2 Nd5+ Kg6 Ne3 Na4 Bd6 f8R Ng2 Bf4 c1Q Rg8 Qdc7 d8Q Nd7 Qe1 Nf6 Qa5 Nh5 f6 Qf3 Qe7 Bg4 Rf2 Qh3 Rf3 Rc8 Rg3 Q1c2 Qe8 Qh2 Qe6 Q7c5 Qee1 Rc6 Ne2+ Kd5 Nc1 Kd4 Rg1 Bb8 Qe2 Qd6 Qe8 Qcc5 Qee1 Bc2 Qe6 Bcd1 Qe3+ Kd5 d4 Bde2 Qe5+ Kc4 d5 Qb5 Rc8 Rd8 h8N Qbc5 h7 Qb5 Qe8 Kd4 Nf7 Qbc5 h8R Rd7 Kh7 g5 Kg6 Qb5 Qe6 Qd3+ Qf5 Qe4 Rcg8 Qf3 Be5+ Ke3 Bf4+ Kf2 Qe5 Rd8 Nh6 Rd7 Nf5 Rd8 Ng7 Qe4+ Kh6 Qf5 Ne8 Bh3 Rd3 g4 Rc3 g3 Re3 Qc5 d6 Bhg4 d7 Qd6 Rc3 Rdc8 d8Q Rc4 Qd7 Rd4 Qdb5 Rc6 Re3 Nh4 Qd3 g2 Rh1 g1Q Rg3 Qgg2 Rg1 Qge4 Qdd2 Qb1 Qd3 Qfd7 Kg5 Ng2 Kg6 Qf5+
1b4R1/q1bR1R2/p1rqk1bN/1P3N2/nQ2n1Qb/1K4n1/P2N2r1/2B1NBQ1 w - - 0 1 legal: proof: e4 b5 c4 h5 g4 c5 gxh5 f5 exf5 bxc4 d4 Qc7 dxc5 Qd8 Kd2 Kf7 Kc2 d5 f4 e5 b4 g5 h4 g4 c6 c3 f6 a6 b5 e4 c7 g3 f5 g2 h6 d4 h7 d3+ Kb3 d2 h5 e3 h6 c2 Nc3 e2 Ne4 e1B Qg4 d1N Nd2 Ne3 Ngf3 Nd7 Rg1 Bh4 Ne1 Bd6 Rb1 Bb7 c8N Bb8 Ne7 Nb6 Ra1 Na4 Rb1 Ke8 f7+ Kd7 f8Q Be4 f6+ Nf5 f7 Ke6 Qfg7 Ra7 f8R Rc7 Rf7 Nf6 Q7g6 Re8 h8Q Rc6 h7 Qd6 Qf8 Bd3 Qgg7 Ne4 h8N Bc7 Qd4 Rb8 Qfg7 Rg8 Qb4 Bb8 Qe2 Ng3 Nf5 Bc7 Qeg4 Bb8 Rd7 Bc7 Nf7 Bb8 Bb2 c1B N7h6 Bc7 Ba3 Bb2 Rd1 Be5 Bc1 Bb1 Rf7 Bb8 Rh1 g1Q Rh2 Qa7 Rg2 Qdc5 Q7g5 Bec7 Qe3 Bd3 Qg1 Rg5 Ndf3 Bb1 Rdd7 Qd6 Nd2 Nh1 Qg3 Nec3 Ne3 Bh7 Qgf4 Ne4 Nef5 Rg8 Rg3 Rg4 Re3 Rg2 Rg3 Nac3 Qf3 Na4 Rg8 Bg6 Qg4 Nhg3
1R4bK/q1Bn3N/p1nPrB2/5qRP/R3Bb1N/N2n3k/2Q1Q2q/q2N3r w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 c5 b4 g5 f4 g3 b6 g4 b5 e6 d6 a6 d5 c4 d7 c3 d6 g2 f6 c2 f5 g3 f7 Bb7 f6 Bg7 f8N Qc7 d8B Bf3 b7 Bd5 b6 Rh6 Bb2 c1N Na3 Bh8 Bd3 Rg6 Nh3 g1Q Nf2 g2 Be4 Qg7 Bc7 Qf7 Qc2 Ne7 Nd1 Kh3 Nh7 Qc5 Rf1 g1Q Rf5 Qg2 Rg5 Nec6+ Kf4 e5+ Kf5 Qe7 f7 Nd3 f8N Re6 Ng6 Nd7 b8Q Bf6 Qb7 Rh8 Nh4 Bg7 Qe2 Bh6 Qc8 Qg7 b7 Qa5 Rg6 Bf4 b8R Qc5 Rg5 Qa7 Bf3 e4 Bf6 e3 Be4 Qf8 Kg6 Qf7+ Kh6 Qh5+ Kg7 Qg1 Qc2 e2 Qe8 e1Q Ra2 Qhg4 Qh5 Qf5 Qhe2 Rhe8 Ra1 R8e7+ Kg8 Qc3 Ra2 Qa1 Kh8 Rf7 Nb1 Rg7 Ra4 Qgf2 Na3 Bc4 Rh5 Rg1 Rg5 Rh1 Rg2 Re5 Nf3 Bg8 Rg5 Re6 Rf8 Bg3 Rb8 Kg2 h4 Kh3 h5 Qh2 Nh4 Bf4
5r2/rr1bB2P/3nNK2/1k1NQ3/1n1bqN1p/1Q1qQ1n1/P2R4/R1QRrB2 w - - 0 1 illegal: No proof kernel
2rn1R1q/B1R1r2P/n2qPRBQ/3N1K2/6b1/2bQRNQ1/1rp5/2kn1nB1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kc4 b4 g5 d4 a5 d6 c5 d5 a4 d7 a3 b6 f3 d6 f6 b5 f2 h6 g4 h5 g3 h7 g2 b7 a2 b6 Bg7 h6 Ra7 Kf5 Na6 Nf3 g1R b8Q Rg2 e4+ Kb4 b7 c4 e5 c3 Bc4 f1N Rh3 Rb2 Qd3 c2 Nc3 Ka3 Bf7 Qe7 Rb1 a1Q Bg6 Qf8 Be3 Ne7+ Kf4 f5 d8R Kb3 d7 Nc6 Bg1 Ne3 Rf1 Qd6 Rf8 Nd1 d8R Be6 Rf6 Bf7 Rd7 Rc8 h8Q Nd8 Nd5+ Ka2 h7 Kb1 Rc7 Kc1 Qf8 Bh8 Kg5 f4 e6 Bg7 Kf5 Bh8 Ng5 f3 Qh6 f2 Re3 Be8 Rf8 Bc3 Nf3 Bf7 Qa8 Be8 b8B Rab7 Ba7 Bf7 Rc4 Re7 Qb8 Be8 Rc7 Bf7 Rfe1 f1N Qb3 Qa4 R1e2 Qd4 Rf2 Qh8 Qa3 Qb6 Qd6 Qb4 Qe5 Qd6 Qg3 Rb6 Nh4 Nh2 Kg5 Nb4 Bf5 Bh5 Bg6 Na6 R2f6 Rb2 Nf3 Nf1 Kf5 Bg4+
Q4RrN/1BQ3RP/2pn3k/1N2bq1P/qQ1r4/2R2q2/R1rN2n1/1b2B1rK w - - 0 1 illegal: No possible last move, all moves rejected
1Q1bKRr1/N2n1RQp/1nQB3n/1r3R1B/1q3P1k/4Rb2/B3P1r1/2qN1n2 w - - 0 1 illegal: No proof kernel
b5B1/N1qN1KRp/Pr4rq/k1N4r/4PbQ1/2nRnq1B/3N3Q/1r2BR2 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ e6 Kb6 Kf5 b3 g4 f6 d4 c4 e4 b2 a4 c3 g6 c2 g5 Bd7 d6 Bh6 d5 Qc8 a5+ Ka7 g7 b5 g6 Ka6 Rh3 Qc3 Qg4 Bf4 Rd3 b4 Nd2 b1R Ngf3 b3 Ne5 b2 Bh3 Bc6 e7 Nh6+ Ke6 f5 e8Q Nd7 g8B Nb6 d7 Na4 d8N Rc8 d6 Ba8 g7 Qc7 d7 Nc3 Qeh5 Rb8 Re3 Rb5 Ndc6 Rb6 d8N Kb5 Qg2 Ng4 Rd3 Ne3 Qgg4 Ka6 Nb7 Kb5 Bf7 Rg8 Nd7 Ka6 Nbc5+ Kb5 Ra3 Ra1 a6 b1R Bb2 c1Q Ke7 Qh1 Na7+ Kb4 Rb3+ Ka5 Bd5 Qf3 Kf7 Rh1 Ba3 Rab1 Rb2 Rh2 Rc2 Rhh1 Rc1 Rh2 Rf1 Qh1 Bg2 Rh4 Qh6 Rh5 Ba2 Qh4 Bh3 Qg5 Qd6 Qh6 Bc1 Bg3 Bd5 f4 Qe5 f3 Ba3 Be1 Qh2 Bg3 Bb2 f2 Ba1 Rh8 g8R Bf4 Rg7 Rhb8 Bb3 Rg6 Bb2 Ncd5 Bf6 Nc3 Bh4 Rb4 Rg1 f1Q Be1 Qf3 Rf1 Qb7 Kf8 Qc6 Bg8 Rb6 Kf7 Qc7
1qn4B/B1RN2PQ/1b1bQ3/1N5r/n3P1bp/nN1B1R1q/kb3rRN/4K3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 b4 h5 d4 a5 g6 c5 b6 f5 b5 h4 g5 f3 b7 a4 b6 f4 g7 a3 g6 c4 Rh2 c3 Qb3 a2 Rg2 c2 Nc3 Qc7 Bb2 c1B Bd3 Na6 b8N Rh5 b7 Be3 Nd7 Nc5 b8B Ne7 g8Q Na4 Ba7 Qb8 Rc1 a1B Qh7 f2+ Kd1 f1N Nf3 Rf5 Nh2 f3 Ke1 Nd2 Rc2 Nb1 Rcf2 Kc7 d6+ Kc6 Nb5 Rh5 Qe6 Na3 Bc3 Bb2 d5+ Kb7 Rc2 Ka6 Bh8 Ka5 g7 Kb4 Rc7 Kb3 Nb6 Rh6 d7 Rh5 d8R Ka2 Nd7 Bb6 d6+ Nd5 Kd1 f2 Kd2 Be7 Rf8 f1Q Rf4 Qf3 Ke1 Qh3 Rf3 Bf8 Ne5 Be7 d7 Bd6 d8N Bd7 Ndc6 Bc8 Qeg6 Bg4 Nd7 Ne7 Na5 Nc8 Nb3 Bg1 Bd4 Ra5 Ba7 Bb6 Qf6 Rf5 Qe6 Rf8 N5d4 Rh5 Nb5 Rf6 Rfg3 Rf2 Re3 Be7 Rf3 Bd6
1Q1b3R/1nN1BqP1/1rbBR2q/n3K2P/1N2B3/np2QN2/2r5/1qQ1Nkq1 w - - 0 1 illegal: No proof kernel
5KQB/q2n2P1/1rr5/p1BRn3/N1r1B1qk/RbP1nQ2/r1NN4/bR1R4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 e5 Kc4 h5 Kd5 a5 f4 d3 g4 h4 b4 e4 b6 e3 b7 h3 b5 h2 f6 Kg6 f7 d6 f5+ Kg7 g6 Kf6 g7 Kg5 f6 d2 b6 e2 Ra3 e1N Ne2 Ra7 Bb2 Nd3 Nec3 Qd7 Bg2 Qe7 Qf3 d1R Nd2 Rb1 Rd1 h1R Na4 Nh6 g8Q+ Bg7 f8B Ne5 f7 Kh4 g5 Nbd7 b8N Rc7 b7 Nhg4 g6 Rh6 Na6 Rc4 b8R Rh2 Nb4 Bh8 Bd4 Bf6 Bg7 Ba6 f8R Ne3+ Ke4 Rc1 Rfd8 d5+ Kf4 Qc5 Bh8 Qa7 g7 Rc6 Rb7 Bc4 Bc5 d4 Ke4 d3 Kd4 Nb8 Rd5 Bb3 Ke4 Nbd7 Bh1 N3g4 Kf5 Rb6 Qf4 Rc6 Be4 Rg6 Qf3 Rf2 Bd6 Ne3+ Ke6 Rc4 Bc5 Rh2 Nb1 d2 Rb6 N5g4 Kf7 Ba1 Ke7 Nge5 c3 Rc6 Nc2 Rf2 Rg1 d1Q Nd2 Rb1 Rb4 Qe2 Rd1 Rg2 Rb8 Rb2 Rb6 Ra2 Rb8 Rgg6 Rb4 Qg2 Rb6 Qg4 Rb4 Nb6+ Kf8 Rgd6 Rb5 Nbd7+ Ke8 Rb6 Rb4 Rdc6 Rb5 Rd4 Rb4 Bc4 Rbb1 Bb3 Ke7 Rc4 Ke8 Nb8 Kf8 Nbd7+
qQ2nR2/r2bb1P1/QnB2PR1/b2Q1NK1/3n4/4qBNQ/prNk3B/4n3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kd4 b4 h5 d6 c5 d7 a5 g6 a4 b6 e6 b7 h4 g7 e3 b5 e2 g5 Kd3 b6 a3 g6 a2 Na3 c4 Qa4 h3 Bg2 e1N Nc2 h2 Qa6 Nh6 g8B Nc6 b8Q Qe7 d8Q+ Qd6+ Kg5 e5 f4 e4 g7 e3 f5 e2 b7 Rh7 f6 Bh3 Bf3 Bd7 Bgd5 Na7 Qdc8 Qa3 Bc6 Nf5 Bb2 Bc5 Be5 Be7 Qd6+ Nd4 b8Q Rh4 Qh8 Nc8 Qd5 Nb6 Bd6 Re4 Qh3 Ra7 Rb1 Rf4 Rb5 c3 Bc7 Ng2 Be5 e1N Ne2 Re4 Rg1 h1Q Bh2 Nh4 Ng3 Nf5 Rg2 Nd6 Rg1 Nbc4 Rb7 Re6 Rc7 Qg2 Rc8 Re2 Rf8 Qc1 Ne3 Qh1 Nef5 Kc2 Rg2 Nb6 Rg1 Qa3 d3 Kd2 Rg2 N4b5 d4 c2 Qc4 Qg1 d5 Kc1 Nh5 Qa4 Qab7 Ra6 Kh4 Ne8 d6 Qe3 Rg6 Nd4 Nhg3 Bc8 d7 Kd1 Qg8 c1B Qd5 Bd2 Kg4 Ra8 Kh4 Qa7 Qa6 Ba5 Kg4 Kc1 Kh4 Rb2 d8N Ne2 Ne6 Bd7 Ned4 Kd2 Nc2+ Nd4 Kg4 Qb7 Kh4 Ra7 Kg4 Qa8 Kh5 Qe6 Kg5 Qe3+
2N1Q1N1/1R1n1PQ1/n1B1PprB/K1kBb3/5Rb1/2q2qQr/2N3r1/3bbN2 w - - 0 1 illegal: No proof kernel
bRq5/5PnB/rN1pNnr1/NQ4Rq/RB2k3/3rP1r1/1b2Q3/4KQnR w - - 0 1 illegal: No proof kernel
2k2n2/2BNKp2/1q2n1BB/N5qN/1R3rPr/1Qq5/b1R2PbB/b2QqQ2 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 Ba6 hxg5 Bc8 c4 Kd7 g4 h5 Rh3 a5 Ke2 e5 Ke3 h4 d4 a4 g6 a3 d5 a2 g7 Rh6 d6 Rh8 c6+ Ke6 c7 Kd7 c5 Ra4 b6 Ra3+ Bd3 Ra5 Qf1 Ra3 c6+ Ke8 d7+ Ke7 b7 Ra4 Nd2 Nf6 g8Q Nh5 Rb1 a1Q Nb3 Nf4 Na5 Qb2 Ne2 Bg7 Ng3 Rd4 Qh7 Qb6 Rb4 Qg8 d8B+ Ke8 Qf5 Nd7 b8B Nf8 Bc2 Be6 c8Q Ba2 c7 N4e6 Qf3 Bf6 Q3d1 Rc4+ Kd2 e3+ Kd3 e2 Bb1 Rh5 Bh6 Qg5 Qb3 Rd4+ Kc3 Bg7 Bg6 e4 Qbd1 e3 Qb3 Rd6+ Kc4 Ba1 Qa6 Kd7 Qd1 Qa7 c8N Qb7 Na7 Qb6 N7c6 Rd2 Qb5 Kc8 Ne5 Rd5 Nd7 Rf5 Be5 Rf6 Kd5 Rf5 Nf1 Rf6 Rf3 h3 Ng3 h2 Bc7 Rh4 Nh5 h1B Qbd3 Rf5 Qf1 Bg2 Qdd1 Qb8 Kd6 Qb6+ Nc6 Rf6 Bh2 Rf4 Rh3 e1Q Rg3 e2 Rd3 Qc3 Rd2 e1Q Rc2 Qga5 Ke7 Qae5 Na5 Qg5+
1B6/Q4pR1/rBb5/2bB1Pq1/qBN1KQ1b/NPr2r1Q/n4r1n/k1N1R3 w - - 0 1 legal: proof: g4 d5 e4 dxe4 Nc3 h5 gxh5 b5 Nf3 c5 Nb1 c4 Ng1 c3 bxc3 b4 Bc4 b3 axb3 Bh3 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 d4 Kd5 f4 e5 h4 a5 f5 g5 c4+ Kc6 d5+ Kc5 h6 Kb4 h7 g4 h5 g3 h6 a4 d6 a3 d7 a2 c5 g2 c4 Qh4 d8B Be6 c6 Ra6 c5 Bd7 c7 Nf6 c8N Bc6 Qf3 Qg5+ Qf4 Rg8 Ne2 g1R h8B Rg2 h7 Rf2 Nb6 Ng4+ Kd2 Nh2 Ke3 Be7 Bg2 Re8 Bc7 Rc8 Na3 Bf8 Rb1 a1Q Nbc4 Bd6 Bb6 Be7 Nb5 Qa4 Nba3 Bd6 Rg1 Rf3+ Kd2 e3+ Kd3 e4+ Kd4 Rc7 Be5 Bf8 h8Q Rf2 Nc3 e2 Qh3 e1B Bd2 e3 Bd5 e2 Ke4 Rf3 Rd1 Bh4 Rdf1 e1R+ Ne2+ Rc3 Rg3 Bd6 Rfg1 Rf1 Nc1 Rf2 Re1 Bf8 Be3 Rd3 Bd6 Kc3 Ba7 Bb5 c6 Rc8 c7 Bc6 Beb6 Rdf3 Nb5+ Kc2 Bb4 Kb1 Nba3+ Ka1 Rg4 Bc5 Rg2 Nd7 Bb8 Ne5 Rg3 Nd3 Rg4 Rd8 c8Q Rg8 Qb7 Rc8 Qa7 Rc7 B4a5 Nb4 Rg2 Na2 Bb4 Qh5 Rg8 Qg5 Rg7 Rd7 Nb2 Ba8 Bb7 Rdd3 Bd5 Rc3 Nbc4 Bc6
R3bnR1/b3p1NR/1b1Q3n/Nr3rk1/PqK4N/B2BbP2/Q2BN3/1n2q3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 h4 b5 f3 c5 h6 g5 h5 g4 h7 g3 h6 b3 d6 g2 d7 b2 Qc2 b4 Na3 b1Q Nc4 Qb6 d8Q Kf7 f6 Kg6 f7 Bg7 f8N+ Kf5 Ng6 b3 a4 b2 Na5 Bb7 Rh5+ Kf6 Nh4 c4+ Kc3 Bd5 d4 Bf7 d5 Nd7 d6 Rb8 Bd3 Qe3 Bd2 Rb5 Qb6 Nf8 Qa6 Qf2 Ne2 Qa2 Re1 Be8 Rg1 Qf1 Kd4 c3 d7+ Rb6 d8R b1N Ra8 Qc1 Nf5 Qe1 Qc8 Qa3 Qa2 c2 Kd5 Rb5+ Kc4 Bd7 Qc5 Qb2 Qb4 Kg6 Bc1 Bd4 Bd2 Re5 Qb8 Bb6 Qd8 Be8 Qd6+ Ne6 Bb4 c1B Ba3 Rb5 Rh2 Nf6 Rhh1 Rg8 h8B Bce3 h7 Ng4 Bc3 Rf8 Bd2 Kf6 h8N Ba7 Rh7 Nh6 Qb6 Rf7 Qc5 Nf8 Ng6 Bb6 Qc7 Ba7 Ngh4 Beb6 Rf1 g1B Qf4 Bge3 Qd6+ Kg5 Rg1+ Kh5 Rg8 Rf6 Rgh8 Kg5 Ng7 Rff5 Rg8 Qb4+
B2qN1B1/1Bb1pr1B/Q2N1bq1/R3P3/r1bk1b2/RR2rQ2/P5n1/2n3QK w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h6 g6 Qd6 g5 Ra6 g7 Qb4 g6 Qd6 Bb2 Ra8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Kg2 Kd6 e4 Ke5 d4+ Kd6 h4 f5 h5 c5 h6 b5 h7 c4 a6 f4 a7 b4 Nd2 g4 Nh3 g3 Ng5 b3 Qf3 c3 Rh5 b2 Ne6 b1Q Nc7 c2 Kh1 c1B Bg2 Qc2 Rb1 Nc6 Rb3 Nf6 g8B Ba6 g7 Bc4 Ra3 Ne5 Ne8+ Kd7 d6 Kc6 d7 Nd5 Rg5 Ne3 d5+ Kc5 d6 Kd4 Rf5 Nd3 Rfa5 Qb1 e5 Qbb6 Ne4 Qc6 Qd1 f3 Qg1 f2 Rb3 f1R Rba3 Qdc8 d8Q Rf7 d7 Qg6 N4d6 Qb8 Qc7 Qd8 Qc8 Bd2 Qa6 Nc1 Bb7 g2+ Kh2 Be1 Rb3 Bh4 Rba3 Bf6 Rb3 Rc8 a8B Rc5 Rba3 Rb5 Rb3 Rb4 Rba3 Ra4 Rb3 Qc8 d8R Qd7 Rb8 Qc7 Ra3 Qd8 Qf2 g1B+ Kh1 Qf5 Qf3 Ng2 Bd5 Qg6 Rbb3 Bg5 Be4 Bf4 Bab7 Rf6 Bgd5 Rf7 g8B Bg7 Ba8 Bf6 Bdb7 Rg7 Be6 Rhg8 h8Q Rf7 Qh2 Rh8 Bc2 Rh3 Bed5 Rg3 Bce4 Bge3 Qg1 Bf2 Qe2 Rd3 Qf3 Re3 Qg3 Be1 Bd3 Rf8 Bg8 Qf7 Bdh7 Qg6 Rc5 Ba5 Qf3 Bc7 Ra5 Rf7
2Q1qn1B/n2Pk3/1bBpb2Q/q2Q1KNB/R1r5/5RPN/3rb3/n1QRb3 w - - 0 1 illegal: No proof kernel
3nQ3/3PQqB1/2p1rRnq/1bR4N/1r3Qr1/3K3B/BP1b3n/RN2kr1Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 f4 Kf6 g4 e5 d4 h5 d6 a5 d5 h3 d7 a4 d6 e4 b6 e3 b7 a3 Kd3 h2 Bd2 e2 Be1 a2 Bd2 e1N+ Kd4 h4 Be3 h3 Ne2 Rh6 Qc1 Ne7 Ng3 Qe8 d8Q Nf3+ Kd3 Ra4 d7 Qf7 Qe8 Nbc6 b8Q Nd8 Bg2 c6 g5+ Kg7 f6+ Kg6 Qd1 Rb4 Nh5 Kf5 g6 Kg4 g7 Ng6 g8B Be7 Rf1 h1R f5 h2 Bd4 Rg1 Bh3+ Kh4 Qd6 h1Q Qf4+ Rg4 Re1 Bb7 Re5 Nh2 Rc5 Bf8 Qdf3 Qc1 Qh1 Ba6+ Ke4 Bb5 Qe7 Qg7 f7+ Qf6 Qe8 Bd6 f8R Qf7 f6 Bb8 Rc4 Ba7 Bc3 Be3 Kd3 Bd2 Qff1 Qe6 f7 Qe7 Bg7 Qe6 Nf4 Kg3 Qe2 Qf6 Q2e7 Kf2 Nh5 Qf1+ Kc2 Qe6 Rc5 Ke1 Bh7 Ne5 Be4 Rf6 Bd5 Ng6 Bb3 Rf2 Bc4 Re2 Kd3 Qf6 Rh8 Qf4 f8Q Qh6 Qf4 Re6+ Kd4 Rg1 Rf8 Qf2+ Kd3 Rf1 Qfd6 Qf7 Qf4 Rg1 Qhf3 Rg4 Qd5 Qg8 Rf6 Qf7 Qh1+ Nf1 Nc3+ Bc1 Ne4 Kd1 Rb1 a1R Nd2 Rba4 Kc3 Rb4 Ba2 Ke2 Ne4 Be3 Nd2 Nh2 Rg1 Rf1 Kc2 Rf3 Ra1 Rf1 Nb1 Ke1 Kc3 Bd2+ Kc2 Rc4+ Kd3 Rb4+
1nBkrb2/1R1Pn1Q1/p3qB2/2PqQ1N1/3q2q1/Nn2B3/1Nr4B/Kb3R1Q w - - 0 1 illegal: No proof kernel
Q2B2kn/1nQpbr2/3r2N1/rb1RN2n/q1r2P1Q/2qN1Q2/K1P3B1/6RR w - - 0 1 illegal: No possible last move, all moves rejected
1RBB3N/1qnp2k1/6r1/QNnrq3/1N2Pr2/N1qP4/4QbbR/1K1B1rR1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 Bb7 axb5 Bc8 h4 g5 e4 a5 c4 f5 h6 Kf7 b6 g4 h5 g3 h7 f3 b7 g2 c6 f4 c5 a4 c7 a3 h6 a2 c6 Qe8 Be2 Ra5 Na3 Bc5 Rh2 Na6 b8R Qe5 Nh3 Nf6 Nf2 Ne8 Nd3 Rg8 h8Q Rg6 h7 Rb5 Rb1 a1Q Nb4 Qac3 Ra1 Bb7 c8N Nec7 Qd8 Kg7 h8N Ba7 Rb1 Nc5 Nd6 Ba6 Qc2 f2+ Kd1 Ra5 Ndb5 f3 Bb2 Bb6 Kc1 g1Q+ Bd1 f1R Ra1 f2 Kb1 Ba7 Qd3 Qgg5 Qe2 Qge7 Bc1 Qe8 Qg5 Qc8 Bb2 Qb7 Qgh5 Nd5 c7 Bb6 c8B Nc7 Na7 Bc4 N7b5 Be6 d3 Bh3 Qf5 Bg2 Bc1 Rh1 Be3 f1R Bg5 Rf4 Bd8 Rhf1 Qg5 Na4 Qf5 Bf2 Qg5 Qf6 Qc5 Qfe5 Qa7 Nc5 Qb6 Ra6 Qa5 Rad6 Ka2 N5a6 Ba4 Rd5 Rd1 Re1 Kb1 Rh1 Rf1 Nc5 Bd1 Bh4 Rf2 Re1 Rf1 Bf2 Rg1 Rf1
1RqQ2Qn/K2p1r2/2rkn1BQ/1P3q2/2B3b1/2b1bB2/N3RRPr/1rB3N1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 e5 Kd3 Ke7 Kc4 h5 Kc5 a5 c4 h4 f4 h3 b4 h2 b6 d3 b7 a4 b5 a3 g6 a2 g7 d2 Qg4 d1R Nc3 e4 Bd3 Nc6 b8R Qe8 Kb6 e3 f6+ Kd6 f7 e2 f5 e1B f6 Nge7 g8B Nd8 Bg6 Bh6 f8Q Ne6 f7 Rh7 Rb1 a1Q Rb2 Bg5 Rf2 Bb7 Qh6 Qb1 f8Q Rf7 Na2 Qc8 Qd8 Bf3 Re2 Bc3 c5+ Kd5 c6 Qf5 c7 Kd6 Qc4 Bg4 Qb3 Ra4 Rf2 Rc4 Ka7 Rc6 Re2 Nc5 Rf2 Be3 Re2 Rh7 Qf7 Re1 Qff8 Rf1 Bc4 Rf7 Qg8 Rd1 Nh3 Re1 Rf1 h1R Ng1 Rh2 Rff2 Rf1 Ba3 Ra1 Bc1 Rb1 Qde8 Qd8 c8B Qc7+ Bb7 Qc8 Qd8 Ne6+ Qb6 Bed2 Qbd8 Bg5 Bh5 Ng6 Ba8 Nh8 Bg6 Rc5 Bad5 Be3 Bf3 Rc6+
1q1nn1Q1/1N1pQ1qP/bk1K1B2/5B1r/r3B1N1/n2Q1P1R/1b1B4/1qqR2R1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 a5 Kf3 g5 Ke4 e5 Kd5 g4 h4 a4 b4 g3 c4 e4 h6 a3 h7 a2 f3 e3 c5 g2 b6 d3 b5 e2 h5 e1Q f6 d2 c6 Ba3 f7+ Ke7 h6 Qc7 b7 Kd8 f8Q+ Qe8 b6 Ra6 Rh3 Bd6 Na3 Bb4 Nb5 Ra3 Nd6 Ra7 Bd3 Ra8 Bf5 Na6 b8R Ba3 b7 Qb6 Qe7+ Kc7 Qb3 d1Q+ Bd2 Qc1 Qd3 Qbb2 Rb1 Kb6 c7 Ra7 Ra8 a1N b8Q+ Rb7 Ra7 Nc2 Qa8 Rb8 Nb7 Qf8 Ra1 Qbg7 Rb1+ Bb2 Kd6 Na3 Ra1 Qc4 Re1 Qc1 Rd1 Nc5 Ra4 Ne6 Rg4 Nd8 Rgg3 Nf6 Rg5 Rg8 h8B Nd5 h7 Qe8 Ne2 g1Q Nc3 Qe1 Ne4 Qb1 Rg1 Qf1 Nbc5 Ba6 c8B Nc7 Nf6 Qc1 Qad5 Ra8 Ng4 Rf8 Bb7 Rf7 Be4 Rf5 Qg8 Rh5 Bf5 Ra7 Bbe4 Qef8 Qc3 Qd3+ Qd4 Qdb1 Nb7+ Kb5 Qe5+ Kb6 Be6 Qh6 Rh4 Bb5 Bg6 Nc6 Qf5 Ra4 Qd3 Ba6 Be4 Qb8 Bf6 Qg7 Rh3 Nd8 B6f5 Ne8+
1bb1r1K1/1N1p2QP/R1QB2QP/1Q2bqn1/nN5k/R7/3Rr1BN/1r1r1q2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 f4 a5 h4 g5 b4 d3 c4 g4 h6 d2 h5 a4 h7 g3 b6 g2 h6 a3 b7 a2 c5 Ra4 c6 Qe8 c7 Ra6 b5 Ra7 b6 Qe7 Qh5 d1Q Nf3 g1B Rh2 Qed6 Nc3 Be3 Na4 Nc6 b8Q Bd2 b7 Ra8 Qg6+ Ke7 f6+ Ke6 Ba3 Bg7 Bg2 Qf8 Bd6 Nb4 f7+ Bf6 Rh3 Nd3 Nh2 Nb2 Ra3 Qf1 Rd1 Bb4 Rd5 a1R Rd2 Qe8 f8Q Qf7 Qfg7 Rb1 Nc3 Bc5 Nd5 Na4 Nb4 Ra6 Qa8 Ba7 b8R Rc6 Qb7 Rc2 Ra8 Bb8 Qc6 Rcc1 Ra6 Rd1 Qh5 Qf8 Qg3 Bg7 f5+ Kf6 Qd3 Qf7 Qdb5 Qf8 Qf7+ Kg5 f6 Kh4 Qg6 Qf5+ Kd5 e4+ Kd4 Qf1 Kd5 e3 f7 Nf6+ Ke5 Qg8 f8Q e2 Qe7 Qf8 Qef7 Rg8 Qe7 Bh8 Qef7 Ne4+ Qfg7 Bb7 c8N e1R Nb6 Bc8 Nc4 Q8f3 Na5 Re2 Nb7 Q3f2 Bf3 Ng5+ Kf6 Nh3 Kf7 Rge8 Qgc3 Bf6 Bg2 Qf5 Qce5 Q5f2 Qe7 Qf5 Qf8 Ng5+ Kg8 R8e6 Qff7 Be5 Qfg7 Re8+
2Bn4/1qPQbb2/3RBkr1/N1qQ1N2/5N1p/r1R3r1/1n1QPK2/1rQb2B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 g4 Ke7 c4 f5 b4 d5 e6 a5 c5 h5 b6 f4 c6 d3 b7 f3 c7 d2+ Kf2 h4 b5 a4 b6 a3 g6 a2 g5 d4 g7 d3 g6 Qe8 Rh3 Ra5 Na3 Rh7 Nc4 Rb5 Ne3 Nc6 b8Q Rg5 b7 Nb4 Nf5+ Kf6 e7 Be6 Qd8 Bf7 b8N Qc6 e8Q+ Be7 Qed7 Qb7 Nc6 Rh6 Na5 Rg3 Qc2 d1Q Be3 d2 Qc1 Qc2 Rb1 Nc6 Rb6 d1B Qdd2 a1R Q8d7 Ra3 Bg2 Rh8 Bh1 Nh6 g8B Qc3 g7 Qc5 Bg2 Rg6 Rg3 Rh7 Nh3 Rh8 Nf4 Ng4+ Kg1 Rhh6 Bh3 Ne5 Kf2 Nc4 Bg4 Nb2 Rh3 Bfb3 Be6 Nd8 g8Q Rg5 Rd6 Rhg6 Ke1 Bd5 Bg1 f2+ Kf1 Ba2 Rc3 Bab3 Qc6 Bc4 Qcd5 Bcb3 Qe8 Bc4 Kg2 f1R Qd7 Bcb3 Qe3 Re1 Kf2 Ba2 Bh3 Rg3 Bg4 Bc2 Qcd2 Rb1 Qc1 Bd1 Bh3 Qcb5 Qed2 Qc5+ Q5d4+ Kg5 Bb3 Bc2 Qa4 Bf8 Ne7 Qbd5 Bc8 Bd1 Nf5 Be7 Qd7 Qb7 Bg8 Bd5 Bf7 Be4 Bb3 Bd5 Ba2 Bf7 Be6 Qcb5 Q4d3 Kf6 Qd5 Qc5+
b1r2k2/2P5/1NR1Q2K/1R1rp1Rb/3r1BnR/P1QqQBB1/4b3/b1N2nq1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 b5 Ke3 g5 c4 d5 h4 b3 f4 g4 c6 e6 f6 g3 c7 b2 h6 b4 a3 b3 h5 g2 h7 Bg7 f5 d4+ Kf4 d3 Kg5 d2 h6 Qd5 f7+ Ke7 f8B+ Ke8 c5 Qc4 f6 Qd3 c6 Qf3 Qe2 d1Q Nd2 b1B Rh4 b2 Nc4 Ba6 c8R+ Kf7 Bd6 Ne7 Qe3 Nd7 Be2 Rd8 h8Q Nf5 h7 Ng3 Nb6 Bg6 Rb1 Nf1 Bg3 Bh5 c7 Qe4 Bf3 Ne5 Ne2 Rd4 Rg8 g1R Bd2 Qd3 Nc1 Rd5 Rc4 Rf8 Rc6 Ke8 f7+ Ke7 Bg2 Rc8 Bf3 Qe1 f8R Ng4+ Rf5 Bc3 Qhe5 Bc4 Ra1 b1B h8Q Bd4 Ra2 Ba1 Q5e4 Rh1 Qc3 Rh4 Rh8 Qf2 Rb2 Qg1 Rb5 Bc2 Rh6 Bd1 Re5 Be2 Rh7+ Kf8 Qg6 Nf2 Kh6 Rhd4 Rg5 e5 Qe6 Ba2 Qe4 Bc4 Bdf4 Ba2 Qe3 Bc4 Rbc5 Ba6 Rb5 Bb7 Rg4 Ba8 Rh4 Qc4 Rg7 Qd3 Rg5 Ng4+
5B1R/2P4b/RnrBkbp1/2Q1n1B1/N7/N2q1r1q/1QnQKP2/n2R1B1r w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 h4 e5 c4 d5 f6 a5 h6 d3 b6 a4 h7 d4 b5 d2+ Ke2 e4 c5 a3 c6 a2 c7 d3+ Ke3 Ne7 h5 Nec6 h6 Ra3 b7 Nd7 b8Q Nce5 b6 Be7 b7 Nb6 Ne2 Ke6 f7 Bf6 f8B Qd7 Nec3 g6 Qe1 d1R Qa7 d2 Ke2 e3 b8Q Ra6 Bd6 Rf8 h8R Bb7 h7 Bd5 Na3 Rf7 Rb1 a1N Na4 Ba2 Qbb7 Bb3 Ra8 Rf8 h8B Qh7 Bg7 Qh3 Bb2 Rf7 Bgf8 Rc1 Bg2 Rc6 Bc1 d1Q+ Kf1 Qd5 Qd2 e2+ Ke1 Qdd3 Bf1 Ra5 Rh2 Rb5 Qaa5 Rb4 Qc5 Rh4 Ra6 Qhf5 Nc4 Kd7 Rh1 Nd5 Ne3 Bh8 Qbb5 Nb6 Qdc3 Qh5 Qba5 Rf3 Nc2 Bg8 Bg5 Bf6 Na3 Ke6 Qb2 Qg4 Rh2 Rhh3 Qad2 Qgf5 Rg2 Rh1 Rh2 Qg4 Rh8 Bh7 Rd1 Qh3 Qdc3 Qb5 Kd2 e1N Qd3 Nec2 Ke2 Qb3 Qd2 Qd3+
BRb2B1R/b1p1qr2/1rP2Q1P/4B2b/1Qb3Q1/qRN1n3/2K3n1/k2qQ2N w - - 0 1 illegal: No possible last move
b1Q2Bk1/1PKb2B1/3RqP2/4R3/1rN2qQ1/1p4N1/2B2bQQ/r1n1nbNn w - - 0 1 illegal: No proof kernel
KQ2Nr2/1pQN2r1/8/2qP2kn/1q1PR3/2B1br1r/1NnRb3/1RRBQn2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 e5 Kb5 c5 f4 g5 d4 e4 a4 g4 h4 g3 h6 g2 h5 b3 a5 e3 a6 e2 a7 e1N h7 b2 h6 c4 Nc3 b1Q+ Bb2 Nd7 Na4 c3 Nf3 g1R Ne5 c2 Be2 Nf3 Qe1 c1R Bd1 Bb4 Bc3 Qc2 Nb2 Nb8 Nd7+ Kf7 f6 Kg6 f7 Nf6 f8Q Kf5 Qg7 Rg8 h8R Rf8 h7 Nd2 Rb1 Qe7 Kb6 Rf7 Re8 Nc6 h8R Nf1 R8h2 Nh5 Rd2 Qb3 Kc7 Qc5 Re4 Rf6 Qe7 Rg7 Qd6 Kg6 f5+ Kg5 Qe7 Rb8 a8N Ba3 Qe5 Qbb4 Qh2 Rf8 f6 Rh8 f7 Rf8 Ndb6 Bg4 Nd7 Be2 Qd6 Rh8 f8Q Re8 Qf7 Ref8 Qg8 Rf3 Qb8 Rhf8 Qh2 Rh3 Qd6 Rff3 Kc8 Rc2 Nc7 Rf8+ Ne8 Rhf3 Na4 Bc1 Qdc7 Ra2 Nb2 Ra3 Rc2 Be3 Rcc1 Qba5 Rh2 Nb4 Rf2 Nc2 Rh2 Bd3 Rd2 Qa4 Qa7 Qac4 Kb8 Be2 Ka8 Rh3 Ba5 Rd3 Bc3 Q4b4 Qab8 Bf4 Qd6 Rdf3 Qdc7 Be3
qKB3qR/1pQ2QP1/1b1Pr2N/2B1q1N1/b1R2Rb1/r3N2n/5Bn1/k3qN2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 h5 a4 h4 g4 b3 d4+ Kb4 f4 c5 g6 e6 g7 h3 g5 b2 d6 h2 g6 c4 a5 c3 d5 c2 d7 Kb3 f6 Qe7 d8Q Rh5+ f5 Rh7 f7 Rh6 f6 Bd7 a6 Be8 a7 Ba4 Qh5 Na6 Nh3 Nc7 Be3 c1Q Bf2 Qc4 Ng5 Qec5 Bd3 Ne7 g8N Nf5 g7 Ne3 Bf5 Ng2 Nd2+ Kc3 Bh3 b1B Nf1 Bf5 Rc1+ Kb2 Qd7 Qb3 Rc4 Ka1 Qc8 Rg6 Nh6 Bg4 Qb8 Be7 f8B Bd8 f7 Qcb5 Kd6 e5+ Ne6 e4 Be7 e3 f8R e2 Rff4 Rg5 Qf7 Re5 Ng5 Ne6 Qc7 e1Q Bf8 Qe8 Be7 Qg8 Bf8 Qb5 Be7 Rb8 a8N Re4 Nb6 Ra8 Rb4 Re3 Nc4 Ra3 Nce3 Ra6+ Qb6 Qa5 Rbc4 Qac3 Qc6 Qe5+ Kd7 Qa5 Kc8 Bb6+ Bf8 Qe1 Qcc7 Qa5 Kb8 Qe1 Rfe4 Nef4 Red4 Bf3 Be6 Nh3 Rf4 Bg4 Bc8 Qa5 Rg1 h1Q Bc5 Qh2 Rh1 Qg3 Bg1 Qge1 Bf2 Qb5 Rh2 Qbe8 Rh1 Ba5 Rh2 Re6 d6 Bb6 Nhf5 Ng1 Rh8 Nh3 Nh6 Qb5 Qd8 Qa6 Qdc7 Qa8+
RBqq2k1/PBNPR1nN/2R1rb1r/2pB1NR1/b1r4Q/6K1/6n1/1n1Q1n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 g4 h5 f4 c5 Kf2 b5 a4 e5 a5 e4 a6 h4 d6 h3 d5 b3 a7 h2 d7 b4 f6 b2 d6 b3 g6+ Ke6 g7 Kf7 f5 e3+ Kg3 e2 g5 e1R Nc3 b1Q Nf3 b2 Nh4 Re7 Nb5 Rh7 Nc7 Nh6 g8R Re2 Bg2 Rc2 Re1 Ba6 Bb7 Bg7 Bf4 Bb5 Ra6 Ng4 Rc6 Rc4 Re4 Qc8 d8Q Ba4 d7 Na6 Re5 Rh6 Rge8 Bf8 g6+ Kg8 g7 Ne3 R8e7 Ng2 Rd5 Qa2 Rde5 b1N f7+ Kh7 f6 h1N+ Kh2 Ng3 g8B+ Kh8 Rg5 Bg7 f8R Nf1+ Kh3 Qa1 f7 Bf6 Rfe8 Qb2 f8N Qb6 Nh7 Qa5 Kg4 Qb6 Nf5 Rb8 Na8 Nc7 Kf3 Ne6 Nc7 Ng7 Rf8 Nfd2+ Kg3 Qa5 Qe8 Qb6 Qeh5 Ra8 Qh4 Qa5 Nb5 Qad8 Nc7 Nf1+ Kh3 Qe8 Ne6 Qb8 Ref7 Nh2 Kg3 Qc7 Bd6 Qeb8 Rc8 Qb6 Be5 Q8c7 Rcf8 Re8 Bd6 Re7 Ra8 Qc8 Bb8 Qbd8 Nc7 Re2 Re7 Nf1+ Kf3 Ree4 Bd5 Re6 Kf2 Kg8 Kf3 Nfe3 Kg3 Nf1+
1k1r3n/pN3BrQ/qR3r1R/K1n4n/NBrBQ1bq/1P6/P6b/N4QB1 w - - 0 1 illegal: No possible last move
2qQ2N1/p2Rn1R1/q2Q3B/1N2rB2/3K1rPb/2B1P3/1nRN2nk/1bbB3n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 Kd6 d4 c5 b4 h5 b6 f5 b5 f3 Ke3 h4 g6 c4 g7 c3 b7 c2 b6 h3 Nd2 f2 Ngf3 h2 Ra2 Na6 b8B+ Qc7 b7 Nf6 g8B Rh5 Bh7 f4+ Kd3 Bd7 Bf5 Ng8 Bb2 c1B Bc3 Be7 Rc2 Bh4 Bg2 Ke7 d6+ Kf6 Rf1 Bc8 d7 h1N d8R Ne7 Rd7 Nb4+ Ke4 Nd3 d5+ Ne5 Re1 f1Q Nd4 Kg5 d6 f3 Nb5 f2 Kd4 Kf4 Bf3 Qc6 Bc7 Kg3 b8N Kh2 B7a5 Qc7 Nc6 Nd3 Bab4 Nb2 Ba5 Nd5 Ne7 Qc6 Ng8 Ne7 Bd8 Ba6 Bb6 Rf8 Bba5 Qc8 Bd8 Nd5 Bg5 Ne7 Bh6 Bb7 Be3 Be4 Bh6 Ng6 Rg7 Ne7 d7 Bd3 d8Q Rf6 Bg6 Re5 Bf5 Be4 Bg6 Rf4 Bf5 Qg2 Rg1 f1N Qd6 Ne3 Re1 N3d5 e3 Qf1 Qd8 Qg1 Nc4+ Kg3 Rd2 Nb4 Ree2 N4d3 Rh2 Ne1 Rd3 Qb8 Rhd2 Re6 Kc5 Qf2 Rd7 Bc2 Nbd6 Bb1 Rc2 Kh2 Qd4 Ng2 Nd2 Ree4 Bd1 Qf1 Qe5 Qa6 Nb5 Qa8 Qd6 Re5+ Qd5 Rf3 Kd4 Q8c8 Qd6 Rf4+
k1q5/p1qQ1QN1/2n4R/2r3BR/1P2rbNP/bqQ2b1q/2R1NK2/4nN1B w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kd7 d4 c5 f4 Kc7 b6+ Kb7 f6 e5 f7 g5 f5 e4 f6 g3 d6 g4 d7 g2 d5 e3 d6 e2 Nd2 g3 Rh2 c4 Qc2 c3 Ra5 Nc6 Rh5 Qc7 d8R Ne5 d7 Ba3 f8Q Ne7 b4 N7c6 Qf7 Re8 Qb2 c2 Qc3 Re6 Rdh8 Kb8 d8N Bb7 Qd7 Re7 f7 Re8 Bb2 c1B f8Q Re7 Qf7 Qc8 Nc4 Bf4 R8h6 Qc7 Ne3 Nd3+ Kd2 Qc8 Bc1 Re4 Ne6 Ne1 Ng7 Qc7 Nh3 g1Q Nf2 Qg2 Ng4 Qh3 Bg2 Qc8 Bh1 g2 Qfe6 g1Q Qef7 Bg3 Nf1 Qc5 Rg2 Qc4 Rh2 Qb3 Rg2 Rd4+ Ke3 Bf4+ Kf2 Rd5 Be3 Rc5 Bd2 Ne7 Bc1 Bf3 b7 Nc6 Be3 Bh2 Bg5 Bf4 Kg1 Nc2 Rf2 e1Q Re2 Qeb1 Kf2 Ne1 Rb2 Qe4 Rc2 Qe7 Qdf5 Kc7 b8N Kb7 Q5e6 Qec7 Qed7 Nd8 Nc6 Rb8 Nge3 Ka8 Nd4 Nc6 Ng4 Rbb5 Ne2 Rc4 Qff6 Re4 Qff7 Rc5
1rN1r2k/1QB5/5rb1/3rQP1p/P1BBrb2/1K1n1Rqr/2R1n2Q/3N1BN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 Kg7 d4 e5 Kd2 b5 Kc2 c5 g4 e4 d6 e3 g6 c4 g5 c3 d5 e2 d7 e1R d6 Nc6 Qd4+ Ne5 Rh3 Ne7 Be3 Qc7 d8Q Nc6 d7 Bd6 Kb3 c2 Nc3 c1R Nd1 Rc5 Rf3 Rd5 Rc1 h5 Qb6 Rh6 Qb7 Nd3 Qe7+ Kh8 d8B Rb8 f6 Bf5 Bb6 Re4 f7 Ra8 Rc2 Nd4+ Ka2 Qb8 Bdc7 Ne2 Kb3 Qg8 f8Q Re8 Bd4+ Be5 Ka2 b3+ Ka3 b2 Kb3 b4 g7+ Kh7 Qe6 Rf6 Qfd6 Bg6 f5 Bf4 Qee5 b1R+ Bb2 Qe6 g8N Kh8 Ne7 Qg8 Nc8 Rc1 Bd4 Rb1+ Ka2 b3+ Ka3 b2 Kb3 Bd2 Qh2 Bf4 Qe6 Ra1 Qe5 b1R+ Kc4 Bf7 g6 Ra3 g7+ Kh7 Qa7 Rb8 Qb6 Bg6 Qb7 Qf8 g8B+ Kh8 Be6 Qg7 Bf7 Nc5 Bg8 Rae3 Be6 Nd3 Kb3 Qg8 Rf2 Rh3 Rf3 Bh7 Bf7 Qg3 Be6 Bg6 Bf7 Rdd8 Bc4 Rd5
1Qrb4/2n1Pr1k/pB1rN2B/1QR2Nrb/2N3B1/2rPR3/1Q4rB/2n2K1q w - - 0 1 illegal: No possible last move
1Q1K2B1/3p1n2/5BR1/P1Q1NN2/2BrNk1n/1Pqr1bbr/2R1Qr1B/r5r1 w - - 0 1 illegal: No proof kernel
4B3/2rb1N2/3R1K1R/Qn1q4/n1Qb1bB1/NQPpPb1N/1n2k1nB/2r4B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf4 h5 b4 f5 g4 a5 g6 h4 g5 a4 b6 h3 g7 a3 b7 h2 b5 a2 b6 d3 g6 d4 Qd2 Kd5 e6 Kc4 Ke5 f4 e7 f3 e8B f2 Qh6 d2 Qg5 d1N Nh3 Na6 b8N Nc5 b7 Nf6 g8B+ Nd5 g7 Na4 Nd7 Ra7 b8Q Rc7 Bf4 Ndb2 Bg2 f1N Be6 Ne3 g8Q Bh6 Bg4 d3 B2f3 Ng2 Na3+ Kc3 e3 Kd2 Qb3 Ndc3 Qgc4 Nb5 Rag1 a1B Ke6 Ba6 Ne5 Qd5+ Kf6 Bc8 Nf7 Bd7 Bg3 Rh7 Qe5 Rc8 Qec7 Bf4 Qa5+ Nac3 Be4 Rc7 Rf1 Rc8 Rf3 Ke2 Qca4 Rh6+ Kg7 Bd6 Nhg5 Nh4 Be5 Nc4 Bg3 Rc7 Q4b4 Na4+ Rf6+ Nf3 Be5 Bd4 c3 Ncb2 Q4c4 Rh3 Rg6 Rg3 Rf6 Rg1 Re6 Rc1 Kf6 Bf8 Rd6 Bh6 Rf1 h1B Rf2+ Ke1 Rh2 Kf1 Rh4 Ne1 Nh3 Bg2 Ke7 Bh1 Bh2 Bf4 Rhh6 Bg2 Be6 Ke2 B6f5 Bf1 Bh1 Bg2 Be6 Bf3 Bg4 Bb6 Kf6 Ng2 Qa8 Bc5 Qa5 Bd4+
K3B2b/N1bQ2R1/4Q2B/1Q2b1n1/NnR2Pb1/3pnBr1/3q1k1P/B3Rn1r w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 c4 g5 f6 d5 h6 g4 h7 a4 b6 g3 f7 g2 b5 d3 b7 a3 b6 d4 Nf3 g1N Bh6 d2 Ne5 a2 f4 Ke3 Nc6 Ne2 Nc3 Bf5 Rg1 Nf6 Na4 Bg7 f8Q e5 Qe8 e4 Qe6 Kf2 Na7 e3 Bg2 Nc6 b8Q Rg8 h8B Ng3 b7 e2 Bf3 e1B Qbe5 Qd6+ Kb6 Nfe4 b8R Ng5 Kb7 Nf1 c5 Bg4 Rc8 Nb4 c6 d3 Qb5 Be5 c7 Qc5 Qc2 Qe3 Qcc6 d1N Qcd7 Qd2 Rc1 a1B Re8 Na6 c8B Nde3 Rc4 Nb4 Bf6 Bc7 Re7 Bae5 Rg7 Bed6 Ba1 Be5 Nc6 Ra5 Na7 Ra6 Ka8 Rc6 Re4 Rc1 Rh1 Qc2 Rc4 B1c3 Rg1 Qd2 Rh1 Ng3 Re1 Ngf1 Qd8 Bb2 Bd7 Bbd4 Be8 Bc3 Rh7 Bh8 Qdd5 B3e5 Rg7 Nf7 Qed6 Bf5 Qdd7 Ng3 Rh7 Rg4 Rg1 Ng5 Rg7 Rb1 Rgc1 Be6 R1c3 Rh1 Rc1 Ngf1 Re1 Rg3 Q5d6 Bh3 Q6e6 Bg4
B1b1n1qn/2BQN2N/k6n/4RP1n/p1PK1b2/2Qb2b1/1N2RQ2/rQ1r2R1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 f4 Kc7 b4 Kb6 c4 g5 f6 e5 f7 a4 h6 g4 h7 g3 h5 g2 h6 Ne7 Rh2 Ng6 Nh3 g1N Re2 Nd7 Ng5 Nf6 Bg2 Nh3 Nc3 Bd6 f8Q Ne8 f5 Kb7 b6 Ka6 b7 Rg8 b8R Nh8 Bf4 e4+ Kd2 d3 Ke3 d2 Rb5 Rg6 Kd4 e3 Qg1 d1B Qf7 Rb8 Qf2 Bc2 Rg1 Bd3 Qd7 Ra8 Bh2 Nf4 Nd1 Nh5 Nb2 Bf4 Bf3 Rb8 Rc5 Rd6 b5+ Ka5 b6+ Ka6 Ne4 Qg5 b7 Qg7+ Nf6 Qg8 Ree1 e2 Bg2 Ra8 b8Q Ra7 Qb3 Rb7 Qa2 Rb3 Qb1 Ra3 Bf3 Nf7 h8N Ra1 Ng6 Nh8 Qd8 Rd7 h7 Rd6 Ne7 Rd7 Rc1 e1B Rc2 Rd6 Re2 Rd7 Qe3 Beg3 Qf2 Rd6 Rb5 Rd7 Kc5 d4 Ba8 Bc2 Qc7 d3 Qd8 d2 Qc7 Nf7 h8Q d1N Nh7 Ne3 Qc3 Rd1 Qd7 Bd3 Kd4 Ng4 Rbe5 Ngh6 Qcc1 Nh8 Qc3 Bc1 Rd5 Bh4 Bc7 Bf4 Rde5 Bhg3
1B3R2/RNQB4/Qnr1r1bn/2r1P3/1k2K1RN/bq2p2b/r1Pb2R1/2N1B3 w - - 0 1 illegal: No proof kernel
2Nr1QB1/Q2b1Rr1/brq5/1n1P2pR/N2r2b1/1KN5/3P1RBN/B2nk1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Kd7 e4 Kd6 h4 Ke5 h6 Kd4 b6 g5 h7 a5 e5 c5 h5 f5 h6 f3 b7 c4 e6 a4 b5 f4 b6 c3 e7 a3 e8B a2 Bg2 Kd3 Bh3 c2 Nc3 Qc7 Bb2 c1R Rh2 Ra7 Rf2 Nc6 b8N Bc5 b7 Bg4 Bg2 Nd4 Bf7 Nb5 Na6 Ne7 b8N Rd8 h8Q Qc6 h7 Nf5 Nd7 Ne3 Bg8 Rb1 Nb6 Rg7 Nc8 Bb6 Qc1 Nd1 Qc2+ Kd4 Qb3 Kd3 Qa3 Bd7 Nc5+ Kc2 Rf1 f2+ Ke2 Ba7 Nf3 Bg4 N5a4 Bc5 Rh1 f1B+ Ke1 Be3 Rh5 Bg1 Nh2 f3 Qc5 Bd3 Qe7 Bdf5 Qa7 Rb7 Qg7 Bd7 h8R Kd3 Qf8 f2+ Kf1 Rb6 R8h7 Rc1 Rb1 a1R Rf7 Ra2 Ba1 Rcc2 Ne2 Rc4 Nec3 Rd4 Rc1 Nb2 Re1 Nd1 Re5 Kc2 Ref5 Kc1 Rf3 Rc2 Ke2 f1B+ Ke1 Ra2 Rf2 Ra3 Ne4 Rf3 Nec3 Rf6 Qe8 Rg6 Qf8 Rg7 Qe8 Ne3 R2f3 Na3 Qf8 Ba6 Rf2 Nb5 Bf3 Re4 Ke2 Rc4 Kd3 Rb4 Bg2 Re4 Na2+ Kd1 N2c3+ Ke1 R2f5 Nc4 Kc2 Ne3+ Kb3 Nd1 Rf2 Rd4
N1QnK3/3b4/Qb2B1R1/B1prR1Nq/P2B1Qb1/1kP5/N2nb2n/n4Nr1 w - - 0 1 illegal: No possible last move, all moves rejected
3nRrQ1/1B3N2/R2NQ1pQ/b2b2n1/2bk4/PQ2qP1B/1n4KB/b1r1n1R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 h4 Kf7 c4 Kf6 a3 Ke5 h6 b5 h7 d5 f6 b3 c6 b2 c5 g6 f7 b4 h5 d4 c7 d3 c6 d2+ Ke2 b3 Kf3 Bg7 f8R Be6 c8Q Qb6 h6 Kd4 c7 Nf6 Rh4+ Ne4 Nh3 Nc6 Qc2 d1N Nd2 b1B Ng5 b2 Nc4 Nd8 Qb3 Ba2 Nf7 b1N Kg2 Nd2 Re8 Nb2 Ncd6 Bd5 Qe6 Rf8 h8Q Rc8 h7 Nf3 Bf4 Neg5 Qg8 Be5 h8Q Ne1+ Kg3 Qc5 f3 Qc3 Rb1 Qe3 Bh3 Bf6 Qh6 Bg7 Qf5 e5 Qe6 e4 Rc1 Bf6 Rc6 Bh8 Ra6 Bf6 Rg4 Bg7 Qb4+ Bac4 Kh2 Qd3 Qb5 e3 Qb3 e2 Rg1 Qe3 Kg3 Ng2 Kh2 e1B Kh1 Ba5 Bh2 Rb8 c8B Ne1 Bb7 Rc8 Rg3 Bb5 Rg2 Rc1 Rg1 Bbc4 Bf4 Nd1 Qhh8 Kc5 Qh6 Ba1 Bg3 Kd4 Bh2 Nd3 Kg2 N1b2 Qf6+ Kc5 Qf5 Kd4 Qe6 Ne1+
k6b/1Nr2BRq/N1P4r/2nrnPBN/3b4/4r1pB/b2RbQ1K/4BQ1Q w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 h4 d5 f4 Kd7 Kf2 Kc7 Kg3 Kb7 c4 e5 b4 g5 f6 a5 h5 d4 b6 d3 f7 a4 h6 d2 h7 e4 b5 e3 Ne2 a3 Rh2 a2 Na3 Qf6 Bh3 Ra6 c6+ Ka8 b7+ Ka7 c7 Bg7 f8Q Ra5 c5 Nc6 b8N Ne5 c6 Be6 c8B Ka8 b6 Qg6 Qf1 d1B Nb5 Nf6 Nd6 Rd5 Na6 Nfd7 Nb7 Nc5 f5 Bf7 Nf4 e2 Nh5 e1R Rd2 Re3+ Kh2 Be2 Rb1 a1R Be6+ Be8 Bf7 g3+ Kg1 g2 Kh2 g4 Rb3 Rg8 h8Q Qh7 Qe7 Bd7 Qh4 Be6 Qhf2 Rc8 Rbb2 Rdd8 Rd7 Ba2 Bd2 Rd1 Be1 Rd6 Rd2 g1B+ Kh1 Ra3 Qe8 Ne6 Bg6 Ra4 Nbc5 Nf4 Qh2 Ned3 Qe4 Bh8 Rg7 Ne5 Bf7 Nfd3 Qe3 Ra3 b7+ Ka7 Qef4 Bd4 Q4f2 Rh6 Qhg1 Rdd6 Kh2 Rd5 Qh1 Rc3 Nb3 Nc5 Na5 Re3 b8B+ Ka8 Bd6 Ned7 Bf4 Ne5 Bg5 Rc7 Nb7 g3+
n1Q3N1/Q3r1PK/n1R1pBq1/r7/kn1B3n/bR1b3P/2Nb2B1/2N1R1Nb w - - 0 1 illegal: No possible last move, all moves rejected
1bB1R2b/1b2Pn2/3kb2n/rR5q/QN4P1/3nK1Rp/Q1n2Rr1/BBQ1N3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 c5 e4 h5 d4 f5 b4 a5 e5 f3 e6 c4 d6+ Ke8 d7+ Ke7 d5 a4 g6 h4 d6+ Kf6 g7 Ke5 b6 c3 b7 c2 e7 a3 b5 h3 b6 a2 Rh2 f4 Nc3 Nc6 b8R Qe8 d8Q Qf7 d7 Bb7 Qc8 Ra5 d8Q Qh5 Q8d2 Nh6 g8B Nd8 Bb2 c1N Bd3 Kd6 Be6 Bg7 Qa4 Rf8 Nd5 Be5 Bb1 Ndf7 Bd4 Bh8 Nb4 Be5 Qcc3 Rc8 Qcb3 Rc2 Re8 Bh8 Bc8 Nd3+ Kf1 f2 Ke2 f1N Rf2 Rb2 Nf3 Ne3 Ne1 Nc2 Qc1 f3+ Kd2 Bd5 b7 Be6 b8R Be5 Rh2 f2 Rb5 f1B Rf2 Bg2 Qc4 Bb7 Ke2 Na3+ Ke3 Bg3 Qcb3 Nc2+ Ke2 Qe5+ Qe3 Qf4 Nf3 Nh8 Rf1 Na3+ Bc2 Qf7 Rg1 Qh5 Raf1 a1B Ne1 N8f7 Qc1 Kc7 Qa2 Bh2 Ke3 Bd6 Bb1+ Rc2 Ba7 Bh8 Rg3 Bde5 Bc5 Rg2 Rf2 Bd6 Bd4+ Nc2+ Ke2 Bf4 Ba1 Bfe5 Na6+ Kc6 Kd2 Bc7 Nb4+ Kd6 Ke2 Bb8 Kd2 Nd4 Ke3 Nc2+
QR2Q3/b5k1/BPn4R/B4qBp/q6P/N2n1B1r/2nrqQ1N/K4nRn w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 exf4 cxd5 f3 Na3 f4 Nb1 Bf5 gxf5 Qd6 Ra3 Qe7 Ra1 Qd8 d4 Kf7 Kd2 a5 Kc2 g5 e4 c5 b4 h6 Kb2 a4 f6 c4 e5 f2 b6 f3 b7 g4 b5 g3 d6 g2 d5 Qe7 d7 Nc6 d6 Rd8 b8R a3+ Ka2 c3 e6+ Kg6 f7 c2 Qd5 Nf6 Bg5 Nh5 h3 Qf6 e7 Ng3 e8B Qf5 Qe4 Be7 f8Q+ Kh7 Bd3 f1Q Bh5 f2 Nf3 g1Q Nh2 Qe2 Bf3 f1N Qf4 Bf6 Qe8 Kg7 Qfe3 Bc3 Qf2 Bd4 Bc4 Ba7 Bd3 Rc8 d8Q Rc7 Qc8 Rd7 Qa6 Rd8 d7 Qg2 Rg1 Nh1 Qb7 Qgg4 Qa8 Qa4 h4 h5 Bc4 Rf8 Bd3 Rf6 Bc4 Rd6 Bd3 Rc8 d8B Rd4 Bc4 Rd2 Ba5 Rcd8 b6 R8d3 Ba6 Re3 Nc3 Red3 Rd1 c1N+ Ka1 a2 Nb1 Re3 Na3 Nd3 Bg2 Rh3 Bf3 Qag4 Rc1 Qa4 Rc5 Nf4 Re5 Nd3 Re6 Qff4 Rh6 Qf5 Nc2 Nde5 Kb2 a1N Kb1 Nd3 Na3 Nc2 Ka2 Nce3+ Ka1 Nc2+
5K1R/2N1RN2/nB1q2p1/rQ2B1PR/1q2N1bQ/3n1Bn1/P2r2nq/N4n1k w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 g6 h4 Ra7 b4 axb4 h5 Ra6 h6 Bg7 hxg7 Ra8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kg5 Ke4 g4 h5 f4 e5+ f6 b5 d4 c5 f5 b3 d6 b4 d5 b2 d7 h4 d6 b3 Qe2+ Kd5 Bg2+ e4 Be3 c4 Bb6 h3 Nf3 h2 Nbd2 b1Q Ne1 b2 Bf3 c3 Nc2 Nh6 g8R Qc7 d8Q Ra5 f7 Na6 f6 Nf5 f8N Ng3 d7 Qd6 f7 Rh7 Re1 h1Q Rh8 Rh2 Ne6 Ke5 f8B e3 Qf1 e2 Nc7 Rg2 Rh5 Qh2 Kh6+ Kf4 Kg7 Rf2 Qh4 Rg2 Nb4 c2 d8N c1N g5+ Bg4 Ne4 Nd3 Nf7 Rf2 Nc2 Rg2 Rc1 e1N Kg8 Re2 Bg7 Ng2 Re1 Rd2 Re2 Qe1 Rd1 b1N Na1 Qf2 Rc1 Qfd4 Re3 Q6b4 Qe2 Qdd6 Rh1 Rc2 Bgd4 Nd2 Bc3 Ndf1 Rh8 Ndc5 Qb5 Rd2 Bf6 Qe6 Kf8 Nd3+ Nc5 Qc6 Re7 Qd6 Be5+ Ke3 Rh5 Kf2 Rh8 Qg1 Rh3 Qh2 Rh5 Kg1 Ne4+ Kh1 Rh8 Nh5 Qg3 Nhf4 R3h5 Ne2 Qh4 Neg3
2R2bn1/4nr1N/r2P1Q2/R2QB3/Qr2NNB1/qQ1pqK2/3P1Rr1/1r4kq w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 axb5 f5 exf5 d4 Nc3 Be6 Nb1 Bd5 cxd5 Qd7 Qb3 Qd6 Qd1 Qd8 Ke2 Kd7 f4 Kd6 b4 e5 g4 h5 b6 a5 b7 c5 f6 h3 b5 d3+ Ke3 a4 g5 a3 g6 h4 b6 h2 f7 a2 g7 h3 f5 c4 f6 e4 Kf4 c3 Qb3 e3 Kf3 Ke5 d6 c2 Qa4 e2 Nc3 e1Q Be2 Rh7 Ne4 Nc6 b8Q Ra6 b7 Nce7 Bb2+ Kf5 Bc3 c1R Be5 Qa5 Bd1 Rb1 Ne2 Rab6 Nf4 R6b4 Rf1 h1R Rf2 h2 Qd8 Qa8 b8Q Rg1 Qbb5 Rg4 Qd5 Rg2 Qdb3 h1Q Qda5 Qc6 Qad5 Qc1 Be2 Qa3 Bd1 Nh6 g8R Qeg1 Rh8 Nhg8 Be2 Bh6 f8N Rf7 Nh7 Bf8 Bd1 Rb2 Rc1 a1R Rc5 Rab1 Be2 Rb6 Ra5 Ra6 Qd1 Rb5 Q1b3 Rb4 Ng6 Bh6 Nf4 Rf8 f7 Nf6 Rg8 Qe1 Rf1 Bg7 Ke3 Qg3+ Rf3 Kg4 Bd1 Qge1+ Be2 Kh4 Rf2 Bh6 Neg5 Kg3 Ne4+ Kh2 Rh8 Kg1 Rg8 Re8 f8Q Bg7 Qff7 Rf8 Qfe6 Rf7 Rc8 Nfg8 Qf6 Qd1 Bg4 Qe1+ Kf3 Bh6 Qa2 Bf8 Q2b3 Qe3+
5K1n/pnn2Q1q/3Nn3/NbnB1bkN/Pr3R2/P1b1B3/1Bq1R3/5QBR w - - 0 1 legal: proof: c4 f5 h4 b5 e4 g5 exf5 d5 cxd5 gxh4 a3 Na6 b3 Rb8 Nc3 Rb6 Nb1 Rg6 Rh3 Rg4 Rh1 Ra4 bxa4 Qd7 Qc2 Qd6 Qd1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 g4 c5 d4 h5 f4 c4 d6 c3 Kd5 c2 d7 b4 Nd2 h3 Bc4 h4 Ra2 b3 Qf1 h2 Ne2 e4 Bb2 c1N Ng3 Qe7 d8B e3 Bb6 h3 Kc6 e2 Bd5 e1N Nc4 Qe2 Na5 Ne7+ Kd6 Ncd3 Bc5 Bd7 g5+ Kg7 g6 Kh6 g7 Nc7 g8Q Nc2 f6 Bb5 f7 Bg7 f8B Ng6 f5 Kg5 f6 Rh4 f7 Nh8 Bb6 Nc5 Nh5 Qg2 Ke7 Nb7 Qh7 Be5 Bg7 Rf4 Bc1 b2 f8R b1B Be3 Qf2 Rf7 Bf6+ Kf8 Qg2 Rg1 h1Q Bc5 Qh2 Rh1 Qe4 Qg8 Qh7 Bg1 Rh4 Bb6 Be5 Rf4 Qg2 Qf7 h2 Bc4 Qe2 d5 Bc3 d6 Nd4 d7 Bf5 d8N Qc2 Bd5 Rg4 Ke7 Nde6 Bbe3 Qb1 Re2 Qd1 Ndc6 Qc2 Ne5 Rh4 Nec4 Rg4 Bgf2 Rh4 Nd6 Rg4 Rg1 h1N Bgd4 Ng3 Rh1 Ne4 Bg1 N4c5 Bg7 Be1 Bb2 Bc3 Bef2 Ned8 Kf8 Rh4 Rf3 Re4 Rf4 Rb4 Be3 Nde6+
Qq3b2/BPRp2n1/k4bbb/3NR1BB/3b4/N1qP1nQK/nB3r2/R3Q3 w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 f5 e4 g5 exf5 Bb7 a4 Bg7 h4 gxh4 b6 Bc8 b7 Ra6 b5 Rd6 b6 Rd5 Nh3 Rb5 axb5 a4 Ng1 Bf8 f4 e5 Kf2 c5 g4 h5 Kg2 e4 g5 e3 g6 h3+ Kg3 h2 f6 h4+ Kh3 a3 d3 e2 g7 e1B f5 c4 Kg2 a2 Bf4 c3 Ne2 h3+ Kf3 c2 Kg4 c1B Bd2 Ne7 g8R Ng6 Rg7 Nh4 Rg5 Na6 b8B Bf2 b7 Nb4 b6 Bd4 Qe1 Nf3 f7+ Ke7 Ba7 Kd6 b8B+ Kc5 Na3 Bb7 Nf4 Be4 Be5 Qb8 f6 Bg6 b7+ Kc6 Rg1 h1Q Nd5 h2 Be2 Rh4+ Kg3 Rf4 Kh3 Rf5 R1g4 Qf1+ Rg2 h1N Rh5 Qf2 Bg5 Ng3 Bd1 Qb2 Rc2+ Qc3 Be2 Bh6 f8Q Bf4 Qd8 Bf8 f7 Rf6 Qe8 Nf5 Qg3 Ng7 Bd1 Rf5 Bef6 Bd2 Qee1 Bc1 Be3 Rf4 Re5 Rf5 Beg5 Rf4 Nb1 Kb5 Na3+ Ka6 Be2 Qb2 Rc7 Qc3 Rb1 a1B Bd1 Bab2 Ra1 Na2 Be2 Bd6 f8Q Bd2 Qh8 Bf8 Qg8 Nh4 Bh5 Rf2 Qf7 Nf3 Qe7 Qe8 Qd8 Bdc1 Qa8 Qb8 Bh4 Bh6 Bhg5 Nf5 Bh8 Ng7 Ne3 Qd2 Nd5 Bdc5 Re7 Nf5 Be5 Ng7 Re8 Bce7 Bc3 Bf6 Re5 Qc1 Bb4 Bd4 Bc3 Qd2 Bb2 Qc3
n7/1qQ1rp2/1N1q2Qb/1NBr1K1B/Nqb2B1R/1b1Q1RB1/5P1P/1b1bk3 w - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 h5 gxh5 Nd7 dxc5 axb4 Be2 d4 Bc4 Nb6 Bf1 Nd5 exd5 Be6 Kd2 Bd7 Ke1 Bc8 Ke2 Kd7 Kd3 e5 Ke4 b5 c4 g5 a4 d3 h6 d2 h7 b3 c6+ Kd6 a5 Kc5 c7 Kb4 d6 g4 a6 g3 c5 g2 c6 b2 a7 Ne7 d7 Bh6 Bc4 Re8 h8B Ba6 c8N Nd5 c7 Nb6 Kf5 e4 Bd4 e3 Ra3 e2 Nc3 e1Q Be2 Re7 Nf3 g1Q Na4 Qg2 Rg1 b1B+ Qc2 d1B Qd3 Ba2 Bf4 Rb8 a8Q Bab3 Qae4 Na8 Ncb6 Qf8 Bg3 Rd8 c8Q Qc3 Qb8 Qc6 Qe6 Qd6 Be3 Qh1 Nd4 Qb7 Bh5 Qg8 Qc7 Qg4+ Kf6 Qge4 Bef4 Qe1 Kf5 Qc3 Qb1 Qd2 Nc5 Kc3 Qg6 b4 Qe4 Bc4 Nb5+ Kb2 Qf3 Kc2 Nca4 Qc3 Re1 Qb2 Re3 Kd2 Qd5+ Qd4 Rf3+ Ke1 Ra1 Ba2 Rc1 b3 Rcc3 Qd2 Qd3 b2 Rb3 b1B Rb4 Bcb3 Rc4 Q2b4 Rd4 Rde8 d8B Rd7 Bdg5 Ree7 Be3 Bc4 Rh4 Bab3 Bc5 Qf6+ Kg4 Rd4+ B5f4 Qd6 Kf5 Rd5+
3QR3/NBqb2bp/1kP2QRP/2q2n1K/5BB1/1qN2r1n/Q1n1R3/1Rb4b w - - 0 1 legal: proof: f4 c5 g4 e5 a4 a5 d4 b5 axb5 f5 fxe5 cxd4 Bg2 f4 Bf1 Ra6 Bg2 Rf6 Bf1 Rf5 gxf5 Ba6 Ra3 Bb7 Ra1 Bc8 Kf2 d5 Kf3 Kd7 Kg4 Kc7 h4 g5 c4 a4 e4 f3 b4 d3 c5 f2 h5 a3 c6 d2 e6 d4 e5 a2 h6 d3 f6 Bg7 f7 Na6 f8Q Qf6 b6+ Kb8 b5 Qe7 b7 Ka7 b8R Nc7 b6+ Ka6 b7 Qc5 Nf3 Ne7 Nd4 Bd7 Qb3 Nb5 Re8 Nf5 b8Q Na3 e7 Nc2 Qf6 Rf8 Kh5 g4 e6 d1Q Nb5 d2 N1c3 g3+ Be2 f1Q Bg4 g2 Rb1 a1B Qd8 g1N Na7 Qfb5 Qa2+ Qa5 Rh3 Qf3 Rg3 d1B Bf4 Bb2 Rg2 Qg3 Re2 Rf7 Rg8 Bc1 e8B Nh3 e7 Rf8 Bg6 Rf7 e8R Qaa3 Re1 Bf3 R1e2 Rf8 Bf7 Bh1 Be6 Qaa5 Qd5 Qc7 Qa2+ Ba3 Bc4+ Ka5 Bb5 Kb6 Ba6+ Bb2 Bb7 Rf7 Ncb5 Qb3 Nc3 Bc1 R8e6 Bh8 Rg6 Bg7 Re8 Re7 Rh2 Re3 Re2 Rf3
r7/1kP1r3/2r4r/2R1Qq2/qq3Q2/pb2B1BK/P1RQN1nQ/nB2n1NR w - - 0 1 illegal: No possible last move
3b1k1n/R1QQ3q/b2rq3/1bn1P1B1/nRQK2Rp/2N1Nq2/1Q1n2BP/1N6 w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 a5 cxd5 b5 axb5 Ra6 Ra2 Rf6 Ra3 exf4 Ra1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 h5 e4 g5 d4 c5 b4 a4 f6 g4 e5 h4 d6 g3+ Ke1 f2+ Ke2 a3 Kd3 g2 b6 a2 d5 c4+ Kd4 f3 b5 c3 b7 c2 b6 Nd7 b8Q Ba6 b7 Ne7 Ne2 g1Q Nec3 Qg6 Bg5 c1N Qe2 Rh6 Rg1 Nc5 Bg2 f1Q Qc4 f2 d7+ Kf7 Qc7 N1d3 b8Q Qe8 d8Q Nb2 Qdd7 Nba4 Qb2 Bg7 d6+ Kf8 f7 Bf6 Qdc6 Qf5 d7 Qh7 d8R Ng6 Q6d7 Nh8 Rb8 Bd8 Rb6 Qe6 Rb4 Kg7 f8N+ Kg8 Qd2 Qd1 Ng6 f1B Ne7+ Kf8 Ned5 Qf3 Qb2 Be2 Qcb3 Beb5 Qc4 Rf6 Re1 Rh6 Re4 Rg6 Ne3 Rf6 Nd2 Rg6 Rg4 Rh6 Rg1 a1N Ndb1 Bc8 Ncd5 Qef5 Qb8 Nc3 Na3 Rd6 Qbc7 Qff7 Rd1 Qe6 Rd3 Bb7 Nb1 Bc8 Ra4 Bb7 Ra7 N3a4 Rb3 Bc8 Rb4 Bca6 Qbe2 Ne4 Qb2 Nb3+ Kd3 Nbd2 Kd4 Rb6 Ndc3 Nec5 Qd3 Rc6 Qc4 Rd6+
3nr3/1N1P1BR1/1QN1Q1p1/3b2n1/1n1bnBPB/3kB1q1/4qR1R/Kb2q1Q1 w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 e5 h4 exf4 a4 a5 axb5 f6 h5 g6 h6 Ra6 Ra3 Re6 Ra4 Re7 Ra1 Rg7 hxg7 Qe7 Qa4 Qd7 Qd1 Qd8 e4 Ke7 d4 Kd6 Kd2 c5 Kc3 h5 g4 a4 b4 c4 Kb2 f3 b6 f2 b5 c3+ Ka2 h4 b7 a3 b6 c2 Nf3 h3 Rh2 f5 Ne5 f4 Nd2 f3 Nc6 Bf5 Bc4 f1N Nb3 f2 Be3 c1Q Nc5 Nd2 Qg1 Nf6 g8R f1Q Rg7 Qe2 Bb3 Qc3 Rf1 Qc7 Rff2 Nh7 Bc4 Qb4 Ka1 a2 Bb3 Ng5 Bc4 Nd7 b8Q Ne5 b7 Nef7 Qa7 Rg8 b8B Nd8 Qb6 Be7 Bb3 Re8 Nb7+ Kd7 e5 Bb1 d6 Nde4 d5 Qbe1 Rhg2 h2 Bc4 h1B e6+ Kc8 Rh2 Bf6+ Qb2 Bd4 e7 Rf8 e8Q Bg2 Qf7 Re8 Ba7 Qb8 d7+ Kc7 Qe6 Bh1 Bc5 Bf3 Bb4 Kb6 d6 Bg2 Bb3 Kb5 Bbd2 Qc7 Ne7 Qc3 Nc6 Bh1 Bf4 Qg3 Bde3 Nd2 Nb8 Bd5 Nc6 Nde4 Ne5 Ndf7 d8B Kb4 Be7 Nd8 Nc6+ Kb5 Bd1+ Kc4 d7 Kd3 Bf6 Ngf7 Bh4 Nfg5 Bd2 Be3 Qb6 Bc5 Bb3 Be3 Kb2 a1N Ba2 Nc2 Bb3 Bc5 Bde3 Nb4+ Ka1 Nf6 Ba2 Nfe4 Qe7 Bc4 Qe5 Bb5 Bg8 Bc4 Bf7 Bd5 Qe6 Bd4+
2NbQ1Q1/1B1KnN1r/1BRR4/QRqqnN2/n5pn/k1P3q1/2bR2P1/3b4 w - - 0 1 legal: proof: e4 c5 a4 a5 h4 g5 d4 cxd4 Nc3 f5 exf5 b5 axb5 g4 Nb1 Ra6 Kd2 Rg6 Ke1 Rg5 hxg5 Qb6 Kd2 Qc7 Ke1 Qd8 Kd2 e5 Kd3 Ke7 Ke4 Kd6 b4 h5 f4 h4 c3 d3 f6 d2 Kf5 e4 g6 e3 f7 a4 b6 a3 b5 Kc5 b7 h3 g7 a2 b6 e2 Na3 e1Q Ba6 h2 Qa4 d1Q Nb5 Qc7 Be3+ Qd4 Rd1 a1N Nf3 Qf1 Nh4 Qg1 Qa5 Rh6 Rd2 Be7 f8Q Nb3 Qe8 Nc6 b8N d5+ Nd7+ Kc4 b7 Bd8 b8R Nc5 Bb7 Kb3 Nd6 Rh7 Nf7 Na4 Ke6 Ka3 f5 Ne5 f6 Ne7 g8Q Qe1 Bf2 Qcc5 Nf5 Qee3 Rhd1 h1N Bg1 Qde4 Bf2 d4 Bg1 d3 Bf2 Qcc4+ Kd6 Qe1 Nb6 Ng3 Bd4 Bd7 Nc8 Bb5 Bb6 Qc5+ Ke6 Qed4 Rb1 Bc6 Rb5 Be4 Ra8 Qef2 Ra6 Qf4 N7d6 Qf3 f7 Qff2 f8R Qdd5+ Kf6 Qfe3 Rf7 Qf3 Rg7 Qfe3 Nf7 Qf4 Rg6 Qff2 Rdb2 d2 Rh6 d1B Rd2 Bec2 Rg6 Qdd4 Ke6 Qe1 Bc7 Qde4 Rad6 Qd3 Bb6 Qf3 Ne3 Ngf5 Rh6 Nh4 Nf5 Qeg3 Rf6 Nc4 Kd7 Qe4 Rc6 Qed5+ Rfd6 Ne5+
N1bk3K/QP3q1r/n2n1N1b/5b1b/BB1Q2pR/Bn3N2/2Q1q1P1/1Rq1Q3 w - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 a4 exf4 axb5 g5 Nc3 g4 Nb1 Ra6 Qa4 Rg6 Qd1 Rg5 hxg5 Bg7 Qc2 Bh6 Qd1 Bf8 Kf2 h5 e4 f5 d4 c5 b4 h4 e5 c4 d6 a4 d5 h3 d7+ Ke7 b6 c3 e6 h2 g6 c2 b5 a3 b7 f3 Kg3 f2 Kf4 a2 Kg5 f4 b6 f3 g7 Rh4 Kg6 Nc6 b8Q Rh5 b7 Rh8 Qa7 Nb4 Nd2 Qc7 Rb1 a1N Ba3 c1Q Nc4 Rh7 Qc2 Nh6 g8N+ Kd8 Nf6 Nf5 Nb6 Na6 Na8 Nd6 Bb5 f1B Ba4 f2 Nf3 Nb3 Bb4 Re7 Ba3 Bg7 Kh7 Bh6+ Kh8 Bb5 Bb4 f1B Ba3 Rg7 Bb4 Ke7 d8B+ Kf8 Ba3 Qf7 Ba5 Ke7 Be1 Kd8 Beb4 Nf5 d6 Be8 d7 Bd3 Re1 h1Q Rg1 Qhh5 Rh1 Nd6 Rh2 Ke7 Rh4 Qe5 d8Q+ Kf8 Qe3 Bf5 Qa7 Qe2 Qdb6 Ke7 Qd4 Kd8 Qdc4 Qee1 Q4c3 Qc7 Qcd4 Bh5 Nb6 Qc4 e7+ Kc7 e8Q Qf1 Qa2 Qf7 Qe1 Kd8 Na8 Qe2 Qc2 Rh7+
2rR1QB1/rBb1rQNN/1n2b1B1/PR5N/r1pq3q/7R/bKPk4/B4q2 w - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 a5 fxg5 Bc5 b4 axb4 h4 Bf8 g4 Bd6 g6 Be7 g7 Bf8 g5 Na6 g6 Nc5 Qd2 Ne4 Qd1 Ng5 hxg5 Qf6 Rh5 Qe7 Rh1 Qd8 Kd2 Ke7 e4 Ke6 a4 b5 a5 d5 Nf3 f5 Rh2 c5 Nc3 h5 Ra2 b3 Ne1 h4 Ba3 h3 Kc1 c4 Rh1 b4 Kb1 d4 Ng2 b2 Qh5 f4 Nd5 d3 Nf6 h2 Nh7 Ne7 g8R d2 g7 f3 g6 f2 Be2 Qd4 Bf3 Nd5 Nf4+ Kd7 e6+ Kd6 e5+ Kc5 e7 Ra7 e8Q Bd6 e6 Bc7 e7 Be6 Qf8 Kb5 Ra1 f1Q+ Ka2 b1R e8N d1R Bb2 Rbc1 Rb1 Re1 Ba1 b3+ Ka3 b2 Qhf5 Bf7 Nh5 Be6 Q5f7 Nb6 Bb7 Re5 Rg1 h1Q Rg3 Qhh4 Rh3 Re4 Ng5 Rh6 Nh7 Re5 Ka2 Rc5 Rh8 Kb4 g8B Rd1 g7 Rf6 Rh2 Kc3 Rh3+ Kd2 Q7e7 Rb5 Bf7 Qhe4 Bg6 Bg3 Qg8 Rf7 Qf6 Rc7 Qff7 Rbc5 Ka3 Re1 Ka2 Re3 Qgf8 Qh4 Q8e7 Rd7 Rf8 Rc8 g8B Bc7 Neg7 Rb3 Re8 Rb4 Qef8 Re7 Rd8 Bb8 Re1 Bc7 Re5 b1B+ Ka3 Ba2 Rg5 Qd7 Rb5 Ra4+ Kb2 Qdd4+
Q2b4/1r1P1QqR/KN2bRB1/2p1krrB/1q1n4/BN6/1RP1b1q1/N2R2r1 w - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f4 dxe4 fxg5 Nh6 h4 Ba6 g4 Qd6 g6 Qf4 g5 Bc8 h5 Qd6 Qf3 Nd7 Qd1 Ne5 g7 Ng6 hxg6 Ng8 Rh6 Qd7 Rh1 Qd8 Ke2 Kd7 b4 Ke6 d4 c5 b6 f5 b5 a5 b7 h5 b8N f4 b6 f3+ Kd2 h4 Kc3 a4 Kc4 a3 Kb5 f2 b7 e3 Qf3 e2 Nd7 e1R b8R h3 Be2 f1B Nd2 a2 Ba3 h2 Rd1 Nh6 g8R Rh7 g7 a1Q Qc6+ Kf5 d5 e5 d6 e4 g6 e3 Ngf3 Be7 Rf8+ Bf6 Rf7 Qg8 Nd4+ Kf4 Bd3 e2 Qb7 Ra7 Qa8 Nf5 Rb6 Rb7 Ka6 Qc3 Rb2 Bd8 Nb6 Ke5 Rf6 Be6 d7 Rh5 Be4 Qf7 g8B Rg5 g7 Qb4 Bf3 Qf8 Bh7 Qh8 g8Q Qg7 N4b3 Nd4 Na1 Rf5 Rg1 h1Q Ndb3 Rg5 Bg6 Qg2 Rdb1 Rc1 Rh1 e1R+ Be2 Red1 Rh7 Rd3 Bg4 Be2 B4h5 Rg1 Qf7 Rf5 Rd1 Rg3+ Rd3 Nb5 Rd2 Rgg5 Rd1 Nd4+
1r1rKQ2/1Rr1B3/N5Qb/1bpBrQ2/2P2qNN/P4rR1/3k1B2/n2Br1b1 w - - 0 1 illegal: No possible last move, all moves rejected
NB3b2/bBnR3n/3n1bb1/R4p1b/K1QQ1B2/1n2RPNQ/rQP1qk2/8 w - - 0 1 illegal: No possible last move, all moves rejected
N1bbnB1b/5rBb/2bR3n/1pK3Pk/B1RRq3/QP6/Q2q4/R1N2bN1 w - - 0 1 legal: proof: f4 d5 h4 b5 c4 e5 cxd5 exf4 a4 g5 hxg5 a6 a5 Ra7 Rh3 Rb7 Rh1 Rb6 axb6 a5 Kf2 c5 e4 h5 g4 f5 d4 Kf7 g6+ Kg7 e5 Kh6 g5+ Kg7 e6 f3 Ke3 a4 d6 c4 b7 a3 d7 f2 e7 a2 d5 f4+ Kd4 c3 d6 f3 Be2 f1B Qd3 c2 Kc5 f2 Nc3 h4 Bd1 h3 Nce2 h2 Qa3 Qe8 d8R Bg2 d7 f1B Be3 Rh5 Nc1 Be4 Bf4 Rh7 Bd6 Nh6 Be5+ Kg8 g7 Kf7 Bc3 Kg6 g8Q+ Bg7 Qgb3 Bh8 Bg7 Bed3 Bf8 Rf7 Qba4 Nc6 b8B Na5 Be5 Nc4 Beg7 Nd6 Q4b3 Rf3 Qd5 Kh5 Qdb3 Qg6 e8N Qe4 Nc7 Ne8 Qg8 Qg6 Na8 Qe4 Rb1 a1B Qga2 Bb7 Rc8 Bc6 d8R Bd7 Nb3 c1Q+ Bc2 Bg4 Rd6 Qd2 Nc1 Rf7 Ba4 Bf5 b3 Bf6 Rcd8 Bc8 Ra1 Bc2 Rd4 Bcd3 R8d6 Bd8 Nf3 Bb1 Rg1 h1B Rg4 Qee3 Ng1 Bh7 Rf4 Bc6 Rg4 Qee1 Rc4 Qh4 Rgd4 Qe4
4n2k/1q5q/1qq1B3/2NqRpBP/3bn1NR/1bRQK3/2Q1RP2/q1r1Q2B w - - 0 1 illegal: No possible last move
nNN4Q/Br6/p2rQ1nn/P1P1K1n1/2R1Q1Nb/bb4n1/8/1nBkBR1B w - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 gxf5 g4 Ba3 Qb6 Bb2 Qf6 Bc1 Qg5 hxg5 Kd7 Nf3 Kd8 Ng1 Ke8 Ke2 Kf7 Ke3 e5 a4 h5 f4 b5 c4 b4 d4 g3 f6 Ke6 f7 Kf5 c6 h4 a5 h3 c7 a6 d5 g2 g6 b3 d6 b2 g7 h2 d7 Nh6 g8Q Bc5+ Qd4 Ra7 d8B Ba3 f8B Be6 c8N Rb7 Ne2 g1N Bb4 Nh3 c5 Bb3 Bg2 Nd7 Nd2 b1N Bb6 Ng5 Nf3 Kg4 Ba7 Nb6 f5 Na8 Qe6 Rd8 Be1 Rd6 Rf1 h1N Ra2 Ng3 Rc2 Nh3 Qdd5 Nf4 Bh1 Ng6 f6+ Nhf5+ Kf2 e3+ Kg2 e4 Ned4 e2 f7 e3 f8Q Kf4 Qh8 Nh6 Rc4 Rb5 Qh5 Rb7 Ne5+ Ke4 Ng4+ Kd3 Bc3 e1B Kf3 e2 Q5e5 Bf2 Nc6 Kc2 Be1+ Kd1 Q5f5 Ne4 Nb8 Bh4 Ke3 Ng3 Qfe4 Rc6 Bed2+ e1N Kd4 Rcb6 Kd5 Rc6 Rf4 Nf3 Be1 Ng5 Rf1 Nf8 Kd4 Rd6+ Ke5 Ng6+
5B1R/q1NrQ1Bq/4r1B1/3Qb2b/N3p2B/R2RP2P/nr3q1K/r2qNk2 w - - 0 1 illegal: No possible last move
1KB4k/3R3n/1n1RP3/QR1q1Q2/1Q1npBr1/r3nB1q/N3P3/N1rQbr2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 Qe7 f5 Be6 fxe6 Qd8 Kf2 h5 Ke3 a5 Ke4 c5 d4 h3 b4 h4 g4 a4 d6 f5+ Kd5 a3 g5 f4 g6 h2 b6 e4 d7+ Ke7 b5 Kf6 b7 Kg7 b6 a2 Bg2 c4 Nf3 h3 Ne1 f3 Nc3 f2 Nc2 f1N Bf4 Rh7 Bf3 Qc7 d8Q Rh8 Qg5 Qc8 Qf5 Nd7 b8R Ne5 b7 Nd7 Rc1 a1N Na2 Nb3 Na1 Qe8 Kc6 c3 Kc7 c2 d5 Nb6 d6 Nf6 d7 Ra3 d8Q Bb4 Rg1 Kg8 g7 h1Q Q8d5 h2 Qa5 Rh5 Rg6 Kh7 g8B+ Kh8 Rg7 Nh7 Rd7 Ne3 Bf7 Rh4 Rb1 Bc3 Rbd8 c1R b8Q Nd4 Rb5 Rg4 Rd6 Qg2 R8d7 h1R Bg6 Qf8 Be8 Qh3 Qb7 Be1+ Kb8 Na8 Qbb6 Rf1 Qbc5 Qfh6 Qcb4 Q3h5 Rd8 Nb6 Bd7+ Qe8 Bc8 Qh3 R8d7 Qeh5 Qg6 Qe5 Qf5 Qd5
N5QB/1QrK2Bn/1pr4n/2bRP1r1/BP3n1B/r1k5/q1Nq4/1R3nNQ w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b6 a4 Nh6 a5 Ng8 a6 Bb7 axb7 Qf6 Na3 Qe7 Nb1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 a5 d4 c5 b4 g5 h4 c4 h6 a4 h5 a3 h7 c3 d6 g4 Kd5 a2 e4 c2 h6 g3 d7 f3 Bc4 g2 Bb2 c1N Bb5 f2 Rh5 f1N Ba4 Bc5 Na3 Ne2 Rb1 a1Q Qb3 Qa2 Nc2 Na6 Kc6 Nc7 b8N Ne6 Rd5 N2f4 Na6 Nf8 Qf3 Ke6 Bc3 f5 Nc7+ Kf6 Ba1 Ra6 Na8 Ra7 Nh3 g1R Qh1 Rg5 Ng1 Nh5 Bc3 f4 e5+ Ke6 Be1 f3 Bf2 Nf4 Bh4 Qf6 d8Q f2 Qc7 Qd8 Qb7 Kf5 Qh3+ Ke4 Qh2 Kd3 Qh1 Qe8+ Kc7 Qh5 Kd8 Kc3 Kc8 Qd1 Kc7 Nf6 Kc8 Rhg8 h8B Ng4 h7 Qd2 Bg7 Nh6 h8B Nh7+ Kc7 Rc8+ Kd7 Be7 Ra5 Bc5 d5 Ng3 d6 f1R Rb5 Rc1 Ra5 Nf1 Rb5 Be3 Rd5 Rc6 Ke8 Ra6 d7 Bc5 d8Q Ra7 Kd7 Ra5 Bb3 Ra3 Qg8 Rc8 Nf3 Bd6 Ncd4 Kd3 Ng1 R1c6 Nc2+ Kc3 Ba4 Bf8 Qa7 Bc5 Qb7 R8c7+
q1QR4/4B1BQ/NR2B3/Qbqn2bb/p3K1Nb/7q/Pr2k2P/Q1qn3N w - - 0 1 legal: proof: f4 b5 b4 c5 bxc5 d5 e4 a5 g4 e5 Nf3 h5 gxh5 Ra7 Ng1 Re7 Nc3 dxe4 Nb1 e3 Ke2 e4 Ke1 Re5 fxe5 Qd5 Qf3 Qd6 Qd1 Qd8 Ke2 Kd7 d4 Ke6 c4 Kf5 c6 Kf4 h6 g5 e6 f5 c7 g4 c5 b4 d5 b3 c6 a4 d6 b2 d7 g3 h7 g2 e7 Na6 e8Q Ne7 Nc3 b1Q Nb5 Qb3 Bb2 Nd5 Qh5 Nab4 Rb1 Nc2 Bg7 Be7 Nf3 g1Q Ne5 Bg5 Bh3 Bb7 Qd3 Qa8 Ng4 Rb8 c8Q Ba6 Nc7 Bb5 h8Q Qf2+ Kd1 Kf3 d8B f4 Na6 Qa3 Qf1 e2+ Kd2 Nce3 c7 Nd1 Be7 e3+ Kc2 Be8 Rb6 Rb7 Q5h7 Bh5 Qhd8 Qc5+ Kd3 e1B Rg1 e2 Rh1 Rb8 Qg1 Qg2 Qd4 Bd2 Qa1 Be1 Rg1 Beh4 Rh1 N1e3 Rd1 e1Q Rd2 Qec1 Rd1 Q5a3+ Kd4 Ke2 Rd3 f3 Ke4 Nb4+ Qd5 Rb7 Qa5 Nd1 Rd8 Qf1 Qb8 f2 c8N Qac3 Nd6 Nd5 Qc8 Qc5 Nf5 Qg2+ Ke5 f1B Ng3+ Kf3 Nh1 Bb5 Kf5 Ke2 Ke5 Qf1 Ke4 Rb8 Ne5 Rb7 Be6 Qh3 Ng4 Bd7 Rd6 Rb2 Rb6 Bb5
1RNR4/3brpBK/2b2b2/1R3P1k/QPN2r1n/RBQrbN2/3r2Qr/2n5 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 c6 e4 Ba6 h4 gxh4 d4 Qb6 d6 Kd7 e5 Ke6 d7 Qc7 d5+ Kf5 Ke2 Bc8 Ke1 Qd6 exd6 Kf6 Kd2 Kg6 Ke3 e5 Ke4 a5 d8R h5 b4 a4 g4 c5 f4 a3 g5 c4 d7 c3 d6 a2 b6 h3 b7 c2 Bc4 h2 Ba3 c1R Qd4 h4 f5+ Kh5 g6 h3 g7 Na6 b8N Ne7 g8Q Rc3 Nd2 Bh6 Ngf3 Ng6 Rhd1 h1B Bb2 h2 Bb3 Rd3 Nc4 Be3 Qc3 Nh4 Nc6 Bg2 Rf8 h1R d8Q Rh2 Qa5 Bd7 Qa4 Rd8 Ne7 Rh7 Nc8 Bh1 Rac1 a1B Rg1 Rhd2 Rg3 Re8 Rh3 Re7 Qg2 Rh8 Na7 Rh6 Rb8 Rh7 Nc8 Rh8 Nd4 Nc5+ Kd5 e4 Rd1 Be6+ Ke5 Bd7+ Kf6 Rh6+ Kg7 Rh8 Ba2 Nb3 Nf3 Nc1 Bb3 Rh6 Kg8 Rh7 Qc2 Rh6 Bg7 Bf6 Qb2 Ba7 Qe5 e3 Qc3 e2 Rb5 e1R Rb8 Be8 d7 R1e4 d8R Rf4 Re1 Bc5 Re5 Be3 Ra5 Bd7 Rab5 Rg6 Kh7 Rg5 Qg1 Rgg2 Rg3 Rh2 Qg2 Bc5 Rh3 Be3 Nfe5 Be6 Qe2+ Kg5 Qca1 Bf2 Bc2 Rdd7 Ra3 Bc6 Qc3 R7d3 Bb3 Bed7 Nf3+ Kh5 Qf1 Ba7 Qg2 Be3
q1B1Kb2/bQn1Qr2/N4rR1/3N2N1/2b1n1QB/rP2B1pQ/1R3Pp1/1n2k3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 a5 h4 g6 h5 g3 h6 c4 b3 a4 h7 a3 d6 a2 b6 c3 b7 c2 d7 g2 d5 Ra3 d6 Na6 b8N Nc7 Nc3 Ba6 Be3 c1R Rb1 a1B Nf3 Bc4 Na6 Qa8 d8Q g5+ Kg4 Rc2 Kh5 g4 d7 g3 Qc8 e5 Qb7 e4 Ng5 Ke5 Kg6 Nf6 Nd5 Bd4 Kf7 Ba7 d8B Rg8 h8Q Rg6 Rh6 Rd2 Bc5 e3 Qg4 e2 Be3 e1N Rb2 Nf3 Qh7 Ne4 f6 Rd1 Be2 Nfd2 Bf3 Nb5 Ke8 Nb1 f7 Rf6 Rg6 Rh1 Qh8 Rh7 Bd1 Rg7 Qhh3 Rh7 Bf4+ Kd4 Be3+ Kd3 Bf3 Bfc5 f8Q Rhf7 Qfe7 Bb4 Qf4 Bd6 Bg4 Bdc5 Bc8 Bb4 Bd2 Ke2 Be3+ Ke1 Qfg4 Rf5 Qe6 Bf8 Bf6 Rf4 Qee7 Rf5 Nh7 Rf4 Bh4 R4f6 Ng5 Nc7+
R3N2K/7R/1N1r1PrP/bbn2r1b/1Q1BN1pp/n1q1Q3/3Q2Q1/k1Bn3B w - - 0 1 illegal: No proof kernel
3BBrk1/1Q4b1/r1NPp3/1n1N3N/bp2KR2/B4n2/1P1B2R1/1rbnqQ1Q w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 Nc6 c4 Nb4 cxd5 Nxa2 Ke2 Kf7 Kd3 b5 h4 g5 f4 c5 f6 a5 h6 e6 f5 a4 h7 a3 h5 c4+ Ke4 g4 d4 c3 d6 g3 h6 c2 d7 g2 d5 Qc7 d8N+ Ke8 f7+ Ke7 f6+ Kd6 Ne2 g1N Rh4 Qb6 Ng3 Bb7 Rf4 Bc6 Bd2 c1B Nh5 Ra7 Nc3 Bd7 Qb3 Qf2 Nc6 Bg7 f8B+ Ne7 f7 Ra6 Rb1 Rg8 h8Q Nf3 h7 Be8 Bc4 Qe1+ Be2 Kd7 Qb4 Nc8 Bd6 Qd1 f8Q Qe1 Bc5 Na7 d6 Qd1 Nd5 Qe1 Qf5 Rf8 Qb3 Bd4 Qh3 Bg7 Qf1 Nc3+ Kd3 a2 Ba3 Nd1 Ke4 a1R Qb4 Ne3 Bd1 Qg3 Ba4 Nd1 Qb3 Nd4 Qbf3 b4 Q3h1 Nab5 Qg8 Ra2 h8B Ra1 Qh7 Qg1 Qg6 Nf3 Qgg2 Bh6 Bf6 Bg7 Bg5 Qf2 Bd8 Qe1+ Be3 Bd2 Rc1 Rb1 Rc2 Bc1 Re2 Bf7 Bd2 Ke8 Bb6 Rh8 Bd8 Kf8 Qg5 Kg8 Qe7 Be8 Qb7 Kh7 Bb6 Rf8 Bd8 Qh4 Rh2 Kg8 Rg2 Qe1+ Be3 Bd2 Nd4 Na7 Bd7 Bc1 Bb5 Qg3 Bd2 Qf2 Be2 Ba4 Bb5 Qh4 Be8 Nb5 Nc6 Qe1+
3R4/qR3Nr1/1bPQ2K1/B1rQ1p2/R1nR2Q1/3BNN2/bb1pPkn1/4n2r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 Kf5 a5 b4 g5 h4 d3 c4+ Kd4 c5 d5+ e6 a4 c6 a3 h6 d2 b6 Ke3 b5 f6 b7 a2 h5 d4 h7 g4 b6 d3 h6 g3 Na3 g2 Nc4+ Kf2 Rh4 Ra5+ Kg6 f5 e7 Rc5 e8R Nd7 b8R Ngf6 b7 Bg7 Ne3 Qb6 Rd4 Qa7 Rd8 Nd5 Nf3 g1B Bg2 N7b6 Qb3 d1N Bd2 Be6 Ba5 Nb4 Qd5 d2 Bh1 Nc4 Bg2 Re8 h8Q Nc2 h7 Re7 Qg8 Ne1 h8N Be5 Bh1 Rh7 Nf7 Bf6 N3e5 Bh8 Be4 Bf6 Nf3 Bg7 Rb1 a1R Ra8 Be5 b8Q Bf6 Nc2 Nde3 Rb7 N3g2 Ne3 Bg7 Qbd6 Rb1 Rd3 Bb2 Rd4 Rb5 Qe8 Nc2 Q5c5 Qa6 Nd1+ Kf1 Rd3 N4a3 Bb4 Ba2 Qcd5 Bb6 Ne3+ Kf2 Rd4 Rc5 Bd3 Nc4 Qee4 Rbh1 Qg4 Nce1 Bc3 Qa7 Bb4 Qb8 Ra4 Qa7 Ba5 Rg7+
r1Q2nb1/4r2N/2P2P2/p1R2qb1/r2QBQR1/kNb5/Np2RK1n/B4nR1 w - - 0 1 illegal: No proof kernel
1nb5/KR2rRN1/QQp1r1PN/1P1k3q/1pr1NRB1/b3n2Q/3B2R1/2b2n2 w - - 0 1 illegal: No proof kernel
2r5/4K1pB/NnqQ1n1Q/N1RP2r1/1r3BNP/n3Rp2/b1R2bb1/1N1kB3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 e4 c5 h4 f5 h6 a4 b6 a3 h7 a2 b7 f3 d6 c4 d7 c3 Ke6 c2 e5 Kb3 Bf4 f2 Rh2 Ra3 Nh3 Nh6 Bd3 f1B Nf2 Bg2 Ng4 Rg8 h8Q Nf7 Qh6 Ra5 Bd2 f4 Bh7 f3 Be1 Nd6 Qd3+ Ka4 b4 c1R b5 Rc4 b6 Ne4 Kf7 Nf6 e6 Re5 e7 Qc7 e8R Qc6 d8N Nbd7 b8B Rg5 b7 Rb4 Re3 Nb6 Bf4 Bc5 b8N Bd7 Nb7 Rc8 Na5 Bf5 Bd6 Be6+ Ke7 Bc4 d5 Bd4 Bf4 Bb3 Re5 Bf2 Re3 Bc4 Qdg6 Bb3 Nd2 Bc4 Rb1 a1N Rc1 Ba2 Rc5 Nc2 Na6 Na3 Nb1 Nac4 Nc3+ Ka3 Nb1+ Kb2 Qgh5 Kc1 Q5g6 Ne4 Qd6 Nf6 Rb3+ Kd1 Re3 Bh3 Rg2 Na3 Rh2 Bg1 Rhe2 Bg2 Rec2 Bf2
1K3b2/rN1k1P1b/2b1q1B1/N4R1Q/2p2r2/BRr1np2/2P1BQQQ/Nn4n1 w - - 0 1 illegal: No proof kernel
1N1Q4/1BbbP1N1/2bB1Pnn/Qn1pr1qN/3RQ1B1/1Nr1p3/5r1k/1RK5 w - - 0 1 illegal: No proof kernel
2Q2bR1/1K1bP2p/6R1/rB2rB2/b1qnNN2/kPN3nr/4nBpR/5R1Q w - - 0 1 illegal: No proof kernel
bB2K2N/1rqPrn2/1BpR3Q/1k1n2N1/1N5b/B1b5/BQQ3Pp/3r1nR1 w - - 0 1 illegal: No possible last move, all moves rejected
4kr2/2rqr3/5BR1/2KnnnQB/8/1R1bNp2/2pNPPQb/2Qq1RNR w - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 g5 a4 d5 cxd5 Na6 axb5 Nb8 h4 gxh4 Kd2 h5 Ke3 a5 Kd4 f5 g4 f4 b4 c6 d6 a4 e6 a3 b6 a2 g5 h3 e7 h2 b7 f3 b5 h4 b6 Bh6 g6 Nd7 b8R Ba6 b7 Bd3 g7 Ne5 Bb2 Nf6 Nd2 Bf4 Kc5 Ra7 Bh3 Nd5 Bg4 Rf8 g8Q Qc8 Rb1 a1R Qc1 R1a2 Bc3 Rc2 Ra8 Qd8 b8R Rc7 Qg7 Rb2 Rba1 Rbb7 R8a6 Ra7 Rb3 Qd7 Be6 Rab7 Qg2 Bg3 Bg4 Ra7 Nh3 Bf4 Rf1 h1N Ng1 h3 Rab6 h2 Bh5+ Bg6 Rba6 Ng3 Bb2 h1Q Bd4 Nc4 Bf6 Nf5 Rab1 Bh2 Rba1 Kf7 e8N Ne5 Ng7 Rab7 Ne6 Ke8 Nd4 Qg7 Nc2 Re7 R6a4 Rbc7 Rg4 Qf7 Ne3 Bh7 Rg6 Qe6 Nh3 Qd7 Rd1 Qf1 Ng1 Qe1 Ndc4 Qd2 Rf1 Qd1 Nd2 Nc3 Kb6 c5 Rab1 c4 Ra1 Ra7 Kc5 Nd5 Rab1 c3 Ra1 c2 Rab1 Qe6 d7+ Kf7 d8Q Qd7 Qa5 Ke8 Qb4 Ra6 Qh4 Ra7 Qhg5 Bg8 Qb2 Nc3 Re1 Bc4 Nh3 Bd3 Rh1 Qe1 Ng1 Nd5 Rd1 Qf1 Qc1 Qe1 Ne4 Qd2 Rf1 Qd1 Nd2 Rc7#
3Q1K2/1B2RQq1/1r1bN3/3b2B1/2q1b1n1/BNRpnR2/PP1R1rp1/4qN1k w - - 0 1 illegal: No proof kernel
1RN4N/B1qRK1k1/2B1Q3/Q1Nn3b/1R1pq2r/nP4b1/P2n3p/BRr3r1 w - - 0 1 illegal: No proof kernel
1Q1bBq1b/nb2B3/2Q2K1N/2R1rBnN/1PR4q/1B1N4/P4pRp/k5rq w - - 0 1 illegal: No possible last move
qRN1Rqk1/2bb1Nr1/4n1Bn/n7/P1pBQp2/3QBR2/3Pq2K/N4rR1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 c5 Kg3 f5 e4 Kf7 h4 g5 a4 b5 e6+ Kg7 e5 c4 h6+ Kh7 d6 g4 e7 b3 e8R b2 d7 b4 e6 b3 e7 f4+ Kh2 Ra7 h5 Qa5 d8Q Rb7 Na3 b1Q Bb2 Qd3 Qe1 Qdc3 Nh3 Qc1 Nc2 Qd1 Ra3 Qa8 Na1 Bd7 Bd4 b2 Rf3 b1Q Rg1 Qf5 Bd3 Nc6 Qe4 Na5 Be3 Qe2+ Nf2 Bg7 Rf8 Bd4 e8R Be5 Bc2 Bc7 Bb1 Bc8 Qdd3 Bd7 Bc2 Rb1 Rb8 Rf1 Rfe8 Ne7 Bb1 Rg8 Bc2 Kh8 h7 Qf8 Bb1 Kg7 h8N Nf5 h6+ Kh7 Nf7 g3+ Kh3 g2 Kh2 Rg5 Bc2 Kg8 h7+ Kg7 h8B+ Kg8 Bhd4 Nh6 Ng4 Rg6 Nge5 Rg7 Nc6 Qa6 Rh1 Qa8 Na7 g1N+ Rf2 Qg4 Nc8 Nh3 Rg1 Ng5 Rf3 Ne6 Bd1 Re1 Be2 Rb1 Bf1 Qh5+ Bh3 Qe5 Bf5 Rf1 Bg6 Qh5+ Rh3 Qd1 Rf3 Qe2+
2K2NrN/1Br5/nQB1Bb2/n1Q2R1p/1PBn1p1P/Q4bR1/R2q4/3r2qk w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 d5 c4 Na6 cxd5 Be6 b3 Nb8 Bb2 Bf5 Bd4 Bc8 fxe5 g6 Be3 g5 Bf4 gxf4 Kf2 Kd7 Kf3 f5 h4 c5 g4 a5 d4 h5 e4 a4 g5 a3 d6 Ke6 d7 a2 d5+ Ke7 d6+ Ke6 b4 c4 g6 c3 b6 c2 b7 c1N g7 Qe8 d8R Qe7 d7 Qf7 Ne2 Qg6 Rh3 Ra4 Qd3 Qh7 Nbc3 Nh6 g8B+ Nf7 Nb5 Ra5 Rg3 Ra6 Ned4+ Ke7 e6 Kf6 e7 Ke5 e8B Rc6 Nd6 Rc5 Qa3 Ne2 Ne6 Be7 Nf8 Kd4 e5 Qg6 e6 Bf6 e7 Na6 b8Q Qg5 Qb5 Bb7+ Qc6 Rc4 Ra8 Nd8 Be6 Qh6 Nf7 Rg8 Nh8 Ke5 Rd1 a1R Bg6 Rac1 e8B Rb1 Rd2 Rd1 Ra2 Rcc1 Bg2 Qg5 Bgf7 Nd4+ Kf2 f3 Qc5+ Kf4 Rc8 N8c6 d8Q Rc3 Qdb6 Na5 Bc6 Rcc1 Bc4 Qh6 Bfe6 Ba8 Rd8 Rc3 Rd5 Ke4 Rg6 Qd2+ Kg3 Ke3 Bh1 f2 Be4 f1Q Bb7 Qc2 Re5 Qg1+ Bg2+ Kd2+ Kf4 Qb2 Bge4 Ke1 Bec6+ Kf2 Rg3 Rcc1 Rf3+ Kg2 Rg3+ Kh2 Rd5 Qbg2 Re5 Kh1 Rd5 Be7 Ke5 Bf6+ Kd6 f4 Kd7 Qd2 Kc8 Qb2 Bcd7 Qc3 Qcd6 Qd3 Rf5+ Qg2 Bf3 Nac6 Bb5 Qd2 Bf1 Rc5 Bfc4 Na5+ Qdc7 Rd5 Bdb5 Rd7 Qcc5 Be4 Bcd5 Rh7 Bb7 Bd5 Bfe2 Qg1 Bec4 Bf3 B5c6 Rc7+
1r1KB3/n4N1R/5QBR/B1n2Pp1/1B1p1N2/q3n1qb/1rk3rP/Q1b1Q1R1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 d5 b4 g5 c4 a5 b6 d3 f6 a4 f7 d4 b7 d2 b5 a3 b6 a2 h6 Nd7+ Kc6 e5 b8R Qf6+ Kc7 Ra3 h7 Ra8 b7 Be7 f8B Bb4 c5 Qd6+ Kd8 Qa6 c6 Qe2 c7 Kd3 Nh3 e4 Nc3 e3 Qe1 d1R Bd2 Nh6 Ne4 Ng4 Nd6 Rb1 Nf7 Ba3 Rg1 Nc5 Ba5 Kc2 Bg2 Bc1 Bc6 Ra7 Be8 Rb2 Rb1 Bd7 c8B a1N Bd6 Rf8 h8Q Qa6 Qf6 e2 Ra8 Qd3 b8Q Ne5 Bb7 Ra6 Ra7 Qa3 Qa8 Bg4 f5 Rh8 Nf4 Bh3 Bf3 Nc6+ Kc7 Rab6 Bh5 Ra2 Be7 Rbb2 Bg6 Rf8 Rb7 Na7 Kd8 Rh8 Rg4 Rg8 Rh4 Rf8 Rh6 Rh8 Qh1 e1Q Rd7 Qeg3 Qe1 Nab3 Bd6 Nd2 Bf8 Nf1 Ra1 Nd3 Bfb4 Ne3 Kc7 Bd2 Nd6 Qa4 Qb1+ Kb3 Qah1 Rf8 Rdh7 Nc5 Nf7 Qa3 Bc6 Rb8 Qbd1+ Rc2 Be8 Rb2 Qe2 Rb5 Kd8 Rb6 Rf1 Rb5 Qd1 Rb6 Qa1 Bc1 Qg1 Rg2 Qf2 Rb7 Qe1 Kc2 Rg1 Rb8+
3R4/1q1bk3/NQ3NnR/3r1pK1/3Qq3/2pR2RP/Qr1nB1Pb/1rN1B2b w - - 0 1 illegal: No proof kernel
1q2NB1B/Qb3k2/4N3/b2rBp1b/PRK1QQqn/3r3p/1Q1Nq1RP/5n2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 f4 g6 f6 Ra7 f5 Bg7 f7+ Kd7 f6 Bf8 Bd3 Ra8 Bf5+ gxf5 Ke2 e5 Kd3 b5 a4 c5 g4 h5 d6 Ke6 d7 b4 g5 e4+ Kc4 h4 d4 h3 g6 b3 a6 e3 d5+ Ke5 a7 e2 g7 e1Q d6 Ke6 Qd3 b2 Ne2 Na6 Bf4 Nc7 Rg1 Ne7 g8N Ncd5 Be5 Bb7 Qe4 Qb8 d8Q Ng6 d7 Nh4 Nd2 b1B Rg2 Bc2 Qc7 Bd1 d8Q Bd6 f8B Ne3+ Kd3 Qg1 f7 Nf1 Bfg7 c4+ Kc3 Bc5 f8B Bb6 Rb1 Ba5+ Rb4 Rh6 Qcd6+ Kf7 Nd4 Bh5 Q8b6 Rg6 Nf6 Rg3+ Qe3 Qf2 Bh8 Qe2 Ne6 Rf3 Kd4 c3 Qe4 c2 Ne8 Rd3+ Kc4 Qg4 Qbd4 c1Q+ Qc3 Qcd1 Qb2 Qde2 Qdd4 Qd6 Qf2 Qb6 Qff4 Rad8 a8Q R8d5 Qb8 Qd8 Qa7 Qb8
1K1Q3B/rr2q1Q1/b1B1N3/2PRq2n/2P3Nq/nR3p1k/BB1bR2p/Q2b4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 a5 b4 f3 b6 a4 b5 f2 b7 a3 g6 d6 g5 a2 g7 h4 g6 h3 b6 h2 Bb2 f6 Na3 Nc6 b8Q Nce7 b7 Nc6 Nf3 Qe8 Bg2 f1Q Nb5 Rh6 Nbd4+ Kd7+ Kd5 f5 e4 f4 e5 Ra7 Rb1 a1Q Ne6 Na5 Qc1 Qf2 Rd1 Rh7 c3 Nh6 g8B Nc4 g7 Qh4 Qa8 Be7 b8B Na3 Bf7 Bf6 g8Q Qe7 Qg7 Ng8 Qd2 Ba6 Qd4 Kc8 Kc6 Bg5 Qa4 Nf6 Rd5 Rc7+ Kb6 Nh5 Qa5 Bb7 Ka7 Kd7 Bg8 Rc6 Bc7 Ba6 Kb8 Bh6 Bd8 Rc7 Qb6 Qf7 Bf6 Qe7 Ng1 Bg5 Nh3 Ra7 Be4 f3 Nf2 Bd2 Ng4 Rc7 Bc1 Ra7 Rb3 Rc7 Bb2 Qae1 Rd3 d5 Qa5 d4 Qa4+ Nb5 Qa1 Na3 Bd5 Bc1 Rd2 d3 Re2 d2 Bb7 d1B Be4 Ke8 Bc6+ Qd7 Rd2 Qeg3 Rd5 Bd2 Qh6 Rf7 Bh8 Ke7 Qg7 Qd6 c4 Qf4 Bh7 Qe3 Bb1 Qeg5 Nd4 Qdf6 e6 Qfe5 Ba2 Qee3 Ne5 Rd7 Qb7 Qf5 Qb6 Ra7 Qh6 Rg7 Qh7 Kf6 e7 Kg5 e8R Kf4 Qa5 Kg3 Ng4 Kh3 Qd8 Rgc7 Qg7 Qf7 Re4 Qfe7 Ne6 Q3g5 Ree3 Qe5 Re2 Rcb7+
r5R1/N4QQ1/Kn2q2r/2PR1p2/R1Pq1pB1/q2b2bR/1Qn2kB1/2B2Nr1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kd2 Ke7 Kc3 Kf6 Kc4 Ke5 h4 Ke4 b4 f5 b6 d5+ Kb5 a5 c4 g5 b7 a4 h6 d4 h7 d3 h5 g4 h6 d2 Nf3 Ke3 Nd4 g3 Rh3 a3 Bg2 a2 Nc6 Kf2 e4 Qd5 e5 Bd7 e6 Qe4 e7 Ke3 e8B Bg7 Qh5 Qe5 Qf7 Na6 b8R Nf6 Rd8 Kf2 Ka5 d1Q b5 Qg1 b6 Nb4+ Na7 Nfd5 b7 Nc2 b8R Bc6 Nd2 Nb6 Rd5 Bf6 Nf1 Qe6 Ka6 Bh4 Rbd8 Ba4 Bc6 Bb3 Rg8 Ba4 Bf3 g2 Bg4 Bg3 Rf8 Rg8 h8Q Rg6 h7 Rh6 Qhg7 Bb3 h8Q Ba4 Rb1 a1Q Rg8 Qa3 Rb4 Bb3+ Ra4 Ba2 Qb2 Bb1 Ne3 Qd1 Nf1 g1R Qhg7 Qd4 Rdd8 Qe7 Bg2 Qee4 Rd5 Qe6 Qb4 Ne1 Qb3 Bd3 Qb2+ Nc2
Q2b2n1/6BR/8/2pNr1k1/nPq1Rr2/QNn2PK1/2pNbB1N/q1QB1b2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 g4 Kf7 d4 e5 b4 a5 d5 h5 f6 Kg6 b6 c5 f7 a4 b7 h4 d6 c3 d7 h3 Be2 c2 Nd2 a3 Ngf3 e4 Nh2 a2 f3 Ra4 Kf2 e3+ Kg3 Nc6 b8N Na7 Nc6 Bh6 f8B Ra6 Bg7 Nb5 Na5 Rf6 Nab3 Rf4 Bcb2 Qb6 d8Q Qe6 Bbd4 Ba6 Qa8 Qc4 Qc1 Nc3 Bd1 e2 Bf2 e1N Rb1 Bb5 Qaa3 Nd3 Re1 Nb2 Re4 Nba4 Ra1 Rf5 Rb1 Re5 Ra1 Kf7 g6+ Ke7 Rb1 a1Q g5 Ke6 Bf8 Kf5 g7 Ba6 g6 Rh7 Be1 Bg5 Bf2 Nh6 g8Q Bd8 g7 Kg5 Qd5 Ng8 Qc6 Rh4 Qa8 Ne7 g8N Rf4 Nf6 Ng8 Bg7 Bb5 Nhg4 h2 Nd5 h1B Nh2 Bg2 Rb2 Qd4 Ra2 Bgf1 Qab2 Nb6 Ra7 Bbe2 Qa3 Qc4 Bf8 Qd4 Rh7 Qc4 Bg7 Nba4
2QQ4/2R1N1R1/K5bP/B1b1pq2/3R1nQ1/2r1rn2/1PN1n1Np/b2Q1Bkq w - - 0 1 illegal: No proof kernel
4Nb2/BqN2b1K/n2R2P1/2q2Nr1/R5QN/PBRQr1r1/2p4p/2kn2qB w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 h5 d4+ Kb6 f4 Ka5 g6 e5 g7 b5 d6 c5 d5 c4 g5 b3 d7 Ka4 f6 c3 Kf5 e4 Kg6 b4 f7 c2 f5 b2 f6 e3 d6 b3 Rh3 h4 Nf3 e2 Nd4 e1Q Nd2 Ka3 N2f3 Ra7 Nf5 Rc7 Bg2 Ra7 Bh1 Nh6 g8B Ra5 Be3 b1R Ba7 Qde8 d8R Kb2 d7 Q8e5 Qd4+ Kc1 Qg4 b2 Rg3 h3 N3h4 h2 Rc3 Bg7 f8N Na6 f7 Qc5 Nh7 Qeg1 Nf6 Bf8 Ne8 Rb5 a3 Bb7 Ra8 Bd5 d8Q Bc4 Qd3 Rb3 Qgf3 Ng4 Qfe2 Nf2 Qg4 Be7 f8N Rh5 Bgd5 Nd1 Ne6 Bd6 N6c7 Bf8 Nf3 Rh3 N3h4 Re3 Kh7 Rg3 Bg8 Bf7 g6 Re3 Rd8 Rg3 Ra2 Ra1 Rd6 b1Q Rb2 Rb5 Rb4 Ra5 Rbd4 Qb7 Ra4 Rb1 Qf1 Rb4 Qff3 Re4 Qd3 Ree3 Neg7 Be8 Bb3 Bf7 Nge8 Qcc6 Nh6 Rg5 N6f5 Qc5
Q1b3N1/1B1nKnqk/3q1prB/2bR4/1qRN1rRP/BQ6/R2Qp1P1/3n4 w - - 0 1 illegal: No possible last move, all moves rejected
Q1NqBr2/4Q3/R1R2p1n/1BNnPrQ1/1Bb2nQ1/2NqP3/pr1k3K/4b3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Ke7 b4 h5 g4 c5 Kg2 a5 d4 a4 g5 c4 b6 h3+ Kh2 a3 b5 c3 g6 c2 g7 h4 d6+ Ke6 b7 Kd5 d7 Kc4 d5 Bd6 b6 Rh6 e3+ Kb4 Bd2+ Kb3 Nc3 Rf6 Na4 Nh6 g8B Nc6 b8Q Rf5 b7 Bb4 d6 Ne7 Qg4 c1N Nb6 Kc2 Ne2 Nd3 Nc3 Nf4 Bb5 Ned5 Qa7 Ba5 b8Q Ba6 Nc8 f6 Bf7 Bb4 Be8 Ba5 Rhb1 Bb4 Rb3 a2 Ra3 Ba5 Qbb7 Rb8 Qba8 Bb4 Qd4 Rb7 Qg5 Rb6 Bc6 Bc4 Ra6 Ba5 Re1 Rb2 Bb5 Bb4 Kh1 h2 Qe4+ Nd3 Qeg4 Ba5 Kg2 h1R Rf1 Rg1+ Kh2 h3 Rb1 N3f4 Rc1+ Kd3 Rc2 Qe7 d8N Rg3 Nc6 Qd8 d7 Rg1 Nd4 Rg2+ Kh1 h2 Ne6 Bb4 Na4 Ba5 Bb4 Rd2 Rc1 Rg2 Nc3 Kd2 Nc5 Rg3 Qg6 Rh3 Qg7 Rhh5 Q7g6 Rhg5 Q6h5 Rg8 Qhg6 Rf8 Q6g5 Nd3 Kg2 h1Q+ Kg3 Qe4 Kh2 Qb6 d8Q N3f4 Qe7 Qd8 Rb1 Qd3 Rc6 Rc2 Rb3 Rb2 Ra3 Bc7 Ra7 Ba5 Raa6 Rc2 Ne2+ Kd1 Ba3 Be1 Bb4 Rb2 Na7 Bf2 Nc3+ Kd2 Nc8 Be1
B1r2qN1/2b3R1/5pN1/k1qPqbrR/1r3R2/3Q1nnP/3p2BB/KQ1R1Q2 w - - 0 1 illegal: No proof kernel
2rNBbk1/4n3/1QQ2p1b/q1P1B1Pr/2n1pNQ1/2R1B3/1NbRN3/3qr1K1 w - - 0 1 illegal: No possible last move
k5B1/q6R/1B1qpPRb/1p1rP3/bQ5q/RnKB1n2/QNB4N/1Q1r1r2 w - - 0 1 legal: proof: g4 a5 c4 g5 h4 d5 hxg5 f5 gxf5 Kd7 cxd5 Ke8 b4 axb4 a4 Kd7 f4 c5 e4 Kc7 d4 b5 Kd2 Kb7 e5 h5 a5 e6 g6 h4 g7 b3 d6 h3 a6+ Ka7 d7 b2 d5 h2 d6 c4 Na3 b1R Nf3 Qf6 d8Q Qe7 d7 Bb7 Qa5 Qc5 d8R c3+ Kd3 c2 Be3 c1Q Nc4 Bd5 Nb2 Nh6 Rd7+ Bb7 Rg1 h1Q Rg6 Nf7 Rc7 Rh4 g8B Ng5 Rh7 Nc6 Bf2 Nd4 Be3 Kb8 a7+ Kc8 Qa6 Bh6 Ra4 Rb8 a8B Qa7 Bf2 Nc2 Kc3 Nd4+ Qc2 Qd1 Be2 Kd8 Ra1 Be4 Qa3 Kc8 Bf1 Nb3 Bb6 Nc5 Qc1 Bd3 Be4 Bc2 Qb3 Rb7 Ra3 Kb8 Qa2 Bb3 Qc2 Qd5 Bc4 Rd1 Qcb1 Rf7 Bc2 Ba4 B4d3 Qh3 Nh2 Nb3 Be3 Rg4 Bb6 Rd7 f6 Rg2 f7 Rf2 f5 Ka8 f6 Qh4 Bc4 Rff1 B4d3 Nf3 f8Q+ Rd8 Qb4 Qc6+ Qc5 Rd5 Qc4 Qcd7 Qb4 Qd6
1rNbqN2/4N2q/3pQ3/p4n1Q/krbPQ2K/B1QR2RP/rR1q4/2Bn4 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 c4 g5 f4 a5 Kf2 e5 Kg3 e4 c5 e3 f6 g4 h6 b4 f7+ Ke7 c6 Kd6 h7 Kc5 c7 Kb5 h3 b3 f5 b2 f6 e2 Na3+ Kb4 Kh4 b1Q Nb5 e1R Nf3 g3 Na7 g2 Ne5 g1Q Ng6 Re6 Qh5 Qe8 Ne7 Re2 Ra3 Qe3 Rg1 Nh6 Rg3 Na6 b8Q Nc5 b7 Na4 Rd3 Bg7 f8N Nc3 f7 Nd1 Nd5+ Ka4 Ne7 Rg8 h8Q Bd4 Qg7 Bb6 Qc3 Rh8 Nac6 Ra7 Qa8 Rg2 b8R Ba6 c8Q Bc4 Qa6 Rb7 Nc8 Bd8+ N6e7 Rb4 Qe6 Qc2 Qaf3 Qe4+ Qf4 Qh7 Qfe4 Rh2 Rde3 Rf2 d4 Qd3 Rb5 Ra2 Rb7 Qd2 Rd3 Rb1 Rb2 Rg8 Rc2 Rb8 Rb2 Rg5 Nfg6 Rgb5 f8B Rb4 Bg7 Bd5 Nf8 Bb3 Be5 Bc4 Bd6 Nf5+ Kg4 R4b5 Bc5 d6 Ba3 Nfe3+ Kh4 Rb4 Kg5 Nf5+ Kg4 Ng7 Kh4 Nf5+
2R5/B2bk3/3pBnqP/q2rR1B1/r2qNK2/p2PN2b/1NQ1n1QN/3Q3n w - - 0 1 legal: proof: b4 h5 f4 e5 a4 exf4 c4 b5 cxb5 h4 a5 h3 gxh3 Be7 h4 Bc5 h5 Bb6 axb6 Qg5 Bb2 Qe7 Bc1 Qd8 Kf2 a5 Kf3 f5 e4 g5 h4 c5 h6 d6 b7 c4 e5 a4 h5 c3 h7 c2 e6 a3 e7 Nf6 d3 Bd7 h6 Be6 b6 Ra7 b5 Ra4 Nc3 Kf7 e8N Nd5 Ne4 Nc3 Nc7 Nd5 Bh3 Nc6 b8B Nf6 b7 Ke7 b6 Rg8 h8Q Bd7 Ba7 Rf8 Bd2 c1Q b8N Qc4 b7 Qd4 Nba6 Rf7 b8Q g4+ Kg2 g3 Kf3 g2 Nac5 Rg7 Qg8 Rg5 Rc1 Rh5 Qb1 Qa8 Bb8 Qa5 Ba7 Rg5 Qbc2 Rh5 Ne2 g1Q N2g3 Rg5 Qa8 Rh5 Nf1 Qg6 Nh2 Rg5 Re1 Rh5 Ke2 f3+ Kf1 f4 Be6 f2 Ke2 f1N Kf3 Ng3 Re2 Rb4 Na4 Nh1 Nb2 Rd5 Qg8 Ra4 Qg7+ Qf7 Qg2 Qg6 Re3 Nb4 Re1 Na2 Re2 Nc3 Re3 Rc5 Re1 Ne2 Nd5+ Ke8 Ne3 Ke7 Qb1 Rd5 Rc8 Qg5 Qbc2 Qg6 Ng5 Ne4 Kg4 f3 Bc1 f2 Bd2 Ng1 Kf4 Nf6+ Ne4 f1B Re2 Rb4 Be1 Ra4 Bh4 Qab6 Re1 Qa5 Bg5 Ne2+ Kf3 Rb5 Nc3 Qg8 Qg1 Qg7 Neg4 Bh3 Qg2 Nc1 Re5 Rc5 Ne3 Rd5 Ne4 Qg6 Kf4 Ne2+
1r5R/n3r1Q1/1Np2PR1/k5bR/1N1r1PqB/5R1Q/pb1n2q1/1Q2KbNB w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 g4 h5 b4 e5 g5 a5 f6 a4 d6 a3 b6 Kc6 g6 h3 g7 e4 b7 Kb6 d7 h4 b5 h2 Qf3 e3 Nc3 h3 Na2 e2 Nb4 a2 Bg5 Nc6 b8Q+ Bb7 Bh4 Rh7 Bg2 Ka5 b6 Qc8 d8Q Na7 Qe7 Ba6 b7 c6 Rb1 Qf5 Rb3 Qg4 Qfg3 Bb5 Rf3 Bc4 Qf7 Be7 Qg6 Bb5 Qf8 Rc8 b8N Bd3 Nd7 Rb8 Nb6 Bc4 Kd2 e1B+ Kd1 Bd8 Qb1 Bc3 Qf7 Ba1 Ke1 Bb2 Qfg6 Bf1 Qgd3 Ne7 g8R Nd5 Rg6 Ne3 Qc7 Nc4 Qg7 Nd2 d5 Bc7 Qe3 Bf4 d6 Bh6 d7 Bg5 Qf8 Re7 d8R Kb5 Qg7 Ka5 Ne2 Ne4 Rh8 Nd2 Rg1 h1R Rh5 Rh2 Bh1 Rg2 Rgh6 h2 Rh8 Qc4 Qe6 Rg4 Rgg3 Rd4 Qh3 Reb7 Ng1 Re7+ Re3 Qe6 f4 Qg4 Be4 h1Q Ref3 Qf5 Rg4 Bh6 Rg6 Bg5 Re3 Qg4 Bd5 Qh2 Bh1 Be2 Rc3 Qhg2 Rf3 Bf1+
rNnN1q2/2KR4/1P1R2BQ/n1bb4/1R5P/r1k1p2q/2BNnp2/q3B1QN w - - 0 1 illegal: No proof kernel
1B6/q1Q5/1p1b2B1/nR1b1RN1/1rr3QK/1nRqR2B/1NPP1p2/1kqN1b2 w - - 0 1 illegal: No proof kernel
2N1q3/R2nrn2/1pPqBp1k/1P2R3/1BQb4/bBK1N3/1BN2brn/R1Q5 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 fxe5 b6 d4 cxd4 a4 Qe7 a5 Qd8 a6 Bb7 axb7 Bc5 Bh3 Ba3 Bf1 Bf8 Kd2 g5 h4 d5 e4 a5 c4 g4 b4 f6 c5 Kf7 b5 Kg7 e6 d3 h6+ Kh7 h5 a4 c6 d4 e7 g3 e8N g2 e5 a3 e6 a2 e7 Ra3 Nd6 Bg7 e8B Bf8 Bb2 Rb3 Bd7 Qc8 Nh3 g1B Nf4 Qe8 Nc8 Ra3 Ng2 Bf2 Qc1 Ra7 Be6 Ba3 Ne3 Nd7 b8B Bc5 Bd6 Rc7 Kd1 d2 Kc2 d1N Bfc4 d3+ Kd2 Ra7 Na3 Rb7 Nac2 Ra7 Nf5 Ne3 Kc3 d2 Bb3 d1Q Re1 Nf1 Re5 Nh2 Nfe3 Ba3 Bb4 Qd6 Ba5 Ne7 Bb4 Rg8 Qf1 Rg2 Qc4 Kh8 h7 Kg7 h8R Nf5 Rf8 Nh6 Rh8 Nf7 h6+ Kg6 h7 Kh6 Rg8 Nb8 Rh8 Re7 Rf8 Nd7 h8Q+ Kg6 Qh5+ Kg7 Qd1 Kh6 Rb1 a1B Qc1 Rg5 Rg8 Rg2 Rg7 Nb8 Rg8 Rb7 Rg7 Nd8 Rc7 Nf7 Re7 Qc5 Kd3 Qd6+ Bd4 Bc3 Ra1 Bd2 Nd5 Bde3 Bb2 Ra7 Kc3 Rd7 Qb1 Bc5 Nde3 Ra7 Qc1 Rb7 Rd7 Rc7 Rd8 Re7 Rd7 Qh8 Ba4 Qe8 Ra7 Nd7 Bb3 Bd4+
2N2qNB/5b2/P1r1B1Kn/1R2bp1Q/N1RqRr2/kn4Qb/2Pp1N1r/5Q2 w - - 0 1 illegal: No possible last move, all moves rejected
1Q2N3/q3NRBN/P1R1b3/K2pbR2/rnq4P/k2Bp1q1/b4rn1/3Q2RB w - - 0 1 illegal: No possible last move
3BR3/bRNqbB2/pN6/3K2nr/r4QR1/4pP1q/Qq4NP/QQn2k1b w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 b4 Kh4 f3 g5 b6 a6 b7 e6 b5 c6 f6 g3 d6 g2 f7 g4 d7 g3 b6 Rh5 Na3 Nh6 Rb1 Be7 f8Q Nf7 Nh3 Ng5 Nf4 g1Q+ Ke5 g2 d4 c5 d5 c4 d6 c3 Nc4 c2 Qg8 Qf2 Rg1 Qg3 Kd4 e5+ Kd5 Nc6 b8Q e4 b7 Qc7 d8N Bh3 d7 Ne5 Nb6 Nd3 Nde6 Ra7 d8R Qd7+ Qd6 Qg4 b8Q Rb7 Be3 c1Q Nc7 Qb2 Re8 Nc1 Bc4 Qg3 Qa4 Qgg4 Qa1 Qg3 Na4 Rb4 Nb6 Ra4 Bd2 Qgg4 Ba5 Qge6+ Kc5 Qh6 Bf7 Qhh8 Kd5 Qh7 Rd1 g1B Rd4 Bg2 Rc4 Bh1 Ng2+ Kh3 Rb4 Bc5 Rd4 e3 Rg4 Qc8 Qf4 Bd4 Nba8 Ba7 Qbb4 Qf6 Nb6 Qhg7 Rb3 Qb2 Qbe4 Qh6 Qeb1 Qh7 Nc4 Qhh8 Rb7 Qh6 Nb6 Qh7 Qgg6 Qd7+ Qgd6 Qh6 Qc4 Qh7 Qca2 Qhh8 Ne6 Bf6 Nc4 Qh7 Ne1 Be7 Bd8 Qhc2 Nc7 Qg2 Nb6 Qg3 Nd3 Kg2 Ne1+ Kf1 Ng2 Qc8 Qf6 Qh3 Qf4 Qd7+
1Q2R2q/nn2qq1k/p4r2/B1N3Q1/2R1p1Kr/rP1QP3/bB1BR3/5BNb w - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 cxd5 Bh6 axb5 fxg4 Rh3 g3 Rh2 g4 Rh1 Bg5 hxg5 Be6 Na3 Bf5 Nb1 Bc8 d4 Kf7 f4 Kg6 b6 c5 b7 h5 e3 e5 Ke2 g2 f5+ Kh7 f6 h4 d6 h3 f7 c4 f8R g3 Kf3 h2 d7 e4+ Kg4 c3 d5 c2 d6 Ne7 Nd2 Na6 b8Q Nc5 Ra4 Nc6 Rc4 Qe7 Re8 Nb7 Nb3 a6 Qd2 Na7 Qd3 Qf7 Bd2 c1Q Nc5 Qc3 Kh4 Rf8 d8B Be6 d7 Qh8 Bf6 Qe7 Bd4 Rf6 d8B Bf7 B8a5 Bd5 Nh3 g1Q Kg4 Qf2 Ng1 g2 g6+ Kh6 g7 Kh7 Rc2 Ba2 b3 Qf3+ Kg5 Qf2 Bb2 Qf5+ Kh4 Qg6 Rc4 Qgf7 Ne2 g1R g8Q+ Kh6 Qg2 Kh7 Qg5 Rg2 Rg1 h1B Kh3 Rh2+ Kg4 Rh5 Rg2 Rh2 Qg3 Rd8 Q3e5 Rd4 Qb8 Rhh6 Ng1 Rh4+ Kg3 Rd5 Re2 Rd4 Rc3 Ra4 Rc4 Rhh6 Kg4 Ra3 Qbf4 Rh5 Qb8 Rh4+
4r2r/5b1N/p1kqRP2/B1B1RKbb/3pN3/2NnQ2n/1PqQ1Qq1/6QB w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 g5 Ke4 a6 h4 g4 c4 d3 f4 d2 f6 d6 c5 Kd7 h6 g3 b6 g2 b7 d5+ Kf5 e4 h5 d4 h7 e3 f7 e2 h6 e1Q Nh3 g1Q Ra5 Nf6 Nf2 Qde8 Bg2 Q8e7 Ne4 Qh2 Nbc3 Qeg3 Qg1 d1B Bd2 Nc6 b8B Be2 Ba7 Rg8 h8Q Nb8 h7 Ng4 Qe5 Qhh4 h8Q Nf6 Qh6 Qd6 c6+ Kc7+ Qe6 Bh5 Re5 Nbd7 Bc5 Be7 f8N Ng4 Nh7 Bg5 Rh2 Nf2 Bh1 Nh3 Re2 Rh8 Qf8 Kb8 c7+ Kb7 Qff7 Kc6 Qb3 Bb7 c8Q+ Qc7 Qcf8 Re8 Qh6+ Qd6 Qc2 Qf2 Qd3 Qhg3 Qe3 Qgg2 Re1 Be7 Qff6 Bf7 Qfh4 Qe2 Qhf2 Bg5 Re6 Rhf8 Qd3 Bf6 Ng3 Re7 Na2 Qee4+ Kg4 Kd5 Ba5 Ree8 Qdd2 Qc2 f5 Rh8 R1e2 Bh4 f6 Bc6 R2e4 Ne5+ Kf5 Nd3 Qhe3 Bg5 R4e5+ Kc4 Qee1 Kb5 Qee3 Bf3 Nc3+ Kc6 Nge4 B3h5
1KQ3NR/NB1n1nB1/prq1bP2/2Rn3p/1b3P2/QQ1Q3B/6N1/r2qb2k w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 a6 g4 e6 f4 h3 b4 h2 g5 h6 g6 c6 b6 Rh7 g7 Qe8 b7 Bd7 b5 Qd8 b6 Be8 Nc3 Qc7 Qa4 Bh5 Bh3 Bd1 Nf3 Nd7 b8Q Ne5 b7 Ng4 Nh4 N4f6 Qc8 Nd7 b8Q Ngf6 g8B Bg4 Qbb3 Rb8 Ng2 Rb6 Qaa3+ c5+ Kc4 e5 d4 e4 Bb2 e3 Rac1 e2 Nb5+ Ke7 Bc3 e1B Na7 Kd6 Bf7 Qc6 Bh5 Bd1 Bf3 Re7 Be4 Bg4 Bf3 Re2 Be4 Ra2 Bb2 Ke7 d6+ Kf7 d5 Ra1 Kd3 c4+ Kd4 c3 Bf3 Nc5 Ke5 c2 d7 Be7 d6+ Nd5 d8Q Nd7+ Ke4 Bf8 Bg7 Be7 f6 Kg6 Kd4 Kh5 Be4 Nc5 Ke5 Be6 d7 Bf8 Ne3 Kh4 Bf3 Kg3 Ng2 Ra2 Qe7 Kf2 d8N Ra1 Qed7 Kg3 Nf7 h5 Nh6 Be7 Rg1 h1Q Ng8 Kh2 Qd6 Ne3 Qdd3 Nd5 Rb1 c1N Be4 Ne2 Rc1 Nd4 Rc2 Nf5 Rc3 Na4 Rc5 Nh6 Bf3 Ba5 Rgc1 Qd1 R1c4 Be1 Rd4 Ndc3 Rd8 Kh1 Re8 Qa8 Bb7 Nd5 Rc1 B7b4 Rc5 Rb5 Kd6 Nf7+ Kc6 Nab6 Rd8 Nd7 Re8 Nc3 Kc7 Rb6 Ne7 Ng5 Rh8 Nf7 Ng8 Bf5 Bf3 Qd5 Be4 Qe6 Bb7 Qd5 Qd8 Be6 Kc8 Qc6+ Qc7 Nf8+ Kb8 Nd5 Qc8 Nd7+
3RBQ2/nRB1N2P/2Q2q1r/BN1r4/b1KQP1R1/b1p1r2p/k4qn1/2Q3b1 w - - 0 1 illegal: No proof kernel
2k2B2/2q2QRP/1nqn2rr/1n2bRK1/p1Bq2bQ/N4PN1/1p6/N1RB1N2 w - - 0 1 illegal: No proof kernel
R7/r2Q3P/3Qn1qK/1rNQBQ1R/pbB2r1q/1P3bk1/B2N2p1/5nRb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 d4 Kf5 e4+ Kg5 h4+ Kh6 d6 c5 d5 f5 d7 g5 b6 a5 e5 a4 b7 c4 d6 c3 e6 c2 e7 Qb6 d8Q Nc6 b8R Ra7 e8B Nge7 d7 Bb7 Nc3 Nd5 Ra8 Ne3 Ne4 Bb4 Bc4 Nf1 Nc5 Rh7 Be3 c1Q Qd5 Qe1 Bd4 Qe7 Qc8 Nd8 Bf7 Qg6 Be5 Ne6 d8Q Qef6 Qdd7 g4+ Ke2 g3 Nf3 Qe7 Nd2 f3+ Kd3 f2 Bg8 Nh2 Rag1 f1R Ke3 Rf4 Q7d6 Ra5 Qcd7 Rb5 Ba2 Rf7 b3 Rg7 Qd4 Bf3 Q4d5 Qd8 Bf7 Kh7 h6 Nf1+ Kd3 Qdg5 h5 Qh4 Rh2 Bh1 Rh3 g2 Ke2 Rg4 Kf3 f4 Rh2 Rg8 Rh3 Rc8 Rh2 Rc7 Rh3 Ra7 Rh2 Qg7 Ke4 f3+ Kf5 f2 Bg8+ Kh8 h7 Rc4 Bf4 Qgg3 Bf7+ Kg7 Be5+ Kh6 Bg8 Qe7 h8Q+ Qh7+ Kf6 Qd3 Bf7 Qh3 Qhc8 Qg6+ Ke7 Kg5 h6 Kg4 h7 Qg3 Rh5 Rf4 Bg8 Qh2 Qf8 Kg3 Qf5 Ne3 Bf7 f1B Bg8 Be2 Bf7 Nd4 Kf8 Nf1 Be6 Qh4 Bg8 Qe8+ Kg7 Ne6+ Kh6 Bf3 Q5b7 Nd4 Bc4 Ne6 Qbd5 Qg6+
K1brq3/6nP/Nb2qR2/r1Rn1pP1/1nQB2B1/R1Q1b1p1/3BN3/1Q3B1k w - - 0 1 illegal: No proof kernel
qQ6/RBBb2np/2b3kn/2N2Nrp/r1Rq1KP1/7Q/1N1P4/RnbQR3 w - - 0 1 legal: proof: f4 b5 a4 d5 axb5 e5 fxe5 g6 c4 Na6 cxd5 Nb8 h4 Bd6 h5 gxh5 Ra3 Be7 Ra1 Bf8 Kf2 a5 Kf3 c5 g4 f5 b4 Kf7 e4 c4 d6 c3 d7 c2 e6+ Kf6 e5+ Kg7 b6 f4 b7 a4 e7 a3 e8Q a2 e6 Bc5 e7 Ra3+ Nc3 Ra6 b5 Rb6 Bg2 Rf6 b6 Nh6 Nge2 Rg8 Ng3 Nc6 b8N Ba3 Bb2 c1N b7 Ne2 Na4 Nc3 Na6 Nb1 Be5 Bc1 b8Q Nd4+ Ke4 f3 Bc7 f2 N6c5 f1B Nb2 Rf7 Nf5+ Kg6 Kf4 Bb5 Bb7 Bc6 Re1 Rg7 Qh8 Qe8 d8R B8d7 Rc8 Ne6+ Ke3 Rg8 Qc3 Ng7 Kf4 Qd8 e8R Re7 Kg3 Re4 Re7 Ra4 Qe3 Ra7 Kf4 Ra4+ Re4 Qf6 Qh3 Qc3 Re8 Qd4 Re7 Nc3 Rb1 a1Q Rf7 Qa3 Ra1 Nb1 Re7 Qad3 Rf7 Qa6 Re7 Qa8 Rf7 Qd5 Rc4 Qd4+ Re4 Bc8 Ba5 Ne8 Ba6 Rg7 Ra7 Kf6 Bc7 Rg5 Bb7 Kg6 Ncd3 B8d7 Nc5 Qd3 Re2 Ng7 Re1 Qd4+
1n2NK2/q2k2Bp/1bnrq1RN/6P1/p5QB/2Q2Q1B/b1qP4/NRQ2b1r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 Kf3 e5 Kg4 c5 Kh5 a4 f4 h3 b4 h2 g4 c4 f6 c3 d6 e4 d7+ Kf7 f5 c2 b6 e3 b5 e2 b7 e1Q b6 Qee7 Bb2 c1Q Nf3 Qe4 Na3 Qeb1 Nc2 Qc7 d8B Ke8 f7+ Kd7 f6 Qa2 Ne5+ Ke6 Rb1 Be7 f8Q Nh6 f7 Ra5 Qg8 Bd6 f8Q+ Nf7 Bh4 Qe7 Rg1 h1B Na1 Bd7 Bh3 Nc6 b8N Rc5 b7 Qc2 Na6 Be8 b8Q Bc7 Qb3+ Bd5 Qc1 Nb8 Qc3 Bb6 Nc7+ Kd6 Rg2 Nd8+ Kh6 Bb5 Qff3 Bf1 Nf7+ Kd7 Kg7 Ndc6 Ne8 Bdc4 Rg1 Rh5 Rg3 Qc5 Nh6 Qa5 Kf8 Qa7 Qa3 Qab3 Bg7 Qe3 Qc3 Qe6 Rg2 Ba2 Re2 Ra5 Re5 Rd5 Rg5 Re5 Rg6 Re2 g5 Rh2 Qg4 Rh1 Qcf3 Qef5+ Nf6+ Kc8 Ke8 Kc7 Qf8 Rg8 Qb3 Qe5+ Kf7 Qee4 Qfa3 Rc8 Ne8+ Kd8+ Kg8 Qe6+ Kf8 Rc7 Qbc4 Rd7 Qaf3 Rd6 Qcc3 Kd7
1b1n1Q2/2rB2rp/3R2P1/2kb2Rn/b2N1BNQ/2q1nRN1/P2p2K1/3qB1N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 c4 e5 f4 Ke7 Kf2 d5 g4 b5 f6+ Ke6 c6 Kd6 c5+ Kc7 f5 e4 g6 e3+ Kg2 b3 f7 e2 g7 e1Q g5 b2 g6 b4 f6 d4 Nd2 b1N Nb3 d3 Qg4 Qd4 Qh4 Qdc3 Nd4 b3 Bf4+ Qe5 Rh3 b2 Rf3 Bd6 f8Q Bd7 f7 Nd2 Rd1 Nf6 g8N b1B Nh6 Rg8 Ng4 Ra7 Be2 Nf1 Rd2 Bc8 Bd1 Qe1 Ba4 Bd7 Bb5 Be8 Rd1 Kc8 c7 Kb7 c8N Nh5 Bd7 Nc6 Ne7 Bb8 Nef5 Nd8 c6+ Kb6 c7 Rg7 c8R Rc7 Ng3 Bc2 Rd2 Bb3 Rd1 Bd5 Rd2 Ra7 Rc5 Rc7 Ra5 Qd1 Rc5 Ba8 Rg5 Be4 Re2 Bd5 Re6+ Nc6 Rd6 Kc5 Qg8 Nd8 f8B Rf7 Bh6 Rg7 Qf8 d2 Be3 Qe1 Bf2 Qb1 Be1 Qd1 Be6 Ba4 Bd7 Kc4 Re5 Kb4 Bf4 Kc5 Rg5 Ne3+
1Nq2rK1/b1Rqq2p/rn2Npb1/3bB2Q/kP4N1/P7/1Q1N1nBB/3R2Q1 w - - 0 1 illegal: No possible last move, all moves rejected
r2Q4/2b3Bp/1Pb1pNn1/1Q6/2r1n1QN/2RNNR1K/PqB1kn1B/1qr5 w - - 0 1 illegal: No proof kernel
NQQ5/bn1Qq1Pk/1r1B4/P7/2KRnbQ1/R1q1qBpb/1p5N/Br2N3 w - - 0 1 illegal: No proof kernel
7r/N2B1npQ/5n1n/1BNr1qrb/b1K4P/1Q4P1/BBN2pkq/RQ3R2 w - - 0 1 illegal: No proof kernel
4q1R1/N1R3p1/R4n1B/BQrNQ1n1/K1BNPPb1/q1p4r/q4bbR/k7 w - - 0 1 illegal: No possible last move, all moves rejected
3R4/3Bnrp1/1qNb1RbR/b5Np/n2q2Q1/1RNP4/B1P3n1/3KQrBk w - - 0 1 illegal: No proof kernel
k1N3n1/q2n2pK/B1p3rP/Q1NR2b1/P2Q2b1/4b2N/1q2rRq1/2QRBN2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 e5 Ke4 b5 f4 c6 a4 Kc7 d4 Kb7 h4 b3 d6 b4 d5 b2 h6 b3 h5 Qe7 f6 Rh7 f5 Ra7 d7 Qc5 d8Q Bd6 f7 Qa5 f8N Be7 d6 Nd7 f6 Rh8 Kf5 e4+ Kg6 e3 h7 e2 f7 e1B h6 Ngf6 Nh3 Bc3 Nd2 Nb6 d7 Qc5 Ne6 Rg8 f8R Ra5 h8N Bd4 Ba6+ Ka8 Nf7 Be3 Nf1 b1Q+ Qc2 b2 Nd6 Rh8 Bd2 Ng8 Be1 Qa2 Rf2 B7g5 Rd1 b1Q Rd5 Qbb2 Qc1 Rb5 Qc7 Qcd4 d8Q Nd7 Qf6 Qa7 Nc5 Rb4 Qa5 Rg4 Rff5 Qg2 Rf2 Qb2 Qfd8 Ngf6 Qdb6 Re8 Qbb4 Re6 Qd4 Ng8+ Kh7 Rge4 Rg1 Rg6 Rh1 Ne5 Rg1 Bg4 Nc8 Nd7 Rd2 Qe2 Rg2 Qf3 Rgf2 Qg2 Rd1 Bef4 Nd3 Re2 Nc5 Be3
q2Q1Kn1/4bPQ1/R2rk3/Pb1N2bB/Q4n2/1rNN1R2/p2p3q/1RB2Q1r w - - 0 1 illegal: No proof kernel
R1QQn1b1/b2Nbp2/r1qR2Q1/r2P2p1/1PNB2R1/4R2n/1n1K1k2/2q2N1B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 Kd6 e4 Ke5 d6 Kd4 e5 a5 e6 c5 e7 g5 e8R c4 h6 f3 b6 a4 h7 c3 b7 a3 d7 c2 h5 a2 h6 Nf6 Re3 Ra3 Bg2 Na6 b8N Qe8 d8Q+ Nd5 Nd7 Nf4 Rh4 Ra5 Bh1 Nc7 Rg4 Be7 Na3 Rg8 h8R Rg6 h7 Rga6 d3 f2+ Kd2 f1Q Nc4 Bb7 Rg8 Be4 Rg6 Nh3 Rf6 Qf4 h8Q Bh7 Qf3 Bg8 Qc6 Na8 Ba3 c1N Qcc8 Nc7 Qh6 Bd6 Qg6 Be7 Rb1 a1B Nf3+ Kd5 d4 Nd3 Re1 Nb2 Re6 Qh2+ R1e2 Qg1 Reg2 Qf1 Nh2 Qb1 Nf1 Qc1+ Ke2 Qf8 Rb6 Qh6 Rb8 Ne8 Ra8 Nd1 Kd3 Bc3 Bb2 Be1 Qh7 Qc6 Qg6 Bg3 Ba1 Bb8 Bc3 Nb2+ Ke2 Qb1 Kd2 Ba7 Rf2+ Qe4 Rff3 Qb1 Rf6+ Qe4 Ref3 Qb1 Rgg3 Qf5 Rd6+ Ke4 Re3+ Kf4 d5 Qb1 Rg2 Qa1 Re4+ Kf3 Rgg4+ Kf2 Re3 Qb1 Bd4 Qc1+
5b1Q/n4p2/1B3N1P/3r1k2/pN1qqBrQ/PQ1R2bn/3RKQr1/B4R1b w - - 0 1 illegal: No possible last move, all moves rejected
k1B2nB1/r1Rq1p1N/1r1p2QQ/q1QPRbBK/6b1/8/b1P4R/2NnR2q w - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 b5 a3 e5 b3 c4 bxc4 Bb4 c5 exf4 Kf2 Ba5 Ke1 b4 Bb2 b3 Bc1 Bb4 axb4 Qa5 Nh3 Qb6 Ng1 Qd8 Kf2 g5 Kf3 a5 Kg4 b2 h4 f3 e4 f2 d4 a4 e5 a3 e6 d6 c6 a2 b5 Qf6 c7 Qg6 d5 Ra7 b6 Ra5 b7 Nc6 b8Q Qh7 h6 Ra8 h5 Nd8 Bd3 f1B Qb4 Ra4 Rh2 Ne7 Nh3 Nf5 e7 Kd7 e8R Ra7 Re5 Ne6 Nd2 Nf8 Nb3 Bg2 Rb1 a1Q Qc5 Qa5 Qdg1 Rg8 Ra1 b1B Be4 Qg6 h7 Ba2 h8Q Qe6 h6 Ne3+ Kh5 g4 h7 g3 Ng5 Nd1 Be3 Qf5 Nc1 Bh3 Qf6 g2 h8R Qe6 Bh7 Qe7 Qh1 g1Q Qe4 Qh1 Qh6 Ba6 Bd2 Kc8 Qeg6 Kb7 c8B+ Ka8 Rb1 Bf5 Rb7 Qed8 Rc7 Bf1 Be3 B1h3 Re2 Qe8 Re1 Qd7 Bd2 Ne6 Be3 Re8 Bg8 Nf8 Nh7 Rd8 Bg5 Re8 Ba6 Rb8 Bc8 Rb6 Qhg7 Qa6 Kh4 Bd3 Nf6 Bdf5 Rh6 Qa5 Nh7 Qd8 Rh5 Qd7 Q7h6 Bhg4+ Kg3 Qe8 Rh2 Bh3 Kh4 Qd7 Kh5 Bhg4+
4br1B/q3P1q1/4pQ2/1N2RNb1/n5P1/r2Q1RRp/2KRq3/1BQrnB1k w - - 0 1 illegal: No proof kernel
bk6/1qRBP1qb/2p2b2/1QR1n2p/K2r1QR1/4BrR1/5NP1/Nn1NQr2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 h5 Kc2 a5 Kb3 f5 e4 f3 d6 f4 e5 f2 e6+ Ke8 e7 Kd7 g6 f3 g7 Rh7 d5 Rh8 b6 Ba6 b7 Qc8 Bb5+ Nc6 b8Q f1R Ra3 f2 Ka4 Qb7 b4 Rh7 Qe1 Rh8 Nc3 Qc8 Nh3 Rh6 Be3 Rg6 Nd1 Nf6 g8R Rg3 Rg4 Bb7 Rc3 Rf3 Rc5 Ne4 Rh2 Rh1 Rg3 f1B Nhf2 Bh6 Rh4 Nd2 Rd4 Ra7 Rdg4 Ba8 Qb6 Qb7 Qa6 Kc8 d7+ Kb8 d8R+ Qc8 d6 Ne5 Bd7 c6 b5 Bg5 b6 Bd3 b7 Rf1 Qb5 Bh7 Re8 Ra6 Rf8 Nb1 Rd8 Ka7 b8N Qb7 Rc8 Rb6 Na6 Bf6 Nb4 Ra6 Rc7 Kb8 Nc2 Ra7 Kb3 a4+ Kb4 a3 Na1 Ra6 Kb3 Rb6 Ka4 a2 Bc8 Ng6 d7 Ne5 d8Q Ra6+ Qba5 Rb6 Qd6 Rb2 Qd4 Rd2 Bd7 Rd3 Qf4 Rd5 Nb3 Rd2 Qb5 a1Q+ Kb4 Qc3+ Ka4 Rd3 Na1 Rd4+ Qc4 Qd3 Qcb4 Qg6 Qc4 Qg7 Qcb4 Nc4 Qb5 Ne5+
2K1B3/1R2pR2/1n2RB2/4Nn1Q/2nP1kN1/1r1b1r2/Pb1b1Q1p/B1Rqq2N w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 h5 Ke4 b5 Ke5 c5 f4 c4 d4 h4 g4 h3 f6 Kg6 f7 c3 d6 b3 d7 b4 Ke6 c2 f5+ Kg7 f6+ Kg6 Nf3 b2 Nbd2 b1Q Bb2 c1B Ne4 h2 Ng3 b3 Bb5 Ra3 Rf1 Nc6 Nh1 Bg7 f8Q Ra8 f7 Kh7 g6+ Kh6 g5+ Kh5 Rf2 Bf6 g7 Kg4 g6 Rh3 Ne5+ Kg5 Rf1 Nh6 g8N Bg7 Nf6 Qa5 Rf3 Ba6 d8R Qb4 Kd7 Na7 Rb8 Qe1 Rb7 Nc8 Kd8 Ra7 Be8 Nb6 Bc3 b2 Rf2 Nd7 Kc8 Bd3 Qe2 Rg3 Qh8 Ra6 f8B Rb6 Nfg4 Rb3 Rf7 Nf5 Qf2 Bh6 g7 Rf3 Qh7 Qc2 Qh8 b1N g8R+ Kf4 Bg7 Kg5 Qh7 Nd2 Qh8 Ba3 Rc1 Nc4 Ba1 Bb2 Qh7 Qcd1 Qg6+ Kf4 Qh5 Ke4 Rh8 Bg5 Rh6 Bd2 Re6 Kf4 Bf6 Ndb6+
1qbN1rk1/3Npq2/3P1Rn1/1QRq4/r2Q3P/KBNQ1R1R/1Bp2nn1/4b3 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 a5 d4 c5 Kd2 g5 Kc2 c4 b4 g3 Kb2 c3+ Ka3 c2 b6 g4 f6 g2 b7 a4 d6 g3 b5 Qe8 f5 Ra6 d5 Qd7 b6 Qd8 d7 Nc6 b8Q Ne5 d6 Ra5 b7 Nh6 Bb2 Kg8 Nc3 Bg7 Qd4 Nhg4 Rh3 Nf2 Nf3 Ng6 Ne5 g1Q Ra2 Qg2 Bc4+ Qd5 Bb3 Qe8 d8N g2 Nd7 g1N Qd3 Qdf7 Qa7 Nf3 b8Q Ne1 Qbb5 Ng2 Qad4 Bh6 Ra1 Bd2 Re1 Ra6 Re5 Be1 Rc5 Qd5 Kb4 a3 f7+ Kh7 f8R a2 f6 a1Q f7 Qb1 Rg8 Ra8 f8R Ra7 Rff3 Qef7 Rf8 Ra8 Bc4 Ra4+ Kb3 Qfe6 R8f6 Qf7 Q3e4 Rf8 Qed3 Qa8 Bd5 Kg8 Bc4 Qb8 Bd5 Qd1 Be6 Rb4+ Ka3 Qd2 Bc4 Qg5 Ba2 Qgd5 Bb3 Ra4+
2Qq2R1/NbK1p2b/p1R2R1N/5N2/1P1r1rQN/2n2Qbq/6Pq/1kB1nB2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 d5 b4 h5 c4 h4 b6 a6 c5 d3 f6 Ke6 c6 Ke5 b7 Kd4 f7 d2 c7 h3 g6 h2 g7 Ra7 Nc3 Rh4 Nge2+ Kd3 Nb5 Nd7 b8R Ngf6 g8N d4 Nh6 Bg7 f8N Nc5 Ng6 Nd5 Rg1 Rg4 Nh4 Bb7 c8Q h1Q Ra2 Qd6 Rc2 Qdh2 Rc4 Ra8 Na7 Be5 Rc2 Bg3 Rc4 Ne6 Rc6 Nc5 Rf6 Re4 Qg4 Nc3 Rg8 Rf8 Qb3 d1Q Qbe6 Kc2 Qc8 Bf4 Rc6 Qe1 Ng3 d3 Ngf5 Bg3 Rf6 Rd4+ Rc6 Ne2 Ke3 d2 f4 Kb1 Kf3 Rd5 Ke3 Nd3 Ke4 d1B Rf6 Rc5+ Rc6 Rc2 Kd5 Qd2 Ke6 Rc3 Kd7 Rc4 Kc7 Rd4 Ne3 Nc3 Be2 Rdd8 Rf1 Ne1 Rf3 Bb3 Bf1 Bc2 Rf2 Rd6 f5 Q2g1 f6 Bh7 f7 Qh3 Rf3 Qgh2 Rf2 Rfd8 f8Q Re6+ Rf4 Re4 Qff5 Qd4 Qf3 Rd5 Q5g4 Rd6 Rf6 Rf4 Nef5 Qd5 Rg7 Qg8 Rg5 Rdd4 Rgg6 Qf8 Rg8 Qd8+
k1q5/b2p2BQ/1BqR2rr/RNRBP3/b1nB4/P2r4/Q2n2p1/N2K2bQ w - - 0 1 illegal: No proof kernel
Bk1B4/1BRp1Q2/Q3qrP1/r1B3bR/n5qn/p2P2b1/8/RNn1NKNr w - - 0 1 legal: proof: h4 e5 a4 b5 b4 g5 hxg5 Be7 axb5 Ba6 b6 Bd3 b7 Bf5 f4 Qc8 c4 Bc5 b5 Bf8 b6 exf4 Ra6 Qd8 Ra1 Be4 Rh6 Bc6 Rh1 Bb5 cxb5 Ba3 Rh2 Bc5 Rh1 Bf8 g4 a5 e4 h5 e5 f5 d3 c5 e6 c4 g6 h4 g5 h3 e7 h2 g7 c3 Qe2 c2 Qf3 a4 Qe2 a3 Qg2 f3 Qg4 f4 Bg2 f2+ Kf1 Na6 b8R Nh6 g8Q Nf5 b7 Nh4 b6 Nc5 Q4e6 Ra5 Be3 c1B Rc8 Na4 b8B Rh6 b7 Rf6 Bc5 Be3 Rc6 Qb6 Rc7 Bc1 Qc4 Qe6 Qa6 Bd2 Bd5 Be1 Qh7 Bh6 Bba7 Qg4 b8N Qe6 Be4 Qg4 Nc6 Qe6 Ke2 f1N Nb4 Nd2 Bab6 Nb3 Nc2 f3+ Kf1 Bg3 Bb7 f2 Ne1 Qg4 Qf5 Nc1 Qf4 Kf7 e8B+ Ke6 g6 Bg5 Qf3 Ke5 Bf7 Qe6 Bd4+ Kd6 Ba8 Qg4 Bfd5 Qe6 Bdb7 Qg4 Rc2 Qe6 Bbc5+ Kc7 Bb6+ Kb8 Bd8 Qg4 Rc7 Re6 Qf7 Rf6 Bc5 Qe6 Ngf3 Qg4 Rg1 Qe6 Rg2 h1Q+ Ng1 Qhh3 Bde7 Qhf5 Rh2 Qg4 Bd8 Nf3 Kg2 f1R Rh5 Nh4+ Kh1 Nf5 Kg2 Nh6 Ngf3 Rh1 Ng1 Nf5 Kf1 Nh4+
3bR2K/q2p1B1r/k2P1RQ1/2BR2N1/pnN4N/q2r1P2/Q1Q1n3/1q2Qb1b w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ke2 e5 Kf3 h5 Ke4 a5 d4 a4 c4 h3 g4 h4 d5 h2 b6 h3 f6 Nc6 Kf5 e4 Kg6 e3 f3 e2 f7+ Ke7 b7 e1Q b8R Qe8 d6+ Kd8 g5 Qf2 Na3 Rh4 Be3 Qb2 Qe1 Rh5 Rd1 Qe7 Rd5 Na7 c6 Qc3 c5 Qe8 Nc4 Bh6 Kh7 Nb5 f8N Qa3 g6 Nc3 g7 Ne7 g8Q Ne2 Ng6 Bg5+ Kg7 Ra5 Nh4 Rh6 Bd4 Rg6+ Kh8 Rg7 Ra8 Qf8 Be3 Rb5 Bf2 Rb3 c7+ Ke8 c6 Rd3 Bc5 Bf6 Rg5 Nd5 Rb8 Nb4 Rd5 Bd8 Ra8 Ba6 c8Q Qc3 c7 Qa3 Qb8 Bb5 c8Q Rc3 Nd2 Nd3 Be3 Ng3 Qe2 Re7 Ra5 Rg7 Nb3 Re7 Rg5 Bc4 Qbc7 Nb4 Qd2 Rg7 Qd3 Bb5 Qa6 Be7 Nd2 Qc1 Rg6 Qa3 Rf6 Bc4 Qc5 Kd8 Qg6 Bd3 Qcf5 Rb3 Qa7 Kc8 Qac5+ Kb7 Qe6 Qb8 Qc2 Ba6 Bc4 Bd8 Rh5 Qa8 Bc5 Qa7 Qe2 Bb5 Re5 Rc3 Re8 Ka6 Qge6 Re3 Qa2 Rb3 Bd5 Bd3 Nc4 Rc3 Qec2 Rb3 Ne2 Rc3 Rd1 h1Q Nd4 h2 Rd2 Qb1 Qe1 h1B Ne6 Bf1 Ng5 Ne2 Bf7 Rb3 Rd4 Rd3 Rd5 Rh7+
1rR1K3/1n1p2np/Nb1Q1R1P/6Bq/kn2b2P/1r4B1/N4BR1/1R2NbQq w - - 0 1 illegal: No possible last move
n1n4r/2P5/2bb2B1/2r1qNRR/kr1p1B1N/qb1RBR1K/1Q3P1p/Q4Q2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 a5 c4 h5 b4 e5 g6 d5 f6 Kd7 g5 e4 b6 Kc6 b5+ Kc5 g7 Kb4 c5 e3 c6 h4 f7 e2 b7 a4 b6 a3 g6 a2 Nd2 d3 Nc4 d4 Ne3 h3 Nf3 Ne7 g8Q Qd5 g7 Qc5 Nh4 Bd7 Nef5 Be6 Be3 Nd7 b8B Ra3 b7 Nc8 Bbf4 Ra7 b8Q+ Rb7 c7 Bd6 f8R Bb3 Qc4+ Ka3 g8R h2 Rg5 Ndb6 Rb1 Ba4 Rb5 Na8 Qa1 Qe5 Rhg1 Bb3 R1g3 Rb6 Rd5 Rb4 Bg2 Ba4 Be4 Bc6 Rh5 Ka4 Qcc1 Rc4 Qbb2 Rb4 Rc5 Qe6 Rc3 Qf6 Rgg5 Qe5 Qab1 a1Q Rf6 Qa3 Q1a1 Rh6 Ne7 Rh7 Bg3 Rb6 Bg6 Rb7 Rf3 Rh8 Bgf4 Rb5 Nef5 Rb4 Kd2 e1R Rb3 Re2+ Kd1 Rc2 Ke1 d2+ Kf1 d1B Kg2 Rd8 Rd3 Rh8 Kh3 Rc5 Qcb1 Bc2 Qf1 Bb3
8/1BPK1Nq1/4pRQ1/NrkBb3/2n1Q3/2q1nNPn/r4RBp/3RBb1b w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Ke2 d5 Ke3 Kd7 Kd4 a5 Ke5 h5 c4 a4 f4 a3 b4 e3 g6 a2 g7 e2 g3 e1Q+ Qe2 d4 c6+ Kc7 c5 d3 f5 d2 f6 d1B f7 h4 Na3 h3 Bg2 h2 Nc4 Ra6 Qe4 Be6 b6+ Kc8 c7 Kd7 b5 Bd5 b7 Bb3 c8B+ Kc7 b6+ Kc6 Nd6 Qc7 Bd2 Ra4 Rd1 a1N Nf3 Nh6 g8B Nc2 Rf1 Ra2 Rf2 Bc4 Bc3 Qe3 Be1 Ng4+ Kf5 Nd7 b8Q Qa7 b7 Bg7 f8R Qc3 Rf6 Bf1 Nf7+ Kb5 c6 Nde5 Qd6 Nc4 Qde6 Kc5 b8N Rh3 Bb7 Rh5+ Kf4 N2e3 c7 Qb6 Nc6 Qbb2 Na5 Bh8 Rc2 Nf2 Q6f5 Qa1 Qg6 Rg5 Nh6 Bc6 Bd5 e6 Nf7 Qab2 Qd3 Nh3+ Ke4 Qb6 Rf2 Qa7 Qe2 Qb8 Qd3 Qf8 Qc2 Qg7 Qb1 Ng1 Kf4 Rh5 Qbe4 Kb6 Qc2 Rh4+ Qg4 Qb2 Bh1 Kb5 Nd4+ Kb6 Rf5 Qf8 Bdf3 Rh5 Qg6 Bf6 Qd3 Be7 Rf6 Rb5 Qdf5 Qc3 Qd5 Nd2 Ke5 Nh3 Be4 Qg7 Bef3 Bb4 Be4 Rc5 Kd6 Ndc4+ Ke7 Rb5+ Kd8 Qh6 Qe5 Bd5 Kd7 Bd6 Qf4 Kc5 Bef3 Be4 Qh4 Bed3 Bfd5 Be5 Bhf3 Bg2 Qhe4 Bh1 Bg2 Bf1 Nf3 Qg7
5bnb/RP6/r3Bq1r/q4B1R/1k1B1Q1P/5Npb/1nK1N1p1/1QQB1R1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 d4 a5 Kd2 f5 b4 c5 e4 g5 e6+ Kd6 e5+ Kc7 e7 Kb6 e8B c4 d6 f4 d7 g3 d5 g4 e6 c3+ Kc2 a4 d6 a3 e7 a2 Bg6 g2 e8B g3 Nf3 Rh6 Be3+ Kb7 b6 Kc6 b5+ Kb7 Bc4 Qe7 d8R Ra6 d7 Qf6 Qc1 Nc6 Bd4 Na5 Be6 Nc4 Rf1 Nb2 Bgf5 Qe5 Bh5 Qe1 Ng1 f3 Nd2 f2 Bd1 Qe5 Ne2 Qd5 Rg1 f1Q Nf3 Qe5 Re8 Qf6 d8Q Qe1 Re7+ Bd7 Rb1 a1B Rf1 Qd2+ Kb3 c2 Qc7+ Ka8 Rf7 Qa5 Q7f4 Kb7 Rg7 Bc5 Rg5 Bf8 Rh5 Bc8 Qce3 c1N+ Kc2 Ncd3 Qc1 Na4 Rb2 Nf2 Ra2 Nb2 Ra4 Nh1 Ra3 Bd7 Ra4 Kc8 b7+ Kd8 b8Q+ Ke7 b6 Bc8 Qg5 Bd7 Qb7 Kd6 Qe4 Bc8 b7 Bd7 Qef4+ Kc6 Ra3 Kb5 Qb1 Kb4 Qfc1 Be8 Qgf4 Bg6 Bd3 Bf5 Be4 Bg4 B4f5 Bh3 Rc3 Bd6 Rc8 Bc5 Ra8 Bf8 Ra7 Qh8 Qa2 Nc4 Bb6 Be5 Bd4 Nb2 Qab1 Qg7 Nc3 Qg5 Ne2 Bh8 Nc3 Qg6 Ne2 Qf6
3nb2R/BPQB3Q/1Q1N4/3krqB1/p1bbr1BK/3q3N/pR1P4/1n1n3N w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Bd7 hxg5 Bc8 b4 Kd7 g4 Kd6 f4 h5 Kf2 a5 Kg3 e5 f6 c5 f7 c4 b5 c3 f5 c2 g6 a3 g5 e4 f6 a4 g7 a2 g6 e3 b6 e2 b7 e1N Bh3 Bf5 Bb2 c1Q Qb3 Rh6 Bg4 Bd3 Nh3 Qd1 Qb6+ Nc6 Kh4 Ne7 g8B Bc2 g7 Bg6 Nc3 Qc1 Nd1 Qc5 Rb1 Nc2 Bd4 Ne3 Rb2 Ra5 Ndf2 Nd1 Rh2 Qc2 Nh1 Qf5 Bg1 Ke5 d6 Nd5 d7 Bc5 f8B N5c3 Be6 Be8 g8Q Nb1 Be7 Bd4 f7 Ke4 f8Q Re5 Bg5 Rh7 Bc4 Rhe7 Qh7 R7e6 Bb5 Kd5 Qa3 Re4 Qg3 Re7 Qgc7 R7e5 Kg3 h4+ Kg2 Qe7 d8N Qd6 Nf7 Nd8 Bd7 Qa3 B1e3 Qb3 Nd6 Qd3 Ng1 h3+ Kg3 Qf8 Kh4 Qf5 Rf2 h2 Nh3 Qe6 Rf8 Qf5 Ng3 h1B Rh8 Bg2 Nh1 Bf1 Qa6 Bc3 Ba7 Bd4 Qab6 Qdf3 Be7 Bc4 Bg5 Qd3
4qB1b/1p2n1R1/1b1Rn1pQ/4QQR1/2N1rPP1/1Nr3bN/3QK1Bk/2q4n w - - 0 1 illegal: No extended proof kernel
b1b3bR/Rp6/r2Pk1q1/N1Q2pn1/2r1qP2/3B2KN/1R1NR1r1/B2n1Q1B w - - 0 1 illegal: Other
b1r1n1nN/1p1B3P/1P3B1K/rbq2r1N/4k2q/1p1RB3/qQ4R1/RQQR4 w - - 0 1 illegal: Other
4q3/PBNk2b1/3pN2R/Q2n4/1RB1KnN1/B2Q4/rb1Pq1pR/Bb2qr2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 Nf6 cxb5 Ng8 b4 axb4 Kf2 g5 Kf3 c5 e4 f5 h4 d6 a4 c4 h6 f4 b6 c3 h7 c2 a5 b3 h5 b2 h6 Ba6 e6 Nc6 e7 Na7 e5 g4+ Ke4 g3 b7 g2 b8Q f3 Qb6 f2 Nc3 b1Q Nge2 Qb4+ Nd4 Qc8 Nd5 Qd8 Qe2 Qc5 Nc7+ Kd7 e8N Nc8 e6+ Ke7 Nf6 Qc4 Qd3 Bg7 Rb1 Qe8 Ba3 c1B Rb4 Bb2 Rh2 Qc1 Qc5 Nb6 Ng4 Nc4 Qf5 Bc8 a6 Ne3 Qa5 Qe1 Be2 Kd8 e7+ Kd7 Nde6 f1Q Bf3 Qfe2 a7 Rb8 Kf4 Nf6 Bb7 Rf8 h8B Rf7 h7 Nfd5+ Ke4 Rf1 Rh6 Nf4 Rh2 Bf8 Bd4 Bg7 h8R Rf3 R8h6 Rf1 Bd5 Ba6 Be5 Rb6 Bb7 Bc4 Bf6 Ba2 Bc3 Bb1 Bf6 Qf8 Bc3 Ra6 e8B+ Ke7 Bb5 Qe8 Bc4 Kd7 Qe5 Bc1 Ba1 Ra4 B3b2 Ra2 Ba3 Bb2 Qa5 Ned5+
4b2q/P4R2/Bp3nkP/2pB1q2/nK2Qb2/2R3b1/B1Q1R1Q1/B1NNr1rn w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 f5 Kd2 Kf7 e4 g5 a4 g4 h4 f4 h6 g3 a5 b3 Kc3 c6 d6 g2 d5 f3 h5 b6 e6+ Kf6 d7 f2 e5+ Kf5 h7 b2 e7 Nf6 e8B Qc7 d8Q Ra6 e6 Qe7 d6 Qb7 e7 Bd7 h6 Ne4+ Kb4 Ra7 a6 Qc8 Rh2 Bg7 Qc2 Be5 Ra3 Bf4 Bf7 Kf6 e8B+ Kf5 Ba2 Rc7 a7 Rg8 h8R Rg5 Ba6 f1Q Ne2 g1B Rh7 Bf2 Qe7 B2g3 Bef7 Be8 Bfd5 Nd7 Rc3 Nf6 d7 Kg6 d8Q Qf3 Qe5 Re7 Rf7 Qd3 Qe6 Nf2 Qe4+ Qf5 Bd2 Nh1 Nc1 Qe3 Qg2 Qe5 Be1 Re6 Qe7 Qb8 Bf2 Re1 Qee4 Qa8 Bd4 Qb8 Na3 b1N Nc4 Qd8 Nb2 Qa8 Rc4 Nc3 Nd1 Na4 Rc3 Re3 Qgd2 Bd7 Bb7 Bh4 Rb3 Qh8 Ba1 Re1 Rc3 Be8 Ba6 Rgg1 Qde2 Bf2 Q2f3 Bh4 Re2 Bhg3 Qg2 c5+
rNBNR1QK/p3R1qB/2QRr2P/P2n3b/1kn4N/2q4Q/2r3pb/6qQ w - - 0 1 illegal: No possible last move, all moves rejected
b1BB3k/pR4N1/1P2Pq1n/Kr3nb1/1p3B2/QR2Nq2/3RN2R/n2rrQ2 w - - 0 1 illegal: No possible last move, all moves rejected
2Q5/NQ1Q3N/Rn6/1bN1Q1rB/Pbqn4/kP4pn/3R1pK1/B1rnn1B1 w - - 0 1 illegal: No proof kernel
2bKRbR1/n4r2/2Qq1b2/4PpN1/Qp1Q4/1P1b2rR/Nb1Q1n2/NkB4B w - - 0 1 illegal: No possible last move
q4nB1/b4N1Q/7p/1RnkP3/BQR1R1Q1/1b1pr3/PB1B1Nn1/2Knn1r1 w - - 0 1 illegal: No proof kernel
nQ2RN2/Q1B1q3/2rP1r2/1KN2Pn1/B1pp3k/3Q1rb1/1rR2r2/Q3Nb1B w - - 0 1 illegal: No proof kernel
1nr1r1k1/QRQR1r2/1r1p4/1bBR1r1n/Bpb2q2/N7/1NPPBRK1/2Q5 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 h4 f5 exf5 gxh4 a4 Bg7 a5 Be5 Nf3 Bc7 Ng1 Bb6 axb6 Ba6 Ne2 Bb7 Ng1 Bc8 g4 Kf7 f4 h5 Kf2 a5 b7 e5 c6 e4 f6 a4 f5 a3 c7 a2 g5 d6 g6+ Kf8 g7+ Kf7 Na3 e3+ Kg2 e2 Rb1 a1R Nf3 e1R Be2 Rf1 Ne1 Bd7 c8Q Qf8 Qc7 Ra7 Rb3 Rb1 Nd3 Rf3 Nb2 h3+ Kg1 h2+ Kg2 h4 Re1 Na6 b8Q h1R Rd3 Re3 Rd5 Re8 Rf1 Rc8 Rf2 Rf1 Qbb6 Rb7 Qa7 Nb8 Qe1 Qe7 Qd1 Qe3 Qe1 Qf4 Qd1 Ne7 g8B+ Kf8 f7 Ng6 Qe1 Kg7 f8R b4 Qd1 Rb6 Rd8 Rh5 Bf7 Bb5 Be8+ Kg8 f6 Rf5 Rd7 Re1 Nd3 Rb3 Bb2 Rc3 Qc1 Rcc6 Qcb7 R6c7 Bd4 Bc4 Bc5 Bb5 Rh7 Rf7 Qc7 Bc4 Ba4 Bb5 Bf3 Ree8 Nb2 Bc4 Be2 h3+ Kg1 h2+ Kg2 Rff8 Rd7 h1B+ Kg1 Be4 Kf1 Bed3 Kg1 Ne5 Kg2 Ng4 f7+ Kg7 Qg1 Nf6 Qh1 Nh5 Qc1 Rg8 f8R+ Re7 Qa1 Ref7 Qc1 Bb5 Re8 Bdc4 Ree7 Rge8 Qd8 Na6 Rb7 Kh7 Qc7 Kg8 Rd7 Nb8
bRQrn3/6k1/Rp1N2P1/B1PpbB2/K1N3B1/n1R3r1/2b1b1q1/2BQ1Qb1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 a4 h5 c4 e5 Kc2 d5 Kb3 e4 f4 b6 g4 h4 a5 e3 a6 e2 c6 e1B c7 h3 f6 h2 f5 Bg7 g6+ Kf8 a7 Qe8 f7 Rh6 g5 Rh8 Nf3 Nh6 Nfd2 Be5 g7+ Ke7 g8R Nd7 f8B+ Kf7 f6 Bb7 c8B Ng4 Be2 Rh3+ Ka4 b3 Bb4 b2 c5 Bf2 Nc3 b1B Ba5 Rg3 Nce4 Bg1 Nc4 Ne3 Bg4 Nc2 Bf5 Rb8 a8Q Na3 Rh8 Qg8 Ned6+ Kf8 f7 Nf6 Bce6 Re8 Qc8 Ba8 Bg4 Rd8 Bef5 Ne8 g6 Kg7 Ra2 Qh7 Rc2 Qh3 Rc3 Qg2 Rf8 Be3 Rf1 h1B Rf2 Qg1 Ra2 Bf3 Ra1 Qg2 Ra2 Be2 Rg8+ Kh6 f8Q+ Bg7 Ra1 Bc2+ Kb4 Qf2 Qd7 Nf6 Be4 Rb8 Qf5 Qg1 Qff1 Nb1 Bef5 Qg2 Kb5 Re8 Bb4 Rb8 Ra7 Rc8 Ba5 Na3+ Kb4 Re8 Ra6 Rb8 Bb2 Bg1 Qe8 Rc8 Qe6 Bh8 Rd8 Ne8 Bc1+ Be3 Qd7 Be5 Qc6 Kg7 Qb7+ Rc7 Rb8 Bg1 Qc6 Rd7 Qc8 Bb1 Kb3 Rd8 Ka4 Bc2+
4r2k/bR1KP1b1/NR1nN3/B3pb2/1Bq2n2/1Q2pPb1/Q2RbNB1/5R1r w - - 0 1 illegal: No proof kernel
3b3b/BBQ1p3/Nq4nk/1r2rBb1/n1bPKbQ1/BR6/Q2pN1RP/5N2 w - - 0 1 illegal: No proof kernel
Q3nk1B/b2p1bbn/2RN2rP/p1Qqb2Q/5K2/4N1PR/b5Q1/rN1R1B2 w - - 0 1 illegal: No proof kernel
2rK1nR1/1r6/1BQ1Q1N1/1bn5/2pQ1pPr/4qBnk/Q2bNBNP/5r1R w - - 0 1 illegal: No proof kernel
5b1q/QR3B2/B1nk2bQ/1rnN1r1n/QPPn1RN1/4p2Q/1B2pK2/N6b w - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 dxc5 h5 axb5 Rh6 gxh5 Rh8 h4 g5 f4 a5 b4 d5 f5 Kd7 c6+ Kc7 h6 e5 f6 a4 h5 e3 h7 a3 f7 e2 h6 d4 b6+ Kd6 c7 d3 b7 a2 Rh4 g4 Kf2 d2 Nc3 Ra7 Nh3 Na6 b8Q Rb7 Bb2 Ne7 Qa7 Rg8 h8Q Rg5 h7 Nc5 Nd5 Bf5 c8B Nc6 Be6 Rb5 c3 Qf6 Qda4 d1B Qg7 Qh6 h8Q Bg6 Qgh7 Qh5 Qh6 Bb3 Rd1 a1N Rd4 Nc2 Rf4 N2d4 Q8h7 Bg7 f8N Rf5 Nd7 Bf8 Bf7 Bc2 Qh8 Be4 Q8h7 Bh1 Qh8 Qg5 Rh5 Qd8 Rg5 Nb7 Nc5 Qb8 Nb3 Nc5 Na1 e4 c4 Rf6 Re5 Rf5 Re7 Qe8 Rb7 g3+ Ke1 g2 Nf2 g1N Ng4 Qe5 Kf2 Qf6 Q8h7 Qh8 Qh3 Nde6 Q7h6 Nf3 Bg2 Ng7 Ne5 Be7 Rb6 Nd7 Qg3 Rg5 Bh3 Nc5 Bc8 Nh5 Ng4 Nd4 Qh3 Rf5 Ba6 Bf8 Rb7 e3+
1kBn1nN1/6Q1/3r1BBb/3n3P/Npp3NR/Q1r1q3/4P1nR/K2R1bbN w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 g5 Kc2 b5 Kb2 f5 h4 c5 a4 Kc7 e6 c4 h6 g4 d6+ Kb7 d5 f4 e7 b3 e8B b4 a5 g3 h7 g2 d7 f3 a6+ Ka7 d6 f2 Nh3 g1B Bg6 Be7 Qd4+ Qb6 d8N Nh6 d7 Nf7 Bg5 Rg8 h8R Nd6 Bf6 Rg7 Rh2 Rf7 Nc3 Bf8 Rd1 Bh6 Ka1 Nb7 Na4 Rf8 Bg2 f1N Nf7 Rd8 Ne5 Ne3 Ng4 Qc5 Bd5 Ng2 Nhf2 Qb6 Be6 b2+ Ka2 b1N Ka1 Qc5 Nh1 Nc3 Qe5 Qe3 Qg5 Re8 d8N Nd5 Nf7 Nd7 Rh7 Kb8 a7+ Kc7 Rh8 Nf8 Bef5 Rb8 a8Q Nd8 Qa7+ Bb7 Bc8 Re6 Qe5+ Rd6 Qb2 Ra8 Qa3 Ra6 Qd4 Kb8 Qdb2 Rd6 Rh7 Bf4 Nfh6 Ra7 Ng8 Bh6 h5 Ba8 Re7 Bc6 Re4 Bd7 Ne5 Bh3 Rh4 Re7 Ng4 Re4 Nb6 Rd4 Na4 Rd3 Qd4 Rc3 Qe5 Ngf4 Qe7 Bf1 Qg7 Ng2
1N2R3/bB3K1q/1rbRQ2R/3b2Rp/Nn3BN1/r2P1rn1/Q3P2p/2b2B1k w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Kd7 Kf3 f5 Kf4 c5 b4 h5 g4 a5 d6 Ke6 d3 c4 b6 a4 b5 a3 d7 h3 b7 a2 g5 h2 g6 c3 g7 c2 b6 Nf6 Kg5 f4 Kg6 f3 Bf4 c1B Nc3 f2 Qa4 Ne4 Nh3 Bc5 Rg1 Qe7 d8R Na6 b8R Nb4 b7 Ra6 Rg5 Rf8 g8Q+ Rf7 Qae8 Bd7 Na4 Ng3 Rbc8 Kd5+ e6+ Kd4 b8N Ba7 Rc6 Rb6 Rd6+ Nd5 Rb1 Bc6 Rb5 Qd7 e7 a1R Ra5 Rf5 Ra6 Ra3 Qe6 Rf7 Qg8 Rf8 e8B Qb7 Bg2 f1B Nf2 Qe7 Bh3 Bg2 Ng4 Bh1 Bf1 Qd7 Bd2 Rf3 Bf4 Bg2 Qgf7 Qc7 Kg7 Qd7 Kf8 Bh1 Qg8 Qh7 Bd7 Bg2 Bc8 Bh1 Re8 Bg2 Qf5 Bh1 Rh6 Nb4 Qa2 Bg2 Bb7 Bh1 Nf6 Bg2 Qfe6 Bd5 Be5+ Ke3 Bf4+ Kf2 Ng4+ Kg1 Nd7 Rb5 Rd6 Rb6 Nb8 Kh1 Rg7 Re3 Kf7 Bge4 Ba8 Rf3 Bb7 Qh8 Rg5 Bc6 Na6 Bed5 Nb8 Qh7+
Rr2Q1b1/r4b1N/2BB3r/2bQ3p/pRbn2k1/n1K1P3/PR1qN3/2Q1BB2 w - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 e5 c4 exf4 b4 d5 cxd5 Nc6 bxc5 Nb8 d4 Kd7 Kd2 a5 g4 b5 c6+ Ke7 g6 Kf6 g5+ Kf5 d6 h5 e3 a4 d7 f6 c7 f3 d5 f2 g7 b4 g6 b3 d6 b2 Nc3 b1R Nge2 Bb7 c8B Ra7 Ne4 Na6 Ng5 Nb4 Nh7 Nh6 g8R Bd5 g7 Nc2 Rh4 Bf7 Rb4 Na3 Kc3 Be7 Rb2 Kg4 Bd2 f5 Qc1 f4 Bb7 f3 Bc6 Nf5 Be1 Nd4 Rb4 Rb2 Rb1 Bf8 Ng5 Rh6 Nh7 Qg5 d8Q Qd5 d7 Bc5 Qe8 Qd6 Rc4 Rb8 d8B Qd5 Be7 Qd8 Bg2 f1B Bd6 f2 Rb2 Qd7 Rcb4 Qd8 Nf4 B1c4 Ne2 f1B Rf8 Bcd5 g8Q+ Kf5 Nf4 Bfc4 Ne2 Qd7 Bf1 Be6 Qh8 Kg4 Qe5 Bg8 Qd5 Bef7 Qee5 Qf5 Rc8 Qb1 Qe8 Qa1 Qc2 Qd1 Qc1 Rb5 Ra8 Rb6 Qa1 Rb8 Qc1 Qd2+
kn1B1r2/n5Q1/4N3/BNBrp1n1/7R/1PPB1bQ1/RpbK1R2/N3bqb1 w - - 0 1 illegal: No possible last move, all moves rejected
R3n1R1/1r2RN1R/5QN1/3pBB1K/qbQp1NrQ/n5b1/1P2b1nP/3b3k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 c4+ Ke4 e6 g5 c5 a5 b6 d5 c6 a4 b7 a3 h6 f5+ Kh5 f4 c7 f3 e7 f2 e8R+ Be7 h7 a2 Na3 g4 Qe1 g3 Bf4 g2 Be5 Nc6 b8Q Nb4 Nh3 g1B Qb6 Rb8 Qf6 Nc2 Nb5 Rb7 Nf4 Qd7 Bh3 f1B Qeh4 Bf2 Rg1 Na3 Rg7 Bb4 Ree7 Bg3 Nd6+ Ke3 Nf7 Kf2 e4 Kg1 Be6 Qa4 Bf5 Bd7 c8Q Kh1 Qc4 Bb5 Re1 a1N Re2 N1c2 Rg2 Nh6 Rg8 Ng4 Ra8 Rd8 h8N Nce3 Nhg6 Rdd7 Rh8 Be2 Rh7 Bc6 Bd6 Bd1 e5 Bb5 e6 Rd8 Be5 Rg8 Rc7 Rg7 e7 Rg8 e8R Rg7 Rc2 Ng2 Ra8 Rg8 Re7 Ba6 Qb3 Bae2 Rcc8 Rg7 Qc4 Rg8 Qfc6 Rg7 Rg8 Nf6+ Kh6 Ne8 Qcf6 Qc6 Nf8 Rg5 N8g6 Rg4 Kh5 Qa4
b2brR2/3r1B1R/Q1N3B1/1P3rpK/1n3bn1/PQ1R3Q/bBpNk1q1/7B w - - 0 1 illegal: No proof kernel
r1B2B2/B4KNk/1br1Nn1p/R1B4P/1RnqN1p1/8/b2Q1rPn/1Q2r2R w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 Nc6 b4 Nb8 a4 b5 axb5 axb4 Ke2 Kf7 Kd3 e5 Ke4 c5 d4 g5 f4 Kg7 h4 h6 b6 g4 f6+ Kg6 f5+ Kh7 h5 b3 b7 c4 d6 c3 Kd5 e4 d7 c2 Ke6 e3 d5 e2 d6 e1R+ Ne2 b2 f7 Qc7 f6 Ra7 Nc3 b1R Be3 c1N Nf4 Na2 Ba6 Qb6 Ne4 Nc6 b8R Nab4 Ra5 Rb2 Qb1 Qd4 Bg1 Be7 f8B Ra8 f7 Nd3 Rb4 Nf6 Be3 Bb7 d8N Nce5 d7 Bc5 Bf2 Bb6 Bc5 Rc8 f8B Nc4 Kf7 Bd5+ Nde6 Rc6 d8Q Ra2 Bc8 Nde5+ Ke7 Rd2 Ng7 Nf3 Nfe6 Nh2 Bg1 Rf2 Kf7 Na3 Qd6 Ba2 Qf4 Nc4 Qd2 Nf1 Bh2 Rg8 Bb8 Nh2 Ba7 Rh8 Bfe7 Re8 Bf8 Rd8 Bd7 Rb8 Bc8 Ra8
3BkN1r/3nrRQ1/r2BK1P1/1B3R1Q/n1r2qRN/1p5R/Pn5p/1bb1Q3 w - - 0 1 illegal: No possible last move
2Q1BBbN/3nn1b1/3n1kPN/3r2RK/NQP1p2b/p4Br1/1R6/2QBb2q w - - 0 1 illegal: No proof kernel
B2b1k2/2r2b2/2NR2P1/q2B3P/Rn1r1r2/1R1QN3/1p2pQrB/n1nR1K1Q w - - 0 1 illegal: No possible last move, all moves rejected
b3NQ2/1B3K2/2n1NP1p/r3n3/1qRBknQR/3NNbbn/P1pr3R/1Q6 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 g4 h6 f4 c6 f6 e6 g6 b3 f5 b2 f7 b4 g7 b3 g5 Qc7 g6 Bd7 Nc3 b1N Nge2 b2 Nf4 Be8 Rh2 Nf6 g8N Nfd7 g7 Ra5 Nd3 Qb7 Bg2 Ne5 Nf6 c5+ Ke4 c4 g8Q Qb3 Qgg4 Qb4 Rh4 Be7 f8Q Bh5 Qb3 Nbc6 Nd1 Rh7 Ne3 Nc3+ Kf4 b1B Bb2 Bc2 Rc1 Ne4 Bd4 c3 Qb1 Nf2 Rch1 Bd1 R1h2 c2 Be4 Bf3 Ne8+ Kd7 f6 Bd6 Nc1 Bc7 d6 Bg6 Bd5 Bge4 Nd3 Rg7 Qh3 Rg2 Qg4 Kc8 d7+ Kb7 d8R Bd6 Ba1 Kb6 Rc8 Kb5 Nb2 Kc5 d3 Kd4 Rc7 Na7 Bb7 Nac6 Rc8 Nd1 Rc7 Rd2 Rc8 Nf2 Rc7 Kc3 d4 Bd5 Rc8 Bde4 d5 Kd4 Qg5 Bc7 d6 Bb8 d7 Nh3+ Kg3 Bc7 d8N Bd6 Rh5 Bd5 Kh4 Ke4 Qg4+ Nf4 Qfg7 Ne7 Nc6 Nc4 Rb8 e5 Ng2 Bc5 Nd8 Kd4 Ba6 Ba8 Rc8 Ba7 Rc5 Nc6 Bb7 Bb6 Qf8 Ba7 Qg6 Nh3 Qg4+ e4 Ne6+ Kc3 Qf5 e3 Qg4 e2 Nd3+ Qb2 Qe1 Bb8 Qb1 e1N Ne3 Bf4 Rb5 N4e5 Rb4 Rg2 Rc4+ Kd2 Nd5 Qb4 Bd4 Rf2 Rg5 Ng2+ Kh5 Nd7 Kg6 Bg3 Rh5 Nde5+ Kg7 Ngf4 Rh4 Rg2 Ne3 Re2 Nc1 Rg2 Ne2 Kd3 Nc1+ Ke4 Nd3 Rd2 Kg8 Nd7 Kf7 Ne5+
3r1QBQ/r4R2/N4pKb/Q2N3p/2BN1P2/2r2N2/2nq1RPn/1b1kr1bB w - - 0 1 illegal: Other
2RBQ3/3b2nn/2N1npQr/P1Bp4/P4K2/1rN1RN1R/B3qk1n/3bR1b1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 Bc5 bxa5 Bf8 Kd2 Ke7 h4 Ke6 c4 Kf5 e4+ Kf4 a4 Kg3 h6 g5 c5 d5 h5 b5 c6 d3 Ke3 d2 c7 b4 e6 b3 e7 g4 e8Q b2 e5 Bd7 c8N Ne7 e6 Na6 h7 Nc7 h6 Rb8 Bc4 Rb3+ Nc3 b1N Qc2 d1B Ba3 Nd2 Na7 Ne4 Nf3 Ng5 Qg6 Kg2 Re1 g3 Nc6 Nf5+ Kf4 Kf2 e7 g2 Re3 g1N Bc5 Ng7 Ra3 Qb8 Ra1 Qb5 Ra3 Rb1 Ba2 Qe2 Rb3 Rb2 Rb8 Rb3 Rc8 Rg8 h8B f6 h7 Nf5 Bg7 Rh8 Bh6 Ng7 Bb6 Na6 Bc7 Nc5 Bd8 Nce6+ Kg4 Rg8 h8R Nh7 Bf4 Nhg5 Rh1 Rh8 Bd6 Rh6 Rh3 Nh7 Bc5 Qb5 Qef7 Qe2 e8R Bd6 Re7 Bc7 Qe8 Bh2 Rh5 Nh3 Rh4 N3g5 Rh5 Bg1 Rh3 Ne4 Bcb6 Ng3 Bc5 Nc7+ R7e6 Nf1 Kf4 Nh2 R6e5 Nb5 Re7 Nd4 R7e5 Qd3 Re1 Qe2 Re3 Nde6+
2NB1N2/q1rQ1B1N/4p1p1/6RR/rP2k1PQ/br2n3/Q2bB1r1/BKb3n1 w - - 0 1 illegal: No extended proof kernel
B5Q1/RbRrn3/N2P2N1/Q1B1b1N1/QN1P1rpK/pr2qb1n/2r3R1/5k2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 h4 Kf6 d4 Kf5 e4+ Kf6 b4 c5 h6 g5 h7 a5 h5 c4 b6 f3 Kg3 c3 b5 c2 d6 f2 b7 g4 e5+ Kf5 h6 Ke4 b6 f5 e6 a4 e7 f4+ Kh4 f3 Nh3 Na6 b8N Nb4 b7 Qe8 Rg1 Nd3 Na6 Rb8 Na3 Bg7 Qd2 Be5 Bg2 f1R Qa5 Nf2 Ng5+ Kd3 Bd2 Ke2 Bb4 c1R Nc2 Nh3 Bc5 f2 Ncb4 Rc3 Bd5 Rcc1 Rg2 Rc2 Rc1 a3 Bc6 Ra8 b8Q Ra7 Ba8 Bb7 Qbd8 Bf3 Qa4 Rd7 Qda5 Qb8 e8R Ne7 Rg8 Qe8 Rg7 Rf8 h8Q Rf4 h7 Bb7 Ra1 Rb1 Qg8 Rb3 h8N Bf3 Ra2 Ke1 Rh7 f1B Ng6 Bb7 Rb2 Be2 Rb1+ Bd1 Rc1 Kf1 Bb6 Re2 Rc7 Rc2 Bc5 Bdf3 Rf7 Bbd5 Ra7 Bb7 Rf8 Qf7 Rc8 Qf5 Rc6 Qd3 Rc7 Qe3
1N1k2nN/6Rr/2QP1RP1/3Q1p1N/5B2/b2N3n/BbnqKBbp/n5rQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 c5 b4 a5 g4 f5 e4 h5 g6 f3 d6 c4 e5 c3 b6 a4 b7 h4 d7+ Ke7 e6 c2 b5 f2+ Ke2 a3 g7 h3 d5 a2 d6+ Kf6 e7 Ra3 e8Q Rg3 b6 Qc7 d8N Ne7 g8Q Rh6 g5+ Ke5 Na3 Bg7 Nf7+ Ke6 Qc6 Bd7 Bf4 c1B Nc4 Nd5 Nb2 Rh7 Nd3 Bgb2 g6 h2 Nh3 Be8 Nh8+ Bf7 Rb1 Nd7 b8B a1N b7 Qa5 Ba7 N7f6 b8N Rg1 Bc5 Ba3 Rb7 Bcb2 Bg2 f1N Bf2 Nfe3 Bf3 Rg2 Re1 Rg1 Qb1 Nec2 Ra7 Nh5 Be4 Ne7 Bd5+ Kf6 Bb3 Bd5 Ba2 Bg2 Qgd5 Ng8 Re7 Qb4 Re6+ Kg7 Re7+ Kf8 Rg7 Qc3 B4e3 Ne7 Kd1 Ng8 Nhf4 Rh1 Qc1 Nhf6 Nh5 Ne4 Bf4 Ng5 Qb1 Nh3 Qc1 Bf1 Re6 Bg2+ Ke2 Qa5 Qc3 Rf1 Rf6+ Ke8 Qcc6+ Kd8 Qe3 Rb1 Qc1 Qb4 Qh1 Rg1 Qf7 Qc3 Qfd5 Qd2+
2K4k/B1nn3r/RQP5/N4Pb1/BR1NNQr1/p3nQ1n/1R3p1b/1q1b3N w - - 0 1 illegal: No proof kernel
1b1BQQb1/2r1bR2/1p1PbR2/5B2/n1rRN1N1/1q2p2n/k4PQ1/N1Q3Kn w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kd7 d4 Kd6 h4 g5 a5 e5 a6 c5 h6 c4 a7 b3 h5 b2 f6 g4 h7 e4 f7 c3 h6 b6 Nf3 c2 Bh3 g3 Kf1 g2+ Kg1 Qc7 Nc3 b1B Bf5 Qe7 Nd2 Ba2 Nb3 Na6 Bg5 Be6 Qc1 Rc8 a8Q Rc4 Rh3 e3 Rf3 Nf6 Rf4 Bg7 f8Q Ne4 Bf6 Rg8 h8Q Ng3 h7 Nh1 Qae8 Bh6 Qhg7 Nc5 h8N Na4 Ng6 Rh8 Bh4 Rh7 Ne5 Bg5 Rf3 Bf4 Ng4 Bg3 Qd1 c1B Ne4+ Kc7 Qd2 Ba3 Qc1 Qf7 d6+ Kb7 d5 Ka6 d7 Kb5 Bd8 Be7 Qg5 Bb8 d6 Kb4 Rb1 Rg7 Na1+ Bb3 Rb2 Ka3 Rd2+ Nb2 Rd4 Ka2 Bg6 Qg8 Rf6 Na4 Bf5 Rf7 Bc7 Rh7 d8R Rg7 Rd7 Rf7 Kh2 g1N Bd8 Rh7+ Nh6 Nh3 Qg2 Rc7 Ng4 Rh5 Bg6 Rhc5 Bf5 Rc4 Qg7 Bf8 Rdf7 Be7 Qgf8 Bd7 Rh6 Rb4 Rg7 Qc4 Rf6 Qc3 Ng5 Bg8 Ne4 Rbc4 Rh7 Bde6 Rhf7 Ng5 Kg1 Qb4 Rg7 Qb3 Rgf7 Nh3+
2BN1rk1/3rB3/p1Rn3Q/1B5n/b3QRp1/1nN1B3/1nNbP1rP/2q2K1Q w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 b4 g5 d4 c5 e6 f5 b6 c4 b5 a6 d6 g3 b7 f4 d5 f3 b6 c3 e7 Kf7 d7 g2 d6 c2 Be3 c1N Ra4 Nh6 e8B+ Kg8 Nc3 Nc6 b8Q Nd4 b7 Ndb3 Rf4 Qc7 d8B Rh7 d7 Bb4 Be7 Nf5 d8N Nd6 Bb5 Bd7 Qc2 Rf7 Qe4 Rf8 Qc8 Ra7 b8Q g4 Qb6 Be8 Qca8 Qc8 Qac6 Rd7 Qa8 Nf7 Qh6 Nd6 Nh3 g1R Nf2 Qc7 Nd3 Rg2 Qac6 Ba5 Nb4 Qc8 Nc2 Nd3+ Kd1 Nb2+ Ke1 Rg3 Bh3 f2+ Kf1 Qc7 Bg2 Bb4 Bf3 Rg2 Qa8 Ba5 Qe5 Qc5 Bb7 Qa3 Qd4 Qa1+ Qd1 Qc1 Bc8 Bb4 Qe4 Ba5 Na2 Bd2 Nc3 Ra7 Bd3 Ba4 Bb5 Rd7 Na1 Rf7 Na2 Rg3 Rg1 Rh3 Kg2 f1N Kf2 Qc2 Qb1 Ng3 Rc1 Qd1 Rc6 Rf8 Nc2 Nh5 Nc3 Qh1 Qg1 Rg3 Qgg2 Qc1 Qh1 Be1+ Kf1 Rg2 Bg5 Nd4 Bf6 Nb3 Be7 Bd2+
nR2r2b/2Q3P1/kn3BKR/B1Qn4/NP1q1B1r/1pbb4/1n1p4/1NR2B1N w - - 0 1 illegal: No proof kernel
4nQR1/B2br1P1/bn1K1N1p/P1B1r2q/pQ1NRb2/Qb5B/Nr6/N6k w - - 0 1 illegal: No proof kernel
2NB4/3r2pK/bBn1rR1R/p5QR/1N2P3/k1bBRQn1/1n3qP1/2b1N2n w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kb4 d4 a5 d6 c5 b6 f6 h5 f3 b7 f2 h6 c4 d7 c3 Kf5 c2 Kg6 f5 e4 f4 d5 f3 d6 Be7 Nd2 Bg5 Nc4 Qf8 d8Q Ra7 d7 Kb3 Bd3 f1N Be3 c1B Rh5 f2 Nf3 Nc6 b8N Ba6 Bb6 Bc8 Na6 Nb8 Nd6 Ng3 Ne1 f1N Nb4 Bb7 Nc8 Bgd2 Qg5 Bc3 d8B Nf6 Qg8+ Nd5 h7 Bf6 Qf7 Be5 Qf3 Nc3 Ra2 Rg8 h8R Nh1 R8h6 Ba6 Kh7 Rd7 Ra1 Na4 Rb1 Bd2 Rc1 Bef4 Rcc6 Nfg3 Rcf6 Qc5 Nd5 Ka2 b4 Re8 b5 Ka3 Nb4 Qe3 Bbc7 Be5 b6 Nb2 b7 Bec3 Bb6 Nc6 b8R Qf2 Rb7 Rf7 Rd7 Bc1 Rd4 Re6 Rc4 B3d2 Rc2 Bc3 Re2 Rb7 Re3 Rd7
N3Q3/k1b1NPnP/3rR1R1/1BnprBN1/1R2n3/B5bN/1n5p/K1qQ1b2 w - - 0 1 illegal: No proof kernel
n2nr2b/n1r1PRnB/4k3/1P4B1/1N3b2/Qp1BNp1N/1q1Q1K2/R1QQ3b w - - 0 1 illegal: No proof kernel
r2b2b1/B2bpn2/2n2R2/nqP1R1RB/2QN1P2/1Q4KN/r2k3p/R1N3Qb w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 b4 h5 g4 d5 f4 a5 Kf2 h4 g6+ Kf6 g7 h3 b6 h2 b5 d3 b7 d2 b6 d4 Be2 a4 Nh3 a3 Qg1 d1B Be3 d3 Nc3 d2 Na2 Nh6 g8Q Bb3 Kg3 d1B Nc1 Nc6 b8Q a2 b7 Qe8 Ba7 Nf7 c5 Bg7 Bf3 Bd7 Be2 Nfe5 Qc4 Bdc2 Bf3 Be4 Bd1 Rf8 Bf3 Bh8 Bd1 Nf7 g5+ Kg7 f6+ Kg6 Bh5+ Kf5 g6 Rg8 Rb1 a1N g7 Ba2 Rb2 Nb3 Re2 Rf8 g8R Nba5 Qc8 Bf3 b8N Bg2 Qb7 Bd5 Qgd4 Bg7 Rf1 Bh1 Qg1 Bh8 Qbb3 Bg7 Na6 Qb8 Nb4 Qb5 Nc2 Bh8 Bb6 Ra7 Re6 Rfa8 Rg6 Ra6 Ba7 Nb7 Qbb4 Ng5 f7 Bg7 f8R+ Bf6 Qe2 Ra4 Rfg8 Be5 Nb3 Bc7 Ra1 Nba5 Nc1 Bd8 Qc3 Bad5 Qec4 Ra2 Re1 B5e6 Q3b3 Bed5 R8g7 Bg8 Re4 Nf7 Ree6 Nfe5 Nd4+ Ke4 Ref6 Nf7 Rf5 Nh6 Rgf6 Nf7 Rgg5 Rf2 Nd3 Ke3 Re5+ Kd2 Ra4 Rf1 Ra3 Rb1 Nc1 Rb2 Ra1 Ra2
1Nb3K1/bR2p3/Q2np1R1/R2BPn1k/2R2P1r/1b4rN/br2q3/2B1NBQ1 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 g4 Qd5 g3 Qe6 fxe6 hxg3 Kf7 g4 Ke8 g5 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 Kf7 Ke3 Kg6 Kf4 h5 g4 a5 b4 d5 e4 a4 c4 d4 c6 a3 c5 d3 b6 a2 b5 h4 c7 d2 c6 d1B e5 h3 b7 h2 b6 Rh6 Na3 Ra7 Nh3 Qe8 Nc2 Nf6 Ne1 Nbd7 b8R Rh7 b7 Kf7 g6+ Kg7 Kg5 Rh4 f4 Ra3 Rg1 h1B Rg2 Nd5 Rc2 N7f6 Rc4 Bd7 c8B Bb3 c7 Ne3 Nd3 Nf5 Ne1 Bdc6 Bd7 Bcd5 c8Q Bhf3 Ba4 Qb5 Qc6 Ne8 Qa6 Qb4 Bb5 Qd2 Ba4 Ned6 Bc6 Bde4 Bd5 Bb1 Ra4 Qe2 Rc4 Kh8 g7+ Kh7 g8R Bg7 Rbc8 Bh8 b8N Bh1 Rg6 Bg7 Ba8 Bb7 R8c7 Bc8 Ra7 Bd3 Rb1 a1R Bd5 R1a2 Rb7 Rb2 Ra1 Bb1 Ra2 B3c2 Ra1 Rg3 Ra5 Ba2 Rh6+ Kg8 Kg6 Bf6 g5 Kf8 Kh7 Bcb3 g6 Bg5 g7+ Kf7 Kh8 Bf6 Rh5 Kg6 Kg8 Bg5 Rh7 Rhg4 Rh5 Bh4 Rg5+ Kh6 Rg6+ Kh5 Qa7 Rc3 Qa8 Bf2 Qa6 Rcg3 Kh7 Bd4 g8Q Rh4 Rf6 Rd3 Qg1 Rg3 Rg6 Bf2 Kg8 Ba7
Rn1B2r1/1Nb1pPRn/Qr1RQ3/1pN1q3/Q1rn1NB1/R3P3/b5n1/k3K3 w - - 0 1 legal: proof: g4 a5 c4 g5 h4 d5 hxg5 f5 gxf5 Kd7 cxd5 Ke8 b4 axb4 d4 Kf7 f4 h5 a4 b5 f6 c5 f5 c4 a5 b3 a6 b2 e3 c3 a7 c2 g6+ Ke8 d6 Kd7 f7 Kc6 d7 Kd5 f6 h4 g7 h3 Ne2 Kc4 d5 Kb3 d6 h2 Bh3 Rh6 Bg4 Qc7 d8R Be6 d7 Qe5 Rg1 h1R Nbc3 b1N Nf4 R1h4 Bd2 Kb2 Ra3 c1N Qa4 Ne2 Ne4 Ba2 Ba5 Nd4 Nc5 Nd2 Bb6 Ka1 Qa6 Rg6 Rg2 Nh6 g8Q Bg7 f8R Nhf5 Qe6 Ne4 f7 Ng5 Rg8 Bh8 Rd2 Bf6 Rg7 Nh7 Rdg8 Bg5 d8N Rf6 Ndb7 Bh6 Ng2 Bf4 Bd8 Bh2 Nf4 Rg6 Qc4 Rc6 Qe6 Rb6 Be2 Rg4 Qa4 Nh4 Bf3 Rg3 Bg4 Rg2 Rdd3 Rc2 Re8 Rc4 Rd2 Nd7 Rh8 Rb8 a8Q Rc8 Q8a6 Nb8 Bc7 Rg8 Bd8 Qe4 Ng6 Bc7 Nf4 Qe5 Rdd3 Nb3 Rd6 Nd4 Rg5 Rg6 Rf8 Rg8 Rg7 Nd7 Re8 Bb8 Bc7 Rf8 Rc8 Rg8 Bd8 Bc7 Ra8 Nb8 Bf3 Ng5 Bh5 Nh7 Bg4 Ng2+
rn4k1/N2PR3/Qb2q1bp/bBBQB2n/1N2b1N1/P4Q2/1K2r1pQ/6Rn w - - 0 1 illegal: No proof kernel
rK2b3/1R1Pp2n/1N1n2N1/N1RbQpR1/5Q1Q/kr5R/1bPBB1q1/1n2n3 w - - 0 1 illegal: No proof kernel
n1RN1rbK/3pb3/5nB1/k1q1QPNQ/3bRN2/4p1Pb/1BR1r3/nQ2R3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 e5 Ke4 h5 b4 d3 c4 h4 f4 h3 c5 h2 b6 a4 b5 a3 g6 d2 f6 a2 Kf5 e4 f7+ Ke7 c6 Kd6 g3 Kc5 b7 Kb6 c7 e3 g7 Ba3 Kg6 Ka5 f8N Be7 b6 Nf6 g8R Nc6 Kg7 Rh3 b8Q Nd4 b7 Ng4 Bb2 Rh8 Nh3 Nf6 Ng5 Nc2 Qh5 d1N Nfe6 Nc3 Re8 Ncd5 Nc3 Nb6 Ne2 Rf8 Rc1 Na1 Rc2 Ra7 f5 Na8 N2f4 Ra6 Rg1 h1B Be2 Bg2 Re1 Bh3 Bg4 Rd6 Be2 Rd2 Bg4 Ng8 Kh8 Re2 Bf3 Bb4 Bd5 Qe7 Nd8 Qc5 Bf7 Ba3 Bg6 Nf6+ Kg7 Qb5 Re5 Be7 Re4 Qc5 Qa7+ Kb5 b8Q+ Bb7 Qa4+ Kb6 Qb3+ Ka5 c8R Bd5 Qe5 Bg8 Qbb8 Nb3 Kh8 a1B Ba3 Bd4 Bb2 Na1 Qb3 Ka6 Qa2+ Kb5 Qb1 Ka5
nQ5K/Br1pR3/3NRBrP/1p2R1P1/k3qbN1/1b1r1BR1/4Qb2/b1Q3n1 w - - 0 1 illegal: No proof kernel
Q2Q2RN/1B1p1K2/B1rRpQP1/3b3r/2q2B2/2r1P2N/k1n1br2/1N1Bn2n w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 e6 g4 Bh6 h4 Ke7 g6 Na6 g7 Rb8 g5 Ke8 g6 Bg5 hxg5 Ra8 Bd2 Nb8 Be3 Na6 Bc1 Nb8 Kd2 Ke7 Kd3 Kd6 Kc4 h5 b4 f5 b6 a5 b7 d3 b5 f4 b6 h4 Nh3 f3 Kd4 d2 c4 f2 Rg1 Ne7 g8N a4 g7 a3 Nh6 a2 g8B Na6 b8Q+ Qc7 b7 Nd5 Bf7 Ndb4 Bh5 Nd3 c5+ Kc6 g6 Kb5 c6 Kb4 Nf7 Ne1 Bg4 Rh7 Nh8 Rh5 Rg3 Ra7 Rd3 Ra8 Qc2 d1B Bf4 Ra7 e3 Be2 Bg2 f1R Qa8 Rf2 b8Q+ Bb7 Qd8 Qc8 c7 Bd5 Bf1 Rb7 Rd1 Rb6 Qf5 Kb3 Ke5 Rc6 Kf6 Nb4 Kf7 Nbc2 Qff6 Qa6 c8B Qc4 Rd4 Kb2 Bb7 Kb3 Ng5 h3 Rd1 h2 Nh3 h1N Bf3 Be4 Rd6 Bd5 Bg4 Bd3 Bd1 Be2 Nc3 Kb2 Rc1 a1R Nb1+ Nd4 Rc3 Ra3 Rb3+ Ka2 Rb5 Rb6 Rc5 Ndc2 Rc8 Bef3 Bfe2 Rc6 Bd3 Be2 Rb8 Qd4 Bda6 Rb3 Qb6 Qc5 Rg8 Qc4 Qbd8 Rc3
2r2RNb/1np5/1B1N1QBn/q1NB1b1b/P1R5/2P3r1/2k2pQ1/B1n1RbK1 w - - 0 1 legal: proof: f4 a5 g4 e5 d4 h5 gxh5 g5 dxe5 Ra7 fxg5 Ra8 b4 axb4 Kf2 Ke7 e4 Ke6 a4 f5 h4 b5 h6 d5 h7 f4 h5 b3 g6 b4 h6 f3 g7 b2 Nh3 d4 Na3 b1N Kg1 b3 Qd2 d3 Nc4 b2 Qg2 d2 Nf2 d1B Nd6 Ra6 Rh4 Nd2 Nd3 Nb3 Be3 b1B Bb6 Nc6 Rg4 Qg5 Nc5+ Ke7 e6 Kf6 e7 Ke5 e8B Kd4 e5+ Kc3 e6 Be2 e7 Bf5 Rf4 Nd8 Bg6 Nb7 e8R Nc1 Rc4+ Kb2 Rc8 Be7 Re8 Bf6 Rf8 Bed3 Be2 Ba2 Bd1 Bf1 Be2 Bb1 Bd3 Bg4 Bde4 Bh5 Bd5 Qd2 Bgf7 Qa5 Bg6 Ne7 g8N Nf5 Ne7 Rg8 h8B Ra8 h7 Nh6 Bg7 Be5 h8Q Bc3 Be5 Rc8 Qf6 Rg7 Bgf7 Rg3 Ng8 Ba2 Bg6 Bb3 Re4 Bbc4 Rh4 Bcd3 Rc4 Bf5 Bd4 Nb3 Re1 Nc1 Be3 Be5 Bd4+ Kb1 Ba1 Bc3 Qf7 Bf6 c3 Bh8 Kf2 Kc2 Qf6 B1d3 Kg1+ Be2 Kf2 Bf1 Kg1+ f2+
1n1Rr3/1PB1pP1R/k1b2QBQ/3N2Rp/1br5/1N5K/4QR1n/1bNr1q1b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 d5 Kf2 Kd7 Kg3 Kc7 c4 Kb6 b4 a5 c5+ Ka7 g6 d3 b6+ Ka6 c6 a4 b5+ Ka5 b7 h6 f6 d2 f5 a3 b6 d4 g7 a2 c7 d3 f7 Qd7 f6 Qd5 Ne2 Na6 b8R Qh5 b7 Bf5 c8Q Nb4 Qe6 Kb5 Rd8 Ra7 Rh4 Bh7 Kh3 Na6 g4 Nb8 g5 Ra4 g6 Rc4 Bb2 Qc5 Be5 Qf2 Nc1 Qg1 Qh5 d1B Qe2 d2 Bc7 Ba4 Q6e3 d1B Nd2 Ka6 Ndb3 Bc6 Rb1 a1R Rb2 Ra2 Bg2 Qf2 Be4 Ra1 Rh5 Rb1 Rg5 h5 Bd3 Nh6 g8R Bd5 g7 Bc6 Bg6 Qf1+ Qg2 Qg1 Rc5 Rd4 Nd3 Rd5 Be4 Ng4 Qh6 Rd4 Rg5 Rd6 Qd2 Ra1 Ndc1 Qc5 Qd3+ Qb5 Rf2 Ra5 Qd2 Bf3 Bb1 Qd5 Qe2+ Bd3 Bc2 Ra4 Bb1 Rc4 Bc2 Rh7 Rh8 Bh1 g8N Bg7 f8Q Qg2+ Kh4 Qf1 f7 Bg6 Nf6 Rd1 Nd5 Bc3 Qfg7 Bb4 Qf6 Nh2+ Be4 Rg7 Rh7 Rg8 Kg3 Re8 Bc2 Bf5 Be4 Bh3 Bg6 Bg4 Kh4 Bf5+ Kg3 Bfe4 Kh4 Bb1+ Kg3 Qe1 Kh3 Qf1+
1K1rbrk1/QpnQ1Nq1/1BB1r3/4NB1P/3N1p2/Rr2R3/3bb1P1/1N3R1n w - - 0 1 illegal: No possible last move
KNn4r/1p1B3r/N2Bp3/1rRQ1nNP/P3R2Q/R2qR3/2bk2b1/br4B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 a4 g5 h4 c6 d4+ Ke4 f4 g4 f6 b3 f7 g3 d6 b2 d5 e6 h6 g2 f5 Qa5+ Bb5 Qc3+ Kb6 c5 d7 c4 d8R Nc6 h7 Na7 h5 Qd2 d6 Ke3 f6 c3 d7 c2 Nh3 g1R Nc3 b1B Ng5 Re1 Nce4 Bb4 f8B Ne7 f7 Ba3 Nc5 Nac6 Na6 Ng8 Rh4 Rb8 Bd6 Nd4 Ka7 Bb4 f8N Nf5 Ra3+ Bc3 Rc4 Nge7 Re4+ Kf2 Qg4 Qd3 Qh4+ Kf1 Bcf4 c1R Bh2 Ba1 Bg1 Bc2 Re3 Rb1 Bc6 Rg8 h8R Rg7 Rg8 Rb3 Re8 Rc1 d8Q Rb5 Nd7 Rh7 Rg7 Rcb1 Qa5 R5b2 Qd5 Rb5 Re4 Ne3 Rf8+ Ke2 Rf3 Kd2 Rgf7 N3f5 Rfe3 Ng3 Rff3 Ngf5 Rc3 Ng6 Rc5 Nge7 Nf6 Bd7 Rg3 Be8 Nd7 Rd8 Ndb8 Nc8+ Ka8 Bg6 Bd7 Rdh8 Rf4 Nfe7 Rd4 Be4 Rh3 Bg2 Rde4 Nf5 Rhg3 Qd4 Ra3 Qd3 Rh3 Ra5 Rhe3 Rab5
2bnb3/Pk1N2br/5B1p/2B4Q/n1Q1pBq1/3RP2R/3n1r1K/N2N1BnR w - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 h4 Bh6 h5 Ra6 g6 Ra8 g5 Bf8 g7 Ke8 Nh3 Qd6 Ng1 Qg6 hxg6 Ra7 Bb2 Ra3 Bc1 Ra8 Kf2 Kd7 Kg2 c5 d4 Kc7 a4 e5 a5 f5 e3 b5 d6+ Kb7 d7 b3 d8B b2 d5 f4 d6 f3+ Kg3 c4 d7 h6 Na3 b1N Bf6 f2 d8B c3 Kh2 c2 Qh5 e4 Nh3 b4 Bc7 b3 Bf4 Ne7 g8R b2 g7 Nd5 g6 Rh7 Bd2 c1N Nc2 Nb6 Bb4 Na4 Bc5 Ne2 Ra3 Nd2 Rd3 b1Q Na1 Qd1 a6+ Kc6 a7 Ng1 Bg2 f1B Nf2 Qe2 Nd1 Qg4 Bh3 Kb7 Bg2 Be2 Bf1 Bd6 Rf8 Nc6 g8Q Be5 g7 Nd8 Qc4 Bf3 g8N Bb2 Bh4 Bg7 Nf6 Rb8 Nd7 Be2 Nf2 Bd1 Bf6 Bb3 Qd4 Bf7 Nd1 Be8 Qb4+ Ka8 Rf7 Rb6 Qc4 Kb7 Re7 Rd6 Re5 Rd5 Rg5 Rf5 Rg6 Qf3 Rg3 Qg4 B4e5 Rf4 Rh3 Rf3 Bf4 Rf2+
nRqNK1b1/4Q3/q5N1/Qq1nP2P/Q3B3/rBqp1rp1/2R2b2/kBB2R2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 a5 b4 g5 e4+ d3 e6 d5 h6 g4 h7 f6 Kg6 g3 Kf7 f5 e7 f4 e8B f3 h5 a4 e5 a3 b6 a2 b7 f2 b5 d4 b6 Kb4 c4 d2 c5 Qd6 c6 Qd8 c7 Na6 b8R Bd7 c8B Bh3 b7 Qd5+ Be6 Qc4 Bd3 f1Q+ Nf3 Ra7 Be4 Qc3 Rh2 Bc5 Na3 Ne7 Nc4 Nc7 Nd6 Na8 Bb3 Qb5 Nh4 Nd5 Ng6 Ra3 Rb1 Rg8 h8Q a1Q Qf6 d3 Qe7 Bf2 Qc2 Qbc5 Bea4 d1Q Qd2 Rg7+ Ke8 Be6 Nf7 Qg4 Nd8 Bg8 Bc2+ Kc4 Bab3+ Kb4 Qd1 Rf7 Rg2 Qa2 Ra1 Rf6 Bb1 Qc8 Qg4 Rf3 Qgd7 Qc4 Qa4+ Kc3 Rh2 Qa6 Rg2 Qd2 Rh2 Be3 Rf2 Qe1 Raa2 Qcc4 Rf1 Bf2 Re2 Kd4 Rc2 Qc3 Qa5 Qcb5+ Qd7 Qbb4 Qe7 Qa1 Qa4 Qce6 Rbc8 Qf5 R8c5 Qc8 b8Q Qb2 Rb5 Qa1 Re2 Kc3 Qbc7+ Qc4 Rb8 Qc5 Bd2+ Kb2 Qca5 Qcc4 B1a2 Qac1 Bb1 Q1c3 Bc1+ Ka1 Rc2 Qcb5+
K1N1QBRR/1nb3q1/4R1R1/1BP1r3/2rk1bb1/p5N1/Qp1Bn2P/q5Nb w - - 0 1 illegal: No proof kernel
b2k4/b1qq1n2/1b1R2pN/rQn2NP1/P1KN3r/6p1/NR2Q1b1/2BB2RQ w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 d5 g4 d4 g5 d3 Qg4 hxg4 cxd3 Rh3 d4 Rh6 d5 Rh8 Ke2 b5 Kd3 c5 a4 e5 f4 b4 h4 g3 h5 g6 f6 e4+ Kc4 b3 d4 e3 a6 b2 f7+ Kd7 d6 e2 f5 e1Q a7 Qe3 d5 Qf2 h6 Qa5 f6 Ne7 h7 Qae1 Nc3 b1B Rh2 Qf5 Nf3 Qee5 Be2 Qee6 Na2 Qh3 Nd4 Bg7 f8Q Qf1 f7 Bb7 Nf5 Na6 Qb8 Nc8 f8N+ Kd8 d7 Bd4 Rf2 Qg2 Bd1 Be4 Rb2 Bc6 Qb5 Nd6+ Kb3 Nf7 Kc4 Qd2 Rab1 Qf4 Ra1 Rb8 a8Q Qc7 Qa7 Ra8 Qab7 Rg8 h8Q Bg2 Qh1 Rh8 Q7b6 Rh5 Q6a5 Qe7 Qd2 Rh4 Qe2 Qe6 Nh7 Ra7 Nf6 Ba8 Ng8 Qe7 Ngh6 Be3+ Kd3 c4+ Kc3 Nc5 Rab1 Bf4 Kd4 c3 Kc4 c2 Ra1 Ra5 Rab1 Qb8 Ra1 Kc7 d8N Qd7 Nc6 Be3+ Ncd4 Kd8 d6 Qbc7 Rab1 Qe7 d7 Bf2 Bf4 c1B Ra1 Bd2 Rab1 Bde1 Bc1 Bg1 Ra1 Bef2 Be3 Qb6 Bc2 Ne4 Nf3 Kc7 d8R Qa7 Rd6 Qd7 Rad1 Kd8 Bc1 Qb8 Rf1 Ba7 Bd1 Bgb6 Rg1 Nc5+ N3d4 Qc7
2bBRBN1/q3N1R1/3P1Rn1/1Q1Bn1p1/1q4N1/B5P1/pb3rK1/b2krb1Q w - - 0 1 illegal: No possible last move
Q3q1Q1/8/q1pQ1R2/RnR2RP1/N1P3Nk/B3rb2/1b1rpKBN/b1n4b w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 e5 h4 Bh6 hxg5 Bf8 d4 f5 dxe5 fxe4 c4 Kf7 f4 Kg6 b4 d5 g4 h5 b6 a5 b7 d4 e6 d3 e7 e3 e8R e2 b5 a4 b6 a3 Bg2 d2+ Kf2 a2 Nf3 h4 Rh2 c6 Ba3 h3 Re6+ Nf6 Nc3 Na6 b8N Nc7 b7 Qe8 Na4 Nb5 Nd7 Bg7 b8Q Rh6 Re5 Nd5 Nf6 Ndc3 Rc5 Rh7 Rh1 h2 Rf1 h1B Nh2 Rh3 Qa7 Rb8 Qa8 Re3 f5+ Kf7 Rb1 a1B g6+ Ke7 Rb3 Na2 g5 Nc1 Nfg4 Bgb2 g7 Kf7 f6 Kg6 g8Q+ Kh5 f7 Kh4 f8R Bf5 Qb7 Rd8 Rf6 Be4 Qa8 Bf3 Rd3 Rd6 Rdd5 Rd7 Qc2 d1Q Qd2 Rd6 Re5 Rd7 Qd6 Qd2 Ref5 Qa5 Rd1 Qa6 Rdd5 Nc3 Ra5 Nb5 Rc5 Rd8 Qdb8 Rd1 Qd6 Rd2
1kBN2Qn/r5n1/1P3P1Q/2pN2K1/QB1b1n2/r2Bp1qq/2b2R1N/1R2n2N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Kg4 a5 f4 c5 d4 Kc7 b4 e4 d6+ Kb7 d5 h3 b6 a4 d7 e3 f6 h5+ Kg5 a3 g4 a2 f5 h4 b5 h2 d6 h3 Qa4 Ra7 Bd3 Ra8 Ne2 Ne7 f7 Qe8 d8Q Ng6 f6 Nc6 d7 Nd4 Ba3 Kb8 b7 Qe7 Ng3 Rh7 Rf1 h1N Nd2 h2 Bb4 Ne2 Rf2 Qe4 Ndf1 Nef4 Rb1 Bd6 f8Q a1N Qh6 Be5 Qg8 Qf3 d8N Rf7 Qhf8 Bd4 Qh6 Kc7 b8N Nc2 Nbc6 Nh8 Ne7 Kb8 b6 Bf5 Nd5 Ne1 Kh4 Re7 g5 Rea7 g6 Be4 g7 Bf5 Nh5 Ng3 Kg5 h1Q Nh2 Bh7 Rb3 Qf1 Rb1 Nf5 Ng3 Qh3 Nh1 Bg6 Qf7 Bh7 g8B Ng7 Qfe8 Bf5 Be6 Bh7 Bc8 Bf5 Bf1 Bh7 Qg8 Bc2 Qd7 Ra3 Qa4 Ra7 Bd3 Qfg3+
rk2BN2/q5Qr/bp1r4/R2R1Q1N/N2brP2/1P1B1n2/2p1Q3/q1n1RK1Q w - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Kf7 Bb2 axb2 Qc2 Ke8 Qc1 Qd7 Qd1 Qd8 f4 Kd7 d4 e5 h4 c5 a4 Kc7 f6 g5 a5 b6 d6+ Kb7 d7 c4 a6+ Kc7 d5 g4 h6 e4 f7 c3 h5 g3 h7 c2 d6+ Kc6 a7 Kb7 h6 g2 Ne2 g1Q Ra5 e3 Nbc3 b1R Na4 Qg7 Ng3 e2 Nh5 Qc7 d8Q Ne7 d7 Nf5 Qg5 Nc6 d8R Ncd4 Rdd5 Nh4 Qf5 Bc5 f8N Nhf3+ Kf2 e1R Bd3 Re3 Qe2 Rd1 Re1 Re4 Kf1 Qcd7 Qg4 Kc7 Qg6 Ba6 Qf5 Rd8 a8B Kb8 Bc6 Qa7 Be8 Qe5 Qe3 Ne2 Qf2 Nc1 Qe2 Rg8 h8Q Qa1 h7 Bd4 Qg7 Rd7 h8Q Rd6 Qgg2 Rg7 Qh1 Rh7 Bdb5 Rd3 Qg7 Rc3 Bd3 Rc8 Qgf6 Kc7 Q6g6 Ra8 Qg7+ Kb8
n2N1rNK/B1r1bQ1p/1Q6/1P2nBRp/3R4/1bQ4P/1Nb3qk/3bNBq1 w - - 0 1 legal: proof: d4 b5 f4 e5 fxe5 c5 dxc5 b4 Qd6 b3 Qh6 gxh6 axb3 h5 b4 Ne7 b5 Ng8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 b4 Kg4 c4 f5 e4 d5 h3+ Kg3 e6 a5 Ke5 a4 e7 d4 e8Q a3 c6 d3 c7 f4 b6 a2 b5 d2 b7 d1B c5 f3 c6 f2 Nf3 Qd7 Qe6 Bc5 Be3 Ne7 Kf6 Bb4 Kg7 Qd6 e5 Bc2 Ba7 Qd5 Nc3 Qd8 Rd1 a1Q Na4 Qa2 Nb2 Ng8 Ne1 Qad5 Rd4 Nd7 b8N Qe4 Rg1 Bb7 c8Q Qb6 c7 Qc5 Qb6 Ngf6 e6 Ne5 e7 Nfd7 e8Q Rf8 Nc6 Kh2 g4 Qg2 Nd8 Bf3 g5 Bfd1 g6 Rb8 Qee6 Rb7 Qg8 Bb3 Kh8 Qc1 g7 Be7 Qb8 Qe3 c8B Rc7 Qa5 Bdc2 Qc3 Nb6 Bf5 Na8 Qb6 Qeg3 Bc4 f1B Bcd3 Rf6 Qf7 Be2 g8N Bed1 Bf1 Qg5 Qg6 Rf8 Qf7 Qd5 Rg3 Qg2 Rgg4 Qe3 Rg5 Qeg1
3Nk3/n2r2P1/3qb1rR/Q1bnQ1p1/1R2p1Nb/BKP2B1q/5N2/1b1QR2R w - - 0 1 illegal: No proof kernel
5r1n/Q2b2Pn/2B1p1rN/R3Pn1B/1qN1nk2/pQQ1R3/2Kb4/1Q1qN1B1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 g4 h5 Qa4 Na6 fxg5 Rh7 g6 Nb8 g5 Rh8 Qg4 hxg4 Kd1 Kd7 e4 Kd6 d4 f5 h4 a5 b4 c5 g7 c4 h5 e6 b6 g3 h6 c3 h7 g2 g6 f4 b7 a4 b5 f3 b6 f2 Bb5 f1N Nd2 Qg5 Ngf3 g1N Ne1 Qh6 Bc6 Nf6 g8B Ra7 Kc2 Ng3 Rh3 Ngh5 Nc4+ Ke7 Be3 Qg5 Bf7 Nf3 Bg1 Nbd7 b8Q Nf4 b7 Nh4 Re3 Bh6 g7 Ra8 Qa7 Nf8 b8Q+ Bd7 Qb3 Nf5 Bh5 N4g6 d6+ Kf7 d5 Qf4 e5 Ne4 Ra2 Rb8 Qb1 Rb4 Ra3 Rg8 h8Q Nh7 Ra2 Ra8 Qc8 a3 Rb2 Ra4 Rb5 Qg4 Qcb7 Rf8 Ra5 Qf4 Q7b3 Qh4 Bf3 Nh8 Be2 Kg6 Bd1 Kg5 Bh5 Be8 d7 Kf4 d8Q Bd7 Qdc7 Qe7 Qc8 Qb4 d6 Bg5 Kd3 c2 Qcc7 Be8 d7 c1Q d8N Bd7 Nf7 Qd1+ Nd2 Qc5 Nh6 Rc4 Qc8 Qb4 Qcc7 Rc2 Qc8 Qc1 Nc4 Rg2 Q1c2 Qa1 Qcb1 Rg4 Kc2 Rg3 Ng8 Bh6 Qcc7 Rg6 Qc8 Bg5 Nh6 Qd4 Qd8 Be8 Qd6 Bd7 Rc3 Qd5 Nd3+ Kg3 Ne1+ Be3 Rd3 Kf4 Rc3 Bc1 Re3 Qd4 Qd5 Qdb6 Qdd3 Qd4 Qd2 Qd3+ Kd1 Qe2+ Kc2 Qg4 Qdd4 Bd2 Qdc3 Qd1+
1N2B3/kr4Pp/q2BP3/2R2nB1/n1q3R1/bK1pQ2r/R4N2/Qbr1rQR1 w - - 0 1 illegal: No possible last move
QQ5N/2B1NPK1/1r2n1P1/2bRr2B/bRqq3N/1np4p/3QQn1k/Rn6 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 b4 c5 d4 e5 g4 a5 f4 c4 f6 h3 b6 h4 f7 h2 b5 h3 g5 a4 g6 a3 b7 a2 f5 Ra4 f6 Nc6 b8R Qb6 Nc3 Ra6 Be2 Bd7 Bf4 Rh5 Nf3 Qb7 b6 Be8 Nh4 Qd7 b7 Nd8 Rg1 h1N Rg5 Qb5 Kf5 Ne6 Qd2 Be7 f8Q Nf2 Bd1 Rb6 Qe2 Qb2 Bg3 Ba4 Bf4 Kd7 d6 e4 Nd5 e3 Be5 Kc6 d7 Bc5 Bc7 Ne7+ Ke5 Qb3 d8Q Nf5 Qg8 c3 Qh8 Ng3 Qh6 Qc4 Ne7+ Kb5 d5 Nge4 d6 Nd2 d7 Nb1 Qg8 Kb4 d8N Kb5 Qf1 e2 Nf7 e1Q+ Qe2 Qd2 Nh8 Qd8 f7 Qd4+ Kf5 Kb4 Qe5 Kb5 Kf6 Kb4 Bf3 Kb3 Rf5 Kc2 Bg4 Rg5 Bh5 Kd3 Qgf8 Qe4 Qh2 Ke3 Rd5 Qed3 Qd8 Qde4 Qhf8 Re5 Qg2 Kf4 Qh6+ Ng5+ Kg7 Qed4 Qf1 Kg3 Qe2 Kh2 Qe8 Nh7 Qhd2 Nf8 Qc6 Rb3 Qa6 Rb6 Qa8 Na3 Rb1 a1N Rb4 Nb3 Rbd8 Rf6 b8Q Nb1 R8d6 Rfe6 Ra6 Rb6 Ra5 Bb5 Ra2 Ba4 Ra1 Ne6+
1K1n3Q/3NBpN1/2QnNQ2/p5q1/4P1Rn/k1nQ1P2/2q2Rr1/B1br2bB w - - 0 1 legal: proof: b4 e5 c4 b5 cxb5 g5 a4 e4 h4 gxh4 a5 d6 b6 e3 b5 Ne7 a6 Bb7 axb7 Na6 dxe3 Nb8 e4 Ng8 e5 Qd7 Qa4 Qe7 Qd1 Qd8 Kd2 Ke7 Ke3 h5 Kd4 c5+ Kd5 a5 e4 c4 g4 h3 e6 c3 f3 h2 g5 c2 g6 h4 g7 h3 Ba3 c1B Nc3 Bb2 Bg2 Qe8 Qd3 Ra6 Ra2 Qd8 Na4 Nc6 b8N Bc1 b7 Nh6 g8Q Nf5 b6 Nh4 Qg6 Rg8 Rf2 Bfh6 Bb4 Bhe3 Nc5 Qc8 Qh6 Nd8 Ne2 Rg3 Rd1 h1N Nd4 h2 Rg1 Rg6 Qf4 Ng3 Nbd7 h1Q b8Q Ngf5 b7 Rb6 Bc3 Rb1 Ba1 Qh3 Bh1 Rg2 Qa8 Qg4 b8B Qg5 Qc6 Qc7 Nf6 Qc8 Ncd7 Qc7 Nh5 Qc8 Kc4 d5+ Kc5 Nd6 Ng7 Qc7 Rb2 Qc8 Kb6 Bf2 Ka7 Qc7+ Qb7 Qc2 Qc6 Bfe3 Bc7 Bf2 Kb8 Bfe3 Nb5 d4 Bb6 Bf2 Nc7 Bfe3 Bc5 Bf2 Qc3 d3 Qf5 d2 Qd3 d1N Qf4 Rh2 Rg4 Rg2 Bb4 Bg1 Ra2 Qcc5 Rf2 Nc3 Qca6 Ne8 Qe5 Ba3 Qed4 Nd5 Qb2 Rc1 Nh5 Rd1 Qh8 Bb2 Ng7 Bc1 Qac4 Kd6 Qcd4 Kc6 e7 Qc2 Nce6 Nc3 Qf6 Nd5 Qe3 Kb5 Qd3+ Ka4 Ne5 Nec7 e8Q+ Nb5 Be7 Nc3 Qc6 Kb3 Nd7 Nd6 Rf4 Kb4 Rg4 Ka3
QQ2K1kN/3RP1q1/Bb1QP3/3p1BNr/R1Qp1B2/R2n3b/r4b2/bn3q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 f5 Kd3 Kf7 Kc4 a5 Kd5 g5 h4 f4 b4 a4 c4 a3 e4 g4 e6+ Kg7 h6+ Kh7 e7 d6 h5 f3 b6 f2 c5 a2 b7 g3 b5 g2 b6 Ra6 c6 Ra4 e5 Bg4 c7 Bf5 c8B Qd7 Qc2 Rc4 Nf3 g1B Nc3 Qa4 Nh4 Qa7 Ng6 Rc6 Ba6 f1Q Rh3 Qf3+ Ne4 Bh2 Bf4 Nd7 b8Q Qg2 b7 Nc5 Ra3 Bh3 Qc4 Nd3 Bf5 Nf6+ Ke6 d5+ Qd6 Kg8 Ng5 Ne4 Kd7 Nc3 e6 Nb1 Ke8 Bg3 b8R Bg7 Rb7 Be5 Rd7 Bf2 Ra4 Rh7 Nh8 Qb6 Qdc5 Bc7 Qd6 Qb3 Ra3 Bb6 Ra4 Rf7 Ra3 Qd1 h7+ Kg7 Ra4 Qdf1 Ra3 Rc5 Ra4 Ra5 h6+ Kf6 Ng6 Qg3 h8Q+ Rg7 Qg8 Rh7 Nh8 Qgg2 Ngf7 Qg7 Ng5 Nb4 Ra3 Nd3 Rc3 Nc5 Qc7 Qg2 Bh2 Ba7 Kd8 Bg4 Ng6 Qf7 Rb3 Rh8 h7 Nd3 Q7c6 Ra4 Bf4 Bh3 Qd6 Qf1 Qf8 Rg8 h8Q+ Rg7 Qhg8 Rh7 Rb4 Rh5 Nh8 Ra5 Qe8 Ra3 Ra4 Bb6+ Rc7 Qg6 Kd7 Qf7 Qa8 Qh7 Qge8 Kg7 Qeb8 Qh6 Kd8 Kg8 Ke8 Qg7 Rd7 Nc3 Rb1 a1B Rb3 Ra2 Rba3 Nb1
RqqNbK1B/4Pr2/2NP2Q1/3qbRN1/QR2B3/3r4/qN1p2pn/2kB3n w - - 0 1 illegal: No proof kernel
1K4BQ/3prr2/4nNR1/5kBN/3n1b1P/q3RQ2/1BPqqqBp/1b1Q1N2 w - - 0 1 illegal: No proof kernel
R7/Q2p3Q/n1nBPnn1/1p1QQ1K1/1r1qb1B1/N2R4/4q1Pb/R3NkBr w - - 0 1 illegal: No proof kernel
4q1n1/3pq3/NPk2N2/Q1B1RBnn/2K2RR1/1rb1Qp2/4N1RP/B4bnr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 Kd3 f5 b4 g5 c4 a4 e4 g4 e6 a3 c5 f4 e7 f3 c6 a2 h6 g3 e5 g2 c7 Ra7 b6 Ra5 b5 Nf6 h7 Rg8 h8B Ra3+ Kc4 d3 b7 d2 b6 Ng4 Nc3 Na6 b8N Bg7 Qa4 d1N Ne4 Nc3 Bd3 Rb3 Be3 Nc5 Na6 Ne6 Bc5 Nh6 Ne2 g1N Qa5 Nf4 Nf6+ Kf7 e8R Ne4 Rb1 a1Q Rb2 Ng5 Bf5 Qa3 Re6 Bb7 c8R Qe8 Re7+ Kf8 e6 Nh5 Rc6 Bc8 Rd6 Bb7 Rd4 Bc6 Rf4 Bb7 Ng4 Bc3 Nf6 Rg6 Rd2 Ng8 Rdd4 Bc6 Rg4 Ba4 Rdf4 Bb5+ Kd5 N1h3 Rhg1 Bd3 R1g2 Ng1 Nd4 Bf1 Ne2 Qc1 Kc4 Qd1 Rh7+ Qd6 Bg7+ Ke7 Rh6 Kd8 e7+ Kc8 Bh8 Kb7 Rh7 Qd8 e8Q Kc6 Qe3 Qe8 Re7 Rg7 Re5 Qde7 Nh7 Rg6 Bg7 Rd6 Nf6 Rd1 Bd4 Bb4 Ba1 Bc3 Bf8 Qh7 Bd6 Qhe7 Bc5 N1h3 Rg1 Bg2 Rf1 Re1 Rf2 Rh1 Ng1 Bf1+ Ne2 Ng1 Rfg2 Q8d8 Nh7 Qc8 Nf6 Qce8
bB1kq3/3pRrnq/QPrN1R1p/2R2bbN/2Nb1R2/KPQ5/n1B5/B7 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 f4 e5 c4 e4 Kc2 a4 g4 e3 g6 a3 Kb3 a2 b6 d3 g5 d2 f6 e2 f5 e1Q c5 h6 f7+ Ke7 c6 Qe2 f6+ Kd6 g7 Qg2 g6 Ne7 g8R Qh2 g7 Ba6 c7 Qf2 c8N+ Ke6 Bd3 Qh4 Nh3 Qg4 Re1+ Qe4 Nf4+ Ke5 Nh5 Ke6 Bc2 Nf5 Nd6 Qc7 Ka3 Rh7 b3 Qd8 Qe2 d1B Bb2 Nc6 Nd2 Bb7+ Qa6 Be7 f8B Rc8 f7 Nb4 N2c4 Qe8 Rc1 Bg4 Ba1 Ba8 Rf1 Qd3 Rf4 Rc6 Rh8 Bg5 g8Q Bh3 Qg7 Bg4 Qd4 Ng7 Qc3 Bf5 Be7 Qe4 f8R Qd3 Bf6 Qe4 Bd4 Ke7 Be5 Kd8 Rf6 Qd3 Rhf8 Qe4 R8f7 Qd3 Bb2 a1B Re7 Na2 Ne4 Rh8 Bb8 Rf8 Ned6 Qe4 Rd1 Rf7 Rd5 Be6 Rc5 Qh7 Qe3 Bf5 Bd4 Bc3 Qd2 Ba5 Ba1 Bc3 Qd3 Be5 Qc3 Bd4
1q1nB2N/Q1Pb2B1/r2Bq3/1RKBn3/Q1QR1R1p/6k1/Nbr1Pr1p/7r w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 Be7 dxc5 Bf8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 g4+ Ke6 b4 h5 c4 a5 b6 d5 b5 f5 c6 f4 g5 Kf5 g6 Kg4 c5 h3 c7 a4 g7 h4 e6 f3 c6 f2 b7 h2 e7 a3 e8B a2 b6 Ra6 Bb2 Kg3 Qa4 Be7 Nf3 Qd7 Ne5 Qh3 Ng6 Ra5 Bg2 f1R Nc3 Nh6 g8Q Rf2 Raf1 a1Q Qh7 Nd7 b8B Qe6 b7 Qb1 Na2 Ra6 Qf7 Rf8 Nh8 Ne5 Rd1 Bg5 Rhf1 Bc1 Kc5 d4 Bd5 Bd7 c8Q d3 Bd6 d2 b8R Rg8 Qe7 Nf7 Rb5 Nd8 Qf7 Rg4 c7 Rg6 Qb8 Rgf6 Ba1 Bb2 Qa7 R6f3 Rc1 d1R Rc4 Rfd3 Rd4 R3d2 Qf4+ Kh3 Qe4 Kg3 Qec2 Rc1 Qcc4 Rcd1 Rf4 Rc1 Rd1 Rdc2 Rdd4 Rh1 Rde4 Bc1 Bc3 Bb2 Bd4 Ng6 Bg7 Ne5 Rd4 Ba1 Ra5 Qb8 Rb5 Bb2
2rRN3/2P1Q1N1/1N2Q2Q/rq1pP2b/NbRB3q/4nn1B/2pqq3/1K1B2k1 w - - 0 1 illegal: No possible last move, all moves rejected
3Kb2N/kbpBN1Q1/2br1qQ1/2qB4/N2bP1nQ/8/RPR1Np2/1r2B1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 d4 h4 g4 h3 e4 f3 g6 f2 d6 a4 g7 f4 b6 Kc6 b7 Kb6 g5 a3 d5 a2 d7 f3 Ke6 h2 g6 Ra4 d6 Ne7 g8Q Rd4 g7 Ng6 Bb5 f1B Bd2 f2 Ne2 Nh4 Be1 Nf3 Nbc3 Rd5 Na4+ Ka7 Rg1 Nc6 b8N h1B Qd4+ Rc5 Rg3 Ng1 Rc3 Ne5 Rc2 Bb7 Qh7 Ng4 g8B Bg7 Qg6 Qg5 d8N Rh6 Kd7 Bf3 Nf7 Qf6 Nh8 Rh1 Qc3 Rc6 Bd5 Ra6 Ke8 Bh3 d7 Rd6 d8Q Bf1 Rac1 a1Q Bd7 Qa3 Ra1 Qc5 Ra2 Bc6 Qe7 Bh3 Kd8 Bf1 Ng3 Ba6 Ne2 Bab7 Qd4 Ne3 Qe5 Bh5 Qeg5 Ng4 Qh4 Qf3 Qef7 Bd4 Qfg7 Qf7 Na6 Qf5 Nb4 Qf4 Bb3 Qf7 Nd5 Qf4 Ne7 Qf6 Q6h6 Be8 Bd5 Nf3 Q6g5 Rf1 Q5g6 Ng1 Bc3 Rc1 Be1 Rb1
2B2q1b/1pQ5/qB3n1n/2r3Pn/Rrb1QKN1/3PN1Q1/1RNBk1p1/3nB3 w - - 0 1 illegal: No proof kernel
N1B1q3/1p1b4/2B4R/2qPr2b/2rb2BR/BQ1PQ3/b1K1Npn1/knQ1R3 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 a4 Kd7 e4 f5 g4 c5 d3 h5 Kd2 h4 a5 b3 g6 c4 e6+ Kd6 g5 Kc5 e7 Kd4 e8Q c3+ Ke1 c2 Kd2 h3 a6 b2 a7 h2 g7 f4 g6 f3 e5 f2 e6 Rh5 e7 Nd7 Nc3 b1B Bh3 Nh6 g8R Ne5 g7 Nf5 Bb2 Bd7 Bg4 Ba2 Qc1 Rc8 a8Q Rc4 Ba3 Nh4 Na4 Ng2 Rh8 Rg5 g8B Bg7 Rh6 Nf3+ Ke2 Bh8 B8e6 Nd2 Nb6 Kc3 Qa4 Nb1 Na8 Bf6 Qb5 Qb8 Qb6 Re5+ Qbe3 Kb3 Qc8 Kc3 e8B Bg7 Qd1 c1Q Qc6 Qc8 Qb6 Qc5 Qf1 Qb2+ Kd1 Qbb5 Ne2+ Kb3 Qe1 Bh8 Q1d2 Bg7 Re1 h1B Bef5 Re7 Rh4 Bc3 Qc1 Re5 Be6 Nf4 Rh6 Bf3 Reh1 Ng2 R1h4 Bc6 Bc8 Bd7 Bf5 Bh5 Bg4 Bf5 Bc6 Bd7 Qa6 Qa4 Qb6+ Qcb5 Be6 Nd2 Bg4 Bf5 B6d7 Qab4 Be8 Qf8 Bed7 Qe8 Bc6 Bd7 Qb2+ Ka4 Rc1 Nb1 Qbd2 Kb3 Qe1 Rf5 Be7 Kb2 Ba3+ Ka1 Kc2 Qa5 Qb3 Re5 Q1d2 Qb6 Re1 Qc5 Qc1 Bd4+
nNBQ1b2/P1pRn3/1N2Q1RB/4q1n1/BBP4r/QN4r1/npq3k1/1K1b4 w - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 e5 dxe5 f5 exf5 Be7 gxh5 Bf8 Kd2 Kf7 c4 g5 Kc2 d5 f4 b5 a4 g4 h4 d4 f6 Ke6 a5 Kf5 e6 Ke4 h6 g3 a6 g2 f5 Bg7 e7 Be6 e8B Bf8 h7 Qe7 h5 Nh6 f7 Qd6 f6 Ng8 a7 Ne7 h6 Nec6 Ra6 Bc8 Qg4+ Qf4 Qe6+ Qe5 Nf3 g1N Bh3 Ne7 Nfd2+ Kf4 Nb3+ Kf3 Rd6 Nd7 Nc3 d3+ Kb1 d2 Nd5 Nb6 Rd7 d1N Bg5 Rg8 h8B Rb8 h7 Na8 Bf4 Rg3 Nb6 Kf2 Bh6 Nf3 Bf5 Ng5 Rg1 Bb7 B8g7 Bf3 h8Q Rc8 Be4 Rd8 Bb7 Be2 Bc8 Nc3+ Kc1 Na2+ Kb1 Bh5 Qg8 Bd1 Bh8 Bg7 f8Q Kf3 f7 Kf2 Rd3 Rd4 Bc6 Rdg4 Rd7 Rh4 Qd8 Bf8 Qd6 Qe3 Bc3 Qe5 Qgg6 Rgh3 Qge6 Rg3 Na1 b3 Qa3 b4 Ba4 b2 Nb3 Bg7 f8N Kf3 Rd3+ Kf2 Nfd7 Bf8 Rf1+ Kg2 Nb8 Bh5 Rf6 Bf3 Kc2 Bh5 Rd7 b1Q+ Kd2 Qh7 Rg6 Bg4 Kc2 Bh5 Nc1 b3+ Kb1 b2 Nb3 Bd1 Bd2 Qf7 Bc3 Qf2 Bb4 Qc2+
6bR/p2RpN2/Nr1rPr1B/Qn1R1P1q/BK1r1R2/1Q1bq1N1/3k4/1n5B w - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 cxd5 Bh6 axb5 fxg4 Rh3 g3 Rh2 g4 Rh1 Bg5 hxg5 Be6 Na3 Bf5 Nb1 Bc8 e4 Kf7 d4 Kg6 Kd2 h5 Kc3 c5 f4 h4 b4 c4 f5+ Kh5 b6 g2 b5 h3 e5 h2 b7 Be6 g6 Bc8 g7 Rh6 b6 Na6 b8Q Rf6 b7 Nc7 d6 Be6 d7 Qe8 d8R Nb5+ Kb4 c3 d5 c2 d6 Bc4 Nd2 Kg5 d7 Kf4 Ne2+ Ke3 Ra4 g1Q Ng3 Qh5 Qc7 Rb8 Qa5 Rd6 Bd3 Nf6 g8B Ne4 Nf3+ Nd2 Ng5 Qe1 Bd5 Qf2 Ne2 g3 Nf7 g2 Ng3 g1R Rh8 Re1 d8R Re2 Rf1 h1B Rd7 Rf6 Bc6 Bhd5 Be4 Rd8 b8N Be6 Nd6 Bg8 Na6 Rb8 e6 Rb6 Bh1 Qff3 Bb2 c1R Nf7 Nb1 Qb3+ Rc3 Rg1 Rd3 Rd1 Rd2 Bc3 Rd4 Bb2+ R2d3 Bc1+ Kf2 Bh6 Qe3 Rd2+ Ke1 Rd5 Rf4 Rd7 Rd6 Rd5 Re4 Ra2 Rd4 Rf2 Rb8 Rf4 Kd2 Kc5+ N5c3 Ba4 Rbb6 Nb4 Nb5 Na6+ Kc1 Kb4 Kd2 Bf3 Qe1 Be4 Qe3 Bh1 Bd3+
4R3/pP1Q1b2/2np1Kn1/1nQ2r2/B1NR3B/bnP1qr1R/1N1q4/QR2Bk2 w - - 0 1 illegal: No possible last move, all moves rejected
2k1qR2/rq1Rb3/2P1pQ1B/2nNr1B1/3pN3/1RQ3n1/3PKN1n/1q1B1B1r w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 bxc5 gxh4 a4 b4 Ba3 Ba6 Bc1 Bb5 axb5 Qc8 Rh2 Qc7 Rh1 Qd8 g4 a5 f4 h5 c4 d5 g5 Kd7 g6 a4 g7 b3 b6 a3 c6+ Kc8 c5 h3 b7+ Kc7 f6 h2 f5 b2 f7 a2 f6 d4 Nh3 h4 Qc2 Qd7 Nc3 b1R Ne4 Ra4 Ke2 Rbb4 Qc3 Ra3 Rb1 a1Q Rb3 Ra6 Ba3 Ra5 Nhf2 Na6 b8R Nh6 g8N h3 Rd8 Qe8 Rd7+ Kc8 c7 Qb1 Rg1 Bg7 f8B h1Q f7 h2 Ngf6 Ng4 Nd5 Bf6 Bh6 Rb7 f8Q Ra7 Bb4 Bh4 Qf6 Qg2 Bg5 h1N Bh6 Nh2 Bg5 Kb7 c8B+ Kb8 Bb7 e6 c6 Nc5 Ba6 Rh6 Bd3 Kc8 Bc2 Qg3 Bd1 Qb8 Rg4 Qb7 Rf4 Rh5 Bh6 Ra1 Ba5 Re5 Bd8 Bg5 Qg6 Bh4 Rf8 Be7 Qf6 Ng3+ Ke1 Qa2 Qg5 Kb8 Bh3 Nh5 Ke2 Bd6 Bc2 Rh1 Bd1 Qb1 Bf1 Kc8 Bf6 Be7 Qf4 Nd3 Bfg5 Nc5 Qf6 Ng3+
b7/2RNqp2/2p2r2/qnR2KPk/2QQ1Q1B/2P2NB1/q1n1Qb1N/3B2bn w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 g5 g4 e5 dxe5 Bb7 f4 gxf4 h4 Bc8 h5 Ra6 g5 Rg6 hxg6 Bd6 Nh3 Be7 Ng1 Bf8 Kf2 h5 Kf3 d5 b4 a4 e4 c6 b6 h4 e6 h3 Kg4 a3 g7 f3 b5 a2 b7 h2 e5 d4 b6 f2 Kf5 d3 Nd2 Qd4 Ngf3 Qa4 Be2 Bc5 Nf1 Nf6 g8N Na6 b8B d2 b7 Ng4 Nf6+ Kf8 Nd7+ Kg7 e7 Rh6 e8Q Qa5 e6 Nc7 e7 Nb5 Bg3 Bb6 b8Q Bb7 Qd6 Ba8 Bh4 Bd4 Rb1 a1B Qf4 Ba7 Qc4 B1d4 Qb8 Rd6 Rg1 h1N N1h2 f1Q e8Q Bf2 c3 Qh3 Rf1 Qg2 Ra1 Re6 Qbf4 Bad4 Qda4 d1Q Re1 Qb3 Bd1 Qa3 Re5 Qe7 Rc5 Bg1 Be3 Qa2 Bef2 Kh7 Bfg3 Bdf2 Qcd4 Rd6 Qac4 Rg6 Qeb8 Rh6 Qbe5 Ne3+ Ke4 Nc2 Kf5 Rg6 Qee2 Rd6 Kg4 Kg6 Rb1 Na7 Rb7 Rf6 Rc7 Nb5 Qfe3 Re6 Kf4 Kh5 Kf5 Rd6 Qef4 Rf6+
1N2k1r1/6B1/1n2K3/bp1bbp2/3rq1Nb/1RQB1RBb/PQB1rP2/1N3R2 w - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Bg4 cxd5 Bf3 b4 axb4 e4 Na6 d6 Bg4 d5 Bc8 e5 Bg7 Bc4 Kf8 Bd3 Nb8 Bf1 Nd7 e6 Bh6 exd7 Kg7 Ba6 Kg6 Bf1 Bf8 Kd2 e5 Kd3 b5 Ke4 c5 g4 h5 Qd4 h4 Bd3 b3 Qb2 f6 Nf3 Kf7 Kf5 c4 Bf4 h3 Bg3 c3 Nh2 c2 Rf1 Bg7 g6+ Kf8 g5 c1B Bc2 e4 Ng4 h2 Ke6 Rh4 Bd3 Ne7 Bc2 Bh8 g7+ Kg8 Bd3 h1B Qc3 b2 Bc2 Kh7 g8B+ Kg7 g6 Kf8 Bh7 e3 Bd3 Qe8 Bc2 Ba6 d8B e2 d7 e1B d6 Bc8 Bb6 Bg7 Bd4 Bg5 Bd3 Bg2 Bc2 Bcb7 d8R Bh3 d7 Rb8 Rc8 Bbg2 d8N Bd5+ Kd6 Bed2 Nc6 Bh8 g7+ Kf7 Qd3 Ba5 Qc3 Ra8 Bhe4 f5 Nb8 Bf6 Rc6 Bg5 Ke5 Nc8+ Re6 Nb6 Bed3 Bd8 Kd6 Bg5 Re3 Qe4 Rf3 Ke8 Bde5 Rh5 Bd4 Bh4 Bf6 Rg5 Bfe5 Ra7 Bf6 Rf7 g8Q+ Rf8 Qh7 Rgg8 Bg7 Rf7 Qh6 Re7 Qc1 Re5 Na3 b1R Q1b2 Re1 Rd1 Re7 Nb1 Rc7 Rd2 Rc4 Re2 Rd4 Ree3 Re2 Ne5 Bb7+ Ke6 Qf4 Ng4 Ba8 Bh6 Be5 Bg7 Qe4 Qc8+ Rd8 Bc4 Be7 Rb3 Bh4 B4d3 Bb7 Qc4 Rd4 Qcc3 Bd5#
7r/r1pR1b2/1rRB3n/p1NQ2P1/1kBq3N/br4Q1/P4rQ1/bKQR1N2 w - - 0 1 legal: proof: h4 e5 c4 b5 g4 bxc4 d4 g5 dxe5 Bc5 f4 Bb6 h5 Nc6 h6 Bc5 fxg5 Ba3 g6 Nce7 g5 Nf5 Kd2 Ng7 hxg7 Bd6 Ke1 Bf8 Kd2 Ke7 Kc2 h5 b4 a5 e4 f5 b5 d5 e6 Kd6 e5+ Kc5 b6 h4 b7 f4 b8N d4 e7 c3 e8Q h3 e6 f3 e7 f2 Bf4 h2 Nd7+ Kb4 Bd6+ Ka4 Qc1 Rh6 Nd2 d3+ Kb1 Ra7 Nc5+ Kb4 Ngf3 Be6 Qc6 Bf7 e8Q Qd7 Be2 f1R Qe3 Rf2 Nf1 d2 Nh4 d1R Bc4 Rd3 Qg3 Be7 Qcg2 Bf6 Rg1 Qg4 Rh1 Qd4 Rg1 Rh8 Rh1 Nh6 g8R Be5 g7 Re3 Rg1 h1R Rd8 Ref3 g8Q Rh3 Qg7 Rf6 Rd7 Re6 Qg8 Rg6 Be7 Rb6 Bd6 Bf6 Q8a8 Bg7 Qad5 Bf6 Qce3 c2+ Kc1 Qd3 Qge5 Rg3 Nh2 Qe2 Rd1 Rba6 Ne6+ Ka4 Nf1 Qf3 Be2 Qe4 Bd3 Rgf3 Qeg3 Rb6 Rb1 Qc4 Rb3 Qc5 Rc3 Kb4 Kb2 c1B+ Kb1 Bb2 Qc1 Ba1 Rc2 Bfb2 Ba6 Rb3 Rc3 Ka4 Be2 Qe3 Rc6 Qd4 Nc5+ Kb4 Bc4 Ba3+
R2q1knK/2P1n1pn/1Bn1n2N/BNRQ1B2/NbQ1R3/pN4P1/6b1/3b1r2 w - - 0 1 illegal: No proof kernel
B7/Rb1K4/Qq2N1p1/2Qq1kP1/1QBqn1q1/RB2r2P/2Nbpn1R/q5B1 w - - 0 1 illegal: No proof kernel
4r1bb/2Q3Rn/B1Q3pN/1RqNP1P1/b1q2N1r/2K2b2/3pR3/B1B1B1bk w - - 0 1 illegal: No possible last move, all moves rejected
2N1k1BN/3qNp2/n1N1RPnQ/1nQR3r/3R2P1/bq3K1p/3B2B1/n2r3n w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Bb7 Ra1 c4 d3 Bd5 exd5 cxd3 c4 e5 f4 a5 Kf2 h5 g4 a4 b4 h4 c5 h3 d6 a3 c6 d2 f5 a2 c7 d3 c8N e4 b6 e3+ Kf3 e2 f6 e1Q b5 Bh6 b7 Nc6 b8Q Ra4 b6 Ra5 g6 Kf8 b7 Qee8 d7 Ra8 Qa7 Bg7 b8N Rh7 Nc3 Nge7 Bg2 Qb6 d8R Nb4 Rd4 Na6 Nd5 Qd7 Nc6 Rh5 Ne2 Ke8 Re1 Qb3 Nef4 Bf8 g7 Rb8 Qe2 d1N g8B d2+ Qe3 Nf2 Qc5 d1N Bd2 Nh1 Ng6 Nc3 Nh8 Nb5 Rad1 a1N Re2 Qa4 Qh6 Qb3+ Ke4 Ng6 Nde7 Qbe6+ Kf3 Qb3+ Bc3 Rb7 Re6 Rb6 N6a7 Rd6 Nac6 Rdd5 R1d3 Rde5 Ba5 Re1 Bd2 Rd1 Rd5 Qb4 Qc3 Qa7 Nf5+ Be7 R3d4 Qb3 Ncd6+ Kd7 Nc8+ Bd6 Nfe7 Ke8 Ree4 Qd7 Re6 Qb2 Qc2 Ba3 Qc5 Qb3+
qRKB1bq1/1B2pB2/B1Q1P1Rp/5Q1q/P3R2N/1q3N2/Qrb4n/4r1qk w - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 h4 Bh6 h5 Ra6 g6 Ra8 g5 Bf8 g7 Nc6 Rh3 Ne5 Rh1 Ng6 hxg6 Ke8 Kf2 Kd7 Ke3 Kd6 Ke4 b5 d4 c5 a4 h6 Qd3 f6 Rh4 c4 Nd2 c3 Ngf3 Ba6 Kf5 c2 e4 b3 e5+ Kd7 d6 Kc6 Ke6 b2 d7 b1Q Bg2 f5 Re4 b4 Nh4 f4 Ndf3 b3 Be3 Nf6 g8Q c1Q g7 b2 g6 Ng4 Qf1 Qb8 d8R Nh2 Qh1 Qa7 Rb8 Qg1 Bf2 Qbd1 d5+ Kc7 d6+ Kc6 d7 b1Q d8Q Bd3 Qa5 Bc2 Qf7 Rg8 Bb6 Qb4 Bf1 Qb3+ Bc4 Qb7 Bd8 Ra7 Qd2 Qa8 Qf5 Rb7 Qhg2 Rb4 Rc1 Kc5 Kd7 Qe2 Bd3 Kd5 Kc8 Qed1 Qh1 Qg4 Ra1 Qdg1 Qf2 Qh5 Ba6 Qg2 Rg1 Rb5 Nd4 f3 Qd2 f2 Ndf3+ Bd3 Qb2 f1Q Qa2 Qgg4 Rg2 Qg1 Rg3 Rb6 Qhg2 Re6 Qgc2 Rh8 g8B Qgg5 Qc7 Bc2 g7 Qgg4 Bf7 Qgg6 Re2 Qh7 Rg6 Qg8 Ng5 Kd4 Re3 Kd5 Bb7+ Kd4 Re4+ Kd3 Qc6 Kd2 Rd4+ Ke1 Ngf3+ Kf2 Re4 Qa1 Ng5+ Kg1 Ngf3+ Kh1 Ba6 Qg1 Bb7 Rd6 Bc4 Rd5 e6 Rd1 Bf1 Re1 Bfa6 Qf7 g8B Qe8 Bf7 Rg8 Rf6 Rg2 Bg8 Qeg6 Bf7 Qg8 Rg6 Bb1 Qcb5 Rb2 Qc6 Bc2
5BR1/2b1NpNB/1krr1qP1/4KP1R/1q2B2R/np1Rr3/2b1Q1Q1/1r1r3Q w - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Bg4 cxd5 Bf3 b4 axb4 e4 Na6 d6 Bg4 d5 Bc8 e5 Bg7 Bc4 Kf8 Bd3 Nb8 Bf1 Nd7 e6 Bh6 exd7 Kg7 Ba6 Kg6 Bf1 Bf8 Ke2 Kf5 Kd3 Ke5 a4 h5 g4 b5 g6 c5 g5 h4 g7 b3 g6 b2 a5 h3 a6 b4 a7 b3 Ne2 h2 Ng3 Nh6 g8B Ng4 Nf5 Ne3 Qe2 Rh3 Nc3 b1R Bh7 e6 f3 Qg5 d8Q Bg7 Qg2 Nc4 d7 Na3 d6 Bh8 Nd5 c4+ Kc3 Rb8 a8R Rb6 Bd3 Bb7 Nde7 Be4 Qe8 Bf6 Bf1 Bc2 d8Q Bg7 d7 Rd6 Bd3 Bh8 Rf1 h1R Ng7 Rg1 Rf2 Rd1 Be4 Rg3 Qc8 Rh3 d8R Rg3 Kb4 Kd4 f4 c3 f5 e5 Qb7 Rgd3 Rf4 Re3 Bf3+ e4 Rh4 Re2 Rh5 e3 Be4 Ree1 Qeb5 e2 Rd7 Qg3 Bh6 Qg5 Ne8 Be5 Ng7 Bh2 Rg8 Be5 Ne8 Bh2 Bf8 Bg3 Ng7 Bh2 Q5a6 Be5 Ka4 Kc5 Qd3 Bh2 Qbd5+ Kb6 Kb4 Rg1 Qa8 e1Q Qde2 Be5 Qh1 Rg3 Ra2 Re3 Qhg2 Rc6 Rd3 Bc7 Rb2 Rd6 Qd5 Nb5 Kc4 Na3+ Kd4 Qf4 Qgf1 Qg5 Qg4 Qd2 Bf3 Qe1 Rd2 Bd3 Qh1 Be4 Ke5 c2 Rdh2 c1R R2h4 Red3 Rd2 Re3 Qd3 Rcc6 Qe2 Bd3+ Be4 Bc2 Rd3 Qb4 Qgg2 Qf6+
qbbR1N2/1Q2Q3/1B1bN2P/2p1q3/B1bR4/2P1RQ2/pr1b3B/k1rB2nK w - - 0 1 legal: proof: d4 h5 a4 e5 dxe5 b5 axb5 Bc5 f4 Ke7 g4 hxg4 e4 Be3 e6 Kf6 f5 Nc6 e5+ Kg5 f6 Kg6 Ke2 Bc5 Kd2 Bf8 Ke1 Nce7 fxe7 Rh4 Qd5 Rh7 Qd1 Rh8 Kf2 Kf5 Kg2 Ke4 e8B d5 b4 f5 h4 c5 h5 g5 e7 a5 b6 f4 h6 g3 e6 g4 b7 a4 b8B a3 b5 d4 b6 d3 b7 Kd4 Bd2 Nf6 Bb5 Nh5 e8Q Bd6 Rh3 f3+ Kh1 f2 e7 Nf4 Qg8 Ne2 Ba5 d2 e8R a2 Qf8 Rg8 Bbc7 Rb8 Nc3 Qf6 Na4 Qe5 Qe1 d1Q Bab6 Qb1 Bg2 f1B Bf3 Qb3 Qf7 Qa3 Rd8 Re8 Rh4 Rf8 Nh3 Ng1 Qf5 Bc4 Bd1 Rf7 Qh5 Rf1 c3+ Kd3 Qe4+ Kd2 Nf4 g2+ Kh2 Re1 Qe8 Rf1 Qe7 Re1 Rb1 Rf1 Rb4 Kc1 Rh3 Re1 Re3 Rf1 Nb2 Qa8 Qf3 Kb1 Bba4 Ka1 Nd3 Re1 Bdc2 Rc1 Bd1 Qg7 Ne5 Qf6 Neg6 Qg7 Kg3 Qe5 Kh4 g3 Ne6 Ne2 Kh3 g1B Kg2 Bh2 Ngf8 Ng1 Rd3 Bb5 Rbd4 Bc4 Kf1 g2+ Kf2 Ne2 Re3 g1B+ Kg2 Bf2 Kh1 Be1 Ng5 Ng1 Nge6 Qa5 Rde4 Bd2 Rd4 Ra8 b8Q Bg3 Qa7 Rb8 Qab7 Qa8 Qbe4 Rb7 Bb8 Ra7 Q7b7 Ra5 Qeh7 Rb5 Qhe7 Rb2 Bdc2 Qg5 B6c7 Bdf4 Bb6 Bh2 Bd1 Qd5 Be5 Bhg3 Bf6 Bb8 Bh4 Bge5 Bg3 Bed6 Bh2 Qe5
b1RB1R2/3B2n1/1B2p1k1/1N2Br1p/1NN4P/2Q3r1/1qbQP1R1/1qbb1K1r w - - 0 2 illegal: No possible last move
1B4B1/P1N1r2b/K7/1nQqnRBp/4n1kP/2q3p1/2N1NnB1/1RQ1rq1Q w - - 0 1 legal: proof: f4 a5 c4 e5 b4 axb4 g3 d5 cxd5 f5 Kf2 Bc5+ Ke1 Be3 fxe5 f4 Nh3 f3 Ng1 Bf4 gxf4 Qg5 Kf2 Qf6 Ke1 Qd8 a4 Kf7 h4 Kg6 d4 Kh5 Kd2 c5 Kd3 b5 e4 g5 e6 b3 e5 h6 a5 b2 a6 b4 Kc4 b3 Kb5 c4 f5 g4 a7 f2 f6 c3 e7 c2 e8N Rh7 f7 Qd6 f8Q Rf7 e6 Qc7 e7 Qf4 d6 Qd2 d5 Bf5 d7 Nf6 d8Q Nbd7 d6 Be4 Qc8 Ne5 d7 Bh7 d8B Qd5+ Ka6 Ne4 Bg5 c1N Bg2 f1Q+ Ne2 g3 Bc7 Ncd3 Na3 b1N Bb8 b2 Qcc1 Ndf2 Nc7 Kg4 e8B h5 Nc2 Na3 Rb1 Nb5 Qc5 Re7 Bf7 Qe1 Rf1 Qc3 Ra1 b1Q Bg8 Nh3 Rf5 Nhf2 Ncd4 Qbd3 Qh1 Qd1 Rb1 Qf1 Nce6 Ned6 Nc2 Nde4 Bc7 Rc8 Bb8 Rce8 Nc7 Rd8 Ncd4 Qdb3 Nc2 Rd1 Ne1 Qd5 Nc2 Re1
nq1B1K2/4Np2/2B1nPQP/1nR1B1Nn/6r1/kq3bQr/1p2rQ2/3B1NR1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 d4 h5 g4 e6 gxh5 Qd7 e4 Bd6 e5 Qe7 exd6 Qd8 Kd2 Kd7 Ke3 b5 Ke4 c5 Ke5 g5 h4 g4 f4 c4 a4 b3 f5 c3 f6 b2 h6 b4 a5 g3 a6 c2 h5 g2 h7 b3 a7 Na6 h6 Rb8 a8B Bb7 Rh5 Nc7 Nh3 g1N Qd3 Ne2 Nd2 b1N Ng5 b2 Qg3 Nf4 Be2 Ne7 Bd1 Nc8 Nf1 Rg8 h8Q Nc3 Qg7 N3b5 Qg6 Nb6 Bd2 c1Q Bc3 Qc2 Rb1 Qf8 Rc1 Kd8 d7 Qb3 Rh1 Nh5 Rg1 Bc6 Bb7 Nba8 Qf2 Na6 Qg3 Kc7 d8B+ Kd7 d6 Bf3 d5 N6c7 Bd4 Rg7 Rc5 Qh8 Ba6 Rb6 Bb7 Ra6 Qf2 Ra4 Bc3 Rh4 Bd4 Rh3 Bc6+ Kc8 d7+ Kb8 d6 Ka7 Be7 Kb6 d8N Ka5 d7 Ka4 Qg3 Ka3 Qf2 Nc3 Kd6 e5 Qg3 e4 Be5 e3 Bd5 e2 Nc6 e1R d8Q Qe8 Qc2 Qf8 Ne4 Bh1 Qcf2 Qh8 Qg8 Rg5 Qg6 Rg4 Ng5 Qc8 Bd8 Re2 Ke7 N3b5 Kf8 Bf3 Ne7 Qb8 Bc6 Ne6+
3QQ3/1B1rP1Rq/5Nrn/Brk1pp1n/Q1N1Pn2/2B4Q/1n4b1/1q2RK1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e6 cxd5 Bb4 f5 Kd7 f6 Be7 fxe7 Qe8 Qc2 Qf8 Qd1 Qd8 d4 Kd6 e4 a5 b4 h5 g4 c5 b6 e5 b7 h3 g5 h2 b5 c4 g6 h4 b6 a4 g7 c3 Kf2 a3 Bf4 h3 Bc4 a2 Ne2 c2 Bd2 c1N Na3 Nd7 Ba6 Nf8 Qa4 Rb8 Ng3 Nh6 g8R Nd3+ Kf1 Nb2 Rg7 Bg4 Nh5 f5 Re1 a1Q Nf6 Ne6 Ba5 Rg8 Bc3 Rc8 b8B+ Rc7 b7 Qb1 Ba7 Bh5 b8Q Bf3 Bb6 Nf4 Bb7 Qc8 Qba8 Rd7 Bba5 Qe8 Qc8 Qg6 Qe8 Qh7 Bab4+ Kc7 d6+ Kb6 Qh5 Rb8 d5 Rg8 Ba5+ Kc5 Nc4 Rb8 Rhg1 h1N Qh4 h2 Qh3 Rdd8 d7 Ng3+ Kf2 h1R d6 Rg8 d8Q Ngh5 d7 Rh2+ Kf1 Rd2 Rh1 Rd3 Rg4 Rg6 Qe8 Rd2 d8Q Rd7 Ba8 Rb6 Bb7 Rb5 Rh4 Rg3 Rg4 Rg2 Rg8 Rg6 Rg7 Bg2+
1Kqrrb1B/2Q3Nn/N6k/6bp/rB2QQbP/qR1Rp3/4PN2/3b2BN w - - 1 2 illegal: No possible last move, all moves rejected
2B2r2/q2Np2B/b6n/1R1n1N1n/3p1R1n/3P1qQ1/1N1Q1Prq/N2RBK1k w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 g4 Kf7 d3 Kf6 b7 Ke5 b6 a5 f6 h5 f7 c5 f8Q d5 b5 h3 g5 d4 g6 a4 g7 c4 Ra2 h2 Rb2 a3 Be3 c3 Qd2 a2 Na3 c2 Bh3 c1N Kf1 a1Q Nc2 h4 Ne2 Na6 b8N Qd6 b7 Nc7 b6 Nh6 g8B Nd5 Qf3 Qa7 Na6 Nb3 Bh7 Rg8 b8N Rg2 Nc5 Ba6 Bc8 h3 b7 Qc6 Rg1 h1N Na4 h2 Ng3 Qf6 Nf5 Ng3+ Ke1 h1Q Na1 Nh5 Kf1 Qfh4 Qg3+ Qf4 Rb1 Qh3 Nb2 Qh2 Qh3 Qf3 Rd1 Nc5 Bg5 Ne6 Qg3+ Nef4 Nd7+ Ke6 b8R Ng6 Rb5 Nh4 Qc3 Rb8 Bd2 Ra8 Bb7 Rg8 Be1 Rf8 Nb8 Kf6 Qd2 Ke6 Bc8+ Kf6 Qg8 Ke5 Qg4 Qe3 Qg7+ Kf4 Nd7 Kf3 Qe5 Kg4 Qg7+ Kh3 Qg6 Qf3 Qg8 Rg6 Rg4 Rg7 Rf4 Rg2 Nb8 Qhg3 Qg5 Kh2 Nd7 Kh1 Qg4 Qh3 Qg3 Qh2
rN1BR3/1pN4Q/qPBBbN1R/4n1q1/Bb4QK/1P2b1p1/3n2R1/4qq1k w - - 0 1 legal: proof: b4 d5 g4 h5 gxh5 e5 f4 exf4 c4 a5 cxd5 Ra6 Bb2 Rc6 Ba3 Rc3 Bc1 Rb3 axb3 Qf6 Nh3 Qe7 Ng1 Qd8 Kf2 Ke7 d4 Kd6 e4 c5 h4 f5 e5+ Kd7 b5 g5 e6+ Kd6 h6 a4 h7 g4 h5 a3 b6 f3 Kg3 f2 e7 c4 e8B a2 h6 c3 Bf4+ Ke7 d6+ Kf6 d7 c2 d5 c1B d6 Ne7 Bb5 f1Q Ne2 Nbc6 Kh4 g3 Nec3 Bd2 Na3 Na5 Ba4 Nc4 Qg4 Nc6 Nab5 N6e5 Nc7 Be3 Rh3 Qe7 d8B Qe1 Bec6 Be6 d7 Nd2 Rb1 a1Q Rb2 Rg8 h8R Qa3 h7 Qaa1 Bh6 f4 Rh2 f3 Bf4 f2 Ne4+ Kf7+ Nf6 f1Q Rh3 Qc5 Rh1 Qcb5 Rh2 Bb4 Rh1 Re8 Rg8 Qa6 h8Q Qab1 Ra2 Qg6 Qh7+ Qg7 Be7 Ra8 Re8 Nb1 Rg2 Nd2 Qc2 Qg6 Bd6 Qg7 Bg5 Qg8 Qh7+ Qg7 Qh8 Kg6 d8N Qg8 Bd7 Qg7 Nc6 Qe7 Nb8 Qd8 Qe2 Kf5 Bdc6 Qe7 Rh3 Qg7 Qh7+ Qg6 Nfd5 Ke4 Qc4+ Kf3 Bd8 Qgd3 Nf6+ Qd5 Rg1 Kf2 Qg4 Qda5 Rgh1 Qc5 R1h2+ Kg1 Rf2 Qcb5 Rhh2 Qba5 Rhg2+ Kh1 Rf5 Qc5 Rh5 Qc2 Rh6 Qg6 Qd1 Qg7 Qg4 Qg5+
B2Qr3/p2r3k/P2qq2p/1Q2B1qN/B3q1R1/1QKnbQ1P/1bb5/1R2RN2 w - - 1 2 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 Ke7 e4 Ke8 g4 fxe4 f4 Ke7 f5 Nc6 f6+ Ke8 Bf4 Nd4 Bc1 Nf5 gxf5 Qb6 Bh3 Qc7 Bf1 Qd8 Kd2 Kf7 a4 d5 c4 g5 a5 b5 a6 b4 h3 g4 e6+ Ke8 f7+ Ke7 c6 Kf6 c7 Kg7 e7 d4 e8B h6 f6+ Kh7 c5 b3 c6 g3 Bg2 d3 Bb2 Bf5 c8R Bg7 f8Q Ne7 c7 Ng6 f7 Nf4 Qb4 Qg5 Ba4 Rd8 f8Q Rd7 Ne2 Rb8 Bd4 b2 Qb5 Bh8 Bf3 g2 Ng3 g1B Qdb3 Ra8 Nh5 e3+ Kc3 e2 Nd2 e1Q Kb4 Rb8 Ba8 b1Q Bb2 Qc2 Rb1 Qe6 Bc3 Bgd4 Rhe1 Be3 Nf1 d2 Qf6 d1Q Rg8 Qg3 Ba1 Re8 c8Q Qg7 Qcd8 Qdd6+ Qc5 Qge7 Rg4 Bg6 Qf5 Qg5 Qfd5 Qd3 Qf3 Q3d5 Bc3 Bc2 Bb2 Bhd4 Bc3 Qde4 Ba1 Qde5 Qb5 Q6d6+ Kc4 Nd3 Bc3 Bc1 Ba1 Bde3+ Bd4 Qee7 Kc3 Q7e6 Be5 Bb2+
N1qk2n1/pnN5/B1qn1P1p/Pn3K1B/1R2N3/b4QR1/1Q3rQ1/1QbbB3 w - - 0 1 illegal: No possible last move
B2QB1NQ/k2n2pN/p1B5/4R3/P2PqQRR/2bb4/2q1qnb1/1KB1qr2 w - - 0 1 illegal: No possible last move, all moves rejected
N3Bq2/5q1p/1n1r1k1b/BN1p4/n2R1K1P/Q1NrPQ1r/Q2R3B/n2n1Q2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d3 Bb7 d4 Be4 fxe5 cxd4 Ra4 f4 Ra1 Bf5 gxf5 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 Ke7 h4 a5 c4 d5 b4 g5 e6 a4 c5 d3 c6 f3 Ke3 d2 b6 a3 b5 a2 f6+ Ke8 c7 f2 c8Q g4 b7 g3 e7 Kf7 e8N g2 b6 Bd6 Rh2 Nh6 Nc3 Be7 Qg4 Nd7 b8Q Nc5 b7 Na6 Qf3 Ng4+ Kf4 Rg8 e3 Bf8 Nc7 Nc5 N3b5 Rg6 Ne2 g1R Qa7 Rh1 b8B Bg7 Nec3 Qf8 Qb3 d1N Qaa3 Ra5 Na8 Na4 Bd2 Ne5 Qc2 Ke6 f7 Nd7 Bd3 Rh6 Bg6 f1Q Rc1 a1N Qca2 Ra7 Rb1 Ra5 Rb4 Ndb6 Rd4 Kf6 Be1 Ra7 Rhd2 Rh3 Bh5 Rc7 Bg6 Rc4 Bc7 Rb4 Bg3 Rb3 Bh2 Qg8 f8Q+ Qf7 Nb1 Rd3 Bh5 Rg6 N1c3 Rg5 Bg6 Re5 Bh5 Re6 Bg6 Rd6 Bh5 Nd7 Ba5 Ndb6 Qg8 Qe6 Qf2 Bh8 Qg2 Ke7 Be8 Bg7 Kg5 Qd7 Qe1 Qf8 Qef1 Qa7 Qgf3 Qd7 Bf7 Qe6 Kf4 Kf6 Be8 Qeg8 Q1g2 Qgf7 Qgf1 Bh6+
5qQq/8/k1b3N1/bR2Q1Np/3nR1QB/KB1Q2pB/Pr4rP/2Rq1rq1 w - - 0 1 legal: proof: f4 a5 g4 f5 c4 d5 cxd5 e5 b3 Nc6 b4 axb4 fxe5 f4 Ba3 Nce7 Bc1 Nf5 gxf5 Ra5 Na3 Ra6 Nb1 Ra8 d4 Kd7 Kd2 h5 Kc2 c5 Kb2 Kc7 e4 Kb6 f6 g5 e6 g4 f7 c4 e5 f3 d6 b3 e7 f2 e8Q g3 d7 Ne7 d5 Ng6 d6 Ka6 e6 b5 e7 c3+ Ka3 b2 Nd2 b1R Ne4 c2 Qg4 Rb8 Nh3 Nf4 Neg5 Rb2 Rb1 Ne6 Nf4 Bb7 Ng6 Bc6 Bh3 f1Q Rg1 Bh6 f8R Nd4 Rf4 Rf8 Re4 Qf4 Bd2 c1Q Ba5 Qc2 Rgc1 Qd1 Bd2 Qc8 d8Q Qe5 d7 Rf1 Qc7 Qh8 Qg8 Qf8 d8Q Bg7 Bf4 Rg2 Qe5 Rb7 Qdd6 Bf6 e8B Bd8 Bf7 Ba5 Bb3 Rb6 Rc5 Rb7 Rbc1 Rb6 Bd2 b4+ Kb2 Rb8 Rb5 Rb7 Qdd5 Rb8 Qc4 Rb7 Qd3 Rb6 Bc2 b3 Bb4 Rb7 Ka3 b2 Bb3 b1Q Bd6 Rbf7 Bb4 R7f2 Be7 Rb2 Ne6 Qf2 Bh4 Qg1 Ng5 Qbc2 Qeb8 Qcf2 Qe5 Qf8+
k2N3N/n1b3p1/Q3q2Q/b2NN1Kp/1B1Pb2q/2q2r2/1q2B2P/RR1B1n1R w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 a5 cxd5 b5 axb5 Ra6 Ra2 Rf6 Ra3 exf4 Ra1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 Kd7 d4 c5 e4 Kc7 b4 Kb7 e5 h5 d6 a4 d7 a3 f6 a2 f7 c4 b6 c3 b5 c2 e6 Rh6 e7 Ka8 e8B Bd6 f8N Nf6 Qe2 Bc7 Nc3 Nc6 Nd5 Na7 Ba3 c1B Ng6 Bd2 Nh8 Ba5 Bb4 Bb7 Qe6 Rg6 Be2 Rg3 Qc6 Qc8 d8N Qe6 Bg6 Rh3 Bc2 Rg3 Bcd1 Ne4+ Kf1 f2 Nf3 Rh3 Kg2 Ng3 Ne5 Nf1 Qc4 Ra3 Qd3 Rc3 Kf3 Bc6 Ke4 f3 Kf4 Rb3 Kg5 Bb7 Rb1 a1Q Qe3 Qc3 Ra1 Ng3 Qd3 f1Q Qh7 f2 Qh6 Bc6 b7+ Kb8 Bf3 Qg2 Bfe2 f1Q Ne7 Nc8 Nd5 Ka7 b8R Qff2 Rb7+ Ka8 b6 Qgh3 Rb1 Nf1 Ra7+ Kb8 Ra6 Na7 b7 Qb2 Bc2 Rf3 Bcd1 Bab6 Raa1 Ba5 Nd3 Qe1 Ne5 Qec3 Ne7 Be4 Nd5 Nb5 Ra4 Ka7 b8Q+ Ka6 Qc8+ Ka7 Qa6+ Kb8 Qh7 Na7 Qh6 Ka8 Raa1 Qh4+
nB4B1/1N1k1b1Q/b4Bp1/rN1B3P/1q1q3Q/rR2KpP1/Q6b/rb1R1N2 w - - 0 1 illegal: No proof kernel
Q1B2BK1/2Rr2B1/qN3qnn/QN4p1/nP6/1rR1p1k1/2qN2Pq/1bN4Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 f5 cxd5 fxe4 a4 g6 axb5 Ba6 h5 Bg7 h6 Bb7 hxg7 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 a5 b4 h5 d4+ e3 b6 c5 d6 c4 d5 c3 b7 h4 d7 c2 Ke6 Kf4 Kf7 e5 d6 h3 Ba6 e4 Bb2 c1Q Ra3 e2 Nd2 e1N Rc3 Nc6 b8N a4 Ne2+ Kg4 f4 a3 f5 g5 f6 h2 Ba1 Qc2 Nc1+ Kf4 Rg1 h1Q Bb2 Qa5 d8Q a2 Nd7 a1Q Nb6 e3 d7 Nce7 Kf8 Q5a3 f7 Nh6+ g8Q Nd3 Kg7 Bb7 f8B Be4 Bc8 Kg3 Qd5 Ra7 Qa5 Nc5 Rf1 Qaa4 Rf7 Qh2 Qh1 Ng6 Qe8 Bd3 d8N Rd7 Nc6 Q4a3 Nd4 Na4 Re7 Be4 Nb5 Rd3 Rcc7 Rb3 Rc3 Bf5 Rec7 Rh7+ Kf6 Rd7 Qe4 Qd1 Qea8 Bb1 Ke6 Qc2 Kf6 Nf7 Kg7 Q3a2 Kg8 Qa3 R3c6 Q3a2 Bbg7 Qf6 Rc3 Qa1 Nbc4 Qa6 Nb6 Qab2 R3c5 Qf6 Rc3 Nh6+
b2r4/k1N2p1Q/Pq5N/rRqqqRbQ/1BR1NP2/3pQ3/3Qn3/1BKb4 w - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 h5 gxh5 Nd7 dxc5 axb4 Be2 d4 Bc4 Nb6 Bf1 Nd5 exd5 Be6 Kd2 Bd7 Ke1 Bc8 Kd2 Kd7 h4 Kc7 c4 Kb8 f4 b5 a4 g5 c6 e5 h6 g4 a5 b3 a6 b2 c7+ Ka7 c5 g3 c6 g2 h7 b4 d6 e4 h5 b3 h6 Be6 c8R Rb8 c7 Qh4 d7 Ba3 d8N Be7 Bd3 Qh5 Ra5 Qh3 Ne2 g1Q Nbc3 b1B Ng3 b2 Nf5 Bb3 Ne6 Qf3 Rh5 Nf6 Qe1 Rf8 h8Q Nd5 h7 Rd8 Qe5 Rb4 h8Q Ra4 Qh7 Bd1 Nh6 Bh4 Rc5 Ra5 Rb8 Ba2 c8Q b1Q Ba3 Be7 Bc2 d3 Rb6 Qb4 Bb1 e3+ Kc1 e2 Qd2 e1Q Rbb5 Qc4 Qd4 Qe5 Bb4 Qg6 Nc7 Qb6 Q4e3 Qh1 Rf5 Bg5 Rf6 Qcd4 Qch3 Qg1 Ne4 Nc3 Qee1 Bd5 Qh5 Ba8 Rc4 Qdd5 Rf5 Qgc5 Qee3 Ne2+
5Qq1/2Nrp3/K3r3/1Qp1Nr1Q/B3qq2/1rbPP3/N1kNRB1n/4BnR1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 h3 fxg4 Qa4 g3 Qd1 g2 Nc3 g5 Nb1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Ra3 Qc8 Ra1 Qd8 f4 Kf7 b4 Kf6 f5 Ke5 f6 Kd4 b6 a5 e3+ Ke4 Ke2 h5 b7 h4 f7 a4 b5 a3 d6 h3 b6 h2 g5 a2 g6 Ra3 g7 Ra4 d7 Ra7 Nf3 g1Q Ne5 Qc8 d8N g2 Ndc6 Rh5 Nb4 Nf6 g8N Bg7 f8Q Nc6 b8B Ng4 b7 Na5 Bb2 Qf5 Bc3 Qf4 Nf6+ Kf5 Kd3 Nb3 Qe2 c6 Nfd5+ Bf6 Nc7 Rh6 Kc2 Ke4 Qd1 Bh8 Bb5 Re6 Ba4 Ra5 Kb2 Rd5 Ka3 Rd7 Nbd3 Bf6 Kb4 Bh8 Nc1 Bf6 Na3 Bh8 Rb1 a1R Nac4 Ra3 Na2 Bf6 Rb2 Bg7 Nf7 Kd3 Qf3 Qb1 Rg1 h1R Qh3 Bh8 Qh5 Rh3 Rc2 Rf3 Rb2 Nh2 Ne5+ Ke2 Rc2 Bf6 Rb2 Qbe4 d3+ Nd2 Ka5 Rb3 Ka6 Bh8 Ba7 Bf6 b8Q Bh8 Qb5 Bf6 Rbb1 Ndf1 Rb2+ Kd1 Re2 Rf2 Nd2 Kc2 Bb8 Bh8 Rh1 g1Q Bb4 Qg8 Rg1 Bg7 Ndc4+ Kd1 Be1 Rf3 Nd2 Kc2 Bf2 Bh8 Ba7 Bg7 Bc5 Bf6 Bb4 Bh8 Ng6 Bc3 Ne5 Bd4 Qg6 Qg5 Qh5 Rf5 Bc3 Qgf4 Ndf3+ Kd1 Bce1 Bc3 Nd2 Kc2 Qc4 Qgg4 Qc5 Qg8 Qb5 c5+
rr3QK1/N1p1b1B1/R1B3nq/2Bb2rb/3Pk3/Q1P1N1p1/1b1R3Q/2R2qQ1 w - - 0 1 illegal: No possible last move, all moves rejected
qRBnbQ2/1Q3B2/pqQ1r2N/1N2NpP1/r2B1k2/Rq4q1/P6N/K1br4 w - - 0 1 legal: proof: h4 e5 b4 g5 f4 exf4 d4 c5 bxc5 Nc6 g4 Ne5 dxe5 Qe7 hxg5 Rb8 g6 Qd8 g5 Ra8 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 e4+ Ke6 c4 d5 g7 h5 c6 f5 c5 b5 c7 b4 c6 f3 Be3 b3 Nc3 h4 Rb1 a6 Qc2 f2 Rh3 d4 Nf3 d3 Ka1 d2 Nb5 d1R Nh2 Ba3 Bd4 Nh6 g8N Bd7 c8Q Nf7 c7 Bc1 Qb7 Be8 Nh6 Qd5 Rd3 h3 Qcc6+ Qd6 Be2 f1Q Bh5 Qf2 Rc3 Nd8 c8B+ Bd7 Bg6 Qg3 Re3 Rb8 Rd3 Re8 Bf7+ Ke7 e6 Qb4 N2g4 h2 e5 h1Q Nh2 Qc5 Rc3 Qa7 Rb2 Qd5 Rd3 Qa8 Re3 Qc5 Rf3 Qb6 Re3 Kf8 e7+ Kg7 e6+ Kh7 Bg8+ Kg6 Rc3 Kh5 Bf7+ Kh4 Rb1 Qe3 Rd3 Kg3 Rc3 Kf4 Rb2 Rf8 e8N Qg3 Nf6 Be8 e7 Rg8 Nfg4 Rg6 Ne5 Re6 Qbd7 Rb7 Qdd5 Rc7 Qb7 Rc4 Qdc6 Bd7 e8Q Ra4 Qf8 Be8 Rd2 Qh4 Rdd3 Qh3 Rc4 Qg3 Rb4 b2+ Kb1 Qh4 Qbd7 Qc7 Nd6 Re1 Rb8 Qb6 Ra3 Qg3 Nb5 Rd1 Qdb7 Be3+ Kc2 b1Q+ Kc3 Qd3+ Kb2 Bc1+ Ka1 Qb3
8/2BQp3/QBp3rQ/R1bNn1R1/1nP1n1b1/4qq2/nN1qP1R1/2R1Bk1K w - - 0 2 legal: proof: d4 g5 f4 b5 fxg5 b4 d5 c6 d6 b3 axb3 Na6 b4 Nb8 b5 Bb7 Ra3 Ba6 Ra1 Bc8 g4 h5 g6 a5 g5 Ra6 Bh3 Ra7 Bg4 Rc7 dxc7 hxg4 Kf2 f5 Kg2 d5 c4 Kd7 b4 Kd6 h4 Ke5 h5 Ke4 b6 a4 g7 d4 b7 a3 b5 a2 g6 d3 h6 g3 h7 d2 b6 Ke3 Nf3 f4 Nc3 Nd7 b8B Ne5 b7 Nf6 g8R Bg7 Ne1 Bg4 c8Q Ne4 Bc7 f3+ Kg1 g2 b8B Qd7 Nd3 f2+ Kh2 f1Q Nb2 Kf2 Nd5 Bh6 g7 Be3 Qa6 Bc5 Ba7 Qd6 Rg1 Qd7 Ra8 Rg8 h8Q Qd8 Rb1 a1N Bab6 Nc2 Qh6 Nb4 Ra7 Qf8 Ra1 Qe1 Ra5 Qf3 Ra1 Rd8 g8R Rd6 Rg5 Re6 Ra5 Rg6 Ra8 Nbd3 Rg8 Nb4 Qb3 d1N Bd2 Ndc3 Qd1 Nca2 Bc3 Nd6 Qd3 Qd2 Rc1 Ne4 Qd4+ Qde3 Be1+ Kf1 Qd2 Qf8 Qd3 Qd2 Qdh3 Bc8 Qd7 g1Q+ Kh3 Qge3+ Kh2 Qff2+ Kh1 Qff3+ Rg2 Rf6 Rg5 Rg6 Qd6 Bh3 Qd7 Bg4
2k2B2/nN1b3n/Qnp3B1/K2R1nQ1/RnPB1P2/6rr/1R1b1p1Q/RN4r1 w - - 0 1 illegal: No proof kernel
2qk4/r2B3r/1rR1p3/R1B2Bp1/3n1rNn/B2QP2N/3PnRn1/K3Qb1N w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 g6 a4 Kd7 axb5 Bg7 g5 Ke8 h4 Bd4 h5 Bg7 h6 f6 hxg7 fxg5 Ra4 g4 Ra3 Bf5 Ra1 Bc8 f4 a5 b4 c5 b6 h5 b7 g3 e3 g5 f5 c4 b5 g2 f6 a4 f7+ Kd7 f8R a3 b6 e6 d6 c3 Rf2 c2 Bb5+ Nc6 b8B a2 b7 h4 Nc3 h3 Ba7 h2 b8N+ Ke8 d7+ Ke7 Ne4 Bb7 Ng3 Nf6 g8B Rh4 Bh7 Nh5 Bf5 Nf4 Nh3 Qc8 Ba3+ Kd8 B7c5 g1N Qc1 Nd4 Nc6+ Kc7 Ba4 Rb8 Ne5 Bg2 Ng4 Rb6 Qb1 c1N Kd1 Ngf3 d8Q+ Kb8 Be8 Nce2 Bd7 Bf1 Rg1 Ng2 Nh1 Rh7 Qc1 Nfh4 Qb1 Nb5 Kc2 Rf7 Kb2 Nbd4+ Bab4 Rf8 Qe1 Kb7 Rc1 a1R Rc3 Raa6 Ra3 Ra7 Ra5 Rf6 Ka1 Kb8 Ba3 Rf7 Qf8 Kc7 Qd6+ Kd8 Qd5 Rf6 Qe4 Rf7 Qd3 Rf6 Bg6 Rf3 Bf5 Rf4 Be7+ Kc7 Qd1 Rbb7 Ng3 h1R Q1b1 Rh2 Nh1 Rb6 Bf8 Kd8 Qd1 Re4 Nf4 Nhf3 Q1b1 Rh7 Nh3 Nfh4 Bfb4 Ng3 Bd6 Be2 Rc1 Bf1 Rc6 Nge2 Qe1 Rf4 Bf8 Qc7 Bfc5 Qc8
2N4K/3b1Qp1/5bPB/B1r1rNNk/bQ2b1rp/4R2r/2N1BPn1/nQR5 w - - 0 1 illegal: No proof kernel
1R1R2bq/5Nk1/B7/bQbN3Q/rp2N2n/R1P1B1pK/2rPpnRQ/1n6 w - - 0 1 illegal: No proof kernel
R3QQN1/1R1N4/QB4Q1/1rpb1qpn/5knb/1PbR4/1rK2P1p/1B1N1n2 w - - 0 1 illegal: No possible last move, all moves rejected
1Bb1B1kN/1N4q1/4rR1p/4Q1P1/Q2Kn1nb/P1Q3B1/Qr1ppb2/rR3N2 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 c5 hxg5 Nc6 dxc5 Nb8 Ke2 Kf7 Ke3 d5 f4 e5 g4 b5 c4 h6 a3 b4 g6+ Kg7 c6 b3 c7 b2 c5 Be6 c8Q Be7 f5 Nd7 f6+ Kf8 a6 Nb6 g5 Bf7 g7+ Ke8 a7 Bh5 c6 Kf7 c7 Rb8 a8Q Be2 Nf3 Qf8 Qd4 Bc5 Nbd2 b1R Nh4 Nd7 Qa4 R8b2 Ng6 Bg4 Bb5 Bh3 Ra2 Ra1 Nf1 Ba7 Bd2 Nc5 Be1 Rh7 Qb8 Bc8 Bg3 Bb6 Qc3 Rh8 Nd2 Qe7 Rb1 d4+ Kf2 d3 Ke3 Rh7 Nf1 d2 Be8+ Ke6 f7 Nf6 f8B Ng4+ Ke2 e3 g8Q+ Qf7 Nh8 Ne4 Kd3 e2 Bd6 Bf2 Qbb5 e1B Qba5 Rb7 Rc2 Rb2 Qac5 Rg7 Q5a5 Rg6 Q5b5 Bb7 c8N Ba6 Bc7 Bb7 Nd6 Bc8 Qbc5 Ke7 Rcc1 Qg7 Qa2 Kf8 Bb8 Re6 Nb7+ Kg8 Qcd5 Nc5+ Kc4 e4 Qde5 e3 Kd4 Ne4 Rd1 Rc2 Rb6 Rb2 Rb1 e2+ Kc4 Re7 Rf6 Re6 Bh2 Bh4 Bg3 Bf2 Kd3 Ne3 Kd4 Ng4+
1nr5/3Rbr2/NnPqkrB1/Q5K1/b3N1pB/1pnB3R/NPQ4p/4B2Q w - - 0 1 illegal: No proof kernel
3BBRQ1/1q1rB2P/b2N1r2/4b3/Nr2NQp1/3nQppR/2K1P1nn/5kB1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 b4 g3 h4 Kd7 d4 f5 Kd2 c5 b6 g5 d6 Kc6 e6 Kb5 d7 Kc4 e7 a5 e8N f4 d5 a4 b7 f3 b5 a3 h5 a2 h6 Ra6 d6 Qe7 b6 Nc6 b8Q Nf6 h7 Na5 b7 Bg7 Nh3 Kd4 Qb3 c4 Nc3 Ng4 Nf2 Ra7 d8Q Rf8 d7 Rf4 Rh5 Nh2 Ba3 Qf7 Kd1 Ke3 Bh3 Qe7 Bf5 g4 Rh3 Re4 Rc1 a1R Bg6 Rb1 Bb4 Rf4 Na4+ c3 Ne4 Nc4 Qbc7 Qf7 b8B Ba6 Ba3 Rb7 Ba7+ Bd4 Qdb8 Rf6 Bb6 Qd5 Be7 Ra7 Qa3 Rb4 Qe5 Rc7 N8d6 Qc6 Qg8 Qb7 Ng5+ Kf2 Nge4+ Kg2 Qf4 Be5 Bg1 Kf1 Rc2 Ne3+ Kc1 Rb2 Qc5 Ng2 Qce3 Rb5 Bh5 Qb6 Rb2 c2 Kd2 c1N Rc2 Rb7 Rc8 Qc6 Rf8 Rb4 d8B Rd7 Be8 Qb7 Kc2 Nd3
kN2N3/r2q2pQ/3Pnp1R/pb2b2K/N5P1/R2Q1b1r/2QnN1B1/nB4R1 w - - 0 1 illegal: No proof kernel
2b1K3/2R1rPqN/1B4N1/Q3B1rk/1npr1PRB/Q2Q1p2/p1BR2nn/4b3 w - - 0 1 illegal: No proof kernel
3R2b1/2BRbpn1/1pQ3bB/2N2P1Q/1k3N2/rnr1BP1K/1N2rp2/4RB1q w - - 0 1 illegal: No proof kernel
1Q2n3/r2ppkrN/1P1r1p2/B2nB3/R1Q2b2/1B2n1P1/b3RR2/2N1KQqQ w - - 0 1 illegal: No proof kernel
2Q5/1rpR1pr1/RNbBq1pk/1N1B1nn1/2rP1bP1/1Kn4B/3R4/N2Q2R1 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf8 h6 Qd6 Nf3 Qe5 Ng1 Qg7 hxg7 Be6 Qa4 Bg4 Qd1 Bc8 e4 h5 g4 a5 d4 h4 Kd2 f3 Kc3 a4 b4 a3 d6 h3 e5 a2 b6 h2 b7 f2 e6 Rh3+ Nf3 Nh6 g8Q Nf5 d7+ Ke7 d8R Kf6 b5 Bc5 b6 Ra6 e7 Ra7 e8B Rh7 Ne1 Rg7 Nc2 Nd7 b8R Bb7 Bh3 f1Q Bf4 Bd6 Kb3 Qe2 Nba3 Ne5 Bc6 Nf3 Rg1 h1N Bd5 Bc6 b7 Nf2 Nb5 Ne4 Rd7 Nfg5 Qc8 Nc3 Ra8 Qe4 b8N Rb7 Ra6 Qe6 Rg2 Be5 Rd2 Bd6 Rb1 a1R Rc1 Ra4 Na1 Rc4 Rb1 Ba3 Bd6 Bb4 Qc2 Ba3 Rg1 Bb2 Qd1 Bc1 Rd3 Bf4 Rd2 Nf3 Re7 Kg5 Nd7 Kh6 Nb6 Ng5 Rd7 Qe1 Qf8 Qe5 Qc8 Qe6
n5Nb/pRb2Qr1/qPnR4/1NRpp2n/Q3B3/BK2R1N1/P3r3/kb4Q1 w - - 0 1 legal: proof: e4 b5 c4 h5 g4 c5 gxh5 f5 exf5 bxc4 d4 Qc7 dxc5 Qd8 Kd2 Kf7 Kc2 Kf6 h4 Ke5 b4 d5 f4+ Ke4 h6 g5 h7 e5 f6 c3 c6 g4 f7 g3 f5 g2 b5 Qe7 f6 Bh3 b6 Bd7 c7 Qe8 c8N Qd8 h5 Qe8 h6 Qe6 Rh3 Na6 Bd3+ Kd4 Kb3 c2 Na3 Bd6 f8Q Ne7 f7 Bc7 Qe8 Nc6 f8Q Qg4 Qef7 Bf5 Q8g7 Qe2 Ne7 Rag8 Re3 Qf1 Qg5 Rg7 Ng8 Bg6 Be4+ Qd3+ Ka4 Kc3 Rb1 Bf5 Rb5 Bg6 Nc4 Bf5 Ba3 c1B Nd6 Bd2 Qh4 Be1 Qhg4 Bh4 Qa1+ Kc2 Ne2 g1N Ng3 Ne2 Qg1 Bf6 Qh4 Nf4 Rc5+ Kd2 Nb5 Nh5 Qf4 Qf1 Kb3 Bg6 Bf3 Bb1 Be4 Kd1 Ne7 Rf8 h8R Rc8 h7 Rcg8 Ne2 Rg2 Qh4 R8g7 Ng3 Re2 Rd8 Kd2 h8R Kd1 Ng8 Kd2 Rd6 Kd1 Nc3+ Kd2 Bb4 Kc1 Ka4 Kb2 Nb5 Ka1 Kb3 Rg6 Rh7 Bh8 Ba3 Rg7 Nh6 Bd8 Qhf4 Nc7 Ng8 Na8 Qg4 Rf2 Qd1 Bc7 Qc2 Qe2 Qc4 Qf1 Qa4 Re2 Qg2 Rc2 Nc3 Rg6 Qe7 Qa6 Nb5 Bd8 Qg1 Re2 Qe6 Rg4 Rb7 Rg7 Qf7 Bc7
1K1n1N1k/pq5B/p1rRB3/b3R1Pn/3r2b1/2r2Q1R/Qp2N2P/1b1NBR2 w - - 0 1 illegal: Other
N2b1Q2/2BN3B/2nq2b1/2qk1NR1/1Pp3R1/1p2KRn1/QQn2p1P/2r1Qr2 w - - 0 1 illegal: No proof kernel
3bN1R1/3b2B1/2q1r2B/1n2qBP1/2r2QRp/1p2QQ2/NnPpQ3/k3KR1b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 g6 e5 f4 Ke7 g4 Kf6 a4 b5 g7 d5 a5 h5 a6 h4 c6 e4 a7 d4 c7 e3 Bh3 d3 Rh2 e2 Na3 Nc6 Nc4 Qd7 Kf2 e1Q+ Kf3 Be7 Rg2 Nh6 Ne2 Bd8 Nd6 Re8 g8R Re6 Nc3 Nf7 Na2 Na5 Rg3 Qe4+ Kf2 Nc4 Qe2 Qd4+ Be3 Qc6 Rf1 Qdd5 Bc1 Bd7 Ke1 Rb8 Nc8 Nfd6 a8Q Qcc5 Qa7 Qcc6 Qf2 Ra8 Bb2+ Qd4 Qfe3 Ra4 Bc3 b3 Rgg1 b2 Rg2 Nf7 Nd6 b4 g5+ Ke7 Ne8 Nfd6 Rgg1 Nb5 Rg3 Qdd6 Bg7 Qdc5 Nf6 Kd6 Ne8+ Kd5 Bh6 Be7 f6 Bd8 f7 Qd4 f8B b1B f5 Qdc5 Nc1 Ba2 f6 Qd4 f7 Qdc5 Q3d2 Kd4 Qde3+ Kc3 Bfg7+ Qd4 f8Q Kb2 Qff2 Ka1 Bf5 Nb2 Rg4 Bd5 Na2 b3 Qg2 Rc4 c8Q Qf4 Qb8 Qg3+ Qgf2 Bh1 Q2f3 Qgd6 Q2e2 Qdc5 Qbg3 Qe5 Qgf4 d2+
B3k2N/nr2b3/3R1B2/QP3Rb1/b1n1RNp1/2r3PQ/pp2q2q/KRB1Q3 w - - 0 1 illegal: No possible last move, all moves rejected
4B3/NRR2Q2/B4rp1/nBBPq2N/2b1K1Qr/1n2p1r1/1P1p4/b1Qq2Nk w - - 0 1 illegal: No proof kernel
1B3n2/N3R1rN/1RPbK1p1/Qp1NQ2p/2N3P1/3Bqq2/R2B2kn/1b3q1r w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g6 b4 axb4 h4 Ra4 h5 Ra8 h6 Qb6 Be3 Qf6 Bc1 Qg7 hxg7 Ra6 Rh3 Ra5 Rh1 Ra8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 g4 h5 a4 e5 a5 d6 f6 b3 f5 b6 f7 b2 a6 Ne7 g8R Bg7 f8N Nec6 a7 Bh6 f6 Nb4 c6 Rh7 f7 Nd7 c7 Rg7 Ne2 Kf3 Na3 b1Q Qd5+ e4 Qe5 e3 Nf4 e2 Nh7 e1Q f8B Nc6 Kd5 b5 c4 Nd4 c5 Qe3 c6 Kg3 Bd2 Nf3 Rh8 Nh2 Bd3 Qf1 Ke6 d5 Nc4 d4 Nd5+ Kg2 Ra2 Bf4 Bd6 Qff3 Re1 Bg3 Be2 d3 Re8 Bf4 Re7 Bg3 Rea1 Qf1 Ra6 Bf4 R1a2 Qff3 Bc1 d2 Rb6 d1Q Bd2 Qdf1 Bd3 Nb8+ Kf6 Bf5 c8N Be4 Ke6 Nd7 Bb8 Bg3 Be2 Bb1 Bd3 Bf4 Qe4 Bc7 Qe5 Bd6 Bc7 Rb8 a8Q Rb7 Bb8 Ra7 Rb7 Ra3 Qa5 Rc3 Na7 Rc1 Bc2 Q1f2 Be4 Rh1 Bd3 Qf1 Rb6 Nf8+
6nR/kNB1B3/pb3P1Q/1Qr2r1p/R1B4P/npn1R1Bq/Q7/Nb1q2K1 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 dxe5 f5 gxf5 Nh6 axb5 Ng8 b4 cxb4 f4 d5 Kf2 Kd7 c4 Kc7 e4 Kb6 f6 g5 e6 a6 e5 d4 e7 g4 e8R d3 f5 d2 c5+ Kb7 e6 b3 e7 h6 c6+ Ka7 f7 Qd7 f6 Qd3 c7 Qd6 b6+ Kb7 Qc2 d1Q Ne2 g3+ Kg1 g2 Bf4 Bf5 Qa2 Qe1 Nbc3 Bd3 Nb5 Qe6 Bg3 Nd7 Ned4 Rb8 c8Q+ Ka8 Nd6 Bh7 b7+ Ka7 Qc1 Qd1 Nc2 Nb6 h4 h5 Qh6 Qeg4 Rh3 Nc4 Rc8 Na3 e8Q Be7 f8B Bd8 Qb5 Qe6 Be7 Bb6+ Kh2 g1N Bc4 Ne2 Rf8 Rc8 b8B+ Ka8 Rd8 Rc5 Nb7 Nc3 Bbc7+ Ka7 Re8 Bf5 Rc8 Rh7 Rb8 Rg7 Kg2 Qdd6 Kg1 Qd1+ Ne1 Qd4+ Qf2 Rg5 Nc2 Nab1 Ra4 Na3 Na1 Bb1 Rh2 Qh3 Rd8 Qd6 Qa2 Rgf5 Re2 Qd5 Re3 Qf3 Qg5 Nh6 Rh8 Ng8 Qh6 Qd1+
Q1R2Q2/4B2p/1N2QqB1/nb1q3K/R1b2np1/2R1P3/P1r1p2B/k1b2BNr w - - 0 1 illegal: No possible last move
KQ2Bbk1/2BN3p/2Q1q1b1/Q1R4R/1r1Pqppn/1PN2r2/BB3r1R/n7 w - - 0 1 illegal: No proof kernel
Nk3nK1/4B1Rp/B1QRr2n/qBp3Qq/Nr2Rpr1/4B1PP/3b4/bN6 w - - 0 1 legal: proof: c4 g5 d4 b5 f4 bxc4 fxg5 d5 a4 Bg4 e4 Nf6 exd5 Bc8 d6 Bd7 d5 Bb5 axb5 Ng8 Ke2 Kd7 Ke3 Kc8 Kd4 a5 Ke5 f5 Ke6 c5 Kf7 e5 b4 f4 h3 c3 g6 c2 b6 a4 g7 e4 d7+ Kb7 d6 e3 b5 a3 g3 e2 Be3 c1B Qd5+ Nc6 Qg5 e1Q Ne2 a2 Nec3 Ba3 Na4 Nf6 g8B Kb8 b7 Qb6 d8R+ Ka7 b8N Nd7 Na6 Ne7 Nc7 Rb8 Na8 Qba5 b6+ Kb7 Bb5 Qd1 Re1 Bg7 Re2 Nf8 d7 Nf5 Ba6+ Kc6 b7 Bc1 Re1 Bd2 Re2 Rc8 b8Q Be5 Qb2 Rb8 Qb7+ Kd6 Qe4 Rb4 Re1 Bb2 Qe8 Kc6 Bb5+ Kb7 Qe4+ Ka7 Qc6 Ba3 Ba6 Nh6+ Kg7 Bac1 Bgc4 Qh5 Bcb5 Bc3+ Bd4 B3d2 Re4 Ba3 Be3 Bb2+ Rd4 Bbc3 Re8 Bb2 d8B Kb8 Re4 Bbc3 Be7 Bb2 Na3 Bbc3 Rd1 a1R Nb1 Ra3 Re1 Ba1 Rd1 Rc3 Rd7 Rd3+ Nbc3 Rd5 Ra7 Re5 Nb1 Ng6 Rd7 Rc8 Rd6 Nf8 Kh8 Rd8 Rg6 Re6+ Rg7 Nf7+ Kg8 Rd5 Qg4 Rg5 Qf5 Rg4 Qg5 Bc1 Rd5 Bd2 Rd6 Nh6+
2N2Qq1/b3nB1p/1PRrbBp1/p4PR1/3RK3/1k1B2nq/1B2Q3/r3rNQ1 w - - 0 1 illegal: No proof kernel
2Qn1N2/2Nr3p/pk2br2/1q2Nn1B/q3KBp1/P1P1R3/Q1bR4/2B1qNQ1 w - - 0 1 illegal: No possible last move
5B1q/2QN2p1/4qqb1/3BR3/2QPQrk1/1R1pp3/1NrP1Bb1/BKn1Rn2 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 d5 c3 e6 Qg4 d4 Qd1 d3 Ba3 Bc5 Bc1 Bd4 cxd4 Ra7 Bh3 Ra3 Bf1 Ra8 a4 Kf7 h4 Kf6 f4 b5 a5 c5 a6 e5 a7 c4 h6 c3 h5 c2 h7 b3 h6 e4 Nf3 b4 Ne5 b2 Bg2 e3 Nd7+ Kf7 f6 Ke6 f5+ Kf7 Rh5 b3 Nc3 b1Q Na4 Qe8 Bb2 c1Q Bd5+ Qe6 Bc3 Bb7 Nb2 Qcc2 Qc1 Ne7 Ra3 Rf8 h8Q Qa1 h7 Nbc6 Rg5 Rac8 a8Q Qcb1 Kd1 Nb4 Qb8 Rc6 Qc7 Na2 Rg1 Rc4 Re1 Rc6 Bb4 Rc2 Bc3 Nc6 Ra5 Ne5 Ra3 Nf3 Qg8+ Ke8 h8R Nh2 f7+ Ke7 Rh5 Nf1 Qh7 Ba8 Qc4 Bc6 f6+ Kd6 Na4 b2 Re5 Bb7 Rb3 Ba8 Bh1 Bg2 Qf5 Rh8 Qe4 Rh4 Ndc5 Rf4 f8B+ Kc7 f7 Kd8 Na6 Kd7 Bd6 Qf6 Bb8 Qe6 N6c5+ Ke7 f8B+ Kf6 Qb7 Kg6 Nd7 Qf6 Re6 Kh5 Qe4 Kg4 Re8 Nb4 Re5 Qba2 Bc7 b1B Nb2 Qa8 Bcd6 Q1a6 Bde7 Qfe6 Bh4 Ba2 Bf2 Qb8 Na4 Qf6 Ba1 Qae6 Nb2 Qbe8 Qc7 Qh5 Ra3 Bd5 Rb3 Qh8 Qc4 Na2 Qc7 Rc5 Qc4 Bc6 Nb8 Be8 Nd7 Nb4 Kc1 Na2+ Kb1 Nc1 Qa4 Rc2 Qac4 Bh5 Qh7 Bh3 Bd5 Bg2 Qe4 Bg6
bB4Q1/2rk2pB/3pRBB1/r3P2N/2Qq1p1q/1Q3b1R/2R1Pb2/2N1nn1K w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kg2 a5 c4 d6 b4 a4 h4 a3 c5 a2 c6 d3 b6 d2 b5 Ra4 c7 Ra3 b7 Nd7 b8B Re3 b6 Rh3 b7 Ne7 h6 Ra3 h5 Rg8 h7 Ra4 h8R Ng6 h6 Nc5 h7 Qd7 Qb3 d1B Qc4 Ke7 Rh3 Qb5 Kh1 Nh4 Nd2 Bc2 Bg2 Qb4 Nb3 Ne4 Bg5+ Kd7 Bf6 Ra5 Nc1 Nd2 Be4 Be7 Bd3 Rd8 Re8 Ng2 h8Q Nf1 Qhg8 Qe1 Rb1 a1Q Rb2 Qh4 Be4 Ba4 Rc2 Bc6 Bd3 Qad4 Be4 Bf8 Re6 Re8 Bd3 Bf3 Be4 Re7 Bd3 Ke8 Be4 Bd7 c8B Bc6 Bd7+ Kd8 Be8 Bd5 Bg6 Kd7 Rh2 Rf7 Nh3 Be7 Nf4 Bd8 Nh5 f4 Rh3 Bb6 Bc7 Ba7 b8Q Ba8 Qb2 Qd1 Qbb3 Bf2 Bef5 Qd4 Bb8 Re7 Be8+ Kd8 Bc7+ Kc8 Bb8+ Rc7 Bf7+ Kd7 Bh7 Be3 Bfg6 Bg1 Qb2 Bf2 Qbb3 Ne1+
2B2nRq/2b3pk/1PNR2q1/Rp4Q1/pB1P2rr/4nQ2/NQ3K1n/R2b1B2 w - - 0 1 illegal: No proof kernel
2b2qB1/Q2Qq1p1/pR1b1n1N/k1B2K2/P2N4/nrp2QP1/R1q4R/3r1N1Q w - - 0 1 legal: proof: c4 c5 e4 f5 exf5 d5 Qh5+ Kd7 Qxh7 Ke8 b4 dxc4 bxc5 Qd4 Bd3 Qd6 Bf1 Qd8 Ke2 Kd7 Kf3 Kc6 Kf4 Kb5 h4 b6 a4+ Kb4 d4 a6 c6 e6 c7 b5 h5 c3 h6 Nf6 d5 Qe8 d6 Ng4 g3 Ne5 f6 Bb7 c8R Nf7 d7 Rg8 d8Q Nd7 Rc6 Nb6 Bc4 Bc8 Be3 Ra7 Nd2 Ka5 Ngf3 b4 Ra2 b3 Nf1 Ng5 f7 b2 Bc5 b1Q Kg4 Re7 Nd4 Qb3 f4 Qc2 f5 Bd7 f6 Ne4 Qc7 Qc8 Qa7 e5+ Qf5 Re6 Rh2 Bd6 f8Q Qe8 Bd5 Nc4 h7 Na3 h8N Bb8 f7 Rd6 Ne6 Qd8 Bc4 Rd1 Nd4 Bd6 Be6 Qf6 Qfa8 Rb8 f8Q Rb3 Nf7 Bc8 Nh6 Qd8 Qfe7 Qf8 Bg8 Nf6+ Kg5 e4 Rb6 e3 Qed7 e2 Qh1 e1Q Qff3 Qb2 Kg6 Qee7 Kf5 Qc2+
r1rK1QB1/4P2Q/2Np2R1/1kb2n1P/2b4r/1q3pRp/Rq3B2/R1n1BNQ1 w - - 0 1 illegal: No possible last move, all moves rejected
r2q1nk1/NbNQp1B1/R1qB2q1/5K2/B1n3Np/PQp1Pb1r/7R/5RB1 w - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 h4 Bh6 h5 Ra6 g6 Bf4 g5 Be5 h6 Bg7 hxg7 Ke8 Ba3 Ra7 Bc1 Ra8 Kf2 h5 Kf3 f5 Kf4 c5 d4 b5 d6 c4 d5 b3 a3 b4 Rh2 h4 Nh3 b2 Nf2 b3 Ng4 Qa5 d7+ Kd8 Nc3 b1Q Nb5 b2 Na7 Nf6 g8N c3 g7 Qb5 g6 Ne8 N8f6 Qc2 g8R b1Q g7 Kc7 d8B+ Kd6 Bb6 Nd7 Bg1 Qc6 Rf8 Qca2 g8Q Bb7 Bce3 Qab2 Bd4 Qbb6 e3 Qd8 Bb5 Qc2 Rf7 Nf8 Ba4 Qb1 Kg5 f4 Qd3 f3 Kf5 Qc2 Rf1 f2 Rg7 Rh7 Rg6 Rg7 Rh6 Nc7 Rg6 Nb5 Ne8+ Kd7 Nc7 Nd6+ Kf4 Nc4 d6 Qb1 Kf5 Qb6 Qd5 Rg8 Bg7 Qb1 Ne6 Ke8 d7+ Kf7 Qb5 Qc2 Qb3 Qb1 Nc7 Qc2 Re1 f1B Re6 Bg2 Rf1 Bf3 Rh6 Qe8 d8B Qd2 Qd7 Qdd6 Be5 Rg6 Bg7 Kg8 Na6 Qg3 Bc7 Qd8 Bb8 Qg2 Bd6 Qg3 Nc7 Qg2 Nf2 Rg3 Ng4 Rh3 Bc5 Qb5 Ra6 Qc6 Bd6 Qc2+ Kg5 Qh7 Kf4 Qh6+ Kf5 Qg6+
Q2N1N2/b1NbpPp1/2pQ3r/2nb2nq/4k3/QR3rq1/PB4B1/N1R1BK2 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1BR1Qq/n2pb1q1/rp4Pk/3N2NN/p1B5/3RK3/P2n1QbR/3b1Qr1 w - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 f5 exf5 g5 b4 Na6 bxc5 Nb8 h4 gxh4 Kd2 Kf7 f4 Kg7 c4 a5 g4 h5 e6 a4 e7 h3 e8N+ Kh7 f6 h2 f5 h4 g5 h3 f7 b6 c6 Ra5 g6+ Kh6 c7 Ba6 c8Q Qe7 f6 Bb7 c5 Bd5 c6 Ra7 c7 Kg5 Ng7 Qd6 Nc3 Rh6 Ke3 Bb3 Nd5 Qb4 Bc4 Be7 f8Q Nc6 f7 Nf6 Nh5 Ne4 Qg8 Nd2 f8Q Ra6 Qdf1 Na7 Q8f2 Bd1 Qb8 Qb2 c8R Qg7 Re8 Rh7 Ba3 Kh6 Nf3 Rh8 Ng5 Rh7 Rg1 h1Q Rg3 h2 Bd6 Rh8 Bc7 Rh7 Bd8 Rh8 Nc3 Qa8 Rh3 h1B Nd5 Bg2 Rc1 Rh7 Rc3 Rh8 Qe6 Rf8 Rh2 Rf4 Qg8 Rg4 Qb7 Qb8 Rd3 Qbe5+ Ne4 Qh8 Qb8 Qeg7 Ng5 Be4 Bb5 Rg1 Bc4 Bg2
5q1n/2P1K1b1/3Q2b1/BpN3Q1/BppNPn2/5R1B/2q1r1rQ/N1k1NR1r w - - 0 1 illegal: No proof kernel
rKN3Bk/1bp1P2r/1Qp1n3/1QB1r3/3b1B1R/N1n5/R1Qp3P/q1q1R1R1 w - - 0 1 illegal: No proof kernel
1k3B2/n1pP2qb/1pP5/1nq2b2/Br3R1p/B1R1Q1KQ/Rr4n1/1NBN1Q2 w - - 0 1 illegal: No possible last move, all moves rejected
rKNr1B1N/1Pp2R1Q/b2RN2p/qq2n1b1/8/BP2bB2/Qn2Rp2/2N2k2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 a5 b3+ Kb4 b6 f3 d6 f5+ Kd5 h6 e4 f4 g6 a4 g7 f2 d7 a3 g5 a2 e5 f3 e6 Qf6 d8B Qf4 e7 Bd7 e8R Qd2 g6 Qc3 Be7+ Ka5 Nd2 Nc6 Bca3 Bf5 Bg2 Kb5 Qe2+ Qd3 Nc4 f1Q Rd1 a1B Qa2 Rh7 Ne5 Ra7 Ne2 Qb1 Nc1 Na5 Nf7 Bd3 Nh8 Nc4 b7 Be2 Ke6 Nb2 Kd7 Nf6+ Kc8 Nd7 g8Q Ne5 g7 Qf5+ Kb8 f2 d5 Qe1 d6 Qa5 d7 Bc4 Beb4 Be7 d8N Bg5 Bf8 Kb6 Rd5 Ba6 Rh3 Qd3 Qf7 Qdb5 g8N Be3 Qf5 Rd7 Ne7 Rd6 Ne6 Rd8+ Nc8+ Kc6 Bf1 Bg5 Rd4 Be3 Rf4 Kd5 Rff3 Bg5 Be2 Be3 Qf7 Ke4 Qg7 Bg5 Rf7 Be3 Rg3 Bg5 Rg2 Ke3 Qh7 Kd2 Rg3 Ke1 Bf3 Kf1 Rg4 Nd1 Re4 Bd4 Re2 Nb2 Ree7 Bb6 Rd7 Bbe3 Rd6 Ra8+
N1k3q1/1pq2B2/6R1/1P1R3N/1Kp2r2/QQ4R1/1b1qBpPB/n1rnb1BN w - - 0 1 illegal: No proof kernel
1Q1n1Q1N/bpB2N2/b1P1r1P1/qk3Kn1/4R3/BB3pb1/qrR1p1Q1/2B2R2 w - - 0 1 illegal: No proof kernel
1BbbnrR1/Pq4K1/1Q2p2p/P1BNp3/3R2Q1/NqrBq1NR/6k1/R3n3 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 d5 hxg5 a4 cxd5 a3 e5 f6 bxa3 fxe5 a4 Bg4 a5 Bc8 Ke2 Kf7 Kf3 Kg6 Ke4 b5 g4 h6 f4 b4 d4 b3 a4 b2 d6 Ra7 d5 Bg7 d7 Ba6 d6 Bc8 f5+ Kf7 f6 Ke6 f7 Rh7 f8B Ra6 g6 Rh8 g5 Rc6 a6 Rc3 a5 Nc6 a7 Nd4 Ne2 Bf6 g7 Nf3 g6 Ne1 Rh3 c5 Na3 c4 Be3 Qc7 d8Q Bh4 Ng3 b1Q+ Bd3 Qb3 d7 Kf6 Bd4 Kg5 Bc5 Qcb8 Kd5 Kf4 Ke6 Nf6 Kf7 e6 g8N Nd5 g7 Q8b7 Ne7 Nc7 g8R Bf6 Bd6 Ke3 Kg6 Kf2 Qg4 Kg2 Nd5 Be7 Bc5 Bh4 Bfd6 Bg5 Rg7 Rf8 Rg8 Be7 Kg7 Bh4 Qe8 Bd8 Qeg6 Rc2 Qd4 c3 Qgg4 Rc1 Qb4 c2 Qb5 Rb1 Qb6 c1Q Nc4 Qe3 Na3 Na8 Bb8 Nc7 Bb4 Rc1 Bc5 Be7 d8R Rc3 Nb4 Bh4 Rd4 Bd8 Nd5 Ne8+
1rb2bN1/pQ1B3k/R3N1pn/r3B1B1/2p2R2/1n1PnQ2/Bq1Q2KP/1q1R4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 f5 e4 Kf7 b4 c5 d6 g6 b6 Kg7 b7 f3 h6+ Kh7 e5 f4 b5 Qf6 e6 Qe5 b6 Qh5 e7 Bg4 e8B Qf5 d7 Qc2 d8Q Be7 Ne2 Bg5 Ra6 Bf5 Nd4 Ne7 Bc4 Qd3 Ne6 Qd7 Nc3 Ng8 Ne4 Nc6 b8Q Qb7 Bd7 Nd4 Ba2 c4 d3 Be7 Qf8 Bb4 Qd2 Nb3 Rd1 Bd6 Kf1 f2 Kg2 f1N Qbc8 Qb8 b7 Bc5 Qf6 Bf8 Qc6 Qe5 b8R Qb2 Qb7 Bg4 Rd8 Rc8 Qf5 Rc5 Qh5 Bf5 Qf3 Ra5 Rc8 Nf6 Rcc6 Ng4 Rd6 Rg8 Rd4 Nfe3+ Kg1 Kh8 h7 Nh6 Nf6 Bg4 Qfc6 f3 Rf4 f2+ Kh1 Bd6 Qf3 Rb8 Ng8 Bc5 Nd8 Kg7 h8B+ Kh7 Be5 Bf8 Ne6 Qa1 Ba3 Qb2 Be7 Bf5 Rg1 f1Q Bg5 Qfb1 Rd1 Be4 Qb6 Bb7 Kg1 Nc2 Kg2 Bc8 Qbb7 Ne3+
1Q4R1/p3Q2P/B1Kq3p/P2r1BR1/2N1n2N/1Brb1npq/Rb1r3R/6kN w - - 0 1 illegal: No proof kernel
Rb2B2n/p2Qp1QR/1PRrB1P1/2NbN3/1p1q1Kn1/BQ5Q/4k3/1r1qn3 w - - 0 1 illegal: No proof kernel
3k3r/pp1nN3/QN1NRP1R/6B1/b1q1B1BK/4nPp1/2r1Bb1R/1Q2qb2 w - - 0 1 illegal: No proof kernel
4r3/k2n1QN1/q2BN2R/1bK2PBp/3r2Rb/nP1Rb2b/1BpQB1p1/2N5 w - - 0 1 illegal: No possible last move, all moves rejected
4BbQB/K2n4/R1b1b1qk/n2p4/N1pr2R1/2r1P1P1/pRB1BN1b/1Q3Q2 w - - 0 1 illegal: No proof kernel
2R3R1/4R3/BR2p1pN/Q1PQ1n2/1n3K2/2Q1qbp1/1bPrrBbk/1N2b2N w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 b4 Ke5 f4+ Kf6 h4 d5 b6 a5 h5 g3 b7 g6 b5 a4 b6 a3 h6 e6 h7 a2 Ba6 Be7 Nh3 Ra7 Nf2 Nc6 b8Q Bd7 b7 Bd6 Qa8 Be5 b8R Bb2 Rb6 d4+ Ke4 d3 Be3 Kf7 f6 d2 f5 Nb4 Kf4 Ne7 Qdf3 d1B Qfd5 Rf8 h8Q Bc6 Rh7+ Ke8 Rf7 Bf3 Nh1 Rd7 Bf2 Bc3 Rg7 Be1 Rg8 Rd6 f7+ Kd7 f6 Nf5 Qe4 Rd2 Qd5+ Kc7 Qg7 Re2 Qh8 Qd7 Qg7 Rd8 f8N Bb7 f7 Qb5 Qc3 Qd3 Qe4 Bg2 Qed4 Bbf3 Nh7 Rd6 f8R Kd7 Rb7+ Kc6 Ng5 Rd5 Nf7 Rd8 Qe3 Kd5 Qed2 Rd7 Rc8 Rd6 Kg5 Ke4 Nh6 Rd8 Qa7 Rd6 Re7 Rd7 Na3 Rd6 Rc1 a1B Rb1 Bb2 Qc7 Qc4 Qd1 Rdd2 Qb6 Qd3 Qa5 Bc1 Rb3 Bb2 Nb1 Nc6 Rb6 Nb4 Kf6 Kf4 Nf7 Kg4 Nh6+ Kh3 Kg5 Kh2 Kf4 Ba1 Qc4 Bh8 Qd5 Ba1 Qc1 Bh8 Qca3 Bb2 Qc3 Qe3+
1R5b/k3N1QB/1p1R1Kp1/1p4r1/n1n3r1/2qrBRP1/Q3Pb1r/2NN1NQ1 w - - 0 1 illegal: No extended proof kernel
5r2/QQBb3p/R1R1Q2r/BN5k/Rpr1q3/R1P4P/Kp6/N1b1Nnrn w - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 f5 dxe5 c6 g4 Ra7 gxf5 Be7 Bg2 Ra8 Be4 Bd6 Bd3 Bf8 Bb5 cxb5 Kd2 Kf7 Kc3 g5 Kb3 d5 a4 d4 e4 b4 f4 b5 f6 Kg6 e6 g4 f5+ Kh5 e5 d3 a6 d2 a7 Qe8 h3 Qd8 c3 Bh6 a5 Bf4 e7 Bh6 e8Q+ Kh4 a6 g3 e6 g2 e7 Bf4 f7 Bh2 f8B Nd7 f6 Bb8 f7 Bh2 Ra4 Nh6 Qf3 d1R Ka2 Ne5 Qb7 Ng8 Nd2 Be6+ Nb3 Bd7 Bf4 Rd4 Na1 Ng4 Bc7 Nf2 Nf3+ Kh5 Ne1 g1R Ba5 Rc8 a8Q Nh6 a7 Rc6 Bg7 Ra6 Be5 Bf4 Bec7 Bc1 f8R+ Rag6 Qab8 Nf5 a8R Ne3 Q8a7 Rc4 Rf6 Rf8 Rc6 Nf1 Qf7 Qc8 Qe6 Rh6 e8N Qb8 Nd6 Qe8 Rh2 Nh1 Rb2 Qg6 Rb3 Qg4 Rba3 b3+ Kb1 b4 Nb5 b2 Ka2 Rg6 Qab6 Rh6 Ra6 Qf4 Q6a7 Qe4
3K1rRQ/NQQ4p/1q6/2b2pbb/n1Rp3P/Bb1k3n/3N2rP/B1Q1R2B w - - 0 1 legal: proof: f4 b5 d4 e5 fxe5 c5 a4 cxd4 axb5 Nc6 g3 Qh4 gxh4 Nb8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kg5 Ke4 c4 f5 b4 d5 c5 a5 c6 g6 e6 d3 b6 a4 b7 a3 c7 a2 e7 d2 e8Q+ Ne7 Kf6 g5 b5 g4 b6 g3 Ba3 g2 Nf3 g1B Nd4 Bh6 Bg2+ Ke3 Qc1 Bf4 Nb5 Ra4 Na7 Kd4 e4 d1B e5 Rg8 e6 Ra6 Nd2 Ng6 e7 Be6 c8Q Kd3 Q8c7 Bc5 Re1 Bh5 Bh1 Bf7 Rb1 a1Q+ Rb2 Qa2 Rc2 Qb3 Rc4 Bh6 Qed8 Nf4 e8R Rg2 Rg8 Nh3 Qf8 Qb4 Qg7 Qb3 Qh8 Qb5 Qd6 Qb2+ Ke7 Nd7 Kd8 Bg5+ Qe7 Qf6 b8B Qd4 b7 Rf6 Be5 Nb6 b8Q Na4 Qb6 Qb2 Qa6 Qb6+ Qc7 Be6 Bc3 d4 Ba1 Bd5 Qb7 Bdf7 Rb4 Bb3 Rc4 Rf8+
3nR3/R4pP1/BNnR1PB1/2pQ1q1N/5b2/4r2k/brQQbBbp/R3K3 w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Na6 a4 Be7 h4 gxh4 a5 Bf6 b6 Nb8 b5 Bg7 b7 Bf8 Bh6 Qf6 Bc1 Qb6 axb6 Bd6 Ra5 Bc5 Ra1 Bf8 g4 Ke7 f4 Ke6 e4 h5 f5+ Ke7 g5 d5 g6 c5 e6 Kf6 e7 a5 e8R a4 g7 d4 Qc2 d3 Nd2 Kg5 f6 Kg4 e5 a3 e6 a2 e7 h3 Ne2 h4 Nc4 h2 Ng3 h3 Be3 Ra3 Bf2 Rh6 Nh5 Nc6 b8R Be6 b7 Nd8 b6 Rh8 Rd1 a1Q Ra8 Qb1 b8Q Rc3 b7 d2+ Ke2 Bd5 Nb6 Ba2 Qd6 Rh6 Bg2 Re3+ Kf1 Rh7 b8Q Rh8 Rg1 h1B Ra7 h2 Be4+ Kh3 Bg6 Be4 Qb7 Bh1 Qb3 Qf5 Qc2 Be4 Ra1 d1B Qdd2 Be2+ Ke1 Bh1 Qbd5 Bg2 Ng3 Rh4 Nh5 Rb4 Rd1 Rb2 Ra1 Be4 Rg4 Bh1 Re4 Bg2 Re6 Nh6 Rd6 Ng4 Rc1 Ne5 Ra1 Nb7 Rea8 Nc6 e8B Be7 Bd7 Bf8 Re8 Nbd8 Bc8 Be7 Rdd7 Bd6 Ba6 Be5 Rd6 Bf4
qn1bQ3/k3pK2/2BQNn2/2p1rQ2/B7/1R1P1pN1/N1P2Rrb/1n1BBn2 w - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f4 dxe4 fxg5 Nh6 h4 Ba6 g4 Ng8 h5 Bc8 Na3 Bf5 Nb1 Bg6 hxg6 Qd5 Ne2 Qd4 Ng1 Qd8 Kf2 Kd7 Ke3 Kc8 Kf4 Kb7 Ke5 a5 b4 h5 d3 c5 b6 f5 Ke6 h4 b5 a4 g7 e3 g6 e2 g5 e1B Qf3+ Nc6 Rh2 f4 Be2 h3 Kf7 a3 Rf2 h2 Nc3 h1N Bd1 a2 Nge2 Qb8 Ng3 Bd2 Rb1 a1N Rb3 Ra3 Na2 Bb4 Bd2 Qa7 Be1 Ka8 b7+ Kb8 Qd5 f3 Qf5 Nf6 g8B Bh6 g7 Ba5 g6 Qa6 Bh7 Bc7 g8B Ra4 g7 Ka7 b8N Bhf4 Nd7 Re4 Nf8 Re5 Ne6 Bd8 Bg6 Rh2 b6+ Kb8 b7 Ka7 B8h7 Nb8 g8Q Rg2 Qe8 Qa5 Rc3 Nb3 Bg8 Nd2 Rb3 Nc6 Bh5 Nb1 b8Q+ Ka6 Qd6 Ka7 Bh7 Qa4 Qg5 Qa5 Be4 Nb8 Bc6 Qa6 Bg4 Qb7 Qf5 Qa8 Nf1 Bh2 Ng3 Bc7 Bh5 Bd8 Ba4 Nbd7 Bg6 Bg1 Qf4 Nb6 Be4 Bh2 Nh5 Ng3 Qf5 Nf1 Ng3 Nbd7 Bec6 Nb8
BRQ2b1k/2np1K2/1BP2R1N/2rQPrbn/3bq2B/3p1QN1/4p3/3NNb2 w - - 0 1 illegal: No proof kernel
1B5Q/b1p4B/1R1N1Nbk/1r1Qn3/1P2B3/p1P1nb1p/1qr1bK1R/1R2N1N1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 g4 Kf7 b4 Kg7 f4 h5 b6 a5 c3 d5 f6+ Kh6 g5+ Kg6 f5+ Kh7 b7 a4 f7 d4 f6 d3 e6 a3 e7 Bh6 e8N Qd4 f8Q Bf5 f7 Bg6 Nd2 Nf6 Rb1 Ng4 Nd6 Nc6 b8R Ra5 Bg2 Rb5 Be4 Nce5 Ndf3 d2+ Ke2 Qd5 Ne1 Qb3 Qe8 Kg7 f8N Qb2 Nd7 Kh7 Qb3 d1B+ Kf1 Kg7 Be3 Kh7 Ba7 Bf8 Nc4 Bc5 Nf6+ Kg7 Rb7 Bf2 Bb8 Ba7 Qc8 Rd8 Rh3 Rd2 Rb6 Rc2 Nd6 Be2+ Kg2 Ne3+ Kf2 Be8 g6 Kh6 g7 Bg6 Rg3 h3 g8B h4 Bh7 h2 Qh8 h1B Qd5 Bg2 Rh3 Bgf3 Rh2 h3
2R2R1Q/2pR1qb1/1nB1b1Qr/2p4P/2KB3r/N3N2N/pb1P3B/Rbk1n3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d6 a4 Nd7 axb5 Nb8 c4 Rh7 c5 dxc5 Nh3 Rh6 Ng1 Rh8 b4 Ke7 h4 Ke6 e4 f5 Ke2 a5 b6 g5 h6 g4 b5 f4 b7 g3 h7 g2 b6 a4 Nh3 g1B Na3 Ra6 Bb2 Bf2 Bg2 Qf6 Kd3 f3 Kc4 Qg6 Bd4 Qf6 Qb1 Nc6 b8R Nge7 b7 Nb4 h5 Qf7 Re1 Bg7 Bh1 Re8 h8B Nd3 Rf1 Bd7 Rd8 Ne1 b8R Nd5 Rbc8 Bg3 Bg1 f2 Bh2 Bh4 Qd3 Bhf6 Qg3 Rg8 Qg6 Rb6 Rf8 Rd6 Rg1 Rc6 Rg3 f1B+ Rd3 Be2 Bf3 Bd1 Bh1 Bc2 Rd4 Bb1 Bg2 Ke7 e6 Rd6 Rd3 Bb2 e5 Rb6 Nc2 a3 Ne3 a2 Bf3 Nc3 Bc6 Nd5 Rfd8 Re8 Rd4 Kf8 e7+ Kg8 Rf4 Be6 Rd7 Rd8 e8N Ra6 Qf6 Kh7 Qf5+ Kh6 Nd6 Re8 Nb5 Re7 Rf1 Ra4+ Kb3 Rh4 Na3 Re8 Qe4 Rg8 Kc4 Rf8 Ng1 Kg5 Rf4 Re8 Qc2 Re7 Nh3+ Kh6 Rd6 Bf6 Bd7 Qh7 Re4 Bg8 Nf2 Kg5 Bc6 Re6 Rd7 Rd6 e6 Bf7 Ng2 Kf5 e7 Bfc3 e8Q Rh6 Qd3 Be6 Nh3 Bd4 Re2+ Kg4 Qdg6+ Kf3 Re4 Bdc3 Rg4 Ke2 Rf4 Kd1 Ne3+ Kc1 Be5 Bd4 Qh8 Qg8 Rff8 Qf7 Bd6 Bg7+ Bdf4 Bg4 Be5 Be6+ Bd4 Nb6+
2n1R3/1PNp2kN/Bnpr1p2/BRKP3n/5r1b/NbQ4q/1Q1Q4/2B2n1N w - - 0 1 legal: proof: g4 e5 a4 b5 axb5 h5 gxh5 Be7 b6 Bf8 b7 Bd6 c4 Qe7 f4 exf4 b4 Qe4 c5 Qc6 b5 Qb6 cxb6 Bf8 Kf2 g5 h4 a5 d4 f3 Ke3 c6 d5 a4 Kd4 a3 e4 g4 h6 f2 h5 g3 e5 g2 h7 a2 h6 Bb4 e6 Kf8 e7+ Ke8 Ne2 g1N Na3 Bd6 Ng3 Ra5 Qd2 Nh3 Rb1 Na6 b8Q Nc5 b7 Nf4 b6 Na4 Ba6 f1N Rb5 Nh5 Rh2 Bb4 Nh1 a1Q+ Kc4 Qb2 Re2 Qb3+ Kd4 Qh3 Qh2 Nhg3 b8B Nh5 Bc7 Bd6 Re6 Bg3 Qc3 Bh4 Qhd2 Ngf6 Qcb2 Ne4 Re5 Rf8 h8Q Nd6 h7 Bb7 Qg7 Nc8 h8N Rg8 Qg3 Rg6 Qgc3 Rd6 Ng6 f6 Nf8 Kf7 e8N Kg8 Bd8 Kf7 Nc7 Kg7 Rb4 Rb5 Re8 Rc5 Nh7 Rb5 Rb3 Rb4+ Bc4 Ba6 b7 Nab6 Kc5 Bb5 Be2 Ba4 Ba6 Rd4 Rb5 Bb3 Na8 Nc4 Ba5 N4b6 Nc7 Rf4
3N1Q2/1p3rnn/1B1P1r2/q1rk4/Qpb4N/K6p/2Rb2rP/BBRQ2NQ w - - 0 1 legal: proof: d4 d5 c4 e5 dxe5 f5 cxd5 a6 g4 Qf6 gxf5 Qe7 b4 Qd8 b5 axb5 Nf3 Kf7 Kd2 h5 Kc2 g5 Kb3 c5 e4 h4 a4 h3 e6+ Ke7 f6+ Kd6 e7 c4+ Ka3 c3 e8Q g4 e5+ Kc5 f7 g3 e6 c2 a5 g2 a6 g1R d6 Ne7 a7 Rh7 Nc3 Rh4 Qd3 Rf4 Nh4 Qb6 Ra2 Rg3 Ne2 Rf5 f4 Nd5 e7 Rh5 f5 Qc6 f6 Bh6 f8N Qd7 f7 Nc6 Be3+ Nd4 Ne6+ Kc6 f8B c1R Qb1 Nf5 Bg7 Rg2 Ba1 Nf6 Bc5 Rb8 a8Q Ng7 Qa4 Rf5 Qh5 Nh7 e8Q Rf6 Qe7 Qe8 Bb6 Rc5 Qef7 Bd7 Qhg4 Rc8 Qf8 Rc7 Qc1 Qa8 Nd8+ Kd5 Rg1 Bf5 Rb2 Be4 Qf3 Rg4 Qh1 Rcf7 Bg2 Be3 Rf1 Qa7 Ng1 Bd2 Qc2 Qa8 Rc1 Qa5 Qd1 Bf3 Bf1 Rg2 Bd3 Be2 Bb1 Bc4 Rbc2 b4+
1RN5/P2r2nB/1Nb2p1p/b1r1nQBQ/1k1BpP2/2N5/r2Nrq2/3R1RK1 w - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 h4 g5 hxg5 Kd7 cxb5 Ke8 b4 axb4 a4 Kd7 g4 Kd6 d4 e5 f4 c5 Kf2 c4 b6 h6 g6 b3 g5 c3 b7 b2 g7 c2 a5 Bh3 g6 Na6 b8R Nb4 a6 Rh7 a7 Qe8 Qh5 Qc6 Be3 c1R Ne2 Nc2 Nd2 b1R Kg1 Qc5 Nc3 Ne7 g8N Qb5 g7 Qa6 Nf6 Nb4 g8N Rb2 Nd7 Qa2 Nb6 Nf5 Ne7 Bg2 Bf2 Rcc2 Bd3 Ng7 Rf1 Nc6 Bf5 Rc1 Bg6 Re1 Qf5 Re2 Nec8+ Kc7 Rd1 Bb4 Qh5 Ba5 d6+ Kd8 d7 Kc7 d5 f6 Bh4 Rc2 Bg5 Be4 Rh2 Bf3 Rf2 Bh1 Rff1 Be4 Ne7 Kd6 d8Q+ Kc5 d6 Kb4 d7 Bd5 Bf5 e4 Qc8 Ne5 d8B Bc6 Bg6 Rb2 Qf5 Rc2 Rb7 Rc8 Rb8 Rc7 Nec8 Rd7 Bc7 Rh8 Bh7 Rhd8 Qf3 Rd5 Q3g4 Rc5 Qh5 Rd7 Bd6 Qa1 Be7 Ra2 Bd6 Qb2 Bc7 Ng4 Be5 Qc2 Bd4 Ne5 Nb5 Qd3 Nc3 Qe3+ Rf2 Qf3 Rff1 Qf2+
1nB3b1/pq3R1B/2QKNP1Q/NQpn4/3bRP2/NpBrbr2/1b1N4/3k4 w - - 0 1 illegal: No proof kernel
3q2n1/1NRP3k/1B4bb/4r2n/3B1R1Q/K1p2q1p/Bn1p2bP/3RNRQN w - - 0 1 legal: proof: d4 d5 a4 a5 c4 e5 f4 b5 axb5 g5 dxe5 gxf4 Qc2 d4 Qd1 Ra6 Qb3 Rd6 Qd1 Rd5 cxd5 Bc5 Qc2 Ba3 Qd1 Bf8 Kd2 f5 Kc2 Kf7 Kb3 Kg6 e4 c5 g4 h5 e6 d3 b6 f3 b7 a4+ Ka3 c4+ b4 f4 g5 f2 e7 f3 e8N d2 e5 h4 e6 h3 e7 Bf5 b5 Rh4 d6 Bd3 b6 Qd7 Qe1 Nh6 Ne2 Ng8 Ng3 Rg4 Bb2 Bh6 Bd4 Qd8 d7 c3 Nd6 Be4 e8R Bf5 Rf8 Bg7 Bc4 f1B Ba2 B5d3 Rf4 Nc6 b8B f2 b7 Rh4 Bc7 Kh7 b8R Bh6 Nb7 Nb4 Bcb6 Rh5 Rc8 Bg6 Rc7 Bg2 Rf1 Nd3 Nh1 Nb2 Qe7+ Bf7 Rd1 f1N Qe1 Ng3 Qf2 Ne4 Qh4 Nef6 g6+ Kh8 g7+ Kh7 Kb4 Re5 Na3 Bg6 Nc2 a3 Rdf1 Nh5 Ne1 Qf6 Rd1 Qd8 Bb3 a2 Ka3 a1Q+ Ba2 Qb1 Rf7 Be3 R7f4 Qe4 R1f3 Ne7 Rf1 Qf3 g8Q+ Kh6 Qe6 Ng8 Qeg4 Kg7 Qgg3 Kh7 Qf2 Nd3 Qg1 Nb2 Rf8 Bg5 Rf4 Bh6
B1r2qR1/2pB2q1/n1p1qN2/5bnN/Q3Q1K1/1PQ2np1/RB4PB/2Nk1r2 w - - 0 1 illegal: No possible last move, all moves rejected
1b1B3N/BB2qnQ1/1KQ5/R1R1q1P1/2Qp4/B2qrp2/1nn1RPp1/2k2r1N w - - 0 1 illegal: No proof kernel
5RBR/3b2b1/q2KNN2/2B1r3/1Q2pNR1/pp1BPnrQ/1R1r1P2/1qk3b1 w - - 0 1 illegal: No proof kernel
1K1N1BR1/Bq1r3p/1r2p1R1/1Q1B2B1/3p2PN/b1qPQ1nn/r1k1N3/2q1Q3 w - - 0 1 illegal: No possible last move, all moves rejected
NB2knn1/pbRN3B/Qr5R/2b3n1/2pq2QP/p1PQ4/Bq2BK2/3q1N2 w - - 0 1 illegal: No possible last move, all moves rejected
1r4BR/P1QpNR1B/2n5/rpp1KQbb/1PN1R3/1kB1q1B1/3q3b/3q3N w - - 0 1 illegal: No proof kernel
K1nR2N1/pb1B1rNB/P1rkqp1B/Q1R4N/qP4Rr/NQ3pb1/1b6/8 w - - 0 1 illegal: No possible last move
1Kb4N/2rN1R2/1QB3p1/n1rr1NbQ/p2PR1PB/1q2q3/3p4/3kqRRB w - - 0 1 illegal: No proof kernel
3Q2rq/nBpRp3/1pn2Bq1/4PkBN/Br1P3b/q5QR/2nKQ1N1/7R w - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 g5 h3 f5 b3 Be6 b4 axb4 Bg2 Bf7 Bf1 Bh5 gxf5 g4 Na3 g3 Nb1 Bg4 hxg4 Ra7 Rh6 Ra6 Rh1 Ra8 d4 Kd7 a4 h5 f4 h4 e4 b6 f6 b3 g5 b2 a5 g2 e5 h3 f5 h2 g6 Qe8 d6 Ra6 g7 Qf7 Ne2 g1N Nbc3 b1Q Ne4 Rh4 Bg5 Rf4 Ra3 Qc1 Rh3 Qc6 Kd2 Qcc4 N4g3 Rg4 Nf4 Nh6 g8Q Qfe6 f7 Ne2 f6 Nf5 Ngh5 Qa4 Ng2 Nc3 Bb5+ Nc6 Qe2 Bg7 f8R Qa3 f7 Ne3 Ba4 Qg6 Rd8+ Ke6 f8B+ Kf5 d7 Bf6 Bg7 Nc2 Qb3 Ra8 a6 Nb5 a7 Rg3 Qg8 Rb3 Bh8 Rb8 a8B Nba7 Bb7 Rb4 Qb3 Rc8 Qg3 Ra8 Be3 Bg5 Bf6 Bh4 Beg5 Rc8 Rh8 Rf8 d8Q Rg8 Qb8 Rg7 Rd8 Rg8 Rd5 Rf8 Rd7 Rg8 Rd1 h1Q Ra1 Qb1 Qd8 Qba2 Rd1 Qaf7 Ra1 Qfg7 Rah1 Qh8
Q1Q5/KN1pN3/1bb1p1q1/PQ1R3R/1p1qP2N/nr1RBq2/2n3nR/kB6 w - - 0 1 illegal: No possible last move, all moves rejected
2r4k/3qBRRp/3P4/2rNbN1n/Qp1npn1q/N7/BR2PK1N/2QQ2r1 w - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 g6 Ra8 g5 Ke8 h3 Bg4 hxg4 Ra7 Qb3 Ra4 Qd1 Ra8 a4 e5 d4 c5 a5 f5 d6 b5 g7 Kf7 g6+ Kf6 g5+ Ke6 a6 f4 d5+ Kf5 d7 b3 d6 b4 a7 b2 Nf3 e4 Na3 b1Q Ra2 c4 Rb2 c3 Kf2 c2 Nh2 f3 Bh3+ Ke5 Be6 Qe7 d8Q Nf6 g8R Nc6 g7 Nd4 g6 Rc8 a8Q Qd7 Qa4 Rc5 Qc8 Nh5 Rf1 Kf6 Ba2 Be7 Bf4 c1N Bg3 Qd3 Qcc6 Qd2 Bh4+ Qg5 Qc8 Kf5 Qcc6 Bf6 Qc7 Qh6 Bg5 Be5 Be7 Ncb3 Qc8 Ne6 Qcc6 Nef4 Qc8 Rd5 Qcc1 Qg5 Rb8 Ke6 g8N Nd4 g7 Kf7 Nf6 Rc8 g8N Kg7 Rb7 Rdc5 Nh6 Kh8 Nd5 Qf6 Nf5 Qh4+ Ke3 f2 Rg1 f1R Rg7 Rg1 Ra7 Qg4 Kf2 Qc6 Bf8 Qg5 Raf7 Qd7 Be7 Qh4+
Nn1Nq2n/1pR1Q2N/q2pBP2/2QQ4/1R1PrB2/1NrB1k2/3b1qrp/3K4 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 b4 axb4 h4 d6 hxg5 Nh6 c5 Ng8 c6 Bd7 cxd7+ Kf7 g4 c5 a4 e5 d4 h5 f4 c4 a5 b3 f6 Ke6 a6 Kd5 g6 Ke4 a7 b2 g7 h4 f5 h3 f7 c3 g5 h2 f6 c2 g6 Ne7 g8Q Nec6 g7 Qb6 d8N Qa6 Nh3 Ne7 Bf4 c1R Ra4 Rc3 Qc2+ Kf3 Rb4 e4 Bd3 e3 Kd1 Rh4 Re1 Ng6 Nd2+ Kg4 Re2 Nh8 Nb3 b1Q+ Qc1 Qba1 Rc2 Q1a4 Ng5 Qe8 Nh7 Kf3 Qa3 Rg4 Qa5 Rg2 Qc5 Nc6 Rc1 Rc8 a8N Nb8 Rc2 Rc7 Rc1 Re7 Rc2 Re4 Rc1 Be7 f8Q e2+ Ke1 Qg6 Qgd5 Qe8 Qff7 Bf8 g8B Bh6 Qe7 Bg5 Be6 Bh6 Rc2 Bg5 Kd2 Bh6 Kc1 e1Q+ Kb2 Qf2 Kc1 Bg5 Kd1 Qa5 Ra2 Qab5 Ra6 Qa5 Rc6 Qa6 Rc7 Bh6 Bg3 Be3 Bf4 Bd2
1Q5N/Bqp1Q3/K1k5/2P2Q2/1Rn1p1r1/Pr1b1RN1/r3pNBb/3Rq1bQ w - - 0 1 legal: proof: g4 a5 e4 g5 b4 f5 bxa5 d5 h4 Na6 Be2 Nc5 Bf1 Ne6 gxf5 dxe4 Rh3 g4 Rh1 Ng5 hxg5 Qd3 Be2 Qd6 Bf1 Qd8 Ke2 Kd7 d4 h5 c4 e5 f4 b5 d5 h4 a6 b4 g6 g3 a3 h3 f6 h2 g7 g2 d6 b3 f7 e3 Kd3 e2 f5 b2 f6 Rh4 a7 Qe7 Be3 Rb8 a8Q Rb5 Qe4 Rf4 Nh3 g1B Ba7 Bb6 c5 Ba6 Kc4 Rh4 Bg2 Qe8 Nc3 b1R Nf2 R1b2 Rb1 Ne7 g8Q Ra2 Rb4 Qa8 Qg6 Nd5 Qf5+ Kc6 d7 Bg7 d8Q Ba5 f8R Rg4 f7 Bh8 Re1 h1Q Qb8 Qf1 Qa1 Qg1 Rc1 Qe1 Rd1 Bg7 Qc1 Bh6 Qe3 Bf4 Q4f3 Bh2+ Nce4 Bg1 Qeg5 Bh2 Qe7 Bg1 Qh3 Bh2 Qhh5 Bg1 Qh1 Nb6+ Kb3 Nc4 Ng3+ e4 Ka4 Ne3 Rfd8 Nc4 f8N Rb7 Ng6 Rb6 R8d3 Rb7 Rbb3 Bc3 Rb4 Be5 Rf3 Bf4 Nh8 Bd6 Nh5 Bdh2 Ng3 Rb6 Rb2 Rb3 Rbb1 Nd2 Ka5 Bd3 Rb2 Nc4+ Ka6 Rc3 Rb7 Rb3 Rb4 Qb7+
5n2/N3qR1Q/1R2pBBq/b1N3p1/2Q2Rr1/1BpPR3/q1b1Q1P1/1kn3nK w - - 0 1 legal: proof: e4 d5 h4 a5 a4 f5 c4 fxe4 cxd5 b5 axb5 g5 h5 Ra7 Qa4 Ra6 Qd1 Rg6 hxg6 Qd6 Nf3 Qd7 Ng1 Qd8 f4 Kd7 Kf2 Kd6 b4 c5 b6 h5 g7 a4 f5 Ke5 f6 Kd4 b7 h4 f7 h3 d6 h2 d7 c4 b5 a3 b6 a2 Na3 Rh7 Ne2+ Kd3 Nc3+ Kd4 Bd3 Rh3 Re1 h1Q Bb2 Nc6 b8Q Nf6 g8B Nh7 b7 Rg3 Qc7 Rg4 b8R Nb4 Re3 Qh6 Kg1 Qe8 Bc2 Nd3 Rb6 Nc1 d8Q+ Bd7 d3 e6 Bb3 Qe7 Qdc8 Ba4 Qe2 Bg7 Q8b7 Nf8 Bh7 Be5 Qcc8 Bc7 Bg6 Bd8 Rb1 a1Q Rb4 Ba5 Nab5+ Ke5 Na7 Kd4 Qbc7 Qa2 Qh2 Qb7 Kh1 Qe7 Bd1 Bc2 Na4+ Kd5 Bf6 c3 Rg3 e3 Rf4 Kd6 Rb6+ Kd5 Qf2 e2 Nc5 e1N Re3 Nf3 Qe2 Ng1 Nc6 Nd7 f8R Kd6 Rf7 Kd5 Qg8 Nf8 Qh7 Kd6 Qh4 Kd5 Nb3 Kd6 Na7+ Kd5 Nd2 Kc5 Ne4+ Kd5 Rf2 Bb1 Ref3 Rf4 Nd2 Kc5 Bb3 Bc2 Re3 Re4 Ra6 Kb4 Rb6+ Ka3 Rf5 Rg4 Ne4 Kb2 Nc5 Rg3 Rf2 Kb1 Rff3 Qg7 Qc4 Rg4 Rf4 Qh6+
1Bk4N/1bp2N1Q/4p3/Bb2NpR1/1bRqP3/2Nq1qn1/2K2PQr/1r2Q1B1 w - - 0 2 legal: proof: h4 b5 c4 d5 cxd5 g6 a4 Be6 axb5 Bh6 g3 Be3 h5 Bf4 Bg2 Bh6 Bf3 Bf8 h6 Bc8 g4 Nc6 g5 Bd7 Bh5 gxh5 g6 Bc8 g7 Nf6 g8N Nd4 Rh2 Nf5 Rh1 Ng7 hxg7 Bh3 Ra5 Bg4 Ra1 Bc8 d4 Kd7 Kd2 a5 b4 a4 e4 h4 d6 h5 d5 e6 b6 a3 b7 h3 b8Q a2 b5 h4 b6 h2 b7 h3 Nh6 Ne8 g8Q f5 Qh7+ Ng7 Nc3 Ra3 Kc2 Qe7 Bf4 Qd8 Rc1 a1Q Nf3 Ra6 Nf7 Ra3 Qe1 Ne8 Rg1 h1Q Bh2 Ra6 Rg5 Rb6 Bg1 h2 Qa8 Qa7 b8B Bb7 N3e5+ Kc8 Nd1 Qa1 Nc3 Rb1 Qa3 Rg8 Nh8 Qf3 Qa6 h1B Qaf1 Qa6 Qfh3 Qf6 Qg2 Ng7 d7+ Kd8 Rd1 Nh5 Rd4 Bb4 Rc4 Qg7 Qh6 Ng3 Qh7 Ke7 d8N Qd6 Nec6+ Kd7 Ne5+ Kc8 Ndf7 Qd7 d6 Re8 Qgh3 Bg2 Qh2 Bf1 Qg2 Ba6 Nd3 Qd4 Nde5 Qb5 d7+ Kb7 d8B Kc8 Qg7 Bb7 Bf6 Qa6 Qh7 Qad6 Rc6 Bb5 Rc4 Rg8 Be7 Rg6 Bf6 Rh6 Be7 Q6d5 Bc5 Qd8 Bb6 Rh2 Ba5 Q8d5 Rc6 Q5c4 Rc5 Qf1 Rc4 Q1d3+
B5NK/1R1rQ3/2kppN2/Bpbbb1RN/2n2Q1q/4P1q1/4R1P1/1rr1N2Q w - - 0 1 illegal: No proof kernel
1Q2N2R/bRbN2N1/1p2Q3/1Qb5/Kn2rp2/3Qp1Pq/B1bBP3/b2r1B1k w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 h4 Na3 h3 Nb1 hxg2 Qa4+ Nc6 Qc2 g5 Qd1 g4 Ba3 g3 Bc1 Nd4 Qc2 Nf5 Nf3 g1B Qb3 g2 Qd1 Ng3 fxg3 Bh6 Ng5 Bg7 Nf3 Bf8 a4 Kd7 d4 Kd6 Kd2 c5 Kc3 f5 Kb3 e5 h4 e4 h5 e3 a6 f4 h6 Bg7 a5 c4+ Ka4 c3 h7 c2 a7 Ne7 a6 Re8 h8Q Bf5 Ne5 Bf2 Na3 g1B Qh5 Qc8 Rb1 Be1 Qd3 Bgf2 Nd7 Ba5 Bd2 Nc6 Nb5+ Ke7 d6+ Ke6 Qg5 c1B Rh8 Ba3 Rb2 Rb8 a8B Be1 a7 Bb6 Qg4 Nb4 d5+ Kf7 Nd4 Re4 Qb5 Bc7 Ne6 Bd4 Qh3 Kg6 Ng7 Kg5 Rb3 Bh7 Qe6 Bab2 Ne8 Ba1 Nc5 Kh5 Qa6 Na2 Qf5+ Kh6 d7+ Re6 d6 Re5 Bc1 Bb4 d8N Rd5 Qf6+ Kh5 d7 Kg4 Nde6 Bb1 d8Q Re5 Qb6 Re4 N6g7 Qf5 Qd5 Rd8 Qfe6 Rd6 Qbc6 Ba3 Nd7 Bdb6+ Qdc4 Rd1 Bd2 Bac5 Rb5 Nb4 Qd4 Bb8 Qd3 B6c7 Ra5 b6 Qcb5 Bc3 Bd5 Ba1 Qec6 Qh7 a8Q Qh5 Ra7 Qh2 Rb7 Ba7 Qc8 Qg2 Rg8 Kh3 Ba2 Kh2 Qe6 Qh3 Qb8 Kh1 Rh8 Bc2+
B6r/k2B4/B2rQ1N1/Nppr1R2/bK1NQn2/rQ5q/1PP1p3/1Q3Rrn w - - 0 2 legal: proof: d4 e5 dxe5 b5 a4 h5 g4 Nh6 gxh5 Bc5 a5 Ng8 e4 f6 e6 Rh7 e5 Bb6 axb6 Rh8 e7 Kf7 Be3 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Kd2 Kb7 Kc3 d5 e8B a5 f4 g5 h4 e4 e7 e3 h6 g4 h5 e2 h7 a4 h6 d4+ Kb4 g3 f5 g2 f6 d3 f7 d2 f8Q a3 Qf7 a2 Nf3 g1R Qe6 Rg7 Bd7 Rg6 e8B Rf6 Nd4 Ra6 Bh3 Ra3 Rf1 Ne7 Rf5 Ng6 Qc1 d1R Nd2 Nf4 Qb1 Ka6 b7+ Ka7 Nc4 Rdd3 Bc6 Nd7 Na5 Nc5 Bed7 Ne4 Bg4 Nf2 b8Q+ Ka6 Ba8+ c6 Qc7 Nh1 Qce5 Ka7 Qe4 Qe8 Qb3 Rd6 Bh3 Qe6 Bg4 Rg8 h8Q Rd8 Qf6 Rh8 h7 Rd2 Nf3 R2d5 Qfe5 Qh6 Qe6 Qh3 Nd4 Ng6 Qg1 Nf4 Rd1 a1R Rf1 Rd8 h8N Re8 Ng6 Rh8 Qge3 Re1 Qc1 Rd1 Rf3 Re1 Qb1 Rg1 Be8 Bd7 Rf1 Bc8 Q6e5 Be6 Bd7 Rc5 Bc8 Bc4 Qe6 Rcd5 Qbe3 Ba2 Ba6 Bb3 Qc3 Ba4 Qb3 Qe3 Bh3 Qf3 Bg4 Qh3 Qe7+ Kb8 Rf6 Qh7 Bd7 Qh3 Q7e6 Ka7 Rf5 c5+
4rR2/B1Q1bq2/1R1N1NN1/2BQK1rP/2r1np1p/3p1P2/kB2r1R1/2nn1B2 w - - 0 1 illegal: No proof kernel
2n1b1R1/4p3/1k2PpNQ/1B1b2Qn/5q1p/1rRnbKB1/BPN3nR/3QR3 w - - 0 1 illegal: No possible last move
1rb5/1p1BbR2/6QP/1N6/b1Bn4/qppNbNrB/rP2RQRK/2Bk4 w - - 0 1 illegal: No proof kernel
1R2Nn2/1QQQ3q/3B2k1/r1Bb2r1/nBBr1p2/np1Kp2P/4RP1r/R5N1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 d4 h5 g4 e6 gxh5 Qd7 e4 Bd6 e5 Qe7 exd6 Qd8 Ke2 g5 a4 c5 a5 f5 h6 Kf7 h7 b5 d7 g4 a6 g3 a7 g2 d6 b3 d5 b4 Ra6 e5 Ra2 e4 Be3 f4 Qc2 b2 Nd2 b1N Nc4 Qe7 d8B b3 d7 Na3 d6 Kg6 Ba5 Bb7 d8R Nf6 d7 Bd5 Nd6 c4 Bc5 c3 Bab4 Na6 Ne8 Qg7 Qc1 e3 Kd3 c2 Rb8 Qf7 d8B Nd7 Bc7 Nf8 B7d6 Qb7 Qd1 c1R Re2 Rc4 Qc2 Re4 h3 Rg8 h8Q Qh7 Qd4 Rg7 Nf3 g1R Qcc4 Rg2 Ng1 Rh2 Qcc3 Rg8 Qg7+ Kh5 Qd7 Rg5 Qcg7 Nc2 Qc7 Na3 Qgd7 Kg6 Rd8 Rb8 a8Q Rb5 Rb8 Ra5 Qcc6 Nc7 Qab7 Ncb5 Qcc7 Nc3 Bg2 Re6 Bf3 Na4 Bg4 Re4 Be6 Bc6 Bc4 Bd5 Nf3 Rf5 Ra1 Rg5 Ng1 Rd4+
N1RQ1B2/P5Bn/3pp3/3pr2K/rbQ1RNrb/3P1Q2/3kb1q1/NB1b3N w - - 0 1 illegal: No proof kernel
2NBk3/b2p3R/BN1n1RrP/r1pB3p/2rP3Q/2R3q1/rQ1KbNb1/7R w - - 0 1 illegal: No proof kernel
1R2N3/p1rnn1q1/n1nQNBQ1/1rR1p1p1/PQBr1Q2/5P2/N3b3/3kB1K1 w - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 d5 e4 dxe4 b4 g6 bxc5 Kd7 h5 Bg7 h6 Ke8 hxg7 Qa5 Nf3 Qb6 Ng1 Qd8 a4 Kd7 d4 Kc6 c4 h5 f3 e5 Kf2 b5 f6 g5 f7 h4 f8Q b4 Qf4 h3 Bd2 h2 Nc3 b3 Na2 b2 Nh3 b1N Be1 Na3 Rc1 Ne7 g8Q Nc2 Qg6+ Be6 Qdd2 Rh4 Qb4 e3+ Kg2 e2 d5+ Kd7 d6 Kc6 d7 Qh8 d8B Qg7 Rg1 Nd4 Rc2 h1R Rc3 Ng8 Bf6 Nd7 Kf2 Bf5 Rg2 Rh2 Kg1 Rb8 Rc1 Rb5 Rf2 Kb7 c6+ Kb6 c7 Ne7 c8Q Bd3 Qf8 Ndc6 c5+ Ka6 Qb8 Rh7 Qd6 Rh4 Bc3 e1N Rb2 Nc2 Be1 Rd2 Rb3 Be2 Rbb1 Rd4 Rb2 Bd1 Bc4 Be2 Rb3 Rh8 Rb2 Rc8 Rbb1 Rc7 Rb2 Nb6 Rb3 Nb8 c6 N6d7 Rbb1 Na1 Rc2 Nb3 Rc3 Na5 Rcc1 Rb7 c7+ Nac6 c8N Rc7 Qff5 Nc5 Nf4 Nbd7 Rc3 Rd5 Ne6 Rd4 Qa3 Ka5 Qf4 Na6 Rb2 Rbd5 Rb8 Rb5 Qd5 Bf1 Nd6 Be2 Ne8 Nc8 Qf8 N8e7 Nc1 Kb4 Qd6+ Ndc5 Rc2+ Ka3 Rc3+ Kb2 Na2 Nd7 Bd5 Bf1 Rc5 Bd3 Bc4 Kc2 Rd5 Kd1 Qb4 Be2 Rc5 Nf5 Qd6 Nfe7
N1k5/2p2Q1n/pp2R1n1/1B2rb1P/3rB1KR/P2r4/rQ1QRBBq/1N1n4 w - - 0 1 illegal: No possible last move
QQ1b1qkq/2R4N/2q1b1p1/2N2R1p/r2Bp2P/2rnK1Q1/1P1NqR2/4N2B w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 f4 fxe4 g4 Bd7 f5 Be6 g5 Nd7 Ra4 Ndf6 gxf6 Bd7 Ra1 Bc8 Ke2 Kf7 d4 c5 h4 e5 d6 h5 b6 a5 d7 e3 b7 c4 b8Q a4 d5 c3 d6 c2 Nf3 e4 Bg2 a3 Ne1 g6 Nd2 a2 Rh2 Qb6 d8Q Nh6 d7 Bd6 Bh1 Qc5 Rf2 Ra4 Qa5 Rd8 Qaa8 Be7 Rb1 Rf8 d8N+ Kg8 Ne6 a1Q Qg3 Qc3 Nc5 Bd8 Qgb8 Qaa3 f7+ Kh7 f6 Be6 Ra1 Ng4 Ra2 Rg8 f8R Ne5 f7 Nd3 Qg3 Qab4 Ra3 Kg7 Rb3 Qa3 Rb7 Kh7 Rc7 Qh8 Re8 Rg7 f8N+ Kg8 Rf5 Rf7 Nh7+ Rf8 Rf2 Qb4 Ree7 Rf3 Rf7 Qb8 Rf5 Qb4 Nf1 Qb8 Bd2 c1Q Qb3 Qc4 Bc1 Qcb5 Bd2 Qc6 Bc3 Qb4 Nd2 Qa3 Kf1 e2+ Kg1 Re3 Qbb8 Rf3 Bd4 Qb4 Nc2 e1Q+ Kg2 Qe2 Ne1 Ne5 Kg1 Rc3 Kg2 Nd3 Kg1 Qd1 Kf1 Qc2 Ke2 Qa3 Ke3 Qb4 Na6 Qf8 Nc5 Qd1 Rb7 Qg4 Rc7 Qe2+
BK3B2/r1n3N1/r1P1p3/NR2QpR1/3qpPn1/1bN1q1Q1/5NBQ/n1k4n w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 gxh5 c5 a3 b5 Ke2 e6 Ke1 Be7 Bb2 Bf6 Bc1 Bc3 bxc5 b4 Be2 b3 Bf1 Bb4 axb4 Kf8 Bg2 Ke7 Bf1 Ke8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 c4+ Kd4 h4 a5 c6 f5 h6 g6 h5 a4 h7 a3 c5 b2 h6 a2 b5 Ra6 c7 Rd6 b6 Qe8 b7 Qe7 c6 Qd8 Qh5 Qe7 Nc3 b1Q Qh2 Qg7 Nh3 Qb4 Ba3 Nf6 Rg1 Ng4 Bg2 Kd3 Rab1 Kc2 d4 a1N d5 Qbd4 Rb5 Rg8 h8N Rf8 h7 Qd1 Nf7 Rfd8 h8Q R6d7 d6 Qgd4 Qe5 Na6 b8Q Re7 d7 Bb7 c8B Qe1 Nd6 Nc7 Ne8 Ba6 Ng7 Rf8 Bc5 Kc1 d8N Rg8 Nb7 g5+ Kg3 Rh8 Na5 Rf7 Bb7 Re7 Qa7 Ra8 Qb8 Ra7 Qg8 Re8 Bf8 Rea8 Rc5 Bf1 Rb5 Qee3+ f3 Ra6 Nf2 R8a7 Ba8 Qed2 Ncd1 Bc4 Nc3+ Qe1 Qgh7 Bb3 Q7h3 Nh6 Qh4 g4 Kf4 g3 Qef6 Qe3+ Ke5 Ng4+ Kd6 Qb6 f4 Qe3 Ncd1 Q1c3 Qe5 Qb4+ Kd7 Qbc5 Kc8 Qcd4 Bh1 g2 Kb8 Qdd2 Q4g3 Qdd4 Rf1 g1N Bg2 Ne2 Rg1 Kc2 Nc3 Kb2 Qgh4 Ng3 Q4h3 Nh1 Q3g3 Kc2 Bf3 Qdd3 Qgh4 Nh6 Rg5 Ng4 Q4g3 Kc1 Bg2 Qdd4
B1B2Q1K/2n3Bb/QR5p/2q1nr2/1p1bN1PN/1P1Q2Rp/nk1N2B1/n3q3 w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 fxe5 b5 a4 a5 h4 gxh4 Qc2 b4 Qd1 Ra7 Kf2 Rb7 Ke1 Rb5 axb5 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Kd7 Kf3 f5 Kf4 c5 d4 h6 e4 c4 g4 c3 e6+ Kd6 b6 a4 e5+ Ke7 b3 a3 b7 h3 d6+ Ke8 d5 a2 e7 Kf7 e8B+ Kg7 e6 Kf6 e7 c2 d7 Qb6 d8Q Qe6 d6 Rh7 d7 Qf7 Nf3 Qd5 Rg1 Qc6 Qd6+ Kg7 Ke5 f4 Bb2 c1N Rg3 Nf6 Nbd2 Na6 b8Q Nc7 Nh4 f3 Bg2 f2 Qb7 f1Q Qd3 Rh8 Qba6 Qe1+ Kf5 Qd6 Bf7 Rh7 e8B Qc5+ Bfd5 Bd6 Bf7 Be5 Bfe6 Bd4 Qe8 Rh8 d8N Nd7 Nf7 Ne5 Ba8 Rf8 Qd8 Bb7 Qb8 Bf3 Bc8 Bd1 Bc3 Bc2 Bb2 Rd8 Bc3 Rd5 Ng5 Bb1 Nge4 Bc2 Rb1 a1N Rb2 Kf7 Ra2 Bb1 Ra5 Na2 Rb5 Ke7 Bcb7 Kd7 Kf6 Bc2 Kg7 Bb1 Nd6 Ke6 Rb6 Bc2 Kh8 Kf6 Qe3 Bh7 Qe8 Nd3 Qe2 Rf5 Bc8 Ne5 Q2b5 Kg5 N6e4+ Kf4 Ndf3 Ke3 Qf8 Qc4 Qd7 Kd3 Nfd2+ Kc2 Qdb5 Bf2 Bd4 Qc5 Qd3+ Kc1 Be3 Bg1 Bg5 Bf2 Bf6 Bd4 Bg7 Kb2
2RrqK2/7R/q6p/1P2Q1Bp/5p2/bkBrN1NP/1bR1NbQ1/2nb1B1B w - - 0 1 illegal: No possible last move
1n1Q2q1/4r3/2b2krN/5p2/KRPr1b2/R1Q2P1p/3p1QNr/1BqRQ1BB w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Nd7 Ra1 Ndf6 d3 Nd5 exd5 c4 Ra2 cxd3 Ra5 Be6 Ra1 Bc8 Kd2 f5 g4 Kf7 c4 h5 b4 a5 b6 e5 b7 a4 b8R a3 g6+ Kg7 d6 a2 g5 e4 b5 h4 d7 h3 b6 Bd6 b7 Qb6 d8Q Ra3 Ne2 Qc6 Nf4 Qb5 Nc3 Qe8 Qe1 Ra7 Nd1 Ra8 Ng2 Qd7 Nde3 Qe6 Ng4 Qf6 Nh6 e3+ Kd1 d2 Kc2 d1R Kb3 e2 Be3 d3 f3 d2 Bg1 Be6 Qa5 Bd7 Qc3 Ra5 Qf2 Rb5+ Ka4 Ne7 Qe1 Rd8 Qf2 Kf8 g7+ Ke8 g8Q+ Qf8 g6 e1R g7 Bf4 Qe6 Bc6 g8B Rb6+ Ka5 Qf7 Qe4 Qg6 Bd5 Qg8 Qee2 Kd7 Be4 Ke6 Qee3 Rd4 Bb1+ Kf6 Qee2 Be4 Ka4 Nc6 Qee3 Re2 Qe1 Bd5 Q3f2 Re4 Rd8 Re3 b8Q Re7 Qc7 Rc1 Rb8 Rd1 Rb7 Nb8 Qd8 Rc6 Qee3 Re1 Rb4 Re2 Qe1 Kg5 Q3f2 Rg6 Ne3 Kf6 Bg2 Rg5 Rh2 Rg7 Bh1 Rg6 Ng2 Bc6+ Kb3 Qe6 Qec1 Qd7 Qfe3 Qb7 Bc2 Bd6 Bf2 Nd7 Nf4 Bd5 Rg2 Bg8 Ka4 Qd5 Rg1 Nb8 Re1 Qf7 Bg1 Rh2 Ng2 Bf4 Qf2 Qg7 Qd1 Bd5 Qde2 Ba8 Red1 Qg8 Qee1 Be4 Rab1 Ba8 R1b3 a1Q+ Ra3 Qc1 Bb1 Bc6+
nr1kbQR1/1r1B1rPn/R1Q1pq2/4N2B/3BP3/qR1K4/3p1pN1/1QrB4 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 e6 g4 Bh6 h4 Ke7 g6 Na6 g7 Rb8 g5 Ke8 g6 Bg5 hxg5 Ra8 Bd2 Nb8 Be3 Na6 Bc1 Nb8 Kd2 h5 e4 d5 b4 f5 c4 a5 c5 f4 b6 d3 b5 a4 b7 d4 c6 f3 b6 h4 c7 h3 Be2 h2 Na3 f2 Nf3 Qf6 Ne5 Rh4 Nc2 a3 Ne3 a2 Bb2 Qf3 Qc1 Nf6 g8B Nh7 g7 Ke7 g6 Bd7 c8B Qf6 Bd1 Kd8 Bf7 Na6 g8R+ Be8 b8Q Nc7 b7 Rf4 g7 Ra7 Qb1 Na8 Ng2 Rf5 Rf1 h1R Bfh5 Rf4 Qc1 Rg1 Rb1 a1Q Qc6 Qa3 Ba1 Rh1 Rb6 Rhh4 Ra6 Rf5 Re1 Rhf4 Re3 Rg5 Nd7 Rb5 Qbd6 Rb4 b8Q Rab7 Qf8 Rb3 Ne5 Rf3 Qa7 Rb8 Qac5 R3b7 Qb4 Rf5 Bd7 Rf4 Bb2 Rf5 Kc1 d2+ Kc2 Rf3 Rb3 d3+ Kc3 Rf4 Kc4 Rf3 Bd4 Rf4 Bc2 d1R Qe1 d2 Kd3 Ra1 Qb1 Rf5 Bcd1 Rf4 Qb2 Rc1 Qbc2 Qh4 Qb2 Rf7 Qb1 Qf6
2B2Q2/B2QN2k/rr3prb/6R1/1pq1b1BQ/4KR1r/1PNRp2P/R5nq w - - 0 1 illegal: No proof kernel
Kbq1Bn2/6p1/1k2b1Np/3PR1NB/Qbn3Q1/4r1QP/b1pq1B1R/3NQ3 w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 a5 cxd5 b5 axb5 Ra6 Ra2 Rf6 Ra3 exf4 Ra1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 Kd7 d4 c5 e4 Kc7 b4 c4 e5 h6 f6 c3 b6+ Kb7 b5 c2 e6 a4 d6 a3 h3 a2 d5 Ne7 f7 Nbc6 d7 Ng6 e7 Na7 e8B Qe7 d8Q Ne5 Nc3 Bf5 Qe1 Nc8 Nd1 Qg5 Qd7+ Ka8 b7+ Ka7 Be2 Be4 Be3+ Bc5 f8N Ne7 Ng6 Nc4 Qg4 Bf5 Rh2 Be6 b6+ Ka6 b8Q Bb4 Rb1 a1B b7 Be5 Qd8 Bc7 Qd7 Bb8 Bd4 Qf5 Rb3 Rg8 Re3 Qd3 Re5 Qd2 Bc3 Ka5 Qa4+ Kb6 Bd4+ Bc5 Kf1 f2 Nf3 Rh8 Kg2 f1B+ Kf2 Rg8 Ng5 f3 Kg3 f2 Kf3 Rf8+ Ke4 Rf3 Be3 Rg3 Bf3 Be2 Bd4 f1Q Bf2 Ne3 Kf4 Bb4 Ke4 Bc4 Be2 Qc1 Kd4 Ba2 Bf3 Qa6 Be2 Ba7 b8Q+ Qb7 Bf3 Nc4 Qd6+ Qc6 Be2 Bb8 Bf3 Ba5 Qda3 Qc8 Qae3 Kc7 Kc5 Bb4+ Kb5 Qd2 Qef4 Qd7+ Ka6 Qd8 Be2 Re3 Qgg3 Qd7 Bh5 Qd8 Nf8 Ng6 Qfg4 Kd6 Kb7 Kc5 Ka8 Qc8 Bc6 Kb6 Be8 Bd7 Nfe6 Nf8 Nf4 Bf5 Ng6 Be6
BRqq4/1Rp1pn2/3N1k2/1K2b2p/2P1QPb1/2QB2N1/1qNQ1r2/Bq4rB w - - 0 1 illegal: No possible last move, all moves rejected
4RQK1/3k1pnb/p3qqnB/1R3N1P/B2Npr1b/NnR2P2/3Q2Nn/2B5 w - - 0 1 illegal: No possible last move
4q1N1/pnNR3p/R1pq3R/QBr1BPrK/2r5/1NQ5/P1N1r1b1/1k1n2B1 w - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 f5 gxf5 bxc4 h4 g4 Bg5 Be7 Bc1 Bg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 b4 Ke7 e4 d5 Ke2 d4 f4 c3 b5 g3 Kf3 g2 Kg4 c2 b6 d3 e6 Kd6 e5+ Kd5 f6 Kd4 g6 d2 b7 Bd7 g7 Bb5 f5 Nh6+ Kh5 Be2+ Nf3+ Kd3 g8N g1R e7 Rg4 e8N Rb4 e6 Na6 b8B Ra4 e7 Qc8 f7 Rc4 f8R Ng4 Rf6 Nf2 Qe1 d1Q Be3 c1R Nd2 Kc2 Nb3 Nc5 Qa5 Nb7 Ra6 c6 Be5 Qd6 Nc7 Nd1 e8Q Qcd7 Qf7 Re8 Qg7 Re7 Bg1 Qe8+ Qf7 Bd3 Nfd4+ Kb2 Rh3 Be4 Qg6 R1c3 Nc2 Bg2 Be2 Rc5 Bb5 Rg7 Qf7 Rg6 Qg7 Rc4 Rd3 Rc5 Rd4 R3c4 Rc1 Ne3 Re1 Nd1 Ree4 Kb1 Rh4 Qde6 Rd7 Qd6 Ne7 Rf8 Ng8 Rf7 Beh2 Re7 Qgc3 Re2 Be5 Rh6+ Kg5 Rf6 Rh6 Rg6+ Kh5 Rg5+
r2Q4/B2Nn1r1/PQ2b1Q1/2Bp2b1/RRnP4/1N2k2b/3pp1B1/1bNb1KN1 w - - 0 1 illegal: No possible last move, all moves rejected
1b4k1/1B1r1r2/1K3Q1R/1R1P1p1n/p2R1P2/1QN5/b2BNn1p/1QRr1bbN w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 c6 e4 Ba6 h4 gxh4 d4 Qb6 d6 Kd7 e5 Ke6 d7 Qc7 d5+ Kf5 Ke2 Bc8 Ke1 Qd6 exd6 Kf6 Ke2 Kg7 Ke3 f5 Kd4 h5 Kc5 e5 d8N a5 f4 h3 b4 a4 g4 h4 b6 e4 b7 e3 b5 e2 b6 e1B g5 Nh6 g6 Rh7 Nf7 Ra7 Ng5 Ng4 Ra2 h2 Rd2 Bf2+ Rd4 Nd7+ Kb4 c5+ Kb5 c4 b8R c3 b7 c2 Bd2 c1R N5h3 Ndf6 d7 Bd6 d8R Bc7 Rd6 Nh5 Nc3 Rb1+ Kc6 Ra8 Ba6 Ra7 Nge2 Rc1 Rf1 h1B Qc2 Bg2 Qb1 Bg1 Nf2 h3 Nh1 Kf8 g7+ Kf7 Re6 h2 Rh6 Nf2 Rd1 Bf1 g8Q+ Ke7 Qg6 Kf8 Qf6+ Rf7 Ra8 Kg8 b8Q Be5 Q8b2 Bd6 Rb8 Rad7 Rb3 Bb7+ Kb6 Bb8 Qa3 Bc6 Bb7 Bb5 Qaa2 Bd3 Rb5 Bc4 Qac2 Ba2 Qcb3 Rc2 Be3 Rd2 Rc1 Rd1 Bd2 Bd6 Be1 Be5 Bd2 Bb8
b3N3/RBr1Q1pr/NQ3B2/3BqnN1/q1R1p1qq/8/3pP1PQ/k2BqK2 w - - 0 1 illegal: No proof kernel forced: bxLB
5B2/2QNQ3/1pKnq1R1/n1N2B1Q/1Rpp3b/N1Pq3B/nn1PB2k/4r1q1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 e4 Ra5 exf5 Kf7 f6 Ke6 f5+ Kd5 f7 Ra8 f6 Kc6 h3 g5 Bc4 b6 Bd3 Ra5 Bf1 Rf5 Be2 Ba6 Bf1 Be2 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Kd6 Nf3 Kc5 Ng1 Kc6 Ke2 Kd5 Ke3 Ke5 a4 c5 c3 h5 g5 d5 g6 g2 a5 b3 a6 b2 a7 h4 a8B h3 g7 h2 Na3 b1Q Be2 c4 Nh3 g1Q+ Nf2 Nh6 g8B Qc8 Bh7 d4+ Kf3 e6 Ne4 Be7 f8N Nf7 Nc5 Nd6 f7 Nc6 f6 Na5 Bf5 Rh4 Ra2 Re4 Rb2 Qc6 Rb4 Qc8 Bf1 Re1 Bae4 Qc2 Bed3 Qd7 Bde2 Qe8 Bg2 Qd3+ Kg4 Qc8 Kg5 Qe8 Kg6 Kf4 Nfd7 Kg3 Bh3 Qc8 f8Q e5 f7 e4 Qd8 e3 f8Q Bh4 Qfe7 Qc6 Qc7 Qce4 Bh5 e2 Kg7 Qe6 Kf8 Rf1 B5g4 e1N Be2 Nc2 Bb2 Re1 Bc1 Qg2 Rg1 h1N Bb2 Kh2 Bc1 Qf1 Rg6 Nf2 Bb2 Qg3 Bc1 Nd3 Bb2 Nb5 Ke8 Qh1 Bc1 Nb2 Kd8 Qg1 Kc8 Nb3 Kb7 Nd6+ Kc6 Qd3 Bef1 Ne3 Qh5 Nd5 Be2 Nf4 Bf3 Ne2 Bf3g4 Na4 Bb2 Nec1 Be2 Na2 Ne4 Qb1 Qeh7 Qd3 Nb1 Qgg3 Rb5 Qf4 Ba3 Qf2 Bb4 Qfe3 Na3 Nb2 Bc5 Qg1 Rb4 Qe5 Qg7 Ne8 Bf8 Nd6 Qe7 Qe6 Nec5 Na5+
n3B1Q1/4n1N1/B4PP1/p3Rb2/3r2rp/B1qN1Npk/NbK2p2/QnR2R2 w - - 0 1 illegal: No proof kernel
QB1R2qn/4Q3/2BB1p2/1p2Rn1P/pN3Nk1/1Q1Rrr2/PRb1n2p/2Kb4 w - - 0 1 illegal: No proof kernel
2nQR3/k3B2p/r3N3/1p1RPp2/BK1Nb3/2pPQ1n1/1b1B2qn/1N1N1r1R w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 e4 Kd7 g4 f5 a4 c5 g6 Kc7 g7 Kb6 g5 b3 a5+ Ka7 e6 b2 g6 c4 d6 b6 a6 Qf6 d7 Qe7 d8B Qd6 e7 Nd7 e8R Ndf6 e5 Qb8 Qf3 Nd5 Ne2 Bc5 Be7 Nh6 g8N Nf7 g7 Nh6 Nec3 Bb4 Qe3 Ba3 Nd1 Bb7 d3 Ng4 Kd2 Qc7 Bg2 Nh2 Kc2 c3 Kb3 Qc6 Bd2 Qg6 Bf3 Qg2 Ka4 Nc7 Bc6 Nb5 Kb3 Nd6 Ba4 Nc8 Ra2 Bc6 Ra1 Kb8 a7+ Kb7 Ra2 Be4 Kc4 Rb8 a8N Ka7 Nc7 Rb7 Ne6 Rb8 Nh6 Rg8 Nd4 Ra8 Nf7 b5+ Kb3 Rb8 Rd8 Rb6 Ng5 Ra6 Rd5 Bd6 Na3 b1N Nge6 Bc5 Bh4 Be7 Ra1 Bg5 Kb4 Bh6 Be7 Bf4 Be1 Nd2 Nb1 Ndf1 Bd2 Ng3 Ra2 Rf8 g8Q Bg5 Qg7 Rg8 Qh8 Bh6 Ra3 Rg4 Qd8 Rf4 Ra2 Rf1 Bc1 Ne2 Qc7+ Ka8 Qf2 Rc6 Bc2+ Na7 Ra1 Bd2 Qe3 Ng3 Ra6 Rd6 Ba4 Rc6 Qd6 Kb7 Rb6+ Ka8 Rb7 Ra6 Rd7 Nc8 Rd8 Ka7 Re8 Nh5 Qd8 Ng3 Qe2 Be1 Be3 Bd2 Qf3 Bc1 Bd2 Bb2 Qe2 Nd6 Qe3 Nc8
1n2RBR1/4KP2/3NBNQR/1Q1br1b1/1r1N4/pBp3r1/p2P3p/2nN2kq w - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Bd7 hxg5 Bc8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 a5 g4 h5 f4 c6 b4+ Kb6 b5 Kc5 g6 e6 b6 h4 f6 a3 b7 a2 g5 h3 d6 a4 g7 Qe8 f5 Be7 f7 Qd7 f8N Nf6 g8B Qc7 g6 Rh4 g7 Ne4 f6 Ng3 Nh7 Ne2 Nc3 Kc4 Ba3 Kd3 Nf3 c5 Nd4 Qc6 d7 c4 d8N h2 Bh3 Bd7 Qg1 Nc1 Nd1 c3 Nf7 Qf3 Nd6 Bc6 Rb1 Bd5 Rb6 Ra7 Bc5 a3 Qg2 Rg4 Re1 Ra4 Bf7 Qf1 g8R Rb4 Re4 Rg7 Qg6 Qh1 Bf5 Na6 b8Q Bd8 Kf4 e5+ Kg5 Be7 Re1+ e4 B5e6 Bd8 Kf5 e3 Rc6 e2 Qb5+ Bc4 Nc8 Nb8 Bf8 Be7 Nd6 Bd8 Be8 Be7 f7 Bh4 Nf6 Bg5 Rg1 e1R Rg4 Ne2 Re4 Nc1 B8d7 Re3 Bd5 Rg3 Re8 Rh7 B7e6 Rh5 Nf3 Ke2 Nd4+ Kf1 Ra6 Be2 Bb3 Kg1 Rb6 Rh4 Ke5 Re4+ Kd5 Bc4+ Kc5 Na6+ Kc6 Re1+ Kd7 Re5 Ke7 Bd5 Qgd3 Kg2 Nc8 Bf4 Nh5 Rf5 Bd7 Be3 Rh6 Rfg5 Nd6 Re5+ Be6 Bg5+ Nf6 Nb8 Qg6 Kg1
1n2NQbk/bB2Rp2/K5n1/1RNP3p/1Qp2B1P/5NnB/1q3rp1/1r1N2Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Qd6 g5 Qh6 gxh6 Bf5 Qb3 Bd7 Qd1 Bc8 b4 a5 h4 c5 d4 g5 Kd2 f3 Kc3 a4 Kc4 f2 e4 g4 d6 a3 d5 g3 h7 a2 d7+ Ke7 d8N Kf6 e5+ Kg7 e6 Ba6 e7 Bc8 e8B Bd6 b6 Bb7 Kb5 c4 Bf4 Bc5 Bc6 Be7 Bh3 f1Q Nf3 g2 Nc3 Bc8 b7 Be6 Rb1 Nd7 b8N a1N Nb7 Bc5 Nd6 Nc2 Bb7 Ne7 Na6 Ba7 Nc5 Qe2 Qg1 Bf5 Ka6 Rhb8 b5 Kh8 b6 Ng6 Nd1 Ne3 Ne8 Nf1 Rb5 Bd3 Qh2 Ng3 Re1 Qb2 Re7 Rc8 Qg1 Rc6 Nc3 Rf6 Nd1 Rc8 Ba8 Rf5 b7 Rc7 b8Q Rb7 Ra5 Rb3 Qb4 Bb1 Rb5 Nb8+ Ka5 Rc3 Bb7 Rc1 Bc8 Bd3 Bb7 Rb1 Bd6 Ne5 Ng5 Rf2 Nf3 Bg6 Nc7 Kg7 Ne8+ Kh6 h8Q+ Bh7 Qf8+ Kg6 Qh2 Bg8 Qg1 Kh7 Bc7 Ng6 Bf4 Nc6+ Ka6 Kh8 Bd2 Ne4 Bg5 Ng3 Bf4 Nb8+
r2R3n/1Q3pk1/1N2B1Np/pKB5/bnRNP1qR/P2p4/1RQ3r1/3Qbn2 w - - 0 1 legal: proof: f4 e5 fxe5 c5 b4 g5 bxc5 Qf6 h4 Qf4 d4 Qh2 d5 Be7 d6 Bxd6 hxg5 Bf8 Kd2 d5 Kd3 a5 g4 b5 c4 h6 e4 b4 c6 d4 g6 b3 g7 b2 a3 Qf2 e6 Qh2 c7 Bb7 c8R+ Ke7 c5 Kf6 Kc4 d3 g5+ Kg6 c6 Qh4 c7 Na6 e7 Qg4 e8R Ne7 g8N Qh5 Be3 Rh7 Kb5 Qh2 Nf3 Ra7 Red8 Ra8 Nbd2 b1N Bh3 Ra7 Nc4 Nc6 Be6 Qg2 Rh4 Nab4 Bc5 Ra8 Ne7+ Kg7 g6 Nd2 Nb6 Qg4 Ra2 Nf1 Rb2 Ne5 Nd4 Bd5 Qc2 Bb3 Qd1 Kf6 g7 Ng6 g8Q Nh8 Ng6 Rg7 Qc2 Be7 Qd1 Bd6 Qf8 Rg8 Qe7+ Kg7 Qd7 Bf4 Qd5 Bg3 Qb7 Nd2 Rb8 Nf1 c8Q Be1 Qcc7 Kf6 Rbc8 Rg7 Ne7 Rg5 Ng6 Kg7 Qh2 Rf5 Qhc2 Rf2 Bd6 Rd2 Rc4 Rg2 Bc5 Ba4+
1KQnb2r/2RN1p1R/B2PQP1N/1bpq1N2/pr2N2p/7B/k1r4B/5Rn1 w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 Kd2 Kd7 Kd3 e5 Kc4 a5 Kc5 h5 g4 c6 b4 h3 f4 h2 b6 a4 g5 e4 b7 e3 b5 e2 f5 e1R g6 Ra6 f6 Qe7 b6 Nh6 g7 Qe4 g8B Qf4 Bh3+ Qf5 Qe2 Rh7 Nf3 Ra7 Bf4 Rd1 Nc3 Rf1 Ne4 Rh8 Ne5+ Ke8 d7+ Kd8 Kd6 c5 Bh7 Nc6 b8N Ra8 b7 Rd1 Ng4 Ng8 Nh6 Rd2 Raf1 Rc2 Qg4 Qg5 Qe6 Ne5 B7f5 Nf3 Bfg4 Ng1 Be2 Ra5 Ba6 Qe5+ Kc6 Qf5 Kb6 Qg5 Ka7 Ne7 Bg3 Qe5 Nc6+ Kc7 b8N Rb5 d8R Bd7 Bf4 Be8 Nd7 Rb4 Bg3 Ng6 Ne7 Nf8 Nef5 Qd6 Ra8 Qe5 d6+ Kc6 Rb8 Qd5 Rb7 h4 Kb8 Ne2 Rhg1 h1B Bh2 Bf3 Rg5 Ng1 Rg7 Be2 Rh7 Bb5 Qe7 Qb3 Rc7+ Kd5 Qe5+ Kc4 d5 Qa2 Qe6 Kb3 Nb6 Rcc4 d7 Rc2 d8Q Ka3 d6 Qd5 Qdc8 Ka2 Qe5 Ne6 Nd7 Nd8 Qe7 Qb3 Qe6 Qd5
RrNN4/n1Qq1pbR/1bRpN3/1RPn1k2/QB3P2/p2p4/b6K/B1rQ4 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 e6 g4 Nh6 gxh5 Ng8 Bg2 Qc7 Bf3 Qd8 Bd5 exd5 Kf1 Ke7 Kg2 Ke6 b4 a5 e4 g5 c4 d6 h4 d4 f4 d3 e5 a4 b6 a3 b7 g4 b5 g3 b6 Qe7 h6 Qf6 h5 Ra5 c6 Qg5 h7 Qg4 h6 Rc5 c7 Bd7 c8N Qg5 Bd2 Ne7 Ne2 Qf6 Nbc3 Be8 Rc1 Kf5 e6 Kg4 Ne4 Nf5 e7 Qh4 Ng5 Bd7 e8Q Qh5 Ne6 Ba4 Nd8 Rc6 Bb4 Na6 b8Q Bb5 b7 Ne7 Qc7 Nd5 b8R Kf5 Rc2 Rg8 h8B Qg4 Ba1 Bg7 h7 Rc5 Kg1 g2 h8R Rc6 Rb7 Nb8 R1h7 Rf8 Kh2 g1B+ Kh1 Bc5 Kh2 Bb6 Rc1 Ba4 Rc3 Bb3 Nd4+ Kg6 N4e6 Ba2 Qed7 Kf5 Rc1 Rc5 Q7a4 Nc6 Rc3 Ba5 Rb6 Na7 Rc6 Bb6 Rb3 Rb5 c5 Rg8 Bd2 Rb4 Rb1 Rc4 Rb5 Rc1 Bb4 Kg6 Ng5 Qd7 Nge6 Kf5 Ne7+ Ke4 Nb7 Ra8 Rc8 Rb8 Nbd8 Rb7 Ra8 Rb8 Nc8 Kf5
K1n1Nq2/B3p1B1/p3kp2/R1Q1r2r/2R3bP/B2R1Pp1/Bn1br2Q/5N1N w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 Ke2 Kd7 Ke3 g5 Kd4 e3 Kd5 f6 d4 a6 h4 g4 c4 e2 h6 e1R b6 g3 f3 Re2 h7 Ra7 b7 Re6 Ba3 Qc7 c6+ Kd8 c5 Qa5 c7+ Kd7 Bc4 Ra8 Nd2 Qa4 c6+ Ke8 Nf1 Kf7 Qc2 Re3 Ba2 Bg7 Nh3 Nd7 b8B Rc3 Qh2 Qb4 Nf2 Qb6 Ba7 Bb7 c8Q Rc2 Rg1 Qb4 Nh1 Rb8 Rc1 Re2 Rc4 Nh6 Rg2 Rf8 h8B Ne5 Qf5 Bc8 c7 Nd3 Kc6 Qb1 d5 Nb2 d6 Rb5 d7 Rbe5 d8R Be6 Qc2 Nf5 Kb7 Nd6+ Ka8 Nc8 Rd3 Bh6 Bg7 Rh8 Qc3 Qc1 Qb4 Qd1 Qc5 Bg4 Rg1 Ke6 Rg2 Nd6+ c8N Bd2 Rf2 Rhh5 Rg2 Nf5 Nd6 Qb3 Ne8 Nd6 Rg1 Nc8 Rg2 R2e4 Re2 Qb4 Re1 Re2 Rec1 Qb6 Ra4+ Qb3 Rcc4 Qb6 Ra5 Qd8 Nd6 Qh8 Ne8 Qf8
8/3npq1P/b1pRN3/r1N1Qr1B/3pQ1n1/1NB1Q2p/R1NK3P/1k2bRb1 w - - 0 1 illegal: No possible last move, all moves rejected
rQr2QB1/nB1pK1P1/n5Nk/8/3p2bP/b1rQ2RR/2p2qQp/2N2RB1 w - - 0 1 illegal: No proof kernel
3B4/1PpR4/1pB1n2b/kb2B3/3Rn1rp/PbNN1Rr1/qQ2pQ1N/4KN2 w - - 0 1 illegal: No proof kernel
1RQQb1B1/qp2p2N/2P4b/3b1n2/P1N1r3/R1p1B1K1/pN2r2n/B3kBQ1 w - - 0 1 illegal: No proof kernel
NK6/p4PbB/r1bB2np/1NB3qn/QRP3rk/p2Qp3/N2B2Qr/6R1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 Nc6 dxc5 Nb8 Ke2 Kf7 Kd3 e5 Ke4 d6 Kd5 a3 b4 h6 f4 e4 c4 e3 g4 Nc6 b5 Qb6 f6 Kg6 f7 Qd8 f5+ Kg7 f6+ Kg6 b6 Qc7 b7 Bg7 b8B Ba6 f8B Qd7 f7 Bb5 Bd2 Be5 Nc3 Rh7 Na2 Ba4 Rb1 Bd4 Ne2 Qe7 Rb4 Qd7 Nec3 Qe7 Rg1 Bc2 Nb5 Ne5 c6 Rh8 c7 Qf6 c8N Ba4 Nb6 Qg7 Ke6 d5 Kd6 Nf6 Kc7 Rg8 Bc5 Nh5 Bg2 Qf6 Be4+ Qf5 Bc2 Bc3 Qf1 d4 Qd3 Re8 Kb7 Re6 Bbd6 Rg8 Na8 Rg7 Kb8 Rf6 Nbc7 Bc6 Nb5 Bb2 Qc3 d3 Qb3 Qe6 Qa4 Rf2 Bb1 Rh2 Bc2 Qf5 Bb1 Kh7 Bc2 Rg6 Bb1 Re6 g6+ Kg7 Bc2 Kf6 g7 Kg5 g8Q+ Ng6 Qh7 Kh4 g5 Bg7 Bb1 Re4 Bc2 Rg4 Bb1 Ne7 g6 Qg5 Bc2 Bd4 g7 Ng6 g8Q Bg7 Bc3 d2 Be4 d1R Bd2 Rf1 Bb1 Ne5 Qd3 Rf6 Bc2 Bh8 Qgg6 Bg7 Qge4 Rg6 Qg2 Re6 Qde2 Rf6 Bh7 Ng6 Qd3 Be8 Bf8 Ra6 Bfd6 Bc6
1N3qR1/5BR1/3pB1bk/1Qnr2R1/QnpP4/2P1p1p1/bqr3K1/N2B1RN1 w - - 0 1 illegal: No possible last move, all moves rejected
N4r2/1p1B2b1/q6R/RKRnBRN1/Q1Br1NP1/1bPp3p/7p/1kq2nQ1 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 h4 gxh4 d4 Nc6 dxc5 Nb8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 a4 h5 f4 d5+ Kb5 e5 f6 h3 c3 h2 a6 h4 c6 d4 f7 Qg5 c7 Qe7 a5 Rh6 f5 Rc6 a7 Qd6 f6 Qe6 a6 Bg7 f8R Nh6 f7 Nd7 Bf4 Nb6 Ra5 Nd5 Ne2 Rc4 Nd2+ Kd3 Qc1 Qg6 Nf3 Be6 c8B Nf5 Bd7 Nfe3 Ng5 Rb8 Qa1 Kc2 a8N Ra4 Rh8 Rf8 a7 h3 Rh6 e4 Be5 Rc4 Nf4 Ra4 Bc4 d3 Rd1 Nf1 Rb1 e3 Rb4 e2 Rb3 Nfe3 Qg1 e1Q Rb1 Nf1 Rb4 Rh8 f8R Qc1 Rf5 Rf8 Rb1 Qa3 Re1 Qc1 Re4 Kb1 Rd4 Nb6 Rd5 Bf7 Rc5 Nd5 Nb6 Qd6 a8Q Qe6 Qa6 Qg6 Na8 Qf6 Bb3 Rd4 Bc4 Qg6 Qa7 Qa6+ Ka4 Nde3 Qb6+ Qb2 Qc6 Rd6 Bb5 Bb3+ Kb4 Qd2 Bc4 Qc1 Qb5 Rd4 Qa4 Qg6 Kb5 Nd5 Rh7 Qf6 Rh6 Qa6+
Q3R1bb/1B1knr1p/pr2N2P/4pN1R/3N2pq/2r3P1/4RQ1B/R3BKb1 w - - 0 2 legal: proof: c4 b5 b4 f5 e4 fxe4 a4 d5 axb5 a6 cxd5 Bd7 b6 Nc6 b5 Nb4 b7 Nc6 b6 Na7 bxa7 Bc8 b8B g5 f4 c5 d4 e3 h4 c4 d6 e6 d5 g4 d7+ Ke7 d6+ Kf7 h5 e2 h6 c3 f5 c2 f6 Qe7 d8R Qc7 d7 Bb4+ Nd2 Bb7 Nf3 Qc5 Rh5 Qc7 Nd4 Bc8 Nf5 Qf4 Re8 Qg5 d8R Ne7 Bh2 Bc3 g3 Rf8 Bg2 Rb8 a8Q Rb6 Bb7 Qh4 Kf2 e1B+ Kf1 Bd7 Nb3 Bf2 Qe2 Bg1 Bd2 c1R+ Be1 Bcd4 Rc8 Rc3 Qf2 Bc6 Rc7 Bd5 Rc4 Be5 Re4 Bc4+ Re2 Bd5 Rb8 Bc4 Nbd4 Ba2 Bc8 Ke8 Bb7+ Kd7 f7 Bh8 Re8 e5 Qg2 Rg8 Qf2 Rg7 f8N+ Kc7 Nb3 Rf7 Ne6+ Kd7 Nbd4 Rf8 Ng5 Bg8 Nge6 Rf7
3q3N/Q1RB2N1/2nN1Pb1/2Rr2b1/2pQ3N/r5p1/rbPpRp2/k4BBK w - - 0 1 illegal: No proof kernel
2R1q1N1/bnNB1NNp/1Q1pp3/1bRB1Q1Q/5pn1/3K1P1R/4P1r1/4kqn1 w - - 0 2 legal: proof: d4 g5 a4 b5 axb5 c5 dxc5 g4 f3 g3 Be3 Qc7 Bf2 Qd8 h4 gxf2+ Kd2 a5 g4 Bg7 g5 Ra6 h5 Rg6 hxg6 Bf8 b4 f5 c4 d6 c6 a4 c5 a3 g7 Kf7 g6+ Ke6 c7 Kd5 c6 Kd4 b6 f4 b5 a2 b7 Bd7 c8Q Bf5 b6 Kc4 c7 Qe8 Nh3 Kb4 Ng5 Nf6 g8B Be6 g7 Qd7 Nc3 Na6 b8Q Ng4 b7 Bc4 Bd5 Rg8 Rc1 a1Q Rh3 Bb5 Na4 Qe8 Qf5 Nc5 c8R Qb1 Nf7 Qa1 Bg2 f1N+ Kc2 Nd2 Qh1 Nde4 Qc7 Ng5 b8N Nb7 Qb6 Qb1+ Kd2 Qa1 R1c5 Qf1 Qh2 Rh8 g8N Bg7 Qh1 Bd4 Na6+ Ka3 Ngh6 Rg8 Nc7 Kb4 Kc2 Rg7 Ng8 Be3 Nc3 Bg1 Ne4 Rg6 Ng3 Bd4 Rh4 Nh3 Nh5 Ng1 Rh3 Be3 Ng7 Bf2 Bc4 Bd4 Kd3 Rg5 Ke4 Kc3 Bd5+ Kd2 Qh2 Ke1 Qh1 Ba4 Kd3 Bf2 Rh6 Rg6 Qhh5 Bc6 Bh3 Bb5+ Kc2 Nh2 Kc3 Rg2 Kc2 Ng4 Kc3 Ba4 Kd3 Bb5+ Rc4 Rg3 Qfg5 Nh2 Qe3 Bc6 Qhh4 Qd8 Bd7 e6 Qf5 Bb5 Qhg5 Qe8 Rh3 Rg2 Qh5 Ng4 Qc5 Rh2 Qc6 Ba7 Qb6 Bc6 Rc3 Rg2 Rc5 Bb5+
n1N5/qr1R4/bP1RN3/Q1pp1pp1/1KBP4/4R2n/3B1bk1/NQBBq1b1 w - - 0 1 legal: proof: g4 e5 f4 exf4 b4 h5 gxh5 a5 a4 b5 axb5 a4 b6 Qe7 c4 Nf6 c5 Ra6 b7 Qd8 b5 Rb6 cxb6 Ng8 d4 Ke7 Kd2 Kd6 Kc3 Kd5 e4+ Ke6 h4 d5 h6 f5 e5 g5 h7 a3 h5 f3 h6 f2 Qe1 a2 Nd2 c6 Nh3 Nf6 Bc4 f1Q Nf4+ Ke7 e6 Kd6 e7 Bg7 e8B Na6 b8Q+ Qc7 b7 Ng4 Bh5 Nf2 Bd1 Be5 Nb3 Nh3 Ne6 Bh2 b6 Rd8 h8N Bg1 h7 Rd7 Qa7 Ke7 b8B Kf6 Nf7 Kg6 h8R Bb7 Rb1 a1B+ Rb2 Qe2 Rd8 Kh5 Nd6 Kg4 Nc8 Kf3 Bd2 Re7 Rd7 Kg2 Rd6 Qd7 Qa8 Nc7 Kb4 Qe4 Qa5 Ba6 Rc2 Na8 Rc3 Qh4 Re3 Qa7 Bc1 Bb2 Na1 Rb7 Rd7 Qf2 Bf4 Qe2 Bd2 Bc1 Rd6 Nf2 Rh7 Nh3 Rhd7 Bf2 Rf3 Qf1 Qe4 Qe1 Qb1 Bg1 Bc3 Bce3 Bd2 Bef2 Ra3 Qe4 Bc1 Qe5 Bfd2 Qe1 Re3 c5+
3rRrr1/B2QQ3/1K2BNn1/BNp2R2/1qpp1p1R/2PP2b1/1k3N2/bq5N w - - 1 2 illegal: No proof kernel
N2Nr2n/3RQQpR/bq1Qq1P1/p2p4/PR2r1KB/1Nb5/1B1pk3/1b5Q w - - 1 2 illegal: No possible last move
r1B5/2Q1pRp1/4qQ2/2KP2Pb/BnpNn2N/1Q3Q2/R1qb3p/2kbBN2 w - - 0 1 illegal: No proof kernel forced: wxDB
BQr2RN1/2pbr2k/3Q1ppb/p1b3R1/q4P2/4nK2/1B1Q1P2/2QB1NNq w - - 0 1 illegal: No proof kernel
qR5n/1qBp1NNB/4R1pK/rpbR2BP/4qQbp/kP1N4/2QR1r2/8 w - - 0 1 illegal: No proof kernel
2RNK2Q/1pR5/1ppbB1RB/qk6/1n1n2r1/R1P5/bP1p3Q/Nq2BqQ1 w - - 0 2 legal: proof: g4 f5 gxf5 g5 h4 e5 d4 g4 dxe5 Bh6 Qd6 Bf8 Qb6 axb6 Kd1 Ra3 Kd2 Rd3+ Ke1 Rd6 Bh6 Rg6 Bc1 Rg5 hxg5 Be7 Nh3 Bc5 Ng1 Bf8 Kd2 d5 Ke3 Kd7 Kd4 Kc6 f4 h5 a4 g3 e4 h4 g6 g2 f6 h3 f7 h2 a5 Bd7 e6 Bc5+ Ke5 d4 f8Q d3 f5 Qe8 f6 Rh6 c3 Qc8 e7 Bf2 e8R Na6 f7 Bh3 g7 Qd7 Re7 Rh7 Nf3 g1Q Qb8 Rh8 f8B Qc8 Ng5 Qd7 Na3 Be3 Bd2 Nf6 g8Q Bf5 Bh3 Nc5 a6 Rh5 a7 Rh7 a8R Bg6 Be6 Qc8 Be1 d2 Nc2 Bh5 R1a3 Nb3 Bh6 Bf3 Na1 Bd1 Nf7 Nd5 Nd8+ Kb5 Rg7 c6 Kd6 Bh5 e5 Nb4 Ke7 Bf7 Rg6 Nd4 Qh8 Bg8+ Ke8 Rg7 Qd6 Qc7 Rc8 Qf1 Rhg1 h1Q R1g2 Na6 Rf2 Bg5 Rf7 Nb4 Rd7 Bf4 Rf7 Qb8 Rfc7 Nf5 Qd4 Qa8 Qg1 Qa5 Qh2 Rf7 Bc4+ Kc5 e6 Qe4 e7 Qb1 Kd7 Bd6 Bb3 Rf6 e8Q Nd4 Qe3 Rf4 Ke8 Rg4 Qeg1 Kb5 Ba2 Be6 Bd5 Bf5 Bg8 Be6 Bf7 Bb3 Be6 Ba2
4rBQB/1KP3R1/1Qp3p1/1QP5/Br1p4/b1R5/1np1BN1n/k1n1rNRb w - - 0 1 illegal: No proof kernel
Q4b2/r1b1p3/Q3nR2/p4p2/BrB1N1Q1/1n1PQpRR/P3N2B/1K1k1bn1 w - - 0 1 legal: proof: e4 g5 c4 d5 exd5 b5 cxb5 Nd7 f4 gxf4 h4 Nb8 g4 Bg7 h5 Qd6 g5 Qg6 hxg6 Bf8 b4 Kd7 g7 Kd6 b6 Ke5 g6 Kd4 b5 h5 d6 c5 d7 a5 d8Q+ Bd7 b7 c4 b6 c3 Bc4 h4 d3 h3 Nd2 Ke3 Qg4 h2 Kd1 Nf6 Kc2 Nc6 g8R Nh7 b8Q Ra7 g7 Ng5 b7 Nd4+ Kb1 Nge6 Qd6 Nb3 b8Q Rh4 Ne2 f5 Qa6 Bc6 Qa8 Bg2 Qe4+ Kf2 Qda8 Bf1 Qe3+ Ke1 Ne4 f3 Ba3 Kd1 Bd6 Nc1 Rg1 h1N Bh2 Nb3 Rg3 Nf2 Rh8 Nh3 g8B Ng1 Rh6 Bh3 Rf6 c2+ Kb2+ c1B+ Kb1 Bg2 Bb5 Bf1 Ba4 Ba3 Bf7 Bd6 Bg8 Nc7 Bc4 Ne6 Rh3 Rd7 N4g3 Ke1 Qg6 Re4 Bd5 Bg2 Qg4 Rb4 Ne4 Ra7 Bc4 Bc7 Kc2+ Nc1 Nf4+ Ne2 Rb1 Bb6 Rb2 Nb3 Kb1 Kd1 Rc2 Ng1 Rf2 Bg7 Ne2 Bf1 Rg2 Bf8 Rgg3 Bc7
K1b1N3/Bn1B1Qqp/2B3PP/rR2b2p/2RpQ3/1N1b4/r3NpBk/2b1R3 w - - 0 1 illegal: No proof kernel
2R3r1/3Q1pb1/pQ1r1P1q/3R2Nb/P1p2RQ1/1bkB1R2/3pnB2/2N1NbK1 w - - 0 2 legal: proof: d4 b5 h4 e5 dxe5 g5 b4 gxh4 c4 a6 cxb5 Ra7 b6 Bg7 b7 Bf8 b5 Ra8 b6 Nc6 Qd4 Bd6 Qd1 Na7 bxa7 Bf8 b8Q Ke7 g4 Ke6 e4 h5 a4 c5 f4 d5 Kf2 d4 f5+ Ke7 g5 h3 f6+ Ke6 g6 d3 g7 c4 Nc3 h4 Nf3 h2 Ne2 h3 Ne1 Qa5 Ra3 Rh7 Be3 d2 Nc1 Qd5 Bd3 Rh4 Rf1 h1B Kg1 Ne7 g8R Bg7 Rf4 Bf3 Bf2 Nc6 Rd8 Bh5 Qb6 Qa5 Rd5 h2+ Kg2 h1B+ Kg1 Rb8 a8N Bg2 Rc3 Bf1 Rb3 Bg6 Qg4+ Bf5 Rc3 Rh8 Ra3 Rd8 Rb3 Rd6 Nc7+ Kd7 Rc3 Nd4 Ne6 Qb4 Ng5 Ne2+ Kh1 Bb7 Ra3 Rg8 e6+ Ke8 e7 Kd7 e8R Qc5 e5 Qe3 Qd4 Kc6 e6 Bg6 e7 Bh5 Ra8 Bc8 Qa7 Bf5 Qd7+ Kb6 e8Q Bh7 Qee6 B7g6 Bb1 Bc2 Rc8 Bd1 Bd3 Bb3 Rdd4 Ka5 Rd5+ Kb4 Kh2 Nd4 Kg1 Qh3 Qe3 Kc3 Qee6 Bg6 Qe3 Qh6 Qee6 Bh5 Qe3 Ne6 Qb6 Nd4 Qa5+ Kb2 Bf5 Bd1 Raf3 Bb3 Qb6 Ne2+ Kh1 Qh8 Bd3 Kc3 Kh2 Qh6 Kh1 Nd4 Kg1 Ne2+
r2Qb1k1/R3p3/3pP2r/7Q/p3NB2/p1brB2B/P1R2QN1/1rNK1nqB w - - 1 2 legal: proof: h4 b5 d4 g5 g4 c5 dxc5 Qb6 f4 Qc7 h5 Bg7 h6 Qd8 Qd4 Bf8 Qa4 bxa4 fxg5 Qc7 g6 Nc6 g5 Qd8 Bf4 Nd4 Be3 Nf5 Bc1 Ng7 hxg7 Qc7 Nf3 Qb6 Ng1 Qd8 b4 h5 c4 a5 e4 f5 c6 f4 c7 h4 c5 a3 b5 h3 e5 f3 e6 f2+ Kd1 h2 c6 a4 b6 Rh6 b7 Rh4 b8B Ra6 Ne2 Rb6 Be3 Re4 Nbc3 Rb3 Bh3 Rc4 Nc1 Rb5 Nd5 Ba6 c8N Nf6 g8Q Rcc5 c7 Nh5 g7 Rb6 g6 Nf6 Qh8 Nh5 g8Q Rc3 g7 Bb5 Rb1 Ng3 Nf4 Ra6 Ng2 Ra8 Qh6 Bc6 Rb7 Nf1 Ra7 Bb5 Rg1 h1R Qgh7 Rb3 Qc2 Rd3+ Qd2 Rh2 g8Q Rh1 Qh4 Bc6 Qgg5 Bh6 Nd6+ Kf8 c8B Qb6 Qgh5 Kg8 Ne4 Bb5 Bbf4 d6 Bb7 Be8 Qa5 Qc5 Qd8 Qg5 Qh5 Qg3 Bf5 Rh4 Bg4 Qh2 Rh1 Qg1 Bh3 Bg5 Qe2 Rh6 Rh2 Bf6 Qh5 Bc3 Kc2 Ba5 Qde2 Bd2 Kd1 Ng3+ Qe1 f1R Bd5 Rf2 Bb7 Nf1 Qee2 Rf3 Qf2 Rb3 Bd5 Rb1 Nh4 Kh7 Nf6+ Kh8 Qg3 Rb7 Bc5 Re3 Bh1 Rb1 Ne4 Be1 Rc2 Bd2 Ng2 Rd3 Qf2 Kg8 Bce3 Bc3+
r1Q3n1/bpB1q1NQ/1pRp1k2/Nb6/Bp1b4/P2P2bQ/rQ2K3/3R1NB1 w - - 0 1 illegal: Other
n1NN2Q1/nRQnQpp1/N1K1pR1b/2R3nB/4pP2/Br5N/2r3Pk/4q3 w - - 0 2 legal: proof: c4 d5 e4 dxe4 a4 b5 axb5 h5 Qxh5 Kd7 b4 Ba6 b6 Rh7 b7 Rh6 b5 Rb6 Qh7 Rh6 b6 Bb5 cxb5 Ke8 Qg6 Rh8 Qf5 Nc6 Qh7 Nb8 Ke2 Kd7 Ke3 Ke6 d4 c5 f4 a5 h4 a4 h5 a3 d5+ Kf6 d6 e6 d7 a2 h6 c4 Kd4 c3 Nd2 c2 Be2 Be7 Ba3 c1N Nh3 Na6 b8N Nc7 b7 Nd3 b6 Nc5 Na6 Rc8 b8Q Na8 b7 Qa5 d8N Nd7 Nc4 Qe1 Rc1 a1N Nb6 Rc2 Qc7 Nb3+ Ke3 Ndc5 b8R Nd7 Nc8 Nd4 Rb7 Nb5 Rh2 Rb2 Rc5 Ra2 Rg5 Rc2 Rg6+ Kf5 Rh1 Nd6 Kd4 Bg5 Bh5 Ngf6 Qg8 Nh7 Qf8 Rg8 Rf1 Rh8 Rf3 Rg8 Rc3 Nb5+ Kc4 Be7 Qe8 Ng5 h7 Rh8 Rh6 Rf8 h8Q Rg8 Bg6+ Kg4 Bh5+ Kh4 Rf6 Rf8 Bf3+ Kg3 Bh5+ Kh2 Qg8 Nf3 Rg6 Bg5 Qe7 Bh6 Rf6 Ng5 Kb4 Ndb6 Kc5 Re8 Nc6 Rd8 Rc4 Rd3 Nd8 Rb3 Kc6 Nd7 Rc5 Na7+
1K2n2n/Qb1np3/2Q1Bk1N/2N1n2p/5Bq1/NB2P1NP/Rn3pp1/2RRb3 w - - 0 1 legal: proof: d4 a5 f4 b5 a4 g5 axb5 c5 Be3 cxd4 Ra3 g4 Ra1 Ra7 Bc1 Rc7 g3 f5 Kd2 h5 Ke1 Rh7 Bg2 Rg7 Bf1 Rg5 Ra4 Rc6 Ra1 Rf6 fxg5 f4 Bh3 f3 Bf1 Rf4 gxf4 Bg7 Bg2 Bh6 Bf1 Bf8 Kf2 Kf7 c4 d5 b4 a4 h3 a3 g6+ Kf6 g7 d3 Ke3 g3 Kd4 d2 Kc5 f2 b6 g2 b5 a2 f5 d4 b7 d3 b6 Be6 Na3 Nh6 g8N+ Kf7 f6 Nc6 b8R Bd5 b7 Nd4 Rc8 Nf3 b8Q Kg6 f7 Bg7 f8N+ Kf5 Qa7 Bc3 Nd7 Kg6 Qc2 d1N Bf4 Qf8 Kb6 Ne5 Kc7 Qg7 e3 Nb2 c5 Be1 c6 Nhf7 Kb8 Nbc4 c7 Bb7 Nc5 Nh8 Ne2 Nd6 Nh6 Kf6 Ng3 d2 Bc4 d1N Bb3 Qg4 Rd8 Nb2 c8B Ne8 Bce6 Neg6 Rad1 a1N R8d2 Ne5 Qe4 Nc7 Qc6 Ne8 Bbd5 Nb3 Re2 Nd2 Bb3 Ndc4 Rf1 Nb6 Rg1 Nbd3 Ra2 Nb2 Rc1 Bc3 Rgd1 Ba5 Bc2 Be1 Bcb3 Nbd7+
Qnkn4/B1qrR2p/1Qp1r3/3PP2p/p3BRQ1/b2b1K1p/N4B2/4BN1N w - - 0 1 illegal: Other
1b2Q1N1/1k2qBBB/5p1p/7N/1p2pQN1/r1Q1RnPp/1PKbb3/1B2R1n1 w - - 0 1 illegal: No proof kernel
Qn1bbNK1/Np3p1N/6P1/B3q2p/1Q2RP1p/2np4/n1R1R2Q/1Q1B1kr1 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 c5 bxa5 gxh4 d4 d5 dxc5 d4 Bc4 Ra6 Bd3 Rd6 Bf1 Rd5 exd5 Be6 Ne2 Bg4 Ng1 Bc8 Kd2 Kd7 Kd3 e5 Ke4 h5 Kf5 d3 f4 e4 a4 e3 c4 e2 g4 e1N a6 Ng2 g5 Qa5 d6 Kc6+ d7 Ne7+ Kf6 Qb6 d8N+ Kd7+ c6+ Kd6 g6 Kc5 a7 Kd4 a8Q Qb5 a5 Qb2 a6 Bd7 c5 Qa2 c7 Qa5 c8R Ba4 a7 Qb6+ c6 Nf5 Nc3 Qb5 c7 Ne7 Bd2 Bc2 Nh3 Rg8 Ne6+ Kc4 Rh2 Qa4 Qb1 Qb4 Nhg5 Qc5 Nh7 Qa5 Be2 Ba4 Nb5 Ne3 Bd1 Nc2 Re2 Nb4 Ra2 Kd5 Rc2 Na2 Re8 Bh6 Bc3 Kc4 Nef8 Nd5+ Ke5 Bg5 c8Q+ Qc7+ Kf5 Rh8 Ba5+ Ndc3 R8e4+ Kd5 Qe8 Bd8 Qe7 Rg8 Kg5 Qe5+ Kh6 Rh8 Qeb4 Rg8 Ne6 Re8 Nef8 Re7 Nd6 Be8 Nb5 Na6 Qc8 Nb8 a8Q Rc7 Na7 Rc4 R4e3 Kd4 Qh3 Qh8 Re7 Qe5 Rf2 Ke4 Qh2 Ke3 Rfe2+ Kf3 Nf6 Re4 Kg7 Re3 Kg8 Re4 Red2+ Re2 N6h7 Ke3 Qh1 Kf2 Qh2+ Kf1 Re6 Re3 Re2 Rg3 Re4 Rg1 Ree2 Qb5 R6e4 Qe5
1Q1B4/1qpbQ3/4NQRr/B1r1N2B/p1q1N1pP/PBbp2K1/3p1R2/k3n3 w - - 0 1 legal: proof: g4 e5 c4 b5 cxb5 h5 gxh5 Na6 f4 Nb4 e4 Qe7 d4 Na6 f5 exd4 e5 Nc5 Bg5 Ne6 fxe6 Qf6 Bc1 Qd8 Kf2 Ke7 b4 a5 h4 f5 b6 d5 a3 g5 b7 d3 b8Q d4 h6 d2 b5 f4 b6 a4 b7 f3 h7 Ra7 Ne2 Ra5 Nbc3 Bh6 Kg3 f2 Ra2 Nf6 Rg1 Ra6 Nf4 Nd5 Ne4 Qg8 Qf3 Rd6 Bc4 Rc6 Bb3 Nb4 Bb2 Rc5 Bc3 Nd3 Ba5 Bg7 Rb2 Kd8 e7+ Kd7 e6+ Kc6 e8B+ Bd7 e7 Kb5 Ne6 Ne1 Bh5 Qc8 e8Q Bf6 Qe7 f1Q Rb1 Bg7 Qff6 Qc4 Rf1 d3 Rf2 g4 Rc1 Rd8 h8B Rg8 Qh6 Bb2 Bf6 Rh8 Bg5 Ba1 Qhf6 Rh6 Rc2 Qd5 Rc4 Bc3 Rd4 Qc4 Rd6 Bc6 Qa7 Qa8 b8N Bd7 Nc6 Qb7 Qb8 Qb4 Bd1 Kc4 Bc2 Qb3 Bd1 Qc2 Ne5+ Kb3 Rb6+ Ka2 Rc6 Qcb1 Bb3+ Ka1 Qf3 Qc2 Nf4 Rc4 Qc5 Bd4 Bd8 Ng2 Rg6 Ne1 Qe7 Rc5 Ne6 Qc4 Qff6 Bc3
1B2Q3/3PBp2/pN6/NnKp4/p1Q2P1R/1RBRnpkB/1q2b3/1rb1q2Q w - - 0 1 illegal: Other
k1K1q3/1n3p1Q/2ppQN1R/1B2qn1P/2bQ3r/2BPBp1N/3bNp2/2RQ4 w - - 0 1 illegal: Other
BKB2R2/qp3pb1/1pQnQB1B/3rR3/2N2q2/2R2P2/PQb1npp1/2N4k w - - 0 1 illegal: Other
N1br3n/1QNp1P1r/B2p4/2k2nQQ/2p1RB2/2K1pRbp/1r2P2B/3Q2R1 w - - 0 1 illegal: Other
5B2/pQ3b1B/1pNQ4/r1R1bNNp/Qb3B2/1PppK1qQ/P3R3/1k1r2b1 w - - 0 1 illegal: No possible last move
2nQNn2/2bQ2Kn/k1bpNQN1/bqrPB3/Rp4Qr/1PR1q3/B5B1/7r w - - 0 1 illegal: No proof kernel
N2Rq2b/k1BQB3/1rRnrb2/3bQKp1/B3Q3/q1Q1p1P1/2qrP2N/4Rn2 w - - 0 1 illegal: No proof kernel
B5B1/R2N1QpR/3pbqr1/1nqnb1PR/rB1k4/Qb1P1n2/N4r2/N2KR3 w - - 0 1 illegal: No proof kernel
1n2kN2/2Rb1N2/B1bppQBq/1n1rPN1R/1r3nK1/r1R3Q1/2RP4/2b2qB1 w - - 0 1 illegal: No proof kernel
1bRqB3/5np1/1Br1kr2/3nB2Q/1rN2p2/2bN1Pbb/n2RK1P1/Q1N3BQ w - - 0 1 illegal: No proof kernel
1qRn2q1/rq2NB1b/1bp1B1Q1/1r3RKp/1RPk2N1/2N1q2Q/R2B3P/1n5q w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 Ke7 Ke3 Ke6 Kf4 h5 e4 d5 b4 a5 c4 a4 b6 d4 b7 g6 b5 d3 b6 d2 Qb3 d1Q Nf3 g3 Ra2 a3 Bd2 g2 Nc3 Nc6 b8R g1Q b7 Bc5 Bd3 Qge1 Rf1 Nf6 Kg5 Bb6 Bc2 Bd7 Rc8 Ra7 b8R Qb1 Bd3 Qf8 Be2 Nd8 Bd1 Bc5 Rb4 c6 Be2 Bb6 Bd1 Ke7 e6 Kd6 e5+ Kc5 e7 Nd5 e8Q Bf5 e6 Bc2 Ne5 Qe3+ f4 Kd4 e7 Qg7 Ne4 Nc3 Bg4 Rf8 Be6 Rf5+ Kh4 Qh7 Ng4 Rb5 f5 Qb2 f6 Nb1 f7 Qg7 Ra1 a2 f8N Qe5 Qf7 Qb8 e8B Qb7 Rf3 Qb8 Nc3 g5+ Kh3 Bh7 Ng6 Qb7 Ne7 Qb8 Qg6 Qb7 Nf2 g4+ Kh4 g3 Rf5 g2 B8f7 g1Q Ng4 Qh1 Be1 Qbg2 Bd2 Qd5 Qd1 Qde5 Qf1 Qeb8 Qh3 Na3 Re1 a1Q Re2 Qag1 Rg2 Nb1 Re2 Qeg3+ Kg5 Q1e1 Bf4 Qgg1 Ra2 Qee5 Bd2 Qg7 Qg2 Qg8 Qh3 Qe3+
3Qr2B/4nq1p/1Nqp1b2/2qP2NP/r5n1/B1Nb2k1/QQR1Qn2/3R1BnK w - - 0 1 illegal: No proof kernel
5QBK/1R5R/r2bnnn1/rp3pn1/1qNk1Bb1/qP1B1P1R/1N6/Q1R1b2Q w - - 0 1 illegal: No proof kernel
2N2Q2/p1q2N2/1R1r2kp/3bq2n/NNKRq2Q/BBbQ4/Pb3r1P/1q3n1B w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f5 g4 fxg4 bxc5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 Kf7 Kc3 g5 e4 b5 f4 d5 f5 g3 f6 g4 c6 g2 c7 g3 e6+ Kg6 e7 h6 e8N Bd7 c8N Ba3 f7 Bc6 f8Q Na6 e5 Nb4 e6 Qc7 e7 Nf6 Nh3 g1Q Bc4 g2 Ng5 Qe3+ Qd3+ Qe4 Rd1 g1B Bb3 Nh5 Nf7 Be3 Nf6 Bd4+ Kd2 Rg8 e8B Bab2 c4 Nc2 c5 b4 Nc3 Ne3 Na4 Bdc3+ Ke2 d4 Rb1 Rb8 Nd5 Rb6 Qe7 Qe5 Qh4 Rf8 Bd7 Qc7 Bh3 Qe5 Bg2 Ra6 Bh1 Nf1+ Qe3 Qc7 Rd2 Qee5 Kd3 Rb6 Kc4 d3 Rd1 d2 Qed4 Ba8 Qe3 Rd6 c6 Bb7 Nd8 Rf2 Nf7 Qb8 c7 Bc6 Re1 d1Q Qd3+ Qf5 Re7 Qg4+ Re4 Qe5 Rd4+ Qge4 Bf4 Qb7 Bc1 Ba1 Ba3 Bab2 Bc2 b3 Nb4 Ba1 Bd1 b2 Bb3 Qb8 Ncb6 Qd8 c8Q Qde7 Qf8 Qc7 Rc1 b1Q Nc8 Bab2 Re1 Qee7 Re3 Qf6 Rf3 Qh8 Rf5 Qf6 Rb5 Qe5 Rb6 Bd5+
6bK/pp1Q3n/1bN1Q3/Rn2Rqr1/n4p1r/br1R1P1B/kP4N1/N1B3BB w - - 0 1 illegal: No proof kernel
4Q1nk/Q4p2/2qNbPR1/KBqb3B/2Nr1N2/1R1p2B1/3PNrpn/b2Q2q1 w - - 0 1 illegal: No proof kernel
B1BNrB1K/4RQQ1/n1bbq3/1p3p1N/2R2P1p/1P2r2N/1qNnkq2/1n4R1 w - - 0 1 illegal: No proof kernel
1QK1R1qQ/NppQ1Q2/1Pq2r1b/p1B2N2/k2n3B/P2n1b1N/b3n1B1/2R3r1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 Ke2 Kd7 Kd3 e5 Ke4 a5 f4 h5 g4 h3 b4 h4 d4 h2 d6 Kc6 d7 h3 d5+ Kb6 f6 Ne7 g5 Nf5 a3 Na6 b5 Bg7 g6 Nd4 f5 Ne6 f7 Bf8 g7 Qf6 g8N Qd8 d6 Nac5+ Kd5 e4 f6 e3 Bg2 e2 Be3 e1N Ne7 Rb8 Nc3 Rh5+ Nf5 Nd4 Rc1 Be7 f8Q Ncd3 f7 Rh4 Qh8 Qg8 d8Q Rh6 d7 Nc2 Qd2 Re6 f8Q Bg5 Qf7 Rf6 Qe8 Bh6 d8B Bd7 Be7 Ra8 Qb8 Ra6 Bg5 Ne2 Bh4 Ncd4 Bb4 Nf2 Ke5 Be6 Qd1 Ba2 Qd3 Nb3 Qdd7 Nd3+ Kd5 Rg6 Bd6 Rg4 Ke6 Rg7 Bf8 Nbd4+ Ke7 Kc5 Kd8+ Rd6 b6 Rg4 Ne7 Rf6 Re1 Rg7 Nb5 Rg3 Na7 Rg4 Nac6 Kb5 Kc8 Ka4 Nf5 Rg7 Nf3 Rgg6 Ng5 Rg7 Rhg1 h1B Rgf1 h2 Nh3 Rg3 Rc1 Rg5 Rf4 Rg4 Re4 Rg5 Re8 Rg7 Bf3 Rg1 Bc5 Bg2 Bd5 h1Q Be4 Bf3 Bd5 Qh2 Be4 Qd6 Na7+ Qc6 Bd5 Bg4 Bg2 Bf3
1R4r1/Rnp1B1Q1/1R2npr1/qRP2Q2/Bqr1p2K/b3nP2/3k1B1N/QbN5 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 h5 gxh5 b5 axb5 Be6 Qe2 Bf5 Qd1 Bc8 c4 Kd7 d4 Kd6 h4 e5 b4 a5 b6 g5 f3 e3 b5 a4 h6 a3 c5+ Kd5 h7 e2 Kf2 Kc4 Kg3 f6 b7 g4 d5 e4 h5 a2 b6 Qd6+ Kh4 g3 h6 g2 Be3 Be6 Nd2+ Kc3 Bf2 e1N Bb5 Nd7 b8R Nc2 b7 Qb6 d6 Ne7 Nf1 Ra4 Nh2 Rg8 h8Q Rc4 h7 Nc8 Qg7 Ne3 Ba4 Qb4 h8Q Bf7 Qb1 Kd2 Ne2 g1R Nc1 Rg6 Qh5 Bd5 Qf5 Be6 Qh8 Bh6 Qg7 Nf8 d7 Nd6 d8B Bd5 Re1 Ne6 Be7 Bf4 Rh1 Be5 Re1 Bb2 Rg1 Ba3 Qb2+ Rc2 Rb1 Bb3 Qa1 Rc4 Ra8 Bd1 b8R Bc2 Ra7 Bd3 Rb3 Bb1 Rb6 Nb7 Rg5 Qc3 R3b5 Qb2 Rh5 Qb4 Rh8 Ra8 Qae5 a1Q Rb8 Qac3 Raa6 Qa5 Ra7 Qcb4 Qa1 Nd6 R8b7 Rg8 Rb8 Nb7
1rq3Rb/1p3Rpn/nP1p3N/Br5N/K4QR1/4q2Q/N2Pb1Nb/1B3Bnk w - - 0 1 illegal: Other
rB3br1/Np2NQq1/2RQ2p1/p3Rn1k/BKQB3q/P3r1P1/b6B/Rn4b1 w - - 0 1 illegal: No possible last move, all moves rejected
N1Rq1Q2/2r1p1pB/2NB4/Q2B4/p3b2r/P1R3Qn/3bP1B1/kbRK1nnq w - - 0 1 illegal: No proof kernel forced: wxDB
4k1b1/K1p3Q1/p1r1q1p1/2n1NnB1/1rB2B2/P4NnQ/RQR1qQP1/2b1rN2 w - - 0 1 illegal: No proof kernel
B1N2BQ1/1p2R3/kPB2np1/r1bp2N1/qQ2BRPr/R7/2b1n1Kn/r1r1Q3 w - - 0 1 illegal: No proof kernel
1K1r1n1k/1R2BnR1/3B1r1N/pRn3pQ/1RrN1nP1/PQb2p1B/6b1/4q1N1 w - - 0 1 illegal: No proof kernel
1Kbb1r2/2pB1QqR/2P1qQQR/1pN3B1/7p/1N1Q2nP/kqN3q1/1rn4B w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 Bc5 Nh3 Be7 Ng1 Bf8 Kd2 Ke7 Ke3 Ke6 Ke4 b5 g4 h5 c4 f6 a4 d6 a5 b3 a6 b2 g6 Rh7 c5 Ra7 g7 Ne7 g8N Ra8 g5 Qd7 a7 Ba6 g6 Rg7 Qd3 Nc8 Bg5 Qf7 Na3 b1Q Nf3 Qe7 Bg2 Qb2 Nd2 Nc6 Nb3 Nb4 Nc2 Na2 e3 Rf7 g7 Nc1 c6 Rb8 a8Q d5+ Kf4 d4 e4 f5 Nf6 Qd6 g8Q Ne7 Nd7 Bc8 Qg6+ Rf6 Qa3 Qd5 Qf1 d3 Qf3 d2 Qd3 Qb1 Qb2 d1Q Ra3 Qg1 Ra2 Ng8 Qbd4 Nh6 Ndc5+ Ke7 e6 Kd6 e7 Qb2 e8B Be7 Bd7 Bd8 Ra4 Ra8 Rb4 Ra1 Q4c3 Rb1 e5+ Ke7 e6 Kd6 Bf3 Rf8 Qcf6 Qgd4+ Be4 Q5c4 e7+ Qe6 Qf3 Qg1 e8Q Qgd4 Qef7 Qe5+ Ke3 f4+ Kd2 Nf5 Qd3+ Qed4 Bg2 f3 Rc4 Qd5 Rh4 f2 Be4 f1Q Bg2 Qa3 Kc3 Qb2+ Kb4 Ng3 Ka5 Qdd4 Bf3 Qg2 Bd5 Bb7 Be4 Ba8 Ka6 Bb7+ Ka7 Bc8 Bd5 Qdc3 Kb8 Qe5 h3 Qed4 Rf1 Qdc3 Qh8 Qg7 Rf6 Ke5 Qgh7 Kd6 Rh6 Ke5 Qhg6 Kd6 Rf4 h4 Rh7 Ke5 Rf6 Qf3 Qh6 Qg8 Na5 Qf2 Bh1 Qg2 Nab3 Qg6 Nbd4 Kd5 Qh5 Qg8 Rfh6 Qg6 Qhf6 Qg7 Qe3 Kc4 Qhg6 Qb3 Qe2+ Kc3 Qd2+ Kb2 Qdd3 Qc3 Ndb3 Ka2 Qd6 Qa1 Qdd3 Qb2
5q2/2b1Qr1p/1b6/k2NRR1P/n1bpp3/B2NPQn1/BN1R2K1/rQ1Nqb2 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 Kf2 a5 c4 e5 h4 f5 g4 d5 b4 Kd7 b6 Kc6 b7 Kb6 c5+ Kb5 c6 f4 e3+ d3 c7 f3 h5 a4 g6 d4 g7 e4 g5 a3 g6 a2 Nh3 Qe7 Nc3+ Kb6 b5 d2 Bc4 Ra7 Rh2 Qa3 Nf4 Ra4 Nd3 Qb4 Ba3 Nd7 b8Q+ Bb7 c8N+ Ka5 b6 Qb3 Nd6 Qb4 Qd8 Ne7 g8N Bd5 g7 Nc5 Nf6 Nf5 g8R Ng3 Rg5 Bg8 Kg1 f2+ Kg2 Bg7 Qg4 d1Q Nfd5 Be5 Qf3 Qe1 Qe7 Bf7 b7 Rf8 Rb1 a1B Nd1 Bc3 b8Q Bd2 Ba2 f1B+ Kg1 Be6 Rf5 Rf7 Ra1 Bc3 Rd2 Bf4 Ne8 Bc7 Nd6 Qb7 Rc1 Qc8 Qb1 Qf8 Rcc2 Rc4 Rb2 Na4 Rb8 Bb4 Re8 Rc1 Kh2 Bc5 Nc4+ Ka6 Ncb2 B5b6 N5f4 Bc4 Nd5 Be2 Kg2 Ka5 Qc2 Ra1 Qb1 Nc5 Qd8 Na4 Ree5 Bc5 Qe8 B5b6 Qe7 Bf1+
5R1B/pK4p1/n1NqN1Pr/b1QB2n1/R4n2/2Rp1r2/bp1Pk1NR/2Q3qB w - - 0 1 illegal: No proof kernel
2nr2RQ/r2B1p1K/3B3b/1qpB3Q/1pRbp3/1PP3B1/N4Nk1/n3QbqN w - - 0 1 illegal: No proof kernel
1n1R4/rn1p4/BRR3p1/1N1PNpBq/nK2Q1P1/1br4R/3b1kNp/Q1Q1q3 w - - 0 1 illegal: No proof kernel
3B1b1N/Qp2p2r/8/rn1BB1p1/3qb3/k1N1Pbqp/1R1N1KQP/2nRR2N w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 gxf5 Ra4 Nh3 Ra5 Ng1 Ra8 f4 Kd7 a4 Kd6 d4 g5 f6 c5 f5 h5 a5 c4 a6 b3 f7 c3 f6 b2 e3 c2 a7 h4 Qd2 h3 Kf2 Bf5 Ra2 Nc6 Bc4 Nh6 Nc3 b1B Bb2 c1Q Nge2 Na5 Ng3 Rh7 Re1 Qd7 Nh1 Bg7 f8N Qb5 f7 Qb3 Ng6 Rb8 f8N Bbe4 a8Q Qb5 Nh8 Bg6 Ne6 Bf3 Qa7 Bge4 Nc5 Qa4 Nb3 Bf8 Ba1 Qc2 Rb2 Nf5 Qe2 Qb4 Nd2 Nb3 Qf1 Re8 Qg2 Nc1 Ba2 Ra8 Bc4 Kd7 d6 Kc6 d7 Nd6 d8B Nb5 d5+ Kd6 Bb3 Qd4 Ba2 Qcd3 Bc4 Qe5 Ba2 Qdd4 Bb3 Kd7 d6 Kc6 d7 Qc7 Bd5+ Kd6 Qb8 Ra5 Qa8 Kc5 Qa7+ Qb6 Bc7 Qe5 d8R Qf4 Rd7 Qe5 Bd8 Qf4 Nb3+ Kb4 Nd2+ Ka3 Ncb1+ Ka4 Rb3 Bh5+ Nf3 Bg4 Bc4 Nc7 Rdd1 Qe5 Nfd2 Nb5 Bd5 Bgf3 Bb2 Qf4 Be5 Qd4 Rb2 Qg4 Nc3+ Ka3 Bb6 Qf4 Bd8 Qg3+
1bq2QN1/Qb4q1/3B1p1p/K2R1n1n/1rp1pRR1/3BP1Nr/b3NP2/k3BR2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 b4 Kd7 g4 Kd6 d4 e5 Kd2 c5 Kc3 a5 b6 a4 g5 a3 b5 a2 e3 c4 Kb4 f6 b7 e4 g6 h3 b6 h6 g7 h2 Bd3 Na6+ Ka5 Ne7 b8Q+ Nc7+ Qa7 Ne8 g8N Ng7 Nc3 Nh5 Bd2 Bb7 Be1 Qc8 Nce2 Rb8 Ng3 Nf5 N1e2 Be7 Rb1 a1Q+ Qa4 Qb2 Qe8 Bd8 Rf1 h1B Qf8+ Be7 Rd1 Bf3 Rb1 Qc1 Rb5 Rh7 Rc5 Rg7 Rb5 Rg4 Rc5 Rh4 Rb5 Kd7 d6 Kc6 d7 Rh3 d8R Bd6 Rd7 Qd1 Rg7 Bc7 Re5 Bd6 d5+ Kc5 Rg4 Qd2+ Nc3 Bd1 Rf4 Qc1 Nce2 Bb3 Re7 Qb2 Rg7 Ba2 Rgg4 Qe5 Ne7 Bc7 Ng8+ Qe7 d6 Qg7 d7+ Bd6 d8R Ba8 Nc3 Rb7 Ka6 Kb4 Nce2+ Ka3 Ka5 Kb2 Rd7 Bb8 Rd5 Re7 b7 Ka1 Kb6 Re6+ Kb5 Rb6+ Ka5 Bd6 b8B Bb7 Bc7 Be5 Bd6 Rb4 Be7 Bb8 Bc5 Ba6 Bd6 Bb7
kBqNQ1nQ/2bp2NR/1r1p4/2p3pn/5BnN/3K2P1/Bn1Pr1b1/1B2QR2 w - - 0 1 illegal: No proof kernel
6K1/R1N1pqB1/r4Q1q/3p1B2/1rNPQQ1p/B1k1p2P/1n2b2p/b1nQ1N1R w - - 0 1 illegal: Other
Bn1Q3R/q5r1/N1QBqN1r/pQp3bp/2P2R2/R2K1p2/3p1P2/n1k1Nb1R w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 Kd2 Ke7 e4 Ke6 b4 f5 g4 a5 c4 d5 g5 h5 g6 c5 b6 h3 b5 h2 b7 d4 g7 d3 b6 f4 Bg2 Qd4 Nc3 Qd6 Ra3 Rh7 Nf3 Rh8 Ne1 Nf6 g8R Ng4 Nd5 Be7 Rf8 Ne3 Nf6 Nd7 b8N Rh6 b7 Nc2 Na6 Na1 b8Q Ra7 Qb5 Nb8 Qc6 Bb7 Qb3 Bc8 Qbb5 Bd8 Kc3 Rg7 Be3 d2 Bd4 Ke7 Kd3 Bh3 e6 Qc7 e5 Qa7 Bd5 f3 Be3 Bg2 Bf4 Bh3 Qc8 Bg2 Ba8 Bh3 Qcc6 Bg2 Rg1 h1Q Bg3 Qh3 Rh1 Rgh7 Nd7 Qg4 Rf4 Rg7 Nf6 Bf1+ Kc3 Kf8 e7+ Kf7 e8R Kg6 e6 Kg5 e7 Qe6 Rh8 Kg6 Rg4+ Kf5 e8Q Be7 Rf4+ Ke5 Nd5 Bh4 Qd8 Bg5 Rf5+ Ke4 Bd6 Nb3 Kc2 Kd4 Nf6 Na1+ Kb1 Nb3 Rf4+ Kc3 Nc2 Kd3 Ne1+ Ke2 Kc2 Na1+ Kb2 Kd1 Kc3 Bg2 Kd3 Kc1 Bb7 Bh3 Ba8 Bf1+
1n1R1RB1/1Q1BrQ2/1N3Kp1/1qbB1pPp/1rb3n1/4pP2/4p1QN/2k1Bq1R w - - 0 1 illegal: No proof kernel
b3R3/nRq1P3/1r1N4/2B1P3/1RQRRN1n/1q4b1/RN1nB3/3nkr1K w - - 0 1 legal: proof: b4 b5 f4 d5 g4 c5 bxc5 h5 gxh5 a5 c4 e5 cxd5 b4 fxe5 Bg4 a3 Bd7 axb4 axb4 c6 Bc8 Kf2 Ke7 Kg2 f5 e4 g5 d4 g4 h4 g3 c7 b3 d6+ Ke6 d5+ Kd7 e6+ Ke8 h6 f4 e7 Kd7 h5 b2 h7 Nf6 h6 Nc6 e5 Rb8 Qd4 Na7 Be3 Rb5 Ra2 Ne4 Na3 b1Q Nc4 Qb3 Rh4 f3+ Kh1 f2 Ne2 Rb6 Nb2 Nc3 Qc4 Bb7 c8N Ba8 Bc5 Qc7 Re4 Nd1 Nf4 Bg7 Be2 Rf8 h8R f1N h7 Bh6 Rg8 Nd2 h8R Bg5 Rh6 Bh4 Rg4 Rf6 Rh8 Rf5 Re8 g2+ Kh2 g1N Kh1 Rf6 Nh5 Rf1 Qb5+ Nc6 Re3 Ndf3 Rb4 Rb7 Ree4 Rb8 Qd3 Na7 Nf4 Qa3 Rg8 Bg3 Rg6 Nh4 Qa6 Ke8 d7+ Kf7 d8R Qb3 d6 Rb7 d7 Ngf3+ Bg1 Rb8 Rgb6 Kg7 Qd3 Nd2 Qc4 Kh7 R6b5 Kh6 Re8 Kg5 d8R Kf5 Rdd5 Kg5 Nd6 Rb7 Bd3 Kg4 Rb6 Kf3 R6b5 Re1 Bf1 Rb8 Bc5 Rb7 Rdd4 Kf2 Rf8 Re2 Re8 Ke1 Rb6 Re3 Be2 Rf3 Rc6 Rb5 Rb6 Rf2 Rbb8 Rb6 Rb7 Rf1+
NqRb1RQN/8/B1brqPbp/8/N2N2nP/p2RK2B/6N1/1n1N1k2 w - - 0 1 legal: proof: d4 c5 g4 e5 dxe5 b5 b4 Qh4 bxc5 Kd8 a4 Ke8 axb5 Qd8 f4 a5 g5 Ra6 bxa6 f5 gxf6 g6 f5 g5 Bf4 gxf4 Kd2 Kf7 c4 d5 e4 d4 h4 d3 e6+ Ke8 a7 h6 a8N f3 e5 a4 c6 f2 e7 Kf7 e8N a3 c5 Qd4 c7 Ba6 c8B Bg7 e6+ Kf8 c6 Qe4 f7 Ke7 f8R Nd7 c7 Qc6 Ke3 d2 Qb3 d1Q Bh3 f1B Nf6 Kd6 e7 Kc5 e8N Bb7 Nd5 Ne5 Nf4 Bd3 Ng2 Bf6 Nd6 Bd8 f6 Ne7 Nf7 Bg6 Nc3 Qe6 Nge2 Bc6 Rc1 Qdd6 Rhd1 Rg8 Qb8 Kc4 Nd4 Rg7 Nh8 Nd5+ Ke2 Qb4 Rd3 Rd7 Nd1+ Nc3+ Ke3 Rd6 Ba6+ Qb5 Nc2 Nb1 c8N Kc5 Nd4+ Kd5 Ke2 Ke4 Ncb6 Qbb3 Na4 Qb7 Qc8 Qb8 Nge3 Kf4 Rc5 Kg3 Ng2+ Kh2 Ke3 Kg1 Rcc3 Kf1 Rc2 Qa2 Qe6 Qab3 Qg8 Qe6 Rc5 Bb5 Rc7 Bc6 Rc8 Ng4+
2RB3N/Pnq2Np1/2pB1K2/8/n4QRR/1B1kp3/B2PrbpB/2B2q2 w - - 0 1 illegal: Other
1kn3N1/R1rnqb1K/2Q4P/q1B1R1B1/1b2P1R1/bn6/1RR2RN1/1q1r3N w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 d5 gxf5 d4 Bh3 d3 Bg4 hxg4 cxd3 Qe7 d4 Qg5 d5 Qd8 Kf2 Kd7 Ke3 c5 Kf4 Kc7 h4 a5 d4 a4 e4 g6 b4 a3 e6 a2 d6+ Kb7 b6 c4 e7 c3 Kg5 g3 b5 c2 d7 g2 f6 Ra7 e8R Bg7 h5 Rh6 d5 Na6 d6 Nc7 Qd5+ Kb8 b7 Ra4 Ba3 c1B+ Nd2 Bf8 Nh3 g1N Qc6 Qe7 d8B Ka7 b8N Na8 d7 Qc5+ Re5 Qd4 f7 Qb4 Nf2 Ne2 Rh4 Nf6 Rg4 Rh7 h6 Qe7 Bc5+ Nb6 Nh1 Ba3 Nc4 Nd4 Ne3 Nb3 Ng2 Rd4 Rc1 a1Q Rc2 Bg7 f8R Rd1 Rf7 Bf8 Rg7 Bb7 Rf7 Ka8 Rg7 Nc8 b6 Qc3 Rf2 Qa5 Rc2 Qf7 Bde7 Qe6 d8R Nd7 Rf7 Rg7 Rff2 Rf7 Bf6 Bd6 Rh8 Qe7 Rh7 Bb4 Na6 Ba3 Nc7+ Kb8 Nd5 Ba6 b7 Bc4 Bb6 Bdb4 Bc5 Qe8 Bd8 Qe7+ Nf6 Rg7 Rb2 Bf7 Rbc2 Qe8 Ng8 Qe7+ Kf4 g5+ Kf5 Bc4 Ne3 Rf7+ Kg6 Be6 Ng2 Bc4 Rh4 g4 Rg7 g3 Rg4 Rf4 Kh7 Bf7 Be3 Rf6 Bg5 Re6 Bb6 Red6 Bc5 Rf6 Qd5 Rc6 Qd6+ Rc7 Qc6 Bc4 Rgf7 Bd5 Rg7 Bf7 Rg6 Nd2 Ne3 g2 Nf1 g1Q Qb5 Rc1 Ne3 Bc3 Ng2 Qd1 Rb6 Ka7 b8R Qf1 Qc6 Qfb5 Kg7 Qb1 Kh7 Rd1 R8b7+ Ka8 Rb3 Bcb4 Ra7+ Kb8 Rbb2 Nb3
8/2Qn1r2/n2bBBP1/bqBRBrBk/3nn3/r6K/BnN4P/4NR1R w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 h5 gxh5 g5 c4 d5 cxd5 b5 axb5 Bg4 Ra2 Bf5 Ra1 Bg6 hxg6 Bb4 Na3 Bc5 Nb1 Bf8 Kf2 f5 Kg2 c5 e4 a5 b4 a4 d4 c4 b6 f3+ Kg3 c3 b7 c2 d6 f2 d7+ Ke7 b5 Kf6 d5 f4+ Kg2 g4 b6 Kg5 d6 g3 e5 a3 e6 a2 e7 Na6 b8B Nf6 e8B Rh5 b7 Qb6 d8B Qb5 d7 Bd6 Bd3 f1N Bf5 Nd2 Bf7 Ne4 Ba7 Kh4 Bg4 Rf5 b8B Kg5 Kh3 g2 Bb2 c1N Na3 f3 Nc2 f2 Bc5 f1R Nf3+ Kh6 Qe1 g1B Qc3 Nd3 Nfe1 Kg5 Rb1 a1N Ba2 Nb3 Be7 Ra7 d8R Nd4 Qa5 Be3 Qc7 Bd2 Bc3 Kh6 Ra1 Nd7 Bg5+ Kg7 Bb2 Ba5 Rd1 Rf7 Bge6 R1f5 Ba1 Nb2 Rf8 Re7 Rf6 Rf7 Rd2 Re5 Rff1 Ref5 Rd1 Nf3 Rd5 Nd4 Bd8 Kh6 Be7 Nd3 Bg5+ Kh5 Bb2 Ne2 Bc3 Nb2 Bcf6 Nd4 Qc6 Be7 Bbe5 Bd6 Qc7 Bb6 Kg2 Nab8 Bd8 Ra3 Bde7 Ba5 B7f6 Nc3 Kg3 Na6 Kh3 Ne4+
KB5k/r1q4B/1qR5/NRbP1nqr/Qq2P2R/3b1RRb/2N1N2R/n7 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 g5 Kf3 f5 h4 Kf7 d4 Kg7 h6+ Kh7 a6 c5 d6 c4 a7 c3 h5 c2 b6 Be6 d7 Ba3 b7 Ba2 Rh3 Be6 Rg3 Bc5 Ra3 Na6 b8R Qa5 d8N Qd2 Rb5 Nb4 Nb7 Rb8 a8R Ne7 Na5 Rb7 Rc8 Bd7 Bb2 c1Q Qa4 Nc2 Rc6 Na1 d5 Qb4 Be5 Be6 Bb8 Qc2 Re3 g4+ Kf2 f3 Na3 Qcb1 Nc2 f4 Bh3 Kg8 h7+ Kg7 Bg2 Bf5 Bh3 Bd3 Bf1 Nf5 Bh3 Re8 h8R Re5 Rh7+ Kg8 h6 Qc1 Re7 Qcb1 h7+ Kh8 Ree6 Q1b3 Rh6 Qb2 Rh4 Q2d4 Kf1 f2 Ref3 Qdc4 Kg2 f1Q+ Kh2 Qfe1 e4 Qe3 Ne2 Qc1 Rbb6 Qa6 Rb5 Qb6 Kg2 Nd4 Kf2 Rh5 Rg2 Qc7 Rh2 Qcb2 Rg3 f3 Ke3 f2 Rf3 g3 Bf5 Kg7 h8R f1B Bh7 Bh3 Rhf8 g2 Rg3+ Rg5 Rff4 Kh8 Rff3 Re5 Kf4 Rh5+ Ke3 Qb6 Kf4 Q2c3 Ke3 Qcc4 Kf4 Nf5 Ke5 g1Q Ke6 Qd8 Ke5 Qg5 Ke6 Rb6 Kd7 Rb7+ Kc8 Qcc3 Bd6 Re7 Kb8 Rb7+ Ka8 Qcg7 Bb8 Qc7 Rd6 Qgd4 Rg6 Qdf6 Rh6 Qfb6 Rc6 Ra7+
4Q1qN/qBr1P3/r1P2nK1/3k1B2/3bN1b1/B1BB4/q2R3B/1Rn1q1Rn w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 axb5 e4 d4 cxd4 f3 Ba3 fxe4 Be7 e5 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 d6 c4 g4 h6 g3 b6 g2 h7 f6 a6 d3 h5 d2 h6 Ra7 c5 Qc7 c6 Be7 b7 Qd8 Ba3 Bf8 Nc3 Qd7 Nf3 g1Q Qe1 d1N Nh4 Ra8 a7 Bg7 Ng6 Na6 b8B Nb4 Rb1 Nd3 e3 Nc1 Bd3 Qh2 Rg1 Qa2 Kf4 d5 e4 f5 Kg5 f4 Kh5 Kf7 e6+ Kf6 e7 Ke6 e8B d4 e5 f3 Kg5 f2 Ne4 Kd5 e6 f1Q Bh2 Qfg2+ Kf5 Qe7 Bd7 Nf6 Qe2 Re8 h8B Nf2 h7 Nh1 Qh5 Qf7 e7 Qgf2+ Kg5 Qg8 Bg4 Be6 Bf5 Rac8 a8B Rc7 Bb7 Ra8 Ne5 Bd7 Qe8 Ra6 Kg6 Qe3 Nf7 Qe1 Be2 d3 Bf1 d2 Bd3 Bh6+ Bg7 d1Q h8R Be3 Rh5 Qdc2 Nh8 Qa4 Rhg5 Be6 R5g2 Bd4 Rd2 Qa5 Nc5 Qb6 Ne4 Qa7 Rg3 Nd7 Rg1 Be3 Bg4 Bc5 Bf3 Bh3 Bg4 Bf2 Bf5 Bg4 Kh6 Bb6 Bd4 Nf6 Bc3 Qf7 Kg5 Bd4 Kh6 Qf8+ Kg6 Qg8+
1R1r4/r5nk/Rq2R2P/2NNR2b/1N6/R3b1np/P1n2b1B/1QKR1qB1 w - - 0 1 legal: proof: e4 d5 g4 a5 b4 f5 bxa5 d4 exf5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g5 h6 gxh6 g6 h7 Ra6 Qg4 Ra7 Qd1 Ra8 h4 Bg7 h5 Nf6 h6 Bf8 Be2 Ng8 Bh5 gxh5 d4 Kf7 Kd2 c5 f4 b5 a6 e5 d6 b4 a7 h4 d5 h3 f6 Kg6 f7 b3 d7 e4 d6 c4 f5+ Kg5 f6 Kg6 Nc3 b2 Nge2 b1Q Ng3 Ba6 Re1 Qbb6 Nd5 Qe8 d8N Be7 f8B Nc6 f7 Bf6 d7 Nd4 Bd6 Qf8 Nc6 Ne7 d8R Nc2 Re8 Bd4 Ncb4 Nf5 Re5 Ng7 Re3 Bc8 Ra3 Bg4 Qf1 Rg8 h8R Bh5 Bc5 Rd8 a8R Rd7 R8a6 Ra7 Bb2 c3+ Kc1 e3 Ne4 e2 Bd6 e1B Nc5 Bef2 Qb5 Qe8 f8R Qf7 Rb8 Rd8 Rhe8 Kh7 R8e6 Qf3 Rf5 Qd3 Bh2 Qe2 Qd3 Qf1+ Qd1 Ne3 Rfe5 c2 Kd2 c1N Bc3 Ne2 Qb1+ Nc2 Bg1 Ng3 Bh2 Qg2 Kc1 Rad7 Bd2 Ra7 Be3 Be1 Bf2 Qf1 Bfg1 Bef2+ Kd2 Qbb5 Qb3 Qfc4 Rd1 Qf1 Kc1 Qb6 Qb1 Bde3+
1Q4rr/NNPqRBkb/B1pn4/n1N3K1/2b2nR1/2NP4/3q4/1NN3Br w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 g5 e4 d5 exf5 d4 h4 gxh4 b6 d3 b7 c6 b5 Qd5 b6 Bh6 cxd3 Bg7 d4 Qd8 d5 Bf6 Ra6 Be5 Ra1 Bc7 bxc7 Qd7 Qf3 Qd6 Qd1 Qd8 Ke2 Kf8 Kf3 e5 Kg4 a5 f4 a4 d6 a3 d7 h3 f6 h5+ Kg5 h4 g4 a2 f5 e4 Qb3 h2 Ne2 e3 Rg1 h1N Nec3 h3 Ba6 h2 d3 e2 Be3 Qe8 d8N e1R f7 Nd7 b8N Ne5 Nd7+ Kg7 f8N Rh7 f6+ Kh8 f7 Ne7 Ng6+ Kg7 f8N Rh8 Qb8 Rg8 Nb7 Nf5 Nb6 Nd6 Nf4 Nf2 Nfe2 h1B Nfd7 Nec4 Nc1 Be4 Ndc5 Be6 Nc8 Qd7 Na7 Na5 Rg3 Bh7 Rg2 Nh1 Bg1 Ng3 Re2 Bf7 Re7 Rf1 Kh4 Ne2 g5 Nf4 g6 Rd1 Kg5 Re1 Nd2 Rf1 Rb1 a1Q Rb4 Qb2 Ndb1 Ne2 Rh4 Nf4 Rg4 Qd2 Kh4 Kf6 g7 Rh8 g8B Bc4 Bh2 Rh1 Bf7 Nh3 Bg1 Rg8 Rf4+ Kg7 Kh5 Rh8 Rh4 Nf4+ Kg5 Rg8 Rg4 Rh8 Qd8 Qe6 Qd7 Rae8 Qd8 Reg8 Qb8 Qd7
1N1R1NqN/2NK1n2/2B3Pb/r1pn2k1/1N1Q1qq1/1P4n1/2R3bB/1R4nN w - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 c5 Kf3 h5 Ke4 e5 d4 Ke7 b6 h4 g7 f3 b3 f2 g6 Kf6 b7 h3 d6 a4 Kd5 e4 d7 e3 Ra2 e2 Bg2 e1Q Na3 f1N Bf4 h2 Ne2 Rh4 Rc2 Na6 Kc6 Qg3 b8N Qf3+ d5 Nc7 Ng3 Ba6 Nb5 Qg4 d6 Nh6 g8R Nd5 Nc7 a3 Rg1 a2 Nh1 Qc8 d8N a1Q d7 Qd4 Nf7 Nd2 d8N Bf1 Nh8 Nf3 Be5+ Kg5 f6 Qc4 f7 Qcf4 Qd4 Bg7 f8N Nf7 Bd6 Bh6 Be5 Ba6 Ra1 Bf1 Rb1 Ng1 Be4 Bg2 Bd6 Qe2 Be5 Qc4 Bd6 Qh3 Be5 Qhf3 Kd7 Qd1 Ndc6 Qde2 Nf2 h1N Nb4 Ng3 Nh1 Qh5 Bf3 Qhg4+ Nfe6+ Kf5 Rd8 Rh2 Nf8 Kg5+ Ke8 Nc3 Bb7 Nd5 Bc6 Ne4 Nbd7 Ne7 Bg7 Qe5 Qd5 Bf1 Qd1 Qa1 Be5 Nd5 Rcc1 Ra2 Bg3 Ra5 Rc2 Qg7 Bh2 Ng3 Nb8 Bg2 Qd3 Qcf4 Qd4 Qe2+ Kd7 Qg8 Qd3 Qd1 Qd4 Qdg4+
3q4/N4b1R/1knR1PB1/1N1p1Pbr/r3Rb1B/1R6/r3Qq2/K1RRb1B1 w - - 0 1 illegal: No possible last move, all moves rejected
K1NnBB2/Nn2RP2/1nn1B2R/rr6/1qp2Qq1/1P6/kr2R3/b1RR2R1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 b6 h5 b7 c5 d6 e5 Kd5 a5 f6 a4 b3 e4 d7 h4 g6 h3 g5 e3 g7 f3 g6 a3 Bb5 a2 Ne2 c4 Qf1 f2 Na3 h2 Ng3 e2 Ne4 e1R Nd6 Re6 Nc8 Re1 Bh6 Ra6 Rc1 Qe7 d8R a1Q Be8 Re2 Nb5 Nc6 b8R Rb2 Rd7 Nd8 Nba7+ Ka3 Ra8 Qe1 Re7 Ra5+ Kd6 Ka2 Kc7 Qd1 Kb8 Qg4 d5 Rh7 Re2 Ne7 g8B Bg7 d6 Bh8 Rg1 h1N d7 Ng3 g7 Ngf5 Be6 Nd6 g8R N6b7 Bf8 Rhh5 f7 Rhb5 Rg6 Qb1 Rh6 Qa1 Qg2 f1N Qh2 Ne3 Qf4 N3d5 Bf5 Ne6 d8R Nb6 Rdd1 Ned8 Be6 Qb1 Nc6 Qd3 Ra6 Qc3 N6a7 Na8 Rad6 Nb6 Rd7 Qb4 Rc7 Rc2 Rcd7 Ba1 Rc7 Rb2 Rcd7 Na4 Ka8 Nec6 Re7 Nb6+
2B5/2nN4/3P1r2/Bnq2NR1/pB1B1Rb1/n2bbBrk/K1P3p1/B2NQ3 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 a4 b5 axb5 c5 b3 c4 bxc4 exf4 cxd5 Be7 d6 Bf8 e4 Kd7 h4 Ke6 d4 g5 Kd2 a5 Kc3 f5 Kb3 f3 h6 f2 b6 a4+ Ka2 g4 b7 f4 d5+ Ke5 h7 f3 d7 g3 d6 g2 h5 Ra7 h6 Bg7 Ba3 Kf4 e5 Kg3 e6 Qa5 d8B Bf8 e7 Qa6 e8B Kg4 Ba5 Qb6 Bc6 Qc5 Rh5 Na6 b8N Ne7 B3b4 Rg8 h8B Nd5 h7 Bh6 Ne2 Ndc7 Bd4 Nb5 h8B Nac7 Rg5+ Kh3 Nbc3 Bg4 Nd7 Rf8 Qe1 Rf6 Nd1 Rb7 Rf5 Be3 Ng3 Ra7 Bd3 f1N Rg5 f2 Nf5 Nd2 Bf3 f1B Bc4 Be2 Be6 Bd3 Rb1 Nc4 Ba1 Rh6 Bhd4 Nca3 Rb3 Ra8 Rc3 Rg8 Rc4 Qd5 Nb8 Rgg6 Bc8 Qc5 Nd7 Rf6 Bdc3 Rh7 Rf4 Rhh6 Bd4 Rh5 Rg7 Rg5 Rg6 Bh5 Rg7 Rg3 Rg5 Bg4
R1Q3B1/2P1b2p/3R4/rb1q4/NNR1b2p/3R1PB1/1K1nR2q/2RrN1rk w - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 axb5 c5 dxc5 a4 exf5 Nc6 Bb2 Qc7 Bc1 Na5 bxa5 Qd8 Kd2 Kf7 Kc3 Kf6 g4 Ke5 a6 Ke4 b6 e5 f6 d5 g5 a3 g6 a2 a7 d4+ Kb2 d3 c4 d2 g7 Rb8 a8R Qd5 b7 Bf5 c6 Qd6 c7 Qe6 c8R Bg6 c5 Qe8 c6 Be7 f7 Bb4 f8R Qe6 Nf3 Qd5 Ne1 Nf6 g8R Be7 Rh3 Bf5 Rce8 Rd8 Rg6 Rg8 b8N Rd6 Qb3 d1B c7 Be2 Na6 Bb5 Bc4 Rd8 Rh6 Rg1 Bf4 Rd6 Bg3 Rd7 Nd3 Kf3 Nc3 Kg2 Rc1 a1R Na4 e4 Nab4 e3 Qa2 Ne4 Rd6 Bg6 Rf4 e2 Rg4 Nd2 Ne1+ Kf1 Qb3 Be4 Qf3 Ra3 Qf5 Rd8 Qc8 Rd7 Ned3+ e1Q Ba2 Qd1 Ne1 Qf3 Rf4 Qg2 Bb3 Qh2 Bc4+ Qd3 Bg8 Qd5 Rg4 Bf3 Rgc4 Be4 Bf4 Ra1 Rd3 Ra3 f3 Kf2 Nec2 Kg2 Ne1+ Kh1 Bg3 Ra1 Re6 Rd6 Rd8 Ra6 Rdd6 Ra5 Re5 Bf5 Re2 Be4 R1c2 Rd1 R2c3 Qf5 Rc1 Qd5
1r2nNR1/2B3rb/1pbRR3/n1NRrk2/p1Q1R2P/K2R2n1/2PBB3/5b2 w - - 0 1 legal: proof: d4 f5 g4 h5 gxh5 c5 e4 cxd4 exf5 Nf6 a4 Ng8 a5 b6 a6 Qc7 Ke2 Rh7 Ke1 Qb7 axb7 Rh8 Qd2 a5 Qe2 e5 Qd1 a4 b3 Bb4+ Nd2 Ba5 b4 Kd8 bxa5 Ke7 Nb1 Ke8 Kd2 Kf7 h4 Kf6 f4 g5 a6 d5 h6 d3 Kc3 d2 Kb4 g4 a7 e4 h7 e3 Nh3 g3 Be2 d4 Re1 g2 Ka3 g1R Ng5 d3 Nc3 Rf1 Nce4+ Ke7 f6+ Kd7 f5 Rg1 f7 Nc6 f8R Rb8 a8R Na5 Ne6 Rg7 Re8 Nf6 N4c5+ Kd6 Re7 Ne8 f6 Ke5 f7 Kf5 Nf8 Bd7 Re6 Bc6 Ra6 Rhg8 h8B Rg5 Bf6 R8g7 Be5 Be4 Bc7 Bc6 Bf3 e2 Rb1 Be4 Rb4 Bc6 Rbe4 Rh5 Rg1 e1N Be2 Nf3 Qf1 d1B Rgg6 d2 Rd6 Rg5 Rge6 Rh5 Qf2 Rhg5 Qd4 Nh2 Qc4 Nf1 Rd3 Ng3 Red6 Ra8 b8R Rh5 Rbd8 Rb8 Rde6 Rhg5 R8d6 Rh5 Bf1 Bg4 Be2 d1B Bd2 Rhg5 Ra8 Bh5 Ra6 Bg6 Ra7 Bh7 Ra8 Rb7 Rad8 Rh5 Ng6 Rb8 f8R+ Rf7 Rg8 Rg7 Nf8 Rhg5 Bf3 Be2 Bh5 Bf1 Be2 Rd7 R6d4 Rd5 Rdd6 Re5 R4d5 Rg7
BRQ3b1/2RK1p1N/2P2q2/R1B4r/B1qb4/1nP4p/1BBNBk1n/1n5n w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 e5 f4 exf4 d4 b5 axb5 a4 dxc5 Ra5 bxa5 Be7 Nc3 Bd6 Nb1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 h4 a6 f3 g6 a3 b6 f2 b7 d6 a7 a2 a8B h3 g7 Rh4 c6 Kf6 Kd5 Kg6 e4 Kf6 Nf3 Nd7 b8B Nc5 Ba7 Nb3 Bc5 Rh5+ Ng5 Nh6 g8R Nd2 Be2 Bg7 Bb2+ Kg6 Rh8 f1Q Qc1 Bf5 Nh7 Bd4 g5 Qf6 Rb8 Ng4 Rg1 Nh2 Rg4 Nc4 Nd2 Na3 Rg3 Nb1 Rc3 Kg7 g6 Kh6 g7 Bg6+ Kc4 d5+ Kb5 Q1f4 g8B Qg4 Nf8 Kg5 Nh7+ Kf4 Kb6 Bf5 Kc7 Qgh4 Rc4 Bg6 Kd7 Ke3 Ra4 Kf2 Ra5 Be3 Ra7 d4 Rc7 d3 Qf1+ Kg3 Qf5 Bd4 Qe6 Kg2 Qe8 Kf2 Qc8 Nc3 Rg1 a1N Re1 Nb3 Ra1 Nb1 Ra5 Qhf4 Ng5 Rh6 Bh7 Bh5 Bf5 Bg6 Nh7 Rh5 Be6 Nc1 Bb3 Q4h4 Ba4 Nb3 c3 Qhf4 e5 Q4h4 e6 Bf5 Nf8 Bh7 e7 Bg8 e8B Qe4 Nf1 d2 Nh7 d1N Nd2 Qg5 Kd6 Qd3 Bd7 Qc4 Bf5 Qf6+ Kd7 Ke1 Beg4 Nf2 Be2 Nh1 Bc2 Kf2
2n5/1kBB1Pb1/8/pN2Bn2/2Br2nn/nQp1B1K1/2B2NP1/b2rRRN1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 c4 dxc4 axb5 Qd3 Rh6 Qd6 Rh1 Qd8 Ra6 e5 Ra5 Qe7 Ra1 f4 f3 Bf5 exf5 e4 Kf2 e3+ Ke1 Qe4 fxe4 Bg7 Qb3 Bh6 Qd1 Bf8 d4 Kd8 b4 Kc8 d5 a5 b6 h5 b5 c5 f6 c3 d6 c2 f7 h4 g6 h3 g7 c4 e5 c3 e6 h2 d7+ Kb7 d8B f3 e7 e2 Kf2 e1N e8B Na6 Be3 c1B Na3 Ra7 Bc4 Nc7 Bd7 Rh4 Kg3 f2 Qb3 Ne7 g8B Nf3 Bh7 Rd4 Bc2 Bb2 Re1 Nc8 Bf6 Bh6 Be5 Ba1 Rf1 Nh4 Re1 Kb8 b7 Bg7 Rf1 Ra6 Re1 Ka7 b8B+ Kb7 b6 Nb5 Bbc7 f1N+ Kf2 Nd2 Kg3 Nbd6 Nb5 Nb1 Rf1 Ra7 Re1 Na3 Rf1 Ka6 b7 Rd1 b8N+ Kb7 Nc6 Ndf5+ Kf2 Ra6 Nb4 Rad6 Nd3 Rd4 Re1 Nh6 Kg3 Ng4 Nf2 Bf8 Ne2 Bg7 Rhf1 h1N+ Kh3 Ng3 Ng1 Nh6 Kh2 Ngf5 Kh3 Nfd6 Kh2 Ng4+ Kg3 Ndf5+
1R1b1R2/QR1K2bP/1b2pp2/R1rr3b/R2R3N/3P2Nn/1Bn3N1/2Bkr3 w - - 0 1 legal: proof: d4 d5 f4 g5 fxg5 b5 c4 b4 cxd5 b3 axb3 Qd6 b4 Qd7 b5 Qd8 g4 h5 g6 Qd6 g5 Qc6 Bh3 Qc4 Bg4 Qd3 exd3 hxg4 Kd2 Kd7 Kc3 Kd6 Kc4 c5 h4 a5 b4 e6 h5 g3 h6 a4 h7 g2 g7 a3 b6 a2 Kb5 c4 b7 c3 g6 c2 Nd2 Nf6 g8N Nfd7 g7 Nb6 Nh3 g1R Nf6 Be7 g8R Ra7 Nh5 Rf1 N3f4 N8d7 b8R Nf6 Nf3 Ra3 Ng3 Nc4 Rh4 Re1 Rb7 Ne3 Rf8 Rc3 Ng2 Nh5 Kb6 Rc5 b5 Bf6 Qe2 Rg8 Qf2 Rg5 Re4 Bd7 Nfh4 Bg7 Bb2 c1B Qg1 Ke7 d6+ Kf6 d5+ Re5 Rb4 Kg5 Ra4 Be8 d7 Nf4 d8R Kg4 d6 Nc2 d7 Be3 Bc1 Rcd5+ Kc6 Bb6 Rdb8 Bd8 Qa7 f6 b6 Bh5 Ra5 Nh3 Bb2 Bc7 d8R Rf5 Rd6 Bd8 Kd7 Rfe5 Ng6 Rc5 Rd4+ Kf3 N6h4+ Kf2 Rb1 a1B Bc1 R1e2 Rbb4 Re1 Rba4 Bc3 Bb2 Bd2 Bc1 Be3 Rf4+ Bf3 Ra8 Rb5 Rc7 Bc5 b7 Rg5 b8B Bb6 Rb7 Rbc5 Be5 Rf5 Rfe4 Bh5 Beb2 Rg5 Red4 Rgf5 Nf1 Ke2 Rab8 Kd1 Ng3 Rfd5+
8/2QNR2B/R1K2Br1/3bb1qr/1N1PrRR1/p2p1RB1/1P2p2R/k3br2 w - - 0 1 legal: proof: h4 d5 e4 b5 a4 g5 axb5 gxh4 c3 f5 exf5 d4 Be2 c5 Qb3 c4 Bf1 Nc6 Qa4 d3 Qd1 Nd4 cxd4 c3 Rh3 c2 Rh1 Nf6 Qg4 Ne4 Qd1 Nc3 dxc3 Ba6 Ne2 Bb7 Ng1 Bc8 Kd2 Kd7 Ke3 Kd6 Ke4 a5 f4 e5 g4 h5 b6 h3 c4 h2 c5+ Kc6 b7 Kb5 b8B Kb4 g5 Kb3 g6 a4 c6 h4 f6 h3 f5 Ra5 c7 Rd5 g7 Rb5 g8R Bd6 f7 Qf6 f8R Rh4+ Rg4 Be6 c8R Qg6 Na3 Bg8 Nf3 Rh5 Rc7 Qe8 f6 Rc5 f7 Qe7 Bg2 Rc6 Kd5 e4+ Bg5 e3 Qc1 Be5 Bf6 e2 Qf4 c1B Nc2 Bd2 Nb4 Be1 Ra2 Qe8 Re7 Qc8 Qc1 Qf5 Qc5 Re6 Qc7 Qg5 Kc5 Rh6 Kd5 Rg6 Ra1 Bd6+ Kc6 Re4 Ra2 Bdg3 Ne5 Bf4 Nd7 Be5 Rf1 h1R Rff4 h2 Rc8 Qh6 f8R Rf1 Rce8 h1R Rh7 Qh5 Ree7 Qg5 Rh2 Bc4 Bf3 Re3 Bd5 Re4 Bg8 Be6 Bh7 Bg8 Ra1 a3 Rc1 Bf7 Rc5 Be6 Ra5 Bg8 Ra6 Be6 Nd5 Ka2 Nb4+ Ka1 Rf3 Rh6 Rg8 Rh5 Rgf4 Rhg1 Rgg7 Qh6 Rgg3 Qg5 Rgg4 Bd5+ Kb6 Qh6 Rg5 Bb7 Rfh4 Bf4 Qc4 Rg4 Qc3 Bc1 Bg3 Bd5 Qc7 Bf4 Rf5 Bd6 R5f4 Rg6 Rhg4 Be5 Kb5 Qg5 Kc5 Bc4 Kc6 Bd5+
1k6/2b2pr1/r2R1pRq/P6r/pNBBB2B/Q4P1r/3B4/qK1NBR1q w - - 0 1 illegal: No proof kernel
R6Q/B2NkPn1/b2r4/1KB2P1r/1p1p3R/1pq1p1N1/b3BBB1/4B1Rn w - - 0 1 illegal: No proof kernel
2Q1B1Nk/n2rpp1N/1N5R/1pp2RB1/B1N3NP/K1r2q2/3n1P2/4Nrb1 w - - 0 1 legal: proof: c4 b5 e4 a6 b4 Nf6 cxb5 Ng8 b6 Nf6 b5 axb5 Qg4 Ng8 Qh5 Ra3 Qd1 Ra8 g4 h5 gxh5 d5 exd5 Ra4 b7 Rd4 bxc8B Rh4 Bb7 Ra4 Ba8 Ra7 d4 c5 Kd2 g5 Kc2 g4 Kb2 g3 a4 g2 a5 Qd7 h6 Na6 h7 Qb7 d6 Nh6 d7+ Kd8 d5 Ng8 Bg5 Bg7+ Ka3 Qb6 Bc6 Bd4 Be2 Nh6 Nf3 g1R Ne1 Bf6 Nd2 Rb7 Nc4 Nb4 a6 Nd3 a7 Rc7 a8N Rf8 h8N Rg8 Ng6 Qb7 Nf4 Nb2 Nh5 Qc8 Nab6 Bd4 Nf6 Rg6 Ng8 Ng4 h4 Re6 Rh3 Ne5 Rf3 Nbd3 Rf5 Rf1 Qc2 Be3 Bd1 Qb7 Qb1 Bd2 Ba4 Bf4 Qd1 Rf6 Qg4 Bh2 Ra2 Bg1 Re2 Ng6 Re6 Nge5 Rd6 Rg6 Rdf6 Rg7 Rh6 Nc1 Qh3 Qa8 Qg4 Ra7 Qh3 Nb3 Qg4 Kc7 d8N Rg6 Bd7 Nc6 Be8 Re6 Qh3 Re3 Qg4 Rc3 d6+ Kb8 d7 Kc7 Qh3 Rb7 Qg4 Na7 Ne6+ Kc6 Nf8+ Kc7 Qh5 Kd8 Qg4 Rc7 Nh7 Qf3 Qh3 Bh2 Re5 Rb7 Qf5 Kc7 d8N Bg1 Nd7 Kc8 Rd5 Rc7 Nc6 Rb7 N6e5 Kd8 Ng4 Rc7 Re5 Rb7 Ndb6 Rc7 Bd7 Rb7 Bc8 Ke8 Qe6 Rc7 Rf5 Rb7 Nhf6+ Kf8 Bd7 Kg7 Nh7 Kh8 Be8 Rc7 Qc6 Rd7 Qc8 Nd2+
2q1B3/rBb4P/2P1R1rN/pRB3pK/3R1Q2/p3rqB1/N1p1B3/1b2B1k1 w - - 0 1 legal: proof: d4 b5 a4 bxa4 g4 h5 gxh5 c5 b4 e5 c4 Qe7 f4 Qd8 fxe5 Ne7 b5 Na6 b6 Nf5 Ba3 Nd6 Bc1 Nb5 cxb5 c4 Nh3 Qe7 Ng1 Nc5 dxc5 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 g5 e4 a5 h4 d5 h6 f5+ Kh5 d4 h7 f4 b7 a3 b8B f3 b6 f2 b7 c3 Be2 f1Q Qa4 c2 Be3 d3 Nf3 d2 Nd4+ Kf7 e6+ Kf6 e5+ Ke7 Nc3 d1R Na2 Qf5 Re1 Rd3 Rad1 Rg8 h8B Qd7 c6 Qe4 Nf5+ Kd8 e7+ Ke8 Nh6 Qb4 Bc5 Qb3 Qf4 Re3 Rd4 Qf5 Bc7 Qc3 b8R Ra7 Rb5 Be6 Qf2 Qf4 Re4 Bc8 Rd1 Qh2 Nf5 Kf7 e8B+ Ke6 Kg4 Rd3 h5 Kd5 h6 Be7 h7 Be6 Bd7 Rg6 Nc1 Rd2 Bc8 Bg8 e6 Bd6 e7 Rd3 e8B Qf6 Qh4 Qh3+ Kh5 Qe6 Bc3 Qf3+ Qg4 Be5 Bb7 Qc8 Nh6 Bh2 B7e5 Be6 Bed4 Bc7 Bf2 Bf7 Bce1 Bg8 Rc4 Ke5 Rf4 Ba2 Bg3 Bb1 Na2 Rc3 Rd6 Rd3 Re6+ Kd5 Bd4+ Kc4 Bd1 Re3 Bc5+ Kd3 Ra4 Re4 Rd4+ Ke3 Be2 Re5 Bh2 Re4 Beb4 Kf2 Bg3+ Kg1 Bbe1 Qf4 Qf5 Re3 Qf6 Qe4 Qf4 Qf3+
2R2nR1/2RQNk2/K1n2Bb1/R1b5/rnR1R2P/P5n1/r1N1rq2/n1q2BN1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 b5 Kd3 c5 f4 g5 h4 e5 d6 g4 d7+ Kf7 f6 b3 a3 b2 f5 g3 h6 g2 h7 b4 Kc4 b3 Kb5 c4 d4 e4 d5 c3 d6 c2 Bg5 c1N Nd2 b1R Ndf3 b2 Ne1 e3 Nc2 e2 Qd4 Qc7 d8R e1Q d7 Nd3 Re8 Bc5 d8R Qf2 Rd5 Nd7 Re4 Ra4 Rde5 Re1 Rc1 Nf8 Qd7+ Ne7 Rh3 Rg8 h8R Rg7 Rg8 Nb4 Rc3 b1N Rcc4 Nd2 Rd5 Nb3 Rde5 Bb6 Rec5 Qcf4 Rc7 Bb7 Rd1 Be3 Rd5 Na1 Rdc5 Bd5 Kb6 Be6 Kb7 Re2 Ra5 Nd5 Ka6 Bc5 Bh6 Rg3 Bg7 Qc1 Bh8 Rb3 Bg7 Rb2 Bh8 Nh7 Rgc8 Nf8 Bg7 Kg8 f7+ Kh7 f6 Nfg6 f8R Bf5 f7 Ra2 Re3 Nc6 Rg8 Bd3 Nf3 Ndb4+ Kb5 Bf5 Bf6 Kh6 f8N Be4 Ne6 Nf8 Ng7 Bf5 Ree4 Kg6 Be7 Kf7 Bg5+ Ne7 Bf6 Bg6 Nf5 g1N Nh2 Re1 Nf3 Ne2 Ng1 Ng3 Qd1 Nd3 Ka6 Re2 Qd2 Nd7 Qd1 Nc6 Ne7 Nf8 Qd2 Nb2 Qd6 Nd3 Qd7 Ndb4+
Q6N/N4b1n/B2rP1qN/2B1r1q1/2rNN3/2b1BR2/k1n2PRq/1rK1Nr2 w - - 0 1 illegal: No proof kernel
R2rk3/4b2q/2n1P2b/1BR3n1/B2P1BQr/K2R4/NR4Rn/NnRbq1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 g4 c5 b4 h5 e5 a5 g6 c4 g5 c3 d6 h4 d7+ Ke7 g7 f3 g6 h3 b6 a4 b5 f4 b7 a3 b6 h2 Ne2 c2 Nec3 a2 Bb5 Ra4 Na3 Nc6 b8R Nf6 g8R Bh6 b7 Qe8 d8R Bg4 g7 Nh7 Rbc8 Ng5 b8R Rd4 d3 f2+ Kd2 f3 Qg1 Bh5 Qg4 Rb4 Rb1 a1B Rb2 Rf4 Re1 h1Q Na2 f1N+ Kc3 f2 Kb3 Nh2 Ra8 f1N Rd5 Rf8 Bf4 c1N+ Ka4 Nd2 Nc2 Qg6 Ka3 Ne2 Rc1 Ng1 d4 Rd8 Rc5 Qh7 Rc3 Q1e4 Rd3 Qe1 e6 Na5 Rc5 Nc6 Rb4 Bc3 Rb2 Ba5 Na1 Bb6 Rf8 Bc7 g8B Bd6 Rf7+ Ke8 Rg7 Bf8 Ba4 Be7 Bf7+ Kf8 Be8 Nb1+ Kb3 Ne5 Beb5 Nc6 Qf3 Ke8 Qg2 Nc3 Ka3 Bd1 Qg4 Bf6 Rb7 Be7 Rg2 Nb1+ Kb2 Bg7 Bc4 Qh6 Rbb3 Qg6 Bcb5 Rh4 Rb4 Bh6 Rbb3 Nd2 Ka3 Qh7 Rb2 Nb1+
r3r1k1/QbB1qR2/P6b/5nB1/3NbB2/1BqRBnN1/bB2nP2/1KNb4 w - - 0 1 illegal: No possible last move
3n1q1B/2n1rRN1/P2N3q/QN2b2b/Bb1qRN1k/P7/1NRr1K1b/b4N2 w - - 0 1 illegal: No possible last move
2NB2R1/rb1n1b2/nN2QR1K/bRq1r3/2qb1R2/1n4Pr/B3N1kP/4RR2 w - - 0 1 illegal: No proof kernel
n1R4R/1b2N3/B1R1B1Q1/n1b1R3/rR1qR3/2P2PK1/2rqbq1B/3nkN1b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 Kf7 b4 h5 g6+ Kf6 g7 Ke5 f3 a5 Kf2 d5 b6 h4 b7 d3 g5 Kd4 g6 e5 b5 h3 b6 d2 f6 e4 f7 h2 Nc3 e3+ Kg2 a4 Bd3 a3 Kg3 a2 Ba6 Ne7 g8B e2 g7 Nbc6 b8R Ke3 b7 d4 Qf1 d3 Qg2 Na5 Nd5+ Kd4 Ba3 d1B Rc1 a1Q Bd6 d2 Bf4 Ra7 Ra8 Rh5 b8R Bb7 Rc8 Rh6 Rab8 Rc6 Bd6 Qb6 Re8 Nc8 Re5 Qc5 Ne7 Kc3 Bc7 Qe3 Bd6 Ba8 Rb4 Nb6 Rbe4 Rc5 Rb1 Bb7 Rbb4 Na8 Bc7 e1N Bd6 Be2 Bb8 d1Q Bd6 Bd3 Ne2+ Kd2 Rf1 h1B Rg1 Qad4 c3 Nc2 Re1 Rc7 Rc5 Qc1 Rc6 Rd7 Kh4 Qa1 Bh2 Qc1 Nf5 Qf2+ Neg3 Qb6 Rec4 Nb3 Bb5 Ra4 Ba6 Na5 Re5 Be2 Rce4 Ke1 Kh3 Qb2 Nf1 Rd2 Qg6 Qbd4 Kg4 Bc5 f8R Qa2 Rfc8 Ne3+ Kf4 Rb2 Ne7 Nd1 Be6 Qfe3+ Kg3 Rd2 g8R Qc2 Rg7 Qcd3 Rf7 Rc2 Rff8 Qdd2 Rh8 Qf2+
q4b1q/r2N2QB/1B4n1/4NkN1/NRBr3P/1N3P1b/nnN3nr/KR4q1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 Kc2 d5 h4 e5 b4 a5 Kb2 g5 c5 a4 h6 e4 b6 d3 c6 e3 h7 e2 f3 e1R c7 d2 b7 g4 b5 d4 b6 g3 Na3 g2 Nc2 d3 Nh3 Be6 c8B Bc5 Ng5 Nc6 b8N g1N b7 Qd5 Na6 Nh3 b8N Nb4 Nc6 Ne7 N6d4 Rd8 h8N Ra7 Ng6 a3+ Kb1 Bd6 Nc5 Nf4 Na4 Re2 Rg1 Qe4 Rg4 Qa8 Nb3 Rh2 Bb7 Bd7 Be4 a2+ Kb2 Bc8 Qe1 d1Q Be3 d2 Bb6 Ng2 Ba6 Kg7 f6+ Kh6 Rf4 Bh3 f7 Kg7 Rg4 Kf6 f8N Bc5 Bed3 Rd6 Qe4 Qg1 Rb1 Rd8 Qb7 d1N+ Kc1 a1Q Qc7 Nbd5 Rb4 N5c3 Bac4 Bd6 Nf4 Bc5 Bh7 Ng6 Nd3 Kf5 Qe7 Rd5 Nd7 Rd6 Qe8 Rd5 Qg8 Bf8 Qh8 Ne4 Qg8 Qh8 Qg7 Nec3 N3e5 Rd6 Qh6 Rd4 Qg7 Nf2+ Kb2 Nd3+ Ka1 Nb2 Bd8 Na2 Bc7 Be7 Bb6 Bf8
nB2bq2/1q1Q1BR1/Bb1r1Nn1/7P/1kB5/2nnPB2/q2K4/rNR1RBr1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 h4 Ke7 a4 b5 c4 g5 e3 d5 e6 f5 a5 g4 a6 g3 c6 Kd6 c7 Kc5 h6 f4 h7 b3 h5 f3 e7 g2 e8B d4 a7 b2 Qd2 f2+ Kd1 b4 Rh2 d3 Ba4 b3 Rh1 Qd7 Ne2 g1R Nec3 Ne7 Bb5 Kb4 c5 Ng6 c6 Na6 Bc4 Bc5 Bf7 Rd8 h8R Qe6 Rh7 Bd7 c8B Bb6 c7 Be8 Rg7 Rd6 Bb7 Qc4 c8B Nc7 Ba6 Qd5 Bce6 Qb7 Na3 b1Q Bec4 Qa2 Nab1 b2 Nd5+ Kc5 Qc2 d2 Nf6 Kb4 Qf5 Qa3 Qd7 Qa2 Kc2 d1N Bd2+ Nc3 Bc1 N3d5 Kd2 Ndf4+ Bcd5 Rd8 a8B Nd3 Bdc4 Rc8 Bh3 f1Q Bg2 Qf5 Bf1 Qb8 Bf3 Na8 Rh2 Rc7 Re2 Ra7 Re1 Qd5 Kc2 Qdb7 Bd2+ Kc5 Bc3 Q8c8 Bd4+ Kb4 Kd2 Qd8 Be5 Qe7 Na3 Qf8 Rac1 b1N+ Kd1 Nd2 Nb1 Ne4 Bh2 Re6 Bb8 Rd6 Rc2 Nc3+ Kd2 Qa3 Rcc1 Qb3 Bab5 Ra1 Ba6 Qa2+
1n1Nb1b1/b1B1B1nB/2Rn2r1/1P2q3/3B4/BPq1Q1r1/NBk1K2b/1N1Rr3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 d4 Kf6 g4 c5 b3 a5 d6 e5 d5 h5 d7 h3 d6 a4 Kf2 c4 Ba3 e4 Bg2 h4 Bc5 a3 Qe1 h2 Be3 a2 Ke2 c3 Kd1 c2+ Ke2 c1Q Qf2 Qe8 d8B+ Ne7 d7 h3 Bc7 Ra6 d8B Qc3 Bc5 e3 Be4 Bd7 g5+ Kf7 f6 Ke6 g6 Nc8 f7 Nd6 g7 Rg8 f5+ Ke5 Ba3 Kd4 f6 Qe5 Bb2 Be8 Bh7 Be7 f8B Rb6 f7 Bg5 Bc2 Bf4 Bde7 Bg3 Nd2 Bf4 Rc1 a1B Qf3 Bg3 Nb1 Bf4 Kf1 e2+ Kf2 e1R Bh7 Nc8 Bea3 Rg6 Bfe7 Nd6 f8B Rg3 Rc2 Rg6 Qg3 Ke4 Qg5 Kd3 Ne2 Be3+ Kf3 Ba7 Rf1 h1N Qc1 Qcd4 Nec3 h2 Na2 Ng3 Rc6 Qc3 Qe3+ Kc2 Bc5 Ngf5 Bd4 h1B+ Kf2 Rh8 g8N Ng7 Nh6 Bd5 Nf7 Bc4 Nd8 Be6 Bg8 Rh3 Bh7 Rg3 Rg1 Rd1 Ke2 Bg8 Ba3 Bb2 Bf6 Bc1 B8e7 Bd2 Rf1 Be1 Rg1 Bf2 Re1 Bg1 Rf1 Rc1 Re1 Bh2 Rd1 Qcc5 Bdb2 Qec3 Bd4 Qe5 Rd3 Rh1 Rd1 Re1+
BBrB1R2/1q1bBB1r/KPkN1b2/P2r4/4Qn2/b1nR2qR/b5N1/4B1n1 w - - 0 1 illegal: No possible last move, all moves rejected
N3qKnb/kbB1P3/1NR1r2B/4bBBB/N4r1n/2b1P3/B6Q/1qR2rq1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 g5 Kg3 a5 h4 f5 b4 d5 c4 Kd7 c6+ Kc7 h5 Kb6 c7 d4 h6 a4 c5+ Ka7 h7 a3 e6 a2 c6 d3 b6+ Ka6 b5+ Ka5 e7 d2 b7 Kb6 Nf3 Bd7 c8B Ra4 c7 Nf6 Qc2 d1Q Ne5 Ka7 b6+ Ka6 Nc4 Bb5 Rh6 Ng8 Rc6 Bg7 Nc3 Qe8 Be6 Nd7 b8B Nf8 Rb1 Rb4 Na4 a1B Bf4 Bgd4 e3 Bac3 Qh2 Ng6 Be2 Nh4 Bf3 Qd3 Rc1 Qb1 Bf7 Kb7 c8B+ Ka8 Bce6 Ba6 Bbc7 Be5 b7+ Ka7 b8N Bb7 Nd7 Bed4 Kf2 g3+ Ke2 g4 Bg5 f4 Bf5 g2 B7d5 g3 Bh5 Qa1 Kd3 f3 Ke4 f2 Bdf7 f1R Kd5 Qb1 Ke6 Nh6 Bg8 Bf6 Bgf7 Rg8 h8B Rg6 Bg7 Ng8 B7h6 g1B Qh3 Bf2 Qh2 g2 Ndb6 g1Q Na8 Bg3 Ncb6 Rg4 Rd6 Bge5 Rc6 Qb8 Kd7 Rgf4 Ba2 Qd8+ Ke6 Bh8+ Kf7 Qd7 Kf8 Re6 Rc4 Qdb5 Rc5 Qd7 Rc6 Qe8+
2r4r/qBBKP1b1/b3n1B1/7B/2NRPQRq/qn2n1BB/5Nr1/1Nk2n2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 b4 h5 c4 d3 e4+ Kg6 g4 f5 b6 d6 b7 h4 e6 a4 c5 f4 b5 d2 e7 a3 c6 a2 c7 h3 b6 h2 Qf3 d1N Nh3 Na6 Kc6 d5 b8B d4 b7 d3 Nf2 d2 Rg1 h1Q Bh3 Qd3 Ba3 Nf6 Bd6 Nd7 Be5 Kh7 g6+ Kh6 g7 Kg5 g8B Bg7 Bf7 Nac5 Bg6 Nb3 Qg3 f3 Qf4+ Kh4 Rg2 Ndc5 Rg3 Ne3 g5+ Ng4 Bh5 d1R g6 Rd2 Rg2 Ne6 Rg1 Bh6 g7 Qe3 g8B Bg7 Rg2 Qa7 Bgf7 Qe1 Bfg6 Rb2 Qf7 Kg5 Bg3 Qh1 Rg1 Ne3 Rd1 Qe1 Rd4 Rc2+ Nc3 Qh1 Rg1 a1Q Kd6 Qc1 Nb1 Qh2 Nd1 Rg2 Nf2 Bd7 c8B Bb5 Qf8 Ba6 Bc7 Qa3+ Kd7 Qh1 b8N Qh2 Nd3 f2 Bb7 f1N Nc6 Rc8 Nce5 Qh1 Qf2 Qh2 Qd2 Qh1 Nf2 Qh2 Bh4+ Kf4 Qc1 Qg3 Qd2 Qg4 Nc4+ Kf3 Qc1 Ke2 Bhg3 Nf5 Qh6 N5e3 Qf4 Ke1 Nd3+ Kd1 Nf2+ Kc1 Bh4 Rh2 Rg3 Qg5 Rg4 Rg2 Bg3 Qh4
1r1R3Q/b4b2/r1n3P1/RB3NK1/2r2Bbn/B1B1Rq1B/2rP2nB/1b2Nk2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 g4 Kc5 e4 Kd4 b4 h5 g6 a5 g7 f5 g5 c5 b6 a4 g6 h4 e5 a3 d6 h3 e6 a2 d7 c4 b7 h2 b5 c3 b6 c2 e7 Nh6 e8R Nc6 g8B Rb8 Bb3 Qf6 d8B Bc5 Ne2+ Kd3 Bb2 c1R Bd4 Rc4 Rg1 h1B+ Rg2 Be6 Be7 Bf7 Bc3 Rc8 b8B Rf8 b7 Ba7 Na3 Rc7 Rb1 a1R Nc2 Ra6 Bc5 Rc8 Bbe5 Rb8 Re6 Rfc8 Ba4 Rc7 Bb5 Rcc8 Kf2 f3 Kg3 f2 Ba3 f4+ Kh3 f3 Rg5 Nf5 Bf4 Rc7 Kg4 Nh4 Bh3 f1N Ng3 f2 Nf5 Ne3+ Kh5 Bg2 Qh1 Ke2 Ne1 f1B Rb3 Bd5 Rd6 Neg2 Rd8 Bf3+ Kh6 Bg4 Bh2 Rbc8 b8B Kf2 Bf4 Bd3 Bh2 Rb7 Bbf4 Rbb8 Rh5 Qh8+ Kg5 Qf8 Bg7 Bb1 Re3 Qe8 Bc3 Qe4 Rhh8 Qf3 Rhe8 Rb4 R8e4 Rb2 Ra4 Rc2 Ra5 Ne7 Bg7 R8c4 Bc3 Nc6 Bg1+ Kf1 Qh2 Bh5 Bg4 Rbb6 Qh3 Rb7 Bgh2 Rb8 Nd4 Nf5 Qh4 Bb6 Bh3 Bg4 Qh8 Nh4 Nf5 Ba7
1r2nnb1/kP4Qb/P1r1nq2/1Bbr2N1/nK1R4/RBN4N/5N1N/2N3Br w - - 0 1 illegal: No proof kernel
1Bb2qBk/1qrn1Qb1/Bb4q1/b2NR1nP/1NrK3B/3P1R1q/6BR/5B2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 g5 Ke3 f5 h4 Kf7 a4 Kg7 a5 b5 h6+ Kh7 e6 c5 a6 c4 e7 g4 e8B c3 a7 g3 d3 b3 d6 c2 h5 g2 d7 b4 Ra5 b2 Re5 f4+ Kd4 f3 e4 b3 Bf7 f2 Rh2 Bb4 Nh3 g1B Nf4 Nf6 Qf3 Qf8 d8B Nbd7 Nd5 Ba5 Na3 b1Q Bf4 c1B Nc2 b2 Ncb4 Qc2 Bg3 b1Q Be7 Rb8 a8B Qc6 Bb7 Bf4 Ba6 Rb5 Bd6 Bd2 Bb8 Rc5 Bh4 Rg8 Qf4 Kh8 h7 Rg7 Bg8 Bc1 Qf5 Bh6 Qg6 Qe6 Qf7 Qb3 Rg5 Qf5 e5 Qg6 e6 Ne4 Re5 Ng5 e7 Qb1 e8B Qb3 Na2 Qbb6 Nab4 Qb7 Qf3 Re7 Qf4 Bg7 Qf7 Nb6 Bc6 Rc7 Nc3 Nd7 Bcg2 Bb6 Rh1 Bh2 Ncd5 Bf4 Rh2 Bd2 Nc6 Bda5 Ncb4 Qbc6 Ne7 Qa8 Ned5 Qb7 Qe6 Bh6 Qe8 Kg7 Qe6 Qff7 Qe8 Qfe6 Be2 f1Q Qe7+ Qff7 Bef1 Qh3 h8R Nf8 Bh7 Nd7 Qe8 Qe7 Rf8 Qef6 Bg8 Kh8 Qe7 Bg7 Qe6 Qd8 Rf3 Qf8 Qf7 Rc4#
1q1B4/1BN1bkBn/PQB3R1/2n2Bb1/1q2r3/r1R3n1/KN2nB1P/b3N2b w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 c5 d4 f5 Kd2 b5 Kc2 g5 Kb3 g4 a4 f4 h6 c4+ Ka2 f3 a5 g3 e6 f2 d6 g2 d5 c3 h7 c2 d7+ Ke7 a6 Nf6 e5 Qc7 d8N Qc3 Qd4 Bb7 Be3 c1B Na3 Nbd7 Qb6 Rb8 Bd3 f1N Bf2 Nc5 Bf5 Ng3 Nf3 g1B Nc4 Bg5 d6+ Ke8 Rc1 Be7 Ne1 b3+ Kb1 b2 d7+ Kf8 Ka2 b1N Nb2 Qb4 Rc3 Rg8 h8B Nh7 Bf6 Rg6 Bh8 Rh6 Bf6 Rh4 Bg7+ Kg8 Ned3 Re4 Ne1 Bf8 e7 Bc6 e8B Bfe7 e6 Ba8 Rf3 Nc3+ Ka1 Nce2 Ka2 Bc6 Rc3 Bb7 Bfd4 B1e3 Rg1 Bef4 Bf2 Be5 Nc6 Ba8 d8B Rb7 Na7 Be5f6 Na4 Bd4 Bc6 Be5 Rc2 Ba1 Rc3 Qb1+ Ka3 Nf1 Qa5 Be3 Bh8+ Rg4 Bce4 Bf8 e7 Kf7 Bc7 Rh4 Rg6 Nfg3 Rb6 Bg5 Bg7 Rb8 Bh1 Qe4 Bd8 b4+ Ka2 b3+ Ka3 b2 Nb5 b1Q Nc7 Qb5 Ka2 Rf4 Nb2 Qe8 Rg6 Rb3 Qb6 Qb4 Bf3 Qeb5 Qc6 Qb8 Qb6 Rd4 Bh5 Bg2 Bf3 Bh1 Bb7 Re4 e8B+ Kg8 Rd6 Bfe7 Bec6 Kf7 Rg6 Ra3+
4N2B/2q1b1rk/K2Nnn2/P2N2q1/1QRq1r2/Nnb2p2/1BN1bPN1/1R2B3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 Kd7 d6 e6 d5 Ra6 Bg2 Ra8 Bf3 Ke8 d7+ Ke7 Bg2 Kd6 Be4 Kc5 d6 Kb5 Bd5 exd5 Na3+ Kc5 Nb1 Kc6 Kd2 g5 Kc3 b5 Kb4 f5 h4 f4 e4 f3 a4 d4 h6 g4 h7 d3 e5 Kd5 a6 Ke6 Ka5 Kf5 e6 Kg6 a7 b4 e7 b3 e8N b2 Qb3 g3 Qb4 d2 Na3 b1N Nh3 d1Q Bd2 g2 Be1 Nd2 Rb1 g1Q h5+ Kh6 Rc1 Nf6 Nf4 Be7 Rc4 Rg8 h8B Kh7 h6 Na6 Ng2 c5+ Kb5 Qc7 d8N Bf5 a5 Bd3 d7 Rg7 Ne6 Nb3 d8N Be2 Nf7 Qd4 Nfd6 Rd8 a8N Rd7 Ne3 Qg5 Nb6 Rd8 Nec2 Rd7 Ndc8 Rd5 Nf4 Rf5 Ng2 Rf4 Qd2 Qb8 Ncd6 Nc7+ Kc6 Qd8 Kb7 Ne6 Nd5 Qc7+ Ka6 Bd1 Ra4 c4 Qb4 c3 Rg1 Kg6 h7 Be2+ Qb5 Kh6 Rc4 Kg6 Qb4 Kh6 Nce3 c2 Rf1 c1B Nec2 Bd2 Rg1 Rg8 Bg7+ Kg6 h8B Kh7 Rf1 Nh5 Be5 Rg7 Rg1 Nf6 Rf1 Qd3 Bb2 Bc3 Bd2 Rf5 Rb1 Rf4 Be1 Qd4
1RBR4/3qb3/Qpr1n3/2P3NR/2BB2bK/1N1RPn2/Rr2qk1n/1b4rR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 Ke6 h4 Kf5 c4 Ke4 a4 d5 h6 f5 h5 g5 e3 d4 h7 b6 a5 b3 c6 b2 a6 g4 a7 d3 e6 d2 e7 f4+ Kh4 g3 c5 g2 c7 f3 h6 f2 Nh3 g1R Ra2 Bg4 c8B Nd7 Qa4+ Kf3 Qa6 d1Q Bb5 f1N Ng5+ Kf2 e8R Qe2 Bc4 Ne5 Nd2 b1B Nb3 Qd7 Bb2 Ne7 Bd4 N7c6 Rd8 Nh2 Rd2 Rb8 a8R Be7 Rd3 Rb7 Rb8 Rc7 Ra8 Rf8 h8R Rf5 h7 Rf7 Ba1 Nd4 Rhf8 Rf6 h8R Rc6 Rh5 Ne6 Bd4 Rf3 Rfh8 Rfg3 Qb7 R3g2 Ra2 Rc1 Rhe8 Rc2 Qa6 Rb2 Bb7 Rg1 Rb8 Bd8 Bc8 Be7 Rd8 Nef3#
3r1k2/q4p1n/r1Nb2B1/1RNR2RB/bBQK1R1P/n6b/3P2Rq/r2R1q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 h4 c5 e4 g5 b4 g4 d6 c4 h6 c3 d7+ Ke7 b6 f3 Ke3 f2 b7 c2 h7 a4 e5 g3 b5 g2 e6 a3 b6 a2 Qg4 Nc6 b8R Nb4 b7 Ra5 Rh2 Bg7 Ne2 g1Q Rg2 Rh5 Nbc3 Qh1 Ne4 Re5 Ba3 c1R Nd4 Re1+ Be2 Ra5 Nc5 Qf1 Nc6+ Kf6 e7 Qc7 d8R Bf8 Rd5 Qh2 Ra8 Bf5 b8R Bc2 Rb5 Rc1 Rb1 a1Q Qe4 Ra4 Bh5 Bd1 Bg6 Kg7 Re8 Ra7 Qc4 Nc2+ Ke4 Qa2 Bb4 Qa4 Ra1 Na3 Kd4 Nf6 Rb1 Rg8 h8R Ra5 Rhh5 Nh7 Rhg5 Bb3 Rb2 Ra1 Rb1 Ra7 Rc1 Qa6 Rd1 Ba4 Rgf5 Qb6 Rf4 Ra6 Rdg5 Qc7 Rd8 Qa7 e8B Rh8 Rdd5 Bd6 Bd7 Rd8 Bh5+ Kf8 Bf5 Qe1 R2g3 f1B Bfg6 Bh3 Rg2 Qf1
B1BR1nBq/r3B2n/4n1rb/1b1pQ3/1Nb1P2K/k1P1R2b/B5N1/R3Bb2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 Kg3 h5 b4 a5 e4 f5 g6 f4+ Kh4 d3 g4 f3 b6 a4 g5 d2 c3 d6 g7 f2 b5 a3 g6 a2 e6 Bd7 b7 Ra7 b6 Bb5 Bh3 f1B Na3 Rh6 Ne2 Nd7 b8B Ngf6 g8B Nh7 g7 Rg6 b7 Qc8 Qc2 d1B Nf4 Bde2 Bd2 Bec4 Ng2 Qd8 Re1 a1N Re3 Nb3 Be1 Nd4 Rg1 Ke8+ e7 Ne6 Qf2 Qc8 Nc2 Qd8 Qf6 Qc8 Nb4 d5 Bd6 Qb8 Qe5 Qd8 b8R Qc8 Bg4 Qd8 Kh3 h4 Bd1 Qc8 Bb3 Qd8 Kh2 h3 Ba2 Qc8 Qg5 Qd8 Kg3 h2 Kh4 h1B Qe5 Qc8 Nf4 Bf3 Ng2 Bg4 Ra8 Bh3 Bc5 Nc7 Be6 Qb8 g8B Bh6 Bd6 Ndf8 Bc8 Nce6 Bf2 Bfd3 Ra1 Be2 Be1 Bf1 Ba6 Kd7 e8B+ Kd8 Bc6 Qc8 Bcb7 Kd7 Be7 Qb8 Qg3 Qe5 Qg5 Qh8 Rd8+ Kc7 Ba8 Kb6 Qh5 Ka5 Qe5 Ka4 Bc8 Ka3
2rqR3/B3bK2/N1n2Qp1/1N1PP2k/1rb1br1B/R7/NNB1b3/1N2bnN1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 Kf3 a5 Ke4 f5+ Ke5 Kf7 d4 c4 b4 f3 h4 g6 e4 c3 h6 a4 b6 c2 b5 f2 h5 a3 d6 a2 b7 f4 b6 f3 d7 Ba3 d5 Na6 b8B Bb7 h7 Qh4 d8N+ Kg7 Ke6 Be7 h6+ Kf8 e5 Nf6 Ba7 Nb4 Bd3 f1B Nc6 f2 Qf3 Bg2 Bg5 c1R Bc2 Ba6 b7 f1B b8N Bae2 Na6 Rg8 h8N Rc8 h7 Kg7 Nf7 Rgf8 h8N Ne4 Nd6 Nd2 Nb5 Rf4 Nf7 Rb8 Qf2 Be4 Nfd6 Rb7 Bf6+ Kh6 Nc4 Kh5 Nb2 Bc4 Rh2 Bfe2 Kf7 Nf1 Rh3 Rb8 Rg3 Rc8 Ra3 Rd1 Qb6 Rd4 Qd8 Qg4 Qf8 Qd7 Qg7 Qd8 Qf8 Bf5 Bh4 Rde4 Qg7 Rd4 Qf6 Be4 Na5 Nc6 Nb3 Bcd3 Nc1 Rb4 Nd2 Bc4 Rb1 a1B Na2 Ng3 Rc1 Nf1 Nb1 Bb3 Na4 Bc3 Nb2 Nh2 Rf1 Be1 Rf3 Nf1 Rc3 Nd4 Rc6 Bbc4 Re6 Bc5 Re7 Nc6 Re8 Be7
1qR4B/b2Kp1n1/N2r2n1/3B1nk1/2RrP1PR/R1N1N1rR/5QR1/1nb2n2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 h3 fxg4 Qa4 g3 Qd1 g2 Nc3 g5 Nb1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Ra3 Qc8 Ra1 Qd8 e4 Kf7 Ke2 Kf6 Ke3 h5 Kf4 c5 b4 a5 d4 c4 b6 a4 b5 a3 d6 a2 d5 c3 d7 c2 b7 h4 d6 h3 b6 h2 Qd2 Qc8 d8R Ra7 d7 Ra6 Nh3 g1N Nc3 g2 Bc4 Kg6 Ke5 Rh7 Ke6 Rh8 f4 Bh6 Bb2 c1B Qf2 Nf6 Bd5 Nc6 b8N Ne8 b7 Ne2 Rg1 Qc7 Rc8 h1N d8R Neg3 Rd6 Ra4 Na6 Rd4 b8R Ne5 Rc6 Nf1 Rb3 Qb8 Rc4 Nhg3 Ra3 Bg7 f5+ Kh6 f6 Nf5 f7 Ng6 Nf4 Kg5 f8R Rh6 Rb1 a1N Kd7 Nb3 Rh8 Nbd2 Rh1 g1R Ng2 Be5 Rh3 Neg7 Ne3 Rg3 Rba1 Bd6 R1a2 Bc5 Rh7 Nb1 Ba1 Nh8 Rd2 Rf6 R7h4 Ng6 Na2 Ne6 Qe1 Rd3 Rg2 Ba7 Qf2 Rd1 Be5 Rd4 Nc3 Nef4 Raa4 Nh5 Ra3 Re6 Bh8 Nhg7 Rb4 Rf6 Rbc4 Rd6#
8/1K1PBrqk/1R1rP1bn/B2R2b1/bBb3b1/p4BBN/2N2B1N/1n2n2Q w - - 0 1 illegal: No proof kernel
3RR1Rq/P1P3NN/Rpkb1Kn1/3b1n1N/r2R2b1/r1b5/Q3B1nb/B2R4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 e5 Ke3 d5 f4 Kd7 a4 g5 h4 e4 Kd4 b3 Ke5 g4 c4 e3 c6+ Kc7 a5 b6 a6 b2 h6 d4 h7 d3 h5 d2 a7 g3 c5 g2 h6 e2 f6 e1B f7 Bb7 f5 Qc8 f6 Bh4 Qb3 d1N Ra6 Nc3 Qa2 Ne4 Na3 b1B Nc2 Nd6 Be2 Nb5 Ne3 Qd8 Nf5 Bc2 Bb2 Na3 Ba1 Be1 Nh3 g1B Nf4 Bd1 Ng7 Ne7 Nfh5 Nf5 Ke6 Be7 f8R Bd6 f7 Nd7 Re8 Bgh2 f8N Nc2 Rg1 Rg8 h8R Nce3 h7 Ne5 Rf1 Qc8+ Kf6 Bc3 Rf4 Ng2 Rd4 Ng6 Rd8 Qb8 Rd7+ Kc8 c7 Bd5 Rd8+ Kb7 c8R Bdg3 Re8 Bd6 Rcd8 Qc8 c6+ Kc7 Bc4 Bg4 Re1 Rb8 Be2 Rb7 Rd1 Qa8 Qb3 Rb8 Qa2 Rc8 Nd7 Re8 Nf8 Re3 Re8 Rd8 Rg8 Rd7 h8R Rde7 Nh7 R7e4 Re5 Qc8 Rd8 Rg3 Rhg8 Rf3 R4d3 Ra4 Rd4 Rh3 Rdf8 Bb2 Rh8 Rha3 Re3 Bdg3 Re5 Kd6 c7 Kc6 Re7 Qe8 Rd7 Bd6 Rd8 Re3 Rf7 Qg8 Re7 Rea3 Ree8 Bc3 Nf8 Qh7 Rg8 Qh8 Nh7 Be1 Qb2 Beb4 Qa2 Bc3
2k5/R4b2/1P1R1rBb/nNnQB1Nq/4q1rN/2R1r1R1/3pRPRr/1r4K1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 e5 h4 g5 c4 a5 h6 d5 b6 Kd7 h5 d3 h7 d4 h6 g4 b5 g3 b7 g2 c5 a4 b6 a3 c6+ Ke7 f6+ Kd6 c7 Kd7 f7 a2 Nh3 g1R Ng5 e4 Rh3 e3 Na3 e2 Bb2 Ra5 Rg3 Nc6 b8R Rf5 Nb5 Qe7 Ra8 Rf6 Ra7 Bg7 f8R Qe4 Re8 Na5 Qd2 Rg2 Rd1 a1R Re6 Bb7 c8R Rb1 Rc3 Kd8 Ba1 Bd5 Re5 Bc4 Qa2 Bf7 Qd5+ Rd6 Bb2 Nf6 Re6 Rg8 h8R Nd7 h7 Rh2 Bh3 Rc6 Bf5 Bh6 Bg6 Kc8 Rg2 Nc5 Re5 Re8 Rg8 Rf6 Rg7 Ree6 h8N Rf4 Ba1 Ref6 Re6 Rg4 Rd6 Rb4 Rd2 Rb3 Bh5 Rb2 Ng6 Rb4 Nh4 Rb3 Ra2 Rb1+ Kd2 e1R Bg6 Re3 Rac2 Rb2 Kd1 Rb3 Re2 Rb4 Ke1 d2+ Kf1 d3 Kg1 d1Q+ Re1 Qdf3 Re2 d2 Rc1 Qff5 Be5 Rb2 Rc3 Rb1+ Rc1 Qff3 Nh3 Rgf4 Bf5+ Re6 R7g3 Qg4 Ng5 Qh5 Bh7 Ref6 Bg6 Rbb3 Rc4 Rg4 Rc3 Rb1+
1R1B1r2/b1b2R2/3N1BqN/1B2qNQ1/NK1bq3/1P1Prb2/2n3pN/4Nn1k w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kd7 f4 Kd6 h5 a5 b3 c5 b6 e5 b7 g5 f6 e4 f5 Ke5 h6 Kf4 h7 Kg3 d6 e3 d7 c4 f7 c3 f6 c2 Bb2 c1Q Na3 e2 Nf3 a4 Nc2 a3 Nh2 Bd6 f8B a2 f7 Nh6 Be7 Qg8 d8N Qb1 f8N Nc6 b8N Nb4 Nbc6 Bb7 Nd7 Bc7 Qc1 Nf5 Bbf6 Ne3 Nc5 Qg6 N6d4 Rf8 h8N Bf3 Ndb7 Rae8 Nf7 Qb2 Rb1 a1B Na4 Qc3 Nh6 Qcd3 Ne6 Bd4 Ng7 Qde4 Bd8 Re7 Nd6 Re5 Bg2 Nf1 d3 Ba7 Rg1 Re7 Bh1+ Kh3 Rg2 g3 Ngf5 g4 Qg5 Re5 Rf2 g2 Ra1 g1B Rc1 g3 Ra1 Ne3 Kd2 Nf1+ Kc3 Ree8 Ne1 Nc2 Rg2 Bge3 Rf2 Bed4+ Kc4 Qf4 Ra2 Re3 Ra3 Qe5 Ra2 Ba8 Bc6 g2 Bb5 Bf3 Nb6 Bab8 Ra8 Ba7 Na4 Qe4 Rb8 Qe5 N2g4 Qe4 Ne5 Kh2 Neg4+ Kh1 Nh2 Na3+ Kb4 Qe5 Nc2 e1Q+ Rd2 Qf2 Ne1 Qh4 Rc2 Qhf4 Rc5 Qee4 Re5 Qg3 Re7 Qge5 Rf7 Nc2+
1r1R1r1b/4n1r1/Bb3q2/NR1NNBp1/1Nb1P3/3P1N2/q2NQb1n/k1B3K1 w - - 0 1 illegal: No possible last move, all moves rejected
1bN1qk2/Bq2NB1R/6q1/P2b1RB1/B1Q3p1/K2n2n1/2bP1B2/B1Rbrr2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 b5 a4 g5 h4 f5 a5 c5 d6 c4 h6 c3 h5 b3 d7+ Ke7 h7 g4 e6 f4 h6 f3 e5 c2 Bc4 b2 Nh3 b4 Qe2 b3 Ng5 Qe8 Ne4 Nc6 Nd6 Na7 Nc3 b1Q Nd5+ Kd8 Ne7 Qa2 Ba3 b2 Rc1 b1B Bc5 Nf6 Bf2 Bb7 Ndc8 Nc6 Bd5 Qb3 Qc4 Rg8 h8B Ne4 h7 Nb4 Bc6 Qb2 Ba4 Ng3 Bf6 Be4 h8B Bd5 Bg5 Rg6 Rh5 Rf6 Rh7 Bh6 Bge3 Bf4 Ba7 Rf7 Rd1 c1Q Bg7 Qcc3 Rc1 Bbe4 Kd1 Nd3 Bf6 Qb8 Bg7 Qa3 Kc2 Qad6 Bh8 Qbc7 Kb3 Qdb6+ Ka3 Qcb7 Be3 f2 Bd4 f1B Bf2 Q7c6 Bg7 Be2 Bf6 Kc7 d8B+ Kb7 Ng6 Qg8 e7 Nc5 e8B Bd1 e6 Bec2 e7 Nd3 Bc5 Bc7 Bh8 Rf1 Bf7 Qcb5 e8R Kc6 Be5 Kd7 Bf2 Qb7 Nd6 Rc8 Bh4 Bb8 Bg5 Qg7 Re6 Re8 Rf6 Qg8 Bc3 Ree1 Ne7 Qg6 Ndc8 Kd8 Ba1 Kd7 Bg8 Ke8 Bf7+ Kf8 Rf5 Qe8
6BR/1q1b4/q1BKPNq1/qrR5/2nbb2p/4P2N/NQ2Nn1k/1rN1B1N1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Kd7 Ke3 c5 Kf4 a5 b4 f5 g4 h5 d4 h3 d6 Ke6 g5 c4 d5+ Kd7 e3 c3 g6 a4 b6 c2 b7 h2 g7 a3 e6+ Ke8 Ke5 a2 d7+ Ke7 b5 f4 b6 f3 Nd2 f2 Qe2 Ra6 Nb3 Nf6 g8B Ne4 Bg2 f1B Bd2 c1Q Be1 Ra5 Qb2 Qc2 Rc1 a1Q Bf3 Qd3 Rc5 Rb5 Nc1 Nf2 Be4 Qe8 d8N Qg6 Nf7 Qa5 Ng5 Bg2 N5h3 Bd7 Bf3 Qda3 Be4 Qa6 Bf3 Q3a5 d6+ Ke8 Kd5 Nc6 b8N Bg7 b7 Ne5 Nc6 Nc4 b8N Bd4 Nb4 Kf8 Be4 Kg7 Nba2 Kf6 Bf3 Kf5 Be4+ Kg4 Bf3+ Kg3 Be4 Bc8 d7 Qd2 d8N Qda5 Nd7 Rh6 Nf6 Bd7 Nc6 Rh8 Bf7 Rhb8 Bg8 Bf3 Nc3 R8b7 Nb4 Kg2 N3e2 h4 Nba2 Nb6+ Kd6 Nc4+ Ke7 Rb8 Bc6 Be4 Rh5 R8b6 Rh8 Rb7 Nf3 R7b6 Rf1 h1Q Nfg1 Na3 Kd6 Kh2 Qc2 Rb1 Qd2 R6b5 Qb2 Nd1 Rf4 Nf2 Rf5 Nc4+ Ke7 Qf3 Rc5 Bd3 Ba8 Qfc6 Bb7 Qcc7 Be4 Qcb7 Bc6 Nb6 Kd6 Bf5 Nh7 Be4 Nf6 Nc4+
B2r1N2/BN1q1R1P/6b1/R1Q3np/B1bnb2k/BNbBr3/P2K4/r5Bq w - - 0 1 illegal: No proof kernel
4n1N1/1R4nP/B1BPKQ2/2BB1R1B/bbq5/r2BR3/p7/1Nkrbqnn w - - 0 1 illegal: No possible last move
4qR1b/1B2R1pr/N1nN2bb/BRK3Q1/Bn2rR2/3nR3/k1P2PR1/b6q w - - 0 1 illegal: Other
1q2nrRQ/1b2bP2/6rR/Rb2R1N1/3Bq1BK/1N4P1/1rrp1Bnk/2RR4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 Kf7 Kf2 e5 Kg3 a5 c4 d5 b4 h5 b6 a4 g6+ Kf6 g7 a3 c5 a2 b7 h4+ Kg4 e4 c6 d3 c7 d2 b5 d4 g3 d3 b6 e3 Bh3 e2 Qb3 e1Q Nf3 d1R Nbd2 Nc6 b8B Bb7 c8R Nd4 Ng5 Be7 Bb2 Rc1 Qc3 Rc2 Ba7 Rh6 Rd1 a1R Nb3 d2 Rc5 Ra5 Re5 Rg6 Rh2 Bc6 b7 Ne6 b8R Qe4 Bf2 Bb5 Rc8 Ra2 Kh5 Qd6 Bg4 h3 Kh4 Qb8 Rhh1 h2 Ba1 Nh6 g8R Nf7 Qd4 Rcb2 Rcc1 Nd6 Qc3 Rc2 Qc8 Ne8 Bad4 Rab2 Qd8 Ba6 Ra5+ Qbe5 Rhe1 h1B Rh8 Bb5 Rh6 N8g7 Qh8 Rf8 Bc5 Qb8 Bb6 Qd3 Re5 Bb7 Bbd4 Qe4 Nh3 Kf7+ f6 Ne8 f5 Nf4 Ng1 Nc7 Nf3 Ng2+ Kh5 Ke8 f7+ Kd7 Ng5 Ne8 f6+ Kd6 Re6+ Kd5 Re5+ Kc4 Bd7 Kd3 Bc8 Rfg8 f8R Ke2 f7 Rc5 Be1 Kf1 Bg4 Rcc2 Bef2+ Ne1 Qh7 Kg2 Kh4 Rh8 Rg8 Kh2 Rg7 Rg8 Qh8 Rf8 Rg8 Ng2+
1b2R1N1/qr1K1p1R/2P2B2/1PrRr1qR/nN1Nk2n/1b5R/B1b4b/3Q3R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 c4 a5 b4 g4 h4 a4 c5 g3 b6 g2 h6 a3 b5 a2 c6 d6 h5 d3 h7 d2 h6 Ra7 b7 Ra6 Nf3 g1B Nc3 Ra7 Bb2 Qg5 Rh3 Nd7 b8R Bg7 Nd5 Rb7 Nb4 Bh2 e3 Bf8 Bc4+ d5+ Kd4 Kf5 e6 Nc5 e4+ Kf4 e5 Na4 e7 Bf5 e8N Bd6 e6 Bc2 e7 Bc7 Nf6 Kf5 e8R Ne7 Ng8 Ng6 Rbd8 Nh4 Rc1 a1Q Ba2 Bb3 Qc2+ Kf4 Rh1 d1B Qe2 Bdc2 Qd1 Nb6 Kc5 d4+ Rd5 d3 Be5+ Ke4 Nd4 d2 Bf6+ Kf4 Qe2 d1R Qe1 Rc1 Qd1 Bd8 Kd6 Bc7+ Ke7 Na4 Kd7 Be4 Rg3 Rc5 Rh3 Bd3 Ne7 Rg8 h8R Bdc2 Rh7 Rg7 Ng8 Rg6 Be7 Re6 Bf6 Re1 Rg7 Re6 h7 Re5 h8R Ke4 Rgh7 Qc3 Na6 Qa5 Nb4 Qa6 Rh5 Qa7 R8h7 Bb8+
1N1NBbbr/2P1kBBq/1QB1Brb1/n4P2/5KN1/8/1nRp1BR1/b1r1q3 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 d5 Ke3 h5 c4 a5 g4 e5 f4 h4 b4 h3 b6 a4 c6 h2 g6 a3 b5 a2 g7 Ra7 b7 Qd6 b6 Kd8 f5 Be7 c5 Bf6 g5 Qf8 g6 Ra6 c7+ Ke8 c6 Be7 Qb3 Ba3 Nh3 Ke7 Bg2 Kf6 Nc3 Qf7 Na4 Bf8 Rg1 h1B Nc5 Nd7 b8B Ne7 g8B Qh7 b7 Nb6 g7 Na4 Bb2 Be6 c8B Bf7 c7 Bg6 Bd7 Nc6 Ne6 Ke7 Nd8 Na5 Be8 Rf6 Rac1 a1B Bc3 Nb2 Nf2 Bf7 Bf3 Bg6 Rc2 Bg2 Ng4 d4+ Kf2 d3 Kg3 d2 Qb6 e3 Bfc6 e2 Be6 e1R g8B e4 Kf4 e3 Ba7 e2 b8N Bf3 Bgf7 Rc1 Rg2 e1Q Be5 Bd5 Bd4 Bh5 Bc3 Rg6 Bg7 Rf6 Qa6 Bg6 Bf2 Ba2 Qb6 Qeh1 Bc8 Bh5 Bg6 Bg8 Be6 Qe1 Bgf7 Bg6
1q3bb1/n1p1BPBk/2R1r3/2nq3B/1B2P1Kn/2R1Q1r1/b1B3N1/1NB1nR2 w - - 0 1 illegal: No proof kernel
Nn3nQ1/qp4r1/BN2q2R/1r3n1K/bB2B3/5B1k/1PrB3P/n1bRN2B w - - 0 1 legal: proof: f4 c5 d4 e5 fxe5 cxd4 g4 h5 gxh5 Qg5 Be3 Qe7 Bc1 Qd8 Na3 Qg5 Nb5 Qf6 Nxa7 Qd8 Kf2 Ke7 Kf3 Rh7 Kg4 Ke6 a4 g5 e4 d5 c4 d3 c5 d4 h6 f5+ Kh5 g4 c6 g3 c7 g2 a5 d2 a6 d3 Qg4 d1N Nf3 Bd7 Nc8 Ne7 a7 d2 Qg5 g1Q Ra6+ Bc6 Qg8+ Rf7 Be2 f4 h7 Qf2 h8B Qd3 Qg3 Bh6 Qg8 Ne3 Bg7 d1N Bf8 Qb3 Rg1 Ng6 Bb4 Nf8 Rb6 Qd5 Ba6 Nbd7 Rf1 Rb8 a8N Nc2 Rh1 Nde3 Rd1 Qd6 Ne1 Ba4 Rc6 Na1 Rb6 Ng2 Rc6 Qa7 Ncb6 Nh4 c8B Ke7 e6 Kf6 e7 Rg7 e5+ Kf5 e8B f3 e6 f2 e7 f1R Bf4 Rf2 Bf7 Rc2 e8B Rc5 Ba2 Rb5 Bd5 Bg5 Bh1 Qd5 Bg3 Bc1 Bf4 Qe5 Bfd2 Qd5 Kh6 Kg4 Bg6 Kh3 Re6 Ne5 Bc2 Nc6 Bce4 Qb3 Bd7 Rc8 Bef3 Nf5+ Kh5 Qd5 Rh6 Nb8 Bc6 Qe6 Bce4 Rc2
2RRNqrb/PK4Q1/n1R3N1/Rr1r3R/4n2B/2p2P2/b1q1Rq2/1q1kN2B w - - 0 1 illegal: No possible last move, all moves rejected
Nq1n2rB/p2RPb2/2rB4/n3K1BN/1B1b4/2B3Qb/bNRPkqBr/8 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kc4 b4 g5 b6 f5+ Ke5 c5 b7 g4 d6 f3 h6 f4 b5 f2 e4+ Kb4 b6 g3 h5 c4 d7 c3 h7 f3 h6 c2 Ba3+ Kb3 Qe1 c1R Ne2 Kc4 Bb4 Kd3 Ra2 g2 Nbc3 g1Q Na4 Rc7 Rc2 Na6 b8B Bc5 b7 Ne7 Bg2 f1B Ng3 f2 Nh5 Qf8 d8B Rc6 Bd6 Be6 b8N Nc7 Nd7 Bf7 Ndb6 Ne6 Rh2 Rg8 h8B Be2 h7 f1B Bg7 Qf2 h8B Bg4 Bf6 Bh3 Bg5 Rb8 Na8 Rbb6 B8c7 Qb8 Bc3 Rb4 Ba5 Nd8 Rh1 Rbb6 Bab4 Be2 Qg1 Bd1 Nb2+ Ke2 Qh2 Rb7 Qg3 Rb5 Rc1 Bdb3 Rc2 Ba2 Rf1 Qe3 Rf3 Qf2 Rd3 Rbb6 Bc7 Rh6 Rd7 Rbc6 Bd6 Bg4 Ng7 Rh2 Nh5 Bf5 Kf6 Bb6 e5 Be3 e6 Bh3+ Ke5 Bd4+ Ke4 Nd5 e7 Nb6 Bh4 Nc4 Bg5 Qe1 Kf4 Na5 Ke4 Qg1 Kf4 Qf2+ Ke4 Bb6 Ke5 Bd4+
bRRb1n2/BB5R/b4N1r/2R1pPQ1/4nP1B/k1bR4/1R2q2N/br1b3K w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 b4 Kd6 f4 h5 Kf2 e5 g4 c5 Kg2 a5 b6 c4 b7 c3 b5 a4 g5 c2 g6 a3 g7 a2 b6 Be6 Nc3 Nd7 b8R Rh6 b7 Ngf6 g8R Be7 Nf3 Ne4 Nh2 Nf8 Qg4 Bc8 Be3 c1B Qg5 Bd2 Rc1 a1B Ba6 h3+ Kg1 h4 Rc2 Kc7 d6+ Kb6 d5+ Ka5 d7 Kb4 d6 Ka3 Nd5 Bdc3 Nf6 Qc7 d8R Qc4 d7 Qe2 Rb2 Ra7 Bf2 Ra8 Re8 Bd8 Re6 Ra7 Rc6 Ra8 Rc5 Ra7 Nf3 h2+ Kg2 Ra8 Rh8 Ra7 Rh7 Ra8 Rd1 h1B+ Kh2 h3 Rd3 Bg2 Bh4 Bf1+ Kh1 h2 Bc4 Ra4 Bd5 Rb4 Bc6 Bh3 Bd5 Bg4 Bc6 Be7 d8R Rb3 Re8 Bd8 Bd5 Bd7 Rbc8 Bb5 b8B Ba6 Bb7 Rb6 Ba7 Rb5 Nd2 Rb6 Nf1 Rb5 Rbd2 Rb1 Rb8 Qe3 Rb2 Bd1 Re6 Qf2 Rec6 Qe2 Rcc8 Nf2+ Kg2 h1B+ Kg1 Bd5 Nh2 Ne4 Kh1 Bb5 Ba6 Ba8 Bb7 Ba6
2nn1bk1/b1K1n2n/N1RB2P1/p2b1P2/3rN2B/2NBNr2/2R4Q/1bNq1N2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f6 Kf7 Ke2 h5 Kf3 e5 Ke4 a5 g4 c5 f4 h3 d4 h4 b4 c4 f5 h2 g5 c3 g6+ Ke8 b6 c2 b5 h3 b7 Rh7 f7+ Ke7 d6+ Kf6 Kd5 Kg7 b6 e4 d7 e3 Ra2 e2 Bf4 e1N Qe2 c1B Nd2 Bb4 f8N Nh6 Ne6+ Kg8 Ng5 Bc3 Kd6 Nd3 d5 Nc6 b8B Ndb4 b7 Qe8 d8N Ba3 Ndf7 Ng4 Bg3 Bd4 Ne5 Be6 Nd3 Ba7 Qg2 Rh6 Ne2 Nf6 Bc7 Qf7 b8N Nh7 Na6 Qg7 Bd8 Qd4 Kc7 Bf7 Bf6 Rd8 d6 Bb3 d7 Bc2 Rg1 h1B Bfe5 h2 Bf2 Re8 d8N Bb1 Nde6 Rh3 N6f4 Nd8 Nd5 Nbc6 Bh4 Bf8 Bd6 Re4 Ne3 Ne7 Qf2 Qd5 Rg2 Qb3 Ndc1 Qd1 Ra3 Rg4 Rc3 Rd4 Rc6 Rg3 Qg1 Rh3 Rf2 Bd5 Nc3 Rg3 Bd3 Rf3 Bb4 h1N Ndf1 Ng3 Qh2 Ne4 Rc2 Nd6 Nge4 Ndc8 Ba3 Qe2 Bd6 Qd1
2B5/kbK1q1bn/b6p/R1nR1nP1/1brB1B2/R1BB1Q2/1b1NBN1P/7b w - - 0 1 legal: proof: e4 c5 f4 d5 a4 a5 d4 b5 axb5 g5 fxg5 Ra6 Qg4 Rd6 Qf3 cxd4 Qd1 d3 Kd2 d4 Ke1 Rd5 exd5 Bh6 Nc3 Bg7 Nb1 Bf8 Kf2 Kd7 Kf3 Kc7 Ke4 Kb7 Ke5 f5 b4 e6 g4 h6 c4 d2 c5 d3 c6+ Ka8 b6 a4 b5 a3 b7+ Ka7 g6 a2 d6 f4 g7 f3 g5 f2 c7 Qe7 d7 Na6 d8R Nf6 g8B Nh7 Qf3 d1B Be2 f1B Bd2 Nc5 Nh3 Bg2 Bc3 d2 Nf2 Ba4 Rd1 Bh1 Rd3 Bb3 Bf7 Bc4 Bg6 Rg8 Rd5 Rh8 Re1 d1N Bgd3 Ne3 Nd2 Nf5 Rg1 Rg8 Rg4 Rg6 Rg3 Rf6 Bd4 Bg7 b8B+ Kb6 Rb1 Bb7 c8B a1B Rc1 Bc3 Ra1 Bb2 Ra5 Rf8+ Kf4 Rd8 Bbe5 Rd7 Bc3 Rc7 Bed4 Rc6 Rg1 Rc7 Rga1 Rc6 R1a3 e5+ Kg4 e4 Kf4 Kc7 b6+ Kb8 Ra6 e3 R6a5 Bba6 b7 Ka7 Bf1 e2 b8B+ Ka8 Bbe5 e1B Bfe2 Rc7 Bd6 Kb8 B6e5 Bb7 Bd6 Ne6+ Ke4 Bca6 Bf4 Ka8 Bf6 Rc4+ Ke5 Qf7 Bd4 Nc5 Bc3 Ka7 Bd4 Ne3 Kd6 Qf8+ Kc7 Nf5 Nf1 Bb4 Nd2 Qe8 Bc3 Qe3 Bfd4 Qe7+
k4K1b/q1r2P2/bR1PNR2/1B2n3/Q1NNnrNB/1b2N3/RprN2p1/2n5 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 b5 h4 Kb7 a4 g5 d4 g4 f4 c4 d6 b3 a5 b2 h6 e6 h7 c3 a6+ Ka7 h5 g3 d7 g2 h6 b4 d5 b3 f6 c2 f5 Ba3 f7 Be7 f8R Ba3 d6 Bb7 f6 Ne7 Bb5 Qa5 d8N Bc6 Bg5 c1R Ra2 Bb4 Nd2 b1B Bh4 Bc2 Ne2 Nd5 Nd4 Bc3 f7 b2 Rf1 Qa3 Rf6 Bb3 Qg4 Rg8 h8N Rc2 h7 Bb7 Ng6 Bc8 h8N Nd7+ Ke4 e5 Kf5 e4 Ke6 e3 Ne7 e2 Nhg6 e1N Nef5 Rb8 Ne3 Rb7 Ne5 Ka8 a7 Nd3 Qe4 Rh8 N5g4 Rc7 Rg8 Nc1 Qf4 N5b6+ Ke7 Na4 N8e6 Ne5+ Kf8 Nc5 Qe4+ Bb7 Qc6 Ne4 Qc4 Qa5 Qa4 Rh7 Rg5 Ba6 Rgf5 Kb7 a8N Rh5 Rf4 Rf5 Nb6 Ka7 Nbc4 Ka8 Rf3 Qb6 Rg3 Rf2 Rgf3 Qa7 R3f5 Rf4 Rg5 Nf3 Rc5 Ne5 Rc6 Bb4 Rb6 Ba5 Nc6 Bc3 Ncd4 Rf3 Rh6 Ned3 Nc6 Bh8 Ncd4 Rf4 Rf6 Ne5
1Q2N3/bPrr3N/2NNR2p/K2p2RB/7B/rN3nnn/1bk1N2P/R3q2b w - - 0 1 illegal: No possible last move
1b5K/brN1qqR1/1k3Br1/1b1p4/1BB1pn1N/1BP3B1/1BR1QP2/n2n1R2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 e5 Ke4 h5 b4 d3 g4 h4 b6 a4 c3 h3 b5 a3 b7 h2 b6 a2 g6 d6 g7 Kd7 g5 Kc6 g6 d2 f6 Qd7 f7 Qc7 Qe2 d1N Bb2 Ra6 Na3 Rh7 Rc1 a1B Rc2 Ne7 g8B Nd7 b8B Nd5 Kf5 e4 b7 Nf4 g7 Kb6 Nb5 Nc5+ Kf6 Nb3 Nf3 Bd7 Nh4 Qc5 Rg1 h1Q Nc7 Qf3 Rh1 Bb5 Ba7+ Kc6 b8B Qa3 Bd4 Qb4 Bc1 Bb2 Be5 Ba3 Bb2 Kb6 Rg1 Nh3+ Kg6 Qc5 Bf6 Na1 Rh1 Be7 f8B Nf4+ Kf7 Bd8 B8e7 Qg5 Kf8 Qe5 Bb3 d5 g8R Bc5 Rg7 Be3 Bb4 Qe7+ Kg8 Bd4 Ne6 Bc7 Rhg1 Bce5 Nc7 Bd6 Rf7 Rg7+ Kh8 Rg6 Rg7 Ra7 Bh3 Rb7 Rf1 Kc6 Bg4 Ba7 Bc4 Kb6 Bd7 Ba6 Ba4 Bb5 Bab3 Nh5 Be5 Qff7 Bf6 Be5 Ne6 Nf4 B8d6 Bd4 Nc7 Bb8 Bde5 Kc6 Bed6 Bda7 Bde5 Kb6 Bed6 Nh5 Bg3 Nf4
B2q1NB1/n1BbR1BP/1r1p1rn1/B4p1k/r3N3/RB3P1K/2q1Q2b/3R1q2 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 e5 gxh5 exd4 a4 Na6 axb5 Nb8 e4 a5 c4 g5 h4 f5 f3 Kf7 Kf2 g4 Kg3 d3 h6 Kg6 c6 a4 h7 a3 h5+ Kf6 c7 d6 h6 Kg6 e5 a2 b6 d2 e6 Nf6 c5 Bd7 c8B Bc6 e7 Nbd7 e8R Ra5 b7 Ra3 b8B Ba4 c6 Qb6 c7 Nd5 Bc4 Be7 Nh3 Nb4 Bb3 Nc6 Bb7 Rf8 h8B Na7 c8B Ne5 h7 Kh5 Nc3 Ng6 Ba8 Bg5 Bg7 Bd7 Bc7 Ra4 Re7 Rf6 Qe2 d1Q Bd2 Qc2 Ne4 Bf4+ Kg2 g3 Ba5 Qb8 Rhd1 Rb4 Bg8 Rb6 Nhg5 Be5 Ba6 Qd8 Kh3 g2 Bac4 g1Q Bb3 Bh2 Ne6 Qf2 Nf8 Qe1 Rab1 a1R Rbc1 Ra4 Ra1 Qf2 Ra3 Qf1+
1qNq1Rr1/1R1bb1p1/1N1r2k1/2B2n2/1R2bRrR/1p5P/3K2PR/2BNQ2n w - - 0 1 illegal: No proof kernel
3nBR2/K3b1pR/6NR/2NR2R1/1P1rp2b/1q1r1P1N/1qR3QB/1k3nnb w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 h4 c6 b4 a4 f6 e6 b6 a3 b7 a2 f7 g3 f3 g2 h5 Nd7 b8R Qg5 h6 Ne7 h7 Nc5 Qe2 Ne4 Rb5 Ra3 Rh6 Ng3 Nh3 g1N Nc3 c5+ Kc4 Qe3 d4 Rb3 Na4 Rd3 Qg2 Nc6 Rb1 a1B Rb2 Rg8 h8N Nd8 Ng6 e5 Rc2 Be7 f8R e4 Ra5 Bh4 Kb5 c4 Kb6 c3 Ka7 Be6 Be2 Nf1 Nc5 Bb2 Bd2 Bc1 Be1 Bd2 Rb5 Be7 Bh4 Be1 Bf6 Bh4 Bg5 Kc7 d6+ Kc6 d7 Kd5 Bf4 Kc4 d5 Bf5 d6 Bg4 Ra2 c2 Bh2 c1Q Rc2+ Kd4 Rh7 Qb2 Rb6 Rh8 Rf5 Rf8 Rg5 Rf5 Rc6 Rd5 Ra6 Qb3 Rb6 Qc1 Rc6 Qcb2 Rb6 Rc3 Bb5 Rd3 Rc6 Ke3 Ra6 R5d4 Rb6 Nf7 d8R Be6 Rf8 Nd8 Be8 Bc4 d7 Be6 Nhf4 Bh3 Qg3 Bg2 Nh3 Bh1 Qg2 Bf2 Rc4 Kd2 Rc2+ Kd1 Re6 Nf7 d8R Bh4 Rdd5 Nd8 Rf2 Kc1 Rc2+ Kb1 Nh8 Rd2 Reh6 Rd1 Ng6 R1d3
b3r2N/RqqP1R2/2nr1pn1/N3bB1B/2PB1rN1/6B1/2nBQp2/1KB4k w - - 0 1 illegal: No proof kernel
1bQB1nNq/3p2rP/1n2pR2/1N5k/R4q2/r3N2b/1q2K1PN/1B1BNnN1 w - - 0 1 illegal: No proof kernel
1nB3b1/2P2B2/2R5/N2B2BP/qBrRR1qr/p2p4/1NQB3k/bK1b2nr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 Ke6 c4 Kf5 Kc2 Kg4 b4 Kg3 e4 a5 h6 d5 e6 g5 e7 f5 e8B a4 b6 g4 c5 a3 h5 f4 b5 f3 b7 f2 e5 Qd6 b6 Bg7 e6 Nd7 b8R Ba6 b7 Ngf6 c6 Rg8 h7 Ne4 h8B Nc3 e7 Ne2 Nd2 d3+ Kb1 d4 Nc4 d2 Rh4 d3 Qc2 d1Q Na5 Nd4 Bf7 Qh6 e8B Qe6 Bg2 f1B Nf3 Ne2 Rd8 Rc8 Ne5 Bc4 b8B Ng1 Bd6 Nb8 Bd7 Be2 Bb4 Bd5 Nec4 Bf6 Qd2 Qa4 Nb2 Bd1 Qc2 Qe4 Bcd2 Bb3 Bh3 Kh2 Bde6 g3 Rd4 g2 Bd5 Qg4 Re4 Bc3 Bf6 Rge8 Rd4 Re4 Bfg5 Rc7 Nbc4 Bb2 Ra2 Ba1 Nb2 Ra7 c7 Rb7 Bbe7 Rb4 Bf8 Rc4 Bfb4 Qf3 Rf4 Qe2 Rf6 Rh4 Bc8 Qg4 Rh6 Nh3 Re6 g1R Ree4 Rh1 Bde6 Qb5 Bg8 Kg3 Na4 Rc6 Qc1 Qf4 Rc2 Qg4 Nb2 Qa4 Rcc4 Rc5 Qc2 Kh2 Rc3 Ng1 Rcc4 Rb5 Rc6 Bc4 Qb3 Rc5 Qc2 Bb5 Bb3 Bc4 Ba2 Bf7 Bae6 Rc4 Bd5 Bg6 Bge6 Bh7 Bf7 Bg8
3BqR2/1BP5/qR1p3r/N2bk3/2PbB3/QpnBq2B/1N2b1r1/n1BN1K2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 f4 Kf7 g4 e5 a4 b5 c4 h5 g6+ Kf6 g7 e4 g5+ Ke7 f6+ Ke6 f5+ Ke5 a5 b3 a6 b2 c6 h4 c7 b4 f7 b3 f6 e3 a7 d6 g6 h3 Ne2 h2 Nbc3 b1B Na4 Bd7 Nec3 e2 Bh3 Be6 Nb2 Qd7 Rf1 h1Q Ra6 Ba2 Rb6 Nh6 g8B Qb7 g7 Qa4 Bh7 Bb1 g8B Bg7 f8B Nc6 f7 Bd5 Be4 Ne7 Bgh7 Ng4 Rf6 Rb8 a8B Qba6 Bb7 Bd3 Qd2 Ne3 Ncd1 Rc8 Qa5 Qe8 Qa3 Nc2+ Kf2 e1Q+ Kg2 Nf5 Be7 Qe3 f8N Be2 Ne6 Na1 Rf8 Nd4 Bd8 Nb5 Nd4 Nc3 B7f5 Rh6 Nc6+ Kf4 Na5 Bd4 Bf3 Ke5 Bd3 Rb8 Bfe4 Ra8 Bh4 Rd8 Bg5 Rd7 Bd8 Rg7+ Bg4 Bf3+ Kf1 Rgg6 Bd7 Rg2 Bh3 Be2+
2qr1r2/1RpnPp2/8/k2r1BB1/Nb2b1N1/1P1n1BBq/1Kb2QN1/R2B3B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 g4 Kd7 e4 h5 d4 a5 Kd2 c3+ Kc2 h4 g6 a4 g5 a3 d5 h3 b6 a2 g7 h2 g6 Na6 e6+ Kd6 e7 Kc5 e8B Kb4 b7 Nf6 g8B Bd7 b8N Bc8 d6 Bg4 e5 Nd7 e6 Ka5 g7 Qh4 Ne2 Qg3 Nf4 Ka4 Qe1 Qf2+ Be2 Ka5 Bh7 Qe3 g8B Qb6 Ng2 Nac5 Be4 Qb5 Qf2 Qc6 Bf4 Bf3 Bd1 Qb7 Nc6+ Ka4 Ne5 Kb5 Ng4 Rd8 Bg3 Qc8 Bgh7 Ka5 Bhf5 Nd3 b3 Be2 Bf3 Rh5 Rf1 h1B Re1 Bf1 Re4 Be7 Rb4 Rh8 Nd2 Rf8 Ne4 Be2 Nc5 Bf1 Rc1 a1R Rb7 Ra4 Kb1 Rd4 Na4 c2+ Ka2 Be2 Ra1 Rd5 Ka3 c1Q+ Ka2 Nb8 Bc6 Qh6 d7 Bb4 Kb1 Qh3 Kc2 Rde8 d8B Nd7 Bg5 Rd8 e7 Ne1+ Kb2 Bd3 Bfe2 Be4 N2e3 Bhg2 Bf3 Bf1 Bh1 Bfd3 Ng2 Bb1 Bb5 Bbc2 Bbe2 Bd2 Bf3 Nd3+ Ka3 Bb4+ Ka2 Nf4 Kb2 Nd3+
rB1b1BR1/qPR5/8/1P2prn1/B4RRN/Rpq4K/bN6/kn2qrRQ w - - 0 1 illegal: No proof kernel
Qbnn3r/2BBqbkr/1BNB4/1Nb2B1p/5n1p/2R5/RKNP1B1P/6n1 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 Na6 e4 Nb8 exf5 g6 Qg4 g5 Qh4 gxh4 Kd1 Kf7 Kc2 a5 g4 h5 b4 c5 f4 e5 f6 e4 g5 a4 f5 a3 d6 a2 b6 c4 d7 e3 b7 e2 b5 e1B b6 c3 Bd3 Qe8 d8B Nd7 b8B Bg7 g6+ Kf8 b7 Rh6 f7 Qe7 Ba3 Bf6 Bbc7 Qd6 b8N Nc5 Nc6 Bd7 Ne2 Qe7 Ned4 Bf2 Rc1 Ne6 Bc5 Be5 Nb5 Kg7 N1a3 Nf4 Kb3 Bd6 Nc2 Be8 Ba7 Bg3 Bf2 Rh7 Be4 Bc5 f8B+ Kf6 g7 Bf7+ Bd5 Rc8 Be6 Rb8 Bb6 Ra8 Bdc7 Re8 N2d4 c2 Kb2 Ra8 Bd7 Rc8 Rf1 c1N Nc2 Nce2 Rfe1 Ng1 Re3 Ra8 Ra3 Re8 Rc1 a1N Ra2 Qe4 Bfd6 Ne7 g8B Nc8 Ra5 Kg7 Ra2 Qe7 f6+ Kf8 Bf5 Nb3 Bd7 Nd4 Bf5 Bd5 f7 Kg7 Bd7 Nde6 f8Q+ Kg6 Bf7+ Kf6 Qg8 Nd8 Bg6 Bf7 Bgf5 Rf8 Qg4 Re8 Qf3 Kg7 Qa3 Reh8 Qa8 Nd5 Ne3 Be5+ Rc3 Nf4 Nc2 Bed4 Ba5 Ba7 Bab6 Bb8 Bh3 Be3 Bhf5 Bc5
N2bKn1r/3BrBb1/p1p5/2P5/4P2k/1b4qN/NQrn1R1R/1NBNNb2 w - - 0 1 illegal: No possible last move, all moves rejected
R1BR3q/K3PN2/p1R5/1r2Pr2/b2rpbR1/1n3QRb/k4NBB/2bRn3 w - - 0 1 illegal: No proof kernel
2n1k3/NKbp1n1b/r2b2RN/3BBn2/Rp5B/R1qP3R/Rrb3P1/1RQ5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 Ne7 a4 Ng8 axb5 c5 b4 cxb4 Kf2 h5 Ke3 a5 Kd4 f5 c4 a4 e4 f4 e6 f3 c5 a3 e5 f2 c6 a2 b6 h4 e7 h3 Kc5 h2 g6 Rh6 g7 Rh5 b7 Rh3 c7 Rh8 Kb6 Ra7 Nh3 Nh6 g8R Kf7 e8R Nc6 b8B Na5 e6+ Kf6 e7 Kf7 Rg6 Nc6 Nc3 Ba6 Nb5 Rg8 Rb1 a1B Bb2 Bb7 Be5 Qc8 Qc1 Ra2 Na7 Rb2 Be2 f1B Nf2 Ba8 Bf3 Bd3 Ng4 Bc2 d3 Rh8 Rd8 Rg8 e8R Ne7 Bf6 Be4 Bh4 Bf5 Rc6 Rg6 Bd5+ Re6 Rd6 Bh7 Rc6 Bg7 Rg8 Bh8 Rg6 Be5 Re8 Bd6 Rc3 Rb3 Rh8 Rb2 Re1 h1N Ra3 Ng3 Re2 Ngf5 Ra4 Qg8 c8R Qg7 Rc3 Nc8+ Kb7 Qe5 Rca3 Qc3 Nf6 Ke7 Ng8+ Ke8 Rd2 Nf7 Nh6+ Bf8 Be5 Rf6 Rhg8 Ra6 R8g7 Bd6 Rg3 Ra2 R7g6 Bb2 Rh3 Bc7 Qg1 Bc1 Rf2 Bf4 Qc1 Rb2 Bd4 Bfd6 Be5 Bd1 Rc2 Rb3 Rcb2 Bc2 Rba2 Rb2
b1BN1B2/p3B1Rb/1r2p1BB/nr3RP1/k2q1bb1/3Q4/n4BNP/2r2RK1 w - - 0 1 illegal: No proof kernel
1R2B2N/1qrQBn2/2PrP1pb/4nK2/8/1RnkB2n/NBb3Np/BqB5 w - - 0 1 illegal: No possible last move, all moves rejected
5Brr/Rq3r1P/RN1p1k2/R2P4/4R1Q1/1pbKN1r1/1RB1q3/1nNn2Rb w - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 gxh5 cxb4 a4 Kf7 axb5 Ke8 Ke2 Kf7 c4 g5 h4 a5 f4 e5 d4 e4 h6 e3 c5 a4 h5 a3 c6 a2 d5 d6 b6 g4 b7 g3 f6 g2 h7 Ra5 c7 Nd7 b8R Ra4 h6 Be7 f5 Bf8 Na3 Qe7 Nc4 Nb6 Kd3 e2 Ne3 e1R Qg4 Qe6 Ne2 Ra8 Rg1 Bg7 Rb7 b3 Ra7 Bd7 c8N Nc4 Nb6 Nd2 Rb1 a1Q Rb2 Ne7 Ra5 Rhb8 h8R Nb1 h7 Rg8 Bd2 Qa3 Nc1 Qb4 Be2 Rab8 Bd1 Rf1 Bc2 Rf3 Bc3 Rg3 Be5 Rgf8 Rg8 Bh8 Re1 g1R Bf4 Rf1 Bh6 Rbe8 Rg6 Rg8 Bf8 Rf2 Rg1 Bg7 Rh6 Rb8 Rh4 Qb5+ Nc4 Qb7 Nb6 Rd8 Qh3 Rf1 Re4 Re8 Qg4 Bb5+ Kd4 Be2 Ra7 Bf3 Kd3 Bh1 Ra5 Rb8 Ra6 Ke8 f7+ Kd8 Ra7 Bc3 f6 Qe5 Bh6 Nf5 f8R+ Qe8 f7 Rh8 Rg8 Rff3 f8R Ra8 Rea4 Ke7 R4a6 Qh5 Rb8 Kf6 Rge8 Qh2 Bf8 Qe2+ Ke4 Rg8 Rbc8 Rb8 Rc5 Rh8 Rca5 Rc8 Re7 Re8 Bh6 Reg8 Bf8 Rf2+ Qf3 Kg6 Re8 Qd2 Ng2 Ne3 Qg4+ Kf7 Re5 Nd1 Re8 Rff3 Ne3 Qh2 Kd3 Rf6 Qc8 Kg6 Qh3 Rf7 Qg4+ Kf6 Re4 Qe2+
rB1N1B2/4N2p/1P3n2/1nB1r3/N2pQr2/1q1RN1rP/2N3b1/RK1N1qbk w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 d4 Kd7 e3 e6 d6 Na6 d5 Qe7 Bc4 Nb8 Ba2 Qd8 Bc4 Ke8 d7+ Ke7 Ba2 Kd6 Bb3 Ke5 d6 Kf5 Bd5 exd5 Bd2 Ke5 Bc1 Ke6 Kd2 Kf5 Kc2 Ke4 b4 f5 g4 c5 h3 a5 b6 a4 g6 a3 b5 c4 b7 c3 g5 f4 g7 d4 b6 f3 g6 f2 Qe1 f1Q Nf3 a2 Ba3 Ra7 Bc5 Qc7 d8N Qb5 d7 Nh6 g8N Ng4 g7 Ra3 Ne7 Qa6 g8N Qg3 Nh6 Qb5 Nhf5 Nc6 b8B Qf1 Kc1 c2 Nc3+ Kd3 e4 Nf6 e5 Bh6+ Ne3 Re8 e6 Bb7 Na4 Ke4 Rh2 Na7 Rd2 Nb5 Nd1+ Be3 Kb2 c1R Rd3 Bd5 Qe2 Rac3 Ne1 Ba8 Qc2 Bg1 Qe2+ Qe3 Nc2 Bc6 Qe1 Kf3 Qh4 Kg2 Qe4+ Qff3 Nc8 Rf8 e7 Kh1 e8N Qe2 Nc7 Qf1 Ne7 Bb7 Nde3 Re1 Ncd5 Re2 Nd1 Rf7 Qf4 Re5 N5e3 Qg3 Kc1 Bg2 Qe4 Qgf3 Ndc6 Qg3 d8B Rf8 Bdc7 Qg8 B7d6 Qb3 Rb1 a1R Nd8 Ra3 Ra1 Ra2 Nb2 Ra7 Na4 Rf7 Ng6 Ra8 Bf8 Rg7 Ne7 Rg3 Ba3 Rcc5 Bb4 Rf5 Ba3 Rce5 Bc5 Qe6 Kb2 Rf4 Kb1 Qb3+
3Kb3/1pRB1rNn/b4k2/n3rBp1/N6P/3N1Q2/Nbb3Pq/1qNR1B1N w - - 0 1 illegal: No proof kernel
r1RNBn2/R1KpPp1n/1r5r/B2P1b1N/1R1Rr3/1bb3Q1/3RR2r/5B1k w - - 0 1 legal: proof: b4 g5 f4 e5 fxe5 b5 h4 gxh4 a4 Nc6 axb5 Rb8 c4 Ke7 c5 Bg7 b6 Ke8 b5 Qf6 b7 Bf8 Ra5 Ra8 Ra4 Nb8 Ra1 Qb6 cxb6 Bd6 Nc3 Be7 Nb1 Bf8 Kf2 Ke7 Ke3 Ke6 Ke4 h5 g4 c5 d4 a5 g5 a4 d5+ Ke7 e6 Kd6 g6 c4 e7 c3 e8B h3 g7 a3 Nf3 c2 Ne5 h4 Qd3 h2 Bd2 c1R Nc3 a2 Nc6 h3 Qg3+ Kc5 Ke5 Rb1 e4 Na6 b8R Nf6 g8R Nc7 b7 Ne6 b6 Bg7 Nd8 Rh6 Ne2 Nf8 Ba5 Rb3 Re1 a1R Nf4 Ra4 Re2 Rc4 Rg1 h1R Rgg2 h2 Nh5 Bh8 Rg4 N6h7+ Kf4 Kd4 e5 Rcb4 e6 Re3 e7 Re4+ Kf5 Rb5 Qd6 Kd3 Qc7 Bc3 Qg3+ Kd4 Rf4 Rg1 Rh4 h1B Rgh2 Rg2 Rf4 Ra7 Ra8 Rb3 b8R Ba6 b7 Rbb6 Rfh4 Bc4 Rc8 Bb3 b8R Rf2+ Rf4 Bf3 Rd2+ Ke3 Rb7 Rg2 Rab8 Ra8 Ra7 Rbd6 Rb4 Rb6 Rh1 Rh2 Rg4 Ree6 Rgd4 Re4 Rg1 Rh3 Rgg2 Rh2 Qd6 Bfd1 Rge2+ Kf3 Qg6 Bdc2 Qg8 Reh4+ Ke5 Bf5 Qg5 Rb5 Qg6 Re4+ Kd6 Rbb8 Kc7 Rb6 Re1 Ree2 Qg5 Kf2 Qf4+ Kg1 Qe3+ Kh1 Qg3 Re5 Ree2 Re4
3N2B1/1rb3N1/2KB1p1B/bnP2N2/1R1r4/NnnbbP2/b3p1Q1/2RNkN2 w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 c5 gxh5 d4 d3 Qd5 exd5 c4 Qg4 cxd3 Qe2 Kd7 Qd1 Ke8 Kd2 Kd7 h4 Kd6 c4 Ke5 b4 Ke4 f3+ Kf4 h6 Kg3 b6 Kf2 b7 g5 c5 a5 h7 e5 d6 a4 b5 e4 d7 f6 d8N a3 b6 g4 h5 g3 h6 g2 Ne2 g1B Qc2 a2 Ne6 Ne7 Rh4 Ra5 Ng7 Bh2 Nbc3 Nd5 Ng3 Rg8 h8N Ra4 h7 Be6 Nf7 Nc6 b8N Nc7 h8N Nb5 b7 Na5 Nh6 Rc4 Rb1 a1B Na6 Ra4 b8B Ba2 Nhf5 e3+ Kd1+ d2 Bc4 Nb3 Nf7 Bd6 Nb4 Bc7 Nd8 Ba5 Nf1 Bhc7 Be6 Re8 Bg8 Re7 Qb2 Rf7 Kc2 d1N Kd3+ Ke1 Kc4 d3 Qg2 e2 Bh6 d2 Kd5 Bb2 Kc6 Bc1 Ne4 Re7 Nf2 Ndc3 Ra1 d1B Rd4 B7f4 Bd6 Bc2 Nd1 Bce3 Rc1 Rb7 N1g3 Bd3 Nc2+ Kd2 Na3 Ke1 Nf1 Be5 Rg4 Rd4 Rf4 Rd5 Rb4 Rd4 Bf8 Bb8 Bd6 Bbc7
BQ1R3R/1B3qr1/4BN2/1bnr2p1/r2N2PN/Bbp3PK/1rb2b1B/2k4B w - - 0 1 legal: proof: c4 e5 f4 a5 fxe5 d5 cxd5 Nh6 b4 axb4 g3 Ng4 h3 Nd7 hxg4 Nf6 Bh3 Ng8 Bg2 Qd6 Bf1 Qd8 Kf2 Ke7 Kg2 f5 e4 c5 a4 b5 d4 h5 a5 g5 e6 Kd6 a6 c4 e7 b3 e8B h4 a7 b2 Bf7 f4 Nd2 b1R Ba3+ b4 Qb3 f3+ Kh3 c3 Bg2 f2 Ngf3 f1B Be6 Rb2 Rd1 Qd7 Rh2 Bb5 Bh1 Qf7 e5+ Ke7 Ne4 Nf6 Rd3 Nd7 Nf6 Nc5 Rd1 Rg8 d6+ Kd8 d5 Rg7 d7 Kc7 d8N Kb6 d6 Ka5 d7 Bd6 Qc4 Ka4 Nc6 Be7 Qd3 b3 d8B Bb7 Ncd4 Bd5 Bc7 Bd8 Ba5 Bb6 Qb1 Rd8 a8B Bdc4 Bf5 Rd5 e6 Ba7 e7 Bb6 e8B Ba7 Rg2 Bb6 Kh2 h3 Nh4 Ba7 Rgd2 Bb6 Bec6 Ba7 Kg1 h2+ Kg2 Bb6 Kh3 Ba7 Bf3 h1R+ Rh2 Re1 Bb6 Re4 Be6 Rf4 Bb4 Re4 Bh1 Rf4 B4a5 Ka3 Bcb7 Re4 Qc2 Ka2 Bb4 Rf4 Rd3 Ka1 Qg2 Kb1 Ba3 Kc1 Rd2 Be2 Qe4 Bd1 Qe5 Re4 Qb8 Rf4 Nc6 Ra4 Rd3 Na6 Bg1 Bf2 Nd4 Nc5 Bb4 Rb1 Ba3+ b2 Ndf5 Bb3 Rd4 Re5 Rd8 Rd5 Nd4 Na6 Ng6 Be3 Kg2 Bf2 Rhh8 Nc5 Kh2 Ra1 Kh3 Ra2 Bb4 b1B Ba3+ Rb2 Bh2 Bf5 Nh4 Bfc2
b3Nr1r/1N2p2b/r1q3Q1/b1Nb1Nr1/1B2RNB1/3n2BP/1KR1P1Np/7k w - - 0 1 illegal: No proof kernel
1N1r1rb1/b3r3/5Nrr/pNp1NP1B/3r1B2/P1B4N/2k3n1/RRN1KnQ1 w - - 0 1 legal: proof: g4 b5 d4 g5 c4 bxc4 h4 e5 dxe5 f5 gxf5 g4 Bg5 Qf6 Bc1 Qg5 hxg5 Bc5 Rh2 Ba3 Rh1 Bf8 f6 Kf7 f4 Kg6 b4 Kf5 f7 Ke4 f5 a5 a3 d5 e6 h5 e3 h4 g6 c3 e7 c2 e8N d4 g7 d3 b5 g3 b6 d2+ Ke2 h3 b7 h2 Nf3 g2 Ng1 Ne7 g8N Be6 Nh6 Ng6 Ng4 Bc5 f8B Nd7 Bg7 Rd8 b8N Nh4 Bc3 Nf6 Qe1 c6 Nc7 d1R Nb5 Rhf8 Qg3 Bg8 Nd2+ Kd5 Qf2 Ne4 Nb3 Nd2 e4+ Kc4 e5 Ba7 e6 c5 e7 Bb6 e8N Ba7 B1b2 c1R Nef6 Rc2 Bc1 Ra2 Nh3 g1R Ng5 Rg3 Rg1 h1R Bg2 Rh2 Bf3 Ng2 Qe3 Rh4 Nh3 Rh6 Rf1 Rc2 Qg1 Rb2 Re1 Nf1+ B1d2 Rbb1 Bf4 R1d4 Kf2 Rbd1 Ke2 R1d3 Reb1 Re3+ Kf2 Kd3 Nc1+ Kc2 Be2 Re7 Ne5 Ne1 Bh5 Rgg6 Ke2 Ng2 Kf2 Nh4 Ke1 Ng2+
3N4/k1BB3R/1bbB1pPR/N3B3/2R1r2r/PB1rpq1n/1Qp2B2/Kb2n3 w - - 0 1 illegal: No proof kernel
1Kn1Nqkr/1P1Rr1p1/4N1Bp/B1R5/5Rn1/n1r2b1N/2Q1P1Rp/R3b1R1 w - - 0 1 illegal: Other
4b1Nk/n1q1B3/P2pQ1q1/2N5/NRp1rNK1/p1P2NR1/5brq/2RBNn2 w - - 0 1 illegal: No proof kernel
b3B2B/3N2Pq/RRq1r2N/3Pn3/Q3Rb2/Nn1Kpp1p/k2N2N1/rNr5 w - - 0 1 illegal: No proof kernel
k2N4/1bnRb1pp/2RRqP2/4KQ2/qRB5/4B2p/R1PrnN2/r1R2Nr1 w - - 0 1 illegal: Other
KN2qN1q/1qpb1n2/p4b1p/3N3B/RRQP2NP/2r2rB1/1nN5/B1k1N3 w - - 0 1 legal: proof: g4 b5 a4 f5 axb5 fxg4 d3 d5 c3 d4 cxd4 e5 Nc3 e4 dxe4 Bd6 Nb1 Bf8 Kd2 Kf7 Kc3 Kg6 Kc4 h6 f4 g3 h4 a6 b4 g2 e5 Kf5 e4+ Kg6 f5+ Kh7 f6 Kg6 b6 Bg4 f7 Bh5 e6 Qg5 b5 Qg3 Kd5 Nc6 e5 Kf5 e7 g5 e8N g4 b7 Be7 b8N Bf6 f8N Qd3 e6 g3 b6 Ne5 e7 Ra7 b7 Qd2 Ra4 Kf4 Be2 Ke3 Qb3+ Nd3 Kc6 Bg4 Bb2 Qe1 Na3 Kd2 Ba1 Kc1 Nf3 g1Q Nc2 g2 Qc4 Nb2 Rh3 Qb4 Nfe1 Qe3 Rg3 Bf5 Bh5 g1Q Rg5 Bh3 Rb5 Qg7 Rb6 Qbb3 Rbb4 Rh7 Nfd7 Qh8 Nf8 Bg7 Nf6 Bd7+ Kc5 Ra8 e8N Ne7 Nd5 Nc8 Nef6 Nd6 Ng4 Nf7 Ra2 Bf5 Kc6 Bf6 Raa4 Qe5 Nbd7 Rc8 b8B Rg7 Kb7 Qe8 Ba7 Rg8 Nb8 Bd7 Ka8 Qf3 Nge3 Rg3 Bc5 Qfe4 Ng4 Rc3 Bd6 Qf3 Ka7 Qh1 Nc6 Rb8 Bg3 Rb5 Nb8 Ra5 Nf4 Rf5 Nd5 Rff3 Ka8 Qf1 Qa2 Qb5 Qc4 Qb7+
6B1/kP3b1p/q2Q4/RB2KB1n/1p1r2pB/2rqB1PR/4NNB1/n3qbR1 w - - 0 1 illegal: No proof kernel
1Rn5/B1N2n1R/2Bq2n1/1KPpB1Qp/6r1/2R2BNP/2pBb3/2bkrnB1 w - - 0 1 illegal: No proof kernel
1R2B3/Qb3n1P/1B2Bn1B/3p1rB1/4pp2/3bPb2/KR2NbBN/1Rr1k1q1 w - - 0 1 illegal: No proof kernel
n1NnB2B/p1PR1RR1/4k3/qr1b4/P2n2Rp/5RQb/2Nn1pKR/rN6 w - - 0 1 illegal: No possible last move
2n1RBR1/1r2p1bk/1B6/2rBP1n1/K1R1R1pq/1NQ2P2/3Nnr1p/5qRR w - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 axb5 f6 cxd5 Bf5 h4 Bg6 h5 f5 hxg6 fxg4 e4 h5 d4 a5 Kd2 c5 Kc3 a4 b4 c4 g7 Kf7 f3 Kg6 e5 a3 d6 g3 d7 h4 d5 h3 b6 g2 b5 a2 Kb4 g4 d6 h2 b7 c3 b6 c2 Qd2 Kh7 Bc4 Qc7 d8B Nf6 g8R Nh5 d7 Nf4 Ne2 g1N Nd4 Ra3 Bd5 Nfh3 Qc3 Ng5 Nd2 Ne2 N4b3 Qc6 Bc7 Ra5 d8R Bg7 Rc8 Nd7 b8R Qf6 b7 Rc5 Ka4 Qh6 Rge8 Qh4 Bb6 Rg8 Ra8 Rf8 b8R Rf4+ Ka3 Rb4 Ra4 Rbb5 Re4 Rb4 Bb2 c1Q Ra8 Rbb5 Ka4 Qf1 Rb1 a1R+ Ba3 Qfh3 Rbg1 Rf1 Bc1 Rf2 Rg8 Qf1 Rce8 Rc7 Rac8 Rb7 Rcc4 Rc5 Nb1 Nh3 Bh6 Ng5 N1d2 Nb8 Rg2 Nc6 Rg3 Na7 Rgg1 Bh8 Bg7 Nc8 Bf8 Bg7
n3Br2/1Pn2b1b/kpB2bQ1/pn1RR2R/1P3BK1/2Rb4/2p1RRN1/1q2N3 w - - 0 1 legal: proof: e4 f5 exf5 d5 h4 g5 c4 gxh4 cxd5 b6 a4 Nc6 a5 Rb8 a6 Rb7 axb7 Nb8 Na3 a6 Nb1 a5 Ke2 Kd7 Kf3 e5 d4 c5 g4 Kc7 b4 h5 g5 h3 f6 h2 f7 c4 d6+ Kc6 d5+ Kb5 d7 h4 d6 h3 g6 e4+ Kg4 e3 f4 e2 f5 e1N g7 Nc6 f6 Rh7 Ra3 Nd3 Nf3 c3 Nbd2 c2 Nh4 Qe8 Ng2 Na7 Rc3 Be7 f8R Rh8 f7 Ka6 Nf3 Nb5 Bf4 Nc5 Qd3 Ne6 d8R Nc7+ d7 Bf6 Qg6 Ne7 g8B Na8 Nfe1 Nd5 Be2 Ndc7 Bf3 Qe3 Rfe8 Qc1 f8R Qb1 Bf7 Rg8 Re2 Rh8 Rf1 h1B Rde8 h2 Bc6 Rg8 Rff2 Rh8 Ne3 Bd5 Re5 h1B Be8 Bhe4 N3g2 Bd3 Rf7 Ba2 Rh7 Bf7 Rh1 Rf8 Rhh5 Ne6 d8R Nec7+ Kf3 Bce6 Rdd5 Bg8 Kg3 Bef7 Kg4 Bh7
B2B1N2/r2K4/1N1B1BPp/4B1qk/3bp3/Np1b3P/Qb6/nBn1RbnR w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 b4 a6 f4 Nd7 e5 Nb8 e6 a5 fxg5 Ra6 d3 Rd6 d4 Rd7 d6 axb4 d5 Bg7 exd7+ Kf8 Nf3 Bh6 Ke2 Kg7 Ke1 Kg6 Ng1 Bf8 Kd2 e5 Kd3 c5 Ke4 h6 g4 b3 a4 f6 h3 b2 a5 c4 a6 b4 a7 c3 a8B b3 Nf3 c2 Bd3 Qe8 d8B Bg7 d7 Ne7 d6 Nd5 Bf4 c1B Qe2 Ne3 Na3 b1N Nd2 Nc6 Be7 Bb2 d8B Qg8 d7 Ba6 Bd6 Nd4 Ndc4 Nec2 Nb6 Rh7 B8e7 Bh8 d8B Nf3 Bh2 Qg7 Kd5+ e4 Ke6 f5 Kd7 Nc3 Rae1 Na2 Bhe5 Na1 Bb1 f4 Qg2 Nc1 Qc2 Kf7 B7f6 Bd3 Qd2 Bd4 Qa2 Ng1 g6+ Kg8+ Kc8 f3 g5 Qe7 g7 Kf7 g8N Kg6 Bg3 f2 Bge5 Qg7 Ne7+ Kh5 Ng6 f1B Nf8 Qe7 g6 Bb2 Bg7 Qg5 Bgf6 Ra7 Bfe7 Ra4 Kd7 Bf6 Bh2 Bfd4 Bf6 Ra5 Bhe5 Ra7+
2qr4/1r2k2n/2PN4/Ppp3N1/B4RQp/K2n4/1pbbnNRR/2NN2BN w - - 0 1 illegal: No proof kernel
1bk2rRB/6nb/1ppBpB2/p3P1R1/nPQK4/N1NBb2r/2B3R1/3qB3 w - - 0 1 legal: proof: g4 h5 a4 g5 c4 d5 cxd5 b6 a5 Qd6 a6 Qc6 f4 hxg4 fxg5 Qb7 axb7 Rh5 Qb3 Rh3 Qd1 Rh8 Kf2 Kd8 Ke3 a5 b4 f5 h4 e6 d4 c6 g6 g3 d6 g2 d5 f4+ Kd4 f3 e4 f2 g7 Bd7 h5 Ra7 e5 Be8 h6 Rh7 d7 Rh8 h7 Na6 b8B Bg6 Qc2 Rc7 Ne2 g1B Rh2 Bd6 Nec3 Ne7 g8B Be8 Bd3 Bh5 Na3 Rc8 Rg2 Ng6 Bd2 Bc7 Be1 Nh4 Ra2 Bd6 Rg5 Bg6 Qb3 Bf5 Qc4 Nc5 Bf7 Na4 Bg6 Rf8 h8B f1Q+ Rf2 Qe2 Bh7 Qd1 Bc7+ Ke7 d8B+ Kd7 Bdf6 Rce8 Bg6 Kc8 Bb8 Bc7 d6 Re7 Bh7 Rd7 Bg6 Rh7 d7+ Kb7 Ba7 Bb8 d8R Rh5 Be8 Bh7 Bg6 Bd6 Bb8 Nf5+ Ke4 Rh1 Rfg2 Be3 Bc2 Rh3 Re8 Rf7 Rg8 Rf8 Bd3 Kc8 Bc2 Be7 Bd6 Ng7 Bd3 Bd8 Bc2 Bc7 Bf5 Bd2 Kd4 Bb8 Bfd3 Be3#
3NNKb1/n4R2/p2b3Q/1P1Br2R/N2B1Nk1/p1Nnr2p/p3q1P1/5rNB w - - 0 1 illegal: Other
1NB2r2/2b1Pkpq/p1Rb1B2/p3Q3/B2n4/2Np2RP/2NBbrBK/1n4B1 w - - 0 1 illegal: No proof kernel
K5qr/R1b1PR1Q/1N1pR1p1/N1n1nB2/1P3q2/p2R4/b1R1rkBp/B3R3 w - - 0 1 illegal: No proof kernel
2q4B/Q1N1N1p1/Rn3pPR/3NB3/bpqN4/K2n2rr/1pN4P/1k1Br2N w - - 0 1 illegal: No possible last move, all moves rejected
N1Nr2N1/1p1RRq2/PP1p4/Q1pbnN1B/4b2K/1Bb5/1q1p4/BN3knN w - - 0 1 illegal: No proof kernel
r1n1N2r/2nK2NB/5B2/p2k4/1Rrp1Q1N/1BB1RpP1/1BrpBP1q/5b2 w - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 e4 d5 e5 Kd7 g6 Ke8 Kd2 Bh6+ Ke2 Bd2 Nc3 Be1 Nb1 Bb4 Be3 Bb7 Bc1 Bc5 Ke1 Bd6 exd6 Bc8 Kd2 Kd7 Kd3 Ke6 b4 h5 c4 f5 c5 a5 b6 h4 c6 f4 c7 h3 b5 h2 d7 Na6 g7 Qe8 d8N+ Kd6 b7 e5 b8B Bg4 c8B+ Nc7 g3 Qh5 b6 Qe8 b7 Rh5 Bf5 Rh6 Ra4 Qc6 Na3 Kc5 Bb2 Rh4 Nf3 Na6 Nc4 Rh5 Rb4 Bh3 Qa4 Qd6 Be2 Rh8 Nh4 f3 Bh7 Qh6 Nd6 Bf1 Ne8 Ne7 g8B Nc8 Bc7 Qh5 b8B Qh6 Rg1 h1R Be6 Bg2 Ra1 Rc1 Ra3 Bf1 Rab3 Rc4 Bf7 Qb6 Bc3 Qb5 Ne6+ Kc6 Bd8 Nc7 Bf6 e4+ Kc2 e3 N6g7 Kc5 Kd3 Qd7 Bb2 Qh3 Ra3 Qh2 Bfg8 Nb5 Bbe5 Nc7 Qd7 Na7 Qf5 Nc8 Qf4 Kc6 Bc3 Kc5 Kc2 d3+ Kb3 d2 Ka4 Kc6 Bb2 Rc2 Bec3 d4 Bb3 Na6 Bec4 e2 Bcd3 e1R Be2 Kd7 Kb5 Rec1 Kc4 Nc7 Kc5 Na6+ Kd5 Nc7+ Ke5 Kc6 Kf5 Nb5 Ke6 Kc5 Kd7 Nc7 Ba1 Ra2 Bcb2 Rc4 Bc3 Rc2 Bab2 Kd5 Ra1 Kc5 Bed3 Na6 Re1 Kd5 Re3 Nc7 Be2 Ra6 Ng2 Ra7 Nh4 Ra8
4Rq1N/1N2PKp1/N3n1R1/b1p1N1r1/1p1k2B1/rPp1N2N/1npbQ2B/3R4 w - - 0 1 illegal: Other
3RR3/2r1B1q1/2bQ1n1B/bN4pN/2k1BBB1/K1pp1p1p/1P1B3P/1N1n1b2 w - - 0 1 illegal: No proof kernel
B2b4/3p1qPB/2RR4/Bnbp1pkr/b2n1NBp/3PBp1Q/B6R/1K3N2 w - - 0 1 illegal: Other
4rBB1/bkp1N1Nn/1B2rQ1P/B2Rp1p1/1Br2pq1/B3p3/1NP1bR2/1K6 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 d6 axb5 Nc6 f5 Nd4 e4 Ne6 fxe6 d5 Bh3 dxe4 Bg2 Qd7 Bf1 Qd8 d4 a5 Kd2 f5 h4 g5 b4 a4 b6 f4 h6 a3 h5 a2 d5 Nf6 d6 Ra7 b5 Ng8 b7 Ra8 b8B Qf6 e7 Kd7 e8N Ba6 h7 Kc8 h6 Kb7 b6 Qf5 d7 Nf6 d8B Be2 Ng7 Nh5 Rh2 Ka6 b7 Qh3 Nf3 Bb5 Ba7 Bc4 b8B Kb7 Bb6 Bd5 B8a7 Qc8 Nc3 Be7 Ba5 Bb3 Ba3 e3+ Kc1 Rb8 Rf2 Ba4 Nd4 Qd7 Bc4 Bc5 Bg8 Bb5 Nc6 Ka6 B7b6 Be2 Ne7 Bb4 Na4 Qg4 Nb2 Kb7 Qd6 Bc5 Qf6 Rc8 Rb1 a1R B3b4 Ra2 Ra1 Rb8 Kb1 Ra4 Ra3 Ra8 Rd3 Ra6 Rd5 Bd4 Nef5 Bc5 Be7 Bd4 Ba3 Rc4 Beb4 Bc5 Ne7 Bd4 Bf7 Re8 h8B Bc5 Bg8 Bd4 Qf8 Nf6 Qf7 Nh7 Qf6 Qg3 Ne6 Qf3 Bg7 Qg4 Bf8 Bc5 Ng7 Bd4 B6c5 Re6 Bd6 Ba7 Bdc5 Bb8 Bcb6 Ba7
2N2KN1/1nQ3b1/Nr1B4/1n2Np2/k1BBpPb1/3bN1rN/1r1rP2R/1n3Rq1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 b4 Kd7 d4 c5 Kd2 a5 Kd3 h5 Ke4 e5 Kf5 h3 f4 a4 g4 a3 b6 h4 b5 h2 b7 c4 g5 h3 d6 a2 d5 c3 g6 c2 g7 Na6 b8B Nf6 g8N Rh6 b6 Nc7 b7 Ra3 Nc3 Nb5 Be3 c1R Bd4 Ne4 Qc2 Qb6 Bg2 Bg7 Nd1 Rb1 Ne3 Rb2 Rf1 a1N Qc5 Nec3 Qc7+ Ke8+ Kg5 Nb1 Be4 f5 Bd3 e4 Bc4 Re6 Kh5 Nb3 Kg5 Na5 d7+ Kf7 d8N+ Ke8 d6 Qc5 Ng4 Rg3 Nc6 Rh6 Na7 Be6 Qb6 Kd7 Nc8 Rf6 Qa7 Kc6 d7 Rh6 Bd6 Qb6 Bb3 Bc4 Ba2 Bd3 Bc4 Rh5+ Kg6 Rh6+ Kf7 Rg6 Nf3 Qc5 Ng5 Rd2 Rhg1 h1B Ne3 h2 Nh3 Bf3 Rg2 h1R Rh2 Bg4 d8N+ Kd7 Ne6 Kc6 Nf8 Rh6 Ng6 Rb2 Rf3 Rd1 Rf1 Rdd2 Qb8 Bh8 Kf8 Bf6 Nce7+ Kb6 Ne5 Bg7+ Ke8 Re6 Qc8 Rg6 b8N Nb7 Na6 Ka5 Qc7+ Ka4 Nc8 Rh6 Bf8 Rb6 Bd6 Qa3 Kf7 Qb3 Ke8 Qd1 Ke7 Qe1 Ke8 Qf2 Ke7 Qg1 Kf7 Bf6 Kf8 Bg7+
1K3RNN/1n1r3q/pQp3Bb/N1b3k1/2r4R/P1nq4/R1Pq2Np/N1Bb3N w - - 0 1 illegal: No proof kernel
2B3rb/p2q3B/2n4R/pB2B1BQ/2N3Rr/2pnq1Nb/PBP2k1N/K1r2r2 w - - 0 1 illegal: No possible last move, all moves rejected
1B3n2/p1R2qbB/3prN1Q/1nrR1n1N/1N2p3/2k1Bp2/4PP2/N2KNbbN w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 h4 e5 b4 Ke7 c4 Kf6 c5 g5 c6 d6 c7 e4 b6 Ke5 b5 f5 b7 g4 h6 g3 b6 d3 h7 Kd4 h5 g2 h6 f4 Nf3+ Kc4 Nbd2+ Kc3 Nb3 g1B Be3 Qg5 Rh5 Qe5 Qc1+ Kb4 Kd1 d2 Ne1 f3 Bh3 Qc3 Rd5 Qc4 Bf5 Nd7 b8N Ndf6 b7 Qd3 Nd7 Qc3 b8B Ng4 Nf6 Bb7 c8N Bc6 Ne7 Bd7 Nc6+ Kc4 Ra6 Bg7 Nb4 Ne7 Na1 Re8 h8N Ne5 h7 N5g6 Nf7 Nf8 h8N Rc8 Ng6 Rc5 Nh6 Bc8 Bg4 Nf5 Rc6 Bd7 Rc7 Be6 Nbc2 Qb3 Nf4 Kc3 Bh5 Bd7 Bg6 Bc8 N4h5 Qb7 Rc6 Qf7 Bh7 Bd7 Nhg4 Bc8 Nh2 Bd7 Nf1 Be6 Bc7 Re8 Nfg3 Bc8 Nh1 Re6 Bb8 Nh4 Bh6 Re8 Bg5 Bh3 Rc7 Re6 Bh6 Bf1 Bf4 Kc4 Bh6 Nf5 Bf4 Nd4 Bh6 Nb5 Nb4+ Nc3+ Kc2 d1N Qd2 Nb5 Qg5 Ne3+ Kd2 Nc2 Kd1 Kc3 Qg6 Ncd4 Be3 Nf5 Qg5 Qg8 Qh6 Qf7
K1bB4/2bppk1B/1B1P1nR1/Bpr1BN1n/2p5/nPQBr3/4q1b1/RR3N2 w - - 0 1 illegal: No proof kernel
2NKQ3/4B3/p2bR1qk/1pn4n/RPb1NN2/2pq1r1N/B1Pp2N1/1N1r1nB1 w - - 0 1 illegal: No proof kernel
2Nq2K1/N2ppb1r/B3p1pR/2Q1Rb1n/NN4P1/1rq2n1B/2NP4/b1kN2B1 w - - 0 1 illegal: No proof kernel
1k1B1bQK/bB1Bp1r1/2p1RB1B/1pN1b2r/NP2P3/1n2qR2/2p3nB/1b1N4 w - - 0 1 illegal: No proof kernel
2b1R1rb/nb2N2r/1p1p4/7K/BBR1p2B/p1NBqR2/P1QpP2k/3BB1n1 w - - 0 1 illegal: No proof kernel
3B1r2/2QB2r1/K2R1B1N/RB2bPB1/3r3N/q2n1N2/2r1P1b1/r2k1qN1 w - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 f5 c4 d5 cxd5 h5 g4 a5 gxh5 a4 Qd4 Kd7 Qg4 Nc6 a3 Na5 bxa5 b4 axb4 fxg4 b5 Ke8 Kd2 Kf7 Kd3 c5 Kc4 g5 f4 a3 h4 a2 e6+ Kf6 e7 Kf5 e8N Ke4 b6 g3 Kb5 g4 d6 c4 b7 g2 b8Q c3 a6 g3 a7 c2 d7 Bd6 h6 Ne7 h5 Rh7 Nf6+ Kd4 Ng8 Rh8 h7 Qe8 h6 Ke4 Nd2+ Ke3 Qc7 Qf8 d8B Bh3 Ka6 Nd5 Ndf3+ Kf2 f5 Be5 Bcg5 c1R Rh2 Rc8 a8B Rc2 Bc6 Nf4 Bd7 Nd3 Rh1 Rb8 Rd1 Rb4 Rd2 Nb2 Rd6 Nd3 Bb5 Rd4 Bd7 Bg4 Rh4 Bh3 Re4 Bf4 Re5 a1R+ Ra5 Be5 Ne7 Rac1 Ng6 Ra1 Ngh4 Rg8 h8N Qe7 h7 Rf8 Nd2 Ke1 Nf7 Kd1 h8B Nb2 Rh6 Qa3 Rd6 Nd3 Nh6 Rb2 Bhf6 Rc2 Ngf3 g1Q Bg2 Qf1 Bh1 Bg2 Ng1 Ba8 Bd5 g2 Ndf3 Bc6 Bc4 Bd5 Nh3 g1R Bcb5 Rg2 Nhg1 Bc6 Bc1 Rg7 Bcg5 Be4 Ne1 Bh1 Nef3 Bg2
k1q4q/1q6/2P1Pb2/b2KN3/1pr1n2N/1pBR2Q1/Q1NN1BN1/1R4Nq w - - 0 1 legal: proof: g4 a5 b4 c6 b5 b6 Bg2 Ba6 bxa6 b5 Bf1 b4 Bg2 Ra7 f4 Rb7 Bh3 Rb5 Bg2 Rg5 fxg5 Qc7 Bd5 Qc8 Bg2 Qd8 a4 e5 d4 c5 dxe5 Nc6 h4 Na7 h5 g6 Bd5 Nb5 Bb3 c4 hxg6 cxb3 axb5 Bg7 Kf1 Bh6 Ke1 Bf8 Kf2 d5 Ke3 Kd7 Kd4 Kc7 e4 Kb8 c4 f5 g7 h5 c5 a4 e6 f4 g6 f3 c6 a3 e7 f2 e8N f1Q a7+ Kc8 a8N Kb8 b6 h4 e5 h3 e6 h2 g5 a2 b7 Nh6 g8Q Qb5 g7 Rh7 g6 Qd7 Na3 Qa5 Be3 Bd6 Nf6+ Qe8 Qd2 Ng4 Nh5 Nh6 Rd1 Qb5 Nb6 Ka7 b8B+ Ka6 Nc2 Qf8 Bf2 Be7 Nf4 Bd8 Be5 Ka7 Nc4 Nf7 Ng2 Ka8 Qe2 Qb7 Rd3 Qc8 Nd2 Nd6 Kc5 a1B Bc3 d4 Kd5 Qb8 Qf3 Qc7 Qg3 Qb7 Qh8 Qe8 g8N Ne4 g7 Rh4 Nf6 Ba5 g8N Qec8 Ne7 Rf4 Ng6 Rh4 Re3 d3 Nd7 Rg4 Nde5 Rf4 Nf1 d2 N6h4 d1Q+ Rd3 Qh5 Nd2 Qhe8 Qh5 Qh8 Qe2 Rg4 Nh3 Bb2 Rb1 h1Q Ng1 Nc5 Qd1 Rc4 Qc1 Ba1 Qa3 Ne4 Qa4 Bb2 Qa2 Bc1 Ndf3 Bg5 Nd2 Bf6
N3n1R1/5B1K/NP2R1r1/1b1bpp1k/8/Q4Pp1/1N1qR2N/nN1rB1R1 w - - 0 1 legal: proof: d4 c5 e4 b5 b4 d6 bxc5 b4 e5 dxe5 d5 b3 axb3 Bf5 b4 Bg4 b5 Bc8 g4 f5 g5 e6 dxe6 Qf6 gxf6 g5 h4 g4 Be2 Bh6 Bf1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 c4 h5 f7+ Kf8 g6 Kg7 f8R a5 c6 a4 c7 h4 c5 a3 c6 a2 e7 h3 Bc4 h2 Bf7 Kf6 e8N+ Ke7 g7 Ra4 Qb3 Rf4 Nf3 Na6 Bd2 Rc4 Rg1 h1B Qa3+ Rb4 Nh2 Nh6 g8R Bd7 c8N+ Kd8 Nc7+ Be8 Nd6 Ke7 Nc4 Kf6 Nb2 Be4 f3 Bd5 Kf2 Nc5 Kg3 Nb3 Kh4 g3+ Kh5 Rd4 Be1 Rd1 Na6 Rh7 c7 Rg7 c8N Rg6 Rg2 Ng4 Nb6 Bec6 Na8 Bd7 b6 Bb5 Rh8 Kg7 Re2 Nf6+ Kh4 Ne8 Kh5 Kf6 Rh6 Kg7 Nd2 Kf6 Rc1 a1Q Nb1 Qa2 Rg8 Na1 Bd2 Rh1 Rg1 Qb3 Be1 Qc2 Rh7 Qd2 Rhg7 Rg5+ Kh6 Rg6+ Kh7 Kg5 Qc5 Kh4 Qa3 Nc7 Re8 Kh5 Re6 Ne8 Rg8 Bbc6 Rgg2 Rf1 Rg1 Bb5 Bf2 Rc1 Be1 Rd1
K4N2/Pb2Rp1n/3pR1N1/B5NN/1n4b1/p1b2rrN/2P1BQ2/5QNk w - - 0 1 legal: proof: g4 h5 gxh5 b5 d4 a5 h4 c5 b4 cxd4 a4 e5 axb5 g5 hxg5 a4 f4 Qb6 fxe5 Qa5 bxa5 Bb7 Qd3 Ba6 Qd1 Bc8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 e4+ Kg3 b6 d6 h6 d3 g6 a3 h7 d2 b7 Na6 Kc6 Bg7 b8N Ra7 e6 Re7 e5 Ra7 e7 Ra8 e8N Bg4 Kb7 Nc7 a6 Nb5 e6 Bc3 a7 Bh5 g7 Bb2 e7 Bg6 Nf6 Bf5 e8N Nc7 Nh3 Be5 Nc3 Bd3 Ne2+ Kf3 Nh5 Bf4 Nd7 Na6 Neg1+ Ke4 Nef6+ Ke3 Ne4 Re8 Be2 Be5 Nf8 Nb4 Qf1 Nf6 g8Q Bc3 Qgg2 Rg8 h8N Rg3 Nhg6 Nh7 Neg5 Rf3 Bb2 d1B Rh2 Re5 Ka8 Ba6 Qg3 Rd5 Rg2 Rd3 Qgf2+ Kd2 Rg4 Rg3 Re4 Rdf3 Re7 Bc8 Bc4+ Be2 Re1 Bg4 Qc5 Bd3 R1e6 Be4+ Kb8 Bc6 Be2 Bb7 Qf5 Be5 Bd4 Bf6 Bb6 Bc3 Qg2 Ke1 Ba5 Bc8 Qh1 Ba6 Ka8 Bc8 N3f4 Kf2 Qh4 Ba6 Nfh3+ Kg2 Qf4 Kh1 Qf6 Rg2 Qf2 Rgg3 Qf1 Bc8 Qd4 Ba6 Qdf2 Bb7+
5NrR/4rPR1/1R4P1/Q3B1n1/2nbn2b/5q2/K1rRq1b1/NRBB2kB w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 Kf7 Kd2 h5 Kc2 c5 Kb3 e5 g4 e4 f4 h4 b6 h3 b7 e3 g6+ Kf6 d6 e2 d5 e1B d7 h2 g5+ Kg7 d6 Ra4 Qd2 Qb6 d8R Na6 b8R Nc7 d7 Bh4 Nh3 Ne6 Bg2 Nf6 Na3 c4+ Ka2 c3 Rb1 c2 Rg1 Qe3 Bh1 Ra7 Rb6 Ne4 Re8 Qf3 d8R Bb7 Rd5 Qe2 f6+ Kg8 g7 Kh7 g8B+ Kg6 f5+ Kh5 f7 Bg7 f8B Bd4 Bh7 Rg8 f6 Bc6 f7 Re7 Qc3 Bb7 Bg7 b3+ Ka1 b2+ Ka2 Bc6 Be5 Ba8 Qa5 Bc6 Bcf4 c1R Nc2 Ba8 Na1 Rc2 Bc1 Bb7 Rd1 Kg4 Nf4 Kg3 Ng6+ Kf2 Rd2 Kg1 Nf8 Ba8 Bf5 Bc6 g6 N6g5 Bg4 Ba8 Rdd8 Bc6 Bhf3 h1Q Rdb8 Qh3 Bh1 Qhd3 Be6 Qdf3 Bb3 Bd7 Ra8 Bh3 Ba4 Bg2 Rab8 Rc5 Bd1 Rc2 Ne6 Rg7 Rh8 Bf1 Rbg8 Bg2 Nf8 Re6 Rh7 Re7 Rgh8 Rg8 Rg7 Qf5 Nb3 Qff3 Ra1 b1N+ Bb2 Na3 Rb1 Nc4 Na1 Rc3 Bc1 Rc2+
1qN1KQnN/1r1r1R1Q/q4nb1/2r4b/B6N/nNNP1Pk1/1N5R/r2B4 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 g4 exf5 g3 h4 Bh6 b3 Ba6 f3 Bg5 hxg5 Nh6 g6 Kd7 Ba3 Bb7 Ke2 Ke8 Bc5 Ng8 Bf2 gxf2 g4 Ba6 g5 Bc8 Ke3 Kd7 Kf4 Kd6 b6 h5 f6 c5 b7 a5 f7 a4 f8N c4 g7 e6 d3 c3 b4 a3 g6 a2 b5 c2 b6 c1N Nc3 h4 Be2 f1R Rh2 h3 Na4 Rh5 Nb2 Na6 b8N Nc5 b7 Nd7 Nc6 Rb8 Na5 Ndf6 Nb3 Re5 Rb1 a1Q Qe1 Na2 Qh4 Qb6 Qh7 Nb4 Bd1 Qaa6 Ne2 Nc2 Nc3 Na3 Ra1 Bd7 Rb1 Rd8 b8Q+ Qc7 Qc8 Qb8 Rc1 Be8 Rcc2 Ree1 Kg5 Ke5 d6 Rd7 Rc1 Rb7 d7 Re4 d8N Rd4 Rcc2 Rdd7 Rcg2 Bf7 Rg4 Rf2 Rf4 Rc2 Rf5+ Kd6 Rf4 e5 Rf5 e4 Rf4 Ne7 g8B Ke5 g7 e3 Kh6 e2 Ng6+ Kd6 Nh4 Ke5 Kg5 e1R Kh6 Bh5 Nf7+ Ke6 Nh8+ Ke5 Be6 Neg8+ Kg5 Rc1 Qf8 Ra1 Bg4 Re4 Be6 Rc4 Bd5 Bg6 Bc6 Rc5 Ba4 Bh5 Rg2 h2 Rf2 h1B Rh2 Ne7 g8N Bg2 Kh6 Bh3 Kg7 Nc8+ Ne7 Bf5 Bb5 Bfg6 Ba4 Nd5 Rf7 Nf6 Rh3 Kf4 Rh2 Nb6 Nc8 Kg3 Qfg8 Nbd5 Kf8 Ne7 Qgg7 Ne4 Ke8 Ng8 Qf8 Nef6#
2q1b2R/5Pkb/1N3qB1/1Nn1N3/b1Q1r3/2K2N1N/BR1n2PB/1r2qB1q w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 f4 f5 exf5 b5 axb5 Nf6 fxg5 Ba6 h4 Bh6 g6 Bg5 hxg5 Ng8 Rh4 Bb7 Rh1 Bc8 Kd2 Kf8 c4 e5 b4 h5 f6 a5 b6 d5 b7 h4 c5 h3 c6 a4 b5 h2 b6 e4 c7 a3 Ra2 d3 Qa4 e3+ Kc3 e2 Nd2 e1Q Rb2 a2 Nh3 a1Q Qc4 Nd7 b8N Rh4 b7 Re4 Na6 Nc5 b8N Bd7 c8N Be8 Nb6 Qc8 Nc6 Rb8 Nc7 Qaa6 Ne5 d4+ Kb4 Rb7 Nb5 Rb8 f7 Nf6 g7+ Ke7 g8B Kf8 g6 Kg7 Bh7 Qa1 Qc3 Rb7 Ndf3 d2 Qc2 d3+ Qc4 d1B+ Bd2 Ba4 Kc3 Qf2 Bg5 d2 Bf4 d1B Bg3 Bdc2 Bf4 Qd1 Bg3 Kh6 g7 Qa1 g8B Kg7 Bg6 Qae1+ Nd2 Qf4 B8h7 Bd3 Bf5 Rb8 Bhg6 Qff2 Be6 Qf4 Rg1 h1Q Bh2 Ra8 Rb1 Re2 Bh5 Qb7 Qa2 Bb3 Nf2 Qc8 Bg3 Qh2 Rb2 Qg5 Rh1 Nfe4+ Kd4 Qf4 Ndf3 Nd2+ Kc3 Qf6 Qa4 Bbc2 Bb3 Ra5 Qc4 Ra1 Ba2 Ba4 Bf4 Qg1 Rh3 Qh1 Bh2 Rd1 Rh4 Rb1 Nh3 Bh7 Bg6 Re4 Rh6 Bg8 Rh8 Bh7
2brK3/2N2RbP/2qNnQBk/1b1bB1R1/7B/n2B3R/5nP1/R1r2nR1 w - - 0 1 legal: proof: h4 g5 hxg5 d5 f4 b5 a4 e5 axb5 exf4 c4 h6 gxh6 Qf6 cxd5 Qd8 Kf2 f5 Kf3 Kf7 d4 Kg6 b4 c5 e4 a5 d6 a4 d5 a3 e5 a2 h7 c4 d7 c3 b6 c2 b5 Nc6 e6 Nh6 d6 Ra5 b7 Qf6 b8R Nd8 b6 Rc5 e7 Qh4 e8B+ Kg7 b7 Rc4 Qd4+ Qf6 Bb2 c1N Bd3 Rc5 Rh3 Nb3 Na3 Rc2 Bg6 Rc1 Nb5 Ng4 Ne2 Nf2 Nec3 Ne6 d8R Rg8 d7 Nd2+ Ke2 f3+ Ke3 Rh8 Nc7 Rg8 Ne4 Rh8 Rb1 a1N Ra8 Rg8 b8R Rh8 Rg3 Kh6 Nd6 Bg7 Rb7 Re8 Rb3 Re7 Rf8 Rf7 d8B Rd7 Qb6 Qc3 Rb5 Qc6 Bc3 Nc5 Kf4 Nc2 Bdf6 Ne6+ Ke5 f4 Raa1 Na3 Rf7 Nf1 Kf5 Ne4 Re5 f2 Bh4 f3 Bd4 Nfd2 Rc5 f1B Be5 f2 Rh3 Be2 Rcb5 f1B Qd4 Nf2 Qc3 Bf8 Kf6 Bf3 Qd4 Bd5 Qb2 Rc5 Rc1 Be2 Rg1 Rc1 Qc3 Nf1 Rc5 Rd8 Rb5 Bg7+ Ke7 Rd7+ Ke8 Bd1 Qd4 Ba4 Rc5 Bb5 Qf4+ Ng5 Qf6 Ne6 Bd4 Ba2 Rg5 Bd5 Be5 Rd8+
Q1NK1R2/Pn1B2R1/q4Nr1/qPr1RqB1/8/q1RN1bNk/2n1q3/5n1N w - - 0 1 illegal: No possible last move
rK1Q4/1P1N2r1/2r2nB1/N1R3r1/3qN1Br/2R1rB2/1Nn1NP1k/2n2B1b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 dxc5 b4 h5 b3 axb3 Qc7 b4 Qb6 b5 Qd8 g4 Nc6 h6 Bg7 hxg7 Nh6 g8B Nb4 Bf4 Na6 Bg3 Nb8 Bh4 gxh4 g5 Ng4 g6 Nf6 g7 Qc7 Nc3 Qb6 Nb1 Qd8 Kd2 d5 Kc3 Kd7 Kd4 h5 Ke5 a5 b4 h3 c4 h4 b6 a4 b7 a3 b5 d4 b6 d3 Bf7 d2 g8B a2 Na3 h2 Ne2 h3 Rc1 a1N Rc3 Na6 Bg6 Rh4 Bd5 Nb4 Bf3 Nac2 Rg1 h1R Rg5 e6 b8N+ Ke7 c6 h2 c5 Bb7 c7 Na2 c8B Nc1 c6 Rg1 c7 h1R Rh5 Rg5 Nc4 Rhg1 Nb2 Bc6 b7 R1g2 Qe1 d1R Qd2 Rg1 Qd4 Rd2 Qb6 Rd6 Bd7 Be4 Qa5 Rc6 c8N+ Kf8 Nd6 Kg7 Bc8 Qd7 Qd8 R1g3 Bg4 Bh1 Ne4 Qd3 Bf3 Qc4 Rh8 Qb4 Rg8+ Kh6 Rg7 Qb6 Rc7 Qa7 Bf7 Rg7 Bg6 Rg5 Bd7 Rc4 Kd6 e5 Rc6 Qd4+ Kc7 Rc5 Ra3 Rc4 Rc5 Rc3 Nc6 Rc4 Nd2 e4 Na5 e3 Ne4 Rc3 N2g3 e2 Rb3 e1R Ne2 Ng8 f6 Re3 f7 Nf6 f8N Rd1 Bf7 Rdd3 Bc8 Rc3 Nd7 Rc4 Be6 Kg6 Rc3 Kh6 Bd5 Kg6 Bh5+ Kf5 Be8 Kg4 Bg6 Ra6 Kb8 Ra4 Bg2 Rc6 Bf3+ Kh3 Be6+ Kh2 Bh3 Ra2 Bf1 Qd5 Ne5 Ra4 Bcg4 Qd4 Nd7 Ra1 Nac4 Ra7 Na5 Ra8+
N3qN1B/1q4RQ/3Rn1Bb/N1qBK1nb/4P3/p3BNrk/2Pn1B2/6r1 w - - 0 1 legal: proof: d4 e5 a4 c5 f3 b5 axb5 cxd4 Bf4 e4 Bh6 Ne7 Bc1 Ng8 fxe4 g5 h4 d5 hxg5 d3 e3 d4 exd4 Bc5 Nd2 Be7 Nb1 Bf8 Kd2 Kd7 Ke3 Ke6 Kf4 a5 g4 h5 b4 f5 d5+ Kd7 d6 Ke6 b6 h4 g6 h3 g7 h2 d7 d2 b7 a4 b5 a3 g5 Qa5 d8B Bc5 b6 Nf6 g8N Bf2 g6 Qc3 g7 Bd7 Ne7 Be1 Nd5 Na6 b8N Nc7 b7 Rg8 Bb5 Nh7 Bh4 Qc5 Nf3 Ng5 Rg1 h1Q Nb6 Kf6 Bf2 Be8 N8d7+ Kg6 b8B Kh5 Qe2 d1Q Nf8 Qd7 Bce3 Bd2 Rd1 Ra6 Na8 Rg6 Qe1 Bc1 Rd6 Qd8 Nbd2 Nce6+ Kg3 Qe7 Nb3 Qb7 Na5 Qf1 Bc6 Qfb5 Bd5 Bf7 Qf1 Qe8 Qb5 Bd2 Rg1 Bc1 Qd7 f4+ Kg2 Kg4 Qe7 Rh8 g8B Rh3 Bh7 Rg3+ Kh2 Rg7 Qd7 Bh5 Bg6 Rg8 Qh7 Bd2 Rd7 Bc1 Be5 Bd2 Bh8 Bc1 Nd4 f3 Rg7 Bd2 Rb1 Rg1 Rb6 Rg3 Rd6 Rg1 Be1 f2 Nf3 Rg3 Kh1 f1N B1f2 Rh3+ Kg2 Bc1 Bh4 Nd2 Kf2 Rh1 Ke2 Kh3 Kd3 Rg1 Bhf2 Bb2 Rc7 Bg7 Re7 Bh6 Rg7 Qca7 Kc3 Nc5 Kd4 Nce6+ Ke5 Qc5 Rf7 Rg7 Rc7 Rf7 Re7 Rf4 Rc7 Rfg4 Rg7 R4g3
3nbqr1/RK1P1Nk1/4BR2/1Q2n3/2rQ1PN1/RBR2q2/R1n3p1/1R2b2r w - - 0 1 legal: proof: a4 b5 axb5 d5 c4 f5 cxd5 g5 e3 f4 exf4 g4 f3 Bd7 Ke2 Be6 Ke1 Bc8 fxg4 h6 b3 Qd6 g5 Bg4 g6 Qf6 g7 Qg5 Bb2 Bh3 g4 Qf6 g5 Bc8 g6 Qd6 Bf6 Qd8 Bg5 hxg5 Ke2 e5 Kd3 c5 Ke4 a5 h4 a4 d4 g4 b4 g3 b6 g2 b5 c4 d6 c3 Kd5 c2 h5 c1R h6 e4 h7 e3 d7+ Ke7 b7 Kf6 b6 a3 Bc4 a2 Nh3 e2 Na3 e1N Nf2 Ra4 Rh6 Nc2 Bb3 Nc6 b8R Bd6 b7 Ra5+ Nb5 Ra6 Ng4+ Kf5 Rb1 a1Q Ra8 Be7 b8Q Qaa5 Ra7 Qf8 d8R Bd7 Rc8 Nd8 Rc3 Nc6 Rhh3 Nh6 g8B Qa4 g7 Kg6 Be6 Qa3 g8R+ Qg7 Nd6 Qa5+ Qb5 Nf7 Rga8 Nfe5 Nf7 Rg8 h8R Qf8 R8h6+ Kg7 Rf6 Qa3 Rhd3 Ra4 Rd2 Na1 Ra2 Rc4 Qd3 Bb4 Qd1 Qb2 R7a3 Be8 R8a7 Ba5 Qd3 Qf2 Qd2 Ne7+ Kd6 Qe3 d5 Qf3 Qd3 Nc2 Qd4 Rb4 Kc5 Rh1 d6 Ra4 d7 N7c6+ Qd6 Bb4+ Kb6 Ba5+ Kb7 Rc4 Qd4 Bb4 Re3 Be1 Rc3 Nd8+
B1NR2B1/bP1n2BR/3P3n/rK6/2n2k2/qQpR1N2/1bRqB3/1r2B2q w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 b4 e5 d6 h5 d7 a5 b6 c5 b7 h4 d5 f3 d6 f2 f6 a4 b5 h3 b6 a3 f7 a2 g6 h2 g7 Qf6 d8R Qf4 g5 Nd7 b8R Ndf6 g6 Ra7 Nf3 Nd7 Be2 f1N Bd2 Nh6 g8B Ra5 Be1 Bg7 f8B Qd2 Bd5+ Kf4 Rbc8 e4 Nc3 e3 Nb5 Bb2 g7 Rg8 Rc1 a1Q Qb3 Qa3 Rc3 Rh8 g8B Rh7 Bd1 e2 Rd3 Rg7 Na7 Rg1 Bf2 e1B Ba8 Nf5 b7 Nh6 Bh4 Bf2 Be2 Bfd4 Be1 Bf2 Kd5 c4+ Kc6 Ne3 Bg7 Rf1 Rc7 c3 Nc8 Nc4 Rg1 h1Q Rg2 Ra6+ Kb5 Ba7 Bf8 Ndb6 Rh7 Nd7 Bg7 Ra4 Bh4 Rb1 Be1 Qc2 Bd1 Qc1 Rc2 Qd2 Be2 Ra5+
n2N4/3KrPbQ/N2QpN2/1N1bPR2/1BN1b2r/7b/Rr1Nq3/2n3Bk w - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 d5 gxf5 Na6 c4 Nb8 cxd5 Bd7 Ra5 Be6 Ra1 Bc8 hxg5 a6 b4 Qd6 b6 Nc6 b7 Kd7 b5 Bg7 b6 Bf8 Bg2 Nb8 Be4 Ke8 Bd3 Qd8 Bb5+ axb5 d4 Kd7 Kd2 Kd6 Kd3 h5 Ke4 c5 f4 h4 g6 b4 f6 c4 f7 c3 f5 b3 g7 h3 f6 h2 Nf3 e6 Qc2 b2 Rf1 h1B Nd2 b1B Ra2 Rh3 Nc4+ Kd7 Ke5 Na6 b8Q Nb4 e4 Rh8 b7 Ne7 g8N Rh4 d6 Kc6 d7 Bg2 Be3 Ned5 Nfd2 Nc7 Rf5 Bg7 f8B Bh3 Bg1 Qe8 Qd3 c2 Be7 c1R d8N+ Kb5 d5 Rc2 Kd6 Rb2 e5 Qh5 f7 Qe2 Qc2 Nd3 Nc6 Nc1 Nd4+ Kb4 Qe4 Kc3 Nf6 Bc2 Qh1 Be4 Nb5+ Kd3 Qh2 Bd7 Qd8 Bc8 b8N Bb7 Na6 Bc6 Qf8 Re8 Qh1 Bb7 Kd7 Na8 d6 Bbd5 Qf3+ Kc2 Qh5 Kd1 Qh7 Ke1 Bd8 Bhg2 Ba5 Bf1 Bb4 Bh3 Nf3+ Kf1 Nfd2+ Kg2 Qe7 Nb6+ Kc7 Na4 d7 Kh1 d8N Nb6 Qd6 Na8+ Kd7 Re7+
rB1B2N1/Bq1N4/k3r3/3qN1b1/2K1p1PN/1nnnP2n/BB1Q3b/5R1R w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 b4 a5 g4 axb4 h4 Bf5 h5 Bg6 hxg6 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 Kd2 Kc8 Kd3 Kb7 b6 h5 g7 e5 g6 c5 d6 f5 d5 f4 d7 f3 d6 f2 Qa4 c4+ Ke4 b3 Kd5 b2 Rh4 c3 Na3 b1N Qe4 c2 Qb4 Nc3+ Kc4 Ka6 b7 Nf6 g8N Nh7 g7 Nc6 b8B Ng5 Bb2 c1B Nf3 Rh6 Rh1 h4 Nf6 h3 g8N h2 Nh4 Nh3 Rb1 Qa5 d8B Bg5 d7 Bd6 e3 e4 Bd3 f1Q Bb6 Nd4 d8B Nb3 Nd7 Re6 B6a7 Qf7 Rbf1 Qb6 Bb1 Qb7 Ba2 Qf5 Re1 Bg3 Rhf1 h1N Rb1 Bh2 Qd6+ Qb6 Qd2 N1f2 Rh1 Qb7 Rbf1 Nf4 Nb5 N2d3 Nd4 Nh3 Nc6 Qa5 Nce5 Qad5+
N1qNK1R1/4RQB1/R2q2R1/1p1B2nr/b2N2PP/1n6/2q1qNb1/kr5N w - - 0 1 legal: proof: c4 a5 b4 h5 e4 d5 cxd5 f5 exf5 axb4 Qg4 g5 Qd1 Bg7 g3 Be5 g4 Bg3 gxh5 g4 Bg2 Bf4 Bf1 g3 Nh3 g2 Ng1 Bg3 fxg3 Qd6 Bd3 Qd7 Bf1 Qd8 Kf2 Kf7 Ke3 Kf6 Kd4 b5 Kc5 Ke5 h4 b3 a4 e6 d4+ Ke4 d6 b2 d5 c6 a5 e5 f6 Bg4 f7 Bd7 f8N Qc7 h6 Ra7 g4 Be6 h7 Qc8 d7 Nh6 Kd6 c5 Ke7 c4 a6 c3 d6 c2 Ne2 g1Q Nd2+ Kd3 Bg2 b1B Ng3 Kc3 Qf1 e4 Qf7 e3 Bd5 Qd1 Re1 e2 Nh1 Rc7 a7 Na6 a8N Nc5 Ra7 Nb3 Ra6 Bf5 Ba3 c1Q Ne6 Bfe4 Nd4 Qcc2 Bc1 Rc6 d8R Bg2 d7 Rf6 Ba3 Rf1 Rg8 Ba2 Bd6 Kb2 d8N Ka1 Ke8 Rg1 Bf8 Rf1 Qg7 Nf7 Ne4 Ng5 Nef2 Rg1 Qd7 Rf1 Bg7 Rg1 Rf1 e1Q+ Qe7 Qe5 Re1 Qd6 Qf7 Rf1 Re7 Qde2 Bf8 Rb1 Rg6 Rg8 h8R Rg7 Rf6 Rh7 Bg7 Rh5 Rfe6 Na5 Rf6 Bb3 Rg6 Ba4 Rg8 Nb3
2B1b2k/2R1n3/1B1PrN2/3np1nK/5R1Q/bB5q/Nn1BR1PR/rR4q1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Kf3 Kg7 Kg4 c5 d4 e5 f4 h6 g6 b3 b6 b2 b7 c4 d6 c3 d7 c2 d5 Na6 b8R Bc5 d6 Ba7 f6+ Kf8 f7 Kg7 f8R Bb6 f5 Ba7 Rb7 Qe7 d8B Nb4 Qe1 Bc5 Nh3 Nd5 Ba6 Qd7 Ng5 Nge7 Ne4 Ba3 Bd2 c1N Nbc3 b1N Bb6 Nd3 Na2 Nbc3 Nf6 Nb2 Rh2 Ne4 Rb1 Ng5 Rc7 h5+ Kh4 Bb7 Qe4 Bc6 Bc8 Qe6 Qe1 Be8 Qe4 Kh6 g7 Ra6 g8B Kg7 Qd4 Rh6 Rf7+ Kh8 Rc2 Nc6 Rc7 Nce7 Qf4 Qd7 Qf2 Nf4 Bb3 Nfd5 Ng8 Re6 f6 Ra8 f7 Ra5 f8R Ra7 Kg3 h4+ Kg4 h3 Rf7 Ra4+ Kh5 Ra8 Nf6 Ra6 Rhh1 h2 Qh4 Ra7 Bf4 Ra8 Re2 Ra5 Bd2 Ra7 Rhd1 h1Q Rdc1 Qh3 Rh1 Qc6 Rh2 Qc1 Rc4 Qg1 Rf4 Bc5 Nc3 Ra1 Na2 Ng6 Re7 Ba3 Rc7 Nge7+
1q1R1R1n/k2r1B2/n2B3q/R2QB1P1/2q4B/3PpKN1/N2b2rB/r2n2R1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kd7 b4 Kc8 d3 Kb7 f6 a5 f7 e5 g6 h5 g7 c5 g5 c4 b6 a4 d6 h4 b5 h3 d7 a3 Bd2 a2 Nc3 h2 Kf2 e4 Be1 f3 Nge2 Na6 Rg1 h1Q Bh3 Nh6 g8R Rh7 Qb3 Qb8 d8R Bb4 f8B Rd7 Ng3 Nf7 Bd6 Nh8 Be6 Qh6 Bf7 Ra7 Ke3 f2 Rgf8 f1N+ Kf2 Ka8 Ke2 Rac7 b7+ Ka7 Kf2 Ne3 Ke2 Nc5 Bf2 Nd1 b6+ Ka6 Be5 e3 Kf3 Ba5 Nf5 Bb4 Bh4 Ba5 Ng3 Bb4 Rb1 a1R Na2 c3 Qd5 c2 Bd6 Ba5 Rb5 c1Q Be5 Bd2 Bd6 Qa7 b8B Qc4 b7 Rc6 Bbc7 Qb8 Be5 Rb6 Bcd6 Ka7 Ra5+ Na6 Rf1 Rb2 Rg1 Qa8 b8B+ Kb6 Bbc7+ Ka7 Nf5 Rc2 Bh2 Qb8 Ng3 Bc1 Be5 Rg2 Bcd6 Bd2
R1N2n2/BkB1N3/3b1KN1/Q5NP/2nB1P2/np1rq2b/4N2b/1BR2bq1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ra7 exf5 Rb7 a4 axb4 Ra2 b3 Ra3 b4 Ra1 Rb5 axb5 Bb7 Ke2 Ba6 Ke1 Bc8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 Ke5 g5 d4 g4 f4 g3 h4 c4 b6+ Kb7 d6 e6 d5 c3 f6 g2 d7 b2 h6 c2 h5 b3 h7 Nh6 f7 Bb4 f8N Nf5 d6 Ng7 Ra8 Bd2 Ne2 g1B Ng6 Bh2 Nbc3 b1B Ne4 Nf5 Bb2 c1Q Ne7 Qg8 d8B Ne3 d7 Qg1 Bd4 Nc4+ Kf6 e5 Ng5 e4 Qe1 e3 Bc7 Rd8 h8N Bd3 Nhg6 Bb4 Bh3 Ba3 Qa5 Bd6 Bf5 Qd2 Nc3 Bf1 Bb1 Rg8 d8B Bch3 Nc8 e2 Be7 e1N Ne2 Qde3 Bf8 Kc6 b7 Nc2 Ba7 N2a3 Bg7 Rd8 Bh8 Na6 b8N+ Kb7 Nc6 Nc5 Nc6e7 Ne6 Bg7 Nf8 Bh8 Qg4 Bg7 Bfg2 Rc1 Bf1 Kf7 Qgg3 Bgd4 Qgg1 Kf6 Bb4 Bde5 Rd3 Bed4 Bd6
1KQ4B/q3n3/p2Prn2/1BRbqR1N/N2k1qB1/1R1PqB1R/8/3B1b1n w - - 0 1 legal: proof: f4 b5 d4 e5 h4 g5 hxg5 d5 a4 a6 axb5 Bg7 Kf2 e4 Ke1 Be5 fxe5 Ra7 c4 Rb7 Bd2 Rb6 Be3 dxc4 Bc1 Rf6 Ra5 Rf3 Ra1 Rd3 exd3 Bh3 Ra4 Bd7 Ra1 Bc8 Ke2 Ke7 Ke3 Ke6 Kf4 Kd5 b4 h5 g4 f5 b6 c5 b5 h4 e6 e3 e7 c3 e8B e2 b7 e1N g6 c2 g7 c4 b6 c3 g5 h3 g6 h2 Bh3 Nf6 g8B+ Be6 g7 Rh4+ Qg4 Nc6 b8R Ne4 b7 Qe7 Ra5+ Qc5 Rc8 Ne7 b8R Nf2 Bb5 Rh6 Bb2 Qc6 Ne2 Rg6 Ng3 Nf3 Nh5 Ne5 Rc7 Qd7 Rc5+ Kd6 Bg2 Bd5 Bf3 Re6 Qh3 Neg4 Bd1 Re3 Be6 c1Q g8B c2 Nc3 Nf6 Na4 Qa1 Qg4 c1Q Bh7 Qc4 Qg8 Re5 Qc8 Qb4 Bhg8 Qe1 Bf3 Qe3+ Kg3 f4+ Kg2 Qc7 Rc2 Bb7 Bbd7 Nf5 d5 Ne7 Beg4 Ne8 Bf7 Re4 Bh8 Qb2 Bc6 Qd7 Bd1 f3+ Kg3 Ba8 Rb3 Nf6 Bb7 Ke5 d6+ Kd4 Bc4 Re6 Rf5 Qbc1 Bb5 Qe4 Rcc5 Qce3 Rg1 h1B Rf1 Bg2 Rh1 Nd5 Rh3 Qe5+ Nf4 Nh1+ Kh4 f2 Kg5 f1Q Kg6 Nc7 Nh5 Qff4 Bbf3 Qe8+ Kg7 Qd7+ Kf8 Ncd5 Qe8 Qc7 Qc8 Ne7 Kf7 Bf1 Kf8 Ne4 Ke8 Qb7 Kd8 Nf6 Be8 Qb5 Kc7 Bd5 Bc6 Qc4 Kb8 Qb5+ Bb7 Qe8 Bc6 Qd7 Bb5 Qa7+
2R3r1/4nr1P/5Qn1/5Rnp/qPB3r1/2NK1Nnk/B1BBq1R1/2R1R2b w - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 h4 d5 cxd5 g5 hxg5 h5 a4 Be6 axb5 Rh7 g6 Rh8 g5 Bh6 gxh6 Bc8 d4 Ke7 Kd2 Kf6 e4 Kg5 b4 c5 g7 a5 d6 f5 d5 a4 d7 a3 h7 f3 b6 Kg4 d6 f4 e5 a2 b7 c4 e6 c3+ Kd3 c2 e7 Ra7 e8B Ne7 g8B Nbc6 b8R Ng6 Rh2 Bb7 Rc8 Nce7 Bb3 Rg8 Qe1 f2 Qe5 f3 Bd2 c1R Qf6 Rc4 Bf7 Qe8 d8R Bd5 Be2 f1N d7 Ng3 Bc2 Ne4 Nc3 Ng5 Rc1 a1Q Rg2+ Kh4 Re1 f2 Nf3+ Kh3 Rc6 f1N Rdc8 Qa5 d8R Qa4 Rc5 Bc6 Rdd5 Ng3 Rf5 Rg4 Ba2 Bd5 Ke3 Qeb5 Bec4 Qba6 Kd3 Qe6 Bc2b3 Qe2+ Kc2 Qd1+ Kd3 Qa1 Rf2 Rh4 Ne2 Rh8 Nh2 Rg4 Ba6 Bh1 Nf3 Qe5 Rg2 Nc6 Rcc1 Rf7 Bac4 Nce7 Bc2 Rg8 Nc3 Qe2+
k1N1B2N/1N3PR1/q2Q1K1b/1P2n3/N3bN1B/3q2Rq/2p1bn2/q1B1q2B w - - 0 1 legal: proof: g4 h5 a4 d5 e4 dxe4 h4 f5 gxf5 b5 axb5 a5 f4 g5 c4 g4 f6 Ra6 f5 Rd6 Nc3 Rd4 Nb1 Rd5 cxd5 Rh7 Bc4 Rg7 Bf1 Rg5 hxg5 Qd6 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 Kb7 d4 c4 b4 g3 g6 e6 d6 c3 f7 a4 g7 e3 b6 c2 b5 g2 d5 e2 f6 e1Q+ Ne2 g1Q d7 h4 d6 h3 Nc3 a3 Na4 Qh4 Nf4 Qh2 Rg1 a2 Rg3 Qg4 Bg2+ Qf3 Bh1 Nh6 g8B Qc6 Qd5 Bg7 f8N Ka8 Bf7 Qb7 Rb1 a1Q+ Qd4 Qhg2 N8g6 h2 Be8 Qa6 Nh8 Bb7 Rb4 Qh3 Rb1 Bf8 f7 Be4 Rbb3 Bf3 Rg7 Be4 Rbg3 Bf3 Nd5 Be2 Ne7+ Nc6+ Kf6 e5 b7+ Kb8 Qc5 e4+ Qe5 Ka7 b8B+ Ka8 Ba7 e3 Bc5 Qda5 d8N Q5c3 Nb7 Qd3 Qd4 Ne5 Nc8 Bf3 Qb4 e2 Bf2 e1Q Qd2 Be2 Qd1 Qa7 d7 Qaa5 d8N Qa6+ Ne6 Nhg4+ Kg5 Qe3+ Nf4 Qd3 Bb6 Nf2 Kf6 Qdh7 Qd6 Qd3 Bhc6 h1B Bd8 Be4 Bd5 Bf5 Bh1 Be4 Be7 Qhf1 Ke6 Qg2 Bh4 Qh2 Kf6 Qh3 R7g4 Bh6 Rg8 Bd1 R8g7 Be2
2B5/bN2qkPR/2Np3K/bnn1Q3/b2N3B/2NP1qn1/nq1R1N2/4N1Q1 w - - 0 1 legal: proof: f4 c5 g4 e5 b4 exf4 a3 f5 bxc5 b5 a4 a6 axb5 f3 Bg2 f4 Bh3 Kf7 Bf1 Ke8 h3 h5 Ba3 g5 Bc1 a5 Bg2 Rh7 Bf1 Rf7 h4 Rf5 gxf5 g4 Ra2 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 Kf2 a4 c4 a3 e4 h4 f6 a2 b6 h3 g6 h2 d3 Be7 b7 Nh6 c6 Nf7 e5 Na6 b8N Nc5 e6 Na6 c7 Nd6 f7+ Kf8 c5 Nf5 c6 Nc5 Bh3 Nh6 Nc3 Bg5 g7+ Ke7 f8N Nf7 Ba3 Kf6 e7 Nd6 e8Q Nb5 Qe5+ Kf7 Ne6 Qe7 Nd4 Bf6 Rb1 a1N Rb2 Nab3 Rd2 Nc1 Qf1 Bb7 c8N Na2 c7 Be4 Nbc6 g3+ Ke1 g2 Kf2 Bd5 Bc1 Bb3 Nd6+ Kg8 c8N Ba4 Nb7 Kf7 Ne4 d6 Nb6 Bg5 Bc8 Bh6 Nd5 Bg5 Ke1 f2+ Ke2 Bf6 Bb2 f3+ Ke3 Bh4 Qa1 f1Q Kf4 f2 Ngf3 g1B Ndc3 Qb1 Ne1 f1N Nf2 Ng3 Bc1 Qb2 Kg4 Nf5 Kh5 Ng3+ Kh6 Qf8 Rd1 Bd8 Bg5 Ba5 Bh4 Qe7 Qc1 Qe2 Qcg5 Qb2 Rd2 Bc2 Ng4 Be3 Nf2 Ba4 Rg1 h1Q Rg2 Nh5 Rh2 Ng3 Nde2 Nb4 Kh7 Nh5 Qg1 Na2 Bg5 Ne4 Rh4 Bc5 Ned4 Nhg3 Rh5 Ba7 Bh4 Qf3 Rh6 Ke8 Kg6 Nc5 Rh7 Qf5+ Kh6 Kf7 Qg2 Qe4 Qg1 Qf3
2b1N1k1/5Nr1/P1R3Nr/1b2q3/3Q2Pb/b2Bp2K/NBr3N1/r1Q1RN1b w - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Nc6 g4 Ra7 f4 Nb8 b4 axb4 f6 Kd7 f7 Ra8 f5 g5 h3 Nh6 f6 Nf5 Bc4 Nc6 Bf1 Ne5 gxf5 g4 Be2 g3 Bf1 Ng4 hxg4 Bg7 Bg2 Bh6 Bf1 Bf8 a4 e5 d4 c5 d6 b5 a5 h5 a6 b3 d5 c4 Bd3 b2 Kf1 h4 Kg2 e4 Kh3 g2 Nc3 b1B Nf3 g1B Bb2 e3 Qc1 b4 Na2 c3 Nh2 b3 Nf1 Be7 f8N+ Ke8 d7+ Kf7 d6 c2 Nh7 Qb6 d8N+ Kg8 d7 Ba3 Nf7 Qb5 d8Q+ Qe8 Qd4 Qe5 Rh2 Ra7 Re2 Bf2 Re1 Rd7 Nd8 Bg3 f7+ Kg7 f8N Kg8 f6 Rg7 Nfe6 Bf2 Qd2 c1R Nf7 Rc2 Qc1 Bg3 Nf4 Bf2 Nhg5 Rh6 Nd6 Bg3 Ne8 Bf2 Bc3 b2 Ng2 Bg3 Nf7 Bf2 Nb4 Ba2 Rb1 Bc4 Na2 Bb5 Ra1 b1R Bb2 Rd2 Qcc3 Rbd1 Rc1 Re2 Rc2 Ra1 Qd2 Bg3 Qc1 Rf2 Rc6 Rc2 Nfd6 Bf2 f7+ Kh8 f8N Kg8 Ng6 Bg3 N6f4 Bf2 Kh2 h3 Nf7 Bh4 Bc3 Bd8 Kg3 h2 Bb2 Bh4+ Kh3 h1B Ng6 Qf4 Qd5 Qb8 Qd4 Qe5
2B2BBQ/b1k3q1/3r1pq1/q1PB2P1/1R1r1B2/q5bb/1B1R3N/KQ2b1N1 w - - 0 1 illegal: No possible last move, all moves rejected
k7/3r2K1/5Pb1/4q1QR/N2nN2R/Np1n1Qb1/pNbP2B1/r1rN1B1N w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 hxg5 Nc6 c4 Nb8 cxd5 Bh6 Bc4 Bg7 Bf1 Bf8 a4 b5 b4 c5 Ba3 Na6 axb5 Bb7 b6 Bc8 b5 Nb8 Bb4 cxb4 Ke2 Kd7 Kf3 e5 Kg4 a5 Kh5 e4 f4 b3 g4 h6 Kg6 e3 d6 h5 b7 h4 b6 Kc6 d7 h3 f6 a4 f7 h2 f5 a3 Qf3+ Kc5 Nh3 e2 Nf2 e1R Nc3 a2 Ncd1 Qe7 d8Q Na6 b8N Nf6 b7 Qc7 Nd7+ Kd6 b8N Nc5 Na6 Nh5 Nb6+ Qd7 Nc7 Ra5 Nb5+ Ke5 Na3 Kd6 Na4 Nb7 Nab2 Bh6 f8N Ra7 Ne6 Na5 Nc5 Nc6 Nca4 Nf4+ Kf6 Rh7 g6 Nd4 g5 Nd3 g7 Rc7 g8B Rc1 g6 Bf4 g7 Bg3 Bd5 Bb7 Qe7+ Kc7 g8N Kb8 Kg6 Qc6+ Nf6 Qc5 N6e4 Ka8 Qg5 Rd7 Bc6 Qe5 f6 Rd5 Kg7 Rd6 Rg1 h1B Rg2 Rd8 Rh2 Rd5 Rh4 Rd7+ Kh8 Bg2 Nh1 Bh3 Bd5 Be6 Rb1 Bf7 Kg7 Bc6 Be6 Bd5 Beh3 Bde6 Bhg2 Bf5 Ne3 Rc8 Rd1 Rc1 Rh5 Ra1 Rc1 Bh7 Rc4 Rec1 Ned1 Bfg6+ Kh6 Nf4 Nef2+ Be4 Qc3 Bg6 Qf3 Nc6 Rb4 Bc2 Rd4 Nd5 Rdh4 Ndb4 Ne4 Nd4 Nb5 Rd8 Na3 Nd3 Kg7 Rd7+
1Nn1NQ2/3qN1BR/2N1b3/2Bqb3/P1PQ4/Kpn1pr2/3NR2N/r1n3k1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 bxa5 Na6 e4 Nb8 exf5 Qc7 Qd5 Qb6 Qd1 Qd8 f4 g5 g4 h5 Be2 Nf6 fxg5 Bg7 g6 Ng8 g5 Bf8 Bg4 hxg4 Kd2 e5 Kc3 Ke7 Kb3 d5 c4 b5 a4 d4 h4 d3 g7 g3 g6 Kf6 h5 g2 h6 d2 a6 Kg5 c6 Kf4 a7 Kg3 c7 Kf2 h7 b4 f6 e4 f7 e3 Ra2 Bb7 c8Q Qg5 Ba3 Qd5 Nf3 g1N Nh2 Nf6 g8N Ne4 g7 Qf5 Ne7 Bd5 g8N Be6 Nc6 Nd7 Nge7 Bg7 f8N Nb6 Nd7 Nc3 Ndb8 Be5 Qf8 Nc8 Rb2 Rg8 h8B Nge2 Bg7 Kg2 Rc2 Nc1+ Kb2 b3 Bc5 Qe4 Ka3 Qd5 Rb2 Rh8 Ra2 Rh3 Qg4+ Rg3 Qd4 Rf3 Rc2 N1e2 Ra2 d1Q Nd2 Nc1 Nd7 Rb8 a8N Rb7 Ndb8 Rd7 Nc7 Rd6 Ne8 Rd8 Nhf1 Qd7 Rh7 Kg1 Nb1 Qd3 Re2 Qe4 Nh2 Qed5 Nf6 Bg4 Nd2 Be6 Qg8 Rf8 Ne8 Rf1 Qh8 R8f3 Qg8 N1a2 Qf7 Ra1 Qf8 Nc1+
n6k/NR1q4/pRpBN1q1/BB2N1rB/3bP3/5P1b/K1QnB3/r3Nr2 w - - 0 1 legal: proof: b4 b5 d4 d5 c4 f5 cxd5 e5 dxe5 g5 a4 f4 axb5 f3 h4 gxh4 Ra6 Bb7 Rf6 Bc8 Rxf3 Bg4 Rf7 Bc8 Kd2 h5 Kc2 c6 Kb2 h3 e4 h4 g4 a6 e6 h2 d6 h3 g5 Bb7 b6 Qc7 b5 Qe7 d7+ Kd8 g6 Rh7 g7 Ra7 Bd2 Rh8 Qc2 Qc5 Nc3 Ne7 g8B Bg7 Nf3 Bd4 Ne1 Nd5 f3 Nc7 Be2 Qh5 Ka2 Bc8 b7 Qg6 b6 Na8 Nb5 Rh4 Rf1 h1Q Ba5 h2 Rg7 Rh3 Bf7 Ke7 d8N Kf6 e7 Rh5 e8B Nd7 b8B Ne5 b7 Rg5 Ne6 Nc4 Bd6 Nd2 b8N Rb7 Na7 Rb1 Bg8 Qg2 Rb7 h1R Rf2 Qh7 Bh5 Qd7 Bb5 Rc1 Re2 Qg1 Re3 Qg4 Rb3 Rf1 Be2 Qf5 R3b6 Rb1 Nc7 Kg7 Bgc4 Qff7 Ne6+ Kh8 Bcd3 Qg6 Bb5 Qdf7 Nd7 Qfh7 Ne5 Bd7 Ng7 Bh3 Ne6 Qd7 Nc4 Rc1 Ne5 Ra1#
R1B1Bk2/1P2q1N1/1rq1rbpN/1B6/b1bn4/4n1NB/2PpKRN1/2BQ4 w - - 0 1 illegal: No possible last move
qr1q1nN1/nk6/2Rp1QP1/1B2RN2/N3K3/p3P1n1/3b3r/BNR1rRN1 w - - 0 1 legal: proof: d4 b5 g4 e5 f4 g5 fxe5 f5 a4 c5 axb5 cxd4 h3 Bb7 gxf5 g4 Ra2 g3 Ra4 Bf3 Ra1 Bg4 hxg4 Qe7 Ra6 Qh4 Ra1 Qd8 Kd2 a5 Kd3 h5 c4 g2 b4 h4 e6 d6 c5 h3 c6 h2 e7 a4 f6 a3 c7 Kd7 e8R Kc8 b6 Nd7 b5 Kb7 c8N Nb8 g5 Qe7 e3 Ra5 f7 Ra8 g6 Qd8 Ne7 Nd7 Qf3+ Kb8 b7 Ra6 Qf6 Ka7 b8R Rh3 Rc8 Rb6 Nf5 Kb7 Rc6 Ne7 Bb2 Bg7 f8N Nc8 Ne6 Na7 Ke4 d3 Be2 d2 Nc5+ Kb8 Bf1 d1Q Na4 Kb7 Re5 Nf8 Bc3 Qb3 Bd4 Qg8 Bd3 Ra6 b6 Ra5 Bb2 Rb5 Be2 Rb3 Bb5 Qh8 Nbc3 Rh6 Rf1 Rh5 Ba1 Rb2 Nf3 g1R Nb1 Rh7 Rfc1 Re1 Rf1 h1N Ng1 Qa8 Ne7 Rhh2 Ng8 Kb8 b7 Qh4+ Qf4 Qd8 Qf6 Ng3+ Kd3 Nc8 Kd4 Ka7 b8N Kb7 Kd5 Na7 Kd4 Nh5 Ke4 Rb3 R6c2 Rb2 Nc6 Rb4+ Nd4 Ng3+ Kf4 Rb2 Rc6 Rhd2 Qh4 Qd7 Rd5 Kb8 Bc4 Qd8 Nf5 Bc3 Qf6 Rh2 Re5 Rb7 Bb5 Bd2 R6c4 Rc7 R4c3 Rc8 Rc6 Kb7 Kf3 Rb8 Kf4 Nh5+ Ke4 Ng3+
2Nrr1B1/PNNP1q2/1B3k2/4p3/R1N5/1Rn1RrQR/rn1pR1rb/1K6 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 d4 Bd7 dxc5 d4 Be2 Bc6 Bf1 Bd5 cxd5 Ra3 Qb3 Ra6 Qd1 Ra8 Kd2 Kf7 Kc2 g5 a4 e5 f4 b5 h4 g4 f6 g3 f5 g2 h6 Qe8 h7 Nd7 c6 Nc5 c7 Qc8 d6 Qb7 c8N Nd7 a5 Qf3 h5 Be7 h6 Qf2+ Nd2 b3+ Kb1 b2 a6 b4 a7 d3 Ngf3 g1R Nh4 Rg3 Nc4 Qf4 Qb3 Nb6 d7 Qd4 Be3 d2 Rh2 Qc5 Re2 Rg5 Ra4 Qd4 Bg2 Qd6 Bd5+ Qe6 Bc5 Rg2 Qg3 Bf8 Re3 Ne7 Bd4 Rg8 h8R Bg7 h7 Re8 Rg8 Rb8 h8R Bh6 Rg4 Bg5 Rge4 Bf4 Rb3 Ra8 Re2 Rd8 Ra2 Na4 Bb6 Be3 Raa3 Bg1 Rbe3 Bh2 Rab3 Ng6 Rh5 Nf4 Rh8 Nd3 Rh6 Kf8 f7 Qg6 Rh8+ Kg7 f8N Kf6 Bg8 Qf7 Ne6 Rb8 Nc7 Re8 Kc2 b1R Rh7 Ra1 Rh5 Ra2+ Kb1 Rf2 Rh7 Rf4 Rh8 Rg4 Rh5 Ndb2 Rh6+ Kg5 f6 Rd8 Nf5 Nc3+ Kc2 Re8 Nfd6 Ra8 Nb7 Kf5 Qe1 Rg2 Rhh3 Kg5 Ne7 Rad8 Nc8 Qd5 f7 Kf6 f8R+ Qf7 Qf2+ Kg6 Nca5 Qg7 Rf4 Nba4+ Kd3 Qf7 Rc4 Kg7 Qg3+ Kf6 Rd4 Ra1 Kc2 Rf1 Rb1 b3+ Kd3 b2 Kc2 Rf4 Rb4 Rf3 Ra1 b1R Nc4 Rd1 Rb3 Nb2 Ra4 Ra1 Rb5 Ncd1 Rbb3 Ra2 Kb1 Nc3+
2Qrn3/1Q3Q1N/bb1NR1pQ/2r1KB2/2bPQ2R/2Qp2r1/1BP1q3/1k3r2 w - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 gxh5 Be7 Ra6 Bd6 Ra1 Bf8 Nf3 d5 Ng1 c5 Ra4 c4 Ra1 c3 dxc3 Bg4 Kf2 Bh3 Ke1 Bc8 Nd2 d4 Nb1 d3 Nf3 Nc6 Ng1 Nd4 cxd4 Bd6 Kd2 Be7 Ke1 Bf8 Kd2 Ke7 b4 Kd6 h4 Kd5 e4+ Kc4 e5 f5 e6 a5 h6 f3 Ke3 g6 Kf4 a4 h7 a3 b6 a2 b5 f2 h5 Qh4+ Ke5 f4 e7 f3 e8Q Bb7 h6 Be4 b7 Qg4 b8Q Qc8 b6 Qd7 b7 Qc8 Qd2 Qd7 Nh3 Nf6 Bb2 Bd5 Ng5 Ra5 Qc7+ Bc5 b8Q Qg4 Bh3 f1B Nc3 f2 Nb5 Bfg2 Rae1 f1R Qbb7 a1R Qcf7 Bb6 Qee7 Qh5 Bf5 Rd8 h8Q Ne8 h7 Qg4 Re4 Qe2 Rh4 Rf3 Qhf8 Rg3 h8Q Rf1 Qhh6 Be6 Re3 Bgd5 Qe1 Bc8 Nh7 Bde6 Qe4 Ba6 Qa1 Bd5 Nd6+ Kb4 Qb7 Rc5 Qe1+ Ka4 Ba1 Ka3 Qc3+ Ka2 Bb2 Ng7 Q8e8 Kb1 Qec6 Ne8 Qcc8 Ba2+ Qed5 Ra5 Ke6 Rc5 Re5 Rc4 Qe4 Bb3 Kd5 Ba2 Re6 Rc7+ Ke5 B2c4 Bh3 Rc6 Bf5 Rc5+
q1nrQBB1/1R1pP2B/3r4/1B2R2b/1n3B1Q/nN3P2/pn3K1B/N2kr3 w - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 f5 a4 c5 axb5 cxd4 Bf4 e5 Bd2 f4 Bc1 f3 exf3 e4 Be3 Bd6 Bd2 e3 Bc1 e2 Kd2 Bf4+ Kd3 Be3 fxe3 Nc6 Kd2 Nb8 Ke1 Kf7 g4 Ke6 b4 Ke5 c4 a5 c5 h5 g6 h4 g5 d3 c6 a4 b6 d2+ Kf2 e1R e4 Kd4 b7 h3 g7 a3 g6 a2 c7 h2 e5 Ra3 e6 Rh5 b5 Rhe5 e7 Ra4 b6 Rf5 Na3 Kc3 Bb5 Rf8 Rb1 Nf6 g8B Nc6 b8B Rd4 b7 Na5 g7 Rd6 Bh7 Nd5 g8B Nb4 Qa4 Nc4 Nc2 Na3 Na1 d1N+ Kg2 Rc6 Bh6 Nb2 Kf2 Rd6 Bg7+ Kd2 Ne2 Qe8 Nd4 Qd8 Rf1 Re8 Bf8 h1N+ Kg1 Ng3 Kf2 Nf5 Rg1 Rg6 Rg5 Nd6 Re5 Re6 Ba7 Rf6 b8B Bb7 c8Q Be4 Bc5 Bg6 Ndb3+ Kc3 Bc7 Bh5 Be3 Re6 Qca8 Nc8 Bf4 Rd6 Bh2 Na6 Qh4 Nb4 Bb8 Qa5 Ba7 Rd8 Be3 Qa4 Bef4 Qa6 Qe4 Qa8 Qg6 Re3 Nc5 Kd2 Qe8 Na4 Rb2+ Kd1 Ncb3 Re1 Rc2 Bg4 Rc7 Nb2 Rb7 Bh5
1Nn2K1R/nP1R3P/2N5/1Bn2pk1/N3b3/b2nNpb1/1r2N2B/Rq1Q1R2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Rh6 f4 exf4 axb5 a4 Nc3 Ra7 Nb1 Ra5 bxa5 Rh8 Kf2 Ke7 Kf3 Kf6 Ke4 g5 h4 c5 d4 f3 a6 g4 h6 c4 h7 c3 a7 c2 a8R a3 h5 g3 b6 a2 h6 g2 b7 Qc7 d6 Bg4 Kd5 Bh5 e4 Qc8 d7 Bg7 Kd6 Bg6 d8N Nc6 d5 Qf5 Nc3 Nce7 Nc6 Bf8 Nge2 g1B Bf4 c1N Na4 Bb6 Rd8 Qg4 e5+ Kf5 e6 f6 Nb8 Nc6+ e7 Na7 Rd7 Bf2 Bh2 Kg5 Rg1 Nd3 Rh1 Bg7 e8N Be4 Nc7 f5 Ke6 Bgd4 Kf7 Ne7 d6 Bc5 Nd5 Bg3 Ne3 Ba3 Kg7 Re8 h8R Nec8 h7 Re5 Kf8 Rb5 Rf7 Rb4 d7 Rb2+ Re7 Qf4 d8N Qd6 Ndc6 Qb4 Rc1 a1N Rb1 Nb3 Ra1 Nbc5 Rd7 Nf2 Ng1 Ne7 Bb5 Nfd3 Ne2 Nec8 Rf1 Qb3 Ne7 Qc2 Nec6 Qb1
b3R1r1/7R/1b3BBN/3r3K/1nQ2B2/1pPqQp2/kB1b1PN1/Bq1bB3 w - - 0 1 legal: proof: b4 b5 e4 c5 g4 h5 gxh5 d5 d4 e5 dxe5 Nd7 a3 Nb6 a4 d4 axb5 Nd5 exd5 cxb4 Ke2 Ke7 Kf3 g5 h4 a5 h6 f5 d6+ Ke6 d7 Kd5 h7 a4 h5 a3 h6 f4 Kg4 b3 b6 a2 e6 f3 e7 d3 e8Q Kc4 b7 Rb8 Na3+ Kb4 Qe3 d2 Nc4 Qb6 Nd6 Qc7 Bb2 Ne7 Ne2 Ng6 Nf5 Ne7 d8B Qd7 Nf4 Nd5 Kh5 g4 Bdf6 g3 Qc1 d1B Ng2 Rg8 h8B Bc5 h7 Bb6 Nh6 Qb5 Rb1 a1B Bd3 Qc4 Bg6 Qd3 Bfc3+ Ka4 Ba5 Nb4 Bhf6 Rd8 h8B Rd5+ Bg5 Bf5 Bgf6 Rg8 b8B Bc8+ B8e5 Bb7 Rh4 Ba8 Re4 Rd7 Bf4 Rd6 Re8 Rd5+ Bbe5 Bb2 Bhg7 Ka3 Bh8 Na6 Be1 Ka2 Bhg7 Bc3 Bh8 Bb4 Bhg7 Rd8 Ba1 Bd2 Bfb2 Nb4 Bgf6 Qc4 c3 Qd4 Qc2 Rd5+ Qf5 Qd3 Qg5 Rd8 Qgc5 Rd6 Qc4 Rd8 Nh4 g2 Rc1 g1Q Ng2 Rf8 Re7 Rd7 Rh7 Rg8 Rc2 Bc1 Re2 Bd2 Qec5 Qf1 Re8 Qb1 Qe5 Qfd3 Qe3 Rd5+
n1KR3q/3B2RQ/NRr1R3/k1q1R3/1p1n4/4R3/BPP1rbpn/2n2N1Q w - - 0 1 legal: proof: g4 f5 a4 h5 gxh5 c5 d4 d5 dxc5 b5 e4 d4 exf5 b4 Bd2 d3 Bc1 Ba6 Qf3 Bb5 axb5 d2+ Ke2 dxc1Q Qd3 Qa5 Qd1 Qc7 Ke1 Qd8 Ke2 a5 Kf3 e5 Kg4 g5 f4 e4 h4 e3 c6 a4 f6 e2 Kf5 e1N Ke6 g4 c7 g3 c8B a3 b6 g2 h6 a2 h5 Bg7 b7 Na6 b8R Qdd2 f5 Kd8 h7 Kc7 f7 Ne7 f8R Qd3 f6 Qh6 Nh3 Qhg6 h6 Qd8 Bc4 Qg5 f7 Qh5 Bd7 Bc3 Rb6 Nd3 Nf2 Nf5 Rh3 Qdg5 Qh1 Ng3 Nd2 Be5 Rg8 Rb8 f8R Bf6 Rd8 Qc5 Nf1 Bh4 Rg7 Rc8 Re1 a1N Ne4 Nc1 Ba2 Nab3 Re2 Rf8 h8R Rf2 Re3 Rd2 h7 Re2 Rhf8 Qh6+ Rf6 Qhh5 h8Q Qh6 Nh2 Nf1 Qh7 Bf2 Rhg3 Qh4 R3g5 Qh6 Re5 Nd4+ Kf7 Qh4 Ke8 Qh6 Rfe6 Qh4 Nf3 Nh2 Nfd2 Qh6 Nf1 Qh3 Rbc6+ Kb7 Rcd6 Rc6 Ke7 Kb6 Ke8 Qd5 Nc5 Nc7+ Ke7 Ka5 Na6 Rc5 Rb6 Rc6 Be8 Qb5 Kd7 Qc5 Kc8 Qh5 Bd7 Qh3 Qd3 Qh8 Qh7 Na8+
KbnQr1Nq/n3R1R1/1PqN3p/1b1n1nR1/2p1NRBN/8/1P1R4/k5B1 w - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 b6 e5 g7 c5 f6 h6 f7 f3 g6 c4 d6 a4 Kd5 f2 d7 e4 Bh3 f1Q Nc3 a3 Bg4 a2 Be3 Qdf6 d8R Bc5 f8R Q1f3 Rh5 Bd6 Rg5 Bd7 Bf2 e3+ Ne4 Qg2 Nf3 e2 Nh4 e1N Bg1 Nf3 Rde8 Qh1 Re7 Bb5 Qd2+ Kb3 Rd1 a1N Qd3+ Ka2 Rd2 Be5 Kc5 Qg2 d5 Nd4 d6 Qgf3 d7 Nac2 d8N Nb4 Nb7 Ka1 Nbd6 N8c6 Rff7 Nd5 Rf8 Qe6 Rf4 Nf5 Qd4 Qc8 Qd3 Ngf6 g8R Ne8 Rgg7 Qd8 Qd4 Na7 Qd3 Nec7 Qd4 Re8 Qd3 Nc8 Qd4 Ba6 Kc6 Bb5+ Kb7 Qg2 Ref7 Qf6 Re7 Qf8 Kb8 Qh8 Qd3 Nb4 Qd4 Ncd5 Ka8 Nc6 Qd3 Bc3 Qd4 N6a7 Qf6 Rg8 Qf8 Be5 Qd8 Qh1 Rh7 Rf8 g7 Re8 g8N Qg2 Rhg7 Qf3 Nb7 Bb8 Nbd6 Qc3 Qd7 Qf6 Qd8 Qe6 Qc7 Qd7 Qd8 Qc6+
b1B2n2/1R5P/QqB2RRR/1QN2n2/1r1Nr1RP/R4nq1/1p2n1p1/1k5K w - - 0 1 illegal: No possible last move, all moves rejected
2NB2BR/p4n2/BbRQKBk1/P5Nq/p3q1R1/5n2/2qbP1R1/1R1r3q w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 b5 g4 e5 fxe5 f5 a4 f4 h3 Bf5 a5 Na6 Qa4 bxa4 gxf5 g4 Ra3 g3 Ra2 Rb8 Ra1 Rb6 Bg2 Rg6 Bf1 Rg4 hxg4 Ke7 Rh3 Kd7 Rh1 Ke8 b4 Kf7 d4 c5 Kd2 h5 Kd3 g2 Kc4 h4 b5 f3 g5 h3 d6 f2 Kd5 h2 d7 c4 f6 c3 b6 c2 b7 Qa8 d8B Rh7 e6+ Kg6 e7 Bg7 e8R Nb4+ Ke6 Rh3 b8R Rh5 d5 Rh4 d6 Rh5 f7 Kh7 f8R Be5 d7 Bc7 g6+ Kg7 Nf3 g1B Rf4 Nd3 Rc8 Qb8 Ng5 Be5 Rg4 Qb5 Na3 Bd6 Bh3 f1Q Rb1 Bb6 Rhg1 h1Q Bb2+ Ne5 R1g2 c1Q Nc4 Qff4 Rc6 Nh6 Rh8 Bb4 Nd6 Qe4 Nc8 Nf7 Ba1 Rh7 Bd4 Kh6 g7 Kg6 g8B Qcc2 Ba1 Nf3+ Be5 Qed3 Bef6 Rh6 Bde7 Bc3 d8Q Bd2 Qd6 Rh4 Bd8 Qbc5 R4g3 Rd4 Rg4 Qe4+ Kd7 Qa3 R4g3 Ne1 Be6 Bc3 Ba2 Rd1 Bc4 Bd2 Bb5 Qaf3 Ba6 Qfh5 Rg4 Ne5+ Ke7 N1f3 Ke6 Nf7+
n7/kNr4R/N2Q1q1q/RR2N1B1/N1p1R1p1/P1K3Br/1bPr4/q1r1R3 w - - 0 1 illegal: No possible last move
q3B3/1Qb1R1B1/5BqR/1q2NkB1/P3Rbbr/1n3pP1/KRN3p1/3B2q1 w - - 0 1 legal: proof: c4 b5 b4 a5 f4 axb4 g3 g5 Nc3 e5 Nb1 d5 cxd5 f5 fxe5 f4 Kf2 Nc6 Ke1 Nd4 Qa4 Nf5 Qd1 Ra3 g4 Rg3 gxf5 g4 Kf2 Ra3 Ke1 g3 Nc3 g2 Nb1 Rg3 hxg3 Qe7 Rh5 Qd6 Rh1 Qd8 e4 Kf7 a4 c5 d4 h5 Kd2 h4 Kc2 c4 Kb2 b3 d6 h3 d5 b4 f6 Kg6 d7 h2 e6 Bc5 f7 Bf8 e5 Bd6 f8B Ne7 Be2 Rh5 Na3 Bb7 Ra2 Rg5 Bg7 Nf5 e7 Nd4 e8B+ Kf5 e6 Rg4 e7 Bc7 d6 Bc8 Nf3 Rh4 Ne5 f3 Bg5 c3+ Kb1 b2 Nc2 Nb3 Qd5 Nc1 Re1 h1Q Qb7 Nb3 Bd1 Qf1 Re4 Qb5 Bh5 Qh8 d8R Be6 Rd7 Qa8 Rd8 Bc8 e8R Be6 Re7 Bd7 Rb8 Bc8 Na3 Be6 Ra1 c2+ Ka2 c1B d7 Bf4 d8B Nd4+ Qd5 Qf1 Nc2 Rg4 Be2 Bf7 Re6 Qh1 Re8 Qh4 Bge7 Qf6 Rh1 b3+ Ka3 b1Q Rb5 b2 Qb7 Qe1 Bd1 b1Q Rh2 Qe6 Bg5 Qg1 Rb3 Qh6 Bdf6 Bg6 Re7 Bf7 Rc3 Qb5 Rb3 Bg6 Rb2 Nb3 Rh4 Be8 Bf7 Qh7 Rh6 Rh4 Bd5 Bh5 Ka2 Bg4 Bf7 Qg6 Be8 Qgc5 Re3 Qca7 Re4 Qg1
3Bn2B/q7/PP2N2n/kn1R2qB/1N3pp1/1b1rB2N/BK2qQ2/R4N1q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 b4 Nh3 a5 Ra3 b3 Ra2 Ba3 Ng1 Ra6 Ra1 Rb6 Qc2 Rb5 axb5 a4 Qd1 Bf8 Bh3 a3 Bg2 a2 Bf1 Ba3 bxa3 Bb7 Kf2 Ba6 Ke1 Bc8 d4 Kd7 Kd2 f5 Kc3 g5 h4 c5 e4 Kc7 h6 Kb6 e5 b2 h7 f3 d6 f2 a4 c4 h5 g4 e6 f4 d5 Ba6 d7 Ka5 e7 Bc8 e8B Nf6 b6 Ka6 a5 Bb7 h6 Nh5 d6 Bg2 Be3 Bb7 Qf3 Nf6 Rh5 Nc6 Nh3 Ne5 Nd2 b1N+ Kb2 Nf7 Rd5 Nc3 Qg2 Rf8 h8B Nb5 h7 Nh6 Bh5 Ne8 Bf6 Bc6 Be2 f1Q h8B Rf7 Bh4 Qg5 d8N Rd7 Ne6 Qf3 Bf1 Qe2 Qf2 Rd8 d7 c3+ Kb3 c2 Kb2 Ba8 Bg2 Bc6 Nf1 Bb7 Be4 Bc6 Bh7 Ba8 Bg8 c1Q+ Kb3 Qc7 Bgf7 Qa7 Bg8 Rb8 d8N Bb7 Nc6 Rd8 Rd2 Rd3+ Kb2 Qg7+ Bf6 Qg5 Bd8 Bc8 Ncd4 Bb7 Nc2 Bd5 Bgf7 Bb3 Bg8 Nc3 Nb4+ Kb5 a6 Ka5 Bgf7 Nb5 Rb1 Ng8 Nc7 Rd7 Ng3 Bc2 Bb3 Nh6 Ne6 Rd3 Bc4 Rc3 Rd5 a1Q+ Kc1 Qa2 Ra1 Rd3 Bb3 Qf3 Nf1 Qh1 Bc4 Ba4 Bb3 Qe2 Ba2 Bc2 Kb2 Bb3+
1Bqr1Rn1/1P1qB1nQ/nB3B2/1p2R2p/6Q1/N2P2r1/KqNk2Bn/3B4 w - - 0 1 legal: proof: a4 g5 b4 b6 h4 gxh4 a5 Bb7 a6 Bd5 Nh3 Bb7 axb7 a5 Ng1 a4 c4 d5 cxd5 f5 e4 b5 exf5 Bg7 Qb3 Bd4 Qc2 Bb6 Qd1 Ba5 bxa5 Qd7 Ba3 Qd6 Bc1 Qd8 g4 Kf7 f4 Kf6 a6 h5 g5+ Kg7 f6+ Kg6 a7 Kf5 d6 Ke4 f5 c5 d7 e5 d3+ Kd4 Kd2 h3 Kc2 a3 Kb3 c4+ Ka2 h2 g6 e4 g7 c3 f7 e3 f8B e2 f6 e1N f7 c2 Bd6 Qe7 f8B Nf3 d8B Qe1 Bfe7 Ne5 Bcg5 c1Q Bgf6 Ke3 Nf3 Qc7 Nd4 Qec3 Bg2 Qd7 Qg4 Qcc8 Rf1 h1N Bb6 Na6 Bb8 Nf3 Nc2+ Ke2 Rf2+ Kd1 Re2 Ng3 Re6 Nf5 Re5 Ngh6 g8B Ng7 Bb3 Rd8 Nb4+ Kc1 Bd1 Nh2 Nc2 Ng8 B8c7 Rb8 a8Q Nc5 Qaa4 Na6 Qae4 Ra8 Qh7 Rb8 Kb3 a2 Nba3+ Kd2 Rc1 Ra8 Bb8 a1Q Rb1 Nb4 Rc1 Ra4 Rb1 Na6 Rc1 Qac3+ Ka2 Rf4 Rb1 Rf3 Rb4 Rh3 Rf4 Qb4 Bh4 Rf3 Rf8 Rg3 Bhf6 Qb2+
1K4q1/1Q3Brp/p1bQNR2/6nn/1b1B3P/b1rBP2B/pR6/1BN3Bk w - - 0 1 legal: proof: f4 c5 e4 f5 g4 b5 gxf5 e5 fxe5 c4 a4 bxa4 b3 Qa5 bxc4 Qc3 c5 Qe3+ dxe3 Ba6 Bg2 Bb7 Bf1 Bc8 Kd2 Ke7 Kc3 d5 Kd4 g5 h4 g4 c4 a6 c6 a3 Kc5 a2 Kb6 g3 Kc7 g2 c5 d4 e6 Kf6 e5+ Kg7 e7 Kh6 e8B d3 e6 d2 f6 Bd7 f7 Kg6 e7 Kf5 Bb2 Ke4 Nf3 g1B Rh2 Bg4 Nd4 Bh5 Nc3+ Ke5 Nce2 Ke4 Ne6 Kf3 Bd4 Nd7 Nc1+ Kg3 Bd3 Rb8 Rf2 Rb3 Rb1 Ngf6 Rb2 Ne4 Rf6 Kg2 Kc8 Rb7 c7 Bf2 c6 Be1 Bb1 Bh6 f8B Kh1 Bf7 Ng5 e8B Rb3 Bfc5 Rg8 Bd6 Rg7 Bh2 Rc3 Bg1 Bg6 Kb7 Bh5 c8Q Bg6 Qb3 d1Q c7 Qg4 Qb8 Bh5 c8B Bd2 Rf2 Nf6 Bb5 Bg6 Qb4 Nh5 Q8d6 Qg2+ Kb8 Qg3 Bg8 Be8 B5d3 Qg4 Qb7+ Qg2 Nb3 Bc1 Rf6 Qd5 Rg2 Ba3 Nc1 Qb3 Bf7 Qc4 Nc5 Qb3 Bh3 Qd5 Bfg6 Qg8 Bf7 Rg6 Qg3 Bf8 Ne6 Bfb4 Qd6 Rg7 Rb2+ Bc6+
1N1Bk3/1R1N1r2/1rn2pp1/BB1Kp3/1BNQ1n2/2P1b1n1/R2N3P/1qBr4 w - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 gxh5 c5 a4 e5 axb5 Qf6 f5 Be6 fxe6 Qd8 e4 cxd4 exd5 Ba3 Bd2 Bc5 Bc1 Bf8 Kf2 a5 Kf3 a4 Ke4 a3 b4 a2 h6 g6 d6 d3 e7 d2 h7 Qa5 c3 Nd7 b6 Nh6 b7 Ng8 b8N Qc5 b5 Ra6 b6 Bh6 b7 Qa3 Kd5 Bg5 Nf3 Qa5+ Bb5 Rb6 Na3 Bf4 Nc4 Bh6 Qg1 d1N Nfd2 Bf4 Qd4 Nh6 Rf1 Rg8 h8B Nf2 Bg7 Be3 Bf8 Nf5 Rb1 Nd3 Rf2 a1R Na6 Bh6 b8B Qb4 Ne4 Ng3 Ba3 Be3 Ra2 Rg7 Bc7 Qb3 Nd2 Rb7 Ba4 Ne2 Ba5 Ng3 Rbb2 Qb6 Rb4 Re1 Bc1 Rd1 Rb5 Nb8 Rb4+ Nc6 Nb8 Qc7 Rbb2 Qc8 Rb6 Qf5 Bb5 Ra7 Rb7 Ra6 Nb6 f6 d7+ Kf7 d8B Rh7 N6d7 Rb6 e8N Rg7 Bfb4 Nf4+ Kc4 Qb1 Nd6+ Kg8 Kc5 Rf7 N6c4 Kg7 Kd6 Kg8 Nc5 Kf8 Ncd7+ Ke8 Kc5 Nfh5 Kd5 Nf4+
RQ2r3/1B1R3N/qPr2RR1/4pbb1/1NKRpr1b/PN1p3B/3N4/3k1n2 w - - 0 1 illegal: No possible last move
2b2b2/1Rb1N3/n3P1R1/RpK2RBB/qpp3r1/1Q5Q/qrP1R3/1k1N2R1 w - - 0 1 legal: proof: b4 e5 g4 b5 e4 h5 gxh5 f5 exf5 a6 d4 Nc6 dxe5 Nce7 a4 Nd5 a5 Nb6 axb6 a5 Bc4 axb4 Bd3 Rh7 Bf1 Rh8 Kd2 Kf7 Kd3 d5 Kd4 g5 f4 g4 h4 c6 b7 g3 b8R g2 h6 Nf6 h7 Bh6 e6+ Ke7 h5 Kd6 Nf3 Ba6 Nh4 Bg7 h6 Bf8 Be2 Bg7 Ng6 Bc8 Ra5 Nd7+ f6 Rf8 h8Q Rg8 h7 Bf8 Ne7 Rg4 Rb7 Nb8 f7 g1B+ Be3 Qd7 Qd3 Bh2 Rg1 Ra6 Qb3 c5+ Kd3 c4+ Kd4 Qc6 Nc3 Ra8 Nd1 Qa6 Qf6 Bg3 h8R Ra7 Rh6 Ra8 Ra1 Qa2 Qh8 Ra3 Rg6 Bh2 Qd3 Rb3 Qh3 Rb2 Qb3 Qa4 Bf2 Qa2 Bh4 Qa4 Bg5 Qa2 Ke3 Kc5 f5 Bc7 f6 d4+ Kf2 d3 Ke3 Rg2 Bh5 d2 Ke4 Rg4+ Ke3 Bh6 f8R Bg7 Rd8 Bf8 f7 Qa4 Rd4 Qa2 Re4 Qa4 Nf2 d1Q Ra2 Qb1 Nd1 Qa6 Ra5 Qa2 Kf3 Qa7 Re2 Kd4 Kf2 Bg7 f8R Bh6 Rf5 Bf8 Ra3 Qa4 Qbg3 Q4b3 Ra5 Qba4 Qb3 Rb1 Qbg3 Rb3 Ne3 Kc3 Qf3 Kb2 Nd1+ Ka1 Qfg3 Rb1 Qb3 Rb2 Ke3 Rg2 Kd4 Kb1 Kd5 Rg4 Kc5 Na6+
2R1NR2/bQp5/N3B1KN/1n1r1N1B/P1Q1pNP1/4pnN1/r3r2k/2q3q1 w - - 0 1 legal: proof: e4 d5 h4 a5 b4 g5 bxa5 d4 hxg5 d3 cxd3 Bf5 d4 Bd7 d5 Bf5 d6 Bc8 d4 f6 e5 b6 e6 Ra6 d5 Bd7 exd7+ Kf7 Bf4 Ra8 Be5 fxe5 Kd2 Kg6 Ke3 Kf5 f4 h5 a4 e6 a6 b5 g6 b4 a7 b3 g7 e4 Qd3 Kg4 f5 Kg3 f6 b2 f7 h4 Qc4 h3 Nf3 h2 Nd4 e5 Nf5+ Kg4 Be2+ Kg5 Nc3 b1Q Bh5 Qb7 g4 Qdc8 d8N Be7 f8N Qb1 d7 Rh7 d6 Rh6 Nb7 Qf1 d8N Nf6 g8B Nbd7 Ne2 Ne8 Nc6 Qb8 Neg3 Re6 Nb4 Qb1 Rd1 h1R Ng6 Rh2 Nf4 Ra2 Na6 Qc1+ Rd2 Qd8 Bgf7 Rc8 a8Q Bf8 Bg8 Qf6 Qa7 Rd8 Qb8 Re7 Be6 Qh6 Rb1 Qg1+ Rf2 Bg7 Nd4 Kh4 Rb3 Nc5 d7 Nd3 Nd6 Ne1 Qb7 Nf3 Rb2 Nf6 Ne8 Nd5+ Ke2 Nc3+ Ke3 Nb5 Rb4 Rb8 d8N Bf6 Nf7 Rd8 Rb3 Rd5 Rb2 Nd6 Rb6 Nb5 Rd6 Qg5 Nh6 Bg7 Rd8 Bf8 Bd7 Re6 Ra8 Bc5 Rc8 Re7 Be6 Ba7 Bg8 Qf6 Bgf7 Qc6 Be6 Qa1 Ng2+ Kh3 Rf1 Kh2 Rf2 Nd2 Rf8 Qb6 Nf4 Qc1 Ke2 Qc5 Ndf5 Q5g1 Qd4 e3 Kd3 Nf3 Ke4 Rf7 Qc4 Re2 Nd4 Rfd7 Kf5 e4+ Kg6 R7d6 Ndf5 Rdd2 Nd5 Ra2 Nf4 Rd5
5b2/p1r1R1B1/2kP1BrP/nn2B1Q1/p1nqR2N/p1n2B2/N1B3R1/3K3R w - - 0 1 illegal: Other
N2Q4/1K2B1Bp/5qk1/3r3q/r3P1Bb/pQ2PR2/1rpB1BR1/3B1rNb w - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 e5 f3 b5 axb5 e4 fxe4 f5 Ra3 g5 Ra6 f4 Ra1 Nh6 h3 Nf5 gxf5 Nd7 h4 g4 Rh2 Ne5 Rh3 Nf7 Rh1 Ng5 hxg5 Kf7 Rh2 Ke7 Rh1 Ke8 Kf2 Kf7 b4 c5 d4 a5 b6 c3 d5 c4 f6 c2 g6+ Ke8 g7 Kf7 g8B+ Kg6 f7 f3 Ke3 c3 Kd4 f2 b7 g3 b8B a4 e3 a3 b5 g2 d6 Qe8 Kc5 Kg7 Kb6 Qe7 d7 Bb7 d8Q Bc8 Ra2 Be6 Be2 f1Q Bg3 Bf5 Rh3 Ra7 Bg4 Ra5 Bd2 c1R Bf2 Be6 Qb3 Qg5 Rf3 Be7 f8B+ Kg6 Bg7 Rc2 Kb7 Qh5 b6 Bh4 Rb2 Bf5 Bc4 Bd7 Be2 Ra4 Bd1 Qa6+ Kc7 Rg8 b7 Qf6 b8B Bb5 Ra2 Rb2 Kb7 Bf1 Bd6 Re8 Bdf8 Re5 Be7 Rd5 Ra1 c2 Nc3 Rdd4 Nb5 Rd5 Nc7 Be2 Na8 Bf1 Ne2 g1R Rc1 Rh1 Ng1 Bg2 Nh3 Kf7 Be2 Kg6 Rg1 Bf1 Rgg3 Bg2 Bd1 Re1 Ng1 Bh1 Rg2 Rf1
1N6/2KpQ3/Brr5/p1R2Nq1/P1Q1Qp1r/P1Q5/2BRqbr1/1Q2Qbk1 w - - 0 1 legal: proof: d4 f5 f4 c5 dxc5 e5 fxe5 h6 g4 Ne7 Bg5 f4 a3 Nf5 gxf5 hxg5 a4 Nc6 Qd3 Na5 Qd5 Nc4 Qd1 Na3 bxa3 Rh5 Qd5 Rh3 Qd1 Rh8 Kd2 Ke7 Kc3 a5 Kd4 b5 Kd5 b4 c4 g6 e4 b3 h4 g4 e6 Kf6 e7 b2 Kd6 g3 e5+ Kf7 c6 g5 f6 Kg6 e6 Kf5 f7 Ke4 c7 Ke3 h5 Kf2 h6 g2 c5 g4 h7 g3 c6 Ra6 Nd2 b1Q Bd3 Ra8 Nf1 Qb6 Ne2 g1R Ne3 g2 Bc2 Ra7 Qb1 Qb2 Nf5 Qa2 Rh5 Qb2 Ra2 Bb7 c8Q Qg7 c7 Qc3 Ned4 Ra8 Nc6 Qa1 Nb8 Bg7 f8Q Qb2 e8Q Rc1 e7 g1R Qg6 Rg3 e8Q Qg5 Qfe7 Bd4 Qe1+ Kg2 Q8e7 Bf2 Qge6 Ba6 Q6e4+ Rf3 Qg8 Bf1 c8B Ra6+ Kc7 Kg1 Qgc4 Rb6 Ba6 Qb5 Rb2 Rg3 Ra2 Rg4 Rb2 Rg8 h8Q Rh4 Qhc3 Rgg6 Rh6 Rg7 Rc6 Rg8 Ra2 Qb2 Rc5 Rg7 Bd1 Qe2 Rd2 Rc2 Qca1 Rc3 Bc2 Rgg6 Qab2 Rg3 Qbb3 Rg2 Qbc3 Rgc6+
1Rbq3R/p4N2/k1B5/pqp4N/6nK/pB1PR1P1/1r2QRB1/r3B1bR w - - 0 1 illegal: Other
1K2bR1N/Bb6/k2B2P1/2RQQrB1/2NP2p1/b1p3Bp/1B1pp3/nq5B w - - 0 1 illegal: No proof kernel
R4r2/B1Bb1qN1/2Q2K2/4RnR1/1q3krr/BB4qP/B3RPqN/4b1qn w - - 0 1 illegal: No possible last move, all moves rejected
2Q2R1Q/2BKQ2b/3rrr2/1BQ4P/2Q3r1/N1R1n1kq/P1Qbr1N1/1q1n2n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 Kd6 Ke4 c5 f4 b5 d4 e5 h4 g5 h6 c4 h5 g4 h7 c3 f6 b3 f5 g3 f7 g2 f6 b2 Qe2 c2 Qd2 b4 Qe1 b3 Bb5 Nc6 Qd1 Nge7 Qg4 Nb4 Be2 Nf5 Na3 b1Q Nh3 g1N Bf4 b2 Bb5 Rg8 h8Q Bh6 f8Q+ Qe7 f7 Ne3 Bh2 Ra6 Nf4 Nd1 Ng2 Bd2 Qf5 Be6 Qc8 Qd7 Qc4 Rg4+ Bf4 Qc8 Rh3 c1R+ Rd3 Nc2 Rc3 Ra7 f8Q+ Re7 Qfh7 Bg8 Qff5 Re8 Qg5 Re6 Kf5 Re8+ Kf6 Nce3 Qc2 Bh7 Kf7 Re6 Bg3 Rg6 Bh2 Qf5+ Ke8 Re6+ Kd8 Qf3 Qgf5 Qg3 Kc8 e4 Qfe5+ Ke7 d6+ Kf7 d5 Qh3 d7 Rf6 Q2b3 Rc2 Qed4 Ke7 Bc7 Rd6 Qdc5 Kf7 Qe8+ Kf6 d8Q+ Kf5 Qh8 Rf6 Kd7 Kg5 Ne1 Kh4 d6 Kg3 Ng2 Be1 Q4d4 Re2 Qc8 Bd2 Qdc4 Qc2 Bd8 b1R Bc7 Rb2 Rc1 Qb1 Qc2 Rb4 Q4d5 Rd4 Qdc4 Nf2 Rf1 Nd1 Ke7 Rd3 d7+ Rdd6 d8Q Rf3 Qhd4 Nd5+ Ke8 e3 Bb6 Ref2 Qh8 e2 Qdf6 e1R+ Qe7 Ree6 Bc7 Rfe2 Rf2 N5e3 Rf1 Rff4 Rf2 Rfd4 Rf7 Rdf4 Rf8 Rb6 Kd7 Ra6 Bb6 Rff6 Bc7+ Rad6+
b1b2q1B/1q5R/1Q3NPb/NP5r/r1bRR1nK/1b1n1R2/2B2B2/k2r1R1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 Kd4 d6 f5 e5 c5 g6 a5 g7 h5 b6 h4 b7 a4 d7 f3 g5 f4 b5 c4 e6 c3 g6 h3 e7 h2 e8R a3 Bb2 a2 Na3 Ra7 Bd3 Qc7 d8R+ Bd6 Nh3 Nh6 g8B Ra4 Ng5 Na6 b8B Qb7 Bd5 Nc5 Nc4 Bf8 Ne4 Rh7 Rb1 a1Q Nf6 Qa3 Ba7 Qb4 Rf1 h1B Rd7 Bg7 Na5 Ng4+ Kg1 Rh6 Bc2 Rh5 d3 Bf8 Rh7 Bh6 Qe2 Qa3 Qe6 Bg2 Qb6 Bh1 Rfe1 f2+ Kf1 Bf3 R1e3 Bg2+ Ke2 f1B+ Ke1 Be4 Rf3 Be2 Bc6 Bd1 Kf1 Bd5 Kg2 Bb3 Re6 Be2 Rbf1 Bd1 Rfe3 f3+ Kg3 f2 Bh1 Bf3 Ba1 Bfd5 Rf3 Qb4 Rg1 f1B Ree3 Bh3 Rgf1 Bg2 Bb2 Bdc4 Re2 Rg5 Kh4 Qa3 Re8 Rf5 Re2 Rh5+ Kg3 Rh4 Nh5 Ne5 Bb8 Nf7 Rf4+ Be4 R4f3 Qa6 Bd1 Ba8 Re4+ Kd5 d4 c2 Bc7 c1R Bc2 Rd1 Be5 Rh2 Bh8 Nd3 Bc3 Qf8 Be1 Nfe5 Bf2 Nd7 Kg4 Qb7 Kg3 Rg2+ Kh3 Rg5 Kh4 N7e5 Rhf7 Qc6 Rh7 Ng4 Nf6+ Kd6 Qa7 Qb7 d5 Rf5 Ref4 Ke5 d6 Rg5 d7 Rf5 d8R Rg5 Nd7+ Kd5 Re4 Rf5 Qa6 Re5 Ree3 Kd4 Qb6+ Kc3 Nf6 Kb2 Rd4 Ka1 Ree4 Rh5+
2BR1N1Q/k1n4N/P4q2/3q1b2/2RnNnPn/b1K2Qr1/r1q1NN1B/N5n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 b5 d4 h5 Kd2 c5 g4 Kc7 f6 Kb7 f7 e5 g6 c4 f5 c3+ Kc2 h4 f6 h3 a5 e4 g7 h2 d6 e3 d7 e2 d5 Ka7 d6 Nh6 g8N Nf5 Nd2 Na6 Nb3 Nc7 Bf4 Rh3 Rc1 Nh4 Na1 Rg3 Nh3 e1N+ Kb3 c2+ Qf3 Neg2 Nf2 Qe7 d8N Bf5 d7 Qe6+ Kb2 b3 Kc3 Ba3 f8N b2 f7 b1Q Nh7 Qf6+ Be5 Qa2 f8N Nf4 Nde6 Qd5 Rd1 c1N d8Q Nb3 Nd4 Qdd6 Qc8 Qd5 Ne2 Nd4 Rg1 h1N a6 Rb8 Bg2 Rb6 Rc1 Re6 Rgd1 b4+ Kd2 b3 Rc4 b2 Kc3 b1Q Bd6 Qg7 Ngf6 Qa2 N6e4 Qf6 Be5 Rb6 Qe8 Rb2 Qh5 Qb1 Qh6 Ra2 Qg7 Nh3 Qh8 Ng1 Bd6 Rh3 Bh2 Ng3 Rd2 Nh5 Neg5 Qde4 Qe3 Nf4 Qd3 Qee5 Bb7 Rg3 Qf3 Nc2+ Rdd4 Qc1 Bc8 Qc5 Nge4 Qcc6 Kb3 Qce6 Rd8 Qd5 N2c3 Qcd1 Ne2 Nd4+ Kc3 Qc2+
b1QqN1b1/1B3PB1/1b1Kb2B/2BB1R1n/r2nP2q/r5k1/B3q3/1QbRN3 w - - 0 1 illegal: No proof kernel
1R2qqb1/1n3P1n/n3NbRN/8/1r2PK1n/kB1Q1r2/3bNB2/B2B1nNN w - - 0 1 illegal: No proof kernel
rn4n1/Bk2PNB1/2nbR1KR/RBq2b2/5q2/1bNr2Qb/2R2P2/1R1Bb3 w - - 0 1 illegal: No proof kernel
3K2r1/BbPR2n1/QB1q3k/2QB1r2/1N3P1q/1Rb2Bbr/Br1B3r/1n5N w - - 0 1 illegal: No possible last move
n1R2N1q/4Bq1N/Rn5k/1q1br1bb/QN1K4/4RB1n/1R1PNP1r/5R1b w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 g4 h5 b4 c5 g5 e5 g6 a5 f6+ Kh6 d6 a4 g7 c4+ Ke4 h3 b6 c3 b5 h2 d7 c2 b7 h4 b6 a3 f7 h3 Ra2 Qc7 d8R Bg4 Rb2 a2 Rb3 a1Q Bc4 Ne7 g8R Nd5 Qe2 Bh5 Qf3 Na6 b8N Be7 f8N Bg5 b7 Qf7 Qd1 Nac7 Re3 Nb6 Ne2 Ra5 Bd5 Nca8 Ba3 c1N Nbc3 Nd3 Na2 Nf4 Be7 Qb2 Qa1 Qb5 Nbd7 Rh7 Rf1 h1B+ Rf3 h2 b8R Rh8 Rdc8 Nh3 Nf6 Bg2 Rb7 h1B Nb4 Rh7 Qa4 Rh8 Kf5 e4 Ke5 e3 Kd4 Rh7 Rg3 Rh8 Bc6 Bd5 Ra7 Rh7 Ra6 Rh8 Bb7 Rh7 Rc2 Rh8 Rb2 Rh7 Nc3 e2 Re3 e1Q Ne2 Qc1 Rh8 Qc8 Bc6 Bc4 Bf3 Bd5 N8d7 Qcf8 Rg8 Q8g7 Rc8 Qh8 Nf8 Rg7 Ne6 Qc6 Nc7 Bb3 Kd3 Re5 Nc3 Bd5 Kd4 Bf4 Ne2 Qb5 Ne6 Rg2 Nh7 Rh2 Nef8 Bg5
2qBbq1n/bR2N2N/1r3B2/3b2R1/2N5/1P1P1q1n/BN1r1Bnk/1bKN1Q2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 f4 Kf6 b3 e5 b6 c5 d6 h5 b7 a5 d7 c4 Ra4 e4 Ke2 c3 Ke1 h3 Ke2 h4 Ke3 c2 Be2 h2 Ba6 h3 Qf1 Ne7 Na3 Nbc6 b8N Ng6 Bb2+ Nd4 Bd3 c1Q Rb4 a4 Na6 Rh6 Rb7 Bc5 Bb1 Ba7 Nb4 Nh8 Ba2 Qf8 Nc4 a3 Ne2 Rg6 Rg1 h1B Rg3 h2 Nc3 Ne6+ Ke2 e3 Nd3 Be4 Nd1+ Qc3 Ba1 h1B N3b2 Bc2 d3 Bb1 Rg1 Ng5 d8B+ Qe7 Rg2 Bd7 Rg1 Nh3 g5+ Kg7 Rg2 Rb6 g6 Kh6 g7 Kh5 g8N Kh4 f6 Be8 f5 Qf8 Rg5 Bd5 f7 Qc1 Ke1 e2 f6 Qf4 Ne7 Qf3 Kd2 e1N Kc1 Ng2 Re5 Kg3 Rf5 Qg7 f8N Kh2 Nh7 Qf8 f7 Rc8 Rg5 Rcc6 Na4 Re6 Bg7 Re2 Bf6 Rd2 Nab2 Bc2 Bb1 Qh6 f8B Qg7 Nc6 Qh6 Ba2 Bb1 Bc5 Qg7 Bf2 Qf8 Nd6 Bc2 Bb1 a2 Na4 a1Q Ne7 Qd4 Nab2 Qc4 Ba2 Qc8 Ndc4 Bb1
1RKR3q/1rb3b1/1R2n1k1/N5q1/R2P1bQ1/NqrP2rb/NB2N3/n4B1N w - - 0 1 legal: proof: h4 d5 e4 b5 a4 g5 axb5 gxh4 c3 f5 exf5 d4 cxd4 Qd5 Ra3 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 a5 Kc4 c5 b4 e5 f4 h5 g4 h3 b6 e4 Kb5 a4 d3 h2 f6 h4 f5 c4 b7 c3 g5 c2 Na3 e3 Nh3 e2 Nf2 e1B Qg4 h3 Bb2 Na6 Kc6 c1B b8N Nh6 b5 Bf4 b6 Rg8 b7 Nc7 Na6 Ba5 b8N Ne6 Nb4 Ra7 Na2 Rb7 Rg1 Bg7 Nh1 Bac7 g6+ Kf8 f7 Qg5 Rg2 Ke7 f8N Kf6 Kd5 Bd7 Nc6 Bc8 Na5 Bd7 Nf2 h1R Rh2 Rg1 Nh1 Rg3 Rc2 h2 Rc6 Rh8 Rb6 Bc8 Kc6 Rh7 Qh4 Ng4 Qh5 Ne3 Qg4 Nc5 Ne6 Nc2 Rc1 Na1 Rc4 Bc1 Nf4 Ne6 Ne2 B1f4 Ra6 Rb3 Rb6 Bd7+ Kb7 Rc3 Nb1 a3 Ra4 Bc6+ Kc8 Bg2 Nac1 a2 Na3 Bh6 g7 Bh3 g8R Bg7 Rh8 Kf7 f6 Kg6 Nf2 h1Q f7 Qd5 f8R Qb3 Rhg8 Nc2 Re8 a1Q Na2 Qb1 Nh1 Na1 Rd8 Qe1 Nec1 Qe5 Rh8 Bh6 Rhf8 Qh8 Ne2 Rg7 Rf5 Rd7 Rfb5 Bg7 Rb8 Rd5 R5b6 Rb5 Rd6 Rb7 Rc6 Qg8 Rb6 Qh8
1B3k2/2n1Rn2/b2q3R/1R1rq2N/2P1P3/r2RBr1n/2b2QRN/bB1KBn2 w - - 0 1 illegal: No possible last move, all moves rejected
1B1q3r/1kb1q1Bn/Nb5B/2BN2PB/2bn2RQ/q2n2r1/R1B3P1/2Qq1K2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 f5 b4 a5 e5 c5 e6+ Kc7 d6+ Kb7 b6 h5 e7 f3 e8B h4 d5 a4 b5 a3 d7 h3 d6 f2+ Ke2 a2 Nf3 f4 Nd4 h2 Nc6 c4 Nb4 c3 Bh5 c2 Na6 Nc6 Bb2 c1B Nc3 Nf6 Nd5 Nh7 Bg7 Be3 Bh6 Bd4 Qc1 f3+ Kd1 Qe7 d8B Be6 Bd3 f1Q+ Kd2 f2 d7 Ra7 Bc2 Qe1+ Kd3 Q1b4 Ke2 Qd2+ Kf1 Be5 Bc7 Nd4 d8B Ra8 Bb8 Bc7 Ba7 Bg7 Rb1 a1Q Rb2 Qaa3 Ra2 Qe8 Be7 Qd8 Bf6 Bf8 Be5 Bc5 Beg7 Qe7 Qe1 Raf8 Qc1 Rf3 Nf6 Kc8 Nd5 Rg3 b7+ Kd8 b8B Kc8 Bb3 Kb7 Ba4 B5b6 Bc2 Ba5 Bc5 Bab6 Nc3 Bb3 Nd5 Bc4+ Be2 Nc6 Nf6 Ka8 Ba7 Bb3 Bh5 Qdd8 Nd5 Ba5 Qf4 Nd4 b6 Ne6 Ke2 Nd4+ Kd1 Bc4 Rf1 h1N Qh4 Be5 Re1 Bc7 Re4 Qb3 Rg4 Qa3 Bb4 f1Q+ Kd2 Rc3 Bc5 Qf4+ Kd1 Qef7 Ke1 Nf2 Bf5 Rd3+ Kf1 Qd2 Bfg6 Qfe7 Bf5 Kb7 Be4 Kc6 b7 Rg3+ Bd3 Qb3 b8Q Qa3 Qb2 Bab6 Bb8 Kb7 Qc1 Bb5 Kg1 Bc4 Bc2 Nd3 Kf1 Qd1+
NBBNR1b1/5r2/n1bN4/Q2KP3/1bPB1q1R/rk1Nqrn1/1B5B/2n3r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e6 Ke7 Kd2 Kd6 Kd3 Kc5 Ke4 Kb4 c4 d5+ Ke5 a5 h4 f5 e4 g5 h6 a4 h5 f4 e7 a3 e8N f3 b6 g4 h7 a2 h6 g3 b7 d3 Nh3 g2 Nd2 g1R Nc7 f2 Qe1 d4 Nf4 Be6 Bh3 Ra3 Na8 f1R b3 Nf6 Bb2 Na6 b8B Bf7 Bc8 Nh5 Rh4 Qb6 Bc7 Rhg8 h8B R8g7 h7 Bg8 Rb1 a1N Rc1 Ka5 b4+ Ka4 b5 Nb3 Rc2 Qa7 b6 Nc1 b7 Rf7 b8B Rf3 Rc3 Bc5 Rb3 Be7 Rb6 Bc5 Re6 Qb6 Re8 Kb4 Nf1+ d2 Ng3 Kb3 Kd5 Qf6 Bg7 d1Q Nf5 Qd3 Qa5 Qe3 Nd3 Bb4 Bh2 Ng3 Nd6 Qff4 h8N Ra7+ Nhf7 Rc7 Ne1 d3 Bgd4 d2 Be6 Re7 Nd8 Rf7 e5 d1B Rh8 Ka2 Rh4 Ba4 Nd3 Kb3 Bc8 Bc6+
BN6/2rq1Br1/2n1nbNB/P1R2K2/1R2R3/k2B1RP1/2r2qnB/2nb1q1Q w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Ke3 b5 Ke4 c5 d4 h5 a4 h4 e6+ Kd6 a5 h3 e7 b3 e8B c4 g6 h2 g7 c3 Nd2 b4 Ra4 c2 Ndf3 b2 Nh4 b1Q Ng6 b3 Nf3 b2 Rb4 Be7 Bh6 Ra7 Bc6 Nd7 Ba8 Rh7 Kf5 c1N+ e4 Qa2 Bd3 b1Q Rf1 h1R Nfe5 Nf8+ Nd7 Rc7 Rf3 Ne6 Nb8 Rh2 Qh1 Qf2 g3 Nf6 g8R Ng4 Re8 Bf6 Re7 Ne5 Re8 Rd7 Re7 Nc6 e5+ Kc7 Re8 Rg7 Re7 Ba6 Re8 Bb5 Re7 Ba4 d6+ Kc8 d5 Bd1 Re8 Re7 d7+ Kc7 Ke4 Qc8 d8R Qd7 Kf5 Rg2 Rc4 Qb5 Rc5 Qc4 Be4 Qcf1 Bd3 Nf4+ e6 Kd6 Rc8 Rh2 Rb5 Rg2 Rb4 Kc5 d6 Rh2 Rc4+ Kb5 Rc5+ Kb4 Rc4+ Ka3 Rb4 Qd4 Rc7 Rc2 Rcc8 Qdf2 Rc7 Qc8 d7 Qb7 d8B Qba7 Rc8 Rc7 e7 Ne6 Rg8 Qad4 e8B Qd7 Be7 Bh4 Bc5 f6 Kg4 Bg5 Bf7 f5+ Kh5 f4 Kg4 Bf6 Kf5 Ncd8 Rf8 Nc6 Re3 f3 Ree4 Q2e2 Bg1 f2 Bh2 Rb7 Rf4 Bg5 Qg2 Ncd8 Rfe4 Qh1 Ke5 f1N Be8 Qf2 Rc5 Rc7 Qg1 Ne3 Rf3 Ng2 Kf5 Nc6 Bf7 Bf6 Qf1 Ngf4 Qg2 Qhf1 Qh1 Ng2
NB2k1N1/1N4qR/Bb2N1P1/1N4qb/2Rr1r2/q1Pr4/1B2n1bK/2Bn1r1Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 a5 Kf2 d5 Kg3 e5 b4 h5 g6 e4 b6 d3 g7 e3 c3 a4 b5 d2 f6 d4 b7 a3 b6 a2 f5 e2 Qe1 d1Q Nf3 d3 Nd4 d2 Na3 h4+ Kh2 h3 g4 Ne7 g8N Ra4 g5 Nbc6 b8B Nd5 g6 Rh4 b7 Bc5 Nab5 Ne3 Nb3 Bb6 Na5 Rad4 Bf4 Rd3 b8B Nd4 Bb2 Be6 Bh6 Rf4 Nb7 Qb3 Qd1 e1R Qf3 d1R f7+ Kd7 f8N+ Ke8 f6 Qa3 Qd5 Bg4 Ne6 Ne2 Qe4 Bh5 f7+ Kd7 f8N+ Ke8 Qd5 Qg5 Nd7 Qf8 Rb1 a1Q Qe4 Qg7 Qf3 Bd4 Nb6 Qa3 Na8 Bb6 Ra1 R1d2 Ra2 Nd1 Qg2 Qb3 Ra4 Qa3 Rc4 Rdd4 Rg1 R2d3 Qh1 Qd8 Rg5 Qde7 Rf5 Qg5 Rf7 Qgf8 Rh7 Qg7 Bg2 Rg1 Na5 Re1 Bb7 Ref1 Ba6 Rg4 Nb7 Q5f6 Bhc1 Rgf4 Qg1 Qg5 Kh1 h2 Be5 Qf5 Bb8 Qfe5 Kg2 h1B+ Kh2 Bg2 Qh1 Qg5
2B3Q1/4qB1q/QBB2PK1/1r2R2n/Nn3B2/3kBP2/R3rb1r/qN2nr1b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 c4 e5 b4 h5 g4 a5 f6 Ke6 b6 h4 b5 e4+ Kd2 Ke5 c5 h3 b7 e3+ Kd3 e2 c6 h2 c7 a4 g6 a3 g5 a2 b6 Bc5 g7 Qe7 Be3 Ra5 Qa4 Na6 b8B Rb5 Ba7 Bb7 c8B Rh7 Bg2 e1N+ Ke2 Ba8 b7 Nb4 Bb6 d3+ Kd2 d4 Bc6 Rh4 Ne2 Re4 Rf1 h1Q Qa6 Qh8 Nec3 Rh4 Na4 Rh2 Be8 Ke4 b8B Bd5 Bbf4 Bb7 Kd1 d2 Ke2 Bd5 Bc6 d1R Rg1 Rc1 Kd2 d3 g6 Nh6 g8Q Nf5 g7 Ng3 Rg2 Nh5 Rg5 Rd1+ Kc3 Rd2 Rf5 Re2 Rg5 Kf3 Re5 Be4 Kc4 d2 Kc3 d1R Kc4 Red2 Kc3 Ke2 Kc4 Bg2 f3 Bh1 Kc3 Rb2 Kc4 Nbd3 Kd5 Nb4+ Ke4 Rc2 Kf5 Kd3 Kg6 Rce2 Qh7 Rc1 g8B Bd4 Bf7 Rd1 Bd2 Bf2 Bde3 Rc1 Qg8 Rd1 Nd2 Rc1 Rb1 a1Q Rb2 Ng2 Nb1 Rf1 Rc2 Ne1 Ra2 Qh7+
2B2n2/NbKBn2B/Q2P4/1n1R2qq/NP1Br2b/R1b1N3/2Nr1kr1/n4N2 w - - 0 1 illegal: No possible last move
Q1q3r1/2bBR3/P3Q2n/2RrBBbB/bN5B/q1n3q1/1bN1P1nk/1KB5 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 d4 Kd7 Kd2 f5 Kc2 c5 a4 g5 h4 b5 d6 Ke6 h5 c4 a6 b4 a5 b3+ Kb2 f4 h6 Kf5 d5 f3 h7 c3+ Ka3 b2 Ka2 f2 d7 g3 a7 Kg4 e6 c2 d6 g2 e7 Kg3 e8B g4 a6 Be7 Rh6 Bg5 Nh3 g1B Bg6 Kh2 Na3 b1N Qd5 g3 Bh5 g2 Nf4 Nc6 Nd3 Na5 Re6 Nc4 Re7 Nh6 Nb4 Rg8 h8B Ne3 Qe6 Nc3+ Kb2 Qa5 d8B Bd7 Ra2 Bc6 d7 Ba4 Ra1 Rb8 a8B Rb5 Be4 Rd5 Bf5 Qc7 Ra2 Qc8 Ka1 Kh1 Bf6 Bh2 Be5 g1Q B1h3 f1Q Rb2 Ng2 Rb3 Nd1 Rc3 Qf3 Rc5 Nc3 Qd6 Qd1 Re8 Ng4 Bf4 Ne4 Bfg6 Qdd3 Ka2 Bh6 Bh4 Kg1 Re7 Bg5 Be8 Qf2 Qe6 Nh6 Bf5 Bg3 Bc7 Kh2 Bd6 Be5 Bb8 Qfg3 d8Q Qb7 Bd6 Qc3 Qa8 Qc8 Bd7 Bef4 Be3 c1B Nac2 Qa3+ Kb1 Bb2 Bc1 Bc6 Be5 Ba4 Bc3 Bc7 Be5 Nc3+
N2RBBK1/2NP1QNN/2N1b3/2R4r/kn1n1PbQ/rN4qb/1b3b2/2b4n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 h5 d4 a4 b4 h3 d6 h4 Kd5 c4 b6 a3 b7 h2 f6 h3 b5 a2 b6 e4 f7 c3 g5 c2 g6 e3 g7 e2 Ba3 c1B Nc3 e1N Nf3 Nd3 Nd2 Nc5 Na4 Qh4 Qh5 Nh6 g8Q Ne6 Bb5+ Nc6 b8N+ Kd8 b7 Bd7 Na6 Qe7 b8N Rh7 Nb3 Ng4 Rd1 Nf2 Nc7 Qh4 Nb6 Nh1 Ba4 Bc8 d7 Qg3 Bb5 Ra4 Nba8 Nb4+ Ke5 Ra6 d5 Nd4 Qgg5+ Be7 f8N Ra4 Qf5 Bc5 Kf6 Ra5 Qh4 Rh5 Rb1 a1B Nh7 Bab2 Qg6 Ba7 Qf7 Ra4 Ng5 Bb6 Kg7 Ra5 Kg8 Ra4 Qf5 Ke7 d8N Kd6 Ra1 Be6+ Qf7 Ra5 Be8 Ra6 Nd2 Kc5 d6 Ra7 Nbc6 Bg4 Nce6+ Kb5 Ng7 Ka4 Nb3 Nf3 d7 Kb5 Nba5 Nc2 Bd6 Nf2 Be7 h1B Nde6 h2 Bb4 Bg2 Nb3 h1B Nh7 B2h3 Bf8 Nb4 Rd5+ Bc5 Ra6 B1g2 Re5 Nh1 Nb6 Bf1 Ra3 Bc4 Rf5 Bd5 Ra2 Bf2 Ra1 Rb7 Ra8 Ra7 Rd8 Nd4 Na8 Ra3 Nec7+ Ka4 Rg5 Bc4 Rc5 Bce6
2b1n1n1/QBq4k/PNn2B1b/r4r2/1K1NN2b/3N4/1R3P1B/bRBNn1b1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 d4 c5 Kd2 b5 h4 e5 h6 g5 f6 Kg6 d6 g4 a5 g3 d7 g2 f7 b3 Kc3 e4 a6 b2 h7 e3 h5+ Kg7 d5 e2 h6+ Kg6 d6 e1B+ Nd2 c4 Rb1 Qb6 d8N Be7 d7 Nc6 Ne6 Qc7 d8B Bh4 Ne2 g1B Bg2 Rb8 N6d4 b4+ Kc2 b3+ Kc3 Rb5 Bf6 Ra5 f8N+ Kf7 Nd7 Kg6 Nb6 Rf5 Ra1 Ra5 Ra2 b1N+ Kb2 Rf5 Nc3 Na3 Nde4 Nc2 Qe2 Bd2 Qe3 Ne1 Ka3 b2 Nd1 b1N+ Ka4 c3 Rb2 c2 Be5 Ba5 Bh2 Nc3+ Kb3 Nge7 Kc4 Rd8 h8N+ Kh7 Ng6 Nb5 Ne5 Ng8 Nd3 Nd6+ Kb3 Ne8 Ka3 Kh8 h7 Rdd5 Bf3 Kg7 h8B+ Kh7 Bf6 Bc3 Ra2 Ba1 Rb2 Na7 Kb4 Rde5 Ng3 Rc5 Bb7 Ra5 Ne4 Nc6+ Kc3 Rh5 Nc4 Ra2 Ne2 Nb8 Bd2 c1B Kb4 Raa5 Qa7 Nf3 Nd4 Rhf5 Bdg5 Bd2+ Ndc3 Be3 Nb6 Bf4 Bg3 Bh2 Rhb1 Bg1 Nd1 Ne1 Bh2 Nc6+ Kc3 Be5 Bc1 Bf4 Kc4 Bh6 Kb3 Ne5 Kb4 Nc6+
Rq2N1r1/4PQ1P/1b3bbQ/3Knrnr/1R1n4/RbN2r2/2k1B1R1/4BR1R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 h4 a5 b6 c5 h6 g5 h7 f3 h5 a4 h6 a3 d6 f5+ Kd5 f4 e4 c4 d7 f2 b7 a2 e5 f3 e6 c3 e7 c2 Nd2 g4 Ne4 Kb3 Bd2 g3 Nf6 g2 Be1 Bg7 Be2 f1R Ne8 Nc6 b8R+ Bb7 Qc1 f2 Qf4 c1N Qf7 Kc2 b4 Nb3 b5 Bf6 b6 Bc8 b7 Ne5 Rb1 a1R Rd1 Qc7 d8R Bd7 Rbc8 R1a4 b8R Ra3 Rb4 Ba4 Rd6 Rb8 Ra6 Ra8 Rd8 Rc8 Ra8 Qa7 Rd7 Qb8 Rda7 Rc5+ Ke6 Rc8 d5 Rd8 d6 Nd4+ Kd5 Rf3 d7 Rf5 Nf3 g1B Nd2 Rc8 d8R Rc5+ Ke4 Rh5 Ra1 Rc3 Rd5 Rf3 Nb1 Ndc6 Bc4 Na5 Qg6 Rd3 Nc3 Bb5 Bd2 Nac6 R7a3 Ba4 Rd4 Rdh3 Kd5+ Rf5 Rg4 Rh5 Rg2 Bg5 Qf7 Nf6+ Kc5 Rg8 h8Q Nh7 Ba2 Bf6 Be6 Ng5 h7 Re1 Rab1 Re3 Bc4 Ref3 Kd5 f1B Qhg7 Bd3 Rg3 R5f4 Qh6 Bg6 Be2 Rf5 Rg2 Bb6 Rbf1 Nd4 Be1 Bb3+
nB1bnqK1/b7/Q1R1b3/R4B1B/n1Q1B2B/1r3r1n/4P1NP/bq1k2NB w - - 0 1 illegal: No possible last move
1q1b1q2/n3n1RR/k3B2n/1b2B1PB/Pr1b2BB/n2R3N/R2K1b2/3r2NQ w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 f4 Kd7 g4 b5 a4 h5 d4 e5 a6 c5 f5 Kc7 d6+ Kb6 g6 e3 d7 h4 f6 c4 d5 e4 f7 c3 a7 b4 g5 h3 g7 c2 d6 b3 Rh2 b2 Bd3 e2 Ra2 Be7 f8B Nc6 Ra1 Rb8 a8B Nh6 g8B Na7 Bg7 Qf8 d8R Bd7 Ra2 Bb5 d7 Ka6 Kd2 e1N Rh1 h2 Nc3 b1Q Nce2 Qb3 Re8 Bd8 Nf4 Qb1 Be5 e3+ Ke2 Qbb4 Bd2 c1B Nfh3 Bb2 Re7 Nc2 Rg7 Bd4 Be1 Na3 Bh4 Qb1 Ke1 e2 Bf3 Rb6 Kd2 e1B+ Ke2 Bef2 Bh5 Qbb4 Be6 Qbd6 Kd2 Qb8 Bdf5 Rh7 Re7 Rf7 Bfg4 Rf4 Nf3 Rd6 Rg7 Re4 Rf1 h1N Nfg1 Ng3 Rh7 Bf6 d8R Ngf5 Qf3 Ne7 Qh1 Re3 Rd7 Rb3 Rd1 Rb4 Rb7 Nec8 Rbg7 Bd8 Re1 Ne7 Re3 Rc6 Rg3 Rc1 Rd3 Rd1+
R4n2/q2R2K1/2b2B2/BP5Q/rR3NPn/k1qn2Bq/1b1nr1R1/qR1B1N2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 d4 h5 f4 a5 b6 c4 f6 c3 f7 h3 b3 h2 d6 h4 d5 c2 d7 a4 b7 a3 d6 a2 f5 h3 f6 Nh6 Qd5 Ra4 Nd2 Qa5 d8R Bd7 Bb2 c1N Rb1 a1N Be2 Nf5 Bd1 Bc6 d7 Qa7 Nf1 Nh4 Ne2 Bg7 Rg1 h1Q f8B h2 Rg2 Nd3+ Ke6 Rh5 Kf7 Re5 Nf4 Re2 Qh5 Qhg1 Bd4 Ka3 b4 e5 Bd6 h1Q Kg8 e4 f7 e3 f8R Qgh2 Bf6 Nb3 Bc7 Bh8 b5 Bg7 Ba5 Nd2 Rde8 Q1g1 d8R Nd7 b8B Qh3 Re4 Qgh1 Rf7 Nf8 Rfd7 Bh8 Reb4 Qg1 Be7 Bb2 Bf6 Qgh1 Kg7 Qg1 Rf2 Qgg3 Rg2 Qe1 Bc2 Qc1 Bd1 Qc3 Bd6 Nc4 Ne6 Rd2 Rc1 Rf2 Bg3 e2 Nf4 e1Q Bb3 Nd2 Ra8 Qe2 Re1 Qd1 Bc2 Qa1 Rb1 Re2 Bb3 Qc7 Bd1 Qa7
bq1B1nn1/1N1nr2q/NNP2q1r/7q/nN2QP1R/b1k4B/3R2KB/2B4B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 Kf7 b4 a5 c4 e5 f6 Ke6 f7 h5 c5 Kd5 b6 d3 c6 Kc4 b7 d5 g6 d4 g5 e4 g7 e3 g6 a4 b5 h4 b6 e2 Nh3 a3 Nd2+ Kc3 Nb3 a2 Nc5 Rh6 Qc2+ Kb4 Nf4 Bd6 f8B h3 Be7 h2 Bh3 Nd7 b8N Nf8 b7 Ra7 f3 d2+ Kf2 d1N+ Kg2 e1Q Qe4 Kc3 Nba6 d3 b8B d2 Nb7 Ba3 Nd3 Qh4 Ndb4 Nb2 Rd1 h1N Bh2 Ng3 f4 Nh5 Rb1 Qb6 Bd8 a1Q Rh1 Na4 Rb2 d1Q Rd2 Ngf6 g8B N6d7 g7 Nhf6 Bd5 Qdh5 g8N Qb1 Qe8 Qh7 Ne7 Ng8 Be4 Qf6 Ned5+ Kb3 Qe6 Qb5 Nb6+ Kc3 Qe7 Qbe5 Bf3 Qb8 Qe4 Ndc5 Na5 Re7 Nb7 Ncd7 Be6 Qfh4 Kg1 Qa5 Nbc5 Qa7 Bg3 Qg5 Rh4 Qf6 Bh3 Qb7 Bh1 Qb8 Bh2 Bb7 Kg2 Ba8 Nb7 Qh5
B1R3Q1/1R2rNBq/K3NBR1/bnBr1b2/nq3brB/6pk/1PP1R3/1q6 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 g5 h4 a5 f4 e5 b6 d5+ Kb5 a4 h6 e4 h5 a3 b7 e3 h7 e2 h6 e1B Qd2 a2 Ne2 d3 Bg2 g4 Rh2 g3 Nbc3 Qd6 Nd4 Ne7 Ne6 Rg8 h8R d4 h7 Na6 b8R Nc5 Rb7 Bh6 Qe3 d2 Ne4+ Kf7 f6 Kg6 f7 Kf5 f8B Kg4 f5 d1R f6 d3 f7 d2 Bg7 Bf4 f8B Nc6 Qf2 Na4 N4g5 Ra7 Nf7 Qb8 Bc5 Nd4+ Kb4 Nb5 Qf3+ Kf5 Qb3 Kg4 Bd5 Bd7 Re2 Kh3 Bf6 Rg7 Rc8 Rg4 h8B Qc7 Bhg7 Qd6 Rb1 a1Q Bh1 Qa2 Ra1 Qb1 Bh4 Qd3 Bd5 Qh7 Kc4 Nac3 Ra6 Na4 Bf3 Bc6 Kb4 Be4 Ka5 Bf5 Qd5 Qa1 Qd8 Qa3 Qg8 Qb3 Rbb8 Rd7 Ba8 Re7 Rb7 Qa3 Rd6 Qb4+ Ka6 Bf2 Ba7 Bb6 Rdc6 Ba5 Bc5 Rg1 Rd6 d1Q Bd2 Qf1 Bdc3 Qb1 Bcf6 Rd1 Rd5 Bd3 Rg5 Bf5 Rg6 Rd5
R5Q1/2K1Br1R/1R1nB1bq/rRn5/1N1bB2b/1r1PP3/2n2p2/1kq1NRB1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 f5 g4 c5 g6 h5 g5 a5 g7 h4 b6 f3 b7 f2 b5 f4 g6 f3 b6 h3 d6 h2 d7 a4 Bg2 f1R e3 Kd3 Qe1 Kc2 d3 a3 Bb2 a2 Qg3 c4 Nc3 Nh6 g8B Na6 b8R Nf5 g7 Be7 b7 Bh4 Be6 Qf8 d8B Nc5 g8R Nd6 Nd5 c3 Be7 Qh6 Rg7 f2 Rh7 Ra5 Be4 Rf8 Qg8 Rb1 Nf3 Rf7 Rf1 h1Q Ra8 Bd7 b8R Be8 Rb6 Qg1 Ba3 Rb3 Rab1 a1N Bb4 Rf8 Rb5 Bg6 Rb6 Rf7 Ne1+ Kd2 Ba3 c2 Nb4 c1B Kd5 Nc2 Kc6 Bb2 Kc7 Bbf6 Bb2 Bh8 Be5 Bg7 Bf4 Bd4 Bh2 Qh1 Rb2 Kd1 Bg1 Kc1 Ra2 Kb1 Rab8 Rb5 Raa8 Ra5 Rb5 Qf3 R8b7 Qd1 R7b6 Qc1
3RN1k1/3r1q1R/2B4K/7Q/2pBP1b1/3rRrNn/1n2PN1b/q1NRq1Rb w - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 e5 f3 e4 fxe4 Be6 Ra4 Bd7 Ra1 Bc8 Kf2 h5 Kf3 a5 Kf4 f5 b4 Kf7 d4 c5 g4 h3 g5 c4 g6+ Kg7 b6 h2 b5 h4 b7 h3 b6 a4 d6 a3 d5 a2 d7 Na6 b8N Ne7 Kg5 f4 b7 f3 d6 f2 Be3 Qa5+ Qd5 Qe1 d8R Rh7 d7 Qa5 Nc3 Rh6 Nc6 Nc5 b8R Rh8 Nd4 Qa4 Rb3 Rh7 Nf5+ Kh8 Qf7 Nd3 Ng3 Qa7 Bd4+ Rg7 Qf5 Kg8 Kh6 Nd5 Qh5 N5f4 Ra3 Re7+ g7 Nb2 Rd1 a1Q Na2 Qb7 Re3 Ra3 Nc1 Rd3 Re8 Qba7 d8R Rd7 Re7 Qc7 Bg2 f1R Bf3 Qb7 Bg4 Rf3 Rf7 Qd5 Re7 Qf7 Be6 Rc7 Bd5 Bg4 Ba8 Rd7 Bc6 Rf2 Nf3 Rf1 Rg1 h1B Ng5 h2 Nh3 Rf3 Nf2 Nh3 Nf5 Qf6+ Qg6 Bg2 Rge1 h1Q Rf7 Qe7 Qh5 Qe8 Rf1 Bd6 Re7 Bh2 Ng3 Qg1 Rfe1 Bh1 Rf1 Qg2 Rg1 Qf1 Re6 Rd5 Rg6 Kf7 g8N Qe7 Nf6 Qe1 Ne8 Rd7 Rg7+ Kf8 Rf7+ Kg8 Rh7 Qf7
K1bR1BB1/N1q5/2r2RP1/b5NP/QN1N4/qpR2R1n/R2n2n1/3r1bkr w - - 0 1 illegal: No proof kernel
2N3n1/8/Q1b1PRbK/1pR1r1rN/1nqqBb2/5BPR/3n3B/q2B1kBR w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kf3 c5 Kf4 f5 e4 b5 a4 h5 d4 c4 e6+ Kd6 a5 h4 a6 b3 e5+ Kc7 g6 Kb6 e7 b2 Kg5 h3 e6 h2 d6 f4 a7 c3 d5 Kc5 g7 c2 d7 f3 d6 f2 Ra3 Rh3 Ne2 Kc4 Ng3+ Kc5 Bf4 c1N Bd3 Kd4 Nh5 f1B Be4+ Bd3 Nd2 b1Q Nc4 Rh4 Qa4 Qb3 Qa6 Bb7 Nb6 Nc6 Nc8 Qc4 Rb3 Bb1 Rh3 Nb4 Bf3 Qb6 e8B Kd3 d8B Qbd4 d7 Ne7 g8R Nb3 Bb6 Bc6 d8R Nd2 Rd5 Bc2 Be5 Re4 Rc5 Bg7 Bec7 Be5 Kh6 Bf4+ Rgg5 Rb8 a8B Re5 Bg6+ Ke3 Bd1+ Kf2 Be4 Rb7 Bef3 Bg6 Bb8 Rd7 B6a7 Rdd5 Bb7 Bg3 Rg4 Rg5 Rf4 Rde5 Rf6 Bf4 Ba8 Bd7 Bae4 Bc6 Re1 h1Q Rg1 Qh2 Rh1 Qg1 Bde2 Qga1 Bd1 Be3 Bd6 Ref5 Bh2 Re5 Bg1+ Kf1 Bb8 Ref5 Bg3 Re5 B3h2 Bf4 g3 Ng8+
1R1N1b2/k3Bb1B/N5P1/2r5/2RN1KqP/1b4pb/Rrn2n1b/R1nQR1N1 w - - 0 1 illegal: No proof kernel
1r1N3k/1Q2N3/4PbR1/1B1nb3/nrq1B2p/2PN1b1n/nR2n1N1/K3B1BN w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 b4 h5 e4 f5 g4 Kf7 g6+ Kg7 g5 d5 c3 d3 e6 f4 b6 d4 e7 h4 e8B f3 b5 a4 b7 f2 e5 a3 e6 a2 b6 Ra6 Bc6 Rh5 Qf3 Qc7 Rh2 Qe7 Be4 Nh6 Ne2 Qc7 Ng3 Kh8 Nh1 Ra4 Na3 Ng8 Nc4 Nc6 b8B Be7 b7 Bf6 Ne5 Rb4 Ba7 Nge7 b8N Bb7 Be2 Nd5 g7+ Kg8 Rb1 a1B Rg2 Rh8 Rb2 f1N+ Kd1 d2 Kc2 d1N Kb1 d3 Bg1 d2 Bb5 Ng3 Nd3 Ne2 Ka2 Na7 Nc6 Nf2 Nd8 d1N Bd2 Nh3 Be1 Qc4+ Kb1 Nc6 Rg3 Rh6 Qg2 Rg6 Qf3 Kh7 g8N Kh8 Nh6 Rg8 g6 Be5 Nf5 Rf8 Rb3 Nb2 Ne3 Na4 Ng2 Bb2 Ka2 Bc1 Ka1 Bg5 Rb2 Bgf6 g7+ Kg8 Rg6 Ba8 Nf7 Rb8 Nd8 Kh7 g8N Kh8 Bgf2 Ncd4 Ne7 Nc1 Bg1 Nde2 Qe3 Na2 Qa7 Bc6 Qb7 Nc7 Bf5 Bf3 Be4 Nd5
N2B1bR1/4r3/QbP5/2n1Nn2/n1nn1qNK/7b/R1Nk1pPN/QB1N3r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 Kg3 Ke6 b4 Kd5 c4+ Ke4 e6 f5 c5 d5 b6 a5 b5 h5 c6 f4+ Kh4 a4 b7 f3 b6 f2 e7 d3 e8Q+ Qe7 Ra2 d2 Nc3+ Ke3 Nf3 d4 Nh2 Qe5 g6 d3 g7 Nh6 g8N a3 Nf6 Na6 b8N Ra7 b7 Nc5 Na6 Bh3 b8N Re7 Qc8 Rhh7 Nb4 Qf4+ Qg4 Rh8 Nbd7 Rhh7 Qa4 Rh8 Bb2 d1N Qa6 Kd2 e4 Ne3 e5 Nc4 e6 Rhh7 Nd1 Rh8 Ra1 a2 Nc2 Rhh7 Ne5 Rh8 Rc1 a1B Bd4 Bc3 Ra1 Ba5 Ra2 Bb6 Be2 Qf3 Qg7 Nf5+ Kg5 h4 Nfg4 Qg3 Bf3 Rh6 Be4 Rh8 Ba1 Nd4 Bh7 Qf4+ Kh5 Rc7 e7 Rd7 e8N Re7 Qa4 Kc1 Nc7 d2 Nb2+ d1N Qa6 Kd2 Na8 Nc3 Nd1 N3a4 Re1 Ra7 Re3 Re7 Rg3 Qf6 Bb2 Qf4 Ba3 Nd3 Bd6 Ndc5 Bc7 Ne4 Nf1+ Ke2 Rd3 Nb3 Ng6 Nec5 Qa1 Nd4 Nf6 Be6 Nb4+ Qd2 Rg3 h3 Bd8 h2 Ne5 h1N Rg8 Bd7 Nc2 Be6 Nce3 Ng3+ Kg5 Bd7 Bb1 Rh1 Nh2 Bh3 Nfg4 Ngf5 Kh5 Ke1 Nc2+ Ke2 Nf7 Qf4 Nfe5 Qg3 Kg5 Kd2 Kh5 Qf3 Kg5 Qf4+ Kh5 Nh6 Kh4 Nhf5+
b1RBkBr1/3n2p1/2P1rr2/1BBr1Rb1/Q1n1Kb2/2N3BB/P4r1q/N4Q2 w - - 0 1 illegal: No proof kernel
7B/R2BbPRn/1BNP3r/5N1r/Q1qrn3/3n1B2/rrBp1RKR/kb6 w - - 0 1 illegal: No proof kernel
1b2rk1n/n1r1qb1R/3bp1P1/1P4QB/n4BRr/2R1B1bN/2KR2N1/2B1B3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 h5 g4 c5 f4 a5 d4 e6 Kd2 c4 b6 h3 g5 c3+ Kc2 h4 b7 a4 d6 h2 b5 a3 d5 a2 d7+ Ke7 d6+ Kf7 g6+ Kg7 Be2 h3 Na3 Be7 f6+ Kf8 f7 Ra7 f5 Nc6 b8B Nh6 Nc4 Rc7 Ne3 Na7 Bh5 Qe8 d8B Bd7 Rb1 a1B Rb4 Bc6 d7 Bd6 Qd5 Qe7 Rg4 Bg3 Kd3 c2 Ng2 Bae5 Be3 c1B Kc2 Ba3 Qd2 Qd6 Bdg5 Qe7 Bh4 Bc5 d8R+ Be8 Rd3 Bcd6+ Rc3 Kg7 f8R Bf7 Rc8 Re8 f6+ Kf8 Rd8 Bef4 Nf3 Bfe5 Ng5 Bef4 Rd7 Bfe5 Rd1 h1R Qc1 h2 Nh3 Rf1 Rd5 h1N Rd2 Rf4 Qg1 Nf2 Qc1 Bg8 f7 Nd3 Qg1 Nc5 Qc1 Kg7 Bg5 Na4 f8B+ Kh8 Bh4 Nf7 Bh6 Rb4 B6g5 Kg7 Qg1 Kf8 Qc1 Bh2 Be1 Bhg3 Bgf4 Nh8 Bg5 Qd8 Rh7 Bf7 Bgf4 Nc8 Bba7 Qe7 Bac5 Rc4 Ba3 Rb4 Qd1 Na7 Bc1 Rcc4 Qe2 Bb8 Qd3 Bed6 Qf5 Rc7 Be5 Rf4 Qg5 Rf1 B5f4 Rh1 Nf2 Rh4 Nh3 Bb4 Kb3 Ba3 Kc2 Bd6
2B2Nnn/8/1PNrR1KB/1Q1nrBR1/bNN1P3/b4p2/1B1qrbr1/4k2N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d6 c5 d5 h5 b6 h4 d7 f6 Kf5 h3 e4 c4 g6 h2 d6 c3 g5 a4 g7 c2 b7 f3 g6 a3 Qd3 a2 Nd2 f2 Nh3 Qc7 Nc4 Ra7 Rg1 h1R Rg5 Nc6 b8B Nd8 b3 Rh7 Bb2 c1B Be2 f1N Nf2 Rg1 Bg4 Bf4 Nh1 Nf7 Rb1 Bb7 d8N a1R d7 R7a6 Ne6 Be3 d8N Qd7 Bf4 Bf2 Rd1 Rg2 Nc6+ Kb5 b4 R1a5 Qb1 Rhh2 Rd6 Ka4+ b5 Kb3 Nb4 Bc6 Bh3 Be7 Bfc1 Qd8 Nf8 Ne3+ Kf4 f5 Re6 Qd2 b6 Rd5 Bg4 Rd6 Bh3 Ba4 Bg4 Nf6 g8N Ra5 g7 Re5 Bh3 Bd8 Ne7 Ng8 Nec6 Nd5+ Kf3 f4 Bf5 Be7 Qd3+ Nc3 Qf1 Nd5 Qe2 Bg3 Kg4 f3 Qf1 Bh4+ Kh5 Re2 Kg6 Rhg2 Qg1 Bg3 Qc5 Be1 Qb5 Bf2 Nd3+ Kc2 Ndb4+ Kd1 Qa6 Ngh6 g8B Ke1 Qb5 Nd8 Bf7 Ng8 Be8 Nf7 Bd7 Qd1 Be3 Qd2 Bc8 Rd8 Na2 Ba3 Nab4 Rd7 Rg3 Rd8 Bh6 Rd6 Rg5 Nh8+
4b3/q3K3/RpBn1B2/P1Br1rrn/3RN2k/1Q2P3/bB1nnbB1/1RRN4 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Ke3 g5 Kd4 f5 Kc5 g4 a4 b3 d4 b2 h4 f4 h6 g3 h5 c6 h7 f3 h6 g2 e3 f2 e6 Kf6+ d6 Kg5 a5 Nf6 d5 Qe7 Qb3 Bd7 Nh3+ Kh4 Nc3 b1B Bb2 g1R Nd1 Ba2 Bg2 f1N Rb1 Nh5 Ba3 Rg8 h8B Be8 h7 Nd2 Bf6+ Rg5 h8B Rf1 Bhg7 Qd7 e7 Rf5 Rf1 Qc7 d7 Ra7 d8R b6+ Kd4 Rb7 d6 Nd7 Ra8 Nc5 d7 Nce4 d8R Nd6 Ra6 Rb8 Rg1 Qa7 Bc5 Ra8 Rd7 Rd8 Bh8 Bh6 Nhf2 Bg7 Ne4 Bh6 Kd3 Bg7 Bb2 Be5 Bf6 Bg3 Kc3 Bf2 Kb4 Nb7 Rd4 Rdd5 Re1 Nd6 Kc3 Bf7 e8B Bg6 Bb4 c5 Bc6 c4 Bc5 Be8 Kb4 Nf7 Kb5 c3 Bd7 Ng7 Kc6 Bg1 Ndf2 Nd6 Red1 Nh5 Rf1 Nb7 Kc7 Nd6+ Kd8 Rde5 Bc6 Rd5 Rc4 c2 Rfd1 c1N Rd4 Qa8+ Ke7 Ne2 Rdc1 Qb8 Nd1 Bf2 Bca3 Qa8 Bc5 Qa7+
N2N1B1K/3BP1qp/N1B3Br/Q1R1bn2/B1R1Pn2/1Nn5/bkb5/1r1r3n w - - 0 1 illegal: No possible last move, all moves rejected
2q1nB2/1bPBr3/Q2r3n/NR4Nr/Bp1nBNb1/Pnk1N3/2N3R1/2b3K1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 g4 Kf7 c4 e5 f4 h5 Kf2 d5 a3 b5 g6+ Kf6 g5+ Ke7 g7 b3 g6 Kf6 c6 b2 c7 b4 c5 h4 c6 d4 Nh3 d3 Ra2 e4 Nd2 b1N Kg1 e3 Ng5 e2 Bg2 e1R+ Nf1 h3 Qa4 d2 Qa6 d1B Be4 Bg4 Rg2 Nh6 g8N+ Kg7 Ne7 Kf6 g7 Rh7 g8B Bg7 Bb3 Ng8 Ba4 Bb7 c8B Ra7 c7+ Nc6 Bd7 Rh5 Bd2 Re2 Ne3 Bh6 Bc1 Nd2 Rhh2 Nb3 Bd2 Kg7 f6+ Kf8 f7 Kg7 f8N Kf6 f5 Ke5 f6 Kd4 f7 Nf6 Bc1 Ne8 Nfe6+ Kc3 f8N Ncd4 Nfg6 Qc8 Nc6 Ra8 Ngf4 Rd2 Rh1 h2+ Kf1 Rb8 Na5 Rd1+ Kf2 Ra8 Rf1 h1N+ Kg1 Ng3 Re1 Ngf5 Rf1 Nc6 Nd4 Rb8 Ndc2 Rd6 Rd1 Ra8 Rd5 Ncd4 Qb6 Ra6 Rb5 Re6 Qa7 Rad6 Qa6 Re7 Nf1 Bg7 Be3 Nh6 Bf2 Ne6 Bc5 Ned4 Nfe3 Be5 Ng6 Bg3 Nf4 Be1 Nf7 Bd2 Ng5 Rf6 Bd6 Bc1 Bc5 Rg7 Be7 Rd6 Bf8 Re7
n4B2/R1bn3R/r2PR2B/N2Q3B/4R1bB/1nn4p/KnP2B1k/1N2qrq1 w - - 0 1 illegal: No proof kernel
2BbqR2/N2b1r2/1P2kB2/2R4R/1R1Knn1B/4nq1N/n1rnpP1B/4QB2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 a5 g4 h5 b4 c5 d4 e5 d6 e4 g5 a4 b6 h3 b5 a3 d5 h4 b7 a2 b6 c4 d7 c3 d6 c2 f6 h2 g6+ Ke6 f7 h3 g7 Ne7 g8B Qe8 d8B Nd5+ Kd4 e3 d7 e2 Bb2 c1N Bc7 Na6 b8B Nc5 d8R Be7 Bc3 Ne3 Bd6 Ra7 Qe1 N5d3 Bg3 Bd7 Rc8 Bd8 Bh4 Nf4 Na3 Rh6 Rb1 a1N Rb4 Na2 Nb5 Nb3+ Ke4 Rh5 Bcf6 Nd2+ Kd4 Rc5 Rc7 Rc2 Rc5 Bc6 f8R+ Rf7 Na7 Bd7 Bh7 Be7 Be4 Bd8 Nf3 Nc1 Bb7 Na2 Rg1 h1N Rgg5 h2 Rh5 Ng3 Bc8 h1Q Ng1 Qf3 Nh3 Nge4 Bc7 Nd3 Bh2 Nf4
bk1bB3/N1N2QQ1/1P6/2Q2r2/R1QB2P1/r3KRr1/r3Qp1n/2qrnQ1q w - - 0 1 illegal: No possible last move
4NR1r/1b2qN1N/3q1r2/1Qq4R/BKRnRNqB/5k2/pP2nP1R/bb6 w - - 0 1 illegal: No possible last move, all moves rejected
1bqN1N1R/1K5n/1B2Nr1k/Bb1B1B2/Q1q4N/r2pP2P/1N1qn2n/2R1q3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kf3 g5 Ke4 f5+ Kd5 Kf7 b4 Kg7 c4 a4 h6+ Kh7 c5 f4 c6 d3 c7 d6 e6 d2 e3 a3 b6 a2 e7 g4 e8N g3 b7 f3 b5 g2 b6 f2 Ng7 Bg4 c8B Kg6 h7 Qh4 Qa4 d1Q+ Bd2 Nc6 b8B Bd7 b7 Kh6 Nc3 Nd4 Bc7 Ne2 b8N Bb5 Nf3 g1Q Bg2 f1N Rc1 a1Q Nc6 Qa3 Ne6 Qhe1 Nh4 Qc5+ Ke4 Qb3 Bb6 Qgf2 Ncd8 d5+ Ke5 d4+ Bd5 d3 Nd1 Ra6 Bda5 Nf6 Nb2 Qbc4 Bd7 Rg8 h8N Nh7 N8g6 Be7 Ngf8 Rg6 h3 Nh2 Rg1 Rf6 Rg8 Qd2 Rh8 Qfe1 Nf4 Qcc2 Bf5 Bd6+ Ke4 Bb8 N4e6 Ba7 Ke5 Q5c4 Kd6 Qc2c3 Bc6 Bb8+ Kd7 Qa3 Kc8 Qac5 Kb7 Ra8 Bd5 Ra6 Bc3 Ra5 Qb3 Ra2 Bca5 Ra3 Qa4 Qc8+
b7/1BN1QB1r/1n1B2R1/K1NQb3/BB2pRB1/q1b4q/P2bP1q1/k4n1r w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 f4 Ra8 g4 h5 Qa4+ Nd7 fxg5 Nh6 g6 Ng8 Qd4 Nb8 g5 Nd7 Qh4 Nb8 Qg4 hxg4 h4 Kd7 d4 Kd6 Kd2 f5 Kc3 b5 Kb4 e5 a6 g3 h5 e4 a7 g2 h6 f4 g7 f3 g6 f2 h7 Nd7 Ba3 Ne7 g8B Bb7 g7 Nb6 Nf3 g1B Rh4 c5+ Ka5 b4 Nc3 b3 Na4 b2 Rf4 b1Q Bb4 Qc1 Bh3 f1Q Bg4 Qa3 Bf7 Qh3 g8B Nf5 Ng5 Ng3 Ne6 Qg5 Nc7 Bh2 Rg1 Nf1 Rg3 Re8 a8B Re7 Rg2 Bc6 Bb7 Bg7 Be8 Bg3 Bgf7 Be1 Rg1 Bc3 Rg3 Be5 Rg2 Rg8 h8B Qg6 Bf6 Rh8 Bed7 Rh7 Bh4 Re8 Bg3 Reh8 Rg1 Qg2 Bh2 Qf5 Bg3 Rh1 Bde8 R8h7 Bh2 Ke7 d6+ Kf6 d7 c4 d5 Ng3 d6 Nf1 Bc8 Ba8 Bb7 Bcd4 Bc8 c3 Bb7 c2 Bg3 c1B d8Q+ Kg7 d7 Bd2 Qe7 B4c3 d8Q Qh5 Bf5 Qhh2 Qd5 Qhh3 Qf8+ Kf6 Bed7 Qc1 Nc5 Qa3+ Ba4 Bd6 Qb3 Ke5 Qe7+ Kd4 Bg4 Be5 Qd5+ Ke3 Bc6 Bc1 Kb5 Bed4 Bc8 Kd2 Rf6 Qgh2 Bd6 Qf2 Rgg6 Qfg2 Qb3 Be5 B6b7 Bb2 Rf3 Kc1 Qd5 Kb1 Bg4 Bc1 Ka5 Ka1 Rf4 B1d2
N3n3/b1B1k2K/qqr1rbn1/R3N3/2B1p2B/bR3Pnb/4R1BP/1RQ4R w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 Kd3 d5 c4 e5 b4 a5 b6 a4 c5 a3 c6 a2 f6 g4 c7 g3 h6 g2 b5 Qd7 f7+ Ke7 b7 Ke6 h7 Qd8 b6 Na6 b8R Kd6 b7 Ke7 Nf3 g1B Bf4 Bh3 c8B Nc7 Bg2 Ne8 Nc3 Ra6 Na4 Rc6 Qc1 Qb6 Ra8 Re6 Rb1 a1B b8R Bc3 Ra5 e4+ Ke2 Bb2 Ba6 d3+ Kd2 d4 Bc4 Ba3 Ne5 Bg7 f8R Bf6 f3 Qa6 Nb6 Bf2 Na8 Qb6 Kd1 d2 Ke2 d1N Rb2 Qa6 R8b3 Ne3 Bg3 Nf5 Bh4 d3+ Kd2 Neg7 Rfb8 Ng3 Kc3 Ba7 Re2 d2 R8b6 Bb8 Kd4 d1Q+ Ke3 Qd3+ Kf4 Ne8 Rb1 Qd4 R6b4 Nh6 R4b3 Rg8 h8B Rg6 Bg7 Nf7 Bh6 Ba7 Bf8+ Kd8 Bd6 Qdb6 Bb8 Nh8 Bd6 Be7 Bb8 Rgf6+ Kg5 Ng6 Kh6 Rc6 Bd6 Re6 Kh7 Bf6 Bc7+ Ke7
Nq1B2k1/n3Q1nr/3Qb1Nb/4QB1K/q1p2Q2/rrP1R1R1/3QP3/3Qr2b w - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 e5 dxe5 f6 exf6 Ba6 Qd5 Bb7 Qd1 Bc8 b4 Kf7 f4 a5 Kf2 h5 Kf3 d5 g4 c5 b6 a4 c3 a3 f5 c4 b7 h3 g5 h2 b5 d4 g6+ Ke8 g7 Kf7 b6 h4 Kg4 a2 Nh3 d3 Bg5 d2 Nf4 h3 Ng6 Ra5 Na3 Ne7 g8Q+ Ke8 f7+ Kd7 f6 Ke6 Nb5 Bh6 Kh5 Na6 b8Q Qd6 b7 Nc7 Qd8 Nc6 f8Q Ra3 f7 Ne8 Bf6 Qb4 Qf4 Na7 b8Q Rh7 Qc5 Bd7 f8Q Rb3 Qf8d6+ Kf7 Nc7 Kg8 Na8 Be6 Qcc7 Qb7 Qce7 Qc8 Rg1 h1R Rg3 h2 Bh3 Re1 Bf5 h1B Re3 Qc7 Rb1 a1R Qb5 Qb8 Qbe5 Raa3 Bg5 Rb7 Rb5 Rb6 Rd5 Rb7 Rdd3 Rbb3 Rg3 Qb4 Rde3 Qb8 Qc2 d1Q Qcd2 Rb1 Q8d7 Qa4 Qd1 Rbb3 Q6d2 Qbb5 Qe7d6 Qb7 Bd8 Qb8 Q7e7 Ng7+
B4B2/N1K2b2/B3q2P/nNQ1Pn2/k1B1nB1R/qp2n1r1/3Qq3/3rbB1R w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 g5 Kg3 b5 c4 d5 e4 Kd7 a4 Kc6 h4 f5 e6 d4 a5 g4 Kf4 d3 Ke5 f4 h6 f3 a6 d2 e7 f2 e8B+ Bd7 h7 g3 h5 b3 a7 g2 h6 b2 Ra4 b4 Ne2 g1Q Nec3 b3 Nb5 Qb6 N1c3 b1N Bf7 Be6 Qe1 d1Q Bf4 Qh2 Qd2 Ne7 Rb4 Rg8 h8B Qg4 Bg7 Nf5 Ra4 Be7 Bf8 Bh4 Rb4 Qa5 Ra4 Kb7 c6+ Ka6 c5 Rg6 Rc4 Qa3 c7 Ka5 c8B Qhg2 Bg8 Bf7 c6 Q4h3 c7 Rg3 Rb4 Qf3 Ba6 Qe2 c8Q Qhg4 Bg2 f1N Qc5 N1e3 Bf1 Qg6 Na4 Qc6 Nb6 Nc3 Nc8 Qg6 Rd4 Qgg4 Rd5 Ka4 Rd4+ Bc4 Bd5 Nc6+ Ke6 Qh3 Kd7 Na5 e5 Ne4 Kc7 Rb8 a8B Rb6 Nca7 Rd6 Bg8 Rd8 Rd6 Bf7 Rg6 Rd4 Rg4 Rd3 Qe1 Rd1 Qd2 Bg5 Rh4 Be7 Qcc1 Bb4 Qc5 Bc3 Qd8 Be1 Qd2 Bh5 Bgd5 Bf7 Bc4 Qhg4 Be6 Qg6 Bc4 Qe6
3b1qR1/2n2B1K/k5p1/bRQ2rN1/B1BBNR2/nn3R2/2R1r1PP/2rq2r1 w - - 0 1 illegal: No proof kernel
3NB2B/1N3n2/2bRNP2/Q1q5/bN5Q/Nq2bq2/1KNn1p1P/r1rk1q1R w - - 0 1 illegal: No proof kernel
2R1q3/K3b2b/B4P2/QB1PrkB1/q4Np1/bB2n3/1R1bBR1r/n1N1q1R1 w - - 0 1 illegal: No proof kernel
4QQb1/r2N4/B3BpRB/nP1Nq1R1/1KP1q1B1/1q3q2/b1kB3B/b4nr1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b6 Ke7 Kd2 Ke6 h4 Kf5 b4 Ke4 b7 d5 h6 a5 e6 g5 h7 d3 Kc3 d2 h5 g4 h6 g3 e7 g2 e8B a4 Rh5 a3 Bd7 a2 Nf3 g1Q Qe1 d1B Ne5 Nc6 b8B Qdb6 e3 f6 Ba6 d4+ Kb3 d3 b5 d2 Bh3 Bcg4 Nd7 Qd4 Be5 Qh1 Nc3+ Kf3 e4 Bc5 Bf4 Ra7 e5 Nge7 e6 Rg8 h8Q Nf5 h7 Ne3 e7 Be6+ Rd5 Rg6 Qf8 Bg8 e8B Rg7 Rb1 a1Q h8B Be2 Bb8 d1Q Bd2 Qf4 Rc1 Bd4 Bf7 Na5+ Kb4 Bc4 Re5 Qh4 Nd5 Ba2 c4 Rg5 Rf5+ Ke4 Bg7 Kd3 Bh6 Qhf3 Bh2 Qc2 Rd1 Bb2 Re5 Qcb1 Qe2+ Kc2 Rg1 Nf1 Rf5 Rg6 Qee8 Qhe4 Be6 Rg4 Rg5 Rg2 Rg6 Rg5 Rg2 Rg3 Rf2 Rg1 Rfg2 Be5+ Kc5 Qac3 R2g5 Qbb3 Bhf5 Qf4 Bg4 Qcf3 Qee7 Ba1 Qee8 Qbd3 Kb4 Qfe5 Rg7 Qde3 R7g6 Qb3+
Bb1KbB2/4r1R1/2n1PQ1P/2p1B3/1b3rr1/rB1B4/2qB1Nk1/1nqQR1N1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kf3 g5 Ke4 b5 d4 c5 h4 b3 a4 b4 e6 Kd6 Kf5 b2 e4 b3 a5 g4 h6 g3 a6 g2 h7 Ne7+ Kf6 Nbc6 h5 Bh6 a7 Bd2 h6 Bb4 Nd2 b1R Bd3 Rg8 h8B b2 Rh3 Re8 Rg3 Bd7 Rg8 Qa5 Rg7 Qa2 e5+ Kc7 Nh3 g1B Nf2 Bh2 d6+ Kb7 Nf3 Nd5+ Kg5 f5 e7 f4 e6 Qa3 Ng1 f3 Bd2 Nc3 Kf6 Rc1 d5 b1Q Kf7 Qc2 Kf6 Rb1 Kf7 Rg8 e8B Qac1 Kf6 Rb2 Bh5 Rae8 a8B+ Kb6 Bg4 Re7 Rb1 Be8 d7 Bf4 d6 Ra2 Bgf5 Ra3 d8Q+ Rc7 Ra1 Nb1 d7 Bg3 Qe7 Rb7 Bc4 Bb8 Bb3 Kc7 Qf7 Kd6 d8B Rc7 Bd3 Re7 Ba4 Kd5 Bb3+ Kd4 Bc7 Rf8 Bd6 Rg8 Rh7 Rg4 Rg7 Rea7 Bf8 Rc7 Nh1 f2 Qg6 f1R+ Qf5 Rff4 Nf2 Bd7 Kf7 Ne5+ Ke7 Be8+ Kd8 Re7 Bc3+ Ke3 Qf6 Rf5 Be1 Kf4 Bd2+ Kg3 Ra2 Rf4 Rb2 Qc4 Rc2 Qe4 Rc4 Qg6 Re4 Kg2 Re1+ Nc6+ Kc8 Rf5 Rh7 Rb7 Bdc2 Rg7 Qd4 Qf6 Bd3 Re7 Qd8 Qfc3 Be5 Rff4 Rg7 Rea7 Qf6 Q3c2 Nf3 Na5 Kd8 Re7 Ng1+ Nc6+
b1Q2nb1/3b2q1/2RpN1Q1/7N/2N2P2/Nkrr4/1nNPb1BB/K1q1R1qN w - - 0 1 illegal: No possible last move, all moves rejected
2R1BnbB/b3B1b1/kP3B1n/2B1r1K1/3q1N1p/3q1PR1/3R3b/1QrqN2R w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 a5 Kf4 h5 g4 c5 d4 Kc7 b4 Kb6 f3 c4 f6 e5+ Kg5 c3 d6 a4 d5 c2 d7 e4 d6 a3 Ra2 e3 Ne2 h3 Nf4 e2 Bb2 Qe7 d8B+ Qc7 d7 e1B f7 c1B Be7 h2 d8B Bg7 f8B h4 Bef6 Bf2 Bde7 Kb7 b6 Nh6 Bb5 Be6 Be8 Qc4 b5 Nd7 Bbc3 Bf7 Rd2 a2 Na3 a1Q Nc2 Ra5 Ne1 Qd3 Qb3 Be3 Qb1 Bg8 Bc5 Qa4 B8e7 Nf8 Ba1 Qad4 Bc3 Kc8 b7+ Kc7 b8R Bb2 Rg1 h1Q Rc8+ Kb7 Rf1 Bg1 b6 Bh2 Rg1 Ka6 Rg3 Qhf1 Rg1 Ba1 Rh1 Rh7 Kh5 Qfe2 g5 Qd1 g6 Bb2 Kg5 Ra1 Qc2 Rc1 Qb1 Rh8 Bd8 Ba1 Bfe7 Be5 g7 Bb8 Bf6 Ba7 Bde7 Ba2 g8R Rh7 Bed6 Re7 Rg6 Re3 Bde7 Bg8 Bh8 Q4e4 Bcf6 Be5 Kh5 Qed4 Rg3 Re2 Kg5 Re4 Bd8 Re2 Bfe7 Bg7 Bf6 Re6 Bde7 Re5+
2n2RN1/1kbqrBq1/1P6/b1R1Rr2/R1p1N2q/4Q1Bb/n2Rq2P/QK5R w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 d4 a5 Kd2 c5 Kc2 Kc7 f4 g5 d6+ Kb7 b6 e5 f6 g3 f7 g2 d5 e4 f5 e3 d7 e2 b5 e1B d6 g4 f6 a4 Nc3 a3 Bc4 a2 Nd5 g3 Ne7 Rh7 Nh3 g1Q Nf2 g2 Bf4 Bg7 f8Q Qf1 f7 g1Q Ne4 Qc7 d8R Bg4 d7 Ra5 Rc8 Bh3 d8R Qg5 Qe8 Qh4 f8R Qe2+ Rd2 Qd7 Bf7 c4 Bg3 Be5 Rc5 Bc7 Qc1 Nc6 Kb2 Nf6 Ng8 Na7 Qd1 Nc8 Kc1 Kb8 b7 Nd5 Qe6 Ka7 b8R Nc3 b6+ Ka6 Ra8+ Kb7 Rb1 Rb5 Ra4 a1Q Kc2 Ra5 Rbb5 Na2 Re5 Qad4 Rbc5 Rg7 Qa1 Rb5 Bg6 Re7 Bf7 Ra5 Kb1 Rb5+ Rb2 Ba5 Qh6 Qc3 Qe3 Qcd4 Rc6 Rd5 Rd2 Qc3 Rc5 Qd4 Rg5 Rf5 Rh5 Qg7 Rg5 Rf4 Rge5 Rf5
KBn3B1/r1Nb1B2/1P2q1R1/1n1NprN1/1R1q4/PB1BQ3/Nk3bqn/n7 w - - 0 1 illegal: No proof kernel
5nN1/2bQNKB1/P3N3/p2QR3/2qq2NN/Pbrb4/1Bb2N2/Rn1r2kr w - - 0 1 illegal: No proof kernel
BRB2r2/5bpR/R2b1nPR/5r2/1NP1B2Q/1B2b1nR/1n2k2K/nqqN4 w - - 0 1 legal: proof: f4 b5 a4 c5 axb5 e5 fxe5 h6 g4 c4 g5 c3 g6 Ba6 dxc3 Ba3 c4 Bf8 c5 Bc8 Bg5 hxg5 Kf2 Ke7 Kg2 Ke6 h4 Kf5 c4 Kg4 e4+ Kf4 b4 Ke3 e6 a5 e7 d5 e8B f5 e5 f4 b6 d4 b7 f3+ Kh2 a4 e6 f2 h5 g4 e7 a3 b5 a2 c6 d3 h6 d2 b6 Ra5 h7 Ra4 c7 Ra3 Nf3 Rb3 Ne5 Nd7 b8R Ngf6 b7 Nc5 Bg2 f1Q Be4 Qd5 Nc3 Qdd3 Ba4 Be6 c8B Qb1 e8B Bd6 B8c6 Rb5 Bb3 Rf8 h8R Bf7 Rh6 Qe1 Qc2 Qec1 Nd1+ Ke2 Ra8 Ra5 b8R Rb5 Ra6 g3+ Kh3 g2 Ba8 g1B Nd3 Be3 Nb4 Ra5 Kg2 Rb5 R1h3 Ra5 Qc3 Rb5 Qd4 Ra5 Nf2 d1N Rh7 Nb2 Nd1 Ncd3 R7h6 Nf4+ Kh2 Rf5 Rh7 N6h5 Qf6 Ng3 Qh4 Nd5 Rh6 Qbc2 Rb1 a1N Rh7 Nd3 Rb2 Nf6 Rba2 Nb2 R2a5 Rf3 Rah5 Rf5 R5h6 Q2b1
BN5B/1R2pP2/q1B1r2q/n4Qr1/1Pk5/RNB1rrb1/N2BbN2/K4qn1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 d4 Kd6 Kd2 a5 Kc2 h5 f4 c5 g5 c4 b6 h3 g6 h4 b7 a4 f6 h2 g7 h3 f5 c3 f7 a3 f6 a2 Bd2 Be6 Bg2 Qc7 Qh5 Bd7 Qf5 Nh6 g8B Nc6 b8N Bg7 f8B Ra6 f7 Qb6 Bh7 Be5 Bg7 Rg8 Bh8 Rg5 b3 Kc7 d6+ Kb7 d5 Na5 Bf3 Bb5 d7 Bg3 d8B Ng4 d6+ Qc6 d7 Nf2 Kc1 c2 Kb2 c1R Nc3 Rf1 Bc7 Re1 Bce5 Kb6 d8N Re3 Ne6 Be2 Nc5 Qh6 Ba8 Rf3 Rb1 a1R Bg6 Ra3 Na2 Kb5 Bec3 Re6 Ka1 Rfe3 Bh5 Qg6 Bhf3 Qf6 b4 Kc4 Rb3 Qg6 Bfc6 Qh6 Nf3 Qf6 Rd1 h1Q Nd3 h2 Nd4 Qf1 Rc1 Nh3 Nf2 h1Q Rd1 Ng1 Rc1 Ra4 Ra3 Qhh6 Nb3 Qe5 Rd1 Qb5 Be1 Qa6 Rd7 Nb7 Bd2 Ra5 Rc7 Rb5 Bdc3 Na5 Rb7 Rbe5 Bd2 Rf3 Bc3 Re4 Bd2 Ree3 Bdc3 Qg2 Bed2 Qf1+
1K4Nb/Bn1P4/5b2/r2N1NN1/Rq2b3/bQnN2p1/1NQPrR2/1q1B1nk1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 h4 g5 f4 e5+ d6 a5 b4 g3 h5 a4 h6 c6 h7 a3 f6 g4 f5 a2 b6 g2 b5 g3 f7 Bg7 f8N Bb7 d7 Ra3 Kd6 c5 f6 c4 f7 c3 Be2 c2 Ng6 Rf3 f8N Ra3 Rh2 Bd5 b7 Ra7 b6 Ra4 Nh3 g1Q Ne7 Qe8 Kc7 Ra5 Rf2 Nc6 b8Q Nf6 b7 Nd8 Ng8 Qe7 Ng6 Qb4 Ba3 c1B Ngf4 Bc6 Qc8 Nd5+ Kb8 Nc3 Qb3 Bf6 Bd1 Qh1 Nd3 Qe1 Nh6 Re8 h8N Re7 Ng6 Re8 Re2+ Kf3 Ne7 e4 Nef5 e3 Nb2 Be4 Ng8 Qg1 Rg2+ e2 Qcc4 Ree5 Qc2 Bh8 Q4b3 Qh1 Kc8 Qf1 b8N Nb7 Nc6 Qh1 Rh2 Qg1 Kb8 Qgb6 Rh1 Kg2 Rf1 e1N Ng5 Nf3 Rf2+ Kh1 Qc4 Nh2 Q4b3 Re6 Ne5 Kg1 Ned3 Ree5 Nd4 Nf1 Nf5 Q4d4 Bc5 Qdb4 Nc4 Ba3 Ncb2 Bh1 Bd4 Re2 Bc5 Qg6 Be3 Be4 Ba7 Nb5 Nc3 Qh7 Rc1 a1B Nd5 Qg6 Na4 Baf6 Nab2 Nc3 Ra1 Qh7 Nc4 Bc1 Ra4 Ba3 Ncb2 Qhe7 Qc4 Qb3 Qb5 Qeb4 Qc4 Qa2 Q4b3 Qb1
2NR1q1N/1kPN4/6nb/QKB2n2/2N3p1/nnrRb1N1/q3RPRr/1B5b w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 d5 h4 Kd7 b4 Kc7 c4 g5 f6 a5 b6+ Kc6 c5 a4 h6 a3 f7 g4 b7 a2 h5 Qd6 h7 Ra4 b5+ Kc7 b6+ Kc6 h6 Rc4 Ne2 Nd7 b8R Ne7 b7 Ng6 Qe1 Qe7 Qa5 e4+ Kd2 d3 Ba3 d4 Rg1 Rc1 Ng3 Rc3 Rg2 Bg7 Ra8 Qf8 b8R Bb7 Ra7 Ba8 Rd8 Bb7 Bb4 Ba8 Na3 e3+ Ke1 d2+ Ke2 d1N Nc4 Bb7 Rc1 a1B Rc2 Ba8 Ra6+ Kb7 Rd6 Bb2 Ba3 Bc1 Ra2 Rc2+ Kd3 e2 Bb4 Be3 Rb2 Qg8 f8N e1Q Ba3+ Qb4 Rd5 Rc1 Re2 Qa4 Bb4 Qa2 Ba3 Nb6 Bb4 Na4 Nd7 Qf8 Rd6 Nac3 Ba3 Nb1 Rd5 Nd2 Bb4 Rg8 h8N Nb3 h7 Bgh6 Nf7 Rc2 h8N Rc3+ Ke4 d3 Nfd6+ Kc6 Ba3 d2 Nc8 Kb7 Rd3 Rg7 Kd5 Rh7 Bb4 Bef4 Ba3 Ne3+ Ke4 Nc2 Kd5 d1N Bb4 Bc7 Ba3 Bb6 c6+ Kc7 Bc5 Nde3+ Ke4 Nf5 Kd5 Bb7 Rg1 Ba6 Bg2 Bb7 Be4 Bg5 Rg2 Rh2 Rde3 Bh6 Rf3 Ne1 Bb1 Nc2 Rd3 Ba6 Nf6 Kb8 c7+ Kb7 Nd7 Bb5 Bd6 Bbe3 Be7 Nbd4 Kc5 Bc6 Bd6 Bd5 Be7 Nb3+ Kb5 Be4 Bc5 Bf3 Rg1 Bh1 Rg2 Na3+
qbqr1Q1n/1NP2BR1/2b3pN/nN3n1P/7q/Br3BRN/2K3nk/N6B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 Ke6 c4 Kf5 e4+ Kf4 h4 Kg3 b6 a5 b5 f5 c5 d5 b7 g6 c6 d3 c7 a4 b6 a3 h6 d4 e6 a2 h7 f4 e7 f3 e8B f2 e5 Qd5 e6 Qd6 e7 Ra5 Bc6 Qe6 e8B Qh3 Bfg2 f1Q Bgf3 Bc5 Ba3 Bd7 Bf7 Rb5 Nc3 Rb3 Nb5 Nh6 h5 Qg4 Nh3 Rd8 h8N Qh4 Rg1+ Kh2 Rg3 Qh1 Rb1 a1Q Qf1 Be8 Kd1 d2 Kc2 d1N Bce4 Nc6 b8N Na5 b7 Ba7 Na6 Qg4 b8N Qc8 Nb4 Bc6 Nd7 Bb8 Nc5 Qa2+ Rb2 Qa1 Nb7 d3+ Kd2 Qa2 Nc2 Ne3 Na1 Nef5 Kc1+ d2+ Kc2 d1N Bed5 Qg1 Bh1 Qd4 Bdf3 Nh4 Qf2+ Ng2 Qf1 Qf6 Qf2 Qh4 Qc5 Re3 Qf8 Qd5 Rb4 Rb3 Rd4 Qde4+ Rd3 Qa4 Rd7 Nde3+ Kd2 Nef5 Kc2 Qhb4 Be8 Qh4 Nf7 Qad4 Re7 Qa7 Rd7 Qa8 Re7 Ng4 Nh6 Ne5 Rh7 Nf7 Rg7 Nh8 Bf7 Rdd3 Na7 Rd5 Nb5 Rd8
Q2b4/rnPbrPNR/2R2B2/qB2r1nQ/1N1K3q/1Rp2R2/1R5b/R1rk4 w - - 0 1 illegal: No proof kernel
Qr1Bk3/1PB5/r4q1K/nbQn3N/2r2B2/R2qP1p1/R2bBB1N/2rB2b1 w - - 0 1 illegal: No possible last move, all moves rejected
1n1q3R/1Pn4K/1QBnbk1q/1B2pn2/N2Pr2q/r4NN1/N1N5/b2B1RB1 w - - 0 1 illegal: No possible last move, all moves rejected
3B1nK1/Bp1RBnr1/3q2RP/2Bb3k/1NrP1b2/7B/Q1r1N1qb/1b3BQ1 w - - 0 1 illegal: No proof kernel
2b2rq1/pnQ1B1B1/3nN3/1RRN1B2/1b2PP2/3q1KB1/2qrBQ1b/qBk5 w - - 0 1 illegal: No proof kernel
B2B2kb/q3P3/QB2n1r1/Nrr3Q1/4rN1B/2BRRKPb/2bp1nB1/3b4 w - - 0 1 illegal: No possible last move, all moves rejected
QR1rnbqR/nnP3bp/3n3B/2Pr2B1/3b2b1/2BkNB2/3B1K1N/5RR1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 f4 Kf7 c4 Kf6 b4 d5 g4 a5 c6 e5 b6 d4 b7 h3 c5 h2 b5 d3 g5+ Ke7 b6 e4 g6 Kf6 g7 e3 Nd2 e2 Bg2 a4 Bf3 a3 Kf2 a2 Nf1 d2 Ne3 Qd5 Rb1 a1B Qa4 Bd4 Bb2 Bd7 Rf1 Qf7 Bc3 d1N+ Kg3 Nb2 Kf2 Nc4 Qa2 Ne7 g8R Na6 b8R Nc8 b7 Nc7 Bd2 Na7 Qa1 Ke7 f6+ Ke6 f5+ Ke5 Bc3 Qe6 f7 Ne8 f6 Ncd6 Qa5 Qd5 Qa2 Bg4 Qa4 Bg7 f8B Qb3 Be7 Bf8 f7 e1B+ Ke2 Bd2 Kf2 Bc1 Bg5 Bb2 Rc8 Qd5 b8B Ba1 Bc7 Rb8 Bb6 Nb7 c7 Qc4 Bba5 Ra8 Be2 Ke4 Bf3+ Kd3 Rb8 Bdg7 Bd2 Bad4 Bac3 Qd5 Ne2 Qb3 Rhg1 Qd5 Ng3 h1N+ Kg2 Nf2 Qa3 Be7 f8B Ne4 Qa4 N4d6 Kf2 Bgf6 Bg7 Bf8 B7h6 B6g7 Qa6+ Nab5 Qc6 Ra1 Qa6 Rd1 Qa8 Na7 Re1 Qc4 Nf1 Qb3 Nh2 Bge5 Rg6 Qg8 Ref1 Bf6 Rg7 Bfe5 Rd7 Beg7 Rdd8 Qc4 Bf6 Be7 Kg3 Be5+ Kg2 Qb3 Nd5 Kc4 Bh4 Nf6 Bc1 Rd4 Bce1 Kd3 Ne3 Qf7 Bc3 Rd5 Kf2 Bd4 Rf8 Rg8 B4g5 Qe6 Rf7 Rd8 Rf8 Nfe8 Rh8 Qg8 B1d2 Bef8
1k3N2/2qr3p/1Bn1bPK1/bn3B1P/2R1bB2/NqbQRB2/1b6/N1B2nN1 w - - 0 1 illegal: Other
1BRRN2q/5B1p/4K1RP/q1n2PBk/1Rr2qb1/1R1rnNn1/rBr5/2Q5 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kb3 Kf7 Kc4 Kg6 h4 a5 b4 c5 e4 a4 d4 a3 h5+ Kh6 b6 g5 d6 g4 Kd5 c4 f5+ Qg5 b5 c3 e5 g3 e6 a2 b7 c2 d7 g2 d8R Bd7 b6 Ba4 e7 Bc6+ Ke6 Qd2 e8R Kg5 h6 Nf6 d5 Na6 b8B Nh5 d6 Ng3 Bc4 f1N d7 f2 b7 Bf3 Na3 Ne3 Nb5 f1Q Rh4 Qa5 Nd6 Bg4 Bb2 Qf4 Qc1 Ra7 Rb1 a1Q Rf8 Ra8 Rf6 Rf8 Rc8 Rd8 Ne8 Ra7 B8e5 Ra8 b8B Nc5+ Ke7 Ra7 Bf7 Ra6 Bec3 Ra7 Bd2 Ra8 Ne2 g1R Nd4 Rg2 Rh3 Qc3 Rb6 Ra2 Rb3 Re2 Rh2 Qa5 Rg2 Nb7 Ke6 Rf2 Qh1 c1R Qg1 Rc4 Qc1 Be2 Nf3+ Kg4 Ba3 Qh8 Rb4 Rac2 R1b3 Ra2 Bb2 Bd1 Bdc3 Rc2 Bf6 Be2 Bg5 Bd1 Rd2 Be2 Rd6 Nc5+ Ke7 Bd1 Rg6 Kh5 Nc7 Rg8 d8R Rf8 Ne8 Be2 Bg8 Rf6 Bf7 Rd6 Bc3 Rd3 Bb2 Na6 Ke6 Bd1 Ne1 Bg4 Nf3 Nc5+
b1RRB3/RRKRq1Q1/3rPq2/Bn1k3p/q7/2b1B1n1/1B3bNP/nN5n w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 a5 cxd5 b5 axb5 Ra6 Ra2 Rf6 Ra3 exf4 Ra1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 Kf7 b4 h5 d4 c5 e4 g5 d6 c4 e5 a4 f6 Ke6 d5+ Kf7 d7 c3 b6 a3 b5 c2 d6 Ke6 b7 g4 f7 a2 b6 Na6 b8B Bg7 f8R Nh6 b7 Qe7 d8R Nf5 d7 Nc7 Bb5 Rh6 Nh3 Ng3 Bb2 c1Q Qg1 Qc4 Ba7 Qa4 b8R Bb7 Be3 Ba8 Rb7 Kd5 Rg8 Ra6 e6 Rd6 Rc8 Bd4 d8B Bc3 Be8 Nb5 Qg2 Rc6 Ba5 Rd6 Rc1 Nh1+ Kg1 g3 Rd1+ Ke5 Kf1 f2 Ke2 f1N Kf3 Qa3 Qg1 g2 Rg7 Nfg3 Rd4 Rc6 Rdd8 Qa4 Rf7 Rd6 Rg7 Qg5 Rgd7 Qf6 Nf2 Qg7 Nd3+ Kd5 Ne1 Qh7 Qf2 g1B Ng2 Qe7 Qc2 Nf1 Qh7 Bf2 Qg7 Qb3 Ke2 f3+ Kd3 Qb4 Kc2 Qbh4 Kb3 Qhf6 Ka4 Nfg3 Bb4 Qf4 Ka5 Qd4 Rc6 Qd1 Kb6 Qa4 Ba5 Bg1 Bd4 f2 Bc5 f1Q Be3 Nd4 Kc7 Qff6 Ra6 Bf2 Raa7 Ne4 Nd2 Neg3 Rc1 a1N Nb1 Bd2 Kb8 Bb4 Rcc8 Bc3 Kc7 Nb5+
1bb1q3/1QBR2pr/NBRr4/3rNn1r/B3qbP1/1q6/1P1B2Bk/1K3Q1B w - - 0 1 illegal: No proof kernel
QBRN1K2/B1r1q1p1/rn1q4/1NrB2N1/P1N2k2/2q2n2/4R1P1/B1n1Bbn1 w - - 0 1 illegal: No possible last move, all moves rejected
1B5r/bB1N2b1/q7/BNn1K2B/1b1pb1n1/2bP2k1/P1R2b1R/R1R1nB1Q w - - 0 1 illegal: No proof kernel
1Rrr1bQR/4b1RR/Q2b3R/pn6/4N2B/1r1k2nP/PKb1N3/3r1rRB w - - 0 1 legal: proof: d4 h5 b4 e5 dxe5 c5 bxc5 Be7 f4 Bf6 g4 hxg4 e4 Qe7 e6 Kd8 f5 Kc7 e5 Qe8 Bh6 Qd8 Bc1 Be7 f6 Bf8 Ba3 Qe8 Bc1 Qe7 fxe7 Kc6 Kd2 Kd5 Kc3+ Ke4 e8R d5 c6 b5 h3 g5 e7 f5 e6 a5 c7 g3 Kb2 g4 c4 f4 c5 f3 c6 f2 Bh6 b4 Rd8 d4 e8R g2 e7 g3 Be2 f1R Kb3 d3 Kb2 b3 Rd7 d2 Bg5 Nf6 Bh4 Nh5 Bf3+ Ke3 Qc1 Na6 Qc4 d1R Ne2 g1B Nd2 g2 Qg8 Ng3 Ne4 Bh2 Rg1 Bb7 c8R Nc7 Red8 Nb5 e8R Ba6 Rcc7 Rc8 Rh7 Be7 Rf8 Bb7 Rde8 Kd3 Rc1 Rd8 Rf6 Bc8 Ra7 Bf5 c7 Bg6 c8Q Bf5 Rh1 g1B Qa6 Bgc5 Rfh6 Bf8 Rag7 Bce7 Rg1 Bg6 Kb1 b2 Bh1 Ke3 Kc2 b1R Qd5 Rb3 Qg8 Nf5 Rb1 Bhd6 Rb2 Ng3 Rb1 Ra3 Kb2 Rc8 Nc5 Bc2 Ne4 Kd3 Rd8 Rcc3 Rb8 Rc8 Rc1 Bb1 Rc5 Bc2 Rch5 Bb4 Qb3+ Rc3 Rf6 Bbd6 Qf7 Rg8 Rh8 Rc8 Rfg6 Rac3 Rgh7 Bg7 R5h6 Rgd8 Qg8 Bgf8 Rgg7 Rb3+
5r2/r2b1pbr/4Q1BB/2KNnnPb/1RNRrP2/N1R5/4N1k1/nRb4R w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 c6 e4 Ba6 h4 gxh4 d4 Qb6 d6 Kd7 e5 Ke6 d7 Qc7 d5+ Kf5 Ke2 Bc8 Ke1 Qd6 exd6 Kf6 Kd2 Kf5 Ke3 a5 Kd4 h5 d8N e5+ Kc5 Ke4 g4 a4 b4 a3 b6 a2 b5 h3 b7 h2 b6 h4 Na3 h3 Ne6 Bd7 Ne2 Kf3 Qe1 e4 Bh6 e3 g5 Ne7 Nc7 Ra7 Rc1 a1N Rc3 Nf5 Bg2+ Kg4 f4 Bg7 Be4 Rf8 Bd3 Kf3 Bc2 Kg2 Bd3 Ne7 Bg6 Nf5 Nc4 Be6 Nb5 Bc8 Nba3 Nd7+ Kb4 Ne5 b8R Be6 b7 c5+ Kb5 Bd7+ Kb6 Bb5 d7 Ba4 d8N Bd7 Ng3 e2 d6 Ng4 Ne6 Ne5 Qd1 e1R Nc7 Re4 Qe1 Ne7 Ne2 Nf5 Rf1 h1R Nd5 Bc6 d7 h2 d8R Bd7 Nb2 c4 Kc5 Rh8 Rc2 c3 Nbc4 Re8 Rc1 c2 Rf3 Ra6 Rc3 Rf8 Rb1 c1B Ra8 Bb5 b8R Bd7 R8b4 Ra7 Rab8 Rf1 R8b6 h1B Rd6 Rf3 Re8 Rh3 Ree6 Rb8 Re8 Rh2 Rh8 Rf8 Nde3+ Kf3 Ng3 Raa8 Rd4 Ra7 Nd5+ Re3 Rh7 Nc6 Rh8 Rd3 Qe6 Ne5 Ne2 Re3 Rh7 Kf2 Rh8 Re4 Rh7 Bf6 Bg7 Bf3 Rh5 Kg2 Rh3 Bg4 Rhf3 Rh5 Rh3 Rh7 Bh6 Bh5 Rh1 Bg7
2Q1R2N/q6N/pnN4b/1PkrRNR1/2NpBrn1/rPb1B3/2n3R1/3b3K w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 g5 h4 d5 f4 Kd7 Kf2 Kd6 Kg2 e5 c5+ Ke7 f6+ Ke6 b3 d3 c6 Kd6 h6 e4 f5 a6 f7 g4 f6 g3 h5 e3 h7 d2 h6 e2 c7 e1B Ne2 d4 Qc2 d1N Na3 Kd5 Rh2 Bd6 f8N Nc3 f7 Bf4 Be3 Nb1 Kh1 Nd7 Nc4 Bc3 Bg2+ Kc5 Be4 Qe7 Rg2 Na3 Re1 Ngf6 Ng6 Bg5 f8N Nb6 Nge5 Bg4 Nc6 Rd8 c8R Rd5 Re8 Qa7 Qc1 Rg8 h8N Nc2 h7 Bh6 Re5 Bf3 Rf1 Bh5 Rff5 Ng4 Rg5 Rg6 Ng1 Rd6 Nf3 Rf6 Nh4 Rf4 Nf5 Nf6 Nhg6 Bd1 h8R Ng4 Nh7 Bb4 Rhe8 Bc3 Re2 g2+ Kg1 Qe7 Nh8 Qa7 Rf2 Nf6 Kh2 g1R Re2 Rgf1 Reg2 R1f2 Kh1 Ng4 Qa3+ Nb4 Qa5 Ra2 Qa4 Nc2 Qa5 Nd7 Qd8 Ra3 Qc8 Nb6
2b2BQR/1Bq1RrBn/KNnrn1B1/2qPbR1b/8/1p5N/1Rp1P2k/6R1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h4 Kd7 a4 g5 d4 c5 Kd2 b5 Kd3 f5 e6+ Kd6 h6 f4 e7 g4 e8R g3 h7 b3 a5 f3 a6 f2 h5 b4 Kc4 g2 Kb5 c4 h6 c3 a7 b2 Rh5 b3 Nd2 b1N Nh3 g1Q Rf5 Nc6 Re7 Nf6 Bg2 f1B Be4 Rg8 h8B Rg7 h7 Rf7 Bg7 Bg2 h8R Qc7 Bc2 Qe3 Qg1 Bf3 Bb2 Nh7 Ba3+ Nb4 Ra2 Bh5 Rb2 Qg5 Bd3 c2 Be4 Qb7+ Ka5 Nc3 Rg8 Rb8 a8B Na4 Qg4 Qd7 Bb7 Nc5 Bd3 Ne6 Nc4+ Kc7 Be4 Nc6+ Ka6 Qe3 Nb6 Qc3 Rf1 Qc5 Bg6 Kd6 Rf5 Qc7 Bh8 Bh6 Bg7 Bf4 Rh8 Bd7 Qg1 Rd8 Bb4 Bc8 Rg8 Qd7 Qg4 Kc7 d6+ Kb8 Rh8 Qe5 Ree8 Bg3 Bf6 Qe7 d7 Kc7 Bc5 Rf8 Bf7 Qf4 d5 Qe3 Bcd4 Kd6 Qg8 Bh2 Bc3 Qc5 Bg5 Bf4 Bh6 Bg3 Rf1 Bf4 Rg1 Bg3 Bg6 Rf5 Bcd2 Ke5 Bf8 Ke4 Bg5 Be5 Bf6 Qed6 B6g7 Qc7 Re7 Ke3 Rf7 Rf4 Rf5 Rf3 Rfg5 Rf7 Rf5 Re8 Nf4 Kf2 d8R Ree7 Re8 Rd7 Re7 Rd6 Rh1 Kg3 Nh3 Kg2 Rg1+ Kh2
5n2/4Q1n1/Kn2br1k/P1R1pBR1/1NB1r1qB/B1r1bB2/pP2R2q/4NR2 w - - 0 1 illegal: No proof kernel
1RN2nq1/1B2rBQ1/5Bn1/pR3r2/P4kN1/1pKnb3/RrRqBP1b/1R6 w - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 Qf6 h3 Qd8 Kd2 g5 Ba3 g3 Bg2 g4 Bf3 b6 Ke1 Bb7 Bg2 Bf3 Bf1 g2 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 Kd2 Kf7 e4 Kg6 c4 Kg5 a4 h5 c6 d5 e6 a5 e7 h4 e8B b5 c7 d4 c8B d3 e5 b4 e6 h3 e7 b3 c5 h2 c6 Rh6 c7 Rh5 Ra2 Ra6 Be2 Bh6 Nf3+ Kf4 g5 g1Q g6 g2 g7 Qd7 Ne5 Ra8 Na3 Qd5 Nac4 Ra7 Bf7 Nd7 e8R Ne7 g8R Ng6 Bb2 Ndf8 Qa1 Rf5 Kc3 d2 Nd6 Qe1 Rg1 h1R Ng4 Qa8 Rf1 g1B Re5 Bh2 Bb7 Qb8 c8R d1N+ Kc4 Rg1 Rb5 Qd2 Bf6 Bg5 Rc7 Bh6 Nc8 Bg5 Bd3 Nb2+ Kd4 Bh6 Rb1 Re1 Rc2 Re2 Bc6 Rae7 Bb7 Qc1 Bdc4 Nd3 Kc3 Qe3 Bcd5 Rd2 Bf3 Qe1 Be2 Qd1 Rcc1 Rb2 Rc2 Qd2+ Kc4 Ne6 Na7 Qe8 Bg7 Kg5 Be5 Qf8 Bc3 Qg7 Rf8 Qg8 Rb8 Nef8 Nc8 Ne1 Ra3 Nd3 Bg7 Ra2 Qc3 Rb2 Ra2 Kh5 Qf6 Be3 Qd4 Qd1 Kc3 Kg5 Qf6+ Kf4 Bh8 Nge5 Qg6 Qc1 Bf6 Qd1 Qh7 Neg6 Qg7 Qd2+
Nq4nN/B1b4Q/bb1r2p1/1N2B1R1/B1p2P1r/3N1KP1/k2NBqn1/r4R2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 f5 cxd5 fxe4 a4 g6 axb5 Ba6 h5 Bc8 h6 Qd6 Qf3 Qe5 Qd1 Qg7 hxg7 Bb7 Qa4 Ba6 Qd1 Bc8 Ke2 Kd7 f4 Kd6 b4 h5 d4 e5 g3 a5 b6 c5 b7 a4 b5 a3 b6 a2 Nf3 h4 Nfd2 e3 Bb2 h3 Kf3 h2 Nc3 e2 Nb5+ Ke7 d6+ Ke6 d7 Kd5 d8N e1Q Nc6 Nd7 b8N Ndf6 b7 Ra6 Nd7 Ng4 b8B Ne3 Be2 Bd6 Rf1 Ng2 Ba7 h1Q Qa4 Bc7 Nb4+ Ke6 Rb1 a1R Nd3 Rd6 Nb6 Rh4 Na8 Kd5 Rc1 Ba6 Qa5 Bd8 Qc7 Qg1 Rc4 Qb1 Ra4 Qh2 Ra5 Qg1 Qd7 Bc7 Qh3 Rh8 Qh7 e4+ Kg4 e3 Kf3 Nh6 Bc3 c4 g8B+ Kc6 Be6 Ng8 Bd7+ Kd5 Bd1 e2 Bg4 e1B Ba4 Bf2 Bb2 Kc6 d5+ Kb7 Be5 Bb6 Qg7 Rh4 Qh7 Rd7 d6 Kc6 Bh5 Rd8 d7 Kd5 Nb2 Kc5 Bg4 Kb4 Bh5 Re8 d8N Re6 Nf7 Rd6 Nh8 Qh2 Nd4 Ka3 Nb5+ Ka2 Nd3 Qb4 Ke4 Ne1 Be2 Ng2 Kf3 Qb2 Qh5 Qg1 Qh7 Qf2+ Ke4 Qc2 Nd4 Nh6 Bf6 Qb3 Rg5 Ba5 Be5 Qb8 Nb5 Ng8 Bc5 Qg1 Ba7 Bab6 Kf3 Qf2+
r2n2N1/1k6/N4RpN/p1bKqP2/6bB/r3QR2/1PB2n1q/1BNb1BqB w - - 0 1 illegal: No proof kernel
2nr3R/4rqB1/K2Bn1pp/1B1k2b1/1Qb1r3/2P2P1Q/NBB1R1qB/1q3N2 w - - 0 1 illegal: No proof kernel
b5B1/2qr1KRb/B1RbP1N1/1P1r1pQN/1B2k2N/1n1q3n/4n1p1/2N3BB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 a5 e4+ Kc5 b4+ Kb6 h4 g5 c4 d5+ e6 a4 e5 a3 c5+ Kc7 b6+ Kc6 b7 a2 h6 g4 b5+ Kc7 h7 d3 h5 f6 Kg6 f5 c6 d4 e7 g3 e8B d2 e6 Kd6 h6 Kd5 c7 d3 Bf7 Na6 b8N Nb4 Nf3 Qe7 Ba3 Bb7 c8B Nc6 Qc1 d1Q Rg1 d2 Nd7 Ke4 Nh4 Nf6 Bb4 Nh5 Bg8 Nd4 Bg2+ Qf3 Bh1 d1B Qd2 Ne2 Qg5 Ra7 Rg2 Bc6 Ba6 Ba8 Rg1 Qd6 Kf7 Nhf4 Rg2 Be7 Nc3+ Kd3 Rc1 a1N Na2 Nb3 Rc7 Nh3 Rc6 Qc7 Nc1+ Ke4 Rg1 Rb7 Rg2 Qd3 Nf6+ Ke5 Nh5 Ke4 Rf2+ g2 Rf3 Qd4 Rg3 Qdd6 Qf6 Qd3 Rg7 Qf4 Qg6 Rd7 Qg5 Qc7 Nf4 Ned4 Kg6 Bg4 Bf7 Rhd8 Bg8 Ne2 Kf7 Na5 h8N Nb3 h7 Rd6 N8g6 Rd5 Ne5 Nhg1 h8B Nh3 Rg6 R8d6 Bf6 Rd7 Rg7 Bf8+ Bfe7 Bf3 Bc5 Bg4 Bg1 Bh5+ Kf6 Bf7 Nh5 Bg6 Bb4 Bh7 Neg6 Be7+ Kf7 Bd6+
bN1Nq3/5qb1/1nnP4/K1pRN1Q1/nr1N3B/2P2RR1/1B1N1rpk/3R1r2 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Bc8 g4 h5 Be2 Nc6 fxg5 Qd7 g6 Nb8 g5 Qd8 Bg4 hxg4 b4 Kd7 d4 Kd6 Kd2 a5 Kc3 f5 h4 e5 g7 g3 b6 f4 b7 a4 g6 c6 b5 e4 Kb4 f3 b6 e3 h5 f2 h6 f1N h7 e2 c3 e1Q Ne2 a3 Nd2 g2 Bb2 a2 Rh5 Ra6 Qc1 Nd7 b8B+ Qc7 b7 Ne7 g8R Nb6 g7 Na4 Rb1 Rb6+ Ka5 a1R Rf5 c5 Rf3 Kd7 d6 Ke6 d7 Ne3 d5+ Ke5 d8N Ra2 d6 N3d5 Nd4 Bg4 Ba7 Rb4+ Bb6 Be6 b8N Nc6+ Ka6 Qf7 Bc7 Na7 Ka5 Ndb6 Ra1 Bd5 Rb1 Be7 Rf8 Bc6 g8R Bf6 Rgg3 Ba8 Ra1 Rg8 h8N Bg7 Rd3 Kf4 Rb1 Qf5 Nhf7 Qe8 Ne5 Qf6 Qd1 Ra1 Qh5 Qff7 Rd1 Rc1 Nc2 Rh8 Rd5 Rh6 Nd4 Rf6 Nd8c6 Rf5 Bd8 Rc2 Bh4 Rf6 N2f3 Rf2 Nd8 Nc6+ Ka6 Ke3 Nd2+ R6f3 Qg4 Rf1 Qg5+ Kf2 Nf5 Kg1 Nd4 Rc4 Kb5 Rf2 Ka6 Kh2 Kb5 Qfe6 Rff3 Q6e7 Ka6 Q7f7 Kb5 Rb4+ Ka6 Ne7 Ka5 Nc6+
R4RnR/1N2b1PB/1p1Q4/n1N1rR1B/7B/bPq3n1/1B1p1Kqr/1k1b3R w - - 0 1 illegal: No possible last move, all moves rejected
2N5/1rb1pNpq/2n2Nr1/2Rn4/1N2K1BQ/Q2NPbR1/b1BP3n/kq1N4 w - - 0 1 illegal: No proof kernel forced: wxDB
2Q5/3pRP2/NpBr2Br/3r2k1/b1K1P3/nB3n2/bR2QB2/1qbNBBq1 w - - 0 1 illegal: No proof kernel
2BbrQ1R/2P4N/BK2nB2/RR5r/5qbq/B2B3P/3ppknb/RN3r2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Nd2 Kf7 Ke2 Kf6 Ke3 Ke5 c4 b5 f4+ Kf6 Kd4 d5 a4 g5 h3 g4 Ra2 b3 a5 b4 h6 g3 h7 g2 c6 b2 Kc5 b1Q a6 d4 a7 b3 Ngf3 g1B Bb2 Bd7 Ra5 Bh2 Ng5 Qc1 Qf3 e5+ Kb5 d3 c5 Qe7 Kb6 Nh6 c7 Nc6 Be2 Rc8 a8B Ng4 Bb7 Ne3 Ba6 Re8 c8B Nd8 c6 Ng2 c7 Bh6 Bd4 b2 Rd1 Qc4 Rda1 b1R+ Bb2 Rg1 Nb1 d2 Bd3 Rf1 Ba3 e4 Qf2 Rhg8 h8R e3 Qf3 e2 Nh7+ Kf7 f6 Ke6 f7 Rg5 f8B Rh5 Bb2 Qh4 Bfa3 Bg5 Qf2 Qe4 Be5 Kf5 Bd4+ Kg6 f5+ Kh6 f6 Bg4 f7 Ne6 f8R Bd8 Rff5 Qf3 Rfd5 Qf5 Nf6+ Kg5 Rdb5 Qe5 Bdb2 Qf5 Qc5 Kf4 Qf8 Ke3 Nh7 Qf4 Bf6 Kf2
3rkr1n/RPQNNn1n/2B5/1N3R2/1b2p1q1/r1Np3R/1K1P1qRN/2B3b1 w - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 d6 exf5 Ba6 a5 Bc8 a6 Bb7 axb7 Kf7 cxb5 Qd7 b6 Ke8 b5 Qd8 f4 e5 g4 h5 f6 a5 f5 c5 g5 c4 g6 c3 g7 a4 Qb3 d5 Kd1 c2+ Ke1 a3 Qb2 a2 Ke2 h3 Kd3 h2 Kc3 e4 Nf3 Nh6 g8N h4 Ne7 Nd7 b8R h3 b7 Nf7 b6 d4+ Kb3 Qc8 Nc3 Ra6 Bb5 d3 Bc6 Ra5 Qb1 Ra3+ Kb2 Rg8 Rg1 h1R Rg2 Rf1 Nh2 Rf3 Ra8 Nh8 b8N Rf4 Ned5 Bb4 b7 Rf1 Ne7 Rf4 Nf1 h2 Na6 h1N Nh2 Ng3 Ra7 Nh5 f7+ Kd8 f8N Ne5 f6 Nef7 Rg6 Qg4 Nd7 Ke8 Rg5 Rf5 Rg7 Rd5 Rg6 Rf8 Nc7+ Kd8 N7b5 Ke8 Nc8 Ng7 Ne7 Ne6 Rh6 Neg5 Rh3 Ra5 Kb3 Nh7 Qb2 Ra4 Qa3 Ra6 Qa5 Rd4 Rb1 a1B Qc7 Bb2 Ra1 B2a3 Rb1 Bc5 Ra1 Bab4 Kb2 Ra3 Nb8+ Rd7 Nb1 Qf5 N1c3 Qf1 Rb1 Rg8 Ra1 Ne5 f7+ Kf8 Rb1 Rd8 Nd7+ Kg7 f8R Bb6 Rf6 Rgf8 Rg6+ Kf7 Rg2 Ke8 Ra1 Nef7 Ra2 Ra6 Ra5 Bg1 Na3 Qf2 Rf5 Ra5 Nab5 Ra6 Kb3 Ra5 Ba3 c1Q Bb2 Ra6 Ba3 Qd1+ Ka2 Qg4 Ka1 Ba5 Bc1 Bb4+ Kb2 Ra3
1KNb3k/1p5p/n1R5/Pn1R1q2/rrR3b1/2q2NBr/N2bNP2/2RBQ2R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 Kg7 Ke4 e5 g4 c5 d4 b3 a4 b2 d6 c4 Kd5 e4 f6+ Kf7 a5 e3 g6+ Ke8 f7+ Kd7 g7 e2 g5 e1Q g6 c3 Ne2 c2 Bf4 c1B Nbc3 b1R Na2 Bd2 Bg3 Rb3 Rc1 Nh6 g8N Re3 g7 Rd3 Ne7 Nc6 g8R Rb8 Rg6 Nb4+ Kc5 Ra3 d5 Ra4 Bh3+ Nf5 Bg4 Bfh6 f8N+ Ke8 d7+ Kf7 d6 Bhg5 Ne6 Re8 N6d4 Na6+ Kb5 Rg8 Nf3 Qf8 Kb6 Nd4 d8R Nb5 d7 Ra8 Re6 Kg7 Rec6 Kh8 Re8 Qf5 d8R Be6 Rd5 Rd8 Nc8 Bd7 Ree6 Rg6 R6c5 Rh6 R5c4 Rh3 Rec6 Re8 Bh5 Re3 Bg4 Rb3 Bh5 Rbb4 Bg4 Nd4+ Ka7 Nb5+ Ka8 Bd8 Bh5 Be3 Bg4 Qc3 Qe1 Bd2 Bh5 Nc5 Kb8 Qb1 Rd1 Bg4 Rc1 Qe4 Bg6 Qe6 Bc2 Qf5 Bd1 Na6+
1K2B1r1/p2bn2B/NBRRb1q1/1r1np1Q1/P4nq1/2R1r1N1/kBR1P3/5B2 w - - 0 1 legal: proof: g4 g5 c4 d5 cxd5 c5 h4 f5 b4 Bh6 bxc5 fxg4 Bg2 g3 Bh3 g4 Bf1 Bg5 hxg5 Qd6 Nc3 Qb6 Nb1 Qd8 f4 Kf7 d4 e5 Kd2 h5 Ke3 b5 Ke4 h4 a4 b4 c6 h3 c7 g2 d6 Ke6 d5+ Kf7 g6+ Kf6 g7 b3 d7 h2 d6 Ke6 f5+ Kf6 Kd5 b2 Nh3 g1Q Qd2 g3 Qg5+ Kf7 f6 g2 Na3 b1N Ra2 Nd2 Nb5 Qe7 d8R Nc4 d7 Nb2 Nf2 Nd3 Rc2 Qe8 Kd6 Nc6 Ne4 Rb8 Bb2 Nce7 Ng3 Nd5 Rc3 Nge7 g8B+ Kf8 f7 N3f4 Rc2 Rh3 Bh7 Qd4 Rc6 g1R Rc3 Rg2 Rg1 h1B Rc2 Bb7 c8B Bc6 Nc7 Rb5 Na6 Qe4 Bb7 Qf5 Rc8 Qg4 d8B Bd7 Bb6 Be6 R8c3 Bd7 Nh5 Re3 Bc6 Rgg3 Rg2 Be6 Rh2 Bg2 Rh4 Bh3 Bd7 Rg2 Ng3 Rg1 Rh6 Rg2 Qf5 Kg7 f8R Qeg6 Qh5 Rg1 Rd8 Kf7 Be8+ Kf6 Nh1 Bd7 Qh4+ Kf5+ Qf6+ Ke4 Rdc8 Rg2 R8c5 Kd4 Ng3 Q6h5 Qh4 Qgg6+ Qf6 Bhe6 Qg5 Qg4 Ra3+ Nc3 Kc7 Rg1 Rd5+ Kc4 Kb8 Rg2 Rd6 Rg1 Ra1 Kb3 Rac1 Ncd5 Rc3+ Ka2 R1c2 Q6h5 Rf6 Qg6 Rdc6 Bf5 Rfd6 Bfe6 Kb7 Rg2 Kb8 Qf7 Qg6 Qf3 Ne4 Rg4 Qf6 Rg8 Qg5 Qg6 Ng3 Qg4
1b4N1/pb1B1r2/3n2B1/1P1p2N1/q1k1NQ1n/B1b1P1Rr/2q2NB1/3N1KRr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 h4 Ke7 c4 Ke6 b4 d5 b6 g5 h6 f5 e3 d3 c5 g4 c6 f4 h7 f3 b7 g3 h5 g2 b5 Qg5 h6 Be7 c7 Nf6 Nc3 Qg4 Nh3 g1B Qa4 Qc4 Nd1 Na6 b8N Nb4 Ba3 Qc1 Bg2 f2+ Kf1 d2 Nc6 Bh2 Rg1 Nc2 Qf4 Bb4 Ne7 Ne8 Ng8 Bb7 Rb1 Rd8 c8B+ Rd7 Rb2 Nd4 Rb1 Nf5 Ra1 Kf7 e6+ Kg6 e7 Ned6 e8B+ Rf7 Bcd7 Bc3 Rb1 Bg3 Rb4 Nh4 Re4 Qb1 Re6+ Kh5 Rg6 Bh2 Rg3 Qc2 Bg4+ Kg6 Bed7 Rf6 Bgf5+ Kf7 Bg6+ Kf8 Ke2 f1R Nhf2 Qa4 Ne4 Rf3 Nef2 Rf7 Kf1 Qc2 Nf6 Ke7 Ne4 Rc8 h8N Rc4 Rg4 Rh3 h7 Rb4 Rg3 Rb1 Qh6 Kd8 Qf4 Kc7 Nf6 Kb6 Ng8 Rg7 Nf7 Qa4 Ne5 Rf7 h8N Qc2 Neg4 Rc1 Bb2 Kc5 Ne4+ Kc4 Ngf2 Re7 Nf7 Ra1 Nfg5 Rf7 Nd3 Qa4 Bc1 Qc2 N1f2 d1Q+ Ne1 Qh5 Ned3 Nf3 Nb2+ Kb3 Qh4 Nf5 Rh1 Qb1 Rg4 Bb8 Rg3 Nd6 Qf4 Nh4 Kg1 Qe2 Nbd1 Qc4 Ba3 Be1 Nb2 Qa4 Kf1 Bd2+ Ke2 Qc2 Rc1 Rb1 Rh1 Rg1 Nbd1 Kc4 Bf1 Rg2 Rg1 Rgh2 Bg2 Rh1 Kf1 Bc3
N3rQ2/pPRq1bBn/3N2R1/BR3N2/n6N/bp1q1KR1/qP6/kr4bN w - - 0 1 illegal: No proof kernel
R1N2bB1/1R2PKpR/PB1r1r2/RQ5N/1r1Rb3/4Q2q/R1nrpnk1/3r4 w - - 0 1 illegal: No proof kernel
2n1b3/Pk5B/1pN1R3/R2RR1b1/PN1pB1BB/2bb2Qn/rR3q2/1r1K3b w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 d4 cxd4 h4 Qc7 hxg5 Qd8 f4 d5 c4 Kd7 g4 Kc7 f6 h5 a6 e5 f5 d3 g6 h4 g5 d4 f7 e4 a7 h3 c5 h2 c6 b6 g7 e3 f6 e2 g6 Rh3 Qb3 Bb7 Na3 Bc5 f8R Rh4 f7 Rh6 Bg5 Qd7 Bg2 Qe6 Bh4 Nd7 Be4 Ndf6 Nf3 Re8 Nc2 Ba3 Ne5 Nh7 Nb4 Ne7 g8B Ba6 g7 Ng5 Bgh7 Bc1 g8R Nh3 Rg6 Qf5 Re6 Nc8 a4 Rg6 Ra2 Rg2 Rb2 Bc4 Rf1 h1B Rf2 Re7 Rd8 Rh2 f8R Rg7 Rf1 Rg1 Rfe8 Qf3 Rh6 Bf7 Ree6 Be8 Rh5 Nd6 Beg6 Bh6 Rc2 Qf7 Rd7+ Kc8 c7 Kb7 Qa3 Nc8 Nec6 Rhg2 Rg5 Qf5 Kd2 e1B+ Kc1 Qf8 Be4 Rf2 Rc5 Ra2 Ra5 Qf2 Rdd5 d2+ Kb1 d1B Kc1 Qh2 Qg3 Be2 Rf2 Bd3 Rd2 Qf2 Rb2 Be2 Kc2 Bc3 Rge5 Rga1 Bg8 Bc1 Bgh7 Bd3+ Kd1 Rb1 Rg6 Nd6 c8B+ Ka8 Bcf5 Kb7 Bg4 Nc8 Rge6 Bg5+
6Kr/k3NBn1/1r2b1q1/1rNBR3/2P1n1RB/2BQp3/1pNnP2r/3bN2B w - - 0 1 legal: proof: g4 a5 d4 g5 b4 c5 dxc5 axb4 h4 f5 gxf5 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qb6 Qd3 Qa5 Qd1 Qd8 Kd2 e5 Ke3 d5 c4 Kd7 f4 Kc6 a4 b5 a5 Kb7 a6+ Ka7 c6 h5 f6 g3 f7 h4 f8B b3 c7 h3 f5 g2 f6 b2 f7 d4+ Ke4 h2 g6 b4 g7 b3 Bb4 d3 f8N d2 Bc3 Bb7+ Kf5 e4 Kg6 Rh5 Kf7 Ra5 Ne6 Bc6 Nc5 Rb5 Ra5 Qd3 Na3 b1R Nf3 g1N Ne1 Nf6 g8B Nh5 Nac2 Bd7 Bg2 Nf3 Rg1 Ng7 Bh1 Be6+ Kf8 Rb6 Bf7 e3 Ba3 Qe4 Rg4 Qg6 Kg8 Rb2 Qb1 d1B Rb5 Nd7+ c8N+ Kb8 Ne7 Nd2 Bd5 h1R Bab4 Rh6 Bf6 Rh3 Bh4 Rh2 Bc3 Nf6+ Kf8 Nfe4 Kg8 Ra7 Ra5 Rab7 a7+ Ka8 Na3 Rb5 Qd3 Rb1 Nac2 b2 Nc6 R7b6 Ne7+ Rc6 Na6 Kb7 a8B+ Ka7 Bb7 Rcb6 Ba8 Ng3 Bh1 Nge4 Bc6 Rh5 Re5 Ra1 Bd5 Ra5 Nc5 Rab5 Nb7 Rh6 Nc5 Rh8+
1n5R/n1b3K1/QbR1nrRN/1PR1r2B/p1Q2RnB/3b3p/RP1q4/3k3N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 h5 d4 c5 g4 a5 d6 h3 d5 a4 f6 e6 f5 c4 g5 h4 g6 c3 d7 h2 f7 c2 f6 Kb3 g7 h3 d6 Bb7 Qe2 Bg2 Ra2 Qa5 d8R Nh6 g8R Bf3 d7 Be4 Na3 Ra6 Nc4 Bc5 f8Q Bb6 f7 Bd3 Kf6 e5 Rg6 e4 Ne5 e3 Kg7 Ng8 Qd6 Qd2 f8R Ne7 Ng4 Nc8 Nh6 Na7 Rf4 Re8 Rc8 Re5 d8R Bc7 Qg4 e2 Rh8 e1N Ne2 Nf3 Ng3 Nd4 Be2 Rc6 Rg1 h1N Bf3 Nf2 Nh1 Ra6 Rg5 Bb6 Rc6 Bc7 Qc8 Ng4 Rg6 Rb6 Rc5 Rc6 Qa6 Bb6 Qc7 Rf6 Re1 Qh2 Be3 Qd2 Bf2 c1B Bh4 Ne6+ Kg8 Nh2 Bh5 Ng4 Ref1 Qe1 Rfc4 Bf4 Rf3 Bh2 Rff4 Qc3 Rc6 Kc2 R4c5 Kd1 Kh7 Qd2 Qcc8 Bg1 Qg8 Bc7 Qf7 Nd8 Qc4 Bd4 Kg7 Be3 Rd5 Beb6 Rdc5 Ne6+
q3B3/n4R2/1R2PR2/1nR1Np1r/K3BBb1/1b2B1P1/k1rB2pr/N1b2r1Q w - - 0 1 illegal: No proof kernel
Q1R1nBr1/Q3rR2/B1p4b/BBnN3B/2Pk1P1K/3n1p2/q6b/n4BNr w - - 0 1 illegal: No proof kernel
BB2nb2/rN2n3/kPrrP3/1R4p1/1qR2RQB/K5B1/b4pB1/3r1RNb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 f5 e4 d5 b4 Kd7 h4 Kc7 c4 Kb7 Kc2 a5 Kb2 a4 h6 f4 e6 f3 h5 g6 c5 f2 e5 d3 h7 d4 e7 d2 e8B d3 e6 Qd5 h6 Nf6 c6+ Kb6 c7 Ka7 b6+ Ka6 b5+ Ka5 b7 Bg7 b6 Ng8+ Nc3 Qc4 Rh5+ Ka6 Qg4 d1R Bg5 d2 Bh4 Nf6 Ka3 Nc6 b8B Ne7 Nb5 Bf8 Bg2 Ra7 Nd6 Bb7 Rb5 g5 Bec6 Ne8 c8R Ba8 Nb7 Qb4+ Ka2 Rg8 h8R a3 h7 Rc1 Bcd5 Rc6 Rf1 d1B Rc7 Rd6 Rc4 Rg7 Rg8 Rf7 h8B Bb3+ Kb1 a2+ Kb2 a1R Be5 Rc6 Beg3 Rd1 Rg7 Rf4 Rf7 Rfd4 Rf4 R4d3 Bde4 Rdd6 Bd5 Qe1 Bdf3 Ba2 Ka3 Rb1 Bh3 Rc7 Nd8 Rbd1 Bh1 Be4 Bf3 Bh7 Ba8 Rcc6 Nb7 Be4 Nd8 Bh1 Nb7 Qd2 Bg2 Qb4+
2KnknQ1/2r3Q1/1p3Prr/1P2b1r1/p3Q1nQ/bBQ3B1/Q4N2/1q1R2NR w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Be6 a5 Bc8 a6 Bb7 axb7 Qd6 Qc2 Qd7 Qd1 Qd8 Ke2 e5 Ke3 c5 Ke4 h5 d4 a5 b4 a4 f4 h3 g4 h4 d6 h2 Kd5 c4 Ke6 h3 b5 c3 d5 c2 g5 e4 f6 e3 f5 e2 g6 e1N g7 Na6 b8Q Nh6 g8Q Nd3 Qc8 Ne5 Qe1 Nhf7 Qcc3 Nd7 Nd2 Rh5 Bc4 Rb8 Qe4 Nde5 Bb3 Rc8 Ba3 Rc5 Rd1 c1B Qgg2 Bg7 d7+ Kf8 d6 Rc7 Bc5 Ba3 Bf2 Rg5 Bg3 Nb8 Qge2 Ng4 Qf2 Nh8 f7 Nc6 Qfg2 Qa8 Qge2 Be5 d8Q+ Kg7 d7 Ng6 Qf6+ Kf8 Q2g2 Qa5 Qge2 Qb4 Q2c4 Rh5 Qh4 Rg5 Qce2 Qd4 Qf2 Qd3 Qfe2 Qb1 d8Q+ Kg7 Qf6+ Kf8 Q2g2 Rc8 Kd7 Nd8 Qe6 Rc6 Q6c4 Re6 Kc8 Re7 Qge2 Rc7+ Kb8 Ke7 f8Q+ Kd7 Qf6 Ke8 Qg7 Nf8 f6 Rg6 Q4e3 Rg5 Ne4 Rg6 Qa2 Rg5 Ne2 Rg6 Nf2 Rg5 Rhe1 h1R Qee4 h2 Qcg8 Rg1 Rf1 h1R Rfe1 Rh2 Rf1 Rgg2 Rh1 Rg6 Ng1 Rh3 Qg5 Rhh6 Qh4 Ne3 Bf4 R2g5 Bg3 Rb7+ Kc8 Ng4 Be6 Re7 Bb3 Rc7+
2r3QB/2r1nBbN/p1brN2n/2n1N2p/k3B2B/B1PR3N/5rKP/3Rq3 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 e4 h5 f4 g5 Kf2 d5 c6 d4 e6 a6 b6 d3 f5 d2 e7 Bg7 e5 Rh7 b7 Qc7 f6 Bd7 c3 Bh8 Bd3 Rh6 Qb3 d1R Be4 Be6 Ba3 Rh7 Nh3 Bd7 Nd2 Nh6 Nc4 g3+ Kf3 Qd8 c7 g2 c8B Nc6 b8B g1R Ra2 Rf7 Rd2 Rg2 Ba7 Rg7 Bd4 Rf2+ Kg3 g4 Rg1 Bf5 Be6 Rc8 Bg8 Kd7 e8N Be6 f7 Bd5 f8B Qg5 Nc7 Qe3+ Bf3 Qe4 Bfe7 Qb1 Bh4 Re7 Kf4 g3 Qa2 g2 Kg3 Qc1 Be4 Qa1 Re1 g1N Rf1 Nf3 e6+ Kd8 Bdf6 Nfd4 Ne5 Nb3 Bg7 Nc5 Qb3 Rf5 Kg2 Qb1 Rd4 Rd3 Rf3 Qe1 Rg3 Rf6 Qa2 Rdf3 Rd1 R3f4 Rgd3 Rf2+ Kg3 Ref7 Qc4 Ke7 Qb3 Kd6 e7 Re6 Bgf6 Bg7 Qa2 Bf8 Bh8 Bg7 Qc4 Ref6 e8N+ Ke7 Ng5 Rd6 Nf6 Kd8 Kh3 Rfd7 Be6 Ne7 Nfh7 Bc6 Kg3 Nd5 Nh3+ Ne7 Nb5 Ra7 Nd4 Kc7 B6d5 Kb6 Bg8 Rff8+ Kg2 Ka5 Qf7 Rb7 Ne6 Rbc7 Qe8 Rf6 Bf7 Ka4 Qg8 Rf2+
1RNb1N1k/r1N1N1pP/8/3Kr1P1/3b1BB1/b3r2R/1pRRNn1n/rq1Q4 w - - 0 1 illegal: No proof kernel
R3bQr1/b1Np4/3n2Rb/P3n2n/1q2K3/2RPB3/kN4pN/BN1rnRN1 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c6 b4 Ra7 bxa5 Ra8 Bb5 cxb5 Ke2 Kf7 Ke3 e5 h4 g5 a4 b6 f4 e4 c4 g4 f6 Ke6 d3 b4 f5+ Ke5 h6 b3 h5 b5 h7 g3 h6 b2 c5 g2 f7 b4 a6 b3 f6 Qa5 a7 Qb4 a5 Nc6 Qf1 Ba6 Ra3 Bc4 Rh4 Kd5 Rg4 Ne5 c6 Kc5 c7 Rc8 Kf4 e3 a8N e2 Rg6 e1B Ke4 Bf2 Be3+ Kb5 Nb6 Bg7 f8N Bf7+ Nc4 Be8 f7 Nf6+ Kf5 Rb8 c8R Rg8 h8N Nh5 h7 Bh6 Ne6 Rb6 f8R Rb7 Nbd2 b1N Nf7 b2 Rc3 Ka4 h8B Na3 Nc7 b1N Ke4 Nc2 Ra8 Nba3 Nb1 Ne1 Ng5 Rb5 N5f3 Rb8 Rc2 Kb3 Rc3+ Ka2 Nh2 Rb6 Kd5 Rb8 Nb2 Nac4 Ke4 Rb5 Bg5 Ba7 Be3 Rb6 Qf6 Rb5 Qd8 Rb6 Rf1 Rf6 Bg7 Rf2 Qf6 Rd2 Qf8 Rd1 Rb3 Na3+ Nc4 Ng4 Ba1 Ne5 Rc3 Ng3+ Kd5 Nh5 Nb2 Nac4 Ke4 Nd6+
NRn1R1n1/2Pr2Qb/k4NBb/P3Kpq1/1B1B4/p1B1B1R1/b1R5/rn4n1 w - - 0 1 illegal: No proof kernel
r1Q4n/1NP4R/N4p2/r1bk1N2/6Bp/1b1Bb1B1/bn2B1PR/3nNKqN w - - 0 1 illegal: No possible last move, all moves rejected
1B1QRR2/b1pP2R1/1n1NqPR1/1KB1Nb1k/3rB1r1/B6p/1B1r1n2/b1b5 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 e5 Kc4 h5 g4 a5 d4 h3 f4 h2 b4 h4 d6 h3 f6 Kg6 g5 a4 d5 e4 f5+ Kh7 b6 a3 f7 e3 f6 Kg6 b5 e2 d7 e1B d6 a2 b7 Nh6 b6 Ng4 Kb5 Qe8 Nc3 Be7 f8R Rh6 Nf3 Bd2 Ne5+ Kh5 g6 Ra3 g7 Bd8 g8R Rh8 Rg7 Be3 Ne4 Rg8 Bd3 Ra7 Rg1 h1R Bb2 Be7 Rc1 Na6 b8B a1B b7 Nb4 Rg6 Ra3 Ba7 Nd5 b8B Rh2 Bc5 Rd2 Rg3 Qf7 d8B Qe6 Rc4 Rc3 Ra4 Bh6 Ra8 Rc4 Re8 Bef8 Be7 Nb6 Rg7 Rd4 Rg2 Re2 Rg1 Nf2 R1g6 Bc1 Bc2 Rc4 Qd5 Rd2 d7 Rcd4 Nd6 Bb7 Qa2 Bf3 Be4 Bg4 Qa6 Bf5 Qc8 Nd3 Qd8 Nf2 Rf7 Bh6 Rff8 Be3 Ra3 Bg5 Rg3 Be3 Bca3 Rh8 R3g4 Rh6 Rg7 Rg6 Rg3 Rg4 Bc5 Rf4 R3g6 Rg4 Bca3 Nc8 Ndf7 Rc4 Beb4 Ba7 Bc5 Nb6 Nd6 Rcd4
nB4b1/bP2Qbr1/R4QQP/2N3KB/bn1pQ1n1/1QQ1Rq2/p1Nr2k1/8 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 c4+ Ke4 h4 a5 b4 g5 h6 d5+ e6 d3 h7 d4 h5 f6 c5 d2 c6 a4 b6 a3 c7 Ba6 c8Q Qc7 h6 Qc6 b7 Ne7 b5 Rg8 h8Q Rg7 b6 Bc4 Rh3 Na6 b8Q Nc7 b7 Ned5 e7 Nb4 Qb3 d1B Nf3 Bg8 Ne1 f5+ Kh5 g4 e8Q+ Be7 Nd3 g3 Bf4 g2 Qg6 Bc5 Kg5 g1N e3 Ra5 Be2 Ba7 Bh5 Na8 Qd6 Rc5 Qdf8 Rc2 Bb8 Rd2 Qh7 Qd5 Qcc3 Qc6 Qf6 a2 Na3 Bc2 Re1 Qd5 Rg3 Qf7 Rg4+ Kf3 e4 f4 e5 Qf8 e6 Nh3+ Kh4 Nf2 e7 Bf7 e8Q Bg8 Rg2+ Ng4 Kg5 Bf7 Rge2 Kg3 Re7 Kg2 R1e3 f3 Nc5 f2 R7e6 f1B Qee7 Bc4 Ra6 Bd1 Nc2 Bg8 Qc6+ Qf3 Qce4 Bcf7 Qh8 Rh7 Qhf6 Rg7 Q7e6 Be2 Qfe7 Bb5 Q6f6 Ba4
3B2B1/1pNnbK1n/B1B2R2/1R1B2qQ/1P1nN3/P1b5/n2N1rrp/4Nrk1 w - - 0 1 illegal: No proof kernel
1brR1R2/1pP3P1/1kb4n/bb1K1BN1/3nQ1r1/2p1BNB1/NNn1B3/q1N5 w - - 0 1 illegal: No proof kernel
kn4R1/pN1n1RP1/P1N1bb2/5N2/nQ2B1R1/2b3p1/qrN2KN1/1r1RnB2 w - - 0 1 illegal: No possible last move, all moves rejected
N3R1n1/pP1R1pN1/2rr3k/2QnP3/n2RBq1n/2b2R2/R2N1B1N/bb3K2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 c5 d4 g5 b4 f3 e4 c4 e5 c3 h6 g4 d6 c2 b6 g3 b7 g2 d7+ Ke7 b5 Qa5+ Nd2 Qa4 d8R Qb3 h7 Nf6 b6 Nbd7 b8N Ne4 h5 Qb1 b7 Ndf6 h6 Qa2 d5 Ng4 Bd3 Qc4 Rh4 Nc3 Na6 Bf5 Nc7 Na4 Ra2 Nf6 Rd4 Rc8 Na8 Rc6 Be4 Ng8 d6+ Ke6 d7 Bb4 Qe2 Bc3 Qf2 Ke7 Bb2 c1B Ba3+ Ke6 Bc5 B1b2 Qe3 Ba1 Re8+ Ne7 d8R Qb4 R8d7 f2+ Ke2 f1N Ngf3 Rg8 h8R Rg6 h7 g1N+ Ke1 Rh6 Nh2 Nf3+ Kf2 Rg6 Rhg8 Rf6 h8N Nh4 Rg3 Bg6+ Rf3 Bh7 Qd3 Ne3 Qc4+ Nd5 Kf1 Bf5 Ng6 Rd6 Rc8 Ng8 Ne7 Bh7 Nf5 Rg6 Rdd8 Rh6 Ng7+ Ke7 Ne8 Kf8 Rd7 Rf6 Bb6 Rc6 Qc5+ Rfd6 Nf6+ Kg7 Re8 Kh6 Nh5 Qb2 Ng7 Qc2 Bg6 Qe4 Bf5 Qg4 Be4 Qf4 Bd8 Ng2 Bh4 Bf5 Be1 Nh4 Bf2 Nc7 Bd5 Bb1 Be4 Nd5
1nQ1BrnB/N2Rr2r/2p2B1q/NBPp1R2/Q2qBr2/1P1b2k1/K3b3/B7 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Be7 h4 fxg4 Ra6 g3 Ra5 g4 Ra1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 Kf7 Kc3 Ke6 Kb3 Kf5 c4 a5 f4 h5 e4+ Kg6 e6 d5 c5 a4+ Ka2 g2 b6 h4 e7 Kh5 e5 h3 e8Q+ Kh4 e6 g3 e7 h2 b7 c6 g6 a3 g7 Bh3 f5 Qb6 f6 Bf5 f7 Be4 f8B Rh6 Qc8 Bf5 e8B Bg6 Nd2 Rh8 Ngf3+ Kh5 Be7 g1R Nc4 g2 Bf6 Ra4 Na5 Qa7 Bb5 Re1 Rf1 Rf4 Qa4 g1R b3 h1B Bcb2 Rh7 Nd4 Re7 Rae1 Rgg4 Ba1 Bf3 Re6 Rg3 Rd6 Be2 Rd7 Kg4 Rf2 Bgd3 Rf3 Na6 b8B Kh3 Rf2 Rgf3 Bbe5 Kg3 Rf1 Nb8 Rf2 Nh6 g8B Qa8 Be6 Ng8 Bf5 Qa7 Be4 Qc7 B4g6 Qd6 Be4 Qe6 Bh8 Qh6 Beg7 Rf8 Bf6 Rf5 Ba6 Rf3 Nb5 Rf4 Na7 Bb5 Kb1 a2+ Kb2 Bbd3 Bb5 Rg4 Rf5 Rf4 Ka3 Rhf7 Bae5 a1Q+ Kb4 Qb1 Ka3 Qg1 Ka2 Rh7 Ba1 Qd4
R1B2brq/4rb2/PP3n2/2qkN3/B2Bp1bR/1R5N/1Kp3b1/R2Q1nBR w - - 0 1 illegal: No proof kernel
3NB1qN/6bp/1R2Qr1P/RB3b1b/2BBqk2/b1p1Rn2/R5RP/Kr3n2 w - - 0 1 legal: proof: f4 d5 c4 dxc4 g4 e5 fxe5 b5 a4 Qg5 axb5 Qh5 gxh5 Bh3 Kf2 Be6 Ke1 Bc8 e4 Ke7 b4 Ke6 d4 g5 Kd2 c5 Kc3 a5 Kb2 f5 b6 a4 h6 f4 b7 f3 b5 g4 d5+ Kf7 d6 Ke6 b6 f2 d7 g3 d8R g2 Qe2 Bd6 Na3 Ra7 Ra2 c3+ Ka1 c4 Nc2 a3 Bb2 Nd7 b8R Ne7 b7 Ra5 Ra8 Ra6 b8R Nf5 Rb6 Ng3 Nh3 g1Q Nb4 c2 Rg8 c1B Bd4 c3 Nc6 Bf8 Qe1 Bg7 Bb5 f1B Nd8+ Ke7 e6 Ne5 Bc4 Kf6 Nf4 Kg5 e7 Be2 e8B Nf1 Ba4 Nf3 e5 Bf5 e6 Qe3 e7 Qe4 e8B Kg4 Rb7 Rf6 Ng6 Bd1 Ra5 Be2 Ne5+ Kf4 Nef7 Bd1 Beb5 Be2 Re8 Rf8 Re5 Rb6 Nh8 Rff6 Be8 Rb3 Rb6 Bd1 Rg2 Rb1+ Ka2 Bb2 Bab5 Be2 Rhg1 Bd1 Rc2 Be2 Rg2 Bd1 Kb3 a2 Re7 a1Q Re5 Qd5 Re3 Be2 Rd2 Qg8 Rc2 Ba3+ Rb2 Rd1 Rc2 Qc1 Ka2 Qd2 Rb2 Rb1 Rc2 Qd3 Rd2 Rb3 Ka1 Qe4 Rc2 Ne5 Ra2 Bh5 Qe2 Nf3 Rd3 Qa8 Qe6 Qe4 Re3 Rb1#
Q4bBB/K4pP1/1p4BB/3n2r1/rn1n1B1R/1kn1q2Q/1q2PBbR/4NN2 w - - 0 1 illegal: No proof kernel
R1R1bB2/P2r1prq/N1Qb2BP/2R1n3/q6q/5q2/R1pR4/QK1nk1NR w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 e4 b5 d4 c5 Kd2 g5 Kc2 g4 h4 g3 a5 g2 d6 Kc6 a6 c4 a7 c3 d5+ Kc5 h6 Bf5 e6 Nc6 h7 Rc8 d7 Nf6 h5 Ne5 d6 Rc7 e7 Rg8 h8R Nfg4 e8R Qh4 d8R Rg7 h6 Rd7 Ba3 Nf2 Nd2 Kd4 Bd3 Ke3 Ra2 b3+ Kb1 b2 Ra8 b4 Nb3 Be6 Qf1 Nd1 Nc5 Kd2 Na6 Bc4 Bc2 Bb5 Rec8 Ba4 Rc5 Bc6 Qf4+ Ke1 Qc1 Be7 Rhc8 Bb5 Nh3+ g1Q Bd3 Qf1 Ng1 Qf3 Bc2 Rb7 d7 Bd6 d8R Be8 Bd3 Nc4 e5 Rd7 e6 Ne5 e7 Rc7 Kc2 Rd7 Kb3 b1Q+ Qb2 Rg4 Bg6 Qbe4 Qa1 Qd4 Kc2 b3+ Kc1 b2+ Kb1 Qa4 Bd3 Rg7 Bg6 Rb7 Bb4 Bc6 e8Q Bd7 Qe7 Be8 Qd7 Rc7 Qc6 Rd7 Ba3 Bc7 Rc4 Kf1 Bf5 Ke1 Bf8 Re7 Rd2 Rd7 Rc5 Bd6 Bd3 Qaf4 Kc2 Q4e4 Kb3 Qh7 Bg6 b1Q+ Rdb2 Qbd3 Rd2 Qb5+ Kc2 Qba4+ Kb1 c2+
2K3R1/3R1n1N/p1Bp4/nQ1NB1r1/N1bP2q1/kN5R/P3NRrn/4qq1r w - - 0 2 legal: proof: e4 f5 exf5 g5 f4 c5 b4 Nh6 bxc5 Ng8 h4 gxf4 g4 Qb6 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 h5 Kf3 b5 Ke4 e5 Kd5 Ke7 d4 d6 c4 f3 g7 a6 c6 b4 g6 f2 f6+ Ke8 f7+ Ke7 f8N e4 c7 e3 c5 h4 c6 b3 Qh5 h3 Nd2 h2 Bg2 f1Q Ne2 b2 Nb3 b1Q Nh7 Nh6 g8R Qd7 g7 Nf7 Rd8 Qg4 g8R Bf5 Bd2 Qbe1 Rb1 Bd3 Rb2 Nd7 Rc2 Nc5 Be4 Nb7 Bg2 Qeg3 Be1 Q3h4 Bg3 Na5 Be5 Qhe1 Qf5 Bb5 Qd3 Ra7 Qc4 Rb7 Qa4 Bd3 Qb5 Rb6 Ng1 Rb8 Rf2 e2 Be4 Qb1 Bf3 e1N Bg2 Nf3 Ne2 N7g5 c8N+ Kf7 c7 Qbe1 Rg6 Rg8 Nb6 Ke7 Rg7+ Nf7 Na4 Rb6 Rg5 Rc6 Rg6 Rc2 Rd7+ Ke8 c8N Rb2 Rf6 Rg5 Ne7 Rd2 Rg1 h1R Rh6 Nh2 Rh3 Rc2 Rf5 Rd2 Ke6 Rc2 Bc6 Bc4+ Nd5 Rd2 Nf4 Rf2 Ne2 Rg2 Re7+ Kd8 Rd7+ Kc8 Bb7+ Kb8 Ke7 Ka7 Rf2 Qd2 Ke8 Qde1 Bc6+ Nb7 Qa5 Rh5 Ndc3 Qe4 Nbc5 Rg4 Nb2 Rg6 Qa4 Kb6 Nb3 Na5 Rg4 Rgh6 Rg7 Rg6 Rg8 Rg2 Ke7 Qg4 Ke8 Nh8 Kd8 Rg5 Kc8 Nf7 Nbc1 Nb7 Qb3+ Ka5 Nba4 Nbd8 Qb8 Nb7 Nb3+ Kb4 Nd5+ Ka3 Rf5 Qd1 Rf2 Na5 Qb5 Qde1
NbnN1b1N/1N1Bq3/3n1P1Q/1K2p1r1/3Q1R1R/1b2b2b/pB1nP2k/N5N1 w - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 a4 a5 h3 b5 axb5 Ra6 h4 Rg6 Nh3 fxg4 Ng1 g3 Ra3 g4 Ra1 Rg5 hxg5 Be6 Qc2 Bd7 Qd1 Bc8 d4 Kf7 Kd2 Kg6 Kd3 Kf5 Kc4 e5 b4 c5 f4 h5 g6 h4 d6 g2 d7 a4 d5 g3 b6 Kg4 b7 a3 b5 a2 d6 h3 g7 h2 f5 Ne7 g8N Nbc6 b8Q Nd5 b6 Qg5 d8N Rh5 d7 Nc3 b7 Na7 Ne7 Ncb5 Ng6 Qe7 f6 Rg5 Nh8 Kh4 Nd2 Nd6+ Kd3 Kg4 Bb2 c4+ Kc3 Kh4 Kb4 c3 Nb3 c2 Kc5 c1B Qd4+ Bf4 Qc7 Kg4 b8N Kh4 Nb7 Kg4 Nf3 Kh3 d8N Be3 Na6 Bf5 Kb4 Nac8 Qc1 Be6 Rb1 Bc4 Na1 Bb3 Qd5 Ba7 Nc7 Bb8 Qdc5 Kg4 Qf2 g1N Na8 g2 Qd4+ Kh3 Qcd2 Kg3 Rc1 Kh3 Rc4 Kg3 Q4d3 Kh3 Rf4 Kg3 Qd4 Kh3 Nh4 Nf3 Qc1 Nd2 Nf3 Kg3 Ka5 g1B Bh3 Be3 Bd7 Nf5 Kb5 Kh3 Rg1 h1B Rgg4 Bg2 Ng1+ Kh2 Rh4+ Bh3 Qb1 Ng3 Qg6 Nf5 Qh6 Nfd6+
6qB/bB3R1K/4B1p1/Rr3nPQ/qp4r1/k1N2Nbb/B1BB1P1q/2q3Q1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g6 b4 axb4 h4 Na6 h5 Nc7 h6 Ne6 Qd5 Qb6 Qd1 Ng7 hxg7 Qd8 Kd2 e5 Ke3 Ke7 a4 d5 g4 h5 c4 b5 c6 Kd6 f6 Kc5 a5 h4 c7 e4 Kf4 e3 Kg5 b3 a6 Kb4 a7 d4 c5 b2 c6 e2 Nc3 e1B Bd3 b1Q Nf3 h3 Ra5 h2 Bc2 d3 Bd2 Nh6 g8B Nf5 Ba2 Rb8 a8B Bc5 Bb7 Qg8 f7 Qc1 f8B Rh4 Bg7 Ba7 Bh8 Bd7 c8B Be6 Na4+ Ka3 c7 b4 Kf6 Bd7 g5 Rd4 Qe2 Rg4 Qf1 Be6 Qg1 Bd7 Bbd5 Rb7 Be6 Rb5 Bb7 Bc8 Bf4 Bd7 c8Q d2 Qc6 d1Q Bd2 Bc8 Qe8 Bd7 Qf7 Bc8 Qh7 Bd7 Qh5 Bc8 Bce4 Qb3 Nc3+ Qa4 Bf4 Bd2 Bc2 Qd8+ Kf7 Qd5 Kg8 Bd7 Bd6 Bf4 Kh7 Bg3 Bf4 Qc4 Bd2 Qc8 Qd1 Qe8 Re1 h1Q Re3 Qh4 Qg1 Qh2 Re4 Qb8 Rf4 Ng7 Ne2 Bc6 Nfd4 Bg2 Rf7 Nf5 Nc3 Bh3 Nf3 Qg8+
Q4RbB/3B2rP/p2K4/n4Nrq/1R1r1qp1/1RRB2P1/2r1RbBk/4q2N w - - 0 1 illegal: No possible last move
6BB/5rr1/1P1BR3/4p1R1/Q1b1PbB1/1qNbq1rN/1kpB1K2/N2bN1n1 w - - 0 1 illegal: No possible last move, all moves rejected
rNn5/2p1R2r/b1P1PBkb/1r1BR1p1/3rR1R1/1Q2q3/K1q4b/RNN2N2 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 e5 axb5 f6 dxe5 Nc6 h4 Nce7 h5 Ng6 hxg6 f5 Qd3 fxg4 Qd4 Qf6 Qd1 Qd8 Kd2 a5 Kc3 h5 Kb3 d5 c4 d4 f4 d3 e4 d2 g7 Kf7 b6 h4 b7 g3 b8N a4+ Ka2 g2 b4 a3 b5 h3 b6 h2 f5 Ra7 c5 Rh5 c6 Ne7 g8N Bh6 f6 Rh3 b7 Bg7 e6+ Kg6 f7 Rb3 f8R Qd4 e5 Bh6 Rf4 Rb4 Bc4 Rb3 Nf6 Ra6 Bd5 Ra5 Ne2 g1B Bb2 Ng8 e7 Qa7 e8R Rd3 e6 Rd4 Ng4 Rb5 Re4 Ne7 Qb3 d1Q Nc1 Qc2 Ne3 Qac5 Nf1 Q5c3 Nd7 Qe3 b8R Ba6 Rb7 Nc8 Nb8 Bf2 Rg1 h1R Rgg4 Bg1 Re7 Bh2 Ng3 Rf1 Rb6 Rf7 Nf1 Rh7 Rb7 Ra5 Rb4 Rb5 Re5 Bb7 Rf5 Rd1 Rbe4 Qc4 Bf6 Rd4 Rfe5 Qc5 Nc3 Qc4 Kb1 a2+ Kb2 Qcd3 Rb1 Qd1 Ka3 a1R+ Kb2 Raa5 Ra1 Ra8 Nb1 Ba6 Ka2 Qc2+
4N3/1pnR1B1q/4r3/1P1NBPbp/r1r1R2r/qkB2B1Q/4Bbb1/R3K2R w - - 0 1 illegal: No proof kernel
3b2Rr/p3NN1Q/bb2q3/P1b2NqB/Pr1Rqp1B/6R1/4K3/1NNR1n1k w - - 0 1 illegal: No possible last move
2N1bbB1/P1p4R/qNN1Nqb1/p1B5/6QN/PQR1nn2/n1rN4/Kb1k4 w - - 0 1 legal: proof: e4 d5 b4 a5 h4 g5 c4 gxh4 cxd5 f5 exf5 b6 b5 Ra6 bxa6 b5 f4 Kf7 g4 Kf6 d4 e5 Kd2 h5 Kc2 e4 Kb2 b4 g5+ Kf7 d6 h3 g6+ Kf6 a7 h4 d7 b3 g7 h2 d5 h3 d6 e3 a3 e2 Be3 e1N Bc5 Nc6 Qg4 Nb4 Bc4 Nh6 g8Q Be7 Nf3 Nec2 Rc1 h1B Bd5 Ne1 Rc3 Qe8 d8N h2 d7 Qg6 Nf7 Na2 d8N Bd7 Nd6 Be8 Nc6 Bg2 Be6 h1Q Nc8 Qf1 Bd5 Qa6 Qe6+ Kg7 f6+ Kh7 f7 Nf5 f8N+ Kh6 Nd7 Ne3 f5 Bf1 f6 Bd3 f7 Qf6 f8N Bdg6 Qc4 Kh5 Ndb6 Rh7 Qf7 Rh6 Qe2 Kg4 Qg8 Rh1 Nbd2 Kg3 Qd1 Kf2 Qe6 Bd6 Qg4 Rf1 Qb1 Ke2 Bg8 Rg1 Ne6 Bf8 Qc2 Rf1 Rc1 Rh1 Ka1 Rf1 Nh4+ Nf3 Ng2 Rh1 Rb1 Rc1 Qb2 Nb4 Qa2 Rc2 Rh1 b2+ Kb1 Qc4 Rh7 Kd1 Nh4 Qa6 Qac4 Nd3 Ka2 b1B+ Ka1 Nb4 Qb3 Na2
2n3B1/B1q1pNB1/B6P/rp3nqQ/RR2Pr2/1K2RB2/r2b2N1/n1kn2R1 w - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 h5 b4 axb4 f3 g5 gxh5 g4 Ba3 g3 Bc1 Bg4 fxg4 Qd7 Qc2 Qc8 Qd1 Qd8 a4 Kd7 d4 Kd6 Kd2 c5 Kc2 f5 h4 b6 h6 c4 h5 f4 a5 f3 g5 f2 h7 c3 h6 g2 g6 Bg7 a6 Nd7 a7 Ngf6 Nh3 g1Q Na3 Nh5 Nf4 Ng3 Ng2 Rf8 h8B Nf5 Kb3 c2 Be3 c1R Rh3 Bf6 g7 Rc2 g8B Ra2 Bg7 Bg5 Rg3 Qc7 Rg4 Rac8 a8B Rb8 Bb7 Ra8 Ba6 b5 Rb1 Nb6 Nc4+ Kd7 d6 Kc6 d7 Nc8 d8R Rf7 Rf8 Kd5 Ne5 Bf4 Rh4 Ke4 d5 Rf6 d6 Rf7 Ne1 Qg5 d7 Ra5 Bh3 f1N Ba7 N1e3 d8R Nc2 Bg4 Bd2 Rd4+ Ke3 Bf3 Ra2 Rhg4 Ra5 Rg1 Rf6 Kb2 b3 Ra1 Rf7 Raa4 Rf6 Rfd8 Rf7 R8d6 Rf8 Re6 Rf7 Kb1 b2 Ka2 b1N Kb3 Nc3 Rab4 Nfd6 Ra4 Rf4 Rab4 Nf5 Ng2+ Kf2 Nf7 Ra2 Qa1 Nd1 e3 Ra5 Rdc4 Ra2 Qe5 Ra5 Bc6 Ke2 Bf3+ Kd3 Qc5 Be1 Ra4 Kd2 Rcb4 Kc1 Qe5 Rh4 Qh2 Rf4 Qh5 Bc3 e4 Be1 Rc6 Bd2 Rc3 Qc5 Bb6 Nfd6 Bb7 Qc7 Ra2 Nf5 Re3 Ra4 Bbd4 R8a6 Ba7 R6a5 Ba6 Nb6 Rb2 Ra1 Ra2 Nc8 Ra3 Ra2 Raa4 Na1+
7Q/1QbN4/1p2BN1r/4p1r1/2b1nN1k/1PRP2bq/1qKN1N2/BR1rr2N w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Na6 a5 Nc5 a6 Nb7 axb7 Qd6 Bb5+ Qd7 Bf1 Qd8 b8Q Kf7 f4 Kf6 g4 e5 d6 a5 b3 c5 g5+ Kf7 d3 h5 Kd2 h3 d7 h2 g6+ Kf6 g7 a4 Qf3 a3 Bh3 h4 Bb2 c4 Kc2 a2 Qfb7 c3 Ne2 Qe7 d8N Bd7 Rc1 h1R Ne6 Rh6 Nc5 Bb5 Nd2 Rd1 Rab1 a1R Ng3 Bc4 Nh1 Re1 Bg4 h3 Q8c8 h2 Nce4+ Kf7 f6 Kg6 f7 Qa3 Bf5+ Kh5 Be6 Nf6 g8N Bd6 f8N Kh4 f5 Bc7 Nef2 Ne4 f6 Ra4 f7 Rd1 Ng3 h1Q Nf6 Qh3 N8d7 Ra8 Qh8 Rg8 f8N Rg5 Ngh1 Qh2 Nf1 Ra2 Ra1 Nd6 Kb1 Rd2 Rc2 Ne4 N2g4 Qh3 Kc1 Re2 Kd1 Re3 Rac1 Re2 Ba1 Re3 Rb1 Rb2 Rd2 c2+ Kc1 Re2 Ngf2 Re1+ Rd1 Nd6 Kd2 c1B+ Kc3 Be3 Rdc1 Rd2 Rc2 Rdd1 Nd2 Bf4 Rcc1 Bg3 Rc2 Rf5 Ng6+ Kg5 Nf4 Kh4 Rcc1 Rg5 Rc2 Qa6 Kb2 Ne4 Rc3 Qa3+ Kc2 Qb2+
q6N/1Rq2R1N/1pR1P2r/4Qp2/1QKBR3/RPn3r1/B5b1/1Rq1qrnk w - - 0 1 illegal: No extended proof kernel
n6r/1kn1N2R/p1n1B1bP/1nB1K1B1/4B2p/PB1QNq1R/1q6/1b1Qb2B w - - 0 1 illegal: No possible last move, all moves rejected
1bb1bNqn/1pR1P1BB/Q2Rp3/6r1/RPK4B/B7/1b2Rn1b/N2bB1k1 w - - 0 1 illegal: No proof kernel
BR1R4/pnb1B2B/N3rbp1/kn3B2/P2R1r2/nb1r3R/2RP1b1N/2QK4 w - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 d5 e4 dxe4 b4 g6 bxc5 Kd7 h5 Ke8 h6 Qc7 Qf3 Qe5 Qd1 Qg7 hxg7 Be6 Nf3 Bd7 Ng1 Bc8 a4 Kd8 f4 Kc7 c4 e5 c6 Kb6 f6 h5 f7 h4 c7 h3 c5+ Ka5 f5 b5 c6 b4 f6 b3 Ra3 h2 Bh3 b2 Bf1 e3 Ra1 e2 Bg2 e4 Na3 b1N Nc2 Ne7 g8B Bg7 f8R Be6 c8R Nd7 f7 Nd5 c7 Bf6 Bh7 Na3 Rcd8 Nc3 c8B Ncb5 Nf3 Bb3 Ra2 Nc5 Nb4 Nb7 Bf5 Rg8 Rd3 Re8 Rd4 Re6 Rb8 Rd8 f8R Rd7 Rc2 Rf7 Rg1 h1R Rfd8 Rh3 Nh2 Rd3 Rh1 Rf8 Na6 Rf7 Kf2 e1B+ Ke2 e3 Bb2 Bg3 Qc1 Bc7 Kd1 Nb1 Ba3 e2+ Ke1 Rf8 Be7 N1a3 Bf3 Nc5 Ba8 Nb7 Kf2 e1B+ Kf1 Rc6 Ke2 Bf2 Kd1 Rb6 Nf3 Re6 Rh3 Bg7 Nh2 Rff6 Be4 Rf4 Bf5 Bf6
NN1B3n/4p2N/1R1nb2r/N1k1P3/3bn2K/n2q1Rp1/P2QN3/bB1N1b1Q w - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 b5 b4 a5 h3 axb4 gxf5 g5 h4 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bd7 Nf3 Be6 Ng1 Bc8 d4 Kd7 f4 Kd6 Kf2 c5 Kg3 h5 e4 c4 f6 b3 f5 b2 e5+ Kc7 f7 Kb6 g6 c3 f6 c2 g7 b4 d6 b3 d5 Bd7 Rh3 Na6 Qd2 Be8 d7 Nh6 g8Q Nc5 d6 Kc6 Qh7 Nb7 Ne2 Kc5 Nbc3 b1B Kh4 b2 Rf3 g3 Nd1 Bg7 f8N Nf7 Qe4 Rh6 Nh7 Nh8 f7 Bf8 Bg2 Bg7 f8N Bf7 Bh3 Be6 Bf5 Bf6+ Qg5 Bg7 Bd2 c1B Ba5 Bd3 Qd2 b1N Bg6 Na3 Rb1 Ba6 Rb6 Bb2 Qb1 Ba1 Qbc1+ Bac4 Bb1 Qa8 d8N Qa6 d7 Nd6 Nc6 Qb5 Nec3 Bf1 d8N Qa6 Nb8 Qd3 Kg5 h4 Ndc6 h3 Ne2+ Bc4 Kg4 h2 Kg5 h1N Ne6+ Kd5 Nc7+ Kc5 Na8 Nf2 Bc3 Be6 Na5 Rf6 Kh5 Bh6 Kh4 Be3 Bb4+ Kd5 Bc5 Bed4 Bb4 Nfe4 Bc5 Nb7 Bd6 Rg6 Bc7 Nbd6 Bd8 Rf6 Qcb2 Kc5 Qe1 Bg2 Qh1 Bf1 Qd2 Rh6+
n1n2b2/2QB1B2/1RnN2pr/5B2/RK1pP1bN/2BRq1Pp/R1b4r/1kB5 w - - 0 1 legal: proof: f4 b5 h4 e5 fxe5 c5 d4 cxd4 a4 g6 axb5 Nc6 h5 Qf6 h6 Qg7 hxg7 Nb8 Kd2 Ke7 b4 Ke6 c4 Kf5 e4+ Kf4 c5 f5 b6 h5 b7 a5 c6 d5 c7 d3 Kc3+ d2 g3+ Ke3 b5 h4 e6 a4 e7 a3 e8B h3 b6 a2 Bc4 f4 Na3 f3 Rh2 f2 Nb5 f1B Nf3 Nc6 b8B Bd3 b7 Bc2 Nh4 Rh6 Nd6 Bg4 c8B Nge7 Bf5 Nc8 g8R Ra6 Bed7 Rb6 Rb1 a1Q+ Rb2 Qa6 Ra2 Rb2 Ra4 Qb6 Bc7 Ra2 b8R Qc5 Ba5 Qa3+ Bb3 d4+ Kc4 Rb2 Bc3 Ra2 Kb5 Kd3 Rb6 Rb2 Qh1 d1N Re2 Ra2 Bf7 Ne3 Rf2 Nd5 Rd2+ Ke3 Kc4 Nc7 Rd3+ Ke2 Qg1 Na8 Qe3+ Kf1 Qg5 Ke2 Qd8 Rb2 Qc7 Ra2 B1d2 Kd1 Rg7 Qc1 Bg5+ Qd2 Rg8 Kc1 Kb5 N6a7+ Kb4 Kb1 Be3 Qf2 Bc1 Qe3 Rh8 Bb3 Rg8 Rh2 Ra2 Bc2 Ra4 Bg7 Re8 Bf8 Re5 Qg5 Rea5 Qd2 Ra2 Qe3 R5a4 Nc6+
N3k3/2b4Q/Pn1B1KRr/1r6/R3N1rN/1P1p1Bn1/ppbN2N1/q1B2Bb1 w - - 0 1 illegal: No proof kernel
2b1RR1R/k1Bq1B1P/N1P1BQn1/R7/2ppr1pb/2rnb3/5R1B/1N1r3K w - - 0 1 illegal: No proof kernel
3nBRRR/2N2p2/2N2bnp/3Pb3/3r4/kP1B1R2/1q1pr1B1/nK1b1RBQ w - - 0 1 illegal: No proof kernel
2N3rn/5p2/bKN2P2/1Q3rRP/p1Q1N1N1/Nrbb2B1/1pnqN1BR/3k4 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 dxe5 h5 gxh5 Nf6 axb5 Ng8 b4 cxb4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 f4 Ke4 h4 g5 h6 a5 e6 a4 h5 g4 b6 d5+ Kb5 d4 c4 d3 b7 b3 f5 g3 e7 d2 e8Q+ Qe7 f6 Ke3 h7 g2 c5 b2 c6 Bf5 c7 Qe6 c8N Ne7 Rh2 Ng8 Na3 Qe5+ Kb6 Kf2 e4 Ra5 Qc2 Ke1 Qb5 d1B Ne2 g1R Bf4 Qd5 e5 Bb4 e6 Nc6 b8N Bc3 e7 Rg3 e8N Bd3 Ned6 Nd4 Bg2 Ne7 Nc6 Rhg8 h8N Ng6 Ne4 Qd7 Qcb3 Nc2 Q5c4 Rf5 Qbb5 Rf3 Bc7 Qd6 Rc1 Qf4 Ra1 Qd2 Bb8 Nh4 Ng6 Re3 Nge5 Ng6 Ng4 Nh8 Nc1 B1e2 Bg3+ Kd1 Nb1 Bf1 Ne2 Qe1 Ra3 Ref3 Rb3 Qd2 Na3 Nb4 Qbd5 Nc2 Rb5 Re3 Qd7 Rf2 Rg5 Rf5 Qcd5 Ba6 Qc4 Rd3 Qdd5 Re3 Qdb5 Ref3 Nc1 Bd3 Ne2 Bb4 Ned6 Be4 Qe5 Rb3 Qeb5 Bd3 Ne4 Bc3
1BqRR3/2p1BR2/r3PKb1/Q1R1rn1p/1p1BN3/1rbP4/2n3R1/1NkB2n1 w - - 0 1 illegal: No proof kernel
b1rnrN2/2pB2kB/2KPR2n/Bp1P1pNB/4rq2/b2N2B1/2Q2R1b/3N4 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 b5 Ke3 g5 Ke4 g4 a4 f6 d4 Kf7 h4 b3 h6 b2 h7 g3 e6+ Kg7 h5 g2 a5 Ne7 d6 Rg8 h8B+ Kh7 a6 Bd7 a7 Bh6 Ra6 Bf4 h6 Rg7 Nc3 b1R Nh3 g1B Bd2 Rc1 Qc2 Ng8 Kd5+ Rg6 e4 Be5 e7 Rg7 e8B Rb1 Nd1 Bgh2 Bd3 Rb2 Nf4 Rg6 Ba5 Qc8 Rf1 Qd8 Rf2 Rg7 Bh5 Nc6 Kc5 Rb8 a8N Bg4 Nb6 Qf8 Nd7 Nb4 Rb6 Na6+ Kc6 Re7 Bg7 Qc8 Bf8 Kh8 h7 Bf3 Bh6 Rb4 Nf8 Qd8 Bg5 Bh1 Bh4 Nh6 Bg3 Kg7 h8N Rc8 Nf7 Re8 Ng5 Qe7 Nd5 Bf4 e5 Bc1 Bh7 Nc5 Ra6 f5 Rb6 Ne4 Nf4 Ba3 Nd3 Qf7 e6 Qf6 e7 Qe5 Rb8 Qf4 Ra8 Red8 e8B Nc5+ Rf3 Nb7 Bd7 Re8 Rb8 Re4 Rf2 Ra4 Bc3 Ra8 Ba5 Rce8 Rd8 R8e7 Re8 Rc8 Bb6 R7e5 Re6 Bg2 Ba5 Bh1 Rf6 Ree8 Re6 Nd8+ Kd5 Re1+ Rg2 Re3 Bb4 Re2 Kc5 Re1 Rf2 Ba8 d5 Nb7+ Kc6 Re4 Ba5 Nd8+
3B1B2/bp2b3/PnR2NbB/1Q1r2RK/B2P1rB1/1p2N3/pB1kqQ2/4n1n1 w - - 0 1 illegal: No proof kernel
1BB3n1/1pp3B1/N1k5/2bn3P/1B1pPQ1K/B1rr2R1/b1bBq1n1/2N2R1Q w - - 0 1 illegal: No proof kernel
1q3k2/R1b1nbr1/3PR2N/1R4pp/1N1r1b1B/1pN1PB1N/1KQ2qR1/3N3n w - - 0 1 illegal: No proof kernel
2r4k/5QnB/P1B2p1q/p2BB1qq/n1R2PbB/5RpN/3K2N1/1B2bQr1 w - - 0 1 illegal: No proof kernel
1kbR2r1/nB1q2p1/4q1bP/p1R3NQ/4R3/r2BN1p1/RBnb2P1/2KB3R w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 h5 f4 d5 cxd5 Ne7 fxe5 Ng8 Qa4 Ba6 Qe4 Bc8 Qg4 hxg4 Kd1 Kd7 b4 f5 h4 a5 d4 c5 e4 Kc7 b6+ Kb7 d6 f4 e6 g3 e5 f3 d5 f2 e7 c4 e8B c3 d7 Qe7 d8Q Be6 h5 Bh3 e6 Nd7 d6 Nh6 b5 Qf7 e7 Rh7 Bb2 Rb8 Nf3 Qa2 Ng5 Qa3 Nd2 Nf7 h6 Qa2 Nc4 Rh8 Ne3 Nde5 d7 Nd6 Bh5 Nc6 Qe8 Na7 d8R c2+ Kd2 Rc8 Bd1 Rc3 Qh5 Bc8 e8B Qe6 Ra2 Nf5 Rd5 Bb4 Rc5 Rh7 Bfe2 f1B Bg6 Ka8 Bg4 Nd4 Bgf3+ Nac6 Bfe4 Bd3 b7+ Ka7 b8R Ra3+ Rc3 Rh8 b6+ Ka6 b7 Ka7 Rh3 Rg8 Rh1 Bd7 Rd8 Bc8 b8R c1Q+ Ke1 Qb1 Kd2 Bc2 Bef3 Bf5 Rb5 Qd3+ Kc1 Nc2 Rc4 Qdd7 Rbc5 Kb8 Be4 Na7 Bb7 Bg4 Bd3 Bf5 Rch4 Bg6 Re4 Bd2+
3n3K/B1k1Bbpr/2nqpb2/b1B2B2/1BPP3Q/p4RRq/5N1r/2B1N2Q w - - 0 1 illegal: No possible last move, all moves rejected
2nQQRRb/1R1pBn1R/2Rp4/r2N2p1/3qR3/rB1P2PN/1bK2q2/4rk2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bb7 axb5 Na6 h5 Nb8 Qe2 Bd5 Qe5 Bf7 Qd6 Bg6 hxg6 cxd6 Kd1 e5 c4 Ke7 f4 Kf6 b4 a5 g3 h5 b6 a4 g7 e4 b5 e3 c5 h4 c6 e2+ Kc2 e1B c7 a3 c8R h3 b7 h2 b6 a2 Rc6 Ra4 Bc4 Rh5 d3 Qe8 Bb2+ Bc3 Bb3 Ra3 Nh3 Nh6 g8R Nf7 Re1 h1R Re4 Be5 Nc3 Rh4 Rd1 a1Q Rd2 Ra8 Rh2 Re1 Rh1 Ra3 Rh2 Na6 b8Q Bg7 b7 Qf8 Qe8 Bh8 b8R Nc7 Rb7 Nd5 Qd8+ Ne7 Qe8 Ra5 Rh1 Qa4 Qd8 Nh6 Ba1 Qd4 Nd5+ Kf7 f6 Ke6 f7 Kf5 Rh2 Kg4 f5+ Kf3 f6 Nc8 Rh1 Kg2 Bb2 Qe7 f8Q Qf7 Qfe8 Qf8 Rh2+ Kf1 f7 Ra3 Bc3 Rf4 Bb2 Rf5 Bc3 Qe3 Ba5 Bb2 Bb6 Qg7 f8R Nf7 Bd4 Qf4 Bf6 Qf3 Be7 Qd4 Nhf4 Qfe3 Rh7 Qg1 Nh3 Re5 Ndf4 Rea5 Nd5 Qgf2+
KN5b/1pn1qb1q/1NN1BP2/p3Q1nR/1P2NB1r/R1Nk1p2/1Q5N/2r3n1 w - - 0 1 illegal: No proof kernel
nr1Q3N/1pb1RNpr/Q1R5/1b2RKpk/1P1Pn3/1Bq1rR2/RR6/5q1B w - - 0 1 illegal: No proof kernel
NQ1B1n1n/r3N2K/4QR1P/N4N1R/N2P1b2/r2p1ppN/qn2n3/1B1k3b w - - 0 1 illegal: No proof kernel
7n/nBr1qBp1/2r3R1/Rn3BP1/3p1k1n/B1PK1b2/R5Qp/2RNbN1R w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qb6 d4 Qh6 dxc5 Qxh2 Kd2 Ke7 e4 Ke6 b4 a5 c6 h5 c3 f5 b6 d5 b7 d4 c7 a4 b5 h4 b6 f4 Ba6 h3 Qf3 a3 Kd3 a2 g4 Ba3 g5 Bd6 Nd2 Ne7 Ba3 Nbc6 b8R Ra7 b7 Ng6 Nf1 Rh6 Rc1 a1N Qg2 f3 Ra8 f2 b8R Nc2 Rb2 Nh8 Ra2 Bb7 c8R Qf4 Rc7 h2 Nh3 Qf7 Rcc8 Ne7 Rc6 Nc8 Rb6 Bc6 Bb7 Qe7 Ra6 Be8 Rb6 Bh5 Rc6 Bf3 Ra6 Kf7 e6+ Kg6 e5 Kf5 Rc6 Ra4 Rb6 Rc4 Ra5 Na7 Rba6 Rc7 Rc6 Qd7 e7 Qe6 e8B Qe7 e6+ Be5 Bc5 Bg3 Bd7 Na3 Rca6 N3b5 Ba3 Bf4 Rc6 Bd2 Rd6 Be1 Rb6 Qc5 e7+ Ke5 e8B Qe7 Bf7 Rhc6 Ne3 f1N Nf2 Kf4 Nfd1 Ng3 Nf1 Nf5 Bdc8 Rc5 Rg6 Nh4 Bf5 R5c6
q2B4/p1P1NnQb/3rKbRp/1r6/4P1Bp/3B3B/k3BNr1/1nBQ1r1R w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 Be7 dxc5 Bf8 Kf2 Ke7 Ke3 Ke6 Ke4 f6 g4 d6 c4 h6 b4 Bd7 b6 Be7 b7 Be8 g5 Bf7 g6 Qf8 b5 Qc8 c6 Nd7 b8Q Bd8 g7 Nf8 c5 Nh7 b6 Be7 c7 Be8 Qb7 Rb8 c6 d5+ Kf4 f5 e4 d4 Be2 d3 Nh3 d2 Ra6 Ng5 Nf2 Nf7 Nc3 Nf6 Nd5 Rg8 Bg4 Qd8 c8B+ Bd7 Qc7 Qe8 b7 Bd8 Qb3 d1R Ne7+ Rd5 Qd1 Rd6 Ke3 Nd5+ Kd4 Nc3+ Kc5 Rh8 g8B Nb1 Be2 f4 Rb6 Ra8 b8B f3 Bca6 Rh7 Bad3 Rg7 Qb7 Rg2 Bc7 Rb8 Bh7 Rg5 Bg6 Qf8 Bh5 Rg2 Ra6 Be8 Qb2 Rb5+ Kc4 Ng5 Qa1 Bg6 Bg4+ Bf5 Ba5 Nf7 Bh3 Bc7 Bb6 Bb8 Bd8 Bc7 Qc3 Ba5 Qb2 Bc3 c7 Qe8 Qbd2 Ba1 Qg5 Qh8 Qg7 Qe8 Ng4 f2 Rb6 f1R Nf2 Qd7 Beg4 Qc8 Bde2 Qa8 Bd3 Kd7 Bde2 Rd3 Rg6 Bc3 e6+ Kd6 Nc6 Be5 e7+ Bf6 e8B Rd2 Ne7 Rd3 Rg5 Bh7 Rg6 Ke5 Bed7 Rdd5 Bd3 Rd6 Bge2 Rbd5 Kb4 Kd4 Bhg4 Rh5 Bdf5 Rg5 Kb5 Kc3 Kc5 Rc6+ Kd5 Kb4 Qe1+ Kb3 Qd1+ Ka2 Bh3 Rc5+ Ke6 Rb5 Bfg4 Rgd5 Rg5 Rd7 Rg6 Rd6+
6n1/1K4NN/1p1qb1k1/nn1PQ1pR/p1B3PB/qq6/RB3QBB/3B1rr1 w - - 0 1 illegal: No proof kernel
2NRQ3/2r2BQ1/3Q1KPQ/1p5n/R1p1q3/q1P1r2r/1BQp2bn/1q2QN1k w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 Bc5 Nh3 Be7 Ng1 Bf8 g4 Bh6 h4 Qf6 h5 Ra4 g6 Ra3 g5 Bg7 h6 Qd8 hxg7 Ra8 Kd2 Ke7 Kd3 Ke6 Ke4 c5 a4 b5 c3 h5 a5 h4 a6 b3 a7 h3 Bb2 h2 Na3 Qa5 Nc4 Nc6 Nf3 Nd4 Nd6 Rh3 Nd2 Nf3 Qc2 f5+ Kf4 Kd5 e6 Qa6 e7 Bb7 e8Q Nf6 Ra4 Rc8 a8Q Rc7 Qad8 c4 Nc8 d6 Bg2 Qa8 Re1 h1Q Rd1 Qa7 e3 Qc5 Qh8 Qa3 Qh6 Qe1 Qe8 Qe2 Nf1+ Qd3 Bc1 b2 Qd8 b1Q g8Q+ Rf7 Qge8 Rc7 g7 Ba8 g6 Bc6 Ng3 Bb7 Ne4 Nh2 Kg5 f4 Ng3+ f3 Bb2 Nh5 Nf1 Ba8 Qf6 Bc6 Qf4 Ba8 Qg3 Bb7 Qd8 Ke4 g8Q d5 Qgg7 d4 Qe1 Bd5 Qd6 Ba8 Qb3 Qe2 Qc2+ d3 Bh1 Qg2+ Qdg3 f2 Rd2 Ng4 Qd6 Kf3 e4 Nh2+ Kf5 Bb7 e5 Ba8 e6 Bd5 Ng3 f1R e7 Rf2 e8Q Re2 Nf1 Re6 Re2 d2 Re5 Bc6 Rd5 Re3 Rd4 Nf4 Kf6 Ba8 Qed1+ Kf2 Qe1+ Kg1 Rd3 Qe4 Bf3 Bc6 Bg4 Ba8 Be6 Kh1 Bf7 Bd5 Qde6 Ba8 Rd8 Bd5 Qd6 Nh5+ Kg5 Qd4 Kf5 Bg2 Kg5 Qh4+ Kf5 Qe4+ Kg5 Nf4 Kf6 Nh5+
kB2n1B1/3Rp1N1/NRrQ4/1nK1b1NR/4p1N1/5Pnr/r3PNqp/q3R3 w - - 0 1 illegal: No possible last move, all moves rejected
k1K5/p1Q4r/q5Np/P2N2rN/BRn2B2/Pbpn1qBB/4R3/1nr1NB2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 e5 h4 Bh6 hxg5 Bf8 f4 Ba3 bxa3 exf4 Kf2 Kd7 Kf3 f5 g4 b5 d4 c5 e4 Kc7 g6 Kb7 g7 c4 e5 h6 d6 b4 g5 b3 d7 b2 a5 Nf6 g8N Nd5 e6 Qf8 d8N+ Ka6 e7 Bb7 e8B Nd7 g6 N5f6+ d5 Rc8 g7 Qb4 Rh4 Qe1 Ra2 Nc5 Nc3 b1N Nf7 Rh7 Ne5 Ne6 Re2 Rc7 Ng6 Ne4 d6 Rc5 d7 Nd6+ Nd5 c3 d8B Rb5 Nf6 Nc5 g8B Nd3 Bc7 Nc4 Nh5 Bc6 Bd7 Kb7 Bge6 Ka8 Qb3 Rc5 Qb6 Qd1 Be8 Bb7 Ba4 Bc6 Bb8 Be8 Bd2 Bf7 Qc7 Bg8 Be1 Bf7 Bg3 Rb5 Kg2 f3+ Kh3 f2 Nf3 f4 Ne1 f3 Kg4 Rc5 Kf5 Bg8 Bg2 f1R Kf6 f2 Beh3 Bf7 Ke7 Rg1 Kd7 f1Q Kd8 Qf6+ Kd7 Qa6 Bf1 Rb5 Bf4 Rg5 Kd8 Rb2 Bg3 Rc2 Rhe4 Rc1 Rf4 Ncb2 Rb4 Nc4 Bf4 Qd2 Kd7 Qe3 Kd8 Qf3 Kd7 Qc6+ Kc8 Qa6+ Rb7 Qb6 Bg3 Nbd2 Qe7 Ne3 Nb4 Bd5 Bbf4 Bb3 Nd5 Nec4 Qc7 Qc6 Rb5 Nb1 Rb4 Qa6+
2NN4/q3bpp1/Bp2NQBK/3bR1BB/1q4Pn/r1k1r3/P6R/b1N2q1N w - - 0 1 illegal: Other
B2N2n1/k4pN1/q1p1N3/K1N5/1BR1qR1r/1bPp1P1N/3Rn2n/2Qrq1R1 w - - 0 2 legal: proof: d4 a5 b4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 a4 Bf4 Bc5 Bd2 Bb6 Bc1 Ba5 bxa5 Ra6 Bb2 Ra7 Bc1 Ra8 Kd2 d5 Kc3 Kd7 Kb4 h5 g4 h3 e4 h4 a6 h2 g5 h3 a7 a3 e6+ Kd6 e5+ Ke7 c3 a2 g6 d4 g7 d3 b6 Rh6 b7 Qd5 Nd2 Kd8 e7+ Kd7 e8R Kc6 e6 Kb6 e7 Qg5 Nb3 Qg2 Ba3 Bf5 Nc5 Bg4 Rc8 Rh7 e8N Nd7 b8N Ngf6 g8R Be6 Nc6 Rh4+ Rg4 Bb3 Qc1 Ng8 Rf4 Ndf6 Nd8 Ng4 Ng7 Qg3 Rb1 a1Q Rb2 Qe3 Rd2 Qe1 Bg2 Qa2 Bb2 Qa6 Ba3 Rb8 a8N+ Ka7+ Nb6 Ra8 Nce6 Rb8 Ba8 Rb7 Rb8 c6 Rc4 Qe4 f3 Re7 Na4 Re8 Ne2 Re7 Rhd1 h1Q Rg1 h2 N2f4 Re8 Nac5 Re7 Rgd1 Qhe1 Nh3 h1N Rb5 Nh2 Ra5 Qf2 Rg1 Qfe1 Rb5 Ng3 Rb8 Qc8 Ka5 Ne2 Rbb4 Qb7 Neg5 Re5 N5e6 Reh5 Rd4 Rg5 Rbc4 Rg2 Bb4 Rf2 Rd5 Rf1 Rf5 Qc8 Rf4 Qb7 Ba3 Qa6+ Kb4 Qf2 Na4 Qb7+ Ka5 Rd1 Bb4 Qe1 Nac5 Qa6+
N2R1B2/nq2p1bN/2p1k3/5q2/nb1R2bp/2q1Pr1B/1RN2P1R/N1N1K1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
Bq1B1B1r/R1q3q1/1B1np3/p1pn2r1/RB3N1k/N2r3P/1N1QP2N/3K2b1 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 f3 hxg4 Na3 g3 Nb1 g2 Nc3 g5 Nb1 g4 Nh3 g3 Ng1 Bg4 fxg4 Qc8 Qa4 Qd7 Qd1 Qd8 b4 a5 d4 f5 g5 Kf7 b6 Kg6 b7 Kh5 d6 c5 g6 f4 d5 f3 b5 e6 b6 Qf6 g7 Qh6 d7 Kh4 d8B+ Kh5 d6 Qh7 d7 Ra7 Ba3 Qf5 Qd2 f2+ Kd1 Rh7 Nf3 g1R Bb4 g2 Na3 Nc6 b8N Qh3 b7 Kg4 Bb6 Nf6 g8N Nd4 d8B Rh8 Na6 Bg7 b8B Rd7 Bd6 Nb5 Bf8 Qh7 Ne7 Nd6 Ng6 Nd5 Nf4 Bd4 h3+ Kg3 Nh2 Be3 Nb8 Qe7 Nc6 Kh4 Ne5 Bd4 Bdc7 Qe8 Ned3 Qb8 Nb2 Rg7 Ng4 Rg5 Bd8 Qc7 Rh2 Rh1 Ra2 g1Q Rg2 Qh2 Rg1 Qb8 Bg2 f1Q+ Qe1+ Qf2 Qd2 Qfg3 Be4 Qhg2 Nh2 Be3 Rf1 Bg1 Ra1 Q2f2 Bg2 Qd4 Rf3 Qg7 Rd3 Nf6 Ba8 Qgc7 Rd5 Qc3 Rf5 Nd5 Rf7 Qg7 Re7 Qcc8 Ra7 Qcc7 Nf1 Rh2 Ra2 Rg2 Nh2 Rg3 Nb1 Be3 Ra4 Bg1 Na3 Rd3
r1b5/3B1RRq/3NB3/2pb1B2/KRQr1B1n/ppPRB3/Nr3bbP/1k6 w - - 0 1 illegal: No proof kernel
R1R2rbk/p7/b2Q1R1q/P1K3Nn/1bpBr1R1/p1N1Q1Bb/2Pr1R2/3R4 w - - 0 2 illegal: No possible last move
1R2B3/pN4Q1/1BKnq3/p7/1R1Nq1Pb/P4N1n/R1rN1kpn/2rR1Nn1 w - - 0 1 illegal: No possible last move
k2r3K/1r2Rp2/5Bbb/P4Q2/1nRR1NB1/1r1rNn1p/RR3PQp/R5b1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 g5 bxa5 c6 d4 Bd7 e4 Ra6 h4 gxh4 e5 Ra8 d6 Bc8 d5 Bh6 Na3 Kf8 Nb1 Kg7 e6 Qd7 exd7 Kf6 Na3 Bg7 Nb1 Bf8 Ke2 Ke5 Ke3 b5 d8R h5 g4 b4 a4 c5 a6 b3 d7 Kd6 Ke4 Kc7 Kf5 e5 a7 Kb7 g5 c4 g6 c3 g7 b2 d6 c2 Re8 e4 Qd5+ Nc6 Nc3 b1R Nh3 e3 Re7 e2 Nd1 e1R Ne3 Rb3 Bb2 c1B Bf6 Rd1 Be2 Rdd3 Bg4 Rb8 Nf4 h3 a8R h4 a5 Bb2 Rhc1 Be5 Rc4 Nh6+ Kg5 Nf5 d8R+ Bd7 g8Q Nd4 Ra6 Bg7 Rb6+ Ka8 Qf3 Be6 d7 Bf5 Qg2 Bg6 Qh7 Bf8 Rc8 Bc7 d8R Bd6 Rbb7 Nb4 Rc2 Bg7 Rca2 Rf8 Rdd7 Rd8 Rc4 Be5 Rb5+ Rb7 Rd6 Be4 Qf5 Nf3+ Kh5 Bh6 Rdd4 Bd6 Ne6 Bh2 Nf4 Bg1 Rb6 h2 Rb5 Bg7 Rb6 Bh8 Kh6 Bg7+ Kh7 Bh6 Rb5 Rd6 Kh8 h3 Rcc2 Rdd7 Rbc5 Rd5 Rcb2 Rd6 Rcc4 Rd5 Qe5 Bg6 Qf5 Rd8+
8/NpnP1p2/2BBbkn1/1NQrqp2/pR6/BBb2q1P/1K2Rr2/3B1BQ1 w - - 0 1 illegal: No possible last move, all moves rejected
n3N2b/4p1R1/1B2pq2/PbB1q2k/3p2NB/N2P3p/2bn2BK/NQ1RNr2 w - - 0 1 legal: proof: e4 b5 c4 g5 h4 a5 hxg5 a4 e5 a3 e6 fxe6 bxa3 b4 a4 Ra6 a5 Rb6 Bb2 Bb7 Bc1 Rb5 cxb5 Bc8 f4 Kf7 Kf2 Kg6 Kg3 d5 a4 h5 d3 c5 f5+ Kf7 b6 h4+ Kh2 d4 g4 h3 g6+ Kg7 a6 c4 g5 b3 a5 c3 a7 b2 a8N c2 b7 Nc6 b8B Rh7 f6+ Kh8 f7 Kg7 Na3 b1B Ba7 Nh6 Nf3 Nb4 Ne1 Qd7 Nb6 Qa4 Nd5 Nc6 Nb4 Ba2 Bg2 Ba6 Bb6 Nb8 Rg1 Bb3 Bf4 c1Q Nbc2 Qd2 Bd6 Ng8 Bdc5 Qb5 Rb1 Rh5 Na1 Nd7 Qc2 Ba4 Rd1 Ngf6 Qb3 Qf2 Qb1 Kh8 g7+ Kh7 g8N Kg6 Nh6 Bg7 f8B Ne4 Ng4 Bh8 Bh6 Nd2 Bg7 Bc2 Be5 Qf6 Bg3 Rh6 Bh4 Kh5 g6 Rh7 g7 Rh6 Ba7 Nb6 g8N Na8 Bab6 Rh7 N8h6 Rg7 Nf5 Rf7 Nd6 Rf8 Bb4 Qd5 Ne8 Bb5 B4c5 Qh6 Be4 Rf1 Rg3 Qg6 Bg2 Qde4 Ne3 Qf7 Rg7 Qf6 Ng4 Qee5+
4BB2/3q1qb1/R2p1p1n/2b1P1k1/NB1rR2R/Q1RN1p1K/1p1Pr3/3bB1B1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 b4 e5 bxa5 exf4 c3 Nc6 c4 b4 Bb2 Nd4 Bc1 Nb5 cxb5 Rh6 Qa4 Rh7 Qd1 Rh8 Kf2 Ke7 Kg2 Kf6 a4 c5 h4 g5 e4 f3+ Kh3 b3 h6 c4 a6 c3 h7 c2 h5 Bg7 b6 Bf8 h6 Qe7 a7 Qe5 b7 Qd6 b8B Be7 a5 Bd8 a6 Qf8 Ra4 Qg7 Bb5 Qg6 Ne2 Bb7 Nbc3 Bb6 Bg3 d6 Be8 Bd5 Nf4 Rd8 a8R Bc4 a7 Bg1 Rc8 Bd4 a8R Be2 Ba3 c1Q Be1 b2 Qb3 Bd1 R8a6 Rd7 Rh2 Re7 Bb4 Re6 Qa3 g4+ Kg3 Qb1 Nd3 Kg5 Rh4 Bg7 Kh2 g3+ Kh3 g2 Rcc6 Nf6 Rc8 Rg8 h8B g1B h7 Ng4 Rcc6 Nh6 Rc4 Bf6 Bg7 Bc5 Bf8 Bg7 h8B Qa2 Ne5 Qh7 Nd3 Bgd4 Be5 Rh8 B5g3 Bg7 Bgf2 f6 Bd4 Re5 Bg1 Rd5 e5 Rd4 Rc6 Rg8 Raa6 Rh8 Na4 Qf5+ Kh2 Qd7 Rc3 Qaf7 Rc7 Bb6 R7c4 Bc5 Kg3 Ng8 Re4 Rh2 Rh4 Re2 Re4 Qc6 Kh3 Nh6 Rh4 Rd5 Rcf4 Rd4 Re4 Qcd7+
q1r2q1B/pB1R4/1BrN2N1/P3pBN1/2p3pn/3p2N1/1P1KRQ1N/1kbn4 w - - 0 1 illegal: No possible last move, all moves rejected
K2b3R/2rNrb2/3R1qN1/pn5R/R1pRn3/PkPbN1BB/3r3q/3NqQ2 w - - 0 1 illegal: No proof kernel
Nq5Q/np6/rPp4N/3R3B/r1PnNbRr/1R1Rq2k/1B4q1/NRK2r1b w - - 0 1 illegal: No possible last move
8/Br3Bb1/nR4NR/p3pq1b/1nqBPr1B/1Q1N3N/P2Nn1bk/N1K2n2 w - - 0 1 illegal: No proof kernel
1B2b1Rn/2p2nNq/3r2qp/1BnBBR1P/2R5/2PQn3/2bR1KrB/b1k2N2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 b4 Kf7 f4 Ke6 h4 Kf5 h5 Ke4 b6 d5 e6 a5 e7 g5 e8R+ Qe7 e3 d4 f5 a4 b7 d3 b5 g3 f6 a3 f7 g4 b6 d2+ Ke2 h6 Nf3 a2 Nh4 g2 Kf2 g1N Rd8 Bd7 Nf5 Na6 b8B Nc5 b7 Nf3 Bb2 Ng5 Ng7 Ra6 Bb5 Rd6 Rf1 Be8 Be5 Rh7 Qe2 d1B c3 Bc2 Qd2 Qd7 Ba7 Ne7 b8B Ng6 Qe2 Be7 f8R Nh8 Rg8 Ngf7 Bc4 Bg5 Be6 Qe7 Qd1 Qd7 Nd2+ Kd3 e4 Be7 Rb1 a1N Bd5 Bf8 Rb4 g3+ Kg2 Qf5 Rc4 Qg6 Kf3 g2 Kf2 Be7 Bh2 Bf8 e5 g1Q+ Ke1 Qd4 Rf5 Qe4+ Kf2 Be7 Qb1 Bg5 Nf1 Bc1 e6 Bb2 Ng3 Kd2 e7 Qd3 Qf1 Qe4 Qd3+ Kc1 Bb6 Rd7 Nf1 Rd6 Ne6 Rg7 Be5 Bea4 e8B Qh7 Bb5 Qg6 Ba6 Be8 Bb5 Qh7 B6a7 Rg1 Bh2 Qg4 Ng7 Qgg6 Ke2 Rg2+ Ke1 Na4 Bd4 Nc5 Bf6 Nab3 Bd4 Ba1 Bde5 Nd2 Rd7 Nde4 Rd8 Nf6 Rd7 Ng4 Rd8 Rg3 Ke2 Ne3 Kf2 Rg4 Bb7 Re6 Qe2 Kb2 Rd2 Kc1 Bd5 Rd6 Qd3 Rg2+
2R1qb1r/1p1R1R1b/2n4p/3r1b1q/1kN1nBNq/5q1P/1PRR3K/2Q1RB1Q w - - 0 1 illegal: No proof kernel
2Rr3N/r2pr2q/K2N2nk/Bp2r3/1QBPr2B/1bb4B/1P1n4/R1B1rBQ1 w - - 0 1 illegal: No proof kernel
3N4/pbBr2N1/P1Q1n1K1/2RB1qp1/1Nn1RbN1/2Rr3p/R2qR2P/1k4qn w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f5 g4 fxg4 bxc5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 a4 g5 c4 b5 f4 h4 a5 g3 f5+ Ke7 f6+ Ke6 c6 g2 c7 b4 a6 h3 c5 b3 c6 b2 f7 d6 Na3 b1Q+ Qc2 Nh6 Nf3 g1Q Bg2 Qbb6 Ra2 Qb7 Bf4 Bd7 c8R Qb5 c7 Ng4 Qc6 Ne3 Nc2 Rh7 Nb4 Nc4 e3 Be7 Bg3 Be8 Re2 Nd7 f8N+ Kf7 Kf5 d5 e4 d4 Ne6 d3 Ra2 Nc5 Bf4 Qd6 Nd8+ Kg7 e6 d2 e5 d1N Bg3 Nf2 Bf4 Bf6 e7 Qd2 e6 Be5 Bg3 Bd7 e8R Bf4 Ne5 Rb8 Ng4 Rb6 Ra8 Bc8 Bd5 Bb7 e7 Ne6 c8R Qa5 Rc7 Qc5 Rac8 Qa5 Qb5 Rd6 Rc5 Rd7 Qc6 Qb5 Bg2 Rd3 Bd5 Qa5 Nf6 Kh6 Ng4+ Kh5 Rf8 Qb5 e8N Rd7 Rg8 Qgd1 Rf1 Nh1 Rf2 Qg1 Re2 Qa5 Ne3 Kh6 Ng7 Kh7 Re8 Kh6 Kg4 Kg6 Re7 Kf6 Kh5 Ke5 Ng4+ Kd4 Kg6 Kc3 Re8 Nc7 R8e4 Ne6 Ra3+ Kb2 Ra2+ Kb1 Rc7 Nb2 Rc3 Nc4 Rc8 Be3 Bc7 Bf4 Rb8 Bc8 Rb5 Bb7 Rc5 Qb6 Rca5 Qbc5 Rb5 Qf8 Rc5 Qf5+
qbN3nr/q2R2bp/1QrK3k/2pBB3/bBPBp1q1/2R4B/1N2P1Rn/1R6 w - - 0 1 illegal: No proof kernel
6qN/1Kqq1bpB/R1nR2R1/b1Q2rr1/R6n/1pB2nPk/1PN4p/1B2R1B1 w - - 0 1 illegal: No possible last move, all moves rejected
3b3n/p3R1rR/2pBq1kB/5q1R/b1Bpr3/P1P1B3/RQ1bN1N1/1q2KB1n w - - 0 1 illegal: No proof kernel
k2Nb1r1/n1r1q1rr/2q2Rpb/1N5n/NQ1NpK1R/Np2P3/B1Q3PB/6N1 w - - 0 1 illegal: No possible last move
2NR4/BN1Q4/P1q4k/3npR1N/b3B3/BPp1qp2/1Nn4K/1B2Rrb1 w - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 h5 gxh5 b5 Na3 b4 Nb1 b3 axb3 Bb7 Ra4 Ba6 Ra1 Bc8 f4 a4 f5 a3 bxa3 Qd7 Ra2 Qd6 Ra1 Qd8 Bb2 e5 Bc1 Ra6 Bg2 Rah6 Bf1 Re6 fxe6 Ba6 Nh3 Bc4 Ng1 Bxe2 Kf2 g5 Kg3 c5 h4 f5 d4 f4+ Kh2 f3 h6 c4 h7 g4 a4 c3 e7 Kf7 e8B+ Kg7 d6 Bc4 d7 Be2 a5 Qe7 d8N Nh6 h5 Ba6 d5 Bc4 d6 Bd5 d7 Be6 a6 Bd5 Na3 Qd6 Bg6 Bc6 Bb1 Qd4 Nc4 Qd3 Ne2 Bb5 Nb2 Qg6 Nb7 Qc6 d8B Qb6 Ng3 Qd6 Bb6 Qc6 Bfd3 Nf5 Be4 Ne3 Ba7 Ba4 Qd7+ Kh6 Re1 Rg8 h8N Bc5 Ng6 Rg7 Rd1 Rh7 Rd2 Nc2 Ne7 Bf2 Nc8 Rg7 Nd1 Rh7 Ba3 Rg7 Nb2 Rg6 Qe7 Nd7 Rd4 Nb6 Rd8 Rd6 Qd7 Rd1 Rf8 Nd5 Rf4 Kg5 h6 Rf1 h7 Kh6 Nh5 g3+ Kh3 g2 h8R+ Kg5 Rd8 g1Q Rff8 Kh6 Rf5 Qg5 Kh2 Qe3 Ba2 Qcc5 Re1 Qc6 Bb1 Bg1+
1k2Nr1B/3q2B1/n6r/3bN2N/2nb1q1r/1qqRQ2R/P1RB1N1P/2K1B3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 g4 h5 f4 g6 g5 Bg7 Be2 Bh6 fxg6 Bf8 Bg4 hxg4 f5 Qd7 Qb3 Qd6 Qd1 Qd8 d4 Kd7 Kd2 e5 g7 c5 a6 Kc7 f6 b5 g6 g3 f7 g2 a7 e4 d6+ Kb7 d5 c4 d7 b4 d6 b3 Nf3 g1Q Nc3 b2 Qb3+ Qdb6 d8B b1R d7 Ne7 g8N Qf1 g7 Rh7 Nd1 Qg2+ Nf2 Nd5 Qe3 Na6 Rd1 Qg4 Nf6 Qb3 g8N Bg7 f8B Nb6 Ne5 Rh4 Ne8 Qh3 Bf6 c3+ Ke1 c2 Kd2 Qg4 d8B Be6 Bde7 Bh8 B8g7 Bd5 Bb4 Qd7 Ba5 Rb8 a8R Rc8 Ra7+ Kb8 Rc7 Rb2 Rc3 Rc6 Rd3 Re6 Rg1 Rc6 Rg3 Nc4+ Ke1 Re6 Bcd2 c1Q+ Ke2 Qcc3 Rc1 Rb1 Rc2 Rf1 Rh3 Qcb4 Be7 Reh6 Ngf6 Q4c3 Nh5 Qcb4 Nd1 Rf8 Nf2 Qbd6 Kd1 Qf6 Qc5 e3 Kc1 e2 Qe3 Qf4 Bef6 e1Q+ Nd1 Qeg3 Nf2 Qd4 Be1 Qgf4 Bad2 Qdc3 Neg4 Rg6 Bh6 Bg7 Bd4 Rd6 Be5 Bf6 Bd4 Be7 Bh8 Bf6 B6g7 Bd4 Ne5 Rh6
2b2NB1/3bnR1r/4r2k/2QP2qP/1rr2n1N/KR2q3/B2RbRB1/3NN3 w - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 h5 axb5 h4 d6 h3 gxh3 Bf5 h4 Bh3 h5 Bc8 f4 Be7 e4 Bf5 d5 Bh7 Be3 Nc6 Bd4 exd4 e5 Bg5 Qc2 Bf5 Qd1 Bc8 e6 Nb8 Kd2 Bf6 Ke1 Be5 fxe5 Rh7 Qf3 Rh6 Qd1 Rh8 Kd2 Kf8 Kc1 c5 h4 g5 b4 Kg7 Kb2 a5 b6 f5 b7 g4 e7 d3 e8B d2 b5 a4 h6+ Kh7 e6 g3 e7 g2 h5 c4 b6 f4 d7 c3+ Ka3 c2 Bf7 c1R e8B f3 Nc3 f2 Nf3 g1Q Ne1 Qh2 Bg2 f1B Qc2+ Bd3 Nd1 Na6 b8R Nb4 b7 Ne7 Rf1 Qhc7 Rf2 Bf5 Qc5 Nd3 Ra2 Qe5 Rb2 Qb6 d8N Bfd7 Ne6 Ra6 Ra8 Qf5 b8R Qg5 Ra7 Rc4 Rc7 Qa7 R8b3 Nf4 Rc2 Rb6 Ra2 Rbb4 Bg6+ Kg8 Nf8 Rh7 Bb1 Qb6 Ra7 Qe6 Rab2 Qe3 Ba2 Kh8 Rc7 Kg8 Bf7+ Kh8 Nc3 d1B Rbd2 Be2 Bg8 Qf6 Nd1 Qg5 Kb2 a3+ Kb1 Rf7 h7 Kg7 h8N Kh6 Nhg6 Rh7 Ka1 Qgg3 Nh4 Qg5 Bb1 a2 Kb2 a1R Ba2 Rac1 Ka3 Re4 Rb7 Rcc4 Ra7 Re6 Rc7 Nf5 Rb7 Bc6 Re7 B6d7 Rf7 Ne7
R2N2NR/2RRN3/bq1P4/Pn2r2B/1bp4n/B1k2q2/B3r2K/3Q1qNb w - - 0 1 legal: proof: c4 a5 e4 h5 g4 d5 cxd5 f5 gxh5 e5 exf5 e4 b4 axb4 d3 Be7 dxe4 Bc5 e5 Bf8 a4 Kf7 h4 b5 f4 c5 Kf2 g5 Kg3 b3 e6+ Kf6 h6 b4 e7 g4 e8B b2 a5 b3 h7 Na6 d6 Ne7 h5 Ng6 h6 Nc7 Kh2 Qe7 Nc3 b1B Bc4 b2 Ba2 Rg8 h8R Qe4 h7 Nh4 Bh5 Rg5 Rg8 Bd3 h8R b1Q Ba3 Qb6 Rc1 Bca6 Rh7 Qe3 Rd7 Bg7 Rh8 Ra7 Ra8 Nb5 Rc2 Bh8 Rc1 Be4 Rc2 Rg7 Rc1 Re7 Nd5+ Kg7 Nf6 Qf3 Ng8 g3+ Kh3 g2+ Kh2 Rc7 Rc4 Rc8 Rc2 Re8 f6+ Kf8 f7 Kg7 f5 Re5 f8N+ R8e7 Nh6 Kf6 Ne6 Beb7 Nd8 c4 Rb2 Re2 Ng8+ Ke5 f6 Ke4 f7 Bc3 f8N Bb4 Rc7 Re5 Ng6 Ke3 N6e7 Be4 Qb1 Kd4 Qd1+ Kc3 Rd7 Rf2 Re2 Bc6 Re4 Re2 Rg4 Bd5 Rg7 Rc2 Rg5 Qf4+ Kh3 Nf5 Be2 Re3+ Nf3 g1Q Rh2 Qe1 Rh5 Re6 Ng1 Bh1 Bg4 Rce2 Bf3 Nfd4 Rc5 R6e5 Rcc7 Qf7 Bg4 Qef1+ Kg3 Qf8 Rh8 Nf3 Bh5 Qf6 Rh7 Nh4 Rh8 Ng2 Kh3 Q6f3+ Kh2 Nh4+
3n2b1/1B2b2N/K4q1P/PN1n4/1B3rQR/pN2R2r/2RB2rR/1kr1N2n w - - 0 1 legal: proof: b4 a5 g4 f5 c4 d5 cxd5 b5 e4 h5 gxh5 Nd7 exf5 Nb8 a4 bxa4 bxa5 Bb7 Bc4 Ba6 Bf1 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Kd4 f4 g5 h4 e5 d6 c5 h6 a3 f6 g4 d7 c4 f5 e4 h5 e3 h7 c3 f7 g3 f6 e2 Bg2 Kd3 Bb7 e1N Rh2 c2 Nf3 g2 Nc3 g1R Ra2 Ng2 Ne1+ Kd4 Qg4+ Ke5 d4+ Kd6 d5 Ke5 d6 Ne3 Bd2 c1R Rc2 Be7 f8N Nf1 f7 Nf6 Ne6 Rg3 f8N Rg2 Nd4 Ng3 Nb3 Nc6 Rh4 Rb8 Ka6 Nd5 Nb5 Nh1 Bb4 Qe8 d8B Be6 d7 Qf7 Bb6 Nd8 Be3 Qf6 Bed2 Rc8 Rh2 Rc4 Rh4 Rf4 h6 Rg8 h8R Ke4 Nh7 Rg5 Rh2 Rh5 Rg8 Rh3 Re8 Nc6 d8R Bg8 Rd7 Nd8+ Rd6 Qe5 Rg6 Qc3 Rg5 Qe5 Rh5 Qb2 Nf3 Kd3 Rh4 Qf6+ Rc6 Bc5 Re3+ Kc2 Ne1+ Kb1 Qg6+ Qf5 Qg4 Be7 Rc2 Qf6+
2BnnbK1/7B/Pp1q3k/1B4R1/b2N1RPN/bbN2N1r/1r1n4/R4RQ1 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 c4 f5 exf5 c5 cxd5 g4 Ba3 g3 Bb4 cxb4 hxg3 Kd7 g4 Ke8 g5 Ra6 Be2 Ra7 Bf1 Ra8 Ke2 Kf7 Kd3 Kg7 Ke4 h5 Ke5 b6 g4 h4 f4 h3 d4 h2 a4 e6 a6 b3 a5 b2 d6 Rh7 g6 Rh6 a7 Qd7 a6 Bb7 f6+ Kh8 g7+ Kh7 f7 Bc8 d5 Rh3 f5 Kh6 f6 Rg3 Nf3 Qa4 d7 Rh3 d8N Bb7 d6 Bc8 d7 Qc4 Nc3 b1N Nc6 Qd3 d8R Bd7 Ncd4 Ba4 Rd5 Nd2 Qb1 Ba3 f8N Bb3 f7 Nf6 g8B Ne8 Rg1 h1B Bh7 Bg2 Ng6 Nc6+ Kf4 Rb8 f8R Rc8 a8B Nd8 Ke5 Rc5 Be2 Rb5 Ngh4 Ba4 Rf5 Rb2 Rf4 Qg6 Bd3 Bf1 Bb5 Bc4 Bb7 Bcb3 Bc8 Qd3 Re4 Bf8 Rf1 Ba3 Kf4 e5+ Kf5 Bf8 Ne1 Qg3 Ref4 e4 Nef3 e3 Qe1 e2 Qd1 Nc7 Kf6 e1B Rg5 Bf2 Qe1 Be3 Qf2 Ba3 Qg1 Bf2 Ne6 Bfc5 Ned4 Bf8 Rfc1 Nde6 Kf7 Ne8 Kg8 Qh2 Rf1 Qg3 Rff5 Qd6 Rf4 Nd8+
B1K2R2/QNP3b1/qrB5/4R2B/nr5q/k1p2PNR/2bN4/rr1NR1n1 w - - 0 1 legal: proof: e4 f5 exf5 g5 b4 b5 h4 Bg7 hxg5 Bc3 a4 Bg7 axb5 Bf8 b6 d6 c4 Be6 c5 Bf7 b5 Be6 Ba3 Bd7 bxc7 Be6 c6 Bc8 Bc5 dxc5 Ke2 h5 Kf3 e5 Ke4 Ke7 g4 Kd6 d4 a5 f6 a4 f7 c4 f3 a3 g6 h4 g5 h3 g7 a2 g6 h2 d5 Kc5 b6 Kb4 b7 c3 d6 Ra6 Kd5 e4 d7 e3 Ke6 e2 Nh3 Qg5 Qa4+ Kc5 Nd2 Qg1 Nf2 Qg5 Nd1 Nh6 g8N Qg3 g7 Ra5 Ne7 Rb5 g8B Rb4 Nf5 Qh4 Ng3 Bg7 f8R Nf5 Bf7 Na6 b8R e1R+ Be2 Rg1 Bb5 Rh6+ Bg6 Bb7 d8N Nd4+ Kd7 Ne2 c8B Re1 c7 Be4 Bf7 Bc2 Bh5 Ng1 Bb7 Rb6 Kc8 Qc4 Rc1 a1R B5c6 Rf1 Ba8 Qe2 Nde4+ Kc4 Rf5 Nc5 Qa7 Kb3 Re5 Na4 Nd2+ Ka3 Nb7 Qd3 Nf2 Rab1 Rce1 Qa6 Nd1 Ne2 Rg1 h1Q Rg2 Qh4 Rh2 Ng1 Rh3 Rf2 Kd7 Rg2 Rf8 Ra1 Kc8 Rbb1 Nh1 Rg4 Ng3 Rgb4
1kq3b1/2R1b2P/rK6/BQB5/PR2NR2/r2R4/nr2NBqp/3bqN1B w - - 0 1 legal: proof: c4 a5 g4 h5 b4 axb4 h4 d5 cxd5 f5 e4 g5 exf5 Nd7 hxg5 h4 Qe2 Ndf6 Qd1 Nh5 gxh5 Bg7 Rh2 Bh6 Rh1 Bf8 Ke2 Kd7 Kd3 b5 Kd4 h3 Kc5 e5+ d6 c6 f4 h2 d4 b3 a4 b2 d5 b4 h6 b3 g6 e4 g7 e3 h7 e2 f6 e1R f7 Qe7 f5 Re3 f6 Rf3 Qd3 Ba6 Bg2 Kc8 Qb5 Rc3+ Kb6 c5 d7+ Kb8 d8B c4 d6 Qe2 d7 Be7 Nd2 b1Q f8B b2 f7 Nf6 g8N Ra3 Nf1 c3 Be3 c2 Bf2 Ne4 Nf6 Qbe1 Rc1 Nc3 Ne4 b1B Bf3 Q2d2 Ne2 Ba2 Rg1 Bb3 Bh1 Na2 Rg4 Bb7 Rf4 B7d5 Rb1 c1Q Rb2 Bg5 B8c5 Be7 f8R Bd1 Rb4 Bg8 R8f6 Qdb2 Rh6 Qg7 Rc6 Qg2 Rc7 Bd6 Bg5 Be7 Bf6 Qcc3 B6h4 Qch3 d8R+ Qc8 Rd3 Ra5 Bf6 Ra7 Bc3 Ra5 Qd7 Ra6+ Kb5 Bd5 Rbd4 Rd8 Rdf3 Nc1 Ba5 Bg8 Rb4 Na2 Qd3 Ra7 Kb6 Rd4 Qc4 Rd2 Rd3 Rb2 Qb5 Ra6+
BQR3qb/R1R1q1N1/n1K1nBN1/r6P/N1k1p3/B3rr2/rB5P/5q1N w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 b4 gxh5 b3 Qg4 f6 Qg5 Bf5 exf5 fxg5 axb3 Kd7 b4 Ke8 b5 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Kf7 Kf3 c5 Ke4 e5 d4 a5 b4 g6 f4 a4 b6 a3 b7 g4 b5 g3 f6 c4 b6 c3 d6 Ke6 d5+ Kd7 f5 g2 f7 c2 f6 a2 Nh3 g1Q Bg2 g5 Bb2 c1Q Nc3 g4 Na4 g3 Nf2 Na6 b8R Nh6 b7 Qc5 Rc8 Qcc7 b8Q Bg7 f8B Nf5 f7 Nd4 Bf3 Qg2 Rhc1 Qf1 Nh1 g2 Be7 g1R f8N+ Ke8 d7+ Kf7 d6 Rg3 Kd5 Ne6 Bg2 Re3 Ng6 Qg8 d8B Rh7 d7 Bh8 Bea3 Ra7 Rab1 a1R Bf6 Ra2 Ra1 Qcd8 R1c7 Qe7 Kc6 Rg7 Nf8 Rgg3 Ng6 Rh3 Bd5 e4 d8N+ Ke8 Nb7+ Kf7 Nbc5 Rhf3 Kb6 Nb4 Ba8 Ra5 Kb7 Na6 Kc6 Ng5 Nb3 Ne6 Nd4 Nf4 Nf5 Ke6 Kb7 Kd5 Ng7 Nc5+ Kb6+ Kc4 Kc6 Na6 Rd1 Rh3 Rdd7 Ne6 Ra7 Rhg3 Rdc7 Rgf3
BBN1rRB1/4r3/3R1P1K/3N1Ppb/nb6/1Q2N1Rr/q1N1k3/1R2bq1b w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 exf5 g6 a4 Na6 axb5 Qd6 h4 Qh2 h5 Nb8 Ke2 Nc6 Ke1 Ne5 g3 g5 g4 Ng6 hxg6 Qg2 Ra3 Qxg4 Ra1 Qg2 Ke2 Kd7 b4 Kd6 d4 c5 g7 e5 b6 a5 b7 h5 b8N c4 b5 a4 f6 h4 b6 c3 b7 e4 Nh3 e3 Ra3 c2 Nc3 Bf5 Nf4 h3 Nd7 h2 b8R Be6 Nb6 Qh3 Nc8+ Kd7 d6 Kc6 d7 Bd5 d8N+ Kd7 Bg2 Bb3 d5 Bb4 d6 Ne7 g8B Nd5 Nde6 Kc6 Nd4+ Kc5 d7 Nb6 d8R Bf7 Nfd5 Kc4 f4 Bh5+ Bf3 Ra7 f5 Re7 Rd6 Rhh7 Bb2 c1R Nc2 Ra1 Re1 h1B Qb1 Re8 Nd1 Rhe7 Be5 Ra2 Rd3 a3 Bg3 Na4 Qb3+ Kc5 Bf4 Rb2 Rg1 a2 Rg3 a1Q Rd4 Ba3 Rdb4 Qa2 R4b6 Bb4 R6b7 Re6 Rf7 R6e7 Rf8 Bf7 Bg2 Bg6 Kf3 e2 N1e3 e1B Na1 Rd2 Nac2 Rd3 Be5 Qh2 Kg4 Qg1 Bf4 Qf1 Rb7 Bh7 Kh5 Bg6+ Kh6 Bh5 Re6 Rc3 Bb8 Rd3 Rd6 Rc3 Na1 Kd4 Nac2+ Kd3 Qa3 Ba5 Rb1 Ke2 Qb3 Rd3 Ndb6 Bab4 Ba8 Rd4 Nbd5 Rh4 Nc4 Rh2 N4e3 Rh3
3rB3/prN1NRPk/PQn3b1/n4bBK/3N2nb/2R2R2/7n/1N3BRr w - - 0 1 illegal: No possible last move
3B4/r2RP3/3pq1b1/1q1B1RRB/r2qbQ1N/3B2b1/K2Nb1P1/b2kNN2 w - - 0 1 illegal: No possible last move, all moves rejected
1n1rN3/1BK2rB1/q1B2RNp/2Rb3P/3rRQ2/n1qN2p1/bBk3P1/5R2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 a5 b4 axb4 Ba3 e6 Bc1 Bc5 Ba3 Bd4 Bc1 Ba7 b6 Ne7 bxa7 Ng8 Ke2 Kf7 Kd3 Kf6 Kd4 g5 Kc5 Ke5 d4+ Ke4 h4 c6 f4 e5 d6 g4 f6 b3 h5 g3 f5 b2 d7 h6 Kd6 c5 d5 c4 f7 c3 f8B c2 f6 Na6 f7 Qg5 d8R Rh7 Qg4+ Qf4 Rh4 Nf6 Na3 b1B Nc4 Bf5 Nf3 Nb4 Kc7 Ng8 d6 Nf6 d7 Be6 Bb2 c1Q Ne1 Nc2 Nd6+ Ke3 Ra5 Kd2 Ba6 e4 Bb7 e3 Rc5 Qf1 Ne8 e2 Rh1 Na3 Qf4+ Kd1 Bc6 Rb8 a8B Bba2 Bab7 Qc3 Rg1 Ra8 Rh1 Ra4 Ra8 Rb4 d8R+ Nd7 Ra4 Rg7 Kd6 Nb8 Kc7+ Qd4 Rdd5 Rh7 Rf5 Qc3 Rf6 Rg7 Nf3 e1R Ne5 Qa6 Rf1 Rc4 Rb4 Kc2 Ra4 Ree4 Nd3 Re5 Rb4 Rd5 Ra4 Rd8 Rb4 Rg8 Bg7 Bd5 f8N Re4 Ng6 Rf8 Rbb5 Ra4 Rc4 Rb4 Re4 Rd4 Rc5 Rf7+
B4Nrr/Rp1NNn2/P1q2rP1/rRBbBR2/2bp2K1/nN1Q4/6k1/3B4 w - - 0 1 legal: proof: f4 g5 fxg5 f5 g6 c5 d4 cxd4 g7 a5 h4 f4 b4 f3 bxa5 e6 e4 Nf6 g4 Nh5 g5 f2+ Kd2 Nf6 g6 Be7 Ke2 Ng8 Kd2 Bg5+ hxg5 Qb6 Bg2 f1N+ Ke1 Ng3 Bf1 Nf5 exf5 Qd8 Ke2 Ke7 Kf3 Kd6 c4 Ke5 a4 h5 a6 d5 c5 h4 f6 h3 c6 d3 a7 d2 c7 d4 f7 h2 f8B Nc6 a5 Nh6 g8N Nb8 g7 Qe8 g6 Bd7 c8N Nc6 Nge7 Rb8 g8R Nb4 a8B Nf7 Ne2 Bb5 Nf4 Bc4 Kg4 Ke4 Be2 e5 Nb6 Qc6 Ne6 Nc2 Nd7 Na3 Bg7 Ke3 Rf8 e4 Be5 Kf2 Rf1+ Kg2 Rf5 h1B Qb3 d1R Qd3 e3 Nd2 Rc8 Nb3 Rd2 Bd1 e2 Re8 e1R Nef8 Rf1 Ra2 Nb5 Ba3 Rf3 Bc5 Na3 Rg5 Rf6 Rf5 Rb8 Ra1 Ra2 Rc8 Qb5 Rc6 Rg8 Ra6 Qc6 Ra7 Rh8 a6 Rd8 Rb1 Rb8 Ne6 Rbg8 Rb2+ Nc2 Nef8 Ra5 Nd2 Na3 Rb5 Kg1 Nb3 Bhd5 Bb4 Kh1 Bc5 Kg2
3BkN1r/b5R1/1RRQ3r/3p1bbp/1PNRN1rr/1KN1PB2/2n3r1/B7 w - - 0 1 legal: proof: d4 b5 h4 e5 g4 g5 a4 c5 axb5 f5 f4 Nc6 Ra2 Nce7 Ra1 cxd4 fxe5 f4 Ra6 Nf5 gxf5 g4 Ra1 Qg5 hxg5 Bc5 Ra6 Bd6 Ra1 Bf8 Kd2 h5 c4 a5 Kc2 f3 b4 d3+ Kb3 f2 c5 d2 e6 g3 e7 d6 c6 g2 g6 Rh7 f6 Bf5 g7 Bg6 b6 Ra7 c7 Rh8 c8R+ Kd7 e8N Bf5 e3 Rc7 b7 Rc2 b8B Ne7 g8R Bh6 f7 Nc6 Na3 Bg5 Be2 f1R Nc4 Rf4 Bb2 Rh4 f8N+ Ke7 Bf3 a4+ Ka3 Rh6 Nf6 Nd4 Ne2 g1R Bc7 Rgg4 Ne4 Rh8 Ka2 a3 Bd8+ Ke8 N2c3 Rh6 Rc6 d5 Qe2 d1R Qh2 Rdd2 Rg7 Rdg2 Qd6 Rcf2 Rad1 Nc2 Kb3 a2 Rb6 a1B Rd4 Rf1 Bc1 Bb2 Bd2 Ra1 Rc1 Ra7 Be1 Re7 Bg3 Ree6 Be5 Rh8 Ra1 Reh6 Raa6 Bc1 Bef6 Bd2 Rc6 Be1 Rab6 Bg3 Qc5 Bb8 Qd6 Ba7 Na4 Na3 Rd2 Rh3 Ba1 Nc2 Nac3 Rh1 Rd4 Rhh4
1B3nb1/1bq1PR1N/2B1pBk1/4pR1R/4Nn1q/b4P1Q/RKbB4/4n2N w - - 0 1 legal: proof: b4 g5 h4 b5 hxg5 f6 c4 Bh6 a4 Bg7 axb5 Na6 e4 Bf8 e5 fxe5 b6 Nb8 b7 Bh6 Nc3 Bg7 Nb1 Bf8 d4 h5 d5 a5 b5 e6 d6 a4 c5 Kf7 Nc3 Ra6 Nb1 Rb6 cxb6 Rh7 Qd4 Kg6 Qd1 Re7 dxe7 Kf7 Kd2 d5 Kc3 c5 g4 c4 g6+ Kf6 g5+ Kg7 f3 a3 Nd2 h4 Ne2 a2 Kb2 h3 Ne4 d4 Bd2 d3 N2g3 Nd7 b8B h2 b7 Qc7 b6 Ngf6 Ba7 Nh5 b8R Nf4 Qe2 Ba6 Qg2 Bb7 Qh3 c3+ Kc1 c2 Kb2 Bc6 b7 c1N Bae3 Bd5 Rc8 Bc6 b8B Bb7 Be1 d2 Bb5 d1B B1d2 Bc2 Bc6 Ng2 Re8 Ne2 Rd8 Ne1 Bf4 Kg8 g7 Kf7 g8N Kg6 Ngf6 Bh6 Nh7 Nf8 Bfe3 Nf4 Bf2 Kf7 g6+ Kg7 Rf1 Bg5 Nh1 Bh6 Bh4 Bg5 Nhf2 h1B Rg1 Kh6 g7 Bg2 g8R Bf1 Rh1 Bfd3 Rg7 Kh5 Rf7 Kg6 Rh2 Bh6 Nh1 Bg5 Rb1 Bh6 Bf6 a1Q+ Kc1 Qa7 Rb2 Qf2 Ra2 Qh4 Kb2 Bb5 Bd5 Be8 Bc6 Bg5 Bg7 Bh6 Rf5 Bf7 Bf6 Bg8 Rc8 Nd7 Rf8 Bg5 Rf7 Nf8 Ra6 Nfg2 Ra1 Be3 Ra8 Bc5 Ra2 Nf4 Qg3+ Qg5 Rh5 Bb4 Qh2 Qh4 Qh3 Ba3+
3R1n2/1NN1Rpbn/1b1p1pPk/1R4Rb/2Q5/4N1qr/BN2B1P1/B2K2r1 w - - 0 1 illegal: No possible last move, all moves rejected
3k2B1/2N1RrB1/PpQ2rp1/3bRp1B/q1r5/K1bN1Bnb/PN1N2R1/8 w - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e6 b4 Ne7 bxa5 Ng8 f5 exf5 g3 Qd7 g4 Qd8 g5 f6 gxf6 Qd6 Ba3 Qd7 Bc1 Qd8 h4 Qd6 h5 Qd7 h6 Qd8 Nf3 g6 Rh5 Nc6 Ng1 Nd4 Rh4 Ne6 Rh1 Ng7 hxg7 Be6 Rh3 Bd7 Rh1 Bc8 d4 h5 Kd2 c5 Kc3 c4 Kb2 b6 e4 h4 d6 c3+ Ka3 c2 e5 h3 a6 h2 e6 Be7 d5 Rh4 Nf3 Bd7 Rg1 h1B Nbd2 Ba4 Ne1 Re4 Bb2 c1R Be2 Rec4 Nd3 Rc7 Rg2 R7c4 Qc2 Qd7 f7+ Kd8 f8N Rh4 Bh5 Qe8 Nd7 Rb8 N7c5 Qb5 d7 Bf8 e7+ Kc7 d8N Rg4 e8B Rd1 Bc6 Nf6 g8B Ne4 Bg7 Bb3 Nb2 Ng3 d6+ Kc8 Qc1 Rb7 Bf3 Rf7 Ncd3+ Rc4 Ne6 Re1 Nc7 Re6 Qc2 Kd8 Re1 Ref6 Re7 Qc6 d7 Qe4 Re2 Bg2 Re3 Qg4 Re5 Bh3 Qc1 Re4 Qc2 Bd5 Qc6 Rc4 Nb1 Rc2 Nb4 Be4 R7e6 Bc5 Re7 Bd4 Rc5 Rc1 Rc2 Qf4 N4d3 Qh4 Re5 Bd5 Rg2 Rc5 Nd2 Bc3 Ne6+ Ke7 d8R Qe4 Rd7+ Ke8 Nc1 Qc2 Ncd3 Rc4 Nef4+ Be6 Re7+ Kd8 Nd5 Qd1 Nc7 Bd5 Ne4 Qc2 Nd2 Qa4+
1n1RK3/1pbB4/1n1N4/R3rr2/p1B3b1/1B1N2bp/P2nNP1k/RN2QR2 w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 g5 c4 Qd6 cxd5 Qd8 h4 Na6 h5 Nb8 g4 Bd7 h6 Be6 Bb2 Nc6 Be5 Qc8 Bg3 Nb8 Bh4 gxh4 g5 Qd8 g6 Bc8 Qb3 Qd6 Qf3 Qf6 Qd1 Qg7 hxg7 Kd8 Bh3 Kd7 Bf1 Ke8 Ke2 Kd7 Ke3 e5 Ke4 a5 d4 h5 d6 h3 Kd5 e4 f6 h2 c6+ Ke8 f7+ Kd8 d7 Ke7 d8N Kf6 c7 Kg5 Bc4 Kh4 Ne6 a4 Nf4 e3 Nge2 Bd6 f8R Bg4 Nd3 Kh3 c8N h4 Rf1 h1N Rf5 Nf6+ Ke6 Ra5 Kf7 Nfd7 g8B Nb6 g7 Re5 d5 Ng3 Qe1 Ne4 Bb3 Bc7 d6 Nd2 d7 Kh2 d8R h3 Nd6 Rh5 Rg5 Rf5+ Ke8 Re5+ Bge6 Rf5 Ne4 Bg3 g8B Re5 Nd6 Rf5 Ng1 e2 Bec4 Re5+ Bge6 Rf5 Qc1 e1B Ne2 Rf7 Ra5 Re5 Qd1 Rff5 Qc1 Ne4 Qd1 Bd2 Qe1 Bdf4 Nbc3 Nd2 Nb1 Rd5 Bd7 Be5 Ne4 Bc7 Nd6 Rde5+
2B1B2q/3NP2Q/R1P2p1r/3b4/K1b1q2N/2pRpR2/N3kNbb/3R2Bn w - - 0 1 illegal: No proof kernel
nb1BK3/1NpN2qN/1Q1PB1P1/2R3pb/2R1nkBp/6R1/1q6/1R2N1qq w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 a5 h4 Ra6 Bg2 Rf6 Bf1 Rf5 gxf5 Kd7 Bg2 Ke7 Bf1 Ke8 h5 g5 Rh4 h6 Rh2 Rh7 Rh3 Rg7 Rh1 Rg6 hxg6 h5 Kf2 Kd7 b4 Kd6 e4 Ke5 d4+ Kf6 b6 a4 b7 h4 e5+ Kg7 d6 Kh6 d7 a3 e6 a2 e7 Nf6 e8B Ng8 f6 Bd6 d5 Nc6 b8R Na7 f7 Nc6 f8N Nd4 b5 Ne6 b6 Qf6 d8N Bc5+ Qd4 Ne7 d6 Qf5 b7 Bd7 Be2 Qf6 Nd2 Bb6 Rh3 Nc5 Nh7 Ba4 Rb1 a1Q Rg3 Ba7 Bb2 Bc6 Bf7 Nb3 Be6 Ng8 Nc4 Ne7 Qb6 Nc5 Ne5 Kh5 Nd7 Qg7 Bf6 Nd5 Ra8 Qa3 b8R Qb2 Nb7 Ba4 Rf8 Bd1 Bd8 Bb8 Rf5 Ne4+ Ke1 Bc2 Ra4 Bb3 Rc4 Bd1 Qb4 Nb6 Rfc5 Na8 Qb6 Kh6 Kf1 f2 Kg2 f3+ Kh3 f1Q+ Kg4 f2 Nf3 Qg1 Ne1 f1Q Bf3 Qfg2 Kf5 Q2h1 Bg4 Bf3 Bf7 Bd1 Ke6 Bf3 Ke7 Be2 Bh3 Kh5 Ke8 Bf3 Bf1 Bg4 Be2 Bf3 Rh3 Kg4 Rg3+ Kf4 Be6 Bh5 Bd1 Qhh2 Bdg4 Qhh1
3RqB1N/2P1BBRq/1pn1pB2/2N2p2/3R2p1/2bQ3r/KR3P1q/1nN4k w - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 e4 d5 exd5 Nf6 g4 Ng8 b6 cxb6 g5 Qd7 Bg2 Qd6 Bf1 Qd8 h3 a5 h4 Na6 Qe2 Bf5 Qd1 Bg6 h5 f5 Ra4 Rc8 Ra2 Rc6 Ra1 Rf6 gxf6 Bf7 Bd3 g5 Bf1 Bg6 hxg6 Qb8 Nf3 Qc7 Ng1 Qd8 b8R Kd7 c4 Kd6 d4 h5 Kd2 g4 Kc3 h4 Kb3 h3 g7 h2 c5+ Kd7 d6 Kc6 f7 Kd5 c6 Ke4 d5 a4+ Ka2 a3 c7 Nc5 d7 Na6 d6 Rh3 Bc4 Rg3 Bb2 Qe8 d8N Rb3 d7 Re3 Qd3+ Kf4 Ne2+ Kf3 Nbc3 Kg2 Rhb1 h1Q Na4 Qh7 Nc5 Rh3 Nc1 Nf6 g8R Bg7 f8B Nd5 Bf6 Kh1 Nf7 Bh8 Ra8 Nb8 d8B Nc6 Rb2 Bg7 Nh8 Nc3+ Kb3 a2 Bf7 e6 Bde7 Nb1 Rd8 Nc3 Rab1 a1Q Rd2 Qa5 Rbb2 Nb1 Rd1+ Qe1 Ka2 Qg1 Rdd2 Bh6 Rg7 Qh2 Qc3 Be3 R2d4 Bd2 Qd3 Bc3
3Rq1Kn/B1pp1rp1/QrBkBP2/2R3RN/RNr2N2/4NP2/3p3r/2b5 w - - 0 1 illegal: No proof kernel
1K2B2R/1BrRN1pN/1p1Br3/1B1qR1p1/2Pr4/3r2Q1/1nn1Pp1N/1k2N3 w - - 0 1 legal: proof: f4 e5 fxe5 a5 b4 h6 bxa5 Qg5 g4 Qf6 c4 Qd8 g5 hxg5 c5 b6 c6 Bb4 Bh3 Bc3 Nf3 Bb7 cxb7 c5 Ng1 c4 Bf1 Bd4 Bb2 c3 Ba3 c2 Bc1 Bc3 dxc3 Ke7 Bf4 Kf8 Bc1 Ke8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 d6 h4 f6 a4 Ra7 h5 Nd7 Kc6 Ke4 b8N d5 e6 f5 h6 f4 h7 d4 e7 f3 e8N f2 a6 d3 c4 d2 a5 Nf8 Ba3 c1R Nf3 Qe7 Qb3 d1R Ne1 Qe5 Bg2+ Kd4 Qg3 Ne6 Bd6 Rb7 a7 Rd2 a8B Qf5 a6 Qf7 a7 Ra2 Nd2 Ra3 Nf1 Nc5 Nf6 Rd3 Nh2 Kc3 Ra5 Na6 Re5 Kb2 Bf3 Rcc3 Bh5 Rd4 Rf1 Re7 Bb7 Re6 a8B Nc5 Bg6 Ne7+ Kc7 Rf8 h8R Nd3 Nh7 Kb1 Nc6 Nf5+ Ne7 Nb2 Ba6 Rg8 B8b7 Rcd3 Bb5 Ne3 Rh1 Qf3 Bge8 Nc2 Kb8 Qd5 Ng2+ Ka2 Rd1 Rf8 Rd2 Rf7 Ne1 Kb1 Bbd7 Ra3 Nc6 Qh1 Bc5 Rd5 Rd4 Rd3 Bb4 Rf4 Ne7 Rc5 Bb5 Rc7 Rd7 Rfd4 Bd6 Qd5
8/1B2bpqb/1B2Bp1p/p3NN1K/2Q1r2R/R2PrN2/2P3RR/rN1kr3 w - - 0 1 legal: proof: g4 b5 h4 c5 f4 d5 a4 c4 axb5 d4 g5 d3 h5 c3 f5 Bb7 f6 Nc6 Kf2 Ne5 Ke3 Ng6 hxg6 gxf6 Kf2 Bc8 dxc3 d2 c4 Nh6 c5 Ng4+ Kf3 Ne5+ Ke3 Nd3 exd3 Bd7 Ke2 Bc8 Kf3 Kd7 Kg4 Ke6 b4 Ke5+ Kh5 Kf4 c6 Ke3 g7 a5 g8N e5 c7 e4 g6 h6 b6 Be6 c8B Rb8 g7 Be7 b5 Bb3 b7 Qc7 b6 Qd6 Bg2 Qc7 Nf3 Ra8 b8N Kf2 b7 e3 Rh2 e2 Nc6 e1R b8R Rh1 Be6 Qg3 Ra3 Re1 Rb4 Re8 Rbh4 Bd5 Nce5 Be4 Bb2 Re3 Bd4 Bh7 Qc1 Ke2 Bb6 d1R Qb2 Qf4 Qb3 Qg3 Qc4 Rc1 Bh1+ Kd1 Bg2 Rd8 Bh1 Rd4 Bg2 Rde4 Bh1 Bc5 Ne7 Re8 Nf5 Be7 g8R Re1 Nfd2 R4e3 Bb7 Qg1 Ndf3 Qg7 Nbd2 Ra1 Nb1 Qf8 Rgg2 Qg7 Ng3 Rd8 Nf5 Rd4 Rh1 Rg4 R1h2 Rge4
b1b5/kBR1PPN1/B2B1p2/7p/3rp1R1/2r2Q2/qN1pBKp1/1nR1N2N w - - 0 1 illegal: No proof kernel
rQ1rk1N1/1R2q1q1/1R1BN3/r1P2B2/n2bb1rN/4B2B/nP1r3R/1K1Nn3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 e5 Kc2 h5 f4 d5 g4 e4 f6 a4 f5 d3+ Kc3 d2 Kc2 d4 b6 e3 g6 e2 b7 h4 c5 a3 g7 h3 g5 h2 g6 a2 Nc3 Nc6 b8R Rh4 Rb7 Rg4 Bh3 Nge7 g8B Bg7 Bh7 Nd5 Nf3 Qe7 Nh4 Nb6 Qe1 d1R Be3 Bh8 g7 Na4 g8N Rd2+ Kc1 d3 Nd1 Be6 Qg3 e1N Qb8+ Bc8 Rb6 Nb4 f7+ Kf8 Rg1 h1Q Rg2 Bd4 Rh2 Qc6 Rb7 Qce8 Rb6 Bb7 Bg6 Be4 Rb7 Kg7 f8N Q8f7 Bh7 Qff6 Ne6+ Kf7 Rb6 Qh6 f6 Qg7 Bf5 Ra5 Qf4 Ke8 f7+ Kd7 f8B Ke8 Rb1 a1R Qb8+ Qd8 Bd6 Ra8 Qb7 Qde7 Qa7 Ra3 Ra1 Na2+ Kb1 Rb3 Ng2 Rb5 Nh4 Ra5 Rb7 Nc1 Ra3 Na2 Rab3 Rc2 Nf2 d2 R3b6 d1R+ Bc1 Rd3 Be3 Rcd2 Nd1 Rd8 Qb8 Ra3+ Ka1 Bd5 Kb1 Ra8 Bc2 Be4 Bd3 Rb3 Bc2 Rb5 Bd3 Rba5 Bc2 Bh1 Bf5 Be4+
1K2R2Q/BbbR2P1/5N1N/rn1n1nnP/1kB5/1Bn1RN1q/Bb2q3/r4R2 w - - 0 1 illegal: No proof kernel
r1rN1Nb1/n4Pn1/4nb1N/2r1nB1R/P1BQ1R2/3KBR2/RB4q1/1n1k2q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 f4 Kd6 g4 Kc5 a4 Kc4 d4 b5 g6 h5 g5 c5 d6 e5 f6 h4 d7 h3 d5 h2 f5 b3 d6 e4 g7 b4 f7 b2 f6 b3 g6 e3 Qd2 Ne7 g8B Nbc6 g7 Na7 Nf3 Ng6 Bh3 Be7 Re1 h1N Rf1 Nf8 Nh2 Ne6 Nc3 b1N f8R b2 Nb5 Kb3 Ng4 c4 Rf3 c3 Nc7 c2 Nh6 Ng3+ Kd3 e2 Ra2 Nh5 Bf5 e1R Qd1 Re5 Be3 Rc5 Bf7 Bb7 g8R Bd5 Rg5 Nhg7 Rh5 Nd2 Qa1 b1N Qd4 c1Q Rf4 Qb8 d8N Qg1 d7 Nc4 Bg8 Qb7 Rf7 Ng5 Nce6 Rac8 Nf8 N5e6 Nc6 Ra8 d8B Rc8 Ba5 Ra8 Nd8 Ne5+ Ke2 Qc6 Bc3 Bc4+ Bd3 Qe4 Bb2 Bd5 Bc4+ Kc2 Bh7 Qeg6 Bd2 Qg2+ Ke3 Kd1 Rf3 Q6g3 Bf5 Nec6 Kd3 Qe1 Ng6 Qeg1 Be3 Rf8 Nb7 Rfc8 Nd8 Ng5 Rf8 Bg8 Rf7 N5e6 Nf8 Bd6 Rb7 Be7 f7 Bf6 Re7 Ng5 Re4 N5e6 Ref4 Ne5+
B1Rn2Bq/2NPrn2/2RB2Rq/1n1b4/k3r2B/3q1q1N/K1N3P1/1N1qQ1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 c5 Kc3 h5 Kb3 f5 e4 a5 b6 f3 g6 f4 e5 c4+ Ka2 a4 b4 a3 b5 c3 b7 h4 g7 c2 d6 h3 b6 Kc6 e6 h2 e7 f2 e8N f3 d7 Ra4 Bf4 c1Q Bc7 Rc4 d5+ Kb5 d6 Rh7 Qc2 Nc6 b8B Nh6 g8B Qd1 b7 Re7 Qd2 Nf7 Bd3 f1Q Qe1 f2 Nh3 Ka4 Be4 Qfd3 Bb6 f1Q Bf2 Q3f3 Bh4 Qf1d3 Nc7 Bh6 Rf1 h1Q Bd5 Qe8 d8N Be3 d7 Bg1 Nde6 Ncd8 Nd4 Qf8 Rf2 Qh6 Rc2 Qh2 Rc1 Qh8 Nc2 Qhf4 Ba7 Qfh6 b8R Bb7 Rc8 Bc6 Be4 Bd5 Bc5 Be6 Ba8 Bd5 Ne3 Rb4+ Rc4 Ka5 Nc2 Bb7 Rc3 Rd4 Kb3 a2 Na3 Bd5+ Kb2 Rf4 Rb1 a1N Bb4+ Ka4 Bc5 Bb7 Ka2 Nb3 Rb2 Rg4 Nb1 Nd4 Rb6 Nb5 Rg6 Rge4 Bd6 Bd5+ Ka1 Rd4 Rc6 Rc4+ Ka2 Rce4+
1R1rb3/NPnRB1N1/4q1qB/1b4R1/n1Qbk1B1/r4b2/qP3K1B/b4N1N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 d4 Kf6 g4 c5 b6 a5 d6 e5 d7 h5 d5 e4 b7 e3 d6 a4 Ra2 e2 Qd5 h3 Kf2 c4 Nd2 h2 Bh3 h4 Nf1 c3 Qc4 Qa5 d8B+ Ne7 d7 a3 Bc7 c2 d8N Bd7 Nc6 Nd5 Na7 Nb6 Ra1 a2 g5+ Kg7 f6+ Kg6 f7 Be8 Bd7 h3 Bg4 Bg7 f8B Na4 Be7 Bd4+ Be3 Qa6 Rd1 a1B Bcd6 c1Q f5+ Kg7 f6+ Kg6 f7 Qb1 Be5 Qa2 Bf4 Qd6 Rd3 Na6 f8N+ Kg7 g6 Nc7 Bg3 Rd8 Rd2 Rh5 Rd1 Ra5 Rd3 Qf6+ Bf4 Qg5 Ne6+ Kh6 g7 Kg6 Rd1 Qh6 g8R+ Qg7 Bh5+ Kf5 Bg4+ Ke4 Be5 Qh6 Rg5 Qg6 Ng7 Ra6 Nf3 Ra5 Ne1 Ra6 Rg1 h1B Nd3 h2 Bf4 Bf3 Bg3 h1B Bh2 Bb5 Rg3 Rh8 Rh3 Rd8 Rh8 Rd5 Rb8 Rd8 Nf4 Be8 Nfh5 e1Q+ Kg1 Qa5 Kf2 Qe5 Rd3 Be2 Rd2 Bhf3 Rd1 Qef5 Nhg3+ Ke5 Nh1+ Ke4 Rd2 Qfe6 Qc5 Rc6 Rf5 Be5 Rd7 Bb5 Bh6 Rd6 Qc3 Rd3 Rg5 Re3 Qb4+ Bd4 Qc4 Ra3+
K1b3BN/B1k5/q2n1q1b/1rq1R3/1N2n1nB/4q1P1/1RP2NrN/2bRB2Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 Kd3 e5 Kc4 h5 Kd5 d6 b4 Kd7 f4 a4 g3 e4 g6 a3 g7 h4 f6 a2 f5 h3 f7 d3 b6 d2 f6 e3 b7 e2 b5 e1Q b6 h2 Nc3 Be7 f8B Nh6 g8N Na6 b8R Nc5 b7 Nf5 f7 Bg5 Nh6 Qe3 Be7 Ne4 f8N+ Kc7 Ng4 Bh6 Bh4 Qf6 Nh3 Ra5+ Bb5 Rh7 Re1 h1Q Ng6 Qhg1 Nh8 Rf7 Qf3 d1N Qh1 Ndf2 Nh2 Ng4 Nf2 Re7 Rb1 a1B Na2 Bb2 Bd2 Bc1 Rb2 Rh7 Rd1 Re7 Be1 Re6 Kc4 d5+ Kb4 d4 Bc4 Rd6 Bg8 d3 Ra8 Rc5 Ra5 d2 Ka4 Rd7 Nb4 Nfd6 Rb5 Rf7 Ka5 Re7 Ka6 Re6 Rb6 Rb5 Ka7 Re7 Ka8 Qc5 Nh3 Qge3 Nf2 Re5 Ra6 Rd5 Ra5 Rf5 Nfd3 Rf1 Nf2 Rg1 Rb1 Rg2 b8B+ Kb6 Ba7+ Kc7 Rb3 Ba3 Ra1 d1Q Rb2 Qde2 Rd1 Qec4 Rb3 Bc1 Rb1 Rb7 Rb2 Qa6 Rb5 Qcc3 Rbd5 Rb5 Re5 Qcc5
3Bq1N1/1k1B1r2/nn1B2q1/1Q5b/K1R1NN2/NPb4B/RbrrP3/5rRq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 d4 f5 Kd2 a5 Kc2 c5 Kb3 Kc7 b6+ Kb7 g6 h5 g5 h4 g7 a4+ Ka3 c4+ d6 f3 d5 c3 b3 c2 g6 h3 Bd2 c1R Bb4 h2 d7 f2 d6 f4 Bh3 f1Q Qd3 f3 Ra2 f2 Nf3 Nf6 g8B Qe8 d8B Nd5 g7 Ra7 d7 Qg1 Qb5 f1R Bge6 Na6 g8N Qgg6 Rg1 h1Q Nfd2 Rc2 Ne4 Bg7 Bd6 Bc3 Beg4 Rh7 Bf5 Rf7 Be6 Ka8 Beg4 Rc7 b7+ Ka7 b8R Nb6 Bf5 Rd2 Bfg4 Bb7 Rc8 Bd5 Bf5 Kb7 Be6 Ba5 Bef5 Rcc2 Rc4 Bc3 Be6 Nc7 Beg4 Bb2+ Kb4 Na6+ Ka5 Be6 Na3 Bd5 Nf2 Bf3 Ne4 Bc3+ Rb4 Qf6 B8e7 Bb2 Rc4 Qg6 d8N+ Ka7 Bd7 Bh5 Ne6 Kb7 Nf4 Bc3+ Rb4 Bb2 Bd8 Bc3 Nb1 Bb2 Rc4 a3 Ra1 a2 Na3 Bh8 Rb1 a1B Rb2 Bf6 Ra2 Bab2 Qf5 Nc8 Ka4 Bfc3 Qb5+ Nb6+
NN3q1k/2R1bb1n/1B2RR1n/3nBP1R/1rr1n2P/Q4BN1/1bB2r1q/3K4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 d5 c4 g5 b4 Kg7 b6 a5 c5 e5 b7 a4 b5 g4 c6 a3 c7 e4 b6 e3 Bb2 a2 Na3 e2 Rh2 g3 Bg2 Nh6 Rc1 a1B Nc4 Ra4 Qd3 Be6 c8B Rb4 Qa3 Be7 Bf3 Nd7 b8B g2 b7 Qf8 Bc7 Nf6 b8N d3 Bb6 Bf7 Be5 d4 Kd2 e1R Ne2 g1Q Ng3 Kg8 Re2 Nh7 f6 Qh2 Bf5 Rf1 Rc3 Rf2 Kd1 d2 Bc2 Bb2 f5 Ng5 Ree3 Rh7 Re4 Kh8 Re2 Rg7 Ree3 Nh7 Re4 Ng8 h6 Rg4 Re1 Ng5 h7 Nh6 Re4 Bg6 f7+ Qg7 f8R+ Ng8 Rf6 Qf8 Bec7 Bf7 Bc5 Kg7 h8R Rf4 Rh5 Nh6 Re5 Kh8 Ree6 Nh7 Nb6 Rg4 Be5 Re4 Bb1 Rg4 Kc2 d1N+ Be2 d3+ Kd2 Ne3 Na8 Nd5 Bb6 Rgf4 Rc7 Rfc4 Kd1 d2 Bf3 Bc3 Kc2 d1N+ Kc1 Bd4+ Bc2 N1c3 Nd7 Ne4 Kd1 Ba1 Nb8 Bb2
2q2rQR/2N2B2/1b1Rn2n/kbr1P3/1N1RbP2/2Rr2nb/2q1BB1K/N1B5 w - - 0 1 illegal: No proof kernel
1nK5/2N1R3/7P/R1bnr3/b1BqNB2/1b1Bn3/2PN1NRn/kBQq1r1q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 a5 b4 d5+ e6 g5 e4+ d3 b6 g4 b5 a4 b7 g3 h6 f6 e5 g2 b6 d4 h7 a3 h5 a2 h6 Qe7 Nh3 g1N Rh2 Nf3 Nd2+ Kc3 Rg2 Qd8 Nf2 Nh2 Qe1 Na6 b8R Bd7 b7 Ba4 e7 Bb3 e8B Bc5 Rc8 Nb8 e6 Ra5 e7 Ba4 Ke6 f5 Bf7 f4 e8B f3 Qe3 Ne7 Bb5 Nd5 Bc4 Rf8 h8N Qh4 Re8 Qd8 Rb1 a1Q Rb5 Qh4 Re7 Qf4 Ng4 f2 Bg8 Qf3 Nf7 Qh3 Be2 f1B Ng5 Rf5 Nf2 Qf3 Rg4 Qh1 Rg2 Qb2 Ba2 Bb3 Bb1 Ra1 Qf4 Re5+ Kf7 Ba4 Ke8 Qb4 Kd8 Qc4 Ndf3 d2 Kc8 d1Q Ra5 d3 Nd2 Qd4 Be6 Ne3 Bc4 Nd5 Ndf3 d2 Bed3 Qe1 Qe3 d1N Nd2 Be2 Qf4 Bh5 Qe3 Bf7 Qf4 N1e3 Nge4+ Kb4 Qg5 Qd1 Qf4 Nc6 b8N Bg8 Ng3 Kc3 Na6 Nb8 Nc7 Bf7 Ndf1 Bg8 Bd2+ Kb2 Nge4 Bf7 Qg5 Neg4 Bf4 Nge3 Bba2 Rc1 Bb1 Ka1 Nfd2 Qh5 Qg4 Rf1 Qd1 Qe2 Qc1 Qd1 Ba6 Nf6 Bab5 Bb3 Bbc4 Nfd5
r4B2/3N4/nNK1RbBP/kN3R2/2RB1P2/r6q/qnb2qR1/1n1NbQ1q w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 c5 Ke4 Kc7 d4 Kb6 h4 e5 b4 g5 f4 a5 f6 c4 h5 g3 f7 c3 d6 c2 Kd5 a4 h6 g2 d7 a3 Rh2 e4 Nh3 g1B Bb2 c1N Nf2 a2 Nc3 g4 Rg2 e3 Bd3 e2 Bg6 g3 Qf1 e1Q Nfd1 Qf6 d8R Na6 Re8 Qh4 Re6+ Bd6 f8B Nd3 Rc1 a1Q Rcc2 Qh3 Rc1 Kb7 b6 Be5 Nb5 Qf2 Rc4 Bf6 Kd6 Bh2 d5 Qa2 Ba1 Ne7 Bd4 Kb8 b7 Nb2 Re2 Bf5 Re6 Rg8 Kd7 Bd3 d6 Nd5 Kc6 Bc2 d7 Rg7 d8N Bg1 Nf7 Nc3 Nfd6 Nb1 Nc8 Rh7 Nb6 Rd7 Nbc3 Ka7 b8N Rd5 N8d7 Ra5 b5 Ra3 Be4 Qe3 Bf5 Bf2 Bg6 Be1 Nbd5+ Nc5 b6+ Ka6 b7 Ka5 b8R Na6 Nb5 Qg1 N5b6 Qf2 Rh2 g2 Rbe8 g1Q Rg2 Nd3 Re5 Nb2 R8e6 Qgh2 Rf5 Qh1
R2n1K1q/2Nb3b/PR1R1n1R/1Pnrr1B1/2Q2NB1/qr1nk1b1/B4N2/5B2 w - - 0 1 illegal: No proof kernel
1q1Nb1R1/1q2qP1k/1KB5/1N1rQ2b/1BRBnBR1/2Pbr3/1rN2n2/b4N2 w - - 0 1 illegal: No possible last move, all moves rejected
R1K2rb1/Rrbn1P2/B2Q4/B3nNPR/qN1R1r2/4bq2/qN4b1/5NkB w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 d4+ e3 g4 h5 b4 a5 b6 e5+ d6 h4 g6 e4 g7 a4 g5 h3 b7 a3 d5 a2 b5 c6 b6 h2 Na3 Rh7 Ne2+ Kf3 Ng3+ e2 Bd2 e3 Ba5 Bf5 Nc4 Qd7 Nb2 Nh6 g8B Nf7 Qd4 e1Q Ba6 Kg2 f4 e2 Nf1 Bd3 f5 Qf2 f6 Ne5 f7 Rh4 Bh7 e1R Be4+ Qf3 Qb4 Bg7 Qd4 Qe6 d7 Bf6 d8R Rf4 d6 Rb1 d7 Qc4+ Kd6 c5 Kc7 Qa4 Qb4 c4 Kc8 c3 Qd6 c2 Rg8 c1B d8R Nbd7+ b8N Be7 b7 Be3 Bd5 Bh7 Rgf8 Ra7 Nc6 Bg8 b8N Rb7 Nd4 Rd1 Nbc6 Bf6 Rb1 a1Q Nb4 Q1a2 Nf5 Rdd4 Ra1 Be7 Rde8 Bd8 Rd1 Rd3 Re7 Ra3 Rd4 Kf2 Rg1 h1B Rg3 Bg2 Rh3 Kg1 Rh5 Nf6 Rc7 Nfd7 Bc6 Rb5 Ra7 Rb7 Be4 Rc3+ Qc7 Rc6 Re8 Rh6 Qd6 Rh8 Nc4 Bf6 Rh2 Qff2 Bf3 Bh1 Rf8 Bh7 Nb2 Qg3 Bg2 Qf3 Rh5 Rg8 Rd8 Rf8 Re8 Bg8 Rd8 Rb8+ Kc7 Rb5 Rb8 Bd8+ Kc8 Rb7 Rba8 Qg3 Bh3 Bc6 Bg2 Qh3 Bh1 Bg2 Rb8 Qf3 Rba8 Bc7+
1R1R3Q/1N1b4/BB1N1bb1/Nq4BR/Kbr4P/1r4n1/B1R2P1b/2q1b1kn w - - 0 1 illegal: No possible last move, all moves rejected
R1r4R/1BRNQRq1/2b3PB/brNN1n2/3P3r/3Bb1kr/2Kb2N1/5nr1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Ke7 e4 Kd6 b4 Ke5 b6 h5 b5 c5 g6 f5 g7 a5 d3 c4 Kd2 h4 b7 c3+ Kc2 a4 g5 a3 g6 h3 b6 a2 d6 h2 d7 f3 Bd2 f2 Bh3 f1R Qc1 f4 Qe1 f3 Bf5 f2 Nh3 Ne7 g8B Nbc6 b8N Rh4 b7 Na5 Na6 Nb3 b8N Qc7 d8R Bh6 Rf8 Be3 Nf4 Bb7 Nc5 Bc6 Rf7 Rg1 Ng2 f1R Bc1 Nd2 Nbd7+ Kd6 Qe2 Rc8 e5+ Kd5 d4 Qa7 Bg4 Rf5 e6 Nf1 Bh3 Rg5 Bf5 Bd2 Bd3 Nf5 e7 Rgh5 Kb3 c2 e8R Be3 Bd2 c1B Ree7 Qc7 Kc3 Qe5 Kc2 Qg7 Be1 Bcd2 Nc3+ Kd6 Nd5 Ba5 Rb1 a1B Rb8 B1c3 Ra8 Rh3 Bh4 Bcb4 Bg5 Bbd2 Bh6 R5h4 Ne1 Rg5 Ng2 Rgh5 Rg1 h1R Re8 Nh2 Rb1 Rg1 Rb7 Nf1 Rc7 Rg5 Bh7 Rgh5 Rh8 Rg5 Bg8 Rgh5 Ne4+ Ke6 Qe1 Bc1 Qb4 Bcd2 Nec5+ Kd6 Ne7 Qf8 Rfh7 Be4 Bd5 N5g3 Rf7 Qg7 Bb7 Bc6 Na4+ Ke6 Ng8 Rb5 Qf8 Kd5 Nac5 Nf5 Ne4 N5g3 Ngf6+ Ke6 Qd8 Kf5 Nd5+ Kg4 Qe7 Nf5 Nec5 Kg3
5nNr/n2B1NRR/R6b/Q1B5/2Nn1kNP/rb1nb1q1/PB1K4/B2b2r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kd7 f4 Kd6 h4 c5 h6 b5 h7 e5 f6 g5 f5 c4 f7 b3 f6 b4 Ne2 g4 Bh3 e4 Nf4 e3 Rf1 b2 Na3 b1R Bb2 b3 Ng2 g3 Bd7 e2 Ne3 c3 Ng4 c2 Kd2 c1N Qe1 g2 Rg1 Bg7 f8B+ Ne7 f7 Nd3 Rf1 g1N Rf6+ Kc7 Nc4 Nec6 Re6 Na7 Bc5 Qg8 f8R Bh6+ Rf4 Bb7 Ra6 Rc1 Rb1 Bc6 Ba1 Ba4 Rb2 Qg6 Rb1 b2 d6+ Kb7 d5 Bb3 Nge3 Qg2 Rf7 Qg3 Rg7 Bd1 Be8+ Kc8 d7+ Kc7 d8N+ Nd7 Nf7 Nf8 Bd7 Bb3 Nfd6 Bd1 Ne4 Bb3 Nf6 Rd1+ Kc3 Nf3 Neg4 Nd4 Qd2 e1B Ng8 Bf2 d6+ Kb8 Qg5 Rg1 Kd2 Kb7 Re1 b1B Ree7 B1c2 Ref7 Nf4 Qd8 Bd1 Qa5 Kb8 Ba4 Kc8 d7+ Kb8 d8N Nd3+ Rf4 Kc8 Nf7 Kb8 Nb6 Kc7 Bd7 Re8 Bb2 Re3 Rf5 Qd6 Rh5 Qg3 Bf5 Kc6 Nc4+ Kd5 Bd7+ Ke4 Ne7 Rg8 h8B Kf4 Ba1 Bg5 Rhh7 Bh6 Rg5 Rf3 Bf6 Rh8 Rgg7 Re3 Ng8 Nc1 Bfe7 Bbc2 Bb4 Ra3 Bec5 Nd3 Bbc3 Bb3 Bcb2 Be3+
b1bqBRB1/b2P1bN1/1BP5/7R/r4qrn/3Nq3/Nn2qB2/kN1QRK2 w - - 0 1 illegal: No proof kernel
3RbkrB/6NQ/2n2qb1/2pq2N1/1qP1PK2/rbN1B3/1n1n3B/NB4RR w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Be7 h4 fxg4 Ra6 g3 Ra5 g4 Ra1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 d5 Ke3 c5 b4 h5 c4 a5 f4 a4 b6 a3 g6 a2 b7 g2 e6 h4 g7 g3 f5 h3 b5 h2 f6 d4+ Kf4 d3 e4 d2 e7 Nd7 b8N Ra3 b6 Ne5 b7 Bf5 Nh3 g1N Na6 g2 b8B Ngf3 Nc3 g1Q Bd3 Bg6 Bb1 Qe1 Nb4 Qd5 Nc2 Kf7 e8N Ne7 g8R N7c6 Qe2 d1B Ng7 Nd2 Rd8 Rg8 Qf2 Bdh5 Qh4 Bd1 Rg1 h1B Qh7 Bhf3 Bb2 Bfh5 Rh1 Re8 Ng5+ Kf8 f7 Ra8 Nd4 Bb3 Nc2 Ra3 Bc7 Ng4 Be5 Nf2 Bd4 Nd1 Be3 Ke7 Rg1 Rg8 f8B+ Kf6 Bc1 Nb2 Bd6 Be8 Be5+ Ke7 Rh1 Beg6 Bg1 Be8 Bh2 Kf8 Bd4 Bg6 Bf6 Nf1 Be3 Nd2 Nf5 Qd7 Bh8 Qb7 Ng7 Qb4 Rf1 Qd1 Rg1 Qh5 Nf3 Qd5 Ng5 Qd3 Rh1 Qd5 Na4 Qc3 Rd7 Bf5 Rd8 Qf6 Nc3 Ba4 Nd4 Bd1 Nb3 Bg6+ Kg3 Na4 Bd3 Bc2 Rad1 a1Q Rdg1 Qb2 Na1 Qb4 Kg4 Bb3 Bb1 Nb2 Kg3 Bf5 Kf4 Bg6+
BN1QK3/2r4p/B3Nr2/kPRNn1b1/nR1N1Bq1/3n1P2/q3qrb1/2R3R1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 a5 Kg4 c5 Kg5 Kc7 b4 Kb6 d4 e5+ f6 a4 g4 a3 f3 a2 d6 e4 d5 c4 d7 c3 d6 h3 Ne2 h2 Bf4 c2 Rg1 c1N Nbc3 h1Q Nd4 Nd3 Rc1 Ne7 f7 a1R Kf6 e3 g5 e2 g6 e1Q g7 R1a2 g8B Qe8 d8R Nbc6 d7 Bh6 f8R Qe4 Bd5 Nce5 Qd2 R8a5 Ba8 Qg2 Be2 Ba6 Rc8 Bg5+ Kg7 Nd5 d8N Rc2 N8e6 Raa2 Rc5 Qe7+ Rf7 Rf8 Bf1 Qe8 Ra7 Bc8 Ra4 Rf6 Qd1 Qh5 Kg8 Qhg4 Kg7 Nf7 Kf8 Qee2 Ke8 Nfe5 Qd2 Ba6 Qd1 Ka7 Qd2 Nb6 Nd5 Rc4 Ra5 Na4 b6+ Kb8 b7 Ka7 Rcb5 Rc7 Rb6 Rb2 Rac5 Bc4 Rbb5 Ka6 Qd1 Qc2 Qd2 Qb3 Qd1 Rf2 Qd2 Qa2 b8N+ Ka7 Be2 Qf1 Rb6 Qe1 Bf1 Qe2 b5 Ndb2 Nf8 Nd7+ Ne7 Qh3 Nf5 Qd1 Re6 Be2 Re4 Kb6 Rb4 Qg3 Bh3 Ne5 Qd8 Bf1 Nd4 Nbd3 Nd5+ Ka5 Bc8 Bg2 Nfe6 Qg4 Ba6 Qde2
2K5/3q1BPR/2Qp4/3PR3/rNB3Nn/Nq1N1b1b/3n1Rq1/n1RrbB1k w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 Na6 b4 Bg7 Ba3 Bh6 axb5 Nb8 b6 Bg7 b5 Bf8 Bb4 cxb4 Ke2 Kf7 Kf3 a5 Kf4 h5 Ke5 e6 f4 a4 d4 b3 g4 h4 c4 h3 c5 a3 c6 a2 d5 h2 g6+ Ke7 c7 b2 f6+ Ke8 f5 Rh5 b7 Ra5 f7+ Ke7 b6 Qe8 g7 Rc5 g5 Na6 b8N Ra5 g6 Ra4 b7 Nh6 g8B Nc5 g7 Nb3 Na3 b1Q Qc2 Nd2 Qc6 Qb3 Rc1 a1N Nf3 Rh3 Ne1 Rd3 Na6 Qd8 Rg1 h1B b8R Bf3 Nb4 Qe8 Rg5 d6+ Kf4 Kf6 Ra8 Be7 f8N Qd7 Ng6 Bd8 Ne5 Be7 Bf7 Bd8 Nec4 Be7 Ne3 e5+ Kg3 Rd4 Ned3 e4 Rh5 Bd8 Rh3 Kg5 f6 Be7 Ng4 e3 Ra7 e2 Rh1 Ba6 c8B e1Q+ Kh3 Bb5 Ba6 Nf5 Ra8 Nh4 Re8 Qe2 Kg3 Ng6 Rh7 Nh4 Kh3 Bd8 Re7 Ba5 Re5+ Qf5 Qb6 Bc6 Bc4 Bd7 Qc6 Be6 Be8 Qe4 f7 Bc8 f8R Qe2 Ne1 Kf4 Bf7 Qd7 Qc5 Be4+ Ned3+ Kf3 Qc6 Nb1 Nbc2 Be1 Ncb4 Nd2 Be8+ Qf7 Nf2 Nb1 Kh2 Be6 Ne3 Bh3 Ng4 Qf5 Rf6 Qee3 Bf7 Rd1 Nfd3 Qd2+ Ngf2 Ke3 Kg3 Qe6 Rff5 Qe2 Rf6 Nd2 Rff5 Kd4 Kf4 Qc8 Ng4 Qg2 Kg5 Qb7 Kf6 Qa7 Nh2 Ke3 Ke6 Qc7 Nf4 Kf2 Ng4+ Kg1 Nfd3 Kh1 Rf2 Qc8+ Ke7 Qf5 Kd8 Bf3 Kc7 Qe6 Kd8 Qe7+ Kc8 Qd7+
2NbN1KB/4R1p1/1R6/q2r1QR1/k2rn3/2q1B1n1/bPNBBPN1/3brq2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 e5 Kc4 d3 Kd5 a4 c4 d2 h4 a3 h6 d6 c5 Kd7 h5 a2 b6 e4 f6 e3 b7 e2 h7 e1Q h6 Ra7 f7 Qee8 c6+ Kc7 Ne2 Kb6 c7 Kb5 Rh5 Nc6 Qc2 d1R+ Bd2 Be7 f8B Re1 Qf5 Ka4 b8R Nd4 Nf4 Ne2 Rg5 Ng3 Be2 Ra5+ Rb5 Qg6 Ng2 Qf6 Na3 Qc3 Nc2 Ba6 Ke6 d5 Kf7 d4 c8N d3 Rb6 Rd5 Rb1 a1Q Be3 Bf6 Bb4 d2 Ba5 d1B Bb4 Qe5 Bbd2 Bc4 Rc1 Ba2 Rb1 Ne7 Rc1 Rg8 h8N Ne4 h7 Qdc7 Rb1 Rgd8 Rc1 R8d6 Kf8 Qd4 Nf7 Qdc3 h8B Q7c5 Rb1 Q5a5 Rc1 Rd7 Nfd6 Rd4 Ne8 R7d5 Qe6 Nf5 Kg8 Nfg3 Qf5 Qd3 Nb4 Qa3 Rc7 Bd8 Re7 Qc3 Nc2 Qb1 Nb4 Qbd3 Nc2 Qda6 Bg4 Qf1 Bf3 Bb3 Be2 Ba2
k3B2Q/1p2P3/2KnBq2/5nBr/r3PN2/1RR1b1RN/1nb1b2B/1R1Nq2q w - - 0 1 illegal: Other
1r3NKr/1N3RN1/bnBb3k/3qP3/1R4B1/2BRNrQp/2bnP2r/B4r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 c5 Kf3 h5 Ke4 a5 g4 f6 b4 Kf7 d4 Kg7 d6 a4 Kd5 c4 d7 a3 Ke6 a2 d5 c3 d6 f5 b6 c2 b5 f4 b7 f3 g5 h3 g6 h2 b6 h4 Nh3 f2 Ng5 h3 Nc3 Rh7 Bg2 f1R Bb2 c1R Qe1 Ne7 Bc6 Rh4 Nd5 Rf5 Ne3 Rha4 Rf1 h1B Qg3 Rc2 Rad1 a1R Rd3 Rb1 Ba1 Na6 b8N Rcc1 b7 Kh6 g7 Ra7 g8B Rf2 Bf7 Rh2 Bh5 Rc3 Kf7 Nd5 Ne6 Rf4+ Kg8 Be4 Bg4 Nc5 Ng7 Nb3 Rf2 Qa5 d8N Nb6 Nd7 Nd2 b8R Ba6 Nb7 Rf1 Rf3 Rb3 Rf2 Be7 Nf8 Rf3 d7 Bd6 d8B Rbb1 Ra3 Bc2 Rd3 Rf7 Rf4 Qd5 Rb4 Rb2 Rc8 Rb3 Rc7 Ra8 Rd7 Rb8 Bh4 R7f3+ Rf7 Ra3 Qg1 Rc3 Be1 Rc4 Qg3 Rd4 Bh5 Rh4 Bg4 Nb1 Nh5 Kg5 Bec3 Nd2 Nf6 Rh7 Nh5 Kh6 Ng7 Rh8+
2r5/1B1BbnrR/3N1P1B/p3kb1P/RN1N3Q/r2nb2q/K4Bb1/b1N2R2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 Kc2 a5 Kb3 e5 f4 g5 h4 d5 c5 e4 c6 g4 h6 e3 c7 e2 h5 e1B b6 g3 b7 g2 h7 d3 Be3 d4 Ra4 d2 Ne2 g1B Ka2 d3 b4 Qe8 b5 Bg3 b6 Ba3 Qe1 d1R Bf2 d2 Nc1 Bb2 Ba6 B1h2 Rf1 Be5 Nc3 Bg1 Nb5 Nh6 Nd6 Rg8 h8R Qd7 Rh7 Nc6 b8N Bh4 Bb7 Nf7 Na6 Rg7 Nb4 Ba1 Qe4 Nce5 Qd4 Ke7 f6+ Ke6 Qe4 Bg5 Qh1 Re1 Qh4 Nd3 f5+ Ke5 Nc2 d1B Nb4 Nh6 f7 Bf3 f8B Nf7 f6 Qh3 Kb1 Rd1 Ka2 Bf5 c8B Bg2 Be6 Be3 Bd7 Rg4 Bh6 Rc8 Bbc6 Re1 b7 Rg7 b8N Bc5 Bb7 Re3 Nc2 Ba3 Nd4 Bb4 Na6 Reg3 Be1 Be3 Bf2 Bc5 Ne4 Be7 Nb4 Rgg8 Nd6 R3g7 Bf3 Rc3 Bfc6 Rc8 Bb7 Ra3+
1Q2RR2/r1RN3B/r1P1Nbq1/2K1B1Br/3b4/1P1b4/b4n1p/n1BR1Nkn w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 f4 e5 c4 h5 g4 a5 c5 a4 g6+ Kf6 c6 e4+ Kd2 a3 g7 h4 b6 a2 b7 h3 Qf3 h2 Qc3 e3+ Kd3 e2 Na3 e1B Qb4 Qd6 Nc2 Ra6 Ne2 Nd7 b8B Nh6 g8R Be7 Ne3 Bc3 Re8 Bd8 Rb1 a1R Bc7 Ra7 Qb8 R1a6 Bh3 Bb7 Rd1 Be7 Nf1 Nc5+ Kc2 Nb3 Kd3 Na1 g5+ Kg7 g6 Kf6 g7 Ng4 g8R Rh5 Rg7 Bc8 Bg2 Be6 Be4 Bg8 Rh7 Qe6 Bd6 Qf7 Rh8 Qg6 Bc7 Be6 Rhf8+ Bf7 Ng1 Bd8 Nf3 Be7 Ng5 Nf2+ Ke2 d3+ Ke3 d2 Ne6 Nh1 Bd8 Ba5 Kd4 Bb4 Bc7 Ba5 Bd6 Bc3+ Kc5 d4 Bd3 Nc2 Be4 d3 Ra1 Be5 Ra3 Bd8 Rb3 Bc3 Rb7 Na1 Rc7 Be7 Re1 d1B b3 d2 Bb1 Be2 Rd1 Bd4+ Kd5 Ra8 Rh8 Qg8 Re1 Bb2 Kc5 d1N Be4 R8a7 Bd3 Ndf2 Rd1 Bg6 Bc2 Be5 Bd3 Nh3 Bb1 Kf7 f6 Bf5 Bc2 Kg6 f7 Qh7 f8B Bd4+ Kb4 Be4 Bh6 Kf5 Bg5 Kg4 f5 Kf3 f6 Kg2 f7 N3f2 f8N Bef6 Nd7 Kg1 Be5 Bf5 Rhf8 Bc4 Be4 Be2 Bd5 Bb1 Be4 Bed3 Bg6 Qg8 Bf5 Ba2 Bh7 Bdb1 Kc4 Qg6 Kb5 Bd3+ Kb4 Bc3+ Kc5 Bd4+
4n3/1BqBRbBK/Nn1r3Q/1N2p2b/q2Rb1PN/Rrb5/2bP1kN1/3B4 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 a4 h5 g4 b5 f4 c6 g6 h4 f6 e6 d6 h3 f7 b3 f5 h2 f6 b2 d7 b4 g7 b3 a5 Ra7 a6 Rb7 a7 Qa5 a8B Rh6 d8R Qa4+ Rd4 Nd7 Ne2 Nb6 Nbc3 Rg6 Ra3 b1B+ Qc2 b2 Nf4 Bd6 f8N Be5 f7 Ba2 Qd3 b1B Bb2 Bc2 Be2 Bd7 Re1 h1B+ Ng2 Be8 Nb5 Bc4 Bd1 Nf6+ Kf3 Kb4 g8B c5 Nd7 Rb8 f8N Bf7 Re3 Ne8 Ke4 Bh8 Rd6 Bc3 Bb7 B4b3 Rd4+ c4 Kf4 Ba2 Nc5 Bab1 Ne1 Be4 Ng2 Ba2 Rh3 Bab3 Rh7 Ba2 Qh3 Bab1 Qh6 e5+ Kg3 Bcd3 Kh4 Be6 Kh5 Rf6 Rdd7 Bg6+ Kg5 Nc8 Nd4 Bde4 Ba6 Bh5 Ra2 Bbd3 Bc1 Bb2 Ng6 c3 N6h4 c2 Rhf7 Rb6 Bb7 Kc4 Na6 Rb3 Nb5 Nb6 Rd8 Ba1 Ba3 c1Q Bf8 Qc3 Bh7 Bc2 Re7 Bef7 Bg7 Rd6 Ra3 Kd3 Bf5 Qc7 Qe6 Bd4 Kh6 Bb2 Kh7 Bc3 Bd5 Rc6 Qh6 Rf6 Rd6 Rg6 Bd7 Bb1 Bc2+ Ke2 Bd1+ Kf2 Bb7 Bbc2 Rd4 Rd6+
1K1NR3/NR3qr1/1R2Rrbp/6NP/3Bb1B1/1bq1BP2/1Qn2Bk1/b3nb2 w - - 0 1 legal: proof: a4 b5 axb5 f5 d4 c5 Kd2 cxd4 Nf3 e5 Ng1 e4 f3 f4 fxe4 f3 e5 f2 Nh3 Qf6 Ng1 Qf3 gxf3 Kf7 Bg2 Ke7 Bf1 Ke8 Kd3 Kf7 Kc4 Ke6 e4 g5 h4 a5 b4 a4 h5 h6 b6 d5+ Kb5 g4 c4 d3 b7 a3 Kb6 g3 Kc7 d4 c5 d2 b5 d3 b6 a2 c6 g2 Qb3+ Ke7 e6 Kf6 e7 Ke5 e8R+ Kf4 e5 Kg3 e6 d1B e7 d2 Na3 Be6 Qb2 Nd7 b8B Rh7 b7 Rg7 Rb1 a1Q Nc2 Ra6 Nh3 g1Q Ba7 Bf5 b8B Ngf6 Ng5 Be4 Bh3 f1B Bg4 Kg2 Bd4 Ne5 Nb4 Bb3 Bba7 Nd3 Kb8 Nd5 c7 Ne3 c8N Nc2 Nc6 d1B Nd8 Rf6 Bce3 Ne1 Bab6 Bde2 Na7 B2d3 Bf2 Qa5 Bde3 Bg6 Bbd4 Bde4 Rh4 Qa2 Bd7 Bef5 Qa3 Bbc4 Ba1 Rg8 Kc7 Rf7 Rb6 Bfe2 Rb8 Nd3 Rb7 Bg7 Rf8 Qe1 e8R Bf1 Rhe4 Qb4 Rb6 Nde1 Kb8 Bc3 Bb2 Rf6 Rf7 Rg7 R4e5 Be4 Bg4 Qab3 Rfb7 Qf8 Ba1 Qf7 R5e6 Qb4 Qc1 Bb3 Bb2 Bd2 Bbd4 Bc3 Qa3 Ba1 Qb2 Qc3
BRqb2k1/3rr2N/PPr1n1bB/p2NN3/Rq5K/1Q4B1/2r3RB/nN1r4 w - - 0 1 illegal: No proof kernel
2B2BN1/1RNBR1p1/qrNn4/1QP2KR1/n3rb2/2qbqq2/k1q2PR1/4B3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 Kf7 Ke3 e5 Ke4 a5 c4 a4 b4 d6 h4 g3 f6 Ke6 c6 a3 f7 a2 h5 g2 b6 Rh7 b7 Ra4 b5 Na6 b8R Qg5 h6 Ne7 c7 Nf5 Ne2 g1Q b6 Q1g3 b7 Qc3 Qc2 Qgd2 Qd3 Qdc2 Na3 Rb4 Rh4 Rb6 Rh2 Be7 f8B Bg5 Rg2 Bf4 Rb1 a1Q Ng3 Bd7 Nh5 Bb5 Nf6 d5+ Kf3 e4+ Kg4 d4 c8B+ Ke5 Bd2 e3 Be1 e2 Ng8 Nd6 Rb4 Rh8 h7 Nc5 Rb3 Ba6 Nb5 Na4 c5 Kd5 Bd7 Qaa2 Re8 Qa3 b8N Qaa2 Qg6 Kc4 Nc7 d3 Nc6 d2 Re7 d1Q Qe8 Bb5 Nh6 Rg8 h8R Qdd3 Rh7 Rh8 Ng8 Qf3+ Kh4 Ba6 Rh5 Rh6 Rb2 Re6 Rhg5 Re4 Bc8 Qfd3 Kh5 Qf3+ Kg6 Bb5 R2g3 Qce3 Bfh3 Qa1 Rg2 Qaa3 Bd2 e1Q Bhd7 Qea1 Be1 Qac3 Ra2 Kb3 Rb2+ Ka3 Rb4 Bd3 Rb1 Nc4 Kf5 Ka2 Rb4 Ra6 Rb7 Rb6 Qg6 Qab1 Qh6 Qb5 Qd6 Qa6 Qd4 Ne5 Qb4 Nc4 Qb5 Nd6+
1Q4N1/Brn1bR2/Bp2Brq1/Pr1P1NR1/n1N1N3/R1Kb4/r1R5/rk2r3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 Kd2 c5 g4 e5 a4 h5 f4 c4 d6 h4 d5 h3 d7 b3 a5 b2 f6 Kg6 f7 h2 Nc3 b1R Nf3 e4 Ra3 Ra7 Rg1 h1R Nd4 Qe8 d8N R8h6 Qb3 Nf6 Nf5 Be7 f8R Na6 Nc6 Nc7 Rf7 e3+ Kc2 e2 Ne4 e1R Kc3 R6h2 Be3 Nd7 Qb2 Ra6 Ba7 Nc5 Rg2 Rh7 Rc2 R1h2 Bd3 Rg7 Qb6 Rb5 Ne5+ Kh7 Qd6 Rg2 Qd8 Rf6 Bf1 Bd7 Qb8 b6 Be2 Bc8 Bd3 Ba6 g6+ Kg8 g5 Na4+ Kd4 c3 Nc4 Rh7 g7 Ra1 Bf1 Re2 Kd3 Ree1 Be2 Rh2 Kd4 Kh7 g8B+ Kg6 Bf1 Rh7 Be2 Ra2 Bf1 Kh5 g6 Kg4 Rg7 Kf3 Be6 Qg8 Rf7 Qe8 g7 Rea1 g8N Rg7 Rf8 Qg6 Rf7 Rh7 Ned2+ Kf2 Ne4+ Ke1 Kd3 Kd1 Rg7 Qh6 Rg5 Qg6 Rh5 Rb4 Ng7 Qe8 f5 Bc5 Re2 Kc1 Rg5 Nb5 Ne3 c2 Bg2 Rf7 f6 Kb1 Bf1 c1R Ngf5 Re1 Rc2 Rf8 Be2 Rb7 f7 Nc7+ Kd2 Bb5 Bc4 Be7 Bf1 Bc6 Ba6 Bd7 Kd3 Bb5+ Kd2 Bd3 Nc4 Nb2 Kc3 Rb5 Bc8 Qc6 Bd7 Qg6 Be6 Re8 f8R Rd8 Rf7 Rf8 Rh7 Rf6 Rf7 Na4+
qN6/Pr3R2/rR2B1Rb/B1rn3R/2Pn1Qbb/1r1NpB2/k1N1Bb2/4K3 w - - 0 1 illegal: No possible last move, all moves rejected
5kNN/1PN2q2/r2Rn2b/b2q1bp1/6Pn/1B2BBN1/Q2qB1q1/R3KR1q w - - 0 1 illegal: No possible last move, all moves rejected
n4B2/2N5/3nNR2/rqBpP2r/BbBPRNKn/1R3r1q/2qRQ3/4n2k w - - 0 1 legal: proof: h4 g5 hxg5 e5 f4 exf4 c4 b5 b4 d6 a4 Be6 a5 Bc8 a6 Bb7 axb7 Be7 cxb5 Bf6 b6 Be7 b5 Bf8 Kf2 Kd7 Kf3 Ke6 g4 Ke5 e4 h5 d3 f5 g6 c5 g5 a5 g7 d5 g6 c4 Bb2+ c3 Bh3 a4 Qe2 h4 Qe1 a3 Nd2 a2 Qe2 Nf6 g8B Qc8 g7 Nbd7 b8R Rh5 b7 Ra5 b6 Ne8 Be6 Bb4 g8R Nd6 Ba3 c2 Nb3 c1Q Rg2 Q1c2 Rf1 a1N Nd4 Q8c4 Bg4 h3 Bf7 h2 Be8 Qa6 Nh3 Qb5 Rhg1 h1N Ne6 Ng3 Rgf2 Be1 Bc5 Bb4 Rfg2 Qcc4 Rgf2 Nc2 Rd1 Qa2 Rd2 Qb2 Re1 Qc3 Kg2 f3+ Kh2 f4 d4+ Kf6 Rff1 f2 Bf3 Ngf5 e5+ Ke7 Be4 f3 Bd3 Nh4 Bc4 Qd3 Kg3 Qf5 Ra1 Ne1 Nhf4 Qh7 Kg4 Qc2 Rg1 f1Q Rc1 Qf2 Rf1 Qe3 Rb1 f2 Rb3 Neg2 Re1 f1R Rc8 Qec3 b8B Rf3 b7 Nb6 Rc6 Na8 Bba7 Q3d3 b8N Qh7 Na6 Qh6 Reb1 Ne1 Nac7 Qhh7 Re3 Qhd3 Re4 Qdb3 Bd7 Kf7 Ng2 Kg6 Ngf4+ Kh7 Qf2 Nb7 Ne2 Kh6 Nd8+ Rf6 Bd6 Qa6 Rb6 Rf7 Ba4 Qb5 Be7+ Rf6 Re6 Nd6 Bc5 Kg6 Bf8 Qbc3 Qe3 Q3b3 Kg3 Kf5 Qd3 Qbc3 Rb3 Kg5 Kh3 Rf2 Nf4 Rf1 Kh2 Kg4 Qe2+ Qf3 Rf6 Rf2+ Kg1 Kg3 Nde6 Qe3 Qd3 Kf3 Kh1 Rf1+ Kh2 Rf2+ Kh3 Rf1 Rd1 Kf2+ Kg4 Kg1 Qd2 Kh1 Qe2 Qed3 Rd2 Rf2 Qe3 Qf1 Qd3 Rf3 Qe2 Qh3+
nB1q4/1qR2N2/p1K2n2/1rRNP3/3b2nR/PQrr1R1n/6NN/k4BrB w - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 Qf6 h3 Qd8 Kd2 g5 Ba3 g3 Bg2 g4 Bf3 b6 Ke1 Bb7 Bg2 Bf3 Bf1 g2 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 Kd2 Kf7 Ke3 Ke6 Kd4 h5 f4 d5 c4 b5 e4 b4 a3 a6 c6 h4 c7 h3 c8R h2 c5 b3 g5 b2 f5+ Ke7 e6 Nh6 f6+ Ke8 f7+ Ke7 g6 Kf6 e7 Bg7 e8B Ng8 f8N Nd7 c6 Rh3 c7 Rb8 Qb3 Rb5 Nc3 b1Q Nf3 g1R Ne6 g2 Bf4 Nb6 Bc6 Na8 Bd6 Bh8 g7 Qb2 Nf4 Rg3 Kd3 d4 Kc4 d3 Bb7 d2 Ncd5+ Kf7 Rb1 Nf6 g8N d1R Nh6+ Kg7 Nf7 Rd3 N3e5 Rge3 Ng4 Rc3+ Kd4 Red3+ Ke5 Qf2 Re1 Qa7 Re3 Qb6 Bc6 Qb7 Rf3 Nh5 Ne2 Kg6+ Ke6 Bd4 e5 Nf6 Nc1 Qg8 Ne2 Qh8 Ke7 Qg8 Nef4+ Kf5 Rf2 Ke4 Rf3 Nh5 Kd7 Qg5 Bc5 Nf6+ Kd6 Qg8 Ba7 Qe8 Bb8 Qh8 Rd8 Qg8 Rd7 Qd8 c8R Re3 Rf2 Rh3 Ne2 Kd3 Ne7 Kd2 Be4 Rhd3 Nf4+ Kc1 Rc6 Rd1 Ned5 Rd3 Qc4 Kb1 Rc5 Ka1 Qb3 Qdc8 Rdc7 Qh8 Be2 Re1 Rff1 g1N Rf2 Qbc8 Kc6 Qhd8 Bg2 Red1 Rf3 Rf1 Rh3 Rfd1 Rh4 Nh3 Rf1 h1N Nh2 N1f2 Bh1 N2g4 Ng2 Re1 Rf3 Rg1 Bf1 Qb7+
b1rkNR2/B6n/3nn1rQ/1N3p2/B1P3n1/5P2/1bBb1NRR/1Nn1bK1B w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 d3 Qd5 exd5 c4 Ke2 cxd3+ Kd2 Bb7 Ke1 Bc8 b4 h5 g4 f5 f3 e5 g6 a5 g7 a4 d6 e4 b6 e3 b7 e2 d7+ Ke7 d8R a3 b5 h4 b6 h3 g5 a2 g6 h2 Be3 Ra6 Nh3 Nf6 g8B Bh6 g7 Nbd7 b8N Nc5 b7 Nh7 Qc1 Ne6 Bg2 d2+ Kf2 e1B+ Kf1 d1N Nd7 d3 b8N d2 Ba7 Be3 Rf8 Nf2 Nf6 d1N Ne8 Ng4 Nf2 Nc3 Nc6+ Kd7 Nd4 Nb5 c3 Nd6 Nb5 Kd8 Rg1 Bf4 Bh1 Bfd2 Rg2 Bb7 Bf7 Rc6 g8B Ba8 Bg6 Rc8 B8f7 Rg8 c4 Nc7 Bd5 Ne6 Be4 Rg7 Bf7 Rg6 Bc2 Ngf6 N1a3 Ng4 Rb1 a1B Rb2 Ne5 Ra2 Bb2 Nb1 Ng4 Bg8 Neg5 Bd5 Ne6 Bde4 Ne5 Ba4 Nd3 Qc3 Nc1 Qg7 Be5 Bec2 Bb2 Rg4 Nd3 Qh6 Nc1 Bg2 h1N Rh4 Rg3 Rh2 Rg6 Nd1 Ba1 Be4 Nf2 Bh1 Ba5 Rc2 Ng4 Rcg2 Bab4 Nf2 Bbd2 Bec2 Bb2
R2BNRR1/3PP1n1/q1k2b2/4rp1B/2N5/nb1KBbBp/r1n3Nr/3N3Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 Ke2 c5 b4 f5 g4 a5 d4 h5 g6 a4 e5 f3+ Kd3 a3 b6 f2 b5 a2 e6+ Kd6 g5 h4 e7 Ra7 g7 Nf6 g8N Rd7 g6 Nh7 g7 Nc6 b7 Kc7 b8B+ Kb7 b6 Ng5 d6 Ne6 d5 Ncd4 Be2 f1B Be3 Bg2 Nc3 Bf3 Nh3 Nb5 Nf4 Na3 Nf6 h3 g8R Bg7 Ne8 Bf6 Ng2 Ng7 Rf8 Rc7 Qb1 Be6 d7 Qc8 d6 Bb3 d8B Kc6 d7 Qb7 Nd1 c4+ Kd2 c3+ Kd3 c2 Rg1 Qa7 b7 Rh4 Qc1 Re4 Qb1 Rc8 Bg3 Re5 Qc1 Ra8 b8N+ Kb5 Nc6 Qa6 Qb1 c1R Na5 Rc2 Nc4 Kc6 Qc1 Bd5 Bh5 Bf3 Rb1 a1N Rb2 Ba2 Rb8 Bb3 Qb1 Ra7 Ra8 Rb2 Qc1 N1c2 Nf4 Qb5 Nd5 Ne6 Bh4 Na1 Nf4 Nb1 Rgg8 Rh2 Nf2 Nc2 Qh1 Ra2 Bg3 Qa6 Ng2 Nba3 Nd1 Ng7
3qR1Nr/n4R2/1qB2RNb/1b6/2NQ2q1/p1nNKP2/r1pBPRn1/1k2B3 w - - 0 1 illegal: No proof kernel
RQRb2n1/1bB1q1R1/6B1/q1r1n2N/1pBR3K/n1r4p/1PrB2PN/2N4k w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 gxh4 Qa4 Nh6 Qxa5 d5 cxd5 Ng8 Qa4+ Nd7 Qa7 Nb8 a4 Kd7 d4 Kd6 f4 b5 Kf2 h5 f6 c5 f5 e5 a5 b4 a6 h3 Kg3 h2 f7 c4 f6 e4 Nf3 c3 Bc4 c2 Nc3 e3 Kh4 e2 Bd2 c1R Na2 Rc3 Nc1 Nd7 Qb8+ Qc7 a7 Be7 f8R Bb7 Rc8 e1N Rf1 h1Q+ Nh2 Ne5 Ra4 Bf8 f7 Nf6 Ra5 Bh6 f8N Nc2 Ne6 Na3 Nf4 Qg1 Rf3 Qe1+ Rg3 Bf8 Ra4 Be7 Ra5 Qe4 Rg7 Bd8 Ra4 Qf5 Ra5 Qd7 Ra4 Qe7 Ra6+ Kd7 d6 Qa5 d5 Rf8 Kg5 h4 Nh5 h3 Kh4 Rc2 Bg5 Rh8 Bd2 Ke8 d7+ Kf8 Rg4 Kf7 Rd4 Kg6 d6 Kf5 Rg4 Bb6 d8R Rh6 Rdg8 Bd8 d7 Rg6 Rd4 Rg3 Rg7 Rb3 Qd6 Rb8 a8B Rbc3 Rcc6 Rc8 Qb8 Bc7 d8B Bb6 Rcd6 Rc5 Rc6 Bc7 Rd7 Bb6 Rc8 Ke4 Bc7 Kf5 Bd6 Bd8 Bc7 Ke4 Be1 Ke3 Bd2+ Kf2 Rd4 Kg1 Ra7 Bf3 Be4 Kh1 Bg6 Bb7 Ra8 Ng8+
4B2r/B2B3N/2q2bRn/1Bb1Np1P/1nbQrPpR/2N2R1K/1q4Rn/k7 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 f4 Ke7 Kf2 Ke6 Kg3 f5 c4 g5 h4 d5 e4 a5 b6 d4 h5 a4 b7 d3 c6 a3 c5 a2 c7 d2 c6 Qe8 Bb5 Ra6 Nc3 Ra7 Rh4 Ne7 Nf3 Na6 b8R Ng8 Rb6 Nh6 Bb2 Bd7 c8B Nb4 c7+ Bd6 Kg2 g3 Kh3 g2 Qg1 d1N Qd4 Ne3 Rg1 a1B Bc1 Neg4 Be3 Ra4 Rc6 Ke7 e6 Bc5 e5 Nh2 Rb6 Bc6 Bd7 Bd5 c8R Bc4 Rf1 g1Q Rf2 Rg8 Rg2 Qb1 Rc7 Rh8 Bg1 Kf8 e7+ Kf7 Rg6 Qb2 Rb7 Qc8 e8N Qc6 Nf6 Ke7 Nh7 Kf7 e6+ Ke7 Qf2 Kd6 Nd1 Kd5 e7 Ke4 e8B Kd3 Rb8 Rf8 Nc3 Rh8 Nd2 Kc2 Nf3+ Kb3 Ne5 Ka3 Nd5 Ka2 Qd4 Qc2 Rc8 Bc3 Ra8 Qb2 Be3 Ka1 Rb8 Be1 Nc3 Bf2 Ra8 Be7 Rc8 Bf6 Na2 Ra3 Qa7 Be2 Ra8 Bd3 Qb6 Rb3 Ra3 Bc4 Qc5 Rc3 Qd5 Rc2 Ba7 Re2 Rf3 Bc5 Qd4 Re4 Nc3 g4+
rrNR4/n1q4B/1N6/1PkpR1rN/1nb1RBq1/Kp4bQ/5NqP/4BB2 w - - 0 1 illegal: No proof kernel
Q3B1Rn/Rr2R3/1n3Bn1/KPp3N1/p1k4b/r2bP2q/1bN3Nq/B3RN2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Kd7 d4 Kd6 Kd2 a5 Kc3 g5 h4 f5 b6 f3 b7 f2 h6 g4 e3 g3 h7 g2 h5 f4 h6 c6 Nd2 f3 Bb5 f1N Qa4 f2 Ne2 g1B Nf4 Ra6 Ng2 Nd7 b8N Ra8 Na6 Qe7 Bb2 Ng3 Nf1 Qd8 Kc4 Ke7 d6+ Kf7 d5 c5 Bf6 Nh5 Bc6 Nb6+ Kb5 Nf4 d7 Rb8 d6 Qc7 d8R Ke6 d7 Rb7 Re8+ Ne7 d8R Ng6 Ra3 Rg8 h8B Qh2 h7 Bg7 Ba1 Bb2 Bf6 Rf8 h8N Bd7 Nf7 Nh8 Rb8 Bc8 Bd7+ Kd5 Ng5 Neg6 Re7 Rg8 Be8 Bf5 Bd7 Rg7 Rg8 Rf7 Ra2 Rf8 Qa3 Ra8 Be8 Bb1 Nb8 Bc2 Nc6 Bb1 Nd4 Be4 Ng3 Raa7 Nc2 f1Q+ Ne2 Qf3 Ng3 Bf2 Re1 Qfh5 Qa4 Q5h3 Nf1 Bh4 Ra3 Ra8 Ra2 Rd8 Ka6 Kc4 Qc6 Rd4 b5 Rd3 Qc8 Rc3 Qa8 Bd3 Ra4+ Kb3 Rae4 a4 Ka5 Qe5 Rd7 Qeh2 Ree7 Kc4 Rc7 Ra3 Rcd7 Rb8 Ra7 Rb7
Nn1kN2n/4r1K1/bqBBq2P/3N2R1/1q2b1NQ/1p1pRr2/1P3R2/R3B1n1 w - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 f5 exf5 c5 d4 cxd4 a3 b4 Be3 b3 Bf4 e6 Bc1 Bb4+ axb4 Ba6 Qg4 Bb7 Qd1 Bc8 Kd2 a5 Kd3 d5 f4 g5 h4 e5 c4 g4 f6 g3 f5 a4 h6 a3 h7 g2 f7+ Kd7 f8R a2 c5 Qf6 h5 Ba6+ b5 Qg7 c6+ Ke7 h6 Nf6 c7 Qg8 c8N+ Kd7 Nb6+ Kc7 Re8 Qg6 Nh3 g1N Nf2 Nfd7 Rh5 Nh3 Qg4 Qc6 f6 Bb7 f7 Rf8 h8N Ng1 Bg2 Ba6 Rg5 Qe6 Qh4 Ra7 Bd2 Rb7 Re7 Kd8 Na8 Rc7 Be1 e4+ Kd2 e3+ Kd3 e2 Ng4 Qb6 Re3 Rb7 Nc3 Ne5+ Kd2 Qe6 b6 Re7 b7 d3 Bh1 d4 Bc6 Rfe8 f8R Nf7 Rb1 a1Q Nd5 Qa3 Rd1 Qad6 Ra1 Ne5 Rf2 Nf7 Rh2 Rf8 Rf2 Nd7 b8B Qb4+ Nc3 Qb6 Bd6 Nb8 Nd5 Ne5 Ng6 Rf3 Ngf6 Nf7 Ne5 Rg3 Neg4 Rf3 Kc1 d2+ Kb1 d1B Ne8 d3 Kc1 Qc5+ Kd2 Qb6 Kc3 Qc7 Bd2 e1Q Kd4 Be2 Bc1 Qea5 Bd2 Bf1 Be1 Bg2 Rge5 Qcb6+ Ke4 Rh3+ Kf4 Be4 Rf5 Ne5 Kg5 Rf3 Kh5 Qab4 Kg5 Qc8 Kf6 Nf7 Kg7 Qe6 Rg5 Nh8+
rNq2B1b/2kNqR1q/4b2p/1R6/K3PnBr/3BR1Np/P2BR3/n4Q1n w - - 0 1 illegal: No possible last move
2bRBb1N/nN3R2/1R2pqr1/N2Q1r1P/2KNq3/4Pq1B/1bB4p/1n2kB2 w - - 0 1 illegal: No proof kernel
n4b1b/1b1r1k1B/Br1P4/p2P4/1q1B1pRN/RNr5/K4QN1/qNBR3n w - - 0 1 illegal: No possible last move, all moves rejected
r1n2Rq1/5bnK/Q1qp1N2/2bB1NRB/rnB1P1P1/p3R2q/1B1k3N/1R6 w - - 0 1 illegal: No possible last move
2B1qN2/1r2RqbQ/RPn1PnR1/1N2kp1R/N1p5/1b5N/rn4B1/1q2K1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 b4 a5 g4 c5 b6 h5 b7 f5 e5+ Kc7 b5 c4 b6+ Kd7 g6 a4 g5 a3 g7 a2 d6 Ke6 d7 f3 d5+ Ke7 d6+ Ke6 g6 h4 Nc3 h3 Be3 h2 Na4 Na6 b8N Rh4 Nh3 Rh5 Nc6 Qc7 d8R Qf7 d7 Nb4 Bg1 Rh7 Na7 Nf6 g8B Bg7 Bg2 Nc6 Nb5 Ba6 Rc8 Bb7 Rc7 f2+ Kd2 f1Q Qh5 Qf3 d8N+ Kd5 Re7 Qe4 Ne6 Ra5 Re1 a1Q Nf8 Qb1 Re3 Bc8 Ra3 Bd7 Qh6 Qe6 Bf7 Ra7 Be8 Qf7 e6 Ke5 Nac3 Qf3 Ra6 Qh5 Na4 Rb7 Be3 Rh8 Qh7 Rg8 Rc1 h1N Bg1 Nf2 Ke1 Nd1 Rc3 Bh6 g7 Nb2+ Rc1 Rh8 g8R Bg7 Rd1 Bc8 Bd7 Qe8 Rc1 Qhf7 Qg6 Rh6 Rh8 Rh4 Rh5 Rf4 Qh7 Rf3 Ke2 Ra3 Rc3 Ra2 Rg3 Ra7 Rg6 Bb7 Ra5 Ba6 Bc8 Rb7 Nd4+ Bb5 Ra6 Qd3+ Ke1 Qc2 Nc5 Ba4 Nb5 Bb3 Na4 Qb1+
3nK3/kN6/PN5q/nrB1pN2/p1bq2B1/1RBrBRQP/4qb1N/5R1b w - - 0 1 illegal: No proof kernel
2RnbBq1/qq3P2/1n1rrK1b/PpQp1BBB/k1NR4/1N6/N1N5/2n2R2 w - - 0 1 illegal: No possible last move, all moves rejected
2K4n/1p5B/QNr2rRP/q2Br2N/N1B1bPN1/b2p4/n1RB4/2qk1q1R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 Kd5 g5 h4 e4 c4 b3 f4 b2 a4 d6 h6 e3 h5 e2 a5 e1R h7 g4 c6 g3 h6 g2 a6 Re8 c5 Qc7 a7 Na6 Qa4 Re3 Nh3 g1Q Nc3 b1Q Nf2 Qb2 Ra2 Qb3+ Bc4 Qb8 c7 Qg7 c6 Qb1 Rc2 Qg1 Bd2 Qgc1 Qa5 Qf1 Na4 Qbc1 Qb5 Bd7 c8B Qc7 Qa5 Be8 Be6 Rc8 a8N Bg6 N8b6 Qd8 c7 Nb4+ Kd4 d5 Qa6 Ne7 Kc5 d4 Bed5 Rg8 h8R d3 Kb5 Rg7 Rg8 Re5 Kc5 Bh7 Kb5 Ng6 Ng4+ Ke7 f6+ Kd6 f7 Nh8 Ka5 Na2 Kb5 Be7 f8N Rg6 Ne6 Rf6 Ng7 Be4 Nh5 Bf8 Rg6 Be7 Nc3 Bf8 Ka5 Kc5 Nca4+ Kd4 Kb5 Ba3 Ka5 Ra8 c8B Rb8 Be6 Rc8 Bg8 Rcc6 Bh7 Qf8 Nc8 Rff5 Be1 Qd8+ Kb5 Rc7 Kb6 Rc6+ Ka7 Qa5 Kb8 Rf7 Ncb6 Rff6 Nh2 Ke3 Bd2+ Ke2 Ng4 Rcd6 Kc7 Kd1 Kc8 Rc6+
b1nB4/Rpr3b1/p3P3/N3NnRq/k1B3Rq/3bP2K/3QN1r1/1B1R2Bn w - - 0 1 illegal: Other
R2KQ1BB/p1Br2bN/r2P4/1qbR2q1/1N5k/P2rnR1N/1b2pR2/n3N3 w - - 0 1 legal: proof: g4 c5 e4 f5 b4 g5 bxc5 d5 gxf5 g4 h3 g3 Ba6 Be6 Be2 dxe4 Bf1 Bf7 Qg4 Bh5 Qd1 Bg4 hxg4 Qd7 Rh5 Qd5 Rh1 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 d4 h5 c4 h4 g5+ Kg7 Ke5 b4 Ke6 g2 f4 h3 a3 h2 f6+ Kg6 f5+ Kh7 d5 b3 f7 e3 f6 Kg6 c6 b2 c7 e2 c8R Kh5 g6 Rh7 c5 Rh8 c6 Qc7 g7 Qg3 c7 Kh4 Ra2 e1B Qa4+ Qf4 Rd8 Kg4 c8N Nd7 Nh3 g1B Bc4 Rh7 Nb6 Qg5 Nd2 b1Q Bb2 Bc5 Rf1 h1R Rf3 Nh6 g8R Bg7 f8B Nf5 f7 Kh4 Be5 Rh2 Bc7 Ne3 d6 Rc8 Nd5 Qb5 Nb4 Rg2 Rh8 Rg3 Re8 Bb2 Bg7 Rb8 f8N Rb6 Ra8 Ra6 Kf7 e5 Ke8 e4 Bg8 Bf2 Bf6 Bcd4 Kd8 Nc5 Rb8 Nb3 Ra8 Qf1 Qe8 Qb5 Nd3 Na1 Nb4 Bc1 Rc2 Bcb2 Rc5 Bdc3 Rd5 Be5 Be7 Bg7 Bf6 Rh6 Nh7 Rg6 Be7 Re6 Bf6 Re7 Bc3 Ng4 Bf6 Bc5 Rf2 Rd3 Nf3+ Kg3 Ne1 e3 Bf7 e2 Rf8 Kh4 Bg8 Ne3 Rf3 Bh6 Bh8 Bhg7 R8f6 Rd1 Rf2 Rd3 R6f3 Rd7+
bBb2Q2/p4pR1/3qNNqr/P2B1k2/1R2nBN1/P1RKb3/Nn2nB2/7r w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 e5 g4 Qd7 gxh5 Qe7 f4 Qa3 bxa3 exf4 h4 Kd7 d4 c5 Kd2 b5 e4 g5 e5 c4 h6 g4 h7 f3 h5 g3 a5 f2 e6+ Kd6 h6 b4 e7 b3 e8N+ Ke7 d6+ Ke6 d7 g2 d8R b2 d5+ Ke5 d6 c3+ Kd3 c2 d7 Bb7 Nf3+ Ke6 Nh2 g1N Bf4 c1Q Nf6 Ne2 Nc3 Bb4 Rg1 Nc6 Nhg4 Rb8 Na2 Ba8 Bg2 f1B Rb1 Kf5 Bd5 Rb6 Rc8 Qc5 d8N Bh3 Ne6 Qd6 Qc1 Bd2 Qc5 Be3 Rg3 Qc7 Qf8 Qd6 Rc7 Nd8 Rc3 Nb7 Ne5 Rc6 Rg7 Ra6 Neg4 Nc5+ Kc2 Na4 Kd3 Ne7 Ne4 Nc8 Nef6 Rg8 h8B Rc6 Rbc1 b1Q+ R1c2 Qg1 h7 Ra6 Rb2 Qg3 Ne5 Qg6 Rb8 Rb6 Neg4 Rb1 Rb4 Rh1 Qe7 Rd8 Qf8 Re8 Rg8 Re7 Bg7 Rc7 h8B Rc6 Bgh6 Ra6 Rg7 Rc6 Bhg5 Ra6 Bh4 Nb2+ Kc2 Qb8 Bf2 Nd6 Nc1 Ne4 Na2 Na4 Kd3 Qd8 Bb8 Qd6 Rh7 Rc6 Bg7 Ra6 Bh6 Rb6 Bf4 Nb2+ Kc2 Ra6 Rg7 Qc5 Nc7 Qg5 Ng8 Rh6 N8f6 Qd6 Ne5 Qg3 Rb5 Qg6 Rb4 Nd1 Kd3 Bg4 Bh2 Kg5 Bhg3 Bf5 Neg4 Bc8 Ne6+ Kf5 Bf4 Nb2+
N1k5/4BBRb/1rb2KRP/2R1bpn1/Pb1N3p/b3BRr1/2n1B3/3N1qQ1 w - - 0 1 illegal: No proof kernel
3RB3/3N1KR1/Ppnb4/BP1n1N2/1b1Qn3/kN3qBn/3RprN1/2R1r2n w - - 0 1 illegal: No proof kernel
2BB2kN/4RpPb/1rQ1p1BR/1R3nR1/1b2r2q/rP1r4/4Bn2/2rNKN2 w - - 0 1 illegal: No proof kernel
B7/2NRpBK1/3qQ1pn/3nr1P1/1B1bRrn1/6nn/1b1NPk1N/2N2B1R w - - 0 1 legal: proof: g4 c5 d4 f5 dxc5 b5 a4 Bb7 axb5 Bf3 h3 fxg4 Qd3 g3 Qd1 Bg4 hxg4 Qb6 Qd5 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 Kg6 Ke4 a5 b4 h5 f4 g2 c4 a4 b6 d6 b5 h4 f5+ Kf6 g5+ Kf7 b7 a3 f6 Kg6 b6 Kh5 Kf5 d5 c6 h3 c5 Kh4 Kg6 Kg3 c7 h2 c8B d4 c6 a2 c7 d3 f7 d2 Ba3 Nd7 b8N Ra6 Bb4 Rh7 Qb3+ Kf2 Nc6 d1N b7 Ngf6 b8N Ra5 Nd2 Rc5 Bb7 Ne3 c8B Rh4 Nd4 Ned5 Ngf3 g1N Ba8 Ng4 Na6 Nh3 Nc7 Nh6 Rd1 N7f6 Be6 a1B Qc4 Rf4 N4b3 Nfg4 Nc1 Qd7 Kh7 g6 Qa6 Bfg7 f8R Bgb2 Bf7 Ng8 Qe6 N8h6 Rd8 Qd6 Rd7 Ndf6+ Kg7 Re5 Ndb3 Nd5 Rd4 Nc3 Rc4 Nd5 Re4 Bd4 Nbd2 Bab2 Rg1 h1N Nh2 Ng3 Rh1 Rf3 Bg8 Rf6 Bf7 Rf4
BK2R3/Pr1b1p2/b4Rn1/Bb3RBQ/kq3N2/2RNb2n/bp2P3/B1r4N w - - 0 1 illegal: No proof kernel
3Q4/NNRK1B2/5r2/3pb1pq/1nB4b/n1r1k1B1/RP2NNPB/r1r2bR1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 Qb6 h5 Qg6 hxg6 Bg7 Nc3 Bh6 Nb1 Bf8 Ke2 a5 Kd3 h5 Ke4 e5 Kd5 Ke7 f4 Kf6 c4 d3 c5 a4 b6 h4 c6 h3 g7 d2 b7 e4 c7 h2 Ra2 e3 Nh3 a3 Bc4 e2 Nf2 e1B Rg1 h1R Nc3 R8h6 Ne2 Ne7+ Kd6 Nbc6 b8B Nb4 g8B Ba6 c8N Nc2 Na7 Bg7 Bgf7 Nc6 Kc7 d6 Kd7 N6b4 Bc7 Rc8 Bb8 Bh8 Bc7 Kg7 f6+ Kh7 f5 d5 Bg3 R1h3 Bh2 Rc3 Bg3 Nd4 Qc2 d1Q Bcf4 Nb5 Qa4 Rg6 Qa5 Kh6 Bh2 Kh5 Bfg3 Rc1 Qd8 Rc6 Bd3 R6c3 Bc4 Bg7 Be6 Rh6 f7 Be5 f8R Rg6 Rf7 Rf6 Ne4 Kg4 Rh7 Rh6 Bf7 Bf2 f6 Kf5 Bf4 Bh4 Bfg3 Rg6 Nf2 Rh6 Nd3 Ke4 Nf2+ Ke3 Be8 R1c2 f7 Rc1 f8N Rb6 Bf7 Rf6 Ra1 a2 Ne6 Na3 Nc5 Qc2 Nb7 Qg6 Rb1 a1R Rg7 Qh5 Rh7 Nac2 Rg7 Ra5 Ra1 Na3 Ra2 Rc5 Rg8 Ra1 Re8 Rc8 Re6 Rc5 Rc6 Rcc1 Rc7 Rcc6 Bb3 R6c3 Bc4 Rb3 Nd4 Rbc3 Bb3 Bf1 Ne2 Ra6 Bc4 Rf6
3q1N2/brr2bK1/R3R3/N1pBRB2/nB2rR1b/1N5P/Q3p2P/nBr3k1 w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 h5 b4 f5 bxa5 fxe4 Na3 h4 Nb1 h3 gxh3 Ra7 Nc3 Ra6 Nb1 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 g5 a4 b5 d4+ Kb4 f4 c5 d6 e6 f5 g4 d7 g3 d5 g2 d6 e3 a6 e2 a5 Kc4 a7 b4 a6 b3 f6 b2 f7 Rh7 Qa4+ Kd3 Bd2 Bb7 Bb4 Ke3 Na3 Kf2 Nc4 e1B Ne2 g1R Qa2 b1R Na5 Ne7 Kf6 e5 Nc1+ Rb2 Ncb3 e4 Bd3 e3 Bc2 e2 Bf5 Bd5 Bb1 Bh6 f8N Bf4 Bf5 Rg4 Rf1+ Kg2 Bb1 Bf7 Rf3 Bfg3 Rf4 Nbc6 Bf5 Rc8 a8B Rc7 a7 Kg1 Bb7 Rgh4 a8B Nd4 Bbe4 Nc2 Bad5 Rb1 Bd3 Rc1 B3e4 Qe8 d8R Nc8 d7 Nb6 Ra8 Bef2 d8R Na4 Rd6 Rb7 Re6 Qd8+ Re7 Be1 Ra6 Rc7 Rb1 Na1 Rb2 Rg7 Bb1 Bef2 Rd2 Rhg4 Rdd4 Rb7 Rfe4 Bb8 Re5 Ba7 Rf4 Be1 Rf2 Re4 Rf4 Rg5 Ree6 Bh4 Re5 Rh5+ Kg7 Rh6 Re8 Rc6 R8e6 Rcc7
2K1b2k/r4Q1B/2PRbnBB/N4q2/1bbNPpnN/nN2pR2/8/2B1rR2 w - - 0 1 illegal: No proof kernel
4k3/r1B2n1n/r1Pq1R1p/1QBNNnpR/N1KbN1nP/8/1B6/R2Rbb2 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 e6 g4 Nc6 gxf5 Nb8 Bg2 Qc7 Bf3 Qd8 Bd5 exd5 Kd2 g5 Kc3 a5 b4 d6 f4 h6 e4 d4+ Kc4 d3 c6 d2 f6 a4 b6 a3 f5 a2 b7 Ne7 b5 Nd7 b8R Ra7 b6 Bg7 f7+ Kf8 b7 Be5 c7 Ra3 Qe2 d1N Nc3 Bg7 e5 Ng8 e6 Ra8 Nd5 Ra7 Nf3 Ndf6 Ne5 Ne7 Bb2 Bd7 c8N Nh7 Ncb6 Nc3 Na4 Nb5 Rad1 a1B Ra8 Bc8 b8B Ba6 Bc7 Rg8 c3 Bh8 h3 Rg6 Qf1 Ng8 Qe2 Ngf6 Qf1 Ng4 e7+ Kg7 e8N+ Kf8 Nef6 Qb8 Nb4 Bg7 Ne4 d5+ Kc5 d4 c4 d3 Nd5 d2 Kb4 Rb7 c5 Ra7 Kc4 Rb6 c6 Nd6+ Kc5 Bf6 Qb5 Bh8 Nf3 Bc3 Ne5 Bd4+ Kb4 Bf2 Rh2 Be1 Kc3 Kg7 f8R Nf7 Kc4 Qd8 Rh1 Qd6 Rh2 Nh8 Rf6 Nf7 Bd8 Kf8 Bc7+ Bc8 Re6 Rba6 f6 Nd8 f7 Bd7 Bc1 Bd4 Rf6 Bf5 Bb2 Bd7 Nf4 Ke7 f8B+ Ke8 Be7 Bc8 Nd5 Nf7 Rb1 d1N Bf8 Nc3 Rd1 Ne2 Be7 Qe6 Bc5 Ng3 Rhf2 Nf5 Rf4 Nf2 Rh4 Ng4 Rh5 Qd6 h4 Nh2 Rb8 Nf1 Qb7 Nh2 Bba3 Ng3 Qb4 Nd8 Qa5 Nf7 Rbb1 Bh3 Bb2 Nf5 Ra1 Ng4 Qb5 Bf1+
nnR1N3/2B5/1p1N3B/1R1QpbnP/n2N1b2/1BRq4/r1PK3b/Nk1B1r2 w - - 0 1 illegal: No possible last move
1n1NRB1R/rBbPr1N1/pr2Rp1K/1B6/B1nR4/nq3Pn1/k3b3/N1Q5 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 e3 c4+ Kd4 h4 g6 f3 a6 b6 e2 b7 e1N h6 Qd7 h5 e5 c6 e4 c5 e3 c7 e2 c6 Kc4 d4 Bg7 d5 Qd6 h7 Bf8 h6 Nd7 b8R Qb4 d6 Nd3 Nh3 e1N Na3+ Kc3 Nf4 Ra7 Nc2 Kb3 Ra4 Ngf6 Ne6 Nh5 Ng7 N3e5 Ba3 Nc4 Qc1 Ka2 Na1 Qb3 Rh3 Bb7 c8B Ng3 c7 Be4 Bb7 Nc2 Re8 Nb8 c8B Bd3 Bd7 Be2 Rb4 Rg8 Ba4 Rh8 d7 Bd6 Rb6 Bc7 Bf8 N2a3 Rh4 Rg8 h8N f6+ Kg4 g5 Nf7 Rh8 Nd8 Rh7 Rc6 Qd1 Rce6 Qb3 Nh5 Re7 h7 Ne4 Kf5 g4 Kg6 g3 h8R g2 Ng7 g1R+ Kh6 Rg5 Rg4 Ng3 Rh4 Rb5 Rd4 Bd1 Be2 Rb6 Bd3 Nd2 Bc4 Be2 Bcb5 Ndc4
2kN1Nn1/b2p2nR/r1nQP1N1/1RrN1p2/2b2PB1/q3RbB1/4B3/1BbK4 w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 c4 a5 g4 h5 e4 f5 c6 a4 c7 h3 b6 h2 b7 h4 g5 a3 c5 a2 g6 h3 c6 Qe7 g7 Rh7 Nc3 Ra7 Nf3 Ra4 Nd4 Rc4 Ne6 Qh4 Rb1 a1B Be2 Rd4 Bf4 Ra4 Bg4 Nh6 g8B Bc5 Nf8 Qd8 Qd6 Bd4 Ba2 Ba7 Nd5 Na6 b8N Bb7 c8R Ng8 c7 Nb4 Bg3 Bb2 Nc6 Rh5 Be2 Rh4 Kd1 Bc1 Rb8 Rg4 c8N Qa5 Rb3 Rf4 Re3 Ba6 Bh4 Ra3 Bg3 Rc3 Rb7 Rc5 N8e7 Rg4 f3 Qa3 Neg6 Rf4 Bb1 Rg4 Nd8 Nc6 Nf7 Bd3 Rb4 Rh4 Rb5 Rg4 Ng5 Kd8 Nge6+ Kc8 Nd8 Rh4 e6 Rg4 e7 Rf4 e5 Ra4 e8B Bc4 e6 Ra5 Nh4 Ra6 Rf1 h1B Bh5 Bg2 Nhg6 h2 f4 h1N Bh2 Ng3 Bhg4 Be4 Rh1 Nh5 Bg3 Ng7 Rh7 Bf3
n1n1r3/PKb1N3/B1Q1B1N1/p1R1R3/2N3n1/BR3n2/qNp1bPb1/4Br1k w - - 0 1 illegal: No proof kernel
RRb2rkr/2b3n1/1nN3q1/BBqR4/1P1p3K/B2P4/2pQ1RqN/1B1Nq3 w - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 g5 a4 f4 h4 gxh4 a5 f3 exf3 c6 f4 Nh6 f5 Qb6 axb6 Ng8 f4 Kf7 Kf2 e5 g4 d5 g5 a5 b7 h5 f6 a4 f5 h3 Kg3 c5 b6 h2 Nc3 d4 Nf3 e4 Kh4 c4 Ba3 Nd7 b8R e3 b7 Nh6 g6+ Kg8 g7 e2 Ra2 Nb6 f7+ Kh7 f6 Bd6 f8B Bc7 Rb2 Kg8 Bd6 e1Q+ Bg3 Qe7 Qe2 Qe5 Nd1 c3 Ra2 c2 f7+ Kh7 f8R Qc5 Rg1 h1Q+ Nh2 Qhc6 Rf2 Qg6 g8B+ Kg7 Bf4 Kf8 Rg5 Nf5+ Kh3 Ng7+ Kh4 Ra7 Bc4 Ra8 Rd5 Kg8 Bg5 Qe8 Bd8 Qg6 Bb2 a3 Ra1 a2 Ba3 Qa5 Bb5 Qa7 d3 Qa5 Qd2 Qa7 Bg2 Qa5 Rc1 a1Q Be4 Qc3 Ra1 Qcc6 Bf3 Qce8 Bg4 Qe1 Bgd7 Qa7 Bc4 Qa5 Ba2 Qc5 Bb5 Qge8 Kg5 h4 Bb1 h3 Ra2 Kh7 Kh4 Qg6 Nf3 h2 Ra1 h1Q+ Nh2 Qhg2 Ra2 Bd6 Ra1 Nc4 Ba5 Nb6 Bc1 Ra7 Ra4 Ra6 Ba3 Na8 Bb6 Bh3 Rg8 Bc7 b8N Bf5 Ba7 Re6 Bb6 Rf6 Nc6 Bg4 Rgd8 Rff8 Rb8 Bh3 Ra7 Bc8 Ba5 Nb6 Raa8 Kg8+
1n5n/1R1N2B1/2b2PKn/2pRQ1B1/PbqN2r1/kp1B3N/1r1Nn3/3qBR2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 e5+ f6 b5 h4 c6 a4 e4 d4+ Kd6 f4 b3 f5 c5 h6 b2 h5 e3 h7 b4 h6 b3 Qe2 Bb7 Kg6 Bc6 f7 Qh4 Nd2 b1Q Nh3 Qhe4 Qe1 e2 Rh2 Be7 f8N Bd8 Nd7 Ba5 Rh1 Kc7 d6+ Kb7 d5 Ka6 Qg3 Qc4 Qe5 e1N Bd3 Nf3 f6 Bb4 Rf1 Ka5 Ra2 Ra7 Rc2 Qf4 Rc4 Ng5 Rd4 Ba3 Rb4 Qc4 Rb7 Bb4 Nf3 Ne6 Bg5 Nd8 Nd2 Nf7 Nb6 Qb2 d7 Qb1 d8N Qd1 d6 Ra8 d7 Ra7 Ne6 Ra8 Bf4 Ra7 Kf5 g5 d8B g4 Kg6 g3 Bg5 g2 Nd4 g1N Bc7 Ne2 Bd8 Ra6 Nd7+ Rb6 Bc7 Bc3 Bd8 Kb4 Bc7 Rb5 Ba5+ Ka3 N2f3 Ba1 Be1 Bc3 Nd2 Ba5 Rf4 Rb4 Rf1 Ne7+ Kg7 Rd8 h8R Ng8 h7 Ngh6 Rg8 Re8 h8B Re6 Rd8 Re8 Kh7 Rg8 Bgh4 Rg2 Bg5 Qd5 Nc4+ Ka2 Nf5 Nc1 Nf8 Rb2 Kg6 Ne2 Nd2 Rg4 Bg7 Qc4 Rd5 Ka3 Nd7 Bb4 Nd4 Nh8+
1r3R2/3R2BN/r1bp1bN1/3B2PR/1qN2p2/P2N1qnK/4Q1n1/kB1r1r1R w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kf2 Ke7 Kg3 Ke6 e4 f5 c4 b5 a3 h5 c6 d6 c7 b3 g6 b4 c5 h4+ Kh3 f4 g4 b2 g5 b3 g7 Nd7 c6 Rb8 Qe2 Rh6 Nd2 b1R Nc4 b2 Nf3 Bb7 c8R Be7 c7 Nf8 Ne1 Nf6 Nd3 Rh7 g8B+ Rf7 Bd2 Ng6 Bc3 Bc6 Bh7 Re1 Bg2 b1Q Bd4 Qd7 Rd8 Rd1 c8N Qdb7 Rd7 Nh5 Bc3 Bd8 Ne7 Q1b4 Ra2 Ng3 Ba1 Nh8 Ng6 Bf6 Bd4 Rff8 Ra1 Ra8 Rh2 Ra6 Bb2 Rd2 Rah1 Rd1 Ne7 Bd5 Kg4 h3 Ne1 Bg7 Rg1 Kf7 e6+ Ke8 e5 Ng6 Bc3 Nh4 Bb1 Bh8 Ng6 Qa8 e7 Kf7 e8N+ Ke6 Bge4 Ng2 Nf6 Rb8 Nd3 Bb7 Bf3 Be4 Nh7 Kd5 e6 Qab7 Be1 Kd4 e7 Bg7 Bf2+ Kc3 e8R Kb3 Rf8 Bb2 Bc2+ Ka2 Bd4 Ka1 Bg7 Bf6 Bb1 Qd5 Nf2 Qd3 Re1 Bc6 Bd5 Qe4 Nd3 Ne3+ Kh4 Qf3 Rg2 h2 Reg1 h1R+ Rh2 Rbb6 Rf1 Rb8 Rh3 Rh2 Rh1 Rf2 R3h2 Rff1 Rh3 Qe4 R3h2 Ng2+ Kg4 Bc3 Rh5 Qf3+ Kh3 Bf6
6Bq/K1N1npp1/4B3/q1RBNNPn/1bQ1r1BP/1RR4R/1b2b1r1/6kb w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 Nf6 axb5 Ng8 f3 Na6 f4 Nb8 g4 e5 fxe5 h5 Bf4 h4 Bg3 hxg3 Kd2 Ke7 Kc3 Ke6 Kb4 d5 c4 d4 e4 a6 h4 d3 b6 a5+ Kb5 d2 b4 g2 b7 a4 c6 a3 g5 a2 c5 Nh6 c7 Ng8 Kb6 Qd4 b5 Rh5 Qe2 d1B Na3 Qb2 c6 Ra7 Nc4 Nf6 Rc1 a1B Nd6 Rh7 Qc4+ Ke7 e6 Ra5 e5 Ne4 Nf5+ Ke8 e7 Ra2 Bd3 Be6 c8B Be2 c7 Rh6 Rc3 Nf6 Nf3 Bd5 Rh3 Nh5+ Be6 Nc6 c8B Qa3 b8N Bb2 Na6 g1Q+ Kb7 Qa5 b6 Qd1 Ka8 Qf1 b7 Qd8 b8R Be4 Bd5 Re6 Rbb3 Qb1 Ne1 Bh1 Nf3 Rd6 Be6 Rd4 Kb7 Re4 Bc2 Nb4 Ka7 Nd5 Bb7 Ndf6 Bbd5 Ng8 Nh6 Qf1 Bg4 Qc8 Nf5 Kd7 e8R Bb4 Re6 Ne7 Rc6 Qh8 Rc5 Ba1 Bd3 Rd2 Nc7 Bb2 N3d4 Qb1 Nc6 Qf1 Ng3+ Qf5 e6+ Kd6 Ne5 Bd1 Nf1 Rg2 Ne3 Be2 Bb1 Ng8 e7 Qd7 e8B Ne7 Nd3 Qc6 Bed7 Qb5 Nf2 Ke5 B7e6 Kf4 Bd3 Rd4 Bh7 Re4 Nf5 Qd8 Ng3 Qh8 Nd3+ Ke3 Ne5+ Kf2 Bg8 Kg1 Nf5 Qa5+
1RRRnn2/kBNpN3/4PNb1/1P6/n4B1B/p5rr/Q1Bq2nq/4bK1R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 h4 f5 c4 a5 b4 g5 e4 f4 b6 d3 b7 f3 h6 g4 e6 g3 b5 g2 e5 a4 e7 a3 h7 Ra6 h5 Ra4 c5 Bg7 c6 Qa5+ Qd2 Nf6 h6 Na6 b8R Nc7 Nc3 Ne6 c7 Rg4 Nh3 g1Q Qa2 Qh2 Nf4 Rg3 Nd5 Nf8 Bf4 Qb4 Bh3 d2+ Kf1 d1N Rc1 f2 Bf5 Nb2 Bc2 Na4 Ne4 Qd4 Nb4 Qd2 Nc6 Rg8 h8B Rh3 h7 Bh6 Rb6 Bb7 c8B Rgg3 Bg7 Bg5 h8R Bh4 Bgh6 Ba8 Rb8 Bb7 Bhg5 Ba8 Na7 Bd5 Nc6 Bf7 Qb1 Bg6 Bb7+ Kf7 e8N Ke6 Rg8 Kd5 e6 Kc4 Nc7 Ne8 Nf6 Kc5 Qa1 Kb6 Ne7 Ka7 Qa2 Qd4 Ke2 f1N+ Ke1 Ne3 Rh8 Ng2+ Kf1 Rc3 Rd8 Be1 Bh4 Qd2 Rg8 Ng7 Rh8 Rcg3 Rb8 Nh7 Rhd8 Ne8 Bb3 Bh5 Na8 Nb2 Rcc8 Nf8 Nc7 Bg6 Bc2 Na4
4R1B1/1P2B1q1/pQp1B2n/rRN3bn/bP2r2N/5qBK/1qN1RNq1/1k6 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 b4 Kd6 f4 e5 Kf2 h5 Kg2 e4 d4 c6 f6 e3 b6 a6 f7 e2 f5 e1Q b7 Ra7 g5 Ne7 g6 Qc7 f6 Ra8 g7 Nd7 g8B Bh6 f8N Qe4+ Kh3 Qc2 f7 Qb2 Bc4 Nf5 Ng6 Nf6 f8N Qg7 Nd7 Bg5 Ra5 Nh6 Rb5 Rh7 Qg4 Rh8 Nc5 Be6 Bb3 Re8 Na3 Bf7 Rh2 Re4 Nc2 Rh7 Kg2 h3+ Kg3 Rh8 Re2 h2 Nh3 h1Q Nf2 Qg1+ Kh3 h4 Be3 Nh5 Bf4+ Qe5 Bg3 Rh7 Nf4 Qg7 Qf3 Bg6 Qe3 Rh8 Be6 Re8 Ng2+ Re5 Na1 Bc2 Bc4 Ba4 Nc2 Rf8 Bb3 Rf4 Ba2 Rfe4 Bc4 Ke7 d6+ Kf6 d7 Kg6 d5 Kf6 Bg8 Kf5 d6 Rd5 d8B Rde5 d7 Rd5 Ne6 Rc5 Rb6 Ra5 Nef4 Ke5 Be7 Kf5 Bcf7 Ke5 Ne6+ Kd5 d8R+ Kc4 Qc5+ Kb3 Rb8 Ka2 Rb5 Kb1 Qb6 Qgc1 Kh2 h3 Re8 Qe3 Nc5 Qf3 Kh1 h2 Be6 Qf4 Nh4 Qfc1+ Kg2 Qg1+ Kh3 h1Q+ Bh2 Qf3+ Bg3 Qgg2+
1N1r2R1/kP1bp1b1/2PK1bpq/8/n1NN2rB/2BRR1N1/3QB3/1b2q1Bn w - - 0 1 illegal: Other
Rb4B1/P4q2/NP2Q2q/4bp1r/2npK2B/R2nb1R1/1Rb3r1/B3NNBk w - - 0 1 illegal: No possible last move, all moves rejected
2RQ2B1/Pp3N1N/2rB3q/r2K2b1/1q1P3k/pq1R1Rn1/bqBNN3/5Rn1 w - - 0 1 illegal: No possible last move
3Q1R1B/1rqKB1R1/4p2N/k1q2q2/BnnNPr2/NR2bB1N/2n2pP1/3r4 w - - 0 1 illegal: No possible last move, all moves rejected
1q1RQB2/4n1Nb/2pn1N1R/n1R2r2/3N1P2/rq2N1n1/1nP1pBK1/k1BB4 w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 f5 h4 Bh6 gxf5 dxe4 Ra5 g4 Ra1 Bg5 hxg5 Bd7 Ra3 Be6 Ra1 Bc8 d4 Kf7 b4 a5 f4 e5 Kf2 h5 d5 a4 b6 c6 b5 a3 b7 e3+ Kg3 h4+ Kg2 h3+ Kg3 e4 b6 a2 f6 e2 d6 Ke6 f7 e1N f8B h2 d7 e3 g6 Rh5 g7 Na6 b8B Nc5 b7 Rf5 Ba7 Ne7 b8R Ned3 g8N Kd5 Nc3+ Kd4 Bb6 Ra3 Qe2 Nb2 Ba5 Ne4+ Kg2 g3 Nd5 Nd6 Ngf6 Qe8 Rb1 a1N d8N Nb3 Be1 Na5 Bf2 Ba6 Qe1 Bd3 Ne6+ Kc4 Rb5 Qb8 Ng7 Kd4 Be2 Kc4 Kh3 g2 Nf3 g1Q Bd1 Qg6 Ra1 Qf7 Kg2 Qe6 Nd4 e2 Qd2 Qg8 Qe3 Qe6 Qe4 Qf7 Ne3+ Kc3 Rc5+ Qc4 Rf1 h1N Re1 Ng3 Rh1 Qa7 Rh6 Qb8 Re5 Qcb3 Rd5 Ng8 Qe8 Ne7 Rc5+ Nbc4 Bd2+ Kb2 Ra2+ Kb1 Rb2+ Ka1 Bc1 Qc3 Rb7 Nb2 Rd7 Qcb3 Rd8 Rd5 Nb5 Bh7 Nd4 Rf5
5B1K/N2Qn1R1/6b1/n1PBNpkr/1p3bbN/1R2qPn1/N1B2qR1/3R3n w - - 0 1 legal: proof: e4 c5 g4 d5 d4 h5 gxh5 b5 b3 a5 b4 axb4 dxc5 d4 Bd3 Ra6 Be2 Rd6 Bf1 Rd5 exd5 Bg4 Nf3 Be6 Ng1 Bc8 Ke2 f5 Kf3 Kf7 Kf4 Kf6 a4 e6 h4 d3 c4 g6 a5 d2 c6 b3 a6 b4 d6 b2 c5 Nd7 c7 Rh7 h6 Nb6 a7 Na4 a8B Rh8 d7 Ba6 c8N Be2 h5 Nc3 h7 Ne4 h6 Qe8 d8N Bh5 Na7 Ne7 Bd5 Ng3 Nc3 b1N Rh2 Na3 Ndc6 Nh1 Na2 Nc4 Rg2 Na5 Bd3 Bg4 Qa4 d1B Ne5 Bdf3 Bc2 g5+ Ke3 Bh5 Kd4 g4 Qd7 g3 Bf4 Be2 Rd1 Beg4 Ngf3 Bg6 Nh4 Bg7 Bc1 Bf8 Bb2 Kg5 f3 Bg7 Rd3 Bf6 Rb3 Bg7 Rd2 g2 Rd1 g1N Ba1 Rg8 h8R Bf6 Rh7 Rh8 Rg7 Ne2+ Ke3 Neg3 Kd4 Kf4 h7 Bg5 Bc3 Bh6 Nec6 Kg5 Ke5 Kh5 Kf6 e5 Bd4 e4 Ne5 e3 Bc3 e2 Bd4 Rg8 h8R e1Q Rhh7 Rh8 Rg8 Qg1 Rhg7 Bc1 Be3 Qf1 Bh6 Qf2 Nc4 Nc8 Rf7 Bf4 Kg7 Bh7 Re7 Nf1 Rdb1 Bh3 Rf7 Qee3 Ne5 Ne7 Rd1 Bg2 Kf6 Bh3 Rg2 Nfg3 Bf8 Bg4 Kg7 Kg5 Qc7 Nec6 Qd7 Bg6 Re7 Rh5 Rf7 Bh7 Kh8 Ne7 Rg7+ Bg6+
2R1bk2/bq1B3R/1q1q1N2/p3p1nB/R5Q1/5Pr1/P1NB1NNB/2brbK2 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 Nc6 Ke2 Nd4+ Ke1 Ne6 gxf5 dxe4 Rh3 g4 Rh1 Ng5 hxg5 Bh6 Na3 Bg7 Nb1 Bf8 d4 h5 c4 b5 c6 a5 d5 g3 c7 e6 d6 h4 d7+ Ke7 f6+ Kf7 c5 e3 c6 g2 Qg4 h3 Na3 b4 Rb1 b3 Nc2 b2 Bd2 h2 Be2 Rh6 Nh3 g1B Kf1 Bc5 g6+ Kf8 f7 Qe7 d8N Bd7 c8R Nf6 c7 Ba7 Re1 Qd6 g7+ Ke7 g8N+ Kf8 Bf3 Ne4 Nf6 b1Q Be2 Qb7 Rb1 Qba6 Rb4 Qab6 Ra4 Rg6 Bf3 Ng5 Be2 Kg7 Bf3 Be8 f8B+ Kh8 Bh6 e5 Ne6 Rg7 Nef4 e2+ Kg2 e1B Kf1 Rb8 Ng2 Rd7 Qd4 Rg7 Bh5 Ra8 Qg4 Rb8 Nd7 Kg8 Nf6+ Kf8 f3 Be3 Nf2 Qb7 Bc3 Bc1 Bd2 Qdb6 Rd8 Qd6 c8B Qbb6 Be6 Rb7 Rb8 Rd7 Rc8 Qb7 Bf5 Qdb6 Bf4 Rd1 Bd7 Qd6 Rg1 h1Q Bh2 Nh3 Bd2 Ng5 Bhf4 Qh3 Bh2 Qg3 Rh1 Qf4 Bg3 Qfd4 Rh3 Q4b6 Bh2 Qbd5 Bg6 Qe4 Rh7 Qeb7 Bh5 Nf7 Qf4 Rg3 Qg4 Ng5
n7/1B2pRnN/BQ1RN1R1/2rnbP2/n1r2qq1/1KN5/pr2PB1R/kB6 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h3 f5 Na3 Bb7 Nb1 Bf3 gxf5 g4 Nc3 g3 Nb1 Bg4 hxg4 Bg7 Rh5 Bh6 Rh1 Bf8 Kd2 Kf7 b4 Kf6 c4 Ke5 Kc2 a5 g5 h5 g6 d5 g7 a4 c5 a3 f6 d3+ Kb3 Kd4 f4 g2 f7 a2 f5 d2 b6 h4 c6 h3 b7 h2 c7 Nd7 c8B Rh4 b8R Nb6 b5 Qd6 Ba6 Nf6 g8B Bg7 f8N Ne8 Nh3 g1Q Ng5 Be5 Nfh7 Qg4 Bg2 Ng7 Rd8 Rb8 Nc3 Na8 b6 Rb7 Qe1 d1N Be4 Nb2 Bb1 Na4 Rf8 Rc7 b7 Rc5 b8R Qh6 Rg1 h1R Rb6 R1h3 Be6 Rd3 Bb7 Rd2 Bec8 Rc2 Rf7 Rb2+ Ka3 Kc4 Ne6 d4 Be3 d3 Qf2 d2 Rd6 d1N Rg2 Qhf4 Rh2 Qff3 Qg1 Qff4 Bf2 Ne3 Ba6+ Rbb5 Bcb7 Nd5 Be1 Rc7 Qb6 Rc5 Nef8 Kd4 Bg3 Rb2 Ne6+ Ke3 Bf2+ Kd2 Be1+ Kc1 Bg3 Rb4 Bf2 Rbc4 Kb3 Rh3 Nef8 Rd3 Rg6 Rd2 Ne6 Rb2+ Ka3 Nf6 Bc2+ Kd2 Rg1 Rc7 Rg3 Kc1 Rd3 R7c5 Rd6 Nd5 Be4 Rd2 Kb3 Rc2 Nb5 Kb1 Nc3+ Ka1 Bd3 Rd2 Bb1 Rb2+
2BR1NNr/q3K2R/Q4R1r/P5n1/r1b1BBpr/2N1b1P1/4pbBk/3R3b w - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 d5 h4 g5 c3 Na6 c4 fxe4 cxd5 g4 Bb2 Nc5 Ba3 Ne6 Bc1 Ng5 hxg5 Bd7 Ba6 Be6 Bf1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 h5 a4 c5 d4 c4 f4 c3 f5+ Kh7 d6 c2 d7 h4 Ke6 b4 f6 Kg6 f7 Kh5 a6 b3 a7 e3 g6 b2 d5 h3 d6 Kh4 g7 Kg3 Nc3 b1R Qd3 h2 Nf3 e2 Qa6 e1B Nh4 Nf6 g8B Bh6 f8N Qc7 Nhg6 Be3 a5 Rh4 Bd3 B1f2 Be4 Rb4 Ra3 Bb7 d8R Ra4 d7 Nh7 Ra2 Rc8 a8B Bc6 Kf7 e5 Ke7 Bd5 Be6 Qa7 Rb2 Ba2 Rb6 Ng5 B6f5 Bc4 Rf6 Rc6 Rd1 h1B Bb7 Kh2 g3 Bb6 Bf4 c1R Ra8 Rc2 d8R Bbe3 Bc8 Rd2 Bg2 e4 Rd7 Rb6 Rc7 Rd8 Rb8 Bd4 Bd5 e3 Bde4 e2 Rcb7 Rd5 Rd7 Rdb5 Rbb7 Rd6 Rd8 Bde3 Ke8 Nh3 Ne7 Bd2 Ng8 Bde3 Rff7 Rbh5 Rbd7 Rg6 Rf6 Ng5 Rc7 Rh8 Rh7 Qb8 Kd7 Rgh6 Ke7 Qa7+
2Bn2bn/3p2B1/1P1N1K1R/Q3R1R1/n1bqBpN1/b2P1Nr1/Bk2n2b/6R1 w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 h4 g5 hxg5 Ke7 a4 Ke8 b6 Ke7 b5 Ra6 b7 Rf6 b6 Ke8 Nh3 Rf5 Ng1 Rb5 axb5 a4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 f5+ Kd4 a3 e4 h4 e5 h3 g6 h2 g5 a2 g7 f3 g6 f2 Qe1 Rh3 Na3 Rg3 Nc2 Qf6 Ne3 Ba3 Nf3 Nh6 g8B+ Nf7 Bh7 Nh8 g7 c6 Be2 f1N Ng4 Ne3 Bb2 Nc4 d3 f4 Qa5 c5+ Ke4 Nc6 b8R Ba6 b7 Nb6 Rg8 c4 b8R c3 Rag1 Na4 b6 a1B Rbe8+ Ne7 Bf1 c2 Bg2 c1N Kd4 Bb5 Be4 Bc4 Bb7 Kf5 Bc8 Ke6 Ke4 Ne2 Bd4 B1b2 Bc3 Bc5 Bd4 Bba3 Bc3 Kf7 e6+ Kg6 Bd4 Nc6 e7 Nd8 Ba1 Qc3 Bb2 Kf7 Kf5 Qb4 Kg5 Ke6 Be5 Kd5 Kf6 Ba2 Ref8 Qc3 e8N Bc4 Nd6 Qd4 Re8 Nb7 Rb1 Nd8 Rhg1 h1B Rb5 Nhf7 Re6 Nh8 Rge8 Bc1 g8B Be3 Re1 Bg1 R8e7 Bh2 Rg7 Nac3 Rg5 Na4 Rbb1 Bb5 Rg1 Ba3 Rbe1 Kc5 Qa8 Kb4 Qa5+ Kb3 Bf7 Qc4 Bc3 Qc5 Ree5+ Kc2 Ba2 Qd4 Rb1 Bc4 Rb5 Nc5 Rg6 Na4 Rh6 Qe3 Rg5 Qd4+ Rbe5 Bg8 Nd2 Bc4 Be4 Bg2 Nf3 Bh3 Nf2 Bhe6 Ng4 Bg8 Kg7 Qd5 Ree6 Nb2 Bf6 Na4 Ree5 Nhf7 Kg6 Qd4 Bg7 Nh8+ Kf6 Kb2
1k2NRr1/4Nnpn/2Pr2pb/2q1NB1K/2RN3Q/3R4/2Bp1RP1/1rBn2b1 w - - 0 1 illegal: No possible last move
1QrR2q1/1N1RNp2/2N1NB2/bn1R1pB1/2p1PP1r/2b4b/1B2k3/2KRn2n w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 h5 gxh5 e6 a4 Nc6 axb5 Nb8 Bh3 Bb7 Bg4 Bc8 Bf5 exf5 h4 Kd7 e4 Kd6 d4 g5 Kd2 c5 b4 a5 b6 a4 b7 a3 b5 a2 b6 g4 h6 g3 h7 g2 h5 c4 h6 Qd7 Nh3 g1N Nc3 Ra4 Ng5 Qe8 Qb3 Ra7 Ne6 Nd7 b8N Nc5 b7 Na6 f4 Qb5 Bb2 Nc7 Rb1 Ra8 Rh2 Ke7 d6+ Kf6 d7 Kg6 Re1 Nf3+ Kc1 Bb4 d8N Ba5 d5 Bd7 d6 Nf6 Rd2 Kh5 Nd5 Kg4 Rf1 Qc5 Ne7 Nh5 Rd5 Ba4 d7 Qg1 Qb4 Bc2 Rfd1 Ne1 Qd6 Kf3 Qb6 Rf8 h8B Bd3 h7 Bf1 Nbc6 Bh3 b8R Ng3 Bhf6 Rh8 Rb7 Nb5 Ra7 Rc8 Qb8 Ke2 Bh4 Re8 h8B Nh1 B8f6 Rh8 Rc7 Qg2 Nb7 Qg8 d8R Rh5 Bhg5 Rh4 Rcd7 a1B Ba3 Bd4 Bb2 Bdc3
1R4n1/2BRP3/kB1Rprb1/b2B1rr1/1Q6/1nN2PNN/K1n1p1pB/1N3q2 w - - 0 1 illegal: No proof kernel
4B1Kn/1R5N/BRBqn1pp/Qr3nb1/N6B/RRP2p2/1rNk2P1/2q2b2 w - - 0 1 legal: proof: f4 b5 h4 e5 fxe5 c5 d4 cxd4 a4 g6 axb5 Nc6 h5 Qf6 h6 Qg7 hxg7 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 b4 h6 b6 f6 e6 a4 b7 a3 b5 a2 b6 d3 e7 d2 e8B Kf4 e4 Ke3 e5 f5 e6 f4 e7 f3 Nc3 Nc6 b8R Nd8 b7 Nf7 Na4 Ra5+ Bb5 Rh7 c3 Nh8 Ne2 d6 Rb1 a1N Nd4 Nb3 Bc6 Nc5 e8B Ne6 Rb3 Be7 Rh5 Bg5 Nc2+ Kf2 Qh1 d1Q+ Bd2 Qb1 Qd1 Qb2 Qa1 Qc1 Ra8 Bd7 b8R Bc8 Rb6 Ba6 Nb2 Ra2 Na4 Rb2 Bf1 Bb5 Rh4 Bd3 Rhb4 Bb5 Rb7 Be2 R4b6 Ne7+ Ke4 d5+ Ke5 d4 g8N d3 Nf6 Rf7 Nh7 Rf5+ Kd6 Rb5 Be1+ Kg1 Ra5 d2 Bh4 Nf5+ Kd7 Bd3 Qa3 d1Q Qb4 Qf4 Raa6 Qdc1 Qa5 Be4 Bc4 Bd3 Ra8 Kf1 Raa7 Rb4 Ba6 Ke2 Ra8 Qb8 Raa7 Kd2 Ra8 Bf1 Raa7 Ng3 Ra8 Bf4 Ke7 Qd6+ Kf6 Rb5 Raa7 Ng5+ Kg7 Ne6+ Kg8 Nf5 Qb4 Ke2 Nc5 Kd2 Qa3 Rb4 Bab5 Qe1 Ra5 Rc4 Ba6 Qc1 Qb4 Re4 Raa3 Bg5 Qa5 Rb4 Na4 Rb5
1qn2bk1/1n1R1N1R/1N1PPp2/1ppBB3/b1NK4/2B2qr1/1q3B1N/Q5rR w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 b5 Ke3 g5 h4 c6 d4 b3 a4 b2 d6 g4 h6 g3 a5 g2 a6 Bg4 a7 Bh5 h7 Bg4 d7+ Ke7 d5 Bf5 d6+ Ke6 h5 Bg6 h6 Qg5+ Kd4 Be7 d8N+ Kf5 e6 Kf6 e4 Bf5 e5+ Kg6 Na3 b1Q Bc4 Na6 Bd5 Bf8 e7 Nc5 e8R Bg4 e6 Nb7 Be3 Qgf5 Nc4 Ne7 Bf2 Rg8 h8B Kh7 Be5 Nc8 Re7 Qf3 Rd7 Rg5 Qa4 Kg8 Qa5 Rb8 a8N Qb2+ Qc3 Bf5 Nab6 Bc2 Ra2 Rg3 Ra7 Qa2 Qa1 Ba4 Nh3 g1Q Ng5 Qfa3 Nf3 Q2b2+ Ke4 Qab3 Nh2 Qbd1 Bc3 Qf3+ Kd4 Qf1 Qa3 Qh3 Qa1 Qh4+ Ng4 Qe7 Nh2 Qe8 h7+ Kg7 h8B+ Kg8 Be5 f6 Rh7 Ra8 Nf7 Qd8 Rc1 Qc7 Ra5 Qb8 Rh1 Ra6 Rg1 Bb3 Qa2 Nd8 Rd1 Ra8 Ra7 Bc2 Re7 Nb7 Qb1 Ra1 Rh1 Ba4 Qa2 Rc1 Rd7 Rcg1 Qa1 c5#
1r1q2K1/RqBnk1pN/4p1bN/RN5B/1Pn1P3/8/q2Bp3/N1rbRQ1R w - - 0 1 illegal: No proof kernel
KB6/3bP2r/1b1R3Q/1nkNqpP1/2Bp2B1/2R1pNn1/N2n3q/N1Br2R1 w - - 0 1 illegal: No proof kernel
qQ6/2bkp3/Bp1N1PR1/5N2/bp1q1n2/B1PR1rnK/BR1r4/qR3N1N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 d5 Kf2 g5 Kg2 b6 a4 d4 h4 d3 f6 d2 c6 g4 a5 g3 f5 Nh6 c7 Na6 c3 Nf7 h6 Qd6 h5 Qc6+ Kh3 g2 h7 Bd7 c8N Nc5 a6 Nb3 a7 Qb5 h6 Bc6 Ra2 Bf3 Nd6+ Kd8 Ba3 Kc7 Ne2 g1Q Rb2 Nd4 Ng3 Qc5 Ba6 Ne5 f7 Kd8 f6 Qc6 Ndf5 Rc8 a8B Bg7 f8R+ Kd7 Rg8 Ne2 B8b7 Bf8 Rg6 Rd8 Bc4 Qe3 Bba6 Nd3 Ba2 Qd4 Qc1 d1Q Qf4 Qda4 Qb8 Qa8 Nd2 Bc6 Rhb1 Qa5 Ndf1 Ba4 Nh1 Ng3 Rg2 Rg8 h8R Rg7 h7 Nf4+ Kg4 Rg8 Rgb2 Bg7 Kh4 Bh6 Kg4 Rg7 Rg8 Bg5 h8N Rh7 R8g7 Rh2 Rg8 Rf2 Nf7 Rf3 N7d6 Qd2 B2c4 Bb5 Nf7 Kc6 Be2 Nfh5 Bc4 Bf4 Kh3 Bc7 Rh8 Rd5 Rd8 Qf4 Bb3 Rd2 Rd3 Qd4 N7d6 Kd7 Bc4 Qa4 Bg8 Qd1 Ba2 Ba4 Ra1 Qb1 Rc2 Qb2 Rb1 Qa1 Rcb2 Nf4+
BR5r/1NqPP3/Knr1k2N/rpR2b2/B5q1/RN1n3p/2pN2Qb/1BB5 w - - 0 1 illegal: No possible last move
1NB1Q1N1/2p1q2b/B2k4/1b2RpN1/1bR4K/2P1R3/2BpPrr1/R1Nnn1q1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 f4 Qd8 fxg5 h6 g6 Ra6 g7 Ra8 g4 Be7 g5 Bc5 g6 Bf8 Bg5 hxg5 Kf2 Ke7 Kg3 b5 h4 d5 a4 f6 a6 g4 c3 b4 e6 b3 h5 d4 a5 b2 h6 d3 a7 Qd4 h7 Qc4 a6 Qd4 Nf3 Qe5+ Kh4 g3 Qa4 g2 Ng5 g1Q Qe8+ Kd6 e7 Nh6 g8B Nd7 g7 Qgc5 Rh3 Qb4+ Bc4 Qea5 g8N Qab6 Re3 Ng4 Bh3 Q6c5 Nd2 b1B Nb3 d2 Nc1 Nde5 Bd3 Qcb6 Bc2 Nf2+ Bg4 Rb8 a8N Nd1 a7 Nd3 Re5 Q6d4 Nb6 Ba6 a8B Qg1 Bb7 Ne1 Nd7 Bb5 Ba6 Rb6 Nb8 Rc6 Nh6 Rg8 h8R Rc4 Re3 Rf4 Rh7 Rg6 Ng8 Rf2 Rh5 Qc5 Bgc8 Qe5 Re4 Qe6 Rc4 Qe5 Ne6 Rgg2 Rg5 Qc5 Re5 Qb4 Ng5 Qa3 Bb3 Bh7 Bc2 f5 Qh5 Nd3 e8R Ne1 Re3 Qc5 R8e4 Qe5 Qe8 Qe7 Re5 Bg7 R5e4 Bd4 Re5 Bc5 Kh5 Ba3 Kh4 Bb4
3BNBqR/1p2N1P1/3p3q/4PK1b/3rNR2/1QR1nb2/1b2p1n1/1r1N1BBk w - - 0 1 illegal: No proof kernel
bB1BNq1q/1pNkP2p/3rn1N1/1rRB2b1/N6K/2n2B2/rpP1Q1R1/3R4 w - - 0 1 illegal: Other
nK6/pb2Qn2/B2B3k/2N1p2B/4rPr1/RB1R1p1N/q1PnN1q1/bR3R2 w - - 0 1 illegal: No proof kernel
1n1qB1r1/r1B1RN1R/P4P2/B2n1RN1/1b1kn2K/N1Nn1Rpb/Qp3p2/8 w - - 0 1 illegal: No proof kernel
1NNR1NN1/b4P1B/K2b4/3P2qr/1Bb5/RpB1kpB1/2Qn1p2/bRn3r1 w - - 0 1 illegal: No possible last move, all moves rejected
R2rk3/P4p2/1R1P1n1r/1N1K4/5p1b/pB1b1BBB/Nb1b2NR/nQ1q2N1 w - - 0 1 illegal: No proof kernel
R2R1Rr1/pK2B1n1/Pr3NR1/p2nNBQ1/qr6/r1pBN3/4bP1b/N6k w - - 0 1 illegal: No possible last move, all moves rejected
N2n2B1/QN2r1rp/RpPb3P/1rqB1b1R/2B3N1/p7/3kqRK1/B1b1R3 w - - 0 1 legal: proof: d4 c5 g4 e5 dxe5 f5 b4 fxg4 bxc5 b6 a4 Nc6 a5 Nd4 a6 Nf5 Bh3 Nd6 Bf1 Nb7 axb7 Bd6 Bh3 Be7 Bf1 Bf8 b8R Ke7 c4 Ke6 f4 Kf5 Kf2 Ke4 h4 d5 f5 a5 f6 g5 f7 g3+ Kg2 a4 c6 d4 h5 d3 c5 g4 h6 a3 e6 d2 e7 Ke3 e8B Qd6 c7 Ra7 c6 Qg6 Nf3 Bc5 f8R Rb7 Ra8 Qf5 Bb2 Bd4 Ne5 Rb8 Nc3 Rb7 Nb5 Bc5 Rh5 Bd6 Bf7 Ne7 Qa4 d1Q Bd5 Ng6 Ra6 Kd2 e4 Rg8 Bfc4 Rg7 Rc1 Qg5 Ba1 Qe2+ Rf2 Bf5 c8B Rbe7 Nc7 Nh8 Re1 Nf7 Na8 Nd8 Bce6 Qe3 Bg8 Qc5 Nd7 Rg5 e5 Rgg7 e6 Rg5 Kg1 g2 Ne5 Rgg7 Kh2 g1B+ Kg2 g3 Ng4 Re8 Kh3 g2 e7 Bgh2 Rg1 Bhf4 Re1 g1R Qa5+ Qb4 Qa4 Rh1+ Kg2 Rh3 Qa5 Rb3 Qa4 Qc5 Qa5+ Rb4 Qa4 Rf8 e8N Rff7 Qa5 Re7 Qa4 Bde5 Nd6 Rb5 Nb7 Bb2 Qb3 Bd6 Qg3 Bb8 Qc7 Bc1 Qd7 Bd6 Qc7 Bd3 Qb8 Bc2 Qa7 Bf5
RB1k1K2/n5nR/2b5/5rb1/nB1bBpp1/1B1PNq1R/3p1PQ1/2NNR1q1 w - - 0 1 legal: proof: a4 c5 g4 b5 axb5 h5 gxh5 c4 Bg2 c3 Kf1 cxd2 Bh3 Na6 Kg2 Rb8 Kg3 Ra8 Bf1 Nb8 Kh3 Nf6 Kg2 Ng8 Kf3 a5 c3 d5 Qa4 d1N Bg5 d4 Qb3 d3 Bf4 Ra7 Bc1 d2 Qd5 Rd7 Qb3 Rd3+ exd3 Nf6 Ke2 Ng8 h4 e5 Kf3 f5 b6 g5 c4 f4 Ke4 a4 c5 a3 c6 g4 b7 a2 c7 Bb4 h6 Qg5 Kd5 Be7 h7 Qf5 h5 Bg5 Kd6 e4 h6 e3 Bg2 e2 Rh3 e1Q Qd5 Bd7 c8B Na6 b8B Nc7 b4 Be6 b5 Kd8 b6 Bf6 b7 Qh5 Be4 Qf7 Ba3 Na6 Bb4 Bg5 Nc3 Qe3 Nge2 Bf5 Be6 Qg3 Nc1 Nb2 Nd1 Ne7 Rb1 Rf8 h8R a1B h7 Qg7 Qc6 Qf7 Bb3 Nc7 Rg8 Qh5 h8R Bd7 Rh7 Na4 Qd5 Bd4 Ra1 Nc3 Ra8 Bc6 Rgg7 Ng8 Re7 Nh6 Bf3 Qf7 Re1 Bd7 Ba7+ Bc8 b8N Na4 Qb7 Qg1 Nd7 Qf5 Bg2 Qe4 Nf6 Qe2 Bb8 Bd7 Qf3 Bc6 Nd5 Rf7 N5e3 Nb5+ Ke6 Na7 Qg3 Nf5 Be4 Qf3 Qg2 Ng7+ Kd6 Nh5 Ke6 Rf5 Kd6 Bc3 Ke6 Bcf6 Kf7 Ng7 Kf8 Bd4+
1nr1N3/pp4B1/Q3R2B/P2N1n2/BrB2KRN/k3b1NR/3P2p1/2qqn1r1 w - - 0 1 legal: proof: g4 c5 e4 f5 b4 g5 bxc5 d5 gxf5 g4 h3 g3 Ba6 Be6 Be2 dxe4 Bf1 Bf7 Qg4 Bh5 Qd1 Bg4 hxg4 Qd7 Rh5 Qd5 Rh1 Qd8 Ke2 Kd7 Ke3 Kc6 f4 e5 a4 h5 c4 g2 g5 h4 f6 h3 g6 h2 f7 Rh5 f5 Qc8 g7 Rh7 a5 Na6 f6 Rh8 Qe2 Rh6 Nc3 Rg6 Bb2 Rh6 Nd5 Bd6 f8N Qd7 f7 Rc8 Ng6 Re8 f8B Qe6 Nh4 Rb8 Re1 Ne7 g8R Rc8 Rg4 Nb8 Bd4 Rf6 Bh6 Rf4 Qd3 Qf5 Ne2 Qh5 Ng3 Bc7 Bc3 Bb6 Bd4 Kd7 c6+ Kd6 c7 Nf5+ Ke2 e3 c5+ Kc6 Qa6 Re4 Kf3 e2 Ba1 Rb4 Bb2 e4+ Kf4 e3+ Bd4 Rf8 c8N Re8 Nd6 Rc8 Rg1 h1Q Ne8 Qh2 Rh1 Qg1 Rh3 Qh1 Rc1 e1R Bc4 e2 Bdg7 Rg1 Rb1 e1N Rd1 Kd7 c6+ Ke6 c7 Kd7 Nef6+ Kd6 Ne8+ Kc5 Ra1 Qg6 Ra3 Qc6 Re3 Qa4 Re4 Qd1 Re6 Rb5 Ne7 Kb4 Nd5+ Ka4 Rf6 Ka3 Re6 Rd8 c8B Rb4 Bd7 Rc8 Bc6 Be3+ Ke5 Qc1 Ne7 Nc2 Nd5 Re1 Ba4 Qf1 Rh1 Qe2 Ke4 Rg1 Rh3 Ne1 Ke5 Qed1 Ke4 Bd4 Kf4 Be3+
1BR1rb2/1bR4n/P3p1BN/p2b1R2/P1BpN1Kq/kB6/4N1n1/1b2b1QR w - - 0 1 legal: proof: e4 c5 h4 f5 d4 fxe4 dxc5 a5 b4 g5 hxg5 b6 b5 Ra6 bxa6 b5 Ke2 d5 g4 Kd7 f4 Kc6 c4 h5 a4 h4 f5 d4 g6 h3 f6 e3 Kf3 h2 g5 e2 g7 e1B g6 b4 f7 b3 Nc3 b2 Bf4 b1B Ne4 Rh4 Ne2 Bd3 Rc1 Nh6 g8B Qd5 g7 Nd7 Bb8 Qd6 Bh7 Qd5 g8N Bb1 Bg6 Ng4 Nh6 Qg5 Rc2 Bg7 f8R Ne3 Rf5 Nf6 Rc3 Bf8 Rc2 Kd7 c6+ Ke6 c5 Nh7 c7 Bb7 c8R Ng2 c6 Rh5 c7 Qh4 Rf7 Re5 Rf5 Kd5 Rc1 Bc3 Qe1 Kc4 Qf2 Kb3 Qg1 Be1 Rc5 Qf2+ Kg4 Bd5 Re8 Kb4 c8B Ka3 Be6 Bb7 Bb3 Qh4+ Kf3 e6 Rec8 Rd5 R5c7 Rd8 Ng3 Re8 Bfc4 Qe7 Kg4 Bd5 Qf1 Bb7 Ne2 Qd8 Rg1 h1B Qf2 Qe7 Rf1 Qd8 Qg1 Qh4+ Kf3 Kb4 Qh2 Qf6 Kg4 Ka3 Nc5 Nh4 Qg3 Bhg2 Rh1 Bgd5 Qg1 Ng2 Ne4 Qh4+
n2B4/p2KbqRp/b3NNrn/3b1p2/1k3B1N/1N3b2/QPB1bPR1/6RB w - - 0 1 illegal: No proof kernel
2Nb1r1r/1rpBpB1q/R1N3n1/2Rp1n1r/1BQ1R1K1/2N1P1P1/3krN2/6B1 w - - 0 1 illegal: Other
NB1r4/QRp2r1n/R1R2p1R/1B1N2rr/np5q/kP6/b1P1NK1n/B4N2 w - - 1 2 legal: proof: f4 h5 d4 g5 fxg5 e5 dxe5 Bc5 Nd2 Ba3 Nb1 Bf8 a4 b5 g4 Bc5 a5 Bb6 axb6 hxg4 e4 Ke7 h4 a5 e6 d5 h5 Kd6 g6 Kc5 g7 Kb4 h6 f6 h7 g3 b7 d4 e7 a4 e8R d3 e5 a3 e6 g2 e7 a2 Ne2 g1R Nd2 Qd6 Rh6 Rg3 Kf2 Nd7 b8B Rg5 Rd8 Bb7 e8N Nf8 Qe1 Qa6 Nd6 Qa4 N6c4 Bd5 Nb6 Bb3 Rb1 a1R Rd6 Ba2 Rc6 Ra5 b3 Rh5 Rb2 Ka3 Na8 Qc4 Qd1 b4 Qe1 Rag5 Qd1 Ne7 g8N Nc8 Ne7 Nb6 Nd5 Na4 Qe1 Rhg8 h8R Nh7 Qd1 R8g7 Rd8 Rg1 Rdd6 R1g4 Ra6 Rb1 Rdc6 R4g5 Rab6 Rf7 Rb7 Rf5+ Nf3 Rfg5 Nh2 Qe4 Bf4 d2 Be5 Rc1 Rb1 Qg4 Ba1 Qh3 Nec3 Qg4 Bb5 Qc4 Qg1 Rd1 Ne2 Qh4+ Ke3 Rf1 Qf2 d1N+ Kf3 Rh1 Qa7 Nf2 Nf1 Ng4 Re1 Nh2+ Ke3 Qc4 Kf2 Rhg1 Rb1 R1g3 Rd1 Qh4 Rd3 Rg8 Re3 R8g5 Ree6 Rg8 Ra6 Rd8 Rec6 Rgg5+
b4RB1/1P2bp2/1N3N1n/pk2bN2/Rr2b3/1B2Nq1R/P3r2p/1K2BrRQ w - - 0 1 legal: proof: h4 e5 c4 b5 g4 bxc4 d4 g5 dxe5 Bc5 f4 Bb6 h5 Nc6 h6 Bc5 fxg5 Ba3 g6 Nce7 g5 Nf5 Kd2 Ng7 hxg7 Bd6 Ke1 Bf8 Kd2 h5 Kc2 a5 b4 c5 e4 d5 b5 Kd7 b6 Kc6 e6 c3 e5 c4 e7 d4 e8N h4 e6 h3 e7 Qd7 Ne2 Rh4 Nf4 Kc5 Bd2 Qd8 Nf6 Qd7 e8N Qb5 Nd6 Nh6 g8B Bb7 g7 Be7 g6 Re8 N4d5 Ba8 b7 Qc6 Ne3 Qf3 Na3 d3+ Kb1 Rd4 Be1 d2 Qc1 d1B Ndf5 Ba4 Bd3 Bc6 Bc2 Be4 Rg1 Kb6 Rg3 h2 Rh3 Bd5 Bb3 Be4+ Nac2 Kb5 Ned5 Rd2 Qd1 Re2 Nb6 Rd8 Qc1 Rd3 Nce3 c2+ Kb2 Rd4 Qb1 Bc6 Qd1 c1B+ Kb1 Bb2 Qc1 c3 Qd1 Rh4 Qd5+ Ka6 Qe4 Qg4 Qh1 Kb5 Bg3 Qd4 Bh7 Kb4 g8R Rg2 g7 Kb5 Rf8 Qf4 g8R Re2 Rg4 Qf3 Ra4 Rb4 Bg8 Be4+ Nc2 Bc1 Bf2 Bd2 Bg3 Be1 Kc1 Bf2 Bh4 Bg3 Nce3 c2 Kb2 Bc7 Rb1 c1R+ Ka1 Rcc2 Rg1 Be5+ Kb1 Rf2 Bg3 Rf1+ Be1 Re2+
1RRK1Q2/1B3pBn/1Nn4N/2N1R2r/Pk2NP2/pBb4r/2rp3b/b2b2B1 w - - 0 1 illegal: No proof kernel
RN2b1Kr/2B3Bp/2B3bP/p4Nn1/1n1Q1pR1/k4B1P/2r1p3/qnN1NR2 w - - 0 1 illegal: No possible last move
8/p2N1Np1/Bqp1nR1R/r1PB4/P2r2q1/1K2k1p1/2RrB1b1/N1QB2bN w - - 1 2 legal: proof: d4 e5 dxe5 f5 g4 c6 gxf5 h6 b4 Qh4 b5 Qd8 b6 Na6 Bg5 Nc7 bxc7 hxg5 Kd2 Kf7 Kc3 b5 e4 d5 a4 g4 f4 b4+ Kb3 g3 h4 d4 c4 d3 h5 d2 c5 Qe8 e6+ Kf6 h6 Bd7 c8B Rh7 e5+ Ke7 f6+ Kd8 f5 Kc7 f7 Rb8 e7 Rb5 f6 Rh8 e6 Rb7 h7 Nh6 Qc1 d1R Nd2 Nf5 Rh6 Rb5 Be2 Ra5 Bca6 Qc8 e8B Bd6 f8R Be5 f7 Bd4 Nh3 Bg1 e7 Rg8 h8N Nd4+ Kc4 b3 Nf2 b2 Nh1 b1Q Ra2 Bh3 Rc2 Bf1 Nb3 Rd2 Na1 Qb6 Bd7 Ne6 e8B Bg2 Bd1 Nd8 B7g4 Ne6 Bge2 Kd8 Kc3 Ke7 Kc4 Qcb8 Kc3 Qf4 Bd7 Qg4 Bdc8 Nf4 Be6 Rd4 Bd5 Ne6 Ra8 Rd8 f8N Rd7 Nf7 Rd6 Nd7 Rd2 Rf8 Rd4 Rh3 Rd2 Nde5 Kf6 Rh6+ Kf5 Nd7 Kf4 Kc4 Ke3+ Kc3 Qd8 Kb3 Qc7 Nfe5 Qd8 Rff6 Qc7 Nf7 Qd8 Bdf3 Rd4 Bd5 Qb6+
NnkB3B/Bp3NqP/5K2/2Np1R1p/2p4R/rP4Q1/rr1q2N1/bB2R2n w - - 0 1 illegal: No proof kernel
bqN3R1/2Q1NR1p/4B2P/1BRp2K1/r4pbR/b1B1n1pN/knb2BP1/8 w - - 1 2 legal: proof: d4 a5 b4 c5 dxc5 b5 a4 e5 f4 Ra7 fxe5 Rb7 Nh3 axb4 Ng1 b3 Ra2 b4 Ra1 Rb5 axb5 Qe7 Nd2 Qf6 Nb1 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 e4 b2 c4 d6 h4 b3 h5 g6 c6 Bg7 c7 Qd7 b6 Bf6 b7 Na6 b8B Qg7 c5 Bb7 c8N Be7 h6 Bc6 Bd2 Nb4 Ba7 Nf6 Bc4+ Bd5 c6 Qg8 c7 Qf8 Nc3 b1B Rh4 b2 Kg5 f4 Nh3 Bc2 Bf2 b1B Ra7 Nd3 Qc1 Nb2 Bb5 Bb7 Nd5 Ba8 Bc3 Bd1 Ra5 Bbc2 Ra7 Qd8 Ra5 Bf8 Nde7 Bg4 Ra7 Nd5 Rb7 Ne3 Bc4+ Kd7 e6+ Ke8 e5 d5 Rb5 Qd6 Rc5 Qb6 Be2 Qb8 Bb5+ Bc6 Nf5 Rg8 e7 Kd7 e8B+ Ke6 Nfe7 Ba8 Na7 Rh8 c8R Rg8 Rd8 Rg7 Nac8 Rf7 Ng8 Ra7 Nge7 Ra2 Rd7 Ra4 Nc6 Bd6 Rg7 Bf8 Bf7+ Kd7 e6+ Kc7 Rc4 Ba3 e7 Kb7 e8R Kc7 Kf6 g5 Reg8 Kb7 Rc5 Kc7 N6e7+ Kb7 Bc6+ Ka6 Nd6 Kb6 Be6 Ka6 Bb5+ Kb6 Bd4 Ka5 Rf7 Kb4 Bc3+ Kb3 Ndc8 Ka2 Qg1 Bf3 Qc1 g4 Kg5 g3 Qe1 Nf1 Qe5 Ne3 Qc7 Bg4
3rb2b/R5p1/BK2n3/1pBRRp1b/Nr1Rp3/1PBq1b1N/1N1N1Pk1/Q7 w - - 0 2 illegal: Other
1B2b3/1Np1B1qR/Nqp3pR/rkb1p1P1/2N1RpN1/Br2P2n/5B2/3Q2K1 w - - 1 2 illegal: No possible last move
Nk3B2/1N5r/3R1R1p/1B1Nn2b/P2p1Kp1/bp1npR2/Nq5P/BQq3B1 w - - 0 1 legal: proof: d4 b5 b4 a5 f4 f5 g4 c6 gxf5 Nh6 f6 Ng8 f5 axb4 e4 c5 dxc5 Qc7 f7+ Kd8 Qd4 Ra6 Qd1 Rf6 e5 Qb6 exf6 Kc7 Ba3 Kc6 Bc1 Qd8 Kf2 Kc7 Kg3 e5 a4 d5 c4 g5 c6 e4 c5 h6 Nh3 b3 Nf4 b2 Be3 g4 Ra3 b4 Bb5 Ne7 Nc3 b1Q Bg1 Qa2 Qb1 Qd2 Na2 Qd7 Rf3 Bg7 f8B e3 f7 b3 f6 Ng8 Bd6+ Kd8 f8B Qb2 f7 Bb7 c7+ Kc8 Be5 Ne7 Bf6 Qc1 Ba1 d4 Nd5 Bc6 Kf4 Kb7 c8N Rh7 Ncb6 Qb2 Na8 Qc8 Qf1 Na6 Qb1 Be8 c6+ Ka7 c7 Nc6 Qd1 Nab4 Qb1 Qe6 c8N+ Kb8 Nd6 Ne5 Nb7 Qc6 Bf2 Qbc1 Rf1 Q6c3 Bg1 Q3b2 R1f2 Bf6 Rc2 Be7 Rc6 Nc2 Re6 Ba3 Rd6 Nb4 Bg7 Qf2 f8R Qfb2 Rff6 Bh5 Bf8 Nbd3+
N2BrRr1/k2n3R/p7/2N2p1n/p2n1R1p/3Q4/2B1BPpP/1KNqR1Nr w - - 0 1 legal: proof: d4 c5 dxc5 d5 a4 b5 e3 bxa4 Be2 e6 Bd3 d4 Bf1 d3 g4 Kd7 Ne2 Be7 Ng1 Bf6 g5 Bd4 exd4 f6 g6 e5 Be3 Bb7 Bh6 Bd5 Bc1 Bf7 gxf7 Qe7 Be3 Qe8 Bc1 Qd8 Kd2 Kc6 f8R Kb7 c4 h5 b4 g5 d5 g4 c6+ Kb6 c7 a6 c8B e4 c5+ Ka7 b5 h4 d6 g3 c6 g2 d7 Rh5 c7 Rc5 Nc3 Rc6 Be2 Rd6 Rb1 Ne7 Rb4 Qe8 d8R Qc6 Bf5 Qc5 c8N+ Kb7 b6 Ng8 Na2 Re6 Rd7+ Qc7 Qb3 Re8 Rh7 e3+ Kd1 d2 Rf4 Qe7 Kc2 d1R Qd3 Nd7 Kb1 Qd6 Be4+ Kb8 b7 f5 Nb6 Ka7 b8N Re1 Nh3 Rd1 Re1 Nf6 Ng1 Qd5 Rhh8 Nh5 Rh7 Rd2 Bb2 Rd1+ Nc1 Qd6 Bf6 Qd5 Bg4 e2 Bd8 Qd4 Qh3 Qd6 Bc2 Qd5 Qd3 Qd6 Rf1 e1N Be2 Nf3 Re1 Nd4 Rhh8 Ndf6 N8d7 Qd5 Nc5 Nd7 Rh7 Rb8 Bg4 Rc8 Na8 Qf3 Re2 Rf1 Re1 Qd1 Ne2 Rh1 Ng1 Rc6 Bf3 Rg6 Be2 Rg8
KBqbRR1N/2Q1nr2/2q3n1/bB1N1p1k/2p5/1NP1qP1B/5N1R/3q1bBr w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 Kd2 a5 Kc3 c5 Kc4 f5 Kd5 Kf7 b4 Kg6 g4 h5 e4 c4 g5 d6 e6 a4 b6 a3 b7 h3 e7 a2 e8R h2 f3 h4 c3 h3 e5 Qb6 e6 Qe3 e7 Rh4 b5 Ra7 b6 Nd7 Kc6 d5 b8B d4 b7 d3 Nd2 Kh5 Nb3 d2 g6 Ne5+ Kc7 Bh6 g7 Bg5 Rf8 Be6 e8B+ Ng6 Bb5 N8e7 g8N Bd5 Nh6 Be4 Nf7 Bd3 Nh8 Bf6 Qe1 d1Q Qg3 Be2 Rb1 a1B Rb2 Bd3 Re2 Bb2 Qd6 Ba3 Qd8 Qg5 Be3 Bb4 Kb6 Qh6 Qc7 Bg5 Bc5 Qe1 Re5 Qe3 Bg2 Bf1 Re6 Nc6 Ree8 Bd8 Bd4 Nce7 Bc5 Ra2 Bd4 Ba5+ Ka7 Ra1 Ka8 Rd1 Ne2 Re4 Nec1 Re6 Bc5 Rf6 Nd3 Rf7 Nf2 Rb1 Bba7 Ra1 b8N Rc1 Nc6 Ra1 Rg1 h1Q Bb8 h2 Bh3 Qg2 Bca7 h1Q Nb4 Qgg5 Bb6 Qe6 Rg3 Qc8 Rg2 Qf6 Rh2 Qe3 Nd5 Qc6+ Qb7 Be2 Bd4 Qd1 Bc5 Bf1 Ba7 Qf6 Qc7 Rb1 Bd4 Qc6+ Ka7 Qg5 Bg7 Be2 Nd3 Qdd2 Bd4 Rh1 Bg1 Qd1 Nf2 Qf4 Nd2 Bf1 Nb3 Qb6+ Ka8 Qfe3 Rg2 Qf6 Rh2 Qc6+
rBQ2N1K/1pp3N1/1b4q1/BP1R2R1/1NP2R1n/1nN2b2/1n2B2b/k2rBq1b w - - 0 1 illegal: No proof kernel
1Q1R1q1b/1pBRp1n1/R4prN/3BP1Nk/1P3R1r/1b1b4/2n1rNN1/B2n2K1 w - - 0 1 illegal: No proof kernel
1n2qR2/1bQn1rp1/4RNB1/3p3q/1p1PR1KR/1Pb1B1NN/Nr1q2k1/4B2b w - - 0 1 illegal: No proof kernel
1qkB3r/2bn2B1/2ppQ1RR/2PB2r1/prNN4/1b2Nn1R/Pq1qKN2/2B5 w - - 0 1 illegal: No possible last move, all moves rejected
B2b1R2/p3Bb2/rp1KB1nQ/1bpRR2B/P5b1/2N2qnr/2PN4/2RNn2k w - - 0 1 illegal: No proof kernel
qN1k1N2/2Rp1pNR/3B2Bp/3pKRN1/8/5PrB/Bbb1b1rP/Q1qn3n w - - 0 1 illegal: No proof kernel
3kN1B1/1pbp1K1p/1P6/BR3bq1/2Bqpn1P/3Nr1R1/NRR2p2/1nQrN3 w - - 0 1 illegal: No proof kernel forced: wxLB
1Q2R2B/bR3RN1/B7/5K1P/rb1P3n/qpr2NR1/1n2QQ1Q/rk2n3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 h5 gxh5 b6 a4 b3 a5 Qd6 Qxb3 Ba6 Qd1 Bc4 a6 Be2 Bxe2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 h4 Kd4 f6 g5+ Kf5 c5 f4 e5 d6 b5 h6 c4 h7 e4 d7 e3 f7 e2 a7 Kd3 Rh3+ Kd4 Nf3+ Kd3 Na3 c3 Rb1 g4 Nc4 b4 Bb2 c2 Nd6 c1R Ne8 g3 Ng7 g2 Rg3 Qe7 d8R+ Nd7 Re8 g1B h5 Rac8 a8Q Ba7 Qb8 Nc5 Qe1 Kc2 Qf2 e1N Ba6 Ncd3 Qh2 Qb7 Bd4 Be7 f8R Qa8 Rf7 Nb2 Qe5 Rc3 Qee2 Na4 Rb3 Nb2 d3+ Kb1 Be5 Nf6 d4 Ng4 Bf6 Rf8 h8Q Ne3+ Kg6 Qb7 Rd8 Ng4 f5 Ka1 Ne8 Bec5 Nd2 Ned3 Re7 Bd6 Bb5 Ne3 Bg7 Rf7 f6 Bac5 Kg5 Rf8 f7 Ne1 Rdd7 Rg8 f8Q Qa7 Qff2 Nf5 Nf3 Nh4 Re6 Qa8 Rf7 Qa3 Re5 Rf8 Qg8 Ka2 Bh8 Ra1 Ng7 Ra8 Qb8 Ra4 Ba6 Kb1 Ree7 Ba7 Rb7 Rc4 Re3 b3 Re8 Rc3 Kg4 Bb4 Kf4 Ng6+ Kf5 Nh4+
2r5/pk1P3B/5N1Q/1P2Q1bR/1Q1r1NB1/n2B3r/q2nRb2/1Qn1K1B1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 b4 c5 bxc5 Bg7 h4 gxh4 d6 Be6 d3 Bc4 dxc4 Bf8 g4 Kd7 f4 Kc8 f6 e5 c6 h5 c7 h3 f7 h2 g5 e4 f5 e3 f6 e2 g6 h4 c5 h3 g7 Rh7 Be3 Rh5 Nd2 Na6 Qb1 Be7 f8Q Kb7 f7 Rc8 Ne4 Bg5 Ra2 Rh4 Nf6 Nb4 Qe7 Rg4 f8Q Rd4 Qe5 Qe7 Rd2 Qf7 Bf2 Qa2 Qfe7 Nh6 g8B Nf5 Bh7 Ne3 Q7e6 Nc4 c6+ Kb6 Qg4 Na3 Qh4 Be3 Qh6 Bg5 Nf3 Be3 Nh4 Bg5 Ng2 Be3 Rg1 h1N Nf4 h2 Rg5 Ng3 Rh5 h1R Bg1 Rh3 Rb2 Ne4 Rc2 Rg8 c8Q Nd2 Qg4 Rc8 c7 Kb7 Rb2 Qf7 Rc2 Na2 Qh4 Nc1 Ra2 Rb8 Rb2 Qa2 c8B+ Kb6 Bg4 Kb7 d7 Rc8 Ne6 Bg5 Nf4 Ncb3 Kf2 e1B+ Ke2 Nc1+ Kd1 Nf3+ Bfd3 Bf2 Re2 Be3 Qe1 Rd5 Qa5 Nd2 Qab4 Rd4 Ke1 Bf2+
3r1qK1/QNB5/Br1P3r/1N1k1qn1/1QR5/2bB1RbP/pBN3n1/3N4 w - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b6 h5 gxh5 a5 b3 a4 Bc4 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Ra5 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 Kd3 c5 Ke4 e5 f4 g5 d4 c4 a5 a2 h6 c3 b7 g4 d6 g3 Kd5 e4 f6 g2 a6 e3 d7 c2 a7 e2 h3 e1Q f5 Qee7 h7 Bg7 Na3 Qb4 Bd3 Bf8 Bb2 c1R Nc2 Rb1 Ne2 g1B Nc3 Qc7 d8N+ Ke8 Ke6 Bg7 f7+ Kf8 d5 B1d4 Rf1 Qba5 Rf3 Bf2 Qg1 Bc5 Nd1 Na6 b8B Be3 Nb7 Qd8 Bc7 Nh6 d6 Rb8 a8B Bf4 Qa7 Nb4 Ba6 Bd4 Bd3 Kg7 f8N Nd5 Ba6 Nf7 f6+ Kh6 Bd3 Kg5 Ba6 Bc3 Bd3 Rg8 h8Q Rg6 Qh7 Rh6 Qe4 Bg3 Qb4 Ne3 Ba6 Qc8+ Ke7 Qcf5 Ne6+ Kg6 Ned4 Rd8 Nb5 Ng5 f7 Ng2 f8Q Qa3 Bc1 Rb3 Bb2 Qa5 Rc1 Qf4 Qe8+ Kf5 Kf8 Kf6 Kg8 Qf5 Qf8+ Ke5 Qa3 Kd5 Qb4 Qf6 Nca3 Bce5 Rc4 Bc3 Nc2 Qa4 Nbd4 Qd7 Nb5 Qdf5 Na5+ Ke5 Be4 Ke6 Bd3 Kd5 Qa4 Rb4 Nb7 Rb3 Nbd4 Rb5 Qb4 Rb6 Nb5 Qxf8#
RQ2BRrN/2R5/2P3qp/1Q5K/2n1nBNb/1P4q1/4b3/1NR1nkNq w - - 0 1 legal: proof: b4 a5 h4 b5 d4 g5 hxg5 f5 e4 c5 exf5 cxd4 Bxb5 a4 Bf1 a3 b5 Ra4 Bxa3 Rb4 Bc1 Rb3 axb3 Bh6 Ra7 Bg7 Ra1 Bf8 Ke2 Kf7 Kf3 d5 Kg4 e5 c4 d3 f4 d2 b6 e4 b7 d4 c5 d3 g6+ Kf6 g7 h6 Qe2 d1Q Kh5 d2 g4 e3 g5+ Kf7 f6 Ke6 f7 Kd5 f5 Ke4 g6 Qd3 f6 Nc6 b8Q Q1c2 Ra8 Bd6 f8N d1Q f7 Na5 c6 Be5 Bh3 Nc4 Bd7 Bf6 Be8 Bh4 Ra7 Qcc3 Rc7 Ba6 Bd2 Qe1 Qf1 e2 Bf4 Ne7 g8N Nf5 g7 Nfd6 Ng6 Qcc2 f8R Qdg3 Bd7 Kd3 Nf6 Rg8 Nh8 Ne4 Be8 Bb5 Ng4 Qed1 Qf2 e1N Qfb6 Ba6 Qb5 Qdc1 Nf3 Ke2 Ng1+ Kf1 Rh2 Q2d1 Rc2 Qb2 Rc1 Qbg2 Ra7 Qd6 Ra8 Qe6 Rf7 Qh1 Rc7 Rf8 g8R Qf6 Rg5 Rg8 Rf5 Qg7 Q5b6 Na3 Qb4 Be2 Q4b5 Nc4 Rf8 Qg6+
q2NBb2/6KR/2Q1R1RN/4Np1Q/r3Bb1P/1N4P1/nR2n3/3kb1nb w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 fxe5 h4 axb5 h3 gxh3 Bb4 h4 Bf8 b4 g5 b6 a5 b5 g4 Nc3 g3 Nb1 g2 Ba3 Ra6 Bb4 axb4 Nf3 Ra3 Ng1 Rg3 hxg3 Qf6 Rh3 Qg5 Rh1 Qd8 Kf2 Ke7 Ke3 f5 Kd4 c6 e4 b3 b7 b2 d6+ Ke6 d7 Qe7 d8N+ Kd7 b6 Qe6 Nf7 Ne7 Ra7 Bg7 Qh5 Na6 b8R+ Bb7 Nf3 Rg8 Bd3 Qa2 Nh6 Ke6 Re1 g1B+ Re3 Ba8 b7 Nd5 Bc2 Rh8 Rg8 Bf2 b8R Bf8 Rh7 Be1 d3 Nab4 Nbd2 b1N Nb3 Nbc3 Rg6+ Nf6 Rb5 Bb7 Re2 Qa8 Bb1 Nba2 Rb6 Nd5 Rb2 Nf4 Ra6 Nh3 Bc2 Ng1 Bb1 Bg7 Bc2 Kd7 e6+ Kd6 e7 Bf8 e8B Ke6 e5 Rg8 Ke3 Kd5 Kf4 c5 Kg5 c4 d4 c3 e6 Kc4 e7 Nd5 Be4 c2 Re6 Kc3 Ne5 Nf4 Kf6 c1B d5 Nfe2 d6 Bf4 d7 Bc6 d8N Rh8 Bb1 Bh1 Be4 Rg8 Bb5 Rg7 e8Q Ra7 Qd7 Ra5 Qd5 Ra4 Be8 Bc5 Kg7 Be7 Bc2 Ba3 Qc6+ Bc5 Nd4 Kd2 Be4+ Kd1 Nb3 Bf8+
1q2N1k1/2Nb2Pr/NbpQ1R2/1B2Q2R/2R1P3/1r2p3/1K3N2/1n1qq1RB w - - 0 1 legal: proof: e4 g5 h4 d5 hxg5 b5 b4 a5 c4 f5 cxd5 e5 a4 f4 axb5 a4 d4 Nc6 dxe5 Na5 Be3 fxe3 bxa5 Bg4 Rh4 Bd7 Rh1 Bc8 f4 Kf7 g4 h5 f5 h4 g6+ Kg7 a6 h3 g5 h2 a7 a3 e6 a2 b6 c6 b7 Ne7 b8N Bd7 f6+ Kg8 g7 Qb6 f7+ Kh7 g8B+ Kg7 g6 Qb2 d6 Nf5 e7 Qb4+ Nc3 Qb6 e8N+ Kh6 g7 Be7 f8R Qb1 Rf6+ Kg5 Na6 Rh6 Nh3+ Kh4 Bgc4 Qd3 Nd5 Qb1 Ndc7 Qb8 Qd5 Kh5 O-O-O a1Q+ Kc2 Rh7 Nf2 Bd8 Qe5 Qa5 Bb5 Qe1 Rg1 h1Q Rc1 Qf3 Kb1 Qfd1 Bg2 Kg5 Kb2 Kh5 Nd5 Bb6 Ndc7 Kg5 Bh1+ Kh5 Qg3 Ne7 Rc4 Nd5 Qf4 Nc3 Qe5+ Bf5 d7 Nb1 Qe7 Bh3 d8Q Bc8 Qdd6 Bf5 Rf7 Bd7 Qde5+ Kh6 Rf8 Rh8 Rf6+ Kh7 Q7d6 Kg8 Nb4 Qd8 Nba6 Rb8 a8R Rb7 Rf5 Qb8 Rh5 Qa7 Rd8 Qb8 Rc8 Rh7 Rd8 Be6 Rd7 Bf5 Rf7 Bd7 Rf6 Ra7 Nc5 Ra3 N5a6 Rb3+
2k1rQ1Q/1N2r3/N4K2/Nb2p2q/N2R2q1/q3BPPb/r1p1R3/2B2R1R w - - 0 1 legal: proof: f4 b5 a4 f5 axb5 g5 e4 d5 d4 g4 Bd3 g3 exd5 Nd7 c4 Nh6 Bc2 Ne5 Be4 Nf3+ gxf3 fxe4 Na3 g2 Nb1 Nf5 c5 Ng3 hxg3 Bg7 Rh6 Be5 Rh1 Bd6 cxd6 Bd7 Kd2 Bf5 Ke1 Bc8 Kd2 Kd7 Kc3 h5 b4 a5 f5 c5 b6 a4 f6 h4 b7 c4 b8N+ Ke8 d7+ Kf8 b5 a3 b6 a2 d6 h3 b7 e3 f7 e6 d5 h2 Kd4 e2 Ke5 e1R+ Ne2 g1Q Nd2 c3 Nc4 c2 Na5 Qh4 d8R+ Kg7 f8Q+ Kg6 d7 Qb6 d6 Qg4 Re8 Qb5+ Qd5 Rh7 d8R Re7 Na6 Bd7 b8B Ra7 Qh8 Kf7 Qc5 Ra8 Rf1 h1B Ba7 Bg2 Rb1 Bc6 d7 Bh3 Ra1 Qb1 Qa3 Bb5 Bae3 Qbb4 Rb1 a1Q+ Nc3 Qbc4 Qc5 Qa3 Na4 Qg6 Rb4 Qcg4 Rd4 Qh6 Rb8 Be2 Rb1 Bb5 Kd6 Qhh5 d8N+ Kg6 Ndb7 Kf7 Rd8 e5 Rd2 Rc8 Re2 Ra8 Rd7 Rf8 Qb4 Ke8 Kd5 Rg8 Qf4 Rd1+ Ke4 Rd3 Rd4 Rc3 Kd5 Kd7 Qf8 Rb3 Rh1 Rb2 Qa8 Rh7 Bcd2 Qgg6 Rbf1 Qgg4 Bc1 Ra2 Qb8 Rf7 Qd6+ Kc8 Qdh6 Rf5 Ke6 Rgf8 Q6f6 Re8+ Qe7 Rg5+ Kf6 Rg7 Qef8 Re7
5Q1B/2R1bqR1/1K2p3/1r1P1RQP/1R4Q1/r5N1/2q1B2p/k2brQNq w - - 0 1 legal: proof: b4 b5 c4 a5 g4 f5 e4 d5 exf5 Qd7 cxd5 Qd8 a4 axb4 axb5 Bd7 Bc4 Be6 Bf1 Bc8 h3 h5 Ra6 g5 Ra1 Nf6 Be2 h4 Bf1 Nh5 Qf3 Nc6 Qd1 Ne5 gxh5 g4 Ra6 g3 Ra1 Ng4 hxg4 Rh6 Ra3 Rh7 Ra1 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 e6 f4 h3 g5+ Kf7 f6 g2 g6+ Ke8 b6 Kd7 g7 Kd6 g8R c6 f7 h2 f5 b3 b7 b2 b8R Ra7 f6 Qd7 Qg4 Qd8 Be2 Ra3 Rg7 Bb7 Nc3 b1R Bb2 Be7 f8Q Qe8 f7 Re1 Rc1 c5+ Kc4 Ke5 d6 Rh7 d7 Bf3 Kb5 c4 Ne4+ c3 Kb6 Kd4 d8Q+ Qd7 Ba1 Rh8 Rb7 Rg8 Rb1 Rh8 Rb2 c2 Rc7 c1Q d3 Qc4 Ng3+ Kc3 Rb4+ Kc2 Bb2 Kb1 d4 Qc2 d5 Rh7 Qh8 Qe8 f8Q Qf7 Qhg8 Rh8 Qd6 Ka2 Qc5 Kb1 Qf2 Ka2 Qf1 Rh7 Ba6 Bd1 Be2 Rh8 Rh7 Kb1 Q8g5 Rg8 Bh8+ Ka2 Rg7 Ka1 Nf3 g1Q+ Kb7 Qg2 Kb6 Ra2 Rg1 Qh1 Rg2 Ra3 Ng1 Bd8 Rf2 Be7 Qd8 Rf8 Rf5 Rg8 Qd6 Rga8 Qd8 R8a5 Qf8 Rb5+
1R2q3/4N1n1/BP1R2B1/N7/r1p2KbQ/1Rb1pbR1/2P1kN1Q/N2qb3 w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 e5 a4 a5 axb5 h5 gxh5 Qg5 b4 Bd6 d4 Bf8 d5 Nc6 b6 Ra6 b7 Ke7 f6+ Kd6 b5 Nce7 Bd2 Rc6 b6 Kc5 Bf4 Re6 dxe6 Kc6 Be3 Qg6 fxe7 Qe8 Bh6 Qd8 Qd2 Rxh6 Qd1 Rh8 Ke2 Kc5 Kf3 d5 b8R g5 e8N a4 h4 a3 h6 a2 h7 d4 e7 c6 h5 d3 h6 Kd4 Qe2 c5 Rh3 d2 Rg3 d1B Nh3 Bd7 Nd6 Qe8 Nb7 Ba4 Na5 Qb5 e8B Bg7 Bg6 Qe8 Nd2 Ne7 Rb1 a1Q Rb3 e4+ Kg4 e3 f4 Nf5 Nf2 Bc6 Rd8+ Bd5 Rd6 Rf8 h8R c4 h7 Rf7 Bg2 Ra7 Rg8 Bf6 h8Q Ng7 f5 Ke5 Qh4 Bf3+ Kh3 g4+ Kh2 Qb5 Rb8 Kf4 Bh1 Bb2 f6 Bc3 f7 Qe8 f8N Qc1 Rb4 Ra8 Ndb3 Qb1 Na1 Qc1 Nb7 Ra4 Qd2 Bde2 Na5 Qd1 Rb3 Ke5 Rg1 g3+ Kh3 g2 Kh2 Bd5 Kg3 Bg4 Qe2 Kd4 Kf4 Bd2 Re1 g1B Bhe4 Bb4 Bef5 Bd2 Bc8 Bc3 Ba6 Bh2+ Kg5 Ke5 Rg1 Bdf3 Rg3 Be1 Nh7 Bc3 Nf6 Bg1 Nd5 Kd4 Nd3 Bf2 Kf4 Bfe1 Qeh2 Bcd2 Rb5 Bb4 Ne7+ Kc3 Qg1 Kd2 Nf2+ Ke2 Qgh2 Bbd2 Rb3 Bc3
2r1Q3/kb3qq1/4QB2/br1QRP2/P5B1/5Q1n/RKN1b1Nn/4qnRR w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 Kd2 Kd7 Kc2 Kc7 f4 e5 a4 b5 h4 Kb7 d6 g5 d7 g4 c6+ Ka7 c7 b3+ Kb2 b4 f6 g3 f5 g2 h6 e4 h5 e3 f7 e2 h7 e1Q h6 Nf6 Nh3 g1Q Qe2 Nc6 Qd3 Ne7 Nf4 Qg7 Bh3 Rb8 Na3 Bb7 c8Q Ned5 Qf3 Qde7 Ng2 Nf4 Bg4 Nh3 d8Q Rg8 h8R Qe8 Kb1 b2 h7 Bd6 f8Q Bc7 Qdd7 Ba5 Rg1 Qef7 Qfe8 Rf8 Kc2 b1N Qdd5 b3+ Kb2 Nd2 Nc2 Nf1 Qce6 Rc8 Ra3 Rc5 Bd2 Rb5 Bc3 Rg8 Ra2 Rf8 Bh5 Ng4 Bf6 Ngh2 Bg4 Rg8 Q8c6 Rc8 Re8 Qe2 h8R Qe1 Ka3 b2 Re7 b1B Qe8 Rbc5 Kb2 Rb5+ Qdb3 Kb8 Qed5 Ka8 Re5 Ka7 Qde6 Bb4 Qbd5 Ba5+ Nb4 Bc2 Rh7 Bb3 Nc2 Bc4+ Ka3 Ng5 Qg3 Nhf3 Rhh1 N3h2 Qb3 Bd3 Kb2 Nh3 Qf3 Be2 Qfd5 Bb4 Qbf3 Ba5+
2r1B3/1RBB3B/K2Q2PN/rP2r3/3n2nb/2R1n2n/1qQ4Q/NQb1kr2 w - - 0 1 illegal: No possible last move, all moves rejected
N1RnNBR1/1qN1B1n1/2Pr1nKQ/7P/B2qQ3/q2b4/N2qnk2/1n3B2 w - - 0 1 legal: proof: e4 f5 exf5 c5 g4 h5 d4 cxd4 a4 b5 axb5 h4 Qf3 a6 Qd3 Kf7 Qd1 Ke8 Bg2 g5 Qe2 a5 Qd1 Bg7 Ra2 Rh5 gxh5 g4 Be4 g3 Bd3 g2 Ra1 Be5 Bf1 Bg3 hxg3 Ra6 Kd2 Rh6 Ke1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 b4 d3 f4 a4 c4 a3 g4 a2 c5 d6 b6 h3 b5 d2 b7 h2 b6 Qd7 g5+ Kg7 c6 Ne7 g6 Kh6 g7 Ng8 f6 Na6 b8N Nc7 f5 Kg5 b7 Kh4 f7 Kg3 f8B Ne6 f6 d5+ Kf5 e4 f7 e3 Kg6 e2 Bca3 e1Q Na6 d4 b8N d3 Nf3 g1N Nh4 Ne2 Nc7 Nd8 Qc2 d1N Na8 d2 Na6 Ndc3 Bae7 d1Q Nf5+ Kf2 Nd6 Qd4 N6c7 Ba6 Rg1 h1N Qe4 Nhg3 Nde8 Nf6 g8B Nf5 Rg4 Ng7 Rg1 Na4 Nc3 Qed2 Rb1 a1Q Na2 Qc8 Rb8 Qb7 Rc8 Bd3 Nc1 Qab2 Na2 Nge6 Kf5 Nd7 Bh6 Qbc3 f8Q Qa3 Qf6 Nac3 Bhf8 Nb1 Rg5 Nec5 Bb3 Nce6 Rg8 Rh6 Ba4 Rg6 Qg7 Rh6 Qg5 Rg6 Qh6 Rf6+ Kg4 Ng7 Kh4 Rd6 Kg4 Nge6 Kf5 Nf6 Kg6 Ng7
1q5N/3nR2n/K1BPN1RR/N2b2qP/R5Qn/1r1k4/N5Bp/1q1r1bQ1 w - - 0 1 illegal: No proof kernel
1qqBK3/3rNNb1/Q2p1bP1/Q2n3B/P2R1n2/1N6/n2N1q1B/r1R1B2k w - - 0 1 legal: proof: d4 f5 e4 c5 dxc5 g5 exf5 h5 g4 b6 f6 a5 f3 Ba6 b3 Be2 b4 axb4 gxh5 g4 Na3 g3 Nb1 Bc4 Na3 Be6 Nb1 Bg4 fxg4 Ra3 Bb2 Ra6 Bc1 Ra8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 c4 e5 h4 d6 a4 g2 f7 b3 g5 b2 h6 Qe8+ c6 Qc8 g6 Qc7 h7 Qe7 c5 Qd7 h5 Qe8 h6 Nf6 Ne2 Kf3 Bf4 g1N Nd4+ Kf2 Nb3 e4 Qh5 e3 Be2 Kg2 Bh2 Nh3 Rd1 Ra7 N1d2 Nd5 Rac1 Rd7 c7 b1Q c8Q Qa2 c6 Bg7 f8B Nhf4 c7 Na6 Kc6 b5 Be7 b4 Bd8 Qg8 Bg4 e2 Qe5 e1B Bh5 Bh4 Qe1 Nc5 Qa6 Ne4 c8N Bhf6 Ne7 Nec3 Qe5 Qe6 Qe1 Rf8 h8N Qc2 h7 Na2+ Nc4 Qd2 Nf7 Qf2 h8B Qg4 Ncd2 Re8 Nd4 b3 Qe5 b2 N4b3 b1Q Qc3 Bh6 Qca5 Bf8 Bg7 Qe6 Bh6 B8g7 Bg5 Qh3 Bh4 Rf8 Ne4 Rh8 Rd4 Qe6 Ned2 Qef5 Nc5 Qb8 Ncb3 Qg4 Bg1 Kh1 Bh2+ Qf1 B4g3 Qf5 Be1 Qf2 Bg4 Rh3 Bd1 Rg3 Bh5 Rg1 Rc5 Ra7 Rc3 Qe2 Beg3 Rd1 Be1 Ra1 Rc1 Qf2 Ng8 Ra8 Ne7 Qc2+ Kd7 Ra7+ Ke8 Qcc8 Qc3 Rc7 Qca5 Rd7
R1Rb4/8/1PpB2kn/1r2Pr1r/BqR1B3/Q2K2nq/1qNBR1N1/2Qb4 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 h4 g5 e4 f5 Ke2 Kf7 d4 g4 b6 f3+ Kd3 f2 h6 g3 d6 g2 d5 f4 h5 f3 d7 Bb4 d6 Qf6 d8Q Qf5 h7 Nc6 a6 Ba3 d7 Rb8 h6 Bc5 a7 Kg6 a8B Qf7 e5 Nce7 Ra4 Qf8 Nh3 g1R Be4+ Qf5 Qf8 c6 d8B Be3 Ra8 Bg5 Bc7 Bf6 Be2 f1Q Na3 f2 Bd6 Qg2 Nc2 f1Q Bd2 Qf4 Rh2 Be6 Bg4 Bb3 Qc1 Rf1 Bf3 Rd8 Bd1 Qh4 Ra4 Ra8 Rb4 Ra5 Rc4 Rb5 Qa8 Qhg4 Qaa3 Qf4 Ng5 Qgf2 Nf3 Bh4 Nfe1 Qd4+ Ke2 Qb2 Kd3 Bg5 Re2 Qh4 Ng2 Qe1 Bf4 Qb4 Bd2 Rf4 Ke3 Ba4 Bd5 Qg4 Kd3 Nf5 Bf3 Ng3 Be4+ Rf5 Re1 Ne7 Re2 Rf8 h8R Qh3 h7 Ng8 Qca1 Nh6 Qc1 Ra8 Rc8 Bd8 h8R Rb8 Rh7 Bb3 Ra7 Rb7 Raa8 Rf7 Bd5 Rh5 Be4+ Rff5 Nd4 Ba2 Ba4 Bb3 Nc2 Ng8 Nce1 Bd1 Nc2 Nh6
kBq1K1Q1/3PP1B1/BQ3r2/r1N4R/Nb6/2bq1r2/2b1nB1p/1R2NN1n w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 exf4 a4 d5 axb5 Ba3 c4 Be7 cxd5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 d4 Kc7 e4 Kb7 g4 f3 d6 f2 a6+ Ka7 d5 h4 d7 c4 Ke6 h3 Kf7 f4 e5 c3 g6 f3 d6 c2 g7 Qb6 d8B Qc7+ d7 Qc4+ e6 Qd4 g5 Nc6 g6 Qb2 b6+ Kb8 a7+ Kb7 e7 Nh6+ Ke8 Qc3 g8Q Bg7 Bb2 c1B Qd4 Nf5 Nd2 Ng3 Rb1 Rh6 Bb5 Bh8 g7 Rf6 Nf1 Bd2 Qb4 Nd4 Ba6+ Kc6 b7 Nde2 b8B Bb7 Rh2 Nh1 Bdc7 Be1 Bg3 Qc4 Qb3 Bb4 Bh4 Kb6 Be5 Be4 Bb2 Bc2 Qe3+ Ka5 Qb6+ Ka4 Ba1 Qc8+ Qd8 Bf5 Ng3 f1R Qh7 f2 Bb7 Kb5 Nf3 Rg6 g8N Rg1 Nf6 f1Q Ne1 Qf3 Nfe4 Be5 Nc5 Bc2 Qg8 Qd3 Nf1 R1g3 Bc3 Rf3 Bf2 Bd6 Bg7 Be5 Rg2 h2 Rg5 Bb2 Rh5 Rgf6 Be5 Rb8 a8N B2c3 Nb6 Ra8 Nba4 Ra5 Ba6+ Kc6 Bf4 Qc7 Nb2 Kb6 Nba4+ Ka7 B4g3 Qb7 Qb6+ Ka8 Bb8 Qc8+
B1R2q1r/Q1Pn1Nr1/1Qb4N/P1N1b3/1n1R1q2/1B5p/2n3q1/1BN1K1kB w - - 0 1 legal: proof: b4 a5 e4 g5 h4 c5 hxg5 f5 exf5 b5 d4 Kf7 dxc5 Ke8 bxa5 b4 a4 Ra7 Bb2 Ra8 Ba3 bxa3 f4 Kf7 g4 d5 c4 e5 g6+ Kf6 c6 h5 g7 d4 g5+ Ke7 g6 Kf6 c7 a2 a6 h4 a5 e4 a7 e3 c5 e2 c6 d3 Bg2 h3 Nc3 Na6 Rc1 a1Q Ne4+ Ke7 f6+ Ke6 f5+ Ke5 f7 Kd4 f6 Ke3 Nd6 Qb1 Qb3 Ne7 g8N Nd5 g7 Nb6 Nh6 Qb2 g8B Na4 Qb6+ Qd4 Be4 Bf5 c8B Bh7 Bcf5 Bg7 f8N N4c5 f7 Be5 Ne6 Nd7 f8Q Nb4 Qf7 Qf8 Nc5 Bg6 Qe7 Be8 Bb3 Rh7 Rc3 Rg7 Ndf7 Rd8 Bg2 Qf4 a8B Qh8 Na6+ Nc5 Rh2 Rc8 Qea7 Bd7 Bh1 Qe8 Qbc7 Qe7 Rc1 Rh8 Qcb6 Qf8 Rd1 Be8 Rg2 Bd7 Rg6 Be8 Rd6 Bd7 c7 Bc6 Re6 Qd4 Bh7 Nd7 Nc5 Qf4 Re8 Kd4 Bf3 d2+ Kf2 e1N Bb1 Nec2 Kf1 Ke3 Rc8 Qf6 Ne2 Qf4 Re1 d1Q Nc1+ Kd4 Kf2 Qdd2+ Kf1 Qdh2 Rd1+ Ke3 Rd5 Nd4 Ke1 Ndc2+ Kd1 Kf2 Bh1 Qhg3 Rd4 Kg1 Ke2 Qg2+ Kd1 Na1 Ke1 Nac2+
1BN1R2N/1PN1BBn1/n1q1nb1r/kr1bN1Pp/3Q1K2/8/2R5/3Qq1Br w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ra2 Kd7 g6 c5 Ke2 Kc7 Ke3 Kb6 d4 e5 f4 e4 g4 h6 g5 Ra6 g7 b3 f6 c4 f5 b2 d6 c3 f7 c2 f6 Qc7 d7 Rh7 d8B Be6 d5 Bc8 d6 Ra4 d7 Ra7 Nc3 Ra6 Nd5+ Kc5 b6 b1R b7 Ra4 Nf3 Be7 f8N Kc6 f7 Nf6 g8N Nh5 Bc4 Ng7 Re1 Bf6 Ng6 Na6 Bd2 c1N f8B Rh8 Bd6 Ne2 Rc2 Nd4 Bh2 Kc5 Bg1 Qc6 N8e7 Rh7 Bb3+ Kb5 Bb4 Rh8 Bd6 Rh7 Bb8 Rh8 Kf4 e3 Ke4 e2 Ke3 Rh7 Ba2 Rh8 Nc7+ Kb6 Kf4 Rh7 Bf7 Ka5 Nh8 h5 Qc1 Qb6 Be3 Rb5 Qb1 Ra3 Qc1 Rd3 Qd1 Qc6 Bg1 Rh6 Rf1 Qc5 Rf2 e1Q Rfe2 Qc6 Re6 Qb4 Ne5 Rg3 Nf5 Rd3 Nd6 Rh3 Re8 Rh1 Be7 Qe1 d8Q Be6 Nc8 Ba2 Qd5 Bc4 Qe4 Bd5 Qed3 Nb3 Qc4 Nbc5 Qcd4 Nce6+
1B1NNK2/PnBQrQ1b/p1qb4/2B5/kn1rbq1R/8/3NP3/2RN1qB1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 a6 Qf6 a7 Bd7 cxd3 Qe7 d4 Na6 d5 Qd8 a4 c5 a5 Nc7 Bh3 Na6 Bf5 Rb8 a8N Nb4 a6 Rh6 a7 Rf6 Bd3 Rf2 Ba6 bxa6 Ra3 Rb6 Ra5 Rh6 Ra1 Rh8 d4 f5 Kd2 g5 Ke3 c4 h4 f4+ Ke4 f3 e6 c3 Ke5 c2 d6 g4 e7 g3 h6 g2 h5 Qb8 h7 Qc7 d5 Qc6 h6 Bg4 d7+ Kf7 d8B Ke8 d6 Kd7 e8Q+ Kc8 d7+ Kb7 Nd2 Be6 Ba3 c1Q Rh4 Q1c4 Rc1 Ne7 Kf6 Nc8 Nc7 Kb6 Qf7 Ka5 Nh3 Bd6 Kg7 Re8 h8B Qf4 h7 Re7 Kf8 g1Q Be5 Bf5 h8B Bh7 Ne8+ Kb5 Bhf6 Qf1 Bc7 Rh2 d8N f2 Bb8 Rg2 Bd4 Rg4 Bfe5 Ka5 Qc2 Kb5 Qcf5 Ka4 Bc5 Qh2 Q5e6 Rd4 Qd7 Qf4 Bb2 Bc7 Ba3 Nd6 Bb6 Nb7 Bd6 Nd5 Bac5 Nb4 Be5 Bd6 B6c7 Qf3 Bh2 Qf4 Bg1 Qg2 Ng5 f1B Nh3 Qh1 Nf2 Bg2 Nd1 Bge4 Rc4 Qg2 Rc1 Qgf1
5b2/2Q1nK1B/5N1b/P4b1R/4Q2n/rPq2Q2/2bQ1pbN/1RNr1NBk w - - 0 1 legal: proof: f4 e5 b4 exf4 g4 h5 gxh5 d5 c4 Bd6 cxd5 Bf8 Nf3 b5 Qa4 a5 bxa5 Qf6 Qd4 b4 Ng1 b3 Qe4+ Qe6 Qc2 b2 Qb3 Qe3 Qd1 Qb3 axb3 Bd7 Nc3 Bh3 Nb1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 g5 h4 c4 h6 f6 h5 f3 h7 g4 h6 f2 Be3 c3 Nf3 g3 Nh2 g2 Nd2 g1B Rb1 Ba6 Kf5 c2 Kg6 c1Q Kf7 Kd7 d6 Kc6 d7 Kd5 d8Q+ Nd7 Qc7 f5 Bh3 f4 Bf5 f3 Ndf1 Ne7 Bg6 Rg8 h8Q Qc2 h7 Qc3 Qe1 Bc4 Qf6 Ra6 h8N Rd6 Bh7 Bd3 Ng6 Ke4 d5 Bc2 Nf4+ Rg6 Nd3 Ne5+ Ke8 Rd7 d6 Bh6 Nc1 Bf8 Bg8 Rg2 Bh7+ N5g6 Kf7 Rd8 d7 Rg4 Bd4 Rg2 Ne3 f1B Qd2 Rg4 Qc4 Bh3 Nef1 Be3 Qa4 Beh6 Bg1+ Qb4 Qfc3 f2 Qf6 Bg2 Qf3+ Ke5 e4 Qc3 Qc4 Nh4 Qb4 Rc8 d8Q Rc5 Qa8 Rd5 Qc4 Rd3 Qc7+ Kd4 Ra1 b1B e5 Re4 e6 Rg4 Qg5 Rd1 Qe8 Bf5 Qd2+ Bbd3 Rb1 Rf4 Qg4 Ke4 Qh5 Bc2 Qa8+ Nc6 e7 Rg4 e8N Rf4 Ng4 Kf3 Nef6 Ra4 Qe8 Ra3 Qe6 Bh3 Ngh2+ Kg2 Qhe2 Ne7 Qe2e3 Bhg4 Q6e4+ Bf3 Nhg4 Nhg6 Rh5 Nh4 Ngh2 Kh1 Qee2 Bg2 Q2g4 Bf4 Qgf3 B4h6
r2rbn2/2rB1N2/k1K4p/PR1r1Q2/QRbB3n/1q2Q3/2R3P1/3N1nRQ w - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 g5 b4 axb4 h4 f5 exf5 Kf7 hxg5 Ke8 f4 Bh6 g6 Bg5 fxg5 Qd6 Rh5 Qd7 Rh1 Qd8 Kf2 Kd7 Kf3 b5 Ke4 e5 a4 c5 d4 Kc7 g7 Kb7 f6 c4 g6 b3 f7 b2 f8Q b4 a5 c3 d6 c2 Kd5 b3 d7 h6 Bb5 e4 Qf5 e3 Rh4 e2 Nh3 e1R Nc3 b1B Ng5 b2 Nf7 Rg1 Be3 c1N Qa4 Qe8 d8R Ne2 Nd1 Re1 Bd7 Bd3 Ra2 b1R Rc2 Rf1 Rh1 Rf2 Rg1 Ne7+ Kc5 Rb4 g8R Ng3 g7 Nf1 d5 Ng6 d6 Nh4 Bd4 Qe6 Rgf8 Bc4 g8Q Rb1 Qgg5 Ka6 Qe3 Rb7 Rg8 Rd2 Rg4 Rba7 Rdg8 Rd3 R8g5 Rd8 Rf4 Nc6 Rh5 Ne7 Re4 Neg6 Kc6 Nf8 Bf6 Rb7 Be8 Ba2 Qe5 Nh2 Rb4 Nf1 Q5e4 Re7 Rhb5 Rdd7 Qf5 Bb3 Qeh3 Qe3 Qh1 Bc4 Bc3 Re5 Bb2 Rda7 d7 Rd2 d8Q Qb3 Qe7 Rd8 Ba1 Red5 Qe3 Rb7 Bd4 Be6 Ng5 Bf7 Bd7 Be8 Nf7 Rc7+
nqB5/Q2Rrr2/N2NPk2/5P1b/2N4r/2rpR2R/Q1R2Nn1/1Bb1K2b w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 h5 g4 f5 gxh5 c5 dxc5 f4 b4 f3 Bb2 Qh4 Ra3 Qd4 Rxf3 Qh4 Rf7 Qd8 Bd4 exd4 e4 d5 h4 a5 f4 g5 c4 d3 h6 d4 c6 g4 h5 g3 c7 g2 h7 a4 b6 a3 e5 a2 b5 a1R b7 Ba3 e6 Ra2 c5 Ne7 f5 Rc2 h6 Ng8 b6 Bb4+ Qd2 Ra6 c6 Be7 Rh2 Rc3 Na3 Nd7 b8N Ngf6 b7 Nh5 Qa2 Nf4 Nc4 Ba3 Nh3 g1R Nf2 Nb6 Rd7 Ra7 Na6 Rg7 b8Q Bb7 c8B Na8 c7 Rf7 Bg2 Bd5 Be4 Bc1 Qb6 Rb7 Qa7 Bc6 Rh3 Kf8 Re3 d2+ Kf1 d1B Bb1 d3 Ke1 Rg8 h8N Bh5 h7 Kg7 Nb4 Re7 Nf7 Rh8 Nfd6 Kf6 Na6 Qe8 Qa5 Bh1 Qa2 Rf8 h8R Rff7 Rh7 Rb4 Rh8 B5f3 Rh3 Bh5 Bb7 Qb8 c8R Ra4 Rc5 Rb4 Bc8 Ng6 Na3 Rh4 Nac4 Nf4 Nb6 Rb3 Rc2 Rc3 Nbc4 Ng2+
5b2/K1Pr2Nn/n3N3/N3R1p1/1n1r1nPk/NQ3q1b/3QRR2/B2RB1b1 w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 a5 bxa5 h5 d4 c5 dxc5 h4 e4 h3 exf5 Rh5 g3 Rh8 Bg2 hxg2 Kd2 Kf7 Kc3 Kf6 Kc4 e5 f4 g5 h4 e4 g4 e3 b6 d5+ Kb5 d4 c4 d3 c6 e2 a6 e1B h5 d2 c5 Rh6 c7 Bd7+ c6 Rh7 c8R Rg7 b7 Nh6 a7 Rf7 Na3 Rg7 Ne2 g1N Qb3 d1N Rh2 Nf3 Bd2 Be8 Nd4 Nh4 Re2 Bf2 Ne6 Qe7 Be1 Nf7 h6 Rh7 Ng7 Rh8 h7 Na6 b8N Ne3 Kb6 Bg1 c7 Ne5 Rd1 Nhg6 Nc6 Qf7 Na5 Bc6 Re8 Rd8 a8Q Rd4 Ka7 Nd7 Re5 Bg2 Qad5 Bh3 Qg2 Rg8 h8B Nd5 Qf2 Ndb4 Qfe3 Ndc5 Qec3 Ne6 Qd2 Ke7 f6+ Kd6 f5 Nef4 R5e3 Qd5 f7 Qg2 f6 Qf3 Ne6 Rg7 Re5 Be7 f8N Rh7 Nd7 Nf8 f7 Rg7 Nf6 Nh7 f8R Rf7 Re8 Bf8 Nh5 Rd7 Nhg7 Nbd3 Rc5 Ndb4 Rc4 Kd5 Rf2 Ke4 Rc2 Qd3 Re2+ Kf3 Rf2+ Kg3 Rc5 Qf3 Re5 Qe3 Rf5 Nc5 Nd8 Ne4 Nh5+ Kh4 Be5 Nc5 Ng7 Rd3 Ba1 Qg3 Ree2 R3d4 Nde6 Nca6 Rfe5 Qf3
Q2Q2B1/3B1n2/2N1Qb1K/r4qrR/1pRnrkP1/P3Rq2/Q1bNr3/4R3 w - - 0 1 legal: proof: c4 a5 g4 h5 e4 f5 exf5 d5 cxd5 g5 b4 h4 bxa5 Bg7 Ba3 Bh6 Bd6 Bg7 f4 Bh6 fxg5 Bf8 Bg3 hxg3 Ke2 Kd7 Ke3 Kd6 Kf4 b5 d4 c5 h4 b4 f6 g2 g6 e5+ Kg5 c4 a6 c3 a3 c2 a7 c1R g7 e4 h5 e3 h6 e2 h7 e1Q Rh5 Qee7 Qd2 Qe2 Nf3 g1R Qa2 Rd1 Nbd2 Nc6 Ne5 Qf2 Bb5 Nce7 f7 Qe2 Bd7 Qc7 Nc6 Nh6 g8B Bg7 f8R Rg2 Rf3 Nef5 Re3 Qa5 Kg6 Rh1 Re1 Qf3 Kg5 Bb7 Kg6 Re8 a8Q Re4 Qe8 Re2 Qe6+ Kc7 Kg5 Bf6+ Kg6 Nf7 d6+ Kb6 d5 Kc5 Nf1 Nd4 Nd2 Ng5 Kh6 Rf1 Bf7 Rg8 h8R Ba6 Rh7 Bd3 Rg7 Ra8 Bg8 Bc2 Rf7 Ra7 Rf8 Ra8 Rc8 Ra6 Be8 Qb5 d7 Ra5 d8Q Qd3 Bd7 Qf5 Qee8 Kd6 Rc7 Rff4 Qa8 Re5 Qf7 Rfe4 Qe6+ Kc5 Rg3 Qdf3 d6 Rd5 Nb3+ Kc4 Nd2+ Kd3 Rc8 Ke3 Rc7 Kf4 Rgh3 Qd3 Re3 Rdc5 Nb8 Be5 Reh3 R4e3 Bb5 Bf6 d7 Re4 d8Q Qe5 Bd7 Rd5 Rc4 Nf7+ Kg6 Qg3 Nc6 Qg2 Re3 Qf3 Qee7 Qe6 Qee8 Rg5+ Kh7 Nd6 Kh6 Qf5 Qe6 Nf7+
2k1r1N1/1r3nP1/4R1bp/Br1QN3/2KqqbN1/5P2/BQ1rnNQR/2Q5 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 a5 b4 c5 g4 e5 f6 h6 d6 e4+ Kc4 a4 d4 e3 f3 a3 g6 a2 d5 e2 b6 e1R f7 Ra5 g7 Nc6 b7 Nce7 b8Q Ba6+ b5 Ra3 g5 Qb6 g6 Qc7 Nd2 Bc8 b6 Qa7 b7 Re5 Rh2 Rh5 Nh3 Rf5 Ne4 Rd3 Bd2 Qa8 Qc1 Nf6 g8N Ng4 g7 Ng6 Nef2 Nf4 Ba5 Rd2 Bd3 Be7 Bb1 Ne2 f8Q Bh4 Qf6 Bg5 Qd4 Bf4 Qa7 Rf7 b8Q+ Qb7 Qb6 Qc6 Qbb2 Ne5+ Kb3 Re7 Ng4 Nf7 Nhf2 c4+ Kb4 c3 Qbc2 Qb7+ Kc4 Qa8 Qbb2 Bb7 Qg6 c2 Qg5 Kc8 d7+ Kb8 d8N Kc8 d6 Be4 Qgd5 Rb7 Nc6 Bg6 Qg5 Rb5 Nce5 Qe4 d7+ Kb7 Ne7 Re8 Ng8 Kb8 d8Q+ Kb7 Qd6 Kc8 Qd5 Rb7 Qd1 c1Q+ Qdc2 Qg1 Qcc1 Rb5 Qh5 Rb7 Qh3 Rb5 Qg2 Rb7 Nh3 Qge3 Nhf2 Rb5 Bc2 Rb7 Bb3 Rb5 Rb1 a1R Ba2 Rb7 Qbc2 Rb5 Rb4 Rb7 Rb6 Rb1 Re6 R1b5 Q2b2 Q3xd4+
1k2nn1Q/1r1nq3/3r2PP/B4q2/1RBNQNBp/2Q1Q2R/1b4q1/Br4K1 w - - 0 1 illegal: No possible last move
3q2k1/1nq5/4nbp1/PbQrQ3/R4P1B/5R1q/B4Bnb/NBK1NQQ1 w - - 0 1 legal: proof: c4 b5 b4 a5 e4 d5 g4 h5 gxh5 f5 exf5 axb4 d4 c5 cxd5 c4 Bd3 Ra7 Be2 Rc7 Bf1 Rc5 dxc5 Rh7 Ne2 Rh6 Ng1 Rh8 Kd2 Kf7 h4 e5 f4 b3 a4 b4 h6 g6 c6 b2 h5 e4 h7 b3 c7 Qf6 a5 Be6 c8B Bc5 h6 Nc6 d6 Nd8 d7 Nb7 d8B Ne7 Rh3 Nc6 Bd3 Bd7 Na3 b1Q Nc2 b2 Nf3 Nd4 Qf1 Ne6 Ra4 Bb5 Na1 Bg1 Ne1 Bh2 Rf3 e3+ Kd1 Qh4 f6 e2+ Kd2 Qa2 Bb1 c3+ Kc2 Re8 h8Q Qd5 h7 Qh3 Be3 Qd6 Bg1 Qc7 Bf2 Rf8 Be7 Rd8 Qg1 Rd3 Qd8 Rd6 h8Q Rd5 Qd6 Qd8 Qe5 Qc7 Qh4 Kg8 Qhg3 Qd8 Qf1 Qc7 Qgg1 Qd8 Nd3 e1N+ Kd1 Ng2 f7+ Kh7 f8Q c2+ Kd2 c1B+ Kd1 Be3 Beh4 Bd4 Qc5 Kg8 Ne1 Qc7 Ba2 b1Q+ Kd2 Qbf5 Kc1 Qf8 Bd7 Qfd8 Bc6 Rd7 Be4 Rd5 Beb1 Bc3 Qee3 Bg7 Qe5 Bf6
1rK4n/2B4p/R1PQ3R/rP4q1/2NBN1Q1/3rB1n1/b1NB1Nkq/6nq w - - 0 1 legal: proof: d4 b5 e4 f5 exf5 Kf7 a4 c5 dxc5 g6 axb5 Bg7 f6 Ke6 f7 Bf8 h4 Bh6 f4 Bf8 g4 Qb6 g5 Bg7 f5+ Ke5 f6 Bb7 Bh3 Qd8 Bg4 Bh6 Bf5 gxf5 g6 Bg5 hxg5 Ke6 Rh5 Ba6 Rh1 Bc8 Kd2 Ke5 Kc3 Ke4 Kc4 a5 f8B e5 b4 f4 c6 d5+ Kc5 a4 c4 a3 f7 f3 c7 d4 Kb6 d3 c5 f2 g7 f1N g6 d2 c6 a2 Nh3 Qd5 Bc5 Qd6 f8B Nh2 Be3 Nh6 g8N Be6 Kb7 Na6 c8N Nf7 b6 Nf3 g7 Ng1 b5 Qd8 Bb2 Qg5 Na3 Nc5+ Kc7 Bc4 b7 Ra5 b8B Bb3 Nc2 Be6 Qc1 Kf3 Bbd4 d1R Nb6 e4 Nf6 Rd3 g8Q Kg2 Bh6 Bc4 Bd2 e3 Nf2 e2 Qd1 e1Q Kc8 Ne4 Bc7 Ng3 N6e4 Qe2 Rh3 Bb3 Nc4 Qeh5 Rh1 Qh2 Qf8 Rg8 Qg4 Nh8 Qd8 Qe5 Bhe3 Qg5 Rf1 a1Q Qf8 Qb2 Ra1 Qb1 Ra3 Ba2 Qd8 Ra7 Ra6 Qa1 Rb6 Ra5 Ra6 Rg7 Qd6 Qc1 Bd8 Rb7 Bc7 Rb8+ Kd7 Qhh4 Bf4 Nf3 Bfe3 Qhh5 Rh3 Qh1 Rh4 Ng1 Rh3 Qhg6 Rh6 Q6h5 Qa3 Rb7 Kc8 Q5h2 Qd6 Rb8+
1b3b2/R1q2P2/3nBB1p/bn2R1N1/1PqN2Q1/n2B1R2/kB3qrQ/2K1R3 w - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 a4 d5 axb5 Ra7 cxd5 Bd7 e4 fxe4 f5 Be6 f6 Bc8 h3 g5 Ke2 Bf5 Kf2 Ra8 gxf5 g4 Ke2 g3 Ke1 Nh6 Bd3 Rg8 Bf1 Rg4 hxg4 Ng8 Bg2 Qc8 Bh3 Qd8 Bf1 Bh6 Nh3 Qc8 Bc4 Na6 Rf1 Kf8 Nc3 Bg7 Ra3 Nh6 Rh1 Kf7 Ra2 Qd7 Nf4 Rh8 Nh3 Nb8 Bf1 Ng8 Ng1 Bf8 Nb1 Qd8 Ra1 Ke8 d4 Kf7 Kd2 e5 d6 c5 d7 c4 b6 e3+ Kc2 c3 g5 g2 d5 h6 b3 e4 d6 e2 b7 e1B Rh5 e3 Nh3 g1Q Qg4 e2 Bb2 a4 Ra3 Na6 b8Q Nc7 Kc1 c2 Nd2 Qf2 Nf3 Ba5 b4 e1B Bd3 Ne7 Nd4 Rg8 Ra2 Qc8 d8R a3 d7 Nb5 Qh2 Qc7 Re8 Nc8 d8B Ncd6 Ra1 Bc3 Re1 a2 Be7 Ke8 g6 Kd7 f7 Qc4 Ne6 Kc6 f6 Be5 g7 Kd5 Nhg5 Bg3 Rb1 a1N Nd4 Nc8 Bd8 Bb8 Re7 Ncd6 Ra7 Be7 f8R Qc7 Re8 Bf8 Rh3 Qc4 Rf3 Qc7 Bg6 Kc4 Re5 Qc6 Ba3 Qc7 Bd3+ Kc3 Nde6 Qc4 Bb2+ Kb3 Nd4+ Ka2 Be7 Rh8 g8B Rh7 Ne4 Rg7 Be6 Rg5 f7 Rg6 Qf5 Rg2 Ng5 Bc7 Qg4 Bb8 Bf6 Qd5 Re2 Qb3 Kd2 Qd5 Bh7 Qb3 Bhf5 Qd5 Re1 c1Q+ Kd3 Qc6 Kd2 Nc2 Bd3 Qc7 Kc1 Qdc4 Re5 Nca3+
QKq4k/r1P3N1/5p2/P2rRn2/N1R2RQ1/2B1R3/r1Qb1qb1/qBbQ4 w - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 a5 c4 h5 gxh5 e5 f4 a4 fxe5 Nc6 b3 Nd4 Bf4 b4 Bc1 Nb5 cxb5 axb3 Kf2 g5 Kf3 d5 a4 f6 e4 Kf7 h4 Kg7 a5 b2 Ra4 d4 b6 b3 e6 d3 h6+ Kh7 c6 d2 b7 Qe7 b8Q Qc7 e7 Bb7 e8R Qb6 h5 Qb4 e5 Qd6 Ke4 g4 e6 g3 Qg4 d1Q e7 Qd8 Rc4 g2 Bd3 Qe1+ Ne2 g1B Bd2 Qg3 Nbc3 b1R Na4 b2 Nd4 Ra6 Nf5 Qh4 Ng7 Bb6 Qh2 Qg3 Qd1 Ba8 Bc3 Qc8 Kd5+ Qg6 Kd6 Bf2 Rf1 Bh4 Rff4 Ra1 Bf5 b1Q Qf2 Qa2 Bb1 Qgc2 Qh2 Q8f5 Kc7 Ra7+ Kb8 Be1 c7 Be4 Qhe2 Qd2 Qd3 Qf2 Q3c2 Bf3 Rd8 Bc6 e8R Ne7 Rd3 Bd2 Re3 Bh1 Rd8 Bb7 Rd5 Qb2 Rdc5 Ra2 Rb5 Qa1 Rd5 Kg8 h7+ Kf7 h6 Rg8 Ne8 Rg5 Ng7 Qd7 h8Q Re5 h7 Nf5 Rfe4 Ba3 Rf4 Bac1 Rdc5 Re6 Rce5 Rd6 Qg8+ Kg6 Qd5 Qe6 Qdd3 Bh1 Qd5 Bg2 Qa8 Rd5 h8Q Kf7 Qhh5+ Kg8 Qg6 Kh8 Qgg4 Qc8+
K1Q3n1/r3RB2/n6q/RQb3r1/2p1n1PB/r1k2BPN/2r2N1Q/2rQ2B1 w - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 Ba3 h3 Bf8 b6 a5 b3 g5 Ba3 a4 Bb2 g4 hxg4 a3 Bc1 Ba6 Nf3 Bb5 Ng1 Ba4 bxa4 Bh6 Nf3 Bg7 Ng1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 b7 c5 d6 h5 Kd5 f5 e4 a2 e5 h4 d7 h3 a5 h2 a6 f3 a7 f4 e6 f2 e7 f3 e8Q Bd6 Be3 Qa5 d8B Be7 Nd2 Qa4 Nh3 Qb5 Ne4 Na6 b8Q Nh6 Bc4 f1R Nef2 Bf8 Bh4 Qb6 Qb5+ Kc3 g3 Ng8 Qc8 Rh6 Qe2 Rb1 Re1 h1R Qd1 Rc1 Re2 Rb8 a8B Rc2 Qg1 Qg6 Qh2 Rb7 Ree1 Bd6 Kc6 Rh5 Bf7 c4 d5 Bc5+ d6 Ra7 Re2 Qg7 d7 Rhc1 d8Q Rg5 Qd1 Qf8 Bf4 Qg7 Re7 Qh8 Be3 Qh5 Rb1 a1R Rb2 Qh8 Ra2 Qh7 Ra5 Ra3 Nh1 Qh8 Bg1 f2 Bb7 f1N N1f2 Nd2 Ba8 Bb4 Kb6 Bd6 Bf3 Qh6 Kc6 Ne4 Kb6 Ra8 Kb7 Bc5 Nd3 Nb4 Ndf2 Ra7+ Kb8 Rc7 Ka8 Na6 Rd7 Rb7 Re7 Ra7+
1nnRn2N/4N1R1/1QnNRNr1/1Kqb1P2/1p1k3b/1nq3B1/P3B1R1/4Q3 w - - 0 1 illegal: No possible last move
1rN3Q1/1Q1R1K1P/1rqN1B1r/2qn4/1k3b2/n2pNR1B/4P2q/1B1Nq1B1 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 b6 h5 gxh5 a5 b3 a4 Qd3 a3 Qd1 Bb7 Bg5 Bc6 Bc1 Ba4 bxa4 Bc5 Bg2 Be7 Bf1 Bf8 Kd2 Ke7 Kd3 f5 Kc4 g5 Kd5 d3 c4 a2 h4 f4 e6 d2 c5 d6 b7 g4 h6 g3 h5 g2 h7 f3 a5 f2 h6 Nc6 b8Q Qc7 a6 Bg7 a7 Bc3 Nh3 g1Q Qdb3 d1R+ Nd2 Bb2 Q3b7 Ne5 c6 Re1 Nc4 Bd4 Ne3 Qd7 c7 Nc4 Rb1 a1Q Rb3 Na3 c8N+ Ke8 e7 Be5 Bg2 f1Q Nf2 Qh2 Bh3 Qc3 Nfd1 Qdc6+ Ke6 Nf6 Rg1 Qa5 Rg7 Bf4 Bb2 Qac5 Bd4 Nd5 Rc3 Rf8 h8B Rg8 Rf7 Rg6+ Bhf6 Qff2 h7 Rh1 Rg7 Qe1 Rd3 Rh6 Rg3 Rg1 Rf3 Rg3 Nc4 Rgg6 Bg1 Nc3 Nce3 d5+ Qd6 Rb8 a8B d4 Rd2 Qc7 Qe5 Nd5 Qg5 Rg7 Rd3 Rf7 Qg8+ Rf8 Kf5 Kd7 e8N Rf7 Rd2 Rg7 Ned6 Rgg6 Qb3 Q7b6 Bb7 Kc7 Ke6 Qbb5 Ba6 Kc6 Kf7 Qa4 Bd3 Qab5 Bb1 d3 Rb2 Qa6 Qb4 Qab6 Qe4 Qa6 Rb7 Qab6 Ndc4 Kb5 Rd7 Qbc6 Qe7 Kb4 N4d6 Rg5 Rd8 Rb6 Qb7 Re5 Rd7 Re8 Ne7 Ra8 Nec8 Rb8
2r1kr2/1b1RPN2/1r4p1/1BQ1N3/2NrqR2/b2q2P1/RB4NK/1Q1qn2R w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 axb5 e5 c4 g6 cxd5 Nc6 f4 exf4 h4 Nce7 h5 Nf5 h6 Ng7 hxg7 Qg5 Ra4 Qe7 Ra1 Qd8 Rh4 f5 Kf2 h5 e4 c5 d4 f3 Kg3 c4 d6 f2 d5 c3 e5 c2 d7+ Ke7 b6 Kf7 e6+ Ke7 d6+ Kf6 b7 Ne7 g8Q Nc6 b8N Rh7 a6 Ne5 a7 Nf3 Nc6 Rb8 a8R Rb6 Nh3 Bb7 Bb5 f1Q Nd2 Rg7 Ba3 c1R Nf4 Qc4 Qb3 Qe4 Ne5 Rc8 Qd3 Re7 Bc1 Re8 R8a2 Rc4 Bb2 Rc8 Ndc4 Re7 Rf1 Ne1 Qb1 Re8 Kh3 Re7 g3 Rg7 Ng2 f4 Rf2 f3 Rf1 f2 Rg1 f1R Nc6+ Qe5 Re4 Rf7 Rd4 Rf4 Re4 Be7 Qf8 Rg4 Rd4 Qf5 Rf1 Qe8 Rg1 Qd3 d8N Rf4 d7 Ba3 Qd6 Rf8 Nf7 Re4 d8R Rg4 Rd5+ Rd4 Re5 Qe7 Re4 Qe8 Qc5 Qe7 Na7 Qe8 Rd6 Ke7 Rf4 Qc6 Rgf1 Qce4 Nc6+ Ke8 e7 h4 Nge3 Nf3 Kg2 h3+ Kh1 h2 Rd7 Qd5 N6e5 Q5e4 Kg2 Qe2+ Kh3 Q2d3 Ng2 h1Q+ Kg4 Qh2 Rh1 Qg1 Kh3 Qge1 Qa1 Q1e2 Qb1 Ne1 Kh2 Qed1
QQ1r2K1/Pn1nN3/BRrP2B1/3q2kN/6q1/q4p2/b5R1/Q2RRnQn w - - 0 1 illegal: No possible last move
Q1n1r2r/5B2/q4PN1/3r2bp/PQ1KR1n1/5r1Q/r1kNR3/rRB3RQ w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 Kf2 Kd7 Ke3 Kd6 d4 h5 f6 c5 g7 b5 g6 e5 g5 e4 a3 b3 Bc4 b4 Nf3 b2 Rh4 b3 Qh1 Nc6 Ne5 Nh6 g8R Qc8 g7 Qa6 g6 Ne7 Nd2 Nc8 Rb1 Ra7 Rf4 Rd7 a4 Ng4+ Ke2 e3 Kd3 e2 Re4 e1R Re2 Be7 Re8 Bf8 g8Q Bh6 g7 Bg5 Ng6 Rf1 Qf7 Rf3+ R8e3 Re7 g8R Re4 Qb7 Re8 Ra1 b1R Qb4 Rb2 Rb1 Ra2 Kc3 Kd7 d6 Kc6 d7 b2 Bf7 c4 d8Q Rh7 Qbe7 Rh8 Qdd7+ Kb6 d5 Ka5 Kd4 c3 d6 Kb4 Re4 c2 Qe5 Ka3 Qf4 Kb4 Qdf5 Ka3 d7 Kb4 Ra1 b1R d8Q Rbb3 Rb1 Rbb2 Kd5+ Kc3 Qb8 Kd3 Qb4 Ra1 Qfd7 Rba2 Qe6 Nh6 Qeh3 Ng4 Ba3 c1R Rg7 Rcc2 Bc1 Rcb2 Kc5+ Kc2 Kd4 Rbb3 Qd5 Rbc3 Qa8 Rcd3+ Kc5 Nh6 Ne5 Bh4 Rg1 Bg5 Ng6 Rd7 Rgg2 Ng4 Rg1 Rde7 Kd5 Re5+ Kd4 Rd5+
1k1rr1B1/1p1B1bQb/1qb2n1K/2BQ1P2/1B4r1/2b1RN1P/1Qr2N2/3RQ3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 Bd7 Ne2 Be6 Ng1 Bc8 hxg5 h5 Bb5+ Nc6 Bd3 h4 Bb5 h3 Na3 h2 Be2 Ne5 Nb1 Ng6 Bd3 Nf4 Bf1 Nh3 gxh3 Qd6 Qa4+ Qd7 Qd1 Qd8 Ke2 Kd7 Kf3 c5 Kf4 Kc7 d4 b3 a4 c4 f6 b2 g6 e5+ Kg5 e4 f4 c3 f5 c2 a5 e3 g7 e2 a6 e1R d6+ Kb8 d5 Rh7 d7 Ra7 d6 Qc7 d8Q Qd7 f7 Rh6 Nc3 b1B Bb5 Re2 Qe7 Qd8 d7 Qc7 d8Q Rc6 Bd2 c1R Nf3 Qb6 Ra3 Rc7 Bd7 Rc4 Qe1 Rb4 Nd1 Ra8 Nf2 Ba2 Re3 Nf6 g8B Bg7 f8B Rc2 Qf7 Bh8 Qg7 Rg4+ Kh6 Bf7 Bdb4 Red2 Rf1 h1B Bfc5 Bg6 Rg1 Bh7 Rf1 Qe6 Qa5 Qb6 Qa3 Rd6 Qb2 Re6 Rg1 Re8 a7+ Kc7 Nd4 Bc6 Nf3 Rb8 a8Q Rd8 Qa7 Ra8 Qa5 Kb8 Be8 Be6 Bd7 Bed5 Qaa2 Bf7 Qd5 Ne8 Qg6 Bc3 Qg7 Nf6 Qec1 Ka7 Rd1 Rac8 Qcd2 Kb8 Qe2 Re8 Qe1 Rcd8
1B2B3/Bk6/Rb1pb1q1/PQ1q1Q2/2PqR1rR/1qN1b2R/Nq5K/3n2B1 w - - 0 1 legal: proof: g4 a5 b4 b5 h4 g5 f4 f5 gxf5 c6 d4 g4 f6 axb4 e4 c5 dxc5 Nc6 e5 Nd4 f5 Ne6 Bd3 Ng5 hxg5 Qb6 Bf1 Kd8 Nc3 Kc7 Nb1 Kc6 f7 Qd8 Ke2 Ra6 Kf2 Kc7 Ke1 Rf6 exf6 Kc6 Kf2 e5 Kg3 h5 a4 b3 g6 b2 g7 b4 Qd3 h4+ Kh2 h3 Bf4 b3 Nc3 b1Q Qb5+ Kc7 c6 b2 Na2 Rh4 Ne2 Ne7 g8R Bh6 f8Q Nd5 f7 Nc3 f6 Nd1 Nec3 Bg5 Be3 e4 Ba7 e3 Rh8 e2 Qfc5 e1Q f8B Qee8 f7 Bh6 Qf5 Be3 Bfc5 Qg8 f8B Qb3 a5 Qc1 Bc4 b1Q Bf7 Qcb2 Be8 Qf6 Bd4 Qg6 Bfc5 d6 Rh7+ Bd7 Bb8+ Kc8 c7 Be6 Bb6 Kb7 c8R+ Qg7 Rh6 Qg6 Rh8 Qb4 Bdc5 Qd4 Rc6 Qb3 Rh6 Q1b2 Rc1 Nf2 Rce1 g3+ Kg1 g2 Kh2 Rg4 Rh4 Nd1 Re2 Bg5 Re4 Bd8 B6a7+ Bb6 Rf1 Qf2 Rfe1 Qd4 R1e3 g1B+ Kh1 h2 Reh3 Qd2 Bd4 Be3 Bc5 Bg5 Bf2 Qd4 Bg1 Rf4 Kg2 h1Q+ Kg3 Qf3+ Kh2 Rg4 Qf1 Bbd8 Ra6 Bb6 Q1b5 Bc1 Na4 Bd2 c4 Qfd3 N4c3 Be3+ Qf2 Qd5 Qc2 Q3d4 Qf2 Qa1 Qf5 Qab2+
1rrqN3/4PP2/7B/R1rBkpKb/N4RB1/2rr2bQ/N4b2/BbQ4N w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 g5 a4 Na6 axb5 Nb8 h4 gxh4 e5 Bh6 Qb3 Bg7 Qd1 Bf8 f4 f5 Rh2 Nf6 Rh1 Nbd7 exf6 e5 Bd3 e4 Bf1 Ne5 fxe5 Bd6 Nc3 Bb4 Nb1 Bf8 Ke2 Kf7 Ke3 a5 Kf4 h5 d4 c5 b4 e3 g4 c4 d6 Ke6 d7 e2 b6 e1B b7 c3 b8B h3 b5 c2 d5+ Kf7 g5 a4 e6+ Kg6 d6 h2 e7 a3 b6 h4 b7 a2 Be2 h3 Bg4 Rh6 Nc3 Ra3 Nge2 Rh8 Ng3 Rh6 Rf1 h1B Na4 Qc7 d8Q Bg7 Qh8 Kf7 g6+ Ke6 Kg5 h2 d7 Rc3 d8N+ Ke5 Ne6 Rh3 Rf4 Bf3 Nh1 Bg3 Be3 Be4 Qc1 Bd7 Qh5 Qd6 Nc7 Be8 Bd2 Bh8 g7 Qd8 g8B Bg6 Qh4 Bh5 Bd5 Bf2 f7 Rhd3 Qh3 Rc5 Rb1 a1R Rb5 Raa3 Ra5 Rac3 Ba7 Bg3 b8N Bf2 Nba6 Bg7 Qb2 c1R Ne8 Rb1 Qc2 Rb8 Nb4 Bg3 Qc1 Bh8 Nf2 h1R Na2 Re1 Nh1 Bg7 Qb2 Rc1 Qb1 R1c2 Qc1 Rcc8 Bae3 R3c5 Bb4 R2c3 Ba3 Bf2 Bb2 Bh8 Ba1 Bf6+ Kh6 B6h4 Bd2 Bhg3 Kg5 R5c7 Be3 Rc5 Rf3 Rd4 Kh6 Bb1 Bg5 Bg6 Rf4 Bh7 Kh5 Rdd3 Bh6 Bg6+ Kg5 Bh5
k3r3/1R3b1r/3RB1b1/1QKp2bP/3n2q1/1Q1p1QR1/n1PQ1RNB/3N1n2 w - - 0 1 legal: proof: d4 b5 h4 f5 g4 h5 a4 c5 axb5 cxd4 e4 g5 hxg5 h4 exf5 Qb6 Ra6 Qg6 Ra1 Qh5 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 Kd2 Kd8 Kd3 Kc7 Kc4 Kb7 b4 a5 f4 d5+ Kc5 a4 f6 h3 b6 h2 b5 a3 f5 d3 f7 a2 f6 Bd7 g6 Bg7 f8Q e5 f7 e4 Ne2 e3 Nbc3 Rh6 Qd2 Be6 Nf4 e2 Bh3 e1Q Nd1 Qf1 Ng2 Bf6 g7 Ne7 g8R Nf5 Rg3 Qe2 Re1 h1B Rb1 a1N Rf1 Ra5 Rf2 Bg5 Rb2 Ka8 b7+ Ka7 Qe8 Ne3 f8Q Nc6 b8R Bf7 Rb6 Nf1 Be6 Nd4 Rd6 Qg4 Rb3 Ra2 b6+ Kb7 Ba3 Rh7 Qb5 Rb2 Bb4 Ra2 Bc3 Ra8 Rb4 Rb8 Rb1 Ka8 b7+ Ka7 Ba5 Re8 Bc7 Nab3+ Kb4 Nc1 Kc5 Na2 Qb3 Nc6 b8Q+ Ka6 Q8b5+ Ka7 Bb8+ Ka8 Bc7 Nd4 Rb2 Bg6 Qf3 Bf7 Qd7 Nc6 Qb6 Reh8 Qf5 Nh2 Nf4 Rh6 Rgg2 Ne5 Rc6 Nef3 Be5 Ng1 Rd6 Ne2 Qbb4 Rb8 Qbc3 Qh4 Rb7 Qg4 Qb5 Nf1 Qcb3 Rh7 Rg1 Bg2 Qe4 Bf3 Qee3 Be4 Qf3 Re8 Rgg2 Qh4 Rg4 Qh3 Ng2 Nd4 Bh2 Beg6 Rg3 Qg4
1R3q2/4Q1RK/Rnb1b1P1/QQ3b2/np1r1p2/R1Bq2P1/3Q1NN1/rk3B2 w - - 0 1 legal: proof: b4 d5 h4 b5 f4 e5 fxe5 g5 hxg5 a6 c4 Nd7 cxd5 Nb8 a4 Bc5 a5 Bb6 axb6 a5 Rh5 axb4 Rh3 Nh6 Rh1 Ng8 Kf2 Kd7 Kg3 h5 Kh4 f5 d4 c5 e4 b3 g3 f4 d6 Kc6 d7 b2 e6 b4 b7 c4 e5 Kb5 d5 Nh6 e7 Qg8 e8R Qg7 d8Q Ra6 d6 Nd7 b8R+ Nb6 e6 Ng4 g6 Ne5 Kg5 h4 d7 h3 e7 h2 Nd2 b1B Ra3 Qf8 Bb2 Bf5 Bc3 Nd3 Nh3 Nb2 Nf3 Na4 Qd2 Ra8 Rg1 h1B Nh4 Bc6 Nf2 Ra6 Qc7 Rh7 d8Q Bce6 Ng2 Kc5 Bb2 c3 Q8d7 c2 Bc3 Rg7 Kh6 c1Q Rb7 Qe1 Reb8 Qe2 e8Q Kc4 Qde7 Qd3 Rh1 Rg8+ Kh7 Ra5 Ra7 Rd5 Ra6 Rd4 Ra2 Kb3 Q8d7 Bce4 Qb5 Bc6 Ra1 Nc4 Qca5 Ncb6 Qe3 Kc2 Ra3 Kb1 Rh5 Bh3 Re5 Bhf5 Qd2 Qf6 Rd5 Rc8 Rd7 Qf8 Qg5 Rd8 Rg7 R8d5 Qe7 Rc5 Bb2 Rc2 Ba1 Ra2 Bc3 Ra1
1r1Nkn1Q/q1q5/6p1/1pQQ1R1r/2N3n1/bQPrNN2/B1B2Pb1/2K3R1 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 h5 g4 c5 gxh5 f5 exf5 d4 d3 c4 dxc4 d3 c5 d2+ Ke2 dxc1Q Ke1 Qf4 Ne2 Qg5 Ng1 Qc1 h4 e5 a4 b5 h6 e4 h7 g6 c6 e3 c3 e2 f6 Ba6 f7+ Ke7 h5 Qc7 h6 Qc8 c7 Qh3 c8N+ Ke6 Nf3 Qh4 Nd6 Ke7 Nf5+ Ke6 Na3 Bc8 a6 Qcg5 a7 Qgg3 Kd2 Kd7 a5 e1R a6 Bd6 f8Q Bf4+ Ne3 Be5 Kc1+ Qd4 Rh5 Qd6 Rf5 Qg1 Bd3 Nf6 Bc2 Ng4 Nac4 Bb7 Qc8+ Ke7 Qc5 Nd7 Rb1 Rag8 a8B Nf8 a7 Ke8 Ra1 Be4 Bd5 Qc7 Rb1 Bd6 a8Q+ Kd7 Qa2 Ke8 Qb3 Qa7 Be6 Qg3 Ra1 Re2 Qdd5 Rd2 Rb1 Rd3 Ra1 Rg7 Rb1 Rhg8 h8N Rh7 Nf7 Be7 Ra1 Qgc7 Nd8 Rhh8 h7 Bd6 Nfd2 Bg2 Nf3 Be7 Qcd4 Bb4 Q4c5 Rg7 Rb1 Rhg8 h8Q Rh7 Kb2 Rh5 Rg1 Rg7 Kc1 Rd7 Nb7 Rd8 Bg8 Rc8 Nd8 Rb8 Qe6+ Qe7 Ncd2 Qa5 Qb1 Rg5 Qee5 Rh5 Ba2 Qa7 Qed5 Qe5 Qbb3 Qec7 Ndc4 Ba3+
1B1bk3/3N1n1p/4nRNR/2Bb1q2/q1QPbpP1/2NKQr2/5B1N/4r1B1 w - - 0 1 illegal: No possible last move
2Q2K1k/1BBBNp2/1nP3B1/1qqr2Rb/3nQR1P/6r1/Nb2Np1r/4N3 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 d4 c5 dxc5 b4 f4 exf4 a3 Rh7 axb4 Rh6 b5 Rh8 Kd2 d5 Kd3 g5 Kd4 g4 Ke5 d4 c4 d3 e4 f3 h4 g3 b6 g2 b7 f2 h6 d2 c6 Be7 c7 Kf8 c5 Na6 b8N Ra7 c6 Ba3 h7 Kg7 Ne2 g1R Qa4 d1Q Nd7 Qe1 Nbc3 Rg6 Bf4 Qd1 Rg1 Bb4 Rg5 Bf8 Na2 Bb7 c8Q Ne7 Nc5 Q8d7 Nd3 Nf5 Ne1 Nc7 a6 Rg8 h8N Ra8 a7 Rb8 a8B Ba6 Bb7 Q7d3 Bh3 Nd4 Bf5 Be7 Qc4 Bf6+ Kd6 Q1b1 e5 Nd5 e6 Qe3 e7 Nb6 e8B Qb5 Bed7 Be5+ Ke7 Ra8 Rg2 Rg3 Ng6 Rh3 Qc2 Rh2 Qe4 Qc1 Rg5 Qc2 Nf8+ Kh8 Bg6 Bg7 Bd6 Qcc5 Rd1 Rb8 Rd3 Be5 Rf3 Bg7 Rf4 Be5 Qc7 Rd8 Qc8 Bg7 Be6 Rd7+ Ke8 Be5 Bc7 Rd5 Bd7 Nf5 Nc2 Bb2 Ne1 Rg7 Nh7 Nd4 Nf6 Rh7 Ng8 Rg7 Bh7 Rg6 Ne7 Rg7 Kf8 Rg6 Rgf5 Rg3 Bg6 Qbb4 Nec3 Be2 Rg5 Bh5 Ne2 Qbb5
3b2N1/1QqpBr1Q/3KRP1b/3Rr2N/N1P2n1k/2b3p1/4q3/1BQnNQ2 w - - 0 1 legal: proof: e4 c5 g4 b5 a4 f5 axb5 Bb7 exf5 Bc8 d4 cxd4 b3 h5 gxh5 a5 b6 a4 Ne2 a3 Ng1 Ba6 Bf4 Bb5 Bc1 Ba4 bxa4 Rh6 Bd3 Rh7 Bf1 Rh8 Ke2 Kf7 Kf3 Kf6 Ke4 g5 Kd5 e5 c4 g4 h4 g3 f4 e4 a5 a2 b7 d3 h6 e3 h7 e2 h5 e1B h6 d2 a6 Ne7+ Kd6 Qa5 a7 Bg7 Bd3 Qd8 Nf3 Rg8 h8Q Qe8 h7 Qc8 Nc3 Na6 b8N Qe8 Rh5 Bf2 Bb1 Bd4 Ne1 Qf8 Na4 Qc8 Ba3 Re8 Nc6 Nc5 Qc1 Ng8 Ne7 d1Q Rg5 Rb8 a8Q Qe2 Qb7 Nd3 Rh5 Nh6 Ng8+ Kf7 f6 Kg6 f7 Re5 f8Q Bc3 Rf5 Ng4 Rf6+ Kh5 f5 Nf4 Re6 Bf6 Qhg7 Bd2 h8N Ne3 Ng6 Nd1 Qh7+ Kg4 Bc5 Bd8 Bb4 Nh5 Qff7 Bh6 Nf4 Kh4 Ba3 Nf6 Nh5 Nd5 f6 Ra8 Qfg6 Nf4 Qd3 Rb8 Qdf3 Ra8 Qf1 Rb8 Be4 Ra8 Rb1 a1B Rb5 Bc3 Bb4 Bb6 Rd5 Qc7+ Ke7 Rf8 Bb1 Qd8+ Kd6 Rf7 Bc5 Bba5 Bb6 Qc8 Bd8 Bb6 Be7 Bd8 Qb5 Qb7 Qb4 Qc8 Qb7 Qc7+
1kq5/2b1nN1P/3QR1N1/1bNP1pp1/5RBQ/b3K1N1/rQnrQ3/4b2B w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 e5 g4 e4 gxh5 e3 d4 Qd6 fxe3 Qa6 e4 Qh6 e5 Qxc1 Kf2 Kd8 b4 a5 h4 c5 e4 Kc7 b6+ Kb7 e6 f5 b5 g5 e5 a4 e7 c4 e8B c3 e6 c2 h6 a3 e7 a2 h5 Qb2 d6 c1B+ Ne2 Ra5 d5 Ra8 h7 Bh6 d7 Qc3 Ng3 Ra3 d8N+ Ka8 b7+ Ka7 Rh4 Qd2+ Qe2 Qc3 Bg2 Qb3 Nf7 Ra4 Nd2 Bg7 h6 Ra3 Bh1 Bc3 Nde4 Be6 Nc5 B1d2 Rf4 Qc4 Re1 a1B Qg4 Be5 Qh4 Bdc3 Ke3 Bd7 Re2 Nc6 Re1 Nb4 Re2 Kb6 b8Q+ Ka5 b6 Bb5 b7 Kb6 Qd8+ Ka7 Qd6 Ra2 Re1 Bab2 Re2 Ba4 Bb5 Ba3 e8Q Ne7 Ba6 Rg8 h8N Rd2 h7 Bb5 Ng6 Rf8 Qed7 Ra8 Q7e6 Bc6 Bb5 Bd7 Ba4 Bb5 Bd1 Nc2+ Kf3 Na1 Ke3 Ba5 Re1 Bec3 Bg4 Bc7 Qe4 Kb8 Qf3 Bab4 Qe2 Raa2 Ref1 Bb2 Re4 B4a3 Rff4 Bc3 Re6 Nc2+ Kf2 Ba4 Qd7 Qa6 Nfe5 Ka7 Qc6 Rd4 Nf7 Be1+ Kf3 Rd2 Qd7 Bc6 Qd6 Kb6 b8Q+ Qb7 Qh8 Ka7 Qb2 Qc8 Qc1 Bb5 Qb2 Na1 Ke3 Ka8 Nf1 Kb8 Ng3 Nc2+
1rQ1b3/B3p3/1rP2RBr/kNb3KQ/B7/1qpN1rnP/R2n2Q1/B3Q3 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 d5 b4 c6 c5 Rh6 Qe2 Rh8 bxc6 Rh7 b5 Rh8 Qc4 dxc4 Ke2 g5 Ke3 a5 f4 g4 d4 g3 c7 Kd7 f6 a4 f7 a3 f5 c3 Kf4 a2 c6+ Kd6 d5 Kc5 f6 Kb6 h6 g2 h7 Qe8 d6 Qd7 h3 Ra3 Bb2 Ra8 Nf3 g1R Ne5 Ra6 Nd3 Rg3 Na3 Rf3+ Kg5 Qd8 d7 Bb7 c8B Ka5 b6 Nh6 Nb5 Qc7 d8Q Re3 Qd5 Nf5 Qg2 Bg7 f8Q Qd6 f7 Ng3 Bf5 Qe6 Bg6 Rf3 Qc8 Bd4 f8Q Qb3 Qff5 Bc5 Qe5 Nd7 Qe1 Ne5 Rg1 Ba8 b7 Nc4 b8B Rb6 Ba7 Nd2 Be2 Rb8 Rf1 Bb7 Bd1 Ba6 Rc1 a1R Rc2 Ra4 Ba1 Rb4 Rb2 Rb6 Rc2 Rh4 Rf2 Rh6 Ra2+ Qa3 Ba4 Qb3 Rf1 Rhf8 h8Q Re8 Nd6 Bc4 Nb5 Bf7 Qhe5 Rg8 Qef5 Rf8 Qg4 Rd8 Qh5 Be8 Rf2 Re3 Rf6 Rf3 Qcg4 Ra8 Qc8 Rab8
3nB1N1/k1N5/2pQ1NqQ/Bp4B1/R3n1qr/1n2PP2/1b2K1qR/1Bb1N3 w - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 e5 fxe5 f5 Ba3 f4 Bb2 Qf6 Bc1 Qd8 h3 g5 Qb3 b5 Kd1 f3 Qb2 g4 Qb3 f2 Kc2 g3 Qa4 Bg4 hxg4 Kd7 Qb3 Ra3 Qa4 Rf3 gxf3 Nc6 Kb2 Ke7 Qd1 Nb8 Kc2 Ke8 Kd3 Kd7 a4 Kc8 d6 Kb7 g5 h5 a5 h4 a6+ Ka7 g6 b3 e6 b2 g7 g2 d7 c6 e7 h3 e8B h2 Nh3 g1B Ra4 Qh4 d8B Qf4 Nc3 b1N Ne4 Qc7 Nf4 Qe5 Ba5 Ne7 g8N Bh6 Ng2 Nf5 Nef6 Qg3 Ne1 Nd4 Qb3 Qf4 Qe6 Nd7 Qh3 Bg5 Qh6 Nb3 Bh3 f1Q Bf5 Qg2 Be4 Ka8 a7 Bd4 Bf5 Kb7 a8N Bb2 Nc7 Ka7 Bh7 Qfg4 Bf5 Bh4 Ke3 Nc3 d4 Rh7 d5 Ne4 d6 Ndc5 d7 Ne6 d8Q Bg5+ Kd3 Bf4 Qd6 Nd8 Bcd2 Qg6 Bc1 Q2g4 Bcd2 Bfe5 Bg5 Bc1 e3 Beb2 Ke2 Rh8 Rg1 h1Q Rg2 Qg1 Rh2 Rh7 Qhf8 Rh4 Qh6 Nec5 Bc2 Ne4 Bb1 Q1g2+
6b1/1BP4Q/pB1B2r1/4P1nR/1NbRqQ2/Bb2r2p/K5r1/1N1NkqN1 w - - 0 1 illegal: No possible last move, all moves rejected
4bRB1/1k2N1p1/2b1BN1r/1B1bnb2/1b6/1NN3PB/4r1pP/1QKR1Q1q w - - 0 1 illegal: No extended proof kernel
Bb1q2QR/1PQb1NNp/pQb2kB1/5N2/1Q1N2KR/2b1P3/6n1/1rnb4 w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bd6 b3 Kf8 Ba3 Ke8 Bc5 Bc8 Be3 Bf8 h4 a6 g4 Bh6 h5 Bf8 Bf4 gxf4 g5 Ra7 Rh3 Rb7 Rh4 Rb6 Rh1 Rg6 hxg6 Be7 Kf2 Ba3 Ke1 Bf8 Kf2 Ke7 Kf3 c5 d4 f5 e6 c4 b6 c3 e3 c2 b7 c1B b4 Bb2 g7 Qb6 d6+ Kd8 d7 Ke7 d8N Qc7 g6 Qc2 b5 Bd7 d5 Qc4 d6+ Kf6 b6 Qb5 e7 Nc6 e8N+ Ke5 b8Q Qc5 Nf7+ Ke6 Na3 Bc3 Nb5 Nge7 g8B Na5 g7 Qc7 Rc1 Ng6 Bg2 Qd8 Qd4 Nb3 Qb4 Be7 Rb1 Nc1 Ne2 Bh4 Rh3 Bg3 Qc7 Bh2 Ng3 Nh4+ Kf2 Bc6 d7 f3 Rb2 f4 Nf5 Be5 Bh1 Ng2 Rh4 Bc3 Nbd4+ Kd5 N7d6+ Ke5 Bf7 Rf8 g8Q Bg3+ Kf1 f2 Neg7 Kf6 Bg6 Re8 Nf7 Re5 Rc2 Rb5 Qa3 Rb1 Qb4 Nb3+ Ke2 Nc1+ Kd1 f1B Rb2 Qe7 d8Q Bfb5 Qdb8 Qd8 Qbb7 Nd3+ Ke2 Bh2 Rc2 Nc1+ Kf2 Bd7 Kf3 Bbc6+ Kg4 f3 Qa7 f2 Rb2 f1B Rb3 Ne1 Qab8 Bcb5 Ba8 Ng2 Qba7 Bf4 b7 Bh2 Qab6+ Bbc6 Rb2 Bb5 Rf2 Ba4 Rf4 Bb3 Re4 Bf4 Re8 Bd1+ Ne2 Ba4 Qgf8 Bb5 Qb8 Ba4 Nd4 Be6 Qc8 Bb8 Qfd6 Qe7 Qdc7 Bed7 Rh8 Bb3 Qf8 Qd8 Qg8 Bd1+
1r2N1Qb/3p2p1/1R1nRP1Q/1R2Bnb1/b2P2n1/B5NN/1R3Kbk/1Nq5 w - - 0 1 illegal: Other
7q/b1r2N1n/Q1QB2B1/Qr1R1Q2/3BNpq1/2B1p2R/bP3b1P/b1k2K2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 c4 d5 cxd5 Rh7 a4 Rh6 axb5 Rh8 e4 gxf4 d4 Nc6 e5 Kd7 d6 Ke6 d5+ Kf5 e6 Nb8 Ra3 Kg5 Ra1 Nd7 exd7 Kf6 b6 Ke5 h6 Ke4 h7 a5 b7 f5 b8Q c5 Ke2 e5 Qb6 f3+ Ke1 c4 Qa4 f4 Qa6 Ra7 Nd2+ Ke3 Q4c6 e4 Nh3 c3 Ng5 a4 Ra3 Rc7 Nf7 Nf6 Bd3 f2+ Kf1 c2 Rb3 Qe8 d8B a3 d7 a2 d6 a1B Be7 Rg8 h8Q Rg5 d8B Nh7 d7 Rb5 Qe5 Bg7 Bd6 Qh8 Qe6 Bd4 Qf5 Ba7 Bf6 Bb7 d8Q Bc8 Rc3 Be6 Ra3 Ba2 Bc3 Qd4 Be2 Qh8 Bh5 Kd3 Bg6 Ke3 Nc4+ Kd3 B1d2 c1B Be3 Kc2 Bed4 Be3 Rg1 Kc1 Rg5 Bd2 Rh5 Be1 Nd2 e3 Ra5 Be6 Ne4 Ba2 Qda8 Rb3 Ke2 Bb8 Q8b7 Ba7 Rd5 Rb6 Qa5 Rb4 Qba6 Rb5 Kf3 f1Q+ Nf2 Rb6 Rh3 Qe2+ Kg2 Qg4+ Kf1 Rb5 Ne4 Bf2
1krRQK2/3P2P1/2BRqbp1/2R1qRpB/3Qb3/6nn/b4N1N/2NN2b1 w - - 0 1 illegal: No proof kernel
1K2N1RR/1P2k2B/N1nn2R1/4b3/3r2N1/p3QqqP/N1R2p1q/Q1q1Bb2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Rh6 f4 exf4 axb5 a4 Nc3 Ra7 Nb1 Ra5 bxa5 Rh8 Kf2 g5 Kf3 c5 Ke4 f5+ Ke5 g4 e4 c4 d4 g3 h3 c3 a6 c2 a7 g2 a8N a3 h6 f3 d6 f2 h7 f4 b6 f3 d5 Bd7 b7 Bh6 Rh2 Bd2 Nc3 Na6 Nc7+ Kf7 Bd3 f1Q Na2 Bb4 Bd2 c1Q Be1 Be6 d7 Bc3+ Kd6 Qf2 e5 Qdh4 d8R Bc8 e6+ Kf6 e7 Qcc2 e8N+ Kf7 Bf5 Nb8 Na6 Qe3 Kc7 Nf6 d6 Nc6 d7 Ke7 Rb1 Qee2 Rb6 Ne4 Qa1 Nd6 Be4 Rf8 h8R Be5 Bh7 Rf4 Rg8 Qc1 Rh8 Na7+ Kb8 Rd4 Rc6 Qee4 Rc2 f2 Nf3 g1Q Rg2 Qeg4 Nh2 Qf3 Rg6 Qhg3 Ng4 Q3h2 Nef6 Qgg2 Rdg8 Qgg3 Ne8 Nc6+ Kc7 Kf7 d8Q Be6 Qg5 Bc4 Qf4+ Ke7 Qe3 Nb4 Kb8 Bf1 Ka7 Nc6+ Ka8 Nd8 Kb8 Nc6+
1R1Q2n1/P1bpn1B1/1N1N4/K3n1N1/1B2Qr1P/1rpq3n/kN6/2Qq1RQ1 w - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 e5 dxe5 Ke7 gxh5 Ke8 c3 Nf6 c4 Ng8 e4 f5 e6 b4 e5 Bb7 Bg2 Bc6 Be4 Bb5 cxb5 fxe4 Kd2 Ke7 f4 g5 a4 c5 h4 b3 Kc3 b2 a6 c4 Kb4 c3 a5 g4 b6 e3 b7 e2 f5 e1N h6 g3 h7 g2 f6+ Ke8+ e7 Kf7 e6+ Kg6 f7 Kf6 Nh3 Ke5 Na3 g1Q Nc4+ Ke4 Bh6 Ra7 Rb1 Nf3 Qd2 Bg7 e8N Qc8 f8B Ng5 e7 Nc6+ Ka4 Qd4 b8Q Kd5 Qbh2 Rb7 Rhf1 Be5 Qg1 Nf6 Qc1 Rg8 h8Q Qd1+ Qc2 Rg6 Bhg7 Qb8 Qh6 Ng8 Qh7 Rf6 Qh6 Ne6 Qc1 Nf4 Ng5 Rb5 a7 Qc8 a8N Nh3 a6 Rf4 Ra1 b1N a7 Nd2 Rb1 Nf3 Rb2 Qb8 Rb4 Qd6 Nb2 Bd4 Rb3 Nfe5 Qe4+ Kc5 Nec7 Rb8 e8Q Rb7 Nb5 Rb8 Nd3+ Kc4 Qd8 Qd5 Bc5 Nce7 Ka5 Rb7 Nbc7 Rb6 Ne8 Rb8 Rb1 Rb2 Nd6+ Kb3 Qeg2 Qc4 Qe4 Ka2 Ba3 Rb8 Rb4 Rb7 Nb2 Qcd3 Rb3 Rc7 Rb8 Rb7 Bc5 Rb3 Bb4 Bc5 Ndf7 Bd6 Nb6 Bc7 Nd6 Q3e2 Qd5 Qed2 Qe4 Qd3
2K5/NBr2nr1/2QN3B/pP4p1/k4b1n/PN2n1B1/1QN1RrbB/R3n3 w - - 0 1 legal: proof: c4 c5 b4 f5 e4 h5 exf5 b5 cxb5 c4 g4 c3 gxh5 Qa5 b6 Qd5 b5 Qxd2+ Qxd2 Ba6 Qd1 Bc8 Ke2 g5 Kf3 d5 Kg4 Kd7 f4 e5 h4 a5 b7 d4 a3 e4 f6 e3 Kf5 d3 f7 c2 h6 e2 h5 e1N h7 d2 h6 Bb4 f8B Be7 Rh2 Bb4 Ne2 Nc6 Bg2 Ne5 Bd6 Ra6 Nd4 Nf7 Qf3 d1R Nd2 Nf6 N2b3 Rd8 h8N Bc5 h7 Rb6 Bc7 Re6 b8N+ Ke7 Qa8 Rf8 Bb7 Nd5 Re2 Ng2 Nbc6+ Kd7 Bb8 Re7 Na7 Bd6 Bb2 c1N Nc2 Rg1 Be5 Nde3+ Kf6 Rh1 f5 Nh4 Bh2 Nd3 Bg3 Ne1 Bc7 Nd8+ Nf7 Bf4 h8Q Rg8 Be5 Rg7 Nd6 Nf7 Bh2 Kc7 Bg3 Rd7 Ke6 Kb6 f6 Rf1 Bh2 Rf2 Bg3 Rd8+ Ke7 Bh3 Qc8 Nh6+ f7 Rd7+ Ke8 Re7+ Kd8 Bg2 f8B Ref7 Qc3 Re7 Qb2 Nf7+ Kc8 Rd7 Qh6 Re7 Nd2 Kc5 Qg6 Rh7 Bh6 Rg7 Nf5 Rd7 Nb3+ Kc4 Qc6+ Kd3 Nc5+ Kc4 Bh2 Bg3 Bd4 Bb8 Bde5 Bc7 Beg3 Bf4 Qc1 Re7 Nd6+ Kc3 Ne6+ Kb3 Qb2+ Ka4 Ned4 Rd7 Nb3 Rc7+
1B1bq1B1/2n5/Qn2b1N1/1Bp2Nk1/BPPR2n1/3Q3p/q1RN1q1b/N3K3 w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 f5 e4 e5 g4 Ra6 dxe5 fxe4 f4 Rc6 f5 Ra6 f6 Ra7 Ra3 g5 Ra2 h5 Ra1 Ra6 Ke2 Rc6 Ke1 Rc3 h3 Rf3 h4 Rf5 gxf5 g4 Ke2 Rh6 Kd2 Rg6 Ke1 Rg5 hxg5 Bc5 Nf3 Ba3 Ng1 Bf8 b4 Kf7 b6 c5 b7 d5 Bb5 g3 c4 d4 Rh2 h4 Na3 e3 Nc2 g2 Qd3 a4 Nf3 g1B Nd2 Nd7 b8N h3 Nc6 e2 Ne7 a3 e6+ Ke8 g6 a2 g7 Nh6 g8B Ng4 Rb1 a1Q Rf2 Qa4 Na1 Bh2 Rg2 Qda5 f7+ Kd8 f6 Nb6 Nf5 Be7 f8N Qa8 f7 Qa2 Qa3 d3 Qa6 Qc6 Bb2 Qe8 Rd1 Bf6 Be5 Bg5 Ng3 Ke7 Bb8 Kf6 e7 Be6 Ng6 Bh4 f8Q+ Kg5 Qb7 Ne3 Qa6 Ned5 Qf1 Nc7 Kf2 e1N Qe2 Nf3 Qf1 Ne5 Ke1 Ng4 Ba4 Qc8 e8B Qd8 Beb5 Qc8 Nb1 Qe8 Rc2 d2+ Ke2 Kh6 Nf5+ Kh5 Qf3 Bd8 Qd3 Kg5 Rf1 Nf6 Rf4 d1Q+ Kf2 Qc1 Nd2 Qcb2 Ke1 Ng4 Re4 Qf6 Rd4 Qff8 Ng7 Qf4 Nf5 Qf2+
kq4R1/7P/b1K1bNQ1/B1qp4/r2PR2Q/1Q4NQ/qb4pR/n2bB1R1 w - - 0 1 legal: proof: e4 f5 exf5 b5 a4 c6 axb5 Na6 b6 Nb8 b4 h5 g4 Ba6 b5 Bc8 b7 Qc7 b6 Qd8 Bb5 cxb5 f6 a5 Ra3 b4 Ra2 h4 Ra3 a4 Ra2 Ra5 Ra1 Rah5 gxh5 Rh6 Kf1 Rh7 Ke1 Rh8 h3 g5 Ba3 g4 Nc3 g3 Nb1 Nc6 Bb2 Ne5 Bc1 Ng4 hxg4 Rh6 Qf3 Rh7 Qd1 Rh8 Ke2 d5 Kd3 Kd7 Kd4 Kc6 b8Q b3 c4 b2 f4 a3 b7 h3 h6 h2 c5 a2 f7 e6 g5 Qb6 h7 Qa5 g6 Qa7 f5 Qb6 g7 Qb3 f6 Nh6 g8R Be7 f8Q Bd7 f7 Ng4 Qbd8 Ne3 b8B Kb7 c6+ Ka8 c7 Bf6+ Kc5 e5 c8Q e4 Qh6 Be6 f8R Nc2 Qg6 e3 Re8 e2 Nc3 e1Q Nge2 b1B Bc7+ Qb8 Kc6 Qg1 Ne4 Bb2 Nf6 Qe3 Rg1 h1B Ba5 Bf3 d4 g2 Rh1 Qa3 Ng3 Qe7 Qdd3 Bd1 Bcd2 Qa3 Be1 Qb4 Rg7 Rf8 Rh2 Rf7 Qda6+ Ra7 Rgg8 Qa3 Qb5 Qe7 Bc7 Ra4 Qb3 Qa3 Nd7 Qf8 Qh4 Qb4 Nf6 Qc4+ Kd6 Qc5+ Ke5 Bf7 Bc3 Be2 Qch3 Ba6 Bb4 Na3 Re7 Bc2 Rg1 a1Q Be1 Bd1 Ree8 Nc2 Re7 Qb5 Kd6 Qa2 Re4 Qc5+ Kd7 Na1 Bca5 Qe7+ Kc6 Be6 Qb4 Qef8 Qb3 Qc5+
5rqq/B1qK2n1/B6Q/1Q1P2B1/qQQR1pR1/7B/N1P2npk/1N3r1n w - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 d5 e3 b5 axb5 d3 Kd2 Kd7 Ke1 d2+ Ke2 Ke8 Kf3 e5 Ra4 d4 Kg2 d3 Ra6 e4 Ra1 Bc5 f3 Bd4 exd4 e3 Be2 Bf5 Bf1 Be4 fxe4 Qh4 Qg4 Qe7 Qd1 Qd8 Kf3 Kd7 Kf4 Ke6 h4 f5 b4 a5 b6 a4 e5 e2 h6 e1N b7 a3 b5 g6 h5 a2 b6 Ra6 h7 Qf6 h6 Ne7 Qe2 d1Q Bh3 d2 Qb5 Nbc6 b8Q Nb4 b7 Rf8 Ne2 Qh8 Nec3 Nbd3+ Kg5 Ra8 Rg1 Nf2 Rg4 Nh1 Kf4 Qg8 h8Q Nd3+ Kg5 Qf1 h7 d1Q Bf4 Ndf2 d5+ Kf7 Qc7 Qc4 b8B Qdd4 Ba7 Qc6 Qd6 Qa4 Qdb4 Qc7 Bfe3 Rad8 Rd4 Rd6 Q5c4 Rf6 e6+ Ke8 Qg7 R6f7 h8Q Rf6 Kh4 g5+ Kh5 g4 Kg5 g3 Qh6 g2 Bf4 Ng6 e7 Kd7 Bd2 Nf4 e8B+ Kc8 Be3 Nh5 Bb5 R6f7 Qgg6 Ng7 Ba6+ Kd7 Qgb6 Rf6 Qb4b5+ Ke7 Q6a5 Kd6 Qab4+ Ke5 Bd2 R6f7 Kg6 Rd7 Bg5 Re7 Nd2 Ref7 Rd1 a1Q Ndb1 Qb2 Rg4 Qba1 Na2 Qd4 Rg3 Ke4 Rg4+ Kf3 Rd2 Qc3 Rdd4 Qb2 Rh4 Kg3 Rhf4 Kh2 Rg4 f4 Bb8 Re7 Ba7 Rb8 Kf6 Re1 Rg3 Rf1 Rg4 Qc6+ Ke7 Rf8 Rd1 Qb6 Kd7 Q2f6 Rd4 Qba5 Qh4 Qh6 Qh5 Qhh8 Qh6 Qc7+
1r4R1/1r1QQB1R/1P1N1p1n/p1k1b1Pp/1r1N3q/3Q1R1B/2b1R1Q1/2K4n w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 h4 g5 hxg5 c5 b4 Ke7 b6 Nh6 b5 Ke8 Ba3 Ng8 Bb4 cxb4 d4 Kd7 Kd2 a5 g4 h6 e4 f6 b7 b3 e6+ Kd6 e5+ Kc7 e7 Kb6 e8R b2 d6 Bg7 g6 Bd7 e6 Bc6 d7 Be4 e7 Bc2 g5 Ra6 d5 Nc6 b8Q+ Kc5 b6 Ra8 d6 Nd4 Na3 b1R Qb7 Ba4 Nc4 Nc2 Ne2 Ra7 Bh3 Qc8 d8Q Na3 d7 Bb3 Qg2 Rb7 Nd6 Nb5 Nd4 Nc3 Ra3 Bf8 g7 Bc2 Qe1 Rb5 Kc1 Ne4 Rf3 Rb4 Qef1 Qb8 Qd3 Ng3 Qc8+ Qc7 d8Q Qc6 Qcd7 Qe4 Re1 h5 Re2 Nh6 g8R Qg4 Rg7 Nh1 Rh7 Qh4 Q8c7+ Kd5 Rd8 Rg8 e8B Be7 Ra8 Rf8 Qcd8 Kc5 Bf7 Rh8 Qf8 Bd8 Qg7 Bc7 Rg8 Bb8 Nc4 Bh2 Nd6 Be5 Qf8 Ng3 Qfe7 Nh1 Rg6 Ra8 Rg8 Rab8
BRbb1bq1/2p4B/2rpQ2P/1R1QnQPN/5r2/1p2Bn2/N7/kBQ2K2 w - - 0 1 legal: proof: c4 a5 f4 g5 d4 b5 g4 e5 dxe5 h5 gxh5 g4 cxb5 Qe7 b4 Qg5 fxg5 axb4 h4 Ke7 a4 Ke6 e4 f5 h6 f4 h5 d6 a5 b3 a6 f3 h7 g3 b6 g2 a7 Nf6 b7 Ne8 Nc3 Bg7 Nge2 g1B Qd5+ Ke7 e6 Nd7 b8Q Be5 Ng3 Nc5 Ra5 Rg8 h8Q Bg7 e5 Nd7 Rb5 Rf8 Na2 Rf4 Be3 Bf8 Bd3 f2+ Kf1 Ng7 Bh7 Nf5 h6 Bh2 Nh5 Nd4 Qb6 Bg1 Qa5 Nf3 Rh4 Rb8 a8B Rb6 Qad2 Rc6 Qg8 Bh2 Qg6 Bg1 Qf5 Bh2 Kg2 Bg1 Qc1 f1Q+ Kg3 Qc4 Kg2 Nc5 Rb8 Nd3 Kf1 Bf2 Bd2 Bd4 Be3 Ke8 e7 Bc3 Qfe4 Kd7 e8B+ Ke7 e6 Bf6 Bd7 Nde5+ Qed3 Qe4 Be8 Qg6 Qf5 Qg7 Beg6 Qg8 Qfb1 Kd8 e7+ Kd7 Qb5 Ke6 e8Q+ B6e7 Qb7 Kd5 Qf5 Ra4 Rb4 Bd8 Rb6 Rb4 Qd2+ Rd4 Rb5+ Kc4 Qe1 Re4 Qee6+ Kd3 Qa1 Kc2 Qc3+ Kb1 Qd2 Ra6 Qbd5 Rc6 Qe1+ Kb2 Qed1 Rf4 Qe1 Ka3 Qc1+ Ka4 Qff7 Qh8 Qc3 Ka3 Bb1 Qg8 Qe1 Kb2 Qff5 Ka1 Qed1 Nc4 Qc1 Nce5
1n2RBn1/1pP5/1p4kN/B3Q2q/1Npbr3/5K2/RbPqBQ2/rNN2B2 w - - 0 1 legal: proof: g4 e5 f4 f5 fxe5 c5 e4 h5 exf5 d6 gxh5 Qf6 b4 Qd8 d4 Qb6 d5 Qd8 b5 Bd7 b6 Bc6 dxc6 axb6 Ke2 Kf7 h4 g5 a4 c4 h6 g4 a5 g3 f6 d5 e6+ Kg6 a6 d4 e7 d3+ Kf3 g2 e8B+ Kf5 h5 d2 a7 Qc8 h7 Nh6 f7 Qe6 Ra2 Kg5 Qe2 Qd7 Qf2 Qe6 Ne2 Be7 f8B Ng8 h6 g1B Bh5 Kf5 Rh3 d1Q Bd2 Qc1 Ba5 Qg5 Nc1 Qef6 Rh4 Qa1 Re4 Bf6 Re8 Ne7 Bg4+ Ke5 Bh5 Rg8 h8N Kf5 h7 Qd4 Nf7 Qd6 h8Q Qdd2 Bg4+ Kg6 Nh6 Bb2 Qe5 Nd5 Kg3 Qh5 Bge2 Qh4+ Kf3 Nf6 Qfh2 Bgd4 Qf2 Nbd7 Re6 Re8 a8N Nb8 Nc7 Re7 Na6 Qh5+ Ng4 Re8 c7 Rg7 Re7 Ng8 Nb4 Rh7 Rd7 Re6 Rd8 Rg7 Re8 Rh7 Qc5 Re4 Qe5 Rg7 Kg2 Rf7 Nh6 Rff4 Kg3 Rg4+ Kf3 Rg1+ Ng4 Ba1 Nc3 Qh7 Bg2 Qh5 Nb3 Qh2 Nh6 Rb1 Nc1 Bb2 Bgf1 Ra1 Nb1 Qh5+
1NBN1K2/1b2Q2P/5n1r/2BpQ1Nq/N2p1r1p/1rP4R/5k1B/R1qB1n2 w - - 0 1 legal: proof: h4 c5 e4 f5 exf5 b5 g4 h5 d4 g5 hxg5 cxd4 a4 Rh7 axb5 Rf7 g6 Bh6 g5 Rh7 gxh6 Rh8 Kd2 a5 Kd3 e5 Kc4 Ke7 Kc5 Kf6 Kd6 e4 b4 e3 f4 h4 b6 a4 b7 e2 b5 e1Q g7 a3 h7 a2 b6 Ra5 Ba3 Ne7 g8B Ra6 Bc5 Nec6 Qe2 Ra3 Nc3 Ra4 Bh3 Ra7 Bb3 Ra5 Nf3 Qb1 Ng5 Nb4 Na4 Ra7 c3 Rf8 Bd1 Qc1 Bg4 Ra8 Rh3 Ra6 Qe8 Nc2 Qe4 Nc6 b8B Qe8 b7 Qh5 Bc7 Ne3 b8N Bb7 Qe8 Kg7 f6+ Kh6 f5 Nf1 f7 Ne5+ Ke7 d5 f6 Nd7 Bh2 Rb6 Be6 Rb3 Bf5 Ne5 Bc8 Nd7 Qd8 Kg6 Qc7 Kf5 Qd6 Ng3 Qe6+ Kf4 Qd6+ Ke3 Qc7 Rh8 f8N Kf2 f7 Nf6 Nfe6 Nf1 f8Q Rg8 Qd6 Rg6 Nd8 Rh6 Qh8 Qb1 Kf8 Qc1 Rb1 a1R Qe7 Ra2 Ra1 Re2 Qhg7 Re4 Qe5 Rg4 Qge7 Rf4
5B1N/p4qQK/2P5/Qp2Rb1k/2r4P/1qBB1pr1/2BNn2R/br1QQ3 w - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 g4 Nc6 gxh5 Nb8 d4 cxd4 c4 b5 b4 Ke7 c5 Qa5 c6 Qb6 a5 Na6 axb6 Nc5 bxc5 Ke8 Kd2 d5 Kd3 f5 h4 Kf7 e4 g5 c7 g4 c6 g3 b7 g2 b8B f4 e6+ Kf6 e7 f3 e8Q Bd7 c8B Ba3 e5+ Kf5 e6 Kg4 h6 Bd6 h7 Nh6 e7 Nf7 Bd2 Kh5 Ne2 g1R Rh2 Rf8 Bc3 Be5 Qd8 Nh6 h8Q Rf4 Qg7 Nf5 Bd6 Ng3 Qa5 Rh1 Nd2 Bf5+ Ne4 Rg4 Bd7 Rg8 e8Q+ Rg6 Qe6 Rg4 Bf8 Bf6 Ra4 Rg1 Rc4 Rh1 Rc5 Rf4 Ng1 Ne2 Nh3 Be5 Ng5 Bf6 Kd2 d3 Ke3 d2 Nf7 d4+ Kd3 Rg1 Nh8 Rg3 Re5 Rfg4 Qe1 d1Q+ Qd2 Qb3 Qd1 Rf4 Qe8+ Qf7 Be6 Rfg4 Bb3 Rf4 Bc2 Rfg4 Kd2 d3 Ke3 Rf4 Nd2 Rc4 Qe7 Nd4 Kf4 Rg1 Ne4 d2 Bfd3 Re1 Qeb4 Rh1 Qbb1 Rg1 Qe1 d1Q Qba1 Qb1 Nd2 Qb3 Qad1 Be7 Qf6 R8g3 Qg7 Bd8 Re7 Ne2+ Ke5 Qe8 Kf6 Bb6 Re5 Bd4 Bcb4 Ba1 Bc3 Qd8+ Kf7 Qd7+ Kg8 Rh1 Ng6 Qe7 Kh7 Qf7 Qb1 Re4 Qf2 Rd1 Qe1 Rc4 Qc1 Rg5 Qb1 Be6 Nh8 Bg4 Qb2 Rb1 Qbc1 Bc8 Qcd1 Bd7 Re7 Rg3 Re5+ Bf5+
B2kN2B/1Qb1p2n/1P2rn2/pR2NN1R/r3N1nB/1P5Q/7p/1q2nBK1 w - - 0 1 illegal: No possible last move, all moves rejected
N1Q5/1q3b2/2B1qQrR/P2Q1Q1N/p5qN/1p2k3/2pr1NPb/2KbBR2 w - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 hxg5 d5 c4 Bg4 cxd5 Bh3 a5 Bc8 b4 Nd7 Rh5 b5 Rh1 Nb6 axb6 a5 Ba3 a4 Bc1 Ne7 Nc3 Nc6 Nb1 Na5 bxa5 Ba3 Rh6 Be7 Rh1 Bf8 e4 Kd7 d4 Kd6 Kd2 c5 g6 f5 g7 h5 g8N c4 b7 h4 b8Q+ Qc7 Nf6 f3 Qc2 f4 Nh3 f2 Nh5 Be6 Qc8 b4 Bb2 c3+ Kc1 f3 Bb5 f1B Bc6 b3 Nd2 f2 Nf3 Qb7 e5+ Ke7 Rh2 Bf7 e6 Kd6 e7 Ra6 Q2f5 c2 Bc3 Be2 Be1 f1Q Nf2 h3 Nh4 Bd1 Rb1 Qc4 e8N+ Ke7 Rh1 h2 Nc7 Kd6 Na8 Bg7 Rf1 h1Q Ra1 Be5 Rb1 Rd8 Ra1 Ke7 d6+ Kf8 d7 Ke7 d5 Kd6 Rb1 Kc5 d6 Kd4 Ra1 Qe6 Rb1 Re8 d8Q Bh2 d7 Ke3 Qdf6 Rg8 d8Q Rg6 Qdd5 Rb6 Bd7 Rd6 Bc6 Rd8 Qc5+ Rd4 Qcd5 Rd2 Kb2 Bg8 Nf4 Bg3 Nf3 Qbe7 Rg1 Rd3 Bb4 Qh4 Rh1 Qg4 Rh6 Bf7 Nh4 Bh2 Nh5 Bf3 Rf1 Qb7 Be1 Rd2 Kc1 Bd1
3Rn1q1/2p1R3/2k5/1R1n1pBB/r2B1K1p/3N2Pq/2qQ2Pn/r1QN2BR w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 g5 a4 gxf4 axb5 Bg4 d4 Nh6 e4 Be2 d6 Ng8 d5 Bg7 d7+ Kf8 d6 Bf6 Kf2 Bc4 Ke1 Bd5 exd5 Bh4+ Ke2 Bg3 hxg3 Kg7 Ke1 Kf8 Kd2 e5 b4 h5 b6 f5 b5 a5 b7 f3 Ke3 a4 b6 e4 Be2 f2 Nh3 f1Q Nf2 a3 Nc3 a2 Kf4 e3 Bb2 h4 Bh5 e2 Qc1 e1N Nd1 Nf3 Nd3 Qf2 Bd4 Na6 b8B Qc2 b7 Nh2 Bba7 Nf6 b8R Ne8 Rb5 Nb4 Rb1 Qc8 d8R a1Q d7 Ke7 d6+ Ke6 Bac5 Kd5 Bg1 Rf8 Bcd4+ Kc6 Re5 Ra4 Re7 Na2 Rb3 Nc3 Rb5 Qa8 Rc8 Rf6 d8B Re6 d7 Re1 Rg7 Qab1 Bg5 Qb4 d8Q Rf1+ Ke5 Nd5 Re7 Qbc4 Bb2 Qg4 Bbd4 Qh3 Rcb8 Nb4 Rc8 Re1+ Kf4 Qb8 Bdf2 Rf1 Qd4 Re1 Rd8 Qc8 Qdb2 Qe6 Bd4 Qg8 N1f2 Rd1 Qd2 Rb1 Qbc1 Rba1 Nd1 Nd5+
kN1q2rQ/p2R4/3B1P1r/2q1R1pN/2nR4/QNq1p2P/K2RB3/1n1n1N2 w - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Nf6 h4 Ng8 h5 g6 h6 Bg7 hxg7 h5 Ra4 h4 Ra5 h3 Ra6 h2 Ra1 Bh3 gxh3 Qd7 Bd3 Qc8 Bf1 Qd8 f4 Kd7 d4 Kc8 Kd2 Kb7 Kc3 e5 Kb3 c5 f5 g5 b6 e3 d6 e4 d7 e2 d5 e1Q d6 e3 Qd3 Qe7 d8R Nc6 d7 Qh4 Nd2 Rh5 Ngf3 Ne5 Nd4 Nc6 Ra5 c4+ Ka2 c3 b4 c2 b5 Qc5 Be2 Qg3 Ba3 c1Q Rd1 h1N Nf1 Rc8 Rd2 Nf6 g8N Nd5 Nf6 Rh6 Nh5 Ne5 f6 Nc4 Qc3 Kb8 b7 Qc6 Bf8 Qc5 Qa3 Qf4 Nb3 Qcd4 Bc5 Qd6 Bb4 Kc7 b6+ Kc6 b8Q Nf2 b7 Nd1 Rf8 Qb6 Rf7 Rf8 d8R Qc2+ Ka1 N5c3 Re5 Nb1 Rfe7 Qc1 Ka2 Qc3 Bc5 Qdc7 R8d4 Qba5 Bd6 Qc5 Qd8 Rfh8 b8N+ Kb7 Rd7 Ka8 Qg8 Qd8 Qg7 Re8 Qh8 Rg8
3N3B/Bp3BR1/NnPbQn1N/1b1N1p2/1B1KQ3/1b2b1P1/p1R5/1kn1q3 w - - 0 1 illegal: No proof kernel
1Rqn3B/K1QBPp1k/1Q3Bn1/1BR5/r4n2/7p/pP1NRn2/1N1qr2R w - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 h5 Ng1 g6 h3 Bh6 g5 Bg4 gxh6 g5 Qa4 Be6 Qd1 g4 Nf3 g3 Ng1 Bg4 hxg4 Qf6 Ra5 Qh4 Ra1 Qd8 d4 Kf8 Kd2 c5 Kd3 a5 Kc4 f3 e4 a4 h7 Kg7 g5 f2 b6 a3 Kb5 g2 d6 h4 g6 c4 e5 h3 d7 c3 b7 a2 d5 c2 e6 Ra3 e7 Rc3 d6 Na6 b8R Qf8 Kb6 Nf6 d8Q Ng8 d7 Nc5 Bb5 f1Q Nf3 g1N Bg5 c1N Nfd2 Nb7 Ka7 Nf6 Qb6 Nd5 d8R Nd3 Rdc8 Nd8 Qc2 Nf3 Rc5 Nf2 Bf6+ Kh6 g7 Ne5 Bd7 Re3 Bb5 Rg8 h8B Qd1 Re1 Ng6 Re2 Qe8 Qc1 Rf8 g8B Ndf4 Bh7 Qc6 Qc3 Qc8 Qe5 Re4 Qec7 Rg8 Bd7 Ra4+ Ra5 Ne5 Bd3 Rg1 Ba6 Re1 Rc5 Re4 Bc4 Neg6 Bcb5 Ra4+ Qa6 Rg1 Na3 Qf1 Rac1 Kh7 Nab1 Qd1 Qaa5 Qc2 Rce1 Qd1 Qa6 Rg4 Rh1 Rg1 Qaa5 Re1 Qa6 Rd4 Qab6 Ra4+
3N4/5QR1/1qnq2BB/2p3Q1/1k1PpQ2/3qRrR1/1pPNQn2/q2qK1R1 w - - 0 1 illegal: No possible last move, all moves rejected
QB2r1Rn/B3k1P1/p1Rp3b/Q3pK2/1n1BRBNn/3R1Pq1/5p2/1rN5 w - - 0 1 legal: proof: d4 b5 g4 g5 a4 f5 axb5 c5 dxc5 h5 f4 Bb7 Kd2 Be4 Bh3 Bf3 fxg5 f4 g6 Bc6 g5 f3 Bf5 f2 Bg4 Bf3 exf3 hxg4 Ke3 d6 Kf4 e6 c4 g3 b4 a6 h4 g2 g7 Nh6 g8R Qe7 c6 Qb7 c7 Qc8 c5 Qb7 c8R+ Kf7 b6 Qc7 h5 Be7 c6 Ra7 g6+ Kf6 b7 Bd8 b5 Nf7 h6 Ra8 h7 Ke7 b6 Kf6 Nd2 Nh6 Ne2 g1N Nf1 Ra7 Rh4 Ke7 Qe1 Qd7 c7 Kf6 Nh2 Qf7 Qa5 Nc6 b8B Qe7 b7 Nf7 Ra3 Nb4 Rd3 Nh3+ Kg4 Qf8 Bf4 Qg7 Nc1 Ra8 Ba7 Ke7 b8B Qe5 Rg7 Re8 Rg8 Qg7 h8B Qe5 Bfe3 Nf4 Bg7 Ng2 Bf4 Nh8 Bf6+ Kd7 Bg7 Bg5 Bf6 Qa1 g7 Bh6 Bfd4 e5 Kf5 Ke7 Ng4 Qb1 Rh1 Qc2 Re1 Qd1 Re4 Qg1 Rd8 Qh2 c8Q Qg3 Qc6 Ng6 Rc8 Nh8 Bc7 Rb8 Qa8 Rb7 Bcb8 Rc7 Nb3 Rc1 Rc6 Rb1 Nc1 Nh4#
b5Qn/q2R4/2pPB3/1qp2N2/PN1nR3/rb3p2/3RRp1Q/BB1KBk2 w - - 0 1 illegal: Other
4B1R1/N2n1N2/7q/QpbQNPB1/b3n3/K2P4/ppBB1pNp/R4rk1 w - - 0 1 illegal: No proof kernel
1r1k1NKR/q3R3/1b1B1n2/bR2N3/PQ1Bn1RB/1Q1rP3/B1b2r1q/1n2q3 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 c5 Ke3 f5 Kf4 b5 h4 g6 d4 b3 a4 b2 e6 b4 Ke5 g5 e3 g4 d6 b3 h6 g3 d5 f4 d7+ Ke7 h7 c4 h5 c3 h6 g2 Ne2 g1B Rh4 f3 Nd4 f2 Nd2 b1R Bc4 f1Q N2f3 b2 Qb3 c2 Rg4 Qa5 d8B+ Ke8 e7 Qe2 Ne6 Qae1 d6 Na6 Ra3 Kd7 e8R Nc5 Bh4 Ne4 Bd5 Ba6 Re7+ Kc8 Qb4 Ngf6 Ba2 Bd3 Rb3 Qh2+ Kf5 Ra6 Kg6 Bf2 Kf7 Rg8 Bd2 c1Q h8B Qc7 h7 Bc2 Ne5 Qa7 Bg7 Rc6 h8R Rd1 Bc3 b1N Bd4 Ra6 Bh6 Rb6 Bf4 Rb8 Bfg3 Bg7 Nf8 Rd3 d7+ Kd8 Rb2 Nh7 Qb3 Bf6 Qb4 Rg5 Rb3 Rf5 Kg8 Rf3 Qc5 Rf4 Rb5 Rf3 Bf4 Bg3 Qb4 Rf2 Neg6 Be5 Qb3 Bc7 Bd6 Bb6 Ne5 Nhf6+ Kf7 Qe2 Ba1 Rd4 Bc3 Rf4 Bc5 Kc7 B3b4 Be1 Bc3 Nh5+ Kg8 Rf2 Ba1 Bea5 Bb2 Kb7 d8Q+ Rd7 Bb4 Qe1 B2c3 Rc7 Qd6 Kc8 Bd4 Rc3 Qc5+ Kd8 Qcc4 Rd3 Bd6 Neg3 Qcc3 Ne4 Qcb4 Nhf6+
B1k5/1nq2b1b/q1n3NN/1rR3PK/1bR1Q3/PqrQn3/5Q2/B1QN2Nr w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 e5 Kg4 b5 d4 c5 f4 h5+ Kh4 b3 g4 b2 d6 e4 d5 c4 a3 c3 f6 b4 f5 e3 g6 c2 g5 e2 g7 e1N f7 b3 f6 Qc7 Nc3 b1B Bb2 c1Q Bg2 Ne7 g8N Nbc6 Nh6 Nc2 Rh2 Qd2 Qc1 Ne3 Nd1 Qd3 Be5 Kd8 d7 b2 Be4 Rb8 Rc2 Ba2 Rc5 b1Q Bc3 Qa6 Rc4 Bg7 f8N Rb5 f7 Na5 Ng6 Qb3 Bf6 Re8 f8Q Nb7 Bc3 Bb1 Qf2 Nc6 Ra2 Rh8 Rc2 Bf8 Ba1 Bb4 Rc5 Rf8 Bh1 Rf3 R2c4 Ng4 Bg2 Rc3 Be4 Ne3 Bf3 Qe5 Bh1 Kc7 d8Q+ Kb8 Bg2 Qc7 Qe7 Be6 d6 Bf7 d7 Bc2 Qe4 Bd3 Kh3 h4 d8Q+ Qc8+ Qd7 Qc7 Qdd5 Kc8 Bf3 Nc2 Kg4 h3 Kh5 h2 Qee1 Bf5 Qee4 Ne3 Qdd3 B7e6 Nh4 Bh7 Ng6 Bf7 Qdd4 Nb8 Qe8+ Nd8 Ba8 Nc6 Qee4 Nb7 Qdd3 h1R+
1bN2kNq/BrQn1N1b/1P2q1bR/6Qn/2P1BRr1/q2Q4/2K3n1/1Nr1Q3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 b4 g5 h4 e5 f4 d5 c4 g4 h6 e4 b6 g3 h5 e3+ Kc2 e2 f6 e1Q h7 g2 h6 a4 f7+ Ke7 b7 a3 f5 a2 b5 Qg3 Qe1+ Qe5 Nf3 g1R Nh4 Ra7 Be3 Nf6 Bg2 Qe6 Be4 Nbd7 b8Q Rg4 Qc7 Nh5 Rf1 Rhg8 h8Q Rb7 h7 R8g7 Qg8 d3+ Kb2 d2 h8N d1N+ Kc2 d4 Rf4 R7g6 Qg7 Rf6 Qg5 Bg7 f8N d3+ Kb3 d2 N4g6+ Ke8 Ba7 Ne3 b6 Ng2 Nf7 d1B+ Kb2 Bh8 Nh7 Bc2 Ne7 Rh6+ Kc1 Be5 Nf6+ Kf8 Nfg8 Bd3 f6 Rg6 Qc5 Bb8 Qc7 Bc2 Bd5 Bf5 Be4 Rh6 Kc2 Bg6 Nc3 Rh7 Rd1 a1Q Rd6 Qa3 Nb1 Ne5 Rc6 Bd7 Rd6 Be8 Nc8 Nd7 Nh8 Rh6 f7 Bh7 Rc6 Rf6 Rd6 Rf5 Rc6 Rd5 Rd6 Qe5 Rh6 Rd1 Rf5 Qdf6 Qgd2 Qfe7 Qd3 Kg7 Rf4 Q7d6 Ng6 Qed4 Ne5 Q6d5 Rf5 Qe6 f8Q+ Kh8 Qe7 Bg6 Nf7+ Kg7 Q7h4 Kf8 Qg5 Qh8 Rf4 Rc1+
BQ5K/1RP1Q1N1/4bQ1P/2Qr4/2nqkb1r/Nnq2Rq1/2NBb2r/1nN5 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 d5 Kg6 a5 c4 d3 f4+ Ke4 h4 e5 b4 d2 h6 d4 f6 d3 c5 a4 b6 a3 b7 a2 f7 Qb6+ c6 Bh3 b5 Qc5 h5 Ra7 c7 Qc3 f5 Ke3 h7 e4 b6 Nc6 b8Q Na5 f6 Bd6 f8N Bf4 b7 Nc4 f7 Nf6 Ne6 Ra4 f8Q Nd5 Bg2 Bf5+ Kf7 g5 Ng7 g4 Qc2 g3 Qe7 Be6+ Kg6 Qd4 Na3 Nc3 Rh3 Nb1 Ne2 Rb4 Bf3 g2 Rg3 g1Q h6 Rd8 h8Q Rd5 Kh7 Rb2 Rh3 Qg3 Bg2 Rh5 Qc3 Rh4 Qhf8 Rc2 Kh8 Rb2 Qff6 Rc2 Bb2 d1B Nc1 Be2 Qcb4 d2 Qbc5 d1R Bc3 Rcd2 Bb4 Rh1 Bf3 Rh2 Ba5 Nc3 Rb1 a1N Rb5 Nb1 Bb4 Rd3 Bd2+ Kf2 Rb4 e3 Bc6 Nb3 Bd5 Qg5 Rf3+ Kg2 Be4 Qg3 Qa8 Qd5 b8N Bf1 Na6 Qe5 Bc6 Rd5 Qb8 Qd4 Ba8 Bd3 Rf1 e2 Be3 e1Q Rb7 Be2 Nb4 Qec3 Bd2 Qg6 Nbc2 Qgg3 Rg1+ Kf3 Rf1+ Ke4 Rf2 Qg6 Rf3 Qg3
nqNk2rN/1BRP2n1/2P3rr/1B1R3R/1n2Q3/n3R2b/1K3BQ1/1nbb3B w - - 0 1 illegal: No proof kernel
Qn2Kn1N/Pqr4Q/B2Q2rr/PNR3b1/Rb6/1rB3N1/2b1Nk2/3n2rQ w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 b5 g4 h5 f4 e6 a4 h3 f6 b4 a6 h2 f5 b3 a7 h4 g5 b2 a5 c6 g6 h3 f7 Nf6 g7 Ba6 g8Q Be2 Qh7 Qc8 Nc3 b1R Ra4 Rg8 Bb2 Nfd7 f6 Bd3 Nce2 Qb7 Ng3 Rg6 Bc3 Bc2 Ba6 Rb3 N1e2 e5+ Kc4 e4 d4 Be7 f8N c5 f7 e3 Ne6 Nf8 Nc7 Bg5 Rg1 h1R Nb5+ Ke7 d6+ Ke6 d7 h2 Re1 Rg1 d8Q h1N Qa1 Nf2 Rc1 Nd1 Qc7 Nfd7 f8N+ Kf6 Qc8 Rh6 Ng6 Nf8 Nh8 Rg6 Nf4 e2 Qcd7 e1B Nfe2 Bgd2 d5+ Kg5 Qe8 Kg4 d6 Kf3 d7 Bg5 d8Q Kf2 Qd6 Bed2 Qec6 Be1 Kd5 c4 Bf6 Bb4 Bc3 Nbd7 Qb1 Rc8 Qa1 Nb8 Ke5 Rc7 Qch1 Qb6 Qa8 Qb7 Qb1 Bf5 Qe4 Rh1 Rc2 Rhh6 Qh1 Bd3 Rd2 Be4 Rd5 Bc2 Rc5 Bb1 Bb2 c3 Ba1 c2 Bc3 Rg8 Kf5 c1R+ Ke5 Ng6+ Ke6 Bc2 Qhe7 Nf8+ Kf7 Rgg6 Ke8 Ne3 Qg7 Rg1 Qh7 Nd1
r1n1Q2r/1Q4q1/N5bR/Bn5Q/1QPR3b/N3Nrrq/3K2Pr/1Nb2Bk1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 Kf7 b4 h5 c4 e5 f6 Kg6 f7 Kf5 b6 Ke4 f5 d5 f6 a5 g6 d3 b7 d4 g7 d2+ Ke2 a4 b5 d3+ Kf2 a3 b6 h4 Ne2 h3 Ng1 a2 Nf3 h2 Qa4 d1R Na3 d2 Ke2 Na6 b8N Bf5 b7 Qd7 Rg1 h1R Qb3 Ne7 g8Q Bg7 f8N Nc7 f7 R1h2 Qh7 Nb5 Rh1 Bg6 Ne6 Nc8 Nf4 Qh3 f8Q Bf6 Rb1 a1Q Na6 Qc3 b8Q Re1+ Kf2 d1R Bd2 Re3 Qfb4 Bg7 Be1 Rdd3 Nd2+ Kd4 Qh4 e4 Nd5 Rg3 Ke2 Rdf3 Qh5 e3 Rd1 Qa1 Ndb1+ Ke4 Q3a4 Bb2 Bd2 Kd4 Ke1 e2 Ne3 Kd3 Bc3+ Ke4 Kd2 e1B+ Ke2 Bc1 Bd2 Qg7 Qb7+ Kf4 Bc3 Bb2 Rd8 Rg4 Rd3 Bh4 Kd2 Kg3 Rd7 Kf2 Rd4 Nba7 Qe8 Nb5 Qbc5 Rg5 Ba5 Rgg3 Qb4 Qhd7 Nf5 Bd8 Qg8 Rhh3 Qg4 Bf6 Rh2 Kg1 Ne3 R3h7 Rh5 Qe6 Qe8 Be7 Rc5 Rh2 Rh5 Bh4 Rh6 Qf5 Qg5 Qh3 Qh5 Bc1+
Nkn5/nBr3Q1/8/bbBKRP1P/2q1R1Q1/1N1R2b1/3b3R/Nbqr1rN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 Kd3 a5 Kc4 e5 b4 g4 f4 a4 h4 d3 f6 a3 f7+ Ke7 f5 Kd6 b6 e4 h6 g3 b5 e3 b7 Kc7 h7 d6 h5 e2 Kd5 e1B c4 g2 c5 a2 c6 d2 Rh2 Bg3 Ba3 Bh6 f8R Qh4 Rd8 Bd7 Qg4 d1B Bc5 Bd2 Na3 Bc2 Re1 a1B Re5 Bb1 Nc2 Bac3 Na1 Ba5 Be2 Ra7 Bf3 Ra6 Rde8 Ra7 Re4 Ra8 R8e5 Ne7+ Kd4 Rf8 h8Q Rf7 Qhg7 Nc8 Kc4 d5+ Kd4 Na6 b8R Nb4 Rb6 Ra7 Ra6 Rb7 b6+ Kb8 Ra7 Rc7 b7 Re7 Ra6 Bb6 Ra3 Ba5 Rd3 Be8 Nh3 g1R Bg2 Rf1 Ng1 Red7 Bd6 Ka7 b8N Ka8 Kc5 d4 Na6 Rd8 Kc4 Rdd7 Nc5 Kb8 Ncb3 Rd8 Rc3 d3 Bh1 Bc1 Be7 d2 Bc5 d1Q Rd3 Bd2 Bg2 Bd7 Bh1 Qc1+ Kd4 Nc2+ Kd5 Na3 Bf3 Nb5 Bg2 Nba7 Bf3 Rb7 c7+ Ka8 Bh1 Bb5+ Ke6 Qh3 Red4 Qh4 Qe4 Rd7 Re3 Nd6 c8N Qf4 Nb6+ Kb8 Na8 Bde1 Qf3 Rd8 Qfg4 Rc7 Bb7 Ndc8 Rb4 Rd2 Rd3 Rd1 Ra4 Qb4 Kd5 Qbc3 Rb4 Bd2 Rbe4 Qc4+
6B1/N2K4/Q3B2n/3QP3/nQNr1qnB/RqPQ1n1n/2qBr2R/1b3kb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 b4 d5+ e6 a5 e4+ d3 h4 g5 e5 d4 c3 a4 b6 g4 b5 a3 b7 g3 h6 a2 h7 g2 h5 Bc5 h6 Nd7 b8Q Qh4 e7 Ra4 e8B Ndf6+ Bd7 Ng4 Nf3 g1N b6 Nh3 Bg2 d2 b7 Kd3 Qc2+ Ke2 Qb3 d1N Qd5 d3 Nfd2 Nb2 Na3 Rd4 Be6 Na4 Ndc4 d2 Qbd6 d1Q b8Q Qb3 Rh2 f6 Bf3+ Kf1 Nb5 Qf2 Qa6 Qfc2+ Be4 Bb7 Na7 Bc6 Rb1 a1Q Qb4 Qab2 Bg5+ Qbc1 Ra1 Bb5 Ra3 Qf4+ Kg6 f5 Kf7 Bd7 Bh1 Bc8 Ke8 Bd7+ Kd8 Be8 Bf3 Bg6 Bh1 Qfe4 Bc1 f4 Bd2 f3 Kd7 f2 Bf3 Qf4 Be4 Ne7 Bg8 Bb6 Bf5 Bc5 Bfe6 Nf5 Bgf7 Ra8 h8Q Bb6 h7 Nfh6 Bg8 Rd8+ Ke7 Re4 Qf6 Re2 h8B Rd6 Qd3 Rd4 Qf7 Rd8 Qbd6 Qd1 Bc8 Kg1 Qf3 Bb1 Qfd3 Qdc2 Bf6 Be3 Qb4 Rd4 Bh4 f1N Qd5 Bf2 Be3 Nd2 Bce6 Kf1 Kd7 Nf3 Bd2 Bg1
QRn2r1n/1K2b2q/5rB1/P1n1P1Qn/2q4R/k1Nb4/1R2R1n1/N1r1NNB1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 g5 Ke4 c5 d4 b5 a4 f6 h4 b3 h6 b4 h5 b2 h7 g4 e6+ Kd6 h6 g3 e7 b3 e8R c4 a5 c3 Ra2 c2 Nf3 g2 Be3 c1R Nfd2 g1N Rh4 Nc6 Nc3 b1N Rb2 Nf3 Bg1 Be7 e3 Be6 Bd3 Qc7 Nf1 Nce5 Qd2 Qc4 Rb8 Kd7 d6 Kc6 d7 Nf7 d8R Ne1 Re8 Ra6 Qg2 Kd6 Qg5 Ng2 Bc2 Bg4 Bd3 Be2 Bc2 Qc6+ d5 Kc5 Bd3 Qb5 d6+ Kb4 d7 Ka3 d8N f5+ Kd4 f4 e4 f3 Ne6 f2 Nc5 Qb4+ Kd5 Nd2 Bb1 Rf6 Bc2 Rf5+ Kc6 Qc4 Kb7 Rf6 Bb1 Bd3 Bc2 Bf8 Re6 Ne7 Re5 Rg8 h8Q Nc8 h7 Bd6 Re8 Rf8 Qhg8 Rd1 h8N Rc1 Ng6 Nh8 Ne5 Be7 Qd5 Re6 Nf3 Ref6 e5 Ne4 Ne1 R6f7 Bb1 Rf6 Re2 b2 Bc2 b1Q+ Nb3 Qb2 Bb1 Qc2 Na1 Nc5+ Ka8 Q2a4 Rbb2 Qd7 Kb8 Qf5 Qa8 Qh7 Kc7 Nb6 Rb8 Nc8 Nh2 f1N Bc2 Ng3 Nf1 Na4+ Kb7 Nh5 Rd2 Be2 Bg6 Bd3 Re2 Nc5+
1n4q1/n1R1K1QP/1rb3B1/2Q1NNq1/k1q2NP1/rr1N1rQ1/1b1r4/B2Q1R2 w - - 0 1 illegal: No proof kernel
1nN5/rkq1Q3/RN4QN/1q2Q1br/1Qb2B2/1B1P3K/nn2R1P1/nb2rN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 a5 e4 f5 b6 h5 d6 Kc6 b5+ Kb7 e5 c5 e6 a4 d7 c4 g6 c3 e7 h4 e8N a3 g7 a2 Qc2 f3 Nh3 f4 Bc4 Qc7 d8Q Bf5 Bb3 Be7 Re1 Nf6 g8N Nd5 Nh6 Ra7 Re2 Ne3 Qcd3 Bh7 Qg6 c2 Kg1 f2+ Kh2 f3+ Nf4 f1Q Kh3 f2 Nd5 Nc4 Nd6+ Ka8 Qd7 Nb2 Nc8 Kb7 Qde6 Bd8 Qe7 Re8 Nbc3 Rh8 Nd1 Re8 N1e3 Rh8 Kg4 h3 Kh4 h2 Kh3 Qd1 Nf1 h1R+ Nh2 Re1 Nf1 Ka8 Qee8 Bh4 Qe7 Na6 b7+ Kb8 Re4 Qe2 Ndb6 Qec4 Rb1 a1N Re2 Nd1 Rb2 Q4c6 Ra2 Nb2 Ng3 f1B Ra3 Nc5 Ra6 Nd7 d3 Rd8 Rd2 Be2 Nc4 Rh8 Nf1 Bd1 Nf5 Bg8 Re2 Rh5 Bf4 c1N Nh6 Bc2 Bg5 Qa5 Be3 Qd6 Bf4 Kc7 b6+ Kc6 b8Q Bb1 Nce3 Bc4 Nd5 Na2 b7+ Qb6 Qgh7 Qb4 Qbe5 Qd6 b8Q Qc7 Ra4 Qa6 Qbb4 Qb5 Qg6+ Kb7 Ra6 Nb8 Ndb6 Bg5+
B4B2/NRn1nq2/bR5K/1N1N1b2/4kP2/1qQr2n1/q2QPbbr/2BB2N1 w - - 0 1 illegal: No proof kernel
n1B3r1/2b1RNQN/2R1N1r1/2q2Q2/Pk2P2q/b1n1Rbqb/R1n3N1/K5B1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 Kc2 g5 Kb2 b5 h4 f5 e4 g4 a4 b3 h6 b4 e6+ Kd6 h5 g3 h7 c4 e7 f4 e8R g2 h6 f3 Rh3 f2 Qh5 Qh4 Qf7 Bg4 Ra2 c3+ Ka1 c2 Qf5 Nd7 Nf3 g1Q Nc3 Ra6 Be3 c1B Ng5 Qgg3 Nd1 Ngf6 Re7 Rg8 h8N Nb6 h7 Bf3 Bc4 f1B Bg1 Ng4 Ne3 Bg7 Ng2 Ne3 Bb5 Bf8 Bd7 Na8 Bc8 Ba3 Rh2 Bb5 Rh3 Bd7 Nhf7+ Kc7 h8Q Kb6 d6 b2+ Kb1 Nc2 d5+ Ka5 Nh7 Bh6 Qhf6 Bf4 Qg7 Be6 d7 Bc7 d8N Bd7 Qfg4 Rg6 d6 Bf5 d7 Be6 Ra1 Bf5 Ka2 b1N Qf4 B5g4 Ne6 Bf5 d8R Nc3+ Kb3 B5g4 Ra2 Bf5 Rd6 B5g4 Kc4 b3 Rc6 b2 Qff6 b1Q Qf5+ Qe5 Rg3 Qe1 Kb3 Qc5 Rh3 Be2 Re3 Qeg3 Ba6 Bef3 Bc8 Bb4 Kb2 Bh3 Qfe5 Nb5 Qf4 Ba3+ Kb1 Kb4 Qf5 Ncd4 Ka1 Nc3 Ra6 Ba5 Rd6 Bc7 Rc6 Nc2+
Qq2R1nq/4n1r1/2bbQQN1/B1N4P/B1qK3b/1rR2qB1/2P3BQ/3k3r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 e4 Ke6 h4 f5 b4 g5 h6 d5 h5 a5 h7 d3 Ke3 f4+ Kd4 f3 b6 f2 b5 a4 b7 a3 b6 d2 Qe2 d1R+ Nd2 g4 Qc4 a2 Rh4 g3 Rh3 g2 Nf3 g1B Nh4 Ra7 Rc3 Bd6 Ng6 Bd7 Bg2 Bc6 Qe2 Re1 Nb3 f1Q+ Qf2 Bh2 Bd2 Bg3 Qf3 Bh4 Qf6+ Kd7 Rd1 a1Q Rb1 Qb5 Rb2 Rh1 e6+ Ke8 e7 Kd7 e5 Qa2 Qf4 Ke6 Qh2 Kf5 e8B Kg4 e6 Qa1 e7 Qc4+ Ke3 Ra3 Nc5 Rb3 Rb1 Qc7 Re1 Qc8 Rd3 Qc7 Ba5 Qf6 Rc3 d4+ Kd2 d3 Ke3 d2 Re2 Bd5 Ba4 d1Q e8Q Nc6 b8B Nce7 b7 Bc6 Re1 Qc8 Bbc7 Qg7 b8Q Qf8 Qa8 Qb8 Qf7 Qf3+ Kd2 Nc8 Re8 Nce7 Qd5 Nf6 Qf7 Rg8 h8Q Rg7 Qh6 Qh8 Qe6+ Qf5 Ke3 Nfg8 Rf8 Qa6 Qf6 Qf3+ Kd4 Qae2 Re8 Qa6 Qg1 Kg3 Qh2+ Kf2 Qe6 Qae2 Q6f4 Ke1 Qff6 Kd1 Ne4 Bb4 Bg3 Bd6 Nc5 Qc4+
2B2Q1K/4n1B1/2rq4/b2PB1Qb/3qR1Q1/N2br1Pb/R1nk4/2NrqBQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 e4 c5 g3 a5 d6 f5 b6 c4 d5 f3 d7 h4 b3 f2 b7 a4 g6 f4 g7 f3 Qc2 h3 Ra2 h2 Na3 c3 Ne2 Na6 b8B Ne7 g8Q Rh6 Qd1 c2 Bb2 c1R Qg4 Rhc6 Bd4 R1c3 Nc1 Re3 Rg1 Qb6 d8Q h1B Bc7 Be6 Kf6 Qc5 e5 Qd6 Rg2 Bf7+ e6 Bh5 Rh2 Bg2 Rh4 Bh3 Bb8 Bh6 Qf8 Bg5+ Kg7 Bf4 Kh8 Bh6 Be2 f1B Bg7+ Bf4 Qf6 f2 Qfg5 Ra7 Bc4 Bd3 Qg1 f1Q Bc7 Be5 Bb8 Kc3 b4 Qf2 b5 Qe1 b6 Nb4 b7 Nc2 Bc7 Ra8+ b8Q Kd2 Qf8 Bc3 Ba6 Rb8 Bc8 Rb1 Bb8 Ba5 Bc7 Ng8 e7 Ra1 e8B Ne7 Bg6 Rb1 Be4 Ra1 Bg2 Rb1 Nb5 a3 Bf1 Ra1 Qd7 Rb1 Re4 Ra1 Qdg4 Rb1 Rb2 a2 Na3 a1Q Ra2 Qd4 Bb8 Qd7 Bbe5 Qd6 Ne2 Rd1 Nc1 Ra6 Q5h4 Rb6 Qhg5 Rc6
1r1B3K/b1N4b/3BPnk1/bPn4n/5Rqq/1NQ1BR2/Q1r3B1/q3nQQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 Ke4 f5+ Ke5 Kf7 e4 a5 b4 g4 h4 c4 d4 a4 h6 a3 d6 f3 d5 c3 h7 f4 h5 f2 b6 f3 b7 c2 h6 g3 d7 g2 b5 a2 d6 Qc7 d8Q Ra4 Ne2 g1B Rh3 Be7 Qf8+ Kg6 Nec3 Ra6 Bg2 f1N Nd5 f2 Nd2 Qc4 d7 Rd6 d8B Bg4 Rf3 Bf5 Nc7 Nf6 Nb3 Na6 b8B Rc6 Be3 c1N Qe1 Rg8 h8Q Bb4 h7 Ng3 Qd2 f1Q Qhg7+ Kh5 h8Q+ Bh7 Rb1 a1Q+ Qb2 Qa4 Qa2 Ba5 Rb2 Qe1 Rbf2 Nc5 Rf1 Qd1 Rf4 Qg4 R1f3 Qcb4 Qff7+ Qg6 Qc4 Qg4 Qf1 Rf8 Qhg8 Qaa3 Qgc4 Qb2+ Qd4 Qa1 Qc3 Qh4 Qg4+ Kh6 Qg8 Ngh5 Qg3 Bf2 Qh2 Kg6 Qhh1 Na4 Qhg1 Rc5+ Ke6 Nd3 e5 Ne1 Ke7 Rh8 e6 Qd4 Qb4 Rc2 Qc3 Kg5 Kf7 Nc5 Na6 Qe4 Bd6 Qf5 Nc7 Qfg4 B8e7 Rb8 Bd8 Ng3 Kg7 Nh5+ Kh8 Kg6 Bc1 Ncd7 Bd2 Ba7 Be3 Nc5
2b3B1/1N4qR/qqPn1R1n/PN4r1/1BQ1BqQ1/5Qb1/2b1Q1rk/2r1BK2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 Kf7 a4 Kf6 c4 e5 h4 g5 c6 d5 a5 b5 c7 d4 h6 e4 c5 e3 h7 d3 h5 g4 h6 b3 c6 e2 Bd2 b2 Nh3 g3 Nf2 g2 Nc3 b4 Nb5 b1R Ra4 g1Q Ne4+ Ke7 f6+ Ke6 f7 Kf5 Ned6+ Kg4 f5 Kg3 f6 b3 Ra3 b2 Nb7 Bd6 f8B Rc1 f7 b1Q Rh5 Qh2 Bg2 Na6 Be4 Qd7 Rb3 Be5 Bfb4 Nc5 f8Q Qg7 Rf5 Qh4 Rf6 Qf4 Qf7 Kh2 Qc4 Qfg5 Bdc3 d2+ Kf2 Qd3 Qf1 d1B Be1 Bc2 Rc3 Bh3 c8B Ra7 Bg4 Qf4+ Bgf3 Qd8 Rd3 Bg4 Rd7 Qb6 Rc7 Bc8 Qg1+ Kh3 Qg4+ Kh2 Rcf7 Ne7 Bd5 Rg8 h8Q Nf5 h7 Nh6 Rd7 Qe7 Bf7 Rg5 Qf8 Bb8 Bg8 Qg7 h8Q Qa6 Nd8 Nb7 Re7 Nd6 Nb7 Qg6 Rh7 Qg7 Nc5 Re7 Nb7 Ree5 Qe7 Rg6 Qe8 Reg5 Qe3 Qd4 Be4 Qdb6 Bgd5 Bc7 Qf8 Bb8 Bg8 Bc7 Bec3 e1Q+ Kf3 Rd1 Qge6 Nf7 Qd8 Qd2 Qdd3 Rh5 Qee2+ Rg2 Qg4 Bg3 Qde3 Qd6 Be1 Rc1 Q3f2 Rc5 Ke3 Qb8 Qef3 Rh5+ Ke2 Rg5 Kf1 Qf4 Q2e2 Nd6
n2qqn1r/3b1k2/qP3Pr1/1Q1Rq1rR/RB2R1BK/Q4N2/1n3bBB/4N3 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 Kf2 a5 g4 c5 d4 c4 g5 h3 Kg3 e4 g6 h2 g7 a4 f6 c3 f5 c2 f7+ Ke7 b6 a3 d6+ Kf6 d7 e3 b5 e2 b7 e1N d5 a2 d6 Ra6 Nd2 Nd3 Ndf3 Ne7 g8B Ng6 Bg2 Nb2 Bf4 c1Q Qa4 Qf1 Qa3 h4+ Kh3 Bh6 Ne1 Nf8 Ngf3 Kg7 Kg4 h3 b6 Ra5 f6+ Kg6 Bg3 Na6 b8R Nc7 Kh4 Qa6 Rb7 Qe8 d8Q Rg5 Qd7 Na8 Qb5 Bd7 Rc7 Qd8 Rc4 Qe8 Re4 Qd8 Rc1 a1Q Rcc4 Qe8 Ra4 Qd8 Rf1 h1R Bh2 Rg1 Rf2 Qe8 Rc2 Qd1 Rc5 Qd4 Rd5 Qde5 Rc5 Kf5 Bh7+ Ke6 Bg6 Qd8 Bh5 Rg6 Rd5 Be3 Rc5 Bc6 d7 Bf2+ Bg3 Qe8 d8R h2 Rdd4 Bd7 Rdd5 Be3 Bf4 h1Q+ Bh2 Bd4 Bf1 R1g5 Bg2 Nh7 f8B Kf7 Bg4 Qf1 Rc2 Qd3 Bb4 Bg1 Rd2 Qdd4 Rc5 Qdd6 Rdd5 Qde7 Rf4 Q7d8 Re4 Bf2+ Bg3 Qd6 Rde5 Rf5 Rcd5 Qde6 Rf4 Q6e7 Ree4 Re5 Rf5 Nf8+ Rh5 Qe6 Qa2 Reg5 Qa3 Bg1 Bf4 Qe5 Bh2 Bf2+
1nBB1Q2/1r4Pr/1n4N1/Q3R3/nBqN3P/3qr1bK/N1nBb3/N3Rbk1 w - - 0 1 illegal: No possible last move, all moves rejected
b2Q1rB1/1bbP3Q/1k1NR3/N2R1R2/2QrRBrn/4P1q1/K5n1/Qn1qb3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Kd7 Kd2 c5 Kc2 Kc7 Kb3 a5 h4 f5 d6+ Kb6 d7 g5 h6 f3 h7 g4 d5 f4 d6 g3 h5 a4+ Ka2 g2 b4 c4 h6 c3 Na3 c2 Rh4 f2 Qd5 f3 Bf4 c1B e3 Qc7 d8R Bb7 Ne2 g1R Qc4 Na6 Nd4 Bd2 Nb3 Nc5 Na5 Be1 d7 Rg3 Rd1 Bd6 Rf8 Ne7 Rd5 Rg4 Rff5 Rhf8 h8Q Ne6 h7 Ng6 Qa1 Be5 Rh6 Nh4 h8Q Rae8 Be2 f1N Qh7 f2 Bd1 Nd2 Bb3 f1B Rg6 Ka7 Rgf6 Nb1 b6+ Kb8 b5 Bg2 Rh6 Ba8 b7 Ka7 Rg6 Kb6 b8Q+ Bb7 Qc8 Qb8 Qd8+ Bc7 Nc2 a3 Nd4 Bh1 Rh6 Ng2 Rh4 Ng5 Rh6+ Re6 Rg6 Rd6 Re6 Nf3 Re4 Ka7 Re6 Nfh4 b6+ Ka8 Rde5 Rd5 Nb5 Rd4 Re4 Bd5 Nc6 Kb7 Na5+ Ka6 b7+ Bc6 Nd6+ Kb6 Qc1 Bd5 R6e5 Bc6 Bg8 Bd5+ Qc4 Bc6 Kb3 a2 Re6 Bd5 Qb2 a1Q Qc3 Qa8 b8R+ Bb7 Rc8 Qb8 Qc1 Qc3+ Ka2 Qd3 Q1c3 Ba8 Qa1 Qd1 Qde7 Bd8 Rcc5 Bc7 Qf6 Qd8 Qfh8 Qg5 Rcd5 Bb7 Qf6 Qg7 Qd8 Qe5 Bh6 Qg3 Bf4 Ba8 Rde5 Bf2 Rc5 Ne1 R4e5 Bhb7 Rcd5 Neg2 Re4 Be1
R2n1N1Q/1Pn2r2/1Kb3Pn/2N1b1Nn/1R1q1R2/r3q1b1/1N3QBR/1kq3B1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 e5+ Kc4 c5 b4 h5 f4 e4 d4 e3 g5 e2 f6 e1B f5 a4 g6 a3 f7 h3 f6 a2 b6 h4 Kb5 c4 b7 c3 Be3 c2 Qe2 c1Q Qd2 h2 Bg2 h3 Nc3 Ra3 Nd1 Nc6 b8R Bg7 f8N Bd7 f7 Be5 Nf3 B1g3 Ng5 Rh7 Nb2 Nh6 Qf2 Qe1 Rb1 a1N Ra8 Nc2 Nfe6 Be8 f8N Rf7 Nc5 Qf6 Rf1 h1Q Kb6 h2 b5 N2b4 Ra5 Rc3 Ra2 Nd8 Ra8 Bc6 Ra2 Qf4 Ra8 Ke7 d6+ Kf6 d5 Kf5 d7 Na6 d6 Nc7 Bd4 Ra3 Be3 Nb7 d8Q Qe2 Qe8 Nd8 d7 Qg1 Bd4 h1N Be3 Qef3 Bd4 Qc1 Be3 Nb7 d8R Qf4 Rd4 Nd8 Re1 Qf3 Re2 Qgd1 Rh4 Qd4 Rh2 Qff4 Re1 Qf3 Rf1 Qff4 Qd2 Qf3 Bg1 Qff2 Qc2+ Kf4 Qf5+ Ke3 Qf3+ Kd2 Qf6 Qfe3 Rf4 Kc2 Qh8 Re7 Qf7 Bf2 Qff6 Ng3 Qf7 Nh5 Qff6 Bg3 Qf5+ Kc3 Qc2+ Kb4 Qf2 Kc3 Nc4 Nb7 Rb4 Rb3 Ka7 Rf7 b6 Nd8 b7 Ra3+ Kb6 Rf5 Qe1+ Kc2 Nb2 Rf7 Qf2+ Kb1
RN4n1/PNb1R3/nQrB2bK/3Q1q2/1r1N3b/4B3/P2NB3/k2nqrnB w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kb4 f4 e5+ f6 c5 g4 b5 d4 h5 d6 c4 d5 e4 d7 c3 a6 c2 d6 e3 f5 h3 a7 h4 Qd5 h2 Qb7 h3 Nd2 Kc3 Bc4 e2 Qb6 e1B Bf7 b4 Bh5 b3 Ngf3 b2 Nd4 Qe8 d8Q b1Q f7 Nf6 d7 Bd6 f8B Bc7 Bd6 Na6 Rf1 Rg8+ Kh6 h1N g5 h2 g6 Nf2 g7 Nd1 Be2 Bh4 Rf4 Rf8 g8B h1R Bd5 Rf1 Bh1 Rb8 Re4 Qb5 Rb1 Bb7 Re5 Be4 Re7 Rg8 Rb4 Rc8 Rb1 Rg4 Rb2 Qa5 Rb1 Qf7 Qg8 Qe5 d8N Qg3 Rb4 Qe1 Nb7 Qd5 Rb1 Qa5 Qd5 Rgf4 Bca3 c1N Bac5 Rg4 Rb4 Qb5 Rc4+ Kb2 Rc3 Ka1 Rd3 Nh5 f6 Bg6 f7 Nf6 f8N Qd7 Rf3 Qf5 Nd7 Rf4 Nb8 Re4 Bd3 Ne2 Rg3 Ng1 Be2 Bf7 Rg8 Bg6 Ne6 Rb4 Be3 Bd8 Nd4 Rc6 Nd7 Bc7 Ra8 Qh3 Nb8 Qg4 Bg2 Qf5 Bh1 Ng8+
1nK1B2B/P2RRb1n/r1P4N/b1QnBR2/3qRQ2/B7/1N3b2/1k2nrrq w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 c4 e5 h4 d5 a4 b5 c6 g5 h6 d4 c7 d3 a5 d2 h5 b3 h7 b2 c5 b4 h6 b3 a6 Bg7 a7 Na6 Nc3+ Kd4 Nf3+ Ke3 Na4 b1Q Ba3 e4 Nh2 b2 Qf3+ Kd4 Bb5 d1R Re1 e3 Be8 Kd3 c6 Bd7 c8R Kc2 Rc7 Be6 Rd7 Bf7 f6 e2 Kf5 Rb8 Ng4 Rb6 Ke5 Qc1 f5 b1N Nb2 Nb8 Qf4 Nc3 Rb1 Nd5 Kd6 Ra6 Ra1 Bh5 f7 Bc3 f8Q Ba5 f6 Bf7 Ra2 Kb1 Qe7 Be6 f7 Ngf6 f8R Rg8 h8B Nh7 Rf5 Bf7 Be5 Qb6 Qf8 Qd4 Re7 Rd3 Rd1 e1N Rd2 Rc3 Re2 Rc2 Re4 Rf2 Rd7 Rf1 Re7 Nb6+ Kc7 Nd5+ Kc8 Qcd1 Rd7 Qf3 Qc5 Qh1 Nc4 Rg7 Rae2 Rg6 Nb2 Rg8 Nf6 g4 R2e3 g3 Ng4 g2 Re2 Nf8 h7 g1B h8B Nh7 Nh6 Rg6 Rg2 Rg8 Rg7 Bf2 Re7 Nf8 Rh7 Rgg1 Rg7 Nh7 Rd7 Be6 Re7 Bf7
1b4n1/2Pn4/1qRR1QbR/1B1BNb2/Q1r5/1n3B2/R1r2nNP/KnB2nk1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 b4 Ke4 Kb2 f5 c5 g5 h6 a5 b6 d5 b5 f4 e6 a4 h7 f3 b7 g4 b6 d3 e7 f2 e8B d4 c6 d2 Ra2 Ke3 Nh3 d3 Bf7 g3 Na3 g2 Bd5 g1N Bfg2 f1N Nf4 Kf2 e4 Be7 e5 Nd7 b8Q Nh3 b7 Bd6 e6 Qb6+ Ka1 Ra6 Qa7 Bb8 Nc4 a3 e7 Ra4 Ne5 Rc4 e8B Rc2 Qg4 d1N c7 d2 Qg7 Nc3 Qa4 d1B Qf6 Bh5 Bgf3 Nb1 Ng2 Bg6 Rg1 Ng3 Re1 Nf1 Rd1 Kg1 Rd3 Nf2 Rd2 Nf8 Bb5 Bcf5 Rd3 Nd7 Rc3 Nh6 Rc6 Rf8 h8R Ng8 Rh6 Re8 Nf7 Re4 Ne5 Rec4 Rb2 Ba7 b8R a2 Re8 Bb8 Ree6 Re2 Rc2 Rd2 Red6 Re2 Kb2 a1N Ka2 Nb3 Kb2 Nd4 Ka1 Rd2 Rb2 Rdc2 Ra2 Nb3+
nnQ1N1r1/R2b2P1/1r3r1Q/b2N1Q2/5K1N/q1r3QB/1Bbn2P1/b2R1N1k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 b4 h5 d3 f5 d6 a5 g6 c5 d7 c4 g7 a4 b6 c3 b7 c2 b5 h4 b6 h3 Ra2 a3 Ra1 h2 Nd2 a2 Be2 Nf6 Nf1 Qe7 d8N Nd5 Qd2 Qa3 Ne6 Rg8 Nc7 Bb4 Bb2+ Bc3 Rd1 a1B Qe3 c1R d4+ Kd6 Bb5 Ba5 Bd7 Ra6 Qd3 Rc3 e5+ Ke7 e6 Kf6 e7 Kg5 e8N Kh4 Be6 Bd7 Qe3 Ne7 d5 Nc8 Ke2 Kg4 d6 f3+ Kd2 f2 Nd5 Kh4 Nf3+ Kg4 Rg1 h1R Qh6 Rh3 Nh4 Rhf3 Rh1 Rf4 Rh3 Rb4 Rd3 Rbb3 Ke3 Rb5 Bf7 f4+ Ke4 f3 Ke3 Nc6 b8Q Rb4 b7 Nb6 Qd8 Nb8 Qc8 Na8 Qc5 Rf4 Be6+ Rf5 Ke4 Rb6 Rd4 Nc7 Ra4 Na8 Nfe3+ Kg3 Qc8 Kh2 Nf1+ Kh1 Qc5 Rf6 Bh3 Bb5 d7 Bc6 d8Q Bb5 Qdc8 Bd7 Nfe3+ f1N Ke5 Rfe6+ Kf4 f2 Qb5 Red6 Qd3 Rf6+ Qf5 Bb4 Ra7 Ba5 Rd4 Nd2 Rd3 Nc6 b8Q f1B Qe5 Be2 Nf1 Bd1 Qe1 Ba4 Qg3 Nb8 Rd4 Bc2 Rd3 Ne4 Rd1 Nd2
1r5n/1B2B1k1/n2b3q/Q2Q4/qQq2R2/1b1Pq3/NRQ1NPnR/2nR1r1K w - - 0 1 illegal: No possible last move, all moves rejected
3Q4/qRQ1rk2/rBBqn3/Q1Q3r1/3q4/NK1P1rqn/1N1bPN2/2R2b1N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 f5 h4 a5 d6 g5 d7+ Kf7 h6 c5 b6 c4 b7 f3 d3 f2+ Kd2 g4 Kc2 g3 b5 a4 h7 c3 h5 a3 b6 g2 h6 a2 Be3 f4 Qd2 f3 Na3 Na6 b8Q Nc7 b7 Qe7 d8Q Qd6 Nh3 g1Q Bb6 Qgg3 Kb3 c2 Bg2 c1Q Qa5 f1R Rb1 a1Q Nf2 Qad4 Qba7 Rg1 b8Q Nf6 Qc5 Qcg5 Qaa5 Ne6 Qbc7+ Be7 Rc1 Re8 Rb1 Ne4 h8N+ Kg8 Ng6 Kf7 h7 Qge3 Rb2 Ra6 Nf4 N4g5 Nh5 Nh3 Rb1 Bd7 Rc1 Bg5 h8N+ Kg8 Ng6 Kf7 Rh2 Re7 Bh1 Qa1 Rg2 Qed4 Rh2 Bd2 Bg2 Qg5 Ng3 Bc6 Ngh1 Qgg3 Ng4 f2 N6e5+ Kg7 Nec4 f1R Be4 Kf7 Nb2 Rf3 Ngf2 Qgg7 Rg2 Kf6 Qf8+ Rf7 Qa7 Re3 Qd7 Ra8 Nb5 Qg8 Rg7 Reg3 Bh7 Bg2 Qac3 Rf3 Be4 Bf1 Bc6 Qa6 Qdc8 Qb7 Q3b4 Ra6 Na3 Qa7 Qba5 Rg4 Rh7 Qg5 Qd7 Qh4 Qfe8 Qhg3 Qed8+ Kg6 Qb7 Rg5 Qbc8 Rf8 Rc7 R8f7 Rb7 Re7 Qcc7 Kf7
q1B1rkBQ/4bNrQ/1Q1Rb3/Q3Kb1R/6r1/1PN2B2/1B2b1nP/1q1n3r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 d5 Kd3 a5 e4 g5 c4 f5 e6 a4 c5 a3 e7 a2 b3 g4 b6 g3 h6 g2 b7 f4 h7 f3 c6 f2 c7 Na6 b8Q Bf5 c8B Nc7 Qe1 Ra4 Qa8 Nb5 Qb8 Nf6 Qc3 Ng4 Qa5 Ne3 Nf3 g1R Bg2 f1R Qbb6 Nc3 Bb2 Ncd1 Ne5 Re1 Bf3 Rg7 Rf1 Ng2 Nf7 Rc4 Rf2 Rh1 Nc3 Ra4 Rc1 a1Q Rd2 Qb1+ Rcc2 Rhg8 h8Q Be6 e5 Rc4 Ba6 Qa8 Qh7 Rc8 Bc4 Rg4 Ba6 R8g7 Bb7 Kd7 e8B+ Ke7 Bb5 Re8 Bc4 Bf5+ Be4 Be6 Bc8 Bf5 Rf2 Be6 Rf6 Bf5 Rd6 Be6 Ke2 d3+ Kf3 d4 Bcd5 Bf5 e6 d2 Bc4 d3 Bc6 Nf2 Be4 d1B+ Re2 Kf6 e7+ Be6 Bed5 Bc2 Re5 d2 Rh5 Nd1 Bdb7 Bf5 Bc6 Rd8 e8Q Be7 Qeh8 Rg8 Ke2 Re8 Bf3 Nf2 Bcd5 d1B+ Kd2 Be2 Bc4 Nf4 Ke3 Nd1+ Kd4 Ng2+ Be4 Bd8 Bd5 Ke7 Ke5 Bf1 Bf3 Be2 Nh6 Bd7 Bg8 Bde6 Nf7 Kf8 Qd4 Bg5 Qdb6 Be7
b2nq1QB/6N1/b1n1RB2/5Pq1/n3B1k1/QNN4N/Rr2rBnP/b2K2b1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 f4 Kf6 c4 d5 c5 a5 b6 g5 c6 e5 c7 a4 b7 g4 b5 d3 h6 a3 h7 d2+ Ke2 d4 b6 a2 Bg2 e4 Qc2 d1B+ Kd2 g3 Nc3 d3 Qa4 e3+ Ke1 e2 Nh3 Nc6 b8B Ba6 c8Q Qe8 b7 Nge7 Qa3 Nd8 Bb2 Nec6 Be4 g2 Ba7 Bc5 b8N Bg1 Bf2 Bc2 Kd2 e1N Kc1 Rg8 h8B+ Rg7 Kd2 Bb1 Kd1 d2 Qb4 Bbd3 Qa3 Bb7 Na6 Rb8 Nc5 Bda6 Nb3 Ba8 Rc1 a1B Rc2 Rb5 Qb8 Nd3 Qc8 Nc5 Qb8 Na4 Qc8 Kf7 f6 Rh7 Qb8 Ke6 f7 Rg7 f8N+ Kf6 Bd5 Kf5 Be4+ Kg4 f5 Re7 Ne6 Rb6 Ng7 Re6 Bd3 Re2 Be4 Rb7 Nb1 Rb6 Bf6 Rb5 Ra2 Rb4 Kc2 d1N+ Kc1 Ne3 Nc3 Rd4 Qc8 Rdd2 Qe6 Rb2 Qg8 Nc2 Kd1 Ne1 Bb6 Bc5 Rf1 g1Q Rf3 Qg3 Re3 Ng2 Ba7 Rec2 Re2 Bg1 Bf2 Qf4 Bd3 Qg5 Re6 Re2 Bc2 Nb6 Be4 Na4
1rnk1r2/2n3b1/2K1b2r/4PPRQ/4B1bq/BRN1qQ2/1RRr1QQN/3b4 w - - 0 1 illegal: No proof kernel
r2R1N2/4P3/2Rb1KBB/k1q5/1r4b1/2N1R1PQ/qrBB2n1/1n1RrqqQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 e4 a5 d4 c5 b4 Kc7 g3 Kb6 g6 h5 e5 c4 e6 a4 d6 h4 e7 a3 d5 c3 g7 h3 d7 h2 d6 c2 Ne2 a2 Bd2 c1Q Nbc3 Na6 Nd4 Rh4 Bd3 Nf6 g8B Bh6 Re1 h1R Re3 Re1 Bb3 Nc5 Ne6 Nfe4 Nf8 Qc7 d8Q Ne6 Qd7 Qc5 Bbc2 Qb2 Rc1 a1Q Rb1 Re2 Qh1 Qba2 Rd1 Bg7 Bb3 Be5 Bbc2 Ng7 Qe6 Nh5 d7+ Bd6 d8R Rg2 Qg6 Re2 Qg4 Rg2 Qgh3 Bd7 Ne2 Nc3 Be4 Nb1 Nc3 Ka7 b6+ Ka6 b5+ Ka5 b7 Re2 b8B Re1 Kf2 f3 b6 f4 b7 Bg4 Bg6 Re2+ Kg1 f2+ Kh2 f3 Rc8 Nf4 Rc6 Re1 Ba7 f1R b8R f2 Rd8 Ng2 Bb8 Bf4 Be5 Re2 Bg7 Rfe1 Bh6 f1Q Bcd3 Bd7 Bc2 Rg4 Qh5 Qg1+ Kh3 Bd6 Qf5 Rb4 Qg4 Nf4+ Kh4 Bc8 Qf5 Ng2+ Kg5 Qf1 Kf6 Qg1 Qfh3 Bg4 Bc1 Rd2 Bcf5 Rdb2 Bd2 Qac4 Be4 Qaa2 Bc2 Qcf1+
b1rB1K1k/R1PqQ3/4R3/2NN1R2/nBQ1q1P1/rqb1nr2/r1Bq3B/6R1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 Kg7 Kg4 e5 Kh5 d5 f4 a5 c4 e4 b4 e3 g4 d3 g6 a4 c5 e2 c6 e1R b6 d2 b7 h6 b5 a3 b6 a2 Nc3 d4 Bd3 Ra7 Ne4 Bd7 Nc5 Re2 Qe1 d1Q Bc2 d3 Nh3 d2 Rg1 Na6 b8R Re8 b7 Ne7 f6+ Kg8 f5 Nd5 g7 Re3 Kg6 h5 Nf4 Rf3 Qe7 Ne3 Nd5 h4 Bb2 Qc7 Re8 h3 b8B h2 Be5 h1Q Bh2 Qb7 Bbc7 Qb3 Bd8 Qe2 c7 d1Q Qd6 Qed3 Re6 Q1d2 Qe7 Bc6 Rab1 Qa3 Rb7 Ra8 Ra7 a1R Kg5 Kh7 f7 Qab3 Kf6 Ra3 g8Q+ Kh6 Qg5+ Kh7 Qf4 Rg8 Qe4 Kh8 Qc4 Bg7+ Kg6 Re8 f8B Bc3 Kf7 Rc8 f6 Ba8 Bh6 Rg8 Bf8 Rg6 Ke8 Rg8 f7 Qe4 Bf4 Qhh7 Bh2 Rg5 Bh6 Rh5 Kf8 Rhh3 B6f4 Ra2 Bd6 Qhf5 Nb7 Rhg3 Ba3 Nc5 Bb4 Na4 Nc5 Qg5 Ke8 Qg7 f8R+ Kh7 Rf5 Kh8 Qd6 Qd7+ Kf8 Rf1 Qe7 Rgf3 Qf7 Rfa1 Qe8 Ra3 Qe7 R1a2
1b1Q1Q2/k1BBNbnB/b1r5/1rNQ4/K1r1B3/5RQ1/1PqqqPpn/1R6 w - - 0 1 illegal: No possible last move
r1q2QQq/2B1q2N/k1b2b2/8/1n4bB/PQR1Nn1K/2BR1p1P/r1B1Q2r w - - 0 1 illegal: No possible last move, all moves rejected
8/1B1n2B1/Q2bnR2/bbr2qrN/q1PK2Nk/R2n2NN/3pB2P/3qQ2B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 c4 f5 b4 d5 e4 a5 e6 Kf6 e7 g5 e8B f4 b6 d3 b5 a4 e5+ Kf5 b7 f3 Ke3 Kg4 e6 a3 e7 d2 h6 a2 h7 Nf6 b6 Rg8 h8N Ne4 Bb2 Bd7 Ng6 Ra5 Ne5+ Kh4 Be2 g4 Kd4 f2 Nc3 f1Q Nh3 g3 Qe1 d1N Ng4 Bb5 Bc6 Nd7 e8B Rg5 b8Q Bd6 b7 Qf5 Qa8 Nec5 b8N Nf2 Ne4 g2 Rf1 g1B Ng3 Nfd3+ Rf2 Rg8 Qa6 Rg5 Bh5 Qe8 Bb7 Ne6+ Ke3 Qd8 Bg7 Qe8 Bf3 Qd8 Bh1 Qe8 Rb1 a1Q Rb3 Qb1 Ra3 Qd1 Nc6 Qa8 Nf6 Qe8 Be2 Qa8 Nfh5 Qe8 N3f4 d4+ Kf3 Qa8 Rf1 Be3 Ne5 Bd2 Rf2 Nb2 Ng4 d3 Rf1 B2b4 Ke3 d2 Nh3 Nd3 Ne5 Bc6 Ng4 Rc5 Rf3 Bb5 Rf4 Qg6 Rf6 Qf5 Qb6 Qaa4 Qa6 Qf1 Ke4 Ba5 Ke3 Qf2+ Ke4 Qf5+ Ke3 Nd8 Kd4 Ne6+
k1bB1b1Q/NNB3n1/2q3R1/2b2p1P/1P6/4RnqB/Rr1rB1R1/2Kr1n1Q w - - 0 1 illegal: No possible last move, all moves rejected
qk1n1NrB/1b6/B2nR3/1Nq1pR2/QPP5/r3R3/r3b2N/q1bKNQR1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 a5 f4 d5 h4 Kd7 f6 Kc7 f5 g5 f7 e6 h6 a4 f6 g4 h5 a3 h7 d3 h6 d4 b6+ Kb7 Nf3 g3 Nc3 a2 Bb2 g2 Nh2 Be7 f8R g1Q f7 d2+ Ke2 Qg5 Rg1 Qc5 Rg3 Bf6 Re3 Ne7 Qe1 Rg8 h8N d1R h7 Be5 Ng6 Nf5 h8Q Rd3 Nh4 Nc6 N4f3 Qdd5 Qd1 Nd8 Qh3 Qe4 Rb1 a1Q Ke1 Rd2 Bb5 Ra3 Ba6+ Ka8 Nb5 d3 c4 Rf2 Bd4 Rfa2 Qa4 d2+ Ke2 Qec6 Rg1 d1B+ Ke1 Qe4 Qf1 Bc2+ Ke2 Bg7 Ne1 Bb1+ Bb2 Bd3+ Kd2 Bd4 Re8 Qed5 f8R Nd6 Rf5 Bb1 Kd1 Bd3+ Bc1 Bc3 Re7 Bd2 Re8 Qc3 Bb2 Bc1 Ba1 Qb2 Re7 Qb1 Bh8 e5 Re6 Qa1 Nd4 Qcc6 b7+ Ka7 b8N Qcc5 Nd7 Qa8 Nf8 Bb7 Nb5+ Kb8 Rh3 Bde4 Rhg3 Bd3 Re3 Be2+
n1nNQN1r/2qB4/4bkb1/3PrPrn/R2Q1B1b/B1p1K2N/2B1R1q1/5N2 w - - 0 1 illegal: No possible last move
1n1rNbq1/4KnBb/5NN1/rPnQ1pq1/R1R3q1/3R1N1k/P3R3/2rQ3B w - - 0 1 illegal: No possible last move
3KN1QN/k3N1B1/2RQB1bP/br3bq1/3pP2q/1q2r2B/1n1rNnRB/8 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kf3 f5 c4 d5 h4 Kd7 b4 Kc7 e6 Kb7 b6 a5 h6 f4 Kg4 d3 Kf5 a4 c5 f3 h5 f2 h7 g4 h6 d2 b5 g3 Ra2 a3 Bh3 f1B Bb2 g2 Nc3 Nd7 e7 Ra5 Ke6 Ngf6 e8N Ng4 c6+ Ka8 e3 Nf2 c7 Bb4 b7+ Ka7 Nge2 g1Q e4 Qgg5 Qb3 d1Q Qc4 Rg8 h8N Qb3 Qd3 Bg2 Rc1 Bf3 Qd2 Bh5 b8B+ Kb6 Qf4 Bg6 Qd6+ Kb7 b6 Rb5 Ba1 Ba5 Rac2 a2 Bb2 Ka6 b7+ Rb6 Rg1 a1R Rg2 Rd1 Rc1 Qh4 Rc2 Qdg5 Ba1 Nf6+ Ke7 Rd2 Kd8 Bcf5 c8B Nd1 Be6 Nb2 Bc7 Ka7 b8Q+ Ka6 Qb4 Rf8 Bh2 Ng4+ Qe7 Nf2 Qd6 Rf6 Qf8 Ka7 Qg8 Bg4 Nb1 B4f5 Rc6 Qgh5 Nbc3 Q5g5 Na4 Rb5+ Nb6 Na4 Bae5 Nb2 Bd4 Bc3 Bde5 d4 Nd5 Rf7+ Bf6 Rfb7 Ne7 Ba5+ Rb6 Rc7 Bfe5 Rc3 Bg7 Bb4 Rc6 Re3 Qe5 Bc3 Qd6 Ba5+
QNq2k2/r2B1q1b/1bPRrPrN/B3p1RN/5q1n/N1Q3R1/2KR1nn1/8 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 h4 d5 b4 e5 c4 g5 f4 a4 h6 a3 c5 d3 f6 d4 f7+ Ke7 f5 a2 h7 g4 c6 g3 b6 g2 b5 Ra3 h5 Ra5 b7 Nf6 b6 Ra7 h6 Qe8 Qc2 Nd5 f6+ Ke6 Rh2 Ne3 Ne2 g1R Ng3 Bc5 f8Q Qf7 Nh5 Rg6 Na3 Nd7 b8R Ng2 b7 Bb6 Qc3 Rhg8 Qd8 Re8 h8R Nf8 h7 Bd7 Rb1 a1Q Rg8 Re7 Kd1 d2 Kc2 d1N h8N Nf2 Bd2 Bc8 Rd1 d3+ Kb3 Bd7 Rc8 Be8 b8N Qc1 Rh3 Bd7 Rg3 Re8 Be1 Qf4 Rd2 Re7 Rc7 Bc8 Rd7 Ba6 Ra2 d2 Kc2 Bc4 Qc8 Bd5 Qb7 Be4+ Rdd3 Re8 Qa8 Ree7 Be2 Bf5 Bg4 d1Q+ Kb2 Qdf3 Kc2 Qd5 Bh3 Qd8 Rg5 Qc8 Rg3 Rg4 Rg5 Bh7 Bd2 Ng6 Rd7 Qg7 Nf7 N6h4+ Rdd3 Re8 Nh6 Qe7 Qb2 Qf7 Ba5 Ree7 Qc3 Qg6 Nf5 Kf7 Rd6 Kf8 Rb2 Qf7 Ra2 Ng6 Nh6 Re6 Rb2 Rh4 Bf5 Rg4 Ra2 Ree7 Bd7 Re6 Kb3 N6h4 Rad2 Nf5 Kc2 Nfh4+ Rf5 Rg6 Rfg5 Qd4 Qe3 Qc4+ Qc3 Qf4
B1b2B2/4N2P/2nkqB1n/R1RP2bQ/R3qpN1/3r1r1K/2R1qQ1b/2B2r2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 a5 h4 g5 e4 f5 b4 c5 d4 f3+ Kh3 f4 b6 c4 d6 a4 e5 a3 b7 c3 h6 c2 h7 f2 e6+ Kc6 d7 a2 e7 Ra6 e8R Ra7 h5 Ne7 h6 Qc7 b5+ Kd6 b6 Qc5 Nf3 Ra8 Nc3 Qc6 Ne5 Qd5 Qh5 Ng8 Ng4 Ra5 d8B Ra3 Bf6 Qe4 Bg2 f1Q Re5 Qfe2 Rh2 Be7 Ra5 Nc6 b8R Qe6 b7 Q2e4 Rb1 a1Q Rba8 Qaa2 Rbb5 Qac4 Qh4 Qce2 Qf2 Bd8 Bf3 Rb3 Nd5 Rd3 Rc5 Be7 Ba3 c1R Rg2 Rf1 Bc1 Bd8 R8a7 Nge7 Ra8 Nf5 Ne7 Rg8 h8B Rg7 h7 Nh6 Ng8 Rd7 b8Q+ Rc7 Qb5 Rb7 Qa6 Rbb3 Bhg7 Ra3 Ne7 Rab3 Rg3 Ra3 Bg2 Rf3 Qb5 Rad3 Bh1 Bb6 Ra4 Qc2 Nd5 Ne5 Qe8 Qe1 Qh2 Bd8 Qh5 R3f2 R8a5 Qcd1 Be4 Rff3 Bf8+ Be7 B6g7 Qb4 Nc3 Qbc4 Bb7 Nc6 Ba8 Qe4 Qc2 Qce6 Nd5 Qde1 Kh2 Qd1 Ne5 g4 Rg2 Qde1 Re2 g3+ Kg2 Qd2 Ng4 Qd1 Kh3 g2+ Kh2 g1B+ Kg2 Bh2 Qd2 Bg3 Kh3 Nf5 Qe1 Q6e5 Rec2 Qe6 Qf2 Nh6 Bh8 Qde2 Bhg7 Kd7 Be5 Bf6 Ne7 Bg5 Bf6 Kd6 d5 Bh2+
RrQN1R1Q/1n3RKp/2BnNb2/r5Bk/B1P4b/1r1Bb2P/6R1/2qn2q1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d3 Bb7 d4 Be4 fxe5 cxd4 Ra4 f4 Ra1 Bf5 gxf5 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 Kf7 Kd3 g5 Ke4 a5 c4 a4 b4 d3 f6 Kg6 b6 d2 b7 d6 h3 a3 e6 d5+ Ke5 f3 e4 g4 b5 g3 e7 f2 e8B+ Kh6 b6 a2 f7 g2 Qg4 d4 Rh2 d3 Nc3 Bb4 f8R Qd7 Nd5 Ba3 Ne2 g1B Nef4 d1R Rf7 d2 Nb4 Na6 b8Q Ne7 Kf6 Qd4+ e5 Nf5 b7 Nd6 Bd3 f1Q Rg2 Nc5 Bc6 Ra5 Qgc8 Be3 Qa8 Rg8 b8R Ncb7 Ba4 Qh1 Ne6 Kh5 Nc6 Re1 Ncd8 d1N Bc6 Qb2 Bd2 Qg1 Ba4 Re8 Kg7 Qc1 Bc6 Bb6 Bg5 Re3 Nc5 Bb4 e6 Be1 e7 Bh4 Nce6 Bc5 Bde4 Rb3 Bd3 Be3 Ba4 Rf8 e8B Rh8 Bec6 Re8 Rb1 a1B+ Rbb2 Rh8 Rgf2 Rf8 R2f6 Rh8 Rg2 Bc3 Rf8 Bb4 Rff2 Nb5 R2f7 Be7 Qa6 N5d6 Ra8 Rf5 Qb6 Ra5 Qd4 Qa3 Qb8 Rb4 Rg8 Nc5 Nb7 Nb5 Qdd8 Nd6 Qd7 Qc1 Rc8 Rd8 Qe8 Rb3 Qh8 Rd7 Re8 Rd8 Ref8 Rc8 Nbd8 Ncb7 Qc7 Rb8 Qc8 Bf6+
k1N2Q2/1q1RR2p/bbP4n/br1Q4/2P1NNq1/NB1B4/4r2K/qn2Br1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 e4 f5 g4 d5 Kg2 Kd7 b4 Kc7 c6 a4 g6 f3+ Kh2 d4 e5 a3 g5 f4 e6 d3 b6+ Kd6 e7 d2 e8N+ Kd5 g7 f2 b7 f3 b5 a2 b6 Ba3 g6 Na6 b8Q Qc7+ Nd6 Bc5 b7 Nh6 Na3 Re8 Ne2 Bb6 g8B+ Kc5 g7 Nb4 Bd5 Ra5 g8B Rb5 Nf4 Re2 c3 Ba5 Ne4+ Kb6 Bb3 Qe7 c4 Nc2 Bd5 Qf7 Qd6 Ka7 b8N Ba6 Qf8 Qb7 Nd7 Bb6 Rb1 a1B Bb2 Ba5 Bc3 Bb6 Ba5 Bc3 Rg1 Bb4 Rg7 Bc3 Re7 Bb4 Qe1 d1Q Rc1 Qd4 Qd2 Qg7 Rd1 Qg4 Ne5 Bc3 Nf7 Bb4 Nfd6 Bc3 Qf6 Ka8 Nc8 Bb4 Qf8 Bc3 Bg2 f1R Bb4 f2 Bh1 Qgd7 Bf7 Qg4 Qd5 Bd2 Bg6 Bc3 Bd6 Bca5 Rd2 Rb1 Bb4 f1Q+ Nf2 Qc1 Bd3 Qb2 Bc3 Rf1 Rd1 Qa1 Be1 Nb4 Rd2 Na2 Rd1 Nc3 Rd2 Re6 Ne4 Nb1 Rg2 Qf3 Rgg7 Qg4 Rd7 Re5 Rge7 Re6 Ng5 Re3 Ne4 Re2+
1nn5/R2rBb1p/P1Q2bqK/qQ1QPk2/NNrq4/4Q1R1/1N3n1b/N4B2 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kf3 c5 Kg4 f5+ Kh5 b5 g4 b3 d4 f4 e4 b2 a4 b4 e6+ Kd6 g6 c4 g7 c3 e7 f3 e8Q b3 a5 f2 e5+ Kc7 d6+ Kb7 d7 Kc6 g5 Kd5 g6 Ke4 d5 c2 d6 Be7 Qd5+ Kf5 Bg5 c1B Qb5 Nf6+ Kh6 Bb7 g8Q Nd5 g7 Nb4 Na3 b1Q Nf3 b2 Nc2 Nd5 Nd2 Nb6 Rg1 Bf3 Qgb3 Bc6 g8Q Bf6 Nc4 Qa2 Qgd5 b1Q Nb2 Ra7 Rg3 Bf4 Qe3 Qa4 Ra3 Nc8 Na1 Qd4 Ra2 Q8b6 d8N Rd7 Ne6 Rf8 Nc5 Qbd3 a6 Qa5 Nca4 Rg8 Ra3 Bb7 Rg1 Bh2 Rg3 Bc6 Rb3 Ba8 Bh4 Rg4 Rc3 Q3e4 Rc7 Rf4 Ra7 Qg2 Be2 f1N Bc4 Nd2 Bf1 Ne4 Bg5 Re7 d7 Nf2 d8N Rd7 Nc6 Bb7 Nb4 Rg4 Qa2 Bd5 Bh4 Bf7 Qad5 Qdb6 Qbc6 Rc4 Qcb5 Qd4 Qbc6 Bh8 Be7 Bf6 Qcb5 Rd6 Qec6 Rd7 Rh3 Qg8 Rg3 Qg6+
2q2N2/1Qn2P2/PRp1q3/N1q5/k2rbB1Q/3nbr1R/3NBBB1/1N2K1br w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 g4 e5 a4 b5 f4 h5 g6 e4 f6 e3 g5 e2 g7 h4 f7 b3 f5 h3 f6 b2 a5 b4 d6 Kc6 g6 Kb5 d7 c6 d5 b3 d6 h2 a6 Rh4 Ra4 Rd4 Nf3 Ne7 g8B Nd5 g7 Nc7 Bg2 Qe8 d8N Qe6 d7 Bc5 f8N Ba7 Rf1 h1R Nb7 Bc5 d8B Nd7 Ra3 Ne5 Na5 Nd3+ Kd2 Ba7 Qe1 Kb4 Qh4 e1B+ Kd1 Bf2 Bf4 Bg1 Nfd2 Rb8 f7 Rb5 Bdg5 Rf5 Bh7 Bb6 Bg3 Rf3 g8Q Be3 Bf2 Ba7 Nc3 b1Q+ Ke2 b2 Bf4 Qc1 Ncb1 Qc5 Bg6 Rhh3 Bh5 Rh1 Qgg5 Bb6 Qe7 Kb5 Rb3+ Ka4 Rc1 Ba7 Rb6 Bd7 Rc3 Bc8 Na3 b1Q Qd7 Qba2 Nb1 Qe8 Qde7 Bf5 Qd7 Qae6 Qc8 Be4 Qb7 Rhh3 Bg4 Q8c8 Kf1 Rfg3 Be2 Rf3 Rcb3 Nb2 Ke1 Rh2 B2g3 Bg1 Bf2 Rh1 Rc3 Nd3+ Kd1 Qh5 Nd7 Rc4 Qe7 Re3 Rb5 Nb2+ Ke1 Reh3 Rg3 Be3 Nf8 Rd4 Qh4 Qg5 Rb6 Qc5 Rg8 Rf3 Rg3 Qcd5 Rh3 Qh5 Qe7 Qc5 Qh4 Nd3+
B1kB3n/rb2p2n/bB3Rr1/3QP3/R6Q/Qr2qQb1/qBK3P1/N3nN2 w - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 Qd7 c4 Qh3 cxd5 Qxh2 e4 Kd8 d4 f5 Kd2 a5 b4 c5 d6 h5 e5 f4 d5 f3 g6 a4 d7 h4 b6 a3 b5 a2 g7 h3 b7 f2 b6 c4 Kc2 c3 Nd2 Qg3 Ba6 f1B Nb3 h2 Qf3 Nh6 g8Q Ra7 Bb2 Nf7 Ne2 Rh3 Bb5 Qf2 Bc6 Qe3 Ng3 Ba6 Rhf1 h1R Qg5 Rh6 Qh4 Nh8 Rf2 Rg6 Nf1 Rg5 Rb1 Rg3 Na1 Bh6 Rd1 Rg7 Rd4 Bf4 Ra4 Bh2 Qfg4 Rg8 Rf6 Bg3 Qf3 Rg6 Bb5 Nc6 b8Q Rh3 Qd6 Nb8 Bc6 Bcb7 Qa3 Qe4+ Kb3 c2 Kc3 c1N Kd2 Ba8 b7 Nd3 Kc3 Qe3 Kc2 Kc7 d6+ Kb6 Nb3 a1Q Be4 Qa2 Na1 Nc6 b8B Kb7 d8B Kc8 Bbc7 B8b7 Bd5 Nb8 Bb6 Nd7 Bc6 Nf8 d7+ Kb8 Ba5 Nh7 Bdb6 Bc8 d8Q Bb7 Qd7 Ba6 Ba8 Bcb7 Qdd5 Kc8 Qhh5 Rh4 Bd8 Rb4 Qh4 Rb3 Bab6 Ne1+
1N2b2K/1qPB4/1kNq1B1Q/R1r4Q/4Pn1b/r2RQRq1/3QpR2/1b1nr3 w - - 0 1 illegal: No proof kernel
rR4nB/P3Q3/R1bq1n1b/1Q1b1BkN/qB5p/1BPK3R/r1q5/1RN2n2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 a4 h5 f4 d5 g4 b5 g6+ Kf6 a5 e5 c6 e4 c7 b3 g5+ Kg7 a6 e3 a7 b2 Kd3 d4 Nd2 b1B Rh3 b4 Bb2 h4 Nb3 e2 Nc1 e1Q Ra6 b3 Nge2 Bd6 f6+ Kf8 f7 Ke7 f8Q+ Ke6 g7 Bd7 c8B Rh6 g6 Ba2 Ng3 Qb4 Qh5 Qa4 f5+ Ke5 f6+ Kf4 f7 Bc6 Bf5 Nd7 Qe2 Ndf6 Qfe7 Kg5 f8B Bf4 Nh5 Qd6 Q2e5 Be3 Qb5 Bd2 Ba1 b2 Be2 b1N Bd1 Bad5 Bc3 Bb7 Bb4 Bf4 c3 Nd2 Bb3 Nf1 Qe2 Ne7 g8R Bbc6 Bg7 Be3 Rb8 Neg8 Bh8 Bf4 g7 Bd2 Kc2 d3+ Kb2 Bf4 Qe7 d2 Rbb6 d1Q Kb1 Qd4 Kc2 Qf2+ Kd3 Qc2+ Kd4 Rg6 Qb7 Qh2 Bbc2 Ne7 g8R Qg2 Qd3 Kh6 Rb8 Neg8 Qe7 Qb5 Ba5 Qa4+ Rb4 Qh2 Qb5 Rg2 Kd3 Re2 Bd1 Ra2 Rb1 Be3 Bb4 Bg5 Be6 Kg6 Beg4 Bh6 Bb3 Kg5 Bf5 Qc2+
Q7/Rn2R1R1/1rr1n1bB/QbkN1P1R/1n6/2bBNKqB/2P3p1/1bbB4 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 g5 h4 e5 a4 Ke7 f4 d5 h6 b5 h5 b3 c6 Kd6 f6 g4 f7 b2 c7 g3 f5 d4 a5 e4 a6 d3+ Ke3 b4 a7 d2 h7 g2 h6 b3 Rh5 Nf6 Qf3 d1B Be2 Kc5 Nh3 Bd7 c8B Qc7 Nc3 b1N Bca6 b2 Bad3 Nc6 Nf4 Na3 Nfd5 Rc8 a8B Nb5 Ra7 b1B Qg3 Nd8 Qe5 Qb8 Bg4 Rc6 Bh3 Nb7 Qc7 Be2 Nd1 Be8 Qa5 Be7 f8R Bg6 Re8 Qg3+ Kd2 Bd6 Re7 Bf4+ N1e3 Rb8 h8R Bf1 h7 Bh6 Qa1 Nc7 Rg8 Ne6 h8Q Bg5 Rgg7 Bh6 Nf4 Nd5 Kd1 Nb4 Nfd5 Nbd8 Qa2 Rbb6 Bb7 Bf4 Bba6 Nb7 Qa8 Bg5 Be2 Bh6 Kd2 Bg5 Bd1 Bb5 Qa5 Bh4 Nc4 e3+ Ke2 Bg5 Bd2 Qc7 Kf3 e2 Bc1 e1B Bf4 Bd2 Nce3 Bf6 Bg5 Bfc3 Bh6 Bc1 Qa1 Ba4 Bd3 Bb5 Qa5 Qg3+
1N5R/nr3b1N/1nR1KpbN/b1B1QB2/1Bk5/q1PN1r1P/r2r2Q1/r1B5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 b4 a5 h6 d6 b6 a4 b5 g4 c3 a3 b7 g3 b6 g2 h7 a2 Qc2 d3 Nd2 Qe8 Nc4 d2 Nf3 d1R Ng5+ Ke7 e6 g1R Kf5 d5 e4 d4 e5 d3 Qg2 d2 Bd3 Ra7 Nb2 Nc6 b8N Nf6 b7 Bd7 Bb1 Ra6 Nd3 Nd5 Bc2 Rg8 h8B Rg7 Nh7 Na7 Rb1 a1R Rb6 R6a2 Rc6 Rg3 Bg7 f6 Bh6 Rge1 Be3 Nb6 Bc5+ Kd8 Bb4 Qe7 Bb1 Be8 Bc5 Bf7 Bc2 Qd6 e7+ Ke8 Bb4 Re4 Bc5 Rb4 Bb1 Bh5 Bc2 Kf7 e8N Ke7 Ng7 Be8 e6 Rbb1 Ke4 Rf3 Nf5+ Kd8 Nh6 Ke7 Bd4 Qa3 Bc5+ Kd8 Kd4 Bd6 Bb4 Bc7 Kc5 Bg6 e7+ Ke8 Ng8 Kf7 e8Q+ Kg7 Qe5 Kf7 Na6 Bd8 b8B Rbb2 Bd6 Rbb1 Qf4 Ke6 Qe5+ Kd7 Ng5 Nc4 Kd5 Rg3 Nf4 Rf3 Ba5 Rb7 Bab4 Ba5 Bdc5 Be8 Ke4 Nb6 Kf5 Re1 Be4 d1B Bc2 Re2 Nb8+ Kd8 Ke6 Rd2 Be4 Be2 Bb1 Bd3 Bc2 Bdg6 Bf5 Rc7 Nd3 Kc8 Re1 Kb7 Re4 Rh7 h3 Rd7 Rh4 Rf7 Nd7 Ka6 Rh8 Kb5 Nh6 Kc4 Nb8 Rb7 Nh7 Bef7+
K2nNR2/3BBb2/k1P2Q2/1pRrr2q/1r3nQb/P1r1R1r1/6QN/3R2Qn w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 e5 Ke3 b5 Ke4 g5 Kd5 d6 h4 Kd7 c4 Kc7 f4 Kb7 f6 g4 c6+ Ka7 h6 e4 f5 b3 h7 e3 h5 g3 c7 g2 a3 e2 h6 e1N f7 b2 c5 Qh4 f6 Qb4 Nd2 b1R Ne4 Bg7 f8Q Nc6 f7 Ka6 Nf3 g1R Rh3 Rg3 Nf6 Qh4 Bg5 Bd7 c8R Nd8 Nh2 Be8 Qg4 Rb4 Rd1 Qh5 Be2 Rc3 Re3 Nd3 Bf1 Ra7 Bh3 Nf2 Qg2 Rb7 Bd7 Nh1 Qe7 Rb8 f8R Bf7+ Qe6 Rb7 Ne8 Bf6 Bc6 Re7 Bd7 Nb7 Kc6 d5 Rc7 d4 Qeg4 Re5 Bh4 Bd8 Be7 Nf6 Qg1 Rg8 h8Q d3 h7 d2 Qhg7 Nd5 h8Q Nf4 Qhh6 Rh8 Qhf6 Rh6 Q4g2 Rg6 Rc8 Rg3 Qg8 Bb6 Qg4 Ba7 Kc7+ Bb6+ Kb8 Nd8 Be6 Bc7+ Ka8 Ba5 Bd7+ Bb6 Rc1 d1R Rc6 Rdd4 Rd6 Rdd5 c6 Rdc5 Rdd1 Rcd5 Rf3 Bf2 Re3 Rf3 Rc2 Bh4 Rcc1 Rg3 Rc2 Rcd3 Rc5 Rc3
2rB4/Bk1N1Q2/1PN2R2/PB3nrq/1n2pB1n/b1Q3bb/R1KQn3/4Q2n w - - 0 1 illegal: No proof kernel
K2q4/2Q3R1/1r1QQ3/BbN1r1bR/3NP3/r2nrpQ1/n1BNnP1b/1Nk5 w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 c4 h5 b6 a4 e6 a3 e3 h3 e7 a2 e8N h2 c6 h4 c7 h3 b7 Ne7+ Kc5 Ke4 Kb6 d5 g4 f5 c5 f4 g5 f3 c6 d4 g6 d3 g7 d2 g8Q Rh6 Qdb3 d1N Qg2 Nb2 Ne2 Nf5 Bd2 Na6 b8Q Nd3 Ba5 Be7 Ng7 Nd4 Qg3 Nab4 Ne6 Bd7 Kb7 Bg5 c8N Be8 c7 Bb5 Rg1 h1R Nb6 h2 c8Q Ra6 Qcc7 Rg6 N2f4 Ne2 Nd4 Re6 Rg2 Re5 Nc4 Rb6+ Ka8 Rg1 Nfe6 h1R Qd6 Rh7 Rh2 Re7 Rh5 Rh1 Bh3 Rc1 Qc8 Rc3 Qc2 Ra3 Qc1 Ne1 Ncd2+ Kd3 Qcc7 Re8 Nc6+ Kc2 Ncd4+ Kd1 Nc5 Kc1 Bf5 R8e7 Bc2 Ned3 Nc3+ Kb2 Rah1 a1B Ncb1 Na2 Rh7 Re8 R1h5 Kc1 Rg7 R5e6 Nc6 Be5 Nd4 Bef4 Qh3 Bh2 Qhg3 Re5 e4 R8e7 Q7b8 Reb7 Qce6 Rc7 Na6 Rcc3 Nc5 Ndb4 Qc7 Re3 Qcd6 Nd3 Qbc8 Qd7 Qcc7 Qd8+
3KB1B1/B2N4/krbr4/Pbb1R3/PQr2BQQ/q6n/1pr2R2/QNnn4 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 h5 a4 b5 f4 Kb7 g4 h3 d4 c4 d6 c3 g5 c2 f6 b4 d7 h2 Ke6 h4 f5 b3 g6 h3 d5 b2 g7 Nh6 g8B Na6 d6 Nb4 f7 Na2 f6 Nf5 Qd2 Ra6 Qb4+ Rb6 Bc4 Ne3 Nf3 Nd1 Ne5 Rh4 Rf1 h1B Rf2 h2 Bf4 c1R Bb5 Bc6 Qe4 h1N Qf5 Bh6 f8Q Rc2 f7 Nc1 Qg4 Bg5 Qh6 Qf8 Ra3 Ka7 Re3 Ba6 d8Q Bf6 Nd7 Bd4 Re5 Bc5 Qh7 Kb7 Qe4 Ka7 Qb4 Kb7 Bd3 Bab5 Bg6 Ka6 Qa3 Rh6 Qa1 Rc4 Nf6 Rc2 d7 Rh4 Qb8 Rh6 d8Q Rh4 Rf3 Nhf2 Nd7 Nh3 Rf2 Rh6 Kf5 e6+ Kf6 Qd6 f8B Qd3 Qbc7 Qa3 Qd6 Rc4 Ke7 Rc2 Ree2 e5 Be8 e4 Bg7 e3 Bd4 Bb4 Re1 e2 Qc5 Rd6 Qc3 Rb8 Ba7 Bc5 Qb4 Rb6 Qb8 Rf6+ Kd8 Re6 Qe5 Rd6 Qeh5 Rc4 Qhh4 Rc2 Ref1 e1R Re2 Rc4 Re5 Re2 Rf2 Rec2
7q/BQb2n2/2Npkrr1/1NQR1Nb1/5nr1/PP1BK2n/B4b2/2B2bRN w - - 0 1 illegal: No proof kernel
B2B2nN/2B1R1Q1/rnp1N1q1/2P1QBn1/1b1bP2K/k1r5/NN3b1R/1n5r w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 c4 Ke7 e4 d5 f4 a5 b4 h5 b6 h4 f5 d4 c5 d3 b7 h3 f6+ Kd7 g5 Kc6 f7 Kb5 g6 a4 e6 a3 g7 a2 e7 h2 e8N Qd5 Bg5 Be7 f8N Qd4 Nh3 g1N Nf2 g2 Nc3+ Kc4 b5 Kb4 b6 Bd6 Qg4 Ne7 g8B Ra7 Ne6 Qf6 Nfd1 Rh3 Nb2 Be5 Nd6 Ra6 Nf7 Qg6 Kf2 d2 Nh8 Nd7 b8Q Ka3 b7 Nf3 Bh7 Bg7 Bc4 Nb6 Bd5 Ng8 Bd8 Ng5 Raf1 a1B Na2 g1B+ Kg2 d1N Rf7 Ra4 Re7 Rc3 Bc6 Be3 Kg3 Ra6 Kh4 Bgd4 Qg3 Bg1 Qe5 Bge3 Qa7 Bd2 b8B Bf2+ Kg4 Bde1 Ba8 c6 Bbc7 Bd2 Rg1 h1R Rg2 Rch3 Qb7 Bb4 Rh2 Nc3 Qa7 Rg3+ Kh4 Nb1 Qb7 Qg7 Bf5 Qg6 Nd1 Bad4 Nb2 Ra5 Qa6 Ra4 Qe2 Ra7 Qg4 Rc3+ Qgg3 Ra6 Qg7 Bg1 Q3e5 Bgf2+
2r4K/5k2/NPQ2b1Q/3Rrnnb/BQ3b1p/5Q2/Nn1R1rRP/B2n1q1R w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 a5 Ke3 h5 Ke4 g5 Kf5 d5+ Kg6 g3 f4 g2 c4 g4 e4 a4 b6 h4 f5 a3 f6 a2 e6 g3 e7 d4 e5 d3 f7+ Kd7 e8R d2 e6+ Kc6 e7 Kd7 c6+ Ke6 c5 Qd6 c7 Qf4 c6 Nd7 Nh3 g1N Rd8 g2 e8R+ Be7 Kg7 Qe3 f8Q Ra6 Nc3 Qe2 Nf2 Nf3 Nfe4 g1B Bb2 Nc5 Rd5 Ra5 Red8 Nd3 Qa4 d1N Qb4 Ng5 Qf3 Bd7 c8Q Nh6 c7 Be3 Qb7 Qg2 c8Q Bf4 Rb1 a1R Na2 Qf2 Qc1 Be8 Bg2 Bh5 Qbc6+ Bed6 Bc3 Qf1 Rb2 Rc5 Rd2 N3b2 Rg8 Ke7 Bh3 Bc7 Bd7 Bd8 Be8 Nhf7 Qh6 Nd6 Ba4 Rb1 Bd4 Rb5 Qc6 Rc1 Qfa3 Rc2 Qf3 Ra5 Nc5 Rb5 Rg2 Rf2 Na6 Ra5 Rf8 Rc5 Rf6 Rf8 Rg6 Rf5 Rf6 Re5 Kh8 Nf5 Rfd6 Kf7 Bc3 Nc4 Ba1 Ncb2 Rd2 Rc2 R6d5 Rc3 Qa8 Rc8 Qac6 Bf6#
1Q1rN3/1QQN2Pr/rB4Q1/PB6/2q2b1B/nb2RnbR/4p1nb/2K1kB2 w - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 f4 Kf7 g4 Kg6 d4 h5 Kd2 c5 a4 b5 a6 e5 a5 e3+ Kc2 c4 a7 e4 d6 e2 d7 e1B d5 c3 d6 h4 Qd3 h3 Nd2 b4 Nc4 h2 Be3 b3+ Kc1 c2 Nf3 Qc7 d8B Nh6 d7 Nc6 Ra3 Nd4 Nd6 Qc4 Ne8 Nhf5 Bf2 e3 Bh4 e2 Bb6 Rh6 d8Q Bd6 Qc7 Bg3 Qe4 Bd7 Qeb7 Rd8 a8B Ne3 f5+ Kh7 f6 Kg6 f7 b2+ Kd2 b1N+ Kc1 Ng2 f8Q Ba4 Re3 Na3 Qf4 Bb3 Qcb8 Bc7 Ne5+ Kh7 Nd7 Kg6 Qe5 Nf3 Qe7 Bcf4 Q7c7 Be5 Bc6 Bd6 Bb5 Bde5 Rg1 h1R Qcb7 Rh3 Rh1 Bh2 Qc5 Bef4 Qcc7 Rh7 Be1 R3h6 Bh4 Bhg3 Rh3 Bh2 Bc5 Bfg3 Ba7 Kf7 Bd4 Ra6 Bb6 Kg6 Nd6 Kg7 g6 Kh6 g5+ Kh5 g7 Kg4 g8Q Kf4 g6 Kg4 g7 Kf4 Qe8 Kg4 Kb2 c1B+ Ka1 Bd2 Kb2 Kf4 Re5 Kg4 Qg6+ Bg5 Ne8 Kf4 Rc5+ Ke3 Re5+ Kd2 Re7 Ke1 Re3 Qa4 Kc1 Bf4 Q8c8 Qb4 Q8b8 Qc4+
1Q1QBkn1/1b1Pp3/6Bq/3Q1P1r/1b1n3R/r1n1rR1N/b2Q3b/2BK1NB1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 h5 b4 a5 d4 c5 f4 c4 g5 h3 d6 h4 b6 h2 b7 c3 d5 c2 b5 h3 b6 a4 g6 a3 f6 a2 g7 Be6 f7+ Kd7 f5 Ra4 Bb5+ Nc6 b8Q Rh5 b7 Ra7 Nd2 Ra3 Nf1 Qb6 Qd2 Qa6 Rb1 a1B Rb3 Be5 Rf3 Bc3 Qa8 Bb4 b8B Kd8 d7 Nd4 Qb7 Qd6 Ba7 Qf4 Bb2 c1N Kd1 Na2 Bc1 Qh6 Bc5 Nf6 g8B Bg7 Bh7 Ng8 Bg6 Nc3+ Ke1 Be5 Qa8+ Kc7 f8Q Bf4 Ba7 Kd6 d8Q+ Ke5 d6 Ba2 Bf7 Kf6 Qd5 Be5 Qfe8 Kg7 Bg6 Bf4 Qb8 Be5 Qec8 Bf4 Bbe8 Kf8 d7 Be5 Ne2 Bc7 Nf4 Be5 Rg1 h1R Qd8 h2 Rg4 Rg1 Bc5 h1B Nh3 Bh2 Rh4 Rg3 Ba7 Ne6 Bg1 Nd4 Rff4 Ncb5 Kd1 Rge3 Qdb7 Bc6 Rf3 Bcd5 Qc6 Be4 Qe6 Bb7 Qd5 Nc3+
1rk2q1R/2rp3R/1nn1B1P1/1B3QQQ/1P4n1/1r1NB1b1/B2NK2b/rb4Q1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 g4 e5 f4 h5 b4 a4 g6 e4 g5 e3 b6 e2 f6 d3 f7+ Ke7 b7 h4 c5 h3 g7 h2 g6 a3 c6 a2 f5 Rh3 c7 Rh5 f6+ Ke6 Nf3 Nc6 b8Q Ba6 c8B Rh3 Qg3 Bd6 f8Q Nh6 f7 Ng4 g8B Rb8 Qh6 Ke7 Qg1 Qf8 Be3 Kd8 Bb7 Bc7 Ba8 Kc8 Nbd2 Bc4 Rb1 a1R Ne5 Ba2 Qg5 Bd6 Rb2 Bb1 Rc2 Ra7 Rb2 Rc7 Ra2 Nd4 Bd5 Nc6 Ra8 Rg3 Ba2 Rf3 Qb3 Rh3 Qd5 Rg3 Ne4 Rf3 Kd2 e1B+ Kd1 d2 Nd3 Rg3 Ke2 d1N Nd2 Nb2 Qh5 Bf4 Qdg5 Na4 Be6 Nb6 Ba2 Qe8 f8Q Be5 Qff5 Qf8 Bgc4 Rh3 Bb5 B1g3 Bg2 Bef4 Bgd5 Bd6 Be6 Bde5 Qg2 Bd6 Rf1 h1R Qg1 Bh2 Rf4 Nge5 Rh4 Ng4 Qh8 Rf3 Rh7 Bdg3 Qhe5 Rf1 Qh8 Rc1 Qhe5 Rc3 Qh5 Rb3 Qfg5 Nf2 Qef5 Ng4 Qe4 Qh8 Qhh6 Bc2 Qgh5 Kb7 Q5g5 Rbc8 Qf2 Ra1 Qhh5 Bb1 Qg1 Rg8 Rf8 Qg7 Qef5 Qh6 Rf6 Rb8 Rf8 Qg7 Rg8 Qf8 Rgh8 Kc8
B2Q1r1N/1Pn1nB1K/4b1N1/1n1rP1k1/1b1q1Nr1/2b2Qb1/B1pR4/BR5N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Ke7 Kg3 a5 Kf4 c5 b4 h5 d4 f5 g4 h4 e4 c3 e6 h3 g6 Kf6 b6 a4 b7 c2 b5 c4 b6 h2 g5+ Ke7 e5 c3 g7 a3 d5 a2 d6+ Ke8 e7 Kf7 e8B+ Ke6 d7 Bc5 g6 Ra7 Bb2 c1B+ Nd2 c2 Rb1 a1B Bg2 Nc6 b8Q Bb4 Ne2 Nf6 Kg5 f4 g8N f3 g7 f2 Kg6 f1N Ne7 Rf8 Ne4 Nd4 Nf2 Ng3 Ba8 Ngf5 b7 Nd5 Kh7 Bf4 Ng6 Nfe7 g8B+ Kf5 Bef7 Bg3 Nef4 Nc7 Qf3 Ra4 Rhd1 Ndb5 Nh1 Kg5 Rd2 Ra5 Bd4 Bac3 Ba2 Qe8 d8N Be6 Bf7 Qd7 Nc6 Qd5 Nh8 Ra4 Ba7 Qd4 Qd8 Ba5 Bc5 Rc4 Ba3 Bab4 Bb2 Rc5 Ba1 Rd5 Nfg6 Qf2 Nd4 Qg1 Ne2 Qd4 Nf2 h1R+ Nh4 Qb6 Nf4 Rg1 Nh4g6 Qd4 Nh1 Bh4 Qf2 Rg4 Qf3 Bg3
3K2QN/PQB1rRb1/PN1pN1b1/4k3/1Q3n2/1Nq2rnB/2Qn1R2/4rb1n w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 g5 f4 e5 a4 b5 c4 d3 h4 d2 h6 e4 c5 b4 c6 e3 a6 b3 h5 e2 a5 e1R c7 b2 h7 Re3 h6 Rh3 a7 Ba3 a6 Bb4 Rh2 Rb3 Na3 b1N Nc4 Bc3 Rf2 Nc6 Qc2 d1B+ Ne2 Nd2 Nb6 Nce7 Bh3 Nd5 Ra4 Bb7 c8Q Qc7 Ra3 Bc6 Qb7 Nge7 Kh5 g4 Nd4 Rhe8 h8N Bb2 h7 Rf3 Nb3 g3 Ra4 g2 Kh4 Kg7 Kg5 g1N Ra2 Be2 f6+ Kf8 f5 Bf1 f7 Kg7 f8N Ne2 Ra4 Ng3 Rf4 Ba1 Ba3 Nh1 Bd6 Qc8 Bc7 Rb8 Kh4 Kf6 Ne6 Bcb5 Kh5 Bbd3 Kg4 Nc3 Kh5 Nce4 Kh4 Nd5 Kh5 Ke7 Kg6 Neg3 Kg5 Bg7 Kg6 Rf8 Kg5 Rf7 f6+ Ke8 Rf5 Re7 Rf4 Nge4+ Kf5 Neg3+ Ke5 Be4 Kd6 Bg6 Nbd4 Ra8 Nd8 Bf5 f7+ Kf8 Nb3 Rd3 Bb8 Qc3 Bc7 Re1 R4f3 Bd4 Ng6+ Kg7 Rf4 Kf6 h8Q+ Kg5 f8Q Rf3 Qhg8 Bg7 Nh8 Bg6 Rf7 Nf4 Nc6 Rae8 Nd8 Bd4 Qe7+ Bf6 Qee4 Bg7 Qb4 R8e3 Be6 R3e2 Ke7 d6 Kd7 Re5 Bh3 Re8 Bg2 Kg4 Ne6 Re7+ Kd8 Bf6 Qc1 Kf5 Bh3+ Ke5 Qc2 Bg7
k2rQ2b/1N3rr1/rBNKR3/1N1b1N2/R6Q/Rq1RP1p1/4B2P/qr2n2n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 g5 Ke4 a5 Ke5 c5 b4 Kc7 d4 Kb7 d6 f5 b6 g4 b5 c4 d5 c3 h6 c2 e3 a4 d7 g3 d6 f3 h7 f2 Ne2 a3 Bd2 c1R Nbc3 a2 Qa4 f4 Nd4 f3 Be2 f1R Nf5 f2 Qh4 Ra6 Be1 Qg5 d8R Be6 d7 Bg7+ Kd6 Nc6 Re8 Ne5 d8N+ Ka8 Nb7+ Bc8 Bd2 Rb1 Re6 Nf3 Rg1 Rfc1 Rd1 f1R Be1 Qg6 Rd3 Nf6 Bd2 Rg8 h8Q Rcd1 Q8h5 Qh6 Qe8 Ng4 Nd8 Qf6 Kc7 Ng5 b7+ Ka7 b8N Rf4 b6+ Ka8 b7+ Ka7 Nd6 Nf3 Rd4 Bh8 Ra4 Nf2 Be1 Qd4 Bd2 Rf6 Nf5 Nh1 Be1 Qb4 Bd2 Rb2 Be1 Rdd2 Rd1 Rd6 Rd3 a1Q Ra3 Bd7 Bd2 Bc6 Be1 Bd5 Ra4 Ra5 Nbc6+ Ka6 b8R Rb1 Ra3 Qb3 Rb4 Rff8 Bd2 Ne1 Nb7 Rd8 Rba4 Rg4 Nb5 Rg7+ Qd7 Rff7 Kd6 Kb6 Bc3 Rb8 Qe8 Ra6 Nc5 Rc8 Bd4 Rb8 Nd7+ Kb7 Bb6 Rc8 Nc5+ Ka8 Nb7 Rd8+
1n1K4/2Q1B3/k2nQ3/1r2nR2/NBR1nq2/PpbrPR1b/1BR1N1n1/3q3B w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 b5 Kd4 g5 h4 f5 a3 g4 d6 Kc6 e3 Kb6 Kd5 c5 d4 g3 h6 c4 d7 c3 Ke6 f4 d5 g2 h5 b3 d6 f3 h7 f2 h6 b2 Rh4 c2 Bd2 c1N Qc2 b4 Ra2 b3 Ne2 g1N Bg2 f1Q Rc4 Nc6 Nbc3 b1N Na4+ Kb5 Bh1 Nd3 Bb4 Ka6 Qc3 Ra7 Rc2 Nf4+ Kf7 Bb7 e6 Bg7 e7 Nd2 e8Q Bc8 Qe6 Ne4 Qce5 Qc7 Ke8 Nb8 d8B Ng2 Be7 Rb7 d7+ Rb6 d8R Qd1 Rdd4 Nf3 Rd5 Bf6 Qf4 Bc3 Rf5 Ne5 Qh2 Qcd6 Qg3 Bd7+ Kd8 Rb5 Qg7 Nef6 Qg3 Ne8 Qf4 Ngf6 Qg3 Rf8 h8R Ne4 h7 Rf6 Rf8 Rh6 h8B Rh4 Nb6 Q6d4 Na4+ N8d6 Rf3 Bc8 R8f5 Rh7 Bh4 Rc7 Qg7 Rcc5 Qc7 Rd5 Rc5 Qc4 Be7 Rd3 Bhf6 Ng3 Bh8 Qf4 Rc4 Ne4 Rd2 Ned7 Bd4 Ne5 Rc2 Bd2 Ba1 Bc3 Bb2 Qg3 Rh5 Nf6 Qd5 Bh3 Qe6 Qf4 Rf5 Ne4
1N3n1r/1N1Q4/n3N1Nk/1Rp2q2/QB1bB1B1/2PBnRqK/r1n1P2b/5n2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 b4 Kf7 f4 Kg6 b6 c5 c3 d5 e6 a5 e7 h5 e8B+ Kg7 b5 h4 b7 a4 b6 d4 f5 h3 f6+ Kh7 f7 h2 g5 a3 g6+ Kg7 Bd7 d3 Nd2 a2 Ba3 Ra4 Bb4 Qh4 Bg4 Ra5 Nb3 Ra3 Rb1 a1Q Na5 Na6 b8Q Ra4 b7 Nf6 Nh3 g1N Qe8 Nh7 b8N Ra2 Nb7 Kh6 g7 Bd6 g8B Nf8 Bg2 d2+ Kf1 Nf3 Qda4 d1N Nf4 Ne1 Bh7 Nc2 Qed7 Qg5 Rb3 Qb1 Bd3 Qg8 Rg1 h1N Ng6 Be5 Bd5 Bd4 Kg2 Nde3+ Kh3 g2 B5e4 Ng3 Rf1 g1B Rf3 Ngf1 Rb2 Bh2 Rb3 Nh7 f8N Qg7 Ne6 Nf8 Ba3 Qe5 Rb5 Qf5 Bb4 Qe1 Nbd8 Qf2 Nb7 Qg3+
3KB1Nn/1r2rqR1/PPBrq3/2Q2B1b/QBr1n2k/4R1b1/2N2p2/Q4Qr1 w - - 0 1 illegal: No possible last move, all moves rejected
2n1n3/Bk4P1/nq1b1RN1/p4K1N/r1P1r1Q1/2B1R1R1/qR3Qn1/B2bn2B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 d5 b4 Kd7 f4 Kc7 g4 h5 c4 e5 g6 h4 g7 h3 b6+ Kb7 f6 h2 b5 Ra7 f5 Rh6 g5 Na6 g6 Nb8 f7 Nc6 f6 Nge7 g8R Nf5 Nh3 Nd6 Nc3 Rh4 Bg2 Re4 Qg4 Ne8 Ne2 Nb8 Rf1 h1Q Ra3 Qh2 Bd2 Bd6 f8Q Na6 f7 Ra8 Ng3 Rb8 Nh5 Bd7 Qd1 Bg4 Bh1 Qf6 Be1 Qa2 N3f4 Bf3 Bc3 Qd8 Qc2 Bd1 Qg7 Qc7 Rf2 Qc6 f8R+ Qc7 Kd2 d3 Rf6 d4 Re2 Ra8 Qd7 Rb8 Qg4 Qc5 g7 Qb4 Re3 Qc5 Ke1 d2+ Kf2 d3 Kg3 Ka8 Re1 Nec7 Rc8 Ne8 Bd4 Bf3 Qg5 d1N Rc6 d2 Qg4 Ne3 Ng6 d1N Ba1 Nb2 Qf2 Bd1 b7+ Ka7 Rc3 Na4 Rb6 Rd4 Kh4 Rf4 Kg5 Ng2 Rg3 Qd4 Re2 e4 Re1 e3 Bc3 Re4 Kf5 Qd3 Ba1 Qdb1 Re2 Rc8 b8B+ Ka8 Ba7 Rb8 Rb7 Nb6 Re1 Nc8 b6 Qbb2 Re2 Qd4 Rb2 e2 Re7 e1N Re5 Re3 Re4 Rb7 Re5 Ra3 Ree3 Re7 Rc2 Kb7 Rb2 Kc6 b7 Ra4 b8B Re4 Kg5 Qb6 Kf5 Kb7 Bc7 Bc5 Be5 Ba3 Bc3 Bd6
RNR1nrqN/1b3P2/q2bBrn1/q5PN/1q2K2k/B2Q1p2/1Q6/NBqB4 w - - 0 1 illegal: No possible last move
1Qq4q/RBQpPR1n/8/bN1B2BQ/1r2BN2/1n1Kn3/2n1n1QP/kbr5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 Ke6 c4 g5 e4 f5 h6 a5 h7 a4 c5 d3 b6 a3 b5 a2 c6 f4 c7 f3 b7 g4 b6 g3 Na3 g2 Qe1 f2 Kc3 d2 Be2 d1N+ Kd3 f1Q Qd2 Qff6 Nb5 Na6 b8Q Ne3 b7 Bb4 Nh3 g1N Bf3 Ba5 Qg2 Ne2 Rf1 Qh6 Qa7 Nf6 b8Q Bb7 c8B Qhf8 Qc7 Rb8 Rf2 Rg8 h8Q Nh7 Rf1 Bd5 Bb7 Qc8 Bd2 Rg5 Qac5 Qg7 Qhd8 Qh8 Nf4+ Kf7 e6+ Kg7 e7 Kf6 Qh1 Rg1 e5+ Kf5 Rf2 Rc1 e8B Bf7 Qg2 Bg6 Bbd5 Rb7 e6 Rb6 Rb1 a1N e7 Nb3 Ra1 Rb8 Bef7 Kf6+ Bde4 Rb6 Nd6 Rb4 Bd5 Ke5 Qe8 Nb8 Q5a7 Nc6 Qab8 Ncd4 Bb7 Bf5 Qh5 Ndc2 Nb5+ Kf6 Ng6 Bb6 Ra7 Nd1 Bg5+ Ke6 Rf1 Ba5 Rf2 Ncd4 Rf1 Na1 Kd2 Ne3 Bec6 Bb1 Bf4 Nac2 Kd3 Kf6 Bg5+ Kf5 Qd8 Nb3 Bfe4+ Ke6 Nc7+ Kd6 Bcd5 Kc5 Rf5 Rg1 Nf4 Rc1 Na8 Kb5 Nc7+ Ka4 Rf7 Ka3 Nb5+ Kb2 Qdc7 Ka1
3q1NKr/PB3pN1/R2B1N2/1Nbn2kb/1bb1R1Pb/6nQ/4r1B1/q2B1Q2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 Ke7 Ke3 h5 Ke4 b5 a4 c5 d4 b4 g4 b3 d5 b2 g6 c3 g7 h4 a6 c4 a7 h3 a5 c2 a6 h2 d6+ Ke6 d7 c3 Nf3 Rh6 Nd4+ Ke7 Kf5 Rh4 e4 Rh8 e6 Qa5+ e5 Qc5 Na3 b1B Bg2 Qb4 Nab5 Rh3 Bf4 Rh8 Re1 c1B+ Re4 h1Q Qf1 c2 d8N Nf6 g8Q Qc3 Qh7 Nd5 Qh3 Nd7 Bh2 Rb8 a8B Bd2 a7 c1B Ra6 Nc5 Bb7 Qa5 Bf4 Qa1 Kg5 Bb4 Nf5+ Ke8 e7 Be6 Ng7+ Kd7 e8B+ Ke7 Re1 Bg6 Re4 Bh5 Bec6 Ra8 Bf3 Bcd2 Bd1 Be1 Bh2 Qg1 Bf4 Qgd4 Bh2 Rg8 Kh6 Bh4 Kh7 Qd3 Ne8 Rg6 Ng7 Rf6 Kh8 Rf2 Kg8 Re2 Bg3 Bf5 e6 Kf6 e7 Kg5 e8N Be6 Bd6 Qdd4 Rf4 Ne4 Nf6 Ng3 Re4 Rc8 Ba8 Bc5 Bcb7 Qd3 Nc6 Qd2 Ne7 Qda5 Ng6 Qd8 Be5 Bfe7+ Nf8 Bb4 Bc7 Bec5 Bd6 Nf4 Rd4 Bc4 Bg2 Nd5 Re4 Rc7 Bc6 Re7 Bb7 Re6 Nfe8 Rh6 Nf6 Rh8+
2Q2qk1/1bNnR1bR/2Qb2B1/3N1QqK/1N1n2r1/q4pN1/P3qBP1/r6Q w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 c5 Kg3 b5 Kh4 h5 e4 f5 d4 Kf7 d6 b3 d5 c4 d7 b4 d6 f4 Ne2 c3 Be3 c2 Ng3 c1B Nc3 f3 Bf2 b2 Bd3 b1Q e6+ Kg7 e7 b3 e8Q b2 e5 Nh6 e6 Ra4+ Be4 Qd3 e7 b1Q g6 Qb4 Rh3 Qda5 d8Q Bb7 d7 Ba3 Qc2 Qac5 Re1 Nf5+ Kg5 h4 Qc8 Bb2 d8N Qa3 Nc6 Qd1 Rhh1 h3 Rh2 Rc4 Nb4 Qd8 Qea4 Nd7 Qac6 Qd5 Re3 Qd1 Kg4 Qe2 Qd1 Rh6 e8N+ Kh8 Qc2 Bd6 Nc7 Qf8 g7+ Kh7 N3d5 Rg6+ Kh5 Rg4 Bd3 Rc3 Re7 Rb3 Be4 Bbe5 Rh1 Rb1 Qc1 Ra1 Bb1 Rh4+ Kg5 Re4 Qf4 Nd4 Kg4 Kg6 g8Q+ Bg7 Qf7+ Kh7 Qh5+ Kg8 Kg5 Re6 Bg6 Re4 Qf5 h2 Nf1 Bde5 Rg1 h1Q Ng3 Rf4 Rb1 Qhe1 Qh2 Q1d2 Rh1 Qde3 Qg1 Q3d2 Rh7 Rg4+ Kh5 Bd6 Qh1 Qg5+
Rq3Q2/1N1b4/b4n1R/1R1QB2N/k1rqb2p/N1b3P1/3r2P1/n1NrRBK1 w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 g5 a4 e5 axb5 exf4 Ra5 g4 Ra1 g3 hxg3 Qg5 Qa4 Qe7 Qd1 Qd8 Kf2 Kd7 b4 h5 d4 a5 e4 c5 d6 f5 d5 a4 e5 c4 b6 a3 b5 h4 b7 f3 b6 c3 Be2 f4 Rh3 c2 Bf1 a2 Na3 Bg7 Ne2 Nc6 b8R Nd4 b7 Ra4 Rh1 Nb3 Kg1 Rc4 Ra8 Nf6 Bb2 c1R b8R Rf8 Qd4 Rd1 Rb5 Re8 Rb1 a1Q Nc1 Qb6 Qc5 Qb8 Bc3 Rd8 e6+ Ke8 e7 Kd7 e8N f2+ Kh2 f3 Be5 Bh8 Ng7 Qd4 Nh5 Na1 Rb6 Bb7 R1b5 Bc6 Be2 Rd2 Re1 f1B Qb4 f2 Qa5 Ke8 d7+ Ke7 d6+ Ke6 Rb4 Be4 R4b5 Bg7 Bd3 Be2 Rc6 Bg4 Bf1 Rd1 Qd2 Bgf5 Qh6 Bh8 Qf8 Rd2 Rb2 Kd5 Rcb6 Kc5 R2b4 Rc8 d8N Bd7 Rba6 Rd1 Rb7 Rc2 Rb1 Rb2 Nb7+ Kb4 Kh1 Rc4 Rb6+ Bb5 Rc6 Ba6 d7+ Ka4 d8Q Rbd2 Rb5 Bg7 Qd5 Bh8 Bd3 f1B Rd6 Be2 Rdb6 Bg4 Bf1 Ne8 Rh6 Bd7 Bd6 Be5 Kh2 Nf6 Bc7 Qd3 Kg1 Bc3 Be5 Qd4+
2b1n1rb/3N1knB/1R1Qr3/N6R/RBRP2Br/1q4q1/bQp4P/3KB2r w - - 0 1 illegal: No possible last move, all moves rejected
Qrr1N3/3r1q2/3n3q/2Q3K1/2P1QB2/p4PQN/1RNN1bBR/1b1k1rbn w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 Kf6 b4 Ke5 c4 Ke4 f6 g5 h6 e5 b6 a5 b7 d5 b5 g4 b6 d3 h5 d4 f7 g3 h7 a4 h6 g2 Na3 Qd5 Rh5 Na6 b8Q Bc5 f8N Nc7 b7 Nf6 Rb1 Qf7 Rb5 Bf5 Qc2 Nce8 Ne6 Ng4 Qa7 Nd6 b8Q Rc8 Nf3 g1B h8Q Bg6 Qbc7 Rab8 Ng7 Kf4 h7 e4 Rh2 e3+ Ke1 d2+ Ke2 d1R Rb2 Bf5 Bg2 Rf1 Nd2 Bg6 f3 Nf2 Qg8 Nh1 Qe4+ Kg3 Kd3 Kf2 h8N Ke1 Ne8 e2 Nc2+ Kd1 Qa8 e1Q Qca7 Bh7 Qg3 a3 Ng6 Qf2 Nf4 Qe1 Qgg6 Qh4 Qg3 Qh6 Nh3 Bb4 Nb1 Be1 Qc5 Bef2 Nd2 Qff6 Nb1 Nf5 Ne1 Qf7 Qeb7 Bg6 Ke4 d3 Bf4 d2 Qbe7 Kc1 Qeb7 Ne3+ Ke5 d1R Qbc6 Bc2 Qe4 Rd7 Nd2 Bb1 Nc2 Nf5 Bg5 Rd4 Kf4 Kd1 Kg4 Rd7 Bf4 Qhf8 Kg5 Nd6 Qg4 Qh8 Qg3 Qh6+
KN2R1Q1/R6B/1r2R1N1/R1nb1q2/1P1knrn1/1pqnb1Q1/q1PB4/2BB4 w - - 0 1 illegal: No proof kernel
qr3B2/qNQ2QK1/1n1rb2n/7n/BpRb4/3QR1PP/k1B2QN1/r1nB4 w - - 0 1 illegal: No proof kernel
2rrQ2R/3n2N1/R1qR2Q1/Nqr5/1p1bR1rQ/1Pq2QK1/n2P1B2/1kb4B w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 exf5 b4 Qc2 Bd7 Qd1 Bb5 axb5 Bh6 Qg4 Bg7 Qd1 Bf8 g4 Kd7 f4 Kd6 Kf2 Kc5 b6 Kd4 b3 c5 d6 h5 f6 a5 f5 e5 g5 a4 d7 c4 f7 a3 f6 a2 g6 c3 b7 h3 g7 e4 Bb5 e3+ Kf3 h2 Bb2 e2 Qe1 h4 Ba6 h3 Na3 Bc5 f8Q Qe8 d8Q+ Nd7 b8R Ne7 g8Q Nd5 Nc4 Kd3 f7 Kc2 Kg3 Bd4 Rb6 Rc8 Qh4 Rd8 Qf2 e1R Na5 Re4 Nf3 Rf4 Rhe1 h1Q Ng5 h2 Qg6+ Qhe4 Re3 h1R Ne6 Rc1 Qf3 Qd3 Re4 Qb5 Ng7 Rc8 Rb1 a1Q Rd6 Qe6 Qfe7 Rhd8 f8R Qf6 Bb7 Qaa4 Kh2 Qc6 Kh3 Qab5 Ra1 Qe5 Ra3 Kb1 Rh8 c2 Kg3 Nc3 Qee8 Na2 Bc3 Bb6 Ra4 Qec5 Bd4 Qc3 Be3 Bd4 Bf2 Rd1 Nc4 c1B Ra6 Rh1 Na5 Rh2 Qhg5 Rh5 Qh4 Qcb6 Bd5 Q6c6 Bc4 Rc5 Bf1 Qc2 Bg2 Qc3 Bh1 Rg4+
2Bkr1QN/R2qN2B/2bB4/1qn2p1q/1P1KNP1r/b2qn3/4N3/3BRQ1n w - - 0 1 legal: proof: d4 b5 h4 e5 dxe5 c5 b3 g5 a3 b4 axb4 c4 bxc4 gxh4 Kd2 f5 Kc3 a5 g4 h5 e4 d5 g5 h3 e6 a4 e5 a3 e7 h2 c5 h4 c6 a2 g6 h3 g7 Rh4 c7 Rg4 Bf4 Ba6 c8N Rg2 Nd2 Nf6 g8B Rg4 Bh7 Bg7 Be2 Bb5 Ne4 Na6 f3 Kd7 e8N Qb6 Ne8d6 d4+ Kb2 d3 Kc3 d2 e6+ Kc7 e7 Qb8 Qe1 d1Q e8Q Bd7 Be5 Qb5 f4 Bh8 Qg8 Nd5+ Kb3 Ne3 Kc3 Qb1 Ne7 Re8 Bd1 Kd8 Ne2 Bg7 Rg1 h1Q Qf2 h2 Re1 Qf3 Qg2 h1N Qf1 Qa5 Kd3 Rh4 Kc3 Qh5 Kd3 Qb2 c4 Qb1+ Kc3 Bh8 c5 Qb5 c6 Nc5 Nd4 Bc8 Ne2 Bb7 c7+ Kd7 c8B+ Kd8 Ng5 Bc6 Nde4 Bg7 Ba4 Qd1 Bb3 Qd7 Bd1 Bh6 Bd6 Bf8 Rb1 a1Q+ Rb2 Qb1 Ra2 Bh6 Ra7 Bf8 Nf3 Bg7+ Ne5 Bh6 N5g6 Bg7+ Kd2 Bb2 Nh8 Bc1+ Kc3 Ba3 Kd4 Q1d3+
r1BK2nQ/5Q1R/q3B1bb/R2pN2q/3N3r/b1N1P2B/1B1nP1q1/1Nb3k1 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 g3 e4 g4 e3 fxe3 hxg4 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 a5 h4 g5 c4 a4 b4 g3 h5 Kg4 c6 f5 h6 a3 h7 a2 b6 f4 b5 f3 c7 g2 c5 Kg3 b7 Kf2 b6 g4 c6 g3 Qc2 Bh6 Kd6 Qg5 Qc4 Na6 b8N Nc5 b7 Nb3 Nc3 Nd2 Bb2 Qg4 Qf7 Qh5 Rd1 a1Q Rh4 Qa6 Ra1 Nf6 Ke7 d5 Rh2 Bf5 c8B Bg6 c7 Ng8+ Ke8 Bf8 Ra5 Ba3 Ba1 Bc1 Bb2 Ke1 Kd8 f2 Nh3 g1B Nb1 g2 Ng5 Be4 Nc6 Bg6 Rh3 Bh2 b8N g1B Nd7 Bf4 Ne4 Bh6 Nec3 Bh2 Nd4 Bd6 Ne5 Ba3 Bg2 f1Q Rh2 Bhf8 Bh3 Bh6 Be6 Qg2 Bh3 Ra7 Bce6 Ra8+ c8B Ne7+ Qg8 Kf2 Qf8+ Kg1 Qe8 Rf8 h8Q Rf4 Qf7 Ng8 Bhf5 Qhf3 Rh5 Rh4 Bh3 Bf4 Rh6 Qh5 Rh7 Bh6
B2B2R1/nb1nNNB1/1QQ2QK1/3p4/1Qq2n2/1P1PR1qB/1r1b2q1/q1r2k2 w - - 0 1 illegal: No possible last move
bR3RQ1/KNrB2n1/R7/qrP1NNB1/2N2q2/1pb1n3/qQ1RPb1b/4k3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 e5 dxc5 Rh6 fxe5 Rh8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 h4 d5 a4 g5 c4 b5 h5 b4 a6 b3 a5 g3 a7 Kg4 h6 f5 a6 g2 e6 Kg3 h7 Kf2 e7 f4 e8R g4 c6 f3 c7 g3 c5 Ne7 Ra4 Bb7 c8N Qa5 Qd2 Nd7 Nd6 Ne5 Na3 Ng4 Qb2 Ne3 Nac4 Rc8 a8R Rc7 a7 Ke1 Rab8 f2 Nf5 Ba8 Ncd6 Bh6 Nb7 Bg7+ Kd3 d4 Rf8 Rg8 h8Q Be5 Ke4 d3 Qh7 Rh8 Qg8 d2 Ra3 Bc3 Nf3+ Kd1 Rh7 g1B Ne5 Ke1 Bh3 f1Q Ra2 d1Q Rh6 g2 Ra6 Bf2 Bg4 Nc4 Bg5 g1B Bh3 Qa1 Bg4 Nc6 Kd5 Nd4 Bh3 Ne6 Bg4 Rch7 Kc6 Ne3 Bh3 Ng7 Bg4 Qa4+ Kb6 Bh2 Qc1+ Nd1 Na5 Qh3 Nh6 Be4 a8N Bfg3 Rb7 Qe8 Qf7 Qh4 Ka7 Qb5 Rd8 Ne6 Nb6 Bf2 Rad2 Qa2 Qb2 Ne3 Nbc4 Re8 Qg6 Rc7 Qg8 Ng7 Bd7 Qf4 Nf5 Re6 Rf8 Rb6 Nac6 Qba5 Nd8 Rcc6 Rb8 Rb5 Rd5 Rc8 Rd2 Ba8 Nb7 Rc7
8/2NB1Kn1/Rb1b2Bk/1P3n2/1r2qqnB/1NPp2B1/bN1n2R1/Q1r1N1Q1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 Kg7 Kc4 a5 Kd5 e5 g4 h5 b4 d3 f4 d2 f6+ Kh7 f5 d6 c3 a4 g6+ Kh6 g7 a3 g5+ Kh7 b6 e4 b5 a2 b7 h4 f7 e3 f6 e2 g6+ Kh6 Bh3 e1B Bd7 h3 Ke6 h2 Nf3 d5 Rg1 h1Q Rg2 d4 Na3 d3 Nc4 Ne7 g8Q Qc7 g7 Ra4 Nb2 Bf2 Ne1 Na6 b8B Rb4 Qa4 Qch2 Bg3 Nf5 Qa3 B8c5 f8N Bd6 Kf7 Nc7 Ne6 Bb6 Nc5 Ne8 Nb3 Bb7 Bh4 Qf4 Qa7 d1N Qa4 Qg5 Bf4 Nf2 Bfg3 Ng4 Qa5 Qf4 Qa7 Nc7 Qga8 Ne8 g8B Be4 Bh7 Neg7 Bg6 Re8 Nd1 Re6 Nb2 Bd5 Qg8 Bbc7 Qg1 Bb6 Qa8 Bc4 Kg8 Re2+ f7 Rc2 Qa3 Rc1 Qa5 Ne6 f8N Neg7+ Ne6 Bd5 Kf7 Bc4 Rd2 Qhe4 Rg2 Bd5 Rb1 a1N Qa4 Nc2 Ra1 Nce3 Qa8 Nf1 Ra6 Bc6 Nc7 Nd2 Ra1 Ne6 Qa2 Bd5 Qb1 Bc4 Ra6 Bd5 Qa1 Bc4 Nc5 Ba2 Nb3 Neg7
4RNBQ/1r2b3/Qnqk1rq1/nP6/n2N2Rp/2P2B2/BBRKR3/2bbn3 w - - 0 1 illegal: No possible last move
RrB1b3/4bBnR/5K1p/Pq1B1RB1/q4QqR/1Qr2r1P/2r3n1/1NNk4 w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 f4 g5 fxg5 Nh6 cxb5 Ng8 b4 axb4 Kf2 Ke7 Ke3 Ke6 Kf4 c5 g4 d5 e4 f5 a4 b3 g6 h6 h3 c4 g7 b2 a5 c3 g5 d4 g6 d3 b6 c2 b7 d2 Nc3 b1Q Qf3 d1Q Ra4 Q8d4 Nge2 Qb5 Nb1 Nc6 b8Q Nf6 g8R Bd7 g7 Ng4 Qb3+ Qdc4 Be3 Be7 Nc1 Nd8 Rb4 Rh7 Rh8 Be8 g8B+ Rf7 Bd2 Ne3 Rh7 Qe2 Qc7 Rb8 Rg1 Qa4 Rg5 Qd5 Rc4 Qdb5 Rh5 Qd1 Be2 Qg1 Bg4 Qd1 Rh4 Qe2 Rc5+ Qec4 Ne2 c1R Rd5 Rc2 Nc1 Qcb4 Qcc4 Rc3 Rc5+ Kd7 e6+ Kd6 Re5 Rf8 Bf7 Rg8 Bf3 Rg2 Qd4+ Kc6 Rd5 Re2 Ke5 Ng2 Bg5 f4 Kf5 Rf2 e5 Rfc2 Bg4 f3 Qf4 f2 Bg8 Bf6 e7 f1R e6 Rff3 Bf7 Bd7 e8B Be7 Bg8 Qd4 Bef7 Be8 Kg6 Qe4+ Rf5 Qec4 Rf6 Kc5 Kg7 Qe4 Rf5+ Kd4 Kg6 Bf6 e7 Ne6 Nd2 Ng7 Nb1 Bd7 e8R Be7 Rc8 Bc6 Bd5 Bd7 Bgf7 Be8 Na2 Kd3 Rd8 Ke2 Nc1+ Ke1 Rc8 Bd6 Kf6 Kd1 Rd8 Rb6 Ra8 Rb8 Re5 Qec4 Bc8 Bf8 Rf5 Qd4+ Qe5 Qg4 Qf4 Be7+
B2Q1Q1r/k1K1B2N/5nP1/4rP2/n4Q1N/bq2pRq1/1B2b3/RQ2Bqqn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 b4 Kb7 f4 h5 d4 a5 b6 c4 b5 a4 d6 a3 Kd5 e4 d7 a2 f6 h3 f7 c3 g5 e3 f5 c2 g6 h2 Nd2 h4 Nh3 Ra5 Bg2 Bd6 f8Q Bb4 Rf1 h1N Bb2 c1Q Ng5 h3 Ndf3 h2 Nh7 Bd2 Kd6 Qc4 d5 Qe4 Nh4 Bc1 Rf3 Qg5 d8B Nf6 Be7 Qa4 Qe1 Ka8 b7+ Ka7 Kc7 Qg3+ d6 Nbd7 Qg1 Qb3 b8B+ Ka8 b6 Nc5 Qe1 Na4 Qb4 Rb5 Qf4 Ba6 d7 Re5 d8Q Be2 Kc8 Qd1 Bc7 Qd5 b7+ Ka7 Ba5 Qg8 Kc7 Qb3 Bbc3 Ba3 Bb2 Ng4 Be1 Nf6 Rc1 a1Q b8Q+ Ka6 Qb5+ Ka7 Qbd3 Qb1 Qb5 Q1d3 Ra1 Qdd1 Ba5 Qf1 Be1 Nf2 Qbd3 h1Q Qc2 Qhg1 Qb1 Qg5 Rh3 Qg4 Ba8 Nh1 Rf3 Q4g3
3N4/QB1q1N1Q/4pnQ1/1NrRb2R/1B1r3N/3PQ2q/2nP1q1r/K2q1b1k w - - 0 1 illegal: No possible last move
nb1nRr1K/2n2R2/4pRQ1/1b3N1P/kNP1N3/2r1rB2/1BR1q2q/1Qr2N2 w - - 0 1 illegal: No possible last move
1k1N1Q1n/NN4b1/3p3q/5Bb1/NrR2P1Q/Bn1R2r1/b1P2BrB/4q1rK w - - 0 1 illegal: No possible last move, all moves rejected
r1N4Q/NNK2N2/1bP1q2P/nRB4B/8/nr1p1b1Q/k1q1bQ1R/b1Q3r1 w - - 0 1 illegal: No possible last move
1kb3Br/5K2/1P6/2B2rQ1/B1BpnNbR/3Pq1Rn/bQ2b1Q1/NqnQ4 w - - 0 1 legal: proof: h4 e5 a4 b5 b4 g5 hxg5 Be7 axb5 Bd6 b6 Bb7 f4 exf4 c3 Bf8 b5 Bb4 cxb4 Bc8 Kf2 d5 Kf3 Kd7 Kg4 f5+ Kh5 a5 e4 c5 g4 d4 e5 c4 g6 f3 d3 c3 b7 Kc7 g5 a4 g7 f2 g6 c2 e6 a3 e7 f4 e8B a2 Rh4 f3 Na3 Nd7 Nh3 Kb8 Nf4 Nh6 g8Q Nc5 g7 Ng4 Bg2 f1B Bd7 f2 Bd5 h6 Kg6 h5 Bc4 Qg5+ Kf7 Bh3 Bb2 c1N Nc2 f1B Ba3 Ra6 Qd8 Be2 g8B Qe5 Qg5 Ne4 Rb1 Ngf2 Na1 Ra5 Rb2 Bf3 Re2 Bhg4 Re3 Be2 Rg3 Nh3 Bc6 Nf6 Be8 Qe3 Bc6 Kc7 Be8 Ne4 b6+ Kd6 Ba4 Rd5 Nc2 a1Q b5+ Rc5 Bb4 Qb1 b8Q+ Kd7 b7 Rd5 Qa7 Kc7 Qa6 Kb8 Na1 Re5 Bc5 Rf5+ Qaf6 Nhf2 Rhh3 h4 Rh1 h3 Qg6 Re5 Qfg5 h2 Qc6 Nd2 Qg2 Nde4 Rg1 h1B Rh3 Kc7 Rh4 Nh3 b8Q+ Kd7 Qa8 Kc7 Qc6+ Kb8 b6 Rd5 Qh2 Re5 Rg3 Bg2 Qb5 Bg2f3 Qb2 Bge6+ Kg7 Bfg4 Qg2 Bd5 Bcb5 Bb3 Bbc4 Ba2 Kf7 Rf5+
1B1nk1K1/1q2bR2/1pNqQ2R/1NB4B/1nR2P2/4R3/1q1B1rbP/1qr1Q1n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 e5 Ke3 g5 Ke4 c5 a4 c4 d4 g4 f4 c3 d6 g3 Kd5 c2 a5 g2 d7+ Ke7 a6 b6 f6+ Kf7 h6 e4 h7 e3 a7 b3 Be2 b2 Ra4 Ba6 Nc3 b1N Nb5 Qc8 d8Q Qc3 Nf3 g1Q Qd7+ Be7 Ne5+ Kf8 Ke6 Qa1 d5 Qg6 d6 Nh6 Bd2 c1Q Rc4 Bb7 Qe1 Nf7 Bh5 e2 Nc6 Na6 Rg1 Rg8 h8R Qab2 Rh6 Nc3 Rg3 Nb4 Re3 Rc8 a8R Qcb1 Ra7 Ba8 Rc7 Qgd3 Ra7 Rg2 Rb7 Rf2 Ra7 Re8 Qc8 Qh7 d7 Qbg6 d8B Bb7 Qc1 e1Q Bc7 Ne2 Bb8 Ng1 Qd1 Qf1 Qe1 Qgb1 Qd7 Qfd3 Qd5 Rc8 Qf5 Nd6 f7 Ba8 Rc7 Nb7 Nca7 Bd6 Rc2 Kg7 f8B+ Kg8 Qe5 Nd8+ Kf6 Qhe4 Rf7 Qc6 Be7 Qc7 Rc3 Bg2 Qe6 Qb7 Bf8 Rc4 Nc6 Qd5 Re4 Qdd3 Kg6 Qd5 Re3 Rc2 Rc4 Qde5 Bg7 Be7 Bf6 Qd6 Bd4 Q1a1 Bc5 Qab1 Rg7+ Kf8 Rf7+ Ke8 Kh7 Rc3+ Kg8 Rc1
rbB1q1b1/Br1Q1p2/R6R/1Q2Pqk1/5n2/NR1nN1B1/Bq1r1P2/1K2R1q1 w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 c4 h5 Kc2 d5 g4 a5 e4 a4 g5 a3 g6 h3 e6 Kf6 e5+ Kf5 b6 h2 g7 d4 e7 h4 e8Q h3 b7 a2 c6 Ne7 g8R Qd7 c5 Nd5 c7 Nf4 c6 Bd6 Rg6 Na6 b8B Nc5 Bc4 Ncd3 Rh6 Kg5 Na3 Qf5 Ne2 Bd7 Rb1 a1Q Re1 h1Q c8R h2 c7 Qc6 Nc3 h1Q Ba2 Qg1 Rb3 Ra7 Qe2 Rb7 Ba7 Qa4 Ra8 Qb2+ Kd1 Rg8 c8B Bb8 Nd5 Bc6 Ne3 Be4 Qe6 Qe8 Qc6 Qh3 Qe6 Bh7 Qd7 Qf5 Bd2 Rf8 Qf1 Bg8 Bc1 Nb4 Qfb5 d3 Bd2 Qd4 Kc1 Qb6 Bc3 d2+ Kb2 Nbd3+ Kb1 Qd4 Bb2 d1R+ Bc1 Bh7 Bc5 Qb4 Raa6 Rd2 Ba7 Bg8 Qc4 Ng6 Qcb5 Rd1 Rb2 Qd8 Ng2+ Qd2 Rb3 Bd6 Qe6 Qe7 Bd7 Ra8 Bc8 Qe8 Qed7 Bb8 Nf4 Qc3 Nd5+ Rd2 Bb2 Rc2 Bc1+ Kg4 Bce3 Rd2 Bf4 Qd4 Bg3 Kg5 Ne3 Ngf4 Qc4 Qc3 Qcb5 Qb2+
1R1R2NN/B1KrQp2/1P3B2/n2q1BBk/2QNq1nN/4n2n/2b1P1q1/4b1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 Kf3 a5 Ke4 g5 Ke5 f3 h4 g4 b4 f2 d4 g3 b6 c4 b7 a4 h6 g2 b5 c3 d6 a3 d7+ Ke7 b6 a2 h5 c2 d5 Ra3 h7 Ra6 h6 Ra3 Qd3 Na6 b8B Bb7 Nd2 Nf6 Qc4 Nc7 Ndf3 Rd3 Ba7 Rg8 Bg5 c1N h8N Nb3 h7 Na5 Rd1 a1Q+ Nd4 Qa4 Ngf3 g1N Bh3 f1Q Bf5 Qg2 Nh4 Nh3 Rhg1 Bg7 d6+ Kf8 Rd2 Ncd5 Rc1 Bh6 N8g6+ Kg7 h8N Ne3 Ne7 Be4 Ra1 Qa8 d8B Qe8 d7 Nfg4+ Kd6 Qb7 Bf4 Qd5+ Kc7 Kf6 Be5+ Kg5 Bf6+ Kh5 Ra4 Rg6 Ng8 Bf8 Bg5 Bb4 Bdf6 Qe7 Rd1 Be1 Rd2 Qee6 d8Q Qe8 Rd1 Rd2 Qe7 Bc2 Rb4 Rd3 Rb5 Qea8 Rc5 Qde4 Rd5 Rd2 Rd8 Qad5 Bg7 Rd6 B7f6 Rd3 Ra1 Rd1 Ra4 Bg3 Ra1 Rg1 Rd1 Bf2 Rb8 Be1 Qa2 Qc5+ Nc6 Re6 Rdd8 Qcd5 Nd4 Rd6 Qc4 Rd7+
3B1Q1K/2R1P3/q2n3r/r1Q2rqp/B2b4/2P2QQ1/BkNb1nb1/2r2NRB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 g4 h5 b4 f6 c3 d6 b6 a4 b7 a3 g6 a2 g5 d3 b5 d2 b6 Ra5 g7 Ne7 g6 Na6 b8Q Rh6 b7 Nb4 Qc7 Nf5 b8Q Nd3 Nf3 Nf2+ Kf4 Kd5 g8Q+ Be6 Bg2 Bg7 Rg1 Bf7 Qf1 d1Q e6 Qd3 e7 Qa6 e8B Bh8 Qcb6 Kc4 g7 d5 Ne1 d4 e4+ d3 e5 Bd5 e6 Nd6 Ba4 f5 Ke5 f4 Nc2 f3 Qf8 Rf6 g8B Bg7 Qd1 d2 Bh1 Kd3 Qc5 Ba8 Qe1 d1R Bg5 Rc1 Nd2 Bd5 Rb1 a1B Rb7 Bb2 Rc7 Ba3 Qc8 Bh6 Qc6 Bc5 Nf1 Ba7 Bh4 Bd2 Qc5 Qe7 Qb7 Qg7 e7 Bc6 Ba2 Rf5+ Ke6 Qg5 Bg3 Bb6 Qce5 Bd4 Qc5 Nh3 Bh2 f2 Qee5 Bg2 Qg3+ Ke2 Qbd5 Kd1 Qe4 Rb1 Qee3 Kc1 Qef3 Kb2 Qf6 Nc4+ Kf7 Nd6+ Kf8 Rc1 Qf7 Bg7+ Kg8 Be5+ Kh7 Bd4 Qf8 Rf6 Nfe3 f1R Kh8 Rfe1 Nf1 Re5 Nb4 Nf2 Nc2 Ref5 Qge5 Qc4 Rd7 Nb7 Qeb8 Qf7 Bc7 Qc4 Bd8 Qa6 Qbg3 Nd6 Rc7 Rh6#
q5NB/3Bp2N/nN3R1P/2bQr1r1/4N3/3nPr2/b2RQrq1/1KQQ1q1k w - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 b4 Kd7 d4 Kd6 Kd2 f5 Kc2 c5 h4 a5 h5 f4 g6 c4 g7 g3 h6 g2 e3 f3 b6 c3 b5 f2 b7 a4 b6 a3 Bb2 a2 Bb5 f1R Bd7 Ra4 Rh2 Na6 b8N Rf2+ Qe2 Ra5 b7 Nf6 g8N Bg7 Nd2 Ne4 Rf1 a1R Ngf3 g1Q Ng5 Nec5 Nh7 Nd3 Rg2 R1a2 Kb1 Rf3 Rh2 Qg2 Ne4+ Kc7 d6+ Kb6 d5 Bd4 Bg4 Be6 d7 Bc5 d6 Kb5 Bf5 Kc4 Bh3 Qe8 d8Q Kd5 Nd7 Bf7 Qc7 Qa8 b8Q Be6 Qd1 Bf7 Ba1 Raf2 Nb6+ Ke5 Qe2 Bd5 Qbb7 Ba2+ Kc2 Rb5 Qcc6 Ra5 d7 Rb5 d8Q Ra5 Ngf6 Rg8 Bd7 Rg5 Ng8 Rb5 Be8 Kf5 Qcd5+ Kg4 Qbc7 Nf4 Kc1 c2 Bh8 Ra5 Qdd1 Re5 Kb2 Nd3+ Ka1 Rg5 Qd5 Re5 Nd6 Kg3 Bd7 Bd4+ Qc3 Bc5 Qb2 c1Q+ Qb1 Qc4 Qbc1 Bb3+ Kb1 Rg5 Rh4 Qb5 Ra4 Kh2 Ra2 Qc4 Rd2 Ba2+ Ka1 Qcg4 Ne4 Q4h3 Re1 Re5 Rg1 Qf1 Rg6 Kh1 Rc6 Qg2 Rf6 Ra4 Nc3 Rg4 Ne4 Bc4 Kb1 Rgg5 Qb2 Bb3 Qbc1 Ba2+
3Qq3/1q1RpqRP/bNQb2b1/1B2k1r1/4N2Q/rqn2BK1/P1BQ1B2/1n6 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 h4 Kf7 f4 Kf6 Kf2 g5 c4 d5 h6 b5 c6 b3 c7 b4 c5 b2 h7 g4 c6 d4 h5 d3 h6 d2 Nh3 b3 Rg1 Qd4+ Kg3 Qa7 Nf2 Bd7 c8B Qb7 c7 Nc6 Bb5 Na5 Nc3 b1B Na4 b2 Nb6 Nb3 Qe2 d1Q Qd2 Qb8 Bb7 Bc8 Bf3 Ba6 c8B Bg7 Bcd7 Qe8 Ne4+ Kf7 Rg2 Be5 f6 Bd6 Bf5 Bd3 Bg6+ Ke6 f7 b1Q f8Q Nf6 Qg7 Rf8 h8Q Nd5 Qgc3 Rf5 Qc6 Nc3 h7 Rg5 Qd4 Qh1 Ba3 Qb2 Rd1 Qf7 Bc5 Qa3 Qe1 Nd2 Qa4 Qb2 Bf2 Ndb1 Qc2 Qb3 Qcd2 Qh6 Qh1 Qhf8 Qh4 Q8e8 Nf6 Bc4 Bc2 Bd3 Ne4 Ra7 Kh2 g3+ Kh3 Qef8 f5+ Ke5 f6 Q8e8 Rgg1 g2 Kh2 Qfd5 f7 Ra8 f8Q Qdf7 Nf6 Bg6 Ne4 Qd7 Qd8 Qb7 Rh1 g1Q+ Kh3 Qe1 Rg1 Qe8 Rg4 Qf1+ Kg3 Bc7 Qe1 Qfc4 Rd7 Qcf7 Qd2 Bd6 Ba4 Bc4 Bb5 Ra3 Ba4 Ba6 Bb5 Rh5 Rg5+ Bf5 Rg8 Bg6 Rg7 Rg5+
2k1nq2/QNP1q3/1P1Br1Q1/Kb5N/n4bBR/1N4b1/1pr2R2/n1NB2nB w - - 0 1 illegal: No proof kernel
RR5n/2pnBr2/2KQ3Q/2b1r1q1/2qB2k1/b1Pn4/1N2NRPr/BBn3R1 w - - 0 1 legal: proof: f4 e5 a4 exf4 h3 b5 axb5 Bb7 d3 Be4 dxe4 g5 e5 g4 hxg4 Qe7 Nd2 Qg5 Nb1 Qd8 Kd2 Ke7 Kc3 Ke6 Kc4 a5 e4 h5 b4 f5 c3 f3 b6 d5+ Kb5 a4 g5 f4 b7 h4 g6 f2 g7 a3 Bb2 a2 Nd2 f3 Bd3 f1R Ne2 f2 Rg1 h3 Nc4 d4 Bb1 Na6 b8B h2 Kc6 h1N b5 d3 b6 d2 b7 Nh6 g8R Bc5 Rf8 Qg5 Ba7 Nf7 b8B Ng3 Bb6 Rh6 B8a7 Rh2 Ba5 Re8 Bb4 Nh8 Bb6 Be7 Bd4 Nc5 Qc1 d1N Rf7 Qf6 Qh6 Nd7 Rf8 Bc5 B4a3 Ke7+ e6 Qf4 e5 Qg5 Bc1 Nb2 Rf7+ Kd8 e7+ Kc8 e6 Nd3 Nf4 Ne2 Bcb2 Nec1 Ne2 Rd1 Rf5 f1Q Rf2 Re1 Bb4 Rf8 B4a3 Rf7 e8Q+ Qd8 Qe7 Qg8 Bc2 Qg5 Qd6 Kd8 Rb1 a1B e7+ Ke8 Ng3 Re5 Ne2 Rff5 Bb4 Kf7 e8R Rf4 Ra8 Rf6 Qf8+ Kg6 Qg7+ Kh5 Qh6+ Kg4 Ng3 Bb6 Qe6+ Rff5 Be7 Bc5 Qd6 Ne1 Be4 Qd3 Ne2 Rf3 Ba3 Rf7 Rbb8 Bb2 Bg6 Qdd2 Bb1 Ned3 Qhg6 Nb3 Qh6 Bc1 Bb2 Qde3 Ba1 B1a3 Nb2 Qef4 Be3 Qc4 Bd4 Nbc1
2BbR2n/PnrN2R1/1qR5/R1rQ1b2/np1Qb1Nq/Q1Q5/3B1b1P/4K1k1 w - - 0 1 illegal: No possible last move, all moves rejected
qQrkN1R1/p3r1n1/2PK3b/7N/n1P1R1br/n4B2/q1QN2B1/B2BnN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kd2 d5 Kd3 f5 Kd4 h5 Ke5 f3 b4 f4 g4 d4 e4 h4 b6 h3 b7 d3 c6 h2 g6 f2 g5 f3 b5 d2 b6 Na6 b8N Be6 g7 Bc8 b7 Nc7 g6 Nf6 g8B Ne6 g7 Ng5 Ra4 Ke7 Bg2 f1Q Bb3 f2 g8B Qa5+ Bgd5 Rh7 Nf3 Rf7 Bb2 Bg4 Rg1 h1R Nd7 Rh4 b8Q Bh6 Nh2 Nh5 Nf6 Ng7 Ba1 Qfb5 c3 f1N Qc2 d1N Nh5 Nfe3 Nf1 Qb7 Nbd2 Nb2 Rd4 Qaa6 c4 Qa2 Ba4 Qc8 Bf3 Ke8 Kd6 Re7 e5 Kd8 Bg2 Nf3 e6 Ne1 Bdf3 Rf7 Bb3 Na4 Re4 Re7 Qb1 Rb7 Bbd1 N3c2 Qb3 Na3 Qc2 Rc7 e7+ Ke8 Qb5 Qb7 Qbb2 Rac8 Qb6 Qa8 Qb8 Kf7 e8N Rb7 Ke5 Ke7 Kd5+ Kd8 Kd6 Rc7 Bh1 Bf5 Rg5 Be6 Bhg2 Bg4 Rg6 Re7 Rg5 Ne6 Rg8 Ng7
Q1NB1r1B/1R5n/2B2n1r/B1R1b1qN/3k2PN/1r4Pr/r2p1rb1/2KN3Q w - - 0 1 illegal: No possible last move, all moves rejected
N1QrB3/P6Q/P1nN4/1r2k3/b3r2b/3BBnr1/QRp2Rrq/2Q1r1BK w - - 0 1 illegal: No possible last move, all moves rejected
Qb1N1RBq/8/3nbQp1/3nr3/3K2Pr/bk2BP1B/b1NrR1R1/1B2rR2 w - - 0 1 illegal: No possible last move, all moves rejected
1nQ5/k2nB2B/P2r1BN1/2R1NR1q/1b1nPbr1/pb2b2n/K1B1Q3/6QQ w - - 0 1 illegal: No proof kernel
2k1n3/n3pbQ1/3BK2b/RnP1nr1q/br5B/Q1PN4/R1B1N3/1BR1R1b1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Ke2 a5 Kd3 d5 Kd4 Kd7 Ke5 h5 b4 d4 g4 a4 f4 d3 g5 d2 g6 a3 c3 a2 f6 h3 g7 h2 f5 h4 b6 h3 b7 Kc7 f7 Rh4 f6 Ra6 b5 Qe8 Ne2 Bf5 Na3 Bg6 Nc4 Nc6+ Ke6 Na7+ b6+ Kd8 b8B Kc8 Nb2 Rb4 Qe1 d1B Bg5 Ba4 Rc1 a1B Nd3 Bb2 Bh4 Ba3 Rg1 h1N Bd6 h2 Rg2 Ng3 b7+ Kd8 Qd2 h1N Qb2 Ne4 Qa2 Bb2 Qa3 Nhf2 Re1 Rc6 b8R+ Rc8 Ra8 Bc1 Rh2 Ng4 Bh3 Ne5 Bf5 Be3 Rg2 Nh6 g8B Nhg4 Bh7 Bfh6 f8Q Bg1 f7 Ngf6 Qg7 Qh8 f8R+ Ne8 Rh2 Rcb8 Rg8 Kc8 Rc1 Nac6 Ra5 Na7 Rf2 Ra8 Rff1 Rab8 Rfe1 Ra8 Bb8 Nd6 Bc7 Ndb5 Bd6 Rb8 Rf8 Rb6 Be4 Rb8 Rf2 Rb6 Bd5 Rf4 Ba2 Rf5 Bb1 Bg5 Bg8 Qh5 Bh7 Be3 Nd4 Bh6 Ra2 Rb7 Ne2 Rd7 Bb8 Rd4 Bd6 Rb4 Qg8 Rf8 Qg7 Be4 Nb2 Bd3 Be4 Bdc2 Bg2 Bg6 Bge4 Rf7 Bec2 Rf5 Nd3 Bf7+
1r6/NP1pbR1K/b2brB2/4nr1k/B2Rr3/Q7/P1QQq3/bNQnN2N w - - 0 1 illegal: No proof kernel
Q2r1Qnq/PN3P2/N2n2N1/B1b1N2B/3BBnK1/1kb5/3bRpr1/Rb2n3 w - - 0 1 illegal: No proof kernel
R5Qn/n2b3q/n1NK2PR/6N1/knBp1n2/BrR2N2/1b1P1b2/q1NQR3 w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 f5 e4 g5 exf5 Bb7 a4 Bg7 h4 gxh4 b6 Bc8 b7 Ra6 b5 Rd6 b6 Rd5 Nh3 Rb5 axb5 a4 Ng1 Bf8 Ke2 h5 Kf3 d5 Kf4 Kd7 Ke5 c5 g4 d4 f4 a3 f6 c4 g5 c3 f5 h3 g6 c2 f7 h4 f6 a2 Bg2 h2 Ba3 c1N Qa4 h3 Nf3 Ne2 Ng1 Nf4 Qa5 Qc7+ Bd6 Nh6 Qc3 Na6 b8R e6 Ke4 e5 b7 Be7 f8R Nf7 Kf5 e4 b6 e3 Qc2 e2 Nf3 e1N Nc3 Ned3 Bf1 Ndb4 Bc4 Nc6 Ra8 Na7 Rae1 a1B b8Q Bb2 b7 Kc6+ Ke4 Rg8 Na2 Bd7 Rc8 Nh8 f7 Bh4 Ke5 Bf2 f8N Kb6 Qb3+ Ka5 Ne6 Rf8 Qd1 Rf5+ Ke4 Rb5 Nc1 Rb3 Ke5 Ka4 Neg5 Qa5+ Rc5 Qc3 Qg8 Qa5 Rhf1 h1Q b8N h2 Nc6 Qc7 Rg1 Qb7 Rg3 Qg1 Rg2 h1N Rh2 Nh5 Ne2 Qb4 Rf1 Be8 Bf7 Qb7 Qc2 Nf4 Rh6 Bg3 Rc3 Nf2 Ba3 N2d3+ Kd6 Ndb4 Bc4 Qh7 Ra1 Qb1 Qc1 Bf2 Qc2 Qa2 Re1 Qa1 Nc1 Bd7 Qd1 Be3 Rf1 Bg1 Re1 Bf2
2r1r1N1/2Q1nPB1/Q1BBb1kN/2B1KNr1/q4p1r/R4n2/3r1Pr1/3r1N1R w - - 0 1 legal: proof: e4 b5 c4 f5 a4 g5 axb5 d5 cxd5 Bh6 h4 Bg7 e5 Bf6 exf6 gxh4 Ke2 Kf7 Kd3 c5 g4 e5 b4 a5 g5 h5 b6 h3 d6 h2 b5 f4 Ke4 c4 d4 c3 b7 a4 d7 a3 b6 h4 d5 a2 d6 c2 Ne2 h3 Ba3 c1R Nd2 Rh5 Qa4 Rc7 Bg2 Kg6 Ng3 Qe8 d8Q Ne7 d7 Nbc6 b8B Nd4 b7 Nf3 Ndf1 Rc2 Bbd6 Rd2 Qc7 Rb8 d8N Be6 Bb2 Rc8 Qa6 Qa4+ Bb4 Rh4 b8B Rg4 Nf5 Rg3 Rg1 h1R Nf7 Rh2 N7h6 Rg4 Bh1 Rhg2 f7 h2 Ba7 R4g3 Bbd4 Rg4 Bd6 Rh4 Bac5 Rh5 Re1 a1R Re3 Rad1 Rd3 Rg3 Bg2 h1R Ra3 R1h2 Rh1 R5h4 Bh3 Rhg2 Bg4 Nh2 Be2 Nf3 Bb5 Kh5 g6 Rg5 g7 Kg6 g8N Rc2 Nd2 Ra2 Kd3 e4+ Kc3 e3 Bg7 e2 Bc6 e1R Nf1 Re3+ Qd3 Bd7 Bd5 Nc6 Be4 Ree2 Qa6 Rab2 Bd5 Ree8 Be4 Ne7 Bc6 Rdb1 Kd3 Be6 Kc3 Qa5+ Kd3 Rd2+ Ke4 Rc1 Nd4 Rcd1 Ndf5 Ng1 Ke5 Qb4 Be3 Qa4 Bec5 Nf3+
4nN2/q3npbR/Qbq2P2/1P3N1K/b1RQ3B/8/2N1rQNq/nk1BqQ2 w - - 0 1 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 exd5 Bh3 d4 Bh6 d6 Kf8 d5 Kg7 c5 Bc8 h3 Kf6 h4 Ra6 d7 Rd6 cxd6 gxh4 Ne2 Bg7 Ng1 Bf8 Ke2 Kf5 Kf3 c5 b4 h5 g4+ Ke5 b6 h3 g5 h2 g6 a4 g7 h4 Kg4 Ke4 f4 e5 b7 h3 b5 c4 f5 a3 f6 c3 Bg5 a2 Bh4 c2 Nf3 c1B Ne1 Qa5 Be2 Ba3 Ng2 Ne7 g8N Bc5 Nh6 Bb6 Nf5 Na6 d8Q Be6 b8N Bg7 d7 Re8 d6 Bb3 Qc8 Ba4 d8Q Nc7 Na3 Qa7 Rc1 a1N d7 Ne6 Qe1 Nc7 Bd1+ Kd3 Kh5 e4 Qb7 e3 Nc2 e2 Qf2 e1Q Qa6 Kc3 Qdc8 Kb2 d8Q Ka2 Nd7 Kb2 Rf1 h1Q Nf8 h2 Qdd4+ Ka2 Qcd8 Qg1 Qdf4 h1Q Qdd4 Qgh2 Q4f3 Nc8 Rg1 Re2 Qf1 Ne8 Qg3 Qh3 Qgf2 Q1h2 Rh1 Ne7 Rb1 Qhc3 Rb4 Qc6 Rc4 Qg1 Rh3 Kb1 Rg3 Bh8 Rg7 Qh2 Rh7 Bg7
1q1QQ2R/1b2qn1K/2P1B3/1q3N1k/1b1nB2B/Q1p1Rn2/N1P3b1/B1r1q1Q1 w - - 0 1 legal: proof: e4 c5 a4 g5 h4 gxh4 d4 a5 Bb5 f5 Bf1 b5 axb5 c4 exf5 Ra6 Nd2 Rc6 Nb1 Rc5 dxc5 Qb6 Bf4 Qc7 Bc1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 h5 f4 h3 g4 h2 b4 d6 g5 h4 c6 a4 g6+ Kg7 b6 Kh6 b5 h3 g7 a3 b7 a2 b6 Qg5 f6 Rh7 f5 Nd7 b8Q Bb7 Nf3 Kh5 f7 Nh6 g8B Qe7 f6 Rh8 Qd8 d5+ Ke3 e4 Kf4 d4 Nc3 d3 Bg2 d2 Qg1 d1N Nh4 e3 Be4 e2 Nf5 e1Q Bb2 Ne3 Qe8 Qe2 Re1 a1Q Na2 Qb1 Ba1 c3 Qd8 Ne5 Qe8 Bg7 f8Q+ Nhf7 Qd8 Qa6 Qfe8 Bf8 Re2 Nf3 Re1 Bc8 b7 Qab5 b8B Bb7 Be5 Q1b4 Bd4 Qbd6+ Be5 Qb8 Bd6 Nc4 Re3 Nce5 Ba3 Nd4 Bc1 Qa7 Bd2 Qb8 Be1 Rh6 Bh4 Rg6 Qd6 Rg2 Qa3 Rd2 Qd8 Rd1 Qe8 Rc1 Qd8 Ng5 Be6 Ngf3 f7 Bg7 f8Q Nf7+ Qc7 Bf6 Qe8 Bg7 B4d5 Be5+ Ke4 Bd6 Qcd8 Bb4 Qgg8 Ng1 Ng7+ Kh6 Bf2 Nde2 Kf5 Nf3 Bg3 Qf8 Kf6 Ned4 Be4 Qfc5 Rf1 h1Q Nf5+ Kh5 Kg7 h2 Rf2 Qe1 Rd2 h1B Rh2+ Kg4 Rh8 Qcd6 Kh7+ Kh5 Bh4 Qe7 Qg1 Bg2
4Q1n1/NB5R/1RRb4/1NQ1qk2/2rqnp1B/b1Q1b3/1Q2bP1P/q2n1R1K w - - 0 1 legal: proof: c4 b5 e4 a5 a4 h5 axb5 d5 exd5 Bh3 d4 Bc8 g4 hxg4 c5 Kd7 d6 Ke6 d5+ Kf5 d7 Kf6 Bg2 Ra6 Bf1 Rd6 cxd6 Kg6 Na3 Kf5 Nb1 Kf6 b4 c5 b6 g5 b5 e5 b7 a4 b6 g3 Bb5 g2 Ba6 a3 Bb5 c4 Nc3 g4 Qd3 g3 Bc6 a2 Nge2 g1N Kf1 e4 Kg2 e3 Nd4 e2 Ncb5 e1Q Qc3 Ne2 Na7 Na6 b8Q Rh4 b7 Nc5 Rf1 Ne4 Ndb5+ Kf5 Kh1 f6 Rb1 a1B Qc7 Bb2 b8Q Ba3 Bg5 Ba6 Bb7 Be7 Qc5 Bf8 Qb2 c3 Qbc7 c2 Qc8 Rg4 Bh4 c1B Q8c6 Qb6 d8Q Be3 d7 Bd6 Qe8 N2c3 d8R Nd1 Rd7 Rf4 Qcc3 Qd4 Rh7 Qe2 Q6c5 Qh5 Nc7 Be2 Ncb5 Rg4 Qf8 Qe8 Qf7 Qee5 Qe8 Bc7 d6 Bb8 d7 Bd6 d8R Rf4 Kg2 Rg4 Kh3 g2 Rc8 g1Q Rc6 Rg7 Rc1 Rc7 Rb6 Rc6 Q5b4 Rc4 Qc5 Kf4 Rc2 f5 Rc1 Qgg7 Rc2 Qgf6 Kg2 Kg4 Kh1 f4 Rc1 Kf5 Ra1 Bb4 Raa6 Ba3 Rc6 Qd2 Rcb6 Qc1 Rc6 Qa1 Rab6 Qg7 Q5b4 Qd4 Qc5+ Qge5
B5R1/Nb4QN/2QB2qr/q2nK1b1/2p1Bbq1/2N2B1P/RqP3Nk/n1n5 w - - 0 1 legal: proof: d4 b5 a4 a5 axb5 h5 e4 e5 dxe5 Ne7 g4 hxg4 f4 Ng8 f5 Ke7 e6 Kf6 e7 Ra7 Ra4 Ra6 Ra1 Re6 fxe6 Kg6 e5 Rh3 Ra3 Rh7 Ra1 Rh8 Kd2 Kf5 Kd3 c5 e8N d5 b4 g5 h3 a4 b6 c4+ Kd4 a3 b5 a2 e7 g3 e6 g4 b7 g2 b6 g3 Nc7 Na6 b8Q Nb4 e8B Rh6 b7 Nd3 e7 Nf6 Ne2 g1B+ Be3 g2 Qa8 Bh2 b8N g1Q Nb5 Qa5 Bc6 Qg3 e8B Be7 Bf4 Qg5 Ke3 d4+ Kf3 Qg8 Bd6 Kg5 Qc1+ Kh4 Rg1 Qg5 Qa7 Qe5 Qb6 Nd5 Na7 f5 Ba8 f4 Bh5 Bb7 Qcb2 Qf5 Rg8 Bg5 Qc6 Qg6 Nd7 Bg3 Nf6 Bh2 Kg2 f3+ Kh1 f2 Nh7 Bg3 Bg2 Be5 Nf4 f1Q+ Kh2 Qc1 Qc3 Qb2 Be2 N3b4 Bg4 d3 Be4 d2 Kg2 Nd3 Kf3 Qb3 Qd4 Qb2 Nc3 d1Q+ Nfe2 Bh2 Qg7 Qg1 Nf4 Bg3 Bef5 Bh2 Ke4 Kg3 Be2 Qg2+ Kd4 Qf3 Be4 Qg4 B2f3 Qb3 Rb1 a1N Rb2 Nc1 Ra2 Qb2 Ke5 Bg1 Bb8 Kh2 Ng2 B1e3 Bd6 Bef4+
1B2br2/RK1N1R2/4R3/R2rnB2/p1Nq1Q2/2rr3n/Pq1PB2B/qk1n3Q w - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 Bh6 gxf5 dxe4 Na3 g4 Nb1 Bg5 hxg5 Qc7 Bg2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kc6 f4 Kd5 c3 b5 g6 h5 f6 a5 c6 e5 g7 b4 c7 g3 f7 a4 f8R h4 f5 b3 f6 g2 f7 h3 Bd3 b2 Be2 h2 Na3 b1Q Bb2 Rh5 Nc4 Nf6 g8R Nc6 Rg7 Bd7 c8Q Be8 Nf3 g1N Qf5 Nh3 Qf4 Qc1 Re1 h1Q Rb1 Rf5 Ba3 Qb2 Bd6 Ra5 Bb8 Kc5 Nd6 Rb5 c4 Kb4 Qc1 Rd5 c5 Ka3 Qd1 Qc1 Rb5 Qb2 Ra5 Qdb6 Rg2 Qg1+ Rf2 Qa1 Rh8 Kb2 f8B Qb5 Rh7 Qg4 Bc4 Qh4 Rha7 Ng4+ Ke2 e3 Bd3 e4 Ne5 Rg5 Nd7 Nce5 c6 Rf5 c7 Rf7 Be7 Rf8 c8B Qb6 Rf3 Ngf2 Bd8 Qb3 Bdc7 Qc2 Bb5 Qcc1 Nc4+ Kb1 Rg1 Qh8 Rg6 Rd3 Qh1 Nd1 Re6 Qcb2 Qg5 Qg7 Rf7 Rd5 Qf4 Qf6 Kf1 e2+ Kg2 e1R Kg3 e3 Bd6 Ng6 Kf3 e2 Ke4 Ne5 Bdc7 Rd3 Bd6 Rc3 Kd5 Rf1 Kc5 e1R Kb6 Ree3 Kb7 Red3 Qf2 Re3 Ndb6 Qh6 Ree7 Nd3 Na3+ Kc1 Bh2 Qh8 Bcd7 Re5 Bf5 Rd5 Re6 Qd4 Qf4 Ne5 Be2 Rff3 Nc4 Rfd3 Bg3 Qc2 Nd7 Kb1 Bh2 Qcb2+
N1b3Q1/2nPb2B/q4QR1/R1bR2r1/1b1Bq1p1/1N3NP1/2N1nR2/2n1K1nk w - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 a4 exf4 axb5 g5 Nc3 g4 Nb1 Ra6 Qa4 Rg6 Qd1 Rg5 hxg5 Bg7 Qc2 Bh6 Qd1 Bf8 d4 Kd7 e4 Kd6 b4 f5 g6 h5 g7 c5 b6 c4 b7 f3 b5 c3 b6 h4 g3 a4 Bh3 a3 Qa4 f4 Qa5 a2 Kd1 c2+ Ke1 Qe8 Bg2 h3 Qd2 h2 Na3 Nf6 g8Q Nh5 Qf2 Be7 Bb2 c1B Nc2 Na6 b8N Nc7 b7 Qa4 Bf1 Qa6 Nc6 Rh7 b8N Rg7 Na5 Rg5 Nd7 Be3 Bc4 Bc1 Bc3 Ba3 Nb3 Bc5 Bd3 Ba3 Rd1 a1B Nb6 Bc5 Rc1 Bb2 Ra1 Bc1 Qf1 B1a3 Na8 f2+ Ke2 Rf5 Nf3 Rg5 Rg1 h1Q Rg2 Qa5 Ra2 Qa6 Qa1 f1N Rf2 Nd2 e5+ Kd7 e6+ Kd6 Qb2 Qg2 Ke1 Qh1+ Ng1 f3 Bh7 Nf4 Qa1 Ne2 Qb2 Bf8 e7 Qg2 e8R Be7 Rf8 Qh1 Rf7 Qg2 Rg7 Qh1 Na5 Nb3 Ra1 Nbc1 Nb3 Qh6 Ra2 Qg6 Ra1 Qe4 Rg6+ Kd7 d6 Kc6 Qd8 Kd5 d7 Qed3 Qg8+ Ke4 d8R Qdc4 d5 Qb4 Rf1 f2+ Kd2 Qba4 d6 Qe8 Bd4 Qec6 Rd1 f1N+ Ke1 Nd2 Rf8 Qca4 Rf2 Nf3+ Kf1 Q4c4 d7 Qd3 Be3 Qdc4 Qf6 Qca4 Rd5 Qb4 Nh3 Nfg1 Bd4 Qbc4 Ke1 Qd3 Nf4 Qf3 Nd3 Qf4 Rh2 Kf3 Ra2 Qf5 Rh5 Kg2 Ne5 Qe4 Nf3 Re5 Rf5 Kh1 Rf4 Rg5 Rff5 Bb2 Ra5 Bba3 Nh4 Ne6 Rf2 Nc7 Nf3 Bab4+
nR1Nr1b1/RRbPr3/B1b3N1/4n1N1/1B2pn1r/4P2N/kr2RQKb/6Q1 w - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 cxd5 Qd6 axb5 Qh6 Rh3 fxg4 Rh1 g3 Ra3 g4 Ra1 Qg5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 b4 Kd7 d4 Kd6 f4 c5 f5 h5 f6 e5 f7 a5 e3 a4 g6 c4 g7 a3 b6 h4 b5 g2 Kf2 h3 b7 g3+ Kf3 h2 b6 a2 Nh3 g1R Bd2 g2 Qc2 c3 Bc4 Nc6 b8R Be6 b7 Nf6 g8Q Rh4 Kf2 Ne8 Rc8 Nc7 Qcg6 c2 Nc3 c1N Qf6 Ne2 Bd3 Rb1 Re1 Bg7 f8N h1B Qf3 Nf4 Re2 Rb2 Ne4+ Ke7 Kg3 g1B Qf2 Bf6 Qg5 Bg8 d6+ Kf7 d5 Bd8 Ng6 Rb8 Qh2 Na8 Bb4 Bb6 Qg2 Bh2+ Kf2 Bd8 Qf3 Bb6 Qg1 Bg2 Neg5+ Kf6 Rc7 Re8 b8R Bh1 Rcb7 Bd8 Rc1 a1R Rb5 Ra7 Ra1 Rae7 R5b7 Bg2 Raa7 Bb6 d7 Bc7 d6 Bh1 Qfg3 Bhd5 d8N e4 d7 Ne5 Kf1 Bc6 Q3f2 Kf5 Nf3 Kf6 Nf7 Ke6 Nf3g5+ Kd5 Nd8 Be6 Ba5 Bg8 Ba6 Kc5 Bb4+ Kd5 Rb5+ Kc4 R5b6+ Kb3 R6b7 Nfd3 Kg2 Ka2 Bd2 Bf7 Ba5 Bg8 Bb4 Nf4+
6n1/PRBbrPQb/B1rK1N1Q/B5pp/nb2N1R1/Q4r1q/3Q2nk/1B6 w - - 0 1 illegal: No proof kernel
Qn3N1N/4NR1q/Q1r4Q/1Q1bp2r/1q2B1p1/2rNB1K1/Pnb1k1Pb/R7 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 g4 Bd3 Qd6 Be2 Qf4 Bf1 Qg5 hxg5 Kd8 Rh3 Kd7 Rh1 Ke8 d4 Kf7 f4 h5 Kf2 e5 f6 Kg6 f7 Kf5 g6 Ke4 d6 c5 d7 b5 d8Q c4 f5 b3 g7 c3 d5 c2 f6 b4 d6 h4 d7 b2 Qd2 b3 Qb6 h3 d8Q h2 Bb5 Be6 Qa6 Ne7 g8Q Bd5 Qh6 Nc8 Kg3 Nd6 Ne2 Nc4 Be3 Kd3 Bc6 c1R Qda5 Rc3 Q5b5 Bc5 Rf1 h1Q f8N Ra7 f7 Rc7 Bb7 Rc6 Ng6 Bb6 f8N Qh5 Qhg7 Qh7 Qh6 Bc5 Rf7 Bd4 Nd2 b1Q Ne4 b2 Ne7 Bb6 Ng5 Ba7 Bf4 Bg1 Be3 Qe1+ Bf2 b1B Nf4+ Kd2+ Nd3 Bc2 Ba8 Qee4 Be3+ Ke2 Bb7 Nb2 Ba8 Rg6 Bb7 Qb4 Bc6 Be6 Be4 Rf6 Qa8 Bd5 Qgg6 Rfc6 Qd6 Rc7 Qda6 R3c6 Nfg6 Rc3 Ne6 R7c6 Nef8 Qg7 Qg5 Rh5 Qh6 Qh7 Nh8 Bh2+
r1QRBn2/BbQN3N/5N2/1qp2r2/KNr2q2/1PkP1pb1/4R3/nR3Rb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Ke7 h4 Kf6 h6 Ke5 h7 Kd4 h5 f5 h6 g5 b3 a5 b6 c6 e5 a4 e6 g4 d6 g3 b7 a3 e7 f3 e8N g2 d7 a2 Nc3 f4 Bb5 Bg7 d3 f2+ Kd2 f1Q Qc2 f3 Nh3 g1R Nd5 Rg4 Ng5 Ne7 Rb1 Na6 b8N Be5 Nef6 a1B Ba4 Qc7 d8R Qg1 Ba3 Qg3 Rhf1 Ng6 Bf8 Rg8 h8R Nb4 h7 Bb7 Bd6 Rg7 Rhe8 Nf8 Kc1 Qh4 Qh2 Nc2 Nb4 c5 Bd7 Bg3 Re2 Qb6 Be8 Be1 Qg3 Bac3 Qh2 Bcd2+ Kb2 Na1 Qg3 Be3 Qh2 Ba6 Ka3 Bg1 Ka4 Kc3 Qg3 Rc4 Bc7 Qd6 Bb6 Bb7+ Ba7 Qb6 Qc7 Bef2 Qc8 Rd7 h8Q Rd5 Qh7 Qf4 Qhc7 Rf5 Nbd7 Bg3 Ngh7 Qb5+
3K1Q2/rn5Q/6pN/R2Pk2N/1NbRqn1Q/Bn1P2qB/pQr3rb/5N2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 a5 Kc5 g6 b4 a4 f4 g3 h4 a3 h5 c6 h6 g2 b6 Be6 b7 Bg7 d3 Qc7 b5 Bf7 h7 e5 b6 e4 Ne2 g1N Nd2 e3 Rh4 Qd7 Qa4 Nh3 Ng3 Qe8 Kd6 c5 Kc7 Nc6 b8N e2 b7 e1Q Na6 c4 b8Q c3 Qb2 Nge7 Nb4 Nd8 Ra2 Rf8 h8N Nec6 Bg2 Nd4 Ndf1 Be6 Nf7 c2 Nh6 Bd7 Rg4 Bb5 Nh5+ Ke7 Qa7 Nb3 Qf2 Bc4 Qh4+ Rf6 Ra1 Qg3 Ra2 Nf2 Bh3 Ra7+ Kc8 Kd6 Ra1 Re6 f6 Qa4 f5 Re2 f7 Be5 f6 Nb7 Rd4 Bf4 f8Q+ Ke5 f7 a2 Qg8 Rd2 f8Q Re2 Qh7 Rd2 Bd7 Nh3 Rb1 Rg2 Be6 Qf3 Bd7 Bh2 Bf5 Nf4 Bh3 N7a5 Kd8 Qe3 Qa1 Qg3 Ba3 c1R Qb2 Rcc2 Na6 Qb4 Rc1 Qbe1 Nb4 Rcd2 Rc2 Qe4 Rc3 Bb5 Rc5 Nb7+ Kc7 Bc4 Ra5 Rc2 Kd7 Nd6+ Kd8 Nb7+
r2Qrb2/q2N4/kB1b1P2/pR4q1/Pp5N/RqnKBR2/1R2Q1B1/2n1bB2 w - - 0 1 legal: proof: g4 c5 e4 f5 b4 g5 bxc5 d5 gxf5 g4 h3 g3 Ba6 Be6 Be2 dxe4 Bf1 Bf7 Qg4 Bh5 Qd1 Bg4 hxg4 Qd7 Rh5 Qd5 Rh1 Qd8 Ke2 Kd7 c4 Kc6 f4 b5 d4 Kb7 a4 e5 d5 a5 d6 h5 g5 g2 d7 e3 g6 b4 f6 e4 g7 h4 f5 h3 c6+ Kb6 f7 h2 c5+ Ka7 c7 Ne7 c8R Nec6 g8B Qb6 d8B Ka6 Nf3 g1Q Nbd2 Qg4 Ra3 Qg5 Nh4 Na7 c6 Nb5 c7 Nd7 Nb3 Qa7 Rb8 Ne5 c8R Nd3 f6 Qb7 Bg2 Qa7 Rf1 h1Q Bb6 Qh3 Rc2 Qhg3 Rf3 Nc3+ Kf1 Qh3 Rb2 Qhg3 Bd2 Nc1 Rb7 N1a2 Qe2+ Qb5 Bh7 Qd3 Bf5 Qg5 Bfh3 Qc4 Ke1 Rg8 Bf1 Rh8 Bhg2 Qd3 Qd1 e2 Bde3 Qc4 Kd2 e1B+ Kc2 Bg3 Qe2 Bgd6 Kd2 Bg7 Kc2 Rhe8 f8Q Bh6 Qe7 Bf8 Qd8 Qg8 Bc7 Qg5 Rb5 Qe6 Bcb6 Qeg8 Bg1 e3 Kd3 Qe6 Nd4 Qb3 Nc6 Qf4 Ne5 Qg5 Qd1 e2 Nd7 e1B Bge3 Bd2 Qc2 Be1 Qe2 Nc1+
B2Nqkn1/b1Q2B1B/NNr1Rp1R/1p5P/N1Q1n3/1B3P2/r4r2/1Knq1b2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 h4 b6 h3 gxh3 Ke7 h4 Ke8 h5 Bb4+ Bd2 Be7 Bc1 Bf8 b4 Ne7 b5 Rg8 b7 Na6 b8N Ng6 b6 Ne7 b7 Rh8 Be3 Ng8 Bb6 cxb6 Kd2 d5 Kc1 g5 c4 g4 h4 g3 e4 d4 e6 g2 f3 d3 e5 f6 h6 b5 e7 Rh7 c5 Rh8 c6 Qb6 c7 Qc5+ Qc2 Nb4 h7 a5 Qc4 a4 Na6 a3 b8Q a2 Nd2 Nc6 Ne2 g1Q Nc3 Qg6 Na4 Kd7 e8B+ Ke7 e6 Bh6 Bf7 Qd5 Be2 Qge4 Bd1 Ne5 Bb3 Be3 Rb1 Bd7 c8B a1R Qbc7 Ra2 Bb7 Rc8 Ba8 Kf8 Re1 Ba7 e7+ Kg7 e8B Bh3 Bg6+ Kf8 Bef7 Bf1 Rb2 Qd8 Kb1 Qe8 Rc2 Qe2 Rcc1 Qd1 Re4 Nc6 Re6 Nd4 Bge4 Ne2 Bf5 Ne7 h5 Rg8 h8N Rg2 Bh7 Rf2 Q4c6 Bb8 Nc4 d2 Ncb6 Ba7 Qc4 Ng8 Q4c6 Qe1 Qc4 d1N Rc2 Nc1 Rce2 Rh2 Rg2 Nf2 Rg6 Ne4 Rh6 Rhc2 Bfg6 Rh2 Nf7 Qd1 Nd8 Rhg2 Bf7 Rgf2 Qb7 Rc5 Qc7 Rc6
b4q2/3B3q/rQRRnpp1/4P1nq/1b1B2N1/1rb2BB1/QPk4K/QN3Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg2 a5 h4 c5 d4 c4 e4 c3 e6+ Kd6 h5 c2 e7 g6 e8B f6 h6 g3 b6 a4 h7 a3 b7 a2 Be3 c1Q Bd7 Nc6 b8B+ Qc7 Nf3 Bb7 Be2 Nh6 Ne5 Nf7 Ng4 Ng5 Qf1 Qd1 Bf3 Ra6 Rh5 Rg8 h8Q Nh3 Rh7 Rg7 Qg8 Ba8 Kh1 g2+ Kh2 Qe2 Bf2 Nd8 e5+ Ke7 Ba7 Ne6 Bg3 g1B+ Kh1 Bf2 Kh2 Qd1 Rh8 Be1 d6+ Kd8 d5 Bc3 Bd4 Qc5 Bc6 Rb7 d7 Kc7 d6+ Kb6 Rh7 Ka5 d8Q+ Kb4 d7 Kb3 Qb6+ Qb4 d8Q Kc2 Rd7 Qa3 Qa7 Rb3 Qdb6 Bfb4 Rd6 Qe2+ Bg2 Qf3 Bd7 Qf5 Bf3 Qh5 Nd2 Qh7 Re1 a1Q Nb1 Ba5 Rc6 Qf8 Rd1 Bb4 Qf7 Ng7 Qd5 Ne6 Qda5 Qh5 Qa2 Qh7 Bdf2 Qh5 Rdd6 Qh7 Bd4 Qh5 Nd2 Qc1 Nb1 Qch6 Qba5 Qh7 Q7b6 Qc8 Qa1 Qf8 Q5a2 Nhg5+
n5qQ/1Kn4N/2p1r3/P2bbNRB/1QB4B/2P2B2/N1R1q1pb/2N1r1kr w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 e5 dxe5 h5 g4 hxg4 b4 Qf6 bxa5 Qd8 Kd2 Kf7 Kd3 g5 Kc4 b5+ Kd5 d6 a4 b4 f4 b3 h4 b2 a6 g3 h5 g4 a7 g2 a5 g3 h6 Be7 f6 Kg6 h7 Kf5 f7 Qd7 f8N Bf6 e6 Bg7 e7 Qe8 Rh2 Be5 Ng6 Nd7 Kc6 Ke4 f5 d5 f6 d4 f7 d3 f8N d2 Nc3+ Ke3 Nh4 Kf2 Nge2 b1R Na2 Ngf6 c3 Nd5 Qa4 d1Q Bg5 Qd2 Bf6 Re1 Nec1 Kg1 Qb4 Qe2 Nf5 Qd8 e8B N7b6 Bh4 Be6 Bf7 Rc8 Rb1 Na8 Kb7 Qg5 Bg6 Re8 Bh5 Qg8 Rb2 Bf7 Rc2 Re6 Rh1+ Kf2 Rh3 g1B Rh1 Bh2 Rg1 Qd2 Bc4 Qe2 Rf1+ Kg2 Rf4 Kg1 Rg4 g2 Rg5 Bg6 Ne3 Be4 Nf5 Nab6 a8B Bf3 Ka6 Be4 Bc6 Na8 Kb7 Bf3 Bce8 Be4 Bf3 c6 Bg6 Ndc7 Bgh5 Qf7 Rd2 Bd5 Rc2 Rg8 h8Q Rg7 Ne7 Qg8 Nh7 Rgg6 Rf5 Rg3 Rg5 Rh3 Nf5 Bhg3 Bb5 Rh1 Bc4 Bh2
qB2Q2r/R4N2/1P3r1n/1Pp2Q2/2Q2p1N/1bn3kN/bKRQBb2/q2r2N1 w - - 0 1 illegal: No possible last move
2Rnq1k1/R7/rp3Q2/1n1NbBK1/1B1q1Qrp/1PnPQ2N/2qQ4/2N1bN2 w - - 0 1 illegal: No possible last move, all moves rejected
r3k1bq/4q1bR/1p1r2nR/1N4p1/1KQ5/2PBQqPR/1N4BN/Nn1n3R w - - 0 1 illegal: No extended proof kernel
2k5/nqN4r/p2q1RB1/nN1pR1K1/4Nb1n/QrPq1N1R/4P1Q1/3RB2b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 d5 Kg3 Kd7 Kg4 g5 h4 d3 b4 a6 b6 f6 h6 d2 c3 Qe8 e6+ Kd8 b7 Qd7 h7 Qb5 h5 Qa5 b5 Ba3 h6 Bb4 b6 Qb5 Bh3 Ra7 Qb3 d1Q Bd2 Bd6 Nf3 Bf4 Be1 Nc6 b8N Na5 b7 Ne7 Nd7 Nec6 b8R Rb7 Na3 Na7 Nc5 Qdd3 Rd1 f5+ Kh5 g4 e7+ Kc7 Rf1 g3 Ne4 g2 e8N+ Kd8 Kh4 g1N Nc7 Qb6 Qb2 Qd6 Nab5 Kd7 Qa3 Kd8 Nbd4 Rb3 Ndb5 Kd7 Bg4 Kd8 Rb7 Be6 Rb6 Kc8 Bh5 Bg8 Be8 Bf7 Rc6 Bh5 Bg6 Bg4 Rb6 Bh3 Rc6 Bg2 Rc4 Bh1 Rf2 Rd8 h8R Rf8 Rh7 Rh8 Re7 Rh7 Re5 Bh2 Kg5 f4 Rc6 Bg3 Rg2 Bh2 Rg4 Bg3 Rh4 Bh2 Nfd4 f3 Rh3 f2 Nf3 f1Q Rb6 Qf2 Rc6 Qfc5 Rb6 Qd7 Rbe6 Qcd6 Rf6 Re7 h7 Bf4+ Kh5 Q7c6 Kh4 Qb7 h8Q+ Qd8 Qh6 Qd6 Qg5 Rf7 Qg2 Rg7 Nfg5 Nf3+ Kh5 Nh4 Nf3 Rh7+ Kg4 Bh2 Kg5 Bf4+
1KR1q2n/NBbqQrk1/p1BnQ2R/3pn2B/Q1Q3B1/1P1P4/q1r5/5bN1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 c4 axb5 c3 b3 Qa5 Ba3 Qd8 Bb2 cxb2 Ke2 Kf7 Kf3 e5 Ke4 h5 Kd5 a6 c4 h4 f4 d6 g4 h3 b6 h2 f6 e4 f5 e3 b7 e2 c5 e1Q g6+ Ke8 g5 Rh7 g7 Kf7 c6 Nd7 b8Q Qg3 g6+ Ke8 c7 Qe1 Kc6 d5 f7+ Ke7 f6+ Ke6 Qb6 Ra7 Bb5 Qe8 d3 Qe3 Qg4+ Ke5 Qa4 Qd4 Nc3 Rh3 Rc1 Bc5 f8Q b1Q f7 Kf6 Qe7+ Kf5 f8Q+ Qf6+ Qe6+ Kg5 Qf7 Kh6 Qe7 Bd6 Qbd4 Qf5 Qdc4 Ne5+ Kb6 Re3 Bc6 Qa2 Nb5 Re2 Rc3 Bd7 c8B Rc2 B8b7 Qg4 Ba8 Rc7 Bab7 Qf5 Ka7 Qh3 Qd8 Ne7 g8B Kg7 Kb8 Qf5 Na7 Qff7 Qeg4 Bc8 Qe2 Bh3 Qe1 Qe6 Bf7 Q6d7 Be6 Bf1 Bg4 Ng8 Qc8 Nh6 Qh4 Nhf7 Qe7 Kh6 g7 Nh8 g8B Kg6 Ne2 Kh6 Bf7 Kg7 Rg1 h1N Bfh5+ Kg8 Rg2 Nf2 Rh2 Ne4 Rh4 Bc5 Ng1 Bb6 Bf7+ Kg7 Rh6 Nd6 Bfh5+ Qf7 Qed8 Qde8 Qf5 Re7 Qe6 Qd7 Qc7 Qf8+ Qd8 Rf7 Qde8 Bd8 Q8e7 Qfe8 Qf4 Ne4 Bb5 Ng5 Rc8 Ne4 B5c6 Nd6 Qfc4 Bc7+
1NQ2qB1/B3r1kP/1K2Qrqn/n2p1R2/Rp1b3P/4Rr2/Q4nb1/N4Q1R w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 e5 Kc4 g5 Kb5 g4 c4 e4 a4 g3 f4 g2 h4 e3 h6 b3 a5 d6 h7 e2 a6 e1N a7 b2 f6 b6 f5 Qd7+ c6 Nd3 c5 Qe6 c7 Nf2 c6 Bd7 c8Q Ng4 Nd2 b1R+ Nb3 Nf2 Bc4 Bg7 Ne2 g1Q Nd4 Ne4 Qf1 Ng3 Ra4 Nh6 Be3 Re1 Na1 Qf2 Qa6 Kf8 f7 Ne4 Bd5 Bc8 c7 Qg6 Nc6 Bd4 Bc4 Bd7 c8Q+ Kg7 f8R Qf3 Rd8 Nf2 Re8 Rf8 Bg8 Rf6 Re5 Be8 Qe6 d5 Qac8 Bd7 Re4 Nfg4 Bg1 Nf2 Re3 Re2 Kb4 b5 Ka5 b4 Kb5 Re1 Ka5 Na6 Nb8 Nc5 Kb6 Nb3+ Kb7 Rf8 Ka6 Na5 f6+ Kh8 f7 Kg7 Qb6 Bg4 Qbe6 Bh3 Kb5 Bg2 Ka6 Re8 f8R Re7 Rf5 Rd1 Qc2 Rd3 Qa2 Bf6 Kb6 Ra3 Nc6 Rf8 a8Q Be5 Qac8 Rf6 Nb8 Qf4 Re4 Rf3 Re1 Nfg4 Bc5 Bd4 Re3 Qd6+ Kb5 Qd8 Ba7 Qf8 Ka6 Nf2 Kb5 Bc3 Kb6 Bd4+
N3kq1Q/RQ3R1p/1rnbb2Q/p2B1P2/2b2B1P/N1r1Q2B/1q1n3q/KB6 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 d5 Kc3 g5 Kb2 a6 c4 g3 h4 g4 e4 g2 f4 d4 b6 g3 c6 d3 c5 d2 c7 Bh3 c8Q Ra7 c6 Ke7 b7 Qd7 e6 Qd6 e5 Qd3 c7 Nh6 Ne2 g1Q Nd4 g2 Na3 Bg7 Qh5 d1B Ndb5 Qg6 Bd3 Re8 Bb1 Ng8 Qh6 Qc5 Rf1 Nc6 b8Q g1Q Qbb7 Kf8 e7+ Kf7 Qcb8 Nf6 c8B Bf8 Nc7 Ne4 Na8 Nd2 Ka2 Be2 e6+ Kf6 Bd7 Rc8 e8Q Qh2 e7 Be6+ Kb2 Qd6 Ra2 B2c4 Ka1 Rc7 Qbd8 Rc8 Qdb6 Qb8 Qe3 Rc7 Qec8 Kf7 e8B+ Ke7 Bf7 Qf5 Bg6 Qc5 Bge4 Kf7 Qd8 Bd6 Qh8 Qb4 Bd5 Qf8 Rg1 Ke7 Rg7+ Kd8 Rf7 a5 Rc2 Ra6 Bc8 Nf1 Rg2 Nd2 Rgg7 Rb6 Bd7 Bf5 B7e6 Ke8 Bc8+ Be4 Bh3 Qb3 f5 Qb4 Bb2 Rc8 Be5 Bed3 Be4 Be6 Bd5 Bc4 Bf4 Na7 Rd7 Be2 Qa6 Rc3 Rgf7 Nc6 Ra7 Bc4 Qb7 Qb2#
b1Kb4/4nQpP/QQ1pbQN1/rq1R2B1/N2n2P1/knN2N2/1qR5/1r4B1 w - - 0 1 illegal: No possible last move
N2B3b/qK1PRQ1R/3rN3/1Rq1n1Q1/b3pQP1/pR4n1/q7/QBr3kn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 a5 g4 e5 d4+ Kb6 b4 h5 d6 c5 Kd5 h3 f6 a4 d7 e4 f5 h4 f7 c4 f6 c3 Ne2 h2 Bg5 c2 Nd2 c1Q Nf4 h3 Ne6 Na6 Nc4+ Ka7 Kc6 Rh4 d5 Nc5 d6 Bg7 f8Q Qa5 d8Q Nd7 f7 Nh6 Bd3 Nf5 Bb1 Rh6 b6+ Ka6 b7 a3 b8R Ng3 Rb7 Bh8 Qd4 Qb2 Nb6 Qa2 Qde7 Ra7 Na8 Rf6 Qfe8 Rf1 Qc3 Rc1 Rc7 Rb7 f8Q Rb5 Qe8f7 Rd5 Qf4 Rd2 Q8f7 Rd4 Rd1 h1N Rd3 h2 Qef6 Rd5 Qc5 Rd4 Rb3 Rd2 Qd4 Rd3 Bd8 Ne5+ Kd5 Rdd1 Re7 Bd7 b5+ Kb7 b6 Rd3 Bc7 Ba4 d7 Rdd1 Kd6 Ka6 Bd8 Rd2 Kc7 Rdd1 Qg1 Rd6 Qc6 Qc5 b7+ Ka5 Rc3 Kb4 Rb3+ Kc4 Rb5 Kc3 b8R Kc4 Kb7 Kc3 Q4f5 Kd2 Qg5+ Ke2 Qd4 Ke1 Qc7 Ke2 Nf4+ Kf1 Ne6+ Kg2 Qc3 Kg1 Rb3 Qc2 Ra2 Qa5 Qa1 Qcc5 Rab2 Nf2 Rb5 h1Q R2b3 Qh2 Rc8 Nfh1 Rb8 Nf5 Rh3 Nfg3 Rh7 Rc6 Qd6 Qa2 Qdd2 Ra6 Qdf4 Rd6 Rc8 Qe3 Rc3 Qc5 Rcb3 Qaa7#
4B3/B1rP2qR/1K3bQr/2qb2P1/QQpn4/2n2p2/3B1k1B/N1Rbn1NQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 d4 Kd6 b4 c5 g4 a5 e4 h5 b6 f5 g6 f3 Ke3 a4 e5+ Ke7 g7 f2 d6+ Ke6 b5 Kd5 g5 a3 d7 a2 b7 h4 e6 h3 e7 h2 e8Q Qb6 d8B Ne7 Na3 Rh6 Bc7 Nbc6 b8Q Ra7 Bd2 f4+ Kd3 f3 g8Q+ Be6 Qgg6 Bg7 Rc1 a1Q Nc2 Bf6 Bh3 Qb2 Na1 f1B+ Ke3 Bf7 Bd7 c4 Be5 Qc5 b6 Be2 b7 Be6 Qa4 Bd1 Qh8 Bg8 Qf8 Be6 b8B Rc7 Ba7 Bf7 Qb8 Bg8 Be8 Bf7 Qbb4 Be6 Qh5 Bf7 Kf2 Ke4 Qg8 Bd5 Qgg6+ Nf5 Bd6 Ne7 Bg3 Bc6 Bd6 Nd5 Be5 Nc3 Bd6 Qe5 d5 Qe7 Qh3 Qg7 Bf4 Qa3 d6 Ba8 d7 Bd5 Qf7 Nd4 Qf1 Kf5 Qg6+ Kg4 Bd6 Nc2 Be5 Ne1 Ke3 Kh4 Kd4 Kg4 Qc6 Kh4 Kc5 Kg4 Kb6 Kh4 Bd4 Kg3 Qfd3 Kg2 Be5 Kf2 Qca4 Nb5 Ne2 Nd4 Qdb1 Qe3 Rg1 h1N Bh2 Ng3 Rh1 Ne4 Ng1 Nc3 Bd6 Rh8 Rh7 Qee7 Bh2 Qc5+ Ka6 Nde2 Rh5 Qd4 Rc2 Qc5 Rh3 Nd4 Ne2 Nd3 Rh4 Ne4 Rc3 Bb3 Qh1 Bc2 Ng1 Bd1 Rc1 Nc3 Rh5 Ne1 Rh4 Qcf8 Kb6 Rh7 Rg4 Rh3 Rh4 Qfe7 Rh8 Rh6 Rh7 Qc5+
NRN1NBbK/1b1pNRP1/q2p2q1/5b2/Q5r1/nBR5/rk1P1nq1/3Q1R2 w - - 0 1 illegal: No proof kernel
1K4rN/RBPBRpR1/P4q2/1N1q1B2/1B3brk/Q1pb4/1qnR1nr1/6Q1 w - - 0 1 illegal: No possible last move
B1b5/1PB5/n1rrrb1N/1k2P2N/1q3RNp/8/1B1qpQQb/1KNR1B1n w - - 0 1 illegal: No proof kernel
2Bnnq2/Qprr1B1Q/2b2B1R/b5r1/1R1pq3/1KNkq3/P1R1RP2/5N1B w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 f6 g5 c6 e5 h6 d5 h7 g4 f7 g3 c5 g2 h5 d4 c7 Qd6 c6 Qe7 h6 Na6 Nf3 g1Q Bg5 Qg4 Bg2 Bd7 c8B Nf6 c7 Ne8 Kb3 Nb8 Nfd2+ Kd3 Nc3 e4 Bf6 e3 Rb1 e2 Re1 Ra5 Bh1 Bc6 Be6 Rg5 c8B Qe4 Qc1 Rhg8 h8Q R8g7 Qa3 Qc5 Rec1 e1Q h7 Q1e3 Nf1 Be7 f8R Bd8 Rc2 Rd7 Rg8 Qf8 Qa7 Bc7 Bf7 Ba5 Kb2 b3 Qg7 Bb5 h8R Nc6 Rh6 Nd8 Qh7 Bc6 Rg7 Qh8 Ka3 b2 Kb3 Qf8 Rgg6 Rc7 Re1 Rd7 Ree2 b1R+ Rb2 Rc1 Rbc2 Rg3 Rg5 Rg1 Rb5 Rg5 Rb4 Rg7 Ng3 Rg1 Nf1 R1g5 Bg6 Rc7 Bh5 Rge7 Bf7 Red7
1R2RQr1/P1N1N1K1/5nQ1/1RrR2pb/4Q3/3n1q2/kpQbP1rB/q1n2B2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 b5 Kd4 f5 a4 g5 h4 b3 d6 Kc6 a5 f4 h6 b2 a6 f3 d7 f2 h5 b4 h7 Kb5 h6 c6 e6 c5+ Ke5 Kc4 d4 b3 e7 Bb7 e8Q Bc8 a7 Na6 d5 Kb4 d6 c4 Ra5 c3 Na3 b1N Qc2 b2 Qeg6 Nc7 Nf3 Ne6 Nb5 Nf4 Nh4 Nd2 Nf5 Nf6 Nc7 Nb3 Rb5+ Ka3 Ne7 Ka2 Be3 Qe8 d8R Nc1 d7 Qf7 Re8 Nfd3+ Kf5 Bb7 d8R Bf3 Rdb8 Bh5 Bf4 Qd5+ Be5 Qf3+ Ke6 Bg7 Kf7 Bf8 Bh2 Bg7 Bh3 f1R Bg2 Rg1 Bf1 Rg2 Rg1 Rg8 h8Q Bf8 Qh7 Rh8 R8b7 Rd8 Rb8 Rd5 Rh1 Rc5 Rg1 Rf2 Rg4 Rg2 Rd4 Bg7 Rd5 Bf8 Nf5 Bd6 Kg7 Bf4 Ne7 Bd2 Qe4 Ka3 Qhg6 Ka2 Qd1 c2 h7 Be3 Qd2 Bf4 Qc3 Bd2 Qcc4+ Nb3 Qc3 c1Q Qcc4 Qa1 Qc2 Rf8 h8Q Nbc1 Qhh7 Rh8 Qg8 Ba5 Q8f7 Bd2 Qf8 Rg8+
QQN1R3/2b3p1/2b1PR1R/pRbqk1B1/1r2bnB1/3Pb1n1/2rN2K1/1Q5Q w - - 0 1 illegal: No possible last move
b2K2r1/RB3P1p/b4pR1/1B1R1QP1/1BBb3k/2b2rN1/2q1b3/1nQ1N1Rn w - - 0 1 illegal: No proof kernel
qrn1k2B/b1P3KB/P2pn3/R4Q2/1b4NR/2p5/2QNR1br/bQbQ2R1 w - - 0 1 illegal: No possible last move, all moves rejected
1rr1bR2/qrQB3n/2P1K3/1nNB2BR/2pP3p/7b/1b2bNN1/Q2NB1k1 w - - 0 1 illegal: No possible last move
bQ1NN1r1/br1b2R1/2p3r1/1R5B/PqQ5/p4NPb/1NKB2k1/n2QQ1n1 w - - 0 1 illegal: No proof kernel
2R1K2B/r3R1bN/brp1rPB1/3N1pP1/n2R2nQ/kB1q4/3QR3/4nnB1 w - - 0 1 illegal: No proof kernel
B2q1rk1/2B1Q3/1P2nb1R/K1r5/RP5N/Bp3rpb/NNQ1b2n/3r2BN w - - 0 1 illegal: No proof kernel
1Qr3n1/1b4R1/1P1K4/2PBQ1B1/1nNBB2R/1pb1b2q/pR1r1kbR/3nN3 w - - 0 1 illegal: No proof kernel
2rb2B1/2bNn3/P1q1RpQ1/2r1Bn2/R1npN1r1/1Q3K1r/3PB1BN/1N4k1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 b4 Qb3 Ba6 Qd1 a4 b3 Bb5 cxb5 axb3 Kf2 Ke7 e4 Ke6 a4 c5 h4 d5 h6 g5 h5 c4 b6 g4 h7 g3+ Kf3 f6 h6 c3 a5 g2 b7 c2 a6 b2 Ra4 b3 Be2 Nc6 b8N Be7 Nd7 Qb6 Rh4 Kf7 e6+ Kg6 e5 Kg5 Rhe4 Bd8 e7 Rc8 e8B Nge7 e6 Nf5 Bf7 Nce7 Bg8 Qc6 Re3 Ng6 e7 d4+ Re4 Kh5 e8B Kg5 Bef7 Nge7 Bd5 Kh5 Re6 Kh4 Bf7 Rg8 h8Q Rg5 h7 Rg4 Nh3 g1B Bg8 Bf2 Ng1 Bg3 Qg7 Bh2 h8N Bhc7 Na3 b1R Nf7 b2 Nd6 Ra1 Qg6 b1N Ne4 Ra2 Bb2 c1R Qb3 Rc5 Bc3 Rc2 Ba5 Rc1 Bb6 R1c2 Ba7 R2c4 Bb8 Rc3+ Kf2 Re3 Nf3+ Kh3 Nh2 Reg3 Nb5 Rd3 Nbc3 Na3 Nb1 Rdc3 Ne5 Nc4 Nd7 Bb6 Be5 Bbc7 Ke1 Kg2 Kd1 Qd6 Ke1 Kh1 Kf2 Rh3 Bc6 Rhh4 Kf3 Kg1 Bf1 Rh6 Bb5 Qc6 Bg2 Nb6 Bd3 Nc4 Be2 Rh3+
4BNnb/N1n1nqQ1/pb3PpR/1B2N3/r1bBRr2/3bP3/8/QB1Nk1K1 w - - 0 1 illegal: No proof kernel
3R4/rN2K1pQ/2n1b1Qr/4Q2n/1QnP4/P5b1/2BprqRB/n1NNNk2 w - - 0 1 illegal: No proof kernel
1B1nB1K1/bR1nk1p1/1N3r2/1Pr1p2N/n1QQ4/R1b2N2/1qbP1n1R/5N1R w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 e5 Kd3 c5 Kc4 a5 f4 g3 h4 a4 b4 g2 f6 a3 h5 a2 f5 Ra5 h6 Ra8 d6 Na6 Kd5 c4 f7+ Kd7 f6 c3 b6 c2 b7 Ra7 b8R Qe7 h7 Nc5 Na3 Ra5 Rb7+ Kd8 d7 Ra6 Qe2 Ra7 Nf3 g1N Nc4 Ne6 Ne3 Ra3 Qc4 Ra6 Ba3 c1N b5 Nh3 Bd3 Rb6 Bd6 Nb3 Bb8 Nc1 Bg6 Nb3 Nf1 Qb4 Bh5 Bc5 f8N Bf2 f7 Nbc5 Ng6 Qb2 f8N Na4 Nf4 Ke7 Be8 Nd8 Nh5 Rf6 Rh2 Ba7 Rh1 Nh6 Rh2 Rg8 h8R Nf2 Rh7 Nhg4 Rh6 Rf7 Ra6 Rf6 Rc1 Nc5 Ra3 a1B Qb3 Nc6 Ne3 Rh6 Qc4 Qb4 Rch1 Bc3 Nf1 Qb2 Bf7 Na4 Bg6 Kd8 Ke6 Nf6 Nh7 Re8+ Kf7 Re6 Nf8 Rd6 Bb1 Rd5 Bc2 Rc5 Bg6 N6e4 Kg8 Ke7 Bf7 Rd6 Be8 Nf6+ Kh8 Nd5 Kg8 Rf6 Ne6 Ndb6 Nc7 Kd6 d8Q+ Bd7 Qc8 Ke7 Na8 Nd8 Qc6 Nd3 Q6d5 Nf2 Bc7 Bh3 Bb8+ Nd7 Qdd4 Bf5 Nb6 Bc2
1Nk1rb1R/4BP2/2b1p2P/3Q3n/1n1N1rp1/4qBN1/nB1n1NK1/1bQ1R1B1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 c4 g5 b4 d5 f4 Kd7 Kf2 e6 h6 d3 h7 a4 c5 d4 b6 g4 b5 a3 c6+ Ke7 c7 Kd7 h5 a2 f6 d2 f5 d3 f7 Ra3 f6 Nh6 b7 Rg8 h8B Qe8 b6 Bg7 f8B Qe7 f7 Nf5 Be2 Na6 Bb2 Qc5+ Kg2 Qe3 Nh3 Nb4 Be7 Ra4 Nc3 Re8 Nf2 Ng3 Bf3 Bf8 h6 Nh5 Bd4 Qg5 Qc1 d1N Re1 d2 Ne2 Nc3 Ng3 d1B b8Q Ba6 c8N Bd3 b7 Qe3 Na7 Bb1 Qa8 Bdc2 Nc6 Be4 b8N+ Kc8 Bdc5 Bd5 Nd4 Bc6 Rg1 Bg6 Rb1 a1N Re1 Nb3 Bb6 Nd2 Qa5 Nca2 Qd5 Ra7 Ra1 Rc7 Ba7 Bb1 Bac5 Nc3 Ra8 Nca2 Bcd6 Bb7 Nb5 Bg7 Na6+ Kd7 Ngh1 Rc4 Rb8 Re4 Nd4 Bc6 Ra8 Rh8 Bb8+ Kc8 Bh2+ Kb7 Bg1 Rf4 Ng3 Rf8 Rd8 Rg8 Nb8 Kc7 Rd6 Rc8 Rd8 Kb7 Rh8 Bf8 Ba3 Re8 Bb2 Kc8
2rRB2r/1k3pn1/1B2BbrR/p2RP3/R2Q4/1nNbQ1N1/K2P4/r1b2q1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 b4 Kd7 e4 c5 g4 Kc7 e5 a5 b6+ Kb7 g6 h5 b5 h4 g5 c4 d6 h3 d7 f3 g7 c3 g6 c2 Ba3 c1B Bc5 h2 Ne2 Na6 Qb3 f2+ Kd1 Ne7 Kc2 Nc6 g8B Rh7 g7 Nab8 Ra4 Na6 Qe3 Qh4 Kb3 Kb8 d8Q Ra7 b7 Ra8 Nbc3 Rh6 Qdd4 Nd8 Ka2 Be7 Bh7 Qf4 g8B Ba3 Bf5 Ne6 Bgh7 Ng7 Ng3 Bf6 Bg4 Kc7 b8R Bf5 b6+ Kc6 Rf8 Rc8 b7 Qf3 Be2 f1R Bb5+ Kc7 b8R Rb1 Bd7 Bc1 Rb5 Qf1 Rd8 Bd3 Be4 Rg6 Bb6+ Kb8 Bdc6 Nc5 Be8 Nb3 Rbd5 Ka8 Be6 Kb7 Rg1 h1R Bf3 Rhh6 Rh1 Rh7 Rh6 Rh8 Bh1 Ra1+
2br2B1/4P2n/2Kp2Nq/1B1bQQ2/Nr3N2/nPb1BRR1/4p2N/B2k1nn1 w - - 0 1 illegal: No proof kernel
2KR1Q1b/4PBPB/n1N1q3/1r1r1n2/bR1b4/kr3pBN/3bQ2p/1B1RR3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Ke7 Ke3 f5 Kf4 h5 g4 c5 e4 a5 b4 c3 d4 c4 e6 Kd6 e7 c2 e8B h4 e5+ Kd5 e6 h3 b6 c3 g6 a4 e7 h2 b5 a3 g5 a2 b7 Rh6 b6 Ra4 g7 Rf6 g6 Nd7 b8Q Ra7 b7 Ra8 Bd3 Nh6 Qe2 Nc5 Nd2 Ra5 Ndf3 Qd7 g8B+ Qe6 Nh3 Na6 Re1 Rb5 Bef7 Bg7 Bh7 Bh8 g7 Bd7 Ne5 Bc6 Kg5 f4 Qf8 f3 b8R Nf5 Bf4 c1R Bb1 c2 Bg3 Rd1 Kg4 Be8 Nc6 c1B Rb6 Rb3 Rb4 Rd2 Kf4 Rg6 Rd1 Rg5 Re1 Kd6 d5 Kc5 d6 Rh5 d7 Rd5+ Kg4 Bd2 d8R Bd7 Be4 Be8 Rad1 a1B Bb1 Bd4 Ng5 Ne3+ Kf4 B2c3 Nb8 Ba4 Nh3 Bd2 Nc6 Rd7 Rbb8 Rd3 Rb2 Kc4 Rb3 Rb5 Rb4+ Kc3 Rc4+ Kb2 Rb4+ Qb3 Ke4 Ka3 Kf4 Nf5+ Ke4 Bc5 Ke5 Qc4 Kf6 Rb3 Ke5 Qd3 Ke6 Bd4 Qe4 Rdd5 Qe2 Rdc5 Kd7 Rd5+ Kc8 Qe4 Ba2 Qe3 Bb1 Qe6+
1r2B3/4p3/rQrNR3/1R2N1kq/2Q3P1/2n1bPK1/b2Nbrnp/2B1RR1N w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kf6 d4 h5 d6 a5 d7 c5 d5 a4 b6 a3 b5 h3 d6 h4 b7 a2 b6 c4 Qa4 c3 Nd2 c2 Qc4 h2 Ne2 h3 Ng3 Nc6 b8Q Qe8 d8R Ba6 b7 Na7 d7 Kg5 f6 Bh6 f7 Nf6 f8N Nb5 Ng6 Nh5 Ne5 Rf8 Rc8 Nc3 d8N Nf4 Rc6 Rf6 Re6 Qh5 Be2 Rf8 Rf1 h1B Qa7 h2 b8R Bb5 Qb6 Bd5 Nb7 Ba6 Rb1 a1R Nd6 Rf5 Rb7 Rb8 Nh1 Bb5 Bf3 Ra6 Be4 Rff8 Bg6 Rf5 Be8 Rf7 Qcc6 Be2 Qcc7 Bb3 Qc4 Ba2 Rb5 Rf6 f3 Ng2+ Kf2 Rg6 Ba3 c1R Kg3 Re1 Bc1 Rf6 Rg1 Rf1 Rc7 Rf2 Rf1 Rf8 Rcc5 Rc8 Rb1 Rc6 Rcb5 Rg8 Ba3 Rh8 Rbe1 Rf8 Bc1 Rg8 Bg6 Rb8 Be8 Bg7 Nd7+ Nd5 Re3 Bd4 Re6 Be3 Ne5 Nc3
B3r1RQ/2BP3Q/1Nnr1bBN/q1p5/3rp3/QPB1Q3/2b3rR/2K1nk1n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 d4 Kf6 Kd2 Kg5 f4+ Kh6 f6 a5 g5+ Kg6 b3 Kf5 d6 Ke4 f7 h5 g6 e5 g7 c6 f5 h3 f6 h4 d7 h2 d5 a4 b6 h3 b7 a3 d6 a2 Qe1+ Kf4 Bg2 Rh4 Bb2 Qc7 d8Q Ra7 Na3 Na6 b8B Ne7 g8B Nb4 Kc1 Ra6 Nc4 Bg7 f8Q Bf5 d7 Bc2 f7 Qa5 Nb6 Bf6 Ne2+ Ke3 Qg7 Rd4 f8Q c5 Ba8 e4 Qh7 Kd3 Bc7 Nec6 Bf7 Ke3 Qc3+ Kf2 Ng3 Kg2 Rb1 a1R Qfh8 Ra2 Bg6 Kf2 Rg1 h1N Nf5 h2 Nh6 Ke2 Rg5 Kf1 Ba1 Rb2 Qe3 Ra2 Bc3 Nd3+ Kd2+ Ne1+ Kc1 Rb2 Qb8 Ra2 Qa7 Rb2 Nc8 Ra2 Rb2 Rb6 Rg2 Rb8 Nb6 Re8 Bf5 Rd6 Rg8 Ra4 Bg6 Rad4 Qb8 Nf2 Qa7 h1R Ra2 Rh2 Rb2 Nh1 Qa6+ Qb5 Qa3 Rg2 Ra2 Qa5 Rb2 Bd3 Re2 Bc2 Rd2 Rg1 Rh2 Rg2
6NK/2Bpnb1r/1B2nb1P/2B1qR2/3r1pN1/1B1b1kN1/P4N1R/4QQrb w - - 0 1 illegal: No proof kernel
8/NP2QnqB/N1b4r/2N3BK/1rp1bP2/1p1b1B1k/nb3R2/1RQ1N1rB w - - 0 1 illegal: No proof kernel
2n1bN2/1pn1Q3/1r3rKN/p4B1N/2P1rBBr/2R1n2Q/1RPb3q/4k1NB w - - 0 1 illegal: No possible last move, all moves rejected
B3Q3/rp2p2P/3b1q2/PN2NR2/RR2nrr1/QN5k/NBK5/n1Rn1bn1 w - - 0 1 illegal: No possible last move
QR1rnR1R/Pr2kb2/1nbRB3/pQB4B/3p2b1/6bN/P2Kq3/1B4nN w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 c5 hxg5 Qb6 d4 cxd4 b5 Qa6 bxa6 Bh6 Bf4 Bg7 Bc1 Bf8 g4 h5 c4 d5 f4 b5 c5 e5 a7 d3 c6 h4 f6 e4 c7 b4 f7+ Kd7 g6 b3 f5 h3 g5 e3 f6 e2 g7 h2 g6 b2 Qa4+ Nc6 Be3 Ba3 f8R Bd6 f7 Rh7 Nc3 b1Q+ Kd2 e1N Qb5 Bg3 Be2 Nf6 g8B Ne8 g7 Ke7 Nh3 Ne5 Ne4 Nd7 Bh5 Nb6 Nef2 Bg4 c8R Qb3 Bd4 Qc4 Rb8 Be6 Rd1 Nf3+ Ke3 Ng1 Bc5+ Bd6 Kd2 d4 Rb1 Bg4 Rd8 Rb8 Rb3 Rh8 Bh7 Rb7 g8B Qe6 Bf5 Qe5 Bgh7 Rg8 Be6 Qe2+ Kc1 d2+ Kc2 d1B+ Kc1 Qe1 Bb1 Qf1 Kd2 Bdf3 Rb8 Bd5 Re3 Kf6 Re4 Bg3 Re5 Bc4 Rd5 Qg2 Rd6 Ke7 Qb4 Qf1 Qb5 Qe2+ Kc1 Rg7 Ng5 Qf3 Bef5 Rc7 Kd2 Bd3 Bhg6 Rd7 Rg8 Rd8 Bc8 Bdf5 Be6 Bh5 Bc2 Bfg4 Bb1 Nh3 Rf1 h1B Rh8 Ng1 Ngh3 Bg2 Nh1 Kf6 Qc6 Qf5 Qa8 Bc6 f8Q+ Rf7 Rf2 Qf3 Rf1 Ke5 Rf2 Rb7 Rf1 Qe4 Qf2 Qf3 Qe2+ Kf6 Qb5 Ke7 Rf2 Qe4 Rff8 Qf3 Bh7 Bf7 Bhg6 Qe4 Bh5 Qe2+
1k1NN1B1/N2b2r1/4B2n/4r1b1/KB3bp1/B1RqNq2/1RP1P1p1/b1QQn3 w - - 0 1 illegal: No proof kernel
2QB2Q1/4N2q/K3b1Rb/1P2N1nr/1p1RR1R1/r1r4p/1P1r2Bk/1NN1q1n1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 exf5 b4 Qc2 Qd7 Qd1 Qb5 axb5 Bg7 Be2 Bh6 Bf1 Bf8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 d4 h5 g4 c5 f6 e5 f5 a5 d6 h3 d5 a4 g5 h4 f7 a3 d7 a2 d8N h2 d6 Nh6 d7 Nc6 f6 Nd4 g6 Ra3 g7 Nf3 g8Q Rb3 Ne2 Ng1 Qc2+ Kf3 Nc6 e4 d8R e3 Ne7 Be6+ Rd5 Bg7 f8R Nf7 Re8 Ng5 f7 Rh5 f8N Bh6 Nd7 h3 Bg2+ Kg4 Nd4 Kg3 Ne5 e2 Be3 e1Q Ne2+ Kh4 Nc1 Kg3 Bd4 Qe4 Ned3 Qh7 Ne5 Ne2 Rg1 h1R Bf2+ Kh2 Be1 Bf7 Bh4 Be6 Re1 Ng1 Re4 Ne2 Qc3 Rd1 Rg4 Rd2 Qc2 Ng1 Qf5 Bd7 Rdd4 Bc8 Kd5 c4 Kc6 c3 Kb6 c2 Ka7 Be6 Ka6 Bf7 Qc8 Be6 Rf8 Bc4 Rf6 Be6 Ne2 c1R Rg6 Rc4 Nc1 Rcc3 Nd5 Nf7 Bd8 Ng5 Ne7 Nf7 Na3 Ng5 Rb1 a1Q Rge4 Qa2 Ra1 Qb1 Rg4 Qc2 Nb1 Qd1 Ra3 Rc4 Bh1 Rbd3 Be4 Qe1 Bg2 Rg3 Rf3 Rcc2 Rf5 Rb3 Rff4 Rcc3 Rfe4 Ra3+
N3QR1B/2q2qr1/4b1rp/B1KB4/4NQQB/1P2P1q1/kb2pRQ1/2n3nq w - - 0 1 illegal: No proof kernel
4Nkq1/2K1Nb1q/3N1bp1/1Qr3Qq/B5r1/n2NPn1R/2P1p1RB/B2B1q2 w - - 0 1 illegal: No proof kernel
Q1bK2RQ/n2q3n/kbQ1P3/bR6/1pR5/2qBRBb1/rP4p1/2N1NQ1r w - - 0 1 illegal: No possible last move
3Qb2N/rn1B2Pr/1RBBn2k/1Bbp1KN1/Rb1Q4/1q5p/Q4P1Q/2bq4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 Kg7 Ke4 e5 c4 h5 g4 a5 b4 d3 f6+ Kh7 c5 h4 f7 d6 c6 a4 g6+ Kg7 c7 d2 g5 a3 b6 h3 b7 a2 b5 Qf6 b6 Rh6 Ne2 Na6 b8Q Bg4 c8B Qe7 b7 Nc7 Qa7 Ne6 b8Q Qd7 Ba3 Rh7 Nf4 Qe7 Bd7 Qe8 Bfb5 Qe7 Nc3 Bh5 Kf5 Nf6 Ne4 Ne8 Qb1 d1Q Qd4 Ra4 Bdc6 d5 Bd6 Qa7 Qbb2 Qb3 Rhb1 Qa8 Qd8 Ra7 Qa3 Qd1 Qg3 Qb8 Qh2 Be7 Rb4 Qb7 Ra4 Qb8 Rb1 a1B Qa5 Bb2 Qad2 Bc1 Qa2 Nc5 Rb2 Nc7 Rb1 Qg8 Rb2 N7e6 f8Q+ Kh8 Rb1 Nb7 Qd8 Qe8 g7+ Kg8 Ba3 Bc5 Ng6 Kf7 g8B+ Kg7 Nh8 Qe7 g6 Kh6 g7 Be8 Ng5 e4 Qdd2 e3 Qd4 e2 Rb2 e1B Rb1 Bb6 Bd6 Bc5 Rb3 Beb4 Rb2 Nf4 Be6 Qb3 Bc8 Qe1 B8d7 Qed1 Qe5 Bc3 Bc4 Qa3 Qd4 Ne6 Rb6 Qab3 B4b5 B3b4
3K3r/6PN/3R3p/RbbNPn1r/1BQbkp2/3N4/NQQ1qQ2/n2B1b1q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 a5 b4 c5 g4 f6 d4 a4 b6 f3 g6 a3 g5 h6 b5 a2 g7 c4 g6 c3 b7 f2 b6 c2 Bd2 c1Q Qc2 Na6 b8Q+ Qc7 b7 Rh7 Nf3 Rh8 Ng5 Bh3 Nh7 Bd7 Qc8 Be8 Kf5 Qe7 b8Q+ Nc7 e4 Ra5 Bb4+ Rc5 Nc3 Ba4 Be2 f1B Bd1 Qe8 e5+ Ke7 Rg1 Qd8 d6+ Ke8 d5 Qe3 d7+ Ke7 Qa7 Qe8 d8N Qe2 Ne6 Qc6 Nf4 Qa8 Qb6 Be8 Nd3 Nb5 Qcb8 Na3 d6+ Kd7 Nd5 Rc4 Qf2 Kc6 Ke6 f5 d7 Ne7 g8Q f4 g7 Rc3 Qf7 Nf5 Rg6 Bc5 Kf6 Nc4 Qg8 Na5 Qf7 Nb3 Ke6 Qb7 d8N+ Kb5 Nc6 Kc4 Rb1 a1B Rb2 Qe3 Ra2 Qe2 Ra5 Bb2 Kf6 Na1 Qfc7 Bc1 Ke6 B1e3 Rf6 Bed4 Rg6 Bf7+ Kd7 Be8+ Kd8 Qa8 Rd6 Qb7 Qb2 Qa8 Qbc8 Ra3 Nc1 Rh3 Na2 Kd3 Qf7 Ke4 Qg6 Qaa6 Qgg2+ Qf3 Qfc2+ Qd3 Qgf2 Rh5 Qa6 Qh1 Qac4 Ng3 Be1 Nf5 Ncb4 Qf3 Qcc1 Qde2 Nd3 Qg2 Q1c2 Qh1 Bb4 Bb5+
1r5R/3qRpRn/3QrbBp/1K1nQqPP/1R2rN2/6bQ/r2k1B1Q/7N w - - 0 1 illegal: No possible last move
2Q5/1B1npN1b/B1BR4/2Qq4/rb3qrq/1P1pBQ1q/1RQ2P1k/1N2K1n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 Kf7 c4 a5 f6 Ke6 b6 h5 b7 d5 g6 h4 b3 a4 g5 Kf5 f7 a3 c5 h3 c6 a2 g7 h2 c7 d3 g6 d2+ Ke2 Kg4 Qe1 d1Q+ Ke3 Ra4 Qa5 Nc6 b8Q Qd4+ Ke2 Ne5 Ke1 Nf6 g8B Rh4 g7 Bf5 c8Q Nfd7 Ba6 Bh7 Qac5 Qf4 Nf3 Kh3 Qbc7 d4 Be3 d3 Ng5+ Kg2 Rf1 h1Q Qc2 Qhh2 Q7c5 Rg4 Rh1 Qhg3 Rh6 Qh4 Rd6 Kh2 Bb7 Nc6 Ba6 Nd4 Bb7 Ne2 Ba6 Be4 Bh7 Ng1 g8B Bh6 f8Q Bg7 Bd5 Bb2 Nf7 Ba3 Bdb7 Qh3 Bf5 Qh4 Be6 Bh7 Bed5 Qh3 Bdc6 Qa5+ Q5c3 Qd5 Qc5 Qh4 Nc3 Qh3 Rb1 Qh4 Rb2 a1Q+ Nb1 Qh3 Ra2 Qaf6 Rb2 Qfh4 Qh6 Rg2 Qh5 Rg8 Qhd1 Rg4 Qf3 Bb4+
1N2N1nq/QQPBb3/1B1r1Nrq/Kp2p3/R1N2B2/4n2b/b2bRP2/3B1k2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 c4 Kf6 h4 Ke5 a4 Ke4 a5 b5 c6 g5 c5 d5 h6 b3 Kc3 e6 Kb4 d4 a6 b2 a7 d3 h5 d2 h7 g4 c7 g3 f6 g2 h6 Bd7 c8B Kf4 f7 Bd6 f8N Qe8 Ka5 Be5 c6 Bd6 c7 Qg6 Qa4+ Qe4 Nf3 g1B Na3 b1B Be2 Ba2 Nc4 Qe5 Nd4 Na6 Bd1 Bh2 Nc6 Be7 Nb8 Nb4 Re1 Nd5 Re2 Kf3 Qa3+ Kg2 Qc5 Bb1 Ra4 Ne3 Qd5+ Kf1 Qb7 Be8 Nfd7 Ba2 Nf6 Bf4 Bd7 Bh5 Na6 Rd8 a8Q Bg4 Nb8 Bh3 Qaa7 Qd4 Bb2 Qe5 Bd4 Bg5 Bb6 Qb2 Bb3 d1Q Bc2 Qdd4 Bd1 Qbd2+ Ka6 Qh4 Ne4 Ng4 Be8 Qe3 Ka5 N8f6 Bc6 Rhg8 h8B Rd7 h7 Rd6 Bd7 Rg6 Bg7 e5 Bh6 Ng8 h8N Rd5 Nf7 Bf4 Bf8 Qh8 Nfd6 Rd3 Ne8 Rdd6 N4f6 Bh6 Bc5 Qg5 Be3 Qh4 Bc5 Bc1 Bb6 Ne3 Bh6 Qh5 Bg5 Q5h6 Bf4 Bd2+
1B6/Rp2KQ1p/q3qQPq/bR2BPr1/6NN/1N6/nqB1r2n/B1Nb2k1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 c5 f4 b3 a4 b2 d4 c4 g4 c3 d6 c2 Kd5 e4 f6 Kg6 f5+ Kf7 g6+ Ke8 g5 Kd7 a5 e3 g7 e2 a6 e1Q a7 Qb4 f7 Qa3 Nd2 b1Q Ne2 Na6 Bb2 c1Q Nb3 Qe3 Nec1 Qc7 Bd3 Qg3 Qh5 Qa4 Bc2 Rb8 a8Q Nh6 g8N Ng4 Nh6 Nh2 Ng4 Qaa2 Qg6 Rg8 Qf6 Qg2+ Ke5 Kc6 d5+ Kb5 Rd1 Qc6 d7 Kc4 d8B Qb5 Bc7 Bb4 f8N Ba5 Kd6 Be6 Be5 Re8 Ng6 Qbb2 Nh4 Qh3 Bb8 Nb4 Qa6 Qe3 Qf7 Bd7 Qb6 Qa6 Rd2 Ba4 Rf2 Rc8 Ke7 Rc5 d6+ Rd5 Ke6 Rd2 d7 Re2 d8B Qh3 Bf6 Rg6 Nf3 Qh6 Nh4 Rg7 Qh5 Rg6 Ke7 Rg8 Rf3 Kd5 Rd3+ Ke4 Qf7 Rg6 Bh8 Rg7 Qf6 Rg8 Ng2 Rg7 Rd7+ Kf3 Rd5 Rg8 Rb5 Rg6 N4e3 Kf2 Nh4 Kg1 Ng4 Rg8 Nc5 Qd5 N5b3 Na2 Bg7 Rc8 Bh8 Rc3 g6 Rg3 Bg7 Qde6+ Kf8 Qa3+ Nc5 Qd5 Qd8 Nf1 Bb1 Bb4 Nh2 Qa7 Bf4 Bd1 Bc2 Rg5 Ng4 Nh2 Qd6 Bd2 N5b3 Nb4 Qe5 Qad4 Ke7 Qa8 Ra4 Na2 Qee6 Qa5 Bh8 Qab6 Ra7 Qa6 Bg7 Qa1 Bc3 Qb1 Ba1 Ba5 Bfe5 Qb2 Qef6 Qde6+
2RR4/PRb1B1Nq/5pK1/b5p1/1PnQBkN1/Q3b1rr/b1q3QQ/n3R3 w - - 0 1 illegal: No proof kernel
2B1R2q/r3QP1Q/qr1pbKrn/1N2p2N/1B1P3k/q1N5/n3nN2/1R3QQ1 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Kf3 Kf6 Kg4 a5 f4 c5 d4 e5 b7 d6 b6 h6 b5 h3 Ba3 h2 Bb4 a4 Nh3 a3 Nc3 c4 Nf2 a2 Rb1 Nc6 b8N a1Q b7 Qc7 b6 Qb2 Na6 Qh7 b8N Na7 b7 Bd7 Nc7 Qc1 N7b5 Be6 g3 Qd7 Bh3 Qa3 Qf1 h5+ Kh4 Nh6 g4 Qc6 g5+ Kf7 f6 Kg6 f7 Rh7 f8Q Qca6 Bg4 Nc6 Qe7 Rg7 Nd7 Ra7 Rg1 h1N b8Q Ng3 Nf6 Ne2 Qbf8 Qc8 Qh8 Qca6 Kh3 h4 Nh5 Bg8 Bc8 Be6+ Kh2 Kf5 g6 h3 Qh7 Qb6 Kh1 h2 Kg2 Qba6 Kf3 h1Q+ Rg2 Na5 Ke3 Nb3 Rh2 Nbc1 Rh4 Na2 Rh3 Qg1 Kf3 Rf7 g7+ Qg6 g8Q Rg7 Qhh8 Qf7 Rh4 Kg6 Ke4 Qf6 f5+ Kg5 Qgh7 Qc1 Rh2 Qca3 Rg2+ Kh4 Q8g8 Rg6 Rg5 Qh8 f6 Rg7 f7 Bg4 Na4 c3 Kd5 c2 Nac3 c1R Ke4 Bh3 Kd5 Bg2+ Ke6 Bh3+ Kf6 Bf5 Qg6 Rc2 Q8h7 Rb2 Rg1 Rb3 Rh1+ Bh3 Qgg1 Rb2 Rh2 Rb3 Rg2 Be6 Ba5 Qe8 Nc7 Rb6 Bb4 Rg3 N7b5 Rg8 Rg5 Qd8 Rf5 Rg2 Rg5 Qf8 Rg8 Rg7 Rh8 Qg8 Qf5 Qh7 Re8 Qh8 Qh7 Rg6+
3qQq2/k5PR/1NbNN3/r2p1qNB/1BQ2q1b/2R1Rp2/R4P1q/Kn3n2 w - - 0 1 legal: proof: e4 g5 h4 d5 hxg5 b5 a4 a5 axb5 Ra6 e5 c5 d4 Rd6 exd6 cxd4 Kd2 Kd7 b4 e5 c4 f5 Kc2 h5 Kb2 a4 g4 d3 c5 d2 b6 Kc6 d7 Kb7 b5 h4 g6 e4 g5 h3 g7 h2 g6 f4 Qe2 d1Q Nc3 e3 Bd2 Ne7 g8R Nf5 g7 Be7 Ne4 Na6 Ra2 Nb4 Nf3 Qc2+ Ka1 a3 Re8 Bh4 Qc4 e2 Nfg5 Ne3 c6+ Kb8 b7 f3 c7+ Ka7 b8R Bb7 Bh3 Bc6 Nd6 Nf1 Re3 Qf5 Bg4 Qff8 Rc8 e1Q+ Qc1 Qd1 Bh5 Qa4 Qc4 Qc2 Bc3 Qcf5 Be1 Qf4 Bd2 Q8f5 Bc3 Qdf8 d8N Rh6 Nde6 Rf6 Rae2 Na2 Bb4 Nc3 Ra2 Rf7 Rd8 Nb1 c8N+ Kb8 b6 Ra7 b7 Ra5 Nb6+ Ka7 Rc8 Qd8 Rg1 h1Q Rg3 Qh2 Rh3 Bb5 Qc1 Qdf8 Rcc3 Bc6 b8Q+ Ka6 Qe8 Ka7 Rae2 a2 Qc2 Q4e5 Qb3 Qef4 Qc4 Ra4 Bg4 Qc2 Na8 Qcf5 Kb2 Bg3 Rh7 Bh4 Bh5 Ra6 Rd2 a1Q+ Kc1 Qa5 Kb2 Na3 Ka1 Qd8 Nb6 Ra5 Ra2 Nb1
1RrN2R1/3Qp1n1/B2bqB2/1K2p3/r1nqP3/1PNQ4/BR3Bn1/kn2R2n w - - 0 1 illegal: No proof kernel
rN1QR2N/N2P2B1/4N3/1Rp1q1K1/3q2nR/2kp1rr1/2PbB1Rr/r2n1Q2 w - - 0 1 illegal: No possible last move
3RBN1Q/1NB1p2R/1R5p/K1b2BQP/n2R1q2/2r2b2/1P1nkn1b/4nqB1 w - - 0 1 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 cxd5 Ra7 f4 gxf4 d4 Bh6 d6 Kf8 e5 Kg7 d5 Ra6 d7 Rd6 exd6 Kf6 Ne2 Bg7 Ng1 Bf8 Kd2 Ke5 Kc3 Ke4 g4 f5 h4 c5 b6 f3 b7 c4 g5 a4 Kb4 c3 g6 c2 g7 a3 Nh3 f4 Nd2+ Ke3 Bd3 a2 Ng5 f2 Bf5 f1Q Qg4 f3 Ne6 f2 Qg5+ Ke2 Ne4 Nf6 g8B Bh6 Bf7 Qc7 d8R Nbd7 b8B Ng4 Be3 c1B N4c5 Nb6 d7 Na4 d6 Bb7 Nf8 Bf3 Nb7 Qc4+ Ka5 Qf4 Bea7 Be3 Bc7 Bc5 Be8 Bg7 Rd1 a1N Rb8 Be5 d8R Nc2 d7 Ne1 Rd4 Rg8 h5 h6 Rg1 Rg6 Rg2 Rc6 Rg3 Bh1 Rb3 Bd5 Rb6 Bf3 Rd1 Rf6 Rdc8 Qg2 Rc6 f1N Bf7 Rd6 Ne6 Qfg3 d8Q Ba3 Bg1 Qh4 Rb6 Rc6 Rd4 Nf2 Qf8 Bf4 Qfg7 Rc2 Rh8 Rc3 Nf8 Bh2 Rbd8 Qf4 Rh7 Nd2 Qh8 Qf1 Be8 Bc5
1Q4N1/3n3Q/Rr2k1p1/bn1N1NP1/1q3qb1/B1qqp1RP/N1Q4Q/1B1b3K w - - 0 1 illegal: No proof kernel
3Q1B2/N3p2B/2R1KN1b/b3RPNQ/q3n1Q1/1p3Nr1/nP2k2q/Q2b1nn1 w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 cxd5 g5 h4 gxh4 Ra3 f5 exf5 b4 Ra1 Ra6 Qb3 Rb6 Qd1 Rb5 axb5 Qd7 Ra3 Qd6 Ra1 Qd8 f6 Kf7 Ke2 Kg6 Kf3 Kf5 d4 c5 g4+ Kg6 Ke4 h5 Ke5 a4 f4 b3 g5 a3 f7 h3 d6 h4 b6 c4 d7 c3 b7 c2 d5 a2 d6 h2 Na3 h3 Nb5 Nf6 Na7 Qc7 d8N Rg8 Ne6 Na6 b8N Nb4 Nd7 Qb8 Qe1 Kh5 g6 Kg4 g7 Ba6 f5 Be2 Bh6 c1B Qd1 Bf3 Bc4 Bd2 Rc1 a1Q Bd5 Qa6 Rc6 Qa4 Qa1 Na2 Bc4 Ba5 Bd5 Rh8 g8Q+ Bg7 f8Q Bd1 Qgf7 Rg8 Qh5+ Kg3 Qff7 Kf2 Qfg6 Bf8 Nf3 Rg7 Rg1 h1N Re1 Ng3 Qgg5 Nf1 Qf4 Rg4 Neg5 Bg7 Bg8 h2 Ke6 h1N Qc4 Nhg3 Bh7 Ne2 Qb4 Rg2 Qbg4 Ng1 Re4 Qbb5 Re5 Ne4 Nf6 Qe2 d7 Rg3 d8Q Ke3 Rb5 Qh2 Rbc5 Ke2 Re5 Bh8 Bf8 Bg7 Qf4 Bh6 Qfh4 Nc3 Q4g4 Na2
4R1r1/4n3/4q1nQ/2k1NNB1/B1p1B3/pP1qRKNn/P1qnr2N/4BQb1 w - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 g5 c4 bxc4 h3 f5 Na3 Bb7 Nb1 Bf3 gxf5 g4 Qc2 g3 Qd1 Bg4 hxg4 Ke7 Qd6+ Kf7 Qd1 Ke8 e4 Ke7 Ke2 c5 f4 h5 f6+ Ke6 f5+ Kf7 e6+ Ke8 e7 a5 g5 d5 g6 Kd7 e8Q+ Kd6 g7 g2 f7 h4 b3 d4 e5+ Kd5 e6 h3 f6 c3 e7 a4 Bg5 h2 Nf3 a3 Nbd2 c2 Ne4 c1Q Ng3 g1N+ Kf2 d3 Bg2 c4 Qf1 Qc3 Re1 d2 Re3 Qc2 Qa4 Rh4 e8B Re4 Qa6 Ne7 g8N Ng6 Ne7+ Kc5 Ba4 Nc6 Nef5 Nce7 Qe6 Bg7 f8B Qdd3 f7 Bd4 Bg7 Rg8 f8N Re5 B7f6 Re4 Bh4 Re5 Bfg5 Re4 Qf6 Re5 Qg7 Re4 Qh6 d1N+ Ke1 Nh3 Nd7+ Kb4 Nde5 Nc3 Rg1 h1Q Nh2 Nb1 Bf3 Ba7 Rg2 Kc5 Rge2 Rd4 Ba8 Qc6 Bb7 Qe6 Be4 Nhf4 Kf2 Nh3+ Kf3 Bb6 Bb7 Rg4 Be4 Ba7 Nh1 Rg2 Be1 Bb6 Nhg3 Ba7 Rd2 Re2 Rd1 Qdc3 Rd8 Q3d3 Ra8 Kb6 Re8 Bb8 Ba8 Bd6 Be4 Bc5 Kg4 Bd4 Rf3 Bg1 Re3 Kc5 Kf3 Nd2+
5B1N/2rqnpR1/NnB2rb1/1n2RP2/r1k3PB/1q5n/Q1p4R/2QKR1B1 w - - 0 1 illegal: No possible last move, all moves rejected
1rk1n2R/B1N2p1R/5QP1/rBnQ3q/1Bpr1P1r/2n2NR1/1bR3BK/1q6 w - - 0 1 illegal: No possible last move, all moves rejected
2q1N1Q1/pQb1Pp2/n4RBn/N3Q2R/1R1b1P1B/2R5/r2nq2k/b1K1Qb2 w - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Nf6 g4 hxg4 a4 Bc5 b6 Qe7 b5 Ng8 a5 Qd8 a6 Bf8 Nf3 Nc6 Ng1 Rb8 Qd3 Rb7 axb7 Nb8 Qb3 Qh4 Qd1 Qd8 Kd2 Ke7 h4 Ke6 e4 d5 h5 c5 h6 g5 h7 g3 Nf3 g4 Na3 c4 Qe1 d4 Rh5 g2 Ng5+ Ke7 e6 Kf6 e5+ Kf5 e7 Kf4 e8R g1Q e6 g3 e7 g2 Ne4 d3 Nd6 Na6 b8Q Nh6 b7 Bg7 b6 Qh2 f3 Rg8 h8Q g1B+ Kd1+ d2 Bd3 c3 Bg6 Be3 Nac4 Bh3 Na5 Bf1 Ra2 Qc7 Rc8 Bed4 Ne8 Qe2+ Kc2 Bge5 Kb1 Rg7 Qg8 Qc6 Ra4 Bc7 Rb4 Qc5 Bb2 d1N Kc1 c2 Qa8 Nc3 b8Q Qcc4 b7 Nb1 Rb6 Qc5 Rf6+ Qf5 Bc3 Nd2 Bb4 Rh7 Bc5 Ba1 Bf2 Rg7 Bh4 Bd4 Bh7 Rg2 Bg6 Ba1 Rd8 Rh2 Rd3 Bd4 Rc3 Rf2 Bg5+ Kg3 Bh4+ Kh2 f4 Qd7 Rf3 Qc8 Rc3 Bd8 Qd6 Bc7 b8R Rg2 Qe5 Rf2 Kb2 c1B+ Kc2 Ba3 Rb4 Bb2 Qb7 Ba1 Kc1 Rf3 Rc5 Ra3 Rc3 Ra2
b3k3/Q4qpP/7Q/1qN1b2n/2Rp2Q1/rBN2q1Q/KN1b2Pn/2B1R1bN w - - 0 1 illegal: No possible last move, all moves rejected
rN1r1BB1/2qpb3/p1Pr1nr1/Q6N/1R1N4/2KQn1B1/1n1P3R/1q1k1B1N w - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 bxc5 gxh4 a4 b4 Ba3 Ba6 Bc1 Bb5 axb5 Qc8 Rh2 Qc7 Rh1 Qd8 g4 Kf7 c4 Kf6 f4 e5 b6 h5 c6 a6 c5 h3 c7 h4 c8Q h2 b7 b3 g5+ Ke7 f6+ Ke6 f7 Kf5 g6 Ke4 g7 h3 f5 b2 f6 Nh6 g8B Nc6 b8N Qe8 Ra4+ Nd4 c6 Be7 f8B Qd8 f7 Ng4 Qb3 Nf6 Rb4 Qc7 Na3 b1Q Ne2 Rh6 Kd1 Rg6 Qd5+ Kd3 Nc2 e4 Qd8 e3 Qf3 Nf5 Ncd4 Rg5 Qd5 Rg6 Ng3+ e2+ Ke1 Qb7 Q8a5 Qc7 Kf2 Ne3 Ba3 Bd8 Bd6 Be7 f8N Qa2 Bg2 e1N Nfe6 Qc2 Ng7 Qb1 Nb3+ Kc2 Ke2 Nd3 Bf1 Nb2 N7h5 Na4 Qf3 Nb2 Nd4+ Kc1 Rg1 h1R Rg2 Rg1 Nh1 h2 Bg3 Rh6 Qff5 Rg6 Qd3 Rh6 Nf2 h1R Rh2 Rg2 Be5 Rgg6 Bg3 Rg1 Nh1 Rh8 Bf4 R1g5 Bg3 Rd5 Rb6 Bd8 Bf8 Rd6 Rb4 Be7 Kf3 Nfg4 Ke4 Kd1 Nf3 Rde6+ Kd4 Rd6+ Kc3 Nf6 Nd4 Rh7 Bh6 Rf7 Bg7 Rf8 Bh6 Re8 Bf8 Rd8
1n1QKrR1/nNR4r/N3Br2/1P2N2p/1RQ1R1r1/p1qN3r/3r3P/k4bB1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kb3 Kd7 Kb4 Kd6 d4 h5 e4 g5 f5 g4 e5+ Kd7 Kc5 a5 b4 g3 b6 g2 e6+ Ke7 d6+ Kf6 d7 c6 Kd6 a4 b5 c5 b7 a3 d5 c4 e7 c3 e8R c2 Nd2 Ra5 Nb3 Ra7 Qd4+ Kf7 f6 Rh7 Bc4 f1R Re4 f2 Nc5 Ne7 Nf3 g1R Rb1 Qa5 d8Q Qc3 Be3 c1R Rb4 Rc2 Nd3 Bh3 Bb3 Re1 Qc4 f1R Bf2 Rgg7 Bg1 Re3 Ba2 Kg6 f7 Kf5 Nfe5 Rg4 f8R+ Rf7 Rh8 Rd2 Rg8 Nec6 Bb3 Rf6+ Kc7 Bg2 d6 Rh3 d7 Rff3 Kc8 Bf1 Kc7 Ra5 Ba2 Na7 Bb3 Rf7 Kd6 Rf6+ Ke7 Raa6 Ke8 Rh6 Qe7 Raf6 d8N Rh7 Ba2 Nd7 b8N Rff7 Na6 Nb8 Re1 Rff2 Nb7 Rff3 Bd4 Rf6 Rc1 Ke4 Qd8 Rff7 Bb3 R3f6 Bg1+ Qd4 Nf2+ Ke3 Rc2 Qc3 Nfd3+ Ke2 Qe4+ Kd1 Be6 Qd4 Rcc4 Qc3 Rc7 Kc2 Qe2 Rhf3 Re4 Kb1 Rb4+ Ka1 Qe4 Qc2 Qc4 Qc3 Bb6 Re3 Rg1 Rh3 Rg3 Rb2 Bg1 Ra2 Re3 Rd2 Re4 Rf8+
b2NNk2/N7/KQ1nb3/3rRnBp/n1p2Q1P/1qP1Nb1R/4b3/1nRB2R1 w - - 1 2 legal: proof: e4 b5 d4 e5 f4 exd4 a4 a5 axb5 Ra7 e5 Rb7 e6 Ba3 Ke2 Bd6 Ke1 Bf8 g3 Rb6 Be3 Rd6 Bd2 Rd5 Bc1 Re5+ fxe5 Bb7 Bd2 Ba6 Bc1 Bc8 Be2 f5 Bf1 f4 Nh3 f3 Ng1 Be7 Bh3 Bg5 Bf1 Bf4 gxf4 Qe7 Qe2 Qf6 Qd1 Qd8 Kd2 h5 Kd3 d5 b4 g5 h4 c5 c3 f2 f5 a4 b6 a3 f6 a2 b5 g4 f7+ Kf8 b7 g3 b6 g2 Be2 f1B Nf3 g1N Nh2 Ne7 Qb3 Nd7 b8Q Nf5 b7 Nh3 Rg1 Bg2 Na3 Ng5 Bd1 Ne4 Bg5 Ned6 Nb5 Qb6 Rc1 a1N Nf1 Nc2 Ne3 Na3 Na7 Nb1 Qc7 Qb4 b8N Nb6 Nbc6 Na4 Nd8 Rh6 Qb2 Qb3 Qf2 Bf3 Qb6 Bb7 Qf1 Ba8 e7+ Kg7 e8N+ Kf8 e6 Bg4 Qf3 c4+ Ke2 Bh3 Qf4 d3+ Kf2 d2 Kf3 Rf6 Ke2 Ke7 f8R d4 Rg8 d3+ Kf2 Bhg2 Rh1 Bgc6 Rh3 Bd7 Rg6 Kf8 Rg7 Nb7 Kf3 Rf7 Ke4 Re7 Kd5 Nd6+ Qb7 Bc8 Kc6 Rd7 Rg6 Ne4 Rg7 Rd5 Kc7 Nd6 Qb4 Nb2 Kb6 Bd7 Ka6 Na4 Bg4 d1B Qb6 Be2 Rg6 Bf1 Bd1 d2 Rf6+ Kg8 e7 Be2 Re6 Bf3 Re5 Be6 Nc7 Be2 e8R+ Kg7 Re7+ Kg8 Ne8 Kf8 Rg7 Bf3 Bf6 Be2 Rg1 Bf3 Bc2 d1B Bg5 Bde2 Bd1 Bf1 Rhh1 Bd3 Rh3 Bde2
5B1n/QNR3K1/bQr2NpP/1n1Qr1P1/1n1bn1R1/2r2N1N/1p3Q2/1k1Br3 w - - 0 1 illegal: No proof kernel
B3Qr2/n1B2n1Q/N2B1Npb/Pb4R1/2k1p1N1/K4Rrr/1n2PpB1/4q1N1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 b4 axb4 cxd5 e4 Kf2 Qf6 Ke1 Qe5 fxe5 Be7 Nh3 Bc5 Ng1 Bf8 d4 Kd7 Kd2 b5 Kc2 f5 Kb3 c5 a4 g6 h4 f4 a5 f3 h6 f2 h7 Nc6 e6+ Kd6 e7 Rb8 e8B Rb6 h5 Rb7 h6 Nf6 Bf4+ Ne5 Ra3 Ng4 Bg2 Be7 Nc3 Be6 Rh5 Bg5 Bc6 Rf7 Ba8 c4+ Kb2 Ne3 Qa4 b3 Bh2 b4 Qe8 Rhf8 h8N Bd7 h7 Bh6 Rg5 Bb5 Bg3 Rf3 Nf7+ Kc7 Bf4 Rh3 h8Q Rg3 Qh7 Nd1+ Kb1 b2 Ka2 b1R Rb3 Bg7 Nh6 Nb2 Ng4 Rd1 Ra3 Rdd3 Rb3 Rh3 Bh2 Rdg3 Ra3 Nc6 Rb3 Nd8 d6+ Kb8 d7 Ka7 d5 Ka6 d6 Bh6 Nd5 c3 Ra3 c2 Rf3 c1Q Ndf6 b3+ Ka3 Nf7 d8B Qe1 d7 Bc4 Nd5 Kb5 Bc7 Kc5 d8N Bb5 Nc6 Kc4 Be5 Nd1 Ncb4 b2 Bc7 b1N+ Ka2 Nbc3+ Ka3 Nb2 Ndf6 Bc6 Na6 Nb5+ Ka2 Na7 Ka3 Bb5 Bd6 Rh5 Bc7 Rgh3 Bhf4 Rg3 Bfd6 Rhh3
7k/Bb1QN1Rr/P2R1np1/q3P2B/2r4N/bnB1bp2/2QR1pR1/n1K4B w - - 0 1 illegal: No possible last move
b2QB2r/B3BN1B/p3P2p/1N1rPR2/Q2n2p1/K5N1/nRrN3b/2q1k2b w - - 0 1 illegal: No proof kernel
KB4qk/nN4bP/p2p1N2/2NQ1RQP/4r1pR/rbR2nN1/1b1R2B1/1n6 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h6 Kf7 Kd2 e5 Kd3 g5 Ke4 d3 Kd5 g4 f4 e4 c4 d2 b4 a6 h4 e3 c5 e2 c6 e1B h5 Kf6 c7 Bg7 b6 Bf2 b7 Nc6 b8Q Nd4 b5 Bh4 h7 Be1 b6 Nh6 b7 Ne6 Nc3 Nd4 Bg2 Kf7 f6 Qf8 f5 Ra7 Rh4 Qe7 Ra2 Re8 Nb5 Bf8 Ne2 Nc2 Ng3 Na1 Qb3 d1N Bf4 Bf2 Rd2 Qd8 Qd3 Ba3 Nd6+ Kf8 f7 Kg7 f8R Re3 Qb3 Ng8 f6+ Kh8 f7 Nc2 Qb5 Bc1 Qa8 Bb2 b8N Nd4 Qac6 Bb7 c8R Ra3 Kc5 Qe8 Kb6 Nc3 Qg5 Nb1 Qcb5 Ra8 Rc3 Bd5 Nb7 Bb3 Qbd5 Qd8+ Bc7 d6 Nd7 Nf3+ Ndc5 Qb8 Rh2 Qe8 Rh4 Rd8 Ka7 Bd4 Bb8 Bg7 Ka8 Rc8 Nce4 Rc4 Nec5 Qc8 Re8 Rb4 f8N Re4 Re5 Ne7 Nfd7 Nc6 Nf6 Qg8 Rf5 Na7
Q4N1r/5p2/2BR1Pn1/3b3R/pR2rNnN/qb1P1Qb1/np2KRN1/1k3B2 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 h4 Bc8 hxg5 c5 b4 Kd7 b6 Nc6 b5 Nb8 Ba3 Ke8 Bb4 cxb4 g4 Kd7 c4 Kd6 f4 Kc5 d6 Kd4 g6 h5 g7 e5 f5 a5 d7 h4 c5 b3 c6 b2 c7 a4 d3 h3 g5 h2 f6 e4 g6 e3 b7 e2 b6 Ra7 Nc3 Rh6 Nd5 Qe8 d8N Na6 b8N Rh3 b7 Rh6 Nf3+ Kc5 Ne3 Kb4 Ne6 Kc3 Nf4 Nb4 Nh4 Na2 Nd7 Bd6 b8R Ne7 g8Q Qf8 g7 Rh8 Rb4 Ng6 Neg2 Ba6 c8R+ Bc4 Rd8 Bb3 Rb1 Qe7 Nf8 Be5 Kf2 e1N Ke2 Nc2 Rd6 Ne3 Ra1 Ng4 Rb1 Rh5 Qh8 Ra8 g8B Re8 Bh7 Rh6 Ke1 Rh5 Qf3 Kc2 Ke2 Rh6 Rd1 Rh5 Rd2+ Kb1 Rg1 h1B Qg8 Nh8 Be4 Ng6 Bc6 Rh7 Rc2 Rh8 Rc5 Bd4+ Re5 Be3 Rh5 Bf2+ Ne3 Bg3 Rg2 Qa7 Rf2 Qc5 Nd7 Re4 Qa8 Bg2 Nf8 Bh1 Rb6 Qa3 Rb4 Rc4 Qd5 Be4 Neg2 Rd4 Qf5 Bed5 Qe4 Rc4 Qf3 Re4+
Qrk2B1N/n3P3/n2K2b1/B1N1ppbq/1QR2PQ1/1B6/1b1n1r1p/Q1R3B1 w - - 0 1 illegal: No proof kernel
1b3B1k/p1p2nRN/1np1r1R1/1n2P1K1/1B1RqP2/1B3N2/Q1bB3r/2Q2rR1 w - - 0 1 illegal: Other
3r2bQ/1n1q2B1/1RN3nQ/1nB1p1NB/k1K1PqpN/7r/3B1pP1/3bN2R w - - 0 1 legal: proof: h4 c5 d4 cxd4 f4 g5 a4 b5 axb5 g4 f5 e5 Rh3 Qb6 Rh1 Qe6 fxe6 Bb4+ Nd2 Be7 Nb1 Bg5 hxg5 Kd8 Ra6 Ke7 Ra1 Ke8 Kd2 f5 Kd3 h5 b4 d5 e4 a5 c4 f4 e7 Kd7 e8N h4 c5 f3 g6 a4 b6 Kc6 b7 Kb5 c6 f2 g7 a3 c7 a2 Nf3 h3 Nd6+ Kb6 b5 Ka5 b6 h2 Na3 Rh3 Nc2 Nd7 b8B Ra7 b7 Ra8 Nf7 Ne7 g8Q Ka4 Bd2 Ng6 Rb1 a1Q Rb6 Qc1 Ba7 Rb8 Qh8 Nc5+ Ke2 Ra8 b8B Bf5 c8N Nb7 Bd6 d3+ Ke3 Rb8 Ne7 Rd8 Qe1 Qd1 Nc6 Qc1 Bf8 Qd1 Rg1 h1Q Ng5 Qh2 Bg7 Qg3 Rh1 Qh2 Bc3 d2 Kd3 d4 Qe3 Qf4 Kc4 d3 Be2 Nh4 Nce1 Bh7 Bb4 Ng6 Ba5 Qa1 Nh4 d1B Bf1 d2 Bd3 Qa3 Bb1 Qe7 Ba2 Qd7 Bb4 Bc2 Bc3 d1N Bd2 Qh2 Qf4 Nc3 Qff8 Bd1 Qf6 Ne7 Qh6 Qf4 Rb1 Rf3 Bc5 Rh3 Rb6 Nb5 Rg1 Nd4 Rh1 Bf3 Kd3 Nb5+ Bd5 Bd1+ Kc4 Nc8 Bf7 Ne7 Bh5 Ng6 Ba5 Qe8 Bab4 Qd7 Bd2 Bg8+
B1q5/1N1qQ2N/B1k1rP2/p3n1N1/6Rp/2pnP2b/B2Q3K/b1rR1bBN w - - 0 1 illegal: No proof kernel
5Q1B/4Q3/1b2p1qN/r1R1P1P1/1R2bRrB/R1p1k1qQ/2bpN1K1/2nn1Q2 w - - 0 1 illegal: No possible last move
1rNQ4/5k2/B1PRNpp1/KPBQnbb1/B1Nq1nR1/3nB3/pr5N/q7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 d5 b4 a5 c4 d3 Kc3 g6 h4 f6 e4 d2 e6 a4 h6 a3 e5 a2 b6 Qe7 h5 Qa7 e7 Qa6 c5 Qb5 b7 Ra6 h7 Qd7 h6 Qc6 Rh4 Qc7 Na3 Bd7 Rg4 Bf5 Nf3 Bg7 Nh2 Ra4 Ba6 Qd8 Nc4 Kf7 e8B+ Kf8 e6 Nd7 b8B Qc7 Ba7 Ne5 Bb6 Ra5 Ba4 Qa7 e7+ Kf7 e8N Qb7 c6 Qa7 Bc5 Rb5 Nc7 Ne7 Ne6 Rhb8 h8Q d4+ Kb3 d3 h7 R5b7 Qd8 Bh6 Qd5 Bg5 h8N+ Ke8 Nf7 Rb6 Q1f3 d1N B1e3 Nb2 Rd1 d2 Qd3 Nd5 Nfd6+ Ke7 Nc8+ Kf7 Ka3 Nf4 Qd8 R6b7 Qfd5 Nbd3 Kb3 Re7 b5 Re8 Rh1 d1Q+ Kc3 Qb1 Rd1 Qa1+ Kb3 Nf2 Kb4 N2d3+ Ka5 Rh8 Nf3 Rh1 Rd2 Rb1 Nh2 Rb2 Qe4 Nb4 Rd6 Nbd3 Qg2 Qd7 Qd5 Qa7 Ba3 Qd4 Bb4 Rb3 Bc5 Rb2
7B/1R1R2RN/nP2K2R/2PnNB1r/r1p4q/p1rQ1b1p/1Nq1N3/Q5bk w - - 0 1 illegal: No proof kernel
4Q1br/1b5B/1p1Q2Kq/1nB3Q1/k2pN1PQ/Bn1P2rp/1R1q3N/3B2rR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Bg7 c5 Be5 Ke2 Nf6 Ke1 Bd6 cxd6 Ng8 Ke2 Kd7 Kd3 Kc6 f4 Kb5 g4 h5 a4+ Ka5 d7 e5 g6 c5 f6 b6 f5 b3 f7 h4 f8Q h3 g7 b2 f6 d4 Ke4 c4 Kf5 e4 f7 e3 d3 e2 Nd2 e1Q Qd6 b1B f8B c3 Ne4 c2 Ba3 c1R Nf3 Na6 Kg6 Qe3 Ra2 Qd2 Be2 Nc7 Rb2 Nf6 g8B Bb7 Nh2 Nb5 Bh7 Ba2 Qe1 Bg8 Qh4 Rg1 Bd1 Rg3 Qg5 Qc8 d8Q Nd7 Qh4 Qb8 Qdg5 Nc5 Be7 Nb3 Bc5 Ka6 a5 Qf8 Ba3 Nc3 Bc5 Kb5 a6 Ka4 a7 Nb5 Ba3 Re8 Bc5 Rc8 Ba3 Rc1 a8Q+ Na7 Qe8+ Nb5 Qdf6 Ra1 Bec5 Rb1 Qd6 Rc1 Bf3 Rcg1 Bd1 Qh6+
QR2q1r1/Q4r1N/1pN1pBB1/KP1pR3/Nn3RP1/1kbq2N1/b1n1n3/R7 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 cxd4 h4 g5 hxg5 Qc7 Nf3 Qb6 Ng1 Qd8 Nc3 a6 Nb5 Bg7 Na7 Bh6 Bxa6 Bg7 Bf1 Bf8 Kd2 Kf7 f4 d5 a4 h5 b4 h4 c4 h3 g4 e6 b5 d3 Kc3 h2 f6 d2 c5 Qd6 Kb4 Ne7 a5 Rg8 a6 Ng6 f5 Ne5 g6+ Ke8 f7+ Ke7 g7 Qc7 f6+ Kd7 Bb2 Nc4 Bd3 Qc6 Qa4 d1Q Bg6 Na3 Ne2 Qd3 Rhe1 h1N Ng3 Nc2+ Ka5 Bd6 f8R Be5 f7 Bc3+ Qb4 Kc7 Re5 Qe8 Nc6 Bd7 a7 Na6 Re2 Rc8 a8Q Rb8 Re5 Rc8 Bc1 Rb8 Bg5 Rd8 Bf6 Rb8 Ne4 Ng3 Qa7 Ne2 Ng3 Bd2 Qc3 Nab4 Qa3 Bc3 Qa2 Rh8 g8R Rh7 Nd8 Rc8 c6 Kd6 c7 Bc6 Qa8 Kc5 Rh8 Rb8 c8N Bd7 Qa4 Kc4 Nc6 Rg7 Rhh1 Rh7 Rhf1 Rg7 Rg8 Rh7 f8N Rf7 Qa7 Ra8 Nh7 Rb8 Rad1 Ra8 Qa1 Kb3 Nb6 Qc8 Rg7 Ncd4 Bf5 Qb1 Rg8 Be8 Qa6 Rf8 Rf4 Bg6 Re1 Rb8 Qa8 Rf7 Rh1 Qc2 Qg1 Qd7 Rc8 Qd1 Rc7 Rg8 Rc8 Qe8 Rb8 Qd2 Be4 Qe3 Na4 Qd2 Bg2 Bb1 Be4 Ndc2 Bg6 Qd3 Qga7 Ba2 Ra1 b6+
BQ1rnq2/2B1Qq2/P2Q3r/n3N3/3pP1N1/1bRQBpb1/k1pb1K2/1R3B2 w - - 0 1 illegal: No proof kernel
1N1N3b/1R3Qpn/5nbR/4R1BP/1P1pp3/2r1Q2N/K2q2RN/1Bkbqr2 w - - 0 1 illegal: Other
RB3bNk/3R1np1/1p1B2Pp/P1NBB3/4q1n1/3Rq2r/Q1bq4/1KR2Qr1 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 f5 exf5 Qd7 c4 Qd6 cxd5 Qxh2 g4 Kf7 f4 e5 d4 c5 a4 c4 g5 c3 f6 h6 f5 b6 d6 e4 g6+ Ke8 d5 e3 f7+ Kd7 f6 e2 a6 c2 Kd2 Ra7 Nf3 Qg3 Nd4 Qg2 Nf5 Qf2 Nc3 Qh4 Ne4 Bb7 Ne7 Kd8 d7 Qh3 Bg2 Qg4 Bb2 e1Q+ Kc1 Qg1 Be5 Ra8 a7 Bc6 Nc5 Qf5 Qf1 Qd4 a5 Qfe4 Ra3 Ba4 Rd3 Nc6 Rg1 Rc8 a8R Qde3+ Kb2 c1Q+ Ka2 Qcd2+ Kb1 Q3f3 Qf2 Qde3 Rc1 Qd1 Qa2 Qdd2 Ba1 Kc7 d8R Ne5 Bb2 Nf3 Rd6 Ng5 Be5 Bd1 Re6+ Kd8 d6 Ba4 d7 Bc2+ Ka1 Qh4 Bd5 Qhe4 Bb8 Nf3 Rd6 Ne5 Na6 Rc3 Nc5 Ra3 Nf5 Be7 f8B Rb3 f7 Nf6 Bb7 Nfg4 Bd5 Bf6 Ne7 Bg5 Ng8 Be7 Rc6 Rc3 Rc7 Rb3 Na6 Ba3 Bb4 Rc3 f8B Nf7 Bfd6 Rb3 Bc3 Bb4 Ne7 Re8 Ng8 Re5 Nc5 Rg5 Bg3 Ra3 Bce5 Rc3 Nf6 Ke7 Ng8+ Kf8 Bgf4 Nf6 Bh2 Rg1 d8Q+ Ne8 Qh4 Nf6 Qh3 Ng4 Rd7 Ba3 Qf1 Rb3 Ne7 Bb4 Bed6 Rc3 Bhe5 Ba3 Nc6+ Kg8 Ne7+ Kh8 Ng8 Q3f4 Rd4 Rh3 Rd3 Qfe3 Nb3 Qf5 Bdc7 Bf8 Nc5 Qef2 Bcd6 Qfe3 Kb2 Qfe4 Ka1 Bb3 Kb1 Bc2+
1Rqb2B1/2r2pRb/1r1B4/1P2NpqB/8/NNn2PQ1/Q2N1Bp1/Kn4bk w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 h5 gxh5 e6 a4 Nc6 axb5 Nb8 Qc2 Bb7 Qh7 Bc8 Qf5 exf5 Kd1 Kd7 Kc2 Kd6 b4 Ke5 Kb2 Ke4 d4 c5 h4 a5 h6 g5 b6 a4 d6 c4 b5 g4 h5 g3 b7 g2 d5 Ra6 h7 Bh6 d7 Qf8 d8B Re6 d6 Bf4 d7 Rd6 h6 Be3 Bh4 Kf4 d8N Be6 Na3 Qe7 Nc6 Nf6 Nf3 Rhd8 h8Q Nbd7 b8Q Ng8 h7 Ne5 Ncd4 Rc8 Nd2 Nh6 N4b3 Bc5 e4 Bd5 Be2 Ng8 Bh5 Rb6 Bg6 Nf6 Qd6 Rc7 Qa8 Qf8 h8N Qc8 Bh7 c3+ Ka2 c2 Bg8 Kg4 Ng6 Nc4 e5 Bf3 e6 Ne4 e7 Be3 Bb2 c1Q e8B Bg5 Bc3 Bd8 Ne5+ Kf4 Qad5 Bh5 Bb4 Bg6 Bc6 Bh7 Rh3 Bf6 Rg3 Bd8 Nc2 Na3 Rg7 Nb1 Na3 Qc4 Kb2 Nec3 Q5e6 Qc5 Bf3 Qe3 Bh5 Qg3 f3 Qg5 Qed5 Ke3 Bf2+ Kf4 Bd4 Kg3 Bf2+ Kh2 Qg6 Kh1 Bd6 Qe3 Qg3 Qh6 Ra2 Qg5 Nac4 a3+ Ka1 Nd1 Rc2 a2 Na3 Ndc3 Rc1+ Nd1 Rc4 Ndc3 Ra4 Qh4 Ra7 Qg5 Rb7 Ne4 Kb2 a1B+ Ka2 Bd4 Rb8 Bc5 Ka1 Nec3 Qc4 Ne2 Qc2 Nec3 Qa2 Bd4 Be1 Bg1 Bf2 Rc4 Nd4 Rcc6 N4b3 Rc7
rRB2R1R/rQ2pr2/1K2n1PN/2NN3k/2qqp3/N2R3P/bnQB1p1b/8 w - - 0 1 illegal: No proof kernel
4Bq2/3pB1N1/2bpp1n1/rQBQ1BRP/2N5/R1N1K3/3PN2k/n1bnqr2 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 h4 Qg4 h3 Qb4 Nf6 Qd6 cxd6 gxh3 Ba6 h4 Ng8 h5 Bc8 Ke2 Kf7 h4 Kf6 f4 g5 c4 a5 b4 a4 c5 g4 c6 g3 c7 g2 b6 a3 b7 a2 b5 Qe8 h6 Ra4 h7 Qg6 h5 Bh6 b6 Qg7 Nc3 Ra7 Ba3 Ra8 Ke3 Qg5 Bd3 Na6 b8N Bg7 b7 Bh6 Nge2 g1N Bc5 Bf8 Nc6 Qg2 b8Q Nb4 Qb5 Bh6 Ne5 Ra5 Nc4 Nh3 Rhg1 Qg7 Rg5 Bb7 c8B Bc6 Bb7 Qf8 Ba6 Bg7 Bc2 Kf7 f6 Ke6 f7 Nf2 Bg6 Kf6 f5 Nd1+ Kd4 Nc2+ Kd3 Qb8 f8N Qe8 Ne6 Qf8 Na3 Ke5 Be8 Bf6 Ng7 e6 Bb7 Ne7 Ba8 Rg8 h8Q Ng6 Bb7 Bh1 Be4 Bg2 Ng3 Kf4 Nc4 Bd4 f6 Be5 Bf5 Bc6 f7 Bd4 Rb1 a1Q Rb3 Qb1 Ra3 Na1+ Ke2 Qc1 Kd3 Kf3 Qh6 Kg2 Nge2+ Kh2 Qh8 Ne3 Qh7 Qe1 Qh6 Nd1 Qh8 Qe7 f8B Qf6 Be7 Qf8 Nd5 Bb2 Ndc3 Bc1 Qh6 Nh8 Qf6 Ng6 Qd4 Qf7 Qe4 Rf8 Qd5 Qg8 Be4 Rf4 Bf5 Rf1 Kd4 Qf8 Ke4 Nf2+ Ke3 Nd1+
4BRb1/rnqpBNpP/4kbn1/2r1n2N/KP4pB/B3R1q1/1Q1Q3Q/5Q2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 Kf7 Kc3 a5 Kb3 e5 c4 e4 h4 e3 f4 e2 b6 e1N c6 Nf6 c5 Nh7 b7 Ng5 h5 Ke7 f6+ Kf7 f5 Ne4 c7 Ng3 c6 Ng2 h6 Bc5 h7 Ne3 Qd2 Ng2 Ne2 Ne1 Ka4 Rg8 b4 Be3 Na3 Bg1 Nb5 Bd4 Ra3 Re8 Re3 Re6 Ba3 Bb2 Nd6+ Kf8 f7 Ke7 f8B+ Kf6 Nf7 Re5 Nf4 Rc5 Bd3 Ne2 Rf1 Nf3 Be4 Ne5 Rf2 Na6 b8Q Bb7 c8Q Ra7 c7 Bd5 Qb5 Bd4 Qcb8 Bc4 c8Q Qc7 Qb2 Ba2 Qd3 Bd5 Qbb5 Nb8 Qdd2 Nbc6 Qcb8 Be6 Qbd3 Bc4 Qdb1 Bc3 Qf1 Bd5 Ng2 Nf4 Bb1 Nfg6 Nf4 Rc4 Bc5 Be6 Bb6 Rc5 Nh5+ Ke7 Bd3 Bc4 f6+ Ke6 Nh8 Bd4 f7 Ba2 f8B Bd5 Bc4 Bc3 Kb3 a4+ Ka2 Qd8 Qa8 Rca5 Ref3 Nd3 Nf4+ Kf6 Be7+ Ke5 Nh5 Bg8 Bf7 Rd5 Be8 Na5 Qb8+ Ke6 Qh2 Qc7 Rf8 Bd4 R2f3 Bf6 Nf7 Nde5 Bf2 Rc5 Bh4 Ra6 Qba1 Ra7 Bb2 a3 Rd3 Nac6 Kb3 Na5+ Ka4 a2 Qdf4 Qd6 Ba3 Qc7 Qab1 a1Q Qbb2 Qe1 Qfd2 Qg3 Re3 Nb7+
bq1br1kN/P2QQn2/1b2p1n1/N5P1/2Bp2N1/1RBK1Q2/1pr4R/1NQ1q3 w - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 c5 hxg5 Nc6 dxc5 Nb8 Kd2 Kf7 f4 h5 a4 b5 g4 d5 c4 e3+ Kd3 d4 f5 h4 f6 e6 a6 h3 a5 h2 g6+ Ke8 a7 b4 g5 b3 f7+ Ke7 c6 b2 c7 e2 c5 e1B c6 Bd2 a6 Ba5 g7 Qd6 Ra3 Rh6 Bd2 Qf4 Nf3 Rh3 Qc1 Bb6 Bc3 Qf6 Rb3 Nh6 g8N+ Kd6 Ne7 Rh5 Ng6 Qd8 Nfe5 Bb7 c8Q Nd7 c7 Be7 f8Q Nf7 Ng4 Qe8 Qg7 Bd8 Nh8 Ke7 Qf6+ Kf8 Qe7+ Kg7 Be2 Rb8 a8Q Nf8 a7 Kg8 Qcd7 Ng6 c8N Rh4 Nd6 Rc8 Be1 Rc2 Nc4 Bg2 Qf3 Qf8 Qg3 Ba8 Na5 Rh5 Qf3 Rh3 Rf1 h1Q Rf2 Rh6 Bc3 Qe1 Rh2 Rh3 Qf6 Qd6 Qfe7 Qb8 Bf1 Rh4 Ne5 Rf4 Ng4 Rf5 Be2 Rc5 Bf1 Rc8 Be2 Bdc7 Bf1 Rf2 Be2 Re8 Kc2 Rf1 Bb5 Bd8 Bc4 Rf2+ Kd3 Rc2
1K1br2Q/p1Q1n3/1rN3Pn/1pq3BN/B1kN4/q1N1p1R1/5P2/B1BR2qb w - - 0 1 illegal: No proof kernel
1kbBN3/5b1Q/qP1P1pBr/pp1r1n1R/1b1R1B2/1BRbK2R/1N6/1n4Q1 w - - 0 1 illegal: No proof kernel
k2K2r1/2B3PN/1p3n1q/bp1P4/2NpBr2/1Rn3Qr/1B1NrNb1/B1Q1R3 w - - 0 1 illegal: No proof kernel
4RN2/Bk1p2qQ/rp1r1RN1/nP2Q3/5r1R/2p1n1B1/bRP4b/KN2rN2 w - - 0 1 legal: proof: e4 f5 exf5 e5 d4 Be7 dxe5 Bd6 g4 Bf8 b4 h5 gxh5 a5 Bc4 a4 Bb3 axb3 Kd2 c5 Kc3 g5 Kb2 g4 h4 g3 a4 g2 f4 c4 a5 Bg7 f6 Bf8 e6 Bh6 a6 Qe7 a7 Kd8 b5 Kc7 f5 Qh7 e7 Bf4 e8Q Qe7 f7 Nh6 f8R Nc6 f6 Qe1 f7 Ng8 h6 Nd4 h7 Nc6 h5 Qe6 h6 Nf6 Qh5 Kb6 Rh4 Qg4 Ra2 c3+ Ka1 Bh2 Rb2 Qg7 Qee5 Nd5 Bf4 Ne3 Bg3 Na5 Nf3 g1R Nd2 Rd1 Nf1 Rd6 Qhf5 Rg8 h8B Kc7 Re8 Rf8 h7 Kb6 Re6 Kc7 Rf6 b6 Qfe4 Bb7 Q4f5 Rae8 a8R Bd5 Qfe4 Re7 Re8 Kb7 Qh1 Rg8 f8N Rf7 Rg6 Rf4 Rf6 Qf7 Bg7 Qe7 h8N Qf7 Bh6 Qg7 Ne6 Rf8 Qhe4 Rg8 Qh7 Rf8 Ng6 Rh8 Re7 Ra8 Re8 Ra6 Nef8 Bc4 Bg5 Bf7 Rfe6 Bg8 Bd8 Bf7 Bc7 Bg8 Bb8 Bf7 Ba7 Bg8 Nbd2 Bf7 Ra2 b2+ Kb1 Bg8 Rf6 Rd5 Ra3 Rd6 Rb3 Nec4 Ka2 b1R Rb2 Re1 Nb1 Ne3+ Ka1 Ba2
7n/kpbQn1b1/N5r1/3P1RbQ/K1p1r1pq/5NQB/1R1PR1Q1/1b2B1R1 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 h4 Kd7 a4 g5 f4 e5 f6 c5 h5 Kc7 f7 g3 a6 Kb6 a7 g2 h6 e4 h7 g4 a5+ Kc7 f5 e3 f6 e2 a6 Kb6 Nf3 g1B Qa4 Nh6 Nc3 Nc6 Ne4 Nd4 Rb1+ Nb5 Rb2 Qd6 Bh3 Be7 f8R Bd7 f7 Rc8 a8R Rb8 a7 Bh2 Rg1 Rg8 h8Q Nf5 Qh5 Ng3 Re8 Be6 f8Q Bg5 Qe7 Qd8 Qd7 Nf5 Qd4 Qf6 Qf2 Rg6 Qg2 Ka6 Re7 Rbg8 Rf8 Be5 a8Q+ Kb6 Qa3 c4 Nc5 Rh8 Ree8 Ne7 Na6 Ka7 Qad6 Bc3 Qdg3 Bf5 Kf2 e1B+ Ke2 Qd6 Kd1 Bb1 Rf4 Qf6 Rf5 Nc8 Re2 Nbd6 Ra2 Qe7 Bb2 Bg7 Kc1 Nf7 Bf6 Re8 Kb2 Nh8 Be5 Qf6 Ka3 Ne7 Ka4 Bf2 Bf4 Bb6 Rb2 Bc7 Bd6 Nc8 Bf4 Re4 Bd6 Ne7 Bc5+ Qb6 Bf2 Qc5 Be1 Qf2 Qf4 Qh4 Qe5 Be3 Qeg3 Bg5
Nq6/1R2n2b/2Pq1B1k/2N1r2p/2pN1qQK/n1P4p/Q2RB2R/rr1R1N2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 gxh4 d4 c4 Ra5 Bh6 Ra1 Bf4 Be2 Bd6 Bf1 Bc5 dxc5 Kf7 Ra2 Kf8 Ra1 Ke8 f4 Kf7 Kf2 Kg7 g4 d5 b4 h5 f6+ Kg6 g5 e5 c3 a5 f7 e4 f8Q a4 f5+ Kh7 c6 a3 b6 h3 Kg3 d4 f6 d3 b7 a2 b5 d2 b6 e3 f7 e2 Rh2 e1R Nf3 Re4 Nd4 Qd7 Qg4 d1Q Kh4 Qd5 Be2 Qd3 Qa3 Qd7 f8N+ Kg7 g6 Re7 Nd2 Qd6 Nd7 Rh7 Nc5 Qb1 Nf1 Bf5 Bg5 Re5 Bf6+ Kh6 g7 Ne7 g8R Na6 b8R Nb4 b7 Nc2 Rgd8 Qb5 Qa4 Na3 Rd1 a1Q Qb3 Rh8 Qa2 Bh7 Rd7 Qab2 Rbd8 Qb6 b8N Qc1 Nba6 Qf4 Nc7 Qb8 Rd2 Ra5 Na8 Rb5 Rb7 Rb1 Rdd7 Ra1 Rb1 Rd8 Rbd1 Rg8 Rb7 Rgg5 Ncb3 Rb5 Nc5 Rbb1 Ne3 Rd5 Nf1 Re5
b4B1k/3p3r/2q2b1q/2pn1n1p/n1q2QN1/QRPB3R/Q3NPQ1/1K2NN2 w - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 a4 f5 h4 b5 axb5 Ra6 Ra3 Rg6 Ra4 fxg4 Ra1 g3 Qd2 g4 Qd1 Rg5 hxg5 Bd6 Rh2 Bc5 Rh1 Bf8 Kd2 Kf7 b4 Kg7 e4 c5 e6 h5 c3 g2 Kc2 a4 b6 g3 b7 a3 e7 a2 e8N+ Kh7 e5 Bh6 b5 Qf6 b6 Qe7 e6 Qf6 e7 Qf8 Qd2 Nf6 g6+ Kg8 g7 Qf7 Nf3 g1Q Rh3 g2 Ne1 Nd5 Bd3 Na6 b8N Bg5 b7 Nb6 Nc6 Qf5 b8Q Qf3 Nd4 Na4 Ne2 Qf1 Qbf4 g1N Nf6+ Kf7 Ng4+ Kg8 Bf5 Bb7 Bd3 Qe4 e8Q+ Kh7 Nd4 Ba8 Ne2 Bf6 Qd8 Qg2 Qa5 Nf3 Qb4 Nc7 Qa3 Nb6 Kb2 Nh4 Qc2 Qf1 Nd2 Nf5 Rb1 Qc6 Ka1 Kg8 Rb3 Ncd5 Qb1 Na4 Qbb2 Qh1 Nf1 Rh7 Be3 Qe4 Bd4 Nde7 Be5 Qe3 Bd6 Nd5 Bf8 Qe4 Qc2 Qc4 Qb1 Nab6 Kb2 a1Q+ Kc1 Qa2 Qa1 Qd2+ Kb1 Na4 Q1a2 Qe3 Qh2 Qh6 Qf4 Kf7 g8Q+ Ke8 Qgg5 Kf7 Qh4 Kg8 Qhg3 Kh8 Qgf3 Q6a6 Qg2 Qc6
kb1r1r2/3QQR2/qR1NbnR1/1pB3B1/3rN2p/bP2p3/3RP1q1/1B1K3B w - - 1 2 legal: proof: f4 d5 a4 g5 fxg5 b5 c4 Qd6 cxd5 Nd7 a5 Nb6 axb6 Qxh2 d4 Kd8 g4 h5 b3 f5 b7 c5 b8R Kc7 d6+ Kc6 d5+ Kd7 g6 a5 g7 e5 g5 c4 g6 h4 Nf3 a4 Bg5 e4 Bg2 c3 Nfd2 f4 Nc4 e3 Ra2 c2 Rf1 c1R Nc3 a3 Rb6 Rh6 Bh1 Rh8 Rc2 a2 Rf3 Nf6 g8B a1B g7 Qg2 Bh7 Nh5 g8R Bb2 Be4 Ba3 Rg6 Bg7 Rb2 Rf8 Bb1 Be5 Ra2 Rc2 Qd3 Rd2 Qd4 Rd3 Rd2 Ra4 Kd1 Ra8 Rf6 Kd8 d7 Kc7 Rg6 Bed6 Qg7 Rb8 Qe7 Be5 Rbd6 Kb7 d8B+ Ka8 Bb6 Be6 Bc5 Rbe8 Rb6 Bb8 d6 Rd5 d7 Rd6 Rf2 f3 d8Q Rd4 Qdd7 Rd8 Rf1 f2 Rb7 Qc6 Ne4 Qb6 Ncd6 Qa6 Re1 f1Q Rb6 Qf2 Rf1 Qg2 Rf7 Nf6
KQ1Nk1Nr/r1p1q2b/5r1B/b3Q1P1/1QQ2pR1/2P4B/b1RR2p1/3n2Rq w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e5 d3 Na6 d4 Nc5 dxe5 Ne4 Bh3 hxg4 Bf1 g3 Ra5 g4 Ra1 Ng5 fxg5 Rh7 Qd5 Rh4 Qd1 Rh8 Kd2 a5 Ke3 f5 Kd4 d5 e4 g2 h4 g3 b4 a4 e6 a3 h5 a2 e5 f4 b6 Bd7 b7 Ra6 b8Q Ne7 Kc5 d4 h6 d3 c3 d2 h7 Bc6 b5 Bh6 b6 Qc8 b7 Rg8 h8R Nf5 e7 Bf3 Ba3 Bh5 Rh4 Kd7 e8R Bg7 Rd8+ Ke7 e6 Bg6 Nf3 g1Q+ Nd4 Nd6 Qa4 d1B Bh3 Nf7 Nd2 Re8 Qc4 Qh1 Rg4 Bb3 Rg1 a1R Ne4 Bh7 Nf6 Nh6 Ng8+ Kf8 Rd7 Rb1 Nc6 Qd8 Rd2 Bd4+ Kb5+ Qe7 Nd8 Rc6 Bd6 Bb6 Ka6 Ba5+ Ka7 Ba2 Ka8 Nf5 Rc2 g2 Be5 Qf6 e7+ Kg7 Bd6 Ne3 Ba3 Rf8 e8Q Nd1 Qe5 Kg6 Bd6 Qe7 Bc5 Re8 Bd4 Rf6 Bc5 Qe6 Bf8 Qe7 Bh6 Rbb6 Qc8 Rb5 b8Q Rb7 Q8e6 Rf8 Qb6 Re8 Qbb4 Ref8 Ne6 Kf7 Nd8+ Ke8 Bg7 Bd3 Rh6 Bh7 Rg6 Rc6 Rd6 Rcb6 Rdd2 Rbf6 Nh6 Rh8 Ng8 Ne3 Bf8 Nd1 Bh6 Ra7+
K4b1b/4NRQ1/q3kBbb/2r1pR1Q/1b6/2ppQN2/2NPPnB1/3N1rQ1 w - - 0 2 legal: proof: b4 g5 a4 b5 axb5 f5 h4 c6 c4 g4 c5 Nh6 b6 Nf7 b5 Nh6 b7 Qb6 cxb6 Ng8 Ra3 Na6 Ra4 Nc5 Ra1 Ne4 g3 Ng5 hxg5 f4 Qc2 fxg3 Qa4 Bg7 Qd1 Bf8 b8Q Kf7 f4 h5 b7 d5 g6+ Kf6 b6 a5 g7 g2 Kf2 a4 Ke3 g3 Kd4 a3 Kc5 a2 f5 d4 Nf3 g1B Bb2 h4 Nc3 g2 Qh2 h3 b8N Nh6 b7 Ra5+ Kb6 c5 Na6 c4 Ka7 d3+ Ka8 Be3 b8Q g1B Qbg3 Ng4 Bg2 Rc5 Nb4 Bh6 Nc2 Nf2 g8N+ Kf7 f6 Bf5 Qf4 Ke6 f7 Bg6 Rc1 a1B Qe3+ Kd7 Qhe5 h2 Qh5 e6 Qe1 Kd6 Nd1 Rh7 Ba3 Bh8 Ne7 c3 Rb1 e5 Rb7 Ke6 Bb4 Ne4 Rc7 Bf2 Rf1 h1Q Rd7 Qg1 Ba5 Qh1 Bd8 Bh4 Qg3 Nf2 Qh2 B4g5 Qg1 Qh4 Rc7 Qc4 Rb7 Qa6+ Ra7 Bfg7 f8Q B5f6 Qe8 Bf8 Qf7+ Kd6 Qg8 Rf7 Qg7 Bh4 Nc8+ Ke6 Bf6 Bd6 Ne7 B4g5 Qg8 Bf8 Qg7 Bh6 Nfe1 Ng4 Rf5 Nf2 Nf3 Rc7 Qe4 Bb4 Qe3 Rc5 Nh4 Kd6 Nd5 Rb7 Nf3 Ba5 Nb2 Rb6 Ne7 Ke6 Nd5 Qc4 Rf7 Qa2 Na4 Rb1 Ne7 Rf1 Nb2 Qc4 Nd1 Bb4 Qeg5 Qb5 Qe3 Qa6+
2n2n1R/knrQpn2/b2B3K/1RN1PQ2/1P3q1N/1ppR1b2/1QQ5/bR3B2 w - - 0 1 illegal: No proof kernel
Q1NR1r2/1BQp1bbk/qQ3Kp1/nRbP4/1R3Np1/1P2r1b1/1Q1q4/4B1R1 w - - 0 1 legal: proof: b4 h5 e4 f5 exf5 b5 g4 hxg4 a4 Nc6 axb5 Nd4 Ra5 Nb3 cxb3 Rh5 Ra1 Rh8 Ke2 Kf7 Ke3 a5 Kf4 c5 Ke5 e6 f4 g6 h4 Kg7 d4 a4 f6+ Kh7 b6 c4 b5 c3 d5 c2 f5 a3 b7 a2 b8Q Ne7 f7 Kg7 f6+ Kh7 b6 Ra3 h5 Ng8 b7 Nh6 Nh3 Ra8 Nf4 Ng8 h6 Bb4 f8Q Bc5 f7 Ne7 Qd4 Qa5 Bd2 c1B Be1 Nc6+ Kf6 e5 Qc7 e4 b8R e3 Nd2 e2 Ne4 Qd2 Rb4 Ba6 Rg1 Na5 Nd6 Re8 Nc8 Re3 Qfd6 Rhe8 f8Q Bd3 Qdb6 Bf5 Qb2 Be6 Rb5 Bf7 Rb4 Qc2 Rb5 Bd2 Rc1 Qd3 Rc4 a1Q Rcb4 Rd8 Qe7 Rf8 Qed8 Bc1 Qe8 Qd2 Qed8 Kh8 h7 Qa4 Na7 Qa3 Qa8 Qa2 Nc8 Qa1 Bh4 e1B Be2 Bg3 Bf1 Bh2 Be1 Bg3 Qbe5 Rg8 Nd3 Qdc3 Rg2 Nc4 Ra5 Re2 Rg1 Bh6 Nf4 Qd2 Qb2 Re3 Be2 Nd6 Ba6 Nc4 Bb7 Qa2 Rab5 Qa6 Qab8 Na5 Qa8 Rd3 Ke5 Kg7 h8R Re3+ Re4 Rd8 Re8 Kh7 Kf6 Qd1 Reb4 Qd2 Re7 Rh8 Re8 Rf8 Rd8 Bg7+
B1R3rR/2pQ3N/1qBqr1Bp/2P1nn2/pNq2N1q/b3k2P/7B/Q1N3K1 w - - 0 2 legal: proof: d4 a5 b4 b5 g4 f5 a4 fxg4 axb5 e5 dxe5 Nf6 b6 Bb7 b5 Ba6 bxa6 Ng8 f4 Ke7 Kf2 Ke6 e4 d5 c4 g5 b7 d4 f5+ Kd7 e6+ Kc6 e7 Kc5 e8Q d3 a7 Kd4 f6 d2 e5 Qe7 c5 Nd7 b8N Bg7 f7 Qd8 f8N Nh6 e6 Nf5 e7 Rg8 Bb5 g3+ Kg2 g4 Nc3 Bh6 Nd5 Ne5 Qd7 a4 Rb1 Rg6 e8B Re6 Bc6 Bg5 Qf1 d1Q Na6 Qb3 Bh5 Qc4 Rb8 Bd2 Nab4 Bc3 Nd3 Qe7 Bf7 Qd6 Bf4 Bb4 Nh3 Ba3 Bg6 Ke4 Qa1 h6 Nh7 Qa6 Rh8 Rg8 Kf1 g2+ Kf2 Qa5 a8B Qa7 Rb1 g1Q+ Ke2 g3 Rb8 g2 Rc8 Qb7 Nc1 Qh1 Kf2 Qb3 Bg3 Qb6 Nhf4 g1Q+ Ke2 Qd4 h3 Qc3 Kf2 Qc4 Bh2 Qe1+ Kg2 Qh4 Kg1 Kf3 Nb4+ Ke3
1k1N3N/Nr2b1p1/B1p2qb1/N1p1Pn1b/nb3Q2/3Q1B1K/1qBR2P1/2B4R w - - 0 1 illegal: No proof kernel
1rbB1r1k/1BRBR1n1/1pp1r3/3p1r2/1r2n1Pb/2B1QN2/1N1P1R1K/5R1Q w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d6 hxg5 b6 c4 Qd7 c5 Qa4 c6 Qa6 b4 Qb7 cxb7 a5 Qg4 axb4 Qh5+ Kd8 Qd1 Ke8 f4 Kf7 Kf2 Kg7 Kg3 h5 a4 e5 a5 d5 f6+ Kh7 a6 e4 f5 b3 a7 c6 f7 h4+ Kh2 b2 f6 h3 g6+ Kh6 g7 Kh7 Nf3 e3 Nc3 b1R Bb2 e2 Na4 e1R Bc3 Be6 Nb2 Bc5 f8Q Nd7 b8B Ne5 f7 Nf6 g8R Ne8 Bc7 Bd6 Bd8 Bc8 Qe7 Rb8 f8R+ Ng7 a8B Nd3+ g3 Re6 Ra7 Bb4 Rc7 Nf2 Bb7 Ne4 g4 Bc5 Bfa6 Bf2 Rf1 Be1 Re8 Bh4 Rgf8 Rg8 Rf2 Kh8 Qh1 Rf1 Rf4 Rf8 Qc5 Rb1 Ree7 Rf5 Qe3 Rf8 Nc4 Rb4 Nb2 Rf5 Kg1 h2+ Kg2 Ng5 Bd3 Rf8 Bf5 Ne4 Rf1 Re5 Bd7 Ref5 Qhg1 h1R Rf2 Rh3 Qh1 Rg3+ Kh2 Rg1 Ne5 Rc1 Rf1 Re1 R4f2 Re2 Nf3 Nd6 Qd3 Re6 Qe3 Ne4
n1BN4/1Qr3np/1bR2B2/4Np2/3QRPP1/N1N5/r1bbQK1p/kb2Q2n w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 d5 axb5 d4 Rh3 Ba6 Rh1 Qd5 exd5 Bc8 f4 Kd7 c4 e5 g4 a5 b4 h3 d6 Ke6 b6 d3 c6 h2 b7 d2+ Ke2 e4 c7 e3 d7 a4 d8Q a3 b5 a2 c5 Ne7 c6 Nf5 b6 Bc5 Na3 Na6 b8N Ng7 b7 Bb6 Nd7 Kd5 b8N Kd4 Qe1 Kc3 Ne5 Bf5 c8Q Bb1 c7 f5 Qb7 Kb3 c8Q Nc7 Kf3 d1B+ Ne2 Bdc2 Nc3 e2 Qd4 Re8 Bg2 Re7 Kf2 Rf7 Bd2 Kb2 Nbc6 Ra5 Nd8 Na8 Bc6 Rc7 Qe6 Ra7 Bd7 Ra5 Qf1 e1N Rg1 Ng2 Bc8 Ne3 Qe2 Nf1 Qe8 Ng3 Rc1 Bd3 Re1 Bbc2 Rac1 a1B Qd1 Bb1 Re4 Bdc2 Qe1 Ra7 Ncb5+ Ka2 Bc3 Bb2 Qe6+ Ka1 Qc4 Ra4 Qce2 Ra5 Bb4 Ra7 Be7 Bc3 Bf6 Ra6 Qc5 Bd2 Nc3 Ra5 Qd4 Ba4 Rc2 Ra7 Rb2 Bc2 Rb5 Ra5 Rc5 Ra7 Rc6 Ra6 Nab5 Ra2 Na3 Nh1+
N7/bP6/3R1Q1p/Q2n1P1r/2kpKR1r/2ppqQN1/b2Q1b2/1N1Bn1BN w - - 0 1 illegal: No possible last move, all moves rejected
k2q2r1/1ppp1R2/3Q2R1/1P1n1Qn1/PN4RK/RBB3bB/2nN1rBp/b7 w - - 0 1 illegal: No proof kernel forced: wxLB
1R1b3q/1Qr3QQ/2P1n1NB/P2qp1KR/Qrn3p1/p4pNb/4Bk2/4R2R w - - 0 1 illegal: No possible last move
1nQR2N1/4r1p1/Np1P2K1/RB1Qp3/2p1nk1q/QR6/Q1P1bq1R/2rBb3 w - - 0 1 legal: proof: e4 a5 g4 f5 gxf5 d5 exd5 h6 b4 Qd6 bxa5 Qd7 Bb2 Qd6 Bf6 Qd8 Bg5 hxg5 Ke2 Kd7 Kd3 Kd6 Ke4 c5 a4 e5 f4 b6 h4 g4 d4 g3 h5 g2 h6 Bb7 h7 Qe7 f6 Qe6 f5 Ra7 a6 Ra8 a7 Qe7 f7 Qd8 f6 Bc6 Kf5 Nd7 a5 Rb8 a8B Rb7 a6 Be7 f8Q Ra7 f7 Qb8 Qc8 Ba4 f8Q Bb3 Ne2 g1Q Rh3 Ba4 Nec3 Ndf6 Na3 Ne8 Bb5 Rb7 a7 Qf1+ Kg6 c4 Qb1 Qf3 Qa2 Rc7 Bb7 Ngf6 a8Q Rg8 h8R Ne4 Rh2 Qh1 R8h3 Rh8 Qf3 Bh4 Qa6 N4f6 Ne4+ Ke7 Rg3 Nd7 d6+ Ke6 Nf6 Qa7 Rgh3 Be1 Ng8 Nf6 Qc6 Qf1 Rb3 Qf2 Qg2 Qa8 Bf3 Ne4 Bd1 Kd5 Qf3 Nb8 d7 Rh7 d8R+ Rd7 Rg2 Rh1 Rh2 Ke6 Qa7 Qc6 Qa5 Qc5 Qfc3 Qe7 Qcb2 Qeh4 d5+ Kd6 Re8 Rc7 Rd8+ Kc5 d6 Kd5 Qc1 Re7 Qe3 Nd2 Qec5+ Ke4 Qd5+ Kf4 Ba6 Bd7 Be2 Nb1 Nb5 Rf7 Qb2 Bd2 Nc7 Nc3 Bb5 Rc1 Bd1 Ne4 Na6 Be1 Raa3 Bh3 Qa2 Bf1 Qb4 Bd3 Ra5 Re7 Qba3 Be2
N3B2R/1Prb4/2N5/Q1bp1kB1/P1p1nNq1/3p1q2/3pRnBr/2B1NKQ1 w - - 0 1 illegal: Other
Q5R1/RBK3rp/1n3R1p/2b1BQRQ/pQq3Np/2N1n2P/2P1q3/k4qr1 w - - 0 1 illegal: Other
2R2rN1/Nq2p1Qq/2B1pqQB/n4b1R/5B2/k1pPb1p1/1R2n1PK/4R2B w - - 0 1 illegal: Other
2N2Q2/2p2nRq/p1P1nB2/P1p4N/5NpR/1qBrRr1Q/4KRbN/3n3k w - - 0 2 illegal: No extended proof kernel
1K1BQNrB/1bNRP3/2pNQN1q/1rP1B1k1/pp3b2/4R1p1/6qn/r6B w - - 0 1 illegal: No proof kernel
k7/B3R3/2nN2b1/P1p2pB1/2R4p/Q1K2PR1/Bp1Qbb2/Rqq1nBNr w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 b4 a6 h4 Nd7 e5 Nb8 e6 a5 hxg5 Ra6 d3 Rd6 d4 Rd7 d6 axb4 d5 Bh6 exd7+ Kf8 Be2 Kg7 Bc4 Kg6 Bf1 Bf8 Kd2 Kf5 g4+ Ke4 a4 e5 g6 h5 g5 b3 a5 b2 g7 b4 g6 b3 Ne2 Qg5+ Kc3 Na6 d8R Nc5 d7 Nd3 d6 Kd5 f3 Kc6 Nd2 Kb7 Nc4 b1B Re8 b2 d8B e4 d7 e3 Qd2 Ne7 g8R Ne1 g7 Nc6 Nd6+ Ka8 Rh4 Bg6 Rc4 f5 Ng1 e2 Re7 Ba6 Qd3 Rh7 Be3 Rh6 Ba7 Qc1+ Qc2 Qb1 Qb3 Rh8 Qa3 Rh6 Re6 Be7 Re5 Bh4 Ree4 Bf2 Bg5+ Nd8 Re7 c5 Nc8 Nc6 d8Q Nc2 Qd6 e1Q+ Qd2 Qec1 Nd6+ Nb8 Rg4 Be2 Rg3 Rh7 Rh8 Rh6 g8B Rh7 Ba2 Ne1+ Qc2 Rh6 Rhe8 Rh7 Re4 Rh8 R8e7 Nc6 Rb4 h4 Rc4 Rd8 Nb5 Rd5 Nd6 Rd1 Nh3 Nd3 Bg2 Rg1 Bf1 Rh1 Ng1 Qe3 Qd1 Ne1+ Qd3 Qec1+ Qc2 Qd1 Qd2 Qdc1+
b1n1b1NQ/k1B5/3Pp2R/2p2Q1Q/prQrK1Rq/R1Pp3R/8/qB4bN w - - 0 1 illegal: No proof kernel
3n2qq/4QRBB/7p/pR5r/k2N1QR1/1p1b1RB1/P1n1P1pN/q2Bb1K1 w - - 0 1 legal: proof: g4 b5 h4 g5 b4 a5 d4 c5 bxc5 f5 Bd2 e5 dxe5 Ra6 Bc1 Rg6 Qd2 fxg4 Qd1 g3 Bh3 g4 Bf1 Rg5 hxg5 Qb6 Qd2 Qc7 Qd1 Qd8 f4 d5 c4 Kd7 e6+ Kc6 g6 h6 e7 g2 Kf2 b4 e8B+ Bd7 f5 d4 f6 d3 g7 d2 f7 Ne7 g8R Ng6 Qa4+ Kc7 c6 Kb6 c7 d1Q c8R Qe7 c5+ Ka6 c6 Qd8 c7 Ne5 Nd2 Nf3 Rb1 Be6 Rh3 Bf5 Nb3 Nc6 Bf4 Nfd4 Nf3 Bd3 Nh2 Bd6 Rf8 Rg8 Rf3 Rg5 Ra8+ Kb6 c8Q Rh5 Qd7 Be5 Rb2 Qa1 Qe7 Bf6 Bd7 Qe8 Rc8 Nd8 Rc4 Bg5 Bb8 Bd2 Be6 N4c6 Rcf4 Nd4 Rg8 Bc3 f8B Ka6 Rf7 g3+ Ke3 Be1 Bf5 Bb5 Bc2 Bd3 Bd1 Kb6 Rf2 g1Q Bg2 Rc5 Be4 g2 Bg3 Nb7 Bh7 Rh5 Rg4 Nc2+ Kf3 Qa8 Rf1 Qd4 Rf2 Qdd8 Bg7 Qh8 Rf1 Bc3 Kf2 Qag8 Kg1 Nd8 R1f3 Bd2 Nd4 Be1 Qa3 Ka6 Rb3 Kb6 Qc1 Ka6 Qf4 Kb6 Nf5 Kb5 Nd4+ Ka4 Rc3 b3 Rc5 Qb1 Rb5 Qa1
2R2qQr/2pr1N2/q1pP3q/NN2KBb1/pQ4n1/4B2p/2PR2NQ/2Qb1k2 w - - 0 1 illegal: No proof kernel
1rB5/R5Qb/pb2R3/K3B1n1/1R1B1N1p/PqQ1R1Pp/k1rN1p1r/2r3B1 w - - 0 1 legal: proof: f4 c5 h4 e5 b4 g5 bxc5 gxh4 e4 d5 exd5 e4 Be2 Nc6 Bf1 Ne5 fxe5 Qd6 Bb2 Qc7 Bc1 Qd8 c4 Kd7 d4 h5 Kd2 b5 Kc3 f5 Kb4 f4 g3 h3 e6+ Ke7 d6+ Kf6 e7 Ke6 e8R+ Ne7 c6 h4 d5+ Ke5 c7 f3 c5 e3 d7 e2 c6 e1R d6 Rb8 Nd2 Kd4 Ka5 Kc3 Ne2+ Kd3 Nf4+ Kd4 Bb2+ Kc5 a3 b4 Be5 b3 Rb1 b2 Ba6 Ng8 Re6 Re2 Re1 Rh2 Re3 Nf6 Qg1 Qe8 d8B Nh7 d7 Qf7 Bdf6 Ng5 d8B Qg8 Bb7 a6 Qf1 Bd7 c8R Be8 c7 Bg6 Qd3 Bh7 Qg6 Qf7 Qg7 Rg8 Re8 Qb3 Re6 Bd6 Bde7 Re8 Rd8 Rf8 Rd7 Rfc8 Ne4+ Kc4 Bd4 Re2 Bfe5 Bc5 Bf8 Rh2 Rde7 Rd8 c8Q Rd7 Rf7 Rc7 Bfd6 Rc6 Qch8 Rc7 Bc8 Rc6 Ra7 Rc7 Rh1 b1R Rf1 Rbb2 Rb1 Rc6 Bc7 Rbc2 Bb6 Rc1 Re1 Rc7 Bg1 f2 Re3 Be7 Bbd4 Bc5 Re1 Qb2 Re2 Kb3 Re3+ Ka2 Nd2 Qc2 Rb4 Qb3 Rab7 Be7 Ra7 R7c2 Qe8 Bf8 Qc6 Bd6 Qc4 Bc5 Qc3 Bb6+
2B1K3/b1B1n3/1B1NpnPR/R2pP1Q1/RpN2b2/1b1kB2p/1Qqp4/4rR2 w - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 bxa5 b5 h3 f5 gxf5 g5 h4 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Qc7 Ba3 Qb6 Bc1 Qd8 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 d3 f4 b4 a4 h4 e4 e6 c4 g3 a6 g2 g6+ Ke7 c5 Rh6 c6 Rh8 f6+ Ke8 f5 Bg7 a7 Bh6 a8R Nd7+ Kd6 Ne7 a5 Rf8 a6 Bb7 c7 Bc8 a7 Ng8 e5 Ne7 Qb3 Bg7 Nh3 g1B Be3 d2 Ng5 Bh6 Qb2 Rh8 f7+ Kf8 Ne4 Kg7 f8B+ Kg8 f6 Bh2 Na3 Rh7 f7+ Kh8 Ba6 Bg3 Raf1 Bf2 Nc4 Bf4 Bb6 Qe8 Bh6 Nf6 f8B Bd7 c8Q Ba4 Qd8 Bb3 Bc8 Qa4 Kc7 Qa2 Ned6 Qb1 Bg5 Qc2 Rh3 Rh5 Bgh6 Rg5 Rhh1 Rg1 Rh3 Nh5 Kd7 Rh1 Ke8 Kg8 Ra1 Re1 Ra4 Bc5 Rf3 h3 Rf1 Bce3 Rb8 Bf2 a8R Kh8 Bc7 Ba7 Bg5 Kg8 Bfh6 Kh8 Bh4 Kg8 Bf2 Kh8 Bfb6 Kg8 Bg5 Kg7 Bh4 Kh6 Bhf2 Kg5 Bfe3 Kg4 Rb7 Bb8 R8a5 Ba7 Rh1 Kf3 Rf1+ Ke2 Rb8 Ng8 Qg5 Kd3 Ba6 Ra1 Rd8 Ne7 Bc8 Re1 Rd7 Nf5 Rh7 Ne7 Rh6 Nf6+
1R1rkBQQ/2pp3r/2P3N1/p2r4/BP2NpQn/1p5B/R4bq1/2QK1Bn1 w - - 0 1 illegal: No proof kernel
k3N2Q/qnQ5/2Rprn1n/pB1N1p1N/b2B2pB/5P2/1pBPK2N/1bR5 w - - 1 2 legal: proof: e4 b5 a4 h5 g4 c5 gxh5 f5 b4 a5 e5 e6 Ra3 Be7 Ra2 Bf6 exf6 Ra6 Ra3 Rb6 Ra1 cxb4 Ra3 b3 Ra2 b4 Ra1 Rb5 axb5 Kf8 Bg2 Kf7 Bf1 Ke8 c4 g5 h4 e5 f7+ Ke7 f8N Kd6 h6 Kc7 b6+ Kb7 h7 g4 h5 b2 h6 d6 c5 b3 c6+ Ka8 c7 e4 b7+ Ka7 Bd3 e3 Nc3 b1B Ne6 e2 Bc2 Qg5 Nf3 Qe3 Ng7 Ba2 Nh5 Na6 b8N Qg5 Nd5 Ka8 Nd7 Qh4 Bb2 Nb4 Qc1 Na6 N7f6 Qh3 Nh2 Qe3 f3 Bb1 Bd4 b2 Ne8 Be6 c8B Nc5 Bd7 Nb7 Bb5 Bd7 Ra3 Qe7 Rc3 Qe3 Bf6 Qa7 Bh4 Bc6 Rc5 Bd7 Kf2 e1N Ke2 Nd3 Rc6 Nf2 Rf1 Ne4 Rg1 Ngf6 Rd1 Rf8 h8B Ng8 h7 Nh6 Bd4 Rf6 h8Q Re6 Bcd3 Rf6 Qc5 Rg6 Bc2 Re6 Rc1 Kb8 Rb6 Ka8 Qc7 Bc6 Ba6 Ba4 Bb5 Rg6 Ra6 Re6 Rc6 Nf6+
qrKn1k1N/Qp5R/1p2PqQr/1B3p1n/1pB2P1B/BR4N1/1N1N2p1/3b4 w - - 0 1 illegal: Other
1bN1Q2Q/2R1q1p1/k3p1Pr/1p2P3/qB1Np3/BRpb2K1/3n1N2/n2BN2B w - - 1 2 illegal: No proof kernel
2B2k1r/1pBn2n1/5N1N/2PQp1RQ/3R1pq1/QBp1qpB1/Q3P3/1b3Kr1 w - - 0 1 illegal: No proof kernel
kNQqNB2/p3p3/PnRqBK1Q/7b/1B4Q1/1pr3p1/B2pP3/RQ1br3 w - - 0 2 illegal: Other
3qB3/1bnq2Q1/3pN1pB/NkbP1Q1Q/3rnrP1/q1b1n2K/2R1R1B1/2Q3B1 w - - 0 1 illegal: No proof kernel
R2R2Q1/1NB1p2Q/NnK1B1p1/2NNnRq1/3bbqP1/2rr4/2r1P2b/k3nR2 w - - 0 1 illegal: No proof kernel
KRNr1bBr/nB1p3Q/pbbN3R/Q7/PbRP1k1B/n2Bqn1b/5R2/8 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 b4 c5 bxc5 Rh3 Qf3 Rh7 Qd1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 h4 e6 d4+ Ke4 f4 g3 a4 b6 c4 e5 h5 g2 c6 g4 f6 g3 c5 Qc7 f7 Qb7 f5 Nh6 c7 Be7 f8R Bf6 c6 Bg5 f6 Nf7 h6 Bd2 h7 Bb4 Nd2+ Kf4 Qe1 e4 Bc4 e3 Ne4 Ne5 Bg8 Nc4 Nf3 g1N f7 g2 Nfg5 Nf3 Nd6 g1B Rh6 Bh2 Nge4 Bc5 Ba3 e2 Qa5 e1B Rc1 Beb4 Re8 Bg3 Rc2 Bh4 Rf2 Be7 f8R+ Ke3 Rf5 Bf8 Rfh5 Kf4 Rh1 Na6 Rc1 Qb8 Rd8 Bb7 c8B Qc7 Re8 Nb8 Rcc2 Qd8 c7 Qe7 Rd8 Bd5 Ba6 Nc6 c8B Be6 Bcb7 Bh3 Re8 Rd8 Nc8 Qe5 Ned6 Qe3 Bc1 Ne7 Be4 Nc6 Bb7 Na3+ Ka6 b5 Rc4 Bb6 Bf5 Bc3 Bc2 b4 Bd3 b3 Bd2 b2 Be1 b1B Ne7 Ra8 Rb8 Bb4 Nec8 Be7 Rfc2 Ba2 Bh4 Bf8 Rf2 Bb1 Bf1 Be4 Bd3 Bg7 Bf7 Rd8 h8Q Bf8 Bg8 Ne7 Bbd5 Nc6 Kb7 a6 Qh7 Na7 Be6 Bg7 Ne7 Rf8 Re8 Rh8 Bg8 Rc8 Rd8 Rc6 Rb8 Rc8 Ka8 Bf8 Bb7 Rd8 Nec8 Bc6
2BBQB2/bNp5/1krR1QNq/pn1nB1b1/3b2R1/PrN3K1/bbPr4/5N2 w - - 0 1 illegal: No proof kernel
q6r/4B1K1/Q2QnB2/rQ2rq2/1bQpRnr1/2N1pRBb/1kBPPN2/1r6 w - - 0 1 illegal: No proof kernel
1bRR2Br/N2RnbQb/2q5/p1R5/1pqQN3/1bn1B3/PP1K1b2/1rBB3k w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 f4 Kf7 d4 Kf6 g4 a5 d6 h5 d5 b5 d7 e5 d6 c5 Bc4 e4 Be2 h3 Bc4 h2 Na3 e3 Bd2 h4 Qe2 b4 Be6 c4 Rc1 h3 Bf7 c3 Bb3 c2 Qd3 e2 Nf3 Na6 Ng5 Ne7 Be3 Qb6 d8R Be6 d7 Qc6 Kd2 Nc7 Rc8 Ncd5 d8R Nc3 Rhd1 h1B Nb5 h2 Na7 Bf7 Qc4 Bhd5 Ne4+ Kg7 g5 h1B f6+ Kg6 f5+ Kh5 g6 Kg4 g7 Kf3 g8B Kg2 Qd4 e1B+ Kd3 Bh4 Kd2 Bf2 Ba4 Bb3 Rd7 Bg6 f7 Bh7 f6 Bh6 f8B Bf4 f7 Bb8 Bfh6 Kh2 Nf6 Bhd5 f8Q Bf7 Ne4 Qc4 Qfg7 Qc6 Nb5 Ra7 Bhg5 Rc7 Na7 Kg2 Rh1 Qc4 Rh6 Rc5 Rhd6 Kh2 Bh6 Rg5 Rdd8 Rg1 R6d7 Kh1 Rf1 Bfg3 Rf5 Rb1 Rfc5 Bf2 Bb5 Qd5 Be2 Qc6 Bd1 c1Q+ Kd3 Ncd5 Ke2 Qc3 Bc1 Qc4+ Kd2 Nc3 Bg5 Qh6 Be3 Qc6
R1r3N1/2n1p1r1/3q4/nBR3nN/3bq1pk/1Nr2br1/Q1N1P1P1/1KQRR1B1 w - - 0 1 illegal: No proof kernel forced: bxLB
2q1bQ1B/1pbrpR2/2R2n1Q/1P2P3/1b2Rb2/kb1Q2n1/1r1QNN2/1B2Kb1R w - - 0 1 illegal: No proof kernel
Nr3bn1/k1N3B1/N1Q5/RQ1pr2N/1nQ1b1pK/Q2Bb1PR/3Pb3/nnq5 w - - 0 1 illegal: No proof kernel
Bb2N2r/1n4B1/4b1p1/1RKn2P1/3BRprQ/Nqn1pr1N/1Q3P1q/N2k3B w - - 0 1 illegal: No proof kernel
n1q1B2R/1k2bRB1/1p1K2p1/qNrn4/QP1r1N2/3q2Pp/1B4BQ/NNr2b2 w - - 0 1 illegal: No possible last move, all moves rejected
1Nk2q1B/B2bBrpq/2p3K1/1rP4R/rqB1R2b/1n2N1Q1/2Rp2P1/1Qn1R3 w - - 0 1 illegal: No proof kernel
2b2Nkn/B7/2rRnR1Q/K4ppp/N1n3qP/2Bp2PQ/3r2Br/B2R1Rb1 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 Kd2 a5 b4 g5 e4 d5 h4 h5 c4 d3 Kc3 f6 g3 Kf7 c5 a4 c6 a3 b6 d2 e6+ Kg7 e7 a2 e8R Bg4 b5 Bc5 c7 Ra4 c8Q Ra7 b7 Qb6 e5 Nc6 b8B Ra6 e6 Ra8 e7 Rh7 Be5 Kf7 Ne2 Bg1 Bb2 Ra6 Rf8+ Kg7 e8R Bf5 Re6 Rh8 Rd6 Nd8 Kb4 d4 Nf4 Ne6 Bc3 Ne7 Bg2 Ng6 Qc6 d3 Qg4 d1N Qh3 Rh6 Bed4 Qb7 b6 Qc8 b7 Nb2 b8B Nh8 Bba7 Nc4 Ng6 Ra3 Rf7+ Kg8 Nf8 Rb3+ Ka4 Rb2 Qa6 Rd2 Be5 Bc5 Rf1 Bg1 Kb5 Be4 Bed4 Bb7 Ka4 f5 Rf6 Qa8 Be5 Bc8 Rd1 Qe4 Bed4 Nb6+ Ka5 Qe2 Bb4 Qe4 Nc3 Qg4 Na4 Rg6 Rac1 a1R Bbc3 Raa2 Ba1 Rac2 Bdc3 Rb2 Rf1 Rbc2 Rcd1 Nc4+ Kb5 Rg7 Qc6 Rc7 Qb6 Rc6 Qa6 Ne3 Ka5 Ra2 Qb6 Nc4+ Kb5 Bh2 Be4 Rf2 Rd5 Ng7 Rf7 Rc7 Qh6 Rc6 Rd6 Ne6 Rf6 Bg1 Bh1 Rh2 Bg2 Rd2 Kb4 Nb2+ Ka5 Nc4+
2RB3b/N1Bk4/4q1Bp/B6b/3p1p1b/NQQR1P2/Q1pP1n1r/2qn1KQr w - - 0 1 illegal: No proof kernel
1Q2QbBr/N1N3pB/q2rp1P1/K1k1BQnb/QRp3RB/1p2n3/2P1n3/6q1 w - - 0 1 illegal: No proof kernel
QN2qqQB/rR1Nkbbp/1B1r4/p3n2R/4pn2/P1R2p2/1BR1P3/1BK3q1 w - - 0 1 illegal: No proof kernel
1B1K4/2R2pp1/1N2Q2p/RbRnN1P1/nbp1q2k/rQ5P/1b2qRQr/3B1Q2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 b4 c5 d4 a4 e4 c4 g4 a3 d6 h6 d5 a2 d7 Be7 d6 Ra6 h3 Qa5 d8R Ra7 d7 Qa4 b6 Qa3 b5 Qe3 b7 f3 b6 f2 Rh2 Na6 b8R Nc5 b7 Ra5 Be2 f1Q Nc3 Ra7 Rf2 Ra8 Nf3+ Kg6 g5 Kh5 Na4 Qe1 Nb6 Bf6+ Kd6 Q3d2+ Kc7 Qf1 e5 Nb3 e6 Qg2 e7 Qg3+ Ne5+ Qf3 e8Q Kh4 Qf1 Be7 Bd1 Bb4 Qe6 Qde2 Bf4 Nc5 Rf8 Ra6 d8Q Ra3 Qd2 Na4 Kd8 Bd7 Rc8 Bb5 b8Q Nf6 Rc5 Nd5 Qb7 Qfe4 Qc2 Rg3 Qb3 Rg2 Re8 Rh2 Rc7 Bd6 Rc5 Bf8 Re7 Rg8 Rec7 Rh8 Rc1 a1B Qa8 Bb2 Ra1 Nac3 Ra5 Na4 Nd3 Rg8 Bd6 Rh8 Ne5 Rg8 Re7 Rh8 Bb8 Rg8 Rec7 Rh8 R5c6 Bb4+ Kd7 Qg6 Ra6 Nf4 Ba7 Nc3 Qb7 Ra8 Bb8 Qf5 Kd8 Qfc2 Rc5 Qg6 Qbg2 Nfd5 Raa7 Qge4 Rab7 Ra1 Ra7 Na4 Ra5 Ra3
B1q5/3pbQp1/R2QqQR1/Kn2BNP1/N1p4n/n1pPrQ2/k3bRR1/7r w - - 0 1 illegal: No proof kernel
1KQ4b/1B2p1RQ/Q2pb1Rr/1pq1k1BN/1Pr1Ppn1/1Q6/R1N2p2/4Rn1b w - - 0 1 illegal: No proof kernel
k2N2Q1/1r2P2R/3K1Q1n/1Bq1R3/bQ4r1/2rPp1q1/Q2NQr2/1R3Nr1 w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 b5 g4 h5 gxh5 e5 b4 e4 a4 Kd7 e3 Bd6 Bb2 Be5 fxe5 Nc6 Bc1 Nd4 exd4 Qe7 Ba3 Qe8 axb5 Ke7 b6 Qd8 b5+ Ke8 Bb4 axb4 Ke2 Kd7 Ke3 g5 h4 c5 b7 Kc7 b8Q+ Kd7 b6 f5 d6 Kc6 d7 b3 b7 c4 e6 c3 e7 g4 Kf4 b2 Ke5 e3 h6 c2 h7 c1Q h5 f4 d5+ Kb6 d6 g3 h6 f3 Qa7+ Kc6 b8Q g2 Qe2 f2 Qb4 Qe1 Qa2 Qc1 Rh5 Bb7 Nf3 g1R Nh2 Qc8 d8Q Qh3 d7 Rc8 Qf8 Kc7 d8N Kb8 Kd6 Rc3 Qf6 Qg3+ Re5 Qc2 d3 Qc1 Nd2 b1R Bh3 f1R Bd7 Rf2 Bb5 Bc6 Nhf1 Rb2 Rb1 Rbb3 Ba6+ Ka8 Bc4+ Ba4 Bb5 Rb2 Qg7 Nf6 Qg5 Ng4 Qf6 Rf8 h8Q Rg8 h7 Nh6 Qhg7 Rbb3 h8R Rb2 Qgf7 Rg4 Rh7 Rbb3 Qc5 Rbb4 Qg8 Rb2 Be8 Rb7 Bb5 Qb2 Qcc4 Qb4+ Qc5 Qc4 Qb4 Qc5+
BQb1rNq1/2Qp2br/k2N3b/3K3Q/4Pq2/2N1NP2/B7/B2Rr1rN w - - 0 1 legal: proof: a4 b5 b4 a5 g4 f5 d4 e5 f3 h5 gxh5 c5 dxc5 e4 Ra2 e3 Rb2 f4 axb5 Qf6 b6 Qd8 b5 Nc6 Rb3 Ne5 Rb4 Nf6 Nc3 Ne4 Nb1 axb4 fxe4 f3 Qd2 f2+ Kd1 Nf3 exf3 Rb8 Ke2 Ra8 Qe1 Ra1 Qd1 Ra8 Kd3 g5 Kc4 b3 h4 e2 h6 e1R c6 g4 c7 b2 h5 g3 b7 g2 b8N Ra5 h7 Ra3 b6 Ra8 h6 Ba6+ Kd5 Ba3 c8B Qc7 c4 Kd8 c5 Bb4 b7 Qa5 Qc2 Kc7 Nh3 g1B Bc4 f1R Nc3 b1Q Bb2 Be3 Ba2 Bg5 Nf2 Rc1 Nc6 Qa3 Ba1 Qbb2 Na5 Bh4 b8Q+ Kd8 c6 Qb1 Nc4 Rg1 Ne3 Rce1 Qc1 Re8 h8Q Bg5 h7 Bf8 Qhe5 Qe7 h8N Bg7 Ng6 Qf6 Nf8 B5h6 Qh5 Qf4 Qc2 Qb6 Qc1 Qbc7 Bb7+ Qc8 Qc2 Rg2 Rf1 Rg1 Nh1 Re7 Qd6 Rb8 Ba8 Bb7 Qb4 Kc7 Qd6+ Kb6 Qb1+ Ka5 Qc7+ Ka6 Qb2 Re2 Rd1 Ree1 Qbh2 Qe8 Qg3 Qg6 Qgh2 Rbe8 Qb8 Bc8 c7 Be5 Qc2 Rh7 Qch2 Ka5 Qc2 Beg7 Qch2 Ba6 c8N Qgg4 Nd6 Bc8 Qc7+ Ka6 Qb2 Qg6 Qbb8 Re6 Ncb5 Qgf7 Nc3 Qg8 Qg6 Re8+ Qf7 Re6 Qh5 Re8+
7Q/Pr1Q1Nb1/1bQ4B/Pp5N/K5Q1/RBbbBNb1/bQ1qk3/2r5 w - - 0 1 legal: proof: c4 c5 e4 d5 cxd5 f5 exf5 h5 g4 c4 gxh5 a6 b4 Nc6 d4 Na7 b5 Nf6 b6 Ne4 bxa7 Nc5 dxc5 Qd6 Bh3 Qd7 Bf1 Qd8 Kd2 Kd7 Kc2 b5 a4 e5 h4 g5 f4 e4 a5 b4 c6+ Kd6 h6 Kc5 h5 g4 h7 c3 Kb3 c2 d6 g3 h6 g2 d7 e3 c7 e2 f6 e1B f7 Qg5 d8N Be6+ Ka4 b3 f5 b2 f6 Bg4 Qd7 Be7 f8B Rc8 f7 Qg6 Rh5+ Bf5 Nh3 g1B Bc4 Rb8 Ra3 Bd6 c8Q+ Kd4 Nf4 Qg2 Bb3 Bd3 Nd2 Ke3 Qcc6 b1B Rb5 Rb7 Nh5 Ba2 Nf3+ Ke2 Be3 c1B Qg4 Rg8 h8Q Bc3 h7 Bg3 Bfh6 B1b2 f8Q Rg6 Qcd7 Rc6 Qfe8 Bg7 Qee4 Rc1 Nf7 Bbc3 Qec6 Qf2 Qb8 Qe1 h8Q Qd2 Beg5 B1d4 Be3 Bb6 Qe5 Bb4 Qa1 Bbc3 Qb2 axb5+
Q1qNr3/1Q2Nbp1/R2q1NQ1/1pPn2BK/1B2BB2/1b3r2/n1P5/k2B4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 a6 c3 dxc3 Rh7 c4 Rh6 c5 Rh8 gxh5 e5 a4 b5 a5 Bd6 Ra4 Bc7 Rd4 Bb6 axb6 exd4 Ke2 Ke7 Kf3 Kf6 Kg4 Ke5 h4 d5 f4+ Ke4 b7 d3 a7 Kd4 h6 d2 h5 Be6 h7 Nd7 b8Q Qb6 h6 Qb7 Nc3 Qc7 Qb7 Re8 a8B Qa5 Ba3 Qa7 Ne4 Qa6 Nf6 Kc3 Bb4+ Kb2 Be2 d4 Kh5 d3 Nh3 Ne7 Ng5 Nd5 Qg1 d1B Nf7 d2 Qg6 Rc8 Nd8 Rf8 h8N Nc7 h7 Bg8 Bg4 Be2 Ra1 Bd3 Bd1 Qd6 Ra6 Qd5 Ne8 Qf3+ Kh4 Qg2 Qbc6 Bf7 f6 Rb8 f5 Rb7 Bg4 d1Q Qh6 Bh5 f7 Ne6 f6 Ng5 Ng6 Rh8 f8B Qd5 f7 Qe6 Bd6 Nf6 f8B Qc8 Bfe7 Bc4 Bc7 Qd2 Bd1 Bb3 Bb8 Rd7 Bf4 Nge4 Qc7 Rd3 Bd5 Ng4 Beg5 Ne3 Ne7 Bf7 Qg6 Nc3 Nf6 Na2 Qb8 Ka1 Qa8 Re8 h8Q Qe2 Qhh5 Qg2 Qf3 Qd2 Kh5 Rc3 Bb7 Qd6 Qc6 Rd3 Qd7 Rc3 Be4 Nd5 Qdb7 Rf3
1k4KQ/1q1Q2N1/qB3P2/Q3n2B/RRr1P1Q1/RBpQ4/4prq1/2r3b1 w - - 0 1 legal: proof: c4 a5 b4 g5 h4 d5 cxd5 b5 hxg5 Be6 a4 Na6 axb5 Bh3 b6 Bf5 b5 Bh3 Na3 Bc8 Nc2 Nb8 e4 f5 Nb4 axb4 Rb1 f4 Ra1 Bf5 exf5 Bg7 Ba3 Bh6 Bc1 Bf8 f3 e5 Ra5 e4 Be2 e3 Bf1 Na6 Ra4 Nc5 Ra1 Ne4 fxe4 Ra4 Rh5 Ra3 Rh1 Ra8 Ke2 Kd7 Kd3 Kc8 Kd4 c5+ Ke5 h5 Ke6 c4 Kf7 h4 d4 c3 g4 b3 f6 f3 g6 b2 d6 b1Q d5 f2 g7 h3 d7+ Kb8 g5 h2 g6 Rh3 d6 Rh7 b7 Qd3 Nh3 Qc2 Ra3 Rh6 Qd3 Qd1 Nf4 Rh5 Ne6 Ra6 Be2 Qc8 d8Q f1Q d7 Rh3 Qa5 Qf5 d8Q Ka7 b8R Qa4 Bh5 e2 Q8d7+ Qc7 Be3+ Bc5 Rha1 Ne7 g8Q h1R g7 Qb7 Qgc8 Qf1 g8B Ng6 Ng7 R3h2 Bf2 Qc2 Ra4 Bd4 R1a3 Ne5+ Kf8 Rg2 Bb3 Qa2 Kg8 Rhg1 Be3 Rf2 Qg4 Qg2 Qcd7 Qc7 Rb6 Rc1 Rb7+ Ka8 b6 Qa1 Ra7+ Kb8 b7 Rc6 Rb4 Rc4 Ra6 Ba7 Bb6 Rd4 Qab5 Rc4 R6a4 Qc6 Qa5 Qb1 Qc2 Qb5 Qcd3 Qa6 Bc5 Rg1 Ne6 Qf3 Rb5 Qf1 Qh7 Qb1 Bd1 Rfg2 Qhg7 Qb4 Bb3 Rc1 Be3 Qe7 Rbb4 Bd4 Qh8 Ka7 Ng7 Qd7 Bg5 Bg1 Be3+ Kb8 Bc5 Rf2 Bb6 Qg2 Bd4 Qb6 Bc5 Kc7 b8Q+ Kc6 Qba8+ Kc7 Qc6+ Kb8 Qcb5 Qa7 Qbd7 Qbb7 Bb6 Qaa6
5R1R/BQ2r3/1Q1QR3/p1rB2P1/2R1b2N/3p1PpB/1n1r2qk/K2R3q w - - 0 1 legal: proof: d4 b5 h4 f5 e4 g5 exf5 c5 dxc5 g4 a4 Nc6 axb5 Ne5 Nc3 Bh6 Nd5 Bg5 hxg5 Nf3+ gxf3 e6 f4 exd5 Qf3 d4 Qd3 Ke7 Qd1 Ke8 Kd2 Kf7 b4 h5 c4 a5 Kc2 d5 Kb2 d3 c6 g3 f6 Ke6 c5 Kf5 b6 d2 b5 d4 f7 h4 f8R+ Qf6 c7 h3 c6 h2 b7 Rh6 b8Q Ne7 b6 Rh7 b7 Rh8 Bc4 Ra7 Bd5 Bd7 c8R Qf7 c7 Qf6 Rfe8 Ba4 Nf3 Kg4 f5 Kh3 Nh4 Bb3 f3 Qb6 f6 Ng6 f7 Ne5 f8R Bc2+ Ka2 Bf5 Re6 Nc4 Qb3 d1R Be3 Qc6 Qb6 d3 Rb1 Be4 Ka1 Rd2 Rbd1 Nb2 Qa8 Qd6 b8Q Qc6 Qab7 Qc2 Bd4 Rh7 Qd6 Ra6 Ba7 Rc6 Qb6 Rc5 Q8b7 Bf5 Ra8 Re7 c8B Bh7 Rc1 Bg6 Rhd1 h1Q Bd7 Be4 Rab8 Qb3 Rc4 Qc2 Rh8 Kh2 Rbf8 Rc6 Re5 Rc5 Bh3 Qc3 Re6 Qd4 Nf5 Qf2 Nh4 Qfg2
N1qR2Nr/3n2N1/rP2Nn1p/1k3p1Q/2pQ4/1prP2BK/Q6N/4R2R w - - 0 1 legal: proof: f4 b5 h4 d5 c4 e5 cxd5 g5 fxe5 Nh6 hxg5 Bg7 a4 Bf8 a5 Ng8 e3 Bc5 b3 Bb6 axb6 Bd7 Ra2 a6 Ra1 b4 Bc4 Ba4 Bb5+ axb5 bxa4 Qc8 Ne2 Qd7 Ng1 Qd8 Kf2 Kd7 Kg3 c5 e6+ Kd6 e7 f5 e8Q b3 g6 h6 a5 b4 g7 b2 a6 Qg5+ Kh3 Nc6 g4 Rb8 a7 Ra8 e4 Rb8 a8N Na5 Nf3 Ne7 g8N Rb7 Nh2 Rc7 Nc3 b1R Nb5+ Ke5 d6 Rd7 Nbc7 Kd4 e5 Kc4 e6 Rb2 Qh5 Nec6 e7 Nb8 e8N Qf6 g5 Nb3 g6 Rc2 g7 Qd8 Ne6 Ra7 d7 Qc8 d8R Ra6 d3+ Kb5 Qg1 Rc4 Bf4 Rc3 Re1 Nd7 Qd4 Nd2 Bg3 Ne4 Ne7 Ra5 g8Q Nef6 N8g7 Ra7 Qgf7 Ra6 Ng8 b3 Qe7 c4 Qa3 Nb8 Qa2 Nbd7
1qQq4/2N1bb1N/Q7/PN3RPR/1pqnQ1pp/3K1N1p/k1N2B2/1R6 w - - 0 1 illegal: Other
2q2nr1/1nQ1B3/2QbP3/1B1R1Q1q/PRqBK2N/Q2RQ3/1brr3n/7k w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 c4 d5 cxd5 f4 b4 h6 bxa5 Ba3 Nc3 Bf5 gxf5 Bf8 Ne4 h5 Nf2 Bd6 Ng4 hxg4 Kf2 Bc5+ Ke1 Bf8 Kf2 Kf7 d4 g5 e4 c5 h4 b5 a4 b4 a6 c4 e6+ Kf6 e7 g3+ Kf3 g2 e8Q b3 h5 c3 d6 c2 a7 b2 h6 b1R h7 Nd7 d5 Qc8 Qh5 Ke5 f6 Nh6 f7 Rg8 Bb5 Rb2 Qd3 Nf5 h8B+ Bg7 Be3 c1Q f8Q Rd2 Rh4 Q1c4 Rd1 Bf6 Qfh6 Nf8 d7 Nd6 d8R Nb7 d6 Rb8 a8Q Bg7 Nh3 g1B d7 Bh2 Ng1 Bf6 Qa3 Rc2 Kg4 f3 Rd3 f2 Kf3 f1N Bc5 Bg3 Be7 Nh2+ Ke3 Bg7 Q5g6 g4 Qaa6 Ra8 Qac6 Ra7 Ne2 Bf6 Nf4 Ra6 Ng2 Rb6 Ba6 Rbb2 Bb5 Rd2 Qgh7 Rbc2 Qf7 Be1 Qfg6 g3 Rg4 Bg7 Nh4 g2 Qf7 g1Q+ Qf2 Nf1+ Kf3 Qh2 Qhe3 Re2 Rf4 Bb4 Rg4 Bd6 Rd5+ Ke6 e5 Red2 Rgd4 Qh3+ Ke4 Nh2 Qff3 Qg4+ Qff4 Qh5 Qff3 Qc7 Rb8 Bf6 d8Q Qc8 Qf5+ Kf7 Qfd7 Na5 Q8c7 Bg7 Rb6 Nb7 Ba6 Bf6 Rb4 Bg7 Nf3 Kg6 Bb5 Bf6 Qec3 Kh6 Nh4 Kg5 Qd3 Qhe8 Q7h3 Qh5 Qhf1 Kg4 e6 Bg7 Qe3 Bf6 Nf3 Kg3 Nh4+ Nf3 Bg7 Kh2 Qff2+ Kh1 Bh8 Ne1 Qf5 Nf3 Bg7 Nh2 Bh8 Qb3 Rd3 Bb2 Bd4 Qc4
3K4/1b1RN2n/4Pqrq/2Rb3P/7N/k2NQQqN/7q/r1nbQBRN w - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 h5 axb5 h4 d6 h3 gxh3 Bf5 h4 Bh3 h5 Bc8 f4 Be7 e4 Bf5 d5 Bh7 Be3 Nc6 Bd4 exd4 e5 Bg5 Qc2 Bf5 Qd1 Bc8 e6 Nb8 Kd2 Bf6 Ke1 Be5 fxe5 Rh7 Qf3 Rh6 Qd1 Rh8 Ke2 c5 Kd3 a5 Kc4 g5 h4 f5 b4 d3 d7+ Ke7 h6 f4 b6 f3 Kb5 f2 b7 d2 h5 a4 h7 c4 d6+ Kf8 e7+ Kf7 Qf3+ Ke6 Nh3 d1B Rg1 a3 Nc3 a2 Ne4 Kd5 e8Q c3 Rc1 Na6 b8Q a1Q Qb6 c2 Qbe3 Qc7 d8R g4 d7 g3 Qe7 Qcc3 Kb6 g2 b5 Nc5 Kc7 Bb7 b6 Nf6 e6 Re8 h8N Nh7 Qh4 Rg8 Ng6 Qb3 Qhg3 Nd3 Nh4 Kc4 Qe5 Kb4 Ng3 Qba3 Nh1 Rg6 Qa5+ Kb3 Qae1 Bd5 b7 Qf6 b8N Qab2 Qh6 Ra1 Nc6 Ka3 Nb4 Qbe5+ Kc8 Qh2 Qhe3 Qg3 Rh8 Qh2 d8N Qg3 Ndc6 Qh2 Be2 f1B Ne7 Qg3 Rd8 Qh2 Rb1 c1Q+ Kd7 Qd2 Rc1 Qg3 Rc5 Qh2 Qe5 Qh6 Kc8 Qg3 Rd7 Bb7+ Kd8 Bd5 Qff5 Nc1 Nd3 Qh2 Qe3 Bb7 Bg4 Bfe2 Qff4 Bef3 Bf5 Bfc6 Qff3 Bd5 Be4 B5b3 Bc6 Bd5 Bb5 Qg3 Rf1 g1Q Ba6 Q1h2 Rg1 Be2 Nb2+ Nb3 Bc4 Bd1 Bf1 Qgg2 Nd3 Nc1 Ng5 Qhg3 Nh3 Q2h2
4N3/kn2PnQb/r5N1/BR4b1/5rb1/K1P1qQQB/1BQb2Q1/1Nb1b3 w - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 fxe5 f5 axb5 h5 d4 f4 dxc5 f3 gxf3 Bd6 f4 Bf8 f5 Nf6 Ra3 Ng8 Rg3 Bb7 Rg2 Bc8 Rg4 hxg4 Kd2 g5 Kc3 a5 Kb3 d5 e4 Kd7 h4 Kc7 b6+ Kb7 c3 a4+ Ka3 d4 h5 g3 h6 d3 h7 g4 e6 d2 e5 g2 f6 g3 e7 Qd7 e8N Qf5 b5 Qe6 f7 Nh6 Qc2 d1B Rh5 Ra6 Ne2 g1B Nf4 g2 Ng6 Be3 Bb2 g1B Bh3 Be7 f8Q Bgf2 Qf3+ Nc6 Qg2 Rf8 h8Q B3g5 Qg7 Bd2 Qf3 Kb8 b7 Bfe1 Rg5 Ka7 b8B+ Kb7 b6 Rf4 Rh5 Nf7 Bc7 Bg5 Qg2 Ka8 b7+ Ka7 Ba5 Ncd8 c6 Bg4 c7 Qb6 e6 Qe3 e7 Bcf5 c8Q Be4 Ka2 a3 Qc6 Bd3 Kb3 a2 Qcf3 a1B Ka2 Bh6 Rb5 Bg5 Ba3 Bb2 Kb3 Bbc1 Bb2 Rd6 Ka3 Bdf5 Nh8 Bh7 b8Q+ Ka6 Ng6 Nb7 Qc7 Rb6 Qce5 Ka7 Qd6 Ra6 Qde5 Rd4 Qeg3 Rf4
1n2b3/2Qb2P1/r1QnRb2/4Q2B/1NR2bRK/3B3P/BBBk1n2/q3n2r w - - 0 1 illegal: No possible last move, all moves rejected
2Rb2k1/r1r5/2P3B1/2Q2bpn/1K2nQ1B/1N1rqR2/P1Q3RB/1Rb3Rq w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 d4 Na6 dxc5 Nb8 f3 Bh6 f4 Bf8 fxg5 h6 g4 Nf6 g6 Ng8 g7 Qb6 Kf2 Qc7 Ke1 Qd8 g5 Qc7 g6 Nf6 Nd2 Ng8 Ne4 Qd8 Ng5 hxg5 Kd2 e5 Kc3 b5 h4 d5 a6 d4+ Kb4 e4 c4 e3 h5 d3 h6 d2 a7 e2 f6 e1B f7+ Ke7 c6 Qe8 h7 Nd7 c5 Ndf6 c7 Bg3 c6 Be6 c8R Bb8 Qc2 d1Q Bf4 Qh5 Ne2 Bh3 Nc1 Bf5 Rg1 Be6 Bh2 Qd1 Bd3 Ne4 Rb1 Bc7 Nb3 Ngf6 g8R Bd8 g7 Bf5 Rg2 Qh1 Rbg1 Nh5 Bg3 Bd7 Bh4 Bf5 Qc5+ Ke6 Bb1 Bd6 Rf8 Bf4 g8Q Bc1 Qg7 Rg8 Qb2 Rg7 Qbc2 Kf6 h8R Rh7 Rb8 Kg7 Rb6 Rc8 a8Q Rc7 Qb8 Ra7 Qf4 Qe5 Qd3 Qd4+ Qdc4 Qe3 Qc2 Rc7 Re8 Ra7 f8B+ Kf7 Rb8 Rg7 Rh6 Kg8 Rf6 Rgd7 Rb7 Rd3 Rb6 Bc7 Rc8 Bd8 Bd6 Rc7 Qg4 Ra7 Bh2 Rc7 Ka5 b4 Qf4 Ra7+ Kb5 Rc7 Na1 b3 Kb4 b2 Nb3 Ra7 Qg4 Be6 Rf3 Bf5 Qf4 Rdd7 Q2c3 Rdc7 Bd3 b1R Qc2 Bb2 Rb5 Rd1 Rb7 Bc1 Rbb8 Nef6 Be4 Rd3 Rb5 Bh3 Bg6 Ne4 Nd2 Nhf6 Kc4 Nh7 Rb1 Nhf6 Nb3 Nh5 Kb4 Bf5
4b3/nn1Np1B1/q3k1Pq/n2Rr2q/4KP1b/rQ1N3N/1QN3N1/Q5RR w - - 0 1 legal: proof: c4 b5 g4 h5 e4 f5 exf5 d5 cxd5 g6 a4 Nd7 axb5 Bh6 f4 Bf8 Be2 Nb8 fxg6 Ba6 g5 Bc8 Bg4 hxg4 Kf2 Kd7 Ke3 a5 h4 c5 b4 c4 d4 g3 g7 a4 b6 c3 b5 a3 b7 g2 d6 a2 h5 c2 b6 Nc6 b8N+ Ke6 b7 Nh6 g8Q+ Kf5 d5 Na7 d7 Nc6 d6 Na5 Qb3 Ra7 Nh3 g1N Bb2 Qc7 d8N Ne2 d7 Qc6 Na3 Nd4 Nf7 Nb5 d8R Bd7 Ne5 Nf7 h6 Nfd6 h7 Bh6 Nd3 Be8 Nd7 Bg7 b8Q Bf6 Rb1 a1Q Qb7 Rg8 h8N Qc5+ Kf3 c1Q Nc2 Qa2 Qb8 Ndb7 Ng6 Ra6 Qg1 Na7 Qd4 Qd2 Rbg1 Qh2 Ke3 Qd5 Nh4+ Ke6 Ng2 Rh8 g6 Rh5 Qda4 Bh4 Bg7 Rf5 Qb2 Qf3+ Kd4 Re5 Qa1 Qh5 Qb3+ Nc4 Qbb2 Ra3 Qb3 Rc5 Qbb2 Nca5 Ke4 Rb5 Nb6 Rf5 Rd5 Qh6 Nd7 Re5+ Kf3 Qc4 Qb3 Qa6 Qbb2 Rh5 Ke4 Re5+ Kd4 Bf6 Nhf2 Nc5 Q8b3 Q2h5 Nh3 Bh4 Nde1 Ncb7 Nd3 Rf5 Ke4 Re5+
4Qbr1/2n1q3/QB1N4/2PPp3/1nb3B1/Bnb5/1KQ4R/B1brBkNN w - - 0 1 illegal: No possible last move
N1Q4b/r1Np3k/R1B5/1rPQ1nQ1/3qnB1P/b6Q/3brB2/b2K2NQ w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 b4 Rh6 f5 Nc6 g5 Nb8 Ra3 Rh8 Rg3 Bb7 Rg2 Bd5 Rg4 hxg4 g6 Bf7 Bh3 Qc8 gxf7+ Kd8 Bg2 Kc7 Bf1 Qd8 c4 a5 h4 g5 b6+ Kc6 b7 e5 Nc3 g3 Nb5 e4 Bg2 g4 Nc7 a4 Bf4 Na6 b8B a3 Ba7 a2 Rh3 Bh6 f8Q a1B f7 Ne7 f6 Nf5 Qe7 Qc8 Bb6 Ra7 f8N Qb7 Nfe6 Rb8 Bh1 g2 f7 g3 f8Q e3 Na8 e2 Qg8 Qc8 Qgf7 Qh8 Qg5 Qd4 Nec7 Bg7 Qd3 Bh8 Kd2 e1B+ Kd1 Bd2 b5+ Kb7 c6+ Kc8 Qe3 Nc5 Qd5 Ne4 Bc5 Rbb7 b6 Rb8 Qh5 Kd8 b7 Qg7 Bb6 Ke7 Qg5+ Kf8 Qe1 Qc3 Bf2 Qd4 Qf1 Re8 Qe1 Re6 b8Q+ Re8 Qb2 Rb8 Qc3 Rb5 Qh5 Kg7 Qg5+ Kh7 c5 Bb2 Rh2 Bbc1 Qf3 Ba3 Qfg4 Qb2 Qh3 Qd4 Ne2 g1R Bf3 Rg2 Qh1 Rb8 Ng1 Rb4 Nb5 Rb2 c7 Rb3 c8Q Rb4 B2e3 Re2 Nbc7 g2 Bf2 Rb5 Qd6 Nf6 Bc6 Ne4 Qd5 Rab7 Nf3 g1B Rg2 Bh2 Ng1 Ra7 Rg3 Ra4 Rb3 Ra7 Rb4 Bg3 Ra4 Bh2 Ra6 Bg3 B4e3 Bge5 Bf4 Qc4 Qgg2 Ba1 Qg5 Qd4
k1N2N2/2n2Rr1/1Q1R1q1N/3bNbPB/1K1Nnqq1/3P4/pr3RQ1/4qQ2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 h4 Nc6 g4 Kd7 b3 Ke8 f5 Qd6 Bb2 Qc5 Be5 Qa3 Bf4 gxf4 g5 Bh6 g6 Nb8 Nh3 Qd6 Ng1 Bg5 hxg5 Qd8 b6 Kd7 b4 e5 g7 a5 b7 c5 f7 Kc7 f8Q h5 d6+ Kb6 f6 Ka7 f7 e4 b5 a4 d7 f3 d3 f2+ Kd2 c4 Kc3 a3 Rh2 h4 Kb4 e3 Nc3 a2 Nge2 h3 Nd4 e2 Qd2 e1Q Ne4 c3 Be2 f1Q Bh5 c2 Nd6 c1Q Rf2 Qf6 d8R h2 Rb1 h1B b6+ Ka6 Rb3 Bf5 Nc8 Bd5 Rd6 Ra7 Rc3 Qed1 Rc7 Qg4 Qb2 Qcf4 Rcd7 Ne7 g8N Qe1+ Qd2 Rh7 Nh6 Rh8 Rc7 Nd7 b8Q Nc5 Rb7 Rh7 Rbd7 Rc7 b7+ Rc6 Qc7 Rg7 Qcd8 Ng8 Qc7 Ne6 Qcd8 Nc7 b8N+ Kb7 Re7 Qfe6 Nd7 Nf6 Ne5 Ka8 Red7 Ne4 Re7 Ne8 Qb6 Rc3 Qe2 Nc7 Qf1 Qg6 Qh8 Qe6 f8N Qf6 Rf7 Rc2+ Ka4 Rd2 Kb4 Bd7 Qh7 Ng3 Qe4 Bf5 Qf3 Ne4 Q3g2 Rb2+
R1nqb2Q/4r3/Q1P2R1P/3Q4/r2rN2R/1p1RB2B/3rqR2/1Bkb1K1n w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 f5 dxc5 h6 g4 f4 g5 f3 Nd2 e6 Ne4 Qf6 exf3 Ne7 f4 Ng8 f3 Qd8 f5 Be7 f4 Bf6 gxf6 h5 Nf2 Qe7 Ng4 hxg4 Bc4 Qf8 Bb5 Qe7 Bf1 Qd8 h4 Kf7 a4 b5 c4 g5 a6 d5 h5 e5 a7 g3 h6 d4 a5 g4 c6 e4 c5 e3 c7 b4 c6 e2 a6 g2 Bb2 g3 Qd2 d3 Nf3 Rh7 Bc1 g1R Rh4 g2 Ra3 Bd7 c8B Be8 Rc3 b3 Ng5+ Kf8 f7 Ke7 f8R Kd6 f6 Kd5 f7 Kd4 Kf2 Nf6 Bh3 Nh5 Ne4 Nd7 f5 Ng3 f6 Nb6 Qd1 Nc8 Be3+ Kd5 Ke1 d2+ Kf2 e1R Bd3 Rh1 Bb1 Rh2 Rg8 Reh1 f8Q Re7 f7 Re1 Rg6 g1Q+ Kf3 Nh1 Qh8 Rhe2 f8R Qh2 Rff4 Rg1 Rgf6 Ke5 Qf1 Reg2 Qc4 Re2 Qf7 Rc1 Qfg8 d1B Rd3 Rc4 Qf7 Rb8 a8Q Rbb4 a7 Ra4 Qb7 Rcb4 a8R Rc4 Kg4 Rd2+ Rf3 Qe2 Qa6 Nf2+ Kg3 Rcb4 Kg2 Nh1+ Rf2 Rc4 Ng5 Rcb4 Rc3 Rbd4 Qh5 Kd5 Rd3 Kc5 Qf3 Kb4 Qd5 Ka3 Ne4 Kb2 Kg1 Kc1 Kg2 Qg4+ Kf1 Qe2+
kq2b1K1/2Q1rRQ1/rr1NNR2/5pPr/2r5/RQBP4/Q5nN/b4Qq1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 g4 Bb4 h4 Kd7 hxg5 Ba3 f4 Bc5 g6 Nc6 g5 Bf8 Bh3 Ke8 Bf5 Ne5 fxe5 exf5 Kf2 Kd7 Kg3 c5 Kf4 Kc7 e4 Kb8 b4 h5 g7 a5 e6 c4 Ke5 h4 d3 a4 d6 c3 e7 a3 e8Q h3 b6 h2 b7 c2 b5 a2 d7 f6+ Ke6 f4 Kf7 f3 e5 f2 e6 f1R e7 f5 Bb2 c1R Nd2 Rc2 Nc4 Rh7 Nf3 Rff2 Qf1 Qa5 d8N Qe1 Bc3 Rh6 Nd6 Nf6 g8Q Ra6 Qg7 Qe5 Ne6 Ng4 Kg8 Ne3 Qef7 Rfe2 e8R Ng2 Re7 Rh5 Rc7 Bd7 Rc6 Be8 Rc7 Rc6 Re7 Ka7 b6+ Ka6 b8Q Qf4 b7 Rb6 Qh8 Bg7 Qc7 Ka7 Rd7 Bf6 Qfg7 Be5 Rf7 Re4 Rf6 Rc4 Qgf7 Re2 Qhg7 Ree4 Rc1 a1R b8Q+ Ka6 Rg1 h1Q Nh2 Ra5 Ra1 Bd4 Ra3 Qg3 Bb4 Ba1 Bc3 Re3 Ng4 Qhh2 Rh1 Qg1 Nh2 Raa4 Nf4 Re7 Ne6 Rbc6 Qb3 Rb6 Qc5 Ka7 Qcf2 Ra6 Qfa2 Reb7 Qc7 Ka8 Qce7 Rca4 Rf7 Ne3 Nc8 Qe5 Nf3 Qb8 Nd6 Rh7 Rh6 Ng2 Nh2 Rc4 Rhf6 Rh5 Qd8 Rd7 Qc7 Re7
2Qn4/QqQ1P2r/bbB2K2/2Nb1bp1/3NqNP1/2r4N/RR2r3/R2Nk3 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 e5 a4 b5 f4 d5 fxe5 Nf6 cxd5 Nc6 h5 Ne7 Ba3 Ng6 hxg6 Ne4 axb5 Nf6 b6 Ng8 b5 Bd6 Bc5 Bf8 Bb4 axb4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 h4 e4 b3 d4 f6 g4 b2 e6+ Kd6 e5+ Ke7 b7 c4 b8Q c3 g7 h3 d6+ Ke8 d7+ Ke7 b6 c2 d5 c1R b7 h2 Qc7 Rb8 Bg2 Rh7 Qa4 Rc5 Nc3 Qe8 Nd1 Rc3 Nh3 b1Q+ Be4 Ra8 b8R Qb7 d8N+ Bd7 Rg1 h1B Rg2 Ra7 Qd4 Ra2 Qa7 Re2 Ra8 Re1 Rb2 Re2 Qd4 Bf3 R8a2 Bg2 Qa7 Bh1 Nf7 Nh6+ Kg6 f5 g8Q Qea8 Nd6 f4 Nb5 f3 Nd4 f2 Bf3 Bg7 Qgc8 Nf7 Bg2 Nd8 d6+ Ke8 e7 f1B Bc6 Bd5 Ne6 Bf6 Kf5 Kf7 e8N Bg7 Nf6 Bf8 Ne4 Be7 Q8b8 Bc8 d7 Bc5 Nd4 Bb6 e6+ Kg7 Ke5 Kg6 Kd6 Kg7 Nc5 Kf6 Qa3 Qa4 e7 Qc2 Qba7 Qe4 Q3a4 Rd2 Qb3 Ba6 Qc2 Re2 Qc1 Ne6 d8N Bd7 Nf7 Nd8 Nh8 Bf5 Ng6 Ne6 Kd7 Nd8+ Ke8 Rf3 Qc8 Rc3 Ngf4 Ke5 Qc2 Qd3 Ba4 Ra3 Ncb3 Ke4 Q2c7 Qc2 Bc6 Qb1 Nc2 Kf3 Nc5 Rc3 Nd4+ Kg3 Nh5+ Kg2 N5f4+ Kf1 Kf8 Qe4 Ke8 Ke1 Kf8 Rh5 Kg7 Rh8 Kf6 Rh7
2rN2k1/1n2p1P1/Q1QqPQ2/5qR1/NbrB1N2/2Rr4/Q1RQn1r1/3K3q w - - 0 1 legal: proof: c4 b5 f4 g5 fxg5 d5 cxd5 a6 a4 Bb7 axb5 Bc6 b4 Bb7 b6 Bc8 b7 Bf5 Ba3 Bh3 Bc1 Bc8 g4 Nf6 g6 Bf5 b5 Rg8 b6 Bd3 Bh3 Rh8 g5 Bb5 Be6 Bd7 h3 Bc8 Bf5 Be6 Bd3 Bg4 hxg4 Ng8 Bb5+ axb5 d4 f5 e4 c5 d6 h5 e5 b4 d5 b3 g7 Kf7 g6+ Ke8 g5 c4 Ne2 b2 Qd3 c3 Ra3 h4 Qa6 f4 Kd1 f3 Rh2 h3 Nf4 f2 Be3 Qd7 Bd4 Nh6 g8R Nf7 g7 Nc6 b8Q+ Nfd8 b7 Kf7 Qc7 Rc8 b8Q Nb7 Rb3 Qe6 d7 Qd6 d8Q Rh6 Rg2 h2 Qba7 Rh3 Qa7b6 Qh6 d6 h1Q+ Rg1 Rf3 d7 Qd6 Rh8 Rg3 Rh2 Kg8 Ra3 Rg2 Rb3 Nb4 Qcc6 Na2 Ra3 Nc1 Rb3 Qa3 Qf6 Qb4 Qbc6 Qd6 Qda5 Ne2 d8N Qd7 e6 Qd6 Qa2 f1R+ Kc2 Rf3 Kd1 Rgg3 Rf2 Rg2 Ra3 Nc1 Rc2 Rd3+ Nd2 Rf3 Nb3 b1Q Nc5 Qb5 Na4 Qf5 Qe2 Rd3+ Qd2 Ne2 Qa6 Kh7 g6+ Kh6 g8Q Bg7 Rc1 Rc4 Qe8 c2+ Ke1 Rc8 Rc3 Bh8 Qec6 Bg7 Rd1 c1R Rc2 Bh8 Rc3 Rc2 Rc1 Bg7 Kd1 Bh8 Ra3 Rc4 Rc2 Bg7 Rac3 Bh8 Qf7 Bf6 g7 Kh7 Qf8 Bh4 Qf6 Bf2 Be5 Bc5 Bd4 Bb4 Re1 Ng1 Re5 Kg8 Rd5 Qg6 Rh5 Qf5 Rg5 Ne2+
R1B1r1Q1/2r2Qnq/3Rp1n1/1RP1P2B/2N1qQKR/r6q/1qn5/k3B2R w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 e6 axb5 Ke7 f4 Kf6 f5 Ke5 f6 Be7 fxe7 Kf6 Bh6 Bb7 Bc1 Bf3 Nd2 h5 Ne4+ Kg6 Nf2 f5 Ng4 Kf7 g3 f4 Nf2 Be4 g4 Bf5 gxf5 Ke8 Ng4 hxg4 Qd2 Kf7 Qd6 Rh7 Qd1 Rh8 Kf2 Kf6 e8R Ke5 b4 g5 e4 d5 c4 a5 h4 f3 Kg3 f2 h5 a4 f6 d4 b6 d3 b5 Kd4 f7 Kc3 f8Q d2 c6 a3 e5 a2 h6 Nf6 c5 Nbd7 h7 Qe7 c7 Ra3 c8B Nh5+ Kh2 g3+ Kh3 g2 b7 Ng7 Qf4 Nf8 b8Q Ng6 Nf3 g1Q b6 Qh2+ Kg4 Qa7 Be2 f1Q Re7 Re8 h8R Qh7 b7 Qb6 Rf7 Qb2 Rd7 Qe1 Rb1 a1N Rd6 Nc2 Qa8 Kb3 b8R+ Ka2 Qa7 Qf1 Qaf7 Qe1 Ra8 Qf1 Qe1 d1Q Qeb4 Qdd4 Nd2 Qe4 Bf3 Qfd3 Nc4 Qdb3 Qb8 Q3c3 Kg3 g4 Bd2 Qcd3 Be1 Qdc3 Kg2 g3 Rh4 Qcb3 Kh3 g2 Kg4 g1R+ Kh3 Rf1 Kg4 Qc1 Rb2+ Ka1 Be2 Qc3 Rb5 Q1b2 Rh1 Qg8 R8h4 Qh7 Kg5 Rf2 Bh5 Rh2 Kg4 Rd2 Rdb6 Rd7 Rd6 Qcb3 Qb7 Rc7 Qg8 Rc6 Qe7 Rc7 Qef7 Qh3+
1b5N/4B1b1/1p2p1QQ/2P4B/3r2P1/2R1BQbR/k2bK1nR/qn2R1Rr w - - 0 1 illegal: No proof kernel
2Qb4/4pBb1/Pq3Rn1/NP2QQ2/p1Q2BNn/k2r1bB1/5Q2/q2nK1N1 w - - 0 1 illegal: No proof kernel
3rb2n/3N2bP/1Q1pBnrn/rP3K2/1R2R1Bk/2bRp3/1Q4B1/2B2QB1 w - - 0 1 legal: proof: d4 c5 dxc5 b5 f4 f5 a4 h6 axb5 Nf6 g4 Rg8 gxf5 Rh8 e4 Rh7 e5 Nc6 Nc3 Qb6 Ne4 Rh8 Ng5 Ng8 f6 hxg5 f5 g4 f7+ Kd8 Rb1 Nb8 Ra1 Qf6 exf6 Bb7 Qd5 Ba6 Qd1 Bc8 Kf2 a5 Kg3 g5 h4 e5 b4 e4 c4 a4 c6 a3 b6 a2 c5 Na6 b5 Rh5 b7 Ne7 b8Q Nd5 Rb1 a1B Bg2 Be7 f8B Ne3 f7 Rh8 h5 Bef6 h6 Bfc3 h7 Nc7 f6 Ra5 Qe2 Ne8 Rh3 d6 c7+ Kd7 c6+ Ke6 Rb4 Kf5 Bh6 Bd7 f8Q Rg8 f7 Nf6 Bg7 Be8 c8B+ Kg6 c7 Nf5+ Kh2 Rh8 Be6 Nh6 Rd3 Kh5 c8B Kh4 Qb2 Rg8 Qb6 g3+ Kh1 g4 Nf3+ Kh5 Ne5 Kh4 Nd7 Rh8 Bh3 g2+ Kh2 g1N Bg2 Rg8 Bh8 Nh3 Bg7 Nf4 Bh8 N6h5 Bd4 Ng6 Bg1 e3 Re4 Nf6 Rb4 Kh5 Kg3 Nh8 Kf4 g3 Re4 Nhg4 Kf5 Kh4 Qe7 Rg6 f8R Rg8 Rf7 Rg6 Qf8 Rg8 Bf1 g2 Re7 Rg6 Rb4 Rg8 Bh2 g1R Bg2 Rh1 Bg1 Rh3 Kf4 Nh6 Bg4 Rg3 Ree4 Bh5 Qf7 Rd8 Qc4 Be8 Be6 Rg6 Bg4 Nhg8 Kf5 Nh5 Qcb3 Bg7 Qd1 Nhf6 Qf1 Ra2 Qc2 Bc3 Qb2 Ra5 Nc5 Bc6 Be6 Be8 Nd7 Nh6+
1B6/q1Rn1k2/nR3B1b/1BPp3P/KN1p1r2/Q1B1QBrr/4q3/3r1RQ1 w - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 f5 exf5 b4 d4 c6 d5 b3 Nc3 Bb7 axb3 Qa5 b4 Qd8 b5 c5 Nce2 Bc6 Nd4 cxd4 dxc6 Qa5+ Qd2 Qb6 Qd1 Qd8 h6 e5 Kd2 g5 f4 d5 h4 a5 c4 g4 Kc2 g3 Kb3 g2 h7 e4 f6 e3 f7+ Ke7 b6 e2 c7 e1Q c8B Na6 f5 Bg7 f6+ Kd6 f8Q+ Qee7 f7 Nb8 b7 Nd7 b8R Ke6 h5 Qh4 Qe8+ Qde7 f8Q Qe1 Ne2 g1R Nf4+ Ke5 Nd3+ Ke6 Bd2 Bh6 Rc1 Qe5 Bg2 Qc7 Ba6 Ngf6 Rb7 Rg8 h8B Ne4 Bf6 Rf1 Qg4+ Rf5 Rhf1 Bf4 Bh1 Be3 Qg1 Bh6 Rb1 Rd8 Bc3 Rg2 Ra7 Rh2 Bf3 Nec5+ Ka3 a4 b4 Rh1 b5 Rh3 b6 Rf4 b7 Qb8 Kb4 a3 Ka5 Qa8 b8B a2 Rc7 Qa7 Rb5 a1R+ Kb4 Rd1 Rb6+ Kf5 Bb5 Na6+ Ka4 Qe2 Qa3 Rc8 Qee7 Rg8 c5 Rg5 Qee3 Rgg3 Be5 Kg5 Nb4 Kf5 Bc6 Ke6 Bb5+ Ke7 Bf6+ Kf7
BQBr4/np1P1p1q/Bb2Bk2/2B2b2/NKR1P1r1/3Q2N1/1r2Qq1r/6N1 w - - 0 1 legal: proof: c4 a5 b4 g5 bxa5 e5 f4 d5 fxe5 Bb4 cxd5 Na6 a4 Nb8 Ra2 Bf8 h4 Ne7 g4 Qd7 h5 Ng8 Rb2 Nc6 Rb4 Nce7 Rf4 gxf4 g5 Ng6 hxg6 Qd8 e4 Ke7 d4 h5 Kd2 c5 Kc3 c4 g7 f3 a6 h4 g6 f2 e6 h3 a5 h2 d6+ Kf6 e7 Rh5 e8B Qd7 a7 Qb5 a6 Rh4 d5 Rh3+ Be3 Ke5 d7 Bc5 d8Q Bf8 d6 Bg4 Qe2 Qb6 Nd2 Be7 Bd7 Bf3 Bc5 Bg5 Bc8 Ne7 g8B Kf6 g7 Be3 Bh7 Bg4 g8Q Bf5 Qgf8 Rb8 a8N Rh4 a7 Rg4 Qd7 Nc6 Qg8 Qd8 Nb6 Qe7 a8B Na7 Kb4 c3 Bg6 c2 Na4 c1R Qdb5 Bd4 Qbd3 Rc2 Be6 Rd8 Bh5 Rd7 Qb8 Rd8 Bc8 Qe8 d7 Qh8 Bh3 Ra2 Nf1 Qh7 Ng3 f1Q Qa6+ Be6 Qad3 Qf2 Bf1 Rf4 Bg4 Bf5 Bd6 Bb6 Bc5 Bg6 Be6 Bf5 Nh3 Rc2 Rg1 h1R Rg2 Rh4 Ng1 Rg4 Rh2 Bg6 Rh5 Rh3 Rd5 Bf5 Rd4 Rh6 Rc4 Rb2+ Qb3 Qf3 Qd1 Qe3 Rc2 Rf4 Ba6 Qf3 Rc4 Rhh2 Qd2 Qf2 Qe2 Ra2 Qbd1 Rg4 Qdd3 Rb2+
3qkn2/1r6/NKn2Pp1/6r1/N1N1p3/2q1PQ1n/p1QR1BQ1/b1Q1RQR1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 g4 b5 Bh3 f5 gxf5 Nf6 Bg4 hxg4 b3 Ng8 axb5 a4 b6 a3 Nh3 Bd7 Ng1 Ba4 bxa4 Qd7 Qb3 Qd6 Qd1 Qd8 f4 e5 Kf2 c5 Ke3 c4 h4 g3 d4 g2 f6 g6 d6 c3 b7 c2 f7+ Kd7 a5 a2 a6 Bh6 f8Q Ne7 h5 Nc8 d5 Bg7 f5 Nb6 a7 Rh7 h6 Rh8 h7 Na6 b8N+ Kc8 d7+ Kc7 d6+ Kb7 Qf1 Nc5 Nc3 Rg8 h8Q Nd3 Na4 Ne1 Qh2 Nd3 Na6 Kc6 Nf3 g1N Nd2 Rb8 a8Q+ Rb7 Nc4 Nh3 Rg1 Qc7 d8R Qe7 d7 Rh8 Bb2 Bf6 Bd4 Rh5 Re1 c1Q+ Ke4 Qc3 Bf2 Qe8 e3 Rg5 Qc8+ Rc7 Qhg2 Bg7 Qa3 Nb4 Qc1 N6d5 Qf3 Ndf4 Qc2 Ne6 Q1g2 Bf8 f6 Bc5 Qc1 Nf8 Qf1 Bd4 Q3g2 Kb5 Qf3 Nc6 Kd5 Qb3 Kd6 Ba1 Qa8 Qc3 Q3g2 Nb8 Qaf3 e4 Qc2 Rcc5 Qc1 Nc6 Kc7 Qe7 Rc8 Qe8 d8Q Qe7+ Qd7 Qd8+ Kb7 Rce5 Qdd2 Re7+ Ka8 Rc7 Qdc2 Ne5 Kb8 Kc6 Ka8 Kd7 Rb8 Rc6 Ka7 Ke8 Rb2 Rc7+ Kb6 Nc6 Rb3 Qe5 Rd3 Qc3 Rd2 Rb7+
B1B4k/5B2/1Q2p1bq/1pp4n/q1nRQ2b/P2Pq3/N1Q2rKN/B1NB4 w - - 0 1 legal: proof: b4 d5 e4 f5 exf5 a5 bxa5 g5 f4 d4 f6 d3 a3 Qd5 f5 Qd6 cxd3 Qd7 d4 Qd6 d5 Qd8 h4 b5 g4 Nh6 h5 Rg8 Rh4 Rg6 hxg6 Nd7 Rh2 Nb8 Rf2 Ng8 Rf4 gxf4 g5 Kd7 Ra2 Ke8 Rb2 Nc6 Rb3 Nb8 Rh3 Qd6 Rh5 Qd8 Rh1 Qd6 Ke2 Nd7 Rh4 Kd8 Nh3 Bg7 Bg2 Ba6 Qa4 Nh6 Be4 Rc8 Bf3 Nb8 Qd1 Kd7 Ng1 Rh8 Rh5 Ng8 Ke1 Ke8 Rh1 Bc8 Bg2 Qd8 Bf1 Bf8 Kf2 c5 g7 Kf7 g6+ Ke8 d6 h5 f7+ Kd7 f6 Ke6 d3 f3 d7 h4 a6 h3 a7 h2 a8B Qe8 d8Q Kf5 Bb2 Qd7 Qc2 Rh7 Be2 Qe6 Bd1 Qa6 Qb6 Rh3 Nc3 Rh6 Na2 Nc6 Ne2 Ne5 Nec1 Qa4 Ba1 Nc4 Rg1 h1Q Rg4 Rh7 Rd4 Qh6 Kg1 f2+ Kf1 Qe3 Kg2 Nh6 g8B Ng4 g7 Kg6 Qb3 Rh4 Qc2 Bf5 Bh7+ Kh6 g8B Rh1 Bg6 Rf1 B8h7 Bg7 f8Q e6 f7 Nf6 Qg8 Qa7 f8N Qa4 Bf7 Bg6 Nd7 Nh5 Ne5 Bf6 Nf3 Bh4 Qgb8 Kg7 Q8b7 Kh8 Nh2 Re1 Qe4 Re2 Bhg8 Qh6 Be8 Rd2 Bd7 Re2 Kh3 Rd2 Bc8 f1Q+ Qg2 Rf2 Bf7 Qe1 Qe4 Rf4 Kg2 Qe3 Qf5 Rf3 Qe4 Rf2+
5rB1/3rQq1R/2Bp1B2/Q2pP1K1/QP6/q1Q2p2/QnbR2N1/2k2rRn w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 fxe5 c6 g4 Be7 gxh5 Qb6 d4 Bd8 d5 Be7 d6 Bf8 Nc3 Qd8 Nd5 cxd5 c4 Rh6 c5 Rf6 c6 Rh6 c7 Bb7 c8B Rh8 Ra3 Be7 Ra6 Bg5 Ra1 Be3 Ra2 Bb6 Ra1 Bc7 dxc7 Qf6 Nf3 Qg5 Ng1 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 h4 a5 e4 g6 b4 a4 b6 a3 h6 a2 h7 Ra5 h5 Qf8 h6 Qg7 Ne2 Qf7 Rh2 Ne7 Kg5 f4 Qa4 f3 Bb2 Rf8 h8R Na6 h7 Bc6 b7 Nf5 b8Q Ng3 Qbb5 Nc5 Bb7 d6 c8Q+ Bd7 Qa8 Nh1 Bc6 Ra7 Qba5 Nd3 Rc1 a1Q Bh3+ Ke7 e6 Qa3 Bc3 Nb2 Rg1 Bc8 Bd4 Rd7 Nf4 Ba6 Rd2 Bd3 Ng2 Bc2 Kh6 g5 Be5 g4 Kg5 g3 Q8a6 Ke8 e7 Qc3 Bf6 Qa3 Ne1 g2 Be6 Bb3 Qc4 Bd1 Qa2 Bc2 Rf1 g1R+ Ng2 Bb1 Rc1 Rf1 e5 Rf2 Rg1 Bc2 Rg8 Rf1 h8Q Nf2 Qh6 Nh1 Rh8 Qh7 Bg4 Kf7 Bh5+ Ke6 e8Q+ Qe7 Qed8 Qe8 Rh7 Qf7 Qdc7 Qe8 Qg7 Qf7 Kh4 Kf5 Qc8 Ke4 Kg5 Qe8 Bf7 Qe7 Bg8 Qf7 Rf2 Kd3 Re2 Qe8 Qe7 Qf7 Rd2+ Kc3 Rd1 Bb3 Qcc7 Kc2 Rd2+ Kc1 Bb7+ Bc2 Qc3 Nf2 Bc6 Nh1
1Nkn4/bp4nB/b7/5PKq/PBB3QR/BQQ1p3/RB1rn1qp/3R4 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 g4 Bh6 h4 Qd6 h5 Bg7 Nc3 Bf8 Nce2 Qd8 Nf4 gxf4 g5 Nh6 Kf2 Rg8 Ke2 Rg6 hxg6 Ng8 Ke1 Bg7 Ne2 Qd6 Bg2 Na6 Rf1 Bd7 Qc2 Kd8 Qc3 Nh6 Rf3 Rc8 Qc2 Nb8 Qd1 Be6 Qb3 Kd7 Rf2 Rh8 Bf1 Bf8 Ng1 Ng8 Qd1 Ke8 Rh2 Qd8 Rh1 Bc8 Kf2 Kd7 Kf3 h5 d4 e5 a4 c5 d6 h4 Kg4 h3 f7 f3 a6 c4 d5 f2 g7 e4 g6 c3 a7 c2 a8Q e3 Ra2 Qf6 Ne2 Qc3 Kg5 Qb4 Nd4 Qb6 Bb2 c1Q Qa5 Qcc5 Qc3 Nf6 g8B Nh5 g7 Nc6 Bh7 Nd8 g8Q Ng7 Bc4 f1N Qdb3 Ng3 Nc6 Ne2 Rd1 h2 Rd4 Qca5 Rh4 Qd4 Ba3 Qd1 Bb4 Ne8 Qg6 Bg7 f8B Bd4 Qg8 Ng7 Nb8+ Ke8 Ba3 Be6 Bb2 Ba7 Ba3 Nc6 d7+ Kd8 Bfb4+ Kc7 d8B+ Kc8 d6 Qad5 Be7+ Nd8 Bb2 Bd7 Bf8 Bb5 B4a3 Ba6 d7+ Kc7 Bfb4 Qc6 Qf7 Qch1 Qh5 Qg2+ Qg4 Re8 Rh6 Re4 Rh4 Rd4 Bhg8 Rd2 Bh7 Qdf1 Be7 Qff3 Beb4 Nc6 d8R Qfh3 Rd4 Kc8 Rf4 Nd8 Rf1 Qhg3 Rc1 Qe5 Rca1 Qe8 Rd1 Qh5+
k4B2/Pp2nrbN/5Nq1/2Pq3R/KQ1pB1br/q1p1B2B/6Q1/2N2QB1 w - - 0 1 illegal: No proof kernel
r1R2BK1/Nrbq1QPb/3NN1p1/1QP2pQB/p7/1N2b2b/Nn1B3k/8 w - - 0 1 illegal: No possible last move
R1rr2Qn/4R1nP/2k5/b1P4R/K1ppN3/2p1N1Rn/4R1pQ/1B2QqN1 w - - 0 1 illegal: No proof kernel
2Qb4/PN1r3Q/1Np1Bq1Q/B3QpPQ/pBrp4/2q5/nK1kn3/4NR2 w - - 0 1 illegal: No possible last move, all moves rejected
2r1Q1Nk/bNN5/R2q4/4np2/KNpp3p/1n1P2n1/n1R2P1N/Q2BQ1R1 w - - 1 2 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 g4 f5 b3 Qh4 Bb2 Qd8 Bd4 exd4 g5 Ba6 Nc3 Bb7 Nb1 Bc8 h3 a5 Ra3 Bd7 Rh2 Ra6 Ra1 Rf6 gxf6 g5 Rg2 g4 Rh2 g3 Rh1 Be6 Qc2 Bf7 Qc1 Bh5 Qd1 Bg4 hxg4 Qd6 Nc3 Qe7 Nb1 Qd8 e4 Kf7 b4 h5 b6 c5 e5 g2 b5 h4 g5 a4 e6+ Kg6 f7 Kg7 b7 a3 g6 a2 b6 Nh6 d6 Ng8 d3 Qf6 Kd2 Na6 Kc2 Nb8 Kb3 c4+ Ka4 Qg5 d7 Na6 b8R Qd2 d8N Rh5 e7 Qf4 e8N+ Kh8 b7 Rh6 g7+ Kh7 Qe1 Qh2 Nc7 Rb6 Nc3 Qg3 Nf3 g1N Nh2 Rb1 N3d5 Nb4 Be2 Qd6 Bd1 Nf3 Rg1 Nf6 g8N Kh8 Ra8 Rb2 b8Q Ne5 Nb7 Nh5 Qe8 Ng3 Rc1 a1N Ra6 Nb3 Rc2 Na2 Nb4 Be7 f8Q Bd8 Ncd5 Bb6 Nc7 Bc5 Qfe7 Ba7 Qg5 Rb1 Qc1 Rb2 Rc3 Re2 Qa1 Re4 Rc2 Rg4 Qd7 Rg6 Qb5 Rf6 Qd7 Rf8 Qf7 Rd8 Qe8 Rc8
6q1/k3pQ2/1p2N3/1PN1NRnq/1nK1qppR/4r2P/rBN5/3QNQ1R w - - 0 1 legal: proof: g4 h5 gxh5 d5 b4 d4 e3 a6 Bc4 a5 Bb3 d3 cxd3 a4 d4 axb3 d5 Ra6 d6 Ra8 f4 g5 d4 Ra6 f5 Ra7 h6 Bg7 d5 Bd4 exd4 Ra8 Kf2 Bd7 Kf1 Bb5+ Ke1 Be2 Qc2 Bh5 Qd1 Bg6 fxg6 Ra6 Qf3 Ra5 Qd1 Ra8 Qd3 Kd7 Kd2 Kc8 Kc3 c5 a4 f5 a5 f4 a6 b6 h3 b2 d7+ Kc7 d6+ Kc6 g7 c4 a7 Kb7 d5 g4 h7 Qc8 d8Q Qc6 d7 Qe6 d6 Qf7 Nf3 Nh6 g8Q Qe6 Ne1 Qd5 Na3 b1Q Bb2 Ka6 Qf1 Kb7 b5 Qg6 Rc1 Nf5 Qf7 Rg8 h8R Qg7+ Kb4 c3 Rh4 c2 Rd1 Qc6 Rd5 c1Q Kb3 Qd2 Nac2 Ng3 Rg5 Qf3+ Kc4 Qde3 Rc5 Qee5 Rd5 Qeg5 Rf5 Ne4 Ba3 Nc6 Bb2 Rb8 a8N Q7g6 Nc7 Nb4 Na6 Q6h5 Nc5+ Ka8 Nb3 Rg6 Nc5 Rc8 Qdf8 Kb8 d8N Re6 d7 Qg8 Nc6+ Ka8 d8N Ng5 Qh6 Re3 Qd6 Qe4+ Qd4 Rc7 Ne5 Ra7 Nde6 Ra4 Ng2 Ra2 Nge1 Qg2 Qd8+ Ka7 Qd1 Qe4+
Nn4RQ/3k1rP1/p3R1K1/3BqrR1/1p3p1n/Q1r1BpR1/P1p3R1/3B1Q2 w - - 0 1 illegal: No possible last move
bk1r1R2/b2b3Q/B1P1p2B/r3P2B/4K1n1/r1Nq1nQ1/B1N2QB1/q1Nr4 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 h5 g4 Rh6 g6 Rh8 b4 Rh7 g5 Rh8 Ra3 Ba6 Rg3 Bc8 Rg4 hxg4 Kd2 a5 Ke3 f5 h4 d5 c4 Kd7 c6+ Kc7 b6+ Kd6 c5+ Ke6 c7 Kd7 b7 g3 h5 a4 b5 a3 b6 g2 c6+ Kd6 g7 a2 g6 a1R h6 R1a3+ Nc3 Ra1 h7 R8a4 Qc2 Nf6 g8B Bd7 c8B Ra5 g7 R1a3 Bf7 f4+ Kd3 d4 g8B f3 e4 f2 Ne2 g1R Bh6 Ng4 Bg2 f1B Bh5 Bg7 Bc4 e6 Ba2 Qf6 Qd2 Rd8 h8Q Qf5 Qh7 Bh8 Kc4 d3 Nc1 Bd4 Qf2 Be2 Rh3 Rd1 Rf3 Qg6 Rf8 Bf1 N1e2 d2 Kd3 Qf5 Qh4 Bg1 Qf2 Qb5+ Kd4 Qb2 Nc1 Ba6 Nb3 Qa1 Nc1 Nf6 Ke3 Ng4+ Kf4 Be8 Kf3 Nd7 b8N Bb7 Na6 Ba8 b7 Nde5+ Kf4 Nf3 Nb4 Bd7 Nc2 Kc7 e5 Rf1 Ke4 d1Q Qg3 Ba7 Qf2 Qd2 Qg3 Re8 Qf2 Rd1 b8Q+ Kd8 Qb3 Kc7 Ba6 Rd8 Qb5 Qd6 Qd3 Kb8 Qde3 Qd2 Qf4 Qd6 Q4g3 Qd3+
R3q2N/b2n1R2/b2bbN1k/1np4N/4K3/2Pq1rQR/RB2n1rP/RQ3Q2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Bh3 Be7 fxg5 Nf6 g6 Bf8 g5 Ng8 Bg4 hxg4 Kf2 d5 Ke3 a5 b4 f5 b6 c5 e6 g3 e7 g2 g7 Kf7 e8N Kg6 c3 a4 b7 a3 b5 a2 b6 Ne7 g8R+ Kh7 g6+ Kh6 g7 Ra5 Nf6 Qe8 Na3 Ra4 Nb5 Rg4 Qf1 Nd7 Nh3 g1N b8Q Rg2 b7 d4+ Kd3+ f4 e4 Nc6 e5 Be7 e6 Ne2 Ke4 d3 Nd6 d2 Rf8 d1Q g8Q Ncd4 Qg3 Nb5 Rf7 Rf8 Bb2 f3 Nf4 f2 N4h5 Bd8 e7 Bb6 Rg1 Ba7 Rh1 Ne5 Rg1 Be6 Rh1 Nd7 Rg1 Qd8 e8R Qe7 Rc8 Qe8 Rc6 Qd2 Ra6 Qd1 Qd8 Qd2 b8R Qd1 Ra8 Qd2 Rc1 a1B Qb8 Qd1 Ra2 Qd2 Ba3 Bb2 Rca1 Bc1 Bb2 Qd1 Qb6 Bf4 Qb8 Nc7 Qb3 Nb5 Qc2 Qd2 Qcb1 Be5 Nc8 Qd1 Ne7 Bd6 Ng6 Qd2 Qfc1 f1B Nh8 Nf4 Qce1 Bfc4 Rf1 Ne2 Rf4 Qd1 Rh4 Qd2 Qf1 Qd1 Nd5 Qd2 Rh3 Qd1 Rg7 Rf3 Ndf6 Na3 Qff2 Ba6 Qf1 Nb5 Rf7 Qd3+
6Nr/1b1nQnN1/1B1R3p/P1QQR2P/kb2R3/N3q2K/2b4n/r1bRn1R1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 f4 g6 f6 Ra7 f5 Bg7 f7+ Kd7 f6 Bf8 Bd3 Ra8 Bf5+ gxf5 Kf2 b5 Kg3 c5 h4 e5 a4 b4 d4 h6 h5 f4+ Kh3 e4 g4 f3 a6 f2 d6 Kc6 d7 f1N d5+ Kb6 a5+ Kb5 a7 c4 g5 c3 g6 c2 g7 b3 d6 b2 Qd5+ Kb4 Ne2 e3 Na3 b1B Rg1 Ba2 Nf4 e2 Be3 c1B Ne6 e1N Bb6 Be3 Rd1 Qe8 d8Q Nd7 Qe7 Ne5 d7+ Ka4 d8R Bb7 Rd6 Rd8 a8R Bb3 Rc8 Nh2 Rc5 Bd2 Rc4+ Bb4 Re4 Rc8 Qd8 Be7 f8R Rc1 f7 Nf6 g8N Ra1 Ng7 Bc2 Qc7 Nfd7 Qcc5 Qd8 Re8 Bg5 f8Q Nf7 R8e7 Bc1 R7e5 Qg5 Qe7 Qe3+
1rR1R1nR/Bn3b2/3p1b1N/3PQn2/2r2rRP/Q1nk1NQ1/1q2N3/1R2K1r1 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 d4 Kf7 h4 Kf6 f4 e5 c4 a5 d5 g5 h6 b4 h7 g4 c5 g3 c6 e4 c7 a4 Qc2 b3 Qg2 d6 Qf3 g2 Qe3 b2 Nc3 b1N Qg3 e3 Nf3 e2 Rg1 a3 Be3 Na6 b8R a2 b7 Be6 c8R Bf7 Ba7 Qb6 Re8 Qb5 Rbc8 Bg7 b8Q Qb2 Qb4 Rb8 Qb3 Nc5 Qa3 Nd2 Rb1 a1R Rh1 g1N Rh2 Nb7 Rg2 Nh3 Rg1 Nf1 Rg2 Ng5 Rg1 Ne7 Rg2 Rf8 h8N Ne4 Rg1 Be6 Nf7 Ne3 Nh6 Rf7 Rh8 Ng8 Rg2 Rc7 Re8 Rc4 Rc8 Bf7 Rg1 Ke7 f6+ Kd7 Re8 Kc7 f5 Ra2 Qe5 Ra1 Rg4 Ra2 Qb3 Raa4 Qa3 Rab4 Na2 Nc3 Nc1 Be6 f7 Bf6 f8Q Bf7 Qg3 Rf4 Qg7 Rbc4 Kf2 e1R+ Ne2 Rg1 Qg5 Bd8 f6 Nf5 Qh5 Be6 f7 Bf6 f8R Bf7 Be3 Ng7 Qe5 Nf5 Bd2 Kb6 Be3+ Kb5 Ba7 Rc5 Rc8 Kc4 Rfd8 Kd3 Re8 Rg2+ Kf1 Rcc4 Ke1 Rg1+
n1nnNbN1/Bb4n1/PbQr1RN1/1KQrQN2/3pR3/1k6/2qP4/R4b1N w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c6 b4 Ra7 bxa5 Ra8 Bb5 cxb5 Ke2 Kf7 Kd3 g5 a4 e5 h4 d5 f4 b6 c4 b4 h6 d4 h7 b5 c5 g4 c6 g3 h5 g2 a6 b3 a5 b2 h6 b4 Kc4 e4 f6 Ke6 c7 e3 f5+ Ke5 f7 b3 a7 e2 f6 e1N a6 Bh3 c8N Qc7+ Kb5 Kd5 Qc2 Nf3 Nd6 Nc6 Nf5 Ng5 Ne2 g1B Neg3 Rd8 a8N Bh2 Re1 Nge7 Nh1 Nc8 Re4 Ne6 Qc3 Rg8 h8N Rg5 h7 Ng7 Ng6 Rd6 h8Q Nd8 Qf3 Qc2 Qhh5 Be7 f8Q Bf4 Qe8 Bf8 f7 Bf1+ Qe2 Be7 f8R Bh2 Rf7 Bf8 Rf6 Be5 Na3 b1B Nh6 b2 Nc4 Ba2 Qg2 b1N Ba3 Bf4 Bc5 Na3+ Kb4 Be5 Ng8 Nb5 Ba7 Nc7 Qge2 Bb3 Qeh2 Ba4 Qf4 Bc6 Qg3 Rd7+ Nd6 Bb7 Ka5 Bf4 Nf5 Kc4 Qg2 Bh2 Qe5 Kb3 Qc5 Rd6 Qe5 Nd5 Nc7 Ndb6 Ne8 Na8 Qc5 Rc6 Qhe2 Bc7+ Kb5 Rd6 Qh2 Rd5 Qd6 Bb6 Qc6 Rd6 Nfg3 Rgd5 Nf5 Bh3 Qh2 Bg2 Qe5 Bf1+
1RRqQnn1/RB2pB2/7k/1rBP4/1r1rB1Qb/2n2p1b/QB3P2/1b2NK2 w - - 0 1 illegal: No possible last move
3b1B2/1rp1n1N1/q1P3p1/1N4K1/PrqR1N1Q/Q1Q4n/b5NB/qb1BNk2 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 f4 Ke7 fxg5 Ke8 g6 Qd8 g7 Nf6 g8N Bh6 a4 Qe7 g4 Bf8 g5 Kd8 g6 Ke8 g7 Qd8 Ra3 Na6 Rg3 Nb8 Rg6 hxg6 Kd2 b5 Ke3 d5 Kf4 Kd7 c4 Kc6 h4 Kc5 e4 b4 h5 b3 e6 d4 a6 b2 a7 d3 h6 Kd4 e5 d2 h7 Qd7 e7 Bb7 e8Q Ba6 c5 Bb5 e6 Ne4 c6 f5 e7 Ng5 Nc3 b1Q Qf3 d1B Nh6 Qd8 g8Q Qd7 Ba3 Ba6 Qb3 Bc4 Qd8 Qd5 e8N Be7 Rh4 Na6 Ng4 Nb4 Ne3 Qa1 Be2 Rb8 a8N Rb7 Ng7 Bc2 Nb6 Bb1 Bd1 Kd3 Nb5+ Kd2 Qh3 Ke1 Ng2+ Kf1 Qbc3 Bca2 Nf3 Qc4+ Qdd4 Rg8 h8B Bd8 Nd5 Re8 Nfe1 Re4+ Kg3 f4+ Kg4 f3+ Ndf4 Nd5 Bf8 f2 Qc5 Rb6 Q5a3 Ne7 Qh2 Nh3 Qh1+ Ng1 Kg5 Rb7 Qh2 Re2 Rg4 Rb2 Qh4 Rb4 Ne2 Qe6 Rd4 Qc8 Nef4 Qa8 Ngh5 Qa6 Be5 Nh3+ Kf6 Kg1 Ng7 f1Q Bd6 Qc4 Be5 Nf2 Kg5 Kf1 Ne2 Qd3 Bh2 Qc4 Nef4 Nh3+
nr1qBB1r/1RQ1bB1K/4r3/1Q3pq1/b1Np4/4RB2/P2PR1qQ/k2n2B1 w - - 0 1 legal: proof: f4 a5 b4 e5 bxa5 h5 fxe5 h4 Nc3 c6 Nb5 h3 gxh3 cxb5 h4 b4 h5 Rh7 Nf3 Rh6 Ng1 Rh8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 Kf5 Kd4 h4 g5 e4 b5 c4 d5+ e6 b3 h6 f6 Kg6 b4 h7 f5 a6 b2 e5 b1Q a7 b3 e7 g4 e8R b2 h5 g3 h6 g2 e6 Qc2 c5 b1R c6 Na6 e7 Nc7 Nf3+ Ke4 Rh3 Bg7 Qe2+ Kf4 Qb5 Ke4 Ba3 Bf6 Ne5 Bd7 Nc4 Re1 Rb1 Rb8 a8B g1Q+ Rg3 Bg5 Re3+ Kd4 Bb7 Na8 c7 Qe4 c8Q Qeg2 Qc7 Nf6 Bd3 Rf8 h8B Rg8+ Bg7 Re2 h7 Re1 h8Q Bc6 Qa6 Ba4 Qhh2 Re2 Qb5 Re1 Ne5 Ng4 Bc4 Nf2 Kh7 Nd1 Bf8 Bf6 Re2 Qg5 Bb3 Q1g2 Nc4 Kd3 Bd6 d4 Bf3 Bg7 Bg3 Be5 Bf2 Bd6 Bg1 Bc5 Rf2 Re6 Re2 Qd6 Rc8 Qd8 e8B Be7 Rb2 Qd7 Rd8 Qc8 Rd5 Qd8 Rde5 Qd5 Qbc5 Rf6 Nb6 Qd8 Bbf7 Rc6 Rb1 Re6 Nc4 Kc2 Rb7 Kc1 R5e3 Kc2 Bb5 Kb1 Bbe8+ Ka1 Qb5 Rh8+
bN1QR3/4r1Rq/5p2/2nR4/NPn1Rr1Q/K1QR1Pn1/3q1bNp/1k2Bq2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Kd7 e3 e6 d6 Bb7 d5 Qe7 Bc4 Qd8 Bb3 Bc8 Ba2 Ke8 d7+ Ke7 Bc4 Kd6 Bb3 Ke5 d6 Kf5 Bd5 exd5 Ra3 Ke5 Ra1 Ke6 Kd2 Kf5 Kc2 Ke4 Kb3 h5 g4 a5 b6 c5 b7 d4 g6 d3 g5 d2 f3+ Kd3 e4 h4 g7 h3 e5 c4+ Ka3 h2 b4 c3 e6 a4 e7 f6 e8R c2 g6 Ne7 g8R Ra7 g7 Rh4 Ne2 Na6 b8N Rf4 Bb2 c1Q Re1 Nc5 Nbc3 Qb1 Qb3 d1N Bc1 Rc7 Bd2 Ne3 Rd1 Qc2 Be1+ Qd2 Rab1 N7f5 Rbc1 Qe7 d8Q Ng3 d7 Qf7 Re4 Bd6 Rge8 Bb7 g8Q Ba8 Qg4 Qh7 Qh4 Be5 Rb1 Bd4 Qc4+ Kc2 Ra1 Rf5 Nf4 Rb7 Ng2 Rf4 Qc7 Ra7 d8R Rb7 Qa5 Rc7 Rd5 Re7 Ka2 a3 Qd8 Na4 Qc6 Nc5 Na4 Nc4 Rab1 Bf2 Qcc8 Qc1 R1d3 Qd2 Rb2+ Kc1 Qcc7 Na6 Kb3 a2 Qe5 a1Q Rc2+ Kb1 Qc3 Qe2 Rcd2 Qe3 Rg5 Qd4 Rg7 Qe3 Rd5 Qe2 R2d3 Qf1 Nc5 Qb2+ Ka4 Qd2 Kb3 Nb2 Na4 Nc5+ Ka3 Nc4+
2Q2R2/3bN1K1/3nQb2/4br1p/1q1N2b1/1pNNPRNP/1RbQ1B2/k3rn2 w - - 0 1 illegal: No possible last move, all moves rejected
3RRq1Q/B1r4n/ppb2RQQ/1B2r2B/P1rQPbN1/r1Q2n2/1K1r2k1/8 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 Qe7 Qd2 Qf6 Qd1 Qd8 g4 h6 g6 Qc7 Nc3 Qb6 Ne4 Qd8 g5 h5 Nf2 Ne7 Ng4 hxg4 Be3 Ng8 Bd2 Ke7 Bc1 Ke8 Kd2 Ke7 Kc3 Ke6 a4 Kf5 e4+ Ke6 h4 f5 g7 d5 c6 g3 h5 f4 g6 f3 h6 f2 c7 g2 h7 d4+ Kb2 a6 c4 d3 c5 d2 c6 Be7 Nh3 g1R Bb5 f1R Nf2 Nf6 g8R Bd6 g7 Rg3 Ng4 Ra3 Rh6 Bd7 c8Q Qf8 c7 Nc6 Qb8 Ra7 c8Q Nd4 Qc3 Rf4 Qg1 d1R Be3 Rd3 Rd1 Nf3 Qd8 Rd5 Qb6 Rf5 Bc5 Bc6 Qgd4 Qa8 Rb8 Rc8 h8Q Rc7 Rg8 Qf8 Rg6 Ra8 Qh6 Rd8 Rh8 Rdc8 g8Q+ Kd7 Rd3 Nh7 e6+ Ke7 Rf6 Rfe5 Qde3 Rd4 Qeg5 Rc4 Q5g6 Rd8 Be3 Rdd7 Qbd4 Rd8 Qd5 Rdd7 Ba7 b6 Rd2 Bc5 Qdd3 Be3 Qdd4 Rdd5 Q8g7+ Kd6 Rg8 Bg5 Qh8 Bf4 e7+ Re6 Qdd3 Kc5 e8B Ree5 Qgg5 Rd6 Bh5 Rd8 Qgg6 Rdd5 Qdc2 Rd8 Rdd6 Rdd7 Rde6 Rd2 Qb4+ Kd4 Re8 Rd1 Qc1 Kd3 Rd8+ Ke2 Qcc3 Kf1 Qd4 Kg2 Qbc3 Qd6 Rge8 Qf8 Rfd6 Rd3 Rf6 Rd2+
1K1bb3/R1Q2n2/2N2p2/2b2b2/2B2pP1/4nPRR/1NN1qnQQ/Nk2r1Nr w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Bh3 b3 Bc8 Bb2 e5 Bd4 Ba6 Be3 Bc8 Bf4 exf4 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 a5 d4+ Kd6 b6 c5 Kb5 h6 g6 c4 g7 a4 e5+ Kd7 b7 c3 e6+ Kd6 b4 c2 e7 c1N e8N+ Ke7 d6+ Ke6 d5+ Kf5 d7 Ke4 d6 a3 Qe2+ Kd4 Rh3 a2 Nd2 Nc6 b8N Ra3 Na6 Nd3 Nb3+ Kc3 g3 Qf6 Kb6 Nd4 Ka7 Qe5 d8N Bf5 b5 Nc2 d7 Kb2 b6 Bc5 Nd6 f6 Nc6 h5 d8R h4 Kb8 Nh6 g8Q Nf7 b7 Qe7 Qh5 Qe2 Nab4 Ne3 Nc2 Ra4 Qg7 Re4 Rg8 Bb6 Qgg4 Bd8 Qf3 Re5 Qg2 Rh6 Rg7 Re6 g4 Rh8 Rc1 a1B Nc4+ Ka2 Re1 Bd4 Nb2 Bc5 Nba1 Rh6 Rg3 h3 Rh7 h2 f3 h1B Qhh2 Nf2 Rd1 Re7 Rd7 Kb1 Kc8 Re8 b8Q Rh5 Qc7 Re4 Qgh3 Bg2 Kb8 Qd3 Ne5 Nh8 Qd6 Ned1 Ra7 Nf7 Qc7 Re1 Qh1 Ne3 Be2 Bf1 Q3g2 Rh2 Rhh3 Qd2 Ba6 B1d3 Bb5 Qe2 Ba6 Bd7 Nc6 B3f5 Bb5 Be8 Bc4 Qd2 Ne2 Qd3 Qhg1 Rh1 Q1h2 Qd1 Ng1 Qe2
b1NR4/4p1n1/4P3/1BR3Nr/PnQK1RrR/3Q1R1b/1r1p3k/QNq1r1b1 w - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 bxa5 Nh6 f4 Ng8 fxg5 h6 g6 Ra7 g7 Ra8 g4 Qb6 g5 Qc7 g6 Qd8 Bg5 hxg5 Kf2 f5 Ke3 d5 h4 Kd7 c4 Ke6 a3 Ke5 h5 b5 c6 b4 h6 d4+ Kd3 Kf4 e4 Kg3 h7 g4 a6 b3 a7 b2 e5 f4 c5 f3 e6 f2 c7 Nh6 g8Q Bb7 c8N Qc7 g7 Nc6 Ra2 Nf5 Nf3 Nb4+ Kc4 d3 c6 Rb8 a4 Ba8 Ra3 d2 Qc1 Rb5 Rh4 Re5 Ng5+ Re3 Be2 f1B Qc3 Qb7 c7 Qh1 Qd3 Bh3 Qf7 Kh2 g8R Bh6 Rd8 Ng7 Qf4+ g3 Kd4 Qc1 Bf1 Rf8 h8Q Rf5 Qfe4 g2 Be2 Bd5 a8R g1R Ra5 Ba8 Rc5 Re5 Rf8 Rg4 Rf4 Rf5 Qc4 Re5 Qed3 Rf5 Nb6 Rfe5 c8R Rf5 Rd8 Rfe5 Nc3 b1R Nc8 Rb2 Nb1 Rf5 Bf3 Rfe5 Bc6 Rf5 Bb5 Rfe5 Ne4 Rh5 Ng5 Rc2 Qf5 Reg3 Ne4 Rb2 Ke5 Ne8 Rf1 Be3 Ng5 Ra2 Rf4 Bg1 Qhf6 Rf3 Re3 Ng7 Qfd3 Rf2 Ref3 Re2+ Qce4 Re3 Qc4 Nc6+ Kd5 Rc2 Qa1 Nb4+ Kd4 Rb2 Qed3 Re1+
1knb2K1/2RRQ3/1b3nB1/r3B1p1/3q1Q1R/Bbrp1nPB/2QP2N1/5nB1 w - - 1 2 legal: proof: e4 c5 b4 f5 exf5 h5 bxc5 b5 a4 h4 axb5 Nf6 Nc3 Ng8 Nce2 h3 g3 Ba6 Nf4 Bc8 Ng2 hxg2 Ke2 d5 Kd3 Kd7 Kd4 Kc7 Ke5 a5 h4 g5 c4 a4 f4 d4 b6+ Kb7 f6 d3 f7 e6 f5 a3 c6+ Ka6 c5 a2 h5 Be7 f8B Nf6 h6 Nd5 h7 Nc7 f6 Ra7 b7 Nd5 f7 Bd7 c7 Qc8 c6 Kb6 Nf3 g1B Nh4 Bd8 Ng2 Ra5 Qc2 Ka7 Rh4 Bb6 Bc5 Re8 Kd6 e5 h8B e4 f8Q e3 B1a3 e2 Be5 e1N Qe7 Nf3 Bg1 Be6 Re1 Nd7 b8Q+ Ka6 Ree4 a1N Rd4 Qb7 c8R Qa7 c7 Rh8 Qb1 Nc2 Be2 Nce3 Qc2 Nf1 Bd1 Ne1 Bh5 Nf3 Bg6 Rf8 Rh7 Bg8 Rdh4 Rf4 Rg7 Rc4 Rf7 Rc3 Ke6 Bf2 Qbb4 N7b6 Qba4 Kb7 Qf4 Nb4 Kf6 N4d5+ Kg7 Be3 Rf6 Bc5 Rd6 Bd4 Rd7 Be6 Ra8 Nc8 Kf8 Qb6 Rb8+ Ka7 Rb7+ Ka8 Kg7 Qb4 Kh7 Bb6 Kh8 Qd4 Kh7 Na7 c8B Bf7 Rbc7 Kb8 Kg7 Be6 Rd6 Bg8 Bh3 Nc8 Kf8 Nb4 Rdd7 Bb3 Kg7 Nd5 Kg8 Nf6+
kN1Rr1r1/3N2R1/NQ2Bq1R/pb6/Pbp1K1PQ/nn6/N2r4/Nn1r2Q1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 hxg5 Nh6 b4 Ng8 bxc5 Bh6 Ba6 Bg7 Bf1 Bf8 c4 d6 c6 Qd7 c7 Nf6 c5 Qd8 c6 Ng8 Ba3 Bd7 Bb4 Bc8 Bc5 dxc5 Ke2 e5 Ke3 a5 d4 b5 g4 h5 f4 b4 a4 h4 f6 e4 f5 h3 d5 b3 d6 b2 d7+ Kf7 Nd2 b1N Ne2 h2 Nc1 Rh5 Ndb3 Na3 Na2 Bh6 Bc4+ Kf8 f7 Ke7 f8N Ra7 Be6 c4 Qg1 Kd6 f6 Bg7 g6 Rg5 f7 Ba6 c8Q Qf6 d8N Ne7 c7 Nbc6 Qb7 Bb5 c8Q Nd4 Nd7 Bf8 g7 Rg6 g8R Nd5+ Kd2 Rg7 Rd1 Nc3 Ke3 Ncb1 Nc6 Ra8 Qe8 Rd8 Na1 Be7 Qa6 Kc7 f8N Bb4 Qe7 Nb3 Ncb8 Rg5 Qad6+ Kb7 Rg7 Ka8 Nc5 Rg6 Qb6 Rd2 Nfd7 Rg5 Bf5 Rg6 Kf4 e3 Ke4 e2 Nca6 Rg5 Be6 Rg6 Rh7 Rg8 Rg7 e1R+ Qge3 Qc3 Qg5 Qf6 Qh4 Rb2 Rd6 Ree2 Rhd1 h1R R1d3 Red2 Qg1 Rd1 R3d5 Rbd2 Rh5 Rh3 Rh6 Rf3 Ndc5 Re8 Rd8 Rf5 Ncd7 Rg5 Rf7 Rgg8 Re7 Rd5 Rg7 R5d2
B1bb4/1NpQbBNr/4pKnB/2PqP1R1/N4Q2/4b1B1/2B1rQ1n/k5q1 w - - 0 2 illegal: No possible last move, all moves rejected
N2N4/1br2N1B/4K1R1/2q1bNQr/1pq1n2p/1PQBB1Nk/2nb1b1P/7Q w - - 1 2 legal: proof: d4 b5 a4 c5 g4 e5 dxe5 f5 gxf5 Bb7 Ra3 Ba6 Rb3 Bc8 Rb4 cxb4 axb5 Qf6 Qd3 Qg5 Qd1 Qd8 Kd2 Ke7 Kd3 a5 Kd4 d5 f4 g5 c4 h5 e4 a4 e6 Kf6 e5+ Kg7 e7 Kh6 e8B h4 b6 a3 b3 g4 b7 a2 e6 a1B+ Nc3 g3 Ke5 g2 f6 d4 f5+ Kh7 c5 d3 e7 d2 c6 Kh6 c7 Kg5 f7 Bb2 f6 Nd7+ Ke6 Ra1 b8N Bg7 f8Q Nb6+ Nd7 Na8 f7 Ra4 Bd3 Rh7 Nb5 Bge5 Nd4 Ra5 Qg7+ Kf4 f8N Nb6 Beg6 Nd5 e8N Ngf6 Nf5 Ne3 Ned6 Ne4 Nf7 Nc2 Ne2+ Kg4 Rg1 Qg5 Neg3+ Kh3 Qf1 d1Q Be3 Ba6 c8Q Bc1 Qc3 Qdg4 Nb6 Bd2 Na8 Bb7 Qe1 Rh5 Bh7 Rc5 Qf6 Rc7 Qc1 Qg7 Qg5 Qh6+ Ng6 Qf8 Nd8 Qe2 Nh8 Qc5 Nhf7 Qg4 Rf1 g1B Qe1 Bf2 Rg1 Bc1 Rg2 Qf4 Qh1 Bd2 Nf1 Nf6 Qh6 Qf8 Rg6 Qc5 N1g3 Qfd4 Qf4 Ne4 Qg5 Qdc4+
3R1q2/pR4n1/R1RbN1P1/2Bb1Q2/nQ6/P1Rpq2Q/2Kb2rr/2B2bkB w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 Qe7 Qd2 Qf6 Qd1 Qd8 g4 h6 g6 Qc7 Nc3 Qb6 Ne4 Qd8 g5 h5 Nf2 Ne7 Ng4 hxg4 Be3 Ng8 Bd2 Ke7 Bc1 Ke8 Kd2 Ke7 c4 Ke6 e4 f5 h4 b5 g7 d5 g6 f4 c6 g3 c5 g2 h5 f3 c7 f2 c6 b4 h6 b3 h7 b2 Qf3 b1B Qf5+ Ke7 e6 Kd6 e7 Kc5 e8Q Kd4 e5 Ba6 c8Q Nh6 g8R Nd7 c7 Be4 e6 Bd6 e7 Nc5 Rh3 Qd7 Rc3 Na4 Rg7 Qe6 Qb5 Rb8 Nh3 g1B Bg2 f1Q e8R Bf3 Ng5 Be3+ Kc2 Bd2 Rf8 Qe3 Qb4+ Bc4 Qh3 Nf5 Bh1 Bg2 Rd7 Ng7 Rfd8 Qf8 Ne6+ Ke4 Re7 Bf3 Qd7 d4 c8R Rb7 Rc6 Bf1 Qc8 Rb5 Rb7 Rg5 Qd7 B3g2 Qc8 Rg3 Qd7 Kf3 Qc8 Rg8 h8B Kf2 Qd7 Bf3 Qf7 Kg1 Qff5 Nh5 Bf6 Ng7 Be7 Bd5 a3 Rg5 Rb1 Rg2 Rbb6 Rh8 Ra6 Bb8 Bc5 Bd6 Qc4 Rh6 Rb7 Rh4 Qb4 Rh5 Qhg4 Rh2 Qh3 d3+
n4NB1/3R1q1Q/1p2nPQK/3B3Q/1p5p/3b2bk/rNbNQ2P/Q1r1B2n w - - 0 1 legal: proof: d4 a5 g4 c5 a4 f5 gxf5 e5 dxe5 Ne7 b4 Qb6 bxa5 Qd8 Ra2 Ng8 Rb2 Qe7 Rb5 Qd8 Rb4 cxb4 Kd2 Kf7 Ke3 g5 c4 h5 f4 d5 a6 b6 f6 Kg6 c5 Kf5 f7 Kg4 f5 h4 e6 Nf6 a7 Rh6 c6 Qc7 e7 Nbd7 e8Q Rh8 a5 Qd8 a6 Ne4 c7 Ne5 f6 Nd3 Na3 Nd6 Bd2 Bd7 c8Q Nf4 Qb7 Bb5 Nf3 Rh7 Nc4 Rc8 a8B Qd7 a7 Ne6 Nb2 Bd3 Be1 Nb5 Nd2 Bd6 f8N Rc1 Qg6 Qf7 Qe7 Rg7 Bb7 Nbc7 a8Q Rh7 Qa1 Bg3 Bg2 Na8 Ba6 Be5 Bc4 Bg3 Be4 Kh3 Kf3 d4 Bed5 Rc3 e4 Rc1 e5 Rh8 Qe2 Rg8 Nd7 Rc8 Ba2 R8c7 Bab3 Ra7 Nf8 Ra2 Qa7 Ba6 Ke4 d3 Kf5 g4 Rf1 Bc4 Rf4 Bb5 Rc4 Ba6 Rc7 Bc4 Rd7 Bb5 Ndc4 d2 Qc7 d1B Nd2 Ba6 Qc2 Bc4 Qce4 Bc2 Q4d3 Nc5 Kg5 Ne6+ Kh6 Bb5 Qdf5 Bbd3 Qh7 Bf2 Qg5 g3 Qgh5 g2 Q5g6 g1N Bbc4 Ng7 e6 Bg3 e7 Ne6 Qeh5 Ne2 e8Q Bc7 Bb3 Ng3 Qe2 Nh1 Qeh5 Nd8 Qee2 Bg3 Bbc4 Qe7 Bg8 Qf7 Bd5 Ne6
2B1n2q/1QQp1N2/b1BN2B1/1BrPK3/r3PR1b/2B3n1/1NQp1n1p/2b3k1 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 f4 e5 fxe5 g4 d4 g3 d5 Be7 hxg3 Na6 g4 Bd6 g5 Nb8 Ra3 Be7 Rd3 Bf8 Rd4 cxd4 Kf2 Ke7 Kf3 a5 Ke4 h5 g4 a4 c4 f6 g6 d3 g7 a3 e6 Kd6 g5 d2 b6 a2 g6 a1B b5 Kc5 e7 h4 e8N h3 b7 h2 b6 Na6 b8Q Rh3 b7 Ra7 Nd6 Qa5 Qc7+ Kb4 b8Q+ Bb7 c5 Qa3 c6 Kc5 Nf3 Bc3 Ne5 Qb2 Na3 Be7 Nef7 Nh6 g8B Ng4 g7 f5+ Kf4 Kd4 Nac4 Re3 Qc2 Bh4 Bh7 Nf2 g8B Bb4 Rg1 Ba3 Bg6 Rc3 Rg4 Qa1 Nb2 Rc5 e4 Bc8 Qcb7 Nc7 Bb5 Ne8 c7 Ra6 Bc6 Ra4 Qb5 Ba6 c8B Rac4 Qc7 Ra4 Nd1 Qc3 Qbb7 Qh3 Bb2+ Qc3 Ba1 Bc1 B8h7 Qb2 Bh5 Qc3 Qa2 Kd3 Qc2+ Ke2 Nb2 Kf1 B7g6 Qg7 Rg3 Qh8 Rf3 Kg1 Bg4 Qf8 Ke5 f4 Bh3 Qg8 Bf1 Qf8 Rh3 f3 Bfb5 Qh8+ Kf5 Bf6 Rh4 Bg5 Rf4 Bh4 Nh6 Nd1 Nhf7 f2 Qbb6 f1N Qbb7 Qf8 Ke5 Nf2 Nd1 Qh6 Bc3 Ng3 Nb2 Qh8+
2nb2k1/n1NQ4/r1p2QN1/RNK3R1/1Rr5/2Pp2b1/2n1P1pq/RB2R1Qb w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Nc6 g5 Nb8 g6 Qf6 Be3 Qd8 Bg5 hxg5 Kd2 f5 Ke3 a5 Kd4 d5 h4 f4 b4 a4 b6 c6 b7 f3 b5 a3 e6 f2 c3 g4 e7 a2 b6 g3 h5 Qd6 h6 Ra6 h7 Nd7 Bh3 f1N b8R Ne3 b7 Nb6 Na3 Qe5+ Kc5 Nc2 Bg2 d4+ Bd5 Qh5 Ra8 Qh2 b8R d3 Nh3 Ne1 Nf4 Nc2 Rc1 a1B Qg1 Bb2 Re1 Bc1 Ba2 Bd2 Nb5 Bc1 Ne6 Bf4 Bb1 Bc7 Qf1 Bd8 Qf6 Bd7 Rhf1 Nc8 Rb7 Na7 Rf5 Nh6 g8Q Nf7 g7 Nd6 Rg5 Ndc8 Rb6 Ra4 Ra6 Rf4 Ra1 Ra4 Rg4 Ra5 Rb4 Ra6 Ng5 Bh3 Ne6 Bg2 Nec7+ Kd7 Qgf7 Rg8 h8N Bh1 Ng6 g2 Qc4 Rh8 g8R Rh4 Qcf4 Bh6 Qf1 Bf4 Qg1 Bg3 Nf4 Rh3 Rg5 Rh4 Ng6 Rf4 Rba4 Rd4 Ra5 Rf4 Rb8 Rg4 Nd4 Rh4 Rb4 Rf4 Ndb5 Re4 Ne6 Ke8 Qh8+ Kf7 Qf6+ Kg8 e8Q+ Kh7 Qd7+ Kg8 Nec7 Rc4+
R2QB1R1/pQ2nn1R/2P1N1b1/q1K5/1Qb1r1k1/P1N2pb1/2RNR2p/r1n5 w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 c5 hxg5 Be7 b4 Bd6 bxc5 Bf8 c4 d6 c6 Bd7 c7 Bc6 c5 Bf3 c6 Bg4 Ba3 Bc8 Bc5 dxc5 Kf2 Ke7 Ke3 Ke6 g4 f5 d4 b5 d5+ Ke7 a3 h5 e6 b4 d6+ Ke8 g6 b3 d7+ Ke7 g7 Kf6 e7 Kg5 e8N h4 Ra2 h3 Qe1 b2 Nc3 b1B Rc2 c4 Kd4 f4 e4 Bb4 e5 Be7 e6 Rh5 Be2 Bd6 e7 Bb7 c8Q Ba6 Nc7 Bb5 e8R Ne7 Qb7 Rh7 g8R+ Rg7 Rc1 Bg6 Rc2 Be5+ Kc5 h2 Rh8 Rf7 Rh7 Rf6 Qd2 Rd6 Qe1 Rd1 Rg8 Ra1 Ne6+ Kf6 g5+ Kf5 Qh4 Qa5 d8Q Bc7 Bh5 Nd7+ Kd4 Rb8 Nf3 Ne5 Nd2 f3 Kc5 Nf7 Re1 Bg3 Re2 Rc8 Qdb6 Rc7 Ra8 Rc8 Qd8 Rc7 Na4 c3 Qb4 Rd7 Rb2 c2 Nc3 c1N Rc2 Ne5 Qbc7 Rd4 Qb7 Be8 g6 Re4 g7 Nf7 Bg6+ Kg4 g8R Bd7 Ng7 Bf5 Ne6 Bc4+ Q4b5 Nh8 Bf7+ Bg6 Be8 Qa4 Qb1 Nf7 Q1b4 Qa5+
4BqQb/QBNp1Brr/1qn2P1k/NBnb4/2R5/1p1Q2qp/K4N1P/4B3 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 g4 Ng8 gxf5 c5 b4 Be7 b6 Bb7 b5 Bf8 Ra4 Bc8 Rb4 cxb4 Kd2 Kf7 c4 a5 Kc2 h5 Kb3 g5 e4 Kg7 f4 g4 e6 g3 c5 g2 e7 h4 e8B a4+ Ka2 a3 c6 Rh5 e5 Ra7 c7 Ne7 b7 Ng6 e6 Kh7 b6 Rh6 e7 Nh8 f6 Ra8 f5 Bg7 f7 Bd4 f8Q Bb2 Bd2 Ra4 Nh3 g1Q Be1 Nf7 Qd3 Nd6 Nf2 h3 Nd2 Nc6 b8N Ra5 b7 Qg3 Nc4 Bh8 f6+ Ne4 Na6 Rg5 b8Q Bb7 c8B Qb6 Na5 Rg7 Bf7 Rh5 e8B Kh6 Qc7 Nc5 Qg8 Ba8 Qa7 Bb7 Ka1 a2 Nc7 Ba8 Bb7 Rh4 Kb2 a1Q+ Kc2 Qd4 Kb1 Qdd6 Ka2 Qf8 Be2 Rh7 Rf1 Rg4 Rg1 Rgg7 Rg2 Qf4 Rg4 Qg3 Rc4 Ne7 Ba6 Bd5 Bb7 Nc6 Bd1 Nb8 Ba4 Nc6 Bb5 b3+
1qBB1r2/3B2pn/5NP1/Kb2b1Q1/B2knR2/1Bp2QpP/1r3RRQ/q1q5 w - - 0 1 legal: proof: f4 a5 g4 e5 fxe5 d5 c4 a4 cxd5 a3 Nc3 h6 Ne4 Ra5 Ng5 Ra8 bxa3 Ra6 a4 Ra8 a5 Ne7 N5h3 Ng8 g5 h5 Nf2 Be6 Ng4 hxg4 Rb1 Bf5 Ra1 Bc8 e4 Kd7 a4 f5 d4 b5 Kd2 c5 Kc3 f4 g6 f3 e6+ Kd6 e5+ Kc7 a6 Kb6 a5+ Ka7 h3 c4 e7 g3 Kb4 f2 d6 c3 e8B Rh5 e6 Bd7 e7 Nf6 d5 Bc8 d7 Re5 d6 Nh5 Nf3 Re2 Nh2 Qc7 d8Q Bg4 d7 Ra2 Qf3 Be6 Bc4 f1Q Rg1 Nf4 Rg2 Rd2 Ra4 Rc2 Ng4 Rb2+ Bb3 Nh5 Nf6 Bf7 Bg5 Qa1 Rf2 Qe5 Qh1 Qe3 Qh2 Bc4 Ra2 Qec1 Rf4 Rb1 Rg2 Rb2 Nd5 Re2 Bd1 Qd2 Bf7 Nf6 Ba4 Ne4 Bf6 Nc5 e8B Qdc1 Qe7 Rc2 d8R+ Nbd7 Qe5 Rd2 Qg5 Bd6 Be7 Bf1 Nf6 Be5 Rb8 Nf8 Bd7 Ne4 Rb6 Re8 Bd8 Nh7 Rd6 Ka8 a7 Kb7 Bg8 Rc2 Rdd2 Rf8 Rdf2 Ra2 Bde6 Kc6 Bc8 Kd6 Bf7 Bc4 a6 Bd3 Ka5 Kc5 a8B b4 a7 b3 Bad5 b2 Bc6 b1Q B6d7 Qb8 Bfe6 Rb2 Bb3 Bb5 a8Q Nd2 Qf3 Ne4 Bd1 Kc4 Bb3+ Kd4
1k2qNRR/pp4q1/4r3/n3Rp2/QbKQ1B2/1R1rPP2/qB2b3/nQ2RB2 w - - 0 1 illegal: No proof kernel
N1RQ4/p2N1P1Q/6Bp/N3R3/Q1R1rNr1/N1b2nnP/3pbq1b/k1q4K w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 gxf5 e5 d4 Be6 d6 Kf7 d5 Bc8 Be3 Ke8 Bd4 exd4 b4 Kf7 f4 Kf6 Kf2 c5 Kg2 g5 e4 h6 d7 d3 e5+ Kf7 b6 c4 b7 d2 f6 g4 e6+ Kg6 f7 Kf5 e7 Ke4 e8N Kd4 b5 c3 h3 g3 d6 c2 f5 c1Q b6 Qa3 f6 Nc6 b8Q Qe3 b7 Qb6 d8N Rh7 d7 Qc7 Bd3 Bg7 f8N Ne5 f7 Ne7 Bg6 Nf5 Ra5 Qc1 Nc7 Nf3 Na3 Kc3 Ne2+ Kb2 Re5 Ka1 Nf4 Bh8 Nc6 Rg7 Rg1 Qf2+ Kh1 Ne3 d8Q Bg4 Qa4 Nf1 Nd7 Rg8 Na5 Bg7 Rb5 Bc3 Re5 Rg7 Qh8 Bh5 Qbf8 Re8 b8R Rg8 Rc8 Re7 Rc5 Re4 Rc4 Bg4 Qd8 Bh5 Bf5 Rg4 Bg6 Re1 Qb4 Rg5 Rc5 Ne3 N5c4 Nd4 Na5 g2+ Kh2 Rg3 Rf1 g1B+ Kh1 Bh2 Qh7 Bd1 Rc4 Rg4 Qb3 Nf3 Qa4 Re2 Re1 Nf1 Na8 Re5 Ree4 Be2 Red4 Re7 Rd5 Re4 Re5 Ng3#
B1qQ3b/Kb3pBN/1pp5/NRQ3n1/1P1br3/BNPN1k2/1q1n2r1/3N2Q1 w - - 0 2 legal: proof: d4 g5 f4 e5 fxg5 b6 dxe5 Bb7 a4 Bc5 a5 Bf8 a6 Bc8 g4 h5 b4 Bh6 g6 Bg7 g5 Bf8 Ra3 Qf6 Rg3 Qc6 Rg4 Qb7 axb7 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 h4 d5 e6 a5 e7 a4 e8Q+ Be7 c3 g3 h5 g2 h6 d4 g7 d3 h7 d2 g6 a3 Qc6+ Ke3 Rh5 a2 Ba3 a1Q Qc5+ Ke4 Nh3 g1B Nf4 Ra6 Nd3 Bg4 Bg2+ Bf3 e3 Nc6 b8N Nf6 g8Q Ne5 g7 Bh2 Qg1 d1Q Qd8 Nd5 g8N Nc4 Nc6 Qd2 Na5 Qf2 Nh6 Qfb2 Nf5 Rg8 h8B Nf4 Bg7 Re8 Kc6 Bf8 Kb7 Nd2 Bh1 Ra8 Rg5 Rb8+ Ka7 Ne6 Rh5 Bg2 Rg5 Kf3 e4 Qaa2 e5 Qc4 Ne3 Qg4 Rh5 Ng5 e6 Be5 e7 Qc8 Nd1 Bd4 N3f2 Ke2 Nd3 Bb7 Bg2 Ba6 Ba8 c6 Be5 Bh6 Bg7 Rg8 e8N Kf3 Nf6 Bb7 Nh7 Re8 Bf6 Bg7 Be5 Bh8 Bf6 Re4 Bg7 Nc4 Nd2+ Ke2 Ndb3 Kf3 Qc7 Nd2 Q7e7 Qg4 Qc7 Rg8 Qd8 Qc8 Qcf8 Ne6 Rb5 Ng5 Qc5 Nh3 Bh6 Rg2 Bg7 Ng5
1B6/1RRB2rp/p1Rb1K2/Q1Q1R2n/P6b/bBRrPpkb/1Q5n/1N5q w - - 0 1 illegal: No possible last move
K2Q1R1n/B4p1k/RQ2R1nn/p1p1pR1N/P5bN/3rPN2/7b/Rq2Qr2 w - - 0 2 legal: proof: f4 g5 fxg5 h5 g4 c5 gxh5 Rh6 b4 Nf6 bxc5 Ng8 c6 Rh8 c4 b6 c5 Bh6 c7 Bf8 c6 Rh7 Bg2 Ba6 c8N Rh6 c7 Rh8 Bc6 dxc6 Kf2 e5 Kf3 b5 Ke4 b4 d4 b3 a4 b2 h4 Qd7 h6 Ne7 d5 Qh3 h7 Qd7 g6 Bb5 h5 a5 d6 Rg8 h8R Nf5 h6 Ng7 h7 Ra6 Rh5 Qe7 Nh3 Ra8 Qe1 Nf5 g7 Nd7 Nd2 b1N Nf3 Nb8 Be3 Nh6 Rf5 Bc4 Ba7 c5 e3 Nd7 Nf4 Be2 Kd5 Nc3+ Kc6 Nd5 Nh5 Nf4 Kb7 Qd8 Ne7 Ng6 c8Q Bd1 Nd4 Bg4 Qc7 Rc8 Qb8 Qb6+ Ka8 Qb1 Nf3 Rd8 Qh1 Nf4 Ng6 Be7 Qd1 Nf8 Qe1 Bg5 Ngh4 N4g6 d7+ Ke7 Nf6 Bf4 Nh5 Re8 d8R Bh2 Rd6 Rd8 Ra6 Rd3 Qbb4 Nf4 Qb6 N8g6+ Bb8 Rgd8 Rf8 Nh8 g8Q R8d5 Ba7 Nfg6 Rc8 Rd7 Rc6 Rd1 Qc8 R7d3 Qd7+ Kf8 Re6 Nf4 Ng3 Kg7 Qdd8 Nhg6 h8R Rc1 Rf8 Nh8 Nd2 Nfg6 Nh5+ Kh7 Ndf3 Rcd1 Qe2 Rh1 Qe1 Rf1
3Qr2k/2p1p2q/p1PBRnBB/1B2q2b/p1R1P1q1/R1QB3N/1Qr5/2K3b1 w - - 0 1 illegal: No proof kernel
Q1BQ4/2p1Qqq1/b3qp1p/1r1pkNQ1/RQn5/4K1Nn/r1PP4/1N3R1R w - - 0 1 legal: proof: f4 b5 a4 e6 axb5 e5 fxe5 g5 b3 Qf6 Bb2 Qe7 Bd4 Qd8 h4 Bg7 g4 Bh6 Be3 Nf6 Bf4 gxf4 g5 Ng8 g6 Bg5 hxg5 Kf8 Ra4 Ke7 Ra1 Ke8 Kf2 Ke7 e4 Ke6 b6 d5 b4 a5 g7 f3 b5 f6 g6 h6 b7 a4 b6 a3 Qe1 a2 Bh3+ Ke7 e6 Kd6 e5+ Kc6 e7 Qd7 e8Q Ra6 e6 Kd6 e7 Qa4 Ke3 f2 Ne2 f1Q Ng3 Nd7 b8Q Qf5 b7 Ne5 Qa8 Qe6 b8Q Qad7 Qd8 Rb6 e8R Rb5 Bg4 Ne7 g8N Ba6 g7 N7g6 Ne7 Nf4 g8Q Nh3 Qg5 Rg8 Rf8 Qf7 Nef5+ Ke6 Qbb7 Nc4+ Ke2 Ke5 Rf1 Na3 Ke3 Qde6 Qe2 Ra5 Qb4 Rb5 Qec4 Rh8 Qbe7 Rg8 Qcb4 Rh8 Nc3 Rg8 Rae1 a1Q Rh1 Qc1 Nb1 Qd1 Ref1 Rh8 Bh5 Qg7 Be8 Qh5 Bd7 Qhf7 Rg8 Qgf8 Rg6 Q8g7 Bc8 Re8 Qh5 Rh8 Rg4 Rf8 Qg5 Re8 Qbc5 Rf8 Ra4 Nc4+ Kd3 Rh8 Qb4 Rh7 Bb7 Qfg8 Qdd7 Q8f8 Ra1 Qff7 Qae8 Rh8 Qc6 Na3 Ke3 Rf8 Q8d7 Ra8 Bc8 Bb7 Qdd8 Raa5 Ra2 Ba6 Qa8 Nc4+ Kd3 Ra3+ Ke2 Rb3 Ra4 Rb2 Kd3 Ra2 Ke2 Nb2 Ke3 Nc4+
krQ3N1/rp2bR2/1PRR1Nbn/p6K/P4p1Q/4p2p/Q2BRNp1/1q5R w - - 0 1 illegal: No proof kernel
4nr2/2rrPB2/2R3q1/bK1N2Nn/1P1N3n/Q6N/2rr1BN1/1qB2kNN w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 f5 fxe5 h5 a4 f4 axb5 Nh6 g4 Bf5 gxf5 Ng8 Ra3 Qc8 Rg3 Qd8 Rg4 hxg4 e4 Ke7 Ke2 g5 Kd3 c5 Kc4 a5 d4 f3 h4 g3 h5 g2 b6 f2 f6+ Kd7 b7 g4 e6+ Kd6 f7 g3 e5+ Kc7 e7 Kb6 e8N a4 e6 a3 d6 a2 d5 a1N h6 Nf6 d7 Ra2 h7 Rd2 d6 Nb3 Qf3 Na6 b8N Be7 f8B Nc7 Ng7 Qe8 d8N Nh5 d7 Nd4 Nc3 Nf5 Nbc6 Nh4 Nf5 Qg6 Nf7 Bd8 Ng5 Ne8 Ncd4 Ka6 e7 Ba5 Bg7 Rf8 h8N Kb6 Be2 f1R d8N Rf2 N8e6 Rc2 Bf1 Rfd2 Nf4 Ka6 Nhf7 Kb6 Nge2 g1Q Ngh3 g2 Nfg3 Ka6 Rh2 Qh1 Be5 g1R Nfg5 Kb6 Bg2 Rgd1 Neg1 Ka6 Qd3 Kb6 Bd5 Ka6 Kb3+ c4+ Ka4 Qhe4 Ng2 Qe1 Ncb5 c3 Bf7 Qf1 Nh1 Kb6 Nde6 Kc6 Qg3 Kd5 Nbc7+ Kc4 Bd4 Qe1 Be3 Kd3 Nd5 Qf1 Kb5 Qff5 N1f3 Ke2 Nfg1+ Kf1 Bf2 Qe4 Nb6 Rd7 Nd4 Rdd2 Nd5 Qe1 Bb2 Qb1 Bc1 Rb2 Qe3 c2 Qa3 Ra2 Nhf4 Rb2 Rh3 Ra2 Rc3 Rb2 Nfh3 Ra2 Bb2 c1R Rc6 Rc4 Bc1 Rac2 Rb6 Rc8 Rc6 Rcc7
3bBN1n/1KB1Bn1B/7B/4N1BP/1qn3PQ/2rr2q1/1RpN2n1/B1k4q w - - 0 1 legal: proof: e4 d5 f4 Kd7 c4 b5 cxd5 g5 fxg5 b4 d6 Ke6 d7 b3 axb3 Bg7 b4 Kd6 b5 Bf8 b4 Ke6 d4 h5 d5+ Ke5 Ra3 h4 Rg3 Bb7 d6 Bd5 exd5 Kf5 Ra3 Kg6 g4 Rh7 Re3 Rh8 Rg3 hxg3 Kd2 a5 Ke3 c5 Ke4 e5 h4 f5+ Kd3 e4+ Kc4 e3 b6 f4 Kb5 e2 b7 e1N Qf3 a4 Rh2 a3 Qf2 a2 Nf3 a1Q Nbd2 Qe7 Kb6 g2 d8B g1Q b5 c4 d7 c3 d6 Nh6 Bc7 Qg3 d8B Ng2 d7 Qb4 Be7 Ra3 d8B Nc6 b8B Ne5 Kb7 Nef7 b6 Bg7 Qe1 Bf6 Bb5 Rf8 Qf2 Nh8 Be8+ N6f7 Bb2 Qh1 Ba1 Ra5 Qe1 Rd5 Qf2 Rd3 h5+ Kh7 g6+ Kh6 Ne5 Kg5 g7 f3 g8B Kf4 Qe1 f2 Bh7 f1N Ba7 Nfe3 Bab8 Qh3 Qh4 Nc4 Ba7 Ke3 Bab8 Bg7 Bg5+ Ke2 Bde7 Kd1 Bh6 Kc2 Bcd8 Qe3 Bbc7 Qg3 Beg5 Bf6 Be7 Qa5 Kb8 Qb5 b7 Qb4 Kc8 Kc1 b8N Rg8 Nbd7 Rg7 Nf8 Rg6 Bed6 Bd8 Bc5 Rc6 Bce7 Qc5 Kb7 c2 Rh3 Qgf2 Rf3 Qg3 Rf6 Qa3 Re6 Rc5 Rb6 Qb4 Rb5 Rcd5 Rb6 Rc3 Rb5 Rdd3 Rb6 Qa5 Rb2 Qb4+
1r6/b3qB2/2bR1pR1/k1rP2R1/4b1RK/1PN1RBR1/3Q1q1B/nRb3q1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Na6 Na3 Bc8 Nc2 Nb8 h4 Ne7 g4 Qd7 h5 Nbc6 Ne3 Ng8 Ng2 Nce7 Nf4 gxf4 g5 Ng6 hxg6 Qd8 Kf2 Kd7 d4 c5 e4 Kc7 d6+ Kb6 d5 h5 d7 a5 g7 f3 Kg3 c4 e6 c3 b3 a4 e5 a3 e7 f6 e8B f2 g6 c2 e6 a2 e7 Ra5 Rh4 Ba6 Bf4 c1Q Bg2 f1Q Qd2 Bb7 Bf7 Nh6 g8R Bc6 e8R Qe7 d8R Ng4 g7 Ne3 Rb1 a1B Rd6 Nc2 Bf3 Bb2 Ne2 Na1 Nc3 Qf2+ Kh3 Qh1+ Bh2 Bc1 Rg4 h4 Rg3 Qhg1 Kg4 Kc5 b6 Kb4 b7 Rc5 b8R+ Ka5 Rb4 h3 Rd4 Qa7 Re3 Be7 Ra8 Rb8 g8R Bd8 Kh5 Bb6 Rh4 Re8 Rad8 Qe7 Rhg4 Ba7 R8g6 Rg8 R8d7 Rb8 Kh4 Qh1 Bg1 h2 Rd8 Qhg2 Rdg8 h1B Bh2 Qgg1 R6g5 Bg2 R8g6 Bh1 Bd1 Be4 Be2 Qd8 Bf3 Qe7
1K3rN1/RP1QnN1q/1NR1np2/2N2NB1/6k1/P3r3/bN1n2p1/1R1q1rN1 w - - 0 1 legal: proof: f4 h5 b4 b5 g4 e5 gxh5 a5 bxa5 b4 fxe5 b3 c3 Be7 Bg2 Bb4 Bc6 dxc6 cxb4 c5 Kf1 c4 Kf2 Ne7 Ke1 Ng8 h4 Ke7 Kf2 Ke6 Ke3 Kf5 d4 g5 h6 c5 e6 c3 e7 c4 e8N g4 h5 b2 d5 c2 Kd4 g3 Kc5 g2 e4+ Ke5 h7 c3 b5 Qe7+ Kb6 Bf5 d6 Bh3 h6 Nf6 d7 Ra7 d8N Qa3 a6 Re7 a7 Bc8 a8N Nc6 Bg5 c1N Ne6 c2 Nc3 b1Q Nc5 Nb4 Ng7 Ne2 N3a4 c1R Nb2 Rd8 h8R Rc4 h7 Nd7+ Kc7 Ng3 b6 Qc1 b7 Rf8 Nb6 Nc6 Nf5 Qd3 a3 Rc2 Rh6 Rf2 Rb1 Rf1 Rg8 Re6 h8N Ne7 Qd2 Qd1 Rhg6 Nf6 Kb8 Nfh5 Rf6 Q3c2 Qd7 Ng7 Rh6 Rd6 Rg6 Rd3 Rc6 Ne6 Rg6 Re3 Rh6 Nf4 Rhd6 Qcd3 Rd4 Ne6 Ra4 Q3c2 Ra7 Qcd3 Bh4 Kf4 e5 Kg4 Bg5 Ng7 e6 Ne4 Na6 Nd2 Nc5 Ng6 e7 Ne6 e8N Ne7 Ned6 f6 Nhf7 Ng8 Ne7 Qh7 Nef5 Ne7 N7h6+ Kh5 Ng8 Kg4 Qd8 Bd7 Nf7 Be8 Rc7 Bb5 Rc6 Bc4 Qe8 Ba2 Qd8 Nc8 Qd7 Ne7+
1k1BB3/p4NP1/r3pB1Q/nr1B1R2/B1q3n1/3nRB1B/bn2P2n/4K1R1 w - - 0 1 legal: proof: b4 g5 d4 c5 dxc5 b5 f4 Bg7 fxg5 Bf6 a4 Qb6 axb5 Bg7 c4 Bb2 c6 Bg7 c5 Qd8 c7 Bf8 g4 h6 g6 Na6 c6 Bg7 Nd2 Nb8 Ne4 Bd4 Ng5 Bc5 bxc5 Nf6 Nh7 Ng8 g5 h5 Nf6+ Kf8 Ng4 hxg4 Ra4 Ke8 Ra3 Nh6 Ra1 Ng8 h4 d5 g7 f5 g6 d4 h5 f4 h6 d3 h7 g3 b6 g2 b7 f3 Ra3 Qd6 Qd2 Qf4 Nh3 g1N Bg2 Na6 b8R Qg5 Rb5 Qg4 Qh6 Nb8 Bg5 Be6 c8B Kd8 Bd7 Kc7 Be8 Nf6 g8B Ba2 Bd5 Qc4 Rba5 Rf8 h8B Ng4 Bhf6 Rf7 g7 f2+ Kd1 f1N Ke1 Nfh2 Bgf3 Kc8 c7 Nc6 Bh4 Rb8 Ng5 Nh3 Rg1 Rf8 Nf7 Nhf2 Bhg5 Kb7 c8B+ Kc7 Bcd7 Rb5 Bh4 Kb8 Rb3 Nd4 Rc3 Nb3 c6 Rh8 Qe3 Rh5 Qh6 Rb6 Rc5 Na5 Ra3 Ra6 Rc3 Ne5 Bh3 e6 c7+ Kc8 Bd8 Nfg4 Bhf6 d2+ Kd1 Rb6 Re3 Nd3 Rb5 Rc6 Rc5 Kb7 c8B+ Kb8 Bcd7 Ra6 Ba4 Re5 Bb7 Rg5 Rf5 Rh5 Rf4 Rc5 Bbd5 Rb5 Rf5 Qf4 Kc2 d1N Kd2 N1b2 Nh8 Nb4 Ke1 Qc4 Nf7 N4d3+
2kB2B1/2p1pbr1/r1Bb1B1r/2PbB1B1/1KB1N2P/3qR3/rN2Nn1n/3Q4 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Bc8 fxg5 h5 g4 Bh6 g6 Bf8 b4 Bh6 g5 Bf8 Ra3 Bh6 Rg3 Bf8 Rg4 hxg4 c4 Kd7 h4 f5 d4 a5 Kd2 f4 Kc3 g3 g7 a4 d6 g2 d5 a3 g6 a2 b6 a1R b7 f3 b5 f2 b6 R1a3+ Kb4 R8a5 Nd2 Ra7 Rh3 Rc3 Ne4 Raa3 Bg5 Ra5 Ne2 g1R Bg2 f1B Re3 Nh6 g8B Qe8 g7 Ra8 Be6+ Kd8 g8B Nd7 b8B Nc5 b7 Rc2 Ba7 Ng4 b8B Bb7 Bf3 Nb3 Bd4 Ra6 Be5 Rca2 Ba7 Nf2 Bad4 Bg7 c5 Nd2 Bef7 Kc8 d7+ Kb8 d8N Qd7 d6 Bd5 Bef6 Kc8 Nc6 Rh6 Na5 Rg3 Bg2 Nf3 Bde5 Nh2 Nc4 Qh3 Nb2 Bh8 Bgf4 Rg7 Bh1 Bg2 B4g5 Bb3 Bc4 Qf3 Bb5 Bf7 Bc4 Qf5 Nd2 Bgd5 d7+ Kb7 d8B Qd3 Be4 Kc8 Bg3 Bde6 Bc6 Bd5 Ne4 Rgh7 Bc3 Be5 Bd4 Bf4 Bdf6 Bd6 Bge5 Rg7
B1N2r2/4B1R1/B1nb3q/3B1P2/kB1n1b1b/2BKBb1Q/1P2nQ2/1n1q2N1 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bb7 f6 Bc8 f5 Ke8 Ra4 Bf8 h4 a6 g4 Bh6 Rf4 gxf4 g5 Bg7 g6 Bf8 Ke2 a5 Kf2 Ra6 Ke1 Rc6 Qa4 Rc3 Qb3 Rg3 Qd1 Rg5 hxg5 Be6 Nh3 Bd7 Ng1 Bc8 Ke2 Kd7 d4 c5 d6 e5 b6 Kc6 g7 Kb5 d7 h5 d5 f3+ Kd2+ c4 d6 e4 g6 e3+ Kc2 h4 b7 a4 f7 h3 Kc3 e2 Bh6 e1B+ Nd2 a3 Be3 a2 Qe2 a1N Qf2 Ne7 g8B h2 g7 Nbc6 b8B Nc2 Bg2 Qb6 d8B Na3 d7 Bb7 Be5 Nd4 Bf6 Nec6 Bde7 Qa6 d8Q Ka4 Qd6 Qb6 Qdg3 Ba8 Bb4 Bd6 f8B Qd8 Be6 Qd7 B8e7 Rf8 g8B Qd8 Qf1 f2 Bc8 Qd7 Qd3 f1N Qf2 Ng3 B8d5 Qe6 Bh8 Qh6 Ba6 Bb7 Qfe2 Bf2 Ne4 Ba8 Qe1 Nge2+ Kd2 Bh4 Qf2 Be5 Nd6 c3+ Ke1 c2 Kd2 Bf4 Nc8 Bd6 Qc3 c1B+ Kd3 Nb1 Bf4 Ne5+ Ke4 Qe6 Bdb7 Nc2 Nf3 Rf6 Rg1 h1Q Qce3 Ng6+ Kd3 Rf8 Bhc3 Ncd4 Bh6 Nh8 Bhg5 Nf7 Bf4 Qh6 Be4 Qh3 Bh1 Nd8 Rg7 Bd5 Ng1 Qf1 Qh3 Qd1+ Bfd2 Bf7 Beg2 Bh5 Ba8 N8c6 Be4 Bf3 Bd5 Qb3 Be1 Be3 Bd2 Bef4 Be3 Qd1+
b1B1R3/1B2r1Q1/Bnq1p1p1/BNrB4/Q1B1B1r1/3r1r1N/3PP1b1/3K3k w - - 0 1 illegal: No proof kernel
3K4/2r4P/k2B3p/N1Q3Q1/1nr2Q2/r1RQ2Pq/BrQ1pb1Q/r1QbR3 w - - 0 1 illegal: No proof kernel
QqBQQ1b1/Pqpp1r2/6k1/1K6/2QQ4/1R1qN1q1/n1Pbr3/B1QQ1R2 w - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 a5 fxg5 a4 h4 a3 bxa3 Ne7 a4 Ng8 a5 Bg7 Nc3 Bh6 Nb1 Bf8 g4 Bh6 g6 Bg7 h5 Bf8 g5 Nc6 h6 Nce7 Nh3 Nf5 Ng1 Ng7 hxg7 Qe7 Bf4 Qf6 Bc1 Qd8 Kd2 b5 Kc3 f5 e4 h5 a4 f4 e6 b4+ Kc4 h4 a6 b3 a5 f3 a7 f2 a6 h3 e7 b2 e5 h2 Ra3 Rh6 Rb3 Rh3 Nd2 b1Q Ngf3 Rb8 a8Q Nh6 g8Q Bb7 a7 Nf5 g7 Qc8 g6 Bc6 Qh8 Nh6 g8Q Rb6 g7 Nf5 Nh4 Re3 Bb2 Qa1 Ne4 Ng3 Nc5 Ne2 Nb7 Nc1 Ng2 Qa3 Ba1 Re2 Ne3 Qb8 Qgd5 Qd6 g8Q Na2 Q5d4 Bf3 Qg5 Kf7 Qhh4 Bh6 Qhe4 Qg6 e8Q+ Kg7 Rg1 h1Q Qed8 Rf6 Kb5 Rf7 e6+ Kh7 Bg2 f1Q e7 Qf2 e8Q Qg3 Q4e6 Qd3+ Qec4 Bd5 Rf1 Be6 Nf5 Bd5 Qgc1 Bd2 Ne3 Kg6 Bf3 Qc8 Nc5 Be6 Bb7 Bd5 Ba6 Qb8+ Nb7 Be6 Kc5 Bd5 Nd6 Be6 Bc8 Bd5 Qee4+ Rf5 Nb7 Bg8+ Qee5 Rf8 Qee8+ Rf7 Kb5 Qhxb7+
n1r3bk/B4B2/B1Pb2Bb/b1pPpQ2/2N5/Q1r1p2B/1BRnB3/2R2K2 w - - 0 1 illegal: No proof kernel
R4q2/BkrQ2Bp/2N2nB1/2R1b1BP/8/r2BBPB1/Qn2K3/qrb3nb w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 f5 c4 g5 cxd5 g4 Ke2 g3 Na3 Bb7 Nc4 Ba6 Ne3 Bc8 Ng4 Be6 exf5 Bd7 f3 Bc8 Nf2 gxf2 d4 Kd7 h4 c5 b4 Kc7 g4 a5 f6 e5 b6+ Kb7 h5 c4 g5 c3 f7 c2 g6 e4 d6 e3 b5 a4 d5 a3 d7 a2 g7 Qe8 d8B Ra4 d6 Qe7 d7 Qd6 Qd2 Qc5 Bg5 Nc6 d8Q Nf6 g8B Bd6 f8B Nb4 Bf7 Nd3 Bg6 Be5 Bg7 Ra3 Rh4 Bh3 Rc4 Qe7 Rc5 Qf8 Qe8 Bg2 Qd7+ Kb8 b7 Nb2 Q2d5 Bh1 Qb3 Ka7 b8B+ Ka8 Bd2 c1B b6 Rg8 Ba7 Rh8 Bh3 f1R Bhf5 Rd1 Bd3 Rg8 Rb1 a1Q Qa2 Rh8 Nh3 Rg8 Nf4 Rf1 Ne6 Rh8 Qb5 Kb7 Nd4 Rg1 Nc6 Rg8 B7h6 Rg7 Qa4 Rc7 Bg7 Nd1 Qg4 Nf2 Qd7 Nh3 Rbb5 Rg4 Ra5 Rb4 Ke1 e2 Bde3 Bcb2+ Kd2 e1N Ke2 Rb5 Bb8 Rbb3 Ra8 Bc1 Ba7 Rb1 Bdf5 Ka6 b7 Nd3 b8B Nb2 Bd3+ Kb7 Qf5 Re7 Bd6 Rc7 Qd7 Bc3 Bdf4 Be5 Bg3 Ng1+
Bq4B1/pB4b1/1n6/2Nrr1kb/n2Qp1r1/1K1P3p/PB1N1R2/Br1B1B1Q w - - 0 1 legal: proof: e4 c5 h4 d5 exd5 g5 hxg5 f5 b4 Nh6 bxc5 Qd7 Na3 Qd8 Rb1 Ng8 Rb4 Qa5 Rbh4 Qd8 Re4 fxe4 f4 Kf7 c4 Kg6 g4 h5 d6 b5 c6 e5 d7 h4 d3 b4 Kd2 h3 Kc2 e3 c7 e2 c5 e1R c6 e4 f5+ Kg7 g6 Kf6 g5+ Ke7 f6+ Ke6 g7 Kf5 f7 Bc5 f8B Bd6 g6 Na6 Nc4 Qf6 d8Q Rb8 Rh2 Re2+ Kb3 Rb6 Nf3 Qf7 Nd2 Be5 Qd4 Qe8 Na5 Nf6 g8B Rh5 g7 Kg5 Bb2 Bg4 c8B Rb5 c7 Rd5 Nb7 Rg2 Nc5 Nd7 Bb7 Nb6 Ba8 Qb8 c8B Bf3 Ba1 Rg4 Rf2 Be2 Bf7 Bf6 g8B Bg7 Bcb7 Re5 Kc2 b3+ Kc3 b2 Bb3 b1R Qc1 Rh6 Bd1 Rd6 Bb2 Rdd5 Kb3 Nb4 Bd6 Na4 Bc7 Rd8 Ba5 Nd5 Bc3 Ndb6 Qc2 Rc1 Qb1 Rdd5 Ba1 Bf3 Bcb2 Be2 Qc2 Rb1 Qc1 Bf3 Bg2 Qc7 Bc2 Rg3 Qh1 Bh5 Bd1 Rg4 Bf1 Qb8
1rN1n2q/b4Bkb/3P2NR/B3n1B1/Q1q1P3/B1KN1N1q/r2r1N2/5Bb1 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 axb5 f5 g4 e5 fxe5 d4 gxf5 d3 cxd3 Qd5 d4 Qd8 d5 Nd7 Ra3 Nb8 Rg3 Qf6 Rg2 Qd8 Rg4 hxg4 d4 Kf7 Kd2 a5 e4 c5 h4 g5 f6 g3 e6+ Kg6 b6 g4 f7 a4 e7 c4 e8B g2 d6 a3 d5 g3 h5+ Kh7 b7 a2 b5 a1B d7 Qb6 d8B Be6 h6 Ba3 f8B Bc5 Bf7 Nc6 b8N Nf6 Na6 Bad4 Qa4 Bf5 Nc3 Qb8 b6 Ne8 b7 Ba7 Nb4 Ne5 Nf3 g1R Ba5 g2 Nd1 c3+ Kc2 Qd8 b8N Rg8 Kb3 c2 Bg5 c1Q N8c6 Qc5 Nd3 Qc4+ Ka3 Kh8 Ne7 Bh7 N1f2 Qdc8 Rh2 Qh3 Nc8 Rh1 Bc5 g1Q d6 Qgg4 Bcb4 Qgh5 Bc5 Be3 Kb2 Rg1 Ba3 Rg3 Ng4 Bg1 Ngf2 Rg2 Rh1 Bf5 h7 Kg7 h8N Bh7 Ng6 Rh8 Qc2 Rf8 Nd1 Rd2 N1f2 Bg8 Rh2 Qh8 Rh1 Bh7 Rh2 Qa4 Kc3 Rb8 Qd1 Rbb2 Qb3 Ra2 Qb4 Qb5 Qa4 Qg3 Qd4 Nf6 Rh6 Qh3 Nce7 Rb8 Qa4 Ne8 Nc8 Qc4+
2B1k2r/P2nn1Pn/2QB2N1/p2nN3/4N2b/K3qrB1/2B1q2q/N2RBN2 w - - 0 1 illegal: No proof kernel
2N1k2r/1r1N3p/3R3N/1b2PN2/rrRRRN1P/5R1Q/q4Bbb/n2n1nK1 w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 d4 e3 g6 Bd3 Bg4 Bf5 d3 cxd3 Bh3 d4 Bg4 d5 Bh3 Be4 Bc8 Bf5 gxf5 Kf2 c5 d4 a5 b4 f6 g4 f4 h4 c4 e4 a4 g5 c3 d6 f3 d7+ Kf7 g6+ Ke7 g7 a3 d5 c2 e6 a2 b6 f5 b5 f4 d6+ Kf6 e7 Kf7 e8R Ra3 b7 Qa5 d8R Qa7+ b6 Nc6 b8N Qe7 d7 Na5 b7 Qe5 Be3 c1R Qb3+ Rc4 Nc6 Qd5 b8N Nf6 g8N Rb4 Na7 Ba6 Nc8 Raa4 Nd2 Bd6 Rh3 Bb5 Ne2 Ng4+ Kg1 Nf2 Nf1 Nd1 Rc1 a1R Rc4 Rb1 Nfg3 Bc7 Qc3 Nb3 Bf2 Na1 Nf5 Qd2 Re6 Qa2 Rd6 R1b2 Re8 R2b3 d8R Rb2 Nd7 R2b3 Bb6 f2+ Kh1 f1N Rf3 Rb2 Kg1 Rb1 Bf2 Bb8 Re3 f3 Rdd4 Bg3 Nf4 R1b2 Re6 R2b3 Red6 Rb1 Re8 R1b2 Ree6 R2b3 Rf6+ Ke8 e5 Rb2 Ree4 R2b3 Be3 Rb1 Ngh6 f2+ Kg2 Nd2 Qa3 f1B+ Kg1 Bg2 Bf2 Nf1 Qf3 Ba6 Qg4 Rb7 Qh3 Bb5 Rd3 Rb3 R6d4 Rb1 Rfd6 Rbb4 Rf3 Bh2+
R4qqR/4Bq2/rp1Rb1n1/r1qBR2P/2K2N1b/QP1B1B2/1R2n2k/2b4B w - - 0 1 legal: proof: g4 d5 f4 h5 gxh5 e5 fxe5 d4 b3 d3 Na3 a5 Nc4 a4 Nb2 a3 cxd3 axb2 d4 Qg5 d5 Qd8 h4 Kd7 a4 b1Q e4 g5 Ke2 f5 d4 c5 d6 Ke6 h6 b6 h7 c4 a5 c3 d7 c2 Kd3 f4 d5+ Ke7 a6 f3 d6+ Ke6 h5 f2 a7 g4 Kc4 g3 Ra2 g2 Bg5 c1B Rb2 Na6 Nh3 g1Q Bd3 f1Q Be7 Bfh6 Nf4+ Kf7 e6+ Kg7 e5 Qf8 d8R Nb4 d7 Nd5 Qd2 Qg4 Qb4 Bg5 Qa3 Kh6 Rg1 Qff3 Re1 Nc3 Re8 Qgg3 d8R Qc2 Rd6 Bh4 Re4 Qcf2 Re3 Ne2 Red8 Rb8 a8B Qgg1 Bc6 Ra8 Bd5 Ra5 Re4 Bd7 Ra8 Qgg7 Re3 Q3g3 Bh1 Qgf6 Bf3 Kg5 Bd5 Kg4 Re4 Nh6 Re3 Rg8 h8R Nf7 Bh1 Ra6 Bd8 Ba4 e7 Rg5 e8B Bd7 e6 Rga5 e7 Bc8 Bec6 Be6+ Bcd5 Ne5+ Kb4 Q6f7 Re4 Ng6 Kc4 Qgg1 Re5 Kg3 e8B Qfg2 Be7 Kh2 Bc6 Q1f2 Kb4 Qfg1 Bf3 Qg4 Rg5 Ne5 Bcd5 Q4g2 Rf5 Qgg8 Rg5 Ng6 Re5 Qf2 Kc4 Qc5+
2BR4/ppR4q/1nrRPBB1/nR3qb1/P1kN2bQ/5B1R/2rn2K1/4B1q1 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 Qe7 Qd2 Qf6 Qd1 Qd8 g4 h6 g6 Qc7 Nc3 Qb6 Ne4 Qd8 g5 h5 Nf2 Ne7 Ng4 hxg4 Be3 Ng8 Bd2 Ke7 Bc1 Ke8 Kf2 Ke7 a4 Ke6 e4 d5 h4 f5 c4 g3+ Kg2 f4 h5 d4 g7 d3 h6 d2 g6 Qh4 h7 Qf6 c6 Qh4 c7 Na6 c5 Qh5 c6 Nc5 Ne2 Be7 Rh3 Bd8 Nd4+ Ke7 e6 Kd6 e5+ Kd5 e7 Qf5 e8B Ne7 g8R Nd7 g7 Nb6 Qh5 d1Q Bg6 Qdd3 Qh4 Kc4 Rb1 Rb8 Rb5 f3+ Kh1 f2 Bg2 f1N Bf3 Qde4 Bd2 g2+ Kg1 Be6 Be1 Nd2 c8B Bd7 c7 Nc6 Re8 Bg5 g8R Na5 Rd8 Be6 Rd6 Qd3 Bd7 Rc8 Rd8 Rf8 h8B Rf6 Bf7 Qh7 Bg6 Bg4 e6 Qf5 Kh2 Rf7 Bf6 Rf8 Kg3 g1Q+ Bg2 Qe3+ Bf3 Rf7 Kg2 Rg7 Bdc6 Ra8 c8R Rc7 Bd7 Rc6 Rc7 Rc8 Bg3 Kd3 Be1 Rc2 Rcc5 Rc7 Bc8 Rc6 Rcd5 Kc3 R8d7 Kc4 Rc7 Qg8 Rd8 Qh7 R5d6 Qg1+
R2B3R/1n1n3r/4R2N/1n3NQR/p4p1N/p1r1rP2/4bP1b/k1q1KRNN w - - 0 1 illegal: No proof kernel
1NR5/4n1Nq/N2qQ2p/3pP1R1/3RBN2/2rrb1p1/k1b2nPK/1q2R1RN w - - 0 1 illegal: No possible last move, all moves rejected
b1qR4/6pK/1r2Rp2/BR1nBBb1/3npRB1/b2BkPR1/q1Q1PN2/r7 w - - 1 2 legal: proof: d4 b5 c4 d5 a4 c5 axb5 h5 g4 Bd7 gxh5 Qc8 Na3 Bh3 dxc5 Qd7 c6 Qd8 c5 Bc8 Nc4 dxc4 b4 e5 h4 Ke7 h6 Kf6 h7 Kf5 c7 Ke4 f3+ Kf5 Kf2 a5 Kg3 c3 c6 e4 h5 a4 b6 c2 b5 a3 h6 a2 b7 f6 Kh4 Qe8 b6 Qe7 Kh5 Qb4 Bh3+ Ke5 Kg6 Ra3 Bg4 Be6 c8B Ra6 c7 Bc4 Nh3 Nc6 b8B Qe7 b7 Bd3 Nf2 Kd4 Rh4 Qd8 Bcf5 Qd7 c8B Ra3 Be5+ Kd5 b8R Nd4 Bd2 c1B Ba5 Bg5 Qc2 Bc4 Ba6 Qc8 Rg1 a1Q Rg3 Qa2 Bb5 Bb3 Bd3 Ba4 Rb1 Bc6 Rb5+ Bc5 Bh3 Rb3 Rf4 Ba8 Bhg4 Ne7+ Kh5 Rg8 h8R Rb1 h7 Re8 Rf8 Ra1 h8R Rd8 Rfg8 Rd6 Re8 Rb6 Rhf8 Ng8 Re6 Ne7 Rb2 Ba3 Rh8 Nec6 Kg6 Nb4 Kh7 Rb8 Qa4 Rb6 Rd8+ Kc5 Bc2 Kc4 Bd3+ Kc3 Rb1 Kd2 Qc2+ Ke3 Rb3 Nd5 Rb1 Rb7 Rb5 Rb6
2rb2q1/p1n2p1Q/R1B5/2N1Rq2/NK2Rn2/PR1P1N1R/kN3Np1/n3rb2 w - - 0 1 legal: proof: e4 d5 exd5 c5 f4 g5 fxg5 Bh6 b4 Bg7 bxc5 Bf8 g4 h6 g6 Qa5 g7 Qa3 g5 Qa6 g6 Qd6 Bb2 Qd7 Bf6 Qd8 Bg5 hxg5 c4 Kd7 h4 b5 h5 e5 d3 g4 Kd2 g3 Kc3 e4 c6+ Kd6 c5+ Ke5 h6 e3 d6 Kd5 d7 e2 h7 e1Q+ Nd2 Nh6 g8R Qe4 c7 Qf5 g7 Bd6 c6 Be5+ Kb4 Bb7 c8R Kd4 c7 Qf3 Nc4 Qg5 d8N Ng4 Bg2 Nf6 Rh5 Qff5 Bc6 g2 Rh3 Nh5 Re8 Nf4 g8N Bf6 Nh6 Qg8 Re5 Bg5 Qh5 Na6+ Kb3 b4 Nb2 Rb8 Ng4 Bf6 Ka4 Kc3 Ne6 b3 Re8 Bd8 c8N Nc7 Nb6 Rc8 Nf2 Ba8 a3 Kc2 Ra2 Kb1 Nc5 Bb7 Nf3 Ba8 Nbd1 b2 Kb4 Bb7 Nba4 Ba8 Bd7 Bd5 Bc6 Bb3 Ne3 Bd1 Nc4 Be2 Re4 Bf1 R8e5 Qg7 Qh6 Re8 h8R Qg8 Qg6 Kc1 Qh5 b1N Ncb2 Nd2 Rh6 Kb1 Rg6 Nb3 Qh7 Kc1 Ra1+ Kc2 Rb1 Na1 Nbd1 Re6 Rb3 Re8 Ndb2 Kb1 Bb7 Ka2 Ra6 Re6 Ba8 Rg6 Bc6 Rg3 Ng1 Re3 Nf3 Re1
r1n5/1NQPpP2/2p1K1R1/2r1n1n1/3N3p/4NNNk/1R5N/BQnQ4 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 a6 b6 Qd7 b5 Qd6 b7 Qb4 b6 Qa3 Bb5+ axb5 f4 Qa7 bxa7 g5 h3 Bh6 f6 Bg4 g3 Bf3 f5 g4 Qc2 Be3 Qd1 Bf4 gxf4 g3 Ra6 Nc6 Ra1 Bg4 hxg4 Nb8 Ke2 Kd7 Kd3 h5 Kd4 c6 Ke5 b4 d4 b3 f7 h4 f8Q g2 g5 b2 d6 Nf6 g6 Na6 b8Q Ne8 f6 Nac7 d5 Ng7 f7 Nh5 g7 Ng3 g8N Nf1 f5 Nd2 f6 Ne6 Nc3 b1N Ra2 Nd8 Nce2 Nf1 Nh6 Ng3 Ng4 Nh5 Rb2 Rg8 Nf3 g1N Ngh2 Nf4 Ng3 Nge2 Rg1 Rg6 Qg7 Na3 f8N+ Ke8 Qh7 Nh5 Qc7 Rg7 d7+ Kf7 d6 Nb7 Ne6 Nhf4 Qb1 Rh7 Ned4 Nh3 Rg2 Ng5 d8N+ Ke8 Kf5 Nc4 d7+ Kf8 f7 Kg7 Bd2 Kh6 Bc3 Ne5 Rg1 Nc1 Rgg2 Ne4 Ke6 Nbd6 Nb7 Nc8 Rg1 Rg7 Rgg2 Rg5 Rg1 Rb8 a8N Kg6 Nb6 Ra8 Nd5 Rf5 Nd2 Kg5 Ne3 Kf4 Nd2f3 Rg5 Ngf5 Rh5 Rg6 Rg5 Nfd6 Kg3 N6f5+ Kh3 Ng3 Ned3 Re2 Rc5 Ba1 Ne5 Rb2 Ng5+
rrnBKr1k/4B2b/4n1P1/3B4/1nRN2QR/R1Q1P1q1/B3nBb1/3B2n1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bh3 Na3 Bc8 h4 Qe7 g4 Qd6 Nc4 Ke7 Ne3 Bb7 Ng2 Bc8 Nf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ke8 Nh3 Qf6 Ng1 Qd8 g7 f5 Kf2 Kf7 Kf3 c5 d4 h5 b4 a5 b6 c4 b5 a4 e6+ Kg6 d6 Kh7 b7 h4 d5 h3 d7 c3 e7 c2 e8B h2 b6 a3 d6 a2 Bh5 Qf6 Bg2 Qf7 Be3 Na6 b8Q c1N b7 Qg6 Qc7 Nc5 b8R Ne7 Rb4 Re8 g8B+ Kh8 Bb3 Ba6 Qc8 Ne6 Qc3+ Qg7 Re4 Bd3 Rc4 Reb8 Bc5 Qe5 e3 Qg7 Ne2 Nc8 Nd4 Qg8 d8B Bb1 d7 Bc2 Rg1 h1N Rf1 Nf2 Rh1 Nh3 Bf6+ Qg7 d8B Bb1 Bce7 Ng1+ Kf2 f3 Kg3 f4+ Kg4 f2 Bd5 Bh7 g6 f1B Kf5 f3 Bh4 f2 Be2 Qh6 Kf6 Bg2 Kf7 f1R+ Ke8 Qf4 Bg4 Rf3 Bf2 Qg3 Rh4 Rf5 Qf3 Rf4 Qe4 Rf5 Bgd1 Nce2 Qg4 Rf6 Rc1 a1N Rb1 Nc2 Ra1 Rf3 Ra3 Nb4 Ba2 Rf8+
1n1NQn2/1P1Rb2k/q1R3R1/5Rn1/1R2B1rB/Q2b3R/KP1Q4/b1r1b2r w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 h5 g5 g6 Na3 Bh6 Nc4 Bg7 Ne5 Bh6 fxg6 Bf8 Ng4 hxg4 f5 Qd6 Ra6 Qd7 Ra1 Qd8 h4 c5 d4 e5 Kd2 a5 Kc2 e4 Kb1 a4 d6 e3 b6 g3 d7+ Ke7 d5 g2 h5 a3 f6+ Kd6 h6 Ke5 g7 Kf5 b7 Kg6 h7 c4 f7 e2 d6 e1R Bd3+ Re4 Nh3 g1N Qd2 c3 Nf4+ Kf5 g6 c2+ Ka2 Nf6 g8R Nc6 g7 Nd5 Ne6 Kg6 Rh5 Nc7 Rf5 Qf6 d8Q Nh3 d7 Ng5 Qe8 Be7 d8R Nb8 Rd7 Rg4 Nd8 Qa6 Be4 Nce6 Rf8 Ra7 g8R+ Kh6 Rg7 Ra8 Rfg8 Nf8 Rd4 Bd7 Rb4 Bb5 Rb1 Bd3 Rg6+ Kh5 Rc6 Ra7 Rgg6 Ra8 Qc3 Ra7 Be3 c1B Bf2 Bd2 Rd1 Be1 Qd2 Ra8 Kb3 a2 Bh4 Ne6 f8Q a1B Qg7 Nf8 Qgc3 Nbd7 Qc5 Rc8 Qa5 Nb8 Qa3 Rc7 Ka2 Rc8 Rcd6 Rc1 Rd7 Bf2 Rg1 Be1 Rc6+ Ng6 Rg3 Kh6 Rg2 Kg7 Rg3 Nf8 Rh3 Rg8 h8R Rg1 Rhh6 Rh1 Rhf6 Kh7 Rg6 Nge6 Rgf6 Rg4 Rg6 Ng5
2B1NB2/qP6/2K2Q1b/bb1P2QN/rN1N1Q2/1qbbr3/3nN3/3kNRn1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 h5 gxh5 a5 b4 Rh7 b6 Bb7 b5 Bc8 Ra4 Rh8 Rb4 axb4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 h4 g5 d4 e5+ d6 g4 f4 g3 b7 c6 f6 b3 h6 b2 d5 g2 b6 Ne7 d7 Ra4 h5 Ra3 h7 Qe8 d8Q Bg4 f5 Bg7 f7 Ra8 f8Q Nc8 h6 Ra4 f6 Bd7 f7 Nd6 Ba6 Nc4 Ne2 Kf3 Qd2 e4 Na3 b1B Nc2 e3 Qg5 g1Q Ba3 Bc3 Ne1+ Kf2 Qd4 Nd2 Qdf6+ Bbf5 Kd6 c5 Bb4 Rg8 h8N c4 h7 Bb5 Ng6 Nd7 h8N Ne5 b8N Nef3 Ngf4 Bd3 Nc6 Qb8+ Kd7 Qg3 Bc8 Qa7+ b7 Ng1 Nh5+ Qf3 Q8d6 Re8 f8N Re5 Bc5 Ba5 Nf7 c3 Ba3 c2 Ne6 c1B N6d4 Re4 Qdf4 Bc3 Neg3 e2 Nd6 Re3 Ne8 Ba5 Nec2 e1B Nge2 Bb2 Bf8 Bbc3 Kd6 Kf1 N6b4 Bf2 Na3 Ke1 Nac2+ Kd1 Ne1 Bh4 Rh2 Qg3 Rf2 Qh3 Rf1 Qf3 Qgf5 Bg5 Q5e5 Bh6 Qeg5 Qe4 Nf5 Qc4 Nfd4 Ba6 Kd7 Qb3 Kc6 Bab5+
Q1qR1rQ1/1r1Q3K/R5R1/qP2N2Q/2q1Bb2/P2n2bb/1r1Q2b1/1k2BQ2 w - - 0 1 legal: proof: e4 d5 b4 b5 g4 f5 exf5 a5 bxa5 h5 gxh5 b4 Na3 Nc6 c3 Na7 c4 Nb5 cxb5 Kd7 Nc4 dxc4 Qf3 Ke8 Qg4 Qd4 Qd1 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 Kg6 e5 h4 c5 f4 e4 h6 c3 a6 e3 a7 e2 h7 Kd3 h5 b3 h6 b2 f6 b1B f7 c2 f5 c4 f6 c3 Nf3 Qa5 Rg1 Bh3 Bg2 Rb8 a8Q Bd6 f8Q e1B f7 Bf4 Qe8 Nf6 f8Q Nd5 Qd7 Rb7 Qb4 Rhb8 h8Q Beg3 Kh7 g5 Qg8 g4 Qd6 Re8 Qf1+ Re2 Ba3 c1Q Bb4 Kc2 d4 Re8 Bh1 Rf8 Ne5 Kb2+ Be4 c2 Be1 Nb4 d5 Nd3 Qc5 Bg2 d6 Bh3 Qcf2 Bg2 a3 Ba2 Qd2 Be6 Ra2+ Kb1 Rh1 Qb2 Rh5 c1Q Rg5 Qbc2 Rg6 Qcc3 Rc2 Qc8 Rc6 Qc4 Ra6 Bh2 Kg7 g3 h7 Beh3 h8Q Bh1 Re6 g2 Qh5 g1R+ Kh7 Rg2 Rg6 Re2 Qe7 Rf2 d7 Bhg3 d8R B1g2 Qd7 Re2 Qe3 Rc2 Qd2 Rb2
1K1QBB1k/1q5B/Pb2NpB1/2B4Q/Rb3P2/1r1r1n1n/1Q2rB1q/3b1N2 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 d4 c5 dxe5 Na6 c4 Nb8 a4 Qf6 Ra2 Qe7 Rb2 Qd8 Rb4 cxb4 cxb5 Rh7 Nd2 Rh6 Nb1 Rh8 Kd2 g5 Ke3 d5 Kd4 g4 f4 b3 h4 b2 e4 g3 e6 g2 Ke5 d4 h6 d3 h7 d2 b6 Bb7 a6 Ke7 a7 Bc6 a5 Bb7 h5 Qe8 h6 Bc8 b7 Bd7 a6 Qd8 Qh5 d1Q Bd3 Qe2 Nh3 g1B Ng5 Qb6 Nd2 b1R Nf1 Qbe3 Ba3+ Ke8 e7 Qd1 Kd6 Qd4+ Kc7 Qg7 e5 Ba4 Bc5 Rb3 Ne6 Nd7 b8B Ngf6 Kc8 Rg8 h8Q Qe2 h7 Qh2 Bf5 Rd3 Kb7 Bc2 Bbd6 Rb8+ Kc7 Bd1 a8Q Qgg2 Qg7 Be3 h8B Ne4 Bh7 Ng5 Qf6 Bg1 Qb7 Be3 Qb2 Nh3 Bg7 Bg1 Bf2 Rbb3 Bdc5 Qe4 Bh6 Rg6 Qh8 f6 Kc8 Kf7 Kc7 Bg7 Qd8 Bf8 Bg7 Nb6 Kb8 Nc4+ Qb6 Nd2 Bh6 Nf3 Bg7 Rd6 e8B+ Ke7 Bh6 Rg2 Beg6 Qc6 Bh4 Re2 Bhf2 Kd7 Bg7 Rdd3 Bh6 Be7 Bf8 Qb5 Nc7 Kd8 e6 Bd6 e7+ Kd7 Bcd4 Bb4 Bde3 Qd5 Bc5 Qf7 Ne6 Ke8 Be4 Qg6 Qd8+ Kf7 Qhd5 Qh6 Bhg6+ Kg8 e8B Qh7 Qh5 Qe7 Bh7+ Kh8 B4g6 Qg2 Rh2 Qg3 Rg2 Qh2 Rg5 Qf7 Re5 Qd7 Re4 Qg3 Bce7 Qh2 Bb6 Ba5 Ra4 Bc5 Bd6 Bcb4 Bf2 Bb6 Bdc5 Qb7+
7k/r2B3p/n1qqr3/1Nb1P3/1R5b/QrN1N3/1BnQPKb1/B3BB1B w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Kd8 b5 Ke8 Ra4 Qd8 Rb4 axb4 d4 f5 g4 Kf7 d6 Kg7 g6 c5 b7 b3 b6 f4 d5 c4 g5 c3 d7 b2 d6 f3 Qd2 c2 Nc3 b1R Nh3 Be7 Kf2 Nf6 Nf4 Ra6 Bb2 c1B Nfd5 Qf8 d8N Ra3 d7 Ra2 Nc6 Nh5 d8B Be6 Na7 Bf6 Nab5 Ng3 Ne3 Bd7 Rh4 Nc6 b8B Qd6 b7 Nf5 Ba5 Nfd4 Ba7 Nc2 b8Q Bh3 Bd4 Re8 Qa7+ Kh8 Qa6 Nb8 g7+ Kg8 Bb4 Re6 Qa3 Na6 Ba1 Bg2 Bb2 Kf7 g8B+ Kg7 g6 Kh8 Bf7 Be7 Be8 Bd8 Ba1 Rb3 Bd7 Bf6 Na4 Qc6 Bdb2 Be7 B4c3 Bc5 Rb4 Qd6 Qd4 Qc6 Be1 Qd6 Nac3 Qc6 Ned1 Bg5 Ne3 Bd8 Kg3 f2 g7+ Kg8 Qd2 Bh4+ Kf4 Kf7 g8B+ Kg7 Bf7 Kh8 Bh5 Be4 Bf3 Bd5 B1g2 f1Q Kg4 Qh1 Bf1 Qd6 Kf4 Qg2 Be4 Qg6 Bh1 Qe8 Kg4 Bg2 Kf4 Qa8 Kg4 Qac6 Kf4 Bf6 Kg3 Bh4+ Kh2 Qe4 Kg1 Nc7 Qa6 Qec6 Qa7 Be7 Kf2 Ra6 Qb6 Ra7 Qa5 Na6 Qa3 Bh4+
2Rrq1k1/1N2b1b1/p3n1N1/1Q1qn1qR/2N3NP/2P5/K1NB3Q/Nq1r1Q2 w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 f5 Rh7 g5 Rh8 Be2 Bb7 Bf3 Bd5 Bg4 hxg4 g6 Bf7 Bg5 Qc7 gxf7+ Kd8 Bh6 Kc8 Bf4 Qd8 Bc1 Kc7 Kd2 g5 Kc3 e5 Kb3 d5 c6 Kd6 c3 g3 c7 d4 c8N+ Kd5 b6 d3 b7 g4 Nh3 e4 Na3 e3 Nc4 e2 Ka2 e1B b4 g2 b5 g1Q b6 g3 Bd2 g2 N8d6 Bg3 Nf2 Bh6 f8N Qe7 f7 Qe2 f6 Be5 Ng6 Ke6 Qf1 Bg5 Ng4 Nd7 b8Q Nh6 Nb7 Rd8 f8N+ Kf7 Ne6 Kg8 Nec5 Nf8 Nb3 Nf7 h3 Bd4 Qh2 Ne5 Re1 a6 Na1 Ne6 f7+ Kh7 f8Q Be7 Q8f5 Kg8 Rb1 Ra7 Rb5 Qge3 Rc5 g1Q Rc8 Qgg2 Qg5 Qd5 Qgf5 Ng5 Qd7 Ne6 Qb5 Qg1 h4 Qge3 Rg1 Qg5 Rg3 Qee4 Rf3 Qe1 Rf7 Qee3 Rh7 Qe2 Rh5 Qe1 Nd6 Rd7 b7 Qee3 b8N Qee4 Be1 d2 Nb7 d1Q Nc6 Rd6 Nb4 Qdb1+ Ka3 Qe2 Nbc2 Qee4 Nh8 Qeg6 Bd2 Qe8 Ng6 Nc6 Qb6 Bg7 Qb5 Ne5 Bc1 Qh1 Be3 Nc5 Bc1 Rd1 Bf4 Qd5 Bd2 Qb4+ Ka2 Ne6 Qc6 Qb6 Qc5 Qb4 Qb5 Qb1+
1N1n4/1Q1B3P/b2BBPq1/1K1Bpqn1/r4Q1r/6Q1/1B4n1/1bRBN1kn w - - 0 1 illegal: No possible last move
1NN3Q1/2r3PQ/2p1qRN1/k1n4Q/b1bN1NPK/3brBr1/1N3R1b/b7 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 h4 Nc6 g4 Kd7 b3 Ke8 f5 Ne5 Bb2 Nf7 Be5 Nd6 Bf4 gxf4 Ke2 Nf7 Ke1 Ng5 hxg5 Be6 Be2 Bd7 Bf1 Bc8 Kf2 Kd7 d4 e5 d6 h5 b6 Kc6 d7 a5 f7 a4 b4 h4 f6 a3 g6 f3 b5+ Kb7 d5 c6 g7 e4 d6 h3 Kg3 h2 Nc3 e3 Ra2 f2 Be2 f1B Bf3 e2 Qc2 e1R Nge2 Ra1 Nd1 Bg2 Nd4 Rh4 Nb2 Rh7 Rf1 Qe7 d8Q h1B d7 Ra7 Qe8 Qe6 d8Q Re1 Qb1 Rh6 Qh7 Re3 Qd5 Be7 Qh5 Bd6+ Kh4 Bh2 f8N Bh3 f7 Nf6 Rf2 Nd7 Ng6 Bf1 f8N Bc4 Nf4 Nc5 N8g6 Bd3 Ra1 a2 Raf1 a1B Qeg8 Bc2 Nbd3 Ba4 Nb2 Kb8 b7 Kc7 b8N Kb6 Nd7+ Ka5 b6 Ba6 b7 Bd3 b8N Rc7 Nb6 Bc4 Bd1 Be4 Nc8 Rg3 Bf3 Bed3 Nge7 Rf6 Neg6 Rf5 Re1 Rff7 Re5 Rfd7 Rf5 Rd5 Rf7 Re5 Rf6 Re3
1Q1b4/1q2R1K1/R3QNRr/N4qB1/1R2nb2/3qPQnR/p2b2RP/k6b w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 f5 axb5 e5 fxe5 f4 Bh3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Nf6 Ra1 Ng8 Kf2 Kd7 b4 c5 d4 g5 f6 f3 Ke3 c4 Ke4 c3 Kf5 c2 Kg6 a4 b6 f2 e6+ Kd6 f7 f1Q e7 a3 e8R g3 b7 g4 b5 g2 b6 g3 Re7 Bg4 Nd2 Nd7 b8R Rh5 b7 Qf4 Qe1 Rh4 Nb3 Rh3 Nf3 g1B Nfd2 g2 Na5 Be3 Rg1 Bf3 Ra2 Bg7 f8Q Bf6 Rb2 Bh4 Kg7 a2 Rb4 Nh6 Ra8 Qf5 Ra6+ Qb6 b8R Qc6 R8b6 Nc5 Qf7 Ne4 Qf1 Bh5 Qf3 Bf4 Qe8 Ng3 Qc8 Ng4 Qg8 Be8 Qf7 Nf6 Qg8 Bd7 Qe6+ Kc7 Ne4 Qb7 Bd2 c1B Be3 Bd2 d6+ Kd8 d5 Bc6 d7 Kc7 R4b5 Bhg5 Rb4 Rh6 d8R+ Nd7 Rh1 g1Q Nf6 Qgb1 Rg1 Qbd3 Rg2 Bh4 Rh8 Bhg5 Ree8 Nc5 Rh7 Nce4 Re7+ Kb8 d6 Bd5 d7 Kc7 Bf2 Bc6 e3 Bh4 Qc4 Kd6 Qe6+ Kc5 d8Q Bd5 Qb8 Bc6 Nd5 Bhg5 Rc7 Bd8 Nf6 Ne2 Bh4 N2g3 Re7 Bd5 Rb2 Bc6 Bg5 Bd5 Nb3+ Kc4 Na5+ Kc3 R2b4 Kc2 Nb3 Kb2 Na5+ Ka1 Rd6 Rh5 Rh6 Bc6 Rg6 Rh8 Rh6 Bd5 Rh3 Rh6 Qd1+ Bc1 Re2 Qc3 Qec8 Qcc7 Ng8 Qc2 Rg6 Qd3 Nf6 Nd2 Qe6 Bh1 Rg2 Nde4 Qf3 Bd2
nB1R3Q/K1B2B1n/2R1R1bq/2Pqb2p/2rB1q2/1k1B2Q1/6P1/4BNqn w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Bh6 f6 Qd8 f5 Bf8 h4 a5 Nc3 Nc6 Nd5 Nb8 Nf4 gxf4 Rh2 Ra6 Rh3 Rd6 Rh1 Rd3 Be2 Rg3 Bf1 Rg5 hxg5 Qc7 Bc4 Qb6 Bf1 Qd8 Kd2 Kf7 Kc3 d5 Kd4 h5 c4 f3 b4 f2 g6+ Ke8 c6 e6 f7+ Ke7 Kc5 a4 g7 e5 b6 a3 b7 a2 b5 d4 c7 d3 Kb6 Kd6 f6 d2 c5+ Kd5 Ne2 Kc4 Qe1 d1N Ng3+ Kb3 Bd3 f1Q Bd2 e4 Ka7 e3 b6 Nd7 b8B e2 b7 Nf2 Rd1 Bd6 f8B Be5 f7 Ngf6 g8B Nb6 Bg7 Na8 f8Q+ Qd5 Bf7 Bf5 c8R Rg8 Bc7 Bg6 b8B a1Q+ Bda5 Qg1 Nf1 Qa4 Rh3 Qac4 Re3 Nh1 Qg3 Nh7 Be1 Qf4 Bf6 Rg7 Qh8 Qh6 Re4 Qd4 Re3 Qdf4 Rd8 Rg8 Ra1 Rf8 Ra6 Re8 Rc6 Re7 Bd2 e1Q Re2 Qef2 Be1 Qg1 Re4 Ba1 Re3 Re4 Bfe5 Rc4 Bd4 Bc3 Ree6 Bb2 Bdf2 Bg7 Bd4 Be5
b3QN1q/bB2qbB1/1nN1P1b1/1k1pP3/n4RN1/1r1nN1NK/3Q4/B1N5 w - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 g5 b4 e5 fxe5 Nf6 a4 Be7 axb5 Qa5 Ra3 Ng8 Rf3 Qd8 Rf4 Bf8 g4 gxf4 h4 a5 h5 Ra6 g5 Rg6 hxg6 Bd6 Rh2 Be7 Rh1 Bf8 Kf2 f5 Kg2 d5 c4 Kd7 e4 h5 b6 Kc6 b7 f3+ Kh3 f2 g7 a4 b5+ Kd7 c6+ Kc7 e6 Kb6 c5+ Ka5 b6 h4 c7 a3 c6 f4 g6 f3 Nd2 a2 Ba6 f1N Nb3+ Ka4 Bh6 a1Q Nc1+ Ka5 Nge2 f2 Ng3 Nd2 Rf1 Nd7 b8B Ngf6 g8Q Nb1 g7 Bb7 c8N Ng4 c7 Nge5 Na7 Nd3 c8N Qe7 Qd2+ Nc3 Nd6 Ba8 b7 Nb6 Ndf5 Kb4 Qf7 Kc5 g8N Nca4 Qh5 Rh7 Bc7 Qh8 b8N Rf7 Ne3 Rf3 Bcf4 Bg7 Nac6 Bd4 Bc8 Kb5 Be5 Bc5 Ba1 Bd4 Kh2 h3 e5 Bc5 Nd7 Bd4 Rd1 f1B Bg7 Be2 Rf1 Bd1 Qe8 Bc2 Kh1 h2 Kg2 Bc5 Nh6 h1B+ Kh3 Bd4 Ng4 Re3 Rf8 Be4 Bb7 Bg6 Rf4 Bf7 Nf8 Nd7 Nh7 Ba7 Nf5 Rf3 Nfe3 Ndb6 Qc3 Ndb2 Qd2 Bcg6 Nf1 Rb3 Nfe3 Qg8 Nf8 Nd3 Kh2 Qh7+ Kg2 Qg8 Kh3 Qh8+
1k3N1N/bp2Nn1n/2nPn1q1/3N1Q2/3Q1Q2/NRP2N2/2nrnB2/rB4K1 w - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 d5 g4 f5 e4 h5 gxh5 Na6 d4 Be6 dxc5 d4 Ra3 Ba2 Re3 Bd5 exd5 Nb8 Re4 fxe4 h4 Kd7 f4 Kc8 Kf2 e5 f5 g5 f6 d3 d6 g4 h6 d2 f7 Qd7 h7 Nh6 a6 Qe7 c3 Qg5 c6 Bg7 f8N Nf7 h5 Qg6 c7 Nc6 Nf3 e3+ Kg1 e4 h6 g3 a7 g2 a5 e2 a6 e1N Qc2 d1N Be3 Bd4 Bd3 Nb2 Na3 Na4 Bf2 e3 Qd2 e2 Qf4 Be3 Bb1 Nc5 Rh5 Rg8 h8Q Ne6 h7 Nc2 Rb5 e1N Qhd4 Rg7 h8N Rg8 Kh2 g1N Rb3 Ne2 Qf5 Ng3 Kg1 Rg7 Qdf4 Rh7 Qd4 Rh2 Qdf4 Rb8 a8Q Bc5 Qa7 Ra8 Qb6 Be3 Qbb4 Bc5 Qbd4 Ba7 Be3 Rd2 Bf2 Nd3 Rb6 Nde5 Rb3 Bc5 a7 Ng4 Nh2 Nf6 Nf3 Rb8 a8N Ba7 Nh7 Kd7 c8N Kd8 Nhg5 Nh7 Nab6 Ra8 Nd5 Kd7 Nce7 Kd8 Ng8 Kc8 Nge7+ Kb8 Nh4 Qh6 N4g6 Qh5 Nf8 Qg6 Nf3 Bb6 Nc4 Ra1 Na3 Bc5 Nf6 Ba7 Nfd5 Ne2+
RNnNbRr1/1p2b3/PK1N1b2/n7/1nb3k1/1b1N1N2/Br3P2/2QQ1N1R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Bg7 h4 Bf8 h5 Nb8 g4 Bh6 Bb2 Kf7 Bf6 Bg7 h6 Qe8 Be5 Bf8 Bg3 Qc6 Bh4 gxh4 g5 Ke8 g6 Qc3 Be2 Qb2 Bf1 Qg7 hxg7 Ra6 Qe2 Ra7 Qd1 Ra8 Ke2 Kd7 Ke3 c5 a4 h5 d4 e5 a6 h3 a7 c4 a5 c3 d6 e4 f6 Ke6 d5+ Kf5 Kd4 c2 Kc5 c1N f7 h2 Nd2 h4 Bc4 h3 Ngf3 e3 Nf1 e2 Kb6 e1B d7 Nb3 d8N Bc3 d6 Bd7 Ne6 Be7 f8N Kg4 Nf4 Be8 d7 Na6 d8N Nb4 Nd7 Bcf6 Nd3 Rh5 a6 Na5 Nb8 Re5 Bb3 Re2 Rc1 Rb2 Rc5 Bf8 Qc1 Ne7 g8Q Nec6 g7 Bd6 Qd5 Bde7 Nd7 Rb8 a8R Na7 g8N Rc8 Qd6 Rb8 Rf5 Rc8 Ng3 Rb8 Ba2 Rc8 Rf1 h1B Nb8 h2 Qd5 Bg2 Rh1 Bf1 Qb3 Be2 Nf1 Bd1 Qa4 Bb3 Nh6+ Kh3 Nhf7 Kg4 Nd6 Bc4 N1d2 Bb3 Re1 h1B Nf1 Bc4 Qad1 Bg2 Ng3 Bb3 Rh1 Bf1 Nc5 Bfb5 Nd3 B5c4 Nf1 Bef7 Ndc6 Rg8 Nd8 Bg6 Qa1 Be8 Qac1 Bg5 Rf7 Bgf6 Rf8 Nc8+
1nR1b1r1/R2pK2r/q1Q5/b5k1/b1p2nN1/2Rn1RNQ/R3P2P/B5RQ w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 g4 axb5 g3 c4 Bd6 b6 Ne7 b7 Ng8 fxg3 Qg5 g4 Qd8 g5 Bf8 g4 h5 b5 Bh6 c5 Rh7 g6 Bf8 g5 Rh8 Bh3 Qf6 Bg4 Qb6 cxb6 hxg4 Kf2 Ke7 Kg3 a5 Kf4 f5 g7 c5 e6 c4 Ke5 a4 g6 g3 Nh3 f4 Ra2 f3 Rg1 g2 Nf2 a3 Bb2 Ra6 Nc3 Rh6 Ba1 Rh4 Ng4 f2 Ne4 f1B Ng3 Nh6 g8Q Ra4 g7 Ra6 Qh7 Ra8 g8Q+ Nf7+ Kd5 Bh6 Qgg6 Bd2 Qhh5 Ne5 Qe1 Na6 b8R Ba5 Rb7 Nb8 Ra7 Ba6 b7 Nd3 b6 Bb5 Qe4 Ba4 Qc1 Nc6 b8R Rh3 Rh8 Rg8 b7 Nb8 Rh6 Rh4 Rf6 Rh3 Qh8 Rh6 Rf3 Rh7 Rc2 a2 Rc3 Rf7 Qh3 Rh7 Rh1 g1N Qe1 Nc6 b8R Bg2 Rba8 Nb8 Qb1 Rhg7 Qb6 Rf7 Qc6 Rh7 Qh5 Nh3 Rg1 Nc5 Ke5 Nf4 Qh3 Ncd3+ Kf5 Kf8 e7+ Kf7 e8R Kg7 Bb2 a1Q Rc8 Qa2 Ba1 Qa3 Rff1 Bf3 Qed5 Qa2 Kg5 Be4 Rf3 Bg6 Qe4 Be8 Kf5 Nf2 Ke5 N2d3+ Kd6 Ne1 Qb1 Ned3 Qbf1 Kg6 Qfg2 Rh6 Ke7+ Kg5 Qh1 Qb2 Rb7 Qb6 Raa7 Qa6 Rb2 Rh4 Ra2 Rh7+
4K2B/1Q4QP/8/bQ3Q1B/3bqPr1/pbQp1QRB/3n1n1r/1N1bk1N1 w - - 0 1 legal: proof: b4 b5 e4 c5 d4 h5 dxc5 e5 g4 f5 exf5 Na6 gxh5 Qb6 a4 Qc7 axb5 Nb8 Ra3 Qa5 Rd3 Qd8 Rd4 exd4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 f4 d6 h4 a4 c4 a3 b6 g4 b7 d3 c6 d2 c5 g3 h6 g2 c7 Be7 h5 Ra7 h7 Nh6 c6 Nd7 b8Q Rf8 h8Q+ Kf7 f6 Ra8 b5 Ne5 b6 Qe8 b7 Nf3 Rh3 Ng4 h6 Kg6 f7 Kf5 Bb2 Rg8 Qg7 Nf2 Be2 Bd8 Rg3 Qe7 Qf1 d1B h7 Nd2 Bf6 Ra6 f8Q Rb6 Qff7 Rb2 Bh5 Bd7 c8B Ba5 c7 Be6+ Kc6 Ke4 Qb5 d5 Qa8 d4 b8Q d3 Qb8b7 Beb3 Bh3 Qe5 Kd7+ Kd4 Qh8 Rg4 c8Q Ra2 Qfg7 Rc2 Nf3+ Ke3 Qhf8 Ke2 Ng1+ Ke1 Qc3 Qd5+ Ke8 Qd4 Qf3 Qb4 Qab7 Qe4+ Qge7 Rb2 Bh8 Ra2 Qff5 Rc2 Ne2 g1B Qee5 Nh1 Qee7 Bd4 Ng1 Nf2 Q7b6 Nh1 Qcc8 Nc4 Qbb7 Rh2 Qee5 Nd2 Qc3 Nf2 Qee7 Be5 Qg7 Bd4+
3Q2B1/NqP3b1/rrp2NQ1/2P1R1B1/BB1p4/2B2KB1/2rq4/1nkn1Qn1 w - - 0 1 legal: proof: d4 b5 a4 g5 axb5 f5 e4 c6 exf5 Bh6 d5 Qb6 d6 Qc7 dxc7 Bf8 f4 Na6 g4 Kf7 b4 Bg7 f6 Nh6 b6 Bb7 f5 Ke8 Ra3 Nb8 Rf3 Ba6 Rf4 gxf4 h3 Be2 g5 Bg4 hxg4 Ng8 Be2 Bh6 Bf1 Bf8 Ke2 Kf7 c4 d5 b5 e5 b7 a5 b6 h5 c5 a4 Nd2 e4 Rh2 e3 Ne4 h4 Kf3 a3 Re2 Nd7 b8B a2 b7 a1R Ba7 h3 b8Q h2 Qd8 h1N Bb6 Bg7 Ba5 Nf2 Bb4 Ne7 Re1 Rc8 Ne2 Rb8 Nd4 e2 Nb5 Rb6 Na7 Raa6 Bcd2 d4 Bdc3 Re8 Qc1 Nd5 g6+ Kf8 f7 Nd1 g5 Ne5+ Kg2 Nf3 Nf6 Ng1 Qa1 Bh6 Qb1 Kg7 f8B+ Kh8 Qa1 Bg7 Bd6 f3+ Kg3 f2 Be5 Nh3 Kf3 Rg8 Bg3 Re8 Bb2 N5c3 Qc1 Nb1 B2c3 Bh6 Qf4 Kg7 Qc1 Kf8 g7+ Kf7 g8B+ Kg7 Qf4 Ng1+ Kg2 Re3 g6 Rd3 Qf3 Rd2 Qd3 Rc2 Qc4 Bg5 Qf7+ Kh6 g7 Bf4 Qc4 Kg5 Qd3 Nh3 Kf3 Be5 Nd7+ Kh6 f6 Kg5 f7+ Bf6 f8B Ng1+ Ke4 Kg4 Be7 Be5 Nf6+ Kg5 Bg2 f1Q Bf3 Qh3 Bh5 Qc8 Bhf7 Qb7 Bb3 Qc8 Ba4 Qb7 Rf1 e1Q+ Qe2 Qd2 Rf5+ Kg6 Qf1 Kh6 Nd7 Kg6 Bg5 Bf6 Re5 Kh5 Bh7 Kg4 g8Q Bh8 Qg6 Bg7 Qe1 Kh3 Nf6 Kg2 Qe3 Kf1 Qf4+ Ke2 Bg8 Nb2 Qff5 Kd1 Qf2 Kc1 Qe1+ Nd1 Qf1 Ne2 Kf3 Ng1+
5r2/1q1r1N2/1p1p2RN/q1QR1B2/N1bPqq1N/NP5n/kb1R4/2QN1K2 w - - 0 1 illegal: No possible last move
q1Q3Nr/p1prP3/1R2KbR1/2Q2nN1/2Pq3k/B5R1/Rn2NR1q/R1q5 w - - 0 1 legal: proof: e4 e5 g4 b5 d4 f5 exf5 b4 dxe5 b3 f6 Bd6 axb3 Bc5 b4 Be7 b5 Bf8 f4 h5 f7+ Ke7 f5 Qe8 Be2 Kd8 Bf3 Bb7 Be2 Kc8 f6 Qd8 Bf3 Be4 Be2 Bf5 gxf5 Ba3 Bf3 Bf8 Bg4 hxg4 Kf2 d5 Ke3 Kd7 Kd4 g5 h4 g3 b4 g4 c4 g2 e6+ Kd6 e7 g3 b6 Rh7 h5 Qd7 h6 Qa4 b5 Qa5 b7 Qa6 b6 Kd7 Ke5 d4 Nf3 g1Q Ng5 d3 Nc3 g2 Rh2 d2 Qh5 d1Q Ne2 Qgf1 Ba3 Rh8 h7 Bg7 f8R Nh6 Rg8 Bf8 f7 g1Q f6 Qd2 Rg6 Bg7 f8Q Qfc1 Qc8+ Kc6 Rf2 Qh2+ Ke6 Qd4 f7 Nd7 b8R Bf6 f8N Nf5 b7 Ne5 Nd7 Nd3 Ra2 Rd8 h8R Nb2 Rhg8 Qa5 Ra1 Qac3 R8g7 Qf3 Rg8 Bh8 Nf6 Rd7 R8g7 Qfh1 Ng8 Q1g2 Nh7 Qf3 Rg3 Qfh1 R7g6 Bf6 Qe8 Qf3 Rd8 Rc8 b8R Qfh1 Rb4 Kc5 Ng5 Qa8 Kf7 Kd6 Rb6+ Ke5 Ra2 Rd5 Qd7 Rb8 Qc8 Rd6 Rf8 Rd7 Rf1 Qcc3 Rfa1 Qc1 Nf3+ Ke4 Ke6 Ke3 Qg5+ Kf2 Rf7 Ne3 Qc5 Nf5 Qa6 Rf8 Qc8 Re8 Ng5 Rf8 Nh6 Rh8 Ng8 Bg7 Nf3 Nh4 Rh3 Be5 Rf5 Bf6 Ng5+ Kg2 Rf1 Nf5 Rhf3 Qh3 Rg1+ Kh2 Rf2+ Qhg2 Ne4 Kh3 Ng5+ Kg4 Qe8 Kh5 Qc8 Qh2 Rg3 Kh4
1RB1b3/1B2K1Bq/n3q3/1Q1B2p1/2RBNbPb/Q7/1qp1P1k1/Q1qnB3 w - - 0 1 legal: proof: c4 a5 a4 b5 axb5 g5 h4 d5 cxd5 Ra6 h5 Rg6 hxg6 Be6 Na3 Bg4 Nb1 Bc8 d4 h5 f4 e5 d6 Nf6 d5 Kd7 Nd2 Bg7 Nb3 Re8 Nd4 exd4 Rb1 Bf8 Ra1 Re5 fxe5 Bg7 Kd2 c5 Kd3 h4 Kc4 h3 b4 a4 g4 a3 b6 d3 e6+ Ke8 b5 a2 e7 Kd7 b7 d2 b6 h2 Bb2 Qh8 e8B+ Kd8 d7 Ke7 d8B+ Kd6 Bd4 Qg8 Bd7 Ne4 Rb1 a1B Nh3 f5 Bg2 f4 B8f6 f3 Nf2 Nc3 Rb5 Bb2 Qa1 Na6 Rc1 h1Q Bf5 Bf8 g7 Qe6 g8B d1Q Bg7 Bd7 Rb4 Be8 b8B+ Nc7 b7 Qh7 Ba7 Qd2 b8Q Nd1 Qb5 Na6 Bf7 Bc3 Ne4+ Kc7 Bf2 Qb2 Be1 f2 Bh1 f1Q Bf3 Qeh6 Bc8 Bd6 Rc2 Bf4 d6+ Kd8 Kd5 c4 d7 Kc7 Bg2 Bce5 Rb3 c3 Bd4 Bg3 Rb4 Bh4 Rc1 Qf4 Rb1 c2 Rc4+ Nc5 Be6 Qfc1 Bg8 Bf4 Bf7 Qb6 d8Q+ Kb8 Qe7 Na6 Qea3 Ka7 Bde5 Qbe3 Kd6 Qeb3 Qd5 Kb6 Ke7 Qbe3 Qdd3 Kb5 Bd5 Qb6 Bdb7 Qe6+ Kf8 Kb6 Bd4+ Kb5 Nc5 Kb6 Bgd5 Kc7 Qdb3 Kd6 Qb5 Qc3 Qbb4 Be5 Ba8 Bh2 Rb3 Q3b2 Qba5 Be5 Rb8 Beg3 Qb5 Be5 Bg1 Bh2 Bab7 B2g3 Bh6 Ke5 Bd4+ Kf4 Bhg7 Bh2 Bec3 Kg3 Ne4+ Kg2 Be1 Qef5+ Ke7 Bf4 Qd6 Qfg6 Qda3 Qe6+
2Rq4/Nb2Nb1p/1bN1Rq1K/2Np1R2/2N1rQ2/2BPb1r1/kPNQ4/2r5 w - - 0 1 legal: proof: c4 f5 a4 b5 cxb5 g6 e4 Nh6 exf5 Kf7 f6 Ke6 f7 Ng8 b6 Nc6 Na3 Nd4 Nb1 Nb5 axb5 Kd6 g4 Bh6 f4 Bb7 h4 Bf3 g5 Bg4 f5 Bg7 f6 Bf3 Bh3 Bb7 Be6 Bf8 Bf5 gxf5 Kf2 Nh6 Ke1 Ng4 h5 Ne5 Qe2 Bc8 Qd1 Ng6 hxg6 Kd5 Nc3+ Ke6 Nb1 Kd6 Ke2 Kc5 Kf3 Kb4 Kf4 c5 d3 a5 b7 d5 b8N e6 b6 a4 b7 c4 g7 a3 g8R a2 g6 c3 Kg5 c2 g7 Kb3 Bd2 e5 Nc6 f4 b8N e4 Kh6 e3 Bc3 f3 Na7 f2 Qd2 f1B Na3 c1R Ne2 Bb7 Nc4 Bh3 Re1 Be6 Nbc6 Bc5 f8Q Bb6 f7 Rb8 Rb1 a1Q Ned4+ Ka2 Nc2 e2 Rf1 e1B Rf5 Bef2 Qb4 Be1 f8N Bf7 Ne6 Bef2 Nc5 Rc8 Re8 Rg8 Re6 Re1 Qf4 Re4 Rf1 Be3 Rc1 Re8 g8N Rc7 Rg1 Qf1 Nge7 Rg8 Rh1 Rg3 Rg1 Rf3 Rg8 Rg3 Re8 Qd7 Rc8 Qd8 Bg7 Qf3 Qd2 Qf2 Qg5 Qf4 Bc3 Qe5 Qf4 Qf6+ Ng6 Re7 N4a3 Bg1 Rd6 Re1 Nc4 R7e4 Re6 Bd4 Qg4 Rc1 Qgf4 Qe5 Nge7 Be3 N4a5 Qd4 Nc4 Qf6+
2Q1n1KB/1R2Rq2/4QP1k/n1pR2R1/2Rr1pQn/2N4r/Rp3P1q/3bN3 w - - 0 1 legal: proof: c4 a5 b4 d5 bxa5 h5 cxd5 h4 d6 e6 d7+ Ke7 g3 Kd6 gxh4 Ke7 h5 Ra6 Nc3 Ra7 Nb1 Ra8 e4 f5 d4 Nf6 e5 Ng8 d5 Kf7 d6 Be7 Bc4 Bf6 Bd5 exd5 exf6 Qe8+ Ne2 Qf8 Ng1 Qd8 Ke2 c5 Ke3 b5 Kf4 g5+ Ke5 b4 h4 d4 a4 d3 a6 d2 a5 b3 h6 Kg6 Ke6 b2 a7 g4 h5+ Kg5 Kf7 g3 h7 g2 h6 Bb7 a6 Bf3 Nc3 Ne7 Ra2 Qa5 d8Q Be2 d7 Ng6 Qe8 Bg4 d8R Nf4 Rh4 Nh5 Nf3+ Kf4 Ne1 Kg5 Qe6 g1N Rd5 Re8 h8R Qd8 h7 Nf3 Rg8+ Ng7 h8R Nc6 R8h7 Qd6 Qde2 Rad8 a8Q Na5 a7 Qe5 Qac8 Qh2 a8R Rd6 Ra7 Red8 Re5 Rd3 Re7 R8d4 Rd5 Re3 Kf8 d1Q Qc4 Kg6 Qa4 Red3 Bh6 Bh5 Re4 Nh4 Rf4 Qg4 Qd1 Qg5 Qg4 Rh3 Re4 f4 Rb7 Rdd3 Rc4 Rd4 Rgh8 Nc6 Kg8 Ne8 Rhe7 Na5 Bf8 Qg3 Bg7 Qh2 Qge2 Bf3 Rh5 Qg4 Rhe5 Qh5 Bh8 Kh6 Rg5 Bg4 Qd3 Be2 Qg3 Bd1 Qgg4 Qf7+
r1N1k3/p5p1/RQR5/q1Q1Kb2/1Nq3pQ/rNq1Q1P1/2QBQ1nP/6b1 w - - 0 1 legal: proof: c4 c5 e4 h5 a4 b5 axb5 d5 cxd5 f5 exf5 Nh6 b6 Bd7 b7 Ng8 Be2 Nc6 Bf3 Rc8 Bg4 hxg4 b8Q Nd4 Qa8 Ne2 Qxe2 Rc7 Qd1 Rc6 Ke2 e5 Kd3 c4+ Ke4 c3 f4 c2 b4 Rc4+ d4 Rc7 f6 Qc8 g3 Bc5 d6 Rh4 f7+ Kd8 f8N Ne7 f5 Nc6 d5 Rh7 f6 Be6 f7 Bf2 b5 Rh3 d7 Rh5 b6 Be1 b7 Ke7 b8Q Na5 d6+ Kf6 d8Q+ Re7 d7 Rg5 Qb2 Rg6 Ne2 Qa6 Na3 Bb4 Bd2 c1Q Qbc2 Bc5 Qb6 Bg1 d8Q Nc4 Nd4 Ne3 Nb3 Ng2 Qe2 Rg5 Qdd4 Re8 Qde3 Ke7 Nd7 Bf5+ Kd5 e4 Ke5 Qd1 Qac6 Qc1 Qh6 Ra8 Qh4 Qc4 Ra2 Qb1 Ra1 Bf2 Rc1 Bg1 Qa6 Kd8 Nb6 Ke7 Nc8+ Kd7 Qcc3 Qbd3 f8Q Rg6 Qfc5 Ke8 Qb7 Ra6 Qbb6 Ra5 Nc2 Ra3 Qeh6 e3 Nb4 Qf7 Qc2 Qfc4 Qf2 e2 Qhe3 e1Q Qf3 Ra6 Qfe2 Ra3 Nd4 Rc3 Ra6 Ra3 Nb3 Qb5 Qb1 Qf1 Rc4 Qa5 Qc2 Qc1 Rd4 Qf1 Rd6 Qc4 Rc6 Qb1 Qcd1 Qbd3 Qc2 Qdc3+
1R1R1N1Q/1R2bQK1/4R2n/2qR1npp/3n3B/R2Nnp2/n5PP/1Qbk4 w - - 1 2 legal: proof: e4 g5 d4 b5 c4 a5 cxb5 h5 b4 c5 a4 d6 f4 c4 b6 Ra6 b7 Rc6 b5 Rc5 dxc5 Rh6 Qc2 Re6 Qd1 Re5 fxe5 Bh3 Be2 Be6 Bg4 Bd7 Be6 Bc6 Bd5 e6 b6 Bb5 axb5 exd5 Qe2 a4 Qf3 Nd7 Qd1 Nb8 Kd2 Ke7 Ke3 Ke6 Kd4 f5 c6 a3 c7 a2 c8Q+ Nd7 b8R c3 b7 f4 b6 c2 Nf3 Be7 Be3 c1B Na3 Qc7 Nb5 Qc6 Ne1 f3 Bf2 Ba3 Qb1 Nh6 Qh8 Nf8 Bh4 Ng6 Nd3 Bc1 Rd8 Qc2 b8R Qc7 Bf2 Nh4 Rd1 Qa7 Rb7 N4f5+ Kc3 d4+ Kc4 Bf6 Bh4 d5+ Kc5 Be7+ Kc6 Kf7 Kd7 Kg6 Ke8 Qa5 Nc7 Qc5 Ne1 d3 e6 d2 e5 d4 Nd3 Qa3 Rd5 Qc5 Re1 d1N Re3 Bd6 e7 Nc3 Kf8 Ng3 e6 Ngf5 Nf2 d3 Re4 d2 Nd3 d1N Red4 Ng4 Kg8 Nde3 e8R Be7 Red8 Bf6 e7 Ngh6+ Kf8 Ng3 R5d6 Kf5 R4d5+ Ke4 e8Q+ Be7+ Kg7 Ngf5+ Kh7 Neg4 Ne6 Ke3 Qf7 Ke2 Nf8 Kd1 Re6 Nge3 Ra7 Ne2 b7 Ned4 b8R Ng8 Qb2 Ngh6 Rb1 a1N Ra3 Nac2 Qa2 Neg4 R1b7 Nge3 Qb1 Nb4 Kg6 Na2 Kh7 Nd6 Kg7 Nd6f5+
R4K1k/QRn1p1p1/6b1/1pR1p2q/3RBR2/n1BB2Pn/3Pr3/qQ4RN w - - 0 1 illegal: No proof kernel forced: wxDB
1Qb3r1/BK1p2kN/N1RR4/3nb3/bR1P2r1/7R/Rb1n2Pb/Qq1Rr2N w - - 0 1 illegal: No possible last move
Q3qQ2/2Qbp1b1/1B2P1k1/1b1qrn2/qN1P3n/BBq2B2/1r1BB3/2RR2K1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 g4 h6 g6 Bg7 Nc3 Bf8 Ne4 h5 g5 Rh6 Nf2 Rh8 Ng4 hxg4 Kf2 c5 d4 f5 h4 a5 e4 c4 b4 a4 g7 Kf7 b6 a3 d6 a2 e5 f4 g6+ Ke6 d7 Kf5 b7 f3 b5 c3 h5 c2 h6 Qb6 d8B Qf6 h7 Ra5 b6 Ra8 Nh3 g3+ Kg1 g2 Nf2 Qd6 Ba3 c1Q Be2 Qd5 Nd3 Bd7 Nb4 Nh6 g8B Bg7 Qf1 Qc3 Rc1 Nc6 b8B a1Q b7 Ra5 Bb6 Kg5 Bd6 Nf5 b8Q Qaa2 Qc7 f2+ Kh2 Qaa1 Be6 Rb8 h8Q Rb7 Qa8 Qaa2 Bdc5 Qac2 Bf3 Rb5 Ba5 Qa4 Bcb6 Rc5 Qe1 f1B Kg1 Bb5 Qf2 Na7 Rd1 Nh4 Beg4 Nc8 Be2 Rb8 Qf8 Nd6 Bgf3 Ndf5 Rc1 Bf6 g7 Kg6 g8B Bg7 Kh2 Rb7 Rhd1 g1Q+ Kh3 Qg4+ Kh2 Qh5 Kg1 Kg5 Be6 Qe8 Bg8 Kg6 Be6 Qe4 Bb3 Rb8 e6 Re5 Na6 Qd5 B5b4 Qcc5 Bd2 Qc3 Nb4 Rc8 Ba5 Qb2 Qb6 Rc2 Qc7 Qc3 Bb6 Rb2
1b1RnRq1/1bqb3n/2k1r3/2Np2Qq/b1B4R/1r1RKN2/RR1PN1P1/6Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 Na6 b4 Nb8 Ba3 Bh6 axb5 Ne7 b6 Ng8 b5 Bf8 Bb4 cxb4 Kf2 f5 e4 d5 c4 Kd7 b7 h5 b6 a5 c5 h4 e6+ Kc6 e7 h3 e8R f4 e5 f3 e6 a4 g6 b3 g7 a3 e7 a2 Ke3 h2 Kd3 f2 Be2 f1B Nc3 b2 Nf3 b1B+ Ke3 Bbf5 Bc4 Nf6 g8Q Ra3 Qg5 Qc7 Rd8 Nh7 e8R Bd6 Rf8 Na6 b8R Rb3 b7 Bfd7 Qc1 Bd3 Ne2 Rg8 Qg1 Rg6 Rb1 a1Q Rb2 Qe1 Ra8 Qg3 b8R Bb7 Rbc8 Nb4 Raa2 Be5 Rca8 Re6 R8a4 Na6 R4a3 Rb4 Rab3 Bc2 Rd3 Ba4 Bb3 Kb5 c6 Kc5 Bc4 Rb3 Qf4 Qg8 Qg5 Qc8 c7 Kc6 Rf6 Qb8 c8N Nc7 Nd6 Ne8 Rf8 Qc8 Ne4 Bb8 Rf4 Qc7 Rh4 Rh6 Nc5 Rd6 Qc1 Rg6 Rf1 h1Q Rf2 Qh3 Qg1 Qg4 Nh2 Qh5 Rf8 Rh6 Nf3 Re6+
1r4Bk/Nr4bp/3nqB1P/1bn5/2QKBQ2/qpQP1QRQ/qn5R/1Q6 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Bc8 fxg5 c6 b4 Ba6 b6 Bb7 Nc3 Bc8 b5 c5 Na2 Bg7 Nb4 cxb4 Rb1 Bh6 Ra1 Bf8 Kf2 a5 Ke3 e5 c4 f5 h4 Kf7 g4 Kg7 c5 e4 g6 f4+ Kd4 e3 b7 e2 c6 e1N d3 f3 g5 f2 h5 a4 d6 a3 c7 a2 b6 Nh6 d7 Ra3 Bg2 f1Q Nf3 Ra4 Ne5 Qe7 d8Q Bg4 c8Q Nd7 b8Q Qe6 b7 Ra6 Qc3 Qe7 Nc6 Ra7 Qf4 Qee2 b8Q Qe6 Bb2 Qfe2 Qdc8 Nf7 Rh2 Nc5 Be4 Rb7 Na7 Nd6 h6+ Kg8 g7 b3 Qb1 Ng2 Qf3 Ne3 Qd7 Nec4 Qbc7 Nf7 Qcf4 Nfd6 Qc8 Bh5 Qd7 Be8 Qc8 Qg6 Qch3 Qf5 Qbh1 Qg2 Rg1 Bb5 Ba1 Qb2 Rg3 Qa3 Bb2 a1Q Qb1 Q1a2 Ba1 Qe6 Bb2 Ne5 Ba1 Be7 Bb2 Bf6 Ba1 Kf7 g8B+ Kf8 g6 Nec4+ Qe5 Nb2 g7+ Ke8 Bf7+ Ke7 g8Q Bg7 Qc8 Re8 Qc4 Kf8 Bg8+ Qf6 Qcf5 Reb8 Q5f4 Nba4 Bc3 Nb2 Ba5 Qf7 Bd8 Qf5 Bf6 Qd7 Be6 Qf7 B6d5 Kg8 Be6 Kh8 B6d5 Qe8 Bg8 Nc8 Qc7 Nd6 Qa5 Qf7 Qac3 Qe6
1BQ5/2r2Rp1/1n6/QbqB1n2/3bp1b1/1N1rP1qk/BQ2P2n/Q2Q1NKQ w - - 0 1 illegal: No proof kernel
2R4N/n2N1qrb/pn3P2/P3RQ1K/Nr1R1Q2/q1Br1N1N/1p4Nb/5k1b w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 Na6 gxf5 Nb8 Bh3 Ke7 Bg4 hxg4 Nh3 Kf7 Ng1 Ke8 a4 Ke7 h4 b5 c4 d5 e4 g5 Ke2 d4 f4 g3 Kf3 d3 Kg4 g2 c6 b4 e6 Kd6 e7 Kc5 e8R Kd4 c5 b3 c7 d2 c6 Kd3 e5 a6 a5 b2 h5 Qd4 e6 Qc4 f6 Qd4 h6 Qb4 f7 Qb6 h7 Ne7 f5 Qb5 f6 Qc4+ Kh5 g4 Qf3+ Kc2 Ra4 d1B Nd2 g3 Nh3 Nd7 Re1 g1Q Re5 Bb7 c8Q g2 c7 Nc6 e7 Nb6 Qf5+ Qd3 c8N Na7 Rb4 Rb8 Rd4 Qf1 Q3g4 g1R Nf3 Ba8 Qh4 Rg7 Bd2 Be2 Bc3 Kd1 Qhf4 Bd5 Bd2 Qa3 Bc3+ Bd3 Rd8 Rb7 e8N Bd6 f8N Qg2 Nc7 Qg6+ Kh4 Rb8 Nce6 Qf7 Nd7 Be4 Rg8 Ke2 Re8 Rhg8 h8N Kf1 Rd8 Rg3 Rf8 R8g7 Rd8 Na8 Ncb6 Bb1 Na4 Rb4 Rc8 Nb6 Neg5 Bbc2 Ne1+ Rf3 Ng2 Bc6 Qe6 Bh7 Qef5 Be4 Nf2 Rd3 Nf3 Ba8 Nh3 Bc5 Rdd5 Bg1 Rd4 Bh2 Nfg5+ Rf3 Ne1 Rf2 Kg4 Bh1 Ng2 Rf3 Kh4 Rf2 Nf3 Rd2 Nhg5 Rg6 Kh5 Rd3 Nh3 Rg7+
RR2Q1qr/2K4R/P3NRBB/1Q2bb2/1pb1R2R/r3nn1B/1P2pk1q/3r4 w - - 0 1 illegal: No proof kernel
4rR1b/2R5/RR6/pQQN1BP1/rp2bqKn/PrQ5/3r1R2/1NR1rn1k w - - 0 1 legal: proof: f4 c5 d4 h5 b4 g5 bxc5 e5 dxe5 h4 Be3 Bh6 Bf2 Bg7 fxg5 Bh6 g4 Bf8 Bg3 hxg3 e4 Ke7 Ke2 Ke6 Kf3 f5 c4 b5 h4 d5 h5 f4 h6 d4 h7 g2 c6 b4 g6 a6 c5 d3 g7 d2 g5 Nh6 g8R Ng4 c7 Qd4 c6 Nh6 Bd3 Nf5 Ne2 g1R Rh2 Bd6 Qc2 d1R Nec3 Bb7 c8R Nd7 c7 Ne3 Rf2 Rge1 Nd5 Nf1 Kg4 f3 Qc5 Rd2 Rgf8 Be7 a3 Bf6 Rb8 Qe3 c8R Qf4+ Kh3 Rg8 Rc7 Bh8 Bc2 Bc6 Rb6 Ra7 Ra8 Nf8 Bd3 Ng6 Bc2 Bg7 h8Q Re8 Bd3 Nh4 Bc2 Qf6 Kg4 Re3 Qhf8 Rb3 Qc3 Bh8 Qfc5 Qf8 Rcc8 Kf7 e6+ Kg6 e7 Qf7 Rc7 Qf4+ Kh3 Kh5 e5 Bb7 e6 Bc6 Bf5 Bb7 Rg2 f2 Rh2 Ne3 Rg2 f1R Rh2 Re1 Rf2 Rc8 e8R Nf1 Rf8 Re8 e7 Bc6 Ne3 Be4 Nd5 Rb7 Rbf6 Rb5 Rb8 Ra5 Rbb6 Ra4 Rg6 Rc8 e8Q a5 Qeb5 Re8 Ra2 Bf3 Rc2 Be4 Rc1 Nf3 Kg2 Kh4 Kh1 Kg3 Ra6 Ra8 Rgb6 Re8 Re2 Rd3 Rh2 Nh4+ Kg1 Kf3 Re2 Ng3+ Kh2 Nf1+ Kh3 Ne3 Rh2 Rd2 Rh1 Kf2 Rh2+ Kg1 Rf2 Kh1 Qe5 Nf1+ Qec3 Qe5 Kg4 Qf4+
1br1r2R/2PQ1B2/1qr2BRR/1R1p1p1b/k4n1n/1R2b2r/K3QP2/1QNR4 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 e6 g4 Ke7 Nc3 Ke8 Nd5 exd5 gxh5 d4 Kd2 a5 b4 g5 h4 f5 e4 d6 c4 Kd7 Kc2 a4 Kb2 a3+ Ka2 d3 e5 d2 h6 g4 h5 g3 h7 g2 b6 Kc6 b5+ Kd7 e6+ Ke7 h6 Ra5 c6 Bd7 c5 Ra6 b7 Qb6 c7 Nc6 c8Q Nd8 b8R Be8 c6 Bh5 Ne2 g1R Bb2 Rg3 Qb1 d1R Rg1 Rh3 Nc1 Re1 Rg6 d5 c7 Kd6 e7+ Kc5 e8Q Kb4 Qe2 Ne7 Qd7 Ne6 Bf6+ Ka4 Rb7 Rg8 h8R Nf4 h7 Bh6 Bg2 Rc8 Bf3 Qa7 Rb8 Rc6 b6 Bg5 b7 Qb6 Re8 Bh6 h8R Bg5 Rgh6 Neg6 Reg8 Nh4 Rg7 Nd3 Bg4 Be3 Rgg6 Nf4 Ra8+ Qa6 b8R Ba7 Rb5 Bb8 Ra7 Qa5 Rab7 Qb6 Qd2 Re7 Qe2 Ree8 Rb3 Qc5 R7b5 Qb6 Bf3 Qc5 Qbc2 Rcd8 Kb1 Qb6 Rg2 Rg3 Nd3 Bg6 Bh5 a2+ Kb2 Rc8 Rd1 a1B+ Ka2 Bf7 Qb1 Rh3 Nc1 Bd4 Rg4 Bg6 Rgg1 Be3 Rg4 Bh7 Bf7 Bg6 Rg2 Bh5 Rg5 Rc5 Rgg6 Rc6
1r3n1q/8/B2Bb1Bk/B3p3/1P3n2/Qq1rB2N/RpB1PQQb/Knn4R w - - 0 1 illegal: No possible last move, all moves rejected
3b1bnQ/p1k5/PnrrR1NP/nb3B2/p2Q4/2pK1QqB/6QQ/1RB2Q2 w - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Nh6 fxe5 Bb4 a4 Bd6 a5 Ng8 Nc3 Bf8 Na4 bxa4 h4 Kd7 e4 c5 Ke2 g5 d4 f5 b4 g4 d6 c4 a6 c3 h6 g3 h7 f4 b5 f3+ Kd3 f2 e6+ Ke8 b6 g2 b7 Qb6 e7 Kd7 e8B+ Kd8 d5 Nf6 h5 Bf5 d7 Ng8 h6 Kc7 d6+ Kc6 d8Q+ Bd7 e5 Qb2 e6 Qb4 e7 Qb2 Ne2 g1B Rb1 Bh2 Nf4 Qb3 Bh3 f1N Bg6 Ne3 e8Q Qa3 Qf6 Qb4 Re1 Nc4 Re6 Nb6 Bgf5 Qb2 Qeg6 Qf2 Qf1 Qg3+ Kd4 Be8 d7+ Kc7 Qf3 Bg1+ Kd3 Nc6 Qd4 Rc8 d8Q+ Kb8 Q8d5 Kc7 Qgf6 Na5 Ng6 Be3 Qf1 Bg5+ Qdf3 Bh4 Qg5 Bc6 Qd2 Bd8 Qdg2 Bb5+ Qc4+ Kd7 b8Q Rc6 Qe5 Kc8 Qd4 Kc7 Qh2 Ne7 Qfg2 Rg8 h8Q Rg7 Ke3 Ng8 Qcf1 Rd7 Ke4 Rdd6 Ke3 Nac4+ Kd3 Na5+
2rbB3/1BQbBKpn/2B1BBPr/2p1Q2R/6pP/1N1b1Q2/4R2b/qk4n1 w - - 0 1 illegal: No proof kernel
bb6/pn5Q/4k1N1/PB4p1/NpN4Q/BrPrrqNN/2N3rn/2B1KR2 w - - 0 1 illegal: No possible last move, all moves rejected
3kB2r/2Np4/b1Brbb2/pp1B4/1BBb2KQ/2NP4/nPnB1RQ1/4bQ2 w - - 0 1 illegal: No proof kernel
2rR1rB1/K1Q3B1/2bP1b1p/1R1p4/q1k2np1/R3R1PN/3B1pn1/3QnRR1 w - - 0 1 illegal: No proof kernel
3bR1R1/1pRrb3/2p1N3/k1NpR1n1/N1PPq1r1/2p1R3/3KQ1Q1/nbB3R1 w - - 0 2 illegal: Other
1KB5/2NpqB1r/b4B2/1BpNr3/B2Qb3/nqpQpR2/2PP1N1b/kB6 w - - 0 1 illegal: No proof kernel
1N2Nb2/1b1p4/1p1Nn1RR/NPk1n1K1/rp1q2pR/N2P2NQ/1Q2pB2/4r3 w - - 1 2 illegal: No extended proof kernel
rR1qRNBR/1np1pQ1p/1NRR3p/2P4Q/7N/1K1nPp2/3k2p1/1b3Rb1 w - - 0 1 illegal: Other
4K2b/1rB5/1pQrR2n/kpR5/B3N1B1/Qpp2p2/2Pp1PBB/1bn2B1Q w - - 0 1 illegal: Other
nbRrN3/Nq1PRBN1/4bN1r/2BN2N1/nb6/b1B1n1P1/K7/R2q2k1 w - - 0 1 legal: proof: c4 b5 e4 h5 a4 f5 axb5 g5 exf5 d5 cxd5 h4 f4 h3 Qe2 Bg7 fxg5 Bh6 g3 Bf8 Qg2 hxg2 Kd1 Kf7 Kc2 e5 Kb3 a5 d4 c5 h4 c4+ Ka2 a4 b4 e4 d6 c3 d5 e3 b6 e2 b5 e1B g6+ Kf6 h5 Ke5 h6 Kd4 f6 a3 b7 c2 g7 Bg4 b6 Ra5 f7 Qe8 h7 Bd2 d7 Ke3 d8N Kf2 d6 Qd7 Nh3+ Ke3 Ng5 Kf2 Bc4 g1B Nde6 Qc8 d7 Ra8 Nc3 Ne7 g8N Nd5 Bb2 c1Q Nf6 Qd1 Ng7 Ne3 Ncd5 Bdb4 Bc3 Na6 b8N Qb7 Nc6 Be6 Na7 Nc7 Nfe8 Bfd6 f8N Rd8 Rh4 Be7 Re4 Na8 Bd4 Bed6 Bc5 Bb8 Bb3 Kf1 Re5 Bf2 Re4 Kg1 Re5 Bh3 Re7 Be6 Bc4 Bfe1 Bb3 Bec3 Bc4 Bb2 Bb3 Rg8 h8B Bc1 Nfh7 Bb2 Nf5 Rg6 Bc3 Rh6 Nfg7 Bc1 Nhf6 Bb2 Rb1 Bc1 Ka1 a2 Bc4 Qa6 b7 Bca3 Rc1 Bd6 b8R Qb7 Rc8 Bb8 Bb6 Bc5 Bb3 Bab4 Kb2 a1N Ka2 Ba3 Bc4 Nb3 Ra1 Bcb4 Bbd4 Nc5 Bb3 Na4 Bc5 Nc7 Nf4 Bg4 Bf7 Be6+ N4d5 Na8
1Rr1n3/R2P1p1b/B1P1pn2/rRqB4/1R6/b2R1K1N/b1NRN3/n3B2k w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba6 Qg4 Bb7 Qd1 Bc8 f4 g5 fxg5 c5 b4 Qa5 b6 Qb5 Qg4 Qd7 b5 Qd8 Qb4 cxb4 Kf2 Kd7 h4 Kd6 c4 Ke5 d4+ Ke4 g6 a5 g7 a4 c5 b3 c6 a3 b7 b2 h6 a2 h7 e6 h5 Bc5 h6 Bd7 b6 Nf6 d6 Ra6 Rh3 Bc8 d7 Bb4 d5 Qe8 d8R Qd7 d6 Nh5 Bd2 Nf4 Be1 Ng2 Rd3 Qc7 Nh3 Re8 h8N Ba3 g8B Nd7 b8R Qb7 h7 Rf8 Ng6 Re8 h8R Nh4 Ngf4 Ra5 Ne2 Nf5 Rh5 Qa7 Bh7 Nf6 Kg2 Rf8 b7 Qc5 Rd2 Rh8 Rh4+ Ke3 Rb4 Ng7 Be4 Nge8 Bd5 Rf8 Ra8 Rh8 b8R Ba6 Ra7 Bc4 d7 Bd3 R8b5 Bh7 Rdb8 Rf8 Nbc3 Rh8 Rad1 a1N Nd4 b1B Nce2 Rf8 Bc4 Ke4 Nc2 Ba2 Rd3 Nc7 R1d2 Rc8 Kg3 Nce8 Bg2+ Ke5 Bgd5 Kf5 Nf2 Kg5 Kf3 Kh4 Ne4+ Kh3 Ng5+ Kh2 Nh3 Ra6 R5b7 Ra5 Ba6 Kh1 R7b6 Ng8 R6b5 Ngf6
2RBBrNb/K1B5/2r3Np/1P3BBR/6R1/nb2Npnn/BP2k3/2n2b2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 h4 g5 g4 Nf6 h5 Qe7 Qa4 Qe6 Qf4 gxf4 g5 Ng8 Rh2 Ba6 Rh1 Qg6 hxg6 Bc8 Kf2 Ke7 d4 f5 e4 a5 g7 c5 d6+ Ke6 d7 f3 Ke3 c4 d8B h6 g6 a4 d5+ Kd7 Kd4 a3 d6 Ke6 Kc5 f2 Kb6 a2 d7 f4 Nd2 c3 Bc7 c2 d8B f3 Rh5 Nf6 g8N Ng4 g7 Na6 Nc4 Nc5 Bh3 f1B Bcg5 c1N Ne3 Bb7 Ne2 Rc8 Rb1 a1N Ka7 Nc2 Ra1 Bd5 Ra4 Bb3 Nf4+ Kd7 Rc4 Na3 Ng6 Ke6 Ra4 Be7 Rb4 Bf6 Rd4 Kf7 Ra4 Nf2 Bf5 Nh3 e6+ Ke8 e5 Ne4 e7 Kf7 e8R Ng3 Bd6 Rc6 Rg4 Nge2 B6c7 Ng3 N8e7 Rf8 g8B+ Kg7 e6 Bc3 Bf7 Kh7 Ng8 Bh8 e7 Kg7 Bd5 Kh7 Bb1 Kg7 Bde4 Kf7 Ba2 Ke6 Bb6 Kd6 Bbc7+ Kc5 Bc2 Rf4 Bf5 Kd4 Be6 Kd3 Bf5+ Kd2 Rf8 Ke2 e8B Rcc4 Rf6 Rc3 Rb6 Rc6 Rb8 Bd1 Rc8 Bb3 Be4 Rff6 Bf5 Rf8
1qN4B/3P1kqB/2N1Rp2/N1n1qrqn/1N3PbB/r3p2N/3N1R1b/5KR1 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 c5 b4 Bf5 b6 Be4 b5 Bf5 Qg4 Bc8 Qb4 cxb4 c4 e5 d4 g5 h4 a5 c5 a4 h6 a3 c6 b3 h7 a2 h5 b2 c7 g4 b7 f6 b6 g3 d6 e4 d7+ Kf7 d5 g2 d6 Qe8 d8N+ Kg7 d7 Qe5 h6+ Kg6 Bg5 e3 f4 Ne7 Rh2 Ra3 Bd3+ Nf5 Nh3 Na6 b8N Bb7 c8N Bb4+ Nd2 Bf3 b7 Nc5 Ndc6 Kf7 Na6 Bg4 b8N Ng7 Na5 Nh5 Bh4 Qg5 Nbc6 Qg7 Rd1 a1Q Bb1 Re8 h8R Re5 h7 Rf5 Re8 Bc3 Bc2 b1Q h8B Qb8 Re6 Bb4 Rc1 Qae5 Bd3 Bc3 Nab4 g1Q+ Bf1 Qg8 Rf2 Qg5 Rd1 Qg2 Bd3 Qg3 Kf1 Qg7 Nf3 Be1 Nd2 Qg5 Rh2 Bf2 Rc1 Bg1 Rf2 Qg7 Re1 Rg5 Bh7 Bh2 Rg2 Rf5 Rg1 Bf3 Re2 Q3g5 Rf2 Bg4
1B1KBNR1/p1N2Nrq/1B2R1b1/2n1b1b1/3n4/1pk5/P1P1R2p/RRbRr3 w - - 0 1 legal: proof: e4 c5 h4 d5 exd5 g5 hxg5 f5 b4 Nh6 bxc5 Ng8 Qg4 Be6 Qh4 Bc8 Qe4 fxe4 Ke2 Kf7 Ke3 h5 Kf4 b5 Ke5 b4 f4 h4 d4 h3 g4 b3 c6 h2 f5 e6 c7 e3 d6 e2 d5 e1B g6+ Kg7 d7 Qe7 d8B Qh4 g5 Ba6 c8R Rh6 f6+ Kh8 g7+ Kh7 f7 Kg6 d6 Be7 f8N+ Kf7 d7 Bd3 Nh3 Bg6 Bf4 Bg3 Bb5 Na6 Na3 Rh7 Rhb1 Nc5 Rc6 Nh6 g8R Rg7 Bb6 Nf5 d8R Qh7 Rdd1 Nd4 Ba4 Rb8 Nb5 Re8 Nc7 Bd8 Kd6 e5 Bb5 e4 Rh8 e3 Be5 Na4 Kd7 e2 Re6 e1B Bd6 Bf6 Bf4 Re7+ Kd8 Bd2 Bd7 Bc1 Bc6 Rg8 Be8+ Kg7 Re2 Nc5 Be5 Bh4 Bf4 Be5 Bg3 Bd3 g6 Kf6 g7 Bg6 Ng5 Kf5 Nf7 Bhg5 Rf2+ Ke4 Rf6 Qh6 Re6 Qh3 Rh4+ Ke3 Rf4 Qh7 Rf2 Ke4 Nb5 Kd5 Re2 Kc4 Bf4 Bef6 Bb8 Be5 Nc7 Kc3 Nd6 Rh8 g8R Rg7+ Kc8 Qh3 Nf7 Rh4 Red2 Re4 Rf2 Re1 Re2 Bgf4 Kd8 Qh7 Rg2 Bh6 Re2 Bhg5+
4Rbq1/4N2n/2QbQ3/2b1B3/K3pq2/BP3Q2/BP1Q1pQB/k2b3R w - - 0 1 legal: proof: f4 a5 g4 d5 e4 b5 exd5 b4 Nc3 b3 cxb3 Nd7 Nce2 Rb8 a4 Rb5 axb5 Ndf6 Qc2 Qd6 Qd1 Nh5 gxh5 Qd7 Nf3 Ba6 Ne5 Qg4 Ng1 Qg5 Ng6 hxg6 fxg5 Rh6 gxh6 Bc8 h4 Kd7 d4 Kd6 Kd2 f5 Kc3 c5 b6 e5 b7 f4 b8B+ Ke7 h7 Kf6 h8Q e4 d6 a4 h6 a3 h7 f3 h5 f2 d5 Ke5 h6 c4 Kb4 a2 Bd2 Kd4 Ne2+ Kd3 Ka4 g5 d7 c3 d8Q c2 d6 c1Q d7 g4 Qc7 g5 Qhe5 g3 h8Q g4 h7 g2 Qe6 g1B Qcc6 g3 Qg7 g2 h8B Nf6 Bh2 Nh7 Bb4+ Qd2 Rc1 a1Q+ Ba3 Bc5 d8Q+ Bd7 Qe1 Qf4 Qdf8 Qb1 Rd1+ Kc2 Ng3 Qbc1 Qff7 Kb1 Bd3+ Ka1 Bb1 Qc4+ Qb4 Qd5 Qd2 Be8 Qff6 Bh5 Nf5 Bf3 Rc1 Bd1 Ne7 Qd8 Rc4 Qdb8 Ba2 Qg8 Bg3 Bh2 Qff8 Qe3 Qf3 g1B Qgg6 Qh6 Bhe5 Qf4 Rb4 Qh6 Rb8 Qf4 Bh4 Bg3 Re8 B1h2 Bhf6 Bh4 Qgg2 Bg5 Bd6 Bh6 Bfe5 Bf8 Bc7 Qh4 Bd4 Bhd6 Be5 Bb4 Bh2 Bdc5 Bce5 Qf4 Qf7 Bd6 Qe6 Bbc5
3r2k1/3rRNq1/8/1QK2QrQ/r1PRp1pq/1N2p2b/2PQNQ2/4B1N1 w - - 0 1 legal: proof: a4 c5 d3 b5 axb5 c4 dxc4 f5 e3 d5 Qd2 d4 Qd1 g6 Be2 d3 Bg4 Bg7 Bf3 Bd4 exd4 Bb7 Qe2 Ba6 Qd1 Bc8 h4 g5 g4 Ba6 Be4 fxe4 f4 Bc8 f5 Nc6 Bd2 Nh6 Bc1 Ne5 f6 Nf5 gxf5 g4 Ra3 Nf7 Ra1 Ng5 hxg5 Kf8 Nf3 Kf7 Ng1 Ke8 Kd2 Kf7 Kc3 h5 Kb4 e5 g6+ Kf8 f7 a5+ Kc5 h4 b4 e3 g7+ Ke7 g8Q a4 f8Q+ Kd7 b6 a3 b5 h3 d5 h2 d6 d2 f6 a2 b7 Ra6 b8Q Ra8 f7 Ke6 b6 Rh3 b7 Rh8 d7 Ra7 Nc3 Qf6 d8N+ Kf5 Qg6+ Kf4 Qh5 Ra4 Nce2+ Ke4 Qe1 d1R Bd2 Qg7 Bc3 Rd3 Rd1 a1R Qd2 Bf5 Qc8 Rd7 b8Q Ra5+ Qb5 R1a4 Qc1 Be6 Be1 Bd5 Qd2 Ba8 Ne6 Rg8 N6d4 Bd5 Nb3 Ra8 Qca6 Rad8 Qf6 Bc6 Qf2 Ba8 Nh3 Bb7 Rf1 h1Q Nhg1 Qh4 Ned4 Rda8 Nde2 R8a5 Qc8 Rgd8 f8N Bc6 Ne6 Ba8 Nf3 Bd5 Neg5+ Kf5 Nf7+ Ke6 Nfg1 Bg2 Qa6+ Ke7 Qe6+ Kf8 Qef5 e4 Qb4 Bh3 Rd4 Qg8 Qd2 Qg7 Qe5 Re7 Kc6 Bg2 Qb7 Rad5 Nh6+ Qf7 Qb5 Rb4 Qff6 R5d7 Kc5 Ra4 Qh2 Re6 Rf5 Ree7 Re5 Bh3 Qhf2 Re6 Qfg5 Rg6 Qgf5 Rg5 Re7 Qf6 Nf7 Kg8 Qg2 Qg6 Qf2 Qg7
1nRRr2Q/Q1Qbqb1b/q1N3k1/3r1R1n/2KR2Bb/Nr3P2/2Q1Q2P/8 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 gxh5 a5 b4 Rh7 b6 Kf7 b5 Rh8 Ba3 Ke8 Bb4 axb4 Kd2 Kf7 Kd3 e5 c4 g5 c6 d5 c5 g4 c7 b3 f6 b2 b7 d4 h6 e4+ Kc4 d3 c6 d2 h7 e3 b6 e2 f3 e1R Ra4 g3 Bh3 g2 Bg4 Qd6 Ne2 g1Q Na3 b1B Nd4 Bcf5 c8R Re5 c7 Qe7 Qe2 d1B Nc6 Kg6 f7 Bd7 Rb4 Bg7 f8R Rd5 Rf5 Nf6 Ra4 Rg8 h8Q Re8 Rd8 Qf2 c8Q Nh5 Rf1 Bdc2 Rc1 Qf1 Qc7 Bf8 Qc3 Bd1 Qc2 Raa5 Rb4 Rab5 Ra4 Rb3 Rb4 Na6 b8Q Bg7 b7 Bf6 Qa8 Bh4 b8Q Ba2 Qba7 Nb8 Qd4 Bb1 Qaa7 Ba2 Qcc3 Bc2 Qh8 Be4 Qd2 Qf2 Qc2 Qb6 Rd1 Qb7 Rd4 Qb6 Rb5 Qa6 Rf8 Kg5 Rc8 Bh7 Rf5+ Kg6 Rd8 Qc8 Rc5 Qa6+ Nb5 Ra3+ Kb4 Ng7 Ne5+ Kh6 Qa5 Rd6 Rcc8 Bf7 Nc6 Kg6 Q5c7 Rb3+ Kc5 Rd5+ Kc4 Qb7 Na3 Nh5 Qb1 Qb6 Qbc2 Qa6+
Qr2r3/2N5/1Q1KPbbk/n1q1B3/1Q2N2P/1B1N1b2/1rN1NQ2/1qR2nb1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 g4 a5 b4 h5 gxh5 Rh6 b6 Rd6 b5 Rh6 Ra4 Rh8 Rb4 axb4 Kf2 g5 Kf3 f5 h4 Kf7 e4 Kg7 d4 c5 d6 f4 b7 c4 b6 c3 d7 c2 d5 b3 d6 b2 h6+ Kh7 e6 Qf6 d8N Ra1 e5 g4+ Ke4 g3 Kd5 f3 d7 f2 e7 g2 e8N Ra4 e6 Rf4 Qe1 Rf3 Nc3 b1Q Bb2 c1B Nf7 Be7 d8N Qff5+ Ne5 Bf6 Nge2 g1R Nc7 Ne7+ Kd6 Nbc6 b8Q Rg2 b7 Nd5 Ne4 Re8 Nd3 Be3 Be5 Na5 Nc6 Rgg8 Bg2 f1B Ncd4 Bg1 Nc2 Ne3 Qf2 Rfg3 Bf3 Rg2 Qa7 Rh2 b8Q Bb7 Qb6 Kg6 h7 Kh6 Qb4 Bh3 Qa7 Nf1 Qab6 Rb8 Bg4 Rge8 Bf3 Qg5 Bg2 Bf5 h8Q+ Bh7 Qg8 Bg6 Bf3 Re7 Qc8 Bd5 Qcb7 Qe3 Qa8 Ree8 Na3 Nb3 N2c3 Rec8 Nec5 Re8 Qa2 Bf2 Bd1 Bf3 N5e4 Na5 Bb3 Nd2 Rc1 Nf1 Qd2 Bg1 Qe1 Rc2 Ne2 Ra2 Nc2 Rb2 Qf2 Qc5+
k3qnB1/3rB1P1/1Bq1r1Q1/r3Q3/6b1/QK1N1b2/qQ2Pn1B/1QRR1r2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bh3 Na3 Bc8 h4 Qe7 g4 Qd6 Nc4 Ke7 Ne3 Bb7 Ng2 Bc8 Nf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ke8 Nh3 Qf6 Ng1 Qd8 d4 Kd7 Kd2 c5 Kc2 Kc7 b4 Kb7 g7 f5 g6 a5 b6 h5 e6 h4 e7 h3 e8Q a4 d6 a3 d7 c4 d5 h2 d6 a2 b5 f3 Qe3 f4 Nh3 c3 Bg2 Qe8 d8B Nc6 d7 f2 Bd5 f1R Be7 f3 d8B f2 Kb3 c2 Nf4 Rh7 Nd3 Nf6 g8Q Bg4 g7 Ne4 Qe6 Ra5 Qg6 Ka8 Bg8 Nb8 Bd2 Rh4 Rc1 a1Q Qh3 Rh6 Bf4 Nd7 b7+ Ka7 Rg1 h1B Bh2 Nf8 Qe1 Bhf3 b6+ Ka6 Qb4 Rd1 b8Q f1R Qe5 Nf2 b7+ Ka7 Qbc3 Rd2 Qb2 Rdd1 Qb1 Rd2 Rd1 c1Q Bc7 Qcc6 b8Q+ Ka6 Qbb5+ Ka7 Bb6+ Ka8 Qeb2 Ra2 Q5e5 Ra5 Qgd6 Rf6 Qh7 Re6 Qda3 Rc2 Qg6 Rc4 Rg3 Rd4 Rh3 Rd7 Rh4 Bh3 Rc4 Bhg4 Rcc1 Qa2+
B7/1B1qP3/n2nrB1K/1Q2B1q1/1Q2QrR1/2Pr2q1/Nb2rkB1/N3b2Q w - - 0 1 legal: proof: b4 b5 f4 c5 d4 f5 dxc5 e5 fxe5 h5 g4 f4 a4 Bb7 axb5 Bc6 Ra6 Bb7 Rg6 Be4 Rg5 Bf5 gxf5 Rh7 Rg2 Rh8 Rg4 hxg4 Kf2 Ke7 e4 g5 h4 a5 c3 d5 e6 Kf6 c6 Ke5 c7 g3+ Kf3 a4 Kg4 d4 c8B d3 b6 f3 b7 g2 f6 f2 b5 a3 b6 a2 f7 a1R h5 d2 e7 Bh6 f8Q Qd5 e8B R8a3 Qf5+ Kd6 e5+ Kc5 e6 Ne7 Bc6 Na6 b8Q R3a2 b7 Rd8 Qe4 Nf5 e7 Nd6 Ne2 g1B Bg2 f1R Rh4 Bf2 Na3 Be1 Nc2 Rb1 Na1 Rb6 Qda4 d1Q Be3+ Q1d4 Nc1 Re2 Na2 Rf7 Qd1 Kc4 Bf4 Qc5 Be5 Rf4+ Kh3 Rd7 Rg4 Rd8 Qdb1 Qb5 Qa8 Qd5 b8Q Qc5 Rg3 g4+ Kh4 Qa5 B8b7 Qb5 Qf5 Qd3 Bcf3 Qd7 Qh7 Qg6 Qb4+ Kd3 Qh8 Ke3 Qh7 Qf7 Qhe4+ Kf2 Qb5 Qff5 Qbb4 Bg7 h6 Bf8 h7 Bh6 h8B Bg5+ Kh5 Rc6 Rh3 g3 Bhf6 Rb6 Bf1 g2 Rh4 g1Q Rg4 Qg3 B3g2 Bh4+ Kh6 Qg5+ Kh7 Rc6 Bh1 Bd2 Bfg2 Bc1 Qb5 Bb2 Qbb4 Nc4 Qb5 Re6 Qd6 Qc6 Qdb4 Rd3 Qh8 Nd6 Ba8 Qg8+ Kh6 Qd7 Qeh7 Bg5+ Kh5 Kg1 Bgd5 Rf5 Bdb7 Kf2 Bhg2 Rff3 Qf5 Bd2 Qfe4 Rf4 Qh6 Be1 Qhh7 Qge8+ Kg5 Qh8 Qh1 Qg8+ Kh6 Qg5+
3nqR2/n2P2r1/Q2b1n2/KnQ2Q1B/2R1R3/b5rQ/R6P/qQB2qNk w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 h6 f5 Kd7 g5 Kd6 g6 Be6 Nc3 Kd7 Ne4 Bf7 Ng5 hxg5 gxf7 g4 b4 Kd6 d4 a5 Kd2 c5 Kc3 e5 b6 g5 b7 g3 b5 c4 b6 g2 Bb2 a4 Kb4 c3 Qh5 g4 Rb1 e4 Bc1 e3 Nh3 g1N Ba3 c2 Re1 c1B Be2 Nf3 Ng1 g3 Qh3 Ng5 Bh5 e2 Bb2 Be7 f8R g2 f7 a3 f6 a2 Kb5 Bf4 Bc1 Nc6 b8R a1Q b7 Ra7 Ra8 Ne6 b8Q+ Rc7 Qc8 Qe8 Ra2 Na7+ Ka5 Nd8 Qcf5 Rh7 Qc2 Rc3 Qb1 Kc7 d6+ Kc6 d7 Rg3 d5+ Kc5 d6 Kd4 Qb5 Ke4 Qb6 Rhg7 Qa6 Ne6 d8Q Be5 d7 B5d6 Rd1 e1N Qb8 Nc2 Qb1 Nd8 Rd2 Ke3 Rd4+ Kf2 Rc4 Ba3 Ne2 Bed6 Re1 Nd4 Ng1+ Qb2 Re7 Ndb5 Ree4 Kf1 Qe6 Qa1 Qh3 Ne7 Rg8 Nd5 f8Q R7g6 f7 Nf6 Qe7 R6g5 f8Q Rg7 Ne2 Kf2 Qe5 g1Q Qc5+ Nd4 Qf7 Qh1 Rf8 Qf1 Qhe6 Kg2 Ng1+ Kh1 Qh3 Ndb5 Qfd5 R3g6 Qdf5 Rg3
R1RNb3/1N1Pr3/N4Nrb/8/kqq2bB1/1R1RnPR1/bQ3q2/1K4Qn w - - 0 1 illegal: No possible last move
BK3kBn/3QNP2/5P1n/n2Q1BB1/2brQ2R/N2Q2b1/bqQ1r2n/7b w - - 0 1 illegal: No possible last move
1rQBQ1bq/b4RB1/1N1kP1K1/nq3n2/B2bQq1N/P7/2B1b3/1b2B2Q w - - 0 1 legal: proof: b4 b5 g4 f5 f4 a5 bxa5 e5 fxe5 h5 c4 d5 cxd5 f4 a3 Ra6 Qc2 Rf6 Qd1 Rf5 gxf5 Ba6 Nh3 Qd7 Rg1 Bc8 Rg4 hxg4 Ng1 Qe7 Bg2 Kf7 Qb3 Qe6 Nc3 Nh6 Nf3 Nc6 Bb2 Qd6 Kf2 Ng8 Rh1 Be7 Bc1 Nf6 Ke1 Nb8 Bf1 Ke8 Ng1 Bf8 Nb1 Qd8 Qd1 Ng8 Kf2 Ke7 e4 g5 h4 c5 d4 f3 Ke3 g3 f6+ Kd7 e6+ Kc7 f7 g4 Kf4 f2 Kf5 b4 d6+ Kc6 a6 g2 d5+ Kb6 d7 Kc7 e5 c4 d6+ Kc6 h5 g3 e7 c3 e8B c2 a7 b3 a8Q+ Kc5 h6 b2 e6 Qb6 d8B Nc6 h7 Nh6+ Kg6 Bb7 d7 Bg7 Bd3 f1B Nc3 b1B Na4+ Kd6 Bd2 c1Q Be1 Bd4 Nf3 g1B Nh4 g2 Bc2 Qb5 Nb6 Nf5 Qf3 Qf4 Qc8 Rf8 h8Q Be2 Qe4 Na5 Qh7 Bgf2 Rf1 Ba6 Bf6 Bd3 d8B g1Q+ Ng2 Rh8 Qh1 Qgh2 Bg7 Rf8 Bc6 Qh8 Nh4 Be2 Na4 Ba7 Nb6 Bd4 Bd7 Qc6 Rf2 Bad3 Be8 Qc4 Bea4 Qb5 Rf1 Re8 f8Q+ Re7 Qg8 Rb7 Rf2 Rb8 Qe8 Ng3 Qf5 Qc1 Kf7 Qd2 Qg4 Bh7 Qge4 Bg8+ Kg6 Qe3 Rf6 Qf4 Rf7 Nf5
K2Rr3/5Q1b/r7/2b1PNP1/q1R1qB1Q/Bn3Q2/1B2Q3/bBBqr1kb w - - 0 1 illegal: No possible last move, all moves rejected
q6r/1PNQ1KnQ/4Qb1N/n1k1b3/3R3N/2N1Nb2/Qq1qPRq1/B1n5 w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 f5 axb5 e5 fxe5 f4 Bh3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Nf6 Ra1 Ng8 Kf2 Kd7 b4 c5 d4 g5 h4 c4 b6 a4 e6+ Kd6 b7 c3 b5 g3+ Kf3 c2 Ke4 g2 h5 f3 h6 a3 h7 f2 b6 f1N f6 a2 Kf5 g4 Kg6 g3 e7 Nd2 e8N+ Kd7 d6 Kc6 f7 Nf6 d7 Rg8+ Ng7 Nb3 h8Q Nd2 d5+ Kd6 Nc3 Ng4 Rh4 Nf1 Bb2 c1B Qc2 Bg5 Qh7 Nd2 Rf1 a1Q Nf3 g1Q Rf2 Qa3 Ba1 g2 Qa2 Rh8 Nf5+ Kc5 d6 Nb3 Ne3 Bg7 f8N Qd1 Kf7 Nf6 Rd4 g1Q Nh4 Nc6 b8Q Nh5 b7 Nc1 Qa8 Qg3 Qe6 Qb2 Qaa2 Qa5 d8N Qdd2 d7 Qg2 Qh3 Be5 Nfe6+ Kb6 Q3f5 Ng7 Nc7 Kc5 Qfe6 Qa6 Kg6 Na5 Nf7 Qa8 d8Q Bd7 Nh6 Bc6 Kf7 Bgf6 Qdd7 Bf3
k1n3QB/1n3Bb1/2Nnq3/1b2bN1b/P2rbN2/5BNn/R5BP/1NK4Q w - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 h5 a4 f5 g4 a5 bxa5 d5 c4 f4 cxd5 Ra6 Ra3 Rah6 Rg3 Rf6 Rg2 Rf5 gxf5 Rh6 Rg3 Rh8 Rg4 hxg4 d4 Kd7 Kd2 g5 e4 c5 e6+ Kc7 e5 Kb7 e7 f3 e8Q g3 d6 g2 f6 g4 f7 f2 d5 c4 a6+ Ka8 d7 b4 d6 b3 e6 b2 e7 g3 a7 c3+ Kc2 Rh4 Qg4 Qb6 d8N Nf6 d7 Ne4 Bg5 Nd6 Nb7 Nc6 d8N Bg7 Qe4 Bg4 f8N Bh5 Ne2 g1N Bg2 f1B Bf6 Nh3 Nfe6 Qa6 Qd5 Rd4 N6f4 Qb6 Bf3 g2 Qeg8 g1B e8B Ne7 Bf7 Nec8 Ng3 Bb5 Nc6 Be3 Rf1 Qa6 Rf2 Qb6 Nd2 b1B+ Kc1 Be4 Rg2 Bf2 Nb1 c2 Be5 Be1 Rf2 Bc3 Rg2 Bf8 Bh8 Bg7 Rf2 Rd2 Rg2 Bce5 Re2 Rd4 Rg2 Nc4 Nd6 Qa6 Ndf5 Nd6 Qc4 Qb6 Qf1 Qa6 Qh1 Qb6 Kb2 c1N Rc2 Nb3 Rf2 Nc5 Kc1 Qd8 Ra2 Qe7 Bg2 Qe6 Bf3 Kb7 a8B+ Ka6 Nce7 Ka7 Bd1 Bed3 Bg2 Ncb7 Bdf3 Be4 Nc6+ Ka8
8/k2n1b2/1b2B2B/1q2P1Q1/1Q1P1qR1/3RQ1qQ/3QB1br/N2qBnKb w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Na6 Nc3 Rb8 Na2 Ra8 Nb4 Bc8 Nd3 Nb8 g4 a5 h4 Ke7 h5 Ra6 Nf4 gxf4 g5 Rg6 hxg6 Ke8 Kf2 Kd7 d4 c5 e4 Kc7 b4 Kb7 d6 f5 g7 h5 g6 c4 e6 c3 d7 f3 e7 c2 e8Q a4 b6 a3 b5 h4 Rh3 f4 Qd2 a2 Ne2 Rh7 Kg1 Ne7 g8B Nf5 g7 Ng3 Be6 Qg5 d8B Bc5 g8Q Nd7 e5 Ka8 b7+ Ka7 Ba5 Bb6 Qh5 Rh6 Rb1 a1Q Qg7 Qg4 Qgg5 Rh7 Rb3 Qb2 Rh1 h3 Rd3 Qb4 Qe3 Qe1 Bcd2 Qd1 Nc1 Rh6 Nb3 c1Q Na1 f2+ Kh2 f3 Be2 f1B Rg1 f2 Be1 Qh4 Bad2 Bg2 Qhf3 f1Q Qff4 Bc7 b6+ Ka6 b8Q Qc4 b7 Qb5 Qgf6 Bb6 Q6g5 Rh5 Qd6 Ka7 Qb4 Qf2 Qff5 Qff4 Bc1 Rh7 Qbd2 Rh5 Ba3 Rh8 Bf8 Qhg4 Bh6 Qh4 Rh1 Nf1+ Kg1 Qhg3 b8Q+ Ka6 Qd6 Ka7 Qdf8 Bcb7 Qh7 Bbd5 Qfb4 Ba2 B6g4 Bg8 Be6 Bf7 Rh2 Bb7+ Rg2 h2+ Kh1 Be4 Qhf5 Bb7 Qh3 Qgh4 Bg7 Bf3 Qhg3 Rh5 Bh6 Ba8 Qgf3 Qhg4 Rg3 Rh3 Kg2 h1B+ Kg1 Rh2 Qg2 Qh4 Qh3 Bag2 Rg4 Qhg3
5r1B/1pq2Q2/k3n1QP/1b1B3B/1q3Q1K/1R1P1NQ1/7n/nbrRqBQ1 w - - 0 1 legal: proof: c4 h5 b4 a5 bxa5 d5 cxd5 e5 f4 f6 Nc3 Bc5 fxe5 f5 g3 f4 Ne4 f3 Nf2 Be3 Ng4 Bf4 gxf4 hxg4 Kf2 Kd7 Kg3 c5 a4 Kc7 e4 g5 h4 f2 h5 c4 a6 Kb6 f5 c3 f6 c2 d3 Nd7 h6 Rh7 a5+ Ka7 e6 Re7 f7 Qc7+ e5 Qc3 f8Q Qc6 d6 Rb8 Bb2 c1N Ra3 Qc7 Nf3 Ngf6 Rb3 Nc5 Qf7 Bd7 Bc3 Bc6 d7 Rf8 d8Q Bb5 Qd6 Ree8 e7 Rc8 e8B Ne6 Rb2 Nb3 Bc6 Na1 Rb3 Rb8 Bd5 Rbc8 Kh2 g3+ Kh3 g4+ Kh4 g2 Qb1 Nf4 e6 g1Q e7 g3 e8B Ne6 Qf4 Ng4 Bh8 g2 Qg3 Nh2 Qff4 Qb8 Bh5 Rc2 Qe1 Qc7 Qee4 Rc1 Qeg6 Rf7 Be2 Qe1 Bf1 Rf8 Qgf7 g1Q Qfg6 Kb8 a7+ Kc8 a6 Qb4 a8Q+ Kd7 Bg2 f1B a7 Be2 Bf1 Bd1 Qb8 Qe3 a8Q Qee1 Qaa7 Bc2 Qg1 Bb1 Qba7 Kc8 Qa2 Kb8 Qaf2 Qc5 Qff7 Ka7 Qgf4 Ka6 Q2g3 Ng4 Rh2 Qcb4 Rd2 Nh2 Rd1 Qc6 Rd2 Qc2 Rd1 Qc7
4r3/1QQNr1kb/P1r5/4rP1Q/QRR2Q2/2p2Rq1/1b2R1qn/NB3nK1 w - - 0 1 illegal: No possible last move, all moves rejected
2QKnb2/1BB2q1P/2P2rr1/7B/qpQ1Nr2/2Q1b1B1/4nrNR/1QB2k2 w - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Kd8 f7 Kc7 bxa3 Kc6 a4 Qc7 a5 Qd8 a4 h5 f5 b6 f6 Ba6 Ra3 Bc4 Rg3 Bd3 Rg2 Bf5 gxf5 Ra6 Rg5 Ra8 Rg4 hxg4 Kd2 Kd5 Kd3 g5 h4 e5 c4+ Kc6 Ke4 g3 h5 g4 a6 d6 a5 b5 a7 b4 a6 g2 h6 g3 h7 Qc8 Rh2 Qe6 Be2 Qe7 Nh3 g1B Bh5 g2 Nd2 Bf2 Nf4 g1R Ng2 Qd7 Qb3 Be3 Qc3 Bg7 f8B Qf7 Be7 Bf8 Bd8 Rf1 Bc7 d5+ Kd3 d4 Ke4 Qg7 f7 d3 f6 Rf2 Nf1 d2 Ng3 Bd6 f8Q d1Q f7 Qa4 Qc8 Bf8 Qg4 Rf6 Qe2 Rg6 Kf5 e4 Qeb2 Nf6 Ke6 Rg8 Qb1 Ne8+ Qf6 Rg4 Qd4 Rf4 Qc3 Be7 f8B Qf7+ Ke5 Rf6 Bh6 Bf8 Bf4 Kd7 c6+ Ke7 Bb6 Rgg6 c7 Kd7 c8B+ Kc6 c5 Kb5 Bb7 Ng7 Qe1 Kc4 Bc7 Ne8 Qd2 Bf2 Qdb2 e3 Ne4 e2 Bg3 e1R Qa3 Rf1 c6 Be3 Qaa1 R1f2 Qab2 Rc2 Q2a2+ Kd3 Qe6 Nd7+ Kd5 Rb8 a8Q Rf4 a7 Ndf6+ Ke5 Rd8 Qac8 Rd6 a8Q Nd5 Qa5 Nc3 Qc5 Ne2 Qh3 Rdf6 Qhg4 Ng1 Qh4 Rf3 Qc3+ Ke2 Qhg4 Kf1 Qge6 Ne2 Qec4 Qg7 Kd5 Rg4 Ke5 R6f4+ Ke6 Rg6+ Qf6 Qg8+ Kd7 Qf7+ Kd8 Rf2 Qfc3 Rff6 Qca2 R2f4 Qae6 Ng1 Qea2 Rcf2 Qac4+ Ne2
3R1n1B/Qq3P2/1N2N2b/n2pR1RN/RP1RQ3/r1q2K2/1n2r3/2k2Nbn w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 f5 Rh7 g5 Rh8 Be2 Bb7 Bf3 Bd5 Bg4 hxg4 g6 Bf7 Bg5 Qc7 gxf7+ Kd8 Bh6 Kc8 Bf4 Qd8 Bc1 Kc7 Kf2 e5 h4 d5 c4 g5 b4 a5 h5 e4 b6+ Kc6 h6 a4 h7 a3 b7 a2 Rh4 Qb6 Nh3 Na6 b8Q Ne7 Bb2 Nc7 Qd4 Ra3 Nf4 Bh6 f8N Qb7 f7 Ne6 f6 g3+ Kg2 e3 Kf3 g2 Qa7 g1Q Nd2 Qc1 Qe4 Qc3 Nh5 Nf5 Nf1 Ng3 Nd7 Rd8 f8N Nh1 h8R Re8 f7 Re7 Re1 a1N Rg8 Nb3 Nb6 Na5 Rf4 Re8 Ra1 Re7 Rf5 Re8 Re5 Re7 Rd1 Re8 Rd4 e2+ Kg2 g4 Rgg5 g3 Ba1 Kc7 c6 Kd6 c7 Re7 c8R e1N+ Kg1 g2 Rd8+ Kc6 c5 Kb5 c6 Nd3 c7 Nb2 c8R Re8 Kh2 g1B+ Kg2 Re7 Ra8 Re8 Ng6 Nf8 Ngf4 Re7 Ne6 Re8 Nd7 Ka4 Nb6+ Kb3 Rg8 Nd3 Rgg5 Kc2 Kf3 Kc1 Qb8 Nb3 Ra4 Na5 Qa7 Nb2+ Qd3 Qbc6 Re1+ Nd1 Nef4 Qc8 Rc4 Qc2 Bh8 Qd7 Rd4 Qb7 Re2 Re4 Ne6 Qc3 Re3 Nb2 Re2 Rh4 Ree5 Rh2 Qe3+ Rd2 Qd3 Be3 Qh7 Re2 Qe4 Bg1+
q1nk2K1/PQn1pnBb/1Q4Bb/B1R3Pr/4Q2q/B3N2N/2n5/1BQ2r2 w - - 0 1 illegal: No possible last move
B2N2QN/1q2kb2/2B5/4Br1r/K1npn1rn/3r1P1N/NPB5/BQ1r2R1 w - - 0 1 illegal: Other
Bb2B1k1/6r1/Pn1Rb1RQ/1b2PQ1B/Q4r1B/Qb3p2/2r1N3/Q3b1Kq w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 g5 f4 Ra7 fxe5 Nd7 Na3 Nb8 Nc2 Ra8 g4 Qd6 h4 Qc6 h5 Qf6 Nd4 Nc6 Ne6 Nce7 Nf4 gxf4 g5 Ng6 hxg6 Qd8 Kf2 b5 a4 h5 d4 f5 e4 c5 g7 Kf7 a6 f3 a5 h4 d6 f4 d5 c4 a7 h3 d7 h2 a6 c3 d6 c2 Be2 Qc7 d8Q b4 d7 Ne7 e6+ Kg8 e5 b3 Qe8 b2 d8Q b1B Q8d2 Nd5 e7 Ba2 Qa4 Rh4 e8B Qc3 Rb1 Bg4 Rb6 Bb3 Rg6 Rc8 a8B Nb6 Qd3 Rc5 Qf5 Bd6 Qdd4 Qd3 Qda1 Bb8 Bd2 c1B Be1 Rh7 Kf1 Rc2 Bh4 Qc3 Bd1 f2 Ne2 Qf3 Rg1 h1R Rd6 Rh3 Rg3 Qd3 Kg2 f1B+ Kg1 Ba3 Nc3 Bb4 Q4a3 Rhh2 Qd7 Bge6 Qda4 Rhf2 Bdh5 Ba5 Rg4 Qh3 Rg2 Bb5 Ne2 Be1 Rg3 Rh8 Rg4 Kh7 g6+ Kh6 g8Q f3 Qf7 Rf8 g7 Kh7 Qf6 Rh2 Qg5 Rf4 Qf5+ Kh6 g8Q Rc7 Nc3 Rc2 Ne2 Rh7 Qgf7 Rg7 Qg5+ Kh7 Qff5+ Kh8 Qh6+ Kg8 Rg6 Qh1+
1B6/1nbQ1r1q/P1N2B2/BBR2b2/bBQ5/1p2P1k1/Q3n1b1/b2Kq1RQ w - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 e5 b4 h5 bxa5 Ra7 gxh5 Ra6 d6 Ra8 e4 b5 d4 Ra6 d5 Rc6 Na3 Rc3 Nc2 Rd3 Nd4 Re3+ fxe3 exd4 h4 Kd7 a4 f5 h6 c5 a6 g5 a7 c4 a8Q c3 a5 f4 e5 g4 h5 d3 h7 c2 a6 g3 h6 f3 Be2 g2 Qd2 b4 Ba3 c1B Rh5 f2+ Kd1 f1B Qa2 d2 Bb5+ Nc6 Ne2 g1Q Nd4 Nf6 Rf5 Rg8 h8B Ne8 h7 Qh4 Bf6 Bb2 h8Q Rg7 Qg8 Rf7 Qc4 Be7 Qg2 Qh7 e6+ Kd8 d7 Nd6 Be5 Nb7 Bb8 Bd6 Rh5 Ke7 d8B+ Kf8 Qge2 Kg7 e7 Kf6 Ba5 Bf5 e8Q Bc7 Qd7 Ke5 d6 Ke4 Qa2 Bg2+ Qf1 Qf2 Qfc4 Bc3 Rc1 Ba1 Rh1 Qfh4 Rg1 Qg3 Qc8 Qf2 d7 Qg3 d8B Qf2 Ne2+ Kf3 Bf6 Nd4 Qd7 Kg4 Qd3 Qg3 Rc5 Kf3 Qdc4 Kg4 Nf4 Ne2 Ng6+ Kh3 Ne7 Qgh4 Qa7 Kg3 Qb6 Qh1 Qbc6 Q1h4 Q6e4 Qh1 Nc6 Q1h4 Kc2 d1B+ Kd2 Ba4 Qed5 b3 Kd1 Qf4 B3b4 Qf2 Qf3+ Kh2 Qh5+ Kg3 Qh1 Qe1+
1Qr2q1R/5b2/2r3k1/nqB1nnB1/QB4Nn/Q3q1PB/1N1p1K1P/Q6Q w - - 0 1 legal: proof: a4 c5 f4 d5 d4 h5 b4 g5 e3 b5 axb5 h4 Ra4 h3 dxc5 d4 Ra6 d3 Re6 Bg7 Rg6 Bd4 exd4 Qd7 Re6 Qd8 Re2 Kd7 fxg5 Ke8 g3 Rh5 Rf2 Rh8 Rg2 hxg2 c4 f5 c6 Kf7 b6 a5 b7 e5 d5 e4 b5 a4 b6 f4 g6+ Kf6 c5 a3 g7 a2 d6 a1N d7 f3 c7 e3 c6 e2 Ba3 d2+ Kf2 e1N Nc3 Rh5 Bb4 Kf5 Nh3 Qe8 d8B Rh4 Na4 Rg4 Bg5 Nec2 Nb2 Na3 Qa4 Ne7 g8Q Nb3 Qg7 Be6 c8Q Ng6 c7 Nd7 b8B Nc2 b7 Ncd4 Ba7 Nh4 b8Q Na5 Bac5 Qf8 Qa6 Ne5 c8Q Re4 Qd8 Bf7 Qd5 Re3 Qa3 Rc3 Qab5 Ra6 Qba4 Rc6 Qh8 Kg6 Rg1 Nd7 Qhe5 Rc2 Qe1 Ndf5 Qea1 Ne5 Bce7 Qe8 Qa7 Nb3 Bbd6 R6c4 Nf4+ Kh7 Ng6 Qc8 Nd3 Nh6 Ke3 Nd7 Nge5 f2 Ng4 Ne5 Rh1 g1Q Bh3 Na5 Qb6 Qg2 Rb1 Qg1 Qh1 Kg6 Qd8 Qa8 Rb8 N6f5+ Ke2 Rc7 Nb2 R2c4 Qf8 R4c6 Re8 Qc8 Bb4 Qd8 Bec5 Qd6 Qe7 Rc8 Qa7 Qe7 Qb8 Qd6 Rh8 Qf8 Qe1 f1Q+ Kd1 Qb5 Qf1 Nd3 Ke2 Qd4 Qfa1 Qe4+ Kf1 Ne5+ Kf2 Qe3+
NQ2q1rR/p1QQ4/r2nR3/q2P4/2R3r1/Bnq1R1N1/P4KQ1/k2b2Rq w - - 0 1 legal: proof: c4 c5 f4 d5 cxd5 f5 e4 h5 exf5 c4 g4 e6 b4 c3 f6 c2 Be2 Bc5 bxc5 Kd7 Ba3 Ke8 Bb2 c1Q Bf3 Qc3 Bc1 Qd3 Be2 Qf5 gxf5 Kd7 Bf3 Ke8 Bg4 hxg4 d4 Kd7 h4 g5 f7 b5 f8Q e5 d6 Kc6 h5 Kd5 f6 Kc4 f5 b4 d5 e4 d7 g3 c6 b3 f7 e3 h6 e2 f6 g2 h7 g4 c7 g3 Ba3 b2 Qe8 Ne7 f8R Nbc6 f7 Nd4 Nd2+ Kc3 Rh6 b1Q Nc4 Qe4 Re6 Nb3 Nb6 Nf5 Qb1 Qd4 Qe4 Nd6 Rg8 Qc5 f8Q Qa5 Rgg6 Rb8 Na8 Rg8 h8R Rb6 Rb1 Qe7 d8Q Ra6 Qed7 Qe8 Rgh6 Rg4 Rh3 Rg8 Q7e7 Bd7 c8R+ Bc6 Qec7 Rg4 Bc5 Ba4 Qdd7 Rg8 Rc1+ Kb2+ Bb4 Rg4 Rc4 Ka1 Rg8 Nd2 Ba3 Bd1 Rb8 Qc3 Rb3 Qa5 Re3 Qc3 Qc2 Nb3+ Qd2 Qa5 Rhh8 Qc3 Nf3 Qa5 Nh2 g1R+ Nf1 g2 Kf2 Qc3 Ng3 Qa5 Kf3 e1Q+ Qe2 Qec3 Kf2 Qh5 Qfb8 Qe8 R6e5 Rh1 Re6 g1Q+ Kf3 Rh7 Rg5 Qh1+ Kf2 Rh6 Qf1 Rh7 Qg2 Rg7 Qf3 Rh4 Ne4 Qf7 Rg1 Rhg4 Ng3 Qe8 Qg2 Rg8
1n4nQ/p5q1/BrQ3PB/1B1q2bN/rBQ5/r1PQ3n/2K2nQ1/kN1R4 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 g4 Kf7 f4 Ba6 b4 Qa5 f5 Bg7 Ra3 Bb7 Rf3 Ke8 Rf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Bf8 Rh4 Qc7 Rh1 Qd8 Kd2 Kf7 c6 h5 c3 d5 c7 e5 c8Q h4 b6 d4 b7 d3 b5 e4 b6 h3 Ne2 h2 Qc6 f3 Nf4 f2 Nh5 Bh6 Qda4 Qd4 Qac4+ Qd5 Be2 Rh7 Rd1 h1N Ba3 f1R Bb4 e3+ Kc1 d2+ Kc2 Nd7 b8Q Nf2 b7 Nh3 Qh2 Rb8 Qg2 Rf4 Bf1 e2 Qd3 e1Q g6+ Ke8 g7 Kf7 g5 Qee5 Be2 Rc4 Bf1 Rc5 Be2 Ra5 Qcc4 Ra3 g6+ Ke8 Bf1 Bg5 f7+ Kd8 f8B Qe7 Qb5 Kc7 Qbc4+ Kb6 f6 Qee5 f7 Qe7 Bd6 Ka5 Bb4+ Ka4 Be2 Rc8 b8Q Rc6 Qd6 Rb6 Qe6 Nb8 Qec6+ Qb5 Rc1 d1N Bf1 Ndf2 Rd1 Nh6 g8B Rh8 Bh7 Ng8 Bh6 Qb7 f8Q Qg7 Qc7 Qd5 Qfd8 Nf6 Bg8 Rh7 Be6 Ng8 Bc8 Rh8 Ba6 Rh7 Q4f4 Rh8 Kd2 Kb3 Qc6 Ka2 Kc2 Ka1 Qfc4 Ne7 Bb5 Rf8 Be2 Rf4 Qh8 Ng8 Bg4 Rba6 Bc8 R6a4 Bca6 Rf6 Qd7 Rb6 Qe6 Qdd4 Qec6 Qd5
1N1Qq1N1/q1rN1Br1/r2k4/pP3qq1/P3n3/2Q1R3/2Nq1N2/1Q2KnBQ w - - 0 1 legal: proof: e4 e5 d4 Ke7 dxe5 b5 f4 b4 e6 b3 e5 g6 cxb3 Ba6 b4 Bb7 b5 Bh6 Nh3 Bc8 Ng1 Kf8 e7+ Kg7 e6 Kf6 Ke2 Bf8 Ke1 Bg7 g4 Bb7 Qa4 Be4 Qa5 Bh6 Bc4 Kg7 Qa4 f5 Qd1 Bg5 Bd3 Bf6 Bf1 Be5 fxe5 f4 b4 Bd3 a4 Bf5 gxf5 h5 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 e8Q c5 h4 a5 b6 d5 h5 d4 e7 g5 b7 f3 e6 Kf6 h6 Ke5 f6 d3 h7 c4 b5 d2+ Kf2 c3 f7 c2 f8N g3+ Ke3 g2 Kf2 g4 Rh3 Nc6 b8N Nb4 Qc6 Nd5 e8N Ne3 e7 Ra6 Qb7 Nf6 Bc4 Rg8 Bf7 Rg7 Na3 Qd7 Qe1 d1Q Qc6 Qe6 h8Q Qd4 Qd1 g3+ Ke1 Ne4 Nf6 Qd3 Qc8 Kd6 e8Q Qdd5 Bd2 c1R Nf8d7 Qa2 Qed8 Qe8 Ng8 f2+ Ke2 Rc2 Qb1 Qd5 Qc4 Qf5 Qcb3 Rc7 Nc2 Qd5 Qc3 Qd4 Nf3 g1Q Nfe1 g2 Nd3 Qh2 Rf3 g1Q Be1 Qf4 Qh1 Qa7 Bd2 Qgg5 Bc1 Ng4 Be3 Nh2 Rh3 Nc5 Rf3 f1Q+ Kd2 Qfg2+ Ke1 Ne4 Bg1 Qff5 Rh3 Nf1 Re3 Qgf3 Nf2 Qd5 Nh6 Qff5 Ng8 Qd2+
1Rbk2r1/1Q1b3R/4p3/2R2n2/B1RqQN2/n1N3R1/rQ2nPpP/1Q1b2K1 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 h5 exf5 c5 g4 Qa5 gxh5 Qc7 b6 Qd8 c4 e6 d4 Bd6 b4 Qh4 b5 Ke7 Ba3 Qf6 Bb4 cxb4 c5 Ke8 c6 Bc5 dxc5 Qd8 c7 d5 b7 a5 b6 g5 h6 a4 c6 g4 f6 b3 f7+ Ke7 h7 b2 Ne2 g3 Nbc3 b1B Ra3 d4 Nf4 Nh6 Bb5 d3 O-O g2 f8R d2 Qe2 d1B Qe4 Rg8 h8Q Na6 b8Q Bbc2 b7 Nf5 Rf7+ Ke8 Rb3 a3 Ba4 a2 Rh7 a1N Qhd4 Bd3 Qh8 Bd7 c8Q Nb4 c7 Ba6 Ra3 Nd3 Qhe5 Bc2 Rc1 Bd1 Qb5 Nc2 Qb1 Bc6 Rb3 Na3 Rc2 Nc1 Qd7+ Kf8 c8R Ra7 Qdd4 Bd7 Rc4 Ke8 Qc7 Ra8 b8R Bc8 Qcb7 Qf6 Rc5 Kd8 Qdb4 Nb5 Ra3 Qd4 Q4b2 Ra6 Nce2 Ra8 Rg3 Na3 R2c4 Nc2 Bc6 Ra2 Nc3 Na3 Ba4 Ne2+
N5RQ/1N1nkn1P/1q1R2P1/1nr3b1/1b1RK1Rr/R3qN2/1B2pQp1/4N3 w - - 0 1 legal: proof: e4 d5 f4 Kd7 c4 b5 cxd5 g5 fxg5 b4 d6 Ke6 d7 b3 axb3 Bg7 b4 Kd6 b5 Bf8 d4 Ke6 g4 h5 d5+ Ke5 g6 Kf6 d6 Ba6 g5+ Kg7 Bh3 Bb7 Bg4 Bd5 exd5 hxg4 Kd2 e5 Ke3 f5 h4 c5 b4 a5 b6 a4 b5 e4 b7 c4 h5 g3 b6 g2 Qd4+ Qf6 d8N c3 d7 a3 d6 c2 Nd2 a2 Bb2 c1B Rh4 Ra7 Nf3 Be7 h6+ Kf8 h7 Nh6 Ne1 Ra4 Rg4 Nf7 Kf4 Rg8 Qf2 e3+ Kf3 e2 Ke3 Na6 b8Q Nc7 b7 f4+ Kd3 Rg7 Ndf3 Nb5 Qc8 Bd2 b8N Bb4 Na6 Qe5 Nc7 Qe3+ Kc2 Qb6 Kd3 Rg8 Na8 Rh8 Nh2 f3 Ke4 Bf6 Nb7+ Bd8 Qg1 f2 Nhf3 f1Q Qf2 Qg1 Qc3 Rg8 Qh8 Ra5 Rc1 a1N Rc3 Nb3 Rd3 Nh6 g7+ Kf7 Re3 Ke6 Rc3 Nf7 g6 Rf8 g8R Bg5 d8R Ra4 d7 Ke7 Rb8 Rc8 d8R Rc6 Rd4 Nc5+ Kf5 Rc8 Ra3 Nd7 Ke4 Rc6 Rbd8 Rc5 Nc2 Qc1 Nce1 Qc3 Rc8 Qd2 Rc6 Qc3 Rcd6 Qd2 R6d5 Qe3+ Kf5 Qc1 Rdf4 Rc2 Rg3 Bc5 Rd6 Qe3 Rh4 Re4 Rf4 Bb4 Rh4 Re6 Rc4 Re4 Rcd4 Rh4 Rgg4 Qd2 Ke4 Rc5 R6d5 Qc3 Rd6 Qe3+
R1Q5/5Rqp/1kB3b1/n1N2RNr/4PQ2/2p1n2b/Kr1NRP1N/1r2N2r w - - 0 1 legal: proof: c4 b5 g4 f5 gxf5 e5 d4 g5 a4 d5 axb5 g4 h4 Be7 Bd2 Bg5 hxg5 Qe7 Bc3 Bb7 cxd5 Qf6 d6 Bc8 d5 Qd8 Bd4 exd4 Kd2 Kd7 Kc2 c5 Kb3 a5 e4 c4+ Ka2 d3 b4 g3 b6 c3 f6 d2 g6 a4 b7 a3 b5 g2 g7 Qb6 f7 Ne7 g8N Qa5 f8R Qc7 b6 Ra4 Qc1 d1B Rf5 Bh5 Nf3 g1R Nh6 Nbc6 b8N+ Kd8 d7 Be8 b7 Bg6 Bb5 Rd1 Ne1 Be8 Nd2 Rd4 Ng4 Qe5 Nh2 Kc7 d8N Be6 Nd7 Qg7 b8R Bg6 Ra8 Na5 Bc6 Rd3 Nf7 Rh3 Nc5 Kb6 Ng5 Rb8 Ra7 Bc8 d6 Nd5 Raf7 Ne3 d7 Rh5 Rg1 Ba6 Rh1 Bf1 Rg1 Bh3 Rg3 Ka7 d8Q+ Rb7 Qc8 Kb6 Nc2 Rh1 Ne1 Nf1 Re3 Rb8 Re2 Ne3 Qc2 Rb7 Qd3 Rb8 Qd6 Rb7 Kb1 a2+ Kc1 Nac4 Qg3 Ka5 Qg4 Rb2 Qf4 Kb6 Rb1 Rb4 Rb3 Rb5 Ra3 Rb2 Raa7 Na5 Ra8 a1R+ Nb1 Ra4 Nd2 Rc2+ Kb1 Rb4+ Ka1 Rc1+ Ka2 Rcb1 Ndb3 Rb5 Nd2 R5b2+
5B2/2prNR2/Q3P1pr/1qk2r1B/2nrbbK1/1Q3PQ1/BNn2B2/B3Q3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 e5 dxe5 f6 e6 f5 e4 Bd6 b4 Rh7 e5 Rh8 Ra2 Bc5 Re2 Bf8 Re4 fxe4 e7 Kd7 Ke2 a5 e8B+ Ke7 h4 a4 d6+ Ke6 h6 a3 h7 a2 b6 a1R b5 e3 Kf3 e2 b7 e1R h5 Qd7 b6 Re3+ Kg4 Ne7 h6 Rf3 Ne2 R8a7 Nd2 Kd5+ e6 Rg8 h8B Qc6 h7 Re3 d7 Ng6 d8Q+ Qd7 f3 R1a4+ Nd4 Rb4 Ba3 Rb1 Nc4 Re5 Nf5+ Kc6 Qe1 Bc5 Qdh4 Rd1 Qhg3 Bf2 Bf8 Be3 Ne7+ Kc5 Bf7 Nc6 b8Q Bb7 Qa8 Ra4 Qa6 Ba8 b7 Rf5 b8Q Nb4 Bd3 Rd2 Bb1 Bf4 Ba2 Nc2 Qb3 Qb5 Rh6 Be4 Be8 Nh4 Rf6 Ng2 Bh5 g6 Rf7 Rd7 Ba1 Rh8 Nb2 Nge3+ Kh4 Rg8 h8B Rc4 Bc3 Rh8 Bd2 Rcd4 Kh3 Nc4 Kg4 Re5 Be3 Rf5 Bf2 Rh6
3b3b/kB1pR1R1/N1Qq1b2/n1n1RKR1/r1b1PQ2/2Rp3b/1N1N3P/6N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Nf6 axb5 Ba6 d4 Ng8 d5 Bc8 c4 a5 d6 Na6 Be3 Rb8 Bd4 cxd4 c5 Rb7 c6 Rc7 dxc7 Nb8 Kd2 f5 Kd3 g5 b4 a4 h6 g4 h7 a3 b6 g3 b7 f4 Ke4 g2 b5 d3 b6 f3 e6 a2 e7 f2 Qc2 Nf6+ Kf5 Rg8 h8R Bg7 Rh7 Ne4 Nd2 Bb2 Rg7 Be5 Re1 a1B e3 Na6 b8N Nec5 b7 Nb4 Na6 Bf6 b8Q Bab2 Be2 f1B Bf3 Rh8 Qa4 Rh4 Qbb5 Bb7 c8N Qc7 Nb6 Qd6 c7 Bd5 Nbc4 Nc6 Qbb4 Ba1 Nb2 Na5 Qf4 Bc4 Bb7 Rg4 Qc6 Rh4 Ngf3 g1B Re2 Bf2 Ng1 Rg4 Re1 Bh3 Rg5 Bh4 c8R+ Kf7 e8R Bh8 Na4 Baf6 Nb2 Bd8 Rc7 Bdf6 Reg8 Ke7 R8g7+ Kd8 Ra1 Bf7 Ra4 Ba2 Re4 Bc4 Ree7 Bf7 Qff3 Ra4+ Qg4 Bc4 e4 Bg2 Qf4 Bh3+ Rg4 Bg3 Re5 Bgh4 Rf7 Bd5 Qb5 Bfg7 Ngf3 Ne6 Rc3 Nc5 Rg1 Bc4 Qc6 Be7 Rg3 Bgf6 Ng1 Qc7 Ba8 Kc8 Rh7 Bd8 Rhe7 Bf1 Rgg7 Bg2 Nb4 Kb8 R3g5 Ka7 Bb7 Qd6 Na6 Bh3+
R2b1BNR/1k6/b4Np1/1q1p2bR/1QR3N1/1P2Q1N1/bP1rn3/KNr4q w - - 0 1 legal: proof: f4 e5 fxe5 c5 d4 b5 dxc5 b4 Kf2 b3 axb3 Ne7 Ke1 Ng8 g4 h5 Bf4 f5 Bg5 Nc6 Bc1 f4 Bg2 Nce7 Bh3 Nf5 gxf5 Qf6 Bg4 hxg4 Be3 Qe7 Bc1 Qd8 Kd2 d5 e4 Kd7 c4 Kc7 Kc2 a5 h4 g6 h5 f3 e6 f2 h6 f1B h7 g3 f6 g2 c6 a4 e5 a3 c5 a2 e7 Kb8 e8N Bf5+ Qd3 Qd7 f7 Ne7 e6 Ra4 c7+ Ka7 c8N+ Kb7 c6+ Kb8 c7+ Kb7 Bh6 Be4 Nf6 Qe8 Ne2 g1B Ng4 Nc6 e7 Ra6 Rh5 Be3 Ng3 Bg5 Bg7 Qd7 e8N Bfe7 f8Q Bd8 Nef6 Ra8 Ne7 Rc8 Neg8 Nd4+ Kc3 Be2 Qe3 Ba6 Qb4+ Qb5 Bf8 Ne2+ Kd2 Rb8 c8R Ra8 Rc4 Rc8 Rd4 Rc3 Rc4 Rd3+ Kc2 Bf5 Nd2 Be4 Rah1 a1Q Rf1 Qe1 Nb1 Bf5 Rff4 Qh1 Rc8 Be4 Ra8 Bf5 Rc4 Be4 Ne7 Rg8 h8R Rg7 Neg8 Rc7 Qg1 Bf5 Na3 Rc5 Kb1 Rd2+ Ka1 Bb1 Qe3 Ba2+ Nb1 Rc6 Rd4 Rcc2 Rc4 Rc1
2kb2nN/B3qqR1/1b2P3/1Qp2R2/1K5B/2Bpn3/bP2b3/Q1RB1RBr w - - 0 1 illegal: No possible last move, all moves rejected
1r1K2b1/3BRp2/qp4Q1/4PP1N/4rQ1R/r2r3B/1r1b3B/kBQQ2Qb w - - 0 1 legal: proof: b4 e5 a4 b5 axb5 e4 b6 e3 b5 Bc5 b7 Bf8 b6 Nc6 b8Q Be7 b7 Nb4 Na3 Na2 Nc4 Nb4 dxe3 Bd6 e4 Bf8 e5 Na6 g4 h5 Bd2 h4 Nb2 Nc5 Nc4 Ne6 Nb6 cxb6 Bc1 Nf4 h3 g5 Ra4 Nf6 Ra1 N4h5 gxh5 g4 Rb1 g3 Ra1 Ng4 hxg4 Bc5 Qd4 Bd6 Qd1 Bf8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 e4 d5 c4 h3 c5 d4 g5 h2 g6 d3 h6 d2 h7 a4 c6 a3 c7 a2 g7 g2 g8Q Ra4 Ne2 g1R Ng3 Ra8 Nh5 Ra4 Bd3 Qd6 Qg6+ Ke7 Bb1 Rf1 Kg5 Qa3 f4 Bd7 c8B Bf5 e6 Rf2 e5 Rg8 h8Q Re4 Qh6 Qa6 Bd7 Bg7 Qc7 Rb8 Qg1 d1R Qc2 Rd6 Qcd1 Rb2 Be3 Re8 b8Q Rd3 Qc7 Rb8 Qcc1 Rb7 Bd4 Bf8 Bf2 Bg7 Bg3 Bf8 Qgg7 Bh7 Qgg6 Bg8 f5 Kd8 Kf6 Bb4 Qhf4 Bd2 Bc6 Kc8 e7 Kc7 Bd5+ Kd7 Bc4 Kc6 e8B+ Rdd7 Be2+ Kd5 Bf1 Rd8 Bh3 Rdd7 Bc2 Kc4 Bd3+ Kb4 Bb1 Rd3 Bd7 Ka3 Ke7 Be1 Qd4 Bb4+ Kd8 Bd2 Rg1 h1B Bh2 Rc7 Rg4 Rb7 Rh4 Re1 Bc2 Re4 Rb1 a1R Q4g1 Ra2 Ra1 Qa4 Qe2 Qa6 Bb1 Kb3 Qef1 Ra3 Qfd1+ Rc2 Bg3 Rb8+ Ke7 Qa4 Rg4 Ra2 Bb5 Qc4 Bh2 Ra5 Qde1 Rb2 Rh4 Qc8 Ra4 Raa8 Rc4 Ra3 Rc7 Qa6 Rd7 Rb7 Kd8 Ra5 Qed1+ Ka3 Bc2 Ka2 Bb1+ Ka1 Bc6 Raa3 Ba4 Rdb3 Re7 Rd3+ Bd7 Rb8+
2Q3N1/1bn1b1R1/3pn1R1/Bpkb3P/4qQQN/RPn4Q/R5n1/1qKQ4 w - - 0 1 legal: proof: a4 g5 d4 c5 dxc5 b5 f4 e5 a5 h5 g3 Rh6 Bh3 Rb6 axb6 a5 Bf1 Ra7 Bh3 Rc7 Be6 Rc6 Bg4 f5 fxe5 f4 Bh3 Rf6 g4 Rf5 gxf5 Bd6 Bg4 hxg4 Na3 Be7 Nb1 Bf8 Kd2 Ke7 e4 f3 c4 g3 h4 g2 h5 f2 e6 f1B f6+ Ke8 e7 d6 f7+ Kd7 e8R Kc6 b7 g4 b3 a4 e5 a3 e6 g3 e7 a2 Rh2 Qc7 Nf3 g1Q Nh4 g2 Nc3 Qd7 Nd5 Be2 Nf6 Bg7 f8Q Na6 b8Q Bb7 Qc8+ Nc7 Qf7 Qh3 Qg4 Nh6 Ng8 Bh8 Qff4 Bf6 Ra8 Bg5 e8R Be7 Ra3 Qd4+ Kc2 g1N Rg2 Bf1 Bd2 Qhd3+ Kc1 Nf7 Ba5 Q4e4 Rd8 Be2 Rd7 Bf3 Qh3 Nd8 Rg6 Nde6 Qhg4 Bg5 Rf7 Be7 Rfg7 Bg2 Qh3 Nf3 Qhg4 Nd2 Qh3 Nb1 Qhg4 Nc3 Qh3 Kd7 c6+ Kc8 c5 Bf3 Rb1 a1N Rb2 Nc2 Rba2 Ne3 Qhg4 Ng2 Qh3 N7d5 c7 Kd7 Qhg4 Kc6 c8Q+ Ndc7 Qd7+ Kd5 c6 Kc5 Qh3 Na6 c7 Bd5 c8Q+ Nac7 Qfg4 Bb7 Qdd8 Qa4 Qe8 Bfd5 Qf7 Qae4 Qff4 Qb1+
n2k1b1Q/q7/R2r2Qn/1p3NrR/P2BNb2/Q1nPp3/p5R1/1QQ2KR1 w - - 0 1 illegal: No proof kernel
1NN3k1/1br2np1/pNR1NrB1/bPB1P3/p1q1r3/4Q3/B1B1nK2/3B2Q1 w - - 0 1 legal: proof: g4 e5 b4 h5 gxh5 c5 f4 c4 fxe5 c3 a4 Ke7 a5 Rh7 b5 Qb6 axb6 Kd8 Ra6 bxa6 dxc3 Rh6 c4 Rh8 c5 Ke8 e4 d5 c4 f5 h4 Kf7 b7 d4 e6+ Ke8 h6 f4 h5 f3 e5 d3 c6 d2+ Kf2 a5 c7 a4 e7 Kf7 e8B+ Ke6 h7 a6 c5 Nc6 b8N Na5 h6 Nb7 c6 Nc5 Bg6 Nf6 Bfd3 Rg8 h8N Bd6 h7 Be7 Rh6 Ra7 Nc3 Ne8 Bc2 Bd7 c8B Bg5 c7 Nd6 Nd5 Bf6 Ba3 Rf8 Ne2 Nf7 Nb6 Bd8 Qg1 d1R Nd4+ Ke7 Bb4 Bc6 Be6 Bb7 c8B Re1 Ba2 Re4 Bg4 Ke8 B4h5 Ne6 Bc5 Nf4 Ne6 Bc7 Kf1 f2 Bhd1 Nd5 Kg2 f1Q+ Kg3 Qc4 Kf2 Bc8 Bf5 Bb7 Ng6 Bd8 h8Q Nf4 Ne7 Bc7 Nec8 Bd8 Nd5 Ba5 Qh7 Ng5 Ndb6 Kf7 Qg6+ Kg8 Qh5 Rf6 Qe2 Nf7 Bg6 Qd5 Rh3 Qc4 Rc3 Ba8 Qe3 Rc7 Rd3 Bc6 Rd6 Bb7 Rc6 Ne2+
8/3K2qk/2rp3P/1nR2r2/NbRNR1B1/1p1Q3P/1R2qp2/NNbR1Q1n w - - 0 1 legal: proof: d4 c5 dxc5 a5 f4 e5 fxe5 b6 b4 h6 bxa5 Bb7 Bg5 Bf3 h3 Bg4 h4 Bh3 gxh3 hxg5 Kf2 f5 Kg3 Kf7 e4 Kg6 c4 b5 a4 b4 e6 g4 Kf4 d6 a6 b3 h5+ Kh7 a5 g3 a7 g2 c6 g6 c7 Be7 c8R Qc7 e5 Kh6 a6 Nf6 c5 Nfd7 c6 Qa5 c7 Rh7 Rh2 Nb6 Qd3 Bh4 e7 Qa3 e8N Nc4 e6 Qa4 e7 Qa2 Nf6 Nc6 e8R Nd2 Ne2 g1Q Nd5 Nd4 Nb4 Nb5 Nd4 Be1 Re4 Rf7 Be2 Kh7 h6 Nf1 Bg4 Ng3 Rb2 Nh1 Nbc2 Bb4 Qf1 Rb8 a8N Rb6 a7 Rc6 Nb6 Qg2 Kg5 f4 a8Q f3 Na4 Qg3 Qa6 Qe5+ Bf5 Qg7 Bg4 f2 Rg8 Rf3 c8R Rf4 Rge8 Rf7 R8e5 Rf5+ Kh4 g5+ Kh5 Rb6 Rc4 Rc6 Rd5 Ba3 Rdc5 Bb4 Be2 g4+ Kh4 g3 Bg4 g2 Qd3 Rf6 Kh5 Qh8 Kg5 g1B Qf1 Bh2 Qd3 Re6 Kf5 Bf4 Qf1 Rg6 Qd3 Rg7 Ke6 Rg5 Kd7 Rd5 Nba3 Qe5 Rd1 Bc1 Na1 Qg3 Nb1 Rf5 Rbd2 Qc2 Qf1 Qcd3 Rb2 Qe2 Rc3 Na7 Qd3 Nb5 Rcc2 Qe5 R2c4 Qg7+
2N1rQ2/bP3p1k/Pnp4r/Q3Q3/Q1R4Q/4pRN1/Kb2b1Rq/2r2B1R w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Nf6 bxa5 b4 c4 Ng8 e4 Ke7 e6 d6 e5 Nc6 Bb2 Na7 Bd4 Nb5 cxb5 Ke8 e7 Kd7 Bc3 Ke6 Bb2 Kd5 e6 Kc5 Be5 dxe5 Nf3 Kd5 Ng1 Kd6 e8R g5 a4 g4 h4 e4 d4 b3 Kd2 g3 Kc3 b2 Kb3 e3 a6 g2 a5 c6 b6 Rh7 a7 Rg7 h6 Nf6 e7 Ke6 d5+ Kf5 b7 Kg6 h7 Qc7 h8Q Qe5 a6 Qd6 h5+ Kg5 h6 Kg6 h7 Qc7 d6 Ne4 d7 Qf4 d8Q Nd6 Na3 b1R+ Ka2 Ne4 Ne2 g1B Ng3 Nf2 Qa4 Nd1 Nb5 Rc1 Nd6 Bh2 Qda5 Bg4 Nc8 Nb2 Rg1 Bh5 Rg2 Nc4 Rb1 Rb8 a8Q Nb6 Rb5 Be2 Rf5 Qd6 Rf3 Rg8 Rd8 Bg7 e8Q Bb2 Qee5 Re8 Qf8 Re6 h8R Qc7 Rd4 Rf6 Rg8+ Kh7 Rc4 Rh6 Qfe7 Qd6 Qh4 Qd2 Rg1 Qc2 Rh1 Qd2 Nd6 Re8 Nc8 Qc2 Ne4 Bf4 Rg2 Qd2 Ng3 Qc2 Qee7 Bb8 Qee5 Ba7 Qab8 Qf5 Qbd6 Qh3 Qf8 Qh2
q1rr2QQ/2RB4/P1Qp1N2/2bn1P2/K2QBp1B/1B1p4/1b2kB2/2Rb1q2 w - - 0 1 illegal: No proof kernel
k2NQ1R1/b1rp2pq/3N2r1/2r5/2nP2qN/p1PN1K2/QB2nQQ1/2Q2R2 w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 b5 bxc5 b4 g4 b3 f6 Bb7 axb3 Kf7 b4 Ke8 b5 Bc8 f4 h5 g5 Rh6 f5 Rh8 Be2 Bb7 Bf3 Bd5 Bg4 hxg4 g6 Bf7 Ra6 Qb6 gxf7+ Kd8 Ra4 Kc8 Ra6 Qd8 Ra1 Kc7 Ke2 Kb7 d4 a5 h4 e5 b6 e4 c3 e3 c6+ Kc8 c7 Kb7 c8N a4 h5 g3 h6 g2 h7 a3 Nd6+ Kc6 b7 Qc8 Bb2 Kb6 Kf3 Ka7 Nh3 g1Q Nf2 e2 Nd2 e1R Nd3 Re7 Qc1 Na6 b8N Nc5 Nc6+ Ka6 Rh2 Ra7 Nd8 Re6 Rh4 Be7 f8Q Nb3 f7 Nh6 f6 Rc7 Qe8 Ka7 f8Q Ng4 f7 Ka8 Qg8 Ne3 f8Q Rg6 Qgf7 Rg8 h8Q Nc4 Rh2 Qb8 Qh3 Rh8 Rh1 Rh5 Qg2 Rhc5 Rh8 Qh2 Rg8 Qh7 Ke4 Qb6 Nf3 Qa6 Nh4 Qa5 Qcc2 Nc1 Kf3 Ne2 Rf1 Qa4 Qc1 Qd1 Ne4 Rb5 Qe6 Bc5 Nd6 Ba7 Qff4 Rbc5 Qff8 Na5 Qa2 Nc4 Qff4 Qd2 Qfg3 Qg5 Q3f2 Qg4+
RN6/p3P3/1R1n1pr1/5R1p/n4K1N/qn2QQ1Q/1kp2P1b/R2BQb1R w - - 0 1 legal: proof: d4 b5 h4 d5 c4 g5 cxd5 e5 dxe5 b4 h5 b3 axb3 Nh6 b4 Ng8 b5 Be7 Ra6 Bd6 Ra1 Bf8 g4 Bd7 Bf4 Bh6 Bg3 Bc8 Bh4 gxh4 g5 Bf8 g6 Na6 g7 Rb8 Ra5 Rb6 Ra1 Rg6 hxg6 Qd6 Rh3 Qe7 Rh1 Qd8 Kd2 Ke7 Ke3 c5 b4 h5 b6 h3 d6+ Ke6 b5 h2 b7 c4 b8Q f6 d7 c3 b6 c2 b7 Qa5 d8Q Bd7 Nf3 Bb5 Q8d4 Ba4 Nc3 Kf5 e6 Qb5 e7 Qc4 e8Q Qc5 Nh4+ Kg5 Nd5 Qb4 Nb6 Nh6 g8R Bb3 g7 Nf7 Qbc8 Bd6 b8R Qa3 Nd7 Rh6 Rb6 Nc5 Nb8 Na4 Qh3 Rg6 Q4d2 Be5 Q2e1 Nd6 Bg2 Bg3 Bf3 Bc4+ Qd3 Ba6 Qe7 Bb5 Rc8 Be5 g8R Bc4 Rc5 Ba6 Kd2 Kf4 e4 Bc4 Qc3 Bb5 Bd1 Bf1 Rg1 h1N Qee6 Bd4 e5 Ng3 Rh1 Ne2 Qe7 Ke4 e6 Be5 Qcf3+ Kd4 Rh8 Bh2 Rf5 Qa2 Rg8 Kc4 Ke3 Nc1 Rh8 Nb3 Rg8 Bg1 Kf4 Qa3 Re8 Bd3 Qee3 Kc3 Rh8 Kb2 Qe1 Nb5 Qc5 Nd6 e7 Bf1 Qce3 Rh6 Na6 Rg6 Ra8 Rg8 Nb8 Rg6 Qhg2 Bh2+ Qgg3 Bg1 Qh3 Bh2+
1R5N/Bb2QB2/npr1p2B/1Qpn4/B1Pq1N2/k1p1r2P/3Q4/2qBQ2K w - - 0 1 legal: proof: e4 h5 a4 f5 exf5 a5 g4 e6 gxh5 c6 c4 Rh6 d4 Qg5 d5 Qd8 d6 Rh8 b3 Be7 Ra2 Bg5 Ra1 Be3 Ra3 Bb6 b4 Bc7 dxc7 d5 bxa5 d4 Rc3 dxc3 f4 Ke7 Kf2 g5 Kg2 g4 f6+ Kf8 h3 g3 h6 Bd7 c8B Qc7 f7 Ke7 f8B+ Ke8 h7 Qd6 a6 Nh6 f5 Qc5 a7 Qe7 f6 Qb4 a5 Kd8 f7 Kc7 a6 Kb6 Be3+ Ka5 Nd2 Qe7 Be2 Kb4 Ne4 Ng8 Bh5 Qc5 Ng5 Nf6 Qd2 Nd5 Ne2 Ne7 Nf4 Ka3 Bh6 Qb6 f8Q Qd8 Rb1 Qe8 Nf7 Qd8 Kh1 Rg8 h8Q Qb6 Qe5 Qd8 Qb5 Rg5 Nh8 Re5 Bf7 Qb6 Qe8 Nd5 Qe7+ Qc5 Bd4 Re3 Rb2 Be8 Bd7 Qd6 Bb6 c5 Bc6 Bd7 Qe1 Bc8 Bce8 Nc6 Rb1 Rb8 a8Q Ncb4 a7 Na6 Bd7 Qe5 Bc6 Qd4 Rb2 Ndc7 Bf3 Nd5 Bd1 Bd7 Rb4 Bc6 Ba4 Rf8 Qad8 Re8 Qdd6 Rc8 a8B Rc7 Rb2 Rc8 Ba7 b6 Rf2 Rc7 Rf1 Bb7 Bd1 Bc8 Bc6 Bb7 Bd7 Nf6+ Qd5 Rc6 Qg2 Nd5 Qgd2 Rc8 Qb1 Rc7 B7a4 Rc6 Qb5 g2+ Kg1 Qe5 Rf3 Qe4 Rg3 Qc2 Rg8 Qc1 Rb8 Re5 Kf2 g1Q+ Kf3 Qe3+ Kg2 Qd4 Kh1 Re3
B1KQNB2/1b2pBB1/n6p/2rp1p2/p2N1kP1/3nN3/1P2R1BN/r1Q1q3 w - - 0 1 legal: proof: d4 b5 e4 f5 exf5 Kf7 a4 c5 dxc5 g6 axb5 Bg7 f6 Ke6 f7 Bf8 g4 Ke5 f4+ Kf6 f5 Bg7 Ra4 Ke5 Rf4 Bf6 Rf2 Bh4 f6 Bg3 hxg3 Ke6 Rf5 gxf5 Kf2 Ke5 Kf3 a5 f8B d5 c4 a4 c6 Ra6 b6 Bb7 g5 Ra8 g4 Ba6 g6 Bb5 c7 Nd7 c8B Ra5 f7 Ndf6 c5 Qc7 g7 Qa7 b7 Qa6 b8N Qb6 c6 Ne4 c7 Nc5 Nd2 Be8 Rh2 Qe6 Nc4+ Kf6 Kf4 Bd7 Ne3 Bc6 Nf3 Ba8 Re2 Na6 Nh2 Bc6 Bg2 Ba8 Bb7 Qc6 c8N Nc5 Nd6 Qd7 Nc6 Nh6 g8B Qe6 Nd4 Na6 Ne8+ Kg6 Bg7 Rc5 f8Q Nf7 Bd2 Ne5 Qc1 Qf6 Be6 Qh4 Qg8 Qe1 Bc6 Bb7 Bc3 Bc8 Ba8 Bb7 Qf8 h6 Bg8 Bc6 Bf7+ Kh7 Nd6 Rg8 Qd8 Rf8 Ne8 Nd3+ Kf3 Rg8 Bf8 Rg5 Be6 Rh5 Bf7 Ndb4 Kf4 Rh4 Ke5 Nd3+ Ke6 Rh5 Nhf1 Rh1 Nh2 Rg1 Bg8+ Kg6 Bf7+ Kg5 Bd2 Bb7 Kd7 Bc6+ Kc8 Kf4 Bc3 Qd2 Qc2 Ra1 Qc1 Qd1 Nb5 Qg1 Bcg7 Qe1 Nd4 Bb7+
K1bN2Q1/1bR2Qr1/P1R5/QQr1k3/1BBp3B/1rn3b1/3P1qnB/3B2qn w - - 0 1 illegal: No possible last move
1B1bQ1b1/Pp3K2/N2rRNN1/qn1r3R/N4R2/r1n3Nn/1P2Qb2/kq5R w - - 0 1 illegal: No proof kernel
K3BB2/QrRbR3/Rpnb4/BP1RN1r1/1r1Q2Pq/8/2n1b2n/1B3kBb w - - 0 1 legal: proof: e4 g5 b4 f5 exf5 d5 c4 g4 cxd5 g3 Na3 a6 Nb5 Bg7 hxg3 Bh6 g4 Bf8 g5 Ra7 Nd4 Ra8 b5 a5 Nc6 Bh6 Nb4 axb4 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 e5 g4 h5 d4+ Kb6 f4 c5 f6 h4 f7 c4 d6 c3 Kd5 h3 a5+ Ka7 f5 e4 a6 Kb6 g6 c2 a7 e3 g7 e2 f6 e1N d7 h2 Nf3 b3 Bd3 b2 Be3 c1R Bb1 Rc7 Ne5 Nh6 g8B Bb4 f8R Nf3 f7 Nf5 Re8 Qh4 f8B Rh5 d8B Rg5 Bf7 Be7 Rf1 h1B Bg1 Nh2+ Rf3 Ba3 Re7 Ka5 Bh5 Kb4 Be8 Ne3+ Kd6 Nc2 d5 Bf5 Rc3 Bd3 Ra2 Be2 Qd2 Rc4 Bdb6 Re4 Kc7 Rf4 d6 Re4 Bbe3 b6 Kb7 Rc4+ Qd5 Rd4 Rcc7 Nc6 d7 Kc3 Bef2 Kd2 d8R Bc5 Be3+ Ke1 Bd2+ Kf1 Ra6 Re4 Ba5 Rb4 Qe4 Rc8 Rd5 Bd6 a8Q Rd8 Rcd7 Rc8 Qa7 Rc7+ Ka8 Rb7 Ba2 b1B Qd3 Na3 Qd4 Bf5 Bb1 Nc2 Rc7 Bd7
3Q4/1n3N1Q/BNPrpN2/br2PqB1/1B2nq2/K1N4q/B1r2rbR/k4B2 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 h5 g4 Rh6 g6 Rh8 b4 Rh7 g5 Rh8 Ra3 Ba6 Rg3 Bc8 Rg4 hxg4 Kd2 d5 Kc3 Kd7 Kb2 Ke6 h4 Ke5 c4 f5 e4 a5 c6 f4 c7 e6 b6 d4 h5 d3 h6 Kd4 g7 g3 b5 f3 g6 a4 e5 d2 b7 a3+ Kb3 g2 c5 f2 h7 a2 b6 a1R Nc3 Na6 b8B Qh4 b7 Rb1+ Ka3 Nf6 g8N Qh3 g7 Rb5 Rh2 Ne4 Nf6 Rg8 Qc2 d1R h8Q Bd6 Bd2 Rf8 g8B Rc1 Qb1 Rc2 Bh7 Bd7 c8B Bc6 Bf5 Bc7 Bg5 Ba5 Bd6 Ra7 b8N Rd7 Be7 Rd6 Nbd7 Bd5 c6 Nac5 Qg8 Nb7 Nb6 Rf7 Qd8 Rf8 Bc4 f1Q Ba2 Qf4 Nf3+ Kd3 Bg6 g1Q Bh7 Qgg2 Bf5 Qh7 Bh3 Qhf5 Qh1 Qgg3 Bg2 Qgh3 Qb1 Rd7 Bb4 Rd6 Qh1 Rd2 Bf1+ Kc2 Nh4 Kc1 Ng6 Rc2 Nh8 Rf7 Qf3 Rf8 Qh5 Rf7 Qh7 Rf8 Ka4 Kb2 Nf7 Ka1 Ka3 Rg8 Bh4 Rgg2 Bg5 Rgf2 Bg2 Nbc5 Ba6 Nb7 Bf1 Nd2 Ka4 Bg2 Ka3 Ne4
3RR1Q1/Qb2B3/5qK1/NkPp2NQ/nN1PQ3/b2rr3/b3n1nn/2QqN3 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 Ke2 d5 Ke3 Kd7 Kf4 Kc6 Kg5 e5+ f6 a5 d4 g6 f4 a4 c4 b4 h4 a3 f5 e4 c5 e3 h6 b3 h5 e2 h7 e1N h6 a2 Nc3 b2 Nf3 Qc7 f7 b1B f6 Nd7 b8Q Bd3 b7 Bg7 f8N Ra3 f7 Qb6 Qa7 Bb1 Ne6 Ng2 f8Q Ngf6 Ne1 Ng4 Qf4 Re8 h8Q Nh2 h7 Qa6 Be3 Nb6 Qe4 Na4 Qg8 Bh6+ Kf6 g5 h8Q g4 Qc1 g3 Ng5 Rb3 Kg6 Qb6 Rf1 Qd8 Rf8 Qf6+ Kh5 Re5 Rd8 Ra3 Bf4 Re8 Bd6 Re5 Nb5 Rd3 Nc7 Re6 Na6 Kb5 b8N Bb7 Nc6 Re7 Nf7 Bd2 Na5 Bb4 Ng5 Ba3 Nb4 Re8 Qeg6 Ree3 Qhh6 Bc2 Be7 Bb3 Rb1 a1Q Qe4 Ba2 Rb2 Qb1 Re2 Qc2 Qhg6 Qd1 Q6f7 Nh4 Qfh7 g2 Qhg6 g1N Kh6 Qf4 Qh5 Ng2 Kg6 Qh4 Rf2 Ne2 Rff8 Qf4 Rfe8 Qf6+
1krn2Q1/p1qqRRKn/P3R1b1/2N2R1r/n4bB1/RB1Q4/1B1n1P2/1B4q1 w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f6 g4 Ne7 Nd2 Ng8 Ne4 f5 gxf5 Ke7 Nf6 Kf7 Ng4 hxg4 Nf3 Ke7 Ng1 Ke8 Kd2 g5 Ke3 d5 Kd4 Kd7 c4 Kc7 a4 b5 e4 g3 h4 b4 a5 g4 e6 g2 Ke5 b3 a6 b2 c6 b1N e7 g3 e8R d4 h5 d3 c5 d2 h6 Be6 h7 Bb3 f6 Kc8 c7 Na3 f7 Bh6 f8R Ne7 Kf6 Ba4 e5 Nc2 e6 Bc6 Bb2 Bb7 Bd3 Nf5+ e7 Na3 Nh3 g1Q Ng5 g2 Rf7 Nc6 Ne6 Nd6 Bb1 Ndb5 Rh5 Nc3 Rf5 Nc4 Ra3 Bf4 Kg7 Na4 Qc2 d1Q Qd3 Rf8 h8R Nd2 Rh6 Rh8 Rhf6 Rh5 Rg6 Nd4 Rh6 Be4 Rhf6 Kd7 c8B+ Kc6 Rg6 Qc7 Bb7+ Kd7 Bd5 Rc8 c6+ Kd6 Nc5+ Ne6+ Kf6 Nd8 Rh6 Qd7 Bb3+ Kc7 Kg7 Kb8 Rhf6 Qh2 Re6 g1N c7+ Ka8 Rg8 Nh3 e8Q Ng5 Rh8 Qc2 Qg8 Qg1 Rhh6 Qc4 Ree7 Qcc1 Rhe6 Nh7+ Rg5 Bg6 Rgf5 Rb8 c8B Qc2 Ne4 Qcc7 Nc5 Rb5 Bb7+ Kb8 Bf3 Rb6 Bg4 Rc6 B1c2 Qb6 Bb1 Rc8 Rf8 Qbb7 R8f7 Qbc7
2Bnnn2/R5p1/1K1Q1R2/N4n1R/bb1r2PB/P2RQrR1/B1q2B2/4rq1k w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 d5 c4 h4 cxd5 Rh7 g4 Nh6 Nc3 Rh8 Nce2 Ng8 Ng3 hxg3 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 d4 c5 h4 e5 f4 b6 f6 c4 a6 c3 h5 g2 d6 c2 h6 Ne7 f5 Nd7 f7 Nf6 a7 Nfg8 d7 Qc7 d8R Ng6 d5 Nf6 h7 Ne8 f6 Bb4 d6 Rf8 Ne2 Kf3 h8Q g1N d7 e4 Qd6 e3 Rh5 Nh3 Qh6 Ng5 Nd4+ Kf2 a3 Kg1 Nc6 e2 Na5 e1R Bc4 Ne6 Ba2 Bb7 Bb2 c1N Qe3+ Kg2 Rb1 Qc2 Bd4 Ne2 Rb3 Ng3 Rc3 Rb8 a8B Bc6+ Ka6 b5 Bb7 Nf5 Kb6 Ra8 Rd3 Ra7 Ra8 Nd8 Bc8 Rc7 Rh3 Ra7 Rg3+ Kh1 Bc5 Bd5 Bd4 Bb3 Bc5 Rc7 Ra7 Ba4 Bd4 Rc4 Bc5 Rg8 f8R Rd4 f7 Rh8 Rg8 Rh3 Rh8 Nf8 Rh6 Bd2 Rh5 b4 Ra8 b3 Ra7 Nc6 d8B b2 Bh4 b1Q+ Ka6 Bb4 Kb6 Ng6 f8R Nd8 Rf6 Nf8 Rg2 Rf3 Rg3 Qbd1 Qee6 Rd5 Bf2 Rd4 Qe4 Qde2 Qe3 Qf1
1R1Q2NR/8/2p3qB/q2bk3/KnR4n/2P1qRPN/1rN2Nbr/2Nb1Qb1 w - - 0 1 legal: proof: f4 b5 d4 e5 dxe5 h5 a4 g5 axb5 h4 fxg5 h3 g3 Rh4 Bg2 hxg2 Nh3 Rh7 Ng1 Rh8 Kd2 Ke7 Kc3 Ke6 Kb3 d5 h4 f5 e4 a5 c3 f4 h5 f3 g6 f2 b6 f1B h6 c6 h7 d4 b7 d3 g7 d2 Na3 Ba6 Nc2 Qf6 Ka4 Qd8 b4 Qc7 b5 Nf6 g8N Nd5 b6 Qd7 Nh3 g1Q Qf1 d1B Bh6 Qd8 Rh2 Ne3 Rf2 Nf5 Rf3 Qd3 Rb1 Qd7 Rb4 Qf7 Rd4 Bd3 Rc4 Na6 b8N Qe3 b7 Qg6 Nd7 Nb4 b8Q Ba6 Qd8 Rb8 Nc5+ Kf7 Qf2 Bf1 Nb3 Ke6 Nc1 Bg2 Qf1 Nh4 Nf6 Qd4 Ng4 Bc5 Ngf2 Qe3 Qf8 Kd7 e6+ Kc7 e7 Kd6 e8N+ Ke5 Nf6 Bd4 Ka3 a4 Ng8 Bc8 Qd8 Be6 Rf7 Bd5 Rf3 Ke6 e5 Rb7 Kb2 a3+ Kb3 a2 Ka4 Bb6 Bf4 Kf5 e6 Bc5 Bh6+ Ke5 e7 a1Q+ Kb3 Qa5 e8R+ Qe6 Qd7 Ba7 Rb8 Qg6 Qd8 Qd2 Ne4 Bg1 Nef2 Qe3 Ne7 Rf8 h8R Rf5 Ng8 Rh5 Rf4 Rb6 Rf3 Nf5 Nf4 Rh2 Bg5 Nh4 Bh6 Rb7 N4h3 Na2+ Qb6 Qb5+ Ka3 Qa6+ Qa5 Rb2 Ka4 Nb4 Qd3 Qab6 Qf1 Qbc5 Qd8 Qa5+
R3r1rb/PQ3b1p/Rq2qNRn/Q5Q1/B1r3n1/2RQ1Q1P/2K5/q2N2kq w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 g5 f4 Qd6 f6 Qd8 f5 Kf7 Ba3 Ke8 Bd6 Nh6 Be5 Ng8 Bf4 gxf4 g4 Kf7 d4 b5 Kd2 e5 a4 c5 d6 e4 d7 e3+ Kc2 f3 h3 c4 g5 c3 d5 e2 d6 e1Q a6 b4 a5 f2 a7 Nc6 a6 Be7 g6+ Kf8 f7 Kg7 f8R Kh6 g7 Kg5 f6 Kh4 f7 Kg3 Nf3 Nf6 g8R+ Ng4 Nfd2 Qe8 d8Q Be6 d7 Ne5 Rg6 Rg8 Bb5 Kg2 Qa5 f1Q d8Q Bf6 Ba4 Bh8 Qg5 Qf6 Rh2+ Kg1 Ne4 Qb5 Rb8 Qb6 f8Q Bf7 Qd3 Qfe6 Nf6 Qe4 Qe7 Qh1 Qb7 Re8 Rd8 Rc8 a8Q b3+ Kd1 b2 a7 Rg8 Rc2 Rb8 Rf8 Re8 Rc1 c2+ Kd2+ Kh2 Nc3 b1Q Nd1 Kg1 Qbf3 Qba2 Qab7 Qab2 Ra3 Qb1 Rc3 Qa1 Rb1 c1R Rbb3 Rb1 Ra3 Rb4 Kc2 Rc4 Ra2 Nc6 Ra3 Ne7 Ra2 Nf5 Ra3 Re7 Ra8 Ree8 Rb3 Qd4 Rb6 Nh6 Ra6 Qdb6
3b4/2BP1qRp/BN1K1RrR/brBQ4/B2nrBkP/2n5/1Q3R2/2b2r1b w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 Kd7 f6 Ke8 f5 Kd7 Nc3 Ke8 Nce2 Nd7 Nf4 gxf4 Ra6 Nb8 Ra5 Ba6 Ra1 Bc8 Ke2 Kd7 Kd3 e5 Ke4 a5 g4 c5 d4 c4 b4 a4 b6 c3 g5 c2 d6 f3 Kd5 f2 g6 a3 f7 e4 b7 e3 f6 a2 b5 e2 b6 e1B g7 Ra4 Bf4 c1B Ne2 Bb4 Nc3 Bca3 Ba6 Be7 f8R f1R f7 Nh6 g8B Nc6 b8Q Bf6 b7 Ba5 h4 Rc4 Rh2 Rb4 Na4 Be5 Rf2 Qe8 Qd3 Na7 Nb6+ Kd8 d7 Ke7 d8R Kf6 Qc4 Kf5 Rd7 Bf6 Kd6 Bd8 d5 Kg4 Re1 a1R Re6 Rg1 Qa2 Rg2 Qa8 Rag1 b8B Bb7 Bc7 Bc1 Qb2 Rb5 Rde7 Rf1 Rg6+ Kh3 Ree6 Bc6 Rg7 Rg6 Rf6 Kg4 Qb7 Qe1 Re8 Qe3 f8B Qb3 Ree6 Qf3 Bf7 Rg8 Be8 Nf5+ Ke5 Qb3 Bc5 Nd4 d6 Bh1 Qd5 Qc4 Bc6 Re8 d7 Re7 Kd6 Qb3 Rf5 Qf3 Ref6 Re4 Rh5 Qb3 Rh6 Qa2 Qe5 Qf7 Qd5 Ne2 Bcb7 Nc6 Ba8 Ncd4 Bc6 Rb3 Bcb5 Nc3 Ba4 Rb5
r7/KBB1Q2N/p1PB3r/bQ2p3/1rQQ4/PRq1nb2/B1k2bQ1/1nn4N w - - 0 1 legal: proof: d4 c5 b4 e5 bxc5 h5 dxe5 f6 g4 Na6 gxh5 Nb8 e6 Rh6 Na3 Rh7 Nb1 Rh8 e4 Be7 a3 Bf8 e7 Kf7 e5 Ke6 Bf4 Kf5 e6 Ke4 Bc1 Ke5 Ra2 Ke4 Rb2 Ke5 Rb3 Ke4 Rg3 Ke5 Rg5+ Ke4 Re5+ fxe5 Kd2 Kd5 Ke1+ Kc6 Kd2 d5 Kc3 g5 Kb4 b5 e8Q+ Bd7 h4 a6 f4 g4 c4 d4 h6 d3 h7 d2 h5 g3 f5 g2 h6 Ne7 f6 Ra7 f7 Nf5 e7 Qb6 Ne2 g1B Rh3 Qb7 Ka5 b4 Ng3 b3 Nh1 b2 Rb3 Nh4 Nc3 b1R Ne4 Nf5 Nf6 Rg8 h8Q Rg5 h7 Bf2 Qg8 Nd6 h8Q Bh6 f8B Rh5 Qhg7 Ra8 Nh7 Qc8 Qg2+ Ne4 Bd3 Rb2 Bb1 Bf4 Qef7 Rh6 Ba2 Bg4 e8Q+ Nd7 Bd6 Bf3 Qfe7 Nc3 Qdg1 d1N Bd2 B4g3 Qge6 Be1 Qd4 Nb1 Bb4 Bgf2 Bc7+ Kb7 Q6f7 Ne3 Qfg8 Ka7 c6+ Nc5 Bb6+ Kb8 c7+ Kb7 Rd3 Rh4 Qb5 Rh6 Rc3 Nd3 Bd6 Nc1 c5 Qe6 Qgf7 Qb3 Qfc4 Qc2 Qbb4 Kc6 c8B Qd3 Bbc7 Qd2 Qf4 Rb3 Qcb5+ Kd5 Kb6 Qd4 Qff7+ Ke4 Qfg8 Qc4 c6 Rb2 Q4c5 Qd4 Qc4 Rb3 Rd3 Ba5+ Kb7 Rb4 Rb3 Nd5 Qc3 Qd3 Q5c4+ Ke3 Q3d4+ Kd2 Qg3 Ne3 Qg2 Rb8+ Ka7 Kd1 Qdh4 Qc3 Qhd4+ Kc2 Bb7 Ra8+
1rQ2R2/1B4nN/1p1bPBkb/1QRB4/R3q2r/nn4B1/RPb1rp2/2K1B3 w - - 0 1 illegal: No proof kernel
2k3bb/1Rpr3r/1Rp1RP2/1RP3B1/BQ2KB2/N2n3q/bQ2n3/rB1qB3 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 exf5 g4 Na3 g3 Nc4 Bg7 Na5 Bb7 Nc6 dxc6 hxg3 Bh6 g4 Bf8 g5 Bc8 Ke2 Kd7 Kd3 h5 f4 e5 g4 a5 b4 a4 c4 a3 b6 h4 b5 a2 b7 h3 g6 h2 g7 Qh4 f6 Ra3+ Ke4 Rd3 f7 Ba3 f8B Bc5 g5 Bf2 b6 Be1 g6 Qf2 f5 Qg2+ Nf3 Rh6 Bb4 Rh7 c5 Qf2 Nd4 Rb3 Nc2 Rb1 d4 Rb3 d5 Rg3 d6 Rd3 Qe2 Rh4+ Bf4 Rh5 Na3 Bc3 Re1 a1R Qb2 Nh6 g8Q Qg3 g7 Na6 b8R Qh3 b7 Rd5 Ba5 Nb4 Bb5 Nd3 Ba4 Bd4 Rhf1 h1B+ Rf3 Rh4 Qb4 Rh5 Qh8 Bc3 g8B Kd8 Ke3 e4 d7 Rh4 Qg7 Bf6 Qg2 Bh8 Qgb2 Rd6 Ba2 Bg2 Ke2 e3 Bb1 Bh1 Rg3 Bd5 Rg6 Ba2 Re6 Rd4 Rg1 Rd5 Rg3 Rd6 Kf3 e2 Ke4 e1Q+ Re3 Qd1 Rf3 Ne1 Rb3 Rd3 Ra8 Rd5 b8R Nd3 Ra7 Rh5 Rb5 Ba6 Rb6 Bc4 Rab7 Rd6 Re5 Bg8 Rb5 Rf6 Re6 Rf7 Qc4 Rh7 Be1 Rg5 Qb4 Rgg7 Rg6 Ng4 R7b6 Ne3 Re6 Nd5 Rb7 Qh6 R5b6 Rg1 Q4c3 Qh3 R3b5 Rgg7 Qcb4 Nc3+ Kd4 Ne2+ Ke4 Qc1 Rg6 Ke7 d8B+ Kd7 Re6 Kc8 Bdg5 Rd7 f6 Qd1
B2R1bB1/3Pkb2/B2R1r2/pQR1r1p1/2nr1q2/1n3RPN/q4Q2/BKB2b2 w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 fxe5 h4 axb5 Nd7 Nc3 Nb8 Ne4 Bf5 Ng3 Bd7 Nf5 Bc8 g3 h3 Nh4 Na6 Ng2 hxg2 Ra4 Nb8 Ra5 Ba6 Ra1 Bc8 e4 f5 b4 a5 d4 g5 Kd2 c5 Kc2 f4 h4 f3 d6 f2 d7+ Kf7 e6+ Ke7 h5 c4 b6 c3 b5 Na6 e5 Nb4+ Kb1 Nf6 h6 Nbd5 h7 Ne8 b7 Ne3 b8Q Nc4 b6 Ne3 d5 Ba6 b7 Bb5 Qe1 Nc7 Rh6 Na6 Nh3 g1R Ra3 Bg7 d6+ Kf8 e7+ Kf7 e8B+ Kf8 e6 Nc4 Bf7 Nc5 Bg8 Ra6 Rg6 Qc8 d8R+ Be8 Bg2 f1B Qf2+ Bf6 d7 Ke7 Qe5 Rd6 b8R Bg7 Ba8 Bf7 Rb5 Nb3 Rc5 Rd4 Qb8 Qc6 Qb5 Bf8 Rh6 Qd5 Rg6 Kd6 e7+ Qe6 e8B Ke7 Rf6 Qe2 Rd6 Rg2 Qg1 Rf2 Qh2 Rf6 Qf2 Be6 Bh5 Bf7 Bhf3 Qe6 Bfb7 c2+ Ka2 Qe2 Ba6 Qe6 Bb2 c1Q Ba1 Nbd2 Rf3 Nb3 Bb2 Qf4 Bc1 Qe2+ Kb1 Be8 Bgd5 Bf7 Be6 Rg8 h8B Rgg6 Bg7 Rf5 Be5 Rgf6 Bed5 Rd1 Bb2 Rd4 Ba1 Re5 Be6 Be8 Bg8 Bf7 Bcb2 Qed2 Bc1 Qa2+
Q1q1R2b/1BB5/pN4QB/1kNK1p1n/1B2b2Q/2Q1PPQq/r4r1q/6nr w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e5 d4 Nf6 b4 Qd7 d6 Ng8 d5 Qe7 Ra2 Qf6 Rd2 Qd8 Rd4 exd4 Kd2 Kd7 Kd3 g5 Kc4 f5 h4 c5 b6 d3 b7 a6 h6 d2 h7 g4 h5 g3 h6 g2 b5 Nf6 b6 Ne4 Nf3 g1R Ne5+ Ke8 d7+ Ke7 d6+ Ke6 Bg2 Bg7 Nd3 Bf8 Nc3 Rf1 Na4 Qh4 d8B Kd7 Be7 Kc6 d7 Qh2 d8Q Nd7 b8Q Bb7 Qg3 Rb8 Qg6+ Nf6 Qe1 Ba8 b7 d1Q Nb6 Bg7 Bf8 Rc8 b8B Rc7 e3 Qdh5 Ba3 Q5h3 Bb4 Rd7 Bbd6 Nh5 Qh4 Bf6 Bc7 Rg7 Nd5 Ng5 Nb6+ Nf3 Qc3 Rd7 Qhg3 Rd5 Bg7 Ng1 Be4 Bb7 f3 Rf2 Bf8 Rg8 h8Q Rg7 Qh4 Rh7 Qhg8 Rh8 h7 Ra2 Kb3 Kb5 Bh6 Rf2 Qgg3 Rd7 Q8g6 c4+ Ka3 Ba8 Nc5 Rdd2 Bb7 Bd4 Bc8 Be4 Bb7 Ne2 Rb1 Ng1 Rd1 Rb2 Rd2 Bf6 Rd8 Be5 Re8 Rbd2 Qb2 c3 Kb3 c2 Qd4 c1Q Qc3 Rg8 h8Q Ra2 Re6 Rg7 Qa8 Rh7 Re8 Bh8 Qce5 Bc2+ Kc3 Bb1+ Kd4 Be4 Qef6 Qc4+ Ke5 Qe6+ Kd4 Qc8 Ke5 Bb1 Kd5 Be4+ Kd6 Rd7+ Ke5 Ne2 Ke6 Rd1+ Ke5 Re1 Kd6 Rh1 Qc3 Bc2 Kd5 Ng1 Qge5 Bb1 Qeg3 Be4+
nbr4Q/R1Bqr3/3RpPk1/R1BB3R/R3bpb1/1KNrn1BQ/2q2P2/8 w - - 0 1 illegal: No proof kernel
B6K/2npbQ1N/pk2BN1Q/r2P3B/2n1rBPn/1q1b1QB1/8/Qq3qR1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c5 b4 Qb6 Ra4 Qb7 b6 Qc7 b5 Qd8 Rb4 cxb4 Ke2 h5 Kd3 e5 Ke4 h4 f4 a6 c4 h3 d4 b3 f6 h2 Kf5 e4 Kg6 e3 c5 b2 f5 e2 d5 e1Q c6 Qc3 b7 Qa3 b6 Qb4 c7 Nc6 b8B Qa3 f7+ Ke7 f6+ Kd6 b7 Kc5 Nd2 b1N Be2 Qb4 Ngf3 Bh6 f8Q+ Kb6 f7 Qb2 Rg1 h1Q Ne4 Qa2 Bf4 Na5 Nf6 Nd2 Qa1 Qb3 Qe8 Qe7 f8Q Qeb4 Qef7 Nac4 Q8g7 Qh3 Qh7 Bf8 Qh6 Bd6 Kg7 Be7 g6 Ra7 g3 Qf1 Ng5 Nf3 Ngh7 Nh4 Bh5 Qbe1 g4 Qeb1 Ne8 Nf6 Bg3 Ne4 Nef6 Re8 Bf4 Ng5 Bg3 Bf8+ Kh8 Re4 g7 Ne6 g8B Be7 Qfg6 Ng7 Be6 Ne8 Qf7 Re2 Qg5 Ra2 Qh6 Ra8 Bf4 Ra5 Ba7+ Kb5 b8Q+ Bb7 c8B Nc7 Bb6 Bc6 Bb7 Ra2 Qbe8 Ra5 Bf2 Rc8 Qeg8 Re8 B2g3 Kb6 Qgf8 Bb5 Ba8 Nd6 Qfg6 Bd3 Qe4 Nc4 Qf3 Bd6 Qg8 Bf8 Qf7 Re7 Bf5 Re4 Be6 Be7
K1nB4/pBbQ3q/1RbB4/1N5Q/PrBpqN1Q/Qr4r1/3P1kn1/4n2B w - - 0 2 legal: proof: e4 f5 exf5 g5 f4 c5 fxg5 Nf6 b4 Ng8 bxc5 Qc7 Qg4 Qa5 Qd1 Qd8 g4 h5 a4 Qb6 g6 Qa5 g5 Qd8 Ra3 Bh6 Rg3 Bf8 Rg4 hxg4 Ke2 d5 Kd3 Kd7 Kd4 Kc6 h4 b5 c4 g3 g7 g2 g6 b4 h5 b3 f6 e6 h6 b2 h7 Nh6 g8Q Bd7 f7 Qg5 g7 Be7 f8Q Bc8 Nc3 b1Q Nb5 Na6 Ba3 Bd6 Nh3 g1R Qh5 Nb8 Bg2 Bb7 Nf4 Qgf5 Qh4 Nd7 Qgf7 Rb8 g8B Ng4 Qfh5 Ba8 Rh3 Rb7 Bh1 Nb6 Rb3 Ne3 Bf7 Rhg8 h8B Qh7 Bf6 Nc8 Bd8 Bc7 Bb4 R8g4 Rb2 Rb8 Qfe7 Kb7 c6+ Kb6 Bg8 R1g3 Bd6 Ng2 c5+ Ka5 Ke5 d4 Qd7 Rb3 Bf7 Kb4 Bg8 Bb6 c7 Kc4 c6 Rgg3 Bf7 Ne7 c8B Bc7 Bb7 Nc8 Nh3 Qbg6 Rb1 Kd3 Nf4+ Kc2 Bg8 Qg4 Rb2+ Kd1 Bf7 Ke1 Qde7 Ba5 c7 Kf2 Qf8 Qhg7+ Ke4 e5 Kd5 e4 Kc6 e3 Bc4 e2 Qfe7 e1N Qd7 Nb6 c8Q Qh7 Qde7 Qe2 Qcd7 Nc8 Rb1 Bc7 Qe3+ Kf1 Qd3 Rb4 Qa3 Kf2 Nc3 Bb6 Rb2 Bc5 Kc7 Rb5 Ba6 Bc6 Rb1 R8b6 Bb7 Qee4 Kb8 Bb4 Ka8 Ba5 Ra1 Rb1 Ra2 R6b5 Rb2 Bc7 Rb3 Rc5 Rb6 Rb3 Qhf7 Rcb5 Qfh5 R5b4 Nb5 Rf3 Qe5 Rc3 Qeh5 Rcb3
1qQ2Q1N/kB2p2N/1pb1N3/K5R1/1nRQ1Pn1/1PNQ1b1r/2r1n3/2q1Q1b1 w - - 0 1 illegal: No possible last move, all moves rejected
b1q1Bnn1/5BBk/1B2Pp2/1R3bB1/5R1r/3n2q1/1br2PNp/Q1RRQ1K1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 e6 d4 Qd6 Nc3 Qe7 d6 Qd8 Nd5 Nc6 Nf4 Nb8 d5 e5 Ne6 Bg7 Nd4 exd4 Qc2 Bh6 Qd1 Bf8 b4 a5 e4 h5 g4 c5 e5 c4 b6 a4 e6 a3 g6 d3 g5 c3 g7 h4 d7+ Ke7 b7 a2 g6 Kf6 b5 c2 b6 h3 d6 Ne7 g8Q Nbc6 b8R Nd5 b7 Qc7 d8R Nde7 d7 Rh4 g7 Kg6 Bg5 c1N Qh8 Ng8 Ne2 Ba3 Rf8 Nce7 d8B Qg3 Bb6 Bb2 Bg2 d2+ Kf1 Ra5 Qe1 d1B Kg1 Nd3 Rc1 Bc2 Rd1 a1Q Nf4+ Kf5 Rc1 Rc5 Rd1 Qa6 Rc1 Nf6 g8B Nh7 Qhc3 Qa8 Qa3 Bd7 Qa1 Bc6 Rd1 Bb1 Rc1 Rc2 Rd1 Qe3 Bf1 Qe5 Ng2 Kg6 Rc1 Qg3 Be2 Nf4 Bb5 Nd3 Rd1 Be4 Be8 Qa6 Rc8 Bc6 b8B Ba8 Rc5 Qc8 Rb5 Kg7 Bbf4 Kg6 Bc6 Kg7 Be5+ Kg6 Bg7 f6 Rd8 Nf8 Bf7+ Kh7 Bce8 Ng8 Rd4 Ba2 Rc1 B2d5 Rg4 Be4 Rf4 Qe3 Kh2 Bf5 Rf1 Qg3+ Kg1 Rh6 Qc3 Rh5 Rfd1 Rh4 Qe1 h2+
1k1q3N/2p5/P2RNKQ1/1n4rR/q1b4R/nNPNr2p/1b6/b1Q1RNBq w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 h4 Qd8 hxg5 f5 e4 Bd6 e6 Ne7 e5 Ng8 Bd3 Bf8 Be4 fxe4 Ke2 h5 Ke3 d5 Kf4 b5 Kf5 e3 g4 h4 f4 b4 a4 e2 c3 e1B g6 d4 g5 b3 g7 d3 a6 b2 a7 d2 a5 Rh7 g6 Bb4 a6 Nc6 Ra5 Bd6 Nf3 Qd7 Nd4 Kd8 Nb3 Nge7+ Kf6 Ba3 g8R+ Qe8 f5 Nb4 g7 Nec6 e7+ Kd7 e6+ Kd6 Rh3 Qd7 e8Q Bf2 e7 Nd4 Qg6 Be1 e8R Rb8 a8N Rh5 Nb6 Nbc2 Na4 Nb5 Nac5 Rg5 Nd3 Qd8+ Re7 Bf2 Qh1 d1Q N1d2 b1Q Nf1 Bg3 Be3 Bb2 Bg1 Ba1 Re8 Ra8 g8N Bf4 Nh6 Be6 Rh8 Bd5 Nf7+ Kc6 Rh6 Nca3 Rh2 Bc1 Nh8 Bcb2 Rd2 h3 Rh4 Qg4 Rd1 Qa4 Re1 Qe8 R7e6+ Kd7 Rd6+ Kc8 Qf3 Bg8 Kg7 Rh5 f6 Qc1 f7 Nd4 f8N Qac6 Bh2 Qg5 Qf4 Bc4 Ne3 Qh1 Rc5 Qa4 Nf1 Ndb5 Bg1 Rb8 Qc1 Rb6 Rd7 Re6 Rd6 Re3 Ne6 Kb8 Kf7 Qd8 Rcd5 Rg5 Re5 Rg2 Reh5 Rg5 Kg7 Qe8 Kf6 Qd8+
2N1b2b/pKN1r2Q/PQr2Nn1/R1P3Q1/bpkNnQ1q/6R1/2B5/1N1bb3 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Na6 g5 Nb8 g6 Qa5+ Bd2 Qd8 Bg5 hxg5 Kd2 Ke7 Kd3 Ke6 Kc4 f5 Kb5 d5 e4 b6 h4 d4 a4 g4 c4 g3 a5 d3 c6 g2 c7 d2 h5 f4 a6 f3 h6 f2 h7 Ba3 c5 Qg5 Qg4+ Qf5 Ne2 g1B Qf4 d1B Rh3 Qg5 Nd4+ Kd7 Rg3 Nf6 g8Q Bb4 g7 Nc6 Ra5 Ne7 Bd3 f1B Qb3 Be1 g8Q Qh4 Qgg5 Re8 h8Q Ng6 Qh7+ Re7 Qb4 Bb7 c8N Bh3 Bc2 Bc6+ Kc4 Ba4 e6+ Ke8 e5 Ne4 Kd5 b5 Kc6 Bh2 Qc4 b4+ Qb5 Bhg4 Qgf5 Bh5 Q5g5 Rb7 e7 Rb6+ Kc7+ Rc6+ Kb7 Kd7 Qb6 Bg1 Nb5 Ke6 e8N Kd5 e6+ Kc4 e7 Bd4 Nec7 Bb2 e8N Bh8 Ne7 Rc8 Nf6 Re8 Nc8 Re7 Nd4 Nf8 Qd2 Be8 Qdf4 Ng6
rBQ3K1/5R2/1r1pR2r/1bQ1R2p/1QPbnnnP/4NQR1/1Qn4k/5qN1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f4 Kf7 f6 g6 Bd3 Ke6 f7 Kf6 f5 Ke5 f6 Ke6 Bf5+ gxf5 Kf2 Ke5 Kg3 a5 Kh4 h5 Kg5 e6 Kg6 f4 c4 f3 g4 f2 b4 f1N h4 a4 g5 a3 b6 a2 b7 Rh7 c6 Ra6 b5 Be7 f8R Ng3 b6 Ba3 f7 Ne2 c7 Bb2 Nd2 Nh6 Nf1 Bd4 Ne3 Kf4 Rb1 Kg3 Rb5 a1R Re5 Rh8 Kg7 Ng4 g6 Rh6 Kg8 Nf4 g7 Qf6 Re8 Rb1 f8Q Ra8 Qc5 Na6 b8Q d6 b7 Bd7 c8Q Qf5 Re7 Rb6 Rf7 Bb5 Bd2 Ba4 Ba5 Bb5 Rh2 Qb1 Re2 Qa1 Re1 Kh2 Qf3 Qb1 Kf8 Qd3 g8R Qf1 Rgg5 Rh7 Kg8 Rh6 Qb4 Nc5 Qa7 Ne4 b8Q Ra6 Bc7 Rb6 Rd5 e5 Qaa5 Ngf2 Rg3 Ng4 Qc5 Nef2 Qab4 e4 Nc2 e3 Re5 e2 Ne3 Ne4 Qbb7 Bb2 Bb8 Ba1 Qbd5 Bb2 Qdd2 Bd4 Qdb2 Qf2 Ra1 e1N Raa7 Qe2 Rae7 Nc2 R7e6 Qf1
r7/4ppPn/1r2QPn1/nQ1B4/1B1Bnkbb/4q2R/2NN3r/1QQQ2KB w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 h4 Bc8 hxg5 c5 b4 Kd7 b6 Nc6 b5 Nb8 Ra4 Ke8 Rb4 cxb4 g4 Kd7 d4 Kd6 f4 a5 Kf2 h5 c4 h4 b7 h3 b6 h2 f5 a4 c5+ Kd7 g6 a3 d6 a2 g7 a1N c6+ Ke8 g5 b3 f6 b2 c7 Kd7 g6 Ke6 d5+ Ke5 d7 Qe8 d8B Bf5 c8Q Nc2 d6 Ra7 d7 Nd4 Bc4 Rh4 Nf3+ Ke4 Ne1 Ndc6 Nc2 Bg4 Bd2 Na5 Bb4 Ra8 Bd5+ Kf4 Nd2 b1R Qc1 Nh6 g8B Nf5 Bh7 Bh6 g7 Bg5 Qc6 Rh6 Qe6 Nh4 Bhe4 Qh8 Bg2 Ng6 Bc7+ Ne5 d8Q Nd7 b8Q Nf8 b7 Nh7 Bb6 Bh4+ Kf1 Rh5 Bd4 Rb3 Qdd6 Qd8 Qdd7 Qb6 Qb5 Qc5 Qd8 Qc3 b8Q Qe3 Qbc8 Ng6 Qb1 Rb2 Qc3 Rh6 Qa3 Rb3 Qac1 Rh5 Rg1 Rh6 Bh1 Rh5 Rg3 Rh6 Bhg2 h1N Rh3 Nf2 Bh1 Ne4 Qdd7 Rc3 Kg2 Rc6 Kf1 Rb6 Qd8 Qf3+ Kg1 Rh5 Qdd7 Qe3+ Kh2 Rg5 Qdc6 Nc3 Qcc4 Bf5 Qe2 Ne4 Qed1 Rg3 Nc4 Bg4 Nd2 Rf3 Kg2 Rf2+ Kg1 Rh2+
B3R1Bk/p2R3b/P1r1n3/R1bPp2B/bN2bR2/n1QKR2q/2Q5/2B3rr w - - 0 1 illegal: No possible last move, all moves rejected
1NQ2NrN/kb2R1p1/PpnR1n1B/1q2R1P1/1N6/1b1bK3/2n2RrQ/2bR4 w - - 0 1 illegal: No possible last move
1Q3rB1/4k3/PQ1N1N1n/5pK1/1q3Qb1/1rQ2PB1/2NbpQrb/1bR3Nn w - - 0 1 legal: proof: e4 a5 a4 d5 exd5 c5 g4 h5 gxh5 Nf6 b4 Qd6 bxa5 Ng8 Ra3 Qd7 Rb3 Qd8 Rb4 cxb4 Ke2 b5 Ke3 g5 h4 f5 c4 e5 d4 b3 c5 b2 f3 g4 h6 e4 Kf4 g3 a6 e3 a7 b4 h5 g2 d6 b3 a5 Be6 d5 Nd7 a6 Qe7 h7 Rb8 a8N Rd8 h6 Qg7 c6 Nb8 c7 Rd7 c8N Rc7 d7+ Kf7 d8Q Nf6 d6 Rc2 d7 Nc6 Qd4 Ng8 Qc7 Ne5 Bc4 Bb4 Nd6+ Ke7 Na3 b1R Nb6 Qf8 Kg5 b2 Qcc5 Rd2 Qf4 Bf7 Nc2 Bh5 Qcd4 Bg4 Nd5+ Kd8 Qa7 Nd3 Nf6 Nf2 Qad4 Re2 Bd2 Bc3 Be1 Ke7 Bd5 Bd2 Qc5 Nd1 Bg3 Nf2 Bb3 Ra1 Qcd4 Ra3 Ba2 Rb3 d8Q+ Ke6 Q8b6 b1B Nh3 Qb8 Rc1 Nh1 Ng1 Rf2 Qdc5 e2 Qc3 Ne7 Qcd4 Rf8 h8Q Ng8 h7 Nh6 Qg8+ Ke7 h8Q Qb7 Qc3 Qe4 Qd5 Qb4 Qdd4 Ra3 Bg8 Rb3 Nh3 g1B Qdc5 Bh2 Ng1 Rg2 Qf2 Qc4 Bf7 Ra8 Qhb8 Qb4 Bg8 Qd4 Qb5 Qb4 Q8b6 Rf8 Qb8 Re8 Q5b6 Rf8
2Qb1k2/1n2bbRQ/1pN1B1Q1/7K/NP6/2qNr2r/r1pP1BQ1/1r1NNn2 w - - 0 1 legal: proof: b4 d5 e4 f5 exf5 a5 g4 h5 gxh5 a4 c4 Na6 cxd5 Nb8 a3 Ra7 Ra2 Ra8 Rb2 Ra6 Rb3 axb3 a4 Ra8 Ke2 c5 Kf3 g5 Kg4 e5 f4 c4 h4 b6 h6 c3 a5 e4 h5 c2 a6 b2 h7 e3 h6 e2 a7 e1B d6 Bf2 d7+ Kf7 f6 Bg3 f5 Qe7 d8N+ Ke8 f7+ Kd7 f6 Be5 Bc4 Bh2 Nc6 Bg7 f8N+ Ke8+ Kh5 g4 Ne6 g3 f7+ Kd7 f8N+ Ke8 Ng6 g2 Nge5 Qd8 Nc5 Bf8 Na4 Qd4 Be6 Ne7 Nd3 Bc7 Nf3 g1R Nbc3 b1R Nfe1 Nf5 Bb2 Ne3 Qg4 Be7 Nd1 Nf1 Qg6+ Kf8 Bc3 Qf6 Bd4 Na6 Bf2 Rg3 Rg1 Re3 Rg2 Bcd8 Rg3 Rb8 a8Q Qc3 Qb7 Ra8 Rg2 Rg8 h8Q Nc5 Qhh7 Rh8 Rg1 Bd7 Qc8 Nb7 Qg2 Rb3 Qhg6 Be8 h7 Ra6 Ndc5 Rb1 Ncd3 Rg8 h8Q Bf7 Qh7 Rh8 Nab2 Ra3 Na4 Ra2 Kg4 Nd6 Qhh2 Qg7 Qgg3 Nb7 Qg5 Rg8 Qh7 Qc3 Qgh2 Rg6 Kh5 Qh8 Rg4 Qc3 Qg2 Bd6 Qf5 Be7 Qfe4 Rf6+ Rg6 Rff3 Qeg4 Bg8 Rg7 Bf7+ Qgg6 Rh3+
N2NBkrN/n1Qpb3/q3bN2/n3B3/N1QrrK2/3P1nB1/2P2Bpn/5R2 w - - 0 1 illegal: No possible last move, all moves rejected
Bq1rN3/2p5/2N5/1Q4p1/b4r1n/BRPNPkb1/1NQKnBr1/nB3B1r w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 b4 h6 g4 Bd6 g6 Bb7 g7 Bf3 g5 Bb7 g6 Bf8 Ra3 Ba6 Rg3 Bc8 Rg5 hxg5 h4 Ke7 b6 Ke6 b7 Kf5 b5 Ke4 e6 d5 b6 a5 c3 f5 h5 f4 h6 d4 e7 f3 e8N f2+ Kd2 a4 h7 a3 Qc2+ d3 Nh3 a2 Nf4 a1N Na3 Nd7 b8Q Nc5 b7 Bd6 Nc4 Nh6 g8B Ra6 g7 Nf5 Ba3 Bd7 Nb2 Ba4 Ba2 Nh4 g8B Ne6 Bb1 Nd4 e3 Kf3 Bd5+ Kg4 Bdg2 Ne2 Rh2 Rg8 h8B Rb6 Bh1 Rb5 Rg2+ Kf3 Be5 Rb6 Qc8 Rb3 Qd7 Qb8 Qb5 Rb4 Ne6 Rd4 Nc5 Rg4 Bh2 Bg3 Bg1 Qa7 b8N Qb6 Nd6 Rd8 Nc6 Qb8 Ne8 Be5 Kd1 d2 Rh2+ Rg2 Ncd3 Nf5 Rh4 Bg3 Rb4 Nb3 Qc1 Nh4 Kc2 d1R Qd2 Re1 Qd1 Na1+ Kd2 Rd7 Rb3 Rd8 Qc2 Kg4 Nd4 Rh2 Bfg2 f1R Ba8 Rc1 Bhg2 Rf4 Bf2 Rch1 Bf1 Rg2 Nc6 Kf3
bBr1Q3/B3r3/n3n2Q/B5NK/3pRn2/3P1qb1/kPBp1R1Q/1n1qB1Q1 w - - 0 1 illegal: No possible last move
2QNNq1k/Qb1B1qR1/N4n1B/1r3p2/PQ6/3bpP1b/Q1NbK1n1/3N3r w - - 0 1 legal: proof: e4 a5 a4 d5 exd5 c5 g4 h5 gxh5 Nf6 b4 Qd6 bxa5 Ng8 Ra3 Qd7 Rb3 Qd8 Rb4 cxb4 c4 f5 d4 Kf7 h4 g5 h6 e5 d6 b5 a6 b3 c5 b4 c6 b2 d5 b3 h5 e4 d7 g4 f3 g3 a7 g2 c7 Bd6 h7 Kg7 h6+ Kf6 Na3 b1B Qd2 b2 Nh3 g1Q Nf2 Bb4 d6 Qe7 d8Q Qg7 d7 Na6 Qf8+ Qef7 d8N Nc5 Bb5 Bc3 Ke2 Bb7 Nd1 Rc8 a8N Ne6 Qfd6 Rb8 c8Q Bd5 Qb4 Qgf8 Qe3 Bc6 Qa7 Rb7 Nc7 Nf4+ Kf1 Bd5 Bd7 Rb5 Rg1 Bb7 Na6 Bd3+ Kf2 b1B Be3 Bf1 Rg3 Ne7 Rg4 Rg8 h8Q+ Rg7 h7 Bh3 Rg2 Bd2 Rg3 Bd3 Nc2 Ned5 Rg4 Ng2 Bh6 Nh4 Na1 Bb1 Ke2 e3 Rg2 Be4 Nc2 Q8e7 Qe8 Qef8 Rg1 Rg4 Qe5+ Kg6 Qeb2 Rg5 Qa2 Rg3 Ne6 Nf6 Nec7 Rg5 Ne8 Rg4 Rf1 Rg1 Re1 Rh1 Rg1+ Kh5 Rg8 Ng2 Rg7 Qb3 Rf7 Kg6 Re7 Qbg8 Rf7 Qgg7 h8N+ Kh7 Re7 Rd5 Nf7 Rb5 Nd8 Kh8 Rf7 Qgg8 Rg7 Qb3 Qb2 Qbf7 Qa2 Bd3+
Qq5R/4B1Bp/1bQ2pBR/nBrrR3/2Nn2PR/5P1q/k2K4/b3Rbb1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 e6 d4 Qd6 Nc3 Qe7 d6 Qd8 Nd5 Nc6 Nf4 Nb8 d5 e5 Ne6 Bg7 Nd4 exd4 Qc2 Bh6 Qd1 Bf8 e4 Kd7 b4 a5 g4 c5 e5 c4 g6 d3 b6 f6 e6+ Ke8 b7 a4 d7+ Ke7 g7 Kd6 e7 a3 e8B a2 b5 Kc5 d6 Kb4 b6 c3 Qc2 Qc7 d8B Be7 d7 Bc5 Bh6 Ka3 Nf3 Nc6 b8R Na5 b7 Ne7 g8R Bb6 Nd2 Nf5 f3 Nd4 Bg6 Ra6 Rd1 a1B Bg7 Qd6 Ra8 Qb8 Rh4 Ra7 Qc1+ Ka2 Nc4 c2 Be7 Ra6 d8Q d2+ Kf2 Ra7 Re1 d1Q Ke3 Bd7 Be2 Bb5 Re8 Ba6 Reh1 Qg1+ Kd2 Qg2 Rh6 Rf8 R1h4 Qh3 Qc8 Rf7 Rh8 Rf8 Qc6 Rd8 Qa3+ Kb1 Bed3 Rd5 Bf1 Qc7 Rae8 Qb8 Qd3 Ka2 Qe4 Qc7 b8R c1B+ Kd3 Ba3 Kd2 Bac5 Rb7 Qb8 Rd7 Rh5 Rd5 Rd7 Re5 Rd5 Be2 Ne6+ Bd3 Bg1 Qa8 Rc5 Qec6 Rg5 Na3 Rh5 Bb5 Nd4 Re1 Rhd5 Nc4 Bd8 Bef8 Bb6 R8e5 Bc8 Bd6 Bf5 Bdf8 Bd3 Be7 Bf1
1n2RnQQ/RRpBrb1q/8/4P1Q1/2kBR3/Qbb3p1/1QP1q2N/1K4rb w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 g4 h6 g6 Ba3 Nc3 Bc5 Ne4 Bf8 g5 h5 Nf2 Ba6 Ng4 hxg4 Bh3 Bb7 Bf1 Bc8 Kd2 Ke7 e4 Ke6 b4 a5 h4 f5 g7 d5 h5 a4 b6 d4 b7 g3 g6 a3 h6 f4 h7 d3 b5 a2 b6 f3 Bb2 f2 Kc1 Ra3 Rh4 Bb4 Qf3 Qe8 Bd4 Nf6 g8Q+ Qf7 g7 d2+ Kb2 d1B Bb5 f1B Qc3 Bd3 Nf3 Bc4 Nh2 Bb3 Rg4 Bf3 Bd7+ Ke7 e6 Kd6 e5+ Kd5 e7 Bh1 Qe3 Kc4 e8R Bc3+ Kc1 Ra5 Re4 Ra4 Qf8 Qh5 Qg5 Qe2 Qa3 Rb4 Rd8 Re8 h8Q Nh7 g8Q+ Re6 Re8 Nf8 Qg8g7 Re7 Qgh7 Na6 b8Q Bb7 Qhg6 Bd5 b7 Bf7 Qgg8 Rb6 Qd8 Rf6 b8R Rd6 Rb7 Nb8 Rb1 a1Q Ra7 Rf6 Qc8 Rf2 Qb7 Rg2 Qb6 Ba2 Qbb2 Bb3 Qd6 Qa6 Qda3 Qg6 Rb7 Re6 Ra1 Re7 Kb1 Qg7 Qd6 Qg6 Raa7 Qh7 Qda3 Rg1+
7q/KN2npk1/prq3rR/6QQ/rN1qn1B1/1Q1q1b2/P2Q1P1R/N2QN3 w - - 0 1 legal: proof: h4 e5 b4 c5 bxc5 h6 d4 Ne7 dxe5 Ng8 Bg5 Bd6 g3 Be7 h5 Bf6 Bd2 Bh4 Bg5 hxg5 gxh4 Kf8 Nc3 Ke7 Nb1 Ke8 Kd2 Kf8 Ke3 d5 Kd4 b5 c4 a6 e4 g6 h6 g4 c6 g5 Kc5 b4 e6 d4 h7 b3 e7+ Kg7 e8N+ Kf8 e5 d3 e6 b2 c7 g3 Kb6 d2 h5 g4 h6 g2 c5 g3 c6 Qd5 Nf3 g1Q Ne1 g2 Na3 Qg5 Nd6 Ne7 Rh2 Qh5 Be2 Qf1 Bg4 g1Q Nac2 Rg8 h8Q b1Q+ Qb2 Rg7 h7 Qhh3 h8Q+ Rg8 Qb3 Qh5 Nb7 Qb2 Qh6+ Rg7 Qg5 Qh8 Rb1 Ra7 Na1 Qh1 Rc1 Bd7 c8N Qd3 c7 Rg6 Rc6 Kg7 Rd6 Ra8 Na7 Bc6 c8Q Bf3 Qcc5 Qbd4 Nc6 Ra7 Nb4 Nd7+ Kc7 Nf6 Kb6 Ra8 Rc6 Rb8 Ka7 Ne4 Rd6 Ng8 e7 Qg2 e8Q Ne7 Qea4 Qh1 Qe2 d1R Qed2 Rc1 Qbd1 Rc4 Qab3 Qg2 Na5 Rb6 Nb7 Qg3 Re6 Qc7 Qa5 Qc6 Qh5 Rg5 Rh6 Rg6 Qag5 Qdd5 Nbc2 Ra4 Nb4 Q5d4
KNR1QNB1/1nb1R2p/b6q/k2br1pp/PRRn4/5Q2/R1N3Pr/N3n3 w - - 0 1 illegal: Other
2bb2B1/1N4kp/RBppn3/2QPNB1Q/2BqbPr1/1r1N1q2/K1N2N2/1n6 w - - 0 1 legal: proof: b4 b5 c4 a5 a4 g5 h4 f5 hxg5 Na6 e4 Nf6 exf5 Nb8 Ra3 Bb7 Rb3 Ba6 cxb5 Bc8 b6 Ng8 b5 Nf6 Rb2 Ng8 Rb4 axb4 f4 Kf7 d4 e5 Kd2 c6 Kc2 d6 Kb3 e4 g4 e3 a5 e2 f6 e1Q a6 Qee8 b7 Qee7 a7 Qee8 b6 Qe2 d5 Qde7 g6+ Ke8 g5 Q2e5 f7+ Kd8 g7 Kd7 g6 Qa1 Be3 Na6 b8N+ Kd8 b7 Qg5 Na3 Ke7 Qh5 Kf6 Nh3 Qae5 Ka2 Nc7 Bb6 Ne6 Nf2 Qe4 Na6 Qgg2 b8N Be7 f8N Qg3 Bc4 Qf5 Nc2 Qfh3 Nc5 Qc3 Ncd3 Qd4 Na6 Bd8 Nac5 Rb8 a8Q Qf3 Qa7 Rb7 Ra1 b3+ Ka3 b2 Ka2 Rb8 Nb7 b1B+ Ka3 Ne7 g8B Nf5 g7 Ne3 Ng6 Nd1 Ne5 Nc3 Bf7 Re8 g8B Kg7 Bg6 Rf8 Be4 Rf6 Bf5 Rg6 Qa5 Rg5 Qc5 Rg4 Ncb4 Bc2 Kb2 Bb1 Ra6 Bc2 Ka1 Nb1+ Ka2 Nf8 Ne1 Be4 Nbc2 Ne6 N1d3 Ra8 Ra4 Ra5 Ra3 Rb5 Ra6 Rb3
2NK1knB/b1Q2qR1/1N2p3/5pQ1/p1Q3q1/Nbr1N1Q1/1NRq1PP1/rn6 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 h4 Bc8 hxg5 c6 b4 Na6 b6 Qc7 b7 Qd8 b5 Nb8 b6 Qc7 Be2 Qd8 Bb5 cxb5 Ke2 a5 Kd3 f5 Kd4 h5 Ke5 b4 c4 b3 d4 h4 g6 e6 c5 a4 g7 b2 c6 h3 c7 h2 d6 Rh3 d7+ Kf7 d5 Bb4 d6 Qe7 d8Q Ra7 d7 Rc3 Qf1 Bc5 Nh3 Ra3 Qc4 Ra6 Ra2 Nf6 g8N Ne8 Nf6 Be3 Ng4 Bd2 Nf4 Nd6 Ne3 Nb5 Nd3 Nc3 Rd1 Qe8 Kd6 h1Q Qg5 Nc6 b8Q Qh5 d8Q Qg4 b7 Kf8 Rh1 Ra7 Rh7 Ne7 Rg7 Ng8 Qd7 Ra8 Qdc6 Bd7 c8N Qf7 Kc7 Ra5 Qf3 Bc6+ Kd8 Bd5 Qbc7 Rc5 b8N Rc6 Qfg3 Rc5 Nc2 Be3 Bd2 Bd4 Ne3 Rc6 Be1 Ba7 Bd2 Ne4 Bc3 Nd2 Bd4 Rc3 Na3 b1Q Rc2 Qe1 Nb2 Nb1 Na6 Qd2 Nb4 Bf3 Nbd5 Bd1 Ndb6 Rc5 Nd3 Rb5 Be5 Rb2 Bd4 Ra2 Nb2 Ra1 Rg6 Qe1 Bh8 Qee2 Rg7 Qe1 Rd2 Bb3 Rc2 Qd2+
1B6/4R2N/1kN2N2/n1p2rpB/n2PBN1q/2rbbp2/3rBP1Q/Q4NrK w - - 0 1 legal: proof: b4 d5 c4 a5 bxa5 h5 a4 e5 g4 e4 gxh5 Kd7 Ra3 Ke7 cxd5 Kd7 d4 Ke8 Rd3 exd3 h4 Kd7 e4 g5 d6 Kc6 d7 f5 e5 b5 e6 b4 h6 f4 a6 b3 a7 b2 h7 Qe8 d8N+ Kb6 e7 c5 a5+ Kb5 a6 Ka5 h5 Qc6 e8N Kb6 h6 Bd7 Nf6 Qc8 Ne2 Kb5 Nc6 Bf5 Nd2 b1R Rh3 Ne7 Re3 Ng8 Re7 Qb7 Qa4+ Kb6 Qa1 f3 Nf4 Qd7 Be2 Qe8 Kf1 Qh5 Kg1 Nd7 Nf1 Qh4 Be3 Re8 a8B d2 a7 d1R Bb7 Rd2 a8B Rb3 Bc8 Bd3 Bab7 Rc3 Ba8 Nb8 Bg4 Nd7 Bh5 Bg7 Bb7 Rf8 Ba8 Qg3+ Kh1 Qh4+ Nh3 Rf7 Bf4 Bf8 Bb8 Bg7 Ne4 Be5 Nf6 Bf4 Bb7 Be3 Ba8 Qg3 Nf4 Qg4 Na7 Rf8 Be4 Qg3 Nc6 Rf7 Re5 Ne7 Re6 Re8 h8N Qg4 h7 Qh4+ Nh3 Rff8 Ng6 Rf7 h8Q Rff8 Nd8+ Nc6 Re7 Na5 Nc6 Rf7 Qh6 Rh8 Nf8 Rhh7 Ng4 Rf5 Qd6 Rh6 Qh2 Re6 Bd5 Re4 Nf6 Rg4 Nf4 Kb5 Nd8 Nb6 Be4 Na4 Nc6 Kb6 N8h7 Rg1+
k7/BR2QRR1/p1RB2Q1/PBp4r/1nPKbpbB/8/4N3/1nR1qnnr w - - 1 2 illegal: No possible last move, all moves rejected
B1NrN1R1/2p2p2/2p4b/3r1kb1/2KQNPbQ/b1PN1R2/N2Rn2R/3q1n2 w - - 1 2 illegal: Other
3K2n1/NpQ5/3BPq1k/2B1N2B/r3NRp1/1bbB1QP1/1pnN1pr1/b5N1 w - - 0 1 illegal: No proof kernel
1Qq2N2/4r3/2Rpp1p1/Q3QRQ1/1Pn2bBR/3R2p1/bK1nbkPr/B1Q5 w - - 0 1 illegal: No proof kernel
R2R4/r2nbN2/2rQ1P1R/KBq2kn1/pp5p/4Qb2/P1bR3p/RQ1Q3N w - - 0 1 illegal: No proof kernel
8/NNQ1nRbp/p3NN2/B5r1/1Bq1PBBp/1b1r1KB1/PQ2n1pr/6k1 w - - 0 1 illegal: Other
Nq1r4/3br2p/1R4pP/1nN1Nn1p/1kN5/2NpPR2/p2RRb2/1KQ1Q1B1 w - - 0 1 illegal: Other
b6n/3N3b/qr1N2k1/N1BB3r/r1r3q1/Pp2RPNB/3K3B/R2NnB2 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 g4 exf5 Be6 Qe2 Bd7 Qd1 Bc8 h4 Na6 Qf3 Nb8 Kd1 g3 Qe2 Qd6 f3 Qd8 Qf2 gxf2 g4 Qd7 g5 Bh6 g6 Bg5 hxg5 Qd8 d4 e5 g7 Kf7 f6 h5 d6 c5 a6 b5 a3 b4 d5 b3 d7 c4 a7 e4 d6 c3 Ba6 f1B Bf4 h4 Ne2 c2+ Kd2 c1R Nbc3 h3 Nd1 Nh6 g8N Qb6 d8B h2 d7 Qb5 Be7 Bb7 Bc5 Nc6 Ne7 Nb4 Nc8 Nd3 Rg1 h1Q Bh2 Rb8 a8B Qg2 Rh1 Qh3 Ng3 Qg4 Rg1 Be2 Re1 Qc6 Bb5 Qa6 Bc4+ Bd5 Bb5 Rb6 d8N+ Kg6 f7 Kg7 f8N Nf7 Bb7 Rh5 Nd6 Nh8 Nd7 Bf1 B7c6 Rc3 Bc4 Be2 B6b5 Ba8 g6 Kh6 g7 Rc1 Nb2 Bd1 g8B Bc2 Bgd5 e3+ Ke2 Bb1 Nc6 Rc3 Kd1 e2+ Kd2 Kh7 Na5 Bc2 Rg1 e1R Nd1 Re4 Re1 Kh6 Re3 Ne1 Be2 Ra4 Bbc4 Bh7 Bed3 Qg5 Bf5 Qf4 Bg4 Kg6 Bh3 Qg4 Bcf1 Rcc4
6k1/5R1n/2BNnBBn/2B1R2P/1RP3Rr/1p3Nn1/b2BKR1q/r1q1b3 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 d4 c5 g4 d5 gxh5 a4 Qb3 a3 dxc5 d4 Qc3 dxc3 bxa3 Nf6 a4 Ng8 a5 Bd7 Ba3 Be6 Bc1 Bc8 f4 Kf7 h4 g5 a4 b5 c6 e5 h6 b4 h7 b3 f6 e4 h5 e3 f5 c2 a6 e2 c7 g4 a7 g3 a5 g2 a6 Qd4 Nf3 g1Q Rh2 Qg3+ Rf2 Qgd6 Bd2 c1N Na3 Q6d5 Nb5 Bb7 c8R Nh6 Rc5 Qc3 Ra4 Rg8 h8B Nc6 Rb4 Rg4 Nd6+ Kg8 Bg7 Qf7 Re5 Nd8 Bg2 Qc7 f7+ Kh7 f6 Ne6 Bf1 Rh4 Bh8 Bg7 f8R Be4 f7 Bb1 Rg8 Bf6 f8B Ba2 Rg4 Bg5 Bf6 Kg8 Nb5 Qb8 Bc5 Qb2 Nd6 Qc7 Rfg2 Qc3 Kf2 e1N Bd3 Ne2 Bg6 Qc1 Kf1 Ng3+ Kf2 Re8 a8R Rf8 Ra7 Ra8 Rab7 Bf4 a7 Bg5 Ng1 Nf3 Rh2 Qb8 Rf7 Bf4 Rg2 Nfg5 Nf3 Nh7 Rh2 Ne4+ Ke2 Bg3 Rg2 Be1 Rh2 Qc7 Rf2 Ng3+ Kd3 Rd8 a8B Rc8 Bc6 Ra8 Bfg5 Bb1+ Ke3 Ra1 Bf6 Ba2 Nf5 Nef8 Rd5 Nh1 Ke2 Qh2 Re5 Ne6 Nd6 Ng3+
1Rb5/2bn1qk1/pRP2NB1/2B1B1Nr/P1qr1rb1/8/K1BR1bnR/4B1R1 w - - 0 1 illegal: No possible last move, all moves rejected
1qn2b2/k1r1R1rb/2Q4R/BRN1BK2/PQ2B2Q/4Q3/P2b1bb1/Rn6 w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 d5 cxd5 c5 exf5 c4 b3 a4 bxa4 c3 dxc3 Qb6 c4 Qb2 c5 Qxb1 Kd2 Kd7 Ke3 Kc7 Kf4 b5 h4 Kb7 f6 b4 d6 g6 d7 b3 d8Q e6 h6 b2 h7 Nh6 h5 Ra7 f7 Rg8 h8R Qc2 c6+ Ka8 c7 b1B Qf3+ Bb7 c8Q Bb4 f8R Qb2 Rf5 Rg7 Bd2 Nf7 h6 Ne5 h7 Bf8 Ba5 Nc4 Bg2 Nd2 Nh3 e5+ Kg4 e4 Qc6 g5 Rb5 e3 Nf4 e2 Nd3 e1B Rh6 Bc2 Qe3 Nb1 f4 Bd2 Kf5 g4 Be4 g3 Nc5 g2 Qh4 g1B Rg8 Bf2 h8B Rc7 Rg7 Nd7 Re7 Nb6 Be5 Nc8 Kg6 Rd7 f5 Rc7 f6 Qb4 f7 Qb3 Qe8 Bc6 Kf5 Rab7 Bd3 Bg2 Be4 Ka7 Qd7 Bg7 f8Q Qg8 Qff6 Bf8 Qdd4 Qg3 Qb4 Qg8 Reh7 Rg7 Qd6 Rbc7 Qc6 Bd6 Ne6+ Nb6 Kf4 Rg5 Bf5 Qb8 Nc5 Bf8 Re7 Rg7 Bh7 Nc8 Bg6 Bf5 Bh7 Be6 Be4 Bg8 Kf5 Bh7+
r1n1q3/QqNPB1Q1/K2Pr3/4Nk2/4Rp2/1QBrn2q/3B2N1/3BQ1b1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 c4 e4 cxd5 b4 a6 e3 fxe3 Be6 e4 Nc6 e5 Bd7 Ra3 Nb8 Rh3 Bb5 axb5 Qg5 b6 Qd8 Rc3 Kd7 Rc6 Ke7 Re6+ Kd7 Re8 Kxe8 d4 Kd7 Kd2 c5 Kd3 g5 Kc4 f5 Kb5 f4 h4 b3 e4 g4 d6 Ke6 h6 g3 d7 c4 b7 b2 d5+ Kf7 h5 c3 e6+ Kf6 e7 g2 e8Q c2 a7 Nc6 b8B Qe7 e5+ Kg5 e6 Qb4+ Ka6 Be7 h7 Qd2 h6 Bb4 e7 Bc3 Be2 Nd4 Na3 b1Q Bd6 Qb3 Nf3+ Kf6 Ne5 g1Q Nac4 Kf5 Ne3+ Kg5 Ng2 Qh2 Re1 Qe3 Bd2 c1R Bb4 Qb2 Qb3 Rc2 Bd1 Kf5 d6 Qeh3 Re4 Qe3 Qb8 Qhh3 e8Q Ne7 Qc7 Rg8 h8Q Rg6 h7 Re6 Qg7 Nc8 h8B Rc1 Qa5 Nc2 Qc5 Bd4 Bbc3 Qe1 Qa5 Bg1 Qc7 Rb8 a8N Ne3 Qa7 Rb1 Nc7 Ra8 Qg3 Rc1 Bf6 Qb1 Qg7 Rc2 Ba5 Rc3 Be7 Rd3 Bac3 Qb2 Qeh8 Qe2 Qh4 Qh5 Qe1 Qe8 Qa2 Qb4 Qb3 Qb7+
b1nR2q1/1K2Nr2/2PqQ3/QpB3NR/P4k2/8/3rRr1b/NrQ2R1N w - - 0 1 illegal: No possible last move
2n1bq2/1q1RB3/1knQP1p1/2N3BN/BK1p4/3BN2Q/rPr5/bNQ5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 c6 a6 Be3 Bd6 Bc1 Bc5 Bg2 Bb6 Bf1 Ba7 b6 Ke7 bxa7 Ke8 e4 f5 e6 Rh6 e5 Rh7 Ra4 Rh8 Re4 fxe4 Kd2 d5 Kc3 a5 h4 a4 e7 g6 h6 a3 h5 a2 h7 a1B h6 e3 c7 Kd7 e8B+ Ke6 Bd3 e2 Nh3 Na6 Ba4 Nf6 Bg5 Nb4 Nf4+ Ke7 e6 Kd6 Nh5 Bb7 c8N+ Kc7 Nd6 Bc6 Nf5 Bb7 Ne3 Rf8 h8Q Qe7 h7 Rad8 a8N+ Kd6 Nb6 Kc7 Nd7 Ra8 Nc5 e1Q+ Qd2 Qc1 Rd1 Kb6 Qh2 Rg8 Qd6+ Bc6 Kb3 Ne4 c4 Ra6 Qc3 Qe8 h8B Qf8 Bhf6 Qd2 Ka3 Qg2 Be7 Rg7 Rd2 Rf7 Qc1 Rf2 Qh1 Re2 Qh3 Ra5 Rd1 Rc2 Kb3 Na6 Rd2 Nb8 Kb4 Qgf3 Bb5 Ra3 Ba4 Ra2 Qf4 Qf2 Be2 Rc1 Nd3 Nd6 c5+ Ka6 Bf1 Bb5 c6 Qf3 c7 Be8 c8Q+ Kb6 Qc3 Nc8 Nc5 Qe4+ Rd4 Qh1 Bd3 Qf3 Qe1 Rc2 Qc1 Qh1 Re4 Qg2 Re5 d4 Rd5 Qf3 Rd7 Qb7 Qd6+ Nc6+
RnQnq2n/1N2QRN1/1KP1pB2/8/P5n1/2pR4/1Q1Q1n2/1N1bnk1N w - - 0 1 legal: proof: f4 f5 b4 c5 g4 g5 gxf5 a5 bxa5 b5 c4 e6 e4 b4 Be2 Ra6 d4 Rb6 Bf3 Rb5 cxb5 c4 Bg2 Bc5 dxc5 h6 Bf1 Rh7 Be2 Rf7 e5 h5 Bg4 Rf6 exf6 hxg4 Ke2 Kf7 Ke3 d5 Kd4 b3 h4 c3 c6 g3 Kc5 g2 h5 g4 h6 b2 h7 g3 h8N+ Ke8 f7+ Ke7 f8R d4 b6 d3 b7 d2 a6 Qc7 a7 Qd6+ Kb6 Qd7 a8N Kd6 f6 Kd5 f7 Ke4 f5 Kd3 f6 Nh6 Nh3 g1N Nc7 g2 Ne8 Ng4 Ng7 Nf3 Nf2+ Ke3 a4 g1N Rh3 Qe8 Nh1 Ne2 Rg8 Bd7 f8Q Nf4 f7 Ng6 Qe7 Kd3 Qc2+ Ke2 f8Q Ne1 Nf7 Kf1 Rd3 d1N Nd6+ Ndf2 Bg5 Nh8 Qf4 Bc8 Qfd2 Bd7 Bf6 Bc8 Na3 b1N Qb2 Bd7 Qe3 Nd2 Nb1 Nde4 Qed2 Ng5 Ra2 Na6 b8Q Ngf7 Qc8 Nd8 Nb7 Nb8 Ra1 Qh5 Rf8 Be8 Ra2 Bg6 Rf7 Be4 Ra3 Qg6 Rb3 Bf3 Rb5 Qh5 Ra5 Bd1 Ra8 Qg6 Nh5 Qg8 Ng7 Qe8
N1R5/4KrPk/1RNQ3p/1R1R2nq/2QpP1n1/6b1/r4NpQ/3QBb2 w - - 0 1 legal: proof: d4 a5 f4 b5 a4 e5 axb5 c5 fxe5 Ne7 dxc5 Ng8 b3 Qb6 b4 Qd8 bxa5 g5 h4 f5 g4 Ba6 Bh3 Qc7 hxg5 Bb7 g6 Bc8 g5 Qd8 Bg4 fxg4 Kf2 d5 Ke3 h6 Kd4 g3 e4 g2 c4 Ra6 b6 Be6 c6 Bd7 e6 Rh7 Ke5 d4 c5 Rh8 g7 Nf6 g8Q Nh7 b7 Qb6 g6 Qa7 c7 Nf6 c8R+ Ke7 c6 Ne8 g7 Qa8 c7 Bb5 Nf3 Nf6 Nc3 Ne8 Rd8 Bc6 c8R Ra7 a6 Nc7 Bd2 Rh7 Ra5 Rh8 Rdd5 Ba4 Be1 Rh7 Rab5 Rh8 Rb6 Bb5 Rh5 Bd3 Kf5 Bb5 Ne5 Nc6 b8Q Bf1 Rg5 Qb7 Kg6 Ra8 a7 Qa6 Kf5 Qe2 Kg6 Qh5+ Kf5 Nd8 Nc6+ Ke8 Rdb5 Nd5 e7 Nf6 Qc4 Ng4 Qd6 Rg8 Rd5 Kf7 Qh2 Rh8 e8Q+ Kg8 Qe6+ Nf7 Qed6 Kh7 Ke6 Rg8 Rgf5 Ng5+ Kd7 Be7 Rdb5 Bf6 Rfd5 Be5 Ke7 Rf8 Qf4 Rb8 Qh2 Bg3 a8N Rf2 Qa1 Rd2 Nd1 Ra2 Nf2 Rb7+ Nc7 Rba7 Qd1 R7a4 Na8 Ra7+ Kd8 Rf7 Ke8 Rf8+ Ke7 Rf7+
q1Q1r1R1/k5b1/q4BKR/2nN2Q1/1n1P3R/rnN1r3/1RNP2q1/1b4NQ w - - 0 1 legal: proof: e4 f5 exf5 d5 a4 b5 axb5 d4 c3 Bb7 cxd4 Bc8 f4 h5 g4 g6 g5 Bb7 Bh3 Ba6 fxg6 Bb7 f5 Bc8 Bg4 hxg4 Ke2 Kd7 Kd3 e5 Ke4 c5 b4 Kc7 h4 Kb7 b6 a5 h5 a4 h6 c4 f6 g3 b5 g2 g7 a3 g6 c3 h7 a2 f7 c2 Nc3 Be6 Rh4 Nc6 Qh5 Kb8 b7 Nce7 Ba3 c1N Qg5 Nd5 Be7 Qa5 Bf6 Ka7 b8N Nb4 Na6 Bb3 Kf5 e4 Rb1 a1Q Rb2 e3 Rh6 Nbd3 Nb4 e2 Nc2 e1R Rh4 Nc5 b6+ Kb8 b7 Ba2 Rh6 Ka7 b8R Bb1 Re8 Q1a3 Re4 N1b3 Rf4 Re3 Rfh4 Bd6 f8Q Qa6 Qc8 Bf8 Be7 Nf6 g8R Qa1 g7 Nd5 Bf6 Nb4 Kg6 Be7 Rd8 Bf8 g8N Bg7 Ne7 Re8 h8Q Q1a4 Ned5 Q4c6 Nge2 g1Q Qh7 Qg2 Ng1 R8e4 Rg8 Qcb7 Qf5 Rae8 Qc8 Qa8 Kh5 R4e7 Qe4 Rb7 Kg6 Rb5 Qf3 Ra5 Qfh3 Ra4 Qh1 Ra3
1nR1r1r1/n1r3k1/2Q2q2/1P2n1b1/N3N1BN/2K2Q1N/R2PbR2/R2Q2qq w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 h4 c5 d6 a5 h5 e5 b4 e4 f6 e3 h6 a4 b6 e2 b7 c4 b5 c3 f7+ Kd7 h7 Ke6 d7 Kf6 Nh3 c2 Nc3 c1N Rh2 a3 Na4 Ne7 g8N+ Kg7 Nf6 a2 Ne4 g4 Rf2 Qb6 d8Q g3 Qd5 g2 Qc6 Rg8 h8N g1Q Nec5 Nd5 Ne4 Be7 f8R Bg4 Rc8 Nd7 b8Q Nb4 Qa7 Bg5 Qab7 Ra7 Qa8 Nb8 Qab7+ Kh6 g7+ Kh7 Qf7 Rc7 Qf3 Qd4 Ng6 Qf6 Nh4 Qh1 Qb7 N4c6 Qa6 Na7 Qc6 Re8 g8R Kh6 Rg7 Rg8 Rd7 Qg1 Rd3 Kg7 Ra3 Bh5 Rb1 a1Q Ra2 Qab2 Rba1 Qb1 Rh2 Qh1 Kf2 e1R Be2 Nb3 Rg2 Na5 Rh2 Nc4 Rg2 Ne5 Rh2 Ng6 Rg2 Nf4 Ke3 Bg4 Rf2 Ng6+ Nf4 Ne5 Kd4 Qg1 Kc3 Qh1 Nh3 Bh5 Bc4 Re2 Be6 Qc1+ Qc2 Qcg1 Qd1 Re1 Qd3 Bf3 Bg4 Be2 Qf3 Bc4 Nd6 Ned7+ Kc2 Ree8 Ne4 Ne5 Kc3 Be2
1n1K1BrQ/2BB2Q1/P6n/3rQNPN/2q3N1/2r3b1/QRrbrb2/2Bk4 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 g4 Bd7 a4 Ra7 Ra3 Qc8 Rf3 Bb5 Rf4 gxf4 h3 Be2 g5 Bg4 hxg4 Qd8 Ke2 Ra6 Ke1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 Ke6 c5 d4 b5 g6 h5 f7 h4 g7 c4 d6 c3 a6 h3 a5 h2 d7 c2 g5 Kb3 f6 b4 a7 f3 d5 f2 d6 Rh6 Nh3 Rh8 Nc3 Qc8 Qe1 Qc4+ Nd5 Nh6 Nf4 Rg8 Bh3 f1R d8Q Rf2 Qe5 Re2 Re1 h1R d7 Rf1 Nh5 Rff2 a6 Rf3 Qa5 Rg3 d8B Rc3 Bf4 c1B Bc7 Be3 Rb1+ Kc2 Rb2+ Kd1 Qa2 Bf2 Bc1 b3 Bf5 Nc6 Kd7 Rc8 a8Q e6 Bd3 Bb4 f8B Ba5 f7 Nb8+ Ke7 Rcc2 Ndf6 Bd2 Be4 Rd8 Bh7 Rd5 Ng4 Bg3 Bf5 Bf2 Qc3 e5 Bd7 e4 Kd8 e3 Qe5 Bg3 Rb1 b2 Qb7 Rh8 g8N Rc3 Ne7 Rg8 Nf5 Rc2 Ra1 b1R Qa7 Rb3 Rb1 Rbc3 Rb2 Rf2 Qad4 e2 Qh8 e1B Qde5 Rg7 Bb4 Re2 f8Q Rg6 Qfg7 Bef2 Bbd6 Ba7 Bf8 Baf2 Qf7 Rg8 Qff6 Qd3 Qfg7 Qc4
b4n1q/1R2q3/Q1RB1Qn1/P1Rn2N1/2KN1Nk1/2P2r2/n2Qb2R/3Qnr2 w - - 0 1 legal: proof: g4 c5 f4 f5 e4 h5 b4 a5 bxa5 e6 d4 Nc6 dxc5 Qc7 e5 Nb8 gxf5 Be7 Be2 Qd8 Bg4 Bf6 exf6 hxg4 Ke2 Kf7 Kd3 b5 h4 d5 a4 g5 a6 e5 c6 d4 a7 b4 h5 b3 h6 b2 a5 e4+ Kc4 d3 h7 g3 c7 g2 Qd2 g4 Nf3 g1Q Rh2 e3 Nd4 e2 Nc3 e1N Nce2 b1N Ba3 g3 Bd6 Nc3 Rb1 g2 Rb7 Na2 c3 Ne7 Rh6 Rg8 h8R Rf8 Rg6 Nd7 Rh2 Rb8 a8Q Qe3 Qa6 g1N Qd1 d2 Rgh6 Kg8 f7+ Kg7 Re6 Ra8 f6+ Kg6 f5+ Kg5 Nf4 Ne2 Re5 Qe4 Rc5 Ng6 Rc6 Qee7 Rc5 Rh8 f8N Rh3 f7 Rf3 f6+ Kg4 N8e6 Qh8 Ng5 Ndf8 Rc6 Bf5 c8R Be4 Rc5 Rf1 R8c6 Re8 Qc2 d1B Qd2 Nd7 f8Q Rb8 Ng2 Nef4 f7 Nd5 Qd8 Ndf8 Nf4 Bh1 Qdb6 Re8 Qb1 Be2+ Qbd3 Qd7 Qd1 Re3 Qd2 Ref3 Qd1 Nh7 f8Q Qe7 Qf6 Nhf8 Rbc7 Rh3 Rb6 Ndb4 Rc8 Bb7 R8c6 Nd5 Rb1 Ba8 Rb7 Bf3 Q3d2 Be2+ Kb3 Rd3 Kc4 Rdf3+
B2b1Q2/k1r2q2/1rQKQ3/N1RNP3/3rN3/n1Q2r1n/P1q1bB2/n2NB3 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 d5 bxa5 f5 gxf5 d4 Na3 d3 cxd3 Qd7 d4 Qe6 d5 Qd6 Rb1 Qf6 Rb4 Qd8 Rg4 hxg4 Kf2 Kd7 Ke3 c5 Ke4 Kc7 h4 b5 d4 Kb7 h5 g5 e6 g3 Ke5 g4 e4 b4 d6 g2 d5 b3 f6 b2 e7 b1N e8N g3 f7 c4 a6+ Ka7 d7 c3 d6 c2 h6 Qa5+ Qd5 Bg7+ Nf6 Qa4 d8Q Qb3 f8Q Ne7 h7 Qc4 d7 Qb3 Ne2 g1R Nc3 g2 Qe6 Nd5 Bd2 c1Q Qde8 Nc6+ Kd6 Nf4 d8B Na5 Rh5 Qcc2 Be1 Nh3 Qc6 Rb8 Rc5 Rb6 Nc4 Na3 Nd1 Bd7 Be2 Rf1 Bf3 g1R e5 Rg8 h8Q Rg4 Ne4 Bf6 Qhh6 Bh4 Qd2 R8g7 Qc3 Rf2 Bh1 Rf3 Bg5 Bc8 Be3 Bd8 B3f2 Rc7 Bg2 Qa4 Bh1 Nb3 Na5 Na1 Bg2 Qc1 Bh1 Qf4 Bg2 Qc2 Bh1 Kb8 Bg2 Bd7 Bh1 Qf7 a7+ Kc8 a8N Kb8 Bg2 Ka7 Bh1 Bc8 Bg2 Ba6 Bh1 Rb8 Nb6 Be2 Nd5 Rb6 Nef6 Rg5 Ne7 Rb2 Qb5 Re3 Ba8 Rg4 Qc6 Rb6 Ned5 Rd4 Ne4 Rf3
1R2B1q1/2B2nnq/RBRRn2P/1PBQ3r/2bNq2Q/2K3b1/Q4n2/2k4r w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 h5 g5 g6 Na3 Bh6 Nc4 Bg7 Ne5 Bh6 fxg6 Bf8 Ng4 hxg4 f5 Qd6 Ra6 Qd7 Ra1 Qd8 d4 Kd7 Kd2 Kd6 b4 c5 h4 a5 b6 e5 b7 e4 h5 c4 b5 c3+ Kc2 a4 g7 g3 f6 e3 f7 a3 g6 e2 Bg5 e1Q Bh3 a2 Qb1 g2 Bg4 Qde7 Bd7 Nf6 g8Q Ne8 g7 Nc6 b8R Ne5 Ne2 g1Q Bf4 Qgg5 Bc6 Be6 Qh7 Ra7 g8Q Ng7 Kb3 c2 Be8 c1N+ Kc2 Qeh4 Kc3 Nd3 Rc1 Nf2 Qhe4 Ra5 Qh1 Qhg4 Qh4 Qg6 Bg3 Q4e4 Bf4 Qb7 Qd3 Be7 f8B Ra4 Be3 Nf7 Qd2 Rb4 Qd1 Rb1 Qdh1 Kc7 d6+ Kb6 d7 Ka5 d8R Ka4 d5 Ka3 d6 Bc4 d7 Bd6 Nd4 Qh7 Q1h2 Qbd5 Qe5 Qe6 Qd5 Q6g6 Rc2 Rh1 Bf4 Bc5 Bc7 Bd6 Rdc8 Qgg4 d8B Qgg2 Rd1 a1N Rcc1 Nc2 Ra1+ Ba2 Bb6 Qg5 Rc5 Bg3 Bdc7 Qgg6 Nb3 Nd4 Rc6+ Bd6 Rd3 Nde6 Nd4 Qg5 Rf3 Qgg6 Rf6 Qg5 Rd1 Bc4 Rh6 Ka2 Rd3 Bh2 Bfc5 Kb1 Rd2 Qgg4 Ra2 Kc1 Ra6 Neg5 Rhd6 N5e6 Qf8 Bf4 Qfe7 Qgg6 Qeg5 Qg8 Qg2 Bg3 Qgh2 Rh6 Qg2 Q6h7 Qgh2 Rf6 h6 Rf5 Qg2 Rh5 Qgh2 Nd3 Qa2 Nf2
2B3n1/Qr2b2P/P3B2q/R1b2qnN/Q2q2kB/2r2R2/R4Qbb/1BR2K2 w - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 a4 cxd5 a3 bxa3 Ra5 a4 Ra6 a5 Ra8 g4 h5 g5 g6 Na3 Qd7 Nc4 Qd6 Ne3 Qd7 fxg6 Qd6 f5 Qd8 Ng4 hxg4 a4 Kd7 h4 c5 d4 e5 h5 b5 a6 c4 g7 e4 h6 g3 f6 b4 a7 e3 a5 c3 f7 c2 d6 Ke6 h7 Kf5 d5 b3 g6 g2 d7 b2 d6 b1Q a6 e2 Bg5 c1B Ra5+ Kg4 Qa4+ Kg3 Nh3 g1Q Nf4 Qf5 Bh4+ Kg4 Nh5+ Qd4 Bh3+ Kf3 Rg1 Qe8 d8R Be7 f8Q Qc6 d7 Bca3 Qf7 Bad6 Rf8 Bh2 d8R Nd7 Qf6 Rb8 a8Q Nc5 Qa7 Rb6 Rg2 Bd7 Rc8 Ne4 Rf7 Qcd6 Rc1 Bc6 Rf8 Ng5 Qf7 Qff6 Bc8 Qf5 Rf2+ Kg4 Qf6 Nh6 g8B Rb7 g7 Bh1 Ba2 Ng8 Bb1 Q6f4 Qfb6 Qfd6 Rf3 Qh6 Re8 Bc5 Ree3 Be7 Kf2 e1B+ Kf1 Bd2 Re2 Bdb4 Ra2 Bbc5 Qb2 Nf6 Qf2 Rg8 Bd7 Rc8 g8B Rcc7 Bf7 Ng8 Bde6 Ba3 Bd7 Rc3 Bc8 Bac5 Bfe6 Bg2+
4Q1n1/bK1P2N1/3Q1Pn1/3B3R/rq2Q3/b4Rrr/rrR1r1N1/Q3NNk1 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 f4 h6 b3 Qe8 f5 Kd6 Bb2 Ba6 Bf6 Bc8 Bg5 hxg5 f6 Bf5 gxf5 Kd7 Na3 Qc8 Nb1 Qd8 Ke2 Kd6 Kd3 Ke5 Kc4 Ke4 Kc5 e5+ d6 a5 h4 g6 d4 Ke3 b6 Kf2 d5 e4 b7 e3 b4 a4 b5 a3 b6 c6 h5 a2 h6 g4 h7 g3 Qd3 e2 Qe4 e1B Rh5 g5 Bc4 g2 Nd2 g4 Rc1 a1R Ngf3 g1R Rc2 g3 Nf1+ Bd2 Ne1 g2 Ba2 Be7 f8N Ra4 Ne6 Qf8 f7 Rh1 Ng7 g1R Bc4 Rh3 Bb3 Rgg3 Ba2 Qc8 f8R Kg1 Bb3 Bd8 d7 Bc1 d6 R1a2 Bd5 Rh2 Rf7 Re2 Rf6 Bc7 d8N Qd7 Nde6 Qe7 Nf4 Ba3+ Qb4 Qe4 d7 Bd8 Kd6 c5 Nfg2 Nc6 b8Q c4 b7 Bb6 Qe8 c3 b8Q Nce7 Rf7 Ng6 Kc6 Qe7 Qe4 Qb4 Qd6 Rb2 Kb7 Ra2 Rd2 c2 Rf8 c1R Rc2 Rb1 Rf7 Nh6 Rf6 Rbb2 Rf7 Rg8 h8Q Rh3 Q8e5 Rc8 Qhe8 Rcc3 Q5d4+ Rce3 Qd1 Reg3 Qa1 Ra5 f6 Ra4 Re7 Ng8 Ree5 Qd4 Ref5 Qb4 Rf3 Ba7+
1B1b4/KPq1kB2/2q1B3/5bR1/q3N1N1/n2P2r1/nQ2b1QN/1nBQ1qN1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 f4 f5 e4 d4 exf5 d3 f6 Be6 f5 Bd5 Ra4 Bb7 cxd3 Bg7 d4 Bc8 d5 Bf8 g4 a6 h4 Bh6 Ra3 Kf8 Rf3 Bg7 Rf4 gxf4 g5 Ke8 g6 Bf8 Bh3 a5 Bg2 Ra6 Bf1 Rc6 Qb3 Rc3 Qc2 Rg3 Qd1 Rg5 hxg5 Bb7 Be2 Ba6 Bf1 Bc8 Kf2 e5 d6 c5 d3 h5 f7+ Kd7 g7 h4 f6 h3 b6 e4 g6 f3 Ke3 h2 b5 a4 b7 c4 Kd4 a3 Kc5 e3 b6 c3 Nd2 e2 Ne4 Be7 f8Q e1Q f7 Nf6 g8N a2 g7 a1Q Nh6 c2 g8B f2 Qg7 Nd5 f8Q Nc6 b8B Nc3 b7 Nd4 Qff6 Ndb5 Bf7 Rg8 Ng4 Qa4 Bh3 Nb1 Qb2 f1B Qg6 Qda5 Qgg7 Qac3+ Kb6 N5a3 Qg5 Kd8 d7 Be2 Qg6 Bf6 Qg7 Ke7 d8N Bd7 Ne6 Qf1 Nd4 Bf5 Ndf3 Qc8 Nge5 Bh4 Qg2 Rg3 Ng4 Qcd7 Be3 c1N Bh6 Qc4 Ka7 Na2 Bc1 Qdc7 Ne3 Bh7 Bhe6 Bf5 Ng4 Bg5 Nh3 Q4c6 Rg1 h1Q Nfh2 Qff4 Rf1 Bh4 Rf3 Qf1 Ng1 Kf8 Rf2 Bd8 Rf3 Ke7 Rf2 Bf3 Rc2 Be2 Rc5 Bh7 Rg5 Bf5 Nd2 Qb4 Ne4 Qba4+
1QB2Q2/n2qq1Q1/3PqR1B/nrP3B1/1Rbkq1QR/8/1K3b1B/3N1nn1 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 c5 d4 a5 dxc5 d5 g4 h5 gxh5 d4 Nc3 Ra7 Kd2 Rd7 Ke1 Rd5 exd5 Na6 Ne4 fxe4 Bd2 Nb8 Bg5 Nc6 Bc1 Nb8 Kd2 Kf7 f4 Kf6 h4 g5 b4 e5 c4 d3 Kc3 g4 f5 e3 d6 e2 b6 e1Q+ Kb2 e4 c6 Ke5 b5 d2 b7 e3 h6 a4 h5 g3 f6 g2 c5 e2 b6 Kd4 c7 Kc4 h7 Ne7 h6 Bg4 c8Q Kd4 f7 Be6 Nh3 g1N Nf2 Nec6 Bh3 Be7 f8B Na5 Rb1 Nbc6 b8Q Bd5 b7 Bc4 Qbc7 Rg8 b8Q Bh4 h8R Qe7 h7 Na7 Bh6 Re8 Rf8 a3+ Kc2 a2 Rf6 a1N+ Kb2 Nc2 h8B Ne3 Q7b7 Qe4 Qg7 Nf1 Rh2 Re7 Qcf8 Qe6 Qa4 d1Q Bcg5 Rb7+ Qb4 Qa4 Nd1 Qe4 Bc8 Bf2 Rh4 Qd7 Qb3 Nb5 Qf3 Rb6 Qg4 Na7+ Ka3 Rb7 Rb4 Rb5 Kb2 Qd2+ Ka1 Qe3 Kb2 e1Q Qg6 Q4f4 Re6+ Kd5 Be5 Qf5 Bef4 Kd4 Rf6 Qee7 Bh2+ Q1e4 Qgg7 Qfe6
3R4/Br2QP2/bpBr1q1B/5k2/2Q1R2Q/1B3n1R/n1PnbrQ1/N1K1b3 w - - 0 1 legal: proof: e4 c5 f4 a5 b4 f5 bxa5 c4 exf5 c3 dxc3 Kf7 c4 Ke8 c5 Ra7 Na3 Ra6 Nb1 Ra8 g4 h5 g5 g6 Nd2 Qc7 Ne4 Qb6 Nf2 Qc7 fxg6 Qd8 Ng4 hxg4 f5 Rh6 Bg2 Rh5 Bf1 Rh8 Kd2 e5 h4 Ke7 a4 d5 c6 e4 f6+ Ke6 a6 d4 f7 g3 a7 g2 g7 d3 g6 Rh5 c7 Ne7 g8R Nf5 g7 Be7 a5 Bd6 a6 Nc6 Qe1 Nfe7 Nf3 g1R Nd4+ Ke5 Ra4 Nd5 Nb3 Qe8 Na1 Kf5 Rh3 Qe7 Rd8 Na5 g8Q Bg3 Qf8 Rb8 a8Q Nc3 a7 Qf6 Qe7 Rh6 h5 Na2 Bg2 Rg6 h6 Rf1 h7 e3+ Kd1 d2 h8B Rh6 Bc6 Nb3 Re4 Rf2 Bg7 Rg6 Bh6 Bh4 Bb2 b6 Be5 Ba6 c8Q+ Qe6 Bd5 Rb7 Qc4 Qc6 Bb8 Rd6 Qd3 Qc3 Qc4 Qf6 Qh1 Re2 Qg2 Be1 Qg3 Rf2 Qh4 Rbd7 Qac6 Rb7 a8B Rf3 Ke2 d1B+ Kd3 Rf2 Ba7 e2 Ke3 Bb4 Kd3 e1N+ Ke3 Nf3 Be6+ Kg6 Q6d5 Rb8 Bc6 Be1 Qd2 Rb7 Bed5 Rf1 Qg2+ Kf5 Kd3 Nbd2 Ke3 Nd4 Kd3 Bh5 Ke3 N4f3 Ke2 Rf2+ Kd1 Nc3+ Kc1 Nh2 Qd4 Bhe2 Bb3 Nhf3 Qc4 Na2+
1QnQ1Nr1/2R5/NPN2r1q/1R2n2p/bB1Pb2Q/1kb4r/5KN1/1bR2R2 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b4 g5 hxg5 a6 e3 Qd7 b6 Kd8 b5 Ke8 b7 Qd6 b6 Qd8 Bb5+ axb5 d4 Ke7 g4 c5 d6+ Ke6 e4 h5 g6 f5 g5 f4 d7 f3 g7 b4 g6 c4 Nd2 c3 Ne2 b3 Nf1 c2 Kf2 b2 Qe1 b1B Bd2 c1R Ne3 Rc2 Bb4 Qe8 d8N+ Kd7 Rf1 Na6 b8Q Ne7 g8Q Rc7 g7 Qg6 Nf4 Rc3 Nc6 Bb7 Neg2 Rh6 Ne6 Nc8 Ra5 Rb3 Rb5 Nc5 Qh8 Qg5 g8R Rf6 Rg7+ Be7 Qg8 Qh6 Qh8 Na4 Qg8 Nb2 Rh7 Nc4 Nf8+ Ke8 e6 Ne5 Qg5 Bd6 e7 Rc3 Rh8 Kf7 e8N Rb3 Nc7 Bc5 Ba3 Bb4 Na6 Bc3 Bb4 Ra3 Qh4 Rb3 Qe3 Ra3 Qeg5 Rb3 Ng6 Ke6 Rh7 Ra3 Rc7 Rb3 Ke3 f2 Ke2 Ra3 Rc1 f1B+ Ke3 Nf3 e5 Bfd3 Rf1 Bdc2 Kf2 Ba4 Rc1 Rf7 Qd8 Rf6 Na5 B7e4 Nf8+ Kf5 e6+ Ne5 e7 Rb3 e8R Ra3 Nd7 Rb3 Rf8 Ke6+ Kg1 Ra3 Nc6 Rb3 Bc5 Kd5 Bb4+ Kc4 Rf7 Ra3 Nf8 Kb3 Qh1 Rf3 Qhh4 Rh3 Rf6 Ra2 Rff1 Rf2 Rg7 Rf6 Rc7 Rg6 Kf2 Rg8 Rd7 Ra7 Rf7 Rd7 Re7 Rd6 Rc7 Rf6+
1R1QbB2/2R4q/3n1BBb/p1BQ2K1/Q1R2n2/rP1qRr1k/Nn1P4/2n5 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 h5 g5 g6 Na3 Bh6 Nc4 Bg7 Ne5 Bh6 fxg6 Bf8 Ng4 hxg4 f5 Qd6 Ra6 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 a5 h4 e6 b6 g3 f6 c4 f7 g2 b7 c3 d6 c2 h5 Nc6 b8R Ne5 g7 Nf6 g8Q Bg7 f8B Nf7 Ne2 g1Q g6 Qa7 h6 e5+ Kf5 e4 h7 e3 Rh4 Ba6 Rc4 Bb5 Ra3 Nh5 Nc3 e2 Na2 e1N Re3 Nf4 Bd3 Qac7 Be4 Ned3 b3 Nb2 Qg4 Ra7 Qh4 Rb7 Kg4 Ke6 d7 Ke5 Rc8 Nd6 Qf7 Rg8 h8B Ba4 Rb8 Rb4 Rc8 Qa7 R8c6 Bb5 Rc7 Ra4 Bd3+ Ne4 Bc5 Rf8 Qg8 Ra3 Qf7 Qf6 d8Q Be8 Qfd7 Qfb6 Qh5+ Rf5 Qa4 Qba6 Qh1 Rf7 Kh4 Kf5 Qg2 Be5 g7 Qg6 g8R Bg7 Be2 Qh7+ Bh5 Nd6 Qf3 Qa6 Qd5+ Be5 Bg7 Qb5 Bf8 Rf6 Rce4 Qd3 Rc4 Rf7 Kg3 Rf6 Bg6+ Kg5 Kf3 Kh4 Rh8 Kh3 Rg8 Nd1 Bb2 c1N Rh8 Rf7 Bbd4 Bg7 Bf6 Kh2 Kg4 Nb2 Ree4 Kg2 Kg5 Kh3 B6e7 Nfe2 Re3+ Rf3 Rg8 Be5 Bf6 Nf4 Rgg7 Bc3 Rb7 Be5 Rgc7 Bc3 Rb8 Bd4 B6e7 Bg7 Bf6 Bh6+
k3rNR1/q3Qp2/Kn2B1Q1/3N1Q2/4qbNB/2B1qr1P/BP4b1/3b2Nr w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 Rh6 gxh5 Rh7 d6 Rh8 e4 Be6 f4 Bd7 d4 Nc6 d5 Nce7 f5 Nc6 Ra4 Bc8 Rd4 exd4 e5 Nce7 Ke2 Ng6 Kf2 Nf4 Ke1 Ne6 fxe6 Qd7 Nf3 Qe7 Ng1 Qd8 Kd2 a5 Kd3 c5 Kc4 g5 e7 Kd7 e8N d3 h6 d2 b6 a4 Kb5 a3 h7 g4 h3 g3 b7 a2 b8Q a1Q Qc2 d1B Nc3 c4 Bg5 g2 Qb6 Be7 Bh4 Qc7 e6+ Kd8 d7 Ra2 Nf6 Bb7 Ng4 Qb1 Qf5 Qc2 Bd3 Qe2 Bb1 Ra3 Ba2 Nf6 Qc6 Re8 h8B Bd6 Bg7 Ke7 d8N Bf4 Bh8 Qe4 d6+ Kf8 d7 Nd5 Bd4 Nb6 Nd5 Rf3 Bc3 Ba8 Ka6 Qb8 Ne2 g1R Rh2 Rgf1 Rg2 Rh1 Ng1 Qb7+ Kb5 Qa7 e7+ Kg8 Ne6 Bb7 Bcf6 c3 d8Q c2 Bc3 c1Q Nf8 Qce3 Qdc7 Rb8 e8B Ba8 Bd7 Re8 Qcf6 Bb7 Be6 Ba8 Nd7 Bb7 Nde5 Kf8 Q6g6 Ba8 Ndf6 Bd5 Ned7+ Ke7 Qd8+ Kd6 Qe7+ Kc7 Nf8+ Kb8 Rg3 Qc7 Ka6 Bc6 Nd5 Ka8 Nh2 Qd7 Rg5 Qc7 Ng4 Qd7 Qh6 Qc7 Rg8 Qb8 Qhg6 Bb7+ Ka5 Qa7+ Kb5 Ba6+ Ka5 Qb8 Qh6 Bf1 Qhg6 Bg2 Ka6 Qa7+
2R5/p3n1n1/2q1b1NB/qnnBB3/2N2PQr/nk1PQ3/r3KB2/2Q1Q1N1 w - - 0 1 legal: proof: e4 h5 c4 b5 b4 f5 exf5 d5 cxd5 e6 f4 Be7 a4 Kf7 axb5 Bf6 g4 Bc3 g5 Bf6 gxf6 Kf8 Ra3 Kf7 Rg3 Ke8 Rg4 hxg4 h4 Kd7 d3 Kd6 b6 g5 f7 c5 f8N g3 f6 g2 b5 g4 f7 g3 b7 e5 h5 c4 h6 Kc5 d6 Kb4 b6 e4 h7 e3 d7 e2 Kd2 e1N Rh2 c3+ Ke2 c2 Na3 Na6 b8B Ne7 b7 Kb3 Be3 Nc5 Ng6 Qa5 d8Q Be6 Be5 Rc8 f8B Rb8 Qd2 c1Q Qe8 Nc2 Nc4 Na3 Bf2 Rc8 Rh4 Rc6 Qe3 Ra6 Bh6 Qcc3 Nb6 Qc4 b8Q Qe4 Nf3 Qc6 Qc7 g1N+ Kd1 g2 Nc4 Ne2 Ng1 Rg8 h8Q Nd4 Qg7 Ndf5 Ke2 Rh8 Qgg8 Ng7 Rh5 Bh3 Rf5 Rh7 Rf8 Bc8 Qe6 Bd7 Qg4 Be6 Kd1 Rh8 Be2 Rh7 Bf3 Rh8 Bd5 Rh7 Nh3 g1N Qe1 Ne2 Ng1 Nd4 Qcc8 Ndb5 Ke2 Rh8 Qc7 Ng8 Qee7 Rh7 Rc8 Rh8 Qeh4 Ne7 Qhh3 Qab6 Qe3 Ra4 Bg5 Rh4 Bh6 Qa6 Qca5 Qab6 Qad2 Qa5 Qec1 Nb1 Qde1 Ra2+ Qcd2 N1a3 Qc1 Ra1 Qde1 Ra2+
4n2K/1nqqQ3/B1rp2BN/2QP1R2/Q1r2r2/2kbQPB1/1Nr5/2NBn3 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 c5 b4 b5 axb5 e6 bxc5 Be7 g3 Bf8 Ra4 Bd6 Rg4 Bf4 gxf4 hxg4 Ke2 Ke7 Ke3 Kf6 Ke4 a5 h4 g5 c4 g3 d4 g4 h5 e5 b6 a4 c6 a3 f3 g2 d5 g3 c5 a2 b7 a1R c7 R1a5 c6 Nh6 Nd2 Rh7 Ne2 g1Q Nc4 g2 Nb2 R5a7 Qa4 Qh2 Rg1 Ng8 h6 Rg7 h7 Nh6 h8N Qh4 Nf7 Ng4 Nh6 Ke7 f6+ Kd6 Kf5 Kc5 f7 e4 f8Q+ Re7 Kg6 e3 f5 Qg3 f6 Na6 b8Q Qh2 f7 Nf6 Qe8 Re4 Kg7 Rc4 f8Q+ Qd6 Rh1 g1R+ Kh8 Rg2 Qbb3 Q6e7 Rh5 d6 Qef7 Bf5 c8B Bh7 Bf5 Rc8 c7 Raa8 Qe6 Qed7 Qe7 Rf2 Bd2 Rf4 Nc1 e2 Qg8 Ne8 Be1 Rab8 Qg6 Rbb4 Qg1 Kd4 Bc2 Bf5 Bd1 Rc4 Bh3 Bb1 Bf5 Nc5 Bg6 Nb7 Rf5 Be4 Qbb5 Bd3 Qbb4 Ra8 Qbb5 Ra6 Qbb4 Rc6 c8B Q8c7 Qba5 Nd8 Ba6 Nb7 Q5b5 Re4 Qgg5 Rg2 Bg3 e1N Qf4 Kc3 Qc5 Rc2 Qfe3 Rf4
r2bR3/R3qp1K/P3N1N1/1knr2r1/1P1QR3/q2NqN2/Q6R/Q1r1n2B w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 gxh5 a5 d3 d6 Be3 b4 Bc5 dxc5 b3 a4 bxa4 b3 a5 b2 Kf2 Be6 Ke1 Bb3 cxb3 Qd7 Kd2 Qd6 Ke1 Qd8 Kd2 Kd7 Ke3 Kc6 Kf4 g6 h4 c4 a4 c3 e4 c2 b4 c1Q+ Nd2 b1Q h6 Qc5 a6 Qe8 Kg5 Qb5 h5 Qb6 e6 Bg7 e5 Ne7 h7 Qg8 d4 Qc1 h6 Qc2 a5 Qbc5 a7 Qb5 d5+ Kb7 d6 Kc6 d7 Qb6 Ne2 Qa4 d8N+ Kb5 Bg2 c5 Nf4 c4 Rh2 c3 Nf3 c2 Qd4 c1R Nd3 Qa3 Bh1 Nec6 e7 Qe8 e6 Ne5 Raa2 Qd7 e8R Na6 e7 Nc5 Ne6 Rd8 a8Q Bf6+ Kf4 Rg8 h8Q g5+ Kf5 g4 h7 g3 Qa7 Bg7 Kg5 Bf6+ Kh6 g2 Qg7 g1R h8N Ra8 Kh7 Rgd1 Qg2 Rg5 Ng6 Qdb7 Qa1 Qe4 Qgb2 Qe3 Qd7+ Qc6 Qdd4 Qb7 Qf2 Qc3 Ra4 Qa3 Qfa2 Qc7 Rf8 Qa7 e8R Bd8 Re7 Rd2 Rfe8 Qd7 a6 Qd6 Ra7 Qe7 Ra5+ Kc6 Ndf4 Ned3 Rb5 Ne1 Nd3 Rdd1 Rbb7 Rd2 Rd7 Rdd1 Rd5 Kb5 Re5 Rd2 Re4 Rf2 Ng1 Rff5 Nf3 Rd5
KN2NQ2/Q2P3n/qQ3n2/1RB2R2/1Nqq1npb/RN3P2/4k3/1Qrb2n1 w - - 0 1 legal: proof: c4 a5 g4 b5 a4 d5 axb5 f5 cxd5 h5 gxf5 Nh6 Bh3 Ra6 Bg4 Re6 f3 Re4 e3 Rf4 exf4 hxg4 Kf1 Ng8 Ke2 Bd7 Ke1 Bc8 Kf2 Kf7 Ke3 Kf6 Ke4 e5 d4 c5 b4 g5 h4 a4 h5 g3 b6 g2 h6 a3 d6 g4 Kd5 c4 d7 c3 h7 a2 b5 c2 b7 e4 b6 e3 Na3 e2 Be3 c1Q Rh5 e1Q Ne2 g1N Nc2 Bd6 Nb4 Qc2 Nc1 Qd3 Nb3 Qde2 Qb1 Qf8 d8Q+ Kf7 f6 Be7 f5 Nd7 Kc6 Qg7 b8N Nf8 d5 Ba6 b7 Q1f1 d6 Qc4+ Bc5 Bb5+ Kb6 Ba4 Ka7 Qfd3 d7 Qf1 Na5 Bd1 Nb3 Qfd3 Rg5 Qg6 Qb6 Qdd4 N8a6 Qh6 b8N Bd8 Qd3 Qg6 Nc7 Be7 Rb1 a1N Ne8 Nc2 Ka8 Ne3 Ra1 Nd5 Ra3 Nf4 Qe4 Nh6 Rh5 Rg8 h8Q Nh7 Qb1 Rf8 Nc7 Rc8 Ne8 Ng8 Qa7 Kf8 f7 Qga6 Qe5 Ngf6 Qe6 Rc7 Qb6 Rc8 Nc7 Kg7 f8R Bd8 Rg5+ Kh6 Ne8 Be7 Rg6+ Kh5 Rg5+ Kh4 Rh5+ Kg3 Rf7 Ng8 f6 Kf2 Rf8 Ke2 f7 Ngf6 Rf5 Ng5 Rg8 Ngh7 f8Q Ne4 Rg6 Bh4 Rd6 Nef6 Rdd5 Qcc3 Be7 Qcd3 Rb5 Rc1 Bc5 Q3c4
1rq1q2B/1R1P4/1RNQrNq1/2QPR2p/2b3QK/1r5n/1kr4R/1nN1N3 w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 g6 a4 Bb7 axb5 Bc8 f6 Kd7 f7 Bg7 Nh3 Bh6 Ng1 Bf8 g4 Bg7 h4 Bb7 f4 Bf6 f5 Ba6 g5 Qc8 Bd3 Bc3 f6 Qd8 Bc2 Be5 Bf5+ gxf5 g6 Bf4 Ra3 Be3 Ra1 Bg5 hxg5 Bc8 Kf2 Kd6 Kg3 Kc5 f8N Kd4 b4 h5 d6 a5 d7 c5 d3 e5 f7 e4 b6 a4 b5 e3 g7 e2 g6 e1R b7 c4 b6 a3 Qd2 a2 Qd1 c3 Rh3 c2 Nc3 Re6 Nh7 Nh6 g8R Ng4 f8Q Nf2 g7 Nc6 b8N Ba6 b7 Na5 Nf6 f4+ Kh4 f3 Rh2 Nh3 Bb2 c1R Rb1 a1Q Na2+ Rc3 Qd2 f2 Nc1 f1Q Qd1 Qe2 Nf3+ Ke3 d4 Nc4 d5 Rc2 Nc6 Nd2 b8R Qc8 Rb7 Rb8 Qd6 Bc4 Re8 Qa6 g8Q Rh6 Ne1 Rh8 Ra7 Rb3 Qg4 Rg8 Be5 Rf8 Rb2 Nb1 Rb7 Rg8 Ned3 Qb6 Qdg1+ Kd2 Ne1 Rf8 Qgc5 Rg8 Bf4+ Kc3 Bh6 Qe4 Bg7 Qbd8 Bh8 Qg6 Ra2 Qe7 Ra6 Kb2 Rab6 Qef7 Re7 Rd8 Qb4 Qe8 Qdc5 Rd6 Re5 Re6 Qd6 Qc7 Qb5 Rb8 Qbc5 Qcc8
n1r1b1Q1/KR1pP3/PnQnqb2/1Rb3BB/6q1/NQ6/Q6R/R1B1n1k1 w - - 0 1 legal: proof: f4 b5 d4 e5 fxe5 a5 g4 f5 b4 c5 dxc5 f4 bxa5 Ra6 Nd2 Rf6 Ne4 Rf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kf7 e4 g5 h4 f3 Ke3 f2 Kd4 b4 c4 b3 a4 g3 h5 g2 c6 b2 e6+ Kf6 c7 b1Q e7 g4 Kc5 Ke5 a6 g3 f6 Qd3 Kb6 Kd4 e8R Bh6 a5 Qe7 f7 Qg5 f8B Qe5 c5 Qg7 e5 Qg5 e6 Qf6 c6 Ne7 a7 Bg7 a8Q Bb7 c8R Na6 c7 Be4 h6 Nf5 h7 Nd6 e7 Qe6 Qb3 Bg6 Rb8 Qf3 c8Q Nc7 Rh2 Qfg4 Be2 f1N Rb7 Bf6 Ka7 Ne3 Bh6 Nec4 Bhg5 Nb6 Nf3+ Ke4 a6 g1N Ne1 g2 Nc2 Nf3 Na3 g1B Qab8 Nca8 Qc6+ Kd4 Qa2 Ne1 Bd1 Rg8 h8Q Rf8 Rc8 Be8 Qg8 Kd3 Bf3 Bc5 Bd1 Qh4 Bh5 Qhg4 Qbc7 Kd4 Qb5 Ke4 Rcb8 Kf3 Qb4 Bg6 Qbb2 Rc8 Qc6+ Kg3 Qb4 Be8 Qbb1 Ng2 Qab3+ Kf2 Q1c2+ Kg1 Qca2 Ne1 Rh3 Bb4 Rh2 Nbc4 Rb5 Ncb6 Rb7 Bc5
1nnb4/3brp2/b4bPB/1kBRQ2R/3bq2Q/4QK1R/P2b1QN1/B2B4 w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 Qd7 b4 Qd6 bxa5 Qd8 e4 Kd7 d4 g5 fxg5 Nh6 d6 Ke6 d7 Kd6 d5 Ng8 g4 Ke5 g6 Kf6 e5+ Kg7 Nc3 b5 Ne4 Ra6 Ng5 Rd6 exd6 Kf6 N5h3 Kg7 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 c5 h4 e5 h5 b4 a6 g3+ Kf3 b3 a7 c4 a8Q b2 Qe1 b1B Qa3 g2 Qf2 c3 Be2 c2 Nh3 g1B Bd1 Rh6 Qae3 Ne7 Nf4 Qa5 d8Q Qa8 d7 Ba6 Rh3 Nc8 Ng2 Be7 Ba3 c1B Bc5 Bc2 Qe8 Rh8 d8Q Bf5 Rb1 Rf8 Rb5 Bd7 h6+ Kg8 g7 Bf6 Rh5 Bd2 Qe6 Qc6 Qf5 Qe6 d6 Re8 Qe7 Qc4 Qff4 Ba5 Q4h4 Bd8 Qe6 Re7 Ra5 Kh7 g8R Qd4 Rf8 Kg6 h7 Qb4 Qd5 Kf5 h8B Qb1 Qdd4 Ke6 g6 Qf5+ Qdf4 Kd5 Bg7 Kc6 Bh6 Qb1 Rh8 e4+ Kg3 Bg4 d7 Qb7 Rd5 Bf5 Ra3 Kb5 Qe5 Qc6 Q3c3 e3 Kf3 e2 Qce3 e1B Rh7 Bda5 d8B Bd7 Rd3 Bad2 Ba5 Qa8 Bc3 Qb7 Bb2 Ba5 Ba1 Bd8 Bf8 Bc3 Rh5 Bd4 Bh6 Bh2 Rd2 Bf4 Re2 Qa8 Re1 Qc6 Rh1 B4g5 Rh3 Qe6 Qc3 Bd2 Qce3 Qf5+ Qhf4 Qb1 Q4h4 Qe4+
1rQ2Q2/k7/P3r1pN/3Q1BnP/1rQ3Rq/6R1/nR1Kp2R/b1N1bNn1 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Nc6 bxa3 Bd7 a4 Bc8 a5 Nb8 f4 h6 f5 Qd6 f7+ Kd7 Bb2 Ra7 Bf6 Ra8 Bg5 hxg5 f6 Kd8 Ne2 Bf5 gxf5 Kc8 Ng1 Qd8 Qf3 Kd7 Qe2 Nc6 Qd1 Nb8 a4 Kc8 h4 b5 d4 Kb7 h5 e5 a6+ Ka7 a5 c5 d6 c4 d7 e4 d5 b4 d6 g4 Qd3 g3 Ra3 c3 Ne2 g6 Nd2 g2 Nc1 g1N Rh2 c2 Qc4 b3 Bh3 b2 Rg3 b1R Nf1 Qc8 d8N e3 d7 e2 Kd2 Bg7 f8R Rh7 f7 Qc5 f6 Qf2 Bf5 Rb4 Re8 Rh8 f8R Nh6 f7 Nc6 Re4 Rab8 Reg4 Ba1 Re8 Rg8 f8Q Nf7 Ree3 Rh8 Rb3 Ng5 Nf7 Rh7 Nh6 Re7 d8Q Re6 Qdd5 Qd4+ Nd3 Qf6 Rb2 c1B+ Ke1 Bf4 Nc1 Be3 Qc8 Bf2+ Kd2 R4b7 Qf8 Nb4 Qfc8 Na2 Qf8 Rc6 Qc8 Rb4 Qf8 Ka8 a7 Kb7 a6+ Kb6 a8Q Re6 Qac6+ Ka7 Qcc8 Qd4+ Qd3 Qe4 Q3c4 Qh1 Rhg2 Qh4 Rh2 Be1+
R3bRQn/1nb3qp/1NRb1P1n/3BQQ1P/1Q3Kp1/1BR2r1k/3B4/5r2 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 Ke7 Ke3 g5 h4 a5 f4 d5 c4 g4 h5 a4 c6 a3 c7 a2 c5 Qe8 c6 Nh6 b6 Qd7 b7 Ra5 e6 Kf6 e7 Ra6 e8B Bd6 Qd3 Qd8 Nc3 Ra3 Rh3 Ra4 Bf7 Ba3 Nf3 Bb4 Bg2 Qd7 Bd2 Na6 b8Q Bd6 Qb4 d4+ Ke4 Ra3 Bb3 Qg7 Na4 Rf8 Nb6 Bd7 c8Q Be8 c7 Nf7 Qa8 Ra4 c8R Nh8 Rc6 Ra3 Qdb5 d3 Qc8 Ra5 Qd5 Rc5 Qg8 Rc1 Bh1 Nc5+ Ke3 Nb7 Ke4 Ke7 Qce6+ Kd8 f6 Rf1 f7 Rf2 Qc8+ Ke7 Kf5 Rf1 e4 Rf2 e5 Rf1 Be1 d2 e6 d1N Bd2 Ne3+ Ke4 Kf6 e7 Nf5 Bg2 Nh6 f5 Bd7 e8Q Rf2 Nd4 Rf1 Rhc3 Rf2 Ke3 Kg5 Bgd5 Kh4 Nf3+ Kh3 Qe5 Be8 Kf4 Bc7 Rd1 a1B Rdc1 Bb2 Ra1 Rf1 Ra8 Ba3 Qa5 Bc5 Qb4 B5d6 Qe6 Bd7 Qf6 Rb8 f8R Be8 Qfe6 Rc8 f6 Rb8 Ra2 Ra8 Ra1 Ra2 Qf5 Rc2 Ra8 Rb2 Be1 Rbf2 Bd2 Rxf3+
4N1nb/1KN1k2q/Qn4rP/2r4p/Q1R5/1pB1PrRN/QR1q2b1/3N1R2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 d5 bxa5 e5 fxe5 Nc6 c4 Nb8 cxd5 Ba3 Kf2 Bb4 Ke1 Bf8 gxh5 g6 h4 Na6 h6 Nb8 h7 Kd7 Na3 Ke7 Nb1 Ke8 h5 Ne7 h6 Ra7 Bh3 Ra8 Bg4 Ng8 Bh5 gxh5 Kf2 b5 Kf3 f5 d4 c5 a4 b4 e6 c4 a6 c3 d6 c2 d7+ Ke7 a5 f4 Ke4 f3 Kd5 f2 a7 f1Q a6 Qf2 e3 Qh2 Ra2 Qh3 Bd2 c1R Bc3 Qe8 d8R Qa4 Rb2 Qa1 Qa4 Kf6 e7 b3 e8N+ Ke7 Rd6 Re1 Rc6 Rf1 Rc4 Qg3 Nh3 Rc1 Rf1 Nd7 Kc6 Rc2 d5 Qh4 d6+ Kd8 Qa2 Nb6 d7 Rb8 a8Q Qe7 a7 Bg7 Qb7 Qb4 a8Q Ke7 Qba6 Bb7+ Kc7 Qa5 d8N Bg2 Ne6 Qd5 Qc6 Qd2 Qa6a4 Ra8 Kb7 Ra6 N6c7 Bf6 Ba5 Be5 Nc3 Qb1 Nd1 Bf6 Rh4 Rc4 Bc3 Rf4 Rg4 Rf3 Rg3 Ra5 Qcc4 Rc5 Qca6 Ra5 Nf4 Kf8 Q6b5 Ne7 Na8 Rg8 Qa6 Rgg5 Nh3 Ng8 Rg4 Bg7 Nac7 Ke7 Rh4 Rac5 Rc4 Nf6 h8R Qh7 Rf8 Bh8 Rg8 Rg4 Rg5 Ng8 Rg6 Re4 Rg4 Re6 Rg3 Rg6
k1bQB2Q/pNQb1P2/4K3/1rBn4/Q2p2NN/q5r1/4P2B/nb1NR2q w - - 0 1 illegal: No possible last move, all moves rejected
2QN4/2nB1p2/1rrBRRR1/1r4QQ/3qp1Pb/1B5P/1Bn4K/3krbQ1 w - - 0 1 legal: proof: e4 h5 g4 g5 c4 d5 d4 b5 a4 c6 axb5 h4 cxd5 Qc7 d6 Qd7 e5 Bh6 e6 Kf8 exd7 Kg7 d5 Kg6 Nc3 Bf8 Nce2 Kg7 f4 Kh7 fxg5 Kg6 Ng3 hxg3 d8R e5 b4 a5 h3 e4 b6 a4 d7 g2 Kf2 c5 Kg3 c4 b5 a3 d6 a2 b7 c3 b6 c2 Re8 Ra5 d8Q Rb5 d7 Ba3 Re6+ Nf6 Bb2 c1Q Kh2 Qd2 Ne2 Qa5 Nf4+ Kg7 g6 Kh6 g7 Kg5 g8B g1R Bc4 Rh6 Bb3 Qb4 Bh7 Na6 b8Q Re1 b7 Nc7 Bf5 Qd4 Rf1 Be7 Qh8 Nfd5 d8Q Ne3 Qd5 Bd7 Qbc8 Nc2 b8B Bd8 Rc1 a1R Rg6+ Kh4 Ne6 Rb1 Qg8 Be7 Nd8 Be6 Qe5 Bc4 Bd7 Bf6 Rf5 Bf1 Rf4 Be7 Rff6 Rb6 Re6 Rc6 Rgf6 Rh5 Qa5 Rb5 Qh7+ Kg5 Rg6+ Kf4 Qh5 Ke3 Ref6 Na6 Bd6 Nc7 Re6 Bh4 Ref6 Qd5 Qd4+ Ke2 Qg1 Qd1 Re6 Rbb6 Qag5 Qd4 Rd1 Rb5 Rd3 Rbb6 Rf3 Kd1 Rf2 Ra1 Rf4 Ra5 Rff6 Rab5
k6q/1nnb4/1n1p4/Bp2BrQr/PR2B1PQ/qKN2Q2/5QN1/3NBr2 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 g4 Bg7 a4 Bf8 f5 Bh6 Ra3 Kf8 Rf3 Ke8 Rf4 gxf4 Kd2 Bg5 Ke1 Bh4+ Kd2 Bg3 hxg3 Qb6 Ke1 Qd8 g5 b5 Kd2 h5 Kc3 e5 a6 f3 g6 h4 a7 f2 g4 e4 f7+ Ke7 f8B+ Ke8 c6 e3 g7 h3 f6 e2 c7 e1Q+ Qd2 h2 Bg2 f1N Be4 Ne7 g8Q Nf5 Nf3 N1e3 Bb2 Rh7 Nh4 Qd1 Qg5 Nf1 Bb4 N5e3 Qf2 Nd2 Ng2 Rh4 Ba5 Nb3 f7+ Kf8 Ba1 Rh8 Qfh4 Ba6 c8Q Nc4 Qcc5+ Qd6 Qcf2 Bc8 Rd1 h1R Rd4 Qa3 Bb2 Ncd2 Rb4 Na6 Ba1 Rb8 a8N Qe8 Nc7 Nc4 Nd5 Rf1 Nde3 Rh5 Nd1 Nb6 Qf3 Qc1 Bb2 Nbc5 Ba1 Qe3+ Kb2 Qd8 c4 Qa3+ Kc2 Qf6 Be5 Ke7 Nbc3 Kd8 Qff2 Nb7 c5 Ra8 Qf3 Qc1+ Kb3 d6 Bg3 Kc7 f8B Kb8 Bg7 Qd8 B7e5 Qh8 Be1 Bf5 c6 Bd7 c7+ Ka7 Ne2 Rf8 c8Q Rf5 Qc2 Nc7 Nec3 Ka8 Qcf2 Qa3+
5B1R/QB3PQb/3p1nBr/5r2/2NQn2P/1rpNK1nb/N2b1B1k/3Q4 w - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 e5 dxe5 b4 gxh5 Nc6 c4 Nb8 e4 f5 a4 Qg5 e6 Qg3 e5 Qg6 Ra3 Qg2 Re3 Qb7 Re4 Qb5 cxb5 fxe4 Kd2 Ke7 f4 c5 f5 g5 h6 d6 f6+ Kd8 a6 Kc7 a5 c4 b6+ Kc6 a7 Kd5 h7 g4 e7 g3 e8B b3 a6 g2 b7 b2 e6 Ke5 e7 Kf4 Bg6 Be6 e8Q Bg7 f7 Bd4 Nc3 b1B Na2 Bh3 Qf8 Bd3 Nf3 g1N Ne1 Ne2 Qg7 Nd7 b8B Bf2 Bg2 Nc5 Bc7 Nf6 Bb6 Raf8 a8Q Rb8 a7 Ng3 Qb7 Bc2 a8N Bb1 Qa7 e3+ Kc3 Bd3 Kd4 c3 Bb7 Nce4 Bc5 Bb1 Nb6 Bc2 Nc4 Bd3 Nf3 Be1 Bd2 Kg4 Nfe5+ Kh4 Bc1 e2 Ke3 Bb1 Nd3 Kg4 Ba6 Rb3 Bb7 Bc2 Kd4 Kf3 Bh6 Kg2 Ke3 Bf2+ Kf4 e1R Bb6 Rg1 Be3 Be1 Bf2 Rf1 Ke3 Ng8 Qgd4 Nf6 Bf8 Bb1 Bg1 Rf5 Bf2 Rg8 h8Q Rg7 Nb6 Rh7 Nc4 Rh6 Qg7 Bg4 h4 Bh3 Rf1 Kh2 Rg1 Ne2 Rg5 N2g3 Rh5 Rf4 Nab4 Ng5 Ndb2 Rh8 Na2 Bbf5 Rh6 N5e4 Bh5 Bg6 Rh7 Rf5 Nd3 Rg8 Rh8 Bh7 Qh6 Rg6 Qg7 Rh6 Bg6 Bd2+
1rk3nR/b1B2q1b/1R1p3N/2NQ1r2/bRrQ2NP/K1NQ4/pPb5/4Q3 w - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 dxc5 e6 a4 Qe7 axb5 Qd8 e4 Nc6 f4 Qb6 f5 Nd8 e5 Qb8 Bc4 Qc7 Bd5 exd5 Ra4 Ne6 fxe6 Qb6 Ra1 Qd8 Kd2 f5 Kc3 a5 Kb3 g5 c4 a4+ Ka3 g4 h6 f4 e7 d4 c6 d3 c5 f3 h7 d2 c7 f2 b6 f1B c6 g3 b7 g2 b8R Ra6 Nh3 g1R Rb4 Bb5 Nf4 Nh6 Nc3 Rg7 Nd3 Rg3 Nc5 Bb7 c8N Ba8 c7 Rhg8 h8Q Kf7 e8N Ra5 Nf6 Qe8 Nd6+ Ke7 c8Q R3g4 e6 Qf7 Qc6 Kd8 Qd5 Rc4 Nf5 Kc8 e7 d6 Ng4 Bg7 h3 Rd8 e8Q Bd4 Qee1 Ng8 Nfh6 Be8 Qc2 d1B Qd3 Bc2 Bg5 Bf2 Qhd4 Rb5 Q5e5 Be4 Qed5 Bh7 Be7 Rb8 Bf6 Rd7 Bd8 Re7 Bc7 Re5 h4 Bd7 Rf1 Be3 Rf5 Bg1 Rh5 Rf5 Ka2 a3 Rc1 Bb1+ Kb3 a2 Ka3 Be3 Rb6 Ba4 Rc2 Rb4 Rf2 Rc4 Rf4 Bg1 Q4e3 Qe7 Nd7 Ra8 Rb7 Rc6 Rfb4 Bg6 Nf7 Bbc2 Rh8 Bh7 Nfh6 Qf7 Qee4 Bb6 Qed4 Rc4 Nc5 Ba7 R7b6 Rb8
1bq1BrN1/B2K1Q1Q/1p1NN3/rB2Bnrn/Nq1p4/2r1kP2/P7/Q4R2 w - - 0 1 legal: proof: g4 c5 f4 h5 d4 a5 dxc5 f5 gxf5 b6 b4 Rh6 bxa5 Ba6 Nd2 Bb7 Rb1 Be4 Rb3 Bd5 Rg3 Rh8 Rg4 Bf3 exf3 hxg4 Kf2 Kf7 Kg3 Kf6 h4 d5 c4 e5 h5 g5 h6 e4 h7 e3 a6 d4 a7 e2 c6 e1R c7 Re6 c8Q Re2 c5 Re5 c6 Re2 c7 Bg7 Qb7 Re7 c8N Na6 Ne4+ Kf7 f6 Kg6 f7 Kf5 f8N Qd6 Ne2 Qb8 Ne6 Qe5 N2c3 Nc7 Bb5 Nd5 Na4 Qb8 Nf6 Rc7 Rf1 Nge7 Ng8 Nf6 Bd2 Rc3 Qa1 Qd6 Be1 Qb4 Nd6+ Kg6 f5+ Kh5 Nh6 Rhf8 Ng8 Bh6 h8B Bg7 Kg2 g3 Kh3 g2 Bg3 g1Q Be5 Qh1+ Kg3 g4 Kf4 g3 Qc7 Rac8 a8B g2 Bac6 g1R Be8+ Rg6 Qb7 R8c5 Qe4 Qh3 Qd3 Nh7 f6 Nf5 f7 Rg5 Ke4 Kg6 Bh2 Bh6 B8e5 Nf6+ Kf4 Nh5+ Ke4 Rc7 Kd5 Ra7 Qe4 Ra5 Qc2 Re3 Kc6 Rc3+ Kd7 Bg7 Nc8 Qg4 Bb8 Qh3 Ba7 Be5 Qcb1 Bb8 Be5 Nf4 Nd6 Kh5 Nac5 Kh4 Na4 Kg3 Rc1 Kf2 Rf1+ Ke3 Qc2 Nh4 Qh7 Nf5 Nf6 Rh8 f8Q Nh5 Qff7 Rf8 Ng8 Qh2 Bh8 Qe5 Bf6 Qec5 Be5 Qc8+
1nNQ4/1r4pq/1Q1n3R/Q1qPp1bB/rQ3r2/B1B2B1K/1N2P3/kr3N2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 g4 f5 gxf5 b5 axb5 a4 b3 Be6 b6 Bd7 Ra2 Bc6 Rc2 a3 Rc4 Ba4 Rg4 hxg4 bxa4 Rh7 Nf3 Rh3 Ng1 Rh8 d4 Kd7 h4 Kd6 f4 c5 Kf2 e5 Kg2 a2 h5 a1Q f6 g3 a5 c4 f5 c3 a6 c2 f7 Qg5 a7 Qg6 f6 Ne7 b7 Nf5 h6 Nh4+ Kh3 g2 h7 Qh5 Na3 Be7 f8Q Nc6 b8Q+ Kd7 f7 Qb2 d6 Ke6 d7 Kd5 d8Q+ Bd6 Qa5+ Ke4 Nf3 g1R Nc4 Qa1 Qbb6 Qa2 Ba3 c1R Nb2 Qa1 Nh2 Nb8 Bg2+ Ke3 Bf3 Rf1 Qfd8 Rb1 f8B Be7 Qda4 Bg5 Bfb4 Rf2 Bg4 Rf4 Nf1+ Ke4 Bc3 Nf5+ Kg2 Qg6 Kh3 Nd6 Q4b4 Rg8 h8N Qh7+ Bh5 Rgf8 Ng6 R8f7 Qf6 Rb7 Qfd8 Qa2 Ne7 Qc4 Nc8 Qc5 Rg1 Bf6 Rg6 Be7 Rh6 Bg5 Na4 Kd5 Qb2 Kc4 Qd2 Rb4 Nb2+ Kb3 Qe1 Ka2 Qd2 Nc6 Qe1 Rab8 a8B Ra4 Qh4 Ka1 Qg4 Nb4 Qh4 Na6 Qg4 Ra7 Bf3 Rbb7 d5 Nb8 Qba6 Rbb4 Q6b6 Rb7 Qh4 Rbd4 Qe1+ Rd1 Qd2 Re1 Qd4 Rd1 Qdb4 Rb1
2qKR1rR/qq2pk2/Q4rN1/1P2Q1r1/1R3bB1/Q3P3/2Npr2n/1R1N1N2 w - - 0 1 legal: proof: g4 c5 a4 b5 axb5 Ba6 d4 Bb7 dxc5 Bf3 g5 Bg4 f3 Qc8 fxg4 Qd8 h4 Nf6 h5 Qc8 g6 Na6 Bg5 Ng8 Bf6 gxf6 g5 Nc7 h6 Qd8 Qd4 Ne6 Qd1 Ng7 hxg7 Qc7 Qd3 Qb6 Qd1 Qd8 Kd2 a5 Kc3 h5 Kc4 a4 Kd5 f5 c4 f6 b4 a3 b6 a2 e3 d6 Ke6 h4 c6 f4 c7 d5 c8R h3 b5 d4 c5 h2 c6 d3 b7 d2 b8N f3 c7 f2 Na3 f5 Qa4 f4 Nf3 Rh5 Be2 f1Q Nc6 Rh4 Nce5 Qf2 Rab1 a1R Nc2 Ra3 Rb4 Qg3 Rhb1 h1R Nh2 f3 Nf1 f2 Bg4 Rc3 Qa3 Nf6 g8N R4h2 g7 Qg1 g6 Rc5 Nh6 Qg2 g8Q Qb7 g7 Rd5 Ng6 Rg5 Qh8 Qa7 Bh5 Ng4 g8R Rg2 Qf6 Nh2 Qe5 Rb8 Bg4 Rb6+ Qd6 Rhg1 Rh8 Ra6 Ra8 Qb7 c8Q Rb6 Ng3 f1Q Qc7 Qe1 Nf1 Re2 Qc8 Qa7 Qca6 Qf2 Rb8 Qf3 Ra8 Rb8 Qe5 Qfb7 Nf7 Rf5 Ng5 Rf3 Ne4 Rgg2 Rh5 Bh6 Nf2 Bf4 Nd1 Rgg3 Kf5 Rg1 Rh8+ Kf7 Re8 Qdc7 Rh8 Rg8 Re8 Rgg2 Qc5 Kg7 Ke6 Qd8 Qc7 Qda8 Kd7 Kf7 Bh3 Rg5 Bf5 Qc5 Bg4 Qaa7 Kd8 Bd6 Kd7 Rf6 Kd8 Bf4 Qe5 Qcc8+
n1RBKbkB/1Q5r/2Bnn3/N4p2/2Q2n2/N3pNPn/3NrP2/B5Qr w - - 0 1 legal: proof: d4 b5 b4 d5 c4 g5 cxd5 c6 a4 Nd7 d6 Bg7 d5 Bf6 axb5 Nc5 e4 Bf5 h4 Kf8 h5 Kg7 Ra3 Bg6 Rah3 Nh6 Rh4 Nd7 e5 gxh4 b6 Qb8 hxg6 Ng8 Na3 Qc7 Nb1 Nb8 d7 Qd6 exd6 Bg5 Bc4 Bh6 Ba6 Kf6 Bf1 Bf8 Kd2 Kg7 Kc3 f5 Kd4 a5 Ke5 h5 Ke6 c5 d8B h3 b5 h4 d7 c4 b7 h2 b6 h3 d6 c3 Qg4 a4 Qc4 a3 Bb2 a2 Na3 a1N Nf3 Na6 b8N Nf6 b7 c2 Nd2 c1N Nc6 Nc2 b8Q Nd3 Na5 Rh7 Ba1 Kg8 g7 Ne4 Qb7 Rb8 Bc7 Re8 d8B Nd4+ Kd7+ Ne6 Bb6 Nc7 Bbd4 Nf4 Bd3 Ng6 Rc1 Ng5 Be4 h1R Bc6 h2 Bdc3 Nh3 Bcb2 Ngf4 Rc3 Kf7 g8Q+ Kf6 Qg4 Kf7 Rc2 Na8 Bh8 Rd1 Qg3 h1N Qh2 Re1 Qg1 Ng3 Rc3 Ne4 g3 Kg8 Rc2 Re2 Rc1 Bg7 Rc3 Rf8 Rc2 Rf7 Ke8 Bf8 d7 Rh6 Nf3 Rfh7 Nb3 Nhg5 Nbd2 Rh1 Ba5 Ngh3 d8N Nd3 Ba4 Ndf4 Nc6 Rh4 Bd8 Rh7 Na5 Nd6+ Kd7 Rg7 Bc6 Rh7 Qcb5 Ng7 Q5a6 e5 Qd3 e4 Qc4+ Nf7 Rc3 Nge6 Ke8 e3 Rd3 Nhg5 Rd7 Ngh3 Rc7 Rh5 Rc8 Rh4 Bhe5 Rh7 Bh8 Nd6#
qrQ5/2n1Kq1Q/P2R3B/pRrrB1rq/1p2n3/Q7/BP1R4/2B1kNQ1 w - - 0 1 illegal: No proof kernel
B2KNQ2/k5n1/1p3bPr/r2p1pB1/NbN3q1/1QQ1BnR1/4Pr1Q/B7 w - - 0 1 legal: proof: f4 a5 g4 f5 gxf5 c5 d4 a4 dxc5 a3 f6 e6 f5 Qc7 f7+ Kd8 f6 Qb6 bxa3 Kc7 a4 Kc6 a5 Qd8 a4 g5 h3 g4 Ra3 g3 Rc3 b6 Rf3 Bb7 Rf5 exf5 Bg5 Kc7 Be3 Bf3 Bc1 Bg4 hxg4 Kc6 Kd2 Kb7 Kd3 h5 Kd4 d6 Kd5 h4 Ke6 g2 c4 h3 g5 h2 g6 Ka7 c6 Rh7 a6 Rh6 a5 Rh4 c7 Nd7 c8Q Rf4 c5 Bg7 f8B Nb8 f7 Rf2 c6 Rf3 c7 Rh3 Bg5 Rc3 Nf3 g1B Nfd2 Nc6 Qb3 Nge7 Bg2 Rc1 Nc3 Ra1 Na4 Bb2 Bfh6 Qe8 f8B Ne5 Bfg7 Bc5 Nc4 Re1 Rg1 Qb5 Qh8 h1R c8Q N5c6 Kd7 Ne5+ Kd8 Qb4 Be3 Rh4 Bhg5 Rf4 Qh2 Rf2 Bb7 d5 Rg3 Nf3 Bh8 Rb8 Ba8 Ng8 Be5 Rh1 Bef6 Ba3 Ba1 Rb7 Qc7 Nf6 Qe5 Nh5 Qec3 Bd4 Ke8 Kb8 a7+ Kc7 a6 Bf6 Qbc2 Kc6 Qd1 Kb5 Qdb3 Re7+ Kd8 Ng7 Qg1 Rh6 Qh2 Rh3 Bb7 Rh5 a8Q Rh6 a7 Re4+ Kc7 Rd4 Qf8 Rd2 a8N Ra2 Bc6+ Ka6 Kd7 Ka7 Nc7 Nh4 Ba8 Nf3 Ncb2 Qg4 Nc4 Bb4 Ne8 Be5 Kd8 Bd4 Nc5 Ra5 Na4 Bf6+
1r1K2N1/pB2B3/1Q1pR3/2PQ1R2/3r2P1/bqR2n2/QpQ1Rrk1/2b3Bn w - - 0 1 illegal: No possible last move, all moves rejected
3qBRQ1/7Q/k1nN3Q/1nPpn2Q/B1R1rRr1/B4P2/pKpb3R/q7 w - - 0 1 legal: proof: e4 c5 d4 h5 dxc5 f5 exf5 b6 g4 Bb7 gxh5 Ba6 b4 Bc8 c4 b5 c6 Ba6 c5 Bc8 Nd2 Ba6 Nc4 bxc4 Qb3 Bb5 Qf3 Ba4 Qd1 Bb3 axb3 Qb6 Rb1 Qc7 Ra1 Qd8 Kd2 e5 Kc3 a5 h4 g5 f6 d5 b5 a4 b6 e4 f7+ Ke7 h6 g4 h7 a3 c7 Kd7 c8B+ Kc6 b7 Kb5 b4 a2 h5 g3 h6 g2 Bd7+ Nc6 b8R+ Qb6 Be8 e3 Nf3 g1Q Ba3 e2 Nh4 e1N Rc1 Ng2 Kb2 Ne3 Nf5 Qg6 Qh5 Qb7 f3 Ra4 Rh2 Qg1 Nd6+ Ka6 Bd3 Qc7 Bc2 Be7 f8R Qd8 Rf4 Ne5 Bd1 Bg5 b5+ Ka5 b6 Ka6 b7 Nf5 Rc8 Nd4 b8Q Ne7 Rcc2 Rg8 h8Q Qe1 h7 N7c6 Qc7 Rg6 Qg8 Nb5 h8Q Bh6 Qhh7 Rg4 Qcg7 Bg5 Qgh6 Qh1 Rf8 Bd2 Rc7 Qg1 Rcf7 Qf1 Rf4 c3+ Ka1 Rd4 Rc1 Re4 Ba4 Qc8 Re1 c2 Kb2 Qd8 Rd1 Be1 Rd4 Bd2 Rc4 Qa1+
4k1N1/PN4Qp/2R1r1R1/Rq1N4/1p2n1qp/3QP1B1/1b1Q1R1b/1n1b1KQ1 w - - 0 1 legal: proof: c4 e5 h4 d5 cxd5 a5 f4 g6 fxe5 a4 h5 a3 h6 Be6 g3 Bf5 Bg2 Ke7 bxa3 Bd7 a4 Ke8 a5 Bc8 g4 b5 g5 Be7 Bf3 Ra6 Bh5 gxh5 g6 Nf6 g7 Bf8 g8N Rc6 Kf2 Rc4 Kf1 Rg4 Ke1 Rg7 hxg7 Bc5 Nc3 Bd6 Nb1 Bf8 a4 c5 d4 b4 e6 c4 e7 c3 d6 h4 d5 c2 a6 Bb7 a7 Qd7 a8R Nh5 a5 f5 a6 f4 a7 f3 Nc3 f2+ Kf1 Qc7 d7+ Kf7 e8R Bd6 d8Q Bf8 d6 Ba6 d7 Qc6 Rh2 Qc5 Ne4 Qe5 Nc5 Qd4 Nb7 Qg4 Re6 Nf4 Rc6 Nd5 Nh3 Bd6 Ra5 Nc3 Nf4 Nb1 Nd5 Bc7 Bb2 c1B Be5 Bb2 Bg3 Bc4 Qd3 Bb3 e3 Bd1 Qg5 Na6 d8Q Nc5 Rc8 Bb8 Rg6 Ne4 Rcc6 Bd6 Qe5 Bc7 Qec3 Bb8 Qg5 Ke8 Qcd2 B8e5 Nge7 Rf8 g8Q Bf4 Qg7 Rf6 Ng8 Bc7 Bd6 Re6 Bf4 Qh5 Qg1 Qg4 Bd6 Bb8 Be7 Bg3 Bd6 Bf4 Rg2 Bh2 Bg3 Bc2 Q3c3 Qg5 Ke2 Bb3 Nb6 Qb5+ Qcd3 Bc2 Nd5 Ba4 Kf3 f1Q+ Rf2 Qh3 Ke2 Qg4+ Kf1 Bd1
1Q2R3/1pr2B2/1b1k2rB/4r1R1/1pB1pKP1/QR5R/B5bP/n2qrQ1N w - - 0 1 legal: proof: g4 a5 e4 g5 b4 h5 f3 d5 exd5 c6 Nc3 Nd7 Nb5 Ndf6 gxh5 g4 Rb1 g3 Ra1 Ng4 fxg4 Nh6 Na7 c5 bxc5 Ng8 Nc6 Rh6 Nb4 axb4 Qe2 Rh7 Qd1 Rh8 Ke2 Kd7 Kf3 e5 c4 f5 a4 f4 d4 g2 c6+ Kd6 c5+ Kc7 d6+ Kb8 d7 Kc7 h6 Bd6 d5 Ra7 a5 Ra8 a6 Nf6 h7 Ra7 Ne2 g1R Ra5 Bf8 d6+ Kb8 c7+ Ka8 c6 Rg8 h8R Bg7 Rh3 Bh8 Ng3 Ne4 Be2 Qf8 d8Q Nc5 d7 Nb3 Qe8 Qg7 d8R Na1 Bc4 Qd7 Ba2 Rg2 Ke4 f3 Bh6 f2 Rg1 f1R Nh1 Rb2 Rgg3 Rc2 Rb3 Rg6 Qe1 Rf7 Qf1 Re7 Qef8 Qd1 Q8f4 Bf6 Re8 Bg7 Qc1 Bh8 Qa3 Bg7 Rd5 Re2+ Kf3 Re1+ Kg3 Rf7 Rc5 Bf6 Ra5 Bd8 Rd5 Bd7 c8B Kb8 c7+ Ka8 Rb5 Bf5 Be6 Be4 c8B Kb8 Bc4 Kc7 B8e6 Bg2 Ra5 e4 Rg5 Rd7 Kf4 Kd6 Bf7 Ra8 a7 Bb6 Rd8 Rc8 a8Q Rc5 Re8 Rdc7 Qb8 Re5
nBK1NN2/p2p1Rn1/P2P1nQ1/1R1Q2Nn/1pq1R2r/Q1QN4/1b5k/b7 w - - 0 1 legal: proof: c4 c5 b4 b5 e4 f5 exf5 Na6 bxc5 b4 Bd3 Rb8 Bf1 Rb5 cxb5 Qb6 Nc3 Qa5 Nb1 Qd8 g4 h5 f4 Qb6 f6 Kd8 g5 Rh7 f5 Bb7 Be2 Kc7 Bf3 Rh8 Bg4 Bd5 g6 Bf7 gxf7 hxg4 Qe2 Qb8 Qd1 Qd8 Kf2 e5 Ke3 g5 Ke4 g3 Kd5 e4 d4 g4 a4 e3 h4 e2 b6+ Kb7 h5 e1B h6 g2 a5 g3 c6+ Kc8 b7+ Kc7 b8R Be7 f8Q Bf2 h7 Bd6 f7 Qe7 f6 Qe8 Bf4 Qe2 Qe8 Qd3 f8N Nc5 f7 Na6 Nc3 Qb1 Nce2 Qc1 Rh4 Qe3 Nf3 g1N Rb5 g2 Ng5 Qe7 Nc1 Qe2 Nd3 Nf3 Qb3 g1N Qa3 Be5 Rf1 Be3 Qe6 Bf2 Qg6 Nh3 Bg3 Qc2 Re4 Nh4 Bh2 Nf5 Nfe6+ Kc8 f8N Ng7 c7 Be1 Rf3 Bc3 Rf7 Bb2 Bf4 Bf6 Kd6 Qc4 d5 Bfd4 Be5 Nf6 Ke7 Nf4 Bd6 Ngh5 Ng7 Ne6 Ne8 Neg7 Be5 Nc5 Bh2 Na4 Be5 Nb6 Bg3 Rg8 h8Q Na8 Qhh7 Rh8 Qg8 Ba1 Bf4 Bdb2 Bd6 Nb6 Bg3 Kb7 Kd8 Rh6 Rc5 Na8 a6+ Kb6 c8Q Rh7 Bb8 Rh8 d6 Rh7 Rd5 Rh6 Bc7+ Kc6 Rb5 Rh8 Nc5 Kd5 Bb8 Rh7 Qc7 Rh6 Kc8 Rh8 Rd4+ Ke5 Qc6 Rh7 Qcf3 Rh6 Qfc3 Rh8 Rd3+ Kf4 Re3 Ng3 Re1 Rh4 Re3 N3h5 Re1 Qe6 Nd3+ Kg3 Re4 Qb3 Qf5 Kg2 Qd5 Kh2 Qh7 Qa2 Qg6 Qc4+
Q1b3QN/K4prB/1R2Q2p/P3rq2/q2N2Qp/q4PN1/2Bn1Bk1/1N4q1 w - - 0 1 legal: proof: d4 a5 b4 d5 bxa5 g5 g4 Ra7 c4 Nd7 cxd5 Ne5 e4 Bg7 a4 Bd7 h4 Nf6 h5 Qb8 d6 Qd8 h6 Ra8 hxg7 Bc8 Rh4 gxh4 g5 Neg4 g6 Nd5 exd5 Nf6 Ra3 Ng8 Rh3 Bf5 Rh1 Bc8 Ke2 Kd7 Ke3 b5 a6 e5 a7 c5 a5 c4 Ne2 e4 Ng3 b4 Qg4+ Ke8 f3 h6 d7+ Ke7 d6+ Kf6 d5 Ke5 Bd3 b3 Bc2 Qe8 d8Q c3 d7 b2 d6 Bb7 Qf6+ Kd5 d8N Qd7 Nc6 Re8 a8Q Re5 Nd4 Qa4 d7 Rh7 d8N Kc5 Rd1 Bc8 Qfe6 Nf6 g8B Rg7 N8c6 Qa3 Bd3 c2 Ne7 Qa4 Bd2 c1Q Bh7 Qc3 Be1 Qcb4 Bc2 Qba3+ Nc3 b1Q Bf2 Qbb5 Rb1 Qd7 Rb6 Qdb5 Kf4 e3 Nb1 e2 Ra6 e1Q Rb6 Rg8 g7 Ne4 Ng6 Qg1 Nh8 Qd7 Bg6 Nd2 Bh7 Re2 Kf5 Re5+ Kf6 Qdb5 Ke7 Qbd3 Qf4 Qf5 Qg4 Rd8 g8Q Rf8 Q8g7 Rg8 Qf8 Rg7 Qg8 Qh2 Kd8 Qg1 Qeg6 Kc4 Kc7 Kc5 Kb8 Kc4 Bd1 Kd3 Ka7 Rc5 Be1 Ke3 Qe6+ Re5 Bc2 Nc4 Bb4 Kf2 Be1+ Kg2 Bf2 Nd2
5B1Q/3p2PB/2nqRQb1/6rp/1nQ2pkB/N2bQ1r1/P3p2K/1N1N1B2 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 h4 Bg7 g4 Nc6 f5 Nb4 Nd2 Nh6 Rb1 Na6 Rb4 Kf7 Rf4 gxf4 g5 Nb8 g6+ Ke8 Qe2 Ng8 Qh5 Bh6 Qd1 Bg5 hxg5 Ra6 Rh4 Ra7 Rh1 Ra8 Kf2 b5 Kg2 e5 c4 h5 a6 b4 c6 e4 f7+ Ke7 f8B+ Ke8 c5 e3 a7 b3 c7 b2 c6 b1B f6 Na6 g7 Kf7 g6+ Ke6 f7 Kf5 Qe1 Bd3 Bca3 Qe8 Nh3 Be2 Kh2 Nb4 Nf2 Qe6 Nd1 Bb7 c8Q Qb3 c7 Bg2 Nb1 Nd3 Bae7 Bc6 Bh4 Rb8 a8Q Ne7 g8B Ba4 Bh7 Nb4 g7+ Kg4 Qca6 Nec6 c8N Qe6 Nb6 Qd6 Nc4 Rb5 Nca3 Rg5 Qc4 Bc2 Qd8 Bg6 Qf6 Bed3 Qec3 Kf3 Rg1 e2 Rg4 Rd5 Rg5 Rc5 Re5 Kg4 Re6 Rg5 Qce5 Rg8 Qe3 Rh8 Be7 Ra8 f8Q Raa5 Qh8 Rab5 Bf8 Rbe5 Qd2 Re3 Qdc1 Rf3 Qe3 Rg3
1rr2B2/1BR2n1N/2n1PR2/pb4Qp/p3QRr1/1p4q1/kP1R2K1/B2Q3B w - - 0 1 illegal: Other
N1r1B3/3Qr3/KP1B2NB/2pR4/npqNb1P1/p1N1b2B/1kp2Q2/1b1Q4 w - - 0 1 illegal: No proof kernel
4q2k/NQRp1Q2/Q6p/4PBq1/R2Qp1P1/R3r1pN/Kbb2r2/2NN1n2 w - - 0 1 illegal: No proof kernel
2R3q1/Bp3R2/6bQ/1r2r3/1pp1P1k1/NP1QKN2/3bbp2/R1R1bQNQ w - - 0 1 legal: proof: g4 f5 f4 g5 c4 e5 fxe5 d5 cxd5 f4 Bg2 a6 Be4 Ra7 Bd3 Ne7 Bc4 Ra8 Bb5+ axb5 h3 Nf5 gxf5 Nd7 h4 g4 Kf1 Nf6 Kf2 Ne4+ Ke1 Ng5 hxg5 Kf7 Nf3 Ke7 Ng1 Ke8 Kf2 Kd7 e4 c5 d4 h5 a4 b4 e6+ Ke7 a5 h4 d6+ Ke8 a6 f3 e7 Kf7 e8R h3 b3 c4 a7 h2 g6+ Kf6 g7 g3+ Ke3 Kg5 g8R+ Bg7 d5 g2 d7 f2 d6 Qa5 d8N Qa2 d7 Qa6 f6 Qa3 f7 Rh5 Qf1 Kg4 f8Q Rb5 Nf7 Qb2 d8Q Bf5 Qd2 Bg6 Rc8 Bc3 Qdd3 Be1 Qh6 Qh8 Rg7 Qg8 Ng5 Re5 N5f3 Rb5 Rf8 Re8 a8Q Ree5 Rc8 Qe8 Nh3 Qg8 Rg1 h1B Na3 Qf8 Rf7 Qd8 Qfe2 Qg8 Rf1 g1B Qa5 Bh2 Nhg1 Rec5 Bb2 Rh5 Bd4 Be5 Ba7 B5c3 Qc7 Rhf5 Qch2 Bg2 Qh1 Rfe5 Nh4+ Bf3 Qed1 Be2 Nhf3 Bb2 Qc1 Bec3 Rd1 Be1 Qcb1 Bbc3 Rc1 Bd1 Qf1 Be2 Qd3 Bcd2+
2K1Q2n/b2Qr3/n6p/P1QRr2P/B1B2r1k/1b4bB/q1R1N1n1/1Rq2QB1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 g5 f4 Qd6 f6 Qd8 f5 Kf7 Nc3 Ke8 Nce2 Nc6 Nf4 gxf4 Qf3 Nb8 Qe2 Bh6 Qd1 Bf8 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 f3 h4 c4 a4 c3 g4 b6 d4 f2 d6 e4 a6 e3 d5 c2 d7 e2 g5 e1B h5 h6 a5 Beb4 d6 Bb7 a7 Qc8 d8R Bc5 d7 Na6 Rb1 Bfd6 Ne2 Bd5 Be3 c1R Rh2 Ne7 Bh3 f1N Bg1 Ne3 Qf1 Re8 Rg2 Rb8 a8B Rc4 Bc6 Bg3 Rh2 Ng2 g6+ Kf8 f7 Kg7 Nc1 Kf6 f8Q+ Kg5 g7 Bd4 g8B Ng6 f6 Nh8 f7 Rb7 Qc5 Kh4 f8Q Re5 Qe8 Bdf2 Ne2 Rf4 Bge6 Bb3 Bc4 Qc7 Rb8 Qc8 d8Q+ Rbe7 Qdd1 Qe6 Rd8 Qd5 Bcd7 Qd2 Kc6 b5 Kb7 b4 Kc8 Qa2 Ba4 Be3 Qcb5 Ba7 Qd2 Bd1 Qbd7 b3 Q2d6 b2 Qc5 Bc2 Qb7 Bb3 Rd5 Ree4 Qbd7 R4e5 Rbd1 b1Q Re1 Qd3 Rb1 Qe3 Nc3 Ne1 Rc2 Qc1 Ne2 Ng2
1r5b/nk1bN1N1/1Npr2n1/nQ2qP2/2P3R1/qQ3br1/K2RQ2Q/1B2N1R1 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 f5 dxe5 h6 g4 Ke7 gxf5 Ke8 Bg5 hxg5 Kd2 a5 Kc3 d5 Kb3 Kd7 c4 c6 f4 Kc7 e4 g4 h4 g5 f6 a4+ Ka2 d4 b4 a3 b6+ Kb7 f7 g3 f5 g4 b5 d3 h5 d2 h6 g2 h7 g3 e6 Ra5 e5 Qh4 e7 Nh6 e8R Be7 f8N Qg4 e6 Qd4 Nf3 g1Q Ng6 g2 Qe2 d1B Rh2 Qd5 Ne1 Qe3 Nc3 g1R Na4 Na6 Rg8 Bf6 e7 Ng4 e8N Nc7 Ng7 Rg3 Ne7 Bd7 Bg2 Bb2 Be4 Ne5 Bb1 Ng6 Rg2 Ra7 Rd8 Rg8 h8Q Qde5 Qh2 Ra8 Rg1 Rb8 Rg2 Rh8 Rg8 Rh6 Rf2 Ka8 b7+ Ka7 b6+ Ka6 Rf8 Nb5 Rg8 Na7 Rg2 Nh4 Rg1 Rd6 Rg2 Ng6 Rd8 Ra8 b8Q Bc3 b7 Qf3 Qc8 Rb8 Nb6 Qd3 Rg8 Qf3 Qe8 Qfe3 Qd3 Bf3 Rd2 Bb2 Rh8 Q3c5 Rh4 Qce3 Rg4 Bc3 Kb3 a2 Qde2 Q3c5 Qeh8 Bb2 Q8h3 Qa3+ Kc2 Qb5 Ne6 Bg2 Nbd5 Nf8 Nd3 Ra8 b8Q Bh8 Ng7 Rf3 Q3g3 Qbc5 Qb4 Bh1 Nb6 Kb7 Qb5 Qe5 Qgh3 Rb8 Q3g3 Qa5 Kb3 Ng6 Bc2 Qa6 Rg1 a1N+ Kb4 Nb3 Bb1 Qa2 Ne1 Na5 Qgh3 Ra3 Qc3 Be4 Qb2 Rg3 Qb3 Qab2 Ka4 Bf3 Kb4 Qbd4 Ka3 Qdc5+ Ka2 Qa3+
5Qr1/1B1nnP1k/N2B1brp/2NQ4/q1B4b/1rqRQNq1/2bQN2P/3K4 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 Kd7 f6 Ke8 b4 Be6 f5 Bd7 Ra3 Be6 Rf3 Bc8 Rf4 gxf4 d4 Kf7 g4 a5 d6 c5 d7 e5 b6 c4 b7 c3 g5 a4 b5 e4 b6 e3 d5 f3 d6 e2 Qd3 c2 Bg2 a3 Nd2 a2 Qe3 a1B Ba3 Qc7 d8Q h6 d7 Be7 Bd6 Nc6 b8N Qa7 b7 Ne5 Na6 Rb8 Nc5 Qa4 Qa5 Bc3 d8Q Nd7 Qa8 Be5 Qda5 Kf8 f7 Kg7 f8Q+ Kh7 f6 Bd8 Qac3 Ne7 Qb4 Rg8 g6+ Kh8 g7+ Kh7 Qaa5 Bd4 Qbb3 c1Q+ Qd1 Qca3 Qdb3 Qb2 Qd5 Qc3 Qb4 Ra8 b8N Ra6 Qa5 Rb6 Nba6 Rb3 Nh3 Bb7 Nf4 Bc6 Rg1 Bb5 Bh1 Bd3 Rg3 Be4 Kf2 e1R Ne2 Rg1 Rh3 Rg5 Ke1 f2+ Kd1 Rg6 Nf3 Bb1 Qb4 Be5 Qbd4 Bg3 Qdd2 f1Q+ Qe1 Qf2 Q1d2 Bh4 Bg2 Qg3 Bh1 Rh8 Bg2 Rg4 g8B+ Kg6 Be6 Kh7 f7 Rg6 Q5d4 Rf6 Ne5 Qf4 Qg3 Ng6 Bc4 Rg8 Bb7 Re6 Qg5 Be7 Re3 Qg3 Nf3 Bd8 Qgd5 Bdg5 Qc6 Ne7 Qcd5 Reg6 Rd3 Bf6 Q4e3 Bc2+
r5n1/B4NbN/1pn2r2/1n1kqQ1N/1P2NQB1/Q1BB3n/b3PnKb/6R1 w - - 0 1 legal: proof: b4 d5 f4 e5 fxe5 a5 c4 h5 cxd5 a4 g4 Rh6 gxh5 Qe7 a3 Qd6 Ra2 Qd8 Rb2 Rh8 Rb3 axb3 a4 Bc5 Nh3 Bd6 Ng1 Bf8 Kf2 Kd7 h4 f5 d4 c5 h6 g5 h7 b2 d6 Ke6 h5 g4 d5+ Kf7 a5 f4 h6 c4 e6+ Kf6 e7 Ke5 e8N c3 a6 f3 d7 c2 a7 Qe7 d8Q Qc7 d6 Qb6+ Qd4+ Ke6 d7 Nf6 Nc3 b1N Be3 c1B Qf4 Nc6 Bh3 Qd4 Ne4 Ng8 Qdf6+ Kd5 d8N Bd6 Nf7 Na3 Q6f5+ Qe5 Ng7 Be6 Nh5 g3+ Kf1 f2 Kg2 f1N Bg4 Bc7 Nh3 Nd2 Rg1 Bb2 Nhg5 Nb5 Bd4 Rf8 a8B Bb8 Ba7 b6 Bb7 Bc7 Ba6 Bd4 Nfd6 Rf6 Ndf7 Bb2 Kh3 g2 Kh2 Nbd4 Bd3 Nb5 Kh3 Nge7 Kh2 Ra8 h8B Ng8 h7 Bb8 Bg7 Bc7 h8Q Bd4 Rd1 g1N Kg2 Nh3 Rg1 Bc3 Qh6 Bd4 Nh7 Bd6 Neg5 Ne4 Qc1 Nef2 Qa3 Bf8 Bh8 Bg7 Ne4 Be3 Qhg5 Bf4 Qh6 Bg3 Qhf4 Bh2 Qa5 Bh6 Qg6 Bf5 Bc2 Qe7 Ned6 Re6 Bc3 Rf6 Qa3 Bg7 Bb1 Bc2 Qgf5+ Qe5 Ne4 Bb3 Bd3 Ba2
8/N1RQp1N1/QR1r1Q2/1K1b1r1P/2r1PQ2/1Bbrq3/1n2nn2/2RRNkr1 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 d4 Kd7 Kd2 Kd6 Kc3 a5 Kc4 c5 e4 f5 h4 g4 b4 f4 b6 g3 b7 f3 h5 g2 b5 a4 b6 f2 Qe1 a3 Qc3 a2 Na3 Nc6 b8R Nb4 b7 Ra6 Nf3 g1N Rd1 a1R Kb5 c4 Ne1 Nf6 g8Q Ne2 g7 Nd3 Qb2 c3 Qe6+ Kc7 g8N c2 Nh6 c1R Nf5 Rd6 Ng7 Ng4 Qf6 Rc4 Qa2 Nb2 Rg1 Ra6 d6+ Kd7 Bh3 f1R d5 Rf5 Rc1 Rg8 Rg3 Nf2 Rgc3 Qe8 Bf1 Qg6 Bh3 Qg3 Bg4 Nf4 Bd1 Qe3 Bb3 Ne2 R3c2 Rd4 Rc6 Rd3 Rb6 Rh8 Ra8 Rh6 b8Q Ra4 Raa6 Rc4 Ra7+ Kd8 d7 Rg6 Qh2 Bb7 Qhh4 Kc7 d8R Rh6 Rd1 Rb1 Rc8+ Kd7 Qf4 Rg6 Ne8 Bg7 Rc5 Bh8 d6 Rh6 Ng7 Rg6 Ra8 Bd5 Rac8 Rg1 Ka6 Rbc1 Nb5 Rcd4 Na7 Rcc4 Ne8 Bg7 Kb5 Bh8 Qa6 Bg7 Qf8 Ke6 R5c7 Bf6 Qh8 Be5 Ng7+ Kf6 Qf3 Kg5 d7 Kh4 Qf4+ Kh3 d8Q Bf6 Qd7 Be5 Nc2 Kg2 Ne1+ Kf1 Qf8 Be6 Qf6 Rd6 Ka5 Bd5 Kb5 Ra4 Rcc1 Rc4 Rc7 Bc3
B1qRn1BB/3nk1rp/r2RN3/2nB3P/2Q2KQ1/6R1/4PR2/rbn1bQ1b w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 d5 fxe5 Bc5 Nc3 Na6 cxd5 Nb8 Ne4 Bb6 Ng3 Bc5 Nh5 Bf8 Nf4 gxf4 Kf2 a5 Kf3 f5 g4 c5 b4 a4 d4 c4 h4 c3 b6 a3 d6 a2 g5 c2 h5 Nc6 g6 Nb8 b5 Ra7 d5 Qd7 e6 Qe7 d7+ Kd8 b7 Bg7 b6 Nf6 Bg2 Ra6 Bb2 c1N Nh3 Rg8 Rh2 Qe8 Ng5 Ke7 d6+ Kf8 d8Q Ra4 d7 Nb3 Qc7 Ra6 Qc4 Nc5 d8Q Bd7 Qc8 Ba4 Qe1 Bc2 Rd1 a1R Rd6 Bb1 Qg1 Qd8 e7+ Ke8 Q8e6 Nbd7 b8R Bh8 b7 Bg7 Kf2 f3 Ke3 f2 Bd5 f1B Rg2 Bh8 Rg3 Bg2 g7 Bh1 Qg2 f4+ Kf3 Nb6 Qg4 Nbd7 Ne6 Kf7 Ra8 Qc7 b8R Qc6 Rb3 Ne8 Rd8 Qc8 Kf2 f3 Ke3 f2 Kf4 f1N Rbf3 Nd2 Rf2 Ndb3 Qf1 Nc1 Ba8 Nf8 Be5 Nc7 e8B+ Ke7 Bg6 Ne8 Bge4 Nfd7 Bed5 Rf8+ Qf5 Rf7 g8B Bg7 Bb2 Bf6 Qg4 Bc3+ Kg5 Be1 Bh8 Rg7+ Kf4 Qb8 Nd4 Qb7 Ne6 Qc8
b2qqR1n/P4Q2/rQBk3N/2r1bQBp/1nn4P/4n2q/Q7/BRB1RK2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 g5 f4 Qd6 f6 Qd8 f5 Kf7 Nc3 Ke8 Nce2 Nc6 Nf4 gxf4 Qf3 Nb8 Qe2 Bh6 Qd1 Bf8 g4 Kd7 h4 c5 d4 b5 a4 e5 g5 h5 d6 c4 a6 c3 g6 c2 f7 f3 a5 b4 d5 e4 f6 b3 a7 b2 g7 b1N a6 e3 Nh3 e2 Nf2 Rh7 Bg2 Qb6 Ng4 Ne7 g8Q Na3 Qd4 Nbc6 Nh6 Bb7 Rb1 Bg7 f8R Nb4 f7 Qd8 Qb6 Ng6 Kf2 e1N Kf1 Rc8 a8Q f2 a7 Bc6 Qab7+ Rc7 Q7a6 Nc4 Qa2 Be5 Rg1 Nh8 Qg6 Qe8 Qf5+ Kd8 d7 Ke7 d8B+ Kd6 Be4 Ng2 Bf6 Rg7 Rh1 Rg3 Rg1 Ra3 Bf3 Ra6 Bg7 Ke7 Rh1 Ba8 d6+ Kd8 d7 Ke7 Bd5 Rc5 Bc6 Kd6 d8B Nf4 Be3 Ng2 Bdg5 Qd8 Re1 c1Q Bd2 Qa3 Bc1 Qe3 B7f6 Bg3 Ba1 Qee8 Rg8 Be5 f8Q+ Qde7 Q8f7 Qc7 Ke2 Qcd8 Rf8 f1Q+ Kd1 Qg1 Ke2 Qh2 Kf1 Qg3 Rh3 Qh2 Rb3 Qh3 Rb1 Nge3+
1R3r2/K1B1Rb2/RBnQqpQ1/b1rB4/P1q2Pn1/6B1/kbR3q1/4b1NQ w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra7 g4 Ra8 gxh5 e6 d4 Rh7 d6 Rh6 Nc3 Rh8 d5 e5 Nb5 Na6 Nd4 exd4 Bb2 Nb8 Ba3 Nf6 Bc1 Ng8 Kd2 Kd7 Kd3 c5 Kc4 g5 Kb5 d3 a4 c4 h4 g4 e4 d2 e5 c3 h6 c2 h7 g3 a6 f6 h5 g2 a7 Nc6 h6 Qe8 Kb6 Qe6 Rh2 Rb8 Ba3 c1B a8R Bb2 Ra6 Be7 Bc4 Bd8+ Kc5 b5 f4 Rb7 Bb4 Rc7 Kb6 Bb7 Rc1 Bc8 Rc2 Bb7 Bc5 b4 Bf2 b3 Rh3 Bc8 Re3 Bb7 Bg3 Ba8 Qh5 d1Q Qg6 Qc1 Re1 Nd4 Re3 Rc5+ Ka7 Ba5 Re4 Bbc3 Ree2 b2 Bb3 b1Q Qd3 Ke8 d7+ Kf7 d8B Qa2 d6 Bb2 d7 Bd5 Bb6 Qf1 d8B Nc6+ Kb7 Bc4 Qd6 Bd5 Re4 Qc4 Bdc7 Be1 Ne2 g1B Ka8 Bgd4 Ng1 Bdc3 Re3 Nd4+ Ka7 Ba5 Ree2 Nf5 Re4 Nge7 Re3 Rc8 h8R Rf8 h7 Nh6 Rg8 Ng4 h8Q Bc6 Qh1 Be8 Rh8 Nc6+ Kb7 Qf1 Bd5 Qac4 Ree2 Qg2 Ka8 Kg6 Rg8+ Kf5 Rh8 Qd7 e6 Bf7+ Kb7 Qe8 e7 Qd7 e8Q Qe6 Rg8 Qe3 Be6+ Ke4 Bd5+ Kd4 Rh8 Qeb3 Re7 Qe3 Rg8 Qe6 Rh8 Bg8 Qg6 Bf7 Rd2+ Kc3 Rc2+ Kb3 Rg8 Rd8 Rh8 Ka2 Rhe8 Rd7 Rb8 Rd8 Ka8 Rf8 Kb7 Nd4 Ka7 Nc6+
4RQ2/2R2N1r/qQ1NNKQn/n2p3P/4R2n/q2PQ1N1/3b1qbr/1B1kn3 w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 gxh5 f5 exf5 Qb6 a4 Na6 Ba3 Qd8 axb5 Rb8 b6 Ra8 b5 Nb8 Bb4 cxb4 h6 Kf7 Ke2 Kf6 Kd3 Ke5 f4+ Kd5 c4+ Kc5 Ke4 d5+ Ke5 a5 h4 g5 b7 a4 h7 e6 b6 a3 h5 g4 f6 b3 f7 Kb4 c5 b2 f5 g3 c6 a2 c7 g2 f6 Ne7 Qg4+ Kb3 Qg6 Bh6 f8N Ng8 f7 Qh4 Na3 b1Q Nb5 Qd3 Nd6 Kc2 Ne2 g1N Re1 Bg5 Bh3 Nh6 Bf5 Qh2+ Ng3 Qg2 Re3 Kd1 Rh4 a1Q+ Rd4 Ra2 Be4 Bd7 c8R Qa6 Bb1 Qgf1 d3 Rh2 Re8 Q1a3 Rc4 Qf2 Rc7 Bf4+ Kf6 e5 Re2 Bh3 Ne6 e4 f8Q Bg2 Re3 Nc6 Re2 Rg8 h8N e3 b8Q Rg7 b7 Nf3 Qa7 Na5 b8Q Nh4 Nhf7 Rh7 Qd4 Qa7 Qbb6 Qa6 Rb2 e2 Rb4 e1N Qdc5 Qf1 Re4 Bd2+ Qf2 Qg1 Qfe3 Qf2+
B2Q4/n1p1K1Q1/2b1r1Q1/2PRnrq1/qR2b1BB/Q1R5/b5P1/1BN1bkn1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 h4 Qd8 hxg5 f5 e4 Bd6 e6 Ne7 e5 Ng8 Nd2 Bf8 Ne4 fxe4 Ke2 Ke7 Ke3 b5 Kd4 h5 Kd5 e3 f4 e2 c4 e1N a4 b4 g6 h4 g7 h3 f5 h2 a6 b3 a5 b2 a7 b1B a6 Rh5 Ne2 Ba2 Rb1 Nh6 g8Q Nf7 Qg7 Nc6 Rb5 Rb8 a8R Rb6 a7 Nf3 Rb8 Bb7 a8B d6 Rc5 Na7+ Rc6 Qd7 Qd3 Ra6 Qa3 Rg5 Rg1 h1Q Bb2 Rb6 Nc1 Qh4 Be2 Qf4 Rd1 Ng1 Bd3 Qe3 Bb1 Qc5+ Ke4 d5+ Kf4 d4 Bc3 d3 Be1 d2 Bh4 Ba6 Rb7 Bb5 f6+ Ke8 e7 Ra6 Re1 d1B Rd6 Qdc6 Re3 Bf3 Qg6 Bh6 Rc3 Be4 Qg7 Q5d5 c5 Rh5+ Kg4 Bd2 Rd7 Ba4 Rb4 Be1 Rd6 Qd2 Rd5 Qe3 Qg6 Rf5 Qg7 Rf1 Kh5 Rf5+ Kg6 Qb5 Rcc4 Rd6 Rc3 Kd7 e8B+ Ke6 Rdd4 Qf4 Rd5 Qa5 Bb5 Qa6 Be2 Bc6 Bd1 Qa4 Bf3 Nh6 f7 Ng4 f8Q Qe3 Qd8 Qf4 Rd1 Qd2 Be2 Kd5+ e6 Ne5+ Kh7 Qc2 Kg8 Qb3 e7 Qa4 Qc8 Rh6 e8Q Re6 Qeg6 Ref6 Bbd3 Qg5 Bg4 Nc4 Rd2 Kd4 Qd8+ Ke3 Rd1 Bg3 Bb1+ Kf2 Rdd3 Kf1 Rd6 Ne5+ Rd5 Nf7 Kf8 Ne5+ Ke7 Bf2 Q6h6 Be1 Qhg6 Re6+
1nbKn1BB/Q5p1/br2rn1Q/7N/k1NbQR2/1n2P1P1/q4BBQ/1b1N4 w - - 0 1 legal: proof: b4 e5 d4 c5 dxc5 b5 a4 h5 axb5 h4 f4 h3 fxe5 Na6 g3 Nb8 Ra6 Bb7 Rf6 Ba6 Rf2 Bc8 Rg2 hxg2 Kf2 a5 Ke3 f5 Kf4 d5 c4 Kd7 h4 d4 e6+ Kc7 Ke5 a4 e7 a3 e8Q a2 c6 Kb6 c7 a1N h5 f4 c5+ Kb7 h6 f3 b6 Ka6 b7 f2 b5+ Ka5 c6 d3 h7 d2 b6 Ra7 Nc3 Nb3 Rh4 Nc5 Qc2 d1B Be3 Ne4 Rf4 Be6 c8B Bg4 c7 Bb4 Nh3 g1N Bg2 f1B Be6 Ng5 c8N Ra8 Nd6 Nf6 Bg8 Nge4 Bf2 Bc8 e3 Bc5 Nc4+ Kb4 Qh5 Ra6 Qh6 Nd6 Qe4 Bc2 Nd1 Bb1 Bf3 Nfe8 Bg2 Ka4 Kd5 Nf6+ Ke5 Nfd7+ Ke6 Ne8 Kf7 Ne2 Ke6 Nc6 b8Q Nc1 b7 Nb3 Qa7 Bd4 b8Q Qa5 Qba8 Ncb8+ Ke7 Rb6 Kd8 Ndf6 Qad5 Bfd3 Qdh5 Nc1 Bd5 Rg8 h8B Nb3 Qe2 Rf8 Bg8 Rf7 Qeh5 Re7 Rg4 Nc7 Nf4 Kb4 Nd6 Bda6 Qh2 Nce8 Nc4 Qa2 Nh5 Ree6 Rf4 Ka4
3QRqk1/b2r1n2/bB1rNQ2/PB2pn2/1p2PbrN/2n5/4B2Q/4KNNB w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h5 a4 Bg7 g6 Rh7 g5 Bf8 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 d4 e5 h4 b5 d6 f5 a6 c5 d7+ Ke7 a7 c4 a5 b4 h5 f4 d5 c3 g7 Kf7 d6 f3 g6+ Ke6 h6 g3 h7 g2 Be3 c2 Nd2 c1B Bb6 Qe7 d8Q Nc6 d7 Ba6 Qc2 Nf6 g8N Ne4 g7 Nc3 Nh6 Rb8 a8B Rb7 Nf5 Kf7 e3 Qf6 Rh6 Bc5 Nh4 Qe7 Be2 Qf8 g8B+ Kg7 Qe8 Nd8 Nf1 Nf7 d8N Rd7 Re6 Rd6 Qc6 Bd4 Re8 Bc5 Nh3 g1R Qd1 Rg4 Ng1 Nh6 Be6 Nf7 Bd7 Rg8 Qc2 Kh8 Qc8 R8g7 Ne6 Bd4 Bdb5 Bc5 Nh2 Bd4 Qd8 f2+ Kf1 Bd2 Bh1 Bc1 e4 Bf4 Qf6 Bc5 Bd8 Ba7 Bb6 Na4 Qc8 Nc3 Qcd8 Bg3 Kg2 f1N Kf3 Bf4 Kf2 Ne3 Nf1 Nf5 Ke1 Rg3 Qg5 Rgd3 Qg2 Rg4 Qh2 Ng5 Nc7 Kg7 h8Q+ Kf7 Qh6 Kg8 Ne6 Nf7 Qhf6 R3d5 Kf2 Rd7 Ke1 R5d6
1n2q3/p1r1P1Rb/3BQQ1Q/R2r4/P2B3R/1b1Q3R/kN1bp1B1/n3Kn1r w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Bf8 gxh5 f5 e4 Ne7 e6 Ng8 e5 Ne7 Nd2 Ng8 Ne4 fxe4 c4 Ke7 h4 b5 f4 g5 c6 d5 h6 g4 h5 g3 c7 d4 f5 d3 f6+ Ke8 e7 Kd7 e8R Kc6 h7 Kc5 f7 Kb4 c5 g2 e6 e3 c6 e2 e7 Bd7 c8Q Nh6 c7 Be6 Qa6 Bb3 c8Q Nf5 h6 Ne3 Nh3 g1R Qf6 Rg5 Nf2 Rd5 Bg2 Nf1 Bf4 Ka3 Rh3 b4 Bd6 Bg7 Rf8 Qe8 Rg8 Bf8 Qb1 Bg7 Nd1 d2+ Kf2 Bf8 Nb2 d1N+ Ke1 Nde3 Qd3 Bg7 f8Q Nc2+ Kf2 Qg6 Qce6 Qe8 Qh4 Bf6 Rg7 Bc3 Qhf6 Bd2 Rh4 Nd7 Rh3 Rc8 Rh4 Rc7 Rh3 Rg8 h8R Nb8 h7 Rg5 Rf7 Rd5 Q8h6 Rg3 Rh4 Rh3 Rg7 Rh2 Rhg8 Rh3 h8B Rh1 Rg3 Rc4 Rgh3 Rc7 Rc1 Na1 Rg7 Qg6 Rc5 Qe8 Na4 Qf7 Ra5 Qe8 Nc3+ Kb2 a4 Ka3 Nd1 Ka2 Qb5 Bc2 Qd3 b3 Qde3 b2 Qd3 b1B Nb2 Bf4 Ke1 Bb3 Rg6 B1c2 Rg7 Bd2+ Kf2 Qh5 Qfg5 Rh2 Qde4 Kb1 Rh7 Bd3 Bd4 Rh1 Rg7 Qg6 Qgf6 Qe8 Qee3 Bg6 Q3e4+ Ka2 Qd3 Bg5 Ke1 Bh7 Ba3 Bf4 Bd6 Bd2+
2B1k1rB/P2N3b/1n2Bbp1/1q2QQb1/B1r2pP1/N2R2Nq/2Q1qQ2/4n2K w - - 0 1 illegal: No possible last move, all moves rejected
b1n1QbQ1/2q2Nnp/1B6/B3Pk1B/N1Q1pn1K/RN4rr/3qP3/1Nb1B3 w - - 0 1 illegal: No possible last move, all moves rejected
KN3qB1/B5Q1/p2knr1N/Bb3B1Q/P1P2b2/2rnQ3/1p1b3R/NqQ1r3 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 Qe7 Qd2 Qf6 Qd1 Qd8 a4 h5 g4 Qb6 g6 Rh7 g5 Rh8 Ra3 Qf6 Rg3 Qd8 Rg4 hxg4 Kf2 Ke7 Ke3 b5 Ke4 f5+ Kd5 g3 e4 f4 h4 g2 c4 f3 g7 f2 h5 b4 e6 d6 c6 b3 g6 a6 h6 b2 c7 Qe8 e5 Nd7 Kc6 d5 h7 d4 Nd2 d3 Ngf3 g1B Rh2 Ra7 Bh3 f1Q Nb3 d2 Bf5 Bc5 Na1 Bf2 Nd4 Nh6 g8B Qe1 g7 Nf6+ Kb6 Bd7 c8Q Be3 Qc7 Ra8 Kb7 Nf7 Qh5 d1R Bd2 Ne4 Ba5 Qd8 Nc6+ Ke8 e7 Nf2 Qg5 Bf4 Nb8 Bb5 Qg1 Nd3 Qe3 Rb1 Qc1 Ng5 Qd1 Ra7+ Kb6 Qd7 Bge6 Bd2 g8N Rc1 Be4 Qd5 Nh6 Rg8 h8B Rg7 Bg8 Qf1 Qh5+ Qdf7 Bf5 Rc3 Qb7 Qd1 Qh1 Qc2 Qc1 Rg6+ Bf6 Bc6 Bh8 Rc7 Bf6 Rc8 Ka7 Bb5 Ka8 Qb1 Bg7 Rcc6 Bh8 Rge6 Bf6 Ne4 Bg5 Bg7 Be3 Ng5 Ba7 Rcd6 Nc6 Kd7 Nb8+ Kc8 Qg6 Qf8 Qf6 Rb6 e8Q+ Kc7 Qh5 Re8 e6 Re7 Qfg6 Be5 Qf6 Re8 e7 Bef4 Bb4 Re6 Ba5+ Kd6 Qh8 Rf6 Qg7 Rc8 e8Q Rc7 Rg2 Re7 Rh2 Re1 Qe3 Ne6
qk2n3/3R1N1b/p3N1QK/3QNRp1/P3B2b/1rP1b2Q/4R1r1/rR2n1Qq w - - 0 1 legal: proof: d4 c5 b4 f5 bxc5 e5 dxe5 h6 g4 Nf6 gxf5 Ng8 Bg5 hxg5 Kd2 d5 Ke3 Kd7 h4 Kc7 f4 b5 a4 g6 f6 a6 h5 g4 f7 g3 c6 b4 e6 g2 c3 b3 h6 b2 f5 d4+ Kf4 d3 e4 d2 e7 Bd7 Kg5 Be8 f6 Qd3 e5 Qd6 e6 Qa3 h7 Nd7 Nf3 g1B Bg2 Ba7 Nd4 Kc8 c7 Nb6 Be4 Qb4 Qg1 d1Q Nd2 b1R Nc4 Rb8 Ne5 Rb2 Rb1 Nc4 Rh5 Bg7 f8R Qb7 f7 Nf6 Rh2 Rd2 Re2 Nb2 Rg8 Qe1 f8R Qa8 Rf7 Bf8 Rgg7 Nd3 Kh6 Rg8 h8N Rd1 Kg5 Bc6 Kh6 Ne8 Rf5 Rb3 Nhf7 Rc1 Qg2 Kb7 Qg1 Bc5 c8Q+ Ka7 Ndf3 Be3+ N3g5 Qd1 Qd7+ Kb8 Qd5 Bb7 Ra2 Ne1 Re2 Nc7 e8Q+ Bc8 Bh1 Be7 Qed7 Ne8 Be4 Bd8 e7 Bb7 Rbb2 Ra1 Rb1 Bc6 Rf6 Bb5 Qh3 Bd3 Rf5 Bc2 Rh2 Qf3 Re2 Qh1 Rh7 Nf6 e8Q Rg7 Qec6 Ne8 Rf4 Rg8 Ne6 Bh4 Rg7 g5 Rf5 Rf8 Nh8 Rf7 Rh7 Rfb7 Rd7 Rb2 Nhf7 R7b3 Nf8 Rba2 Qg6 Bd3 Rh2 Rg2 Ne6 Rg3 Rhf2 Rg2 Re2 Rh2 Qg7 Rg2 Rf3 Rb2 Bh7 Bf5 Bg6 Bg4 Be4 Rb3 Qf6 Bh5 Rf5 Bg6 Qg7 Bh7 Qf6 Bf4 Qg6 Be3
Q1N3n1/6k1/2KB4/1b1r1n1p/NBQbqN1R/p2q4/PqQr2nP/N2B2Q1 w - - 0 2 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 Ke7 e4 Kf7 exf5 Ke8 f4 g5 f6 Bh6 f5 Bf8 Nd2 Kf7 Rb1 Ke8 Rb4 Ne7 Rg4 Ng8 Rf4 gxf4 Ke2 Kf7 Kd3 h5 Kd4 b5 Kd5 a5 c4 d6 g4 f3 c6 a4 g5 f2 c5 a3 e6+ Ke8 e7 Kf7 g6+ Ke8 g7 Kf7 c7 b4 c6 b3 Qc2 b2 Ne2 b1N Nc3 Ba6 c8Q Qb6 c7 Ra7 Be2 f1Q Na4 Qb2 Nb3 Qe1 Na1 Nc6 Bd1 Nd4 Rg1 Nd2 Rg4 N2f3 Bd2 Nh4 Bb4 Ng2 Rh4 Rh6 e8N Rg6 Qa8 Rg5 c8N Rd7 Nc7 Qe8 Ne6 Rd8 Ke4 d5+ Ke5 Qc6 Nf4 Bc5 Qc4 Rg3 Qc2 Rd3 Qa7+ Rd7 Qc7 Bb6 Bd6 Qa8 Q7c4 Rd2 Bb4 Rc7 Kd6 Rc5 Ne7 Qe8 Nc8 Qe4 Kd7 Ne6 Kd6 d4 Kd7 Rd5+ Kc6 d3 Bd6 Bd4 Bb4 Ke8 f7+ Kd8 f8B Ke8 f6 Kf7 Bbd6 Rg5+ Kd7 Ne1 Q2c3 Qf3 Bde7 Rdg2 Bb3 d2 Bb4 d1Q Ne2 Nh6 Bfd6 Qdd3 Bd1 Kg6 g8Q+ Ng7 f7 Rf2 f8Q Rd5 Kc6 Qfe4 Na7 Rg2 Qa8 Kf6 Q3b3 Ngf5 Qg3 Ng8 Nf4 Rd2 Qg1 Ng2 Nc8 Kg7 Qbc2 Bb5+
5NQ1/4B1p1/1r1QK1n1/r1bB1nQ1/2B3P1/2kNB1pr/1bP5/qb1RqN1Q w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 e4 f5 exf5 c4 g4 c3 Ra3 h4 dxc3 Bb7 c4 Bc8 Rg3 hxg3 c5 Ba6 Be2 Bb7 Bf1 Bc8 Ke2 Kf7 Kf3 Kf6 Kf4 d5 h4 a5 c6 e6 h5 d4 h6 a4 b6 d3 b7 a3 c7 a2 h7 a1Q b5 d2 b6 Qc3 Nh3 Nd7 b8Q Ra7 b7 Ke7 f6+ Kd6 f7 e5+ Kf5 Kd5 f4 Kd4 Nf2 Bd6 f8B e4 Be7 e3 Qe2 d1R Nd2 Ra4 Qb5 e2 Qa8 e1B b8Q Bb7 c8B Qda5 Ke6 Nh6 Qg5 Bc5 Qa6 Ba8 Bb7 Ne5 Qg8 Qa1 Bb5 Qb4 Nd3 Ra5 B7c6 Bf2 Re1 Be3 Nf1 Bf2 Bd2 Rb1 Rd1 Be3 Bc1 Qe1 Be4 Bd2 Qd6+ Kc3 Bh1 Bc6 Ba6 Ba4 Bc4 Rb6 Bhd5 Bde3 f5 Ng6 f6 Bb3 f7 Ba2 f8N Nf5 Bc6 Ba3 B6d5 Bec5+ Be3 Bb2 Qf7 Rg8 h8Q Bb1 Qh1 Rh8 Qg8 Rh3
3b4/2nb2Qn/1p3pB1/b2B2kN/Rn2Qr2/4q2Q/PPr2NBq/1NK1BQ2 w - - 0 1 illegal: No proof kernel
1Q6/1Nr2bpN/2P1nNP1/2b2Q2/r1p4R/RQ1BbR1K/4Q3/nq1n1Nkb w - - 0 1 illegal: No proof kernel
b1n4B/q3b1QN/n4N2/2QBp3/r1p1PB2/1Pk2NrK/6nN/1RBn1bQ1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 g4 h5 Ra4 Be6 fxg5 Qd6 g6 Qd8 g5 Bc8 Rg4 hxg4 Kf2 Kd7 Kg3 Kd6 e4 Kc5 d4+ Kb4 h4 a5 d6 f5 h5 c5 d7 a4 g7 a3 g6 a2 b3 a1N b6 e6 h6 Qe7 d8N Nc6 d5 Qd7 b7 Nc2 b8B Ne3 h7 Ng2 d6 Ra4 Nf7 Qa7 d7 Nge7 g8N Bb7 d8Q Nc8 g7 Be7 Q8d6 Ba8 Nd2 Kc3 Ndf3 Nb4 N7g5 Na6 Nf6 Rg8 h8B f4+ Kh2 g3+ Kh3 c4 Nh2 f3 Qc5 f2 N1f3 Bb7 Ngh7 Ba8 Bbf4 e5 Be2 f1B Qd7 Rf8 g8Q Rf7 Qdg4 Rg7 Qg5 Rg6 Qg7 Ne1+ Kh4 g2 Bb2+ Kc2 Nd2 g1N Bg4 Bh3 Be6 Ne2 Ndf3 Nc3 Bd5 Bg2 Rf1 Bh3 Qgg1 Rg3 Rf2+ Kd3 Rc2 Bg2 Bbc1 Nd1 Rb2 Bf1 Rb1 Kc2 Qd6 Kc3 Qdc5 Rg2 Kh3 Rg6+ Kh4 Ng2+ Kh3 Rg3+
7N/K1p3QP/2rbqBp1/1b2B1rQ/6Br/1BNnnR1Q/1bPk1N1N/6b1 w - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 f5 gxf5 h5 b4 Ne7 a4 Nbc6 axb5 Nb8 Ra3 Ng8 Rg3 Qe7 Rg6 Qd8 Rg4 hxg4 Kd2 Ke7 Kd3 a5 Kc4 a4 e4 a3 f4 g3 h4 d6 e6 Kf6 h5 a2 b6 a1B Kb5 g2 h6 d5 b7 d4 e5+ Ke7 h7 d3 f6+ Ke8 e7 Kd7 e8N Ke6 f5+ Kd5 e6 Kd4 f7 d2 f6 Ke3 e7 Bg4 Nh3 g1B Bb2 Nc6 b8Q Bc8 Bc4 Be6 Qh5 d1R Qc8 Bd7 Be5 Bd4 Nf2 Rd3 Bb3 Bf5 Nc3 Ra2 Rh3+ Kd2 Rf3 Be4 Qch3 Rb2 Ka6 Ke1 b5 Bf5 b6 Qd5 b7 Kd2 b8B Bd7 Ba7 Nh6 Bb6 Nb4+ Ka7 Qe6 Bc5 Be3 Bcd4 Ba4 Nd6 g6 e8B Bb5 Bd7 Nf5 Bc8 Bg7 f8N Bf4 f7 Ne3 Nd7 Re8 f8Q Re7 Nf6 Re8 Bc5 Rd4 N6g4 Nd3 Nh2 Rd8 Nf7 R8d6 Qe7 Rc6 Nh8 Rd5 Bf6 Bd6 Bcd4 Rg5 Bde5 Rb1 Ba4 Rb4 Bb3 Rh4 Qd7 Bgf8 Qg7 Ba3 Bd7 Bb2 Bc8 Bd6 Bd7 Qf7 Bg4 Qe6
2R2r1k/1pK5/N2nQb1B/pb3R1Q/1RbBq1P1/Qr1r4/BP1rQ3/1n5B w - - 0 1 illegal: No proof kernel
b4B1n/2bK1qbk/p3pR2/Q2RP1BB/P3q1R1/2nn1QQq/3B1R2/2r4N w - - 0 1 legal: proof: d4 f5 g4 c5 gxf5 Qc7 b4 Nc6 bxc5 Nb8 c6 Qd8 c4 b5 c5 h6 c7 Nc6 Nd2 Nf6 Ne4 Ng8 Ng5 hxg5 Bg2 g4 Bf1 Rb8 d5 Rb6 Be3 Nb8 Bc1 Rc6 dxc6 Bb7 Rb1 Ba6 Ra1 Bc8 Kd2 Kf7 Kd3 d5 Kd4 g5 Ke5 Kg7 a4 d4 h4 b4 e4 a6 f4 d3 f6+ Kg6 f5+ Kh6 h5 e6 f7 g3 f6 g2 Be2 d2 Nh3 g1N Nf2 g4 Rh2 b3 Nh1 g3 Rf2 Be7 f8R g2 f7 Bb7 c8R b2 c7 b1Q c6 Qd7 Rcd8 Qdd3 c8Q Qe3 c7 Kh7 h6 Bf6+ Kd6 Nd7 e5 Nc5 Bh5 Nd3 Qf3 d1Q Kd7 Ne7 Bd2 Ng6 Rg8 Ne2 f8B g1B Ra2 Ngf4 Rg4 Ba8 Qb8 Qdb3 c8Q Qe4 Qb6 Bg7 Qc3 Qf1 Qba5 Ng6 Ra1 Qh3 Raf1 Qd1 Qa3 Nc3 Qg3 Rg8 Rf6 Bc5 R1f2 Qdf3 Qb3 Qff4 Qd1 Bb6 Qdf3 Kh8 h7 Bc7 Ke8 Qff5 Rd5 Qff4 Kd7 Qff5 Ba3 Rb8 Be7 Rb1 Bc5 Rc1 Bce3 Bh6 Bg5 Kg7 h8B+ Kh7 Bg7 Nh8 Bf8 Bg7 Rh2 Qg6 Rf2 Qf7+
3K2kb/N1BN2Bn/1p1N1P1p/Qn1R2QP/2B3Bb/qQ1p4/2N2nr1/1br5 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 f4 b6 f3 gxf3 Qe7 f4 Qh4 f5 Qd8 b4 Bb7 b5 Bd6 Ra6 Bd5 b7 Bf8 Rb6 Na6 b8B Bg2 Rg6 Be4 b6 Bb7 Rc6 Bc8 b7 Nc5 Rg6 Na6 Rb6 cxb6 Kd2 Kf7 Kd3 d5 Kd4 g5 c4 g4 f4 h6 h4 g3 e4 g2 e6+ Kg7 Ke5 d4 h5 Ne7 c5 Kg8 Kf6 Qd5 c6 Qa2 e5 Rh7 c7 Nc6 e7 Nab4 e8B a5 e6 a4 e7 a3 Qb3+ Be6 c8N Qa1 Nf3 g1N Bb2 a2 Na3 Ne5 Bc7 Ne2 b8Q Nc4 Bd7 Bd5 e8N Nc1 Nc2 Ra6 Na7 Bd6 Qa8 Na3 Ne5 Nb5 Bc4 Ncd3 Rd1 Nf2 Bc8 Rg7 Nd7 Bc5 Nd6 Rg2 Ke7 Be6 f6 Nd5+ Kd8 Bf5 Bc3 Qb2 Rd3 a1B Rd1 Bh7 f5 Qa3 Rd3 Bb4 Bb2 Be1 f7+ Kg7 Rd2 Nf6 Rd1 Bg6 f8Q+ Kh7 Qe8 Kg7 Bc3 Nh7 Qe3 Ra4 Qg5 Rb4 Qa2 Rb1 Qb3 Rc1 Qd5 Nh3 Qc5 Bh4 Qcb4 Nf2 Qa5 Rg4 Re1 Kh8 Re5 Rg2 Rd5 Kg8 Bb2 d3 Bg7 Bb2 Bf8 Bh8 Bg7 Bf7 f6 Be6 Nf8 Bh3 Bf5 Bg4 Nd7 Bd1 Ne3 Bc2 Bg4 Bb1 Nc2 Rd1 Nc5 Rdg1 Nd7 Rc1
8/k1K4Q/2p2Qn1/1BR1B3/P3BQp1/1NPbrqp1/Nb2NBn1/2rNr2n w - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 f5 gxf5 h5 b4 Ne7 bxa5 Ng8 a4 Bc5 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kd2 g5 Kc3 b5 Kd4 d5 f4 Kd7 h4 Kc6 e4 Kb7 c3 b4 h5 b3 h6 g3 h7 b2 f6 g4 e6 Ra6 Ke5 d4 f5 d3 e7 d2 e8N Rd6 f7 Rc6 f6 Ka7 a6 Rc4 Ng7 Rc6 Ne2 Ka8 a7 Qd3 Nf5 Bg7 f8Q Bb7 Ne3 Qa6 Rh5 Bc8 Qc2 d1N Nd2 b1R Nb3 Kb7 a8B+ Ka7 Bb7 Nb2 Nd1 Bh6 f7 Qd3 Be3+ Rb6 Qd6 Rc1 f8Q Ne7 Qf4 Na6 Qdf6 Bf5 Bf2 Re8 h8B Nc5 Bd5 c6 Kd6 Rb4 e5 Ng6 e6 Nc4+ Kc7 Qf3 e7 Bd3 Be4 Ne3 Qb1 Rd4 Rd5 Ng2 Bg7 Nd7 Rc5 Nde5 Bh8 Bc4 Qc2 Rd3 Qb1 Re3 Qd3 Rf8 e8N Ba6 Qd7 Nd3 Qh7 Bb5 Kd6+ Rf7 Nc7 Re7 Nd5 Ba6 Nb4 Bc4 Be1 Nf2 Na2 Nh1 Bf2 Bd3 Bg7 Re5 Kc7 Bg5 Qf7 Re8 Be5 Be7 Q7f6 Bf8 Rc4 Ba3 Rc5 Bb2 Ng1 Bc2 Bb5 Bd3 Ne2 Rb1 Nec1 Re2 Bf5 Re1 Bed4 Ra1 Ne2 Re4 Be5 Re3 Be4 Rc1
3bk2n/1B4q1/pQn3pN/1r2P1PK/2bp1NQB/1r1B4/BR3NQ1/3qrQ2 w - - 0 1 illegal: No possible last move, all moves rejected
3r1N2/3B1n2/3k1N2/2b2n1p/QN1pRR1q/Pr1Qp1R1/2qRb1QP/K2n3Q w - - 0 1 legal: proof: e4 a5 d4 f5 f4 c5 dxc5 g5 b4 Bg7 bxa5 Bf8 exf5 Bh6 f6 Bg7 f5 Bf8 Bf4 gxf4 Kd2 b5 Kc1 d5 Kb2 Kd7 g4 h5 c4 e5 a6 e4 c6+ Kc7 a7 f3 c5 b4 a3 d4 f7 e3 f6 f2 g5 b3 g6 Bg7 f8R Nd7 f7 Nh6 Qd3 Ne5 Nc3 Qh4 Bh3 f1Q Ra2 Qff4 Nge2 Nf5 Ka1 Qe7 Ng3 Qd7 Rd2 Qd8 Rg1 Qd6 Nge4 Rb8 a8Q Qh4 Qa4 Ne7 Na2 Bb7 Bd7 Rc8 Nb4 Bh6 g7 Qd5 g8Q Qc4 Re8 Bf8 Nf6 Qc2 Qg4 Rg8 Qd1 Ba8 Rf1 Rg1 Rf4 Rd8 Qb1 Bg7 Rg8 Bf8 Rg3 Nf5 Qbf1 Be7 f8N Nf7 Qc1 Rf1 Qd1 Rf3 Qh1 b2+ Ka2 b1N+ Ka1 Kb8 c7+ Kb7 Be6 Nc3 c6+ Kb6 Bc8 Kc5 Be6 Ng7 c8Q Rf1+ Rd1 Re1 c7 Bf3 Qca8 Be2 Qag2 Nf5 Bc8 Kd6 Be6 Ke5 Bc8 Bc5 Be6 Rb8 c8R Kd6 Re8 Rd8 Bd7 Rg1 Ree4 Re1 Rc1 Rd1 Qc4 Rd3 Rd1 Nh8 Qcb5 Nf7 Rd2 Nd1 Qc4 Rc3 Qd3 Rb3
1qQB1K1N/3Bn1Rr/2p1rnp1/B1Q1b3/p2rk3/4q1Qr/PR1RR1P1/6Q1 w - - 0 1 illegal: No extended proof kernel
2nnRQb1/1pq1pPR1/1P1rk3/pB3R2/1b2K1NN/3RQ2p/3N3r/r2NQ3 w - - 0 1 illegal: No proof kernel
3rNK1n/3prQ2/NNqP1pr1/4B3/1Bp4B/5n1Q/kb3PpR/r1QB1N2 w - - 0 1 legal: proof: g4 e5 b4 h5 gxh5 b5 a4 Qf6 d4 Nh6 c4 Bd6 axb5 Qe6 b6 Qg4 d5 Qg6 c5 Qe4 Ra4 Bf8 c6 Ng8 b5 Bb7 cxb7 Qh4 Rg4 Qd8 Rd4 exd4 Kd2 Ke7 Kd3 Kd6 Kc4 a5 e4 c5 h4 g5 e5+ Ke7 h6 a4 h5 g4 h7 g3 e6 Kd6 e7 d3 e8N+ Ke5 h6 g2 Bd2 a3 Be2 a2 Bb4 a1R Nh3 d2 Qc1 d1R Rh2 f6 Nd2 R8a3 Nf4 Qe7 Nf1 Re1 Bd1 Nc6 b8N Qe6 b7 Rg3 b6 Rh3 Na6 Rh5 b8B+ Ke4 b7 Nge7 Be5 Qd6 b8B Rg5 Kb5 Rhg8 h8Q c4 h7 Ng6 Qg7 Nh8 Qf7 R5g6 Kb6 Qe6 Kc7 Nd4 Kd8 Qc6 Bbc7 Bh6 Ke7 Nf3 Bcd6 R8g7 Kf8 Re3 Ne2 Kd3 Nc3 Re1 Bg3 Re7 Na4 Be3 Nb6 Bd4 Bh4 Bb2 Bdg3 Kd4 d6 Kd3 Qg5 Kd4 Be5+ Kd3 Be2+ Kc2 Qc1+ Kb3 Bd1+ Ka2 Qd5 Nf7 h8Q Rh7 Qe6 Rhg7 Qg8 Nh8 Qgf7 Rh7 Qh3 Rh5 Bd4 Ra5 Be5 Ra3 Nac7 Ra8 Na6 Rd8
B1RB3q/1N2Nn1r/1P3N2/4R3/1bnrR2B/n1rBq3/k2NK2P/1n5N w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 e4 d5 exf5 d4 a4 d3 a6 b4 cxd3 Nf6 d4 Be6 d5 Bd7 Qb3 Bb5 axb5 Ng8 b6 Kf7 Qe3 Ke8 Qe6 Nh6 Qg8 Nxg8 d4 Kf7 f4 c5 a7 e5 h6 g5 h7 b3 d6 e4 d5 b2 f6 e3 f5 c4 d7 e2 d6 c3 Ra5 g4 Nd2 b1N Re5 c2 Nh3 g3 Nf2 Qe8 d8B g2 d7 g1Q Ba3 Qg5 Bae7 Qe3 Rg1 Nh6 Nh1 Nc6 Rg4 Rc8 a8B Na5 Rb4 Rc3 Rbe4 Qg5 Kf2 e1N Bd3 c1R Kf1 Nc4 Ke2 Rg8 h8R Rg7 Rg8 Rh7 Bc7 Qc8 d8N+ Ke8 f7+ Kd7 f6 Rh8 Nb3 Qb8 Bc2 Rd1 Nb7 Rd4 Bd3 Rh7 Nd2 Nc2 Rh8 N2a3 Rg8 Bg7 f8N+ Kc6 Nd7 Bf8 f7 Qc8 Bf6 Bb4 f8N Nf7 Ng6 Qg3 Bh4 Qe3+ Kf1 Qf8 Nf6 Qg7 Rc8 Qh8 Nc5+ Kb5 Bd8 Ka5 Ne7 Kb5 Nb7+ Ka4 Nf3 Kb3 Nd2+ Ka2 Nfd5 Qg3 Ke2 Qg1 Nf6 Qe3+
3n2R1/1P2bK1n/B1qbR2r/1B1Nr1R1/4k1PN/1N3b1N/4qnRR/B5q1 w - - 0 1 illegal: No possible last move
nRb4R/3R4/2K1PB2/2nQq2P/q3B3/1R5B/1bBq2q1/krB1BnnN w - - 0 1 legal: proof: f4 b5 d4 c5 dxc5 f5 a4 a5 axb5 e5 fxe5 h6 g4 f4 Nd2 h5 Nc4 Ra6 Ne3 Rf6 Ng2 Bd6 Ne3 Rf5 gxf5 Bf8 Ng4 hxg4 Kd2 Kf7 Kd3 d5 Kd4 g5 e4 g3 b4 f3 c4 g4 h4 a4 b6 f2 b7 g2 c6 a3 b5 g3 c5 a2 h5 Be7 e6+ Kf6 e5+ Kg7 b6 Nf6 c7 Qg8 c6 Nh7 f6+ Kf8 f7 Kg7 Ne2 g1N Rh3 g2 Ng3 Bf6 Kc5 d4 e7 d3 e8B d2 e6 Bb2 f8B+ Kf6 Be7+ Ke5 Nh1 Qg7 Rb3 Nf6 Bg6 Nd5 Bc2 Nd7+ Kb5 Kd4 b8B Re8 b7 Qe5 Bf6 Nc5 Ba7 Re7 b8R Nb6 Qf3 d1Q Qf5 Bb7 c8B Qd2 c7 Na8 Bb6 Ba6+ Kc6 Re8 Rb1 a1Q Ba5 Rh8 Bb7 Qa4+ Bb5 f1N c8R Rf8 Rc7 Rf7 Rh8 Rf8 Rg7 Rb8 Rf7 Qe3 Be1 Qd2 Rb4+ Kc3 Rd7 Ne2 Qe4 g1Q Qd5 Qg4 Rh6 Qg2 Rh8 Qa5 Bbd3 Ng1 Bf5 Qa4+ Rb5 Nc7 Ba8 Bc8 Bb7 Na8 Bh3 Ba3 Rb4 Bb2 Be4 Nd3 Rb3+ Kc2 Bh7 Kb1 Be4 Ka1 Ba6 Qaa5 R5b4 Nc5 Bad3 Qa3 Bc2 Qa7 Rbb7 Qaa5 Rbc7 Rb5 Rb7 Qa4 Rb8 Bd4 Rg3 Rb4+ Rb5 Rb1 Rb3 Qaa5 Rb6 Bb2 Rb8 Qa4+
1BB1q2N/2rb3K/RB1P4/2R1rR1P/pR1R4/q4qbN/B3nnk1/6rN w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 fxg5 Bg7 g6 Bh6 g5 Bf8 Qg4 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 a5 b4 c5 h4 e5 d4 c4 b6 g3 g7 g2 b5 c3 f6 c2 g6 Bg4 b7 Ra7 b6 Bd1 Kf5 e4 h5 e3 f7 e2 Nd2 e1R Nh3 g1Q Ba6 Qc7 Ne4+ Kd7 d6 Kc6 d7 Kd5 d8N Qe3 Nef2 Qh6 Be3 Bb4 f8R c1Q Nf7 Nc6 b8R Nf6 g8R Bd6 g7 Rg1 Bc8 Ne4 b7 Qd8 Ra2 Rh7 Nh8 Qa3 Rc2 Bg3 Rc5+ Kd6 d5 a4 Bd4 Qf4+ Kg6 Ra5 Rf5 Qff3 Re8 Bb3 g8B Rc7 Ref8 Qd7 R8f6+ Qe6 Be3 Nd4 Rh2 Bc2 Nh1 Ne2 Bf7 Nf2 Kh7 Bd3 Rh6 Bb5 Rg2 Bf4 Rg4 Bg3 Rd4 Bd7 Rg6 Qf6 Be6 Qd8 Rh6 Qe8 Bf7+ Ke7 Ra6 Rb5 Rg5 Ra5 d6+ Kf6 Ba2 Rb5 Rba8 Ra5 b8B Rb5 R8a7 Ra5 Rb7 Rb5 Rcc4 Re5 Rb5 Ke6 Rcc5+ Kf6 Rgg4 Kf5 Rdb4 Qb3 Rgd4 Qa3 Bf4 Kg4 Be3+ Qf4 Rba5 Kf3 Rab5 Re4 Rf5 Kg2 Rbc5 Qg4 Bg5 Qgf3 Bd8 Rc6 Ba5 Re5 Bb6 Rc7
K6k/q2B1nn1/1N1b2Pb/R5B1/rBRb1nRn/2B1p1P1/Q1R4r/3BB3 w - - 0 1 legal: proof: e4 d5 a4 b5 axb5 c5 h4 g5 hxg5 f5 d4 Be6 dxc5 d4 Nd2 Bd5 exd5 Na6 Ne4 fxe4 Qf3 Nb8 Qd3 Qd6 Qd1 Qd8 Kd2 Kf7 c4 Kg7 f4 e5 b4 a5 g3 h5 d6 a4 g6 h4 f5 d3 Ke3 a3 f6+ Kh6 d7 d2 f7 Kg7 b6 a2 c6 h3 b7 h2 b5 Na6 b8R Bb4 f8B+ Kf6 b6 Rh4 b7 Qa5 d8B+ Be7 c7 Rh3 c8B Nc7 c5 Qa3+ Qb3 Ra6 c6 Qa5 Bd7 Ne6 c7 Ng7 c8R Nh6 Ne2 Nf7 Rc4 Qc7 Nf4 Ra4 Rc8 Rh8 b8B d1N+ Kd2 e3+ Kd3 e4+ Kd4 e2 Kd5 e1B Be2 Bb4 Bd2 Bd6 Be1 Rh6 Rf1 h1N Ba7 Rh2 Bd4+ Ne5 Bdc3 Nhf2 Beg4 Nd3 Rf2 e3 Rd2 N1f2 Rc2 Ne4 Bd1 Ng5 Ra8 Nf3 Ra5 Nh4 Rac1 a1B Qa2 Qb8 Rd4 Nf7 Kc6 Qc8+ Kb6 Qc4 Kb7 Qc7+ Ka8 Bb2 Ne6 Nf4 Nc5 Kg5 Rc4 Kh6 Rb1 Ba1 Rbb4 Bg5 Bfe7 Nfe6 Rg4 Nf4 Rc4 Bb2 Bcd2 Bd4 Bb4 Ne8 Bbc3 Kg7 Bf8+ Kh8 Bde7 Bh6 Bg5 Rb4 Na4 Ng7 Nb6 Ra4 Bfe7 B6e5 Ba3 Bd6 Bab4 Qa7+
BRn1B1kr/3b2Nn/1rnR1pK1/NB2q1N1/NrrrPP2/2B5/4R3/5N2 w - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 g5 a4 c5 axb5 g4 bxc5 Ba6 Qd2 Bb7 Qd1 Bc8 h4 Nc6 f4 Bd6 Qd5 Nb4 Qf3 gxf3 g4 Bf8 g5 Be7 g6 Bg5 hxg5 Nc6 Kd1 Nb8 Kd2 Nc6 Ke1 Nb8 Kf2 Kf8 Ke3 a5 Ke4 h5 Kf5 d5+ e6 d4 e4 a4 c4 d3 b6 f6 b7 h4 c6 h3 c7 a3 g7+ Ke7 c5 h2 g6 d2 c6 d1N Bd2 a2 Nh3 f2 Bb5 f1R Ng5 Ra7 Bc3 Nf2 Nd2 Rg1 Rd1 a1R Nf1 Qd7 Rd6 Na6 b8N Rg3 Rg1 h1R Rg2 Nh3 Re2 Bb7 c8B Nb4 c7 Bc6 Bb7 R7a4 Ba8 Rc1 c8N+ Ke8 Nf7 Qc7 e7 Rd3 Ng5 Rd4 Nb6 Ra6 Na4 Rb6 Bc4 Bb5 Nc6 Rb1 Na5 Nc6 Bd3 Rbb4 Bc4 Ba6 Bb5 Rdc4 Nh2 Rd1 Nf1 Rdd4 Re6 Kd7 e8N Qb8 Rd6+ Ke7 Nc7 Bc8+ Nce6 Ke8 Kg4 Nh6+ Kh5 Bd7 g8B Nf7+ Bh7 Ke7 g7 Qc7 g8R Qb8 Rd5 Nd6 Ng7 Nc8 Kg6 Qe5 Rd6 N8a7 Rb8 Nc8 Bg8 Kf8 Nf3 Ng5 Bf7 Nh7 Be8 Kg8 Ng5 Qe6 Kh6 Qd5 Kg6 Qe5
N1NBn2k/b1qn1B2/n7/2Q1KRrn/2PBp3/2qrP1BB/5NB1/4Nq2 w - - 0 1 illegal: No possible last move
3Qb1KB/q1B1bB2/1p2n3/1B1R1BP1/1q3q2/B1q2R2/1Pr1R3/Rrkr2N1 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 g5 f4 a4 Qxa4+ Nc6 f6 Nh6 f5 Ng8 Qa7 Nb8 h4 Bg7 g4 Kf7 h5 Ke8 Nc3 Nc6 Nce2 Ne5 Nf4 gxf4 g5 Ng6 hxg6 Bf8 Ke2 Kd7 Kd3 Kd6 Kd4 c5+ Ke4 h5 a4 e5 d4 b6 f7 f3 a5 h4 g7 h3 a6 f2 f6 c4 Bd2 c3 Qb8+ Qc7 a7 h2 Bb5 c2 Bc3 Be7 f8R f1Q f7 Nh6 g8B Bd7 Qd8 Rc8 a8B c1Q Bh7 Qa7 Bf5 Rc7 Re8 Qh3 f8B Nf7 Bac6 Qd2 Rf1 Rh5 Rf3 Qf1 Ba8 Qc4 Bb7 Qb4 Bc8 Rc5 Be6 Qc1 Kf5 e4 Kg6 e3 Kg7 e2 Kg8 e1Q Bf5 Qf4 Bg6 Nh8 Bf7 Ng6 Nh3 Qb3 Bg7 Bf8 Qe7+ Kc7 Bb4 Qbe3 Rg1 h1R Ba3 Qb4 Ra1 Rb1 Bh8 Rcc1 Qf6 Qec3 Ng1 Rd1 Ree3 Bc6 Bf5 Be8 d6+ Kb7 d5 Rh2 Qd4 Be7 d7 Nf8 d8B Ne6 d6 Re2 d7 Rh2 Be2 Kc6 Bc7 Rf2 Qd2 Kc5 d8R Rh2 Rdd3 Kc4 Rd7+ Kb3 Bb5 Rf2 Qd4 Rfd2 Re4 Kc2 Re2+ Kc1 Qf6 Bf8 Rd5 Rc2 Qd8 Be7
5rN1/N1k1NnP1/7K/R3qN2/1N1n1b1R/2qP2N1/2QqR1bp/2qb1R1B w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 f4 f5 exf5 g5 b3 Bd7 f6 Na6 f5 Bc8 Bb2 Nb8 h4 a5 g4 Bh6 h5 Bg7 Be5 Bf8 Bf4 gxf4 g5 Nh6 Rh4 Rg8 Rh2 Rg6 hxg6 Ng8 Rh1 Bg7 Nf3 Qd7 Rh6 Na6 Rh1 Bb7 Rg1 Kd8 Bg2 Nh6 Ra4 Rc8 Ra2 Nb8 Ra1 Qd6 Qc1 Kd7 Qb2 Rh8 Qc1 Bc8 Rh1 Ng8 Ng1 Bf8 Qd1 Ke8 Bf1 Qd8 Ke2 Kd7 Kf3 h5 b4 e5 g7 c5 b6 c4 g6 c3 d6 c2 b5 c1Q f7 a4 d3 a3 b7 a2 f6 h4 Kg4 f3 b6 h3 Nd2 f2 Kg5 e4 Qc2 e3 Ngf3 e2 Nh4 e1Q Bg2 f1B Nf5 Be7 f8R Qe5 Re8 Na6 b8N+ Ke6 d7 Qb1 b7 Qc1 Nc6 Qda5 d8N+ Kd7 b8N+ Kc7 Na7+ Nc5 Nbc6 Nh6 g8N Bd6 f7 Nb3 f8R Nd4 g7 Nf7+ Kg6 Be2 Nf1 Ng5 N1g3 Bd1 Nce7+ Qc3 Rf1 h2 Ndc6 Bb7 Nb4 Qd2 Bh1 Bg2 Rf4 Qf2 Rh4 Qd2 Rc1 a1Q Rf7 Qa4 Ra1 Qac6 Ra5 Q6c5 Nf6 Rf8 Nfg8 Qb2 Kh6 Qcc3 Ne3 Qbc1 Rf1 Qec5 Ne3f5 Bf4 Nec6 Qd5 Re2 Qe5 Nce7 Nf7+
1b1n4/1k4K1/b2bn2B/1r3B2/1NP2p1B/1q2pR1R/1NPRNR2/1nR1r2B w - - 0 1 legal: proof: g4 h5 gxh5 b5 a4 c5 axb5 c4 d3 Rh7 dxc4 Rh8 e4 d5 f4 e6 f5 Qd6 Qd3 Qd8 fxe6 Qb6 e5 Qd8 Qe4 dxe4 Kf2 f5 Ke3 a5 Kf4 g6 b4 a4 h4 a3 b6 a2 h6 Bd7 h7 Bc6 b5 Qd7 Kg5 Kd8 e7+ Kc8 e8R+ Kb7 e6 Qd1 e7 Qd8 h5 Nf6 h6 Nfd7 Ne2 Ra5 Rh2 Qc7 Nbc3 Ne5 Kf6 g5 Bh3 g4 Na4 g3 Rd8 g2 e8B g1B Nb2 Ra4 Rd2 Be7+ Kg7 Ned7 Rf2 Bh2 Bg2 Ra5 Bg6 Bc5 Bh1 Re8 h8R Bcd6 Rf8 Nc5+ Rf7 Bd7 h7 Bc8 h8R Nc6 Rh3 Nd8 Rb1 a1N Rff3 Kb8 b7 Nab3 Bh7 Ka7 b8N Ba6 b6+ Kb7 Nc6 Rb5 Nb4 Re7 Rf2 Qb8 Ra1 Na4 Rff3 Nc3 Rb1 Nc5 Rf2 Kc8 b7+ Kc7 Ra1 Nb1 Rff3 Qa7 b8B+ Kb7 Rf2 Qb6 Ba7 Nd3 Rff3 Nf4 Bg6 Qe3 Bc5 Qb3 Bf2 Bg1 Bg3 Ba7 Bh4 Bab8 Rd4 Nd5 Bh6 Nc7 Rd2 Re6 Re7 f4 Bf5 Na3 Rc1 Nb1 Kh8 Ree5 Rg7 Re7 Rg2 Nce6 Kg8 e3 Rgf2 Rg7+ Kh8 Rg1 Kh7 Re1 Kg6 Nd4 Kg7 N4e6+
2B2bk1/N1N3q1/3RnK2/1Nn1R3/pR4pR/Rq1r4/q4P1P/N1Q1rn1R w - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b3 h6 Bb2 Ba6 Bf6 Nc6 Bg5 Bc8 f6 Bf5 gxf5 hxg5 Bg2 Nb8 Bh3 Kd7 Bf1 Ke8 Ke2 Kf7 Kf3 c5 Kg4 a5 d4 e5 b4 g6 b6 c4 d6 c3 b7 a4 d5 c2 b5 c1Q d7 e4 d6 e3 b6 e2 Bh3 e1N Nd2 Nf3 Nb3 Nh4 Ne2 Qdc7 d8N+ Ke8 f7+ Kd7 f6 Qe3 Nc3 Nf5 Ne6 Ng7 Ra3 Na6 b8R Nc5 b7 Ne7 Na1 Nd5 Nb5 Qb3 Qc1 Rh7 Re8 Rd8 b8R Qb7 Na7 Qa2 Nd4 Qbb3 Re5 Nge6 Rb4 Rg7 Ndb5 Ne3+ Kf3 Nf1+ Kg4 Be7 f8N+ Ke8 d7+ Kf7 Qe3 Re8 d8R Kg8 Qc1 Rf7 Rd6 Rh7 Nd7 Bf8 Nb8 Rd7 Na6 Rdd8 Nac7 Rd7 Rb6 Rd1 Ra6 Red8 Rb6 R8d3 Rd6 Re1 Bg2 Qac2 Bb7 Qca2 Bc8 Ne3+ Kh3 g4+ Kh4 g5+ Kh5 g3 Kg6 g2 f7+ Kh8 Kf6 g1Q Nc3 Nf1 N3b5 Bh6 f8R+ Kh7 Rg8 Bf8 Rg6 g4 Rh6+ Kg8 Rhh5 Qg2 Rh4 Qb7 Na6 Qh7 Nac7 Qg7+
K3B2n/Bn5q/1R1q1B1q/1NN3rR/1pb2qPR/3B4/4PN1p/RrB1k3 w - - 0 1 legal: proof: c4 e5 f4 a5 fxe5 g5 b4 d5 cxd5 Bh6 bxa5 Bh3 Qa4+ Bd7 Qf4 gxf4 g3 Bg5 g4 Bh4+ Kd1 Bg3 hxg3 Be6 Ke1 Bc8 g5 Kd7 Kf2 f5 Kf3 c5 a4 b5 d4 h5 g4 Qf8 Bd2 c4 a6 h4 g6 h3 d6 Kc6 d7 Kd5 d8B c3 g7 Kc4 a7 c2 e6 c1Q d5 Ba6 d6 Rh5 a5 Bc8 a6 Rh8 e7 b4 e8B Qe7 Ra5 Qe6 d7 Qg6 Nc3 Nc6 Ne4 Rh5 Bg2 Kb3 Bb6 Kc2 d8B Nge7 g8R Qh7 Rg6 Kd1 Rh2 Qc5 Bc1 Ke1 Rd6 Ng6 Bf6 Be6 Bh1 Rb8 a8N Nh8 a7 Nd8 Nc7 Bc4 a8R Qd5 R8a7 Ra8 Rc5 Qd2 Nb5 Qd1 Rdc6 Qd6 Ra2 Ra4 Ba7 Ra5 Rb6 Ra6 Rb2 Ra1 Ra2 Rb1 Rd5 Qh6 Nc5 Qh7 Ra1 Qh6 Rg2 h2 Rg3 Qh7 Rh3 Qh6 Re5 Qh7 Rh4 Qh6 Kg2 f3+ Kg3 f2 Kf3 f4 Ke4 f3 Nh3 f1Q Bg2 Qh1 Rd5 f2 Kd4 f1Q Be4 Qdf8 Bd3 Qff3 Nf2 Qf5 Re5 Qhf3 Rd5 Qfh7 Re5 Rg5 Rf5 Rg7 Rfh5 Qfg8 Ke5 Rg5+ Kd6 Qe3 Bf7 Qd4+ Kc7 Qgf8 Kb8 Qfd6+ Ka8 Nb7 Be8 Q4f4
1K1k4/2N2B1q/4P1pP/1N3rRR/R4p2/1NnN2Qr/4Rr1r/2bn1qRR w - - 0 1 legal: proof: g4 d5 f4 e5 fxe5 b5 c4 f5 cxd5 f4 a4 h6 axb5 Qd6 b3 Qd7 Ba3 Qd8 Be7 Be6 Bg5 Bf5 gxf5 hxg5 Kf2 a5 Kf3 c5 Ke4 a4 d4 a3 h4 g6 f6 a2 f7+ Ke7 b4 c4 b6 g4 e6 g3 Ke5 g2 e4 c3 b7 c2 h5 c1Q b5 Qb2 b6 Qf2 h6 Qf3 Qe1 Qc7+ d6+ Kd8 d5 Nf6 e7+ Kd7 e8N Qh3 Qg3 Qc8 Nc7 Ra5 Nd2 Rb5 Ne2 g1R Nc3 Ne8 Bc4 Kd8 d7 Nd6 Nb3 Na6 b8N Qh2 b7 Nc5 Nba6 Rc1 b8R Rd1 Nb4 Ke7 d8R Ra5 Ra8 Rd2 N3b5 Na4 Nd3 Rf2 Rag1 a1R Re8+ Kd7 Re6 Nf5 d6 Kd8 d7 Nc3 Raa6 R5a3 Ra4 Rc1 Re7 Ne3 Kd6 Rca1 e5 R1a2 Be6 Bg7 Bd5 Re8 f8R Qb7 Rf5 Ned1 Rh5 Rf8 Bf7 Qh3 Re6 Qa7 Kc6 Qf1 Re7 Qe3 Kb7 Qc5 Re6 Qe7 Kb8 Rac2 Rc6 Rh2 e6 Rcf2 Rcc5 Bd4 Rcg5 Be3 Bg8 Qh7 Bf7 Ke7+ d8R Bc1 Be8 Rf5 Bf7 Ra1 Rdd4 Ra3 Re4 Kd8 Re5 Raa2 Re3 Rh3 Re2 Rfh2 Ree4 Rag2 Re2 Rf2
kq5n/1N3B2/1p2R1q1/pR1RNN1P/2Q2nn1/RP1N1nq1/bRK2R2/4b3 w - - 0 1 legal: proof: e4 g5 d4 h5 g4 e5 gxh5 d5 a4 b6 a5 Rh6 a6 Rf6 Be3 Rf5 exf5 f6 Bf4 e4 Be5 fxe5 c4 Nd7 cxd5 Rb8 Bc4 Rb7 axb7 a5 Bf1 Nb8 Kd2 Kd7 h4 c5 f4 Kc7 b3 e3+ Kc2 e4 f6 g4 f7 c4 h6 c3 h5 e2 f5 e1Q d6+ Kc6 d5+ Kc5 f6 e3 h7 e2 h8N g3 d7 g2 d6 Kc6 Qd3 Ne7 Nd2 Nf5 Ng6 Ng3 Nh3 g1Q Nh4 Qc7 d8N+ Kc5 d7 Nf5 Nf2 Nd6 Nf5 Nc6 b8R Qg6 Rh2 Ne5 Nf3 Ng4 Nb7+ Kc6 d8R Be6 Ra8 Qb8 Ra3 Bg7 f8R Nf7 Bh3 Nh8 f7 Bd5 Rde8 Be4 Re6+ Kc7 Rd8 Qg1 f8R Qg3 Rd5 e1N+ Kb1 Bd4 Ne5 Nf3 Rb5 c2+ Kc1 Bc5 Qc4 Bd3 Kb2 c1N Rd8 Bb1 Nfd3 Ne2 Rd5 Ba2 Kc2 Nf4 Rd2 Qa7 Rf8 Qb8 Kc3 Ng2 Nh4 N4e3 Rd1 Ng5 Rd2 Qa7 Rff2 Kb8 Ref6 Ka8 Be6 Ng4 Nf5 Nf4 Rb2 Bb4+ Kc2 Nf3 Bf7 Qb8 Re6 Be1
kB1N4/8/1b4Pn/1RPrn1Np/rR4Nq/3BN1KN/2ppbRB1/2n4B w - - 0 1 illegal: No possible last move
3RB2R/K2P3R/1Pn5/2r1Bp2/BN3pkp/qrNRr1B1/1n6/bq3N1B w - - 0 1 legal: proof: c4 d5 cxd5 Kd7 a4 g5 h4 b5 axb5 e5 hxg5 Na6 f4 Bh6 e4 Kd6 f5 Bg7 Qf3 Ke7 Qf4 exf4 e5 Bh6 e6 Kd6 e7 Be6 fxe6 Nb8 Ra3 Bg7 Ra1 Bf8 Ke2 Ke5 Kd3 Kf5 Kd4 a5 Kc5 h5 g4+ Ke4 b4 f6 d4 a4 g6 a3 g5 Kf5 b6 a2 b5 Rh7 d6 Nh6 e8B Ra3 d5 Rh8 b7 Rf3 e7 Bg7 d7 Nc6 b8B Rg3 d6 Na5 Nc3 Rf3 Bb2 Rg8 Bg2 Rf8 Rd1 a1Q Nge2 Nc6 Rd3 Nb4 Ng3+ Kg4 Nf1 Bh8 g7 Nf7 g8R Nc6 g6 Nfe5 g7 Re3 b6 Qe1 Kb5 Qb1 Ka6 Nc4 Rh2 Rf7 Bh1 Rf8 Ba1 Nb2 Kb7 Qc8+ Ka8 Rf7 d8R Qe6 Rf8 Qb3 g8N Qa3+ Kb7 Rg7 Rf7 Rg5 Rh7 Rb5 Rh3 Rb3 Bd7+ Kg5 e8B Bg7 Ne7 h4 Rf3 Bh8 Ned5 Bg7 Nb4 Bh8 Be6 Bg7 Bc4 Kg4 d7 Bh8 Rf2 Bg7 Rc2 Bh8 Bb5 f5 Ba4 Na7 Rc1 c5 Be5 c4 Bd4 Nc6 Rc2 Re6 Bf2 Re3 Bg3 Be5 Ncd5 c3 Ka6 Na5 Ka7 Bf6 Re2 c2 Nc3 c1R Rh8 Rf3 Re7 Re3 Ncd5 Rc5 Reh7 Nbc4 Be5 Bg7 Bc7 Ba1 Nc3 Nb2 Be5 Nc6+
BK2k3/5RBr/2br1R2/1pbNq1p1/4PpB1/rP1R2n1/2N2N2/BNr1N3 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 h3 a5 Ba3 gxh3 Kf8 h4 Ke8 h5 Bf8 b3 b5 Ra2 Nd7 Ra1 Nb6 axb6 a5 Qc2 a4 Qa2 a3 Qb2 axb2 Kf2 c5 Ke3 f5 Kf4 c4 d4 g6 e4 c3 h4 c2 h6 Ra3 e6 g5+ Ke5 f4 b7 Ra8 b8N Ra4 h7 Nf6 d6 Qc7 h5 Ra3 d5 Ra5 e7 Ra6 h6 Qc4 d7+ Kf7 d8R Bb7 e8B+ Ke7 Nd7 Nh5 Be2 Bc8 Nf3 Nf6 Nc5 Ra5 Nd3 Ng8 Nfe1 Qb4 Bg4 Ra8 Nf2 Nf6 Bc6 Qd2 d6+ Kf7 d7 Ra3 Ba8 Ra7 Ra6 Ng8 Rf6+ Ke7 Rh3 Qd1 Rd3 Bg7 Rf8 Qf3 d8N Ra5 Rf7+ Ke8 Kd6 Bf8+ Kc7 Bd7 Nc6 Bc5 Nd4 Bc6 Kb8 Ra3 Be3 c1R Ndc2 Qg2 Bd4 Ne7 Bc3 Nf5 Be5 Rg8 h8N Ng3 h7 Rg7 Ng6 Qh1 h8B Rh7 Bg7 Qh6 Bh8 Qg7 Ne7 Rd1 Nd5 Rc1 Nd2 b1R Ba1 Rb2 Nb1 Rba2 Rd6 Qe5 Bg7 Ra6 Kc8 R2a3 Rdf6 Bd7+ Kb7 Rd6 Kb8 Bc6
K2R1NB1/p1n2Pp1/8/2BR1b2/2N2r1k/r1N1q3/2rR1pPr/R1RBN1q1 w - - 0 1 illegal: No proof kernel
1b4QN/N6p/2B2N1P/1r2R2N/k1pBp1PB/N1p3qn/2bb4/b2KB2N w - - 0 1 illegal: No proof kernel
k1nr4/1p1n1B2/1b1B4/1nrK3R/3R1N2/2RN1Rnr/1P2BqP1/Bb3BNb w - - 0 1 illegal: Other
1N3q2/kbR1BRRB/6nq/Pr5p/2Rr3P/1qr2RN1/N1NB1q1b/2nK4 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 f4 g5 Qa4+ Kf7 exf5 Qd6 f6 Qd8 Qc4 Ke8 f5 Nd7 Qh4 Nb8 Qf4 gxf4 a4 Kd7 g4 b5 h4 c5 d4 Kc7 a6 Kb6 a5+ Ka7 f7 e5 g5 h5 g6 c4 g7 b4 f6 c3 d6 e4 d5 c2 d7 f3 d6 e3 Ra3 b3 Nc3 e2 Na2 b2 Bd2 Qe7 d8B Qe6 d7 Qe4 Be7 Qb7 d8N Rh7 Ne6 Nc6 Nd4 Ne5 Ra4 Rb8 Rh3 Qc6 Rc4 Bb7 Rg3 Rh8 Bh3 Qe6 Bf5 Rc8 Bh7 b1R+ Nc1 Rb5 Na2 Qd5 Rc7 Qb3 Rg4 Nh6 g8R Ng6 Rg7 Nf5 Re4 Ng3 Re3 Ka8 a7 Rg8 Rec3 Rh8 R3c4 c1Q+ Kf2 Rd8 Nc2 Rd3 Rd4 Rc3 Rdc4 Qca3 Ke1 Qd6 Bd8 Be7 f8N Qb6 f7 Bd6 B8g5 Qe3 Bd8 Qh6 Nd7 Re8 f8R Re4 Nb8 Rd4 Re8 Bf4 Re3 Be5 Be7 Bf4 Rd3 Be5 Be3 f2+ Kd2 f1Q Bf4 Re4 Rf3 Qf2 Kc1 Rd4 Bd2 Bd6 Re3 Qf8 Rf3 Ne4 Rgf7 Nf2 Rg7 Bh2 Rff7 Nd1 Rf3 e1Q Ne2 Qf1 Ng3 Qf2 Rgf7 Nb2 Rg7 Na4 Kd1 Nc5 Rc6 Rd6 Bg5 Rd4 Rcf6 Bc8 Rff7 Nd3 Be7 Kb7 a8R Nc1 Ra6 Rg5 Rd6 Ka7 Rdc6 Rb5 Rc7+ Bb7
b3K1n1/2B2r1B/2r1kp1q/N4bb1/3PqP1Q/RnB2N2/N3b2B/1rBN1B2 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 e5 hxg5 e4 c4 Bh3 Ra3 Bg4 cxd5 Bd7 d4 Bc8 Rd3 exd3 Kd2 Kd7 Kc3 c5 Kc4 h5 g4 a5 e4 h4 e5 a4 d6 d2 Kd5 a3 e6+ Ke8 b6 h3 b7 c4 e7 Kd7 e8N a2 g6 a1Q b5 h2 g5 c3 b6 f6 g7 c2 g6 Qe7 Nc7 Qc3 Nf3 Qa1 Nb5 Qe3 N5c3 Qe1 Na2 Qe3 Qe1 d1B Nbc3 Be2 Nd1 Nc6 b8B Rh3 b7 Qb2 Bc7 Qbc3 b8B Nh6 g8N Qcd2 g7 Ra7 Ne7 Rb7 g8B Na5 Nc6 Rb1 Bh7 Nb3 Na5 Ng8 Rg1 h1B Rg3 Rh2 Rh3 Bh6 Rg3 Ke8 Kc6 Kf7 d7 Bg5 d8B Ke6 Be7 Rh6 Bb4 Rg6 Bc3 Rg7 Rh3 Rf7 Bh2 Bd7+ Kc7 Qdd3 Kd8 Qde4 Bbc7 Bc8 Ke8 Q3f4 Ba3 c1R Bab2 Rc2 Bc1 Bg2 Ng1 Qh4 f4 Qh6 Qh4 Bgf3 B3d2 Rc6 Bc3 Bg4 Rd3 Bb7 Nf3 Ba8 B3d2 Na1 Ra3 Bf5 Bc3 Nb3
2n3B1/1k1KBBR1/2RR2bB/1qpNr1rr/R1qb4/B1B5/pQP3P1/1b2n3 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 Ke7 hxg5 Ke8 Nd2 Qf6 dxe5 Bh6 e6 Bf8 e5 Qd8 Ne4 fxe4 Kd2 a5 Kc3 c5 Kc4 h5 Kd5 h4 f4 d6 b4 a4 e7 Kd7 e8B+ Kc7 b6+ Kb7 g6 a3 b5 h3 e6 e3 e7 h2 g7 e2 f5 e1R f6 Nc6 f7 Bd7 Ne2 Nb8 Nc3 Re4 Qd4 Na6 Bc4 Qb8 Rd1 h1Q Qe5 Bc6+ Ke6 Nb4 Nd5 Rh5 Rd2 Rg4 Qb2 Nd3 Bb3 Ne1 Rd3 Nf6 g8R Bg7 f8B Qf1 Bf7 Rgg5 e8R Nd7 Rc8 Bd4 Bh6 Ra4 Rd2 Qc4 Rg7 Rb4 Ba2 Rb3 Ke7 Re3+ Kd8 Ree5 Bb3 Ka8 b7+ Ka7 Ba2 Nb6 Bb3 Bd7 Rd3 Be6 Ke8 Qa8 b8B+ Kb7 Rc6 Nc8 b6 Qa5 Bc7 Qaa4 Bd8 Qab5 Bg8+ Bf7+ Kd7 Bg6 Be7 Bf7 Nf6 d5 Ra2 Bg1 Ra1 d4 Nd5 Bf2 Rd2 d3 Rd1 d2 Ba2 Kb8 b7 Bd4 Bb3 Ka7 b8B+ Kb7 Bc7 Bg6 Ba5 Bf7 Qb1 Bg6 Bb2 Bf7 Bbc3 Bg6 Bab4 Bf7 Qb2 Bg6 Rdb1 d1B Rc1 Be2 Rd1 Bg1 Rd4 Bed3 Rd1 Bf7 Rf4 Bdg6 Rdd4 Bf2 Rf6 Be3 Rd6 Bf2 Re4 Bd4 Re6 Qd3 Nc7 Bg1+ Rd6 Qe2 Ba4 Ba2 Bab3 Be3 Bbf7 Bb1 Nd5 a2 Ba3 Bg1 Rc4 Bd4 Ra4 Qc4
Rn1q1R2/R1BB3R/1Bbr1r1B/p1RP4/r1Kb4/k3q2p/P3NqN1/1n3N2 w - - 0 1 illegal: No possible last move
2B5/3R1p2/Pb2BBRr/2BR1nn1/1Nqqbrn1/p4PQ1/6bB/1k2K1RB w - - 0 1 illegal: No proof kernel
1k2N1R1/1q6/p1rqnRK1/B2qNqN1/5BBb/n1B1RBp1/P2P4/3N1br1 w - - 0 1 illegal: No possible last move, all moves rejected
K2B2Nn/R2r1Nk1/bnR2rp1/1bp2RNb/2P5/1q6/B1p3P1/rR1BBB2 w - - 0 2 legal: proof: f4 a5 b4 d5 bxa5 e5 fxe5 d4 c4 g6 h4 Kd7 h5 Ra7 h6 Bg7 hxg7 Ke8 Qc2 Ra8 Qc3 dxc3 Kf2 b5 Kf3 f5 e4 Kf7 d4 h5 a4 c5 e6+ Kf6 e5+ Ke7 d5 h4 d6+ Ke8 e7 Kf7 e8R b4 e6+ Kf6 d7 f4 Ke4 h3 Kd5 h2 e7 b3 a6 f3 a7 b2 a5 f2 a6 c2 Bd2 Qc7 d8B Rh7 Nh3 Qb6 Ng5 Qa5 Nc3 b1B Be1 Bd7 Nb5 Qa2 Nd6 Bb5 Ndf7 Nd7 Rf8 Nh6 g8N+ Kg7 e8B Qb3 Rg1 Rc8 a8B h1R a7 Rc6 Ra6 Rf6 Rc6 Ba2 Bb7 Ba6 a8R Rf4 Ra7 Nb6+ Kd6 Rf5 Kc7 Rf6 Be2 f1B Kb8 Rd6 Bd1 Be2 Bc8 Rf6 Bf5 Bh5 Bd3 Qb5 Bf1 Bb3 Bd7 Ba4 Be8 Qb3 Bd7 Nd5+ Ka8 B4b5 Ne5 Re6 Rf5 Nf7 Be8 Rf6 Bd7 Nh8 Nef7 Bc8 Rb6 Bba6 Ba4 Bb5 Re6 Bca6 Rc6 Qb1 Bb3 Nb6+ Kb8 Rh3 Ba2 Ra3 Bb3 Ra1 Ba2 Nd5 Ka8 Qb3 Nfh6+ Kf8 Rh1 Rd7 Nhf7 Kg7 Rh3 Qb4 Rb3 Qc3 Rb2 Qb3 Rb1 Nb6+
K3b1B1/1q1rQ3/2N4b/4pr1q/nPp1PB1N/2Bp3B/1N1N1qR1/k1n3BB w - - 0 1 illegal: No proof kernel
6B1/n2pNN1N/3PB1Np/3B1bN1/1K3pQP/Br5R/1qrq1k2/1nNb3r w - - 1 2 illegal: No possible last move, all moves rejected
Bkqn4/2qqRRN1/R2NB1rr/p2N4/1npK4/3pN2B/P1P1N2b/5bB1 w - - 1 2 legal: proof: e4 b5 h4 g5 hxg5 f5 exf5 c5 Qe2 Bh6 d4 Bf8 Qc4 bxc4 dxc5 Qc7 Kd1 Qb6 Ke1 Qd8 Ke2 d5 Ke3 Kd7 g4 Kc7 b4 e5 f4 a5 b5 h5 f6 h4 f7 h3 f5 h2 g6 e4 f6 Be6 c6 Bh6+ g5 Qc8 f8N Ne7 b6+ Kd6 g7 Ra6 g8B Bh3 c7 Bg4 b7 Qe6 c8N+ Kc7 f7 Bf3 Nc3 Qh3 Kd4 e3 g6 e2 g7 e1Q Nge2 Rd6 Nd1 Qg2 Be3 Be4 Bg1 Na6 b8N Nb4 Ne3 Qgg3 Bh3 Bd3 Nbd7 Qd2 Nf6 Kb8 Ne6 Bf4 f8R Rh6 Rf7 Rb6 Re1 Nec6+ Kc5 d4 Nfd5 Be5 Nd6 Nd8 Bh7 Bf4 g8B Qg4 Ng7 Qc8+ Rc7 Qd1 Be4 Bg3 Bge6 Rg6 Nc1 Bf1 Ne2 d3 Bf3 Qa1 Bfg2 Qe5 Be4 Qf5 Kd4 Qf7 Ra7 Qfd7 Ra6 Qdc7 Ne7 Q7d7 Ba8 Qcc7 N7d5 Bf4 Bf2 Qdc8 Rg1 h1Q Rg4 Qf3 Bg1 Bh2 Rf4 Qh5 Rf7 Qf5 Ndc3 Qb5 Ncd5 Qbd7 Re7 Bg2 Rf1 Rh6 Rf8 Bf1 Rff7 Rb5 Ndf4 Rg5 Nfd5 Rgg6
3bN2b/r1pB4/ppn2N2/2P3N1/B3b1nq/kP1N4/2B1QBRB/Bb1K3n w - - 0 1 legal: proof: a4 f5 g4 b6 g5 Nc6 a5 Rb8 a6 Rb7 axb7 Nb8 h4 d5 e4 g6 exd5 Bd7 Ra4 Be6 h5 Bc8 Rg4 fxg4 hxg6 Be6 Bb5+ Bd7 Bf1 Bc8 f4 Kd7 c4 Kd6 d4 h5 b3 e5 c5+ Kd7 g7 a6 f5 g3 f6 g2 g6 e4 f7 e3 d6 Kc6 d7 e2 d5+ Kb5 d6 Kb4 Na3 h4 Be3 h3 Nb5 h2 Nf3 g1N Bf2 Rh5 Ne5 Nh6 g8B Rf5 g7 Rf6 Nd3+ Ka5 Bh7 Re6 g8B Nc6 b8N Nh3 Rg1 h1B Rg2 Qe7 d8B Qh4 d7 Nf5 Nd6 Re7 Ne8 Re5 Bf6 Bg7 f8B Nh6 d8N Bh8 Bd6 Bf5 Ne6 Ng4 Ng5 Re3 Kd2 e1B+ Kc2 Bc3 Qe2 Bb2 Bg7 Bf6 Be6 Bd8 Bh2 Re4 Ba1 Kb5 Nb2+ Kb4 Nd7 Ka3 Ndf6 Re5+ Kd2 Bb1 Kd1 Re3 Bc2 Rg3 Rg1 Be4 Rg2 Rf3 Bd7 Rf4 Nh5 Rf8 Nhf6 Rg8 Qf3 Rf8 Bb5 Rg8 Nd3 Rf8 Bfg3 Rg8 Qe2 Nhf2+ Ke1 Nh1 Ba4 Rf8 Kd1 Be7 Ng7 Ra8 Bf2 Ra7 Nge8 Bd8
N1k3nq/1ppp3p/1PN1RP2/2N2R2/rbKNRQ1B/3RnN2/1p1N4/1r3b2 w - - 0 1 illegal: No proof kernel forced: wxLB
1Bn2R1R/rkpRP1Rn/2r4R/2nP2p1/6NQ/2RB2Rq/2n5/1n1K2Rb w - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 fxe5 Bd6 cxd5 Bb4 g3 Bf8 Nh3 h5 Na3 f4 Ng1 f3 Nc4 Be7 Ne3 Bg5 Ng4 Bf4 gxf4 hxg4 h4 Kd7 d4 a5 e4 g5 b4 a4 f5 a3 f6 g3 b6 a2 f7 g2 f8R Qe8 d6 Kc6 d7 Rh6 d8R Qg6 d5+ Kb7 h5 Nd7 e6 Rh8 h6 Kb8 e7 Ra7 e8R Ra5 b5 Ndf6 b7 Qf5 h7 Qg4 e5 Qd4 e6 Ka7 b8R Ne4 e7 Bg4 Rh6 Ngf6 Be3 Nd6 Nh3 g1N Qa4 Nc8 Bd3 Ne2 Nf2 Nc3 Rd7 Nce4 Kd1 Nc5 Rb1 Bf5 Ng4 a1N Red8 Rg8 h8R f2 Rde8 Qc4 b6+ Ka6 b7 f1N R8h7 Nd2 Rg7 Nc2 Rb3 Nb1 Rc3 Be4 Bf2 Ne6 Ba7 Nc5 Ra8 Rh8 b8R Bh1 Rbb3 Rh7 Ra3 Kb7 Bb8 Qb3 Rh8 Ra7 Ref8 Nfe4 Rf1 Nf6 Rf8 Rh8 Rg1 Nh7 Qf4 Qb6 Qg3 Qe6 Qh4 Qe3 Bb5 Qh3 Rcg3 Bg2 Bd3 Bh1 Rc3 Rg8 Rgf7 Rg6 Rg7 Rf6 Rh8 Ra1 Ra6 Rg6 Rf6 Ra7 Rff8 Rc6
n7/1B2n1Kb/3B4/1b1P1Bn1/N1rRN1Nq/1P1RN1q1/k1n2nB1/2B1B2r w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 g4 Be6 f4 Bf7 h4 Bh6 f5 Nc6 Qf3 Bg7 Qf4 gxf4 g5 Nb8 g6 Be6 Bg2 Bh6 Bf1 Bg5 hxg5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 a5 f7 h5 f8N e6 b6 h4 f6 c6 g7 f3 g6 f2 b3 h3 f7 a4 b7 h2 Ne2 a3 Bg2 f1B Nf4 a2 Nh7 Nd7 b8N Qe7 f8B Nb6 Na6 Bb5 Rd1 h1N Nc3 Nf2 Nf6 Rh1 Nc5 Bb7 d3 Rc8 Ng4 Na8 N5a4 Ne4 Rb1 a1N Rd2 Ng5 Ne4+ Kc7 Ke5 c5 d4 c4 d6+ Kc6 d7 c3 d8B c2 Ba5 Qc7+ Bd6 Ne7 Kf6 e5 Nef2+ e4 Nd5 e3 g8B e2 g7 e1Q Ne4 Qh4 Bh7 B7a6 g8B Qb8 Bc5 Qbg3 Bd6 Bd3 Be6 Kb5 Nde3 Rc6 d5 Rc4 Bb2 c1N Bc8 Bc2 Bhf5 Nd3 Kg7 Nf2 Bb7 Bd3 Rbd1 Nc2 Nef6 Be4 Rd4 Bd3 Be1 Be4 Bfc8 Bh7 R1d2 Ka5 Ne4 Bb5 R4d3 Nd4 Bf5 Nc2 Bf4 Kb4 Bc1 Rc7 Bd6+ Rc5 Nb2 Ka3 Na4+ Ka2 Rd4 Rc8 R2d3 Rc4
2RK4/4nr1B/bB4p1/RR1NNq2/N2nN3/P2R1N2/PNb1b3/2k2nbb w - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 a4 d6 a3 bxa3 Bd7 Nh3 Bg4 Ng1 Bc8 f4 Nc6 e4 Be7 d5 Nb8 Qd4 exd4 e5 Bf8 e6 b5 Bd2 Ra4 Bc1 Rb4 Ne2 Rb3 Ng1 Rg3 Bg2 Rg5 Bf1 Re5+ fxe5 Qf6 Nc3 Qg5 Nb1 Qd8 Ke2 c5 Kf3 f5 Kf4 d3 h4 d2 h6 d1B h5 c4 d7+ Ke7 Kg5 b4 h7 f4 h6 c3 Nf3 b3 Nbd2 c2 Ne4 b2 Be3 b1B Rh5 c1N Bb6 Ba6 Bd3 Qc7 d8R Bbc2 Rb1 Be2 Rb5 Qa7 Rd7+ Ke8 e7 Kf7 e8N+ Ne7 d6 Ke6 Nc7+ Kf7 Nd5 Rg8 h8R Ke6 h7 Nb3 Rd8 Bb7 d7 Nd2 Rc8 Nbc6 d8N+ Kd7 Ne6 Qa5 Rh3 Nd4 Ra8 Kc6 N6c5 Ba6 e6 Nf1 Na4 Bb7 Ned2 Ba6 Nc4 Bb7 Ncb2 g6 Kf6 Kd6 Bc4 Rg7 Rg8 Kc6 h8N Rh7 Nf7 Ba6 Ne1 f3 Ne5+ Kd6 Rh8 f2 N1f3 Bh6 Rhc8 Be3 Ne1 Bf3 Bb3 Bh1 N1f3 Nd2 Bc4 f1B Rg3 Be2 Ra7 Nef5 e7 Bg1 Raa8 Nf1 Bb3 Rh3 Kf7 Rh2 Ke8 Rh7 Kd8 Rf7 e8N+ Ke6 Nef6 Ne7 Ne4 Kf5 Ndc3 Kf4 Be6 Rf6 Bg8 Ke3 Bh7 Rf7 Rh3 Bc4 Nd5+ Ke2 Nbd3 Kd1 Ndb2+ Kc1 Rg3 Qd2 Rh3 Qg5 Rg3 Qf5 Rh3 Bb7 Raa5 B4d3 Nfd2 Be2 Rd3 Ba6 Ndf3 Qf6 Nd6 Qg5 Ne4 Qf5
B4q1R/2rPn1RN/3K1bp1/1n2n1n1/B5PB/p2N1rRB/R3R1R1/4b2k w - - 0 1 legal: proof: f4 d5 a4 e5 fxe5 b5 axb5 a5 c4 Bd7 cxd5 Bg4 b3 Bc8 g4 h5 b6 h4 Ba3 a4 Bc1 a3 Qc2 Ba6 Qc3 Bb5 Qg3 Ba4 bxa4 hxg3 d4 Ke7 Kd2 c5 Kc3 f5 Kc4 g2 e4 f4 h4 f3 h5 g6 b7 f2 e6 Kf6 e7 Bh6 e8B Bg7 e5+ Ke7 e6 Kf6 a5 Nc6 b8R Qd6 a6 Qe7 h6 Rh7 d6 Na5+ Kd5 c4 a7 c3 d7 c2 d8R Qc7 e7 Qh2 Nh3 g1B Rb7 Nb3 Ra2 Rc8 a8B Rc3 Nd2 Qg2+ Kd6 Qf3 d5 Nd4 Nf4 Kg5 Ba4 Bf6 e8R Ne7 Bh3 Kh4 Ne4 f1N Rh2 Nd2 Ng5 Kg3 Nd3 Bf2 Rc8 Rg7 h7 Be1 h8R Rf7 Rd7 Rc7 Nh7 Qf1 Re2 N2f3 Bg5 c1N Red8 Qf2 Bh4+ Kh2 Rdg8 Kg1 Rg7 Ng5 Rb8 Qf5 Rbb2 Kh1 Rg2 Qf2 Re2 Qf3 Rdd8 Qf5 Rb8 Qc8 Rb3 Qf8 Ne5 Nd3 Rc3 Nb4 Rcg3 Nbc6 Nd3 Nb5+ Kc5 Bfc3 d6 Rf3 d7 Bf6 Bc2 Nbd4 Ba4 Ne5+ Kd6 Nb5+
4N1KR/RN1b2pp/2b1P3/N2n3B/1N1R2Nn/6rk/P1n2pNB/R2q3r w - - 0 1 illegal: No proof kernel
rbrnK3/1Bp2NB1/q1BR1Bn1/n2PN3/n7/B3kn1r/2P1B1bN/2N4R w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 Nf6 axb5 Ng8 f3 Nd7 f4 Nb8 g4 h5 f5 g6 fxg6 Bb7 g5 Bc8 Qg4 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 f5 d4+ Kb4 h4 a5 g7 f4 d6 e6 d7 g3 b6 f3 h5 g2 b7 f2 g6 a4 h6 a3 h7 a2 Ne2 Kc4 b4 g1N b5 Ra4 b6 Bb4 Ba3 Qf8 d8N Bc5 Nf7 Ra8 Nc1+ Ne2 Nd2+ Kc3 Rh6 Ne7 Kf6 e5 g8B e4 g7 e3 Nf3 Ng6 Nh2 Nc6 b8B Kd2 b7 Nc3 Ba7 e2 b8N e1N Nd7 Na4 Be2 Nf3 Ne5 Bb7 Ke6 f1N Kd7 Nd8 Bb6 Qd6+ Ke8 Be4 Ba5+ Ke3 Bc3 Qa6 Bcb2 Ngh4 Rd6 Rc8 Nd7 Ng3 Bb4 Bf5 Ng5 Qd3 Nb3 Ng6 Rh1 a1R Nc1 Nb6 B4c3 Raa8 Ba3 Nf1 Ba1 Nf8 Bd5 Bh3 g8B N1d2 Bb7 Qa6 Bgd5 Na4 Bdc6 Ba7 d5 Bg2 Bg7 Bb8 Ne5 Nc4 Ngf7 Na5 Bf6 Rg8 h8B Rg3 Bhg7 Ng6 Bd3 Rh3 Bdb5 Rg3 Be2 Rh3
1B1B1R1q/1n6/5N2/1NR2r2/Bb1p1Rp1/2rBKPP1/Bkb2r1n/Rr1B3n w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 h5 Qg4 a4 Qg3 a3 bxa3 h4 a4 h3 a5 Kf7 Qf3 Ke8 g3 Rh7 Qd5 Rh8 Qg2 hxg2 Kd2 Kf7 c4 Kf6 h4 Ke5 a4 Kd4 h5 b5 a6 e5 a5 g5 c6 d6 c5 e4 f6 b4 f7 g4 h6 b3 c7 b2 a7 Bd7 c8R Qc7 c6 Qb7 a6 Bf5 c7 Qc6 h7 Qb6 Nh3 g1N Ng5 Nc6 Na3 b1R Rh6 Qb3 Rf6 Nf3+ Ke2 Kc3 Bf4 Rb8 a8B e3 a7 Rb5 Ne4+ Kb2 Bb7 Qc3 a8B Na5 Bc6 Re5 Ba4 Nh2 Nb5 Rc1 Bd5 Nb7 Ba2 d5 Bg2 Qd4 Bf3 Bb4 f8B Rc4 Be7 Rc3 Bd8 Bg6 Rf7 Rg5 Bd6 Nf6 Bf4 Rf8 h8R Nh7 Rg8 Qh8 Rf5 Rf6 Rf8 Rh5 Bd6 Ng5 Bf4 Nh3 Be5 Re6 Rf4 Re8 Nf6 Bc2 Rb8 Rg5 c8B Rh5 Bf5 Re7 B5e4 Rf5 Rc8 Re6 Ke1 e2 Kd2 e1R Rc5 Rb1 Bd1 Re7 f3 Nf2 Bb8 Nh1 Bd3 Re1 Be5 Rf1 Bb8 Rf2+ Ke3 d4+
2NR4/1Bp5/r1P2n2/b1pRBq2/R1p5/B1R1Bknb/R1PK3R/1Nr2b1q w - - 0 2 illegal: Other
1N2KrRR/2R5/bp2P1rb/1Bqk2bR/7b/1nq1n3/RP3BN1/RRq1R3 w - - 0 1 illegal: No proof kernel
3rN2N/4R1RB/1pRB1Bn1/1Nb1r2b/2qRNb2/1PB2r1n/kPKq4/6q1 w - - 0 1 illegal: No proof kernel
qb5B/rB2Q1R1/1Br4P/2PN2Nn/K1k5/6n1/1RP1b3/1nN1QbQr w - - 0 1 illegal: No possible last move
K2n3k/1R5N/n2Q1rB1/r4Rr1/2NbQn1P/NP2P2n/3R2Q1/Bnr5 w - - 0 1 legal: proof: f4 e5 c4 exf4 Kf2 d5 cxd5 b5 Ke1 b4 Nc3 b3 axb3 Bb7 Nb1 Bc8 g4 h5 gxh5 Qe7 Ra3 Qb4 Ra1 Qa3 bxa3 Ba6 a4 Bb5 axb5 Bd6 Ra3 Be7 Ra1 Bf8 Kf2 f5 Kf3 Kf7 h4 g5 d4 Kg7 h6+ Kh7 b6 a5 d6 c5 b7 a4 d5 a3 e3 a2 d7 c4 d8Q c3 d6 c2 d7 Ba3 Qd3 Na6 b8R Bb2 Na3 Ne7 Nh3 Nc6 Rb7 Rg8 Qe4 Bd4 Bb2 c1N Rh2 Kh8 h7 Nd3 Rd2 Rc8 Rc1 a1R Rc5 Ra8 Be2 Rc1 Ba1 Ra7 Qc8 Nd8 Qcc6 Ra8 Bd1 Ra7 Bc2 g4+ Kg2 g3 Kf3 g2 Ng5 Kg7 h8N g1N+ Kg2 Nh3 Kf3 Ra8 Ng6 Ra7 Ne5 Kh8 Nh7 Rg5 Nec4 Ra8 Qg6 Ra7 Qh5 Ra8 Qg4 Ra7 Kg2 f3+ Kg3 f2 Kf3 f1N Qg2 f4 Rf5 Ng3 Bb1 Ne2 Bc2 Nc3 Bb1 Nf7 Bc2 Nb1 d8Q+ Rg8 Qd6 Nd8 Qed5 Rg3+ Ke4 f3 Q5e6 f2 Kd5 f1R Qee4 Ne6 Kc6 Ndf4 Bd3 Rg5 Bc2 Nac5 Bd3 Nd8+ Kc7 Ra4 Kb8 Na6+ Ka8 Rf3 Be2 Rff1 Bh5 Ra5 Bg6 Nfe6 Rfb5 Rf6 Rf5 Nef4
3q1B1B/1b2QrN1/3b2Pb/KR4PB/3Q2b1/n2q1Pp1/R3q3/1Q1NN2k w - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 a5 exf5 Ra7 Qf3 Rb7 Qh5+ Kd7 Qd1 Ke8 h4 g4 Ra2 Rb6 Ra1 Rg6 fxg6 Nc6 g3 Nd4 Ra2 Bf5 Ra1 Nf3+ Ke2 Ng5 hxg5 Be4 Ke1 Bg2 Qb3 Qd6 Qa4 Qxg3 Qc2 Qd6 Qd1 Qd8 d4 Kd7 Kd2 Kd6 Kc3 e5 b4 c5 b6 h5 b5 e4 b7 c4 b8N a4 Kb4 e3 b6 h4 b7 e2 Bd2 e1Q Be2 c3 Qc2 a3 Nd7 g3 Ra2 h3 Nc5 h2 Nf3 Ne7 Ne6 Nc8 Ng7 Nb6 Ka5 Rh7 Qd3 c2 Bc3 Qf1 Ne1 c1Q Bh5 Qc2 Qf5 Qfe2 b8B+ Qc7 Ba1 Bf3 Nc3 Bg4 Nd1 Qcd3 Rf1 h1B Rg1 Qdf3 Qb1 Qfd3 Ba7 Be4 f3 Qd8 Rg2 Be7 Rb2 a2 Rb5 Bf8 Bc3 a1B Rh2 Bb2 Rf2 Ba3 Bb8+ Kd7 d6 Kc6 d7 Bac5 Rh2 Kd5 Bd6 Kc4 Be7 Bb7 d5 Ba3 d6 Bc5 Nf5 Bh6 Bh8 Rf7 Ng7 Kd4 Bf8 Nc4+ Ka4 Qde8 d8Q Na3 d7 Bd6 Ka5 Q8e7 Qc7 Qf6 d8Q Qfe7 Nc3 Ke3 Qdd7 Qd8 Rg2 Qed1 Ra2 Q1e2 Qe7+ Kf2 Nd1+ Kg1 Qe4 Qe7 Qd4+ Kh1 Qd7 Qe8 Qe7 Qd8+
1n2q1n1/1R1qQ2B/q2B1NpB/bN6/1PPqPK2/n6r/1N2k3/1Q1R2Q1 w - - 0 1 legal: proof: b4 a5 g4 b5 f4 h5 gxh5 e5 fxe5 c5 a4 Ke7 axb5 Ra6 d4 Rah6 Bxh6 cxd4 Bc1 Bb7 Bh3 Bg2 Bxg2 Ke8 Bh3 Qe7 Bf1 Qd8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 h4 Ke4 h6 d5 h5 f5 h7 d3 h6 a4 b6 d2 e6 Ke3 b7 a3 e7 a2 e8N d4 Nf6 d3 Nf3 Ne7 Nc3 Qc8 Ne1 Ng8 Nb5 Bc5 Qb3 Qd7 Qb1 Qe8 Bg2 Ba7 Be4 f4+ Kg4 f3 Rh5 Na6 b8B f2 Bd6 f1N Rh4 Kf2 Kf4 d1Q e3 d2 Nd3+ Ke2 Nb2 Bd4 Bf5 Bb6 e4 Ne3 Rh1 Qa4 Rd1 Nc2 Bg6 Na3 Bf5 Ne7 Bg6 Rf8 h8Q Nb8 h7 Qa6 Qg8 Ba5 h8Q Rf7 Bh7 g6 Qf8 Ng8 Qhg7 Rc7 Qge7 Rc5 Qh6 Rh5 Qg5 Rh3 Qg1 Qa7 Rf1 d1Q Bd2 Qa4 Rd1 Qf2+ Ke5 Qb6 Bh6 Qa7 Kf4 Qad7 Rd5 Qd1 Rc5 Qd4 Rc7 Rd3 Rb7 Rh3 Qh1 Qf7 Qbg1 Qfe8 Rd1 a1Q Rf1 Bd8 Qg3 Nb1 Rc1 Qa6 Qd3+ Kf2 Rd1 Na3 Qb1 Ba5 Qg1+ Ke2
2Bn1qQN/2Nb3q/1bPk3r/2N1RBR1/1q1r1P2/1K6/2Q3nP/2RB1br1 w - - 0 1 legal: proof: a4 b5 axb5 c5 d4 g5 dxc5 f5 e3 f4 exf4 g4 f3 Ba6 Qd6 Bb7 Qd1 Bc8 fxg4 h6 g5 Ba6 g4 Rh7 g6 Bc8 g7 Rh8 g5 Qc7 g6 Nf6 Be3 Qd8 Bf2 Ng8 Bh4 Qb6 Bf6 Qd8 Bg5 hxg5 Kd2 d5 Kc3 Kd7 b4 a5 c6+ Kd6 c7 e5 b6 a4 b7 e4 b5 g4 b6 e3 Na3 g3 Nh3 g2 Ng5 g1R Bd3 e2 Bf5 Nh6 g8B Bd7 c8B Ng4 g7 Nc6 b8N Rh6 b7 Ne3 Rc1 Ng2 Na6 e1Q+ Qd2 Qde7 b8R Nd8 Rb5 d4+ Kb4 d3 c4 Qh4 Qc2 d2 Re5 d1B Nc5 Be2 Bd5 Ra5 g8Q Bf1 Bf3 Qh7 Kc3 Qe1+ Kb2 Bg7 Bd1 Qb4+ Ka2 Kc6 Nb5 a3 Nc7 Ra4 Nf7 Bh8 Re7 Bd4 Nh8 Kd6 Re5 Bf2 Nd3 Bb6 Nc5 Qd2 Kb3 a2 N5e6 a1Q c5+ Ke7 c6 Kd6 Nc5 Qe1 Re3 Qf6 Re5 Rd4 Ra1 Qf8 Ra5 Ne3 Rb5 Rgg6 Ra5 Ng2 Rg1 Qe4 Ra1 Qe1 Rc1 Qb4+ Ka2 Ne3 Rg2 Qd2 Kb3 Rg5 Rf2 Rg1 Rg2 Qa5 Rg3 Ng2 Rg5 Qb4+
1bb3B1/NkbQ4/2nPBPn1/R1qB1K1Q/1n4b1/3r3N/1QP1r1nN/4R3 w - - 0 1 legal: proof: e4 g5 a4 b5 axb5 f5 exf5 c5 h4 c4 hxg5 c3 bxc3 d6 c4 Kf7 c5 Ke8 Bb2 Kd7 Bc3 Ke8 Be5 dxe5 Ke2 Kd7 Kf3 Kc7 Ke4 h5 f4 a5 g4 e6 d4 h4 g6 h3 c6 a4 f6 h2 f7 a3 g5 a2 d5 Qd6 f5 Qc5 f6 Bd6 f8Q Ne7 g7 Ra3 g8B Ng6 Nh3 Rd3 Nd2 Rh5 Rg1 h1B+ Bg2 Kb6 c7 Kb7 b6 Nc6 Qf7 Rh8 Rc1 a1B Qd7 Bb2 Bf7 Re8 Nf1 Bc3 Qh5 Ba5 Ra1 Re7 Ne3 Re8 Rge1 Re7 Kf3 e4+ Kg4 e5 Nf1 e3 Kf5 e4 Nh2 e2 Be6 e3 Be4 Bf3 Ra3 Nf8 g6 Be5 g7 Ng6 g8B Bd6 Rc1 e1N Ra4 Ng2 Re1 e2 Ra2 Ka6 b7 Bg3 b8Q Be5 Rc1 e1N Qb2 Bg3 Qa1 Kb7 Qb2+ Bb6 Ra5 Bd6 Qd4 Ba7 Rca1 Bb8 Qb2+ Rb3 Rb1 Nd3 Re1 Ndb4 Qe8 Be5 Qd7 Rd3 d6 Bd4+ B4d5 Bf2 Bef7 Re2 Be6 Qc3 Qa2 Bb6 Qb2 Qc5 Qg7 Bd7 c8N B6c7 Na7 Bc8 Qd7 Bg4+
6nQ/6Pb/B1NNR1Bb/q2b1qN1/3RQ3/1P2rR1n/k2P1n2/1qnBK3 w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bd6 b3 Kf8 Ba3 Ke8 Bc5 Bc8 Be3 Bf8 h4 a5 g4 Bc5 h5 Ra6 Bf4 gxf4 g5 Rg6 hxg6 Bf8 e4 Ke7 e6 Kd6 b6 Kc5 e7 Kb4 e8R c5 e5 f5 e6 h5 g7 h4 e7 c4 g6 a4 d6 c3 d7 f3 b7 f4 Ra2 f2+ Ke2 c2 Nc3 c1N+ Kf3 a3 Nb1 h3 Qe2 h2 Nh3 Nc6 b8N Qa5 d8Q Bf5 Nc3 Ne5+ Kg2 Rh6 Ng5 Nf3 Nce4 Rh3 Nd6 Ng1 Rc2 a2 Nc6+ Ka3 Qe4 a1Q Ba6 f1N Kf2 f3 Rc3 Qb1 Ke1 Ng3 Be2 Ka2 Bd1 Rh7 Rd3 Nh3 Rf1 Nh1 Rd4 N1f2 Qa8 h1B Qb8 Nf6 g8B Bh6 Bc4 Ng8 Ba6 Rf7 g7 Bh7 Rf8 Bg2 e8B Re7 Bg6 Bh1 Rf6 Bg2 Qe2 Re3 Re6 Ne4 Qb6 Ne7 Ne8 Rc3 Nd6 Rd3 Bc2 f2+ Kd1 Rc3 Qd8 Rf3 Qh8 Ng8 Rg1 Bh1 Rg3 f1Q+ Qe1 Qfb5 Qe3 Qd5 Ke1 Qf5 Bd1 Nef2 Qe2 Rc3 Rge3 Be4 Rf3 Bd5 Qe4 Re3+
1N3B2/4P3/5bP1/Nbkq1R2/1b1N1RbP/2br1B1Q/1nQ1bKb1/Q4Rq1 w - - 0 1 legal: proof: f4 b5 c4 h5 a4 e5 axb5 exf4 g3 d5 cxd5 a6 Bg2 h4 Bf1 h3 Nc3 g5 Ne4 a5 Nc3 g4 Nb1 Rh4 Kf2 Nd7 Ke1 Ndf6 Qb3 Ne4 gxh4 g3 Qa4 g2 Qd1 Ng3 hxg3 Ra6 Nf3 Rh6 Ng1 Rh8 b4 Kd7 e4 Kd6 d4 f5 g4 c5 b6 a4 b5 c4 g5 c3 b7 h2 b8R f3 g6 a3 e5+ Kd7 d6 a2 d5 c2 e6+ Ke8 b6 f4 d7+ Ke7 b7 Kd6 Ne2 g1Q Nd2 Kc5 d6 Nf6 Nd4 Nd5 Nc4 Nb4 Ba3 c1B Qc2 f2+ Ke2 Bb2 Bg2 Qa5 d8Q Bc3 Rf1 a1B d7 f3+ Ke3 Rh5 Qf6 Rd5 d8Q Bd6 Qd7 Be7 Bc1 Nd3 Ba3+ Bb4 Ra8 Bc3 b8N Nb2 Qg7 Qb5 Ra4 Bf6 Na5 Qc6 e7 Rd6 Qh3 Qd5 Qh8 Bg4 Qg7 Nd3 Bc1 Nb2 Nb5 Ba3 Rf4 Bb4 Nd4 Rd8 Rd1 Rd7 Rd2 f1B+ Rf2 Be2 Qh8 Qd1 Rff1 f2 Bf3 Rd8 Rhg1 h1B Rf5 Bh5 Rg4 Bg2 Rgf4 Bg4 Rh1 f1B Kf2 Ba6 Rg1 Bfb5 Rf1 Bg5 Qe5 Bf6 Qe1 Be2 Bd2 Bab5 Be3 Qd3 Qa1 Qd1 Ndc6+ Qd4 Kg1 Kb6 Re4 Q4c5 Rd4 Qdd6 Bh6 Qh2+ Kf2 Qc4 Re4 Rd3 Ref4 Qd5 Bf8 Kc5 Nd4 Qg1+
1bB2Rqq/6q1/QQ2NN1k/1Pp2BR1/r1b3P1/b2B2P1/r1n3K1/2n1N1Q1 w - - 0 1 legal: proof: f4 d5 a4 g5 c4 b5 axb5 e5 cxd5 Bg4 fxe5 Bf5 h3 Bc8 e4 Ke7 e6 f6 b3 g4 hxg4 Na6 e5 Qe8 Bb2 Nb8 Bc3 Qd8 Bb2 Ke8 e7 Kd7 e6+ Kd6 Be5+ fxe5 Kf2 a5 e8B Ke7 d4 Kf6 b4 Kg5 e7 h5 d6 a4 d5 a3 d7 a2 b6 h4 b7 e4 d6 h3 b5 h2 Bg6 Ra4 e8B Na6 b8Q Nc5 Nf3+ Kh6 Bf5 Nb3 Qa8 Nf6 Nc3 Nd5 Bd3 Nb4 Ne1 Nc1 Qa6 Nc2 Nd5 e3+ Kf1 c5 g3 e2+ Kg2 Qg5 d8N Be6 d7 Qg8 Rb1 a1Q Nf6 Bc4 Ne6 Bd6 d8Q Bb8 Bd7 Rh7 Bc8 Ra7 Rf1 Qc3 Qdb6 h1Q+ Kf2 Qh5 Kg2 Qhf7 Rf4 Qfg7 Rd4 Ra2 Rd7 Q7h8 Rg7 Ra4 Rg5 Qhg7 Nf3 e1B Ra1 Bd2 Qg1 Qb2 Ra3 Bb4 Ne1 Qe5 Rb3 Ba3 Rb4 Ba2 Rd4 Bc4 Rd8 Q7h8 Ne4 Qeg7 Nf6 Bb4 Re8 Ra2 Rf8 Ba3 Qab7 Ra5 Q7a6 Ra4
2B1R1N1/1Pkr4/B2qB1Qr/1nr1P3/KQ3b1N/3rp1N1/1QbRr1P1/4n3 w - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 f5 e4 d5 cxd5 e5 a4 f4 axb5 Qd6 d4 Qe7 dxe5 Qd8 Be3 fxe3 f4 Kd7 b4 h5 b6 a5 f5 c5 e6+ Kd6 f6 a4 g6 c4 b5 c3 b7 c2 b6 c1R f7 h4 e5+ Ke7 g7 a3 Nd2 a2 Ngf3 h3 Ba6 h2 Ne4 Nd7 b8Q Rc3 Ng3 Ngf6 g8B Rc1 Nh4 Bg7 d6+ Kf8 b7 Rc3 Qd4 Rh6 Kd1 Nc5 d7 Rd3+ Kc2 Ke7 Qb2 Ne8 Rad1 a1R Rd2 Ra2 f8N Bf6 Nh7 Bg5 Nf6 Bf4 Rhd1 Qb6 Qd6+ Kd8 Qf8 h1R e7+ Kc7 Be6 Nd6 e8B Nb5 Ng8 Qd6 d8Q+ Kb8 Qdf6 Kc7 Ra1 Rd1 Qg6 Bd7 B8f7 Rc8 Bg4 Bf5 Be6 Re1 Bh3 Re2 Bg4 Rd8 Bc8 Be4 Bge6 Ra5 Rf1 Rd7 Qe7 Bg5 Rf8 Bf4 Re8 Rd4+ Kd1 Nd3 Kc2 Ne1+ Kb3 Rd5 Qf8 Rc5 Qe7 Ra3+ Kb4 Rb3+ Ka4 Bf5 Qeg5 Bc2 Qg4 Bg5 Q4e4 Bf4 Qb4 Rd3+
Nk6/r1RQ3n/2bQ4/5nn1/2qPRN2/B1N2Kp1/PB1r1P1Q/r1R2br1 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 d5 c4 a5 cxd5 e6 bxa5 Nc6 g3 Nb8 Be2 Bd6 Bg4 Bf4 gxf4 hxg4 Ke2 Kd7 h4 g5 h5 b5 d6 c5 h6 e5 d3 c4 a6 b4 a7 b3 h7 e4 f6 e3 f5 c3 f7 g3 f8Q b2 f6 c2 f7 g2 Qg7 g4 f8R+ Ne7 Qd2 g3 Rh5 Qc7 Rg5 Ba6 Re8 Qc4 Qg6 Nf5 Re4 Kc8 Kf3 e2 Nh3 g1R Nc3 b1B Qh6 Rd8 h8B Nd7 Nf4 Nf6 Ba3 c1R Rg7 Nh7 d7+ Kc7 Qh2 e1N+ Ke2 Nf3 Rf7 Rac8 a8N+ Kb8 Bd4 Nfg5 Rfe7 Nf7 Kf3 Rc7 Be5 Rcd1 Bh8 Bc2 Rc1 Ba4 Bg7 Bc6 Be5 Rc8 d8Q Rdf1 Bh8 Ra7 Rc7 Re1 Qd7 Rd8 Nb5 Ref1 Bhb2 Rd1 Qb4 Rd2 Qbd6 Nfg5+ Kg4 Re8 d4 Re5 Nc3 Rb5 Ba1 Rb1 B1b2 Ra1 Re3 Qd5 Re5 Bf1 Re4 Ne6 Kf3 Qc5 Qg7 Qc4 Qgd7 Neg5+
5N1q/Q1pbBR1R/2N4b/1R5B/3bP1P1/rrknBr1K/P7/2nb1QQ1 w - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 b4 axb4 h3 e5 fxe5 d5 gxf5 g4 cxd5 g3 Ba3 Qh4 Bc1 Qg4 hxg4 Ra5 Bb2 Ra6 Bc1 Ra8 e4 Ke7 d4 b5 d6+ Kf7 e6+ Kf6 d5 Ke5 f6 h5 f7 b3 e7 b2 e8R+ Be6 d7 g2 Kf2 b4 Kg3 h4+ Kh3 b3 d8B Nd7 d6 Nh6 Bc4 Nf5 Be7 Bh6 f8Q Nd4 Ne2 g1B Qff1 Rf8 Rb8 Nc5 d7 Nd3 d8Q Ra3 Be3 Bd7 Nd2 b1R Nf4 b2 Ne6 Ne2 Nb3 Nec1 Nbd4 Rf7 Nf8 Rf3+ Kg2 Bf2 Bf7 h3+ Kh2 Be1 Bh5 Bc3 Nc2 Bd4 Nb4 Rf5 Kg3 h2 Qc8 Rf6 Qa6 Rf5 Qa7 Rf2 Rg1 h1Q Rg2 Rf7 Rf2 Qh4+ Kg2 Rf3 Qg1 Qf6 Qdf1 Qh8 Rb5+ Bc5 Bf4+ Kd4 Be3+ Kc3 Nc6 Bd4 Kh2 Rg3 Rf4 Rf3 Rf7 Ne5 Qe2 Bf4+ Qg3 Ned3 Kg2 Nb3 Bg6 Rh1 Rd1 b1B Rd2 Rd1 Qf1 Bc2 Qh2 Re1 Qhg1 Rb1 Rf2 Bd1 Rg7 Bh6 Bh5 Rf7 Kh3 Nbc1 Rh7 Rbb3 Rf4 Rf6 Rf2 Rd6 Rff7 Rf6 Rb8 Rf2 Rb5 Rf3+
5nnR/r1pb1QB1/Bn2P3/N4N2/Q6K/2PR2bb/PRbq2Bk/2N4r w - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 fxg5 e5 dxe5 h5 gxh5 f4 b4 axb4 e3 Ra6 exf4 Ra3 f5 Ra8 Kf2 Ke7 Kg3 b5 h4 d5 h6 d4 f6+ Ke6 h5 Kf5 c3 d3 f7 d2 g6 b3 h7 b4 g7 b2 h6 b3 Ba6 Kg5 Na3 b1B Rh3 b2 Qa4 Qe7 Nc4 Be4 Rb1 Qb4 Na5 Bef5 Ne2 Bd6 f8Q Bfd7 Qf1 Ra7 Qf7 Ne7 g8B Qd4 Qg7+ Kf5 Bd5 d1B Bg2 Qd2 Kh4 Bc2 Rd3 Ng8 Qe7 Be8 Qg7 Nd7 Qe7 Nf8 e6 Bh5 Qg7 Bd7 Qf7+ Ke5 Qf1 Bg4 Qf7 Qd1 Be3 Qd2 Nc1 Bf5 Bd4+ Kf4 Ra1 b1N Bf6+ Bb4 Bg7 Na3 Rb1 Nc4 Rb3 Bd6 Rb2 Nf6 Rb6 Bh3 Rb2 Rg8 h8R Be5 Be4 Nb6 h7 Bd6 Bh6+ Rg5 Bg7 Rg1 Bg2+ Nc4 Rg8 Rh1 h8N Be5 Qb5 Nb6 Ng6+ Kf5 Ne7+ Kf4 Rh8 Bd6 Nf5 Ng8 Bf1 Be5 Rd4+ Kf3 Bg2+ Kf2 Qc6 Kg1 Qa4 Kh2 Rd3 Bg3+
Q1K1k3/1P4rb/2b1N1n1/R4r1Q/2R2p2/nqN1rB1P/B1P2Q1r/1BR1b3 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 c5 a4 Bd6 d4 Bc7 dxc5 Bd6 Ba3 Na6 axb5 Bf8 b6 Nb8 b5 Qc7 Bb4 axb4 Ra6 Qd8 Ra5 Nh6 Ra1 Ng8 Kd2 f5 Kd3 d5 Kd4 g5 e4 g4 b7 b3 c6 b2 h6 f4 e6 g3 Ke5 d4 b6 g2 h7 d3 h3 d2 e7 Ra6 c7 Kd7 e8B+ Ke7 Qe2 d1R Bh5 Be6 c8R Nf6 Ra5 Bf5 Nc3 b1B Rc4 Nd5 Nf3 g1R Nd4 Ba2 Ne6 Rd2 Bf3 Ke8 Qf2 Rg7 B1g2 Bb3 Rc1 Ba4 Bf1 Rhg8 h8Q Bc6 Qh5+ Rf7 B1e2 Ne7 Bd3 Qc8 Kd6 Rg7 e5 Nd7 b8Q Bh7 b7 Nb6 Qa8 Re2 Bg6 Re3 Bf5 Rg2 B5e4 Rh2 Bd5 Ra7 Re4 Bg7 Ba2 Ng6 Rc4 Bf6 Bb1 Rg7 Nd4 Ra6 e6 Bh4 e7 Ra7 Ne6 Ra6 Nd8 Qe6+ Kc7 Qd5 Kb8 Qb5 Ne6 Qb3 Re4 Nc4 Kc8 Na3 Rc4 Kf7 e8B+ Ke7 Qg1 Be1 Bf7 Rb6 Bg8 Ke8 Qf2 Rb5 Nc7+ Kf8 Re4 Qb4 Bga2 Rf5 Ne6+ Ke8 Rc4 Qb3
2b3nk/P2P1rp1/1BqQ2B1/b1rb1Q1P/RRN4n/4b3/8/1Kn1NBRN w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 Kd2 Kf7 Kc2 e5 a4 b5 h4 e4 f4 e3 h6 e2 a5 e1B a6 Bd2 h7 Ne7 h5 Qd7 c6 Qe6 f6 Qd7 d6 Bb7 c7 Bg2 c8B Bh3 f5 Be1 a7 Nbc6 Nc3 b3+ Kb1 b2 Nf3 b4 Be3 Ng8 Ne4 Nd4 Ra4 Nb3 Rg1 Nc1 Ng3 Qc6 Bb6 Bf2 Qd3 Be3 Ne1 Be7 Qc2 Bd8 Nh1 Bg4 Bca6 Rc8 Bad3 Bf3 Qd1 Bd5 Be4 Kf8 f7 Bc7 Bd4 Ba5 Bb6 Qa8 Qc2 Rc5 Qd3 Qc6 Qa6 Be6 Bed3 Bc8 d7 Ke7 f8N Kf6 Ng6 Kf7 Ne5+ Kf8 Nc4 Kf7 Kc2 b1N f6 b3+ Kb2 Nd2 Bc2 Nf3 Kb1 b2 Bg6+ Kf8 f7 Nh4 Kc2 b1B+ Kb2 Ke7 f8Q+ Ke6 Ka1 Be4 Qf5+ Ke7 Kb2 Bd5 Kc2 Nf6 Kb1 Rf8 h8R Rf7 Rd8 Ng8 Rf8 Bb7 Rb8 Bc8 Bc7 Kf8 Rbb4 Ne7 Qb6 Kg8 Qb8 Kh8 Bb6 Ng8 Qh2 Ng2 Qd6 Nh4
2r1Brk1/q7/n2NNp2/2QR3P/1b2P3/1PQn1Rq1/K3Q1rB/1bN3rB w - - 0 1 legal: proof: c4 d5 cxd5 e5 Qa4+ b5 Qb3 b4 Qd1 b3 axb3 Bg4 Ra6 Bd7 Ra1 Bc8 f4 exf4 g4 h5 gxh5 a5 Bg2 a4 Bf1 a3 bxa3 Bd6 Qc2 Bc5 Qd1 Bf8 d4 g5 Kd2 c5 Kc3 c4 Kb2 g4 h4 f3 h6 f2 d6 c3+ Ka2 c2 h5 g3 d5 g2 d7+ Ke7 d6+ Ke6 h7 Qb6 d8Q Qd4 a4 Qd5 a5 Be7 d7 Qd6 a6 Nf6 a7 Qh2 Qb6+ Qd6 Rh3 Re8 h8Q Rf8 Na3 Na6 Rf3 Nd5 Qc5 Qg3 Bf4 c1Q Qhc3 f6 Nb5 Kf7 d8N+ Kg8 Nd6 Bf5 Ne6 Rac8 a8B Bc2 e4 Qd2 Ne2 g1R Nc1 Qe3 Bg2 f1R Qe2 Rf2 Bh1 Rfg2 Bc6 Qef2 Be5 Nf4 Be8 Nd3 Bf4 Qh4 Bh2 Qhg3 Q5a5 Qb6 Qac5 Qa7 Rb1 Bd8 Rb2 Ba5 Rb1 Bb4 Rb2 Bd1 Rd2 Bc2 Rd1 Ne1 Rd4 Nd3 Rd5 Bb1+
bQ1Nq2n/rR2pqk1/B1nPP3/Q4PK1/1r2bN2/3q2Q1/3R1q1B/1R3B2 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 c4 d5 cxd5 b5 a4 g4 axb5 Bh6 g3 Bg5 hxg5 f4 Qc2 fxg3 Qa4 Ba6 Qd1 Bc8 e4 Kf7 Ke2 h5 Ke3 c5 Kf4 c4 d4 h4 b6 g2 g6+ Kg7 a6 c3 a7 c2 d6 g3 d7 h3 b7 h2 e5 Rh7 e6 Qe8 d8R Qf7+ Kg5 Kh8 f4 Qe8 d5 Qb5 f5 Rf7 Na3 Rf8 Nc4 Kg7 Nh3 g1Q Qd2 g2 Nf4 Qf2 Qa5 Nc6 b8Q Nh6 Rb1 Bb7 Ne5 Qd3 Nf7 Rh8 Ba3 c1Q Bd6 Rg8 Rg1 h1B Rd7 Qcc2 Nd8 Qa4 Rb2 Rf8 Rd2 Nf7+ Kg4 Ba6 Rb7 Nh8 Kg5 Bc4 Bc7 Bb3 Bd6 Bd1 Bc7 Bf3 Bd6 Be4 Be5+ Kg8 g7 Re8 d6 Kh7 Be2 Qab5 Rb1 g1Q+ Ng2 Qh2 Bf1 Kg8 Bf4 Qh7 Bh2 Qa4 Nf4 Bhf3 Qc8 Rb8 a8B Rf8 Rd7 Rb4 Bb7 Re8 Ba6 Bh1 Qb7 Bhf3 Nf7 Ra8 Nd8 Ra7 Qbb6 Bh1 Qe3 Qab5 Qg3 Qb8 Rb7 Qg6+ Kh4 Qf7 Kg4 Kh7 g8Q+ Kh6 Qe8 Kg7 Kg5 Qc8 Qd7 Bhf3 Qdc7 Qd7 Qc8 Qde8 Qb8 Ne5 Rb6 Ba8 Rb5 Nc6 Rb7 Be4
7Q/q1P5/1n2R3/1n3NqB/1rRN1Qr1/4QP2/1K1pRb1P/1bBBrk1r w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 f6 Ke4 b6 g5 a6 e5 c5 d5 h6 d3+ Kb2 d4 h7 g4 b7 g3 a7 g2 f7 d2 f3+ Ke3 c6 Kf2 c7 e4 Be2 e3 Qa4 d1R Qa3 d3 Nd2 Nh6 Nc4 d2 Nd6 Nd7 b8R Nf5 Rb6 Rg8 h8Q Nd4 Nf5 Rg4 Re6 Bc5 f8Q Nb6 Qd3 Nb5 Ra4 Qe7 Rc4 Qg5 Qdd4 Re1 Bd1 Kf1 Ne2+ g1Q Qd3 Bd7 Ned4+ e2 Qe3 Bc6 Qff6 Be4 Qe5 Bb1 Q5f4 Rd8 a8B Rd7 Nc2 Rd4 Bc6 Re4 Be8 Bd4+ Qc3 Bf2 Qce3 Rd4 Bh5 Re4 Rc5 Rc4 Ncd4 Ra4 Bc2 Rd1 Rc4 e1R Bb3 Re2 Qee5 Rde1 Bd1 Re3 Qc5 Rea3 Qce5 Ra1 Qee3 Re2 Qb3 Ke1 Qg8 Nd5 Bc2 Ba2 Qh8 Bh4 Nc6 Re5 Qa3 Ke2 Qc3 Qa7 Ncd4+ Kf2 Rg1 Nb6 Re1 Re2 Bb3 Kg2 Qce3 Bf2 Kc2 Rb1 Ba3 Rd1 Bc1 Bb1+ Kb2 Bd3 Qee5 Bb1 Bc2 Re4 Re3 Rh1 Bd1 Kf1 Rec3 Re2 Re3 Re1 Re2 Bd3 Qee4 Bb1 Qee3 Rb4+
1Q3N2/1PN3r1/1pnKR3/k1N3R1/2rBnqq1/bP1Q2R1/P5qB/Qr4n1 w - - 0 1 illegal: No possible last move
2n1R1NN/2RQR1r1/2B5/2k2nrP/QrP5/b2r2p1/QPrN1b2/4KbB1 w - - 0 1 legal: proof: e4 c5 g4 h5 gxh5 a5 d4 cxd4 a4 b5 axb5 f5 exf5 Qb6 Kd2 Ra7 Ke1 Qa6 bxa6 Ra8 h6 g5 h4 d5 f4 Kd7 c4 Kc6 a7 e5 h5 e4 h7 a4 f6 d3 f5 g4 f7 g3 f6 a3 Qf3 d4 Ra2 d2+ Ke2 d1R Qg4 e3 Qg7 Ne7 Nf3 Nd7 Nc3 Nb6 Ne4 Bh3 Bg2 Rg8 h8N Nf5 Re1 Rb8 a8Q+ Rb7 Ra1 a2 Kf1 Bb4 f8Q d3 f7 d2 Nf6 Nc8 Qe8+ Kc5 f8R Rc7 Qh7 Rg5 Ng8 Rb7 Rf7 Rc7 Rb1 a1R Rg7 Ra6 Ra1 Rb6 Ra7 Re7 Rd7 Rb5 Qa2 Ba3 Rf7 Rb4 Rc7+ Kb6 Qa4 e2+ Kg1 Rd7 Rf8 Re7 Re8 Rd7 Qf7 Re7 Qd5 Rd7 Bh1 Rdg7 Qdd7 Bg2 Nh2 Bh3 Bc6 Kc5 Nf3 Bg2 Rf1 e1B Rf2 R5g6 Rfe2 Rg5 R2e7 Bh1 Kf1 Bg2+ Ke2 Bh3 Kd3 Bf1+ Kc2 Bf2 Kc3 Bg1 Kc2 Re1 Kc3 d1R Be3+ Rd4 Bf2 Re3+ Kc2 Reb3 Nd2 Rc3+ Kd1 Rc2 Be3 Kb6 Ke1 Kc5 Bf4 Rd3 Be5 Rf7 Bf4 Bd4 Be3 Rfg7 Bg1 Bf2+
b1kbB2N/3R2R1/r1n1rBr1/3bQ3/B1PQqp2/b3RPP1/3Q4/2KN2r1 w - - 0 1 legal: proof: d4 c5 b4 g5 bxc5 a5 a4 b5 axb5 e5 dxe5 Na6 h4 gxh4 bxa6 Qb6 Kd2 Qc7 Ke1 Qd8 Kd2 d5 e4 Kd7 a7 h5 g3 f5 f3 a4 Ne2 d4 Bb2 a3 Nf4 a2 Kc1 d3 Ng6 f4 Nc3 h3 Qd2 h2 Nd1 Bb7 e6+ Kc8 c6 h4 e5 h3 e7 Qd4 e8B Ba3 e6 Rh6 e7 Qe4 Nh8 Rg6 c7 Re6 Rg1 h1R c4 h2 Be2 Bd5 Re1 Rg1 Rb1 h1R Ra1 Kb7 c8R Rhh6 Rd8 Rhg6 Rd7+ Kc8 Rb1 Bc5 Bf6 a1B Rbb7 Bb6 Nf2 Bd8 Bd1 Be5 Ba4 Bd6 Nd1 Bb4 Bf7 Bc5 e8Q Ne7 Re3 Nc6 Qe7 Bd6 Be8 Ba3+ Kb1 Rd6 Qe5 Re6 Qc2 d2 Rg7 Bc1 Rbd7 Ba3 Qd3 Rb8+ Kc2 Rb6 Qd4 Ra6 a8Q+ Nb8 Qaa7 Ba8 Qac5+ Nc6 Nb2 d1B+ Kc1 Be2+ Qd1 Bd3 Qce5 Qf5 Qe1 Be4 Qed1 Bd5 Qe1 Bf8 Nd1 Qe4 Qed2 Ba3+
N3bQ1B/1r1BBb1R/R3Q2q/1q4nq/qQ1b4/2q1P1pN/1P2P2R/2k1K3 w - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 g4 e5 Bf4 f5 Be3 e4 Bc1 e3 fxe3 f4 Qd2 a5 Qd3 g5 Qd1 Nc6 h3 Nce7 h4 Nf5 gxf5 g4 Ra2 Ra6 Ra3 Rg6 Ra1 Rg5 hxg5 Qc7 Qd2 Qb6 Qd1 Qd8 c4 Ke7 f6+ Kd6 g6 Kc5 g7 Kb4 c5 h5 b6 d5 b7 d3 b8Q+ Qb6 f7 a4 c6 d2+ Kf2 h4 c7 a3 Bg2 a2 Qe1 Kb3 Qa8 Kc2 Bh3 d1Q Bf1 f3 Qb7 h3 Nd2 h2 Qa6 d4 Nc4 d3 Na5 d2 Nb7 Be6 c8Q+ Bc5 f8B Nh6 g8R Nf7 Nd8 Rh7 Qcb7 Ng5 Qb8 Qb5 Rh8 Rb7 Rh7 Bf7 Bh3 g3+ Kf1 f2 Ne6 Ba7 Nc7 Bc5 Bg7 Bd4 Qf8 Be8 Na8 Bf7 Rb1 a1Q Bd7 Qaa5 Bh8 Qab6 Ra1 Qh6 Ra2 Kb1 Ra5 Qda4 Qe6 d1Q Ra7 Qdc2 Ra6 Qcg6 Nh3 Qgh5 Bd2+ Kc2 Rg1 h1Q Bb4 Qhc6 Be7 Qc8 Qa5 Qc3 Rh1 Kc1 Rh2 Be8 Qb4 Bf7 Qe4 Be8 Kg2 f1B+ Kg1 Bg2 Qc6 Bf3 Kf1 Be4 Qcd6 B4g6 Qe6 Qcc5 Ke1 Bgf7 Bc6 Qcc4 Bd7 Qc3+
b1b5/4b3/B1nR1K1Q/PRqQ1pPr/1Q3N1R/3r4/2N1NpP1/2B1nk1r w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 bxa5 g5 d4 c5 dxc5 d5 cxd5 Na6 h4 Nb8 hxg5 Qd7 Bd2 Qe7 Bc1 Qd8 Kd2 Kd7 Kc3 f5 Kd4 h5 Ke5 b5 e4 b4 a4 h4 a6 f3 c6+ Ke7 d6+ Kf7 d7 Kg6 c7 Kh5 a7 Kg4 a5 Kg3 Qe1+ f2 Ba6 h3 Na3 b3 Qb4 b2 Rb1 h2 Nc2 Ne7 Kf6 Nbc6 e5 Nd4 e6 Nec6+ e7 Rb8 a8Q Rh5 Qab7 Nf3 Qa8 Qe8 d8R Ne1 Rd6 Qd7 e8Q Qe7+ Kg6 Qe5 Qe6 Qc5 Kf7 Rb5 Qh6 Rb7 Kf6 Rb8 Qa4 Rb3 Qb4 Rd3 Qab7 Na7 Qd5 Nc6 Ra1 b1B Ra4 Be6 c8N Ba2 Ne7 Bc8 Ng6 Bc4 Qd4 Bd5 Nf4 Be4 Qd5 Bf3 Ngh3 Be4 Rf1 h1R Ng1 Kh2 Nge2 Nb8 Qg8 Ba8 Qd5 Nc6 Bb2 Nf3 Rb1 Ne1 Bc1 Qe3 Ng3 Kg1 Nge2+ Kf1 Qbc5 R1h4 Rb5 Rh1 Qb4 Qc5 Ra3 Rd1 Rh3 Rd3 Rh4 Be7+
n2R2N1/3P1k1b/6rB/3Rp1Pr/N3QBr1/n4bq1/bP2KNpR/2B1Q3 w - - 0 1 illegal: No possible last move
5N2/kb1r4/1rbpq3/4nRBr/p4Q1B/P1NPR2P/6QB/Rq1K2Nn w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 gxh5 f5 bxc5 b4 exf5 b3 c3 Qa5 Ne2 Qc7 Ng1 Qd8 Na3 e5 Bc4 e4 Kf1 e3 Nh3 e2+ Kg2 Bd6 Ng1 Bc7 Qc2 Ba5 Nb1 Bb4 cxb4 e1Q Be6 Qd1 Bc4 Nf6 Bg8 Nxg8 f4 a5 Kf2 g5 h6 g4 d3 a4 c6 b2 f6 Qc7 h3 Kd8 b5 Ra6 f5 Rb6 h7 Qe5 f7 Kc7 f8Q Qd5 f6 Qc4 f7 Ne7 a3 Qe6 Bg5 Nf5 Nc3 b1B Qe2 Qc2 Ke1 g3 Rh2 Ba2 Rf2 Qb2 Kd1 g2 Rf3 Bc4 Re3 Bb7 Qh6 Qa2 f8N Ng3 Qf2 Kc8 c7 Nh1 Bh4 Qb2 Qhf4 Nc6 Bg5 Ne5 Qc2 Rd6 b6 Bcd5 Qcf2 Bdc6 Qf1 Rg8 h8B Rg6 Bhf6 Rh6 Bh4 Rh5 Bfg5 Qb1+ Ke2 Ba6 Q1f2 Kb7 c8R Rd5 Rc7+ Kb8 b7 Ka7 Kd2 Rb5 Q2f3 Rb6 b8B+ Ka8 Rc8 Bab7 Bd6+ Ka7 Q3g3 Bd5 Rc5 Bdc6 Bc7 Nf7 Rf5 Ne5 Nge2 g1R Qg2 Rc1 Ng1 Rf1 Bg3 Rf3 Bh2 d6 Bcd8 Rg3 Bh4 Rg8 Bdg5 Rg7 Ke2 Rd7 Kd2 Qb4 Kd1 Qb1+
2n1BR2/RQ1NN1Q1/1P3p2/6bb/5BKB/n2PN1p1/rPrbR1q1/1k1q4 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 Bd7 b4 Be6 b5 Bc8 g4 h5 gxh5 Kd7 f6 Nh6 e4 Ng8 e5 exf6 e6+ Kd6 exf7 Kd7 Ke2 Kd6 Kf3 Kc5 h4 Kb4 d6 c5 b6 g5 h6 a5 d7 a4 h7 a3 h5 c4 h6 a2 Na3 c3 Rh2 c2 Kg4 Kb3 Bb5 Bd6 f8R Ne7 d3 Na6 Bf4 Nb4 Qf3 c1B Re2 Bd2 Nc4 Nc2 Ne3 Na3 Qb7 Qe8 Bc6 Qg6 Nf3 Bb8 Bg3 Bf4 Ne5 Qe4 Bh4 Qg2+ Kh5 g4 d8B g3 Nd7 Ra7 Bc7 Bg5 Kg4 Rg8 h8Q Ra8 Nc4 Kc2 h7 Rg7 Bf4 Ra6 Rf1 a1Q Qg8 Ra5 h8N Qd1 Ng6 Kb1 Ne3 Rc5 Qf7 Rh7 Qg7 Rc2 Bd5 Rh5 Bf7 Rh8 Be8 Rg8 Qc6 Bb7 Qe4 Nc8 Ne7 Bd5 Qf3 Bf7 Qb7 Rh8 Bd6 Rg8 Rf5 Bg6 Bf4 Rh8 Ra5 Bh5+ Kf5 Rg8 Ra7 Ba5 Bg6 Nb5 Ra8 Nca7 Rfe8 Bd2 Reb8 Rgc8 Bf7 R8c3 Rf8 Nc8 Be8 Ra3 Ra6 Ra2 Ra7 Bg6+ Kg4 Na3 N7f5 Bf7 Ne7 Bh5+
B2rK3/1R2n2B/r1n2NR1/2p1RQP1/b2kBP1p/P2qNn2/6QQ/n6b w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 g4 exf5 g3 h4 Kd7 f3 Ra6 Ba3 Rd6 Bc5 Bg7 Bf2 gxf2+ Ke2 Bf8 g4 Bh6 g5 Ra6 g6 Bg5 hxg5 Ke8 Nc3 Ra7 Nb1 Ra8 Kd3 Kd7 Kd4 Kd6 f6 h5 a6 b5 a3 e6 g7 h4 f7 b4 f8Q+ Qe7 a7 c6 f4 b3 Qc2 b2 Bg2 f1B Be4 Nd7 Qf5 Bfa6 Nf3 Bcb7 Nc3 b1N Ne5 Rh7 Re1 Qf8 Nc4+ Kc7 d6+ Kd8 Nd5 Bb5 Nce3 Rh8 Nf6 Ne5 Kc5 Ba4 d4 Ne7 g8B Nd2 d7 Kc7 d8R Ndf3 Rd6 Qd8 d5 Qd7 Bh7 Rhd8 Kb4 Kb6 Rab1 Nd4 Qg2 Nef3 Rb2 e5 Re6 Rh8 d6 Rhd8 Qh2 c5+ Kc4+ Ka5 Ree2 Ndc6 Rb3 Nfd4 Rb1 Nc2 Ree1 Na1 Rb4 Qe8 d7 Qg6 Rd6 Ng8 Kd5 Nge7+ Ke6 Ka6 Rbd4 Kb5 Rd3 Qh5 Rc3 Qe2 Kf7 Qd3 Rb3+ Nb4 Ned5 Kc4 Rb6 Kd4 Ne3 Bd5+ Re6 Nbc6 Rb7 Rac8 a8B Rb8 Rc7 Rb6 Rb7 Ra6 Re2 Rb8 d8Q Rc8 Bg2 e4 Qa5 Rd8 Qd2 Rd7 Ke8 Rd6 Nc4 e3 Be4 Rd7 Re1 e2 Ne3 Rd6 Re5 Rd7 Reb1 e1N R1b6 Nf3 Qa2 Nd8 Rbe6 Ndc6 Qag2 Rd8+ Kf7 Nd2 Qgh3 Rb8 Nfg4 Nab3 Bf3 Nc8 Ke8 Na1 Rg6 Be4 Nf6 N8e7+ Kf7 Rd8 Bh1 Bf3 Q3g3 Bg4 Be4 Bf3 Qgf2 Bh1 Qfg2 Rd7 Kf8 Nf3 Ke8 Rd8+
2N4r/rB1R4/Q1Bb1P2/p4B1n/4pn1P/3Q1N1N/1b1PQK1n/2kn1R1q w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 g5 fxg5 f4 c4 Be6 cxd5 Bc8 g4 h6 b3 Be6 g6 Bg7 g5 Bf6 Bb2 Bg7 Bf6 Bf5 exf5 Bf8 g7 Qc8 g6 Qd8 Bg5 hxg5 h4 Kd7 b4 Kd6 b6 Ke5 b5 Ke4 b7 e5 b6 c5 d6 f3 d7 g4 Bh3 Kd3 Kf2 a6 Na3 c4 Nb5 c3 Na7 c2 Nc8 c1B Qe2+ Kc2 Bg2 Qe8 d8Q Bd6 Nh3 Bb2 Rhf1 Nc6 b8Q Nf6 g8B Nh5 b7 Ra7 g7 Ne7 f6 Nf5 Qa8 Qc6 b8N Ne3 Nd7 a5 Rae1 Qb7 Bh7+ Qe4 g8B g3+ Kg1 Nd1 Bf5 Kb1 Bd5 Kc1 Bc6 Qb1 Bh1 f2+ Kg2 Qa1 Qb7 Qb1 Qba6 Qa1 Kf3 g2 Bb7 g1N+ Kg2 Nf4+ Kg3 Qb1 Bhc6 e4 Ne5 Qa1 Nf3 Nh5+ Kg2 Bc5 Qdd3 Bd6 Qee3 Ne2 Rg1 Nd4 Qee2 Ne6 Kf1 Nef4 Rg7 Ng6 Kg2 f1N Rd7 Nh2 Rf1 Ngf4+ Kg1 Qb1 Qa3 Kc2 Re1 Ne3 Kf2 Qd1 Q3d3+ Kc1 Rg1 Rh6 Rg2 Qh1 Rg1+ Nd1+ Ke1 Ne3 Rf1 Rh8 Kf2+ Nd1+
K2BqNQ1/b3Q1P1/p2p2Nb/1R1R1Pr1/4QPN1/6k1/1n2R3/2nrbb1B w - - 0 1 legal: proof: d4 b5 h4 f5 g4 h5 gxh5 g5 a4 c5 axb5 cxd4 e4 g4 exf5 Qc7 Kd2 Qf4+ Ke1 Qg5 hxg5 Bb7 Bh3 Ba6 Bf1 Bc8 Kd2 Kf7 Kd3 e5 Ke4 d3 Kd5 d2 c4 d6 b4 e4 c5 g3 c6 a6 b6 e3 g6+ Kf6 b7 Kg5 b5 Kf4 g7 g2 b6 e2 c7 e1B h6 Be7 h7 Bg5 Qe2 Nh6 Na3 Nd7 Kc6 Bh4 b8N Ng4 b7 Nc5 Nc2 Nh6 Qe4+ Kg5 Nf3+ Kh5 Ra2 g1B Bg2 d1Q Ne5 Qf3 Nbd7 Nf7 b8R Qe3 Nf8 Be6 c8Q Nd3 Kb7 Nb2 Qd7 Bc4 Qe7 Bf1 Neg6 Ne5 f4 Kg4 Bd2 Ned3 Ba5 Bg5 Bd8 Qe2 Ne3+ Kg3 Ng4 Bh6 Rh2 Bc5 Ra5 Nc1 Bh1 Ba7 Rd5 Qe3 Q4e5 Qe4 Re2 Qa4 Qe4 Qb5+ Kc7 Qe8 Rbb5 Rc8+ Kb7 Rc2 Ka8 Rd2 Bg2 Rd1 Bh1 Rg8 Ne6 Rf8 h8Q Rf6 Nef8 Re6 N6e5 Rg6 Qg8 Rg5 Neg6 Bg1 Rd4 Be3 Rdd5 Ba7
k2N1KRr/1r2BpR1/1QN1BP1B/r1Qp1nQP/P1b3nb/8/2nNb3/8 w - - 0 1 legal: proof: b4 b5 a4 a5 bxa5 h5 g4 e5 gxh5 b4 d4 b3 dxe5 Qh4 c4 Qxc4 Bd2 Qc1 Bxc1 b2 Kd2 Kd8 Kc3 d5 Kd4 g5 f4 c6 h4 Kc7 e4 Kb7 e6 g4 Ke5 g3 h6 g2 f5 c5 e7 c4 Kd6 c3 h7 c2 a6+ Ka7 e5 Bb7 h5 Nd7 e6 Ngf6 Qg4 Ng8 Nd2 b1B Qg5 Bh6 e8N Ne7 Ngf3 g1N Nc7 Ne5 Nd4 Nd3 Bh3 Ne2 Nc6+ Kb6 a7 Rae8 a8Q Bf8 Qd8 Ne1 Rg1 Ng8+ e7 Ba6 Ne6+ Kb7 Qb6+ Ka8 Ned8 Bc4 f6 Nd4 Be6 Bh6 Ba3 c1R Bb4 Rf8 e8Q Nec2 Qe7 Nf5+ Kd7 Be2 Qec5 Ba2 Rg2 Rh1 Rag1 Bac4 Ba3 Nge7 Rg4 Ng6 R1g2 Rb1 R2g3 Rhg8 h8B Rb4 Bg7 Rh8 Rg1 Rfg8 Bf8 Ne5+ Ke8 Rb2 Qg6 Bf4 Qg5 Bg3 Rg2 Nfd4 Ke7 Bh4 Bh6 Rb1 Nb7 Rb8 Nbd8 Rb5 Rg1 Ra5 R4g2 Rh7 Kf8 Nf5 Qd4 Bf3 Be7 Ng4 Qdc5 Rb7 Qf4 Nge3 Rg8 Bfe2 R1g7 Rh8 Qg5 Ng4
B4N2/2r1QB2/4pQRb/3n1bKR/1P2P1nN/1NnPkp1R/n1Bn4/6q1 w - - 0 1 legal: proof: c4 a5 a4 b5 axb5 d5 cxd5 g5 f4 a4 fxg5 a3 g4 Qd6 h4 Qf6 h5 Bf5 b3 Ra6 g6 Rd6 g5 Bc8 Bb2 axb2 g7 Rb6 Ra7 Qd6 Ra4 Qd8 Ra1 Rg6 hxg6 Be6 Na3 Bd7 Nb1 Bc8 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 e4 Kd4 d6 h5 b6 f5 d7 c5 b7 c4 b4 h4 Rh3 c3 Ra5 c2 Bd3 c1N Qf1 Na6 b8N Na2 Bc2 Nc5 d3 Na4 Nd2 Nf6 g8B b1N g7 Qb6 g6 Rh7 d8Q+ Nd5+ Kg5 f4 Bf7 N4c3 g8B Bf5 Nd7 Bg7 Ngf3+ Ke3 Nb3 Nd2 Nf8 Qc5 Rh1 h3 Nh4 h2 Rb5 Bh8 g7 f3 Qa1 Nb6 Bd5 e6 Ba8 Nbd5 Bf7 Qd4 g8R Bg7 Qe7 Qb6 Rg1 h1N Rg3 Nf2 Rh3 Ng4 Qb2 Qb8 Qa1 Qg3 Rc5 Qg1 Ra5 Ne2 Qaf6 Nec3 Rb5 Bh8 Rg6 Bg7 Nd7 Rh8 Ra5 Rc8 Nf8 Rc7 Rb5 Nf4 Re5 Nfd5 Kh5 Qh2 Rh6 Bh7 Rg5 Bf5 Rgg6 Qf2 Kg5 Qg1 Rh5 Bh6+
rr2B2B/1r1b4/1QPn1PR1/4pp1K/1B1qN3/r4qPQ/NQn4R/N5k1 w - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 fxg5 b5 d4 cxd4 a4 Nh6 axb5 Ng8 e5 Bg7 g6 Bf6 exf6 Qc7 Bg5 Nh6 Bc1 Qg3+ hxg3 Ng8 Kf2 e5 b4 a5 c4 d5 g5 Kd7 b6 Kd6 b5 Kc5 b7 h5 g7 a4 g6 h4 b6 a3 Qe2 d3 Ra2 Kd4 c5 d2 Nh3 d1R Nc3 Rh7 Ng5 h3 Qb2 h2 Bb5 Ne7 g8Q Rh6 g7 Nd7 b8B Ra7 b7 Nc6 Qh7 Re1 g8Q Ra4 Kg2 Nb4 Qd8 Ra8 Nge4 Nb6 Be8 Nc4 c6 Bd7 Bd6 Nc2 Bb4 Nd6 b8N Rd1 Bg5 Rb1 Na6 Kd3 Qh8 d4 Qb6 Rh7 Bh6 Rf7 Bg7 Ke3 Nac5 d3 Kh3 d2 Kh4 d1Q Qh5 Qd4 Bh8 Re7 Qh7 Kf3 Nb3 Kg2 Na1 Rf7 Re1 h1Q+ Kg5 Qf1 Qh3+ Kg1 Kh5 Rg7 Re2 Qg2 Rf2 Qf1 Rf4 Qf3+ Rg4 Rg8 Bg6 Rgb8 Be8 Rb7 Qb3 Rbb8 Rb2 a2 Qa3 Ne3 Rh2 Nc2 Qb2 Ra3 Nb3 a1R Na2 Qc3 Rg6 Raa8 Nac1 R1a3 Na2 Qf3+ Kh4 R3a7 Na1 Rab7 Kg5 Rd1 Kh6 Rd3 Kg5 Rda3 Kh4 Qh1 Kh5 Qf3+
8/4B1pr/2nQ2R1/1Kp1N2P/1b1R1rBR/2PN1Q2/nnbPQ1n1/kB4r1 w - - 0 1 legal: proof: b4 a5 g4 e5 a4 d5 f4 h5 gxh5 b5 fxe5 Qf6 e4 dxe4 axb5 a4 Bb2 Qa6 Bc1 Qa5 bxa5 Bg4 Nc3 Be6 Nb1 Bc8 Ke2 Kd7 h4 Ke6 a6 Kd5 e6 Kc4 b6 f5 e7 e3 e8Q a3 h6 c6 a7 a2 h7 f4 h5 Bb4 c3 Ba5 b7 Bb4 Bh3 Bg4+ Nf3 Nf6 Ba3 Bf5 Bg4 Nd5 Rh4 Bc2 Ne1 Kb3 Nd3 Rf8 h8R f3+ Ke1 e2 Rh6 Rf5 Rg6 Rf4 Kf2 e1N Qee2 Nb6 Ke3 f2 Qf3 f1R Qde2 Rf6 Kd4 Nc4 Rh6 Rg1 Rg6 Bd6 Bc5 Nb2 Na3 Ng2 Nc4 Be7 Bd6 Rf4+ Kc5 Bf8 Rf1 a1N Be7 Ka2 Nce5 Nb3+ Kb6 Nc1 Rf2 Na6 b8Q Ka1 Qd6 Na2 Ka5 Rc8 a8B Nb8 Bb7 Rd8 Bbc8 Re8 Bcf5 Rd8 Bf6 Be7 Be4 Rh8 Bg5 c5 Kb5 Bd8 Be7 Ba5 Qfe3 Rf6 Ne1 Bb3 Rf4 Nc6 Q3f3 Bb4 Bb1 Bc2 Rd4 Rh7 N1d3 Rf4
nr2r1kN/4P2p/3P1Rb1/Qn3b1N/2Nb1Q2/1n1Rp3/BP2QBKn/3R4 w - - 0 1 legal: proof: c4 b5 e4 e5 d4 g5 h4 gxh4 a4 d5 axb5 f5 exf5 e4 cxd5 Qd6 Bf4 Nf6 Bc1 Qe5 dxe5 Ng8 g4 Kf7 f4 a5 Kf2 c5 e6+ Kg7 e7 a4 f6+ Kf7 g5 c4 g6+ Ke8 g7 Kf7 b6 a3 f5 a2 b7 h3 Qe2 h2 Be3 c3 Kg2 c2 Nh3 c1N Na3 Nd7 b8Q Ra6 Bf2 e3 Nc4 Nh6 Qf4 Ra8 d6 Nb3 Rd1 a1N Rd3 Nc2 g8Q+ Ke8 Qe6 Bg7 Qd5 Rb8 Qa5 Ncd4 Rg1 Nb6 f7+ Kd7 f8N+ Ke8 f6 Kf7 Rh1 Na8 Ng6 Re8 Nh8+ Kg8 Rg1 Nb5 Rh1 Ng4 Rg1 Bh6 f7+ Kg7 f8R Bf5 Rf6 Kg8 Qff3 Bg7 Nf4 Bg6 Nh5 Bf5 Qf4 h1B+ Kh3 Bg6 Bg2 Nh2 Rgd1 Bf5+ Kg3 Bg6 Bb7 Bhe4 Bd5+ Bf7 Kh3 Bg6 Kg2 Be6 Rf7 Bc3 Rf6 Bd4 Nb6 Na1 Ba2 Nb3 Nc4 Bef5
5n1k/1r1P3P/2R3Q1/1Qn1b2B/Np1NQB1p/2P1q1N1/2R3nK/Rq1q3q w - - 0 1 illegal: No proof kernel
1nB3n1/R5n1/7P/K1p3RQ/3nRbr1/1pPQBNr1/3NBnQP/2k4n w - - 0 1 legal: proof: f4 b5 e4 e5 fxe5 h5 d4 a5 a4 h4 d5 h3 gxh3 b4 h4 Qe7 h5 Qe6 dxe6 Ba6 b3 Bb5 axb5 a4 Bg5 axb3 Bh6 Ra4 Bc1 Ra8 Kd2 Ke7 c3 g5 h6 f5 b6 c5 b7 d5 Ba6 f4 Ne2 g4 Rf1 d4 Ra4 g3 Qc2 b2 Na3 b1N+ Kd3 f3 Kc4 g2 Kb5 g1N Qd3 f2 Bf4 b3 Be3 Nh3 Ng1 Ng5 Nc4 Nd2 Ka5 Ndf3 Nd2 Bg7 Re1 f1N Re2 Rh7 Rg2 Ng3 Ra1 Nh1 Ra2 Nf7 Rg5 Nd6 Ra1 Ne8 Ra4 Kf8 e7+ Kf7 e6+ Kf6 Ra1 Bh8 Ra4 Ng7 e8R Ra7 e7 Ke6 e5 Kd5 Qg6 d3 e6+ Nf5 Ra3 Nd4 Ngf3 Be5 Qh5 Ra8 Qg4 Bd6 Qg2 Bf4 Ra4 Rg7 Ra1 Nd7 b8Q Ra7 Qc7 Nb8 Qd8+ Rd7 Bc8 Rg6 Ne4 d2 Ra3 d1N Ned2 Rd6 Qd7 Ndf2 Qb5 Rd7 Qd3 Kc6 Ra1 Ng7 Ra4 Nb5 Re4 Nd4 Rf8 Rb7 Rf7 Rb4 e8Q+ Kd6 e7 Rc4 Rh5 Rg3 Rg5 Rb4 Qeb5 Rc4 e8B Rb4 Bed7 Rc4 Bf5 Kd5 Bg4+ Be5 Qe8 Na6 Qb1 Nde6 Ra7 Nb8 Rf4 Re4 Qh5 Nd4 Bgf5 Bd6 Nf1 Kc4 Rh4 Rf4 Bc2 Be5 Bd1 Bd6 Qh7 Re4 Qf5 Kd3 Be2+ Kc2 N1d2 Kc1 Rhg4 Rf4 Qd3 Re4 Re5 Rf4 Rgg5 Rfg4 Re4 Bf4
R1n2Qb1/5N2/1p3nR1/2pB1PQP/1B2BPN1/Q4p1R/b2r3r/q1K2bk1 w - - 0 1 illegal: No proof kernel
Q3QqRK/1B2B2P/1P1pbN2/2r3QB/n1N2nRb/1PRn4/kp1b2p1/8 w - - 0 1 legal: proof: g4 f5 e4 h5 gxh5 b5 exf5 c5 a4 c4 axb5 c3 b3 Nf6 Qg4 Ng8 d4 a5 d5 a4 b6 Rh6 Qb4 Rh7 Qa3 Rh6 Qb2 cxb2 c4 Rh8 c5 Ra7 Bd2 Rc7 Bc1 Rc6 dxc6 Rh7 Bg5 Rh6 Bc1 Rh8 Ke2 Kf7 Kf3 e5 Kg4 g5 f4 a3 h4 e4 c7 e3 h6 a2 Kh5 g4 c6 d6 h7 g3 f6 Ke6 Kg6 Kd5 f7 g2 f5 e2 f6 e1B h5 Bg3 h6 Bg7 f8Q Bh4 f7 Bd4 Qe7 Bd7 c8B Kc5 f8Q Kb4 c7 Bg5 Rh3 Nc6 Be2 Nb8 Nc3 Ka3 Ne4 Bg7 Nf3 Na6 Qfe8 Nb4 Ne5 Bh4 Nf6 Na6 Rc3 Nc5 Bh5 Be6 Bg5 Na4 Bb7 Qc8 Re1 a1N Nc4+ Ka2 Re4 Nc2 Rg4 Nb4 Q7d8 Qa8 c8Q Nd3 Qb8 Bf8 Qa7 Be7 Kg7 Be1 Bh4 Bd2 Qa5 Qc8 Qg5 Qa8 Qc8 Bd8 Qcc6 Ne7 Qcd5 Rf8 h8R Ng6 h7 Ngf4 Rg8 Rf7+ Kh8 Rc7 Qa5 Rc5 Qa6 Qc8 Qa8 Be7 Qd7 Qf8 Qde8 Bd8 Qh6 Nf2 Nd5 Bg5 Qg7 Bh6 Be7 Bg5 Nf6 Bh4 Qg5 N2d3
1R3nNB/NQ3R2/2b1Qqp1/RPp5/bN1p4/1P1nPBB1/K1q5/1q3rk1 w - - 0 1 illegal: No possible last move, all moves rejected
6bB/1R2NnB1/1Pn3QP/PkbR1N1K/5p2/4QBR1/qpN3qp/1r1b4 w - - 0 1 illegal: No proof kernel
2B1Q2N/1K2n2n/pq4P1/B2r1P1p/R2B4/6Qq/1Pp2NbQ/bkn2RN1 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 Ba6 exf5 Nd7 a4 bxa4 g4 Bb7 f6 Bc8 f5 Nb8 f7+ Kd7 Qe2 a6 f6 Ra7 Bg2 Rb7 Qf3 Rb3 Qd1 Rf3 Bf1 Rf5 gxf5 g5 h4 g4 Qb3 Bh6 Qd1 Bg5 hxg5 Qe8 Rh3 Qf8 Rh1 Qd8 Kf2 Kd6 Ke3 Kc5 Ke4 Kb4 f8Q h5 d4 c5 f7 e5 d6 g3 Kd5 e4 d7 e3 g6 a3 Qe1+ Kb3 Qe8 Kc2 f8Q a2 Qd6 g2 Nc3 e2 Ne4 c4 Be3 c3 Qh2 Qc7 d8B Nc6 Nf2 Qg3 Ba5 Qh3 Kd6 Nce7 Kc7 Rh7 d5 Bb7 d6 Nf6 d7 Rg7 d8N Nh7 Bd4 Bd5 Rb1 a1B Nf7 Bc6 Nh8 Rf7 Nf3 g1Q Bg2 Rf6 Rd1 Rd6 Rd3 Rd5 Kb6 Qf1 Ng1 Qe3 Bf3 Qh3 Kc7 Qe6 Re3 Bb7 Re4 Qb6+ Kb8 Kb3 Bg2 c2 Qc3+ Ka2 Qcg3 e1N Rf4 Re5 Rg4 Ba8+ Bb7 Nd3 Rh4 Rd5 Rf4 Qf6 Bc8 Kb1 Ka7 Nc1 Rh4 Bc6 Kb6 Bb5+ Kb7 Bf1 Nf3 Ne2 Bdb6 Nc6 Ra4 Nc1 Bd4 Bg2 Rf1 Ne7 Ng1 Qb6+
NQQ5/Rr4pb/4B1Bn/2r2N1R/PP3pNp/1Pn1Bqqk/1QK4q/8 w - - 0 1 illegal: No proof kernel
2b1Rrb1/1rqQ3P/5bRN/1B4PB/5pBn/N1p1p1kN/4R1Pb/1Q1K4 w - - 0 1 illegal: No proof kernel
R2n1k2/1qQ3pp/RBR1n3/5NQP/3qrbN1/1Q2P1P1/1B2N1p1/Kq4n1 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 c5 b4 f4 bxc5 f3 g3 Kf7 Bh3 Ke8 Bg2 fxg2 Ne2 d5 Na3 e5 Rb1 a5 Ra1 d4 Rf1 Be6 Nb1 Bd5 exd5 e4 Rh1 e3 Ng1 e2 Bb2 Ra7 Ba3 Re7 Bc1 Re3 dxe3 Nd7 Kd2 Nb8 h4 e1N f4 d3 Kc3 d2 Kb2 a4 c4 Na6 h5 Nf3 f5 Nh4 c6 Qc8 c7 Nh6 b6 Kf7 b7 Bc5 b8R Kf8 d6 Bb6 d7 Qe8 c8N Nf3 d8B Nb4 c5 Ng4 c6 Nf6 c7 Bd4+ Nc3 Nd7 f6 Qf7 Nd6 Be5 c8Q Nc5 Ra8 Qb7 f7 Bf4 Nh3 Nc6+ Qb3 d1Q Nf2 Qd4 Bb6+ Nd8 Ng4 Ke7 Qc7+ Nd7 Kb1 a3 Ne2 Rg8 Bb2 Re8 Rc1 Ng1 Ka2 Nh3 Rc6 Ng1 Qb8 Nc5 f8Q+ Kd7 Qf5+ Ke7 Qg6 Kf8 Qg5 Re4 Nf5 Ne6 Qc7 Qf6 Rd1 Qe5 Rd4 Qf6 Rda4 Qd4 Kb1 a2+ Kc1 Qb8 R4a6 a1Q+ Kc2 Qa2 Kc1 Qb7 Kc2 Qa5 Kb1 Qac5 Ka2 Qc2 Ka1 Qb1+
2k1B2n/QpPnn3/1PP2bNQ/R4RQ1/3N1q1N/ppR5/b2q2B1/b6K w - - 0 1 illegal: No proof kernel
1n6/4R2q/1p1r3Q/B1N1PR2/PBN2qn1/1p1KNPr1/1p3k2/R2Qrr1B w - - 0 1 illegal: Other
2br4/P1Pk1p2/1Knpp3/Q7/P1pB1R1Q/B1qn1R1N/n3N3/1Q2rB1N w - - 0 1 illegal: No proof kernel
1R1Q2b1/NQrpR3/r1B1BP1b/3r1r1k/K1N1BP2/1pq1p3/1p2P3/1R1Q4 w - - 0 1 legal: proof: b4 c5 a4 a5 bxa5 g5 g4 f5 gxf5 g4 h4 Ra7 d4 Nf6 a6 Ra8 a7 Kf7 a5 Ke8 Ba3 Ne4 Bb4 Ng5 hxg5 cxb4 a6 Nc6 Bh3 Na5 Bg2 Nb3 Bf1 Nc5 dxc5 Bh6 Rh3 Bg7 Rh1 Bf8 Kd2 Kf7 f4 e5 c4 b5 Kc2 h5 Kb3 g3 f6 Kg6 c6 e4 c5 e3 c7 g2 c6 h4 Nc3 h3 Rb1 h2 Nf3 g1R Bg2 Kh5 g6 Rh6 g7 Qe7 g8B Bb7 c8R Qe5 c7 Rb8 Nd2 Bd5+ Nc4 Rb6 Be4 Rg5 a8B Rf5 a7 Bg7 Rg1 h1R Rb8 Rg6 c8Q Bh6 Qd8 Rgg5 Be6 Qc7 Kb2 b3 Ka3 b2 Bc6 b4+ Ka4 b3 a8Q Qe5 Nb5 Qc3 Rg4 Rg1 Na7 Rh1 Qd3 Rc1 Qb7 Rc2 Qd1 Rc1 Bg8 Bf7 Rg3 Rd5 Rg2 Rgf5 Rg7 Rc2 Bh7 Bg8 Re7 Rc5 Bed5 Rd2 Be6 Rdd5 Bb5 Rc7 Bc6 Rfe5 Bc2 Rf5 Be4 Ra6+
2bn2nQ/rB1n1R1b/2q1Q1N1/bPB5/3Q2q1/R3qP1P/4rRrk/1B1KN3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 Kf7 b4 Kf6 b6 Ke5 b7 g5 f6 a5 h6 d5 h3 a4 b5 a3 f7 d3 h7 d4 c5 g4 c6 a2 c7 d2+ Ke2 Kf4 Qa4 e5 Qc4 e4 Qa4 g3 Kd1 g2 Bd3 e3 Bc4 e2+ Kc2 e1R Ba3 d1B+ Kd2 d3 Nf3 g1Q Nh4 Qe8 Rh2 Qc6 Bc5 Bc2 Na3 Nd7 b8Q Ra7 Qb6 Qg3 Qba6 Re2+ Kc1 Qg4 f3 Kg3 Ng6 Be7 f8R Bd8 Rf2 d2+ Kb2 d1Q Bd3 Bb1+ Nc2 Qd2 Rf7 Qc1+ Kc3 Qe3 Ne1 Bc2 Qd4 Bb1 Rf1 Kh2 Qb6 Rg2 Rf2 Bc2 Rb1 a1N Rb3 Bb1 Ra3 Nc2 Kb2 Nb4 Kb3 Ba6 c8B Bc7 Bb7 Bd8 Ba8 Bc8 Bb7 Bc7 Qa6 Ba5 Kb2 Qf6 Qe6 Nc6 Bf5 Nd8 Bfe4 Ne7 Bf5 Re8 h8Q Ng8 Bc2 Qfe5 Bd3 Qc7 Bf5 Qc6 Bd3 Ba2 Kc2 Bd5 Kd1 Be4 Bb1 Re7 Ne5 Bh7 Ng6 Qc3 Qb3 Re2 Qe6 Qe3
1R4N1/b2P1B1P/k4r2/4BqP1/1rb3n1/N2n1r1Q/Bq1bR1K1/1qRQNn2 w - - 0 1 illegal: No proof kernel
1Rr1Q2Q/nP5q/bNQ3N1/qBP1bN1r/n1R2b2/r6k/3P4/RK3nBq w - - 0 1 illegal: No proof kernel
1r1k2nR/1RRN1nNb/1P4B1/B3Q3/1Q1P2Pr/nn2K2r/2Q2B2/3qb1bn w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 g4 c5 b4 h5 d4 a5 f4 e4 b6 c4 b5 e3 d6 h3 f6 a4 b7 c3 f5 h2 f7+ Kd7 f6 c2 Nd2 h4 Ngf3 h3 Nb3 a3 Ng5 a2 Rb1 a1N Ne6 Qe8 Ng7 Nc6 b8Q Ne5 Nc5+ Kd8 d7 Bd6 f8R Rh4 f7 Bc7 Rg1 h1N Bg2 h2 Be4 Rh3 Bg6 Bd6 Bd2 Bc7 Be1 c1N+ Kf1 Rh4 Bf2 Ncb3 Ke2 Nc2 Qd3 Na3 Qc2 Rh3 Rgc1 Bd6 Qb6+ Bc7 Qa5 Rb8 Qe1 Bb7 Qa5 Be4 Qb4 Nh6 Rh8 Ng8 f8Q Nf7 Qd6 Qf8 Qe5 Bd6 Bh5 Bh7 Bg6 Qe8 Kd3 e2+ Ke4 Rh4 Ke3 e1B Rb2 Qe6 Rbb1 Qc4 Rb2 Qf1 Rbb1 Kc7 d8B+ Kc8 Bb6 Bc7 Ba5 Kd8 Nd7 Qe2+ Kf4 Qd1 Ke3 Ng3 Qa2 h1R Rc4 R1h3 Qc2 Bb6 Rc7 Bc5 b6 Bd6 Rc1 Nh1+ Qg3 Rh6 Rb7 R3h4 Qf4 Bc7 Qfe4 Bh2 Qe5 Bg1 Qe2 Rh2 Rcc7 R6h4 Qc2 R2h3+
1BqrRn2/n1B3bn/1PKPR2Q/3rb3/Nr1bQ1b1/3R2P1/B2N4/3b2kN w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 Kf4 b4 e5+ d6 a5 b6 h5 f3 Kg3 d4 Kf2 f4 e4 f6 a4 b5 a3 b7 h3 b6 h2 f7 a2 g3 e3 f5 e2 f6 e1N d5 h4 Bf4 h3 Ba6 Nf3 Qa4 Bg7 f8N Rh5 f7 Nd7+ Kb5 c5 b8B c4 Nd2 c3 Rd1 a1B Nb1 c2 Kc6 c1B Be5 Bcb2 Ne6 Nf8 d7 Nf6 Nc5 Bd4 Rd3 N6h7 Bec7 Rf5 d6 Rd5 Bb7 Bde5 Nd2 Bad4 Qc4 Ra4 Qc2 Rb4 Ba6 Qe8 Bc4 Qe6 d8R Bd7+ Kb7 Ba4 Qb1 Bd1 Kc6 Qc8 Re8 Kg2 Ba2 Kf2 Ne2 Kg2 Re1 h1R Qc2 h2 Nce4 Rf1 Nf2 h1B Nc3 Kg1 Re4 Bg2 Re1 Bh3 Nh1 Bg4 Re4 Rf2 Na4 Rh2 Qb1 Rh6 Ree3 Re6 Re2 Re7 Ree3 Rd7 Re4 Rd8 Qc2 Bf4 R4e6 Bfe5 Qb1 Nfg5 Qc2 Ne4 Qb1 Nc3 Qc2 Ng6 f8Q Nb5 Qf4 Ngf8 Qh6 Be3 Qc4 Bf2 Qcf4 Bfd4 Qe4 Na7+
b4K2/3PN3/rRn5/1r1QPr2/R2BB1Q1/3P2R1/N1nbnr2/1BbkqrQ1 w - - 0 1 illegal: No possible last move, all moves rejected
b3N3/P1Q1n2B/1rr1knb1/KP6/1QN2b2/Q2RP3/1BbR2q1/n1r2bNR w - - 0 1 illegal: No proof kernel
N1Bbr2K/1b6/R1rQr1qR/2Q1B2n/2P3B1/P2P2Q1/r1r3bq/1kNN2n1 w - - 0 1 illegal: No proof kernel
bk6/1q2bB1N/n4r1P/1B3n1n/2Q2RRK/1bP1rQBb/2P1QbN1/6qR w - - 0 1 legal: proof: f4 b5 g4 c5 a4 e5 axb5 h5 gxh5 exf4 Kf2 c4 Ke1 c3 dxc3 Bb4 Qd2 Ba3 Qd1 Bf8 Kf2 d5 b4 Kd7 e4 Kc7 h4 g5 h6 a5 h5 f5 e5 a4 h7 g4 e6 g3+ Kf3 a3 e7 a2 e8B d4 h6 d3 Bg6 g2 Bd2 Ne7 Bf7 Na6 b6+ Kb8 b7 Qc7 b5 Be6 Be1 d2 Ne2 g1B Bg3 Bb3 Kg2 f3+ Kh3 f2 Nf4 Qc8 Qe2 d1B Ng2+ f4+ Kh4 Qd7 Qc4 Bf3 Nd2 Rg8 h8Q Rg6 Qg8 Rf6 Qg4 Bc6 Rc1 a1Q Nf3 Qd5 Bd3 f1B Ng5 Bf2 Qe2 Qb1 Nh7 Nf5+ Kg5 Be7 Kg4 Ng7 Kh4 Nh5 Qf3 Qa1 Re1 Qd7 Re4 Qc7 Qe2 f3 Rg4 Qc1 Nf4 Bh3 Ng2 Qg1 Rf4 Ka7 b8R Qb7 Rg8 Re8 b6+ Kb8 Rgg4 Ba3 Qd4 Re3 Bb5 Be7 Qe4 Qa7 Qd5 Ba8 Qdc4 Qb7 Qed3 Be1 Qe2 f2 Qf3 f1N Qce2 Qc8 b7 Bf2 Qc4 Nd2 Qfe2 Ne4 Qf3 Nd6 Qce2 Kc7 b8Q+ Kd8 Bbc4 Kd7 Qb6 Qb7 Qd4 Kc8 Bb5 Kb8 Qdc4 Nf5+
5K2/knr5/N5BP/1Q1nB1b1/1bQ3P1/bn1P3R/Q2Rq3/bb1NrNqB w - - 0 1 illegal: No proof kernel
bR1N1NR1/2K1q3/b1nP4/3Q1b1k/B4bb1/BrP1P3/Nnn4q/QB1R1r2 w - - 0 1 illegal: No proof kernel
3B2bq/1q2BnP1/QqB3rR/QNb2k2/6n1/1PR2PKR/2qr2QN/2q2r2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 g4 Kf6 b6 c5 d6 a5 d5 e5 b7 h5 b3 a4 d7 a3 d6 h3 Qd3 h2 Qg3 a2 Qf3 e4 Bg2 e3 Bf1 c4 Bg2 h4 Na3 e2 Nb5 h3 Ba3 c3 Rc1 Nc6 b8R a1R Rb6 c2 g5+ Ke5 g6 Rh6 g7 Rg6 f6 Nh6 f7 Ng4 Ra6 Qb6 d8B Be6 d7 Bc5 f8Q Bg8 Q8f7 Rb1 Qc4 Rc8 Qg3+ Kf5 Nf3 Nce5 Qa4 Nf7 Qa5 Be3 Bae7 Rc5 Qa1 Rd5 Qa4 Rd2 Qa1 Qb8 Re6 Qb6 Qa6 Bc5 Rd6 Rg5 Rh6 Rg6 Ne5 Ng5 Bc6 Nf7 Nf3 Ra1 Qg2 Rb1 Rf1 h1Q Rg1 Qh2 Rh1 Qhb8 Nh2 Q8b7 f3 Ra1 Bc7 Rb1 d8Q Ra1 Rd1 c1Q Qda8 Qc2 Bcd8 Rb1 Rc1 Ra1 Qa5 Rb1 Q8a6 Ra1 Nf1 h2 Rh3 Ne3 Kf2 Ng4+ Kg3 e1Q+ Qf2 Qe3 Qg1 Qh6 Qg2 Qh8 Rh6 Qa2 Rc3 Qc2 Rg1 h1Q Nh2 Re1 Rh3 Rc1 Re1 Rcd1 Re6 Rf1 Rd6 Rff2 Re6 Qhc1 Rd6 Rf1 Re6 Rg5 Reh6 Rg6
3KBQRq/k2PnNrP/P4nQb/2r3n1/r1B5/1b1r2B1/5r1N/NR1q2R1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 Kg4 b5 Kf5 c5 h4 Kc7+ e6 Kb7 d4 b3 a4 b2 e4 f6 e5 c4 h6 b4 a5 g4 a6+ Kb6 h5 g3 h7 c3 h6 b3 d6 g2 d7 c2 d5 Ka7 e7 Nc6 Ke6 f5 e8B f4 d6 f3 Bc4 f2 Nf3 g1N Na3 b1Q Qf1 b2 Bf4 c1R Nc2 Nf6 Bg3 Rg8 h8R Ne7 h7 Rg7 Nh2 Nh3 Rg8 Rb8 Qd3 f1R Rg1 Rb4 Qe4 Bb7 Qg6 Qb8 d8N Rf2 d7 Ra4 Nf7 Qc8 Kd6 Bd5 e6 Ng5 Bb3 Qa8 Kc7 Rd1 Ba2 Rd3 Bc4 Qd1 Rc1 b1R Na1 Rb5 Rb1 Qc6+ Kd8 Rc5 Bb5 Bb3 Bc4 Nc8 e7 Qa8 Qe4 Rg6 Qe6 Bh6 Qe4 Rg7 Qg6 Qb8 Rh8 Qe5 Rg8 Nh5 Nh8 Qf6 Bef7 Qb2 e8Q Ne7 Qf8 Qc3 Qe6 Rg6 Be8 Qf6 Nf7 Qh8 Qd6 Rg7 Qg6 Nf6
1b3R1r/QP3rN1/1r1B1nn1/KQnb2P1/1n1B1P2/Q1N4R/2q2n1R/3q2kB w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 f6 e4 g5 c4 f7 h3 b6 h2 b7 a4 b5 h4 Kb4 e3 b6 c3 Bd3 e2 Nd2 e1N Bh7 c2 Qh5 a3 Qf3 a2 Qa3 h3 Ne2 Nf3 Nf1 Ne5 Bb2 c1Q Nfg3 Ng6 Nh5 Nd7 Ng7 Ra6 Nc3 Ngf6 b8Q+ Qc7 b7 Qd1 Rb1 a1N Qa7 Rb6+ Ka5+ Nc5 Bg8 Be7 f8R Nc2 Rc1 Nb4 Rc2 Be6 Rg2 Kd7 d6 Kc6 d7 Bd6 d8B Bd5 Be7 Qc8 Re2 Bb8 Bd6 Qf5 Be6 Qfc2 Bg4 Rh7 Bf3 Rh8 Rf1 h1N Rh2 Nf2 Bh1 Nfd3 Rf3 Nf2 Rg2 h2 Rh3 Bg8 Na2 Kd5 Nc3+ Kc4 d5 Kd4 Ne4+ Kc4 Bd4 Be6 Nc3 Bf7 Rh5 Kd3 Rh3+ Kd2 Be7 Ke1 d6 Kf1 d7 Be6 d8Q Bd5 Bd6 Rh7 Qe8 Rh8 Rg4 Rh7 Rgh4 Kg1 Qb5 Rh8 Bg2 h1R Rh6 Rh2 Bh1 Rh7 Nh5 Rf7 Ng7 Rg2 Rh2 Rg4 R6h3 Rh4 Qc1 Rh5 Qa3 Rh8
q2R2Qq/P6K/4nb2/B2b1PR1/2n1Pkr1/1r2q1q1/4BnQN/qQN1NB2 w - - 0 1 illegal: No possible last move
Q2rq3/b2n1R2/Nkb2Q2/2NQ2qB/qn1b2P1/1R1rb3/2P1PB1N/1KR2n2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 bxa4 d4 Qf6 dxc5 Qd8 Kd2 h5 b4 f5 g4 a5 e6 d5 g6 d4 g7 h4 b5 f4 c6 h3 e7 a3 c7 Kd7 e8N a2 b6 Kc6 b7 f3 Bb2 d3 Kc1 a4 Bg2 a3 Nf6 h2 Bh3 f2 Nc3 f1N Qd2 Bd7 c8Q+ Kb6 Nce4 Na6 Ne8 Nb4 Nc5 Nf6 g8Q Bh6 Nf3 Be3 Qe6+ Bc6 Nc7 Nd7 Bd4 Qe8 Bg2 Rh3 N7a6 Rb8 Rg1 h1Q Nh2 Rf3 Rb1 a1B Qf6 a2 Rb3 Rg3 Bd5 Qhe4 Be6 Qd5 Rh1 Qg5 Bf7 Bc3 Bh5 a1B Kb1 Ra8 Qd1 d2 Qb8 Bab2 Qc8 Bc1 Qb8 Bf2 Qc8 Rd3 Be3 Bd4 b8R+ Ka5 Rb6 Bg1 Qb7 Rd8 Qa8 Bf2 Rb7 Bg1 Qe1 d1Q Qd2 Qe1 Rc7 Kb6 Ra7 Qg3 Bf2 Q3f4 Qd1 Bce3 Qd2 Nb8 Rf7 Qfe4 Qc3 Nd7 Qc4 Bf4 Qd5 Bb8 Bg3 Bge3 Bf2 Ba7 Rg1 Ba1 Rh1 Qc4 Rg1 Bad4 Rh1 Qb5 Rg1 Qa4 Rh1 Ng3 Rc1 Nf1
1q2Qr2/b1B5/1R1QNRB1/3nq1q1/P1P1R2b/1K1kn1q1/B3b1rP/2Qr3N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 f4+ Ke4 a4 g5 f6 d5 f5 e5 c6 b5 h6 b3+ Kc3 b2 f7 d4+ Kb3 b4 f6 g4 h7 d3 c7 d2 Kc2 g3 Ra3 b3+ Kc3 g2 Nh3 g1Q Nf4 Bg4 c8B Bc5 f8Q Ne7 f7 Nf5 Qe1+ Ne3 Qd6 d1R f8R Rg8 h8Q Qg5 Ne6 Nd7 Rf6 Be2 Bd2 Rg7 Qe8 Q1g3 Bh3 Ba7 Bf5+ Kf3 Kb4 e4 Nc3 b1Q Ra2 b2 Kb3 Qa1 Bg6+ Nf5 Bb7 b1Q+ Rb2 Nb6 Bf4 Ne3 Qed2 Rc8 Re1 Nbd5 Qc1 Rb8 Qf7 Rf8 Qe8 Nc2 Bc6 e3 Ne4 Rgg8 Nf2 Rg7 Bh7 Rg6 Nh1 Ke4 Qed8 Kd3 Be8 Bf3 Bf7 e2 Qe8 Ne3 Be5 Be4 Bf4 Rgg8 Bfg6 Rg7 Rf1 e1B Be5 Rgg8 R1f4 Bf5 Re4 Bg4 Qa3 Be2 Bc7 Qg2 Qb4 Bh4 Qd6 Q2g3 Bf7 Nf5 Rg4 Qd2 Rf4 Ke3 Rg4 Nc3 Kb4 Qe1 Rd4 Rg2 Rb3 Qg3 Rg4 Qab2 Rd4 Qe4 Bh5 Qee5 Bf7 Nh6 Bb1 Nf5 Ba2 Qb1 Rg4 Qb2 Bg6 Qb1 Qde7 Kd3 Re4 Qdg5 Qc5 Ne3 Qd6+ Bd4 Rb2 Ncd5+ Ka3 Ba7 Rb8 Qb6 Rb7 Qa6 Kb3 Qc6 Rb5 Qb7 Rb6 Qb8
2brBrqN/k2bbn2/6nr/3PqQRP/K1N2q2/R4P2/Q7/BN1rB1R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 a4 b5 d4 e5 Kd2 c5 Kc2 Kc7 Kb3 Kb7 h6 g5 h7 g4 f6 e4 a5 g3 a6+ Ka7 f7 e3 f3 c4+ Ka2 e2 h5 e1Q d6 b3+ Ka3 g2 d5 b4+ Ka4 c3 d7 c2 Rh3 b2 Bb5 b3 Bd2 c1Q Qe2 Nh6 Na3 b1R Nc4 b2 Rg3 Be7 f8Q Nf7 Rg5 Nc6 Ra3 Qe8 d8B Nce5 Qf2+ Qe3 Be1 Ng6 Ne2 g1R Nc3 Be6 Bc7 Rd8 Be5 Qd2 Bd7 Rd1 Nb1 Qed4 Bg7 Qf4 Qe2 Rg8 h8N Qde5 Qc2 Rg2 Qb3 Re2 Qa2 Re3 Rg1 Rb3 Bf6 Rb6 Bb5 Qd7 Bc6 Qc8 Be8 Qa8 Qg7 Rf8 Qh7 Nh4 Qf5 Ng6 Nc3 b1B Bg7 Bd3 Nb1 Bf1 Bf6 Bh3 Bg7 Kb8 a7+ Kb7 Rg5 Qc8 a8R Rbd6 Rb8+ Ka7 Rb2 Qb8 Rbg2 Bc8 Qfc2 Bhe6 Rg1 Qbb2 Bc6 Nh4 Ba5 Qee4 Rb3 Bg4 Re5 Qh7 Ra3 Qg8 Be8 Rh6 Be1 Ng6 Rg5 Bge6 Qf5 Qe2 Bb2 Qee5 Ba1 Bed7+
1n4R1/rQb5/N2B1b2/QNP1P1qn/q3rPbq/BQ3B2/1K6/1R1nqkN1 w - - 0 1 illegal: No proof kernel
Nr5K/Q2Brk1N/2NbnPqq/3n3P/bbR2r1Q/1P4Bn/3Q1B1n/5R2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 e5 Ke3 g5 Ke4 a5 d4 c5 f4 g3 h4 c4 f6 g2 f7+ Ke7 b3 g4 d6+ Kf6 b6 a4 b7 c3 d5 a3 d7 g3 d6 c2 h5 a2 f5 Qa5 d8N Ra7 d7 Qa6 Rh4 Bd6 f8B Nc6 b8Q Nd4 Qd2 Ne7 Nc3 Ne6 Nf3 g1N Bb5 g2 Ng5 Nd5 Nc6 Nh3 d8Q+ Re7 Na4 g1N Nb6 Nf3 Nh7+ Kf7 Na8 Bd7 Qa7 Nh2 Ba3 c1R Bc5 Rf1 Bf2 Be8 Re1 a1Q f6 Qc1 Kf5 e4 Qdc7 e3 Rc4 e2 Qad4 Nhf4 Qca7 Nh3 Qh4 Rg8 Rd1 e1B Bh6 Bd7 Bf4 Rb8 B4g3 Qb6 Qdf4 Beb4 Qd2 Re1 Ba4 Re4 Rf1 Qb1 Bb5 Qe3 Ba4 Ke8 Kg6 Rf4+ Kh6 Kf7 Na5 Be8 Bd7 Qbe4 Nc6 Qf5 Nf8 Qg5+ Kh7 Qd3+ Kh8 Qh6+ Nh7 Qdg6 Nd4 Nf3 Bc8 Ba4 Nc6 Rbb7 Bd7 Nh2 Qad4 Rb5 Qa7 Rb8+
2rN1N1B/knn2K1Q/1r1Pq2b/1b4rN/2b1n3/2PRP1Q1/2Q1B3/B1qr3R w - - 0 1 illegal: No possible last move, all moves rejected
1Rnnq3/1q1N4/1PNR1qQ1/3K1n2/Q2P1Qnb/r1k1Pb2/5NB1/3r1RBr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 h4 g5 d6 c5 b6 f5+ Ke5 a5 b7 a4 b5 a3 d7 g4 h6 a2 h7 g3 b6 f3 h5 g2 h6 f2 Nc3 f4 Ba3 f3 Qb1 Nc6+ Ke4 Be7 b8Q Bh4 Qg3 Nge7 Rh3 Ba6 Rh1 Nc8 Nh3 g1R Bg2 f1N Nf2 Ne3 Qf4 Rd1 Na4 Nf5 Rf1 Bb5 Bb2 Qe8+ Be5 Ra5 e3 Nd8 Qd3+ Kb4 Kd5+ c4 Nc5 Ra3 Rc1 a1Q Bd6 Rg8 h8Q Qf6 h7 Ba6 Qg7 Rh8 Qde4 Bb5 d4 c3 Qg6 c2 Qd3 Ba6 Qb5+ Kc3 Qa4 Be2 Be5 Rf8 h8R Rf7 Rh6 Rh7 Ra1 c1N Ra2 Nd3 Bc7 Ne5 Ra1 Ndc6 d8N Ng4 Nd7 Qg7 Nf7 Nd8 Nfe5 Qf6 Nc6 Qfe7 Qe4 Rh8 Bh2 Qh7 Qf4 Qhe7 Nd3 f2 Bg1 Qf6 Qh7 Qg7 Rd6 Qf6 Qg6 Rh6 Re1 f1Q Ra2 Qf2 Rf1 Qe1 Nf2 Qd2 Ra1 Qd3 Rb1 Qa6 Rb5 Qb7 Ra5 Bg5 Ra8 Rh1 Rb8 Bh4 Qa6 Kd2 Qa8 Kc3 Qa4 Bf3+
8/3KnqQ1/1P3BPr/1R1BNP1b/n1R5/1QR1rNkq/4n1bb/q1Q1Nb2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 b4 e5+ d6 h5 g4 a5 f6 a4 b6 h3 g5 h2 b5 e4 d4+ e3 d5 h4 b7 a3 g6 h3 f7 a2 Na3 Rh6 Qb3 Nd7+ Kc6 Qe7 b8R Nb6 d7 Ba6 d8N Na4 Bb2 e2 d6 e1Q d7 Q1e3 Rc1 a1Q Bg2 Ra7 f3 Kg3 f4 Rb7 b6 Bf1 f5 Bg7 f8Q Be5 Be4 Qf7 Bd5 Bf4 Rc4 Ne7+ Kb5 c5 Bf6 Rc7 Qg7 Rc6 Ra8 Re6 Ra5 Qec3 Nc6 Re3 d8Q Bb8 Bg2 Be5 Nf3 Bb8 Rg1 h1B Qe8 h2 Nc2 Bf4 Qc8 Bb8 Bh3+ Bhg2 Nce5 h1B Nce1 Qd3 Ka6 Bc7 Kb7 Bb8 Rc3 c4 Rb5 Bd6 Rc2 c3 Qc6 Ba3 Kc7 Bd6+ Kd7 Bc7+ Nd4 Bd6 Bg4 Bb8 Bf3 Bd6 Rc1 c2 Bd5 Bb8 Ndf3 Bc7 Rb1 c1N Rb4 Ne2 Qc1 Qe4 Rc4 Qh4 Qa2 Qg4 Rb5 Qh3 Qb3 Kf2 Nc6 Bh2 Nce5 Kg3 Rc3 Kf2 Nh4 Bf3 Rg4 Bhg2 Rgc4 Bh5 Nhf3 Kg3
2n1B3/2bNR1Qq/kP5P/2B3n1/bbNR1b2/P1R2K1b/1QB1r3/4Nnbr w - - 0 1 illegal: No proof kernel
8/P1Q1nnnN/2QPB2N/1K3N1q/nR2Qr1B/1b6/1Pr3Rn/1knB1bb1 w - - 0 1 illegal: No proof kernel
B1r1kB2/r1R2nQ1/1BPb4/rNQ3bK/1PnQ1PRR/3r3b/6N1/b1q4r w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 a5 Kf3 e5 Kg4 d5 b4 g5 h4 a4 c4 d3 f4 d2 h6 d4 c5 e4 h5 d3 h7 a3 b6 e3 b7 e2 h6 e1R Bg2 a2 Rh4 Qc7 Qc2 d1R Kh5 d2 f6 g4 Nf3 g3 Na3 Re7 Nb5 Rh1 Ne1 d1R Be3 Nd7 b8R Ra5 Rc1 a1B Ba8 Ne5 Ng2 Nc4 Rb7 Qc6 Rc7 Rd3 Rg1 Bh3 Qc3 Red7 Qe5+ Be7 f7+ Kd8 f8B Bg5 Qd4 Ke8 Bf2 Ne7 Qg7 Nf5 Qc3 Rg8 h8Q Nfd6 h7 Nf7 Qhd4 Re7 h8Q Rd7 Ne3 g2 Qhg7 Re7 Rd1 g1B Ng2 Qd5 c6 Qc5 Qd5 Qe3 Qcd4 Qc1 Q5c5 Rd7 Be3 Bf2 Rg4 Bfh4 Rf1 Be7 Rf3 Bhg5 Rfg3 Bd6 Rh4 Rd8 Rgg4 Rc8 Qh6 Rg6 Qhg7 Re6 Bg1 Re7 Qc3 Re2 Qf5 Ra3 Bb6 Rea2 Qc5 Ra7 Q3d4 R2a5
1R2KQ2/b1n2Q2/PrQr2Bq/1b4B1/P5N1/1R2bqnk/P1b1R2N/5Nbb w - - 0 1 illegal: No proof kernel
Q4b2/r2rRP2/1P2Q1r1/N2B2n1/k1n3B1/nN2nP2/b1Q1Nb1K/q1Rb2B1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 a5 d4 c5 f6 h5 g5 e5 b6 h3 g6 c4 b5 a4 g7 h4 f7 e4 b7 c3 d6 c2 d5 a3 b6 e3 Bd3 e2 Bg5 c1B Ra2 h2 Nf3 h3 Qb3 Nc6 b8Q Rh7 Bf4 Qf6 Bg5 Nh6 g8B Ng4 Qc2 Ra7 Qa8 Be3 Nd4 Nce5 Nd2 Nc4 N2b3 Qe5 Ra1 a2 Rc1 a1N Rg1 h1R Bf5+ Qe6 Rf1 Rg1 Bf4 Bb7 Bh2 Rg3 Bg1 h2 Be4 h1B Bf5 Nh6 Bg4 Nf5 Qd1 Ba6 Qc2 Qf6 Qc6+ Kd8 d7 Bf3 Qe6 Bc8 Bh5 Rg6 Bg4 Bb7 Qc6 Ke7 d8N Ba8 Qc8 Kd6 N8c6 Bb7 Nca5 Bc6 Nd2 Kc5 Qe6 Kb4 N2b3 Ka4 d6 Rh2 d7 Bcd5 d8Q Rh8 Qa8 Qe5 Nb5 Bd4 Bh7 Nfe3 Qef5 Bdc5 N5d4 Rhg8 Qfc8 Rd6 Qe8+ Rdd7 Be4 Rg6 Qe6 Nd6 Kd2 e1N Ne2 Bc4 Bd5 Qf6 Qcf5 Nac2 Qfe4 Na3 Qc2 N1g2 Rfd1 Nf4 Ke1 Nh3 Rd4 Ng5 Re4 Qa1 Re5 Be4 f3 Bf5 Kf2 Bfd3 Qa2 Bc2 Kg3 Bd1 Kh2 Bd4 Nd2 Bcb3 Qc2 Ndc4 Re4 Kb4 Re5 Ba2 Ndb3 Kb5 Qf6 Ka4 Re7 Ng2 Qe5 Bf2 Qe6 Nge3
2b4K/Q4r1R/B2b2Rn/1Q2n2n/Pqb1P1b1/2n1qP1r/BN4Q1/1N2k1BN w - - 0 1 illegal: No proof kernel
b1N1NrBQ/1k4qQ/n1r1bbr1/1P1PBK2/6R1/4N3/1P3RQr/qn3bR1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 c5 Ke4 Kc7 f4 a5 d4 e5 g4 h5 f6 h3 d6+ Kb7 g5 h4 g6 c4 d7 c3 f7 c2 f5 a4 g7 a3 f6 a2 Bc4 h2 Kf5 h3 Qe1 e4 Bf4 c1R Nc3 e3 Qe2 Na6 Nd1 Be7 f8Q Qc7 f7 Nf6 g8Q Nd5 Nf3 Bf6 Nd2 Nc3 Be5 Nb1 Rg1 h1B Rg4 h2 Qh7 Bd5 Ne4 h1B Qg2 e2 Ne3 e1R Qfg8 Rb8 f8R Bf7 Be6 Rc6 d8N+ Kb6 Qgg7 Rg1 Nd6 Bb7 d5 Ba8 Ne8 Rc8 Qf3 Bg2 Nb7 Bf1 Nbd6 Rb8 Nc8+ Kb7 Qg2 Qd7 Qhg8 Rh2 Q8h8 Qe7 Rg8 Qf8 Qgh7 Qg7 Rf4 Na3 Rd1 a1Q Rf2 Nb1 Re1 Qh6 Rg4 Qg7 Rgf4 Bh5 Bg8 Bf7 Qh1 Rg6 Rg4 Bh3 Rg1 Bf1 Nb6 Rbc8 Qg2 Rb8 Nc7 Rd8 Nc8 Rf8 Ne8 Be6+
1Qb1n2B/3nRq1q/6Nk/P2nR1rB/3n4/BN3rPQ/P3KbRN/1bb5 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 d4 Kf7 f4 Kg7 d6 b5 g3 c5 d5 h5 f6+ Kh6 d7 e5 d6 h3 f7 e4 f5+ e3 f6 h4 Qf3 c4 Ke2 h2 Ke1 h3 Na3 b4 Kd1 c3 Qe4 b3 Nc2 b2 Qg2 b1B Be2 Qc7 d8R Ne7 d7 Rg8 Nd4 Nd5 Bh5 c2+ Ke2 Rg5 Re8 Bc5 d8B Nd7 Ba3 c1B f8N Ra6 f7 Rf6 Nb3 Rf3 Ng6 Qf4 Ke1 e2 Re5 Qf6 f8Q+ Qg7 Qd6 Qf7 Qb6 Rd3 Nf4+ Kg7 Qc6 Bb2 Re8 Bc2 Bf3 Bb6 Rc1 Bb1 Rc2 Bc1 Qc7 Re3 Kf2 e1N Qb8 Kh7 Rd2 Nc2 Bf6 Rd3+ Kf1 Be3 Bd1 Nd4 Nf3 Rc3 Rg1 h1N Re7 h2 Ng6 Nf2 Bh8 h1Q Re2 Ng4 Re1 Qh5 Qh3 Bf2 Nh2 Ngf6 Rg2 Ne8 R1e5 Qh6 Bg4 Rf3 Bh5 Qhg7 Nh4 Kh6 Ng6 Bfe3+ Ke1 Qh7 Kd1 Bg1 Ke1 Bf2+ Kf1 Nc2 Ke2 Nd4+
r2BBr1Q/1Q1n4/PNBk1n1N/K3Rb2/1b2r1R1/b5P1/R2P3q/2qbr2Q w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kd7 f4 b5 f6 c5 f5 e5 g3 h5 f7 c4 d6 b3 a5 c3 g6 c2 f6 b2 a6 h4 g7 b4 Nc3 b1B Nge2 b3 Bg2 h3 Nd4 e4 Nd5 e3 Ba3 c1B Ra2 e2 Nf5 h2 Nb6+ Ke6 d7 b2 Nh6 Bc5 f8R Be7 f7 Qc7 d8Q Qc2 Qd5+ Kf6 Re8 Bh3 Qb7 Ke6 f8Q Bg4 Bc6 Nf6 g8B+ Ke5 Be6 Nbd7 Bf7 Qc3 Qg7 Rf8 Qh8 Bbf5 Bb4 b1R Ba5 Bb2 Rf1 Kd6 Rf4 Bh5 Rg4 h1Q+ Kf2 Qc4 Ke3 Qh2 Qh1 Qc1 Bg6 Ba3 Kd4 e1R Bf7 Bd8 Re5 Be7 Be8 Re4+ Kd3 Qf1+ Kc3 Rbe1 Rg8 Bd1 Rg4 R4e2 Kc4 Qfg1 Kb5 Re4 Bc3 Qf1+ Ka5 Qc4 Bd4 Qc1 Be3 Bc5 Bg5 Ba3 Qa7 Nh7 Rd5+ Ke6 Qb7 Bec5 Bd8 Nhf6 Re5+ Kd6 Rg7 Bh3 Rgg5 Bf5 Rg4 Bcb4+
N2NbBB1/2qQ3P/P3q2b/R1nr2R1/2R5/4r1BP/b1Nr4/bQ1K1krn w - - 0 1 illegal: No possible last move, all moves rejected
3N4/1bb1QnPq/4n2P/B1bN1r1R/1r6/1NPRB2q/1Qq2qB1/1bQ1K1k1 w - - 0 1 illegal: No possible last move, all moves rejected
3kN2N/3b1PBR/1n1RQn2/b1B2K2/8/1qNQ1qrR/BPP3q1/rbb1q3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 a5 Ke4 g5 h4 d5+ Kf3 g4+ Kg3 a4 f4 a3 b6 d3 h6 d2 f6 a2 h7 e4 h5 d4 f5 e3 Kf4 g3 h6 e2 b7 e1B Rh3 g2 Na3 d3 Nb5 Bd7 Ne2 g1Q Nec3 Qdb6 f7+ Kd8 f6 Qg2 Nc7 Qb3 Ne8 Ra7 Qg4 d1B Be3 d2 Bc5 Be2 Rd1 a1Q Qe6 Bc4 Kf5 Qc1 Be2 Ra1 Bf3 Bd6 f8B Bf4 f7 Nf6 Bd5 Rg8 h8R Rg3 h7 Bg5 Bg7 Qb1 Rg8 Be3 h8N Bf4 Rc1 d1Q Rf8 Qdf3 Rd1 Bed2 Rdh1 Qe1 Rh7 Ba4 R1h3 Nbd7 Rg8 Nb6 b8Q+ Nc8 Rf8 Bd7 Qb5 Nb6 Rg8 Qa4 Rf8 Ba2 Qd3 Bb1 Ba2 Qb3 Rg8 Qgg1 Bh6 Qgf2 Rg6 Q2g2 Bg7 Bc1 Rg4 Bfd2+ Rf4 Qa8 Rd4 Qab7 Rd6 Qa8 Ne4 Ba5 Nc3 Qaf3+
1Q1Rq3/R3P2r/1bQ2qQP/KN2n2N/4nB1P/1B3kbn/bB2n2r/R2b4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 Ke5 h6 c5 d6 a5 d7 f5 d3 g5 Kd2 g4 Kc3 c4 b6 f3 b5 f4 b7 g3 b6 f2 Bd2 a4 Qb3 a3 Qa4 g2 Qc2 a2 Bc1 f3 Ba3 Kf4 d4 Nf6 d5 Qe8 d8Q Nbd7 b8B+ Ne5 b7 Rh7 d6 Bg4 Kb4 c3 Bc4 f1Q Qc8 f2 Bb3 Bd1 Ne2+ Kf3 Ng3 g1N Nh5 Nh3 Qc6 Qa6 Re1 f1B Bb2 Bc4 Na3 Bg7 Qb1 c2 d7 c1N d8R Ne2 Nb5 Qb6 Bc7 Rc8 b8Q Bf8+ Ka4 Bc5 Rg1 Bf2 Rg7 Bg3 Bd6 Bg8 Ra7 Bf7 Qcb7 Rc2 Qc6 Qd4+ Ka5 Bc4 Qc1 Qf2 Qg5 Rd2 Rc1 a1B Qg6 Bg8 Bba3 Bd4 Bb2 Bc4 Ra1 Bc5 Bc2 Ba2 Bb3 Neg4 e5+ Ne4 e6 Ne5 e7 Bb6+ Kb4 Kg2 Bc7 Qf6 Ka4 Kf3 Kb4 Nc4 Bf4 Ne5 Ka4 Neg1 Kb4 Rh2 Ka4 Ne2 Kb4 Bc5+ Ka5 Bb6+
4Nr1n/3P1k2/n3r1Rq/B1N2B1b/Q1rPr2Q/Rn4bQ/1R1PN3/n1qK4 w - - 0 1 illegal: No proof kernel
1b2nN1r/2B1qq2/3Nb1Q1/K5nB/4QP1k/P4Rr1/rbRpR1Pq/2Q2N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 c4 e5 f4 d5 f6 Kg6 f7 h5 c6 b5 c5 b3 Kc3 d4+ Kb4 d3 c7 b2 Qf3 h4 Nh3 e4 Qf2 Kh5 g6 e3 g7 e2 Rh2 e1B+ Nd2 b1Q+ Bb2 Nh6 g8Q Bd6 f8N Nf7 Qe3 Ng5 Qee6 Nd7 Nf2 h3 Qgg6+ Kh4 Qee4 Qe7 Be2 Nf6 Bh5 Be6 c8Q Ne8 a3 Bb8 Qcc6 Qa2 Be5 Qd5 Rh1 h2 Rf1 h1Q Ra2 Qh2 Bc7 Ra7 Rb2 Rb7 Ka5 b4 Nb1 Qf5 Re2 b3+ Nd2 b2 Qe3 b1R Qce4 Bd5 c6 R1b3 Qc5 Qfd7 Qc1 Be6 Qd4 Rh6 Bb6 Qf7 c7 Qd6 c8R Rh8 Ne4 Qde7 Rc2 Rb2 Qe5 Ra2 Bc7 Rb3 Nd6 Bf2 Qee4 Bd4 Rff2 Bb2 Nf1 d2 Qb7 Qg1 Qbe4 Rg3 Rf3 Qh2
1b1r1n1K/BBNbN3/4R1r1/7k/qPP1Qb1p/2N3R1/nP1R1nB1/Q1q2r2 w - - 0 1 legal: proof: h4 c5 e4 b5 d4 cxd4 a3 g5 hxg5 f5 exf5 b4 axb4 Bb7 Kd2 Ba6 Ke1 Bc8 Ke2 Kf7 Kd3 h5 Ke4 e5 c4 a5 g4 d6 f4 a4 g6+ Kg7 g5 d3 Nh3 h4 Nc3 a3 Rh2 d2 Bg2 a2 Qc2 d1R Be3 Rg1 Re1 a1Q Ba7 Rh6 Qb1 Qa6 Qa1 Rf1 Kd5 Nd7 Ke6 e4 f6+ Kh8 Kf7 e3 g7+ Kh7 f5 e2 Bb7 d5 Nf4 d4 Nfd5 d3 Nc7 Ne7 g8N Nd5 Ne7 d2 Rh3 d1N Rg3 Qa4 g6+ Kh8 g7+ Kh7 Bb8 Rg6 g8B+ Kh6 Ba7 Kh5 Bh7 Rh6 Kg8 Nf2 f7 Rg6+ Kh8 Bh6+ f8Q Bf4 Qe8 Nf8 f6 Bd7 f7 Rb8 Rd1 e1B Rd2 Rc8 N7b5 Qb6 Nc7 Rd8 Bg8 Qe3 Bh7 Rc6 Be4 Rf6 Bg2 Rg6 Re2 Qc1 Re6 Nh7 f8R Bed2 Rff6 Nf8 Re2 Bd6 Rfe6 B2f4 Nb1 Nc3 Rd2 Na2 Nc3 Bc8 Qc6 Bd7 Qe4 Nd3 Na6 Bb8 Nc7 Nf2
1qR2Bb1/4Kr2/k1q4R/1bB3Qp/BrQN3P/q2nP1Pb/6Q1/n1N1N1n1 w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 Bb7 axb5 Ba6 f4 gxf4 b6 Qc8 c3 Qd8 b5 Bb4 cxb4 Bc8 Kd2 c5 Kc3 d5 h4 Kd7 b7 Kc7 e6 Kb6 e7 a5 e8Q f5 e3 h5 g3 a4 Nd2 c4 Kd4 c3 Ke5 f3 Bg2 f4 Nb1 d4 Bd2 f2 Qf1 c2 Qf7 c1Q Q7c4 a3 Ne2 d3 Bc6 a2 Na3 f3 Nc2 Ra7 Ne1 Nh6 Qg2 Qa3 Nc1 Na6 b8B f1B Bd6 f2 Bf8 Bh3 Rg1 Qd7 Kf6 Nf5 Bc3 d2 Bd4+ Nc5 Rb1 Kc7 b6+ Kc8 b5 d1B Rh1 Nd3 Bdc5 a1N b7+ Kb8 Rb2 Nd4 Rd2 Qc8 Ke7 Ne2 Rh2 Kc7 b8N Ng1 Rh1 Qca6 b6+ Kc8+ b7+ Kc7 Qgd5 Bb3 Ba4 Qc6 Qg2 Be2 Ra2 f1Q Rb2 Ba2 Rb6 Qf4 Rh2 Rg8 Ra6 Rg4 Rb6 Qg6 Nc6 Qgh6 Nd4 Qc6 Qcd5 Bf1 Qg5 Bg8 Ra6 Qd5 Rh6 Qc6 Qh1 Kb8 Rc2 Be2 Qg2 Kc7 Bd6+ Kb6 Bc5+ Ka6 Rc3 Nf2 Rc2 Bb5 Rc4 Nd3 Rc3 Ra8 b8Q Ra7+ Qc7 Rb7 Qd7 Qb8 Qc7 Bbc4 Rc2 Rb4 Qcf4 Bb5 Qf7 Rf4 Qc4 Rf1 Qe6 Qbb6 Bd6 Qe4 Rc8 Qec6 Bc5 Qb8 Qc4 Rf7+
n1B3q1/2nQK1r1/1Q6/bb3PBN/Qn1rNbR1/4PNPR/3r1B1p/qk6 w - - 0 1 illegal: No proof kernel
NR2r3/1r3Q2/2R1BK1b/1p1QqP1Q/NBb5/PB3nkr/2nP1Rn1/4bq2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f6 Kf7 Ke2 Kg6 Ke3 Kf5 Kd4 Kf4 g4 h5 d6 b5 g6 e5+ Kd5 c5 g7 e4 g5 e3 d7 h4 Ke6 e2 f7 e1B Na3 c4 g6 b3 Bh3 b2 Qh5 b1N Rh2 Ne7 g8B Nf5 g7 Qc7 Kf6 Ra7 d8Q Nc6 f3 Ne5 Rf2 Kg3 f4 Ne3 Qd7 c3 Nc4 c2 Ba3 c1Q Bb4 Nf3 Nb6 Na3 Na8 Ng2 Qe6 Q1c4 Ne2+ Kh2 Nc3 Qf1 Na4 Kg3 Qef5 Qb8 Rc1 Be6 Rc6 Nc2 a3 Rb7 Bg4 h3 Qc5 Bd6 f8R h2 Rfc8 Qc7 Rb8 h1R Bf7 Rc8 g8Q Re8 Qgh7 Bf8 Qd4 Bf5 Bb3 Be6 Q7f7 Bc4 Qdd5 Rh3 Be6 Bh6 f5 Qe5+
5rR1/3n2q1/2R3P1/rBN4N/QBBk1P2/1pnN1bbb/3Kr1nP/2R1Q1q1 w - - 0 1 illegal: No proof kernel
b1KN3B/4R1N1/2QPqPr1/3B1Pk1/1R1qnr1p/r2N2Bn/1b1Q1R2/3n3q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 a5 Kc5 h5 b4 e5+ d6 c6 d4 a4 f4 a3 g4 h3 d5 e4 b6 h2 b7 h4 g5+ Kg7 f6+ Kg6 b5 e3 b6 e2 Bb2 e1N Qd2 a2 Bc4 Rh6 Ne2 Ra7 Ng3 Qe7 Nc3 Ra4 Nh5 Nf3 Ne4 Ng1 Nf2 Ra3 Re1 a1Q Nd3 Qe6 Ng7 Nh3 Rhf1 h1Q Rf2 Ne7 d7 Qd1 d8N Nf5+ d6 Qa4 Bd5 Ne3 Bd4 Nd1 Re5 Qg8 Re7 Qe6 Nf5 Nb2 Qe1 Kh5 g6 Qh2 g7 Qg1 g8R Qg2 Rg4 Nd1 Be5 Rg6 Qa5 Bh6 Qc3 Bg5 Ng7+ Kh6 Qb4 Qh2 Qa5 Qg2 Qa8 Bd7 f5 Qf4 Qa4 Qh1 Qb5 Qa4 Bg3 Bc1 Qa5 Bb2 Qd2+ Rg5 Nh5 Qa7 Rb4 Be8 Qe1 Rg6 Ng7 Kh7 Qd2 Nd7+ Kc4 c5 Kb5 Ne3 Kc6 Kh6 Kc7 c4 Nh5 Kg5 Kc8 Kg4 b8Q Nd1 b7 Nc5+ Kc7 Ba4 Qc8 Bc6 Qd7 Qb6+ Kc8 Qa7 b8B Ba8 Ng7 Qb6 Ne8 Kh5 Ba7 c3 Nc1 c2 Nd3 Nb7 Kb8 Qc5 Qc6 Qc4 Be3 Nc5 Bh6 Qf4 Bg7 Kg5 Qe1 Qfe4 Bh8 Qe3 Rf1 Qd4 Ng7 Ne4 Qe2 c1R Qh2 Ne3 Qd2 Re1 Rf3 Re2 Rf1 Rf2 Kc7 Rf3 Rf2 Rf4 Kb8 Nd1 Kc7 Qg8 Kc8 Qe6+
3Q2b1/3RBr2/BPQKn1P1/2RQP3/nB1p2qn/8/1rR1qbNk/2N1qb2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 c4 Kg3 e4 h5 b4 f5 b6 a5 b7 d3 g6 h4 e6 d2 g7 a4 c5 f4 b5 h3 b6 f3 c6 f2 e7 h2 e8R a3 e5 a2 c7 Bc5 Re7 Nc6 b8B Nh6 Ba6 f1B Ba3 Rf8 Nf3 Bf2 Kd6 Rf7 Ne1 Qg8 Bb4 Nd4 Nc3 Ne6 Rc1 a1N Rc2 Nb3 Na2 Nbc5 Nc1 Na4 Rc5 Bb7 c8Q Bd5 Qc6 Ba2 Rg1 h1Q Qdf3+ Kh2 g4 d1Q+ Qfd5 Ra7 g5 Qe2 Ng2 Qc8 g8Q Bc4 g6 Ba2 Qc4 Nf5+ Kd5 d6 Rd7 Nh4 Bc7 Bb3 Bd8 Ra8 Be7 Ra7 Bb7 Ra5 Ba6 Rb5 Qd8 Ba2 Bc3 Rb2 Bb4 Bb3 Qcc7 Ba2 Kc6 d5 Kd6 d4 Qd5 Bb3 Qcc6 Bc4 Ne1 Qhe4 Rg3 Q4g4 Ng2 Qe1 Rc3 Ba2 Bb5 Qa6 Be2 Qd3 Rc2 Qdf3 Bc4 Qfe2 Ba6 Rf4 Bc8 Ng7 Qe4 Bg8 Ba6 Ne6 Qed5 Rf7
1qqr1b1B/nB3PqK/1n3PQ1/nr6/2R1PQ1N/1R1p1Q2/k3bB2/1R1bN3 w - - 0 1 illegal: No possible last move
1q4q1/1B1rP3/5R1N/1N4r1/pKQQbBn1/1b4Pk/2nPq1RN/Bn2b2Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 b4 c5 d6 Ke6 g6 f5 e5 a5 g3 h5 b6 f3 d7 a4 b5 f4 g7 Kf5 b7 Kg4 b6 c4 e6 c3 Rh2 c2 Nc3 h4 Rh1 h3 Rh2 Nh6 g8N Ra5 Ra2 Rg5 Nd5 Na6 b8Q Bc5 e7 Nb4 Rg2 h2 b7 h1B Bb2 c1N Ba6 Ne2 Nc7 Nc3 Ra3 Nb1 Ba1 Bf2+ Kf1 Qf8 d8Q Be6 Qd4 Nc2 Qc8 Be1 b8B Qe8 Qc1 f2 Nf3 Kh3 Ke2 Ng4 Kd3 Bb3 Nh6 Qg8 Nh2 f3 Nb5 f1Q+ Re2 f2 Bb7 Qg1 Bf4 f1Q Qcc4 Qgg2 Qd1 Q2d5 Qc1 Qe5 Qd1 Qg1 Rg2 Qeb8 Qf3 Ba2 Rb3 Qf2 Rb2 Bb3 Qfe4 Nba3 Kc3 Qe2 Qec6 Qg6 Qf3 Rd8 Qf1 Qg8 Rb1 Nce3 Kb4 Rd7 Rc1 Nb1 Rc3 Nf5 Rf3 Nfe3 Bc7 Qf7 Rf6 Qe6 Bf4 Qeg8 Rf2+ Bg2 Qh1 Be4 Rg2 Nc2+
n1k1r1Qq/q2pbB1P/N4PqN/2B3RQ/r2Q4/2bbB3/4n2P/nN1K1R2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 e5 f4 g5 c4 a5 h6 a4 c5 a3 b6 a2 b5 e4 b7 e3 c6 d3 f6 g4 c7 e2 h7 g3 f7+ Ke7 f5 g2 b6 Na6 b8N Nh6 Nf3 g1Q b7 Qa7 f6+ Kd6 Bh3 Be7 f8B Nf5 Nh4 Nd4 Be6 Qe8 Rf1 d2+ Kf2 Rg8 Bf7 e1B+ Ke3 Qd8 Qh5 d1Q Bd2 Qc2 Nf5+ Ke5 Nh6+ Kd6 Rg1 Qg6 Rg5 Ne2+ Kf3 Rh8 Be3 Bc3 Kf2 Be5 Ke1 Bc3+ Kd1 Rg8 Nd2 Rh8 Rc1 a1N Nb1 Qe8 Nc6 Rg8 b8Q Bb7 c8Q+ Nc7 Nb4 Be4 Qb5 Bd3 Na6 Qd8 Qb2 Kc6 Bg7 Re8 Bf8 Kd6 Qcb8 Kc6 Q8b3 Qdb8 Q3a2 Qd8 Qd2 Kb7 Qd5+ Kc8 Qd4 Rb8 Qa2 Rb4 Qac4 Ra4 Qcd5 Beb4 Bc5 Na8 Qg2 Re4 Qgg4 Qh8 Qe6 Ba5 Qe8+ Bd8 Qg8 Re8 Rc2 Ng1 Rf2 Be7 Rf1 Ne2
RR6/nqP2P2/kB2B1b1/1n1K1Q1b/N1n4p/NP1Q1B2/4rb1N/Rqqr4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 e5 Kc4 d5+ Kd3 Kd7 c4 Kc7 g4 Kb7 f4 h5 g6 a4 f6 a3 f5 h4 f7 a2 g7 Na6 b6 Qe7 g5 Nc7 c5 Ka6 f6 Nb5 b3 Qb7 c6 Bc5 f8Q Ne7 c7 Nc6 g8N Nca7 Bg2 Bf5+ Be4 Rb8 g6 Rd8 g7 Bg6 Ne7 Rd7 Qc8 Re8 g8B Rdd8 Nf3 Rd6 Kd2 d3 Qf5 Bf2 Na3 d4 Nc8 Ree6 Bc6 e4 Nh2 Rd7 Qc2 Re5 Be6 e3+ Kd1 d2 Ke2 d1N Kf3 d3 f7 e2 Be3 d2 Qcd3 e1Q Rf1 Red5 Ke4 Nb2 Rh1 d1B Rg1 Bgh5 Rg8 Bg6 Rh8 Nc4 Rd8 Qb8 b7 Re7 Nb6 Bdh5 Na4 Qc1 Bb6 Qa8 b8R Qb7 Ra8 Qb1 Rdb8 Re8 Qc2 Rd1 Qd3 Qc1 Rb1 a1Q Kd5 Qab2 Ra1 Re7 Bc8 Re3 Be6 Qbb1 Kc5 Qc8 Bf3 Re2+ Kd5 Qb7+
3N2br/kr2Br2/1R2QQ1b/3n3P/1Kn1B1R1/n1nq1B2/1P1PNp1n/4N2R w - - 0 1 illegal: No proof kernel forced: bxDB
R4b2/b1N1kB1n/3q1R2/1prP2QQ/1r3b1B/5bRP/P2N2bB/K1nN2r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 e5 Kd2 c5 Kc2 g5 Kb2 b5 f4 g4 h6 e4 f6 g3 d6 c4 h7 g2 h3 b3 f7+ Kd7 f5 e3 f6 e2 Nc3 e1B Bf4 Ra4 Qd2 Qc7 Nf3 g1R Bh2 Bb7 Qg5 Rb4 Nd1 Na6 Nd2 c3+ Kb1 b2 Bc4 Kd8 d7 Bg2 Be6 Nc5 d5 Bh6 f8N Bf2 f7+ Nf6 Nb3 Bd4 Nd2 Ke7 d8R Nd3 Ra8 Rg8 h8Q Nc1 Qh7 Bb6 Qhg6 Ba7 Q6h5 Rf1 Rg1 Qd6 Nf3 Rg7 Nd2 Bf3 Rg3 Rg1 Bf5 Rg8 Ne6 Rc8 Bg6 Rc5 Nc7 Bg2 Qf4 Nh7 f8B+ Kd7 Bg7 Ke7 Bf7 Bf3 Be5 Bf8 Qfg5+ Qf6 Qf4 Nb3 Na6 Qd6 Nc7 Bg2 Bh8 Bf1 Ne3 Be2+ Kc2 Bg4 Rf1 Be2 Rff3 Bf1 Nd1 Bg2 Kd3 c2 Bf6+ Kd7 Bh4 b1B Qfg5 Nc1+ Ke3 Bb6 Rf6 Ba7 Nc4 Ke7 Kd2 Nd3 Kc3 c1B Rg4 Bf4 Rg3 Ra4 Kb3 Nc1+ Kb2 Bbe4 Ka1 Rb4 Nd2 Bef3
1Q6/2KqN1nn/2BB2rP/k3n2B/2rN1bP1/1RP1R3/nbR1p1b1/3Q2Qn w - - 0 1 illegal: No proof kernel
2rrB1B1/2rrb1n1/3q1PPk/2nbn3/N2BQ3/QpR1R1Nr/2K1P2N/3Q4 w - - 0 1 illegal: No possible last move, all moves rejected
1b2NK2/4N2P/b1BBrQ2/2N1RPR1/bk1nR3/2n2Qnq/2P1p2Q/3n1rn1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 Ke7 Ke4 Kd6 b4 g5 f4 a5 h4 g4 h6 a4 h5 a3 h7 d3 f6 g3 Kf5 d2 Kg6 e4 Kf7 g2 h6 a2 b6 e3 b7 Bg7 b5 Kc5 b6 d5 f5 d4 Rh5 d3 Nh3 g1N Bg2 Ra4 Nc3 Ra7 Bc6 Nd7 b8N Ba6 b7 Nb6 Qf3 d1B Nf4 d2 Rg5 Nd5 Nd7+ Kb4 Ne4 Nc3 Nd6 Bde2 b8Q+ Beb5 Ng6 d1N Ne7 e2 Bf4 Bf8 Qc7 Ba4 Ne8 Ra8 Nc5 Qd3 Bd6 Bg7 Rc1 a1N Rb1+ Nb3 Ra1 Nd4 Rb1+ Ka3 Rb4 Rb8 Rc4 Rb6 Qb8 Nb3 Re4 Nd4 Qc8 Bf8 Qe6 Kb4 Qe5 Bg7 Qh2 Qe3 Kg6 Bf8 f7 Nf6 Re5 Bg7 f8R Nfe4 Kf7 Ng3 Re4 Rg8 h8Q Be5 h7 Rg6 Rg8 Re6 Kf8 Rb8 Qf6 Rb5 Rgg4 Qh6+ R8g7 Qh3 R7g5 Rb8 Bc7 Bd6 Re5 Ra8 Rge4 Rd8 Bb6 Bb8 Bc7 Rd7 Ng8 Rg7 Bd6 Rg6 Ne7 Rh6 Ng7 Rh4 Ne8 Rf4 Qfg2 Rf2 Qf3 Rf1
K1b3R1/N1b2PRq/BQBnN2P/1R1pn3/8/2b3N1/r1QP1nk1/rBb2b2 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 Ra6 bxa5 Ra7 Ba3 Ra8 Bb4 cxb4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kd5 Kh4 f4 b5 c4 g5 a4 e5 c5 b3 f6 e4 f7 e3 h6 g4 a6 e2 c6 e1B a5 d6 c7 b4 f5 g3 h7 b2 a7 g2 f6 b3 a6 Bh3 c8R Qb6 Ra5 Bg4 Rb5 Nd7 Nc3 b1N Nge2 Kh3 Qc2 b2 Rg1 Ne5 Ng3 Na3 Rc7 Be7 f8N b1B Ne6 Nh6 f7 Rhb8 h8Q Nac4 Qd8 Qf2 Rcb7 Qf5 Qb6 Qh7 Be2 Re8 Rb8 Bf2 Rd8 Bd4 Rc8 Rh8 Rg8 Bf5 Bf1 Nhg4 Rg7 Nf2 Rg8 Ng6 Kc6 Nge5+ Kb7 d5 Bd3 Ba3 Rg7 Rag8 a8B Bc1 a7 Rc8 Rg8 Rc6 Kb8 Nd6 Bb7 Rc4 a8B Ra4 Bc6 Ra1 Bab7 Ba2 Ka8 Bc4+ Ba6 Ra2 Nc7 Bc8 Ne6 Ra1 Be4 Bf1 Bg6 Kg4 h4 Kh3 h5 Ra2 Nb1 Bc3 h6 Kh2 Na3 Ra1 Rf8 Rg8 Be4 Rg4 Bg6 Ra4 Rg8 Ra2 Rb4 Ra1 Nb5 R4a2 Na7 Bb5 Rd1 Bf1 Rb5 g1B Re1 Kg2 Re4 Nd1 Rg4 Be3 Bf5 Nf2 R4g7 Bg5 Qb3 Be7 Bb1 Bd8 Qc2 Bc7
QQ4B1/5p2/q1P3KB/bnn1r3/2R1r3/2nNQP1N/1b1PB1kn/2RrR2n w - - 0 1 illegal: Other
2b5/qQPbNk2/4nBRR/3P1NK1/p4R1r/n1BNr3/P1n1bB2/1bQ1b3 w - - 0 1 illegal: No proof kernel
2Q3n1/2P3qn/P1Nk1rpR/3NR1P1/BrRN1Kb1/r3Bb2/Q1r1B3/3n3r w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g6 b4 axb4 h4 Ra4 h5 Ra7 h6 Bg7 hxg7 Ra8 Kd2 h5 Ke3 e5 g4 Ke7 f4 d5 c4 b5 a4 e4 g5 b3 f6+ Kd7 f5 h4 c6+ Kc7 f7 b4 f8Q h3 c5 h2 a5 b2 f6 d4+ Kf4 b3 f7 e3 a6 d3 Ne2 d2 Ra4 Qd7 Nbc3 b1B Qc2 d1N Rc4 b2 Nd4 e2 Be3 e1R Be2 Rh3 Qb3 Rg1 Qa2 Be4 Qe8 b1R f8R Bf3 Rf5 Rb2 Re5 Rg2 Qe6 Rb4 Nd5+ Kd8 Qf5 Qa7 Qfc2 Bcg4 c7+ Kd7 c6+ Kd6 c8B Nd7 c7 Nf8 Qf5 Nh7 Bd7 Rf8 Bb5 Rf6 Ba4 Nh6 g8N Qb6 Nge7 Ng8 Rg1 h1R Nec6 Qb8 Rf1 Qf8 Rg1 Rf2 Rg2 Rg3 Rh2 Qg7 Rh6 Rgg2 Bf1 Rc2 Bd3 Rgd2 Be2 Rd3 Bb3 Re6 Ba4 Ra3 Qf8+ Ne7 Qe8 Ng8 Qc8 Rf6+
3N1Qn1/2pRN1nk/1b1r3P/1NB1KnR1/Q1bB2P1/1Bn1rP2/q5b1/3R3n w - - 0 1 illegal: No proof kernel
2Bk1b1n/1r3n2/4q3/1bQ1Q1nR/p2Nb3/K1QN1P1P/1Nr1RPn1/1R2B1r1 w - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 f5 Bd2 f4 Bc1 f3 exf3 Qb6 Be3 Qc7 Bc1 Qd8 Kd2 d5 b4 g5 c4 a5 Kc2 e5 Kb3 a4+ Ka3 d3 h6 g4 b6 e4 h3 d2 c5 e3 b5 g3 b7 g2 b6 e2 Ra2 e1N Qb3 d1N Nd2 d4 Nc4 d3 Ne2 d2 Nf4 Nd7 b8N Qe7 b7 Nc3 Nc6 d1B b8Q Rh7 Nd4 Be2 Bd2 Ne5 Qb2 Rf7 h7 Nh6 h8R Ng6 Qe5 Bf5 Qb4 Bed3 c6 Ne4 c7 Rc8 Rc2 Rh7 Nb2 Qe6 Be2 Re7 Qb3 Nf7 Rh5 Ba6 Bc4 Kd7 Nfd3 Ngh8 Ba5 Ke8 Re2 Neg5 Bd5 Bg6 Bb7 Be4 Rf1 g1R Qc2 Ng2 Rb1 Bb5 Be1 Rb8 Ba6 Rb6 Qc4 Rc6 c8Q+ Nd8 Qcc7 Ndf7 Bc8 Rc5 Qb3 Rc2 Qcc5 Rb7 Qc3 Kd8
4b1k1/r5r1/nbP3Q1/3NBpP1/1Q2BPRN/K2rqQb1/3R2r1/n1BNn3 w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 h5 Kc3 d5 Kb3 a5 e4 f5 g4 Kf7 c4 a4+ Kb2 a3+ Kb3 h3 b6 a2 b7 h4 f3 d4 g5 h2 c6 h3 c5 d3 c7 d2 c6 Qd4 Nc3 Rh7 Bd3 Na6 b8B Nf6 e6+ Kg8 e7 Rg7 e8Q Bd7 c8Q Ra7 e5 Qe3 e6 Ne4 e7 Nec5+ Ka3 Nb3 Qg6 Be8 Rb1 a1B Rb2 Qe1 Qb7 Qe3 Qf1 d1R Be4 Rd3 Rd2 Bb2+ Ka2 Ba1 Nd1 Be5 Qb4 Bg3 f4 Rdd7 Nf3 Rd3 Rg1 h1N Nh2 Nf2 Nf3 h2 Ka3 h1R Be5 Rh2 Nh4 Rg2 Qe2 Rd8 Qf3 Nd3 Qgd6 Ne1 Qg6 Bf7 e8N Bc5 Nc7 Rd3 Nd5 Bd4 Rh1 Bb6 Rh3 Bh2 Rg3 Be8 Rg4 Bg3 Bd6 Rh2 Bc7 Rg2 Be5 Na1+
1rrKn3/q2N2N1/RbPP1B1k/1QN5/2b2p2/P4bb1/2B1Rnr1/1Q1B1Q1n w - - 0 1 illegal: No possible last move, all moves rejected
nB3Rb1/qr1QQ3/NP1b1KRQ/n3n3/NbPrB3/bRr1Pp2/3Bk3/8 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 Kc4 h4 g5 b4 a5 c3 d5+ e6 a4 b6 a3 b7 a2 e3+ d3 h6 g4 h5 g3 h7 g2 b5 d4 b6 Qd7 h6 Na6 b8Q Nf6 Qc2 Bb4 Qd6 Ng4 Be2 Qa7 Rh2 Nc7 Qd1 Rb8 Nf3 g1B Ne1 Na8 Bd2 Rb7 Qe7 Ne5 Rg2 Bh2 Kf6 Bd7 Rg4 Rc8 h8B Bc6 h7 Bd5 Bf3 Rcc7 Bc1 d2 Rg6 d3 Nc2 Bf4 Qh1 d1R Be4 d2 Qh6 Ba3 Nb4 Rc6 Kg7 f5 Na6 Bh2 Kf6 f4 Bg7 f3 h8R Bb4 Qd7 Rc8 e7 Bg8 e8Q Rc5 Bd5+ Kd3 Be4+ Ke2 Qee7 Rc4 Bf8 Rd4 Bg7 Rf1 Bf8 d1N Bd2 Nb2 Bg7 Rc1 c4 Na4 Bf8 Nc5 Bg7 Nb3 Nc3+ Kf2 Bf8 Na5 Na4 Ke2 Rb1 a1B Rb3 Bb2 Bg7 Bh7 Rf8 B2a3 Qh4 Bg3 Bh6 Rc2 Bf4 Bg8 Qh6 Bh2 Bg3 Rc3 Bf4 Nd3 Bc7 Bhd6 Bb8 Ne5
1rBN1b2/1R1Qb1QP/2q5/2B1pn1r/2b1r2P/1RQN1K1P/1Bn3N1/1r1n1k2 w - - 0 1 illegal: No proof kernel
k1B2b2/2bPRRr1/r6p/Bn4QP/QnB1r1n1/1bqP2KN/6NQ/1b1R4 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 exd5 Bd7 axb5 Bc8 f4 gxf4 Kf2 Kd7 g4 Kc7 c4 Kb7 h4 a5 d6 f5 b6 e5 g5 e4 d7 e3+ Kf3 e2 g6 e1R g7 h6 h5 a4 Ra2 a3 Bg2 Rh7 Nh3 Nf6 g8Q Re4 Nc3 Nc6 Qa4 Ne8 Nd5 Qc7 Ne3 Nd6 Rd1 Ra6 Bf1 Ka8 Ng2 Nb5 Qg5 Nb4 c6 Rg7 c5 Qe5 c7 Qc3+ Kf2 f3 c6 f4 Bc4 Bb7 Rb2 a2 c8B a1B c7 Bd5 b7+ Ka7 Kg1 f2+ Kh2 f3 Kg3 f1B b8R f2+ d3 Be2 Rb6 Ka8 Bd2 Bg4 Rf6 Bge6 Rf7 f1N+ Kf3 Ne3 Kg3 Ng4 Be1 Qc1 Re2 Bf6 Bc3 Bd8 Ree1 Na2 Ba5 Nb4 Ref1 Qb2 Re7 Qc3 Rff7 Na7 Bb5 Ba2 Bc4 Nb5 Bb7+ Ka7 c8Q Bb1 Qc7 Bd5 Qce5 Bc7 Bc8 Kb8 Kf3 Ka8 Qh2 Nd6 Kg3 Be6 Bb5 Bb3 Bc4 Nb5+
2r5/1QP2R1r/bPQb2n1/1RKpqnn1/k3r3/BN1N1PB1/2NR2b1/r4B2 w - - 0 1 illegal: No possible last move, all moves rejected
4Q1nb/Pb1BPKn1/qRNN4/4B1QB/4pr2/kP5r/1rQ1n1b1/3RNn2 w - - 0 1 illegal: No proof kernel
1b2krQq/B2n3Q/1r4R1/6q1/3nnQP1/1nB1R3/1pbPP1B1/N3NKRn w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 a4 f5 g4 b5 g6 h5 a5 c5 e6 h4 d6 b3 a6 b2 a7 h3 g7 h2 e7 c4 Qa4 c3 Bh3 f4 Qb3 b4 Qc2 f3 Kf1 f2 Qd3 c2 Na3 b1Q Qg3 b3 Nf3 Qb2 Bg2 Nf6 g8Q Ne4 Qh7 Bf5 Rg1 h1N Ne1 Nd7 Qf4 Rb8 a8Q Rb6 Ra2 Qa1 Bb2 c1N Bc3 b2 Qb8 Nb3 Nc2 Qc8 Ra7 Qa5 Na1 Bg6 Qa8 Qg5 Ra6 Bg7 Qd5 Rf8 Qdg8 Qa8 Ra5 Bd4 Re5 Bf5 Re6 Be5 Rg6 Nec5 Nf3 Bc2 Ne1 Ne4 Qe6 Qc6 Qef6 Rb4 Qfh2 Nb6 Qff7+ Kd7 Nf3 Nec5 Qfg8 Ne6 Ne1 Ned4 Qg3 Qc5 Qf4 Qf6 e8R+ Qg7 Qh3 Qh8 Ree6 Kd8 d7 Bb8 Qhh7 Qg5 Re3 Rb5 Bb7 Rb4 Kg2 f1N Bc6 Nfg3 Bf3 Nh5 Kf1 Nf6 Bg2 Ne4 Qh6 Ke7 d8B+ Ke8 Qhh7 Nd7 Bb6 Rb5 Ba7 Rb6
2bNRn2/2B1q3/Q2rN1n1/3B1PqR/qq3QNP/Q5rB/1b2Pp1q/1K4k1 w - - 0 1 illegal: No proof kernel
nnRN4/1BN2R2/3b1Q2/np2n3/1nrrP1R1/P2Q1N1b/1qP1q2Q/k2KB3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 h4 Ke7 e4 Ke6 a3 d5 c6 b5 c7 f5 h6 g5 h7 d4 h5 g4 h6 d3 Bg2 g3 Nh3 d2+ Ke2 b3 Nf2 b2 Nd3 f4 Nf2 f3+ Ke3 Bd6 Bf1 g2 Kd3 g1N Kc3 Nf6 Rh4 Ne8 Rg4 Ra4 Bh3 Rd4 Nd3 f2 Nb4 f1Q Nc6 Qe2 Qf1 Bd7 c8R Qf6 Qf3 Rf8 h8Q Nc7 h7 Na8 Qd3 Nf3 Qg7 Rd8 h8Q Re8 Qh4 Rd8 Qg3 Ra4 Qh2 d1N+ Kb3 Rd4 Nd2 Nf2 Kc3 b1N+ Kb2 Rc4 Qf8 Ng5 Nf3 Nf7 Bd2 Qg7 Bc3 Nd2 Rf1 Nb3 Be1 Na5 Kc1 Nd1 Rh1 Nc3 Rf1 Nd5 Qh8 Nb4 Qh4 Nh8 Qg5 Ng6 Qh6 Kf7 e6+ Kf6 e7 Bf5 Qh8 Ne5 e8N+ Ke6 Nc7+ Kf6 Rg5 Rd7 Nd8 Bg4 Bg2 Bh3 Rg4 Ng6 Rh4 Bc5 Ne5+ Bf5 Bh3 Rd6 Rff4 Rd5 Nf3 Bd6 Nd2 Ke5 Bg4 Bd7 Be6 Qf6 Bf7 Bh3 Rhg4 Qg7 Be8 Qf6 Bc6 Qg7 Qdg3 Kd4 Rf7 Qe5 Bb7 Qg7 Qgh4 Kc3 Qg5 Qd4 Qhf6 Ne5 Qh4 Qef2 Kd1 Kb2 Qhg5 Ka1 Qe3 Qb2 Qd3 Rdd4 Nf3 Qe2+
NB3R1N/5Q1Q/Q2Kb3/P4p1b/P1b1q2N/2qRbB1n/1kPB4/r2nrb2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 Bc5 bxa5 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 b5+ Kb3 Kd5 a4 g5 h4 f5 e3 g4 e6 d3 e7 g3 Kb4 d2 e4+ Kd4 h6 d5 h7 g2 h5 Qc7 h6 Nd7 e5 Ngf6 e6 Nb6 Qg4+ Ne4 Qf3 d1B Qf4 Be2 Qg5 Nc3 Qg6 Nd1 Ra3 Ra7 Nh3 g1Q Ng5 Qg4 Bg2 Bf1 Bf3 Qe4 Nd2 Bg7 e8Q Bf6 e7 Be6 Nh3 Bg5 Qc6 Be3 e8Q Qg7 Qh5 Re7 Qef7 Rhe8 h8B Qge5 Kb3 b4 h7 Rg8 Nf4 Rg1 Ng2 Qf6 Nc4 Qg7 Ka2 b3+ Ka1 Kc3 Nh4 Qgd4 Be5 Re8 h8N Re7 Ra2 b2+ Kb1 Re8 Bb8 Qdd3 Rh2 d4 Qhh7 Nd5 Qa6 Nf4 Nb6 Nh3 Na8 Qd2 Rg2 d3 Rg8 Qe1 Rf8 d2 Ra1 Rh1 Qfb7 Re7 Qd5 Re8 Ka2 b1B+ Ka3 Ba2 Qdb7 Bac4 Qbf7 Ndf2 Rb1 d1B Rb2 Bde2 Rb1 Nd1 Bd2+ Kd4 Rb3 Re7 Bg2 Bh5 Bf3 Rg1 Bc1 Qc3 Bd2 Re8 Qf6+ Qe5 Bd6 Qb2+ Kb4 Bef7 Be4 Bg5 Bd5 Bfe2 Rg8 Ndf2 Qc8 Ra1 Rf8 Bf1 Bg2 Nd1 Bb8 Re6 Qfg6 Qf4 Qb7 Re1 Bf3 Qe4 Qba6 Bfe6 Qgf7 Be3 Be2 Bcd5 Kb5 Bc4+ Kb6 Bg1 Kc7 Be3 Ra3 Qb3 Bf3 Qbd3 Kd6 Qb3 Bc1 Kc3 Bd2+ Kb2 Bg2 Qc3 Bf3 Qf6 Rd3 Qc3
1bb3k1/1rB5/K4PPb/NBQq1Qbq/1Q2NPN1/1rR4R/2n1p2b/2R2n2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 Ke2 Kf7 g4 h5 b4 e5 d4 c5 g6+ Kg7 d5 a5 g5 a4 d6 a3 b6 c3 Kd3 h4 Kc4 a2 Kb5 c2 d7 h3 b7 h2 Nd2 c4 Qf3 e4 Nh3 e3 Ne4 Ne7 f6+ Kg8 g7 c3 Qf5 Nbc6 b8Q Nd5 Qc7 Qe8 d8N Ra7 Nb7 Bd6 Na5 Rb7+ Ka6 Qh5 b5 Nd4 Qc5 Bb8 b6 Rh6 Bd2 c1B Bb5 e2 Bf4 c2 Bc7 Ne3 f3 Rh8 Nhf2 Nf1 Ng4 Bf4 Rd1 c1B Rd3 a1B Rc3 Nc2 Rg1 Kf7 g8R h1Q Rg6 Bab2 Rh6 Bh2 g6+ Kg8 Rh7 Bg5 f4 Ba3 Rh6 Nd2 Rc1 Nf1 Qce5 Bf8 Qc5 Qh3 Rh5 Q3f3 Rh3 Bfh6 Ngf2 Qh5 Ng4 Rh7 Be5 Rbd7+ b7 Rd4 Bc7 Rb4 Nef2 Qd5 Ne4 Rb3 Bc6 Be6 Bb5 Ba7 b8Q+ Bc8+ Qb7 Bb8 Qb4 Be6 Qa7 Re7 Qac5 Rd7 Bd6 Rb7 Bc7 Bc8
2N4n/3B2P1/2b1B1bk/1q3P1r/R2PNp2/2Rb3r/q2BQ2Q/N1KbbQn1 w - - 0 1 illegal: No proof kernel
BqQN2qk/1n1p2b1/7b/1PP1P1Rb/2b5/Qn1NB1RB/1R2br1K/N1r5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kg3 a5 e4 f5 c4 Kf7 h4 Kg7 b4 a4 h6+ Kh7 c5 f4+ Kh2 a3 b6 g4 b7 a2 h5 f3 e6 f2 e7 d3 e8B d2 e5 Ra5 Qb3 d1B Be3 Ne7 Na3 Bg7 Nh3 Rf8 Bf7 Nf5 Rg1 Kh8 h7 Nd6 Nc2 Nc6 b8R Nd4 Qa3 Nb3 Bd5 Ba6 Nf4 Nb7 Bh3 f1B Rg3 Bfe2 Nd3 Bc4 b5 Rf4 Rb1 a1B Rb2 Rf2+ Bdg2 Qg8 Rf8 Ra8 Rf5 Qb8 Rg5 Ra6 Ra2 Bc3 Rb2 Bd2 Na1 Bc2 Nc1 Bg6 Nd3 Rf1 Bf3 Rf6 Bd5 Rc1 Bh1 Bh6 Be4 Rf2+ Beg2 Kg7 h8N Kg8 Nf7 Bg7 h6 Bh5 Nd8 Kh8 h7 Rc2 Rf3 g3+ Kg1 Bc1 Bh1 g2 Kh2 Bd2 Rfg3 Rc1 R5g4 Bf8 Ne6 Rg1 Bd4 N7a5 Rf3 Bdh6 Be3 Rc1 Ng5 Kg7 h8Q+ Kg6 Rf5 Bd6 Qc8 Kg7 Rf3 Bf8 Ne6+ Kh7 Nd8 Kh8 Kg3 g1Q+ B1g2 Qe1 Rf5 Qf1 Ba8 Nb7 Rg6 Qh1 Rg4 Qd5 Rfg5 Rff1 Kh2 Qg8 Rg2 Bfg7 R2g3 Rf2+
3b4/pP1k2r1/5Q2/Pbnq2q1/N3B3/1nK1P1Qn/B2NNnRB/3QrR1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 fxe5 Be7 dxc5 Bf8 c4 bxc4 Kd2 f5 a4 d5 b4 g5 h4 d4 b5 g4 h6 g3 a5 g2 h5 f4 e6 f3 b6 d3 e7 f2 c6 Bd7 h7 Nh6 c7 Ba4 c8N Kd7 b7 Ng4 h6 Na6 Ra2 Nc5 Kc3 Bb5 Nd2 Rg8 h8Q Rg7 h7 Rb8 Qg8 Ra8 Kd4 c3 h8Q c2 Kc3 Rb8 Bb2 c1N e3 N1b3 Be2 f1N Bf3 Ng3 Ne2 g1N Be4 Nh3 Rf1 Nh1 Ba1 Ngf2 e8B+ Kc7 Nb6 Rc8 Rc2 Qg5 Na4 Be7 Bf7 Kd7 Qh6 Bd8 Qf6 Nc1 Ba2 N1b3 Kb4 Rc7 Be5 Rc6 Kc3 Rb6 Nc4 d2 Bh2 Rd6 Qh7 Rc6 Qh4 Rc8 Qg3 Rc7 Qe1 d1Q Rb2 Qd6 Qd1 Qdd5 Nd2 Ne6+ Kb4 Rc1 Rc2 Rb1 Kc3 Nec5 Qe1 Qge5+ Nd4 Ra1 Nc4 Nfd3 Rg2 Rb1 Nd2 Qg5 Ne2 Ndf2 Qc1 Ra1 Qc2 Re1 Qb1 Rf7 Qd1 Rg7
n7/1K2R3/q1BQB1b1/1Q2b1Q1/PR2NR1b/3rBp2/NbnP3P/n1rqk3 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Ke3 b5 Kd4 f5 Kc5 g5 a4 b3 e4 g4 h6 b2 e6 Kf6+ d6 Kg5 e5 Kf4 h7 g3 e7 g2 e8R b4 e6 b3 e7 Nh6 d7 Na6+ Kc6 Ng4 Qe1 Ne3 Be2 Bg7 Nc3 b1Q Qd1 b2 Nb5 Be5 Rf8 Nc2 Nf3 g1B e8B Bf2 Nc3 Bh4 Ra2 Na1 Kd5 c5 Kc6 c4 Ng5 Qa5 d8Q Nc7 Rg1 Rb8 Rg2 Na8 Qd6 Rb3 Qg1 Be6 Nge4 Bf7 Rg5 Bg6 Bg4 Qc2 Bh3 b1N Ba3 Kf3 Bc5 f4 Be6 Qd1 Rb2 Na3 Be3 N3c2 Na2 Rd3 Rb4 Ke2 Kb7 c3 Bc6 f3 Rf4 Rc8 Qg2+ Ke1 h8Q Na3 Qf6 c2 Qf5 c1B Rh5 N3c2 Rh7 Ba3 Qgg5 Bab2 Re7 Nd4 Be8 Rc1 B8d7 Ndc2 Bc6 Bec3 Qfc5 Be5 Qb5 Qa6+
2k1BbNR/1R3Q2/bQBn1n2/1n3qP1/PKN1p1r1/P1r3Bq/N1Q5/5bn1 w - - 0 1 legal: proof: h4 d5 e4 f5 c4 fxe4 cxd5 a5 b3 g5 hxg5 a4 bxa4 Ra7 Rh5 Ra5 Rh1 Ra8 d4 Kd7 Kd2 e5 Kc3 c5 f4 h5 g4 b5 a3 c4 d6 h4 d5 e3 f5 e2 g6 e1N g5 e4 f6 h3 f7 h2 g7 Nc2 Nf3 Nh6 g8B Nf5 Nfd2 Ncd4 Qc2 Rh4 Kb4 c3 Nc4 Rg4 Bf4 Ba6 Bg3 Qc8 Bh7 Ra7 Bg6 Rc7 Ra2 Kd8 Rb2 Nd7 Rb3 Rc5 Be2 Nf6 d7 Nd6 Bf1 Kc7 d8N Qd7 Nc6 Qf5 Ne7 Kb8 Ng8 Kc8 Qe2 c2 Nc3 c1N Na2 Rc6 Qc2 Nce2 Bh5 Ng1 Bd3 Nde8+ d6 Rc5 Ne3 Rc3 Nc4 Bg7 f8Q Bh6 Qf7 Bf8 Ka5 b4+ Qd5 Nb5 d7+ Kd8 Qf7 Ned6 Rb2 b3 Kb4 Kc7 Rb1 b2 Bg6 Kb7 d8Q+ Be7 Qb6+ Kc8 Qh7 Bf8 Be8 Qf1 Qf7 Qh3 Rf1 b1B Rf5 Qh7 Re5 Qf5 Re7 Qg6 Rb7 Qf5 Qc1 Bc2 Be2 Bd3 Qc2 Rf4 Bh5 Bf1 Bc6 Rh4 Qe7 Rf4 Bhe8 Rg4 Qf7 Nf3 Rg1 h1Q Rg2 Ng1 Rh2 Qg2 Rh8 Qh3
r1kN1Rr1/2B3N1/1bQnb1N1/1R1p3B/1PBP4/1q3n2/K1Pr2bQ/1Q2r1q1 w - - 0 1 illegal: No possible last move
3Rr1nq/R1r5/NbB1NR1Q/1P1K2b1/P1Q4N/1p2r1qP/6nQ/k1B2br1 w - - 0 1 illegal: No proof kernel
2q1B3/N2n3N/bRq3rq/Bp1Pr3/1PR1rb2/QR2PN2/KnQ2Bk1/6q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 c4 d5 cxd5 Qf6 a5 Qb6 axb6 Bh3 Qb3 Be6 Qd1 Bc8 h4 Kd7 d4 Kd6 Kd2 a5 Kc2 c5 Kb3 f5 b7 g5 e3 g4 h6 c4+ Ka3 c3 b4 g3 h5 g2 h7 a4 h6 f3 Ra2 f4 Rh5 f2 Rd2 f3 Qe2 c2 Rh4 Nd7 b8N Ne7 Ka2 a3 Nc3 Nf5 Nc6 Ba6 Na7 Rg8 h8Q Rg6 h7 Bh6 Rd3 Re8 Bd2 c1Q Be1 Bf4 Qc2 Re5 Be2 f1R Qa8 f2 Nf3 g1Q h8R Qh1 Rg4 Qh6 Rb8 Rh1 Bd1 f1Q Bf2 Qg2 Rb7 Rh4 Ne4+ Ke7 d6+ Ke6 Rb3 Kd5 Neg5 Qh3 Qd2 Qc6 Nh7 Ke4 d5 Rge6 Rb6 Rg6 Ka1 a2 Qe2 Rf6 Kb2 Rg6 Ka3 a1Q+ Qa2 Nc5 d7 Nd6 d8B Nd7 Be2 Qg1 Qb2 Bc8 Ka2 Nc4 Qa3 Ba6 Qc8 Nb2 Bd1 Qb7 Qc6 Qc8 Qc3 Qhf1 Qc2+ Qd3 Rb8 Qc6 Ba5 Qc8 Rb6 Qc6 Qd2 Qdc4 Qc2+ Nd3 Rb8 Qc8 Rb6 Rf6 Rg7 Bh2 Nd4 Q4c6 Bh5 Bg3 Qd2 Nb2 Be8 Rhf4 Rg4 Rg6 Ne2 Kf3 Nd4+ Kg2 Nf3 Rc4 Re4 Bf4 Qc2 Rc3 Rd4 Rd3 Rc4 Rd4 Rb7 Rde4 Rb8 Ree6 Rb6 R6e5
q3bkr1/bR6/BBN1r3/PR4P1/1p5Q/rnq1r1PB/1nN2K2/1n1R2QN w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 e4 b5 d4 f5 a4 c5 e6 h5 e7 f4 e5 b3 d6 b2 g3 c4 d5 h4 Rh3 c3 Ra2 f3 Na3 b1N Kf2 b4 Ba6 c2 Be3 c1Q Nc2 Bd7 Bb6 Nh6 a5 Rg8 Ra1 Nf7 Rh2 Ra7 Nh3 Nc6 Qg1 Nd4 Rh1 Bc6 Rh2 Qa8 Rh1 Kd7 e8R Nb3 Rb8 Bg7 Rb7+ Ke8 d7+ Kf8 d8Q+ Be8 e6 Ne5 d6 Nc4 d7 Nb2 Qb8 Bh8 d8N Bc3 Qe5 Bd4+ Qe3 Bc5 Nc6 Bd4 Rb8 Re7 Qh2 Bc5 Rf1 Bd4 Rb7 Bc5 Re1 Qd2+ Re2 Qc3 Qh1 Bd4 Rd2 Bc5 Rd5 Bd4 Rb5 Bc5 Nf4 h3 Nd3 h2 Qg1 h1R Qd4 Na3 Rd1 Nb1 Nd8 Rh6 Nc6 Bd6 Qh4 Bb8 Kf1 Rhg6 Nf2 Ba7 Nh1 f2 Ke2 Rf7 Kf1 Rf3 Kg2 Re3 e7+ Kg7 Kf1 Rge6 Kg2 Bd7 e8B f1R Bh5 Rff3 Bg4 Kf8 Bh3 Be8 Re7 Rd3 Rb7 Rfe3 Kf2 Nd4 Na1 Qc4 Kf1 Ra3+ Kf2 Qc3 Nc2 Nb3
nBqBK1b1/4b2N/2r3Pn/1Q1qB3/N3bp2/3RQ1Nk/1P2QPq1/3rbR2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Kd7 e3 e6 d6 Bb7 d5 Qe7 Bc4 Qd8 Bb3 Bc8 Ba2 Ke8 d7+ Ke7 Bc4 Kd6 Bb3 Ke5 d6 Kf5 Bd5 exd5 Ra3 Ke5 Ra1 Ke6 Ke2 Kf5 Kf3 a5 b6 c5 b7 h5 g3 a4 Rh4 a3 Ne2 a2 Rg4 c4 Rd4 h4 Nbc3 Na6 b8B h3 Qd2 Qc7 d8Q h2 d7 Rh6 Qe7 Rc6 d8B Be6 Rb1 a1Q g4+ Ke5 e4 h1B+ Kg3 f5 Kh4 Nh6 Kh5 f4 Kg6 Ra7 Ng3 Rb7 Na4 c3 Qd1 c2 Bd2 c1B Bc3 Bd2 Qe2 Rb3 Rg1 Qf1 Qb4 Bf3 Qbb5 Qg2 Rf1 Be1 Rd1+ Kd6 Bh8 d4 e5+ Kd7 Kf6 d3 Bg7 Bc4+ e6+ Kd6 e7 d2 e8Q Rd3 Q8e3 Be7+ Kg6 Be6 Bc3 Be4+ Kg7 Bc4 Bf6 Ke6 Be5 Bf6+ Kf8 Qc8 Ke8 Be7 g6 Rd4 g7 Bb3 Rb1 d1Q g5 Bbd5 Nh1 Kf5 g8N Be6 Nf6 Bg8 g6 Qb3 Bed6+ Qd5 Be5 Kg5 Ra1 Kh4 Ng3 Rd1 Ra3 Kh3 Rd3 Nc5 Qc2 Nd7 Qce2 Nb6 Nh7 Na8
r1B2qQ1/5n1b/2RN1kP1/4prR1/N2P1qQ1/3bbN1r/PnKB1b2/3R3B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 g4 c5 d3 h5 Kd2 b5 d6 e5 d7 b3 f6 b2 f5 c4 Rh2 b4 Kc2 c3 Rg2 h4 Nf3 h3 Bd2 h2 d4 h1Q Rg3 Bh6 Bg2 Qh2 Bh1 Na6 Rg2 Qf8 d8N+ Ke8 g6 Nc5 g7 Nd3 g5 Qf4 f7+ Ke7 Qg1 Ba6 Nb7 Rh7 Nd6 b3+ Kd1 Bc4 g6 Kf6 Rg5 c2+ Ke2 c1B Kd1 Rh8 Nc3 b1B Na4 b2 Qg4 Rh7 Bc3 Be3 Bd2 Ne7 g8B Bf2 Ne1 Nc6 Nf3 Qg7 f8Q+ Bf7 Nb6 Nd8 Na4 Qh8 Qe8 Be6 Bf7 Qf8 Bg8 Bd5 Be6 Nf7 Bc8 Bc2+ Ke2 Be6 Rd1 b1R Qd8+ Qe7 Qg8 Nb2 Be3 Bd3+ Kd2 Qf8 Kc3 Bg7 Bc1 Rh3 Bd2 Be2 Kc2 Bh6 Rf1 Ba6 Rd1 Bd3+ Kc3 Nd8 Nb5 Bh4 Qh8+ Ke7 Ng1 Qf6 Rf1 Qe4 Rh5 Be3 Rg5 Bf7 Qg7 Qd6 f6+ Ke8 Qh8+ Bg8 f7+ Ke7 f8R Bh7 R8f6 Nf7 Qg8 Qd8 Rc6 Qf8 Rc1 Qf3 Nd6 Kf6 Rf1 Re1 Kb3 Re2 Kc3 Rf2 Rd1 Qg3 Kb3 Rf5 Nf3 Qf4 Kc3 Bhf2 Kb3 Be2 Kc2 Bd3+
1R4nb/5qn1/Q2BPp2/1Q1QP3/KB2nR1N/2rBn3/2q1Pb2/1bNRr2k w - - 0 1 illegal: No proof kernel
1n6/5Rb1/kNPpr3/n1rRQ2B/3R3q/2Pb2QP/bq1r1N1K/r3Q1BB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kg2 a5 b4 f5 e4 a4 c6 a3 e5 a2 b6 g4 e6 g3 c3 Bg7 b5 Ne7 h6 Ra5 h7 Nd5 b7 Qh4 e7 Nb6 Nd2 Nc4 b6 Rc5 Qe1 Na5 Nh3 f3+ Kg1 g2 Nf2 f4 h3 Rg8 Kh2 g1R h8Q Rg6 Bg2 Re6 Rf1 d6 Nc4 Bd7 Be3 Bc8 Rc1 a1Q Bh1 Qb2 Rd1 Bd7 Rd5 Rf8 Qh7 Rf5 Rd4 Rfd5 Qf5 Bc8 Qe5 Bd7 Re4 Rd2 Rd4 Rf6 Rg1 Be6 Rg5 Bd5 Rf5 Re6 Rh5 Be4 Rg5 Bb1 Rf5 Ba2 Rg5 Kf7 e8B+ Ke7 Bh5 Kd8 Rf5 Rg6 Rd5 Re6 Rf7 Rb5 Qd1 Bh6 Rf5 Na6 b8Q+ Ke7 Qg8 Rc5 Qgg1 Kd8 Rf7 Kc8 b7+ Kb8 Qe2 Ka7 Nd3 f2 Qed1 f3 Qgg3 f1B+ Bf2 Be2 Bg1 f2 Qb1 f1R Nf2 Bd3 b8R+ Qe7 Qa1 Bg7 Rb4 Nb8 Nb6 Ka6 Rbd4 Qh4 Qd1 Re1 Qde2 Red1 Qe1 Ra1
1Nb1NQnr/BR2b3/QP1b3P/3B1RQ1/1KR1nrB1/7q/q2Pp3/q4q1k w - - 0 1 illegal: No possible last move, all moves rejected
KB6/N2Q4/PnbQBN2/PR2qPq1/n3N1q1/RR1Bp3/3br3/nr1kn3 w - - 0 1 illegal: No possible last move
2RrBQ2/1NN5/PP3r1q/bBR1n3/2r1K1Qr/1Bk3pn/2bN2P1/R1qq4 w - - 0 1 illegal: No possible last move
n1qR3r/K2rB1bP/3Qb1k1/QNp1P1nr/BR3q2/6B1/1N1P1NRn/5r2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 b4 g5 e4 f5 h4 Kf7 h6 c6 b6 f3 Ke3 a4 Kd4 g4 b7 g3 h5 a3 h7 a2 b5 f2 h6 g2 d6 f4 Kc5 f3 b6 Kg6 Rh4 Bg7 d7 Qe8 d8R Kg5 Bb5 f1N Nc3 f2 Qa4 Kg6 Nh3 g1Q Ba3 Bg4 Nd1 Bf6 Qa5 Ne3 Nb2 f1R Nf2 Ra7 Ba4 Qg3 Re1 a1R Re2 Bg7 Bb4 Nf6 Ba3 Rf8 h8N+ Kh7 Bb4 Qf4 Nf7 Be6 Nd6 Rh8 Nb5 Kg6 h7 Neg4 Ba3 Nh2 Rg4+ Kh6 Rg2 Qd7 Re3 Ra2 Rb3 Qc8 Rb4 Nbd7+ Kd4 Rd1 b8B Rf1 b7 Nb6 Kc5 Na8 Bd6 Kh5 b8Q Rd7 Be7 Raa1 Qbc7 Rh1 Qd6 Raf1 e5 Ng8 Bf6 Nh6 Bh4 Nf7 Bg3 Kg5 Qd4 Kg6 Qd6 Nc7 Kb6 Ng5 Ka7 Na8+ Qdc7 Re1 Rc4 Rhf1 Be7 c5 Rb4 Re3 Bh4 Rh3 Bg3 Rd3 Qd6 Rh5 Qb8 Nc7 Qbb6 Rd7 Qd6 Na8+
3Q1qQ1/Rn4bP/2nr3P/Pr1n1N1N/1Q1nk1b1/1B1rp3/1RN5/B1K2Rq1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 d4 e5 Kd2 c5 a4 b5 d6 g5 d7 c4 h6 g4 h7 b3 h5 e4 d5 b2 h6 g3 d6 b4 Qb3 g2 Nh3 g1N Na3 b1Q Bb2+ Kf7 f6 Ke6 f7 Kd5 f5 Nf6 Rh2 Ra6 Nc2 Bg7 f8N Nc6 Ne6 Ne2 Ned4 Qf8 d8Q Rb6 Bg2 Qg1 d7 Rb5 Qc3 b3 Qb4 Rb6 Bc3 b2 Nf4+ Ke5 a5 b1R Nh5 Nd5 f6 Rb3 f7 Rb5 Rf1 e3+ Kd1 Ra3 Ba1 c3 Bh3 Ke4 Nf5+ Ned4 Kc1 Rg8 Qg5 Rb3 d8Q Rh8 Na3 c2 Bg4 Rd3 Bd1 Qd6 Qg8 Qf8 Qd8 Be6 Ne7 Bg4 Nf5 Qc5 f8R Qd6 Kb2 c1N Nc2 Nb3 Rf7 Qf8 Ra7 Nc5 Kc1 Nb7 Ne1 Nd6 Rb2 Nb7 Nc2 Be5 Qe6 Rg8 Qf7 Rg6 Qg8 Re6 Ne1 Bh8 Bb3 Rd6 Nc2 Bg7
br5n/bQ3qPB/4Pp2/1Q1K1q2/1BB2P1N/1R3N1k/1Nb1Qrn1/q1R3q1 w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 c4 Kg4 f4 a5 c6 h5 g3 d5 c5 f6 e6 h3 c7 h2 b6 a4 c6 h4 e7 a3 e8B h3 b7 a2 Nd2 Qd7 Bg6 Nh6 Bh7 Qf5 Ndf3 Nd7 b8Q Nf7 e4 Nc5 e5 Bb7 c8N Nd3 e6 Ne1 c7 Ng2 Rb1 a1Q+ Bb2 Bc6 Bc4 Ra2 Nd6 Ba8 Bc3 Rf2 c8Q Rg8 Qb6 Nh8 Qe2 Be7 Qcc6 Rb8 Rb3 Bd8 Qbb7 Bb6+ Qc5 Ba7 Qcb6 Qd1+ Kc5 Qa1 Bb4 d4+ Kc6 d3 Qb5 d2 Nh4+ Rf3 Qc5 d1B Qb5 Qfb1 Kd5 Bc2 Qe5 Rf1 Ngf3 Rf2 Rc1 h1Q Qe3 h2 Qe2 Kh3 g4 Qe1 g5 h1Q g6 Qeg1 g7 Qhh2 Nf7 Qg3 N7e5 Qg6 Nd3 Qf7 Nb2 Bd1 Kd6 Qf5 Kc6 Bc2 Kd6 Q5g6 Kd5 Qf5+
1Q1Rq1b1/4Q1Pp/bRB5/1r1nNBbn/K1b3Qq/2k1NRPP/1r2B2r/8 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 g5 f4 Bg7 fxg5 Bh6 Be3 Bf8 Bd4 exd4 Kd2 Ke7 b4 Ke6 e4 Ke5 c4 f5 Kc2 d5 Kb3 a5 g6 f4 g7 f3 b6 d3 c6 Kd4 c5 d2 g3 f2 c7 Bf5 c8R Nd7 b7 Ngf6 b8Q Be7 c6 Nh5 e5 Bg5 e6 Ndf6 h3 Qe8 c7 Bd3 e7 Ba6 Be2 f1B Qb7 Rb8 b5 a4+ Ka3 Rf8 b6 Bc4 Kb4 a3 Nc3 a2 Rb1 a1R Rd8 Ra2 c8B Rb2+ Ka5 Rf7 Bf5 Rf8 Qa4 d1B Qa7 Bb3 Nd1 Rf7 Ne3 Kc3 b7 d4 Nf3 d3 Ne5 d2 Rh2 d1Q Rf2 Nd5 Rf3 Ba6 Qg4 Qd4 Qc5+ Bbc4 Qd6 Rf6 Qc7 Rc6 Ka4 Rc5+ Qd7 Rcb5 Qc7 Ra8 b8Q Ra7 Bd1 Rh2 Be2 Rab7 Qd6 Rb2+ Qd7 R7b5 Qe6 Qf7 e8B Qg6 Bc6 Qe8 Qe7 Qe4 Bd1 Bfd3 Be2 Qf4 Bc8 Bg6 Be6 Bf7 Bf5 Bg8 Rd1 Nc7 R1d7 Nd5 Rb7 Bf6 Rb6 Qg5 Bc2 Qh4 Bf5 Bg5
2k1N2n/R4pb1/qrq1Pq2/3RqN2/Q1NBRbB1/3n1P2/1P1rKB2/2Q4n w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 c4 Ba6 h4 gxh4 b6 Bb5 cxb5 Bf8 g4 a5 e4 h5 g5 d5 e6 c5 b7 d4 g6 a4 e5 a3 e7 Kd7 e8N c4 b6 h3 g7 h4 Qf3 h2 Qe4 a2 Kd1 h3 Qd3 c3 Be3 c2+ Ke2 c1B Qh7 Ra6 Nd2 Ne7 g8R Ng6 Qh6 Bg7 Ngf3 Nc6 b8Q Qf6 b7 Rb6 Qa7 Nb4 b8B+ Kc8 e6 Nd3 Bg3 Rh7 Rg1 h1Q Nh4 h2 Nf5 Nh8 Nc4 Qc6 f3 h1N Qa4 Bd2 Rd1 a1Q Bh3 Bc1 Bef2 Bf4 Bg4 Qa3 Rge1 Qa1 Qc2 Qa6 Qg5 Rh2 Qa4 Rg2 Rd2 Rg1 Ra1 Rc1 Bh2 Rd1 Bhg1 Ne1 Rd3 Qe5+ Re3 Qf6 Re4 d3+ Kf1 d2 Ke2 Nd3 Bd4 Qe5 Bgf2 Bf8 Rg6 Bg7 Rh6 Qf6 Rh5 Qa7 Qb3 Qac7 Ra2 Bg3 Bde3 Rg1 Nh6 Be5 Bd4 d1Q+ Ke3 Qa1 Ke2 Qb8 Ra7 Rd1 Qc1 Bf4 Rd5 Qa6 Qa4 Qbe5 Nf5 Rd2+
n2bBb1r/2B1PRN1/1Q2NN1r/1q1Pr3/k1P5/1b4BK/1p1Rq2Q/4nR1r w - - 0 1 illegal: No possible last move, all moves rejected
1RNRq1r1/2B1pN1N/8/n1rRK1P1/rn1P1nb1/1B1q2bQ/1P1rQ2Q/k7 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 a5 Kd4 h5 f4 c5+ Ke5 a4 g4 a3 d4 a2 f6 c4 d6 c3 b6 h3 b7 h4 d7 h2 f5 c2 g5 h3 Kf4 Bg7 Ba6 Qe8 d8R Nc6 b8Q Nb4 Nd2 Ra7 Bb7 Ra4 Ne4 Bd7 Be3 c1R Ke5 Rc5+ Bd5+ Be6 Rc1 a1N Nf3 Nb3 Qe2 Na5 Rhf1 h1R Bf4 h2 Nd6+ Kf8 Nc8 Kf7 Rf2 Rd1 Rc3 h1Q Rb3 Qh7 Qc7 Nc2 Rb8 Rd2 Rf1 Nb4 Rc1 Rc6 Rc5 Qh3 Rcb5 Qf1 Bb3 Rc5+ Rd5 Qd1 R5b6 Qb1 Rd6 Qd3 Bg3 Nh6 Rd8 Rg8 Kf4 Ng4 Ne5+ Kf8 f7 Ne3 Bh2 Bh8 Bg3 Kg7 f8N Ng2+ Kg4 Bd7 Nf7 Nf4 Nh7 Be6 Kh4 Bd7 f6+ Kg6 Qce5 Bh3 Qh2 Bg4 Qee2 Nh3 Bc7 Nf4 Nfd6 Bg7 f7 Bh8 f8Q Be5 Nf7 Kf5 Qd1 Ke4 Qh6 Qc4 Kg3 Kd3 Q6h3 Bd6 Ba2 Qa6 Qe1 Kc2 Qee2 Qab5 Bb3+ Kb1 Kf2 Ka1 Ke3 Nh5 Ke4 Bg3 Bc4 Qa6 Bb3 Nf4 Ke5 Qd3
r1B1r3/3P2Rb/NB1K2br/3N1pnn/1R1N2QP/2Q5/k1rR1Pq1/nq5Q w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 e3 d5 Ra3 d3 Qe2 d4 Qd1 e6 Ra1 d2+ Ke2 d3+ Kf3 Bc5 Kg2 Bd4 exd4 Qd6 Qf3 Qe7 Qd1 Qd8 Kg3 Kd7 Kf4 Kd6 b4 Kd5 h4 Kc4 Ke5 a5 c3 g5 h6 a4 h7 g4 d5 g3 b6 g2 b5 a3 b7 a2 b6 Nf6 d6 Nh5 Ne2 g1R Bh3 Na6 b8N Nc7 b7 Qg8 Na6 Qg2 b8R Re8 Qf1 d1B h8Q Bc2 Be3 d2 Bb6 Kb3 c4 d1Q c5 Bg6 Nbc3 Qb1 c6 Bb7 Nd5 f6+ Kd4 e5+ Kc5 e4 Bc8 e3 Nd4+ Kb2 d7 e2 Kd6 e1R Qg8 Ne6 c7 Ng5 Qe6 Rh8 Qg4 Rh6 Rh3 f5 Rd3 Re8 Rd2+ Ka3 Qe1 Rh1 Qee4 Rc1 Qe1 Rc2 Qh1 Qe1 Rc1 a1N Rb1 Qee4 Re1 Qd3 Re7 Ka2 Rg7 Bc6 Bb7 Bb5 c8Q Bc4 Qc6 Qdf1 Bc8 Qb1 Qc7 Bb3 Qc3 Bc4 Ba5 Bb3 Rb4 Bc4 Bb6 Bb3 Nf6 Bg8 Nd5 B8h7
2K2n2/B2P4/1rb5/R1Pq1r1R/QR2BBk1/1qNQ1Np1/3r2P1/r2bq1Nn w - - 0 1 illegal: No proof kernel
N1n2bR1/3pB1r1/3n3Q/Q1q1qk2/1R4b1/2N2BrQ/P1bPP1RK/1b2n1N1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 Nf6 cxb5 Ng8 b4 axb4 Kf2 Ke7 Kg2 Ke6 h4 g5 h6 f5 h7 c5 b6 c4 b7 f4 h5 c3 h6 f3+ Kh3 f2 Qb3+ Kf5 e6 g4+ Kg2 c2 e7 g3 e8Q Na6 b8R Bb7+ Nf3 Qc7 Rh2 Qe5 Ba3 c1Q Nc3 Nc5 Rb1 Ne7 Qd8 Be4 Qa5 Rg8 h8Q Nb7 h7 Bc2 Ng1 Nd6 Kh1 Rg7 Bg2 f1B Bf3 Bh3 Rg2 Nec8 Qe6+ Kf4 Qh6+ Kf5 Rb2 b3 Bc5 Nb5 Be7 Bg4 Rb1 b2 Qh3 Rg6 Qg7 Raa6 h8N Nbd6 Qgh6 Rg7 Ng6 Rb6 Ra8 Rb3 Nf4 Ra3 Nfd5 Rb3 Ra1 b1B Nc7 Qa3 Rb8 Qac5 Rb4 Qe6 Rf2 g2+ Kh2 Qee5+ Qg3 Bd3 Na8 Bbc2 Rb1 Ra3 R1b3 Bb1 Rb8 Bdc2 R3b4 Rb3 Nh3 g1N Rg2 Ra3 Bc6 Nb6 Ne4 Rd3 Nc3 Nf3+ Kh1 Ne1 Ng1 Re3 Qgh3 Rg3 Re8 Nbc8 Kh2 Nb7 Bf3 Nbd6 Bd8 Be7 Rg8 Bf8 Bf6 Qc7 Be7 Qcc5
1R2N2B/1rP3nk/1N1R3n/4Qq2/B4rRr/3BP1q1/PKpb1r2/Qbn1Q3 w - - 0 1 illegal: No proof kernel
2r1Nnq1/2PrB2b/Kp1Q3N/2R2R1P/1N1B3b/n1Q1P1b1/3qq1Q1/b2k3B w - - 0 1 illegal: No proof kernel
b1R1Q2R/B1P2P2/q2k1b2/B1nPn1nq/1K1rq2p/1n1R2N1/B5Q1/2QN3r w - - 0 1 illegal: No proof kernel
B1K2Qq1/nQp2N2/2bNQ2r/2kB1b2/r5P1/qbb4R/NqP1P2R/n1B5 w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 g5 axb5 Qf6 h4 Qf4 d4 Qh2 d5 Ba3 d6 Bxd6 hxg5 Bf8 Kf2 Ke7 Kf3 h5 Ke4 f5+ Kd5 a5 b4 f4 g4 f3 b6 f2 e6 h4 b5 h3 b7 a4 b6 a3 g6 a2 g7 Nc6 b8Q Qd6+ Kc4 h2 Kb5 Na5 b7 Nb3 Nc3 Nh6 g8Q Ra4 Qa8 Bg7 b8N Nf7 Qc6 Qa3 Qdd5 Rh6 Bg2 f1B Ne4 Bc3 Nh3 d6 Rb1 a1Q Nhg5 Q1b2 Na6 Na1+ Nb4 Bd7 Qc4 d5 Nd6 d4 Bd5 d3 Qa8 Bc8 Qcb7 d2 Kc6 d1Q Na2 Bg2 Qe4 Qd4 Qg6 Qg7 Qe4 Kf6 e7 Bf5 Qf8 Qg8 e8B Bf3 Qc4 Ke5 Qca6 Kd4 Bd7 Qbb4 Rb3 Qb2 Be6 Q4a3 Kd7 Kc5 Bc6 Bd5 Kc8 Bh8 Rd3 Bc3 Rh3 Bb3 Bg2 Nd8 Bf3 Nc6 Ngf7 Nd4 Bg2 Nb5 Qac6+ Kd4 Qd7 Kc5 Bed5 Bd2 Qe6 Bc3 Rf1 h1B Rf2 Qg7 Bge4 Qg8 Rfh2 Bg2 Qa6 Bh1 Ba8 Bf3 Bed5 B3e4 Qb7 Bg2 Bc4 Bc6 Bd5 Na7+
K3N3/1P2BrQ1/kq2BbQ1/n1R1q3/1r1NPp2/R3b3/1R1Bn1QP/4bb1r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 d4 Kb6 b4 a5 h6 g5 d6 f5+ Kd5 c4 e4 f3 d7 g4 h7 a4 Bd2 f2 Ne2 f4 Qc2 g3 Na3 c3 Nc4+ Kb7 b6 a3 b5 a2 Bh3 f1Q Be6 g2 Rg1 Qf2 Rgc1 Qe8 d8Q g1B Qg5 Ra7 Qg6 Ne7+ Kc5 Rg8 h8Q Nbc6 Qhg7 Na5 Kd6 Rh8 d5 Rg8 Qb2 c2 Nd4 Bd7 Kc5 Nf5+ d6 Ng3 Kd5 Ne2 Kc5 Kb8 b7 Be7 Kb6 Bf6 Re1 Bc8 d7 c1B d8B Qe3 Rd1 Bf2 Be7 Be1 Nd6 Rf8 Qc2 Rf7 Qb2 Qh8 Ne8 Qh5 Qc2 Qe5 Qb2 Bg3 Rg1 Be1 Rg3 Qf2 Ra3 Ra8 Rb1 a1R Qa2 Qg1 Rb2 Rb1 Rc2 Rb4 Rc5 Ra7 Bc4 Bh3 Be6 Bf1 Qb2 Nb3 Qc2 Ra5 Kc6 Ka7 b8R Raa4 b6+ Ka6 Qb2 Qf5 Rb7 Na5+ Kc7 Qf2 Kb8 Qe5+ Ka8 Qg1 Rd7 Qf2 b7 Qg1 Qa2 Rb1 Rdd5 Rab4 Rc2 Qf2 Rdc5 Qe3 Rb2 Qb3 Bf5 Qbe6 Bg4 Qb6 Be6 Ra1 Qb3 Rb1 Qbg3 Ra1 Qg2 Rb1 Bc3 Be3 Bd2 B1f2 Q2g4 Bg2 Rbc2 Rh1 Rb2 Bf1 Qg2 Be1
q1nb2B1/NP1qBR1n/P2Q4/NnPN4/1B4r1/4Qb1r/R1n3pR/rk3K2 w - - 0 1 illegal: No possible last move, all moves rejected
qR1N1Nbr/PBn1bR1r/2NP1p2/Kr3P2/1Rr3Q1/2k5/1q2bBB1/1n5Q w - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 h4 g5 hxg5 Kd7 cxb5 Ke8 b4 axb4 a4 Kd7 f4 Kd6 d4 h5 Kd2 e5 g4 c5 b6 f6 f5 e4 b7 b3 Kc3 c4 Kb4 c3 g6 b2 g7 c2 g5 h4 g6 e3 a5 e2 a6 e1Q+ Nd2 b1B a7 h3 Nf3 h2 Nh4 Qg3 Ra4 Qe1 Bg2 Qe6 Ndf3 Qe5 Be3 c1R Bf2 Ne7 g8Q Ba2 g7 Na6+ Kb5 Nc7+ Ka5 Rh7 b8R Rc4 Ng6 Ba6 Rab4 Qc8 Rg1 h1R Qe1 Qe2 Nfe5 Qb2 Nc6 Rh8 Qe4 R1h7 Qg4 Bb3 Qf7 Qe8 g8B Qd8 Rb1 Qc8 R8b7 Rb8 Qg7 Qe8 Qh6 Ba2 Qh1 Bb3 R7b5 Rb6 Be6 Qa8 Bc8 Bd1 Rc5 Be2 Bb7 Bb5 Rg1 Ba4 Rcb5 Bb3 Rc1 Kd7 d6 Ned5 Re1 Nc3 d5 Be7 Rd1 Nb1 Nf8+ Ke8 d7+ Kf7 d8N+ Ke8 Nfe6 Kd7 Nf8+ Kd6 Nb8 Ke5 d6+ Rc5 Rc1 Bg8 Rc3 Nd5 Rcb3 Rc1 Rc5 Rc4 Rc8 Nc7 Re3+ Re4 Nbc6+ Kd5 Rb8 Kc5 Rb5+ Kc4 Reb3 Rd4 R3b4+ Kc3 Re5 Rc4 Re3+ Kc2 Rh3 Kd2 Rh5 Kc3 Rg5 Qd2 Rg7 Qb2 Rf7 Rb5+
8/P1nR1nBR/1qbpn1P1/K1bN1bN1/2r2N1n/2PqQ2r/R6Q/1k1B3B w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 f4 h5 g4 e5 a4 b5 g6+ Kf6 g7 h4 g5+ Kf7 g6+ Kf6 a5 h3 c6 e4 c7 b3 Kc3 h2 a6 b2 a7 e3 Qh5 e2 Nh3 e1N Be2 Nd3 Ng5 Bc5 Ra2 d6 Bd1 Nh6 g8B Na6 Bd5 b4+ Kc4 b3 Kb5 Be6 c8Q Nf7 Nc3 b1Q Bb2 Nc7+ Ka5 Rb8 Qf3 Rb4 Qe3 Rh3 Ba1 b2 Qb7 Kg7 f6+ Kh6 f5 Nf4 Be4 Rc4 Nd5 Bc8 Qb4 Nfe6 Qbd2 Bd7 Qdf2 Bc6 Qff4 Qb8 Bef3 Qb3 Be4 Qd3 Bg2 Nfd8 f7 Kg7 f8N Nf7 f6+ Kh6 Re1 h1N Qh2 Ng3 Bh1 Nf5 Rg1 Nh4 Rg4 Nd4 Nfe6 Kh5 Re4+ Kh6 Nef4 Nde6 Bh5 Qg1 Bd1 b1B Bd4 Qf2 c3 Bc2 Ne2 Kh5 Re5 Kg4 Nef4+ Qf3 Re4 Kf5 Be5 Qf2 Bd4 Nf8 Re7 Nfe6 Rd7 Qde2 Qd2 Qfe1 Nb4 Nh8 f7 Qe3 f8R+ Nf7 Bdf3 Qb1 Bd1 Qf3 Nh7 Ke4 Bg7 Qb2 Rh8 Qb3 Qdg2 Ke3 Qg4 Bf5 Ng5 Qe4 Rh7 Qd3 Ne2 Qb2 Nd5+ Kd2 Nef4+ Kc1 Qge2 Kb1 Qe3 Qb6+
2N3NR/P5K1/P2q3r/5n2/krQqp2R/PbQ4n/r5NR/2bqBrBB w - - 0 1 illegal: No possible last move
b1N1Q3/K4n2/B1NQ1Q2/1Rn4n/r1nq1p2/1r1PRRn1/2n1PPBB/k5b1 w - - 0 1 legal: proof: h4 e5 a4 g5 Nh3 gxh4 Rh2 b5 axb5 d5 Ng1 e4 Rh1 e3 dxe3 d4 Nf3 d3 cxd3 Ba6 Ng1 Bc8 Kd2 Kd7 Kc3 Ke6 Kc4 Ke5 g4 f5 b4 c5 g5 a5 g6 h5 b6 a4 Kb5 h3 e4 Kd4 g7 a3 e5 h4 e6 c4 b7 c3 e7 c2 e8R h2 Nh3 a2 Re3 Bd6 Nf4 h3 Na3 Kc3 Rb1 a1N Ng6 Na6 b8Q Nc5 Bg2 Nh6 g8B Nf7 Nc4 Ra4 Nce5 Bb7 Nc6 Ba8 Nge7 Rh6 Rg1 h1N Nc8 Bh2 Qd6 Ng3 Ba3 Qf6 Kb6 c1N b5 Nc2 Bb2+ Kb3 Be5+ Ka2 Qe1 Rh5 Qc3 N1b3 Qcd4 Na5 Ka7 Rg5 b6 Nh5 b7 Qd8 Bg3 f4 b8Q Rg7 Rh1 Bg1 Bh2 Rh7 Rb2+ Ka1 Q4f6 Rg7 Rf3 Rg5 Rb5+ Re5 Qf8 Qd4 Qbd6 Re4 Qe8 Ra3 Bh7 Rb3 Bf5 Nc4 Nb6 Rb4 Bc8 Ra4+ Ba6 Re5 Qed7 Re8 Re3 Rb8 Nc8 Rb6 Qe8 Rb8 Ra5 Rb3 Rb5 Nfe5 Bg3 Nf7 Rh2 Ng5 Bf3 Nf7 Rg2 h2 Bd5 h1N Bh2 Rc3 Rgg3 Rca3 Bg2 Rb3 Rgf3 N1g3
r7/rQ2K2r/1B1BpbqP/3Qn1R1/1P2N2n/4P1rN/1Rr2b1k/1Q2R1rB w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 f3 hxg4 Na3 g3 Nb1 g2 Nc3 g5 Nb1 g4 Nh3 g3 Ng1 Bg4 fxg4 Qc8 Qa4 Qd7 Qd1 Qd8 d4 Kd7 Kd2 Kd6 Kd3 a5 Ke4 c5 Kf5 a4 b4 f6 h4 a3 g5 c4 h5 a2 h6 c3 b6 c2 g6 Qe8 g7 Nc6 b7 Ne5 Nh3 g1B Rh2 g2 Bf4 c1R Nd2 Rc2 Qb1 Rh7 e3 Bf2 Ba6 g1R b8Q+ Kd7 d6 Rg3 d5 e6+ Ke4 Ne7 g8R N7g6 Bb7 Nh4 Rg5 f5+ Kd4 Qf7 Ne4 Bg7 Qc7+ Ke8 d7+ Ke7 Qb6 Qg6 d8Q+ Kf7 d6 Ra7 d7 Ra8 Qd1 Ra7 Rc1 a1R Qd3 R1a5 Re1 Ra8 Qbb5 R5a7 Qda5 Ke7 d8B+ Kf7 Bb6 Ke7 Nc3 Kf6 Kc5 Nc4 Bb8 f4 Qaa6 Ne5 Kd6 f3 Qd1 Qd3+ Qd5 Qg6 Rg4 Kf5 Ke7 Bg1 Rg2 f2 Qb1 f1R Ne4 Bf2 B8c7 Rg1 Bc6 Qh5 Qb7 Qg6 Rh2 Rf3 Rgg2 Rg3 Bd6 Kg4 Re2 Rc3 Rb2 Rc2 Rh1 Rgc1 Rgg1 Kf3 Re1 Kg2 Rhf1 Kh2 Rg1 Rf3 Rg5 Rg3 Bb5 Rd1 Bf1 Rdc1 Bg2 Rd1 Bh1 Rdc1 Re2 Rcg1 Re1 Bf6+
b2N2R1/nr2Q1n1/7r/1N4qr/2nQKrBP/pRP1B1NB/P4R2/n3k2b w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 e4 g6 f4 Qc7 e6 Bd6 e5 Kd8 f5 Be7 f6 Qa5+ Nc3 Kc7 fxe7 Qb6 Nb1 Kc6 Ke2 Qc7 Ke1 Qd8 Ke2 Kb5 Ke3+ Kb4 e8B a5 h4 f5 c6 b5 e7 d5 c7 d4+ Kf4 d3 e6 d2 Bd3 a4 Ke3 g5 Rh3 a3 Nc3 g3 Bf7 f4+ Kf3 g4+ Ke4 f3 e8Q g2 e7 f2 Bb3 f1R Ba4 g3 Qe2 d1B Bc4 Rh5 Bh6 Ra7 Bg5 Bb7+ Qc6 Ba8 c8R Rf3 e8N Nf6+ Ke5 Rb7 Qc7 Nc6+ Ke6 Na7 Ng7 Ne8 Bh6 Qg5 Qf1 Be2 Nf5 Ng7+ Ke5 Bd1 Nge2 g1N Bd3 g2 Nd4 Ne2 Ke4 g1R Qf2 Nc1 Rg8 Nb3 Bf1 Rgg3 Rc1 Na1 Ne6 Be2 Qg1 Bc4 Nd8 Bd5+ Kd4 Rg2 Ng3 Re2 Qf2 Re6 Qe7+ Rd6 Rh2 Re3 Rf8 Qg6 Bf4 Qg5 Bb3 Bh1+ Bd5 Rf3 Rg8 Ne8 Bh3 Ng7 Qe5 Rc6 Ke4 Rch6 Bc6 Kc4 Qe7 b4 Bcd7 b3 Nb5 b2 c3 b1N Rc2 Rhb6 Bdf5 Rbh6 Rb2 Nd2+ Ke5 Ne4 Rb3 Kd3 Bd2 Kc2 Qd4 Kd1 Be3+ Ke1 Rf2 Nd2 Kd5 Nc4 Ke4 Rc6 Bd7 Rch6 Bdg4 Rf4+
Q1r4Q/N1Qb4/n1q2nRb/4bp2/R1PBBNBN/nPb1PK2/n6r/5k2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 c4 Ke6 h4 Kf5 e6 Kg4 b6 d5 e7 g5 e8B a5 h6 f5 h7 a4 h5 a3 b7 a2 h6 d3 b3 d2 Bc6 d4 Bb5 d3 Qc2 d1N+ Kg2 d2 e3 Qd5+ Nf3 Bd7 Rg1 Nc3 Bc6 d1N Na3 Nb1 Bb2 Na6 b8Q Nf6 Qc7 Ndc3 Nb5 Rc8 Na7 Na3 Be2 Qd6 Kf2+ Kh3 Qe4 g4 Nh4 g3+ Kf3 g2 Qe8 Bg7 Be4 Qc6 Qf8 Ncb1 Bd4 Nc3 Qb4 Bf8 Qbb7 Bg7 Qa8 Bf8 Rac1 a1B Rcd1 Bb2 Ra1 Na2 Bd1 Bc3 Be2 Rg8 h8N Bg7 h7 Bh6 N8g6 Rh8 Nf4+ Kh2 Rgf1 g1B Bd1 Bf2 Rg1 Bfe1 Rg6 Bg3 Qcb8 Kg1 Qc7 Rhf8 h8Q Kf1 Nd3 Be5 Nf4 N2b4 Ra2 Rf7 Ra1 Rh7 Ra2 Nac2 Ra4 Na3 Kg3 Na2 Bg4 Bf8 Kf3 Bg7 Nhg2 Rh2 Nh4 Bh6
bN1kbr2/nqrNn3/R1B2nBQ/2P1PP1R/1B3K1p/Q1Rb4/2Nb2n1/8 w - - 0 1 illegal: No proof kernel
Q1B2BNn/r2K1Q1R/n1q2bPR/1p1n4/1B1Pb3/nbN4Q/b4P1N/k1r5 w - - 0 1 illegal: No possible last move
Qb2Nk1B/1nP1brr1/2BQp3/b3rb1q/2R5/P1n1KRNB/5P2/r3Q1R1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 b5 c4 d5 h4 g5 f6 d4 a6 b4 h5 b3 c6 b2 a3 d3 a7 g3 h6 g2 c7 g4 c5 g3 c6 Nd7 h7 Nc5 Qa4 Qd5 Qe4 Bf5 c8B e6 Rh4 Ne7 Rh3 Rg8 h8R Rg7 Qe1 Nb7 Ke3 d2 R8h4 d1R Nc3 b1R Nge2 g1B Bb2 g2 Ng3 Bh2 Rc4 g1B Nce4 Qb5 Bg2 Rd5 Bd7+ Kf7 Bf1 Re5 Bd4 Rc8 a8Q Rc7 Bb2 Qd5 Bg2 Qd1 Bd4 Qh5 Bc3 Rd5 Nd6+ Kg8 Ne8 Re5+ Kd4 Nd5 f7+ Kh7 Bb2 Be7 f8Q Nc3 Bf1 Bh4 Qd6 Kg8 Bg2 Be7 Bf1 Kf8 Bg2 Rb5 Ke3 Rf7 Nh1 Be5 Rf3 Bgh2 Ng3 Rd1 Bh3 Bd4+ Kf4 Bb6 Rc1 Ba5 Ke3 Ne4 Bh8 Nc3 Qe2 Rh1 Rg1 Rg7 Qe1 Rd5 Rg2 Rf1 Rg1 Rc5 Qe2 Ra1 Qe1 Re5+ Ne4 Rd5 Qe5 Bc5+ Qd4 Bhd6 Ng3 Ba7 Qb6 Bb8 Qd4 Rc8 Qd3 Rd8 c7 Re5+ Re4 Bdb4 Bc6 Rdd7 Qdd1 Rdf7 Qd4 Be7 Qd6 Rd5 Rc4 Re5+
1N1QB3/pb3qQ1/3nQ2P/1N1b1P2/Kb2RBn1/rN4R1/3nrPb1/nk2B3 w - - 0 1 illegal: No possible last move, all moves rejected
RR1n3K/1pPNn3/4QBk1/rP2q3/1q1q1Rq1/2B1rq2/B3rP1Q/1b1NN3 w - - 0 1 illegal: No proof kernel
NN1KB3/1r1rN2P/1pr2q1Q/1Q2BR2/1P1bRb1b/1b1Pb1Q1/3n4/2R1q2k w - - 0 1 legal: proof: e4 d5 a4 f5 exf5 h5 c4 b6 cxd5 Nd7 g4 hxg4 a5 Nc5 a6 Nb7 axb7 Qd7 Ra5 Qd6 Ra1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 b8Q g5 b4 a5 f4 c5 h3 Kg3 h4 c4 h5 a4 h6 c3 h7 a3 d6 a2 d7 c2 Ke6 Ra7 f6 Bh6 f5+ Rc7 f7 Nf6 f8Q Ne4 Bb2 c1R Bb5 Kg2 d3 g3 f6 g4 f7 Bf4 Qa4 Nd2 Qh6 R1c4 f8R R4c6+ Kf7 e5 Na3 e4 Nh3 e3 Rac1 a1B Rhe1 e2 Be5 Qf6+ Ke8 Bd4 d8N Be6 Qa6 Bg8 Ba4 Kh2 Nb5 g2 Qa5 Rb7 Nc7 g1B Na8 g3 Qb5 g2 Qd6 Rcc7 Nc6 Bge3 Nb8 g1Q Rf7 Kh1 Rf8 Bh2 Nf4 Bb3 Ng6 Rg8 Ne7 Rg6 Kd8 Qgf1 Red1 e1B Rf7 B1f2 Re1 Bh4 Rf8 Bhf4 Re2 Bf2 Re4 Qe1 Rf7 B2e3 Rf8 Qe6 Rf5 Rf6 Qa6 Qf7 Be8 Re6 Qb5 Qf6 Qdd7 Rec6 Qd6 Qg7 Qdg6 Qf6 Qg3 Rd7+
7B/p2P3b/1k1Nr2q/2b4R/Pb1QbKBq/2N3Qr/r2n1PR1/1b1R1QN1 w - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 Nc6 Ke2 Nd4+ Ke1 Ne6 gxf5 dxe4 Rh3 g4 Rh1 Ng5 hxg5 Bh6 Na3 Bg7 Nb1 Bf8 Ke2 Kd7 Ke3 Kc6 d4 e5 a4 h5 c4 b5 f6 b4 g6 b3 f7 g3 g7 h4 Nc3 h3 Nd5 g2 Qf3 h2 Ba3 b2 Be2 b1B Bb2 Qh4 Qg3 Bf5 Bg4 Rd8 Nc3 Nf6 g8R Bh7 d5+ Kc7 c6 Kb6 c7 Bc5+ Ke2 e3 Kf3 e2 c8Q e1Q f8Q e4+ Kf4 e3 d6 e2 d7 Re8 Qg7 Ne4 Qd4 Nd2 Rg7 Qc1 Qa6+ Kc7 Rg8 e1B Rg5 Re6 Rg7 Ba3 c5 Bb4 c6 Bc5 Qf1 Kb6 Nf3 g1R c7 Qc2 Rg5 Qg6 Rh5 Qh6+ Rg5 Kb7 c8N Kc6 Nd6 Kb6 Qgh3 Rg3 Ng1 Rhe8 Qhg2 Rh3 Qg3 Re2 Qf3 R8e6 Qg3 Bbc2 Rd1 Bcd3 Nf3 Bb1 Rg1 h1B Rg2 Q6h5 Ng1 Qh6 Rh2 Bh1e4 Rg2 Nf3 Ba1 Ra2 Bb2 Nd2 Ba1 Qg7 Rh5 Qg6 Bb2 Qh6+ Rg5 Rg6 Ncb5 Bbc2 Qde3 Nf3 Bh8 Bb1 Qd4 Bb4 Nc3 Re6 Rd2 Qg7 Rd1 Nd2 Rh5 Qh6+
Q3NK2/1R1b3q/1B2k1PQ/2bpr1B1/r2P2Nq/1B2nrR1/4bqRP/2bQ4 w - - 0 1 illegal: No possible last move
1KnN4/n2q4/QB1qp1N1/RQ6/1BQ1B2b/1b1bPPP1/q2nR1r1/1N1k1q2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 f4 g3 fxg3 Nf3 g2 Ne5 g1N Ra6 g5 Rf6 a5 Rf3 g4 Ra3 g3 Nf3 g2 Ra1 Ra6 Nc3 Rg6 Nb1 Rg3 hxg3 Ba6 Qa4 Bb7 Qd1 Bc8 b4 Kd7 d4 Kd6 Kd2 c5 Kc3 h5 Kc4 h4 b6 h3 Kb5 h2 e3 a4 b7 c4 Na3 e6 Nh4 c3 Qb3 c2 Qc4 Nf3 Ng6 g1Q Bd3 Ne7 Be4 Nbc6 Ka6 Na7 b5 Qd1 b6 Nd2 Re1 h1B Re2 Rh2 Nb1 a3 Bb2 c1Q Bc3 Bd7 b8Q+ Qc7 b7 a2 Qc8 Rg2 b8Q Ba4 Qbb7 Bb3 Qbb5 Qd7 Kb6 Qa3 Qca6 Qf1 Ba5 Bh6 f3 Bg5 Bc3 Bh4 Ba5 Qe8 Bc3 Nec8+ Kb7+ Qc6+ Kb8 Qc5 Qaa4 Qd7 Qa3 Rh2 Bb4 Bg2 Qaa5 Bh3 Nf8 Bf5 Qaa6+ Ke7 d6+ Kf6 d5 Ke5 Qab7 Rg2 Q7b6 Qg7 d7 Qd6+ Ka8 Bg6 d8B Qgd7 Q6a6 Bf5 Bc2 Bd3 Bb6 Q6c7 d6+ Qc5 Nc3 Qd5+ Kb8 Qc5 Rc1 a1Q Nb1 Qa2 Rd1 Qe7 d7 Qe8 d8N Qd7 Ng6+ Kd6 Qg4 Kd5 Na3 Bg5 Ra1 Bh4 Qba4 Qce7 Nb1 Qf8 Qf4 Qfe7 Qc7 Qed6 Q4b5+ Qc5 Qf4 Bdc4 Nb7 Qa3 Bf5 Bd3 Qba4 Qcc6 Qc7 Qcd6 Nd8 Qb2 B6c5 Qc2 Q4b5 Qb2 Ra5 Qa2 Qbb6 Bb5 Be4+ Kc4 Bd5+ Kd3 Qbb7 Kc2 Be4+ Bd3 Qbb5 Q6e7 Bb6+ Kd1 Qcc4 Qed6+
r2R1N2/3Q2Br/2Q4q/1n1p1q2/rqPB2b1/1k1b4/1P1PR1Qb/1BKrN1R1 w - - 0 1 illegal: No possible last move, all moves rejected
1r3N2/pR1Rrb2/P2Qn2K/nNB1Q1Q1/1n2N1Pn/R3q3/r1k2P2/3n1B1n w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 f4 g3 fxg3 Kd2 g5 Bg2 g4 Na3 Be7 Ke1 Bh4 Bh3 g2 Nb1 g3 Nf3 g1N Bf1 g2 Bd2 Kf7 Bc1 Bg3 hxg3 Ke8 Kd2 Ke7 Ke3 Ke6 Kf4 h5 c4 d5 e4 b5 a4 b4 c6 d4 c7 h4 a5 d3 c5 d2 a6 b3 g4 b2 c6 h3 Na3 b1N Nh4 h2 Nb5 Nd7 Ra3 Nc5 Ng6 Bd7 c8R Nf6 Kg5 Qe8 c7 Nd5 Rd8 Rh7 c8Q Re7 Kh6 Rb8 Qb7 Bc6 Rd7 Nf3 Qc8 g1R Qd8 Nb4 Nf8+ Kf7 e6+ Kf6 Rb7 Ke5 Rd7 Kf4 e5 Ke4 Bb2 Nh4 Bd4 Bd5 Qa5 Rf7 e7 Ne6 Bc5 Rg3 Rg1 h1N Qd8 Rd3 Qc1 d1N Qg5 Rh3 Rgg3 Nd2 Rgb3 Nc4 Qc7 Nce3 Qd6 Nc4 Rb2 Na5 Rb1 Qc8 e8Q Re7 Qeh5 Qe8 Rb2 Nf4 e6 Re3 Rb1 Re2 Rbb3 Ra2 Rb1 Rg7 e7 Bf7 Rb2 Ne6 Rb1 Qc8 e8N Qb7 Rbb3 Qd5 Rb2 Qd3 Rb1 Qe3 Rbb3 Bg8 Rb1 Re7 Nf6+ Kf3 Ne4 Bf7 Bg2+ Ke2 Bh3 Ke1 Bf1 Ng2 Qhh2 Nh4 Qhe5 Nd4 Nec3 Kd2 Ne4+ Kc2 Nc7 Nbc6 Rb7 Nb4 Nb5 Ne6
4Nr2/BKPbRb2/2R2Q2/2rp4/1N1QBQ2/kr4r1/n2PRBPb/1b4qr w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 bxc5 exf4 a3 Nc6 a4 b4 Nh3 Nd4 Ng1 Nb5 axb5 Bh6 Nh3 Bg7 Ng1 Bf8 Kf2 Ke7 Kf3 f5 c4 a5 e4 h5 b6 d6 g6 h4 g7 a4 e5 b3 e6 h3 c6 h2 b7 a3 b8B a2 c7 b2 c5 Ra3+ Nc3 b1R c6 Rh5 Bd3 Rb2 Nh3 Nf6 g8Q Nd5 Qa4 Rbb3 Nb5 Nb4 Qg4 Bd7 c8Q Qb6 c7 Qg1 Bb2 Bh6 Rb1 a1R Bd4 Na2 Qca6 Rg5 Rb2 Rf1+ Bf2 Bg7 Rb1 Be5 Qd4 Ra5 Qc6 d5 Nd6 Rc5 Re1 Rg8 Ke2 f3+ Ke3 Be8 Qa6 Bf7 Qgf4 Rg3 Ne8 Bd6 Ba7 Be5 Nf6 Bd6 Re2 Be5 Qac4 Kd6 Qcc3 Kc6 Bb1 Kb5 e7 Bd6 e8R Be5 Qg5 f4+ Kd3 Bd6 R8e7 Be5 Ne8 Bd6 Qde5 Ka4 Kd4 Ka3 Qgg7 Rb5 Be4 Rc5 Be3 f2 Qgf6 f3 Qef4 Ra1 Qd3 f1B Nf2 Rac1 Qc4 Rd1 Nd3 f2 Nb4 Rc1 Re1 Bd3 Re2 f1B Bf2 Bb1 Qd3 R1c3 Qc4 Rcf3 Qd3 Rc1 Qc3 Be5+ Kc5 Rc2 Kc6 Bd6 Re3 Bb5+ Kb7 Bd7 Qcd4 Rc5 Re1 Rg8 Re2 Rf8 Qe6 Rg3 Qef6 Qc1 Rhe1 h1R Re6 Be5 Rc6 Qd1 Bf3 Bd6 Re7 Be5 Re2 Qg1 Be4 Rg6 Qh6 Bh2 Qhf4 Rgg3
k3q2b/q3PbnQ/KQ1p2b1/4QR2/5bRq/N4NRq/B2PrB1P/2B1n3 w - - 0 1 legal: proof: g4 e5 f4 exf4 b4 h5 gxh5 a5 a4 b5 axb5 a4 b6 Qe7 c4 Nf6 c5 Ra6 b7 Qd8 b5 Rb6 cxb6 Ng8 e4 g5 Ke2 f5 Kd3 c5 Kc4 f3 e5 a3 h6 d6 e6 f4 h7 g4 Qb3 g3 Bd3 g2 Qa2 f2 Nc3 f1B Be2 f3 Ne4 f2 Qb1 a2 Qb2 Nf6 Ng3 Na6 b8R Bh6 b7 Bf4 b6 Nb4 Kb5 c4 Ra8 c3 b8B c2 b7 Nd3 Ba7 Ne1 b8Q Nh5 Rb1 a1B Qb6 Qh4 Nf5 Ng7 Nf3 g1Q Bc4 Bd3 Ne3 f1Q Qe5 Bg6 Rb4 Qfh3 Ba2 Ke7 Rb8 Re8 h8Q Bb7 Ra8 Bd5 Nc4 Bd4 Na3 Bb3 Bb2 c1Q Ka6 Qc6 Qh7 Qe4 Rc8 Qgf2 Rc7+ Kd8 Rf7+ Kc8 Rg1 Re7 Rf5 Qc6 Ra4 Qe8 Bc1 Ba1 Qbe3 Kc7 Bd4 Kb8 Rg3 Ka8 Ba7 Bc3 Qb6 Qc5 Qa5 Qc7 Bf2 Bb2 Qb6 Ba1 Ka5 Qa7+ Qa6 Bc2 Qd4 Nh5 Qhh8 Bb3 Qh7 Be5 Qc3 Bh8 Rag4 Ng7 Qc5 Be5 Qe3 Rc7 e7 Rc3 Qd4 Re3 Qc3 Bf4 Qe5 Qg8 Kb5 Re2 Qa5 Bbf7 Qb6 Qab8 Ka5 Qge8 Ka6 Qa7+
1RQQ1nN1/7p/4n1BR/1P3n2/k1bq1BqQ/P1rb3N/4B1bP/1nb3RK w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 f4 g5 fxg5 b4 Qd3 Ra6 Qd1 Rb6 b3 Rb5 cxb5 a4 Qd4 axb3 Qd5 Bb7 Qd1 Bc8 Kf2 d5 g4 Kd7 Kg2 c5 e4 f5 e6+ Kd6 g6 f4 e7 b2 e8Q f3+ Kf2 c4 e5+ Kc5 g5 c3 e6 d4 e7 b3 g7 Kb4 a3+ Ka4 g6 d3 Qc6 c2 e8R d2 Qe4+ Qd4+ Kg3 f2 Kg2 Be6 Qh4 Nh6 g8B Nf5 g7 Bc4 Bf7 Nd7 g8Q Bh6 Rb8 Nf8 Be2 Be3 Nh3 f1B+ Kf3 Bg5 Rg1 Be3 Bg6 Bf4 Qde1 d1Q Nd2 b1B Ne4 b2 Qc3 Bg5 Be3 c1N Nf6 Nb3 Bf4 Bbd3 Rc1 b1N Qd5 Nc5 Ng8 Nce6 Qd8 Bb3 Qcc8 Bbc4 Rc3 Bh6 Be5 Bc1 Bf4 Bb3 Rc6 Bbc4 Nh6 Rg8 Rcb6 Rg7 Ng8 Rc7 Bf7 Neg7 Rh6 Nge6 Be8 Qg7 Kf2 Qg4 Bg6 Qd2 Rg3 Qb2 Kg1 Qd4+ Kh1 Bb3 Bd1 Rc3 Be2 Bbc4 Rg1 Bg2+
4r1kn/3P2P1/Kb2n2p/N1B5/2r4b/bRn1NBbP/nR1BN1b1/QR2Q3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 c6 f4 gxf4 d4 Na6 e4 Bf5 e5 Bc8 d6 Nb8 d5 Bg7 Ke2 Kf8 Ke1 Qd7 e6 Bh6 exd7 Kg7 Qe2 Kf6 Qd1 Bf8 Kd2 Kg7 Kc3 a5 Kc4 e5 d8Q f5 g4 a4 b4 c5 b6 f3 Kb5 f4 g5 e4 b7 e3 d7 f2 g6 f3 h3 h6 d6 c4 Bb2+ c3 Be2 f1N Qd2 a3 Qc1 f2 Bf3 a2 Rh2 e2 Bh1 e1B Na3 Ne7 Qf4 Ne3 Rc1 a1B Qh4 f1N Bf3 Kg8 g7 c2 Ne2 Ra4 Nc4 N3f5 Bc3 Na6 b8N Bb7 Qa5 Nd2 d8B Bg3 d7 Nb1 Nc6 Ng6 Bd2 Bd4 Be7 Bb6 Bc5 Be7 Ne3 Bf6 Qd4 Bfh4 Qa1 Ba8 Rd1 c1B Rg2 Ba3 Rc1 Ne5 Rc3 Nf7 Rb3 Ne7 Rh2 Nd5 Rh1 Nf4 Rc1 Bc7 Rc2 Ne6 Rcb2 Bb8 Kb6 Nc3 b5 Nb4 Qe1 Nba2 Ka6 Bbd6 b6 Rc4 b7 Bc7 b8R+ Bcd8 R8b5 Bdc7 Qa4 Bb6 Na5 Bd5 Bh5 Bg2 Bf3 Kh7 Rb1 Re8 R3b2 Kg8 R5b3 Bb4 Qa3 Nh8 Qa4 Nc1 Qa2 Ba3 Qa1 N1a2
2Q1bnr1/1QB3Np/b1N2N1P/1b3n2/3bPrRP/2RQ1B2/nBr1r3/1K2k3 w - - 0 1 legal: proof: c4 e5 f4 exf4 g4 d5 cxd5 b5 h4 Bb4 a4 Qg5 axb5 Qh5 gxh5 Bf8 e4 Ke7 d4 Kf6 Kd2 a5 Kc2 c5 b4 g5 d6 g4 d5 Ke5 b6 f5 h6 f3 d7 g3 d8N g2 b5 c4 d6 f2 b7 a4 b6 a3 d7 f4 Bb2+ c3 Qf3 Kd4 Bc1 a2 Nd2 Bc5 Be2 f1B Bd3 Ne7 Qd1 Ke3 Nb1+ Kf2 Nc6 f3 d8B Rf8 Bb2 Bd7 Ne2 g1R Ng3 Be8 Bc7 Nd7 b8Q Nf5 b7 Rg2 Rg1 Bd4 Be2 Rf6 Qd2 Nf8 Qd3 Ke1 Qc8 f2 b8Q Rh2 Kc1 c2 Nc3 Rg2 Rb1 a1R Nh5 R1a2 Bf3 Rg8 Rg5 R8a3 Nd5 Rc3 Rg7 Be2 Qa7 f1B Rg4 Rc5 Ng7 Rf7 Qda6 Bb5 Q7b7 Bfe2 Qa3 Ba6 Qab3 Beb5 Nf6 Rc3 Ra1 Re3 Qd3 Re2 Nb8 Ra3 Nc6 Rc3 Ra3 Rc5 Ba1 Rc3 Kb2 c1N+ Kb1 Rcc2 Rc3 Na2 Bb2 Nd6 Nfh5 Rf4 Nf6 Nf5
R2b3B/2bp2BR/Q7/8/1nr1kP2/nPPn2Q1/2p1N1RK/Nr1BrbNq w - - 0 1 illegal: No possible last move
R3N1Rr/bPrn1p1k/n7/rPRQ3B/5P2/B1K1b1Q1/1N1q1pn1/Bb3N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 d5 cxd5 b4 Qb3 e4 Qf3 b3 axb3 exf3 b4 Bf5 b5 Bc8 d4 a5 Kd2 g5 b4 c5 h4 f2 e4 g4 e5 c4 h6 a4 e6 a3 h7 g3 d6 a2 h5 g2 e7 Bg7 b6 Nc6 h6 Na7 b7 Qa5 d5 Nf6 Nf3 g1N Nh2 Qc5 b5 Qa3 Nc3 Qc5 Na4 Nf3+ Kc3 Ne1 Nb2 Nc6 Be2 Bf5 Bh5 Nb4 Nf1 Na6 Rg1 Bf8 Rg5 Bb1 Re5 Nd7 Rf5 Rg8 h8Q Rc8 h7 Rc7 Qg7 Ng2 h8B Qb6 Qg3 Qe3+ Nd3 Qe2 Ba3 Qd1 Nb2 Qe2 Kd4 c3 Bg7 c2 Bh8 Ndc5 Kc3 c1B Bd4 Rh8 Bg7 Kd7 e8N Be3 Bd4 Kd8 d7 Ke7 d8R Bg7 d6+ Kf8 d7 Kg8 Rb8 Kh7 d8Q Nd7+ Rc5 Bf8 Qdg5 Be7 Qd5 Bd6 Rc6 Bc5 Ra8 Ba7 Rc5 Bd3 Rd1 a1R Bf6 Bc2 Rd4 Qd1 Re4 Bb1 Re5 Be4 Rg5 Bb1 Rg8 Qd2+ Kc4 Ndb8 Nd1 Kh6 Bb4 Ra4 Ba1 Nd7 Nb2 Ra5 Ba3 Kh7 Kb3 Qd1+ Kc3 Qd2+
1Q3RN1/7q/1KR1N1kn/2nb1R1N/1bQ4r/r1nP1p1B/1pq1PP2/3Q2rB w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 Qd7 b4 Qd6 bxa5 Qd8 d3 e5 Kd2 h5 gxh5 e4 Kc2 e3 Bd2 exd2 Kb3 b5 a4 g5 h4 f5 a6 Kf7 h6 c5 d6 c4+ Kb4 c3 Kc5 b4 h5 g4 a5 c2 a7 c1R+ Nc3 f4 h7 b3 h6 b2 a6 g3 Ra5 g2 Nh3 Qe7 Kb6 g1Q d7 Qg7 d8N+ Kf6 Nd5+ Kf5 Ne6 Qe8 Nf6+ Kg6 Rf5 Ne7 Ng8 Qa4 Bg2 Qc2 Rg1 Qf6 Bh1+ Kf7 Rg6 f3 Nf4 Bb7 Nh5 Be4 Rb5 Qg7 Rf5+ Ke8 Rgf6 Bd5 Rg6 Nbc6 Rgf6 Nb4 Rg6 Rc8 a8B Rc3 a7 Na6 Bb7 Ra3 Bc8 Nc5 a8Q Rb1 Qb8 Qf7 Qg1 d1N Qc7 Nc3 Qd1 Rc1 Qf4 Rb1 Qc4 Rba1 Nd8 Rc1 Rc6 Qg6 Ne6 Qg7 Nhf6+ Kf7 Nh5+ Kg6 Ngf6 Rg8 h8Q Qh7 Bd7 Rg7 Ng8 Rf7 Qe5 Rb1 Qb8 Rba1 Re5 Rf4 Rf5 Rh4 Bc8 Qh8 h7 Rc1 Qd2 Rg1 Qd1 Qg7 h8R Qh7 Nh6 Ng8 Bd7 Nf6 Bc8 Be7 Rf8 Ng4 Ng8 Nh6 Re5 Bf6 Nd8 N3e4 Be6 Bg5 Bh3+ Bf6 Ne6 Bh8 Ref5 Bc3 Qd4 Bb4 Qc4 Nc3
BQ2Kqqk/1br2R2/1n2B1RN/n3N2p/2P3nP/1p2bRP1/r2Q1q2/B5Q1 w - - 0 1 illegal: No possible last move, all moves rejected
Q7/Rr3rB1/b4QB1/2p1bNQN/5B1P/2q1p1q1/kP2NPRb/qn3K1n w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kf7 d4 g5 f6 c5 d6 Ke6 d7 Kd5 f7 e5 b6 a5 b7 g3 Nd2 a4 Qc2 e4 Be2 g4 Qc3 g2 Qg3 e3 Ba6 a3 Nb1 a2 Na3 Ne7 Bd2 Ra7 Rh2 Rh7 Nb5 Kc4 d5 Kb3 d6 Bg7 f8Q Qa5 d8N Nf5 d7 Nc6 b8B Rb7 Ne2 g1B Ne6 Nce7 d8Q Be5 Nd6 Nd5 Kf1 Nc3 Bd3 Rhf7 Qf6 Nb1 Ng7 Qc3 Rg2 Bh2 Qf4 g3 Nh5 Rbe7 Be4 Ba6 Q4g5 Ra7 Bc7 Rb7 Qa8 Nh6 Bg6 Nf5 Rg1 g2+ Ke1 Qa5 Bc3 Ng3 Nf5 Nh1 Bd6 Bd4 Bf4 Be5 Rf1 Qa3 Bd4 g1Q Bc3 Qg3 Rg1 Qa4 Kf1 Qb4 Bd4 Qc3 Rg2 Bb8 Qe7 Bc7 Bg7 Be5 Qef6 Na3 Rd1 Nb1 Rd7 a1Q Rc7 Ka2 Rd7 Rb4 Ra7 Rbb7
1R4bN/R5Q1/BB1k1pqr/2N2P2/QP3n2/K1B4n/Rq1rrPbp/5N1q w - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 c4 gxh4 cxd5 Bh6 e3 Bf4 exf4 Bf5 Ra2 Bd7 Ra1 Bc8 d4 Kd7 Kd2 c5 Kc3 a5 Kb3 e5 g4 h5 b6 e4 d6 a4+ Ka3 h3 b4 e3 d5 h4 b7 f6 g5 h2 g6 c4 g7 h3 f5 c3 Bc4 c2 Kb2 a3+ Kb3 a2 Kb2 e2 Bd2 e1R Ne2 Na6 b8R Rh6 Nf4 Qe8 Bc3 Nc5 Ne6 Re2 Nd2 Qg6 Ba6 Nd3+ Ka3 Ne7 g8Q Nf4 Nf1 Rd2 Rg1 h1B Qg7 h2 Rg5 Bg2 Nc5+ Kd8 d7 Kc7 d8B+ Kd6 Ba5 Be6 Bb6 Nh3 Rg3 Bf7 Re3 Bg8 Re2 Rd4 Rd2 c1Q+ Rb2 Qb1 Qa4 Rd2 Rc2 Nc6 Rb2 Nd4 Rc2 Ra7 Rb2 Re7 Rc2 Ke5 d6 Re8 d7 Kd6 d8N Ne2 Rb2 Nef4 Rc2 Ree2 Nf7+ Ke7 Nh8+ Kd6 Rb2 Qe4 Re1 a1Q+ Ra2 Qd5 Rd1 Rb2 Rd4 Rbd2 Re4 Qa8 Re7 Qe4 Ra7 Qeb1 Ne3 Qh1 Nf1 Qb2+
1N5k/R1Q1nQ2/1K2qp1P/3rqBb1/rRP1B2p/1qB2Q1P/n1n4b/1N4N1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 fxe5 h4 d4 cxd4 Kf2 Bb7 Ke1 Be4 Ra2 Bg6 Ra1 Bh5 gxh5 Be7 Bg2 Ba3 Bf1 Bf8 Kf2 d5 c4 g5 b4 a5 e4 d3 Ke3 d4+ Kf2 d2 b6 d3 Ke3 f6 b5 Kf7 e6+ Kg7 h3 g4 b7 a4 e7 a3 e8Q g3 e5 g2 b6 a2 e6 Qd5 e7 Na6 b8N Nb4 b7 Qe6+ Kd4 Nc2+ Kc5 Ra4 Qf3 d1N Bb2 d2 Bd3 Nc3 Be4 d1Q Rh2 Rh6 Qf7+ Kh8 Rh1 Bg7 e8B Ne7 Bd7 Rg6 Bc8 Bh6 Bd7 Bg5 h6 Rg8 Rh2 Rd8 Bc8 Qe5+ Kb6 Rd5 Bcf5 Qe6+ Nc6 Qd7 b8Q+ Qc8 Qc7 Qe6 Ne2 g1B+ Rf2 Qd7 Nb8 Bh2 Ng1 Qe6+ Qc6 Ne2 Bc3 Nc1 Rd2 Rc5 Rd7 Rd5 Ra7 Qd3 Na3 Qd1 Rb1 a1Q Rb4 Na2 Nb1 Qb2 Qd6 Qb3 Qc6 Qe1 Qd6 Qg3 Qc6 Qge5 Qd6 Qc8 Qc7 Qce6+
r1r5/2nB4/2QP3r/1pR1R1q1/PP1kn2b/1Bb4Q/R3bpN1/B1NK2Nq w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 h4 Kd7 a4 Kd6 e4 Ke5 d4+ Kd6 b4 b5 h6 g5 e5+ Kd7 e6+ Kd6 h5 c5 h7 f5 h6 g4 e7 c4 e8B f3 Nc3 f4 Kd1 g3 Qb7 g2 Bb2 f2 Nce2 c3 Ra2 f3 Ba1 Qh4 Nc1 Be7 Bc4 Nf6 Bd7 Na6 Bb3 Qg5 Rh3 Nc7 Rh5 Qe5 Rg5 Ne4 Rf5 Bh4 Qc6+ Ke7 Rh5 Qg5 d6+ Kf6 d5 Ke5 Bh3 Ne8 d7 Nc7 d8N Kd4 d6 Be6 Bf5 Bc4 Bd7 f1R+ Kc2 Rg8 h8R f2 h7 Re8 Rf8 Be2 Rf5 Re6 Re5 Rh6 h8Q Re1 Nh3 g1Q Qh7 Qh1 Ng1 Rd1 Qf5 Rd3 Qg4 Rf3 Qh3 Rf8 Rc5 Qg7 Rhe5 Qg5 Nf7 Rfd8 Nh8 Rdc8 Ng6 Bc4 Nf4 Be2 Qh2 Ke3 Kb1 c2+ Kb2 Kd4 Qh3 Bf3 Ng2 Be2 Nd3 c1B+ Kc2+ Bb2 Nc1 Bd3+ Kd1 Bc3 Rf5 Bc4 Rfe5 Be2+
QrrbK3/nNNQ2q1/2p1nb2/P1R1Bbkq/2N3Pp/1BP5/r4R2/1Q5B w - - 0 1 legal: proof: g4 e5 d4 a5 dxe5 g5 b4 axb4 h3 f5 gxf5 g4 Qd4 g3 Qd5 Qh4 Qd1 Qg4 hxg4 Bh6 Qd4 Bg7 Qd1 Bf8 Kd2 Ke7 Kd3 h5 Ke4 b5 Kd5 g2 a4 d6 e4 h4 f4 b3 a5 b2 e6 Kf6 e5+ Kg7 e7 Kh6 e8N b4 e6 b3 e7 Ba6 Ke6 c6 Kf7 d5 f6 d4 f5+ Kh7 Ra2 d3 Nc3 b1Q Nd6 d2 e8B Kh6 Ncb5 b2 Nc7 Be7 Nb7 Bd3 Nf3 g1B Ne5 Qa1 Bg2 b1Q Nc4 Qb6 Bb2 Bd8 Qb1 d1R Be5 Na6 Rh2 Qb5 Bh1 Rf1 Rf2 Ne7 Ra3 Qc5 Rc3 Kg5 Bd7 Rc1 Be6 Nc8 Bed5 Rb8 Be6 Rh6 Ke8 Na7 f7 Rh8+ f8Q Rg8 f6 Bf5 f7 Qb2 Qa2 Ra1 Qb1 Ra2 Bed5 Qcb5 Be6 Nc5 Bed5 Rg6 Qg7 Ne6 f8Q Rc8 Qd7 Rg8 Rb3 Qd4 c3 Qbc5 Rb5 Bh2 Bd6 Qg7 Be5 Rh8 Bdf3 Bf4 Bd1 Be3 Bb3 Bd4 Bg3 Qd5 Rc5 B4f6 Bh2 Be4 Bg3 Qf5 Be5 Qfg6+ Qf7 Bf5 Qg8 Q6h7 Qd7 Qh5+ Qf7 Bde7+ Kd7 Ra8 Qb8 Rc8 Qe8 Re2 Qf7 Bd8 Ke8 Qhh7 Qd7 Ra2 Nbd6 Qhh6 Qb7 Rab8 Qa8 Qhh7 Nb7 Qh5+
N6Q/n3B2q/1p1P1qbK/2PnNRRp/Q4rr1/1R2QPq1/N2n1b2/5Bk1 w - - 0 1 illegal: No proof kernel
R1nN3N/2B1QB1p/b1RQp1P1/2Q4q/4Bb1N/6rP/1Pqn1K1r/2bk3r w - - 0 1 illegal: No possible last move, all moves rejected
K2q4/1b1rkN1p/Bp1r1nQ1/1N2PQ2/B4q2/1P2R2N/BrP2n1b/1Q3n1R w - - 0 1 illegal: manual, white bishop can't reach a2 after b2-b3, a3xBb2
2KN4/1q2r1pQ/Q1BrP3/bb2P1n1/P1qN1Q1B/1Rr2N1R/k4nBp/2q5 w - - 0 1 illegal: No proof kernel
1q6/4BP1k/K2R2pP/8/1b1nQ1N1/1rN2B1Q/1Q2pP1r/RnNbBqbn w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 c5 Kc4 a5 b4 e5 h4 g6 d4 Kg7 d6 g3 d5 a4 d7 a3 h5 e4 f6+ Kh7 b6 a2 Kb5 c4 d6 e3 h6 c3 b7 c2 f7 g2 Bd2 c1B Qh5 Ra6 Be2 Nc6 b8N Nf6 Bf3 Nd5 Be1 Ra4 Ne2 g1N Nbc3 Bb2 Nc1 Ne2 Qg4 Ng3 Qe4 e2 Rg1 Nh1 Rf1 Qc7 d8B Bf5 d7 Qa7 Be7 Nd4+ Kc4 Qc7+ Nc6 Qb8 d8Q Ra5 b5 Bd7 Nd1 Nc3 b6 Rh5 b7 Rh2 Ne5 Nb1 Qc8 Ba4 Nc3 Bd1 Ng4 Ba3 Qcf5 Bb4 Qh5 Bg7 Qh3 Be5 Rg1 Nf5 Kb5 Nd4+ Ka6 Rc8 Na4 Rc3 Rg3 Rb3 Nc3 Qd8 b8Q Qd6+ Qb6 Qb8 Qf6 Rg2 Nb5 Ne6 Bd2 Bb2 Nd3 Na3 Rb1 a1Q Qc3 Bc1 Qb2 Bc2 Bc3 Bf4 Rg1 Qa2 Ra1 Qb1 Bd2 Bc7 Nc3 Qf1 Nc1 Bd1 Be1 Bf4 Ra2 Nb1 Ra1 Rg1 Bg2 Bfd6 Rf3 Bh2 Rf5 Nd4 Bf3 Rg2 Rd5 Bg1 Rd6 Rh2
3br2Q/q1BkNpB1/1P1rrQ1p/4R2q/2n1q3/R5PN/b5QP/1N2K1Bn w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 d4 e3 g6 Bd3 Bg4 Bf5 d3 cxd3 Bh3 d4 Bg4 d5 Bh3 Be4 Bc8 Bf5 gxf5 d4 c5 b4 a5 e6 f4 d6 f3 d5 h6 e4 c4 d7+ Ke7 g3 c3 e5 c2 b6 a4 b5 a3 b7 a2 b6 Nc6 b8B Na5 Qd2 Bg7 Nh3 Bf6 Bc7 Qe8 d8N Nc4 Qg2 Bd7 Be3 c1Q+ Kf2 Qd1 Re1 Rc8 Kf1 Bg5 Bg1 Nf6 Kf2 Ba4 Kf1 Qc6 d6+ Ke8 e7 Kd7 Kf2 Qe4 Nc6 Bb3 Re2 Qdd5 Ke1 Rce8 Re3 Ng4 e6+ Kc8 Re2 Nf2 Re3 Rd8 e8Q Nh1 Qe7 Rhe8 Qf6 Qdf5 e7 f2+ Ke2 f1R d7+ Kb7 Be5 Rd1 Bc7 Rd6 Ke1 Re6 Be5 Qfg4 Re2 Qh5 Bb2 Ra8 d8B Kc8 Bc7 Ra5 Bc3 Rd5 B3e5 Rdd6 Bed4 Red8 e8Q Bh4 Qg8 Kd7 Ne7 Re8 Qgh8 Bg5 Qf5 Bh4 Bg7 Bf6 Nc6 Be7 Qf6 Bd8 Ne7 Qeh4 Re5 Qd4 Na3 Qdg4 Rb1 a1Q Rd1 Qa2 Rd3 Qe4+ Re3 Qa1+ Nb1 Qaa8 Qff1 Qa7 Qf6 Qh7 Rf3 Ba2 Ra3 Qe4+
1Q2NNQ1/1BR2prp/1nQN2r1/3Pkn1K/1bB1b2P/2bP3B/3q4/R3n2q w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 d5 c4 Na6 cxd5 Be6 b3 Nb8 Bb2 Bf5 Bd4 Bc8 fxe5 g6 Be3 g5 Bf4 gxf4 Kf2 Ke7 Kf3 a5 h4 c5 e4 c4 g4 a4 d3 c3 b4 c2 g5 c1N g6 a3 e6 Kf6 Kg4 a2 g7 f3 e5+ Kg6 b6 f2 b5 Ra5 b7 Be7 b6 Nc6 b8N Nb4 b7 Rb5 Nd2 Bf8 Nd7 Bc5 b8Q Qb6 e7 Qc7 e8B Nb3 e6 Nc2 e7 Ne1 Nc4 Nd4 Ne2 Bb4 Nc3 Qa5 Nd6 Nf5 Qc1 Rb6 Bh3 f1Q Nf8+ Kf6 Kh5 Ke5 Nce4 Rc6 Rh2 Qh1 Rc2 Ra6 Bc6 Nf6+ Kg5 Rb6 g8Q Nd7 e8B Ra6 Bb7 Nb6 Kh5 Be6 Qg1 Rg8 Nf6 Rg7 Bb5 Bd7 Bc4 Bc8 Rb1 a1B Nfe8 Bac3 Ra1 Qa2 Qh6 Bd7 Rcc1 Qd2 Rc2 Ne3 Qhg6 Bf5 Q1g4 Be4 Qgc8 N3g2 Qc6 Ne3 Qg5+ Nf5 Qgd8 Rg4 Qg5 Rg1 Qg8 Rg7 Qd7 Na4 Bb3 Rc6 Nb5+ Rd6 Ba2 Bd4 Rc7 Ra6 Bc4 Rag6 Nbd6 Bdc3 Qc6 Nb6
1N6/2QBpN1k/K2qr1r1/1P3PQ1/np4Nn/P2rqb2/Rb3B2/n1RRB3 w - - 0 1 illegal: No proof kernel
2k2NR1/1R2pr2/1P1BqN1r/Nb2rQnP/4p2P/b1n1K1B1/B1Q2b2/q4R2 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 Rh6 gxh5 Rh8 Ke2 Kd7 f4 g5 h4 a5 b4 c5 d4 c4 d6 a4 b6 g4 b5 g3 b7 c3 b6 g2 f5 c2 d5 a3 f6 a2 f7 Nf6 Bf4 c1Q Qc2 Bg7 Nd2 Ra5 Bg3 Qg8 f8N+ Kd8 Ke3 Na6 b8B Nc5 Ne2 g1R Nf4 Na4 Bc4 Ba6 Bc7+ Kc8 d7+ Kb7 d8Q Nh7 d6 Rf1 d7 Nc3 Bb3 Bb5 Nd5 Qe6 Nf6 Ng5 Bcd6 Rh6 Bc4 Rf4 Rf1 Qd1 Rc1 a1B Ba2 Bb2 Nb3 Ba3 Qe8 Rf5 d8R Rf2 Qf7 Rf4 Rd7+ Kc8 Rb1 Rf5 Rb2 Qa1 Rb7 Rf2 N6d7 Be5 Qf5 Rf4 Nf6 Rf2 Bh2 Bg3 Rbb1 Rf4 Rb2 Be1 Bg3 Bc4 Rb1 Re5 Na5 Bb5 Rd1 Rf2 Rd2 Rf4 Rg2 Rd5 Ne8 Qd7 Qh3 Rf7 Bge5 Nh7 Nf6 Qe6 Rg8 Ng5 Bg3 Re5 Qf5 Bf2+
1r2b3/Qn1PN3/5BN1/1kb1n1P1/2p1PR2/B2B1p1R/Q1Q1qN2/K2r1bqr w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 g4 a5 b4 c5 d4 f5 Kd2 h5 Kc3 c4 Kb2 h4 g6 f3 b6 a4 g5 f4 b7 h3 g7 h2 b5 f2 d6 Qe7 d5 Qe6 b6 Nh6 g8N Qf5 Nc3 Bg7 Qc2 Nf7 Bd3 f1B Nh3 Qg4 Nf2 Nc6 b8Q Bf8 b7 Nfd8 Ne7 Qe2 Ng6 Ne5 Qa7 a3+ Ka2 Rh6 b8Q+ Nb7 Qa6 Rh5 Qba7 Rb8 Rb1 Rh8 Ka1 a2 Ba3 Be7 Rb3 Rd8 Rg1 h1R Rg4 Ke8 Rh4 Bd7 Rh3 Ba4 Rb5 f3 d7+ Kf7 Rb6 Bc5 d6 Ke6 Rb5 Rg8 d8B Kd7 Qa5 Kc6 Bf6 Rgd8 Nd5 Rd7 Qad2 Rdd8 Ra5 Rd7 Ra6+ Kb5 Rc6 Rdd8 Rc8 Rd7 Rch8 Rdd8 R8h4 Rd7 Rf4 Rdd8 Kb2 Rd7 Nde7 Rdd8 Qb1 a1Q+ Kc1+ Bb3 Qa2 Qd4 Nd1 Qdf2 Bc2 Qg1 Kb2 Ba4 Nf2 Rd7 Qc1 Rdd8 Ka1 Rd7 Qa8 Kb6 Qd2 Bc6 Qa7+ Kb5 Qd3 Rdd8 Qc3 Be8 Bb1 Rdc8 d7 Rc6 Qc1 Rd6 Qd1 Rd2 Bd3 Nf7 Qc1 Ne5 Qcc2 Rd1+
Q3B3/3P2r1/2RKp1NB/p3Nkq1/2n2n1Q/1P1PR3/B1bb2qQ/R3qr1n w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Kf4 a5 g4 c5 b6 h5 g5+ Kf7 Ke5 h3 f4 h2 b7 c4 g6+ Kg7 f6+ Kh6 d6 h4 f5 Kg5 f7 c3 g7 h3 f6 c2 Nf3+ Kg4 Na3 Qe8 Qe1 Ra6 Nc4 Bf5 Nh4 Qc6 Ng6 Rh7 d7 Qf3 Bd3 Qg2 Rf1 h1N Rf3 h2 Re3 Rb6 Be2+ Kg5 Bh5 Be4 Qf2 Nc6+ Ke6 Rb5 b8Q Rf5 Nce5 Bd3 Qd8 Rf3 Kd5 Kf5 Qa8 Qg5 Qh4 Rf1 Qb8 Nf2 Kc5 h1Q Qa8 Qhg2 Qh2 Nh6 g8B Nhg4 Qd8 Bg7 f8R Nh3 Ba2 e6 f7 Nf4 b3 Bh6 Kd6 Nf2 Rg8 Nh1 f8Q+ Rf7 Qde7 Be4 Qa8 Rg7 Rc8 Bd3 Nf7 Ne5 Rc6 Qh4 Qed8 Qe1 Qdh4 Be4 Kc7 Nc4 Nfe5 Bf3 d3 Bd1 Nf8 Bg5 Be8 Bh6 Bd2 c1Q Nfg6 Bc2 Bb4 Nh5 Be7 Bf4 Bg5 Qcd2 Bh6 Qg5 Rf3 Qdg2 Rh3 Bd2 Re3 Na3 Kd6 Nf4 Ra6 Bb1 Rb6 Bc2 Rc6 Nc4+
rq4RR/n2p4/2PBr1q1/1N4R1/2KP2Qb/1NNQ1pPB/2r2b1n/Bn5k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 bxc5 exf4 a4 b4 Nf3 Ba6 Ng1 Bb5 axb5 Qf6 Rh3 Qe7 Rh1 Qd8 e4 Ke7 Ke2 Ke6 Kd3 Ke5 c4 h5 g3 a5 g6 f5 g7 b3 c6 f3 c7 f4 c8N h4 b6 a4 c5 f2 b7 h3 Na3 h2 Nb6 b2 Qb3 b1N Ra2 Rh6 Ne2 Nf6 g8R Nc6 Nd5 Be7 Nb5 a3 Ndc3 Na7 c6 Ng4 Ned4 Bh4 Kc4 Qb8 Bb2 Re6 Bh3 f1R Ba1 Rc1 Qd1 f3 Nb3 Rc2 d3 Kf6 e5+ Kf5 Rb2 a2 Qf1 Qe8 b8B Qg6 Bd6 Kg5 Rg1 h1Q d4 Nh2 Qd3 Qg2 Rc1 Qd2 Rh1 Qf4 Bf1 Kg4 Bg2 Rf6 e6 Qe5 e7 Re6 e8Q Qh8 Bf1 Qe5 Be2 Kh3 Qd8 Kg2 Qg5 Qf4 Qg4 Qf8 Rh8 Qb8 Rg8 Nf1 Rh3 Nh2 Bf1+ Kg1 Na5 Kh1 Nb3 Rf2 Re2 Rg2 Re5 Rc2 Bb2 a1B Rd5 Bg5 Rhh8 Bf6 Bh3 Bh4 Bba3 Bb2 Rg5 Bc1 Bb2 Be3 Ba1 Bf2
QR5N/nrkpPp2/b4R2/RPb2Bn1/5Pnq/1K4N1/NQ2BbB1/6qr w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 g4 Rh7 gxh5 Rh6 Be3 Rh8 Bd4 exd4 Kd2 g5 c4 a5 Kc2 d3+ Kb3 g4 h4 g3 f4 d2 e4 g2 b6 Ba6 h6 Qc7 e5 Kd8 c6 Bc5 h5 Bf2 e6 Qc8 b7 Bg3 c5 Be1 h7 Nh6 c7+ Ke7 c6 Kd6 e7 Ng4 h6 Bf2 Qe2 d1N Nc3 Rf8 h8N Qe8 c8B Bd4 c7 Bc5 h7 Rg8 Na2 Nc6 b8R Ra7 Bb7 Nc3 c8B Ne4 Rh6+ Kc7 Rf6 Ng5 Qc2 Qf8 Ne2 g1B Ng3 Qh6 Bd3 Qh4 Bf5 Bgf2 Ba8 Rg6 Bcb7 Rh6 Qe4 Bb5 Ba6 Rb7 Qb4 Bf1 Be2 Na7 Qb5 Rb6 Bg2 a4+ Kc3 a3 b4 Rb7 Kb3 Bb6 Qd5 Bbc5 Qd2 Rh5 Qb2 Rh6 Bef3 Ba6 b5 Qh1 Be2 Qg1 Rd1 Rh1 Rd4 Qh2 Ra4 Qh3 Ra5 Qh4 Ng6 Bce3 h8Q Bc5 Nb4 a2 Qg8 a1Q Na2 Bd6 Nh8 Qg1 Rf8 Bdc5 Ra8 Nc6 Qb8+ Kb6 Qa7+ Kc7 Rb8 Nge5 Qa8 Ng4 Bh7 Na7 Bhd3 Nh6 Bf5 Ng4
5qn1/1Rp3rk/1P2BQ1N/nB1QR2p/bB2nN2/1Q3qbR/PPr5/2b3K1 w - - 0 1 illegal: No proof kernel
1K1kb2q/R1p2P1B/PB2qRbr/NrP3R1/B7/n7/Q2pqQ2/1r2Nn1N w - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 f5 gxf5 axb4 h4 g4 Bd2 Bh6 Bc1 Bg5 hxg5 Ra5 Rh4 Ra7 Rh1 Ra8 Kd2 b5 Ke3 h5 Ke4 b3 Kd5 h4 e4 g3 c4 b2 a4 g2 f4 b4 a5 d6 g6 h3 g7 h2 f6 b3 e6 Qe7 f5 Rh4 f7+ Kd8 f8R+ Qe8 e7+ Kd7 f6 Qg6 e8N Ra7 e5 Qh5 Be3 Re4 Nd2 b1B Ngf3 g1R Qe1 b2 Qf2 Kd8 Ne1 Rb7 Nb3 Qe2 e6 Rh4 Bb6 Nc6 c5 Nh6 g8Q Bd7 Ng7+ Be8 Nf5 Ne5 Ng3 Nhg4 Ra2 Rh6 e7+ Kd7 Bg2 Bbg6 Be4 b1Q Ra1 Rf1 Rg1 Nc4 Nh1 Na3 Bc2 Qa2 Bd3 Ne5 Rg5 Nec4 Be4 Nd2 Bb1 Bh5 Bh7 Rg1 Qf7 Nf1 Qg8 Beg6 e8B+ Kd8 Kc6 d5 Qe6 d4 Qc4 d3 Qc2 Qb1 Qa2 d2 Rf7 Rb8 Rf8 Ra8 Kb7 Qf5 Ba4+ Be8 Rf7 Bg6 Rf8 Ra7+ Kb8 Qh3 a6 Qhe6 f7 Qd1 Na5 Qde2 Ng3 h1Q Rg8 Qhd5 Nh1 Qde5 Rb1 Qg7 Rb3 Qa1 Rf3 Qh8 Rf6 Rb7+ Ka8 Ne3 Ba7 Ke7 Nd3 Rgb1 Ne1 R7b5 Bb6 Bd7 Rb8 Be8 Rb7 Kd7 Kb8 Kd8 Ra7 Nf1
1Q1B3N/1P1bq1n1/K4n2/qN1R1Pp1/4NBP1/pr3b2/b1r4Q/k2qQB1R w - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Bg7 h6 Ng8 hxg7 Qb6 Bg5 Qc7 Bc1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 b4 a5 g4 h5 b6 d5+ Kb5 g5 c4 d3 f4+ Kd4 c5 e5 c6 e4 c7 a4 b7 a3 f6 d2 f7 h4 f8B h3 f5 h2 Be2 e3 Bd6 Qe7 Kb6 Nc6 b8Q Nf6 g8N Nd8 b5 Ne6 Nh3 Bd7 c8Q Ng7 Qe1 d1Q Nf4 Rh3 Bf1 e2 Bc7 Rb3 Nc3 Kc4 Qa6 d4 Bd8 d3 Ng6 d2 Nh8 Ra7 Ka5 Rc7 b6+ Kd4 b7 Rc4 Rg1 h1B Qad6+ Bd5 Nb5+ Kd3 Rb1 Kc2 Ka6 Rc7 Qh2 Bc4 Qef2 e1Q Rh1 Bd5 Ra1 Bf3 Ra2+ Kb1 Qfh4 Q1e5 Qe1 Rc4 Rc2 Ka1 Rc3 Bd5 Rd3 Rc2 Rd4 Bc4 Rd5 Qc3 Nh6 Qce5 N6f7 Qc3 Nd6 Qb4 Kb6 Qa5+ Kc5 Rbb2 Bh3 Qf3 Bf1 d1B Bf4 Ba2+ Bc4 Qa4 Kb6 Rb3 Bf1 Qb4 Ka6 Qd3 Bc1 Bf3 Ne4 Qd1 Bf4 Qa5+
5nNQ/1PKpPk1p/1b6/rB3B1n/1r2N1qq/1RQR1b1b/3nP3/3QN1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 Kd3 f5 Kc4 a4 Kd5 a3 c4 f4 g4 d3 b4 d2 b6 a2 b5 f3 g6 f2 e6 Nc6 e7 Nd4 Kd6 Ba6 c5 Rb8 c6 Bh6 g5 Nf6 b7 Nd5 g7 Nc3 g8B Qc8 b6 Bc4 c7 Qd8 c8Q Nd5 g6 Ne6 g7 Nf6 Rh3 Bd5 Nc3 Be3 Nf3 Nh5 Rb1 a1N Ne4 Nf8 Ne1 Nb3 Qc3 Bc6 Bg2 f1B Bc4 Rg8 Ba6 Kf7 Bb5 Ra8 b8Q Ra5 b7 Bb6 Bh1 Qc8 Rg3 Bh3 Rd3 Bd5 Ba3 Qc4 Bc5 Qd4 Qc8 Qf2 Bf3 Qh4 Bg4 Bc6 Bf5 Bd5 Qdc1 d1Q Bg1 Nd2 Rb3 Qc2 Qd1 Qc1 Ng3 Bf3 Ne4 Qa1 Qd8 Qa4 Qdc8 Rh8 g8N Qc4 Ngf6 Rg8 Qa8 Rg4 Ng8 Qa4 Qac8 Qa1 Qh8 Qg7 Qc3 Qgg5 Nf2 Rb4 Ne4 Bf2 Kc7 Qgg4 Qca1 Ba7 Qac3 Bb6+
q4qbq/Kp2N3/2rPr2N/R4R2/4R3/1Qnr3Q/1bPknBpP/2NB1Q2 w - - 0 1 illegal: No proof kernel
5rkB/1p1N1q2/1bp1BPr1/K5q1/3b1bn1/BPN2Q1P/RQ5R/1nr2NR1 w - - 0 1 illegal: No proof kernel
N2r1k1K/P2PqNb1/1q1N2bR/P2p2n1/1r3q2/1n1R2R1/5p2/QBQb1QB1 w - - 0 1 illegal: No possible last move, all moves rejected
rN5r/p1p1PB2/1QBn4/4Rb1B/QKP2R1n/4RN1P/4Qb2/qkn1q1r1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Nc6 g5 Nb8 g6 Qf6 Be3 Qd8 Bg5 hxg5 Kd2 Ke7 Kc3 Ke6 e4 f5 b4 d5 h3 g4 b6 g3 b5 f4 b7 f3 b6 f2 Nd2 g2 Bb5 f1R Ne2 g1Q Ra5 Re1 Nd4+ Ke7 e6 Kd6 e7 Kc5 e8B Qh2 e5 Rg1 e6 Qh4 Qe2 Nh6 g8R Nf7 g7 Qe1 Nc6 Na6 b8Q Nb4 b7 Nd6 Bh5 d4+ Kb3 d3 c4 Qhf2 Nf3 d2 e7 d1N Rh2 Bf5 Qe8 Ne3 b8Q Qff1 Rf2 Ng2 Qb7 Na2 Nb8 Nh4 Bc6+ Nb5 Ra3 Nc1+ Ka4 Nd6 Re3 Qc3 Qb3 Qfe1 Qg6 Qa1+ Qba2 Rh6 Rh8 Rh7 g8B Bg7 Bf7 Bd4 Rg8 Rh8 Qh6 Be5 Rg5 Bg3 Rf1 Qd1+ Ka5 Bf2 Qa4 Qe1+ Nd2 Kd4 Kb4 Bh7 Rge5 Bd3 Ka5 Kc3 Nf3 Ne4 Kb5 Nd6+ Kc5 Qd2 Qg6 Kb2 Qh6 Kb1 Qe6 Qd1 Kb4 Ne8 Qd6 Bf5 Qd4 Nd6 Qb6 Qd5 Rd1 Qe6 Rd4 Qd5 Rde4 Qd1 Rf4 Qe1+
8/1RN1bB2/2B1R1bk/1pR1nP1p/4rPn1/1n1nN1B1/1N2qP1Q/Knr4Q w - - 0 1 illegal: No proof kernel
4RbNr/b5QN/1kr2p2/3KB1NQ/2P1q2P/3bbnpb/1B1R1PB1/4R1n1 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 Kd2 d5 Ke3 Kd7 Kd4 Kc7 c4 a5 h4 g5 e4 g3 e6 g4 c6 f6 e7 a4 e8R a3 e5 a2 e6 g2 e7 Nh6 Rh3 Nf7 Ra3 Ra6 Ra5 Nd7 Nf3 g1B Nbd2 Ng5 Bg2 Bh2 Qg1 Ne5 Bb2 Bf4 Ne4 Kb6 c7 Nh3 Re1 a1B Neg5 Bc1 Ra2 Be3+ Kc3 Bf5 Nh7 Qa8 Nfg5 d4+ Kb4 d3 c8N+ Kc7 Kc3 Rc6 b6+ Kb7 Kb4 d2 Kc3 d1B Kb4 Kb8 b7 Kc7 b8B+ Kb7 Kc3 Nf3 Be5 Bdc2 Kb4 Ba7 Kc3 Bcd3 Kb4 Rb6+ Kc5 Rc6+ Kd5 Be3 Bbd4 Bc3 Rd2 Bb4 Bb2 Bbc5 Rd8 Bcd4 e8Q Ba7 Ne7 Kb6 Ng8 Bd7 Qf7 g3 Re8 Bc8 Qg7 Qb7 Qf1 Nhg1 Qe2 Bh3 Qd1 Nd4 Qg4 Ndf3 Qh5 Qe7 Rd8 Qe8 Ra8 Qg6 Re8 Qe4+
B4nnb/1Q1n4/1QBprqQ1/1K2R2R/4rnp1/1b1P1k2/N1Pn2NP/6BR w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 f5 exf5 Nf6 axb5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 f6 a5 f7 e5 b6 g5 f5 g3 c6 g4 b7 d6 f6 a4 c7 g2 Nf3 g1N Nh4 a3 Ng2 a2 Kb5 Nd7 b8Q Bg7 f8R Ne2 f7 Rh6 d3+ Kf3 Qb7+ e4 Nc3 Qf6 Be3 Ra4 Re8 Nf8 Re5 Be6 c8B Bb3 Bg1 Bh8 Qb1 Nf4 Bd7 Rd4 Qb6 e3 Bc6+ Re4 Qb2 e2 Re1 a1N Na2 Qh4 Rh5 Re6 Qg7 Qf6 Qg6 Bd5 Ba8 Nb3 Qb7 Nd2 Qb6 Nd7 f8Q Bb3 Qfg7 Nf8 Qgc7 Nc4 Bc6 Ne5 Qcb7 Ned7 Rd1 e1N Rd2 Nd5 Re2 Rc4 Ree5 Re4 Ne3 Nf4 Bg2+ Ke2 Nf5 Nf3 Nh4 Nd2 Bf3+ Kf1 Ng2 Re1 Bfd5 Re4 Q7a6 Ke2 Ba8 Qd8 Bdc6 Qf6 Qab7 Kf3
k1rN2b1/5p2/brq3n1/2BN2nn/2BQ1p2/2QPnRR1/3n1PNP/BK2R3 w - - 0 1 illegal: No proof kernel
q2k3n/B2P2b1/Nb1Q1b1K/3b2N1/Q1r4n/3Bp2p/RRrBP1P1/5RQb w - - 0 1 illegal: No possible last move, all moves rejected
1k1rB1Rb/pPp3Qq/1Bb2bbQ/1R6/N1R3n1/b2Q1N2/5PP1/r2Kn1B1 w - - 0 1 illegal: No proof kernel
2n1n2Q/2r5/r1B1R1QB/2bK1r1p/N1pQP3/2RP1Pb1/R5bq/Bk2bN2 w - - 0 1 illegal: No proof kernel
3b3n/2q2k2/1Q1BNr2/1n1P4/KnNpBN1P/3R1Rrn/1bpP4/QR3B1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 a4 d4 axb5 Qd5 cxd5 exf4 b4 f5 e4 a5 h4 g5 h6 c5 b6 g4 b7 a4 e5 a3 h7 c4 b5 g3 b6 c3 e6 c2 e7 a2 Be2 f3 Ba6 f4 Ba3 g2 Qe2 Bh3 Qf1 f2+ Ke2 f3+ Kd3 Nh6 Kc4 Kf7 Kb3 Rg8 h8R Nc6 b8N Nb4 b7 Rg3 Ne2 g1N Ka4 Bg2 Nc6 Nh3 b8Q Bg7 Rc8 Bf6 Qb6 Rb8 Rg1 Bh1 Nf4 Bg5 Qc1 f1Q Rg2 Rb7 Rf2 Qc4 Qd1 Qc5 Bf1 Qd6 Ra8 Qc7 Ra5 Ra7 Qe1 Ra6 e8B+ Kf6 Bd7 Nf7 Bf5 Nh8 Be4 Kf7 Qc1 Bd8 Qb2 Nd3 Bd6 Nb4 Qc3 Rg4 Na3 Rg3 Rc1 a1B Rb1 Bb2 Nc4 Ng5 Re2 f2 Re3 Nh3 Qa3 Bf6 Rf3 Bd8 Bfd3 f1N Qa1 Ne3 Bf1 Nf5 Rd3 Ne7 Rf3 Nc8 Rd3 Bf6 Rf3 Na7 Nd8+ Kg8 Nde6 Bd8 Qc5 Rc6 Qb6 Kf7 Rb5 Nd3 Rb4 Nb5 Rb3 Nb4 Ne3 Rc3 Nc4 Re3 Rd3 Rg6 Rf2 Reg3 Rff3 Rf6
1n2R3/3R1bn1/1R1P4/2pk1K2/PQrN1npB/1B3qN1/1nP2brQ/1b2N2Q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 axb4 e4 Nc6 exd5 Nb8 Kf2 Ke7 Ke3 c5 Kf4 b5 d4 f5 a4 b3 h4 b4 h6 b2 e6 Kd6 e7 b3 e8R g6 h5 Bb7 h7 Bg7 h6 Nf6 Nc3 b1B Bc4 b2 Qg4 Qa5 Bb3 Nh5+ Kg5 f4 Nce2 f3 Ng3 f2 Nf3 f1N Ne1 Ne3 Rh3 Rf8 h8Q Ng2 h7 Ngf4 Rh2 Qb4 Rd2 Qc3 Ra2 Qf3 Ra1 Kc7 d6+ Kc6 d7 Ba6 Rd3 Bc4 d8N+ Kd5 Ne6 Be5 Be3 Ng7 Bf2 Rg8 Rd2 Ra7 Ra2 Rb7 Qh4 Rb4 Qh1 Kd6 d5 Bd4 Qh2 Be3 Kf6 g5 Nd4 g4 Kg5 Rf8 Qg8 Rf6 h8Q Rh6 Qh1 Rh2 Kf6 Rg2 Q8h2 Bd3 Qf7 Rc4 Qb7 Bg6 Qb4 Bf7 Ra3 Ba2 Kg5 b1N Rd1 Nc3 Rd2 Ngh5 Kf5 Bb1 Ra2 Nd1 Rb2 Nd7 Nge2 Nb8 Bh4 Nf2 Ng3 N2d3 Re2 Bf2 R2e7 Bg8 Rg7 Bf7 Rh7 Kc7 d6+ Kd7 Ne6 Kc6 Nd4+ Kd5 Rg7 Bg8 Rb7 Bf7 Rd7 Ng7+ Kf6 Ba2 Qa5 Ngh5+ Kf5 Bb1 Ba2 Bg1 Rb6 Nb2 Bb3 Bf2 Qb4 Ng7+
1q1B1n2/R1rN2QQ/BN1pK1b1/2br2PQ/pnb2rPR/B3P3/4k3/4b2R w - - 0 1 illegal: No possible last move
1B1Q1b2/bB2r3/1Rpr1P1K/3Nn3/1qPP1RQp/k5rR/2b3N1/1n2BQ1r w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 f5 gxf5 Ba6 hxg5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 c4 Kb4 f6 h5 f3 a5 b6 h4 b7 e3 g6 e5+ Kg5 a4 f4 e4 g7 e2 f5 e1B Rh3 a3 Bg2 a2 Qg4 e3 Nf3 e2 Nc3 Nc6 b8B Qd6 f7 Nf6 g8Q Bf2 Ne1 Ba7 d4 Rh7 Bd2 Rg7+ Kh6 Ne5 Bb7 c6 Ng2 e1R Nd5+ Ka4 b4 Ne4+ f6 Rg1 b5 Bf5 b6 Qb4 Rf1 a1R Be1 Nc3 Rf4 Nb1 Qf3 Bc2 Qf1 Bc5 Qc8 Bf8 Qg4 Rh1 Qd1 Ra3 Qg4 Be7 f8Q Rg3 Qd8 Ka3 Bc8 Bf8 b7 Qb5 Bc7 Qa5 b8R Qb4 Rb6 Rb8 Bd6 Rbb7 Bb8 Rbd7 Ba6 Rd6 Bb7 Re7+
2nr1RN1/1N1bBR2/1p1PP1r1/2P2Q1B/p2b2b1/KQ2qn2/N3rB2/1Q2bk2 w - - 0 1 illegal: No proof kernel
1BnR1NK1/1r6/P7/pQ1Prn1b/N2r2pk/NRQb1Q1P/3b1q2/2R2B1b w - - 0 1 illegal: No proof kernel
k3r2B/4PP1R/3bQ3/Pp2K1nR/4RQ1n/3Npbr1/1N1r4/nrQ1B1qB w - - 0 1 illegal: No proof kernel
K2n2nn/r3p2B/1Pk3rQ/1R3Bbq/1R1Q3N/4Pp2/2b1NPQB/Nr5n w - - 0 1 legal: proof: c4 a5 h4 d5 cxd5 g5 hxg5 Nc6 b4 Nb8 a4 b5 axb5 axb4 g4 Kd7 d4 f5 Kd2 h5 Ke3 c5 g6 h4 b6 c4 g5 f4+ Ke4 c3 g7 b3 d6 h3 Kd5 f3 g6 b2 Ra5 c2 Bf4 c1N e3 h2 Bd3 Nb3 Bf5+ Ke8 Na3 b1N Nc2 Nc1 Na1 Ne2 Qf1 Rh5 Rb5 Nd2 Qg2 Nc1 Ne2 Nd3 Rhb1 h1R Bh2 Rh7 R1b4 Ne5 Kc5 Nf7 d5 Ngh6 g8B Nh8 g7 Nf1 Nc3 Ng3 Ne2 Na6+ Kc6 Rb1 Nc3 Nc7 Ne2 Be6 Kb7 Kd7 Nc1 N6f7 Ne2 Rh6 Bgh7 Nh1 g8N Rg6 Nh6 Ra3 Bd3 Bh3 Nf5 Ne8 Nh4 Nf6 Bc2 Qe8 Bf5+ Kd8 Kb8 Bh6 Kb7 Bg5 Kb8 Qf8 Kb7 Ke8 Kb8 Nd8 d7+ Kf7 d6 Qe8 Rf4 Ng8 Rfb4 Ne6+ d8Q Ra7 Qc8 Nd8 d7 Kf8 Qc6 Qf7 Be6 Bf5 Qd6 Bc2 Bf5 Re6 Qf4 Qh5 Qd4 Rg6 Qf4 Ne6 d8Q+ Kf7 Qdd4 Ke8 Qf6 Kd7 Q4d4+ Kc6 Qg7 Rc7 Qh6 Nd8 Ka8 Ra7+
2n1rBkq/3Pn3/QrB3N1/2Pp2rn/R4br1/5Qpb/2P2N2/N1QB2RK w - - 0 1 illegal: No proof kernel
1b2b2n/K1Qp2n1/4NB1R/B2B1n2/1P1rRQ1P/pR3P2/2N2r2/2rk1rqQ w - - 0 1 illegal: No possible last move
2qB1kr1/2p1b1r1/Rb1P2P1/2N4K/pQ1NR3/Q2b4/R2rnPBr/3nB1N1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 Kf3 h5 b4 e5 g4 a4 d4 h3 b6 h4 b5 h2 d6 h3 d7+ Ke7 d5 Bg7 f6+ Kf8 d6 Rh6 b7 Rh7 b6 Nh6 f7 Nf5 g5 e4+ Kg4 e3 g6 e2 Bg2 e1B Qf3 Nc6 b8R Ba6 b7 Bf6 Na3 Bh4 Nb5 Rg7 Nd4 Bd3 Bd2 Ne3+ Kh5 Nd1 Ra2 Qc8 Bc3 Bd2 d8B Bdg5 Be1 Be3 Nde2 Bb6 Nd4 Bf1 Qa3 Bd3 Nb3 Nd4 Nc5 Ra7 Ra8 Ne2 b8N Rb7 Nc6 Rb8 Ra6 Ra8 Nf3 Rb8 Rf1 h1R Ng1 h2 Nd4 Ra8 Bc3 Rb8 Re1 Ra8 Nh3 Rf1 Ng1 h1R Ba5 Rh2 Qb4 Nc1 Re4 Re1 Qa3 Re2 Be1 Rd2 Bf6 Qh3 Bg5 Re8 Bd8 Qc8 Qb4 Ne2 Qa3 Rg8 Qb4 Re7 Qa3 Kg7 f8Q+ Kh8 Qe8 Kg7 Qb5 Kf8 Qbb3 Reg7 Qbb4 Be7+
5r1B/bP2r1Qq/2P2RBN/2Rn2B1/2pbN1bn/k1b3KN/2pP4/1R2Q2r w - - 0 1 illegal: No proof kernel
1N4b1/rpQBrRbR/2br1nN1/4Q2P/k1B4P/B2b1q2/P3p2K/N2n2Q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 d5 Kf2 Kd7 Kg2 Kc6 h4 e5 c4 g5 f6 g4 f5 e4 f7 b3 f6 d4 Ba3 e3 Nf3 d3 Kh2 b2 Nbd2 b1B Rg1 Qd5 Nb3 Bg7 f8N d2 f7 Nd7 Ng6 Nb6 f8Q Bd3 Qe7 Rh7 Qe5 Ra7 Qb1 d1B Nfd4+ Kd7 Be2 Qf3 Nc6 Nf6 Rg2 B1c2 Qg1 Nbd5 Rf1 Nc3 Na1 Ba4 Rg3 Nd1 Nb8+ Kd8 c6 Be6 c5 Bg8 c7+ Kc8 Na6 Kd7 c8B+ Kc6 Nb8+ Kb5 Bd7+ Ka5 Rg2 Bc6 Rff2 Ka4 Rf1 Be4 Bc4 Bd3 Rd2 e2 Rf2 Bb5 c6 Rh6 c7 Bc6 c8Q g3+ Kh3 g2+ Kh2 Rh7 Qcc7 Rh6 Qh1 g1R Rc2 Rg4 Qg1 Re4 Rd2 Bc2 Rd6 Bb1 Re6 Bd3 Re7 Bf8 Rh7 Bg7 Qeg3 Re7 Qge5 Ne8 Nf4 Rd6 Ng6 Nf6 Rf1 Qg4 Rf5 Qf3 Rf4 Nd5 Rf7 Nf6
K3Q2Q/pN1B2n1/1r1P2b1/5p2/Pk2bRrR/5Q2/PBnRNq2/2rrb1B1 w - - 0 1 legal: proof: g4 d5 f4 h5 gxh5 e5 c4 exf4 cxd5 Qd7 b3 Qa4 bxa4 Rh7 Qc2 Rh6 Qd1 Rh8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 h4 b5 d4+ Kc4 d6 c5 h6 g5 d7 f3 d8R g4 d5 f2 h5 b4 h7 b3 h6 g3 Be3 g2 Na3+ Kb4 Rh4 c4 Nb5 b2 Nd6 c3 Nb7 c2 d6 Be7 Rf8 Nc6 Kd5+ Nd4 Qd3 f6 Rd1 c1R Rd2 b1B Qf5 Rb8 Qf3 Bg4 Rf7 Nc2 Kc6 Bd8 Bd4 Be7 e4 Bf5 e5 Bg6 Ne2 g1Q Bh3 f1R Bd7 Rfd1 e6 Qf2 Rf8 Bd8 e7 Bb6 e8Q Ba5 Bb6+ Be4+ Kc7 Ne7 Rf7 Rf8 h8B Rg8 h7 Rg4 Bg7 Bg6 h8Q Nf5 Kc6 Qg2 Bg1 Qf2 Nc5 Rb5 Nb7 Rb6+ Kc7 Qg2 Kb8 Qf2 Bh6 Ng7 Ka8 Be4 Bf4 Bg6 Be5 Be4 Bb2 Bg6 Re7 f5 Re4+ Nd4 Rf4 Be4 Rd3 Nc2 Rd5 Kc4 Rd3 Be1 Rd2 Kb4
3B1R1b/pp2Q1N1/r1P2rP1/1R5B/1b1k2N1/1Pq1bQn1/1r3n2/KbBN2Q1 w - - 0 1 illegal: No proof kernel
2Qr3R/kb1nR2q/1N2q3/B3n3/1b1BpQ2/b4P1Q/rP1PbpK1/1BR3N1 w - - 0 1 illegal: No proof kernel forced: bxDB
R1nRq1b1/2b5/3b2B1/QK3P2/1p1p1PBn/NNk2qB1/rrP4Q/2Q3bN w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 a4 d5+ Kb5 g5 a5 g4 c6 e6 c7 g3 h6 d4 a6 g2 a7 b3 h7 b2 Ne2 g1B Na3 Bd6 Ng3 Nh6 Bd3 Kd5 Bf4 e5 Qc1 Be6 c8B e4 f3 Re8 h8N e3 Nf7 e2 Ng5 e1B N5e4 Nd7 Nd2 b1Q+ Nb3 Nb6 h3 Rb8 a8Q Bg8 Qa5 Qe7 Bd7 Nc8 Rh2 b6 Nh1 Bg3 Rf2 B3h2 Bg3 Qb2 Ra2 Qc3 Re2 Qf7 Re4 Rf8 Re8 Ra8 Rd8 Qe8 Be1 Bhe5 Bg3 Bc7 Ra1 Bed6 h4 Rf7 Qa6 Ne7 Ka4 Qf8 Nc4 Nc8 f4 Ng4 h5 Rh7 h6 Nh2 Be8 Bb8 Bg6 Rb7 h7 Nf3 h8Q Bc7 Qh2 Nh4 Nbd2 Qe7 Be2 Qe8+ Rd7 Kc5 Bg4 Qf3 Ra3 Bb8 Ra2 b5+ Ka5 Rb6 Rd8 Bbc7 Qa7 b4 Nb3+ Kd5 Rd7 Ra6+ Kb5 Ra4 Rb2 Ra1 Ra2 Rb1 Ra3 Rb2 Qb6 Rb8 Ra6 Rb7 Ra8 Ra7 Qa6 Qe6 Qb6 Raa2 Qa5 Qe5 Na3 Qe8 Nb1 Qe6 Rd8 Qe8+ Ka6+ Kc4 Na3+ Kc3 Qf2 Qe1 Qh2 Qee4 Kb5 Qe8+
1k2N1q1/1r1bNn1n/2nKQ3/N1BBPP1R/2B1rR2/4P1qp/1pQbn1Q1/8 w - - 0 1 illegal: No proof kernel
qB2N1q1/NB2Kq2/2bn1Q2/1rP2R2/2q2Q1R/rB3pP1/p5PN/1Rn1b1k1 w - - 0 1 legal: proof: f4 b5 d4 c5 a4 cxd4 axb5 e5 fxe5 g5 Nc3 g4 Nb1 g3 hxg3 Qa5+ Bd2 Qb6 Bc1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 a5 b4 h5 e6 d3 e4+ Kd4 c4 d5 e5 a4 b6 d2 b7 Ke3 b5 Kf2 b6 d4 Rh2 d3 Ne2 a3 Qc2 d1Q Qb2 d2 Qb3 a2 Ng1 h4 Qc3 h3 Na3 Qa4 Nf3 d1Q Bf4 Q1d4 Rb1 Bd7 Nb5 Na6 b8R Nb4 b7 Ne7+ Kf6 Nc8+ e7 Nd3 c5 Nc1 Qa1 Bh6 Bc4 Qaa5 Bb3 Qc4 Rh1 h2 e6 Qf8 Be5 Bd2 e8B Be1 e7 Qc7 Bd6 Ra3 Na7 Qd8 Bc7 Nd6 Qc3 Bb5 Bc6 Rh7 Be4 Qg8 Bd5 Qde8 Rc8 Qc6 Rf8 Ba4 e8N Q6a6 Nc6 Qa8 Na7 Bd7 Ke7 f5+ Kf6 f4 b8Q Nf5 Be4 Bb5 Bd6 Rb7 Bd5 Rb6 Bb7 Bc6 Qc7 Rb5 Be5 Nh6 Ke7 Nf7 Qd6 Rba5 Qh6 Rb5 Bb8 Nd6 Rf5 Qcf7+ Kd8 Qc4 Qcf6 Qcf7 Nd2 f3 Nf1 Qc4 Qhg5 Qgf7 Qf4 Qg8 Rg1 h1Q Ke7 Qh2 Rh1 Qh5 Rh4 Kg1 Nh2 Qhf7+
2k4B/1bn1rBR1/r3b1Pb/NNKp1NQ1/P1b1P3/q3p1n1/q1R2QB1/4R3 w - - 0 1 illegal: No proof kernel
1n1kbn1R/1q1n3r/3qp1N1/4P1rN/B3B1nK/2Q1b1Q1/B2pP1PQ/R2R4 w - - 0 1 illegal: Other
N1qb1bKb/4k3/4p3/4P1rn/1NQqnB2/1R2NQpQ/1Pbr1P2/2B3BR w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 Na6 gxf5 Nb8 Bh3 Nh6 Bg4 hxg4 Qa4 Ng8 Qb3 Nd7 Qd1 Nb8 d4 g5 Kd2 c5 Kc3 a5 Kc4 a4 e4 a3 h4 g3 h5 a2 d6 g2 Kd5 c4 h6 g4 f6 c3 f7+ Kd7 h7 c2 b6 Nh6 b7 Nf5 Qd3 Ra3 Ne2 g1B Nec3 Nh4 Na4 Bh6 f8Q Qc7 Nbc3 Nf3 Nd1 Nh4 Qc4 Nf3 Ne3 Nd2 Qf3 Rg8 h8Q Bf8 Qhh3 Rd3 Nb6+ Kd8 d7 Rg5+ Ke6 Bh2 Kf7 Be5 d5 Bh8 Na8 e6 Rb1 a1Q Rg1 Qc5 Rg3 Qa6 Ra1 Qd4 Rb1 Bhg7 Kg8 Ke7 d8N Nd7 b8B Bb7 Bf4 Qc6 e5 Qc8 Ra1 Ne4 d6+ Ke8 Nc6 Rd2 Nb4 Bh8+ Kh7 Bc6 Rb1 Ba4 Ra1 Nb6 d7+ Ke7 Rb1 Nd5 d8B+ Kf7 Bf6 Ke8 Bg7 Ke7 Kg8 Bb3 Rg2 Ba4 Bh2 Nf4 Bg1 Nh5 Rh2 Bb3 Rh1 g3 Ra1 Ba4 Ra3 Rd3 Bd2 c1B Rc3 Bc2 Rb3 Qa7 Nd1 Qb6 Bf4 Qd4 Ne3 Bd2 Na2 Ba5 Nb4 Rf5 Bgh6 Bd8 Nf1 Rd1 Bc1 Rd3 Ne3 Rd2 Bf4 Rg5+
N2QK3/n2Rnb1B/nPpb1k2/q4n2/1r2Rp2/Pq2BRP1/r7/2BN1Q1Q w - - 0 1 illegal: No proof kernel
b2N1n2/1Q3Pr1/1bB3Bk/4R2N/1bR2bn1/2PqqrpQ/2Q1pBP1/6NK w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 dxc5 g4 Ra6 Qc7 Ra5 Qf4 Ra1 Qg5 hxg5 Bb7 Be3 Ba6 Bc1 Bc8 b4 Kf7 f4 Kg6 Kf2 d5 c6 e5 b6 a5 b5 h5 c7 h4 b7 a4 b6 e3+ Ke1 d4 Bc4 e2 Kf2 a3 Nd2 d3 Bb5 e4 Bc6 a2 Nf1 h3 Ng3 h2 Be3 d2 Nh5 Nf6 Rc1 Nbd7 b8Q a1B b7 Ra7 f5+ Kh7 Kg3 e1B+ Bf2 e3 g6+ Kh6 g7 e2 g8B Bb4 Bf7 Nf8 Bg6 Bd4 Qa8 Be6 c8Q Bd5 b8N Bb6 Qab7 Rg8 Qe6 Rg7 Qed7 Be4 Qd3 Ra3 Qb3 Nd5 f6 Ne3 f7 Bf3 Be8 Be4 Nc6 Bf3 Nd8 Be4 Qd7 Ba8 Qbe6 Rd3 Qb7 Rb3 Bc6 Rd3 Nf3 Rc3 Rf1 h1Q Ng1 Ra3 Ra1 Rb3 Ra5 Rd3 Qb1 d1Q c3 Bd2 Qc2 Qb1 Re5 Qh4+ Kf4 Qe7 Kg3 Qd1 Kh2 g3+ Kh1 Ng4 Qed7 Bf4 Qf5 Qb1 Rd1 Re3 Rd4 Rf3 Rc4 Qd1 Qfc8 Qd3 Qf5 Qc5 Qe6 Qce3 Qf5 Nh2 Qh3 Ng4
1q2Rn2/1B1r1Pn1/1b2p1bP/3N4/1B1kqPRr/3rN2r/3Q2Qp/R2B1N1K w - - 0 1 illegal: No proof kernel
B3RRK1/3q1prn/1r2B3/Q1pq4/1BbQP3/PN1P1N1n/Qbb5/b3Nk2 w - - 0 1 illegal: No possible last move, all moves rejected
4bBk1/1P1nnqrp/NK2pQ1R/rQB2q2/2P2PB1/1Q1q1R2/8/2bN1qN1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Kc4 d5+ Kc5 d3 c4 d4 g4 d2 f4 d3 b4 a4 f6 a3 b6 a2 b7 Bg7 b5 e6 b6 Ra7 g6+ Kf8 f7 Ra4 g5 Bd7 Be2 Bb5 Rh6 Ra7 Bg4 Ra4 Nc3 Qe8 Ba3 Ra6 Qb3 Ra7 Rf1 a1Q Nd1 Qb1 Rf3 Bb2 Bb4 Bc1 g7+ Ke7 f8B+ Kf7 Ba3 Ne7 Bb4 Ra5 g6+ Kf6 g8Q Qf7 Ba3 Be8+ Qb5 Ra8 Qb3 Nd7+ Kb5 Qc2 b8N Ra6 Bc5 Ra5+ Kb4 Qb1 b7 Qc2 Na6 Qb1 Nb2 d1Q g7+ Qg6 Qc2 d2 Qb3 Qf1 Nd1 Qf5 Rh5 Ra3 Kb5 Qf7 Rhh3 Ne5+ Kb6 Ra5 Nf2 d1Q Rh6+ N7g6 Qb5 Qdd3 Nd1 Qg2 Bfd6 Qgf1 Qf8 Rg8 Rh5 Rh8 g8Q Ne7 Rh2 Bd7 Qd8 Be8 Qf8 Rg8 Rh6+ Qg6 Qb3 Rg7 Qd7 Qf5 Qdb5 Q5d3 Rh4 Qgf5 Qh8 Q7g6 Rh1 Kf7 Rh6 Nd7+ Kc7 Ng8 Bf8 Qgh5 Kc6 Ne7+ Kc7 Rg6 Qhc3 Rg7 Qd4 Kg8 Qf6 Nb8 Kb6 Qhg6 Nb4 Qf7 Na6 Nd7+
6R1/1pN1q2K/3Q1b2/1RR1N3/rb1Bp2P/NnP1PBQ1/1q2nQ2/1r1k1bb1 w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 h5 dxc5 f5 g4 hxg4 Qd3 Qc7 Qxf5 Qb6 Qh7 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 f4 e5 a4 g3 h4 g2 c6 g4 a6 g3 a7 d6 e3 Ne7 c7 Rg8 f5 Nbc6 a5 Nd4 a6 Ne2 Ra5 Nc6 Qd7 Ncd4 Rb5 Qe7 Na3 Nb3 Nf3 g1B Bg2 Bh2 Rg1 Rg5 Bh1 g2 Bb2 Bf4 Rc1 g1B Bd4 Rg3 c3 Bg5 Rc5 Rg2 Rb1 Rh2 Bg2 Rh1 Qc6 Bd7 c8Q Be6 Q6c7 Bc4 Q8d8 Bb5 Nd2 Bc4 Bf3 Bb5 Ndc4 d5+ Kd3 Bh2 Rb2 Rb1 Qdb8 Bg1 Qd6+ Kf7 f6 Kg6 f7+ Kf5 Qbc7 Bf6 Qb8 B8g7 f8Q Bh6 Bg2 Kg4 Bf3+ Kg3 Qf7 Kf2 Qbg8 Ke1 Qg3+ Kd1 Qf8 Rc8 a8N Bhg5 Nc7 Ra8 a7 Bh6 Qfg8 Bf8 Qf2 Ba6 Qgg3 Bb5 Rc6 Ba6 Bc5 d4 Ke4 d3 Kf5 d2 Kg6 e4 Ne5 Kc1 Bb6 d1Q Bd4 Qd2 Rc4 Kd1 Rc5 Na5 Rbb5 Qb2 Qfg2 Nb3 Q2f2 Rd8 a8R Rd7 Re8 Rd8 Rb6 Ra8 Rd8 Bc4 Rbb5 Ra4 Re8 Be6 Rd8 Bh3 Rc8 Bf1 Rb8 Qe6 Kh7 Qe7+ Kg8 Bg5 Qc6 Bf4 Rd5 Qc5 Kh7 Bg5 Qb6 Bfe7 Rg8 Bgf6 Qe6 Qd6 Qd7 Qe6 Qd8 Bc5 Qd6 Bb4 Rdc5 Qe7+
1bn4R/1pPNb1pN/bPB1Nb1k/Q2n3r/8/QB6/q1RP2KR/4q1Br w - - 0 1 illegal: No proof kernel
1Q1r4/Pn3q1r/nRK2QP1/N2p1Rq1/nn1BQ1N1/4R3/2b1pP2/b1kB1N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 Kd3 h5 Ke4 b5 Kd5 e5 g4 e4 a4 h4 c4 h3 c6 e3 f6 Kg6 c7 b3 f7 b4 a5 h2 a6 b2 a7 b3 c5 d6 c6 Qd7 Ra6 Rh3 Qf3 Qd8 Nd2 b1Q Rb6 b2 Nc4 Bg7 f8Q Na6 Qe4+ Bf5 c8Q Rh7 c7 Nf6+ Kc6 Qa2 Qb8 b1N c8R Nd5 Na5 Nbc3 Bb2 Na4 Ne2 Qb3 Rg1 h1N Bd4 Ng3 Bg2 Qf6 Bf3 Qe7 Re1 Ndb4+ Kb5 Bf6 Rc5 Qbf7 Re5 d5 Qfd8 Nh5 Ng3 Nf4 Bd1 Nfd3 Nf1 Ndc5 Qdd6 Nb7 Qc6 Kg7 g6 Kh6 g7 Kg5 g8N e2 Nh6 Kg6 g5 Qd8 Ng4 Qdg8 Qg2 Bc2 Re3 Kf5 g6 Qd8 Nd2 Be5 Rh1 Qg5 Rh5 Bh8 Nf1 Bf6 Rf3+ Ke4 Qh1 Bh8 Qf6 Bg7 Rf5+ Kd3 Re5 Qc1 Rhf5 Qg5 Nfe3 Kd2 Nf1+ Kc1 Re3 Bf8 Qe4 Bd6 Qc7 Rd8 Qb8 Be5 Bc5 Ba1 Bd4 Nd3 Kc6 Ndb4+
B3q2N/P3pNr1/k2Pp3/b1Q5/1QK1R1qP/1q1B1b1r/2N1q2R/B1nn1Q2 w - - 0 1 legal: proof: e4 a5 c4 h5 g4 d5 cxd5 a4 gxh5 a3 e5 Ra7 e6 fxe6 bxa3 Kf7 a4 Ke8 a5 Ra8 Ke2 Kd7 Kd3 b5 h4 c5 f4 Kc7 a4 Kb7 h6 g5 f5 g4 d6 g3 f6 g2 h7 b4 d7 b3 f7 b2 Nf3 g1Q Ne5 Bh6 f8Q Nc6 Qh5 Nb4+ Kc4 Nd3 Na3 b1Q Nf7 Ka6 Nc2 Bb7 Bb2 Nf6 Rh2 Qe8 d8Q Rg8 h8N Bf3 Qb8 Nc1 d4 Ng4 d5 Rg7 d6 Nf2 Bd3 Bd2 Qb4 Nd1 Ra3 Rb8 Ba1 Qg5 Ra2 Rb7 Re2 Qg4+ Re4 Rb8 Qa3 Rb3 Qb4 Qb2 Qg5 Qe5 Rb2 Qh2 Qd5 Qe2 Qc6+ Ka7 a6 Ra3 a5 Be1 Kb5 c4 Ra2 c3 Kc4 Bf2 Rb2 Bb6 Qcc5 Rb3 Nd4 c2 Ra2 Ka8 a7 Kb7 a8B+ Ka6 Rb2 Ra3 Ra2 Nb3 Rb2 c1Q+ Nc2 Qce3 Ra2 Ka7 a6 Nc1 Qf5 Ba5 Rb2 Qb8 Qc8 Qeb6 Qcc5 Qe8 Qf4 Bg2 Qf1 Bf3 Ra2 Qd7 Qa4 Qh2 Ne1 Qe8 Bc2 Bg2 Bb1 Rg3 Bd3 Bf3 Rf2 Rh3 Nc2 Qhg3 Rh2 Qg2 Qh5 Qbb8 Qa3 Kb6 a7 Ka6 Qhc5 Qe2 Qc3 Qb1 Q3b4 Qb3+
qRrB2rr/p1Q2R2/1n1PB3/2n1k3/Nr6/3pP1b1/Q1bNP1BN/2R2q1K w - - 0 1 illegal: No proof kernel
b2NnbB1/4nK2/1b3RP1/Bqqn1p1N/k7/1R1Q2p1/1QP1rPq1/3BQR2 w - - 0 1 illegal: No proof kernel
NN1rKb2/k1B1R3/p1n2p2/2nr1P2/2QB1n1N/P3BRQ1/1P1q3q/3r2Rq w - - 1 2 legal: proof: d4 b5 g4 h5 c4 e5 cxb5 f6 dxe5 Ke7 g5 Ba6 g6 Bb7 Bh3 Bd5 Bg4 Bf7 gxf7 hxg4 Kd2 c5 Kd3 d5 f4 Kd7 e4 Kc8 h4 Kb7 e6 g5 b6 d4 Kc4 a6 e5 g3 h5 g4 a3 d3 f5 d2 e7 g2 e8Q g3 e6 Be7 f8B Qd6 h6 Bd8 h7 Qe5 e7 Nc6 Qe1 d1R Rh3 Ra7 Qf7 Kb8 e8R Rd2 b7 Qe7 Nf3 g1Q Nh4 g2 Nc3 Qd7 Nb5 Qd6 Nc7 Qgh2 Na8 g1Q Rf3 Rd1 Bf4 Qgh1 Qg3 Nge7 Rc1 Ng6 Re7 Rg8 h8B Ba5 Qe6 Bb4 Bhg7 Rd5 Be5 Nf4 Rg1 Rd1 Bc3 Qdd2 Bh6 Rh8 Bd4 Rg8 Kb3 c4+ Ka4 c3 Qc4 c2 Bg5 Bd6 Bgh6 Ng6 Bhe3 c1N Bfh6 Nd3 Bhf4 Rd8 Bfe5 Ncb4 Ka5 Ngf4 Kb6 Nc5 Rc7 Nbd5+ Kc6 Bf8 Bd6 Rc8 B6e5 Ne7+ Kd6 Nc6+ Re7 Nb3 Nb6 Ra8 Kd7+ Ka7 b8N Rc7+ Ke8 Rd7 Bc7 Rd5 Bde5 Nc5 B5d4 Nd8 N8d7 Rc8 Na8 Nc6+ Bd8 Rc7 Nb8 Rcd7 Bc7 Rd8+
2BbQRqk/RBNqP2p/2Rn2P1/r4N2/1B5K/2p2b2/1nbqN1nP/Q7 w - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 d4 g5 dxe5 Nf6 a4 Na6 f4 gxf4 b6 Nb8 b5 Ra6 b7 Rc6 b6 Ng8 Qd5 Rc5 Qd1 Rb5 axb5 a4 Kf2 d5 g4 c5 e4 f5 g5 Kf7 g6+ Kg7 e6 c4 e5 d4 e7 f3 Kg3 a3 e8B a2 e6 f2 Bd7 c3 Na3 f4+ Kg4 f3 Qe1 d3 Kh3 d2 Nc2 d1B Bd3 f1N Nd4 f2 Ba3 Bf3 Be4 Ne7 Nge2 Na6 b8R Ne3 b7 f1Q+ Kh4 Nc5 b6 Nd3 Bb4 Qg2 Rf1 Nb2 Nf5+ Kg8 Ra8 Qc7 Rb1 a1Q b8N Qa2 Ra7 Bb7 Bc8 Qd7 Qd1 Ba6 b7 Bd3 Qe1 Bc2 Na6 Bh6 b8Q Bg7 Nc1 Qgd2 Beb7 Qb3 Nc7 Bf6+ Kh3 Qa2 Ne2 Ng2 Ra1 Qc4 R1a6 Qb3 Rc6 Bh4 Nd6 Nf5 Qa1 Bd8 e7 Kg7 Rf2 Re8 Qa8 Qg8 Qb8 Kh8 Qa8 Nh6+ Nf5 Nf7 Rf1 Nd6 Qb8 Ne3 Kh4 Ng2+ Kg3 Bb3 Ne3 Rf8 Qa8 Bfd5 Rf7 Bf3 Rf4 Qe8 Bd7 Rf5 Qb8 Ra5 Rf8 Ba4 Nf5 Bc2 Qc8 Qd1 Be6 Qd2 Qd7 Ndc4 Kh3 Qf7 Qe8 Qg7 Kg3 Qgd4 Bec8 Qd7 Kh3 Nd6 Kg3 Ne1 Kh4 Ng2+
7n/3PR1Qr/p2rn1r1/K1rB3p/2PNnB1P/3QR1b1/3NBkrN/3qR3 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 f4 c5 fxg5 d4 Ra4 Bb7 Ra1 c4 d3 Bd5 exd5 cxd3 Kd2 Kd7 b4 Kd6 g4 Ke5 c4 Kf4 h4 Kg3 d6 f5 b6 e5 b5 h5 b7 e4 b6 e3+ Ke1 e2 Kd2 e1R g6 a6 g7 f4 g5 f3 g6 f2 Nf3 Re6 Ra2 Ne7 g8B Nd7 b8N Nc5 g7 Ng6 b7 Rh7 Ra3 Nh8 Be2 f1R Nc6 Kf2 b8R Rg6 Nh2 Rfg1 Bd5 R1g2 g8Q Ne6 Rb7 Rc8 Re1 Bg7 Re7 Be5 Qg7 Bg3 Na5 Rc5 Nb3 Qf8 d7 Qf3 Qc2 Qg4 Kd1 d2 Qd3 Qf3 Kc2 d1N Bf4 Nc3 N1d2 Ne4 Nc1 Qg4 Kb3 Qf3 Kb4 Qg4 Ncb3 Qf3 Qc3 d3 Nd4 Qg4 Nd2f3 d2 Qd3 d1R Nd2 Rb1+ Ka4 Rb6 Rc3 Rd6 Kb4 Rc8 Ka5 Rcc6 Qb1 Rc7 Re3 Rc8 Qd3 Qf3 Bf1 Qd1 Be2 Rc5+
B4N1q/n1B1qp1Q/pK1n1PRb/N1Q1N1r1/P3q1P1/r1BR4/k6n/4Qq2 w - - 0 2 legal: proof: d4 b5 c4 e5 dxe5 c5 b4 g5 h4 gxh4 bxc5 b4 Qb3 Ba6 Qd1 Bb5 cxb5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 d5 f4 h5 e4 a6 g4 b3 a4 b2 b6 h3 c6 h2 b7 h4 c7 h3 c8Q+ Nd7 b8B Qg5 f5+ Ke7 e6 Ne5 Kc5 d4 Qd3 Nc6 e5 Nf6 Nf3 Ne8 Nbd2 b1Q Ra3 Nd6 Bb2 Bh6 Bc3 Na7 Bg2 Qf1 Kb6 Qe3 Qb1 d3+ Qc5 Qe4 Bc7 Rag8 Rb3 Rg5 Nc4 d2 Na5 d1N Ra3 Ne3 f6+ Ke8 e7 Kd7 e8N Ke6 Qe1 Qe2 Qh4 Nf1 Qh5 Q2e3 Qg6 Qe1 Qh7 Q1e2 Qe3 Kd5 e6 Qe1 Ng7 Re8 e7 Rd8 Nb3 Kc4 e8Q Qe7 Qe5 Qe4 Ne6 Rd7 Nf8 Rd8 Rg1 h1Q Qef5 Qh2 Rh1 Qhf4 Qe5 Nh2 Qa5 Qc1 Qe5 Qf1 Na5+ Kd3 Q8b5+ Kc2 Qbc5 Kb1 Qg3 Rc8 Ne5 Rd8 Rb3+ Ka2 Qge3 Ne8 Bf3 Rd3 Qe1 Nd6 Bg2 Qee2 Ba8 Qe4 Rb1 Rg3 Rd1 Rf3 Bb2 Ra3 Bc3 Nf3 Rd3 h2 Rg1 h1Q Rg3 Qhg2 Rh3 Nh2 Rh5 Qh3 Rh4 Bg7 Rh6 Qh4 Rg6 Qh5 Qg8 Qh8 Qh7 Bh6
2N1B2B/B2q1PR1/2P1rp2/k1K2Pq1/bb6/p2Rn3/n4RQ1/Q2nnqQN w - - 0 1 legal: proof: h4 d5 c4 Kd7 a4 c5 f4 h5 d4 g5 g4 b5 axb5 a5 gxh5 g4 e4 a4 h6 a3 e5 f6 h5 Rh7 e6+ Kc7 b6+ Kd6 b7 Qa5+ Kf2 Qd8 f5 Rg7 h7 Rf7 exf7 cxd4 b4 d3 b5 d4 b6 d2 c5+ Kd7 c6+ Kd6 Bg2 d3 Bh3 Ke5 Bf1 Kd6 Ra2 Bg7 Bb2 Nh6 Bc3 Qd7 Bg2 Na6 Qa4 Qc7 Bb2 Be6 Qc2 Rh8 Bc1 Bc8 Ra1 Ng8 h6 Nb8 Qd1 Qd8 Bf1 Bf8 Ke3 Kc5 Ra2 Kb5 Nh3 e5 Nc3+ Kb4 Nd5+ Ka5 Rg1 e4 Kd4 g3 Nf2 g2 Nh1 Na6 b8Q e3 b7 e2 Qe5 e1N b8R Qe7 Rb3 Qa7+ Nb6+ Bc5+ Kc4 Ne7 Qa1 Rd8 h8Q Nd5 h7 Re8 Qg8 Bb4 h8B Be6 Nc8 Qd7 Bb2 Re7 Bd4 Re8 Qf3 d1Q Rf2 d2 Rd3 Qe2 Qh3 d1N Ba7 Qe3 Be2 Qg5 Bf3 Re7 Kd4 N5e3+ Bd5 Qb7 Ba2 Bb3 Qg7 Bc2 Be6 Ba4 Bd7 Re6 Be8 Qc7 Rgf1 g1Q Qg2 Bd2 Qg8 Nb4 Kc5 Qd7 Qg7 Na2 Qg6 N1c2 Re1 Qf1 Qg1 Qf4 Q6g2 Bc3 Ree2 Ne1 Rb2 Qg3 Rb4 Qh4 Rg4 Qg3 Rg6 Qg5 Rg7 Bb4#
RN1q1B2/1B1rp2b/4K3/n1npQ2N/Qr1P1r1N/1rR2B2/1RP1qn1P/5k2 w - - 0 1 legal: proof: e4 f5 exf5 b5 g4 c5 b4 h5 a3 hxg4 Bc4 g6 Bd3 Bg7 Bf1 Bc3 bxc5 b4 Bb2 b3 Bc1 Bb4 axb4 Qa5 Bh3 Qb6 Bf1 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kd5 Kf4 b5 a5 f6 g3 f7 b2 b6 a4 c6 g5 c7 g4 b7 a3 Qe2 a2 Nc3 b1R Ne4 g2 Nf6 g3 f8Q Na6 b8N Rh3 Qe8 Nh6 Nf3 g1Q Nh4 Rb4 Bg2 Qe1 Bf3 g2 d4+ Qd2 Rd1 g1R Rb1 a1N Rb2 Rf1 Qb5 Qe3 Rd3 Nb3 Rc3 Na5 Qh5 d6 Qa4 Bf5 c8B Ra7 Bb7 Ng4 Bd2 Be4+ Ke6 d5 Qh8 Kg5 Nh5 Bh7+ Be4 Rg3 f3 Nf2 f4+ Kg4 f5 Kh3 f6 Qe1 f7 Qe2 f8R Rd3 Bh6 Nc5+ Kf7 Rg3 Qe5 Re3 Re8 Rd3 Bf8 Re3 Nf3 Kg2 Nh4+ Kg1 Bf3 Rd3 Bc8 Rd7 Bb7 Re3 Rc4 Reb3 Rc3 Qb6 Nc6 Qc7 Ra8 Qd8 Nb8 Rd1 Qa3 Kf1 Qa4 Rd3 Qc7 Re3 Qe5 Re4 Qg7 Na6 Qe5 Rf4+ Ke6 Nc5+
4R1QB/2kPQr2/1pb2B2/NPP1r2Q/K1N1p3/3Bq1n1/2r1RbR1/q2br3 w - - 0 1 illegal: No proof kernel
1N1R1BBN/1Q1Krnrp/1r2r1P1/4bRqP/1kP1B3/pn2q3/RQ1n1N2/8 w - - 0 1 illegal: No possible last move, all moves rejected
3rkqB1/N3pq2/1N2BRqb/1P2P3/1p3r2/2BrRbPR/qn1K1Q2/1NQ5 w - - 0 1 illegal: No possible last move, all moves rejected
Bn2N2n/Q1q3Pn/1R1bB1Pq/3rb3/2k1pR2/1N1N4/Kb2PBp1/1R2Qb2 w - - 0 1 illegal: No proof kernel
Rq2Nnq1/qN1RP1K1/1p1Q1Q2/pRB1rNn1/PPQ5/1q5k/2r2r1B/2b5 w - - 0 2 legal: proof: f4 d5 c4 f5 cxd5 e5 fxe5 h5 g4 f4 Bh3 Bf5 gxf5 Rh7 Bg4 hxg4 Qb3 Rh5 Qd1 Rh8 Kf2 Kf7 e4 g5 b4 c5 d4 c4 h4 c3 f6 Kg6 h5+ Kh6 d6 b6 f7 g3+ Kf3 a6 Kg4 c2 Kf5 f3 d5 g2 d7 f2 e6 f1R+ Nf3 g1Q e7 Nf6 e8N Qe3 e5 g4 e6 g3 d6 g2 Nd2 g1Q Ne4 Qg8 Qd5 Qd2 Qc4 Be7 f8B+ Qg7 Nc5 Rf2 Nb7 Qc8 d8R Nh7 d7 Bg5 Bc5 Qe3 e7 Qb3 Bf4 c1Q Nd4 Qg8 a4 Qd2 Rad1 a5 Ke5 Qdc3 Bh2 Bc1 Rhf1 Kg5 h6 Rc2 Rf5+ Kh4 Rd2 Ng5 Kf6 Kg4 h7 Kh3 Rd5 Qg3 Nf5 Qcc7 Rc8 Qgf4 d8Q Qfg3 Qd6 Qf4 Ng7 Nd7+ Kg6 Nf8+ Kh6 Qfg3 Ne8 Qb8 Rd8 Qa7 Re5 Qe6+ Kg7 Rc8 Rd1 Rf2 Red5 Rc7 Ra8 Qf4 Bd4 Qc8 Rb5 Qcb8 Bc5 Qfg3 Qf6 Rc6 Rd7 Re6 Qfd4 Re5 Qd6 Rg8+ Kh6 Rg7 h8Q Rf7 Qhf6 Rc2 Qfe6 Rf6+ Kg7 Qg4 Ne3 Rf1 Nf5 Rff2 Qf6 Qg2 Kg8 Qd5+ Kg7 Qg8+
2q1n3/2b2np1/1r1B2Kr/r1N1P2Q/3p2P1/kN5r/P2B1RBn/RQ2N1qR w - - 0 1 illegal: No proof kernel
RR4Nb/1qP2QBB/1N1R1pq1/q1N2br1/2P1r3/2n2Pp1/B1b2k2/KQ5q w - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 h5 gxh5 Nd7 dxc5 axb4 Be2 d4 Bc4 Nb6 Bf1 Nd5 exd5 Be6 Kd2 Bd7 Ke1 Bc8 Kd2 Kd7 h4 e5 a4 g5 a5 b5 c6+ Kd6 f3 Kc5 d6 g4 h6 f6 a6 e4 h5 b3 c7 g3 d7 d3 Kc3 b4+ Kb2 Kd4 a7 e3 h7 d2 h6 e2 Nh3 Ke3 Nf2 e1Q Nd3 Qf2 Na3 Bg7 Nc4+ Kd4 Nc5 Qf8 d8N Qe1 Nf7 Bf5 Bd3 Qb8 Nb6 Ke3 c4 Qe8 Bb1 Ne7 Ba2 Rg8 h8Q Kf2 h7 Nd5 Nh6 Nc3 Qc2 Qb5 Qb1 Rae8 a8B d1B Be4 Bc2 Rg1 Qd2 Rd1 Qd5 Rd4 Qb7 Rd6 Qa5 Bf4 Re5 Bg5 Rge8 Qf8 Bh8 Qf7 Rg8 Bd3 Re4 Bc1 Rg5 Ng8 Rg7 Bh6 Rg6 Bg7 Rg5 Kc1 b2+ Kd2 Re6 Qc1 Bg6 Nc8 b1Q Bb3 Qa4 Nge7 Bd1 Nb6 Qb5 Ra6 Qa5 Ba2 b3 Ra8 b2 Bf5 Q1e4 Qc2 b1Q Qc1 Qb3 Qb1 Qe1+ Kc1 Qh1 Be4 Qba4 Kb2 Qc2+ Ka1 Qd3 Bh6 Bg7 h8R Bc2 Rhb8 Bh8 Bf5 Re2 Bg7 Qde4 Ng8 Qe8 Qe6 Re4 Qd5 Bf7 Bh7 Bg6 Qe6 Bf5 Qd7 Qeh5 Qf7 Qg6
4QbR1/k4BPN/qN1p2QP/q1r4B/rR1Qqp2/B1qP4/nn5K/R5n1 w - - 0 1 illegal: No proof kernel
1NB1K3/1p2RqQ1/1nrB1RN1/2B4n/1P1qrrR1/kq2P1qb/P1p3Q1/2N5 w - - 0 1 illegal: No proof kernel
1Q1RQ1n1/BN4qP/1R1p2N1/1b3B2/b1N3qP/bk1K1rRq/p2P4/qn4B1 w - - 0 1 legal: proof: g4 e5 f4 exf4 b4 h5 gxh5 a5 a4 b5 axb5 a4 b6 Qe7 c4 Nf6 c5 Ra6 b7 Qd8 b5 Rb6 cxb6 Ng8 h4 Ke7 e4 Kd6 Ke2 Kc5 e5 Kb4 h6 f5 e6 g5 e7 c5 e8R a3 h7 c4 Re6 c3 Rh6 g4 Re6 c2 Qe1 g3 Rh3 a2 Rd6 g2 Rg3 f3+ Kd3 f2 Rd5 f4 Bb2 c1Q Ne2 g1Q Bh3 f1Q Bd4 f3 Bf5 f2 Na3 Qg5 Nc4 Qh3 Nf4 Qg7 Qe8 Kb3 Ng6 Nc6 b8N Na5 b7 Ba3 b6 Qgg2 Na6 f1B+ Qe2 Qg4 b8B Q2h3 b7 Qb2 Re1 Qa1 Bg1 d6 Bba7 Bd7 b8Q+ Bb5 Rd4 Bg2 Qee8 Bb7 Rd5 B7c6 Rc5 Bd7 Rc8 Bc6 Bab6 Ba4 Ba7+ Bcb5 Re7 Nh6 Re1 Rf8 Rd8 Ng8 Ree3 Nc6 Re7 Nd4 Rb7 Ne2 Rb6 Nc3 Nc5+ Kb4 Qf7 Nb1 Nb7 Kb3 Qe8 Rf7 Bc8 Rf2 Bf5 Rf3+
QR3b1q/pN2b1b1/1r2Rp2/Q1K2P2/b1n2R1N/P2P2k1/1qrQ1r2/3N2BB w - - 1 2 legal: proof: e4 b5 c4 d5 b4 dxe4 g4 h5 gxh5 c5 bxc5 b4 Qa4+ Nc6 Qc2 Nd4 Qd1 Nb5 cxb5 Qc7 Nh3 Qd7 Ng1 Qd8 Ke2 Kd7 Ke3 Ke6 h4 Kf5 f4 g5 c6 e5 d3 g4 b6 g3 b7 b3 b8R b2 c7 g2 h6 Ne7 h5 Nc6 a3 Bd7 c8Q Na5 Nf3 Kg4 f5 g1R h7 Ba4 h6 Kg3 Qc3 Rg2 Rh4 Rc2 Qdd2 f6 Qc5 Bg7 Nc3 b1Q Nd1 Qb2 Bg2 Qe8 Rf4 Nc4+ Ke2 e3 Bh1 e4 Qa5 Qc8 Nh4 Rd8 h8N Rd6 Nf7 Qh8 Re8 Rb8 h7 Rb4 Nd8 Rb3 Re6 Rbc3 Kf1 e2+ Kg1 e1B Rb1 e3 Nb7 Rb3 Kf1 e2+ Kg1 Qg8 h8Q Qh7 Qa8 Qh8 Qdc3 Rb4 Be3 Bd2 Bc5 e1B Bd4 Bc1 Qd2 Rb5 Bb6 Re5 Bc5 Re2 Kf1 Rh2 Bg1 Bf2 Ke2 Bb6+ Kf1 Bd8 Ke1 Be7 Kf1 Rf2+ Ke1 Rf1+ Ke2 Ne5 Ke3 Rf2 Ke4 Bgf8 Ke3 Nc4+ Ke4 Rc6 Kd5 Rd6+ Kc5 Bg7 Qe2 Bd2 Qe1 Bc3 Qd2 Bef8 Qa6 Ba5 Qb5 Bd8 Qba5 Bde7 Nd8 Qc1 Rb8 Qb2 Nb7 Rb6+
3NNQb1/1p1p1q1R/k1b1q3/PnQb4/K2n2qb/3r2BB/3PR2P/1Q3BN1 w - - 0 1 illegal: No proof kernel forced: wxLB
5Q1N/r3N3/1rRbQ3/5pbN/P2Rb2Q/nPn1B2p/K2b1P2/1bB1k1rB w - - 0 1 illegal: No possible last move
2rR2B1/nbB3b1/3KPN2/nQ2pp2/b1rr1P2/2rBPR2/QQ1n4/2RN3k w - - 1 2 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 Qb6 h4 gxh4 d5 Qe6 dxe6 Bg7 Ra4 Bh6 Ra1 Bf8 Kd2 Ke7 Kc3 Kf6 Kb4 Kf5 g4+ Ke4 f4 d5 c4 f5 g5 h5 g6 h3 b6 a5+ Kb5 a4 c6 a3 e3 h2 c5 h4 b7 d4 g7 a2 c7 d3 c6 d2 Nf3 h3 Qb3 d1B Qb2 Ra4 Bd2 Rc4 Ba5 Nf6 g8B Bg7 Kb6 Rd4 Kc5 Ba4 Bb5 Rc4+ Kd6 Rc3 Rc1 h1R Nh2 Rd1+ Qd2 Rc4 Ng4 Kf3 Nc3 h2 Qd3 Rd2 Nd1 Kg2 Qd4 Rdc2 Qb2 h1R Bb6 Rc3 Bd3 Rf1 Rab1 a1N Qa2 Kh1 Rb2 Rg2 Rf2 Nb3 Rf3 Na5 Qb2 Rgc2 Qb5 Nbd7 b8Q Bb7 c8R Rg1 Bc7 Nb6 Rd8 Ne4+ Ke7 Rc4 Nf6 Nd2 Kd6 R2c3 Qa8 Nd5 Qaa6 Ne7 Qb2 Rg2 Qab5 Rf2 Bb6 Rfh2 c7 Nec6 c8Q Na7 Qcc5 Rf2 Qca3 Rg2 Qaa2 Rf2 Bf7 Rf1 Bc7 Rf2 Rd7 Rc8 Bg8 Rh2 Rd8 Rh8 Bh7 Rf8 Bg8 Re8 Rd7 Red8 Ke7 Re4 Rd5 Rd6 Rd4 Rdc6 Rd8 R6c4 Kd6 Red4+
B2Q1bn1/7b/1qN1n1p1/p2B4/P1bB1n2/N1QPQrk1/R1RP4/3K1nNb w - - 0 1 legal: proof: g4 a5 b4 c5 bxc5 f5 h4 b5 h5 d5 h6 d4 Na3 d3 exd3 Ra6 Nb1 Rf6 Rh2 Rf7 Rh4 g6 Rh1 Rg7 hxg7 fxg4 a4 Kf7 f4 Kf6 c4 Kf5 c6 h5 c5 e5 c7 h4 c6 g3 Be2 e4 Ra3 h3 Qb3 e3 Qc2 h2 Qb3 g2 Qb4 Nd7 Ra2 Ba6 c8Q Qb6 c7 Rh3 Bb2 Rf3 Qb3 Kg4 f5 b4 f6 Kg3 f7 Bc4 Qc3 b3 Na3 Nc5 Qe8 Ne6 Ba1 b2 c8N b1B Ne7 Bc2 Nc6 B2b3 Bf1 e2 Qd8 Bc5 f8Q Bd6 Qf5 Bf8 Rc2 Ba2 Qc5 Bab3 Qe3 Ba2 Nh3 g1N Bg2 Bab3 Qb4 Ba2 Bd4 Bab3 Qc3 Ba2 Ng5 Nh3 Rg1 Nhf4 Nh3 h1B Rf1 Bb5 Ng1 Bac4 Ne5 Be8 Nc6 Bf7 Ra2 Ne7 Rc2 Bg8 Ra2 Bh7 g8B Nc7 Bd5 Nce6 Bh3 Ng8 Bf5 Ng7 Bc8 Nge6 Bb7 Ne7 Rc2 Ng8 Ba8 Kh2 Qe5 Rg3 Kf2 e1N Qe4 Neg2 Ra1 Ne3 Ke1 Rh3 Raa2 Nf1 Qe3 Rf3 Kd1 Kg3
r3Q1r1/3bRK2/1Qp1BbR1/p4Q1P/P4n1N/1bb3NR/1BqP3r/3k2rN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 e4 e5 c4 Nd7 exd5 bxc4 Bg2 e4 Bf1 Ne5 fxe5 Be7 Qb3 Bc5 Qd1 Bf8 Kf2 Ke7 Ke3 f5 Kf4 a5 Kg5 c3 Kg6 f4 a4 c2 b4 e3 h4 f3 b5 f2 h6 e2 d6+ Ke6 d7 Kd5 e6 Ke4 b6 Kd3 e7 c6 e8Q Ba3 h7 Bf8 b7 Nf6 b8Q Bb4 h5 Nd5 Kf7 g5 Nh3 g4 Nc3 g3 Bb2 c1B Ne4 g2 Ng3 g1R Qb6 Rg8 h8N Nf4 Ng6 Bc3 Nh4 Qc7 Bg2 f1B Bd5 e1R Qf3+ Kc2 Nf2 Bc4 Be6 Bb3 Rh3 Re2 Nfh1 Kd1 Qe4 Bf6 Qf5 Rh2 Ra3 Qe5 d8R Qc5 Rd7 Qc2 Re7 Bd7 Ra1 Bc4 Ra3 Bd5 Rd3 Bc4 Rd6 Bb3 Bd5 Bc3 Rg6 Bf6 Bc4 Bc3 Be6 Bf6 Be5 Bb2 Bd4 Bc3 Be5 Bb4 Bb2 Bbc3
8/pRK1n2P/P2bN1n1/1RB1Qb1k/2p2b2/b1N1n2B/2P2N1B/1q1nQRr1 w - - 0 2 illegal: No possible last move
2N1R1bn/1k1B3r/1r3R1q/7p/QKPNbQPN/2r3p1/4br1P/2BQB1b1 w - - 0 1 illegal: No proof kernel
b6k/P1r1N1rB/2n4r/Np1n1P2/K2R1QB1/1Qq1n3/1P2Rpr1/n1B1NR2 w - - 0 1 illegal: No possible last move, all moves rejected
1Nq2kN1/qb1p2p1/Rn2Q3/R1PnNnR1/n3B1q1/Qr2Q1P1/2qP2KB/8 w - - 0 1 illegal: No proof kernel
r2k3b/B2r3P/Q1p2rRK/2P4p/QR6/2NR3P/1rN3Qn/1Brbb1bB w - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 e5 Qh5 e3 Qd1 e4 g4 h5 g5 Nd7 Qg4 Qe7 Qd1 Ne5 fxe5 Qd8 Ra5 Qd6 Ra1 Qh6 gxh6 Bg4 Nh3 Bd7 Ng1 Bc8 Ke2 g5 c4 f5 b4 a5 d4 f4 e6 c6 h3 a4 b6 g4 e7 a3 b7 a2 b8Q g3 d5 g2 d6 Ra4 b5 Ra3 b6 Rd3 d7+ Kf7 d8R Kf6 e8B Ke7 h7 Rd6 b7 Rh6 Qa8 Bf5 b8Q Bg4+ Nf3 g1B Bg2 Bg7 Bg6 Nf6 Rd3 Rd8 Nc3 Rd7 Qg8 Bh8 Rb1 a1R Qda4 Ra2+ Bd2 Rb2 Bf5 Rg6 Q8a6 Rg7 Qd5 Kd8 Rh2 Rg8 Bh1 Rf8 Rg2 Rg8 Ke1 e2 Be3 Re8 Nd4 f3 Nc2 f2+ Kd2 f1R Ba7 e1R c5 Bd1 Rg6 Ng4 Qda2 Nh2 Qg8 Ra2 Rb4 Rb2 Qga2 Be2 Qd5 Rc1 Qg8 Rf2 Ke3 Bd1 Qd5 Rf8 Qda2 Rf6 Qd5 Rd2+ Kf4 e3 Kg5 e2 Kh6 e1B Qg2 Re2 Be6 Re3 Ba2 Re8 Bb1 Kc7 Na2 Ra8 Nc3 Kd8
b1n2n1N/4qB1k/1Qr2r1B/NB4pp/1P1r1pn1/P3Q1R1/R1b3P1/5NRK w - - 0 1 illegal: No proof kernel
3Q4/2b2kbN/1q4Np/1P4Bp/PP1pB1K1/6QR/nrr1RBR1/n2Nn2b w - - 0 1 illegal: No possible last move
1k3n2/1BNb3K/1r1Qp2p/2B3R1/RbQbn1r1/1qP1pBn1/2R3PP/N5Q1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 Ba6 fxg5 Bc8 Kf2 Kd7 Ke3 Kc7 Kf4 a5 d4 f5 g6 h6 g7 e3 c3 a4 c6 a3 b6+ Kd6 d5 a2 c7 Nc6 b7 Rb8 Nh3 Nb4 Ng5 Nc2 Be2 Nb4 Nd2 Na6 Qg1 Nc5 Ba3 Bd7 c8B Kc7 Bf3 Ne4 Nb3 Rh7 Rc1 a1B Rc2 Bb2 Bc5 Ba3 Na1 Bb4 Ke5 f4 d6+ Kc6 Ne6 Qb6 Nc7 e6 Rc1 Rh8 Rc2 Ne7 g8R Qb5 Rg5 Rg8 Rh5 Rg4 Rg5 Ra8 b8Q Ra6 Qa7 Rb6 Qa2 Qc4 Qa6 Qb3 Qc4 Ng6+ Kd4 Be8 d7 Be7 d8Q Bd7 Qh8 Bd8 Qe5 Bf6 Ba6 Bc8 Bb7+ Kd7 Bd1 f3 Be2 f2 Bf3 Be7 Qf4 f1N Qe5 Kd8 Qf4 Bd7 Qd6 Nf4 Ke5 Nfg3 Qb1 Bf8 Rd1 Be7 Rd4 Bf8 Qg1 Be7 Ba8 Kc8 Bd5 Kb8 Bb7 Nf2 Re4 Bf8 Kf6 Ng6 Kf7 Bg7 Kg8 Bf6 Rd4 Nfe4 Kh7 Bg7 Ra2 Be5 Rdd2 Bh8 Rdc2 Bd4 Ra4 Nf8+
1Bk1br2/3RQBpN/1PKPPb2/1n3n2/Qr3R2/1p3n1B/4N1pq/b3QN2 w - - 0 1 illegal: No proof kernel
Q3q2r/b1r1pnNB/2P2b2/Q4Pp1/4K3/1p1b4/PnN1RBRR/1kBr3N w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 Kf7 Kd3 Kf6 h4 Ke5 c4 b5 f4+ Kf6 a6 d5 h5 g5 h6 b4 h7 g3 a7 b3 c6 g2 c7 d4 c5 Nd7 Ke4 d3 Qd2 Bh6 Ne2 g1B Na3 Bf2 Nc2 Bf8 Qa5 d2 Rh2 d1R Ng3 Bg7 Bd3 Rg1 Nh1 Ba6 c8R Rd1 c6 Ne5 Rg2 Rb8 a8Q Nc4 Rb1 Be3 Rb2 Rb7 Re2 Nh6 Rg2 Rg8 h8B Qe8 Re2 Ba7 Rd8 Kf7 f6 Ke6 f7 Rc7 f8N+ Kf6 Rc8 Nf7 Ne6 Kg6 Rg2 Bf6 Bg7 Rh8 Re2 Bc3 Bd4 Bb5 Bf2 Bf6 Ng7 Ba6 Ne1 Bb5 Rbd2 Nb2 Rd8 Bc4 Bb1 Bb5 R8d3 Ba6 Rh3 Bb5 Rh2 Bd3+ Kd5 Nd6 Nc2 Nf7 Nh5 Kf5 Ng7+ Kg4 Rg2+ Kf3 Ne3 Qb8 Rh2 Nh6 Be1 Bg6 Reg2 Qe8 Bf2 Nf7 Bd3 Bh5 Bh7 Bg6 Nc2 Bd3 f5 Kf4 Re2+ Kf3 Re3+ Kf4 Re6+ Kf3 Bce3 Ke2 Re4 Rd2 Bf4+ Kd1 Re2 Kc1 B4e3 Kb1 Bf4 Ba6+ Ke4 Rd1 Bc1 Bd3+
2nb2Q1/Q1rpp3/n2q4/N1Bb2PQ/1PKRrN2/1B3BP1/b2pR3/k2N3n w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 c4 h5 b4 h4 f4 a4 b6 a3 g3 h3 c5 h2 f6 Ke6 f7 Kd5 c6 a2 c7 Bg7 f8N Rh4 f5 Nf6 b7 Ne8 f6 Ra7 f7 Re4 Ne6 Be5 f8Q Na6 b8Q Bb7 c8B Nd6 Qf2 Qb6 Na3 Qc7 Rb1 a1N Qh5 Nb3 Nc4 Nd2 Na5 Bc6 Bb7 Nc8 Be2 Qd6 Bd1 Bf4 Ba8 Rc7 Nh3 Ke5 Rf1 h1B Bb3 Bd5 Re1 Be3 Re2 Bc4+ Kc2 d3+ Kc3 Bb6 Nef4 Bd5+ Qc5 Bf3 Bb2 Bg4 Qa7 Be6 Rd1 Bg8 Bc1 Bf7 Qc6 Bg8 Nf2 Bge6 Kb2 Kd4 Qcb7 Bg8 Qbb8 Bgf7 Ka3 Kc3 Ka4 Bfe6 Kb5 Bg8 Bc4 Kc2 Bb3+ Kb1 Bb7 Ka1 Ba8 Nb1 Be3 Bgf7 Bc5 d2 Rc1 Bg8 Rc4 Bgf7 Rd4 Bg8 Ka4 Nc3+ Ka3 Nd1 Bc6 Ne3 Nd1 Ng4 Ka4 Nf2 Kb5 Nh1 Bb7 Rc6 Qba8 Bd8 Q8b8 Rc7 Ba8 Bde6 Bad5 Re5 Bf3 Bd5 Qba8 Bh7 Q8b8 Bb1 Qba8 Ba2 Q8b8 Bc6+ Kc4 Re4 Qba8 Ba4 Qd5 Bc6 Qg8 Bd5+
3R1KBr/2pb4/1q1r1n2/PrpNnR1p/1P3b2/1PNQB1b1/2QR2N1/kB6 w - - 0 1 illegal: No proof kernel
1N1Q4/1p1RB2k/P1P1r2p/1KbN3Q/R1p1n1qr/3BP2n/4B1b1/1Q2Rb1r w - - 0 1 illegal: No proof kernel
Q3Kn2/p1p1P3/1Q1BrPk1/BrN3p1/1N1b4/2Pbq1nB/Qb1RN1R1/3n4 w - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Ke2 Kf7 Ke3 g5 Kd4 d5 f4 g3 h4 g2 b4 Ne7 Kc5 d4 f6 d3 h5 d2 b6 Bd7 b5 Bh6 b7 Bg4 f5 Bh3 e6+ Kf8 f7 Kg7 f8B+ Kh7 b6 Ng6 f6 Bg4 Qe2 d1N Bd6 Ne7 Nd2 Qc8 Ra2 Bf5 Nb3 Bd3 Bd2 Nbc6 b8N Ng6 b7 Nc3 Rh2 Rd8 Na6 Rd7 b8Q Nb4 Qb6 Nc6 Nb4 Bf8 h6 Nd1 Kd5 Qa6 Nc5 Nd4 Be1 Nf5 Kc6 Rdd8 Qd2 Re8 Kd7 Qa5 Ne2 g1B Bh3 Qa3 Rg2 Rab8 Rb2 Ng3 Ra2 Nh4 Rb2 Kg6 h7 Bd4 h8Q Ba6 Ra2 Bb2 Qd5 Qe3 Qa8 Bd3 Qg8+ Kh6 c3 Ng6 Bf2 Bc1 Rd2 Bb2 Qbc6 Rb5 Qb6 Be7 Qf7 Rh8 Qfg8 Nf8+ Ke8 Kh5 Bf4 Bd6 e7 Be5 Qge6 Bd4 Bd6 Kg6 Qa2 Rh4 Nca6 Be5 Qbb7 Qf3 Bb6 Bd4 Nc5 Re4 Ba5 Qe3 Qb6 Re6
1QBBK2b/3bNQ2/5QrP/prpn2R1/1Pk1p2q/2N1R2N/2R2P2/2q2b1n w - - 0 1 illegal: No proof kernel
4R2Q/4bBq1/B2P3Q/4nN2/Pq2Rbkr/Bpp2Nr1/2PQ2pr/K4Rn1 w - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h3 d5 exd5 f5 Bd3 Bd7 Bc4 Bb5 Bf1 Be2 gxf5 g4 Rh2 g3 Rh1 Bg4 hxg4 Ra3 Bb2 Ra6 Bc1 Ra8 a4 Kf7 d4 Kf6 Kd2 Kg5 f3 e5 d6 c5 d7 b5 d5 h5 f6 c4 f7 g2 d6 h4 Ba3 e4 Kc1 h3 Kb2 c3+ Ka2 e3 Bc4 h2 Nd2 e2 Nb3 e1B Nd4 Bg3 Qd2+ Bf4 Re1 b3+ Ka1 b4 Nf5 Nf6 Re4 Qe7 d8Q Nfd7 Ba6 Nc6 Qc8 Nce5 Qe8 Bh6 f8R Qg7 Qe6 Rc8 Re8 Rc4 Qg8 Rd4 Qh7 Rg8 Qh8 b2+ Kb1 Kg6 g5 Kh5 g6 Bg5 f4 Kg4 Nf3 Be7 Rf1 h1R Ka2 Rh2 Kb1 Nd3 Ka2 Nf2 Kb1 Nh3 Ka2 Qh7 g7 Ng1 Kb1 Ne5 Ka2 Rf8 g8B Qg7 Bf7 Rc4 N5h4 Bhg5 f5+ Bf4 f6 Rd4 Qh6 Rh8 Nf5 Rd3 Bg6 Rh4 f7 Re3 f8Q Rd3 Ne1 Rg3 Bf7 Rh7 Qh8 Rh2 Qf6 R7h4 Qfh6 Qg8 Nf3 Qg7 Kb3 b1Q+ Bb2 Qc1 Ka2 Qd1 Bc1 b3+ Ka1 Qe2 Bb2 Qb5 Ba3 Qb4
b3B1nQ/2K5/2prq1PB/2Bp3N/1Q3q1r/1qQ1Rp1b/3PP3/R1NN2nk w - - 0 1 legal: proof: h4 e5 a4 b5 b4 g5 hxg5 Be7 axb5 Bd6 b6 Bb7 f4 exf4 c3 Bf8 b5 Bb4 cxb4 Bc8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 g4 h5 b7 f6 b6 d6 g6 f3 g5 a4 b5 f2 g7 a3 g6 h4 Nc3 a2 Nf3 h3 Ne1 h2 Qc2 Qe8 Ba3 Ra7 Nd3 Ra6 Nd1 Nd7 b8Q Ne5 b7 Nf3 b6 Ng1 Bg2 f1Q Nc1 f5+ Kd4 f4 Bc6 Rh3 Bc5 Rh4 Qc3 Kf5 Kd5 Kg4 Bd7+ Qe6+ Kc6 Qf2 Be8 Qfe3 Qa8 Kg3 b8B Kg2 Qb7 Qb3 Ba7 Bh3 Bb8 Nh6 g8N Qee6 Nf6 Ng8 Qa8 Qg4 Nh5 Qge6 Rb1 a1Q Qb7 Qb4 Rb3 Qa2 Qc8 Qbc4 Qh8 Qb4 Re3 Qab3 Qc3 Nf3 Re1 h1B Rf1 Ng1 Qd8 Ra3 b7 Qd4 Bba7 Ra6+ Bab6 Qdf6 b8Q Qg5 Qdf6 Qg3 Qfd4 Kh2+ Qe4 Bf3 Qd8 Kh1 Qdf6 Qg5 Qh8 Qge5 Kb7 Qd4 Kb8 Qdc4 Qed4 Ba8 Qb4 f3 Qdc3 d5 Re1 c6 Kc7 Ra5 Bf8 Qcg4 Bbc5 Ra7+ Kd8 Rc7 Bh6 Rd7+ Kc8 Rd8+ Kc7 Rd6 Nd3 Bf1 N1f2+ Kh2 Ra1 Bh3 Nc1 Qf4 Nd1 Kh1
4q3/bK2Q2P/PBPNr1RR/pp3n2/3B1NQ1/r1nR1BQ1/p1k1b1b1/2q5 w - - 0 1 illegal: Other
2qBrN1Q/4N1pb/4pNq1/4BR2/Knr5/P1R3p1/Pb2nQ1P/1kqQ1B2 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 h5 g4 f5 exf5 hxg4 Bc4 a4 Bf1 a3 bxa3 Ra7 Bg2 Ra6 Bf1 Ra8 f4 Kf7 d4 Kf6 Kd2 c5 Kc2 b5 Kb3 g3 d6 b4 d5 Rh4 d7 Nc6 d6 Nh6 Nc3 e6 Nge2 Ba6 Nd4 c4+ Ka4 b3 Be3 b2 Rc1 Qc8 d8Q+ Be7 d7 b1Q Qh8 Nb4 Nc6 Bd6 Bd4+ Be5 Ne7 Qd3 Nb1 c3 d8B c2 Nd2 Rg4 Ba1 Bb2 Rg1 Rb8 Rg2 Qe4 Rf2 Bd3 Rf3 Nf7 Rf2 Ne5 Rf3 Nec6 Rf2 Kf7 f6 Qg6 f5 Rc4 Ne4 Nd4 Rf3 Ne2 Rf4 Bd4 Bc3 Be3 Be5 Bd4 Rb1 c1Q Rb3 Bb2 Rc3 Qb7 Bb6 Rg8 Bd8 Qc8 Rf3 Ke8 f7+ Kd7 f6 Re8 Nf5 Kc6 f8Q Kd5 f7 Re7 Nf6+ Kc5 Qfg8 Re8 f8N Be4 Ne7 Bd3 Bb8 Kd4 Rf5 Ke3 Qf7 Kd4 Qe1 Ke3 Qf2+ Kd2 Be5 Be4 Qfg8 Kd1 Qh5 Kd2 Qgh8 Kd1 Rcf3 Kc2 Rc3+ Kb1 Qhf3 Ng1 Qd1 Ne2 Rff3 Qg4 Rf4 Bh7 Rf5 Qg6
2kq3N/5P1p/1rB1K2n/Q2P1n1b/3rRR2/2PB1q2/qR2pp2/1N2BQbQ w - - 0 1 illegal: No proof kernel
1B6/1K1bprk1/NPP2r1q/1Nb2Rn1/3pR1Rb/2n2Bq1/N4pPB/2Q2Q2 w - - 0 1 illegal: No proof kernel
QB1nqN2/bBqpnN1P/4QB2/2Pb1Np1/1K5r/Q2RPR2/1p1r2k1/q7 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 Ke7 a4 Ke6 h4 Kd5 c4+ Ke4 c6 f5 e6 g5 c7 b5 a5 b3 Kc3 f4 a6 f3 h6 f2 c5 b2 e7 Ra7 e8Q+ Be7 h7 Bb7 c8N Bd5 h5 Bb3 h6 Be6 Rh3 Qb6 Bg2+ Kf5 Rd3 Kg4 Bf4 f1Q e3+ Qe2 Nd2 b1Q Nd6 Qc6 Nf1 Bd5 Nf3 Qc7 Qa4 Ra8 a7 Qba2 Nh4 Nc6 Nf7 Bd6 Ng3 Nd8 Rf1 Ne7 Rf3 Qa1+ Kb4 Qeb2+ Qb3 Qe5 Ng6 Qe6 Bh1 Kh3 Qa3 Rb8 a8Q Rb6 Ka5 b4 Nf8 b3 Ka4 Ra6+ Kb4 b2 Be5 Kh2 Bf6 Bf4 Nf5 Rd6 Be5 Rg8 h8B Kg1 Bhf6 Rh8 Rh3 Kf2 Be4 Rh7 Rf3+ Kg2 Nh8 Qg8 Qf7 Qg6 Qe6 Qe8 Nf7 Bc4 Rb3 Rd2 Bb7 Bd5 Rd3 Qc6 Bc3 Bb8 Bce5 Ba7 Bb8 Qc7 Bc6 Rg7 Bb7 Rg6 h7 Rh6 Qc6 Rh5 Qe6 Rh4+
1bQ2N2/nPBr4/1nRN2Qq/3n1P1p/5Q1K/q3P1rB/3p3p/R2BNb1k w - - 0 1 illegal: No proof kernel
2QKR1rb/p6P/2b5/3NB1k1/Nq2rR2/1p1Bp3/1PQnRnP1/B2qn1Q1 w - - 0 1 illegal: Other
RN1n4/4bbrK/4Q1Nn/2Q2qbR/1r1pB1Bp/2bRP3/P1P2kp1/2B1N3 w - - 0 1 illegal: No proof kernel
1N5q/1NRp3k/np3Rr1/Q1r2n1K/1RNpP1Q1/3P1PQ1/2b5/bBb3Bb w - - 0 1 illegal: No proof kernel
BRQR4/B3k2K/1qb2p1p/3nb3/p1r1R1P1/3P1PQq/5N2/r1N1rQqB w - - 0 1 legal: proof: a4 c5 h4 b5 axb5 g5 hxg5 c4 d3 cxd3 Kd2 Qb6 Kc3 d2 Kd3 Qa5 Kc4 Qb6 Kc3 Qd8 Kd3 d5 c3 d4 Rh4 Na6 Qb3 d1R+ Ke4 d3 Kf3 d2 Rh1 Nb4 Ke3 Nd3 exd3 Qa5 Ke2 Qd8 Kf3 a5 Kf4 a4 g4 e6 f3 f6 c4 Ra7 c5 Bd7 g6 Be7 b6 Bf8 g7 Rc7 c6 Rc8 b7 Re1 b8Q d1Q c7 Re3 Nc3 Bb4 Ne4 Kf7 Bg2 Qe8 Ne2 Qg1 Qd1 Bc5 b4 Bc6 b5 e5+ Kf5 Bb7 b6 Ba8 b7 Qc6 Nf2 e4 Qf1 Bd4 Rh5 h6 Bh1 Ke7 Kg6 Qb6 Rd5 Be5 Rd8 Qh2 Bb2 Qh3 Nc1 Re1 Bd4 e3 Rb1 e2 Rb4 Rh7 Be3 Rd1 Re4 e1Q Bd4 Qe6 Ba7 Qb6 Rd6 Re8 c8Q Qee3 Rd8 Qed4 Nb3 Ra1 Nc1 Qe3 Qc3 Rh8 Qbc8 Qed4 b8R Bc6 Qd2 Qdc5 Qf4 Qe3 Qg3 Qe1 Qe2 Qg1 Qf1 Bd5 Qc7+ Ke6 Rc4 Bd4 Rd7 Rc8 Qd8 Bb2 Rd4 Rc4 Qc8 Bc6 Rf4 Ke5 Rd8 Ne7+ Kf7 Nd5 Kg6 Re8 Kh7 Bd7 Rd4+ Ke6 Rf4 Kf7 Rd4 Re1 Re4 Be5 g8B+ Ke7 Bf7 Nc7 Bd5 Bb5 Bb7 Bc6 Ba8 Nd5
k2qBb2/2B1rN2/1n2PQ1N/r1QNpBq1/np4n1/pr6/1P2P3/R3KR1R w - - 0 2 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 f5 Be6 fxe6 b4 Qc2 Qd7 Qd1 Qb5 axb5 Be7 Nh3 Bc5 Ng1 Bf8 g4 Kd8 d4 Kc8 b6 Kb7 d6 c5 d7 a5 d8R f5 d5 h5 d6 c4 d7 a4 g5 f4 g6 a3 g7 h3 Kf2 c3 Qd4 f3 Re8 h4 d8Q h2 Qg5 h3 Ke1 c2 Qf6 Nh6 g8B Ng4 Bf7 Nd7 Be3 c1N Nc3 Rh7 Qc5 Na2 Nd5 Ra5 Rd8 Nc3 Be8 Na4 Bf2 Ka6 b7 Ndb6 b8N+ Kb7 Nc6 Re7 Nd4 Ka7 Rd7+ Kb8 Nf5 Ka8 Be3 f2+ Kd2 Rh7 Nh6 Re7 Bg2 f1Q Be4 Qf2 Nf3 Qh4 Bf5 Qg5 Rhf1 h1Q Ke1 h2 Rc7 Qg8 Ng5 Qg1 Ngf7 h1R Qc2 Rh2 Bd7 Nc4 Bb6 Rf2 Kd1 Bg7 Re1 Qd8 Be8 Bf8 Rc5 Qh1 Bc7 Qh4 Rh1 Ncb6 Rc3 Qb8 Rf3 Qg5 Qc5 Qd8 Ke1 Rh2 Rf4 Rh3 Rff1 Rb3
2B4q/2pQQ2B/n1R1p2P/2Qnk1p1/K1Pb2P1/B2Rq3/Rq1NN2b/2r1b3 w - - 1 2 illegal: No proof kernel
4K3/pN1q1BR1/k1r2b1p/2QPb2R/P6P/NBNR1q1n/1p4br/r1B2Q2 w - - 1 2 legal: proof: f4 c5 g4 f5 b4 d5 bxc5 e5 e3 Nc6 e4 Nce7 fxe5 dxe4 Bd3 f4 Bf1 Nf5 gxf5 Qd6 Ba3 Qd7 Bc1 Qd8 Ke2 Kd7 c4 Kc6 d4 b5 a4 Kb7 c6+ Kb6 c5+ Ka6 f6 g5 e6 g4 c7 h6 e7 b4 e8B b3 f7 b2 c6 e3 Kd3 e2 Ke4 g3 Ke5 f3 d5 g2 Ra3 f2 Rd3 e1R+ Ne2 g1B Na3 Bd7 c8N Bh3 c7 Ne7 Kf6 Bg2 Nd6 Rc8 Nc3 Qd7 Nb7 Ng6 h4 Bb4 f8R Bh2 Bf7 Nf4 Rg1 Be7+ Kg7 Re8 c8Q Nh3 Qc5 Bf6+ Kg6 R1e2 Rg8 Bd6 Rg7 Bde5 Qe1 Rd2 Be2 f1Q Bd1 Qf2 Qf1 Qf3 Bb3 Rhf8 Nc4 Re6 Na3 Bh1 Rg3 Rh2 Rg5 Bg2 Rh5 Rc8 Kh7 Rcc6 Kg8 Bc7 Kf8 Re1 Na5 Bce5 Nb7 Qc7 Ke8 Qd6 Bf4 Ra1 Bc1 Qd7+
1k1N1rr1/5RB1/3p2p1/1Bb2nPP/PR1b2nN/3RN2r/b1K3p1/B1Q1Q2n w - - 0 1 illegal: No proof kernel
b3b3/p3B3/8/PQnBp2K/QR1nrBP1/P1kN1b2/RbNp2qN/4b1R1 w - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 dxc5 g5 hxg5 Na6 a3 Rb8 b3 b5 Nf3 Rb6 Ng1 Rd6 Rh4 Rd4 Rh1 Ra4 bxa4 Bg7 Rh5 Bh6 Rh1 Bf8 Ke2 Kf7 f4 Ke6 c4 h5 g6 d5 c6 b4 f5+ Ke5 c5 d4 g7 e6 c7 h4 a5 e3 Kf3 e2 Kg4 e1B f6 d3 c6 Kd4 f7 h3 Ne2+ Kc4 Bf4 b3 Rg1 h2 Nd4 h1B Nc2 b2 Ra2 Nh6+ Kh5 e5 g8Q Bf2 g4 Bb7 c8R Be1 c7 Ba8 Bg2 Qd5 Rb8 Bc5 f8B Bd4 c8N Nc5 Nd2+ Kc3 Nf3 b1B Be7 d2 Qe8 Rf8 Rb4 Nf5 Nh2 Rf6 Be4 Bf3 Nb6 Qb7 Nd7 Rb6 Rbb2 Rb4 Bd5 Rc4 Rb4 Qc6 Na1 Bc2 Qb8 Ba4 Qb6 Bb5 Qa4 Qb7 Nc2 Bc6 Nf8 Be8+ Ng6 Qc6 Bg8 Qe4 Bd5 Qe2 Qbb5 Qg2 Rh1 Kd3 Rf1 Bb2 Rg1 Kc3 Bfg5 Bec6 Nf4 Re4 Nd3 Nd4 Bf4 Be8+
qn2Qb2/1N1b1bQp/1Q1N1R1P/1p6/1K1B1Bn1/1P4RP/1nk1Nrp1/4B1b1 w - - 0 2 illegal: No extended proof kernel
2B2Q2/K1RQ1NB1/1r1q4/Npp2NPn/k7/1bQ1br1p/r1rRP2P/1B3b2 w - - 0 1 legal: proof: d4 g5 f4 e5 dxe5 b5 fxg5 a6 c4 Nc6 c5 Na5 b3 Nc4 b4 Nb6 cxb6 a5 Ba3 axb4 Bb2 Nf6 Bc1 Ng8 Kd2 d5 Ke3 Kd7 Kd4 Kc6 g4 h5 a4 f5 a5 h4 a6 f4 b7 b3 b8Q f3 e6 b2 e7 f2 e8N Be7 a7 Bd7 g6 Nf6 g5 Be6 g7 Rg8 Qc8 Bf5 Ra2 Nh7 Bh3 f1B Nf3 Be6 Ne5+ Kb6 Na3 Ka5 Nf7 b1R Rd2 Rf8 g8Q Nf6 Bb2 Nh5 Ned6 Rc1 Nf5 Rc2 Nc4+ Ka4 Na5 Qd6 Bc3 Rb8 a8B Rb6 Qc1 c6 Qd7 Bd8 Bg4 h3 Bb7 Bc7 Bc8 Bb8 Bf3 Ba7 Be4 Ra2 Bb1 Rc2 Kd3 d4 Ba1 Ra2 Qc3 Bb3 Ke4 d3 Qgh8 Qc7 Kd4 Qg3 Kc5 Qf4 Rc2 d2 Qg8 d1R Rd2 Rc1 Qh8 Re8 Qf8 Rcc2 Rg1 Re3 Rh1 Bg2 Rc1 Rf3 Qc4+ Ka3 Bg7 Bf1 Qc3 Ka4 N7d6 Bb8 Ndb7 Ra6 Nbd6 Rcb2 Qe5 Bc7 Rc3 Rc2 Nf7 Qg3 Qe3 Bf4 Qed3 Ra7 Kb6 Be3+ Rc5 Qd6 Qc3 Rb7+ Ka6 Rb6+ Ka7 Qd3 Rd5 Qd4 Rd6 c5 Rc6 Qd3 Rc7 Qd6
1qNr3B/1b3Qp1/2pP4/5pnb/1kBR3r/5PR1/K1Pr1BNR/Qr3b1Q w - - 0 2 legal: proof: d4 a5 g4 h5 gxh5 c6 b4 axb4 d5 e6 d6 Be7 e3 Bg5 e4 Be3 Be2 Bb6 Bf1 Bc7 dxc7 Qe7 Be2 Qh4 Bf1 Qd8 Bh6 d5 Bh3 d4 Bc1 Nd7 Bg2 Nb6 Bf1 Nd5 exd5 Ra6 Ne2 Ra3 Ng1 Ra8 Kd2 Kd7 h4 Kd6 a4 Kc5 d6 b5 a5 f5 a6 d3 h6 b3 Kc3 b4+ Kb2 d2 f3 e5 a7 e4 h7 e3 h5 e2 h6 e1R Nh3 Qe8 Rh2 Qe7 Nc3 Qe4 Nf4 Nf6 Nb5 Bb7 c8Q Re2 Qg8 Qe8 Ng2 Ne4 Ra4 Ng5 Qf7 Rd8 a8Q Qf8 Qe1 d1B Na7 Rd2 Bc4 Be2 Qh1 Bf1 Nc8 Qg8 Kb1 b2 Ka2 b1R Bb2 Qe8 Be5 Qf8 Bg3 Qg8 Be1 Qf8 Rh3 Qe8 Rg3 b3+ Ka3 b2 Ka2 Qd7 Qa6 Qc7 Rb4 Qb8 Qa8 Rhe8 h8R Re4 h7 Rh4 Ra4 Kd4 Bf2+ Kc3 Ra5 Kb4 Rd5 Re1 Rd4 b1B+ Kb2 Ba2 Qa6 Bb3 Qa1 Ba4 Ka2 Rb1 Re8 Bb5 h8B Ba4 Re2 Bb5 Ne3 Bh3 Ng2 Bg4 Ree4 Bh5 Reg4 B7a6 Rh3 Bb7 Rgg3 B5a6 Rh2 Kc5 Bb3 Bf1 Bc4 Kb4
NN1qb3/2P1ppkb/R3Q3/1Q2P2r/p1r1bP1B/NB6/nR6/Qb2KRr1 w - - 1 2 legal: proof: d4 c5 a4 cxd4 g3 b5 axb5 h5 Ra5 g6 Na3 h4 Nb1 h3 Ra1 Bh6 Nc3 g5 Be3 g4 Nb1 Bg5 Bf4 Bh4 Bc1 Na6 Na3 Nc5 Nb1 Ne4 gxh4 g3 Ra4 g2 Ra1 Ng3 hxg3 Rh5 Nf3 Rh7 Ng1 Rh8 c4 Kf8 b4 d5 e4 a5 h5 h2 c5 d3 b6 d4 e5 Rh6 b5 Rh7 h6 Ra6 c6 Rh8 b7 Rb6 b8Q Ra6 c7 Bd7 g4 Rc6 g5 Bc8 g6 Qd7 g7+ Ke8 h7 Rc5 b6 Nf6 b7 Rc4 Nh3 g1R Bg5 Qd8 Bh4 Bd7 Nf4 Ne4 Nd5 Nc3 f4 Na2 Na3 a4 Rb1 Bc6 Nb6 Bb5 Na8 d2+ Ke2 Bc6 Rb2 d3+ Kf2 Be4 Qa1 d1B Ke1 Bc2 Qc8 Bb1 b8N Bc6 Qe6 d2+ Kd1 Rf8 g8R Bce4 Rg3 Rh8 Rg6 Kf8 Ke2 d1B+ Ke1 Bdc2 Rh6 Rhg8 h8Q Bcd3 Qhf6 R8g5 Qb6 Bc6 Qb5 Be8 Qe6 Bh7 Rg6 Rh5 Rf6 Rg3 Bg2 Rgg5 Rf1 h1B Bd5 Rg1 Rh6 Kg7 Rf6 Rc5 Bb3 Bg2 Qec4 Bh1 Ra6 Bh1e4 Qe6 Rc4
1b1Q4/Q3RRP1/1K1N3Q/1p6/1bBqbP2/1qR1p2p/1r2Pk1N/n1B1Nn1b w - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 b5 b4 a5 h3 axb4 gxf5 g5 h4 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bd7 Nf3 Be6 Ng1 Bc8 a4 Kd7 d4 Kd6 Kd2 h5 Kd3 c5 f4 e5 g6 c4+ Ke3 b3 a5 g3 a6 h4 g7 c3 a7 e4 a8Q c2 f6 h3 f7 g2 Na3 b2 Qa7 b1B Nf3 Bb7 Nh2 Nd7 Qd3 Be7 f8R Ngf6 Rf7 Nc5 Qc4 Qb6 Qca4 Rb8 Q4a6 Rd8 Ra2 Nh5 Rg1 Kd7 d6 Ke6 d7 Ng3 d5+ Kd6 Kd4 Nb3+ Kc3 Kc5 d6 Rc8 d8N Na1 d7 Ba8 Rh1 g1B Bg2 Nf1 Bf3 Bc6 Nb7+ Kd5 d8Q+ Bd6 Qc7 Bgc5 Qd8 Rc7 Re7 Rd7 Bh5 Bb8 Nd6 Bb7 Rg1 Ba8 Rg3 Bb4+ Kb2 Kd4 Bf7 Rc7 Bb3 Rc3 Bc4 Rd3 Rf7 Rd2 Rc3 Qc5 Ne8+ Bd5 Qh6 Qb6 Nd6 Ba8 Bd3 Ke3 Bc4+ Kf2 Re7 e3 Rf7 Nb3 Re7 Qd4 Ra1 Bh1 Rf7 Nc5 Re7 Nd3+ Kb3 Ne1 Rf7 Bc7 Qb7 Bb8 Bb2 c1Q Nc2 Qd1 Ra7 Ba5 Bc1 Bb6 Kb4 Bc5+ Ka5 Ba3 Nb4 Rb2 Nc2 Bb4+ Ka6 Nf3 Qbb6 N3d2 Rae7 Nb3 Ne1 Na1 Qbc7 Bbe4 Qa7 Qf6 Kb6 Qb3 Qhh8 Qe5 Qh6 Qd4+
B2K3R/Q1pq4/QbpQ3P/P4rnB/1rP3qN/3R3n/2N1n2p/1RB2nk1 w - - 0 1 illegal: No proof kernel
1q2r1qN/1q1k1B2/RpqN3n/2P1Q3/1Pb1p1N1/4PQ1r/n2B1p1R/K3B1Q1 w - - 1 2 legal: proof: d4 g5 g4 c5 f4 cxd4 fxg5 e6 h4 b6 a4 Nc6 g6 Qc7 h5 Bd6 a5 Kd8 g5 Bc5 a6 Qb7 axb7 Bf8 h6 Bg7 hxg7 Nb8 Rh2 Ke7 Rh1 Ke8 Kd2 f5 c4 d5 Kc2 h5 b3 a5 Kb2 f4 e3 e5 c5 d3 Ra2 a4 Ra1 d2 Bb5+ Nc6 b8B h4 Qg4 d1Q Nh3 d4 Qf3 d3 Bc4 d2 Nc3 Kd7 Bf7 Nb4 Ne4 Na2 b4 Qg1 Rh2 d1Q Nd6 Nh6 g8N Ba6 g7 Bc4 g6 Qd5 Ne7 Qc6 Nf2 h3 g8Q a3+ Kb1 e4 g7 Qg6 Bc7 Re8 Bd2 Qh7 Qf8 Qg8 Ng4 Rh7 Qg3 f3 Qe5 f2 Ng6 Qb7 Nh8 Qb8 Bd8 Qb7 Bf6 Qb8 Rg2 h2 Be1 h1Q Rh2 Nc1 Bd2 Qd1 Be1 Qd5 Ra2 Qdb7 Ka1 Nf5 Bd2 Rh3 Be1 Nh6 Bd2 Qh7 g8Q Qg6 Qg5 Qh7 Bfc3 Qc6 Qg8g7 Qg8 Q7e5 Qbb7 Be1 Qb8 Bcd2 Qcb7 Rc2 a2 Rc3 Qc6 Ra3 Qcb7 Qfg7 Qc6 Q7f6 Qbb7 Qf3 Qb8 Kb2 Qcb7 Ra6 a1Q+ Kc2 Qa3 Kb1 Na2 Ka1 Qa5 Qh4 Qa3 Qhg3 Qa4 Qg1 Qac6
1B1k3B/1R3qpQ/2B2bq1/2q4b/N2r2P1/2QR1QP1/Pqp1pN1n/r2NK3 w - - 0 1 illegal: No proof kernel
rr3QRq/N5R1/2RNPQKp/1rB1q3/B2Pp3/2B4r/b2p3P/N1knb3 w - - 0 1 illegal: No proof kernel
4rqqb/P1N4r/pp2bQ1R/1nRrB1p1/1R1B1PQ1/1N1k4/QPr3B1/5K2 w - - 0 1 illegal: No proof kernel
4nr2/N1BB1bpp/2p1rR1P/1Q6/1P4Q1/5nRP/kr2RbK1/1rr2NNQ w - - 0 1 legal: proof: c4 b5 h4 e5 a4 d5 cxd5 Qd6 axb5 Qa3 f4 Qh3 gxh3 exf4 Kf2 Kd7 d4 Kd6 b4 f5 e4 a5 e5+ Kd7 e6+ Kd6 e7 f3 e8R a4 h5 a3 h6 a2 b6 f4 b7 Nf6 Bb5 Ra6 Nd2 Nc6 b8Q Be6 Nf1 Ne5 Bd7 Bf7 Qb5 Be7 Rh2 Rf8 Rg2 Bd8 Re7 Ne8 Rg3 Rb6 Rb1 a1R Rb2 Rc6 Re2 Rb1 Be3 Rb2 Qb1 Bg8 Rf7 Bh4 Rf5 Bf7 Rf6+ Ke7 Qg6 Re6 Qg4 Kd6 Nh2 Rc2 Kf1 f2 Kg2 Rb2 Nf1 Nf3 Bc1 Ke7 d6+ Kd8 Nh2 f1R d5 Rd1 Be3 Rc1 Bb6 Rcb1 Nf1 Rc1 Bc8 Rcb1 d7 Ke7 d8N Kd6 Nc6 Rc1 Na7 c6 Rc2 Ke5 Bc7+ Kd4 Rf2 Kc3 d6 Kb3 d7 Ka2 d8Q Rb1 Re2 Rc1 Bd7 Rb1 Kh1 Rc1 Rgg2 Bf2 Rg3 Nd6 Qdb8 Rb1 Ne3 Nd2 Ba5 f3 Rg2 Ne8 Qh2 Be1 Rg3 f2 Bc7 f1R Kg2 Bf2 Qh1 Rfc1 Nf1 Nf3
bn6/N2p3B/1rrprRBP/k2P2KN/3RP3/1pRQ4/1Q1bn1b1/B2rN3 w - - 0 1 illegal: No proof kernel
QN1b1rq1/4kb1B/Pp3ppp/NQn5/1R1N2BR/1Q2P2n/6PK/1rn1B3 w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 e5 fxe5 g6 h4 Nc6 h5 Qf6 h6 Qg7 hxg7 Nb8 Kf2 c5 Kg3 c4 a4 c3 d4 b6 e3 h6 a5 f6 d6 b3 d7+ Kd8 e6 b2 e7+ Kc7 d8Q+ Kc6 e8Q+ Bd7 a6 Kd6 d5 c2 Na3 b1Q Nf3 Ne7 g8B Nc8 Bd2 c1N Nd4 Qa2 Rb1 Qa1 Rh4 Ne7 Be2 Qa2 Be1 Rh7 Qc8 Be6 Bg4 Bf7 Rb4 Nd7 Qb3 Nc5 Qb5 Rh8 Qce8 Rc8 Kh2 Rc7 Qa8 Rc6 Ne6 Kd7 d6 Nd5 Nc4 Nf4 Na5 Nh3 Bh7 Be7 Qb2 Rb8 Qb3 Bd8 Nd4+ Ke8 d7+ Ke7 Qc3 Be8 Qcd3 Qg8 Qb3 Rd6 Q3d3 Bf7 Qb3 Bc7 d8N Rc8 N8e6 Bd8 Nf8 Rb8 Nd7 Rd5 Ne6 Rd2 Nd4 Rb2 Bf2 Rc8 Nb8 Rb1 Be1 Bc7+ Kh1 Rf8 Nc4 Ng1 Na5 Bd8 Kh2 Nh3
1bB4K/4pq1Q/pkBPNN2/2N3Qp/1p6/P3n3/Bn3PRR/1br1q1rR w - - 0 1 legal: proof: e4 c5 h4 d5 exd5 g5 hxg5 f6 b4 Nh6 bxc5 Ng8 Bb2 Kf7 Bc3 Ke8 Be5 fxe5 Ke2 Kd7 Ke3 Kc7 Ke4 h5 g4 b5 c4 a6 d4 b4 c6 Bb7 Kf5 e4 Kg6 e3 d6+ Kb6 d5 e2 d7 e1Q c5+ Ka5 a3 Qd2 d6 Qc8 d8N Ra7 c7 Qc2+ Qd3 Nh6 c6 Rh7 Nd2 Qb1 Ne2 Kb6 Rh2 Qc2 Nc1 Qb3 Ne4 Qb2 Nf6 Qb1 Bg2 Rh8 Nb3 Nd7 Ne6 Qc2 Nbc5 Qa2 Rah1 Rg8+ Kh7 Rg7+ Kh8 Nf5 g6 Ne3 g5 Ne5 Qd2 Qd7 c8B N5c4 c7 Nb2 Bc6 Qe8 B8d7 Qa1 c8B Qe1 Bd5 Ba8 Ba2 Be4 Bc6 Bb1 Qc2 Rf7 g7 Rc7 g8R Bh6 g6 Rg7 Qd3 Qf7 Qf5 Bf4 Qg4 Be5 Qg5 Bd4 Qh6 Qf1 Nce4 Qg1 Bcd5 Rc1 Qh7 Ka5 Bc6 Ba7 N4c5 Qe8 Ncd7 Bb8 Ndc5 Rf7 g7 Qe1 Rf8 Kb6 g8Q Rg7 Rf7 Rg1 Rg7 Nd5 Rgg2 Qf7 Qg5 Ne3
3n1K2/1pRq2B1/1rN2nN1/1r1p1rk1/BP2P3/NB4pp/1Rb1P1Q1/n1R2Q2 w - - 0 1 illegal: No proof kernel
1bb1B3/2p5/kNQB4/N1qR2pp/2rP4/NKPR1P1n/2p2B2/R1rQrb2 w - - 0 1 illegal: No proof kernel
1r2bRq1/3N4/QBp3Qp/b1P1p2P/R1q2N2/N2P1pq1/KB2n2k/3r2RB w - - 0 2 illegal: No possible last move, all moves rejected
R3r2n/n1QN1p1Q/q2N1P2/pBRN3K/5RpB/rp2P3/Pk5q/1b4rQ w - - 0 2 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 c3 b5 Bh6 b4 Qc1 b3 Bf4 Bd6 Qd1 Bc7 Be3 Ba5 Bc1 Bb4 cxb4 Qc7 Bh6 Qb6 Bc1 Qd8 h4 Ke7 f4 Ke6 Kf2 d5 Kg3 g5 f5+ Ke7 e6 Kf6 h5 Ke5 f6 a5 c6 d4 b5 d3 h6 Kd4 b6 d2 h7 Na6 b7 Nb8 e7 Qd5 e8R Na6 b8Q Qf5 c7 Qc2 Nc3 Ne7 Nd5 Ng6 Rh4 Bf5 c8N Nc7 Nd6 Nb5 Qc7 Na7 Qe1 Rg8 h8Q d1Q Qh7 Nh8 Bf4 Qcd2 Rc1 Bb1 Rc5 Rb8 Rf8 Rb4 Ra8 Q2c2 Bd2 Re8 Bc1 Ra4 Be3+ Ke5 Bf2 Qdd3+ e3 Ra3 Qd1 Qa6 Bb5 Qb2 Nf3+ Ke6 Kg2 g3 Kh3 g2 Kg4 g1R+ Kh5 Qe2 Rf4 g4 Bh4 Qg2 Nd2 Qh2 Qf3 Ke5 N2c4+ Ke6 Ncb6 Ke5 Qh1 Ke6 Rf3 Ke5 Nf5+ Ke4 Nd7 Re7 Ba4 Kd3 Rf4 Re8 Bb5+ Kd2 Nd6 Kd1 Bc4 Kc1 Bb5+ Kb2
n1qrQBb1/3pQNR1/3PnP2/3pR2B/1Q2pk2/1p2r1NK/1Rn2q1P/4N3 w - - 0 1 illegal: No proof kernel
1R2r2B/3Kp3/2p2npb/5N1P/3pRRqN/1qrPQ3/1bP2QQr/k1N2B2 w - - 0 2 legal: proof: a4 f5 e4 fxe4 h4 b5 axb5 Nc6 h5 Nb8 Ra6 Nc6 Ra1 g6 h6 Nd4 Nc3 Ne6 Nb1 Ng7 hxg7 Bb7 Qh5 Ba6 Qd1 Bc8 Ra5 h5 Nc3 Bb7 Nb1 Bd5 Ra1 h4 Na3 Be6 Nb1 Bg4 g3 Bh5 g4 Nf6 gxh5 Ng8 Ke2 Kf7 Ke3 Ke6 Kd4 d5 Kc5 Ke5 Kc6 Kd4 f4 a5 b4 e3 d3 h3 f5 a4 b6 e2 b5 e1B b7 a3 b8R h2 f6 a2 f7 Ra3 b6 Rh7 b7 Qc8 Qe2 Bd2 Bb2+ Bc3 Qg2 Qd8 Nd2 Rh6 Re1 Nf6 g8N Rh8 Nh6 a1Q Re6 Bg7 f8Q Qc8 Re1 Qb1 Ne2+ Ke3 Qf7 Qg4 Nf3 Re8 Nh4 Kd2 N6f5 Bh6 Ba1 Bb2 Nc1+ Kc3 Re4 Qa2 Rg1 h1R Qe6 Ng8 Kd7 c6 Rf4 Rh2 Qe3 Qb3 Qgf2 Qf3 Rgg4 Qg3 Re4 Qg2 Rgf4 Qg3 Rd8 Qg4 b8Q Nf6+ Kc7 Ra8 Qg2 Ra4 Qba7 Rc4 Qef2 Kb4 Qae3 Ka3 Ne2 Ka2 Rb8 Ba3 Bd4 Bb2 Nc1+ Ka1 Be5 Rc3 Bd4 Nh7 Bh8 d4 Kd7 Nf6+
5r2/1QNpQPq1/n1NB1p2/3RQ1P1/4p3/b2b2pk/2rqPB2/1b1BR1KN w - - 0 1 illegal: No proof kernel
1kb4q/rp1P1B1n/5K1N/1PR2p1R/2P2N1r/2p1r3/1Q1pBRQ1/2Bq1n1Q w - - 0 1 illegal: No possible last move
q2Q4/Qpnq1pb1/p3BPkr/1q3RnN/N6K/4PR2/PN2r1p1/B1R3Q1 w - - 1 2 legal: proof: d4 c5 c4 e5 dxe5 d5 g4 h5 b4 hxg4 bxc5 d4 Na3 Be6 Nb1 Bd5 cxd5 Qb6 Bf4 Qd6 Bc1 Qd8 f4 g5 Kf2 d3 Kg3 d2 h4 a6 c6 Rh5 e3 Rh7 c7 Ne7 c8N Rh5 e6 Qd7 f5 Ng6 d6 Qe7 d7+ Kd8 f6 Nf4 Rh3 Nc6 Na3 Rh6 h5 Ne5 Ne2 Qb4 e7+ Kc7 e8R Nf3 Nc4 Ne6 Nb2 Qb5 Nf4 Bg7 Nb6 Kd6 d8Q+ Ke5 N6a4 Kf5 Bc4 Rc8 Qg1 d1Q Bd5 Nc7 Be6+ Ke4 Rg8 Qdd7 Bd2 Ke5 Rc1 Ke4 Rh8 Ke5 Bc3+ Ke4 Kg2 g3 Rg8 g4 Rh8 Rg6 h6 Ng5 h7 Rh6 Re8 Bh8 Nh5 Bg7 Bd5+ Kf5 h8Q Kg6 Re5 Qb4 Rf5 Qbb5 Qe7 Rg8 Qc5 Rd8 Qa7 Rc8 Kh1 g2+ Kh2 Rg8 Kg3 Rd8 Qh2 g1Q+ Kh4 g3 Be6 g2 Qe8 Qgd1 Qg1 Qc8 Qe7 Qa8 Rhf3 Rd2 Qd8 Re2 Nd3 Ne8 Ba1 Nc7 Ndb2 Qdd7
1BB2n2/2p1R2P/3P2p1/QrPb1R2/QrRb1BK1/p3b3/p1n2k2/Qn3NN1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 e4 d5 a4 bxa4 exd5 e4 Qf3 Qf6 Qd1 Qe5 fxe5 Bg4 Nf3 Bf5 Ng1 Bc8 Ke2 Kd7 h4 a5 c4 f5 b4 g6 d4 f4 c5 a3 e6+ Ke7 d6+ Kf6 d7 Kf5 d8Q Kg4 b5 Kg3 b6 e3 d5 a4 e7 a2 e8R a3 h6 Nf6 d6 Na6 b7 Nh7 b8B Bf5 h5 Be6 Re7 Nb4 Rh4 Ra4 Nd2 Bg7 Bh3 Nf8 h7 Bd4 h6 Bd5 Bc8 Nc2 Nf1+ Kg2 Qd2 Rb4 Qd7 Rg8 h8Q f3+ Kd3+ f2 Ke2 Rb5 h7 Rb4 Qa4 Rb5 Nh2 f1N Qda5 Nd2 Nf1 Nb1 Rh5 Rb4 Rf5 Rb5 Kd3 e2 Bf4 e1B Ke2 Bef2 Qg7 Nd2 Rc1 Nb1 Qe5 Bde3 Qa1 Bd4 Re1 Bfe3 Re4 Kh1 Kf3 Rb4 Kg4 Kg2 Re7 Kf2 Rc1 Rg7 Kh4 Rf7 Kg4 Rb5 Rd1 Rf6 Rd3 Re6 Rc3 Re4 Rc4 Bf6 Rc3 Reb4 Rc4 Bfd4
RB1k2b1/p1b1pKN1/1nr5/p1B1Qb2/2PPrp2/PB1rN2Q/2R1nQ2/7N w - - 0 1 illegal: No proof kernel
r1Q2nn1/1np1ppQ1/bq3P2/NRBBNP2/k1N1R3/2b3pP/3n3K/2BR4 w - - 0 1 legal: proof: c4 b5 f4 a5 g4 h5 e4 hxg4 a4 d5 cxd5 Bd7 axb5 Ra7 f5 Ra6 e5 Rf6 exf6 Bc8 Kf2 Kd7 Kg2 g5 b4 a4 d4 g3 d6 a3 h3 a2 b6 Kc6 d5+ Kd7 b7 Qe8 b5 Bg7 b6 Qd8 Nd2 Na6 b8B Bh6 b7 Nb4 Qg4 Nc2 Nc4 Nd4 Nf3 Ne6 Ba7 Nf8 b8R Ba6 Rb5 Qb8 Bc5 Qb6 Kg1 g2 Kh2 g1N Bg2 Qb7 Rab1 a1N R1b4 Nb3 Ra4 Na5 Nfe5+ Kc8 Bf3 Qb6 d7+ Kb7 d8Q Ka7 d6 Nb7 Bd5 Nf3+ Kg3 Nd2 d7 Ne4+ Kh2 Nd2 Qh4 g4 Rd1 Be3 Qh7 Bd4 Qg7 Bc3 Qc8 Nh6 d8N Ne6 Bd6 Qd4 Qd7 Rf8 Bb4 Ng8 Nd6 Re8 Bba3 Nf8 Rc4 Qc5 Re4 Qc6 Ndc4 Qd6 Ne6 Ra8 Nc5 Qc6 Nb3 Qe6 Rc5 Qd6 Nba5 Qc6 Nb2 Kb6 Qc8 Qd6 Rc6+ Kb5 Bc5 Qe6 Nbc4 Ka4 Rb6 Qd6 Rb3 Qb6 Rb5 g3+
nNr2Q2/Q5B1/p2n2k1/P1KRq1B1/1N1RrpP1/3Qpn1B/1b2p1RP/3n4 w - - 0 1 legal: proof: g4 c5 e4 h5 b4 d5 bxc5 dxe4 f3 g5 gxh5 g4 Bc4 g3 Bf1 Bg4 fxg4 Qa5 Bd3 Qc7 Bf1 Qd8 Ke2 b5 Ke3 e5 a4 f5 d4 Kf7 c4 a6 c6 g2 d5 b4 c5 b3 d6 b2 h6 Nf6 a5 Rh7 c7 Ng8 c8Q Be7 d7 Nf6 c6 Qh8 d8R Ne8 c7 Qg7 Qd3 Qf8 Ra2 Bf6 Qb7 Bh8 c8Q+ Kg6 Rd4 Re7 h7 Qg7 Nf3 g1N Qa7 Nd6 Na3 b1N Nc2 Nc3 Bh3 Nd7 Qf8 Rc8 Nb4 Nb6 Rg2 Na8 Rd5 Ree8 Nd4 Nf3 Ndc6 Re6 Nb8 Nd1+ Ke2 Ree8 Bg5 e3 Re1 e4 Rf1 Nf2 Rd1 Qe5 Rd4 Bf6 h8B f4 Bg7 Re7 Rc1 Nd1 Rc5 Re6 Rcd5 Nh4 Ke1 e2 Kd2 Ree8 Qc4 e3+ Kd3 Nf2+ Kc3 Nd1+ Kb3 Nf3 Qd3+ Qf5 Na2 Re4 Kb4 Nc7 Kc5 Na8+ Nc6 Be5 Nb4 Qf6 Rc4 Bb2 Rcd4 Re8 Nb8 Qe5 Be7 Rd8 Bg5 Rc8+
2b1R1rb/4QN2/Pn4R1/1kp2Bpp/pn1BQ2N/5KP1/1b1b1P1Q/1Nq2R2 w - - 0 1 illegal: No proof kernel
1n5k/BK5r/Q2n1pQp/N2pPP2/r2Q3r/B1p1q1NP/N4b1R/R3r2B w - - 0 2 legal: proof: c4 d5 cxd5 b5 a4 e6 axb5 Qd7 d4 Qe7 d6 Qd8 g4 f6 d5 exd5 g5 Be6 g6 Bf7 gxf7+ Kd7 Kd2 Ke6 Ke3 a5 Kd4 g5 Kc5 c6 b4 h6 f4 a4 e4 a3 b6 a2 h3 g4 f5+ Ke5 b7 g3 b5 g2 b6 Rh7 Ne2 g1R Bg2 Be7 f8Q Qe8 Qf7 Bd8 d7 Ra4 Nbc3 Ne7 Ng3 Ng6 Ba3 Re1 Rh2 Nh8 Qg6 Nf7 Bh1 Bc7 d8N Rb4 Rc1 a1R Na2 Ra4 Qe2 Rb1 Qe3 Rbb4 Qd4+ Kf4 Ra1 Qe6 Nf1 Qe8 Qc4 Nd7+ Kd4 Qe6 b8B c5+ Kd3 Ke5 b7 Qe8 Nc6+ Kd6 Na5 Ke7 Ng3 Kf8 Ba7 Bb6 Qa6 c4+ Kc3 Bg1 b8Q Bf2 Qf4 Nb8 Qe3 Qe6 Kd4 c3+ Kc5 Rc4+ Kb5+ Qe7 Kb6 Rd4 Qh5 Kg8 Qg6+ Kh8 e5 Qc5+ Kb7 Rh4 Qd2 Qe3 Qd4 Nd6+
1N1B3Q/Pk3pp1/r2pr2Q/3R1rrn/2q1BPPK/5R2/2pn2BN/2QRb3 w - - 1 2 legal: proof: c4 a5 d4 b5 Qc2 e5 Qxh7 b4 dxe5 Ba6 b3 Bb5 cxb5 a4 Qf5 axb3 Qg6 Bd6 Qh7 Bf8 g4 c5 a4 d6 h4 Kd7 e4 Kc8 e6 b2 a5 b3 e5 c4 h5 c3 e7 c2 e8R Nd7 h6 Kb7 a6+ Kb8 e6 Qc8 b6 Qd8 a7+ Kc8 e7 Nb8 b7+ Kc7 Nd2 b1R Nc4 b2 Bg2 Nf6 Ra5 Nbd7 Ne5 Ra1 Rd5 b1R Ngf3 Nb8 Nc6 Rb5 Nh2 Na6 Nb8 Ra2 Bg5 Ne4 f4 Ng3 Kf2 Qc8 Rhd1 Nc5 Qg6 Nb3 h7 Ra6 Qh6 Nd2 Bf6 Rg8 h8Q Kb6 Bh4 Qc4 Rc8 Rba5 e8B Be7 Bc6 Re8 Bf6 Bd8 Bg5 Bc7 Bd8 Re6 Be4 Rc5 Kg2 Re5 Kh3 Rg5 Kh4 Rb5 Rd3 Rbf5 Rf3 Ka5 Bcd5 Bb6 Rc7 Bf2 Re7+ Kb5 Re5 Be1 Nd7 Ra1 b8Q+ Ka6 Qb2 Rb8 Qc1 Ra4 Bc7 Re8 Bd8 Re6 Bc6 Ra1 Rd5 Ra2 Bb5+ Kb7 Nb8 Ra3 Bd7 Ra6 Bb5 Qa4 Bf1 Qc4 Bg2 Nh5+
b3BKN1/1QN1pbp1/7B/nN2b1p1/3pP3/2R1Rnq1/r1P1PQbk/4QR2 w - - 0 1 illegal: No proof kernel forced: wxDB
BR1B1Qb1/1N3Pr1/k2bb1nQ/n2P4/B1bQ1pp1/Np1R3p/6rP/4K2N w - - 0 1 illegal: No proof kernel
2QQn1R1/r1p1N1p1/2N3N1/1nQ1r3/1p2pRq1/2P2PB1/K3PBnr/n4k1B w - - 0 1 illegal: No proof kernel
N2N2Q1/3bBpR1/QP1p2R1/2r2b1N/1nn1K3/Pqrp1P2/B1p1k2p/6QR w - - 0 1 legal: proof: d4 a5 h4 b5 b4 g5 hxg5 e5 c3 exd4 bxa5 b4 Qd2 b3 Qd1 Bb4 cxb4 Bb7 Rh3 Ba6 Rh1 Bc8 Kd2 Ke7 Kd3 Ke6 e4 Ke5 g4 h5 a6 c5 a7 d6 g6 h4 b5 h3 a3 b2 f3 h2 b6 Qd7 g5 Qc6 g7 Qb7 g6 Nf6 g8Q Bf5 g7 Be6 Nh3 Nd5 Nd2 Ne3 Nb3 Rh5 Nf4 Rh8 Nh5 Qe7 Na5 Bh3 Nb7 Nc6 Nd8 Rc8 a8N Nc4 Bg5 Qe6 Be7 Bf5 Rc1 b1B+ Rc2 Ba2 Rg2 Rc7 Rg6 Nb4+ Ke2 Bb1 Bh3 Bc2 Qg1 d3+ Kf2 Kd4 e5 Qd5 e6 Ba4 Kg3+ Kc3 Kf4 Kd2 Bg4 Ne3 Bh3 Qb3 Bg4 c4 Bh3 Bg4 Ke4 c3 Qe8 c2 g8Q Ke2 Qb5 Rc8 Qa6 Rh7 Rg7 Rc7 Bg5 Kd2 e7 Qb2 e8R Ke2 Re6 Bd7 Be7 Rc3 Reg6 Bge6 Nf6 Rh5 Bg4 Rhc5 Nh5 Qb1 Bf5 Qa2 Kd4 Qb1 Be4 Bf5 Bd5 Qb2 Bb3 Nc4 Ba2 Bh3 Ke4 Qb3 Kd4 Bhg4 Ke4 Bgf5+
1QN3B1/NQp1PP1p/rRp1p2P/2b1r1Q1/4qB1K/k2p3B/2n1nN2/3nR3 w - - 0 1 illegal: No proof kernel
Q2n4/2k1K2Q/4B2N/r3Np1p/1brppqP1/1B1pP1Bq/2RQPN2/1R4n1 w - - 0 1 illegal: No extended proof kernel
nN2b3/Br2K2N/2PrQNRp/kp1Ppbn1/3p1Q1P/b4p1R/5B2/1B1Q4 w - - 0 1 illegal: No proof kernel
r5kN/1p6/Q2Kpqb1/B1N2Bp1/RNp1n2p/1B4PP/bPq1Q1R1/3b3R w - - 0 3 illegal: No proof kernel
1bKN1r2/q1q1Qq1p/nQ1B4/7b/rNBpRN1P/1nQP2R1/2br2Pk/1B6 w - - 0 1 illegal: No possible last move, all moves rejected
b1k1NbB1/1RP3BN/4p1p1/Qr1RP1Pq/1QNbr3/nqrn4/6b1/5RQK w - - 0 1 illegal: No proof kernel
1b1nN2k/1pr5/1BB1P2q/3r1K1b/1Pp3RQ/Q1Nn4/1qP1RR2/1rrNQ2q w - - 0 1 illegal: No proof kernel
qN2n3/pn4NR/Rn1N1Br1/bB1nRp2/P3Q2Q/r4P2/b2P3b/2k2KbB w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 gxh5 c5 bxc5 Bf5 Ba3 Be6 Bc1 Bc8 h4 Kd7 c4 Ke6 a4 Kf5 h6 b5 h7 e5 c6 g5 c7 b4 h5 b3 c5 e3 h6 Ke4 c6 f5 Ra3 b2 Nh3 e2 Qb3 g4 Qc3 g3 Qb3 g2 Qe6 g1B Nc3+ Kd3 Ne4+ Kc2 Nf6 b1N Ng5 e4 Bb2 Nd7 Re3 Nb6 Nd7 Bb4 Nb8 Ba5 Bf6 Kc1 f3 Nc3 Bg2 Ncd5 Rh2 Ba6 c8N Bc4 c7 Ba2 Nd6 Qe8 c8B Qf8 Nd7 Rb8 Ba6 Rb7 Bh1 Qa8 Rh3 Bh2 Kf2 e1B+ Kf1 Bf2 Bb5 Bfg1 Nb8 Rd7 Re2 e3 Qe4 Rg7 Ne6 Rg6 Be5 Ngf6 Ng7 Rf8 h8R Rd8 h7 Ne8 Rh6 Rc8 Bf6 Rc3 Rg8 Ra3 h8Q Bg3 Reh2 Be5 Rh7 Bg3 R2h6 e2+ Kg2 e1N+ Kf1 B3h2 Rf8 Nec7 Re8 Nd3 Re5 Nc5 Qd8 Nb7 Qe7 Nd8 Qh4 Ne8 Qb7 Ndc7 Qbe4 Ncd5 Nc8 Rg2 Bg5 Nc4 Ra6 Ncb6 Nd6 Nb7 Bf6 Rg6
QB3r1q/nP1nK1Qb/1pbQNr2/NPp2k2/1N1R4/1n2p3/2PB1bB1/2Rr4 w - - 0 1 illegal: No proof kernel
1rbQ1Q1q/prK2R2/3pPp2/Nb1P4/n4BnQ/Pn1BNR2/R4b2/Br2k3 w - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 gxh5 c5 bxc5 Qf6 Bb2 Qb6 Bc1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 b5 c4 g5 h4 b4 d4 f3 h6 f2 c6 g4 h7 b3 a3 g3 h5 b2 c7 g2 h6 Bc5 Rh3 Qf6 Nc3 b1R Ra2 Ba6 c8R Rb2 Bf4 Rd2 Rc7 Bb6 c5 Nc6 Nf3 g1N Nd5 Rb2 Nd2 Rb1 Nb3 Rb8 Rf3 Bc8 Ne3 Na5 c6 d6 Qe1 Qg7 Rd7 Bc5 c7 Rb6 Re7+ Kf6 Kd5 Kg6 Qb4 Kh5 Qa4 Kh4 Rd7 Nc4 Na5 Nd2 Qc4 Nb3 Re7 Rb5 Kc6 Nf6 d5 Ng4 Qa4 Re8 h8B Qf8 Bc3 f6 h7 Qh8 Rf7 Rb8 Bb2 Re4 Ba1 Reb4 Nc2 Bb6 e4 Ne2 e5 Nc3 Bd3 f1B e6 Bf2 Ne3 R4b5 Qe4 Na4 Qb4 Bb7+ Kd7 Rb6 c8Q Be2 Qf8 Bc8+ Kc7 Bf1 Be4 Bb5 Bd3 Qg7 h8Q+ Qh7 Qhg8 Qh8 Bg3+ Kh3 Nd1 Kg2 Bf4 Kg1 Qd8 Kg2 Qgf8 Kg1 Qe4 Kg2 Qh7 Kg1 Qh4 Kg2 Re2 Kf1 Ra2+ Ke1 Ne3 R6b7+
1r6/p1kN1n1Q/2P3pQ/K1q1qBPR/nB3pNr/5Pb1/1r3R1B/1QN2bb1 w - - 0 1 illegal: No proof kernel
1RrKbB1q/n1r2p1n/Q3bPp1/7R/B2b1QPB/r1P3qN/1N1Q1R1p/7k w - - 0 1 illegal: No possible last move
3B1R2/1N1P4/Rp4B1/Q2r1b2/1PB1nprn/QKRqpP2/N1n2r2/4bkNq w - - 0 1 illegal: No proof kernel
R1b3RK/R1p2P1p/1pP3qn/3q4/QPb1nb1r/N1BNNBqk/1Q3Q2/3r4 w - - 0 1 illegal: No proof kernel
4r1N1/pNbknr2/3p2P1/P4rQ1/R1bqBBp1/1Q1P2B1/K4RN1/b1n1R2q w - - 0 1 illegal: No proof kernel
r4RB1/PkN4b/3pq3/p2q1RNn/2rPQ2n/1qB2npB/PbN3K1/2Q2R2 w - - 0 1 illegal: No proof kernel
1q1QR3/1Bqp1n1N/4bR1Q/1P1BrnNp/8/rK2p2q/1NrPPb2/5kBR w - - 0 1 illegal: No proof kernel
8/pKpBb1n1/1n1Q3r/RNB1q1rb/R1P2PQr/B2p3q/P6R/1kN3Nq w - - 0 1 illegal: No proof kernel
RQ1b2k1/2p4p/n1N1b2p/2BRQQPr/2r3B1/n2K1q2/2P2N1P/1qq1B1Rr w - - 0 1 illegal: No proof kernel
N5QQ/b1BkB3/b1R4p/2p4P/r1P2Rr1/NQ2P2B/nrrqpK1R/5nr1 w - - 0 1 illegal: No proof kernel
1b2NB2/4pq1p/NQ2QQP1/N2pbBrP/4P1b1/1n2R1r1/1bb1n1kB/1K1R4 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1R2Bn/b2PprB1/1RN5/BpqK2bb/1P3N1n/4Pr1Q/5k1p/2Qb1N1b w - - 0 1 illegal: No proof kernel
4b3/3rbP1B/2q3p1/1pRB1N1n/1R1n1RPK/2Q1Q1QN/1P1npn2/1k2nrB1 w - - 0 1 illegal: No proof kernel
NQnr2B1/4NnpR/n3RQ2/Rb2r2P/qB3p1K/1p1n2P1/1P2N3/2b2Qnk w - - 0 1 illegal: No proof kernel
1b2n3/1B4qn/rb3bR1/2BQ1pbp/kP5Q/N4b2/4pP1P/rRNKQRB1 w - - 0 1 illegal: Other
Krnr2RN/3p4/Bq2kbpN/r2bP3/R3BrP1/1Q1Pp3/1BQQn3/3r2R1 w - - 0 1 illegal: No proof kernel
2K1q2b/1N1NQpPB/Qp5R/n1B4r/QP2pb1B/5P2/b1nk1rN1/3bR1b1 w - - 0 1 illegal: No possible last move, all moves rejected
B3Qb2/PNN3Bk/3B4/2q3Qp/rr4pP/4R1Pb/1n1R1b1p/rKQ1nN1r w - - 0 1 illegal: Other
NBnr4/qpp2p1B/3N1P1P/rKP2r2/Q2bb2n/3BQR1R/1k6/4rRQb w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 Qh4 Ba3 Qf6 Bc1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 g5 f4 d5+ Kb5 b3 h4 b2 c4 d4 e4 g4 a4 d3 f5+ Ke7 a5 d2 a6 g3 e6 Kf6 e5+ Kg7 h6+ Kh7 f6 Kg6 h7 Kf5 e7 Ke4 e8Q Kd4 h5 g2 a7 Bb4 e6 Ne7 Nc3 b1R Nge2+ Kd3 Ng3+ Kd4 Bd3 g1R Na4 Ng6 e7 Be6 Ra3 Rg8 h8R Nh4 Ne4 Nd7 Nd6 Re1 Rf1 Bd5 Bh7 Be4 Raf3 Qb8 Nb6 Bc3+ Bb2 Ra1 Ba3 Rg5+ Bc5+ Ke5 Qc1 d1B Qg8 Bd4 e8B Ra6 Qe3 Rf5 Qgg1 Nf8 Bd7 Nfg6 Bc8 Ne7 Be6 Qf8 Bc8 Rb8 a8Q Qg8 Be6 Nc8 Qa7 Qg2 Na8 Qa2 Bb6 Qa1 c5 Qa3 Bc4 Be2 Rf4 Bf3 Bd3 Bh1 R1f3 Ne7 Rf1 Rd8 R4f2 Nc8 Rf3 Ra4 Qa5 Qa2 Qb4 Ra6 Ba7 Qa3 Bb8 Qa5+ Kc4 Qb6 Qa4 Qa7 Kb5 Kd5 Rg8 Rf8 h6 Rd8 Qe2 Bf2 Bc4+ Kd4 Bd3+ Kc3 Rgg3 Bd4 Qee3 Kb2 Rh3 Ra5+
2QbNn2/4R3/Q3p2K/rp2rQN1/RPb1Pn1b/qpB2BP1/5nbR/2k1B3 w - - 0 1 illegal: No proof kernel
b1b2k2/2r2nR1/p3RN1Q/4bB1K/2pB1BPR/P1Pp2Qr/2n1Qqn1/2b2N2 w - - 0 1 illegal: No proof kernel
b3rB1r/pB1rN2n/1qnNQ1nR/k1P3p1/2p5/b2QR2B/2P2NP1/3rR2K w - - 0 1 illegal: No proof kernel
1b4R1/Rpn4k/Q4Kr1/2B1r1r1/r2p1Nb1/qPNQQp1B/1P2BPn1/3N1b2 w - - 0 1 illegal: No possible last move, all moves rejected
Q3rkNb/7p/n1K1r2R/P1nN2p1/Rbr3PB/B1Q1rB1b/1p4NP/2q3R1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 Ke2 b5 Kd3 e5 Ke4 c5 g4 c4 d4 b3 a4 b2 f4 c3 f6 g6 f7+ Ke7 d6+ Kd7 Kd5 e4 a5 c2 f5 e3 f6 b4 Nf3 b3 Ne1 e2 Ra4 Ba6 Nc3 b1R Qd2 Ra1 Rg1 Rb1 Ba3 c1R Bg2 b2 Bf3 Qc7 Ng2 Bg7 f8Q e1B f7 Bf1 Qd3 Na6 Qe3 Ra7 Qa8 Rb7 f8R Rb3 Rf6 Qc8 Qd3 Ke8 Re6+ Kf7 d7 Nf6+ Kd6 Kg8 d8B Kf8 d5 Nd7 Bh4 g5 Rh6 Ndc5 Qc2 Rg8 Qd3 Bh8 Qd4 Qb8+ Kc6 Ra1 d6 Qc8+ Kd5 Rb6 d7 Re6 d8N Bd2 Nc6 Rce1 Na2 Rac1 Qc3 R1e3 Ne7 Be1 Nb4 Bd2 Ne1 Bh3 Ng2 Be1 Qd3 Rc4 Qc3 Rgg6 Ng8 Re8 Qe5 Rge6 Qc7 R6e5+ Kc6 Bd2 Nd5 Bb4 Kb5 R5e7 Qe5 Qc7 Qc3 Qf4 Kc6 R7e4 Bd1 Qf1 Be2 Qc1 Bf3 Re6+
b3rR2/2R2pn1/k2p3r/B2Q1Nbq/1B2N3/2qPRPpb/2K2QPn/b3N1B1 w - - 0 3 illegal: No proof kernel
3R4/1qp3QR/p2nq1P1/PNRN4/K2Q1qn1/rNPb3p/Bbr4Q/q1B1k3 w - - 0 1 illegal: No possible last move
1N1q3q/R2bB1k1/1R3p1b/2K2P2/rpBNb3/q1Q1Q1pb/1P3rP1/3NQ1nB w - - 0 1 illegal: Other
2nr1rn1/kNB1nRrn/3Nqb2/3Q2Bp/p4p2/P2B2R1/3K1PNP/2R2r1Q w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 Ke2 f4 Ke1 Bf5 gxf5 Qd7 Qf3 Qc7 Qd1 Qd8 d4 Kd7 c4 Kc7 f6 b5 c6 Kb6 a3 e5 c7 h5 c8Q g5 f7 a5 c5+ Ka7 d5 b4 d6 e3 d7 b3 c6 a4 c7 e4 Bb5 b2 Qd3 e2 Qd6 g4 Qd3 g3 Nf3 g2 Rg1 Qe7 d8B Qe6 Kd2 e1R Nc3 Nc6 Nh4 Bg7 f8R Nce7 Qd5 Bf6 Bd3 Rf1 Rf7 Rb8 Qcd7 Nc8 Q7c6 b1N+ Ke2 e3 Bb2 Be5 Ne4 Bf6 Nd6 Ra8 Nb7 Nc3+ Kf3 e2 Rc1 e1R Be7 Re5 Bd6 Rg5 Be5 Ne4 Ke2 Ned6 Kd2 Nce7 Bbc3 Rd8 c8N+ Kb8 Ba5 Rg7 Bec3 Rf8 Bd8 Ka8 Bca5 Kb8 Bac7+ Ka8 Nb6+ Ka7 Nc4 Ndc8 Ncd6 Rg4 Rh1 g1N Ng2 Nh3 Rg1 Ng5 Ne8 Nh7 Ned6 Nf5 Be7 Rg7 Bed8 Bd4 Bg5 Nfe7 Ne1 Be5 Rg3 Bf6 Qh1 Rd8 Ng2 Nh6 Qe4 Rhf8 Qd5 Nhg8
6rn/1p1rQ3/qPpN2Q1/N1B5/kpr1B2P/2R2np1/1bKR1bP1/1b2BQR1 w - - 0 1 illegal: No proof kernel
1BNr3k/3b1n2/1QRR3b/1p5N/KP1rp1rp/2PBPQq1/n5p1/2NQR1n1 w - - 0 1 illegal: No possible last move, all moves rejected
2q1nbr1/1r2pQ2/3B1nRP/3p1N2/2R1N3/2RPP1Kp/1N2p1rn/1bQB2Bk w - - 0 1 illegal: No proof kernel
NQ1R3B/p1N3Q1/2Rp1rn1/1BP4p/r2pQ3/2qb1n2/Pb1PK3/1NkBn1b1 w - - 0 1 illegal: No proof kernel
1QB1KNkq/1p4rb/R1Q2p1R/1rqn1p1Q/4rn1N/Bp2PPb1/BP6/4N3 w - - 0 1 illegal: Other
2rRb3/B1Q1bB1B/1p1pr3/3K1QP1/3P1rpn/3Rp1n1/5qP1/N1N1kqQR w - - 0 1 illegal: No proof kernel
R7/3Brbq1/Q1pnR1q1/1NBpb3/3p2Qp/QKPPrb2/6PN/n2kN2B w - - 0 1 illegal: Other
2qBRn2/Pp1bKnrR/1rBR3b/1N1Q1p2/7p/1P1B4/2N1NqpP/Q2r1k2 w - - 0 1 illegal: No proof kernel
QrN1q2K/B2r2n1/p1RN1p2/1q1Np1B1/3b1Pp1/k2bP3/Pr2R3/1n2BR1Q w - - 1 3 legal: proof: g4 h5 gxh5 c5 b4 d6 bxc5 d5 c4 Qc7 c6 Qf4 c5 Qe5 Bg2 Qd6 Be4 Qc7 Bd3 Qd8 Bc4 dxc4 f4 g5 Kf2 b5 Ke3 c3 Ke4 a6 Ke5 b4 d4 g4 h4 c2 d5 b3 e3 b2 d6 e6 d7+ Ke7 c7 Rh6 c6 Nf6 Nd2 b1Q Nc4 Qb4 Ne2 Ne4 Rh2 Qb7 Qh1 Nf2 Nd6 Ra7 Bd2 c1R Be1 Rc2 Nc3 Rh8 h6 Rb2 h5 Nd1 h7 Qe8 h6 Qb6 Re2 Qb5+ Qd5 Bb7 c8R Rg8 h8Q Bg7+ Ke4 Ba8 h7 Bd4 c7 Nc6 d8B+ Kd7 Qh5 Ne7+ Nd5 Kc6 Qh1 Nf5 Bg5 Kc5 Rb1 Rf8 Qg8 Rb7 h8B Ra7 Bhf6 Ng7 Bd8 e5 Ra1 Ne6 Kf5 Nc3 Kf6 Nb1 Be7 Nd8 Kg7 f6 Kh8 Ne6 Nb7+ Kc4 Bc5 Ng7 Nd6+ Kd3 Ne7 Be4 Nd5 Rb7 Ba7 Bf5 Bd2 Kc2 Be1+ Kc1 Rd8 Rb8 c8N Rf7 Rd7 Bd3 Rc7+ Rc2 Rc3 Kb2 Rc6 Rd7 Bf2 Nc3 Rf1 Nb1 Be1 Ka3 Rf3 Qe6 Qf7 Rdb7 Rf1 Rb2 Qc7 Qd7 Qb6 Rc7 Qb7 Qf7 Qa8 Rd7 Qh2 Qe7 Qh1 Qe8+
qk1B1K2/2pR4/pn2BQp1/4p1r1/Rb3QPN/n2rP1bR/qBP3N1/r2N4 w - - 2 3 illegal: No proof kernel
r6b/1rR1Kr2/2p4N/2PpQ1nb/R2rpB1p/B4BPP/4R2Q/qknN2Q1 w - - 0 1 illegal: No proof kernel
1K2Rnb1/rpN1pQ1n/pr1B3r/1Pb3Q1/k1N3q1/3pP3/P2N1BrQ/3R3B w - - 2 3 legal: proof: f4 g5 fxg5 h5 g4 c5 d4 cxd4 gxh5 Rh6 Nf3 Rh7 Ng1 Rh8 Kf2 d5 h4 Kd7 c4 Kc6 b4 f5 g6 d3 Ke3 a6 Kd4 f4 g7 d2 b5+ Kb6 h6 Ka5 Kc5 d4 h7 d3 h5 f3 h6 f2 Bg2 f1R Ba3 Rf2 Qf1 d1R Nd2 Rb1 Nh3 Be6 Nf4 Nf6 g8Q Rb3 Rd1 Ka4 Qg5 Nh5 Nd5 Ng7 Nc7 Nh5 Kb6 Rc3 c5 Bg8 c6 Ra7 Bd6 Ra8 e3 Re2 Qf7 Rc4 Rh4 Nf6 Bh1 Bg7 Bg3 Rf4 Bf2 Rb4 Rd4 Qf8 Rd8 Rc4 Re8 Kb4 Nd5+ Ka3 c7 Ka4 c8N Ra7 Nd6 Rf4 Kc7 Nbd7 Kc8 Rc4+ Nc7 Rc6 N6c4 Rb6 Bg1 Rg2 Bf2 Ne5 Kb8 Ng6 Rd8 Qe8 Rc8 Qd7 Re8 Qg4 Qf8 Be6 Qf7 Rg8 h8Q Nf8 h7 Rh2 Qe5 Rh6 Qg3 Ne4 Qh2 Bd4 Qhf6 Bc5 Qg5 Nf6 h8B N6h7 Be5 Rgg6 Bd6 Bd5 Qff6 Bg8 Qf7 Qe6 Qgf4 Rg2 Qg5 Qg4
N2R1Q1N/2ppB3/p1P2Q2/n2bp3/Pbr1P2q/2nqRq1k/qQ3R2/K2B1N2 w - - 0 1 illegal: No proof kernel
N5Bk/R2K4/8/bb1pp1B1/QNp2Rpr/pPN2Bn1/rQP1Pq2/1nQ2r2 w - - 0 1 illegal: No proof kernel
1Q1nrR2/R4rbN/2B3pp/pN1pq3/2Q1p1q1/B2B1N1n/1PKP2P1/kb1R4 w - - 0 1 illegal: No possible last move, all moves rejected
3BR1RR/2bQB3/1Q1nppp1/1rKB1NP1/2nprP2/2Nb2b1/r3Pp2/k5N1 w - - 0 1 illegal: Other
4B3/4rRr1/pp1N1p2/Nn1bR1B1/1b1qpp2/4RP2/P1P3Qp/K1kN1nQB w - - 0 1 illegal: No proof kernel
7N/Q1nr2k1/R5N1/P3b3/R2BK2P/4PBr1/2np1nNn/1N1Rr1Nr w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 d4 c5 dxc5 axb4 f4 b6 fxe5 Qg5 Bxg5 Ra7 a4 Bb7 Bc1 Bg2 Bxg2 Ra6 Bf1 Ra8 Kf2 f5 Ke3 Kf7 c4 d5 h6 g5 c6 f4+ Kd4 b5 h7 b3 c5 b2 c7 f3 c8N b4 a5 b3 h3 g4 e6+ Kg7 e7 f2 e8R g3 e3 g2 c6 Ra7 c7 Nf6 Rd8 Bd6 Ra4 Ne4 Ne7 Na6 c8N Rd7 Nb6 Nc7 Be2 f1N Ng6 Nf2 Ra8 Nh2 Ra6 Bg3 Bf3 Be5+ Kc5 d4 h4 d3 Nd5 Rg8 h8N d2 Qe2 Bc3 Ndf4 Be5 Na3 b1R Bb2 Re1 Bd4 b2 Nb1 Rc8 Qb5 Rcd8 Qb7 Rg8 Ngh3 g1R Qa7 Rg3 Ng2 Rf8 Ng1 Rf4 Nc3 b1N Kc6 Na3 Nb1 Nc2 Kc5 Rfg4 Kc4 Nd1 Kd3 Rh3 Ne2 Rgg3 Ke4 Ng4 Rg1 Rh1 Rf1 Nh2 Ng1 Nb2 Rc6 Nd3 Ra6 Re2 Rc1 Re1 Rd1 Nf2+
3B1q1b/Q2R2p1/1q4PB/2N1bBB1/Pn3Nr1/P1bN1n2/2p4R/1k1K3B w - - 0 1 illegal: Other
2rN3k/Nb2RR2/1rNK4/4nn1P/3BN1Qn/1NP4b/1Rq1PB2/2b1r2b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 fxe5 Be7 d4 Bd6 dxc5 Bf8 gxh5 a6 b4 Rh7 b6 Rh8 b7 Nc6 b5 Bd6 b6 Bf8 Bg2 Nb8 Bc6 Qg5 Ba4 Qd8 Bb5 axb5 h6 f5 Kf2 Kf7 Kf3 d5 Kf4 b4 h4 d4 c6 b3 h7 d3 h5 b2 c7 d2 c3 Nd7 b8R Ne7 b7 Ra6 Qa4 d1R Be3 Re1 Nd2 b1B Ngf3 Be4 e6+ Kf6 Rf1 g5+ Kg3 Kg7 Ne5 g4 Kf4 g3 Nc6 Rg8 h8B+ Kh7 Rb1 g2 Nb3 g1N Ra8 Bg7 Ra7 Nf3 Rb2 Nh4 Qb4 Bh1 Bc5 Nf6 Ke5 f4 Bb6 f3 Qg4 Qf8 Kd6 f2 Be3 Neg6+ e7 Nd5 b8N Qf3 e8N Bh6 Bhd4 Qe4 Nf6+ Kh8 Rb7 Qc2 Ne4+ Ne5 Ra7 Ra5 Nd8 Ne7 Nbc6 Rb5 Ne6 Rb6 Rb7 Rf8 Ra7 Ba6 c8N Rg8 Rc7 Bb7 Na7 Rc8 Nd8 Bg5 Bf4 Bh6 Bg3 Bc1 Rd7 Nd5 Re7 Ne3 Rg1 f1B Rg2 Rd1 Rf2 Bh3 Rff7 Re1 Bf2 Nef5+
Q2R4/n1KN2n1/r3NBP1/8/PrBRbb2/1r1n3P/q1B3Bb/n2BN1k1 w - - 0 1 legal: proof: d4 e5 dxe5 d5 c4 g5 cxd5 a5 b4 axb4 f4 h5 fxg5 h4 Qd3 h3 Qxh3 Bf5 Qh7 Bc8 Kd2 Kd7 Kd3 c5 Ke4 b5 g4 b3 a4 b2 g6 c4 g7 f5+ Kd4 f4 e4 f3 e6+ Kd6 g5 b4 e7 c3 e8B f2 h3 c2 Qh6+ Nf6 g8B b3 Bh5 Na6 Nf3 Nc5 Bg2 f1N Ne1 Bb7 Nc3 b1N Bd1 Nd3 Bb2 c1B g6 Be7 Qf8 Rh4 Ra2 Bf4 e5+ Kc7 d6+ Kb6 e6 Ra6 d7 Ne3 Qe8 Bed6 e7 Be4 Bc4 Nh5 Nd5+ Kc6 Ba1 b2 Nf6 Nc3 Rf1 b1R Rd2 Bh2 Rf4 Rb3 Bb2 Qa8 d8N+ Kb6 Qg8 Ng7 e8B Qb8 Rg4 Bdf4 Bd7 Qc8 Bf5 Qe6 Qf8 Qg8 Ne6 Qf7 Bd5 Nc2+ Kc4 Nb5 Qa8 Na7 Nd7+ Ka5 Bf6 Na1 Kd4 Kb4 Bc4 Ka3 Nc2+ Kb2 Ne1+ Kc1 Qc6 Rh8 Qa8 Rhb8 Rh4 R8b7 Rh8 R7b4 Rd8 Ne5 Kc5 Qg8 Rd6 Nd3+ Kd4 Kd2 Rd5 Nc1 Kc5+ Ke3 Rd6 Kf2 Rd4 Bf3 Bfc2 Kg1 Be5 Bc6 Kd6 Nd3 Kc7 Be4 Rd6 Qh7 Bf6 Qh4 Qc6 Qf2 Qa8 Ne5 Rd4 Qe2 Bb1 Qa2 Bbc2 Nd3+
b1BB3N/n1K1P1Q1/1R3rB1/bn1k2N1/1n1B1Prb/2B2R2/7P/q2qn2R w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 e5 d4 f5 Qa4 Qd6 dxe5 Qh6 e6 Qf6 e5 Qd8 Qe4 fxe4 Ke2 Ke7 Ke3 a5 Kd4 g5 Kc5 e3 f4 a4 b4 a3 h6 a2 h7 g4 b6 c6 b5 g3 d6+ Ke8 b7 g2 b6 e2 e7 Kd7 e8B+ Ke6 Bd2 e1N Bg6 Nf6 Nh3 g1N Nc3 Nd5 Ba6 Ngf3 Ne4 Nb4 Bc3 Rg8 h8Q Nd4 Qg7 Be7 Rb1 a1B Rb3 Bh4 d7 Nb5 Nd6 Rf8 Ra3 Rf6 Nf7 Ra7 Bd4 Bc3 Nh8 Bd2 Rf3 Ra8 Kc4 c5 Bc3 N8c6 b8R Nca7 b7 Qa5 d8B Qa1 Bd4 Bd7 Bc3 Nbc6 Bd4 Ba5 Bc3 Be8 Bd4 Bf7 Bc3 Nb4 Ng5+ Kd7+ e6+ Kd6 Bd4 Be8 e7 Bc6 Rc8 Rb8 Rc7 Rc8 b8B Ba8 Rb7+ Kc6 Bbe5 Rb8 Bb6 Rg8 Bd8 Qd1 Bc3 Qa1 Bed4 Kd6 Kb3 Kd5 Rb6 Qd1+ Bc2 c4+ Ka4 Qc1 Bc8 Qd1 Bb2 c3 Ba1 Qe2 Bg6 c2 Bac3 c1Q Re6 Bc7 Rb6 Qed1+ Ka5 Na2 Ka6 Qa1 Re6 Ba5 Rd6+ Kc4 Rb6 Kd5 Qf7+ Re6 Bd3 Nd6 Nh7 Rg5 Bg6 Ndb5 Qg7 Rg4 Ng5 Bc6 Rf2 Rf6 Rf3 Bd7 Kb7 Nb4 Ka8 Bc6+ Kb8 Na3 Kc7 Bb7 Ngf7 Ba8 Ng5 N3b5+
B2R4/KRB2P2/3N1qnb/4nB1B/1B1n2rQ/r1rR3P/rkPr2q1/2N5 w - - 0 1 illegal: No possible last move, all moves rejected
B2RKB1n/4b3/NNq2rP1/1P6/2R2N1P/1p3nQ1/bk1rnb2/Nr3B1N w - - 0 1 legal: proof: b4 b5 f4 c5 d4 g5 fxg5 h5 g4 e5 dxe5 Be7 gxh5 Bf8 a4 cxb4 axb5 Bb7 Nc3 Ba6 Nb1 Bc8 Kd2 Ke7 Kd3 Ke6 Kc4 f5 h4 a5 e4 f4 h6 f3 h7 f2 Qe1 a4 Nd2 a3 Nb3 d6 Nh3 a2 Ba3 Qd7 Rd1 Ra5 Na1 Ke7 Kd5 Nh6 c4 Ra6 e6 Nc6 c5 Nd4 c6 Nf3 c7 Nf7 e5 Rg8 Rc1 Nh8 Rc4 Rg6 Rg1 Rf6 Rgg4 Ra8 Rgd4 Qe8 Rd2 Bd7 Qe3 Rd8 Qf4 Bc8 Qg3 Rd7 Kc6 d5 Rd3 d4 Rd1 d3 Rd2 Ba6 Rd1 d2 c8N+ Kd8 Nb6 Ke7 Re1 Bc8 Rd1 Rd4+ Kc7 Qg6 Kc6 Bb7+ Kc7 Bd5 Kc8 Ke8 e7 Kf7 Kd8 Ke6 e8B Bc5 Bc6 Be7+ Kc7 Kf5 Kd7 Ke4 e6 Ke3 Ba8 Ke4 Be2 f1N Nf2+ Ke3 Nh1 Qh6 Qg4 Ng3 Bf1 Ne2 Qg3 Ke4 Ke8 Kd3 Rdc1 d1R R1c2 Bd8 e7 Rb1 R2c3+ Kd2 Rc8 Kd1 R3c4 Rd2 Rb8 Bc7 Rd8 Bd6 Kd7 Bc5 e8N Be7 Nc7 Qg6 Na6 Qe4 Nc2 a1B Ke8 Bd4 Na1 Be3 Nd7 Bf2 Nb6 Nf7 h8N Qc2 Rc3 Ba2 Rc4 b3 Ng6 Nh8 Nf4 Qc3 Bc5 Kc1 g6 Kb2 Rd3 Bd8 Bf8 Be7 Rd8 Qc2 Ra4 Qc5 Rc4 Qc6+
4N3/1qR1bBp1/2PBq2n/1B2r2N/1B4kP/QB1n1bq1/2P1bRr1/3R3K w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 d4 c5 dxc5 b4 f4 exf4 a3 Rh7 axb4 Rh6 b5 Rh8 Kf2 Ke7 Kg2 Ke6 e4 f5 h4 d5 e5 d4 a6 d3 a7 d2 b6 Ba6 h6 Bd6 h7 Qf8 b7 Qe8 Ba3 Nf6 Rh2 f3+ Kh1 f2 Bb5 f1Q Rf2 f4 Bb4 Kf5 e6 f3 e7 Qd3 Qc1 d1B Qa3 Ng4 Nd2 Nh6 Ne2 Nc6 b8B Kg4 Nf4 Ne5 Ne4 Rf8 h8R Qc6 e8B Qb7 Rb1 Be7 Bd6 Rb8 Bg6 Rbe8 a8B Qc4 Rc1 Nd3 Nh5 Qe6 Rb1 Rf5 Bf7 Re5 Rc1 Be2 Rd1 Rd8 Rf8 Rd7 Rc8 Rd8 Rh2 f2 Rc7 Bf3+ Rg2+ Kf5 Nef6 f1Q+ Kh2 Qf2 Kh1 Qg3 Ne8 Qb8 Bb7 Kg4 Bd5 Qb7 c6 Rd7 Bb3 Rd8 Bdc5 Rdd5 Bd6 Rg5 Bg8 Rde5 Bf7 Nf4 B5a4 Bae2 Bb5 Nd3 Qa2 Rgf5 Qa5 Bd5 Qa1 Rf2 Qa3 Kf3 Rgg1 Rg2 Rgf1+ Kg4 Rf2 Bdf3
k1nRn3/b1p5/1rrrP1bK/4B3/1B3PB1/1Nn3N1/BPRrqQ1R/2B5 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 e5 d4 f5 Qa4 Qd6 dxe5 Qh6 e6 Qf6 e5 Qd8 Qe4 fxe4 Ke2 g5 Ke3 a5 h4 g4 Kf4 e3 h6 g3 h5 a4 e7 Kd7 Kg5 e2 f4 e1R h7 g2 d6 a3 h6 a2 b6 Kc6 e6 Kb7 d7 Ra6 Ne2 g1N Ng3 Ka8 Bc4 Nf6 e8B Ne2 Rh2 Nc6 Nd2 Bb7 Nb3 Nc3 Bh5 Rd1 Bg4 Na7 Rb1 Qb8 d8R Bc5 Bd5 Re8 h8B a1R h7 Nc8 Kh6 Rd2 Bc4 Be4 b7+ Ka7 Bg7 Rad6 h8B Bg6 Bf8 Raa6 Ra1 Bf2 Ra5 Bg1 Rc5 Rac6 Be7 Rf8 Bg7 Ne8 Be5 Rf5 Bd5 Rb6 Rc4 Rdc6 Bb4 Rf7 Rc5 Rd7 Bc4 R7d6 Bd5 Na4 Rc3 Qa8 Rc2 Nc3 Bc4 Kb8 Bd5 Qa6 Bc4 Ka7 Bd5 Qe2 b8Q+ Ka6 Bc4+ Rb5 Qa8+ Kb6 Qa5+ Kb7 Qb6+ Ka8 Qf2 Rbb6 Nd4 Nd5 Ba2 Nc3 Nb3 Ra6 Qg2 Ba7 Qf2 Rab6
1R1BB3/1B1Rn1kq/2r3Nq/1Q4Pq/B3Nbn1/P4P1r/p5K1/2Rb1B1q w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 d4 Nf6 dxc5 Ng8 hxg5 a5 Qd3 a4 Qd1 a3 Bd2 b5 Bc1 b4 bxa3 b3 Qd3 bxa2 Qd2 Nc6 Qd1 Nb8 c4 Kf7 g4 d5 g6+ Kf6 f3 e5 Kf2 h5 g7 e4 c6 d4 c7 h4 c5 d3 c6 h3 Nd2 h2 Qb3 e3+ Kg2 e2 Nh3 e1Q Nf4 Qd5 Qb5 Bd7 c8B Be8 c7 Ne7 g8B Nbc6 Ng6 Qee4 Bb7 Kg7 c8B Ne5 Bd7 Ra6 Bf7 Rh3 g5 Ng4 Bb2+ Qdd4 Bb3 Rc6 Rd1 Bf7 Ba4 Bb3 Rc1 Bd1 Be8 Qe6 Ne4 d2 Bc3 Qg8 Ba5 Qh7 Rg1 Qf6 Bd8 Qh5 Ne5 Qfh6 Ng6 Bb3 Rh1 d1Q Rg1 Qd3 f6+ Kh7 f7 Bd1 Rh1 Bg7 f8R Be5 Rg1 Bf4 Rh1 Re6 Rc7 Rc6 Rd7 Kg7 Be2 Bc2 Rc1 Bd1 Bf1 Qd5 Rf5 Qg8 Rfc5 Qgh7 R5c4 Ra6 Rc8 Rc6 Rb8 h1Q#
1r1N3N/1RB5/1N1pqP1N/2b1P1K1/bP2qbR1/3k2B1/Rn3Q1b/Nn1r4 w - - 0 1 illegal: No possible last move, all moves rejected
2q4k/RNrbPn1n/4KbRB/NP6/BN3qr1/Prp1N1B1/r5N1/1Q6 w - - 0 1 illegal: No possible last move, all moves rejected
1b2NNKR/p1b1R3/2rb1B1n/6N1/N1P1q3/PBQq3q/1rRNkPr1/8 w - - 0 1 legal: proof: e4 d5 c3 d4 cxd4 f5 b3 fxe4 Nh3 c5 Ng1 c4 bxc4 Qa5 Qf3 Qd5 Qd1 Qd8 g4 g5 h3 Bf5 gxf5 Nc6 h4 g4 Qf3 Ne5 Qe2 Nf7 Qd1 Ng5 hxg5 Qd5 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 h5 Ke5 b5 Ke6 h4 Kf7 e5 g6 g3 f6 e3 a3 b4 d5+ Kc5 d4+ Kb6 g7 e2 d6 e1Q d5 Kc5 d7 e4 d6 e3 Qd3 g2 Nc3 b3 Be2 h3 Nf3 g1B Ra2 b2 Nd2 b1R Rc2 Rb2 Bd1 e2 Qf3 Kd4 Na4 Rc8 Qb3 Qa5 d8R Bh2 d7 Qc3 Re8 Kd3 d8N Bb8 Re7 h2 Ne6 Rc6 Ng5 Qf1 Qb4 e1B Qa5 Qh3 Qe5 Ra2 Bb2 Nh6+ Ke8 Qe6 g8N Qa5 f7 Nf5 Nb1 Ne3 Nf6 Qd2 Rc1 Nf5 Bb3 Qd1 Qa5 Qe4 Re5 Bfd6+ f8N Ke2 Kf7 Qd3 Re7 Rh4 Ne8 Rg4 Ba1 Rg2 Bf6 Rb2 Kg8 Beb4 Nd2 Bdc7 Rc2 Bbd6 Ra1 h1Q Qc3 Qh5 Rh1 Qhf3 Rh5 Qh3 Rh8 Nh6+
R7/1B1B3b/1b1r1bP1/r1k1KBB1/7B/1PNqb2P/rpbnR3/1Q1N2R1 w - - 0 1 legal: proof: b4 d5 e4 h6 exd5 Bh3 g4 Nc6 g5 Nb8 g6 Bd7 Bb2 Bg4 Bf6 Bc8 Bg5 hxg5 f4 c5 bxc5 b5 f5 b4 f6 b3 fxg7 b2 Bd3 Nc6 Ba6 Na5 Bf1 Nb3 axb3 Rh6 Nc3 Rh4 Nb1 Rh8 Kf2 Kd7 Kg3 a5 d4 e5 c4 f5 d6 Kc6 d7 f4+ Kg4 e4 Kf5 a4 h3 a3 Bg2 a2 Qf1 f3 Rh2 f2 Qd1 f1B Ke5 g4 Nc3 g3 Nge2 Ra5 Qb1 Be7 Nd1 Nf6 Nec3 Bd3 g8R Bc2 Bf3 Bb7 Re2 g2 Bg4 g1B Bf5 e3 d5+ Kc7 d6+ Kc6 Re8 Ne4 Rf8 Nd2 Rg8 Qc8 d8B Qd7 Rf8 Bh4 Bg5 Bgf2 Ra8 Rd8 Re1 e2 Rg1 Qc8 d7 e1B Rg2 Be3 Re2 Rg8 d8B Qd7 Bdf6 Qd3 Be7 Bhf2 Bh4 Rd8 Beg5 Rd6 Bd7+ Kc7 Bf5 Bd5 c6 Kb6 c7 Kc6 c8B Kc5 Bb7 Bg8 Bd7 Bh7 Bf5 Kb4+ c5 Bg1 Na4 Kb5 c6 Be1f2 Nac3+ Kc5 c7 Bd4+ Kf4 Bf6 c8B Be3+ Kg4 Kb4 Bcd7 Bb6 Kf4 Kc5 Ba4 Bfd8 Ke5 Be3 Qc1 Be7 Rb1 a1R Bad7 R1a2 Ra1 Ra6 Qb1 R2a5 Ra4 Ra7 Rg4 Ra2 Rgg2 R7a5 Rg1 Bf6+
BN2Nr1N/K2Q2q1/P4PB1/1p4rq/3Bn1nP/q1Rn4/4k1N1/N1Rb1q2 w - - 0 1 legal: proof: c4 c5 e4 d5 cxd5 f5 exf5 a5 d4 h5 g4 e6 gxh5 c4 b4 Bc5 dxc5 axb4 Ke2 Ke7 Ke3 Kf6 Kd4 g5 a4 b5 f4 c3 h4 b3 d6 b2 a5 c2 a6 g4 d7 g3 h6 g2 c6 e5+ Kc5 e4 c7 e3 Kb6 e2 h7 e1N Nf3 g1Q+ Be3 c1Q Ra3 Qg4 Rc3 Bb7 Bd4+ Kf7 f6 Ke6 f5+ Kd5 f7 Ke4 f8N Ne7 f6 Qc8 d8N Qh5 Nfe6 Nd3 Nc6 Ng6 Ne1 Rf8 h8N Qd7 c8B Nge5 Nc7 Qg7 Ng2 Ng4 Na3 b1Q Nc2 Qa3 Ne8 Rg8 Qd2 Kf3 Bf5 Bc8 Na1 Nd7+ Kc7 Qe1 Bg6 Nc5+ Kb6 Ne4 Nb8 Be6 Rg1 Bb3 Rh1 Bd1 Be2+ Kg3 Bf3 Qf1 Rg1 Ra7 Rh1 Rf7 Rg1 Rff8 Rh1 Nef2 Ba8 Ne4 Rg1 Kf3 Rh1 Qgh6 Ka7 Q6g5 Qf4+ Ke2 Qc7 Qgh6 Qd7 Qg7 Rc1 Rf7 Rh3 Rgf8 Rf3 Re7 Rg3 Re5 Rf3 Rg5 Rg3 Ndc5 Rgc3 Nd3
N6B/1nnP1RR1/3n1q2/1B1pPN1b/N3n3/kbqKN3/rN2P3/bR5Q w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 fxe5 c5 g4 Bd6 gxh5 Bf8 d4 a5 c4 cxd4 c5 d5 Nc3 Ra6 Nb1 Rd6 cxd6 Bg4 Na3 Bh3 Nb1 Bc8 Kd2 Kd7 h4 f5 b4 g5 b6 Kc6 b7 Kb5 h6 g4 h7 d3 h5 g3 h6 a4 Nc3+ Kc4 b5 Kb4 b6 a3 Bh3 g2 Rb1+ Kc5 Nf3 g1N Ne1 a2 Ng2 a1Q Ne3 f4 Bd7 f3 Bb5 Nd7 b8N f2 b7 Nh3 Nc6 Ng5 b8N Qf6 Rg1 Ne7 Na5 Nf5 Nac4 Ne6 Rg7 Nc7 Nb2 Kb4 Qh1 Nc5 Na6+ Ka3 Nca4 f1N+ Kc3 Rg8 h8R d2 h7 Nb7 Kd3 d1B Rf7 Rg4 Rg8 Bb3 h8N Nd2 Ng6 Ne4 Nh4 Bd7 Rgg7 Be8 d7 Bc5 Bd2 Nfd6 Nhf5 Bd4 Be1 Rg1 Bh4 Rc1 Bg5 Rc2 Bh4 Qh6 Bf6 Qh8 Re7 Bh5 Rgf7 Qh6 Bh8 Qf6 Rg7 Bc3 Ref7 Bd4 Nbd1 Ra2 Ndb2 Nce8 Nc7 Bc3 Na8 Nc7 Rbg1 Qe1 Rf1 Qg3 Rb1 Qh3 Nd1 Ba1 Ndb2 Qg3 Qh4 Qe1 Qh1 Qc3+
5B1R/2q1BNbP/7b/Bn2Pb2/R3P1NR/pnn1KB1n/1Q1r4/5kBb w - - 0 1 legal: proof: c4 b5 a4 h5 axb5 g5 f4 d5 cxd5 e5 fxe5 a5 g4 h4 Qb3 Ra6 Qd1 Rah6 h3 Rh5 gxh5 g4 Ra4 gxh3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 d4 f5 b4 c5 e4 f4 h6 a4 h7 c4 b6 f3 b7 c3 d6 Kc6 b5+ Kb6 d5 Kc5 b6 h2 d7 h3 d6 c2 Na3 Na6 b8B Qc7 d8B Nf6 d7 Nd5 b7 Nc3 Bh6 c1B Nc2 Bg7 Bg2 Kc4 Be7 Rd8 Ba7 Bd2 b8B Kd3 Qc1 Bf4 Ne3 a3 Rb1 Bg5 Rb4 Bf4 Qb2 Bg5 Kg3 f2 Kf3 f1N Ng4 Nd2+ Kf2 Nb3 Ra4 Bd2 Nf3 Bc1 Ng5 Bd2 Ra1 h1B Nf7 h2 Bb6 Bf4 B8a7 Bc1 Ba5 Bd2 Kg3 Ke2 Ra2 Ke1 Bf3 Kf1 Bg1 Bc1 Bhe3 Bd2 B3c5 Bdh6 Bf8 Qb8 Bcd6 Nc7 Bde7 N7b5 Ra1+ Nd1 Rc1 Qc7 Rc6 Ndc3 Rg6 Re8 d8R Bf5 Rc8 Rd8 Rb6 Be3 Rh6 Rd2 Rh4 Beh6 Bg5 Bg2 Kf4 h1N Ke3 Nf2 Re8 Nh3 Ra8 Nf4 Bge7 Bh1 Beb4 Qd7 Bfe7 Qc7 Rh8 Bc8 Bf8 Bf5 Bbe7 Nh3+
2kB4/4K2P/NBN3r1/1Bb1R1P1/1qQBP2N/4q1B1/rr2qnpr/4Rr2 w - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 a4 g5 axb5 d5 cxd5 h5 Bh3 Nd7 Bg2 Ndf6 Bf1 h4 h3 Nh5 gxh5 g4 Nc3 g3 Nb1 Bg4 hxg4 Bc5 Qb3 Be7 Qd1 Bf8 d4 Kd7 Kd2 f5 Kd3 c5 Kc4 a5 b4 a4 e4 g2 d6 h3 Kd5 c4 h6 f3 b6 f2 b5 h2 b7 a3 b8N+ Kc8 Ke6 a2 b6 c3 d7+ Kb7 h7 f4 d5 f3 g5 c2 d6 Nf6 Ne2 Ne8 Bb2 c1Q Qc2 Ra6 Qc4 Qe3 Bd4 Nf6 Nd2 Ng4 Re1 Qc7 d8B a1R d7 Bc5 Rb1 Rf8 Rb5 R1a2 Rg1 h1R Ra5 Bd6 Re5 Qc5 Bc7 Rf7 d8B Rh2 Rh1 Rb2 Rg1 Ra8 Na6 Qb4 Rh1 Bc5 Rg1 Kc6 b7 Rd7 b8B Kb7 Bb6 Rd6+ Ke7 Ra7 Nb3 Ra8 Nf4 Kc8 Na5 Ra7+ Bb8c7 Ra8 Be2 f1R Ng6 f2 Nh4 Ra7 Nc6 Ra8 Nab8 Raa2 Rh1 Rg1 Bd3 f1Q Na6 Qfe2 Bb8 Rc1 Re1 Rcb1 Qc1 Nf2 Bb5 Qg4 Qc4 Qgf3 Re2 Rf1 Re1 Qfe2 Re6 Rd5+ Kf7 Qd1 Bg3 Qde2 Re5 Rd6 Ke7 Rg6+
3n1RNq/1PNBPn2/RqQrp1kB/1b3qB1/B2q3q/5q2/1KPB4/2R5 w - - 0 1 illegal: No possible last move, all moves rejected
1N2B3/1k2NP2/Nr1nq1R1/P2R1R1R/p6p/3bn1P1/Q4BR1/1rK1nrb1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 f5 e4 d5 exf5 b5 axb5 a4 cxd5 Qd6 Qe2 Qa6 Qd1 Qa5 bxa5 Ba6 Qb3 Bb7 Qd1 Bc8 d4 Kd8 Kd2 c5 f4 Kc7 d6+ Kb7 f6 e5 f5 h5 b6 h3 f7 c4 f6 h2 g3 e4 d7 Nh6 d8R Bg4 d5 Nd7 d6 Nc5 d7 Rg8 Nh3 Na6 Qe2 Rc8 Ra2 Bc5 f8R Rh8 Nc3 Bg1 Nf2 Nc7 Nd3 Nf5 Nd5 Ne8 N3b4 Rh6 Na6 Ne3 Ne7 Nd6 f7 Rc7 Rg8 Bf5 Rg6 h4 Rh8 Rc8 d8R Rb8 Ba3 c3+ Kc1 c2 Bc5 Be6 Bh3 Bc4 Bd7 Bb5 Be8 Bd3 Rg7 Rf6 Rh5 Rf5 Rg6 Rf1+ Kb2 c1R Qg2 Nd5 Bf2 e3 Rd7+ Ka8 Rd8 e2 Rd7 e1N Rd8 Rc5 b7+ Ka7 Rd7 Ne3 Rd8 Re5 Kc1 Rb5 Rb2 Rb6 Rbb5 Ndf5 Rdd5 Nd6 Rbc5 Rc8 b8N Kb7 Rdf5+ Rcc6 Qd5 Rb5 Qa2 Rcb6 Rcd5 Rb1+ Kd2 N3c2 Bd4 Ne3 Bc5 Bf2 Rg1 h1Q Rg2 Qh3 Bd4 Bg1 Bc5 R1b3 Kc1 Qg4 Bd4 Qe4 Bc5 Qe6 Bd4 N3c2 Bf2 Ne3 Nc7 R3b5 Nca6 Rb1+
5BB1/2k2bN1/K4n2/PpP2RnN/b2Q2bN/P1NR1q1r/4qp1r/3N1B2 w - - 0 1 legal: proof: f4 c5 b4 a5 bxa5 e5 fxe5 Be7 d4 cxd4 g4 Bf8 e3 h5 gxh5 d5 Nf3 d3 Kf2 d4 Bd2 Bc5 Bc1 d2 Ng1 d3 Bb2 Qg5 Bc1 Bd4 exd4 Qd8 c4 Kd7 Bg2 b5 Ke3 f5 h4 g5 d5 g4 Kd4 f4 Kc5 f3 d6 g3 e6+ Ke8 h6 f2 h7 Nf6 e7 Kd7 e8B+ Ke6 h5 Ba6 h6 Ng4 a3 Ke5 d7 Ne3 Ne2 Qg5 Kb6 Kd6 d8N Rg8 h8N Qd5 h7 Bb7 Bf1 g2 Ne6 Na6 Ng6 Ng4 h8N Nf6 Rh5 Nc5 Bf7 Nce4 Ngf4 Rg3 Nhg6 Rh8 Rf5 Rh2 Bg8 Rgh3 c5+ Kd7 Qa4 d1B Nh5 d2 Qd4 Ba4 Nh4 d1B Bh6 Ng5 Bf8 Ba8 Neg7 g1Q Ka6 Qg4 Ra2 Kc7 Rd2 Qh1 Rd3 Bd5 Nef4 B1f3 Nfg2 Bf7 Ne3 Qe4 Nc3 Bg4 Ned1 Qhf3 Ne2 Qe8 Nec3 Qee2
1R1b3q/B1Nk1rP1/6Nq/KP3n2/2Bp2B1/1n3nPQ/NN1R1pb1/N5r1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 c5 fxe5 b4 d4 cxd4 a3 Qf6 axb4 Qb6 b5 Qd8 Kd2 f5 c4 d5 e4 h5 e6 h4 e5 h3 e7 h2 a6 f4 g3 d3 Kc3 f3 Kb4 d2 g6 f2 g7 Kd7 c5 Nf6 e8N Qb6 e6+ Ke7 c6 Qc5+ Ka5 Qc2 a7 Rh7 c7 Qa2+ Na3 Nbd7 Qh5 d1N Nd6 Ng4 Ne2 Nge3 Nc3 Nc2 Nc4 Ne5 Qh3 Ne1 Nb2 N5f3 Bc4 Nd4 Be3 Bb7 c8N+ Kd8 Rc1 Nef3 Rc2 Be7 Rd2 Ke8 Re1 h1Q Ree2 Qb1 Nc2 Qc1 Na1 Rh8 Re1 Rf8 Na2 Rf7 Ree2 Bf6 Ne7 Rc8 a8N Nb3+ Kb4 Rc5 Ng6 Bd8 e7 Rc7 Bd4 Ne3 Ba7 Nf5 Re6 d4 Rb6 Bc6 Rb8 Kd7 Ka4 Bd5 Kb4 Rc6 Nc7 Re6 Ka4 Re1 Kb4 Rg1 e8B+ Kd6 Bd7 Be4 Qg4 Qh8 Qh3 Ba8 Rd1 Qch6 Rd2 Ng5 Bc8 Bg2 Ka4 Nf3 Bd7 Ne7 Bg4 Nf5 Kb4 Kd7 Ka4 Nc5+ Ka5 Nb3+
1qb2N2/1nk1BrrN/b1B5/2q2QP1/PN1N1RK1/1R1pr2N/2b1P2p/1R6 w - - 0 1 legal: proof: d4 a5 h4 e5 f4 g5 b4 c5 dxc5 f5 g3 g4 Ba3 Bh6 Bc1 Bg5 hxg5 axb4 Qd3 Nc6 Qd4 Nce7 Qd1 Ng6 fxe5 f4 Qd6 f3 Qd1 Nf4 gxf4 Kf8 Rh5 Kf7 Rh1 Ke8 Kf2 b5 Kg3 d5 a4 Kd7 c4 h5 e6+ Kc6 f5 d4 f6 f2 e7 d3 e8N b3 f7 b4 f8N b2 Ra3 b3 Nh3 Rh7 Nd2 b1B Nf6 b2 Nf3 Qe8 Bg2 f1R Nd4+ Kc7 c6 Nh6 c5 Rg7 N6h7 Rff7 Rb3 Bc2 Qf1 b1B Ba3 Ba2 Qf5 h4+ Kf4 g3 Rhb1 Qd8 Be4 g2 Bb4 Ng8 Kg4 Ne7 Bf3 g1Q+ Bg2 Be6 Ba3 Qb8 Bb4 Kc8 c7 Nc6 Ba3 Qc1 Bb4 Kb7 c8N Kc7 Ne7 Na5 c6 Bc8 Ba3 Nb7 Nd5+ Kd8 Nb4 Kc7 Be4 Ra5 Bf3 Re5 Bh1 Re3 Bg2 Kb6 c7 Qg1 Rc3 Qc1 Bc6 Bc4 Rcb3 Ba6 Ra1 Be6 c8R Bd7 Rd8 Bc8 Rab1 Kc7 Re8 Rg6 Re4 Rgg7 Ng1 h3 Rf4 h2 Nh3 Bd1 Na2 Qc3 Be7 Bc2 Nb4 Qc5
N2n1N1B/1nB2P2/RB2bnRb/Q7/1Bk1p1p1/3qP1rR/3BK1P1/1qn5 w - - 0 1 illegal: No possible last move
B2K3r/BPR2b2/4kB1p/Q1Pb2R1/NN4RR/3q1n2/1qr2PpR/r2r4 w - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 g3 f5 exf5 b5 axb5 Bh6 Na3 Na6 Nb1 Nc7 h3 g4 h4 Bg5 hxg5 Nd5 Nd2 Kf7 Nb1 Nf4 gxf4 Ke8 Ke2 Kf7 Kd3 a5 Kc4 e5 Kd5 d3 Kd6 h6 b4 g3 c4 d2 b6 a4 b5 e4 g6+ Kf6 g7 a3 b7 a2 b8B e3 c5 e2 b6 e1Q Ba7 Qf8+ Kc7 d5 Rh2 d4 Nc3 d3 Na4 Qe2 Bg2 Ba6 Nf3 Rb8 Nd4 Rh7 Qe1 d1R Qa5 d2 Ba8 g2 b7 Bd3 Bb2 Qe3 Nc2+ Kf7 f6 Bg6 f5 Rd8 Nb4 Ne7 g8R Qd3 Bc3 Bh5 Rg4 Nc6 Rb1 a1R Be5 Ke8+ f7+ Ke7 f6+ Ke6 Rc1 Qg8 Rcc4 Rh8 f8R Qg7+ f7 Nd4 Rg8 Nf3 Bf6 Rdc1 Rg5 d1B Rch4 Rc2 Rgg4 Rd6 Kc8 Rd5 f8R Bf7 Rd8 Rd4 Rd7 Rd6 Kd8 Be2 Be7 Qb2 Rg5 Ne1 Bf6 Bf3 Rgg4 Rd4 Rg5 Bd5 Rc7 Nf3 Rgg4 Qe3 Rg5 Rdd1 Rgg4 Qd3 Rg5 Bg6 Rgg4 Be8 R8g5 Bf7+
1Q1BR3/3RB1B1/b1P1B1r1/1np1n3/2B1P1NK/2n1bb2/1P1b1p1N/b1k2N2 w - - 0 1 legal: proof: c4 a5 f4 h5 d4 e5 fxe5 c5 a4 b5 cxb5 Qf6 g4 hxg4 d5 Qc6 b6 Qb5 axb5 Ra7 Qa4 Rc7 Qd1 Rc6 dxc6 Ke7 Qd2 Kd8 Qd1 Ke8 Kf2 Ke7 Kg3 Ke6 h4 Kf5 e6 Ke4 b7 f5 e3 g5 h5 d5 e7 f4+ Kg2 g3 e8B d4 b6 a4 h6 a3 h7 g4 Rh2 a2 Bd2 d3 Ba5 d2 Bf7 Ne7 Qb3 d1B Be6 Nf5 Bfc4 Rg8 h8B Nd7 b8N Bh6 b7 Nd6 Nf3 Rg6 Bg7 Nb5 Bd8 Ne5 Nd7 Bg5 b8B Ba6 Rh1 Bh6 Nh2 f3+ Kg1 g2 Kf2 g1B+ Kg3 Be2 Kh4 g3 Bd6 g2 B6e7 Bd1 Na3 Be2 Rd1 a1B Nc2 Bf4 Nb6 Bh6 Rd7 Bf4 Nd5 Bf2+ Kh5 g1N Qb4 Bd1 Qb3 Ne2 Re1 Bg1 Kh4 Nec3 Re2 Na3 Qb8 Nab5 Ba2 Kd3 Nf6+ Nd4 Re1 Kd2 Nfg4 Kc1 Bac4 Ndb5 e4 Na7 Rf1 Bd2 Nce3 Nab5 Rf2 Be2 Nef1 Bd1 Rg2 Bge3 Rg3 f2 Rf3 Kb1 Rf8 Kc1 Re8 Bf3
RbR4B/3R4/n3K1Pp/5Q1P/1N4Rp/kbb1nBnn/3RNN1P/q6q w - - 0 1 illegal: No proof kernel
4Bn2/4Bp1b/N4r1p/NP1n2PR/2B1K3/1QP1BR2/2pq1q1r/4kBbN w - - 0 1 legal: proof: f4 b5 h4 e5 a4 g5 hxg5 d5 axb5 exf4 Na3 c5 Nb1 Qa5 c4 Qc3 cxd5 c4 Rh2 Qe3 Rh4 c3 Rh5 c2 Rh1 Qc3 bxc3 Ke7 Rh5 Kd7 Rh1 Ke8 Kf2 Kd7 Kf3 Kd6 g4 Kc5 e4 a5 d4+ Kb6 e5 a4 d6 Ka5 d5 a3 e6 h6 g6 a2 d7 Ba6 d8B+ Ka4 g7 Kb3 e7 Nc6 e8B Nd4+ Ke4 f3 d6 f2 g5 Bc8 d7 Bc5 Be7 Ra6 d8N Ne6 Nc6 Nf8 Nb4 Rf6 Ne2 Kc4 Na6 Bd4 Rh5 Bf5+ Kf3 Ba7 Nd2+ Kd3 Qe1 Bd4 Nc4 Bh7+ Bf4 Ba7 Na5 Bb6 Rb1 a1Q Rb4 Qa3 Qb1 Qc1 Qb3 Qd2 Re4 Ba7 Re5 Bd4 Rf5 Bc5 Be3 Ba7 Bd8 Ne7 g8B Nd5 Be7 Bd4 Bh3 Bb6 Ng3 Ba7 Nh1 f1Q+ Kg4 Ke2 Rf3 Qf2 Bf1+ Ke1 Bc4 Be4 Bh7 Rg8 Bf5 Bd3 Bfd7 Bh7 Bf5 Rgg6 Bfd3 Re6 Bf1 Rgf6 Bf4 Re2 Be3 Rg6 Kf5 Rf6+ Ke5 Qh4 Rf5 Rh2 Rf3 Bb6 Bf4 Bg1 Be3 Rg6 Kf5 Qhf2 Ke4 Rf6+
2kNB1Q1/2Npb3/2P1N1Kq/R4np1/brq1N1N1/3RB2p/P5P1/2r3Rn w - - 0 1 legal: proof: h4 b5 d4 c5 dxc5 a5 b4 g5 e4 f5 exf5 Qb6 h5 Qg6 hxg6 axb4 c4 Ra4 cxb5 Ra8 Kd2 Kd8 Kd3 h5 Ke4 e5 f4 b3 g7 b2 b6 h4 c6 h3 b7 Na6 b8N Nh6 g8R Nc7 f6 Na6 f5 Kc7 f7 Ra7 f6 Bc5 f8N Nf7 Kf5 e4 Nc3 b1Q Bd3 e3 Kg6 e2 Ne4 e1Q Be3 Qeb4 Qb3 Qc4 Nf3 Be7 Ne5 Nc5 Rg1 Ra5 Ng4 Nh6 f7 Nf5 Na6+ Kd8 Nc7 Ba6 Rd1 Kc8 Rd2 Qb2 Rg1 Rh4 Rh8 Bb5 Nfe6+ Bd8 f8N Be7 Bb1 Ba4 Nd8 Nd3 Nfe6 Nf2 Rd3 Rc5 Rf8 Nh1 Rf6 Nd6 Rf5 Qh8 Re5 Nf5 Bc2 Qa6 Bd1 Rc2 Ra5 Qc4 Ne5 Qc3 Nd2 Rd4 Kf7 Bc5 Nf8 Rc1 Ne4 Bd6 Bh5 Rc4 Ng4 Rb4 Qe6 Bb5 Qg6 Be7 Qg8 Qc4+ Nfe6 Ba4 Bg6 Qh4 Bh5 Bc5 Kf6 Bf8 Be8 Be7+ Kg6 Qh6+
2R1qk2/1K4bQ/n3P1P1/N1RppbN1/2qNNqpr/3PB2B/N2n2R1/8 w - - 0 1 illegal: No proof kernel
4b1NB/nk1r3R/1PNQ1R2/1pRn1B2/4P1nB/p2pr3/3P4/1RbrKR2 w - - 0 1 illegal: No possible last move, all moves rejected
4bb2/kn4pp/1b1P3B/3Q1N2/1r1P1BR1/bpRBP1BN/2B1KNr1/2q5 w - - 0 1 illegal: No proof kernel
QN1Rbr2/p1bn1rB1/4R1Rp/2RP1b2/2pN1R2/P1knBK2/P2b4/5N2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 hxg5 Be6 c4 Qd6 Bd3 Qa3 bxa3 Bd7 cxd5 Bb5 Bf1 Bxf1 f4 Kf7 Kf2 e5 d4 c5 g4 b5 f6 h6 g6+ Ke8 f5 Kd7 f7 Kd6 g5 c4 f6 e4 g7 e3+ Kf3 e2 g6 e1B Be3 b4 Ne2 b3 Rh5 b2 Nd2 Be7 f8R b1B f7 Bh3 Nf1 Nf6 g8N Bd8 g7 Nh7 Ne7 Bc7 g8R Bhf5 Nc6 Bbc2 Rg6+ Nf6 Re8 Rh7 f8B+ Re7 Bg7 Na6 Nb8 Bea5 Qd3 Bb3 Qe4 Rf7 Re1 Bb4 Rf8 Bd2 Qe8 Ba4 Qc6+ Ke7 d6+ Ke6 Rhg5 Nb4 d7+ Bd6 d8R Nd3 Qb7 Be8 Rh5 Bc7 Rhg5 Bh3 Rc5 Bf5 d5+ Ke5 Nd4 Bfd7 Na6 Bf5 Re2 Rb8 Qa8 Rc8 Kg2 Ke4 Nb8 Nd7 Re1 Nf2 Re2 Kd3 Kf3 Kc3 Bf4 Nd3 Ree6 Re7 Be3 Bh3 Rf4 Bf5 Na6 Rb8 Rg5 Rf7 Rgg6 Rb1 Nb8 Rb6 Ree4 Rbf6 Re5 Rf8 Re6 R6f7
N2BRNQ1/1p5B/1Bk2q1p/3b1RN1/1bNn1pqP/1P1Np3/1nPn1K2/8 w - - 0 1 legal: proof: d4 a5 f4 g5 fxg5 d5 e4 c5 Be3 a4 Bd2 h6 Bc1 Ra6 b3 Rd6 dxc5 d4 Be2 Rd5 exd5 Rh7 Bf1 Rg7 Nf3 Rg6 Ng1 Rb6 Qe2 axb3 Qd1 b2 Qf3 Nd7 Qd1 Rb3 axb3 Nb8 h4 Kd7 g4 f5 c6+ Kd6 c7 e5 g6 f4 g7 d3 g5 d2+ Kf2 Qd7 g6 Qa4 Nf3 Nf6 g8N Qb4 g7 Bd7 c8N+ Kc7 d6+ Kc6 Ne1 Be7 Nb6 Qc3 Bd3 Nh5 Ra5 Bc8 d7 Bf8 d8B Be6 Bh7 Kd6 Qg4 d1Q Be3 Ng3 Ne7 Nf1 g8N Bd5 Na3 b1N Na8 Nbd2 Nf6 Qd4 Qg8 Nc6 Nd3 Nc4 Ng6 Nfd2 Re1 Qg4 Ne4+ Kd7 Ng5 Nb2 Re2 Bb4 Nc4 Qb6 Bc5 Nd4 Nf8+ Kc6 Re1 Qc7 Bb6 Qe7 Rd1 e4 Rb5 Bf7 Rf5 Qf6 Ra1 Be6 Raa5 Bf7 Rae5 Bd5 Re8 e3+
1B3b1K/3NPb1Q/n1kBNqBq/5rPn/6Rb/5rN1/4N2P/r2R1Nnq w - - 0 1 illegal: No proof kernel
N2b2bk/1Bn2n2/2bP1b2/QR1r1bP1/3RB1rr/P2B1n1N/1KBN3q/2B5 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 d4 f5 Kd2 Kf7 Kc2 Kg7 e4 h5 g4 b5 e6 c5 e7 h4 e8B c4 d6 h3 e5 h2 d7 c3 g6 b3+ Kd3 c2 Kc3 b2 g5 b4+ Kb3 f4 e6 f3 e7 f2 a3 Rh4 d5 Nh6 d6 Nf7 Qd3 Na6 Ra2 Nc7 Qe2 Ra4 Qe1 Kh8 Bd3 f1R Nd2 b1B Kb2 b3 Nh3 Rf5 Qe5+ Bg7 Rd1 h1B Qc3 Re5 Qa5 Bf6 Ra1 Ba2 Rb1 Rag4 g7+ Kg8 Be4 Bg2 Bb7 Kh7 g8B+ Kh8 Bh7 Bc6 Bd3 Rd5+ Qc3 Ne5 Beg6 Nf7 e8B Qe7 d8N Bf5 Rg1 Qe5 Rd1 Be7 Ne6 Bd8 Ng7 Qh2 Qa5 Qg2 Ne6 Qh2 Kc3 b2 Bh7 Na6 Nc7 Bb3 Na8 Nc7 Ra1 b1N+ Kb2 Nh6 Beg6 Nf7 Nc4 Nd2 Rb1 Nf3 Be4 Be8 Rd4 Bc6 Nd2 Bc4 Kc3 Ba2 Rb5 Bc4 Bb2 c1B Bc2 Bfd7 Bgd3 Ba2 Bhe4 Bf5 Nb3 Bf4 Nd2 Be5 Bc1 Bef6 Kb2 N7e5 Qb4 Rc5 Nf1 Bg8 Qa5 Rd5 Nd2 Nf7
4B3/kn1BN1Qn/7b/NqRPnBnP/B2n2br/1r1R2q1/P2BR3/b2K4 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 h4 Kd7 e4 f5 d4 c5 e6+ Kc7 e5 g5 e7 b5 e8B Kb7 d6 b4 a6+ Ka7 e6 c4 e7 f4 d7 b3 d5 g3 Nf3 c3 Qd2 g4 Rh2 b2 Bd3 c2 Rh3 g2 Qd1 g1N Na3 b1N Bb5 g3 Ne5 f3 Qe2 g2 Rg3 Nh3 Qc4 g1N Ng6 Nd2 Qa4 Bh6 Nc4 Nf6 Na5 Ne2 Qg4 Nc6 Ba4 Nde4 Bd2 c1B Kd1 f2 Rd3 Bb2 Rc1 Ned4 Rc5 Qc7 d8R Qg3 Bd7 Nd6 e8B Ng5 Bf5 Ba1 Ne7 Ne5 h5 Nb7 Rd6 Nfh7 Re6 Rb8 Bed7 Rd8 Be8 Rd6 Bed7 Rb6 Be8 Rb4 Bed7 Ne4 Qg7 Neg5 Be8 Ng6 Re2 Ne5 Be4 Bg4 Bf5 Kb6 a7 f1Q+ Be1 Rc4 a8B Ka7 Bad7 Nd8 Bac6 Rb3 Ba4 Nb7 Be4 Qf6 Bc3 Qa6 Bd2 Qb5 Bef5 Nde6 Bc6 Re4 Bcd7 Nd4 Bfg6 Be6 Bf5 Rh4 Bfg6 Bh3 Bgf5 Bg4
N1K1N1r1/1B2P2Q/N1q1nRB1/5b2/1BbR3B/2bP2b1/1q1P1Bbk/2n2r1r w - - 0 1 legal: proof: f4 b5 h4 d5 a4 e5 axb5 g5 hxg5 exf4 Nh3 d4 Ng1 d3 cxd3 Ke7 Na3 Kd7 Nb1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 b6 f6 b7 h4 g6 c4 g5 h3 g7 f3 g6 c3 b5 c2 b6 a4 Na3 h2 Nc4+ Ke6 Ba3 c1B Nh3 f2 Bg2 f1B Nf4+ Kd7 Kd5 f5 e4 Nc6 b8B Na5 e5 Qf6 b7 Nh6 g8N Nf7 g7 Ng5 Qh5 Bb2 Ba7 Bc3 b8B Bd6 Bf2 Nb3 Qh7 Nc1 Ne6 f4 Nc7 f3 Na6 Ne6 Bb4 a3 Bba7 a2 Bh4 Qg6 Baf2 Qh6 Rg1 h1B Nf6+ Ke7 Rb1 a1Q Kc6 Qb2 Nb6 Bd7+ Kb7 Rag8 Ne8+ Qf6 Be3 f2 Na8 Kf7 Bc6 Bd5 Rg4 Bfg2 Rd4 f1R Bef2 Bc4 Bf3 Ng5 Ra1 Bf5 e6+ Ke7 Kc8 Qh6 Nc5 Bg3 Ra6 Qf6 Bb7 Qg6 Rd8 Qh6 Rad6 Qf6 Na6 Qh6 Nec7 Kf6 Ne8+ Ke5 Rb6 Kf4 Rd4+ Bfe4 e7 Ne6 Rc6 Kg4 Rb6 Kh3 Rc6 Bf5 Rcd6 Rf8 g8B Kh2 Bf7 Rhg8 Bg6 Rh1 Be1 Bfh3 Rb6 Rff1 Bf2 Bf5 Rd7 Ng7 Rf6 Ne6 Rd8 Qh5 Rd6 Qf3 Rd4 Qc6+
3bKbBr/R2n4/2bk3N/Br1bNQbP/1bbB4/PB1q4/P1R2B2/2Rn4 w - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 h5 g3 a4 g4 a3 bxa3 hxg4 Kf2 Ke7 Ke3 b5 Kd4 g5 Kc5 f5 h4 b4 e4 g3 d4 g4 h5 b3 e6 g2 e5 c6 d6+ Ke8 e7 Kd7 e8R g3 d5 f4 Rh2 b2 Ne2 g1B+ Nd4 g2 Qd3 f3 Be3 f2 Nd2 b1B Nf5 Ra7 Nh6 Bb7 Bd4 Ra6 Nc4 Rb6 Be2 f1B Bd1 Ba8 Bb3 Nf6 Qe4 Bc2 Rc1 Ng4 Qg6 Nf2 e6+ Kc8 e7 Kd7 Qf6 Nd1 Qg5 Be4 Ne5+ Kc8 d7+ Kc7 Qf5 Bc4 Nf3 Bf2 Ne5 g1B Rg2 Bh4 Rgc2 Bh2 Bf2 Bf4 Bd4 Bd2 d6+ Kb7 Bf2 Bed5 Bd4 Bg7 Rg8 Bf8 e8B Ba5 Rg7 Bd2 Bf2 Bb4+ Kd4 Rb5 Bf7 Bg5 Bg8 Kb6 Nef7 c5+ Ke5 Kc6 Rh7 Qc8 d8B Qa6 Bb6 Bd8 d7 Bb7 Ba7 Kc7 Bd4 Bbc6 Bf2 Be2 Rg7 c4 Bad4 c3 Rh7 Bdf3+ Ke6 Bc4+ Qd5 Bg2 Ne5 Be4 Kf7 Bg2 Rb2 c2 Ke8 Bf3 Qe4 Kd6 Qf5 Bg2 Rcb1 c1B Rc2 Bcg5 Rbc1 B6d5 Re7 Bb6 d8B Nd7 Bc3 B6a5 Bdb6 Bge4 Bbd4 Bd8 Bd2 Nc5 Ra7 Nd7 B2c3 Bg2 Bb6 Bc6 Ba5 Bgd5 Bb2 Qb6 Ba1 Qe3 Bd4 Qd3
N4r1b/n1BQ1b2/R1Rr4/5Nk1/1RK2q2/2B1q1PR/Pb1b1r1P/1R1qnB2 w - - 0 1 illegal: No possible last move
1B5K/bqqN2Q1/BN1bk1bB/rBn5/6R1/R2qPq2/1Pr3PR/r3B1n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 a5 d4 h4 d6 f3 d5 h3 b6 c4 g6 a4 g7 f2 b7 c3 Qe1 c2 Qb4 h2 Qc4 a3 Bd2 c1B Bc3 a2 Na3 Na6 b8B Nc5 Be1 Ra5 Nf3 Ne7+ Kf6 Be3 g8B Qc7 Qg4+ Nf5 Qg7 Ng3 Nc4 Rh4 Bh7 Rd4 Be4 Rd2 Bd3 Rc2 Nb6+ Ke8 Rb1 a1R Ba6 Bf5 Ne5 Bg6 d7+ Kd8 Rd1 Bd6 Rd3 Bd4 e3 Ne2 Ra3 Ng1 Bfb5 f1Q+ Kg5 Ke7 Kh6 Qf5 d8R Qf3 Rg8 Qb7 Ned7 Qc7 Qh8 f5 Qe5+ Kf7 Qh8 f4 Qe5 Be7 d6 Bf8+ Qg7+ Ke6 Ne5 Qcb7 d7 Bd6 d8B Qc7 Ned7 Qfb7 Ba4 f3 Bg5 f2 B4b5 f1Q Bf4 Qff3 Bg5 Bh5 Kh7 Bg6+ Kh8 Nb3 Nd5 Ba7 N5b6 Nc5 Bh6 Ne2 Rf1 h1Q Rg1 Qhh3 Rh1 Qhf5 Rh2 Q5e4 Rf8 Qd4 Rf4 Ng1 Rg4 Qd3
1q1N1b2/bn1B1q2/B5bR/rR4n1/rB3PP1/B1Bn2b1/PNQNk1q1/7K w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 g4 Kd6 f4 h5 Kf2 b5 Kg2 c5 f6 e5 g6 b3 g7 e4 f7 b4 Rh4 e3 Rh2 c4 Qd2 b2 Kh1 h4 Kg2 b3 Be2 c3 Nf3 c2 Qd1 h3+ Kh1 Ra4 Nbd2 b1Q Ba6 b2 Bc4 e2 Nb3 e1B Qe2 Qc7 Kg1 Nd7 Rf2 h2+ Kh1 Nh6 g8B Nc5 Nfd2 Bf5 Ba6 Bg6 Na5 Nb7 Rf3 Qb6 Rb3 Bg3 Rb5 Rh7 Nc6 Qc7 Nb4 Qe7 Qg2 Qe3 Nd3 Qf2 Nf1 Ra5 Bd2 c1B Bc3 Qbc2 Nd2 b1Q Nb2 Qb3 Qe4 Ra4 Qe2 Qf5 Qd3 Qc8 Qc2 Qb8 Rb1 Nf5 Ra1 Ng7 Rb1 Rh5 Bh7 Be7 f8B Ne6 Bg8 Ng5 Be6 Qc4 Bd7 Qcc7 Nf1 Be3 Nd2 Qcc8 Rf1 Qe8 Rb1 Qf7 Rb6+ Kc7 Re6 Bb4 d6+ Kb6 d5 Kc5 Be7 Ba3 Bb4+ Kd4 Rf6 Bd3 Rh6 Bg6 Bf8 Qe2 Be7 Bef2 Bf6+ Ke3 Bfc3 Bg1 Bc6 Qf2 d7 Qbf8 d6 Qb8 Ba5 Bc5 d8B Ba3 d7 Bf8 Nbc4+ Ke2 Be7 Ne6 Bab4 Rha5 d8N Ng5 Bd7 Qe3 Kg2 h1N Rb3 Nf2 Nb2+ Nd3 Kh1 Qf2 Ba3 Qe1 Rb5 Ba7+ Kg2 Qf2+ Kh1 Qg7 Bed6 Qf7 Bdb4 Qg2+
Rq4n1/r5N1/R1N2P1B/Bkb1rn1q/4BB2/2PP1q2/1b2K2b/nQ1BR2b w - - 0 1 illegal: No possible last move, all moves rejected
N2RB3/Kb1PkN2/2P4Q/4bbrq/1rPB4/1R1qr1NN/3bn3/nN3Bq1 w - - 0 1 illegal: No proof kernel
1B1r4/1P1q1Rb1/1n3PRP/1b2R2B/1Nb2Qnr/3Rrr1q/3qR1NN/3K2k1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 Kf6 b4 a5 c4 d5 b6 g5 h6 e5 h7 e4 c5 a4 h5 a3 b7 g4 c6 a2 c7 d3 b5 e3 b6 e2 Nf3 d4 Qa4 g3 Nc3 g2 Rg1 Nd7 b8N Nh6 b7 Bg7 Nh2 Nb6 Nd1 Qd7 Nc6 Ng4 Nb4 Rb8 Kd2 e1R Ne3 Rd8 Rb1 a1R h8R Ra3 Rb2 Re2+ Kd1 d2 Re8 Rc3 Nec2 Rf3 Ne1 Ree3 Re5 Ra8 h6 Ra5 Rh1 g1Q Be2 Qg3 Rg1 Qh3 Ng2 Rc5 Rb3 Rc4 Bb2 Qe7 Ra3 Bd7 c8R Bb5 Rd3 Qd7 Rc7 Qe8 Rce7 Qd7 Na6 Rb4 Ba3 Rc4 Bd6 Rb4 Bb8 Bc4 Kc2 d1B+ Kc1 Bc2 Re8 Bb1 Kd1 Bb5 R8e7 Ba2 Re8 Bac4 R8e6+ Kf7 f6 Kg6 f5+ Kh5 f7 Kg5 f8R Kh5 Rd2 d3 Rf7 Kg5 Rd6 Kh5 Rb2 d2 Rd3 Kg5 Qa3 Ra4 Qd6 Kh5 Nb4 Kg5 Nh4 Kf4 Ng2+ Kg3 f6 Kf2 Qd4 Qg3 Qf4 Qh3 Nh4 Nd5 Rg3 Nb6 Ng2 Kg1 Kc2 Nf2 Rg6 Ng4 Kd1 Rf2 Ree7 Be6 Qd4 Ne5 Nd5 Rff3 Kc2 Rf4 Bh5 Rf3 Qh4 Rae4 Nb4 Bec4 Qg3 Rh4 Qf4 Ng4 Re5 d1Q+ Kc3 Be6 Re2 Qe1+ Kc2 Qc3+ Kd1 Bec4 Qg5 Qb2 Qf4 Qd2+
3N2bb/P1r2Qq1/nn1Bb1K1/kn2R2B/1R1NNr2/rRP2R2/b2q2RP/8 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 b5 Kd3 e5 Ke4 g5 f4 d5+ Kd3 Kd7 a4 Kc7 c3 b3 a5 d4 Ke4 b4 f6 g4 a6 g3 f5 d3 c6 Kb6 h6 g2 c7 d2 f7 b2 f6 b3 h7 Bg7 f8R Ne7 f7 Nd5 Qh5 d1B Nf3 g1R Be2 Rg4+ Bf4 Be6 Nbd2 b1N c8R b2 Rc5 Na3 Nd4 Bb3 Rhb1 Nb5 Rg8 Qf8 Ra4 Ra7 Bd1 Rc7 Rb4 Ka5 a7 Na6 Qf5 Nb6 Rd5 Rg1 Bh5 Bf6 Rg2 Rh1 Ke3 e4 Bd6 Rc1 Kf4 e3 Rc5 e2 Ne4 e1Q Re5 Qd2+ Kg4 Bg7 Kh4 Rg8 h8N Rf1 Qh7 Rf4+ Kg5 Bbc4 Kg6 Bb3 Rf1 b1B Rf3 Bbc4 Rb3 Ba2 Rb4 Qe7 Rb3 Rb8 f8R Bcd5 Rff5 Qf8 Nf7 Bh8 Nd8 Bg8 Rfg5 Bde6 R5g4 Rf5 Nf6 Rbc8 Rb1 Rc4 Qf7 Ra4 Rb3 Rc7 Nc2 Ra3 Rgb4 Rf4 Nd4 Rc4 Ne4 Rc5 Nf2 Rc7 Ne4 Qg7+
n2r1bnN/P2N1r2/2bQ4/b2B1q1k/B1B2P1B/2r3KR/6P1/1nN1rqBR w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 a4 Kf7 c4 b5 f4 d5 Kf2 e5 c6 h5 f6 Kg6 c5 d4 a5 d3 f7 e4 a6 e3+ Kf3 b3 c7 h4 c6 b4 a7 d2 Nh3 b2 Nc3 b1Q Ne2 b3 Ra3 Kh5 g6 b2 g7 Bd7 c8N Na6 c7 Rh7 Nb6 Qg5 c8B Qgf5 Ng5 h3 Kg3 Bc6 Bd7 h2 Be8 Rd8 Nd7 Nc7 Rd3 Ne7 g8B Na8 Rc3 Qbd3 Rb3 b1N Rc3 Bh6 f8B+ Rf7 Ba3 Qa6 Nc1+ e2 Bc5 Qb5 Rf3 e1B+ Bf2 Rc8 Bc4 Rd8 Bd5 Qf1 Bg7 Rc8 Bd4 Rd8 Qe2 d1R Qe5 Bf8 Qd6 Rd3 Bf6 Ba5 Bg1 Rd2 Rc3 Rc2 Rd3 Kh6 Rc3 Rh7 Nf7+ Kh5 Nh8+ Rf7 Re3 Rc3 Bh4 Rc2 Bh7 Ng8 Bc4 Qe6 Be4 Qf5 Bed5 Be7 Nf8 Rb2 Bf2 Bb5 Kf3 Rc2 Rg1 h1R Bec6 Qe1 Nd7 Bf8 Ra3 Ba6 Ba4 Bb5 Bb6 Bc6 Rf1 Bd2 Bd4 Qd1+ Kf2 Rg1 Rh3 Ba5+ Kg3 Qe2 Rf3 Rd1 Rf1 Re1 Rfh1 Qf1 Bg1 Rc3+
b1b3NN/2KP1QNP/2R1Bn1B/q1b1k3/nBr1B1b1/b1rP3B/R6n/6b1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg3 c5 Kf4 f5 e4 b5 a4 c4 h4 b3 d3 g6 d6+ Ke6 d7 b2 h6 b4 a5 c3 h7 c2 a6 b3 h5 Nh6 a7 Be7 Nd2 b1B Qf3 b2 Ne2 Rf8 h8B Nc6 Bh3 Ng8 h6 Bc5 h7 Qa5 Ra2 Nf6 Qf2 Rb8 a8B Rb3 Bg7 Na7 Bh6 Rc3 Qf3 Nb5 Qf1 Ke7 e6 g5+ Ke5 g4 Nf4 g3 Rh2 g2 Ng6+ Kd8 e7+ Kc7 e8B g1B Bb7 f4 Bf7 f3 Nh8 f2 Bfe6 Rc4 Rg2 Nc3 Rg6 Na4 Bbd5 Rg8 Bf8 Rc3 Rh6 Rg4 Rg6 Ba7 Bb4 Bc5 Bc6 Ng8 Kd5 Rf4 e5 Rfc4 Qe2 f1B Qf3 Be2 Qf7 Bf3+ Ne4 Bg4 Bf4 c1B Nf6 Bc2 Bh6 b1N Ba8 Bcd1 Bb7 Nd2 Ba8 Kb8 Kc6 Ba3 Bb7 Nf1 Ba8 Bb6+ Kd6 Nh2 Be4 Ne7 Ng8 Nd5 B6f5 Ba7 e6 Nf6 e7 Bdf3 e8N Bh1 Be6 Bg2 B4f5 Ba8 Ng7 Bab6 Ke7 Kc7 Be4 Nh5 Ke8 Bbc5 Rf6 Kd6 Rg6 Qa6 Kd8 Ke5 Kc7 Qb5 B6f5 Qa6 Rc6 Nf6 Be6 Qa5+
N2r1RK1/r5R1/4r1P1/2BNbR1Q/N1P1r1P1/2nqr3/b4nkq/RB1R3r w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 e5 Ke4 d5+ Kf3 a5 Kg4 h5+ Kh4 d3 b4 d4 g4 a4 f4 d2 b6 a3 c3 a2 f6 Ke6 b5 Kd5 f7 Ke4 f5 d3 b7 Bg7 f8N Nf6 b6 Be6 g6 Ra3 Kg5 h4 Qc2 d1Q Be3 h3 Bc5 h2 Ne2 Kf3 Nd7 e4 Nf4 d2 Nd5 e3 Bd3 Nc6 b8R e2 b7 e1R N7b6 Ne5 Na8 Qc7 Rf8 Re4 b8R Kg2 Rb7 Qd6 Rf1 h1R Qb3 Qe2 Qb5 d1R Rd7 Rd2 Rd1 Bg8 Bc2 Qd3 Re7 R8h2 Ra7 Bh8 Rg7 Ra6 Qa5 Rh3 Qb5 Rhe3 Rff7 Nh5 f6 Ng3 Rf8 Be6 f7 Ne2 Kf6 Qc7 Na3 Qb8 Nc4 Rc6 Nb2 Rb6 Rab1 a1R Na4 Ra2 Ra1 Rc6 N4b6 Ra7 Na4 Rd6 Bb1 Rc6 Ndc7 Ba2+ Ke7 Rd6 c4 Rd8 Ke6 Nc3 Nd5 Qc7 Rfg8 Rde2 f8R Qb8 Rgf7 Qc7 Rf5 Qh7 Rg7 Qh2 Ne7 Nf3+ Kf7 Ng5+ Kg8 Nh3 Nd5 Nf2 Qb2 Re6 Qc1 R3e4 Qg5 Ree1 Qh5 R1e3 Rc7 Bd4 Rg7 Be5
4brkb/Q2B3r/KN1B1b2/2Rn2q1/2RnRR2/b2RB3/2n1PP1P/3n1r1N w - - 0 1 illegal: No proof kernel
1kq4B/1bNB1n1q/1rR4q/N1KBQR2/4nbbB/P2P3r/1P2b3/q3B1R1 w - - 0 1 illegal: No proof kernel
B1rbB2b/6R1/r1n4r/1b1k3P/1B1b2Q1/q1PnP2B/3KRqN1/B3NR1r w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 b4 Ke7 h4 Ke6 c3 f5 h5 g5 c6 d5 b6 a5 c7 d4 b5 g3 b7 d3 b6 g4 Nd2 g2 Ne4 g3 Bg5 a4 Be7 a3 Kd2 f4 Qc1 a2 Ng5+ Kd5 e6 f3 Rh2 f2 Qd1 Bg7 N1f3 g1B Ba3 g2 e7 Qd6 e8B Bd7 c8B Bb5 Bb2 Na6 b8R Nb4 b7 Rh6 Ne1 Bh8 Bh3 Ne7 Ngf3 Nec6 Nh4 Qc5 Rb1 a1R Rc1 R1a7 Ba1 Ra6 Rc8 Qa7 Rc7 Rc8 b8B Qc5 Rg7 Qf8 Ke3 d2 Bd6 Nd3 Bb4 Qd6 Qa4 d1R Rb1 Rc1 Kd2 Qe7 Rb2 Qd6 Rh1 Bh2 Ra2 g1B Nhg2 Bg3 Qd1 Bh4 Qa4 Bd8 e3 Bh2 Be2 Be5 Rf1 Bd4 Qd1 Qc7 Beg4 Qa5 Bgd7 Qa3 Qg4 Rca8 Bc8 Rb1 Bb7 Rc8 Rg1 f1Q Ba8 Qf3 Rc2 Rb3 Rf1 Qf2+ Kd1 Rb2 Re2 Rb1+ Kd2 Ra5 Rh1 Ra7 Nc2 Rg1 Nce1 Ra6 Nh4 Rg3 Rf1 Rg1 Nhg2 Rh1
3N1R2/2B1R2B/1b2K1Nr/bP3q2/Nb1qPP1n/q3q3/3Nb3/BnkNQ1r1 w - - 0 1 illegal: No proof kernel
3b1R1R/2B3P1/k1bR2Nr/1nq1b3/KPr1N2r/5N2/bP1nNr1Q/N2B1q2 w - - 0 1 legal: proof: h4 d5 e4 b5 c4 g5 cxd5 gxh4 a3 f5 exf5 b4 axb4 Ba6 Qe2 Bb7 Qd1 Bc8 d4 Kd7 Kd2 e5 Kc3 h5 Kb3 c5 g4 Kc7 f4 Kb7 d6 a5 f6 a4+ Ka3 c4 f7 e4 g5 c3 f5 c2 g6 e3 g7 e2 d5 e1B d7 h3 d6 h4 f6 h2 Qd3 h3 Qb5+ Qb6 d8R Nc6 d7 Bc3 Be2 Be7 f8N Be5 f7 Rh6 Bd1 Na7 Ne6 Nf6 f8N Ne4 Nf3 Nd2 Qe2 Qc5 Nf4 Rb8 Rf1 h1R N8g6 h2 Rh8 Bd8 Nc3 Ra8 Qf2 Ka6 Nfe2 Rb8 Ne4 Nb5+ Ka2 a3 Rb1 Nb3 Bf4 c1R Bg3 Nd2 Qg2 Bdc7 d8N Rc4 Nb7 Be6 Na5 Rf8 Nb3 Bd8 Na1 Rf4 Rc1 Rfh4 Rf2 Rf1 Rb1 h1B Qh2 Bf7 Rc1 Bg2 Rc3 Bd5 Rd3 Bc6 Rd4 Bh3 Rd6 Be6 Nfd4 Bd5 Rff8 Rf2 Bf4 Nf3 Kb3 a2 Ka4 Nd2 Nf3 Be6 Nc2 a1Q+ Na3 Qc1 Nc2 Rd4 Na1 Ba2 Bg3 Rc4 Re6 Bd4 Bc7 Be5 Rd6 Qb1 Bb3 Qh1 Bd1 Qf1
2B1kq2/q1b3P1/nq1r4/NN3Pr1/3NB2K/2R4N/NR1P1nb1/1r1QBqr1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 g4 a5 f4 e5 Kf2 c5 Kg3 h5 b4 e3 b6 e2 d6 e1R b5 a4 f5 e4 b7 a3 b6 c4 g6 a2 g7 c3 d7+ Ke7 g5 e3 g6 e2 Nh3 c2 Kh4 Rh7 Bg2 Nf6 g8B Ra6 g7 Rg1 Bb2 e1R Na3 c1Q Be6 Ng4 Nb5 Qc5 Be4 Nf2 Rc1 a1Q Bd4 Rh6 Be3 Rhg6 Rc3 R6g5 Bd4 Qdc7 d8N Ke8 Nc6 Bd6 Nb4 Bf4 Be3 Qf8 Na2 Qcc5 Bd4 Bc7 Be5 Bd7 Bg3 Bc6 Bc8 Qe3 Qc2 Rb1 Qd1 Nd7 b8N Nc5 b7 Rb6 Rd3 Na6 Rc3 Bd5 Nc6 Qd4 Ncb4 Rd6 b8N Qb6 Nc2 Ba8 Nc6 Bb7 Na5 Ba8 Bd3 Bg2 Rc6 Qad4+ Be4 Qa7 Rc3 Qdb6 Ncd4 Rf1 Qc2 Rb2 Qa4 Nd3 Nf4 Ra1 Rhc1 Rb3 R1c2 Rg1 Bf2 Rbb1 Bg3 Bf3 Kh3 h4 Rb2 Bh1 Kh2 h3 Be1 Nf2 Qd1 Rf1 Qg4 Bf3 Kg3 h2 Kh4 h1Q+ Nh3 Qg2 Ra3 Rg1 Rc3 Qf1 Qh5+ Rgg6 Qg4 Bg2 Qd1 Rg5
1R3KB1/b1r3Pr/RP2r3/N5Q1/1B3P1R/b1qn1R2/n1bq3R/NbN1kr2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 b3 a4 b6 c4 f6 a3 b7 a2 f7 h3 g5 h2 d6 c3 g6 h4 d7 c2 Ke6 h3 g7 Ra6+ Kd5 e5 Na3 Kc3 b4 e4 b5 e3 Qg4 e2 Qg5 e1B Bc4 Nc6 Ke6 Nge7 b8R Rh7 d5 Ne5+ d6 Bf2 Be3 c1R Bc5 Kd2 Bb4+ Kd1 Nc2 Nd3 Ne2+ Bg1 Bb3 Nc6 Bd5 Be7 f8R Bb7 Kf7 Rb6 Ba3 Ncb4 Rh8 Bc6 Bc4 Be4 Bb3 Rc6 Bd5 Qa5 d8N Rb6 d7 Re6 Nc6 Kd2 d8R Ba7 Re1 h1R b6 h2 Rf1 Bf8 Rf2 Rhf1 Rf3 h1B Bc4 Qd5 Na5 Bg2 Bb3 Bh3 Rdc8 Bhf5 Rc3 Qd4 Rh3 Qe3 Rh2 Kd1 Rh4 Qd2 Bd5 Nf2 Rf3 Nfd3 Rb1 Be7 Na1 Ke1 Rb2 Rc7 Nc1 Nf2 Ra8 Bb1 Rhb8 Bfc2 Bc4 Nfd3 Ke8 Nd5 Bb4 Nc3 Bd5 Re3 Bg8 Re6 Na1b3 a1Q Ra2 Qb2 Na1 Qa3 Rb2 Na2 Kf7 Bd8+ Kf8 Qac3 Rc8 Bb8 Ra6 Ba7 Ra8 Bf6 Rb8 Bd4 Be7 Bc5 Bd6 Ba3 Bb4 Ba4 Rc2 Qd1 Rg2 Bac2 Rgh2 Qdd2
3bN3/2q5/K1B2B2/RbkP1R1q/Rq1prP1P/4NRr1/2n1R1n1/n1b2NQ1 w - - 0 1 illegal: No possible last move, all moves rejected
1nQ2R1r/4b2b/q4RqN/2P1k3/Bp1NbR1B/q3r3/N1PP3R/K1rR3n w - - 0 1 illegal: No possible last move
bBBRnB1N/B1Q3Nr/Bn6/P1RqR3/3k1K2/b1rP1P1p/1q4b1/2n4r w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 Kd6 a4 Ke5 g4 h5 f3 c5 a5 b5 d6 e6 f6 c4 g6 h4 f7 h3 d7 c3 g5 c2 g7 b3 g6 b2 Nc3 b1Q Na4 b4 Nc5 b3 Ba6 b2 d3 Bb7 Ne2 Nf6 g8B Rh7 g7 Ne8 Re1 Be4 Bd2 c1N Nf4 Qc2 Ra2 b1B Ng6+ Kd5 Bc8 e5 Ne6 Qb2 Qc2 Ba3 Qc7 Bc2 f8B Bd1 Nh8 Be2 Bdb4 Ra6 Bbc5 Rc6 Ba7 Bf1 Bf7 Rc5 g8R Rc3 Ra1 Bg2 Ba6 Qh4 d8B Nd7 Bde7 Qf6 Bd6 Nb6 Ng7+ Qe6 Bg6 Qd7 Bf5 Qc6 Bfc8 Qa8 Re2 Qb7 Kf2 Kd4 Kg3 Bd5 Ra2 e4 Kf4 e3 Rc2 e2 Ra1 Rc6 Rc5 e1R Rb1 Rh1 Ra1 Nb3 Re1 Nc1 Re5 Qa8 Qd8 Qb7 Bdb8 Qd7 Qc7 Qe6 Rb5 Rc3 Rc5 Ba8 Be7 Nf6 Rd8+ Qd5 Bf8 Ne8
RbrBBKb1/4n2P/6q1/2rN2QB/2NB4/nBPkN1qp/3q1P2/2nbR3 w - - 0 1 illegal: No proof kernel
4Qq2/2brP2q/3Rq3/2Prbr2/bB1np1K1/R3PRN1/4RnkN/2B3BR w - - 0 1 illegal: No possible last move, all moves rejected
1Brr4/2PP3R/3n3R/q2N2bP/1NBq2N1/Qb1n2b1/pK4kq/N1rN1R2 w - - 0 1 illegal: No possible last move
rr6/Rnp2QN1/1b1bKNB1/1P2B1nn/N1PP1R2/2r4q/2N1N3/b3B1qk w - - 0 1 illegal: No possible last move
1q2bBQN/pn2bRBN/1q6/k2B3r/2b2r1N/5KPP/P1n4r/1BnR3B w - - 0 1 legal: proof: e4 g5 b4 d5 Be2 dxe4 Bf1 c5 bxc5 h5 Na3 g4 Nb1 g3 fxg3 h4 Qh5 h3 gxh3 Qa5 Qd1 Qd8 Kf2 Kd7 c4 Kc6 d4 e5 h4 b5 h5 f5 h6 b4 h3 e3+ Kf3 b3 h7 b2 Qb3 f4 Bg2 e2 Nc3 b1Q Bb2 e1R Nd5 Ne7 Nf6 Nf5 d5+ Kc7 c6 Re2 c5 Bd7 Rh2 Ne3 Bh1 Nc2 Rf2 Be8 Bc3 Qb2 Rd1 Na6 Bd4 Be7 d6+ Kc8 d7+ Kc7 Qe6 Qdb8 Qg8 Q2b6 Rff1 Rh2 d8B+ Kc8 c7 Kb7 c8B+ Kc6 Ra1 Kb5 c6 Nc5 c7 Nb7 Bf5 Ka5 c8B e4+ Kg4 e3 Bce6 f3 Bd5 f2 Rad1 e2 Kf3 Na1 Bb1 Nb3 Bc7 Nc1 Bd6 Bd8 Bf8 e1N+ Ke3 Be7 Nf3 Nc2+ Ke4 Bd7 Nh4 Ba4 Kf3 Be8 Rfe1 f1B Re6 Bb4 Re7 Bc4 Rf7 Be7 Qg5 Rg8 h8N Rg6 Nh7 Rh6 Qg8 Rh5 Bdg7 Q8c7 Rd4 Rc8 Rg4 Qb8 Rd4 Rc6 Rd3 Rg6 Rd4 Rg4 Rd1 Rf4+
Rn2N1rr/pNn1B1NR/b2q4/bqN3Q1/2B1P1N1/2bR2q1/4P1P1/rk4K1 w - - 0 1 illegal: No proof kernel forced: bxLB
5RBR/1R1Qn3/br1b2qn/R3b3/1kP1nb2/2N3r1/KPp1PN2/3bBN1R w - - 0 1 illegal: No proof kernel
4NRN1/q3nb1Q/2rBkB1r/p3r2B/rBN3rP/2P4B/PR3n1n/b6K w - - 0 1 legal: proof: g4 e5 f4 exf4 Kf2 c5 Bh3 d5 Ke1 h5 gxh5 c4 Bf1 c3 bxc3 d4 Na3 d3 cxd3 Qd6 Nb1 Qd8 Kf2 Ke7 Kg2 b5 e4 f5 h4 g5 d4 a5 d5 b4 d4 g4 h6 b3 d6+ Kd7 h7 g3 d5 b2 e5 Na6 e6+ Ke8 d7+ Ke7 Ne2 Nb4 Na3 b1R Nd4 Qb6 d8N Nd3 Qc2 Nf2 Nc4 Rb4 Ba3 Qa7 Nb7 f3+ Kg1 g2 d6+ Kf6 d7 f4 d8B+ Ne7 Bc7 Ra4 Bb4 Bd7 Qb1 Rc8 Bcd6 Be8 Rh2 Bf7 Nf5 Rc6 Qd3 Bh6 Rb1 Bg5 Nh6 Re8 Rh3 Rh8 Kh2 g1R Rb2 Rg4 Qc2 Nd3 Rg3 f2 Kh1 f3 Bh3 f1N Ng8+ Kf5 Rg1 Nh2 Rf1 f2 Qb1 Bc1 Qc2 Ng6 e7 Ke6 e8B Ne7 Nc5+ Kf5 Ne4 Ke6 Qb1 Rc5 Nef6 Rc6 Rg1 f1R Qc2 Rf3 Rf1 Re3 Rf4 Bh5 Bg6 Re5 Ne8 Rc7 Rf8 Rc6 Be4 Bf7 Bg6 Bf4 Bh5 Bc1 Rb3 Bb2 Qb1 Ba1 Rb2 Nd5 Nh6 Rg8 h8B Ne7 Bf6 Rh8 Ng8 Rh6 Qc2 Ne1 Qe4 Nd3 Qh7 Nf2+
3q1n2/kbr3QK/PNB2BBR/PB2bnBp/2NR1n2/4r3/1b3R1P/b2b4 w - - 0 1 legal: proof: d4 a5 g4 b5 b4 f5 bxa5 e5 gxf5 Kf7 dxe5 Ke8 c4 bxc4 Kd2 c5 Ke3 d5 Kf4 Kd7 a4 Kc7 e4 Kb7 f6 h5 Kg5 c3 Kg6 c2 f4 c4 f5 d4 f7 d3 f6 d2 e6 c3 e7 Bg4 e8B Bc8 e5 Ka7 e6 Qb6 e7 Bb7 Ne2 Qd4 Bc6 Qd8 e8B Bd6 f8B Be5 f7 Rh7 Na3 Nh6 Nc4 Nf5 Nf4 Nd7 Qg4 d1B Be7 Rb8 Bd2 c1B f8R c2 Bf6 Bcb2 Nd5 c1N Ndb6 Nd3 Bdg5 Rc8 a6 Rc7 a5 Rh8 Ra4 Nf4+ Kf7 Rh6 Rh8 Nf8+ Kg8 g6 Qg1 Rhh7 Bd3 Rhe7 Rh6 Ba1 Bf1 Beb2 Bd3 Re3 Qg2 Be5 Rf1 Beb2 Rf2 Be5 Bh4 g5 Bg6 g4 Bhg5 g3 Qg1 g2 Rb4 Nd7+ Kh7 Bab2 Nd2 Ba1 Bdb5 Bab2 Rd4 Ba1 Qh1 g1B Ndc4 Bb2 Qd5 Ba1 Qf7 Nf8+ Kg8 Bb2 Qg7 Ba1 Rc2 Bf2 Rcd2 Be1 Rf2 Bec3 Kh8 Bcb2 Kg8 N8e6+ Kh7 Nf8+
1KR1Nkbr/1q1p1bn1/rN1P4/1r3Br1/1BBB1P2/B4n1R/P2r4/nQR5 w - - 0 1 legal: proof: h4 a5 e4 f5 exf5 g5 hxg5 Bg7 b4 axb4 c3 Bf8 Be2 b5 Rh2 b3 Bd3 b2 Qg4 b4 Rh1 b3 Qd1 Bg7 Bf1 Bd4 Qf3 Bc5 Qd1 Bb4 cxb4 Kf8 Ne2 Kf7 Ng1 Ke8 Ke2 e5 Kd3 c5 Ke4 h5 Kd5 c4 Kd6 h4 d4 e4 g4 e3 f4 e2 f6 e1N g6 h3 d5 h2 f7+ Kf8 b5 c3 b6 c2 b7 Qe8 Kc7 Rh7 g5 Ra6 g7+ Ke7 g6 Nf3 Bc4 Nh6 g8B Rg7 Ne2 Nf5 Nec3 Nc6 b8B Na5 Ne4 Kf8 Nbc3 b1R Ba7 b2 Na4 Bb7 Bd4 Nb3 Bh7 Qa8 Nf6 Rg8 Nb6 Ng7 Bd2 c1R Ne8 Rc2 B2c3 Rd2 Bb4+ Nc5 Qe1 Rh8 Qe4 Rg1 Rc1 Rg5 Qb1 Bc6 Ba3 Ba4 Bb4 Bb3 Ba3 Qc6+ Kb8 Qb5 Rhg1 h1R Rg3 Rhh5 Rh3 Qc6 Qa1 b1B Bb4 Bf5 Qb1 Be6 Ba3 Nf5 g7+ Ke7 g8R Ng7 f8B+ Kf7 Bcd3 Bc4 d6 Nb3 Bhf5 Na1 Be7 Bb3 Bc4 Qd5 Bd8 Qe4 Bg4 Rb5 Bh4 Rhg5 Bf5 Qd5 Be1 Qa8+ Kc7 Qb7+ Kd8 Qe4 Kc8 Ra7 Be2 Rd3 Nc7 Ra6 Beb4 Rd2 Kb8 Bbc4 Rd8 Bcd5 Ne8 Kf8 Bd3 Bg8 Rdc8 Bdf7 Bc4 Qb7+
1bRRr3/7b/N7/1pPn1R1N/q1kBR1br/2Bb2P1/PKB1r3/3n1QRn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 c6 Kf7 Kd2 e5 c4 d5 Kc2 b5 f4 h5 f6 Ke6 c5 b3+ Kc3 e4 g6 h4 g7 e3 c7 b2 g3 h3 f7 h2 Bc4 e2 Bb3 e1R Bd2 Rh4 Na3 b1B Nc2 Na6 Kb2 Nf6 g8R Nb4 Bc3 Ne4 Ne2 Bd6 f8R Nf2 Rg1 h1N Ba4 d4 f5+ Kd5 f6 d3 f7 d2 Nf4+ Kc4 Nh5 Ree4 Qe1 d1B Qf1+ Be2 Rg5 Nc6 Nb4 Ne7 Na6 Bg4 Re5 Bc2 Re1 Re3 Rg8 Bh7 Rf5 Be5 f8B Qd1 Bh6 Bd3 Bg7 Nd5 Rb8 Bd6 Bgd4 Be5 Rh8 Rg8 c8R Bb8 Bc2 Rf8 Bb1 Qa4 Bc2 Re7 Re4 Rg8 Ref4 Re2 Re4 Nd1+ Kb1 Rg7 Rhd8 Re7 Ka1 Re8 Kb1 N1e3 Kb2 Nd1+
bB2q1r1/rn1n2n1/Q1NRbRPK/3r1p1N/R7/2Rb1NP1/R2b1P2/4B2k w - - 0 1 illegal: No possible last move, all moves rejected
2qN1B2/P2BN3/n1Np4/K2nnB2/2BP1RBP/r1b1bbr1/1kr3Qn/5R2 w - - 0 1 illegal: No possible last move
k1BB2Q1/P3rp1N/N1qP2N1/K1b4P/bR3nr1/n4br1/4RNN1/4nBb1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 b5 a4 c5 h4 Kc7 e4 Kb7 h6 g5 e6 b3 Kc3 g4 d6 g3 h5 b2 d5 c4 Kb4 c3 e7 g2 e8N c2 h7 Ra7 e5 Qb6 e6 Ra8 e7 Be6 a5 Ra6 d7 Qc6 d8N+ Ka8 d6 Bg7 Rh4 Bd4 Na3 b1N Ra2 Bg4 Nh3 g1B Ne6 Bf3 Nf6 Ra7 e8B Re7 a6 Bc5+ Ka5 b4 a7 b3 Nb5 b2 Bd7 Na3 Nef4 b1B Nf2 Na6 Ng2 Nb4 Bg5 c1R Re2 Rc3 Bc8 Nbc2 Rb4 Ne1 Qd4 Ba2 Qg4 Bb3 Bh4 Ba4 Qg6 Nh6 Qg8 Ng4 Ree4 Bfd1 Qe8 Rg8 h8N Ne3 Nh7 Re5 Bd8 Rg4 Qg8 Nd5 Ng6 Rcg3 Re3 Bf3 Re2 Nb6 Bd7 Re7 Nc7+ Kb7 Na6 Ka8 Bf5 Nd5 Bc8 Nf4
bK4QN/P2PNN2/BP3nNn/rb1b1r2/2R1p1R1/b2k3N/2n1q2B/2r3R1 w - - 0 1 illegal: No proof kernel
3kbR1B/q1N4N/rR2B2q/4np2/qQ2Nq2/P4P1K/n3RqP1/R1br3R w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 h4 g5 hxg5 Nc6 cxb5 Nb8 b4 axb4 e4 c5 f3 d5 Kf2 h5 Kg3 f5 b6 h4+ Kh2 c4 e6 h3 e5 c3 a3 d4 g6 b3 e7 b2 g7 c2 b7 d3 Bd2 c1Q Bf4 d2 Bg3 Qa5 Qb3 d1Q Bh4 Ra6 Bf2 Bd7 Bd4 Nc6 Nc3 b1Q Qb4 Nf6 g8R Qbc2 Ne4 Nd5 Bc4 Nc3 Be6 Na2 Rg6 Bh6 b8R+ Nd8 Kg3 h2 Kh3 Qf2 Rf6 Qb3 Rb6 Nf7 Bc4 Qfe1 Nf2 Ng5+ Kh4 Ne4 Nh3 Qba4 Rg1 Ra8 Ng5 Nd6 Bc3 Rg8 Nh7 Nf7 Bb2 Bc6 Bc3 Kd7 e8N Qee3 Nc7 Rgd8 Kg3 h1Q e6+ Kc8 e7 Rd1 e8R+ Kd7 Ree6 Kd8 Re4 Be8 Be6 Bg5 Re5 Qh6 Rh1 Qe1 Bd4 Qc4 Bb2 Bc1 Re2 Qaa6 Be5 Qb7 Bd4 Ra6 Bc3 Qa7 Bb2 Nh8 Rf8 Nf7 Bg7 Ne5 Bh8 Qg7+ Kh3 Qf4 Ne4 Qf2 Rg1 Qf6 Rh1 Q6h6#
1qn1rRB1/3R1R1b/RN1Pr1rb/K1N3pP/1B3Q2/1r1Pq2k/1r6/1B1Rn3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 b4 a5 h4 c5 d6 Ke6 b6 f5 b7 g5 h6 f3 b5 f4 h7 a4 h5 c4 e5 Kf5 e6 Kg4 e7 a3 e8B a2 b6 c3 Bf7 c2 Ne2 Qe8 Nc3 Nd7 b8R Qd8 b7 Ne5 Ng3 Ra3 Na4 Rb3 Ne4 Ne7 Bg8 Bh6 Nec5 Bf5 Ba3 c1Q Nb6 Nc8 Bb4 Kg3 Bd3 f2+ Ke2 f1R Bb1 Nf3 d3 Ne1 Qd2 f3+ Ke3 f2 Kd4 Kg2 Qf4 Qe3+ Kc4 Rb2 Rg1+ Kh3 Kb5 Qc7 Ra8 Qb8 Ka5 Be4 Ra7 Bg6 Bc4 Re8 h8R Bh7 Rf8 Rb3 Bg8 Rb2 Rg4 Rg1 Rf6 f1R Rf7 Rgg2 Ra6 Rb3 Rd7 Rgb2 Rg1 Rf3 Rf1 Rff2 Qe5 Rf6 Qf4 Rg6 Rf2 Qa8 b8R Ree6 Rbb7 Qb8 Rf7 Re8 Rbd7 Ree6 Bc2 Re8 Rd1 Ree6 Bb1 a1R+ Ba2 Rc1 Bb1 Rcc2 Qe5 Rcc3 R2f6 Rc4 Qf4 Rce4 Rf8 Re8 R6f7 R4e6
3B2r1/1nNr1B2/pbPB4/1b4PN/kn1b1R2/N1Rq2q1/2P1K1NN/b1Q1b3 w - - 0 1 illegal: No possible last move, all moves rejected
1b1q2N1/1NPb4/4BQn1/B2P1qN1/q1kq4/R3pN2/KrBPRq2/2n2Nr1 w - - 0 1 illegal: No possible last move
2n4r/2b1R1rN/1nq1qR2/QbR5/3P3p/1P1krNBB/P1R4K/Nr3bR1 w - - 0 1 illegal: No proof kernel
2b1K1n1/N2Rb3/q1r2qkB/nBr1QN2/p3P2R/R1n2P1q/nBP2R1R/8 w - - 0 1 illegal: No proof kernel
3NK1kn/3b4/N3b3/BB1RqP2/B4rqn/B2RPqb1/PNp1Br2/3Q1b2 w - - 0 1 illegal: No proof kernel
b2q1B1q/4nRB1/B3bK2/3brP2/rpPB1b1Q/2BR2N1/1nkP2N1/3q1N2 w - - 0 1 illegal: No proof kernel
nnB5/7K/1R1B1q1N/1rPQ1p2/4B3/P2P1rbN/RRrq1B2/bb1B2rk w - - 0 1 illegal: No proof kernel
1R4q1/3k1B2/BBbq1B2/Pr2PKNq/Bp1Q1N2/1n2q1n1/4NP1b/1n3r1R w - - 0 1 illegal: No proof kernel
4k3/nr2B1B1/Bq2B1rP/1r2N3/pNq3b1/bR1Pr1KR/2R4P/2QB1bn1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 f5 e4 g5 b4 a5 e6 c5 e7 g4 b6 a4 b7 f4 e5 c3 h6 f3 b5 c2 b6 c4 Ba3 c1Q Nc3 Bg7 Nd5 c3 Kg3 f2 Ba6 f1B Nb4 c2 Nf3 Nd7 b8R Ra7 b7 Bf8 d3 Qb6 Rg1 Rh7 Ra2 Rg7 Rb2 Rg5 Rb3 Rf5 Ra8 Rh5 b8B Rb7 Bd6 Rf5 Bb2 Rg5 Rg2 Rg6 Re2 Re6 Re3 Rg6 Kh4 g3 Ra7 g2 Qe1 Rb8 Rc7 g1R Qd1 R1g3 Rc5 Qd2 Qc1 Qc3 Rc6 Qc4+ Bd4 Kf7 Rc7 Rb7 e8B+ Ke6 Rc5 Ne7 Rc7 Nc6 Be7 Na7 Bf7+ Kf5 e6 Ne5 Ne1 R3g5 Rh3 Rg3 Bg8 Re3 Nf3 Bd7 Bg5 Bc5 e7 Bc8 e8B Be7 Na2 Ba3 Be7 Bd7 Nb4 Be6 Ng5 Nf3+ Kg3 Bd7 Bg7 Ng1+ Kf2 Bc8 Nf7 Ke6 Bc6 Bd7 Bf3 Bc8 Rc5 Kd7 Bd1 Ke8 Ne5 Bf5 Be6 Bg4 Qa1 c1R Rc7 Qcd4 Rc2 Qc4 Qb2 Rb1 Qc1 Rb2 Nf3 Re5+ Kg3 Rb5 Ne5 Ra2 Rcc3 Re2 Rc2 Re3+
3B3N/n2q2q1/2q1b2P/BN2r1np/3N1KPP/3B1BrB/bR3b2/1QR1b1k1 w - - 0 1 illegal: No proof kernel
b1K2N2/2R1N2q/b1q1Q1PB/n2N2r1/NPr4r/p1R1RP2/3N1bnk/1r3B2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Rh2 Kf7 Ke2 Kf6 Kf3 Ke5 Kg4 c5 b4 a5 b6 c4 b7 h3 d6 a4 d7 a3 f6 c3 f7 c2 Ne2 Ra5 Qe1 Nc6 b8N Qb6 Na6 h5+ Kg5 e6 d8R h4 g4 Bc5 f8N Nh6 Rd7 Nf5 Nec3+ Ne3 Nc7 Ba6 Na4 Rh5+ Kg6 Kf4 Kf7 e5 Ke8 e4 d4 Qb7 Bd2 c1R d5 Rc4 d6 Qb6 Rg2 h2 g5 h1B g6 h3 Rg3 h2 Re7 Qa7 Kd7 Rh4 Rh7 Bd4 Ra2 Rd5 Rc2 Na5 Rc3 Bg2 Kd8 h1Q d7 Bb6 Re7 Rdc5 Rf3+ Kg4 Rff7 Kh3 Rh7 Kh2 Qe2 Nc2 Bh6 e3 Nd2 Ba8 Qe1 Qe4 f3 e2 Re5 Ne3 Re8 Nb7+ Kc8 Ng2 d8N Rg5 Nc6 Bf2 Rd7 Qe6 Nd5 Qf6 Re5 Na5+ Rb7 Qg7 Re4 Qh7 Re6 Qc5 Re4 Bb5 Rc7 Qb6 Nce7 Qc6 Qd1 e1R Qe2 Rc1 Qe3 Rb1 Qb6 Qc5 Qe6 Qc6 Ree3 Ba6+
1N3K2/1bkB1N1N/RR2PB2/1q1p4/qqr2Pn1/b2RQ3/n2P1qn1/1N1N1r2 w - - 0 1 illegal: No proof kernel
R6r/1B2n1Pk/4r1p1/bnKRBNP1/1R4qN/1q1r2R1/3rb1PQ/R1b3N1 w - - 0 1 illegal: No proof kernel
1NBrqB2/1bR1P1Rn/1R2qbn1/3Q1p1P/5k2/Kr2RPR1/5B1b/2bq1N2 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 c4 g5 e4+ Kg6 h4 f5 c6 d5 e6 a5 c7 a4 e5 g3 c5 d4 f3 d3 h5+ Kh6 e7 d2 e8R g2 e6 g4 c6 Kg5 b6 g3 b7 Bc5 Ne2 g1Q Rh3 g2 Rg3+ Kf6 Nd4 Ke5 Ba6 Nd7 b8B Ne7 Ba7 Bb7 c8R Nf6 c7 Qe1 Nc6+ Kf4 Nb8 Be3 Ka3 g1B Ra2 Qe2 Rb2 Ng6 Rb6 Nh7 e7 Qd7 Rg8 Qe8 Rg7 Bh2 Qb3 d1Q Qd5 Qc4 Nd2 Qe4 Nf1 Qe6 Bb2 Bc1 Rd8 Rg8 c8R Rf8 Rc7 Rf6 Kb4 a3 Rdc8 a2 Ka3 a1B Rd8 Bc6 Bc8 Bb7 Rdd6 Rf8 Rb3 Rf6 Ra6 Rf8 Bf2 Rh8 Re3 Rg8 Kb4 Rh8 Rb6 Ra2 Bc3 Bab2 Bd2 Bf6 Bc3 Rb2+ Ka3 Bg5 Rf7 Bh4 Bg7 Bf6 Bf8 Q8d7 Bg7 Rd8 Bf8 Qe8 Rg7 Rb3+
bN2B1B1/qNrKP3/3bpb2/1P4Nr/1n3Nbk/3qBq2/Q1PnN1R1/4R3 w - - 0 1 illegal: No proof kernel
1bR1q2R/r2NP1R1/P2B2K1/3q4/pbr5/2r1kn1P/5bB1/RB1RNnQb w - - 0 1 illegal: No proof kernel
6R1/2kNp2Q/n2q3R/1P3Pb1/2rRK3/b2nPnq1/4NB2/rNnBN1rN w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 h3 fxg4 Qa4 g3 Qd1 g2 Nc3 g5 Nb1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Ra3 Qc8 Ra1 Qd8 d4 Kd7 Kd2 a5 Kd3 h5 b4 c5 f4 a4 g5 a3 d6 h4 b6 a2 b5 h3 g6 c4+ Ke4 c3 d5 h2 g7 c2 b7 Qb6 f5 Qa6 Nf3 g1B Ne1 g2 Be3 c1N Bf2 Rh3 e3 Nh6 g8R Qa7 Qh5 Rg3 Be2 Qb6 Bd1 Nf7 Qh7 Na6 b8N+ Kd8 d7 Kc7 d8N Ne5 Nd7 Rc8 Nb7 Qd6 Nbc5 Nf3 Ncd3 Bh6 Nf4 Rg6 Nh5 Bg5 Ng3 Rg7 Nd2 Rg6 Rb1 a1R Rb4 Kb7 Rd4 Rc4 Nb1 Kc7 Nf6 Ne5 Ne2 Ned3 Nh5 Qg3 d6+ Kb6 d7 Kc7 d8N Qd6 Bg3 Bf2 Nf3 g1N Ne1 Nf3 Nc6 Rg7 Bh4 Bg3 Ne5 B3f4 Nhg3 Rg6 Rf1 h1Q Nd7 Qh2 Nh1 Qg3 Rf2 Rg7 Rh2 Qh3 Nb8 Be5 Bf2 Bgf6 Nd7 Rg1 Rg6 Qg2 Rg8 Qg3 Rh3 Bg5 Rh6 Rc6 Rb4 Bb2 Ra4 Ba3 Rd4 Rc4
1BK1Rr1B/B2P3q/1Nn1RQ1q/2pNB1PR/1n3bq1/P1r3k1/4b1nn/5B2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 d4 b5 g4 e5 f4 h5 f6 b3 f5 h4 a3 b2 f7 b4 g6 h3 g5 h2 f6 b3 g7 Ba6 Kf5 e4 Nc3 b1N Bf4+ Kd7 d6 e3 d5 b2 Qd4 e2 Be5 e1N Nf3 Qc8 Nd2 Rh5 Nc4 Rh3 Nb6+ Kd8+ d7 Nh6+ Ke6 Be2 g8R Ng4 Rg6 Bg7 f8B Nc6 f7 Ng2 Bfd6 Bf8 Bb8 Bd6 Bh8 Bf4 f8B Rd3 Ba7 Kc7 Qf6 Rh3 Bfg7 Rb8 Ne4 Nc3 Re1 Na2 Nc3 b1Q Rh6 Qh7 d6+ Kb7 Rh5 Nab4 Ncd5 Rc3 Rg1 Ra8 Bb8 h1Q Ba7 Qf8 d8B Qh4 Kd7 Nh2 Bc7 Re8 Bcb8 Qg4+ Qf5 Rc8 Rh1 Re8 Rh6 Rc8 Re6 Qf6 Qg6 Rf8 Qf7 Qfh6 Be5 Ka6 Kc7 Ka5 d7 Kb5 Na4 Kc4 Nab6+ Kd3 Qf6 Ke4 Kb7 Nf3 Rh5 Nh2 Re8 Kf3 Kc8 Bd3 Bec7 Bb5 Re6 Be2 Be5 Kg3
2NK1Rqn/2Pp2BB/N1QB4/PP4B1/1qb2n1r/2qb4/1b2k1rB/1R1R2b1 w - - 0 1 illegal: No proof kernel
1KRq3R/1P3B2/bNR5/1knQN2b/2p2B2/nnP1qqr1/3B1BP1/3B1r1q w - - 0 1 legal: proof: f4 d5 a4 b5 axb5 g5 fxg5 Nh6 h4 Bg7 e4 Bf6 g6 Bg5 hxg5 dxe4 Qe2 Ng8 Qg4 Qd6 Qd1 Qd8 Ke2 Kd7 Ke3 a5 Kf4 h5 Ke5 f5 d4 c5 b4 f4 g7 e3 c3 h4 d5 e2 g6 e1Q+ Ne2 f3 b6 h3 b5 c4 b7 h2 b6 f2 d6 Kc6 d7 a4 Rg1 h1Q Nd2 a3 Nf3 a2 Bd2 Nf6 g8B Kb5 g7 Ne4 Bf7 Na6 g8R Rh3 b8B Nac5 Nf4 Nb3 Nd5 Rg3 Be2 Ba6 b7 f1B Nb6 Qf2 Rg6 Ra7 Rc6 Nec5 Rc8 e6 Kd6 e5 Rb1 e4 Ne5 a1Q Bf3 Qh3 Rh1 e3 Rb2 Qg4 Rh8 e2 Bc7 e1N Be2 Qdg5 d8B Qfe3 Bf3 Qg8 Bh4 Be2 Bb8 Qh3 Kc7 Nc2 Ra2 Na3 Bg4 Rf3 Bf2 Rg3 Bgh5 Bg4 Qf3 Qah1 Qd5 Bf5 Bd1 Bg6 Rh6 Bh5 Rc6 Qgg4 Rh8 Qgf3 Ra1 Qh4 Kc8 Qhe1 Bd6 Qhd4 Kb8 Qh1 Ng6 Nc2 Qe5 Qed3 Kc7 Qd3e3 Be2 Ra8 Re1 Qef4 Qf5 Qf6 Qd5 Re8 Bd1 Re5 Kb8 Na3 Rcc8 Re8 Re6 Qd8 Bc7 Qd4 Rc6 Re1 Bcf4 Rf1 Ne5 Qde3
rrr2b2/1pBQR2q/RP2b2b/n3N3/1KR1NP2/N3Nq1P/4knB1/3N2r1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 d5 gxh5 d4 b5 d3 Qg4 Nc6 Qb4 axb4 cxd3 Nh6 d4 Ng8 d5 Nb8 a4 Kd7 d4 Kd6 Kd2 c5 f6 e5 h6 g5 f7 g4 a5 b3 Kc3 c4 h3 g3 a6 b2 h7 e4 a7 g2 b6 e3 Ne2 g1Q Na3 b1R Bg2 Be7 f8N Rb5 Ng6 Qh2 Re1 Qh1 Ne5 Rc5 Kb4 Qc7 Nc3 e2 Bf4 Qd8 Nd1 c3 Rc1 c2 Ng4+ Kd7 d6 Ke6 d7 Kf5 d5 Bf8 d6 Qh4 d8N Nh6 Nc6 Be6 Nce5 Rc8 f3 Rg8 h8N Qe7 Bh2 Qh7 Nge3+ Kg5 Bg3 Ng4 Bf4+ Kh4 Nhf7 Nf2 Ng5 Qf1 Ne4 Nc6+ Kc3 Na5+ Kb4 Rab8 a8R Rh8 Ra6 Rg8 Rb1 c1B Rb3 Ra8 Rc3 Rh8 Rc7 Qh1 Re7 Rcb8 Rg1 e1R d7 Rc8 d8Q Rf1 Nd5 Be3 Bh2 Beh6 Qd7 Rcb8 N5e3 Rg8 Nb2 Rc1 Rf1 Rcc8 Rc1 Qf1 Nbd1 Qe2 Bf1 Rg1 Bg2 Qd3 Rc4 Qd5 Nc6 Qdf5 Be5 Qh5 f4 Qf3 Ng5 Kg3 Bd6 Bd5 Ne5 Be6 Bc7 Ne4 Nc3 Kf2 Ncd1+ Ke1 Bh1 Ke2 Bg2 Nf2 Ne4 Qg6 Rc6 Qg8 Rc4 Qh7
2nn4/1p2B1qk/1nNPR1rN/N3P3/2N2nn1/b1RBN3/bBP5/nQ3Kr1 w - - 0 1 illegal: No proof kernel
3RB3/BQRn1N2/3rn3/3rnPP1/qNb2N1K/Pp1n1Bb1/1k2B1B1/4r1r1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 g4 Kf7 c4 e5 f4 h5 Kf2 d5 Kg3 b5 a3 d4 c6 b3 c5 e4 g6+ Kf6 c7 b4 g7 b2 c6 e3 Kh3 h4 Bc4 e2 Qf1 e1R Bf7 d3 Be8 b3 Be3 d2 Qg2 d1R Ne2 Rd5 Nbc3 b1N Na2 Na6 Ba7 Nd2 Nb4 Bd6 Rc1 Be6 c8B Qd7 c7 Nf3 Bb7 Qa4 c8B Ne5 Rc7 Rh6 Bcd7 Rb8 Bb5 Nc5 B5c6 Rd8 Rg1 Rdd1 Bf3 Bc4 Rh1 Ne6 Rf1 Ne7 g8B N7g6 Bh7 Nd7 g5+ Ke7 Kg4 h3 Rh1 Be5 f6+ Kd6 f7 h2 f8N Rd5 Rf1 h1N f5 Rc8 Bg8 Bh2 Nf4 Ke5 Rf2 Rd8 Rd2 Rh3 Be2 Rg3+ Kh5 Rd6 Bbf3 Nf2 Qh1 Rgg1 Qg2 Nd4 Bgd5 Ne6 Qh1 Nd3 Bg2 N7c5 Bdf3 Kd4 Nd7 Kc3 Ne5 Nd7 Nf7 Nge5 Rd1 Kb2 Kh4 Rgf1 Qg1 Rd5 Qb6 Rg1 Qb8 Nf6 Qb7 R8d6 Rc8 Nfd7 Rd8 Ba6 Rc1 Bb5 Rc6 Bc4 Rc7 Bg3+
3k2N1/4b1PQ/b2KpRn1/rr2r1P1/1N1b1q1B/R1B1PBN1/1NNb3n/2r5 w - - 0 1 illegal: No possible last move, all moves rejected
kB6/qRnrP3/2RB1pQb/4nnB1/4RPnK/4bB1P/1N2B1bN/r2b4 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 e5 gxh5 exd4 a4 Na6 axb5 Nb8 e4 a5 c4 g5 b6 d5 c6 a4 h3 d3 e5 a3 c5 g4 h6 a2 c7 Kd7 h7 Kc6 b7 g3 e6 g2 e7 d4 Nc3 Qd7 Bg5 Nf6 f4 d2+ Kf2 d3 Kg3 Na6 b8B Kb7 Be2 Ng4 Nf3 g1N Qc2 d1N Nh2 d2 Qg6 Bh6 Na4 Rd8 h8B Nf3 Re1 Nfe5 Kh4 Nde3 Nb2 d1B Rb1 a1B Bhf6 Ra7 c6+ Ka8 Bg7 Bb7 c8B Qd4 c7 Bg2 Bd7 Qa4 c8R Nc7 Bh8 Qa6 Bc6+ Qb7 Bcf3 Rd7 Nc4 Bd4 Nb2 Ra1 Bg7 Nb5 Rc6 Qa7 B7f6 Nc7 Bh8 Nd3 Be5 f6 Bd6 Bb6 Nc4 Bd4 Rb7 Nde5 Nb2 Nf5+ Kh5 Ng3+ Kh4 Bf2 Bc4 Bb6 Re4 Be3 Bce2 Nf5+
nRB2Nr1/2P1qR2/4PK2/2bB3b/r3pN2/2B1B1b1/1P2nQr1/k3brRB w - - 0 1 illegal: No proof kernel
8/r1PRq3/k2q4/1rBbN3/1B1Bnrp1/Nr1q2P1/PKRB1NQr/n4B2 w - - 0 1 illegal: No proof kernel
qQ1q1b2/2B1R2q/2NR2Bb/3b2NP/1n2rk2/1P1R1p1R/q2n1P2/2K1RN1q w - - 0 1 legal: proof: c4 b5 e4 a5 a4 h5 axb5 d5 exd5 Bh3 d4 Bc8 g4 hxg4 c5 Kd7 d6 Ke6 d5+ Kf5 d7 Kf6 Bg2 Ra6 Bf1 Rd6 cxd6 Kg6 Na3 Kf5 Nb1 Kf6 Kd2 Kf5 h4 e5 b6 g5 b7 c5 b3 g3 h5 e4 Ne2 c4 Ra4 g2 Rg1 e3+ Kc2 g4 Nd2 g3 Ra3 a4 Nb1 c3 Bd2 Nf6 Qe1 Nc6 b8R Bb7 Rc8 Nb4+ Kc1 c2 Rc3 Ne4 Nd4+ Kf4 Nc6 f5 Bd3 Rh6 Qd1 Re6 Re1 g1Q Ra1 Qa8 d8R g2 d7 a3 d6 a2 Re8 Qf1 d8N g1Q d7 Qg8 Re7 Qh7 Nf7 Qh1 d8R Re5 Rd6 Qd8 Nb8 Bd5 Ng5 Qf3 Rh1 Qe2 Be1 Nd2 Nc6 Re4 Rh3 Qf3 Qe2 Qg2 Qf1 e2 Qh1 Kg4 Qg1 f4 Qh2 f3 Qe5 Qh1 Qh8 Kf4 Qg8 Rd4 Bg6 Re4 Rd3 Qa8 Na3 Qd8 Nc4 Qa8 Rb1 a1Q Ne3 Q1a2 Nf1 Nc4 Bc3 Nd2 Qh8 Qd8 Bd4 Qaa8 Bb6 e1Q+ Kb2 Qe3 Bc7 Qea7 Re1 c1B+ Kc3 Na6 Kc2 Nb4+ Kd1 Qa2 Qg8 Bb2 Qh8 Bbg7 Kc1 Bh6 Qg8 Bfg7 Qe8 Qd7 Qd8 Bf8 Qb8 Qd8
b1KBq3/3b1kPp/R1Nq4/2N2Pb1/5r2/Q1Rb1BN1/1nR2n1P/1N1n2Nq w - - 0 1 illegal: No possible last move, all moves rejected
qB1q1bb1/2rn1P1B/2p1N1Q1/2P5/1Bb2r1k/2KNPBrB/R5rN/1R1b4 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Na6 h3 Nc5 h4 Ne4 Bd2 fxg4 Bc1 g3 Nd2 g4 Nb1 Ng5 hxg5 Bg7 Qd4 Bh6 Qd1 Bf8 Kd2 Ke7 b4 a5 f4 d5 c4 h5 b6 a4 c5 d4 e3 h4 b7 d3 b8B g2 g6 c6 f5 g3 b5 h3 b6 a3 e6 Kf6 g7 Kg5 b7 a2 e7 h2 e8B Ra7 f6 Rh6 Na3 Qe7 Kc3 d2 Nf3+ Kg4 Nc2 g1R Nce1 g2 Qc2 d1B Nd3 Rh4 Bd2 Qd8 Bh5+ Kh3 Rb1 a1Q+ Rb2 Qa6 Ra2 Rf4 f7 Nf6 g8B Be6 Bh7 Bc4 Bg4+ Kg3 Be2 Nd7 Bh3 Qa4 Nfe5 Kh4 Bf3 Qa6 Ng4 Qa4 Bc7 Qa6 b8N Rb7 Bd6 Qa8 Na6 Rc7 Qb1 Re1 Rg1 h1B Nh2 Re2 Re1 g1R Qc2 Ra7 Nc7 Rg3 Ne6 Reg2 Bb8 Rc7 Rf1 Be2 Rc1 Bd1 Rb1 Rg1 Be2 Be4 Bf3 R1g2 Kb2 Bf5 Bb4 Bg6 Kc3 Bh5 B7f5 Bg6 B5e4 Bh7 Bef5 Bg8 Bh7 Rg1 Qg2 Rg7 Qg6 Rg2 Qf5 R7g5 Qg6 R5g3
1k1r1r1q/N1qn1R1p/1PqP3b/R2RR2K/4N3/1qnN4/2QR3P/1Br1B1r1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 exf4 cxd5 f3 Na3 f4 Nb1 Bf5 gxf5 Qd6 Ra3 Qe7 Ra1 Qd8 Kf2 Kd7 b4 Kc8 d4 g5 e4 a5 d6 c5 d7+ Kc7 d5 c4 e5 g4 e6 a4 f6 a3 b6+ Kb7 f7 c3 b5 a2 e7 c2 e8R Qc7 d8R Ra3 Ne2 Nh6 Re5 Nd7 Bd2 c1R Qc2 Rd3 Nbc3 Ng8 Be1 Bh6 f8R Ne7 Rf7 Rf8 Ne4 Rdd1 Rg1 Qc6 Rg2 g3+ Kg1 f2+ Kh1 f3 Nf4 Qc8 Bd3 Kb8 b7 f1Q+ Rg1 Qh3 Rg2 Nf6 Rd2 f2 Rd7 Qe6 Kg2 Qcc6 Kf3 g2 Kg3 g1R+ Kh4 f1Q Rd8+ Kc7 b8N Nd7 b6+ Kb7 Kh5 Qc7 Rf6 Qg2 Nc6 Qg3 Na7 Qec6 Rf7 Qg8 Rb1 a1Q Rb5 Qa4 Ra5 Qb3 Qc3 Qh8 Bb1 Nc5 Rd6 Nd7 Nd3 Kb8 Qc4 Nf5 Qc2 Nd4 Rdf6 Ne2 Rff5 Nc3 d6 Rd8 Red5 Rgg8 Rfe5 Rgf8 Bf2 Rf1 Be1 Rg1
7R/Knp2B1P/4NrrP/1N1r2bN/bR2n3/P5qp/1B1Nb2k/Q2N1R1n w - - 0 1 illegal: No proof kernel
bK1r4/1P1Q2p1/5kNR/2Pqb1r1/Nn2b2N/NB1n4/1PB2pRN/n5Br w - - 0 1 illegal: No possible last move
r1b4R/2nQ2q1/1rR2b2/1nR1B3/1bK2PNP/2PN1pn1/Rp2qR2/1k1BB3 w - - 0 1 illegal: No proof kernel
1N1Rq3/R2r3Q/R2bRPb1/R1n1B2p/2N5/1nBb2q1/pPBrkPK1/n7 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 g4 Kf6 b6 e5 b7 a5 d6 c5 d5 h5 d7 e4 g5+ Ke5 g6 e3 d6 Ke4 f6 a4 g7 a3 Bd2 h3 Rh2 c4 Be2 c3 Kf1 c2 Qc1 a2 Nf3 Ne7 g8R Na6 b8B Nd5 Bc3 Ra7 Rg5 Qc7 d8R Bf5 d7 Nc5 Nd4 Qg3 Be5 Bd6 Ra8 Bg6 d8R Nb4 Rg2 h2 Nc6 h1B Na3 Rd7 Bd3+ Kf3 Qb1 c1N Bc2 N1b3 Nc4 e2+ Kg1 Bd3 Nb8 Rhh7 Ra6 Bg6 Qf1 e1Q Rb1 Qe3 Qd3 Rhg7 Qe4+ Ke2 Qb7 Bd3 Qe4 Rg8 Qh7 Qe4 Rd1 Qg6 Rc1 Qe8 Rg7 Rf8 Re7 Rg8 Re6 Rg4 Ra7 Rd4 Ra6 Bg6 Ra7 Rd2 Ra6 Qh4 Rg5 Bhe4 Rf5 Bd3 Kg2 Nc6 Rg1 Nca5 Rd1 Re7 Rd7 Na1 Rda7 Na5b3 Bg3+ Ne4 Rfa5 Rd7 Bge5 Nec5 Rh1 Qd4 Rh4 Qf4 Rg4 Bgf5 Rg8 Bg6 Rh8 Qe7 Rc8 Qe8 Rd8 Qg3+
3r1NR1/2qr3K/2p1pQ1B/6bB/1n4Rb/1Pq1nN1R/PkPN1r2/R4R1q w - - 0 1 illegal: No possible last move, all moves rejected
1B2R3/n1BNKn2/1P1b3k/BR1b1p2/2R1P3/nb2qBPp/3B2Nq/2Q1r2r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 f5 b4 Kf7 d4 Kg7 e4 c5 g3 a5 b6 c4 b5 h4 d6 c3 b7 a4 d7 a3 g6 h3 d5 c2 d6 a2 Bg2 Ra7 Bd2 c1N Nc3 Qg5 d8B Nd3 d7 Kh6 g7 Bd6 Rc1 a1Q Nge2 Nb4 Ba5 Qa2 d8B Nc2 b6 Na3 Na4 Nc6 b8B Be6 Rc4 Bd5 Nc5 Ra6 Nd7 Na7 Bdc7 Rh7 Kf2 f3 Nf4 Qb2 Ke3 f2 Qc1 f1B Kf3 Bd3 Ke3 Bc2 Bf3 Bb3 Rd1 Qa2 Kd4 Qc2 Ng2 Rh8 Be3 Qf2 Rd2 Qg1 Rb2 Qh2 Bc3 Ra5 Bed2 Rc5 Ba5 Rc6 Rcc2 Rc3 Rb1 Re3 Rc4 Re1 Rb2 Ne7 g8R Ng6 Rd8 Ne5 Re8 Nf7 Rb1 Bc2 Rb5 Bb3 Re5 Rd8 Re8 Ba2 Rcb4 Bdb3 Rc4 Qe3+ Kd5 Rc8 Ke6 Rh1 Bd8 Rc5 Bdc7 Rd5 Be1 Rd1 Bed2 Rde1 Kf6 Bf4 Ke7 Be5 Ra4 Bd5 Rd4 Bab3 Rc4 Bd6+
2qnN2K/N7/p2q1Brk/3B2R1/PBPn2p1/1N3R1n/Pq2r2B/b4BQb w - - 0 1 legal: proof: g4 c5 f4 e5 fxe5 h5 gxh5 Qf6 d4 Qa6 b3 Qa4 bxa4 cxd4 Kf2 f5 Kg3 Kf7 Kh4 d5 Kg5 b5 e4 a6 c4 f4 h4 d3 h6 d2 h5 d4 h7 f3 h6 b4 Rh5 f2 Ba3 b3 Bb4 d3 Ne2 b2 Nec3 Nc6 Qg4 d1Q Nb5 d2 Qg1 Nd4 Na7 Bb7 Rh3 Bd6 e6+ Kf8 Kg6 Re8 e5 Bh1 Rh5 Qg4+ Rg5 d1N Nd2 b1Q+ Ne4 Qb2 Nd2 Qh3 Nb3 Bc5 Rc1 Qg3 Rc3 Ne7+ Kh5 Qf4 Rf3 Rg8 h8B Nec6 Kg6 Nd8 Kh7 g6 e7+ Kf7 Be2 f1Q Bf6 Qh3 Bd3 Qc8 Bf1 Ref8 e8N Nf2 Be7 Nh3 Bd6 Nf5 Bc7 Bd4 Bb8 Qfd2 Bc7 Bc3 Bb8 Qd6 e6+ Ke7 Bc7 Nd4 Bb8 Rf4 Bc7 Kf8 e7+ Kf7 Bb8 Rg7+ Kh8 Rf5 h7 Rf6 Ra5 g5 Bc7 g4 Rg5 Rg6 Bb8 Qd5 Bh2 Rf5 Nf6 Qd6 e8B+ Kf8 Bc6 Re5 Bb7 Re2 Ne8+ Rf6 Rh5 Kf7 Bd5+ Kg6 Rg5+ Kh6 Kg8 Qa8 h8B Rfe6 B8e5 Rg6+ Kh8 Qc8 Bf6 Qd2 Be7 Ba1 Bf6 Qb2
2qB1Bk1/3B2Bp/1N4N1/1B3nPn/KN5P/q1Q1Pbq1/1pR4R/b1r1b1r1 w - - 0 1 illegal: No possible last move, all moves rejected
1R1qB3/1qr1N1Bp/1p3b2/1PRB2P1/2b3Rb/N2BB2K/3P3Q/kr2nq1n w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 d5 hxg5 d4 b5 d3 Qg4 Bg7 Qb4 axb4 cxd3 Ra6 d4 Bf8 d5 Ra8 a4 Kf7 g4 c5 f4 e5 Kf2 b6 Kg3 c4 g6+ Kf6 g7 e4 d6 e3 g5+ Kf7 d7 e2 a5 e1B+ Kh3 b3 a6 b2 a7 c3 f6 Ke6 f5+ Ke5 f7 Kd4 f6 c2 Bd3 Nc6 Na3 Be7 f8Q b1Q f7 Nf6 g8B Nb4 Qh6 Ne4 f8B Bh4 Bf7 Bf6 Bg7 Ng3 Be8 Qa2 Rh2 Qf7 Rg2 Nh1 Bb2+ Kd5 Re1 c1Q Bd4 Nc2 Rg4 Rf8 Rf1 Ne1 Nf3 Qfe7 Be3 Rf7 Nd4 Kc5 Bc4 Kb4 Bd3 Bb7 Rf3 Bd5 Nc6+ Kb3 Rf5 Bc4 Rc5 Ka2 Qh5 Qe4 Ne7 Qb7 Qh6 Rc8 a8B Ka1 Qh5 Rc7 Qh6 Qdc8 d8R Qd7 Rb8 Qd8 Ng8 Rfe7 Qh5 Re5 Ne7 Rf5 Qh6 Rf1 Qh5 Qa6 Bae4 Qb7 Bd5 Qd1 Qh6 Qe2 Qh5 Rg1 Qh6 Qf1+ Kh2 Qf5 Ng8 Nc2 Be6 Rb1 Bd5 Be1 Ne7 Qf1 Qh3 Bf2 Qg2 Bh4 Kh3 Qf2 Qg1 Ne1 Qh2 Qf1+
4q1B1/3Np3/1N1PnB2/1QP1r1r1/1RBP3b/2nbKRBB/4R1qp/2n2r1k w - - 0 1 illegal: No proof kernel
3rRn2/3P2B1/p2qNbP1/B5Q1/N1q1P2K/1N2q1N1/2bpNRB1/rb2kn2 w - - 0 1 illegal: No proof kernel
K5n1/2qpqb2/2b1R1NP/q4N2/1NkP1B1r/n1r1p1Bn/N1N1P2Q/R1R5 w - - 0 1 illegal: No possible last move
2N1kB1r/2p1B1R1/3Pn1Rp/1N3r2/b1P1RPb1/1R1qR1QB/4r1q1/K1nq4 w - - 0 1 legal: proof: g4 a5 e4 g5 b4 d5 exd5 f5 gxf5 axb4 h4 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qd6 Rh5 Qd7 Rh1 Qd8 c4 e5 d4 b5 Kd2 h6 Kc2 b3+ Kb2 e4 f4 b4 a4 e3 g6 g3 d6 g2 g7 e2 d5 e1R f6 Bd7 a5 Ra7 a6 Rh7 Nh3 g1Q Qf3 Qh2+ Nf2 Re5 Bh3 Rb7 a7 Nc6 a8R Re7 R8a3 Na5 Rg1 Rf7 Rg6 Ne7 g8R+ Rf8 R8g7 Nec6 Qg3 Nd4 Nc3 Qg2 Nb5 Ne6 Rb1 Rhh8 Ka1 Bc6 Ne4 b2+ Ka2 Bd7 Re3 Nb3 Bd2 Rf7 Rbe1 b1B+ Kb2 Nc1 Ka1 b3 Bb4 Re7 f7+ Kf8 Ba3 Bc2 R1e2 Bc8 d7 Ra7 Re1 Ra5 Ned6 Re8 Re4 Bd1 R1e3 b2+ Kb1 Ba4 Bc5 Qf6 d8R Qd4 Bb4 Bd7 Rb8 Qd1 Bc5 Ke7 Nc8+ Kd8 f8B Re7 Nc3 Ke8 Rb3 Rb5 d6 Ra5 Bd4 Rf5 Bf6 Bdc6 Re5 Bf3 R5e4 Bg4 Nb5 Ne2+ Ka2 b1Q+ Ka3 Qbd3 Ka2 Nc1+ Ka1 Rf7 B6e7 Re5 Rd4 Re4 Re2 Re3 Re4 Rf5 Re1 Re2 Re3 Rd2 Re4 Rc2 R1e3 Re2
1R4K1/1pB1R3/2n1rk2/1q6/1NBR1Pnq/1N1pPBR1/R6P/bn1bQ1rq w - - 0 1 illegal: No proof kernel
q2n2RQ/P1p3P1/1B1B3r/1B1B2K1/1b4n1/1R1b1P1b/NN1R1p2/q2r1qBk w - - 0 1 illegal: No proof kernel
1Br5/pPn2B2/3B4/N1nb2B1/R6K/bQNP1N2/2pP1qRB/kr1nq2r w - - 0 1 illegal: No possible last move, all moves rejected
1N2Rbr1/1B2n3/1Kn1N2q/2Pk1prb/1R4b1/2Rr2PP/1pRQ2b1/2B2NR1 w - - 0 1 illegal: No proof kernel
n3bRB1/1R1Nk2B/3p2n1/n1PBpr1K/3b2P1/3P1nQ1/rNB1qB2/3Rb3 w - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 g5 h4 f5 hxg5 fxe4 Na3 c4 Nb5 Kf7 Nc7 Kg6 Bxc4 Kg7 Bf1 Kf7 Ke2 e5 f4 b5 c4 h5 a4 b4 a6 d6 a7 h4 c5 h3 g6+ Ke7 f5 b3 a5 h2 f6+ Kd7 a6 b2 f7 b1N g7 e3 Kf3 e2 Kg4 e1B Ne2 Ke7+ Ne6 Nh6+ Kh5 Nc3 g8B Qe8 g4 Nd5 Rb1 Bd7 N2f4 Nc7 Qf3 Nc6 Rb7 Na5 Bd3 Nf5+ Bh7 Rg8 Bc2 Bh6 Nd3 Be3 Qg3 Rf8 Nb2 Bd4 d3 Qb8 Bh6 Be8 Be3 Nh4 Bf2 Nf3 Rg1 h1N Bg8 Bec3 Rd1 Be1 Bh7 Rg8 Nf8 Rg5+ Kh6 Rf5 Nd7 Nd5 f8R Nc7 Qf4 Ng3 Bg8 Nh5 Qg3 Nf4 Bh7 Qc8 Bg8 Rb8 a8B Ng6 a7 Qd8 Rb3 Rb4 Be4 Ra4 a8B Ra2 Bad5 Na8 Rb8 Qb6 Rb7 Rf6 Kh5 Qb3 Bb1 Qc2 Bf5 Qe2 Bc2 Rf7 Bfe4 Ngh4 Beh7 Ng6 Bg1 Rf6 Bf2 Rf5+
1q2NnRR/1rb3P1/prkn2KB/2nbP3/3n1P2/2N4b/B2NBp2/2BQ3B w - - 0 1 illegal: No proof kernel
7N/b4PN1/PNbr3n/kB1r3r/2q5/pQN2p1P/Rr1R1N1n/1bB1B2K w - - 0 1 illegal: No proof kernel
RR2R3/3P4/1N2nr2/3b1R1B/pR4N1/1rkqPpQ1/2rnBPbK/b3bB2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 e5 d4 Qd6 Be3 Qe6 d6 Qf6 d5 Qd8 Bd4 exd4 g4 Kd7 b4 h5 e3 c5 b6 a5 g6 f5 g5 d3 b5 c4 b7 c3 b6 h4 g7 c2 g6 c1B Qe2 f4 Qc2 h3 Nd2 h2 Nc4 Na6 b8R Bb2 b7 Nf6 g8B Ne4 g7 Nc7 Bf7 Ne6 g8B Ra6 Nf3 Nd2 Bh5 a4 Rb1 Rh6 Ra8 Rf6 b8R Ba1 R1b4 Bb7 Qc3 Ra5 Qe5 Rc5 Qg5 Rc6 Qg3 Bg7 Rg1 h1B Nh2 f3 Ng4 Bg2 Rh1 Rg6 Rh4 Bgc3 Rb5 Rb6 Rba5 Rb3 Nb6+ Ke8 d7+ Ke7 Rb5 Rf6 Rb4 Bc6 Rf4 Kd6 Rf5+ Kc5 d6+ Kb4 Bgf7 Qe7 d8R Bd5 d7 Qc5 Re8 Qd6 Nc8+ Kc4 Bfg6 Ba5 Nb6+ Kc3 Ra6 Kb2 Re5 Qc6 Raa8 Qb5 Nh2 Bc3 Rb4 Ne4+ Kd1 d2 Ng4 Nf4 Bc4 Ne6 Bf5 N4g5 Bfd3 Ne4 Rf5 Qa6 Bb5 Ka2 Kc2 d1R Bdc4 Rb1 Bd3 R1b2+ Kd1 Rd2+ Ke1 Kb2 Bbc4 Bh1 Kf1 Rc2 Kg1 Be1 Kh2 Nd2 Bf1 Kc3 Bb5 Bg2 Bbe2 Qd3
7K/P1r2NQN/4knN1/q2NBR1r/1PN1rp1R/b2Bn2P/4p1B1/1bn2n2 w - - 0 1 illegal: No proof kernel
qr3KR1/PNr1N1n1/1Br5/1Nb2BR1/P4b2/1p4R1/1Qb1RPRp/nr5k w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 h5 Kg5 Ke5 Kg6 Kf4 Kf7 e5 d4+ Ke4 g4 c5 a4 b5 d6 c4 f6 h3 d7 c3 d5 b4 g5 h2 g6 h4 g7 c2 a6 h3 a7 b3 d6 Be7 Ra2 Rh6 Nf3 Na6 Qd2 Nb4 Rg1 h1R Nd4 h2 Nc6 Kf3 Bh3 e4 Bf5 e3 Rg2 e2 Na3 e1R Nb5 Rb8 Rb2 Bf8 Ne7 Re5 Qd4 Rc5 Be3 c1B Re2 Rc7 Qb2 Nc2 Bb6 Na1 Rg5 Bb7 Rg2 Qc8 d8R Bf4 d7 Rb1 Re8 Bc6 d8N Be4 Nb7 Bc2 Rd8 Rg6 Ke8 Rh6 f7 Rhc6 Rg5 Nh6 g8R Ng4 R8g6 Kg2 Rg7 Kh1 R7g6 Bh6 f8R Nf6+ Kf7 Bd6 Rfg8 Bc5 Rd3 Ne8 Rdg3 Qd8 Rg2 Qc8 R5g3 Bf4 Kf8 Qd8 R6g4 Qc8 N7d6 Qb7 R4g5 Qa8 Nb7 Ng7+
n3k1N1/B2q4/3r2r1/5nNP/PKpB2rP/NRpNb1Nb/B1Q1R3/4r1q1 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 d5 c4 dxc4 g4 Rh7 gxh5 Rh8 h4 g5 f4 b5 a4 e5 d4 c5 Kd2 g4 Kc3 e4 a6 e3 f6 e2 f7+ Kd7 f5 e1R a7 g3 f6 g2 d5 Rh6 d6 Nc6 Ne2 g1R Ra3 Qc7 Bb2 Kd8 d7 Be7 f8B Rg2 f7 Ba6 Qc2 Rg7 Rh2 Bc8 Rb3 Bg5 Na3 Nd4 Ng3 Rhg6 Re2 Nf5 Bh3 Rb8 a8N Be3 Nb6 Nge7 Nd5 Rbb6 Nf6 Rd6 Ng8 Rg4 Bg2 R7g6 Bd5 Qa7 Bg7 Qc7 f8N Qb7 Ba1 b4+ Kb2 Qb5 Nh7 c3+ Ka2 Qc6 Bd4 Qb7 Be6 Nd5 Ng5 Nc7 Bc4 Na8 Bb2 Kc7 d8N Kd7 Nc6 Ke8 Ne5 Qd7 Bc1 Bb7 Nd3 Bg2 Rb2 Bh3 Kb3 Rh6 Be6 Rg6 Kc4 b3 Rb1 Bf4 Bce3 b2 Bf2 Be3 Bd5 Qc8 Kb5 Qe6 Ba2 c4 Ba7 Bc1 Bfd4 Be3 Ra1 b1Q+ Ka5 Qc1 Rb1 Qc8 Kb4 Qd7 Rb3 Qd2 Rh2 Qf2 Rg2 Qf1 Re2 Qg1
2b1Nnb1/4r1rB/4qN2/Q2B2pP/2RN2P1/Rq3PB1/1pB3k1/KB3qqn w - - 0 1 illegal: No possible last move, all moves rejected
5Rqr/2b2B1N/RB3R2/3pr3/PPP1R1r1/Q2p1b1n/R4Bq1/1krNK1n1 w - - 0 1 illegal: No proof kernel
q1Bn1N2/5r1B/Bb3R1K/n2p2PQ/6qr/r3RrBP/3NpPbN/2k2B2 w - - 0 1 illegal: No proof kernel
Qn1B3q/n4b2/1B1r3p/b3PkPN/Bp2qb2/NRN5/2Pb2NK/3R1Nr1 w - - 0 1 illegal: No proof kernel
2bk1N2/n1b2n2/2R1PN2/1b1p2PR/p1R4Q/q1B2q2/1rB1P1Rr/K1R1B1b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 bxa4 d4 Qf6 dxc5 Qd8 Kd2 h5 Kc3 f5 g4 d5 b4 a5 Kb2 f4 c4 f3 b5 f2 e6 h4 c6 h3 c5 h2 g6 Nd7 g7 Ndf6 b6 Be7 c7 Rb8 c6 Rb7 Nh3 Rh4 Nf4 Qd6 Qd4 Qd8 Bh3 f1B Bd2 Bc5 Ng6 Nd7 Be1 Qe7 Nf8 Bg2 Nd2 Be4 Rc1 a3+ Ka1 Nh6 g8R Bd3 Ne4 a2 Bg2 Rb8 b7 a4 Qf2 Rh3 Qh4 Bg1 Rg6 Qa3 Nf6+ Ke7 Be4 Bb5 Bc2 Nb6 Rg5 Nf7 Rh5 Bd7 g5 Nc8 Bc3 Na7 c8R Qd6 c7 Qa3 Rd8 Bc8 Rd6 Bb6 Rhg1 h1Q Rg2 Bg1 Rc6 Rh2 Rg3 Qf3 Rg2 Bd7 N6h7 Ke8 c8R+ Ke7 R8c7 Kd8 Nf6 Bc8 Rc4 Qe7 R7c6 Qc5 Kb2 a1B+ Ka2 Qa3+ Kb1 Ra8 b8B Bb2 Bf4 Rb8 Bfd2 Rb6 Be1 Rb7 Bcd2 Be5 Bc3 Bc7 Ra6 Bc6+ Rb6 Qe7 Ka2 Qd6 Ra6 Rb2+ Ka1 Bb5 Rac6 Qa3#
K1n2q2/2Bq3N/B1r1pBQP/6qB/1BbP3k/qP3RN1/Rrp4N/bn6 w - - 0 1 illegal: No proof kernel
2KNkq2/5qRn/1rP3NB/pBp2B2/n1Q1b1P1/1r1P1N2/2B3qb/R3q1B1 w - - 0 1 illegal: No proof kernel
rn2k1n1/2RN3B/1PRrnbn1/R7/Rp5q/Q2bP3/P1B1p2B/1NK3Rq w - - 0 1 illegal: No proof kernel
qQ3bb1/3bB3/PK2BR1N/rR3Pqb/2r1p2n/2k4n/R2p1P1N/3RR1N1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Kd4 g5 a4 b5 h4 d5 c4 b3 a5 g4 c6 b2 Kc5 Ke5 h6 g3 c7 d4 h7 d3 h5 g2 h6 b4 Bg5 b3 Kb6 Kd4 c5 e5 c6 e4 Ra2 Bd7 Nd2 b1B Be7 b2 Ndf3+ Kc3 Nh2 d2 Bc4 Nf6 Be6 Bc2 Qb1 Qe8 c8R Nh5 c7 Bd1 Rd8 Nc6 c8R Nf4 Rb8 Ne5 Rb7 Rg8 h8R Nf3 h7 Nh4 Rbb8 Bh5 a6 Rg3 Rg8 Nh3 h8N Re3 Rb7 Rc8 Nf7 Rc4 Nh6 Rd3 Rc8 Rd5 Rg6 Ra5 Rf6 Qd8+ Rcc7 Qa8 Rc5 Be2 Rb5 Bh5 Qd1 b1B Qb3+ Kd4 Qg3 Bc2 Qf4 Kc3 Qb8 Ba4 Rb1 Bac6 Re1 Bd5 Ngf3 g1Q Rd1 Qg5 Rhe1 Rca4 Ng1 Rd4 Rc7+ Rc4 Rc5 Bde8 Rb5 Bec6 Bc8 Bg8 Be6 Bd7
1qRrrq2/b1B1N1Pk/P3Nr1r/3bQN2/1p2Kn2/N2BPR2/N2p4/n5R1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kd2 b5 Ke3 d5 c4 f5 a4 Kf7 g4 Kg7 a5 h5 g6 b3 e6 b4 a6 b2 e7 h4 e8N+ Kh6 c6 h3 c7 h2 c5 Bg7 c6 Be6 c8R Ne7 c7 Nd7 Ra3 Nc5 Qd4 Nb3 Qe5 f4+ Kf3 d4 Ke4 Bf8 g7 d3 g8N+ Kh7 g5 f3 Ng7 f2 Bf4 d2 Nh6 Ng6 Nhf5 Na1 Rf3 Bc5 e3 Re8 Na3 b1Q+ Bd3 f1R Ne2 Ba7 Rg1 h1R Nc3 Rh6 Na2 Bg8 Bh2 Nf4 Ne6 Qc2 Bg3 Qc5 Bh2 Qf8 Bg3 Bf7 g6+ Kg8 g7 Kh7 Rb8 Rf2 c8N Qb6 Nce7 Qb5 Rb7 Rad8 Rc7 Qb8 Rc4 Rfh2 Rcc1 Rf6 Rc8 Rhh6 Qd5 Ng2 Bc7 Nf4 Qe5 Bg8 Nc5 Bc4 Ne6 Bd5+
BB5K/B1q1p3/5p1n/1q1B2Pb/kNRn1QPn/2b1N1nR/NB1P1r2/2r5 w - - 0 1 illegal: No proof kernel
2B2Qr1/2NPPBp1/2B2P1b/5R2/2p3bB/2Bn2q1/2kn1nRN/q2r1nKN w - - 0 1 illegal: No proof kernel
1bb5/1nPBQ1R1/1R1p1q1P/bqNk4/6bR/4r1K1/pBB1PBn1/1r1B3N w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 h4 Ke6 b4 a5 c4 f5 b6 g5 b5 f4 h5 f3 b7 a4 c6 a3 b6 a2 h6 Ra6 c5 Qe8 c7 Bd6 c6 Nf6 Nc3 Bb4 Na4 Nh5 Bb2 Ba5 Rh4 Nf4 Nh3 Ng2 Kg3 f2 Qb1 d6 Qe4 Nd7 b8B Rf8 b7 Rb6 Ba7 Nc5 b8R Nb7 Qe3 Rf6 Nc5+ Kd5 e6 Rb5 e7 Re6 Re1 Qh8 e8B Qf6 Bg6 Rb6 Bc2 Re5 Ba1 Rb1 Bd1 Re8 Bb2 Re7 Kh2 Re8 Qe7 g3+ Kh1 g4 Bb6 Bf5 c8B Be6 c7 Bf5 Qf8 Re3 Bd7 Be6 B7a4 Bc8 Qd8 Nf4 Qe7 g2+ Kh2 g1B+ Kh1 g3 Bac2 Bg4 Rg8 Ng2 Rg7 Bh2 Ng5 Bg1 Nge4 Nf4 Bh3 f1B Ba7 Bc8 Bd7 Bh3 Nf2 Bg4 Nh3 Bf2 Rf1 g2+ Kh2 Bfe1 Nf2 Bb6 Bb8 Ba7 Nh1 Bd2 Rf3 Ba5 Kg3 Re6 Rf2 g1Q+ Rg2 Qgd4 Rg1 Ng2 Rf1 Qe3+ Rf3 Qeg5 Rb3 Re5 Rb6 Re3+ Kh2 Qgg6 Ne4 Ne1 Rb4 Ra3 Rb3 Ng2 Kg3 Bd4 Ba7 Qe8 Bf5 Qc6 Bd7 Bg1 Bf2 Qa6 Be1 Ba7 Bf2 Bb8 Nc5 Qd3+ Kh2 Qc4 Rb5 Re3 Rb6 Re6 Kg3 Qb5 Rc6 Re5 Rb6 Re3+
2kN4/2p1R1Q1/2N1P3/1q1b3B/r2qN1Pn/n2NP1rN/pb5K/b1R1B1Rb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Kd7 Kg3 f5 b4 h5 d4 a5 d5 c3 d6 c2 e3 h4+ Kh2 a4 b6 a3 e6+ Ke8 b5 f4 b7 a2 b6 f3 g6 f2 g7 Ra6 Qd4 Nc6 Nc3 Nge7 b8N Rg8 b7 Ne5 Bd2 c1B Nh3 Ra4 Nd7 N7g6 b8N Bb7 Nc5 Nc4 N3e4 Na3 Be2 f1Q Bh5 Qb5 Nd3 Qdd7 g3 Kd8 Rg1 Kc8 Be1 Be7 Qb2 Bf6 Qg2 Ba8 Rb1 Ba1 g4 Rf8 Qb2 Rf3 g8R+ Qd8 Rf8 Rg3 Qg7 Bcb2 Rf7 Qf6 Re7 Qd4 Rc1 Bd5 d7+ Kb7 d8N+ Kc8 Nhf2 h3 Kh1 h2 Nbc6 Rf3 Kg2 h1B+ Kh2 Nh4 Nh3 Rg3
8/Npb1P1B1/BR1Pn1q1/Kq1R3b/3PRp2/kNQ1n1Nn/n1rN1N2/5r2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 e4 c5 d4 g5 Kd2 f5 h4 b3 Kc3 g4 e6+ Kd6 h6 g3 e5+ Ke7 h7 b2 h5 c4 Kb4 c3 h6 g2 d6+ Ke8 a5 c2 e7 Kd7 e8R Kc6 a6 Be7 e6 Bh4 a7 Nd7 Ba6 Nb8 Ne2 g1N Ng3 Ne7 Ra5 Nd7 Qe1 Rg8 h8N Nf3 h7 Bf6 Qc3+ Nc5 Ng6 Ng5 h8N Qd7 Nf8 Nh3 Bh6 c1N Nd2 f4 Nhg6 Nf5 Bg7 Ne3 Ne5+ Kd5 Nd3 Bd8 Rd1 Bc7 Nf2 Qc6 Nd7 b1Q+ Nb3 Qf5 Ne5 Qg6 Nf3 Qd7 Nfd2 Na2+ Ka3 Rf8 Rb1 Qb5 Re7 Rh8 Rb2 Rb8 a8N Bd7 Rb1 Be8 Nb6+ Kc6 Nc8 Kd5 Na7 Rc8 Rf7 Rh5 e7 Ne6 Rf6 Rg5 Nf5 Rg1 Ng3 Rf1 Rb2 Neg5 Re6 Bf7 Re4 Ne6 Rb1 Bd8 Qd3 Rc2 Qc3 Bc7 Na1 Qh7 Rb4 Bh5 Nab3 Qc5 Rb5 Qg6 Rb6 Qc4 Ka4 Qd3 Ka5 Qe2 Nb1 Qc4 Rb5+ Qc5 Qe1 Kc4 N1d2+ Kc3 Qc1 Qe5 Qe1 Kb2 Rd5 Ka3 Qa1 Qeg5 Qc3 Q5f5 Ree5 Qd3 Re4 Qb5+
1b1B1NnQ/q5p1/B2kpbP1/BP3B2/n4Nn1/2n3B1/3KrPR1/1R1n1R1b w - - 0 1 illegal: No proof kernel
bR5B/B1B1R1P1/1R2B2b/3r3r/rP5n/p2q1pb1/2Q2Prk/N1rBNK2 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Nd7 Ra1 Ndf6 d3 Nd5 exd5 c4 Ra2 cxd3 Ra5 Be6 Ra1 Bc8 c4 Kd7 g4 h5 b4 f5 b6 a5 g6 e5 c5 e4 g5 d2+ Ke2 h4 d6 Ke6 b7 h3 b8B e3 d7 d3+ Kf3 f4 g7 Kf5 Qc2 Nh6 g8R d1R g6 a4 c6 e2 c7 e1B Qa2 a3 Qc2 h2 Kg2 Kg4 Nd2 Bd6 Ngf3 Ra4 Bb2 Nf5 Ba7 Bb7 c8B Ba8 Nb3 d2 Be2 Be5 Re8 Rg8 Kf1 Kh3 Rf8 Bb8 Bh8 Bc7 Rg1 h1R Rc1 Rg7 Na1 Rh2 Rg2 Rh7 g7 Nh4 Rg1 Rh5 Rg6 Rg2 Rb6 Bb8 Rb1 Be5 Rb3 Rc1 Re3 d1R Re4 Bd2+ Ne1 Bb8 Re7 f3 Rfe8 Kh2 Rg8 Qc7 d8B Qc3 Be6 Bg3 Bc7 Bh6 Rgb8 Rdd5 Bd1 Qd3+
q1B4R/2Bn1pN1/5Pp1/1rnQnqk1/2BN3b/B3P1NP/4K2R/1q1r1Bn1 w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 b4 Qd5 Ba6 Qd1 a4 b3 Bb5 cxb5 axb3 a4 Ke7 f4 d5 e6 Kf6 f5 c5 h3 d4 h6 b2 h7 b3 e3 d3 e7 d2+ Ke2 c4 e8B c3 a5 c2 a6 Qd5 a7 Qb7 b6 Nh6 Nf3 Be7 Nc3 b1N Ba3 b2 Bb5 Ng4 Rh2 Rd8 h8N Ne5 Bc4 Nbd7 Nd4 Kg5 Ng6 Rab8 Nf4 g6 Nh5 Qa8 b7 c1Q Ng7 Qc2 Ra2 Qe4 Qb3 d1N Qb5 Nd2 Qd5 b1Q f6 Nb2 Ra1 Bd6 Ra2 Qf5 Ne4+ Kh4 Ra1 Ndf3 Ng3 Nbd3 Ra2 N3c5 Rd2 Rbc8 b8B Kg5 Bc7 Rb8 Ra2 Rb5 Rb2 Qb7 a8B Qa7 Bb7 Qa8 Bb8 Bc7 Bc8 Ba5 Bc7 Be1 N3h5 Bh4 Ng3 Ra5 Rb6 Rb5 Re6 Nf8 Re8 Rd6 Qb7 Nfd7 Rh8 Rd5 Nc6 Rd3 Nd4 Rd1 Qd5 Ng1#
4nr2/q1B1q1p1/p2BK3/Pr1NBNPB/q1kB2N1/2nr2Qb/3Pq3/4R2R w - - 1 2 legal: proof: g4 b5 h4 f5 gxf5 d5 c4 bxc4 e4 e6 exd5 Ba3 Ke2 Be7 Ke1 Bg5 hxg5 Kf7 Bh3 Kf8 Bf1 Ke8 Ke2 Ke7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 f4 a6 a4 c3 a5 h4 f6 h3 f7 h2 f8N c2 f5 Ne7 f6 Qd7 f7 Rh3 d6 Rd3 Be2 Qa4 d7 Nd5 d8B Kb4 b3 c5 Nf3 c4 Nh7 c3 Bb2 c1Q Nf6 c2 Rg1 h1R Qe1 Nd7+ Kd6 e5 f8B e4 Nd4 e3 Nc3 Rh4 Bh5 e2 Qg3 e1Q Rh1 Qe2 Bb6 Qcf1 Re1 Qff2 Ba7 c1Q Be7 Bb7 Nf5 Rf8 Bb6 Rhd4 Ng4 N7f6 Bed8 Qca1 Bdc7 Qae8 Ba7 Qaa4 Ba1 Rf4 Be3 Qb8 Ke6 Qd8 Bb2 Ne8 Ba1 Ka3 b4 Kb3 b5 Rb4 b6 Rb5 Bb2 Ba8 b7 Kc4 Bd6 Qg1 b8B Bc6 Bbc7 Qgf2 Qe5 Qg1 Bf4 Qa7 Qe3 Bb7 Bfe5 Ba8 Qg3 Bb7 Nd1 Bc6 Bd4 Nc3 Nh2 Bg2 Ng4 Bh3 Nde3+ Kb3 Nd5 Kc4 Qg1 Rb3 Qe3 Rb5 Qg3 Qe7+
2N1q3/1Pr5/1q1BBBNk/r1Qb2r1/1P1BR2p/R1q2KBn/1b1Rp1rP/8 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 f4 fxe4 g4 Bd7 f5 Be6 g5 Nd7 Ra4 Ndf6 gxf6 Bd7 Ra1 Bc8 Ke2 Kf7 d4 h5 b4 a5 d6 g5 b6 e5 d7 c5 b7 c4 d5 a4 d6 h4 Nf3 a3 Rg1 g4 Be3 a2 Ba7 e3 Bh3 g3 Bg4 g2 Rh1 g1R Na3 e4 Qc2 c3 Nc4 Bg7 Nb6 Nh6 Ne5+ Kg8 f7+ Kh7 f8R Rg8 f6 Nf7 Be6 Rg5 Rhe1 Kh6 Ng6 Qe8 Bb8 Raa5 d8B Bh8 Rad1 a1Q d7 Qb1 Qc1 c2 Rd2 Qa1 Bd6 Qd4 B8c7 Rg7 d8B Rg2+ Kf1 Ng5 f7 Nh3 Bf6 Rgg5 Bg3 e2+ Kg2 e3 Kf3 Bd7 Nc8 Qb6 Bce5 Bc6+ Bd5 Rg8 Bd4 Rg7 Qa3 c1R Qc3 Rg8 Qc5 Rc2 Ra1 e1Q Ra3 Rg7 Rg8 e2 f8B Qa1 Bfd6 Qc3+ Be3 Rc1 Rf8 Rc7 Rf7 Re1 Re7 Rg1 Re4 Rg2 Be6 Bd5 Bfe7 Be5 Bf6 Qc2 Bef2 Bb2 B2d4 Qc3+
1q3RR1/2QnN1p1/1N2kn1N/rBq1PNP1/2q1q2P/2rbn3/Rp5B/5KN1 w - - 0 1 illegal: No possible last move
1R1NkrB1/5n2/1p3Qq1/1rB1b1n1/RPp1B3/1B2q2q/BR1NP1nP/1n2K3 w - - 0 1 illegal: No proof kernel
3N1k2/1q4RK/B4Pr1/Q1npr1r1/p1N3B1/1n1BB1Rr/P4P2/1BR2qnb w - - 0 1 illegal: No possible last move, all moves rejected
5B1n/1qp1nb2/kNrn4/3p2BN/1PP4N/K3nB1R/QP1RN1rr/1q1N4 w - - 0 1 legal: proof: h4 e5 g4 g5 d4 f5 dxe5 b5 a3 b4 axb4 Bh6 Ra2 fxg4 Ra1 g3 Qd6 g4 Qd1 Bg5 hxg5 Kf7 Ra6 Kf8 Ra1 Ke8 Kd2 a5 Kc3 d5 Kb3 Kd7 f4 Kc6 c4 Kb6 e4 h5 g6 g2 f5 g3 e6 h4 f6 h3 g7 a4+ Ka3 h2 e5 Rh3 e7 Nc6 e8N Nce7 f7 Ng6 f8B Ra6 e6 N8e7 g8N Nh8 Ne2 g1Q Bg5 g2+ Nbc3 Kb7 Nef6 Rc6 Qc2 Ka6 Qb3 Bd7 Rd1 Qb8 Rd4 Be8 Rd2 Qb7 Nd1 Bf7 Nh5 Rh4 Ngf6 Rh3 Ka2 a3 Nd7 Rh4 Nb6 Rh3 Kb1 a2+ Kc2 a1N+ Kb1 Bg6+ Ka2 Bf7 Ka3 Rh4 Qa2 Nc2+ Ka4 Ne3 Ka3 Nc8 e7 Nd6 e8N Rh3 Nc1 Rh4 Bd3 Qe1 Bb1 g1R Ne2 Rg2 Be4 Rh3 Neg7 Rh4 Rf1 h1N Bf3 Rhh2 Nf5 Ng3 Nh4 Ngf5 Rh1 Ne7 Bf4 Rf2 Bg5 Rhg2 Rh3 Rh2 Ndc3 Qb1 Nd1 Rfg2
2rN3B/N1q1P3/2rP1bQ1/k1p2pqr/1R2R3/3n1q2/2PnB1RK/q1RN2R1 w - - 0 1 illegal: No possible last move, all moves rejected
3bnn1B/Q3p1B1/2R1B2p/1N1R1b1B/2B1qbbK/1P4n1/4P1Pk/NqR3r1 w - - 0 1 illegal: No proof kernel forced: bxLB
B1r1NnR1/2RB4/KpRbp3/RP2n1n1/2r2n2/rQ1P3k/q1R4P/2BrN3 w - - 0 1 illegal: No proof kernel
N3q1n1/k4KR1/n4NRp/QR1P2Nr/B1N1n3/p3PB1P/3prbb1/1N5b w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 fxg5 e5 d4 Bg4 d6 Kd7 d5 Ke8 Be3 Bc8 Bd4 exd4 Kf2 Kd7 Kg3 f5 Kf4 a5 Ke5 c5 b4 c4 g4 f4 b6 d3 h3 a4 g6 a3 e3 h6 g7 c3 b5 c2 b7 c1N b6 f3 g5 f2 g6 d2 Bg2 f1B Nf3 Nf6 g8N Bb5 g7 Nh5 Rg1 Qh4 Nf6+ Kd8 g8B Ne2 d7 Be7 Ke6 Qe4+ Ne5 Neg3 Kf7 Bf1 Nc4 Ra4 Bh7 Na6 b8N Rg8 b7 Kc7 d8N Bf5 Bf3 Bg2 Nbd7 Bg4 Ndb6 Kb8 Na8 Ka7 b8R Rb4 Nd7 Bh4 Rb5 Nf6 Qa4 Rg5 Ne6 Ng8 Bf5 Rh5 Ng5 Rb3 Nf6 Qe8+ Kg7 Rb2 Bc2 Ne4 Qa5 Bf2 Ba4 Bh1 Rg3 Rc2 Rg1 Rc1 Rg2 Re1 Rg1 Qc8 Kf7 Re2 Ngh7 Bf5 Rg6 Qb8 Ng5 Qe8+ Kg7 Qd7+ Nf7 Qb7 Rg3 Bg6 Bg4 Qd7 Nc3 Qd8 Rag1 Nc5 Nb1 Re1 Bgd1 Bd3 Bf3 Bf1 R1g2 Qd7 Kf8 Qe6 Rg7 Ne4 R2g6 Re2 Ng5+ Qd7 Ne6 Bfg2 Ng5 Ne7 Kf7 Qd8 Bb3 Ng8 Ba4 Qe8+
n2k3q/n1Nrp1P1/1BB4R/5KbR/RP2P3/1n1pRr1p/1N2Q2N/b3r2R w - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Qd8 g6 Bb7 g5 Bf3 h3 Bg4 hxg4 Qc8 Ra4 Qc7 Ra1 Qd8 Kd2 a5 Kd3 f5 b4 d5 c4 h5 c5 h4 g7 h3 g6 f4 c6 a4 g5 a3 c7 f3 c8R a2 b6 f2 b7 Ra4 Nf3 Rh7 Be3 Ra7 Nc3 Ra8 Rc6 Ra6 Na4 Nf6 g8R Nfd7 g7 Ra7 g6 Nb6 Rh8 Na8 g8R Rf7 Bg2 f1N Rh5 Nd2 Nh2 Rf3 Nb2 Nb3 Rf6 Nc6 b8N Rb7 Na6 Na7 Nc7+ Kd7 Rgh8 Bh6 g7 Bg5 R8h6 Qh8 Re6 Kd8 Re5 Rf4 Bg1 Rf1 Re3 Rf3 Rc1 a1B Rc5 Rb6 Ra5 Rd6 Ra4 Rd7 Kc2 d3+ Kc3 d2 Kd3 d4 Ke4 Bf4 Kf5 d3 Qc2 Rf2 Bc6 d1R Rg3 Rb1 e4 Rbf1 Qe2 Re1 Rf3 Rff1 Bb6 Rf2 Re3 Rf3 Ke6 Bg5 Ke5 Rg3 Kf5 Rf3+
2KB1rk1/1bP1r1N1/B1RB1n2/5p2/3N3Q/R1n1b1p1/pP2P3/2BqBnbN w - - 0 1 illegal: No proof kernel
1b6/rrP1NnR1/2K2pB1/PN1bQ1n1/p2p2n1/5NBR/k2N2P1/1q1R1b1N w - - 0 1 illegal: No proof kernel
1B1q2b1/1r2bR1R/2RB4/k2PKQN1/1R3pN1/p4nP1/2p1nP1b/r3RNq1 w - - 0 1 illegal: No proof kernel
2N2qNK/1Qb2kn1/5N2/Pn1b4/1Br1R2q/p1P1pBP1/1p3B1B/n1BrR3 w - - 0 1 illegal: No proof kernel
2R3r1/R1pB2Q1/qr1B3P/1N1NbBp1/2n2n1K/q4Pp1/1n2k1P1/b2R2BB w - - 0 1 illegal: Other
1nRB1n2/pb4R1/Bqbrk1PK/Q5P1/2p1qRP1/1pbBN3/2Br3B/6N1 w - - 0 1 illegal: No proof kernel
rN2n2r/k5n1/2B1b2p/2P1Qq1N/N1P1NPR1/pR2pBB1/1K1b4/2r2N1r w - - 0 1 illegal: No possible last move, all moves rejected
bQ3Kn1/P4R2/n1n2N2/2krB1RB/qpN3Bb/Rp1p2Pr/4P2R/6nR w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kd2 Ke7 Ke3 f5 Kf4 d5 c4 b5 a4 h5 a5 b3 c6 h4 c5 d4 e6 b4 Ke5 h3 g6 h2 c7 f4 g7 f3 a6 f2 a7 Qd7 g3 Qa4 c6 Nf6 g8R Qa6 Bf4 Nd5 Nf3 Qd3 Ra3 Rh7 Ng5 Nf6 Bh3 f1N Ne4 Nd2 Bg4 Bb7 c8R Rh3 c7 Na6 Rg5 Ng8 Nf6 Qc3 Rd8 Qc6 c8R Qa4 Rc3 Bg7 Rf3 Nc4+ Kf5 Rb8 Kg6 Ba8 Nd2 Na5 Nc4 Rb5 Be5 Nc6 Qd2 d3 Qf4 Rc5 Rf2 Rd5 Rf8 Bh6 Rf7+ Kd8 Rh5 Bg5 Kg7 Bh4 Rg5 Kc8 e7+ Kb7 Rha1 h1N Rh2 Nf2 Kf8 Rd4 Rah1 Rd5 Nd6+ Kb6 e8B Kc5 Nc4 Kb5 Ba1 Kc5 Qb8 Ne4 Be5 Nd2 Rd7 Nf3 Beh5 Ng1 Re7 Rd6 Rf7 Rd5
2bNb2R/NB2B1r1/P1pq1KR1/1N2Pp2/n1np1P1N/3QN3/R2q4/1n2b2k w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 b4 Qd5 Ra6 Qd1 Rb6 b3 Rb5 cxb5 a4 Bf4 axb3 Bh6 Ba6 Bc1 Bc8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 f4 d6 a4 g4 h4 b2 a5 f6 h6 g3 b6 g2 a6 b3 h5 Nc6 h7 Nh6 b7 Ng4 b8N Qe8 h6 Qf7 Nf3 g1Q Qd3 Qg2 Rg1 Na7 Nd2 b1B Ba3 b2 Ra2 Qd7 Nc4 Ne3 Nc6 Rg8 h8R Rg7 h7 Nb5 Na7 Nc3+ Kd4 d5 Nh4 Qh2 Bg2 Na4 Be7 Qd6 Be4 Bc2 Rg6 b1N Bf3 Qf2 Bh1 Qe1 Bf3 Qd2 Bg2 Nd1 e4 Ndb2 Ne3 Nc4 Nb5 Kd7 e6+ Kc6 e5 f5 Na7+ Kb6 Bg5 Bd1 e7 Bh5 e8N Be7 Nf6 Bd8 Ne4 Bf6 Nc3 Be7 Re6 Be8 Ncb5 Bf8 Bd8 Be7 Rg6 Bf6 Nf3 Bh4 Be7 Bf2 Nh4 Be1 Rg8 Ka5 h8N Kb4 Nc3 Kb3 Nf7 Kb4 Nd8 Kb3 Ra1 Kb2 Ncb5 Kc1 Nf1 Kd1 Ra2 Bg3 Rh8 Ke1 Be4 Kf2 Ne3 Kg1 Bf3 Kh2 Bh1 Be1 Bg2 Qe6 Be4 Nab2 Kc5 d4 Bb7 Qb6+ Kd5 Kh1 Bc5 Na4 Bd6 Rd7 Ke6+ c6 Ba3 Rg7+ Kf6 Qc7 Be7 Qd6+
1rB2qB1/Rb2pQ1R/r1BnprP1/P1B5/1R5K/q3Pn2/1p3nB1/1kNN4 w - - 0 1 illegal: No proof kernel
QK1k1b2/pp3BRr/Rq3NR1/2pq1n2/PP5P/2rq1R2/r7/NR2B1nN w - - 0 2 legal: proof: f4 f5 e4 d5 exf5 g5 c4 g4 cxd5 g3 Nh3 gxh2 Ba6 Bh6 Be2 Bf8 Kf2 h5 Rf1 h1R Bd3 h4 Be2 Bd7 Ng1 h3 Ke1 h2 Rf3 Be6 Ra3 Bf7 Rf3 Bh5 Rc3 Bg4 Rf3 Bh3 gxh3 Nh6 h4 Ng8 Kf2 c5 Ke3 e5 Ke4 Ne7 b4 Rh7 d4 Rh6 a4 Rb6 f6 Qc7 f5 Ng6 f7+ Kd7 f6 Rb5 d6 Bg7 Kd5 e4 f8R e3 f7 Bh8 Na3 Ra5 Bc4 e2 Nh3 e1Q Rb1 Qe8 Nc2 Qe7 Na1 Be5 Bd2 Qed8 Be1 Qb6 Rg8 Rg1 f8N+ Ke8 d7+ Ke7 Nh7 h1Q Nf6 Ra6 Nf2 Rg2 Qe2 Qf1 Nh1 Nc6 Qd3 Bd6 Rg7+ Kf8 Ke6 Nce7 d5 Nf5 Qd1 Be7+ d6 Nf4+ Ke5 Qd3 Bf7 Ra2 Qe2 Qe8 d8R Nh3 d7 Ng1 Rc8 Qed8 Rc6 Rc8 Qf2 Rc7 Ke6 Qe8 d8R Rd7 Rc8 Qed8 Qg3 Rd4 Qb8 Rc4 Qa8 Rc1 Rc7 Rc3 Rg6 Bd6 Ne8 Qg5 Kd7 Be7+ Kc8 Qg2 Re3 Qgd5 Nf6 Bd6 Kb8 Be7 Rh3 Bd6 Nd7+ Ke7 Nf6+ Kd8 Rf3 Bf8 Re6 Qbb5 Rce7 Rd6 Rc7 Rd7 Ra6 Re7 Be8 Rh7 Rcg7 Qa5 Bf7 Qb6
4B2N/3QB1br/1R2N3/1R1pkB2/4Bn1b/p1nPRnbr/P3rpKP/2B5 w - - 0 2 legal: proof: e4 d5 g4 c5 b4 h5 bxc5 hxg4 e5 Bd7 Qf3 Be6 Qd1 Bc8 f3 Qd6 exd6 e5 Kf2 e4 Ke1 e3 Ba6 Bf5 Bf1 Be4 fxe4 Rh6 Ba3 Rh4 Bc1 Rh8 c4 Kd7 c6+ Ke6 d7 a5 d8B g5 e5 f5 c5 b5 d3 f4 c7 g3 c8B+ Nd7 c6 b4 c7 a4 Ne2 g2 Na3 g1R Nc2 a3 Bb7 b3 c8R b2 Bf6 f3 Rc5 g4 Rb1 g3 Ra5 g2 Bc8 Ra7 Nf4+ Kf5 e6 e2 Kf2 Ne7 Bh4 Ng6 e7 Rh5 Bf6 Rh3 e8B Rb7 Ra6 Be7 Re6 Nde5 Rb6+ Rd7 Qe1 Bd6 Qb4 Bf8 Qb5 e1B+ Ke3 Bh4 Nd4+ Kg4 Be2 Re1 Rf1 g1B+ Rf2 Ne7 Ng6 Bh6+ Bg5 Bf8 Nh8 N7g6 Qc6 Nf4 Qb7 Rd1 Bf1 Rd2 Bg2 Bh6 Re6 Rf7 Be7 Rh7 Rf6+ Kg5 Bf5 Bg7 Qd7 Rc2 Bf8 Rd2 Rb6 Rc2 Ne6+ Kf6 Bh1 Re2+ Kd4 Re3 Re2 Bgf2 Bd6 Bfg3 Bc5 f2 Bhe4 Neg6 Re1 Ne5 Bb4 Re2 Bc5 Rd2 Ke3 Nc6 Kf3 Ke5 Re3 Re2 Ra1 b1N Be7 Nc3 Rab1 Nh5 R1b5 Nd4+ Kg2 Nf3 Bf8 Kf6 Bc5 Ke5 Be7 Nf4+
1Q3Nbb/6RP/q2p4/3bp1pP/RBBB1B2/RK1bb1P1/N3nr1k/3B2r1 w - - 0 1 illegal: No proof kernel
1B6/2B3rb/kBqRbr1K/3NpprP/p3PP1n/1r3N1R/2B4Q/1N2b1B1 w - - 0 2 legal: proof: g4 b5 c4 h5 a4 d5 cxd5 g5 axb5 h4 Nh3 Nd7 Ng1 Ndf6 h3 Nh5 gxh5 g4 Qc2 gxh3 Qa4 Rh7 Qd1 Rh8 d4 Kd7 Kd2 c5 Ke3 Kc7 Kf4 Kb7 Kg5 f5 f4 a5 b4 a4 b6 h2 b5 h3 d6 c4 d7 c3 d5 c2 d6 Bg7 Qd2 Rh7 Nf3 Qc7 d8B Qc6 d7 Ra6 Bc7 Bc3 d8B e5 e3 Bb4 Bd3 Be6 Rd1 h1R Qh2 Ba5 Ra3 Ne7 Rc3 Rf7 Kh6 Rg7 Ba3 c1R Bc2 Rhg1 Bc5 R1g4 Rd6 Ng6 Bd4 Rg5 e4 Nh4 Rb3 Be1 Bg1 Rd1 Ra3 Rd4 Re3 Rb4 Rc3 Rb3 Re3 Ka8 b7+ Ka7 b8N Bg8 Nd7 Bh7 b6+ Kb7 Qe2 h2 Nf6 h1B Qh2 Bg2 Nd5 Bf1 Rc3 Bc4 Re3 Ka8 b7+ Ka7 Rd3+ Rab6 b8B+ Ka6 Re3 Rb7 Bb6 Rbf7 Bdc7 Rf8 Nfd2 Rff7 Rh3 Rf8 Nf3 Rff7 Ne3 Be6 Nd5 Rf6+
3KR3/8/1p1PNbbr/BP1k1b2/1QR1p3/Pr3n1R/2N1rpBq/1R2R1Nr w - - 0 1 illegal: No proof kernel
5qR1/p4r2/1B3P1n/P5RR/2BrQ1pp/2PBnRb1/1R1rKn1N/1rk4N w - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 c5 b4 f6 bxc5 b6 h3 Ba6 h4 Bd3 h5 Bg6 hxg6 f5 Qd2 fxg4 Qd5 Qc8 Qd1 Qd8 f4 Ke7 a4 Ke6 e4 h5 a5 d5 g7 g3 c6 d4 c3 g2 f5+ Ke7 c7 d3 c8R g4 f6+ Ke6 Qc2 b5 Nd2 b4 Ne2 g1R Rb1 b3 Rb2 Bd6 Ng3 Na6 Nf3 d2+ Ke2 d1N Rc5 Nc7 Be3 Nf2 Nh2 Nh6 g8R Qf8 Rb5 Rd8 Bb6 Rh7 Qb1 Kd7 e6+ Kc6 e5 Nd5 e7 Ne3 e8R Rf7 e6 h4 e7 Bf4 Rh5 Rd4 Rgg5 Be5 Ra8 Kd5 e8B Kc4 Qe4 Bd6 Bd7 Bb8 Bf5 Bc7 Bh3 Rd1 Rf1 Bf4 Nh1 Bg3 Rb1 b2 Rb8 Qe7 Rbg8 Kb3 Be6+ Ka3 Bc4 Qf8 Bg2 Nh3 Rf3 Nf2 Bd3 Kb3 Bf1 Ka2 Rc1 b1R Bc4+ Kb2 Bd3 Ra1 Rc2+ Kb1 Ra2+ Kc1 Rb2 Rb1 Bc4 R1d3 Ke1 Rd2 Bfd3 Rd1+ Ke2 Rd2+
k4Bqn/1n3N2/NR1BnBR1/1pp3Bb/2BPpb2/PP6/RqQ2K2/n6r w - - 0 1 illegal: No proof kernel
N3B3/1qrnp2P/2B1R3/1P1nr1pB/BN3n2/1Q2R1pq/1B2Pb1R/n1K2k2 w - - 0 1 legal: proof: f4 b5 d4 g5 a4 c5 axb5 Bb7 dxc5 Be4 g3 h5 g4 Bg6 f5 hxg4 fxg6 g3 Kd2 f5 b4 d5 c4 Kd7 h4 Ke6 b6 Ke5 g7 Ke4 c6 a5 b7 f4 c5 d4 c7 f3 c8B a4 h5 d3 h6 f2 b5 a3 h7 a2 c6 Qd4 c7 Ra6 Rh2 Rd6 Bd7 Re6 c8B Rh6 Nf3 Qc5 Bg2 f1Q Bb2 Nf6 g8B Nh5 Bb3 Nf4 Na3 Qc6 Be8 Bg7 Nc2 Bd4 Ba4 Re6 Kc1 Nd7 b8R Bf2 Rb6 Qb7 Nb4 Ke3 Nd4 Re5 Bc6 Qh3 Ne6 Rg8 Rb1 a1N Nc7 Rf8 Na8 Rf6 Bd5 Rc6+ Qc2 Rc7 Bc6 Nf6 Bg4 Nd7 Bgh5 d2+ Kd1 Qa7 Qc4 Qb7 Ra6 Nb3 Kc2 d1N Qg8 Na1+ Kc1 Nc3 Qb3 Nb8 Be4 Nd7 Re6 Bg1 Bg2 Kf2 Be4+ Kf1 Bc6 Nc2 Ra1 Ncd5 Ra3 Na1 Qf3+ Bf2 Re3 Nc3 Qd5 Bg1 Qa2 Bf2 Qb3 Ncd5
nNr1N1BB/Pk4K1/4r2n/5NpB/1nB2p1P/4pPBb/R1r5/b1n1QR2 w - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 dxc5 h5 gxh5 d4 b4 Qd5 exd5 axb4 Ke2 Kd8 Kf3 Kc7 Ke4 b5 Ke5 f5 a4 g5 c4 d3 h4 b3 h6 d2 d6+ Kb7 d7 b4 d8N+ Ka7 h7 e6 c6 b2 c5 b3 f3 Ba6 c7 Bb7 c8B Ba6 c6 Nh6 Kf6 e5 c7 e4 a5 Nc6 Ra2 Nb4 Na3 b1N Bc4 b2 Qe1 d1R Bf4 e3 Ne2 Nc3 Bg3 b1N Nd4 f4 Rf1 Nd2 B8e6 Nb5 c8B Nb3 Bg8 Nc7 Bg4 Nc1 Bh5 Bc8 a6 Rd2 Nf5 Rc2 Nb5+ Kb6 a7 Bg7+ Kg6 Ba1 Nc6 Kb7 Nb8 Be6 Nc6 Rf8 Nb8 Rf6+ Kg7 Na8 Nc7 Bc8 Ne8 Bd7 Bgf7 Rf8 h8B Re6+ Nf6 Rc8 Bg8 Re5 Ne8 Be6 Ne7 Bh3 Nf5 Re6+
4b3/2KQbB2/N3Br2/N2R1P1p/rN2kp1R/n3N2N/Rbpp2PP/3n3q w - - 0 1 illegal: No proof kernel
1RN2N2/NN2R2n/1Q1p1b1P/2p2p1b/Kr2nrpq/5PB1/1B5P/nB1N3k w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 Nf6 cxd5 Ng8 d6 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 gxh5 Kd7 d4 Ke6 d5+ Ke5 d7 Kf6 d6 exd6 Nf3 Ke6 Ng1 Ke7 Kd2 Kf6 Kc2 Kf5 Kb3 Ke4 f3+ Kf5 e4+ Ke5 h6 f5 b6 a5 b7 g5 Bd3 c6 Na3 g4 Nh3 Be7 Nc4+ Kd4 e5 Na6 b8N Qc7 d8N Qd7 e6 Qa7 Rb1 Kd5 Nb6+ Ke5 N8d7+ Kd4 Re1 Qb8 Nf2 Nb4 Nf8 Nf6 Ka4 Nbd5 b4 Nh7 b5 Ndf6 Nb7 Bd7 Qb3 Ne4 Nc8 Be8 b6 Bf6 e7 Bh5 e8N c5 Nc7 Qa7 Nd1 Rg8 Bc2 Rb8 Re2 Rg7 Rb2 Re7 Bb1 Re8 Bf4 Re5 Bg3 Re8 Kb5 a4 Re1 a3 Re3 Nd2 Re7 a2 Qb4+ Nc4 Qa5 a1N Ka4 Nd2 Qa6 Ne4 Nb5+ Kd5 Rb3 Qa8 Nba7 Kd4 Nd8 Qb7 Rb5 Qd7 b7 Qe6 Rb3 Qg8 Rb2 Qg5 Qb6 Qh4 Rb5 Nc2 Rb4+ Kd3 Rb2 Ke2 Rb4 Kf1 Rb3 Ra8 b8B Kg2 Bc7 Na1 Nb7 Rb8 Bd8 Kh1 Rf7 Bg7 Bf6 Re6 Bfe5 Bf6 Bb2 Re5 Re7 Rd5 Rb4 Rd4 Nb5 Neg5 Nba7 Rf4 Ka3 Ne4 Ka4 Bd4 Rb3 Bf6 Qd8 Be5 Na5 Rb7 Rb4 Rd7 Rb8 Rb7 Qc7 Rb3 Nb7 Bf6 Qb6 Rb4+
4r1nN/NRN3nN/1RP2Pp1/N1q2P2/8/K2k1B2/1QpBppR1/b1rr1b2 w - - 0 1 illegal: No proof kernel
3bB3/PK1R2pB/2pRB1Pr/1Np1N1P1/r3N2r/1Bn4p/1n2k1q1/2Qb3B w - - 0 1 illegal: No proof kernel
1N4q1/Kp4Pr/R3p1N1/1nBN1N2/2p1k1rb/p4R2/1RP1Pb2/NBQ1r1b1 w - - 1 2 illegal: No proof kernel
2k1N1b1/BpN1n2B/n2p3p/4QrRr/pPRPP2N/nN2r2q/1N5K/R7 w - - 1 2 legal: proof: h4 c5 b4 g5 hxg5 e5 bxc5 Bg7 f4 exf4 a3 Bb2 Rh5 Bc3 Rh1 Bb4 axb4 Qb6 Ra4 Qa5 Ra1 Qd8 Kf2 a5 c4 f5 g4 h6 Kg2 a4 g6 f3+ Kh2 f4 g7 f2 g5 f3 g6 d6 c6 Qf6 c5 Kd8 c7+ Kd7 c6+ Ke7 Qe1 Bf5 c8R Qf7 c7 Nf6 g8N+ Kd7 g7 Bc2 Ne7 Bg6 g8N Qa2 Nd5 Ne4 Ngf6+ Ke6 d3 Nd2 Ne8 Nc4 Be3 Kd7 Nd2 Bh7 Nb3 Bg8 Ba7 Qa3 d4 Na6 e3 Rh7 Bd3 Re7 Bh7 f1R Qe2 f2 Nf3 Re5 Rg1 Rh5+ Nh4 Re1 Rg5 f1N+ Kh3 Ng3 Kh2 Nf5 e4 Ne5 Qg2 Ne7 Qg3 Nc4 Qe5 Na5 Ne3 Nc4 Nd1 Rb8 Nb2 Re3 Rd8+ Kc6 c8N Ra8 Nb6 Rb8 Ng7 Kc7 Rf8 Re8 Nd5+ Kc8 Nc7 Rd8 Rf3 Rf8 Nge8 Rf5 Rf2 Rf4 Rc2 Rf5 Nd2 Qd3 Nb3 Na3 Rc6 Qf1 Rc4 Qh3+
1Rq4k/1p1np3/3r1n1B/P3P3/1qBpq1N1/pK1NQN1b/1NP2R2/bN5R w - - 0 1 illegal: No proof kernel
3Kn1N1/q5P1/B3pqQR/1PBbr1bp/1p2Bp1N/6R1/kP2n2R/3n1RR1 w - - 0 1 illegal: No possible last move, all moves rejected
n3B1r1/p3PB1k/1bp4B/PQN3B1/3Pp1nR/2n1p3/1Rr3n1/1KBR1q1N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 c4 d6 cxb5 Be6 f5 d5 e4 dxe4 fxe6 Ba3 Ke2 Bc5 Ke1 Bf8 g4 h5 b4 f5 a4 e3 d4 f4 b6 h4 e7 Kf7 b7 Kg6 a5 f3 b5 h3 b6 e4 Nd2 h2 Bb5 Nf6 Qa4 f2+ Kd1 f1N Kc2 Rg8 Ne2 Nh5 Ng3 Ng7 Be8+ Kh7 g6+ Kh6 Qb5 c6 Nb3 Ne6 g7 Nd2 g5+ Kh7 Nc5 Na6 b8B Nb1 b7 Nc3 Bf4 Nac7 b8B Qd5 Ra2 Qf5 Rd1 h1N Rb2 Nf2 Nh1 Rh8 g8R Bh6 Rg6 Ng4 Rf6 Bg7 Rg6 Be5 Rh6+ Kg7 g6 Qf8 Bg3 Qf1 Bh4 Nf4 Bg5 Ng2 Rh4 Kg8 g7 Bd6 Ne6 Bc5 Bh6 Bb6 Nc5 Rh7 Bg5 Rh5 Bh6 Kh7 g8B+ Kh8 Bgf7 Kh7 Rb1 Rd5 Kb2 Rf5 Ka1 Rf2 Rb2 N7d5 Bbf4 Nc7 Bfg5 Rc2 Bd7 Rg8 Bde8 Na4 Ka2 Na8 Kb1 Nc3+
2RRB1R1/p3k1qp/pRprp2P/7K/RQ2rn2/3n2N1/N2P2Pb/1b1B3N w - - 0 1 illegal: Other
BRr1N1r1/5pP1/3PQ3/2p2pBN/1qN3n1/5pNp/k1PbR2r/N1nKR3 w - - 0 1 illegal: Other
1bq1b3/NqN1p1pN/Q5p1/Kr1NnnR1/5PPN/p7/2P1kpB1/2RR2B1 w - - 0 1 illegal: No possible last move, all moves rejected
8/Kp2NpR1/1r1B4/p1B3n1/Pn1qp2p/1R1QPBRn/4BPq1/1BN1b1k1 w - - 2 3 legal: proof: c4 a5 g4 d5 b3 h5 b4 c5 bxc5 dxc4 Qb3 h4 Qc2 Qc7 Qd1 Qd8 h3 g5 Qc2 Rh5 gxh5 g4 Qb3 g3 Qd1 Bg4 hxg4 Ra6 Nf3 Rh6 Ng1 Rh8 d4 Kd7 Kd2 Ke6 Ke3 Kd5 a4 e5 c6 g2 h6 c3 g5 c2 c7 Qd7 c8B Nc6 h7 Nge7 g6 Qe8 g7 Ng8 Rh3 Nf6 Ba3 c1N Qd3 Nd8 Bg4 Qe6 Nc3+ Kc6 d5+ Kb6 d6 Qd5 d7 Nb3 Bc5+ Kc6 Bf3 Nd4 Ra3 Ne8 Rb3 Nf6 Rg3 N8e6 d8B Nf4 Bde7 Ne4 Bed6 Rg8 h8R Ng5 Rh5 Nfh3 Rh7 Rh8 g8B Nc2+ Kd2 Qe4 e3 Nb4 Nd5 Qd4 Ne2 g1Q Rg7 Rh6 Bh7 Qg2 Nc1 Rf6 Bg6 Re6 B1e2 Rf6 Bgh5 e4 Ne7+ Kd7 Bd1 Ke6 Bc2 Rg6 Bb1 Rf6 Ng6 Kf5 Be2 Re6 Bhf3 Rf6 Bc7 Rb6 Be5 Qd7 Kc3 Be7 Kc4 Bf6 Bf4 Bc3 Bfd6 Be1 Be7 Rc6 Kb5 Qd4 Bd1 Re6 Bed6 Rf6 Kb6 Re6 Bfe2 Rf6 Rf3+ Kg4 Ne7 Rh6 Ka7 Rg6 Bc7 Rb6 B7d6 Ng1 Rf6+ Kh3 Rf4 Kh2 Rg4+ Kh1 Rg3 N1h3 Bf3 Kh2 Bde2 Kg1
2B3k1/N1ppn3/3NpRp1/2P1BR1n/1KN1NPR1/Q1b5/p2NP1bb/2n3q1 w - - 0 1 legal: proof: d4 f5 g4 fxg4 a4 b5 axb5 Nc6 d5 Nb8 d6 Bb7 Bf4 Ba6 Bc1 Bc8 Bg2 a5 Bg5 e6 Bc1 Nc6 Be3 Qf6 Nd2 Kf7 Qb1 Ba6 Kd1 Re8 Ke1 Bc8 Bf1 Nb8 Qd1 Qd8 Nb1 Re7 Bc1 Ke8 dxe7 Kf7 h3 Na6 h4 Nb8 h5 g6 h6 Nf6 Qd4 Rg8 Qd1 Rg7 hxg7 Ng8 Bd2 h6 Bc1 h5 Kd2 h4 Kc3 g3 e8N h3 b4 g2 f4 h2 b6 a4 b5 a3 b7 a2 b6 Qe7 Nd6+ Kf6 Nd2 Nh6 g8N+ Kg7 Kb4 Qf7 c4 Qf5 c5 Qc2 Ngf3 g1B Bb2+ Kh7 Qc1 Nf5 N2c4 Ng7 Nfd2 Ne8 Bg2 Bf2 Be5 Qd1 Qa3 Bg3 Nf6+ Kh8 Rg1 h1N Nfe4+ Kg8 Rc1 Qe1 Rd1 Nf6 Bf3 Bh2 Rg4 Qf2 Rdg1 Be7 Rg5 Qe1 R1g4 Qg1 Rf5 Nh5 Nc3 Bf6 Bd4 Qd1 Bc6 Bg1 Bb5 Bd8 Ba6 Bh2 Bg7 Bf6 Bh8 Bd4 Be5 Qc1 Kb5 Nc6 b8R Na5 b7 Nf2 Kb4 Qd1 Ra8 Qg1 b8N Bb7 Nc6+ Bc8 Kb5 Nd3 Na7 Nc6 Bb7 Ne7 Rb8 Nc1 Kb4 Kh7 Ba6 Bb7 Rbf8 Bd5 R8f6 Kg8 Bc8 Bg2 Nce4 Bc3+
4qnrk/p1N3R1/1RbQ1B1N/P2qr1b1/1N3P1q/1B3p1R/1K1nnP1N/6bN w - - 0 1 illegal: No proof kernel
NKN1q1Rr/4p3/R1nR1R2/1r2P2P/nnBqRp2/B2b2b1/3r1P2/1Q2rNk1 w - - 0 1 illegal: No possible last move
4qN2/1Kn1RNN1/p1p2b2/N5r1/R1nP1qQ1/P2r1Bb1/b1P1N1BB/3k1qq1 w - - 0 1 illegal: No proof kernel
r3KR1B/Nqrpb3/2N1n1p1/P6b/k1q2N2/Nq1nB3/1qBP1NP1/1Q2r1R1 w - - 0 1 illegal: No proof kernel
nB3b2/3k2K1/2Rq1p2/3b1PR1/1qB2R1b/p1pN1RPR/P1r3r1/n2QnNN1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 h4 g5 hxg5 Ba3 Qd6 Bc5 Qd1 Bf8 Kd2 d5 Kc3 a5 Kd4 c5+ Kc3 h5 b4 f6 e4 d4+ Kd2 c3+ Kd3 a4 f4 a3 g6 c2 b5 h4 e6 h3 b6 h2 g7 Be7 g3 Nh6 e5 c4+ Ke4 d3 b7 Qa5 Nd2 Nd7 b8N Nb6 Nd7 Qb4 Nc5 Ng4 Kf5 Bb7 Kg6 Ne3 f5 Bd5 Be2 c3 Nf1 d2 Nd3 O-O-O g8R Na8 Kg7 Ng2 Rb1 Ne1 Rb3 Qd6 Rb6 Rh4 Ra6 Rf4 Ra4 Rf2 Rf4 Rg2 Rf3 Kc7 Rf4 Rb8 Rf3 Rb2 Rf4 Bd8 e7 Kd7 e8R Be7 Rc8 Qb4 Rc6 Qd6 Nf2 Qb4 Bc4 Qd6 Qg4 d1N Nd3 Ne3 Qd1 Qb4 Bd2 c1B Rf3 N3c2 Bg5 Na1 Bf4 Bd8 e6+ Ke7 Ba6 Rbc2 Bb8 Bg5 Bc4 Bh4 Kh6 Nc7 Rg5 Na8 Kg7 Ke8 e7 Kd7 e8R Qd6 Re4 Be7 Ne2 Qb4 Rg1 h1Q Ref4 Qh2 Rh1 Qg1 Rh2 Qgc5 Ng1 Qd6 Rh3 Bf8+
3n1qn1/nr1RNp1P/2ppn1Rr/2bN2r1/B2P1P1B/2BbK2k/RQ1R4/4R3 w - - 0 1 illegal: No proof kernel
bQNRrnKb/RB1bpPn1/NRp4r/2q1Pk2/3B2pB/2R3n1/2P1n3/2R5 w - - 0 1 illegal: No proof kernel
2bK3b/qR2p1b1/1R5B/1B2PB1n/1b3p2/Nr2pQ2/N1BkPPR1/B1n1q2r w - - 1 2 illegal: No proof kernel
2NBkr2/1pRNnppr/b1BQ2PR/2Pn1q2/RN2q1R1/1Pn1n1b1/K7/R7 w - - 0 1 illegal: No proof kernel
6r1/1n1pkpr1/1r5R/2PP1n2/RQ2pbNK/Br1BNP2/3q2bB/B1qB3N w - - 0 1 illegal: No proof kernel
2nb3n/1B2p1pn/KRrNP1Bk/4Np2/P1r1QPq1/1R1b1r2/2B2p2/N2B2B1 w - - 0 1 illegal: Other
qR3n2/B1N2P1p/r1R1Q3/p1b5/KRbp3r/PB1PB1b1/1N2n1kp/2R3nR w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 bxc5 Qb6 Bb2 Qc7 Bc1 Qd8 f4 Kf7 c4 Kf6 g4 b5 c6 a5 g5+ Kg7 c7 e5 f6+ Kg6 c5 Kf5 a3 Ke4 g6 d5 c6 d4 g7 h3 f5 b4 f7 h2 f6 b3 Qe2+ Kf4 Kd1 Kg3 Nh3 e4 Nf4 b2 Kc2 e3 Kb3 Nh6 g8R+ Bg7 f8B Bd7 c8R Nf5 c7 Bb5 f7 Nh4 Nd3 Nf3 Nc3 b1N Nb2 Bc4+ Ka4 Nd7 Nd5 Ng1 Bc5 Nf8 Rb8 Ra6 Rb4 Qa8 c8R Rh6 Nc7 Rh4 Qg4+ Kf2 d3 e2 Bh3 e1B Qe6 Bh6 Bg4 Kg2 Ba7 Bg3 Bd1 Bf4 Bd2 Bd6 Bb3 Bc5 Rg6 Rg8 Rcb8 Rg7 Rh6 Rg6 Be3 Rf6 Qg4 Ra6 Qe6 Ne2 Rg6 Nd2 Rac1 Nf3 Qg4 Ne5 Rc6 Nf3 Qe6 Nfg1
kB2rB1b/p5r1/1Rn2BB1/P1r1Q1Np/4b1KN/1Pp1R1n1/2N3pP/1q2B2n w - - 0 1 legal: proof: e4 d5 exd5 f5 c4 b5 g4 bxc4 gxf5 Bd7 Qb3 Be6 Qd1 Bc8 Ke2 Kd7 Kf3 e5 d4 g5 a4 c5 a5 Kc7 f6 Kb7 f7 c3 d6 c4 d5 c2 d7 c3 d6 e4+ Kg4 e3 f4 e2 f5 e1N f6 h6 Na3 Nd3 Nh3 Nf4 Bd2 c1R Bd3 Ne7 Nc2 Nbc6 Qe2 Nf5 Rb1 Nh5 Qe5 Qb6 d8B Bg7 f8B Nhg3 f7 Rg1 d7 Rb8 Bc7 Ka8 d8B Bb7 Bf6 Re8 Be1 Rg8 Qe3 Bh8 Qe5 Rg7 Bb8 Rf1 Rg1 Nh1 Rg3 Qb5 Re3 Nfg3 Bg6 Rf5 b3 Qd3 Rd1 Qf1 Rd6 Qd3 Qe7 Rc5 Qe5 Qd1+ Re2 Qb1 Re3 Nd4 Rb6 Nc6 Kf3 g4+ Kf4 Ne4 Ng5 g3 Kg4 g2 B8e7 Neg3 f8N Nd8 Nfh7 Nf7 Nf3 Nd8 Nhg5 Be4 Bf8 Nc6 Nh4 h5+
nrN2b2/rp3Qp1/3N3B/b5nn/p4BBk/3RB2p/1PKR1NPP/5qBb w - - 0 3 illegal: Other
nB2bB1k/pB2p2B/3QR3/P1N1rpRn/3NP1pr/Nr1K1P1b/2B5/2b1b3 w - - 0 1 legal: proof: d4 h5 g4 hxg4 b4 c5 dxc5 d6 c4 Nc6 b5 Nf6 b6 Nb8 c6 Qc7 bxc7 Ng8 c5 Bd7 Be3 Be6 Bc1 Bc8 Kd2 b5 h4 g5 a4 d5 e4 b4 a5 d4 h5 d3 h6 g3 f3 b3 h7 b2 Rh6 g2 Na3 b1B Re6 Na6 Ne2 g1B Nd4 Ba2 Be2 Bd7 c8B Rb8 c7 Bh6 c6 Kf8 Bb7 Kg7 c8N Nf6 c7 Be8 Nd6 Nh5 c8B Nc7 Kc3 f6 Bf4 d2 Bd3 Bf2 Bc2 Na8 Kd3 Be1 Rb1 Bd5 Rb5 Bdc6 Bg3 Bcd7 Rf5 Rg8 h8B+ Kh7 Qe2 d1R+ Qd2 Rb1 Qd1 Rb5 Bg7 Re5 Bf8 Kh8 Qd2 Rg7 Qb4 Rh7 Qc5 g4 Qb6 Bc1 Rg5 Ba4 Bd7 Bg6 Be8 f5 Bf7 Rh6 Bg8 Bge8 Bh7 Beb5+ Ndc4 Be8 Nd2 Bb3 Qd6 Bc4+ Ke3 Bf1 Bf4 Bg2 Kd3 Bh3 N2b3 Nf6 Nc5 Rh4 Bc6 Rb2 Bb7 Nh5 Qd7 Rd5 Bb8 Re5 Qd6 Rb3+
3N3k/2B1Rnpp/b1pr2B1/P1rnR3/2qpRbPB/1n2Q2B/2KPpB2/4N3 w - - 0 1 illegal: No proof kernel
2nRRB2/pp2p3/4rn2/1QNB2bk/1Pp1P3/5bRr/q3NpP1/N1N1NnK1 w - - 0 1 illegal: No possible last move, all moves rejected
1Bq5/1N2BP1P/1K1B3r/1nn2k1n/2N1Nb1P/3brqR1/1N2Q3/2q1R1bR w - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b4 h5 gxh5 a6 b6 Kd7 b5 Nc6 b7 Ke8 b6 Nb8 Bb5+ axb5 Ke2 Kd7 Ke3 e5 h4 c5 f4 g5 d4 e4 h6 b4 h7 b3 d6 c4 f6 Ke6 f7 c3 f5+ Kf6 d5 g4 Kd4 g3 Kc5 e3 Nd2 c2 Qe2 g2 Ne4+ Ke5 f6 b2 Nh3 b1Q Nhf2 g1B Nd1 Bg7 f8B Bh6 d7 Qb3 d6 Nc6 b8R Bf4 b7 Kf5 f7 Nd4 Ba3 Nb5 Nb2 Nf6 Re1 Nh5 Be7 Ra6 Ra8 c1N b8B Re8 Bb4 Rb6 Ra3 Qd1 Rd3 Ba6 Rc3 Nc7 Rb3 Qc8 d8N Bd3 d7 Rh6 Nc6 Nb5 Bed6 Ree6 d8N Re7 Ra3 Nb3+ Kb6 Nc5 Na5 Re8 Ndb7 Re5 Qc2 Qf3 Nac4 e2 Qd1 Bb1 Re3 Bd3 Qc2 Qg2 Rg3 Qf3 Bc3 Re8 Bf6 Re6 Be7 Re5 Rf1 e1Q Qe2 Qc1 Re1 Ree6 Nf2 Re3 Ne4 Qe8 Rg8 Qf8 Rg3 Qc8
4qrR1/rn2nq2/B3kPRP/2B3B1/2P1NBqn/3NN3/R1Q1r3/n1K2b2 w - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 a4 a5 d4 c5 e4 cxd4 exf5 e6 axb5 a4 Ke2 Bc5 Kd2 Bb6 Ke1 Ba5 bxa5 Ra6 Bh3 Ra7 Bf1 Ra8 Kd2 Ke7 h4 d5 f4 g5 a6 g4 a7 g3 h6 d3 b6 d4 h5 e5 h7 g2 h6 e4 f6+ Ke6 b7 a3 f7 a2 f8B Qe8 Nh3 g1N Nc3 Na6 b8B Ne7 Nf2 Nc5 Be5 Rg8 h8R Nb7 Rh5 Bd7 Rg5 Bb5 Rg4 Rg7 Rg8 Qf7 Qe2 e3+ Kd1 d2 Nd3 Qe8 Ne4 Nf3 c3 Rb8 a8N Nh4 Nb6 Rd8 Kc2 d1Q+ Kb2 Rh7 Qc2 e2 Nd5 e1R Ne3 Qf3 Bd2 Re2 Kc1 Ba6 Bf6 Ra8 Bg5 Ra7 Rg3 Rh8 Rg2 Qfh5 Rg1 Qhf7 f5+ Kd7 f6 Ke6 Bf4 Bb5 R1g6 Ba6 Rb1 a1N Rb2 Bc4 Ra2 Bb5 Nb4 d3 Bg5 Nc6 Bc5 Ne7 Ng4 Ba6 Bdf4 Bb5 Ne3 d2+ Kb1 d1Q+ Kb2 Rh2 Nd3 Qg4 Kc1 Ba6 R8g7 Rf8 Rg8 Bc4 Ne5 Bb3 Ba6 Re2 Nd3 Bd5 c4 Bc6 Nd6 Bg2 Ne4 Bf1
bB3n2/nb1N4/1QNK2n1/PPr4r/B1B5/2k1r1nB/R3P1NR/2b2bR1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Qd6 Rh4 Qa6 Rh1 Qa5 bxa5 Kd8 Ra2 Kd7 Ra1 Ke8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 f5 g4 c5 d6 h5 d5 a3 g6 a2 d7 f3 d8R c4 g5 c3 g7 h4 g6 h3 d6 c2 d7 f2 Nd2 h2 Kd5 f4 Ngf3 Nc6 Ba3+ Kc3 Bh3 f1N Ne1 c1R Rg1 h1B+ Ng2 f3 Nb3 f2 Nc5 Nge7+ Kd6 Na7 g8B Ng3 g7 f1B Bc4 Bb7 g8B Bh6 Bb3 Rh7 Bgc4 Ng6 Rh8 Re8 d8N Re3 Nc6 Bg5 Qd5 Rh5 Nd7 Rc2 Ba4 Rc1 Rb1 a1N Rb2 Nb3 Qc5 Nd4 Ra2 Ne6 Qb6 Nef8 Bc5 Rc2 Rh7 Re7 Rh8 Bc1 Be3 Ree5 Bg5 Ba8 Bd8 Rc5 Bc7 Rb2 Bb8 Rb4 Bg8 Re4 Bc4 Re3 Bg4 Rhe5 Rh2 Rh5 Bh3 Ne7 Nce5 Nh7 Nh4 Bhb7 Ng2 Ng6 Nc6 Nhf8
3n4/1NPR4/2r1B1pn/q1qP1P1R/bBB5/NN4RK/bQr5/R1bkn3 w - - 0 1 legal: proof: e4 d5 a4 b5 axb5 c5 g4 h5 gxh5 f5 d4 Nc6 dxc5 d4 Qf3 Qd5 exd5 Nb8 Qe4 fxe4 c4 Kf7 b4 Kf6 f4 Kf5 Kf2 Kg4 Kg2 e5 h4 a5 h6 d3 h7 g6 c6 e3 f5 d2 h5 d1B h6 a4 c5 a3 b6 a2 b5 e2 c7 e1Q b7 e4 c6 e3 b6 e2 Ba3 Nf6 Nf3 Qa5 Bb4 e1Q Rh5 Ba4 Na3 Bd6 Bc4 Qe7 Nd2 Bf4 Nb3 Bc1 Rh3 Re8 h8Q Qec5 h7 Ng8 Qb2 Ra6 h8R Nh6 Rg3+ Kf4 Kh3 Re2 Rd8 Rc2 Rd6 Bd7 c8B Be8 c7 Nc6 b8R Nd8 b7 Beb5 Be6 Rc6 Rd7 Ba6 Rg2 Ke3 Rg3+ Kf2 Rc8 B6b5 b8N Ba6 Rd3 Ke2 Re3+ Kd1 Rg3 Ndf7 Rh8 Nd8 Bd3 Bc4 Na6 Ng4 Rh5 Nh6 Rb1 a1N Bf1 Qf2 Nac5 Qd4 Nb7 Qdc5 Nd2 Ba2 Nb3 Rg2 Bc4 Nc2 Ra1 Ne1 Qc3 Rf2 Qb2 Rc2
rkB3R1/1pN1R1q1/P2RPB2/PnB1RN2/n3n1bb/8/2K1n3/1rrNQ3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 d5 a4 Kd7 c4 Kc7 h4 f5 e4 g5 c6 f4 a6 d4 e6 d3 e7 g4 e8N+ Kb6 e5 Ka7 c7 f3 h6 g3 h7 g2 a5 f2 c5 Nc6 h5 Qd4 h6 Nd8 c6 Qc4 Nf3 g1N Qe1 Ne2 Rh5 Bb4+ Nc3 Nf6 Bh3 Rf8 h8R Nf4 h7 Bd6 Rg8 Be6 c8R Be7 h8B Nf7 c7 N4d5 Nd1 Qg4 Ba3 Nb6 Rd8 Na4 c8Q Qg7 Nd4 Nd6 Nf5 Nb5 Nc7 f1N+ Kc1 d2+ Kc2 Rf7 Rd6 Ng3 Rh7 Ne2 Bc5+ Nb6 Ra3 Ne4 Re3 Bh4 Rh5 Rf6 Rg5 Rg6 Rh5 Rg1 Rh7 Qg3 Re7 Bd7 Bf6 Qg7 Qe8 Rh1 Qg6 Bc8 Qgg1 Kb8 Qgf1 Nc1 Qc4 Ne2 Qc3 Rf1 Qa1 Rh1 Qc1 Na4 Nh6 Qg3 Qg1 Qf4 Nb2 Qf2 Qa1 Qg3 Qf2 Rb1 Qe1 Ng5 Nd1 Rb3 Qc1 Rb1 Ne8 Bd7 Nc7+ Be8 Bc8 Bh5 e6 Bf3 Re5 Ne4 Kd3 Qg7 Nf5 Bg4 Kc2 dxc1R+
2r2Nr1/B4NN1/q1R3rB/6K1/P4R2/1qbb1N2/RPP2bpr/1Bk2q1Q w - - 0 1 illegal: No proof kernel
2B3K1/N1PrrP1n/1R3pR1/r1k1N2b/3p2bB/n1Bq2RR/3P2bN/3Q4 w - - 0 1 legal: proof: e4 c5 b4 g5 bxc5 b5 a4 Qc7 axb5 Bg7 h4 gxh4 e5 Qd8 e6 Bf8 f4 Bg7 Na3 Be5 Rb1 f6 Ra1 Kf8 Kf2 Qe8 Nb1 Qf7 exf7 e6 Ke1 Ke7 Ra6 Ba1 Ra4 e5 Ra3 e4 Ra4 Bd4 Ra1 Be5 fxe5 Bb7 Nh3 Ba6 Ng1 Bc8 Kf2 a5 Ke3 h5 Kf4 d5 c4 e3 g4 d4 e6 e2 Kf5 e1Q Kg6 h3 Kg7 h4 b6 a4 g5 h2 b7 a3 g6 a2 c6 Kd6 c7 h3 c5+ Kd5 e7 Bd7 e8R Be6 c8N Qe2 c6 Ra5 Nf3 Bg4 Na7 Qa6 Re3 Nd7 b8B Qd3 Na3 Ne5 Nc4 Kc5 Rb1 a1R Rb6 Ne7 Bb2 Rd8 Bc3 Rd7 Kf8 R1a3 g7 N7g6+ Kg8 Nf8 Rg1 h1B Nh2 Re7 Rgg3 Bg2 Be2 Bh5 Bg4 Nh7 Bc8 Bgf3 Bc7 Bfg4 Ref3 Ng6 Bf4 Ne5 Bg5 Rd7 c7 Rb3 Ne3 Nc4 Bh4 Na3 Nc4 Rb1 Ne5 Rb3 Nf1 h2 Rh3 h1B Rfg3 Bg2 Nh2 Qe2 Kh8 Qb5 g8R Qd3 Rg6 Rb1 Kg8 Rc1 Qb3 Re1 Qd1 Re2 Nc4 Re6 Ne5 Ree7
K3BR1R/1b1r2PN/1N1PN2R/2qq1B2/np1r1p2/1k1n1NQ1/3nP1B1/3b4 w - - 0 1 illegal: No possible last move, all moves rejected
5b2/4P3/1rPrPQK1/npkB1RNR/qrp3n1/4RB1N/1n2NB2/2nB4 w - - 0 1 legal: proof: f4 g5 h4 e5 hxg5 a6 fxe5 Bc5 b4 Bf8 b5 axb5 c4 b6 d4 Qe7 c5 Qf6 cxb6 Qd8 d5 c5 Rh6 Bb7 Rh1 Bc6 dxc6 Bg7 Qc2 Bh6 Qd1 Bf8 Kd2 Ke7 Ke3 d5 Kf4 f5 a4 h5 e4 h4 g4 h3 a5 h2 a6 d4 e6 Kd6 e7 c4 a7 d3 e5+ Kd5 b7 d2 g6 Nf6 Kg5 f4 g7 f3 g8B+ Kc5 Be2 f2 Nc3 f1R Kg6 Nh5 g5 Rf5 Ra3 Na6 b8R Ng7 Bd5 Rf4 Bdf3 Qd5 Nh3 Nf5 Qf1 d1N Be3+ Rd4 Bf2 Nb2 Bd1 Nh6 Ne2 Ng4 Re3 Qd8 Rb7 Qa5 Rd7 Rb8 a8N Qa4 Nc7 Rb6 Rd6 Rd3 Rf6 Rb3 Rf5 Rg8+ Kh5 Rg7 g6 Rb4 Kg5 Rh7 g7 Rh6 g8B Rf6 Bgd5 Rd6 Rg1 h1N Rg3 Rd8 Kg6 Rd7 Rg1 Ng3 Rh1 Rd8 e6 Rd6 Ng5 Ne4 Rh5 Nd2 Qe1 Nb3 Qc3 Na5 Qf6 Rb3 Ne8 Nb4 Nh3 Rd7 Nd6 Na2 Nf7 Rd6 Nfg5 Rb4 Bg2 Nc1 Bh1 Nbd3 Bhf3 Nb2
Q3q1B1/3n2bP/N4PR1/1R4P1/1Bn1NR2/p2B1q1q/np4q1/BK1r2Nk w - - 0 1 illegal: No proof kernel
2R1n1nB/1QqqRN1p/3bPb2/3R2P1/b1N1B3/3Pp1nk/Kb1R3B/1N6 w - - 0 1 legal: proof: f4 a5 c4 d5 h4 b5 a4 Kd7 axb5 Nf6 cxd5 e5 Ra3 Ra6 Ra1 Re6 h5 e4 h6 Re5 fxe5 gxh6 Na3 h5 Nb1 Rg8 d3 Rg3 d4 Rd3 exd3 h4 Qh5 Bh6 Qd1 Bg7 Kd2 c5 Kc2 h3 Kb3 e3 g4 h2 b6 a4+ Ka2 a3 b4 c4 d6 Ke6 d5+ Kd7 b7 c3 b5 c2 b6 Qc7 g5 Nc6 b8B Ba6 b7 Ne8 Nf3 f5 Bb2 c1B Qb3 f4 Bg2 Bf6 Nfd2 f3 Rd1 h1Q Nc4 f2 Rd2 f1N Be4 Ne7 Bd4 Ng8 Bc3 Kd8 d7 Ke7 d8R Bb5 d6+ Ke6 d7 Qh3 Rc8 Ng3 d8N+ Ke7 Bd4 Qhd7 Nf7 Ba4 e6 Bb2 Rd8 Be5 Qb4+ Bd6 Bh8 Bf6 Ba7 Bb2 b8R Bf6 Rbc8 Bb2 Be5 Kf8 Bf4 Kg7 Qb7 Bf6 Bg2 Kg6 Bd4 Kf5 Be4+ Kg4 Bde5 Bfe7 Bh8 Bf6 Be5 Ng7 Re8 Kh3 Re7 Ne8 Nc3 Ne2 Bh2 Ng3 Rf1 Qdd8 Rf5 Qdd7 Ka1 a2 Rd5 Bb5 Kb2 a1B+ Ka2 Bb2 Nb1 Ba4
1B2nr2/qn2Nkp1/NPQ1Rp1q/8/N1K1Pr1B/R3R1P1/1r1qq2B/6B1 w - - 0 1 legal: proof: a4 d5 c4 h5 cxd5 b5 axb5 h4 e3 h3 d6 Bd7 g3 Bc8 Bg2 hxg2 d4 e5 d5 e4 Qa4 Be7 Qd1 Bf6 f3 Bd4 exd4 e3 Na3 Bf5 Nb1 Be4 fxe4 Rh6 Ra4 Rh3 Ra1 Rh8 Ke2 a5 Kd3 c5 h4 a4 b4 e2 d7+ Ke7 h5 e1Q b6 a3 b5 a2 h6 Qf8 d8N Qf1+ Ne2 g1R h7 Ra3+ Nc3 Kf6 d6 Qf5 b7 Qd7 d5 Qc8 d7 Qc7 d6 Ne7 Kc4 Qc8 Na4 Nd5 Qc2 Na6 b8B Nf4 Nd4 Rf1 N8c6 Qfd8 Ne7 Nh5 Ne6 Rb3 Nc7 Rf8 h8R Rf4 Be3 Rb2 Rhe1 Qb7 Bg1 Qa7 Kd5 c4 Bh2 c3 Re3 Nc5 Na6 Nb7 Kc4 Ke6 Rh6+ Nf6 Qc1 Qdb6 d8B c2 d7 Qd6 Bb6 Qd2 d8B Qe2+ Rd3 Qd2 Bbg1 Qaf2 b6 Qfe2 Rh5 Ne8 Re5+ Kf6 Qd1 c1Q+ Qc2 Qde3 Qc3 Qcd2 Re1 a1Q Qc2 Qh5 Ra3 Qh6 Qc1 Qef2 Ree3 Qfe1 Nc6+ Kg6 Bh4 f6 Ne7+ Kf7 Re6 Qde2+ Kd4 Qa5 Qc5 Q1e1 Qc6 Q2d2+ Kc4 Qed1 N6c5 Qa7 Na6 Q1e2+
R6r/P1KBNP1N/3R4/p1P3Nr/1knrN1Q1/rp3BrR/1b3n2/2Br4 w - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 hxg5 f5 e4 Nc6 exf5 Nb8 b4 b6 a5 Nh6 a6 Ng8 b5 Bb7 axb7 a5 Ra2 Nc6 Ra3 Qb8 Ra4 Qa7 Ra1 Qa6 bxa6 Nb8 Ke2 h5 Kf3 e5 Ke4 Ke7 Kd5 h4 f4 h3 c4 b5 g4 b4 g6 d3 g7 d2 c5 e4 g5 h2 a7 b3 g6 e3 Bg2 e2 Bf3 e1R Nh3 Nh6 g8B Bg7 Nc3 Ng4 Ne4 Nc6 b8R Nce5 Nhg5 Nc4 Be6 Bb2 g7 Nf2 Rd8 d6 Kc6 d5 Kc7 d4 Bd7 d3 Qe2 d1R Ra4 Nd6 Rd4 Nc4 Rd6 d2 Rf8 Rh3 Rh8 Rg3 g8N+ Kf8 f6 Re8 Rg1 h1R f7 Rh5 Ne7+ Kg7 Rhh6 Rh8 f8N Rf1 f5 Rfe1 Ngh7 Kf7 f6 Rf1 Rg2 Rfh1 Ne6 R1h4 Nc3 Rd4 Ne4 Rdh1 Rh2 d1R Rg6 Rhe1 Rg8 Reg1 Ra8 Rge1 Bg5 Ra1 Rh3 Red1 Bc1 Ra3 Nc8 Kg6 f7 Kf5 N6g5+ Ke5 Rc6 Kd5 Re6 Nh1 Qg2 Nf2 Ra6 Nd2 Ne7+ Kc4 Rd6 Kb4 Qg1 Rg4 Qg3 Nc4 Qh4 Rgg1 Qg4 Rg3
1N5B/1P2p1RN/4p3/2B2b1b/n2K1r2/Q1BPPN1k/1q2Np2/RRr3nb w - - 0 1 illegal: No proof kernel
1QR2N1q/3B1pBb/1N6/5pk1/2P3qN/1r1R1PP1/KN3rnp/nR1B1n2 w - - 0 1 legal: proof: d4 c5 dxc5 a5 a4 g5 b4 b5 axb5 a4 h4 e6 hxg5 Bd6 Qd3 Bc7 Qf5 Ba5 bxa5 exf5 Kd2 Ke7 Kc3 h5 Kb2 d5 e4 a3+ Ka2 h4 c4 d4 a6 d3 g3 d2 g6 Kf6 a7 d1Q g7 h3 c6 h2 b6 Q1d3 e5+ Kg6 c7 Q3d7 e6 Q8e7 b7 Na6 b8N Qee8 e7 Bb7 c8R Nf6 Bh6 Ne4 Nf3 Nac5 Nc3 Nd3 Nd1 Nd2 Rb1 Qd4 Nd7 Nf4 Be2 Nf1 Nb2 Ng2 Bd1 Qg4 g8Q+ Kh5 Nh4 Bf3 Bg7 Kg5 Nf8 Be2 Ka1 a2 Rg1 Rb8 a8N Rb3 Nb6 Rh6 Qh8 Rd6 Rh1 Qd8 e8B Rd2 Bd7 Qf6 Qg8 Qh6 Rg1 Qh8 Rh1 Qh3 Rg1 Bh5 f3 Bg6 Rh1 Qg4 Rg1 Nf4 Rg2 Rc2 Rd2 Bh7 Rd3 Ng2 Nfg6 Kh5 Qd8 Rd2 Nf8 Rf2 Qc7 Kg5 Qd6 Rc3 Qb8 Rb3 Nd5 Ra3 Nb6 Rc3 N2a4 Nd2 Kb2 a1N Ka2 Nf1+ Nb2 Rb3
4N3/PRqp1R2/1R1NPb1N/BnBB2Pp/6r1/pq2n2B/4k3/1QK1qb2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 axb5 e5 d4 cxd4 f4 a4 fxe5 Ra5 bxa5 Bb7 Bf4 Ba6 Bc1 Bc8 Kd2 Ke7 g4 Ke6 e4 f5 c4 h5 c5 d3 b6 f4 a6 f3 c6 f2 a7 a3 g6 Bg7 b7 Qa5+ Nc3 Nh6 c7 Nf7 g5 Qb6 Nge2 Qc5 Rb1 Rh6 Bh3+ Ke7 e6 Kd6 e7 Ke5 e8N f1Q Nb5 Qf5 Ng3 Kf4 e5 Na6 b8B Bh8 g7 Nb4 g8B Ba6 c8R Rb6 Bd6 Qe4 Rc7 Bf6 Nf5 Nc2 Nh6 Ne3 Rb7 Qc7 Bc5 Nd6 Bd5 Kg3 e6 Kf2 Rg1 Qc4 Bb2 Qb3 Bc3 Rc6 Rb2 Rb6 Kc1+ d2+ Kb1 Rc6 Ba5 Rb6 Qc2 Ke2 Rf1 Rc6 Bcb6 Rc4 Bc5 Rg4 Qc1 Ndf5 Nbd6 Nd4 Rf5 Nb5 Qc2 Bd8 Rf7 Bf6 Qc1 Qa4 Rb4 d1Q Rb6 Qe1 Qd1+ Kf2 Kc1 Qb3 Rb7 Nc3 R4b6 Bf1 Bcb4 Nb5+ Bc5 Qeb4 Qd3 Qe4 Qb1 Ke2 Bc6 Qeb4 Bd5 Qe1+
5bB1/Rnp1k2p/4Nr2/1n6/1RKq2N1/4PNRb/P1p1BPQ1/4nnBN w - - 0 1 legal: proof: c4 a5 h4 d5 b4 dxc4 bxa5 g5 hxg5 e5 e3 b5 e4 f5 exf5 e4 Qe2 e3 Kd1 Ra6 Kc2 Re6 Qe1 e2 Qd1 Re3 dxe3 Bb4 Qd2 Ba3 Qd1 Bf8 Kc3 e1N g4 Be7 g6 Ba3 f6 Ng2 f7+ Ke7 f8N Ke8 a6 Ke7 g7 Qd6 g5 Bc5 g6 Bf5 a7 Nf4 a8R Kf6 Bb2 Bc8 Ne2 Ke7 Ne6 Nh6 g8B Ng4 g7 Nd7 Qd5 Ng2 Nd2 Ne1 Ng3 Nh2 Be2 Nf1 Nf3 Ba3 Rg1 b4+ Kd4 c3 Ra7 b3 Rb1 c2 Kc4 Nc5 Nh1 Nb7 Be5 b2 Bh2 Qe5 Rg3 Qd4+ Kb3 Bc5 Bg1 Bb4 Nfg5 Bd7 Qg2 Bc5 Nf3 Bc8 Rd1 b1N Rc1 Na3 Rb1 Nb5 Rb2 Qd6 Kc4 Qe5 Rb4 Bd7 Ned4 Bh3 Ne6 Qa1 Bf7 Rf8 g8N+ Kd7 Nf6+ Ke7 Bg8 Qd4+ Kb3 Rf7 Ng4 Rf6 Bc4 Kd7 Bd3 Bf8 Be2 Qd6 Kc4 Ke7 Nd2 Qb6 Nf3 Qd4+
N2B1knR/1pR2pq1/1pP2RBr/nP5p/4Pr2/NQ5n/K5BN/n3N3 w - - 0 1 legal: proof: f4 e5 fxe5 c5 d4 Qb6 dxc5 Qc6 g4 Qa6 g5 Qb6 Qd6 Qd8 Qb6 axb6 h3 h5 Nd2 d6 Nb1 Bg4 Kd2 g6 Ke1 Bh6 gxh6 g5 Be3 Bf3 Bc1 g4 Bg2 g3 Bf1 Bg4 hxg4 Qe7 Nf3 Qf6 Ng1 Qd8 Kd2 g2 Kc3 d5 Kb3 d4 e4 d3 c4 d2 a4 d1N c6 Qd3+ Ka2 Nd7 b4 Qc3 c7 Rc8 a5 Ngf6 c5 O-O a6 Qe1 h7+ Kg7 h8R Rfd8 a7 Nd5 a8N N7f6 b5 Rd6 g5 Qh4 g6 Nb2 e6 Qh3 e7 Re8 c8B Red8 e8Q Qf5 Nf3 g1N Bg2 Nd7 Qe6 Ne3 Qb3 Nf8 Na3 Qe5 Bf5 Rd3 Ne1 Nh3 Rf1 Nc2 Bg5 R8d6 Bd8 Rf3 Rc1 Rf4 Rf2 Nh7 Rf1 Kh6 g7 Na1 g8N+ Kg7 Nf6 Nc4 Ng4 Nf6 Bg6 Na5 Nh2 Ng8 Rf3 Kf8 Rc4 Rg4 Rf6 Qg5 c6 Re6 Rd4 Qh6 Rd7 Qg7 Rf3 Rf6 Rc7 Rd6 Bf5 Rh6 Bg6 Rh4 Rf6 Rf4
2B1B3/N1RNP3/1PQR4/K4n2/rpRp2p1/p1Pqp3/5kqb/1BB2Nr1 w - - 0 1 illegal: No possible last move
rb2k2r/P2R1r2/nB1B2b1/2NR1N2/1nB1n1K1/1b1q1NR1/2RQ1PP1/1b3b2 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 h5 Kf3 d5 a4 b5 c4 e5 c6 h4 g6 d4 c7 e4+ Kg4 d3 a5 b3 g7 b4 a6 h3 a7 b2 c5 h2 c6 e3 Nd2 b1B Nb3 d2 Ra5 e2 Nf3 e1N Nc5 b3 Bc4 Bd7 c8N b2 c7 Bb5 f6 Na6 Ne7 Nd3 c8R Ndb4 Nf5 Bd6 Qe2+ Be5 Rd1 h1R Rc7 Qd3 f7+ Kd8 f8B Ke8 Qe1 R1h7 Bd6 Bc2 Rd7 b1B Ra2 Bb3 Rc2 Nf6+ Kg5 Ne4+ Kg4 Bf4 Ba3 Be5 Bc7 Bg3 Bb6 Bb8 Qe3 Rh6 Rd5 Rf6 g8R+ Rf8 Rg7 Rf6 Rgd7 Rf7 Re1 d1B Qd2 Be2 Rh1 Bc6 Rh3 Bf1 Rg3 Ng5 R5d6 Be4 Rd5 Nh7 Nh6 Bg6 Nf5 Ng5 Ne4 Nc6 Bd6 Ncb4 Nc5 Ne4
1k1n3q/1b1n4/1br3b1/q3N2R/Q1P1Rb2/B1bBN2P/RPKr3R/1BN4r w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 a5 f4 d5 c4 Kd7 c6+ Kc7 f6 g5 f5 e5 f7 d4 f6 d3 Nh3 e4 Nf4 a4 Ne2 a3 Nd4 a2 Nf5 g3 Qa4 g4 Nc3 g2 Ne7 g1R Nf5 g3 Ne3 g2 Ne2 Bh6 f8N Nd7 f7 Ra6 b6+ Kb8 b7 Ne7 Ng6 Bf4 f8R Rh7 Rf6 Qh8 Ne5 Rh6 Kc3 d2 Rf5 d1B Bd2 Bc2 Nc1 Rh7 Be2 Rd1 Bd3 g1B Rh5 Bb1 Kb3 Bf2 Bb4 Rh6 Ng2 e3 Ba3 e2 Ne3 e1B h3 Bc3 Rh2 Re6 Bf1 Bg6 Bd3 Rh1 Kc2 Rd6 Bf5 Rdd1 c7+ Ka7 b8R Bb7 c8B Nc6 Bd3 Nd8 Qb4 Rc6 Qa4+ Kb6 Ra8 Kc7 Rb1 a1Q Ra6 Nf8 Bcf5 Nd7 Ra5 Qa2 Ra1 Kc8 Rd5 Bg1 Rd4 Kb8 Re4 Bf2 Bf8 Qa3 Ra2 Qb4 Bc5 Qa5 Ba3 Bg1 Kb3 Bf2 Bb1 Bg1 Kc2 Bf2 Rd4 Bg1 Bd3 Bf2 Re4 Bg1 Nf1 Bb6 Ne3 Rd2+
2nR1N2/r1b1Q2N/1q1PN3/3PKBq1/r1P1N2q/nk3q1R/n2Bb1B1/1q2R3 w - - 0 1 illegal: No proof kernel
R3R2B/5q1n/qP1r1P1b/1KRqqBk1/4b2b/NN1nP2R/1Q2q2N/3B1r2 w - - 0 1 illegal: No proof kernel
4n3/2kr4/1Nr3rn/N1b3B1/RPR2q2/1BPBn1Q1/2RP1BbN/bb1qK3 w - - 0 1 illegal: No proof kernel
qk1B1n1b/1b4K1/3rqr2/1B4P1/1P1BP3/n1r1B1R1/bq1q1NN1/RQ2N1R1 w - - 0 1 illegal: No possible last move
2nn3b/5qPk/1NKRr1bN/BP2B2Q/6N1/6qP/B2R1bnR/rbRq4 w - - 0 1 illegal: No proof kernel
b1r2b2/q2NP1k1/3R1n2/1n4Kr/3R3N/BBP1NR1r/1q2bR1P/nQ3nB1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kg3 f5 Kf4 Kf7 e4 d5 b4 a4 e6+ Kf6 b6 g6 b7 a3 e5+ Kg7 c3 d3 b5 a2 e7 d4 e8R d2 e6 d3 h6+ Kh7 e7 Na6 b8B Nf6 b6 Nc7 b7 Nb5 Nf3 Qb6 Kg5 f4 Nh4 f3 Rd8 f2 Na3 Qa7 Rb1 a1N Rb4 Qb6 Qe1 d1R Nc4 d2 Ne3 Bg4 Be2 f1N Bc4 Be2 Ba7 Rc8 b8N Bf3 Rd7 Ba8 Ba3 Rb1 Ra4 d1B Rd6 Be2 Nd7 Rd1 Bf7 Rd3 Rad4 Qb8 Bb3 Qb6 Nd5 Rh3 Qb1 Kg8 h7+ Kg7 Ne3 Qb8 Kf4 g5+ Kf5 g4 Kg5 g3 B7c5 Rg8 h8R g2 Rh5 Rh8 Ba7 Ng3 Rf1 g1Q Rf2 Qc1 Rh6 Qb2 Bb6 Nf1 Bbc5 Nh5 Rhf6 Qa7 R6f3 Nf6 Rd3 Nd5 Rg2 Qc7 Nd1 Rg8 Bg1 Nf6 Rgf2 Rh8 R3d4 Qa7 Ne3 Rh5+
5rq1/1Pn1qRNR/N2P2B1/1brNR3/2q1Qq2/K2b2PN/1n3B2/3nbkB1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 b4 Kf6 d4 e5 Kd2 a5 Kc2 h5 Kb3 c5 d6 c4+ Ka4 c3 d7 e4 b6 h3 b7 h2 g3 e3 b5 c2 d5 e2 b6 e1Q Ra2 h4 Ra3 h3 Be3 c1Q Qd2 Nh6 Bc5 Qee7 Bf2 Na6 b8B Qc4+ Qb4 Ng4 b7 Rh5 Bd3 Ne3 Ra1 Nc7 Be4 Nd1 Ka3 a4 Bba7 Nb2 Nc3 Bg7 d6 Qdg8 d8R Bd7 Re1 Bb5 Rd7 Rf8 Bd3 Bh8 Re5 Bg7 Nf3 Bh6 Ng5 Bg7 Rf1 h1N Bad4 h2 Nh3 Rg5 Bg1 Nf2 Nd5+ Kf7 f6 h1B f5 Be4 Bc5 Nfd1 Bcf2 Bh6 Bb1 Bd3 Qe1 Rh5 Qe4 Bd2 Bc2 Be1 Bb1 Qg4 Bc2 Qf4 Bb1 Kg8 f7+ Kg7 f6+ Kh6 Bc2 Rf5 Bb1 Kh5 Bc2 Rb8 f8N Kg4 Ne6 Rf8 f7 Rh5 Ng7 Rg5 Qf5+ Kf3 Bb1 Kg2 Qe6 Rb8 f8N Rh5 Qg4 Rg5 Nfe6 Rf8 Nc5 Rh5 Nb6 Qg8 Na6 Qfc4 Re4 Rc5 Re5 Qf4 Qf5 Qfc4 Nd5 Qf4 Ka2 a3 Kb3 a2 Ka3 Qf3 Qe4 a1Q+ Ba2 Qc1 Bb1 Qf6 Rde7 Qc4 Rf7 Qe7 Bc2 Bc3 Re1 Bd2 Rh5 Ba5 Rh7 Bc3 Re3 Kf1 Qf4 Be1 Re5 Be2+ Bd3 Qg4 Bg6 Bd3 Qe4 Qf4
b2q1R1b/NP1k1n2/N1RP1n2/2K1Bq2/RQr5/1N2N1P1/BnB2q1r/3r1r2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 e4 c5 d4 f5 b4 a5 b6 h4 b5 f3 Ke3 h3 g3 f2 d6 c4 d7+ Ke7 d5 c3 Kd4 h2 d6+ Ke6 e5 c2 g6 a4 g7 f4 b7 a3 b6 f3 Qd2 a2 Ne2 Be7 Nec3 Ra3 Kc5 Rb3 Bb2 c1N Nd1 Nf6 Qb4 Nc6 b8N Bb7 Na6 Ba8 Bd3 f1Q b7 f2 Bc2 Bf8 g8R Bg7 Ne3 Qg1 Nd2 f1Q Bd4 Qf5 Rf8 Qgf2 Rg1 Rd3 Nb3 h1R Rd1 R8h2 Rd2 Qe7 d8N+ Kd7 Re2 Rf1 Bb2 Nb8 Nc6 Qd8 Na7 Rd4 Rd2 Rg4 Rd3 Bh8 Rc3 Nc6 Rc4 Ne2 Rc1 a1R Bd4 Ra2 Ra1 Rb2 Ra4 Rbb1 Bb2 Nf4 Bd4 Qg6 Bc3 Rbd1 Bb2 Qde8 e6+ Kd8 e7+ Kd7 Be5 Nd8 Kb6 Nd3 Rc6 Nb2 Kc5 Nf7 Bb1 Nh6 Ba2 Qd8 e8B+ Ke6 Bf7+ Kd7 Bd5 Qgf5 Be4 Nf7 Bc2 Rc4+
1q2RRB1/1Pkr1n2/3bb2r/2n2RKn/1rPN1P1N/1QB5/r2B4/Nr3rR1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 f4 Kd7 c4 a5 h4 g5 b4 e5 f6 d3 Ke3 d2 h6 e4 h5 g4 h7 g3 f7 g2 h6 a4 b6 a3 b7 a2 b5 Nf6 b6 Bd6 f8R Na6 b8R Nc5 b7 Kc7 Rh5 Ra4 Nf3 g1N Bg2 Nh3 Na3 Be6 Qb3 d1R Rf5 Nh5 Nd4 Rf1 Bd2 Rb4 Nac2 Ng5 Rc1 Qc8 Na1 Nf7 Ra8 Qb8 Re1 Rg8 h8B Rg6 h7 Rh6 Ke2 e3 Bf6 Rg1 Kf3 e2 Kg4 Rf1 Rd1 e1R h8N Re2 Ng6 Ref2 Nh4 Re2 Ndc2 d4 Bd5 d3 Bfc3 Rh2 Nd4 Rhf2 Nac2 a1R Rc1 Ra2 Na1 Rh1 Rg1 Rf1 Bc1 d2 Re8 d1R B1d2 Ne5+ Kg5 Rb1 Rff8 Rh7 Ra5 Rd7 Rb5 Bf5 Bg8 Be6 Ng2 Ng3 Ra5 Rh6 Nh4 Nh5 Rb5 Nc6 Ra5 Nd8 Rb5 Na4 Re5 Nc5 Ref5 Nf7+
4Nk2/2P2N2/QrbrrKP1/3rN1Pq/r1NB4/1R1Rb3/b1b1R2B/2nBn3 w - - 0 1 illegal: No possible last move, all moves rejected
qr3nb1/8/2RK1b1R/3Bnqr1/1NNPPbBR/B4b2/2RQP1q1/1k1N3q w - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 e5 f3 e4 fxe4 Be6 Ra4 Bd7 Ra1 Bc8 Kf2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 f5 g4 a5 b3 h5 d6 c5 b6 h3 d7 h4 g5 a4 b7 a3 g6 h2 g7 c4 Qc2 h3 Bf4 c3 Ke6 a2 Kd5 Nf6+ Ke6 Nh7 g8B Be7 Nd2 Ka3 b4 Qf8 b5 Bf6 b6 Ra5 Rc1 Nc6 b8R a1Q b7 Ne5 Bg2 Qf7+ Kd6 Nf8 d8R Be6 Bf3 Bb3 Bg5 f4 Bg4 f3 Rdc8 f2 Rc6 f1Q Qd1 Kb2 Nc4+ Ka2 Qd2+ c2 Be3 Qh7 Bd5 Qg2 Ra8 Rg8 b8N Qf5 Raa6 Rg5 Rab6 Ra8 Na6 Rb8 Bf4 Qb1 Nb4+ Ka1 Rf1 c1B Rf3 Qb2 Rc3 Qa2 Rc2 Qa8 Ra6+ Kb1 Rab6 Rg7 Bh6 Rg5 Bg7 Ne6 Bf8 Ba2 Nb2 Bb3 Nd1 Ba2 Be7 Nf8 Nf3 Bc4 Qd3 Bf4 Qd2 Neg6+ Ne5 Bb3 Rf1 h1Q Rf3 h2 Rh3 Bc4 Rh4 Ba2 Kc5 Bb3 Nc4 Ne5 Kd6 Ba4 Rc5 Bd7 Ra6 Be6 Rcc6 Bg8 Ra3 Qhg1 Rah3 h1B Rh2 Qg3 Rh6 Bf3 R2h4 Q3g2 Kc7 Qa1 Na6 Qa4 Ba3 Q1f1 Nb4 Qfh1 Kd6 Qa8
q4b2/B4r2/2nN1rP1/3KB1RB/1N1P2R1/N2qk1rQ/PRq3R1/1q3brn w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 f4 b5 g4 h5 d3 e5 g6 b3 g7 b2 f6 h4 f5 b4 g5 h3 d6 b3 f7 h2 d7 Ra3 f6 Nc6 Bf4 Nh6 g8R Rh7 Be2 Nf5 Qf1 Ba6 Bh5 Qa8 d8N Rh6 Nh3 Ng3+ Kf3 Kd4 Nb7 Bc4 Rg1 h1R Rg2 Rg1 Nd6 Nh1 Nf2 Bb5 Bh2 e4+ Kf4 Ra7 Na3 e3 Rb1 e2 Rg4 e1Q Qh3 Rg3 Kf5+ Ke3 Ke6 Ba6 d4 Qe2 Kd5 Qc2 Nd3 Bb5 Rg1 b1Q Nb4 b2 Rg2 Bf1 Rg6 Qbd1 Rg7 b1Q Rg6 Be7 f8R Qdd3 Rb8 Bf8 f7 Rb7 Rg7 Rf6 Rg8 Na7 Rg6 c5 Rg8 c4 Rg6 Rgf3 Be5 c3 Rg7 Nc6 Rg6 Bh6 f8B Rbf7 Be7 Bg7 Bd8 Bf8 Bb6 Rg3 Ba7 Qf2 Rb5 c2 Rg8 c1R g6 Be7 Rgb8 Bf8 Rc5 Qfb2 Rbb5 Re1 Rcc2 Qbc3 Rb2 Qcc2 Bf4+ Kf3 Ra5 Be2 Rc5 Rf5+ Ke6 Rg1 Re5 Bf1 Kd5 R5f6 Reg5 Qcc1 Be5 Ke3 Rf5 Qcd2 Rfg5 Q2c2
2N1b1NK/nk2n2P/3BPB2/1NRr3r/B1br2qR/1q6/RbQR2P1/3r2b1 w - - 0 1 illegal: No proof kernel
1R2brrq/R3Pb2/RQ1bnB2/2PN2N1/1q1qB2k/2B5/2nNB1P1/1q3K1b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 e4 Ke7 b4 h5 c4 d5 g6 a5 g7 f5 b6 d3 b7 d2+ Ke2 d4 b5 d3+ Kf2 f4 b6 f3 c5 h4 e6 Kf6 e5+ Kg5 e7 h3 e8B h2 e6 a4 Bb2 a3 Bd7 a2 Be8 Ne7 g8R+ Ng6 Bd7 Nc6 b8B Bd6 e7 Kh4 b7 Qb6 Bf5 Nf8 Be4 Be6 Qe1 d1Q Bc3 d2 Be2 Bf7 Kf1+ f2 Nh3 Nb4 Ng5 Nc2 Bc7 Ne6 b8N Qa5 Nd7 Qb4 Rb8 Rg8 Nf6 Rf8 Rg1 h1B Nd5 Qc1 Ba5 d1Q Bf6 Qdd4 Nd2 Qcb1 Qc1 Qb5 Bc3 Q5b4 Rb7 Rg8 Ra7 Raf8 Qd1 Q1b3 Rb1 a1Q Rb2 Qb1 Rba2 Q3c4 R2a6 Qcd3 Qe1 Qf3 Qc1 Qh5 Qe1 Qh8 Qd1 Ne1 Qb3 Nc2+ Bd1 Qa4 Ke2 Qba1 Re1 Q1a2 Kf1 Qa5 Bdf3 Q5a3 Ra1 Qa5 Rb6 Qb1+ Bd1 Qaa4 Rb8 Be8 Qb6 Qab4 R1a6 Bf7 Ke2 f1B+ Kf3 Bb5 Be2 Qe5 Kf2 Bc6 Bh7 Bce8 Be4 Q1b3 Kg1 Qed4+ Kf1 Qb1+
2BbR1Bq/rP6/NN4r1/1Pq1P2k/1Kb3n1/B4R2/2N1b1Q1/bnRN1nn1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 Kd2 Kg6 Kc3 c5 b4 h5 g4 a5 d6 a4 d5 h4 b6 c4 e5 a3 b5 a2 d7 h3 b7 h2 d6 f3 Qe2 f2 Bh3 f1N Na3 f4 Nc2 f3 Kb4 c3 Ba3 f2 Rc1 a1B Qd2 Rh4 Ne2 Be7 Rg1 h1N Rg3 Rh6 Rf3 Nf6 Qd5 Qg8 d8R Ne4 Re8 Bd8 d7 Qh8 Qa2 Ned2 Qb2 Bc7 d8N Ra7 Ne6 Nd7 Nc5 Nhg3 Na6 Bd8 Qa2 Nf6 Qb2 Kg7 g6 Nb1 g5 Be6 Qa2 Bc4 Bc8 Ngh5 Qb2 Nf4 Qa2 Nh3 Qb2 Ng1 Qa2 Qg8 Qb2 Kh8 g7+ Kh7 Qa2 Qh8 g8B+ Kg7 g6 Ng4 Qb2 Rh2 Qa2 Kh6 g7 Kg6 Ncd4 c2 Nc3 Be2 Nd1 Rg2 Qd5 Kh5 Qe4 Bc4 Qe2 Nfd2 Qf1 Rg3 Qg2 f1B Bge6 Bfe2 g8N Nf2 Ne7 Bb3 Nd5 Rg6 Nb6 Nf1 Bd5 Ng4 Bg8 Nbd2 Rb1 c1Q Ne6 Qc2 Rc1 Nb1 Nd4 Qc7 Nc2 Bbc4 Bd5 Qc6 Bg8 Qc5+
2q2q2/b5B1/qR5N/6pr/KN1n2RP/RNPB2rB/3bb1P1/3BknQr w - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 Qd3 e5 fxe5 Qb6 Qh3 Qc7 Qxh5 Qb6 Qh7 Qd8 Kd2 Ke7 b4 Ke6 h4 Kd5 e3 a5 e6 f5 b6 Ke4 e7 g5 e8B d5 b5 a4 b7 a3 b6 d3 Kc3 d2 Kb3 d1Q Bc4 d4 Bd7 d3 Nf3 a2 Re1 d2 Ne5 Bb4 Ng4 Qf3 Bb2 d1R Nh6 Bd2 Bg7 Nc6 b8N Ba6 b7 Nge7 Ka4 Nd4 Nc6 Qc8 b8R Nd5 Nb4 Qf4 Re2 Rh1 Rb6 Qd6 Rf2 Qdf8 Be2 Rb8 Bd1 Be2 Rf3 Rb7 Rg3 Rc7 Qg6 Rc3 Qf6 f4 Bh3 f3 Rg4+ Nf4 Qf7 f2 Qa7 f1Q Nd3 Kd5 e4+ Kc4 e5 Nh5 e6 Ng3 e7 Q1f6 e8B Nf1 Nb4 Rg3 Bg6 Rh7 Na3+ Kc3 Nc4 Q6d6 Bd3 Rh8 Nf7 Rh5 Nh6 Qde6 Na5 Qec4 Rc1 a1B Nb3 Bb2 Ra1 Q4a6+ Na5 Bbc1 Ra2 Be3 Ra3+ Kd2 c3 Ke1 Nd5 Bcd2 Nb4 Qab7 Nb3 Bf4 Qa5 Bb8 Qf5 Ba7 Qc5 Nc2 Qe3 Nd4 Qg1 Qa6+
3b1r2/B3rQ2/n1P4q/2b1P2p/qBbNB2K/RNr1Nn2/N1nRR2P/6k1 w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 f4 Ke7 Kf2 Ke6 Kg3 Kf5 c4 Ke4 f5 d5 c6 h5 e6 g5 c5 a5 f6 d4 c7 d3 c6 d2 b6 Ke3 e7 a4 e8N a3 b7 a2 f7 Be7 f8B Be6 c8R Nf6 Qa4 Na6 b8N Ra7 Nf3 Nd7 Qc4 Ne5 Nc3 Qd6 Nf6 Bd8 Nd4 Re7 Bg2 Bd5 Qb3 Bc4 Nbd7 Qe6 Ba3 d1Q Re1 Nf3 Bc5 Qc2 Qb7 Qa4 Ba7 Rg8 Rad1 a1N Nc5 Nc2 Ra8 Rh8 Na2 Rg8 Nfe4 Qh6 Ncb3 Rh8 Bh1 Rg8 Nf2 Rh8 Kg2 g3 Kh3 g2 Rd2 g1B Kg3 g4 Nd1+ Ke4 Ne3 Rg8 Kg2 g3 Kh3 g2 Qd7 Rh8 Qe8 Bf2 Qf7 g1R Bg2 Re8 Bb4 Re7 Nef5 Kf4 e4 Rf8 Ree2 Rc1 e5 Be3 Nb5 Bc5 Nb5d4 Na1 Bh1 Rc3 Ne3+ Ke4 Rb8 Nc2 Rb5 Rfe8 Ra5 Rf8 Kg3 Qb5 Ra3 Qa4 Bg2 Nb8 Nf1+ Qe3 Nf5 Na6 Bh3 Ng1+ Kh4 Kf3 Nfd4+ Ke4 Rg2 Qh6 Bf5+ Kf4 Ne6+ Kf3 Ne3 Nh3 Rge2 Ng5 Re1 Be2 Ned4+ Kf2 Nf1 Kg1 Be4 Bd3 Ree2 Bc4 Ne3 Nf3+
1r1qq3/3R2bP/1B1N2pk/Q1BrP1n1/1RK1RNP1/2qB3n/2b1n2b/N1B5 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 g4 c5 h4 a5 b4 f5 e4 Kf7 Ke2 c4 d4 c3 Kd3 c2 b6 a4 d6 a3 b7 f3 h5 f4 e5 a2 d7 f2 b5 f3 d5 Ra4 b6 Ra5 d6 Rd5+ Kc4 Nf6 h6 Nh5 Na3 Nc6 b8R Nd4 b7 Nf4 Nh3 Nde6 Bd3 Ng5 Re1 f1Q Re4 f2 Rb1 a1B Rb4 Qe1 Ra8 f1Q b8B Bb7 Ba7 Bd4 Bc5 Bg1 Ra7 Bh2 Qg8+ Kg6 h7 Qe8 d8B Kh6 d7 g6 Bdb6 Bg7 d8N Qh4 Qf7 Qf3 Qc7 Bc8 Nb7 Bf5 Nd6 Qe3 Bd2 c1N Nc2 Nce2 Bc1 Qd2 Na1 Qb2 Nf2 Nfh3 Qd8 Qa3 Rc7 Qa5 Rd7 Qg3 Qc7 Qaa8 Qa7 Qad8 Qa5 Rf8 Bb1 Qe3 Nd3 Rh8 Nf4 Qa3 Rd4 Bc2 Re4 Qc3+ Kb5 Bd3+ Nc4 Qf8 Bc2 Qc7 Bb1 Qe7 Bc2 Rb8 Bb1 Qc8 Bc2 Qcd8 Bb1 Bc2 Nd6 Bd1 Bc2 Qee8 Bd3 Qa3 Kc4 Bc2 Rb3 Qb2 Rb4 Qc3+
5Bnq/N2B2pr/4Q3/kP1PRb1B/2bqP1R1/4rrN1/1bBn4/K1N2q1R w - - 0 1 illegal: No possible last move, all moves rejected
R7/KN2P3/1Q2q1P1/2BbbknB/1rP2r2/bN3n2/Rp2R2q/rN1q2BB w - - 0 1 illegal: No proof kernel
K3B2k/1N2p3/1R2r3/P5nn/qB1PP3/rNb4N/b1B1qb1q/2NrRQR1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 g5 fxg5 Na6 gxh5 Nb8 b4 axb4 Kf2 f5 Ke3 Kf7 Kd4 Kg7 Kc5 b5 d4 c6 e4 b3 h4 f4 a4 b4 g6 b2 d6 b3 d7 f3 Nh3 f2 Bb5 f1Q Nd2 b1Q Rg1 b2 Nb3 Nh6 Bd2 Qa5 d8N Qe2 Bb4 Be6 Nb7 Qa2 Qf1 Nf7 Re1 b1R h6+ Kg8 g7 Ng5 h5 Rd1 Nd8 Qc7 Nb7 Qch2 Kb6 c5 Be8 c4 a5 Nd7+ Kc6 Nf6 Kb6 Rc8 Ka7 Rc6 Ka8 c3 Nc1 c2 Nc5 Qhf2 N5b3 Rc3 Ba4 Qh2 h7+ Kf7 g8B+ Kg7 Bd7 Qa4 Be8 Rc6 Bgf7 Bc4 Bg8 Re6 Bgf7 Rg8 h8N Kh7 h6 Nh5 Bc6 Bg7+ Bfe8 Be5 Nf7 Bg3 Nd6 Kh8 h7 Bf2 Nb7 Rf8 Bb5 Rf3 Ba6 Bd5 Bd3 Bc4 Na2 c1B Bc2 Bd2 Nac1 Kg7 h8R Bc3 Rh6 Bd5 Na1 Ba2 Rf6 Kh8 Nab3 Re5 Ra6 Re6 Rb6 Bd2 N3c5 Ra3 N5b3 Bc3
qRQNn3/1NPRqN1k/2r3N1/8/1B1Bbbbp/r4R1P/K2PB1rq/n7 w - - 0 1 illegal: No possible last move, all moves rejected
2QNq1b1/2PN1Rq1/2RP3k/3Rn2B/3q1rnb/1N2RPp1/3BB3/3nrK1b w - - 0 1 illegal: No possible last move, all moves rejected
6rr/BNnNb1b1/B1bB2R1/1R1pRQ2/q6P/4BnK1/1PN1Pb1r/3b2k1 w - - 0 1 illegal: No possible last move, all moves rejected
b1b1BK1b/3PPp1q/N3nN2/B4R2/kB1nQ1Nr/nb4b1/r2RP1RR/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Kd7 Ke3 h5 Ke4 c5 Kf5 a5 g4 c4 b4 h3 d4 a4 g5 h4 b6 a3 b5 a2 d6 h2 b7 c3 g6 h3 d5 c2 b6 Rh7 g7 Ra4 e6+ Ke8 d7+ Ke7 Ba3+ Rb4 Nc3 Kd6 e7 Kc5 d6 c1N Nf3 Nb3 Nd5 Kb5 Bg2 Nf6 g8R Ng4 Qd4 Ne3+ Kf6 Na6 b8B Ra4 b7 Nc4 Qe4 Bh6 Ne5 Nac5 Ng4 Nd4 Bb4 Na3 Bc7 Bf4 b8N Nce6 Bca5 Bg3 Na6 Rh4 Raf1 a1B Rf5 Bc3 Rg6 Qg8 d8R Qh7 Rgg8 Nb1 Bf3 Ra2 Rgg5 Na3 Bg2 Nc7 Bf3 Ka4 Rd7 Qh5 Kg7 Qh7+ Kf8 Ba1 Ndf6 Bb2 Rf1 h1B Rf2 h2 Rh5 Bc3 Rg2 Nce6+ Ke8 Qh6 Qd3 Ndb5 Nh7 Bge5 Rg3 Rh3 Bc6 Bd5 Rg2 Bg3 Qe4 Bh8 Nhf6 Qh7 Rd8 Bb3 Rh6 Ng7+ Kf8 Rh5 Be8 Rh3 Rd7 Rh5 Rc7 Rh3 d7 Nd4 Rc2 Rh5 Qe3 Rh3 Rd2 h1B Rg1 Ba8 Qe4 Rh1 Rg2 Rh3 Rhh5 Rh1 Rf1 Rh3 Rh1 Rh2 Rf5 Rh4 Rhh2 Nge6+
nR2r1r1/P3r2R/2k1p1B1/1NPn2Bb/1q1r1N2/R2bP3/1R1QBKNr/4n3 w - - 0 1 legal: proof: d4 c5 dxc5 a5 g4 g5 b4 axb4 h4 e6 hxg5 Bd6 f4 Nc6 f5 Ne5 g6 Be7 g5 Bf8 f6 Bg7 fxg7 Nc6 Bb2 Nb8 Ba3 Nf6 Bc1 Ng8 c4 h5 a4 f5 e3 b5 a5 d5 c6 f4 c7 Kd7 a6 f3 a7 b3 c5 d4 Bb2 f2+ Ke2 d3+ Kf3 b4 Bh3 f1R+ Kg3 d2 Ba3 h4+ Kg2 b2 Nc3 b1N Bg4 b3 Bb2 Nf6 g8B Na6 g7 Nd5 g6 Rf7 Nf3 h3+ Kf2 h2 Ne2 Bb7 c8N Re7 Bf6 b2 Nd6 Kc6 Ra3 Qa5 Nh4 Rae8 Nb5 Qb4 Bf7 Rhg8 Nf4 Nac7 Nhg2 Na8 Bg5 Ba6 Qe2 d1R Qd2 Bb7 Be2 Ba6 Rg1 h1R Re1 Rh2 Rh1 Rgf8 g8R Bb7 Rc3 Na3 g7 b1B Bg6 Nc2 Ra3 Ne1 Rh8 Bc2 g8R Bd3 Rg7 Rg8 Rgh7 Rc1 Rf1 Rc4 Rg1 Rd4 Rf1 Nc2 Rb1 Ne1 Rb2 Ba6 Rf7 Bf5 Rf8 Bg4 Rh7 Bh5 Nc3 Bd3 Nb5 Rc8 Rd8 Rcc7 Rc8 Ree8 Rb8 Rce7
3rn1qR/1N3b2/4pBP1/r2BR3/P2RbBkn/2r1Q1N1/3RNbPr/2n4K w - - 0 1 illegal: No possible last move, all moves rejected
N7/3PB3/Q5R1/1K1nb2P/B2Br1b1/RrP1NbrB/3rR1Np/1kn3qn w - - 0 1 illegal: No proof kernel
Bn1N2NQ/1R1N1Rnq/3brq2/B2B4/1N1P1R2/1P3prk/1P1qb3/K1qq4 w - - 0 1 illegal: No possible last move, all moves rejected
5B1n/bNbQb1BB/R5P1/1n5N/q1RRPb2/1b2p1K1/2r1PrR1/q1k3N1 w - - 0 1 illegal: No possible last move, all moves rejected
RrnrB2r/5b2/3qk1PN/BR1r1NPq/BQ2Np1b/1P6/r2n1RNK/8 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 d4 c5 g4 f5 Kg2 a5 e4 h5 b6 a4 g6 h4 d6 a3 g5 h3+ Kh2 f3 b3 f2 d5 f4 e5 a2 b7 c4 e6+ Ke8 d7+ Ke7 Bd2 c3 Qe1 c2 Nc3 c1R Nf3 Rd1 Ne4 Nc6 b8R Na7 Bb5 f1R Nh4 Nf6 Ng2 Qc7 d8N Qd6 Rb6 Rb8 Ba4 Ba6 Rg1 Bc4 Nf7 Nc8 Nh6 Rf2 Ba5 Rfd2 Rf1 Bg7 Nc3 Ne4 Rf2 Bd4 Rb5 Rd3 Qd2 Bb6 Qe1 Nd2 Ne4 Bd4 Re2 Bf2 Nf5+ Ke8 e7 Bh4 Rf2 Kd7 Qe3 Rd4 Qc3 Rd3 Qb4 Rd4 Rb1 a1R Rc1 Ra2 Ra1 Qc5 d6 Ke6 e8B Rd5 d7 Qc6 Ne1 Qd6 d8N+ Ke5 Nf7+ Ke6 Kh1 h2 N7h6 Ne7 Kg2 Nc8 Kh3 h1Q+ Rh2 Qg1 Rf2 Qg4+ Kh2 Qh5 Ng2 Qc7 Qa3 Rd8 Qb4 Qd6 Bc7 Nb1 Bb6 Rd5 Ba5 Nd2 Bc7 Ra3 Ra5 Re5 Bab5 Kd5 Ra8 Ra7 Rc1 Ra2 Ba4 Qf8 Ba5 Qd6 Nfg3 Rf5 Rc2 Ke5 Rc3 Bg8 Rc5+ Ke6 Rb5 Rd5 Ngf5 Bf7
bR2r3/5p2/R2bNk1N/r1nq1n2/1B6/PPK1PBnq/Bn3N1n/NQ3R2 w - - 0 1 illegal: No proof kernel
b4q1N/k2pPrq1/2n1P1K1/4NBR1/1R1NRbQ1/n2n4/1Bn1PRB1/2n3r1 w - - 0 1 illegal: No possible last move, all moves rejected
2k1n1r1/n1Nq1R1b/2N3Bq/PBq3N1/2Rr2Pb/B1Pq1Rp1/2R4n/1K3Q2 w - - 0 1 illegal: No proof kernel
2Rb4/5qBn/1NK5/PP1B1p2/QBNNr2B/P1Rb3b/2bn3R/1k2rq1r w - - 0 1 illegal: No proof kernel
QRR3b1/5B2/B1qnP1n1/2q3N1/2rp1q1b/3b1BBP/3rP1N1/RNKb3k w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 Ke7 a4 Ke6 c4 Kf5 h3 Kf4 c6 Kg3 c5 f5 h6 b5 a5 d5 a6 g5 c7 b3 a7 f4 c6 g4 h7 f3 Rh2 b4 Bb2 f2 Ra4 Qd7 Ba1 b2 Ra5 b3 Qc1 Nf6 Qc2 Be7 Qg6 Ne8 Qg5 Nd6 Ra6 Rd8 Bg2 f1Q Qg8 Bh4 h8N Qf4+ Kd1 Qe8 Nf7 Be6 c8B Nd7 c7 Nf8 Bf3 Ng6 Rf2 Qc6 Ng5 Rb8 a8B Rb4 Bcb7 Rc4 c8R Bf7 Rf1 Kh2 Rb6 g3 Ba6 g2 Rbb8 Kh1 e6 Rd7 Bh5 Rd8 N1f3+ g1Q Qe8 Bg8 Ne1 Rd7 Ng2 Rd8 Nd2 b1B Be5 Bd3 Nb1 b2 B8b7 Qf7 Bg3 Qf4 Nd2 b1B Re1 Ne5 Bf7 Bbc2+ Kc1 Ng6 Ba8 Rd7 Qf8 Rb7 Qe8 Rb2 B8b7 d4 Rd1 Qc5 Bf3 Qf1 Qc6 Qe4 Qa8 Qec6 Nb1 Bb3+ Nc3 Rd2 Re1 Bbc2 Nb1 Bd1+ Nc3 Qe8 Bc6 B1c2 Kb2 Qe5 Ra1 Bd1+ Kc1 Qff4 Bd5 Qc6 Bf3 B1c2 Nb1 Qa5 Rc7 Qac5 Rcc8 Bd1+
1B4q1/Bkn1bK2/2N1p1BR/P1nN1QR1/1b2qP2/Nb5r/1rb3Pq/1R5R w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 b5 a4 h5 f4 b3 d4 b2 g6 h4 f6 c4 g7 c3 d6+ Kb7 a5 e6 d7 c2 f7 b4 d5 h3 d6 b3 Bd3 h2 Qg4 Rh3 Na3 b1B Ne2 b2 Be3 c1B Bg6 Nf6 g8R Ne8 Qf5 Na6 Nc3 Nc5 Nd5 Be7 f8B Bc2 Rb1 Nc7 Bg1 Qe8 d8R Bd2 d7 Rb8 Rh8 Bb4 Rh6 Qf7 Re8 Qg8 d8N+ Ka7 Nc6+ Kb7 Rd8 Bd7 Bf2 Bg5 Bd6 Be7 Rf8 Bb3 Rf7 Be8 Rg7 Bd7 Na7 Bda4 Nc6 Bc2 Bg1 Bab3 Bf2 N5a6 Ba7 Nc5 Rhc1 h1Q Rg1 Bf8 Kf6 Qh2 Be5 Bd6 Rh1 Bf8 Be8 Bd6 Rg5 Bf8 Bg6 Bd6 Rbg1 b1Q Rf1 Qe1 Rfg1 Qe4 Rb1 Qd8+ Kg7 Be7 Kf7 Bc3 Rbf1 Kc8 Rgh5 Ne8 Rh8 Ba2 R8h7 Rb2 Rg5 Kb7 Rh4 Bb4 Beb8 Nc7 Rh6 Bab3 Rb1 Qg8+
r3nN2/2r1R3/R2Pbq1r/1B6/r2P2R1/2N1Pnpk/qB2BqN1/1K2bNQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 d4 Kd7 Kd2 c5 Kc2 a5 h4 g5 b4 f5 b6 a4 h5 a3 b5 a2 e3 g3 b7 g4 h6 f4 h7 f3 b6 f2 Nf3 c4 Ba3 c3 Nh2 g2 Rg1 Qf6 Bb2 Nc6 b8R Bb4 d6 Ke6 b7 Kf5 e6 Ne5 e7 Nf3 e8B Be6 Be2 f1Q B8b5 Qf2 Re8 Ba5 Kc1 c2 b8N Be1 Re7 Kg5 Nd7 Kh4 Nc3 Kh3 Nf8 g3 Rh1 g1Q Nf1+ Kg4 Rh5 Qgh2 Rg5+ Kh3 Rg4 Ra4 Ng6 Ra8 Nh4 Ra4 Rb1 a1R Ng2 R1a3 Ra1 Ra8 Ra2 R3a4 Ra1 Qg6 Ra2 Nf6 Ra1 Ne8 Ra3 Rf8 h8N Qf6 Ng6 Rh8 Nf8 Rh6 Ra1 Rb4 Ra6 Ra4 Ba3 Bd7 Kb2 c1R Ka2 Rc2+ Kb1 Be6 Bb2 Bd2 Na2 Rc7 Qe1 Bb4 Nc3 Ba5 Nd2 Bb4 Qg1 Ba5 Nf1 Bb4 Nd5 Be1 Nc3 Rc5 Nh4 Qg5 Bc1 Qfg2 Bd1 Rc7 Ba3 Qd2 Bde2 Qf2 Ng2 Qf6 Bb2 Qd3+ Kc1 Qc4 Kb1 Qa2+
B1kN3b/4RQ2/3P2r1/2KRBr1P/2b2q1P/Np6/1nqBqNb1/nB1b1R2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 c5 a4 f5 h4 b5 d4 g5 a5 c4 a6 f4+ Ke4 g4 a7 b3 d6 f3 Kd5 f2 e4 b4 Bg5 c3 Ra4 b2 Ra2 b3 Rh3 g3 Qd2 c2 Bd3 c1Q Na3 f1B Rh1 b1B Qf2 g2 Qf7+ Qe7 Rd2 Nc6 Nh3 g1Q Nf2 Ba6 e6+ Kc8 e5 Bc2 Kc5 Bg2 d5 Qgd1 Rf1 Rh6 Be3 Qf6 e7 Nb4 e8N Qe2 e6 Bg7 e7 Bc4 Nc7 Bh8 Ne6 Rg6 Nd8 Bd1 e8R Nc2 Re7 Na1 Bb1 Nh6 Rd4 Qe5 Bd2 Qf4 Rd3 Rb8 a8B Nf5 Rd4 Qc2 d7+ Kc7 Rd3 Ne3 Rd4 Rbb6 d6+ Kb8 Rd5 Rb7 Ne6 Rb4 d8B Kc8 Ba5 Ra4 Bac3 Ra5+ Kb6 Rc5 Nd8 Ra5 Rd3 Rf5 Rd5 Ng4 Bg7 Ne5 Bf6 Nd3 Be5 Nb2 Kc6 Qeg4 Kc5 Qe2
qNn1R1RK/6B1/PP3R1r/3kN2n/b1p2b1R/r1q3N1/rP2Bb2/2B2rQ1 w - - 0 1 illegal: No proof kernel
r4n1B/q3RbbP/2n1b1q1/1q2N1RR/Q1B2K1r/1P3P1N/p5B1/N3k1Nb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 h4 Ke5 f6 Ke4 h6 g5 c5 e5 h7 d5 f7 a5 b3 g4 c6 g3 b6 g2 b7 a4 h5 a3 h6 d3 c7 d4 Qh5 a2 Qg5 Qe7 Qg3 Bg7 f8R Nf6 Na3 Nfd7 Rh5 Nc6 b8N Bb7 Rff5 Nf8 c8B Qf6 Rfg5 Qg6 Qh3 Kf4 Nd7 e4 Bb2 e3+ Kd1 d2 Ke2 Ke4 Nc2 Kf4 Ne5 d1B+ Ke1 e2 Kd2 d3 Be6 Ke4 Bc4 Kf4 Qd7 e1Q+ Kc1 Qee4 Kd2 Bg4 Re1 Qd5 Na1 Qb5 Bd4 Be6 Bc3 Bf7 Re3 Rg8 h8N Ra4 h7 Ba8 Ke1 d2+ Ke2 d1B+ Kd2 Rb4 Qa7 Bg4 Qa4 Bfe6 Nhf7 Bb7 Ngf3 g1Q Bg2 Rh8 Nd6 Bf7 Ne4 Qc5 Ke2 Qf1+ Kd2 Qa7 Ng1 Ba8 Rd3 Rg8 Rd7 Rh8 Re7 Bb7 Bd5 Qb5 Bc4 Bgc8 Nef3 Be5 Re8 Nd8 Bd5 Nd7 Re7 Re8 Be6 Nf8 Bgh3 Bd5 Bf1 Nc6 Bd4 Bh8 Bg7 Bd7 Ne5 Ra8 Bf6 Bg7 Beh3 Bh6 Bh8 Bg7 Bd3 Rd4 Ke2 Bf5 Bc4 Bc8 Rg2 Bf5 Ng5 Bf5e6 Rg3 Bh1 f3 Bf5 Bg2 B5e6 Ke1 Ke3 N5h3 Rh4 Rgg5 Bg4 Kf1 Kd4 Kf2 Kc3+ Kg3 Kd2 Kf4 Kd1 Bd3 Ke1 Bc4 Bge6+
bb1N4/N1R2nP1/1kr1r2R/1Pn2qR1/2r2P2/BB3pBR/NK1bq3/3Q1b2 w - - 0 1 illegal: No proof kernel
1b2q3/Nr3PB1/1b1BR3/QK1b1n1r/1P1P1Rbp/1B1R4/2R3q1/1qn1NNk1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 d4 h5 b4 a5 f4 c5 f6 e5 b6 h3 d6 h2 g5 a4 b7 h4 f5 a3 d7 a2 g6 Na6 b8R Ra7 g7 Qe8 d8R Nh6 g8N Rb7 Nd2+ Ke3 f7 Kf2 f6 e4 Rd6 e3 Ngf3 e2 Re6 e1Q Ne7 Qe4 Qa4 Nf5 Nc6 Rh5 Ne1 Qg2 Na7 Bd7 Rg1 h1B Qa5 Be7 f8B Bd8 f7 Bb6 Rb1 a1Q Rb3 Qb1 Bd6 Bc8 Rd3 Bd7 Kc3 c4 Rc8 Nc5 Be2 Nb3 Nf1 Qf8 Bd2 Qe8 Bh6 Nc1 Rc5 Bc8 Bd1 Bd7 Bb3 Bc8 Bg7 Bd7 Kd2 c3+ Kd1 c2+ Kd2 Qg6 Kc3 Bd5 Rh1 Qg2 Rhh3 Kg1 Rhf3 Bc8 Rf4 Ne3 Rh6 Bg4 Re6 Nf5 Rc6 Be4 Kc4 Bd5+ Kb5 Ne2 Ree4 c1B Re7 Bd2 Re6 Nc1 Rf2 Bf4 Rff3 Be5 Rf4 Qb8 Rc2 Qh8 Bdf8 Bb8 Bd6 Qe8+
B5NR/2N1P1B1/nPBr1P1r/2p2kb1/1r2R3/KqQ2q1N/Nr4R1/n2b3b w - - 0 1 illegal: No proof kernel
RqN1K1n1/2qP1PQr/1bn1N2R/P1BN1nqn/2B1r1Nk/B3p3/2b5/6R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 b5 h4+ Kf6 a4 e5+ d6 g5 d4 c6 f4 b3 d5 e4 a5 g4 h6 e3 h7 b4 h5 b2 h6 b3 Nf3 g3 Qd4+ Kf7 f6 Kg6 f7 g2 Bc4 g1N Nc3 b1Q Ba3 b2 Nh2 Kh5 f5 Qc7 f6 Nf3 Ng4+ Nh4 Rh2 Qg6 Rg1 Bg7 f8B b1Q f7 Bf5 d7 Bc2 d8N Qg5 Ne6 Bf6 Qe5 Bd8 d6 Qb3 d7 Qbb7 Re2 Nf5 Qg7 Kh4 Nd5 Ra6 Rf2 Rb6 Rff1 Rb4 Rb1 Ra4 Rb6 Qbc8 Be2 Re4 Bc4 Bf6 Ra6 Ba1 Ra8 Bd4+ Kb4 c5+ Kb5 Qe5 Kb6 Nc6 Bd6 Qf8 Kc7 Qg3 Ba6 c4 Bc5 c3 Bc4 Qe1 Ba3 Qb1 Bdc5 Qd6+ Kc8 Nce7+ Kd8 Nc6+ Ke8 Qc7 Bf8 Bb6 Bfc5 Qb4 Ndf6 Ba4 Rg2 c2 Rg1 c1N Be2 Bc2 Bc4 Ne2 Nd5 Nge7+ Qf8 Rg8 h8R Ba7 h7 Rg6 Qg7 Nf4 Rf8 Rh6 h8N Nh5 Ng6+ Kh3 Rh8 Ng8 Nge7 Kh4 Nc8 Qbb8 Rh7 Bb6 Qd4 Rg6 Rh6 Rg7 Qe5 Rh7 Qc3 Kh3 Qg7 Kh4
k1N2n1r/2qp4/1RP1qP1K/2qB2Bn/2R1Q3/2bbP2N/BR3N2/rnB2n2 w - - 0 1 illegal: No proof kernel
7B/KNBpqP1n/RN1P1Rb1/r4r2/2Q3qN/2P3qk/6bN/1qbRB1n1 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 Kh4 d4 g5 f4 a5 h6 a4 f6 b4 f7 b3 f5 g4 c3 g3 h7 g2 f6 b2 d5 e5+ d6 e4 Nf3+ Kg4 h4 g1Q+ Qd4 a3 h5 a2 h6 Qf2 Rd1 Ra6 Nh2+ Kh3 Bd2 e3 Be1 e2 Na3 b1B Nc4 Nc6 b8N Bg6 b7 Qg3 Nb6 Ne5 Qc4 Nf3 Nc6 Qg4 b8B Bb7 Bc7 Ng1 Na5 Bg2 Nb7 Qe7 Kb5 Bg7 f8N Ra8 f7 Nf6 Kc5 Rg8 h8R Nh7 Kb5 Be5 Kc5 Bf4 Kb5 Bd3 Ng6 Bc1 Nh4 Bg6 Kc5 Rg7 Re8 Ra4 Ra8 Rg8 Ra6 Re8 Rb1 a1Q Rb2 Qb1 Ra2 Ng5 h7 Rb8 h8B Nh7 Rad2 Ra2 Rd5 Ra4 Rf5 Ra5+ Qb5 Rg8 Rf6 Rb8 Nd5 Ra8 Kb6 Rc8 Ka7 Rb8 Bf2 e1Q Nb6 Q1e3 Qe2 Qeg3 Qc4 Rc8 Be1 Rf5 Bd8 Rcc5 Bc7 Ra5
NNNqq2k/1nP2B2/K1b1Qr2/n1b4N/3R1R1B/2P2p1r/5bP1/b2R1nB1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 bxa4 d4 Qf6 dxc5 Qd8 Kd2 h5 Kd3 a5 Kc4 d5+ Kb5 f5 e4 Kf7 b4 Kg7 g6 f4 c3 d4 e6 h4 e5 h3 c6 d3 e7 a3 e8N+ Kh6 e6 a4 e7 d2 g7 Kh7 c7 h2 Nh3 a2 Qe1 d1Q Na3 f3 Qe6 Q8d3+ Nc4 a3 Bg5 Q1e2 Rd1 a1B Nd6 a2 e8R Bb7 Nf4 Nd7 Rd8 Bb2 Bh4 a1B Nc8 Ra6 Nh5 Ne7 g8N Nc5 Rd4 Nc6 Nge7 Na5 Nc6 Qee3 Nb8 Ba3 Rf4 Qd5 Rdd4 Qd8 N4b6 Be4 Rg1 h1N Na8 Ng3 Bc4 Ncb7 Rgd1 Nf1 Bb3 Rd6 Bc4 Bc6+ Ka6 Qe5 b5 Bc5 b6 Be7 Qg4 Bg5 Bf7 Rf6 Qd7 Qee8 Qe6 Nd6 b7 Bh6 Rfe4 Be3 Rf4 Bf2 Nd7 Bg1 b8B Ndb7 Ba7 Be3 Nb8 Bf2 Ng3 Kg7 Bb6 Rhh6 Nh5+ Kh8 Ng7 Be7 R4d2 Be1 Bg5 Ba3 Bg1 Bc5 Rdd4 Rh4 Nh5 Rh3 Bh4 Bf2
kN1B4/2PB4/2nq1Rn1/3prb1K/1bN1Rr2/2q5/qNP2nQP/2RnNB2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 f5 Kf3 a5 b4 g5 e4 d5 b6 Kd7 b5 a4 b7 Kc7 h6 a3 e5 a2 c6 Qd6 h7 Ne7 e6 Ra4 Na3 Ng6 e7 Rc4 Rb1 a1Q e8B Qa2 Qe2 Bd7 Rb4 g4+ Kf2 g3+ Kf3 Re4 Qg2 Re5 Nc4 Be7 Bb2 Rf8 h8R Rf6 Rf8 Rf7 Qe2 g2 Bc1 Bc8 Nb2 Kb6 c7 Ka7 Qe4 Nc6 b8N Ka8 b6 Be6 Nd7 Rf6 Kf2 f3 Kg3 f2 Nf3 g1N Bg5 Nh3 Ne1 f4+ Kf3 Rff5 Kg4 f3 Rf6 Rf4+ Kh5 Bf5 Qe2 Bf8 Re4 Be7 Re6 Bf8 Bd8 Be7 Rf6 Bf8 Bg2 f1Q Qf2 Qfa6 Bf1 Qa6a3 Qg2 f2 Rg1 Qc3 b7+ Ka7 b8N Ka8 Nc4 Be7 Nc5 Bf8 Ncd3 Be7 Be2 f1N Ndb2 Ne3 Bf1 Nd1 Bd7 Nhf2 Be2 Qe6 Ned3 Ne3 Rc1 Bb4 Bf1 Ned1 Ne1 Qd6
2Rq4/2p1k1PB/r1B1r2P/8/bNn2K1N/QnPb1R2/1R2b1N1/1bBrBq2 w - - 0 1 legal: proof: g4 b5 d4 h5 a4 g5 axb5 e5 gxh5 exd4 f4 g4 Ra5 Bh6 Ra1 Bg5 fxg5 Rh6 Na3 Rh7 Nb1 Rh8 Kd2 d5 b4 a5 e4 f5 h4 f4 g6 a4 b6 d3 e5 f3 Ke3 g3 h6 a3 h7 g2 h5 d2 h6 f2 b5 a2 b7 d4+ Kf4 d3 b6 Bf5 e6 Na6 b8N Qe7 b7 Nf6 Ne2 g1Q Nc6 Qd7 b8R+ Qc8 e7 Nc5 Rb2 Qg2 Nb4 Nfe4 Rh3 Qb8 Rf3 Ra6 c3 Rg8 h8B Qd8 Bd4 Nb3 g7 Nd6 Bf6 Be4 Bh4 Nc4 Qe1 d1B Nd2 Kd7 e8B+ Ke6 Bb5 Re8 Bc6 Bf5 Bg3 Ke7 Rab1 Qh1 Bh3 Bg6 Bf5 a1R Qg1 f1B Be1 Bc2 Qa7 Bh5 Bh7 Qg1 Ne4 d2 Nd6 d1B Qc5 Bf5 Qa5 Bhg6 Qa3 Bd3 Nf5+ Kf7 Rd2 Re6 Nh4 Ke7 Rbb2 Bb1 Rd5 Bgd3 Rb5 Qg2 Rb8 Qg1 Rc8 Qg2 Nd4 Bfe2 Ndc2 Qf1 Ne3 Nd4 Bce4 Ba4 Neg2 Nb3 Bc6 Ba2 Be3 Rd1 Bc1 Bab1
K2R2B1/2R3rp/1nP1P1br/kNN4P/2B1N3/bn3b1Q/1qB1b1bR/b3N3 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 g5 f4 Be7 fxe5 Bf8 Bf4 gxf4 Kd2 f5 Kc3 a5 Kc4 d6 Kd5 Kd7 g4 Kc7 c4 f3 b4 f4 h4 f2 e4 f3 g5 a4 g6 a3 h5 a2 b6+ Kb7 c6+ Ka6 b5+ Ka5 c5 Qg5 g7 Qg4 b7 Qh3 c7 Qg3 b6 Ra6 e6 Qh4 e5 Qa4 e7 Nc6 e8B Qb5 b8R Nd4 b7 Ne6 Bg6 Qb6 Qd3 Qb2 Nd2 Nd4 Ne4 Bf5 c8N Nb3 Rc1 a1B Na7 Rc6 Be2 f1B Rd8 f2 b8N Bg2 Na6 f1B Nb5 Rb6 Rh2 Ne7+ Kc4 Nd5 g8B Rc6 Qh3 Bf3 Bd3 B1g2 Rc2 Be2 Nf3 Be7 B6f7 Bg6 Ne1 Bef3 Rc1 Bf8 Bc2 Nb6+ Kd3 Be7 Bc4 d5 Ke3 d4+ Kf4 Rc7 e6 Bf8 Ke5 d3+ Rd4 Re7 Kd6 d2 Kc6 Rg7 Rd8 Be7 Kb7 d1B Ka7 Bde2 Kb8 Nd7+ Ka8 Bd6 Bf7 Rf8 Bg8 Rff7 c6 Bb4 Rb1 Rf6 Nac5 Ba3 Rd1 Rff7 Rc8 Rf6 Rc7 Nb6+ Kb7 Bf5 Rd8 Rh6 Ka7 Bg6 Kb7 Nd5 Ka8 Nb6+
k3K2R/5p2/5P2/1bBrRn1n/nNNnQ1B1/qbR4B/NNPr1P2/1n3n2 w - - 0 1 legal: proof: h4 b5 d4 g5 hxg5 c5 a4 cxd4 axb5 Bg7 e3 Bf6 Qd3 Be5 Qd1 Bf4 exf4 Qb6 Nc3 Qc7 Nb1 Qd8 Ke2 h5 Kd3 a5 Kc4 e5 Kd5 e4 Kd6 h4 g4 e3 b4 e2 f5 e1N f6 d3 g6 a4 g7 d2 b6 a3 b5 a2 b7 h3 g5 h2 b6 Ne7 g8B Nbc6 b8N Nd3 b7 Nc5 g6 Nd4 g7 Na4 Ba3 Rh5 Qe1 d1B Bb5 Be2 Nh3 Qa5 Nc3 Kd8 Na6 Rc5 Rc1 a1N b8N Nab3 Na2 Nd2 N6b4 Nb1 Nf4 Rf5 Rg1 h1N Bh7 Ng3 Nfd3 Nh5 Nb2 Rc5 Bc6 Bb5 Bg2 Rg5 Bh3 Nef5+ Kd5 Kc7 g8R Kb7 Rg3 Ra7 Rc3 Ka8 N8c6 d6 Rd8 Rd7 Rh8 Rd8 Ne5 Be6+ Ke4 Bb3 Nec4 d5+ Ke5 Qa6 Qe4 Qa7 Nc6 Qa5 Bc5 Qb4 Re1 Qa3 Be7 Rg3 Bd6 Rd3 Bc5 Rd2 Bg4 Ne6 Re2 d4 Bg6 d3 Ncb4+ Kb8 Bh7 Ned4 Re1 Re2 Bh3 d2 Bg4 d1N Bh3 Nfg3 B7f5 Rd2 Bfg4 Ne3 Re2 Nef1 Ree3 Re8+ Kd6 Rf8 Ke7 Rd8 Qf5 Kb7 Re5 Rd5 Qe4 Ngf5+ Kf8 Ba6 Ke8 Ka8 Na5 Bd3 Nac4 Be2 Na5 Ba6 Nac4 Bb5+
1r1B4/r2PNBnn/1r1Pr2r/4K2Q/P4N2/q1R2bkr/1Rp1Bb1N/2R3B1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 c4 d6 h4 g6+ Kf6 d5 h3 g7 h2 d7 c3 Bc4 c2 Ra3 b2 Nh3 b4 Be3 b3 Bg1 Bc5 Nd2 b1R Be2 b2 Rc3 Rh6 Nf3 Ne7 g8B Qf8 Bf7 Bb7 g5+ Kg7 g6 Kf6 g7 Ra7 Qf1 Bf2 Qg2 Ba8 Qg4 Bc6 Qh5 Ba8 Kd3 e4+ Kc4 e3 Kd4 Rc1 Ke4 b1R Kd4 Rb6 g8N+ Kg7 Ke5 Rcb1 f6+ Kh7 Ra3 Nf5 Rc3 Ng7 f5 Qa3 Ne7 R1b4 Nf4 Bc6 Bc4 e2 Bb5 e1R+ Be2 Na6 d6 Nc7 Ba2 Rb2 f7 Nd5 f8R Nf6 Bf7 Rb8 Rc8 R2b6 Rb3 Ba8 Rcc3 Be4 Rb2 Ba8 Nd2 Bf3 Nf1 Bh4 Be3 Bf2 Rg1 h1R Nh2 Ne4 f6 Ng5 Qg4 Rh3 Bd4 Kh6 Bc5 Rb1 Rc1 Nh7 Be3 Bg3 Bg1 Bf2 Bb3 Re8 f7 Rbb8 f8B Rb6 Qe6+ Kg5 Qf7 Kh4 Qh5+ Kg3 Bf7 Rbb8 Ra2 R1b6 Rb2 Nf5 Bh6 Ng7 Bg5 Rf8 Bg6 Rf6 Bf7 Rh6 Ng8 Rg6 Bd8 Rf6 Ne7 Rg6 Re3 Re6+ Kd4 Ra5 Qf5 Ree5 Ng4 Rh6 Qh5 Rh3 Nh2 Be1 Reb3 Ra7 Rc3 Re4+ Kd5 Ree6+ Kd4 Reg6 Ke5 Bf2 Rc8 Rf6 Rc3 Re6+
qRb1r3/1pk1B1bR/2N3R1/1b6/1n1P1PPn/1N3B2/3QKbBb/3r1NRb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kd7 g4 e5 d4 h5 d6 c5 f6 h4 f7 b3 g6 e4 a5 e3 g7 c4 a6 b2 a7 c3 Bg2 e2 Nf3 h3 Nfd2 c2 Nb3 h2 N1d2 b1B Nf1 Na6 Qd2 Nh6 g8B Bg7 f8R Nb4 B8d5 Nf5 Ba3 c1B Rg8 Nh4 Bdf3 Bd3 Rg1 Rb8 a8R h1B Ra2 Bb5 Rb2 Bh6 Rg6 Bg7 Rc2 Qf8 Rc7+ Kd8 d7 Rh6 Qd3 Bf4 Qe3 Bh2 Qd2 Ke7 d8N+ Ke8 Rc5 Kd7 Nc6 Kc7 Rh5 Rh8 Rh7 Qe8 Qb2 Qd8 Kd2 e1B+ Kd1 Re8 Qe2 Re3 Qd2 Rd3 Ke2 Qh8 Be4 Qf8 f4 Bf2 Bef3 Na2 Be7 Nb4 Ra1 Qg8 Nc1 Qa2 Nb3 Qa8 Ra6 Bd7 Ra4 Re8 Ra3 Bc8 Ra6 Qb8 Ra8 Qa7 Rb8 Qa8 Qe3 Rd1+ Qd3 Ba4 Qd2 Bb5+
N1r4r/7p/P2r1B1b/4R1b1/1k2bBBB/NPR1nNq1/Pn2RK2/1r1b1Q2 w - - 0 1 illegal: No proof kernel
4N2q/2Rb4/r1B2pnq/b1r2P1N/1kr1PBKQ/1P2qB2/RN5q/b5BR w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Nc6 cxb5 Nd4 h4 Nb3 axb3 gxh4 e4 Ke7 Ke2 h5 Kf3 a5 g4 c5 g5 d5 b6 a4 b7 h3 b8R h2 e6 Kd6 g6 f6 e7 c4 e8B d4 g7 h4 b5 Kc5 b6 h3 b7 a3 Qe1 c3 Be2 a2 Na3 d3 Nc4 c2 Nb2 d2 Bc6 d1Q Bf4 Bd7 Rc8 c1R b8B Rh5 Rc7 Qd2 Ba7+ Kb4 Bd4 Rf5 Kg4 Ne7 g8N Rc4 Nh6 Rfc5+ Nf5 Ra6 Bf3 Ng6 Ne2 Be7 Bde3 Qh8 Ng3 Bd8 Nh5 Qh6 Rc8 Ba5 Rc7 Be8 Nd6 Bd7+ Kg3 Qh8 Ne8 Qc3 Rd1 a1B Rd2 Rf5 Bd4 Qe3 Kg4 Qh6 Qg1 Qh8 Qg3 Qh6 Qh4 Qh8 Rg1 h1Q Ba7 Qh2 Rh1 Be6 Na4 Bc8 Ra2 Bd7 Nb2 Qg2+ Bg3 h2 Bb6 Qg1 Bd4 Qgc1 Bf4 Rfc5+ Kg3 Ne5 Bh6 Nf7 Rf1 Qed2 Be2 h1Q f4 Rb6 f5 Qh2+ Kg4 Ra6 Rh1 Qdc3 Bf3 Qd3 Bf8 Qch6 Bg1 Qde3 Bd6 Qc2 Bf4 Ne5+ Kg3 Ng6 Kg4 Qh2
3b1Q2/1r1rNqR1/Kn1Pk3/bRB1b3/1qpR2P1/1b1B2q1/2PNNr2/4B2R w - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f4 dxe4 fxg5 Nh6 h4 Nc6 g4 Ne5 h5 Ng6 hxg6 Ng8 Ke2 Kd7 b4 e5 d4 a5 d5 h5 d6 c5 b6 f5 b7 e3 Kd3 e2 Kc4 e1Q Kb5 h4 b8R f4 g7 f3 g6 e4 Qd3 f2 Rb6 a4 Qc3 a3 Rc6 e3 Bc4 f1R Qb2 a2 Bd2 h3 Qf6 h2 Qf3 e2 Bd3 Qf6 Be4 Qg3 Rc7+ Ke6 Bd3 e1B Rb7 Rh7 Ne2 Ne7 g8N Rb8 g7 Rf2 Ka6 Nd5 b5 Qf7 Ne7 Nb6 g8R c4 Rg7 Bd7 Bb4 Be8 Bc5 Ba5 Nd2 Bc6 Rad1 a1B Bb4 Be5 Qf4 Rd8 Rb8 Rd7 Qf3 Nc8 b6 Ba4 b7 Nb6 Bc5 Rg2 Bf2 Bb3 Be1 Rf2 Ra8 Bac3 b8B Ba5 Ba7 Rb7 Rb8 Rd7 Rg1 h1Q Rb7 Qh6 Rh1 Qe3 Rb8 Qc5 Qa8 Qb4 Rb7 Nd5 Rb5 Rb7 Bc5 Nb6 Ng8 Be7 Qf8 Bd8 Ne7 Bc3 Rh5 Bf6 Rd5 Be5 Rd4 Rf5 Bf2 Rf4 Rh1 Rd7 Be1 Rf2 Re4 Rb7 Rd4 Qa3 Nc8 Qff4 Rg8 Rhd7 Ne7 Qb4 Rg7 Qf7
r3kb2/1Nbr4/1nR1p2B/K2P4/3QP1Bb/nN1bR3/P1N3bB/2RrN2n w - - 0 1 legal: proof: g4 a5 c4 g5 b4 d5 cxd5 axb4 h4 f5 gxf5 g4 Bh3 Qd6 Bg2 Qf6 Bf1 Qg5 hxg5 Bg7 Ba3 Bh6 Bc1 Bf8 f4 b5 d4 c5 Kd2 h5 e4 e6 f6 g3 g6 c4 g7 g2 f5 b3 Kc3 h4 d6 h3 Kb4 c3 d5 c2 Na3 h2 Bf4 c1B Nf3 g1B Qd4 b2 Bh3 b1B Nc2 Nh6 g8R Nd7 Bg4 Nb6 Nfe1 Ba6 Ka5 b4 Rg5 b3 f7+ Kd7 f6 b2 Rh5 Nf5 Rh3 Rh7 Re3 Bf2 Rg1 h1N Bh2 Kd8 d7 Nd6 Rg2 Bh4 Rgg3 Be7 f8N Nb5 f7 Na3 Rc3 Bh6 Rge3 Bd6 Rc6 Ke7 d8N Bc7 Nd7 Bf8 Nc5 Bf1+ Kb4 Bg2 Nb3 Bh6 f8B+ Ke8 Nb7 Rd7 Be7 Bf8 Bed6 Rb8 Ka5 Rc8 Bdf4 Rcd8 Nb4 Bd3 Bh6 b1R Nbc2 Rd1 Rc1 Ra8#
qRNn1K2/qq2n3/3n2qb/1Rp5/1P1P3N/1Qrr2B1/B1P1n1NR/k3B2N w - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f4 dxe4 fxg5 Nh6 h4 Ba6 g4 Ng8 h5 Bc8 Na3 Bf5 Nb1 Bg6 hxg6 Qd5 Ne2 Qd4 Ng1 Qd8 Kf2 Kd7 Kg3 Ke6 Kh4 Kd5 Kh5 Kd4 b4 e5 g7 c5 g6 f5 b6 a5 d3 f4 b7 e3 g5 f3 Qd2 a4 Bh3 e2 Bg4 e1Q Qg2 f2 Bh3 f1N Qf3 e4 Bd2 e3 Be6 a3 Ba2 e2 Nc3 Ne3 Rh2 Nf5 Nd1 Nge7 g8R Bh6 g7 Nd6 g6 Qg3 Ne3 e1Q Ng2 Qe4 Be1 Nbc6 b8B Ra4 Bc7 Qa8 Nh3 Nd8 Nf2 Qeb7 Nh1 Ra7 Re8 Ra6 g8N Qaa7 g7 Qg6+ Kh4 Rc6 Bb8 Rc7 Qf7 Rd7 Qb3 Qaa8 Nf6 Rf8 Ne4 Rf3 g8N Rg3 Nd2 Re3 Qf7 Kc3 Nf3+ Kb2 Qe6 Nc4 Bbg3 Nd6 Nf6 Qaa7 Nd5 Qaa8 Nb6 Qaa7 Bc4 a2 Nc8 Qaa8 Rc1 a1Q Ba2 Bf8 Rd1 h5 Qc4 Bh6 d4 Rc3 Rf8 Rc7 Qd3 Rc6 Qc4 Ra6 Rd3 Raa3 Qb3+ Kc1 Re3 Rd3 Re6 Qaa7 Qc4 Kb2 Rh8 Rac3 Qd5 Ne8 Rb6 Nd6 Rb5 Qaa8 Bb1 Q1a5 Ba2 Ka1 Qb3 Q5a7 Nb6 N8f7 Rb8 Nd8 Nc8 Qf6+ Kh3 h4 Kg4 h3 Kh5 Qg7 Nfh4 Qf6 Nf4 Qe6 Rd2 h2 Nfg2 Bf8 Kg5 Qg4+ Kf6 Bh6 Nf2 h1N Re2 Bg5+ Kg7 Qe6 Kf8 Qg6 Bf4 Ng3 Nh1 Qc7 Rd2 Ne2 Bfg3 Qcb7 Ne3 Nc1 Rh2 Ne2 Neg2 Bh6#
R1n1R1n1/1N2r2b/3B1r2/bq2P2p/2P1r1b1/P1R3R1/pn2K3/k1BNNB1Q w - - 0 1 illegal: No possible last move
1bB3k1/2rbr3/1P1N1K1P/6pB/3R2P1/nqBNprb1/4RN1N/nRQ3n1 w - - 0 1 legal: proof: d4 b5 e4 h5 Qxh5 c5 a4 cxd4 axb5 Ba6 Qh7 f5 exf5 Bc8 Ke2 Kf7 Kf3 d5 Kf4 a5 Ke5 a4 c4 d3 b4 d2 f4 d1N h4 a3 h5 a2 f6 d4 f5 d3 h6 e6 c5 d2 b6 Qd3 b5 Nf2 b7 d1R c6 Nh3 c7 Qc4 b6 Ra4 Nc3 Qd3 Bd2 Rb1 Nb5 Rd1 Be2 Ra7 Rb1 a1B+ Bc3 Qf3 Rh2 Na6 b8R Bd7 Rd8 Nc5 c8B Rc7 g3 Qd3 Nf3 Ng1 Rf2 Rd2 Nh2 Nb3 Bd1 Qf3 Re2 Ne7 Qg6+ Kg8 Qg5 g6 Nd6 Rd3 Qc1 g5 f7+ Kh7 g4 Ng6+ Kf6 e5 Bc2 Re3 Bd3 e4 Bb5 Ne5 Bc6 Be6 Be8 Bd7 Nb7 Qf1 Bd4 Ba4 Ke6 Bd6 f8N+ Kg8 f6 Rf3 Ng6 e3 Nf4 Rc3 Nh3 Nc4 Nf2 Rh7 Bh5+ Be8 Be5 Bb8 Rdd2 Bc6 Nd6 Qd1 Rd3 Na3 f7+ Kf8 Bd4 Bd7+ Ke5 Rc7 Bb2 Ke7 f8N Qc2 Ne6 Qc3+ Nd4 Kf8 Rdd2 Qb4 Nc2 Kg8 Ne1 Qa4 Bd4 Bb2 Rd3 Na1 Rd1 Qb3 Rdd2 Rg3 Kf6 Re7 Be5 Rh3 Rd5 Bd4 Ned3 Rf3+ Nf5 Bc5 Bc3 Bd6 Rd4 Bf4 Nd6 Bg3+
R4qN1/1bn2pnR/BQ1P1nPN/rr2R3/kP1Nb1r1/2B5/p3BN2/5Kb1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 c5 b4 a5 g4 h5 e5 h4 d6 c4 g6 h3 e6+ Ke8 b6 f3 g5 h2 d5 c3 g7 c2 g6 a4 b7 a3 d7+ Ke7 Qd4 Kd6 e7 a2 e8B Qc7 d8N Rh5 Beb5 Nf6 g8N Na6 b8R Qe7+ Bbe2 Bb7 Na3 Nc7 Nc6 Ra5 Bb2 c1R+ Kf2 Qd8 Nce7 Rc4 Ra8 Rf5 Qe3 Rg4 Nc2 Bg7 Rc1 Qf8 Nh6 Kd7 d6 Rfb5 Neg8 Kc6 Ke1 Bh8 Nh3 f2+ Kd2 Bg7 Nd4+ Kb6 Bc3 Bh8 Bg2 f1N+ Ke1 Ng3 Nf2 Ngh5 Kf1 Ng7 Re1 Be4 Bgf3 Bb7 Bd3 Be4 Bfe2 Bb7 Rg1 h1B Rg3 Bhe4 Rh3 Rbg5 Ba6 Rgb5 Ne6+ Kc6 Qb6+ Kd5 Rd3+ Kc4 Rh3+ Kb3 Nd4+ Ka4 Rh5 Nge6 Re5 Ng7 Rd1 Nd7 Rd3 Nf6 Rh3 Qe8 Nc2 Ncd5 Nd3 Nfh5 Re7 Qf8 Nf5 Ne6 Rh2 Be5 Nf2 Nec7 Ncd4 Ng7 Rh7 Nf6 Nfh6 Bh2 Re5 Bg1
1N4B1/R3n3/2R1QR1P/BK3b1b/r1qB2Rn/rpPp3r/1P1N1q2/3kNb2 w - - 0 1 illegal: No possible last move
1QRBK3/b4N2/5PBr/1NP1RN1b/2k1Bnqp/r1p1P3/3qnq2/rN3R2 w - - 0 1 illegal: No proof kernel
q1B5/1q4N1/1BNPRnQ1/2nbpKPb/5pP1/k1N2rRq/1b3B2/r5RN w - - 0 1 illegal: No proof kernel
1n1KQBnb/rb6/2qpR3/1P1B3N/p1N1P2n/4q2k/Pb3RrB/1N1BR3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 fxe5 Be7 dxc5 Bf8 c4 bxc4 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 Kg4 e4+ Kh4 b4 f5 b5 g5 e6 a5 h6 a4 e7 d6 e8B f4 c6 g4 c7 c3 h7 f3 Bh5 c2 Bc4 f2 Ne2 f1Q Bh6 c1N Nf4 Qe1 Rf1 g3 Rf2 Bh3 c8N g2 Nb6 Nd7 Kc6 g1B Bd5 Qa5 Nc4 Nb3 Qf3 Be7 Bf8 Qe8 Bg4 Bd8 Nh5 Qe1 Qf7 Ra7 Bd1 Bf6 Qe7 Qe3 Qd8 Ra8 Kc7 Nb8 Qe7 Qc6+ Kd8 Bc8 h3 Kg5 h4+ Kg6 Bc2 Bb2 Bd1 Nd4 Qd7 Ra7 Qe8+ Rf7 Ng3 Nf3 h5+ Kg5 h6 Kg4 Nh5 Bh2 Ncd2 Nf6 Nc4 Rg8 h8B Ra7 h7 Bhe5 Bhg7 Kh4 h8R Kh3 Rh6 Bb7 Bh8 Rg1 Bhg7 Ng8 Re6 Bed4 Be5 Rg2 Bh2 Bh8 Nbd2 Qe1 Bc2 Qe3 Re1 Bhd4 Nb1 Nh4 Bd1 Bh8
k3n2n/2R2q2/q1PN1r2/3PQ2b/3r2B1/pRK1qpBN/r4P1b/N1BN1R2 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 c4 Kd7 d4 Kc7 Kd2 Kb7 h4 a5 b6 e5 d5 g5 h6 f5 h7 g4 h5 f4 h6 e3+ Kc3 a4 Qd4 g3 Bh3 e4 Kb4 g2 Na3 f3 Ne2 g1R Kc3 Bd6 Nc2 Nd7 Bg4 Qe8 Ra3 Nf8 Na1 Qf7 Rb3 Bh2 Qe5 Rd1 Rf1 Ra6 c6+ Ka8 c7 Nf6 c5 Ne8 c6 Ng6 Kc4 Rd3 Nc3 e2 Nd1 Rd4+ Kc3 Rf8 h8R e3 Rh7 Nh8 Rg7 Bf5 c8N Bg6 h7 Bh5 Nd6 e1Q+ Kc2 e2 b7+ Ka7 b8B+ Ka8 Bc7 Qa5 Bb8 Qf6 Rc7 e1Q Kb2 Qe3 Kc2 Ng6 h8N Qf7 Kb2 Ra7 Kc2 Qa6 Kb2 Qg7 Nhf7 Nh8 Ng5 Rf6 Nh3 Qf7 Rc8 Re7 Rc7 a3+ Kc2 Qh6 Kc3 Qf4 Qf5 Re2 Qe5 Ra2 Ba7 Ra4 Bae3 Qe4 Bf4 Rd4 Bg3 Qe3+
k1Bn2NR/2nN2P1/6Nr/Bnbp4/6q1/B2pQ3/PRb1P3/1rNK1Rbq w - - 0 1 illegal: No possible last move, all moves rejected
2B3qb/1BRq2P1/1Kb2RP1/2r2pN1/1n1P3q/knQ1N3/npRB2Nr/2N5 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Ke3 f5 Kd4 h5 g4 b5 e4 h4 a4 b3 a5 h3 e6+ Kd6 a6 b4 e7 b2 e8N+ Kd7 e5 c6 e6+ Ke7 Kc5 h2 d4 b3 a7 Nf6 Qe1 Rh7 Ng7 Rh6 Na3 b1Q Nc2 b2 Ra6 Bb7 Ne2 Qd7 Nh5 Qc8 Nhf4 Qa2 Ng2 Bg7 d6+ Ke8 e7 Kd7 e8N Qg8 Nce3 Bh8 Ng7 Nd5 Ne6 Nc3 Rg1 h1Q Rb6 Ke8 d7+ Ke7 d8R Na2 Qd2 Qd7 Rc8 Rh3 Rc7 Na6+ Kc4 Rb8 a8B N6b4 Kc5 Qh2 Rh1 Qf4 Qd3 Rh2 Bd2 Qf2 g6 Qf4 g5 Qh4 g7 Rc8 g6 Kf6 Ng5 Ke7 Ra6 Kf6 Kb6 c5 Ka5+ Ke7 Rb6 c4 Rf6 Bf3 Ra7 Rc5+ Kb6 Bc6 Rc7 c3 Bc1 c2 Bd2 c1N Qc3 Qc4 Ng3 Qg8 Ba6 Qh3 Bc8 Qh4 Rf8 Kd6 Ne2 Rc4 Bab7 Rc5 Nc2 Kd5 Rf6 Nb3 Rc1 Na1 Qa3 Kc4 Qa5 Kb3 Nce3 Nd3 Qc3+ Ka4 Rc2 Nb3 Nc1 Ka3 Qc4 Ndb4 Qd3 Qde8 Qc3 Qd7
4R3/N1bp2PB/2bQ2K1/n1N1R2N/5P1p/1rR2Rb1/kB2Pqnq/1r2nB2 w - - 0 1 illegal: No proof kernel
r1rbkBrN/R1p1bbqN/Q2P1B2/1qp5/n2R4/5BnB/P2RNP2/K7 w - - 0 1 legal: proof: e4 a5 c4 h5 b4 f5 bxa5 h4 exf5 h3 c5 d6 gxh3 dxc5 h4 Qd4 h5 Qd8 d4 b5 Kd2 e5 Kc3 g5 Kb2 g4 h4 e4 a6 e3 a7 e2 d5 e1R h6 b4 d6 b3 h5 g3 h7 g2 f6 Re4 h6 Kf7 Nf3 g1B Qd3 Bd7 Bg5 Bh2 Nc3 Qe7 Ne2 Be8 Bh3 Bf4 Rhd1 Nd7 Qa6 Nb6 Rd4 Na4+ Kb1 Rc8 a8B b2 Bh4 Qe5 Bb7 Be7 Ng5+ Kf8 f7 Nf6 Bc6 Rg8 h8N Bd8 h7 Nh5 Ba8 Re3 Bf3 Ra3 Rd2 Ng3 Rd4 Kg7 f8B+ Kf6 Ng6 Bf7 h8R Qe7 Rd2 Qd7 Rd4 Qg4 Nh7+ Ke6 Bg5 Kd7 Bf6 Bg5 Rd2 Rg7 Rg8 Ke8 Nh8 Rg6 Be5 Bge7 Bf6 Qd7 Rd4 Rh6 Rgg4 Rg6 Rd2 Rg8 Rb4 Nh5 Rb7 Ng3 Ra7 Qg4 Kc2 Qg7 Rad1 Rb3 Kb1 Rbb8 Rd4 Ra8 R1d2 Nb6 Kc2 b1Q+ Kc3 Qd3+ Kb2 Qb5+ Ka1 Na4
N2rBBq1/1pnN3k/bBP2PR1/1r1PbK2/1Rb1Nn1n/p1q3R1/8/3R3Q w - - 0 1 illegal: No possible last move, all moves rejected
q2BN3/PqRP4/BnNNp1p1/1r5R/1b1r4/1kbn2BQ/b4P2/nBR1K3 w - - 0 1 illegal: No possible last move
2rbR3/p1RN1b2/1nRp4/1N1n2KB/1B3RbP/Q2qr1P1/qNP5/q5kB w - - 0 1 illegal: No proof kernel
1RrR1n2/r2Nr1nQ/1BB3R1/2b1Np1B/4B1p1/P1Pb4/2Pr2N1/1K3rkq w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 b4 e5 fxe5 axb4 Na3 c4 Nb1 c3 dxc3 Rh7 Nd2 Rh6 Nb1 Rh8 Kd2 Ke7 h4 Ke6 e4 g5 a3 b5 h6 f5 h5 d5 h7 b3 h6 b4 Qh5 g4 Nf3 d4 Nh4 d3 Ng2 Kd7 e6+ Kc6 e7 Kc5 e8B b2 e5 b3 e6 Nd7 e7 Ra7 Kd1 d2 Bd3 Ba6 Be4 Qb8 Bg6 Ngf6 e8B Rg8 h8R Qh2 h7 Bd3 Qh6 Bd6 Bh5 Nf8 B8c6 Ne8 Qg6 Rgg7 Rg8 Rgc7 h8N Re7 Qh7 Ng7 Ng6 Qh3 Rf1 Qh1 Re1 Kc4 Rh8 Bb4 Ne5+ Kc5 Ra2 Kd6 Nd7 Bc5 Nb8 Ke5 Rg8 Kf6 Nd7+ Kg5 Ra1 Ng6 Rb8 Nf8 Ne3 Kh4 Ng2+ Kh3 Rd8 Bf1 Re3+ Kh2 Rd3 Kg1 Rd6 Bb5 Rg6 Ba4 Ke2 d1R Nd2 b1R Nc4 b2 Nce5 Rf1 Be3+ Rf2+ Kd3 Rf1 Rb1 Bb3 Bd4 Ba4 Kc4 Bb5+ Kb3 Be2 Ka2 Bd3 Rd1 b1R Rb8 Rb4 Ka1 Rba4 Kb1 Rc7 Be3 Raa7 Bd4 Rc8 Be3 Bb4 Bb6 Bc5 Nf6 Be2 Ka2 Rf3 Rd8 R3f2 Nfd7 Bd3 Kb2 Rd2 Ka2 Rf3 Kb1 Rf1+
2K1Bbk1/3R1b2/qrR2P2/b1pbPPnn/3r1B1B/4p2N/1Nb1N2R/3Q1B2 w - - 0 1 illegal: No proof kernel
RRb2Bbn/3R4/1pn1p2B/3qkP1B/1RQr4/4b2b/P1PN3r/1N2KNb1 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 f4 Kf7 h4 Kf6 h6 d5 h7 g5 h5 b6 a6 e6 h6 g4 a7 g3 Qe2 d3 Rh4 d4 Nf3 g2 Nh2 g1B Bh3 Qd6 Nf1 Nc6 Bg4 Qd5 Bh5 Nge7 Qe4 Rb8 a8R Ng6 Qe2 Bc5 Be3 Rf8 h8N Rd8 Nf7 Nh8 h7 Rb7 Ng5 d2+ Kd1 Rg7 Nf3 Rg2 Qc4 Rh2 Rg4 Rh3 Ke2 d1B+ Ke1 d3 N3d2 Rh2 Rg7 Bg4 Rd7 Bh3 Rb8 Ng6 h8R Bd4 Na3 Bc5 Rb1 Bd4 Rg8 Nh8 Rb4 Bc5 Nab1 Bd4 Nb3 Bc5 Bc1 Bce3 N3d2 Qg2 Ra7 Rd4 Raa8 Qd5 Rg4 Ke7 f6+ Kd6 f5 Ke5 f7 Bg5 f8B B5e3 Ne4 d2+ Kd1 Qd7 Rg7 Qd5 Rga7 Rh1 Ke2 d1B+ Ke1 Rh2 Rd7 Bf3 Bg6 Bh5 Ned2 Rd3 Bf7 Bg6 Be8 Bh7 Bh5 Bg8 Ne4 Bc5 Bch6 Bce3 Ned2 Rd4
3n3r/1N5p/b2n2Q1/3rR1q1/2P1n1NN/knPB1np1/PbR1K3/BB1NR3 w - - 0 1 illegal: No proof kernel
2B3BN/b5r1/1B2rb2/R1B1pP1P/1nk4P/3R1p2/1nN2R1Q/q1Kb1bNr w - - 0 1 illegal: No proof kernel
1R1r3N/Nn1N2P1/P2pbQB1/2R2q2/1K1N4/P3b1bB/1b2pBR1/1n1k2rr w - - 0 1 illegal: No proof kernel
3BNbR1/1kr2pb1/n1r2R1P/3B1B2/2NQp2P/1rq1R2P/4NKbr/4n1R1 w - - 0 1 illegal: No proof kernel
2BQb1R1/1N2Pr2/2B5/2N3R1/1nrbNR1B/1nrbPqpp/b1P5/2Nk2K1 w - - 0 1 illegal: No proof kernel
b1r1r1N1/1n2P1PN/1KnN1p2/4R2B/2N4q/5Bp1/4RPQB/kbrbR2r w - - 0 1 illegal: No proof kernel
1RR1rr1r/1N1P1bP1/k6P/bn1r4/p2qBp2/B1Nb1R2/1n4NQ/1K3BR1 w - - 0 1 illegal: No proof kernel
R1b2bN1/1Rr2n2/4BQqN/4P2B/R2p3q/P3rKB1/1qn1Pp2/Bq4kN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 h4 Ke6 c4 Kf5 h6 Ke4 h7 f5 h5 g5 c6 b5 c7 d5 h6 f4 c5 f3 c6 g4 Bh3 b3 Bb2 b4 Nd2+ Kf4 Ne4 d4 Qf1 Ra3 Nf6 Be6 c8B Ra7 c7 Nc6 Rh2 Bf5 Be6 Rb7 c8R Rc7 Bc3 b2 Ra8 b1Q Bf7 b3 Bh5 b2 Rg2 Nge7 Ng8 Nd5 Ra4 Qf6 a3 Qc1 Rb1 Ne3 Ne7 Rg8 h8B Nc2 h7 Bg7 Rg3 Nd8 Rg2 Qg5 Rg3 Bh6 Bf6 Ke4 h8N Bg7 Nhg6 Nf7 Nh4 Be6 Nhf5 Rh8 Bg6 Rh4 Nh6+ Kf4 Bh5 Bd7 Ra1 Be6 Ra2 b1Q Rb2 Bf5 Rb8 Bd7 Neg8 Bc8 Bd8 Bf8 Ba1 Qcb2 Rba8 Ke4 Bg2 Qf6 Nh3 Qg6 Bg5 Qf6 Bd2 Qe7 Be1 Qd8 Kg1 Ke3 Nf2 Qg5 Rh3 g3 Nh1 Re4 Qf2+ Kf4 Bf1 g2 Qh4+ Qg4 Qf6+ Ke3 Bf2+ Kd2 Bh4 f2+ Kh2 Ke1 Rb3 Qg6 Rb7 Qg4 Qf5 Qg6 Bg3 g1Q+ Kh3 Bc5 Bg2 Bf8 Bgf3 Kf1 Bfg4 Qg2+ Kh4 Kg1 Qf6 Re3 Be6 Q2e4+ Kh3 Qf4 Qg5 Qff6 Kg4 Qe7 Kf4 Re4+ Kf3 Qef6+ Qf5 Qh4 Qf6 Re3#
1b6/K2Q2R1/1PBnp2b/Np2B3/1rP2R1P/4r1bq/1NbnBBNk/2qR4 w - - 0 1 illegal: No proof kernel
3B1r2/4ppq1/NbR2P1n/R4Nr1/2R1P1Pn/qn2B1N1/1n4QK/3BkBb1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 b3 gxh4 b6 a5 Ra2 a4 Ra1 a3 Rh2 Bd7 Rh1 Ba4 bxa4 Qd6 Qc2 Qd7 Qd1 Qd8 d4 Kd7 e4 Kd6 f4 c5 Kf2 h5 g4 c4 Kg2 a2 b7 h3+ Kh2 h4 f5 c3 f6 c2 a5 Nd7 b8R Nb6 a6 Nh6 a7 Na4 Bg5 c1N Qe2 Nb3 Qd2 Qa5 Rb4 Nb2 Rc4 Qa3 Nc3 Rg8 Be3 Rg5 Nge2 Bg7 Rc1 a1B Nd1 Rd8 a8B Rf8 Kg1 h2+ Kg2 Rc8 Bc6 Rf8 Ba4 h3+ Kg3 Rh8 Rg1 h1N+ Kh2 Ng3 Qc2 Ngf5 Ng3 Ra8 Qg2 Nh4 Rh1 Rf8 Rc6+ Kd7 d6 Ke6 d5+ Ke5 d7 Rh8 d8N Rf8 Bb6 Kf4 d6 Rf5 d7 Rg5 Qg1 Kf3 R1c4 Rc5 Qd4 Rg5 Ne3 Kf2 Ne6 Ke1 d8B Qc5 Rg1 Qa3 Kh1 h2 Nc7 Nd3 Qe5 Bd4 Na6 Nb2 Nef5 Bf2 Ba7 Nf3 Kg2 Nh4+ Kh3 Bb6 Rg2 Bf2 Be3 h1Q+ Rh2 Qf3 Qc7 Qf4 Rg2 Qe5 Kh2 Qb5 Qf4 Qb8 Qf3 Qf4 Nd4 Qf5 Rg1 Qh7 Qg2 Qa1 Bb5 Rh5 Rc2 N6f5 Bf4 Bh6 Bbe2 Qg7 R2c4 Qa2 Bc1 Bhe3 Bf3 Nh6 Ndf5 Bb6 Bf4 Bfe3 B1e2+ Kd2 Ra1 Rg5 Bd1+ Ke1 Bfe2 Bf2 Be3 Qa4 Bf1 Qb4 Ra4 Qa3 Ra5 Bg1+
1Nr2kN1/p3b2q/P1b1b1n1/RP1qpPr1/R4B2/BR1q2Q1/2R1K3/4Nr1B w - - 0 1 legal: proof: g4 b5 e4 g5 c4 d5 exd5 bxc4 h3 f5 gxf5 Nd7 h4 g4 Qe2 Ne5 Qf3 Nf7 Qd1 Ng5 hxg5 Bb7 Rh5 Ba6 Rh1 Bc8 d4 e5 f4 h5 a4 c5 b4 g3 d6 c3 g6 g2 b5 h4 a5 h3 a6 c4 f6 c2 f5 h2 d5 c3 g7 Rh3 d7+ Kf7 d6 Rd3 Nf3 g1Q Nd4 Qg4 Na3 Ne7 g8N Qh5 Bf4 c1R Nac2 Nd5 Ra5 Be7 Bg2 Qf3 Nc6 Kf8 f7 Qc7 d8R+ Kg7 Nb8 Be6 f8B+ Kf7 Rg1 h1B d7 Rd4 Rc8 Qd3 d8R Qb7 Bd2 Rg4 Bf4 Rg5 Be4 Qc6 Rg3 Qc7 Kf2 Rb1 Ne1 c2 Rd7 c1Q Qb3 Qcd1 Rh3 Qb7 Rc2 Qh5 Rdc7 Qh7 R7c4 Qc6 Rca4 Bf3 Bd2 Nf4 Bc1 Ng6 Bf4 Qcd5 Qc3 Bd8 Ba3 Be7 Rg3 Kf8 Qb3 Bg4 Bh1 Bf3 Rh3 Qd7 Qc3 Bc6 Qb3 Q3d5 Qg3 Q7d6 Ke2 Ra1 Nf3 Rf1 Ne1 Bb7 Nc6 Rc8 Nb8 Qd7 Qg4 Bc6 Rb3 Qd4 Qh4 Q7d5 Qg3 Qd3+
1R3N1b/q2r4/1K2bBPP/1p1q1R2/1r3qR1/nPBrp2k/BbQN2N1/3R4 w - - 0 1 illegal: No proof kernel
2bn4/r1npN1Bq/Q5pq/r3K1k1/1RRq4/P1rB1R1B/2BN1PP1/1n3N2 w - - 0 1 illegal: No possible last move
rrN1b1B1/n2B1pq1/7r/RQRq4/P2q1RNk/K1bb3P/pB3P2/1B5N w - - 0 1 illegal: No proof kernel
3Br3/2Rn1qR1/n1b3N1/2B1N2R/1rp1r1Bn/1PPNQn1p/n1P3Bk/K7 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bh6 Nc3 Bg7 Nb1 Bc3 dxc3 Bb7 Kd2 Ba6 Ke1 Bc8 Kd2 Kf7 f4 Kf6 g4 c5 b6 a5 b7 d5 Bd3 e5 Rh3 h5 Rh1 e4 Bc4 h3 Be2 h4 Rh2 d4 Bf1 c4 Qf3 a4 Ne2 d3 Bg2 a3 Qe3 Na6 b8R a2 Rb7 Qd5 Rg7 Qf7 b3 Bd7 Kd1 Re8 Nd2 Bc6 Nf3 d2 Ne5 Rh5 Rh1 h2 Ba3 Rh8 Nc1 Rb8 Bc5 Rb4 Ncd3 h3 Rf1 h1N Rg1 Qe8 Rc7 Qf7 Bb6 Ng3 g5+ Kg7 g6 Kf6 g7 Ne2 Ba5 Nc1 Bb6 Ne7 g8B Nc8 Ba5 Nb6 Bh7 Rf8 Bg6 Ra8 Bh5 Nd7 Bg4 Re8 Bb6 Kg7 f6+ Kh6 Rb1 a1R f5+ Kh7 Rf1 Na2 Rf4 Kh6 Bc5 Qg8 f7 Kg5 f8N Kh4 f6 Qf7 Rc1 Rb1 Rf5 Ra1 Be7 Rb1 Bd8 Ra1 Qb6 Kg3 Nfg6 Kh2 Rh5 Rb1 Qe3 Ra1 Ke2 d1N Kd2 Rb1 Qf3 Ne3 Rg1 Nf5 Qe3 Qh7 f7 Re1 f8B Qf7 Bc5 Nh4 Qh6 Rf1 Qg5 Rf4 Kd1 e3 Qh6 e2+ Kd2 Re4 Qe3 e1N Kd1 Rb6 Kd2 N2b4 Kc1 Rb8 Kb1 Na2 Ka1 Rb4 Rf1 Qg8 Rf7 Nef3 Rg7 Qf7
2rn2rR/5B2/kr1Nr3/Bq4R1/1r2pBb1/bKpbPPR1/2P2N2/2N1QR2 w - - 1 2 illegal: No possible last move, all moves rejected
3R2N1/p1bqr2P/K2BQn1N/1P2RqR1/k3qNRp/2n5/2q4P/1r1BB2q w - - 0 1 legal: proof: f4 b5 c4 h5 a4 e5 axb5 d5 cxd5 exf4 g3 h4 g4 Bf5 Ra2 Bg6 Ra1 Bh5 gxh5 Qd6 Qb3 Qd7 Qd1 Qd8 e4 Kd7 Ke2 c5 Kd3 g5 Kc4 f5 d4 g4 b4 g3 h6 f3 b6 g2 Kb5 c4 h7 f2 b7 f4 d6 c3 d5 f3 e5 c2 e6+ Ke8 d7+ Ke7 d6+ Kf6 e7 Ke5 e8R+ Be7 Qe2+ Kd4 Ra5 Nf6 Bd2 c1Q Nh3 g1Q Nf4 Nc6 b8B Qg6 Be1 Qcc2 Qe6 Qge4 Nd2 Kc3 Be2 f1Q Rg1 f2 Ka6 Nd4 Rg4 Nb5 Bd1 Qfh1 Reg8 f1Q R8g5 Qe8 d8N Qd7 Nf7 Bd8 Nh6 Re8 Re5 Re7 Bc7 Qec4 Ne4+ Kb3 Bb8 Nc3+ Rab5 Qc7 d7 Ka4 Reg5 Qfd3 Re5 Q7c5 Bd6 Bc7 d8R Rb8 Reg5 Q4d4 Re5 Qdf3 Reg5 Qf5 Re5 Ne8 Nf6 Q3e4 Nfg8 Nf6 Bc5 Qd7 Bd6 Rb7 Rc8 Rb5 Rd8 Rc5 b5 Rd5 Be2 Rd1 Bf3 Rc1 Bd1 Rb1
7B/NK1b1nqP/4b2p/1Qr1R3/1Pp2RR1/rBPRr2q/2r5/NkB1bN2 w - - 0 1 illegal: No proof kernel
2n3rk/Br1Nq2n/K2N4/1B2bR2/2pP1n1r/1qpB2R1/2PP1n2/B2Q1N1R w - - 0 1 illegal: No proof kernel
2RNbnRB/1b2b1p1/6Nr/2qp2N1/B1Q5/bRnP1K2/q1P3P1/qN2kB2 w - - 1 2 illegal: No proof kernel
1r1qn2B/1Bb1Nk2/1n1P3n/1p1R4/b1pP2Qn/K5R1/RBPNqN2/q6N w - - 0 1 legal: proof: g4 d5 e4 f5 exd5 b5 b4 a5 h3 axb4 gxf5 g5 h4 g4 Bd3 Ra6 Bc4 Rg6 Bf1 Rg5 hxg5 Be6 Ke2 Bd7 Ke1 Bc8 a4 e5 d4 h5 Kd2 c5 f4 b3 Kc3 e4 Kb2 h4 f6 e3 a5 h3 f7+ Ke7 g6 g3 f5 g2 f6+ Kd6 g7 h2 a6 e2 a7 e1N a8R Be6 R1a3 Qe8 Nh3 g1Q Qg4 Qf2 Nd2 Qe2 Bg2 Nd7 Nf2 Nh6 g8N Nb6 Ne7 Nf3 Nf5+ Kd7 R8a5 Bd6 f8B Qd8 f7 Bc7 d6 Nh4 Bg7 Rf8 Re1 h1N Bb7 Ng3 Bh8 Nh5 Ng3 Ng7 Ngh1 Ne8 Ra2 Rg8 Ka3 b2 Ra7 b1Q Bb2 Qbd1 Rg1 Qa1 Rg3 Rf8 Ra4 Rg8 Rc4 Rf8 Rcc3 Rg8 Rcf3 Rf8 Rf5 Bb3 Bf3 Ke6 Bb7 c4 Rc5+ N6f5 Rd5 Rg8 f8N+ Kf7 Ng6 Ba4 Ne7 Nh6 Nf5 Rf8 Ne7 Qa8 Qf3+ Nf6 Rdg5 Rc8 Qg4 Ne8 Rc5 Rd8 Rd5 Qc8 Ng8 Qd7 Ne7 Rb8 Re5 Qc8 Rd5 Qd8
k3rrNb/1R2p1B1/2P4n/2K2Np1/4b2B/r1RRPP2/Q5bq/1r1qNN1B w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 gxf5 c5 a4 cxd4 axb5 Nc6 h5 Ne5 Ra2 Nf6 Ra1 Ng6 hxg6 Ng8 Kd2 h5 Kd3 a5 Kc4 h4 b4 a4 e3 a3 b6 h3 b7 a2 b8R h2 g7 d3 f6 d2 b5 d6 f7+ Kd7 b6 Kc6 b7 Rh5 Bg2+ Kb6 Bb2 Ka7 Nf3 Rh6 Qe2 d1B Nbd2 Re6 Rc1 a1R c3 Nf6 g8N Bg7 f8N Bc2 Ng6 Ra3 Ngh4 Be4 Rhd1 h1Q Nf1 Qh2 Bh1 Ng4 Ne1 Nh6 f3 d5+ Kb4 d4 c4 d3 c5 d2 c6 Qd7 Kc5 Bh8 Bg7 Rf6 Rc3 Rf8 Qc4 Qd3 Qa2 Bh3 Nf5 Qde2 Re8 Rd8 b8B+ Ka8 Bg3 Bg2 Bh4 Rb8 Rb1 d1R Rb7 Rb1 Rd8 Qd1 Rdd3 Rbe8
2n3R1/2pP2Nq/N1R1RQ1P/1b1N2q1/3N1b2/B1P2bpq/2B2rq1/k3nBK1 w - - 0 1 illegal: No possible last move
b1RbKB2/R1Nr2bn/1pRNrN2/3nQ2p/B6P/1Pb4n/n4B1P/3k2B1 w - - 0 2 legal: proof: c4 d5 cxd5 f5 e4 a5 Qb3 a4 exf5 a3 g3 Qd6 Qc2 Qc5 b3 Qb4 Qb2 Qh4 gxh4 axb2 Ke2 Kf7 Kd3 Kf6 Kd4 g5 Kc5 Ke5 f4+ Ke4 d4 h5 a4 e5+ d6 c6 f6 g4 d5 g3 a5 g2 a6 Ne7 d7 b6+ Kd6 c5 d8R c4 f7 c3 f5 c2 f6 Rh7 a7 Kd4 Nf3+ Ke4 Nc3+ Kf5 Nd2 Kf4 Bb5 Ke3 Nce4 b1N Ba4 Ke2 Nc4 g1N Be3 c1B Bf2 Bg7 f8B Nh3 f7 Bg5 Nf6 e4 Rc1 Bb7 Rc8 e3 Kc7 Nd7 Kd8 Rh6 d6 Nd5 Ke8 Nbc3 Be7 Rh7 f8B Na2 Rc3 Rb8 a8N Bc6 Nc7 Ba8 Rcc1 Rb7 Bg1 Rh6 Rc3 Ne5 d7 Nf3 d8Q Ra7 Nd7 Re6 Nd6 Kd2 Rc5 e2 Rc6 e1B Nf6 Ke2 Qd7 Bc3 Bf2 Nc1 Qd8 Kd1 Ra3 Na2 Qd7 Re2 Qf5 Re6 Qe5 Rb7 Ncb5 Rd7 Nc7 Kc1 Bb5 Kd1 Ra7 Bgd2 Bg1 Nfg5 Ba4 Nh7 Ng4 Rh6 Bg5 Rg6 B5e3 Rf6 Bef2 Bg5 Nh6 Rg6 Ng4 Be7 Nf6 Rh6 Ng8 Re6 Nf6 Bd8+
1B2RN1b/q5Br/b2P1r2/p1pBbPBk/p4P2/2n5/1R1QN1R1/rn1K1N2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 f5 cxd5 h5 exf5 Nc6 gxh5 Nb8 a4 bxa4 d4 Kf7 h4 e5 b4 a5 h6 g5 h7 c5 b5 g4 d6 g3 d7 g2 d5 e4 d6 e3 b6 e2 h5 Ra7 h6 Qe7 d8N+ Kf6 b7 Na6 b8B Nc7 Ra2 Ba6 Rh2 Nd5 Rb2 Nc3 Qd2 Bg7 Ne6 Qc7 f3 Ne7 Nf8 Rg8 h8R Ned5 h7 Qe7 Nh3 g1B Nf4 Kg5 Bg2 Be5 Bh1 Rg6 Rg2+ Kh4 Rg8 Qf7 h8B Bgd4 Bg7 Re7 Nh7 Rd7 Re8 Rf6 Nf8 Re7 Qc2 Rc7 Nd2 Nb1 Nf1 Ndc3 Be3 Ra7 Qd2 Rc7 Nd3 Kh5 Nc1 Ra7 Bg5 Qc7 f4 Qb6 B7h6 Rh7 Bg7 Qb7 Rg4 Qa7 Bd5 Nb5 Rg2 Bc3 Kf2 e1R Ne2 Rd1 Ke3 Bcd4+ Kd3 N5c3+ Kc2 Rf7 B7h6 Bh8 Bg7 Be5 Qe3 Rf6 Qc1 Rd4 Qd2 Rb4 Kc1 Rb3 Kc2 Ra3 Kc1 Ra1 Kc2 Ne4 Kd1 Nec3+
2Nr2qb/4R1Bb/1R4pP/rq1bp1Bn/QR2B1p1/1P2PN2/5N2/K1k1Nn2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 Qd7 f5 Qe6 fxe6 Be7 Qc2 Bc5 Qd1 Bf8 h4 Ke7 d4 Kd6 Kd2 f5 Kc2 c5 b6 a5 e7 a4 b7 f4 h5 c4 h6 f3 Nh3 f2 Bg5 g6 e3 a3 Bd3 f1B Nf2 c3 Nd2 a2 Nf3 Be6 Be4 Nf6 Ne1 Nbd7 b8R Bc4 Rb4 Ra5 Rh2 Bg7 e8N+ Ke7 Rc1 a1Q Nd6 Qa4+ Kb1 Qb5 Qa4 c2+ Ka1 Nc5 Nc8+ Kd7 d6 Nh5 d5 Rd8 Bf6 Bh8 Bg7 Bg8 Rb1 c1Q Rh3 Nf4 Rf3 Nh5 Rf8 Qd1 Re8 Bh7 Re6 Qf3 Re8 Qf7 Re6 Rf8 Re8 Qg8 Re7+ Kd8 d7 Kc7 b3 Kb7 d8N+ Ka6 d6 Bd5 d7 Re8 Nc6 Rd8 Bd3 Ne4 Nd4 Neg3 Be4 Nf1 Rd1 Kb7 Ndf3 Kc6 Rd3 Kc5 Rdd4 Qc6 Rb7 Qb5 Rb4 Qc6 R4b6 Qb5 Qa2 Kb4 Qa4+ Kc3 Rb8 Qc5 Rb4 Qb5 Rb6 Rf8 d8B Re8 Nh2 Kd2 Nhf3+ Kc1 Rf7 Bc4 Bg5 Bd5 Re7 Rd8
3n4/rNN1P3/q5p1/nbPKRB1p/P1Q3R1/3N3B/2p1q2N/brR1Br1k w - - 0 1 illegal: No proof kernel
6qb/k3p2R/b5P1/2pnP1K1/R1n1NPRr/1q1RN3/4p1rN/B2BbQ1B w - - 0 1 legal: proof: e4 b5 c4 f5 a4 d5 axb5 g5 cxd5 g4 e5 g3 Qc2 Bd7 Qe4 fxe4 hxg3 Nc6 g4 Nb8 g5 Bc8 Ke2 Kd7 Ke3 h5 Kf4 c5 d4 Kc7 g4 Kb6 b4 a5 g6 e3 d6 a4 g5 a3 d7 h4 g7 h3 d5 h2 d6 a2 g6 e2 Kg5 Ba6 Nc3 Kb7 b6 Bc4 b5 Rh3 Nd5 Raa3 Bb2 Nh6 g8B Na6 Bg2 Bg7 Nf3 Qe8 d8Q Rc3 d7 Bd3 Ne3 Qf8 Bb3 Ng4 Bd1 Qf7 Qf8 Qe8 d8R Bf5 Rd3 Bh8 Qf7 Kb8 b7 Ka7 b8N Qg8 Nd7 Nc7 Nf6 Bc8 Ne4 Rh4 Qf4 Nd5 b6+ Kb8 b7 Ka7 b8R Ba6 Rg1 h1Q Nh2 Rc1 Bf3 Qg2 Qf5 Qg3 Bh1 Rc3 Rb4 Qh3 Rb1 a1B Ra4 Rc4 Bd4 Bc3 f4 Be1 Ba1 Rc3 Rb8 Ra3 Rf8 Rb3 Rf7 Qg3 Rh7 Rb1 Nc2 Nge3+ Qg4 Qh3 Qg2 Nc4 Qf1 Qhe6 Rg4 Rb3 Rd2 Rg3 Ne3 Rg2 Rd4 Qb6 Rd3 Qb3
K1kB2b1/2rp1N2/n2n1R2/1b1r1P2/1P1p3N/R3p2q/Bn1P2N1/Rq1BQN2 w - - 0 1 illegal: No proof kernel
2rKRn2/1PN3N1/N1p1R3/1Q2R1rq/P1r3B1/2k1n1P1/2p2p1B/q2BbB1b w - - 0 1 illegal: No possible last move, all moves rejected
6rn/1Pp1k1p1/PQ3N2/pr1b2BR/nNq3B1/2b3Rq/1BPR2N1/1K2b1B1 w - - 0 1 illegal: No proof kernel
BQbr4/N4N1P/1bbp1N1q/n1RrnkPb/1N1p4/8/1P3pRR/3KB1B1 w - - 0 1 illegal: No proof kernel
r4nN1/r2pR1N1/2Q1n3/N1Pr2RP/1N4Bk/2ppq3/1PbB3r/2KBb1R1 w - - 0 1 illegal: No proof kernel
B3Nb2/1p3N1B/3pRq1n/BPn2Rn1/1r2r1q1/K3k2q/QPP2Rp1/N2R4 w - - 0 1 illegal: No proof kernel
4rR2/1np1pPb1/2K1Q3/B2BN1B1/RRN3q1/Rrn1P1k1/pN2P1q1/2r4q w - - 0 1 illegal: No proof kernel
nB1n3N/p2n1QRN/1Bp1nr1r/pn1PR3/B1K1R1RP/3b4/2P5/1qk1N3 w - - 0 1 illegal: No possible last move, all moves rejected
1N1K1qb1/2B4B/3pp3/p1nPP2b/Pk2n1Bn/1NN4b/R1n2R2/QR2rN2 w - - 0 3 legal: proof: c4 b5 g4 f5 b3 fxg4 b4 c5 bxc5 b4 Qc2 a6 Qa4 Bb7 Qd1 Bc8 h4 g5 Bb2 a5 Rh3 g3 Bc1 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Ra7 Nh3 Rb7 Ng1 Rb5 cxb5 Kf8 Rh5 Kf7 Rh1 Ke8 e4 h5 Ke2 g2 Kd3 g3 Kd4 e6 Ke5 Ke7 f4 b3 d4 b2 a4 h4 f5 h3 g6 h2 f6+ Ke8 Kd6 Ne7 b6 Ng8 f7+ Kf8 c6 Ba6 d5 Be2 c7 Na6 c8N Nf6 b7 Bh5 b8N Nc5 Nc3 b1B Nf3 g1N Be2 g2 Nd2 Nf3 Nb6 g1N Nf1 Ne1 Bf4 Ngf3 Ra2 Nc2 Nc4 Nh4 Bg4 Rh7 Rg1 h1B Ncd2 Bg2 Nb3 Bh3 Be5 Qe8 Kc7 Ke7 g7 Qf8 g8B Rg7 Qe1 Rg5 Bh7 Rf5 Nfd2 Rf1 Qc1 Re1 Nf1 Qh6 Kc8 Qg7 Bc7 Qf8+ Bd8+ Kd6 Qb2 Ke5 Qa1 d6 Kc7 Kf4 e5 Nfe4 Nh2 Ke3 Nf1+ Kd3 Kc8 Qg8 f8R Kc4 Bc7 Kb4 Kd8 Qg7 Rf2 Qe7+ Kc8 Qf8+ Bd8 Rd1 Bg8 Ne3 Nfd2 Ng5 Rgf1 Bbg6 Bh7 Nc2 Rg1 Be8 Bc7 Nge4 Kd8 Bhf7 Re1 Bg8 Nf1 Rc1 Ree2 Rd1 Rd2 Re1 Rd1 Nd4 Rc1 Nc2 Rb1 Bh5+
nkn1rR2/r4NrQ/1qpn1P1B/p2N1R2/1BPP4/B1N2p2/5n2/1Rb1K2B w - - 0 1 illegal: No proof kernel
2qR2Nq/knp3B1/1n1QP3/1pqqb2N/2b2BB1/1P2Np2/2B2PK1/1R3rR1 w - - 1 2 illegal: No possible last move, all moves rejected
qKN5/3Q1B1N/b3ppq1/r3B3/2P1NR2/kn1RPPp1/BR2rq1n/3q2N1 w - - 0 2 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 a5 b4 e6 Bh3 a4 Bf1 Bd6 Bb2 Bc7 Bc1 Ba5 bxa5 Ba6 Bh6 Bb7 Bc1 Bc8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 Kd6 g5 h4 d3 a6 d2 f3 f6 h6 a3 e3 g4 h7 g3 h5 a2 a7 Qe7+ Kc7 Ka4 h6 Qf8 b6 d5 b7 d4 Rh4 Qb4 Rf4 d3 Bb2 Bd7 Nc3+ Ka5 Ne4 Ka4 Be5 Nc6 b8R Qe7 Rb2 Ka3 c4 Rd8 a8B Nd4 Bc6 Bc8+ Kb8 Rd5 Be8 Nb3 Bf7 Qe8 Bh3 Rc5 Bf5 Ra5 Rc1 a1Q Rc3 Qa2 B5g6 Qa4 Bf5 Ne7 B5g6 Rd8 h8N Ng8 h7 Nh6 Bf5 Ng4 Ng6 Nh2 Ne7 Ba6+ Nc8 Qc6 h8N Qa8+ Kc7 Qb1 Ng6 Rh8 Nf8 Qc2 Qe1 d1Q Qd2 Qe1 Nh7 Qf2 Qd1 d2 Rd3 Qd5 Kb8 Qd8 Qe1 d1Q Qc3 Qg8 Qd4 Qg6 Qd7 Qcd2 Rc3 Qd5 Rd3 Qa8+ Kc7 Qd5 Nf8 Qc5+ Kb8 Qd5 Ned6 Ng4 Rdd2 Qg2 Bb1 Rh2 Nh7 Qgf1 Rd3 Re2 Ne4 Qf2 Ba2 Nh2 Nd2 Qc6 Ne4 Qa8+
3r2r1/bB1K1n2/B1BP1pQq/RbPp3P/N3R2B/2p2p2/4Rb1k/N1N2n2 w - - 0 1 illegal: No proof kernel
4B3/3N1Rn1/1P1p1r1q/1bRB1P1r/QBp1KRp1/bNp4n/kb5P/3R2N1 w - - 0 1 illegal: No proof kernel
4Q1KB/2n2bp1/1NP3N1/1R5P/2Nbp3/1q1PpkBR/1RBb2p1/2R1rn1r w - - 0 1 illegal: Other
3Qn1r1/5p1k/1BpP1nN1/rq2bpK1/rBP2R1P/R1R1N1B1/1R1N1pb1/8 w - - 0 1 illegal: Other
1q2r2b/B2QpR1B/1pb1PNrn/2NP1R2/1P1n1np1/k7/4p2N/NKR2B2 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 g4 h5 gxh5 a4 Qxa4+ Bd7 e5 Na6 Na3 Nb8 Qe4 fxe4 Nb5 Bh3 Na7 Bc8 Kd1 Kd7 Kc2 c5 h4 g5 a4 g4 d4 e3 b4 c4 f4 c3 e6+ Kd6 a5 e2 h6 Nc6 f5 Bd7 a6 Qa5 h5 Re8 h7 Qc5 h6 Nb8 f6 Qb6 f7 Qc5 Nc6 Rc8 a7 Nf6 a8B Bg7 f8N Qa5 Be3 Ne4 Rc1 Qc5 Rh5 Nd2 Nf3 Qb5 Rf5 Qa5 Nh2 Qd8 Na5 Bf6 Nb3 Nc6 Na1 Rg8 h8Q Ne5 h7 Ndf3 Kb1 Bc6 Nd7 Rg6 Qe8 Bh8 Nf6 Nf7 Bg1 Kc7 d6+ Kb6 d7 Nh6 Be3 Qc7 d8N Qb8 Qd7 Ka6 d5 Kb5 Ba7 b6 Nb7 Ka4 Nc5+ Ka3 Bb7 Rd8 Ba6 Nd4 Bd3 Re8 Nh5 Bg7 h8R Be5 Rhf8 Bf6 Rf7 Bh8 Re1 c2+ Kc1 Qc8 Rf4 Rg7 Bh7 Rg6 R4f5 Qa8 Nf6 Qb8 Kd2 c1N Rd1 Nf3+ Kc2 Nd4+ Kb1 Nd3 Rc1 Nf4
2B1RBk1/2P2rn1/3rNb2/1bpNpQ2/RpP5/3p2BK/4P1Nr/b1B1qR2 w - - 1 2 illegal: No possible last move, all moves rejected
1k6/3B2rb/pN1qp1n1/1nq1PP2/5N1p/qK2bpB1/1Q2RRPR/2N1N2B w - - 0 1 illegal: Other
qR1bq3/kN1rP1P1/2p1bB1p/Bpn4K/1N2q2P/p4NQ1/1NBn4/1R1R4 w - - 0 1 illegal: No proof kernel
1Rb1r1rk/3B4/7P/p1N1Rp2/1Nn1qPN1/q1bp3R/P1Kp1qBN/1Q1B4 w - - 1 2 illegal: No possible last move
1B1r4/N1R3p1/r1Kp2P1/1B1nP3/2RB1rpn/1b1N1b2/2pRP2Q/BkN1b3 w - - 0 1 illegal: No proof kernel
r1RK4/1nNppR2/Q1p5/1pb3rP/1k1PP1RB/1B2b1Nr/3N1b1n/1R1B4 w - - 0 2 legal: proof: c4 b5 g4 a5 b4 h5 bxa5 hxg4 c5 Ra6 Nf3 Ra7 Ng1 Ra8 f3 g5 Bb2 g3 Qb3 g4 Qd3 g2 Qd4 g3 Bc1 Bb7 Qa4 Bd5 Qb3 c6 Qd1 Qb6 cxb6 Bb3 Na3 Be6 Nb1 Bg4 fxg4 Bh6 Ba3 Bg7 Bc1 Bf8 h4 f5 e4 f4 Ke2 f3+ Ke3 f2 Kd4 Rh5 a4 Kd8 b7 Kc7 g5 Kd6 a6 Nh6 g6 Nf7 g7 Ne5 g8B Nf7 a7 Nh8 a5 Ng6 Bb3 Rh7 h5 Rh6 Rh4 Nh8 Ne2 g1B Rg4 g2 Ng3 Na6 b8R Ng6 Be2 Nc5 Rc8 Rb8 a8N Nd3 a6 Nc5 a7 Nh4 d3 Nb7 Bg5 Rh7 Nd2 Rg7 Qb1 Rg8 Qa2 Bh6 Rf1 Rg6 Bed1 Rg7 Qa1 Rg8 Nb6 Rg7 a8R Rg6 Ra5 Ra8 Nd5 Rg8 Ra2 Rg7 Rb2 Nf3+ Kc3 Kc5 Qa6 Rg8 Bh4 Bf4 Rb1 Rg5 Re1 f1R Re2 Bh2 Rf2 Rh1 Rf1 Bg1 Rf2 Kd6 Kb4 Rh3 Rf1 Nh2 Rf3 Nc5 Ka5 Bfe3 Kb6 Bgf2 Rf7 Rg6 Nf4 Rg5 Ne6 Nb7+ Nc5 Ke5 Kc7 Kd4 Ne6+ Kc3 d4 Kb4 Rb8 Bf4+ Kc8 Bd6 Nc7 Be3 Rb2 g1B Rb1 Nc5 Kd8 Bgf2 Rc8 Nb7+ Ke8 Na5 Kd8 Bc5 Rff4 Ba7 Rf8 Bc5 Rf7 Nb7+
NB2Qr2/bqn4B/Rr2Np2/P2B1P2/1B5R/pp4kP/rR2Krnp/1N6 w - - 0 1 illegal: No proof kernel
1R4R1/BN1pn2p/R1nPkB2/PNn5/pP1b4/2NQ4/r1p2N2/1rn1qB1K w - - 0 1 illegal: No proof kernel
N5nR/r3R1r1/2BB3K/qP2r1R1/1p1P2Rp/3p4/N1pP1B2/k1rNbn1Q w - - 0 1 illegal: No proof kernel
BQ4Nk/1b3rN1/R2Pp3/R1Bp1Pb1/1pqr1r1p/R1n1P2N/K2R3r/B7 w - - 0 1 illegal: No possible last move
2r1rk2/pn1R4/Pp2P3/1N3BqP/p1N1N3/1R2p1br/1Q3BBp/KN3b1R w - - 0 1 illegal: Other
1qK2Q2/pNpP3R/Rp6/PrB5/B1r1pPNn/Rr5N/Rb1pB1b1/4k3 w - - 0 1 illegal: No possible last move, all moves rejected
2Q5/np1r1pkN/B3rp1N/1nb2r1B/p5NK/1b3P1N/Pp1R1PB1/1RR5 w - - 0 2 illegal: Other
2n2KR1/Qn1brB1r/2pk3p/PR1nRr2/1b1B3P/2N3NB/2P1n3/1r1BqN2 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 Bc5 Nh3 Be7 Ng1 Bf8 Kd2 Ke7 Kd3 b5 Kd4 f5 Kc5 d5 g4 h6 h4 c6 a4 f4 e4 b3 a5 b2 g6 f3 g5 d4 g7 f2 e6 d3 g6 d2 e5 b4 Nf3 b3 Nh2 Bd7 Nc3 b1N Bh3 f1N Bb2 Nf6 g8N+ Ke8+ e7 Qc7 g7 Ne3 Re1 Nc4 Nf1 Nd5 Nf6+ Kf7 g8R Ra7 Qg4 d1R Nfe4 Ncb6 Neg3 Nc8 Qd4 Rh7 Qg1 Rb7 e6+ Kf6 Ra4 Qe5 Rb4 Qe2 Rb6 Ke5 Rb5 Rd3 Ba1 b2 Qf2 Rf3 Qg1 Bg7 e8B Rf5 e7 Bf8 Bh5 Qe4 Bd1 Rc7 Na4 Nbc3 Qf2 Ne2 Nc3 b1R Bb2 Nd6 e8B Qh1 Bf7 Nc8+ Kc4 Na6 Qa7 Kd6 Ba1 Nef4 Re5 Nc5 Bb2 Nb7 Ba1 Rf6 Kd4 Qg1+ Ke4 Ne2 Bb2 Re6 Kf5 Re7+ Kg6 Qf2 Bc1 Qe1 Be3 Re8 Bf2 Be7 Bd4 Rf8 Bfe6 Rf5 Bf7 Bg5 Be6 Re7 Bf7 Bc1 Kh7 Ba3 Kg7 Bb4 Kf8 Rh5 Bg6 Rh7 Bf7 Rf5 Rg7 Be8 Rg5 Re7 Rg8 Bd7
n1NbBN1R/2r2rRb/1nq1pn2/1kp3Q1/4b3/1P1K2RN/2PBP1N1/2B2n1b w - - 0 1 illegal: No possible last move, all moves rejected
rBB4q/qR4pr/QN3N2/2B1r1R1/nRp1p1nP/K1Pb2bn/4N1P1/k3N3 w - - 0 1 illegal: No proof kernel
qN3n1r/1bQr1PN1/1B1B2Kp/1p3NRp/8/1B2b1r1/qPR1R2P/nk3bR1 w - - 0 1 illegal: No proof kernel
1R5B/2q1QR1R/q2p1np1/2bkNq2/1KN1p2B/nbrP1NR1/P3B1P1/6rb w - - 0 1 illegal: No proof kernel
2KBB1N1/bB1P1NQ1/1rN2Rr1/1nn1np1q/b4P1p/2R2p1P/5k2/1nR2nR1 w - - 0 1 illegal: No proof kernel
Nb1BB3/1n1p3B/N1Q2p2/N2PR1b1/KR1r1Pbk/3n2RB/1P3rpr/1r1q4 w - - 0 1 illegal: No proof kernel
1nrN4/2b2RRR/1R3pP1/rn1b4/N2pQqB1/bpNP1P2/B2krBK1/4r3 w - - 0 1 illegal: No proof kernel
QnrR2n1/2r1NR1r/2p3b1/3q4/r2B2pK/1NPBP1P1/n1Rbp2R/3N1Bk1 w - - 0 1 illegal: No proof kernel
1R5N/NbbQBpkn/2P1n3/3p4/r1p1B2q/4bP1R/1RNP1B1K/rb2nB2 w - - 0 1 illegal: No proof kernel
RK1B4/rN5n/2pQp1kB/p1P3N1/P2q1Bb1/1brRRB1n/1N4P1/b5qb w - - 0 1 illegal: No proof kernel
2NK2n1/BR1N3p/Rp6/b3prk1/qb1R4/3Rrb2/2QnPP1P/bBB1q2N w - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 a5 bxa5 f5 gxf5 Ra7 Nf3 Ra6 Ng1 Ra8 a4 Kf7 d4 Kf6 Kd2 c5 Kc3 g5 a6 e6 a7 g4 d5 g3 a5 g2 a6 Nd7 d6 Nh6 Qc2 Qb6 Nf3 g1Q Bh3 Qg5 Rd1 Qg1 Ne5 Qb5 Rd3 Qg7 Nd2 Qa4 Rb1 Ng8 Nf1 Nb6 d7 Qg1 d8R Bd7 Rb2 Bc6 Ng3 Bf3 R8d4 Re8 a8R Qd1 a7 Qe1+ Rd2 Bd6 Nd7+ Kg5 f6 Re7 f7 Be5 f8B Rf7 Rb4 Rf5 Nh1 Bc7 Kb2 c3+ Kb1 c4 Bc5 Nd5 Rb2 Ba5 R2d3+ Ne3 Rb6 e5 Rb8 Bb4 a8N Ba5 Ra6 Bb4 Rd2 Nf1 Nab6 Ba5 Nc8 b6 Rb7 Bb4 Bd6 Ba5 Bb8 Bb4 Qb3 c2+ Kb2 Ba5 R2d3+ Nd2 Ba7 Bb4 Qa3 c3+ Ka2 Qb5 Qb3 Qa4+ Ba3 c1B Qc2 Bb2 Bg4 Rf4 Bf5 Ba1 Bg6 Re4 Bf5 Qc6 Bc1 Re3 Bg6 Ba5 Ka3 Qe4 Ka4 Qg4 Qd1 c2 Kb5 Qh4 Be4 Qg4 Kc6 Qh4 Ba3 c1B Kc7 Bcb2 Qa4 Bbc3 Bc1 Bcb4 Bf5 Qe4 Qc2 Qc6+ Kd8 Qa4 Kc7 Nh6 Bg6 Rf8 Be4 Rf5 Kd8 Bb2 Bd5 B2c3 Ba2 Ng8 Bb1 Ba1
2n1N2b/Bp2r1p1/BP5k/n1p2Kq1/R1P2b2/BN1Q1NP1/1R4n1/nbR1n1B1 w - - 0 1 illegal: Other
3r3N/N3Qpn1/p1n1qP2/p2Rn3/P1pB2BN/Rr3PK1/2b1rb1R/3Bk1B1 w - - 0 1 illegal: No proof kernel
3RN3/1p1bp2R/BPb1r1p1/N7/1qBNPBP1/Q1bN2nr/2R1p2b/n1K4k w - - 2 3 illegal: No proof kernel
b6r/2B4n/Rpp4k/KPPpNp1n/1RpNBbRR/N1B1r3/1P6/Q1bq4 w - - 0 1 illegal: Other
n2B2r1/1r4k1/5b1p/1p2q2b/Q4pN1/1N1nBPRP/2pn1p1P/BN1BRRK1 w - - 0 1 illegal: No possible last move
1bBn4/nBk2q2/2n2N2/1q3bBK/rB2Rn2/1PrB2NQ/1R2P2P/3n2Q1 w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 b4 Qc2 b3 axb3 Bd7 Qd1 Bc8 g4 h5 Nc3 hxg4 Nb1 e5 fxe5 a5 Kf2 a4 Ke1 a3 bxa3 Qd7 Kf2 Qe7 Ke1 Qd8 Kf2 Kd7 Kg3 f5 d4 g5 a4 c5 a5 c4 a6 c3 a7 f4+ Kf2 g3+ Kf3 c2 Kg4 g2 e6+ Kc7 Nc3 f3 Nh3 g1N Ne4 f2 Nf6 Qd7 Ra4 Nc6 Nf4 Qf7 Ba3 c1N N4h5 Nf3 Bh3 f1N Ng3 Nd3 Bb4 Nd8 Rg1 Nh4 d6+ Kb6 d5 Ne7 d7 Kc7 Qb1 Nec6 e7 Ng6 e8B Bd6 Ra2 Rf8 Rb2 Ne3+ Kh5 g4 Rg2 Nde5 Qg1 Nd1 Rf2 Nd4 Rf4 Nb5 Rd4 Nec6 Re4 Rb8 a8B Nba7 Bb7 Ra8 Nh1 g3 Bg4 g2 Ng3 Kb8 Be6 Bc7 d6 Rg8 Bc4 Rg7 Bd3 Rg8 Qf2 g1Q Qb6 Qf1 Qg1 Qc4 Bf7 Qa6 Be6 Qb5+ Bf5 Re8 Rg4 Re3 Re4 Nf7 d8B Be6 Bc2 Rc3 d7 Be5 Bh3 Bf5 Bd3 Qf2 Bde7 Kc7 Bg4 Nc8 Bh3 Ra4 Bg4 N8a7 Bh3 Kb6 d8Q+ Bc7 Qh8 Nfd8 Qh6 Bb8 Qe3+ Kc7 Qf3 Qd4 Bg4 Qdd5 Qff1 Qf7 Qh3 Be6+ Bf5 Bd5 Bfc8 Be6+ Bec5 Bf5 Be3 Qe5 Bc1 Qb5 Bg5 Nf4+
NBKbkB1n/r1R5/N4B2/4b1Q1/1P3Q2/2qBPr2/4qqP1/nBbbR3 w - - 0 1 legal: proof: f4 e5 c4 exf4 a3 d5 cxd5 b5 Nh3 b4 axb4 Nd7 Ng1 Nb8 h4 g5 hxg5 a5 b3 a4 Rh3 a3 Rh4 Qd7 Rh1 Qa4 bxa4 Bg7 Qc2 Bh6 Qd1 Bf8 Kf2 h5 Kf3 c5 Ke4 f5+ Ke5 f3 d4 c4 g6 f2 g7 a2 a5 c3 d6 f4 d7+ Ke7 d8B+ Kf7 d5 c2 d6 f3 a6 h4 d7 h3 a7 h2 Bf4 c1B e3 Bc5 Na3 Rh7 Nh3 Bb2+ Qd4 Ne7 Rc1 a1B Bd3 f1Q Nb5 f2 Nc7 Qe2 Na6 Bb6 Kd6 f1Q Rc7 Qff2 Re1 Ng6 Bf6 h1Q d8B+ Ke8 Ng5 Rh3 Bde7 Nd7 Ne6 Bc1 Bf8 Rf3 g8Q Nh8 Qg5 Nc5 Bh2 Ba5 Qdf4 Nb3 Kc6 Bd7+ Kb7 Be5 Bb1 Na1 Bd3 Rc8 a8B Ba4 Bg3 Rd8 Bh2 Rd4 Kc8 Bd1 Bae4 Rd7 Bb1 Rh7 Bed3 Qhf1 Ra7 Bd8 Nec7+ Kf7 Na8+ Ke8 Rc7 Qd2 Qgf5 Q1e2 Q5g5 Qc3 Rc6 Bb8 Qd4 Ba7 Bb8 Re7 Qdh4 Bd4 Qhf4 Ra7 Rc7 Be5
3b2QN/BR4PQ/qB1KPn2/b6R/5nr1/Pk4N1/n2qqNn1/3Nr1N1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 g5 bxa5 e6 h4 Bg7 hxg5 Nd7 g4 Bf8 Bg2 Nb8 Be4 Bd7 Bd3 Ba4 Bf5 Bc2 f3 Be4 fxe4 exf5 e5 Be7 Nh3 Bd6 Ng1 Bf8 Kf2 Kd7 Kg3 b5 Kf4 h5 e4 c5 d4 h4 e6+ Kd6 a3 c4 e7 c3 e8Q h3 g6 h2 a6 c2 g7 b4 a7 b3 g5 b2 g6 Nc6 Nd2 b1Q Nf1 Qb5 Qd3 Be7 Rb1 Qa6 Ng3 Nb4 Be3 Na2 Rb7 Nf6 g8N c1B g7 Bd2 Nh6 Ba5 Ng4 Rh4 Qg8 Rc8 a8N Rc1 Nb6 Re1 Qc2 Qd7 Bf2 Bd8 Na4 Qe2 Nc3 Qa6 Kg5 f4 Nd1 f3 Kf4 Qe2 Be3 f2 Qd3 f1N e5+ Ke7 d6+ Ke6 Bf2 Kd5 e6 Ne3 Qdh7 Kc4 Ke5 Ng2+ Be3 Nf4 Ngf2 Rg4 d5 Qc6 d7 Qa6 d6 Qd2 Rc7+ Kb3 Ra7 Ne4 Bb6 f5 Rb7 Nf6+ Be3+ Bdb6 d8B Ng2 d7 f4 Be7 f3 d8N Qae2 Nf7 Qa6 Bb4 Bd8 Nh8 Qae2 Nfe4 f2 Bb6 f1Q B4c5 Qa6 Bd4 Qf3 Kd6 Qfe2 Nh3 Rh4 Nef2 Rg4 Rf1 h1N Ng1 Qa8 Nfe4 Qa7 Rf5 Nf2 Rh5 Nd3 Nef2 Qa6 Bc5 Qc4 Ba7+ Qb5 Bcb6 Qa6 Rf5 Ndf4+ Rd5 Qc2 Rh5 Qcd2+
6kq/1KR1B1b1/2P3RB/1N3r1b/RNr3RP/2qR1bP1/8/1Qb1qnrQ w - - 0 1 legal: proof: d4 b5 f4 g5 a4 h5 axb5 c5 fxg5 d5 g3 h4 Bg2 h3 dxc5 hxg2 e3 Nc6 e4 d4 Nf3 Nb4 Ng1 Nd5 exd5 Rh6 Ra5 Rh7 Ra1 Rh8 Kd2 e5 Kd3 a5 Ke4 a4 h4 d3 c4 d2 b4 a3 d6 f5+ Kd5 Kf7 Kc6 a2 b6 f4 b5 e4 d7 f3 g6+ Kg7 b7 e3 b8R f2 b6 f1R b7 e2 Na3 e1Q Ne2 g1B Nd4 Rh7 Nac2 Nh6 Nb4 Kh8 g7+ Kg8 Nb5 Qg5 d8B Bf2 Be7 Be3 Kc7 Rg1 c6 Nf5 c5 Ra6 Ra8 Bd7 b8Q Rh5 Kb7 Ra4 c7 Be8 c8R Qf6 c6 Qc3 Rc7 Bf4 Qf3 d1B Rh2 Be2 Qh1 Bf3 Rd2 Ne3 Rd3 Nf1 Rb1 a1Q Be3 Ra2 Ra4 Rf5 Rbd1 Bf7 Rd6 Rd2 Rg6 Rd4 Rd3 Rc4 Rg4 Bh5 Bc1 Be5 Bh6 Bf4 Rg6 Bc1 Rg4 Kf7 g8R Qh8 R8g6 Bg7 Qa7 Qac3 Qd4 Qa1 Qb2 Kg8 Qb1 Qac3
K5N1/n2Pn3/N1q1BrB1/1P4B1/nB1r1QQB/Rqb2r2/q1R3P1/2r4k w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 f5 f4 b5 axb5 Be6 h3 Bf7 e4 Bh5 exf5 Bg4 hxg4 gxf4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 h5 b4 a5 f6 a4 f7 a3 d3 f3 b6 f2 g5 h4 d6 a2 d7 h3 b7 h2 g6 Ra4 b5 Qc8 d8B Bg7 f8B Nc6 b8Q Na7 Bg5 Rd4 Qg4 Rh3 Be2 f1R Na3 Rf6 Nc2 Rhf3 Nb4 e6 Bd1 Ne7 Ne2 Bh8 Rg1 h1Q g7 Qh3 g8B Qd7 Rc1 a1Q Na6 Qa2 Ng3 Qc8 Ne4 Qb7 Rc4 Qc6+ Kb4 Qg3 Bc2 Bg7 Ra1 Qh3 Qh4 Kf5 Qh5 e5 Bh4+ Kf4 Qg4+ Ke3 Be6 Ke2 Bb1 Kf1 Bg5 Kg1 Bc2+ Qb1+ Ka5 Kh1 Ra3 Qa2 Bb1 Bh8 Rc2 Qg3 Nc3 e4 Nd5 e3 Bh4 Rb4 d4 e2 Bg5 e1N Bh4 Rg6 Nf6 Nd3 d5 Nc5 d6 Rd4 d7 Na4 Ng8 Rgf6 Bg5 R3f4 Bh4 Qgb3 Bg5 Rf3 Bh4 Nec8 Bb4 Ne7 Bg5 Qe4 Bh4 c5 Qbf4 c4 Bg5 c3 Bh4 Nc5 Kb6 Na4+ Kc7 Qed5 Kb8 Qd6+ Ka8 Bg7 Rd2 c2 Bg5 c1R Bg6 Qc5 Rc2 Qc6+ Kb8 Rf8 Nf6 Rdd3 Bh4 Nd5 Ng8 Bc3 Bc5 Rd4 Bb4 Rf7 Bdf6 Ne7 Bfg5 Qb6+ Ka8 Rf6 Bef7 Qc5 Be6 Qc6+
N2b1n2/P1p2qb1/B2N1Nk1/2nN4/1K5r/1PQR2NB/Qr2P3/1n1Rn2n w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 gxh5 a5 d3 d6 Be3 b4 Bc5 dxc5 b3 a4 bxa4 b3 a5 b2 Kf2 Be6 Ke1 Bb3 cxb3 Qd7 Kd2 Qd6 Ke1 Qd8 Kd2 g5 Kc3 f5 a4 Kf7 h4 c4 d4 f4 e6+ Kg7 h6+ Kf6 h7 g4 e7 f3 e8B f2 d5 g3 a6 g2 h5 Qc8 a7 Qf5 d6 Qd5 a5 Nh6 a6 Bg7 d7 Ng8 d8N Qb7 h6 Bf8 Qd2 Bg7 Nf3 g1B Ne5 Kf5 Bb5 Qb6 Kb4 c3 Ne6 c2 Nc5 c1N Ne4 Nd7 Rh3 Qg6 Rd3 Nc5 Nd7 Qf7 Bh3+ Kg6 Nbc3 f1N Nd5 b1N Qa2 B1d4 Ng3 Ne7 N7f6 Be3 Bc4 Bg5 Bb5 Rad8 a8N Rd6 a7 Ra6 Qd2 Ra2 Ba6 Rb2 Qc3 Nc8 Qc2 Nb6 Qd2 Nbd7 Qc2 Re8 h8Q Nf8 h7 Bh4 Qc3 Re5 Qc2 Rh5 Qc3 Nfd7 Qe8 Nf8 Qa4 Bg5 Qa2 Rh4+ Nge4 Ng3 h8N+ Kh6 Qa5 Nh1 Qa2 Qe6 Nf7+ Kg6 Nd6 Qd7 Rd4 Qf7 Ng3 N1d3+ Kb5 Nd2 Rd1 Ne1 Rd3 Nb1 Ka5 Rh8 Kb4 Rh5 Nfe8 Bd8 Nef6 Rh4+
1b1Q2q1/b3rN2/2P2q1R/1nb3pr/R1B5/Q1rBPB2/4P1K1/N1Bk1B1q w - - 0 1 illegal: No proof kernel
1n1nrBn1/rPkN1P2/3nqn2/4p3/QQ3R1N/1Q1RQr1Q/5q1P/1K5B w - - 0 1 legal: proof: e4 f5 c4 b5 a4 d5 cxd5 g6 axb5 h5 g4 hxg4 e5 Ba6 Qe2 Bb7 Qd1 Bc8 f3 g3 Bc4 g2 Ra5 g5 Ra6 g4 Na3 g3 Ra4 Bd7 Bf1 Bg7 Nb1 Bf6 exf6 Be6 Ra1 Bf7 Ne2 Bh5 Ng1 Bg4 fxg4 Qd7 Be2 Qd6 Bf1 Qd8 d4 Kd7 Kd2 c5 Kc2 e5 b4 a5 d6 c4 g5 a4 g6 f4 b6 f3 g7 c3 b7 f2 b5 a3 b6 a2 d5 Rh3 Bh6 Qe8 Nf3 g1N Na3 g2 Nc4 Ra3 Nh4 Kd8 d7 Ne7 g8Q Ne2 Bf8 g1R Bg2 f1N f7 Ra8 Qg5 Rf3 Qe3 Nf4 Rb1 a1Q Rb3 Qa5 Kb1 Ne6 Ra3 Ra7 Qa4 Ng8 Rb3 Nc6 Rb4 Qa6 b8Q+ Qc8 Qd6 Nb8 b7 Qc5 Nb6 Qd4 Qe7+ Kc7 Rc4+ Qc5 Rf4 Nd8 Qb3 Qd4 Qeb4 Qe6 Q4a4 Qd2 Qab4 Qf2 d6+ Kc6 Bh3 Rg6 Bg2 Ng3 Rd1 Nh5 Rd3 Nhf6 Bh1 c2+ Kb2 c1N+ Kb1 Qc4 Q3a4+ Qb5 Qab3 Ne2 Q3a4 Ng3 Qab3 Ne6 d8Q Nge4 d7 Nd6 Qe8 Nd8 Qee6 Qc4 Qh3 Rh6 Q4a4+ Kc7 Qbb4 Ne6 Qab3 Rh8 d8Q+ Kc6 Qe7 Nd8 Qe8+ Kc7 Qea4 Qe6 Nd7 Ne7 Bh6 Re8 Bf8 Neg8
1Q2rN2/RK1q4/n2BQP2/2pb2Pk/1Q3n1N/5P1q/r3QpB1/qn1R1Q2 w - - 0 1 illegal: No possible last move
B2n2QK/3Pp3/Bq1BBpP1/2R2b1b/k1q1Pb2/1RQ1q3/5r2/B1rN3N w - - 0 1 legal: proof: c4 a5 b4 g5 a4 b5 axb5 d5 cxd5 Nh6 f4 Ng8 fxg5 Qd7 Ra3 Qd6 Ra1 Qd8 h4 axb4 g4 Qd7 g6 Ra6 h5 Ra8 g5 Nc6 g7 Ne5 Rh3 Ng6 hxg6 Qd6 Rh1 Qd8 Kf2 Kd7 Kg3 c5 Kf4 h5 Kf5 f6 e4 b3 d4 c4 d6 c3 d5 c2 b6 h4 b7 h3 b8B b2 Qe1 h2 Nh3 Qc7 Qc3 Qd8 Ra3 Qc7 Rb3 Qb6 Ba6 Bb7 Nf2 Kd8 d7 Bc8 Bd6 Qe3 Rg1 Ra7 Nh1 Rc7 Ke6 Nh6 g8B Rc4 g7 Nf7 g6 Rc5 Bd2 c1Q Rg5 Rh3 Be1 Rf3 Beg3 Qf1 Bge5 Qc4 Rh5 Rf2 Rf5 Nh8 Bf7 Rc7 g8B Bh6 Be8 Nf7 Bd4 Ne5 Rh5 Nc6 Kf7 Bf4 Kg7 Qc1 Kh8 Qe3 Nd2 b1Q Be6 Qg1 B4e5 Qb6 Nf1 Qg3 Ne3 Qg5 Ng3 h1B Nd1 Bf3 Nh1 Be2 Qe3 Qg3 Ba1 Bg4 Qd3 Qge3 Qc3 Bf3 Rf5 Bh5 Be5 Na7 B6f7 Rb2 Qe1 Bh2 Bg8 Qe6 Bef7 Qb4 Bg3 Rc1 Qc3 Bb7 Bb8 Ba8 Qe5 Qc4 Qc3 Q6b6 Bg3 Re2 Re5 Kc7 d6+ Kc6 d8Q Rf2 Qf8 Bb7 Bd5+ Kc5 Bgf7 Nc6 Qg8 Bc8 Rg5 Be6 d7 Nd8 Bc7 Bh3 Bfe6 Bf4 Re5 Bf5 Bb8 Qb5 Ba8+ Kb6 Bd6 Qbb4 Bad5 Ka5 Ba8+ Ka4 Rc5 Qb6
3Bk3/N1Pp1b1N/3R2q1/1NbN2br/2qP1r1R/1B1pP3/3Q4/1nK2QrN w - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 a4 e5 axb5 e4 Nd2 e3 fxe3 Nc6 Nb1 cxd4 Bd2 d3 Bc1 Nd4 exd4 Qb6 Kf2 Qf6+ Ke1 Qd8 Kd2 f5 c4 a5 b4 g5 h4 f4 b6 g4 b7 g3 b8N f3 h6 a4 c5 f2 h5 g2 h7 a3 b5 a2 c6 Bc5 h6 Ra7 c7 Bb4+ Nc3 Ba3 b6 Qe7 b7 Ra8 Nb5 Bd6 Na6 Bc5 b8N Qf6 Nh3 g1B Nb4 Ra4 Nd5 Kf8 Nc6 Bb7 Nca7 Ra5 Bg2 f1R Nf2 Ra3 Rh4 Rc3 Nh1 Rf3 Qf1 Ke8 e3 Bf2 Ba3 Qg6 Kd1 Rb3 Kc1 Ne7 Bh3 Rb4 Be6 Rf4 Rb1 Rg8 h8N a1Q h7 Qa2 Nf7 Bg3 h8Q Qc4+ Kd2 Ra4 Ng5 Ra5 Qh5 Ba8 Qhe2 Bc6 Nh7 Bb7 Ndc3 Bd5 Kc1 Rg7 Bg8 Bf7 Qd2 Nd5 Rb2 Nf6 Rc2 Ne4 Nd5 Nc3 Rb2 Nb1+ Rc2 Bb6 Be7 Bc5 Bd8 Be1 Qh2 Beb4 Qd2 Be7 Rc3 Bg5 Rc2 Qb3 Rc6 Bc5 Rd6 Qc4+ Qc2 Ra2 Qc3 Rh2 Qc2 Qb3 Qd2 Qb4 Rg4 Rh5 Rh4 Qc4+ Qc3 Qb3 Ng3 Qe6 Ra6 Bge7 Nb4 Bg6 Rd6 Qe4 Bc4 Bf7 Nh1 Rg1 Qd2 Bg5 Nd5 Qb4 Ba2 Qg6 Bb3 Qc4+
7K/1kp4Q/nrp1RR2/2n1rN2/1n1RB2q/P6P/PbRq2Q1/NBRr4 w - - 0 1 illegal: Other
RB6/P1qBp3/6BK/PrB1Pq1Q/B5b1/Qbr4R/q2pr1k1/2N2nN1 w - - 0 1 legal: proof: g4 b5 d4 g5 h4 c5 hxg5 cxd4 b4 a5 bxa5 b4 f4 b3 g6 Nc6 g5 Rb8 f5 Bb7 f6 Nb4 c3 Ra8 cxb4 Bg7 fxg7 Bc8 Kf2 d5 Kf3 Kd7 Kg4 Kd6+ Kh5 Ke5 a4 Ke4 a6 f5 e3 d3 a7 f4 a5 d2 b5 f3 b6 f2 b7 b2 b8B d4 Ra3 d3 Bh3 f1Q Bd7 Nf6+ Kh6 Nd5 g8B Qf5 g7 Qc7 Qh5 d1B g6 d2 Bf7 Bb3 Rh3 Rd8 g8B Rf8 Ba4 Be6 g7 Rc8 Ra1 Bd7 Bg6 Be6 Na3 b1Q Nc4 Qa2 Ba3 Qb7 Bc7 Bd1 Rh2 Be2 Nb2 Qb8 Qh3 Qab3 Rc1 Bg4 Nd3 Q8b6 Rb1 Rab8 Nc1 Qc6 Rb2 Rb6 Rc2 Rb5 B8f7 Qd6 g8Q Qa2 Qh4 Qb6 Kg7 h5 Be8 Qb8 Qg5 h4 Qh5 h3 Kh6 Qb7 Rh1 h2 Bd7 Qb8 Rc6 Qb6 Bg3 Qd8 Rb6 Rc3 Rb8 Qc8 Ra8 Qb7 Nge2 Kf3 e4 Ne3 Bc5 Nf1 Bb8 Qc7 e5 Bd5 Ng1+ Kg3 Qe6 Bc4 Qd6 Bb3 Bd4 Re3 Nf3 Re2 Qa3 Kg2 Bc5 Ne3 Rd1 h1R Re1 Rh2 Rh1 Rh3 Ng1 Rg3 Rh4 Nf1 Rh3 Rc3
n3N2R/1RbR2R1/2QPN1r1/BR2KP1q/bP1b4/1p2p1Qr/1b1b4/2Bk4 w - - 0 1 illegal: No possible last move, all moves rejected
7b/R2n2NQ/1Q1B1b1P/P2N1Pq1/k1prn1Np/n1B2N1b/6Nn/5K1R w - - 0 1 illegal: No possible last move
b7/2Q1RnQN/1p3rqn/k7/1NPb3p/1KR1N1n1/1B3PPn/1NbB1N2 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 fxg6 Ra6 b4 axb4 h4 Rf6 Be3 Rf5 Bc1 Rg5 hxg5 Bg7 Qd3 Bh6 Qd1 Bf8 Kd2 d5 a4 Kd7 c4 Kc7 Kc2 e5 g7 h5 c6 Kb6 c7 d4 g6 b3+ Kb2 e4 Qg4 h4 Be2 e3 Bf3 d3 Ra3 d2 Bd1 e2 Nf3 e1B Nh2 Bc5 Nf1 Nh6 g8N Nc6 g7 Qg5 Ne7 Qg6 g8N Ne5 Nd5+ Ka5 Nb4 b6 Nf6 Nef7 Nh7 Bb7 c8Q Rf8 Qc7 Ba8 Rh3 Bd4+ Rc3 Bf6 Ra2 Bd4 Ka3 b2 Kb3 Qe6 Qg7 Qg6 Bh5 d1N Ra3 Ne3 Bd1 Nef5 Re3 N5d6 Re7 Nb7 Nd5 Nbd6 Nde3 Ka6 a5 Ne4 Kc2 Bd2 Rc3 Ng3+ Kb3 Bb7 Na3 b1N Bb2 Ka7 a6 Bc1 Kb4 Nd2 Nb1 Nf3 Kb3 Ka8 a7 Nh2 Qf6 Nh8 Qg7 Rf6 Rd3 Bf3 Rc3 N8f7 Nd5 Bg4 Nb4 Bd7 Qd6 Kb7 a8N Ka7 Nc7 Bc6 Ncd5+ Bb7 Nc6+ Ka6 Nde3 Ba8 Nb4+ Ka5 Qc6 Nf3 Qc7 Nh2
3qq3/N3B2p/1RQ2nR1/n3N1Q1/3Nn1bN/B1rPbn2/4PPpk/4NK2 w - - 0 1 legal: proof: g4 b5 d4 f5 h4 e5 dxe5 a5 a4 d5 axb5 d4 h5 g6 Bh3 d3 Kf1 d2 hxg6 Ra6 g5 Rd6 Bg4 Rd3 cxd3 fxg4 b4 Ke7 e6 Kd6 e7 Ke5 e8Q+ Kf4 g7 c5 g6 a4 b6 c4 b7 a3 b5 g3 b6 a2 Na3 c3 Qc6 c2 Rb1 a1Q Nc4 Na6 b8N Nh6 g8N Qg7 b7 Qf7 g7 Nc5 Ne5 Bg4 Ne7 Ng8 Nf5 Qfe8 Ngf3 Nf6 g8N Ne6 Ngh6 Bc5 Ne1 Nd4 Rb6 Nf3 Nh4 Be3 Ba3 c1N N6f5 Nb3 Qdc1 d1N Nd4 Na5 Ra6 Nc3 Nbd7 Qe6 b8B Qc7 Qb7 Rc8 Nec6 Qe8 Nhg2+ Kg5 Rb6 Qcd8 Na7 Rc5 Rh6 Bf4 Qc6 Nce4 Bd6 Rc3 Be7 Bd2 Rg6+ Kh5 Nf4+ Kh4 Nfg2+ Kh3 Nh4 Kh2 Ne5 Bg5 Qf4 Bh6 Qf5 Be3 Qg5 g2+
n3N1R1/2qP3R/BQ1bq1p1/2QP1B2/q2BN3/1p3n2/4KB1P/rkn1nB2 w - - 0 1 legal: proof: e4 h5 g4 e5 gxh5 Ke7 d4 d5 c4 b5 b4 a6 c5 Bg4 c6 Kf6 f3 Bf5 exd5 a5 d6 e4 d5 e3 Be2 Bd7 cxd7 axb4 Bc4 Ra6 Bf1 Rc6 Be2 Rc4 Bf1 Re4 fxe4 Qc8 Bd3 Qe8 Bf1 Qd8 a4 Ke5 h6 c5 h7 f5 a5 g6 a6 f4 a7 c4 a8B e2 Kd2 Kd4 e5 e1N e6 f3 e7 f2 e8B b3 Bb7 b2 Nc3 b1Q Ne4 b4 Nf6 b3 Ra7 Qe4 Nh3 Qc7 d8Q Na6 Qc2 Ne7 Bd7 Qe6 Ne8 Nf5 Ng5 Nh4 Ne4 c3+ Ke2 Nhf3 Be3+ Kc4 Qc1 c2 Bd4 Rg8 h8B Kb4 Qe3 Ka3 Bhe5 Ka2 Bg3 Kb1 Qe7 Nc5 Ba6 Na4 Qd8 Be7 Qb8 Rg7 Qb6 Bf8 Qc5 Nb6 Rb7 Na8 Qb6 Qe5 Bf5 Qe6 d7 Rg8 Rb8 Bd6 Qc3 Rh8 Qcc5 Rh4 Rg1 Rg4 Bh4 Rg5 Rg3 c1N+ Kd1 Rg4 Rh3 Rg1 Bg3 Rh1 Rh7 Rg1 B1h3 f1Q Bgf2 Qb5 Bf1 Qa4 Rd8 Ncd3 Ke2 Nc1+ Ke3 Ncd3 B1h3 Nc2+ Ke2 Ka2 Ng7 Ra1 Rg8 Kb1 Bf1 Nce1 Ne8 Nc1+
R4QB1/2r1KQ1r/b3BPBN/q2B2Nb/1b2q2P/4p3/R1P1p1k1/2b1q1B1 w - - 0 1 legal: proof: d4 f5 b4 g5 e4 fxe4 g3 a5 bxa5 h5 Bb5 c5 dxc5 h4 Ba6 g4 Bf1 Nh6 Bf4 Nf5 Bd2 h3 Bc1 Nh4 gxh4 g3 Kd2 g2 Ba3 Nc6 Ke1 Nd4 Bb2 Ne2 Bc1 Ng3 hxg3 Qb6 Qd2 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kd5 e5 a4 b5 f4 h2 a6 e3 g4+ Kg6 a7 e4 g5 Kf5 g6 d6 c6 b4 g7 e2 g8B Kg4 c7 Kg3 f5 b3 f6 b2 a5 Bf5 c8B Kf2 a6 Qe8 Nf3 g1B Nc3 b1Q Ra2 Qb4 Nb5 Qa5 Ng5 Rh7 Bce6 Rc8 a8Q Qe7 a7 Rc5+ Kd4 d5 Ke5 Qe8 Nd6 d4+ Qd5 d3 a8B Bg4 Ndf7 Bh5 Nh6 d2 Bh3 Qg6 Bhf5 Kg2 Bb7 Qe8 Bg6 Be3 Qe1 d1Q Qb4 Qe1 Bb2 Rd7 Bd4 Bc1 Bg1 Rh7 Ba8 Qc6 Qb8 Be7 Qf8 Qb7 Bd7 Qbb4 Ke6 Qb7 Qc4 e3 Bc8 Qf3 Bd5 Qe4+ Kd7 Rc6 Ke8 Bb4+ Bce6 Rc5 Qb3 Bbd2 Qb7 Bb4 Qbf7 Qa7 Bf2 Qa5 Rf1 h1B Bg1 Kg3 Rf5 B1f3 Ke7 Kg2 Bc4 Bfg4 Rd5 Bh3 Rd8 Bf5 Ra8 Bfg4 Kd6 Bf5 Bed5 Bc8 Be6 Bb7 Bcd5 Ba6 Ke7 Rc7+
3QbR1K/N4bQp/2B3n1/1n3BPb/kBBR3B/P2pb1q1/bbNP4/8 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 b5 h4 g5 hxg5 d5 Nf3 Ra6 Ng1 Rd6 e4 d4 fxe5 Rd5 exd5 axb4 Qg4 b3 Qh5 b4 Qd1 Nf6 Qg4 Rg8 Qe2 Rg6 Qd1 Ng8 Na3 Rb6 Nb1 Rb5 cxb5 Qf6 Nh3 Qd6 Ng1 Qd8 Kf2 Kd7 Kg3 c5 Kh4 f5 Kh5 d3 g4 b2 d6 f4 g6 c4 e6+ Ke8 g5 b3 e7 Kd7 e8B+ Ke6 g7 Kd5 b6 Kc5 d7 Kb5 b7 f3 Nc3+ Ka5 Nb5 b1B Bh3 f2 Na7 f1B Ba3 c3 Bf5 c2 Bb4+ Ka4 a3 c1B Ne2 Nc6 b8B Ba2 Rh4 Qc7 d8Q Ne7 Kh6 Bd7 Nd4 Qg3 Nc2 b2 Rd4 b1B Qh5 Bh3 Qf7 Ng6 Qff6 Be7 g8B Bg4 Kg7 Bc5 Bc4 Bh5 Kg8 Bb6 Qg7 Bb2 Bf4 Bc5 Be3 Bb3 Bf2 B1a2 Rf1 Bb6 Rg4 Be3 Rd4 Nce5 Be1 Nf7 Rf2 Bb5 Bc6 Nd6 Rff4 Qg2 Bh4 Qg3 Bg2 Be8 Bc6+ Nb5 Rf1 Ne7+ Kh8 Bhf7 Ne1 Bd1 Nc2 Bdh5 Bfe6 Bfg6 Rf8 Bgf7 Bf5 Ng6+
Rq2B1r1/Pp3NPQ/1Q2P3/3Rn2K/bnb1Np2/q4p2/1r6/BB3BBk w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 bxa5 c5 d4 g5 h4 d5 cxd5 c4 hxg5 Bc5 dxc5 Kd7 Nd2 Ke7 Nb1 Ke8 Kf2 Ke7 Kf3 f5 e4 h5 a4 h4 g4 h3 a6 c3 g6 Kf6 d6 Kg5 d7 Kh4 a5 c2 c6 h2 e5 Qe7 d8B Qf6 g7 Qg5 a7 Bd7 a6 Rh7 c7 Rh6 c8B Qf6 g5 Rh7 g6 Ne7 g8B Nec6 g7 Qe7 e6 Rh5 Nc3 Be8 Qd4 Bd7 Qb6 Qf6 Be3 c1Q Nh3 Na5 Bg1 Qa3 Bh7 Ba4 Ng5 Qe5 Bd7 Nac6 Be8 Nb4 Bf6 Nd7 Nf7+ Rg5 Rd1 Qb8 Be5 Rg6 Rd5 Rg2 Bf6+ Kh3 Bfd4 Qa1 Ne4 Qc1 Ba1 Qa3+ Bd3 Rb2 Bg6 Qd6 Bh7 Rb8 a8Q Rd8 Qc8 Qb8 Qc2 Rc8 a7 Ne5+ Kf2 f3 Ke3 Rd8 Kf4 Rc8 Kg5 f4 Qb1 Kg2 Kh5 Rd8 Bc5 Rc8 Rc1 h1B Bf1+ Kh2 Rc4 Bg2 Bg1+ Kh1 Qc2 Rd8 Rc8 Qc7 Ra8 Qb8 Qcc5 Rc8 Qf8 Rd8 Qh8 Bh3 Bf5 Bg2 Qh7 Bh3 Bd3 Bf1 Bh3 Be2 Bb1 Bc4 Bf1 Rc8 Bb5 Rf8 Be8 Rg8
b4R1B/q1r1k2p/BPRp2n1/1pN4q/Nn4Q1/1nN4N/bP3P2/4NK1Q w - - 0 1 legal: proof: h4 b5 e4 g5 hxg5 f5 exf5 c5 a4 a6 c4 Ra7 d4 Bg7 a5 cxd4 c5 Be5 c6 Rb7 cxb7 Bc7 Qe2 Bb6 axb6 a5 Qd2 Na6 Qd1 Nb8 g4 e5 g6 a4 f6 e4 g7 a3 g5 d3 g6 a2 f7+ Ke7 f8N d6 Bg5+ Nf6 g8Q e3 g7 e2 Nd7 Nc6 b8N Qc7 Na3 Qd8 Bg2 Nb4 Nc5 Bd7 Bb7 Be8 Na4 Bg6 Nh3 Qc8 Nd7 Qa8 Nc2 Qa7 Ndc5 Be4 Ba6 Ba8 Qc8 Rg8 Qg4 Rc8 Bh4 Rc7 g8N+ Kf7 Qc1 Nh5 Nf6 Nf4 Nd5 Ng6 Bf6 Kf8 Qh6+ Kf7 Rc1 a1N Ndc3 Nb3 Bh8 Ke7 Rg1 Na1 Kd2 Nb3+ Ke3 d2 Ne1 d1B Rg3 Kf7 Rf3+ Ke7 Rf8 Bc2 Qhh5 Bb1 Qd5 Ba2 Qh1 Nc6 Kf3 Nb4+ Kg3 Rb7 Kg2 Rc7+ Nf3 e1Q Rc2 Qe5 Kf1 Qf6 Ne1 Qe5 N5e4 Nc6 Nb1 Ncd4 Rc6 Qh5 Nec5 Nc2 Nbc3 Nb4
1nb2Nq1/QP3pKN/4pN2/4Pqp1/4p1bR/bbk5/Q1P5/NBB2R1N w - - 0 1 illegal: No possible last move
4rB2/1Kn2qnb/6QR/1nRQ2Pq/kB2bB1P/5n2/N3Pb2/NB1r1nB1 w - - 0 1 illegal: No proof kernel
2k2q2/n2R3B/2P1NB2/r1nN1nqP/Nb4P1/1qq4Q/R4Nqr/KN2Q2b w - - 0 1 illegal: No proof kernel
3N1B1n/n1rB4/PR1Q1Bk1/1q1P4/2n3bb/2B3r1/BPN1Q3/nn2KqqR w - - 0 1 illegal: No possible last move, all moves rejected
2b2kB1/QP4nB/Pnnb3q/1KNB2nR/N2q1rn1/4B1r1/3R2PB/5b1Q w - - 0 1 illegal: No proof kernel
1b1Bb2Q/K3B3/1RPB1rP1/n2q1B1r/1NPb3R/krB1Q3/q3Nq2/1b3n2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Ke2 e5 Ke3 Ke7 g4 d5 c4 a5 f4 h5 b4 d4+ Kd3 e4+ Ke2 a4 g5 e3 Kd3 e2 g6 e1Q b6 a3 b5 a2 b7 h3 b6 h2 Qc2 h4 Qb3 h3 Be3 Qd5 Qc3 Nf6 Bd2 Nh5 Ne2 Nc6 b8B Ra3 b7 Ng3 Bc7 Bd7 b8B Rb3 Na3 Qf2 Rb1 a1B Nc2 Be8 Nb4 Na5 c6 Rh5 f6+ Ke6 f7 Bd6 Bd8 Bc7 f5+ Kd6 f6 Kc5 Bg2 Nf1 Be4 Bb2 Bf5 Ba1 Rg1 h1R Rg4 h2 Rh4 Rg1 Rb2 h1Q Rb1 Qhh2 f8Q+ Qdd6 Qh8 Qd5 f7 Rgg5 Bg4 Rf5 Rb2 Rf6 f8B+ Qdd6 Ke4 d3 Rb1 Bb2 Bfe7 Ba1 Qc1 Bd4 Bc3 d2 Bf5 d1B Qg5 Qhf4+ Kd3 Qd2+ Ke4 Qa2 Qe3 Kb6 Rb2 Qd5+ Kd3 Nb7 Rb1 Ka5 Rb2 Ka4 Rb1 Bce5 Bbd6 Na5 Rb2 Ka3 Rb1 Qe6 Ke4 Qd7 Kd5 Bc2 Rb2 Bb6 Rb1 Bc7 Kc5 Qe6 Kb5 Qd5+ Ka6 Bd3 Rd1 Bb1 Ka7 Qdf3 Rd5 Qh1 Rc5 Qd5 Rb5 Bd4+ Rb6 Bb8+
1n1r1NQ1/r4R1B/PN5R/1qb2b1b/3P1Bn1/NqN1n1NQ/nk1P3K/4q3 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 d5 c3 f5 exf5 d4 cxd4 Ra7 Bg2 Ra4 Bf1 Ra8 a4 Kf7 h4 c5 f4 g5 Kf2 e5 Kg2 b5 a5 c4 f6 Ke6 f5+ Kd5 h6 e4 f7 c3 h5 b3 h7 b2 a6 b4 f6 b3 h6 c2 Rh4 g4 Qf3 g3 Ra3 Qd7 Bd3 Qb5 Ne2 Bc5 f8N Ra7 f7 Bg4 Nd7 Nf6 f8N Bh5 Qf1 Rg8 h8N e3 h7 Ng4 Nhg6 Rh8 Kh3 g2 Nge5 g1Q Ng3 e2 Nc4 e1N Ra5 Qe3 Nca3 Ng2 Qf7+ Qe6 Qg8 N2e3 Bg6 Qe2 Rb5 Qe1 Rb6 Qf7 Rf6 Qe6 Rf7 Qe5 Nb5 Kc4 N1c3 b1Q Ba3 b2 Nb6+ Kb3 Bb4 c1N Na3 Na2 Ba5 Nh6 Kh2 Qbd1 Be4 b1B Bd3 Kb2 Bb4 Be7 Bd6 Qb5 Bf4 Bc5 Qg7 Bf3 Ng6 Rd8 h8Q Ba8 Nf8 Bf3 Qgg8 Qdb3 Qhh7 Be2 Qf5 Bd1 Qh3 Be2 Bh7 Bf5 Rg4 Bf3 Rg6 Bh5 Rff6 Nf7 Rh6 Ne5 Rf7 N5g4+
Bn2qBn1/Q5bb/P5BP/B2PB3/b6k/Rq5r/b1n3rR/K1NN1qQ1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Ke7 e4 b5 d4 g5 Kd2 f5 Kc2 c5 Kb2 b3 h4 b4 h6 g4 h7 c4 h5 f4 d6+ Kf7 e6+ Kf6 a5 Kg5 d7 g3 e5 g2 a6 Bg7 e7 Qe8 d8B Bd7 e6 Ba4 Ra3 c3+ Ka1 c2 Ne2 g1Q Nbc3 Qe3 Rh2 f3 Bg2 f2 Qg1 f1N Nd1 Ra7 Ba5 b2+ Ka2 b1B+ Ka1 b3 Ba8+ Ng3 Bcd2 c1Q Bdb4 Rc7 Bd6 Rc2 Bc5 Rb2 d5 Qc4 Nc1 Qf1 Bd6 Rg2+ Be5 Nf5 h6 Nd4 Bd6 Ba2 Bdb4 Qh3 Bd6 Kh4 Bdb4 Qef7 e8B Qd7 Bg6 Qe8 Rh1 Rh2 Bf8 Qhd3 e7 Rh3 Rh2 Qc4 Bc3 Nc2+ Kb2 Qec8 e8Q Qd8 Qd7 Qe8 Qda7 Qb4 Ne2 Qc4 Kc1 Qcb5 Ba5 b2+ Kd2 Bf6 Bf5 Qb3 Nc1 Ne7 Be4 Rg8 h8B Rg4 Bg6 Ng8 Bhg7 Be7 Be5 Bf6 Rf2 Bg7 Rh2 Qb6 Nd3 Rg2+ Kc3 Ne3 Nc1 b1B Bh5 Bh7 Bf7 Bb5 Bg6 Nc2+ Kb2 Qe3 Bd2 Ba4 Ba5 Nb4+ Ka1 Qef3 Qab6 Qb3 Qa7 Nc2+
rN6/1BPr1PRR/n2B2P1/2Q1B2B/5bBN/1qb4b/2qr2Q1/knb2n1K w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 c4 Kf7 b4 Ke6 g4 Ke5 b6 h5 g6 a5 b7 d5 c6 e3 g5 h4 c7 e2 c5 a4 c6 d4 g7 h3 g6 h2 b5 a3 b6 a2 Qd2 d3 f4+ Kd4 Kf2 e1Q+ Kg2 e5 f5 e4 f6 e3 Be2 Ba3 Nc3 Na6 b8Q Ne7 g8B Rh7 b7 Qd1 Nd5 Qb3 Bh5 e2 Nb6 e1B Nd7 Nd5 Be6 Nc3 Bb2 Bg3 Beg4 Bf4 Nf3+ Kc4 Rad1 a1B Qa7 Nb1 Be5 Bc3 b8B Bc1 Nh4 Rf7 Qa2 d2 Qc5+ Kd3 Rde1 d1R Bd6 Qg8 Re7 Qe8 Qaf2 Rd2 Be5 Rh7 Rg7 Kc2 Qe2 Kb2 f7 Rh8 Qef2 Ka1 Bd6 Qe2 Be5 Bb7 c8B Rd8 Bbd6 Qed1 Nb8 Rd7 Qe2 Qdc2 Qef2 Rd5 c7 Rd2+ Bf3 Be4 Bb7 Bf5 Bfg4 Be6 Rg1 Bf5 Kh1 Be6 Rg3 Bf5 Rh3 Be6 Kg2 h1N Kg1 Ng3 Qg2 Nf1 Kh1 Bf5 Bd1 Kb2 Bhe2 Qd5 Nf3 Rd3 Rhh7 Rd2 Nh4 Bh3 Bh5 Qdb3 Bdg4 Ka1
BBn2bQ1/1Prn2K1/3P1RPn/2q3Nb/Nk2br2/RB1q4/3rQ1B1/1rB5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 a5 e4 h5 d4+ Kb4 g6 c5 g5 f3 d6 h4 b6 h3 b7 a4 g7 c4 d5 f2 g6 f4 d7 c3 b3 h2 Ra3 f3 Be2 f1R Nh3 f2 Ng5 c2 Bf3 Ne7 Kf6 Rh7 g8B Ra5 Rg1 h1B e5 Rh2 e6 Rc5 Qe2 Rc7 Be4 Bf3 Rg3 Bh5 Nc3 Rg2 Rf3 Rh2 Ra2 a3 Na4 Rg2 Ra1 a2 Kf7 Rh2 Rf6 Rg2 Bb2 Rb1 Bc1 f1N Bf3 Ng3 d6 Ngf5 Bd5 Rc4 Bc6 Qc7 d8Q Nd7 b8B Rf4 Ba8 Bb7 Qe8 Nc8 e7 Qc5 Qd8 Rgf2 e8B Bh1 Bg2 Be7 Ba8 Nh4 Kg7 Be4 Bgd5 Rh2 Bef7 Rg2 Qg8 Nf5+ Kh7 Nh6 Kg7 Rg1 Bfe6 Rd1 Bh3 Rd2 Bg2 Qc4 Be6 Qd3 Bf7 Ka5 b4+ Kb5 Bb2 c1Q Bb3 Qc5 Bc1 Rbb2 Rb1 Rbc2 Rb2 a1R Ra2 Rb1 Ra3 Ka6 b5+ Ka5 b6 Kb4 b7 Qe5 Qd5 Rc7 Qe6 Qc5 Qg8 Bf8+
2n1b3/P1Nb1N2/RPnq2QN/4n3/1NP5/Bk3BbQ/1N4r1/KrRn2qr w - - 0 1 illegal: No possible last move, all moves rejected
KB2b3/2N2B2/nP4R1/1RnN1nNn/QNN2qr1/P3rnk1/P1Q5/1r2b2r w - - 0 1 illegal: No proof kernel
3qBQb1/rP1bQ1rR/R1KQ3n/7n/nB3nQ1/P2N1P2/Q3N1bk/b2b4 w - - 0 1 illegal: No proof kernel
2Bn1r2/bn1qbP1r/K1B1QN2/N3RPB1/2bk4/Qb3B2/1RnPB3/4r1n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 c5 a4 h5 f4+ Ke4 g4 e5 d6 c4 f6 c3 f7 h4 g6 b3 g7 c2 d7 b2 a5 h3 g5 h2 a6 Nf6 g8B Be7 a7 Kd4 g6 e4 Ra2 e3 Qf3 e2 Nc3 b1N Bb2 e1B Be2 c1N Qc6 b6 Qe6 Rh7 Ba1 Bf2 Rb2 Bb7 Ne4 Ne8 Nf6 Bd5 Bf3 Qc8 d8Q Ne2 Qdd6 Nc6 Qa3 Qd7 Ka6 Rb8 a8B b5 Bb7 Bb3 Bc8 Nd8 Bc6 b4 Nf3+ Kc5 Rg1 h1B Re1 Ng1 Ne5 Bhd5 Nc4 Nd6 Na5 N6b7 Re3 Kd4 Re5 Rh4 Bh7 Be3 g7 Rh5 Bg6 Rh7 g8B Bf2 Bh5 Be3 Qa2 Na3 Bf3 Nc2 f5 Kd3 Qa4 Ba7 Qa3 Kd4 Be2 Rh4 Bh7 Ra8 Bg6 Rh7 Ng4 Ne1 Bh5 Kc5 Rc2+ Bc4+ Bb5 Nc6 Re4 Rb8 Ra2 Nc2 Bf6 Ra8 Re5 Kd4 Bg5 b3 Nf6 b2 Bhf3 b1R Rb2 Bb3 Ba4 Re1 Bab5 Qc7 Bd7 Rf8 Bc8 Ncd8 Ba4 Qd7 Bc6 Bdc4+
1bbq2RK/k1NQQ3/n2P1n2/r1rPB1R1/nq3p2/8/1Rb2qP1/2RBNR2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Kg4 c5 Kh5 Kc7 e4 Kb7 b4 f5 d4 a4 g6 h6 d6 a3 g7 a2 Kg6 f3 b6 f2 e5 h5 b5 f4 Na3 c4 Nf3 c3 Bb2 h4 Ne1 c2 Rc1 a1N Be2 h3 Rf1 Nf6 g8R Be7 Kg7 h2 d5 h1Q e6 Nb3 Be5 Nc5 Bh5 Qh3 Qe2 Qc3 Qe4 Qb2 Bd1 Ra5 Qe2 Ka8 b7+ Ka7 Qe4 Nba6 b8R Rh1 Qa4 Rg1 Kh8 Qc3 Qe4 Qb4 Qh7 Na4 Ra8+ Kb7 b6 Rh1 Qh4 Rh3 Qh7 Rc3 Nb5 Rc5 Ra7+ Kb8 Rd7 Ka8 b7+ Kb8 Nc7 Ka7 Rb1 c1Q b8R Qe3 Rc1 Qbe4 Rb2 Qb4 Rh1 f1B Qe4 Bc4 Rf1 Qf2 Qh7 Bf8 e7 Bb3 e8Q Bc2 Rdg7 Be7 Qe4 Qd7 Rg4 Bd8 R4g5 Qe7 Qd7 Qf8 Ne6+ Bc7 Qeh7 Qd8 Qhf7 Ka8 Qfe7 Bb8 Nc7+ Ka7
B1b4Q/5qnp/n2BP1Qq/3rNq2/2BB3k/1nr1bb1B/PPR5/1NR3K1 w - - 0 1 illegal: No proof kernel
Bn4Q1/2kb2P1/q1bNQnr1/6Bn/1bPN1r1Q/1p6/1P4Rr/RQq1K1Q1 w - - 0 1 illegal: No possible last move
2kbN1rR/2P5/rqr5/P1Q2qn1/b3pR1n/B2QRPK1/n1R2b2/3B1NR1 w - - 0 1 illegal: No possible last move, all moves rejected
B2Q2bN/BK1B1R2/B1P1nbQ1/2Nn3b/q1B3p1/nP3n2/4rPr1/3R1nk1 w - - 0 1 illegal: No proof kernel
1q3b1b/1BN2k1P/B3n2Q/Pb2nb2/7b/QB3P2/Np1Br3/Rr1KRB1r w - - 0 1 illegal: No possible last move
5b1N/2rK1npB/3nn2N/3N1rB1/1Q1PbPQ1/1PNkn2q/3n3r/1NRR4 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 a5 f4 g3 h4 g2 d3 a4 b6 a3 b7 a2 b3 Nd7+ Ke6 Kd4 b8Q c5 f6 c4 f7 c3 d6 c2 h5 Nb6+ d7 Nc4 h6 Nd6 h7 Nh6 Nc3 Bb7 Qe1 Ra5 Qh4 Be4 Ba3 c1R Nb1 Rc7 Qg4 Qc8 Qb4+ Ke3 d4 Rf5 Ne2 g1N Bg2 Nf3 Rc1 Nd2 Nec3 Kd3 Bh3 Qa6 d8N Qc4+ Nd5 Qc2 Ndc3 Qd1 Bg2 Qf3 Rd1 Qh3 Bh1 Rc8 Kd7 e5 Ne6 Rc5 Nc7 Rc6 N7d5 Rc7+ Kd8 Bg2 Rc1 e4 Rd1 e3 Rc1 Rg8 h8N e2 Rd1 e1N Rc1 Rc4 Kd7 Nef3 Rd1 Ng5 Rc1 Be7 f8N Ne6 Nf7 Rh8 Ng6 Be4 Bg2 Rh7 Ngh8 Bf8 Qb7 Nc8 Be7 Nd6 Qb4 Rc8 Bg5 Rc5 Na3 Rc4 Rab1 a1N Rd1 Nc2 Rbc1 Ne3 Nab1 Ng8 Bf3 Rh4 Bh1 Nh6 Bg2 Qg3 Bh1 Rh2 Bf3 Qh3 Bg2 Ng8 Nh6 Rf7+ Be7 Bg6 Nf5 Nh6 Bf3 Rf6 Bd8 Nhf7 Nh6 Bf5 Be7 Rg6 Bg5 Rf6 Qg3 Bg6 Bg4 Be4 Bf5 Rc5 Bh7 Rf5 Qg4 Rc7+
k1N1Q1RK/1rP1nrB1/3B2N1/6rq/n7/Rn1b2bP/n1P2pB1/QB2nB2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 g5 Kd3 a5 Ke4 g3 Kf5 d5+ e6 a4 e4 d4 b4 d3 b6 g2 b5 d2 c6 g4 e5 a3 h3 g3 b7 a2 b6 Nd7 b8B Bd6 e7 Ba6 b7 Rh7 Bb2 Nb6 Ne2 g1N Nf4 g2 Na3 Na4 Nc4 Ra7 Nb6 Nf3 Rg1 Ne1 Nc8 Qa5 Ng6 Bd3+ Kg5 f5 Qc1 Ba3 Bd6 d1N b8Q f4 c7 Kd7 Bd4 Kc6 e8B+ Rd7 Bf7 Ne7 Kh6 f3 Kh7 f2 e6 Ndc3 Bg7 Rb7 Kh8 Bc5 Qa8 Be3 Qd1 Bf4 Qh5 Bg3 Qd1 Nf5 e7 Qd5 e8B Ne7 Rb1 a1N Rb3 Qc5 Ra3 Nb3 Qa1 Na2 Qb8 Kb5 Bd5 Ka6 Bef7 Qa5 Na7 Qc5 Qe8 Qb5 Nc8 Qc5 Nb6 Ka7 Nc8+ Ka8 Rh1 g1R Bdg2 Nc6 Bfd5 Rf7 Be6 Ne7 Bc4 Nb4 Bcd5 Nd2 Ba2 Nb3 Bb1 Qb5 Bd5 Rg2 Rg1 Na2 Be4 Be5 Bf3 Rg5 B3g2 Bg3 Ne5 Bh2 Bf6 Rg4 Bh1 Rd4 Rg8 Rd5 Ng6 Bg3 Bhg2 Re5 Bg7 Qd5 Nf4 Qf3 Ng6 Rg5 Qf6 Qe2 Qa1 Qh5+
Bn1nn2r/N3N2N/r2nr2B/b3Q3/5Q1R/PPP1bN1R/N2p3K/1bqk4 w - - 0 1 illegal: No proof kernel
1q2k2b/1n6/3n1R2/2Qr2P1/pKQ3Bb/2PRrN1n/1N3R1P/B2nRrRb w - - 0 1 illegal: No proof kernel
r2n3k/2r1rQ2/n2NP3/2B1bbBn/BB1PQPR1/2qn1B2/3K1bp1/2N4R w - - 0 1 illegal: No proof kernel
nRB1QB1r/1KRbPp2/1b1R1b2/2RNq2r/N1bP3R/n4P2/4k3/3n1rQ1 w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 e5 d3 g5 c3 e4 dxe4 d4 cxd4 gxh4 Kd2 Kd7 Kc3 Ke6 Kc4 a5 b4 h5 g4 c5 g5 a4 e5 Kf5 e6 Ke4 g6 a3 g7 a2 e7 h3 e8Q+ Ne7 g8R h4 b6 h2 Kb5 h3 b7 c4 Rg5 c3 Rc5 c2 Bh6 Nd7 b8R c1B Rb7 Nb6 Rbc7 Bg5 Nc3+ Kf4 e4 Qd6 e5 Nf5 e6 Qe5 Kc6 Ra5 b5 Bd7+ Kb7 Ne3 Nge2+ Kf3 Bg7 Na8 b6 Bf6 Na4 Nc4 Qb1 Na3 Nec3 B8e7 Bb5 Bd8 Ba6 Rb5 Nd5 Ke2 Rd1 h1B f3 h2 e7 Bg2 Bf8 h1N Rg1 Bf1 Rg4 Nf2 Rh4 Nd1 Qg6 Nc2 Qg1 Na3 Rac1 a1R R5c6 Bfh3 Rd6 Bhe6 R1c5 Rc1 Ka7 Rb1 b7 Ra1 b8R Rc1 Nb4 Bc4 Nd5 Rcb1 Bc8 Rc1 R7c6 Bb6+ Ka6 Ne3 Rc7 Rf1 Kb7 Nd1 Rh6 Rb3 Rh1 Re3 Rh3 Re4 Rh1 Reh4 Rh3 R4h6 Rh4 Rh5
1br1b3/4nq1N/4nr2/rPB3r1/1p1q1P2/QQR1Nr1K/P1NNBR2/4N2k w - - 0 1 illegal: No possible last move
6n1/1N3R1b/RPqR1qQ1/7q/NB1r1q2/b1qRRQ1p/2PP1nK1/1k2r2B w - - 0 1 illegal: No possible last move, all moves rejected
1k1BbQ2/3nbP2/5r2/p1q1rqB1/n1BRr3/1r3r1K/P1R4P/NQB2NB1 w - - 0 1 illegal: No possible last move
4n1RQ/1nKN1q1n/R7/4RR1P/pn5Q/2PBbNrq/kP3Rb1/Bbr5 w - - 0 1 illegal: Other
NNQ1n3/rQ1q2r1/N1N2B2/nP1B3N/1R2b1P1/r1qP1K2/1p6/2k1bRbr w - - 0 1 illegal: No proof kernel
1K3n1q/1B2N3/2QNR2p/2N2QN1/B1r2Pbb/nN3rR1/1bq2PbP/2rk4 w - - 0 1 legal: proof: d4 d5 c4 b5 a4 e5 axb5 f5 g3 f4 gxf4 Bd6 Be3 Bf5 cxd5 Be7 d6 Bf8 d5 Bc8 Bd4 exd4 Kd2 Kd7 Kd3 g5 Kc4 a5 Kc5 a4 e4 h6 b4 g4 b6 g3 b5 d3 b7 a3 e5 g2 b6 a2 Nf3 g1Q Nbd2 Nf6 Qc1 Ra3 Bg2 Nc6 b8Q Nh7 b7 Qd1 Ng5 Nb4 Nb3 d2 Re1 Be7 Re4 Nf8 e6+ Ke8 Re1 Nc2 Kc6 Rh7 Rb1 a1B Re2 Bef6 e7 Bg4 Qc8 Bab2 b8N Rg7 Kb7 c5 Bf3 c4 Re6 c3 Na6 Rf7 Qc5 Kd7 Ra1 Rg7 Ka7 Ra4 Ra3 Rc4 Bh1 Bf3 Qa5 Bg2 e8B+ Kc8+ Ka8 Qe2 Bb5 d1B Nac5 Qd3 Ba4 Bg4 Qb5 Qh7 d7+ Kc7+ Ka7 Qh8 Qb1 Qc8 d8N Rg6 Ndf7 Rg8 Nh7 Bh4 Nhg5 Rg6 Nd6 Rg8 Ra2 Na3 Qf5 c2 Ra1 Rg7 Rg1 c1R Qe8 Qd7 Ka8 Kb6 Kb8 Qc6 Qd7 B2h3 Rg3 Bg2 Nb5 Re7 d6 Qe4 Qc8 Qc2 Qe8 Rc7 d7+ Rc6 d8N Rc3 Rf6 Rf3 Nd6 Rc7 Re6 Rc6 Na1 Ka5 Nab3+ Kb4 Qd7 Rc7 Nc6+ Kc3 Ne7 Rc6 Na6 Rc5 Qc6 Rc4 Nac5 Bf1 Na5 Kd2 Nab3+ Kd1 Qd7 Rfc3 Bb7 Bg2 Qc6 Rf3
Bq1QN1r1/Q1nb4/1NP1RN1P/2N5/2pk3K/1q1rq3/2P1R1b1/1qB1nN1n w - - 0 1 legal: proof: e4 f5 exf5 b5 g4 h5 a4 hxg4 axb5 c5 d4 c4 Ra6 e6 Ra1 Bc5 dxc5 Qf6 Ra4 Qg5 Ra1 Qd8 f4 Ke7 Kf2 Kf6 Kg3 a5 b4 g5 h4 d5 b6 e5 b5 e4 b7 e3 h5 d4 b6 d3 h6 d2 Nf3 e2 Nh4 e1N Rh2 a4 Bg2 Na6 b8Q a3 b7 a2 Qa7 Bd7 b8N Nc7 Na6 Qb8 Bb7 Rh7 c6 Ne7 Re2 Rg7 Nc5 Rg8 Qa3 Ra5 Ba8 Rb5 Qa7 Rb3+ Nf3 Re3 Nc3 Rd3 N3a4 Qb3 Rb1 a1Q Nb6 Qa6 Ra1 Qc8 Ra3 Qb8 Ra5 Kf7 f6 Kg6 f7 Kf6 f8N Nf5+ Kf2 Ng3 Nfe6 Kf5 Nh2 Kf6 f5 Nh1+ Kg1 g3 Ng7 g4 Nf1 g2 Kh2 g3+ Kh3 g1Q Kh4 Qe3 Ne8+ Ke5 f6 g2 f7 g1Q f8N Kd4 Nh7 Qb1 Nhf6 Qf3 Re6 Qge3 Qe2 d1B Qd2 Qg2 Ra1 Bf3 Ra3 Qge2 Qda5 Bg2 Rb3 Rd1 Ra3 Q3f3 Rae3 Rd3 R3e5 Qd2 Re3 Qc3 Re2 Qcb3 Qd2 Rg3 Qg5 Qe3 Qg8 Rg7 Qf8 Rg6 Qe7 Rg3 Qd8 Rg8
b1K1b3/1Q1B3B/nPr2qPq/2n4N/NB1Qr3/Rb1B1BbP/2p4k/1R4n1 w - - 0 1 illegal: No proof kernel
N6Q/1Q1R1n1P/2q2nRb/1Br2qPN/N2N1Br1/2Nq3p/1P2K1n1/kb3n2 w - - 0 1 illegal: No proof kernel
2kqqq2/q1Bb1p1B/P4bB1/PP1R2K1/5N1n/5Q1r/N3QRbr/n3B2B w - - 0 1 illegal: No possible last move, all moves rejected
NbQ1r3/2R1PqR1/r4Q2/1R4q1/1Rp3PB/n1Kq3q/1nP1R1B1/k2N1b1b w - - 0 1 illegal: No possible last move, all moves rejected
8/1qR1pq1K/2n5/1N4kP/nP1PbbNR/r3QbB1/N4NN1/1r1BqQ1b w - - 0 1 illegal: No possible last move
K1b1Rr1n/2p2PB1/1Bq1NPN1/bR1n3q/Q7/b1k1N2r/1NP1b3/N1Q1q3 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 Na6 gxf5 Nb8 Bh3 Ba6 Bg4 hxg4 Ra5 Bb7 Ra1 Bc8 Kd2 Kf7 Kc3 g5 Kd4 a5 Kd5 d6 h4 g3 b4 g2 e4 a4 f4 a3 h5 g4 f6 a2 h6 g3 b6 Bh3 e6+ Kg6 f7 Kf6 e7 Ra7 e8Q Rb7 e5+ Kf5 h7 Na6 Kc6 Ke4 b5 d5 f5 d4 e6 d3 e7 Kd4 f6 d2 Nc3 Bc8 Rh5 Bf5 Nf3+ Kc4 Na4 g1Q Nh2 g2 Nf1 Qh2 Nb2+ Kb4 Ne3 Rb8 b7 g1B b6 Bh3 Rb5+ Kc3 Qf1 Ra8 b8B d1B Kb7 Qf4 Ba7 Qe5 Qd7 Rc8 e8N Bhg4 Ng7 Qh2 Ne6 Bde2 Rb1 a1Q Re5 Qe8 Qa4 Nb8 Ka8 Ba3 b7 Qh5 Bb6 Nd7+ b8N Ne7 Rb5 Rf8 h8N Ne5 Ng6 Rd8 Qff4 Rd3 Qh6 Bf2 Qg5 Be1 Qh6 Nc8 Nd7 Bf5 Ndc5 Qc6+ Kb8 Bfg4 Nb3 Ne7+ Ka7 Nd5 Qg5 Qa2 Na1 Qb3 Qgf4 Qb4 Nec4 Ne7 Nd8 Bc8 Qg5 Bf3 Kb8 Qbc5 Nf4 Nd5 Qg1 Qe8 Ka8 Ng6 Qe3 Nh8 Ng6 Qd6 Qg1 Bfg4 Bh6 Rh3 Bg7 Qc5 Qh1 Kd4 Qf1 Ba5 Re1 Qe4 Re3 Qh1 Re8 Kc3 Ne6 Be2 Qc1 Qe1 Ne3 Qc6+
N3n1r1/5N1P/n2R1nQ1/Pn3R2/k3BB2/3K3r/bbRRPqnp/1RQn4 w - - 0 1 illegal: No proof kernel
1brR1nb1/Nn2R3/2b3P1/1R4Q1/pP1BR1bN/4K1RQ/P1k4r/1n2B1nq w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 f4 Bf8 g4 h5 Bh3 Ba3 fxg5 Bb7 g6 Bc8 g5 Bf8 Bg4 hxg4 Kd2 Ke7 h4 Ke6 b4 Kd5 e4+ Kd4 e6 a5 b6 f5 e5 c5 h5 d5 b7 g3 e7 g2 e8Q a4 g7 f4 e6 f3 g6 f2 h6 f1B e7 c4 h7 Be6 Qe1 c3+ Kc2 Na6 b8R Nf6 g8R Bb5 Bh6 Nd7 Qf1 Nac5 Qef7 Bc6 e8R Nb7 Bd2 Bd6 Re7 Nf8 Be1 Bg3 Kd1 c2+ Kd2 c1N Q7f5 Ne2 Qg5 Nc3 Na3 Nb1+ Ke2 Ke4 Nf3 d4 Rg1 Qd5 Nh4 Be5 Nb5 d3+ Kf2 d2 Na7 d1B Rd8 Bdg4 Rgg7 Rg8 h8B Bb8 Rh7 Rg7 Rh5 Rh7 Bd4 Rh6 Rh1 g1N Rh3 Rh7 Rg3 Rh6 Qh3 Rh7 Be3 Kd3 Bd4+ Kc2 Ke3 Bg8 Re4 Rh6 Re7 Qh1 Re4 Nc3 Rd1 Rh8 Rh7 Nb1 Rhe7 Be5 Rd5 Rc8 Rb5 Rh6 Bb6 Rh7 Rd8 Bb8 Bc5 Rf7 Bb6 Rf2 Bd4 Rh2
4BN2/2RPr1bR/1N1PNK2/1b1p4/1n1nN1k1/1NB1b1Pn/3Q1Q2/rnq3b1 w - - 0 1 illegal: No proof kernel
1br4n/1P2K2p/1r1P4/N3rQ1r/B4qB1/BBk3PQ/nRn2Bb1/N1nR4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 a5 d4 c5 g3 f5 b6 a4 d6 f3 b7 f4 d5 a3 b5 f2 e4+ Kb4 b6 f3 g6 c4 g7 a2 d7 c3 Ke6 c2 d6 Nf6 g8B Na6 b8Q Ng4 b7 Ne5 Na3 Ra7 Nc4 Be7 Na5 Nf7 e5 Qf8 Rb1+ Kc3 Ba3 a1N Rb2 c1N Bh3 f1R Bg4 f2 Nf3 Re1 Nd4 f1R Nc2 Rf5 Qd5 Rh5 Qa8 Re2 Rd1 Bd8 Qh1 Re1 Qh3 Bc7 Qb8 Qh6+ Ke7 Nb4 d8B Nba2 e6 Ra6 Qa7 Ree5 Qf2 Rb6 Qf5 Bb8 Bc7 Rbb5 Bb6 Qf4 Be3 Rb6 Bf2 Nab3 Na1 Nd4 Kf6 Nc2 e7 Bd7 e8B Bc6 Bd7 Bg2 Ba4 Ng5 Bgb3 Rc8 Bfc5 Nf7 Bf2 Reb5 Ke6 Nh8 Ke7 Re5+
Rb2Rrr1/1BBN4/n3P2k/1K1bq1Np/7P/4R3/Qq2RqP1/1RrrQ1q1 w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 Bb7 axb5 Ba6 f4 gxf4 c4 Nc6 c5 Na5 c6 Qc8 b6 Qd8 b5 Bc8 Qc2 Bd6 Qd1 Nb7 cxb7 Bf8 Kd2 d5 Kc3 f5 b8Q Kf7 e4 Kg6 h4 c5 e6 a5 b7 h5 e5 f3 b6 c4 e7 f4 e8R d4+ Kd2 c3+ Kd3 f2 Kc4 a4 e6 a3 Qe1 f3 Qe3 c2 Qc7 a2 b8R d3 b7 d2 Ba3 d1R Kb5 c1R Qc4 Qd6 Nc3 Qe5+ Nd5 Bd6 Rh3 Ne7 Rb1 a1Q Qe1 Rf8 Qa2 Kh6 Rg3 Rg8 Nh3 Nc6 Ng5 Nb4 Bd3 Rf8 Be4 Na6 Bb4 Qac3 Ba5 Bc7 Rb2 f1Q+ Re2 f2 Re3 Qg1 Bb6 Bd6 Bc7 f1Q Bf3 Qff2 Be4 Qeh2 Nb6 Qhe5+ Bd5 Qa3 Nd7 Qab2+ Qb4 Ra7 Ra8 Rg8 b8R Bb7 Ka4 Rf8 Qe1 Rg8 Bf3 Bd5 Rb6 Rb7 Rbb3 Rb8 Rb6 Bc4 Bb7 Bd5 Rb4 Rf8 Kb5 Rd8 Ba5 Bb8 Bc7 Qa3 Rb1 Rg8 Re7 Rdf8 Re8 Qab2+
4b3/N3qpk1/Bn1B2P1/p1b1R1nr/B4NPn/RBPr4/1K4b1/QQrB4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 bxa4 d4 Qf6 dxc5 Qd8 Kd2 d5 Kc3 a5 g4 h5 e4 h4 b4 a3 g6 h3 c6 h2 b5 a2 e6 d4+ Kb2 d3 e5 d2 b6 Qd4+ c3 Nf6 e7 Nbd7 c7 Nc5 b7 Ng8 b8Q Ra6 Be2 Rd6 Nh3 Qe3 Nf4 Ne6 Na3 Ng5 Nb5 Nf6 Re1 h1B Na7 Rd3 Qbb3 Bcb7 c8B Bbc6 Ba6 Nd5 Qbc2 Rh3 Qb1 Nb6 Qa4 Qc5 Bd1 Rh5 Bb3 d1R Be3 Qd6 Bc5 Rc1 Ba3 Qf6 Bd6 Bg2 Re3 Kd7 e8B+ Kd8 e6 Qe7 Bd7 Bb5 Bdc8 Ke8 Bcb7 Bd7 Re5 Bdc6 Qc2 Bd7 Bf3 Bc6 Rb1 a1N Qd1 Nc2 Ra1 Ne1 Ra3 Bb5 Qc2 Bc6 Bd1 Nef3 Qb1 Bd7 Qb5 Nh4 Qa1 Bh6 Qb4 Kf8 Qe4 Kg7 Qb7 Qf8 e7 Bb5 e8B Qe7 Bd7 Bbc6 Bc8 Be8 Bd7 Kh8 Bdb5 Bf8 B5a4 Kg7 Qe4 Rh3 Qeb1 Rd3 Bb8 Qb7 Bc7 Bc5 Bd6 Qe7
5b2/NRr3qB/3n3k/6r1/3qPBpn/R3pbBr/1bPQPBN1/1K2QB2 w - - 0 1 legal: proof: g4 e5 d4 b5 a4 h5 axb5 hxg4 f3 c5 dxc5 e4 Qd6 e3 Qd5 Qe7 Qd1 Qe4 fxe4 Bb7 Nd2 Ba6 Nb1 Bc8 h4 d5 b4 a5 c6 g5 b6 f5 c7 Kf7 h5 Kg7 b7 f4 b5 d4 b6 f3 Rh2 g3 Nh3 d3 Qd2 g2 Kd1 g1Q Ra3 a4 Rh1 f2 Nc3 Kh6 Nb5 Ra5 Na7 Nc6 b8B Nce7 b7 Nf6 Nf4 Ne8 Ng2 Bg4 c8B Bf3 Bg3 Nf5 b8B Nh4 Bbf4 Nd6 Bf5 Rh7 Bb2 Rc7 Kc1 Rac5 Qe1 d2+ Kb1 d1Q+ Bc1 Qd2 Bh7 Qd4 Bd2 Rd5 Qc1 Rf5 Be1 Rfc5 Qd2 Rd5 Rb3 a3 Rb7 a2+ Kc1 a1B Kb1 Kg7 h6+ Kf7 Bg8+ Kg6 h7 Bb2 h8Q Rdc5 Bh7+ Kh6 Be5 g4 Bef4+ Rg5 Qe5 Qh2 Qe7 Ng6 Qd7 Qh5 Qc6 Nh4 Qcc3 Qf7 Qdd3 Qh5 Ka2 Nhf5 Nh4 Nf7 Bg2 f1R Bef2 N7d6 Qd1 Rg1 Qcd2 Qe8 Bh3 Rg2 Re1 Rh2 Bf1 Qb4 Ng2 Qd4 Qa1 Rh3 Rb1 Bc3 R1b3 Nh4 Ra3 Qd7 Qae1 Q7g7 Kb1 Bb2
1K1Br1b1/rQ2q3/3RNq2/QB1q1B1r/3P3n/P2n1N1p/p1BR3P/B1k3b1 w - - 0 1 illegal: No proof kernel
2b1B2K/R2n1rb1/bqB1q3/R4pN1/1q1QP2p/1QB1B1r1/1PNPB3/2k1n3 w - - 0 1 illegal: No proof kernel forced: bxDB
6rr/3qrb2/1RB4k/qR1pRK2/Qb1N2P1/3n1R2/NQ1P1pRP/2nbB3 w - - 0 1 illegal: No proof kernel
1N6/qBBn1Q1B/NRR5/P2rrn1K/2pb2Qn/6q1/pPP3bk/B2B1r2 w - - 0 1 illegal: Other
kn2Q3/2K5/bb3r1N/pNR1P1Q1/Prq1nqB1/QPBp2Q1/1r2R3/5q1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 fxe5 Be7 dxc5 Bf8 c4 bxc4 Kd2 a5 Ke3 d5 Kf4 Kd7 h4 Kc6 a4 Kb7 e4 f5 h6 d4 e6 g5+ Ke5 g4 h5 f4 e7 c3 e8Q d3 h7 f3 h6 c2 b3 f2 c6+ Ka7 c7 g3 Rh5 g2 Bb2 c1R Ne2 g1Q Nd4 Nf6 Bh3 f1Q Qd2 Rc4 Bc3 Qd1 Qg5 Qh1 Ra2 Qc1 Na3 Rb4 Re2 Qb1 Bg4 Qhd1 Nab5+ Kb7 Nf5 Bc5 Qe7 Rf8 h8Q Qd2 h7 Qf1 Qhg7 Ra6 h8Q Ba7 Nh6 Ka8 Qhh7 Bb7 c8Q Qc7+ Qd6 Qc4 Qe8 Rc6 Qc5 Rc7 Kd6 Ba6 Qgg8 Re7 Qg8g6 Re5 Kc7 Rf5 Qgg8 Rf2 Qg8g6 Nd7 Qd6 R8f6 Qg3 Qdc1 e5 Q1f4 Rh2 Rg2 Rc2 Rf2 Rc1 Rb2 Re2 Qg8 Qd6 Nc5 Qe4+ Qd5 Qh1 Ne4 Rcc2 Rd4 Qa3 Rb4 Be1 Qd4 Rc5 Qc4 Bc3 Bb6#
2B1b2r/k1BnbR2/PNpq2b1/2N1P3/3n1pPB/1q2R2Q/rB3K2/3Q1r1B w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Kd7 a4 b5 e4 h5 d4 f5 a5 h4 e6+ Kd6 g6 f4 e7 h3 e8Q b3 a6 c6 g7 Kc7 d6+ Kb6 e5 b2 d7 h2 d5 b4 d6 b3 Qh5 Bb7 Kf2 Nf6 g8B Ra7 Bg2 Qe7 Ra3 Ne8 d8B+ Nc7 d7 Bc8 Nc3 b1B Be6 b2 Ne4 Qd6 Ne2 Rb7 Re3 Ka7 Bh4 Nb5 d8B Bd7 Nc5 Nd4 Bc7 Be7 Nc3 Be8 Bc8 Bbg6 N3a4 b1Q Bb2 Nd7 Bd5 Rb4 Nb6 Ra4 Qh7 Bh5 Qhd3 Bhg6 Q3f1 Qd3 Qh3 Qb5 Rhe1 Ra2 Bh1 Qb3 Rd3 Nf5 Rd5 Nd4 Re3 Qe6 Rd6 Qed5 Rf6 Qd6 Be4 h1R Rf7 Rg1 Bh1 Rf1+
rK3R1b/N5np/2qNn2B/1QPB1pQb/1N1kPq1r/4NP2/2R5/bN5q w - - 0 1 illegal: No possible last move
2K1QQ2/1B2RNp1/qn4QP/8/1B1qpqN1/3r2nn/P1RbQQP1/1k3r1b w - - 0 1 illegal: No proof kernel
1bq5/1rR1P2k/b3B3/1NBBNrn1/1qR3pp/3BQn2/BP3bPQ/4rK2 w - - 0 1 illegal: No proof kernel
3K1k2/1nR1R2r/1p1b1p2/3Bn1Rr/b2N3Q/1B1Rqn1Q/1P4PP/2n2bRN w - - 0 1 illegal: No proof kernel
7r/k6p/2QQRr1P/1b2p1K1/2b1B2P/n1rP2Q1/N2N1bRB/2qrQ1nQ w - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Nd7 b4 axb4 g4 Nb8 h4 Qd6 Bc4 Qh6 Bf1 Qh5 gxh5 Ra4 Qe2 Ra7 Qd1 Ra8 Ke2 Kd8 Ke3 e5 f4 b5 a4 c5 f6 Kc7 a5 Kb7 d6 g5 d3 b3 f5 b4 h6 g4 d7 b2 d8Q b3 f7 c4 f6 c3 a6+ Ka7 Bg2 c2 Bb7 g3 Qc7 g2 Rh2 Nd7 Nf3 g1R Qc6 Rf1 Nc3 b1B Nd2 b2 Rg2 Ne7 Ke4 Nb6 Na2 Ned5 Qe1 Bc5 f8Q Nf4 f7 Bf2 Qg7 Ne2 f8Q Nc4 Qfd6 Bd7 Qg3 Rac8 Ba8 Be8 Kf5 Ng1 Kg5 Na3 Ne4 Rb8 Bf4 c1Q Nd2 Bc2 Bb7 b1R Ba8 R1b3 Rb1 Rc3 Rb6 Bb1 Qc8 Bc5 Qch3 Bc2 Qgg4 Qb1 Qd4 Bb3 Be4 Bc4 Qh1 Rf3 Qd8 Bf2 Bh2 Rf6 Qg3 Bc6 Qe7+ Ka8 a7 Qc2 Ra6 Rb1 Qd7 Rd1 Rb6 Bb7 Re6 Bc6 Qd6 Kb7 a8Q+ Kb6 Qa4 Qc1 Qb5+ Ka7 Qbd5 Ba4 Q5c6 Bab5
1R1N1K2/P7/1RBN1n2/b2RbqP1/rr4RP/2b3Bn/pkpQ1rb1/R3Q3 w - - 0 1 illegal: No proof kernel
QB1r4/B3nR1r/2R2pp1/QP5q/b3Rbkn/2K3Pr/1PR2r2/2qN2NR w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 fxe5 h4 axb5 h3 g3 Bd7 Bg2 hxg2 Ra5 Be6 Ra1 Bc8 e4 Ke7 d4 a5 Kd2 c5 h4 a4 h5 g6 h6 f6 h7 a3 d6+ Ke6 d7 c4 d5+ Ke7 e6 a2 e5 Qb6 d8R Qc6 Rd6 Nd7 Kc3 Bh6 Qa4 Bf4 Be3 Qc5 Qa5 Bb7 Rc6 Rd8 Nh3 g1R d6+ Ke8 e7 Kf7 e8R Ne7 Bf2 Ke6 Rf8 Kf5 e6 Ne5 d7 Nf3 Rf7 Rf1 Ng1 Nh4 Rh2 Qd5 Ba7 Kg4 Rc2 Rf2 Bb8 Qh5 Ba7 Rhg8 h8Q Rg7 Qe8 Rh7 Qh8 Rg8 d8B Ba8 Bdb6 Rd8 Bb8 Bb7 B6a7 Ba8 Rd6 Be4 Rc6 Bf5 Nd2 Be4 Nf1 Bf3 Re1 a1R Qf8 Bd1 Qe8 Nef5 e7 Ra4 Qh8 Rb4 e8R Ne7 Rc1 Bb3 Rc2 Ra4 Re4 Ra1 Rg8 Ba4 Rgg7 Rad1 Qf8 R1d7 Rg8 Rdd2 Rh8 Rh2 Qg8 Rdf2 Qe8 Rh3 Ne3+ Kg5 Nd1 Kg4 Be5 Rd7 Qa8 Rd8 Kb4 c3 Beb8 Rh6 Rce2 c2 Kc3 c1Q+ Rc2 Rh7 Re8 Rd7 Re1 Nf3 Ne2 Rd8 Rh1 Ng8 Ng1 Nh4 Re4 Ne7
2B1r1k1/N1Q4b/P2b1Ppr/4NQ1n/7B/1r1BBn1P/qpq2R2/r1BK2R1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 a4 d5 f4 e5 h3 b5 h6 b3 c6 b4 h7 b2 c7 e4 a5 d4 c5 g6 f6 d3 c6 b3 a6 e3 f5 e2 Ra2 Bc5 Na3 b1R Nf3 Nd7 Nb5 Qe8 Rg1 Bd6 Qc2 Ne5 Na7 Be6 c8B Qe7 Kd2 e1R c7 Kf8 f7 Nf6 Qc4 Nh5 Qc3 Re3 Kd1 d2 Bd3 Ra1 Rb2 Kg7 f8B+ Kf7 Rc2 b2 Bh6 Re8 h8B Kg8 Bf6 Qf7 Bh4 Ba2 Nd4 Nf3 f6 Rb8 Qc5 Rb3 Qc6 R3e7 Be3 Qe6 Qe4 Rh7 Ndc6 Rh6 Ne5 Qd5 Qf5 Qa5 Bd7 Qa4 c8Q Qc4 Qc7 Qd5 Ke2 d1Q+ Kf2 Qe6 Re2 Qc2 Bc8 Rc3 Rd2 Bc4 Kf1 Rb3 Ke2 Qd5 Rg5 Qa5 Rg1 Qa2 Be6+ Kf8 Bd7 Bg8 Bc8 Nh2 Ke1 Bh7 Rdg2 Kg8 Rf2 Qc3+ Ke2 Nf3 Kd1 Qc2+
qr4k1/n1r3P1/P4Bp1/3q2N1/n1b1b2b/K2Q1R1R/1N1QpPB1/b1Q2Q1Q w - - 0 1 illegal: No proof kernel
k5qN/1p2PnB1/1P3n1q/1RrR1QqB/N3p1bP/1Q1Q2b1/4qQ1K/3rQ3 w - - 0 1 illegal: No possible last move, all moves rejected
2nqr3/P6b/kb1Rn3/4qN2/N3PrN1/p1p2RP1/1B1N2BQ/rNQK3r w - - 0 1 illegal: No possible last move, all moves rejected
q2nRR2/4P1pr/pKRQ3B/P2Rr3/1rP3BN/n1rR1Q2/8/Nqb1r1k1 w - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 hxg4 f4 c5 b4 b6 bxc5 Rh7 e4 Bb7 f5 Bd5 Nf3 Bc4 Ng1 Be6 fxe6 Rh8 Ke2 Ke7 Kd3 d5 Kd4 f5 c4 a6 h4 b5 a4 f4 h5 b4 a5 f3 h6 f2 c6 g3 Kc5 b3 h7 b2 c7 d4 c8Q d3 Rh5 g2 Ra4 d2 Qf3 d1R Rg5 Re1 Ra3 Nf6 Qc6 Ne8 Be2 f1R Rd3 Nd6 Na3 b1Q Nc2 Nb5 Na1 Rf2 Bd1 Rfe2 Qd5 Qc8+ Kb6 Nc6 Rh5 Rc2 Bh6 Nd8 Qc6 Rc3 Qd6+ Ke8 e7 Re2 Qg3 Kf7 e6+ Kf6 Nf3 g1R e8R Rge1 Nh4 Re3 Re7 Rb8+ Rb7 Be7 Bg4 R3e2 Rhd5 Bf8 Qc6 Ba3 Qcd6 Bc1 e7+ Ne6 Qc5 Nd8 e8R Re3 Nf3 Kg6 e5 R3e2 e6 Re5 e7 Kf6 Bh5 Kf5 Bg4+ Ke4 Qc6 Rg5 Qgd6 Re5 Ng5+ Kf4 Nf3+ Kg3 Nh4+ Kh2 Rf8 Kg1 Re8 Rf8 h8R Rf2 Rhf8 Rh2 Kc5 Rh1 Rc7 Rb6 Qb7 Qa8 Rc6 Na3 Qbd7 Rb4 Qf5 Nb5 Qf3 Rh3 Kb6 Rh2 Ng6 Rhh5 Bg5 Rh6 Nh4 Rh7 Bh6 Na3+
2kNn1QR/2b2Rq1/2p1N1Pr/1RQ2b2/2R1BP2/1KP2p2/bR6/Bbb3rq w - - 0 1 illegal: No possible last move
4R2r/n1p1b3/k4PqB/N2Q1Bb1/P1qb1Q1p/6BP/Bq2bK2/nBN2R2 w - - 0 1 legal: proof: f4 d5 g4 a5 b4 e5 bxa5 f5 c3 b5 fxe5 f4 c4 dxc4 Qb3 Ra6 Qa4 Rf6 Qd1 Rf5 gxf5 Kd7 Na3 Ke7 Nb1 Ke8 a4 Kd7 d4 Kc6 e4 Kb7 d5 g5 e6 h5 d6 c3 e5 g4 a6+ Kb6 a7 f3 a8Q b4 e7 g3 e8B g2 e6 c2 d7 b3 e7 b2 h3 Nf6 Kf2 Nd5 Bd3 Bg7 Qf1 Bf6 Na3 b1Q Bh6 c1B Bf7 Nb4 e8B Be7 Qd5 Bcg5 Nc4+ Ka6 Ne2 Nc2 Nc1 Nc6 Na5+ Qb5 f6 h4 Bf5 Na7 Ra2 Na1 Re2 Qb8 B7e6 Qb7 Beg6 Qg8 d8B Qb2 Bb1 Bd7 Bgf5 Qg6 Bg8 Bb5 Rg1 Bf8 Be7 Bc4 Ba3 Be7 Bd6 Bd3 Rh1 Bb5 Bg3 g1B+ Ke1 Bd4 Re6+ Bd6 Re8 Be2 Qf2 B6c5 Qe3 Be7 Kf2 Bc3 Qf4 Be5 Ke3 f2 Rg1 f1Q Rh1 Qg2 Rf1 Qe4+ Kf2 Qec2 Qa8 Qe4 Bga2 Qc4 Qd5 Bd4+
B2q4/r4q2/2NPR3/1KQ4b/4nBB1/1Bpnrp2/B1PkqP1N/QR1r2r1 w - - 0 2 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 hxg5 a5 b4 a4 Qf3 Bg7 Qd1 Bd4 Be2 Bb6 Bf1 Ba5 bxa5 Qd5 Rh3 Qd6 Rh1 Qd8 Ke2 Kd7 g4 Ke6 d4 Kd5 g6 Kc4 a6 c5 b6 f5 g7 h5 b7 e5 d5 f4 a7 a3 g5 a2 d6 h4 g6 e3 Ba3 e4 Qd2 h3 Nc3 h2 Qc1 Na6 b8Q Bg4+ Nf3 Nb4 Qc7 Bh5 Rg1 h1Q Bh3 Nf6 Rb1 a1R Nd5 Nd3 Ne7 Kc3 g8B c4 g7 Qh2 Bd5 Re8 g8B Qg3 Qc5 Qg6 Bde6 Qf7 Nc6 Re7 Beg4 Re6 Nh2 f3+ Kd1 Re5 Re1 Rg5 Be6 Rg1 Bhf5 Rb8 a8B Rb7 Bg4 Ra7 Rb7 Ne5 Qb1 e2+ Kc1 e3 Rb2 Ra2 Qa1 Nd3+ Kb1 Kd2 Rb8 c3 Bb3 Qdd7 Re8 Ne4 Re6 Qde8 Rf1 e1R+ Bc1+ Kd1 Bd2 e2 Bg5 R2a4 Bf4 Qd8 Ba2 Ng5 Bb3 Re4 Ba2 Re3 Bb3 Rd7 Ka2+ Kd2 Ka3 Ne4 Ka4 Rd1 Kb5 e1Q Ba2 Qe2 Bb3 Rb1 Rc1 Ra7 Rf1 Rb2 Re1 Rba2 Rb1 R2a4 Ba2 Rd4 Qa3 Qg6 Re5 Ne1+ Bgc4 Qf7 Qc5 Rd5 Re6 Rd3 Rb3 Rd5 Bb1 Kc1 Rb2 Rd1 Ba2+ Kd2 Rb1 Nd3 Bd5 Ng5 Bdb3 Ne4
RB1R2Rr/n2nbb1R/P3p3/Q2P4/1N2P1QR/bq2Nn2/4pk1K/1b2qB2 w - - 0 1 illegal: No proof kernel
bRQ1NNnr/1Bp5/1n1NbB1N/2P2Npn/8/q2kb2b/6PP/2q1R1KQ w - - 0 2 legal: proof: e4 a5 d4 h5 Qxh5 e5 f4 exd4 a4 b5 axb5 Rh6 e5 Bc5 f5 Bf8 Qg6 Ra6 Qh7 Rae6 fxe6 Rh4 Qg6 Rh8 Qh5 Bd6 Qh7 Bf8 Kf2 Ke7 b4 d5 c4 f5 b6 f4 b5 a4 c5 a3 b7 d3 b6 f3 Nd2 d4 Bb2 a2 Ne2 Qd5 Nc4 d2 Ne3 d1B Kg1 d3 Rb1 a1Q Ng4 d2 Nh6 Qb3 Nd4 Nd7 b8N Qba3 b7 Nb6 Nd7 Bb3 b8Q d1B Ba6 Bb7 Qc2 Ba8 Qc1 g5 Bc3 Bg7 Nf8 Bdc2 Qd1 Bf5 Qc8 Bh3 Bb7 Bf6 Kf2 Qc1 Re1 Qaa3 Kg1 f2+ Kh1 f1N Kg1 Ng3 Ba1 Qc4 Qc1 Qd5 Rb2 Qd8 Ndf5+ Ke8 e7 Nh5 Bc6+ Nd7 Kf1 Ba2 Rb8 Bd5 Bb7 Nb6 Re4 Bg7 Kf2 Ba2 Qh1 Bc4 Kg1 Ba2 Ng4 Kf7 Re1 Qd6 e8N Qd2 Nef6 Qdc1 Ne4 Bc4 Nd4 Bf6 e6+ Kg7 e7 Be6 e8N+ Kf7 Nd7 Kg6 N4d6 Be5 Nh6 Bf4 Ng7 Bd2 Nf8+ Kf6 Rd1 Ke5 Nge8 Kf4 Bb2 Ke3 Re1+ Kd3 N4f5 Bf4 Bf6 Be3+
1nbB1b2/b2pRrN1/r1p1R3/Q4K1b/b1PN2Q1/1N5b/P2P1N2/BkN3q1 w - - 0 2 illegal: No possible last move
K2B4/4bk1P/p3b3/2rBBNQ1/n1Q1bb2/1P4pR/RB4Pb/B1Nrnb2 w - - 0 1 illegal: No proof kernel
r4NR1/2Q2Pr1/1R3R2/1pK1Npp1/1Q1R3P/2b1B1k1/q2P2Bb/nn2Rb1r w - - 0 1 illegal: No proof kernel
Q1QQ1Nr1/1q3pQR/2b3nR/6K1/QPNP4/1Pn5/1n1bp1pr/1k1r2BB w - - 0 1 illegal: No proof kernel
Q2BBR1R/2P3np/2B1BN2/2Kr4/2n3Pk/1Nr2qr1/1p1p1PBb/2Q1n2b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 Ke3 e5 a4 d5 g4 b5 c4 b3 c6 b2 a5 b4 a6 b3 f6 Kg6 c5 e4 Kd4 e3 a7 e2 f7 e1N Nc3 b1R Rh5 b2 Nf3 Ng2 Nd2 Bf5 Nce4 Bh6 f8Q Nd7 Ra3 Ne1 c7 Ne7 c8B Nb6 c6 Nc2+ Kc5 d4 c7 d3 Bd7 Nc4 Ra2 Rb8 a8B Rb3 Bac6 Rc3 Nb3 Ra1 Bf4 d2 Ra8 Rg8 Be6 Qd3 Bg3 Bg7 Bh4 Be5 Qb1 Bh2 Qe8+ Kg7 g6 Rf8 Rg5 Kh6 g7 Rf6 Bf7 Rd6 g8B Bg6 Be6 Nf5 Bgf7 Rd8 Qg8 Ng7 Rf5 Qg3 Bh3 Qg2 Qh1 Rg1 Rf4 Qg3 Rf3 Rg2 Qc1 Ne1 Rf4 Rdd3 Qc8 Rd8 Qb7 Rd6 Rh8 Bf5 Bfe8 Rd5+ Kb4 Qe3 Bd8 Rg3 Qa8 Bg6 Rff8 Qd3 Nec5 Be4 Nd7 Bh1 Nf6 Kg5 Bf1 Kh4 Bg2 Rd6 Kb5 Qf3 Kc5 Rd5+
1R6/p1r1r3/BN1BprPQ/P1BR4/p3k3/b3b1nQ/q2P2bK/2B1B1nN w - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 exf5 g5 hxg5 d4 a5 d3 cxd3 Nf6 d4 Ng8 Qa4 bxa4 d5 Ba6 Rh4 Bb7 Rh1 Bc8 f4 c6 Kf2 Kd7 Kg3 Kd6 b4 h5 f6 e6 b5 Bg7 f7 Qe8 f8Q+ Qe7 f5 Ke5 b6 Qe8 b7 Bh6 d6 Nd7 b8B Qe7 f6 Nb6 f7 Nf6 Nc3 Nbd7 Ba6 Rh7 Nge2 Bb7 Rb1 h4+ Kh3 Kf5 Nd5 Ne5 d7 Nf3 d8B Qa3 Bd6 Rc8 g3 Ba8 Rb8 Nh5 Nb6 Qa2 Rh2 Rc7 g4+ Ke4 Ng3+ Kd4 Rf2 Ng1+ Kg2 Bb7 Rf5 h3+ Kh1 h2 Kg2 h1R Re5 Rh3 Nh1 Re3 Kh2 Rf3 Qg7 Rf4 Qf6 Bg7 Qh6 Ba8 Rb5 Kd3 B8e7 Bd4 Bf6 Bb7 Bfe5 Rf1 Bg3 Rf6 Be1 Ng3 Qh3 Be3 Rf5+ Qc4 Bc5 Rg7 f8B Rgd7 Bfd6 Re7 g6 Ba8 g7 Bb7 g8Q Ba8 Bc8 Qa2 g5 Bb7 B5a3 c5 g6 c4 Qg7 Bg2 Rd5+ Ke4 Qgh6 c3 Ba6 c2 Bcb2 c1B Bd4 Bb2 B4c5 Be5 Bc1 Bb2 Be2 Ba3 Bd3+ Kf3 Ba6 Ke4
1rBnN3/p1nRP3/N1BP3q/2r4Q/Bb1rR2P/B2pK1kB/3p2n1/3Q3b w - - 0 1 illegal: No proof kernel
qnB2R2/R1RQ4/1RP4p/1pB1N1q1/3rKR2/1P3P1r/pb1kNQ1n/b1q5 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 g5 h4 f5 exf5 b6 hxg5 Nh6 a5 Ng8 a6 Bb7 axb7 Qc8 Be2 Qc7 Bf1 Qd8 Ke2 Kf7 Kd3 e5 g4 a5 c4 d5 c5 e4+ Ke2 b5 b3 a4 f3 a3 f6 Kg6 f7 d3+ Ke3 d2 c6 Nh6 Bh3 Ra4 Ne2 Bg7 f8R Bb2 Rf4 Rd4 Qe1 d1Q Qf2 Qc2 Nd2 Qc5 Nc4 Qa7 Bd2 Qa8 Bb4 Qe7 Bc5 a2 Ne5+ Kg7 g6 Qg5 Rac1 Ba1 Rc4 Bb2 Qe1 Ba1 Ra4 Bb2 Kf2 e3+ Kg3 Ba1 Qf2 Bb2 Ra7 Ba1 Re4 Kf6 g7 Ke6 g8R Kf6 Ng1 e2 Rf4+ Ke6 Rd8 e1B Ne2 Bec3 Rdf8 Bcb2 Rg1 Re4 Re1 d4 Rd1 Kd5 Rd2 Qf5 g5 d3 g6 Rd4 g7 Ng4 Rd1 d2 g8Q+ Qf7 Rg1 d1Q Qg7 Nh2 Bc8 Qc1 Qg4 Qh5 Qh3 Nd7 b8R Qg6+ Qg4 Qg5 Rb6 Nb8 Rd1 Rg8 Rd3 Rg6 Re3 Rh6 Ree4 Rh5 R4f7 h6 Ref4 Rh4 Rfc7 Rh5 Qe1 Rh3+ Kf2 Qc2 Ke3 Qc1+ Qd2 Qh1 Qh4 Qc1 Qf2 Qb7 Rf5 Qa8 Ng3 Rd3+ Ke2 Qg8 Qd1 Rd2+ Ke3 Qg4 Ne2 Qg5 Bd4 Qc2 Rf8 Qc1 Bc3 Kc5 Bd4+ Kb4 Ke4 Rd3 Qdg1 Rd2 Qg4 Rd1 Qd7 Rd3 Ng3 Rd2 Bc5+ Kc3 Ne2+ Kc2 Qg4 Rd8 Qf5 Kd2 Qg4 Rd6 Qd7 Rd4+
k2rb3/r4p1B/q2q1p1B/BP1n1p2/Q1nRBNQ1/1b3r2/3N1PP1/2K3BR w - - 0 1 illegal: Other
1Nrr2bK/NN1R1pQ1/p1QpqB1P/2bn1q2/NP6/4B3/2b2PR1/2nN3k w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 e6 g4 Nh6 gxh5 Ng8 Bg2 Qc7 Bf3 Qd8 Bd5 exd5 Kd2 Ke7 Ke3 Kf6 Kf4 g6 c4 a6 e4 d4 b4 d3 h4 d2 b6 Nc6 e5+ Ke6 b7 Rh6 b8N Nd4 c6 Be7 c7 Nf3 c5 Kd5 e6 g5+ Kf5 g4 c6 g3 Ne2 g2 Rh2 g1Q Nbc3+ Kd6 Na4 Kd5 Rg2 Qf1 Nec3+ Kd4 Ra2 Bb7 c8Q Bd6 e7 Ne5 e8N Qa5 c7 Qc4 Qg1 Nf6 Nd1 Bc5 Nd6 Rh8 h6 Nd3 h5 Rd8 h7 Nd5 h6 Bc6 Nb7 d6 Rc2 Qab5 Kg5 Ke4 h8B Kf3 Bf6 Bd7 Rc3 Bf5 Qd7 Be4 c8N Bh7 Qc6 Bg8 Na7 Qe4 Rc4 Qe1 Re4 Qa5 Re8 Qe6 Re7 Qb5 Rd7 Rc8 Ndc3 d1B Be3 Bc2 Qa1 Nc1 Nd1 Rc7 Bd8 Qa5 Qg7 Rc8 Bf6 Qb5 Be5 Qd3 Bf6 Qdf5+ Kh4 Ke2 Qh8 Kf1 Be5 Qd3 Kg5 Rd8 Ba1 Nb6 Qd4 Qg4+ Kf6 Qge4 Kg7 Qe6 Kh8 Nd5 Qg7 Qdf5 Bf6 Rf8 Qb6 Rd8 Nbc6 Rac8 Nb8 Qg6 Rh2 Kg1 Rg2+ Kh1 Qc6 Qgf5
2KN1b2/2p3PP/Q1p1BnR1/r3pqBb/PN1rq2R/7N/2Qb2Nk/3N3n w - - 0 1 illegal: No proof kernel
RR1b1rNR/4n1b1/2PNQQ2/q2b1r2/5p1P/3KP1k1/Bpn3p1/b3R1BR w - - 0 1 illegal: No proof kernel
1nNR1n2/6BP/1R2nbrQ/1Rr1q1B1/1p1p4/nK2pR2/3P1Pk1/1Q1R1N1b w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 c4 Kf7 h4 Kf6 h6 Ke5 h5 Kf4 h7 a5 f6 g5 f7 d5 c5 e5 c6 d4 h6 a4 c7 a3 Ne2+ Kf3 Nbc3 a2 Na4 g4 Rh3+ g3 Ba3 e4 Qb1 e3 Kd1 Qg5 Kc2 Nf6 Be7 b4 Kb3 Rg8 h8Q Bg7 f8B Kg2 h7 Bg4 c8R Qe5 Rd8 Nfd7 Bg5 Bf6 Qg7 Ra5 Qh6 Rg6 Bg7 Bf5 Qb2 Rb5 Rd1 Rc5 Qc2 Nf8 Qb1 Na6 b8R Be4 b7 a1N+ Kb2 Bd5 Nb6 Nc2 Nc8 Bc6 Kb3 Na3 Rh4 Bf3 Rf4 Be4 Rf3 Bc6 Ra8 Nb8 Ra6 Nbd7 Bh4 Kh2 b8R g2 Rf4 g1N Bg5+ Nh3 Ng3 Bh1 Rf3 Kg2 Nf1 Nf4 Rb5 Nb8 Rab6 N4e6
b2N1N1N/1Rr1N1Np/pQRP2b1/p1P1b1r1/5n1k/Q6B/2b2KBP/4n1q1 w - - 0 1 illegal: No proof kernel
2qbN1N1/1kr1p1p1/7K/n2rQ3/3B2Pp/nB2P1NR/2PN1NRr/2b3Qr w - - 0 1 illegal: Other
R3q1b1/1pP3Rn/1N1rnP1Q/5R2/1k1pn1B1/1pNRQP2/3B1Rn1/2r1b2K w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 e5 h4 Ke7 a4 d5 f3 g5 Kf2 d4 Kg2 b3 a5 g4 a6 e4 c6 Kd6 h6 Kc5 c7 g3 h7 e3 f6 e2 a7 Ne7 h5 Bf5 c8R+ Nbc6 h6 Ng6 Ra2 Qc7 Qe1 Bg4 Rh5+ Nge5 Kh1 Qd8 Rf5 Be7 Nc3 Kb4 c5 Nd3 Bh3 Qe8 Bd2 Nd8 c6 Nc5 c7 Rg8 h8Q Ne4 h7 Ne6 Qf2 e1N Qe3 Bh5 Bg4 Bf7 Nh3 Ng2 Nf4 Rg5 Ra1 Bg8 Rd1 Rb8 a8R Bf8 Rfa5 Rc5 Rd8 Bh6 Rd7 Rd8 Rg7 Rd6 Ra2 Rcc6 R8a5 Bg5 Rf5 Bh4 Rc2 Ra6 Rb2 Ra1 Ra2 Rc1 Nfd5+ Kc5 Nb6+ Kb4 Re7 Ne1 Rg7 g2+ Kh2 g1N Kh1 Ng2 Rc2 Bf7 Qf8 Bf2 h8R Be1 Ra2 Bg8 Rh2 Ngf4 Rf2 Ng2 Raa5 Nh3 Ra8 Bh7 Qh8 Bg8 Qhh6 Nhg5 Ra3 Nf8 Ra8 Rc2 Bc1 Ngh7 Rd3 Ne6 Bd2 Rc1
3RNr2/4pB1p/NnB3rR/nr2kp1P/1QnqP3/1K1QNbN1/P3q3/1N6 w - - 0 2 legal: proof: g4 d5 f4 a5 b4 d4 bxa5 d3 Bb2 Qd6 Bf6 gxf6 cxd3 Bf5 d4 Na6 d5 Bg7 g5 Bh6 g6 Nb8 Qc1 Bc8 Qd1 Bg5 fxg5 Qd8 h4 Kd7 d4 Kd6 Kd2 c5 Kc3 b5 e4 b4+ Kb3 f5 a6 f6 g7 f4 a7 f5 g6 f3 Qd3 f2 Ne2 Qd7 Ng3 Nh6 g8N Qd8 g7 Ba6 Nf6 Ng4 g8N Ne5 Nh6 Nbd7 Nhg4 Rf8 Ne3 Nc4 Qd2 Rc8 a8B Ndb6 Bc6 Ra8 Be2 f1Q Bh5 Qe2 Bf7 Rg8 Rd1 Rg6 h5 Qd7 Qc3 Rf8 Qd3 Kc7 d6+ Kd8 Nd2 Rg7 d5 Qh2 Qb1 Na5+ Kc2 c4 Rg1 c3 Ngf1 Be2 Ne8 Nac4 Rg6 Bf3 Ng3 Qe2 Rh6 Rg6 Qb2 Kc8 Rd1 Qd8 d7+ Kb8 d6 b3+ Kb1 c2+ Ka1 c1N Qd4 Ne5 Kb2 Ncd3+ Ka3 b2 Qa4 b1R Qa5 Rb5 Qb4 Re6 Kb3 Rg6 Nb1 Nec4 Rd2 Nc8 Rd1 Qb6 d8N Qa7 d7 Nc5+ Kc3 Qb6 Ne6 Nb7 d8Q Qc5 Qd4 N8b6 Kb3 Qd5 Nc5 Kc8 Nf6 Kc7 Qd2 Kd6 Na6+ Ke5 Ne8 Qd6 Qc2 Qc5 Rd8 Qd4 Qd3 Nba5#
1N1r1K2/qNQ5/4R2p/PQ2bP1n/p3qk1B/1r1BN1pb/P2N4/R2Nbr2 w - - 0 1 illegal: No proof kernel
2q5/2QN2B1/1N4p1/pqRBBk2/Qnn2B1p/Pn2P1P1/3R3K/1qrb1bB1 w - - 0 2 legal: proof: e4 e5 c4 d5 exd5 b5 Nc3 bxc4 Nb1 a6 Qc2 e4 Kd1 e3 Qb3 e2+ Kc2 Ra7 Kc3 Ke7 Qd1 Ra8 Kc2 Ke8 h4 g6 h5 a5 h6 Qd6 Kc3 Ra6 Kd4 Rc6 Ke3 Bg7 hxg7 Qd8 Kf3 Re6 Kg3 Re3+ fxe3 Nc6 Kf2 Nb8 b4 Kd7 Kg3 e1N d4 h5 d6 Ke6 d7 c5 a3 f5 b5 f4+ Kh2 c3 b6 h4 b7 c4 d5+ Ke5 d6 c2 Ra2 c3 Bb2 c1Q Nf3+ Ke6 Bc4+ Kf5 Nbd2 c2 Be5 Qe7 d8B Na6 b8B Nb4 d7 Qf7 Bg5 Rh5 d8B Qd5 Bdf6 Nh6 g8Q Qb1 Qg7 c1Q Qa4 Nec2 Qc7 Nf7 Bg7 Qb5 Bd5 Nd6 Nc4 Na1 Rd2 Nb3 Nb6 Nc4 Rhd1 Be6 Rc2 Rh8 Rdd2 Rc8 B5h6 Nb2 Rc5 Nc4 Bd6 Bf7 Ne5 f3 Bf4 f2 Ned7 f1B Bde5 Be8 Bg3 Qcc2 Bf2 Qc3 g3 Bf7 Bb7 Bd5 Ba8 Bf3 Bg1 Bd1 Bf4+ Qe5 Bd5 Qe8 Qb7 Rc6 Bbe5 Qc8 Qc7 Rd6 Bc6 Rd3 Bh1 Rc3 Bd5 Rc1
1nQ1QB1K/k1p2p1R/2qq2N1/B2B1b2/n1B4b/1pPqRPBP/2rb2N1/8 w - - 0 2 legal: proof: d4 a5 g4 b5 a4 h5 gxh5 e5 dxe5 b4 Nf3 Ra6 Ng1 Rb6 b3 Rb5 axb5 a4 Qd4 axb3 Qd6 Qf6 Qd1 Qd8 Kd2 d5 Ke3 Kd7 Kf4 g5+ Kf5 b2 e4 d4 e6+ Kd6 c3 Kc5 e5 Kb6 f3 b3 h6 d3 h7 g4 Bh6 d2 Bc4 g3 Nh3 g2 Nf4 g1B Na3 b1Q+ Nc2 Bb4 Bf8 Qd6 Ng6 Bb7 e7 Qd4 e8B Qd8 e6 Qd6 e7 Be3 Bc6 Qc1 e8Q Bf4 Ne1 Qd8 Ng2 Nf6 B6d5 Rg8 h8B Nh7 Be5 Ng5 Rb1 Be3 Bg3 Be7 Ke5 Ka7 b6+ Ka8 Qc2 d1Q Qf5 Bd2 Qc8 Ne6 Re1 Bh4 Re3 Bc6 b7+ Ka7 h3 Bd7 Ra1+ Na6 Ra4 Nc5 Ra5 Na4 b8B+ Kb6 Rc5 Bf5 Ra5 Qd7 Rc5 Qcc2 Rc6+ Ka5 Ba7 Qd3 Rd6 Qc6 Bc5 Be6 Bb4+ Kb6 Ba5+ Ka7 Rd8 Rg7 Rd6 Bf5 Rf6 Be6 Rf5 Rg8 Rh5 Bf5 Rh7 Nb8 Ne7 Rg5 Ng6 Qd7 Kf6 Qc6+ Kg7 Rg4 Re5 Re4 Kh8 Re2 Be4 Qdd6 Bed5 Qb1 Re3 Qd3 Kg7 Re1 Kg8 Rc1 Kh8 Rc2
1BB2QRQ/1B1bKB2/1b2RN1n/1Np1p3/2Pp4/1BP3q1/1n1Pb3/3rbkn1 w - - 0 2 legal: proof: e4 a5 h4 g5 hxg5 b5 e5 Ra6 c3 Rc6 b3 Rc4 bxc4 f6 Qb3 fxe5 Qc2 a4 Qxa4 e4 Qc2 Nc6 Qd1 Nb8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kd5 Kf4 a4 e5 g4 h5 g6 b4 g5 e3 g7 b3 a5 d6 a6 b2 a7 e2 a8B e1B g6 h4 Bd3 h3 Nf3 h2 Ng5 Rh3 Rg1 h1N Ne4 Bd7 Ra6 Bf5 Bc2 Qd7 Bb3 Bg4 Bb7 Be2 Na3 Kf3 Nf6 b1B Nb5 Ng3 Ba3 Nh6 g8B Qg7 Ke6+ d5 Bf7 Nc6 Bd6 d4 Qc2 Qg8 g7 Rh1 Qh7 Be4 Rb6 Nb4 Qh8 Nd3 Ra6 c5 Bb8 Bd6 Kd7 Bc7 Ke7 Nb2 Re6 Bb6 Rg2 Qh7 g8B Qg6 Bh7 Qg4 Bf5 Bc6 Rg1 Bf1 Rg2 Ke2 Rg1 Qh4 f4 Bd7 Bg4+ Kf2 f5 Ne2 Bh3 Qf4 Rg8 Qg4 Bhg2 Qh3 Bc8 Ng1 Bgb7 Qg3 Nh5 Nh3 f6 Be2 Bg6 Rf1 f7 Ng1 Rc6 Kg2 f8Q Bf2 Bf7 Rd1 Re6+ Kf1 Nf6 Be1
2bbr3/1q1q2k1/B3B3/R2P2B1/4Bp2/Q2BpPp1/N1R1PQ1b/b1rKNn2 w - - 0 2 illegal: No possible last move, all moves rejected
1Q3nR1/p1rpR3/2N2nPn/3P3q/2nR4/1R2BqQN/1p1R2P1/1K1b1kbB w - - 0 1 illegal: Other
6r1/QQpP3K/1B2pQqR/5Q2/3N1P1q/1B1nnbR1/1Qp1PN1k/3b2bb w - - 0 1 legal: proof: g4 d5 c4 dxc4 b4 a5 bxa5 g5 h3 f5 gxf5 b5 h4 g4 Rh3 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Be6 Rh5 Bd7 Rh1 Bc8 a4 Kd7 d4 Kd6 Kd2 h5 Ke3 b4 Ke4 h4 f4 h3 a6 h2 d5 g3 g6 c3 a5 g2 a7 b3 a8Q b2 a6 Bb7 a7 Rh5 f6 Rf5 g7 Qe8 f7 Qd7 Nh3 g1Q Na3 b1B+ Qc2 Rf6 Nb5+ Kc5 Nf2 Rg6 Bg2 Qg4 Nd4 Na6 Ra3 Nb4 Be3 Qh4 Kf5 Nd3 d6 Bf3 d7 Nf6 g8Q Ng4 Qh7 Rg8 Qb2 Bc2 Qab7 Bd1 a8Q c2 Qaa7+ Kc4 Qg7 e6+ Kg6 Bc5 f8Q Bb6 Qf5 Bc5 Bd2 Ne3 Ba5 Bb6 Qh5 Bc5 Kh7 Bb6 Qf6 Bc5 Bf1 Qgg3 Bb6 Qgg4 Rg1 h1B Rg3 Qgg5 Bg2 Qgg4 Qb1 Qgg5 Ra5 Kc3 Ra3+ Kd2 Qb2 Ke1 Rb3 Qf5+ Rg6 Qfg5 Rh6 Qgg4 Qhf5 Qgh5 Bh3 Q5g5 Bg4 Kf1 Bh3+ Kg1 Bg2 Kh2 Ra3 Bg4 Bd5 Bgf3 Bb3 Nf1 Nb5 Nb4 Ne4 Bh5 Ba4 Bg1 Rg3 Nd3 Bb3 B5f3 Nf2 Ne3 Nd4 Qg6+
4k1bN/2p1B1b1/2bQ1Q1N/1K2PB2/4PQ2/1RP1nQn1/1pbpQrb1/2R3r1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 Bh6 g4 Qf6 h4 Ra5 g6 Qe7 g7 Be3 g5 Bc5 g6 Qg5 hxg5 Bf8 Bb2 Ra4 Bc1 Ra8 Kd2 d5 Kd3 f5 a4 b5 c3 h5 a5 d4 a6 f4 a7 f3 Nd2 b3 Ba3 h4 Rc1 h3 Nc4 f2 Be7 h2 Nf3 b4 Bh3 f1B Nh4 b2 Bf5 b3 Ne3 b1B+ Kc4 d3 Ng4 d2 Kb5 Rh5 Nh6 Nf6 g8Q Bh3 g7 Be6 g6 Bd5 Qh8 Rg5 g8Q Nc6 g7 Ne4 Ng6 Bc2 Qe6 Na5 g8Q Rg1 Qhf6 Bg2 Qd6 Nc4 Nh8 Ne3 Qgg5 Bg7 Qf4 Ng3 Qe1 Rd8 a8Q Bg8 Qaf3 b2 Ra1 Rf1 Ra3 Rf2 Rg1 h1B Rb3 Nc4 e3 Ra8 Qee2 Ra1 Rc1 Rb1 Q3g4 Bc6+ Kb4 Bhg2 e4 Ne3 Qgf3 Bd3 Rc2 Re1 Rc1 Rg1 Ka5 Bc2 Kb4 Bb7 Kb5 Bc6+
B1qk1B2/4Np2/K1Q1nPb1/2p1pP2/1q1bBRq1/1B2P3/1rR3b1/1N1bQB2 w - - 0 1 legal: proof: c4 b5 g4 d5 b4 dxc4 h4 g5 f4 a5 bxa5 Nc6 f5 Nd4 f6 Nf5 gxf5 g4 Rh3 Nh6 Rh2 Rg8 Rh3 Rg5 hxg5 Ng8 Rh1 Qd4 Nh3 Bb7 Qb3 Kd8 Bg2 Nh6 Nf4 Bg7 Qc2 Kd7 Rg1 Rh8 Qd1 Bf8 Bf1 Ke8 Nh3 Ng8 Rh1 Bc8 Ng1 Qd8 a4 c5 d4 e5 Kd2 h5 Kc3 g3 a6 g2 d5 h4 d6 h3 g6 h2 g7 Qd7 a5 Bb7 a7 Bc8 a8B Ba6 Ra4 Qc8 d7+ Kd8 Bh6 Ne7 g8B Nc6 Nf3 g1Q Qe1 Nd4 Be4 Qg4 Bh7 Ne6 Bg6 Rg8 Rg1 h1B Bh5 Bg2 Nh4 Rh8 Ng6 b4+ Kc2 b3+ Kc3 b2 Ne7 Bb7 a6 Bd5 a7 Bg7 Bd2 Bh6 a8B Be3 Ra2 Bf2 Bh6 Rh7 Bf8 Bd4+ Kc2 c3 Kd3 c2 e3 Bb7 Kc4 c1Q+ Kb5 Qd2 Ra4 Bf3 Rg2 Bd1 Kb6 Qb4+ Ka7 Ba6 Rc2 Bb5 Kb6 Bbe2+ Ka7 Qg7 Bhf3 Qg4 Bad5 Rh2 Bb3 Qg8 B3g2 Bh5 Ba8 Qg4 Bge4 Qc7+ Ka6 Bg6 Rf2 Rg2 Rf4 Rf2 Ra2 Qcb8 Na3 b1B Rc2 Ba2 Nb1 Rg2 Ba4 Bd5 Bb3 Kc7 Bb7 Qc8 d8Q+ Kb8 Qe8 Kc7 Qc6+ Kd8 Rc1 Rb2 Rc2 Qc7 Ba8 Qcb8 Bed3 Bg2 Be4 Qc8+
1N1bQq1N/bp2N1N1/p2N1p2/r1r2Q2/2b2PRK/P3rB2/1P1R2qr/kB6 w - - 2 3 illegal: No possible last move, all moves rejected
1R1B4/2n1B2p/p3P2P/1N3b1b/r1Q1n1BB/RBrp3Q/b2kPK1p/3qN3 w - - 0 1 illegal: No proof kernel
1B1K1bQ1/r4pb1/R1pQP1B1/4N1p1/p4P1N/1Pqnk1r1/3N1NR1/r2n2N1 w - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 g4 hxg4 a4 Ba6 axb5 Bb7 Kd2 Bd5 Ke1 Bb3 cxb3 Be7 Ra6 Bc5 Ra1 Bf8 Kd2 Ke7 Ke3 Ke6 Ke4 g5 h4 a5 h5 d6 h6 g3 b6 c6 h7 g2 b5 Qe7 b7 Bg7 b6 Nd7 b8Q Bh6 b7 Qf8 Nd2 Ne7 Rh2 Rg8 h8N Nb6 Ng6 Bg7 Nh4 Ra6 f4 Nc4 Bb2 Qc8 e3 Nf5 Bd3 Re8 Ba3 Ke7 e6 Kf6 e7 Ne5 Bb2 Rd8 e8N+ Ke6 Bc2 Ra7 Nf6 Nd3 Be5 Re8 Ng4 d5+ Kf3 d4 Ke4 Qd8 Nf2 Qf6 Bb1 Re7 Qg8 Re8 b8N Bf8 Ngh3 g1B Nd7 Rea8 Rg2 Rd8 Kf3 Kd5 Bb8 Re8 Ne5 Kc5 e4 Ne3 Qe2 Nd1 Kg4 Qh8 Kf5 Re6 Ra4 Ree7 Rb4 a4 Rb6 Re6 Ra6 Rh6 Nhg6 Rh4 Qf3 Rg4 Nh4 Rg3 Qh5 Qg7 Qh6 Qh8 Nfg4 Bf2 Ng1 Be1 Nf2 Bg7 Ndc4 Bb4 Nd2 Ba3 Nef3 Bb4 e5 Kd5 e6 Bbf8 Qg6 Qh5 Ne5 Qf3 Qf6 Qe3 Qe7 Qe1 Ndf3 Qc3 Qb4 Nc5 Qa3 d3 Nd2 Kd4 Bc2 Ke3 Qb4 Nb7 Qd6 Nc5 Ndf3 Bh6 Kf6 d2 Bg6 Nd3 Qg7 N1b2 Qg8 d1R Nd2 Ra1 Bh5 Ra8 Bg6 Bfg7+ Ke7 Ra7+ Kd8 Nd1 Nhf3 Bf8 Nh4 Bhg7
2RbrB1r/q5pp/Rp3N2/2RP2q1/5k1P/nP2N1RR/Q1bn1p2/2K3QB w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 f5 a4 b6 a5 Qd6 a6 Qc6 g4 exf4 gxf5 Qb7 axb7 Bd6 Qb3 Bb4 Qd1 Bf8 h4 Kd7 e4 Kd6 d4 a5 Kd2 c5 b3 f3 f6 f2 e5+ Kd7 e6+ Kd6 f7 c4 e7 a4 e8Q a3 Nc3 a2 Qee2 Ra6 Bg2 Nh6 Ba3+ Kd7 d6 Ra8 d5 Na6 b8R Nb4 Kc1 Nc2 Rh3 Ng4 Ne4 c3 Bh1 Nh2 Nf3 Nf1 Nh2 Ba6 Rc8 Nd2 Rc5 Be7 f8R Re8 Nf1 Bd3 Ne3 Bd8 Bb4 Na3 Rff3 Bc2 Rfg3 Reg8 Qg1 Re8 Rb1 a1Q Qa6 Qa2 Ra1 Nab1 Qe2 Qa7 Ra6 Na3 Rca5 Kc8 d7+ Kb8 Nf6 Kc7 Rc5+ Kd6 Raa5 Ke5 Ra6 Bc7 d8R Kf4 Rc8 Bd8 R5c6 Be4 Bf8 c2 Rc5 Bg6 Kb2 c1Q+ Ka2 Qf1 Kb2 Qg2 Kc1 Bc2 Qed1 Be4 Qc2 Bd3 Qa2 Bc2 Rg5 Qg4 Rg6 Qf5 Rgg3 Qg5
k1r3rr/N1Qn2R1/2p1QB2/2b2p2/6pQ/b1p2PPb/K1N1QP1Q/2qB2R1 w - - 0 2 legal: proof: c4 d5 h4 dxc4 a4 b5 axb5 g5 Qc2 g4 Ra2 Nc6 Qd1 Nd4 Ra1 Nf3+ exf3 Qd4 Ra2 Qf4 Ra1 Qg5 hxg5 Bg7 Qa4 Bh6 Qd1 Bf8 d4 Kd8 Kd2 h5 Kc3 f5 b4 a5 Kb2 e5 b6 c6 b7 Kc7 b8Q+ Kd7 g6 c3+ Ka2 h4 d5 h3 b5 h2 g7 e4 d6 a4 b6 a3 b7 e3 Ne2 Nf6 g8Q Ra6 Nd4 e2 Nc2 e1B Rg1 h1R Be2 Ra8 Bg5 Bd2 Qe6+ Kd8 d7 Bc5 Qe1 Rg8 Qh2 Bc1 g3 Kc7 d8Q+ Kb8 Bd1 Nd7 Q1e2 Bb2 Bf6 Bc1 Kb3 a2 Nba3 Bb2 Nb5 Bba3 Rb1 a1Q Rb2 Qc1 Ka2 Be3 Na7 Bec5 Qg2 Rh4 Qh2 Rhh8 Qde7 Bab4 Qeh7 Ba3 Q7h4 Ne5 Qe4 Be7 Qf7 Bec5 Rb6 Be6+ Rb3 Bc4 Qe6 Bf1 Qe2 Bh3 Rb4 Bf8 Rd4 Bfb4 Rd7 Bc5 Re7 Nd7 Rg7 Kc7 Qe1 Kb6 b8Q+ Ka6 Qf4 Kb7 Q1e2 Rac8 Qc7+ Ka8
1N1NBb2/NK1Qp1qn/2rRP3/1B6/1pp3Pq/k1PN1r2/pR1Nn1Q1/r7 w - - 1 2 illegal: No proof kernel
2Kn1BqB/1N2r2B/3P1QR1/1k3N2/2r3bp/pB1QpP2/PB2p1q1/3R2rn w - - 0 1 legal: proof: g4 b5 e4 g5 c4 d5 cxb5 f5 h4 Bh6 gxf5 dxe4 Nc3 g4 Nb1 Bg5 hxg5 Kf7 Bc4+ Kf8 Bf1 Ke8 Ke2 Kd7 Ke3 h5 Kf4 a5 Ke5 c5 d4 h4 b4 g3 g6 a4 f6 e3 d5 c4 f3 e2 g7 a3 f7 e6 b6 g2 b7 Qf8 b5 Kc7 b6+ Kd7 Nc3 Nh6 g8B Nf5 Bb2 Rh7 Nb5 Ra7 Nd6 Rg7 Bh7 Qg8 f8B Ng3 Qb3 Rg6 Rd1 Rg4 Rh3 Nh1 Rg3 Nc6+ Kf6 Rg7 b8Q e5 b7 e4 Qa8 Rg4 b8B Nd8 Qc3 Rc7 Qa6 Rg5 Nb7 Rg7 Nh3 g1R Ng5 Re7 Nf7 e3 Rg6 Rg5 Nfd6 Rh5 Qd3 Rg5 Bh3+ Rg4 Ba7 Rc6 Bad4 Kc7 Be5 Rg1 Be6 Rc5 Kf5 Bd7 Bh8 c3 Rh6 Qg2 Rg6 c2 Kf6 c1Q Bf7 Bg4 Nf5 Bh3 Qe6 Rc6 d6+ Kb6 Qe5 Bg4 Bb3 Qc4 Qec3 Re4 Qe5 Rc8 Ke7 Qg8 Kd7 Rcc4 Qg7 Kb5 Qf6 Nc6 Kc7 Re7+ Kc8 Nd8+
N7/1r1r3R/p1QBpP2/RB3n2/2NB1q2/P2QPpk1/1Kpq1n2/B2br1B1 w - - 0 2 illegal: No proof kernel
1n1k4/p2pr1N1/5nQ1/2p5/R1BQ1RQB/P1PK2n1/PqpQ3N/q2Qrb2 w - - 1 2 illegal: No proof kernel
B4N2/4r1K1/R1n2pQ1/3n2p1/pbkNr1R1/P2RP1B1/2pbRPnR/Q4b2 w - - 1 2 legal: proof: d4 a5 g4 b5 b4 h5 gxh5 e5 dxe5 a4 c4 bxc4 Qd3 Qf6 Qd4 Qa6 Qd1 Qa5 bxa5 Rh6 Qd4 Rh7 Qd1 Rh8 Kd2 Ke7 Kc3 Ke6 Kd4 g5 h4 d5 a6 c6 a3 c3 h6 c2 h7 Nd7 a7 Bb7 h5 Bc8 h6 Bd6 Rh4 Nb6 Bg2 Rb8 a8R Rb7 Ra6 Nc4 Nd2 Rb3 Ngf3 Ne3 Ne4 Bb7 Rg4 Bb4 Qd3 Ne7 Nf6 Re8 h8Q Rb2 Bd2 c1B h7 Rb3 Bc3 Bd2 Qg6 Rb1 Qhg7 Re1 h8R Ba8 Bh1 Ng2 Rd1 Bb7 Rh2 Bc8 Kd3 d4 Nh7+ Kd5 e6 c5 Nf8 Nc6 e7 Be6 Rg3 Bh3 Rg4 Nh4 Qh8 Bf1 Ba1 Ng2 Qhg7 Rc8 e8R Rc7 Bb2 Re7 Bc1 Bdc3 Bf4 Bd2 Bg3 c4+ Kc2 c3 Kd3 Rd7 Q7f6 Kc5 Ke4 d3 Kf5 c2 Qa1 Re7 Nd4 Kc4 Kf6 Re4 Kg7 f6 Rd8 Bdc3 Re8 d2 Rb1 d1N Rb3 Bd2 Rd3 Nc3 e3 Rb1 Rd8 Bc1 Rd2 Nd5 Re2 Bcd2 Nde6 Ndf4 Rd3 Nd5 Nd4 Be7 Qh5 Rb7 Qg6 Beb4+ Nd7 Re6 Kh7 Nde7 Nf5+ Nd4 Ra7 Nh4 Kg7 Rc7 Ba8 Re4 Ra5 Ng2 Ra6 Ndc6 Nf8 Ra7 Nd4 Nd5+ Kg8 Rae7 Kh8 R7e6 Kg7 Re7+
1Q2r3/2R5/1pbn2Bb/6B1/kn3NKp/prRr1P2/pBN3PP/Q1B2n1B w - - 0 1 illegal: Other
1K1k4/bBnB2Bp/3QBp2/p1r1nQ2/1P1p3P/P1N1Bb2/bq2RpN1/5R2 w - - 1 2 illegal: No proof kernel
3R1r1B/2n1b3/p1NP4/BrQPQN1n/k1B4p/p1B4p/1R3p1P/1bK1Bb2 w - - 0 1 illegal: Other
2QnbR1N/k3qPp1/1pK4n/p3N1n1/2NBp1P1/R4q2/1bN1P2p/1B3Q1N w - - 0 1 illegal: No possible last move
4K1R1/PNp2BQr/BB1Nr1n1/4Bp2/2qqb1B1/n1P2P1Q/nrk1q3/2b3R1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 Qh4 Ba3 Qf6 Bc1 Qd8 Kd2 Ke7 Ke3 Ke6 Ke4 g5 h4 b5 a4 f6 f3 b3 c3 b4 a5 b2 a6 g4 h6 g3 h5 d6 a7 g2 h7 b3 h6 Qd7 Na3 b1R Qd4 b2 Nc4 Qb5 Na5 Qa4 Be3 Bg7 Nb7 Qa3 Nh3 g1Q Nf2 d5+ Kf4 f5 Ne4 Qb4 Ned6 Qg2 Rg1 Nc6 Ra4 Qh2+ Kg5 Qc4 Kg6 Nb4 Bh3 Qg2+ Bg4 Na2 Bf2 Bf6 e4 Bg5 Kg7 Be3 Kf8 Bc1 Ke8 Rb8 Be3 Qge2 Rb4 Ra1 Rb3 b1N Rb2 Qed3 Rbg2 Qe2 Na5 Qb3 Kf8 Qeb2 Bh3 Ne7+ Rg8 Na3 Bg4 Bd2 Bf2 Rb4 Be3 Ba6 Nab7 Re1 Bf2 Bc1 Be3 Kd7 e6+ Kc6 Qg7 d4 e5 d3 Bb6 Kd5 Kf7 Ng6 e7 d2 e8B d1Q e6 Re2 e7 Re6 Bb5 Qd4 e8B Qg2 Bf1 Bd3 Be2 Be4 Ba6 Ne7 Kf8 Qe2 Bf7 Rb5 Ke8 Qbb4 Nc8 Kc4 Ncd6+ Kb3 Rf8 Rg8 h8Q Kc2 h7 Qbc5 Qg6 Rg7 Rg8 Rb2 Qh6 Rg5 Qh3 Rh5 Qf6 Rh6 h8B Qcc4 Qg6 Rh4 Be5 Rh7 Qg7 Ng6+
b5N1/pN2N3/b1Q1NBqp/1nPrr1b1/2Q2bRP/P2B1Kbn/6R1/2q1N2k w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f5 g4 fxg4 bxc5 Kf7 Nd2 Ke7 Nb1 Ke8 h4 Ke7 c4 Ke6 e4 b5 Ke2 g5 f4 d5 a3 h6 c6 d4 c5 g3 c7 d3+ Ke3 d2 Be2 g4 Bf1 b4 Be2 b3 Qe1 d1B Qf1 g2 Rh3 g3 Bb5 b2 Rh2 Nf6 Nd2 b1Q Bb2 Na6 Nc4 Nh7 Na5 Bf3 Nb7 Be7 Bd3 Re8 Qe2 Ng5 f5+ Kd7 e6+ Kc6 f6 Nh3 e5 Kd5 f7 Qd6 f8N Qc1+ Qd2 Be4 Nf3 g1B+ Rf2 g2 Ne1 Bf6 e7 Bh2 e6 g1B Ke2 Bhe5 Rg2 Be3 Qb4 B3f4 Rg4 Bg3 Ra2 Bef4 Qa4 B6g5 Bf6 Rd8 e8N Qb6 e7 Bg2 Bg7 Qg6 Nf6+ Ke5 Qc4 Rd5 Ne6 Rb8 Na5 Bb7 c8N Nc7 e8Q Nb5 Qc6 Ba6 Ne7 Re8 Nb7 Be4 Nc8 Re7 Ng8+ Kf5 Nc7 Ree5 Bf6 Bh2 Rg2 Bhg3 Nce7+ Kg4 Ra1 Nf2 Ne6 Kh3 Rg1 Kh2 Rg2+ Kh1 Rb1 Bf5+ Kf3 Nh3 Rbb2 Bh2 Rg4 Bhg3 Nd4 Bd7 Ne6 Bc8 Na5 Bcb7 Rg2 Ba8 Nb7 Qg7 Qc7 Qh7 Qc6 Qg6
2nN1r2/q3Q3/1R1pB1n1/nbNPb1pk/qNN2QrB/1P4P1/1qn4K/2R2N2 w - - 0 1 illegal: No proof kernel
1n2k3/Rp2b1pN/6R1/bPn3Pb/2R3R1/n1QP1Q1K/1BRrq2N/1B2br1q w - - 0 1 illegal: No proof kernel
rR1nN2R/pB1bR3/r2pQ3/RP1Qb1nR/1N6/K1BP4/Pq2bk1b/4qq2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 c4 bxc4 hxg5 Ba6 Bd3 Bb7 Bf1 Bc8 g4 Kf7 f4 h5 b4 c5 f6 Ke6 g6 Kd5 g5 Kd4 f7 e5 g7 h4 f5 d6 g6 h3 f6 e4 Ne2+ Kd3 Nbc3 h2 Bb2 e3 Ne4 c3 Nd4+ e2 Nc6 c4 Bg2 Nh6 g8R c2 g7 c1B b5 c3 Nb4+ Kd4 Qb3 Be7 f8R Nc6 f7 Bf6 Re8 Qb6 f8R Bd7 Rb1 Be5 Qe6 Nf7 Re7 Rh3 Rb8 Ncd8 Nf6 Qc7 Rf8 Qc4 Bb7 Qb3 Rh8 Rf3 g8Q Ng5 Qh3 Rd3 Ba1 Qc4 Rb2 c2 Ne8 Ra3 Rb3+ Qc3 Qf7 Ra5 Ra3 Ra6 Nd5 Ke4 Ra5 Qc4 Bc3 Qb3 Rf1 h1B Rf2 Qb1 Rh2 Bf3 Qh6 Bfg4 Rh5 Qb4 Qg8 Kf3 d3 Bcf4 Qhg6 Bh2 Kd2 Qb1 Nb4+ Kf2 Qd5 Qf1 Qge6 Qh3 Kc1 e1Q+ Kb2 c1Q+ Kb3 Be2 Ka4 Qhf1 Kb3 Qb1+ Ka3 Qb2+
k5N1/1pbR1BQn/1P4Pq/2Kb1R1Q/p4n2/PbRR4/3bRr1n/N1nr2B1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 Ke2 Kd7 Kd3 e5 Kc4 h5 g4 a5 d4 c5 f4 Kc7 b4 a4 f6 e4 f7 e3 a3 e2 d6+ Kb6 g5 Ka7 d5 e1N b5 h3 f5 h2 d7 h4 d6 h3 f6 Na6 g6 Nc7 Nc3 Nd5 Nge2 Nd3 Ra2 N5f4 Be3 Nc1 b6+ Kb8 Rg1 h1B Nd5 h2 Ne7 Bd5+ Kb5 h1N Nd4 c4 Re2 c3 Nb3 c2 Kc5 Bh6 f8R Nf2 f7 Nf6 Na1 N2g4 Ng8 Nh2 Rg3 Nh7 Bg1 Qh4 d8R Bg5 d7 Qh6 Rb3 Bh4 Rc3 Bg3 Bg2 Bb3 Bd5 Ra5+ Kb4 Ka8 Be6 Re5 Bc4 Re3 Kc5 Rf3 Qd5 Rf2 Qh5 Ng5 Rfe8 Nh7 f8Q Rf3 Qg7 Rf2 Bf7 Bd5 Nf6 Rf8 R8e5 Rf1 Rde8 Rd1 d8R Bb3 Rdd3 Bd5 R8e7 Bce6 Rdd2 Bb3 Rdd7 Bed5 Rf5 Be6 Rg2 Bed5 Be8 Nh3 Ng8 N7g5 Rd2 Nh7 Rdd3 Bc7 Rg5 Rf2 Bf7 Nf4 Ree3 Na2 Rge5 c1B Rf5 Bd2 Re2 Nc1
1Rb1R1Q1/nn1N1NQp/3QP2q/6p1/1q2kBPp/b5n1/r1rQ3P/1B1Q2Kb w - - 0 1 illegal: Other
1n3rk1/bp1PK1pR/Bn2R2r/2p1r2n/2Pq1QPR/Bb6/3QN3/N2R1Rq1 w - - 0 1 illegal: No proof kernel
K1QR1Rq1/4b1k1/ppNQ2p1/rP1q1n1Q/b2N2Q1/P1bB1rnP/5BqQ/8 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 c4 d5 cxd5 Be6 Nf3 Bd7 Ng1 Bc8 Ke2 Kf7 Ke3 e5 Ke4 c5 f4 a6 b4 b6 d4 g3 b5 c4 d6 g6 Kd5 e4 h3 e3 f6 c3 a3 e2 f5 e1B d7 c2 Ne2 g2 Nbc3 g1Q Be3 c1Q Na2 Ba5 Nb4 Qg4 Nc6 Qe8 d8Q Qb1 Qd7+ Qe7 Bf2 Qg5 Qc7 Bh6 Qh2 Kf8 f7 Qb2 Qa4 Bd2 Rd1 Bc3 Qb4 Kg7 f8Q+ Kh7 Qf6 Qe8 Qfe5 Bf8 f6 Nh6 f7 Be7 f8Q Nd7 Qf3 Qg2 Qh5 Qd2 Qbd6 Nc5 Rg1 Ne4 Qfg4 Kg7 Rh1 Qe3 Rd3 Qeg3 Rf3 Rb8 Rf8 Bf5 Rg1 Qh1 Rg2 Qf3 Rg3 Qfg2 Rd3 Ra8 Qd7 Rg8 Rf6 Rd8 Na5 Kh8 Kc6 Rf8 Kb7 Qgg1 d5 Kg7 d6 Ng3+ Nc6 Qf7 Rd5 Qg8 Qc8 Bc2 d7 Qe4 Rdd6 Qgg2 Ka8 Qee6 Rf3 Rf4 Rd4 Rdf8 d8Q Re4 Rd6 Ra4 Ned4 Qd5 Bd3 Ra5 Qdc7 Rf7 Rd8 Ba4 Qd6 Rf8 Rf5 Rf7 Re5 Rf4 Rf5 Rf3 Rff8 Nhf5
Bq5N/Qnq3Rr/Rpn1Bb2/1np2b2/K4Bp1/2Pr2P1/1Pq1N1B1/2QBk3 w - - 2 3 illegal: No proof kernel
1K2Nq1r/p1pR1nn1/2P1Q1nk/2Q3Nb/1B1q1Pr1/4brp1/P1BR3N/4N1N1 w - - 0 1 illegal: No proof kernel
2K4n/Rp2q1Qp/B2B2nB/r3p1q1/qb2Q2P/1P1N4/2PNr2b/1RBk2Bb w - - 0 1 illegal: No proof kernel
b4Bk1/BNQ2R1p/1pp1nB1K/N1nPbn2/7B/2Qrp1q1/2PnP2R/4rB2 w - - 0 1 illegal: No proof kernel
kq3Nn1/npq1pR1n/3NRNp1/8/1K1NrQPr/2Q2pB1/Bn2PP2/4b2N w - - 0 1 illegal: No extended proof kernel
1b2N2Q/8/rQ1r4/1P1qP3/1k2BKPR/qB4Qq/1RR1p1b1/1N1bR3 w - - 0 1 legal: proof: c4 c5 b4 d5 cxd5 g5 a4 b5 h4 a5 hxg5 Bf5 bxa5 Bh3 Ba3 Bc8 Bb4 cxb4 axb5 Be6 Nh3 Bf5 Ng1 Bc8 d4 e5 d6 Ne7 f4 Bg7 d7+ Kf8 e4 Bh6 d5 Kg7 Qc2 Kg6 Qd1 Bf8 d6 Nd5 exd5 e4 Bd3 Nc6 Bf1 Ne5 fxe5 Qc7 Qf3 Qb6 Qd1 Qd8 Kd2 Kf5 Ke3 h5 g6 f6 a6 h4 a7 h3 g7 b3 g8Q h2 Qg3 b2 Nf3 Rh3 Bc4 Rh6 Bb3 Be7 Re1 h1Q Ng5 Qh3 Qd4 Qa5 d8Q Qa3 d7 Bd6 Rc1 Bb8 Qh8 Bb7 d8R Qh1 Nc3 b1B d6 Bc2 d7 Bd1 Nf7 Bd5 Rab1 Ke6 Rc8 f5 Kf4 e3 d8R e2 Nd6 Qh3 Rb2 Qh1 Kg5 f4 Qb6 f3 Nb1 f2 R8c2 f1Q Rdc8 Qf3 R8c4 Qh3 Ne8+ Bc6 Rd4+ Qd5 Kf4 Rh7 Ke3 Rd7 Rh4 Rd6 Kf4 Bb7 Rc4 Qdc5 R1c2 Kd5 R4c3+ Kd4 Rf3 Bd5 Rf1 Bf3 Re1 Kd3 Qh2 Qd5 g4 Bg2 Ba4 Qc3 Qg3+ Kc4 Bb3+ Kb4 Ra2 Qa1 Rab2 Bc7 Qb7 Qa3 Qb6 Rad8 a8B Bb8 Bc6 R8d7 Ba8 Ra7 Bb7 Ra6 Bc6 Qe6 Be4 Qd5
3RB3/2Qn2r1/QBN3B1/bRNnPnb1/2KP1r2/4Pk2/3B1pr1/5Rq1 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 a4 h5 gxh5 a5 f4 Ra6 fxe5 Bb7 axb5 Ra8 b4 Ba6 bxa6 axb4 h4 Kd7 h6 g5 a7 c5 d6 Ke6 h5 Kf5 h7 Kg4 d7 f5 h6 f4 e3+ f3 Ra5 b3 Qe2 b2 Rb5 c4 Nc3 b1N Na4 c3 Nc5 c2 d3 Qc8 d8B Be7 Bb6 Nd7 Bd2 c1B Bg2 Rb8 a8B Nc3 Be4 Nd5 Bg6 Rb7 Qf1 f2+ Ke2 Bd8 Nf3 Nge7 Nd4 Rf8 h8R Rf4 h7 Nf5 Nc6 Qa8 d4 Qa1 Kd3 Bb2 Qe1 Bc3 Qc1 Ba5 Rf1 Ra7 Bh3+ Kf3 Kc4 g4 Re8 g3 h8Q g2 Qh6 Bg5 Rd8 g1R Be8 Nh4 Bf5 Rg2 Qd6 Rb7 Bfg6 Nf5 Qa3 Bc3 Qa6 Ba5 Rh1 Qg1 Qc7 Qh2 Rf1 Qg1 Qb8 Nf8 Qc8 Rg7 Qc7 Nd7
1r2q1B1/1P1NR2P/3B1rp1/k3q1Q1/6N1/Br1b2N1/nBP2QKq/2bR4 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 axb6 c5 d4 cxd4 a4 f4 a5 f3 a6 Nc6 exf3 Rh7 f4 Na5 f5 Nb7 axb7 Rh8 b8N e5 h4 d5 f4 g6 Kf2 e4 h6 d3 f6 e3+ Kg2 d2 b7 d4 f7+ Ke7 h7 Kd6 h5 Kc5 h6 Kb6 f5 d3 f6 e2 Nd7+ Kb5 Nf3 e1Q Nfe5 Ra3 Nc3+ Ka5 Ng4 Qde8 Ne2 Ne7 Ng3 Qe5 Rg1 Bg7 f8Q Nd5 f7 Nc3 Qf3 d1Q Qf6 d2 Qg5 Rg8 h8B Na2 h7 Bh6 Bc4 Rb3 Ba3 Qb1 Rh1 d1R Re1 Rd6 Bd5 Qbb2 Rad1 Rf6 Bg7 Qb8 Re7 Qc3 Qe5 Bc1 Qg5 Rc6 Be5 Rf6 Bad6 Qa1 Bb2 Qc7 Qg7 Qb8 f8B Qc7 Qf7 Rh8 Nb6 Bf5 Nd7 Bd3 Bda3 Ra6 Qf2 Rf6 Bg8+ Qe5 Bd4 Qc3 Bd6 Qd2 Bb2 Qf4 Bda3 Qd2 Rg7 Qe2 Bfd6 Qd2 Re7 Qf4 Nf5 Qh2+ Kf3 Qc8 Bd5 Qh4 Kg2 Qg8 Ng3 Qge6 Rf7 Rb8 Rg7 Qg8 Re7 Qe8 Bg8 Qh2+
4N1kN/1r1q4/3nPK1Q/1p2n1rr/P2B2rR/5RQ1/3bPBNB/1qB5 w - - 0 1 legal: proof: g4 a5 f4 e5 fxe5 b5 c4 d5 cxd5 h5 gxh5 b4 b3 a4 bxa4 Qd6 Bg2 Qd7 Bf1 Qd8 Bh3 b3 a3 b2 Bd7+ Ke7 Bb5 Bd7 Bc4 Bb5 axb5 c6 a4 Kd7 b6 Ke8 Bb5 cxb5 Kf2 g5 Kf3 f5 h4 Kf7 d4 g4+ Kf4 g3 b7 g2 h6 Qd6 Kg5 f4 h5 f3 e6+ Ke7 h7 f2 h6 f1Q Nd2 b1R Nh3 Qc7 d6+ Ke8 d7+ Ke7 d8B+ Ke8 d5 Qc8 d6 Qc2 Ne4 Na6 b8B Nb4 Bf6 Qe1 Bd4 Qed2+ Nf4 Ra7 d7+ Ke7 Nd6 Nc6 Qg1 Ne5 Ra3 Rb7 Rh4 Nf6 Ne8 Rb4 Rf3 Qb1 Qf2 g1R+ Qg3 Bg7 d8B+ Kf8 B8b6 Ne4+ Kf5 Bf6 Ng2 Bg5 Bf2 Qdd3 Bbd4 Bd2 Bc7 Nd6+ Kf6 Rc4 Bb8 Rc5 Bc7 Rg8 h8Q Rd5 Qh7 Rg4 Qg6 Rh1 h7 Rh2 h8N Rc5 Qh6+ Kg8 Bg1 Rh3 Bh2 Qh7 Bb6 Qd7 Rh5 Rh4 Bf2 Rg5 Ba7 Rcc4 Bad4 Rhg4 Rh3 Rh5 Rh4 Rgg5 Bde3 Re4 Bd4 Reg4
1NBqk2K/1r1bP3/1p1p1b2/BQ1n4/5QR1/2n2b1r/1N2PBP1/N1R1N3 w - - 0 1 illegal: No proof kernel forced: bxLB
2R1q1bR/NrPpp2b/Q1n2B2/QP4R1/2p4n/3Q4/2N1P2K/1qk3BQ w - - 0 1 legal: proof: f4 b5 a4 g5 axb5 h5 fxg5 a6 g4 Rh6 gxh5 Rc6 b4 Ra7 b6 Rb7 b5 Rh6 Bg2 Ra7 b7 Ra8 b6 Rh8 c4 c5 Bc6 Bh6 Bb5 axb5 Kf1 b4 Ke1 Ra5 d3 Rb5 cxb5 c4 d4 Bg7 Kf2 Be5 Kf1 Bd6 Ke1 Bc5 dxc5 Rh7 Nh3 Rh6 Ng1 Rh8 Kf1 f5 Kg2 Kf7 h4 Ke6 c6 Ke5 g6 Ke4 g7 f4 h6 b3 c7 b2 h7 f3+ Kh2 f2 h5 f1Q h6 Nc6 b8Q Ne5 b7 Qff8 Be3 Nf6 g8R Ng6 Qa7 Qg7 b8Q Ne8 Qbb7+ Kf5 Qba6 Ke4 Nf3 Nh4 Bg1 Nd6 Na3 b1B Nc2 Qg6 Nfd4 Bb7 Nc6 Nc8 Qd3+ Kf4 Qa8 Qde8 Na7 Bd5 Ra5 Qf5 Rg5 Rf8 h8B Bg8 h7 Rf6 Bf2 Rb6 Bf6 Rb7 h8Q Qe4 Bg1 Qh7 Nc6 Na7 Ra2 Qf5 Qa5 Nc8 Q8a6 Na7 Nd8 Nc6 Ra1 Nb8 Nc6 Qfg6 Na7 Nc6 Qh5 Qgf7 Kh3 Nd8 Qb4 Qg7 Nc6 Rb6 Ne1 Rb8 Qaa3 Qeg6 Qc2 Nf3 Bc3 Rb6 Bf6 Q7h7 Qa8 Bf7 Qb7 Bg8 Ra8 Qhf7 Na7 Nc6 Qa5 Qe8 Qba6 Rb7 Rc8 Qd3 Qh7 Qb3 Qcg6 Be4 Nc2 Qb1 Kg2 Bd3 Rh6 Bf5 Qh5 Bd3 Qh1 Nh4+ Kh2 Bf5 Qg6 Bd3 Bc5 Bf5 Rh8 Bd3 Nd4 Ke3 Qf5 Be4 Qd5 Beh7 Qf5 Qb4 Nc2+ Kd2 Bg1 Kc1 Qd3 Qb1
bNB3QK/3b1p2/2N1N2p/R4QB1/2Bb1q2/PR2p1Pq/2n1BkP1/n7 w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 c5 dxc5 g5 b4 g4 e4 g3 hxg3 axb4 e5 b5 f3 h6 f4 Ra6 Qa4 Rd6 exd6 e5 Qd1 e4 Rh3 Rh7 Rh1 Rg7 Bd3 Rg5 Bf1 Re5 fxe5 Bh3 Kf2 Bd7 Ke1 Bc8 Kf2 Kd7 Ke3 b3 Kf4 b4 Kf5 b2 e6+ Ke8 c6 b3 d7+ Ke7 c7 Kd6 e7 Kc5 e8B Qe7 d6 Ba6 c8B Bb7 d8Q Nd7 Bg5 e3 Be2 Ngf6 Qf1 Kd4 Nd2 b1Q+ Ne4 b2 Nh3 Qc1 Nc5 Ba8 Nf4 Qc4 Na6 Bg7 Nb8 Nc5 d7 Nd5 Ne6+ Kc3 a3 Kd2 Rh5 Nb3 Rb1 Bd4 Qf4 Qec5 Qe5 Nb4 Kf6 Qb6 Kg7 Na1 Kh8 Nbc2 Qef6 Bc5 Qf5 Qf4 Qc7 Qa5 d8N Bd4+ Qce5 Qc7 Ndc6 Qa7 Qg7 Qd7 Bd1 Ke1 Be2+ Kf2 Bc4 Qa7 Bed7 Qc7 B8a6 Qa5 Bdc8 Qe1 Be2 Qh1 Bad3 Qh3 Bc4 Bb6 Qg8 Ba7 Rd1 b1B Rd5 Ba2 Rb5 Bb3 Ra5 Ba4 Rh4 Qg4 Rh1 Qh3 Rb1 Bb6 Rb3 Bc5 Na7 Bd7 Nac6 Bd4+
QQ3r2/RrNB1np1/4K2R/P4Pp1/P2k4/3N2p1/1b1N1b1r/2B1Q1Nr w - - 0 1 illegal: Other
4kbr1/1Q1pbr2/1NP1R3/4BQ1p/KPp3b1/N2P1bN1/R3N3/B2B3r w - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 a4 b5 axb5 f5 exf5 Bh6 Ba3 Bg7 Bc1 Bf8 c3 c5 Ra2 a4 Ra1 Nc6 bxc6 Qa5 bxa5 Nf6 Ra2 Nd5 Ra1 Nb4 cxb4 Ra6 Bc4 Ra7 Bf1 Ra8 g4 e5 f4 h5 a6 a3 g5 h3 g6 e4 g7 h2 g8N e3 d3 a2 f6 e2 Kd2 e1R Kc3 Re3 Kb3 c4+ Ka4 Bh6 f5 Rf3 f7+ Kf8 a7 Bb7 Be2 Re3 Qf1 Re5 Nf6 Rd5 Bd1 Re5 Bf4 Rd5 Be5 Rc8 a8N Re8 Ne2 Ba6 Nb6 Rg8 Na3 Rd4 Qf4 Re7 Re1 h1B Ne4 Bf3 N4g3 Re4 Qe3 Rh4 Qc5 Rh1 Qb5 Bc8 Qa6 Bb7 Qa7 Ba6 Qb7 Bg4 Rc1 a1B Rc2 Bd4 Ra2 Bc5 Ba1 Re6 Be5 Rf6 Ba1 Ke7 f8B+ Ke8 Bd6 Rf7 f6 Bf8 Bc7 Bce7 Bce5 Bb5+ Ka5 Rfg7 f7+ Kd8 Rf1 Ba4 Rf6 Bc2 Re6 Bb1 Bb3 Bc2 Ka4 Bd1 Ng1 Bdf3 Bd1 Bf6 N1e2 B6e7 Kb5 Rh7 Ka4 Bg7 Bc2 Re8 f8Q Bh6 Qh8 Rf7 Qh7 Rg8 Qf5 Bhf8 Bd1 Ke8
k4BR1/3pnb2/3NPnp1/1pB2pb1/2R4P/Bn2qP1N/2R2QQK/4B3 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nc6 g4 Rb8 gxh5 Ra8 Qd2 Rh6 Qa5 Nb4 Qa2 Rb6 Qd5 Rbb8 Qd1 Nc6 b4 a5 b6 Nd4 b5 c6 b7 Qh4 b6 Qd8 Bg2 Ra7 bxa7 Nb5 axb8B Nc3 Be4 Na2 Bd3 Ke7 Ba6 Ke8 Bb5 cxb5 Kf1 f5 Kg2 a4 c4 g6 h4 a3 e4 Nc3 f3 a2 e6 Qc7 e7 Qb6 h6 Ne2 e5 Qc7 c5 Nd4 h7 Ne2 h8B Nd4 c6 Bg7 Kh2 Nb3 Qd2 Qd8 c7 Nh6 Qf2 Nd4 Ba3 Ng8 Nh3 Nf6 Ba7 Nb3 b8B Ba6 c8R Ne4 Nd2 Na5 Rhc1 Nf6 R1c4 Nc6 Rac1 a1N B7c5 Bb7 Ne4 Nb3 Bbd6 Bh6 R1c2 Bg5 Ra8 Qb8 Bg7 Qc8 Bf8 Qd8 Bb8 Qa5 Qg2 Qe1 Qf2 Qe3 Qg2 Kf7 Nd6+ Ke6 e8Q+ Kd5 Qd8 Ne7 Qb6 Bc6 Bc7 Bb7 Qa7 Kc6 Ba5 Qc3 Re8 Qe3 Be1 Kc7 Qa6 Bd5 Qa7+ Kc6 Ra8 Bf7 e6 Bg8 Bh6 Bf7 Rg8 Qc1 Bf8 Qe3 Qa8+ Kc7 Qd5 Kb8 Qdd2 Ka8 Qde2 Qd3 Qef2 Qe3
1nR1Nq2/4BP2/N1r4n/1P4r1/N2K1RN1/QqPQ3r/BR1b4/b2kq1b1 w - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 d5 Kd3 Kd7 b4 Kd6 b6 Ke5 b7 a5 f6 h5 c3 a4 b5 a3 f7 a2 g7 h4 g6 h3 g5 h2 Na3 Nh6 g8Q Ra6 g7 Rc6 Rb1 a1B g6 e6 Rb2 Bc5 Be3 Qf8 Nh3 Rh7 Rg1 h1R Nf2 Rh5 Rg4 Rg5 Nc4+ Kf5 Qd2 e5 Nb6 Rh8 Na4 e4+ Kc2 Ke5 Rf4 d3+ Kb3 d4 Kc4 Rh7 Qd1 d2 Ng4+ Kd6 Qh8 d3 g8R Ke6 Bg1 e3 g7 e2 Qc2 Bb6+ Bc5 d1Q Kd4 d2 Qd3 e1B Bg2 Qb3 Bd5+ Kd7 Bc4 d1Q Bd5 Bd2 Bc4 Qe7 Rc8 Qde1 g8N Qf8 Qg7 Qa3 Ba2 Qb3 N8f6+ Ke6 Ne8 Rh8 Re4+ Kf5 Qg8 Bc7 Be7 Bh2 Re5+ Kf4 Re6 Nd7 b8N Bg1+ Re3 Rh7 Na6 Nb8 Qg7 Ng8 Qgg6 Rh3 Qe6 Nh6 Qd6+ Re5 Qa3 Rg5 Qb1 Bh2 Re5 Kf3 Rf5+ Ke2 Qd3+ Kd1 Rf4 Bg1+
4n1Q1/qP1R1b1r/3R4/NR4bk/PN1bQ1rq/RPB5/K3n1q1/2BQn3 w - - 0 1 legal: proof: e4 b5 c4 a5 cxb5 f5 exf5 d5 g4 h5 gxh5 a4 Qxa4 Ra7 Bc4 Ra8 Qa7 dxc4 Kd1 Kf7 Kc2 g5 h4 e5 a4 e4 f4 g4 d4 c3 Kb3 e3 f6 g3 f5 g2 d5 c2 h6 e2 b6 e1B d6 Ba5 b7 c5 h5 c4+ Ka2 c3 b3 Qc7 h7 Bg7 h6 Bd7 Ne2 g1Q Nd2 Qf2 Qe3 Qb6 Rd1 Bc6 d7 Bf3 d8R Na6 Qe4 Qg2 Nc4 Nc5 R1d6 Nd3 Nf4 Bh5 Nd5 Qa7 Nb4 Bc7 Na5 Ne1 Qe2 Bb6 Qd1 Bf8 R8d7+ Be7 Ba3 Bd4 Bc1 Kf8 f7 Nf6 Bf4 Ne8 Bc1 Rg8 h8B Rg4 h7 Bg5 Be5 Rc8 Bf6 Rc7 Be5 Bf6 h8R+ Kg7 Rg8+ Kh7 f8Q+ Bf7 Qe7 Bg5 f6 Kh6 Qe6 Kh5 Qd5 Be6 Qe4 Bd5 f7 Be6 f8Q Bf7 Bb2 c1Q Bf4 c2 Bc3 Qe3 Qg7 Qee2 Bc1 Qef2 Rf8 Qh4 Qg8 Bc4 Rf5 Bd5 Rd8 Rh7 R8d7 Bc4 Rb5 Bf7 Kb2 Qb8 Ra3 Qa7 Bf4 c1N+ Ka1 Ncd3 Bc1 Nf4 Kb1 Ne2 Kb2 Qgh3 Ka2 Qg2
1Q3q2/8/QP6/1bb2RbB/rn3B1B/1b1PP1RN/k4n1r/b1QNrQK1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Kd7 h4 Kd6 b6 Kc5 h6 Kc4 h7 c5 a6 g5 a7 f5 h5 f3 h6 f4 d6 g4 d7 g3+ Ke1 g2 Kf2 Na6 Bb2 Bg7 Ra2 Nf6 Ra5 Qf8 d8B Nb4 Be5 Be6 Qc1+ Kb3 Nc3 c4 Nd1 c3 Nh3 c2 Kg1 Ne4 Bh4 Nf2 Bb8 Bg8 Rf5 Ka2 Bc7 Bb3 Rh2 Rg8 h8Q Ba1 h7 Rg5 Qe5 Rh5 h8Q Rh6 Qe8 Rh7 Qf6 Rh8 Nb2 Rh5 Qb8 Rh8 Qe1 c1B Nd1 Bc4 Qc6 Nh1 Bhd8 Bf7 Ng5 Bb3 Rh3 Rh5 Rg3 Rh7 Qh6 f2+ Kh2 g1B+ Kg2 Rd7 Nh3 Rd4 Bh4 Rc4 Kf3 Rc2 Bg2 f1R+ Qf2 Re1 Qf1 Bgd4 Qc6 Bcb2 e3 Bbc3 Qcc4 Bc5 Bd6 Bg7 Bc7 Rb2 Qc1 Bh6 Bd6 Bg5 Bc7 Nf2 Bh1 Ng4 Kg2 Rc2 Kg1 Rb2 Bc6 Rc2 Be8 f3 Bf4 f2+ Kg2 Rb2 Bh5 Rc2 Qb5 f1B+ Kg1 Rb2 Qe2 Rc2 Qf3 Bfc4+ Qf1 Bb5 d3 Rh2 Qd6 Nf2 Qc7 Rb8 a8Q+ B3a4 Qab7 Ra8 Qcb8 Bb3 Q7c8 Ra5 Qa6 Ra4
RB2BN2/2r4Q/P3Qnq1/1rP3BB/1Q4nb/5n1k/RPN2b2/2n2Kbn w - - 0 1 legal: proof: e4 c5 g4 f5 exf5 a5 a4 b5 axb5 h5 d4 hxg4 dxc5 Ba6 bxa6 Rh7 Nh3 Rh5 Ng1 Rh8 f4 Kf7 c4 Kf6 h4 e5 c6 d5 c7 g5 c8B e4 c5 e3 h5 e2 h6 a4 h7 d4 Nf3 d3 Kf2 e1N Ra3 g3+ Kg1 d2 Rh5 g4 Ne5 g2 Bd7 Nf3+ Kf2 Nc6 Ng6 Rc8 Ra2 a3 Qa4 Qb6 Be2 g1B+ Kf1 d1N Be8 g3 Qb4 Be7 Nf8 Nf2 Rh2 Rc7 Rg2 Nh4 B2h5 Nh1 Rd2 Be3 Rd8 Bf2 Ra8 Ne5 Be3 Ng4 Bc1 Kg7 f6+ Kh6 f7 Qg6 f5+ Bg5 f6 g2+ Ke2 g1B Kf1 Nf3 Bf4 Rb7 Bb8 Rb5 Bf4 Ne7 Bb8 Rg8 h8B Bgh4 Bg7+ Kg5 Bh6+ Kf5 Bg5 Rg7 Ra1 a2 Na3 Bh2 Nc2 Rh7 Ne6 Bhg1 f8Q Rf7 Qh8 Nd5 Qh7 Rc7 f7 Ndf6 f8Q Ne1 Qd6 Nf3 Rd1 a1N Nf8 Nb3 Ra1 Nc1 Ra2 Ng8 Bd8 N8f6 Qe6+ Kg5 Qbe1 Kf4 Qb4+ Kg3 Be7 Kh3 Bd8 Ne4 Bg5 Nf6
R1KR4/3R2PN/1n2bQb1/2N1N1n1/3NbqPk/b3r2P/QBr3n1/B6r w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 e6 a4 Nh6 axb5 Ng8 d4 Kd7 d6 h5 e3 h4 d5 h3 Bc4 Be7 Qd3 Bf8 Qh7 Ke8 d7+ Ke7 Bb3 Kd6 Ba2 Ke5 d6 Nh6 Nxh3 Ng8 Bd5 exd5 Ng1 Ke6 Ke2 f5 Kf3 c5 Kf4 a5 g4 c4 b4 a4 g6 Kf6 h3 d4 e4 d3 g7 a3 e5+ Kf7 b6 c3 e6+ Kf6 e7 a2 b5 c2 b7 d2 b6 d1B Na3 Bf3 Nb5 Qc7 d8Q Nd7 b8B Nh6 b7 Nf7 Qg8 Ng5 Nd4 Be4 Bb2 c1N Ngf3 Nb6 Rd1 Be6 Ne5 Ra3 d7 Re3 Ba7 Rh6 b8N Rh5 Na6 Qc4 Rb1 a1R Nc5 Rh8 Nf7 Kg6 Ke5 f4 Kd6 f3 Kc7 f2 e8N f1B Nf6 Bfd3 Nh7 Ne2 Ne5+ Kh6 Rd2 Nf4 Qf6+ Bg6 d8R Be4 Ra8 Ng2 Rbd1 Qf1 Rd3 Qf4 R1d2 Rh1 Kb8 Bc8 Qa2 Be6 Rd1 Nd5 Ba1 Bd6+ Kb7 Rc8 Bb6 Rc6 Ba5 Bf8 B5c3 Nb6 Bcb2 Be7 Ndf3 Bf8 Rdd8 Be7 R1d7 Bf8 Nb3 Ba3 Nfd4 Rcc1+ Kb8 Rc2 Nc5 Nf3 Qf5 Rcc1 Qf8 Rc2 Nf6 Kg5 Nh7+ Kh4 Qf6+ Ng5 Kc7 Nd5+ Kc8 Nb6+
1r6/1N1kb1b1/3r2Bn/N2PrbN1/3b2RP/2q1R2P/1Q1B1QK1/Rn2q2N w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 h5 c4 a5 g3 d5 cxd5 h4 gxh4 axb4 a4 Nh6 axb5 Ng8 d4 g5 f4 c5 Kf2 e5 h3 g4 f6 b3 f7+ Ke7 d6+ Kd7 d5 e4 b6 g3+ Kg2 b2 b7 c4 f5 e3 f6 c3 Bd3 c2 Nd2 b1R Ndf3 e2 Bd2 c1B Qc2 e1Q Qb2 Nh6 Ng5 Nc6 Ne2 Bg7 f8R Qa5 f7 Rb8 Re8 Nd4 f8Q Nb5 Qf2 Qc3 Bg6 Na3 Re3 Re8 Rf1 Re5 Rg1 Kd8 d7 Kc7 d8N Kd7 Qa2 Rb6 Qb2 Nb1 Nge6 Rd6 Ng5 Ra8 b8N+ Kc7 Ra2 Bf5 Nbc6 Rb8 Na5 Kc8 Ndb7 Kd7 Qa3 Bb2 Ra1 Bc1 Qb3 Ba3 Qb2 Bb4 Kf3 g2 Ng3 Ba3 Nh1 Bc5 Rf1 g1B Kg2 Bh2 Rg1 Bb6 Kf3 Bd4 Rg4 Bf4 Ne4 Bg5 Kg2 B5f6 Ng5 Be7
1BQb2N1/R5rR/n2rr3/P1Q2BP1/R3P2N/1Qrk1Kn1/qR4b1/2b4q w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 g4 c5 a4 h5 d4 b5 e4 f5 a6 c4 d6+ Ke6 g6 h4 d7 h3 g7 h2 a7 c3 a5 b4 Kf3 b3 Ra4 f4 Bh3 c2 Nc3 b2 Nd5 b1R Ne7 Nh6 Ng8 Ba6 g5+ Nf5 Qd2 Rb7 Qg2 Qf6 d8Q Be7 Qf8 Bd8 Qc5 Rh6 Bd2 c1B d5+ Kd7 d6 Ke6 d7 Qf7 Be1 Bf1 Bg3 Na6 Bg4 Rab8 a8R Rc8 Ra7 Rc6 Bh3 Rd6 Bg4 Bc7 d8R Rg6 Rda8 Bd8 Rb8 Re7 Kf2 f3 Rb2 Rf6 Nh6 Rg6 g8Q Rg7 Bf4 Bb6 Qb8 Bd8 Ng8 Rc7 Qcb4 Rc3 Qc5 Qb7 Bg3 Qb3 Bf4 Qa2 Qb3+ Rc4 Bh5 Ng3 Bg6 Rd2+ Ke3 f2 Nf3 Rdd7+ Rd2 Rd6 Nh4 Bd3 Kf3 f1R+ Rf2 Rd1 Rc2 Bf1 Rb2 Rc6 Bh7 Rdd6 Ra8 Kd7 e6+ Kc7 e7 Rc3+ Be3 Kd7 e8Q+ Kc7 Bf5 Re6 Qcb6+ Kd6 Ra7 Ke5 Qd7 Rcd6 Qc8 Rc5 Qbc7 Rc4 Bd2 Kd4 Bc3+ Kd3 Be5+ Rc3 Qc5 Rc6 Rg1 h1Q Bb8 Qh2 Rh1 Rcd6 Ng6 Qg1 Rh7 Qh1 Nh4 Bxg2+
2R3QK/rq2QBQr/Q1NbR2P/4bn1B/1P1n1n2/1r1PnN2/4k2q/7R w - - 0 1 illegal: No possible last move
2R1n2N/B2Pk3/rQ1RbR1N/7q/1n2r3/1Rr2P1n/r1Q1b1P1/qKB4N w - - 0 1 illegal: No possible last move, all moves rejected
4b2b/5QRn/1B3b1K/1bPn1P1N/4PQ1Q/1BbR2r1/1N2q3/qQq1k1N1 w - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 axb5 a5 g4 h5 gxh5 f5 Be3 e5 Bc1 Ra6 f3 Re6 exf5 e4 Qd3 e3 Qd1 Re4 fxe4 Qg5 Ra3 Qe7 Ra1 Qd8 Ke2 Ke7 Kf3 Kf6 Kf4 g5+ Kg4 Ke5 c4 d5 h4 a4 b4 a3 b6 a2 b7 e2 c5 e1B h6 d3 Kh5 Kd4 h7 d2 b5 Ke3 b6 Kf2 Qg4 d1B Bf4 d4 Rh3 d3 Na3 d2 Bc4 Ba4 Rd3 d1Q Bc7 Qd4 Bb3 Bcd7 Nc4 Be7 Nb2 Na6 b8Q Bc3 b7 Qe2 Qa7 Nf6+ Kh6 Bab5 b8Q Rg8 h8Q Nb4 h5 Be8 Bb6 Nh7 Qbb7 Nd5 Qf4+ Qf3 Qbb8 Bf6 Qf7 g4 Rad1 a1Q R1d2+ Ke1 Rg2 g3 Qbb7 Bd8 Qhf6 Rg7 Q6h4 Qe2 Qa7 Qde3 Nf3+ Kf1 Qfg5 Qae1 Qa2 Bd4 Qgf4 Qa1 Qb1+ Qc1 Rh2 g2 Ng1+ Bf2 Rhh3 Rg8 Rhg3 Ke1 Rg6 Nhf6 Kg5 Be7 h6 Rg7 h7 Bd8 h8N Nh7+ Kh6 Bf6 Qe3 Bc3 Rg3 Rg5 Qf3 Bfd4 Ng6 Bf6 Nf4 Bh8 Nh5 Bcf6 Nh3 g1B Qff4 Bgd4 Ng1 Rg4 Qh3 Bc3 Rg2 Rh4 Rg7 Rg4 Qh4+ Rg3
2n1qR2/3b4/k1n1R1b1/PN5r/1P1Bq2B/P2QbK2/nnN1R1n1/1Q3RB1 w - - 0 1 legal: proof: g4 a5 e4 f5 exf5 h5 gxh5 b5 b4 d5 Bc4 dxc4 bxa5 b4 c3 b3 Ke2 Ra7 Kf1 Rb7 Ke1 Rb4 cxb4 Qd7 Qf3 Qd5 Qd1 Qd8 Ke2 Kd7 f4 Kc6 d4 Kb7 h4 g5 f6 c5 d5 e5 d6 e4 f7 e3 a3 g4 f5 g3 d7 b2 h6 g2 h7 c3 h5 c4 f6 c2 h6 c3 Nf3 g1Q Ne1 Bg7 f8Q Qe8 d8B Bd7 f7 Qg5 Kf3 e2 Qfd6 Nc6 f8R Qge5 Q6d3 Nge7 Be3 c1N Rh2 c2 Nc3 b1B Bg1 Nc8 Nb5 Ka6 Bh4 Na2 Rf2 c1N Nc2 Bf6 Rf1 Bg5 Re1 Rg8 h8R Be3 h7 Rg5 Rhg8 Rh5 h8B Nb8 Rg6+ Nc6 Qd5 Nd3 Re6 Nb2 Q5d3 Qd6 Bd4 Qe5 Rf1 e1N+ Ke2 Ng2 Kf3 Nc3 Qe1 Ba2 Rd1 Bb1 Rd2 Na2 Re2 Nb6 Na1 Bc2 Qb1 Nc8 Qdd1 Bh7 Qdd3 Bg6 Nc2 Qe4+
n1b2R1R/2q2R1q/1Pqbb1r1/B1N3P1/N1Q1Q1QR/B4q2/K5qP/4n1k1 w - - 0 1 legal: proof: f4 d5 d4 Kd7 e4 b5 a4 g5 fxg5 Nh6 axb5 Ke6 c4 Qe8 cxd5+ Kd7 d6 Ke6 d7 Ng8 d5+ Ke5 d6 Ke6 Qa4 Qd8 Qb3+ Ke5 Qd1 Ke6 g4 h5 g6 Kf6 g5+ Kg7 Qa4 a5 Qc2 Ra6 Be2 Rc6 Bg4 Rc5 Qd1 Rd5 exd5 hxg4 Kd2 c5 Kc3 f5 Kb3 e5 b6 g3 b7 a4+ Ka3 f4 b4 e4 b5 c4 b6 e3 Nh3 g2 Ng1 e2 Be3 e1Q Bc1 c3 Ne2 g1Q Ka2 c2 Bd2 c1Q Nd4 f3 Bc3 f2 Ba5 f1B Qh5 a3 Qe2 Qh4 Qe5+ Nf6 Qe4 Qc6 Nb3 Nh5 Nc5 Nf4 Nc3 Ng2 Qg4 Rh6 N3a4 Na6 b8R Qdc7 d8B Ne1 d7 Bd6 Be7 Bh3 d8Q Qh5 Qe4 Qf3 Qd7 Be6 Rc1 Qgg3 Rf1 Qgg4 Rc4 Qgg2+ Ka1 a2 Rd4 Kg8 g7 Kf7 g8R Rg6 Rh8 Qh3 Rb7 Qh7 Ra7 Kg7 Rb4 Qg2 Rff8 Qf3 Kb2 Qg2+ Kb3 a1Q Rd4 Qc1 Rb4 Qf3+ Ka2 Q7b7 Rc4 Nc7 Rd4 Na8 Rc4 Bg8 Qdg4 Bge6 Rb4 Qcf4 Rd4 Q4g3 Rb4 Qbc7 Rc4 Be5 d6 Bf4 d7 Bd6 d8Q Qgg2+ Qc2 Rh6 Qe2 Kg6 Qe4+ Kh5 Qd7 Rg6 Rb7 Bg4 Rd4 Kh4 Ra7 Qgg3 Qc4 Kh3 Qdf5 Kg2 Qff4 Bge6 Qg4 Kg1 Rb7 Bf4 Bd6 Qb8 Rbf7 Qbb7 Nd7 Qcc7 Ba3 Qbc6 Ndc5 Be5 Rdd8 Bd6 Rde8 Qg7 Rh4 Qh6 Rh8 Qh7 Ref8 Qgg2+
1rqQ2N1/P4RK1/k1qR4/2b2BBQ/qQnR3Q/b2P3b/4b2P/r4Nb1 w - - 0 1 legal: proof: e4 d5 b4 a5 g4 f5 exf5 axb4 Ke2 d4 Ke1 d3 cxd3 Bd7 Qe2 Be6 Qd1 Bc8 Nf3 h5 gxh5 c5 Rg1 c4 Bg2 c3 Rh1 c2 Bh3 Nc6 Ng1 Na7 Bg2 Nb5 Bf1 Nc3 dxc3 Bd7 Bh6 Be6 Bc1 Bc8 Kd2 Kd7 Ke3 Kc6 Kf4 Kb6 Ke5 g5 f4 g4 a4 g3 c4 b3 a5+ Ka7 a6 b5 f6 g2 h6 b2 f5 e6 f7 b4 f6 b3 h7 Bb4 f8Q Kb6 c5+ Ka7 c6 Qe8 c7 Bc5 f7 Nf6 Ne2 g1B Nbc3 b1B Ne4 b2 Bg5 c1B Ra4 Bc2 Bh3 b1Q Rd4 Qa1 Bf5 Qc6 N2g3 Ne8 Qh5 Nd6 Kf6 e5 Nf1 Bd1 Kg7 B1a3 Qd8 Nc4 f8Q Be2 Nf6 e4 Ng8 e3 Qh4 Be6 c8R Qd1 Rb8 Qda4 Rb6 Qc8 Rbd6 Qcc6 Bg6 Bh3 Qff4 Rb8 Bf5 Rb1 Qh5 Ra1 Qfh4 Qc8 Qa5 Qac6 Qae1 Kb6 a7 Kb7 Qb4+ Ka6 Rd7 Qa4 R7d6+ Qcc6 Ne7 Rb8 h8Q Beg4 Q8e8 e2 Ng8 e1Q Qe7 Qe6 Qd8 Bf2 Rg1 Qc8 Rg3 Bd1 Re3 Bdg4 Re7 Be2 Rf7 Bg1
qq5Q/Q3N1RP/1P3n2/b1b3BB/n2r1RB1/N3q2K/2q3Pn/1b1Q2Bk w - - 0 1 legal: proof: f4 b5 a4 a5 axb5 e5 c4 exf4 h4 d5 cxd5 g5 hxg5 h5 Ra4 Ra6 Ra1 Rah6 gxh6 Qe7 Rh4 Qg5 Rh1 Qd8 Kf2 Ke7 d4 Kd6 b4 c5 e4 f5 b6 a4 b7 c4 h7 c3 b5 c2 b6 h4 Qh5 f3 Bh6 c1B Na3 f4 Rh2 h3 Qg5 Nd7 Ne2 Ngf6 Qg7 Bd2 Nc3 Nc5 Be2 Bf5 Bg5 Qb8 Rhh1 h2 Rhf1 h1Q Bd1 Qc7 b8B Qh6 Kg1 Qg6 Kh2 f2 Bg4 f3 Kh3 Qe8 Qf7 Qe5 Rae1 Be7 Re2 Rd8 Re3 Qf4 Rd3 Qe3 e5+ Kd7 e6+ Kd6 Qg7 Be1 Rd2 Bb1 Rc2 Bf8 e7 Rd7 e8B Be7 Ne2 Ba5 Beh5 Rd8 Ng3 Rd7 Re1 f1Q Rf2 Qfd3 Rff1 Qc2 Qh8 Rd8 Nf5+ Kd7 d6 Ke6 d5+ Ke5 d7 f2+ Ng3 Bf8 d6 Qb7 Bc7 Qb8 Rd1 Be7 Rd4 Bf8 Rf4 Be7 Rd1 f1N Qg7 Nh2 Rdd4 Rc8 d8Q Bf8 Qdd7 Rd8 Qe8+ Be7 Qeh8 Bf8 d7+ Bd6 Nb5 a3 Rd3 a2 Na3 a1Q Rdd4 Qee4 Nf5 Na4 Ne7 Qac3+ Rd3 Qea8 Rg3 Qe3 Qf7 Re8 d8Q Rg8 Qd7 Rd8 Rf1 Ke4 Rf4+ Kd3 Qb3+ Kd2 Qd3+ Ke1 Qa6 Bdb4 Qa7 Bc5 Qd3 Rd4 Be5 Qef3 Qd1+ Kf2 Bd6 Nf1 Be5 Kg1 Bc7 Kh1 Be5 Rd8 Bd4 Qfe2 Bg1 Rd4 Re3 Nh2 Re6 Ne8 Rg6 Nf6 Rg7 Qe3+
rN6/n3BP2/b1nbn1P1/3kbP1Q/5Q2/2Rr1R2/2Q1BK2/Nb1bbN1N w - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 f5 e4 d5 exf5 b5 axb5 a4 cxd5 Qd6 Qe2 Qa6 Qd1 Qa5 bxa5 Ba6 Qb3 Bb7 Qd1 Bc8 f4 Kd7 d4 Kd6 g4 h5 f6 c5 a6 e5 f5 c4 a7 c3 f7 h3 g5 a3 b6 h4 b7 e4 g6 h2 Nh3 c2 Bg5 c1N Qc2 a2 Nd2 e3 Be2 Be7 Rf1 h1B Nf2 Bf3 Nh1 Nb3 Rc1 Nc6 b8N a1B Bf6 Bh5 Rf3 h3 Nf1 h2 Bh4 Ba6 Bf6 Kc7 d6+ Kb6 d5 Nbd4 d7 Ne6 d8N Be5 Nb7 B7d6 Nc5 Nge7 Bh4 Nc8 Be7 Rd8 Nb3 Rd7 Na1 Bg4 Bc4 e2 Kf2 Kc5 Bb5+ Kd4 Bc4 Ba3 d6 e1B+ Kg2 Bh5 Be2 Bd2 Kf2 Rd8 d7 Kd5 Rf4 Bad6 Rf3 Rg8 d8Q Re8 Nhg3 h1B Qc7 Bg2 Nh1 Rd8 Qb6 Bg4 Qe3 Rd7 Qf4 Bh5 Ra3 Be4 Rf3 Bg4 Qa4 Bb1 Rcc3 Rb7 Qc2 Rb3 Rc4 Re3 Rc3 Rd3 Nd7 Rb8 a8Q Na7 Qb7 Ra8 Nb8 Bb4 Qc8 Ba3 Qh8 Bad6 Qh5 Rd4 Bb5 Rd3 Re3 Bd1 Rf3 Re3 Be2 Rd3 Bg5 Bb5 Bh4 Ba6 Be7 Be1+
bN1b1q1k/3Kqb2/3BrR2/2r4b/7R/rR1QrqPP/1N4P1/BBQ2R2 w - - 0 1 illegal: No possible last move
2nN4/1n1bQPPn/KQ2q1b1/2BPn3/3n1BNB/3RQb1k/6R1/bn5B w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 g5 h4 gxh4 Qb3 f4 Qd1 Ra7 f3 h5 Bd3 e5 Be2 Ra6 Bf1 Rf6 Ne2 Rf5 exf5 e4 Ng1 e3 Rh3 Rh6 Rh2 Re6 Rh1 Re4 fxe4 Bh6 Nh3 Bg7 Ng1 Bf8 d6 Kf7 Ke2 Kf6 Kd3 Kg5 Kc4 c5 b4 h3 g4 Kh4 d4 a4 d5 f3 d7 a3 b6 e2 Kb5 e1N g5 c4 e5 h2 b7 f2 f6 a2 e6 c3 f7 c2 e7 Bh6 e8Q Qc7 d8B Ne7 g6 Na6 b8B Nc5 Bf4 c1N Qf3 Qd6 Bg2 f1N Ba7 Bg7 Ne2 Nc1d3 Nd4 Nd2 Qe3 Bd7+ Nc6 Nef3 Rd1 h1B Nc3 Ng5 Ne4 Nh7 Nf6 Qe6 Rg1 Nc8 Rad1 a1N Be7 Nce4 Bac5 Ned6+ Ka6 Nb1 b5 Nc2 b6 Bh8 b7 Bg7 Bf1 Bf3 b8Q Be4 Qa7 Nb7 Qb6 Bf3 Ng4+ Bf6 Bf8 Ba1 g7 Nd4 Nd8 Ne5 Rd2 Bh1 Rd3 Bf3 Bg2 Be4 Nf6 Bf5 Bfe7 Bg6 Ne4+ Kg4 Beg5 h4 Qe7 h3 Bh4 h2 Nf2+ Kh5 Be4 h1B Rg4 Bf3 Rg1 Bd1 Bh1 Be2 Rg2 Bf3 Bf6 Ng5 Ng4 Kh4 Rc2 Kh3 Rg2 Nh7 B6g5 Nf8 Bh4 Nh7
8/1rPb1RBk/1P1B1R1P/Kpr2N1n/r2n3Q/RNb2q2/Qn2R3/3bN3 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 c4 a4 c3 dxc3 Rh6 c4 Rh7 c5 Rh8 a5 b6 axb6 a6 b7 Qc7 Ke2 Qb6 Ke1 Qd8 b4 Nh6 b5 Ng8 b6 Kf7 Bc4+ Ke8 Bb5 axb5 Kd2 Kf7 Kc3 e5 Kb4 d5 c4 g5 f4 Kg7 h4 e4 h6+ Kh7 f6 d4 h5 e3 f7 e2 f5 e1N f6 d3 Nf3 g4 Bb2 g3 Nbd2 g2 Rh2 g1R Re2 Rf1 Ra3 Bh3 Qb3 Bc8 Qa2 Bg7 f8R Rg1 c6 Rf1 c5 Ra6 f7 Qg5 c7 Ra7 c6 Qf5 Nb3 Bd7 c8N d2 Ne7 d1B c7 Qd3 Nf5 Nf6 Ba1 Rg1 Be5 Rg5 Bd6 Ng2 Ne1 Nf4 Ng3 Rc5 Nf5 Na6+ Ka5 Ne6 b8Q Qf3 Qa8 Rb7 Qd8 Nd4 Qe7 Rg8 Qe4 Nb4 Qh4 Kh8 h7 Nd3 Ra8 Nb2 f8R Qg4 Rf7 Qf3 Rae8 Rf8 R8e4 Re8 Rf4 Re4 Ng3 Nd5 R4f6 Nf4 Rf5 Be5 R7f6 Kg7 h8B+ Kh7 h6 Nh5 Bg7 Re3 Nc1 Rb3 Rf7 Rb4 Nb3 Nc2 Rf4 Bc3 R4f6 Nd4 Nf5 Ra4#
3n4/1NQ2QRr/bq2R3/2q2nKN/1p1B2P1/r2n2N1/B1P1PrBk/B6b w - - 0 1 legal: proof: d4 a5 f4 e5 b4 c5 dxc5 g5 fxe5 f5 Nh3 g4 Ng1 f4 g3 Bd6 gxf4 g3 Bd2 g2 Bc1 axb4 f5 Be7 Ba3 Bg5 Bb2 Bf4 Bc1 Bg3+ hxg3 Ra3 Bh6 Ra7 Bc1 Ra8 Kd2 Kf7 Ke3 b5 Kf4 h5 a4 d5 c6 d4 e6+ Kf6 e7 h4 e8Q d3 a5 h3 a6 h2 c7 b3 g4 b4 a7 d2 Ra6+ Nc6 Nh3 g1N Nc3 b2 Ne4+ Kg7 f6+ Kh6 f7 b1R f8B+ Kh7 Bc5 Kh6 Bd4 Ne7 Ng3 Nf3 Qf7 Ne5 Bcb2 Nf5 Ba1 Rh7 Bg2 Qd6 Rb6 Ba6 c8N Qc5 Nd6 Nd8 Qf1 d1Q Qc7 Qd3 Qf3 Qdb5 Nb7+ Qbc6 Qf1 Qg6 Re6 Rd1 Qf2 Rf1 Bd5 Qf6 Ba2 Qg6 Qf3 Rf2 Rd1 h1B Rd3 Rc8 a8B Qf6 Re3 Qg6 Re7 Qgb6 Rg7 Nd3+ Ke4 Qg6 Nf4 Kg5 Nfh5 Kh4 Na5 Kh3 Nb7 Ne1 Kf4 Qgb6 Re6 Nd3+ Kg5 Kh2 Qff4 Rb8 Qf7 Rc8 Q4c7 Rb8 Na5 Rc8 Bg2 Ra8 Nb7 Bb5 Nf6 Ra3 Nfh5 Ba6
2r1RRR1/1R3NQQ/r4q1N/1n2Pb2/2kN4/1qPpB1P1/b4q1K/n4rB1 w - - 0 1 legal: proof: d4 e5 a4 c5 dxc5 b5 axb5 g6 f4 Ke7 fxe5 Ke8 g4 Bh6 Bg2 Bf4 Be4 Bg3+ hxg3 Qc7 Bd3 Qd8 Bf5 gxf5 Kf1 Ke7 Kg2 Ke6 b4 d5 e4 a5 c6 h5 c3 h4 c7 f4 b6 f5 g5 d4 b5 d3 g6 f3+ Kh2 h3 b7 f2 g7 f1Q b6 f4 Nd2 a4 Ne2 a3 Nc4 f3 Rb1 a2 Nd6 a1Q Be3 f2 Nf7 Nh6 g8N Na6 b8B Qa2 b7 Qf6 Bba7 Qb3 b8Q Nb4 Qb7 Nf5 Ngh6 Nc2 Rg1 Qe1 Rf1 Nd6 Rb2 Bd7 c8R Na1 Rg8 Nb5 Bab6 Ra6 Nd4+ Ke7 e6 Qd2 Ng5 Kd6 e7 Bf5 e8R Qe2 Qa7 Qe1 e5+ Kd5 Ngf7 Kc4 Qg4 Qe2 Kh1 h2 Qg7 Qec2 Kg2 h1B+ Kh2 Bd5 Qh7 Qd2 Qe7 Bde6 Qf8 Qe2 Qfg7 Qf3 Rfb1 f1R Rf2 Qe2 Rd1 Kd5 Ng5 Nc7 Bc1 Qba2 Rc8 Qac2 Nb3 Bf7 Rgd8+ Qd6 Rd2 Qcd1 Rb2 Bh3 Rb1 Qee1 Rf3 Bd7 Bg1 Bg8 Rf7 Bf5 Nd4 Kc5 Rb2 Qf6 Bce3 Qb1 Re7 Ba2 Ngf7 Kc4 Rb7 Qb3 Ra8 Nb5 Rdb8 Re8 Re6 Re7 Rg8 Rc7 Raf8 Rc8 Ree8 Qf2+
n4N1b/1K1N4/B2r2RB/bP1q1Qr1/P6p/q1BRQq2/3PnQ2/5bBk w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 a4 b5 axb5 a5 b3 a4 bxa4 gxh4 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 e6 f4 c6 g5 h3 f6 h2 g6 h4 f5 Bg7 Qc2 Ra6 Bb2 Rh7 Nh3 Bh8 g7 Nd7 f7 Nb6 f8B+ Ne7 f6 Na8 g8Q Rg7 Rg1 h1Q f7 Qf3 Na3 c5+ Kc4 e5 Nf4 e4 Rg6+ Be6 Bh3 e3 Bc3 e2 Qf5 e1B Rb1 Bf2 Rb3 Bd4 Qh7 Be3 Qh6 Rc6 Qhg5 Rg8 Bh6 Rg7 f8Q Bd4 Bb2 Bc3 Ba1 Bb4 Rd3 Ba5 Bc3 Qd7 Qg1 Qd8 Qe3 Qd7 Rg4 Rg5 Ng6 Qd8 Q8f6 Qg8 Nf8 Ng6 Qfd4 Nf4 Qf2 Ne2 Qde3 Rh5 Rg6 Rg5 Nc2 Qf7 Nb4 Qb7 Na6 Qf7 Kb3 c4+ Ka3 Qg8 Nc5 Qf7 Ncd7 Qg8 Ba1 c3 Bg2 c2 Bc3 c1Q+ Kb3 Bc7 Kb4 Qa1 Qb6 Qc1 Ka5 Qa3 Ka6 Bd8 Ka7 Qf7 Qbe3 Ba5 Qg4 Q7f5 Kb7 Q5e4 Qf5 Qd4 Ne5 Kc5 d6 Bc4 d7 Kd5 d8B Nc7 Qef4 Na8 Re3 Qde4 Bb6 Qd3 Q4g3 Qde4 Rd3+ Qd4 Qfh3 Ke4 Ned7 Qdd6 Bh1 Qd5 Qgg1 Kf4 Qgf1 Ke4 Qe6+ Kf4 Qee3+ Kg4 Qb1 Kh3 Bg2+ Kh2 Qbf1 Qff7 Qf5 Qf3 Qff2 Q7d5 Qee5+ Qg3 Rd4 Re6+ Kb8 Nc1 Qe2 Qdc5 Bb7+ Kg1 Rd5 Kh1 Ba6 Qf3 Kb7 Rc6 Qe5e4 Qd6 Bg1 Qe5 Qf2 Bf1 Qed4 Ne2 Qde3 Qe6 Rd4 Qed5 Rd3 Rd6+
B2QnN2/Nbbq4/2n5/P2RRR1n/2rRPrqr/K7/2QPkpB1/2Q5 w - - 0 1 legal: proof: b4 a5 f4 h5 a4 e5 fxe5 b5 g4 d5 gxh5 d4 bxa5 b4 Ba3 d3 cxd3 bxa3 d4 Na6 d5 Nb8 h4 Kd7 e4 g5 d6 Kc6 d7 Kc5 e6 Kd4 h6 f5 h7 c5 a6 g4 a7 f4 e7 g3 e8R f3 a5 a2 h5 g2 h6 c4 Rh5 c3 Qc1 c2 Rf5 Bc5 Nc3 Ne7 Nge2+ Kd3 Nb5 g1N Bg2 Nd5 Ree5 Nc7 Ned4 Nh3 Ne6 Nf4 Nf8 Bb6 Rb1 a1Q Rb4 Qe8 d8Q+ Qd7 Rc4 Qb1 Rcc5 Ne8 Rcd5+ Bd4 Qc7 Nc6 Qd8 Rb8 a8B Nh5 Na7 Rb4 Qc7 Bb7 Qc8 Rc4 Qc7 Rg8 h8R Rg4 h7 Rf4 Rg8 Qb5 h8Q Qg7 Qc8 Qg4 Rg6 Qa4 Rgd6 Qb5 Qf6 Qa4 Qfd8 Qb5 Qd1 c1R Rd7 R1c3 Qc1 Rb3 Kd1 Rbc3 R5d6 Qd5 Qcc7 Bb6 Qcc8 Bc7 Qc2+ Kd4 Kc1 f2 Kb2 Rh3 Ka2 Rh1 Ka3 Rh4 Qc1 Kd3 Qc2+ Ke2 Qc1 Qb5 Rd4 Nb8 R7d5 Qd7 Qc2 Bb6 Qc6 Bc7 Qc5 Nc6 Qc1 Rb4 Q5c2 Rc4
1q1RrR2/3n1nRb/B3Q1Q1/P2rRpP1/3NN1kr/q5P1/b5K1/1N3Bb1 w - - 0 1 legal: proof: b4 a5 f4 g5 a4 e5 fxe5 b5 h4 d5 hxg5 d4 bxa5 b4 Ba3 d3 cxd3 bxa3 d4 Bf5 d5 Bc8 Kf2 Kd7 e4 c5 d4 f5 e6+ Ke7 a6 h5 a5 c4 g3 a2 e5 h4 d6+ Ke8 e7 Kf7 e8Q+ Kg7 d7 h3 a7 c3 e6 c2 e7 c1R d5 h2 d6 Rc5 Qd5 Nh6 Ne2 Nf7 Qe6 Rh4 Nd4 Rd5 Kg2 Qc7 d8R Nd7 Ba6 Qb8 Re1 Kh7 Re5 Bg7 Bf1 Bf6 Ba6 Kg6 Qg8+ Kh5 e8N Bh8 Qgg6+ Kg4 Bf1 Ba6 Rc8 Bc4 Rd8 Nb6 d7 Bf6 Nd6 h1B+ Kg1 Be7 Ne4 Bc5 Rf8 Bb3 d8R Nd7 Ba6 Bf3 Bf1 Be2 Kg2 Bec4 Nbc3 Bb6 Rc1 a1Q Nb1 Qa3 Rc2 Ba2 Rc3 Bcb3 Rc7 Qb7 Ba6 Rc8 a8B Qb8 Bc6 Ba7 Bcb5 Bc5 Nc2 Bg1 Bf1 Bc4 Nd4 Bcb3 Rg8 Bc4 Rdf8 Re8 Rg7 Bcb3 Rc8 Nd6 Nc6 Rc5 Qe7 Bg8 Rd8 Bh7 Qee6 Rd5 Nd4 Nf7
4qqNQ/RK2Nr1b/2BP3r/3R4/n2P1Pr1/bNp3n1/kn2Q2B/4Q1Q1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 b3 b6 g4 f6 c6 h6 g3 f7 b2 h5 g2 h7 e6 h6 Nd7 b7 Qg5 b8N Qh5 Ra7 Nb6 Qe2 Na4 Nh3 g1R Nf4 Ne7 Nd7 Rg4 Bg2 c5+ Ke4 c4 d4 c3 Nd2 b1N Nb3 e5 Nf6 Nf5 Ng8 Na3 f3 Qg6 Rh5 Qf6 Bd2 Be7 f8Q Nc4 Qe8 Ncb2 Be3 Qg7 Bg1 Qf8 Bh2 Rb8 Qe1 Rb7 Qb5 Be6 Qbe2 Bf7 Qg1 Bg6 Qee1 Kc7 Rg5 Ba3 d6+ Kb6 Kd5 Kb5 Bh1 Kb4 Kc6 e4 Nd5+ Kc4 f4 e3 Nde7 Ng3 Rd5 e2 Bf3 Rb5 Kc7 Rc5+ Kb7 Be4 Qd2 e1Q Qe2+ Bd3 Rg5 Rf5 Bc6 Rf7 Rd5 Rh4 Nf6 Rg8 h8Q Rgg4 h7 Rh6 Ng8 Kb4 Qhe5 Bb1 h8Q Bh7 Nd2 Rf5 Q2e3 Qd1 Qee1 Qe2 Ng6 Qe3 Qe4 Rf6 Qc2 Qee8 N6e7 Rf7 Qcd1 Bd3 Qde2 Bh7 Ne4 Kb3 Nc5+ Ka2 Nb3 Bc5 Na5 Bb4 Nb3 Ba3
2Q4N/2nQ2N1/1p1rQ3/PN1r3R/3qK1PR/P6N/qB2B1nb/br2k1q1 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 Kd7 exf5 Ke8 g4 Be6 f4 gxf4 h3 Bf7 g5 Bh5 Qa4+ Qd7 Qd1 Bg4 hxg4 Qd8 Ke2 Kd7 Kf3 Kd6 d4 h5 g6 e5 a3 c5 f6 e4+ Ke2 f3+ Ke3 h4 f7 f2 g7 c4 Qd3 b6 Rh2 h3 Qd1 c3 Bb5 f1Q Rd2 c2 Bb2 c1Q Be2 h2 Qa4 h1R Nh3 Qc4 Qd1 Nf6 g8N Nh5 Nc3 Qa2 Qe1 Na6 Ne7 Rh6 Ng6 Bg7 f8N Nf4 Ne6 Nc7 Nh8 Bf6 Ng7 Qg1+ Qf2 Qd7 Rdd1 Rd8 Nb5+ Ke7 Rdc1 Be5 d6+ Kf6 d5 Rg6 Kd2 e3+ Kc2 Bc3 Qe1 Ng2 Kd3 Ke5 Rab1 Bd4 Rc5 Bc3 Nd4 Qa4 d7 Rd6 Nb5 Qd4+ Kc2 Rg8 d8Q Ke4 Qd7 Rd8 Qc8 Rh6 d6 Rh5 d7 Rd5 Bd3+ Kf3 Rc1 Rd6 Rh5 e2 Bc4 Rf8 d8Q Rf5 Qdd7 Rfd5 Qd1 Kg3 Qe6 e1B Be2 Bed2 Rh4 Bf4 Qd2 Be5 Rf1 Bf4 Rf2 Be5 Rf5 Bf4 Rfh5 Be5 Nf4 Kf2 Qd3 Ke1 Nh3 Bh2 Qdf5 Qf6 Qed7 Bd4 Kd3 Qd8 Ke4 Bf6 Bc1 Ba1 Qfe6 Qf6 Bb2 Qfd4+ Kf3 Qf1+ Nf2 Kd2 Rh7 Qd1 Nh3 Re1 R7h6 Qg1 Ke4 Qa4+ Kf3 Rb1 R6h5 Qad1 Ke4 Ke1 Bd4 Qdd2 Bb2 Qdd4+
5Bb1/RQRPB1n1/R2Q2rN/1NqB2B1/1qb1P2p/1rP5/2q1r3/1k2nK2 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 g5 hxg5 d5 axb5 exf4 Ra2 c5 Ra1 Bg7 c4 Bc3 cxd5 c4 Qc2 Bb4 Qd1 c3 Nf3 c2 Ng1 Bc3 bxc3 Be6 Ra3 Bh3 Ra1 Bc8 e4 Kd7 d4 Kd6 g4 f5 b6 a5 b7 h5 g6 h4 g5 f3 g7 f4 g6 f2+ Ke2 a4 Qd3 f3+ Kd2 a3 Ne2 a2 Ng3 Qc7 Na3 Nd7 b8B Ne7 g8Q Rh6 g7 Nf5 Qh7 Rg6 g8R Ne5 Rg7 Be6 Bh3 f1B Ke1 Ra5 Bg5 Bg8 Rf7 Ng7 Be6 Rc5 Ba7 Qb7 Rc7 c1Q+ Qd1 Bb5 Bf7 Nd3+ Kf1 f2 Bb6 Ba6 Ba5 Qe3 Bb4 Bc4 Rg1 Qa8 Ra7 Qb7 Nf5+ Kc7 d6+ Kb6 d5 Rb5 d7 Qc5 d6 Ne1+ Qd3 Kc6 d8B Qb8 Rb1 a1R Nh6 Ra2 Ra1 Re2 Bde7 Rb7 Bd5+ Kb6 Nb1 Kb5 R1a6 Qf8 Ba3 Qb4 Rg3 Qc8 Rf3 Qcc5 Rf8 Rb6 Rc8 Rb8 Rcc7 Rb7 Nd2 Rb6 Nb3 Rb7 Na5 Ka4 Nc6+ Kb3 Nd4+ Ka2 Nb5 Ka1 Qg3 Kb1 Qf4 Rb8 Qf8 Rb6 Qb8 Rb7 d7 Rbb6 Qb7 Qb2 Bef6 Qe3 Be6 Nh5 Bf8 Qec1 Nd6 Qd1 Bd5 Qdc2 Qe7 Ng7 Qe5 Qb5 B6e7 Qa5 Qf4 Rb3 Nb5 Qb4 Qd6 Nd3 Kg2 Ne1+ Kh3 f1Q+ Kg4 Qf2 Kh3 Ng2 Kh2 Ne1+ Kh1 Qf6 Kg1 Qd4+ Kf1 Qdc5
1Q4N1/2PNBR1K/2nn2qB/2R3Q1/bP4N1/k1rn1p2/Pr2b2Q/2bq1Q2 w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 b5 g4 h5 gxh5 c5 d4 a4 dxc5 Ra7 Bg2 Ra6 Bd5 Ra7 cxb5 Ra6 b4 Ra8 Bb3 axb3 Kf2 Ke7 Kg3 d5 Kh4 f5 Kg5 g6 e4 b2 h4 d4 c6 f4 h6 d3 c7 f3 h7 d2 h5 Qd4 b6 Bg4 b7 Qd8 e6 Kd6+ e7 Nf6 e8N+ Kc6 e5 Kb5 h6 Nfd7+ Nf6 Nc6 b8Q+ Nb6 e6 Qd4 e7 Ra3 e8Q Bc8 Qe3 Rc3 Nd7 Ba6 Qf1+ Ka4 Nh3 d1N Nd2 b1B Nf2 Be2 Nde4 Nc4 Nef6 Bc2 N2g4 Nf2 Ng8 Qd1 Kf6 Bc5 Kg7 Nd6 Qg5 Nd3 Be3 Ba7 Rc1 Ka3 Rh2 Ba4 Rg2 Rb3 Rc5 Rc3 Rh2 Bb6 Rh5 Ba7 Rf5 Bb6 Bd2 Be3 Rf7 Bf4 Be3 Nc8 Bc5 Bc1 Be7 Nd6 Qf6 Qe1 Rc5 Qd2 Qg5 Qd1 N8f6 Re8 h8B Rd8 h7 Re8 Qh5 g5 Ng8 Rd8 Kh6 Re8 Bg7 Rd8 Nge5 g4+ Qg5 g3 h8Q g2 Ng4 g1Q Kh7 Re8 Bd8 Re4 Bh6 Rec4 Be7 Rb3 Nf8 Rcc3 Nd7 Rb2 Qhe5 Qh1 Qg3 Qh5 Qh2 Qg6+
8/nbr2nk1/Q3K1r1/N2Q2N1/p1Pr1b2/2B1B1nP/2R1N1P1/nRRN1q2 w - - 0 1 illegal: No possible last move, all moves rejected
5R1Q/BQ5r/1NQK1nBQ/P3n1bP/5N2/4nnP1/1kr2R1p/1b1R1qr1 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 h5 Ke1 g4 Ba3 g3 hxg3 h4 Bb2 Rh7 Bc1 Rh8 Nc3 h3 Nb1 h2 Bb2 Qd6 Ba3 Qh6 Bc1 Qh3 gxh3 Kd8 Qf3 Kd7 Qd1 Ke8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 b5 a4 c6 f4 e6 a5 b3 d4+ Kb4 d6 c5 f6 c4 f7 b2 d5 c3 f5 c2 d7 Kb3 d8Q b4 d6 Rh5 h4 Be7 f8R Bg5 d7 Rh7 f6 Nc6+ Kd6 e5 h5 e4 f7 e3 Ne2 Nf6 Qe7 Ne5 d8Q Bf5 Ra2 Rc8 Nf4 e2 Be3 e1N Ba7 Ng2 Qc1 Ne3 Na3 b1N Bd3 Nd2 Nc4 Ndf3 Rd1 Kc3 Rb2 b3 Qb7 Rc7 Ra2 b2 Nb6 b1R Qdc8 Rc5 Qcc6 Kb3 Qd2 c1Q Be4 Qc4 Qd4 Qf1 Rf2 Rc2 Qd2 Bd7 Bg6 Be8 Rg8 Bd7 f8Q Bf5 Qfg7 Kb2 Qh8 Be6 Rf8 Ba2 Qdd5 Rc1 Qdg8 Bb1 Qgg7 Qe2 Qh6 Qc4 Rd4 Rg1 Rd1 Qf1
1b1qR2Q/7R/B1r2P1K/2rrNQ1P/1nP3R1/Bkp1n1Q1/nr2b2N/2R5 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c5 c3 c4 b3 d5 bxc4 d4 Ba3 dxc3 Bb2 Ba6 Bc1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 f4 e5+ f6 a5 d4 e4 h4 a4 d5 g6 h6 e3 f5 e2 d6 e1N b6 a3 d7 a2 h7 Ng2 b7 Ra6 Qe1 Kb3 Ba3 Nc6 b8R+ Nb4 Nf3 Ne7 f7 Ne3 Nh2 Rc6 Bg2 N7d5+ f6 Rc5 Qg3 Bd6 Kh6 g5 f8R g4 Re8 Rf8 Rb5 Bb8 h8Q Rg8 h5 Rg5 Rc1 Rf5 Rb7 Rf2 Qh3 g3 Qf5 Rb2 Bh3 g2 Nd2+ Ka4 Rab1 g1R Ndf3 a1R Ne5 Na2 Qg7 Rc6 Qg3 Rd1 Rc7 Rd4 Rg1 Rd1 Rc1 Ndb4 Bg2 Rc5 Bb7 Kb3 Ba6 Bb7 Rg2 Bf3 Rb7 Rdd5 Ra7 Qb6 d8Q Be2 Rh7 Qc7 Qgf3 Rab1 Rg4 Qe7 Qdc8 Qd8 Qg3 Rc6 Qb7 Rdc5 Qg7 Rd2 Qf8 Rbb2 Qh8 Rdd5
KQB2b1k/4Nn1P/6b1/1N1R4/3r2B1/Rnq2P2/R1r1P1bp/rQ1Br2B w - - 0 1 illegal: No proof kernel
5b2/1k1Pp2B/n1RRn1Q1/Prn1RQQ1/K2P4/Br2r3/N2bN3/1n3Q1q w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 d4 Kd7 Kd2 Kc8 Kc2 b5 Kb3 c5 a4 h5 f6 h4 g7 h3 d6 h2 g6 Kb7 g5 Nh6 g8R Na6 a5 Nf5 d7 Ng7 f7 Rb8 Nc3 Ne6 g7 Rh3 g6 Re3 Bd3 Qb6 Na2 Qc6 Ba3 c4+ Kb2 c3+ Kb3 c2 Ne2 c1B Qf1 Bd2 Rc1 Qf3 Rc6 Qg2 Rg1 h1N Qf5 Qe4 Rg5 Ng3 Rh8 Qh1 g8Q Ne4 g7 Qh2 Qgh7 Qh1 g8Q N4c5+ Kb2 b3 Qhg6 b4 Rh6 Qh4 Qf1 Qh1 Re5 Ka7 Qg5 Rb5 Bh7 Kb8 Q8g6 Kb7 Kb1 b2 Kc2 b1N Kb2 Bg7 f8Q b3 Q8f5 Bf8 Bb4 Nc3 Ka3 b2 Rd6 b1R Rc6 Nd3 Bd6 R1b2 Bc5 Nb1+ Ka4 R2b3 Ba3 Nf2 Q6h5 Ne4 Rf6 Nf4 Rfd6 Ne6 Qhg6 N4c5+
q5R1/kb2q2N/q1B3B1/1K1N1r2/4P3/1P2bBn1/Q3r1pP/1QqBnR1N w - - 0 1 legal: proof: d4 d5 f4 e5 dxe5 b5 a4 d4 axb5 d3 cxd3 Nc6 d4 Nb8 d5 Bd6 Ra6 Be7 Ra1 Bf8 f5 g6 fxg6 h6 g7 Qd6 Ra6 Qd7 Ra1 Qd8 g4 Ke7 g5 Kd7 g6 Ke8 Bg5 hxg5 Kd2 Kd7 Kc3 f5 Kc4 a5 e4 c5 d6 f4 b3 a4 b6 Kc6 b7 Kb6 d7 f3 e6 a3 e7 a2 e8B g4 Ne2 g3 Bg2 f2 Qe1 f1Q Rg1 Qe7 d8N Nh6 g8B Nf5 g7 Nc6 b8Q+ Bb7 Be6 Ncd4 g8B Nf3 Bh7 Bh6 Nf7 Be3 Nc3 Rf8 Qb1 Qc1 Bg6 Qa3 Ng5 Ne1 Bf3 g2 Nh7 Rf7 Rf1 Ng3 Bc6 Rf5 Nd5+ Ka6 Qd8 Ka7 Kb5 c4 Bc8 c3 Qa5+ Kb8 Qa4 c2 Be6 c1Q Bef7 Nh5 Ng3 Ra7 Nh1 Ng3 Bgh5 Ra6 Qa5 Ka7 Qd2 Ra4 Bfg6 Rd4 Qdb2 Rd2 Bd1 Re2 Bg4 Rg5 Rf8 Rf5 Bf3 Qe8 Rg8 Qae7 Q1c2 Qa8 Rb1 a1Q Qa2+ Qca3 Rc1 Qc3 Qcb1 Qb2 Rc3 Qc1 Rd3 Rb2 Rd2 Rc2 Rf2 Re2 Rf1 Qa6+
3Q1NrR/R3Pn1N/8/3b1P2/N1b1q3/K2B2kb/1NPB1qp1/r1bQRn2 w - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 b5 f4 e5 fxe5 f5 exf5 b4 d4 cxd4 a3 Be7 axb4 Bd6 b5 Bf8 Kd2 Kf7 b4 a5 h4 d5 b6 g5 h6 g4 b5 d3 Kc3 d4+ Kb2 a4 h5 d2 h7 g3 b7 g2 b6 a3+ Ka2 d3 e6+ Kf6 e7 Kg5 h6 Kf4 Qh5 Nc6 b8Q+ Ne5 b7 Qd4 Nc3 Nf6 Bb2 d1B Na4 d2 Bd3 Ng4 Nf3 Qe4 Re1 Rg8 h8R Ne3 h7 Be2 Bc1 d1B Nd2 Bh6 Nc4 Kg3 Bd2 Be6 Qd8 Bd5 b8N Nf1 Nd7 Nf7 Nf6 Bg4 Kb3 a2 Ka3 Bh3 Nb2 Be2 Bb5 Bec4 Qd1 Bb3 Be2 Bbc4 Bd3 Rg7 Rg8 Ra7 h8N Rg4 Re8 Rg8 Ng6 Bf4 Nf8 Ra6 Rb1 Be3 N6h7 a1Q+ Kb4 Qa2 Ra1 Qb1 Ka3 Qc1 Bb4 Qd2 Ra2 Qf2 Bd2 Rg5 Ne6 Rg7 Rh8 Rg8 Nef8 Bh6 Bb4 Bc1 Bd2 Ra5 Kb4 Kh2 Nb6 Rc5 Ra7 Kg3 Ka4 Ra5+ Kb4 Ra1 N6a4 Ba2+ Ka3 Bac4+
1K4k1/1N1bRNB1/1BB1P1n1/1rq2N1R/b3BQ2/PP5q/2Q1n1np/q3b3 w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 Nc3 b5 Nb1 a5 Rh6 b4 Rh1 b3 axb3 Bc5 Nf3 Bb4 Ng1 Bf8 Na3 a4 Nb1 a3 Rh5 a2 Rh1 Ra3 bxa3 Qd7 Rh3 Qd6 Rh1 Qd8 Kf2 h5 Kf3 c5 Ke4 f5+ Ke5 Kf7 d4 c4 e4 f3 g4 c3 g6+ Kg7 d6 f2 d7 h4 d5 h3 d6 c2 g5 f4 Nd2 f3 Bg2 f1N Ne2 f2 Ng3 Nh6 Nf5+ Kg8 g7 Na6 Nf3 Nc7 Bb2 c1Q Qc2 Kf7 g8B+ Kg6 Bd5 Kh7 Bc6 Nb5 g6+ Kg8 g7 Qh4 d8B Bd7 Ng5 Qe3 Re1 a1Q Bb6 Nd4 Nf7 Ng4+ Kd5 Rh7 e5 Ne2 Be4 Rh5 Rh2 Qeg5 Kc5 Qg3 Kb5 Qe7 Ka6 Nfe3 Kb7 f1B Kb8 Ng2 Rh1 Qg5 Rh2 Q5e3 Rh1 Qc5 Rh2 Be6 d7 Be7 d8N Bd7 Nb7 Bh4 Rd1 Qge3 e6 Ne5 Rd5 Ng6 Rd6 Bc8 Rd7 Be1 Re7 Bd7 N5h6+ Kh7 Bd4 Nef4 Nfd8 Qc4 Nf5 N6h4 Bc3 Qb4 Bcd4 Bb5 Nf7 Ne2 N5d6+ Rf5 Bb2 Ba4 Rh1 Ng6 Rh2 Rb5 Nf5 Ne5 B2d4 Qc5 Bc3 Kg6 g8Q+ Kf6 Qg4 Qd3 Nd4 Ng6 Qf4+ Kg7 Nf5+ Kg8 Bg7 Qf3 Rh1 Qh5 Rf1 Qh4 Rf3 h2 Rh3 Qg4 Rh5 Qh3
k2N1BQ1/1qRNQr2/prr1P1KQ/1qRQ4/b2b1n2/P2P2q1/1b5B/7R w - - 0 1 illegal: No possible last move
1Nn1BR2/r2RP3/2K1rqBQ/PP2Q2r/2Q3qb/2N3pn/1kq3Rn/5R2 w - - 0 1 legal: proof: f4 e5 fxe5 b5 b4 a5 bxa5 h5 c4 d6 g4 Bf5 gxh5 Bd7 Ba3 Bc6 Bc5 dxc5 Qb3 b4 Qd1 Bb5 cxb5 Rh7 Nh3 Rh6 Ng1 Rh8 Kf2 Kd7 Kf3 Ke6 Ke4 g5 h4 b3 a4 c4 d4 c5 h6 c3 h5 c4 h7 g4 a6 b2 a5 c2 a7 c1Q h6 c3 Rh2 g3 Qa4 c2 Rg2 Nd7 Nf3 Be7 Nc3 Nb6 Qc4+ Nd5 e3 b1Q Bd3 Qbb2 Rb1 Qg1 Rf1 c1R Bc2 Bh4 Bb1 Rb8 a8R Qf6 Bd3 Rb7 Rf8 Re1 Bc2 Kd7 e6+ Kd6 e7 Ra7 e8B Nge7 Ne5 Nc8 Nc6 Nf4 d5 Nh3 Nb8 Qh2 Bd3 Qf3+ Kd4 f5 e4 f4 Bb1 Qg4 e5+ Ke7 Kc5 f3 e6 f2 Be4 Nd6 Kc6 Re2 B4g6 Qa1 Rg8 Kf6 e7 Re6 Rf8+ Ke5 Bef7 Rg8 h8Q+ Rg7 h7 Qb2 Qb3 Kd4 Be8 Qc2 Qa2 Qcf5 Qe2 Qf6 Qe5+ Kc4 Qg8 Kb3 h8Q Rh7 Qf7 Rh5 Qh6 Nc4+ d6 Ka3 Kc5 Kb2 d7 Nd6 d8R Qgf4 Rd7 Qg4 Rgg1 Qg2 Kb6 Q2e4 Rg2 Qc2 Re1 f1N Kc6 Nh2 Rf1 Qg7 Qff4 Qf6 Qc4 Nc8+
4RN2/1KNPQ2N/qB2rR1r/q5PB/3pnP2/3n4/Qb1qrn1k/4N1R1 w - - 0 1 legal: proof: c4 b5 e4 d5 a4 g5 axb5 f5 exf5 c5 d4 Be6 dxc5 d4 h4 Bd5 cxd5 gxh4 Ke2 Kd7 Kf3 h5 Ke4 e5 f4 a5 b4 h3 g4 h2 g5 h4 d6 a4 Kd5 a3 f6 a2 b6 e4 b5 h3 c6+ Ke8 b7 Kf7 b6 Kg6 c7 Kf5 c8R e3 d7 e2 f7 Kg4 Qd2 Kg3 Nf3 e1Q Be2 Na6 Kc6 Kg2 b8N Bc5 f8N Qg1 b7 Qd1 Nc3 Qa5 Ne4 Nf6 Re8 Rh6 Ba3 Bd6 Re1 h1N Bc5 h2 Bb6 Nc5 Na6 Nd3 b8Q Nhf2 Qd8 h1R Nc7 Ba3 Kb7 Ra6 Qe7 R1h2 Rg1+ Kh3 Rc1 a1Q Qa2 Qdd2 Ne1 Bb2 Bh5 Rg2 Rc6 Kh2 Nc3 N6e4 N3d5 Ng3 Nf6 Nge4 Qb1 Q1a3 N6h7 Q3a4 Rf6 Qc4 Ba7 Re6 Qa2 Qca6+ Ka8 Ng4 Kb8 Re2 Bb6 Qc4 Kc8 Ngf2 Kb7 Qca6+
5bQ1/P1RrNN1Q/P5n1/2PR1q2/qK2k3/1Brp4/4r1nn/NQQ2q1B w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 f5 dxc5 h6 f4 b6 g4 Ra7 gxf5 Nc6 e4 Nb8 e5 Ba6 f6 Ra8 f5 Bb7 Bg5 hxg5 Na3 Qc8 Nb1 Kd8 Qd5 Kc7 Qd1 Bd5 e6 Kc6 Qh5 Qd8 Qd1 Bf3 Kd2 Bh5 Ke1 Bf7 exf7 Qe8 Qc1 Qc8 Qd1 Qd8 Kd2 Kd5 Kc3+ Ke5 h4 d5 a4 g6 h5 e6 h6 g4 c6 g5 c7 b5 c8B g3 h7 g2 a6 g4 a7 g3 a5 Qe7 a6 Nh6 Ra5 Nc6 Nh3 g1Q Nd2 g2 Bc4 Qe8 Qb1 Ne7 Kb4 d4 Bb3 Ng4 c4 Qf1 Bb7 g1R Ng5 Rd8 Bc6 Rg8 h8Q Rg2 Rh7 Re2 Bh1 Nh2 Rg7 Rd6 Qh7 Ng6 Qc1 Kf4 Qb1 e5 Qc1 Be7 f8Q e4 f7 e3 f6 Qc6 Qb8 Rc8 f8N d3 Nd7 Bf8 Ne5 Rd7+ Re7 Qe4 f7 Qf5 Nc6+ Rcc7 Bc2 Qd1 Nb3 Qf1 Na1 Qd1 Kb3 b4 Rd5 Qf1 Ka4 b3 Kb4 b2 Bb3 b1Q Qb5 Qa2 Qb8 Bh6 f8Q Qc2 Qfg8 Bf8 Nf7 Qa2 Kc5 Qa4 Qb6 Rd2 Qb7 e2 Qb8 e1N Qb6 Qa2 Kb4 Ng2 Qg1 Rc8 Qb1 Re2 Qc5 Rd6 Rc7 Rd7 Ne7 Ke4 Qc6 Nh4 Qch6 Ng6 Qhc1 Qa4+ Kc3 Ne5 c5 Rb8 Bd1 Ng6 Bc2 Qa3+ Kc4 Rb3 Bd1 Qa2 Bc2 Ra3+ Kb4 Rc3 Bb3 Qa4+
1nbN3Q/B3R2n/2P1np2/2qbP3/1R2b2B/R2b3b/2B2NPQ/r1BK1k2 w - - 0 1 illegal: No proof kernel
R2nB3/BNK2P1R/3R3n/1p1nbnr1/knb3P1/1q2P3/4RNQ1/2BbQ3 w - - 0 1 legal: proof: c4 b5 b4 d5 h4 g5 hxg5 a5 cxd5 axb4 e3 e5 Ke2 f5 e4 Ra3 exf5 e4 Ke1 Rf3 Ke2 e3 Kd3 e2+ Kc2 Re3 dxe3 Nf6 Kd2 Ng8 Kd3 Kd7 Kd4 e1N Ke5 h5 a4 c5 f4 h4 g6 b3 g7 b2 d6 Kc6 d7 h3 a5 h2 f6 c4 a6 c3 f7 c2 f5 Rh5 a7 Rh3 a8R Kc5 f6 Kb4 Bd3 Nh6 g8Q Rg3 R1a2 Bg7 Kd6 Nc6 f8B Rg5 Nd2 b1B Bg6 Nd3 Nc4 Nf4 Nh3 Nd5 Be8 Kb3 f7 Be5+ Ke6 Qa5 Qe1 Qa3 Na5+ Ka4 Bc5 Bb7 Rb2 Ba2 d8R Qb3 Rd6 Nd8+ Kd7 Bc6+ Kc8 Bd7+ Kb8 Bg4 Ba7 Bf3 Nf2 Bd1 Bd2 c1N Nb7 Nd3 Bc1 N3b4 Re2 Qa3 g4 Bc4 Qh7 Qb3 Qe4 Bg3 Qg2 Be5 Rg1 h1N Rf1 Nf4 Kc7 Ng3 Rh1 Ngf5 Rh3 Ng8 Rh8 Ngh6 Rh7 Nfd5+
bn1q2N1/1QRN1BPP/5b2/2n1N3/2bbRK2/1rq1Q1Pb/Q4p1B/3kN3 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 a5 Qh5 d4 Qh6 Ra7 Qxh7 Rd7 d3 Rd5 exd5 c4 Qh4 cxd3 Qh6 Ba6 Qh7 Bc8 Kf2 Kd7 Kf3 Kd6 h4 Ke5 c4 f5 b4 a4 g6 a3 h5 e6 d6 d2 g7 d3 h6 Kd4 c5 a2 c6 e5 b6 f4 d7 Qh4 d8Q+ Kc4 Qe4+ Kb3 b5 Kc2 b7 Nf6 c7 Nfd7 b6 Nc6 b8N Nb4 h7 Nc6 b7 Be7 Qg8 d1B+ Be2 Qg5 Rh4 Qf6 Kg4 f3 Nd2 f2 Ngf3 Qf8 Qgd5 Bf6 Nc4 Qe8 Bf1 Be2 Bf4 Rg8 Rd1 a1B Bh2 Qe7 Qed4 d2 g3 e4 Ne5 e3 Qa2+ Bb2 Ra1 d1B Qf4 Ba6 Bc4 e2 Qe3 e1Q Bf7 Bde2 Rd1 Q1b4+ Rd4 Bac4 Rd6 Bed3 Ne1+ Kd1 Re6 Qe8 Re7 Bd4 Kf3 Bd5+ Re4 Nc5 Kf4 Bh3 c8N B3c4 Rc7 Qc3 Nbd7 Qe7 b8Q Re8 Qb4 Qd6 Ne7 Rb8 Nf8 Qd8 Ng8 Rb5 Qbb2 Nb8 Nfd7 Ba8 Qb4 Rb7 Qb5 Rb6 Qba6 Rb5 Qb7 Rb3
1kn3Q1/1B1n2BK/4b2P/1NN2NR1/brq2Rb1/P3bq1P/Qp1N2R1/n7 w - - 0 1 legal: proof: c4 b5 b4 a5 d4 d5 g4 h5 gxh5 e5 f4 axb4 fxe5 c5 cxd5 c4 Qa4 Ra6 Qb3 Rc6 Qd1 Rc5 dxc5 Bd6 Nd2 Be7 Nb1 Bf8 Kf2 Kd7 Kg3 Kc7 Kf4 f5 e4 b3 h6 b4 c6 g6 h3 b2 a3 b3 d6+ Kb6 e6 Ka7 d7 c3 e7 c2 Kg5 f4 c7 f3 e5 f2 e6 Rh7 Bg2 f1B Rh2 Bb5 Qd2 Ba4 Nc3 b1B Bb7 Ba2 Bb2 c1N Rg2 Rf7 Qc2 Rf4 Nf3 Rb4 Nd2 Qe8 d8Q Qc6 e8N Ne7 Nce4 Nd7 Nc5 Qf3 Bg7 b2 Nd6 Bd5 Nf5 Nb3 Rag1 Na1 Qb1 Bc4 Qa2 Be2 Bc3 Bg7 Qh8 Bd4 Qg8 Bf2 Bg7 Bd4 Rg4 Be3+ Rf4 Bed1 Rg4 Be2 Kh4 g5+ Kh5 Nd5 Kg6 N5b6 Rg2 g4 e7 g3 e8N Bed1 Rh2 g2 Kh7 g1Q Ned6 Qgf1 Rg2 Qc4 Rg5 Ne5 Rg2 Be6 c8R Ned7 Rf8 Nc8 Nb5+ Kb8 Rf6 Qfd5 Rfg6 Bg4 Rg5 Qf3
b1r1BNN1/1QbK1N2/4PB2/3PQ1n1/Bq1Rb2p/rq2kB2/2Pqb3/7R w - - 0 1 legal: proof: f4 e5 h4 exf4 a4 g5 hxg5 b5 axb5 Qf6 Ra5 Qe7 Ra1 Qd8 d3 c5 Ra6 d5 Ra1 c4 dxc4 Bh6 Ra2 Bg7 Ra1 Bf8 Be3 d4 Bc1 Nd7 Rh5 Nb6 Rh1 Nd5 cxd5 Be6 Na3 Bf5 Nb1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 b4+ Kc4 g4 a5 e4+ d3 g6 f5 g7 a4 b6 f3 g5 a3 b5 h4 b7 a2 b8N f4 b6 f2 g6 f3 b7 Bg4 Nh3 Bh5 Ke6 Kd4 e5 d2 Qe2 d1Q Nc3 Ra3 Bg2 f1B Ng5 f2 Nf7 Rb3 Ne4 Rc3 Bg5 Rf3 Nf6 Qb6+ Kd7 Qb3 e6 Qd2 Rd1 Nh6 g8B a1Q g7 Qab1 Bh7 Bb4 g8B Bd6 Bd3 Bg6 Bb5 Be4 Ba4 Bc7 Bh7 Rc3 Bg6 Rc8 Bf3 Qb4 Qe1 Q1b3 Ng8 Be2 Bf6+ Ke3 Bgh5 f1B Bg6 Qc1 Rd4 Qd2 Qg3 Ba6 Qe5 Bae2 Na6 Rd3 b8Q Rc3 Nc5 Bb5+ Ke7 Bc6 Qb7 Be2 Bgh5 Qa2 Bg6 Ra3 Bgh5 Qab1 Bg6 Q4b3 Nd7 Qbe1 Nf8 Qdb4+ Nd6 Nf7 Bgh5 Ng5 Be8 Qbd2 Nf7 Qeb1 Qb4 Ba8 Qb7 Qbb4+ Kd7 Q1b3
Q3N1BR/3R2rR/bP3r2/4BbPB/2P1p2B/kq3N2/r2rb3/q4KnQ w - - 0 1 legal: proof: h4 b5 a4 g5 axb5 c5 hxg5 c4 e3 c3 Ke2 cxd2 Nc3 e5 Kf3 d5 Nb1 d4 Kg3 d3 f4 e4 Kf2 Nc6 Qg4 Bd6 Qd1 Nd4 exd4 Be5 fxe5 Bb7 Ra4 Ba6 Ra1 Bc8 b4 Ke7 g4 a5 b6 f5 b7 h5 b8R f4 d5 h4 e6 Kd6 b5 Kc5 c3 h3 g6 f3 g5 a4 e7 a3 e8Q a2 b6 h2 g7 Rh7 d6 Bf5 d7 Nh6 g8B Nf7 Bb2 Rg7 Na3 Ne5 Be2 Qc8 d8B Qe6 Qc1 d1B Nb5 d2 Kf1 f2 Bh5 Nf3 Nd6 Qb3 Bc7 Ra4 Rb1 a1Q Rd8 Ra7 Rd7 Ra2 Qa8 Be2+ Kg2 f1R Ne8 d1R Bg3 Ba6 c4 Kb4 Bh4 Rd6 Qd1 Rf6 Qc1 Rd1 Kf2 Rd5 Kf1 Rd2 Be5 Ka4 Qd1 Ka3 Rb2 Nd4 Rc2 Ne2 Nf3 Ng1 Rc3 Rgg6 Rh7 Rg7 Rd3 Ne2 Rg1 h1B Rg2 Ng1 Rh2 Rdb2 Rd7 Rd2 Ne1 Bf3 Rh3 B3g4 Qf3 Rc6 Qh1 Bd1 Nf3 Rf6 Rh8 Qd4 Bg6 Rf8 Be1 Rff7 R3h7 Rf6 Bh5 Qa1 Bh4 Be2+
R1BN3N/qrb2P1b/R1K5/p2bq1QR/P3Rq1B/Q1N2P2/4n1qk/4r3 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 gxh4 b4 c5 bxc5 f5 exf5 Nd7 Bc4 Kf7 Bf1 Nb6 cxb6 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 a4 a5 d4 e5 g4 b4 g5 h3 f6 h2 g6 b3 f7 h4 g7 h3 f3 b2 b7 Qe7 b8R Qa7 Ra3 Bb7 Qd3 Nh6 g8R Nf5 Nc3 b1B Bg5 Bg7 Rbc8 Rb8 Bh4 Rh6 Rh8 Re6 Rh5 Re8 Nge2 Ng3+ Ke3 e4 Nf4 Re6 Ng6 Be5 Nh8 Ne2 Rb3 Ba8 Rb4 Rb7 Rg1 h1Q Rg6 h2 Bh3 Qg2 Rd8+ Kc7 d6+ Kc6 d7 Kd6 Re8 h1Q d8N Qhh2 Rc4 Rb3 Rc8 Bd5 Ra8 Rb7 Bf5 Kd7 Bh3 Bc7 Bg4 Kd6 Bf5 Rf6 Bc8 Re6 Re7 Ng3 Kf4 e3 Rgh6 e2 Qe3 Bb3 d5 e1Q Qc1 Bh7 Qa3+ Qc5 Rf6 Qeg1 Rg6 Ne2+ Kf5 Qb4 Re8 Qa7 Re7 Kc5 d6 Kd4 d7 Bd5 Re8 Re3 Re4+ Kd3 Kf6 Qc4 Ke7 Qe5+ Re6 Qcd4 Ke8 Qf4 Ra6 Qde5+ Ne6 Kd2 d8Q Kd3 Kd7 Kd2 Bg5 Ke1 Bh4+ Kf1 Qg5 Kg1 Nd8 Kh2 Qg6 Ng3 Qg7 Re1 Qg5 Bc4 Kc6 Ne2 Qg8 Ba2 Qg5 Bd5+
4n1R1/KPQ5/2B1nqP1/2kbNp1n/1b2B1Pb/Rr2b2Q/R4RB1/qN6 w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bd6 b3 Bc8 Bb2 Bb4 Bd4 Bf8 g4 a5 h4 Ra6 Be3 Rg6 Bf4 gxf4 Ra2 Bh6 Ra1 Rg5 hxg5 Bf8 Kf2 Kd7 d4 f5 e4 h5 g6 c5 d6 c4 b6 Kc6 d7 c3 e6 c2 b4 c1B b7 h4 b5+ Kd6 e5+ Kd5 b6 f3 e7 a4 e8B a3 e6 h3 e7 a2 Bg2 h2 Qb3+ Kc6 d5+ Kc5 d6 Qc7 d8Q Rh5 d7 Na6 b8R Rh3 b7 Rg3 Ra8 Qc6 Qc7 Nf6 d8R Be6 Bf7 Bg5 e8B Bh4 Ke3 f2+ Nf3 Bd5 Rf1 h1N Bd7 Bd6 Rg8 Ne8 Kd3 Rh3 Ke3 Ng3 Ne5 Bf8 Kd3 Bh6 Bfe6 Be3 Be4 Nb8 Ra3 Nh5 Kc3 Na6 Bf7 Bc4 Bfd5 Rg3 Bg2 Rh3 Bde4 Bd5 Qd8 Qe6 Bc6 Nac7 Qd7 Qf6 Qf7 Kd6 Kb4 Ne6 Ka5 Kc5 Ka6 Rg3 Ka7 Rh3 Rd1 f1Q Rd2 Rg3 Qc7 Qh1 Nc3 Rh3 Rf1 a1B Nb1 Bc3 Rff2 Bb4 Rde2 Qd1 Rea2 Qd4 Qd3 Qa1 Qf1 Bh6 Qh1 Rb3 Qh3 Be3
1bK2nq1/1P1R4/4P1Qb/k1n1nB2/B2r2QN/1R3P2/2p1b2b/NN2NqR1 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 a5 a4 e5 axb5 f5 fxe5 h6 b3 f4 Ba3 f3 Be7 Qd7 Qc1 f2+ Kd1 Qd6 Bg5 hxg5 Qc2 Qd8 Kc1 Ra6 Qd1 Rf6 Qc2 Qd6 Qd1 Rf3 gxf3 Qd8 Kc2 Kd7 Kd3 c5 Kc4 Kc7 h4 Kb6 e4 g6 d4 a4 d6 a3 Kd5 a2 d7 c4 Ke6 g4 d5 g3 d6 g5 h5 g4 b4 g2 h6 c3 h7 c2 Ne2 g1B Qd4+ Kb7 b6 Ka6 b7 g3 b5+ Ka5 b6 g2 Nc1 Ne7 Nd3 Qc7 Ne1 Nbc6 b8R Ng8 Bd3 Bb7 d8N f1Q d7 Be3 Rg1 Nb4 Nc6+ Ka4 d8Q Bd6 Qg5 Ne7 Qg6 Bh6 Na5 Qf2 Nb3 Qc4+ Kd7 Qd5 e6 Qf1 e5 Ba6 Bf5 Be2 Qdg4 Rc8 h8N Rc4 b7 Nd3 Rg8 Rd4 Rd8 Nc6 e7 Bb8+ Kc8 Qg8 e8B Nc5 Rd6 Ne6 Rd7 Nf8 e6 Kb4 Qg7 Ne5 Ng6 Kb5 Nh4 Ka4 Q7g6 Kb5 Nc3+ Kb4 Rd1 a1N Nb1 Ka4 Rd3 Kb4 N3d2 Nb3 Rc3 Nc5 Nb3 Kb5 Na1 Ka4 Rb3 Ka5 Rf7 Ba7 Ba4 Bb8 Rh1 g1B Rd7 Bh2 Rg1 Bc4 Qe4 Bd3 Qeg4 Be2
5R2/qpn1nQqk/2BRB3/3R4/P3PPb1/q3RN1r/1N2r1qQ/4B1Kn w - - 0 1 illegal: No possible last move, all moves rejected
6RN/Kp3B1R/B3bPnb/k2rP2n/2n1N3/Nn2Pq2/Q3qQ1R/4N2b w - - 0 1 legal: proof: f4 e5 fxe5 c5 b4 f5 d4 a5 dxc5 h6 Bg5 hxg5 bxa5 f4 g4 Ra6 Qd2 Rf6 Qd1 Rf5 gxf5 Kf7 Bg2 Ke7 Bf1 Ke8 Kd2 d5 Kd3 Kd7 Kd4 Kc6 c4 f3 a4 f2 h4 g4 f6 g5 h5 g3 a6 g2 a5 g4 h6 g3 e3 Bd7 a7 Kc7 a8Q Bf5 c6 Na6 h7 Nc5 a6 Kb6 a7 Be6 c7 Bh6 c8B Ne7 Qc2 Ng6 Na3 Ka5 Nf3 g1Q Ra2 g2 Ne1 Qh2 Qe2 Re8 h8N g1N Bd7 Re7 Be8 Nh3 Bf7 Nhf4 Qb2 Qd7 Bd3 f1B Qf2 Qg3 Qg8 Qc6 a8R+ Qa6 Be2 Rd7 Rc8 Ncd3 c5 Nc1 c6 Nh5 Kc5 d4 c7 d3 Rf8 d2 c8N d1N Nd6 Qg4 Ne4 Qf3 Rc2 Nb2 Bd3 Qa8 Ba6 Bg2 Rh4 Bh1 Rd2 Ka4 Kb6 Rd5 Rd8 Qc8 Ka7 Nb3 Rh2 Qc2 Ra8 Rb5 Rd7 Ka5 Rc8 Nc4 Rcd8 Ngf4 Qgg2 Ng6 Rg8 Qcd1 Qa2 Qde2 Qf2 Ka4 Be8 Rc5 Rh7+ Ka5 Bf7 Rd5
RQnb1Qnb/3B1n2/2NN2rR/1RRP2nP/1B3P2/3nr2p/7k/bBK5 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h6 g4 h5 Bc4 g5 Bf1 Qd6 Ra3 Qg6 Ra1 h4 h3 Qh5 gxh5 g4 Nf3 g3 Ng1 Bg4 hxg4 Bh6 Be2 Bg7 Bf1 Bf8 f4 Kd7 d4 c5 Kd2 e5 b4 a5 d6 Ke6 d7 h3 d8R c4 g5 Kf5 d5 a4 g6 e3+ Kc2 g2 g7 e4 b6 c3 b5 e2 b7 Kg4 b6 Kg3 Ra2 e1B Bd2 e3 Ra3 e2 Qc1 Be7 Nf3 g1N Rd6 Rh6 Ne5 Rg6 Nc6 Nd7 b8R Nf3 b7 Bd8 Bg2 Ng5 Be4 Nb6 Re6 Nf6 g8B Nc8 Rd6 Ra6 Be6 Ng8 Bd7 Nf7 Ra8 Re6 Rb3 a3 b8Q a2 Rb5 a1B Qa3 Bf2 Rh2 e1N+ Kc1 Bd4 Bh7 Re5 Rh6 Re3 Qf8 c2 Bb4 Bh8 Nd2 Nf3 Nc4 N3g5 Nd6 Rb6 Rh1 Ra6 Rd1 Kh2 Rd4 Rb6 Rc4 Ra6 Rcc5 Rb6 Kd2 c1N Bb1 Nd3 Kd1 Rb7 Bf5 Rbe7 Bd7 R7e6 Kc2 Rg6 Kd1 Nb2+ Kc1 Nd3+
2RQq2B/8/n2bpQb1/3Qbb1N/P2P2k1/KR2nr2/1R1PR3/4BbNb w - - 0 1 legal: proof: f4 d5 b4 f5 e4 a5 bxa5 g6 exf5 d4 c3 Nc6 cxd4 Nb8 f6 Kd7 f7 Kc6 Qc2+ Kd6 Qd1 Kd7 h4 Kc6 g4 Bd7 f5 Kd6 f6 Bc8 Bd3 Kd7 Bf5+ gxf5 g5 b5 g6 Ra6 Rh3 Rd6 Rh1 Rb6 Na3 Rc6 Nb1 Rc3 Rh3 Rg3 Rh1 Rg5 hxg5 Kc6 Ke2 Kd6 Ke1 Kd7 a4 Ke6 a6 h5 a7 c5 a8R b4 g7 h4 g6 b3 Ba3 c4 Ra2 h3 Nc3 f4 Qh5 f3 Kd1 h2 Kc1 f2 Kb2 f1B Nce2 Qe8 Ng3 Na6 Rb8 Qb5 Bd6 c3+ Ka3 c2 Rb2 Nh6 g8Q c1B g7 Ng4 Qh4 Qd7 Nh5 Kf5 Bg3 Ne3 Be1 Qe8 Qe4+ Kg5 Qd5+ Bf5 Rb7 e6+ Rb4 Bc5 f8Q Rh6 f7 Rf6 Qh8 Kg4 g8R+ Bg6 Qe7 Rf4 f8B Rf3 Qhf6 Bd6 Bg7 Be5 Qc7 Qb5 Rc8 Qe8 Bh8 Bf5 Ne2 Bg6 Qcd8 Bf5 Neg3 Bg6 Rg1 h1B Ne2+ Bg3 Rg2 Nc7 Ng1 Be4 Re2 Bg6 Rb6 Bf4 Kb4 Be5 Rb1 b2 Ra1 b1B Ra2 Bbf5 Kb3 Ba3 Rb2 Bf8 Ka2 Na6 R6b3 Nb4+ Ka3 Bfd6 Rcc2 Na6+ Rc5 Bb8 Rc8 Bbd6+
Q2B1b1n/1Q5Q/1p3P2/1K1Qn1b1/R3n3/PN1PRn2/1B1rNk2/n1n2q1B w - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Nc6 g4 Ra7 f4 Nb8 b4 axb4 f6 Kd7 f7 Ra4 f5 Ra8 f6 g5 h3 Kd6 Be2 Bf5 Bd3 Kd7 gxf5 g4 Bf1 g3 Qc2 Ra5 Qd1 Rc5 Bg2 Rc4 Bf1 Rg4 hxg4 Qc8 Ba3 Qe8 Bc1 Qd8 Ke2 Kd6 Kd3 Kc5 a3 h5 d6 e5 g5 g2 d7 b6 g6 e4+ Kc2 Kd4 Kb3 c5 Ka4 e3 g7 e2 d3 e1B Be2 c4 Rh2 h4 Nd2 Ke3 Qc2 b3 Ra2 c3 Rh1 h3 Kb5 b2 Qa4 b1N Bf3 h2 Qb4 c2 Qf4+ Kf2 Qc7 Nc6 Ne2 g1N Nb3 Ne5 Bb2 c1N Qb7 Nh6 g8Q Bd2 Qh7 Bg5 Bg2 Qc7 d8B Ngf3 Rg1 Nbd2 Bh1 Qc2 Rg4 Qd1 Ra4 Qf1 Qd5 Be7 f8Q Nhf7 Qe8 Bf8 Qed7 Rg8 Qc7 Nh8 f7 Rg7 f6 Rg8 Nc5 Ndb3 Qcb7 Na1 Nb3 Rg6 Bc3 Rh6 Rd2 Rh4 Bb2 Rc4 Rd1 Rc2 Re1 Rd2 Ra5 Bfh6 f8Q Bg7 Qe8 B7h6 Ra4 Bf8 Bg2 h1N Qec6 Ng3 Bh1 Ne4 Qa8 Be7 Qcb7 Nc6 Ng1 Nce5 Re3 Bc5 Ne2 Bf8
2n5/BNb1N2R/b1R4p/1rrPQrR1/1b2n2B/n4Q1P/P1k1b1K1/2N3N1 w - - 0 1 legal: proof: e4 d5 exd5 b5 b4 a5 bxa5 e5 c4 g6 cxb5 Qe7 f4 Qe6 Bd3 Qf6 Bf5 gxf5 Qh5 e4 Qd1 Qe5 fxe5 Ra6 Nc3 Ra7 Nb1 Ra8 Kf2 Ke7 d4 c5 g4 e3+ Kg3 f4+ Kh3 f5 d6+ Ke6 d7 Kd5 d8B Ke4 b6 c4 g5 h6 a6 c3 e6 c2 d5 f3 e7 f2 e8N f1R a7 e2 g6 e1N g7 Nd7 b7 f4 b8Q f3 Be3 c1B Nd2+ Kd3 Nd6 f2 Bh4 Ba6 Qf3 Nb6 Nb7 Nc2 Qe5 Bb4 Kg2 Na3 h3 Nf6 g8N Nc8 Ne7 Rb8 a8R Ne4 Ba7+ Kc2 Nb3 Bf4 Nc1 Rf8 Rb1 Rf5 Rb3 Re1 Rd3 Re3 Rd4 Be2 Rc4+ Rc3 Rc6 Rc5 Qh8 Bc7 Qe5 Nb6 Rh2 Rh8 Rf8 Nc8 Rf7 Re8 Rh7 f1B+ Kh1 Rg8 Rg2 Rg7 Rg5 Rg6 Ra6 Rb6 Kh2 Rbb5 Rc6 Ra5 Kh1 Ba6 Kh2 Bfe2 Kg2 Rb5
b4R1N/1PP1pr2/1Rn1QQNP/1r2R1R1/2nBn2Q/3K4/1b3r1b/3k1B1n w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 a4 Rh7 axb5 a4 Bg5 Qa5 bxa5 Rh6 Bc1 Rh8 Ke2 Kf7 f4 Kf6 h4 d5 c4 g5 c5 g4 c6 g3 c7 g2 h6 a3 b6 a2 h5 Bg7 h7 Be6 a6 Bh6 a7 Bd7 Nc3 Bc6 Kd3 Bg7 Nge2 g1B Rb1 a1R Qb3 Bh2 Rg1 Ra5 Bb2 Rb5 Rg5 Bb7 h6 Nc6 Re1 Rd8 a8R Rf8 Ra6 Ba8 b7 Rf7 Qb4 Bf8 Rb6 Bg7 Kd2 d3 Qe4 Rc5 Nb5+ d4 Nd6 Rb5 Qh1 Bg1 Qh4 Bh2 Kc1 d2+ Kc2 d1N Kd3 Ne3 Ba1 Rf8 Nf7 Nc4 Ne5 Rb1 Ng6 Rb5 Bc3 Kf7 f6 Ke6 f5+ Kd5 f7 Nf6 Ba1 Ne4 Nef4+ Kc5 f6+ Kb4 Bb2 Rhg8 h8Q Kb3 Qh7 Rh8 Qg8 Rh7 Ba3 Bh8 Bc5 Kb2 Re2+ Kc1 Re3 Bg7 Nh8 Kd1 Nfg6 Ng3 Ree5 Nh1 Ke4 d3 Bd4 d2 Kd3 Kc1 Qg4 d1N Qe4 Nc3 Qh4 Rd8 f8Q Ne4 Qd5 Kd1 Qe6 Rdd5 f7 Rb2 Qf5 Rf2 Qe6 Bf6 Qg7 Ra5 f8R Rb5 Rd5 Bfe5 Qgf6 Rf7 Rc5 Bd6 Rcf5 Ba3 Re5 Bb2
3B1Q2/3k1bQ1/B3R1N1/Rn1PP1P1/2K1nQ2/n1n4R/q2Q2pr/r3Nr1r w - - 0 1 illegal: No possible last move
N3b2B/1q1P4/3N1N1k/n1n2Bn1/1P3bQ1/1RK1p1b1/1Pn2Bb1/1Q2B1Rr w - - 0 1 legal: proof: e4 b5 f4 g5 a3 b4 axb4 f5 exf5 gxf4 c4 d5 cxd5 Bb7 Nf3 Ba6 Ng1 Bc8 h4 a5 g4 Kf7 g5 Ra6 h5 Rg6 hxg6+ Ke8 d4 h5 Kd2 e5 d6 c5 g7 Kf7 d7 e4 f6 Kg6 f7 f3 d5 h4 d6 c4 Kc2 h3 Ra2 f2 Nd2 h2 Bh3 f1B Ne2 c3 Nd4 a4 Nb5 a3 Nc4 Bg2 Rg1 h1N Nc7 Qe7 d8B Nh6 g8N Nc6 Na8 Qb7 Nf6 Bd7 Bd2 Na5 Qb1 Be8 d7 Ng3 Bb6 Bd6 f8B Nf7 Bf2 Be5 Ra1 a2 Nd6 Rh7 Be6 Rh1 Bde1 Bf4 Bh6 e3 Kd3 c2 Bg7 c1B Bh8 Ne4 Bh3 Nc5+ Kc3+ Qe4 Nh5 Kh7 g6+ Kh6 g7 Qb7 g8Q Ng5 Bf5 Bd2+ Kc2 Bc3 Nf6 Bce5 Qc4 Bh2 Qg4 Bef4 Kc3 Bhg3 Qe4 Qa7 Rd1 a1N Qb1 Qb7 Rd3 Be4 Kd4 Bc6 Rb3 Nc2+ Kc3 Bg2
5bB1/1PRP1B2/1KN2n1Q/1Q1b4/3rk1nb/bQ3n1P/2NBBRp1/2nq4 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Rh6 f4 exf4 axb5 a4 Nc3 Ra7 Nb1 Ra5 bxa5 Rh8 Kf2 Ke7 e4 Kd6 d4 g5 a6 c5 h6 f5 a7 a3 a8B a2 b6 f3 Ke3 c4 h3 g4 h7 f2 e5+ Kd7 d6 Ke6 d7 g3 Nf3 c3 Be2 c2 Rf1 g2 Bd2 c1B Na3 Bb7 Qb3+ Bd5 Nc2 Bb2 Rac1 a1B Bc6 Nh6 b7 Rg8 h8Q f4+ Kd3 Kf5 e6 Rg3 e7 Ng4 e8B Bba3 Qh6 Bc3 Bf7 Bcb2 Rfe1 f1N Bb5 Bc3 Bc4 Nfh2 Rf1 Bcb4 Rf2 Bbe7 Kc3 Bh4 Bg8 Ke4 Qb5 Qc7 d8Q Qd6 Qdb6 Nd7 Kb3 Ndf6 Ka4 Qd8 Ne5 Rd3 Ka5 f3 Nc6 Qd7 Qb3 Qd6 Q6b5 Qd7 Rff1 f2 Kb6 Nf3 Bf7 Be6 d5 Rd4 d6 Bd5 Rfd1 f1N Bg8 Qg7 d7 Ng3 Rf1 Qe7 Rf2 Qb4 Be3 Qe1 Bd2 Qd1 Ne7 Bc6 Bcf7 Bd5 Nc6 Ngh5 Ne1 Nf4 Rc3 Nd3 Nc2 Bab4 Nb8 Ba3 Rc7 Nc1 Nc6 Ra4 Be8 Rc4 Bef7 Rd4
1N5q/1NQq2NB/KN1n1nBr/pnq1q1Q1/5b1R/P2PR3/2k3PR/5q2 w - - 0 1 legal: proof: b4 c5 bxc5 b5 e4 g5 h3 a5 Bb2 d5 Bf6 Bg4 hxg4 Ra6 f3 Rd6 f4 e5 exd5 e4 Bd4 Re6 Be3 Re5 fxe5 Qc7 Bf4 gxf4 Rh2 Qb6 Rh1 Qd8 Ke2 Ke7 c4 f5 g5 h5 g6 h4 c6 h3 e6 Kd6 g7 Kc5 c7 Kb4 c8R h2 e7 e3 Kd3 e2 e8N e1Q d6 f3 d7 f2 c5 f4 c6 f3 a3+ Kc5 c7 b4 Qc1+ Kd5 Nc3+ Ke5 Kc4 b3 Kb5 Kd4 Nge2+ Kd3 Na4 b2 Nb6 Nf6 g8B b1N Ng7 Nc6 Ka6 Nc3 Bh7+ Nce4 Nd4+ Qe2 Ra2 Na7 Nc6 Bd6 Nb8 Bf4 Qc5 Qe8 d8N Nb5 Qg5 Qd7 Bg6 Rh3 Nb7 Rh6 Ra1 Kc2 Re1 Qc4 Rh8 Qc5 Re3 Qe5 Be2 f1Q c8Q+ Qc5 d3 f2 Bh7 Qa1 Qc7 f1Q Bh5 Ned6 B5g6 Qac3 Rhe8 Qca1 R8e4 Qe5 Rd4 Bg3 Rh4 Bf4 Rg1 h1Q Rh2 Nd5 Rh4 Qhh3 Rh1 Nf6 Rh2 Qhf3 Bf5 Qh5 Be4 Qhe8 Beg6 Qh8
3Q4/1BRr1Nkq/r2PPNq1/Rb2K2R/1B3Q2/1P1q1Rn1/3pq3/1Nr2q2 w - - 0 1 legal: proof: g4 d5 f4 b5 a4 e5 axb5 exf4 c3 h5 gxh5 d4 Kf2 c5 Ke1 c4 Ra3 Nc6 Ra1 Bb4 Bh3 d3 Bf1 Nd4 cxd4 c3 Ra4 c2 Ra1 Bc3 dxc3 Qg5 Ra6 Qd5 Ra1 Qd8 Kd2 Kf8 e4 g5 h4 f5 h6 a5 h5 f3 Ke3 g4 Kf4 a4 d5 a3 e5 a2 b6 f2 h7 g3 b3 g2 b7 Qf6 b8Q Ra4+ c4 Qd6 h6 Qc6 e6 Qb5 Ba3+ Qb4 Rh3 c1R Ke5 f4 c5 f3 c6 Ne7 c7 Qb5 Ne2 g1Q Bb4 Ra6 Nec3 Qg6 Bg2 f1Q Ne4 f2 Nf6 Qe2+ Re3 Rg8 h8N f1Q h7 Kg7 Nf7 Nf5 h8R Rd8 Rh5 Bd7 c8R Ng3 Rc7 Qh1 Qf1 d2 Qf4 Qbd3 d6 Bb5 Bb7 Rd7 Qd8 Qh4 Rg5 Qh8 Rh5 Qhh7 Na3 Rg1 Rd1 Qh2 Rf3 Rf1 Rb1 a1Q+ Rb2 Qd1 Nb1 Rh1 Ra2 Qhe2+ Qe3 Qde1 Ra5 Q1f2 Qe4 Rc1 Qe3 Qef1 Qf4 Q2e2+
2K2qQ1/B4b1P/1q4Bp/3Qr3/1R1rRBP1/1N2RnP1/k3B1rN/1r3qr1 w - - 0 1 illegal: No proof kernel
1rN2B2/5P2/1R3r2/RB3qkn/rPQ1Pr1r/3p1Qq1/4Q1rN/bQR4K w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 f4 f3 e5 Qd3 Nc6 Qd1 Nce7 Ke2 Nf5 Ke1 Bb7 exf5 e4 Bd3 e3 Bf1 Be4 fxe4 Qg5 Qg4 Qe7 Qd1 Qd8 h4 Ke7 b4 Kf6 c4 d5 b6 g5 b7 a5 b8R g4 c5 e2 Kf2 e1Q+ Kg2 a4 h6 d3 c6 g3 h7 a3 h5 d2 c7 a2 c8Q d4 h6 Qe3 Qc4 Qa3 Rb6+ Kg5 f6 Qd5 f7 Qf5 Qf3 d1R Nc3 Rb8 Nb5 Bg7 Na7 Nf6 Nc8 Nh5 Bd3 Qb3 Qe2 Rf1 Nf3+ Kg4 Nh2+ Kg5 Be3 Bf6 Rc1 a1R Rg1 Ra5 Kh1 Ra4 Ra1 Rf2 Rgc1 Rg2 Bg1 f3 Ra2 f2 Qf3 Rf8 h8Q f1R h7 Rd8 Qe8 Rd6 h8Q Be5 Qec6 Rf6 Qa6 Qc3 Bb5 d3 Qc4 Qe1 Qc2 Ba1 Qb1 Qe3 Qe2 Qef4 Ra3 Rf3 Bc5 Qc7 Qd8 Rf4 Bf8 Rh4 Qd4 Rf2 Qde3+ Rff4 Q3f3 Qd6 Bc6 Qc7 Qc4 g2+ Kg1 Qce5 Bb5 Qd6 Kf2 g1R Ra2 Rf1+ Kg2 Rf2+ Kh1 Rg2 Ra3 Qd4 Ra2 Qf2 Ra3 Qg3 Ra2 Raa8 Ra5 Ng7 Ra2 Ra3 Qff1 Nh5 Qff3 Rb3 Ra8 Ra3 Ra5 Ra4
3Kq1Q1/N1RBP3/2qkbb2/2qr2pb/1N6/P1Pr3B/1q3Q2/q1BRN2B w - - 0 1 legal: proof: d4 a5 h4 e5 g4 g5 b4 c5 f4 f5 h5 Ne7 dxc5 Ng6 hxg6 Nc6 fxe5 axb4 Bb2 f4 Ba3 Nd4 Bc1 Nf5 gxf5 Qa5 Rh5 Qc7 Rh1 Qd8 Kd2 Ke7 Kd3 b5 Ke4 h5 Kd5 f3 e4 h4 f6+ Ke8 f7+ Ke7 c3 f2 e6 b3 c6 d6 g7 h3 g8B b2 e5 b4 c7 h2 Kc6 d5 Bh3 f1Q Na3 b1Q Nc2 b3 a3 d4 Qd2 d3 Qf2 d2 Nb4 d1B Nf3 b2 Ne1 Bh5 Bh7 Qd4 Be4 Qe2 Rf1 Ra5 Bh1 Bd7+ Kb7 Bg7 c8N+ Kd8 Na7 Ke7 Kc7 Rd8 Bd5 Qbc2 Bh1 Rd5 Rb1 Bf6 Rg1 Qdd1 Rg4 Qcd3 Rc4 Qf5 Ra1 b1Q Rc5 Qbb2 Rb1 Kf8 e7+ Kg7 e8B Kf8 e6 Ke7 Rc4 Rd3 Rc6 Qc5 Ra1 Bc8 Rb1 R8d5 Bd7 Ba6 Ra1 Bc4 Kc8 Qa4 Rc7 Kd6 e7 Qe6 f8Q Qac6 Qh4 Qg8 Kd8 Qf7 Qf2 Ba2 B1g2 h1Q Qg8 Qh7 Bd2 R5d4 Nf3 Qf7 Re1 Qg1 Bh1 Be6 Rc1 Qd1 Ne1 Rd5 Ra1 Qdb1 Be3 Q1a2 Rd1 Qaa1 Bc1 Qe8+
q6r/KN2qb1p/2QQ3R/5rPP/1B2B2k/1N1P1qN1/1N2R2b/1qb2Rr1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 g4 g3 f5 Ke2 Nh6 Ke1 Nf7 Qe2 Ng5 Qd1 Nd7 Ne2 Nf6 Ng1 Nh5 fxg5 f4 Ne2 f3 Ng1 Nf4 gxf4 Bf5 Nc3 Be6 Nb1 Bc8 Kf2 Kf7 Ke3 Kg6 c4 Kh5 h4 a5 d3 e5 c6 f2 c5 a4 c7 a3 f5 a2 c6 Qd5 f6 Qc4 b6 Qc3 b7 Bd6 b8Q Ra5 f7 Be7 f8R Rd5 Qf3 Bf6 Nd2 Qb2 Nb3 Rd6 Bd2 Be6 c8N Qb1 c7 Bf7 Re8 Rd5 Bg2 f1Q Bb4 Bd8 Qf6 g3 Nb6 Qfd1 c8N Bc7 Nd6 Qf3+ Kd2 e3+ Kc3 e4 Kc4 e2 Nb7 e1B Ne2 e3 Na4 Bd6 Nb2 Rf5+ Kd4 Be5+ Kc5 Bd2 Kb6 Bc1 Ka7 Kg4 h5 Bf4 Rg1 Kh4 Rf1 Bc7 Bh1 g2 Ng3 g1R Qc6 e2 Qd8 e1Q Re2 Be5 Qdd6 Bef4 Re6 Qee4 Rh6 Qe7 Re1 Qd1 Be4 Qf3 Re2 Be5 Nh1 Bh2 Ng3 Qc2 Rb1 a1Q+ Kb6 Qa8 Ra1 Bf4 Rc1 Qb1 Rf1 Qae8 Ka6 Bc1 Ka7 Qa8+
qq1n1r2/R5qN/4R3/3R1q1B/P3n2K/2Pr1pQn/3N1PRQ/2Bkn1Q1 w - - 0 1 legal: proof: e4 c5 b4 f5 d4 a5 dxc5 axb4 g3 d5 exd5 Qd7 Qd4 Qd6 Qd1 Qd8 Be2 g5 Ba3 f4 Bf1 g4 Bc1 f3 h3 Bh6 Bg2 Be6 Bf1 Bf4 gxf4 g3 Bd3 Qd6 Bf1 Bg4 hxg4 Qd8 a4 Kf7 f5 Kf6 d6 Ke5 f6 Ke4 d7 b5 c6 e5 f7 h5 f8Q b3 c3 g2 g5 b4 g6 b2 c7 h4 c8Q b3 g7 h3 Bb5 h2 Qe7 Nc6 Nh3 g1N Qc7 Nf6 Kf1 Rf8 g8R Ra5 Rg2 Qa8 Bc4 Nd8 Qg7 Rd5 Qg3 Rd4 Bf7 Rd3 Nf4 Nh3 Nd5 Ne6 Bh5 Nd8 Rhg1 h1Q Qh2 Re3 Qe1 Kd3 Nd2 e4 Qcg3 Kc2 Ra2 Rd3 Ra1 Ne8 Nf6 b1Q Nh7 b2 Ra2 e3 Ra1 Ne6 d8R Nd6 Rd7 Nd8 Ra7 Qa2 Rb1 Qf7 Ra1 b1Q Ra2+ Qb2 Ra1 Qad5 Rb1 Qb6 Rb5 Qdf5 Rd5 Ne4 Qe5 Qc6 Bb2 Qfb7 Qhf4 Qh2 Bc1 Rf6 Rg6 Qg5 Rg2 Rf8 Re6 Qf5 Qg7 Nhg5 Qh4 Qhe5 Kg1 e2 Qf4 Qb2 Kh2 Nh3 Qg1 e1N Qg6 Qg7 Qb8 Nf6 Kg3 Qa8 Kh4 Kd1 Qbh2 Qbb8 Qgg3 Ne4
3KBq1r/2r1B1R1/3NPq1Q/1Q1Pq1P1/pR1N4/Q7/qn2Qn2/kn2B1n1 w - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kb3 Ke7 Ka4 Kd6 Ka5 Kc5 e4 Kd4 b4 c5+ b6 h5 f5 a6 b5 h4 f6 g2 d6 h3 d7 h2 f7 c4 f8Q c3 e5 c2 e6 Rh7 g5 Rh4 Nc3 Qe8 d8B Nh6 b7 Nd7 b8Q Ne5 Kb6 a5 Kc7 a4 b6 Nd3 b7 Ng4 Qh6 Ra7 Be7 Qf8 Rb1 Nb2 Bb5 f1N Ne4 f2 Be8 Rh5 d3 Nd2 Kd8 f1Q Nd6 Kc3 d4 Nf2 Nf3 g1N d5 Qe1 Nd4 Qe5 Qe2 Qff6 Qg6 Rh8 Qh6 Qf8 Qa8 Qef6 b8Q Rc7 Qbb5 Qe5 Ra1 Nb1 Bf4 c1Q Bg3 Qcf4 Qab8 Nd2 Rb1 Q4f6 Q8b6 Ngh3 Rhf1 h1Q Bh4 Qg2 Q6c5+ Nbc4 Rb4 Nb1 Rh1 Ng1 Bg3 Qge4 Rh4 Qc2 Rf4 Qa2 Bh4 Q6g7 Rf7 Qgf6 Rg7 Ng4 Qcb6 Nf2 Q6a6 Nb2 Qf3+ Kd2 Qa3 Kc1 Qe2 Nc3 Qb6 Kb1 Qbb5 Ka1 Bg3 Nb1 Bh4 Nfh3 Be1 Nf2
2N1R3/r2Nq2n/nNNQ2bR/P2P1BB1/4Qp1r/2b1PBp1/3k2b1/K2n4 w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 b4 axb4 g4 d5 gxh5 c5 cxd5 Ne7 d4 Ng8 dxc5 Ra7 Nd2 Ra6 Nb1 Ra8 Kd2 Ke7 Kc2 f5 Kb2 b5 h4 g5 a4 g4 c6 g3 h6 b3 e6 Kf6 e7 Ke5 e8B Ke4 h5 b4 h7 Bh6 a5 Ba6 c7 Qh4 c8N Qf4 Qe1 Qf2 Nc3+ Kd4 Bg6 Bb7 Nf3+ Kc4 Bg2 Qa7 Nd4 Ba6 Bf3 Qe7 Na4 Bd2 h6 Ra7 Nc6 Nf6 Ra3 Bb5 Ka1 Na6 Nab6+ Kc3 Rh2 Kc2 Qh1 Be1 Bg5 Bd2 e3 Bf1 Ra4 Bg2 Qb1+ Kc3 Qe4 f4 Bf5 Be1 Rh4 Kd2 Rh1 Re8 h8Q Nh7 Qhe5 Rh8 Qd6 b2+ Ka2 b1N Ka1 b3 Rh3 Nf8 h7 Nc3 Rh6 Nd1 Rc4 Rg8 h8N Nh7 Ng6 Rh8 Nge5 b2+ Ka2 b1B+ Ka1 Rf8 Ned7 Rg8 Bh4 Rg4 Bg5 Rh4 Qee5 Bc2 Re4 Bd3 Qd4 Qd8 Re8 Qe7 Qc4 Bb1 B5g4 Bg6 Qe4 Kc1 Bf5 Bc3+ Ka2 Kd2 Kb1 Bb4 Ka1 Bc3+
n4r2/n7/P1N1QQR1/q6K/PQP3Bp/1rRb2p1/N1bR1Qrk/3nB3 w - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 exf5 a5 bxa5 Kf7 f6 Ke6 g4 Kd5 f7 Kc6 f4 Kc7 h4 g6 f5 Bg7 g5 Bf6 Qf3 Qf8 Qe2 Kd8 Qd1 Qg7 gxf6 g5 Kf2 g4 Ke1 Qg5 hxg5 Ra7 Bd3 Ra6 Bf1 Ra8 Kf2 Kc7 Kg3 Kd6 Kh4 Ke5 f8Q d5 c4 h5 a4 b5 g6 b4 a6 d3 g7 d4 f7 b3 f6 d2 Ra2 Kf4 Qe8 e5 f8R d3 f7 b2 Qe7 e4 Ra3 e3 Qe1 d1B Qd7 d2 Nf3 e2 Rc3 Nf6 g8Q Nd5 Qf2 e1Q Qe7 Nc7 Be2 Bc2 Rd8 B8f5 f8Q Nc6 Qff6 Na7 Qge6 Rg8 Rg1 Bd3 Rd5 Raf8 Qb4 Na8 Bd1 Qe5 Rd6 Qa5 Ne5+ Ke4 Be2 d1N Bd2 Bg6 Kg5 h4 Be1 Bf5+ Kh5 Bh7 Na3 b1R Nb5 Rb3 Rg2 Bc2 Rd2 Bf5 Bf3+ Kf4 Nc6 Rg6 Rcd3 Rgg8 Nc3 Rg7 Na2 Rg6 Qf1 Rg7 Rc3 Rgg8 Rgf2 Kg3 Rg2+ Kh3 Qf2 Rg7 Rd5 Bfd3 Rg5 Nb5 Rg6 Na7+ Qfc5 Rgg8 Rd2 Rg7 Be2 Kh2 Qcf5 g3 Qfc5 Rd7 Qcf5 Rd4 Qfc5 Re4 Bg4+ Re2 Qcf5 Rg2 Qfc5 Qd8 Qcf2 Qa5+
2K4Q/2rP2BB/N3R3/3k1nB1/1Pb1pP2/1b2pR1N/6N1/Bb1rnnqQ w - - 0 1 illegal: No proof kernel
2bn1BQn/1Q1K4/3R1Nq1/4kPqq/B1P2b2/N2r3B/P3p1p1/N1R2rB1 w - - 0 1 illegal: No possible last move
2R2NB1/R1Bb3q/3n2N1/q3p3/1P1Q1rP1/bn5k/1NNqpP2/KQR1r3 w - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 f5 h4 g5 hxg5 a5 e4 fxe4 b3 a4 bxa4 Qd6 Bb5+ Qd7 Bf1 Qd8 d4 Kf7 Kd2 Kg6 Kc2 Kf5 Kb2 h5 g4+ Kg6 d6 c5 a5 h4 d5 h3 d7 e6 a6 h2 a7 c4 d6 e3 Na3 e2 Nc2 Rh5 Nh3 Qa5 d8N Bh6 d7 Na6 Bf4 Nc5 Bc7 Ne7 Qb1 Nf5 Bg2 e5 Ne6 Nd6 d8Q Rb8 a8R Bd7 Rc1 h1Q Bd5 Rc8 Ra4 c3+ Ka1 Rb8 Ra3 Rb6 Rc8 Qe4 Ng1 Rh1 Nf3 Re1 Nd2 Qd3 Nc4 Rb7 N2e3 c2 Nb2 Qf5 Ba2 Qf7 Bb3 Qh7 Nf8+ Kg7 Rd1 c1Q g6 Qd2 Rc1 Bf4 Bd5 Kh6 g7 Rb6 Nc2 Be3 Qe8 Kg5 g8N Kh4 Ne7 Kh3 Neg6 Ndb7 Qf7 Rf6 Qg8 Nd6 Na4 Qa7 Rd1 Qc1 Bb3 Rf5 Qd5 Rf4 Qd4 Bd2 Bg8+ Bc3+ Nb2 Qd2 Rc1 Qb6 Ra7 Qb5 Ka2 Qa5+ Na4 Ba1 Re8 Bb2 Rc8 Ba3 Nb2 Be8 Ka1 Bc6 Nd3 Bd7 Nb2 Nb3+
2R2Q1N/RNBQq1b1/4P2n/4nPB1/q1PQ2Q1/q1p2rp1/2N3k1/b2rK3 w - - 0 1 illegal: No proof kernel
1q1kn2r/4r1P1/QP1N3b/1Bn1B3/1B3PbB/2nR3n/2p2N1p/K1QR2Q1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 e5 Kd2 c5 Kc2 h5 Kb2 e4 g4 h4 f4 c4 b6 b3 d6 h3 f6 e3 d5 h2 d7+ Kf7 d6 e2 g6+ Ke6 g7 e1N f7 Ra6 g5 Rh3 g6 Nf3 Na3 Rh7 Nb5 Ne7 g8Q Ng5 Ra3 c3+ Ka1 c2 Bb2 Bh6 f8B+ Nf7 Nh3 Nf5 Qc1 Rh8 Nf2 Ng7 Be5 Ne8 g7 Qc7 d8Q Nd7 Qg5 Ra7 Qg1 Nc5 d7 Qb8 d8B Kd7 Bh4 Ng5 Nd6 Kd8 Qc4 Bg4 Qa6 Re7 Bb5 b2+ Ka2 b1N Rd3 Bc8 Ka1 Nh3 Qg3 Nd2 Rd1 Nb1 Qg1 Bg4 Qf1 Nd7 Nc8 Nc3 Qh1 Ne2 Qg1 Nc3 Bg3 Re6 Bb4 Re7 Nd6 Nc5 Bh4 Bd7 Qe3 Bc8 Qc1 Bg4
2b4N/qB1RBQQB/1R6/b1rP1r1B/3KN3/3p1qPn/N1bP2p1/3k3r w - - 0 1 legal: proof: g4 g5 Nf3 h5 gxh5 d5 Ng1 g4 Bh3 e6 Bg2 d4 Bd5 exd5 b4 a5 bxa5 g3 c4 g2 cxd5 Na6 Bb2 Nc5 Ba3 Ne4 Bc1 Ng3 fxg3 Qd7 Nh3 Qd6 Ng1 Qd8 Kf2 Ke7 a4 Kf6 e4 Kg5 h4+ Kh6 a6 b5 a5 f5 e5 c5 e6 b4 a7 f4 a6 b3 e7 c4 e8B d3 Nf3 c3 Ng5 f3 Ke3 b2 Qf1 c2 Nc3 b1B Kd4 f2 Na2 Be6 Ne4 Bf7 Ba3 c1R Be7 Be6 Bg6 Qc8 Bh7 Bc2 Rb1 Qc7 Rb6 Nf6 Rh3 Rd8 a8B Ng4 Bc6 Bc8 a7 Re8 a8B Qa7 Bab7 Rd8 Bf6 Bb4 Be7 Ba5 Be8+ Rd6 Rh2 Rf8 Beg6 Rc6 Rh3 Rf5 Rh1 Rc5 Bf7+ Kg7 h6+ Kh8 h5 Ra1 Qg1 f1Q Qf2 Qd1 Qf4 Qf3 Rhb1 Nf2 Be8 Rf8 Qf7 Nh3 R1b5 Rh1 Rd6 Rg8 Rbb6 Rg5 Rd7 Re5 Bg8 Rf5 h7 Ra1 Qe6 Kg7 h8N Rg1 Bh7 Rh1 Beg6 Kh6 Qf7 Rc7 Nf6 Kg5 h6 Rc3 Ne4+ Kg4 Qe8 Qf4 Qf7 Kf3 Bh5+ Qg4 Bg8 Ke2 h7 Rf6 Ng6 Rf4 h8Q Qf3 Bh7 Rc5 Qhg7 Rf5 Nh8 Kd1
1B1B3K/2n1NR2/2r2P1r/4P3/3kpQ1R/1Qpn3q/BRb2qP1/NR2r2n w - - 0 1 legal: proof: c4 b5 e4 e5 d4 g5 h4 gxh4 a4 d5 axb5 f5 exf5 e4 cxd5 Bg7 Bf4 Nh6 Bc1 Be5 dxe5 Ng8 Ke2 Kd7 Ke3 c5 Kf4 a5 b4 h5 f6 h3 Kf5 c4 Kg6 a4 Kg7 c3 f4 h4 f5 h2 b6 a3 d6 Kc6 b7 a2 d7 h3 f7 Rh5 f8Q Ra6 b5+ Kb6 Qb3 Rh4 Na3 Rh6 Bc4 Rc6 Rb1 a1Q Bg5 Nf6 Kh8 Nd5 Ne2 Nb4 Nc2 Qa2 Nf4 Nd3 Na1 Qf2 Ng6 Qe8 d8R Bd7 Bf7 Qe6 Ne7 Kc5 b6 Kd4 Rc8 Be8 Rc7 Qc8 Be6 Bh5 Bf7 Bd1 Rb2 Bc2 Bg8 Nd7 b8R Nf6 b7 Ne8 Rhb1 h1R Ra8 h2 b8B Rg1 Qh6 h1N Qh4 Rc5 Qf4 Rg6 Ra6 Rg7 Rh6 Re1 Rh4 Rg6 Nd5 Qe3 Qa4+ Rc4 Bd8 Qg1 f6 Qh3 Be6 Qf2 Rf7 Nc7 Ne7 Nd5 Qb4 Nc7 Qa3 Rc5 Ba2 Rc6 Qb3 Rh6+
1qR3nn/1k1q4/pBN1Rpn1/PQb1NPr1/1PQ4b/6QB/6K1/4R1Qb w - - 0 1 legal: proof: b4 e5 c4 b5 d4 bxc4 dxe5 g5 h4 a6 hxg5 Bb7 a4 Bf3 Nxf3 Ra7 Ng1 Rb7 Qd2 Rb5 Qd4 Rd5 Qxd5 Qe7 Qd1 Qd8 g4 h5 e4 d5 f4 Kd7 Kf2 Kc6 e6 f6 f5 d4 g6 c3 a5 d3 e5 h4 g5 h3 g7 d2 g6 c2 e7 h2 e8R Qc8 e6 Rh5 e7 Kb7 Ne2 c5 Kg2 c4 Na3 c3 Nd4 Qd7 Nc4 Nc6 Ne5 Nd8 Ndc6 Nf7 Rc8 Nh8 e8Q Bc5 Qe1 d1Q Qg3 Qg4 Be3 Rg5 Re1 c1B Bd4 c2 Re3 Ne7 g8Q Qf4 Qc4 Ng8 g7 Bd2 Re2 c1N Rg1 Be1 Bf2 Nh6 g8Q Nd3 Qg7 Ng8 Be3 Bd6 Bb6 Bc5 Qgg6 Qc7 Qd7 Qd4 Qdd5 Qb8 Qb5 Bf2 Qdc4 Qd7 Rh1 Rh5 Q6g4 Rg5 Qgd4 Be1 Qg1 Bef2 Ng6 Be1 Re6 Bef2 Nge5 Nf4+ Kf3 Nfg6 Bh3 Be1 Kg2 Bef2 Qgg4 Bh4 Qg3 Rh5 Q1f2 Rg5 Re1 Nf8 Qe3 Nfg6 Qg1 h1B+
1rBb4/1b3Qp1/qq3nK1/BB6/P3RN1B/RP2Q3/2npN1Pk/3bQ1q1 w - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 Qf3 cxd4 Qh3 h4 Qxh4 b6 Qh7 b5 Kd2 b4 Ke1 b3 axb3 a5 Bd3 a4 Bf1 a3 Nf3 a2 Ng1 Ra3 bxa3 Qb6 Ke2 Qc7 Ke1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 h4 d6 f4 d3 c4 d2 c5 d1B c6 Bd7 c7 Ba4 c8B Nd7 h5 Qc7 h6 Be2 Nh3 Nb6 Bd2 Beb5 Ba5 Be7 Nc3 Bd8 Ne2 Nc4 Re1 a1Q Qg6+ Ke7 h7 Qb6 Qh6 Ne3 f6+ Kf7 f5 Nc2 Qe3 d5+ Kf3 d4 Ke4 d3 Nhf4 d2 Rh6 Ke8 f7+ Ke7 f6+ Kd6 Kf5 e4 Kg6 Ke5 f8B Bd3 Rh1 Bc6 f7 Nf6 Be7 Bb7 f8Q Rg8 h8Q Bc4 Qd3 e3 Qh4 Be6 Qf7 Bg4 Qg3 Re8 Rh4 Qa2 Ra1 Rh8 Nd4 Bd1 Qe1 Re8 Qc3 Rg8 Bb5 e2 Qg1 e1Q Nde2+ Ke4 Qf2 Qg1 Qe1 Qb1 a4 Qa6 Qcg3 Qgb6 Ra3 Qa1 Qg1 Qad4 Qh1 Qg1 Qg5 Ke3 Qe5+ Kf2 Qe3+ Kf1 Qd4 Bc7 Bc3 Nd5+ Be6 Rb8 Rh3 Bd8 Re3 Kf2 Ba5 Qf1 Re4+ Nce3 Bg5 Nf6 Bc8 Qe1 Qc3 Nc2 Qh4+ Kf1 Qe3 Qf2 Qhg3 Qe1 Bh4 Qf2 Nc1+ Kg1 Qe1+ Qf1 Qge3+ Kh2 Nce2 Qg1
R3KBQ1/2kN2p1/2rn2RP/1bq5/R4NP1/nq3pn1/2Pb3N/R3BQ1q w - - 0 1 legal: proof: b4 b5 a4 e5 axb5 c5 d4 h5 dxc5 a5 f4 h4 fxe5 h3 g3 a4 Bg2 Ra5 bxa5 hxg2 Kd2 f5 Kc3 d5 Kb4 Kd7 h4 d4 e4 a3 b6 a2 Kb5 f4 g4 d3 e6+ Ke7 h5 f3 e5 d2 c6 Qd4 b7 Kd8 a6 Qd6 a7 Rh6 a8R Qe7 c7+ Ke8 Nh3 g1N Nf4 Ne2 Ba3 Qf7 e7 Kd7 e8N Qf6 Ra4 Qd6 e6+ Ke7 Qf1 d1Q Nf6 Na6 b8B Ng3 Nd7 Nf6 Nd2 Nfe4 Ba7 Rf6 Bf2 Qb1+ Bb4 Rh6 Be1 Qb3 Rh3 Bb7 c8R Bc6+ Kb6 Rg6 Ra8 Nc7 h6 Rf6 Rh5 Nb5 Rg5 Na3 Rg6 Qc5+ Kc7 Nd6 R8a6 Ke8 e7 Kf7 Kd8 Bb5 R6a5 Re6 Ra8 Rf6 Nd3 Ke6 e8Q+ Kd5 Qf7+ Kc6 Qg8 Re6 Nf4 Kb7 Rd1 a1Q Rb1 Nc8 Rc1 Rc6 Ke8 Kc7 Rb1 Be7 Rd1 Bg5 Rc1 Qg1 Bf8 Qh1 Rd1 Qac3 Ra1 Qc5 Qg2 Bf6 Nf1 Bc3 Nh2 Bd2 Qf1 Nd6+
3Nn3/4p3/1BbQqq1P/2nP3P/B4pNN/BQ1r3b/4R2q/1Kn1RBk1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 d5 axb5 h5 gxh5 d3 f4 a5 Ra4 g5 Na3 g4 Nb1 d4 Ra3 Bh6 Ra1 Bg5 fxg5 Ra6 Nf3 Rd6 Ng1 Rd5 exd5 Qc7 Nf3 Qb6 Ng1 Qd8 Kd2 Kd7 b4 Kd6 h4 Ke5 c4 Ke4 b6 f5 b7 g3 b5 a4 h6 g2 g6 f4 h5 a3 b6 a2 c5 Bh3 g7 Nd7 b8Q Nf8 c6 Qd7 b7 Qg4 c7 Qe6 c8B Nf6 g8N N8d7 Rh2 Ne8 Na3 Nc5 Nf3 g1N Qb3 Ne2 Nc2 Rh7 Kd1 d2 Ba3 Nc1 Qd6 Rg7 b8B Rg3 Nh4 Rd3 Nb4 Ke3 Kc2 d1B+ Kb2 Bdg4 Ba7 Bf5 Rb1 a1Q+ Kc2 Bfg4 Nf6 Be2 Bd7 Beg4 Rh1 Kf2 Rh2+ Kg1 Re2 Bf5 Ng4 Qa2+ Qb2 Qf6 Bb5 Bd7 Nc6 Qe6 Nd8 Bc6 Bb4 Qa6 Ba3 Qf6 Ba4 Qc8 Re5 Qce6 Qb6 Rf3 Ra1 d3+ Kb1 d2 Qb3 d1Q Bb6 Rd3 Ra2 Qf3 Re1 Qh1 Rae2 Qh2
nR3q2/3p3N/QN2q1Pb/nP1N1R1p/2P4k/n3Q1rN/2B1K1r1/2qRB3 w - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 b4 e5 c4 Ke7 b6 h5 b7 a5 b5 d3 g7 e4 g6 Kf6 Qd2 e3 Nh3 e2 Qe3 a4 Nc3 a3 Bd2 a2 Rd1 a1N Na4 Ne7 g8Q Nc8 g7 Nc6 b8R Na5 Nb6 Nc2+ Kf2 Qe8 Be1 d2 Bg2 Rh6 Be4 Rg6 Rf1 Na3 Bc2 Ra6 Qd5 Qe6 Qa8 Rg5 Rc1 d1Q Qa7 Qdd6 Rd1 Qde7 Qb7 Ra7 Qa6 Qe8 Na4 Nb6 g8N+ Kg7 Ne7 Kh6 f6 Na8 f7 Bg7 Bb3 Qf8 Nd5 Kg6 Nab6 Bh6 Bc3 e1Q+ Kf3 Qg3+ Ke2 Qg1 Rf5 Qh1 Bc2 Qg1 Rd4 Qc1 Rd1 Rc7 Bb4 Rc6 Be1 Rd6 Nc3 Rd3 Ncd5 Rc3 Qe4 Rg3 Qe5 Kh7 Qe3 Rg7 g5 Kg6 Qe5 Rg1 Qe3 Qfe7 Kd3 Q7d6 Rf1 Qf4 f8N+ Kf5 Rf2 Kg4 Nh7 Qf8 Ke2 Rg6 Ndf6+ Kh4 Nfd5 Rf6 g6 Rf3 Rf1+ Rfg3 Rf5 Rg2+
5N2/1Kbp3q/P3qBP1/2N2n1k/b1B1Q1pq/R2Q1P2/1Br3N1/3NR1nb w - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 a5 b4 c5 dxc5 axb4 e4 f5 exf5 g5 Ba3 Ra6 Bc1 Rg6 fxg6 Ba6 Qd6 Bb7 Qd1 Bc8 Ke2 e5 Kd3 g4 h4 b3 c4 b2 a4 e4+ Kd4 b4 a5 b3 a6 e3 f3 e2 h6 e1Q c6 Rh7 c5 Rh8 h5 Qde7 c7 Nf6 h7 Bb7 c8N Q7e6 c6 Q6e2 c7 Rg8 h8B Bd6 h6 Nh5 h7 Nf4 Nc3 b1Q Nh3 b2 Nb6 Ke7 c8Q Qh4 Qc4 Bc7 Kc5 Rc8 Nba4 Qe6 Ra3 Ne2 Qe4 Bc6 Nf4 Ng1 Ng2 Bb5 Bd3 Nc6 Bc4 Nd4 Qdd3 Nf5 Nd1 Qa2 Be5 b1B h8N Bc2 Nf7 Qb2 Bh8 Qg7 Nd8 Kf6 Bb2+ Kg5 Bf6+ Kh5 Bb2 Qef6 Ne6 Qh7 Nf8 Qff7 Bhf6 Qe6 Qde3 Bd3 Qd2 Bf1 Qdd3 Bd6+ Kb6 Bc7+ Ka7 Bc6 Nc5 Ba4 Nge3 Bg2 Kb7 Ne2 Rg1 Bh1 Re1 Ng1 Ng2 Rb8+ Ka7 Rb3 Ka8 Rc3 Kb7 Rc2
1q4b1/2P5/3KQB1q/1NQnPP2/4RrN1/3bQ3/pk1q1Npn/1nNB2R1 w - - 0 1 legal: proof: e4 f5 d4 c5 g4 cxd4 a4 h5 gxh5 b5 axb5 f4 Kd2 a6 Ke2 Nc6 Ke1 Nb8 Bh3 e5 Qg4 a5 Qg5 Bb4+ Ke2 Bd2 Bf1 Be3 Qg4 Ra6 Kd3 Rf6 Qd1 Rf5 exf5 e4+ Ke2 Bd2 Qe1 e3 Kd3 e2 Qd1 Be3 fxe3 Nc6 Kd2 Nb8 b4 Kf7 Kd3 Kf6 Ke4 e1Q Kd5 g5 c4 d6 h4 d3 b6 a4 b5 f3 h6 a3 h7 d2 c5 a2 b7 f2 h5 g4 h6 g3 b6 g2 e4 Na6 b8Q Qd7 e5+ Ke7 b7 Qd8 c6 Nc5 c7 Qf8 Rh4 Qe3 Qf3 d1B Qa7 Be2 b8N Bd3 Nc3 Na4 Na6 Kd7 Be2 f1N Nh3 Nh2 Nf2 Qg5 Qfe3 Nf6+ Kd4 Kc6 Re4 d5 Nc5 Qh4 Nb5 Nc3 Bd1 Nb1 Nb3 Be6 Qa5 Rg8 h8N Rg4 h7 Qb8 Nf7 Qh6 h8Q Rf4 Qc3+ Kb6 Qe8 Ka6 Kc5 d4 Kd6 Nd5 Qe7 Kb6 Qc5+ Ka6 Nd2 Ka5 Nb3+ Ka4 Bd2 Bf1 Bb4 d3 Qd7 d2 Qe8 Qh5 Nh6 Bg8 Nhg4 Bd3 Qe6 Qh6 Nc1+ Bc2 Ncd3 Kb3 Nc1+ Kb2 Be2 d1Q Be1 Qg5 Ncd3+ Kb3 Nh1 Qg6 Bh4 Qd2 Nhf2 Qh6 Bf6 Nc3 Rg1 Nb1 Nc1+ Kb2 Bd1 Bd3
4R3/2PQ1Q1N/N3B3/p1K1nQnq/2P3p1/P1bbn2k/qR1R2Rr/B2q4 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 Ke7 e4 Ke8 exf5 a5 g4 b5 g5 d5 g6 Ra6 Qd3 Rd6 exd6 hxg6 Qf3 g5 Qd1 g4 Ke2 Kf7 Kd3 Kf6 Kd4 g5 h4 g3 c4 b4 f4 g2 a3 b3 d7 b2 h5 Qb6 d8R Qd6 c6 Rh6 c7 Be6 Rh2 Bf7 Ra2 Ne7 Nf3 g1N Nbd2 b1Q Rg2 Qc6 Ne4+ Kg7 f6+ Kh7 f5 Nd7 Rab2 Qd6 Nc5 Bg6 f7 Bg7+ f6 Qa2 f8Q Qh2 Qf7 Nh3 Na6 Ne5 Kc5 d4 Bd2 d3 Bc3 d2 Qa4 d1Q Rdd2 Nf5 Qad7 Qe1 Bd3 Ne3 Bf5 g4 Be6 Qd1 Ng5+ Kh8 Bd4 Bd3 Nh7 Ng5 Bc3 Rg6 h6 Qh4 Qfe7 Qh5 f7 Rf6 Bd4 Rf2 Qf6 Re2 Qf5 Rf2 Rb6 Bf6 Ba1 Re2 Rbb2 Rf2 Rg3 Rh2 Rgg2 Bg7 Nf8 Bf6 h7 Kg7 h8R Nc6 Qe7 Bc3 Nh7 Kh6 Re8 Ne5 Qd8 Qh3 f8Q+ Kh5 Q8f7+ Kh4 Rgf2 Kg3 Qdd7 Qh5 Rg2+ Kh3
2R3qB/2p1Qn2/1NQP2PP/1B1bBq1p/3K1B1b/1q1Q2N1/b7/k1n1Rr2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Bc5 axb5 Bd6 g6 Bf8 g4 a5 g5 h5 Na3 f6 Nb1 Rh6 gxh6 Ra6 Ra2 Re6 Ra3 Re7 Ra4 Rh7 Ra1 Rh8 Kf2 Ke7 b4 Kd6 e4 Ke5 d4+ Kd6 b6 a4 b5 f3 Ke3 f5 b7 f2 b6 a3 Nd2 a2 Ne2 Be6 Ng3 Nd7 b8Q Ne5 b7 Nd3 Qa8 Ne7 b8B Nc6 Ba7 Nce5 Qb3 Nf7 e5+ Kd7 d6 f4+ Ke4 f3 d5 Be7 Nc4 Rf8 Kd4 Bh4 Bf4 Nc1 Qd3 Qc8 Be2 f1Q Bb6 Qd1 Re1 f2 Bf1 Qb3 Qc6+ Kd8 d7 Ke7 Be2 f1B Ba7 Qd8 Nb6 Bg2 Rb1 a1Q+ Rb2 Bf5 e6 Kf6 d6 Qa5 e7 Be6 e8Q Qf5 Bf1 Bgd5 Be5+ Kg5 Qe7+ Kg4 Bh8 Kf4 Rb1 Qb8 d8B Qc8 Qd2+ Kf3 Bb5 Qa8 Qd3+ Kf2 Re3 Qb8 Rf3+ Ke1 Rf2 Re8 Ra2 Qa4+ Nc4 Qg4+ Kc3 Bf3 Qg5 Qf5 Qde3+ Kd1 Bdf6 Re7 Qee4 Qg8 Be3 Bg2 Ra3 Re8 Nb6 Ba2 Ra1 Qb3+ Kd4 Bh1 Qb1 Bd5 Bf4 Re1 B6e5 Rf1 Qe4 Qb1 Qe7 Nd3 Qb7 Kc2 Qc6+ Kb2 Ra8 Qd1 Rc8 Qb3 Re1 Nc1 Qd3 Ka1
Rb1kq1B1/PP1P1B1p/pr1R2QN/4N3/b1K5/q7/2QB1bq1/3nn1RB w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 b4 b5 a4 a6 axb5 Bc5 b6 Bg4 b7 Be6 b5 Bf8 b6 Ra7 bxa7 Bc8 e4 c5 Ke2 f5 Kd3 f3 g4 f2 d6 f4 d7+ Ke7 e5 f3 e6 Nh6 g6 Bg7 g5 Qc7 d8R Qg3 Nh3 Bf8 g7 Rg8 g6 Nf5 Ng5 Nd7 Bg2 Ne3 Qc2 Nd1 Kc4 f1Q+ d3 f2 Bd2 Qf3 Na3 Q1e2 Nf7 f1Q Nh6 Qfe3 Bc6 Qfg2 Rg1 Qe2f3 d4 Qee4 Nb5 Qa3 Nd6 Qe5 Ndf7 Qee3 Be4 Ne5+ Kd5 Bd7 Ra8 Nd3 Ne5 Ba4 Kc4 Ne1 d5 Qgg5 Bh1 Qg2 Nef7 Qe5 Ra2 Qb8 Ne5 Kd8 d6 Qc8 d7 Bd6 Rb2 Bb8 Rb6 Rf8 g8B Rf6 g7 Rg6 Bf7 Rf6 Qe4 Rg6 Kd5 c4 g8B c3 Rd6 c2 Kd4 c1B e7+ Kc7 Kd5 Qe8 Kc4 Bb2 Qc2 Bd4 Rf1 Bf2 Rg1 Qf8 e8Q Re6 Qe7 Qe8 Qg5 Rf6 Qgg6 Kd8 Rd4 Rb6 Rd5 Qgh3 Rd6 Qg2
7Q/nB2B1b1/2pRPr2/6Nn/2bpQB1r/nK2P1NR/2P1Q3/1kr3Bb w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 f6 f5 Qe7 h4 Qg7 hxg5 Qg6 fxg6 f5 Bh3 fxg4 Bg2 Be7 Bf1 Bf8 Kd2 Ke7 Kc3 Ke6 b4 a5 g7 d5 g6 h5 e3 a4 b6 h4 b5 a3 b7 a2 b6 g3 Qh5 d4+ Kb3 Kd5 Ne2 g2 Rh3 g1N Bg2+ Nf3 Ba3 Nc6 b8B Na7 b7 Nf6 g8Q+ Be6 Ng3 Bg7 Be7 Bf7 Qf5 Nh5 Nd2 Rh7 Rb1 a1R Qh8 Ra6 Rbh1 Rf6 Nde4 Bg8 Ng5 c6 Bf1 Be6 Ba6 Bg8 Bc7 Raf8 b8B Nd2+ Ka3 Bf7 Bb7 Kc4 Qe4 Kc3 Ka4 Kb2 e6 Nb1 Bf4 Na3 Rb1+ Ka2 Rb5 Rg8 Rd5 Kb1 Rd6 Rh6 Rh2 h3 Kb3 Be8 Rf2 h2 Rf3 h1B Bc7 Rh7 Bb8 Bh6 g7 Bg6 Bc7 Rb8 g8Q Bg7 Qf7 Bf5 Qg6 Ra8 Qd3 Rb8 Qe2 Bd3 Qe4 Ba6 Nf5 Rbf8 Rh3 R8f7 Bh2 Rhh6 Ng3 Bc4+ Kb4 Rf1 Bg1 R7f4 Bb8 Rh4 Bc7 Rhf6 Ka4 Bd3 Kb3 Re1 Rd5 Bb5 Bf4 Rc1 Rd6 Bc4+
Q2b3N/Q1Q3P1/KPnpqbB1/Q3n1bP/2N5/1kb5/1B1pR3/Rrb3R1 w - - 0 1 illegal: No proof kernel
1r6/r1RR2pB/3PP1QP/3N4/1r1rNK1p/2r2nb1/Q1B3qN/1R2Nbk1 w - - 0 1 illegal: No proof kernel
2B1n3/B4P2/NBpQ1rp1/2R3Q1/2QK2r1/1QP2rR1/1n2P1r1/1b1N1rqk w - - 0 1 illegal: No possible last move
R2rk1qN/B1Prrp1P/2Q3r1/1Q4b1/1N2BR2/3B2P1/1BKn2np/5Q1r w - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 e5 fxe5 cxd4 Ra6 g4 Ra4 Nh6 Ra1 Ng8 Nd2 h5 Nb1 g3 hxg3 h4 Bd2 h3 Be3 Bg7 Bc1 Bf8 Kf2 h2 Ke1 Bb7 Bh6 Bf3 Be3 Bg4 Bc1 Bh3 gxh3 Bg7 Bg2 Bh6 Bf1 Bf8 Kd2 a5 c4 d5 e4 d3 b4 a4 e6 d4 e5 a3 e7 a2 b6 Nh6 b5 Rg8 h4 Qd6 h5 Qe6 b7 Qf5 c5 Qd7 c6 Ra5 b6 Ra6 c7 Qa4 Bb2 Rg5 Nc3 Kd7 e8B+ Ke7 e6 Qb3 Nge2 Nf5 h6 Nh4 h7 Re5 Bc6 Bh6+ Nf4 Nd7 b8Q Bg5 b7 Nc5 Be4 Ng2 Be2 Qd5 Rf1 Qd8 Nd5+ Kf8 Kc1 d2+ Kc2 Nb3 Nb4 Qc8 Qe1 d1R Rf3 Ke7 Bf1 Qg8 Ng6+ Kd6 e7 Kd7 Nh8 Rg6 Rf4 d3+ Kc3 d2 e8Q+ Kd6 Qa4 Ke7 Qc6 Ree6 Kc2 Re5 Rb1 a1R Rc1 Ra8 Ra1 Rb1 Bb5 d1R Ra7 Rdd6 Bbd3 Nd2 Qe2 Rg1 Qf1 Rh1 Ra2 Raa5 Ra1 Rad5 Ra8 Rd8 Qa7 R8d6 b8B Rd8 Qaa4 R5d7 Ba7 Ke8 Qab5 Re7
n4Q2/RR1B1bKN/1P2PB2/5NrQ/1r6/p1qp2P1/5RnN/rnNr2k1 w - - 0 1 legal: proof: d4 b5 f4 e5 a4 c5 axb5 f5 fxe5 g5 Ra5 g4 Ra1 f4 g3 Bd6 gxf4 g3 f5 g2 Ra3 cxd4 Ra6 Be7 Ra1 Bg5 Kf2 Bf4 Ke1 Bg3+ hxg3 Qb6 Rh6 Qc7 Rh1 Qd8 Kd2 Kf7 Kd3 h5 Ke4 a5 b4 d6 c4 d3 e6+ Kf6 c5 h4 b6 a4 e7 d2 e8Q Kg5 f6 Kg4 f7 h3 f8N d5+ Ke5 h2 b7 d4 b5 d3 b6 Rh7 c6 Nh6 c7 Rg7 Nc3 Na6 b8R Bf5 c8N Bg6 Ne7 Nf5 Kf6 Qc7 Nh7 Nh4 Nf3 g1N e4 Ne2 e5 Ng2 Bb2 Kh3 Na2 Qc3 Nc1 Nc7 Nf5 a3 Qf8 Ra4 Rb7 Rb4 Ra2 Na8 Ba1 Rc7 Rb2 Rcc4 Kg7 Rg4 Ra2 Rg5 Bb2 Qc2 e6 Qc5 Bf6 Nc3 Qe2 d1R Qe5 Ne4 Rf2 Nd2 Be2 Qc8 Rhf1 h1R Nh2 Qc5 Bf3 Nb1 Bc6 Qc3 Bd7 Nf4 Rf3 Kg2 R1f2+ Kg1 Qec5 Ng2 Rf4 Rb5 Ra4 Rb4 Raa7 Rh5 Nd4 Re1 Nf1 Nd2 Qc4 Rg5 Na2 Ra1 Nf5 Nb1 Qf4 Rb5 Nc1 Rb4 N1e3 Kh2 Qf3 Re1 Qh5+ Kg1 Ng4 Rd1 Nh2 Bf7+
1N3r2/2r1N3/p2R3Q/Qq1K4/1p1BPbP1/nn1PNR1n/5nr1/2B1BN1k w - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 d5 exd5 c6 a4 Nd7 axb5 Nc5 b6 Nd7 b7 Nb8 b4 e5 b5 e4 b6 e3 f3 Bf5 Bb5 Be4 fxe4 cxb5 Ke2 Ke7 Kd3 Kd6 Kd4 f5 g4 h5 c4 a6 g6 e2 g7 e1N d3 h4 Nh3 f4 Qc2 f3 Nf4 f2 Ng2 f1R Qd2 b4 Qh6+ Nf6 g8Q h3 Qgg5 h2 Ne3 Nd7 b8N Ra7 b7 Qa5 Nd2 Rf2 Ndf1 Nc5 Ra2 Rg2 Rf2 Be7 Rf3 Qb5 Qgh5 Rf8 Qf5 Kc7 d6+ Kb6 d7 Bd6 Qe5 Nh7 Kd5 Nb3+ c5+ Kc7 Qa1 Nc2 Qa3 Ng5 Qa5+ Qb6 c6 Nh3 Qc5 Bf4 Qa5 Kd8 c7+ Ke7 c8N+ Kf7 d8B Na3 Qh8 Kg6 Ne7+ Kg5 Qg7+ Kh4 Qh8+ Qh6 Bb6 Qh7 Bd4 Qh5+ Qe5 Qe8 Qd6 Qd7 Nbc6 Qe8 b8B Rc7 Bba7 Qd7 Nb8 Qa4 Bc3 Qd7 Bad4 Qe8 Rg1 h1N Be1+ N1f2 Qdb6 Bh6 Rf6 Bf4 Rd6 Qb5+ Bc5 Rh2 Rg3 Rg2 Rf3 Ng1 Ng3 Kh3 Qc6 Kh2 Ngf1+ Kh1 Qcb6 Qa4 Bd4 Ngh3 Rd8 Rc8 Qh6 Rc7 Rd6 Qb5+
NB4qR/Q2P2Pb/2B3n1/r1PrQ3/1K2Rb1r/B4k1p/1b3pN1/N1N4r w - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 axb5 g5 c4 e5 cxd5 exf4 h4 c4 hxg5 Na6 Na3 Nf6 Nb1 Nc5 bxc5 Ng8 d4 Kd7 Kd2 f5 Kc3 h5 e4 a5 g4 a4 b6 f3 g6 f2 d6 Kc6 g7 f4 d7 h4 e5 Kd5 e6 Ke4 g5 f3 e7 a3 e8N a2 g6 Nf6 g8Q Nh5 b7 Qc7 d8N Ng7 b8B Bd6 d5 Qe7 Qd4+ Kf5 Kb4 c3 Qe5+ Kg4 Qh7 c2 Nc7 Nf5 Nde6 Qe8 Ne2 Qg8 Bg2 f1R N6f4 f2 Ba3 c1R Nd2 Rcd1 Nc1 Ra5 Ndb3 Ne7 Na8 Bf5 Rb1 Bc7 d6 a1B Bc6 Bb2 Na1 Rd5 Ng2 Kf3 Qf7 Rh7 g7 Ng6 d7 Rd1 Re1 h3 Re4 Rh1 Qf8 Qh8 Qc8 Qg8 Qb7 Rh4 Qa7 Nf8 Ncb3 Bh7 Re1 Rh6 Nc1 Ng6 Rh4 Bd8 Rh5 Bg5 Re4 Bf4 Rg5 Rh4 Rh5 Nf8 Rh6 Bf5 Rh8 Bh7 Qb7 Ng6 Qa6 Bd4 Qa7 Bb2
6Bq/rp4N1/2bpKb2/1RP3B1/4QQr1/N1P1RrnP/NQ1b3k/r6N w - - 0 1 legal: proof: g4 f5 a4 h5 gxh5 c5 e4 a5 exf5 c4 b4 axb4 d4 c3 a5 Ra7 a6 Ra8 a7 Na6 Nxc3 Rb8 Nb1 Nc5 dxc5 Qa5 a8Q Qd8 Qa7 Ra8 Qb8 Ra7 Be2 Ra3 Bf1 Ra8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 g5 f4 b3 h3 g4 h6 b2 h7 g3 Na3 b1R Bc4 g2 Qe1 e4 Ne2 g1B Nc3 e3 Na2 Rb2 Rb1 Rb6 Rb5 Kf7 f6 Kg6 f7 Kh5 f5 e2 f6 Bg7 f8N Nh6 f7 Rf6 Ne6 Nf5 f8N Rg8 Qf4 d6 Ng6 Be3 Ne5 Bd2 Ng4 Ng3 Nf2 Ra7 Rf1 Qe8 Nh1 Bd7 Rf3 Rf7 Rd3 Bf6 Re3 Rg4 Ng7+ Kh4 Bb3 Qg8 h8Q+ Qh7 Bc4 Bc6+ Ke6 Qh6 c3 Qh7 Qe8 Qh8 Qef2 Rf8 Qg6 e1R Qge4 Rd1 Bb2 Ra1 Bc1 Be1 Qb2 Bd2 Bd5 Bd4 Qfe5 Rf3 Q5f4 Be5 Ke7 Bd4 Bg8 Bf6+ Ke6 Be1 Re2 Nf1 Be3 Bd2 Qff5 Ra6 Bh6 Ra4 Re3 Ra7 Nf2 Kg3 Nh1+ Kh2 Bg5 Ng3 Qef4 Be8 Q5e4 Bc6
1r3N1K/B3N3/k6N/3RbQpP/1BN2B2/2q4n/1PPq1Qp1/1b1rRqq1 w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 f5 Rh7 g5 Rh8 Be2 Nc6 Bf3 Ne5 Bg4 hxg4 g6 Nf7 Nf3 Qb6 gxf7+ Kd8 Ng1 Kc7 Nc3 Kb8 Nb1 Qd8 Ke2 Kb7 Ke1 Kc7 Ke2 a5 Kd3 Kb7 Ke4 e5 h4 d6 h5 g3 b6 a4 c6+ Ka6 b7 a3 b8B g2 c7 a2 Na3 Ne7 Qe1 Nd5 Qf2 Be6 c8N Nf4 Nf3 Nh3 Ba7 Rb8 Bf4 Be7 Raf1 a1Q f8B Ba2 f7 Bf6 Rd1 Bb1 Nd4 Rh6 Kd5 e4 Ke6 d5 Rhe1 e3 Bb4 e2 f8Q Be5+ Kf7 Rd6 Kg8 Qc7 f6 Qc3 Nf5 d4 f7 d3 Nce7 d2 Nc4 Rd7 Rf1 e1Q Nh6 Qe2 Rfe1 Qf1 Kh8 Qa5 Re2 Qb6 Rde1 d1Q Rd2 Rd6 Rd5 Qdd2 Qf3 Qbg1 Qc8+ Rb7 Qf5 Rb8+ f8N Qdf2 Rb5 Rd1 Rd5 Qfd2 Qf2 g5+
1b3RrQ/1q2B2n/4B3/kP2r1N1/rRKBq1R1/R2QpPb1/2Pp3r/7N w - - 0 1 legal: proof: g4 c5 h4 g5 d4 f5 gxf5 b5 a4 Nc6 axb5 cxd4 Ra4 g4 Ra1 Ne5 f3 Nf7 f4 Ng5 hxg5 Bb7 Be3 Be4 Bc1 Bf3 exf3 Qb8 Qd2 Qc7 Qd1 Qd8 Ke2 d5 Kd3 Kd7 b4 Kc7 f6 Kb6 g6 a5 f7 e5 f5 h5 g7 g3 f6 e4+ Ke2 e3 Kd3 g2 Rh2 h4 Bd2 h3 Rh1 a4 Qc1 a3 Qd1 a2 Ne2 g1B Bc3 h2 Bh3 Rh5 Ng3 Qe7 Be6 Qb7 Nd2 Bf2 Rg1 h1R Nde4 R1h2 Nh1 Bd6 f8B Bb8 f7 Re5 Rg4 Nf6 g8Q Bg3 Be7 Nh7 f8R Ra4 Ng5 Ra8 Rb1 a1R Qh8 R1a4 Ra1 Bd6 Rf7 Rg8 Rf8 Bb8 Qe2 Ka7 b6+ Ka6 Ra3 Kb5 Ba1 Ka6 b5+ Ka5 Rff4 Qc7 b7 Ba7 b8R Qb7 Rbf8 Bb8 Bd7 Qc7 Qf2 Qb7 Ke2 d3+ Ke1 d4 Be6 d2+ Kf1 d3 Rb4 Qe4 Qe2 Qb7 Bd4 d1Q+ Qe1 Qd2 Qd1 Qc3 Qe2 d2 Qc4 Bf2 Ke2 Qb3 Qc3 Q3d5 Kd3 Qe4+ Kc4 Be1 Qd3 Bg3
3RqR1N/k2b1Q2/4QrPQ/2pP1p1R/3B3b/1B2nN1P/1KbQ1b2/r4q2 w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f3 h4 f4 exf4 Nc3 g5 Nb1 h3 gxh3 g4 Ra2 g3 Ra4 Kd7 Ra1 Ke8 Nc3 g2 Na4 Nd7 Nc3 Nc5 Nb1 Ne4 Ra5 Ngf6 Ra1 Ng3 hxg3 Ng8 d4 Kd7 Kd2 a5 Kc2 f3 b4 c6 e4 Kc7 d6+ Kb8 e5 f6 d7 a4 b6 a3 g4 a2 e6 f2 b5 Ba6 g5 Bb7 g6 Bh6 e7 Bc8 e8Q Qc7 d8R Rh7 b7 Ra5 Be3 Ra3 Nc3 Qf4 Kb2 Ne7 Qd2 Qh2 Bc4 f1B Nf3 g1Q Bb3 Bf4 Qf7 Bd3 Ne4 Qe2 Nd6 Qgf1 d5 c5 Rg1 Rh8 Bd4 Be3 Rg5 Rf8 Rh5 Bf2 Rc1 Ka7 b6+ Ka6 b8Q Bc2 b7 Nf5 Rb1 Bd7 Qc8 Ka7 Re1 Qb5 Ree8 Ne3 Qc6 f5 Qc8 Bc6 Qce6 Bd7 b8Q+ Ka6 Qfe7 Rf6 Rf8 Bh4 Qc8+ Ka7 Nf7 Ra4 Nh8 Ra6 Qa5 Bf2 Q7f7 a1B+ Ka3 Bc3 Ka2 Bd2 Kb2 Bde1 Qd2 Ra1 Qc7+ Qb7 Qcd6 Qb8 Qf4 Bh4 Qg5 Bef2 Qh6 Qe5 Qd6 Qe7 Qde6 Qe8
R1KNQ3/1B2b3/3Rp3/2r2n2/1QqB1knP/N1nRp2P/n1QR1Pq1/6b1 w - - 0 1 illegal: No possible last move, all moves rejected
RrB1n2n/BBR3N1/1Q1p2NP/1qb1n1P1/2Nq3p/1bPk4/3N1n2/4QK2 w - - 0 1 legal: proof: d4 b5 f4 c5 h4 cxd4 a4 a5 axb5 e5 fxe5 h5 g4 g5 hxg5 h4 Ra2 Rh5 gxh5 Ra6 Ra4 Rh6 Ra1 Rh8 e4 Ke7 b4 Ke6 h6 f5 b6 d3 b5 f4 b7 a4 b6 d6 Nf3 a3 Be3 a2 Na3 Qc7 Nc4 Na6 b8N Qc6 b7 Nc7 Nfd2 f3 Nd7 Ne8 b8Q Qb5 Bg2 f2+ Kf1 Ne7 Qe1 Bg7 Ba7 Ng6 Qb6 Bf6 Rc1 a1Q Rh3 Qd4 Nf8+ Kf7 Re3 Be6 c3 Rg8 Ra1 Nh8 Ng6 Bd5 Rf3 Ke6 Rf4 Bd8 Rf7 Rf8 Rc7 Bf6 Ne3 Bb3 Nec4 Bg7 Bb8 Bf6 Ra8 Bg7 Ba7 Rg8 Nf3 d2 Bh1 d1N Nd2 Rf8 Rf7 Nc7 Ke2 f1N Bf3 Nf2 Bg2 Nd5 Rc7 Nh2 Bh1 Nhg4 Kf1 Rb8 Bf3 Ngf6 Bg2 Ne7 Bh3+ Kf7 Bc8 Qdc5 Bb7 Nd7 Bc8 Nd5 Bb7 Nf6 e6+ Kg8 e7 Kf7 e8B+ Ke6 e5 Kf5 e6 Qe5 Bc8 Qe3 Nf3 Ke4 e7 Kd3 Nfd2 Qf4 Bf7 Qg4 e8N Qf4 Bd5 Qe3 Rc6 Qec5 Nc7 Ne8 Ne6 Bd4 Ng7 Ne5 Rc7 Be3 Bf3 Qd5 Bh1 Bc5 Bg2 Qd4 Bd5 Nd1 Bdb7 Nf2
1b3B1q/1Nb1B3/P1r1Kp2/P1RP4/BkNpQ3/2Rqr3/B5NQ/n3r1r1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 b4 exf4 bxa5 Ra7 Nf3 Ra6 Ng1 Ra8 Bg2 c5 Bh3 Be6 Bf1 Nd7 Nc3 Nb6 Nb1 d4 d3 Bd5 cxd5 c4 Ba3 c3 Bc1 Nc4 dxc4 Qe7 Nd2 Qf6 Nb1 Qd8 a6 f6 Kf2 Rh6 Kf3 Kd7 Kg4 Kd6 Kf5 Kc5 a4 b5 h4 g5 e4 c2 e5 g4 a5 b4 e6 g3 e7 b3 e8B g2 Ke6 b2 Nf3 g1Q Qe1 Be7 Ba4 Qf2 Na3 b1R Rh3 Qg1 Qe4 Qg2 Ne1 Qg5 Ng2 Rh8 h6 f3 h7 f2 h5 Qe8 h6 Qg3 Bf4 Re1 Rc1 Kb4 c5 Qf8 c6 Rc8 Bc4 f1R c7 Rg1 Ba2 Bc5 Be5 Ne7 Bd6 Nf5 Be7 Qf3 Rg3 Ne3 Rh3 Rg8 h8B Rg3 h7 Qh6 Bg7 Qd1 Ra1 c1B h8Q Nc2 Bgf8 Bf4 Rc1 Na1 Qh7 Rd3 Rf3 Qg7 Qh2 Qh8 Rg3 Rde3 Rf3 R3e2 Rd3 Re3 Rc2 Rd8 c8N Bb8 Nd6 Rc8 Nb7 Bcd6 Rc5 Rc6 Rdc3 Qd3 Nc4 Bdc7+
2BnNQB1/8/1b2qB2/1QP3n1/1nB1PP1Q/2q1p1KR/r3N1qp/R2nk3 w - - 0 1 legal: proof: h4 a5 d4 g5 hxg5 c5 a4 cxd4 f3 b5 axb5 e5 Rh2 e4 Rh3 e3 Rh1 Ra7 Nh3 f5 Ng1 f4 Ra3 Bb7 Ra4 Ra6 Ra1 Be4 fxe4 f3 Qd3 f2+ Kd1 Rf6 Qd2 Rf3 exf3 Na6 Ke2 Nb8 Qd3 Ke7 Qd1 Ke8 c4 Ke7 b4 Kd6 g4 Ke5 b6 Kf4 g6 Kg3 b5 d5 b7 h5 g5 h4 b6 h3 f4 h2 g7 a4 g6 a3 Nf3 a2 Nc3 Nc6 b8Q Qc8 b7 Bc5 Nh4 Bb6 c5 Nd8 Bh3 Qe6 Rf1 Nf6 g8B Nh7 g7 Ng5 Qe1 Rh7 Bb2 d3+ Kd1 d4 Nf5+ Kf3 Nd6 d2 Ne8 Kg3 Ke2 d1N Qa8 Rh8 b8Q Rh6 Rc1 a1N Rb1 Nc2 Ra1 Rg6 Qa5 Rf6 Qb5 Nb4 Qd6 Rf7 Qf8 Ra7 Bf7 Ra2 g8B Qh6 Bc8 Qe6 Rh1 d3+ Kf1 d2 Rg1+ Kf3 Ne2 Nc3 Rg4 d1Q Rh4 Qd3 Rh6 Nd1 Bf6 Qc3 Rh4 Qc6 Bc4 Qe6 Ng1+ Kg3 Rh3+ Kg4 Kg2 f1Q+ Kh1 Qf2 Ne2 Qg3 Rh6 Qh3 Qh4+ Kf3 Rh8 Qg3 Rh5 Kf2 Rh6 Ke1 Rh7 Kd2 Rh6 Qe1+ Kg2 Qf1+ Kg3 Qh1 Qg4 Ke1 Rh3 Qf1 Qh4 Qg2+
n2QR1N1/4QN1b/3p1Q1N/1KR3B1/2qP2q1/P5Pr/q3pbb1/BN3kq1 w - - 0 1 legal: proof: b4 a5 e4 f5 exf5 b5 bxa5 b4 c3 g6 c4 Ra6 Nc3 Rb6 Nb1 Rb5 cxb5 Bh6 Qb3 Bg7 Qd1 Bf8 g4 Na6 f4 Kf7 f6 Ke6 f7 Nc5 f5+ Kd5 f6 Kd6 Bd3 Ne4 Bc2 Ng3 Bf5 gxf5 hxg3 Ke6 Rh2 Ke5 Rh1 Kd6 Ke2 Kc5 Kd3 b3 b6 f4 g5 b2 b7 f3 a3 f2 b8Q f1B+ Qe2 h5 a6 e5 a7 h4 a8N h3 g6 h2 g7 Ne7 Nc3 b1Q+ Ke3 e4 Nb6 Rh3 Nf3 Bg2 Nbd5 Qa2 Re1 h1Q Ng5 Qg1+ Qf2 Kc4 d4 c5 Bb2 d6 Rac1 Bb7 Ba1 Qd7 Qd8 Nc8 Ne7 Qg4 Nf5 Nb6 g8N Bh6 f8Q Na8 f7 Bc6 Qfe8 Ba4 f8B Bc2 Qe5 Bd3 Be7 Bc2 Kd2 Bd3+ Rc2 e3+ Kc1 Bde4 Nf7 Kd3 Nb1 c4 Qe6 Bf4 Bg5 c3 N5h6 Bh7 Qed7 Be5 Qff6 Bf4 Rb2 c2 Rb5 Nb6 Rc5 Na8 Rd1+ Ke2 Re1+ Kf2 Qde6 Qd5 Kb2 Qa2+ Kc3 c1Q+ Kb4 Qcc2 Re2+ Kf1 Kb5 Qc1 Rb2 Qc2 Rb3 e2 Re3 Qc3 Qed7 Qcc2 Re8 Qc1 Qfe6 Be3 Q7e7 Bf2 Q6f6 Qcc4+
4k2n/1BP5/P3K2N/1nN1Rp2/Q2bb1RB/p4NPB/2q2Qn1/2b1nnB1 w - - 0 1 illegal: No proof kernel
2b2Q2/nQ2Bqp1/qq5b/1p3Nq1/1Rn1P3/1B1NR2P/QQP1K1k1/2R3n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 d5 gxh5 d4 f3 e5 Qe2 b5 Qd1 Ra7 Be2 Rd7 Bc4 Rd5 exd5 e4 Be2 e3 Bf1 Rh6 Ba3 Re6 Bc1 Re4 fxe4 Qa5 Bb2 Qb6 Bc1 Qd8 a4 Ke7 d6+ Ke6 h3 Ke5 h6 Kf4 a5 Kg3 h7 f5 h8Q e2 a6 d3 a7 f4 a8Q f3 d7 b3 c6 b2 c7 Bc5 Qa2 Bb6 Na3 b1Q Bg5 Be3 Nc4 Nf6 Qc1 Nd5 Qf8 Nb6 Ne5 Nc6 Be7 Na7 Rh2 Qb3 Qcb2 Qf7 Rc1 Bh6 Rf2 Nc4 Rg2+ Kf4 Rg3 d2+ Kf2 e1N Be2 Na5 Bc4 d1Q Bb3 Qd4+ Kf1 f2 Ngf3 Ke3 Nh4+ Nf3 Nf5+ Kf4 Ke2 Nc4 Bc5 Qde7 d8R Qg5 Be7 Qb6 Rd3 Qa6 Re3 Qff6 Rgg1 Qfb6 Rgd1 Bd7 Rd4 Bc8 Nh4+ Kg3 Nf5+ Kg2 Nd3 Be6 c8Q Bd7 Qb7 Bc8 Kd1 f1Q+ Re1 Qf2 Re3 Qfg3 Ke2 Qgc7 Bd8 Qf7 Be7 Na5 Ra4 Nc4 Rb4 Ng1+
k3K1QR/nR2qPq1/B1N4p/qN5N/2p1b1q1/1n2B2n/Nb3PP1/3R2Q1 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 h4 gxh4 a4 Bg7 axb5 Nf6 c4 Kf8 b6 Ke8 b7 Ng8 b5 Bh6 b6 Bf8 d3 a5 Qb3 c5 Qc2 h6 Qd1 a4 Nc3 Ra5 Nb1 Rb5 cxb5 Rh7 Na3 Rg7 Nb1 c4 d4 Rg6 Qf3 Rc6 Qd1 Rc5 dxc5 Qc7 Ra2 Qd8 Ra3 Nf6 Ra1 Ng8 Kd2 e5 Kc3 d5 Kb4 Kd7 f6 e4 f7 e3 Nc3 e2 Be3 e1Q Be2 d4 Bf3 a3 Nh3 a2 Rb1 a1N Nf4 d3 Nh5 d2 Na2 Bg7 c6+ Kd6 c7 Bf5 c8N+ Kd7 Kc5 h3 Rb2 h2 Na7 Nc6 b8Q Be4 b7 Nf6 b6 Nd5 Nb5 Na7 Rf1 Qf6 Qg8 h1Q b8R Qhh4 b7 Nf4 Rf8 Nh3 b8N+ Ke7 Qc1 d1Q Nc6+ Kd7 Rb4 Qde2 Qb1 Q1d2 Rd1 Qg4 Kb6 Nb3 Rd8+ Ke6 Kc7 Qfg6 Rf8 Kd5 Kd8 Bb2 Ke8 Qg7 Qc1 Qh4 Bg4 Qg3 Bc8 Q3g4 Ba6 Qe1 Nbc3+ Kd6 Qa1 Kc7 Rb7+ Kc8 Nb5 Qa5 Qb1 Qeb4 Qh7 Qgc3 Rd2 Qh8 Qg1 Qhg7 Rh8 Qd6 Qg8 Qdc7 Rd1 Qd6 Nd8 Qdf6 Rbd7+ Kb8 Nc6+ Ka8 Rb7 Qe7+
1RKr1B1Q/1N3Pn1/PN1B4/3bqb1Q/4n1RR/4B1p1/R2p1pP1/r1kr4 w - - 0 1 illegal: No proof kernel
2R3R1/1rpPk2p/1r1R2B1/1brnNB2/qB2Q1pP/3R2bP/3N4/1n2K2Q w - - 0 1 legal: proof: a4 b5 axb5 e5 f4 exf4 b4 d5 c4 a5 cxd5 Qe7 bxa5 Qe6 h4 Qh3 gxh3 Bc5 Na3 Be7 Nb1 Bf8 d4 f5 e4 g5 e5 g4 d6 f3 a6 f4 a7 Bg7 d5 Bf6 d7+ Kd8 e6 Bd4 b6 Be5 b7 Na6 b8R Nc5 Ra3 Ne7 Rd3 Na4 Nd2 Nc3 Ba3 Nb1 Bb4 Rf8 Qe2 Rf6 Qe4 Rf5 Be2 Rg5 Bd1 Rh5 Bc2 f2+ Kf1 Rf5 Ngf3 Rg5 Ke2 f1R Rg1 Rc1 Rd1 Rg6 Ke1 Bd6 Ne5 f3 Rb5 Rb8 a8Q Rb7 Rb6 Ra7 Rb8 Rb7 Qa1 Ng8 Ra8 Ke7 d8R Bd7 Rac8 Nf6 Rg8 Bb5 Qa8 Na3 Bb1 Rc5 Bc2 Nb1 Qa1 Nh5 Qa8 Nf4 Qa1 Kf6 e7 Rh6 e8B Ke7 Qad4 Rf6 Bg6 Re6 Qg1 f2+ Kf1 Rf6 Qgh1 Re6 Nf7 Be5 Bf5 Reb6 d6+ Kf6 d7 Nd5 Bg6 Bg3 Ne5 Ke7 Bb3 Nf4 Be6 Nd5 Bef5 Nf6 Ke2 f1Q+ Ke3 Qg1+ Ke2 Qd4 Kf1 Bh2 Ke1 Nd5 Rc1 Qa1 Rc4 Qa4 Rcd4 Ne3 Rd6 Nd5 Re3 Bf4 Rd3 Bg3+
QR2NB2/p3Nr2/3pK2n/N4n1P/8/R1BbR1PP/1p2qr2/bk1rN2Q w - - 0 1 legal: proof: d4 g5 a4 e5 dxe5 h5 Qd5 b5 axb5 g4 Qd1 g3 fxg3 h4 b4 h3 gxh3 c6 b6 Ke7 b7 Bg7 b5 Bh6 b6 Bg7 Bg2 Bf8 Be4 Ke8 Bd3 Bd6 Bc4 Bf8 Bb5 cxb5 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 f6 e4+ Kg6 c4 f5 c5 b4 c6 b3 c7 f4 e6 f3 e5 Kf5 e7 f2 e8N f1R e6 Qh4 e7 Na6 b8B Rf4 b7 Rf2 Ra3 Qh5 Bb2 Nc5 Bc3 Ne4 Nd2 Bg7 Nc4 Qe2 Nf3 Nh6 Ne1 Nd6 Na5 Rf8 h4 Rf6 h5 Rf7 h3 Bd4 Bb4 Bb2 Bc3 Ba1 Rg1 b2 Qb1+ Kg5 Qe4 Ndf5 Qh1 Rg2 Rf1 Rh2 Rf3 Rf2 Re3 d6 Bg7 Bd7 c8N Bb5 Ke6 Bd3 Bf8 Rf1 Bc7 Rg1 Ng2 Rd1 Ne1 Rb8 Bb6 Ra8 Bd4 Rb8 Nb6 Rc8 b8R Rc2 Be5 Qf3 Ra2 Bb5 Raa3 Nh4 Nf6 Rf2 e8Q Qe2 Qec6 Ba6 Bd4 Bb5 Kd5 Kf5 Ne8 Ba6 Qa8 Bc4+ Kc6 Ba6 Bc3 Bc4 Rf3+ Ke4 Nd5 N4f5 Ne7 Ba6 Bb4 Kd4 Kd7 Bd3 Re3 Qd2 Ke6 Qe2 Nb3+ Kc4 Bc5 Kc3 Na5+ Kd2 Bd4 Kc1 Bc3 Kb1
N3QQ2/Q1rBN1nB/K3P3/2pq2pn/4P3/r2Pk1p1/1q3R1R/b3Nb1Q w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 gxf5 d5 b4 h6 bxa5 d4 Ba3 d3 Be7 Kd7 Bg5 hxg5 cxd3 Ke8 d4 Qd6 d5 Qd8 h4 Kf7 a4 b5 h5 c5 e6+ Kf6 d6 Ke5 f6 Kf4 h6 g4 a6 g5 a5 g3 d7 b4 a7 b3 f7 b2 h7 Ba6 Rh2 Bd6 f8Q+ Nf6 Qa4+ Bc4 a6 Qe7 d8Q Nc6 Qde8 Ne5 Ra2 Nf7 Nf3 Ne5 Nc3 Qf7 Nd5+ Ke4 Ne7 Rg8 h8Q Rb8 a8B+ Rb7 a7 Kf4 e4 Bb8 Bh3 Ng6 Bf5 Rc7 Bc6 Nh5 a8N Ng7 Bd7 Bf1 d3 Ke3 Qa7 Nf4 Bh7 Qf5 Kd1 Qe5 Kc2 Nfh5 Kb3 b1Q+ Ka4 Qd5 Ka5 Qbb3 Ne1 Qb2 Qf5 Rf8 Ka6 Rf7 Qh3 Rf2 Qf5 Rc2 Qh3 Rc3 Qhf8 Ra3+ Ba4 Qb1 Raf2 Qb2 Qg2 Rd7 Qh1 Be5 Qb6 Rc7 Qa5 Qc1 Bd7 Ba1 Qa4 Qb2 Qa5 Rb3 Qb6 Rc3 Qa7 Ra3+
bb3k2/r2P2nR/2NpK2q/1Q2N1p1/p1Q1Bq2/1n2B1RP/PQ1B1Q2/5r2 w - - 0 1 illegal: No possible last move
r2b2k1/1pn2Np1/1N1Bq1QR/Qp2b3/8/RPRP1R2/1QB1q1Pr/3K2n1 w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 a6 cxd5 Bd7 Qe2 Bc8 Nh3 c5 Qb5+ axb5 Ng5 Bd7 Nxh7 Bc6 dxc6 Qd4 Na3 Qd6 Nb1 Qd8 a4 Kf7 f4 e5 h4 e4 b3 c4 f6 e3 h5 c3 f5 c2 c7 e2 c8R Qe7 h6 Nd7 a5 Qe3 a6 Qf4 a7 Qa4 Rc3 Qb4 Ra3 Qc5 Ng5+ Ke8 f7+ Ke7 f6+ Kd8 h7 Qc8 Rh6 Bc5 f8Q+ Kc7 f7 Qe8 d3 Kd8 Nd2 Ngf6 Nc4 Ne5 Bf4 c1B Nb6 Bb4 Qc5 Nd5 f8R Nc7 Qd4+ Ke7 Nf7 Bb2 Kd2 Rg8 h8Q Ba5 Qh7 Rh8 Qg6 e1Q+ Kc2 Qe4 Be2 Nf3 Bd1 Ng1 Kd2 Q4c6 Bc2 Qe6 Kd1 Ba1 Rc6 Rh7 Qb2 Rh8 Rc3 Rh7 Rh3 Rh4 Rf3 Rh2 Rh8 Qe2+ Kc1 Qd7 Rh6 Kf8 Bg3 Kg8 Bd6 Rb8 a8Q Qde6 Qa6 Ra8 Rc4 Bc3 Qa5 Bf6 Rc3 Bd8 Rc6 Q2e3+ Kd1 Qf2 Qbf6 Bd4 Rc3 Qfe3 Qe5 Qf2 Qe2 Be5 Qd2 Qe3 Qc1 Qe4 Qb2 Qe2+
N2NK2Q/4R1B1/Qr5P/qn2BpNq/Br2nB2/4prp1/2P1P3/2k2bR1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 axb5 e4 d4 Bd6 f4 Be5 fxe5 cxd4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 d5+ e6 g5 b6 g4 h6 d3 a6 d4 h7 g3 a7 f6 Kg6 f5 Kf7 d2 e7 d3 e8Q Ba6 b7 Nc6 b8B Nd4 h5 Nf6 h6 Qa5 Nc3 Qb6 Bg2 Bb7 Na2 Qa5 Nh3 Nb5 Nb4 Kc3 Nc6 e3 Bf4 Rg8 h8B Rb8 a8N Rg6 Nd8 Bc6 Qg1 d1R Bg7 d2 Ng5 Rf1 Qh8 d1Q Bb2+ Kd2 Bbe5 Rf3 Ra4 Bb7 Re4 Kc1 Qe1 Bc6 Rg1 Rb6 Qb4 Qe1 Qd6 Qf1 Ra4 Ne4 Bh1 Bd5+ Ke8 Rb8 Qa6 Rgb6 Rc4 Qd1 Rg2 Qg1 Rc7 Qh2 Rd7 Rc8 Re7 Rc4 Rb7 Rb4 Rg1+ Rf1 Bf3 Qh1 Bh5 Qh3 Bf7 Qh5 Re7 Bc6+ Kf8 Bb7 Bb3 Bc6 Ba4 Bd5 Rg2 Rf3 Rg1+ Kd2 Bc7 Rf2 Bfd6 Nf6 Nh3 Bg2 Bf4 Bf1 Ng5 Rf3 Bcd6 Ne4 Bde5 Qh2 Kf7 Kc1 Ke8 Qh5+
2b4N/3Qn1qr/Q1BKBQ1p/N4P2/bk3B1P/4RqP1/b2ppR1n/7Q w - - 0 1 legal: proof: b4 g5 d4 c5 bxc5 b5 a4 b4 f4 gxf4 c4 b3 c6 b2 c7 Bh6 c5 Bf8 a5 Nh6 Nc3 b1R c6 Rb7 Nb1 Rb6 axb6 Ng8 b7 f5 e3 f3 Kd2 f2 Bb2 f4 Ba6 f3 Ba3 Bh6 Bc1 Bf4 Bc4 a5 Bf1 Ra6 exf4 Rb6 Ke3 Rb5 Kd2 Rc5 dxc5 Kf8 Ke3 Kf7 Kd2 Ke8 Ke3 e5 Ke4 Ke7 Kd5 h6 h4 e4 g3 e3 f5 d6 Na3 a4 Nh3 Rh7 Ng5 Nd7 b8Q Ne5 Rh2 Ng4 Bb5 f1B Rf2 Nh2 Nc4 a3 Nf7 a2 Nh8 Qd7 Rb1 a1Q Rb3 Qa8 Na5 Bd3 Bd2 Bb1 Qh1 Ba2 Qb6 e2 Bf4 Qb7 Ke4 d5+ Ke5 d4 Re3 d3 Ba4 d2 Qb2 Qa8 Qc3 Ba6 c8B Qda7 Bd7 Bc8 c7 Q8b7 c6 Qb3 Rg2 f2 Be6 f1B Rf2 Bg2 Qca1 Be4 Qd4 Bc2 Qb6 Bd7 c8Q Qb7 Qa8 Bc8 c7 Qa3 Bb5 Ba4 Qaa6 Qf3 Bc6 Qc1 Kd4 Qa1+ Kc5 Qg7 Qd3 Ba6 c8Q Bb7 Qa8 Bc8 Qd4 Kf8 Kd6 Ne7 Be4 Ke8 Qba6 Kd8 Qf6 Ke8 Bc6+ Kd8 Ke5 Kc7 Qd3 Kb6 Qaa6+ Kc5 Qd7 Kb4 Kd6 Qg5 Qe5 Qgg4 Qf6 Qg7
3k3N/1n6/n1KBRqP1/2RB4/QP1Rpp1p/3R3P/3brbQb/q1B2N2 w - - 0 1 legal: proof: e4 c5 f4 b5 a3 d5 b3 b4 axb4 c4 bxc4 dxe4 g4 a5 f5 Ra6 Nh3 g5 Ng1 Rg6 fxg6 f5 Ne2 f4 Ng1 Bf5 gxf5 Qc8 Nf3 Qc7 Ng1 Qd8 Kf2 e5 d4 h5 c5 h4 c4 a4 c6 a3 h3 g4 d5 a2 c7 Na6 c8R Nf6 d6 Nc7 d7+ Ke7 c5 Nfd5 f6+ Ke6 f7 Ke7 c6 Nb6 Nd2 Rg8 Qa4 Ncd5 c7 Bg7 f8B+ Kf6 Bd6 Re8 Ngf3 Nc4 Bg2 Na5 Re1 Nb7 Nf1 g3+ Ke2 e3 Kd3 e2 Ke4 Qe7 d8R Qf8 Rb1 a1Q Rb3 Qf7 Bh1 g2 Rd3 g1B Ng5 Bh2 Bf3 Qe7 Nf7 Ke6 Nh8 Qf6 Red1 Re7 Re8 e1B Rd4 Bf2 R1d3 Nb6 Bh1 Nd7 Bf3 Nb8 Bh1 Nc6 Bg2 Kd7 Kd5 Na5 Kc5 Nb7+ Kb5 Nb8 Bd5 Rf7 Re6 Na6 Rce8 e4 Re5 Rf8 R8e6 Rd8 Rg5 Be1 Rh5 Bd2 Rf5 Bf8 Rh5 Be7 c8Q+ Ke8 Qcc2 Rc8 Rf5 Kd8 Qca2 Rc2 Rg5 Rb2 Kc6 Bf8 Bb8 Bc5 Bd6 Be1 Rf5 Rg2 Qf2 Bd2 Qg3 Rf2 Qg2 Re2 Bb3 Ba7 Rc5 Bb6 Bd5 Qe7 Rb5 Re1 Rc4 Bf2 Rcd4 Qf6 Rc5 Re2
4rRK1/1rq1kN2/4B1P1/1N2ppP1/3nB2P/R1qbrQ1N/pN2n1Q1/5Q2 w - - 0 1 legal: proof: d4 c5 a4 g5 f4 h5 g4 b5 axb5 d5 Be3 h4 dxc5 d4 Bf2 d3 fxg5 Bh6 e3 Bg7 Bg3 Bd4 exd4 hxg3 Kd2 f5 Ke3 a5 Kf4 a4 Ke5 g2 c4 e6 b4 d2 d5 a3 c6 Nf6 d6 Nh5 g6 Qd7 b6 Ra7 g5 Qb7 b5 Kd8 c5 Rg8 c7+ Ke8 c6 Ra5 d7+ Kf8 d8N Qa6 b7 Qb6 Qf3 d1R Nd2 Qa7 Nf7 Nf4 Kf6 e5 b6 Ra6 Nc4 Qa8 Bd3 Ne2 Nb2 Ra7 Be4 Rf1 Nh3 Bd7 c8B g1Q c7 Bb5 Be6 Nf4 c8N Na6 b8Q Qe3 Qb7 Re1 Ncd6 Bd3 Nb5 Nb4 Qc6 Qc8 b7 Re2 b8Q Rb7 Qf1 Qc5 Qa8 Qc3 Qd5 Rh8 Qb3 Ke8 Kg7 Nc6 Qc2 Re3 Qcg2 Ne2 Ra2 Rh7+ Kg8 Rb8 Qb7 Ncd4 Qd5 Ra8 Qb3 Q8c7 Qbd1 Ng3 Qdf3 Ke7+ Nd8 Qe1 Nf4 Qb7 h4 Qd7 Q1e2 Qc3 Nh3 Ke8 Rha1 Qdc6 Qgf1 Rb7 Qeg2 Nge2 Nf7 Ke7+ Kh7 Qa5 Rc1 Qd6 Rc8 Qc3 Kg8 Qdc7 Rf8 Re8 Ra1 Q3c5 Rc1 a2 Rc3 Q5c6 Ra3 Qc3
1Bqbk3/2R2R1P/1PNnr3/4P1R1/1q1p4/q1n1NpQ1/2p1B2R/1Br2QK1 w - - 0 1 legal: proof: b4 h5 f4 e5 a4 exf4 c4 b5 axb5 h4 b6 h3 b7 Rh7 gxh3 Rh6 h4 Rh7 h5 Rh8 b5 c5 d3 d6 b6 Qd7 Qd2 Qb5 Qd1 Be6 cxb5 c4 Na3 c3 Nb1 Bc4 dxc4 Kd8 Ra3 Ke7 Ra1 Ke8 Kf2 a5 h4 f5 e4 g5 c5 d5 h6 d4 h7 g4 c6 a4 c7 a3 c8B f3 h5 a2 h6 f4 Nd2 Bg7 Rh5 Na6 b8Q Nc5 b7 Ra4 b6 Ne7 Nc4 Nd5 Be2 Bf6 Ne3 Rc4 Bf5+ Bd8 Rg5 g3+ Kf1 f2 Nf3 Rf8 Ne5 Rf6 Nc6 Re6 Rb1 a1Q h8R+ Kf7 h7 Qa3 Rb2 Qb4 Kg2 f3+ Kh1 Qa3 Qf1 g2+ Kh2 Qb4 Qg3 Qa3 b8R Nb7 e5 Nd6 Rc8 Qb4 Bb1 g1Q+ Kh3 Rc5 Rc2 Rc4 Ba3 Rc5 Rhg8 Rc4 R8g7+ Ke8 Rf7 Rc5 Qf4 Qg4+ Kh2 Qf5 Rcc7 Qg4 Qd1 f1Q Qg3 Qe1 Qd3 Qc1 Qd1 Qf5 Qf1 Qd3 Kg1 Qa6 Bd1 Qc8 Rh2 Qcb2 Be2 Q2b3 Bc1 Q3a3 Bd2 c2 Be1 Rc3 Bd2 Rd3 Bc3 Rd1 Be1 Qc4 Bb4 Rc1 Bc5 Nc3 Bb4 Nf5 Bd6 Qcc5 Rb7 Qab4 Bb8 Nd6 Ra7 Qa3 Rac7 Qcb4
2n4b/k1bP4/qRP3QK/4BQ2/ppQ3p1/Q2rNB1n/3b1q1P/B2N1R2 w - - 0 1 legal: proof: e4 f5 exf5 d5 g4 h5 gxh5 b5 a4 a6 c3 b4 c4 dxc4 b3 c5 Qg4 a5 Qg3 c3 Ne2 c2 Qf3 c4 Qg4 c3 Ng1 Be6 Qd1 Bc4 bxc4 Ra6 Na3 Rb6 Nb1 Rb5 axb5 Qd6 Na3 Qd5 Nb1 Qd8 Ke2 Kd7 Ke3 Kc8 Kf4 Kb7 Kg5 e5+ f6 e4 d4 e3 f4 e2 b6 e1B c5 g6 h6 Qe8 h7 Qe5+ f5 Bf2 f7 Bg3 d5 Ka8 b7+ Ka7 c6 Bg7 f8Q Bf2 d6 Nh6 d7 Qe1 f6 Qe4 f7 Qd3 Qh5 Qd1 Be2 Ng8 Bf4 c1Q Bf3 c2 Na3 Qd3 Nh3 Qa6 Nc4 Qe3 Rhf1 Bg3 Nf2 c1B Nd1 Ne7 Qg8 Nc8 f8Q Qf2 Nce3 Bd2 Qc4 Bb2 Kh6 g5 Qh3 g4 Qf5 Re8 Qhh5 Bh8 Qhg6 Re5 Ra2 Rd5 Be5 Rd3 Ba1 Bc7 Ra3 Bf6 h8Q Bd4 Qhe5 Bb2 Qg3 Bh8 Rc3 a4 Rc1 Qb6 Rc2 Na6 b8B+ Ka8 Rc3 Nc5 Rc1 Qa6 Qh3 Ba5 Bbe5 Ne6 Rc2 Nf4 Rc3 Rd4 Rd3 Rd6 Rd5 Ka7 Rb5 Bc7 Rb6 Rd5 Qhh5 Nh3 Qfd3 Rb5 Qhf5 Rd5 Qa3 Rd3
r4N2/R1P1Qr1p/2P1P1R1/pQ4b1/6n1/2RN2B1/k2nBp2/qR2KQqr w - - 0 1 legal: proof: d4 b5 g4 f5 a4 c5 dxc5 g5 axb5 e5 f3 Bb7 f4 exf4 h3 Bf3 gxf5 g4 Qd5 g3 Qd1 Bg4 hxg4 Qe7 Rh2 Qf6 Rh1 Qd8 e4 Kf7 b4 d5 c4 a6 c6 f3 b6 d4 b5 d3 e5 g2 g5 Bb4+ Nc3 Bf8 c5 Be7 e6+ Ke8 g6 Qd5 f6 Qg5 c7 Qe5+ Nge2 g1R c6 Ba3 b7 Bc5 f7+ Ke7 b6 Kd6 f8Q+ Ne7 g7 Nd7 g8R Be3 b8Q Kc5 b7 Kb4 Rg6 Nb6 Ne4 Bg5 Nc5 Nc4 Bf4 Ng8 Bg3 Nd2 Qe7 Nf6 Nd7+ Kc4 Qb1 Ng4 Nf8 a5 Ra3 Qa1 Nf4 Rg8 Qd1 Rg7 Rc3+ Kb5 Qc1 Ka4 Qb1 Rf7 Qc1 Rg2 Be2 Rf2 Qbd8 Rh2 b8R Rh3 Rb7 Rh6 Ra7 Rh3 Rc2 Kb3 Rc3+ Ka2 Qb8 Rh2 Rg1 Rh1 Qb5 Nc4 Kf1 d2 Qe1 d1Q Nd3 Nh2+ Kf2 Nd2 Qf1 Qdb1 Rc1 Ng4+ Ke1 Qb4 Rb1 Qbd4 Rg2 Qg1 Rh2 Bf4 Rh5 Be3 Rc5 Bg5 Rc3 f2+
4B3/rP1rN1Bq/1Q2p1nb/p1Pq4/4P1p1/N2n2k1/2KRR1rR/1RQ3B1 w - - 0 1 legal: proof: b4 a5 h4 b5 g4 c5 a4 g5 axb5 f5 gxf5 Nc6 d4 cxd4 h5 Nb8 b6 Bb7 b5 Ba6 bxa6 Qc8 Bh3 Qc6 Bf1 Qg6 hxg6 Bh6 Ra2 Bg7 Ra1 Bf8 Kd2 d5 e4 Kd7 c4 Kd6 f4 h5 c5+ Kd7 g7 h4 b7 h3 f6 Ke6 f5+ Ke5 f7 Kf4 f6 d3 a7 g4 Na3 h2 Ne2+ Kf3 Nd4+ Kf4 Nf5 e6 Rb1 d4 Ne7 Rh6 Qb3 Nd7 Qb6 Kg3 Bb2 Re8 a8R Ne5 Rd8 Rh5 Kd1 d2 Kc2 d1R Bb5 Nd3 Rd5 Ra8 Be8 Rf5 Re1 h1Q Re2 Qh5 Bc1 Rf3 Be3 Ra7 Bg1 Qh7 Rh5 Rf5 Rhh2 Rf2 Rd2 Rg2 Re2 Nh6 g8Q Nf5 Qg5 Nh4 Qc1 Bh6 f8B Ng6 f7 Nb2 Kb3 d3 Bg7 d2 f8R Nd3 Kc3 Rf1 Rf6 d1Q Rff2 Qd2+ Kb3 Qg5 Kc3 Qd5 Kc2 Rd1 Rd2 Rf1 Rfe2 Rf7 Nc8 Rc7 Ne7 Rd7
4Q1r1/1P3BpN/rBb5/2Q1N1B1/KP1N3q/1B1pqp2/P1n1RbR1/3k2q1 w - - 0 1 illegal: No possible last move
2Q4R/Kp1Pp1p1/1n1NP1nb/4rPQR/1bB2R2/B3n2b/2R3r1/B3N1k1 w - - 0 1 illegal: No proof kernel forced: wxDB
1b4r1/2R1P1Bk/n5rP/pN6/b1PQp3/1pbQb3/1QB2N1Q/1K2nRN1 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 g4 dxe4 gxh5 b4 f4 e5 Be2 a5 Bg4 e3 Bf5 e4 Bh3 Qc7 Bf1 Qe5 fxe5 Ra6 Ra2 Rb6 Ra1 Rb5 axb5 Ke7 Bd3 Kd7 Bf1 Ke8 h4 g5 c4 f5 d4 Kf7 b6 Kg7 c6 b3 h6+ Kh7 e6 f4 h5 f3 b7 g4 d5 e2 Kd2 g3 c7 f2 d6 g2 d7 Na6 b8Q Nc5 d8Q Bd7 c8N Na6 Qh2 Nc5 Bb2 e1B+ Kc1 Bc3 Qd4 Na6 Na7 Ne7 Nb5 Bg7 Bd3 Ng6 Bc2 Bb4 N1c3 f1R+ Nd1 Bbf8 Kb1 Rf6 Nf2 Rg8 Qd3 Be8 Q8d4 Bd6 e7 Bc6 Ra4 Nh4 Rb4 Bb8 Bc3 Kh8 h7 Rg6 Ba1 Bf6 Bb2 Nf3 Bc3 Kg7 h8Q+ Kf7 h6 Ne1 Ba1 Be8 Qb2 Bc3 Qhd4 Bd7 Na3 Ba4 Rb7 Bb5 Rc7 Ba4 Qa7 Kf6 Qad4+ Kg5 Nb5 Kf5 Ne2 Kg5 Rf1 g1B Nd1 Be3 Ng1 Rb6 Nf2 Kg6 Nd1 Rd6 Nf2 Kh7 Qb6 Nf3 Qa3 Bb4 Bg7 Bc3 Qb2 Ne1 Qbd4 Rg6
2R2bb1/q1nNp1PR/k2N4/p1bpKq1B/B2P1QQq/1r2R3/6RP/N7 w - - 0 1 legal: proof: c4 b5 cxb5 g5 a4 a5 f4 Nf6 b4 Ne4 b6 Ba6 b5 Bc8 b7 Ra6 Nc3 Nf6 Nb1 Rc6 b6 Ng8 Bb2 Rc5 Bc1 Rb5 axb5 Bh6 Kf2 Bg7 Ke1 Bf8 fxg5 h6 e3 Na6 e4 d5 e5 Nc5 Bc4 Ne4 Bf1 Nd6 exd6 Bf5 Ra4 Be6 Ra1 Bc8 g4 Kd7 g6 Rh7 g7 Rh8 g5 Rh7 g6 Rh8 Bb2 Ke8 Bf6 Bd7 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 Ke3 c5 b8R f5 d4 c4 b7 g4 Kf4 c3 b6 Kc6 d7 g3 Ra2 g2 Nf3 g1Q Ne1 c2 Ke5 c1B Nd2 f4 Ne4 f3 Nc2 f2 Na1 Rh7 Qg4 Rh6 Nd6 Qc7 d8R Bd7 Rdc8 Nf6 g8B Qg2 Bf7 Ba3 g7 Rh8 Bh5 Ne8 Ra8 Qf3 b8Q Qh3 b7 Kb6 Bb5 f1Q Ba4 Bc5 Rg2 Qh4 Rhg1 Qb1 Re1 Be6 Re3 Bg8 Ra7 Qd7 Ra8 Ba3 Rcc3 Bc5 Rh3 Qf1 Rcf3 Qa6 Re3 Qa7 Qc7+ Ka6 Rc8 Bb6 Qc1 Bc5 Qd2 Nc7 b8N+ Kb6 Qf2 Rh6 Qff5 Rg6 Qgf4 Rg3 Q5e4 Qdg4 Nd7+ Ka6 Qg6 Qf3 Qgg4 Qf2 Re1 Rb3 Ree3 Qf3 Bg6 Qhg3 Rh7 Qh4 Bh5 Qff2 Rf3 Qc2 Re3 Qf5+
8/k1p3nb/3r2B1/pPR1N2Q/r2NKr1P/QPp4N/5R1B/1Nr1B1qr w - - 0 1 legal: proof: e4 d5 c4 dxc4 a4 h5 g3 f5 exf5 b5 axb5 h4 Ra6 h3 Ra3 Rh4 Ra1 Rh8 Bd3 g5 Qe2 g4 Qf3 Bh6 Bf1 Bg5 Qe2 Nd7 Qd1 Ndf6 Ra5 Nh5 Ra1 Bh4 gxh4 g3 Ke2 g2 Ke1 Ng3 hxg3 Ba6 Nc3 Bb7 Nb1 Bc8 Ke2 Kd7 Ke3 a5 f4 e5 d4 e4 d5 h2 g4 Kd6 f6 Kc5 f5 Kb6 b3 Qd7 f7 Ra7 f8B Qd8 d6 Rh6 g5 Be6 d7 Ra6 g6 Kb7 f6 Ka7 f7 Qe7 d8N Qa3 g7 Rh5 Bd2 Rh7 Bd6 Qb2 f8Q Nf6 g8N Qc1 Nf7 Bf5 Qh5 Ne8 Bd3 Ng7 Nh3 g1R Ne5 Rg4 Rf1 h1R Rf2 Qg1 Ne7 c3 Be1 Rh6 Ra4 Bh7 Rc4 Rf6 Rc5 Rff4 Nf5 Rb6 Kd4 e3+ Kd5 Ra4 Nd4 e2 Bg6 Rf4 Qe7 Rf5 Ke4 Rc6 Nd7 Rf3 Bh2 Rd6 Ne5 Rf8 Qeg5 Rf5 Qc1 Rff6 Qa3 Rf7 Bd2 e1R+ Re2 Rd1 Be1 Rc1 Rf2 Rf4+
q1B2NrB/1KNP4/1R1Q1Q1p/2Q1p1q1/1p1rBb2/1q1R2r1/bP1QP3/5k2 w - - 0 1 legal: proof: f4 b5 d4 d5 c4 c5 h4 g5 fxg5 b4 h5 Qd7 a4 Qc7 g6 cxd4 g4 Nc6 h6 Qd8 g5 Nf6 Qd3 Nh5 Qd1 Ng7 hxg7 Ne5 cxd5 Nc4 Rh6 Nd6 Rh1 Nb5 axb5 Bd7 Rh2 Bg4 Rh1 Bc8 Kd2 Kd7 Kd3 Kd6 Ke4 Kc5 g8B Kc4 d6 a5 g7 e5 b6 h6 g6 a4 b7 d3 b8Q d2 Bh7 f6 g8Q+ Be6 g7 a3 Qf7 a2 g8Q Qb6 Na3+ Kc5 Nf3 Qd8 Nd4 Be7 Bh3 Ra6 Qgf8 Rg8 Nab5 Ra3 Nc7 Rag3 Rg1 Bb3 Nde6+ Kc4 Qe1 d1R Bg5 Rd2 Rb1 a1Q Rd1 Ba2 B7f5 Rd5 Qd2 Qc1 Qa7 Qa8 Qc5+ Kb3 Qb8 Bd8 Nf8 Qc4+ Qdd4 Kc2 Rd3 Qc3 Bc8 Be7 d7 Bd8 Qcb6 Qb3 Bf5 Be7 Qe3 Bc5 Qf4 Be3 Q8a7 Bc1 Qd6 Bd2 Rg2 Kd1 Qac5 Ke1 Bh7 Bc1 Qd2+ Kf1 Bh4 R3g7 Rg6 f5+ Ke3 f4+ Ke4 f3 Bf6 f2 Qfe7 Rf7 Bh8 Rf3 Qef6 Rg3 Kf5 Kg2 Ke6 f1Q Ke7 Qf5 Kd8 Qc3 Nb5 Qf4 Kc7 Kf1 Kb6 Qb3 Nc7 Qaa3 Kb7 Rd4 Rg7 Qa5 Be4 Qaa3 Re7 Qaa4 Re6 Qf5 Qdc2 Bf4 Qd2 Qa5 Qdd5 Qaa4 Rb6 Qg5 Qdd6 Qa8+
7b/k1NPB1Pq/3q3Q/2R1q1pp/rQB2b1p/B3R1PK/rRN2r1B/8 w - - 0 1 illegal: Other
Bnn1NBq1/1K3B1P/N1N1p3/7Q/Rbp2np1/2n2R1P/1Q4P1/2qNkr2 w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 h5 b4 a6 d6 Nc6 f3 Bg4 fxg4 Kd7 gxh5 Ke6 d4 a5 d7 Nb8 d5+ Kf6 d6 axb4 Be3 Ra3 Bd2 Rd3 Bc1 Rd5 exd5 Qc8 Kf2 Qe8 Ke1 Qd8 Kd2 Ke5 Kd3 f5 a4 c5 h6 g5 a5 b3 h7 b2 h3 f4 a6 b4 Kc4 Ke4 Kb5 b3 a7 f3 a8B f2 Nd2+ Ke3 Nc4+ Ke4 Ne2 b1Q Ra4 b2 Nc3+ Kf5 Qh5 Qd3 Nd1 b1N Ba3 Qc8 Kb6 Ke4 d8Q g4 d7 Qc3 d6+ Kd4 Be2 Qa1 Rf1 Nc3 Ka7 Qb1 Qb6 Qc1 d8N e6 d7 Bd6 Qb2 Ne7 Nb7 Rf8 d8N Rf6 Bf3 Kd3 Nc6 Qg8 Bd5 Nd7 Bf3 Nc8+ Ka6 Be7 Ncd6 c4 Ne8 Bb4 Bd5 Qd2 Be4+ Ke2 Nc5 Nb8+ Kb7 Rf4 Qa1 Qc1 Bg6 Kd2 Na6 Ke2 Rh1 f1N Bf7 Ne3 Rf1 Ned5 Rf3 Ke1 Qb2 Rf6 Rg3 Rf1 Rf3 Ba5 Be7 Nf4 Bf8 Bb4
3nNQn1/P1B1pB1N/1q1BP1R1/1QrR2p1/2bKp3/P1q2q1k/5R2/2R1q3 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 g4 a3 e5 Na6 Qc2 Kf7 Qe4 fxe4 bxa3 Ke8 a4 Nb8 a5 Bd7 Bd3 Bf5 Bf1 Bc8 h4 b5 h5 g6 h6 Kd7 g5 Ra6 f5 Bg7 hxg7 Rf6 gxf6 Ke8 Ke2 Kd7 Ke3 c5 d4 h5 f7 b4 f8Q b3 d6 b2 a3 h4 d5 h3 a6 h2 f6 c4 f7 c3 a7 c2 Kd4 Nf6 g8Q Ba6 Nd2 b1Q Nh3 Nh7 Nc4 Bb5 Rg1 h1Q Bf4 c1Q Ng5 Nf6 Nh7 Kc8 d7+ Kc7 Nd6 Bc6 Bc4 Bb5 Ba2 Qc8 d8B+ Kd7 Ne8 Qe1 d6 Qf3 Bc7 Bc4 Qgg7 Ke6 d7 Kf5 d8R Qbb4 Rd5 Ng8 Rc1 Qd6 Bg3 Kg4 Qf6 Qda6 Qc6 Kh3 Qb5 Qaa5 Rg2 g5 Rf2 Qg2 Rf6 Qf3 Rg6 Qd8 Qg7 Qc8 f8R Qaa6 Rff6 Qab7 Qf8 Nc6+ Kc5 Nd8 Kd4 Qfh1 Rf2 Qf3 Bf4 Qb6+ Rc5 Bd3 Bf7 Bc4 Bd6 Qcc6 e6 Qcc7 Ke5 Qc8 Rd5 Qcc5 Bc7 Qce3 Bh2 Q3c3+ Rd4 Nh6 Bb8 Rg8 Nef6 Qb4 Qg7 Re8 Qf8 Ng8 Rd5 Nb7 Bg3 Rc8 Ne8 Rc6 Bc7 Rc5 Kd4 Nd8 Bgd6 Qbc3+
1q1R4/1R1b1QQN/KB1RR2P/1b3Pb1/bpB4n/2pNP2Q/5p2/kn4b1 w - - 0 1 illegal: No proof kernel
1q3R2/1p4P1/1RQ1pr1k/2r1Q2r/Pb2br1N/2BNN1R1/2KpPN2/1b4B1 w - - 0 1 legal: proof: f4 f5 d4 h5 b4 a5 bxa5 g5 g3 c5 dxc5 h4 Na3 h3 Nb1 g4 Bg2 Nh6 Bc6 Nf7 Be4 Ng5 Bg2 hxg2 fxg5 f4 Qd6 f3 Nh3 Nc6 Ng1 Nb4 Qd2 Nd5 Qd1 Nf4 gxf4 Ra6 Qd3 Ra7 Qd1 Ra8 Kd2 Kf7 a4 Kg6 h4 d5 c4 e6 h5+ Kh7 c6 g3 c5 f2 g6+ Kh6 f5 f1B a6 d4 a7 d3 f6 Qd6 f7 Bg7 f8N Qd4 c7 Qc4 c6 Bf6 Nh3 g1R Ra3 g2 Nf4 Rg8 Nc3 Bd7 c8Q Be5 c7 Bb5 Ne4 Qd5 Nf2 Kg5 h6 Bb2 h7 Bc6 h8B Qd6 Bc3 Qe5 g7 Be4 N8g6 Rf8 Nh4 Kh6 Qb3 Rb8 a8R Rf6 Qd5 Qd6 Qd7 Rh8 c8N Qb8 Qe5 Bd5 Nb6 Ba2 Rb3 Ba3 Nbd5 Bb4 Qc6 Rc8 Rh2 Rh1 Ne3 g1R Rh3 Bg2 Rg3 Rf1 Ba3 Be4 Rb2 Ba5 Bc5 Rc7 Rb6 Bb4 Nhg6 Rh5 Nh4 Rc1 Bd4 Rcf7 Bc5 Rc2+ Kd1 d2 N4d3 Qa7 Rf8 Qb8 B3d4 Rc4 Bc3 Rf4 B5d4 R7f6 Kc2 Rc5 Nd5 Bf5 Nh1 Rf3 Bg1 Rf4 Nf2 Be4 Ne3 Bb1+
RK1r3N/p2kP1QB/2r1R3/2BN1Qb1/n6p/3p1PP1/n2n1Q1n/1N3rN1 w - - 0 1 illegal: No possible last move, all moves rejected
B1rQBr2/1bBp3q/P2P2p1/b1k1PR1q/2N5/K1Qq4/2pq3N/1R1R2R1 w - - 0 1 legal: proof: c4 a5 h4 e5 f4 f5 g4 b5 h5 g6 h6 Nf6 cxb5 Nh5 b4 Ng7 hxg7 Nc6 fxe5 axb4 Rh4 f4 Rh5 Nd4 Rh1 Nf5 gxf5 Qf6 Nf3 Qe7 Ng1 Qd8 g8Q Ke7 a4 c5 d4 h5 Kd2 c4 Kc2 b3+ Kb2 h4 e4 c3+ Ka3 b2 d5 c2 b6 f3 e6 Kd6 f6 h3 e7 h2 e8B f2 f7 Rh5 b7 Ra7 b8R Be7 f8R Rc7 a5 Rh4 a6 Bb7 Qf3 Ba8 Nd2 b1Q Rf5 Rc8 Qc3 Bb7 Ngf3 Rh8 Rg1 h1Q Nh2 Qb5 Bg2 f1Q Nc4+ Kc5 Bf4 Qd3 Rad1 Bh4 Bf3 Be1 Bc7 Qg5 e5 Qdd2 d6 Qh5 Qf8 Qh7 Qe7 Rf8 Be4 Qf3 Qd8 Qfh5 Bf3 Qc6 Bh1 Qe4 Bf3 Bd5 Rbb1 Qed3 Bg4 Bh1 Bf3 Bg2 Ba8 Bb7 Rgf1 Qdh6 Rg1 Bd2 Qb3 Ba5 Qc3 Qhd2
4BBQK/1ppR2r1/1RR1q1n1/n1P1P3/B2q1Q2/2qpnP1k/4N1Nq/6B1 w - - 0 1 legal: proof: d4 a5 g4 e5 b4 g5 e3 f5 Ba6 d6 Bf1 f4 exf4 axb4 h3 e4 Be3 Bg7 Bc1 Be5 dxe5 Bf5 gxf5 g4 Qf3 g3 Qg4 Ne7 Qe2 Rg8 Qd1 Rg4 hxg4 Ng8 Qf3 Qg5 Qd3 Qd8 Qd1 Nh6 Nh3 Qh4 Bd3 Kf8 Ba3 Nc6 Rh2 Re8 Ba6 Qd8 Ng1 Nb8 Bf1 Kf7 Rh3 Rh8 Rh1 Ke8 Bc1 Ng8 Ke2 Ke7 Ke3 h5 c4 b3 a4 d5 g5 g2 a5 b2 f3 h4 c5 h3 g6 h2 g7 Nc6 f6+ Ke6 f5+ Kf7 Kf4 d4 Kg5 e3 a6 e2 a7 e1N a8Q Rh6 Nc3 b1Q Be3 Qb4 Nd5 Qd7 Ne2 Qb5 Bg1 Nge7 Ndf4 Na7 Rb1 Qd6 Qa4 Qbd7 Rb6 Qd8 g8B+ Kf8 f7 Kg7 f8R d3 Rf6 Nc2 Bf7 Ne3 Be8 Qe6 Rg6+ Kh7 f6 Nac6 f7 Na5 f8B Qd4 Qc4 Qc3 Qe4 Qd5 Rgc6+ Ng6 Kf6 Rh3 Qc8 Rg3 Qa4 Nh4 Qe6 Rg7 Qg8+ Kh6 Ng3 Qcb3 Be2 Qc3 Bd1 Ng6 Nge2 Qdb3 Qac4 Qa2 Ba4 Qab3 Bf2 g1Q Ng2 Kh5 Qf4 Qga1 Bg1 Qd4 Rd6 Qac3 Rd7 Qbd5 Rc6 Qa2 Bf2 Qac4 Rb1 h1Q Rbb6 Qh2 Bg1 Qcd5 Re7 Qd7 Rf7 Qdh3 Rd7 Qg4 Ne1 Kh4 Ng2+ Kh3 Bb5 Re7 Ba4 Re6+ Kg7 Re7+ Qgf7 Qf5 Kh7 Qe6 Qg7 Nh4 Kh8 Rf7 Qh7 Rg7 Qg8 Ng6+
1RNN4/2kp2Bb/1qB1Q1bP/1np1r1p1/2p1n1Br/P6P/Q1NR4/2K4B w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 b4 h4 bxa5 h3 c5 Ra7 c6 Ra8 gxh3 Bc5 h4 Ba7 d4 Bb6 h5 bxc6 d5 c5 d6 c4 Qd5 c6 Qd1 Bc7 dxc7 Ra6 Bd2 Ra7 Bc1 Ra8 Kd2 g5 e4 f5 e6 f4 h6 f3 h3 c5 e5 f2 e7 Ra6 Qb3 Nc6 Bg2 f1B Bb2 Bb7 c8N Nb4 Bc6 Nd3 Nf3 Ra7 a6 Nf6 Nd4 Bg2 Rd1 Nf4 Kc1 N6d5 Rd2 Ne3 Na3 Ne6 Rb1 Ra8 a7 Rf8 Nac2 Qb6 a3 Rf4 Qa2 Nc7 Ne6 Ned5 Nd8 Be4 Ba1 Rb8 a8B Nf6 Rb3 Bd3 Bh1 Bbe4 Bc6 Bh7 Rb4 Ra8 Bd4 Qa5 Rb8 Bdg6 Ne6 Ra6 Bcg2 Rd6 Bc6 Ne4 Ba1 Kf7 Nd8+ Kg8 e6 Rd5 Bf6 Re5 Bg7 Qb6 e8Q+ Rf8 Qe7 Rf4 Qf6 Rh4 e7 Nb5 Qf5 Bh5 e8B Bf7 Bf6 Bh5 Bf7+ Kf8 Be6 B5g6 Bg7+ Ke8 Nf7 Qa6 Qf6 Qb6 Bg4 Re7 Nh8 Kd8 Nf7+ Kc7 Nd8 Re5 Qe7 Rf5 Qe6 Re5
R4R2/p1q4Q/P2N1NRQ/4n2P/1rp4P/Kp1B1kN1/r2qbpnB/3R4 w - - 0 1 legal: proof: g4 e5 b4 b5 f4 c5 fxe5 h5 gxh5 d5 c4 dxc4 bxc5 Bd6 Nf3 Bc7 Ng1 Bb6 cxb6 Qd4 Bg2 Qd5 Bf1 Qd8 e4 Kd7 d4 Kc6 Kd2 g5 Kc2 f5 Kb2 g4 h4 g3 a4 g2 d5+ Kc5 e6 b4 d6 f4 b7 b3 a5 f3 e5 f2 d7 Qb6 d8Q Qa6 e7 Kc6 e8R Rh7 e6 Rc7 e7 Rd7 Qd2 Nh6 Ka3 Qb5 a6 Rd4 Qc7+ Kd5 Ne2 Ke4 Nbc3+ Kf3 Nd5 g1Q Ng3 Qh2 Rf8+ Nf5 e8N Qd7 Nd6 Nc6 b8R Ne5 Nf6 Ne3 Rg1 Ng2 Qh6 Rd2 Bd3 Rc2 Bf4 Ra2+ Kb4 Qd8 Qch7 Bg4 Rad1 Qc7 Ne2 Qh3 Bh2 Qg3 Rbc8 Qf4 Ng3 Rb8+ Nb7 Rc2 Ka3 Qd2 Nd6 Rb7 Ra8 Rb4 Q6g6 Ke3 Qgg7 Be2 Qgh6+ Kf3 Nge4 Nf4 Rg6 Ng2 Ng3 Ra2#
3Qr1n1/R1r2k2/4b3/2qpPN1P/p1pr1R2/2QRBp2/B1QK1QPq/5N2 w - - 0 1 illegal: No proof kernel
qBQ1R3/3P3B/1NpR1PRK/B4Q2/2Pqn3/2r4p/1p1p2rn/1n1NB2k w - - 0 1 illegal: No proof kernel
2n4B/6N1/kpQ2n2/2P3Qb/n1PpP1pN/QR1Bp3/2KRq2n/RR2b3 w - - 0 1 legal: proof: d4 c5 e4 d5 b4 a5 g4 g5 f3 h5 gxh5 e5 Bf4 Rh6 Be3 Rd6 Bc1 axb4 dxc5 d4 Bg2 Rd5 exd5 e4 Bh3 e3 Bf1 Ra6 Ba3 Re6 Bc1 Re4 fxe4 Bg7 Nf3 Bh6 Ng1 Bf8 h4 Kd7 d6 Kc6 d7 f5 h6 b3 h5 f4 h7 g4 h8R b2 h6 f3 h7 Qe7 d8Q Qg7 Qd3 f2+ Kd1 Na6 Na3 b1N Nf3 Bd6 Nb5 Bg3 Qa3 Nb8 Nh4 Qe7 Nc7 Qe5 Qg5 Na6 Ne8 Qe7 Ng7 Nd2 Bd3 f1N c4 Be6 Kc2 Nb1 Bd2 Nh2 Be1 Nf6 Rb8 Qd6 h8R Bf7 Bf2 Nc3 Rhb1 Na4 Rhf8 Be5 Bg3 Bh5 Bf4 Qc7 Rb3 Bd6 Be5 Qa5 Rbb1 Qe1 Rf7 Nc7 Rff8 Ng8 Rf2 Ne7 Rd2 Qe2 Qc3 Nb2 a4 Ned5 a5 Na8 a6 Na4 a7 N8b6 a8Q Nc8 Ngf5 Kc7 Bh8 Bg3 Ng7 Be1 Qa6 Nf6 Qa3 Ng8 Ra8 Nf6 Ra7 Kb8 Qb5 Kc7 Qc6+ Kb8 Ra5 b6 Rab5 Ka7 R5b3 Ka6
1Q5N/1R2B1BR/P1b1npp1/2pr1R2/1P2N3/1knrqKPp/1p1Q1R1B/8 w - - 0 1 illegal: No possible last move, all moves rejected
4Q1N1/4p3/B1QPp1R1/kNbn1P1N/3p4/K1N1qpPn/3p1R1B/1rB1n3 w - - 0 1 illegal: Other
qQR5/3pqQ1R/2P5/1KB2R1n/p1ppkr1b/pBb5/1NNP1P1Q/6Q1 w - - 0 1 illegal: Other
Q2nNB2/Q1qb2N1/KBN3nP/P3n1R1/2r1r1q1/P1b2R2/1k1qB3/3b1N1r w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Kd4 h4 g5 f4 e5 d6 c5 d7 c4 d3 c3 a3 e4 f6 e3 h5 g3 f5 g2 f7 g4 f6 e2 Qc2 e1Q Rh3 g3 Nd2 Nc6 Nc4 Bb4 f8Q Nge7 f7 Ng6 Nd6 Qd2 Be2 Qc7 d8N Bd7 Ne8 b6 Qb1 c2 Nf3+ Kc3 d4 g1N d5 g2 Nh2+ Nf3 d6 g1Q Ne6 Qg4 Nf1 Rc8 h6 Nd8+ Ka6 b5 Rh5 Nfe5 Rg5 Rh7 Bb2+ Kb3 Qg8 c1R f8B Re7 N6g7+ Re6 Qe4 Bc3 Qe3 b4 Qa7 Kc2 Ra2 b3 Ba1+ b2 Qh8 Bc6 d7 Kb3 Qg8 b1B Qh8 Bc2 Rb2+ Ka4 Rb3 Bd1 Qg8 Rd6 Qh8 Rd4 Bb2 Re4 Ba1 Ndf7 d8N Bd7 Nc6 Nd8 Bb2 Bb4 Bd4 Bc3 Bb6 Rb1 Rb5 Ra1 Rd5 Kb3 Rd3 Kb2 Rf3 Qcd6 Ne7 Rcc4 Qg8 Qc6 Qd5 Qc7 Qda8 Bc2 Nc6 Rd1 Ng3 Rh1 Nf1 Bd1
2BKQ1b1/2B1P3/6q1/nR3NPk/1b1r1P2/1r1b2n1/R1qNnQr1/q2QN1Q1 w - - 0 1 illegal: No proof kernel
n5Rb/1N2PbnQ/2P4P/r2q1q1n/k1B1R2r/B3b3/Q1r3qB/2RBK1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e4 g5 h4 d5 c4 Kd7 b4 a5 h6 f5 h7 d3 c5 f4 h5 g4 b6 Kc6 e6 Kb5 e5 f3 b7 d4 c6 g3 e7 g2 e8B a4 e6 f2+ Kd2 a3 e7 a2 Ne2 g1Q Qc2 Ra5 Bf7 Qg2 Bd5 Bh6+ Kd1 d2 Ba3 Be6 Bf3 Na6 b8B Qd5 Rh4 Be3 Bh2 Nc7 Re4 Na8 Qb2 Nf6 Ng1+ Ka4 b5 Ne8 b6 Ng7 b7 Bf7 b8R Qf5 Bc4 f1N Rg8 Ng3 h6 N3h5 Rb8 Rd8 h8Q Rdd5 Qh7 Rdc5 Bce2 Rc2 Bc4 Bf2 Ke2 d1R+ Nd2 Rf1 Rb1 a1B Rc1 Rd1 Qa2 Be3+ Kd3 Rf1 Bd1 Rf4 Nb3 Rh4 Re8 Ra7 Na5 Bc3 Nb7 Ra5 Be6 Ba1 Rg8 Bc3 Kc4 d3 Bd5 d2 Kd3+ Bcd4 Bc4 Ba1 Bg4 Rb2 Bf3 d1Q+ Kc3 Qdd5 Bfe2 Rb4+ Kc2 Bad4 Kd1 Rb2 Ke1 Rc2 Bg4 Ne6 Bge2 Bh8 Bd1 Neg7
3n2bN/1PPBnqk1/QKrNrb2/1BP1rQ2/1B2R2R/7R/3qn1b1/1R5q w - - 0 1 illegal: No possible last move
RR2n1qB/PB2Pb2/1kNP2r1/5rqB/1nq1K1Qb/4nQ2/b4r1B/4NQ2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 c5 e4 Kc7 h4 g5 d4 f5 a4 b5 h6 f4 e6 c4 e5 g4+ Ke4 b3 e7 f3 e8B b4 d6+ Kb7 d7 b2 a5 f2 e6 b3 h5 g3 h7 c3 a6+ Ka7 h6 c2 d5 g2 d6 Kb6 Qg4 Nc6 Ne2 g1Q Bf4 c1Q Nd4 Qc4 Bh2 Nb4 Nd2 b1R Bg2 f1N Nf3 b2 Ne1 Be7 Bh5 Bh4 e7 Ne3 a7 Rc1 Rb1 Rc2 Qf3 Rf2 Qg4 Qdc7 d8Q Be6 Qf8 Q7c5 Qff4 Qg5 Qff3 Qc1 Nc6 Rf8 Bf1 Bf7 Ba6 Qg3 Bb7 Nf6+ Kd4 Nd7 Ke4 Rhg8 h8Q Rg6 h7 Qg1 Qhf6 Qc4+ Nd4 Qg2 h8B Qg1 Qe2 Qg3 Qf1 Qg1 Qff3 Qg2 Rd1 b1B+ Rd3 Ba2 Rb3 Qc1 Nc6 Nf6+ Kd4 Ne8 Ke4 Qcc5 Qg1 Rg7 Nd8 Qf6 Bc6 Bg6+ Qf5 Ka6 Bg4 Bg5 Qf1+ Nd3 Rg1 Nc7 Qe2 Bh4 Qf1 Be8 Ne6 Qc4+ Nd4 Qg6 Rb7 Nb4 Bh5 Qh6 Qf4 Rf5 Bd5 Qgg6 Rg5 Bf7 Q4g4 Qgh7 Rg6 Qg5 Rf6 Be6 Rf8 Qg8 Ra8 Rg6 Rbb8 Ne8 Bb7+ Kb6 Qgf4 Qa6 Nc6 Bf7 Q4g4 Qc4+
1kN2B2/Rb3KrP/4BnnP/6Bn/q2n1b1Q/1Nn1P3/QbB2r2/3R1R1r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kf3 d5 Kf4 Kd7 Kf5 Kc7+ e6 g5 h4 g4 c4 g3 b4 a4 c5 d3 h6 a3 c6 d4 b6+ Kd6 h5 d2 c7 d3 b7 a2 h7 f6 Kg6 g2 e7 f5 e8Q f4 b5 f3 h6 f2 b6 Ne7+ Kf7 Ng6 Nc3 Qh4 Qc2 d1N Na4 d2 Qee4 Nc3 Nf3 d1R Nd2 g1N Nb3 Nd7 b8R Bb7 c8B Rg8 Bg5 Nf3 e3 Nd4 Bd3 Nf6 Be6 f1N Rg1 Re1 Rd1 a1B Qa2 Ng3 Bc2 Ngh5 Rf1 Bb2 Qg4 Ra5 Ra8 Rf5 Ra7 Rf2 Qg3+ Qf4 Qh4 Kc6 Ra1 Bd6 Rd1 Bc8 b7 Kc7 Nb6 Kb8 Qa3 Qe4 Qa6 Bf4 Qa2 Bd7 Nc8 Qc6 Rc1 Qa4 Rd1 Bc6 Ra6 Kc7 b8B+ Kb7 Ba7 Kc7 Bb6+ Kb8 Ra7 Bg2 Bc5 Bb7 Rg1 Ref1 Bf8 Re1 Rg3 Rh1 Rgg1 Ne7 Rge1 Ng6 Rf1 Rg7+
1R2nbnR/1r5Q/N2q1q2/1n4rK/1R2NPB1/1b2P3/1Bn1B1P1/nQq1kB2 w - - 0 1 illegal: No proof kernel
1B2B2K/1RQqNq1q/r1qNN3/q3b3/NP5n/Q6B/1n1PP1bk/1R4rb w - - 0 1 illegal: No possible last move
1q3n2/N3K1Qr/Bbb1Q3/N5Pr/2r1qPQ1/b3PQR1/2kb1n2/R3B1Bb w - - 0 1 illegal: No proof kernel
Nb4Bq/6bR/2kr1bQn/2q1PQrN/3Br1b1/2bQPP2/2R2n2/2RK3Q w - - 0 1 illegal: No proof kernel
1r2r1k1/qQ1n1q2/b2B1n2/P1QR4/Bn3Pr1/b1P1N2r/r3QN2/1R3NNK w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 Kf7 Kf2 g5 Kg2 d5 h4 b5 a4 e5 h6 g4 h5 d4 c6 e4 a5 d3 f6 d2 c7 e3 c3 g3 h7 b3 h6 e2 Ba3 b4 Rh5 e1N+ Kh1 b2 Qe2 d1R Rd5 b3 Nd2 b1Q Bd6 Qg6 Rb1 Ba6 c8N b2 Nb6 Nd3 Nbc4 Qc7 Ne3 Nb4 Bg2 Be7 Ndf1 Nd7 Bf3 Kf8 f7 Qa7 Be4 Rb8 Bc2 Ngf6 Ba4 Rg8 h8N Rd2 h7 g2+ Kh2 Qf5 Ng6+ Kg7 Ne5 Rge8 Nd3 Kf8 Nh3 g1R Ndf2 Rg4 Kh1 Qg6 h8Q+ Qg8 Re1 b1R Qh7 Ra2 Ng1 Rd1 Qe4 Rd3 Rb1 Kg7 Qg2 Kh7 f8Q Qf7 Bc7 Bc5 Qe7 Kg8 Bd6 Nc2 Qge4 Ba3 Qc4 Nb4 Qc5 Nf8 Qb7 N8d7 Ng2 Rdg3 Nge3 Rh3+
2QB1R1q/k3b3/4nP1P/b4N1r/8/NBPR1bnK/rbQ1q1N1/1Q2Qqb1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 d5 Kf2 Kd7 Kg3 Kc7 h4 Kb6 b4 e5 f6 a5 f5 g5 h6 g4 h7 e4 h5 a4 h6 e3 f7 a3 f6 e2 Rh3 a2 Bd2 d3 Nf3 d4 Ne1 Bb7 Ng2 Ka7 Na3 Be7 f8N Bf3 Ng6 Nc6 N6h4 e1B+ Kh2 Qc8 Nf5 Nd8 Qb1 Ne6 b6+ Kb8 b7 Ka7 Be3 d2 b5 d1Q Bc4 Qe2 Bb3 Ba5 c3 Qb8+ Bf4 d3 Bc7 d2 Qc2 d1Q Kg3 Qe8 Bd8 Qdf1 Rb1 a1B b6+ Ka6 b8Q Bb2 Kh4 g3 b7 Qf8 Qf4 Ka7 Qfc1 Qe8 Qe1 Qf8 Nf4 g2 Rg3 g1B Ng2 Rc8 Kh3 Rc5 Nd6 Rg5 Nf5 Bd6 Rd1 Ne7 Rd3 Rhg8 h8Q Bdc5 Ng7 Nf5 Qh7 Be7 b8Q+ Ka6 Rg4 Ng3 Qc8+ Ka7 Nf5 Qg7 Rb4 Qh8 Rb8 Rf8 Bc7 Rd8 Qg6 Rd6 Bd8 Ra6 Qh5 Ng7 Nb1 Bc6 Bc7 Qe6 Qhd1 Bf3 Qd7 Qee2 Rf8 Bab4 Qc8 Ne6 Bd8 Ra2 Na3 Ba5 Qdb1 Rh5+
1B1QbR2/n3QNq1/1Pk1n1q1/3r1QR1/n4N1b/KBnr1n1P/2NP4/b4N2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 f4 e5 b6 g5 b7 a5 h3 c5 f6 c4 b5 e4 f5 g3 d6 g4 b6 e3 f7 g2 f6 g3 Ra4 c3 Nf3 g1Q Ra2 e2 Qc2 g2 Bb2 a4 Nh2 a3 Qb3 c2 Qe3 c1N Qe4 Qc7 Qf5+ Kc6 d7 Nh6 Be5 Be7 f8N Nb3 f7 Ra5 Ne6 Rd8 f8Q Nc5 Nf4 Nf7 Rb2 a2 Rb5 a1B Na3 Ng5 Nc2 Bf6 Qe7 Nge6 Bd6 Na4 Be5 Na6 b8Q Nb4 Rd5 Ba6 Qa8+ Qb7 Bb8 Bb5 Re5 Qd4 Rd5 g1N Bg2 Qc5 Nf1 Qd6 Bf3 Bg5 Bh5 Bgf6 Bf7 Bg5 Re5 Bf6 Rh2 Bh4+ Rf2 Qd3 Qh5 Qg6 Rg5 Nf8 Bb3 Ne6 Qa7 Qc7 Qg4 Qe5 Qf5 Qeg7 Qa6 Bc4 Qa7 Rd5 Qa5 Rd3 Qae5 Bb5 Qd4 Kb7 Qdf6 Nc6 Qff8 Na7 Qg8 Rc8 Qge8 Rc5 d8N+ Ka6 Q8d7 Rcd5 Nf7 Ka5 Qdd6 Be8 Qdd8 Kb5 Nh5 Nf8 Qfe5 Nd7 Nh8 Rg3 Rf8 Ndc5 Nf7 Ne6 Nf4 Kc6 Qe4 Q7f6 Qf5 Qfg7 Kf2 Rg4+ Ke3 e1N Ke4 Ne2 Ke3 Rg1 Ke4 Nec3+ Ke3 Ncb5 Ke2 Rg4 Kd1 Rg3 Kc1 Rgd3 Kb1 Nf3 Ka2 Nbc3+ Ka3 Re5 Rh8 Rb5 Rf8 Rbd5
K3r3/2r1R2P/b1n1PrBn/q6r/NbQPr3/B4Q1q/Rn1kB3/1B3QN1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 g5 Ke4 f5+ Kd4 b5 h4 b3 a4 f4 e4 g4 a5 f3 e6+ Kd6 a6 b2 a7 b4 e7 g3 e8B b3 h6 f2 h5 g2 h7 Ba6 Ra2 Nh6 Be2 f1R Bg6 Rf6 Nc3 b1N Na4 b2 Qf1 Na3 d3 b1Q e5+ Kd7 d6 Ke6 Kc5 Qb3 d4 Nc4 Bb2 Qh3 Ba3 Nc6 Bb1 Rb8 a8B Nb2 Bg6 Be7 Rh2 Re8 h8Q Rb3 Qf8 Re3 Bb1 Re4 Qf3 Rff4 Qg8+ Kf5 Qc4 Kg5 e6 Rf6 Kd5 Bf8 d7 Bb4 Bb7 Qa8 d8Q Qa7 Qfd3 Kf4 Qa8 Qb6 Qd1 Ke3 Qf1 Kd2 Rh1 Ne5 Rh2 c5 Bc6 Qa5 Kd6 Rg8 Be8 Nc6 Bg6 Rb8 Kd7 Re8 Qb7 Re7+ Kc8 Rh7 Qb5 c4 Qc5 c3 Qc4 c2 Rh1 Na7+ Kb8 c1R Ka8 Rc7 Qbd5 Nc6 Qdf5 Rc3 Qg4 Rg3 Qgf3 Rg5 Rh2 Nf5 h6 Rh5 h7 Nh6 Rh1 Qhf5 Rh3 Qg4 Rg3 Qgf5 Nh3 g1R Rg4 Rg2 Ng1 Rg3 Rg5 Qh3 Rd5 Rgg5 Rd7 Rd5 Rg7 Rdd7 Rf7 Re7 Rg7 Nb8 Rf7 Re8 Re7 Nc6+
8/b2RPr1k/R5bB/K1NPn3/n2Q1P1q/1Br2qb1/nN2nnQ1/1Q4NQ w - - 0 1 illegal: No proof kernel
2bB1bB1/R1rP3Q/q6Q/r3P2r/1nN1qR2/1q1P2nr/1rk5/2NRK1BB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 Kd6 e4 Ke5 g6 Kd4 d3 a5 d6 c5 b6 f5 d7 h5 b5 h4 e5 c4 b7 f3 g5 f2+ Kd2 c3+ Ke2 h3 b6 a4 g7 f4 g6 a3 Bg2 f1R Bb2 a2 Na3 h2 Nb1 Nf6 g8B Rf3 g7 Rfh3 Bc1 f3+ Ke1 c2 Nd2 Kc3 Nc4 R8h5 Be3 Ne4 Qc1 Nc6 b8R Ra5 b7 Qb6 Ne2+ Kb3 Bg5 Ng3 Bd8 Nb4 Qh6 Qa6 Rd1 a1Q Rf1 c1R Bh1 Kc2 Ra8 Qa2 b8B Qb3 Ra7 Rb1 Nc1 Rb2 Bg2 h1Q Bbc7 Qg1 Bb6 Qd4 Bh1 Qh4 Bg1 Qd4 Bf7 Qh4 g8Q Qf4 Qgh7 Qe4+ Be3 Qc3+ Rd2+ Kb1 Ne2 f2+ Kd1 Rc2 Nb6 Kb2 Nc1 Kb1 Bg8 Qa3 Bd4 Rc7 Nc4 Qa2 Re2 Qb3+ Kd2 Qf3 Re4 Qg2 Rf4 Qf3 Rg1 Qe4 Na2+ f1R Bb6 Rc1 Rd1 Rf5 Bg1 Rfh5 Ne3 Kb2 Ke1 Rb1 Nc1 Kc3 Bh4 Rb2 Bd8 Qg2 Nc4 Kc2 Q7g7 Qd5 Qgh7 Qe4+
3b2qn/N1BP1k2/1R5R/2rPnPQ1/1r3b1B/5bqN/NQB2r2/rK2Nr2 w - - 0 1 illegal: No possible last move
n2BBr2/3PQR2/NN1n1r2/r1PRPN1q/r2q1Q1K/3Q4/rn1bb2N/4k3 w - - 0 1 illegal: No proof kernel
3RK2r/1N1P3N/N1BP3n/1bN1B1Qn/rqb5/1Q2P1q1/1R3b2/k1rb2Bb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 c5 b4 h5 d4 f5 b6 a5 g6 f3 g5 h4 b5 a4 b7 f2 d6 f4 g7 a3 g6 a2 d5 f3 d7 h3 Ke6 h2 Kf7 Qh4 b6 Kb4 Be3 c4 Nc3 Ka3 Ne4 Kb2 Bg2 f1B Nd6 c3 Nh3 f2 Rb1+ Ka3 Ke8 a1Q Rb2 c2 Ng5 c1R Nge4 Qg3 Nc5 Nh6 g8N Na6 b8N Qb1 g7 Bb7 Nf6 Nb4 g8Q Ra4 Qg5 Nd3 Nba6 Nf4 Nh7 Nh5 Rg1 Bc6 b7 h1B b8B Bb5 Ndb7 Qe4+ Be5 Qb4 Bf3 Bh3 Rg2 f1B Bg1 Bg4 e3 Bfc4 d6 Be7+ Qg8 Bg5 Bc6 Bh4 Rgf2 Bge2 Rf8 Bef3 Qg5 Bg4 Rb1 Ka2 Rb2+ Ka1 Qd3 Bd1 Qb3 Qh2 Ke7 Bf2 Rd8 Bg8 Kf8 Qg3 Ke8 Bgc4+
k2qQ2b/2Pn4/1n4rB/2rrNB2/KQP3q1/1R3B1R/brP5/RNR3br w - - 0 1 illegal: No proof kernel
Q1rNK1qq/qP4r1/1RN2B1R/1rkB1Bb1/1qP1Pq2/2nQ3n/B5b1/5R2 w - - 0 1 illegal: No possible last move, all moves rejected
1Kn5/P4k1b/b1R5/1q2b1B1/1Rn1B3/N1PP1qbN/1BNbB3/Q1Qrr2n w - - 0 1 illegal: No possible last move
bb2rQqR/N2b2nB/K1R4r/Bb6/3PNQN1/3B1nbP/k1B2P2/2bb4 w - - 0 1 illegal: No proof kernel
5N1b/B2nK3/PbbBR2r/bNN1P1nr/1N1bbQQ1/7R/1q2P3/k2B1b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 Kf2 Kd7 Kg3 f5 Kf4 c5 h4 b5 a4 g6 d4 b4 h5 b3 a6 c4 h6 b2 a7 c3 a5 g3 d6 Ke6 h7 Kd5 d7 Kc4 d5 c2 d6 Kb3 Bg2 Bg7 Nf3 Qf8 Kg5 f4 d8N Nh6 d7 Qb4 Rh3 Bb7 Qd2 Bc6 Nc3 b1B Ba3 c1B Nb7 Bbe4 d8B Nd7 Ne1 f3 Nc2 f2 Qf4 f1B Bb6 Bd2 Nb5 Qc3 a6 Qb2 Bd6 Ba5 Rb1 Ka2 Nc5 Rac8 Bh1 g2 a8Q g1B Ba7 Bd4 Bf3 Rcf8 Qc8 Rf6 Bg4 Re6 Bf5 Rf6 Rd1 Re6 Rd2 Rf6 Nb4+ Ka1 Na4 Bdb6 Be6 Bd4 Bb3 Bdb6 Nc5 Nf7+ Kh4 Re6 Bd1 g5+ Kh5 g4 Rdd3 Rd8 h8N g3 Ng6 g2 Nf8 g1B Rdg3 Bf2 Rg6 Bd4 Rf6 Bh8 Rh6 Re7 Re6 Ng5 Kh4 Rh7+ Kg4 Bf3+ Kf5 Rh5 Kg6 Nh7 Kf7 Ng5+ Ke7 Bfe4 Nh7 Rg8 Nf8 Rh6 Qe8 Rh5 Qg6 Rh6 Qgf5 Rgg6 Q4g4 Rh5 Qff4 Rgh6
b1b3n1/1R3PPb/2Bk1qb1/1n1br1BP/1b1b1Q1B/1NR1rQ2/1B2K3/NR6 w - - 0 1 illegal: No possible last move, all moves rejected
3r1n2/4QK2/1QB1n3/1R2N1r1/3P1Qnr/1nP1b1P1/2NQbq1q/R1b1BkB1 w - - 0 1 illegal: No proof kernel
NbnQK2k/6R1/Nq1nR2r/1B1b2QP/2NB1Bq1/4nP1B/1bn3P1/q2r4 w - - 0 1 illegal: No proof kernel
N4nq1/1B3Qb1/3N1R1B/2K2PB1/br1r1nnP/R1Qq4/PQb1k1q1/6Bq w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 h4+ Kf4 d6 e5+ Kc4 c5 d7 g5 f6 b5+ Kd5 c4 f3 b3 h6 b4 h7 g4 f7 e4 d4+ e3 Bd3 c3 Na3 g3 Nb5 c2 Qe2 g2 Nc7 b2 Rh3 b1Q Ba6 b3 Bb7 Bg7 f8Q+ Nf6+ Kc5 b2 d5 Ra4 d6 Rd4 Qf7 Qg8 d8B Bd7 Na8 Ba4 d7 Rb4 Bd2 c1N Bb6 Qd3 d8B b1B Rg3 Bbc2 Nh3+ Kf5 f4 g1Q Rf3 Kg4 Ng5 Qg2 Ne4 Rd4 Qf2 e2 Nd6 e1Q f5 Qd1 Bh6 Qdh1 Rb1 Ne2 Qe1 Rb4 Qc3 Nf4 Rb3 Rd4 Ra3 Rb4 Re3 Rd4 Re4 Kf3 Re6+ Kf2 Be7 Ng4 Rf6 Ke2 Qb2 Nc6 Ba7 Nce5 Bd8 Neg6 Be7 Qb8 Bd8 Re8 h8Q Re3 Be7 Ree4 Qc8 Nf8 Qc7 Qc1 Qa5 Qcd1 Qac3 Qdh1 Ne8 Rd5+ Kb6 Rc4 Nd6 Qc8 Rg6 N8e6 Beg5 Qg8 Rf6 Re4 Qe7 Nf8 Qf7 Bb3 Kc6 Rb4 Bg1 Rdd4+ Kc5 Ba4
rkn2q2/1bnR2B1/r1R4b/1NNBP2Q/Q4n1n/5P2/P1q1Q1QK/2b3rR w - - 0 1 illegal: No proof kernel
2nrkr1N/2R2Rb1/2Nn1Qq1/3NP2B/q4b2/Q1Pnr3/KRb1NrP1/2B5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 e6 a5 b4 f5 e4 h5 g6 d5 b6 h4 b7 h3 g7 a4 b5 f4 b6 h2 Bb5 d3 Kc3 d4+ Kb2 d2 Bd3 f3 Ba6 f2 Be2 f1R Ra2 a3+ Ka1 d3 Bb2 Qd6 Qc1 d1R Bh5 d2 Nc3 Nc6 b8N Na7 b7 Rf2 Nd5+ Kd8 Nd7 Re1 b8N d1Q Ne5 Nf6 g8R Ne8 Ng6 Bh6 Rf8 Bf4 Rf7 Re3 Ne2 Rf8 Nh8 Qd4 Rd1 Qa4 Rd3 Ba6 Rc3 Bd3 Rcc7 Qb6 Qb1 Qd6 Bc1 Qdc6 Qb4 Qb6 Kb1 Qbc6 Ra1 a2+ Kb2 Qb6 Rb1 Qbc6 Qa3 a1B+ Ka2 Bg7 c3 Bc2 e5 Qca6 Bg4 Qd3 Bh5 Nd6 Rb2 Qg6 Na6 Rb8 Nab4 Rc8 Rc5 Rb8 e7+ Kd7 Rc4 Rbd8 Rc5 Nac8 Rc4 h1N Rc6 Rff3 Rc7+ Ke6 Nc6 Nf2 Rb8 Nd3 Rb2 Rf2 e8Q+ Ne7 Ng3 Rd7 Qd8 Nec8 Qg5 Rdd8 Ne2 Ne7 Rc8 Kd7 Qf6 Ke8 Rc7 Nec8
3N2bk/1R1n3b/1BB3b1/1rnP3K/QNBrB3/1r1RQ1PN/Pb5q/2q3q1 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 c5 Kg3 h5 Kh4 f5 e4 Kf7 d4 Kg7 d6 b5 d7 f4 g3 c4 e6 c3 e7 b3 e8B b4 e5 c2 e6 b2 e7 f3 g6 f2 Rh3 b3 Kg5 h4 Bf4 c1Q Qe1 Na6 Be3 Qb6 d8Q Bf5 Bc4 f1B Bc6 Nc5 e8B Ra4 Qa8 Nf6 Na3 b1R Be4 b2 Nc2 Nfd7 Nb4 Rg8 Qf2 Kh8 Kh5 Bg7 d5 Bd3 Rh1 h3 Bd4 h2 Qe3 Ra3 Nh3 Rb3 Rd1 h1Q Qa4 Qh2 Rd2 Bc2 Rd3 Qa7 Be5 Rf8 Bc7 Be6 Bb6 Rf4 Na6 Bg8 Nb4 Ne5 Bc6 Ned7 Bf5 Rd4 Be4 Qc7 Bh1 Qcg1 Be4 Rf1 Rad1 b1B R1d2 Rf3 Rf2 Rf8 Rf7 Ra8 Re7 Ra5 Rf7 Rb5 Re7 Qf4 Rf7 Nb8 Rb7 Nbd7 Bf3 Qf7 Rd2 Rf4 Bc7 Bb2 Bb6 Rd4 Bh1 Qff1 g7+ Kh7 Bf3 Be6 g8N Qc1 Nh6 Bg8 Nf7 Be4 Nd8 Kh8 Bh1 Beh7 Bg2 Bbe4 Rd3 Bef5 Be4 Bfg6+
1Qq5/1R2rrb1/BK3r2/NNP3Q1/qRqB3n/2nR1P1b/k1PQ1q1b/3R4 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Kd2 a5 Ke3 d5 Kd4 Kd7 g4 e5+ Ke3 h5 b4 h3 g5 h4 f6 d4+ Ke4 h2 Kd5 e4 g6 h3 g7 a4 f3 a3 b6 d3 b7 e3 f7 a2 b5 e2 b6 e1B Ne2 d2 Rg1 h1Q Nec3 h2 Ba3 Qg2 Ba6 h1Q Bc4 Ra7 Bf1 Nc6 b8Q Nh6 g8R Bg3 b7 Bg7 f8R Nb4+ Kc4 Kc6 Rf7 Bh2 Qg3 Nd5 b8Q Bh3 Rf4 Nf5 Rg4 Re7 Bb2 Rh7 Na3 Qf2 Rb1 a1Q Ncb5 Qc8 Rd8 Nh4 Bd4 Nc3 Qe1 d1R Qd2 Qhg2 Rf4 Rde1 Qg5 R1e6 Kb4 Rf6 Ka5 Qgg4 Be2 Re5 Rgd1 Re7 Re4 Ref7 Rb4 Qa2 Re7 Qge6 Rb7 Qec4 Nd6 Qab3 Nab5 Re7 Qgf4 Kd5 Kb6 Qa4 Qg5+ Qf5 Rc7 Nb1 Ba1+ Qd3 Bd4 Bh8 Be5 Qc8 Rb7 Rhf7 Nd4 Bg7 Nc6 Qdd4 Ba6 Qd3 Rb2 Nc3 Nb5+ Kc4 Rd6 Qb3 Na5+ Kb4 Rbb1 Qc4 Rb2 Be6 Rd3 Bh3+ Ka7 Ka4 Bd4 Qa3 Nd6 Qaa2 Rb4+ Ka3 Kb6 Qab3 Qf5 Qa4 Qfg5 Rf4 Nb5+ Ka2 Qg1 R4f5 Qgg5 R5f6+
nq3N1n/1b2qB1R/2Qn4/P2r1kbP/1B1B1P2/1b2R3/3q1QNr/bK1N3N w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 d4 e5 Kd2 c5 Kc2 g5 a4 b5 a5 e4 d6 g4 h6 b3+ Kb2 e3 d7 c4 d5 g3 h7 b4 d6 g2 Nh3 g1B Qd5 e2 Rh2 e1Q Qe4 Be7 Qd5 Nh6 Qb5 Nf7 Bd2 Bb7 Nc3 Bd4 Nf2 Na6 Nh1 Nc7 Qc6 Qb8 d8B Qe3 Kc1 b2+ Kb1 Qe6 Nd1 c3 Bc4 c2+ Ka2 b1N d7 c1Q Bd5 Na6 Bb6 Nc7 d8Q Na3 Qde8 Be5 Bd4 Nc4 Rb1 Ra6 Rb3 Ncd6 Re3 Na8 B2c3 Qd2+ Kb1 b3 Bb4 b2 Qd8 Ne4 Qdb6 Ned6 Qbc5 Rd8 h8N Qd7 Ng6 Nh8 Bf7 Rb6 Ka2 b1B+ Ka1 Bc2 Ka2 Ba4+ Kb1 Bb3 Qc2 Qc3 Qf2 Qd2 Rhh3 Kg7 Rh2 Bg5 f6+ Kh7 h5 Qe7 Rg2 Rb5 Rgg3 Rd5 Nh4 Kh6 Ng2 Rd7 Bb6 Ba1 Bd4 Kh7 Bg8+ Kh6 f7 Rc7 f8N Rc8 Bb6 Kg7 Bf7 Kf6 Bd4+ Kf5 Rg4 Bf6 Rg7 Bg5 Rh7 Rc7 Qb5 Rc2 Qc6 Rc3 Re1 Rh3 Re3 Rh2
1QrB1b1b/5n2/b3PnB1/3Nr3/n2nBRQ1/1qP4Q/1PQRq3/1NK1kq2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 Ke6 e4 f5 b6 d5 b7 a5 h6 g5 h7 d3 h5 d4 h6 f4 Rh2 a4 Ra2 f3 Re2 a3 Re3 g4 Re2 f2 Nf3 g3 Ra1 a2 Na3 g2 Re1 g1B Nb1 Qb6 Nc3 Qb3 Bg2 f1Q Re2 Nd7 b8Q Ra5 Nd5 Ngf6 Rb1 Rg8 h8Q a1N h7 Ba6 Qg7 Rc5 h8Q Rc8 Qg3 Rg5 Qhh3+ Rf5 Qde1 Bh2 Kd1 d2 Qgg4 Bf4 Rf2 B4h6 Bh1 Bhg7 Re2 Bh8 Rh2 Kf7 Bg2 Rg5 e6+ Kg6 e7 Ne5 e8B+ Nf7 e5 Qa4 e6 Nb3 Qgf4 Re5 Ra1 Qac4 Ra4 Qc3 Ng5 Qb4 Ne4 Qa3 Qff3 Qa2 Nec3 Kg5 Qf2 Qa3 Be4 Qb4 Qh6+ Kg4 Nb1 Qc3 Qe2+ Qcf3 Rf2 Kg3 Qh7 Nc5 Rc4 Na4 c3 Qd3 Qeh5 Qde2+ Kc2 d1N+ Qd2 Nh6 B8g6 Nf7 Rf3+ Kg2 Rd3+ Kf2 Qg4 Ne3+ Kb3 Ng8 Qhh3 Nf6 Qc2 Nf5 Bg5 Ke1 Rd2 d3 Ka2 Nd4 Ka1 Ng8 Bd8 Nf6 Bf3 Nb5 Rf4 Nd4 Bfe4 Qef3 Rg2 d2 Ka2 d1Q Rd2 Q3d3 Qc1 Bh6 Na3 Qb5 Qb1 Ne8 Qc2 Qde2 Kb1 Bf8 Kc1 Nf6 Nb1 Qb3
4NR2/N1QqrRb1/1n2P1Kb/P1nk4/3q1r1Q/R1Bb4/4P2q/1B2BqBr w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 b5 Ke4 g5 Kf5 c5 a4 f6 d4 c4 h4 g4 a5 b3 h6 b4 e6+ Kd6 h7 g3 h5 g2 h6 b2 Be3 b3 Kg6 c3 Nd2 b1Q+ Ne4+ Kc7 d6+ Kc6 d7 b2 Qc1 c2 Ra3 f5 Nf6 f4 Nf3 g1Q+ Bg2 Ra7 Ne8 Qh2 Bg1 Kd5 Ne5+ f3 Nc6 Qa1 Bh3 b1Q Bf5 Qe7 d8Q+ Qd7 Qh4 f2 Bd3 Rb7 Na7 f1R Qcf4 c1B Qc7 Qb6 Bf5 Rf4 Bb1 Qf2 Rhh3 Bg7 Rhf3 Qh2 Rf2 Nf6 Rff3 Rf8 h8B Na6 h7 Nc5 Rf2 Rf7 Rf1 Re7 Rff3 Kc4 d5 Rb8 d6 Nd5 Rf2 Ba6 Rff3 Qb4 Rf2 Nb6 Rf1 Bgb2 Bc3 Kd5 Be1 Bg7 h8B Qbd4 Rff3 Qac3 Rf2 Qch3 Rff3 Qf1 Rf2 Q7a4 d7 Ra8 d8R+ Qd7 Nd6 Bc4 Rf8 Rd8 Ne8 Bd3+ Kh5 Rg4 R2f7 Bch6 Qc8 Rf4 Qc7 Ne4 Kg6 Rc8 Qb8 Rc1 Qc7 Nc5+ Kh5 Qb2 Bg3 Bf6 Be3 Qfg2 Bef2 Rh1 Bg1 Qf1 Be1 Bfg5 Bhd4 Bg7 Bf6 B5h6 Be5 Ba6 Kg6 Qd2 Ba1 Qd4 Bac3 Bd3+
N7/RrN1r3/q1k1P1N1/P1qnr1Bb/3Q1n1R/2PQN1K1/6BB/3qr1bb w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 b5 a4 g5 e4 d5 h4 Kd7 h6 f5 e6+ Kc6 e5 f4 c3 d4 h7 f3 h5 d3 e7 d2 e8N g4 a5 g3+ Ke3 b3 Kf4 f2 h6 b4 e6 b2 Kg4 g2 Kg3 b3 Ra4 Bb7 Na3 b1R Ne2 b2 Rd4 Nd7 Rhh4 Ngf6 Nc7 g1Q+ Bg2+ Nd5 Nf4 f1Q Ng6 Qa6 Nc4 Ra7 Ne3 Ne5 Qe2 d1R Qd3 Re1 Rdf4 Rg8 h8Q Rg7 h7 Re7 Rf7 Qc8 Qe2 Nd3 Qd4 Nf4 h8B Ra1 Qed3 b1B Bf6 Ba8 Rfh7 Rb7 Bg5 Re2 Bd2 Qd1 Be1 Bh6 Bf2 Re1 Bg1 Ra2 Bh2 Rae2 Nf5 Re5 Ne3 Bc2 Rf7 Qc1 Rh7 Bd1 Rf7 Bh5 Rh7 Qd1 Rg7 Rb5 Rf7 Kb7 c6+ Kb8 Ne8 Nf6 Bh3 Ra7 c7+ Kb7 Nf1 Ng2 Bd2 Be3 Re7 Bg1 Bg5 Nf4 Ne3 Qd7 c8N Qc7 Rh7 Rb4 Nb6 Qe7 Ng7 Qc5 Bf1 Kc7 Bh3 Bh1 Ne8+ Kc6 Na8 Rd7 Bg2+ N6d5 Rg7 Rd8 Rb7 Rd7 Ra7 Re7 Nec7 Rb7
b2R1BKq/q7/rP2NQn1/R1rQ3B/P3P1Bq/nRn5/rq6/2k1b1NR w - - 0 1 illegal: No proof kernel
3q1R2/1r2b3/1PNnbn2/bB3PQP/3RN3/1rBQ3K/1R1n1bqB/2k1qR2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 Kf2 Kf6 Kg3 a5 h4 c5 d4 g5 b4 e5 h5 c4 b6 c3 b5 a4 d6 e4 d5 a3 b7 a2 d7 e3 b6 c2 d6 e2 Rh3 e1Q+ Kh2 g3+ Kg2 g4 Qe2 Rh7 Be3 c1N Nf3 Nc6 b8R Ra3 Nbd2 Nb3 Qd1 Be7 Ne5 Na7 Nc6 Nb5 Rh2 Rf7 Rc1 a1B Bg1 Bc3 Rb1 Ba5 Ne4+ Kg7 f6+ Kh6 f5 Nd2 Qe2 Rb3 Qd3 Rh7 f7 Nf6 f8B+ Rg7 Nf2 Kg5 Ne4+ Kf4 Rh1 Rf7 Rb2 Rh7 Bh2 Rg7 Qb1 Ke3 Bc4 Rh7 Rf1 Rf7 Bd5 Ke2 Qd3+ Kd1 Bc4 Rh7 Bg7 Kc1 Kg1 g2 Bh8 Qf8 d8Q Be6 d7 Nd6 Bb5 Rg7 Bf4 Qg8 Kh2 g3+ Kh3 g1B Rc8 g2 Bh2 Bf2 Ra8 Rh7 Bg7 Nd5 Bc3 g1Q Rb8 Q8g5 Qg8 Qh1 Rf8 Nf6 d8R Qhg1 Qh8 Qg8 Qg7 Qg6 Rd7 Qe8 Qg1 Qd8 Qg5 Nc8 Bce5 Bec5 Qg2 Qg6 Rd6 Rb7 Bc3 Bcb4 Rd7 Be7 Rd4 Nd6 Qg4 Qg5 Qf4 Qg1 Qg5 Qg2+
rbR2B2/2nnnkP1/3rb2q/7P/4KB1Q/2BP2rR/1b1qB2N/1QN1r2N w - - 0 1 illegal: No proof kernel
B4rB1/1Qn2rPR/Rq1N1k2/1PQ3n1/N1N2r1K/4bP2/n2BNqr1/q2b4 w - - 0 1 illegal: No possible last move
Bkq1n3/1b3rP1/B1Pbn3/5q1R/1NR2R2/1PBn3r/K2qQ1N1/bBq3Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 c4 d5 Kc2 Kd7 Kb3 Kc7 e4 h5 g4 f5 c5 d3 g6 h4 g7 a4+ Ka2 a3 g5 d4 b3 h3 b6+ Kb7 e6 d2 e7 d3 e8Q f4 e5 h2 e6 f3 g6 f2 e7 Qd4 Nh3 Qd7 Nc3 Rh5 Nf4 Na6 Bb2 Ra7 Ng2 Nf6 g8B Kb8 b7 Nc7 g7 Ne6 Rc1 Rh3 Bh7 Qc6 Qe2 d1Q Nd5 d2 Qg6 Ne8 Rc4 Qc1 Nb4 d1Q Bc3 Qc7 Qgg4 Qcd7 Bb1 Qd1d2+ Ka1 a2 Qg5 Nf6 e8B Bd6 Qge3 Qc7 Bc6 Ne8 Qg5 Bd7 Qge3 Qc8 Bd5 Bc6 Rf4 Kc7 b8R Ba8 Rb6 Bb7 Rc6+ Kb8 Rc7 Ba6 Ba8 Bb7 Rg1 h1N Rc6 Ng3 Rh1 Ne4 Rc7 N4g5 Qg3 Nf3 Qh2 Ne5 Qg1 Nd3 Rh2 Re3 Rh5 Rg3 c6 Rh3 Rcf7 Ba6 R7f5 Rf7 Rc5 Bb7 Rcc4 Qa3 Qe1 Qa5 Be2 f1Q Qd1 Qf5 Qc2 Ne5 Kb2 a1B+ Ka2 Qfc1 Bd3 Qf2 Qe2 Qfe3 Rce4 Qf2 Ba6 Nd3 Rd4 Qfe1 Rc4 Qed2+
B4r2/R1r1RPR1/Nq2q2r/bk6/1Bq1NKQ1/5P2/b1NrPQ2/bn4nR w - - 0 1 illegal: No proof kernel
qBR4n/1Q3Pq1/3RB3/Qrr1P3/5Nrq/1bq2Rb1/1PBNBK2/5nnk w - - 0 1 illegal: No possible last move, all moves rejected
rnb1BB2/n1R2PRN/1b6/qP4Q1/1n2k2P/1r1NB1bB/2Qn2Kr/6Rq w - - 0 1 illegal: No possible last move
K1QRr2R/2nP2r1/4Bb2/1n3r1b/k1n2Nrb/3PR3/qP1Q2RN/B1q3N1 w - - 0 1 illegal: Other
b2Q1b1n/q1RPr3/4RPK1/BRb1BP2/1N3RBq/3n2kn/4Qr1b/2N3q1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 a5 f4 c5 d4 e5 b4 h5 g4 a4 b6 c4 f6 a3 b5 h3 g5 c3 b7 c2 b6 h4 g6 a2 g7 h2 Bg2 h3 Nc3 Rh7 Nce2 Na6 b8R Nb4 b7 Nh6 g8R Nf7 Nc3 Nd3 Bd2 c1B Rg4 Ba3 Qe2 Bc5 Rc1 a1Q Bf3 Qa7 Na2 Bd7 Nb4 Bc6 Kf5 e4 Kg6 e3 Rh4 Qe7 Rh6 Qe4+ f5 Qh4 Re8 Rc8 b8B+ Rc7 Bg4 Ba8 Rf1 Rh8 Rf4 Rh7 Qg2 e2 Qf3 e1B Ne2 Bf2 Nc1 Bg3 Qe2 Rh8 Re1 h1N Re5 h2 Rh7 Nhf2 Rg7 h1Q Rh7 Kd7 d6 Bh2 d5 Qg1 Re6 Nh3 Ref1 Kc8 d7+ Kb7 d8Q Re7 Rg7 Rh7 d6 Rh5 Nba2 Kc6 Ba5 Kd5 Rb4 Rh7 Rb5 Rh5 d7 Kd4 Rg8 Rh7 Be5+ Kd5 Qd1 Ke4 Nb4 Ke3 Rf4 Rh5 Rd4 Kf2 Rf4+ Kg3 Qd2 Bh6 Re8 Bf8 Rc6 Rh8 Rc7 Rh7 Bd4 Re2 Re6 Rf2 Qe1 Nfg5 Be5 Re7 Qd2 Nf7 Qe2 Nh8#
1r6/RrPq4/N5b1/1BN2n2/Nbq2RQK/2nP2BN/r1kn1Pb1/B3Qb2 w - - 0 1 illegal: No proof kernel
3b1R1r/K1PQ2Q1/2RqBB1n/n1P3q1/1BNq4/1q4kP/4BRr1/1b1Nb1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 c4 Ke6 b4 Ke5 e4 a5 h6 d5 h7 g5 c6 f5 c7 d4 h3 f3 b6 d3 Ke3 g4 b7 g3 b5 a4 b6 d2 Ne2 g2 Ba3 g1R Nec3 f2 Bb4 a3 Be2 f1Q Rh2 a2 Rf2 Qh4 Na3 Qg2 Rc1 Nc6 b8B a1B b7 Nh6 Qa4 Qf6 Nd1 Na5 Qd7 f4+ Kd3 Rg8 h8Q f3 Qhg7 Kf4 e5 Bc3 e6 Qh4 e7 Qgg5 e8B Be7 Ba7 Bd8 b8R Kg3 Bf7 Qhg4 Be6 Qd4+ Kc2 Qd6 Bd4 Rh8 Kd3 Ra6 Nb2 d1Q+ Ke4 Ra8 Bf6 Qb3 Nd1 Be1 Rc2 Qa6 Kd4 Rg2 Rf1 f2 Rb6 Rb8 Rc6 Qb6+ c5 Ba6 Rd2 Bd3 Nc4 Bf5 Kd5 Bb1+ Kd6 Rg8 Rh1 f1Q Rg1 Qff3 Rf1 Qfg4 Rf2 Qb7 Rd5 Qa7 Rdf5 Qd4+ Rd5 Rb5 Qh8 Rb8 Be7 Qgh4 Rb6 Rg1 Bg5 Bf6 Ra6 Rg6 Qhg7 Rh8 Rb6 Qh5 Rb8 Qhh4 Rf8 Bd8 Bf6 Rg4 Bg8 Qg5 Be6 Qdc3 Rd4 Kh4 Rd3 R4g2 Rd2 Nb7+ Kc6 Kg3 Rd6 Na5+ Kb5 Qa8 Kb6 Qd5 Rc6 Qcd4 Ka7 Qd6
Qqn1R1b1/P5bk/1Bq4b/3Qn3/1rB3rP/q1b1K2R/1NP2N2/1r1N2NB w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 a4 e5 f4 b5 h4 d5 h6 g5 a5 g4 h7 Kg7 a6 g3 a7 e4 c6 e3 c7 d4 Ra5 d3+ Kf3 e2 Bb2+ Qf6 Ra1 e1B Rh3 g2 Nc3 b3 Ke3 d2 Bc4 Be6 c8B b4 Bb7 Nd7 Qf3 d1Q Qd5 Qg4 Nd1 Ne5 Bd4 b2 Bb6 b1Q Ra3 Qe7 f6+ Kg6 f7 b3 Ra1 Bg7 f8Q b2 f5+ Kh6 f6 Rb8 f7 Qg6 Qe8 Bc3 f8N Qa3 Nd7 Ne7 Nf6 Nc8 Ne4 Rg8 h8N Kh7 Nef2 Bf7 Qf8 Qc6 Ng6 Bh6+ Nf4 Rg4 Qe8 Bg8 Ba8 Bg7 N4d3 Rb7 Bc7 Rb4 Bb6 Qba2 Qf8 b1R N3b2 Q2b3 Qff3 Qa6 Ra5 Qa3 Rb5 Qab7 Rc5 Qb8 Bb7 Qf6 Rc7 Qc6 Re7 Be6 Re8 Bg8 Ne2 g1B Ba8 Bh2 Ng1 Bf4+ Ke2 Rg5 Qd2 Qcd6 Bc6 Bg3 Ke3 Rg4 Qd4 Qe6 Qd7 Qd5 Qb7 Bh2 Qa8 Qd7 B6d5 Qc6 Qf7 Bg3 Bh1 Bh2 Qd5 Bf4+ Ke4 Nf7 Kd3 Be3 Ke2 Beh6 Kd3 Ne5+ Ke2 Rf4 Ke3 Rg4+
2Q1BRb1/Pqn2q2/3N1Q2/B1q1NPb1/R1n2r1r/1Q4n1/N3K1P1/n1Qr3k w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 f4 h5 d4 c5 a5 e5 f6 Kg6 d6 Kf5 f7 b5 d5 h4 a6 c4 d7 c3 d6 h3 g6 e4 a7 c2 g7 b3 Ra4 e3 Ba3 c1Q Rd4 h2 Rd3 b4 Ne2 Kg4 Nec3+ Kg3 Bb2 Rh4 Na2 Qc5 Ba1 b2 Nac3 b3 Be2 Na6 Bf1 Qdc7 d8Q Nh6 g8Q+ Ng4 d7 Bh6 f8Q Bg5 Ke2 Ne5 Qff6 Nc4 Na3 b1Q Nab5 b2 Rd4 Rb8 Rg1 h1N Na2 Kh2 Nd6 Rb4 Qc1 Qb7 Qc7 Qh7 d8N b1R Nc6 Be6 Ne5 Qf7 Qcc8 Nc7 Bc3 Ra4 Ba5 Ng3+ Kd1 Bd5 Be2 Ra1 Bh5 e2+ Ke1 Rb4 Rf1 Ra4 Kf2 e1N Bg6 Nc2 Bh5 Qh7 Be8 Rb1 Qge6 Na1 Ke1 Qf7 Rf3 Nf1 Ke2 Kh1 Rf2 Be4 Qd5 Bh7 Qf3 Bg8 Qb3 Nb2 Re4 Rd4 Rf3 Rd1 Ra4 Nc4 f5 Rdd4 Rg3 Rdf4 Rg4 Rh3 Rh4 Rh2 Rh8 Rhh4 Qcc2 Rd1 Qc1 Bh7 Rf8 Bg8 Be1 Na8 Bd2 Nc7 Ba5 Ng3+
rb4bn/P2R1nQ1/3Nq3/P1P4N/kBqrbR2/1RK4R/B1nQ2rB/4n3 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Kd2 e5 h4 d5 a4 Kd7 c4 Kc6 f4 g5 a6 b5 h6 b4 f6 b3 c5 g4 a7 g3 a5 b2 f7 e4 h7 g2 h5 e3+ Kd3 Kb5 f5 e2 f6 e1N+ Kd2+ d3 h6 d4 Ne2 g1R Bh3 Qd6 Ra3 Rg2 Be6 Nc6 Rh3 Ne5 Ba2 Ne7 Rb3+ Ka4 Na3 b1B Nb5 N7g6 Ba3 Qe6 Bb4 Bd6 f8Q Bb8 Nd6 Nf7 Qg7 Rd8 h8B Bb7 h7 Bd5 Kc1 d2+ Kb2 d3 Kc3 Bc4 Nf4 Rd7 Qc2 d1Q Nh5 d2 Rd3 Qdg4 Rd5 Nfe5 f7 Qe4 f8R Nf7 Qd1 Q4g4 Rd4 Qh4 Rf4 Be4 Re8 Qhg4 Re7 Bcd5 Qc1 Rd8 Rd7 d1N+ Kd4 Qe2 Qd2 Ne3 Kc3 N3c2 Qf8 Nf3 Be5 Nfe1 h8R Q2g4 Rh6 Ngh8 Qg7 Qe2 Rf3 Qb5 Bh2 Qa6 Rhf6 Qb5 R6f4 Qc4+ Kb2 Bh7 Rg3 Bg8 Rh3 Be4 Rc7 Bg6 Nb7 Rd6 Rd7 Rd4 Nd6 Qce2 Kc3 Be4 Qe5 Qf1 Qg7 Qfc4+
br4Nb/P2r1q2/2q1P2N/1QR1q3/B2B1Q2/3nP3/bKNRn3/rQ1q2kN w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Ke7 Kd2 g5 Kc2 b5 a4 c5 h4 f5 d6+ Ke6 a5 Kd5 d7 Ke4 e6 g4 e3 c4 a6 f4 a7 f3 d5 b3+ Kb2 b4 d6 g3 h6 f2 h5 g2 h7 Qc7 d8N Ne7 d7 Ng6 h6 Na6 Nf7 Nf4 d8Q Ne2 Q8d6 Bg7+ Ne5 Bb7 Qc5 Rhb8 Rh2 Bh8 Nh3 g1Q Qb5 Nc5 Na3 Qd6 Nc2 c3+ Kb1 b2 Ra5 Rd8 Ng4 Kf3 Nf6 Nd3 Ng8 Rab8 Bg2+ Kg3 Bc6 f1Q Nf2 Rd7 Qe1 Qd5 Nh1+ Kf3 Qh4 Ba8 Qhc4 Qg3 Ka2 b1R Bb2 b3+ Ka3 Nec1 Rd2 Ne2 Qf4+ Kg2 Ba1 Kg1 Bb2 Bd4 h8Q Qff2 Qh7 Bh8 Ba1 b2 Qg6 Rc1 h7 b1B Qge4 Ba2 Qeb4 Qh5 Qb1 Qe1 Bb2 Qf7 Ba1 Bf6 h8N Qd1 Bb2 Qg5 Ba1 Qe5 Bb2 Qg6 Nf7 Bh8 Nfh6 Qe8 Qb3 Qf7 Rc5 Ng3 Ba4 Ne2 Nb4 c2 Bd4 Qf1 Qd5 Rd1 Qdb3 c1Q+ Q3b2 Qc4 Nc2 Qcd5 Qb5 Qc6 Q1b2 Ra1 Qb1 Ndc1 Kb2 Qe1 Qb6 Qd1 Qb5 Nd3+
QrK1nR1B/P1B5/2PNP1B1/3R3q/R1nRQ1N1/1bn1bb1q/q3q3/r4k2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 c4 b5 a4 f5 h4 Kg3 e4 Kf2 h6 g5 a5 f4 a6 f3 e6 d6 h7 g4 h5 g3 c6 g2 e5 b3 h6 b2 c5 b4 e7 b3 e8R Qe7 c7 Nc6 Nd2 b1Q Rh5 b2 Qc2 Bb7 c8Q Qa2+ Nc4+ Ke1 Bg5+ b1N Rd8 f2 Nh3 g1Q Bf4 Qgg5 Bd3 f1Q Nf2 Qh3 Bg6 Kf1 Qe4 Na5+ Qc6 Rb8 a7 Qgf5 Rh4 Qh5 Ng4 Qe8 Bh2 Be7 Ke6 d5 Qc8 d4 Rd5 d3 Nd6 Nf6 Qd8 Rf8 h8B d2 h7 d1B Bg3 Bf3 c6 Nc4 Qc8 Ba6 Qb7 Bb5 Qa8 Ba4 Bf4 Bb3 Bg3 Qag2 Ra4 Nc3 Bf4 Rf7 Bh2 Qg8 Bg3 Ne8 Kd7 Qe2 e6 Rf8 Bf4 Bg5 Bh2 Be3 Bf4 Rb5 Kc8 Ra5 Ne5 Rb5 Kd7 Qg7+ Ndf7 Bg2 Kc8 Kg1 Qf5 Qf6 Bg7 Qe7 h8R Qa3 Rg8 Qeb2 Bh8 Qbe2 Bg3 Qaa2 Rhd4 Be4 Ng4 Rb4 Bc7 Rb8+ Kd7 Bh1 Nd6 Kg2 Qd3 Rf1 Rf8 Ra1 Qe4+ Kg1 Nb5 Bf3 Nd6 Rb7 Kd8 Kf1 Kc8 Rb8+
R7/B1bk3K/nB2RrqQ/5B1r/2bbb3/1QP5/PP2bn1Q/bN2NQ1r w - - 0 1 illegal: Other
1Q3q2/1r2R1b1/Kb1QQ1R1/r3PrP1/2rB2B1/2QP1nNr/1r1N2k1/1B3b1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 f5 b4 c5 g4 h5 b6 a5 Kb5 h4 d3 c4 b7 a4 g6 a3 g5 f3 d6 f4 d7 c3 g7 f2 Qg4 f3 Be3 a2 Qh3 c2 Ba7 Kf4 e5 c1R Bd4 Nc6 b8Q Nge7 g8B Rh7 Bc3 Nd4+ Kc4 Bg7 b5 Ra5 b6 Qf8 d8Q Nef5 b7 Ng3 Bg2 f1R Qe6 f2 Bh3 Nf3 Rh2 Nh1 Qbc7 Kg3 Bg4 h3 b8Q Rc2 Qcc6 Rb2 Qdd6 Rc1 Nd2 f1R Rb1 a1B Ne2+ Kh4 Rf2 h2 Ng3 Bd7 Qa4 Bc6 Qc2 Be4 Bd4 Bf5 Bh5 Bh3 Qc3 Rcc2 Bg4 Bg2 Re2 Rf2 Re4 Bf1 Rf4 Rc1 Rf7 Rcc2 Ne2 Rc1 Re7 Rcc2 Nc1 Kg3 Ne2+ Kg2 Ng3 Rh3 Bf7 Rb7 Rb6 Rca2 Be8 Rb2 Ba4 Rh4 Bh5 Rf4 Bc2 Rf5 Bb1 Re2 Bc5 Re3 Bg4 Re4+ Kd5 Rc4 Kc6 Nf2 Ra6 h1R Rb6 Rh3 Ra6 Rcb4 Bd4 Nh1 Rb6 Rba4 Ra6 R7b5 Rb6 Rc4+ Kb7 Be2 Be3 Rd4 Qdb4 Nh4 Qec8 Rba2 Qc2 Rc4 Qd7 Bd4 Qcc3 Bc5 Bd4 Bf1 Qba3 Rb3 Qab4 Rc2 Rg6 Nf3 Qe6 Rcb2 Qbb6 Rab5 Ka6 Ra3+ Qba5 Rb7 Qb4 Bb6 Q4d6 Rab3 Qaa3 Rb5 Qc3 Ra5+
n2R2Q1/3nB3/2QR1R1r/3q1K2/1bbNPb1b/2r1N1PB/RnP2n1k/b3B3 w - - 0 1 illegal: No proof kernel
B3R3/R1bBPNb1/2b1KQ2/1q1nbnPn/rPk5/6rn/5BBN/4Q1bR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Ke7 Ke3 Ke6 Ke4 c5 d4 h5 g4 f5+ Kf4 Kd5 b4 a5 g6 c3 e3 a4 e6 c2 e7 c4 e8B a3 g5 c3 b6 a2 b7 h4 g7 h3 Qd3 h2 Bh5 Nf6 Bg4 Qb6 Qe2 Rh3 Nf3 Qb5 Na3 Ra4 Bb2 c1B Nc4 c2 Qe1 Nc6 b8R Bb7 Re8 Ne7 Nd6 Rg3 Bg2 Bc6 Nf7 Kc4 g8B Nfd5+ Ke5 f4 e4 Nf5 Ke6 Be3 e5 Bg7 Bc1 Bf2 Be3 Bg1 Bf2 c1B Bh7 Nf6 d5 Nh5 d6 Bd2 Rb1 a1B d7 Be3 d8Q Bb6 Qf6 Bc7 Rd1 Bc3 Rdd8 Bd4 Ra8 Bc3 Nh4 f3 Ra7 Bb2 Bd4 f2 Nf3 f1N Bf2 N1e3 B4h3 Nh4 Be4 Bd4 Ke7 Bb2 Bd7 Bc3 e6 B3e5 Nd8 Nd5+ Kf7 Rg4 e7 Rg3 Ke6 Nf5 Nf7 Nde3 Qh6 Bb7 Bec6 Nd5 Qf6 Ba8 Bb6 Bgd4 Rg1 h1N Nh2 Nf2 Rh1 Nh3 Bc5 Bb7 Bb6 Bg1 Bf2 Ba6 Ba8 Bb7 Qh6 Bc6 Qg6 Ra2 Qf6 Ra4
6BB/b2PB1bK/bq1N2R1/1PN3q1/Q1b1RP2/1b2Q2N/1b3r1n/n1B2kr1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 g4 e5 d6 a5 f3 h5 d3 h3 b3 h2 d7 a4 g5 a3 f6 h4 Kf5 Kd4 Kg6 c5 b6 h3 b7 c4 b4 c3 f7 e4 b5 a2 Nd2 Ke3 d4 Kf2 d5 e3 d6 e2 Nc4 e1B Bf4 c2 Bg2 c1Q Bf1 Nc6 b8N Nh6 Na6 Nd4 Qa4 Qb6 d8B Nb3 Bf6 Bg7 f8B Rg8 d7 Ng4 Nc5 Ba6 Be7 Raf8 Kh7 Ba5 Rb1 a1B g6 Bb2 Nd6 Na1 Bc4 Bb4 Bh6 Qg5 Re1 B4c3 Re4 Bd4 Ne2 Be3 Rg1 h1B Nf4 h2 Bf7 Bg2 Nh3+ Ke2 Bd4 h1B Bb3 Nh2 Bdf6 Bh8 g7 Bf1 Be6 Ke1 Rg3 Bc4 Bd4 Qf5+ Rg6 Kf1 Bdf6 Bed4 Bc1 Qg5 Bd5 Rc8 f4 Bf3 Re5 Bd1 Re4 Bdb3 Be6 Rgd8 g8Q Bg7 Qf7 Rg8 Qe8 Bh8 Nd3 Qe5 Re3 Qb8 Rg4 Bd5 Qd8 Ba7 Re4 Rc2 Qb6 Rf2 Qe3 Bdc4 Nc5 Qb6 Bf7 Rg5 Bg8 Qd5 Rh4 Qe5 Rh6 Rg1 Rg6 Qg5 Be5 Bg7 B5f6 Bf8 Bh8 Bfg7
2qbQ3/1P2nNrR/3Q4/1nR1r1Rn/n3kPB1/1K2P3/N4nR1/BNq2n1b w - - 0 1 illegal: No proof kernel
b3nr2/1bn3R1/5b1N/KQRB1NPP/3qr2b/1BQ3R1/1B1nP3/R1r1k2r w - - 0 1 illegal: No proof kernel
3Q2bQ/Q1B2bnP/bn4n1/Nkqr3B/6rP/rP5K/NQ1bR3/R2n2B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 f5 e4 a5 h4 c5 d4 g5 d6 f3+ Kh3 g4+ Kg3 f4+ Kh2 a4 b6 Kc6 b7 f2 d7 a3 e5 c4 d5+ Kb5 b3 f3 d6 g3+ Kh3 g2 h6 a2 e6 Qg5 d8Q Nf6 d7 Nh5 e7 Qc5 e8Q Ng7 h7 Ra3 Bd3 f1B Qh5 f2 Bg6 c3 Bc2 Bc4 Bg5 f1B Bf4 Bg8 Nf3 Bfc4 Qhe8 g1R Rh2 Bcf7 Qd4 Rg4 Bd1 c2 Be3 c1N Nfd2 Nd3 Re2 Ne5 Qb2 Ng6 Bg1 Bd6 Qee7 Bf4 Nc4 Bh6 Qde8 Bd2 d8Q+ Nd7 b8B Ba6 Q8f8 Nb6 Na5 Be6 Qa7 Bgf7 Qdd6 Bc4 Qc8 Rd8 Bc7 Bg8 Qcb8 Bcf7 Qde5 Rd6 Qd8 Rd5 Nc3+ Kb4 Rc1 a1N Na2+ Kb5 Qef6 Nc2 Ra1 Ne3 Qfe5 Ne8 Qh8 Ng7 Rh2 Rf4 Bh5 Rg4 Re2 Nd1
8/3Pr1rk/r2b1K1n/2b1RbQ1/RN1Q2Q1/q1PQ2Bn/1P5N/BB2b1nr w - - 0 1 illegal: Other
1r1BK3/P1q1RQ2/Q1NNb3/1n1nr1B1/PnB4B/P2b4/1R3b2/Nrnr2k1 w - - 0 1 illegal: No proof kernel
4k3/1b3qnB/1Rq3Q1/n2Q1B2/P2b2NN/B1Qbr2B/3qPP2/R1bq1r1K w - - 0 1 illegal: No possible last move, all moves rejected
1q3n2/Bb3Q1B/rbK2Q2/2P3Nn/1qR1PNq1/3P3Q/kq1B1Br1/2R1r2r w - - 0 1 illegal: No proof kernel
1rR2B2/Rq1BB3/4RrPq/1QN5/qNK2r2/1PR3b1/2nn1qQP/rk5b w - - 0 1 illegal: No proof kernel
5BKn/1qrQQNn1/4P1PR/1N3Nq1/1b3q1B/rPB2b2/2B2nkn/5R1q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 a5 g4 h5 d4 c5 b3 f5+ Kf3 h4 e4 a4 g6 a3 g5 c4 g7 h3 g6 a2 b6 c3 b7 c2 Bc4 h2 Bd2 c1N Nh3 Na6 b8B+ Nc7 Bc3 Qg5 Na3 Bb7 Bd3 Nh6 g8N Nf7 Bc2 Rh7 Ne7 Nd3 Qd2 Bc6 Raf1 a1Q Qe2 Nh8 e5+ Kd7 e6+ Kd6 Qd1 Nf2 Ba7 Ne8 Bc5+ Kc7 Qd3 Ng7 Nb5+ Kb7 Bd6 Qa7 Ba3 Kb6 Qd2 Qb7 Qd1 Ne4 d6 Nf2+ d5 Ra4 d7 Ra8 Bab2 Kc5 d8B Ra3 Ba1 Ne4 d6 Nf2+ Ke2 Bg2 d7 Bf3+ Kd2 Qh6 Ng5 Qh5 Rhg1 h1Q Nf7 Qg5 Rg2 Ra4 Rh2 Ra3 Nc6 Kd5 Ncd4 Bb4 Rh6 Qgg1 Bh4 Qg3 Bb1 Qg5 Kc2 Ke4 d8Q Bg2 Qd2 f3 Qe7 f4 Nf5 Ng4 Ne5 f2 Nf7 f3 Qdd7 Kf4 Rc1 f1N Kd3 f2 Kd4 Kf3 Bc2 Nfh2 Rf1 Nf6 Ke5 Ne4 Rc1 f1Q Re1 Qfg1 Rf1+ Nf2 Bab2 Qf4+ Kf6 Kg4 Bc1 Kh3 Be3 Be4 Bc5 Kg2 Qee8 Ra6 Bf8 Ra3 Qee7 Bf3 Qd2 Kh3 Ng5+ Kg4 Qc7 Qgg3 Qdd6 Qgg2 Ke7 Nh5+ Ke8 Rd7 Qe7 Qgg1 Qc6 Rc7 Qcd7 Qgg2 Bfg7 Qgg1 Nf7 Kh3 Kf8 Qgg5 Kg8 Kg2 Bf8 Ng7
1BBrN2n/N3k1qQ/2Pqb3/BrNP1b2/K2Q1n2/nb2b2N/5P2/3nR1R1 w - - 0 1 illegal: No proof kernel
3r4/BBR4P/1bqRRn2/4PB1n/RNk1b1Q1/6Pn/qKn2Q1q/N4rq1 w - - 0 1 illegal: No possible last move
1KbBBbk1/1R1qbNP1/1RnqP3/1n5r/1NNQr3/P1q3b1/Q1Q1q1N1/8 w - - 0 1 illegal: No possible last move
1b2n1n1/1B1brRP1/2nPN3/R3Q3/N2N2N1/3q1qr1/Q3P2K/Bq1n1kqR w - - 0 1 illegal: No possible last move, all moves rejected
3Q3N/4Pq1N/4BRK1/3brPPQ/nnr1BB2/q3n1B1/1b1Nq3/kq3n1R w - - 0 1 illegal: No proof kernel
b2KR1r1/1PN1rn2/Rb2r2q/b2PNb2/Qq5k/2N5/1PN4B/3BrnRQ w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 h5 g4 a5 b6 e5+ Ke4 a4 f4 c4 d6 a3 Kd5 h3 d7 c3 Rh2 a2 Nf3 c2 Re2 e4 Ne5 h2 Nc3 Qe7 d8Q h1R Qe8 e3 Qa4 Na6 Kc6 h4 Bg2 h3 Bf3 Rh2 Qh1 Qb4 Rg2 e2 Rg1 e1B Bd1 Nc5 Kc7 Rd2 Kd8 Re2 Bd2 c1Q g5+ Kg7 g6 Kh6 f6 Kh5 g7 h2 f7 Ne4 f5 Ra6 f6 Bf5 Bh6 Nd2 Bf4 Nh6 g8R Bc5 f8N Kh4 f7 Nf1 Ne6 Qe3 Re8 Rg8 f8N Nf7+ Kc7 Ra7+ Kc8 Rd7 Nc7 Re7+ Nfe6 Qd2 Qd5 h1B Bh2 Qh6 Qda8 Nd6+ Kd8 Bb7 d5 Bcf2 Qb8 Ba8 b7 Bb6 Nd4 Bd2 Nc2 Re3 Rb1 a1R Qc8 Re1 Qcd7 Ra3 Ra1 Re6 Qh7 Re7 Ne2 Rag3 Nc3 R3g6 Qb3 Rge6 Ra6 Bde3 Qh8 Ba5 Qa4 Beb6 Qh7 Bh3 Qe4+ Bg4 Qf3 Bf5 Qh1 Nf7+
n1R3Br/2nk1N2/b1R3K1/5b1B/n2qq1P1/2bQ1P1B/3QP2p/B1rqN2R w - - 0 1 illegal: No possible last move, all moves rejected
1B5N/5Qn1/bkBKN2R/3bQ3/1pP1rqP1/n2NRnr1/2P2qqb/QN6 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d3 c4 dxc4 Ra6 Nd2 Ra7 Nb1 Ra8 Kd2 d5 Ke3 Kd7 Kf4 Kc6 Ke5 h5 g4 b5 a4 h4 f4 h3 a5 b3 a6 d4 g6 d3 g7 b2 a7 d2 f6 h2 f7 b4 f5 Qd6+ Ke4 e5 f6 Ba6 Ne2 Ne7 g8N Rh3 Ra4 Nd7 Nh6 Kb6 Ra3 Re8 a8Q Rg3 Re3 Nf5 Bg2 Ng7 Qe1 d1Q Nf4 Q1d2 Nd3 Re7 Bf3 Qg2 Qe8 Qb8 Kd5 e4 Bd2 Qf4 Qd1 Ne5 Kd6 Nh5 Qc1 Bg7 f8Q Bh8 f7 Ng7 Ree1 e3 Bc6 e2 Qd1 Qff1 Bf4 Nf3 Qg8 Re5 f8N Re4 Qe5 Qff2 Nf7 Qff1 Nd2 b1N Ne6 Na3 Qda1 Qff2 Nb1 Qe3 Ref1 e1Q Rfg1 Q1f2 Re1 Qc1 Re3 Qcd2 Rd1 h1B Rde1 Nh5 R1e2 Bf6 Nh8 Ng7 Qf7 Be7+ Kd7 Bd6 Re1 Qh3 Rd1 Bg2 Rh1 Bc7 Rh2 Bh1 Ke7 Qhg2 Rh6 Ne1 Nb2 Rh3 Rf3 Re3 Nd3 Qgg1 Qef6 Be5 Bg5 Bh2 Rg3 Bd5 Bf4 Re4 Bb8 Qgg2 Qfe5 Qdf4 Re3 Rg3 Kd6 Nf3
5qB1/2N1b3/3q1R2/k2nPR1P/1n1PNp1r/Kb1nrrQB/1q5R/1QB3R1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 e4 c5 b4 Kc7 d4 Kb6 Kd2 g5 Kc3 f5 Kb3 a5 e6 c4+ Ka4 g3 e7 c3 e8B c2 d6 g4 d7 g2 Ne2 g1Q Bh3 g3 Na3 g2 Bf7 Na6 Rh2 Nf6 Ng3 Qf1 Bg8 g1R h5 Rh1 e5 Be7 Qg4 Nd5 Ne4 Qf4 Kb3 a4+ Ka2 Qc7 d8R Qd6 Rf8 Be6 Qg3 Rh6 Rf7 Rf6 Rb1 Rf8 Kb2 Rg6 Rf6 Rg4 Ra1 Rh4 Rb1 Re1 Ra1 Kb7 b6 Re3 Nb5 a3+ Ka2 Kc6 b7 Kb6 Nc7 Qh6 b5 Ka5 b8Q Qh8 Nc3 Nab4+ Kb3 a2 b6 Rf7 b7 Qh6 Ka3 Qf8 Bb2 c1N Rb1 Ne2 Rg1 Nef4 Bc1 Nfd3 Ne4 a1Q+ Ra2 Qb1 Rh2 f4 Qc8 Rf3 b8R Rg7 Rf5 Re3 Rb6 Qc2 Qb7 Qe2 Qf2 Rgg3 Qe1 Rgf3 Qg3 Bd7 Qb8 Ba4 Qb7 Bb3 Rc6 Qc5 Rcf6 Qf2 Qc6 Qd6 Qc2 Qg2 Qb1 Qb2+
bB1RQ3/1R2r3/KN2NR2/2RP1Pnn/BqB3qp/b4PQ1/4n2q/5rrk w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d6 h3 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 b4 Kf4 g4 c5 f3 Kg3 d4 e5 b6 h5 Kb5 a5 d7 c4 g5 h2 b7 e4 g6 h4 d5 c3 g7 c2 Be3 c1N Bh6 a4 Nd2 e3 Qe2 a3 Nh3 a2 Nc4 Qg5 d8R Qg4 Ng5 Nf6 g8B Na6 b8R Nc5 Bf7 Rh7 Be8 Nh5 Kb6 Rd7 b5 Bb7 Bg7 Ne6 Be5+ Nef4 Rb1 a1R Rbc8 R8a4 Rc6 Ba8 Rf6 R4a2 Rb3 Ba3 Ka6 Rc7 Qe1+ Rf2 b6 e2 b7 Rd7 b8Q Rg7 Qb5 Re7 Ne6 Rb1 Bd4 Nh3 Ba7 Ng5 Qa4 Ra1 Rb7 Rb1 Nb6 Ra1 Qc3 e1Q Qcc6 Rg2 Qc7+ Kf2 Qcf4 Qb4 Bb8 Rb1 Bfb5 Ne2 Rc1 h1Q Rc5 Kg1 Qg3 Qh2 Bc4 Kh1 Qc6 Rf1 Qd7 Rg7 Qf7 Rgg1 Ba4 Rh7 Qe8 Re7
2bn2NB/1k2N2Q/Rr1BN2R/K1Pb4/P1r5/3P1pq1/B1r2bnn/3qQN2 w - - 0 1 illegal: No proof kernel
1Qn1B1Nk/N1b1R1R1/2rr3P/5qN1/pBn4n/1bP4r/P1q5/b2BQB1K w - - 0 1 legal: proof: g4 e5 f4 d5 fxe5 h5 Nf3 hxg4 Bg2 c5 Ng1 c4 Bf1 c3 bxc3 d4 Nf3 d3 cxd3 Be7 Ng1 Bf8 Kf2 b5 Kg2 a5 e4 g5 h4 f5 d4 Kf7 d5 Kg7 d4 f4 h5 a4 d6 g3 d5 g4 d7 b4 d6 b3 e6 b2 e5 Nc6 e7 Ra6 e8B Qg5 d8N Qf5 e6 Nge7 d7 Ne5 Be2 Rd6 Bf7 Nc4 Nd2 b1Q Ba3 Qbc2 Nh3 f3+ Kg1 g2 Ne4 Rc6 Qe1 f2+ Kh2 g1N Bd1 Rh6 Nhg5 Kh8 Bb4 g3+ Kg2 Bb7 Nf6 Nc8 e7 Nf3 Ng8 Rhd6 Rg1 f1R+ Kh1 Nh4 e8B Rf3 h6 Re3 Bfh5 Ba6 Bhe2 g2+ Kh2 Red3 Bf1 Rf3 Nb7 Be7 Na5 Bd8 Rb1 Bc7 d8Q Bb7 Rh1 Rh3+ Kg1 Ra6 Nc6 Rb6 Na7 Bd5 Rc1 Rbc6 Ra1 Na5 Rh2 Bb3 Rb1 Nc4 Rc1 Ne7 Qb8 Nc8 Ra1 Rg3 Rh3 Re3 Kh2 g1B+ Kh1 Bf2 Rh2 Rh3 Rb1 Bc5 Rb2 Qc1 Re2 Qcc2 Re7 Be3 Rg7 Bc1 Re7 Bb2 Rg7 Rhd3 Re2 Ba1 Ree7 Rh3+
1B1Nn3/1r4R1/6PP/1nbr3Q/4Rr1B/2bRnbKB/1kp1PN1Q/q4q1R w - - 0 1 illegal: No proof kernel
5N2/Q2n1b1Q/2Bq1P1r/K1Q1BR1P/1Prn2q1/3q1N2/p2bk3/QNr2bR1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 f4 d5 b4 e5 h4 a5 c5 g5 h6 d3 Kc3 d4+ Kb3 d2 Ka4 g4 h5 e4 h7 e3 c6 d3 c7 g3 b6 g2 b7 e2 Na3 e1R Nb1 Ne7 Qe2 d1B+ Kb5 d2 Nc3 a4 Ra2 a3 Qe4 Be6 c8Q Nec6 Nf3 g1Q Bb2 Nd7 b8Q Bf7 Qa7 Bh6 Nb1+ Nd4+ Ka6 Bg5 Qc5 Rc8 Bb5 Qg4 Rg1 Be2 Qd3 d1Q Bc6 Qe7 Ka5 Qd6 Ba1 Bf1 Rf2 a2 Bb2 Ke7 f6+ Ke6 Qdc3 Qd3 Qc2 Rhd8 h8Q Rc1 Qd1 Rg8 Qh7 Rg6 Bc3 Rh6 Qe1+ Ne2 Be5 Nd4 Qec3 Rc7 Qa1 Rc4 Qg8 Kf5 Qh7+ Bg6 f7 Rc1 Ba4 Ke4 f8N Ke3 f5 Bf7 f6 Rc4 Bc6 Rc8 Nh4 Rc1 Rf5 Ke2 Nf3 Bd2 Bf4 Re8 Bh2 Re4 Bg3 Nb5 Bh2 Rec4 Be5 Nd4
1nQb1K2/2B1Q3/B1b1P1N1/Q1q2P1P/qRq1k2b/B2Rr2r/N2B2np/2n5 w - - 0 1 illegal: No proof kernel
q1Q3B1/1qn1B2q/4P2p/2RbK3/1bNr1P1r/1QR2Q1n/N1QR1nP1/5bk1 w - - 0 1 illegal: No proof kernel
1qRq1Qr1/2r5/1P1pN2R/2b1NBQ1/kB1N4/PNPn1n2/1r6/bbK3Qn w - - 0 1 illegal: No proof kernel
4n3/1b1r1nKP/2R1B2R/RqN3Q1/B2q3Q/1qN2rbP/1kBBPpr1/b7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 c4 a5 b4 g4 h6 d5+ Kf4 f5 c5 g3 b6 a4 b7 a3 h7 d3 c6 d2 c7 a2 b5 g2 b6 d4 Nc3 d3 Nf3 g1R Bh3 Qd5 Qe1 d1Q Nd2 Nc6 b8Q Ra3 b7 Q1b3 Nde4 d2 Qh4 d1Q Bd2 Rg2 Qa7 Bg7 b8R Nd8 Qa5 Bb7 Rc8 Nf6 Bg4 Bf8 Kg5 Bd6 Kh6 Nf7+ Kg7 Rd8 Qb5 Rd7 Nc5+ Ke7 e6 f4 Qa5 f3 Qb5 Bg3 Bf5 Kd6 e7 Ke5 e8B f2 Bc2 Rd6 Bc6 Rd7 Qa5 Qd4 Ba4 Qbb4 h3 Qb5 Rg1 Qdb1 Rc1 Q5b3 Rb8 Qb5 c8B Q1b2 Ra8 Q2b3 Rab1 a1B Qd8 Qf4 Ra5 Kd4 Qe7 Kc4 Qe3 Qd4 Qeg5 Kb4 Rb2 Ra2 Rbb1 Ka3 Rb2 Qe6 Rb4 Qb3 Rc4 Kb2 Rb4 Qbd3 Rb6 Qdb5 Rc6 Ra3 Rd1 Rd8 Be6 Rd7 Bf4 Qdc4 Rdd6 Qd4 Bd2 Q3b4 Nb1 Rf3 Nc3 Qb3 Bc4 Ne4+ Rf6 Qd6 Rh6 Nf6 Bd5 Qe5 Bc4 Qd4 Be6 Ne8+
q1r1n2N/1Rn2B1P/3Q1b1Q/P1NP1NR1/4bK2/kpr1Br2/2Bq1n2/5N1q w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 h4 f5 e4 b5 a4 c5 d4 g4 e6+ Kd6 h6 b3 a5 c4 e7 b4 e8B c3 h5 c2 h7 b2 h6 b3 Be3 c1Q Ne2 Bg7 Nd2 b1Q Kf4 g3 Bf7 g2 Ng3 g1N Bd3 Bb7 Bc2 Na6 Ndf1 Nc7 Ra2 Rc8 e5+ Kd7 d6 Kc6 e6 Kb5 e7 Kb4 e8N Nf6 d7 Be4 d5 Qd2 Nd6 Nfe8 Qc1 Bf6 Nb7 Qa1 Rb2 Ka3 Nc5 Rg8 h8N Qb1 Nh5 Rg3 Ng7 Rh3 h7 Rg3 Rh4 Qa1 Qe1 Qad1 Qf2 Qh5 Rg4 Qh1 Rg5 Bd4 Bb1 Qg2 Na4 Qh1 Nh2 Ra8 Rc2 Qc8 d8Q Na6 Rc7 Bb2 Nc5 Bf6 Rb7 Nac7 Qd6 Qb8 Bd3 Qa7 Bb1 Rc8 Bc2 Qa8 Qg2 Bd8 Qf3 Nh3+ Ke5 f4 Qh5 f3 Bf4 f2 Qhh6 f1R Nf5 Rc3 Be3 Rf3 Nf1 Be7 Qdf6 Nf2 Qd6 Rg3 Kf4 Bf6 Qdf8 Rh3 Qd6 Rf3#
1R1N3r/BBR3P1/p2BP2k/nRB1bq1q/3P2Q1/3K1r1n/6qn/1Qbb2N1 w - - 0 1 illegal: No possible last move
8/4BP2/4Q2n/kb2P3/BRQKNR1b/R2qNNq1/n2pP1qn/N3rb1r w - - 0 1 illegal: No proof kernel
KR2N3/1N1nNP2/1b2b3/2p2rbn/Bn1Q2r1/1P1r1B2/1P1q1R1B/k3Bq1Q w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 g5 h3 b4 h4 b3 axb3 gxh4 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 c5 f4 h5 f6 a5 f7 e5 f5 h3 g5 h2 f6 h4 d6 a4 Kd5 a3 g6 h3 d7 a2 g7 e4 Na3 e3 Nb5 e2 Nd6 e1B Bb5 Rh7 Ba4 Be7 f8B Rh4 Ne2 Rg4 Rf1 h1R Nc3 h2 Rf2 Rf1 Ne8 h1Q+ Qf3 Qa5 d8Q Nd7 Kc6 Rb8 f7 Ngf6 g8B Nh5 d5 Bg5 Bd2 Rb7 Rd1 a1N d6 Nc2 Bh7 Qg1 Qh1 Rb8 Rg2 Rf5 Rf2 Qf1 Qf6 Qd8 Qd4+ Ka5 Nd5+ Ka6 Bf4 Ba5 Ne7 Bb6 Bd2 Rb7 Be1 Ka7 Rd3 Nb4+ Kb5 Rc7 Bg7 Rc6 Be5 Kb7 Bf4 Ndf6 Bg3 Be6 Bh2 Nd7 Bg6 Rf3 Be4 Rf5 Nd5 Ne5 d7 Rd6 Ne7+ Rd5 Nf6 Kc7 Bf3 Kd6 Qc4 Rdd4 Rdd2 Rd3 Rd1 Qa8 d8N Qd5 Ra1 Qd4 Ra3 Qf4 Qc3 Nd7 Qd4+ Bd5 Nb7+ Ke6 Qc4 Ke5 Ne8 Be6 Ra2 Rg3 Ra1 Qd2 Qc3+ Kf4 Qg7 Ke3 Rd1 Na2 Ka6 Rg4 Qc3 Bc7 Ka7 Nb4 Ka8 Bb6 Qc2 Rc3 Qc1 Kd3 Qa1 Kc2 Qa3 Na6 Qb4 Rd3 Qd4 Nb4 Be2 Qc1 Bf3+ Kb1 Rdd2 Ka1 Rde2 Qg1 Re5 Qd2 Rd5 Ndf6 Rd8 Nd7 Rb8 Qf1
QqBn1nR1/B2NBp2/qP2r1N1/Qr1b1b1k/P6n/1NrBb1P1/4K2R/8 w - - 0 1 illegal: No proof kernel
1kbN1r2/R3Pq2/1rpnPQ2/nb1BBn2/PN1Q3r/4K1b1/6N1/B2NR2q w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 e4 g5 d4 b5 h4 f5 e6+ Kd6 e7 f4 e5+ Kd7 h6 f3 h5 g4 d6 g3+ Ke3 b3 h7 g2 h6 b2 d5 b4 Nh3 b3 Bc4 f2 Nc3 g1Q Qd4 b1R Nd1 b2 Nf4 Qe8 Ng2 Nc6 a3 Qh2 Re1 f1B Bd2 Qf7 Bc3 Na5 Ba2 Bca6 e6+ Kc8 d7+ Kb8 d8N Bg7 d6 Bfb5 d7 Qh1 Bc4 Bc8 Bd5 Be5 Ra2 Bg3 Nc6+ Kb7 Nb4+ c6 d8N+ Kb8 a4 Rc1 Ra3 b1N Rb3 Nd2 Ba1 Ne4 Rb1 Nd6 Rb2 Nf6 Rb3 Rf8 h8Q Rc4 h7 Nfe8 Qhf6 Ng7 h8B Ra6 Qb6+ Nab7 Nc2 Qh7 Qg6 Qh1 Rb4 Rh4 Qd4 Be2 Qf5 Nh5 Be5 Ng7 Qf6 Bc4 Rb5 Rb6 Ra5 Bb5 Ra7 Na5 Nb4 Nf5+
4NrKB/4P1Rp/2P1k2b/Nnb3Rb/Bn1n1r2/BN2r1Q1/6Pq/Qq2N3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 d5 e4 a5 b4 f5 c4 a4 g6 a3 c5 a2 b6 f4 b7 f3 g7 f2 b5 Be6 b6 Bf7 e6 Bh5 e5 Qc7 Nf3 Qd6 Ne1 Qd7 Ba3 Nc6 b8B Qc8 b7 Qc7 Nd2 Ra7 Nb3 Nh6 g8Q Nf5 Qg3 Bh6 Rh4 Rc8 Rg4 Rf8 Rg5 Qd6 Rc1 a1B Rc3 Bb2 Qa1 Ra5 Be2 f1R Bd1 Rf4 Ba7 Bc1 b8N Be3 Rc4 Ra4 Rb4 Qc7 Rb7 Rc4 Bb6 Rc2 Ba5 Re2 Bc3 Bg1 Na5 Be3 Ba4 Bf2 Nd7 Re3+ Kd2 Nb4 c6 d3 Nc5 Bg1 Ncb3 Nd4 Bcb2 Bf2 Kc3 d2+ Nd3 Re2 Ne1 d1Q Ra7 Qb1 Rb7 Ke8 e7 Kf7 e8N Ke6 Ra7 Nf5 Rb7 d4+ Kc4 d3+ Bd4 Qb8 Rbg7 d2 Kc5 d1N Kc4 Nc3 Kc5 Rf7 Kc4 Ke7 e6 Re3 Kc5 Nb5 Be5 Nfd4 Kc4 Nc7 Kc5 Kd8 Kd6 Rf8 Bf6+ Kc8 Ke7 Ncb5 Rg8 Qe5 Bh8 Bg1 R8g7 Qb8 Nd6+ Kc7 Ne8+ Kb6 Qb2 Rfe4 Nc2 Nf3 Ne1 Rd3 Qa2 Bc5+ Qd6 Rde3 Qa1 Nfd4 Kd7 Rg4 e7 Rh4 Qh2 Qe5 Qh3 Qh2 Qg3 Rhf4 Nf6 Rf7 Ke8 Kc7 Rg8 Rg7+ Kf8 Rg6+ Rg7 Kd6 Kg8 Ke6 Ne8 Rgf6 Qf3 R6f5 Qg3 Rf8+
r4QRR/4PP2/N3bPR1/1q2RqNB/3Qn1n1/2r2pbb/1Bq5/r2N1k1K w - - 0 1 illegal: No proof kernel
1RN1QK1N/4p1B1/1q6/b1Pb1nP1/Qr6/BN2RB2/qnNP1k2/br2n2r w - - 0 1 illegal: No proof kernel
nq1b2n1/1r1PN2B/bb1N2QP/NRn2N2/R7/K4PQ1/BB1k2p1/4r1qq w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 a4 Kd6 d4 g5 Kd2 c5 Kc2 b5 Kb2 e5 f3 e4 f6 c4 f7 e3 a5 e2 a6 e1B a7 g4 h6 g3 h7 g2 h5 b3 h6 c3+ Ka3 c2 Nd2 b2 Ne2 b1Q Nc4+ Ke7 d6+ Ke6 d5+ Kf5 Na5 Qh4 Bb2 c1N Ng3+ Kf4 Nf5 Ba6 Bd3 Nd7 Qc2 Rb8 a8B Be7 f8Q Bf2 Qg7 Bb6 Bc4 Nd3 Ba2 Qhe1 Rh5 Qh1 Qc7 Bd8 Qg6 N3c5 Bb7 Ne5 d7 Qbg1 Bc6 Rb7 d6 Ba7 Be4 Nc4+ Kb4 Nb6 Ka3 Na8 Qb8 Bf6 d8N Bb6 Ndc6 Bfd8 d7+ Bdc7 Ng3 Ke3 Nf5+ Kd2 Nce7 Bd8 Beb1 Ne4 Qbg3 b4+ Ka4 b3 Ka3 Nc5 Be4 Nf6 Beb1 Rf8 h8N Ng8 Nf7 Re8 N7d6 Bf1 Nd5 Re1 Nde7 Ba6 Rh4 Qhh2 Rb4 Qgh1 Rb5 Q2g1 Bf6 b2 Bc2 b1Q Bb2 Ke2 Bab3 Na4 Qh5 Qf2 Rc5 Rd1 Ng7 Bdc7 Bh7 Rb8 Bd4 Qfg1 Qhg6 Ba7 Ngf5 Bd8 Bd5 Qb6 Ka2 Re1 Bb2 Kd2 Rb5 Qc7 Kb3 Rb7 Kb4 Nc5 Ra4 Qc8 Ba2 Qb8 Ka3 Bab6
1N1B2Qn/3P1NP1/B4P2/BNQ4r/4k2b/R1Kp1rn1/1r1q2n1/b1Bq1R1b w - - 0 1 illegal: No proof kernel
N1bN2Q1/r1P1nPR1/3P4/1b1NK1B1/2q2p1r/r3q1Q1/1b2R1nB/3Nqk1B w - - 0 1 illegal: No possible last move
1n1K4/2p1PB1b/1n3q1R/k5BN/1R1qbrRq/B1P1n3/2N1PQ2/2Q1R1rb w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Be7 h4 fxg4 Ra6 g3 Ra5 g4 Ra1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 h5 Ke3 a5 Kd4 d5 Kc5 Kd7 b4 a4 f4 d4 f5 h4 e6+ Ke7 g6 g2 b6 h3 g7 g3 b7 a3 b5 d3 c3 d2 b6 a2 Na3 h2 Nc2 Rh4 Nh3 Nf6 g8R Nd5 Rg4 g1Q+ Kb5 Kd6 f6 g2 f7 Qg5 Nf4 Qf6 Nh5 Qgf2 e7 g1Q f8B Ra6 Bh6 Bf5 Bh3 Be4 Bg5 Bh7 Qe1 d1B Ba3+ Kd7 Rc1 a1N Qf1 Q2d4 Qf2 Qg3 Re1 h1B Rb1 Ra4 Rb4 Kd6 Bg2 Ra8 Be4 Ra4 Bg6 Rh2 Bf7 Qh4 Bb2 Rg2 Ba3 Nc6 b8Q Rg1 b7 Nb6 Qg8 Nb8 Qg6 Kd7 Qgf5+ Kd6 Q5f4+ Kd7 Qc1 Kd6 Ne3 Bb3 Nc2 Bbd5 Bh6 Bde4 Bg5 Na6 b8R Kd7 Rg8 Nb8 Rg6 Kc8 Rh6 Kb7 Ne3 Nc2 Rb3 Nb4 Nc2 N4d5 Rb1 Qd3+ Kc5 Ka6 Rb4 Ka5 Be6 Na6+ Kc6 Nb8+ Kb7 Qdd4 Bf7 Nc4 Kc8 Ncb6+ Kd8 Ne3+ Ke8 Qd3 Rb3 Beg2 Rb2 Rf4 Rb4 Qc4 Kd8 Bge4 Qf3 Qc5 Qf2 Qcd4+
1rrR1nB1/KPN5/1b1Br3/PQ2pn1Q/bN2kq2/1P5q/b4QR1/n2N2N1 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1qQ3/1PbnRr2/1nBP1BP1/p2b2N1/3qrN2/R2n1Nq1/3rR3/NK1k4 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 Kd2 a5 Kc2 c5 g5 h3 f6 c4 b6 h4 g6 h2 f5 e4 f7 h3 b5 c3 b7 e3 f6 e2 b6 e1Q Bg2 Be6 Na3 Bh6 f8N Qd2+ Kb1 Nd7 f7 Bf4 Nh7 Ra7 f8R Ngf6 Rf7 Re8 b8Q+ Rc7 b7 Nb6 Qh5 Nfd7 Bb2 Qe1+ Qd1 Qg3 Re7 Bg8 Re2 Re4 Qe1 Be6 Ng5 c2+ Ka2 c1R N1f3 Rc2 Kb1 Rd2 Nc2 Be5 Rf1 h1Q Ra3 h2 Na1 Qg1 Rff2 h1N Bc3 Ke7 d6+ Kf6 d5 Kf5 Rf1 Bf4 Bf6 Kg4 Rff2 Bf7 Ree3 Bg8 Rfe2 Nf2 Bh1 Nd3 Bg2 Re8 Re7 Qd4 Bh1 Rf8 Bg2 Rf7 Bh1 Rc4 Bg2 Nf8 d7 Bc7 d6 Qd5 Qc1 Re4 Qe1 Qd4 Bh1 Rg7 Bg2 Bd5 Bh1 Rf7 Bg2 Qe8 d8N Nfd7 Nde6 Qf8 Qh1 Qd8 Qh8 Qh3 Qe8 Kg3 Re3 Kf2 Nf4 Qg3 Bf1 Ne1 Bb5 Nd3 Bc6 Kf1 Ne5 Kf2 Re2+ Kf1 Rg2 Ke1 Nef3+ Kd1 Rf2 Rf8 Re2 Rf7
b4N1B/rp5B/Q1R2n2/2R1P2Q/nKQ3bP/R2P1n2/2q2krR/1qb1N1r1 w - - 0 1 illegal: Other
3Q4/P2qq1n1/1K2qB2/3rnB2/2br3n/pN1Pr1P1/QB3B1R/1NR1bkN1 w - - 0 1 illegal: No proof kernel
5q2/Pn2qn2/QK1rkbBB/Nb5P/p6P/1bQ2Q2/R1q3N1/3RrRrR w - - 0 1 illegal: No proof kernel
1N2r2R/rrN3Nb/1n2B1RK/bq2pbr1/1Pn1BB2/BQ3Q2/P5P1/5rk1 w - - 0 1 illegal: No proof kernel
1QR1nBB1/3nqK1b/kN1r2R1/1pP5/4R3/1r1r1P1P/N1rrRQ1n/2b2N2 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 g5 Kd3 e5 Kc4 b5+ Kd5 b3 a4 g4 c4 b2 c6 d6 c5 e4 h3 g3 f6 e3 c7 Kd7 h6 g2 f7 e2 h7 e1N a5 Qe8 a6 Qe7 a7 Bh6 f8Q Nf3 Qd2 Nh2 Nc3 b1R f3 Rb3 Nge2 g1R Ra4 Rg6 Re4 Re6 Rg1 Nf6+ Kd4 Kc6 Ng3 Kb7 Bc4 d5 Qf2 Rd6 Na2 Bd7 c8R Bf5 Nf1 Ne8 Rg6 Nd7 Re2 Rg8 h8R Ka6 Bb2 Bf4 Rh4 Bc1 Rhe4 Rb8 a8N Rg7 Rh6 Rg2 Nb6 Bh7 Rg6 Ra8 Rc6 Rd8 Rc8 Re6 Qf4 Rf6 Qb8 Rc6 Bc3 Rd6 Kd3 d4 Bg8 Rb2 Bd2 Rb4 Bh6 Rb1 Ree6 Rb3+ Ke4 d3 Kf5 d2 Bf8 d1R R6e4 R6d3 Bf7 R1d2 Bg8 Qh4 Ke6 Rc2 Rh6 Rg6+ Kf7 Rgd6 Rf6 Rdd2 Rg6 R6d3 Ke6 Qe7+ Kf5 Ndf6 Kg5 R8d6 Kf5 Qg7 Kg5 Nd7 Kf5 R6d5+ Ke6 Qe5+ Kf7 Rd6 Rd4 Qg5 Rde4 Qe7+
3nqBBb/5Nn1/8/PR2pP2/1QQ1r1k1/RP1B2n1/NB1nn3/1rrbK1R1 w - - 0 1 illegal: No proof kernel
BbN3b1/3QrBB1/k1b1qPR1/p1K2Rb1/P3PQnn/1N4nr/N6b/1B6 w - - 0 1 legal: proof: g4 f5 b4 c5 bxc5 e5 d3 h5 e3 e4 dxe4 f4 exf4 hxg4 Ke2 a5 Ke3 g5 Kd4 b5 a4 d5 h4 Kd7 c4 Kc6 h5 Kb7 c6+ Ka6 h6 g3 c7 g2 f5 g4 f4 g3 f6 b4 h7 b3 f7 b2 f5 Bb4 f8Q Nh6 Bd3 Nd7 Rh5 Bd2 Nc3 b1N Na2 Ra7 Nf3 Nf6 Kc5 g1B+ Nd4 g2 Bb2 Nc3 Bb1 Bh2 Nb3 Bb7 c8B d4 Be6 g1B Bf7 Qd7 Qb8 Qe8 Qf4 Qe6 Rg5 Ne2 Rg6 d3+ Bd4 Re8 h8N Ng3 Qdg4 Bf2 Qh3 Bfe1 Be5 Nfg4 Bg7 Re7 f6 Ne5 Qhf5 Nf3 Qd5 Bc1 Qd7 d2 Be8 d1B Nf7 Qg4 Nd6 Nh4 Nc8 Bc6 Bf7 Rc7 Kd4 Qf5 c5 Ng4 Kc4 Qe6+ Kd4 Bb5 c6 Ra7 c7 Bc6 Kc5 Rb7 Qf5 Bg5 Qf4 Be2 Bc2 Bd2 Rf1 Bc4 Bb1 Bc1 Rd1 Bb2 Rd5 Ra7 Rf5 Be5 Nb6 Rb7 c8B Bb8 Bc2 Ka7 Bb1 Rc7 Bb7 B4d5 Ba8 Ka6 Qf2 Rc8 Qe3 Rh8 Qf4 Nf3 Rh6 Qe5 Rg6 Rh3 Be8 Nh4 Nc8 Bg8+ Qd5 Bb5 Bf7 Qe6 Qd7 Bc6
1B1k1Brr/1B1b4/3P4/1pPQbqrb/1nNRQ1r1/7N/3P1R1n/2QBKr2 w - - 0 1 illegal: No possible last move, all moves rejected
5r1N/5QR1/bb1P2P1/2BKrN2/3R1BqP/nkr1Q3/2b1p1b1/1BbBn1Q1 w - - 0 1 illegal: No proof kernel
1q1bQ1b1/1b1r3k/1P1PB1br/B5R1/1p3Q2/2N1KRb1/Q3PRn1/Nn3R1r w - - 0 1 illegal: No proof kernel
3bB1K1/4QnrQ/P2n2r1/1p2Pn1b/1RR3R1/r2r3k/N1P2B1N/R2Qr2q w - - 0 1 illegal: No possible last move
3r1Q1R/2k1r2P/4rr1B/6Bq/QrN3R1/bN2PBnR/bPKnp3/4n2R w - - 0 1 illegal: No proof kernel
4K1r1/6P1/B2rb2P/k2N1BnB/1Rn1pBQ1/n5n1/b1RQP1rq/1N4Nn w - - 0 1 illegal: No possible last move, all moves rejected
n1RK1r2/r3r1pQ/2QNrb2/1b4kN/4rnPN/1P2P3/Bq4bQ/B3R2Q w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 h4 a5 d4 c4 g4 f3 e3 a4 h5 f2 b6 c3 d6 c2 Kd5 a3 b7 a2 h6 Ra4 d7 Bc5 Bc4 f1R Ne2 Rb4 Ng3 Be7 Nd2 Kg5 Nh5 f5 Ke6 f4 d5 f3 d6 Na6 b8Q f2 Qc7 Nf6 Qc6 Qb6 Bb3 Bb7 d8Q Rg8 d7 Rf8 Qc7 Re8 d8N Nd5 Kd7 Bf6 Qh2 Nf4 Bg8 Ba8 Nb7 Nc7 Nd6 Re7+ Kd8 Rbe4 Rb1 a1R Ba2 Qd4 b3 Qb2 Rg1 Bb7 Rg2 Na8 Rg1 Qa3 Bb2 c1R Qh1 Rcc4 Rc1 R4e6 Rc2 Rce4 Be5 Rfc1 Re1 f1B Qh2 Bb5 Bd4 Rab1 Ba1 Qb2 Qc4 B5c6 Qh1 Rd1 Rf1 Rbc1 Rg1 Rf1 Ng3 Bb5 Qg8 Nh3 h7 Bd4 h8Q Rff7 Re1 Nf4 Q8h2 Bf6 Nh5 R4e5 Qh7 Bg2 Qc8 Re4 Qb7 Rb4 Rc8 Rcc7 Qc6 Ra7 Qg8 Rbe4 Nf3+ Kg6 Nh4+ Kg5 Qh7 Rf8+
3BQ2N/1bPPRnN1/PkB1Q3/1n2r3/1Kn1R1N1/rQn1q1p1/b2b4/1Q1n4 w - - 0 1 illegal: No proof kernel
1K3Br1/P1pP2n1/Nq3R1b/n1Pk4/2r3QB/bB1B1R2/1Q1Rr3/nn1nN3 w - - 0 1 legal: proof: e4 g5 b4 a5 f4 axb4 fxg5 d5 exd5 Qd6 g4 Ra6 h4 Bf5 h5 Bg6 hxg6 Qd8 Ne2 Ra5 Ng1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 a4 e5 c4 b5 d4 h4 c5+ Kd7 a5 h3 g7 b3 a6 f6 a7 b4 g6 h2 d6 Kc6 g5 b2 d7 b3 Qe2 Ne7 g8R Nf5 Ra3 Ng7 Nc3 b1N Nd5 b2 Rf3 Na3 Bd2 Qc8 d8B b1N Be3 Qh3 Qb2 Qh6 Bd3 Nc2 Bd2 Na1 Nb4+ Kd7 Kd5 f5 Bc1 f4 Na6 e4 Bf6 e3 Bd2 Ne6 g7 e2 g6 e1B Bh4 Nc6 Bc3 Rh7 Rh8 Re8 g8Q Rhe7 g7 Na5 Rh7 Qf6 Rh6 Bd2 Rg6 Bc1 Rg2 Rc8 Rd2 Ree8 Nh3 Re7 Rhf1 h1R R1f2 Re1 Ng1 Re2 Rf1 Ng5 R1f2 R7e4 Rf1 Qb6 Qe6+ Kd8 g8B Bh6 Qg4 Ke7 Bf7 Rg8 R1f2 Qf6 Rf1 Ne6 R1f2 N5b3 Kc6 Ng7+ Kb7 Nc2 d5 Nca1 Be8 Rc4 Ba4 Kf7 d6 Qg6 Rh3 f3 d7 Qe6 Rf1 f2 Nf3 Qf6 Ne1 Qd6 Qf4+ Ke6 Qg4+ Kd5 Rf3 Qe6 Bcf6 Qd6 Bd8 Na5+ Kb8 Qe6 Bb3 Qf6 Qa2 Ba3 Qb2 Qg6 Be7 Qe6 Bf8 Qc6 Rg1 f1N Bh4 Ne3 Rgf1 Nd1 Rf6 Qd6 R1f3 Qb6+
8/K1R3R1/2Q1Rn2/kq1r1rBQ/3Np2P/1QPr2Pb/3N2Qb/bBn1n2b w - - 0 1 illegal: No proof kernel
2B1b3/6n1/3QQ2B/R1R1P2k/1NqNp1Rn/R3P3/1P1brbr1/rbKn3Q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 d5 c4 gxh4 cxd5 e4 Ra6 Qe7 Ra1 Qe5 fxe5 Ba6 Rh2 Bb7 Rh1 Bc8 g4 h5 d4 a5 Kd2 f5 g5 Kf7 b6 Kg6 b7 c5 d6 c4 d7 f4 d8R a4 d5 h3 d6 h2 d7 c3+ Kc2 f3 Qd3 a3 Qd6+ Nf6 Qe6 a2 Qb6 f2 Qb4 h4 Bd2 h3 Be3 Nc6 b8Q Ne7 Qa3 Nh5 Qb5 Nf5 Kd1 c2+ Kd2 Bc5 Nf3 c1B+ Kc2 Bd4 Qab3 Bd2 Nc3 Rh6 Bg2 f1B Nd5 Ra7 Rg1 h1N Nb4 h2 Bh3 Nf2 Rg3 h1Q Re8 Rb7 d8Q Rg7 Qd6+ Be6 Rc1 a1R Ra8 Qg2 Bf4 Nd1 Ra5 Qf2 Qb7 Bb6 Qbb8 Qd4 Qh8 Qd5 Qc4 Bbe3 Nd4 Be1 Qe7 Bd7 Qd6+ Qe6 Bg4 Be8 Rh3 Bg1 Rha3 Rg8 e3 Bd3+ Kb3 Bd2 Qcd5 Rh7 Rcc5 Bc3 Qc4 Bb1 Bh3 Ba2+ Kc2 Bb1+ Kc1 Rf7 Qe2 Rf6 Qg4 Qc4 Qh6+ Kf7 Qg2 Nh4 Qh1 Rgg6 Bc8 Rg8 Bg3 Rf2 Bf4 Re2 Qhe6+ Kg7 g6 Bf2 Bg3 Kh6 g7+ Kg5 Bh2 Rf8 Bg3 Rf6 g8R+ Rg6 Rf8 Ng7 Bf4+ Kh5 Bh6 Rg4 Rf4 Rg2 Rg4 Bd2+
rnrb4/4nQ2/1R2B1q1/PQN1P3/1RN4P/rB1rN1p1/1K1N4/b1Bbk2n w - - 0 1 illegal: No possible last move, all moves rejected
Q2Nn1R1/n1K4r/1n5b/p3kB2/b7/1r1r1R1Q/b1PQqP1P/r1QBBN2 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 g5+ Ke3 a5 Kd4 e5+ Kc3 e4 Kd4 e3 b4 g3 c6 e2 b6 e1R c7 g2 b7 g4 b5 g3 b6 Ne7 Kc5 d4 Nd2 d3 Ne2 g1N Nf4 g2 Ra3 Re3 Ne6 Bd7 Kd6 Nbc6 c8B Nh3 b8Q g1R b7 Ng5 Be2 Na7 Nf1 Qe8 Bd2 Bh6 Qc1 Rh7 Be1 d2 Bd1 Ba4 Kc7 Rb3 Nd8 Ke5 f6 Qh5 f7 Qe2 Bd7 Nec8 f8Q Nb6 Qc8 Rb8 Qg8 Rgg3 Rg1 Rgd3 Qf7 Rb1 Qg6 Ra1 Rb3 Nf3 Rg2 Nd4 Qg5+ Nf5 Rc3 Rd6 Rf3 Rd3 Qh4 Ng7 Bf5 Rb3 Qd7 Ra8 Ne6 Rd8 Qd3 Rd6 b8Q Rd8 Qa8 Rd4 Qc4 Rdd3 Qb4 Qe4 Be2 d1B Qh3 Qg4 Qbd2 Qe4 Rfg3 Qg4 Bf3 Be2 Nd8 Qh5 B3g4 Bf3 Rg1 Bd5 Bd1 Qe2 R1g2 Rbb1 Rf3 Ba2 Rgg3 Rbb3 Kb8 Ne6 Rg8 Ng7 Kc7 Ne8+
B7/2R2N2/QB3R1p/N3KQ1n/2r2P1P/krnbN3/Nrn1QbP1/1q1bn3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 Bf5 axb5 Bh3 e3 Bc8 Bc4 f5 Bf1 f4 f3 g5 exf4 g4 Qc2 gxf3 Qa4 Ba6 Qd1 Bc8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kb4 h4 a5 d6 e5 b6 c5 d7 c4 d5 f2 d6 a4 b7 a3 Qe2 c3 Be3 a2 Nh3 c2 Nc3 c1R Bb6 Na6 b8N h6 Nc6+ Kb3 Na5+ Kb4 b3 Qe8 d8Q Qb5 d7 Bc5 Qg5 Ka3 d8N Bg4 b4 Rb8 Nf7 Nc7 Qf5 Nd5 Rb1 a1N Na2 Nc2 Ra1 Qa6 b5 Qb7 Rb1 Be3 Rb4 Rh7 Rc4 Rb1 Rc6 Rb3 Rf6 Rh8 Bc7 Bh5 b6 Rc8 Qa6 Bd1 Bd3 f1B Nf2 Bc5 Ng4 Bf2 Ne3 Rb2 Qe6 Nc3+ Kf5 e4 Ke5 Qb8 b7 Rh7 Bc4 Bd3 Bd5 Rg7 Qf5 Rg3 Bd6+ Rc5 Bc7 Rc4 Rf1 Qa7 b8Q Qb7 Bb6 Rf3 Rc6 Nf6 Qe8 Nh5 Rc7 Qb8 Ba8 Qb7 Re1 Rg3 Nd5 e3 Re2 Rf3 Rd2 e2 Ne3 e1N Qeb5 Be4 Rd6 Bd3 Rf6 Rg3 Qe4 Rg8 Qf3 Rb8 Qe2 Qe4+ Kd6 Qh7 Qf5 Rb7 Ke5 Qg6 Bd4 R7b3 Bb6 Na1 Nc1 Bb1 Qh3 Qc2 Na2 Qc1 Qf5 Bd3 Ng4 Qb1 Ne3 Nac2
1b1n4/B1kN3Q/b3P2b/4P2Q/2qpnN2/BBP1BK2/4R2b/n2rQRrr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 e4 d5 h4 Kd7 b4 f5 h6 g5 h5 f4 e6+ Kc7 e5 d3 h7 a4 h6 a3 Rh2 d2 Kf3 a2 Na3 Nc6 Bc4 Nf6 Qe1 d1R Nh3 Ne4 Re2 Ba6 Bb3 Qc8 Nc4 Nd8 Nb6 d4 c3 Bd6 Rb1 a1B Nd7 Bb2 Be3 Bc1 Ra1 Rg8 h8Q Rb8 h7 g4+ Kg2 g3 Kf3 g2 b6+ Kc6 b7 g1B b5+ Kc7 Qg7 Bh2 h8Q Bd2 Qgh6 Rg1 Q8h7 Rh1 Qh5 Ra8 Kg4 f3 Nf4 f2 Kf3 f1N b8B+ Kb7 b6 Qc4 Bg1 Ne3 Ba7 Nc2 Be3 Bb8 Rb1 Kc8 b7+ Kc7 Bc5 Na1 Ba3 Bb5 Qg3 Rdg1 Rf1 Ra5 Qgh4 Ba6 Qe1 Rb5 Bd1 Rb1 Bb3 Kc6 Bc2 Rd1 Bb3 Bc7 b8B Kb7 Ba7 Bb8 Bf2 Be3 Nd5 Bg5 Nf4 Bh6 Be3 Kc7
Q1N2R1r/qb2NBK1/2Pb1n2/1p4r1/1k3B2/1P5Q/n1PNNb2/Q3Rnrb w - - 0 1 illegal: No possible last move, all moves rejected
kBn1QB2/3N1Qn1/2Pb1P2/2B3Np/b1Nr1bn1/3R1P2/1b1qr3/1BR1r2K w - - 0 1 illegal: No possible last move, all moves rejected
n3b1k1/1Qn3rb/1rp2P1P/2BR3N/B1KbBNQ1/4rR2/1nQ1P1Q1/nq6 w - - 0 1 illegal: No proof kernel
N4b2/Q1rq3P/bR1Pk3/1Q2B1Pn/p1b1n1R1/1R1R1B1n/2rbK3/1N3r1Q w - - 0 1 illegal: No proof kernel
bB3rrB/N2bB1P1/5R1Q/N3Q1r1/B2K1nbn/3P4/qpRP2k1/2n1bN2 w - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 d5 b4 f5 exf5 axb4 Be2 d4 Bf1 d3 cxd3 Qd6 Nf3 Qd5 Ng1 Qd8 Ke2 Kd7 Ke3 Kd6 g4 Ke5 a4 h5 g6 b5 g5 c5 f3 c4 a5 h4 g7 h3 a6 b3 f6 b4 f7 h2 a7 b2 g6 c3 Be2 c2 Ra6 b3 Nc3 b1B Bb2 c1N Qe1 Bd7 Bd1 Qa5 Rf6 Nc6 Nb5+ Nd4 Ne2 Nh6 g8N Qa2 Ng3 Bc2 Nf1 e6 Rg1 h1B Ne7 Rg8 Rg4 Bg7 f8B Rd8 Bc3 b2 a8Q Bh8 Bg7 Rdf8 Qa6 Ba4 Bb4 Nde2 Rc4 Nf4 Rc2 Bc8 Na7 Bad7 Nd5 Bg2 Be7 Bh1 Nb4 Bg2 Qg3 Nf5+ Kf2 Nh4 Ke3 Bh3 Qe1 Bg4 Qb6 Bb7 Nbc6+ Kd5 Qa6 e5 Na5 e4 Bd6 Bbc6 Bb8 Ba8 Bh6 Nh5 f4 Bg7 f5 Nf4 Rc7 Ke5 Ba4 Rf7 Qg3 Bf8 Qb6 Be7 Bg7 Rff8 Bh8 Bd8 g7 Be7 Rc2+ Bd6 Kf2 e3+ Kg1 e2 Kf2 e1R Qc6 Rd1 Ke3 Bc7 Qh1 Ng6 Qh6 Nh4 Rf7 Bd6 f6 Kf5 Kd4 Re1 Re7 Re5 f7 Rb5 Re6 Bc5+ Kc3 Bf2 Qh2 Be1 Kd4 Bgf3 Rb6 Kg4 Rf6 Rg5 Qe2 Kh3 Qe5 Re8 f8B Bfg4 Ba3 Ref8 Be7 Kg2
5Q1B/nR1K2PB/R1R5/Q7/1qp1n1r1/Pk1b1NR1/r1b1P2b/nN1nB2r w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kg3 b5 Kf4 f5 g4 h5 d4 c5 d6 Ke6 d7 Kd5 e6 Kc4 Ke5 b3 d5 b4 g6 b2 g5 f4 e7 f3 Kd6 h4 g7 f2 g6 h3 Bf4 b3 Bc1 h2 Bg2 f1N Be4 Nd2 Nf3 Rh4 Qe1 Qa5 d8B Qb4 Ba5 Nf6 g8R Ba6 Bf5 Bh6 e8R Nc6 Rc8 Nfe4+ Kd7 Na7 d6 Rg4 Rc6 Bf4 Rb8 Bg3 Rg1 h1R Rb7 Bh2 Rg3 Bb5 Ke7 Ba4 d7 Bb5 d8Q Ba6 Nc3 b1B Kd7 b2 Qf8 Bc2 Nb1 Nb3 Bf4 Bb5 Be5 Ba6 Bh8 Bb5 Nc3 b1N g7 Ba6 Bh7 Bb5 Na4 Nbc3 Qd2 Nd1 Nc3 Ba6 Nb1 Qa3 Bc3 Qb4 Qg5 Bb5 Be1 Ba6 Nbd2+ Kc3 Qgd8 Bad3 Qa5 c4 a3 Rb8 Rb1 Na1 Ra6 Ng5 Rbb6 Ne4 Rc6 Rb5 Rc1 Kb2 Nb1 Kb3 Kc7 Qc3 Bf2 Ka2 Nbd2 Kb2 Kd7 Rb8 Rb1+ Ka2 Rb5 Qb3 Nb1 Qc3 Re5 Rb2 Rb5 Qb4 Be1 Kb3 Rb7 Ra2
2Nr1B2/n1P1K1n1/1b2B3/Nrk3pR/1N1r1PbP/6B1/Q2q4/1r1NnQbR w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 b4 Kd6 c4 e5 h6 g6 h7 a4 f6 a3 b6 a2 b7 Be6 f7 Qe8 c5+ Kc6 b5+ Kd7 c6+ Kd6 b6 Bg4 c7 Qe7 Na3 Nc6 b8Q Nf6 b7 Na7 Bf4 Qd7 Ne2 Ne8 Nc3 Kc5 Nc4 Ng7 Bh3 g5 Qf1 Be7 Na5 Rd8 h8N Bf8 Re1 a1B Bg3 Be7 Qc8 Rb8 f8B Bd6 f4 e4+ Kd2 d3 Ke3 d2 Ng6 d1R Ne7 Rb1 Nd1 Bde5 Re2 Qd6 Qe6 Bf6 Nc8 d4+ Kf2 d3 Ke3 d2 Qa2 Bf3 Be6 Bg4 Nc3 d1R Rd2 Rdc1 Nd1 Rc4 Rb2 Be7 Rb6 Qd5 Rd6 Rd4 Rd7 Bd6 Rf7 Rb5 Rf6 Be7 Rh6 Qd6 Rh5 Qd7 Kf2 e3+ Kg2 e2 Kh2 Ra8 b8N e1N Nbc6 Rab8 Nb4 Bb2 Rh8 Bc1 Rh6 Be3 Rh5 Bf3 Kh3 Bg1 Nd5 Rb1 Nb4 Rb5 Ne3 Bc6 Kg4 Qd5 Nd1 Bd7 Qae2 Qg2 Qb2 Qd2 Qa2 Ne8 Kf5 Ng7+ Kg6 Bd6 Kf7 Be7 Bc4 Bg4 Be6 R4d6 Rh3 Bf6 Rh2 Bfd4 Rh1 Bdf2 Ke7 Rd4 Qa3 Be3 Qa2 Re4 Nd6 Kb6 Nab7 Rc4 Nd5+ Kc6 Nc8 Bb6 Na5+ Kc5 Nb4 Rcd4
1RnB1qk1/P1PR2bb/2Qn1rBQ/3NP1bB/7n/5N2/N1rpK3/2n1B2r w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 e4 g5 c4 f5 h4 Kf7 a4 b5 h6 d5 h7 d4 a5 d3 h5 d2+ Ke2 f4 h6 b3 c6 b2 c5 b4 a6 b3 a7 g4 c7 g3 c6 g2 Qc2 Bg7 Nf3 g1B Nc3 b1N Na2 Bf5 c8N b2 Ne7 Na3 Nd5 b1N Bb2 Nb5 Bd4 Ne7 Bf2 Qf8 Be1 Nd7 c7 Nc8 Rh2 Rb8 Qc6 Be3 Rg2 Nbd6 e6+ Ke8 e7 Kf7 e5 Rb2 Rg5 Rc2 Bh3 Be4 Bg4 Bg6 Bh5 Nc3+ Kf1 Ne2 Rb1 Nc1 Rb8 Nf5 Rg1 Nh4 Rh1 Nd6 e8B+ Ke6 Rg1 Nb6 Rg4 Be4 Beg6 Nc8 Rg5 Qg8 Rf5 Qf8 Rf7 Bf5 Ng1 f3 Rd7 f2 Nf3 Nd3 Ke2 f1R Ne7 Rh1 Nd5 Rg8 h8B Bg5 h7 Nc1+ Kd1 B7h6 Bf6 Bg7 h8Q Bd3 Be8 Be4 Qh6 Bh7 Beg6 Rh8 Nh2 Rf1 Bd8 Rf6 Be4 Bg6 Nf3 Rh7 Ne7 Kf7 Nd5+ Kg8 Bf5 Rh8 Be4 Bh7 Beg6 Nd3 Ke2 Nc1+ Kf1 Ng2 Bg4 Nf5 Qh1 Nfd6 Be8 Bf5 Qh5 Nb3 Ke2 Rh7 Qg6 Rh1 Qh6 Nh4 Bgh5 Bh7 Beg6 Nc1+
Nnqr4/N2R4/k1N2b1r/1r2QRp1/2QPK3/4N1PB/PBrb1rq1/1Q2n3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 Be6 h5 Bf7 Nh3 Nd7 Ng1 Bg6 hxg6 Nb8 Ke2 Kd7 Kf3 Kc8 d4 e5 g3 b5 d6 Kb7 g7 c5 d7 h5 f6 c4 f7 h4 Ne2 b3 Nf4 h3 Ne2 b4 Ke4 h2 f4 c3 f5 b2 f6 b3 Kd5 e4 Nd2 b1R Bh3 c2 Bb2 c1R Nc4 e3 Nc3 e2 Nb5 e1B Na7 Nh6 g8Q Qc8 d8N+ Ka6 Ne3 Nf5 Ndc6 Rc2 Ke4 Bg7 f8N Rh6 f7 Bd2 Ne6 Bf6 f8Q Nh4 Qd6 Nf3 Qe5 Ne1 Rf1 h1R Rf5 Rf1 Qc1 Rf2 Qh7 Rc5 Qc4+ Rb5 Qg6 Rc1 Rb1 Rc2 Nc7+ Kb7 Ba1 b2 Rc1 b1Q Bb2 Nf3 Rh1 Qg1 Qh7 Qg2 Rf1 Nd7 Re1 Rb8 Na8 Ka6 Rh1 Qc7 Re1 Rd8 Rb1 Nb8 Rf1 Bg7 Rf7 Bf6 Rd7 Qc8 Qg6 Qg1 Qgf5 Ne1 Qg6 Re2 Rf5 Rf2 Qh5 Rf8 Qd1 Rd8 Qb1 Qg2+
b1N4n/rb1Q3R/N3BKb1/R1qbqpn1/N2k2PB/1Q1B1P2/4r2P/3B2b1 w - - 0 1 illegal: No proof kernel
1B2bR2/5r2/1KN1k3/2P1P1bq/R1b1B1p1/3Rqb1Q/1N1Q1P2/RbN2nnr w - - 0 1 illegal: No proof kernel
B3nk1q/1rQ4n/q1K1b1p1/2bR4/P2r1r2/3NB2Q/N1PRP3/1Rr2RrQ w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 d5 Ke3 f5 Kd4 b5 a4 b3 h4 g6 e6 b2 e7 b4 c6 b3 Kc5 f4 h6 d4 c7 d3 h5 f3 h7 f2 h6 d2 Nc3 b1Q Nh3 b2 Na2 Nf6 Nf4 Ra7 Bg2 f1R Nd3 Rf4 Ba8 Na6+ Kc6 Rb7 Rf1 Be6 c8Q Nc7 Qe1 d1R Be3 Rg8 h8Q Rc1 h7 Kf7 e8R Bc5 Re7+ Kf8 Rd7 Nce8 Rd5 Qa5 Qc7 Qa6+ Qb6 Rd4 Qh4 Rf4 Qh1 Rd4 Nab4 Qa2 Rb1 Qa1 Na2 Rf4 Rg1 Rd4 Rd1 Rf4 Rd2 Rg1 Rf1 b1R Qh3 Rc1 Qh1 Ng4 Qc3 Qb2 h8R Ngf6 Rhh5 Nh7 Rhe5 Qa5 Qc7 Rg7 Re4 Rd7 Rb4 Qa1 Qa3 Qh8 Rb1 Qa7 Qh3 Rd8 Qb4 Qa5 Qe4 Qa7 Qeh1 Rd7 Re5 Rd4 Rd5 Qa6+
4qQ2/k1b2r2/2BP1nb1/1p1B1Nn1/1PbrQ1Q1/4B3/PN5q/RK2QbRb w - - 0 1 legal: proof: f4 a5 h4 d5 c4 g5 hxg5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 Kd1 Kd7 Kc2 c5 e4 Kc7 d4 h5 b4 f5 g4 f3 e5 c4 g6 f2 e6 h4 g5 c3 g7 f4 e7 h3 e8Q h2 g6 f3 Qe4 Nc6 Na3 Bf5 Qa4 Kb8 d6 b5 d5 Qe8 d7 Rh4 Ne2 Nd8 Rg1 h1B Bg2 f1B Nc4 f2 Nd4 Bd6 Nb2 Bc4 Be3 f1B Kb1 Ra7 Qd1 Bc7 d6 Nf6 g8B Ne6 g7 Bg6 Qe1 Ng5 Bd5 Rf4 g8Q c2+ Kc1 Rb7 d8Q+ Ka7 Qde7 Rh4 Qef8 Rg4 Qe5 Rh4 Nf5+ Rd4 Qge6 Bb8 Qe4 Rf7 Qg4 Bc7 Qee4 Bcd3 Kd2 Bde2+ Kc3 c1Q+ Kb3 Qc5 Bc6 Qd5+ Kc2 Qde5 Kb1 Qf4 Qd3 Qfe5 Bgd5 Qh2 Qde4 Bc4
6b1/r7/rqP2NN1/qnR2rBK/1n4B1/1Q1pPRP1/1b1B3N/Q1rN1r1k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 b4 Ke4 c4 f5+ Kh5 d5 e6 a5 e7 f4 e8Q+ Be6 g3 a4 g6 f3 c5 a3 g7 a2 b6 f2 b5 Ne7 g8N Nbc6 b7 Nc8 b8B Bg7 b6 N8a7 b7 Nb5 Ne7 Rf8 Kg5 h5 Nf3 h4 Kh5 h3 Qd7 h2 e3 Bg8 Bf4 Rf5+ Bg5 Ra4 Rg1 h1Q+ Nh2 Nb4 b8N Ra7 c6 Qb6 Bh3 Qg2 Qb3 Qf1 Ng4 Kf3 Nc3 Qg2 Rb1 a1R Rf1 R1a6 Ng6 Bf6 Qg7 Qh2 Rg1 Be5 Rg2 f1R Nd7 Bf6 Ra2 Qc2 Rbb2 Qb1 Rc2 Qa1 Rab2 Qaa5 Ra2 d3 Qh8 d2 Nh2+ Kf2 Bg4 Kg1 Ra1 d1R Bd2 d4 Ra4 Rb1 Nd1 d3 Rc5 Nc2 Rf4 Rc1 Rf3 Nb4 Qg7 Ba1 Qe5 Kh1 Nf6 Qb7 Qeb2 Qbb6 Q2a3 Be5 Qa1 Bb2
1R6/QnK3P1/1r1b2qn/1Bkbnn1Q/R3P1pN/3r1NB1/R1N3nP/3N3q w - - 0 1 illegal: No proof kernel
NQ1bk3/5RPq/q1p2bRR/1n6/BB3K1P/3b1n2/b1rB1QPb/3Br2N w - - 0 1 illegal: No proof kernel
NBn2R1r/3Q1PR1/3pbNP1/b2P2KQ/6Q1/1QN2q1n/1n4nk/1Br1q2n w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 c4 Kf7 f4 Kf6 Kf2 a5 d4 h5 g4 e5 c6 e4 c5 h3 Kg3 h2 b6 e3 c7 e2 g5+ Ke7 b7 e1N c6 Kd6 d5 a4 f6 a3 f5 Ke5 f7 a2 g6 Bh6 f8Q Nf6 Bd3 Na6 b8Q Ne8 f6 Nc5 f7 Bd2 Nc3 Ng2 Bb1 Nd3 Nge2 Nd6 Ne4 Nb2 Qh6 Qf6 Qbb3 Ba5 N2c3 h4+ Kh3 Qf1 Nf6 Ra6 Kg4 h3 Qh5+ Qf5+ Kg3 Rb6 Be3 Rb4 Ba7 Rc4 Bb8 Rc5 Bd3 Rc4 Rb1 a1Q Qdg4 Rc5 Na4 Rc1 Nc3 Bb7 Bc2 Nc8 Bd3 d6 Bc2 Na7 c8Q Ba6 Qc7 Nc8 Qd7 Bb5 c7 Ba4 Qd8 Bd7 Qe8+ Be6 Qd7 Qa4 Ra1 Qe4 Bb1 Qe2 Rf1 Qe1+ Rf2 Nf4 Kh4 h1N Ra4 h2 Ra2 Ng3 Rc2 h1N Rh2 Nf2 Rh3 Na7 c8N Ngh1 Nb6 Nc8 Na8 Kd4 Rh2 Ke3 Ra4 Qe4 Rc4 Qf3 Rh3 Na7 Rc8 Ng2+ Kg5 Qd2 Rg8 Qe1 Rg7 Nc8 Rh2 Nfd1 Rh3 Kf2 Rh2 Kg1 Rh3 Qd3 Re3 Ndf2 Re2 Bf5 Re8 Qf3 Rf8 Be6 Qf4 Ne3 Kh4 Kg2 Qfb4 Kh2 Qg4 Ng2+ Kg5+ Nh3+
r3Nq2/1B1kp2r/qBRq2Q1/1QB1bNPn/3P3Q/6n1/K1bq2P1/4Q1qR w - - 0 1 illegal: No possible last move, all moves rejected
4BQ2/P1qBQN2/nR6/R1p1Rbqr/3bn3/Pr4B1/3B2nP/1KnN1k1n w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxa5 Ng8 e4 Ke7 d4 Kf6 Kd2 Kg5 Kc2 Kh4 d6 b5 d7 g5 a3 c5 a6 f5 d5 b4 h6 f3 a7 g4 e5 b3+ Kb2 f2 d6 f4 h7 f3 e6 g3 e7 g2 e8B Bg7+ Nc3 Qg5 d8B Bf5 d7 Na6 Bd3 f1N Kb1 b2 Qe1+ f2 Bc7 Ng3 d8Q f1N Qee7 Bd4 Nh3 g1N Bd2 Rb8 Nd1 Ne3 Bd6 N1e2 Re1 Nh1 Bg3+ Kg4 Bd7 Kf3 Qdf8 Kg2 Bc2 Be6 Bg6 Rb3 Bge8 Nf6 Ra2 Ne4 Ra1 Qg8 Ng5 Bf5 Nf7 Nc1 Ra2 Qg5 Ra1 Rg8 h8R Rg6 Rg8 Rh6 Rg6 Rh5 Re2+ Kf1 Rb6 Ng2 Rb5 Qf4 Ra5 Qc7 Re3 Rb4 Rb3 Rb7 Rb6 Rb8 Rc6 Rb3 Rb6 Ng5+ Qe4 Bh8 Ra2 Bh3 Bdf4 Bf5 Kc2 Bd4 Be3 Nd3 Qee7 b1Q+ Kd2 Qa1 Kc2 Bh8 Bc1 Qg7 Rb2 Qg8 Kb1 Bd4 Be3 Ne4 Re6 Rb7 Re5 Nc1 Bd2 Qg5 Rb3 Rb4 Rb2 Rc4 Rb7 Rc3 Rb6 Rb3+
4Q1Bk/p1QR4/Q1q5/PN3Rbr/PKb3Q1/rq6/bNPn3n/3Bb1bB w - - 0 1 illegal: No proof kernel
NN1nK1b1/BQ3nr1/qNR1Q2r/kr1B1b2/3P1qP1/1R5p/3Pr2B/B1b5 w - - 0 1 legal: proof: h4 d5 e4 b5 a4 g5 axb5 gxh4 c3 f5 exf5 d4 cxd4 Qd5 Ra3 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 h5 Ke4 a5 Ke5 c5 b4 Kc7 f4 Kb6 g4 h3 f6 e6 f5 a4 f7 a3 f6 h4 Ne2 a2 Bb2 h2 Nbc3 c4 Qb1 h3 Nd5+ Kb7 b6 Ka6 b5+ Ka5 b7 c3 b6 c2 Bg2 c1R Nef4 Bc5 f8Q Qc7+ Qd6 Rh6 f7 Ra7 f8B Ba3 Qe4 Rc3 Rhc1 h1B Rab1 Rc5 Ba1 Rb5 Rc6 Bc1 Rb3 Qf7 Qe7 Qf5+ Kd6 e5+ Ne6 Qf4 Qf5 e4+ Qe5 e3 Bg7 Rh7 Nec7 e2 Na8 e1R Qd7 Nh6 Ke7 Rh8 Qee6 Nf7 Be5 Rh6 Ke8 Re2 Qc7 Na6 b8N Nc5 Qce7 Nb7 Be4 Nbd8 b7 Bg2 Ndb6 Bf1 Bd5 Bg2 Bb2 a1Q Bc7 Qa3 Ba1 Be4 Be5 Bh7 Bd6 Bg8 Qc7 Qf6 Bh2 Qd6 Na6 Qg5 b8B Qgf4 Qce7 Rd7 Ba7 Qa3 Nb8 Rb7 Qe5 Bf5 Q5e6 Ne5 Nc8 Ka4 Qg5 Rg7 Qge7 Nef7 Qb7 Qa2 Rf3 Kb4 Ncb6 Qa6 Rb3+ Ka5
b1bQ2B1/5N2/Rn3qR1/rQBRK3/qpB1n1NP/b1Pb4/P2q2R1/1k5r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 Kf6 Kf4 b5 h4 d5 c3 d4 h6 d3 c6 b3 h7 b2 c7 d2 Nh3 Ra5 Qa4 d1B Bc4 Nd7 Rh2 Nb6 Ng5 Bf3 Nf7 Ba8 Na3 b1B Rg2 Bd3 Nc2 g6 Ne3 e5+ Kg4 e4 Kf4 Qd7 Ba3 Qd4 Rd1 g5+ Kg3 g4 Kf4 g3 Bc5 Nh6 f3 Rg8 h8R Ng4 Rh6+ Rg6 Rdg1 Nf2 Rh5 b4 Qb5 Bh6+ Rg5 Qd7 Qa6 Qa4 Qb5 Kg7 Ng4 e3 Rd1 e2 Ke5 Ne4 f4 e1Q f6+ Kh7 f5 Qd2 Rdg1 Rg7 Rg6 Bg5 Rd1 Be3 Rf2 g2 Re2 g1Q Rg2 Qb2 Rdd2 Qf1 Rd1 Bc1 Rdd2 Bcb7 c8B Qf3 B8e6 Bc8 Bed5 Qbc2 Be6 Ba3 Rd1 Be2 Rd5 Qd2 Nh8 Qf2 f7 Bd3 f8Q Re7 f6 Re8 f7 Qff4+ Kd4 Qf6+ Re5 Re7 Qd8 Re8 f8R Re7 Rgg8 Rg7 Nf7 Kg6 Re8 Nd6 Ng5 Nd5 Nf2 Kh5 Rg3 Ne4 Re7 Rg6 Ra7 Nb6 Ra6 Rg7 Nf3+ Rg5 Rg6 Rf5 Ng5 Rf3 Rg1 Rh3 Bg8 Rh1 Nfh3 Qb3 Rg2 Qa4 Re2 Kg4 Nf7+ Kf3 Reg2 Ra1 Nf2 Ke2 Ng4+ Kd1 Nf2+ Kc2 Ng4 Qf4 Rf5 Rh1 Rd5 Qf3 Ke5 Kb1 Rg5 Qff2 Rg6 Qf6+
n3B1r1/1qr4r/3bN2B/3R2P1/N4Bnk/3QP1R1/3RPBbp/Q1qK1b1r w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 h4 d5 cxd5 gxh4 Rh3 e4 Rh1 e3 fxe3 Ba6 Rh3 Bb7 Rh1 Bc8 d4 Ke7 g4 Kf6 b4 Kg5 d6 h5 b6 f5 b7 c5 b5 a5 b6 h3 d5 h4 d7 f4 d6 f3 Bb2 a4 Nc3 h2 Bh3 c4 Ra2 a3 Qa1 f2+ Kd1 f1B Na4 Qc7 d8Q+ Nf6 d7 Na6 b8B c3 b7 Bd6 Bg2 h3 Bc6 Kh4 g5 Rh7 Nf3+ Kg3 Bb5 Ng4 Nd4 Kh4 Rg1 h1R Ne6 h2 Rg3 Qb6 Bc6 Nc7 Bb5 Ra7 Bc6 Na8 Bc7 Ra5 b8B Rc5 Bb5 Qb7 Bc6 Be7 Bf4 Bf8 Bbe5 Bd6 Bg7 Rc4 Bh6 Rc5 Bb5 Rc6 Bc1 Rc7 Bd2 Bg2+ Be1 c2+ Kd2 c1R Bf2 Rb1 Rc2 a2 Rc5 Bf1 Rd5 Rb3 Kd1 Rb4 Qb1 a1Q Qf6 Qb2 d8R Bd7 Qff5 Bc6 Qa1 Qc3 Rd2 Bcg2 Be8 Rb5 Qg6 Rf5 Rd7 Rf8 Qd3 Rg8 Rd8 Bf8 Rd4 Bd6 Rd5 Qc1+
4BbNr/3brq2/k1BKQB2/3b1P1P/3q2Q1/1N1n1QRB/q1pPn1R1/2q5 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Ke3 b5 Ke4 c5 Ke5 Kc7 f4 Kb7 h4 g5 a4 g3 h5 b4 f6 b3 f7 g2 d6 g4 d7 b2 Nc3 b1B Bb2 c4 Ne4 g3 Qg4 c3 Rh2 c2 Ne2 g1Q Nc1 g2 Ra3 Nf6 Nb3 Qe8 d8Q Qa7 Qd6 g1Q Rg2 Ba2 Qde6 Nd5 Nf6 Na6 Ng8 Bd7 f5 Nc5 a6+ Kb8 a5 Nc3 Bb5 Ne2 Kd5 Qb1 Bf6 Nd3 Ba4 Qb6 a7+ Kb7 Bb5 Rb8 a8B+ Ka7 a6 Rb7 Ba4 Rc7 B8c6 Qb4 Qd6 e5 Qe6 e4 Bab5 Kb6 a7 e3 a8B Qb2 Ba4 Ka6 Qf3 Bc5 f8Q Qf7 Qg7 Bf8 Qgg4 Qc1 Ne7 Qc3 Kd6 Q3a1 Na5 Bd5 Rc3 Qa2 Nb3 Bc8 Be8 Bd7 B4c6 Qca1 Rc4 Qd4 Rc5 Nef4 Rc3 e2 Bab7+ Ka7 Ba6 e1Q Bc4 Qc1 Ba6 Ne1 Bf1 Ne2 Re3 Ka6 Rc3 Bh6 Ng8 Bg7 Rg3 Nd3 Bh3 Bc8 Rg1 Re7 Rg2 Bf8 Qfe4 Nc5 Rcg3 Nd3 Qef3 Bd7
2Qn4/r2b2b1/3R1R2/r2P1b1n/Q2PQqrK/2B1N3/1q1pBkPB/1Q2N2r w - - 0 1 illegal: No possible last move, all moves rejected
Bb2rRn1/7n/6n1/1r1PnP1Q/1QN2NPN/Bq2Q1KN/2kq2p1/Rb4q1 w - - 0 1 illegal: No proof kernel
k1nrQR1Q/bq1B3K/Q3br2/N1P1P2r/1BP1rp2/3n1N2/NRN5/5q1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 d5 Kf3 Kd7 Kg4 a5 Kf5 g5 h4 f3 c4 f2 b4 d4 e4 g4 e5 g3 h6 a4 h5 a3 b6 d3 h7 f6 Kg6 Kc6 b5+ Kb7 h6 d2 Bh3 f1R Rh2 a2 Na3 g2 Qa4 d1B Bd2 f5 Bb4 Qd7 Nc2 Na6 Nf3 g1R+ Bg4 Kb8 b7 Bd6 Re2 Ka7 b8N Ne7+ Kg7 Kb7 Nc6 Bb8 b6 Ba7 Na5+ Kb8 Rb1 a1Q Rb2 Qb7 Rf2 Be6 Qb5 Rd8 h8Q Nc8+ Kg6 Re1 h7 Rgf1 Qhe8 Re4 h8Q Rh1 Qa4 Rh5 Qac6 Be2 Bh3 Qf1 Qb5 Nc7 Qa6 Nd5 Bg4 Nce7+ Kg7 Nf4 Bh3 Nd3 Bg4 Qd5 b7 Nc8 Kg6 Rd7 Bh3 Rf7 Bg4 Rf6+ Kg7 Kc7 b8N Qb7 Nbc6 Rb8 Be1 Bd1 N6b4 Be2 Na2 f4 Rg2 Bd1 Bb4 Be2 Bh3 Ra8 Rg5 Bd1 Rf5 Be2 Ng5 Bf3 Bg4 Bh1 Nf3 Ne7 Bh3 Rd8 Bg4 Kb8 Bh3 Rfh6 Rf8 Ka8 Bg4 Rf6 Bf5 Bd5 Bc8 Be6 Bd7 Rhf5 Kh7 Nc8 Ncd4 Rg5 Nc2 Rh5+
6BB/Q1BnKn1q/8/QP4pq/2bq1PNn/R1r2k1B/2Pbr1R1/QN2q3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 b6 Kf7 Ke2 Kf6 Kd3 Ke5 Kc4 Ke4 h4 d5+ Kb5 e5 b4 g5 h5 a5 b7 g3 c6 d4 h6 a4 h7 d3 c7 d2 f6 a3 f7 g2 Rh2 a2 Nf3 g1N Na3 Be6 c8B Qe7 Bc4 Nh6 Bd7 Rg8 h8B Ra5+ Kb6 Rc5 b5 Rg7 Qf1 d1Q Rg2 Rc8 Nh2 Qh5 f4 Nf3 Bd2 Nh4 Ba5 Ke3 Bd5 e4 Bb3 Bd5 Bh3 Qd7 Qh1 Bb4 f8Q Re7 Qd8 Bd2 Ng4+ Kf3 Qc7 e3 Kc5 Qf5 Kd6 Nd7 b8Q e2 Qba7 Qh7 Qb1 e1Q Bc4 Be4 Bg8 Bd3 Qc3 Rc5 Bc7 Re2 Qca5 Rc4 Qb2 Rc5 Qe5 Nf7+ Ke7 Rc4 Rb1 a1Q Rb3 Rc6 Nb1 Qa4 Ra3 Qae4 Ne3 Qd5 Qa1 Rc3 Bf5 Qd4 Bh3 Nde5 Ng4 Bc4 Bg7 Nd7+ Bge5 Be6 Bh8 Bc4+
1n3B2/qrKRQ1r1/k1bn2R1/Bp4q1/nn1P4/P2Q2NP/2Q3B1/b1N1B2r w - - 0 1 illegal: No possible last move, all moves rejected
Q3QbN1/Rr3n2/B1q1b1B1/PP4Qr/r2pQ3/1B1r1q1k/3PN1b1/3KnR2 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 b5 hxg5 f5 exf5 Kf7 c4 Nh6 Ba3 Ke8 cxb5 Bg7 b6 Bf8 b5 Ng8 Bb4 axb4 g4 Kf7 f4 c5 a4 h5 b7 d5 g6+ Kf6 g7 e5 Qf3 d4 Rh3 e4 Rh1 b3 Nc3 c4 Kd1 h4 Bd3 h3 Nge2 b2 Rf1 e3 Qe4 Na6 b8Q Nh6 g8B h2 Bd5 h1B Bb7 Nc5 Ba6 Qd5 Qa7 Rb8 Qa8 Be6 Bc2 Nd3 g5+ Kg7 g6 Kf6 g7 Rb7 g8B Nf7 Bb3 Bg2 Bh7 Ne1 Bg6 Rh5 Ra3 Kg7 f6+ Kh6 f5 Kg5 Ra1 Qc6 Nd5 c3 Ne7 b1R+ Nc1 Rb2 Ng8 Ra2 Ne2 c2+ Kc1 Nd8 f7 Qc3 f6 Ra3 Qd3 Kg4 Qe4+ Kh3 Ra2 Rd7 Qad5 Rb7 Qg5 Qc6 Bc4 Rd3 Bb3 Qd5 Ra1 Qf5 Ra3 Qf3 Ra2 Bh6 f8Q Nf7 Qe8 Bf8 Ng3 Nh8 f7 e2 Ra3 Bb4 f8Q Nf7 Qa8 Bd6 Qfe8 Bf8 Kb2 c1R Ra2 Ra1 Ra3 Nc2 Ra2 e1Q Ne2 Qeg3 Ra3 Ra2+ Kc1 Qd6 Kd1 Ne1 a5 Rc2 Ra2 Rcc7 Rc2 Rc4 Rc3 Ra4 Rc7 Qc6 Re7 Rb8 Ra7 Rb7
kr1nR3/1q4KB/2b1RRPN/2Q3Q1/1bR2BQ1/b1p5/2Pn2P1/2rNr1bq w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 e5 h4 Bh6 hxg5 Bf8 d4 f5 dxe5 fxe4 Kd2 h5 Ke3 a5 Kf4 d5 b4 Kd7 Kf5 c5 Kg6 Kc7 f4 Kb7 e6 d4 f5 a4 f6 a3 b6 d3 b5 e3 f7 e2 e7 e1B e8R a2 Bf4 c4 Nc3 h4 Qg4 d2 Nd1 h3 Re6 h2 Nh3 Qc7 Nhf2 Nf6 Bd3 Bd7 Rf1 Ba3 f8Q h1Q Kg7 Nc6 Qc5 Rae8 Bh7 Nd8 g6 Ne4 Rb1 Rhf8 Rb4 Ka8 Qgg5 Qc8 Ng4 Bc6 Nh6 Bf2 Qg4 Bg1 Rf2 c3 Rc4 a1B Qcg5 B1b2 b7+ Ka7 b8R Bb4 Rf1 B2a3 Ra8+ Kb7 b6 Qb8 Bh2 Rh8 Rff6 Qc8 Bf4 Qb8 Nf2 d1R Qc5 Rc1 Nd1 Qa7 Qcg5 Nd2 Rc8 Ka6+ b7 Qa8 b8Q Qb7+ Qc7 Ka7 Rd6 Re1 Rde6 Nf7 Rce8 Nd8 R8e7 Ka8 Qce5 Nf7 Qc5 Rb8 Re8 Nd8+
3RQ3/B2nq2n/1BR3P1/1r2NPr1/3Q4/1QP1rBB1/bN2pb1r/1Kb3kq w - - 0 1 illegal: No possible last move
3K2Br/k1b2RR1/r1b3Pr/1pbr2N1/n1R2PBQ/1P2Q3/2N2Q1n/1R1q2q1 w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 a5 c4 a4 cxd5 a3 b3 Be6 Bb2 axb2 Rh3 Bd7 Rh1 Bc8 Ke2 Kd7 Kf3 e5 Ke4 b5 d4 h5 a4 c5 f4 Kc7 g4 Kb7 a5 c4 d6 h4 Kd5 h3 g6 h2 f6 c3 a6+ Ka7 d7 e4 Ke6 c2 d5 c1Q g5 e3 g7 e2 f7 e1B g6 Bd6 f8R Be5 d6 Ba5 Rf7 Bd2 Ra4 Qf8 Na3 b1R Bh3 Bb4 Qd2 Qc6 Bg4 Qd8 Qe3+ Bc5 Nf3 Nf6 g8B Rd1 Nc2 Rd5 Rb1 h1R Rc4 R1h6 Ng5 Bb7 Qf2 Qdb6 d8R Nbd7 Ke7 Qc8 Rg7 Bc6 Rf8 Qcb8 Rff7 Qc8 Bf3 Ng4 Qe3 Nh2 Bg4 Nf6 Qf2 Ne4 Qe3 Nc3 Qf2 Bcd4 d7 Na4 d8Q Qf5 Qe8 Qd3 Qh4 Bg1 Qf2 Qd1 Qd8 Rc5 Qd3 Rd5 Qde3 Rad8 Qh4 R8d6 Qhf2 Qbd4 Qh4 Rf6 Qef2 Bd6+ Kd8+ Ka8 a7 Qa1 Qfg3 Bgc5 Qf2 Qad4 Bd7 Kb7 a8Q+ Kb6 Qc8 Ka7 Qe3 Qg1 Qef2 Qdd1 Bg4+ Kb6 Qe6 Ka6 Qee3 Kb6 Bd7 Ka7 Be6+ Bc7+ Kc8 Be8 Bg4 Ra6 Bf5 Bc6 Bd7 Bb8 Kd8 Bd6 Bg4+ Bc7+
N2RnRK1/2q1BQ2/QN4pP/7Q/P4n2/r1nN1NrB/2Pb3q/q1n2b1k w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Kd4 e5+ Kd5 b5 f4 b3 h4 b4 h6 b2 h5 g6 a3 b3 c6 e4 c7 e3 h7 e2 Nd2 b1Q Nh3 e1N Nf3 b2 Qd3 Na6 Nf2 Nc5 Qa6+ Ne6 Bh3 Bh6 Rf1 Nd3 Kd6 Bb7 c8N Ra7 Be3 Nc1 Bc5 Bc6 Rd1 Bb5 Nb6 Bf1 Nd3 Qc7+ Kd5 d6 Na8 Bg5 Ra2 Qa1 Bb4 b1N a4 Rb7 Rb2 Bh6 Ba3 Rb3 Bc5 Ra3 Rb8 Qc3 Rc8 Qd2 Rd8 Qh2 Rf8+ Ke7 f6+ Kd7 f5 Nc3+ Kc4 Nf4 f7 d5+ Kd4 Nf6 Be7 Ne8 Rd2 Qc4+ Ke5 d4 Rd1 Qc6 Rd2 Qb6 f6+ Kc6 Rd1 Ng2+ Ke6 Bd2 Bd6 Nf4+ Ke7 Rg8 h8Q Kd5 Qh6 Ke4 Qg5 Ra1 h6 Ra3 Qh5 Rg7 Rg8 Qc6 Kf8 Qc7 Be7 Rh7 Rh8 Ke3 Kg8 Ke2 f8N Rf7 Nc5+ Kf2 Nfd7 d3 Ndb6 Kg3 Bf8 Re7 f7 Re3 Be7 Kf2 f8Q Kg3 Be6 Kg2 Bh3+ Kh1 Qf6 Re2 Qf7 Rg2 Kh7 Rg3 Rf8 Be3 Kg8 d2 Re1 d1Q Nd3 Bd2 Re4 N1e2 Rd4 Qa1 Rd8 Nc1
R1q1q3/4K1Q1/rN1B1P1B/2bP1br1/q2Q2qB/pB6/1RPnb1Q1/k1N2n2 w - - 0 1 illegal: No proof kernel
bn1R3N/B2r4/2kqRP1p/Br4Rq/7P/rPNQ4/Kn2Nr1b/2Q2nN1 w - - 0 1 illegal: No possible last move, all moves rejected
R1NKR3/b2N3n/QB2P1Q1/r5rb/Q1nB1p1P/1n6/2nNqPNk/3q1b2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Nc3 Kf5 Nb1 Ke6 Kd2 Kf5 Ke3 Kg4 Kd4 f5 Ke5 c5 Ke6 a5 h4 g5 b4 a4 h6 f4 b6 a3 h7 c4 b7 a2 b5 d4 b6 c3 Bb2 d3 Nf3 d2 e4 c2 e5 c1N Bd4 Nb3 Re1 Nc6 b8Q Kh3 b7 g4 Qa7 g3 b8N g2 Qa6 g1Q Re2 Qg2 Ne1 Qf3 Ng2 Qe4 Qc2 d1B Nd2 Qf3 Qg6 Nf6 Kf7 Rg8 h8Q Qh5 Qa4 Be7 Qh6 Ba6 Ke6 Qe8 d8N Kh2 d7 Nca5 Nf7 Nc4 d8B Nh7 Nd6 Ra7 Nc8 Bc5+ Ne7 Bb5 Bb6 Ra5 Nd7 Qd8 Re3 Qe2 Nc8 Ba6 Qb1 Rg5 Qbg6 Qf1 Kf7 Bh5 Ke6 Qd1 Kf7 Qf6+ Ke8 Qe6+ Kd8 Qeg4 Qhg7 Bb5 Q7f6 Qge2 Qc6 Bd6 Qb7 Bb8 Qa6 Ba7 e6 Nc1 Ra3 Nb3 Rc1 a1N Ra2 Nd6 Rc7 Bc4 Rb7 Nc2 Rb8 Bd3 Ra8 Nc4 Rb2 Nc5 Rb5 Nb3 Rf5 Qe5 Rf8 Bf1 Re8 Qee2
3N1R2/nn4qN/R1b1PQ1n/pr1B4/NQn1Qr1P/BP2Q3/1K3bq1/3k1q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 d4 Kd6 Kd2 a5 Kc3 c5 h4 g5 h6 f5 h7 c4 b6 g4 b7 g3 b3 f3 Rh2 f4 Qc2 f2 Bg2 f1Q Ra4 f3 Qa2 f2 Nh3 Qd7 Kb2 Nc6 Nc3 Nh6 Rb4 Rb8 Rb6 Qg7 Ra6 Bd7 Na4 Be7 Qa1 Rhf8 h8Q Rf4 Ng5 Bf6 Bh1 g2 Qb1 g1Q Nh7 Qg1g2 Qe8 Bd8 Rh3 Bb6 Rf3 Na7 Qc2 Bc6 e5+ Kc7 Qe4 c3+ Ka2 c2 Ba3 c1N+ Kb2 Bc5 Qe3 Bb6 e6 Bc5 Qg6 Kd6 Qge4 Nd3+ Kc2 Rc8 b8Q+ Rc7 Qb4 Rb7 Kc3 Rb5 Kc2 Ne5 Kb2 Nef7 Qc1 Nd8 Qce3 Rg4 Rf8 Rf4 Rg8 Qfg1 Rf8 f1N+ Qc2 Nd2 Qce4 Kc7 d6+ Kb7 d7 Q1f1 Qc4 Kc7 Qcc3 Kd6 Qb4 Nb7 d8N Nc4+ Kc3 Qe7 Q4f3 Qg3 d5 Qg4 Qc1 Ke5 d6 Re4 d7 Qeg7 Nf7+ Kd5+ Qf6 Bf2 Qe3 Qf3 Kc2 Rf4 d8Q+ Bd7 Qb8 Be8 Nd8 Bc6 Qed2+ Ke4 Q8d6 Q3g2 Qd6d4+ Kf3 Q2c3+ Ke2 Qg3 Ne5 Kb2 Qh3 Bd5 Qhg2 Qe4+ Kd1 Qge3 Nc4+
2b2rQb/r3N1n1/R1B1PNP1/1q2Q1p1/BPQ3B1/1b2b2r/1K1nRB2/1q3k2 w - - 0 1 illegal: No proof kernel
1n3q2/4bNq1/1b1P1kN1/1rpP4/1nn2K2/2P1rQ2/Bq3BRB/3BNRQq w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 f5 axb5 Bb7 g4 Bc8 h3 fxg4 Bg2 g3 Bf1 g2 Na3 g5 Nb1 g4 Nf3 g3 Ng1 Bg4 hxg4 Bg7 Qe2 Bh6 Qd1 Bf8 Ke2 Kf7 Kf3 a5 d4 h5 b4 e5 d6 c5 g5 e4+ Kf4 e3 g6+ Kg7 c3 h4 b6 e2 b5 e1B b7 h3 b6 a4 Be2 a3 Be3 a2 Na3 h2 Nc4 Ra7 Nf3 g1N Nce5 g2 Nf7 Nc6 b8B Kf6 b7 Nge7 g7 Rh6 g8B Rh3 Rc1 a1Q Rc2 Bd2 Ne1 Nf3 Rf1 h1Q Qc1 g1Q Bd1 Qa2 Bc7 Qa8 b8Q Qb2 Qb7 Nb8 Qa1 Ne5 Qf3 Ra6 Qd5 Bh6+ Ng5 Nc4 Nd3 Qb5 Re1 Qb6 Be2 Qf1 Kg4 Nb2 f4 Kg6 f5+ Kg7 f6+ Kg6 f7 Nd1 Bd8 Qaa7 Bf4 Ra5 Bh2 Qb2 f8N+ Kg7 Qb7 Rb5 Ng6 Qf8 Ba2 Rf3 Qe4 Nec6 d5 Nb4 Qe3 Qaf7 Qg1 Qf6 Nf7 Bdg5 Rf1 Qe5 Ne1 Ne3+ Kh5 Qd4 Qd1 Nc4 Qd3 Bh4 Bd1 B6g5 Rg2 Qf6 Qe2 Re3 Kg4 Qe5 Qf3 Qf6 Ne7 Qh6 Ng6 Qhh8 Bb6 Bd8 Kf4 Bc7 Ba7 Ba5 Bb6 Qhg8 Bd8 Bb6 Bg5 Qh8 Kf5 Qh7 Bgf4 Bhd8 Bfg3 Be7 Kf4 Kf6 Bf2 Qhg7
n6N/5B2/1RqPN1q1/pPrB1qP1/Q2B4/2nbBqbr/3Q1rk1/QRK5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 b4 f5 g4 h5 b6 c5 b7 h4 b5 f3 g6 f4 g5 f2 g7 c4 Ne2 h3 Bg2 f1R Na3 h2 Nc2 f3 Nf4 f2 Ng6 Na6 b8B+ Nc7 Rb1 Qe8 Ba7 Rh3 Nh8 Ne7 g8B Bf5 Bf7 Rc8 Bb6 Na8 e5+ Kd7 d6 Rc5 d5 Bd3 Bb2 c3+ Kc1 Bg7 Nd4 c2 Ne6 Qg8 Rg1 h1Q Bd4 Qh7 Be4 Qf3 Rh1 Qg6 Be3 Nf5 Bd4 Ne3 Qe1 Nd1 Qb4 Re1 Qa4 f1Q Rh2 Re2 Ba7 Rg3 Rh6 Rh3 Qa1 Rf2 Qa4 Kc8 d7+ Kb7 d8Q Nc3+ Kb2 Qff5 Bf3 Qg2 Kc1 Bf8 Be3 Bd6 Be4 Qgf3 Qa1 Rc4 Bad4 Bb8 Qd6 Rc7 Qb4 Rc5 Qba4 Bc7 Nd8+ Kb6 e6 Bg3 e7 Kc7 e8Q Kd6 Ne6 Rc7 Bb6 Ke5 Qd7 Rc5 Ba7 Qe2 Bh1 Qef3 Bd4+ Ke4 Qd8 Qg2 Qd6 Kf3 Qf4+ Ke2 Qd2+ Kf1 Be3 Qgf3 Bb6 Rc4 Bbd4 Kg1 d6 Rc5 Rh7 Qfh5 Bd5 Qhf3 Rg7 Kh1 Rg8 Kg2 Rb8 Rc8 Kb2 Rc5 Rb6 c1Q+ Kb3 Qd1+ Kb2 Qe2 Kc1 Q3e4 Bb3 Qc6 Bd5+ Qef3
2b1kqBR/2b5/2qpN3/NQ1QnQ2/3R1Bb1/P4n1r/br3PNP/Kr4Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1n3rr1/1k2N1QB/1qbp4/B2Bb1P1/Q3Rq1R/1PQ3PQ/1K1nqnq1/6N1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 f4 h5 c4 e5 Kc2 h4 g3 e4 f6 d6 f5 Kd7 c5 Kc7 c6 e3 f7 e2 f6 e1Q Bc4 h3 Bd2 h2 Ra4 Qde7 Bd5 Q1e5 Nc3 Bg7 f8Q Bb7 f7 Nf6 Qc8+ Kb6 f8Q d3+ Kb3 Rg8 c7 Qf4 Re4 Bc6 Qh3 Kb7 b6 a4+ Ka2 a3 Qa4 Qe8 b3 Qd8 Kb1 a2+ Kb2 Qe7 Be1 d2 Qf7 Bh8 Qg7 d1Q Bd2 Qdf3 Be1 Na6 Bd2 Raf8 Be1 Qf2+ Bd2 Qg2 c8B+ Ka8 Bd7 Kb7 Bf5 Nb8 Bh7 Qc7 Be6 Qe7 Nd5 Qc7 Ne7 a1Q+ Kc2 Qd8 Bd5 Qae5 Kb1 Qe6 Ba5 Qeg4 Ka1 Q4e2 Kb1 Ka6 b7 Qb6 Re6 Ne4 Re5 Nd2+ Kb2 Ka7 Re4 Nd7 Qc3 Be5 b8Q+ Ka6 Qe8 Nb8 Qg6 Ka7 Qg7 Kb7 Nf3 Qf5 Rf1 h1N Ng1 Qf7 Rff4 Nf2 Rh4 Qf4
2r3kN/2B2q1r/2prN3/1n3nBP/1nP3Pq/1RR1b1Nr/QK2b1Q1/1N2R3 w - - 0 1 legal: proof: f4 b5 d4 e5 dxe5 h5 a4 g5 axb5 h4 fxg5 h3 g3 Rh4 Bg2 hxg2 Nh3 Rh7 Ng1 Rh8 Kd2 a5 Kc3 f5 h4 Kf7 b4 d5 e4 a4 e6+ Kg7 b6 d4+ Kb2 f4 c4 c6 b5 d3 b7 f3 h5 d2 b6 f2 e7 f1Q e8N+ Kh7 g6+ Kh6 g7 Kh7 e5 Qe7 e6 Qh4 e7 Qf7 Rh3 Bg4 Nc7 Na6 e8N Rc8 b8R Nb4 b7 Bc5 Ne6 Be2 Nd6 Be3 Qb3 d1R Qa2 Ne7 g4 Nf5 g8Q+ Kh6 Qg5+ Kh7 Qf4 Kg8 Qh2 Rh7 Qh1 Qf8 Nf7 Rd6 Nh8 Qf7 Rg3 Na6 Rf3 Nc7 Qh2 Nb5 Qg3 Bd1 Ne2 g1R Qg2 Rh1 Ng3 Rh3 Bd2 Be2 Bc1 Bg1 Bg5 Ba7 Rb3 Bc5 Ra8 Be3 b8B a3+ Kc2 Rd4 Bc7 Rd6 Rc3 Qd7 Rb8 Qf7 Qb2 a2 Qa3 Na7 Rbb3 Nb5 Kb2 Rb8 Nd2 Rc8 Re1 a1N Nb1 Nc2 Qa2 Nb4
q2B1N1Q/Nr1Rr3/N1pn1P2/3RRbr1/6P1/1P1N1K1b/1r1q3k/Q2Bb1n1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 g4 Kd6 f4 a5 d4 h5 b6 e5 f6 a4 f5 h3 b7 e4 f7 h4 f6 h2 b3 h3 Bb2 e3 Nc3 a3 Kf3 a2 Qc1 e2 Ke3 e1R+ Nce2 Bf5 Bc3 Nc6 b8N Nge7 Kf3 Nc8 Nf4 Ra5 Be2 Rh7 Bd1 Re7 Nge2 Rb5 Re1 h1R Bd2 h2 Ba5 Rg7 Qb1 Rg5 Nd3 Rb7 Na6 Rg1 Qc1 Rg2 Nc3 h1B Re5 Qd7 Rb1 a1Q Rb2 Qa2 Qa1 Qe8 Rb1 Qd2 Bb6 Bh6 f8N Qd8 Rb2 Qe8 Ra2 Qd8 Ra5 Re2+ Kg3 Bg2 Rc5 Bh3 Kf3 N6a7 Rb5 c6 Ra5 Qe8 Bd8 Nb5 Bb6 Rgg7 Nh7 Qa2 Re3 Kd7 d6 Qf8 Re6 Bd2 Bc7 Be1 Re4 Ke8 d7+ Kf7 d8Q Kg6 d5 Qe8 d6 Nd4+ Kf4 Rc2 d7 Nd6 Ree5 Ne2+ Kf3 Rd2 Rad5 Qa5 Ng5 Rb2 Nb5 Qd2 Na7 Kh6 Nh7 Rg6 Nf8 Kg5 Ne6+ Kh4 Qb8 Rgg7 d8R Rg5 Rd7 Qg8 Qf8 Qh8 Qg7 Qa8 Nf8 Qb4 Ke3 Kg3 Bd8 Kh2 Kf3 Qd2 Qh8 Ng1#
n4q2/Qn3B1Q/P1N3Qr/2BK4/1R1Q1N1P/2br3P/1Rb3p1/kqqN1n1q w - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 a5 b4 axb4 g3 f5 exf5 h4 gxh4 Ra7 Ke2 Ra6 Ke1 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 b5 a4 g5 d3 e5 f6 b3 f7 Kb4 d6 c5 a5 g4 d4 c4 f5 b2 d7 c3 h3 g3 f6 c2 d5 Kb3 d6 g2 a6 b4 Bg5 Bg7 f8Q Nh6 f7 Nf5 Qd2 c1Q Be3 Rh6 Qg8 Qf8 d8Q Nd7 Qg5 Nb6 Nc3 b1N Qd4 Kb2 d7 b3 d8N Bd7 Qg6 Ba4 Nc6 Rd8 Bf2 Na8 Nge2 Nd6+ Kd5 e4 Q8h7 e3 Nf4 Nd2 Bc4 e2 Re1 Nf1 Rb1+ Ka3 Nd1 Ka2 Qa7 Bc3 Rb2+ Ka1 Bc5 Nb7+ Ke6 Qg7 f8Q Rd3 Qff6 Qh8 Qd4 Qf8 Rd2 b2 Kd5 b1Q Rb2 Bc2 Rb4 Nd2 Rf1 e1Q Rf2 Qh1 Re2 Nf1 Rd2 Bb3 Rb2 Qbc2 Ke4 Q2b1 Bf7 Ba4 Kd5 Bc2
bbN1qn1K/RN2QB2/P7/rB1n4/P1qRbQ2/5rp1/1PB2nN1/2Bn1k2 w - - 0 1 illegal: No proof kernel
1qB2N2/Q3B1NN/P4Nrb/Pp1b2P1/4nR1r/1r2K2R/nq3B2/Qrk2q2 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 f4 Kd6 d4 b5 a4 c5 g4 h5 f6 e5 g5 h3 f7 c4 a6 h4 a5 c3 f5 e4 f6 c2 Ra2 h2 Ra4 e3 Nh3 Be6 Nd2 Nc6 Nf4 h3 Nh5 Qb8 Ng7 Rh4 Bg2 Nb4 Ne4+ Kd7 d6 Kc6 d7 Kd5 d8Q+ Kc4 d5 Kb3 d6 Bd5 d7 Na2 Kd3 e2 Be3 Kb2 Qe7 e1Q d8B c1Q Qa7 Qf1+ Kd4 Qc2 Be7 Qcf2 Qa1+ Kc2 Ne8 Bh6 f8N Q2e2 f7 Nf6 Nh7 Qef2 Rg1 h1R f8N h2 Bh3 Q2e2 Bf5 Rh3 Bf2 Rb3 Rg2 Rg1 Ng7 h1R Bc8 Rh4 Rg4 Rgh1 Ra3 Rg1 Nd6 Ne4 Rf4 Rgh1 Nde8 Rg1 Qb2+ Kd1 Qc3 Qb2 Ke3 Rgh1 Qc5 Ra7 Nef6 Rc7 Qa7 Rc6 N6d7 Rg6 Ndf6 Rb4 Qe1+ Kc2 Rd3 Rb3 Qa1 Qg2 Rf5 Rb1 Rf3 Qf1 Rh3 Nec3 Rd4 Kc1 Rf4 Ne4#
BB4n1/r2r4/P2bpPQ1/3B1PKR/NRb2Qn1/q4q1N/R2nkb1n/1B6 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 c5 Kf4 b5 a4 h5 d4 h4 g4 b3 g6+ Kf6 a5 b2 a6 b4 g7 b3 d6 c4 d7 c3 d5 h3 d6 h2 Nh3 c2 Qf3 Qc7 d8R Nc6 Nc3 b1N Bd3 b2 Ra2 Ra7 Na4 Ne5 d7 Nd2 Be4 b1Q Ba8 Qb3 Qe4 Bb7 Rb8 Qc6 d8Q Nef3 Qdd3 Qa3 Qdc4 Bc8 Rb4 Rh7 Qed3 Be6 g5+ Kf7 g6+ Kf6 Qce4 Bc4 Kg4 Qd5 Qde3 Qdd3 Q3f4 Qdc3 Bb2 c1B Ba1 Bb2 Qc2 Qd3 Qb1 Be5 Bd4 Rd7 Ba7 Bd6 Bb8 Qdb3 Qg5+ Ke5 f6+ Kd4 Qf4+ Ne4 Qg1 Kd3 Qgg3 Nd2 Qg2 Ne1 Kg5 Ke2 Qgg4+ Qf3 Qgf5 Nh6 g8B Bc5 Bgd5 e6 g7 Bfd6 Qg6 Ng8 Rg1 h1N Rg3 Ne7 g8B Bd4 Bf7 Ng8 Rg4 Rg7 Rh4 Ra7 Be8 Rgd7 Bf7 Nd3 Rh8 Ne5 Rh5 Ng4 Be8 Re7 Bec6 Red7 Be4 Bb6 Bcd5 Ng3 Bb1 Nf1 Qe5+ Qfe3+ f4 Nfh2 Qd4 Qf2 f5 Qff3 Qf4 Bf2
2R2nQ1/5B1P/2R1N1Nn/B1Krb2Q/bR3P2/1qn1QqQ1/p6P/nk1qr3 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 Rh6 gxh5 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 b4 c5+ Kc4 a5 d4 e5 f4 g5 d6 a4 d7 e3 d5 Ke4 b6 e2 d6 e1N b7 a3 h6 a2 b5 g4 b6 g3 h7 g2 Bb2 Nh6 Qc1 Nc2 Bc3 Bg7 Qd1 Re8 Ne2 g1Q Ba5 Qf2 Na3 Ra7 Rc1 Na1 Kb5 c4 Nd4 c3 Qh5 c2 Bc4 Bf6 Be6 Kd3 Bf7 e4 Nc4 Qe7 d8R e3 d7 e2 Rb1 Qee3 Rb4 c1N Ne5+ Kd2 Kc4 e1Q Kb5 Qb3 Rg1 Rg8 Rg6 Qed1 Rf8 Bh8 d8Q Nd7 b8Q Ne2 b7 Kc1 Qb6 Kb1 Rd6 Bg7 Ne6 Nc3+ Kc6 Bf6 Qe3 Rg1 Qa8 Re1 b8Q Rb7 Ng6 Rb5 Qab7 Bh8 Qg3 Rbe5 Q7a7 Rd5 Qae3 Qff3 Rg8 Ba6 Qf8 Bd4 Qg7 Bc4 Rc8 Nf8 Qg8 Be5 Kb6 Bb5 Rdc6 Rd2 Kc5 Ba4 Rd4 Rd3 Rb4 Rd5+
1Nn1B2r/1R1R2qP/3QQ3/2qB1n2/P2Rbrp1/K5P1/nR1b4/n1q2kNN w - - 0 1 illegal: No extended proof kernel
2KR4/1r5P/qR3Q2/1Bn1bbnP/1B1pq1k1/2Pq2N1/n3q1Q1/RrB1B2N w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 a5 Kc5 g5 h4 d5 b4 g4 f4 g3 c3 d3 h6 a4 h7 d2 b6 d4 h5 a3 b5 g2 b7 a2 b6 Na6+ Kc6 e5 b8B e4 b7 e3 Qg4 d1Q Nd2 e2 Nh3 g1N Nf2 e1Q Bb5 Nf3 Qg2 Ra7 Nf1 Qee2 Ng3 Nc5 Rg1 Qa5 Nfh1 Qa6+ Kc7 Bg7 Re1 Qed3 Re8 Ne7 Rg8 Ng5 Rd8 Kf7 f6 Ke6 f7 Nc6 f8Q Nb4 f5+ Ke5 f6 Q1e2 f7 Bf5 Ba3 Kf4 Bc1+ Kg4 Qd6 Re8 f8B Be5 Be7 Qde4 Bf8 Re6 Kc8 Q4d3 Qe7 Qee4 Qf6 Rb6+ Bd7 Qde2 Bc7 Qad3 b8R Rb5 Rb6 Rb7 Bcd6 Nc2 Bh6 Rb1 Bd2 Nb4 Be1 Nf7 Bc1 Ng5 Bf8 Rb3 Rb1 a1Q Bd6 Qa3 Ra1 Rb1 Bf8 Qaa6 Be7 Nce6 Bb5 Na2 Bb4 Nc5+
4b1NR/1K5P/2B2qr1/r1k2P1N/1R1q1Bb1/PQ3Q1R/2pnN1Nb/2r1n2r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 f4 c5 h4 b5 d4 g5 h6 b3 h7 c4 a3 c3 h5 g4 h6 b2 f6 g3 f7 b4 Bb5 b3 Nh3 g2 Bc6 Be7 f8Q g1Q f5 Nd7 Nf4 Ra5 Qf7 c2 Qg4 Ba6 Rh3 Be2 Nc3 b1B Ng2 b2 Bf4 Ba2 Rb1 Bd1 Qg3 Bg4 Ne2 Qf8 Qh5 Qf6 Qf3 Bc4 Qf7 Bb5 Qe6+ Kc7 d6+ Kb6 Kd5 e4 Qf7 Nc5 d7 e3 d8N Nd3 Ne6 Bd6 Ng7 Ne1 Nh5 Be5 Qe7 Qf2 Qb4 Bd6 Qb3 Qg1 Rd1 b1R Rd3 Rc1 Rc3 Rb1 Rc4 Rc1 Rb4 Bb8 Bg5 Bh2 Bf4 Qg7 Kd6 Nf6 d5 Rg8 h8R Qf7 h7 Rg6 Ke5 Qg7 d6 Ne4+ Kd5 Qf6 d7 Nd2 d8N Qf2 Nf7 Q2h4 Nd4 e2 Nh6 Qf2 Ng8 Qg1 Ne6 Qe3 Kd6 Qg1 Kd7 Qc5 Kc8 Qcd4 Nf8 Kc5 Kb7 Rh6 Ng6 Ba4 N6e7 Rg6 Nd5 Bb5 Nc3 Ba4 Be4 Be8 Bd5 Nd3 Be4 e1R Bc6 Rh1 Ne2 Ne1
B2q1B1n/R1q3RP/6pk/P4P1B/1q2r1Q1/b2BKb1b/R1N2N1b/Q1r3n1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 h4 b5 a4 d5 f4 e5 c4 d4 h6 b3 a5 b4 c6 d3+ Ke3 d2 f6 Kg6 c7 e4 f7 b2 c5 b3 h5+ Kh7 c6 g6 Qg4 d1B Ra2 Bf3 Nh3 Ba3 f8R Nd7 Bd3 Ne5 Nf2 Bf5 Bd2 Rc8 Bb4 Bd7 Rf6 Bf5 Bf8 Be6 Nc3 b1Q Ne2 b2 Nd4 Qc2 Rc1 Qc4 Nc2 b1Q Rf5 Qb2 Rb1 Qb8 Rb7 Qb4 Ra7 Q8b7 Rf6 Bf5 Qg3 Bh3 Qg4 Ne7 Rd6 Nf7 Rd7 Rg8 f5 Nh8 Be2 Ra8 c8B Qbc7 Bb7 Rc8 Bg7 Re8 Ba8 Ng8 Bd1 Nf6 Re7 Nd7 Bf8+ Kg8 Rf7 Ne5 Rd7 Re7 h7+ Kf7 h6 Kf6 Kf4 Re6 Rg7 e3+ Nd4 e2 Ke3 e1B Nc2 Be4 Be2 Nf3 Bd1 Ng1 Bf3 Nf7 h8Q Bc3 h7 Be5 Be2 Bh2 Bd1 Qce7 c7 Bf3+ Qe4 Kg5 Be2 Rb8 c8B Kh6 Bca6 Qec7 Bad3 Rc8 Bd1 Rc6 Qg4 Rc4 Qg8 Nh8 Qe6 Qf7 Qf6 R8c5 Qa1 Qfc7 Nd4 Rc1 Nc2 Rc4 Qgd4 Be4 Bh5 Bf3 Qg4 Re4+
1rR4B/q2B1QnP/k1K1Pq2/1b3N1n/2pN1R1Q/8/1nn1Pb1N/1qrQ1Q2 w - - 0 1 illegal: No possible last move, all moves rejected
2krBqQ1/2n3BP/1qP2B2/bN3q2/1n2r3/6PR/bBpqN3/KRR1b1Q1 w - - 0 1 illegal: No proof kernel
k1n2Br1/b1Q1N2P/Pp1R2n1/2B1R2N/Q3K3/BP2rrN1/5qBq/1q1q1b2 w - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Rh7 Qc2 Rh8 Qb2 axb2 Ke2 Kd7 Kd3 c5 h4 Kc7 f4 g5 a4 e5 h6 g4 a5 b6 d6+ Kb7 a6+ Ka7 d7 g3 h7 g2 f6 c4+ Ke4 c3 d4 c2 d5 Bd6 h5 Bc7 d6 Ne7 f7 Re8 f8B Nec6 h8N Re7 f5 Rg7 h6 Rf7 f6 Ne7 h7 Ng6 Ne2 g1Q Bg2 Nc6 Rh6 Bb8 Nbc3 b1Q Ba3 Qh2 Nd5 Nce7 Ng3 Bb7 Bc5 Nc8 Ra5 Bc6 Be7 Bb5 Nf4 Bf1 Nfh5 Qf8 d8Q c1Q+ Kf3 Qd2 d7 Qdd1+ Ke3 e4 Qe8 Qh4 d8Q Qh2 Bed6 Rd7 Be7 Rd2 Qa4 Rd3+ Kf2 Qf7 Ba3 Qf8 Re5 Qf7 Bec5 Qf8 Ne2 e3+ Kf3 Qf7 Ke4 Qf8 Ng1 e2 f7 e1R+ Ne2 Qh4+ Kf5 Qh2 Neg3 Ree3 Qd6 Rf3+ Ke4 Qd8 f8B Qf6 Rd5 Qfb2 Re5 Qf2 Qdc6 Nh4 Rhe6 Ng6 Rd6 Nce7 Nf7 Bc7 Bh6 Rg8 Nd8 Nc8 Bf8 Bb8 Qc7+ Ka8 Nc6 Ba7 Ne7 Rde3#
1kNbqNB1/4n2p/bP2r3/3QPRKb/2B1P3/1r1N1Qn1/B3qR2/1n2b1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 c4 d5 g4 Kd7 e4 Kc7 b4 f5 b6+ Kb7 g6 f4 b5 a4 g7 a3 c5 d3 g5 f3 Ke3 a2 Kf4 f2 g6 d4 Nh3 d2 Ng5 d3 Na3 Nd7 c6+ Kb8 b7 Qb6 Ne6 Qd8 Nc2 Be7 Nf8 Ra3 Ne1 Qe8 Rh5 Rb3 Qf3 d1B Rf5 d2 Nd3 Ndf6 Kg5 Bd8 Be2 Ne7 g8B f1Q g7 Nh5 c7+ Ka7 Rb1 a1B Rb2 Ng3 Bf7 Qg2 g8B Qf2 Bf1 Qe2 Rc2 Bd4 Bb2 Bc5 Bd4 Bb6 Bg1 Bf2 Nc5 Be1 Nd3+ Qf2 Bc4 Be2 Bcd5 d1N Bdf7 Nc3 b6+ Ka6 b8Q Nb1 Rd2 Bb7 c8N Qg2 Qf4 Bh5 Qf3 Qf2 Qd6 Qe2 Na7 Bc8 Qd4 Kb7 Qd5+ Kb8 Rc2 Qd1 Rf2 Ba6 Nc8 Qe2 Qd7 Rb5 Ba2 Rb2 Qd5 Rb3 Nc5 Qc2 Bc4 Qb2 Nd3 Qe2 Bf7 Rg8+ Ng6 Rf8 Bg8 Rf6 Nf8 Re6
1R5K/1qqq1BP1/2kn1r1P/1n1np1q1/3b2R1/3b1PBQ/3N1Rr1/Q2N2RQ w - - 0 1 illegal: No proof kernel
K7/B1Q3P1/2Pn3k/1Q1qr1N1/3P1R1B/1Bbqn2b/1q2rp1R/B2NN1qn w - - 0 1 illegal: No proof kernel
bB1Rb3/b4P2/qqn4N/PPnB2N1/QB2NR1K/nr5r/4pN2/k3n1Q1 w - - 0 1 illegal: No proof kernel
1b1N4/QB1B1Pk1/3K2p1/rP3R1n/bRr1R2P/1Nqnb3/2Qq4/1rB2Rr1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b6 Kf7 Bg5 a5 Ke2 e5 Kd3 d5 f4 a4 b4 g6 c4 a3 h4 a2 f6 Ra6 f5 Ra5 b5 Qc7 b7 Qe7 c5 Qc7 c6 Nd7 b8Q Bh6 Bh3 Rh7 Nd2 Kf8 Rb1 a1B Qa7 e4+ Kc2 d3+ Kb3 d4 Kc4 e3 Kd5 e2 Ngf3 e1R Rb4 Bb2 Ne5 Nc5 Nf7 Bb7 Qe2 Rb1 Nd8 Bc1 Be3 Bf4 h6 Qg7 Bg2 Bb8 Bg5 Bc8 c7 Be6+ Kd6 Bb3 Bb7 Ba4 Nb3 d2 Qc4 d1Q Qc2 d3 Bf4 Bb2 Bc1 d2 Re1 Qh8 Ree4 Rg7 h7 Nd3 Ba8 Re7 Bb7 Qg7 h8R Bd4 Rh5 Be3 Rg5 Qe2 Rh5 d1R Rg5 Rh1 Rg1 Qd2 Rf1 Qh8 f7 Kg7 f8R Kh7 f6 Rg1 Kd5 Rf7 c8B Rc7 Kd6 Qg7 Rfe8 Kh6 f7 Qgc3 Be6 Nf6 Bd7 Kg7 R8e5 Nh5 Ref5 Rc4+
N2qb1r1/1Q1bP3/r6n/kB3NB1/3Ppq1n/1R5b/3bPnNK/1Q2RQN1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 d5 c4 gxh4 cxd5 e4 Ra6 Qe7 Ra1 Qe5 fxe5 Ba6 Rh2 Bb7 Rh1 Bc8 Kf2 Kd8 g4 h5 Kg2 f5 b4 c5 d4 Kc7 d6+ Kb6 e6 a5 d7 a4 d8N c4 g5 a3 e7 h3+ Kh2 f4 g6 c3 g7 f3 Qb3 h4 Nc6 c2 Na5 a2 Qf7 f2 Na3 Nh6 g8N Bd7 Bg5 c1Q Rb1 a1Q Nc2 Ra6 Rb3 Nc6 Ne3 Ne5 Ng2 Ng6 Qf4 Qc8 Qf7 Qd8 Nc4+ Kb7 b6 Qc1 b5 Be8 Nf6 Rg8 Nh5 Qf4+ Ng3 Bg7 Qf5 Be5 Qf8 Bd6 Qf6 Bb4 Qf7 Bd2 Qf6 Kc8 b7+ Kc7 Qf7 Bd7 b6+ Kc6 b8Q Be8 Re3 Kb5 b7 Ka4 Nb6+ Ka5 Rb3 Bd7 Ne3 Be8 Bg2 f1B Bf3 Bg2 Bh5 Bf3 Ng2 Bg4 Na8 Bgd7 Nf3 Ka4 Re1 Ka5 Kh1 h2 Ng1 Qfc7 Nf5 Qd6 Nge3 Qf4 Kg2 h1N Qf8 Qf1+ Kh2 h3 Ng2 Nh4 Qc8 Qf3 b8Q Nf2 Bf7 Qe3 Bc4 Qf3 Bb5 Qg4 Ng7 Qf5 Qcb7 Qf6 Kg3 h2 Nf5 h1B Kh2 Qf7 Qg3 Qf6 Qd3 Qf7 Qb1 Qf6 Nge3 Bg2 Qf7 Bh3 Ng2 Qe5+ Ng3 Nd3 Qf1 Qf6 Nf5 Nf2 Ng3 Qf3 Nf5 Qf4+
2r2K1Q/bNn1PR1b/1q3r1n/1Rq2P1n/NrNQ1p1n/2P1B3/3R3N/kB6 w - - 0 1 illegal: No proof kernel
3BR3/Rb2Pn2/Bbr2Q2/4PN1Q/1kbb1P1R/1B2r1r1/q1q2Np1/3B1nK1 w - - 0 1 illegal: No proof kernel
2B2RKb/rQ1NP2Q/4BBrr/q3pN2/2b2N2/1Pn2BP1/rk5q/R1n1n3 w - - 0 1 illegal: No proof kernel
BrQ3R1/1b2PQK1/5rn1/P2P1B2/2R3q1/q1pN1Q1q/kbr3Q1/r1B1nN2 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d6 Kd7 Kf2 Kc6 Ke3 Kd5 Kf4 Kc4 d4 f5 h4 c5 a4 b5 h6 b3 e4+ Kb4 Ra3 c4 d5 c3 e6 g5+ Ke5 g4 h7 b2 d7 f4 a5 f3 h5 g3 h6 g2 Nh3 g1Q Nf2 Ra7 Nd2 b1R Bh3 Ne7 Kf6 Na6 e5 Rb2 Qe2 Qb6 d8Q Qc5 Qe8 Rc2 Qf7 Bb7 Ra2 Qd1 Rg1 Ra8 Rg7 Rb8 Qf1 Rg8 h8Q Qd6 h7 Nc5 Rb2+ Ka3 Rb4+ Ka2 Rc4 Nd3 Rg6 b4 Bf5 Ne1 Nd3 Rc8 Qg1 Rc6 Qg5 f2 Rg7 f1Q Qgg6 Qg1 Nf1 b3 Qg3 Qh5 Qf3 b2 Rg5 Ng6 Rgg4 Nf4 Rg3 Qb4 Rg6 Bd6 e7 b1R e8B Ba8 e6 Qgg4 Bd7 Rb6 Bc6 Rgb8 Qc8 Ra1 Rg8 Ng6 h8Q Qb2 e7 Ba3 Qh6 Qh1 Qhf4 Qhh3 Q4g3 Qb3 Qgf2 Bb2 Kg7 Qa3 Bb7 Rf6 Bc6 Bb7 Q2g2 Ba6 Ba8 Bb7
b3R2b/4PBnQ/2rp4/Q2N4/1R1B1N1P/2RPr1R1/K1qkn1n1/B1n2bq1 w - - 0 1 illegal: No possible last move, all moves rejected
B4q2/BB2P3/1p2q3/1rk2P1P/1q1n3B/2NnRRb1/2QK1rbb/QR2Nq2 w - - 0 1 illegal: No proof kernel
1NR1b1Qr/BK1QP1n1/P1N1n2k/1bNB1q2/5RnB/N1P3r1/1p4n1/2b1q3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 g5 Kd3 b5 Kd4 f5 Kd5 Kf7 h4 Kg7 a4 g4 e4 d6 c3 g3 a5 g2 c6 f4 e6 b3 e5 b4 c7 f3 Be3 f2 Bc4 f1Q Nh3 g1N Ng5 Ba6 Ne4 Rh7 c8N Nd7 Kc6 d5 Na7 d4 Ra4 d3 Na3 d2 h6+ Kg6 Rh3 Rg7 h7 Qe1 h8B Nc5 h5+ Kh7 h6 Qd7+ Kb6 Rg3 Bf6 Ne2 Bd4 Kg6 h7 Nf4 h8Q Ne7 Rh7 Nf5 Bh4 Qc8 Rc7 Bh6 Qg4+ Bg5 Bd5 d1N Rc6 Bd3 a6 b2 Rc7 b1B Nc6 Qd7 Be3 Rf8 Rc8 b3 Rd4 b2 Qh3 Rf6 Qg8+ Ng7 Bf2 Ne3 Ra4 Qf7 Qg4 Nd7+ Kb7 Neg2 Ba7 Rf5 Nc5 Nf6+ e7 Qe6 e8N Bb5 Be4 Qd5 Qd1 Ng4 e6 B1d3 e7 Ne6 Rc4 Bc1 Nf6 Bb1 Bf3 Rh5 Rf4 Rh8 Nfd7 Kh6 Nb8 Bg6 Be4 Qf5 Qd7 Bh5 Bd5 Be8
Nb2N2q/4Pqp1/1rBP4/2QR4/1rK5/1rPBB1kb/rR6/B1nQRq1n w - - 0 1 illegal: No proof kernel
N2R2b1/kr2p2P/1qQP4/3nB1B1/2qQNr2/1b4P1/bKBb1Bq1/R4n1N w - - 0 1 illegal: No proof kernel
kb2BN2/1q1P3b/2bBBp2/1BQPbPr1/q2R1q2/5RR1/1nKQ3N/r6n w - - 0 1 legal: proof: e4 b5 h4 c5 b4 d5 bxc5 g5 exd5 gxh4 a4 Bg4 axb5 Bc8 d4 Kd7 Kd2 Kc7 c4 Kb7 g4 e5 f4 a5 d6 h5 g5 a4 g6 f6 d7 e4 b6 e3+ Kc2 h3 g7 h2 Nc3 e2 Nf3 e1B Ra3 h4 Ne2 h3 Qd2 Na6 Rg1 h1Q Rg3 Bd6 Nh2 Nh6 g8B Bb8 Be6 Rg8 Raf3 Qc7 Ba3 Rg5 f5 Qf4 Bf7 Ng4 Be8 Nf2 Bb4 Ra7 c6+ Ka8 c7 a3 c5 a2 c6 a1Q Bd6 Bb7 c8Q Nc5 Qc7 Na4 Qc8 Nb2 Qc7 Qe5 Nf4 Ba6 Be2 Bc4 Ne6 Qf4 Nf8 Bg8 Bb5 Bh7 Qc8 Qg2 Qc7 Nh1 Qc8 Ra2 b7+ Ka7 Bb4 Be5 b8R Ra6 Rb6 Qa3 Qc7+ Ka8 Bd6 Qb4 Rb7 Ra1 Qb6 Bf2 Qc5 Qa5 c7 Be1 c8B Qa7 Bc4 Qa4+ Bb3 Bf2 Rb4 Be3 Ba6 Bg1 Rc3 Qb7 Bb5 Bf2 Rcf3 Be3 Nf1 h2 Rc4 Nf2 Rb4 h1B Nh2 Bg2 Rc4 Nh1 Rb4 Qa2 Be6 Qa4+ Rb3 Bg1 Rd3 Bc6 d5 Bgd4 Rgf3 Bc3 Rd4 Ba5 Rg3 Bc7 Rf3 Bb8 Rg3 Qa3 Rbf3 Qa4+
NnR3Nr/b1nPrkP1/qr3qbP/3N2Q1/pQ1B1K2/2RBR3/1R6/b3b3 w - - 0 1 illegal: No proof kernel
2R1n3/1Q1PP3/p1b1RB1n/1N1qQ2P/1q3Kn1/1b3B1r/2kBr2n/QN2Q1b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 h4 Kd4 b4 c5 b6 g5 d6 f5 e5 g4+ Ke2 a6 b5 f3+ Kf2 f4 b7 c4 d7 c3 b6 c2 e6 Nh6 Bg2 Kd3 Ne2 Bc5+ Nd4 Qg5 d8Q Qd5 Qe7 Bd7 Re1 Bc6 Re5 Nd7 b8Q Rh7 b7 Nf6 Re1 Ba7 Qe5 Ne8 b8Q Bb6 Qbb7 g3+ Kf1 f2 Nb5 Rh8 Bf3 Rd8 Kg2 f1N Q7f6 Nh2 e7 N2g4 Re2 Rb8 Qe1 Bg1 Ra4 Rd8 Rc4 Rd7 Kh3 g2 Qa1 Rd8 Re6 Rc8 Qfe5 Rh7 Bb2 c1Q Bc3 Kc2 d4 Qb2 Rc5 Qb4 Bd2+ Qdc4 d5 Rc7 Be2 f3 Kg3 f2 d6 f1B Bf3 Be2 d7 Bd1 N1c3 Qd5 Nb1+ Kd3 Rc4 Bb3 Kf4 Rh8 Rd4+ Kc2 Re4 Nf5 h6 Rc8 h7 Nfh6 Qf1 Ba7 Qe1 g1N Bh1 Nf3 Rc4+ Qc3 Bg2 Nfh2 Bf3 Bg1 Rc5 Rg8 h8B Rg6 Rd6 Re6 h5 Rb8 Bf6 Qcc4+ Qed4 Re3 Re6 Re2 N5c3 Qb4 Rc4 Bca4 Rc8 Bc6 Nb5 Nd6 Rc7 Rg8 Rc8 Ne8 Qf2 Rg5 Qf1 Rge5 Qe1 R5e3 Be4+ Rd3 Qe5 Qbd6 Bh1 Rh3 Bf3 Qb4+
B1N5/3pR3/RRNq3Q/1n2bqr1/7K/3Pq1B1/1n1NkqPP/Q1R1bb1r w - - 0 1 illegal: No proof kernel
bb3R1B/BqnpQ1P1/3Rqq2/nNK5/rPP1qQ2/1B1rN3/BQ6/4n1k1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 h5 Kc4 a5 b4 e5 g4 h4 f4 d3 g6+ Kf6 g7 a4 b6 e4 b7 a3 Nf3 e3 Qe2 d2 Ne1 d1Q Nc3 a2 Nb5 h3 Ng2 Na6 b8B h2 Ba7 Bd6 Bb2+ Be5 c3 Qe1 Rd1 Ne7 g8B Nc7 Kc5 a1N Ba2 Nc2 c4 Rh3 g5+ Kg7 f6+ Kg6 f7 Kf5 f8Q+ Ke4 f5 Bb7 f6 Nc6 g6 Na5 f7 Qf6 Qf2 e2 Qe7 Rd3 f8Q Bd5 Rg1 h1Q Ne3 Bc6 Qh2 Kf3 Bh3 Qg2 Bf5 Kf2 Qfg7 Be4 Qf4+ Qf3 Rh1 Bc6 Rh7 Kg1 Rh8 Bb7 Rd2 Qeh4 Rd1+ e1Q Rf8 Qe4 Bg4 Qhh1 Rd2 Qhg2 Bd1 Qee2 Qh8 Ne1 Bdb3 Qeg4 Bc3 Qge6 Qhg7 Ne8 Qh8 Bb8 Qhg7 Nc7 Bb2 Rc3 Rd6 Rd3 Ba1 Qff7 Qb2 Qff6 Bb6 Ra6 Ba7 Ba8 Qa3 Qh4 Bh8 Qhf6 g7 Qb7 Qc1 Qge4 Qa3 Nc6 Qc1 Ra4 Qb2 Na5
K2Q2R1/2Pr1NB1/q3N2n/k2P3Q/rpq4B/bR2bq2/5PbN/1bN1n2B w - - 0 1 illegal: No proof kernel
b7/2PQ1qk1/qr3Rp1/3Bn2q/1PnrRK1P/N1B1QBRq/2r2R1b/N7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 d5 Kf3 f5 e4 Kf7 b4 a5 c4 d3 h4 d4 h6 g6 e6+ Kf6 h7 f4 b6 a4 b7 a3 c5 a2 e7 d2 e8R d3 e5+ Kf7 c6 Be7 e6+ Kg7 c7 Nh6 Na3 Nd7 b8Q Nf5 Bg2 Nd6 Qb6 Nc4 Rh3 Bd6 Rg3 Qe7 Qe3 Qf7 e7 Bb7+ Kg4 f3 Ne2 f2 Nd4 f1Q Bb2 Ra6 Bd5 Ba8 Bc3 Rc6 Ndc2+ Nde5+ Kg5 Rf8 h8R Qh3 Rc1 Ra6 Na1 Rb6 Qa4 d1R Qd7 d2 Rc2 Rc1 Rb2 d1Q Rf2 Rg8 Rf6 Rc2 Kf4 Qe2 Rf8 Qh5 e8B Qe7 Bef7 Qe8 Bfe6+ Qf7 Re8 Rf8 Bg4 Rg8 Re7 Re8 Bgf3 Rd8 Nb3 a1Q Rf8 Qb1 Na1 Qa2 Nb5 Qa6 Na3 Bc5 Qe4 Bg1 Qe3 Bh2 Ree8 Ng4 Re4 Nge5 Bg2 Qa5 Qe7 Rb5 Rf5 Rd7 Be6 Rd4 Rd8 Bb7 Rf6 Ba8 Bf3 Rd1 Rd2 Rb7 Qd7 Rb6 Bd5 Qa6 Rf2 Rd4
3b1BN1/R1PRrr1Q/Rpb4B/Pq3q2/1Q1P1nNn/2r3kq/2B3q1/1K5R w - - 0 1 illegal: No proof kernel
3BbNb1/1qPQNnRp/rq1QB3/2P1N1NK/2B2P2/R7/3bnrq1/3k3b w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 b4 e5 g3 a5 c6 d5 c5 d4 b6 d3 b7 a4 b5 d2 b6 a3 f3+ Ke3 Qa4 a2 Bc4 h3 Na3 h2 Kh5 e4 g4 Bh6 g5 Bd7 g6 Be8 f6 Ra6 f7 Qd6 c7 Nc6 f8N Nd4 b8Q Ne2 b7 Qb6 Qd7 Bf4 Be6 Nh6 Nh3 Nf7 Rg1 h1B g7 Bg5 Bb2 d1B g8B Bb3 Qbd8 Bc4 Bd4+ Kd2 b8N e3 Bf6+ Bd5 Nc6 Bh6 Rac1 a1Q Rc3 Qab2 Rg7 Kd1 Nc4 Qb7 Bh4 Q2b6 Ra3 Nc1 Ng6 e2 Q8e7 Nd8 Bg4 e1Q Qed6 Qe4 N4e5 Be3 Be7 Bf4 Ng5 Bd2 Bh3 Qe2 Bf1 Qg2 Bc4 Be6 Bf7 Rf8 Bg8 Rf7 Nf8 Rf4+ Bf7 Re4 f4 Re2 Neg6 Rf2 Nce5 Ne2 Bf6 Bh3 Bfd5 Be6 Be7 Bg8 Be6 Nf7 Bd8 Rf1 Ne7 Rf2
6r1/1P4r1/2nNQ2b/2b1pq1N/PP2B1k1/QR2Rq1r/KBb2R1R/2n2b1N w - - 0 1 illegal: No proof kernel
3k4/1PRqrb1R/1n2PbB1/B3n3/b1q2qP1/1QN1QNrK/3R1p2/Bb4B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 g4 h5 Kg2 a5 b4 f5 d4 a4 e4 h4 d6 h3+ Kh2 c4 g6 c3 g7 c2 e5 f3 d5 a3 b6 f4 b7 f2 b5 a2 b6 f3 Qd4 Nf6 g8R Ra7 Qb4 Nfd7 Bd3 f1B Bb2 c1Q Nc3 f2 Qb3 Nc6 Rg7 Be7 b8B Bf6 Nf3 Qe7 Be4 Bc4 Bg6+ Kd8 Rf7 Qh6 Rad1 a1Q Rd2 Qc1 Ba1 Qe3 Kg3 h2 Rh7 Rc7 b7 Nb6 d7 Qf4+ Kh3 Qe6 Re1 h1B Re4 Bd3 Rc4 Bb1 Rc5 Qf7 e6 Ne5 Ne1 Bhe4 Nf3 Bed3 Rc6 Bb5 Rc5 Ba4 Rc6 Ke7 d8B+ Ke8 d6 Re7 Rc7 Bcd7 Nb5 Qcc4 Qe3 Kf8 Nc3 Be8 d7 Qg7 Rc8 Bf7 Rc6 Na8 Ba5 Nb6 d8Q+ Be8 Qd6 Bf7 Qa3 Ke8 Bd6 Kd8 Rc7 Bh4 Rh5 Bf6 Qb3 Qh7 Bc2 Qhd3 Rh7 Qdd5 Be4 Qdc6 Bd3 Qd7 Bg6 Qfd4 Rh4 Nc6 Bh2 Ne5 Kg2 Qf4 Bg1 Rh5 Rh1 Rh3 Nd4 Rf3 Rh7 Rg3+ Kh2 Rg2+ Kh3 Qf5 Nf3 Qfe4 Bf5 Qf4 Bg6 Rg3+
Rrr4R/P4Q2/n3n3/q1B1PB2/k1PRRQK1/p6N/1bb4n/1nqq1N1B w - - 0 1 illegal: No proof kernel
B5Qn/P1bq4/r1b1Nn2/1Pr1qQR1/1rp3R1/2kPKQB1/2bRb1N1/6R1 w - - 0 1 illegal: No proof kernel
BRn2R2/P1PR1K2/bq2n1Q1/2qN1N1r/5Q2/3r2q1/1PBpq3/BB1bb1k1 w - - 0 1 illegal: Other
2n1rqk1/pBP3n1/4b1R1/P4Q1r/BN1P1qNn/1b1Q2n1/B2Bb1KN/6R1 w - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 c5 bxc5 Bg7 Bd3 Bh6 Bf1 Bf8 h4 e6 g4 Bg7 g6 Ke7 h5 Nd7 h6 Kf8 hxg7+ Ke8 g5 Nb8 Kf2 h5 a4 f5 c4 b5 d4 b4 a5 b3 c6 f4 c5 e5 c7 e3+ Kf3 b2 c6 e2 Ra2 e1N+ Kf2 e4 Bg2 e3+ Kf1 h4 Qb3 e2+ Kf2 h3 Ra1 f3 Bd2 h2 Qd3 Rh5 Na3 b1B Nc2 Be6 c8Q Nh6 g8N Kf8 c7 Nd7 Nb4 Nf5 Nf6 Nb6 Ng4 Bc2 g7+ Kg8 Rc1 Ba4 Rc6 Qf8 Qd7 Nc8 Rd6 Beb3 Rg6 Be6 Q7b5 Bab3 Qd5 Nfd6 Q5f5 Ne8 Kg3 f2 Nf3 Rb8 Rg1 f1N+ Kf2 h1B Nfh2 Ng3 Ba8 Bhd5 Bb7 Nf3 Kg2 e1Q Ba6 Qc1 Bb7 Kh7 g8B+ Kh8 Bf7 Ng7 Be8 Bdc4 Ba4 Kh7 Rf6+ Kg8 g6 Ne8 g7 Ba6 Be1 Qf4 Rg6 Bac4 Qb1 Be2 Qbd3 Kh7 g8B+ Kh8 Bf7 Ng7 Bd2 Kh7 Bfe8 Kg8 Bed7 Nd6 Bdc6 Re8 Bd5 Nc8 Bc4 Bbd1 Ba2 Bc2 Bac6 Bcb3 Ba4 Nh4+
2R5/BPQNN1rr/r4r1B/n1b5/p4r2/1NPb2rB/B5nP/1RQK1kq1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 Ke7 e4 Ke6 h6 a5 c3 g5 b6 f5 b7 d5 h7 a4 b5 g4 b6 g3 Ne2 f4 Ra3 g2 Ng3 g1R Nh5 d3 Qf3 d4 Bb2 d2+ Kd1 Rg3 Bc1 Ne7 Rb3 Nd5 Qe3 f3 Nf6 f2 Nd7 Nc6 b8B Ba6 Ba7 Bc5 b7 Rg7 Rb4 Nf4 Rc4 Qg8 Qg3 Na5 Bh3+ Rg4 Rg1 f1R+ Qe1 Qg7 Rh1 Rhf8 h8N Rf6 Ng6 Ng2 Ne7 R1f4 Qe3 Rh8 Re1 Rh7 Qg1 Bd6 Rc8 Bd3 Qf1 Bc5 Qg1 Qg5 Rf1 Kf7 e6+ Kg7 e5 Kh6 Re1 Kh5 Qh1 Kh4 Rf1 Ne1 Qc6 Rg2 Qc7 Rg3 Nf5+ Kh5 e7 Rff3 e6 Bc2+ Ke2 Rg4 Rg8 d1R Rc8 Rdd3 e8B+ Qg6 Bg5 Rff4 e7 Rg1 Bg2 Kg4 Nd2 Qg8 Be4 Kh3 Bf7 Rdf3 e8Q Kg2 Ba2 Qg6 Nb3 d3+ Kd2 Qg7 Kc1 d2+ Kb2 d1R Bh6 Rd4 Kc1 Bd3 Qh5 Qg3 Ne7 Rdd6 Bf5 Re3 Qd1 Ra6 Nc6 Ree7 Kd2 Reg7 Ne7 Nc2 Re1 Ne3 Bh3+ Kf2 Qb1 Qg2 Rc1 Qh1 Qc2 R1g3 Rb1 Qg1 Qc1 Ng2 Be6 Ne1 Kd1 Kf1 Bh3+ Ng2
1r3RB1/BqQ5/B1Nb3R/KPn1b1R1/6Qp/P3k1r1/1RbnP3/N1b2r1r w - - 0 1 illegal: No proof kernel
1rrb1bkr/BR6/3n2N1/p4PN1/2RnQ2P/2rQ2bB/1K5P/1qNb1BN1 w - - 0 1 illegal: No possible last move, all moves rejected
2QR2n1/R1N1q1r1/bNrP1Q1b/2B3NB/2R2PnR/3p4/3kPb1K/4nb1n w - - 0 1 illegal: No proof kernel
2b3rQ/2B3N1/2BP3b/1b3P1R/qrk1NRpn/3n2Q1/b5P1/rRrN2KN w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 g4 Bd3 Qd6 Be2 Qf4 Bf1 Qg5 hxg5 Kd8 Rh3 Kd7 Rh1 Ke8 f4 Kd7 Kf2 Kd6 d4 h5 a4 e5 a5 b5 f6 c5 f5 b3 g6 e4 f7 h4 a6 c4 a7 e3+ Ke1 b2 g7 e2 Kf2 e1R Ne2 h3 Ng3 b4 Qd3 h2 Nc3 b1B Nd1 Nc6 Bf4+ Ne5 Qb3 c3 Bb5 c2 Bc6 Rb8 a8R c1R R8a4 Ba2 Rb1 Ne7 g8N Bh6 f8N Rb6 Ne6 Ng6 Nf6 Rg8 Ng7 Nh4 Qf3 b3 Nfe4+ Ke7 Rc4 b2 Qd3 Rb4 d6+ Kf7 d7 Ke7 d5 Rg1 Nd2 Kd6 Rd4 Kc5 d8Q Bc4 Qf6 Bb5 Qa3 Nc4 Bc7 Ne5 Rf4 Re1 Nde4+ Kc4 d6 Rg1 Ra1 b1B Qe3 Ba2 Rb1 Bg5 Qh6 Re1 Qh8 Bh6 Rg1 h1Q Qf3 Qh3 Nh1 Qh2 Rf1 Qh3 Kg1 Qg3 Qf2 Qa3 Qg3 Nd3 Qh2 Re2 R1f3 Re3 Rh3 Qa4 Qg3 Re2 Rb3 Ra1 Rb1 Rc2 Rh2 Rc1 Rh3 Ng6 Rh5 Nh4
RN3nbb/1RnRP3/P2B2kr/1q4n1/b1B1b3/1PK4R/1rQnQQ1p/3N4 w - - 0 1 illegal: No proof kernel
B4N2/1bp1Br1P/2qn1R1b/8/PQ2RNPn/4K3/br2N2N/Qr2rQbk w - - 0 1 illegal: No possible last move, all moves rejected
rq1nQ2b/rP5Q/1N6/1R1PpB1N/b1nnP1Q1/B2k2K1/Q5n1/Nr1r2R1 w - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 Kf2 Kd7 d4 Kd6 b4 a5 e4 e5 h4 f5 h5 c5 b6 a4 g6 f4 g7 f3 b7 c4 b5 g3+ Ke3 a3 b6 f2 Kf3 a2 h6 g2 h7 c3 Nd2 c2 Nh3 g1R Nb3 Ra7 Nf4 Nc6 b8N Nge7 g8Q Nf5 b7 Ne3 Rb1 a1N Bh3 f1N Nd7 Bg7 Bf5 Ng2 Nh5 Nd2+ Kg3 Nc4 Qg4 Rd1 Nb6 Bd7 Rg1 Qb8 Qe8 Rg8 h8Q Nd8 Qh7 Bh8 Bb2 c1R Ba3+ Kc7 d6+ Kc6 d5+ Kb5 Rb2 Nc2 Rb1 Bc6 d7 Nd4 Rb2 Rb1 Na1+ Ka5 Rb3 Ba4 Rb4 N8c6 d8Q Ka6 Qdg5 Nd8 Rb5 Rf8 Rc5 Rg8 Qd2 Rf8 Rc6 Kb5 Qa2 Rg8 Bb2 Kb4 Ba3+ Kc3 Rc5 Kd3 Rb5 Rg6 Nc8 Rga6 Nb6 Ra8 Qed7 Ra5 Qe8 R5a7
Q2r1b2/p1r4k/R1q1BQ2/P4n1r/1Bn4R/1NbrPR2/K2BNPnn/3B4 w - - 0 1 legal: proof: g4 f5 d4 g5 b4 e5 h3 c5 bxc5 exd4 Ba3 b6 Bb2 Bb7 Bc1 Bf3 gxf5 g4 Bd2 g3 Bc1 Bg4 hxg4 Bd6 Bb2 Be7 Bc1 Bf8 Kd2 Kf7 a4 Kg7 c4 h5 Kc2 d5 Kb3 d3 c6 d4 c7 b5 c8Q d2 c5 b4 c6 h4 f6+ Kh7 c7 g2 f7 h3 a5 d3 g5 h2 Qh3+ Nh6 c8R Qc7 Qd7 Qc6 Qc2 d1R Qg4 Nd7 Qh4 Ne5 Ka2 Nf3 Nd2 Rg8 Qb1 Rg7 Nb3 Rb8 Qd4 Nf5 Qf6 d2 Qe4 Ra8 Rc7 Rd8 Rb7 Rd3 Rb6 Rd8 Ra6 Rd3 Kb2 Rd8 Ra3 Rd3 Nc5 b3 Ka1 b2+ Ka2 b1N Nb3 Rd8 Qe8 Rd3 Qa8 Rd8 Ra4 Na3 Rf4 Nc4 g6+ Kh6 Qc3 Rh7 g7 Kg6 Qa1 Rh5 Qf6+ Kh7 Ba3 Rc1 Bb4 d1N Bd2 Nde3 Rh4 Rc3 Rh3 Rcd3 Rg3 Nd5 e3 Nf4 Rh3 N5d4 Ne2 Nf5 Rg1 h1R Rh4 Rh3 Rh1 Rg3 R1h3 g1B Bg2 Nh2 Bf3 Rg6 Bg4 Ng2 Rf3 Bb4 f8B Bc3 Bb4 Rgh6 Qd4 Rhd6 Qe5 R6d7 Qe7 Rc7 g8B+ Kg6 Bf7+ Kh7 Qf8 Nf1 Qe7 Bh2 Qf6 Bd6 Be6 Nh2 Bd5 Ne7 Bge6 Nf5 Be4 Rd4 Bc2 Bf8 Bd1 Rd3
2b3Nn/5pBQ/1RB2P2/1N1r2R1/3Qq2r/P3n3/Pn1N1Rnr/k2nRqK1 w - - 0 1 legal: proof: e4 d5 exd5 a5 h4 g5 d4 gxh4 c4 a4 c5 a3 bxa3 Bg7 Bh6 Be5 Bc1 Bd6 cxd6 Ra5 Nc3 Ra4 Nb1 Ra8 f4 Kd7 Kf2 h5 g4 c5 f5 b5 g5 e5 f6 b4 g6 c4 g7 h3 Qf3 c3 Qg3 h4 Nd2 b3 Rb1 c2 Ndf3 b2 Nh2 e4 Ngf3 e3+ Kg1 e2 Qf4 e1N Qg5 Na6 Be3 c1N Be2 Qe7 Kf2 Nb4 Qh6 Ng2 Nf1 h2 Bc4 Ra5 Bb5+ Nc6 Bf4 h3 N1d2 Qe5 Re1 h1Q Qg6 Ne7 Bh6 Nf5 g8N h2 Bg7 Nfe3 Ba4 Rh4 Qh7 Ke8 d7+ Kd8 Ne7 Kc7 d8Q+ Kb7 Ng8 Ka6 d6 Ne7 d7 Ng6 Bc6 Qe8 d5 Qe4 d6 Nh8 Nf1 Rg5 Nd4 Rb5 Qf8 Ka5 d8R Nd3+ Ke2 Qg1 d7 h1R Qb4+ Kb6 Qa4 Kc5 Qa7+ Kc4 Qb6 Bb7 Rb8 Kc3 d8R Rg5 Rd5 R1h2 Rbd8 Ba6 Rf5 Bb7 Rf2 Bc8 Nd2 Ra5 Re8 Rd5 Re5 Qh1 Rg5 Qg1 Rbd1 b1N Qa7 Kb2 Rc1 Qf4 Rc3 Qe4 Rb3+ Ka1 Rb8 Qf5 Nb5 Nb2 Qd4 Qe5 Rb6 Qe4 Rf4 Qh1 Kf2 Qf1+ Kg3 Qc4 Kf2 Qe2+ Kg1 Qd1 Rf2 Nc3 Ref1 Qe1 Rf3 Ncd1 Rf2 Qe2 Re1 Qf1+
Qqr2Q1q/1K4n1/R1r2N1B/4PQn1/P2r1pnB/N2nBP2/8/RnbB1k2 w - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 b4 Qd5 Ba6 Qd1 a4 b3 Bb5 cxb5 axb3 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 h4 g5 a4 c5 f3+ Kg3 e4 Kf2 e6 f5 b6 g4 e7 g3 e8Q b2 b7 f4 e5 b3 h6 c4 h5 g2 h7 c3 h6 c2 Ba6 Nc6 b8B Nce7+ Kc5 d5 Qf7 d4 Qd3 Nf6 Bc7 Rc8 Kb6 Nf5 Qe7 Ng4 Qa3 Ng7 Ne2 g1N Nec3 Qd6+ Kb7 Nh3 Bd8 Rc6 Nd5 Ng5 Qf5 d3 Nf6 d2 Be2 d1R Be3+ Kg2 Rh5 Rd4 Bd1 c1N Rh1 Rg8 h8B Nd3 h7 Be7 Rh5 Kf1 Rh6 Rf8 Qc5 Rg8 Na3 b1N Qa5 b2 Qa8 Re8 Ba5 Rec8 Be1 Nd2 Bh4 b1Q+ Ka7 Qa2 Kb7 Nb1 Rg6 Qg8 Rh6 Nh5 Bg7 Qh8 Bf8 Ng7 Rg6 Qg8 h8Q Qh7 Qg8 Qh8 Rh6 Bd8 Rg6 Ba5 Qf7 Bd2 Qg8 Nh5 Bh6 Bc1 Qf8 Qc5 Rg7 Qd6 Rd7 Ng7 Rc7 Rc5 Rc6 Rc3 Rb6 R3c6 Ra6 Qb8+
QrNR3B/4p1r1/1PR1P2k/n3rQr1/1Nr2Pqb/2QB2q1/R1K4q/2n3Q1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 h3 fxg4 Qa4 g3 Qd1 g2 Nc3 g5 Nb1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Ra3 Qc8 Ra1 Qd8 e4 Kf7 d4 Kg6 Kd2 c5 b4 a5 f4 h5 g5 c4 e5 a4 d6 h4 d5 c3+ Kc2 a3 e6 h3 d7 h2 b6 a2 b7 Ra6 b5 Kh7 b6 Bh6 d6 Nf6 Na3 Ng4 Bb2 Nf2 Qd4 Nc6 b8Q Ra5 Nb5 Qg8 d8R Nd3 d7 Nc1 Ne2 g1R Nd6 g2 Nc8 Re5 Qa8 Na5 g6+ Kg7 Qae4 Bg5 Qf5 Kh6 g7 Bh4 Qe3 Rh7 Nd4 Rh8 Bd3 Rh7 Rb1 a1R Nc6 Ra4 Ra1 Rc4 Ra2 Rh8 Kb1 Rcc5 Ba1 c2+ Kb2 Rc4 Nb4 Rcc5 Qg4 Rg5 Qf5 Re5 Qc5 Qf7 g8Q Qh5 Qc3 Qg4 Qgf7 Rhg8 Qe8 R8g7 Qg8 Rd1 Re1 g1Q Re4 h1Q Rc4 Q1g3 Rc6 Rh7 Rf8 Qhg2 d8Q Q2h2 Qdd4 Rhg7 Rd8 Ncb3 Qg1 c1R+ Qd2 Rc4 Qgf8 Qh1 Qc3 Nc1 Kc2 Qhh3 Qe8 Qh1 Qd7 Qhh3 Qb7 Qh1 Qa8 Qhh2+ Be2 Rd7 Bb2 Rb7 Ba1 Qh1 Bd3 Qhh2+ Kb1 Rb5 Qb3 Rg8 Bh8 Re5 Qb2 Rb8 Qc3 Ne2 Kb2 R8g7 Kc2 Nc1+
4RnB1/Pbr2K2/3Q1b2/2b2kbn/2NPpBbq/1RNqP3/N4q1Q/5BN1 w - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 b5 b4 a5 h3 axb4 gxf5 g5 h4 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bd7 Nf3 Be6 Ng1 Bc8 f4 Kd7 Kf2 c5 Kg3 h5 Kh4 e5 a4 b3 a5 c4 d6 b2 f6 Ke6 g6 b4 Kg5 b3 d7 g3 g7 g2 Kg6 h4 f7 c3 a6 c2 a7 h3 Ra3 h2 Nc3 Be7 f8Q b1Q d3 b2 Qd2 e4 Rb3 Rh7 f5+ Ke5 f6 Qa2 f7 b1Q Qh6 Nf6 g8B Bb7 Bf4+ Ke6 Qh4 Nh5 Qh6 Bf6 f8N+ Ke7 Qf2 c1B Qh4 Be3 Qf2 Bc5 d4 Qd3 Qg3 Rf7 e3 Qf2 Na2 Bg5 Nh7 Ke6 Nf6 Qe7 Nd5 Qd8 Nf3 g1B Ndc3 Bf6 Qf8 Qe7 Kh6 Kf5 d8N Nd7 Nc6 Qd8 Qd6 Nf8 Na5 Rc7 Qg2 Qfc2 Qd2 Bf2 Nc4 B2h4 Rg1 h1B Qh2 Qcd2 Rg3 Qb2 Ng1 Bf3 Rg7 Bg4 Re7 Qf2 Re8 Ng3 Qe7 Bfg5+ Kg7 Nh5+ Kf7 Bf6 Nd5 Bhg5 Ndc3 Nd7 Qd6 Nf8+ Re7 Bh4 Nh3 Bh8 Rd7 Qg5 Ng1 Bf6 Re7 Bf3 Rd7 Qgg3 Re7 Bhg5 Qb6 Bg4 Qd6 Rc8 Re6 Qh4 Re8 Rc7+
1k1n3B/2pqQ3/bqP1q3/2Br2R1/PRB1P2N/Q1qrr2B/1n4q1/1N1Q2K1 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 f5 gxf5 axb4 h4 g4 Bd2 Bh6 Bc1 Bg5 hxg5 Ra5 Rh4 Ra7 Rh1 Ra8 f4 b5 Kf2 h5 a4 d5 e4 Kd7 c4 d4 c5 d3 g6 h4 f6 b3 f7 d2 f8B b4 g7 h3 f5 h2 f6 b2 f7 g3+ Kg2 b3 Bb5+ Nc6 Na3 b1Q Bc4 b2 Bb5 Ne7 g8B Ng6 Bd6 Qa2 f8Q b1Q Nc2 Rh3 Nf3 Ba6 e6+ Kc8 e7 Qbb2 e8Q Nge5 Be6+ Kb8 Qee7 Nd3 Na3 Qc3 Nh4 Nb2 Rg1 h1Q+ Kf1 Qd5 Nb1 g2+ Kf2 Qdb3 Bbc4 Re3 Bh3 Qe8 Be5 Nd8 c6 Qd7 Bh8 Ra7 Qff3 Rb7 Ra2 Rb5 Ra3 Qa2 Rb3 Qh2 Rb4 Qh1 Qb3 d1R Qa3 Rdd3 Qd1 Qh2 Bd2 Qhd6 Be1 Qdd4 Bd2 Qb6 Bc1 Rbd5 Bd2 Rg3+ Be3 Qab3 Bc5 Rge3 Qh5 Qe5 Qd1 Qbc3 Rf1 Qee6 Kg1 Bb7 Rf5 Ba6 Kf2 Rg3 Rg5 g1Q+ Ke2 Qh2+ Kf1 Rge3 Qe8 Qe2+ Kg1 Qed2 Qe7 Qg2+
kN1RB1Q1/1pQ3q1/nP4P1/1RbQ4/bQ1B1r2/P1q2q1N/1rNb3K/5bb1 w - - 0 1 illegal: No proof kernel
4R2N/6n1/k1nqNR2/1n3RBQ/n1PBQ3/p2PrB2/P1r3q1/n1Kb1r1B w - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 Bh6 gxf5 dxe4 Na3 g4 Nb1 Bg5 hxg5 Qc7 Bg2 Qd7 Bf1 Qd8 c4 Kd7 f4 Kc6 f6 a5 f5 e5 g6 h5 f7 b5 f8B Kb7 g7 g3 d3 e3 c6+ Ka6 c7 a4 f6 a3 f7 e2 Kd2 e1R Kc2 h4 Nf3 g2 Ng5 g1N Qd2 e4 Qb4 e3 Rh3 e2 Qd2 b4 Rh2 h3 Qd1 Nf6 g8B Nc6 Bg7 Nf3 f8R Bg4 Nc3 Qd6 Nb5 Ne8 Rf2 h2 Nd4 h1Q Nde6 Qg2 Rf6 Rh2 Nf7 b3+ Kb1 b2 Nh8 Rb8 Bg5 Nfd4 R2f5 Nb5 c8Q+ Rb7 Kc2 b1N Kc1 N1c3 Qa8+ Ra7 Bf7 Na4 Bh5 Bf3 Qd8 Rf7 Qe7 Qg1 Bh3 Qg2 Rb1 Rf1 Rb2 e1N Re2 Nc2 Ree5 Qg1 Bg2 Na1 Bh1 Qg2 Re4 Be2 Bf3 Rf8 Qe1 Rg8 Qf7 Bd1 Qh5 Rf8 Ree5 Rf7 Qe4 Re7 B7h6 Ng7 Be3 Qg1 Bhg5 Rd2 Bd4 Qg2 Rf8 Rdf2 R5f6 Rb2 Ref5 Re2 Re8 Rd2 Nd8 Re5 Ne6 Rdf2 Qeh4 Re3 Qe4 Rc2+
1n2rQ1N/5Rr1/bb3r2/3N4/Q1P1p2r/NK1Pq1B1/Bq1NPQqR/k1r5 w - - 0 1 illegal: No proof kernel
1BQ4b/6p1/b1Pn2rP/1RBn1q2/1N2n1PN/BKR2qq1/R1q3Bk/5Qq1 w - - 0 1 illegal: Other
2qQbRB1/rp1R2b1/1R3r1Q/2n3PN/rP5r/b1r2N2/4NPk1/KR4Bq w - - 0 1 illegal: No proof kernel
1B1Bn1nQ/1bP5/2N1p3/nRN3qR/4B2n/P1B5/nKrbP2q/N2k1q1Q w - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 g5 b4 a5 h3 f5 gxf5 axb4 h4 g4 Qd3 Ra6 Qd5 Rg6 Qd1 Rg5 hxg5 Bh6 Bb2 Bg7 Bc1 Bf8 Kd2 Kf7 c4 h5 Kc2 d5 f4 d4 a3 b3+ Kb2 h4 f6 Kg6 c6 Kf5 f7 Ke4 f5 b4 f6 e6 c7 g3 c5 d3 g6 d2 g7 Ke3 c6 h3 Bg2 h2 Bh3 g2 Nf3 g1N Ne1 Bb7 c8N Na6 Bg4 Nf3 Bf5 Nc7 Na7 Nh4 Nd3 Ne8 Be4 Bd6 f8B Bf4 f7 Qg5 Be7 Rh7 Rf1 h1Q f8B Qh2 Nc5 Rh8 Rh1 Kf2 Qc2 d1Q Bd2 Qf1 Bc3 Bd2 Bd8 Ke1 Bd6 Rh6 Qd3 Kd1 Bb8 Rf6 Qh3 Rf3 Bcf6 Rc3 c7 Rc4 Nc6 Rc1 Ra2 Ke1 Ka1 Kd1 Rc2 b2+ Ka2 Be1 Nd2 b1N Kb2 Nc3 Ndb3 Bd2 Na1 Na2 Rc4 b3 Rb4 Nf5 Qh6 Nh4 Rb5 Nb4 Na7 Nc6 Bc3 Na5 Nc6 Rc2+ Kb1 b2 Ka2 Rc1 Qh8 Ne7 g8Q b1N Qgh7 Ng8 Qh5 Qhf4 Kb2 Qh2 Be5 Nc3 Bg7 Na2 Bc3 Qhf4 Rh3 Q4f2 Qf3 Qh2 Qh1 Ng2 Rh7 Nh4 Rh5 Rc2+
RQq2R2/2p5/bn1r2B1/n2q2N1/5RQ1/B4NrK/kNP3PP/qRrq1q2 w - - 0 1 illegal: No possible last move
5B1N/2B2qR1/2qq1QB1/1R1N2P1/2b1nNp1/2n1bn2/1BPqr1Pk/bQK5 w - - 0 1 illegal: No possible last move, all moves rejected
qrb2QBR/p4QB1/1P4Kb/Pkbrr3/NN1q1n2/4Qq2/1R1Q1P2/2Nr4 w - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 f5 h3 Nc6 h4 Nd4 gxf5 bxc4 Bd2 g4 Be3 Ne6 Bc1 Ng5 hxg5 Be7 Nc3 Bd6 Nb1 Bf8 Kd2 h5 Ke3 d5 Kf4 Kd7 a4 Kc6 e4 d4 b4 d3 a5 c3 b5+ Kc5 e6 g3 e7 c2 e8Q c6 e5 h4 e6 g2 g6 h3 b6 d2 g7 h2 e7 Qd6+ Kg5 Qd4 f6 Rh5+ Kg6 Rb8 f7 Nf6 g8N Nd5 Bc4 Re5 Bb2 c1Q Ne2 Qcc3 Nc1 Qf3 Nf6 Kb4 Ba2 c5 Nc3 c4 Na4 c3 Rb1 c2 Bc4 Bh6 f8Q Be3 Qe2 d1R Qef7 Rd3 Bb3 Kb5 Qd2 Bh6 Bc3 Be3 Rb2 g1R+ Kh7 Nf4 Nd5 Rd1 e8Q+ Ka6 Qee7 Kb5 Nb4 Qa8 Qf5 Qf3 Bg8 Qa8 Q5f7 Qf3 Rg1 h1Q+ Kg7 Qhg2+ Qg5 Qa8 Rh1 Qgf3 Kf6 Qde4 Rh4 Rdd5 Rh8 Bc5 Kg7 Nh3 Qge3 Nf4 Ne2 c1B Kh6 Re7 Bg7 Qd4 Kh7 Ree5 Kh6 Ng2 Kg6 Nf4+ Kh7 Rg1 Qb3 Nh5 Qdc2 Bd2 Nc1 Bg5 Kg6 Rd1 Qd2 Bh6 Qbe3 Nf4+
nrN1N3/nPn2q1R/2Nnq3/2K1r1pB/2P2B2/3RR1r1/Qb1Q1qPN/7k w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 g5 h5 Bb7 exf5 Bd5 Be2 Bf7 Bf1 Bg6 hxg6 Qb6 Bc4 Qc7 Bf1 Qd8 Kd2 e5 Kd3 Ke7 Kc4 Kf6 f4 d5+ Kd3 h5 b4 a5 c4 e4+ Kd2 h4 g7 h3 b6 h2 b7 a4 b5 a3 b6 a2 Qb3 e3+ Kd3 e2 Qa3 e1Q Be3 Qd7 Qa7 Na6 b8N Qe6 b7 Ba3 Nc6 Qf2 Ne5 Re8 Qc5 Ne7 Qa5 Nc7 Nc6 Bb2 Be2 Nc8 Nc3 Na8 Bh5 Na7 Rd1 a1R Nf3 Ra3 g8Q Rb3 Qa2 Qf7 Qf8 Re5 Qb4 Rb8 Rhe1 h1N Nh2 Ng3 Bc1 Qd7 Re3 Qf7 Bd2 Ne4 Qba5 Rb4 Na4 Nd6 Nb6 Qe6 Nc8 Rb3+ Kc2 Rd3 Qc3 Qf7 Kb3 Qe6 Kb4 Qf7 Re2 Rg3 Kc5 d3+ Re3 Qe6 Bc1 d2 Rh1 d1Q Qd2 Qdf3 Rd1 Kg7 f6+ Kh6 f5 Qf4 f7 d4+ Kb4 d3 f8N Q4f3 f6 Qf4 f7 Qff5 Qe2 d2 Nd7 Q5f3 f8R Qff7 Rh1 d1N Rd8 Nc3 Qd2 Ncb5 Nf6 Nbc7 Rd7 Qg4 Ne8 Qge6 Bf3 Kg6 Bh5+ Kf5 Rd1 Qfg6 Rh7 Kf4 Qd5 Qgf7 Kc5 Rf3 Rd3 Kg3 Qa5 Qe2 Qd2 Kf2 Qa5 Kg1 Qa2 Kh1 Bd2 Rg3 Bc1 Re4 Qd4 Qd2 Qc3 Qe1 Qd2 Re5+ Rd5 Nb6 Re2 Ba3+ Qb4 Nba8 Bf4 Qfe7 Re3 Bb2 Qc3 Q7f7 Qd2 Re4 Rd4 Qf2 Rdd3 Re5+
qQN1n2R/1bqbN3/7p/2QN4/B1nN1RqB/P2Kb1Pk/1B4nP/r5n1 w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 b4 a6 f4 Nd7 e5 Nb8 e6 a5 fxg5 Ra6 d3 Rd6 d4 Rd7 d6 axb4 d5 Bg7 exd7+ Kf8 Nf3 Bh6 Ke2 Kg7 Ke1 Kg6 Ng1 Bf8 Kd2 Kf5 g3 e5 g6 c5 g7 e4 Ne2 Kg4 Ke3 f5 Qa4 b3 Ba3 b2 Nf4 c4 Qa7 b4 Kd2 b3 Bc5 h6 Na3 b1Q Nd3 b2 Nc2 e3+ Kc3 f4 Kd4 f3 Kc3 f2 Ndb4 e2 Rg1 e1N Nd4 Qc7 d8N Bb7 d7 Qe4 d6 b1Q Nf7 Nf6 d8Q Ne8 g8N Nd7 Qdb8 Ne5 d7 Qd1 d8B Ng2 Bh4 Kh3 Nd5 Qdg4 Ba3 Bc5 Nge7 Rf8 Be2 f1B Bd1 Be2 Nd6 Rf1 Bb2 Bb6 Nb3 Be3 Qc5 Qef3 Kc2 c3 Ndc8 Bb5 Nd4 Nc4 Kd3 Bd7 Ba4 c2 a3 Rb1 Re1 Qf8 Ra2 Ra1 Rf1 Qh8 Rf7 Qhg8 Rh7 Qf8 Rh8 c1N+ Kc3 Ne2+ Kd3 Re1 Ra1 Ng1 Rd1 Qff3 Rd2 Ra1 Rf2 Qf6 Rf1 Qa6 Rf4 Qa8
k3NB1R/1R4pn/r5qP/1rn3P1/1rr1bKr1/Q3QQ1N/3P4/1rNnQB2 w - - 0 1 illegal: No proof kernel
R2b1Bb1/K5Q1/R2p4/NPQ1nN2/NbPn2Nb/1qbP4/4b3/Br2nB1k w - - 0 1 legal: proof: e4 c5 g4 f5 exf5 a5 b4 h5 a3 hxg4 bxc5 b5 a4 b4 Ba6 Ra7 Be2 Rb7 Bf1 Rb5 axb5 Rh6 Be2 Rh5 Bf1 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 f4+ Kh4 c4 e5+ Kd5 g5 f6 a4 h3 Kg3 h4 b3 h5 b2 c6 e4 c7 e3 f5 e2 h6 e1N h7 a3 f7 a2 f6 Nh6 Bd3 Kg2 Nc3 b1B Nf3 g3 Nh2 g4 Bb2 Bb4 f8Q Nc6 f7 Nf5 Na4 Ne5 Qg7 Nd4 f8B d6 Qb3 Qg5 Qa3 Qe3 Bc3 Bd7 c8N Rg8 Be2 Bd3 h8N B7f5 Nf7 Bh7 Bb2 Rh8 Na7 Bg8 Nc6 Rh7 Rd1 a1B Na5 Rh5 Rf1 Rf5 Rf4 Kh1 Bf1 g2 Rf2 g3 Ng4 g1B Bc3 Bh7 Nfh6 g2 Rb1 Bb2 Ra1 Be2 Rf4 Rh5 Nf5 Bf2 Rf3 g1B d3 Qc1 Ra2 Bh4 Rf2 Qd1 Rg2 Bc1 Ba1 Bcg5 Rg3 Bc3 Qc5 Bd8 Ra3 Qb3 Re3 Nf7 Re8 Bg8 Ra2 Be3 Ra3 Bed2 Ra2 Ndf3 Kc6 N7e5+ Kb7 Nd4 Ka7 Bb4 Ra3 Bdc3 Ra2 Bdg5 Ra8 Bd8 Nfh6 Rf5 Ra3 Rf2 Nf5 Rg2 Ra2 Rg1 Nc6 Bde7 Nb6 Ndf3 Ra6 Ng2 Na4 Nd4 Na5 Bef6 Qd5 Bd8 Qc5 Bf3 Be2 Rb1 Bf1 Ne1 Rc6 Bd1 Ra6 Be2
kNq3qN/3b2N1/3q1Kp1/2nP2P1/P4BBQ/B3Qr1q/2n3qR/1qr1NR2 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 g6 h4 Ra7 b4 axb4 h5 Ra6 h6 Bg7 hxg7 Ra8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 e5+ f6 b5 f4 Kb7 d4 h5 g4 b3 a4 c4 d6 e4 d5 b4 f5 c3 d7 c2 Bf4 c1Q Be3 h4 Bh3 b2 Qb3 Nh6 g8N Na6 Bf4 e3 Rh2 e2 Na3 b1Q Qe3 e1Q Nc4 b3 Ne5 b2 Ngf3 Qh1 Ne1 Nc5 Nc6 Qg2 Nb8 Ra6 Ne7 Rc6 f7 Rf8 f6 Ka8 Nf5 Rc7 Ng7 Nf5 Na6 Qd3 Nb8 Qa6 Rb1 Qe8 d8N Nd4 Ra1 Nc2 Rb1 Rg8 f8Q Bd7 f7 Qd6 Qfe7 Rf8 Ra1 b1Q Q7e4 Rg8 f8B Rh8 Be7 Rf8 Nf7 Qc8 Nh8 Qa3 Be5 Rf3 Bf4 Qe6 Q4d4 Qeg8 Kf6 Qab4 g5 Qa3 Bg4 h3 Rh1 h2 Ra2 Qab4 Rf1 h1Q Bf8 Qhh3 Bd6 Ne6 Rb2 Qb6 Ba3 Qd6 Qde4 Nb4 Q4d4 Rc1 Re2 Nc2 Qc4 Qgg3 Rh2 Nc5+ Be6 Qhg4 Qce2 Qge8 Q2f2 Qg2 Qg3 Q4h3 Qh4 Qdc7 Bf5 Qg8 Bg4 Qd6+
K7/n1N1Rr1N/3n1NQ1/1RrN4/2n2p2/bRP1rPQ1/1qPB1qB1/2n3kr w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 gxh4 Na3 d5 Qh5 d4 Nb1 c4 Qd1 c3 dxc3 Bd7 Nd2 Bc6 Nb1 Bd5 exd5 Qa5 Bf4 Qb6 Bc1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 g4 a5 b4 f5 g5 h5 b6 e5+ d6 f4 g6 h3 b5 a4 g7 d3 b7 a3 b6 h2 Qd2 h4 Nf3 h3 Bb2 a2 Ba3 Rh7 Bg2 Nc6 b8Q Qh4 b7 Nf6 Kb6 Ra5 g8N Na7 d7 Rf7 d8N Ne8 Ne6 Nd6 Nc7 Rc5 Bc1 Be7 Rg1 h1R Qe8 h2 b8R Bf8 Qd1 d2 Na3 Qg3 Qf1 d1N Qe1+ Ne3 Rb1 a1Q Bd2 Qb2+ Nab5 Be7 Nd5 Qh4 Qf1 Nec4+ Ka6 Bf8 Nbc7 Qg3 Qc1 Be7 Rd1 Re1 Rb3 Re3 Re1 h1R Ngf6+ Kf5 Qg8 Re4 Bf1 Rc6+ Nb6 Ne8 Kb7 Ba3 Na8 Rc5 Rb5 Qa1 Qg7 Ned6+ Kb8 Re2 Ncd5 e4 R1b4 e3 Bg2 Qb2 Rb3 Qh4 Ng5 Qg3 Nfe4 Kg4 f3+ Kh4 Qg6 Qh2 Nef6 Kg3 Bh3 Kf2 Nac7 Qg3 Bf1 Kg1 Ka8 Qh4 Rd1 Re1 Bg2 e2 Ngh7 Rf1 Nb4 e1N Nbd5 Nd3 Re1 Qg3 Re7 Re1 Qd1 Nc1 Qe2 Qh4 Qe6 Re5 Qeg4 Qf2 Qg3 Re3
B1RK4/1b5k/Q2R3N/1PrP1nq1/q6p/3NNQ2/1BbbnR1P/1R1b2qq w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 a5 cxd5 b5 axb5 Ra6 Ra2 Rf6 Ra3 exf4 Ra1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 Kf7 e4 h5 d4 g5 b4 Kg7 d6 c5 f6+ Kh7 d7 g4 e5 c4 b6 c3 b7 a4 f7 c2 b5 a3 e6 a2 e7 h4 e8Q Be7 f8R Na6 b8R Nh6 Nh3 Nc5 Na3 Na4 Bb2 c1Q Nc2 Bb4 Bg2 Nc3 Qe6 Bb7 Qa6 Ne2 Ne3 Bd2 Rb1 a1Q Rc8 Qg5 d8N Nf5 Nf7 Qa4 Nh6 Rg8 Rfd8 Re8 Rd5 Re5 Rd6 Qc6 Qb3 Rc5 Rhc1 Qd5 Rc2 g3+ Kf1 Qac4 Nf2 Qa4 Nd3 f2 Bf3 Qe4 Kg2 Qd5 Kh3 f1B+ Bg2 f3 Qa3 f2 Qc3 Qd8 Kg4 Qe7 Bh1 g2 Qa3 Qee5 Kg5 g1Q+ Bg2 Qg3+ Kf6 Qe4 Kf7 Qg5 Kf8 Qf3 Ke8 Qd5 Bf3 Bg2 Be4 f1B Qb3 Bf3 Qa3 Q5g2 Kd8 Q2h1 Qb3 Qe5 Bc6 Bh3 Qd5 Bh5 Qf3 B3g4 Be4 Bf7 Bc6 Bb3 d5 Qeg3 Rcc1 Bc2 Rf1 Q3g2 Rf2 Nc3 Qh3 Bgd1 Qf3 Ne2 Qb6 Ba6 Ba8 Bb7 Qa6 Qg5+
4rBqB/P1qRPn2/kNN2p2/3Q4/2rqbr2/5RK1/1qnr1P1Q/1BQ4B w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 b5 c3 b3 Qd4 b4 Qd1 b2 Kd2 b3 Ke1 Bb4 cxb4 Qe7 Qd2 Qh4 Qd1 Qd8 e4 g5 a4 d5 h4 Kd7 h6 Kc6 h7 Kb6 a5+ Kb7 b5 c5 h5 c4 e6 f6 a6+ Kb6 h6 g4 e5 c3 e7 g3 e8B c2 a7 d4 e6 g2 Ra3 d3 Bc6 d2+ Ke2 Qf8 Kf3 Qg7 Ne2 g1Q Nd4 Bb7 Bd3 Q7g6 Nc3 b1R Na4+ Ka5 b6 b2 Qf1 d1R Be3 Rd2 Qc1 Qh2 Rd1 Na6 Bg5 Qh1+ Kg3 Re8 Bf3 Bc6 b7 Nb4 b8Q Be4 Qb7 Qhh5 Bh1 Qg4+ Kh2 Rc8 Qd5+ Rc5 Rb3 Ra1 Rc3 b1Q Nb6 Qb2 Bf4 Q6g5 Bd6 Ra4 Bf8 Q4f4+ Kh3 Qc7 Ra3 Qc3 Rb3 Qc4 Rc3 Ka6 Nc6 Qe3+ Kg4 Qd4 Kh4 Qe7 Kg3 Qc7+ Qd6 Rf5 Rb3 Rf4 Qd5 Ne7 Ra3 Nc8 e7 Nd6 Rc3 Nf7 Rb3 Bg2 Bg6 Rg8 h8Q Be4 Rf3 Qa2 h7 Qab2 Bg7 Re8 Bf8 Qa2 Qg7 Qab2 h8B Qd8 Qh7 Qc8 Qa1 c1Q Qh2 Nc2 Qb1 Rc4 Qa1+ Qa2 Qb1 Qcb2 Qc1 Qa5 Qf5 Qd6 Qhh5 Nd4 Qh7 Rd8 Qh6 Re2 Nd5 Bd3 Bfg7 Qac7 Nb6 Bc2 Rdd3 Rd2 Qh2 Rg8 Qfh5 Qf8 Bh6 Qg7 Qe5 Re8 Qe4 Qg8 Bf8 Nb3 Qe6 Na1 Qf5 Qc5 Rd7 Qcd4 Qc5 Be4 Qg5 Bd5 Bc2 Be4 Bb1 Bg6 Qc5 Nc2 Qd5 Be4+
1KBb4/1PrQ2P1/R2Q2R1/2nN1BQp/r1b1b3/B2n2N1/5b1P/nn1nk1B1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 f4 c5 fxg5 d4 d3 Qd5 exd5 c4 Ra2 cxd3 Ra3 Nd7 Ra1 Nb8 Kf2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kc4 b4 f5 g4 h5 c3 a5 d6 a4 b6 a3 g6 a2 b5 f4 d7 f3 d8Q f2 g5 Rh7 b7 Nf6 g7 Ra4 g8Q+ Nd5 b6 Na6 b8B Nc5 g6 Bb7 Ne2 d2 Bh3 Kd3 c4 f1B Ng3 Nc3 Bf5+ Be4 b7 e6 Ba7 Be7 Qb6 Bd8 Kd6 e5 Rg1 Rc7 Ba3 Ke3 g7 Kf2 Qd5 d3 Qg4 d1N Qg5 d2 Qa6 Ne2 Nc3 Nc1 Qac6 Be2 Qd7 Nd3 Q5c6 Bf1 Nd5 Nc3 Qb6 d1N Qb4 Ke1 Rg2 Nb3 c5 Be2 c6 Nbc5 Qb6 Nb1 Qa6 Ne6 Bg1 Nec5 Qb6 B4f3 Qa6 e4 Qb6 e3 Qa6 Rc8 c7 Be4 Qac6 Bf1 Qb6 e2 Kc6 Rca8 c8B Rc4 Qbc7 Raa4 Qcd6 Nd2 Rb1 a1N Rb6 Nb1 Ra6 Ncb3+ Kb5 Rc7 Kb6 Nbc5 Ka7 Ndc3 Qge7 Nd1 Kb8 Kd2 Bf2 e1B Bg1+ Bf2 Qg5+ Ke1 Qh4 Nc1 Ne2 Rc4 Rg6 Ra4 Ng3 Bc4 Qg5 N1d3
r1B1b2Q/1N3br1/1kBbn1b1/nr1R2P1/3n2Q1/pr1P3Q/P1QK4/R2N2B1 w - - 0 1 legal: proof: e4 g5 b4 c5 bxc5 d5 g4 dxe4 f4 Nc6 fxg5 Qa5 h4 Be6 h5 Qa6 g6 Nf6 g5 Ng8 g7 Nb8 Nh3 Bf5 Ng1 Qg6 hxg6 Bc8 c4 Kd7 c6+ Kc7 c5 h5 Na3 e5 Bg2 a5 Rh3 f5 Rb1 b5 Qf3 b4 Qd1 a4 Ra1 b3 Rf3 f4 Ke2 b2 Rb3 b1R Bh3 h4 Bb2 f3+ Ke1 e3 Rb4 e2 Rb5 e4 Bg4 h3 Bh5 h2 Bc1 h1B Qc2 Na6 Ra5 Be6 Rb5 Ne7 g8Q Rb3 g7 Bf7 Nc4 a3 Qh7 Rg8 Na5 Bg2 Qh8 Bh3 Bg6 Bd7 Nh3 Bde8 d3 f2+ Kd2 f1B Bf5 e1R Bc8 Be2 Nb7 Beh5 Nf2 Bhg6 Nd1 Rf1 Bd7 Rf5 Qh3 Rd5 Bb2 Re5 Bd4 e3+ Ke1 e2 Bg1 Rf5 Kd2 e1N Ra5 Nb4 Rb5 Ng2 Ra5 Nf4 Qg4 Rh8 g8Q Rh7 Qh8 Ne6 Rb5 Rg7 Qgh3 Kb8 c7+ Ka7 c8Q Nec6 Qg4 Na5 c6+ Rc5 c7 Bd6 Bc6 Ka6 Qd7 Rf5 Rc5 Kb6 c8B Re5 Bg2 Nbc6 Rd5+ Ncd4 Qgh3 Nf8 Qdg4 Rf5 Rc5 Nfe6 Bc6 Bb8 Rd5 Bg3 Rd6 Rfb5 Rd5 Bd6
3R3K/4bb1B/1nP1Pp1Q/1b1n3N/1N1B2N1/1QRn1P2/1rrB4/r3Nbnk w - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 b4 Qd3 Qa5 Qd1 Qb5 axb5 Ke7 Qd4 Kd8 Qd1 Ke8 Kd2 Ke7 Ke3 Ke6 Kf4 h5 Kg5 d5 g4 a5 e4 f6+ Kg6 b3 c4 d4 g5 d3 b6 h3 c6 d2 c7 a4 c5 h2 c6 b2 b7 a3 Bd3 a2 Na3 b1N Nc2 h4 Nb4 h3 Nf3 Be7 Kg7 Nc3 g6 Nd7 b8B Ne2 Ne1 Ba6 c8Q Bb5 f3 Ng1 Ba7 Rb8 Qf8 Nb6 Rb1 a1R Rb3 Rh4 Rc3 Rg4 Kh7 Rg2 g7 Rb7 Qc2 d1B Bd2 Rb8 Qb1 Bb3 Kh8 B3c4 Qb3 Bd5 Be3 Rc2 Bd4 Bd8 Be3 Ne7 g8N Bdc4 Bc1 Ned5 Qh6 Be7 Be3 Ne2 Rg1 h1N Bd2 h2 Rg6 Nf2 Rg5 Nc8 Bd4 h1B Rg2 Ncb6 Rg7 Bd8 Rd7 Be7 Rd8 Bg2 Qf8 Rac1 Nh6 Ra1 Ng4 Ng1 Qh6 Bf1 Qe3 Kf7 e6+ Kg6 e5+ Kh5 Bh7 Kh4 Qg5+ Kg3 Qh6 Bc5 e7 Nd3 e8N Be7 Ng7 Rb7 Nh5+ Kh3 Ne3 Kh2 Ng4+ Kh1 Bc1 N5f4 Bce3 Bf7 e6 Nfd5 Bf4 Rba7 Bfe3 R7a2 Bd2 Rab2
1r6/2n2QrQ/n1b1RR2/1NrBBNpK/R1nR3P/3P2b1/p3q2P/k3bQ2 w - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 a4 exf4 g3 b5 axb5 h4 gxh4 Ba3 Qc2 Bb4 Qd1 Bf8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 b4 Kd4 d6 f5 e5 c5 b6 a5 b5 g5 d3 a4 b7 c4 e6 c3 b6 c2 e7 a3 e8R a2 d7 Ne7 Nh3 Na6 b8Q Rg8 b7 Nd5 Ng1 Bd6 Bg2 Ndc7 Na3 Kc3 Re4 Qe8 d8R Rg7 Qa7 Bd7 b8Q Bc6 Qbb7 Rb8 Qf1 Be5 Be3 c1B Nb5+ Kb2 Rd4 Bd2 Ne2 Be1 Ng3 Bd6 Rd1 Qe5 Rd2+ Ka1 Rb2 Qe8 Rbb4 Qe5 Bc1 Qe6 Ra4 Qe8 Ke2 f3+ Ke3 f2 Kf3 f4 Kg4 f3 Bf4 Qe7 Re6 Qe8 Rf6 Qe2 Nf5 Be5 Kh5 Bd6 Qg1 f1N Be5 Nd2 Qf1 f2+ Bf3 Nc4 Rg1 Nd5 Qf7 Ndc7 Rgg4 Nb2 Bd5 Nc4 Qg2 f1R Qg1 Qb2 Rge4 Rf2 Qf1 Rc2 Bg3 Rc1 Ree6 Qc2 Be5 Qe2+ Bf3 Na5 Qb7 Rc5 Qa7 Nc4 Qb7 Qc2 Bd5 Qe2+ Rg4+ Qb2 Qg6 Na8 Bd4 Qc3 Qh7 Bg3 Qf7 N8c7 Be5 Qb2 Rd4 Qe2+
Nn1R2NK/2bRrB2/R3P1qQ/Q3BPr1/1pP3b1/1B1rpn1b/4B3/4kn2 w - - 0 1 illegal: No proof kernel
1n1R4/N2B3P/q1b3P1/3pb2n/1r1QQ2r/BR1BbQ2/pK1krPB1/1n5N w - - 0 1 illegal: No proof kernel
1k1Nb1B1/6P1/n3B1Rn/R3p1R1/1PrBp3/RnrNq1Qb/Q5Pr/1K2b3 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 a5 c4 h5 Kc2 d5 b4 Kd7 f4 Kc7 g6 a4 f5 a3 f6 h4 f7 d4 g7 h3 b6+ Kb7 c6+ Ka6 c7 Kb7 c5 h2 Bb2 a2 Bc4 e6 Qe2 Qd5 Nd2 Ra4 c6+ Ka8 b7+ Ka7 Nh3 Rh5 Nf2 Bc5 f8R Nh6 Nb3 Ra6 Rf6 Qg5 Na5 Qe3 Rg6 Rh3 Nd3 e5 Bg8 Bd7 c8B Be8 c7 Rc6 Bce6 Na6 b8R Rg3 Rhf1 h1R c8Q Rh2 Nb7 Bb6+ Bc3 Rc4 Rf5 Bd8 Qg4 Bh4 Rfg5 Rf3 Qf4 Be1 Nd8 Rfh3 Rb5 Rg3 Rc1 a1N+ Kb1 Nb3 Ra5 Rgh3 Qd7+ Kb8 Qa4 Rg3 Qa2 Rf3 Nf2 d3 Qg3 d2 Nd3 d1B Bd4 Be2 Rc3 Bd1 Qg4 Rfh3 Qf4 Bg4 Qff2 Rf3 Qh4 Bh3 Qg3 Nbc5 Rca3 Nb3 Bc5 Rf7 Bd4 Rfc7 Bc8 Rc3 Bce6 R7c4
qR4rQ/QB1nNp2/4p2n/1N3P2/K2Q2R1/r2Q3b/1PPb1rnb/1N1k2B1 w - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 d5 a4 dxe4 axb5 c6 bxc6 Bh3 Ra2 Bd7 Ra1 Bc8 Ra4 a5 f4 g5 h4 g4 d4 e6 Kd2 Ke7 Qf3 Kd6 Kc3 Kd5 Kb3 g3 c7 g2 h6 Nf6 f5 Rh7 h5 Ba6 c8N Ng4 Qf2 e3 Ne2 Ke4 d5+ Bb4 d6 g1B Nd4 e2 d7 e1N Be3 Bd2 Ne7 Qh8 d8Q Rg7 Rc4 a4+ Ka3 Qe8 Rh3 Bh2 h7 Rg8 h6 Qf8 Qd6 Nd7 Rg3 Ra7 Rb4 Qa8 Rb8 Bc4 Bh3 Bf1 Nb5 Ra6 Qg1 Ra7 Rg2 Kf3 Rg3+ Ke2 Bg2 Kd1 Bb7 Ra5 Qd3 Bh3 Ba7 Ra6 Qb6 Ng2 Qa5 Rc6 Bg1 Rc4 Qb6 Rf4 Qa7 Ngf6 Rg7 Rf2 Rg3 Rg6 Rg4 Ng8 h8Q Rg7 h7 Nh6 Qc8 Rg6 Qcc3 Rg8 Kb4 a3 h8Q a2 Kb3 a1R Qce5 Ra4 Qed4 Rc4 Ka3 Rc3+ Ka4 Ra3+
2Nn4/4p1Nk/2rbN1r1/p2q2R1/1PQ1R1n1/1BKnP3/1rb1bPQ1/2R1B2N w - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 cxd5 fxg4 h4 Bg7 hxg5 Bf8 b4 Kf7 d4 Kg6 Kd2 c5 b6 a5 e3 h5 b7 g3 d6 g2 d7 c4 d5 h4 d6 h3 Nc3 h2 Qc2+ Kg7 g6 Nc6 b8Q Nd4 Ne4 Nh6 Kc3 Nc6 Bd2 Rg8 Be1 Ng4 Qb7 Kh8 g7+ Kh7 Rc1 Ra6 Ne2 g1R N2g3 Rb6 Qa8 Ba6 Be2 Bb5 Bd1 Ba4 Qa2 Bc2 Qb7 Qa8 d8N Ra6 Ne6 Nd8 d7 Rc6 Qb3 Rf1 Rg1 h1B Nd6 Bf3 Nh1 Be2 Rg3 Rg1 Nc8 Rf1 Kd4 c3 Qc4 Bb3 Rf3 c2 Rf4 Rg1 Re4 Rf1 Ra1 c1N Kc3 Nd3 Rc1 Ba4 Bb3 Rg1 Ba2 Bc2 Bb3 Rf1 Qc7 Qb7 Qg3 Qb5 Qg2 Qd5 Bd2 Rd1 Be1 Rd2 Ba2 Rh8 g8R Bh6 Rg5 Rg8 Bb3 Rg6 Ng7 Nb7 Rge5 Bf4 d8N Bg3 Rg5 Bd6 Nde6 Nd8 Rge5 Bb1 Rf5 Rb2 Rg5 Bc2
7Q/pQB2P1n/P1b1NQN1/1r6/1Nn2b2/R1P1rrkb/1pQ2n2/1qR2K1B w - - 0 1 legal: proof: h3 d5 h4 d4 h5 c5 h6 d3 cxd3 f5 e4 c4 exf5 c3 bxc3 gxh6 Ke2 h5 Ke1 h4 a4 Kd7 g4 Kd6 f4 b5 f6 h5 f7 e5 d4 b4 f5 b3 d5 b2 d4 e4 g5 e3 g6 e2 g7 h3 f6 h2 a5 h4 a6 h3 Qc2 Qc7 Bf4+ Kd7 d6 Ke6 d7 Rh5 d8Q Qa5 Qe7+ Kd5 Qb7+ Nc6 Na3 Bd6 f8N Bc7 Kf2 e1R Ng6 Re3 Nf3 Be6 Rc1 Rf8 Bg2 Bf5 Rhg1 h1B Kf1 h2 Be5 Bb8 Bc7 Bh3 Ra1 Rf5 f7 Nf6 g8Q Nh7 Ra2 Ke6 Ra1 Ne5 Qh8 Nc4 Rc1 Rb5 Ra1 Rd3 d5+ Kf5 d6 Kg4 d7 Re8 d8Q Ree3 Nd4 Qb4 Rc1 Qe7 Ra1 Qe4 Qdf6 Qf5+ Nf4 Qg6 Nde6 Qe4 Ng6 Rf3+ Qf2 Rde3 Rc1 Qb1 Nc2 Rf4 Nb4 Rff5 Ba5 Bf4 Qc2 Kg3 Bc7 Rf3+ Ke1 Rd3 Bf3+ B1g2 Ke2 h1N Rgd1 Nf2 Ke1 Bf1 Bh1 Bfg2 Ke2 Bc6 Ke1 Bg4 Kf1 Rfe5 Re1 Rf3 Red1 Ree3 Rd5 Rb6 Ra5 Rb5 Ra3 Bh3+
n2N2Br/1Kq1nBBB/8/N3Q2r/k1r5/1N1PppqR/1PQ3bP/b3b1R1 w - - 0 1 illegal: No proof kernel
1R1q4/5nQ1/kB3b1n/B1PPq2R/1r1pR2b/BK2P2B/1p5n/N1N2brQ w - - 0 1 illegal: No proof kernel
Q5r1/2B1rNnk/3qQ1N1/1p1R1qPn/1Prp4/KBP1N1b1/2Bb2n1/3N2R1 w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 g5 h4 f5 exf5 b6 hxg5 Nh6 a5 Ng8 a6 Bb7 axb7 Qc8 Be2 Qc7 Bf1 Qd8 Kd2 Kf7 b4 Kg7 g4 e5 f4 d5 c3 a5 Kc2 h5 Kb2 e4 f6+ Kh7 f7 d3 f5 d2 f6 e3 Qf3 d1N+ Kb3 a4+ Ka3 e2 Qh3 e1B Nd2 h4 Nc4 d4 Ne3 Na6 b8N b5 Nd7 Bh6 f8Q Nc7 f7 Ne8 Ne5 Ngf6 Bg2 Qc8 Be4+ Qf5 Bc2 Rg8 Bd2 Bg3 g6+ Kh8 g7+ Kh7 Rh2 Nh5 Re2 Bhf4 g5 Rc8 Qg4 Rc5 Nh3 Rc4 Nf2 h3 Re1 h2 Rc1 Qd3 Qe6 h1Q Ra1 Qd5 Rg1 Nc7 Qa8 Qd6 Bc1 Qf5 Ra2 Nb2 Nfd1 Nd3 Bd2 Ne8 Be1 Bh4 Bg3 Ne1 Ra1 Ng2 Re1 Rf8 Bh2 Bhg3 g8B+ Kh8 Rc1 Neg7 Rg1 Rb8 f8N Rb7 Bf7 Re7 Nfg6+ Kh7 Ra1 Be1 Rf1 Bfg3 Rf2 Bd2 Rc1 Qe4 Rf5 Qed5 Be8 Qe4 Nf7 Qef4 Rd5 Qf5 Ka2 a3 Kb3 a2 Ka3 Bf2 Bf4 Bg3 Bc6 Qd8 Bc7 Qb8 Rd7 Qb6 Bd5 Qd6 Rb1 Rc5 Bdb3 a1R+ Kb2 Ra7 Rc1 Rb7 Ka3 Rc4 Ra1 Rb8 Rb1 Qde5 Rd5 Rg8 Nb2 Bh4 Rg1 Qd6 Nbd1 Bg3
r5q1/BKB3n1/3qbb2/PQ1pR1N1/PB1p1QBR/r1P1Nr2/1k1N4/n5q1 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 a4 b6 f4+ Ke4 h4 e5 f6 d6 f5 g4 f7 g3 c3 g2 h6 Kd5 h5 e4 f6 e3 h7 e2 h6 e1Q Ne2 g1R Ng3 Na6 Nf5 Ne7 Bh3 Qg3 Qd3 Qg8 Bf4 Nb4 Nd2 Nc2 Re1 Na1 Bg4 Bg7 f8B Be6 f7 Bf6 Rh4 Rf1 Be5 Rf3 Qf1 Rb8 Ka6 b5 Ne3+ Kc5 Bh2 d5 Bc7 Ra8+ Kb7 b4 Bb8 b3 Ba7+ Kd6 Qd3 b2 Qb5 b1Q Re2 Ke5 Re1 Nf5 Bb4 Ng7 f8Q Qd6 Qb8 Qf8 Re2 Rg8 h8N Qg1 h7 Qf7+ Qc7 Rgc8 Re1 Qg8 Nf7+ Kf4 h8B Rf8 Ndc4 Ke4 Ng5+ Kd3 Qf7 Rfc8 Nd2+ Rc4 Nd1 Kc2 Re5 Kc1 Ne3 Kb2 Qc7 Nh5 Bg7 Rc6 Bf8 Ng7 Be7 Rc5 Bd8 Rc4 Qb8 Rc5 Bc7 Rc4 Bbc5+ Rb4 Qf8 Rb3 Bb4 Ra3 Qf7 Be7 Qf4 Bf6
R1BN1k1B/r3Rn2/3N1PQ1/5Kn1/r1bb4/qR1p2Pq/pPr4q/2R1N2Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 d5 Kd3 h5 f4 a5 c4 e5 g3 h4 g6 a4 f6 h3 c5 h2 c6 a3 b6 a2 c7 Be6 c8R Bc5 f5 Kf8 f7 Nd7 b7 Rh7 b8R Ngf6 Nc3 Ne4 Bf4 Ra4 Nb5 Ng5 Nd6 Ba7 Rc7 Qc8 Nf3 Bb6 Bh3 e4+ Kc2 e3 Kd3 e2 Be5 e1R Bh8 Rg1 Ne1 Rg2 Rac1 Rc2 Qf3 Bc5 Rb3 Ba7 Rf1 h1Q Qd1 Qh2 g7+ Ke7 g8Q Bc5 Qg6 Kf8 Be5 Bb6 Rb7 Qc5 Bg4 Qa3 Bh8 Ba7 Rf2 Bc5 Rd2 Ba7 Qf3 Qh3 Qh1 Ne5+ Ke2 Rg7 Re7 d3+ Kd1 d4 Ne8 Bc4 Rd7 Qh2 Rd8 Qh7 Ra8 Qh2 Nd6+ Ke7 Re2 d2 f8N Bc5 Ne6 Rf7 Nd8 Kf8 f6 Rfa7 Bc8 Nef7 Re7 Bb6 Rd3 Qh3 Ke2 Bc5 Kf2 Bb6 Rb3 d3+ Re3 Ne6 Kf3 Neg5+ Kf4 Bd4 Re7 d1Q Ng2 Qh2 Kf5 Qdh5 Ne1 Q5h3+
q1n3NR/4QQ1r/4PB2/rrRp1PR1/3P2qN/1RpBKnkN/4q3/b6b w - - 0 1 illegal: No proof kernel
RN1n4/br5q/4p1bP/B2RQ2p/rn1RQP1k/N1R5/3P2Kb/1qNr1B2 w - - 0 1 illegal: No proof kernel
2B1nQ1q/2b5/1R1p3p/n4NQ1/r2P1qrQ/2P4B/PRr2NbR/k1nQ1K2 w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 c5 b4 Nc6 bxa5 Nb8 Ba3 Ra6 Bb4 cxb4 Be2 Ra7 Bf1 Ra8 d4 Kf7 g4 b5 f4 e5 a6 e4 f6 Ke6 a7 Kd5 f7 h6 f5 b3 f6 b2 g6 e3 g5 b4 g7 b3 g6 e2 Rh2 Kc4 Bg2 Bd6 f8Q Bc7 f7 d6 Nc3 b1Q Nf3 b2 Bh3 Nc6 Qe7 Na5 f8Q Bb7 Nh4 Qc1 Ne4 b1R Nf2 Kc3 Nf5 Kb2 c3 Nf6 g8R Qf4 g7 Ne8 Qh4 Rh7 Rh8 Rc1 g8Q Bg2 Qgg5 Rg7 Rg8 Rc2 Rb1+ Ka3 Rb6 Qf6 Qgh5 Rg4 Q5g5 Qh8 Rg7 Rb8 Rb2 Rb4 a8B Ra4 Bb7 Be4 Rb6 Bg2 Rc6 Kb2 Bc8 Bd8 Rb7+ Bb6 Qd3 Ka1 Qf3 Bd8 Rb2 Bc7 Rcb6 Bf1 Ne4 Bg2 Kf2 e1N+ Kg1 Qf6 Nf2 Nd3 Qe2 Nc1 Qd1 Ba8+ Kf1 Qh8 Ng3 Bb7 Nf5 Bg2+
1r1N2r1/1nQ1B3/2P2pbn/n1N1qRPK/1rk1BRPb/R2qQ3/1p6/3QQ3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kf2 Ke7 Kg3 Ke6 Kh4 h5 c4 d5 a4 b5 e4 f6 g4 b3 c6 b2 c7 d4 c5 b4 c6 d3 a5 b3 a6 d2 a7 Qd7 Bd3 Be7 Ra5 Bb4 Nf3 Nh6 Rf1 Rg8 Nc3 b1R Ba3 Na6 Na4 Rb8 a8R Nc5 Rf2 Ba6 c8Q Nb7 Qc7 Bc3 Bc2 Bd3 Be7 Rb2 Bb1 Bc2 R8a7 Qd3 Rd5 Ra2 Rc5 b2 Rb5 Ra3 Rb4 Rb3 Nc5+ Kf7 Rb5 Rb4 Ra3 Bd4 Rf1 Bg1 Rf2 Bh2 Nd4 Bg3+ Kh3 h4 Rf4 Qc3 Nde6 Qd3 Qc1 d1N Nd8+ Kg7 e6 Ne3 e5 Nc4 Qd1 Nca5 Bd6+ Kg6 e7 Kg7 e6 Bf2+ Kg2 h3+ Kh2 Bh4 e8Q+ Nf7 e7 Nh6 Qed7 Kg6 Qe6 Kg7 Qee1 Kg6 Kh1 h2 Kg2 Kg7 Nb3 Kg6 Rbf5 Kg7 Nc5 Kg6 Qg3 h1Q+ Kf2 Qhe4 e8Q+ Nf7 Qe5 Nh6 Be7 Qed5 Qee1 Qe5 Nde6 Kf7 Kg2 Qa6 Kh3 Be4 Qge3 Qc4 Rf1 Qd3 R5f4 Bh7 Nd8+ Kg7 Rf5 Kg6 R1f4 Kg7 Nde6+ Kf7 Nd8+ Kg6 Na4 Qde4 Bd6 Bg3 Qa7 Q4d4 Be4 Qd3 Be7 Kg7 Ne6+ Kf7 Qae3 Bh2 Kh4 Bg3+ Kh5 Bf2 Nd4 Bh4 Nb5 Ke6 Nd6 Qdb5 Nf7 Qa6 Bd3 Kd5 Nc5 Qc4 Nd8 Qe4 Bb1+ Kc4 Bc2 Q4d4 Be4 Qd2 Q1f2 Qd3 Qfe1 Bg6+
4b1Nb/1q2Q1bQ/kBp3Pn/2n2p1r/2R1PQ2/5BKR/5PQq/2R2rNq w - - 0 1 illegal: No possible last move
2k1qKQ1/2B1n3/1P3RP1/1N1r1Pb1/q1bbR1p1/N1QNn2B/5Qrp/1N3n2 w - - 0 1 illegal: No proof kernel
3QNrQ1/8/RpbqRP2/5QqN/Bbk5/P1r2b1Q/R1np2P1/nKB3q1 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 f4 h5 c4 d5 Kc2 e5 f6 Ke6 a3 b3+ Kb2 h4 f7 d4 c6 b6 c5 Kd5 c7 e4 f5 d3 c6 h3 f6 d2 g6 h2 g7 e3 Nf3 e2 Nh4 e1Q Qc2 Qe3 Bb5 Qg5 Nf5 Bd7 c8R Ne7 g8Q Na6 c7 Nc6 Ba4 Na5 Ra2 Bb4 Nd6 Rh3 Re1 h1Q Re6 Bc6 f8Q Rc3 Ne8 Qg1 Qf5+ Kc4 Qe7 Qd7 Qd8 Qd6 Rb8 Bf3 Rb7 Rc8 Ra7 Rb8 c8Q+ Bc6 Ka1 Ra8 Rc2 b2+ Ka2 Nb3 Qcd7 Nc7 Ra6 Nd5 Qdh7 Ne3 Qhh3 Kd4 Qc7 Na1 Qd8 Rd3 Nc3 b1B+ Kb2 Kc4 Ne4+ Rc3 Ng3 Ba2 Nh5 Bb3 Kb1 Rb8 Rb2 Bd1 Bc2 Bdf3 Ba4 Nec2 Ra2 Rb7 Qgg6 Rf7 Qg8 Rf8
Bnr3KN/2Q5/Pb3p1P/q1Rb3R/1Bq5/1p1NkrNQ/Pn4B1/1qb4B w - - 0 1 illegal: No possible last move
1Nr5/2brN2K/PpBk1p1R/n2N1P2/2bb2PB/r1qB2q1/4R3/QNn4Q w - - 0 1 legal: proof: c4 Nf6 b4 Ne4 c5 Nf6 b5 Ng8 b6 axb6 c6 Ra6 Nh3 Ra3 Ng1 Ra8 cxb7 e5 h4 g5 hxg5 Ba3 d4 Bc5 dxe5 Bf8 Kd2 Ke7 Kd3 d5 e4 c5 f4 h5 g4 d4 a4 h4 a5 h3 g6 h2 g7 f6 e6 Qc7 e5 c4+ Ke4 c3 Kf5 d3 Kg6 c2 f5 d2 Bd3 Nc6 b8N Nh6 Ne2 Ba6 Ra2 Bc4 Nec3 Nf7 a6 Rh3 Qf1 d1R Bg5 c1B Re2 Be3 Bh4 Bd4 Kh7 Na5 Qg2 Qc6 Qf1 Qg2 Qe1 Qg3 g8N+ Ke8 Qg1 Bd6 Nd5 Bc7 Qg2 Kd8 e7+ Kc8 e6 Ne5 e8B Kd8 Rf1 h1Q e7+ Kc8 Rff2 Qe1 Bc6 Qc3 Qh1 Rd2 Rh2 Rd1 Bc2 Nd3 e8Q+ Bd8 Re1 Nc1 Qe5 Bc7 Bd3 Rd2 Nge7+ Kd8 Nd7 Rc8 Ree2 Ke8 Nb8+ Kf7 Qd6 Kf8 Qa3 Rd1 Ba8 Ke8 Qa1 Kd8 Nbc6+ Kd7 Nb8+ Kd6 Bc6 Rd2 Qg1 Ra2 Qf1 Ra3 Rh1 Rh2 Qg1 Rf2 Rh3 Rf1 Qh1 Rd1 Be4 Na2 Nb4 Bg1 Bg5 Nc1 Rh6 Kc5 Bh4 Rd7 Bd3 Kd6 Nd5 Bd4
2q1nn1k/1b1q3P/1QR2PB1/4r1B1/QRK4p/B2BP3/p1b5/NQ1nbr1N w - - 0 1 illegal: No proof kernel
2RBnB1R/4R2p/1bN2b1P/2n1p1rk/B1KQ1q2/1P2n3/1PQ1b3/B2Nq2r w - - 0 1 illegal: Other
Q7/4BR1p/1rqB2P1/b1qqrK1B/1P3P2/p1r1kNRn/1NB1bn1N/6Q1 w - - 0 1 illegal: No possible last move, all moves rejected
3KR3/krr2qRp/2b3p1/1n3bPP/NQ2n2P/n3NqN1/q3QB2/1B2R1N1 w - - 0 1 illegal: No proof kernel
2Nr3k/3R3p/Q2P2bR/4bP2/r1K1P2R/q3q1rp/2N1QNB1/1bnRn1B1 w - - 0 1 illegal: No proof kernel
3nB3/r1Rb2P1/Q1bkqnK1/1R2pr2/1p2PN2/1q1Nb3/1B3QnP/1R4NR w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 g5 fxg5 Na6 gxh5 Nb8 b4 axb4 Kf2 Kd7 Ke3 b5 Ke4 c5 Kf5 e5 d4 b3 a4 b2 e4 b4 d6 f6 g6 c4 h6 c3 d5 c2 a5 Qb6 g7 Qa6 h7 Qc4 a6 Nc6 a7 Qb5 Qe2 Qa6 Kg6 f5 Na3 b1Q Nc4 f4 Bb2 c1N Qf2 Qd3 Rb1 Qb3 Be2 Nf6 Bh5 Rg8 h8R f3 Rh6 Nd3 Rh8 Rb8 a8Q Ne1 Rh6 Qaa2 Qa6 Rb7 Rh8 Ng2 Rh6 Ke8 d7+ Ke7 d8N Bd7 Ne6 Ra7 Nf4 Nd8 Rh8 Bc6 d6+ Kd7 Rh6 Be7 Rh8 Rf8 Rh6 Ne8 Rh8 Rf5 Rg8 Bh4 Rf8 Nf6 Rf7+ Ke8 Rd7 Bg5 Rc7 Bh6 d7+ Ke7 Nd6 Qe6 Nb7 Qab3 Nc5 Kd6 Ncd3 Bg5 Qd2 f2 Qc2 f1B Qf2 Nf7 d8R+ Qd7 Ne6 Be3 Rb8 Nd8 Nef4 Qde6 Rb5 Be2 Kh6 Bf3 Be8 Be2 Kg6 Bf1 Nc5 Bc4 Ncd3 Bd5 Qb7 Bd7 Qa6+ B5c6
r3bRb1/3R1NPQ/q1kn2Nq/1p4p1/R4P1B/3Q1n1P/3qr3/1BK1bQQ1 w - - 0 1 illegal: No proof kernel
R1Nr1N1q/2q3P1/RP1P1B1K/4N2n/n3rp1b/1n2Qr1B/1pb3N1/Q2B3k w - - 0 1 illegal: No proof kernel
QR2BRq1/1Brr2Pp/2q1bB1N/1KPn1QNb/3R1BP1/b2r4/n2p4/4k3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 g4+ Ke4 b4 f5 g6 a5 b6 d5+ Kb5 a4 c4 a3 b7 f4 e6 a2 e7 d3 e8Q+ Be6 g7 d4 Nh3 d2 Nc3+ Ke3 Ne4 f3 Bb2 d3 Qc2 d1B Bf6 d2 Neg5 f2 Bg2 f1R Nf7 Na6 b8B Rf3 Nhg5 Kf2 e4 Rd3 e5 Qd6 Nh6 Ra7 Bb7 Ne7 Rf1+ Ke2 Bc7 Nd5 Qa8 Be7 Rf4 Rc8 Rd4 Ke1 Bb8 Bf7 e6 Rc7 Rc1 Bf8 e7 a1Q e8B Qa2 Ra1 Bh5 Rb1 Rc3 Qf5 Rd3 Rb2 Bb3 Rb1+ Ke2 Rf1 Rd7 Rff4 Ke1 Rf2 Qe6 Bf4 Qd6 Bc8 Rac7 Bb7 Qb1 Ka5 Qc1 b5 Nab4 b6 Na2 Ka6 Qca3+ Kb5 Qe6 Rf3 Qg8 Rf2 Qc1 Rf3 Ba3 c5 Qc2 Bc6 Qb2 b7 Qb1 b8R Bc4+ Ka4 Qb6 Bb7 Qd6 Rf2 Ne3 Ka5 Be6 Kb5 Nd5 B6e5 Rd8 Qf8 Rc6 Be3 Bc8 Rf6 Bf5 B3f4 Rc7 Qf7 Be6 Qg6 Rh3 Rf8 Rd3 Qf5 Rdd7 Bf6 Qc6+
r3B1Q1/2K1q1p1/NNR5/R1P2r1P/2Qp2n1/1Q1PN1r1/2qkn1Nb/1b3B1q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Nf6 b4 Ng8 Ba3 Rh7 axb5 Qc7 b6 Rh8 b5 Qd8 Bb4 cxb4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 e4+ Kd4 c4 f5 h4 a5 b7 d5 d3 a4 e6 b3 h6 a3 e5 a2 e7 b2 e8B Rh7 c5 Qa5 e6 Qa6 e7 Qa7 b6 Nf6 Qb3 Nc6 b8N Qb7 Na6 Bd7 Nd2 b1Q Nh3 Qc2 Nc4 Ng4 Ne3 Be6 Rh2 Qa7 b7 Bf7 b8N Qc7+ Kf3 f4 Nd7 Rh8 h7 Qa7 Qb8 Kc3 Nb6 Qd7 Rh1 Kd2 Rg1 Bg8 h5 Nd4+ Kg2 f3+ Kg3 f2 Nf4 Qa7 Nfg2 Ne2+ Kf3 d4 Ke4 Be6 Qb7 Rg8 h8Q Bc4 Qh7 Rh8 Qg6 Rh6 Qe6 Rg6 Qg8 Bb3 Qc4 Ba4 Kd5 Bb3 Re1 a1Q Qb8 Rg5+ Kd6 Ba2 Rb1 Qb7 Rb5 Bb1 Ra5 Qe4 Kc7 Rf5 Qe6 Rf3 Qc4 Rg3 Bb5 Qe6 e8Q Be7 Qg8 Bd6+ Kb7 Be5 Be8 Bf4 Qc7 Be5 Qcf7 Qe7+ Kc6 Rh3 Qb3 Bh2 Qfc4 Rg3 Nh4 Qe4+ Kc7 Qh1 Nhg2 Qa4 Bg6 Qe8 Bf7 Qe4 Be8 Qe7+ Bd7 Qc1 Ne1 Nh6 Bh3 f1R Bg2 Rf7 Bf1 Rg6+ Rg3 Rf4 N1g2 Qc2 Rg5 Rf2+ Re5 Rf4 Re6 Rf5+ Rd6 Rg3 Rc6 Qg5 Be8 Ng4 Ra3 Qf6 Ra5 Qe7+
1RbQR1rR/4qP2/2P3R1/rr3NNQ/Kp2Bp1B/Nn5n/1q1bP1n1/k7 w - - 0 1 illegal: No possible last move, all moves rejected
nN1bR1N1/1N3pk1/2b2rb1/5q1Q/1K1nn3/pNBR2Pr/1P2PqB1/Q5R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 h5 Kd2 a5 Kc3 c5 g3 a4 d6 h4 d5 a3 b6 f3 g6 c4 g7 f2 b7 h3 Qe1 h2 Bg2 f1Q Nh3 Qb6 Ng5 Nd7 b8N Qbf2 Ne4 Nb6 Nbd2 Bf5 Nc5 Be7 Rg1 h1B Nb7 Bd8 Nb3 Rh3 Kb4 c3 Bd2 c2 Rd1 c1N Bc3 Bg6 Rd3 Nf6 g8N Kf8 d7 Ne4 d6 Ra6 Qd1 Na8 Qe1 Bf6 d8Q+ Kg7 d7 Qf5 Qe7 Q1f2 d8R Re6 Re8 Rc6 N3a5 Nb3 Qa1 Nd4 Qc5 Bd8 Nb3 Rf6 Qa5 Qg4 Qg5 Qgf5 Qh5 Ng5 Bf1 Bc6 Bg2 Ne4
3nR1Qb/K4p1B/1N4r1/2r3qP/nRQR1NN1/2P1qPr1/pb2b2B/k6N w - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 Kd2 Ke7 Ke3 Ke6 Kd4 a5 h4 g5 e4 d5 c6 g3 c7 a4 c3 a3 b6 g2 h5 g4 f3 a2 b7 g3 Qb3 Ra6 Nd2 Ne7 Kc5 Rg8 Qc4 Nbc6 Nh3 g1B+ Kb5 g2 b8Q Bh6 Rb1 Bd4 Bd3 g1Q Rb4 Qe3 Rd1 Rg3 Nf1 Bb7 Qa8 Nc8 Bd2 Nb6 c8N Na4 Nb6 Qh4 Qg8 Qhg5 Bc2 Nd8 Nf4+ Ke7 e6 Kd6 e7 Bh8 e8R d4+ Nbd5 d3 e5+ Kd7 e6+ Kd6 Be1 d2 e7 Ke5 Bd3 Rg6 Nb6 Ba6+ Ka5 Bb5 Bf2 Ba6 Bg1 Bf8 Bh2 Bb5 Rc1 d1R Bf5 Rdd6 Rd1 Rd5 Rd4 Rc5 Bc2 Bd7+ Ka6 Bb5+ Ka7 Bh6 Nd2 Bf8 Ne4 Ba6 Qf1 Be2 Nf2 Bh6 Nh1 Bf8 Nbd5 Kd6 Nb6+ Kc6 Rbc4 Kb5 Rb4+ Ka5 Ka8 Nb2 Rb3 Rh6 Kb8 Rcc6 Rc4 Bd1 Bh7 Rhg6 Ka7 Rc8 Qd3 Be2 Rd4 Rc4 Nbd5 Ka4 Rb5 Ka3 Nb6 Nb7 Ra8 Na4 e8N Bb4 Nf6 Kb2 Rad8 Rc5 Ng4 Ka1 Re8 Ba3 Rbb4 Nd8 Qc4 Bb2
5knN/2Qbnp2/N1b3qP/B6P/1P1qB2b/p4KR1/1NQ1R2r/BqB1r3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 h4 g5 d4 c5 e4 c4 b4 f3 d6 c3 d7+ Ke7 b6 c2 b7 a4 h6 g4 d5 a3 e5 Nc6 b8N Na5 e6 Qe8 d8B+ Kd6 h5 Be7 Ne2 Bg5 e7 Rh7 Bg2 Bd7 Ra2 Rg7 Nbc3 Rg6 Nf4 Nc6 Ba5 Qd8 e8Q Nce7 Rh3 Bh4+ Rg3 Rg7 Ke3 f2 Na4 f1B Nb2 Bfb5 Ng6 Bbc6 Be4 Qb6+ Kf4 Qd4 Na6 Rc8 Qf8 Re8 Nh8 Rg5 Qd2 Re5 Qf2 Rc8 Qd8 Rc7 Rb3 g3 Kf3 g2 Qe2 g1Q Qc4 Nf5 Rc3 Rc8 Qc7+ Ke7 d6+ Kf8 Rd3 Qg6 Rb3 Be6 d7 Nfe7 d8B Bed7 Re3 Nd5 Bf6 Nde7 Re2 Re8 Rg2 Rg5 Rg1 Rg2 Qc5 Rh2 Rg3 Rd8 Bd2 c1Q Qc2 Qb1 Bc1 Qd6 Na4 Re8 Ba1 Qe5 Nb2 Qd4 Bd5 Nf5 Qb3 Ke7 Na4 Qb6 Rd2 Qa7 Nb2 Kf8 Qc2 Re1 Be4 Qd4 Re2 Nfe7
2QR3q/1nN1Rp1R/1Q1r1P1K/B1n4P/pQbr4/5bPr/1b4BN/3k1qQ1 w - - 0 1 illegal: No proof kernel
n1r2n2/5pkp/b2P2Bq/1r1R1qNR/3b2b1/K3NN2/R2P1P1Q/1Q1N1Br1 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 h4 Bc8 hxg5 c5 b4 Kd7 b6 Nc6 b5 Nb8 Ba3 Ke8 Bb4 cxb4 g4 a5 c4 e5 c5 e4 c6 a4 g6 b3 b7 a3 c7 e3 g7 a2 g5 b2 b6 Ra5 g6 Qg5 Rh5 Nc6 b8R Ra4 b7 Ra3 Nf3 Nce7 Nc3 Ra7 Qb1 Qh6 Kd1 e2+ Kc2 e1Q Kb3 Qe6 Nd1 Nf6 g8N Ra5 g7 Rb5+ Ka3 Ng6+ Ne7 Nd7 g8N Bg7 Nf5 Kf8 Nf6 Nb6 Nfe3 Qf5 Ne4 Bd4 Neg5 Kg7 Ra8 Rd8 b8Q Ba6 c8B Nf8 Qh2 Re8 Rb8 Na8 d6 Rd8 Bb7 Re8 Be4 Rc8 Qc1 b1B Rb6 Qfe6 Bg6 Bf5 Qb1 Bg4 Rc6 Qe4 Rc5 Qc2 Rd5 Qf5 Qb3 Rb4 Rc1 Rb6 Rc2 a1R+ Ra2 Rac1 Qb1 Rbb8 Nc3 Re1 Ncd1 Rb5 Be2 Rh1 Bf1 Rg1
1bbB4/1k2P3/2Rq1KN1/QN3b2/QP2B3/2p2N1n/p1nR1PQ1/1r2Qnqr w - - 0 1 illegal: No proof kernel
3rbK2/1bQ1PN1k/Bqr1P2n/1P1R2n1/6pp/1N3B1q/N2B1B1b/4rR1Q w - - 0 1 illegal: No proof kernel
r3RNqb/k3Ppn1/q7/2P1NpR1/rQ2B2K/2B1QQ1b/P2R4/bQ1rn3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e6 dxc5 a4 f5 exf5 b3 Rh6 bxa4 Rh7 a5 Rh8 c6 g5 Kf2 d5 Kg3 b5 c4 b4 h4 g4 e4 d4 h6 d3 c7 Kd7 h5 Kc6 h7 Kb7 c5 d2 e5 b3 h6 b2 a6+ Kc6 a7 Kb7 e6 Nd7 e7 Ngf6 Rh5 Bg7 Ne2 Re8 h8Q Rb8 h7 Ne4+ Kh4 g3 Nf4 g2 Rg5 g1B Bg2 Nf8 Ne6 B1d4 Na3 b1Q Bb2 Qd3 Nc4 Ka6 Qg4 Rb4 Rd1 Bb7 c8Q Nf2 Qb8 Qc8 Bh1 Bg2 Qe2 Bf1 Be4 Bh3 Qf1 Bge5 Qf6 Qe2 h8R Nd3 Ba1 Bb2 Qh1 Bec3 Qd4 Rd8 Qf3 Ne1 Qde3 Re8 Rhg8 Bh8 Ne5 Rc4 Qbb3 Bc3 Qb1 Qd3 Rc1 d1R Rc2 Qdd8 Rd2 Rb4 Nf4 Ne6 Nfg6 Ng7 Bb2 Qb6 a8Q+ Qa7 Qb8 Ra4 Qb4 Qd8 Bc1 Ba1 Bb2 Qab6 Bc3 Ka7 Rf8 Qa6 Rg8 Qd7 Rf8 Ra8 Rb8 Qd8 Rc8 Qg8 Re8 Rc8 Nf8 Ra8
Qn2N1nr/1q1p2Q1/3PB3/Pr2B1K1/3b4/qp1R2P1/1k2bb1Q/1B1nRB1N w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 b5 c4 e5 fxe5 Bh6 cxb5 Bf8 b4 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 e4+ Kd4 a4 c5 g6 f5 a5 h5 g7 c4 b6 b3 b7 c3 e6 c2 e5 h4 e7 h3 e8Q h2 e6 Rh7 e7 Rh4+ Qg4 Nh6 g8B Nc6 b8Q Qc7+ Kg5+ f4 Be6 Ng8 Nc3 Rh8 Nd5 Bg7 Nh3 Ba6 Nf6 Qd6 Nf2 Qa3 g3 Be2 Qeh5 Ra6 e8B Rb6 Qa8 Nb8 Bg6 Rb4 d3 Kc3 d4 f3 d5 Rb5 Bf4 c1B Ne8 Be3 Re1 Bgd4 Bb1 Kb2 Rg1 h1Q Qh2 Qg2 Nh1 f2 Rd1 Qf3 Rd3 Qg2 Kg6 Qf3 d6 Qd5 Be5 Qb7 Bh3 f1N Bg2 Nd2 Re1 Nc4 Bf1 Bf2 Kg5 Ne3 Qe4 Ng2 Qg6 Ne3 Qg7 Nd1
2bbrN2/1B1p4/1QPqR3/B2QnNNk/K1RPn1qp/2Q3Pb/2q4r/4Q3 w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 d4 Kf7 Kd2 a5 Kc3 h5 Kb3 e5 f4 h3 c4 h2 c6 e4 f6 Kg6 g3 h4 b6 e3 b7 e2 c5 e1Q f5+ Kh7 c7 Qe5 f7 Qee7 f6 Kg6 Ba6 Rh7 Nc3 Qe3 Nh3 Qh6 Ne4 Rh8 Ka4 Be7 f8Q Nc6 b8Q Ne5 f7 Nf6 Nd6 Ne4 Re1 h1B Nf5 Bg2 Ng5 Bh3 Bd2 Ra7 Qdb1 Kh5 Bb7 Qd6 Qg8 Qe8 f8N Bd8 Qe6 Qg6 Qd5 Ra6 Qa7 Rb6 Re3 Rb2 Qb6 Rc2 Bc3 Rh2 Qe1 Rg8 Rc1 Qh7 Ka3 a4 Ba5 Qhg6 Kb4 a3 Ka4 a2 Rc4 a1Q+ Kb5 Qc3 Ka4 Nd2 Re2 Nef3 Re5 Ne4 Re6 Ne5 Ba6 Bb7 c8Q Rh8 Qcc7 Bc8 Bb7 Qf3 c6 Qg4 Qb3 Qh7 Qcb6 Qg6 Qbc3 Rg8 Nfh7 Re8 Nf8 Qe2 Ngh7 Qgg4 Ng5 Qc2+
2Kr3N/2P4n/pN1rbk2/P1q2r2/B5qN/B1N1nBQ1/Q1pb2P1/2q1R2R w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 g5 h4 Kf7 hxg5 Ke8 bxc5 d5 c4 dxc4 Ke2 Kf7 Ke3 h5 Kf4 b5 Ke5 c3 f4 e6 d4 c2 a4 b4 f6 a6 g6+ Ke8 g7 Kf7 f5 b3 a5 b2 d5 h4 c6 h3 d6 h2 d7 Rh5 c7 Ne7 Kd6 e5 Nf3 e4 Qe1 e3 Bb5 e2 Rf1 h1R Nh4 Rh7 Qg3 e1Q Ba4 Qe8 d8Q Qb5 Qd7 Qee2 Qe6+ Ke8 g8B Nd7 Qa2 Bh6 Bc4 Bd2 Bd5 Nf8 Nc3 Bd7 Rd1 Rf1 Bb7 b1Q Ba3 Rf3 Rh1 Rd8 Be4 Q1b2 Rae1 Qc1 Ba8 Rf4 Bb7 Qg4 Bf3 Ng6 f7+ Kf8 Bb2 Kg7 f8N Be6+ Nd7 Nd5 Ba3 Nf8 f6+ Kf7 Qf2 Rf5 Qg3 Qbb4+ Kc6 Qe7 Kb7 Qc5 Nb6 Rd6 Kb8 Ne3 Kb7 Kg8 f7+ Kg7 Kb8 Kf6 Kb7 Nd7 f8N Rg7 Nfg6 Nf8 Nh8 Rgd7 Kb8 Nh7 Kc8 Rd8+
q1N1kq2/b1P1BN1P/1N2Nn1p/Q1PR2rR/1nK1p2Q/5n2/B7/r4rBb w - - 0 1 illegal: No proof kernel
1B4R1/2P3PR/3NB1Rr/Q1p2qb1/R1bk4/3P1pNn/n1Q2rqq/4KQ1b w - - 0 1 illegal: No proof kernel
q3R3/2P3p1/1b2Nk1N/rQ1RR2P/1N1rpB2/1QK1nq1q/2P1b1Bn/6Rn w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 Kf7 b4 d5 h4 a5 f4 e5 f6 e4 f5 g3 h5 a4 c6 a3 b6 a2 c7 g2 b7 d4 b5 d3 b6 Ra3 Ne2 g1N Bg2 Ra8 Qf1 Nf3+ Kc3 d2 Rg1 d1Q Bf4 Q8d6 Nd4 Nc6 b8R Nge7 b7 Nb4 Qb5 Ra5 Ra8 Rh6 b8Q Qd7 Q8b6 Bb7 Rd8 Ba6 Qb8 Qe6 Rd5 Nd3 Qb3 Nf2 Q8b5 Nh1 Re5 Nh2 Rd5 Kg8 f7+ Kh8 f6 Nf5 Re5 Bc5 f8N Bb6 f7 Ne3 Nf5 Qf3 Rd5 Rf6 Nh6 Qeh3 Ne6 Rg6 f8R+ Kh7 Nc5 Rd6 Ne6 Rd7 Re5 Rd5 Re8 Rd4 Q5d5 Bc4 Qdb5 Be2 Rd1 Rb4 Rdd5 Rba4 Na3 Rd4 Rg1 a1Q+ Qb2 Qff1 Nc4 Qff3 Qb3 Qa3 Qb1 Qf8 Nb2 Qg8 Nd3 Qh8 Re7 Qa8 Qb5 Kh8 Nb4 Kh7 Qb3 Kh8 Ng4 Kg8 Re8+ Kf7 Nh6+ Kf6
4B3/2p1NPn1/1K3k1b/1N4r1/q1R1R1R1/B3pnP1/bb1P2BQ/1Qr1qB1n w - - 0 1 illegal: Other
6b1/1P4p1/1p1N1PbN/KRn1n1B1/1R1q2r1/1r1QN1r1/Bk2NP1Q/b2q2B1 w - - 0 1 illegal: No possible last move, all moves rejected
3bB3/bP1pr1kB/NRQ3P1/1n5q/2Q3R1/1QPq1Q2/1p4r1/Nb1nK1Br w - - 0 1 illegal: No proof kernel
RNBR4/Bp1Bnk2/1P3p2/P1P1n1Q1/rN1rQ1R1/2bb4/3b2K1/B1qq3q w - - 0 1 legal: proof: f4 c5 d4 e5 fxe5 cxd4 g4 h5 gxh5 Qg5 Be3 Qe7 Bc1 Qd8 Na3 Qg5 Nb5 Qf6 Nxa7 Qd8 Kf2 d5 h4 g5 a4 g4 e4 d3 c4 d2 b4 g3+ Kg2 d4 b5 d3 h6 Bg7 h5 Bd7 e6 Qb6 h7 Bd4 e7 Qe6 e5 Qh6 Rh4 Bg4 Nf3 Qg5 h6 Bc3 Nd4 Bc8 Qh5 d1Q Rg4 d2 Ndc6 Qh4 Qg5 Bd7 Nb4 Bc8 Nac6 Na6 Nb8 Qc2 c5 Qh5 b6 d1Q+ Be2 Bb2 Bf4 Qcc1 Bc4 Bd4 Be6 Bc3 Ra2 Bd7 a5 Bb5 Rd2 Qh4 Rd5 Bd3 Bc8 Qh5 Na2 Nb4 Rd4 Nc6 Nb4 Nf6 Rd7 Rf8 h8B Nd5 h7 Rg8 Bg7 Qh6 h8R Qh4 Bh6 f6 Rd8+ Kf7 e8B+ Ke7 Bed7 Kf7 Be3 Nde7 Bd4 Bd2 Bf8 Qh7 Ba1 Qe4+ Kh3 g2 Kh2 g1B+ Kg3 Ng6 Bd6 Nge7 Bc7 Qee1+ Kg2 Bd4 Bd6 Rg6 Rhe8 B4c3 e6+ Kg7 Rf8 Ne5 Rh8 Nd5 e7 Kf7 N8a6 Rh6 Bb8 Rh4 Ba7 Qh1+ Kg3 Nf4 Kf2 Nfg6 e8Q+ Kg7 Qe6 Rb8 Qef5 Kf7 Qe4 Ne7 Kg3 Ra8 Nb8 Rh2 N8a6 Re2 Rde8 Rf2 Bc6 Bb2 Bf5 Rd8 Reg8 Rd6 Ra8 Be1 Bc8 Bbc3 Nb8 Rd4 Ba4 Qa3 Rd8 Ra2+ Kf4 Bed2+ Kg3 Qb2 Bad7 Qbc1 Kf2 Ra4 Kg3 Qh4+ Kg2 Qhh1+
3rBrNq/bp4P1/4RqQ1/2Qp3N/2bnQ3/1bP3KN/Q4RqP/2nkB3 w - - 0 1 illegal: No proof kernel
1b1rB1Q1/1p1rRPBQ/kPP3b1/B2q4/3npR2/B1K1n2N/q4Qn1/N3r3 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 cxd4 g4 h5 gxh5 Qc7 Na3 Qb6 Nb1 Qd8 Na3 a6 Nb5 Qb6 Na7 Qc7 Bxa6 Qb6 Bf1 Qd8 Kd2 e5 f4 g5 a4 d5 b4 Kd7 c4 Kc7 h4 Kb6 h6 d3 c5+ Ka6 b5+ Ka5 h7 g4 h5 e4 f6 g3 f5 g2 f7 d4 h6 Qb6 f6 Ne7 Qc2 Nd5 Nh3 g1Q Ba3 Qc7 b6 Qe7 Nc6+ Ka6 a5 Qg7 Nb4+ Kb5 a6 Nf4 a7 Rg8 h8B Qd7 h7 Bd6 f8B Qgf7 Bhg7 Ng2 h8Q Qa2 Qh7 Nc6 f7 Rh8 Rc1 Bb8 Be2 Qd8 Rhf1 Bf5 Rf4 Qdd5 Qb2 Bg6 Nc2+ Ka6 Na1 Rg8 Bb4 Rh8 Ba5 Rg8 Be7 Rd8 Bd1 Rd7 Ba4 Bc7 Rc4 Rad8 Bd6 Bb8 a8Q+ Na7 Kd1 d2 Kc2 d3+ Kc3 d1R Qf2 d2 Rd4 Rc7 Be8 Re1 c6 Rcd7 Ba3 d1N+ Kb4 Nde3 Kc3 Qh5 Rd6 Qhd5 Re6 Bd6 Qc8 Bb8 Re7 Nb5+ Kb4 Nd4 Kc3 Rd6 Qg4 Bh5 Qgg6 R6d7 Qg8 Qe6 Qh6 Qed5 Qhh7 Bg6
2R1bn1N/bpR2PP1/1r2p2Q/1N1Q4/nq4b1/1nR3N1/K2NP3/1rBkq1B1 w - - 0 1 legal: proof: g4 a5 c4 g5 h4 f5 b4 d5 cxd5 Nf6 bxa5 Ra6 Bh3 Ng8 hxg5 Rc6 g6 Ra6 g5 Ra8 Bg4 fxg4 a4 Kd7 d4 Kd6 Kd2 c5 Kc2 h5 Kb2 e6 f4 h4 f5 c4 g7 c3+ Ka2 g3 a6 c2 a7 h3 a5 h2 a6 g2 g6 Qh4 f6 Rh5 Nc3 Qe4 Nb5+ Kd7 d6 Kc6 d5+ Kc5 d7 Kb4 d8N Nd7 d6 Rd5 Nf3 g1Q Nd2 Rf5 Nf7 Nb6 d7 Rf1 d8B Na4 Nh8 Bc5 f7 Ne7 g8N Bd7 g7 Be8 Nh6 Ng6 Bb6 Nf8 Nf5 Rc8 a8Q Rc6 Ba7 Rb6 Ng3 Qf2 Qb8 Qe1 Qf4 Bf2 Rg1 h1B Qh6 Bf3 Rh1 Bg4 Rh3 Rd6 Be3 Rb6 a7 Rh1 a8R Rg1 Nc7 Kc3 Rc8 Qb4 Rb1 Qd6 Rb5 Qb4 Rd5 Rf1 Rd7 Bg1 Nf3 Bf2 Qd5 Rg1 Nd2 Rh1 Ba3 c1N+ Ka1 Kc2 Nb5+ Rc6 Nh5 Qd1 Rdc7 Nb3+ Ka2 Qg1 Ba7 Qg3 Be3 Rb1 Bc1 Kd1 Bc5 Qg1 Rc3 Qe1 Ng3 Be3 Be7 Bb6 Bc5 Ba7 Bg1 Rb6
1Q2B1Kb/BpnPQr2/1n1B1qb1/k1p2R1P/1b1qPq1r/5B2/4R3/N3N2Q w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 g5 Kd4 f5 h4 g4 e4 b3 a4 c6 h6 Kc7 e6 Kb6 Ke5 b2 d4 g3 a5+ Kc7 h5 f4 a6 Kb6 e7 f3 e8B g2 h7 f2 d6 Bd7 a7 Be7 d5 Bf5 d7 Bh4 d6 Bg3+ Bf4 Bh2 Ra5 Na6 Be2 f1Q Nf3 g1B Ne1 Bg6 Ke6 Ne7 Rf5 Nd5 Bf3 Rf8 h8B Bd4 Nd2 b1Q Nb3 Rf7 Na1 Qc1 Bhe5 Kb5 Be3 Nb6 Rg1 Qd2 Rg2 Ka5 Re2 Rc8 Bf2 Qf4 a8Q Bc5 Bg1 Bb4 Qb8 Qf2 Qc1 Qd4 Be3 Qdg5 d8Q Rcc7 d7 c5 Qe7 Rc6+ Bd6 Bg3 Bf2 Bh4 Bg1 Qh6 Bh2 Bf6 Ng2 Be5 Qh1 Bh8 Ne1 Rh7 Qg7 Nc7+ Ke7 Qhg5+ Kf8 Qgh4 Kg8 Qhf6 Qe7 Rf7 Qbd8 Na6 Bb8 Nc7 Ba7 Rd6 Qb8 Re6 Rd5 Re5 Bg3 Rg5 Rf5 Rg4 Bh2 Rh4 Bg3 Qg4 Bd6 Qf4
3nr2n/P7/PBN2p1k/7b/N4Rn1/b1pBR1P1/Qr4Qq/BBqK2Rq w - - 0 1 illegal: No possible last move, all moves rejected
k1q3b1/P1n2BPb/RR1Bn3/N2NPn2/1K4r1/1pbp4/1rqR1B2/2Q1Q1R1 w - - 0 1 illegal: No proof kernel
1K2B3/PQ1p2rn/4N2b/Nb2Pq2/1B2n1q1/1B2RpPk/2rQ1Bq1/1N1R1r2 w - - 0 1 illegal: No proof kernel
3QrB2/pqR4n/1np4P/1PR2B2/b1rP2N1/3b2QN/K2b2R1/1qkqB2R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 d4 Kf6 Kd2 Kg5 Kc2 f5 Kb2 g6 h4+ Kg4 e4+ f3 h6 f4 e5 c6 d6 g5 e6 Qc7 e7 Nd7 e8R Nb6 h5 Bf5 h7 Bh6 d7 Bd3 d8Q Rb8 Nh3 Qb7 Ka2 Nf6 Re2 f2 Ba3 Kf3 Qb3 g4 Nc3 g3 Ne4 g2 Rc1 g1Q Rc5 Re8 h8R Nh7 Nf6 Qg8 Re7 Qf8 Rc7 Ke3 Rg8 Kd2 Rg2 f3 Ng4 Qe7 Be2 f1Q Qg8 Be3 h6 f2 Qb3 Bc2 Bd3 Qd1 Bf5 Bg5 Qg3 Ba4 Bb2 Qd6 Bc3+ Kc1 Be1+ Bc2 Be6 f1B Bc8 Bd3 Bf5 Na8 b6 Bd2 Re5 Ba4 b5 Qb4 Rd5 Re3 Re5 Qa6 b7 Nb6 Rd5 Ra8 b8B Qb7 Re7 Rf3 Bd6 Rc8 Rc7 Rf1 Qe7 Re8 Qd8 Rf2 Be7 Re2 Bf8 R2e5 Rdd7 Rc5 Rd5 Rc4 Rc5 Qb1+
RN1qNQ2/p3P2Q/1N2BBb1/P3nn2/P1p1Q3/Rr1r2b1/5qq1/3b1kNK w - - 0 1 illegal: No possible last move, all moves rejected
n4q2/p2pr1q1/4BP1q/Q2nk1bB/KN3NPr/1N1Q2P1/BR1b1B2/3b1R2 w - - 0 1 legal: proof: e4 c5 a4 g5 d4 b5 axb5 f5 dxc5 fxe4 h3 g4 hxg4 Ba6 Be2 Bb7 Bf1 Bc8 Kd2 Kf7 Kc3 Kf6 Kb4 h5 c4 e5 b6 e3 b7 e2 Be3 e1Q+ Nd2 h4 Be2 e4 Ra2 h3 Ka4 h2 b4 Ke5 c6 Rh7 c7 Bh6 b5 Na6 b8N Rf7 b6 Rf5 c5 Ke6 b7 Qf1 c6 Rd5 Rb2 Qe7 Nb3 Ke5 Nh3 Qf7 Qd3 Ne7 Nf4 Qd1 Rf1 h1Q f3 Rb5 Bf2 Qc2 Bd1 e3 Be2 Nb4 Na6 Qf8 b8Q Qc3 Qb6 Bb7 c8B Nbd5 c7 Bg5 Qa5 Qhh6 Nb4 Bc6 Bb7 Re8 c8B Nc7 Ba8 Ned5 Ba6 Re7 Bd1 Bb7 Be2 Rb6 Bc4 Ba6 Bd1 e2 Bc6 e1B B6b5 Nf6 Be6 Bd2 Bbc4+ Rb5 g3 Bb7 Bc2 Na8 Bb1 Nd5 Ba2 Rb6 Bf7 Rf6 Bh5 Rff7 Ne6 Rh7 f4+ Kf6 f5 Ke5 Nf4 Bc6+ Ka3 Ba4 Bb5 Nf6 Bf7 Qh4 Be8 Qd4 Nc5 Bd1 Nb3 Kd6 Bc4 Rh5 Bcf7 Nd5 Ka4 Qdg7 f6 Ke5 Be6 Rh6 Bg6 Qh5 Be8 Qhg6 B8f7 Rh4 Be8 Q6h7 Bh5 Qhh6
nQb1q1n1/4B3/2N2r2/BbRN4/p1Nn1pnr/PB6/QR1PK1P1/2k1Bn2 w - - 0 1 legal: proof: f4 d5 c4 g5 e4 gxf4 exd5 b5 cxb5 Bh6 h4 Bg5 hxg5 Ba6 Qb3 Bb7 Qd1 Bc8 b4 f3 d6 Kd7 g6 Ke6 b6 Kd5 d7 Kd4 g7 a5 a3 h5 b5 c5 b7 e5 b6 f5 Ba6 c4 Qb3 a4 Qc2 e4 Rh2 f4 Rh1 f2+ Kd1 f1B Bb5 h4 Nh3 c3 Bb2 e3 Ng5 h3 Nf7 h2 Bc4 Na6 b8B Ne7 g8N Qe8 d8B Nc7 b7 Ra6 Nd6 Na8 Ra2 Rh4 Bb3 Bb5 Ba5 e2+ Ke1 Rc6 Ba7+ Rb6 Rf1 h1N b8Q Ng3 Kf2 e1N Ba1 Nd5 Ne7 Nf3 Rc1 Nh2 Qb2 Kd3 Ke1 c2 Nc3 Ne3 Ncd5 Nef1 Qb1 Ra6 Bf2 Ne4 Bf6 Ng4 Rb2 Rc6 Bg5 Nef6 Qa2 Ng8 Bg3 N4h6 Kf2 Ng4+ Kf3 Rb6 Be1 Ra6 Nc6 Rb6 Nd4 Ra6 Be7 Rc6 Rcb1 c1N Ra1 Ne2 Rc1 Rb6 Rc5 Ra6 Nc4 Rf6 Nc6 Ne5+ Kf2 Nd4 Kg1 Ke2 Rc2 Kd1 Rb2+ Kc1 Kf2 Nc2 Ke2 Ng4 Qb7 Rhh6 Qb6 Rh4 Qb8 Nd4+
1rQB1nQ1/6QN/2NP2Q1/1p1B4/1Ppb1rbR/2RR3n/2n2Pnq/n2K2k1 w - - 0 1 legal: proof: e4 a5 b4 h5 c4 f5 exf5 d5 cxd5 h4 Qb3 h3 gxh3 a4 h4 axb3 h5 Ra4 Bd3 Ra5 Bf1 Ra8 a4 Kd7 d4 Kd6 h4 c5 a5 g5 f6 e5 f7 b5 h6 g4 h7 b2 h5 g3 a6 g2 a7 c4 h6 e4 Ne2 g1N Bg5 e3 Nd2 b1N Rh4 Na3 Ne4+ Kd7 d6 Ke6 d5+ Kf5 d7 Bg7 f8Q+ Nf6 Qd6 Qc7 d8R Ng4 Rc1 Bd4 Bg2 Nh3 Rc3 Nd7 Nf6 Rb8 a8Q Nf8 Kd1 Nc2 Qb6 Rg8 h8Q Na1 h7 Qh2 Qg7 Bd7 h8Q Bc8 Qgc7 Rg7 Qba6 Rf7 Qg7 Bd7 Nh7 Rf6 Bf1 Ke4 Qcc8 Rf4 Qag6+ Bf5 Rd6 Kf3 Bd8 Be6 Nc1 Bd7 Nb3 Be6 Be2+ Kg2 Na5 Kg1 Nc6 Bf5 Bf3 e2+ Kc1 e1N Kd1 Ng2 Rd7 Rb6 Qab8 Re4 Qg3 Rb8 Qg8 Be6 Qe5 Bf5 Qeg7 Rf4 Re7 Be5 d6 Bd4 Ree3 Bd7 Red3 N4e3+ Ke2 Bf5 Bd5 Nec2 Kd1 Bg4+
1N2n1R1/Qr1b2nQ/2Pr4/B1b5/1n1NB1Kn/R2p1P2/B1pNq2P/N1nk4 w - - 0 1 illegal: No proof kernel
2nR2B1/N1npr3/qk3Bb1/2p2R1P/3rRP1Q/3nbR2/1n2n2P/NK3Q1B w - - 0 1 illegal: No proof kernel
8/1P1pn1p1/3P1qR1/k3B1B1/1N3rR1/rbb1nQ1r/QP1r1N1r/R1Q2R1K w - - 0 1 illegal: No possible last move, all moves rejected
4nr1N/PbK1n3/P1BrNNR1/3qRn2/4QN2/2Qp1Pp1/1bnB1kn1/1B6 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 g5 Kd5 b5 a4 e5 c4 g4 h4 d3 c5 e4 a6 d2 f3 e3 a5 b4 a7 d6 c6 e2 h6 e1N h7 g3 a6 b3 h5 Kg5 c7 Kf4 h6 Ke3 f6 b2 f7 Ng2 Ne2 Nd7 Kc6 d5 Nbc3 b1N Ra5 d4 Qe1 Ndf6 Re5+ Kd3 Nd5 d1N Bd2 Ba3 f8N Bb2 Ne6 Ne8 Nf6 Ne7+ Kb6 Rg8 h8N Nde3 h7 Bb7 Rh6 Ng7 Rg6 Qd5 c8B N3f5 Kc7 Rd8 Bd7 Na3 Bc6 Rd6 Qb1+ Nc2 Qe1 Re8 Qb1 Rf8 Qe1 Na3 N2f4+ Kc2 Bc4 d3 Qe4 Kd1 Ba2 Nc2 Bb1 Re8 Be3 Ke1 Bd2+ Kf2 Nf7 Nh5 h8Q Rf8 Qg7 Nce1 Nh8 Nc2 Qh7 Nhg7 Qh1 Bd4 Qc1 Bc3 Qa3 Bb2 Qc3 Ne8+
R2nbR2/QR1N1n1b/2rb2B1/3R4/pp1q1kPP/1r5P/1BbK1n1N/3Q1N2 w - - 0 1 illegal: No proof kernel
3Q1rr1/bn1Q2R1/3Q2p1/NP2K2B/1PP5/p1kn2rb/1R1n1BQR/5qNn w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 a5 c4 g6 h4 d3 b4 d2 h6 d4 h5 d3 h7 a4 h6 a3 Be2 Nc6 Ra2 Na5 Rb2 Nb7 Rh2 e5+ Ke4 Bc5 f4 Qd7 Bh5 Ba7 Qe2 d1N Nd2 Qd8 Nb3 d2 Qg2 Qf8 Na5 Nf2+ Kd5 d1N Be3 e4 Bc5 Nh1 Bf2 e3 Ke4 Ke7 f6+ Kd6 f7 e2 f5 e1R+ Kf4 Re3 f6 Rg3 Ke4 Qg7 f8R Bh3 Rf7 Qf8 Rg7 Ke6 f7 Nf6+ Kf4 Rg8 h8Q Ne4 h7 Rd8 Ra2 Nd2 Rb2 Qe7 f8Q Rc8 Rc2 Nb2 Qe8 Kf6 Qd7 Rgf8 Qg8 Qe2 h8Q Qf1 Q8d5 Rg8 Qd3 Rcf8 Q3d5 Nb3 Ke4 Nd3 Qc5 Nd2+ Kd5 Kg5 Rb2 Kf4 Qcd6+ Ne5 Be1 Ke3 Bf2+ Kd3 Q6c6 Nef3 Qcd6 Ne1 Ke5+ Kc3 Qh6 Ra8 Qg5 Raf8 Qgd8 Nd3+
3rb2N/1Nq1n1B1/2p2P2/pb4P1/1QQ2rB1/Rrb1k1PQ/K2RB2n/Q2r4 w - - 0 1 illegal: No proof kernel
3Qrb1B/2N4Q/bPP1R3/K7/2q1QBbR/P3np2/kp1b3N/1nBr1B1r w - - 0 1 illegal: No proof kernel
B3R2Q/BnNrb1br/1pK2Q2/4Qrn1/1qNp4/2kP1BQ1/4RP1P/2b1r3 w - - 0 1 legal: proof: e4 h5 b4 f5 exf5 h4 b5 Rh5 b6 Rh7 c4 Rh8 c5 h3 c6 axb6 gxh3 b5 h4 b6 h5 Bb7 cxb7 b4 Ke2 Kf7 Kf3 Kf6 Ke4 g5 Kd5 c5 a4 e5 h6 b3 a5 b2 d3 e4 h7 c4 a6 e3 a7 e2 Na3 e1B Be2 b1R Qa4 c3 Qb3 c2 Bf4 c1B Bc7 g4 Bd6 g3 Qa4 g2 Nh3 g1R Qg4 Nh6 Ng5 Bg7 Ne6 Qe7 Bf3 Bb4 Nc7 Na6 b8Q Nf7 Qg3 Ng5 Ra2 Nc5 Nc4 Re1 Re2 Nb7 Qe8 Rb8 a8B Rd8 Bf4 d6 Kc6 d5 Rg1 Bba3 Rf1 Qb4 Qe5+ Kf7 f6 Rd7 Rh1 Kg6 f7 Rb3 Qe3 Kf6 Qc5 Rb1 Re8 Re5 Re1 Rf5 Qb5 Bcb2 R1e2 Re1 Qc5 Bc1 Bd6 Rg8 h8Q Rf8 Qhh4 Rh8 Qe3 Rh7 f8Q+ Rf7 Qh8 Rd7 Qc5 Qb1 Qhd4+ Re5 Ne6 Bb4 Qdg4 Rf5 Bb8 Qb3 Qa5 Be7 Ba7 Qb4 Nc7 Bf4 Ne3 Ke5 Nc4+ Kd4 Qc5+ Kc3 Qb5 d4 Qe5 Rf7 Qge6 Rf5 Q6f6 Bc1
Q2n3B/Rq5R/Rpr3PK/pP2BB2/1N4n1/3rN3/P3rkbb/r1QR1b2 w - - 0 1 legal: proof: e4 c5 d4 d5 h4 f5 exf5 g5 hxg5 cxd4 c4 Qb6 cxd5 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kh5 Ke4 g4 e5 f4 a5 b4 d3 f6 b6 g6 d2 g5 Ke3 d6 h6 d7 e4 f7 Bd6 f8B Qe8 d8R Qe5 b5 Qc3 g7 Qc6 g6 Be5 f5 Na6 f6 Nc5 f7 Kf2 Na3 e3 Bb2 e2 Qc1 e1R Ne2 d1R Rd7 Bh2 Nc3 Rd3 Bd6 Re2 Ra7 Nb7 Nc4 Bh3 Be5 Rc8 Ne3 Nd8 Ncd5 Qb7 Nb4 Rc6 Bg2 Rh7 Be4 Bf1 Bf5 Rh8 f8Q Nf6+ Kh4 h5 Kg5 h4 g8R h3 Ra6 Rh6 Rg7 Rh4 Re7 Rg4+ Kh6 Rg1 Rh7 Qc8 Rha7 Qb7 Bbd4 Bg3 Bf4 h2 Qc4 Bh3 Kg5 Nd5 Bb8 Nf7+ Kh5 Rb1 Bf6 Bf1 Bh8 Bf4 Qc8 Nd8 Bbe5 Bg3 Kg5 Nf6 Qa8 Rc1 Rg1 h1B Qc5 Be4 Rh1 Rce1 Rh7 Bh2 Kh6 Beg2 Rc1 Rc2 Qc3 Ree2 Re1 Rc1 Rd1 Ra1 Qc1 Ng4+
Q3NQnb/1r3R1n/Pk4B1/5Rr1/1p1n4/1q1B1P2/2NpbP2/BKQQr1n1 w - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 dxc5 f5 b3 f4 b4 f3 exf3 axb4 Kd2 d5 a4 Kd7 h4 Kc7 c4 b5 Kc2 e5 h6 g5 a5 e4 a6 e3 c6 d4 h5 g4 h7 e2 h6 e1R c5 g3 Bd3 g2 Bb2 Re7 Ra5 Bg7 Ne2 g1N Nd2 b3+ Kb1 b4 Ba1 b2 Ne4 Ra7 Nd6 Bd7 Rh3 Rb7 Ne8+ Kc8 c7 Nc6 Bg6 d3 Nd4 d2 Nc2 Nd4 Rh4 Re4 Rf4 Bb5 Rf7 Be2 Rb5 Qe7 Ra5 Kd7 c8B+ Kc6 Bcf5 Qe6 Rb5 Rg4 Bd3 Qb3 Ra5 Rg5 Rb5 Ne7 Ra5 Rf8 h8Q Ng8 h7 Be5 Qg7 Bf6 h8Q Be5 Nf6 Re8 Qf8 Ree7 Qa8 Kc7 c6 Kb6 Qh6 Re6 Ne8 Bh8 c7 Re4 c8Q Bf1 Qf8 Re1 Na3 Be2 Re5 Qa4 Ka2 b1N Qcc1 Nc3+ Kb2 Nd5 Kb1 Ndf6 Rf5 Nh7 Nc2 Qb3+
2Q5/R3Br2/PBn1pRRP/3n3K/BrN1bp2/n1QB4/2r3PN/bq1k1r2 w - - 0 1 illegal: No proof kernel
rk1n4/4KpP1/2pNP2Q/rn1b1NP1/N1Q1rB2/r3R3/1b1nN1B1/5qRQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 h5 Ke5 f3 b4 f2 d4 c6 g4 Kc7 e4 h4 d6+ Kb7 g6 h3 d5 a4 b6 h2 g7 a3 d7 a2 b5 Na6 g5 Nb4 d6 Be7 Nc3 Qc7 d8N+ Kb8 b7 Nf6 Ne6 Rg8 Nd4 Nc2 Na4 Nb4 Bg2 f1N Bf4 Bg4 Nge2 Bh5 Nf5 Bf3 Rg1 h1R Qd4 Qa5 d7 Nfd5 d8N Na6 Qc4 Rh4 Re1 Bf6+ Kd6 a1R e5 Ndc7 e6 Bb2 Ke7 Ra3 Neg3 Bd5 Re3 Rf8 Ne2 Ka7 Qc1 Nc5 b6+ Ka6 b8Q Nd2 b7 Qb5 Qc8 Ka7 Qc4 Rg4 Qd7 Kb8 Qd6 Ra5 Qe5 Qb3 Qf6 Qd1 Qg6 Qf1 Qh6 Ka7 Qh1 Nb5 b8Q+ Ka6 Rb3 Nb7 Re3 Rg8 Qe5 Ka7 Qf6 Rh8 Qfh6 Rh4 Bd6 Re4 Be5 N7d6 Nb7 Ra8 Bf4 Kb8 Nbc5 Re5 Ne4 Nb7 Ned6 Re4 Bh2 Nd8 Be5 Nb7 Bf4 Nd8
R2b1N2/1R2Pbr1/1B1bn3/4p1P1/R1nb1NQ1/q3pB2/R1n1P1Bk/KQ5r w - - 0 1 illegal: No possible last move
2B1NK1N/k3p1Qn/1n3Pb1/3rQ1rr/1N1qP3/1Q2p1Rr/1B2bP1N/b2R4 w - - 0 1 illegal: No possible last move
2QNR2q/2BP3p/p1P4P/1Kb4r/r2b4/3rn1nQ/kN1BbQ2/2Q2RNr w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Bc8 fxg5 c6 b4 Be6 b6 Bh6 b5 Bd7 b7 Bf8 b6 Bc8 Bb5 cxb5 Ke2 Kd7 Kd3 Kd6 h4 Kc5 c4 Kb4 g4 f5 h5 e5 h6 f4 d6 f3 d7 f2 c5 f1R c6 Rf5 g6 Ne7 g7 Nd5 g8Q Na6 b8Q Rh5 b7 Bc5 g5 Ne3 Qa2 Rf8 g6 Rf4 g7 Qh8 d8N Bg4 g8Q Rc4 Na3 Rf4 Qf3 e4+ Ke2 Bd4 Nc4 Nc5 Qc8 Rb8 d3 Kc3 Qg5 b4 Rh4 b3 Nb2 Ra8 b8B Kb4 Nd1 b2 Bc7 b1R Nb2 Rb8 Rh2 Kc3 Qa3+ Rb3 Bd2+ Kc2 Rf2 Rc1 Ra2 Kb1 Rf1 Rc3 Qb3 Rd1 Qbe6 Rdc1 Ra4 Rb3 Rb4 Ka2 Qef6 Ra3 Rb8 Ra4 Ra8 Rf5 Qf4 Rd5 Qh4 Rd1 Qf2 Rh1 Rb8 Rdh5 Qg5 Ng2 Qf4 e3 Qg5 Ne4 Ra8 Be5 d4 Ng3+ Kd3 e2 d5 e1B d6 Ne3 d7 Bf6 Qc5 Bd4 Qc1 Bc5 Qh2 Bf2 Qh3 Ng2 Rb8 Bfd4 Qf2 Bf3 Rb4 Bg4 Kc4 Ne3+ Kb5 Bf3 Be1 Rd3 Bd2 Be2 Rc4 Bf6 Re4 Bfd4 Re8 a6+
2B1r1q1/3p4/RP1rP2N/r1P4N/b6R/QBN2B2/pBrkbQ2/1n2bnK1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 e3 f5 e6 h5 b6 a5 b7 h4 g6 a4 e7 h3 e8B a3 g7 f4 g5 h2 b5 a2 g6 f3 Qa4 d3 Ne2 d2 Nbc3+ Kd3 e4 d1R e5 Nc6 b8Q Nb4 Qa3 Nh6 g8N Nc2 g7 Ra5 Qb6 Bb7 Bb2 Bb4 Rc1 Kd2 Nf4 Nf5 Nh5 Bc6 Nh6 Ng3 g8B Qb8 Bd3 Nf1 Bef7 Qe8 Bd5 Qe6 Bf7 Re8 Qd4 Qg4 c5 Qe6 b6 Ba4 Bb3 Qg4 Bfd5 Qg8 Rb1 Rc1 e6 Rd1 Qf6 Rc1 Ba6 Rd1 Rg1 h1R Rg4 Rh2+ Kg1 Re2 Bc8 f2+ Kg2 Nd4 Bf3 Nb5 Nd5 Nc3 Rc1 Qf7 Rh4 Nb1 Nc3 Qg8+ Kh1 Kd3 Qf4 Rc2 Qf8 Rdd2 Re1 Rd1 Re3+ Kd2 Qf7 Ng3+ Kh2 f1B Qf8 Be2 Qf4 Ke1 Kg1 Nf1+ Qg3+ Kd2 Ree4 Qf8 Qf2 Qg8+ Qg2 Ke1 Bd5 Bb5 Na4 Ra8 Bb3 Rd6 Rd4 Bd2 Nc3 Ra6 Ra4 Ra7 Ra5 Ba4 Nd5 Kd1 Qg3 Be1 Nc3+ Kd2 Qg2 Rc7 Ra8 Ra7 Qg3 Qh8 Qf2 Ra5 Ra6 Qg8+
2QR1Qqk/1NPr3r/3pP2r/bbB2B1p/K3Rn2/1B2nR1n/2r3P1/3NB3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 c4 f5 Kc2 Kf7 Kb3 Kg7 e4 h5 b6 f4 c5 d3 b7 f3 g6 f2 e6 d6 e5 d2 c6 Qc7 e7 Nf6 e8R Qd7 c7 Kg8 g7 Qh3+ Qf3 d1N Na3 Ne3 Ka4 Nd1 b4 Ne3 b5 Qe6 b6 Na6 b8B Nb4 b7 Nfd5 Nc4 Nd3 Ne2 N3f4 Bd2 Rh6 Re1 Nh3 Ba7 Ndf4 b8Q Ba6 Qc8 Qg4 Bc5 Bb5+ Ka3 a4 Rd8 Kh7 g8B+ Kh8 Nc3 Bg7 Bd3 f1R Nd1 Qg5 Kb4 a3 Bf5 a2 Na5 a1R Nb7 R1a2 Qf2 Bf6 Bb3+ Qg8 e6 Rc2 Re2 Rb8 Be1 Bc3+ Ka3 Ba5 Rg1 Ng4 Re4 Ne3 Qf3 Rff2 Rf1 Ra8 Qg3 Rf3 Qf2 Rg3 Qf3 Rg7 Qf2 Rgh7 Qf3 Ne2 Qf4 Rd7 Rf3 Rhh7 Qh6 Nef4 Qf8 Rh6 Qe8 Qf8 Qb8 Kg8 Rc8 Rdh7 Qf7+ Kh8 Qd7 Bd3 Ka4 Qg8 Qf7 Ba6 Qf8 Bd3 Re8 Be2 Qd8 Rb8 Qd7 Rd8 Qc8 Rdd7 Rd8 Bb5+
7N/2Ppr2Q/2q5/bpn2NnP/kB1KR1b1/b2BPrR1/r3B2B/1Q2rR2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 b5 Ke3 f5 h4 g5 a4 f4+ Kd4 g4 c4 b3 e3 b2 h6 g3 e6 g2 h5 f3 a5 f2 a6 Qc7 c6 Ra7 e7 Qg3 h7 Ra8 c7 Bb7 c8Q+ Kf7 e8R Qh2 a7 Qh4+ Re4 Qg4 c5 Qf3 c6 Ba3 c7 Nf6 Rh3 Re8 h8B Nh7 Be5 Ke7 Nc3 b1R Rg3 Ng5 Nh3 g1B Ne2 Na6 Nhf4 Nc5 Ng6+ Ke6 Nh8 Re7 Qc2 Bc6 Bb2 Re1 Qb1 Bh2 Bc1 Bb4 Qb8 Ba5 Ba3 Bd5 Qc8 Bb3 Qf8 Bd1 Qg7 Qg2 Qh7 Qf3 Bg2 f1R Bb4 Qf6 Bh1 Rf3 Bg2 Qg6 Bf1 Qh6 Bg7+ Kd6 Be5+ Kc6 Bf4 Kb6 Bd6 Raf8 a8B Qg6 Bd5 Ra8 Bc4 Ra6 Be5 Qc6 Bd3 Ra7 Rg1 Ra8 Ng3 Ra7 Nf5 Bf4 Bg7 Bd6 Rg3 Nb7 Qa2 Re2 Qc4 Rf4 Bc3 Bab4 Be5 Raa2 Qb3 Ka5 Rg2 Rff2 Qb2 Ka4 Bh2 Ba5 Rg3 Ba3 Bb4 Nc5 Rc1 Rf4 Qb1 Rff2 Rc2 Rf4 Rb2 Re1 Rf2 Bg4 Bfe2 Rf3 Rf1 Rd2 Qg8 Rc2 Qh7 Ra2
2q1r1B1/1Np1rQ1R/Qb3Q2/b2Rp3/1P2P3/1Nb1k2P/2BnNNn1/nK3b2 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 d4 Kd7 Kd2 Kd6 Kc1 f5 e4 e5 h3 a5 b6 a4 b7 a3 Qh5 g4 Bd3 f4 Ne2 f3 Rd1 a2 Bc2 f2 Nd2 Ne7 g8B f1N g7 g3 Qf7 Nd7 b8Q g2 Qb7 g1B Kb2 Rb8 Qa6+ Rb6 Rac1 a1B+ Ka2 Ng6 Kb1 Ng3 Rf1 Nh4 Rcd1 Nc5 Rf4 Ng2 Rh4 Nf1 Rh5 Be7 Rh7 Kd7 d6 Kc6 d7 Bc3 d5+ Kd6 Qb5 Ba6 Qc4 Qc8 d8N Bgd4 Qa4 Bd3 Qa7 Ba5 Qa6 Bdc3 Nb7+ Kd7 d6 Kc6 d7 Bb5 Nf3 Nd2+ Ka2 Bg5 d8Q Be3 b4 Ncb3 Qh4 Na1 Qhe7 Nc4 Rd5 Nd2 Nfg1 Bed4 Nc1 Bf1 Nb3 Be3 Ne2 Bc5 Qa8 Kb5 Qef6 Kc4 Qa7 Re6 Qb6 Nf3 Kb1 B5d4 Bd1 Kd3 Qa6+ Ke3 Bc2 Bdb6 Qd7 Nfh4 Bf7 Ree8 g8N Nf3 Nh6 Re7 Qde6 Rf8 Bg8 Rfe8 Qef7 Kf2 Ng4+ Ke1 Nbd4 Kd2 Nf2 Ke3 Nb3 Nd2+
NbQ5/1P2Q1nR/2rQ1pr1/p1N4r/2Kr2BP/k3q1Nb/1RP2N2/B2b1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 Kd3 d5 b4 a5 e4 g5 e6 Kd6 h6 g4 e5+ Ke7 b6 f6 b5 g3 b7 g2 h7 Qe8 b6 Na6 b8N Nc7 b7 Ra7 Nc3 Nh6 Nge2 g1R Nd7 Rg6 Nc5 Ra6 Bh3 Nf5 Rb1 Ng7 Ng3 Rc6 Nc3e4 Bd7 Bg4 Bc8 Kd2 d3 Kc3 d4+ Kc4 d2 Rb2 d3 Nf2 Nd5 h3 Rg8 h8Q Ne3+ Kc3 Nf1 Kc4 Bd7 Qh7 Rh8 Qg8 Kd8 e7+ Kc7 e6 Kd6 Rh2 Rh5 Qf7 Qd8 e8Q Qe7 Qc8 Qe8 e7 Bf5 Qe1 d1B Qb4 d2 Qa3 Bf3 Rh1 d1R Be3 Rd5 Bd4 Bd1 Qd3 Qd7 Bc3 Qe6 Rh2 Qe3 Rh1 Rc7 e8N+ Kc6 Qd2 Bd6 Qe7 Rd3 Ra2 Kb6 Ba1 Rc6 Rh2 Bb8 Nc7 Rd8 Qdd6 Rd7 Kd5 Rd8 Na8+ Kb5 Rh1 Kb4 Rb2+ Ka3 Kc4 Nh2 Re1 Nf1 h4 Be4 Re2 Bg2 Rd2 Bh3 Rd5 Rhh6 Rh5 Rhh8 Rh7 Rd7 Qd4 Rd5 Qd2 Rhd8 Qd4 Rh5 Qf4 Rd2 Qfd6 Rd4+
nn2Qn1b/1P5R/4p3/1Pk3rN/3Rp1bB/3nbBqB/1QP4N/r2Q1BK1 w - - 0 1 illegal: No possible last move
qQNRR1rn/BP2R2K/2Pn3b/1b1r1B2/Pp6/4p2R/bn1Q4/k2NQ1b1 w - - 0 1 illegal: No proof kernel
1Q1Rr3/Rpnnn2N/6n1/3q2K1/Pk1BpQ1Q/bP1b1r2/2RP2N1/2RBr3 w - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Rh7 Qc2 Rh8 Qb2 axb2 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 h4 c6 f6 e5+ Kg5 e4 f4 g6 h6 Qc7 f5 Qa5 d6 Qa3 h7 Ra4 f7 Rc4 d7 Rc3 d8R Ne7 h5 Qa5 f6 Bh3 h6 Nd7 Na3 b1N Bb2 Rf3 Nc2 Na3 Ne1 Nb5 Bd4+ Kb4 Ng2 c5 Be2 c4 Bd1 c3 a4 c2 Ra2 c1N Rc2 Bg4 Nh3 Nd3 Re1 Rg8 h8Q N3e5 h7 Nc7 Ra8 Be6 Ra7 Bc4 Rf1 Bd3 Rh1 Bg7 f8R Qd5 Rd8 Re8 f7 Bf8 Qf6 Nc8 h8Q Ne7 Kh4 g5+ Kh5 g4 Kg5 g3 Qf4 Nf5 Qhh4 Ng6 Rg1 Bc5 f8Q Nfe7+ Kh6 Na8 Ng5 Nc7 Nh7 Bd6 Qh8 Bc5 Qhe5 Bd6 Kg5 Bc5 Ne3 g2 Rh1 g1R+ Ng2 Re1 Rf1 Qc4 Qd6 Ncd5 Qb8 Nc7 Rh1 Qd5+ Kg4 Ree3 Be2 Ka3 Rhc1 Bb4 Bd1 Re1 Be2 Bc3 Bd1 Bb2 Nf8 Kb4 Nh7 Qe6+ Kh5 Ba3 Kg5 Qd5+
3q1QNn/bpN2P1p/B2Kn1bP/1Qrb4/2PNb3/3n1BBk/2r4N/2R4R w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 b4 axb4 f4 Qc7 fxg5 Qd8 Ke2 Kf7 Kd3 d5 Kd4 b3 Ke5 d4 a4 d3 h4 b2 g4 d2 c6 e6 h5 Bh6 g6+ Ke7 g5 Qd3 c7 Qd7 g7 Qd8 a5 Na6 g6 Nc5 a6 Be3 a7 Nh6 Na3 b1B Qe2 d1B Qb5 Bf3 g8B Bd5 g7 Rb8 c3 Bbe4 a8N Bf2 Nc2 Nf7+ Kf4 Kf6 h6 Bd7 c8Q Be8 Nc7 Ra8 Bd3 Ra2 Nd4 Rc2 Ngf3 Bg1 Nh2 e5+ Kg3 Ne6 Bf4 Be3 Rac1 Bg1 Kg4 Be3 Bg3 Bf2 Kh3 Kg5 f6 Be3 Nc6 Ba7 Nd4 Bf3 Be2 e4 Bf1 e3 Bg2 Be4 Bf3 Kg6 Kg4 e2 Qb8 e1N Qa8 Bc5 Qa3 Ba7 Qf8 Nc5 Kf4 Ned3+ Kg4 Nd6 Be6 Nf7 c4 Rg8 Bd7 Nh8 Bc6 Ne6 f7 Bd7 Qb6 Kf6 Bb5 Bg6 Ba6 B7c6 Qbb4 Bde4 Qb5 Bcd5 Qd6 Qd7 Qdb4 Rc8 Qf8 Qd8 Kh3 Kg5 g8N Rc3 Kg2 Ne1+ Kf2 Nd3+ Ke3 Rc2 Na8 Rc5 Nc7 Ng7 Ne2 Ne1 Kd4 Ne6+ Ke5 Rb2 Bg2 Rc2 Nd4 Kh5 Bf3+ Kg5 Bf4+ Kh4 Bg3+ Kh3 Bf2 Qe8 Bg3 Nd3+ Kd6 Qd8+
2r2r2/PP1qp1Q1/NkB1P2p/N2R1K1n/Rb3B2/1Q6/3r1Nrn/1Nn2Qb1 w - - 0 1 illegal: No proof kernel
NNnR2BN/3Kqbb1/2r4k/r2P4/q2p1RPn/RpN4P/1n3Q1n/2B1Q3 w - - 0 1 illegal: No proof kernel
3r4/k2NB3/4B2n/1P1Q1npr/K2R1Q1r/br3BpP/1NQqP3/qQ2R2b w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 b6 Kd7 d4 f5 Kd2 g5 Kc2 c5 Kb3 a5 h3 f4 e6+ Kd6 b7 Kc7 e7 Kb6 e8B f3 d6 g3 d7 f2 d5 Qc7 d8Q Ne7 d6 Nbc6 b8Q+ Ka6 d7 Rh5 Nf3 Ne5 Bg2 f1R Nbd2 Qd6 Qdc7 Nf5 d8Q Nf7 Nc4 N7h6 Bf7 Bb7 Nfe5 Rf4 Be6 Rfh4 Ra4 Qd2 Re1 Bf3 Rb4 a4+ Ka3 Be4 Qd5 Bd6 Nd7 Be7 Nce5 c4 Nd3 c3 Qf4 c2 Qbc7 Rd8 b3 Nd6 Rd4 Ndf5+ b4 Bc5 Bb2 c1R Q1b3 Bf8 Qcc2 Ka7 Qb1 Rcc8 Q3c2 Rb8 Bc3 Be7 Nb2 Bc5 Rd3 Bf3 Bf6 Rb6 Be7 Rbb8 Bf1 Bh1 Bg2 Rb6 Bf3 Rb5 Ka2 a3 Kb3 a2 Ka4 Rb7 Rd4 a1Q+ Qda2 Rc7 b5 Ba3 Qab3 Rc3 Qd5 Rb3
1KBB1bQ1/1q2Q1NQ/1q2r1P1/Q4P2/p1kbp1P1/1n5R/2b1Nb2/n1r3BR w - - 0 1 illegal: No possible last move, all moves rejected
B1qB4/nNNB1Q1r/b1R1r1p1/QPp3K1/3B1R1r/6P1/2RPr1kb/5qn1 w - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf8 h6 Qd6 Nf3 Qe5 Ng1 Qg7 hxg7 Be6 Qa4 Bg4 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 b4 Ke5 e4 f5 d6 c5 d7 a5 d8R h5 b6 h4 b7 h3 b5 h2 Nc3 a4 Nge2 a3 Nd4 a2 Qa4 Nf6 g8Q Nc6 b8B+ Bd6 Qa5 Nd5 Nb3 Ba6 Bb2 Na7 Qf7 Rh7 Rc1 a1R Rc2 Re1 Rc8 Re2 Bc7 Rh4 Rg1 h1R Bd8 Rb8 Rc6 Rb6 Ba1 Rh7 Bb2 R1h4 Ba1 Rb7 Rh1 Re7 Rh3 Re6 Rg3 Ne3 Rg4 Nd1 Nd5+ Nc3 Nc7 Re3+ Kf2 f3 Kg3 Re2 Rf4 f2 Bb2 Re1 Bc4 f1Q Bd5 Qg1 Qa1 Qf1 Na5 Re2 Nb7 Qb1 Qa5 Qa2 Rf2 f4+ Kf3 Kd4 e5 Qa3 Ne8 Bb8 Nc7 Qb3 Be4 Qd5 Ba1 Qd7 Bd5 Qc8 Bb2 R4h6 Kg4 f3 Kg5 Rh4 Rf1 f2 Ba1 Rd6 e6 Kd3 e7 Rde6 e8B Kd4 Na8 Bh2 g3 Kd3 Nc7 Kd4 Rg1 f1Q Bd7 Kd3 Bh1 Kd4 Rg2 Ke4 Bb2 Re1 Ba1 Ne2 Bd4 Ng1 Rf2+ Kd3 Bf3 R1e2 Bg4 Ke4 Rf6 Rg2 Bf5+ Kf3 Be4+ Ke2 Rf4 Ke1 Bf3 Rge2 Bh8 Kf2 Bb2 Qg2 Bd4+ Kf1 Bd5+ Qf3 Be4 Kg2 Rb6 Nc6 Nd6 Nb4 Ba8 Nc6 Nb7 Na7 Rc6 Qf1
3b4/1R2Rq1b/q1N1pRP1/Qn3qP1/2B1K1kq/2R4r/QB1p1P1r/3nB1N1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 b4 a5 g4 h5 c4 h4 g6+ Kf6 c5 h3 b6 a4 b5 h2 c6 a3 b7 a2 b6 Qe8 c7 Nc6 b8R Ra3+ Qb3 Qf7 b7 Na7 Bf4 Nb5 Be5+ Kg5 Be2 Nf6 Nc3 Ne4 Re1 a1Q Na2 Nec3 Nb4 Nd1 Nc6 Bg7 Qc3 Bf6 Qb3 Be6 c8R Qc1 Bf1 Qc5 Rf8 Kh4 g5 Kg4 Rbc8 Rh4 b8Q Rh6 Qa8 Rh5 Kd2 d3 Bb2 d4 Qa5 Rh6 Qa2 Bc4 Kc1 d2+ Kc2 Rah3 Re3 Bb3+ Kd3 R6h4 Ke4 d3 Rb8 Rh5 Rb7 Rh7 Nf3 Bc4 Be2 R7h4 Re1 h1Q Bf1 Qh2 Ng1 Qhd6 Nd4 Qa6 Nc6 Rh2 Rf3 R4h3 Re2 Qe8 Ree3 Bg8 Rf7 e6 Rfe7 Qf7 Be2 Be5 f6 Bc7 Bf1 Bd8 Be2 Qh7 f7 Qh4 f8B Bh7 Bfg7 Qab6 Bgc3 Qa6 Ba3 Nb2 Bcb4 d1Q Be1 d2 Bc4 Qa1 Rb3 Nd1 Bb2 Qc1 Rbd3 Qc3 Rde3 Qf6 Rc3 Qf7 Rf6 Qf5+
8/nBrQr3/2bP2Q1/1pQ1NBp1/q1Rr3P/2K2nkq/NB4P1/r1b2RB1 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 h5 Qxh5 d5 cxd5 Bd7 Qh7 f5 exf5 Bc8 f4 Kd7 a4 Kd6 d4 c5 Kd2 g5 h4 e5 a5 b5 a6 c4 f6 b3 f5 c3+ Kd3 b2 f7 c2 a7 e4+ Kc3 e3 f6 e2 Ra4 e1R Nf3 Ne7 Ne5 Qd7 Qg6 Qh3+ Bd3 Nd7 Rf1 Nc6 Rc4 Bb7 Be3 Rh7 Bf5 Rd8 a8B Be7 f8Q Na7 Qfe8 Bc6 f7+ Bf6 f8B+ Re7 Bb7 Rd1 Bg7 c1R+ Kb3 Rc8 Qf8 Rc7 Nc3 Ra1 Na2 b1Q+ Kc3 Rd2 Bh8 Qd1 Bg7 Qa4 Bh8 Nc5 Qc8 Nd3 Bg1 Qh2 Bg7 Ne1 Bh8 Nf3 Bg7 Rcd7 Bh8 Qh3 Qf8 Kc7 d6+ Kb6 Ng4 Rd3+ Kb2 Be5 Qc8 Bf4 d5+ Be3 Bc3 Rd4 Ne5 Qa3+ Kc2 Bc1 Bb2 Qa6 Kc3 Qa4 Qcg8 Rd8 d7 Rc8 d8Q+ Rcc7 Rb4 Kc5 d6 Qa5 Qd7 Qa4 Nf7 Kd5 Qgd8 Rc8 Qb6 Rc7 Rc4 Re6 Nd8 Ke5 Nf7+ Kf4 Qc5 Kg3 Ne5 Re7
r1RrB3/1R3b1Q/1rrp1K1p/q3nNb1/4P2Q/2B2PPn/N2q2N1/N4k1B w - - 0 1 illegal: No proof kernel
1KQ1r1B1/3NB1Qn/nP4R1/q2Qq1N1/R2r2P1/1b2b1PN/2pp1Qq1/1k3q2 w - - 0 1 illegal: No proof kernel
brNR1R1n/5q2/1P1B4/1P1BqN2/1BP5/1KQ1p1nn/1RpR3Q/n3bkr1 w - - 0 1 illegal: No possible last move, all moves rejected
1RQB4/7k/qPPnN1b1/1R1N2R1/1p3qq1/KpbP2r1/Q1B1n1rN/2N2q2 w - - 0 1 illegal: No possible last move, all moves rejected
Bn1r3Q/bqNR2pR/2b1NQ1B/2p1nP1q/1P1q2B1/P4rk1/2Bq4/5RK1 w - - 0 1 illegal: No proof kernel
3rq1QB/R1rN1Kp1/nN3Q1P/1Q4qP/3b4/p2q1BPb/1BBknR2/1q6 w - - 0 1 illegal: No proof kernel
r1N2Rr1/3b1qpQ/bPQ3P1/K3qPBB/2R2r1p/3rn3/knQ5/N2Q1N2 w - - 0 1 illegal: No proof kernel
b1NrQ3/3NRP2/2pr4/2PQK1N1/4rBNB/Bn2R3/1p1qqbPr/2k4n w - - 0 1 legal: proof: e4 a5 h4 f5 b4 g5 hxg5 d5 exd5 Nd7 bxa5 Nb8 Bd3 Na6 Be4 fxe4 Qf3 Nb8 Qg4 Bg7 Qd1 Bf8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 a4 Kb4 c4 b5 d4 h5 d6 h4 a6 e6 a7 h3 d5 c6 d7 e3 g6 e2 c5 e1R a5 h2 a6 Re3 g7 Nh6 g8N Qe7 d8B Ng4 d6 Rh6 d7 Bg7 Nd2 Kc3 Nf6 b4 Nh3 b3 Ba3 b2 Nf3 Bb7 Re1 h1R Nfg5 Rh2 Qd5 Kc2 Bc7 e5+ Kf5 e4 d8B Bh8 f4 Nf2 Nd7 Nh1 Nf2 Bd4 Ng4 Rd6 Rac1+ Kd2 Rc3 Re2 Rh3 e3 Rh7 Qe8 Re7 Qh5 Ke4 Qe8 f5 Kc2 Nb6 Nd7 f6 Ne5 f7 Nc4 Nd7 Na5 Kf5 Rb8 a8N Nb3 Nab6 Ba8 a7 Kd2 Nc8 Kc2 Ra1 Re1 Rd1 e2 Rd3 Bf2 Ke5 Kc1 Rg3 Rb4 Bb8 Rd1 Re3 e1Q Bbc7 Bb7 a8Q Qd2 Qb8 Re4+ Kf5 Rdh6 Bf4 Ba8 Qbe5 Rd6 Qh8 Qf8 Qg8 Qg7 Qe8 Qgd4 Ba5 Qe2 Be1 Bg1 Bh4 Bf2 Nb8 Rd8 Nd7 Qb4 Kf6 Rdd4 Kf5 Qbd2 Kf6 Re6+ Kf5 Rd6 Ke5 Re4+
1rN3KB/2N1P2q/n1BR2B1/1bn1B2p/k1p1R2q/P2Qrb1P/1Q1r4/3N3r w - - 0 1 legal: proof: f4 a5 c4 e5 b4 axb4 g3 d5 cxd5 f5 Kf2 Bc5+ Ke1 Be3 fxe5 f4 Nh3 f3 Ng1 Bf4 gxf4 Qg5 Kf2 Qf6 Ke1 Qd8 Kf2 Kd7 Kg3 g5 Kg4 h5+ Kf5 c5 Kg6 b5 Kf7 g4 e4 g3 d4 c4 h3 b3 f5 b2 f6 g2 a3 f2 e6+ Kd6 e7 b4 e8B b3 e5+ Kc7 e6 Kb6 d6 Ka5 e7 Qc7 d7 Qc5 d8Q+ Qb6 d5 Qc7 d6 Ra6 d7 Nc6 Qd4 Ra8 Bd3 f1B Bg6 Nb8 Nd2 b1Q Ne2 g1R Qb2 Qe4 Nc3 Be2 Nd1 Rg3 Re1 Qh4 Ne4 Ka4 Nd6 Qc6 Bf4 Na6 Be5 Bf3 Re4 Rb8 Ra2 Bb7 Nc8 Qd6 Kg7 Bc6 f7 Bb5 f8B Nf6 Kf7 Qd2 Bg7 Qh6 Ra1 Rg8 Bh8 Rg2 Rc1 Rd2 Rb1 Nc5 Rc1 Nd5 Rc3 Nb4 Rd3 Nba6 Rd6 Rg7+ Kf8 Rf7+ Kg8 Rf6 Qb6 Re6 d8N Bg2 Qb1 b2 Bc6 Bf3 Qd3 b1R Qb7 Rf6 Ne6 Rc1 Ne3 Rh1 Nc7 Rf7 Nd1 Rf4 Red4 Re4 Qb6 Re3 Re4 Nb7 Qbd4 Nbc5 Qb2 Qh7+
3q4/nb2Pq1r/kN1R4/bR1p4/2pn4/BNrBNr2/PQ1R3P/2rQR2K w - - 0 1 illegal: No proof kernel
n2B1N1k/1KP2bp1/rNqp1bR1/4QN2/P4RNn/5Bb1/q1P1r3/bQ1Q4 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 Kf7 Kd3 b5 Ke4 e5 Kd5 e4 f4 g3 a4 d6 h4 b4 c6 b3 f6 b2 f5 g2 h5 e3 a6 e2 a7 e1B c7 Ba6 h6 Nd7 Kc6 Bh4 h7 Bc4 Kb7 Ba2 Nc3 b1Q+ Nb5 Ne7 Nf3 g1B Be2 Be3 Ne5+ Ke8 Rg1 Qb3 Bf3 Bd2 Ng4 Qg8 Nd4 Bc3 Bg5 Kf7 Rb1 Bg3 Rb4 Ba1 Rg2 Rc8 a8N Qe8 Nb6 Ng6 Rc4 Be7 Bh4 Kf8 f7 Bf6 Bg5 Ke7 f8N Kf7 Qb1 Nh4 Rg1 Bd8 f6 Ra8 Nf5 Ra6 Rf4 Be7 Ne6 Kg6 f7 Bef6 f8Q Qgf7 Qe7 Rg8 Nd5 Nb6 h8Q Na8 Nb6 Qb5 Qd1 Re8 Qhf8 Qg8 Qff7+ Kh7 Nf8+ Kh8 Qe5 Qc5 Qb3 Re7 Qbb1 Bf7 Qed4 Re2 Qd5 Bfb2 Bd8 Bf6 Qe5 Qc4 Nh7 Qe8 Nf8 Qa2 Ngh6 Be1 Rg6 Bg3 Ng4 Qc6+
3Q1b2/1pQn3r/1P2qQ2/1N2NN1N/1r1nk1np/4P1B1/4b1PB/KqR3nR w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 d5 c4 Bd7 cxd5 Bc8 hxg5 a6 b4 Qd7 e3 Nf6 b5 Ng8 b6 Qd8 Bb5+ axb5 d4 Kd7 Kd2 h5 Kc2 f5 Kb2 c5 a4 c4 g6 b4 a5 f4 a6 h4 d6 Kc6 d7 Kd5 e6 f3 a7 b3 e7 f2 e8N f1Q g7 Nf6 g8N Qd3 Ng7 Qh7 Nf5 Qg7 Qf1 Ng4 Nf3 Qe5 Na3 Qde7 d8B Qh7 Nb5 Nd7 Bd2 Ke4 Bc7 Qe6 Rc1 c3+ Ka1 c2 d5 Qhg6 Bh2 Rh7 Be1 b2+ Ka2 b1N Beg3 Nd2 Ne5 Nb3 d6 Nd4+ Ka1 Qb3 Qc4 Qe6 Qc7 Qb4 Nge7 Qe1 Ng7 Qf1 Nh5 Qg1 Rd1 c1N Nf5 Nce2 Rc1 Qf1 Na3 Ng1 Nb5 Rb8 a8Q Qd1 Qa5 Ra8 Qa3 Ra4 Qa2 Rb4 Qb2 Ndf6 d7 Qf1 d8Q Nd7 Qf6 Qd1 Qcd8 Qc2 Qb3 Qd1 Qc4 Qd3 Ka2 Qb1+ Ka3 Nh6 Qf1 Qd6 Ne7 Nc5 Qc4 Bg4 Nf5 Nd7 Qc3 Be2 Qcc7 Qd3+ Ka2 Qe6+ Ka1 Ng4 Nc4 Qc2 Ne5 Qb1+
3N1brQ/Q4p1b/R1p1RP1q/1B2r1q1/1BN3K1/1kP2P2/3rBb1R/1q1R3n w - - 0 2 illegal: No possible last move, all moves rejected
6q1/1P2KB2/1QB1ppq1/QnN1PRB1/2rrq2P/R2b1R2/3n4/Nk2rB1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e6 axb5 Ke7 f5 Kd6 f6 Be7 fxe7 Ke5 Qd2 Kd5 Qd1 Kd6 Kf2 Ke5 Kg3 Ke4 Kh4 d5 Kg5 a5 c4 g6 b4 a4 h4 a3 h6 a2 c5 d3 b6 d4 c6 d2 b7 d3 c7 Na6 b8Q Nf6 h7 Qg8 Qe1 d1N e8B d2 b5 Nf2 b6 d1R Rh3 Nh1 Na3 Rd4 Nc2 Bb7 c8B Nc7 e3 Nb5 Ne2 Kd3 Bcd7 Be4 Rf3 Raa4 b7 Rac4 Qa7 Bf5 Qb6 Ne4+ Kh6 g5 Qea5 g4 Bc6 f6 Bf7 g3 Bd2 Qd8 Kg7 g2 Bc1 Re8 h8R Nd2 Rh5 g1Q+ Rg5 Rf8 e4+ Qe3 e5 Rg8+ Kh6 Qc8 Kh5 Bh7 Rgf5 Rg2 Ng3+ Re2 Ne4 Qg8 Rb1 a1Q Rb3+ Qc3 Ra3 Qb3 Na1 Qc3 Nb3 Kc2 Na1+ Kb1 Nc5 Qe4 Kh6 Qcc2 Kh5 Nb3 Bg5 Re1 Kh6 Qe8 Kg7 Nd2 Bg6 Qb8 Kf7 Qg8+ Ke7 Qcd3 Bf7 Bg6 R3f4 Qg3 Rff3 Bh7 Be3 Q3g6 Bg5 Q6g7 Na6 Qg4 R5f4 Bd3 Nc5 Qg6 Rf5 Qe4
QK3R2/P2p2B1/br2Qn2/1Q1P2RB/1n1Np2Q/1N1rPq1n/2q2q2/1N2k1r1 w - - 0 2 legal: proof: c4 b5 h4 a5 f4 g5 fxg5 a4 g4 e6 g6 b4 g5 a3 h5 axb2 h6 Bg7 Na3 b1Q hxg7 Qf5 Nb1 Qb5 cxb5 Ra6 Kf2 Ra5 Ke1 Ra8 Kf2 Ke7 Kf3 Kd6 Kf4 Kd5 d4 Kc4 Ke5 h5 a4 f5 a5 c5 Kd6 e5 a6 h4 a7 b3 d5 e4 b6 b2 b7 f4 Nf3 h3 Nd4 h2 Nb3 f3 Qe1 f2 Rg1 Qf8+ Kc7 Nc6 b8N Nf6 g8Q h1N g7 Ba6 g6 Nb4 Rg5 Rh3 Nc6 Rd3 e3 Rb8 Qe6 Rb6 Be2 f1Q g8Q Nf2 g7 Nh3 Bh5 Qf3 Qh4 Qf7 Qa8 Qf8 N1d2+ Kc3 g8Q b1Q Ncd4 c4 Qac6 Qb2 Qb5 Qc2 Ba3 Qf7 Rf1 Qf2 Qa8 Qf8 Be8 Qf7 Bc1 Qh5 Bg6 Qhf3 Bh5 Nh7 Qf7 Qf6 N2f3 Qfe2 Nbd2 Qa2 Ne6 Kc2 Qe7 c3 Nb1 Qa4 Rf2 Kd1 Nfd2 c2 Bb2 c1R+ Bc3 Qa2 Nb3 Qc2 Rf3 Qf5 Qee8 Qg4 Rf8 Qf2 Qe7 Qgf3 Qee8 Nc6 Bg7 Nf6 Qf7 Ke2 Qg8 Rh1 Ned4+ Ke1 Qe6 Rg1 Qhg4 Bb7 Qh4 Nb4+ Kb8 Ba6+
1Qq1N1BQ/bbqr3Q/1B1PN1rp/3KnQ2/R2P1p1P/q7/B1b3Rr/7k w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 Nc6 cxd5 Nce7 Ra4 exf4 Ra1 f3 Ra6 f4 Ra1 Nf5 gxf5 Qe7 Ra5 Qg5 Ra1 Qd8 Kf2 Kf7 h4 Kf6 b4 Ke5 e4 g5 f6 a5 b6 c5 b5 c4 b7 h6 b8Q+ Kd4 b6 g4 f7 c3 b7 c2 e5 Ke4 e6 a4 e7 a3 e8B a2 d6 Nf6 Na3 Nd7 Bc4 Bg7 f8Q Qc7 Bg8 Ne5 Nb5 Rh7 Nh3 Bf6 Rg1 Rd7 Ba3 c1Q Bef7 Ra6 Bc5 g3+ Kf1 f2 Ke2 g2 d4 Bd8 Bb6 f1B+ Kf2 Bd3 Qc2 Ra5 Qa7 Qa3 b8Q Bb7 Qaa8 Qc8 Nc7 Qc1 Qb1 Bc2 Ne8 Rb5 Qg7 Rb2 Qh8 Bc7 Qba7 Bb8 Ng5+ Kf5 Ne6 Ke4 Qa5 Ba7 Qb8 Qc7 Rh1 g1R Rh2 Rg6 Rg2 Qh1 Ke2 Qh3 Kd2 Kf3 Qc5 Bd1+ Kc3 Rd2 Qf5 Bc2 Qh7 Qg4 Qf6 Rf2 Qfh8 Qh3 Rg4 Rh2 Rg2 Nc6 Qf5 Ne5+ Kb4 Qg4 Re1 a1Q Ree2 Bce4 Ra2 Bc2 Ra4 Qa3+ Kb5 Nc6 Kc4 Qh3 Rg5 Qg4 Kd5 Kg2 Qa8 Kh1 Qb8 Qgh3 Rg2 Rf6 Bh5 Rg6 Be2 Qhc3 Bc4 Qc8 Ba2 Qa5+ Bc5 Qac7 Bb6 Ne5+
2q1q1B1/1rBn1p2/4R1BB/KbQr1PRP/1n6/q2Q2rN/1knpP3/N4Q2 w - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Nf6 g4 hxg4 a4 Bc5 a5 Bb6 axb6 Ng8 Kd2 Ke7 Kc3 Ke6 f4 g5 h4 a5 b7 c5 b6 d5 h5 c4 b5 g3 Ra3 g4 Rh3 a4 Kb4 d4 Qd3 Kd5 e6 c3 e7 c2 e8B g2 Rg3 Ra5 Nd2 Nd7 b8B Ne7 Nb3 Ba6 b7 Qc8 b6 Bb5 Nh3 g1Q Bc7 Qe3 b8Q Rg8 Ra1 a3 b7 a2 Qa7 Rh8 Bd2 c1Q b8Q Qe6 Rg1 g3 Bg2+ Qe4 Rb1 a1N Bf3 g2 Qc5+ Ke6 Be3 Rg8 Qa8 Rg3 Qaa7 Qe5 Be4 Qb2 Bg6 Qa2 Qc1 Kd5 Qb6 Ra7 Qcd1 Rb7 Qf1 Qb2 Bh7 Nc2+ Ka5 Rg5 Na1 Qe6 Qdd1 Kc4 Bg8 Kc3 Rc1 Qbb3 Qc5+ Kb2 Qd3 Nd5 Rd1 Ndb4 Rc1 Nb6 Bc6 Nd7 Be4 Rd5 Bg6 Qee8 f5 Qc3 Bh6 Qb3 Rh1 g1R Rd1 Rg3 Rg1 Re3 Rg5 Rg3 Qe3 d3 Rc1 d2 Qd3 Ne3 Rc4 Qc3 Re4 Nec2 Re6 Qa3+
kq1NB1b1/1ppq3P/n4QB1/B1P2bR1/BQ3Pr1/2N1r3/2q2RQr/1Kb5 w - - 0 1 illegal: No possible last move, all moves rejected
NB2R1Br/1k2rb2/p1q1p3/3n1qR1/PP2N3/qN2NPr1/3KB2b/1Q3bQ1 w - - 0 1 legal: proof: g4 b5 e4 g5 c4 d5 exd5 bxc4 h3 f5 gxf5 Nd7 h4 g4 Qe2 Ne5 Qf3 Nf7 Qd1 Ng5 hxg5 Bb7 Rh5 Ba6 Rh1 Bc8 d4 Kd7 a4 h5 b4 c5 f6 Kc7 d6+ Kb7 d5 g3 g6 h4 f7 h3 g7 h2 f3 e6 d7 g2 d6 a6 Be2 c3 Nh3 c2 Kd2 g1R Na3 c4 Nf2 Rg6 Qg1 Qb6 d8Q Qa5 d7 Bc5 f8N Nf6 g8B Rg3 Ne4 Nd5 Qg5 Ba7 Qf5 Bb8 Qg6 Ra7 d8N+ Ka8 Nb7 Bd7 Nbc5 Be8 Bb2 Re7 Be5 Bf7 Nb3 Kb7 Nd7 Bd6 Nb6 c3+ Kd3 c1Q Nac4 c2 Na8 Bc7 Ne3 Qa3 Kd2 Bd6 Qb1 Bb8 Rg1 h1B Bf4 Bg2 Qg7 Ba7 Bb8 Bf1 Rh1 Bd4 Rh5 Be5 Rg5 Bf4 Qg6 Bg2 Qg1 Bf1 Rd1 c1Q+ Kd3 Qb1+ Kd2 Qb5 Rc1 Bd6 Rc8 Qc6 Re8 Bf4 Nf2 Qf5 Ne4 Bh3 Qb1 Bf1 Qg7 Rg4 Qd4 Bh2 Qc5 Rg3 Qcc1 Bg2 Qg1 Bf1
1n2B3/1P3RKR/2rBp3/QN2Brqb/p3rQPR/1qn2q2/Pk2n3/2N4B w - - 0 1 legal: proof: e4 g5 c4 b5 g4 bxc4 h4 d5 exd5 Bg7 hxg5 Be5 Rh4 Kf8 Rh1 Bg3 fxg3 Ke8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 f5 d6 a5 d7 c5 g6 h5 d5 c3 d6 a4 g5 c4 g4 e6 g7 c2 g6 f4 Ne2 h4 Qd2+ c3 Bg2 f3 Qf4+ Kc5 Na3 f2 Nb5 Nf6 g8B f1Q g7 h3 Bf7 h2 g8R Ra6 Be8 Qd1 Rg7 Rc6 Rh7 Ne4 b4+ Kc4 Bb2 Rf8 Nc1 Qf3 Rh4 Qb6 d8B Bd7 Be7 Qbe3 Rf1 h1R Rf2 Rg1 Bh1 Re1 Rfh2 Rf6 Rh7 Rf8 R2h4 Qb6 Nc7 Qb7 b5 Kb4 b6 Rf5+ Kd4 Re2 Nb5 Re3 Bh5 Be8 d7+ Rfc5 d8Q Bf7 Nb3 c1Q Bd6 c2 Rb1 Nc3 Bg6 Qe7 b7 Qg5 Ba1 Qg1 Rf1 c1N Bh5 Qgg3 Qc7 Bg8 Be8 Bf7 Bb2 Bh5 Qd8 Qg6 Qdg5 Re1 Qd5 N1e2+ Ke5+ Ne4 Bd4 N4c3 Nc1 Qg8 Kf6 Qh3 Nc7 Ka3 Nb5+ Kb2 B4e5 Qhg3 Bg6 Qd8+ Kg7 Qg5 Rf2 Rc4 Qc5 Re4 Qb6 Rd1 Qa5 Rd5 Rf1 Qg1 Rf2 Qd1 Rf1 Qb3 Rf2 Qd8 Be8 Qg5+ Kh8 Qf5 Qg5 Rd3 Bg3 Qg2 Kg7 Rd5 Bh2 Rdc5 Rf4 Qfd5 Rf7 Qf3 Bhg3 Qd2 Bgf4 Rf5 Bfe5 Qd4 Qe3 Qb6 Qg5 Qd8 Qf4 Qg5+
N3bB1q/q3Pr1B/2p1QR1R/KNq2Nkr/Q5n1/2P1pnn1/5PQ1/2rQ4 w - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 exf5 e4 h3 Bg7 h4 Be5 dxe5 gxh4 Kd2 Kf7 Kc3 d5 Kb4 h5 g4 h3 b6 d4 g5 h4 g6+ Kg7 b7 a6 f6+ Kf8 f7 Kg7 f8N h2 e6 Kf6 e7 d3 g7 h3 c3 Nh6 g8Q d2 Qe1 d1Q Ne6 Nf5 Qg2 Nh4 Bd3 Bd7 Bh6 e3 Na3 Qh5 Ne2 Nf3 N2d4 Nc6+ Ka4 a5 b8Q Rh7 b4 Qh8 b5 Nce5 Qb6 Be8 Bf8 Rf7 Bh7 Ng4 Qc6 Rd8 b6 Qc5 b7 Rd5 b8Q Rg5 Qcb5 c6 Qc8 Re5 Nc7 Rg5 Qc1 Rd5 Rd1 h1R Na8 h2 Qd7 Rg5 Nf5 Rf1 Qa6 h1N Nb5 Ng3 Rd3 Rh1 Qcf1 Rg1 Rad1 Rh1 R1d2 Rgh5 Rd6+ Kg5 Rh6 Rg1 Rdd6 Rgh1 Qe2 Rc1 Rdf6 Ra1+ Kb3 Rc1 Qe6 a4+ Ka2 a3 Kb3 a2 Ka4 Qb6 Qd1 a1Q+ Kb4 Qa2 Qa5 Qd5 Qaa4 Qb8 Ka5 Qc5 Qe1 Qb7 Qed1 Qba7#
R3KQ1b/Qn1bpN2/4n1p1/2P1b1r1/RB3Q2/2RBq3/3kq1PP/R1qnN3 w - - 0 1 illegal: No proof kernel
Nk2n1b1/1r2n2B/K2nR3/1pQ1NRr1/P1q4B/1r1PNpQ1/N4P2/2rR3r w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 exd5 h5 gxh5 e6 c3 Bc5 Qf3 Ra7 Qd1 Bd4 cxd4 Ra8 Ke2 Kd7 Kd3 f5 Kc4 c5 Kb5 Kc7 a4 g5 h4 e5 d6+ Kd7 d5 c4 h6 g4 h5 b3 h7 e4 h6 b6 Ne2 c3 Nf4 g3 Qg4 g2 Qg3 g1N Rh5 c2 Nc3 e3 Bd3 b2 Ng2 e2 Ne3 e1R Na2 f4 Rf5 f3 Be4 Ne2 d3 b1R+ Bb2 Rbc1 Bf6 Rg1 Bh4 Ne7 Rb1 Rf8 h8N Na6 h7 Qc7 Ng6 Rf7 h8Q Rb8 Qc3 Bb7 Qc4 Kc8 Qc5 Rh1 Ra1 Rcg1 Rd1 c1R Ne5 Ba8 d7+ Kb7 d8R Nc3+ Kc4 Ka7 d6 Nb5+ Nc2 Qc8 d7 Nac7 Re8 Nd6+ Kb4 Rh7 d8N Bd5 Ne3 Bg8 Ne6 Rg7 Qc2 b5 Ka5 Rb7 Qc6 Kb8 Qc5 Na6 Nc7 Rg5 Na8 Nc7 Rf4 Rc3 Bh7 Rb3 Rf5 Rf1 Ref8 Re1 R8f6 Nce8 Ka6 Qe6 Rg6 Qc4 Re6 Reg1 Rd2 Rgb1 Rd1 Rc1
2B5/B6p/nKp5/NrPPRnk1/1R1n1nnq/b3P2b/1R3RQ1/1N1QN1b1 w - - 0 1 illegal: No possible last move
RR1b2BN/p1Bb1r1R/P4P1N/1b1qQ1n1/2P4K/1n1pbbQ1/k1n5/4R1Q1 w - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 b5 b4 c5 bxc5 f5 h4 Na6 Rh2 Rb8 Rh3 Rb6 Rh1 Rg6 Nh3 fxg4 Ng1 g3 Bd2 g4 Bc1 Rg5 hxg5 Ke7 Ba3 Kf7 Bc1 Ke8 f4 Ke7 a4 Ke6 e4 d5 g6 h5 a5 h4 g7 d4 f5+ Ke7 f6+ Ke6 c6 g2 Kf2 h3 Kg3 h2 c7 b4 Nd2 b3 Nc4 b2 Bf4 b1B Nd6 Nh6 g8Q+ Nf7 Nh3 g1B Nf2 Nb4 a6 Bh6 Kh4 g3 Ng4 Bd7 c8R g2 Rb8 Rh7 c3 Qa5 Bc4+ Qd5 Ra8 Bf8+ Nh6 Be7 Qg3 Ng5 Nf7 Bd8 Nh8 Be3 Qg1 Bd3 Re1 Rf7 Ba2 B3b5 Rb8 d3 Ra8 Be8 Bc4 Kd7 e6+ Kc6 e5 Kc5 e7 Nc2 e6 Bec6 e8R Bd7 Q1f2 g1N e7 Ne2 Bc7 Nc1 Qfg1 Nb3 Rf8 Qe5 e8Q Qd6 Be6 Qd5 c4 Kb4 Rg8 Ka3 Rf8 Rg7 Bg8 Ka2 Qee5 Rf7 Q1g2 Be7 Rfb8 Bd8 Rhf1 h1B Qg1 Be6 Rf4 Bf3 Rg4 Ne4 Rg7 Ng5 Rh7 Bed7
b1q2Rr1/1R1r1rk1/B1N4p/2KBRn1P/1P1P2NQ/2B5/1R2r1qp/Qr5n w - - 0 1 illegal: No proof kernel
3n4/Q1B1b3/1b2Rn2/1PqrbpKQ/1N3B2/3b1bPp/3Q3P/B1qRN1kB w - - 0 1 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 cxd5 Ra7 f4 gxf4 d4 Bh6 d6 Kf8 e5 Kg7 d5 Ra6 d7 Rd6 exd6 Kf6 Ne2 Bg7 Ng1 Bf8 Kf2 Kg5 Kf3 Kh4 b4 h5 b6 e5 b5 f5 b7 c5 Ra3 a4 Be3 e4+ Ke2 c4 Rc3 f3+ Kf2 a3 Bc1 a2 Ke3 a1B Kf4 f2 Re3 c3 Na3 Nf6 Nc2 Be7 Nb4 Qc7 d8Q Qc5 d7 c2 d6 Nc6 b8Q Bb7 Qa7 Ba8 Be2 f1B Bf3 Rf8 Qe8 Bd3 d8B Bb7 Bb2 c1Q d7 Ba8 Bc7 Rh8 Qf7 Rd8 Qd2 Bb7 Ne2 Ba8 g3+ Kh3 Qh7 h4 Kg5 Bb7 Nd4 Ba8 Be2 Kg2 Ndc2 h3 Rd1 Bb7 Ne1+ Kg1 Bbe5 Bd4 Bf3 Bc3 Na2 Ba5 Nb4 Bb6 Qh5 Ba8 Re2 e3 Bh1 Bb7 Ba1 Ba8 Bf4 Bb7 Rf2 e2 Rf3 Ba8 Re3 Bb7 Ng2+ e1B Qc2 Ba8 Re6 Bb7 Rd2 Bf2 Ne1 Bd4 Rd1 Be5 Qd2 Nd4 Qaa2 Bf3 Qa5 Nc6 Qa7 Rb8 d8B Rb7 Qh8 Rd7 Qh5 Rd5 Bc7 Nd8
2Q1b3/1qN4n/pRR1Bbq1/5K2/1B2p1PQ/P1qkP1rB/q4n1R/B4qN1 w - - 0 2 legal: proof: g4 d5 c4 f5 cxd5 fxg4 b4 c5 bxc5 g3 h3 Bg4 Nf3 Be6 Ng1 Bc8 Qa4+ b5 Qa3 g5 Qd3 g4 Kd1 a6 Qb3 g2 Ke1 g3 Qc2 Ra7 Qd1 Rb7 Qc2 Rb6 Qb3 Rg6 Qd1 Rg4 hxg4 Qc7 Rh5 Qa5 Rh1 Qd8 f4 Kd7 d4 e5 Kd2 h5 Kd3 b4 Ke4 b3 c6+ Kd6 c7 b2 e3 h4 a3 h3 f5 h2 f6 Be7 f7 Bd7 c8B Qa5 f8B Nc6 Nc3 b1Q+ Qc2 Qa2 Bb2 Be8 Kf5 Nf6 Be6 Rh3 Rb1 Nb4 Ba1 Nd3 Rb5 Nh7 Rb6+ Kc7 Qc1 Bf6 Bb4 Nf2 Rc6+ Kb7 d6 Qc5 Nb5 Qc3 d7 e4 Nf3 g1Q d8Q g2 d5 Rg3 Nc7 Ka7 d6 Kb7 Bfc4 Qf1 d7 g1Q Qc8+ Ka7 d8R Qgg2 Qe1 Qab3 Rg1 h1Q Rdd6 Qh6 Rh1 Qb1 Rh2 Qg6+ Kf4 Qa2 Ng1 Qh3 Be2 Qhh5 Bf3 Qhb5 Bg2 Qb6 Bh3 Qb7 Rd2 Qg7 Kf5 Qg8 Rc4 Kb6 Rb2 Qg7 Nd5+ Kb5 Rc6 Qc5 Rb3 Kc4 Rb2 Kd3 Rb3+ Qc3 Nc7 Qd7 Qa8 Qf7 Qc8 Rg2 Bf8 Nh1+ Qf2 Qg8 Rbb6 Qg7 Bb4 Qh6 Qf4 Nf2 Qg5 Rg3 Qh4 Qg6+
2NnN1n1/nN1kP1Q1/1K2r1b1/1R6/4B1qp/4pNb1/1BP2QnP/R1q2n1B w - - 0 1 illegal: No proof kernel
1Q1N3n/Qrp1Bnnp/5PB1/2n1N2r/3R3P/b4P2/nBRN1B2/2q1qK1k w - - 0 1 illegal: No possible last move, all moves rejected
1q6/1PRR4/p1Qn1qQ1/N1q2pP1/1knq2B1/3q1NB1/Prb2KB1/r2R1B2 w - - 0 1 legal: proof: h4 e5 c4 b5 g4 bxc4 d4 g5 dxe5 Bc5 f4 Bb6 h5 Bb7 h6 Qc8 fxg5 Bd4 g6 Be3 Nh3 Qd8 Ng1 Bc8 g5 Bc5 Kd2 Bf8 Ke1 Bg7 hxg7 Qf6 Rh6 Qe7 Rh1 Qd8 e4 Ke7 b4 h5 b5 c5 b6 d5 e6 Kd6 e7 h4 e8B c3 Bd7 a6 Bg4 c2 Bf5 d4 Bd3 c4 e5+ Kc5 e6 h3 e7 c3 e8Q h2 Bb2 c1Q Bc2 d3 Qa4 d2+ Kf1 Qd4 Qb3 Nc6 Qa4 Ne5 Na3 Nf6 g8B Ne4 g7 Nc4 Qc6+ Kb4 Bd3 c2 Nf3 Ned6 Bg4 Ne3+ Kf2 Qb1 Bf1 c1Q Nc4 Rb8 Qc2 d1Q Qg6 Bf5 Na5 Qcc5 Bg2 f6 Bc4 Bc2 g8R f5 Rc8 Q1d3 Rd1 h1Q Rc7 Qh6 Rd7 Qhg7 Rc1 Qdf6 Be5 Rh1 Bg3 Qbb2 Rd1 Qgf8 Rc7 Qbd4 Rd2 Rb1 Bb5 Rb2 Rad1 Rd8 b7 Rd7 Rh1 Qb8 Rh7 Rd8 Rd1 Rh8 Rhd7 Rh1 Rd2 Ra1 Rd1 Q3e4 Be2 Qed3 Bef1 Nec4+
1b4b1/Qp2K2k/Rr3Qr1/1bB1Pp2/b2BB1n1/Nb1PB2q/1P3QR1/3N2q1 w - - 0 1 illegal: No proof kernel
B1k3nR/1qBbr2p/4N2P/1P4PQ/2B4K/q1pr2rQ/2rB2N1/1qR1R2n w - - 0 1 legal: proof: c4 g5 d4 b5 f4 bxc4 fxg5 d5 e4 Bg7 exd5 Be5 Qf3 Nc6 Qd1 Bd6 a3 Bb4+ axb4 Nb8 b5 Be6 Nf3 Bd7 Ng1 Bc8 Kf2 Kd7 Kg3 c5 h4 f5 b4 a5 h5 e5 b6 f4+ Kh4 a4 g4 f3 d6 e4 d5 e3 h6 f2 b5 e2 b7 e1R Bg2 f1R Nd2 a3 Nb3 c3 Ne2 c4 Bd2 c2 Nf4 c1Q Nd4 c3 Nde6 Na6 b8B a2 Bc7 Qa3 Rc1 Qe8 g6 a1Q g7 Rf3 g5 Rg3 Qh5 Qe7 Be4 Rd1 Ng2 Nc5 Re1 Nd3 Bf3 Nf2 Be4 Nf6 g8B Qb1 Bf7 Nh1 Bg8 Qf7 Bf3 Ke8 d7+ Ke7 d8R Bd7 Rc8 Qg7 Bf7 Re8 Rd8 Ng8 Rc8 Bc6 d6+ Kd7 Rb8 Re7 Re8 Nf6 Rh8 Ng8 Bd5 Kc8 d7+ Kb7 d8Q Ra5 Bb3 Bd7 Bc4 Ra8 Qf8 Rae8 Bg6 Kc8 Qf5 Rf8 Qfg4 Rf2 Be4 Qf7 Ba8 Qf3 Bcf4 Qb7 Qh3 Re2 Bc7 Rf2 Bdf4 Rc2 Be3 Rd5 Bd2 Rdd3
3q1B2/q1r4p/1bBp3P/1NQPkr2/nP5R/8/QrN1B1R1/R1Kr1qnR w - - 0 2 illegal: No possible last move, all moves rejected
1B4k1/1n1q4/1P2KRN1/1n2n3/1rQQQrBp/2P2q1P/Q1bRN1p1/Rn1r4 w - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 e6 g4 Na6 f4 Be7 g5 Bf6 gxf6 Nb8 Kd2 Kf7 Kd3 d5 b4 g5 c3 a5 h3 h5 b6 h4 b7 a4 b5 a3 b6 e5 Bg2 e4+ Kd2 a2 Bf1 g4 Ne2 g3 Na3 e3+ Kd3 g2 Qc2 Qd7 Nc4 Nc6 b8Q Na5 Qd6 Nh6 Ne5+ Kg8 Ng6 Nf7 Qc6 Nb7 Qc4 Nfd6 f7+ Kg7 f8R Ra4 Rf7+ Kg8 f6 Nb5 f5 Rb4 Bd2 Rh5 Rd1 a1N Q2a2 Nb3 Be1 Rh6 Rd2 Rh5 Bg3 Rg5 Bc7 Rg4 Bb8 Rf4 Rg1 Na1 Rh1 Nc2 Rg1 Nca3 Rf8+ Kh7 f7 Nb1 Rh1 Kg7 f6+ Kh7 Nc1 e2 Rg1 e1Q Be2 Qf2 Bg4 Qf1+ Ne2 Qf3+ Kc2 Ra4 Kb3 d3 Qe4 d4 Re1 Qe8 Red1 Bf5 Rg1 Qd7 Rc1 Ra3+ Kc4 Rb3 Rcd1 Qe8 Kd5 Qd7+ Ke5 Rb4 Qc4 N1a3 Ra1 Nb1 Rc2 d2 Rb2 d1R Rd2 d3 Qed4 Qd8 Qa2 Be4 Ke6 Qe8+ Ne7 Qg3 Rc2 d2 Ke5 Qd7 Ng6 Qd3 Qdc4 Rff1 Rb2 Rde1 Rc2 d1N Rd2 Qc7+ Ke6 Qcd8 Rg8 Qc7 f8Q Nb2 f7 Rd1 Qd8 Rf5 f8Q Qf3 Qdd6 Bc2 Qdd4 Rf4 Qf5 Nd3 Rf8 Ne5 Rf6 Kg8 Qfe4 Qd7+
3qR1bb/k4b1Q/B1QN2N1/P4qR1/P1bqp2r/p3P1n1/1R1B4/2nRKN2 w - - 0 1 illegal: No proof kernel
3nRb2/N2r1P2/qQ1P1R1N/q1pB3n/b3p1bk/qB2P1b1/KB6/2NQ2N1 w - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 a4 a5 h3 b5 axb5 Ra6 h4 Rg6 Nh3 fxg4 Ng1 g3 Ra3 g4 Ra1 Rg5 hxg5 Be6 Qc2 Bd7 Qd1 Bc8 b4 Kf7 d4 Kg6 Kd2 c5 Kc2 e5 Kb2 h5 f4 e4 d6 h4 d5 Kh5 g6 g2 e3 h3 d7 a4 f5 h2 b6 a3+ Ka2 Bg7 d6 Nc6 b7 Qf6 b8N Kh4 d8N g3 b5 Bf8 b6 Bd7 b7 Qd4 g7 Qb4 f6 Rh7 Nf7 Nd8 Nc3 Ba4 Nc6 Qa5 b8Q Qb4 Nh3 g1B Na7 g2 Qb6 Bf2 Nh6 g1Q Ne2 Bg3 Bb2 Qf2 Rg1 h1B Nc1 Qfd2 Bc4 Bf3 Rf1 Bg4 Ng1 Qe2 Bd5 Qa6 Rb1 Qaa5 Ka1 a2 Rf3 Ne7 g8B Nf5 Bge6 Rb7 f7 Ng7 Rf6 Rd7 Bb3 Nh5 Bed5 Rc7 Re6 Rd7 Re8 Bc6 Ba3 Bb5 Rb2 Bc6 Rf2 Ba4 Rf6 Qa6 Kb2 a1Q+ Kc2 Bb5 Bb2 Q1a5 Kb1 Ba4 Ka2 Qa3+
3r4/b2RB1kN/1qQNQr1n/3p4/qRP5/3Np1Nr/K1b1PPB1/5bQb w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 c5 h3 cxd4 gxf5 Nc6 h4 g4 Rh3 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Bb7 Kd2 Ba6 Ke1 Bc8 Kd2 Kf7 c4 d5 Kc2 h5 Kb3 e5 g6+ Kg7 b6 a5 b7 h4 b8N e4 Nd7 d3 Bg2 g3 Nh3 d2 f6+ Kh6 g7 a4+ Ka2 e3 b4 a3 f7 Qf6 b5 Qg6 b6 Qe6 b7 Bc5 f8N Qb6 Qg1 d1B b8Q Bc2 Ng5 h3 Nfh7 h2 Ne5 Bh3 Qe8 Rd8 Nc3 Qb5 Bb2 Ba7 Rb1 Qb6 Nce4 Qb5 Ka1 a2 Ba3 Qb6 Nd6 Qb5 Bf3 g2 Rb4 Qb6 Kb2 a1R Nge4 Rb1+ Ka2 Rb3 Qe1 g1Q Ng3 Bf1 Nd3 Rb1 Qd7 Kg6 Qc8 Nh6 Bg2 Rhf8 Qc6 Rf6 Qc3 Re1 Qe5 Rc1 Qe6 Rd1 Nb2 Rd4 Nd3 Rh4 Qe5 Rh3 Qa1 Ng4 g8Q+ Kh6 Qe6 Kg7 Bb2 Nh6 Bd4 Qb5 Bb6 Ra8 Bd8 Rb8 Be7 Rd8 Be4 Qg2 Rg1 h1B Bf3 Qh2 Bg2 Qb6 Nge4 Bb8 Nb7 Ba7 Bf8+ Kg6 Bf3+ Bfg2 Qd1 Qb8 Nbd6 Qc5 Qf1 Rg3 Qe1 Bh3 Rg2 Qcb5 Qg1 Rg4 Rg3 Bf1 Bg2 Rg5 Rg4 Q8b6 Ng3 Ba4 Qed7 Bc2 Re4 Rg4 Re7 Rh4 Qe6 Rh2 Rc7 Rh3 Be7 Kg7 Rd7 Qa4+
r2R1Rq1/5P2/3Q4/2R2P1q/1KrpN2B/1br1pB1n/4PQNB/Bnnn3k w - - 0 1 illegal: No possible last move
4N1n1/p2b3N/PB1b1nB1/1PP2bK1/3p1n2/Nq1q4/N1Q2n1r/1QRRB1k1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 c4 c5 h4 Na6 hxg5 Rb8 Nf3 Rb6 Ng1 Rc6 Ke2 bxc4 Ke1 c3 Nh3 c4 Ng1 Rc5 dxc5 Qb6 Rh4 Qc7 Rh1 Qd8 Ke2 Kf7 Kf3 d5 Kf4 h5 a4 c2 g4 d4 b4 e6 g6+ Kf6 b5 h4 g7 c3 g5+ Kf7 a5 h3 f6 Kg6 f7 h2 Ne2 Kh5 g6 Kh4 Na3 Qe8 Bd2 c1N Be1 c2 Nc3 Nb8 a6 Bd7 Bd3 Kh3 Na2 Kg2 Kg5 e5 f4 e4 f5 e3 f6 Bd6 f8B e2 f7 Qe6 Be7 Qb3 f8N Rh7 Rf1 h1B Bd8 Rh2 Bb6 Bf5 Rb1 Nd7 Nh7 Ndf6 Qd2 Bd7 Bf5 Nd3 Rd1 c1N Qc2 Nf2 Qb1 Nh6 g8Q Ncd3 g7 Nf4 Qc4 Nhg8 Qcc2 Qd3 Bg6 Bf5 Bea5 e1Q Rc1 Qe6 Rfd1 Qeb3 Be1 Ne7 g8N Kg1 Qd2 Bc6 Qdc2 N6d5 Ngf6 Bcd7 Ne8 Ng8 Qe2 Ndf6 Qe4 Qdc3 Qec2 Qd3
2Q2K2/1BBBpN1r/1q1b1nR1/p2rQ1Pq/P6P/r2R4/2RRN3/1krq2n1 w - - 0 1 legal: proof: g4 c5 e4 h5 b4 d5 bxc5 dxe4 f3 g5 gxh5 g4 Bc4 g3 Bf1 Bg4 fxg4 Qa5 Bd3 Qc7 Bf1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 Kd4 a4 f5 Kg6 a5 Kf7 b5 c4 e3 h4 f4 h6 g2 g5 b4 c6 e2 h7 Kd3 c5 f3 c7 f2 c8Q b3 c6 b2 c7 Na6 Na3 b1Q Nb5 Qd6 Ra2 Qa3 Rh2 Nb4 Rc2 Bg7 Nd6 Na2 Qe1 Be5 Kf8 Qb6 Nf7 Bd6 Bb2 Nc1 Be5 Qab4 Bg3 Qg4 Bf4 Ke4 d4 Kd3 d5 Qh5 Rd2+ Kc3 Rd3+ Kb2 Qc3+ Kb1 Qe5 e1Q Ne2 g1R Bh3 f1R Bd7 Bb4 d6 Rf3 Rd2 Qd1 Rc2 Rb8 Rh3 Rf2 Rd3 Nf6+ Kg7 Rff1 Rd4 Nb3 Bf5 Qb7 Qc5 Nd2 d7 Rf3 d8R Rd3 R8d5 Qe1 Bd7 Rdg3 Be5 Nf3 Rdd2 Qa7 R5d4 Rb5 Qc3 Rd8 h8R Rd5 Rh6 Qb6 Rg6 Rh8 Bf4 Rh7+ Kf8 Rf1 Bd6 Bc5 Qe3 Ng1 Qe5 Ra3 R4d3 Rf3 Qa6 Rf1 c8B Qc1 Bc7 Bd6 Qa8 Re1 Bb7 Rd1 Qc8 Re1 Rc5 Qc2 Rc6 Rc1 Rc4 Qd1 Rc6 Ng4 Rcc2 Nf6
2Rr2q1/nn1RB2q/NP3p1p/B3RQ2/B3rB1P/P2n1Q2/3N1nqK/b3k3 w - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 b4 g5 f4 Bd7 fxg5 axb4 Ba3 b3 Bb2 b4 Bc1 Bb5 cxb5 Bh6 Ba3 Bg7 Bc1 Bf8 Kf2 Kd7 Kg3 Kd6 d4 c5 h4 e5 a3 h6 g6 e4 g7 b2 Kh3 e3 g4 e2 g5 e1N g6 c4 Nf3 b3 Ng5 c3 Qf3 c2 Ne6 Nd3 Nd2 b1Q Nc7 b2 Kh2 Ne7 g8Q Nf5 g7 Ra4 Qh7 Qa2 g8R b1Q Na6 Nf2 Be2 f6 Re1 Nc6 Bd1 Na7 Re5 Be7 Rg7 Qg8 Rf7 Bd8 Rc7 Rc4 Rc8 Ba5 Qg6 Bc3 Qgg4 Kd7 d6 Ra4 d5 Re4 Nc4 Bb2 Bf4 c1N Ba4 Ncd3 Nd2 Qc2 Rb1 Ba1 Rb4 Qh7 Rd4 Rd8 Qg5 Ng7 Qgg4+ Ne6 Qg5 Nec5 Qg6 Qe7 Qh7 Nb7 Qf5+ Ke8 d7+ Kf7 d6 Qac4 Q5h3 Kg6 Rdd5 Qh7 Rd4 Re8 d8B Qcg8 Ba5 Rd8 b6 Qca2 d7 Qb2 Bg5 Qba2 Qff5+ Kh5 Bf4+ Qg5 Qe3 Qag8 Qg6+ Kg4 Rdd5 Re8 d8B Rf8 Be7 Rd8 Qf7 Q5g7 Rd7 Qg5 Qd5 Q5g6 Nb3 Qg5 Qec5 Kf3 Nd2+ Ke2 Qcc6 Q5g7 Qde6 Ke1 Qf5 Re2 Qg2 Re4 Qf3 Qg2+
2K3n1/2n2B1b/Q2RrB1P/q2N1qq1/N1NNpRnp/1P4k1/3rP3/B2Q1n2 w - - 0 1 illegal: No proof kernel
2qBB3/Nk1pn3/q1N5/K1RPnQ2/5Q2/1bnNrn2/1p3PP1/1R1bbQQ1 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 b5 hxg5 Ra7 c4 Rb7 Rh6 axb4 Rh4 b3 Rh6 b4 Rh1 Rb5 cxb5 Bg7 Ke2 Bh6 Ke1 Bf8 a4 e5 d4 h5 Kd2 c5 f6 e4 b6 c4 g6 h4 d5 b2 a5 h3 b7 b3 Kc3 e3 g7 e2 a6 e1N a7 h2 a8Q Nc6 b8N Ne5 Ra5 Ba6 Nf3 Rh3 Nc6 Ne7 Kb4 c3 g8Q c2 Na3 b1B Qe6 b2 Qf5 Bc4 Bg5 c1N Nb5 Qc8 Bd3 Ne2 Nba7 Nc3 Rc5 Bb3 Ka5 B1c2 Qb8 Rg3 Qb5 Rh3 Rg1 h1Q Be4 Rg3 Qf1 Qh4 Qb1 Bd1 Rh1 N5d3 Nfe5 Re3 Bf3 Qc4 Bh5+ Ng6 Qa1 Nf3 Qc1 Nde1 Nd3 Ne5 Qb1 N1f3 Qg1 Bdc2 Qbf1 Bd1 Nb8 Kd8 f7+ Be7 Nbc6+ Kc7 f8Q Kb7 Qf4 Bd6 Bd8 Ne7 Be8 Re1 Qe2 Ne4 Qgh2 Bdc2 Qd1 Re3 Q8f5 Qa8 Qe2 Qc8 Rb1 Bd1 Qf1 Re1 Ncb4 Re3 Rc6 Bc5 Qhg1 Bd4 Qh4 Bc3 Qhf4 Be1 Rc5 Nc3 Nbc6 Qa6+
1RQQ4/Rn1pr1pN/1Q3B1q/P2P1B2/1r1b1r1P/6qr/5k1N/n1BQ1q1K w - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 b5 gxh5 Ba6 c4 axb4 Bg2 b3 Bh3 b4 Bf1 Bb5 cxb5 Rh7 Bd3 Rh6 Bf1 Rh8 a4 Kf7 f4 Kf6 Kf2 e5 Kg2 c5 d4 e4 h6 b2 b6 c4 h3 e3 h7 e2 b7 e1R d5 c3 Rh2 c2 Nc3 b1R Nf3 b3 Bd3 Na6 b8Q Re7 Kh1 Qc7 Qb6+ Qd6 Re2 b2 Nh2 Nh6 h4 Ng4 Re4 Ne3 Rb4 Nc5 Ra3 Rg8 h8Q Nb7 Rbb3 Rc8 Rb5 Rc4 Ra2 Rb4 Ne4+ Kf7 f6 Kg6 f7 Kf5 Ra3 Ra1 Ra2 b1Q Ra3 Qg6 Ra2 Qg3 Nf6+ Ree4 Ra3 Bc5 f8B Bd4 Be7 Re8 Nh7 Ra2 Bf6 Re7 Qa8 Rab2 Qad8 R2b3 Rc5 Qa1 Rc8 Qb1 Rb8 Qa1 Nf3 Kg4 f5 Rf4 Nh2+ Kh3 Bg5 Rc3 f6 Qb1 f7 Rcb3 Bb2 c1Q f8Q Nc2 Bf6 Na1 Qc8 Qd2 Bc1 Qde3 Qfd8 Qe6 Bg5 Qh6 Bg6 Qbd3 Bf6 Qe2 Nf1 Kg4 Bf5+ Kf3 Nh2+ Kf2 a5 Rbe3 Rc3 Qgg5 Rc7 Rh3 Qe8 Qg3 Qed8 Nd6 Ra7 Nb7 Qbc7 Qed3 Qb6 Qf1+
1QQ2r2/2KbR3/PPn4N/Q1p2pN1/N2Rq1n1/BrP3nq/B1k4q/q5Q1 w - - 0 1 illegal: No proof kernel
2Q1n3/qB1QK1Nb/1p5P/N3k1rb/1PRbp1R1/4nq1P/3n2n1/2R2RBQ w - - 0 1 legal: proof: e4 f5 exf5 c5 d4 cxd4 g3 Na6 g4 Nb8 a4 h5 gxh5 b6 a5 Na6 Bd2 Rb8 Bg5 Rb7 Bc1 Nb8 a6 Kf7 axb7 Ke8 Nd2 a6 Nb1 a5 Kd2 Kf7 Kd3 Kf6 Kc4 e5 Kd5 g5 b4 d3 c4 e4 f4 d6 h3 a4 c5 g4 h6 d2 c6 g3 c7 a3 Ba6 a2 Na3 g2 Ne2 g1N Ng3 Ne2 Nc4 Nd7 b8Q Bg7 Bb7 Ne5 Rg1 Qf8 Qa7 Nf3 Na5 Be6+ Kc6 d5 c8Q d4 Rg2 d3 Qh1 d1B Be3 d2 Rc1 a1Q Bg1 Bf7 Kd7 Bg6 Rc4 Bh7 Nh5+ Kf7 Rc1 Bd4 Ng7 Kf6 Rg4 Qa3 Qc7 Qa8 Qab8 Qa7 Qbc8 Ne1 Kd6 Nc3 Q7d7 Nb1 Rc4 Ng2 Rc1 Ne7 Rc4 Rg8 Rc1 Kf7 f6 Qf3 f5 Be2 Rc4 d1N Rc1 Nde3 Rc4 Rd8 Rc1 Nd2 Rc4 Kg8 Rc1 N7d5 f7+ Kh8 f6 Nc7 Ke7 Rg8 f8R Ne8 Rf7 Bd1 Ne6 Rg5 Ng7 Kg8 Rc4 Bf5 Rf8+ Kh7 f7 Kg6 Rh8 Be6 f8R Bg8 Rc1 Bh7 Rf5 Be2 Rfc5 Bd1 R5c4 Be2 Ne6 Kf5 Rf8+ Ke5 Ng7 Qg3 Rff1 Bf3 Rh4 Bh5 Rg4 Qf3
r1q5/p3K3/R2rB2k/P1N5/1PBr1qRp/N1nQ1bBP/NQB2r2/3n2q1 w - - 1 2 legal: proof: d4 e5 dxe5 b5 c4 bxc4 f4 g5 fxg5 d5 e3 d4 Qd2 d3 Qc2 Bc5 Qd1 Bd4 exd4 Qf6 Kd2 Qd6 Ke1 Qd8 Kd2 Kf8 Ke3 Kg7 Ke4 h5 a4 c5 g4 c3 b4 h4 e6 f5+ Ke5 d2 d5 c2 d6 f4 h3 c4 g6 c3 g5 f3 e7 f2 e8Q Rh5 d7 Rh6 Ke6 Rh7 Ne2 Ba6 Na3 Qc8 Rg1 Bd3 Rg4 Nf6 Ke7 Ba6 d8N Nbd7 Nb7 Rh6 Nc5 Nb6 Qb5 Ne4 Qd3 Bb5 Bb2 c1Q Q1c2 Qb1 Nc1 d1R Na2 Bc6 Be2 Rd2 Bd1 f1R Qb3 Nc4 Bc2 Rff2 Bc1 Bb7 Qb2 Rd1 Bf4 Ne3 Bg3 Rdd2 a5 Qg1 Re1 Nd1 Re3 Nd6 Re6 Nb5 Rf6 Bf3 Ra6 Kg8 g7 Rd6 Ne4 Kh7 g8B+ Kg7 g6 Kh6 Nc5 Rd4 g7+ Rd6 Ba4 c2 Bc4 c1Q g8B Nbc3 Bge6 Rd4 Bc2 Rd6 Qe4 R2d4 Qd3 Qf4
2K2b2/Bp1Bb2k/3r4/1Qb5/pn1P1Pq1/Q1NqRN1b/Pn2q2R/1Q2N1Q1 w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 c5 bxc5 f5 h3 a5 gxf5 g5 h4 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Be6 Bb5+ Bd7 Bf1 Bc8 Ke2 Kf7 Ke3 Kg7 Kf4 h5 Ke5 g3 f4 e6 c4 e3 g6 h4 c6 a4 f6+ Kh6 g7 h3 f7 h2 c7 g2 c5 e2 c6 e1B Nc3 Bh4 Bb5 Bfe7 f8N Ba3 Nh7 Bf8 Ng5 Ne7 g8Q Na6 N5f3 Nf5 Ne1 Nb4 Ngf3 g1B d3 Qg5 Be3 Qg4 Qb1 Nd6 Ba7 Bc5 d4 Bd7 c8Q Bhe7 c7 Nc4+ Ke4 e5 Qe8 Bc8 Bd7 Nb2 Qb3 Kg7 Qa3 Rh6 Qg6+ Kh8 Qa6 Kh7 Qb5 Nc2 Kd5 e4 Ke5 e3 Kd5 e2 Ke5 Rf6 Kd5 Rf5+ Ke6 Nb4 Rg1 h1Q Rg2 Kh6 Rh2+ Rh5+ Kf7 Qf1 Ke8 Bed6 Kd8 Kg7 Q1d3 Rd5 Rc1 Qfh3 Qb1 Kh8 Rd1 Kg8 Rd3 Kh7 Be6 Bd7 c8Q Bde7+ Kc7 Rd6 Re3+ Qf5 Qe8 Qd3 Qg6+ Kh8 Nc2 e1Q Qg1 Qee2 Nce1 Kh7 Kb8 Be8 Bc8 Bd7 Kc7 Bg4 Bd7 Qh4 Kb8 Bh3 Kc8 Qg4
r1BBR1Qq/1BpB1RqP/1k6/2pQ1rq1/3Pn1N1/2qN1nK1/2P1b2Q/3r4 w - - 0 1 illegal: No proof kernel
2QnnR2/1bK5/1p3qPp/3b2Nq/P1BQq1R1/1P3Q2/2kbBN1B/1br3Q1 w - - 0 1 illegal: No proof kernel
rN2b3/1n1r1qpQ/N3B2K/5R1p/N1QbrR1P/B1b1q1P1/3N1BkP/7b w - - 1 2 illegal: Other
rQB1R1Q1/1b3pnq/1Nq1r2r/b1q1p2k/P1PB1R2/4RPR1/K6q/1B3N2 w - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 h5 gxh5 Nd7 dxc5 axb4 Be2 d4 Bc4 Nb6 Bf1 Nd5 exd5 Be6 Kd2 Bd7 Ke1 Bc8 Kd2 e5 a4 g5 c4 b5 Kc2 d3+ Kb3 d2 h4 g4 f3 g3 d6 g2 c6 Rh7 d7+ Ke7 h6 Kf6 c7 Kg6 h5+ Kg5 Bd3 Nf6 Ne2 g1Q Nf4 Rg7 h7 Qe8 d8R Rg6 h8Q Ba6 c8B Rh6 Ra3 Bb7 Rh3 Qc6 Rd4 Qh2 Bb2 Ne8 Ka2 Ng7 Qb3 d1Q Nd2 Qdg1 Bb1 Re6 Re4 Qgc5 h6 Bd6 h7 Bc7 Qf8 Ba5 Nd5 Rh6 Rg3+ Kh5 Bd4 Re6 Qb2 b3+ Ka1 b4 Nf1 Rh6 Rf4 Re6 Qg2 b2+ Ka2 Rh6 Re3 Re6 Bf5 b1R Nb6 Rd1 Bb1 b3+ Kb2 Rh6 h8R Rd2+ Ka1 b2+ Ka2 Rd3 Qd6 Rb3 Qb8 Rd3 Bc3 Rd6 Re8 Rdg6 Qc2 Re6 Qh7 Qe4 Qg8 Qh7 Be4 Qc6 Bd4 b1Q+ Ka3 Qbb5 Bb1 Qbc5+ Kb3 Qh1 Ka2 Qh2+
4R2r/B1P1Kqq1/pr1p4/4R1Rb/1kn2B2/nBnQ4/1BPPN1r1/3r1NQ1 w - - 0 1 illegal: No possible last move, all moves rejected
q5nB/p1k2NQR/4B3/2q1N2n/2rPBQ1n/Pb1bbP2/1R2p1RB/b6K w - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 f5 h3 c5 bxc5 b5 gxf5 g5 h4 g4 Rh2 Na6 Rh3 Rb8 Rh1 Rb6 Qf3 Rg6 Qd1 Rg5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 d4 Kd7 c4 h5 f3 e5 Kf2 h4 Kg2 b4 g6 b3 a3 b2 c6+ Kd6 c5+ Kc7 g7 g3 f6 e3 f7 e2 Nd2 b1B Nc4 e1Q Bd3 e4 Ne5 e3 Ra2 e2 Be4 Nb4 Bf4 Qc3 Qc1 Nc2 Nh3 Be6 Ng5 Qa8 Rb2 h3+ Kg1 g2 Bh2 Bd6 f8B Ne1 Ngf7 Bd3 Qf4 Bb3 Be7 Rh6 Bg5 Re6 Bf6 Re8 Qd2 Rc8 Qf4 Ne7 g8Q Qc1 Qg6 Ng8 Qg7 Qc4 Kf2 g1B+ Kg3 Be3 Rg1 Bd2 Rg2 Bc3 Kf2 Be7 Kg1 Qb5 Kh1 Qc4 Rc2 Ba1 Rb2 Qd5 Qgh6 Bd8 Bh8 Bg5 Qg7 Bh6 Qfg4 Be3 Qf4 Kb8 c7+ Kb7 Rg3 Ng2 c6+ Kb6 Rg5 Qc5 Rg4 Nh4 Rg2 Rd8 c8B Kc7 Bd7 Rb8 Bc8 Rb4 Be6 Rc4 Bh7 Kb6 c7 Kb7 c8R Kb6 Bg3 h2 Bg6 Kb7 Be4+ Kb6 Re8 Kc7 Re7+ Kb6 Qgg5 Bc2 Nh6 Rc3 Rh7 Bd3 Nhf7 Kc7 Qg7 Rc4 Rf2 Nf5 Kg2 h1N Bh2 Nhg3 Kg1 Nh5 Kh1 Nh4 Rg2 Qcc6 Qg6 Qb5 Qg7 Qc5
2k1bQB1/5n2/p3b1nq/b2qR3/KQr1RnPp/1n2P3/P1NQ3N/B4QB1 w - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 g3 h3 Be7 Rh2 Bd6 Rh1 Bf8 Kd2 g5 Rh2 b5 Rh1 g4 Ke1 g2 Nd2 a6 Nb1 g3 Qd2 Nf6 Qd3 Rg8 Qd2 Rg4 hxg4 Ng8 Qd1 Qh4 Nf3 Kd8 Rh3 Bg7 Qd2 Nh6 Qc3 Bb7 Rh2 Nc6 Nbd2 Ke7 Kd1 Rh8 Qd3 Ng8 Ng1 Nb8 Ke1 Bc8 Rh1 Ke8 Nb1 Qd8 Qd1 Bf8 Kd2 h5 Kc3 d5 Kb4 Kd7 f4 d4 c4 h4 e6+ Kc7 e7 d3 e8Q d2 f5 Nd7 f6 Rh6 f7 Bb7 Qe4 Ne5 Nf3 g1Q Nh2 g2 Bb2 Kc8 Na3 Rd6 c6 Bg7 f8B Qgb6 c5 g1N c7 Nh6 Nc2 Bd5 Qe1 d1B Qd2 Bh8 Bg7 Re6 Bd4 Nh3 Bg1 Ng6 Ka3 b4+ Ka4 b3 Qeb4 b2 Rc1 b1N Ba1 Kb7 e3 Nf7 Bc4 Rc6 c8Q+ Ka7 Bb3 Nhf4 Qf5 Kb7 Bc4 Rc7 c6+ Kb8 Qfd3 Be6 Qf1 Bc3 Bd5 Kc8 Bb3 Rd7 c7 Rd4 Bc4 Be2 Bb3 Qd5 Rd1 Kb7 Rc1 Rc4 c8Q+ Ka7 Qf8 Kb7 Rd1 Kc7 Qc1 Qbd6 Rd4 Nd2 Re4 Bd3 Qe7+ Kc8 Qb2 Bf6 Qf8+ Bd8 Qbc1 Nf3 Qd2 Nd4 Nf3 Be2 Rh3 Bd1 Nh2 Be2 Rf3 Bd3 Qg7 Ba5 Qf6 Qf8 Qe7 Qh6 Qf8+ Qd8 Re5 Be4 Rf2 Bc6+ Rb5 Ng5 Qfe1 Rc3 Qf1 Nd5 Qfc4 Bf5 Qce2 Be8 Bc4 Nb3 Rf4 Qd7 Rd4 Ndf4 Bg8 Rc4 Re4 Nf7 Qed3 Be6 Qf1 Rc6 Rg5 Qd5 Rge5 Rc4+
2N1Q1Rn/rNq1Q2p/p3Rr1k/1r6/1n3N2/1B1N2Br/PP2qP1B/1b4Kq w - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 f5 gxf5 bxc4 h4 g4 Bg5 Be7 Bc1 Bg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 e4 Kf7 f6 Kg6 f7 c5 f8B d5 e6 c3 e7 g3 e8N d4 e5 a6 e6 g2 e7 c4 Nh3 g1Q Na3 c2 Bf4 c1Q Nd6 d3 Nc2 c3 Bh2 Nc6 Nb4 c2 Nb7 Qe3+ Qe2 Nh6 e8Q+ Nf7 Bfd6 Rf8 Bdg3 Bf5 Nf4+ Kg7 g6 Ra7 Rb1 Kh6 g7 Nh8 Ra1 Qf3 Q2e7 Rf6 Rc1 Qgg2 Rg1 Qc7 Rb1 Qh1 g8N+ Kg5 Bh3 d2+ Kf1 Qh5 Re1 c1R Bg2 d1R Nbd3 Rc3 Bd5 Nb4 Bb3 Rd2 Re6 Qg4 Ne1 Rd5 Ned3 Be4 Na5 Rb5 Nb7 Qhf3 Rg2 Qh5 Kg1 Qe2 Q7d8 Qhf3 Ne7 Kh6 Nc8 Bf5 Qde7 Bg6 Ne5 Bb1 Ned3 Qfc6 Bh4 Qce4 Rg8 Qec6 B4g3 Qd5 Ne1 Re3 Ned3 Qdc6 Bh4 Rh3 B4g3 Qh1+
3B2B1/1N3p2/N1Q2q2/3B2QK/1bpR2rP/nQP1q2Q/3qkPr1/1b1Rrr2 w - - 0 2 legal: proof: h4 b5 a4 e5 axb5 g5 d4 gxh4 dxe5 Qe7 g3 Qd8 Bf4 h5 Rh2 h3 Nd2 h4 Nb3 Nc6 Nd2 Nd4 Nb1 Nf5 Rh1 h2 Bh6 h3 Bc1 Nh4 gxh4 Bc5 Qd2 Be7 Qd1 Bf8 e4 Ke7 Ke2 Ke6 Kf3 c5 Kg4 d5 b4 a5 b6 a4 c3 c4 b7 d4 b8Q a3 b5 d3 b6 d2 b7 a2 Qb3 d1R Nf3 Qd4 Bd3 Bd6 Ng5+ Ke7+ e6 Kf6 Na3 Ke5 Nb5 Qa7 Nc7 Qc5 Na6 Nh6+ Kh5 Re1 e7 Rg8 e8B Bf5 Ne6 Rg4 Bc6 Qe3 Qg8 Bb4 Qg5 Rg8 Nd8 Rg2 Ba3 Ng4 Rd1 a1Q Bd5 Qb2 Rg1 h1R b8Q+ Bd6 Q8b7 h2 Qc6 Bb4 Nb7 Qbd2 Rf1 Rhg1 Bc2 h1Q Qc8 Ba5 Be7 Bb4 Bd8 Qhh3 Bd3 Qf4 Bc2 Ne3 Bb1 Nc2 Qd7 Qc1 Rd4 Qhe3 Qc8 Na3 Bc2 Re2 Rfd1 Rf1 Qc6 Rgg1 Qg4 Ree1 Qh3 Qcd2 Bb1 Qfg3 Bc2 Kf4 e5+ Be4 e6 Kf3 e7 Rg2 Bb1 Qf4 e8Q Rg4 Qg8 Qf6 Qg5 Ke2 Bc2 Qge3 Bb1 Bf3 Bh7 Be4 Bg8 Bb1
4B1kr/2pn1n2/4P1BQ/1p4bK/PQ2Rq2/1R2n1Br/rBPQ3r/2N1q2N w - - 0 1 legal: proof: g4 a5 d4 g5 b4 axb4 h3 e5 dxe5 f5 Bb2 b6 Ba3 Bb7 Bc1 Bf3 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Qg5 Bd2 Qh4 Bc1 Qd8 a4 Kf7 e4 h5 Ke2 d5 Kf3 b3 f6 h4 g5 g2 Kg4 b2 f4 b5 f5 h3 g6+ Ke8 f7+ Ke7 g7 h2 f6+ Ke6 Nh3 g1N Bd3 d4 Nd2 b1Q Nf2 Ne2 Nb3 Rh7 Ra3 Rh3 Bb2 Qe8 Re1 Be7 f8Q h1R f7 Bh4 Kh5 Nc3 Qb4 R1h2 Nh1 Nh6 g8Q Qc1 Qg5 Nd5 Re3 Qe7 f8B Kf7 Qf4+ Qf6 Bd6 Kg7 Qe2 Qe1 Qd1 Nf7 Qh6+ Kg8 e6 Qff2 e7 Nd7 Bc5 Qf4 e5 Rb8 Bf5 d3 e6 d2 Re4 Rd8 Qe2 d1R Bf2 Ra1 Bg6 Ne3 Nc1 Ra2 Bg3 Rc8 Qed2 Rb8 Qg5 Rf8 Rc3 Kg7 e8B Rh8+ Qh6+ Kg8 Rb3 Bg5+
2q2NB1/3nR1bQ/1k1rbb1Q/1PNpr1bR/3KR3/BRp2PN1/3Pb3/3b4 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 a4 Ne4 h4 gxh4 a5 Nc3 b6 Nd5 b5 Nf6 Ne2 Bc8 Ng1 Ng8 a6 Nc6 Qe2 Na5 Qd1 Nb7 axb7 Bg7 Ra5 Bh6 Ra1 Bf8 Ke2 e5 Kd3 c5 b8Q h5 g4 a5 f6 d5 g5 Kd7 g6 a4 f7 c4+ Kc3 a3 b7 a2 g7 e4 Bd3 e3 Qa7 Kc7 Bf5 h3 Be4 e2 Qe3 e1B b8N h2 Ba3 h4 Qh5 h3 Ne2 Be6 Qeh6 Nf6 g8R Bg7 f8R Ra6 Rf7+ Kb6 Ng3 Qc8 Kd4 Rh7 Re8 Nd7+ Qf6 Rh6 Nc3 Ra4 Rc1 a1B Bh7 Ra6 Qf5 Rh5 Rfe7 Bb2 Qe4 Re5 Qh6 Bf6 Rb1 Bg5 Rg1 h1B Bg8 h2 Qeh7 Bf3 Rh1 Ba1 Rb2 Be2 Nce4 Bf6 Nc5 Bg7 Rg1 h1B Rf1 Bg2 Rh1 Bgf3 Rh3 Bd1 Rh5 Bfe2 f3 Bf6 Rf8 Bg7 Rf4 Bf6 Re4 Bg7 Nf1 Bh4 Ng3 Bg5 Q6g6 Ka5 Qf6 Rd6 Qfh6 Nb6 Nbd7 B7f6 Nf8 Nd7 Bb4+ Kb6 Ba3 Bg7 Kc3 Rf5+ Kb4 Bf7 Rb1 Baf6 Rb3 Re5 Kc3 Be6 Kd4 c3
R4bk1/rN2r2p/2Q3n1/2B3PP/2Rn4/1bPN2R1/b1B1pQr1/KrN2Nn1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 f4 c5 fxg5 d4 d3 Qd5 exd5 c4 Ra2 cxd3 Ra3 Nd7 Ra1 Nb8 Kd2 a5 g4 e5 h4 f5 b4 Kf7 d6 f4 b6 e4 c3 f3 b7 a4 h5 f2 g6+ Kg7 b5 a3 d7 a2 d8N Ra7 b6 Nh6 Ne2 Nf5 Qc2 Bd7 Rh4 Nc6 b8N Ne5 b7 Rg8 Ba3 e3+ Kc1 d2+ Kb2 d1R Nd2 d3 Nc1 Be6 Bc5 Re1 Nbc6 Nd4 b8Q Bc4 Be2 f1N Qd6 Nh2 Nb4 Nhf3 Bd1 Ng1 Nf1 d2 Qc6 e2 Qf5 Re7 Bc2 d1B Nb7 Kh8 Qf2 Bf7 Be4 Bdb3 Bc2 Rg7 Nbd3 Kg8 Qc7 Rd1 Qc6 Rd2 g5 Bfe6 Rb1 a1R Rf4 Rgf7 g7 Ra7 Rh4 Ba2 Ka1 Beb3 Rg4 Ng6 Rg3 Rf4 Rb2 Rg4 Rb1 Bd5 Rb4 Bdb3 Rc4 Rh4 Bd1 Rb2 Bc2 Rh2 Qe1 Kf7 g8R Rg2 Rh8 Bg7 Re8 Bf8 Ra8 Kg8 Qf2 Rb1+
3r2Q1/6B1/1K2Qp1N/3pn2b/1R1n1RrN/1nr1B1bP/1P1P1bNk/1BNb4 w - - 0 1 illegal: No proof kernel forced: bxDB
2Kbr1b1/4k1b1/p2R4/B1pnnQ2/1r1r1Q2/P1bQ1Nn1/1PP1NR2/QNB5 w - - 0 2 legal: proof: e4 d5 exd5 g5 g4 f5 a3 b5 Bc4 b4 Ba2 b3 gxf5 bxa2 h3 g4 h4 Qd6 Qe2 Qg6 Qd1 Qg5 hxg5 Kd7 Nc3 Kd8 Nb1 Ke8 Ke2 h5 Ke3 e5 Ke4 c5 d4 a6 f4 h4 d6 h3 Kd5 h2 g6 e4 g7 g3 f6 e3 d7+ Kd8 Ke6 g2 f7 e2 d5 e1B f5 Rh7 f6 Bf2 Nf3 g1B Qd3 Ne7 g8Q Kc7 d6+ Kc6 Qh8 Bb7 d8B Nd5 d7 Bh4 Ba5 Bg7 f8Q Bd4 f7 Bc3 Rf1 h1N Rf2 Ng3 d8Q Be7 Qf5 Rh4 Qhh5 Rf4 Qh1 Nd7 Qg1 Ne5 Qf1 Nb4 Qdd3 Nd5 Qb8 Rg4 f8N Rb4 Ng6 Bg5 Qbf8 Bd8 Nf4 Rb8 Ne2 Ba8 Be3 Rd4 Qf4 Rbb4 Q8f5 Bb7 Nbd2 Ba8 Rd1 a1R Qg1 Rc1 Nb1 Bb7 Rd2 Re1 Rd1 Ba8 Bc1 Ng6 Kf7 Ne5+ Ke8 Kd6 Qf1 Ne7 Rd2 Bd5 Qg1 Bg8 Qh1 Bc7 Rd1 Nd5 Qf1 Bb8 Kd8 Bc7+ Kc8 Bd8 Bd2 Bf8 Nc1 Nf6 Qc4 Rd5 Qa2 Bg7 Qa1 Ree4 Qh6 Ng4 Qhf4+ Ree5 Qb5 Rd3 Ne2 Rd5 Qh6 Re8 Bc1 Ke7 Qhf4 Ne5 Rd2 Rdd4 Qc4 Re4 Rd6 Rd4 Qcd3 Nd5
1Q4K1/2p1kPBB/1r2pbR1/1Pr1Pr2/2bnNq1B/4R1N1/B2r4/bNb3Q1 w - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 axb5 Nc6 cxd5 Nd4 Qc2 Ne6 Qd1 fxg4 Qa4 g3 Qb3 g4 Qd1 Ng5 hxg5 Bf5 Ra5 Be6 Ra1 Bc8 d4 a5 Kd2 h5 Kd3 g2 Ke4 e6 Ke5 h4 f4 g3 e4 h3 b4 h2 f5 a4 g6 a3 b6 a2 b5 Rb8 b7 Bh6 g7 Ne7 Kf6 Ra8 g8B Qd7 b8Q Kf8 d6 Ra5 e5 Nc6 d5 Na7 Bc4 Ra6 Ne2 g1B Bh7 g2 Ng3 Bf2 Re1 g1R Re3 Rg2 Qg1 h1R Bd2 Qc6 d7 Rb6 d8B Bb7 d6 Qe4 d7 Nc6 Kg6 Qh4 f6 Qf4 f7 Nd4 Bc1 Rh5 Bd5 Rf5 Bh4+ Bc8 d8N Bb7 Bb3 Bd5 Bd2 Bg5 Nb7+ Ke7 Kg7 Bc4 Nd6 Rd8 Nde4 Rd5 Kg8 Bf6 Bc1 Be1 Bd2 Re2 Bc1 Rd2 Ba3+ Kd7 Bf8 Rc5 Bg7 Ke7 Na3 Bg5 Rb1 a1B Ba2 Bf2 Rd1 Bf6 Nb1 Rb2 Rd2 Be1 Rg2 Bd2 Nh1 Rc2 Rg6 Bc1 Nhg3 Rd2
q3B1r1/R1b3P1/3nNBK1/Pn3N2/b4bQR/nk1pb2Q/3Pp3/2Bn1B1N w - - 0 1 legal: proof: e4 a5 c4 f5 h4 g5 hxg5 b5 b4 fxe4 bxa5 b4 Rh4 Ra7 Rh2 Rb7 Rh1 Rb5 cxb5 Bb7 Nh3 Ba6 Ng1 Bc8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kf5 h5 a4 c5 g4 e5 f4 h4 a6 h3 a7 b3 a8B+ Nc6 b6 h2 g6 c4 a5 e3 b7 c3 b8Q e4 g5 c2 g7 b2 g6 e2 Ra2 Kc4 Nh3 e3 Ra3 Bd6 Nc3 b1N Na4 Bc7 Nc5 d5+ Ne6 d4 Qb6 d3 Rb3 e1B Nf2 Bd7 Qg4 e2 Qe3 Nf6 g8N Na7 g7 Na3 Ne7 Ba4 Qeh3 N7b5 Bc6 Rg8 Kg6 Qa8 f5+ Ne4 f6 Bf4 f7 Ned6 Rc3+ Kb4 Rc4+ Kb3 f8B Be3 Nf5 Bf4 Nd1 Bf2 Be8 Bb6 Rc6 Bc7 Ra6 Be3 Ra7 Bf4 Bb2 c1B Bf6 Bb2 Nf2 Bd4 B8e7 Bde3 Bb2 Qf3 Bc1 Qb7 Bf6 Qa8 Rg1 h1N Rg2 Ng3 Nh1 Nge4 Rh2 Nec3 Qh6 Qb7 Rh4 Qa8 Qhh5 Nd1 Qh3 Be5 Q5g4 B5f4
1R5r/p1QN1n1b/P1p1Rnqr/1RB1PNQ1/1R2KB2/1BP5/3r4/nn2k2r w - - 1 2 legal: proof: f4 e5 fxe5 b5 g4 h5 gxh5 b4 Bg2 b3 Bh3 Bb4 Bf1 Bc3 dxc3 bxc2 Kf2 Ke7 Ke3 Ke6 h4 Kf5 b4 Kg4 a4 Kg3 h6 g5 a5 d5 b5 f5 h7 g4 b6 c6 h5 Qd6 b7 Qb4 e6 Nd7 b8Q+ Ne5 a6 Qb2 h6 Qb5 e7 Bd7 e8R Nf6 Nd2 Qb1 Re6 f4+ Kd4 Kf2 e4 g3 Rh5 f3 Ne2 g2 Ng3 g1N Qc7 Nf7 Nf5 Rad8 Kd3 d4 Nb3 Rc8 Bf4 c1N+ Kc4 d3 Kd4 d2 Ra4 Rcg8 Rb4 Rg6 Nc5 Bc8 Qc2 Ke1 Nd7 f2 Bc4 f1R Bb3 d1R+ Ke3 Rd5 Qg2 Nf3 Qg1 Rd1 Qg5 Nd2 Kd4 Rh1 Ke3 Re8 h8B Qc2 h7 Rh6 Bg7 Rh8 Bf8 Nb1 Bc5 Rd2 Kf3 Rg8 h8R Re8 Bd5 Nb3 Ke3 Na1 Bb3 Re7 Rd8 Re8 Kf3 Reh8 Ke3 Bb7 Rb8 Bc8 e5 Qd1 Rh4 Qh5 R4b5 Qg6 Nb6 Bd7 Kf3 Be8 Nd7 Nd6 Rg4 Bf7 Ke3 Bg8 Rh4 Nf7 Kf3 Ne8 Ke4 Bh7 Rh2 Bg8 Bd5 Ra2 Rhb2 Bh7 R2b4 Rd2 Bb3 Nf6+
1n5k/1P2RqRp/1rb2KPb/2N2bNP/1B4Q1/p2R4/BNn1b2n/Qn2N3 w - - 0 1 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 cxd5 Ra7 f4 gxf4 d4 Bh6 d6 Kf8 e5 Kg7 d5 Ra6 d7 Rd6 exd6 Kf6 Ne2 Bg7 Ng1 Bf8 Kf2 Kg7 Kf3 e5 Kg4 c5 Kf5 c4 h4 a4 b4 f3 g4 c3 g5 c2 b6 f2 b7 f6 b5 a3 b6 e4 h5 e3 Nd2 e2 Ngf3 e1N Nc4 Ng2 Bd2 c1N Ne1 Na2 Rg1 Qe7 Bb4 Nc1 Qg4 Qe8 Nb2 Nb3 Bc4 Nd2 Ba2 f1B Rc1 Be2 Rc7 Qf7 g6 Nc6 b8N Nb1 Na6 Nb8 Nc5 Bb5 Rf1 Bc6 b7 Ne3+ Ke4 f5+ Ke5 f4 d8Q f3 d7 f2 d6 Nh6 Qf6+ Kg8 d8N Bf5 d7 Nc2 Nde6 Bg7 Rg1 f1B Ng5 Be2 d8R+ Bf8 Rd3 Bg7 Qe4 Bf8 Re7 Bg7 Rf1 Ng4+ Kd6 Nh2 Ke5 Bh6 Qg4 Na6 Rff3 Nb8 Rdd7 Bcb5 Rfd3 Bc6 Qd6 Kg7 Qdd4 Re8 Rc7 Kh8 Rd7 Qc4 Kf6 Qd5 Rg7 Re3 Rde7 Qd7 Rd1 Rb3 Rd3 Qd5 Nd1 Qf3 Qa1 Qd5 Nb2 Qd7 Bc3 Rb6 Ba5 Qd5 Bb4 Qf7+
b1Q1n1k1/1RBP4/2rN4/KNpNn2p/5Rqr/1r1P1BQ1/2P1R1R1/1nn3r1 w - - 0 1 legal: proof: g4 b5 e4 g5 h4 f5 a4 d5 exd5 Bh6 axb5 fxg4 Qf3 g3 Qe2 g4 Qd1 Bg5 hxg5 Be6 Ra5 Bf5 Ra1 Bc8 b4 Kf8 f4 e5 b6 h5 f5 a5 b5 c6 d3 g2 Kd2 g3 Kc3 a4 Kb4 a3 b7 e4 g6 e3 g7+ Kf7 d6 a2 d7 e2 f6 e1R b6 Rh7 Nh3 g1R Nf2 g2 Ne4 Rh8 Bf4 Ne7 g8N Rh6 Qg4 Nf5 Na3 Nd6 Be2 Ne8 Nb5 Ra3 Rh2 Rb3+ Ka5 c5 Qg3 Kf8 f7 Qh4 Be5 Rc6 Ngf6 Qg4 Ned6 Rc1 Rb1 a1N Bf3 Rce1 Bf4 Re4 Nd5 Kg7 f8R Reb4 Rf6 Kg8 Rg6+ Ng7 Rh6 Qg5 Qf2 Rb2 Ne8 Re6 Bd1 Rf1 Na7 g1N Rg2 Nf3 Rf6 Nd2 Nb5 Rg1 Bc7 Rh4 Qg3 Qg4 Rc1 Rb4 Rf4 Nb1 Bf3 Rh6 Re1 Nc6+ Ka6 Rf6 Ree2 Ne5 Ka5 Rc6 b8Q Bb7 Ned6+ Ne8 Qc8 Ba8 b7 Rb2 b8R Nb3+ Ka4 Nc1 Rb7 Rb4+ Ka5 Rb3
1R3rbK/1P2nBbp/6R1/N2Nb3/3pBnbR/2P1Q1nP/3n2QR/k1Bq4 w - - 0 1 illegal: No possible last move, all moves rejected
r5r1/2p1r3/3BRbnN/3B1Qp1/2R1KNRr/2P4P/b2qRP2/QbkBb3 w - - 0 1 illegal: No possible last move, all moves rejected
BnR1QR2/2bNB1r1/r5Q1/RP4n1/2kP4/Qn1p1rKb/Qr1P2p1/3n3N w - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 hxg4 c3 f5 exf5 d4 Qf3 d3 Qd1 Qd4 cxd4 Be6 Be2 Bd7 Bf1 Bc8 b4 Kf7 h4 c5 f4 e5 Kf2 a5 b6 g5 f6 Ke6 b7 Kd5 b5 e4 f5 c4 h5 e3+ Kg2 a4 h6 a3 h7 e2 f7 e1N+ Kf2 a2 f6 c3 Qa4 c2 Be2 Ra6 Kg3 Nf3 Ba3 c1R Be7 Rc2 Na3 Nh6 Nh3 Rb2 Nc4 Be6 Rac1 a1N Nf2 Nb3 Qa2 Bc8 Ne5 Nf5+ Kg2 g3 Nd7 Rg8 h8Q g4 Qg7 Ng5 Qg6 Rg7 Ra1 Kc4 Bf3 Ra3 Rh8 Ra6 Nh1 Ne3+ Kg1 g2 Kh2 Nd1 Kg3 g1R+ Bg2 Nc6 b8Q Rf1 Qe5 Nb8 Ba8 Rf5 Qd6 Rf4 Qda3 Bb7 Rg8 Bg2 Rh8 Bh3 Rg8 Rh7 Rh8 Bh6 f8R Bg7 f7 Be5 Rc8+ Bc7 f8Q Rg7 Qfe8 Rf3+ Kh4 g3 Rg8 g2 Rf8 Rf4+ Kg3 Nc3 Re1 Nd1 Re6 Bf5 Rb6 Bg4 Rb7 Bh3 Ra7 Rb6 Ra5 Re6 Qa1 Ra6 Q1a2 Rf3+
4r2R/P2rNK1b/N1B3b1/p2N2R1/1pr1QP1b/P2n2B1/n1k2bB1/2B2Qr1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd6 b5 Qa6 bxa6 Be6 Ne2 Bd7 Ng1 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 Kg5 Kb4 f4 h5 Kg6 e5 d4 c5 g4 b5 g5 c4 f6 c3 a7 h3 f7 e4 d6 e3 d5 h4 d7 c2 d8B e2 d6 e1B d7 h2 a3+ Kb3 Nf3 h3 Nc3 b4 Nd5 Rh7 Bg2 Nc6 Ne5 Bf2 Qf1 Be7 f8N Nf6 Ne6 Ne4 Nec7 Nc3 Na6 Na2 Bb6 Bf6 d8Q Rd7 Qe7 Rb8 Rg1 h1R Kf7 h2 g6 B6h4 g7 Ra8 Ng6 Ne5+ Ke6 Nd3 g8B Rb8 Qe8 Ra8 Nge7 Rb8 Kf7 Ra8 Bb2 c1R Bh7 Rc6 Bc1 Kc2 Bhe4 Rc3 Bbe3 Rc4 Bed2 Rb8 Be1 Ra8 Bh3 Rb8 Rg5 Rg1 Bhg2 h1B Rb1 Bd4 Bg3 Bf2 Nb6 Ra8 Bc6 Rb8 Nd5 Ra8 Bh3 Be4 Bg2 Bh7 Rb3 Nc5 Re3 Nd3 Re1 Rd6 Ree5 Bcf5 Rg8 Rd7 Rh8 Be4 Rg5 Bef5 Qg8 Re8 Qg6 Bb6 Qe6 Bf2 Qe4 Bfg6+
1B2b3/NNQ2R2/2bp1b2/1r3npQ/NB1PnnQ1/6RP/1K1rb1P1/2N2kn1 w - - 0 2 illegal: No proof kernel
1B1NN1b1/2R3R1/1QQn1Q2/1rrPqp2/2B5/KBpP1bp1/1P4Bb/nk3n2 w - - 0 1 illegal: No proof kernel
3NK1k1/4nrBn/3P4/P1p1PQ2/B2bnR2/2pR1b1Q/N4rRp/1R1bNq2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 f5 Kf3 Kf7 Kf4 h5 d4 c5 g4 b5 a4 h4 e4 h3 d5 h2 g6+ Kg7 d6 b4 e6 b3 Ke5 b2 g5 f4 e7 f3 e8Q f2 a6 Ne7 a5 Qc7 a7 Bb7 Ke6 Ba6 e5 Nc8 Qb3 Rh7 Ra3 Bb5 Qd7+ Kg8 g7 Ba6 Nf3 Be7 Nc3 b1N Ne1 Qc6 Na2 Qa4 Qh3 Bb7 Rd3 c3 Bg2 f1B Bc6 Qe4 Ba4 Be2 Rf1 Nd2 Rf4 Na6 Qf5 Rb8 a8N Qh1 Nc7 Qf1 Qh3 Bf8 Kf6 Bc6 Qdf5 Bcf3 Ne6 Ne7 Nd8 Nb4 Ke6 Rb6 Kd7 Nbd5 Ke8 Ne4 Be3 Rb7 Bc1 Ng6 Bd2 Rf7 Bc1 Nde7 Be3 Rh5 Bd2 Kh7 g8R Bh6 Rh8+ Kg7 Be3 Nf8 g6 Rg5 Rh7+ Kg8 g7 Rg2 Bd2 Bg5 Rhh4 Nd7 Rhg4 Rf2 Rg2 Bh6 Rg1 Bd1 Be3 Nf8 Bd2 Neg6 Bc1 Kh7 g8R Bg4 Rff3 Be2 Rde3 Qg2 Nd3 Bh5 Rd1 Qf1 Ne1 Bg5 Red3 Be3 Bd2 Bd4 Rb1 Bd1 Bh6 Bg4 Rf4 Bgf3 Qf6 Ne7 Rg2 Bc2 Bg7+ Kg8 Qfe6 Bcd1 Qef5 Nh7
1b3Q2/3B1r2/3P1p1b/q1pNRK2/NB2rPrn/Rp4Q1/4b1NP/1Nkn2R1 w - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 g4 h5 gxh5 Nf6 cxb5 Ng8 b4 axb4 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 e5 d4+ Kb6 a4 Ka5 h6 g5 d6 b3 h7 Kb4 b6 g4 a5 f6 d7 g3 d5 g2 b7 Ne7 d6 Rg8 h8Q Nbc6 b8N Ra7 a6 Nd4 Bb5 Ng6 Qf3 Ne2 Bd2+ Nc3+ Kf5 e4 Qg3 e3 Nf3 g1B Ne1 e2 Ra3 Bh6 Ng2 e1R Bc6 Rg7 Qf8 Re4 Be1 Rb7 a7 Bd4 a8R Ba7 Na6+ Kc4 Ba4 Bb8 Rg1 Nd1 Nc5 c6 Ra7 Qa5 Bb4 Rc7 Ra8 Ba6 d8N Rcf7 Ne6 Bb5 Nc7 Kd4 Rh1 Be2 Rg1 Kc4 Nd5 Rg8 Nd7 c5 N7b6+ Kd4 Bd7 Rgg7 Qg4 Kd3 Na4 Kc2 Qg3 Kc1 Ra7 Nh8 Rc7 Rg4 Rc8 Ng6 Re8 Bc4 Re6 Be2 Re5 Nh4+
2q1B3/K2Rn3/2P4R/2kn2Rn/2brp2N/RP1Q1P1p/1r1bpBBr/4NQ2 w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Ke2 e5 Ke3 Ke7 c4 d5 g4 h5 g6 a5 b3 h4 g7 a4 c6 Kd6 c5+ Ke6 c7 a3 b6 a2 g5 Nd7 b7 Rb8 g6 Nh6 g8Q+ Ke7 c6 Kd6 g7 Ra8 b8R Ra4 Nd2 Ba6 c8B Bc4 Ndf3 Nf6 Ne1 Kc5 Qh7 Nh5 Ngf3 Ng8 Rb7 Ne7 g8R Bh6+ Rg5 Qf8 Bd7 Qc8 Be8 d4+ Kd2 d3 Kc3 e3 Rd7 e2 Bg2 d2 Qd3 Bg8 Bb2 Rd4 Q1b1 d1R Bc1 Be6 Be3 Rd2 Rh2 Bc4 Rh1 Kb6 Kb4 Rb2 Ka4 Kc5 Ka5 Bd5 Qbd1 e4 Rh2 Qd8+ Ka6 Qc8+ Ka7 Rh7 Ne5 Bc4 f3 Rh8 Bf2 Rh7 Rb1 a1N Qc1 Nc2 Ra1 Nb4 Ng6+ Nbd5 Ra3 Qd8 Nc2 Qc8 Qf1 Rf7 Ne1 h3 Nh4 Rg7 Rh1 Rg6 Rg1 Rg7 Rg6 Bd2 Rh6 Rg6 Bh1 Rg8 Rg5 Rg7 Re5 Rg2 Rg5 Rh2 Bg2 Rc2 Rhg6 Ra2 Rh6 Rb2
4N1b1/4N3/1kP3bq/rr4Q1/1B1PRprn/2K1B2n/B1RQpP1p/b3R1R1 w - - 0 1 illegal: No possible last move, all moves rejected
1BB5/BrB3k1/K1P1R3/b3p3/3PPRnn/bNQpqb2/1p1Nr3/2NnQ3 w - - 0 1 illegal: No proof kernel
R1N1Qn2/r4NQB/2pRp2n/5p2/3PP3/N1b1P1bK/B1b1Bk2/q1Bnr3 w - - 0 1 legal: proof: e4 g5 a4 d5 c4 dxc4 h4 b5 hxg5 Qd3 axb5 Qe3+ fxe3 Bb7 Qb3 Ba6 Qd1 Bc8 Kf2 h5 Kg3 f5 d4 Kf7 b4 Kg6 b6 a5 b7 a4 b5 a3 b6 c3 Kh2 c2 g4 a2 Nh3 h4 Na3 c6 Be2 Ra7 Qg1 Nd7 b8Q Ba6 b7 Bd3 Qg2 Nh6 Qe8+ Kg7 g6 Kf6 Ng5 h3 Kg3 h2 b8N Rg8 Rg1 h1N+ Kh3 Rh8 g7 Nf2+ Kh4 Rg8 Nf7 Nd1 Kh3 Rh8 g8B Kg6 Bd2 c1B g5 Bb2 Bc1 Bc3 Rh1 Bc2 Bh7+ Kg7 g6 Kf6 g7 Rg8 Rb1 a1Q Rb2 Rh8 g8B Bg7 Ra2 Nf8 Bg6 Rh7 Qg3 Bh8 Qg1 Rg7 B6h7 Rg6 Qg3 Rg5 Qc7 Rg1 Rh2 Re1 Nd7+ Ke6 Nb6 Be5 Nc8 Bg3 Rb2 Kf6 Rb8 Rh1 Ra8 Re1 Nd8 Kg5 Ba2 Ng4 Nf7+ Kh5 Bd3 Nh6 Qe5 e6 Qg7 Ba4 Rb2 Bc2 Rb7 Bh4 Rd7 Bg3 Kg2 Kh4 Be2 Bb8 Rd6 Bc7 Kf3 Kh3 Kf4 Kh2 Kg5 Kg2 Kh4+ Kf2 Kh3 Bb8 Rd8 Be5 Rd6 Bg3
BNR2b1R/Q1Q1q2N/bpP3n1/R2nbNpr/8/2PR4/rP1p3K/2B1k1r1 w - - 0 1 illegal: No possible last move
1nQ1r3/2BnbK2/PqR2R2/2b2b2/p2Nnr1Q/NP1N2pB/1N1P2p1/k3B3 w - - 0 1 illegal: No proof kernel
K2n1bn1/b4BPQ/4NkbN/3pR1p1/prP3B1/2Q2Nn1/R6P/BrNq4 w - - 0 1 illegal: No proof kernel
1rN2q2/3brPnb/2b1nB2/P1BKn2Q/1p1Q3p/R2p4/2N2B1P/1kN1R2B w - - 0 1 illegal: No proof kernel
1Bb2b2/rRNRKP1P/3n2p1/Nrq1BQn1/p5Q1/1N6/PNrp2b1/4B1k1 w - - 0 1 illegal: No proof kernel
R1N2b2/N1q1bp2/1B1bNQPr/2p1nK1k/2P2n2/2pn3P/r2R4/R1Q1RB2 w - - 0 1 illegal: No proof kernel
R4nnK/rq1kp1N1/r5R1/b2P1bB1/3PR3/2B1QnP1/1Q1pBNp1/4b1R1 w - - 0 1 illegal: No proof kernel
RbR1QrNn/2NP2Q1/2Pnq1r1/NbQ3p1/Q7/1p2P1B1/1pB4b/1r2K2k w - - 0 1 illegal: No possible last move, all moves rejected
1n6/3pPpb1/Q2P3R/P3Q2B/3q2b1/KQ1Npn2/1r1N1R1N/kb1r1QrB w - - 0 1 illegal: No proof kernel
Nb1n2B1/1P1R1NR1/2nn1B2/PrP5/2p2k2/4Rp1Q/BKQrp1q1/2Rb3r w - - 0 1 illegal: No proof kernel
5b1n/BP5N/q3nprb/Rp6/P3p1Bk/1K2Br2/1PQnR3/2NN1QBr w - - 0 1 illegal: No proof kernel
6NQ/QP1R2p1/1B1Rn3/N4PpK/p1Qbqr2/br1P1Bk1/1B2b3/rn5Q w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 b4 g4 b3 g5 h6 axb3 hxg5 b4 Nh6 b5 Ng8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 h4 c5 b4 a5 f4+ Ke4 d6 e5 d3+ Kd4 b6 c4 b7 c3 d7 c2 f6 e4 f7 e3 h5 e2 h6 e1B h7 Bg3 f5 Ke5 b5 Bh2 b6 Be7 f8Q Qc7 d8B Bb4 Nc3 Qe7 Bg2 Ba3 Nd5 Nc6 Nf6 Rb8 Qf7 Nd4 Bf3 Ne6 Ne2 Bg1 Rh6 Bd4 Bb2 c1R Kh5 a4 Rb1 Bd7 Qh1 Bc6 Rg6 Re1 Nc1 Kf4 Nb3 Kg3 Na5 Qe8 Rc1 Ne7 Ng8 Nd5 Rc5 Nc3 Rd5 Rf1 Rd7 Ra1 Rh6 Nb1 Rf6 Nf8 Rfd6 Qe4 Qc4 Ne6 Bc7 Rf8 b8Q Bb7 Qa8 Rb8 Qa7 Bd5 Qc6 Bb3 Qb5 Bd1 Qc4 Be2 Bd8 Rc8 b7 Rc6 Be7 Rb6 Bd8 Rb5 Bb6 Rb3 Nf6 Rc8 h8Q Rc7 Ng8 Rc6 Qca6 Rc1 Qc4 Rf1 Bg4 Rf4 Bf3 Qe3 Qhc1 Qe5 Qh1 Qe4
NQnb1Q2/1PQBp2Q/rR1r2B1/k4b2/1p1R3R/2bK3P/1P1N2p1/3nq1r1 w - - 0 1 illegal: No proof kernel
1nrr1B2/Rp3pKb/1Q2q3/3k4/2p2P1P/1B1n1PbN/2RB1N2/nN1QrB2 w - - 0 1 illegal: No proof kernel
1b4n1/2n1n2N/Br2Q1R1/pr3B1Q/2PBK1bP/Rp1qQ3/1NP1B1p1/1q5k w - - 0 1 illegal: No proof kernel
1Nr2Bk1/5N2/Q2pR2b/b2qn2Q/PpB2rB1/bP2K1p1/R1n1B1P1/1N5q w - - 0 1 legal: proof: e4 f5 d4 fxe4 h3 g5 Qe2 c5 dxc5 g4 Qd1 g3 Na3 b6 Nb5 Ba6 Nxa7 Bb5 Nc8 Be2 Na7 Bg4 hxg4 Qc7 Bg5 Qc8 Bc1 Qd8 Ke2 Kf7 c4 e5 a4 h5 f4 d6 b3 e3 g5 e4 g6+ Kg7 f5 b5 c6 b4 f6+ Kh6 g7 Kh7 c5 h4 f7 h3 c7 h2 c8B Nh6 c6 Nd7 c7 Ne5 Bg4 Nf5 c8Q Qg5 Qa6 Rc8 g8B+ Kg7 Ra2 Rh4 Nf3 Nd4+ Ke1 e2 Nc6 Kh8 Nd2 Bh6 f8N Qh5 Rg1 h1Q Nb8 Qf7 Nb1 Qd5 Nfd7 Kg7 B4e6 Rf4 Kd2 e1B+ Ke3 Bc3 Be2 Bb2 Re1 Ba3 B6g4 Kh8 Nf8 Kg7 Ne6+ Kh8 Nd8 Kg7 B8e6 Kh7 Nf7 Kg8 Bf1 Nc2+ Ke2 Qc6 Bc4 e3 Bb2 Qd5 Ba1 Nc6 Bg7 Ne5 Bf8 Bg5 Qd3 Bd8 Qf5 Ba5 Qh5 Qe4 Kd1 e2+ Kd2 Qa8 Rc1 e1B+ Ke2 Bc3 Re1 Ba1 Kd2 Bd4 Re3 Qd5 Bfe2 Nc6 Re6 Bg7+ Bed3 Bh6 Ke2 Ne1 Ke3 Ne5 Bde2 Nc2+
1q6/N7/b1npRbRp/B2n2B1/r2B3K/3BNpR1/PPQP1Qq1/2q3rk w - - 0 1 illegal: No proof kernel forced: bxDB
r4k2/q2q4/QP1pP2b/R2KPNR1/pp6/nBB4R/2b1Qr2/Nr1N1N1n w - - 0 1 illegal: No proof kernel
1q2k2N/Bn4nB/PB3rp1/3Rp3/1p1B1QPQ/NQb3qP/2b1rr2/2K3R1 w - - 0 1 legal: proof: c4 a5 b4 axb4 e4 h5 Qxh5 d5 cxd5 Bd7 Qh7 f5 exf5 Bc8 Kd1 b5 g4 e5 a4 c5 f4 b3 d4 c4 h3 c3 a5 b2 f6 b4 d6 Bd7 a6 Ne7 d5 Bf5 d7+ Kf7 d6 Nd5 Nf3 Be6 f5 Qe8 d8Q Qb5 d7 Nf4 Rg1 Ra7 Ra5 Bc5 Be3 Nc6 Nh4 Qb8 Bd4 Rf8 Na3 Nh5 Bd3 b1R+ Kc2 Re1 Ng6 Re3 Kc1 c2 Qh6 Ba2 Qf4 Bb1 Qg3 Bb6 Rd5 Na5 Qf3 Nb7 Nh8+ Kg8 Qe7 Re2 d8B Bc5 Bb6 g6 f7+ Kg7 Qh4 Ra8 Bc4 Ra7 Bb2 Bd4 Qb3 Bc3 Ba1 Re8 Bb2 Re6 f8B+ Kg8 f6 Ng7 Be7 Rc6 Bed8 Kf8 f7 Rf6 Bdc7 Ke7 Bd6+ Kd7 f8Q Rff2 Qff6 Ke8 Qf4 Rh2 Qh7 Re1+ Rd1 Nc5 Bg8 Rf7 Ba7 Nb7 Bf8 Bd4 Qh4 Rf6 Bfc5 Re4 Bc3 Rd2 Kb2 c1Q+ Ka1 Rg2 Bh7 Qe3 Bcb6 Bc2 Kb2 Qg3 Kc1 Ree2 Rd2 Rgf2 Ba1 Bc3 Rd5 Be1 Bad4 Bc3
1rq5/2R1N2p/6P1/n1qR1R1p/RbB4B/P1PK1Qbb/1NrQ1pn1/B6k w - - 0 1 illegal: No proof kernel
5b1R/2NbqN1p/n2PRPk1/1rB5/1Q1rPq2/Q2B3p/BN2p2K/2n1B1n1 w - - 0 1 illegal: No proof kernel
1qq5/2Q2P1P/2n1Q1r1/PrR3np/R2p3k/N1p1BB2/q1BN1b2/2RK1bB1 w - - 0 1 illegal: No proof kernel
4Qr2/2kN1pK1/1b3N2/5B1q/PpP1q1bp/P1rBB2Q/1RR3n1/1B1R2nn w - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 a5 d4 cxd4 b3 e5 fxe5 a4 bxa4 Qf6 Nf3 Qb6 Ng1 Qd8 Kd2 b5 Kd3 d5 e4 Kd7 g4 h5 c4 h4 e6+ Kc7 g6 b4 e7 Qe8 a3 Bb7 e5 Nh6 g7 Ba6 g8B Kc8 e6 Qc6 e8Q+ Kb7 e7 Qb6 g5 Qc6 g6 Ng4 g7 Ne3 Ra2 Nd7 Nd2 Kc7 Qf3 Bc8 Rb2 Ng2 Bh7 Rg8 Bf5 Rb8 Qh3 Ne5+ Ke2 Nf3 Kd3 Bd7 Ne4 Qe6 Nf6 Qe5 Be3 Qe4+ Ke2 d3+ Kf2 d2 Bd3 d1N+ Ke2 Ng5 Nf3 d4 Ne5 Nf2 Rd1 Nh1 Bb1 Be6 Ned7 d3+ Kd2 Rd8 Rc2 Rh8 g8B Bh6 Bgh7 Rf8 Rb2 Nf3+ Kc1 Bf4 Bg4 Qe5 Ne4 d2+ Kc2 Rc8 Kd3 Qd5+ Bd4 Kb7 Rg1 Rc5 Qc8+ Ka7 e8R Qb7 Re7 Be5 Qe8 Bc7 Rc1 Ng1 Rcc2 Bb6 Be2 Bg4 Bf5 Bh5 Re5 Rc6 Rd5 Rd6 Be3 Qa8 Rd4 Kb7 Rd5 Kc7 Bf1 Ba5 Kd4 d1Q+ Ke5 Bb6 Rd3 Qg4 Rd1 Rd3 Kf6 Rc3 Bd3 Qe2 Kg7 Qb7 Nef6 Qe4 Bg6 Q2f3 Bh7 Qff5 Bg6 Bg4 Bh7 Qh5 Bg6 Qe6 Bgf5 Qe4
1N1Qb3/1BK1Pn1p/4N1Pn/RqrpB1rQ/3Q4/1B3R1p/B2rq2P/5b1k w - - 0 1 illegal: No proof kernel
Q1nk4/4p1P1/2rPRb1q/1bBP3R/4N1pq/2pK2QB/br1RNB2/B6n w - - 0 1 illegal: No proof kernel
qKb2n1k/3PRPp1/QB1PNq2/2R3QB/1nR2Q2/pNr3b1/Q1r2p2/3n4 w - - 0 1 illegal: No proof kernel
1Q6/n2p1N1k/4N1br/2P2P2/3rrPqn/QNRq3N/p2BR1p1/1Bb3KR w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 h4 g5 c4 Kg7 f4 e5 Kf2 a5 h6+ Kh7 b6 e4 b5 g4 h5 a4 b7 d3 b6 d2 Qb3 d1Q Nd2 a3 Nh3 e3+ Kg1 a2 Qa3 e2 Nb3 e1R Bd2 g3 Rc1 g2 Rc3 Nc6 b8R Na7 b7 Qh4 c5 Re4 Rf3 Qc2 Rc3 Qg4 Bd3 Rd4 Be4 Ne7 Bd3 Ng6 Be4 Kg8 h7+ Kg7 Bd3 Nh4 Be4 Be7 Bd3 Re8 h8N Bf6 h6+ Kh7 Nf7 Ree4 Nd8 Bh8 Ne6 Bg7 Be2 Qd3 Bd1 Nb5 Bc2 Ra6 Bb1 Na7 Ra8 Bh8 b8Q Bb7 Qe5 Bf6 Re8 Bd5 Qb8 Rd6 Nd8 Bf7 Re5 Kh8 h7 Bg6 Re6 Kg7 h8N Kh7 Nhf7 Ra4 Rc2 Bb2 Rc3 Bc1 Re7 Red4 Re1 Re4 Ne6 Rad4 Re2 Bh5 Ned8 Rh6 Ne6 Bg6
1nK1B1Q1/2Npq3/rPp2R2/4RQ2/qnbpb3/rR2P1BB/2NPr1R1/3k4 w - - 0 1 illegal: No proof kernel
n3B2k/Kb1p3P/NRrQbNp1/3P4/2P2pQB/q3qn1n/4R2B/R3r1B1 w - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 b5 a3 e5 b3 c4 bxc4 Bb4 c5 exf4 Kf2 Ba5 Ke1 b4 Bb2 b3 Bc1 Bb4 axb4 Qa5 Nh3 Qb6 Ng1 Qd8 Kf2 Kf8 e4 f5 h4 a5 d4 g6 h6 b2 c6 a4 h7 Kg7 c7 a3 e5 a2 h5 f3 Ke3 f2 b5 Qe7 h6+ Kf8 e6 Ra3+ Nc3 b1N b6 Qe8 e7+ Kf7 b7 Nc6 b8B Qd8 e8R Nge7 Nf3 Rf8 h8B Kg8 h7+ Kf7 Nd2 Na7 Qg4 Bb7 c8Q Ra5 Nb3 Qb6 Qc5 Bc6 Bf6 Nac8 Bh4 Kg7 Qd6 Re5+ Ne4 Kh8 Bc4 f1B Nc5 Bh3 Na6 Nd2 Bf7 Bb7 c4 Nf3 Bd2 Rg8 Rhb1 Nd5+ Kd3 Re6 Nf6 Re1 Re2 Nf4+ Ke3 Qa7 Be8 Nb6 d5 Na8+ Rb6 Rf8 Bc3 Rg8 Bd4 Rf8 Bf7 Rc8 Be8 Rc6 Bc7 Bg2 Bc5 Nh3 Kd3 Bf1 Bg1 Bg2 Kc3 Bf1 Kb4 f4 Ka5 Bg2 Bg3 Bf1 B3h2 Bg2 Bd8 Bf1 Rb3 Qe3 Rb6 Bg2 Ne4 Bf1 Bh4 Bg2 Nf6 Bf1 Rd1 a1Q+ Kb5 Qa2 Ra1 Qaa3 Qg5 Nd2 Nb4 Nf2 Qf5 Bh3 Qg5 Be6 Qg4 Qac3 Ka5 Nh3 Kb5 Rc8 Ka5 Nf3 Kb5 Bc6+ Ka6 Bb7+ Ka7 Rc6 Na6 Qa3
2BK4/2PbQ2q/1pQ3b1/R1N1Np2/1P2P2b/np1R2Q1/1r3rn1/k1NB2qN w - - 0 1 illegal: No extended proof kernel
1Q2N3/b1P5/Qp2B2K/3pr2N/pR2qQ1Q/1n1Rbq2/1P1N1P1n/k3B1rq w - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 f5 exf5 b6 gxh5 Nf6 a5 Ng8 a6 Bb7 axb7 Rh6 Nd2 Rh7 Nb1 Rh8 Kd2 Kf7 c4 a5 h4 e5 c5 g5 h6 a4 c6 d3 Ke3 g4 h7 d2 h5 e4 Kf4 e3 f6 Ke6 Kg5 Kd5 h6 g3 Rh3 g2 Bd3 e2 Bf5 Kc4 Rb3 e1B Be6+ d5 Raa3 Bd6 Ne2 g1Q+ Ng3 Nd7 b8Q Qe8 f7 Nc5 f8Q Qh1 Nh5 Nf6 Rd3 Qf3 Qe2 d1Q Bd2 Ng4 Rab3 Nh2 Bc3 Bd2+ Qf4+ Qe4 Rb5 Be3 Be1 Qf7 Qf1 Rf8 h8Q Re8 h7 Nb3 Kh6 Qf3 Qf6 Qh1 h8N Rg8 Qh4 Rg1 Qe2 Ra7 Qf1 Re7 Qe2 Qf5 Nf7 Qg4 Qf1 Qgf3 Rb4+ Kc5 Bh3 Re5 Nd2 Bc7 Be6 Bd6 Qb7 Bb8 c7 Ba7 Nd6 Qh3 Ne8 Q3f3 Rc4+ Kb5 Qd8 Ka5 Qdb8 Kb5 Qh3 Ka5 Qh4 Kb5 Rc6 Kb4 Qa6 Na1 Rdc3 Rg8 Nb1 Rg1 R3c4+ Kb3 Rb4+ Ka2 Nd2 Nb3 Rc3 Ka1 Rd3 Bd4 Qbc8 Bc5 Qb8 Be3
1Qb1r3/b1P1B3/P1P5/1pnQ3q/Br2nN1p/kqR2p2/nNR3Q1/K2Q3N w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kd2 Ke7 e4 d5 c4 f5 Kc2 h5 Kb2 f4 g4 d4 a4 b6 e6 h4 c6 Kd6 a5 Kc5 c7 b3 e5 Kb4 a6 f3 g6 d3 c5 d2 e7 Nc6 e8Q Bd7 g7 Rc8 e6 Na5 c6 Bd6 g5 Rh7 g6 Nb7 e7 Bh3 Rh2 Bg4 Ra3 Bc5 Ne2 Rb8 Nbc3 Qd7 Ne4 Nh6 g8Q Qf5 g7 Nf7 Ka1 Rh5 N4g3 Nfd6 Nh1 Ne4 Qd5 Rh8 g8Q Qh5 Nf4 Bc8 Qg2 Be3 Be2 Nbc5 Bb5 Rb7 Qed8 Re8 Ba4 Bg1 Bb2 Rb8 Bf6 b2+ Ka2 b1N Ka1 Nbc3 Bg5 Na2 Rc3 Rg8 e8N b5 Be7 Rg4 Nd6 Ra8 Qc1 d1Q Nc4 Qb3 Nb2 Ka3 Qcf1 Bb7 Q8g8 Re8 Qfd1 Be3 Qg3 Bc8 Rhc2 Bg1 Qg2 Nf2 Nh3 Rb4 Nf4 Nfe4 Qd8 Bd7 Qb8 Bc8 Qf7 Ne6 Qf5 Ba7 Qfd5 N6c5
2Q1rn2/k1Pp3N/rn3b1r/1p2R1BB/4R1QP/1B4Qb/1Qpq2PK/N2q4 w - - 0 1 illegal: No proof kernel
Q1B4n/1NpN1rbQ/3PR3/3R1Q1n/R1qP1Rq1/p6b/Ppr4K/1k2Bn2 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 Qd7 c4 Qb5 cxd5 Qxb2 h4 Kf7 d4 Kf6 f4 g5 d6 b5 h6 e5 h5 a5 h7 g4 h6 a4 Bd2 a3 Kf2 g3+ Kg2 b4 Nf3 b3 Rh5 e4 Ba6 e3 Qf1 e2 Nc3 e1Q Na4 Qe4 Re1 Qbc2 Nc5 b2 Nb7 Bg7 Kg1 g2 Kh2 g1N Ne5 Nc6 Nd7+ Kf7 f6 Ke6 f7 Nce7 f8R Qc4 f5+ Kd5 Re2 Nf6 Be1 Qg4 Re6 Ng6 Rd8 Rf8 h8Q Rf7 Qh7 Nh8 Rg5 Nh5 f6+ Kc6 Rd5 Nf3+ Kh1 Nd2 Qff5 Ra7 Kh2 Ra8 Rf8 Rb8 Nbc5 Rb4 Nb7 Rb3 Rd8 Rc3 Rg8 Re7 f7 Rc2 f8R Rf7 Qd3 Re7 Rf4 Rf7 Qdf5 Ng6 Nbc5 Nh8 Bb7+ Kb5 Ba6+ Kb4 Nb7 Bf8 Rg5 Kc3 Ra5 Bg7 Ra4 Qb5 Qg8 Ng6 h7 Qc5 h8Q Qc4 Qhh7 Nh8 Qd5 Rc1 Rgf5 Kc2 Qa5 Kb1 Rd5+ Rc2 Qb5 Qc3 Qbd3 Qb3 Qdf5 Qc4 Na5 Bb7 Qa8 Bc6 Bc8 Bb7 Rde5 Bg2 Rd5 Bh3 Nb7 Nf1+
3kn3/1PRb2Rn/N1P2r2/QQ1N1q1p/3NK2p/Nq3PQp/1Br3n1/3B2b1 w - - 0 1 illegal: Other
B2B2RQ/1P2P3/1q1p3Q/1k2pqrr/6Rp/1Pn1RN1n/1BbN3K/Br2b3 w - - 0 1 illegal: No proof kernel
r1B1k2K/1P1p2b1/1pn5/BR1N1Ppr/b1PR2N1/1BQR1n1Q/6q1/2bR1q2 w - - 0 1 illegal: No proof kernel
Q3Rq1R/PBk2nK1/nb2r2N/q1N4p/bP2P3/2Q1QB2/1p1Q1p1b/r5B1 w - - 0 1 illegal: No proof kernel
3b1QR1/P1p1n3/1P1rB1P1/2NRq2p/2NKBr1n/1qB1Qb1N/4p3/4bkN1 w - - 0 1 illegal: No proof kernel
2R5/p1NQ1NB1/1BKn1b2/2QR1p1P/4Qr2/P3pRqq/1r3Pk1/nRb1n3 w - - 0 1 legal: proof: e4 c5 g4 h5 b4 d5 bxc5 f6 exd5 Nh6 g5 Be6 g6 Kd7 Be2 Bf7 gxf7 Ng8 Bg4+ hxg4 Ke2 e5 Kd3 g5 Ke4 b5 h4 b4 c4 f5+ Kd3 g3 d6 Ke6 d7 e4+ Kd4 b3 c6 g4 c7 g2 c8R b2 c5 e3 c6 g3 c7 Qg5 d8R Ba3 f8Q Nd7 Qg4 Ne7 Rh3 Nc5 Nc3 b1Q Bb2 Qf1 Nb5 Rb8 Nf3 g1B Rb1 g2 Rd5 Bh2 Ne5 g1N Rf3 Qh3 Qe4 Qgg3 Nf7+ Kf6 Bc3 Bc1 a3 Nb3+ Kc4+ Kg6 d4 Na1 Kc5 Kh5 Qd8 Rg8 Qd7 Rg4 Bb2 Rf4 Kd6 Kg4 h5 Ng8 Kc6 Kh4 Re8 Kg4 c8Q Nf6 Nc7 Rb5 Rf8 Ne8 Rh8 Nd6 Qf8 Nb7 Qc5 Nd6 Rc8 Kh4 Re5 Rb8 d5 Rb5 Bd4 Rb2 Bc3 Qhg4 Bd4 Kh3 Bc3 Kg2 Bd4 Nb5 d6 Q3h3 Rd5 Bg3 Qc3 Bh4 Qc5 Qgg3 Bg7 Bf6 Qde6 Ra2 d7 Nd6 d8B Rc2 Qd7 Rb2 Na6 Ne2 Bb6 Nd4+ Kc7 Ndc2 Kc6 Ne1 Nc7 Bd4 Ng5 Bc3 Nf7 Bf6
r4q1N/4nbn1/B6r/pRN2p2/1pQ2nKB/kPQ2P2/1nP1Q1Q1/b3R2N w - - 0 1 legal: proof: d4 e5 dxe5 c5 g4 h5 gxh5 c4 a4 c3 Nxc3 b5 Nb1 Qb6 a5 Qxa5+ Bd2 Qc7 Bc1 Qd8 h4 Ke7 e4 d5 Ke2 a5 Kf3 g5 b3 b4 e6 Kd6 e7 Kc5 e8Q d4 e5 d3 h6 d2 h5 Ra6 e6 Qd7 h7 Ne7 h6 Bg7 Nh3 Ra8 Nc3 Qd8 Qb5+ Kd4 Kg4 Nd7 f3 Qf8 Nf2 Nc5 Qde2 d1N Rh5 Nb2 Nh1 Bb7 Na4 Bd5 Qa6 Be5 Qg2 f6 Bf4 Bc4 Bg3 Bd5 Bh4 Bc4 Nb6 Kc3 Re1 Bd4 Nd7 Bd5 Kg3 g4 Kf4 g3 Kg4 Bc4 Qc8 Bd5 Ba6 Be5 Qf1 g2 Qc4+ Kd2 Rg5 g1N Rf5 Nh3 Rh5 Ng6 e7 Nhf4 e8Q Nce6 Nc5 Ne7 Qeb5 Ng7 Rf5 Rg8 h8N Bf7 h7 Bd4 Qe2+ Kc3 Qg2 Be5 Qbe2 Bd4 Ng6 Be5 h8Q Bd4 Qh7 Rh8 Qg8 Rh6 Rh5 Nbd3 Rd5 Kb2 Nh8 Ka3 Qc7 Bb2 Qce5 Ba1 Qc3 Nb2 Rh5 Bg6 Qgc4 Bf7 Ne6 Qg8 Rb5 Qf8 Nc5 f5+
k1b2RNb/3R3B/2Rr1p1N/2QQ3K/N1Ppb1qn/1P2P3/p1rN2nb/6B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kf3 g5 Kg4 d5+ e6 a4 c4 d3 h4 d2 h6 a3 b3 a2 b6 Bc5 b7 Nd7 b8R Ba7 h5 Rh7 e7 Bd4 Nc3 Bh8 Na4 Ra6 Nf3 Rd6 Rb7 Nc5+ Rd7 Rg7 h7 Nd3 h6 Ne1 Kh5 g4 Bb2 g3 Bd4 g2 Bg1 Qb6 e3 Qd4 Bd3 Qe4 Rh4 Qf4 Rg4 d4 Rg6 Qe4 Qe2 d1B Nd2 Qf4 Qf3 Bc2 Qd5 Qg3 Bf5 Be4 Re6 Rg4 Rf6 Rf4 Qc5 Rf2 Rg6 Bf6 h8Q Re2 Qh7 Bh8 Qg7 Qf4 h7 Nh6 Qge5 Rf2 Qed5 Qf3+ Bg4 Nf5 Rb1 Nh4 Rf6 Nc2 Rf1 Ne1 Re6 Qf4 Bf5 Qg3 Nb1 Rc2 Nd2 Be5 h8N Qg4+ Kh6 Bf6 Bh7 Be5 Ng6 Bh8 Ne5 Qg3 Kh5 Qg8 Bh2 g1B Ng4 Neg2 Nh6 Qg7 Bg3 Qg8 Bf2 Bh2 Bg1 Qg3 Rc7 Qh3 Rc6 Kd7 e8N Kd8 Nf6 Qg3 Nfg8 f6 Re8+ Kd7 Rf8 Qg7 Rf5 Qg3 Rb6 Qh3 Qa3 Kc7 Rc6+ Kb8 Qac5 Ka8 Re5 Bg3 Re7 Bh2 Rd7 Qg4+
1B4R1/Nr2RRbn/k1NP2rN/2KpP1p1/4b3/Pqp2n1B/4RQb1/1b4Q1 w - - 0 1 illegal: No proof kernel
1n1qN1Q1/1QRB3n/1p1P3B/1n1QP2r/4PK1Q/kp2b2p/4b2N/1r1N2Rn w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kf3 f5 e4 h5 a4 c5 g4 b3 d4 f4 a5 h4 a6 c4 g6 h3 g7 b6 g5 c3 g6 c2 a7 Qe8 d6 Kc6 d5+ Kc5 d7 Kb4 d8Q Qe6 d6 Rh5 Qh4 Qd7 Nc3 Nf6 g8N Qd8 g7 Nh7 Bb5 Ba6 Bd7 Bd3 Kg4 f3 Nf6 f2 g8Q f1N Nf3 Ng3 Kf4 Be2 Rg1 Nh1 Ne8 Bg7 Bd2 c1N Nh2 Na2 Rc1 Ka3 Be3 Bf8 Qdd5 Bg7 Nd1 Nc3 Rc2 Nb5 Rc7 Bf6 Qhg4 Bh4 Q4g5 Bf2 Qh4 Na6 Bd2 Rc8 a8Q Bd4 Qab7 Nb8 Rc1 Rc2 Be3 Rb2 Rc5 Rb1 Rc7 Bc4 Kf3 Bf1 Bh6 Be2+ Kf4 Be3+
K1R1Bq1N/6N1/P1r2Rp1/1N6/r1nb3P/p2kB1n1/1QR1rPbp/2QNr3 w - - 0 1 illegal: No proof kernel
1b6/3PP1n1/1p3pr1/p4Bk1/QKB5/rPRbnRBQ/1N1b2Qq/4N1bB w - - 0 1 legal: proof: f4 d5 a4 g5 c4 dxc4 h4 e5 fxe5 b6 hxg5 Bc5 a5 Qd5 a6 Qb7 axb7 Bf8 g4 Ke7 d4 c5 Kd2 h5 Kc3 h4 e4 f6 e6 h3 g6 h2 d5 a6 e5 Nc6 b8Q Nd4 g5 Nc2 g7 Nd4 d6+ Kd8 d7 Ke7 g6 Bb7 Nd2 Nh6 g8B Ng4 g7 Nf5 Ngf3 Rh3 Qa4 Nge3 Ne1 Be4 Bg2 Bd3 Rf1 h1Q Ra3 Qh2 Bh1 Rf3 Bh7 Rg3 g8Q Ng7 Rf3 Rg6 Qb7 Rc8 Rb3 Rc6 Qh8 Rd6 Rb5 Rd4 b3 Re4 Kb2 c3+ Ka3 c4 Kb4 c2 Rc5 c3+ Nc4 Rh4 Bd2 c1B Qd5 Rh5 Nb2 c2 Bg8 Rf5 Qh3 Rfg5 Bc3 Bd2 Rc6 c1B Bh7 Rh6 Bf5 Rhg6 Rc4 Rg4 Qa8 Rd4 Qe4 Rd5 Qeg4 Ra5 Qgg2 Nd1 Rc8 Be3 Bd2 Bg1 Bf4 Ne3 Rc3 Bd2 Bg3 Ne8 Qc6 Ra3 Qb5 Bh6 Qa4 Kf8 e7+ Kg7 e6 Bf4 Qg4 Bb8 Qh4 Kg8 Qhh3 Ng7 e8B Kf8 e7+ Kg8 Qg4 Kh7 Bf7 Kh6 Q4h3+ Kg5 Bc4 a5+
1n6/bPRpQ1R1/3N1K1b/r5N1/p1R1b2Q/3P2Pp/N2k1bnB/r3NqB1 w - - 0 1 illegal: No proof kernel
2Q5/pp2Q2r/R2nRB1N/1r1Qb1P1/1P2NR2/Pb2n1p1/k1bqBb1Q/5K2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 Ke2 g4 Ke1 Qd6 Qb3 Qh6 Qd1 Qg5 hxg5 Nf6 Ke2 Nh5 Kd3 Nf4+ Ke3 Nxg2+ Kd3 Kf7 Ke2 Ke8 f4 Kd7 d4 Kd6 b4 h5 f6 c5 f5 e5 f7 h4 a3 c4 f6 g3 Qe1 c3 Bb2 h3 Nd2 h2 Nh3 e4 Qf2 c2 Re1 Bg7 f8R c1Q f7 e3 Ba1 Na6 Ne4+ Kc7 d6+ Kc6 d7 Kd5 d8Q+ Kc4 d5 Kb3 d6 Nc5 d7 Ka2 Qc7 Rh7 d8Q Be5 Qce7 Be6 Qd4 Bb3 Qd5 Rc8 Bd4 Bb8 Bf6 Be5 Qg1 Rc6 Nhf2 Rb6 Ng4 Rb5 Nh6 Qc3 Rc8 Qd4 f8Q Qc3 Rc6 Qd2+ Kf3 e2 Qc8 Ne3 Ra6 Ne6 Qf2 Ng7 Rg1 h1B+ Rg2 Nc4 Qg1 Nd6 Qh2 Qb2 Ke3 Ngf5+ Kd3 Qc1 Rf2 Ne3 Rf4 Qb2 Rc1 e1B Rcc6 Bf2 Be2 Nf7 Re6 Nd6 Bg4 Bf3 Bh5 Bd1 Be2 Bc2+ Kd2 Bg1 Ke1 Qd4 Bd1 Bf2+ Ke2 Ng2 Kf1 Qd2 Be2 Ne3#
3NQqN1/3B2NQ/R1qb4/p5r1/k1b3np/BN4nP/1qp2P1P/KbR2Q2 w - - 0 1 illegal: No possible last move, all moves rejected
1n5R/2BPp1K1/p3PpQr/Rq1r1B1N/3P1qRb/6B1/qN1r3Q/1bkB4 w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bb7 g5 Bc8 h5 Nc6 Ra6 Ne5 Ra1 Ng6 hxg6 Bb7 Bg2 Ba6 Bf1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 b6 h5 g7 c5 b7 h4 b8B a6 d6 h3 g6 c4 d7 f6 Kf5 f3 e4 h2 e5 f2 e6 c3 Qh5 Kb3 Nh3 Kc2 b4 Qa5+ b5 Qa3 b6 Rh6 b7 Qa2 Bc7 Rb8 Be2 f1Q+ B1f4 Kb2 Bd1 c2 Qg5 c1Q Nd2 Qb5+ Bfe5 Rh5 Nf4 Rh6 Rg1 h1R Rg4 R1h2 Nh5 Rf2+ Qf4 Re2 Qh2 Rf2+ Bf3 Kc2 Nc4 Rd2 Nb2 Qcf1 Rg5 Qf2 Rag1 Qe3 Bd1+ Kc1 Kg4 Qf2 Bg3 Qe3 Kh4 Qf4+ Rg4 Rh8 Re1 Nh6 g8Q Nf7 g7 Nd8 Re5 Rh6 Qh7 Nc6 g8B Rg6 Qf7 Bh6 Bh7 Rg5 Bf5 Ra8 b8R Bb7 Rf8 Nb8 Qh7 Be4 Rh8 Bc2 Qg6 Bb1 Bfc2 Rf5 Rc5 Rd5 Bf5+ Qbc4 Ra5 Qb5 Ng7 Bg5+ Kh5 Qe4 Rd8 Qe5 Rh8 Bh4 Kh6 Qe4 Nh5 Qf4+ Kh7 Nc6 Rg8 Rc8 Kh8 Nb8 Kg7 Rf8 Rh8 Rf7+ Kg8 Rh7 Kf8 Rh6 Kg8 Rd6 Kg7 Rd5
1R2brqQ/r1pN1bQ1/BpP3B1/P2K1BBq/2Rn2P1/3p3N/3b4/3k1q1N w - - 0 1 legal: proof: h4 e5 b4 g5 f4 a5 d4 axb4 dxe5 Ke7 g4 Ke8 f5 Nc6 hxg5 Nce7 Bf4 Bh6 Bc1 Ng6 fxg6 Bf8 Kf2 Ke7 Ke3 Ke6 Ke4 h5 a4 b3 c4 f6 c5 b6 g7 b2 g6 h4 a5 h3 c6 h2 Qd4 d6 Nh3 Bd7 Nc3 Be8 Ra4 Nh6 g8B+ Nf7 g7 Ra7 Bg5 Qc8 Bh7 Nd8 g8N Bh6 e3 b1B+ Bd3 Qb8 Ne2 Ba2 Rc4 Qa8 Rf1 h1Q+ Rf3 Qb8 Ng3 Qa8 Qb2 f5+ Kd4 f4 e4 d5 Nf6 Qh2 Nh1 Rf8 Nd7 Bb3 Re3 f3 Be2 f2 Bf5+ Kf7 Qc3 f1Q e6+ Kg7 e7 Ne6+ Kd3+ d4 e5 Ba2 Ke4 Qd8 Kd5 Qb8 Ng1 Qh5 Nh3 Qc8 Bh4 Bg5 Rf3 Bd2 Bg5 Bf7 e8Q Bb3 Bf6+ Kh6 Qe7 Be8 Qa1 Ng5 e6 Qa8 Qd8 Qb8 e7 Ne6 Bd1 Ba2 Ba4 d3 Bb5 Qc8 Ba6 Qa8 Bb2 Qc8 Bc1 Qb8 N3f2 Kg5 Nh3+ Kh4 Qg7 Qc8 Rf4 Qb8 N1f2 Kg3 Nh1+ Kg2 Re4 Kf3 Re5 Bb4 Bg5 Bd2 Re4 Qc8 Rf4+ Ke2 Rf3 Bg6 e8B Kd1 Qdf6 Qa8 Qh8 Qc8 Qfg7 Nc5 Re3 Rg8 Kd4 Qb8 Rc3 Qa8 Bf7 Qe8 Rc2 Qe6 Re5 Rf8 Re2 Qb3 Re8 Qe6 Rc8 Bc4 Be8 Qg8 Rb8 Bd5 Rc4 Be6 Bf7 Bd5 B7e6 Be8 Bf7 Be6 B7g6 B6f7 Ke5 Ne6 Kd5 Nd4+
RK4n1/3PqNQ1/2k1Pr2/RR1b1p1B/1n5p/2pqBnRq/1QP3N1/2r3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 e4 e5 a4 Bd6 axb5 dxe4 Rh2 e3 Rh6 e4 Rh1 Be5 fxe5 Ke7 Bd3 Kd7 Bf1 Ke8 Ke2 Kd7 g4 a5 d4 f5 b4 c5 d5 h5 g6 a4 b6 a3 b5 c4 e6+ Kd6 g5 a2 b7 c3 b6 h4 g7 Rh7 g6 Ra5 Rh3 Rc5 Na3 Rh6 Rg3 Nc6 b8B+ Qc7 b7 Nb4 Nb5+ Ke5 d6 Rh5 d7 Rg5 Nd6 Rd5 Nf3+ Kf6 Ba7 Ke7 b8R Ba6+ Rb5 Qb8 Nf7 Bb7 Ne1 Qf8 Ng2 Re5 Bd2 Bd5 Qc1 Rh5 Qb2 Rh6 Ra5 Qe8 Rb1 a1Q Bc1 Qa4 Bd4 Qc6 Ba7 Qd6 Bd4 Nf6 g8R Qd8 Rf8 Ng8 g7 Rf6 Bc5 Qb6 Rfa8 Qd8 Rba1 Qf8 Rb5 Qd8 R1a5 Qf8 Ke1 e2 Kf2 e1N Ke3 Nf3 Kf4 e3 Be2 Qd8 Bd1 e2 Bg1 e1Q Bce3 Qf1 Be2 Bb3 Bd1 Qdd3 Be2 Bd5 Bd1 Nh6 g8Q Qf8 Qg7 Ng8 Bc1 Re1 Bce3 Nh2+ Bf3 Rc1 Ke5 Qe8 Bh5 Qf3 Rg4 Qh3 Rg3 Qf1 Kd4 Nf3+ Kc5 Qd3 Kb6 Qd8+ Ka7 Qe8 Nd8+ Kd6 Kb8 Qe7 Nf7+ Kc6
2Q5/Nb2pqK1/Bp1QrR1Q/BPR1PB2/N2q1q2/Bk1b2b1/4npPn/8 w - - 1 2 legal: proof: h4 a5 b4 g5 f4 d5 c4 Bd7 cxd5 Ra7 f5 Ra6 hxg5 Bh6 b5 Bc8 Qa4 Bf8 Qb4 Rg6 fxg6 axb4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 e4 f5 d4+ Kb6 a4 Ka5 g7 h5 d6 c5 e5 h4 d7 b3 d5 Kb4 g6 b2 Kg5 c4 a5 f4 d6 c3 a6 h3 a7 h2 a8B c2 Nc3 b1B Nge2 f3 Ra6 f2 Ba3+ Kc4 Na4 Kb3 Nd4+ Ka2 Nc6 Kb3 Bd3 Qb6 d8B Rh6 d7 Nf6 Na7 Ng4 Rc1 h1Q Bf5 Qd4 Rf6 Nc6 Ba5 b6 d8Q Nh2 Bb7 Qf1 g8Q+ Qfc4 g7 Qf7 Ba6 Bb7 Rd6 Rf6 Qh7 Re6 g8Q Bg7 Qge8 Bf6+ Kh6 Bh4+ Qg6 Bg3 Qf8 Qa1 Qc8 Nd4 Qg7 Ne2 Kh7 Qf8 Q7h6 Qd4 Qf6 Qe8 Kg7 Qh5 Rc6 Qe8 Rc5 Qh5 Rh1 c1Q Rd1 Qcf4 Qfg6 Rc6 Qd6 Bd3 Rh1 Ng4 Rh4 Nh2 Rg4 Qe8 Rg5 Qh5 Rg6 Qhf3 Rf6 Qh5 Qdd8 Re6 Qd6 Qf7+
3n3R/1qp3R1/b1PBbrbN/1n1nQN2/5P1K/pB2pQR1/PB6/1kq2B2 w - - 1 2 legal: proof: g4 d5 e4 dxe4 b4 f5 Na3 b5 Nb1 a5 h3 g5 gxf5 a4 h4 Ra5 bxa5 g4 Bc4 Bh6 Bf1 Bg5 hxg5 Qd6 Rh3 Qd5 Rh1 Qd8 d4 Kf7 c4 h5 f4 e5 Kf2 g3+ Kg2 b4 Kh3 h4 c5 e3 g6+ Kf6 a6 e4 g7 e2 a7 e1Q a8Q g2 d5 e3 d6 b3 d7 a3 Qa7 b2 Qa5 Rh6 Nd2 b1B Nb3 Ne7 g8B Nbc6 Ne2 Nd5 Ng3 Ba6 Qf3 Qb8 d8R Qb7 Rd7 Nd8 c6 g1N+ Kg4 h3 Nd4 h2 Rg7 Qd1 Bb2 Qc1 Qc5 Rg6+ Kh4 Ne2 Rg1 h1B Be6 Ndc3 Bb3 Nb5 Qcd5 Nec3 Qde4 Nf7 Qe8 Nd5 Qh8 Ke7 f6+ Kd6 Ndf5+ Kc5 Nh6 Kb4 Ngf5 Nd8 f7 Rf6 R1g3 Bg2 Qe8 Bh3 Qe5 Bd3 Nd4 Bg6 f8B+ Qc5 Bd6 Be6 Bc1 Kc3 Bb2+ Kd2 Ndf5 Qc4 Be2 Qc3 Rh1 Qc5 Bf1 Qc1 Bbc4 Kc2 Bb3+ Kb1 Ng4 Qc8 Kg5 Nb6 Rh8 Qa8 Kh4 Nd5 Ngh6 Qb7
kNq1qR1K/1n2B2r/1P1N1n2/3qB1R1/1P2p2p/3RrB2/2p1bR1P/r4Q1Q w - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 e6 a4 Bd6 axb5 Be5 f4 f5 g3 fxe4 f5 Bf4 gxf4 Ba6 Kf2 Bb7 Ke1 Bc8 Ke2 Kd7 Ke3 c5 b4 Kc7 d4 Kb7 f6 a5 f7 h5 f8Q g5 f5 c4 b6 e5 d6 h4 d7 a4 f6 c3 f7 g4 d5 a3 d6 c2 Bb2 g3 Be2 g2 Nc3 a2 Nf3 g1R Nb5 Ra6 Nfd4 Rg6 Rg1 Qc7 d8R Rhh6 d7 Nc6 Nd6+ Ka8 Rg5 Rh7 Qh1 Na5 Rf1 a1Q Nc6 Qd1 Bf3 Nf6 Rf2 Nb7 Nb8 Ra1 Be2 Qd5 Qe8 Qa2 f8R Nh5 Rg3 Rg8 Qg6 Qa7 R8f3 Qa2 Rdf8 Qd5 d8B Bg4 Rg1 Qc8 Bd4 Bh3 Qgg2 Rg3 Qf1 Bd7 Bb2 Bb5 Bd1 Rh3 Rg5 Bd3 Kd2 Bc4+ Kc3 e3 Rfg3 e2 Bf6 e4 Be7 Qdc6 Kd4 e1Q Ke5 Q8e8 Rc3 Re3 Bf3 Qb1 Kf5 Qec8+ Kg6 Qd1 Rb3 Nf6 Be5 Be2 Rc3 Rh6+ Kg7 Qdd5 Rb3 Q6e8 Rd3 Rg6+ Kh8 Rg7 Rg4 Rf7 Rg5 Rh7#
4R2R/4Qqp1/1R1n1prP/2K1q1PQ/4NP1b/n1Rp4/kn6/N1qrB1BB w - - 1 2 legal: proof: d4 b5 a4 d5 axb5 c5 Qd3 Be6 Qxh7 cxd4 e4 d3 Bg5 d4 Bc1 Bd5 exd5 Qd7 Bd2 Qd6 Bc1 Qd8 Kd2 Kd7 h4 Kd6 f4 Kc5 c4 Kb4 g4 Kb3 c5 e5 h5 a5 b6 e4 d6 f6 b7 a4 c6 a3 d7 a2 g5 Bc5 c7 Bd6 c8R Bc5 Na3 Bf8 Ne2 Bb4+ Nc3 Ra6 Nc2 Qe7 d8Q Nd7 b8B Ne5 Bg2 Rd6 Rb1 a1Q Ba7 Qf7 Qe7 Nh6 Rh3 Rd5 Bh1 Nf5 Re8 Nd6 Qg6 Rh6 Qh7 Qa3 Na1+ Kc4 Rf3 Rg6 Qh6 Ba5 b4 Bb6 b5 e3+ Kd1 e2+ Kd2 Qa6 Ne4 e1N Bb2 Nc2 Bc3 Na3 Ba5 Bc5 b6 Qc8 b7 Qce6 b8R Bb6 Ke1 d2+ Kf2 d1Q Be1 Qc1 Ke2 Bc5 R1b6 Nd3 Rh8 Nb2 Rbe8 Re5 Rfb3 d3+ Kf3 Bg1 Qh7 Rb5 Rc3+ Kb4 Qh6 Bf2 Qh7 Bh4 Qh6 Qd1+ Ke3 Qc1+ Kd4 Ka4 Qh7 Re5 Nd2 Re2 Ne4 Rd2 Kc5 Rh6 Qf5 Rg6 h6 Rd1 Qg4 Nb1 Rc4+ Ka3 Rc3+ Ka2 Qh5 Na3 Bb8 Ndb5 Be5 Nd6 Bd4 Qd2 Be3 Qc1 Bg1 Qe5+
1k1rK3/p1r1BR2/PBp1bqb1/PN1nQQr1/2P5/q4qRQ/3pNB2/7B w - - 0 2 legal: proof: b4 g5 g4 f5 gxf5 e5 d4 exd4 a4 g4 h4 Na6 b5 Qg5 bxa6 Qd8 a5 Be7 Ra4 Bg5 hxg5 Nh6 Ra1 Ng8 Kd2 d5 Kd3 Kd7 c4 h5 f4 b5 e4 b4 g6 c6 f6 Kc7 g7 b3 e5 b2 e6 h4 f5 g3 e7 g2 e8Q h3 f7 h2 f8B Rb8 f6 Ne7 g8Q Qd6 f7 Nf5 Qc2 Bb7 Qh7 Qd8 Na3 b1B Bc5 Rc8 f8B+ Kb8 Bfe7 Ne3 Bb6 Rc7 Ne2 g1R Qh3 Rg5 Bg2 Bc8 Rf1 h1Q Nb5 Be6 Rf7 Rhg8 Be4 Qf3 Ra3 Qg3 Rb3 Qd6 Bh1 Qa3 Bd2 Rf8 Be1 Rh8 Kd2 d3 Kc3 d2 Bf2 d1Q Qcf5 Bd3 Kd4 Rf8 Ke5 d4 Kf6 Nd5+ Ke5 Be4 Rg3 d3 Qh8 d2 Qh3 Nb4 Kf6 Qf1 Qe5 Bg6 Qd7 Qg2 Qd3 Qf3+ Qdf5 Qd4 Kg7 Rd8 Kf6 Nd5+ Kg7 Rd6 Kf8 Rdd7 Ke8 Qdb2 Qd6 Qf6 Qde5 Rd8+
n1NK1B2/1Bp5/PpbB3p/q1n1QBk1/1PR5/P1qQ3Q/1r1r4/Nr1R2n1 w - - 0 1 illegal: No proof kernel
3Nq1Bk/rpR1QQ2/pp4Bq/2K1n1R1/PrP2q1b/r5P1/4RnN1/B1R5 w - - 0 1 illegal: No possible last move
1nK5/pB4qQ/1BQ1r1R1/pR4Nn/N1P1pq2/PQ3R1n/2P2b2/b1Rb2k1 w - - 0 1 illegal: No proof kernel
Bk2N2Q/4r3/1KR1P1p1/1Rp1P1b1/1N1Bn2r/2Q1pqP1/3B4/nq1q1nQQ w - - 0 1 illegal: No proof kernel
K1b1NR2/Np2q3/p3N3/q3PBp1/1RP3r1/2rQQqkb/1N1bB1P1/B6n w - - 0 1 illegal: No proof kernel
kB1rNb2/p1R1bp1Q/3P2qr/qNB1QR2/1P5p/1b3P1N/2N1B3/4nKr1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Bg7 d5 Kf8 Ra4 Nc5 Ra1 Nd7 e6 Bh6 exd7 Kg7 Ra2 Kf6 Ra1 Bf8 g4 Ke5 b4 c5 g5 h5 f3 h3 b6 h2 b7 c4 b8Q h4 g6 c3 g7 c2 Be2 Qa5 d8B Rh6 Bc7 Nf6 g8N Ne4 Kf1 Nc5 Na3 Nd3 Be3 c1B Nc2 Be6 Bc5 Ne1 Nf6 Bg5 Ne8 Bf6 Qb5 Rd8 Nh3 Bg5 Rg1 h1Q Bb8 Qh2 Rg4 Qg3 Qdd3 Bf6 Rf4 Qg6 Rc1 Bg5 Nc7 Bf6 d7 Bg5 d6 Bb3 Rc4 e6 Ne8 Bge7 Qe3+ Kd5 Rf4 e5 Qbd3+ Kc6 Rf5 Kb7 Qf4 e4 Qe5 Rc8 d8N+ Ka8 Nc6 e3 N6d4 Rd8 Nb5 Qe6 Rg5 Qf6 Qh7 Qg6 Bd3 Ng2 Rf5 e2+ Kf2 e1R Bf1 Rd1 Be2 Ne1 Kf1 Qb6 Ra1 Rc1 Ra6 Qa5 Rc6 Rd1 Rc7 Rd2 Bd1 Rg2 Be2 Rg1+
2B4B/1Q2n3/1R1BnP1Q/1pP1bbRp/1P2n1B1/N1b3r1/4pNk1/K2rrN2 w - - 0 1 illegal: No possible last move
1N1N4/1p1B3n/b3n1Q1/n3P2Q/1rp2R2/Pb4Br/1PNkr1p1/N1R1bK1B w - - 0 1 illegal: No possible last move, all moves rejected
r2Q4/1B1R1Np1/3P2n1/Q5Pb/r1N1K2N/r1R3pP/2rp2NR/kqrnB3 w - - 0 1 illegal: No proof kernel
b3Qq2/1Q1R1prr/2KR3p/2r4r/N3Bp2/B3N1PP/k5P1/bRr1NN1n w - - 0 1 illegal: No possible last move, all moves rejected
2n5/b3rQR1/Bb4Q1/QNPb1n1n/4p3/1p1pP1R1/3P1Qbq/2Nk1KBR w - - 1 2 legal: proof: f4 c5 b4 g5 fxg5 Bh6 h4 Bf8 a4 b5 axb5 cxb4 g4 a5 g6 Nf6 g7 Ne4 g5 Ra6 h5 Rg6 hxg6 Nf6 Rh4 Ng8 Rh6 Nc6 Rh1 Nb8 c4 f5 e3 e5 b6 Ke7 b7 Kd6 Rh3 Kc5 Qg4 d5 Na3 h5 Nf3 h4 Ra2 e4 Qg1 d4 Nc2 a4 Qg2 f4 Qg4 b3 Ra3 Nf6 g8R Rh7 g7 Nbd7 b8Q Bb7 g6 Nb6 Qa8 Qc7 Qg3 Nc8 Nh2 f3 Qf2 Bd5 Rh8 Nh5 g8Q Re7 Rg3 h3 Ng4 h2 g7 h1B Qf7 Qd6 Ra2 a3 g8Q Qf4 Ra1 a2 Na3 Kb4 Rb1 a1B Ne5 Qh4 Qfg6 Qh2 Nb5 Bc3 Q8f7 Bg2 Qg1 f2+ Ke2 Kc5 Bb2 Ba5 Rh7 Bb6 Qa5 Bh1 Rg7 Ba7 Bg2 f1N Qgf2 Bb6 Bh3 Bf3+ Ke1 Ba7 Bd7 Bb6 Bc6 Ba7 Bb7 Bb6 Ba6 Ba7 Rg4 Nfg3 Bc3 Nf5 Rg3 Bb6 Kf1 Ba7 Nc6 d3 Be5 Bb6 Ncd4 Ba7 Qab6+ Kb4 Ne2 Ka4 Nc1 Kb4 Nc3+ Ka3 Ra1+ Kb2 c5 Kc2 Nb5 Kd1 Qa5 Rc7 Rg5 Be7 Bg3 Bd8 Rb1 Qh4 Bh2 Re7 Rg3 Bdb6 Bg1 Qh2 Na2+ Kc2 Ke1 Qh3 Bh2 Rd7 Rd1 Rc7 Nc1 Qh4 Kf1 Re7 Kg1 Be2 Kg2 Bg4 Rg1 Bf3+ Kf1 Kd1 Rh1 Qh3+ Rg2 Qg3 Bg1 Qh2 Rg3 Bg2+
2R4K/nRbqkN2/1n1p2P1/1p1b3p/1P1BNQR1/Pnn1r2b/B4Q2/1B3R2 w - - 0 1 illegal: No proof kernel
2R2nN1/B1r3b1/5rQP/2r1pn1Q/1N1RQrq1/1QNKP1kp/4n1Pp/3B4 w - - 0 1 illegal: No proof kernel
1k1B3Q/p2PPQNB/B3K3/P1R5/b2qn2R/1np5/n1pBn1NR/r2rr3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 e4 e5 c4 Bd6 exd5 bxc4 Qg4 e4 Qd1 Be5 fxe5 Kd7 Ke2 Ke7 Ke1 Ke8 Kf2 Kd7 Kg3 h5 Kf4 c5 Kf5 Kc7+ e6 e3 g4 c3 a4 c4 b4 h4 d4 c2 g6 c3 b5 f6 b6+ Kb7 d6 h3 a5 h2 d5 e2 g5 e1R d7 Re2 g7 Re4 g6 Qe7 d8B Qe8 d6 Rhh4 d7 Nc6 e7 Kb8 b7 Nb4 Ba6 Na2 Qh5 Re1 Ne2 Rd4 Ng3 Rdd1 Na3 Qf7 Bh6 Qc4 Bd2 Qh4 Rb1 Qd4 Rb5 Ra1 Re5 Rad1 Ke6 f5 Qh8 f4 Re4 f3 Nc4 f2 Nf5 f1N Nce3 Nf6 Rh4 Ne4 g8B Ra1 g7 Red1 Rg1 h1N Bh7 Nhg3 g8Q Ne2 Ng2 Re1 Rgh1 Red1 Be3 Nfd2 Qf7 Nb3 Ng7 Rd3 Bb6 Rd2 Bc5 Kc7 b8R Nbc1 Rb2 Rb8 Bc4 Bb7 Ba6 Bc6 R1h2 Ba4 Rb4 Rb5 Rc4 Rbb1 Bh6 Nb3 Be3 Rdd1 Bh6 Re1 Bd2 Kc6 Bb6+ Nec5+ Kf5 Rbd1 Bd8 Kd6 Rb4 Kc6 Rb5 Ne4 Re5 Rdc1 Ke6 Rcd1 Bd3 Kb7 Rc5 Ka8 Ba6 Kb8
3b3b/Q1QBBn2/2p1P2b/p1Qp3k/rnKR2nq/P1n3R1/1B1P4/1N2N1Q1 w - - 1 2 legal: proof: g4 e5 f4 g5 c4 f5 Qa4 a5 Qc2 b5 Qd1 bxc4 fxe5 f4 h3 Bb7 Qc2 Be4 Qb3 Bf5 gxf5 g4 Qa4 g3 Qd1 Ra6 Rh2 Rg6 Rh1 Rg4 hxg4 Qh4 Bh3 Qe7 Bf1 Qd8 b4 Kf7 e4 h5 Ke2 h4 f6 Kg6 b5 d6 a3 h3 f7 c3 Kd3 c6 g5 c2 e6 g2 e5 h2 e7 f3 e8Q f2 b6 Qf6 b7 Rh5 Bb2 c1B Qd7 Na6 b8Q Nb4+ Kc4 Bh6 Nf3 g1B Bh3 f1N f8B Bb6 Qda7 Ng3 Qc2+ Ne4 Ne1 Bd8 Bd7 Rh4 e6 Kh5 g6 Qe7 Rg1 h1N g7 Nc3+ Rg4 Nf2 Rd4 Rg4 Qac7 Qh4 Qba7 Re4 Be7 Ng4 Qab7 Be3 Qa8 N8h6 g8Q Nf7 Qaa7 Bh6 Qa4 Nf6 Qg1 Ng4 Qb5+ Ncd5 Bc3 Bb2 Qbc5 Rf4 Ra2 Ba1 Rc2 Re4 Bb2 Rf4 Bg5 Nc3 Be7+ Nge5+ Kb3 Nba2 Rb4 Nd5 Bd4 Ng4 Rc3 Re4 Rg3 Bb2 Bf2 Bh8 Bd4 Rf4 Bb2 Nc3 Rd4 Re4 Rdd3 Rc4 Rd4 Ra4 Q5b6 Nb4 Kc4 Qf6 Qc5+ Qg5 Q5b6 Qh4 Qc5+ d5+
n4N1k/1qp2Q2/n1Q4q/Qp1q1B1P/1P1q3K/rRr1p1R1/b3PBB1/N5B1 w - - 0 2 legal: proof: f4 b5 c4 h5 a4 d5 cxd5 g5 fxg5 Bg7 g4 Bd4 a5 Bb6 axb6 hxg4 Kf2 Kf8 Kg3 Kg7 b4 a5 d4 f5 h4 e5 b7 a4 h5 e4 d6 a3 g6 a2 d7 Ra6 d5 Ra3+ Nf3 Rh6 d6 Kh8 g7+ Kh7 Qd5 Rc3 Qc6 Rc4 Rh3 Nf6 g8B+ Kh8 Be6 f4+ Kh4 g3 Bg2 Na6 b8B Rg6 Ne5 f3 Ba7 f2 Bf5 f1Q Na3 Rc3 Rb1 a1Q Nc2 Qf3 Bf2 Nd5+ Bg5 Qb2 Na1 Qc1 Rb3 Nb6 Bg1 Rf6 B5e3 Na8 Bef2 Qg8 d8Q Qh6 Qdd7 Qd5 Qe7 Be6 d7 e3 d8Q+ Bg8 Bh1 g2 Nd7 Rd6 Nf8 Qff4+ Bg4 Qfd4 Rg3 Rg6 Qf7 Rd6 Bh2 g1Q Bg2 Qh1 Qb8 Rd8 Qbb6 Rb8 Qa5 Rb7 Bh3 Ra7 Bhg1 Qhf3 Qd6 Qb7 Bg2 Qfd5 Qc6 Nb8 Qab6 Ra3 Qa5 Na6 Qab6 Bh7 Qa5 Be4 Bf5 Bb1+ Rg4 Qdg7 Rg6 Ba2 Rg3 Qgd4+
3bbnNr/3PBk2/2pQR3/2Rp1PQ1/2B5/2BpQ2b/N1bP1KBq/2nq4 w - - 0 1 illegal: No proof kernel
1rR5/4rn2/pb3q1p/1kbNr1P1/pN2Q1rP/P5Bq/2BQ1RQB/B2K4 w - - 0 2 illegal: No proof kernel
Q2Q1r2/3N1Q2/qRP2KN1/1rQ1P2N/4b1p1/3kn1qp/3p2P1/R1b1BbbB w - - 0 1 illegal: Other
bQ2Qnb1/B3R1pq/qN1NBp2/1P1p1qP1/3K1PQ1/1k6/3n1BQ1/r1q4R w - - 1 2 illegal: No proof kernel
1n2N1kr/1n2pnP1/R4p1R/Kp2PP1B/QN2b3/1q1Nb3/1Qn1qB2/B2B4 w - - 1 2 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 h3 b5 h4 g5 gxh5 g4 Ba3 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Be6 Qb3 Bf5 Qd1 Bc8 f4 c5 a4 b3 d4 c4 Kd2 b2 Kc3 g3 Kb4 g2 e4 c3 d6 c2 g6 Rh7 d5 Be6 a5 Nf6 a6 Bg4 h6 Nh5 f5 Qd7 a7 Bg7 a8B Kf8 Ra6 Qb7 d7 Rh8 d8B Qb6 d6 Qc7 h7 Qc5+ Ka5 Qe5 d7 Nf4 Ne2 g1Q Nbc3 b1N Bb6 Nh3 d8N Qgc5 Nc6 Qcd5 Nb4 Qc4 Nf4 Na3 Nfd3 Ng5 Bb2 c1N Qa4 Bf3 Ba1 Rg8 h8Q Bh6 Be2 Nc2 Ncd5 Qh2 Qf6 Rh8 g7+ Kg8 Qb2 f6 e5 Nf7 Bd1 Qe2 Bf2 Be3 Nc7 Qa2 Rh6 Qd5 Nc5 Qb3 Ne8 Nd3 Bd5 Bg2 Bf3 Bh1 Bh5 Be4 Ne6 Nc5 Nf4 Bb7 Nfd3 Ba8 Qba2 Be4 Qb2 Nb7+
q3q1B1/B2NPQ1R/k4N2/1qQKp1r1/pbp4R/1B2P1P1/2n1b1R1/1qr4B w - - 0 1 illegal: No proof kernel
1r2R1Br/Q3n1P1/Q5B1/2B2p1p/1R1P1k2/1Q2n1r1/1QpK2qP/rq2bNN1 w - - 0 1 legal: proof: c4 g5 d4 d5 a4 dxc4 f4 b5 fxg5 Bf5 axb5 Bd3 exd3 Qd6 Qc2 Qd5 Qd1 Qd8 g4 Kd7 b4 Kd6 b6 c5 b7 a5 g6 f5 g5 h5 g7 e5 g6 c3 b5 a4 b6 c2 d5 c4 Nd2 c3 Rb1 e4 Ba3+ Ke5 d6 c1R d7 e3 Bc5 e2 Rb4 Qg5 d8Q a3 Qc8 Ne7 g8B a2 g7 Na6 b8Q+ Nc7 b7 a1R Qa7 Qg2 b8Q c2 d4+ Kf4 Qca6 Ra3 Bh7 Rg3 Bg6 Ra1 Qbb7 Rb8 Qc1 Ncd5 Qb1 Raa3 Qb2 Ne3 Qd5 Ra4 Qdb3 Ra2 Nb1 Ra1 Kd2 Qe4 Bg2 Qb7 Bd5 e1Q+ Kd3 Qf2 Nd2 Qg2 Kc3 Qb5 Bdf7 Qbf1 Bg8 Qb1 Kd3 Nc6 Nf1 Be7 Kc3 Bh4 Kd3 Rg5 Kc3 Bf2 Kd2 Ne7 Nf3 Rg4 Rg1 Qh1 Rg3 Qg2 Ng1 N3d5 Re3 Rg3 Re6 Ne3 Re5 N7d5 Re8 Ne7 Be6 Kg4 Bef7 Kf4 Bg8 Be1+
2q1N1Q1/b2B2Q1/1N2pR2/1npbB2K/4rq2/BPbPPp2/2k1b3/QR2Q1n1 w - - 0 1 legal: proof: c4 b5 g4 a5 h4 d5 cxd5 g5 f4 gxf4 a4 Nf6 axb5 Rg8 g5 Rh8 h5 Ra6 Kf2 Ng8 Ke1 Rg6 hxg6 Bh6 Kf2 Bg7 Ke1 Bf8 Kf2 Kd7 Kf3 Kd6 g7 Kc5 b3 Kd4 d6 h5 d7 f5 b6 a4 b7 e6 g6 a3 Rh2 a2 Na3 h4 Qc2 h3 Rf2 h2 Qb1 h1B+ Bg2 Na6 b8B Ne7 g8Q Rh4 g7 Nc6 Nc4 Bc5 Nh3 Ba7 Nd6 Bb7 d3 Kc3 e3 Qc8 d8Q Ne5+ Ke2 c5 Ne8 Ba8 Qf6 Nc7 Bc6 Nb5 Bd7 Bad5 Ba3 Bhg2 Qe1+ Kc2 Bd6 Nf3 Rb1 a1B Be5 Bc3 Qgf7 Bh1 g8Q Rg4 Rf1 Ng1+ Kf2 f3 Nf4 Rh4 Kg3 f2 Q7g7 Bdf3 Nd5 Be2 Nb6 Bd5 Nc4 Rd4 Nb6 f4+ Kh4 Re4 Bd6 Bd2 Qa1 Bc3 Be5 Nh3 Rg1 f1Q Rg6 Ng1 Rf6 Qf2+ Kg5 f3 Kg6 Qg3+ Kh5 Qf4
n1R2NB1/q6Q/NN2p1p1/1p4rP/6Qq/1b1Qn1nQ/kP2KRPB/n3b3 w - - 1 2 legal: proof: c4 b5 e4 h5 Qxh5 d5 Qh7 f5 cxd5 fxe4 a4 a6 a5 Ra7 Ra3 Rb7 Ra1 Rb6 axb6 a5 f4 Kf7 h4 c5 h5 c4 d4 e3 d6 Ke6 f5+ Kd5 d7 a4 f6 a3 f7 g6 b7 e2 Bf4 a2 Nh3 c3 Ng5 Kc4 d5 Kb3 d6 c2 Na3 c1N Ne6 Nf6 Nc7 Ng4 Nc4 Qe8 d8Q Be6 d7 Na6 b8Q Ne3 Qdc8 Bd5 d8Q Qd7 Rb1 a1N Bh2 Ka2 Nb6 Bb3 Qbb7 Bg7 Qe4 Re8 f8N Bc3+ Kf2 e1Q+ Kf3 Nec2 Bc4 Ne2 Rf1 Qh4 Rf2 Ng3 Bg8 Ne3 Rc1 Bb4 Qf5 Be1 Qh3 e6 Qb7 Re7 Qe4 Rf7+ Qef5 Qde7 Qd3 Qa3 Qf4 Rf5 Rc6 Rg5 Qfg4 Nb8 Rc5 Qa7 Rcc2 Na6 Rc6 Nb4 Na6 Nbd5 Rc8 Nc7 Qf1 Na8 Qd3 Ngf5 Ke2 Ng3+
2K4n/NB2pp2/1k1pr3/1bb1r1Bq/RP1NB3/N4PP1/3r1q2/rRQ1BQ2 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 g4 e5 d6 h3 Kd7 hxg4 Ke6 g5 c5 d4 Kd5 e6 Nd7 exd7 cxd4 Be2 Ke5 Bf1 Ke6 Kd2 Kd5 Kd3 Kc5 Ke4 a5 c4 h5 g6 h4 g7 a4 g3 d3 f3 h3 b6 h2 b7 a3 b8N d2 Ne2 a2 Nc6 Rh3 Na3 Ra7 Ned4 Rh8 Bd3 Ra4 Qf1 d1R Bg5 Nh6 g8Q Bg7 Na7 Kb6 Kd5 Rd2 Be4 Nf5 b4 Qc7 d8B Bd7 Rg1 h1Q c5+ Kb7 c6+ Kb6 Qh7 Nh4 Qh6 Ng6 Rb1 a1R Rg2 Rd3 Ra2 Qg1 Qh1 Rh6 Qc1 Nh8 Qg2 Ka6 Qgf1 Qb8 c7 Re6 c8B+ Qb7+ Nc6 Qf2 Bb6 Ra5+ Nb5 Rd1 Bf4 Re1 Nc2 Re2 Ra4 Be5 Na3 Qg2 Bf2 Bd4 Be1 Rd2 Be3 Qh1 Bg5 Qh5 Qh3 Kb6 Qf1 Qa7 Bb7 Be8 Qf2 Qa6 Na7 Bc5+ Nd4 Qe2 Qf1 Qf2 Ba6 Bb5 Bb7 Bd3 Bc6 Ka6 Ba8 Bb6+ Kc6 Be2 Kd7 Bd3 Ndc2 Bd4 Bab7+ Kb6 Kd8 Rae5 Kc8 Bc5 Nd4 Bb5
b1N1n2b/2P1q1bp/QB1Q1qp1/3p2PB/2BR2K1/1n1Q3r/1R1BN1bP/7k w - - 0 2 legal: proof: d4 b5 e4 c6 a4 Ba6 axb5 Bb7 d5 cxd5 e5 Bc8 f4 a5 Nf3 d6 exd6 e5 Ng1 e4 Ke2 Ra7 Kf2 Re7 Ke1 Re5 fxe5 Be6 Bf4 Bh3 Bc1 Bc8 Kf2 Kd7 Kg3 Ke6 b4 Kf5 c4 f6 b6 e3 b5 Ke4 e6 e2 c5 e1Q+ Kg4 a4 b7 a3 d7 a2 e7 Qd2 e8B Na6 b8Q Qd3 c6 Qa3 b6 Qae7 b7 Nc5 Bh5 g6 Qa8 Nb3 b8Q Bb7 Bc4 Bg7 Qa6 Ba8 Bd2 Qb6 d8B f5+ Kh3 f4 g4 f3 g5 f2 Kg4 f1B Na3 Bg2 Rb1 a1B Qd6 Qd4 Bb6 Qdf6 c7 Bc3 Rb2 Bd4 Bc3 Ke3 Ne2 Kf2 Bba5 Be5 Qd3 Bd4 Ra1 Be5 Nb5 Bd4 Nc1+ Kg1 Bd2 Kh1 Ne2+ Qf1 Qf5 Nc5 Qdd7 Bh6 Ra3 Nf6+ Kg3 Rg8 Nd6 Rb8 Rd3 Ne8 Nc8 Bh8 Kg4 B6g7 Qdd6 Rb3 Rd4 Rh3 Qd3 Qff6 Bb6 Nb3
1bQ1r2n/5r2/bQ4pk/rR3n2/B6n/2QppBPQ/1NP1P2R/NR3K1r w - - 1 2 illegal: No possible last move
b2nn2k/B5R1/2QNPp1B/1p1BNn1R/1PRb4/2n2p2/1K5P/r2rb1QR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 c4 d5 cxd5 Qf6 a5 Qb6 axb6 Bh3 Qb3 Be6 Qd1 Bc8 d4 c5 Kd2 g5 Kc3 a5 e4 g4 e5 a4 e6 a3 h6 a2 d6 g3 h7 c4 b7 g2 d5 Nc6 b8B Nf6 Nf3 g1B Bg2 Bb7 d7+ Ke7 Kc2 c3 d8R Bh6 Rd7+ Kf8 b4 Kg7 d6 Rd8 h8R Ne8 Kb3 c2 Nc3 Ra6 Re7 Ba8 d7 Ba7 Rb1 a1N+ Kb2 Nb3 Ne5 Nbd4 Ne4 Ra1 Qg1 Nf5 Bf3+ Bg5 Rh5 Bf2 Bg2 Bgh4 Ba7 Kg8 Bd2 f6 Rc1 Be3 Reh7 Be1 Rf7 Nh6 Rg7+ Kh8 Bf1 f3 Bc4 Rc8 d8Q Bd4+ Bc3 Rc7 Qd7 Nd8 Bd5 Rc4 Qc6 Rc5 Rb1 c1N Nd6 Ne2 Rc1 Rc4 Kb3 Rc5 Bd2 Rc2 Bg5 Rd2 Rc4 Nc3 Be3 Rd3 Kb2 Rdd1 Rf5 Ng8 Bh6 Ne7 Rh5 Nf5
B1qB3k/1npnQqq1/NrRBrp2/K1P2N2/2Q5/P1pN1PB1/R7/5r1n w - - 0 1 illegal: No possible last move
1BQ1q1bN/B4Q2/q1N2BPn/1pK2Qpk/2R1Bpn1/n7/1PR1nPn1/3r4 w - - 0 1 illegal: No proof kernel
4rb2/1rrR1K2/1q3Q2/1pBp1p2/rPN1n1R1/BR2P1Q1/1N1PBr1r/4B2k w - - 0 1 legal: proof: f4 e5 a4 exf4 g4 b5 c4 h5 gxh5 Nc6 c5 Nb4 c6 Nd5 a5 Nb6 axb6 Bb7 cxb7 Qf6 Ra5 Qg5 Ra1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 b8B a5 b4 c5 h4 c4 e3 g4 h6 d6 b7 f3 h5 a4 h7 f6 h6 f2 Ba7 c3 b8B g3 Ra3 g2 Rh4 c2 Nf3 g1R Rg4 Rh1 Bc5 Ra7 Be2 f1R Ne1 Qb6 Nd3 Rf2 Qg1 Rhh2 Qg3 Rb7 Rb3 a3 Nb2 a2 Na3 a1R Nac4 f5+ Kd4 Kf6 Kd5 Ra4 Bc7 Ke7 Bd8+ Kd7 Bh4 Nf6+ Kd4 d5 Ke5 Rg8 h8R Ne4 Rh7+ Kc6 Ke6 Rh8 Nd1 Rg8 Ba3 c1R Ndb2 Rh8 Bce7 Rc3 Kf7 Kd7 Nd6 Rcc7 Rhg7 Kc6 h7 Rg8 h8Q Kd7 Kg6 Ke6 Qh6 Rf4 Qg5 Ke5 Kf7 Rh8 Qh3 Rf3 Be1 Rff2 Qg3+ Rf4 Q5h4 Rh6 Qg5 Nf6 Ndc4+ Ke4 Rh7 Rf2 Qg7 Rhh2 Rg5 Rfh4 Kg6 Rg4 Bc5 Rgh4 Rh8 Rh7 Qh6 Rhe7 Rh7 Re6 Rd7 Re8 Bf1 Ra6 Kf7 Ra4 Qe5+ Kf3 Rg4 Ne4 Qhf6 Ng3 Bd3 Kg2 Be2 Kh1 Qf4 Ne4 Qf3+ Rfg2 Qg3 Rf2
1n1n3Q/1N1R2q1/1B1b1b2/1NppB2p/1rQ2PbK/R1pPk3/3N3P/1B3r1N w - - 0 1 illegal: No possible last move, all moves rejected
2QQ4/1R2N1N1/b1p1B1pb/4kN2/2q1rnpP/R1Ppn1n1/P2Nr3/R4BK1 w - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 f5 dxe5 h6 g4 Na6 gxf5 Nb8 Bg5 hxg5 h4 Ke7 f4 d5 Kf2 b5 e4 d4 c3 g4 e6 Kf6 a6 b4 a7 b3 e7 c6 e8N+ Ke7 e5 b2 f6+ Ke6 f7 Kf5 e6 Bc5 f8Q+ Nf6 e7 Nd7 Ne2 Nb6 Nd2 b1N Kg1 Nd5 Ng3+ Ke6 f5+ Ke5 Qg8 Nh5 f6 Nhf4 f7 Ne3 f8N Qd5 Nf5 Ba6 Rh2 Rc8 a8R Qc4 Rh1 Rh6 Qh8 Re6 Ng6+ Kd5 Ra7 Re4 Rb7 Ba3 Rb3 Bc1 Ra3 Rb8 Qg8+ Kc5 Qe6 Rb2 Qc8 Kd5 Nc7+ Kc5 Ne6+ Kd5 e8B Rc2 Nge7+ Ke5 Bf7 g6 Neg7 d3 Be6 Rb2 Qb3 Rc2 Qb6 Rb2 Nb3 Re2 Qbd8 Nd2 Rh2 Rd4 Rf2 Ne4 Nd2 Ng3 Rf3 Rh2 Rf2 Re4 Re2 Rf2 Re1 Re2 Rb1 Qd4 Rb7 Qc4 Rd1 Bb2 Rb1 Bc1 Ra1 Nc2 Qb6 Nfh5 Nb3 Bh6 Qbd8 Ne3 Nd2 Nf4
5nR1/Q1qN4/p4bP1/1pN2RRn/P5B1/P1Bp1rp1/4QBkr/RK1n1b2 w - - 0 1 illegal: No proof kernel
2Q5/1N1RB2p/2r1P1n1/pN3b2/k2n2P1/1b2B1qB/pBPKp1Nb/1r2Q2R w - - 0 1 illegal: No proof kernel
3Nq2N/bKRb2p1/3B1p1r/rP2NQR1/BQ2n3/3PPp2/6p1/B2nB1rk w - - 0 1 illegal: Other
1NB1B3/1bn1bP1N/q1P4b/r1B1P1R1/Q6r/KNBppp1Q/R4p2/1k1n4 w - - 0 1 illegal: No proof kernel
2b1r2B/b4p2/Pq1NnQ1R/5BR1/2RQ3n/2PQ1ppn/2PQN1rp/2K4k w - - 0 1 illegal: No proof kernel
1Q1QrRN1/2np4/bp3PN1/5qNK/1b1nN2p/P1r5/kPQ2pr1/B3R2B w - - 0 1 illegal: Other
8/p5rp/K2Qb2B/pRQ1p1P1/1P2P1kN/Br1qnR1N/n2n2Bb/2N2N2 w - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 b6 f4 Nd7 fxg5 Ngf6 h4 Bg7 a4 Nh5 a5 bxa5 g6 Bf8 g7 Nhf6 g5 Nb8 h5 Qd6 Rh4 Ng8 Rh1 Qg6 hxg6 Be6 Qc2 Bg4 Qd1 Bc8 e4 Kd7 Ke2 e5 Kd3 f5 Kc4 c5 Kb5 c4 d4 c3 d6 Ke6 d5+ Kd7 Bg2 c2 Nh3 f4 Rf1 f3 Nd2 f2 Rb1 Ne7 g8Q Nbc6 g7 Ke8 d7+ Kd8 b3 Nb4 Ba3 Kc7 d8N Kd7 d6 c1Q Qc4 Rb8+ Nb7 Ned5 g8N Ke6 d7 Qc2 d8B Qd3 Bf6 Bc5 Nh6 Re8 Nf5 Na2 Bg7 Re7 Nh4 Kf7 Ka6 Be6 Bh6 Ne3 Rb2 Bd4 Nc5 Rb5 Qd5 Rc7 Qd6 Rcb7 Qc1 Rc7 Nhf3 Kg6 Nh4+ Kh5 Qc4 Kg4 Qcd5 Qc3 Nd3 Rg7 Nc1 Bb6 Q5c5 Qd3 Re1 f1N Re2 Nc4 Rf2 Nfe3 Nf1 Nd2 Rf3 Nd5 Qc8 Bg1 Qcc5 Ne3 Rc2 Nf5 Rc4 Ne3 Rb4 Rbb7+ Rb5 Bh2 b4 Rbc7 Qcd4 Rc3 Q4c5 Rb3
B2NRQ1Q/N4r2/8/1Q1nRr2/pBPNpbk1/b3Ppp1/2K1qnP1/1Q3q2 w - - 0 1 legal: proof: f4 c5 d3 b5 a3 e5 h3 g5 Be3 g4 Bd2 g3 Bc1 Qg5 a4 bxa4 d4 Bb7 dxc5 Bf3 Qd2 e4 Qd1 Bg4 hxg4 Qe5 fxe5 Ke7 Nh3 Kd8 Ng1 Ke8 Kd2 Ke7 b4 Ke6 g5 Kf5 e3 a5 b5 h5 g6 d5 e6 a3 b6 f6 b7 d4 g7 h4 e7 d3 e8Q a2 c6 h3 c7 h2 c8Q+ Nd7 b8N Ra7 Nc6 Nh6 g8Q Ng4 Nd8 Nf2 Ne2 Rh5 Nbc3 Ba3 Qgf8 Kg4 Nb5 f5 c3 f4 Ned4+ f3 Qc6 Be7 Ba3 Nf6 Bb4 Nd5 Qb1 Rf5 Qb6 Rb7 Na7 a4 Qbb5 Rd7 Kc1 d2+ Kc2 Bd6 Bc4 Rdf7 Qh8 Bb8 Qef8 Bf4 Rc1 h1Q Bb3 Nf6 Bd5 Qe1 Ba8 Nd5 c4 Qf1 Rd1 Qe1 Qc1 Qf1 Rb1 a1B Rb3 Bb2 Qb1 Ba3 Rd3 Qe2 Rh1 Qe1 Rh5 R5f6 Re5 Rf5 N4e6 Nc3 Rd7 Nd5 Nd4 Qf1 Rde7 Qe1 Qc1 Qf1 Re8 d1Q+ Kb1 Qde1 Kc2 Rb7 Qb2 Rbf7 Qb1 Qee2+
2k1b2q/5n1R/NPp3qp/RN3n1B/RB1P1K1p/1rQ2Q2/1P1b1N1p/3r2N1 w - - 0 1 illegal: Other
5b2/2B1q1p1/P1b3Nr/1R1BN2P/PNn2K2/2nrQp2/R1ppR3/QNk3q1 w - - 0 1 illegal: No proof kernel
4R1q1/rnPk1KpR/2qp4/3n1b1Q/P1pPp3/1rBQB3/Q2Q1b2/4NN1R w - - 0 1 illegal: No proof kernel
n4B1N/bp6/Qp1Qr2q/n2K2P1/5P1N/1BRQp1Rq/3p1PN1/1N1r2kb w - - 0 1 legal: proof: h4 c5 d4 f5 dxc5 g5 hxg5 f4 b4 f3 exf3 Nh6 b5 Ng8 b6 axb6 f4 Bh6 Ba6 Bg7 Bf1 Bf8 Kd2 Kf7 Ke3 Ke6 Kd4 Kf5 g4+ Kg6 c4 d5 a4 h5 a5 h4 c6 e6 c7 h3 a6 h2 a7 Rh4 c5 Nf6 c6 Qd7 Nf3 Rh7 Rg1 h1Q Rg3 Qh6 Ne1 Ne8 Ba3 Bd6 Bc4 Re7 Ng2 e5+ Kc3 e4 Kd4 e3 Bb3 Re5 Qd3+ Qf5 Bc5 Be6 c8Q Bg8 c7 Re6 Qd8 Bh7 c8N Nc7 Ra3 Nc6+ Kc3 d4+ Kc4 Rb8 a8Q Bg8 Qa4 Na8 Qa6 Be5 Bf8 Na5+ Kd5 Bh7 Qc3 d3 Nd6 d2 Nf7 Rc8 Qcd3 Rc1 Qd6 Rg1 Bc2 Rd1 Rc3 Bg8 Bb3 Bh7 Qc5 Bg8 Qcd4 Bb8+ Qe5 Ba7 Nh8+ Kh7 Kd4 Bf7 Qb8 Be8 Qd6 Bc6 g6+ Kg8 g5 Qfh3 g7 Bd5 Qdc4 Kh7 g8N Be4 Nf7 Kg6 Qd3 Kh5 Ne7 Bf3 Ng6 Bd5 Nfh8 Bc6 N2h4 Bh1 Rf3 Kg4 Kd5 Qg3 Ng2 Kh3 N6h4 Kh2 Qc2 Qh3 Rg3 Kg1 Qh7 Qh5 Qhd3 Qh6
b6N/PR1r4/k2rpK2/3N2R1/3p2P1/Bp1PNbbq/B1p1B2Q/rn3Q1B w - - 0 1 legal: proof: e4 a5 b4 f5 h4 g5 hxg5 fxe4 bxa5 b5 c3 Nc6 c4 b4 Bb2 Na7 Bc1 Nb5 cxb5 Bg7 Nh3 Bh6 Ng1 Bf8 Ke2 h5 Ke3 c5 Kf4 d5 Ke5 Kd7 g4 Kc7 f4 Kb7 a4 h4 f5 d4 b6 e3 f6 e2 d3 e1R+ Ne2 h3 f7 h2 a6+ Kb8 a5 c4 a7+ Kb7 a6+ Kc6 b7 Kb6 b8Q+ Bb7 g6 c3 g7 c2 Ba3 Qd7 Nc3 Ka5 Nd5 Nf6 g8B Bc6 Rb1 Rh6 Ne3 Ne4 Nc3 Nd2 Nd5 Rd6 Be2 Qe8 Rf1 h1B Rf5 Bf3 Rg5 Bg7+ Kf5 Be5 f8N Qh5 Ng6 Qh3 Nh8 Bg3 Qc1 Rh1 Qf1 Bb7 Rb3 Nb1 Bf7 Rd7 Qe5 Rad8 a8B Rd6 a7 Ka6 Rb2 R8d7 Bg8 Bf2 Qh2 Bg3 Nf6 Rg1 Ba2 Bbc6 Nfd5 e6+ Kf6 Rh1 Rb3 Bb7 Rc3 b3 Rc7 Bc6 Rb7 Nd2 Qfg2 Ra1 Qf1 Nb1 Rb5 Bh1 Ne7 Bb7 Rb4 Bc8 Be4 Bb7 Rbb5 Ba8 N7d5 Bf3 Rb7 Bg2 Qe1 Bf1 Bh1 Bg2 Qf1 Bf3
2n2Rnr/1p1p1RB1/5B2/1kq2pbQ/RN1rNp2/r4n1P/1KP2PR1/1B4Q1 w - - 0 1 illegal: No proof kernel forced: wxLB
3KQrQB/1P2n3/qpB2np1/rN2k1bQ/1P2N2R/rP2Rp2/N4p2/5Q1n w - - 0 1 illegal: No proof kernel
NQ1q2K1/1RNknp1r/6p1/R2nB3/R4p1r/1QPp1PPq/q1B2R2/N6b w - - 1 2 illegal: No possible last move
N7/2K1QRp1/2nqp2Q/1NQPP1q1/bn3pQp/4n3/2B1R1bP/r1kB2B1 w - - 1 2 illegal: No possible last move
q3b1RQ/Q1pppN2/6qB/1P1kP2B/R4Br1/1P2B2r/N3p3/1rKN2nn w - - 0 1 illegal: No proof kernel
1R2B1NQ/1rp3BK/rBnb1bQ1/2P1q3/3p1q1k/1R2Pp2/1pBN1P2/bN6 w - - 1 2 legal: proof: e4 d5 b4 a5 g4 axb4 Na3 h5 gxh5 d4 Nb1 Be6 Nc3 Nd7 Nge2 Ne5 Ba3 Bd5 exd5 Ng4 Ng1 e5 Bc1 e4 Nb1 e3 Nf3 e2 Ng1 Ne3 dxe3 Qg5 Kd2 Qd8 Kd3 Ke7 Ke4 Kf6 c4 Kg5 h4+ Kg4 a4 b5 a5 g5 d6 f6 d7 b3 a6 b2 c5 b4 h6 b3 h7 Qc8 d8N Bh6 a7 Rb8 a8B Bg7 h5 Ne7 h6 Bf8 Nf3 e1B Ra3 Bc3 Nc6 Qe8 Qd3 Rb7 Bd2 f5+ Ke5 f4 Kf6 Qh5 Qg6 Bg7+ Kf7 Rd8 h8Q Bf6 h7 Rd6 Bd3 Qh2 Bb5 Kh3 Be1 g4 Nfd2 g3 Bd3 f3 Bc2 g2 Kf8 Nc8 Kg8 Na7 Ne7 Ra6 Rg1 Qf4 Rf1 Rbb6 Bc6 g1B Be8 Bh2 Rh1 Kh4 Rf1 Bg5 Kg7 Nc6 Ng8 Be7 Rg1 Bd6 Rg5 Bg3 Rd5 Be7 Rd8 Rb7 Rb8 Qe5+ Kh6 Bf6 Qhg7 Qe7 h8B Bd6 Kh7 Qe5 Qf8 Qf4 Bg7 Qe5 Ne7 Qf4 Qh8 Qe5 Ng8 Qf4 Ra5 Qe5 Rb5 Qf4 Na3 b1Q Rb6 Qa2 Nab1 Ba1 Rb5 b2 Rb3 Rb5 Nc4 Rb7 Ba5 Qa4 Ncd2 Qc4 Bb6 Qe6 Ra8 Qee4 Rb8 Qee5
3qk2N/BRpn2n1/bpQ4N/1BPQ1QP1/qpr1bp2/1P2QB2/3R4/4nK2 w - - 0 2 illegal: No proof kernel
7N/2p1PQ1K/1p2B2r/RnP1kpp1/2b2n1r/3rN2Q/1q1PN2R/BQ1N1q2 w - - 0 1 illegal: No possible last move, all moves rejected
4b1q1/b2PRN2/Q1p2Kpn/2RB2pn/2Pr4/1B1R1N2/4NRPp/q1Q3qk w - - 0 2 legal: proof: e4 d5 exd5 b5 a4 Bh3 axb5 Bf5 b3 Bh3 Bb2 Be6 Bf6 Bc8 Bg5 f6 h4 fxg5 h5 a5 h6 g6 Be2 Ra6 Bf1 Rf6 Nh3 Rf7 Ng1 Rg7 hxg7 Qd7 Qh5 Qd6 Qd1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 h5 f4 e5 d4 h4 b4 h3 f5 c6 b6 h2 b5 a4 b7 a3 f6 a2 f7 Rh6 b6 Qe7 Nf3 Rh5 Bc4 Na6 b8R Qa7 b7 Qc5 Nc3 Rh6 Rc1 a1Q Ne2 Rh7 Bb3 Nc7 Re1 Bd7 Rd8 Nh6 g8B Qc4 b8Q Rg7 Qa8 Ne6 c3 Nf4 Qa6 Nh5 Rc2 Be7 f8R Rf7 Qc1 Rf4+ Ke3 e4 Rf5 Qb4 c4 Qb8 Rd2 Bf6 Rd3 Rg4 Rf8 Be8 Rf7 Be5 Rf1 Bf6 Rf2 Bd8 Rg7 Bb6 Bf7 Ba7 Re5 Kd7 d6 Rf4 Rc5 Qa8 Kd2 e3+ Kc2 Qd8 d5 Rd4 Rh7 Qf6 Bg8+ Qg7 Bf7 Qg8 Rg7 Kd8 d7 Ke7 d6+ Kf6 Bd5 Kf5 d8N Kg4 d7 Qe6 Nc3 Kg3 Re7 Qg8 Nf7 e2 Kd2 e1Q+ Kc2 Qg1 Kd2 Rf4 Ke3 Rf5 Ke4 Rf4+ Ke5 Rh4 Ra2 Rd4 Ne2+ Kf2 Ke6 Qd1 Nc3+ Kf1 Rad2 Ng3 Kf6 Qe1 N3e5 Kg1 Nf3+ Kh1 Rf2 Qg1 Ne2 Nh5+
1q1n2b1/k3rRb1/4BQqp/1pP3Q1/p2r2Q1/R1p2Rb1/1P1N1RP1/1K4BN w - - 0 1 illegal: No proof kernel
2b4K/1ppp2Q1/2p5/n1q1PBR1/B1qrN2k/P2PR1bN/2Q1N3/B3qrB1 w - - 0 1 illegal: Other
Nn1N1B2/3p1p2/Pb1q4/B1R4p/2K2P1b/BBQ1p1N1/1rRQPb1k/nb6 w - - 1 2 illegal: No proof kernel
RBb1RQB1/3PQ3/5qpN/Qp3R2/2b1pPP1/1NK1rrb1/p2nQ3/1k4b1 w - - 0 1 illegal: No possible last move
3Q2rN/1P1pQ1b1/p2pR1q1/4Nk1B/2Q1nPpB/2NR2r1/Pb3N2/b2b3K w - - 0 1 illegal: No proof kernel
rb2B2K/1pQp1P1R/r2B2R1/qQ2r1N1/P5k1/2B1Q2n/pPr1n1p1/2N2Q2 w - - 0 1 illegal: No proof kernel forced: wxLB
1Q1r1R2/2pN1qr1/1qPQKP2/N5Bp/kp1Q1qr1/n4pRP/N7/b5QB w - - 0 1 legal: proof: d4 f5 g4 e5 dxe5 b6 e4 Nc6 e6 Nd4 f3 f4 b4 Nf5 gxf5 Bb7 e5 Be4 fxe4 a5 Qd4 axb4 Qd6 Qb8 Qd1 Qd8 Kd2 d5 Kd3 g5 Kd4 h5 c4 f3 a4 g4 f6 g3 e7 Kd7 e8Q+ Kc8 c5 Kb7 h3 b5 e6 Ka6 Ke5 Ka5 c6 b3 e7 g2 Nc3 b4 Na2 b2 Bg5 b1Q Ke6 d4 e5 d3 Ne2 g1Q Bg2 d2 Qg6 Nh6 e8Q Ra6 Nd4 Rb6 Qe7 Qh2 Qd6 Nf5 Rg1 Rh7 Bh1 Rb8 Rg3 Ne3 Qg8 Qg6 Nb3+ Ka6 a5 Kb5 a6 Nc4 a7 Na3 a8N Rg7 Qg1 d1R Na5 Ka4 Qgd4 Rg1 Rd1 Qd2 Ra1 Qf4 Nb6+ Kb5 Nd7 Ka4 Re1 Qc8 Rd1 Qb7 Re1 Qe8+ Kd5 Nc4 Qge6 Rf7 Rg4 Bh6 Bh4 Qe3 Rg5 Rg3 Qeg4 Na3 Rg8 Qg5 Rg1 Rd8 Rf8 Rg7 Rg2 Qc1 Rg1 Bd2 Bg5 Qg6 Rg2 Kb5 Qg1 Ka4 Q4d4 Rg4 Rg3 Bc3 e6 Rc8 e7 Ba1 e8Q Qf4 Qd8 Qb6 Ke6 Rb8 Qc8 Ra8 Qb7 Rd8 Qb8 Qf7+
5BR1/K1r3N1/p1p1R3/4p1nP/Pp1nPQQ1/k2p1QN1/3Bbr2/qQ4Rb w - - 0 1 illegal: No proof kernel
RrQb2rQ/RKBB3B/2N2p1p/1n4P1/1P1n2p1/pk1N4/p5rP/2q1BN2 w - - 0 1 illegal: No possible last move
1k6/N4Bp1/2pN4/3Q1q1R/KPPrR3/3bpnPp/1QBp2rB/qBN2n2 w - - 0 2 illegal: No possible last move, all moves rejected
6nk/1p2p2p/4Q1p1/2NB4/bKqP2Np/1N1NRQRq/1b1PP3/1nB1r1B1 w - - 0 1 illegal: Other
5RBn/n1p3Q1/bpPRn3/3p2q1/2N1Pq1b/B3Q2p/3PpB2/K1Q1BN1k w - - 0 1 illegal: No proof kernel
1R1BKQ2/n1P3pp/7Q/1q2p3/B2q1Nk1/pQ1pP1nr/1NRr2nP/Q2R4 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 Nh6 f5 Ng8 f6 Qb6 Bg5 Qc7 Bc1 Qd8 Nd2 e6 Nc4 Bb7 Na3 Bf3 Nb1 Be7 fxe7 f5 g4 f4 Qd2 Be4 Qd1 Bf5 gxf5 Kf7 Kd2 Kf6 Kd3 Kg5 Ke4 d5+ Ke5 a5 e8Q d3 b4 a4 c4 d4 c5 a3 b6 d2 c6 f3 c7 f2 f6 Ne7 b5 Ng8 b7 Qe7 f7 Kg4 f8Q Qb4 b6 Kh4 Ra2 Qe7 Qc6 Qd8 Nh3 Nd7+ Kd6 e5 b8R Ngf6 b7 Nh5 Nc3 Kg4 Rc2 Ng3 Na4 Ra6 Nb2 Nb6+ Ke6 Qh4 Kf7 Nc8 Qh6 Na7 Ke8 Ra4 Bg2 f1Q Bc6 Ra6 Qe1 d1N Bg5 Ne3 Nf4 Ng2 e3 Qb5 Qa1 d3 Bd8 Ra4 Ne6 Rf4 Rb1 Rf2 Nf4 Rd2 Re1 Qf6 Rd1 Qd6 Ra8 Qd4 b8Q Qb3 Ba4 Qb5+ Ke7 Rg8 Qb7 Rh8 Rb8 Rg8 Qd5 Rh8 Qb3 Rg8 Qff7 Rf8 Qe8 Rf5 Qf8 Rh5 Kf7 Rh3 Ke7 Qbc4 Ke8 Qb5+
2BB1r1k/1N5p/1nPRpNQP/1B2p1rK/Rr3bQp/Rp2rn2/1P6/6B1 w - - 0 1 illegal: Other
k1BK3b/pRpR1nrp/n3R1p1/2QNP2P/P2B1b2/rp2BQ1B/5p2/5N2 w - - 1 2 illegal: No proof kernel
1k1rQ3/4p3/2Bp1Ppn/3NN2p/q1pQ1K2/b1P2p2/3PBBq1/RnQRQ3 w - - 0 1 illegal: No proof kernel
3N1R2/Q1Nrpq2/n3Pk2/3BN1pK/3Pn1PN/B1BRnbr1/1q6/3Qbq1b w - - 0 1 illegal: No possible last move, all moves rejected
1k3BQb/4rR2/p3NPb1/PnQq4/1p1qN1n1/1P1Q2r1/B1rB1Q1K/2qR2n1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 g4 Kd7 d4 b5 a4 e5 f4 c5 Kf2 Kc7 Kg2 h5 f6 a6 b3 b4 g5 e4 f5 e3 f7 e2 f6 e1R a5 h3+ Kh2 h4 g6 c4 g7 c3 Ne2 c2 Bd2 c1Q Nbc3 Nh6 g8Q Nc6 d6+ Kb8 d5 Bf5 d7 Nd4 d6 Bg6 Bg2 Bg7 f8B Nb5 Nd4 Re7 Qc2 Qb6 Qd5 Rg8 Ne6 Bh8 Ne4 Qd4 Qdc5 Ra7 Qa2 Rc7 d8Q+ Rc8 d7 Rgg7 Rd1 Ng4+ Kh1 h2 Bf3 Qcc4 Rac1 Qcd5 Be2 Rg8 Bd3 Rgg7 Kg2 h1N Bb1 Ng3 Qe8 Rg8 d8Q Ne2 Qb2 Rgg7 Ba2 h3+ Kh1 h2 Qf7 Bf5 Qg8 Ng1 Rc3 Rg5 Rh3 Rgg7 Rh7 Bg6 Kg2 h1Q+ Kg3 Bf5 Qbc2 Rg5 Rf7 Rg7 Qd3 Bg6 Qdd6+ Rcc7 Qf4 Qh6 Qf2 Rc8 Be1 Qc1 Bd2 Qdb2 Qcd4 Rc2 Qc5 Qbd4 Kg2 Rh7 Kg3 Rh3+ Kg2 Rg3+ Kh1 Ne3 Kh2 Ng4+
k2r4/PrqN1B2/2N2Rnr/RN1n3n/3pB1Qp/3N3P/1q1P3Q/bb1KB1b1 w - - 0 1 illegal: No proof kernel
b1N1RQ1N/N1q3qR/2B4b/pp1KnQq1/P2B1b2/1Pr5/BP6/nrk1Bn2 w - - 0 1 illegal: No proof kernel
b2bRR2/p1p4k/P1B1brnr/2Bn4/qnP1BP2/1QN1N2N/2qQ1K2/2q2N2 w - - 0 1 illegal: No proof kernel
3N2k1/1q1Qpnp1/B1q1Pn2/4bQNN/R4R2/rP2KrPb/2q5/2N1bBBn w - - 0 1 illegal: No proof kernel forced: wxDB
qk5b/pN2RnK1/2Rr2N1/PN2rB2/QnQ1p2Q/1P1bP3/n3b3/Bb2Q1b1 w - - 0 1 illegal: No possible last move
n4b2/RK4pp/4b1Pb/nB3R2/2Qr3n/1nQ1Q2P/PB2rBNN/qk1r3Q w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 g4 e6 f4 b3 g5 b2 g6 c6 h3 b4 f6 b3 f7 Qg5 f5 Nh6 Na3 b1R f6 b2 Nc2 c5+ Kc4 Ke5 Kb5 Ke4 Kb6 c4 d4 c3 d6 e5 d7 Qh5 d8B Ra4 d5 Nc6 d6 Rd4 d7 Nf5 Ne3 c2 Nf3 Nh4 Bb5 Qg5 Qf1 Qg1 Ng2 Rg8 Be3 c1N Nh2 Nb3 Qc4 Rd1 Rc1 b1N Bf2 N1d2 Rc3 Qe1 Rf1 Rh8 Rg3 Rg8 Qc3 Nc4+ Kc7 Rh8 Rf3 Nb6 Rf5 Rg8 Be7 Rh8 d8Q Be6 Ba3 Na8+ Kb7 Rg8 Qc4 Qc3 Qa5 Qa1 Bb2 Rh8 Qc1 Rg8 Ba4 Kd3 Qe3+ Kc2 Qac3+ Kb1 Bb5 e4 Qc4 Bb4 f8Q Rh8 Qe7 Re8 Qec3 e3 f7 e2 f8Q e1B Qg5 Bd2 Qge3 Bc1 Qf6 Bf8 Qd8 Re1 Qdd5 Re2 Rd1 Rd8 Qdf3 Re4 Rd7 Rd4 Ka6 Rd1 Ra7 R8d4 Kb7 Bd2 Ne1 Bc1 Qh1 Bd2 Ng2 Bc1 Qf3 Bh6 Qfe3 Nca5+
8/4n2r/b1k1Bpp1/Rn3P1R/n3PNKQ/N2QrNB1/1nNq2Pb/r4Qb1 w - - 0 1 illegal: No proof kernel
k2bR3/2q2Bn1/p1bq1n2/PpNQr2R/1PK1P3/q5RB/Q3r1qN/q3B2B w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 a4 Kd7 g4 f5 d4 c5 Kd2 Kc7 Kd3 h5 e4 f3 b4 f2 a5 c4+ Kc3 a6 g6 h4 g5 f4 g7 h3 g6 b6 d6+ Kb7 d7 h2 d5 f3 d6 Nc6 Bf4 Nf6 g8B Ne7 g7 Qc7 d8Q Nf5 d7 Be7 Bg2 f1Q Qe2 f2 Be6 Qd1 g8B f1Q Bg3 Ng7 Qa2 Qdd6 Bgf7 Rh3 Bf3 Qg2 Be1 Kb8 Qg8 Bd8 Nd2 Bb7 Nb3 Bc6 Nc5 Rh5 Bh3 Re5 Rd1 Ka7 Rd5 Rc8 Rd3 Ka8 Re3 Qf8 Kd4 c3 Kc4 c2 Rd3 c1Q+ Rc3 Be7 d8R Qa3 Re8 Bd8 Re3 Qfd6 Rb3 Qgd2 Bfg2 Qd1 Rg3 Qb1 Nf3 Qa1 Rg1 h1Q Nh2 Ba4 Rf1 Bc6 Rf5 Qg1 Bh1 Qg2 Rfg5 Qad1 Na4 Qb7 Bd5 Qa1 Rh5 Rc7 Qe6 Rd7 Nc3 Qf8 Qg8 Qc7 Na4 Rd6 Bde6 Rd2 Nc5 Qfd6 Qf7 Re2 Qd7 Qf8 Qd5 Qfd6 Bf7 b5#
kb5N/1p4r1/5Qb1/NPKR1q1N/2pr2P1/b1PnBR2/1B4B1/1QnbbBq1 w - - 0 1 illegal: No proof kernel
1q2n1b1/N2Rb2P/1k1rNB2/1p1bQ2r/R1p5/1PPN4/BQ3bB1/Nqnb3K w - - 0 1 illegal: No proof kernel
2b1bb2/Qq3k2/3Qppr1/K1qNBb2/3RPP1B/P2Rn1nb/B4N2/r2R2B1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 Ra5 Rh5 Ra3 Rh1 Ra8 f4 b5 g4 c5 d4 h5 Kd2 c4 e4 b3 Kc3 h4 Kb4 b2 d6 c3 g6 c2 g7 h3 g5 h2 d5 Qb6 g6 Rh6 Nh3 Nf6 g8Q Nbd7 g7 Nh5 Be3 c1Q Bg1 Ng3 Bc4 Ne5 Nc3 b1B Qh7 Rg6 g8R Ng4 Nf2 Qb7 Qg7 Ne3 d7+ Kd8 Qgd4 Bc2 Qa7 Ba4 Ka5 b4 Rb1 e6 Rb3 Ke7 d8B+ Ke8 Bh4 f6 d6 Kf7 Bd5 Be8 d7 Qc2 Ra3 b3 d8B b2 Bc7 b1B Be5 Qc1 Ra4 Bd3 Rd4 Be2 Bc4 Bg4 Nd5 Bf5 a3 Rb8 Ba2 Qc4 Qa4 Qc1 Qc6 Qc5+ Ka4 Qbe7 Rh8 Rb1 Rh5 Qb7 Rg5 Ngf1 Rg3 Ra1 Rf3 Ng3 Qd7+ Qe7 Qc6 Qd6 Ka5 Qc5+ Ka4 Qc2+ Ka5 Ng4 Rfd3 Ne3 Qd6 Qc6 Nd1 Qc2 Bf2 Qc1 Rf1 h1B Bg1 Bg2 Nf2 Bgh3 Rfd1 Qc5+
Kn2B1kn/1n2qqrb/B1R4n/Bp3p2/QP2N3/RNP2nNB/5P2/Qr4b1 w - - 0 1 illegal: No proof kernel
8/p3N1nN/P2b2bk/B1PRqBn1/R3q1nr/1Qnp4/3PNrK1/NQ2qR2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 bxc5 Qb6 Bb2 Qc7 Bc1 Qd8 c4 Kf7 f4 Kg7 Kf2 b5 a4 d5 g4 h5 c6 e5 c5 d4 f6+ Kh6 a5 h3 c7 h4 f5 b4 a6 h2 f7 h3 f6 e4 Ra3 e3+ Kg3 e2 Ra1 e1N Ne2 b3 Rg1 h1Q Bb2 d3 Na3 h2 Nc2 Ne7 Qb1 Qe8 Bc3 b2 Ba5 Nd7 Bh3 Qe4 Rf1 h1Q Ra4 Nf3 Na1 Ng5 Kf2 Bb7 c8N Nf5 Ne7 Ng7 Kg3 Bc6 Rf5 Rb8 Rd5 Qe1+ Kh2 Qe5+ Kg2 Bb7 Nc8 Bd6 f8N Bc6 f7 Nf6 Nh7 Bd7 f8R Bf5 Ne7 Bg6 Rf7 Rb4 Rf8 Rf4 Rf7 Rf3 Rf8 Qb8 Rf7 Qb4 Rf8 Qbe4 Rf7 N5e6 g5+ Kh5 Bf5 Ng4 Qa2 b1N Qb2 Nc3 Qb1 Rb8 Rf6 Rb4 Rf8 Be8 g6 Ng5 Rf6 Kh6 Rf8 Nh5 g7 Bg6 g8Q Ng7 Qe6 Qe3 Rf6 Rbf4 Rf7 Q3e4 Rf8 Nh2 Qg8 Rh4 Rf6 Ng4 Qgb8 Kh5 Q8b3 Kh6 Be6 Rfh3+ Rf3 Qe3 Rf1 Rf3 Bc8 Q3e4 Bf5 Rf2+
1q1qk1rQ/K2b2b1/3n3p/B1Qnr3/1pQ3NP/1PRb2Nn/1QRnP3/1R1B4 w - - 0 1 illegal: No proof kernel
3Q1R2/1n1bnPrR/N5Bp/1RBB2r1/1p1Bb2P/kP2r2K/3Nbq2/1Qb3q1 w - - 0 1 illegal: No possible last move
1QnB1kN1/1P2q3/KB1bBbRp/1bN3n1/QN4q1/b4p1P/5PB1/1r1r1Rr1 w - - 0 1 illegal: No proof kernel
3q2R1/1brN2RR/2b3QK/1qBBN1p1/1Q1p4/4nqP1/b2PP2b/B2n1Rrk w - - 0 1 illegal: No proof kernel
1BNRR1rb/2q3p1/1B4Qn/2n1QPP1/k1pnq3/1b2Q1r1/2PNnQK1/3r3B w - - 0 1 illegal: Other
RrbR2KQ/prN3Q1/2P5/k3n3/Prq3BN/B1p3N1/rnP2RN1/qn4b1 w - - 0 1 illegal: No proof kernel
q1bNbn2/2p2B1k/nNqb1bRr/2P3R1/pN1Kq2B/1N1P4/PQ3Q2/2R2r2 w - - 0 1 illegal: No possible last move
B5K1/p2BB2p/n1P1Nn2/P1Nr2bN/qr5P/Rq1r2B1/qQb5/1QRq3k w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f5 g4 fxg4 bxc5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 b5 a4 g5 h4 g3 e4+ Kg6 f4 g4 c4 Kh5 e6 d6 e7 g2 e8N b4 e5 b3 e6 b2 c6 Qb6 c5 Qb4 f5 Qf4 a5 Bd7 f6 Bh6 e7 Na6 c7 Rd8 c8B Qa4 f7 Bg5 f8B Bf5 Nd2 b1Q Bd7 Bc2 Ke6 d5 Kf7 d4 Ra3 d3 Nc7 Qa2+ Nb3 d2 e8Q Nf6 Ne2 g1Q Bg2 g3 Be7 Qe3 Ba8 g2 c6 g1Q Ne6 Kg4 Nbc5 Kf3 Ng3+ Kg2 Nh5 Qeb3 Qf8 Rb8 Qg7 Rhd8 Qe1 d1R Bf4 Qf1 Bg3 Rd5 Qb1 Rb4 Qh8 Qfd3 Rc1 Qd1 Qg7 Kh1 Qh8 Ne8 Qhb2 Nf6 Kg7 Rdb8 Kf7 Rbd4 Kg7 Rbb4 Kf7 Rd3 Kf8 Ng4 Kg8 Nf6+
R2N1bb1/5Npn/NQ1R3q/4NB1p/B6K/nr1rPnPP/nB2b1k1/3Q3q w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 Kf2 Ke7 Kg3 Ke6 b4 Kd5 c4+ Ke4 e6 h5 e7 f5 e8B a5 e3 d5 c5 a4 h3 f4+ Kh2 a3 b6 f3 Kg3 d3 b7 d4 c6 f2 b5 a2 b6 d2 c7 d3 Qe1 d1Q Bb2 d2 Nf3 Ra3 Nd4 Nd7 b8Q Qf6 b7 Ne5 Nc6 Nf3 Nd8 Be6 c8N Rb3 Ba4 Qh6 Na3 Nf6 Nc4 Bg8 Ne5 Nh7 Rg1 Qc1 Qd1 Rd3 Be2 f1B Qd6 Rb3 b8N Qc6 Beb5 Be2 Na6 Qc1 Qb6 Qb1 Qe1 d1N Bd7 Nc3 Qd2 Qc1 Rd1 Qb1 Qe1 Qc1 Rd6 Qb1 Qd2 Qh1 Rb1 a1N Qd1 Nc2 Ra1 Na3 Be6 Nh2 Kh4 Na2 g3 Rd3 Ndf7 Rb3 Ne7 Rd3 N7c6 Rb3 Nd3 Kf3 Nde5+ Kg2 Ncd8 Nc1 Bb5 Nc4 Rd5 Ba3 Nc5 Bb4 Ra3 Na2 Ra8 Na3 Na6 Bd6 Ndc6 Bc5 Nd6 Bf7 Bf5 Rd8 Ba4 Bg8 Ndf7 Bf8 Rd4 Rd6 Ncd8 Rd7 Re4 Rd2 Rd4 Rdd3 Rd6 Nf3+
bQ1rbN2/1n2B1nb/N1NQR2b/2p1K1p1/k2N2B1/q2R2P1/Q1Pr2P1/5bb1 w - - 0 1 illegal: No proof kernel
r5R1/n1B2p2/1rQ2P1k/7n/Kbp2n1R/1PPQqN2/brB1r1Qn/N3RQ2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 Kd2 a5 Kc3 c5 Kb3 d5 f4 h5 g4 d4 e4 a4+ Ka3 d3 g5 d2 b6 h3 f5 h2 e6 h4 e5 h3 c3 Qd4 g6 Nc6 b7 Qe3 b8Q Nh6 g7 Na7 g8Q Ng4 e7 Rh6 Qb6 Be6 Bg2 Ba2 b3 c4 Qd4 Rb6 Qf1 d1N Be4 Ndf2 Bc2 Nd3 Nf3 Nf4 Qg7 Rab8 Qdd3 Ra8 Rg1 h1R f6 Rh2 Rh1 Re2 Qg8 Nh2 Qgg2 Nb5+ Kb4 a3 Bd2 Na7+ Ka4 Re6 Be1 Rd6 Bg3 Rb6 Nd4 Kd7 e8R Bb4 e6+ Kd6 e7 Ke5 Nf3+ Ke6 Bd1 Rb2 Rg8 Re2 Qd4 Kf5 e8Q Rb2 Qc6 Re2 Rb8 Kg6 Qd3+ Kh6 Bc2 Ne6 Qc5 Ng4 Qff2 h2 Bc7 Nf4 Rf8 Qd2 Bd1 Qe3 Rg1 h1N Rg8 Ng3 Qc6 Ngh5 Qff1 Ng7 Rh1+ Ngh5 Rh4 Nh2 Nbd2 Bb1 Nd4 a2 N2f3 Bc2 Rc1 Bb1 Nc2 a1R+ Na3 Ba2 Nc2 Rb1 Na1 Ba5 Bc2 Bb4 Re1 Rb2
2B1nr1b/QN2k3/q4n2/Q1K3r1/6pR/1PR2Npp/N1rBnQPP/Qb1b4 w - - 0 1 illegal: No proof kernel
1rnb1q1k/2R1rb2/Pq2B2n/5N1Q/1p3Nr1/1P1pBK1N/1pNP4/R1Q3Rb w - - 0 1 illegal: No proof kernel
3q1K2/N2BpRB1/r6P/b4Q2/n1pQ3Q/1pP3q1/rP1qb2N/1nRQr1Bk w - - 0 1 illegal: No proof kernel
1kNqb2B/p4qBQ/P2nnqR1/3p2BP/1r1P3Q/2K2B2/1bRN1p1r/1R4n1 w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 c4 bxc4 gxh5 Bd6 Bh3 Ba3 Bf1 Bf8 e4 f5 a4 c5 d4 d5 Kd2 Kd7 b4 Kc7 h4 g5 h6 f4 e6 g4 e7 f3 e8R g3 e5 g2 e6 f2 b5 Kb7 h7 Ne7 b6 Bg7 a5 Bd7 a6+ Kc8 h5 Nf5 e7 Rg8 h8B Nc6 b7+ Kb8 Kc3 Bf8 Qc2 Nd6 Nf3 g1N Nfd2 Rg2 Qh7 Rh2 Bg2 Bh6 Rf8 Be8 Na3 Be3 Rg8 Bg5 Kc2 c3 Ra2 c4 Rg6 Bh6 Bf3 Bf8 Kb1 c2+ Kb2 c3+ Kb3 Bh6 Nac4 Bg5 Nb6 Bf4 Ba3 c1Q Nc8 c2 Kc3 Qe1 Bc5 c1Q+ Rc2 Qe6 Ba3 Qce1 Bc1 Qf6 Bg7 Qee6 Bh8 Bd7 e8Q Qef7 Qe4 Bh6 Qh4 Be8 Nc4 Bg5 Bf4 Bh6 Be5 Bc1 Nd2 Qdd7 Bf4 Nd8 Bg5 Ne6 Bg7 Qdd8 Bh8 Kc7 b8B+ Kd7 Bc7 Rb8 Bg7 Rb4 Bb8 Nc4 Bbf4 Nd6 Be5 Kc7 Bh8 Kb8 Bg7 Nh3 Rd1 Ba3 Rb1 Ng1 Bh8 Qf4 Beg7 Q4f6 Qg8 Bc1 Qh7 Bb2+
r2RBqQB/2N1n3/R3q1bq/R2pQNb1/pB1p1r1P/P2P4/1n3k1n/1K1B4 w - - 0 1 illegal: No proof kernel
1n2r1bq/6b1/1B2kqpN/2P2RbB/1Kr3PQ/R1p3Rp/Q3Nq1P/1n1Q1R2 w - - 0 1 illegal: No possible last move, all moves rejected
bN1Qr1R1/N1R4p/1q1n1n1P/6Br/1Pb1p1nB/1p1B1QBQ/k2qP3/b5K1 w - - 0 1 illegal: No proof kernel
2qR1rn1/bQ1K1P1B/1Q2BBn1/1p4N1/1PR1pN1k/3n1Qp1/rb1qP3/5bQ1 w - - 0 1 illegal: No proof kernel
1Qq1N1R1/pQP2r2/2q3R1/P1p5/p1P1QQ2/2b1NBr1/b1RBK1rn/kn5q w - - 0 1 illegal: No proof kernel
2B1NN2/1K1B1rq1/2Q3qB/p1n1pR1p/P2R2b1/3PP3/1rrn3b/kN1qQB2 w - - 0 1 illegal: No proof kernel
N2b4/3KNR1q/RRB4p/4prP1/1nn1R2P/1q1QP3/4p1Qb/1rkNr1Bb w - - 0 1 illegal: No proof kernel
2Q5/Q1B1n1qB/bQN5/4p2k/q2b2bp/2RRnKpP/4PNRP/2nR1rr1 w - - 0 1 illegal: No proof kernel
K5Q1/Pb2B1np/NrRq1bQ1/7P/3pQ3/kB2p1Nr/2rPnN2/bQRq4 w - - 0 1 illegal: No proof kernel
2B2N1R/Q1p1QN1K/3r2q1/5prP/2P1n2b/1Q1Rpq2/q1bBPn2/1Q2b1Nk w - - 0 1 illegal: No proof kernel
nrb5/pRnBpKB1/2N1r1Q1/P1N2B1P/4Qqpn/3N4/q4bPk/R4qN1 w - - 0 1 illegal: No proof kernel
2q1BN2/br1Bp2n/b3P1Np/3NR3/K3nq1q/3P1Qpk/bR2r2P/N1Q1B3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 gxf5 Ra4 Nh3 Ra5 Ng1 Ra8 f4 Kf7 e4 Kf6 a4 b5 d6 g5 a5 c5 d7 h6 d3 g4 Kd2 g3 Kc2 c4 e5+ Kf7 f6 Ke6 f7 Kf5 a6 c3 Kb3 c2 a7 Rh7 Ne2 Kg4 f5 Ba6 f6 Bg7 f8N Qc8 d8Q Nd7 f7 Ndf6 Qd5 Ne4 Bd2 c1Q Ng6 Rh8 f8N Ngf6 Nbc3 Nh7 Be1 Qf4 Ra2 Rg8 e6 Bd4 Bg2 Bc5 Bf3+ Kh3 Nd4 Rb8 a8B Rb7 Rg1 Ba7 Bh5 Rg7 Qd2 Rf7 Nc2 Qh4 Ra5 Rf2 Na1 Re2 Qc1 Qf4 Ra2 Qh4 Rb2 Qf4 Ka2 b3+ Ka3 b4+ Ka4 Qh4 Qc6 Qf4 Nd5 Qh4 Rc2 b2 Rd2 b1B Rb2 b3 Rf1 Rg2 Rf5 Re2 Re5 Qf4 Qd1 Ba2 Qcc1 Rd2 Qf3 Re2 Nh8 Qh4 Be8 Qf4 Nhg6 Qh4 Rc2 b2 Rd2 b1Q Rb2 Rb3 Bac6 Rb7 Bcd7 Qbc2+ Rb3 Qd2 Rb2 Qdf4
Bn6/q1NrBQn1/P3p1bp/1bR1PBQB/1np1K2R/2R3b1/2q4P/3r2Nk w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 Kf2 Kd7 Ke3 Kd6 d4 f5 g4 c5 a4 b5 g6 b3 a5 c4 g5 e6 g7 b4 g6 f4+ Ke4 h6 a6 f3 Bg5 b2 Nc3 b1N Bg2 b3 Qf1 b2 Ra5 f2 Rc5 Ne7 g8B Rh7 g7 Qc7 Bf7 Ra7 g8B Nf5 Bh5 Rd7 Bh7 Ng7 Bf5 Na3 e3 Nc2 Bf6 Rd8 Nb5+ Kd7 d6 b1Q d5 Nb4+ Ke5 Qa2 e4 Qc2 Be7 Bb7 Kd4 Bc6 Ke5 Qb6 Nc7 Bb5 Kd4 Rb7 e5 Qa7 Qd1 f1B Qf3 Bd3 Qf4 Ne8 Qg5 Bg7 Qf6 Bh8 Qf7 Bf6 Ke3 Bh4 Bgf3 Bg3 Bg2 N8c6 Kf3 Kc8 d7+ Kb8 d6 Ng7 Bfh3 Bg6 Bf5 Qa8 Ke3 Ka7 Bge4 Kb6 Bg2 Qa7 Bge4 Rf8 d8Q Nb8 d7 Rh8 Qdg8 Rh7 d8R Rh8 Ne8 Rd7 Nc7 Rd1 Rd4 Rh7 Rcd5 Kc6 Bg2 Qa8 Rh4 Qa7+ Kf3 Ba4 Ra5 Bb5 Qd8 Rh8 Qd2 Rd8 Qg5 R8d7 Ne2 R1d2 Rc1 Rd1 Ng1 Qd2 Na8 Kd5 Rc3 Qb2 Kg4+ Kd4 Nc7 Qc2 Ba8 Rd3 Qgf6 Ke3 Qg5+ Kf2 Nf3 Kg2 Ng1+ Bc6 Rb5 R3d5 Rc5 Kh1 Kf3 Ba4 Ke3 Bb5 Kf3 Rd3+ Ke4 Rd1+
1BQ1Bkq1/3PR1RB/4p1b1/1q4br/1K1prp2/4PNQb/2RPBN1n/n4q2 w - - 0 1 illegal: No proof kernel
2N3n1/1p2B1nK/5p1P/Nkb2b1B/2pQ2RQ/2P3Nn/QrRQ1Pr1/2q1q1r1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 Qh4 Ba3 Qf6 Bc1 Qd8 Kd2 g5 Kd3 c5 Ke4 b3 Kf5 d5+ e6 f6 Kg6 c4 a4 d4 h4 g4 e4 b2 a5 d3 c3 g3 e7 Kd7 e8Q+ Kd6 a6 Kc5 h6 d2 a7 g2 h5 Qa5 e5 Qa4 e6 Rh7 e7 Rf7 h7 Nd7 h8Q Nb6 Qd8 Qb4 e8N Nd7 Ne2 g1Q+ Ng3 Qb3 Ra2 Qa3 Rh4 Kb5 Rg4 Bc5 Be2 Nb6 Qd4 Nd5 Bf3 Rb8 a8Q Qe1 Qa7 Rf8 Kh7 Nf4 Be2 Nh3 Nd6+ Kc6 Qc2 d1N Nd2 b1R Nb3 Rb2 Qcd2 Ne3 Qa8 Be6 Nc8 Nf5 Na5+ Kb5 Qa7 Ng7 Bd1 Rb3 Rc2 Qa1 Ba3 Rb2 Be2 Qac1 Bb4 Bb6 Be7 Bc5 Nc6 Rd8 Qa2 Rd5 Na5 Rg5 h6 Rg6 Qg5 Bf5 Qh4 Ne6 Qg7 Ra8 Qf7 Ng7 Qfd5 Ra6 Qd2 Re6 Q5d4 Re3 Ne4 Rg3 Bf3 Rg1 Ng3 Nh5 Rf4 Ng7 Bh5 Rg2 Rg4 Ba3 Re4 Bc5 Nh1 Rg1 Rf4 Bd7 Re4 R6g3 Rg4 R3g2 Ng3 Bf5+
1rR2Q2/1pQ1r2p/1PN1nqP1/Bq2R2N/B4bb1/1B1b2pP/3KnNr1/2N3k1 w - - 0 1 illegal: No possible last move, all moves rejected
1Kr2b1q/p1NRPb2/3NrBBk/3Rp1qn/P2Qn3/1Bb1P3/4QpNN/6r1 w - - 0 1 illegal: No possible last move, all moves rejected
Q3br1B/1Bp2b2/4N3/p1b1Brp1/P1kqnRQ1/P1P1Q1qR/K1n1Nq2/6B1 w - - 0 1 illegal: No proof kernel
2N2B1B/1B1n1r1b/2N1Rp2/pRK4q/1p3PPb/4Q2n/PBQb1n2/1q3kNr w - - 0 1 legal: proof: e4 d5 exd5 c5 h4 g5 b4 gxh4 bxc5 Qd6 Bc4 Qb6 Bf1 Qd8 Ke2 Kd7 Kd3 b5 Kd4 a5 f4 h5 g4 e5+ Kd3 b4 Kc4 h3 d4 h4 c6+ Kd6 c3 e4 c7 h2 Qd2 h3 Bg2 e3 Bb2 e2 Na3 e1B Qe3 Bd2 Nc2 Nh6 Re1 Bf5 c8Q Qg5 Kb5 Ra7 c4 Bg6 Qf5 Bh7 c5+ Kc7 c6 Kd6 c7 Nd7 Qfe4 Be7 Qf5 Ne5 c8N+ Kc7 Qg6 Qh5 d6+ Kd7 d5 Bh4 Kc5 f6 Nd4 Rc7+ Nc6 Nhf7 Qc2 Ng5 Be4 Ke8 d7+ Kf7 d6 Ke6 d8B Rf7 d7 Qh6 Kb6 Qh5 Bf5+ Kd5 Be7 Qh6 d8B Qh5 Qd1 Kc4 Be4 Qg6 Bf3 Qc2 Bf8 Qb1 Qf2 Kd3 Kc5 Ng6 Re6 Ne5 Qg3 Ke3 Bg7 Kd3 Ne2 Ke3 Re1 h1Q Qc2 h2 Be7 Nh3 Bd6 Qf1 Rc1 h1N Bdf8 N1f2 Ng1 Qd3 Rd1 Qf5 Rc1 Qh5 Rd1 Bc1 Rd7 Bd2 Rb7 Bg8 Rb5 Rh6 Qc1 Bh7 Bh8 Kd3 Qh2 Ke3 N6e7 Kd3 Bb7 Ke3 Nc6 Kd3 Nf3 Ke2 Qc3 Kf1 Ng1 Rg6 Qc2 Rh6 Qg3 Qf5 Nd4 Ng5 Qgc3 Bg3 Nge2 Rh1 Q3b3 Bh4 Ng1 Ngh3 Nc6 Qh5 Qe3 Nd7+
QN2RR2/1b3Qn1/1q1BpPpK/1r1p2N1/n3bB1b/1k1P2q1/2Rr2P1/1Bn4B w - - 0 1 illegal: Other
Q4B1b/1B2pb2/b7/KN1BBN1p/3p1q2/Q3Pr2/1P1P1RNn/rkq1n1Rr w - - 0 1 illegal: No proof kernel forced: bxDB
bB1k3b/1nN2Kpn/1bprrN2/1BP1q1n1/2QP3R/1Q6/2p1Q1PR/q1R3R1 w - - 0 1 illegal: Other
1r3Q2/3KnP2/bp2pn2/n1q5/1Pbb4/qp2R3/rNRRPk2/1NBQRB1B w - - 0 1 illegal: No proof kernel
1B3NR1/1br1Bp2/4q1pQ/B2q4/1n3rPp/b2PRK2/B3QPnN/kb2rN2 w - - 0 1 illegal: No proof kernel
R2Nq2Q/4pRKr/3B3p/rbPq1R2/k2n3P/bp1N1N1N/3qP3/n4BbQ w - - 0 1 illegal: No possible last move
1r3N2/1Q1nR1Qp/2bp2N1/2P1Q1B1/1pR3b1/1Bqqbq1Q/1P1n1k1P/r3N2K w - - 0 1 illegal: No possible last move, all moves rejected
2B2Q2/k1BpP1qn/nR1Pp1N1/2b2R1p/2r1B1r1/1n1b1K1P/1n3Rn1/RN1Q4 w - - 0 1 illegal: No proof kernel
1N6/1R2Q1N1/N3Nnb1/1K3Q1r/R1Pp1pn1/2rPB1nk/2BnpP2/3q1Rbn w - - 0 1 illegal: No proof kernel
3b1QbN/3QB1b1/N1r3Kn/pRpPk3/3r1Nnp/b1PR1bRR/P7/1B3q2 w - - 0 1 illegal: No proof kernel
1N6/r2n1bb1/1pP2B1r/kn1R1Bpp/1n1N4/6Pn/NPqK1QR1/n1Q1Q1N1 w - - 0 1 illegal: No proof kernel
b1nn1b2/N2r2q1/Q2P1p2/r2kpPNp/R6P/2R1bN1B/1QQ2rN1/b1B4K w - - 0 1 illegal: No proof kernel
1kN1N3/3BrppN/1B2qP2/7R/1PRQ2pb/nn1b2K1/n1r3PB/2b1n1QB w - - 0 1 illegal: Other
kr1R4/2rQ1bpQ/N1r5/1n3QP1/1R1BK1B1/nBP1bp1N/1pnqnP2/3B4 w - - 0 1 illegal: No proof kernel
1b6/2N3q1/RBB2n1R/5bQp/1k1bR3/1P2rprR/2KnbPpP/N2QBr2 w - - 0 1 illegal: No proof kernel
N1r1Q3/2P1p2R/b1K2Q2/2BpN1nN/n3P1Nb/1qRP1r1k/2BRrp2/r4n2 w - - 0 1 illegal: No proof kernel
rN1n1kb1/R2n1N2/KR1rRp2/8/1pB5/1qPp1rB1/QR1P1P1r/b2N1bQ1 w - - 0 1 illegal: No proof kernel
1B1Q3b/1Qr4p/r2N4/pPqR1Qrk/5QrN/1pN5/1PR2KbP/1n1b1n1B w - - 0 1 illegal: No proof kernel
2n1r3/1p1Q4/1PKPr2p/1B1QqRBP/1b2R1pB/1NBb1R1N/3n1qq1/5q1k w - - 0 1 illegal: Other
2nk1B2/N1rpn1p1/1NqPR3/1B2b1P1/1Q1N4/2PNqnpQ/3rb2n/R3B2K w - - 0 1 illegal: No proof kernel
1R1rk2N/1QK1r2Q/p2n1q2/Pb3r2/BpnR2rR/3q2BN/1PNPpbN1/8 w - - 0 1 illegal: No proof kernel forced: bxDB
2k1N3/1rbRq2p/2p1N3/2PN2BB/1pq1B2b/1bb2n1P/KP1n2QQ/N3rR2 w - - 0 3 illegal: No possible last move, all moves rejected
2q2Nk1/B1N1QpP1/pqRrn3/2N3b1/5Bp1/KN3bPr/Pb1n3Q/1B2Rb2 w - - 0 1 illegal: No proof kernel
1B2QqN1/1rKPp1r1/1n1N2R1/3p3p/2B1b1B1/2BqP1bR/Q1rn2RP/3rk3 w - - 0 1 illegal: No possible last move, all moves rejected
Qnb4Q/Rb1N4/1Qpp1P1b/R7/N1Q1q2n/rb1P4/B1P1pB2/1KrkqB2 w - - 0 1 illegal: No possible last move, all moves rejected
q2r2Q1/p2b1pb1/1n2QN2/rr2R1Kp/3P1NQB/r3qPQ1/P1n1R3/2RB1k2 w - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 g5 hxg5 c5 bxc5 Bf5 Qh5 Be6 Qd1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 c4+ Kd4 g4 b5 g6 h5 g5 b4 g7 b3 g6 e3 c6 e6 c5 b2 c7 e2 c6 Kd3 Nh3 Nd7 Nc3 b1R Rh2 Nh6 g8Q Nb6 g7 Bd7 c8Q Ng4 c7 Ne3 Ne4 Rb8 Nf6 e5+ Kg5 e4 f3 Nc2 Qe1 e3 Qg3 Rb3 Nf4+ Kc4 d4 Ra3 Qg4 Kc3 Rf2 e1R Be2 Qe8 Bd1 e2 Rg2 Rg1 Rf2 e1Q Re2 Rg3 Re5 Qe3 Bd2+ Kc4 Be1 Rb7 Bf2 Kc3 Rc1 Kd2 Qb8 Qd8 c8Q Rg2 Bg1 Ke1 Bf2+ Kf1 Bh4 Re2 Qc6 Ra5 Qbc7 Qa8 Qce6 Re1 Qh7 Rb8 g8R Bg7 Re8 Rg8 Re7 Rgd8 Qg8 Re2 Qc8 Rd2 Qg3 Rd3 Qeg4 Rc3 Qc6 Rca3 Qd5 Qf2 Re2 Qe3 Re5 Nc4 Qd6 Rbb5 Qde6 Nb6
1k5N/2RrQpq1/nrp1KP2/BB6/1RP3Qp/BRbn2n1/B5NP/1nq4r w - - 0 1 illegal: Other
3bb1N1/1P3rpr/N2Q1NPn/1B1Q4/Kpb4q/1n1p2QR/R2P1np1/Q1B2k2 w - - 0 1 illegal: No proof kernel
3RN1KB/n3Q1Rr/Rn5k/1NpBb3/1QP4p/n4P1P/b1r1Np1p/4r1qN w - - 0 1 illegal: No proof kernel
1kb2nK1/n1rRqb2/Rq1p1Q1p/1Bp2p1P/1B3PNN/q2R2r1/BRP5/1Q6 w - - 0 3 legal: proof: d4 e5 g4 exd4 a4 f5 g5 b5 axb5 Bd6 Be3 Be5 Bc1 Bf6 gxf6 Kf8 Nc3 Kf7 Nb1 Ke8 Kd2 g5 Kd3 c5 Kc4 a5 Kd5 a4 h4 d3 b4 g4 f4 h6 e4 a3 f7+ Ke7 b6 a2 h5 g3 e5 d2 e6 g2 b5 d6 b7 Qf8 b6 Kd8 e7+ Kd7 e8B+ Kd8 Ba3 Na6 b8R Rh7 b7 Kc7 Bc4 Ra7 Nf3 g1Q Nh4 Qfg7 f8Q Qb2 Rh3 Rg7 Rd3 Rg3 Qf6 Qe3 Nc3 Qb4 Ra8 Nb8 Ne4 Nd7 Ke6 Nf8+ Kf7 Ne7 b8R Nc6 Nf2 Qb3 Ng4 Qe7+ Kg8 Qb5 Rb1 a1Q Qc1 Qb6 Bb4 Qa3 Rb2 Rb7 Ra6 Na7 Beb5 d1B Re3 Be2 Qb1 Bf3 Ba2 Bg2 Rd3 Bd5+ Kh8 Bf7 Ra8 Bce6 Rd8 Bc8 Rd7+ Kb8 Kg7 Rc7 Kh8 Bg6 Kg8 Bf7+
1Q1rN3/3pP3/1RNP1q1p/1RB2k2/1Q2pbrR/pR2P3/Q1nb1Kq1/1n1B1b2 w - - 0 1 illegal: No proof kernel
b5Nb/2pQ1q2/2Nr4/Kpb4R/P1ppqr1n/Q1PP3B/2QR2Rn/4k1BR w - - 0 1 illegal: Other
1q4R1/pKN1R1q1/4Pk1p/2QQ1b1p/1p1n1r1P/QPn5/Bq2NB1B/Q3br2 w - - 0 1 illegal: No proof kernel
1B2Nb2/n1pQ3p/Q1BR1rp1/2P1B1PK/q1qPb2N/1N3p1r/2k2B1b/2n1R3 w - - 0 1 illegal: No possible last move, all moves rejected
r1b1B3/npr3p1/5kPQ/pP6/q2PRKqb/n3p1r1/1BR5/QNR2NBR w - - 0 1 illegal: No proof kernel
1BQ1qN2/1r2k2p/p3b2K/Pp2B1P1/4R1pR/1PB1rq2/R1B1b2n/2QnN1b1 w - - 0 1 illegal: No proof kernel
4KbRR/2Qb2Rr/4Nq1p/1b1Bp1q1/1P1BBB1P/4P3/2p1rNQp/4knn1 w - - 0 1 illegal: No possible last move, all moves rejected
1K1n1r2/1bbpq1k1/2QQ4/q3p3/Brn1p2P/2BPP1BN/1qp1NRR1/B4Q2 w - - 0 1 illegal: No proof kernel
1R2rK2/bB1Q1pnq/b1pR2p1/1qpn4/2P4B/P1k2r1R/Q1B3P1/N1NnR3 w - - 0 1 illegal: No proof kernel
3Bq1rk/3n2b1/1KB1pp2/Bp5r/BR1qNPN1/1bP2Np1/1P2Q2n/2b1Q2R w - - 0 1 illegal: No proof kernel
3r2k1/qR2B1pn/pb2p1n1/2QNR1R1/P4p1P/1q2PK1Q/3r1nBN/QQ3b2 w - - 0 1 illegal: No proof kernel
N4b2/K1n1n1p1/2Q1B1Q1/2bpBB2/Np1Nrp2/1PrB1P2/Rqq1R1P1/1n3k2 w - - 0 3 illegal: No proof kernel
1Rn2B2/1K1pnNpQ/2rB1P2/2Q1b3/N2P1pP1/2q1b1Rb/1qpr2Bk/1Q2Q3 w - - 0 1 illegal: No proof kernel
Q5nB/2nk1Bp1/1qrp4/1r4QB/1Q1pR1qR/pK3NP1/PB1Pn3/2b2bN1 w - - 0 3 illegal: No proof kernel
4Q3/4ppQ1/pn2P1B1/r1R2BRr/B4pbB/b1PNkPr1/1rR2n2/KN5q w - - 0 1 illegal: No proof kernel
8/p2nr2P/Q2pq1p1/1R3br1/1BQPBr1B/1KRQb1p1/1NQ1N1P1/1n2kr2 w - - 0 1 illegal: No proof kernel
8/b2P1B1k/2RB2q1/ppQp2Bb/1P1n1b1r/3PN2R/Rp3Q2/RbK1Nn1r w - - 0 1 illegal: No possible last move, all moves rejected
1B1r2B1/2BbRNR1/pr3Q1Q/np1k1p2/1b2nPr1/Nq2prQB/1PP5/3K4 w - - 0 1 illegal: No proof kernel
Q2R1nBN/2bR4/1nnQNp2/3R2pp/1K3r1k/2r1p2P/3Rq1PP/2Qb2Bn w - - 0 1 illegal: Other
r2b2nN/1RP2B2/rNK1n2p/1Q6/3q1ppn/Q3pk1P/bBQ1nPR1/1R2Q3 w - - 0 1 illegal: No proof kernel
2R5/2QrQQnK/p1Bpn2P/p3b3/1RNPb3/q1N1p1nk/PRn3r1/3QB3 w - - 0 1 illegal: No proof kernel
1Q2B3/2npN1bb/RQ6/qNpQBp1N/2Q2PrR/1Kbr2p1/2PP3n/1k5b w - - 0 3 legal: proof: g4 b5 f4 h5 gxh5 e5 a4 e4 axb5 Ba6 e3 Bc8 Qf3 exf3 Kd1 Ke7 h4 Kd6 b4 Kd5 h6 Ke4 h5 f5 h7 g5 h6 c5 b6 a5 b7 f2 b5 g4 b6 a4 Be2 f1B Bb2 a3 Be5 a2 Rh4 Ra5 Na3 Qe8 Nb5 Bg2 Kc1 Ra3 Kb2 Ra8 Kb3 Na6 b8Q Nc7 b7 Nf6 Bc4 Bf1 Bf7 Qd8 Ne2 Rg8 h8Q Bg7 h7 Kf3 e4 g3 Be8 Ng4 Ned4+ Kf2 Nc6 Ke2 Ne7 Nh2 Qa7 Bg2 b8Q Ba6 Qab6 Bh1 Q8b7 Rb8 Qd5 Ra8 Na7 Bd3 Nb5 Ra4 Qc4 Qa8 Qd5 Rd4 Qc4 Qa5 Qd5 Rf8 Qhg8 Rf6 h8Q Rg6 Qc4 Rg5 Qgd5 Rg4 Rc1 a1B Qf8 Bb2 Ra1 Bc3 Ra2 Qa8 Ra6 Kd1 Bf7 Be2 Ra4 Kc1 Nc6 Qc8 Bd6 Kb1 e5 Rd3 e6 Bh8 e7 Qe8 Be5 Qa8 e8N Bg7 Ne7 Rg6 Nf6 Bh5 Qfb8 Rg4 Be8 Bg6 Nh5 Bh7 Ra2 Qa6 Ra4 Qc8 Ra8 Qa6 Ra7 Qa1 Ra6 Qa5
1B1Q3n/1QPB3p/1q2rR1K/Q1p1nNbb/1p2n2n/2PB4/2BpN1kP/2r4R w - - 0 1 illegal: No possible last move, all moves rejected
4k2B/pQnrN1pb/N5pQ/nN2b2Q/4pbP1/P2BP1R1/1q5b/2nR1NK1 w - - 0 1 illegal: Other
1bq2nB1/2pnknpN/2P1pq1Q/p4rP1/3B1Qb1/R2nP1NN/R5B1/2B3K1 w - - 0 1 illegal: No proof kernel
1N1bB1q1/p1b1Q1K1/1R2BpQ1/7p/1p2BbqP/Pb3n1r/RP3Bkr/1N3N2 w - - 0 1 illegal: No possible last move
2R1n1QB/1BbpN3/2p5/n1PpB1P1/r2p1R1N/4qQrp/1rk1KN1P/1bN5 w - - 0 1 illegal: Other
1B1rr1R1/3P4/1R2N3/Nb1pRr2/1qpR1np1/QpBpKQ2/1P3nPk/1Bb5 w - - 0 1 illegal: No possible last move, all moves rejected
1Q3rQb/2Qp2p1/1pKPpRP1/1p1P2Q1/n4BR1/k4b1q/2Rq3n/r3NN1B w - - 0 1 illegal: Other
2Q4N/b7/2qRQn1p/rBNp2p1/rQ1b2K1/1b1PpRp1/kq2P1PB/3B3B w - - 0 1 illegal: Other
q3n3/R5RP/2kN1nr1/R2qP1PB/4bb2/R1KqN3/RB2Qq2/1R4qq w - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 h5 g4 a5 h4 e5 f4 exf4 gxh5 g4 Ra4 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bc5 Ra2 Be7 Ra1 Bf8 e4 Kd7 d4 c5 Kd2 f5 b4 c4 d6 f3 e5 f2 h6 f4 b6 g3 b5 a4 h7 a3 d5 g2 b7 a2 b6 f3 Ne2 g1Q Rh3 Qe7 Bb2 Qh2 Nf4 Qe6 Na3 Na6 b8R Qg2 b7 Nf6 Qe2 Nc7 Kc3 Qg1 Ng2 Rg8 Ne3 Nce8 Ra8 Rg6 b8R Bb7 Ra7 Qh1 Bg2 f1Q Nb5 f2 Bf3 Qf7 Rb1 a1Q Bh5 Qfg2 Ra5 f1Q Rba8 Qgf2 R8a7 Qa2 Ra1 Qa4 Ra2 Be7 Rf3 Bd8 Rg3 Bb6 Rg1 Qfh3 Rb1 Q3f3 Ra3 Qad1 Ra2 Qd3+ Kb4 Qde4 Ng4 Kd8 d7 Be3 R5a3 Ke7 d8R Bf4 d6+ Ke6 d7 Kd5 Rc8 Qed3 Nd6 Bc6 d8R Qb7+ Ka5 Qa8 Rd7 Kc5 Rb8 Bd5 Ne3 Kc6 Kb4 Qfe4 Nf7 Qed4 Nd6 Be4 Rb5 Qd5 Rd1 Qg3 Rba5 Qf2 Rg7 c3 Ba1 c2 Rb1 c1Q Bd4 Qcg1 Bb2 Qa6 Kc3 Qad3+
2qb2qn/1b1k1BrN/R1Nr3P/q6R/1PpN1p1N/P3n3/K2B1Q1N/6N1 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 gxh5 b5 a3 b4 axb4 a5 Ra3 a4 Ra1 a3 bxa3 Qf6 Bg2 Qg5 Bf1 Qd8 e4 g5 d4 c5 Kd2 f5 Kc3 g4 Kb2 g3 h4 g2 h6 f3 h5 f4 d6 f2 d7+ Ke7 h7 Kd6 h6 Qc7 d8N Qf7 d5 Qf5 e5+ Ke7 d6+ Kd7 e6+ Ke8 e7 Qg6 Qf3 Nc6 Nd2 Ba6 Bc4 f1Q Qf2 Na5 Ne6 Kd7 e8N Qg5 Ka2 Ra7 Nd4 Bb7 N2f3 Be7 Nh2 Bd8 Bd2 Qc1 Bf7 Ne7 Rb1 Qc3 Re1 Ng6 Re6 Nc4 Rf6 Rg8 h8N Rg7 Re6 Ne3 Nf6+ Kc8 Nh7 Kd7 Rf6 Ra6 Re6 c4 Rf6 Qa5 Re6 Ne7 Ng6 Rb6 Nh4 Ng6 Rf6 Nh8 Rg6 Qd3 Rf6 Qdf5 Rg6 Kc8 d7+ Kc7 Rf6 Rd6 Rg6 Qa8 Re6 Qfa5 Rf6 Qc8 Re6 Be7 d8N Kd7 N8c6 Bd8 Ne7 Rd5 Ra6 Rd6 Nec6 Bc7 Ng4 Rdg6 Nhf5 Rg8 Rh5 Rd6 Nh2 Bd8 Nh3 g1Q Nh4 Qg7 Ng1 Qf8 Be1 Rg7 Bd2 Qg8
3k4/3N1PNB/b3pPNP/r3nN2/1nB1Q3/2qN4/R2n2pb/K2bb1RN w - - 0 1 legal: proof: a4 a5 g4 f5 gxf5 c5 d4 b5 axb5 h6 dxc5 Ba6 e4 Bc8 f4 Qb6 e5 Kd8 f6 Qc7 f5 Ra6 Bg5 hxg5 f7 Rf6 exf6 Qb6 Ra2 Kc7 Ra3 Kb7 Ra2 Qd8 Ra1 Kc7 Kd2 d5 Kc1 g6 b4 g4 Kb2 g5 h4 a4 c4 g3 b6+ Kd7 b5 g2 c6+ Kd6 b7 Kc7 b6+ Kd6 h5 d4 h6 d3 c7 Kd7 c5 d2 c6+ Kd6 Qe2 d1B Nd2 g4 Ndf3 g3 Qe4 Nd7 b8N Bc2 b7 Bg7 f8N Nc5 Nd4 Qe8 f7 Bd1 Ra2 a3+ Ka1 Na6 Nh3 g1B Ng6 g2 Nd7 Bh2 b8N Nb4 Nc5 Nf6 Nde6 Ba6 Bc4 Qc8 Rg1 Nd7+ f6 Bf8 Ng7 e6 Nf2 Ne5 Nbd7 Be7 Nh1 Bd8 Rf2 a2 Nd3 Rg8 Kb2 a1N Kb1 Ba4 Ra2 Nb3 Kb2 Nd2 Ka1 Qa8 c8B Kc7 Bb7 Qc8 Ba8 Bd1 Bb7 Be7 Ba8 Kd8 Bb7 Qc7 Ba8 Qa5 c7+ Kc8 Bc6 Bc5 Ba4 Bf2 Bc2 Be1 Bb1 Qc5 Bc2 Qc6 Bb1 Kb7 c8N Kc7 Bc2 Kd8 Nce7 Re8 Nef5 Re7 Nb8 Ra7 Nd7 Qc5 Bb1 Qa5 Bc2 Qa3 Bb1 Qc3+ Nb2 Rb7 Qd4 Bhg3 Nfe7 Nef3 Nge5 Ba4 Bh7 Rb5 N5g6 Ne5 Nef5 Ra5 Qe3 Bd1 Qe4 Qb3 Nd3 Bh2 Nb6 Qa3 Nd7 Qc3+
1NN1rqB1/2nPR2b/2P4B/Q1B3nk/2RK1n2/4rP1q/1n1BpB1p/7B w - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 gxh4 cxd5 c4 Ba3 Bd4 Bc1 Bc5 bxc5 Qd7 Ne2 Qc7 Ng1 Qd8 Ke2 Kf7 Ke3 e5 g4 h5 d4 a5 f3 e4 g5 h3 g6+ Kg7 b6 Kh6 g7 c3 b7 c2 d6 h2 f6 h4 d7 a4 f7 h3 f8B a3 d5 a2 d6 Qg5+ Kd4 e3 d8B Qg2 d7 Kh5 Qe1 Rh7 Qa5 Nh6 g8B Na6 b8B Re7 Ba7 Nc7 Nd2 Nf7 Ne2 Ng5 Nc4 Bb7 Nb6 Be4 Bd2 c1N Bh6 Nd3 Nc8 Nb2 Rc1 a1Q Rc4 Bh7 Bb6 Re5 Be7 Qa3 Bd6 Qg3 Bg2 Qb4 Ra1 h1N Re1 Nf2 Bh1 h2 Ba7 Re7 Bb6 Qg2 Bg3 Nfd3 Bf2 Qa3 c6 Re5 Nc1 Qb3 Ne7 Qa2 Nb3 Qh3 Nc5 Re8 Na6 Qa3 Nb8 Nf4 Nc8 Qf8 Bc5 R5e6 Rec1 R6e7 R1c3 e2 Re3 Re6 Re4 Rg6 Re7 Re6 Rc1 Re5 Rc4 Re3
3B3N/3P1B2/Qb1RKp1b/4NNNb/1p2Pq1N/1qnr2P1/q1k2q2/R4N2 w - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 e5 fxe5 f6 g4 Kf7 g5 Ke7 g6 Ke8 Nf3 b5 Ba3 Nc6 Bc1 Ra3 Qb3 Kd7 Qd1 Re3 Nd4 Rg3 Na3 Qe8 Nac2 Nd8 Nf3 Nf7 gxf7 g5 Ng1 g4 Na3 Qd8 Nb1 Rf3 Bb2 g3 Ba3 g2 Bc1 Rg3 hxg3 Qe7 Na3 Qe8 Nb1 Qd8 Kf2 c5 Kf3 h5 Kf4 h4 Kf5 c4 e4 c3 d4 h3 a4 h2 a5 c2 a6 b3 d6 Kc6+ e6 b2 a7 b4 a8N Ba6 d5+ Kc5 d7 Rh3 e7 Bb5 e8N Rh7 d6 Qc8 Ng7 Bd3 Be3+ Kc4 Nc7 Kb3 Nd2+ Kc3 Nce6 c1Q d8N b1Q d7 Qc7 Nc6 Be2 Qa4 Qe1 Ngf3 g1B Neg5 Rh5 Bb6 Qb3 Qa6 Kc2 Nce5 Qf2 Ba5 Bd1 Bc4 Ne7+ Ke6 Nd5 Nh4 Nc3 Ngf5 Bh6 f8N Qb8 Bd8 Qa2 Nc6 Qbf4 Nfg6 Bf3 Nh8 Be2 Nh7 Rg5 Nf1 Bh5 Rd1 Qb3 Rd6 Qa2 Nfe7 Rd5 Ng5 Rd3 Ne5 Qa7 Nd5 Bb6 Ne7 Qb3 Rg1 h1Q Nef5 Qhf3 Nd2 Q3g4 Ra1 Qf2 Nf1 Qa8 Ke7 Qgf4 Bf7 Nd5+ Ke6 Qa7 Qb5 Qaa2 Qa6 Nc3+
1R3q2/1bR4B/3Q1bR1/R2PbNBN/2bP1bk1/r4pn1/P3p3/1K1Rb1R1 w - - 0 1 legal: proof: e4 h5 g4 hxg4 c4 b5 f4 e5 d4 a5 b4 d5 bxa5 Nd7 c5 Ra6 exd5 Rd6 cxd6 e4 Bc4 Ngf6 Bf1 Ne5 fxe5 Ng8 Kd2 g5 Kc2 c5 h4 f5 e6 f4 d7+ Ke7 h5 Kf6 a6 Kf5 a7 f3 a8R e3 h6 b4 e7 b3+ Kb2 c4 e8R g3 h7 g4 Rh2 e2 Rb8 g2 Na3 g3 Nc2 c3+ Kb1 b2 Rh6 Bg7 Bg5 Bb7 Nh3 g1B Nf4 g2 Qd2 Nf6 Nh5 Bf2 Re7 g1B Rg6 Qf8 d8R Kg4 Rc7 Be1 Ra8 Bh2 Rdb8 Bd6 Ra5 Be5 Bg2 Rg8 h8R Ne4 Qd3 Ng3 Qa6 Bgf6 Qd6 Rg7 Rg8 Rh7 Nb4 Rf7 Nc6 Rh7 Ne7 Rf7 Kc2 b1B+ Kc1 Bd3 Nf5 c2 Kb2 Qe7 Rd1 c1B+ Ka1 Bc4 Kb1 Qf8 Rh6 Re7 Rd8 Nf1 Nh4 Bh2 Rb8 Re3 Rgg7 Bhe5 Rg8 Bg7 Bd8 Ra3 Rf6 Kg5 Bh3 Ra4 Bf5 Be3 Bh7 B3f4 Nf5 Ra3 Rh6+ Kg4 Be7 Kh3 Bh4 Bgf6 Rg1 Ng3 Bg5 Kg4 Rg6 Qh6 Nh4 Qg7 Nf5 Qf8
1R1q2qB/Q1p2NBr/1nBP1p1q/B2rNPB1/3Pn3/5q1n/5k1K/1R1B4 w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 g5 e4 gxh4 c4 d4 c5 d3 Qg4 Bb7 Qc8 Bd5 exd5 Bg7 Bxd3 Bh6 Bf1 Bf4 d4 Bd6 cxd6 Na6 Be2 Nb8 Bc4 Na6 Bf1 Nb8 d7+ Kf8 f4 Kg7 Kf2 Kf6 g4 e5 Kg2 a5 b4 h5 b6 a4 b7 e4 f5 a3 b5 a2 b6 e3 g5+ Ke7 g6 Kd6 g7 e2 Nd2 e1Q Nc4+ Ke7 Nf3 Kf6 Rb1 Qde8 d8B+ Q1e7 Be2 Nd7 b8B Ra5 b7 h3+ Kg3 Rc5 Nd6 h2 Rb6 a1Q Ne5 Rh7 Ba7 Qf8 b8B Qa2 Qb7 h4+ Kg2 h3+ Kg3 Nh6 g8B Ng4 Rb4 Qd2 Bb6 Kg5 B8a7 Ngf6 Ba5 Qh6 Rd1 h1Q Bf3 Rb5 Bc5 h2 Qa7 Qe8 Be7 Qd8 Be4 Kh5 Rb2 Qc2 Bg5 Qc4 Rdb1 Qd1 Kh3 h1N Kh2 Qf3 Bc2 Ne4 Bd1 Nhf2 Bef6 Qb3 Bh8 f6 Bcb4 Nh3 Be6 Ndc5 Bd7 Na4 Bc6 Qc4 Ba3 Rc5 Rb8 Nb6 Ne8 Rb5 Bf8 Qb3 Bfg7 Qa2+ Bgd2 Kh4 Nd6 Rc5 Ndf7 Qc4 d6 Qd5 Ng5 Q5g8 Ngf7 Rb5 Nc4 Rd5 Bg5+ Kg4 Bh4 Kf4 Nce5 Ke3 Bg5+ Kf2
3B4/k2b3R/B1R5/p2pp1bR/2P3P1/1qp4N/Q3PnbR/RRK1bq1N w - - 0 1 legal: proof: g4 f5 a4 fxg4 h3 b5 axb5 g3 Ra2 g2 Ra6 Nc6 Ra1 Nb8 Ra4 a5 Na3 g5 Nb1 g4 Ra3 g3 Ra1 Ra6 Ra3 Rg6 Ra1 Rg4 hxg4 Bb7 Rh3 Ba6 Rh1 Bc8 c4 h5 b4 Rh6 b6 Nc6 b5 Rf6 b7 Rf5 b6 Nb8 d3 Rb5 Bb2 c5 Ba3 Nc6 Bc1 Ne5 cxb5 c4 Bh6 c3 Bc1 Nc4 dxc4 Bh6 Na3 Bg7 Nb1 Bf8 b8R e5 f4 d6 f5 Kd7 b7 Kc7 b6+ Kc6 f6 h4 f7 h3 Qa4+ Kc5 Kd1 h2 Nh3 g1B Bg5 g2 Qa2 Kc6 Kc1 Nh6 Nd2 Bc5 Ne4 g1Q Ng3 Bg7 f8R Nf5 Rh8 Bh6 Rh7 Bd7 Rc8+ Qc7 b8R Ne3 b7 Kb6 Be7 Ka7 Bd8 Qb6 Rc6 Bg5 Rh5 Qf2 Bg2 Qb3 Rbc8 Bb6 b8R Bd4 Be4 d5 Bf5 Bc5 Rch6 Bb6 Rh7 Qf3 Rc6 Nd1+ Nf4 Bf2 Rb5 Bh4 Nh3 Be1 Be6 Qf1 Bf5 Qa4 Rbb1 Nf2 Be6 Be7 Bf5 Qb3 Be6 Be8 Bc8 Bd7 Ba6 Bh4 Rg1 h1B Rg2 Be7 Rh2 Bg2 Nh1 Bg5+
1R2qB1b/2Pb4/B3NnR1/r2NB1PB/1P1Knbqn/3Q4/1kr1n3/4n1BB w - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Ke6 g4 Ke5 b4 h5 c6 a5 c7 d5 b6 a4 f3 e3 b7 h4 g6 a3 g7 e2 g5 e1N Nh3 d4+ Kc4 d3 c3 d2 Be2 a2 Rh2 Bd7 c8B Qe8 Nf4 h3 Ne6 Nf6 g8B Ng2 f4+ Ke4 f5 Na6 b8B Nc5 Bf4 Nh4 Bh5 Ra5 Ba6 Bg7 Qf1 d1Q Bce3 Qg4 Bg1 Bf8 Rf2 h2 Be5 h1N Rd2 Rh7 Rd6 Ng3 Rb6 Bg7 Rb8 Bh8 Qd1 Ne2 Qd2 Nd5 f6 Rh6 f7 Nf6 f8B Rg6 Na3 Rg7 Rf1 a1B Nc2 Bb2 Rf2 Bc1 Ne3 Rh7 Qd6 Bd2 Nd5 Bf4 Ndc7 Ke3 Nd5+ Kd2 Rh2 Kc1 Rh1 Ng3 Kd4 Kb2 c4 Nce4 c5 Rh6 c6 Rh7 c7 Rh6 Nc3 Ne2+ Kc4 Rh7 Qd3 Rf7 Nd4 Rh7 Bd5 e6 Ba8 Rf7 Nd5 Rh7 Bed6 e5 Ne6 Nf3 Nd4 Nf2 Ne6 e4 Nc3 e3 Bg6 Nc1 Be5 Rh2 Bc6 Rg2 Rh6 Nh4 Kd4 Rh2 Bh1 N2e4 Bh5 Rc2 Nd5 e2 Qc4 e1N Rg6 Ng8 Qb5 Ngf6 Qd3 Ne2+
2K5/1qn3b1/4P1BB/1b2B1R1/kq2n1Qr/bN1bR1nr/P3P1BN/2BB3r w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kg3 h5 Kf4 f5 g4 c5 d4 b5 g6 b3 g5 b4 g7 b2 d6 Kc6 d5+ Kb5 g6 b3 d7 h4 d6 c4 Rh3 c3 Bg2 c2 Nd2 b1Q Re3 h3 Ngf3 h2 Qg1 h1R Nh2 b2 Nb3 Qc7 d8B Bd7 Bg5 Ka4 Bh6 Nf6 g8B Bg7 Bf7 Bb5 d7 Qb7 d8B Ne4 Bc7 Na6 e6 Rh7 Be5 Rah8 Be8 Nc7 Bf7 Bf8 g7 Ba3 g8B Bf8 Bg5 Rh3 Bh6 Bg7 Bg6 Rh7 B8f7 Rh8 Be8 Rh4+ Kf3 f4 Bc6 Rh3+ Kg4 f3 Kf4 f2 Kf5 f1N Bd5 Ng5 Bc4 Bf8 Kf6 Bg7+ Ke7 Ng3 Bcd3 Rh7 Kd8 N5e4 Bc4 Qd5+ Kc8 Rh4 Bd2 c1B Bd3 Qc5 Bc2 Qd4 Bd1 Qb4 Qf1 Rh3 Qf3 Rh4 Qg4 Rh3 Bhf4 R7h4 Bg5 Qd3 Bgf4 b1B Bh6 Ba3 Bc1 Bc2 Rb1 Qd5 Rb2 Bcd3 Rc2 Qc6 Rc5 Qe1 Bc3 Qd2 Rg5 Qd5 Bd4 Qb4 Be5 Qb7+
1BkB4/1nBn1r2/2bB1p1R/PqP1Q1bR/5KB1/qPb5/1rq1NB2/N1n5 w - - 0 1 illegal: No proof kernel
2Nnk1rB/1pKq2Pb/4N3/Nr1PB3/1P2N1rr/r1Q3N1/n1b1R3/b5NR w - - 0 1 illegal: No possible last move, all moves rejected
3nR2K/prPk1b2/4r2b/B1RB4/3NQ1BB/PNbB1r2/1B1Pr2q/1r1n4 w - - 0 1 legal: proof: f4 c5 g4 h5 b4 hxg4 bxc5 e5 fxe5 d5 c4 Qc7 cxd5 Qd8 Kf2 b5 Kg3 f5 Kf4 g6 h4 g3 e4 b4 a3 g2 c6 b3 e6 b2 Ke5 f4 e7 g5 h5 f3 c7 g4 d6 f2 h6 g3 d7+ Kf7 e8B+ Ke7 h7 Nh6 Qe1 Nf5 Bh5 Na6 Nf3 g1R Bg4 g2 Rh5 Ne3 Nc3 b1R Na4 Nf5 Bd3 f1R Nc5 Rb4 Nb3 Bh6 Nfd4 Nb8 Bb2 Re8 h8B Ne3 Rc1 Rf6 Rc5 Rb7 Rg5 Rd6 Rg8 Nd1 Bc3 Ra6 Ba5 Nc6+ Kf5 Kd6 Kg6 Qh4 Kh7 Qh2 d8B Be6 e5+ Kd7 Bh4 Nd8 Qe4 Rh1 Bg7 g1B Kh8 Rf8 Bgf6 Rab6 Bg7 Rf3 Re8 Bge3 Bgf6 Re1 Bg7 Rab8 Bgf6 Re2 Bg7 Rf5 Bgf6 Bf7 e6+ Kd6 e7 Kd7 Nc6 Bg1 Bb2 Bf2 Ncd4 Re6 Rg8 Rf3 e8B+ Kd6 Ba4 Bg3 Bc6 Be5+ Kh7 Bh8 Bd5 Kd7 Re8 Bf6 Nf5 Bc3 Nfd4 Bg6+ Kg8 Bf7+ Kh8 Rg3 Na1 Rf3 Bc1 Rb1 Nb3 Rb5 Bb2 Rb7
1NB4k/b7/1n1P3n/1BR1K2r/6Rr/PpP1BBnq/n1qBB2N/4Qn1b w - - 0 1 illegal: No proof kernel
1NN1N2K/Nbq3B1/1N1n4/rq5P/1k1Pn3/1r1bb1Rq/P1QpB1R1/3Nb3 w - - 0 1 illegal: No proof kernel
rqb2Rr1/5R1Q/1Kb3nN/BPB1BBN1/2r2B2/5P2/2p1qbPB/1kb4n w - - 0 1 illegal: No proof kernel
B2nRNKR/q2rRB2/p2r2b1/3R3r/P2RNQ2/Rq3P2/1b3Pb1/n1b3k1 w - - 0 1 legal: proof: d4 f5 b4 c5 bxc5 e5 dxe5 f4 Be3 f3 gxf3 h6 Bg5 hxg5 Kd2 Ke7 Kc3 d5 Kd4 b5 c4 b4 a4 g4 h4 g5 e4 a6 h5 b3 c6 g3 c7 b2 e6 Kf6 c5 g2 c6 g4 e5+ Kg5 e7 g3 e8R Ne7 e6 Bh6 Ke5 d4 Rh4 d3 Rf8 d2 Rf7 Qd3 Rd4 Nd5 e7 Nb4 e8R Bh3 c8R Qb3 c7 N8c6+ Kd6 Ra7 Ne2 g1Q Qc1 g2 Ra3 Nd8 Ke7 Nc2 Nf4 Kh4 Nc3 d1R Ne4 b1B Ne6 Na1 Nf8 Bg7 Rd5 Bb2 h6 Qh2 h7 g1B Bc4 Bg2 Rg7 Kh3 Qf4 Qg3 Rb8 Kh2 Rb4 Kh1 Rf7 Bh2 Rg7 Rd4 Kf6 Qh3 c8B Qd7 Bb7 Kg1 Ba8 Qe7+ Kg6 Rd7 Rf7 Rd6+ Kg7 Qa7 Rfe7 Bd3 Rh5 Rd7 Bf7 R4d6+ Rd4 Bb1 Rd5 Bd3 Qf6 Bf4 Qf5 Bfc1 Qf4 Bc2 Ng6 Rf8 h8R Rg8+ Kh7 Bb1 Nf8 Rg5 Qd2 Bd3 Qf4 Rh5+ Kg8 Bb1 Ng3 Bf5 Ne4 Bg6
1bN1NKn1/1PRNNN1N/1q4P1/Q5p1/r1rBk1nq/1B5b/3P4/1R1b1b1n w - - 0 1 illegal: No proof kernel
6Bq/q5N1/3q2R1/r1BN3P/1qkb1Brp/3nrQRP/4KPBr/3B1B1n w - - 0 1 illegal: No possible last move, all moves rejected
k2KbB1B/1r2bq2/1B1R1qRn/N5n1/1PB1qp1q/2N2Pn1/1PBn2B1/3Q4 w - - 0 1 illegal: No possible last move
B1RB3B/3Bb2K/rB2r3/NPrPrbN1/5kn1/3bp1R1/Q2rPBn1/7b w - - 0 1 illegal: No proof kernel
2rB4/1Qb2qk1/7n/p1pR1RNq/2nP2r1/1R3R1P/2Pn1R1b/1BN1KRr1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 h5 gxh5 b5 axb5 Be6 Qe2 Bf5 Qd1 Bc8 f3 e5 Kf2 e3+ Kg3 e4 Ra5 e2 Kg2 e3 Ra3 Bb7 Ra1 Be4 fxe4 Qf6 Ra3 Qh4 Ra1 Qd8 b4 e1R d4 g5 h6 f5 h7 Kf7 b6 a5 b7 c5 h3 e2 Kf2 f4 e5 g4 e6+ Kg7 b5 f3 e7 Qd6 e8R Kf7 b6 Bg7 Nc3 Nc6 b8R Nf6 b7 Ne7 Rh2 Nc8 Bg5 Qd5 Re3 Nd6 Rd8 Ng8 b8R Nc4 Na2 Nh6 Qb1 Be5 Nc1 Bc7 Rbb3 Rg8 h8R Rc8 Rd6 Kf8 Bd8 Qf7 Rd5 Kg7 Ree5 Rd1 Rf5 e1N Bd3 g3+ Kf1 f2 Nf3 Qe8 Ng5 Qh5 Rf3 g2+ Ke2 Ne5 Bc4 g1B Rg2 Bh2 Kf1 Re8 Rhf8 Re6 R8f5 Rg6 Ne4 Rg4 Ng5 N1d3+ Ke2 Rg1 Kd2 f1Q Rgf2 Ne1 Qb2 Ng2 Qb1 Ne3 Qb2 Qg2 Ke2 Nf1 Ke1 Bg3 Rb6 Qf7 Ba2 Bh2 Bb1 Nc4 Rbb3 Qh5 Rbd3 Qg3 Qb7 Qf4 Rb3 Nfd2+ Rf1 R4g2 Rf2 Rg4 Raa3 Qd6 Rbf3 Qf8 Rab3 Qff7
2kr2N1/1q3B2/1q2r1P1/n2R3P/pK1nR3/1p2nQqB/B2BB1BP/1b2b1N1 w - - 0 1 illegal: No proof kernel
1q1n3Q/RR1q2RK/1Pb1Bn1P/6Pr/2q3p1/Br1kp2N/2R1R3/NRb1n3 w - - 0 1 illegal: No proof kernel
2QN1N1n/b1n1rPR1/1P3N2/1qqR1n1b/rN3pr1/1pN2P1N/3B4/1K1B3k w - - 0 1 illegal: No proof kernel
1r1b4/Nk1P1R1N/p4R2/rn2q1P1/1Rr1P3/1B3RB1/2nKpqq1/QR2R2b w - - 0 1 illegal: No proof kernel
7R/1p2PB2/BP4K1/3P1bpr/bQr2b2/6R1/kqN1qn1n/BNBq2BB w - - 0 1 illegal: No proof kernel
bBkrr1R1/2pp1RNB/1R1rrq2/4n1Q1/1n1P1PP1/2R5/Rb1NRq2/1K6 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 a4 Kf7 axb5 Ke8 h4 gxh4 b4 e6 c5 Qg5 c6 Qe7 b6 Qc5 b5 Qa3 Bc4 Qa6 Bf1 Qb7 cxb7 Bg7 Na3 Bh6 Nb1 Bf8 f4 Kd8 g4 h5 d3 a5 Kd2 a4 Kc2 a3 f6 e5 f7 a2 Be2 h3 Nd2 h4 Ngf3 e4 Nd4 e3 Nf5 h2 Re1 h1R Ng7 Nc6 b8R h3 b7 h2 b6 Nh6 Bb2 Ra6 Bd4 Ba3 Qc1 Re8 f8R Rg1 Rf7 h1R Bd1 Ra8 Re2 Re1 Bc5 Bb2 d4 Rh5 Qb1 Rd5 Qc1 Rd6 Qb1 Bc3 Qb5 Bb2 Rc1 a1Q Qa5 Qa3 Kb1 Qd3+ Bc2 Qa6 Bh7 Nb4 Qb5 Nf5 Qa5 Ne7 Qb5 Ng6 Qa5 Ra7 Ra8 Ne5 b8R Ree6 b7 Qb6 Rf2 e2 Qb5 Ra3 Ra7 Re3 Ra2 Rh1 Rh2 e1Q Re2 Qf2 Qa5 Rhh6 Rc3 Re8 Ra8 Rhe6 b8R Qa6 Rb6 Rh3 Bf5 Rhh8 Bh7 Rhg8 Rc6 Rgf8 Ba7 Qb6 Bb8 Bb7 Qb5 Qa6 Rb6 Kc8 Qd3 Rd8 Qg6 Rh8 Qg5 Rhe8 Rf8 Qb5 Rg8 Qc6 R8a5 Ba8 Rd5 Ng6 Rf5 Ne5 Rf7 Qh1+ Re1 Qh6 Re2 Qf6
R1Rn4/1Qq2nRR/b2r1q1q/p1b1NPR1/3R1n2/P4qp1/3N2PK/1B1kB3 w - - 1 2 illegal: No possible last move, all moves rejected
k2b1b1n/1p3N2/pRrqb3/R3QK2/PP1NB3/N2P1Nr1/3N3N/4Bbbb w - - 0 2 legal: proof: e4 f5 c4 d5 cxd5 g6 exf5 g5 f4 gxf4 h4 Na6 g4 Be6 g5 Nc5 g6 Ne4 Rh3 Bc8 Rh1 Ng5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 Kf2 Kd7 Kf3 c5 Kg4 Kc7 b4 Kb8 d6 e5 d3 h6 g7 c4 d7 e4 g6 e3 f6 e2 f7 e1B Kf5 c3 Nf3 a6 Na3 c2 Bg2 h5 Bd2 c1B Qe2 h4 Qe5+ Ka7 Rh3 Bf2 Be1 Rh6 Rh1 B8c5 f8N h3 Ne6 h2 Ned4 Bf8 Rf1 h1B Rg1 Nf6 g8N Ng4 g7 Rc6 Nh6 Bd2 Rf1 Bg1 g8N Qe7 Nf6 Qd6 Ne4 Bc1 Nfd2 f3 Ng5 f2 Be4 Rb8 Ngf3 Ka8 Qd5 Ne5 Ng4 Ng6 Ngh2 Bb2 Qe6 Nh8 d8N Bd7 Nf7 Bc8 Rc1 Bd7 Rc5 Re8 Ra5 Bc3 Ndb5 Bf6 Nbd4 Bh4 Nac4 Bf6 a4 Bd8 Na3 Re7 N7e5 Rg7 Nf7 Be8 Qe5 Rg3 Ng4 Bh2 Rg1 f1B Rg2 Bg1 Ngh2 Rh3 Rg4 Rg3 Rg6 Bd7+ Qe6 Rc8 Rf6 Qc5+ Kf4 Qe7 Qe5 Rc3 Rb6 Rc6 Nd6 Be6 Nf7 Bb3 Kf5 Qd6 Qd5 Bc4 Qe5 Be6+
R2n4/3B1bkP/1Bbq1r1p/1BN2n2/1p1P1Pp1/r1B1N1R1/1Qr1KB1b/3B4 w - - 0 1 illegal: No proof kernel
1Kn2N2/pN1Nn1Q1/P1rb2R1/1NBPr3/p3pnBk/3N3b/2P3b1/4R1Nq w - - 0 1 illegal: No proof kernel
nbbR1K2/3P1p1k/R3N1p1/1r3BBP/1PQ1R1Rr/N7/4p1q1/Rnb2R1b w - - 0 1 illegal: No proof kernel
6b1/2BnprPB/1BN1P3/1PB3p1/K2q2np/1nr1B1QR/1q1R3q/k1N3B1 w - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 b4 h5 b3 h6 g6 axb3 Qd6 b4 Qd8 b5 f5 g4 Bg7 f4 fxg4 f5 Be5 f6 Kd7 f7 a5 f8B Bd6 Bg7 a4 Bc3 Be5 d4 Bg7 hxg7 Kd6 Kd2 c5 Kc2 h5 e4 g5 b4 h4 e5+ Kd7 e6+ Kd6 b6 a3 Kb3 g3 b7 g2 b5 a2 Bb4 Qc7 Bd3 Rh7 Qg4 Nd7 b8B Rh6 Ba7 Rf6 Nf3 g1Q Ka4 Rf7 Bh7 Ngf6 Be3 Bb7 Nbd2 Rc8 Rd1 a1N Ne5 Nb3 Qg3 Ng4 Rh3 Qb6 Ba3 Qh2 Bg1 Qd8 Bc1 c4 Nc6+ Nge5 Bb6 c3 Ba7 c2 Bb6 Na1 Nb3 Rc7 Bf4 c1Q Bfe3 Qcb2 Nc1 Nb3 Rd2 Rc8 Nb4 Rc2 Nc6 Rc3 Bc5+ Kc7 Bb4 Kb6 d6 Ng4 d5+ Nd4 Ba5+ Kc5 Bb6+ Kc4 Ba7 Nb3 Bac5 Nb8 d7 Qb6 d8B Nd7 Bd6 Qd4 Bc5 Ba8 d6 Bb7 Nb8 Be4 Bdb6 Bg6 Nc6 Bh5 Bf5 Bg6 Bc7 Bh7 Bb1 Nde5 d7 Bg8 d8B Nd7 Bh7 Rd3 Rd1 Kc3+ Bb4+ Kc2 Rd2+ Kb1 Bb6 Ka1 Bdc7 Qd6 Ba3 Rc3 Bac5 Qd4+
6Bq/2bNNnpp/N1n1pRPk/Q1N4n/1K3Pr1/N1P1B1r1/5n2/qN4R1 w - - 0 1 illegal: No proof kernel
K3Rn2/bn1Pp2k/p2Q3B/1BnB4/BrN1P3/P2rb2B/1p2R3/1BN1n1r1 w - - 1 2 legal: proof: c4 g5 g4 d5 f4 dxc4 fxg5 a6 b4 Be6 h4 Nd7 h5 Bf5 b5 Qb8 b6 Qa7 bxa7 Bg6 hxg6 Nb8 Kf2 b5 Ke3 f5 Kd4 c5+ Kd5 h5 e4 f4 d4 h4 g7 Kf7 a3 Kg6 Qa4 c3 Ne2 c4 Bg2 f3 Rg1 f2 Nd2 f1N Qd1 h3 Ra2 h2 Bh3 Nd7 Kc6 h1R Kb7 c2 d5 b4 d6 c3 Nc4 Nh6 g8B b3 Bd5 Rd8 a8B Kh7 Bd2 Nf5 Nc1 N1e3 g6+ Kg7 g5 Ng2 Ka7 Ne1 Bac6 Rb8 Rf1 Rg1 Ba4 Rb4 Ka8 Rg8 Bdc6 Kh8 g7+ Kh7 Bcb5 b2 Ra1 Rg3 Rf2 Rd3 Re2 Nh6 Be3 Nf7 Qd2 Nd8 Rb1 Ne5 d7 Ng6 Bf4 Nb7 Ra1 Rg3 Qd6 Re3 Nb3 Rd3 Rc1 Nf3 Rg1 c1B Be3 Bd2 Nc1 c2 Bf4 Be3 Rg4 Ba7 Rg3 Rh8 g8B+ Kg7 Bf7 Ne1 Bd5 Rg8 Rf3 Kh8 Bd2 Bg7+ Rf8 Kh7 Re8 Bh6 Be3 Nf8 g6+ Kh8 g7+ Kh7 Na2 c1N Bg5 Nb3 Nc1 Rh8 Bf4 N3c5 g8B+ Kg7 Bge6 Rg8 Be3 Kh7 Bf4 Bg7 Bh6 Bf6 Bc2 Bd4 Bb1 Bf2 Bdc6 Rgg3 Bed5 Be3 Ba4 Rg6 Bcb5 Rg1
Rrk1n3/p2q1ppB/1nB2b2/Q2p4/b3P2P/1BNP2K1/B3Nr1b/4BBR1 w - - 0 1 illegal: No possible last move
1nBBnk1q/2R4p/1n2B3/1N4Q1/R2r1B1B/pp2P2P/p4PB1/1Kb2bqN w - - 0 1 illegal: Other
4RKB1/Qr1RqP1p/RnpR3r/1pb1B3/1RrP2Nk/2p5/1P3Nn1/r5R1 w - - 0 1 legal: proof: e4 d5 c4 dxc4 a4 g5 h4 f5 exf5 b6 hxg5 Qd4 a5 Bb7 a6 Qd5 axb7 Qd8 Ke2 Kf7 Ke3 a5 Ke4 e5 f4 a4 d4 c6 g4 a3 g6+ Kf6 g5+ Ke7 f6+ Ke6 f7 a2 f5+ Ke7 f6+ Ke6 g7 c3 g6 Qc8 Nh3 Nh6 g8R Ra7 g7 Nd7 b8R Ra4 Bf4 Ra5 Bc4+ Rd5 Nd2 Qe8 Qa4 Bb4 f8R Qf7 Rhg1 Ng4 Nf2 Bc5 Nf3 Ne3 Rfd8 Ng2 Nh2 Qe7 Rge8 Kf7 Kf5 e4+ Be5 e3 g8R e2 Qa7 e1R Rg6 b5 Rb6 Rb1 Ra6 Nb6 Nhg4 Rg8 Rd6 Rg7 Rd7 Re1 Ra4 Re3 Rb4 Rh3 Rac1 a1R Kg5 Re3 Kh6 Ke6 Rcf1 Kf5 Rb1 Rd6 Bg8 Re1 Rd1 Ra4 Ra1 Rf7 Ra3 Ra1 Ra2 Rf8 f7 Rf6 Ra8 Rb8 Kg7 Rb7 Re8 Re6 Rf6+ Kg5 Ra3 Kh4 Rg6 Rf6 Ra2 Rf3 Rgd6 Rf6 Ra3 Rh6 Ra2 Qf6+ Kf8 Qd8 Rb3 Rb4 Ra6 Rc4 Rb4 Qe7+
q3r1nK/k2B1pb1/5PB1/p3N2b/2R1q1NQ/P1p1Pnq1/r1B4b/1B2B1BR w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 h4 g5 hxg5 Ba3 Qd6 Bc5 Qd1 Bf8 Kd2 a5 Ke3 c5 Kf4 h5 Kf5 d5+ e6 c3 f4 h4 b4 d4 g4 c4 g6 c2 g7 c3 b5 d3 b6 d2 g5 h3 g6 h2 b7 Qe7 e3 Kd8 Nh3 Kc7 Bd3 Kb6 Qg4 d1Q Na3 Nc6 b8B Qd6 Nf2 Ra7 Bd2 c1B Bc2 Nf6 g8B Bb7 g7 Ra8 e7 Na7 e8B Bd5 Qh4 Nd7 Ng4 Bf3 Be1 Ne5 Bd7 Nc8 Bh7 Q1d4 g8B Bg7 Bg6 Ne7+ Kg5 Rh7 f5 Qe4 f6 Bb2 Bc7+ Ka7 Nc4 Ba3 Rb1 Be2 Rb4 Re8 Bb1 Rh6 B8h7 Ng8 Ra4 Bb4 a3 Qa8 Bgc2 Rg6+ Kh5 Nf3 Nce5 Bc5 Rc4 Bb4 Nf2 Rg2 Nfg4 Bd1 Bhg6 Bc5 Nd3 Qg3 Bf4 Bd6 Nde5 Qh3 Bfg3 Bb8 Bgf2 Qg3 Rg1 h1Q Rf1 Qhh3 Rh1 Qf4 Bg1 Qfe4 Bd3 Ra2 Bdc2 Qg3 Be6 Ne7 Bd7 Bh8 Kh6 Ng8+ Kh7 Bg7 Qh6 Be2 Qh4 Qg2 Nd3 Bh2 Nde5 Qg3 Nf2 Nd4 Qh6 Bf8 Qh4 Bh5 Nfg4 Nf3 Kh8 Bg7+
R1BB2n1/1p1pQq1b/2k2bB1/1np1rBP1/1R1Pq2q/K1Pr1Bn1/7B/N4N2 w - - 0 1 illegal: No proof kernel forced: wxLB
5BNk/Np5N/rPNp4/bRrN2r1/3Pqp2/n4Qr1/B4P2/N1KbbR1n w - - 1 3 illegal: No proof kernel
3n1QqN/RN3PR1/1k2pKN1/2qb1r2/B2pP1pb/1nN1N3/1N1Pn3/2r1Bn2 w - - 0 1 illegal: No proof kernel
2rB1QB1/kq1P1pN1/rnpB1P1N/2BR2pK/1q3p2/2RB4/BbPnb3/5b2 w - - 0 1 illegal: No proof kernel
3qr1R1/BR2Bk1n/2p2rrp/1NPr2pB/1n1q3P/2B1Kp1b/4QPB1/3B2N1 w - - 0 1 legal: proof: e4 d5 b4 dxe4 g3 a5 bxa5 Qd6 Qh5 Qd7 Qd1 Qd8 Na3 f5 Qg4 f4 Qf3 e6 Nb1 Bd6 Qe2 f3 Qd1 Bf4 gxf4 Ra6 Ba3 Ra7 Bc1 Ra8 d4 b5 Kd2 g5 h4 h6 a4 b4 c4 e5 a6 b3 a5 b2 d5 Ne7 a7 Nec6 c5 Ba6 d6 Rf8 f5 Qd7 f6 Rf7 Bg2 Rf8 f7+ Kd8 Ke3 Bf1 a6 Nb4 Na3 b1Q Bd2 Qb2 Qe2 Rg8 f8B Ke8 Ra2 Kf7 Bc3 Qd8 Nb5 Nd7 Be7 Nf6 d7 Rg6 Ra5 Rb8 a8B Rb6 a7 Nh7 Bd5+ Rbe6 a8B c6 Bb3 Qa1 Bd1 Ref6 Bb7 Qb2 Bh3 Qa1 Bg4 Bh3 Ra8 Qb2 Bh5 Qa1 Ba6 Qa4 Kd2 e3+ Ke1 e4 Rc8 Qg8 d8B Qa1 Ba5 Qd8 Bb6 Qb2 Ba7 Qa1 Qd3 e2 Kd2 e1R Ra8 Rf1 Ke3 Qa4 Qe2 Qa1 Bc2 Rd1 Bc8 Rd5 Bd7 Qc7 Rg8 Qd8 Bd1 Rdf5 Kd4 e3 Ke4 Rd5 Bf5 Bg2 Bh3 Bf1 Bg2 Qb2 Qd3 e2 Ke3 e1R+ Qe2 Qa3 Rh3 Qa1 Rg3 Qa4 Rg4 Qa1 Rd4 Qb2 Rd2 Qa1 Rb2 Qa4 Bh1 Bh3 Bg2 Qe8 Na3 Qd8 Bd6 Bg4 Ke4 Bh3 Qe3 Nc2+ Rb4 Nd4 Rb7+ Ke6 Nb5 Nc2+ Bd4 Qb4 Bf8 Qd2 Bc3 Nb4 Bd6 Rdf5 Bf8 Q2d7 Bd6 Kf7 Kd4 Re2 Qd2 Re8 Qe2 Nd5 Be7 Nb4+ Ke3 Qd5 Bc2 Qc4 Ba4 Rd5 Bd1 Qd4+
1N3Q2/2r1q3/N1B2B2/NK1b3P/NPnB1r2/Rr2r1P1/2k2br1/1Rnn3B w - - 0 1 legal: proof: c4 b5 e4 h5 a4 f5 axb5 g5 exf5 d5 cxd5 h4 f4 h3 Qe2 Bg7 fxg5 Bh6 g3 Bf8 Qg2 hxg2 Ke2 Kf7 Kd3 a5 Kc4 e5 b4 c5 d4 e4 h4 a4 h5 e3 f6 a3 d6 Ke6 b6 Kf5 b7 Ke4 f7 a2 d7 e2 d5 e1R d6 Nc6 b8N Nge7 g6 Ra3 g7 Ne5+ Kb5 c4 g8B c3 Be3 c2 Na6 c1N Bd4 Ree3 Nf3 g1R Bg2 Kd3 Nc3 Bb7 Na4 Bd5 Nd2 Nc4 Nb3 Kc2 Na5 Rab3 Rb1 Bg7 f8Q a1R Be6 Qc7 d8B Nf5 d7 Rh7 B8f6 Qd6 d8N Qe7 Bf3 Rg2 Ndc6 Ra2 Ra1 Rf2 Bg2 Rf4 Bd7 Rab2 Ra3 Ra2 Bh4 Be5 Bf3 Bb8 Bg2 Ba7 Bhf6 Re2 Qh6 Qe6 Nd8 Kd2 Bh4 Nfe3 Bb6 Nd3 Rb1 Nc1 Bh1 Nd1 Qf8 Re5 Be8 Rc7 Bf6 Qe7 Ndc6 Kd3 Be3 Rg2 Ncb8 Kc2 Bc6 Bc5 Bd4 Ba7 Bc3 Bf2 Bd4 Ree3
3nr1N1/1K2rP2/1B1P2RQ/2bN4/nr1Nr2P/1n4b1/k1BrqR2/1R2NR2 w - - 0 1 illegal: No possible last move
1Nbrnb2/P2N1PR1/1P3B1B/1Q1r1r2/q5B1/R3K3/1Nk2nn1/1b2BrN1 w - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b4 a5 b5 Rh6 Qb3 Rh7 Qb4 Rh8 Nc3 axb4 Na4 Qd6 Nc5 Qd7 Nxb7 Qd8 Ke2 Kd7 a4 g5 h4 e5 d4 c5 f4 e4 a5 b3 a6 b2 a7 b1B d6 c4 f6 Ke6 d7 Kf5 d5 e3 h6 Ke4 h7 g4 b6 g3 d6 c3 h5 c2 f7 g2 f5 Nh6 f6 Nc6 Ra3 Be7 f8N Nb4 f7 Bf6 Na5 Nc6 Nc4 Nb4 Nb2 Qe8 d8Q Nd3 d7 Ng8 h6 Bg7 Qg5 Nf2 d8N Qa4 Qb5 Nf6 Nd7 Bf8 Nc6 Ne8 Ncb8 Kd4 Bd2 c1R Be1 Rd1 Rh2 Rg8 h8B+ Rg7 Kf3 e2 h7 Rd2 Rh6 Rd1 Rf6 Rg5 Bg7 Rh5 Bh6 Rf5+ Bf4 Rd2 Rg6 Rd1 Rg7 Rd2 Ra1 Kc3 h8B Kc2 Ra3 Rd6 Ke3 Rdd5 Bc3 e1N Bh6 Rh5 Be2 Rhf5 Nh3 g1R Bg4 Rf1 Ng1 Ned3 Bd2 Nf4 Be1 Bb7 Nc6 Rd8 Ncb8 Bc8 Rg5 N2d3 Bf6 Nf2 Rg7 Ng2+
1KRr3N/2n3P1/1B2n3/2NR2B1/b1P5/n1BQ2r1/b1qP2nn/NN1B2nk w - - 0 1 legal: proof: e4 b5 a4 g5 h4 f5 exf5 d5 axb5 gxh4 Ra4 c5 Ra1 Bg7 c4 Bc3 cxd5 c4 Ra2 Bd4 Ra1 c3 Nh3 c2 Ng1 Bc3 bxc3 Bb7 Ra3 Ba6 Ra1 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 h5 g4 a5 b6 e5 f6 a4 d6 h3 f7 a3 f8N h4 g5 h2 b7 h3 f5 a2 f6 Nh6 d7 Na6+ Kd6 Rg8 b8B Nc7 f7 Ng4 Ne2 Kf3 g6 e4 Kc6 e3 Rg1 h1N Ne6 h2 f8N Ng3 Nc5 h1B Bb2 c1N Qb3 Nd3 Ba7 Nh2 Nc1 e2 Bb6 e1N Be2+ Kf2+ Qd5 Ng2 N1b3 Ndf4 Bd1 Nge2 Qd3 Nfe6 g7 Ra3 Re1 Ng1 Ng6 Qg5 d8B Qf5 Kd6 Bd7 Bg5 Ba4 Nh8 Rf8 Re5 Qe4 Qb5 Qc2 Rd5 Rd8+ Kc6 Nh3 Kb7 Kg1 Nc1 Rb3 c4 Rg3 Qd7 Bb3 Bc3 Ba4 Na3 Bb3 Rb1 a1N Qd6 Ba2 N1b3 Qe4 Rb2 Nc2 Nb1 Na3 Na1 Qc2 Rb4 Ne3 Rb5 Bg2 Ra5 Kh1 Ra8 Ng1 Rc8 Bf3 Ka7 Ng2 Kb8 Bh5 Qd7 Be8 Qd6 Ba4 Qd7 Nd4 Qf5 Nde6 Qh3 Rg4 Qd3 Rg3
Kr1R4/2b5/b1k1P1P1/B2n1qBn/1P1n4/R3bQ1b/1qNB2N1/R1bBR3 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 g5 h3 Ra6 h4 Rg6 gxf5 exf4 Bg2 g4 Bf1 Rg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 Kf2 Kd7 e4 c5 b4 h5 d4 c4 b6 c3 g6 a4 f6 f3 Ke3 g3 d6 g2 b7 c2 f7 h4 d5 a3 Kd4 f2 Kc5 h3 e5 h2 Qf3 a2 Na3 Nc6 b8B Qf6 Kb6 Qe6 Be2 f1B Nh3 g1N Bd1 Bh6 f8R Nce7 Ka7 Ne2 Nf4 Bh3 Bd2 c1B Bc7 Qf5 Ba5 Ba6 Ng2 Nd4 Ra8 Nf6 Re1 h1Q Nc2 Rb8 e6+ Kc8 Rb1 a1B Rb3 Bab2 Ra3 Be3 Ra1 Nh5 Ra3 Ng8 Ra1 Ngf6 Ra3 Ne8 Ra1 Nc7 d7+ Kd8 Ra3 Ke7 d8B+ Kd6 Bg5 Qh2 Ra1 Ke5 d6 Nd5 d7 Kd6 d8R+ Kc6 Bc3 Bf4 Ra3 Bce3 Bd2 Bc7 Rh8 Rb5 Rad8 Bc1 Ka8 Ng3 Rh4 Nh5 Rg4 Rb6 Rg3 Rb5 Ra1 Rb8+ Ka7 Qh1 Qf2 Ng7 Bf3 Bb2 Re2 Qc1 Re1 Bef4 Bd1 Nh5 Rga3 Be3 Qf3 Qb1 Rf8 Bc1 Rd8 Rb6 Ka8 Qb2 Rb1 Rb7 Rba1 Rb8+
1N6/2PN1bR1/nBb4r/1bRQ1q2/3n1P1b/Pb2N2R/R1Bk3q/nK4N1 w - - 0 1 legal: proof: b4 c5 d4 g5 dxc5 a5 e3 f5 f3 f4 exf4 axb4 fxg5 b5 g4 Bb7 h4 Bg7 f4 Be5 h5 Nf6 g6 Ng8 g5 Bg7 h6 Bf8 Qf3 Bc8 Qg4 Ra6 Qd1 Rf6 Bd3 Rf7 Bf1 Rg7 hxg7 Qc7 Rh2 Qb6 Rh1 Qd8 Kd2 h5 c4 e5 Kc2 Ke7 a3 Ke6 c6 Kf5 c5 Ke4 c7 d5 c6 h4 Be2 b3+ Kb2 b4 Nf3 d4 Bb5 d3 Rh3 d2 Rh1 Ke3 Rh3 e4 Rh1 h3 Ba6 h2 Nc3 Nh6 g8R Nf5 g7 Be7 g6 Bd7 c8R Bh4 c7 Rh6 Bd3 Bb5 Ng1 Na6 Ra2 Qg5 Rcd8 Qg2 Rd5 Qe2 Kb1 b2 Kc2 b1B+ Kb2 b3 Re5 Kf2 Nd5 e3 Ka1 Bc2 Bb2 Bb1 Bd4 Bc2 Be4 Bcd3 Bb6 Bdc4 Ne7 Be6 Rc5 Bf7 Nd5 b2+ Kb1 Qg4 Kc2 e2 Ne3 b1B+ Kb2 e1N Qb3 Bc6 Qd5 Bd3 Ka1 Bdb5 Kb1 Nc2 Bd3 Na1 Bc2 Ke1 Rd8 Qh3 g8N Nb4 g7 Nd4 Rd7 Qf5 Nf6 Bh5 g8N Na6 Rh7 Bf7 Rg7 Ba8 Ne7 d1B Bd3 Bb7 Nc6 Bb3 Bc2 Kd2 Nd7 Ba8 Ncb8 Bac6 Nh3 B3c4 Rf1 Bb3 Rf3 h1Q+ Ng1 Qg2 Rh3 Qh2
2bQ3q/3B1kr1/1N1q4/1B1r1Pb1/2BNqRr1/P2nR2K/1q1NPb2/N4B2 w - - 0 1 legal: proof: f4 e5 g4 a5 b4 c5 bxa5 f5 d4 h6 dxc5 Nc6 fxe5 Nce7 Bg5 hxg5 Qd2 f4 Qd1 Nf5 gxf5 Qc7 Kd2 Qb6 Ke1 Qd8 Kf2 d5 Kg2 b5 h4 f3+ Kh3 b4 c4 f2 h5 g6 a3 d4 h6 b3 a6 b2 h7 d3 c6 d2 c5 Bd6 c7 Nf6 e6 Ne4 a7 Be7 c6 Nc5 Nf3 Nd3 Nd4 Rg8 h8N Rg7 Nc2 Kf8 Nf7 g4+ Kh2 g3+ Kh3 g5 Nd6 g2 Nb5 g1R Nbd4 Bf6 e7+ Kf7 Rh2 Rb8 a8N Rb5 Nb6 Rg4 Rh1 Rd5 e8B+ Kf8 Bd7 Kf7 Rg1 Qe8 Rg3 Qe4 Re3 Be7 Qe1 d1Q Qa5 Bd8 Nd2 b1Q Qa8 Qbc1 Rb1 Bf6 Rb4 Qb2 Na1 Bd8 Bg2 f1Q Ra4 Qff4 Bf1 Qfe5 Rb4 Bb7 c8B Be7 c7 Qd6 Nab3 Qda1 Bb5 Bd8 Bcd7 Bc8 Bc4 Qba2 Qb7 Rf4 Nc6 g4+ Kh2 g3+ Kh3 g2 Bb5 g1B Rd4 Qe8 Rc4 Rfg4 Rf4 Qae5 Na1 Bh4 Nd4 Bg5 Bc4 Qd8 Bdb5 Qe4 Qc6 Q6e7 Qd6 Bf2 Qd7 Qf8 Qd6 Qb2 Qd8 Ba6 c8B Qd6 Bcd7 Bc8 Qc7 Qfe8 Qd8 Qh8+
3Bb1RR/2R1n3/Bknb4/NB1rp2r/5P2/4R1KP/1Br2P2/1q1qNnQ1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 a4 b5 axb5 d5 c4 f5 cxd5 f4 e3 Na6 exf4 Nb8 d4 Kd7 d6 g5 h3 c5 b6 Kc6 b7 e5 d7 c4 a6 g3 d5+ Kc5 a7 c3 d6 c2 Na3 g2 Nf3 g1Q Bb2 c1R Nc4 g4 Na5 g3 Ke2 g2 Ne1 Qg5 Kf3 Ne7 d8R Rh5 d7 Kb6 Ba6 Nbc6 Ra3 Qf5 Kg3 Qb1 Re3 Rc2 b8R+ Bb7 Bb5 Qf1 Rbc8 g1N Rc7 Nf3 Rg1 Nd2 Ba6 Rb8 a8B Qd3 Re8 Rd8 Bb5 Bc8 Bb7 Qd4 B7a6 Nf1+ Kf3 Bb7 Rg8 Ba8 Qc1 Qd1+ Kg2 Ng6 Rh8 Bd6 Ref8 Nge7 Rfg8 Re8 d8B Bb7 Ba1 Bc8 Bb2 Bd7 Qd2 Rf8 Qe2 Rf6 Qg4 Be8 Qg5 Bc5 Qg3 Rd6 Qh2 Rd5 Qg1 Nd2 Kh2 Bd6 Kg3 Nf1+
B1K1B1b1/2q3kq/1R2Pr2/r7/R1Nbprr1/BB1PR3/P2Nq1QR/7n w - - 0 1 legal: proof: e4 e5 b4 d5 h4 g5 hxg5 a5 c4 axb4 cxd5 f5 exf5 Nd7 Na3 Nc5 Nb1 Ne6 dxe6 Be7 Rh6 Bc5 Rh1 Bf8 Ke2 h5 Ke3 c5 Ke4 b5 f4 h4 g4 h3 g6 c4 g7 h2 g5 b3 g6 b2 f6 c3 f5 b4 f7+ Ke7 f6+ Kd6 Qf3 b3 Qg2 c2 Na3 b1R Nf3 b2 Bc4 Ne7 g8B Ra5 d3 Nf5 g7 Bd7 Bh7 Be8 g8B Bg7 f8R Qc7 f7 Ke7 Nd2 Kf6 Re1 h1Q Bb3 Qh5 Re3 Qe2 Nac4 Qe7 Bg6 Rh6 B8h7 Bh8 Bh5 Qa7 B7g6 Kg7 Bg4 Qc7 B6h5 Rf6 Bf3+ Kh6 Rg8 Qa7 f8R Bf7 Rg7 Bg8 Rg4 Qh7 Rb8 Bg7 Rb5 Ng3+ Kd5 Nh1 Kd6 Bh8 Bg6 Kg7 Kd7 Rf4 Ba8 e4 Rb4 Rf6 Rh4 Rf4 Rh2 Rf6 Nf3 Rf4 Ra4 Rf6 Bd2 Rf1 Kc8 b1R Bb4 c1Q Nd2 R1f4 Be8+ Rg4 Bd6 Qc3 Bb4 Rbf1 Rb1 R1f4 Ba3 Rf8 Bc2 Kf6 Rb6 Rf7 Bd1 Kg6 Bb3 Bd4 Rh4 Kg7 Rh2 Qb2 Nd6 Qc1+ Rc6 Qc5 N6c4 Qa7 Rd6 R7f6 Rb6 Qc7+
1qRN2B1/b1N3B1/b1P5/1P2B3/2Qp2NP/k1n3p1/rr2B2N/rq1R1Kq1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 a4 Nc6 axb5 a4 Be2 Ra6 Bf1 Na5 bxa5 Ra8 f4 d5 c4 Kd7 h4 Kd6 f6 Kc5 f5 Kb4 a6 g5 f7 e5 f6 a3 c5 e4 a7 g4 h6 a2 h7 e3 Nd2 e2 Nc4 d3 Ne3 d4 Qa4+ Kc3 Nf3 g3 Nh2 Qa5 Neg4 Ne7 Bf4 Qd8 Be5 Kb2 Rc1 a1Q Qc4 Ka3 Rd1 Rg8 h8B Qb1 Bg7 Ba6 Rc1 Rc8 a8B Nd5 Bb7 Be7 f8N Nc3 f7 Qc7 Bc6 Qb8 Bd5 Bd8 Rg1 Bb6 Ne6 Ba7 f8N Rc7 Rh1 Rf7 Rg1 Rf2 Nc7 Rg2 Nfe6 Rf8 Nd8 Rff2 Kd2 e1R+ Be2 Qb3 Rc2 Ra1 Rcc1 Qb1 Ke1 Qb3 Bf1 Rfa2 Bg8 Rgb2 Be2 d2+ Kf1 d1Q+ Kg2 Qd3 Kf1 Qb1 Rd1 Qb7 c6 Qb8 Rg2 Qb4 Rf2 Qe7 Rf8 Qg5 Nb7 Qd2 Rc8 Qe3 Nd8 Qg1+
1QBRrr2/1b4rk/p7/R2pR3/2PbN1rN/2NP3R/P3Kq1n/r1B2N2 w - - 0 1 legal: proof: g4 h5 gxh5 c5 e4 f5 exf5 c4 b3 Rh6 bxc4 Rh8 f4 b5 c3 b4 Ke2 bxc3 Kf2 Nc6 Ke1 Nb8 Na3 e5 Nb1 e4 Ba3 Nc6 Bc1 Ne5 fxe5 Bb7 Qc2 Ba6 Qd1 Bc8 h4 Kf7 d3 d5 f6 g5 e6+ Ke8 h6 g4 h7 e3 h5 c2 f7+ Ke7 h6 Kf6 e7 Kg6 e8N e2 Nd2 g3 Nd6 g2 Rh3 Qb6 N6e4 Bb4 f8R Rb8 Rd8 Nf6 Rb1 Be7 Rb5 a6 Ra5 Re8 h8N+ Kh7 Ng6 Bb7 Nh4 Bc5 Re3 Ng4 Rh3 Kh8 h7 Nh2 Re3 Kg7 h8R Bd4 Rh3 Rg8 Rh5 Qb2 Re5 Kh7 Ra4 Rg4 Ra5 Bc3 Kf2 e1R Ne2 g1R Bg2 Rc8 Nf1 Ra8 Qd2 Bd4+ Qe3 Qb6 N2c3 Qa7 Bf3 Rg7 Bh5 R1g4 Be8 Rc8 Bd7 Ra8 Bc8 Qc5 Bb2 c1R Ba3 Ra1 Bc1 Rd1 Ke2 Re1+ Kd2 Qf8 Qg3 Re3 Kd1 Qf2 Qf4 Rf3 Qf8 Re3 Qd6 Rf3 Qb8 Rf8 Bf5+ R7g6 Qc7+ Kh8 Rd7 Rad8 Qb8 Rde8 Rd8 Kh7 Bc8 Qf3+ Kd2 Rg7 Ke1 Qg3+ Ke2 Qf2+
kn3r2/1R2Q2B/bP1p1n2/pN1P3K/R1rbq3/2BN4/q1NP1p2/3B1N1B w - - 0 1 legal: proof: b4 c5 bxc5 b5 c4 h5 g4 e5 gxh5 b4 f4 exf4 a3 Ke7 axb4 Ke8 b5 Qg5 Ba3 Nc6 Bc1 Qd5 cxd5 Nb8 Kf2 Kd8 Kf3 Kc7 Kg4 Kb7 h4 g5 e4 a5 b6 f6 h6 f3 h5 f2 e5 Ra6 e6 Ka8 h7 Bd6 h6 f5+ Kh5 g4 e7 g3 e8B g2 c6 f4 c7 f3 Bb2 Bf8 Ra4 Ne7 Na3 Rg8 h8N Nbc6 h7 Ra7 Qe2 Ne5 Bc3 Ng4 Nf7 Bg7 h8N Ne5 Ng6 Bb7 c8B Ba6 Nc2 Bf6 Nf4 N5c6 Nd6 Bd4 Nb5 d6 Nd3 Rc7 Bg4 Nb8 Bg6 Rf8 Bh7 Ng8 Qe7 Rc4 Ne2 g1Q Bg2 f1Q Ng3 f2 Bd1 Qe1 Nf1 Qe4 Bgf3 Qg3 Rg1 Qgf4 Bh1 Qfe3 Rg7 Qe1 Be2 Qa1 Bd1 Qa3 Qe5 Qa1 Rb7 Qa2 Qe7 Nf6+
1nr5/p1n2BNk/1R1Bp2n/QR2N3/2P2rR1/2PqRP2/1b2N1pN/1r5K w - - 0 1 illegal: No possible last move
1R2B3/ppP1qBQ1/2n3P1/6P1/q3q2r/1p1R1R2/Bnr2NR1/BN2kb1K w - - 0 1 illegal: No proof kernel
1N2b1RK/4B3/RP1brp2/nPpQ1R2/3Nq2R/1b1P2Np/1n2Bb2/1N2k3 w - - 0 1 legal: proof: f4 b5 a4 a5 axb5 d5 c4 e5 h4 g5 hxg5 exf4 cxd5 c5 Rh5 Ra6 Rh1 Rc6 dxc6 Be7 Rh4 Bd6 Rh1 Bf8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kh5 Kc4 e4+ Kb4 g4 a4 e5 a3 g6 h6 g7 a2 b6 f3 c7 f2 g5 Nd7 e6 Ne7 g8R Nb8 g6 Nec6 e7 Bd7 c8R Nd4 e8N Nb5 g7 Bd6 Nf3 Na3 Nf6 Qe8 Nd4 Qe4 Rcf8 Be8 Nd7 Nc6 Rh4 Nc4 Be2 f1B Nb8 N6a5 d3 Bh3 Qh1 Be6 Bg5 Bd5 b3 Nb2 Be7 Bc4 Qg2 Rh7 Qg5 Rh8 Qd5 Rh7 Na3 Kc3 b4 Kd2 b5 Bb3 Nb1+ Ke1 Rh8 Nb7 g8N Na5 Nf6 Rg7 Rhg8 Rg6 Nfd7 Re6 Nf6 Qg2 Ne4 Qh1 Kg4 h5+ Kg5 Qg2+ Ng3 Qe4 Rg4 h4 Rf4 h3 Rh4 Re5+ Kh6 Re6+ Kg7 f6 Kh8 Kf2 Rg5 Ke1 Rf5 Bc2 Rg8 Bb3 Nc3+ Kd2 Rc1 a1B Rc2+ Ke1 Nb1 Na4 Rc4 Bc3 Rb4 Nb2 Ra4 Bd2 Ra1 Be3 Ra2 Bf2 Ra4 Nb7 Ra6 Na5
N2BK1q1/3NpBbb/P2p3R/b3B2N/P4N1R/2Q3b1/B1pq1k1P/5rn1 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 c5 g4 hxg4 bxa5 b5 Qf3 b4 Qd1 Na6 d3 Rb8 d4 Rb5 cxb5 c4 Bd2 Rh7 Bc1 Nc5 dxc5 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 g5 Kd5 c3 f4 d6 Kc6 b3 a6 g3 b6 g4 b7 b2 b8B c2 Qe1 g2 Na3 b1Q Bb2+ Kf7 f6 Kg6 f5+ Kh5 f7 g3 f6 Kh4 Bc4 Qd1 Nh3 g1B Bc7 Rh6 Nb5 Bd4 Rf1 Bg7 f8N Bh8 f7 Be3 Rf6 Rh7 Rh6+ Kg4 Ng6 Kf3 f8N Rf7 Be5 Bf2 a4 g2 Ba2 g1B Rb1 Qd3 Qc3 Bf5 Rb4 Bg7 Rbh4 Nf6 Ba5 Ng4 Nc7 Rf6 Na8 Bg3 Bb6 Qc8+ Bc7 Qe6 Bd8 Nf2 Kc7 Ke3 c6 Qg8 Bf7 Be4 Kd7 Ke2 c7 Qd2 c8B Rf4 Nh8 Bh7 Ke8 Rf3 Ng6 Kf1 Ng5 Nh3 Ne4 Bb6 Nf6 Ng1 Bce6 Ba5 Nf4 Ke1 N6h5 Rf1 Ba2 Kf2 Bg6 Qe6 Nd7 Bf8 Nhf6 Qb3 N6h5 Qg8 Bgf7 Bg7+
4B1r1/1PK5/2BRq1B1/1Nk5/Rp2qB2/p3rq1P/Pr1Q3p/2N1RrnR w - - 0 1 illegal: No proof kernel
b4r2/4QNKn/1qkqP3/b1BN1bn1/2n3N1/RP1BPB2/2bb1B2/2r1NR2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Kd7 Kf3 a5 Ke4 h5 Kf5 c5 g4 a4 d4 h3 g5 h4 e3 a3 d6 c4 d5 c3 g6 h2 b6 a2 b3 h3 g7 c2 b7 Nh6+ Kf4 f5 g8B Nf7 Nc3 Ng5 Bd3 Qb6 Ba3 c1B Nf3 Bd2 Rf1 h1B Ne1 h2 Bc5 Be4 Bf7 h1B Bh5 Bhg2 Bf3 Rh1 Qc1 Be7 Qa3 Bd8 Qb4 Qa7 Qa3 Ba5 Qb4 Qb6 Qa3 Nc6 b8B Nh7 Bc7 Nd4 Bb8 Nf6 Kg5 Ne6+ Kg6 Ng5 Kg7 f4 Bc7 Nfh7 Bd8 Nh3 Bh4 N3g5 Bf2 Bf5 Qb4 Bb7 Qe4 Rf8 Qb4 Ba8 e6+ Kc8 d7+ Kc7 d8N Qd6 Bh5 Bge4 Nc6 f3 Ne5 Qb6 d6+ Kb7 Bb5 Bc2 Ng4 Rg1 Be2 Kc6 d7 Rh1 Nd5 Rg1 Rb1 a1Q+ Rb2 Qb1 Bd3 Qd1 Ra2 Rh1 Ra3 Rg1 Qd4 Rh1 Qf6 Rg1 Bg3 f2 Qe7 Rh1 Rg1 f1N Bf2 Nh2 Rf1 Nhf3 Bc4 Ne5 Bd3 Nc4 d8N+ Kb5 Nf7 Kc6 Ndf6 Qf3 Nd5 Qg3 Nh2 Qf4 Bf3 Qd6 Ng4 Qa6 Ng2 Qb6 Rfa1 Re1 Rd1 Re2 Rg1 Re1 Rf1 Rb1 Ne1 Rc1
B2BnNkN/q1R5/1N2P1P1/2Bb2NP/3n1bK1/nq2Br2/Q1r2nR1/2r4n w - - 0 1 illegal: No proof kernel
1r1QqN1b/1P3q1P/1R2b1KB/N1qq1rn1/P3n3/4BRR1/1q6/R1rBkB2 w - - 0 1 illegal: No possible last move, all moves rejected
bb2R3/n1R2B2/nPB4R/N2RBrK1/q2r3B/1P1q3q/qNkP4/Q1b4r w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 f4+ Ke4 d6 e5 b3 c5 d7 a5 b6 h5+ Kh3 a4 g4 a3 g5 c4 g6 a2 f6 c3 g7 c2 f5 Na6 f7 Bd6 f8R Ne7 g8B Bb8 f6 Nc6 f7 Na7 Nf3 Bb7 Bg2 Kd3 Ba3 c1B Qf1+ Kc2 Bd6 e4 Nc3 e3 Re8 e2 f8R e1Q Na4 Qe4 Nb2 Qa4 Bf7 Be4 Rb1 a1Q Ne5 Q1a2 Nec4 Rg8 Bf4 Rg5 Na5 Rf5 Be5 Bc6 Rh8 Bb7 Rh6 Bc6 Kh2 h3 Kg3 h2 Rd6 Be4 Rd5 h4+ Kg4 h3 Bf3 Qc7 d8B Qc3 Bh4 Qd3 Rg1 h1Q Rg3 h2 Rh3 Rf6 Qe1 Qhf1 Kg5 h1R Rh2 Qh3 Ra1 Qb1 Ra3 Qa2 Qg1 Qac4 Ra4 Qcd4 Rc4+ Q3c3 Bf2 Nc8 Rdd8 Qh6+ Kg4 Nc7 Nb7 Rf5 Bd6 Ra4 Be5 Na6 Rc7 Na7 Na5 Qhe3 Rh6 Ba8+ Bf4 Qcc4 Bh4 Qdd3 Bc6 Qb5 Qe1 Rd4 Rd5 Qba4 Qf1 Rf6 Kg5 Qh3 Be5 Rf3 Nbc4 Bb2 Qa1 Bc1 Nb2 Rf5+
RRNn1qb1/RBrK1Pq1/6RP/3n2rr/5B2/2N1b1P1/qk1bQrB1/4B3 w - - 0 1 illegal: No proof kernel
1K2br1R/3r3N/PBB5/1B5P/Bq1Rn2n/RQ1N4/1rPnn2k/2n1R1bn w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Ke3 Ke6 Kf4 d5 a4 f5 e4 g5+ Kg3 b5 h4 d4 a5 g4 Kf4 b3 h6 b2 h5 g3 h7 g2 a6 b4 c6 d3 c7 b3 Qe1 d2 Nf3 d1N Qd2 g1N Qa5 Nh6 Rh3 Qd4 Qd2 Bc5 Be2 Rd8 h8R Nc6 Ne1 Bd7 c8R Qb4 Qc3 Na5 Nd3 Be8 Nd2 b1R Nf3 b2 Be3 Rd7 Rd8 Nb3 Ra3 Nc1 Rh1 Nf2 Qb3+ Ke7 e6 Kf6 e7 Ba7 Rh2 Nh1 Ng5 Rb8 Bf3 Rc8 Bb6 Nge2+ Ke3 Ra8 Rg2 Rb8 Rg1 Rc8 Bg2 f4+ Kf3 Nf5 Re1 Nh4+ Kg4 f3 Nh7+ Kg7 Kg5 f2 e5 f1N e6 Nfg3 Bc6 Ne4+ Kg4 N2c3 Kf4 Kh6 Ke5 N3e2 Bb5 Rb7 Rd4 Rd7 Nf6+ Kg5 Nh7+ Kg4 Bc6 Bf7 e8B Kg3 e7 Kh2 Bb5 Rb7 Bed7 Rf8 Bdc6 Be8 Ba4 Rc7 Bcb5 Rb7 Kd5 Rd7+ Kc6 Rd8+ Kc7 Rd6 Kc8 Rd7 Ba5 Bb6 Kb8 Bc5 Rd6 Bg1 Bb6 Ra1 Rd4 b1N Bc6 Nbd2 Bcb5 Bf7+ e8B Rb1 Ba5 Rb2 Bd8 Rd5 Bc6 Be8 Bb6 Rd7
B1nBRN2/rrq4N/B3nbR1/1nPr1B2/3Rn3/8/KP2Pkb1/Q1Rnr3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 g4 Ke6 c4 a5 Kc2 f5 Kb3 d5 b6 h5 g6 h4 c5 a4+ Ka3 h3 g5 d3 g7 f4 b7 Kf5 g6 Kg4 e6 Kg3 e7 d4 e8R h2 Nf3 d2 Rg1+ Kf2 Nc3 h1N Na2 d3 Qb3 d1N Nb4 d2 Ne5 f3 Ka2 a3 Rg3 Rh5 Qd5 Be7 Bh3 Nc6 b8R Bf6 Bf5 Nd4 Nd7 Qc7 Nf8 Ne7 g8B Bb7 g7 Nc8 Rg6 Ne6 Bh7 Rg5 g8B Ng3 Qe4 Rh5 Qb1 Ne4 Nd5 Ra7 Bf7 Ba8 Rb4 Rb7 Rd4 Rg5 Rd8 Rh5 Be8 Rg5 Bb5 Rh5 Re8 Ndc3+ Kb3 d1N Bg5 a2 Ka3 Rh6 Ba6 Rh5 Bg8 Nb5+ Kb3 Be5 Bd8 Bf6 Qc1 Rg5 Rb1 a1R Bf7 Be7 Nf6 Ra2 N6h7 Bf6 Bg4 Rd5 Bf5 Kf1 Ra1 f2 Qb1 Ra5 Qa2 Ke1 Rc1 f1R Qa1 Kf2 Bg8 Re1 Bf7 Na3+ Ka2 Ra4 Bd3 Raa7 Ba6 N6g5 B7e6 Nb5 Bd7 Ne6 Bc6 Rd7 Bd5 Rd6 Bc6 Rd5 Rc3 Rb8 Qc1 N4g5 Rh4 Rd2 Qa1 Rd3 Rc1 Bb7 Bd7 Bg2 Bc6 Rd5 Ba8 Rbb7 Rd4 Ne4
NqkrRK2/1Nb2P1b/1RR5/n1P2r2/2N5/bn1N1BB1/3b1nP1/1b3nRQ w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 h5 Ke4 e5 Kd5 d6 f4 Kd7 b4 d3 c4 e4 f6 e3 g6 h4 f7 a4 f5 a3 g7 h3 f6 e2 b6 e1B b7 a2 c5 h2 b5 d2 b6 Nc6 b8R Na5 b7 Nh6 g8R Nf5 Nh3 Rh5 Rg1 h1N Nf4 Nhg3 Be2 Nf1 Na3 Bg3 Bb2 Bh6 Be5 Nd4 Bf3 Ndb3 Nd3 Rf5 f8N+ Kc7 Rb1 a1B f7 Bb2 Nc4 Ba3 Rg6 Bd7 Qe1 d1N Rf6 Ba4 Ke6 Nf2 Nd7 Bd2 Ndb6 Qg8 Re8 Rd8 Ke7 Qh8 Bc3 d5 b8N d4 Na8+ Kc8 Nc6 Bc7 Rd6 Qe5+ Kf8 Qh2 Nf4 d3 Be5 Be3 Rb2 d2 Nd3 d1B Bg3 Bd2 Rf6 Bc2 Rh6 Na1 Rb6 Bb1 Rd6 Bac2 Rg6 Nb7 N6a5 Nb3 Rgc6 Rf4 Nb4 Bh7 Nd3 Rf5 Nce5 Nd6 Nb7 Nc4 Qd1 Nca5 Nc4 Qh4 Ncb2 Qb4 Nc4 Qb5 Qc1 Qa6 Qd1 Qa7 Qe1 Qb8 Qc1 Bdb4 Qh6 Be1 Qh1 Bd2
n4Qqq/P1P2PRB/5b2/2N1BNR1/bkBrq3/1r1q1B1R/1n2R3/2q1q2K w - - 0 1 illegal: No possible last move, all moves rejected
1r2R1RK/Nq3RN1/1b2N1QP/3q1P2/P1n1q3/1q1nB2k/2NRr3/3Brbr1 w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 Kh4 d4 g5 a4 b5 f4 c5 h6 c4 h7 g4 d6 g3 f6 c3 d7 g2 f5 b3 f7 b4 d5 c2 d6 b2 Ra2 b3 Na3 b1Q Nb5 b2 Ne2 g1R Na7 Na6 Be3 c1Q Nd4 Rb8 Nc2 Nb4 Be2 Nf6 h3 Bh6 f8N Ne4 Ne6 Nd2 Ng7 Re8 h8R Ba6 Rg8 Nd3+ Ke6 Qc8 Kf7 e5 d8N e4 d7 Nc4 Nde6 Qd2 d8R Qb7+ Rd7 Kg3 h4 Bg5 h5 Bd8 h6 Bb6 Rh2 Bb5 Rf2 Kh3 Rf1 Ba6 Re1 Qa5 Kf6 Qad5 Rf7 Re7 Qd2 Qd1 Qb4 b1Q Qd6 Qb3 Bh5 Qdb1 Bd1 Ree8 Na1 Re7 Rd2 Bb5 Nc2 Ba6 Bf4 e3 Qc6 e2 Be3 Kg2 Kg6 Kh3+ Kh7 Bb5 Kh8 Ree8 Rf1 e1R Rf4 Re7 Rg4 Re2 Re8 Ba6 Nd8 Re5 Qg6 Re4 Nde6 Ree1 Bf4 R4e2 Be3 Nf2 Ncd4 Na5 Qg5 Qbe4 Nh5 Bd3 Nc2 Nc4 Bf4 Re3 Qf6 Bc5 Rgg8 Bb6 Qg6 Bf1 Nhg7 R3e2 Be3 Nd3
B1r5/1nP4K/bR2qn1b/PRr2R1B/2br1Q2/kBN2Pr1/qN2bR2/4B3 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 h5 Kd3 b5 Ke4 e5 a4 Ke7 g4 b3 c4 b2 f6+ Ke6 c6 b4 c7 h4 g6 b3 f7 h3 g5 h2 g7 Ba6 c8R Rh4+ Qg4+ Kd6 Kf5 e4 Kg6 e3 a5 e2 Nf3 e1Q Nfd2 Nf6 g8B Bh6 f8R Qe6 Nc3 b1R Bg2 b2 Bf7 Nc6 Ra2 Kc5 Qf4 d5 Rb8 d4 Rb6 d3 Re1 h1B Re5+ Qdd5 Rfb8 Bb5 Rf5 Kb4 c5+ Qc4 Be4 Nd8 c6 Nb7 c7 Ra1 Bc6 Bd5 f3 b1R Bb2 Rc1 Bfe8 Qd4 Nc4 d2 Ba3+ Kb3 Bb4 d1B Rf2 Qd2 Nb2 Bdc4 Be4 Bde2 B4c6 Nd7+ Kh7 Ba6 g6 Ra4 g7 Rh3 g8B Rg3 Bh5 Qdd5 Rbf8 Rc8 R8f7 Qd2 Rfb5 Qc2+ Rff5 Qb1 Nd5 Qa2 Be1+ Ka3 Bgf7 Rd1 Nc3 Rd5 Bg8 Rc5 Bd5 Bcd3 Bgf7 Rd4 Bb3 Bc4 Be8 Ne5 Bc6 Ng4 Be4 Nd6 Ba8 Nb7 Rg5 Rcd8 Rd5 Rc8 Rf5 Nf6+
1B1Q1R1q/n1R3n1/rP5N/n2KPN1P/2b1B1q1/NR1bpR2/2N4b/4r1kq w - - 0 1 illegal: No proof kernel
1r1B4/N2Bp1BN/K1b1QB1P/3n1R2/r2Pn3/q1bbRPR1/q7/1r1kq2R w - - 0 1 illegal: No possible last move, all moves rejected
1B1BR1n1/N2rp3/b1P2nqB/4rnPR/3R2Kb/rR1BkPN1/qq6/7Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 a5 b4 h5 g4 d5 c4 d3 b6 d2 b7 a4 c5 d4 c6 d3 f6 Kg6 f7 h4 b5 h3 b6 h2 Ra2 a3 Ne2 Qd4 Nbc3 Bg7 f8B Nd7 b8R Ba6 b7 Bf6 Ng3 Rh5 Nb5 Qb2 Bh6 Ra7 Qe1 d1R Bf4 d2 Bc7 Ra8 Ra1 a2 Bd8 Ra7 Rc1 a1Q Rc4 Qaa2 Rd4 Ra1 Kf4 d1N f3 Ne3 Bd3+ Nf5 Qg1 Rd1 Qg2 Ra8 Na7 Rd2 Rc8 Rd1 b8B Rd2 Rb1 h1Q Qh3 Qg2 Qh1 Kf7 g6+ Ke6 g7 Bh4 Nb5 Ndf6 Na7 Qc2 Rb3 Qcb2 Bb6 Rd1 Re8 Qgc2 Bd8 Rg5 Ra4 Kd5 Ra5+ Kd4 Re5 Ne3 Rc5 Rd5 g5 Re5 Rc4+ Kd5 Rd4+ Kc5 Bf1 Qg6 Bd3 Nf5 Rd6 Nd5+ Kg4 Kd4 Rd7 Ke3 Rd6 Nf4 Rd4 Nh5 Kh3 Ngf6 g8R Rd2 Rh8 Ng8 Nb5 Ra7 Kg4 Rd7 Na7 Rc2 Rbb4 Rc3 Rb5 Ra3 Rb3 Nf4 Bg7 Nd5 Rh5 Qd6 Bf8 Qg6 Bh6 Ndf6+
1r2N3/pNB1PRQb/3n1N2/3r1kNR/nq3b2/1P3B1q/K3PR2/2nbR1r1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 d4 Kd7 Kd2 f5 Kc3 c5 Kb3 h5 g4 f4 d6 Ke6 d7 c4+ Ka2 h3 b6 f3 g5 f2 b3 h2 g6 h4 d5+ Kf5 g7 c3 b7 c2 d6 h3 e6 Be7 Nf3 Na6 b8R Bb7 Bf4 Bg5 e7 Qb6 d8R Nf6 g8N Be4 d7 Rh5 Nc3 Nc5 Nb5 Na4 Bc7 Bf4 Bg2 f1R Rf8 Rg1 d8N Qb7 Rc8 Rb8 Qd4 Bd3 Re1 c1N+ Ka1 Qb6 Nb7 Bc2 Rf7 Bd1 Ng5 Qc5 Bf3 Qb4 Rh7 Ne8 Qg7 Nd6 Nf6 Rg2 Rhf1 h1B Rf8 h2 Rf7 Rg1 Rf2 Bg2 Rh6 h1Q Rh8 Qh3 Rh6 Rh4 Rh5 Bh1 Bd8 Rhg4 Nc7 R4g2 Nce8 Rh2 Bd5 Be4 Bc7 Bb1 Bc6 Rhg2 Bd5 Rg3 Bh1 Rd3 Bg2 Rd5 Bf3 Ke5 Qf8 Bg6 Qg7 Kf5 Kb1 Bh7 Ka1 Nd3 Ka2 Nc1+
k2Nb2b/2n1K1B1/1Q3PP1/q4BRp/1n4nr/1b1B3n/NP5N/rN1RBr2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 c4 Kc7 g4 Kb7 f4 a4 g6 a3 g5 a2 f6 e6 b6 d3 f7 d4 c5 d2 f5 d3 g7 Be7 f8B Na6 g6 Rb8 c6+ Ka8 c7 Bd7 c8B Be8 Qb3 d1B Bd2 Nc7 Be1 d2 Nf3 Nf6 g8N Bc5 Bd7 Bd4+ Kd6 e5 Nh2 e4 Bg7 e3 Nh6 e2 Nf7 Rf8 Rg1 Ng4 Qb5 Qg5 Nd8 Bb3 Be6 Rf6 Ke7 d1N Bc8 Ndf2 b7+ Ka7 Be6 Nh3 Qb4 Rc8 b8N Ka8 Nbc6 Rb8 Qc5 Rb4 Qb6 Ra4 Nb4 Bc3 Bd2 e1N Bd3 Nc2 Be1 Qd2 Bdc4 Qd5 Bd3 Qa5 Bd7 Nge3 Rg5 Ng4 Nd2 Bd4 Rd1 a1R Na2 Nb4 Nb1 Rf8 Bh6 Bh8 Bg7 Nc2 Bc8 Rf4 Bd7 Nb4 Be6 Rf1 Bc8 Rf6 Bd7 Rc6 f6 Rc4 Be6 Nh6 Bc8 Rh4 Bcf5 Ng4
r3B3/B2nbBK1/1R2PrN1/B3rQ1N/RqP5/P2bk3/1N2n1p1/2rb2nN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 Ke7 Kd3 Ke6 Ke4 b5 h4 g5 h6 f6 h5 b3 c6 b2 c7 d6 h7 b4 h6 g4 Na3 b1N Nh3 g3 Bd2 b3 Nf2 b2 Nc4 g2 Ba5 Ne7 Qd3 Rg8 h8B Ng6 h7 Nf4 Rh6 Nd7 Nh1 Ba6 c8N Qe7 N8b6 Rg5 Nd5 Nh3 e3 Ng1 Nf4+ Kf7 Nh5 Ke6 Kf4 d5 e4 d4 Bg7 Bb5 h8N Qb4 Ng6 Nc3 Bh8 b1R Nb2 f5 Qf3 Bc6 Bc4+ Bd5 Bf6 d3 Bfd8 d2 Bdb6 d1B Ba7 Be7 Bb3 Bc4 Qf1 Kf7 e6+ Ke8 e5 Bd3+ Bc4 Rc1 Qf3 Rg3 Qg4 Re3 Qg5 Re2 Qf6 Re3 Kg5 f4 Bd5 Nce2 c4 Re4 Kf5 f3 Qg5 Bf8 e7 f2 Ke6 f1R Qf5 Nb6 Kf6 Re3 Qf4 Kd7 Bf7 Kc6 e8B+ Kc5 Qf5 Be7+ Kg7 Kd4 e6 Rff3 Rh7 Rf1 a3 Re4 Rb1 Ke3 Rh8 Bd8 Qg4 Qb5 Bb8 Rd4 Bc3 Ng3 Bd7 N3e2 Na4 Rf6 Qf5 Ra6 Rb4 Ng3 Nb2 Re4 Ra4 Re5 Ba5 Ra8 Ba7 Be7 Rb8 N3e2 Bde8 Qc5 Rb7 Nd7 Rb6 Qb4
2b1k1Bb/nP3rnB/1R5N/1qb3nP/3KPRN1/2B2r2/1p2r3/RBQ1R1n1 w - - 0 1 illegal: No proof kernel
BBbq1b2/2b3R1/B1N2BNP/P1bn2R1/2r1QN1p/5P1q/bNn3r1/2k3K1 w - - 0 1 illegal: No proof kernel
2Q1B3/n2qBB1R/2RbPP2/kr3b1r/4PNRn/6BN/q3pqqK/2q1R3 w - - 0 1 illegal: No possible last move, all moves rejected
B5BN/1n1R2nP/k1n2RK1/n1Bq1rR1/BP3R2/2pq4/Nr1Qn1P1/bb6 w - - 0 1 illegal: No proof kernel
bq1rRR2/Bb2P1RB/5p1n/1n1B1rN1/Q4P1k/2rr3q/1NK1P1R1/3B3r w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 hxg5 b5 c3 b3 Rh4 b4 Rh1 b2 Rh6 b3 Rh1 Bb4 cxb4 Ra7 Na3 Ra4 Nb1 Ra8 Kd2 Ke7 f4 d5 a4 h5 g4 c5 g6 d4 g5 c4 g7 f6 g6 h4 e6 h3 a5 d3 a6 h2 a7 Bd7 b5 Nc6 b6 Nd4 b7 Nb5 b8R Nh6 g8B Bc8 g7 Bb7 Nh3 Qc8 Rg1 h1R Bh7 Rd8 Na3 b1Q g8B b2 Qa4 c3+ Kd1 d2 Bg2 Rd5 Nc4 Rf5 Ng5 Qd7 Rf8 Rd8 a8R Qdd3 Bd5 Qh3 Rf7+ Ke8 Re7+ Kf8 Re8+ Kg7 Rb8 Ba8 e7 Bb7 Bge6 Ba8 Bhg8 Kg6 Bh7+ Kh5 Bf7+ Kh4 Rf8 Qa2 Kc2 d1R Be3 Rd3 Ba7 Qa3 Rab1 Qd6 Rg2 Qc7 Rbg1 b1B+ Kc1 c2 Nb2 Ba2 Bb3 Bb7 Bfd5 Qe5 Ra8 Qb8 Re8 Rc3 Kd2 c1R Bd1 Bb1 Rf8 Be4 Re8 Ra1 Rf8 Rd3+ Kc2 Raa3 Re8 Qd6 Rc8 Qb8 Rf8 Rd6 Rce8 Rd8 Ne6 Ba8 Rg7 Bf3 R1g2 Bb7 Ng5 Ba8 Ba2 Bfb7 Bd5 Rac3+
3K1B2/nq6/7q/1bRRP1bQ/R1NPbN2/nrP2B1p/r3R1bB/1k2B2r w - - 0 1 illegal: No possible last move, all moves rejected
8/1r2kB2/rn6/PQN1rRbq/q4R1P/1N2p1N1/4RP1b/NnRbBbK1 w - - 0 1 illegal: No possible last move
1nQ1RN1B/1RK2n2/3Pq3/6Pk/N1Bq1Prn/rp6/6Nb/NBb1bB1b w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 b4 d6 b2 Kd5 h4 f6 Kg6 f7 h3 a5 e4 a6 e3 a7 c4 d7 e2 Nd2 e1B Rb1 h2 Ngf3 c3 Nh4+ Kh7 g6+ Kh6 g7 c2 g5+ Kh7 Qg4 Bc5 Ng2 Kg6 f8N+ Kf7 Nb3 Rh4 Na1 Nh6 g8B+ Kg7 Bd2 c1B Bc3 Nf7 Qe6 Qb6 d8N Rg4 Nb7 Qa6 Rg1 h1N Bh7 Bb6 Nc5 Ng3 Na4 Nf5 Qc6 Bd7 Qc8 Bc6+ Ke6 Nh4 d5+ Bd4 d6 Qb6 Bhd3 Bf3 Bc4 Qc5 Nd7 Kg6 Nf8+ Kh5 Rh1 Bdf2 Bh8 Bg1 Rh3 Bb7 Re3 Qd4 Re4 Bh2 Ke7 Na6 Kd7 Nb8+ Kc7 Bd5 Re8 Be4 Ne3 Bh1 Ng2 Be3 Rd1 b1Q Rc1 Qf5 Rb1 Qe6 Rb3 Nc6 Rb2 Bc1 Rb1 Rb8 a8B Rb6 Rb2 Nb8 Be4 Ra6 Bb1 Ra8 Re2 b3 Re5 Qb2 Rb5 Qd4 Rb7 Ra6 Nb6 Ra2 Na4 Ra3
Q1Nr3R/bn6/3p2b1/B2Nn2n/R3q1q1/2PPqB1B/1B1r1PN1/2K1Nk1n w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 g4 Kf7 g5 e5 c3 h5 g6+ Kf6 g7 Kg5 f6 Kf4 c6 a5 c7 e4 b6 a4 f7 e3 d3 h3 b7 a3 Nd2 h2 Ngf3 h4 Ne5 h3 Ke2 a2 Ke1 e2 Nc6 Qh4 Nb4 Nf6 g8B Qg4 Nc4+ Kf3 Kd2 Bc5 f8N d6 Nh7 Bf5 c8N Nbd7 b8B Ne5 Bf7 Bg6 Qa4 Nh5 Nc2 Ba7 Bc7 Rd8 Ba5 Rb8 Nf6 Rb2 Rb1 a1N Ne3 Ra2 Ng2 Rb2 Nd5 Nb3+ Ke1 Ra2 Ra1 Nc5 Kd2 Nb7 Be8 Rb2 Bc6 Ra2 Ba3 Rb2 Kc1 Ra2 Rg1 h1N Bb2 h2 Qa3 N1g3 Qa4 h1Q Qa3 Qhh4 Rh1 Qe4 Rh3 Qhg4 Rh2 Nh1 Rh3+ N5g3 Rh8 Nh5 Bb6 Bb8 Qa8 Ba7 Ba5 Bd4 Nge3 Ba7 Bh3 e1Q+ Nd1 Qeg1 Ne1+ Ke2 N1e3 Q1g3 N3g2 Q3f3 Ba3 Rd2 Bb2 Qfe3 Ra4 Qe4f3 Nde7 Qff5 Bf3+ Kf1 Nd5 Qfe4
1B4n1/Nb1n4/r1P2R1q/1R2N2n/P5qR/b1kBPQ1p/n1N1qR1K/2Nr4 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kf2 Ke7 Kg3 Ke6 c4 b5 a4 h5 c6 f5 g6 d5 c5 d4 g7 Kd5 e6 Kc4 c7 b3 e7 f4+ Kh2 b2 e8R f3 g4 b4 g5 d3 g6 f2 c6 h4 Na3+ Kc3 Nc2 b1Q Re5 b3 Ra2 d2 Rb5 Bb7 c8N b2 Na7 Qd3 e3 Qe4 Qf3 d1Q Bc4 Qa1 Bd3 b1N Ba3 Nd7 Bd6 Qg4 Bb8 Ba3 Rab2 Qe2 Ra2 Nh6 g8R h3 g7 Rh7 Rh8 Ng8 Rab2 Rh5 Ra2 Rd5 Rh4 Nd2 Rab2 Nb3 Ra2 Nc1 Rab2 Nh6 g8N Na2 Ne7 Ng8 Ng6 Qad1 Ne5 Qf4+ Qg3 Qh6 Qf3 Rd6 R2b4 Rd5 Rbf4 Rd6 Rf6 Rd4 Nc8 Ra6 Na7 Rd5 Kg3 Rd6 Rh2 Rd5 Rg2 Rd4 Kh2 f1N+ Kh1 Ng3+ Kh2 Rd5 Rf2 Rd6 Qf5 Qg4 Qf3 Nh5 Ne2+ Kd2 Ned4+ Kc3 Nb3 Qe2 Nc1 Rd4 Be4 Rd2 Bd3 Rd1
n1N5/1B3KN1/RqpN4/r1bB2r1/1Nq2R1n/qQR4b/2PR2PP/2kbb3 w - - 0 1 illegal: No proof kernel
2R1nBN1/b5P1/3rP2n/rq1R3Q/2R1pq1b/k1r1RBb1/1N2P2B/B5Kr w - - 0 1 illegal: No possible last move, all moves rejected
1N3q1r/rb1BbP1N/1B1N1n2/p1r3NR/1qq5/PkP4Q/6Bn/2B1rR1K w - - 0 1 legal: proof: h3 d5 h4 d4 h5 c5 h6 d3 cxd3 f5 e4 c4 exf5 c3 bxc3 gxh6 Ke2 h5 Ke1 h4 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 a5 g5 e5 d4+ Kd5 g6 b5 a3 h5 g7 e4 f6 e3 f5 b4 f7 e2 f6 Kc4 d5 b3 d4 b2 d6 Be7 f8N Bf5 d7 Nh6 g8B+ Be6 d5 Ng4 d6 Bd5+ Nf3 Nh2 Qd3+ Kb3 Be6 e1R f7 Ra7 Nh7 Qf8 d8B Nd7 Bb6 Nf6 d7 h3+ Kg1 h4 d8N Re5 Bd7 Bb7 Nfg5 Rc5 Qg3 Nhg4 Bg2 h2+ Kf1 h3 Nc6 Rd5 Nb8 Rc5 Rg1 h1Q Nd2+ Kc2 Nc4 b1Q Qf3 h2 Nd6 Qb4 Qh3 Kb3 Ra2 Qc4+ Re2 Qb4 Re5 Qc4+ Ke1 Qb4 Rf1 Qg1 Ke2 h1R Rd5 Qgd4 Kf3 Rg1 Kg3 Ne5 Kh2 Qdc4 Rf2 Rd1 Rf1 Neg4+ Kh1 Re1 Nf3 Qcb5 Rh5 Nh2 Nfg5 Q5c4
6nb/1q3Pnk/N2p1q2/2BQBbPn/3PN3/Nrr3Br/K5R1/N1B1r1R1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c6 b4 Qc7 b6 Bh6 b5 Bg7 b7 Bf8 b6 Qd8 Bb5 cxb5 g4 Kf7 f4 Kg7 c4 e5 g6 h5 c5 a5 c6 a4 f6+ Kh6 f5 e4 g7 a3 f7 e3 c7 e2 g5+ Kh7 f6 b4 Nf3 h4 Nd4 h3 Nb3 a2 Na3 h2 Rg1 h1N Rg2 Nc6 b8B Ba6 c8N Qe8 b7 Nd8 Be5 Bd3 b8B Ng3 Nb6 Ne6 Nd5 Nh5 Nc7 Bf5 Na6 Qc8 d4 Qb7 Kd2 e1R Qf3 Bd6 Bg3 Be5 f8B Ra7 Rb1 a1Q f7 Ra8 Bc7 Rc8 Bc5 Bf6 Bcf4 d6 Be5 Rc7 Qd5 Rc8 Ba7 Rc3 Bc5 Qa2+ Rb2 Qb1 Na1 b3 Rg1 Qe4 Ra2 Qf3 Rb2 Nh6 Ra2 b2 g8N b1R Rc2 Neg7 Ra2 Rd3+ Kc2 Rbb3 Rb2 Qf4 Kb1 Rdc3+ Ka2 Qf3 Ne7 Ng8 Rbg2 Bg4 Nf5 Qf4 Ne3 Bf5 Nd1 Qf1 Bh2 Qf3 Beg3 Qf4 Nf2 Qe5 Ne4 Qee7 Bh4 Be5 Bf2 Qf6 Bfg3 Qd8 Rf1 Nhf6 Re2 Nge8 Bb6 Kg7 Rg2 Rh3 Bf2 Kh7 Rfg1 Nh5 Bc5 Bh8 Be5 Qf6 Bfg3 Neg7
2NN3b/4PP2/n5b1/4bBRK/2pbnrBP/N1q4R/Nr1kBr2/5QBq w - - 0 1 illegal: No proof kernel
2NK4/2R1p1P1/5R1r/2n1qB1Q/BnnB2RR/1b1nPBPr/q3q3/3kb2N w - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Qg3+ hxg3 Bb7 Rh2 Ba6 Rh1 Bc8 Kf2 h5 Kf3 f5 Kf4 Kf7 Ke5 Kg6 b4 d5 c4 a5 e3 h4 c5 f4 c6 f3 c7 h3 b6 d3 b7 d2 b5 f2 b6 h2 Nf3 a4 Ng1 d4 Nc3 a3 Nh3 d3 Na4 a2 Be2 f1N Bb2 Rh6 Rc1 a1Q Bf3 Nf6 Nf2 Qa2 Bd4 Be6 c8B Ne4 Rc7 Na6 b8R Bb3 b7 Nec5 Nb6 Nb4 Qe2 d1N Bf5+ Kg7 g6 d2 g5 Nb2 Rbc8 d1Q b8R Nd2 Rf1 Ra6 Nh1 Rh3 Re8 Qe1 Nc8 Rf6 Qb5 Qe2 Ra8 Rd6 Ra4 Ra6 Rd8 Rb6 Rd6 Rc6 Rf6 Ndc4+ Kf4 N2d3+ Kg4 Kg8 g7 Ra6 Rh6 Kf7 Rh4 Rf6 g8B+ Kg7 Bd7 Kg6 Bge6 Bg7 Bc6 Rf8 Bcd7 Rh8 Rf2 Rh6 Bf5+ Kf7 Qa5 Be5 g6+ Kf6 Bc3 Bd4 g7 Ke5 Bb2 Bc3 Kg5 Rh5+ Kg6 Rh8 Kf7 Rh6 B3g4 Kd5 Ke8 Bd2 Bd4 Be1 Bfe6+ Ke4 Rf6 Qab2 Bgf5+ Kf3 Kd8 Qa2 Bb5 Qf1 Bc6+ Ke2 Bed7 Kd1 Bf3+ Qfe2 Bfe6 Nca6 Qh5 Nac5 Bf5 Kc1 Nf2 h1Q Bb5 Qhf1 Nh1 Qeb2 Bbd7 Qfe2 Rg4 Nc2 Rb4 Kd1 Ba4 Qba1 Rbb6 Qc3 Rbe6 Qa5 Ree4 Ncb4 Rh4 Qb5 Reg4 Qb8 Ra7 Qf4 Rc7 Qe5
r2q1kb1/2PR4/RBKr2q1/1Bn5/BR4RN/p1r1Q3/n2bP1P1/1Br2q1N w - - 0 1 illegal: No possible last move, all moves rejected
3kqBrb/PQ2p3/P2P3n/r1qBN1N1/8/K3RN2/1RrBN1n1/1b1r1n1B w - - 0 1 illegal: No possible last move
3qn2N/pb1R2n1/2Pb4/2P1k1KP/q1R1rn2/4Q1N1/r1b2n1R/2BBNNR1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kf4 d5 h4 e6 c4 g6 b4 d4 h5 d3 c6 d2 c5 g3 b6 g2 b5 Qe7 b7 Na6 b8R Bb7 b6 Nh6 Rh2 Qd8 Qf3 d1B Ne2 g1N Ng3 Nc7 Qe3 Ne8 Be2 Rg8 Nd2 Bc2 Bd1 Be7 Ndf1 Nh3+ Kf3 g5 Ra4 e5 Rc4 Ba6 Rb7 Bd6 Rd7 Nf4 b7 Rf8 b8N Bb7 Na6 Rg8 Qb3 e4+ Ke3 g4 Nb4 Ke5 f6 Rg6 f7 Re6 f8R Rb8 Rg8 Nf5+ Kd2 Nfg7 Nd3+ Kf6 Ne1 Ke5 Ke3 Re7 Nf5 g3 f3 g2 N5g3 g1N Qd3 Nfe6 Qe2 Nh3 f4+ Kd5 f5 Nf2 f6 Ke5 f7 Nf4 f8N Re6 Kd2 e3+ Kc3 Kf6 Ng6 Re4 Nh8 Ke5 Qd2 e2 Qe3 Ba8 Kd2 Rb2 Qd3 Bb7 Qb3 Rd4+ Ke3 Re4+ Kf3 Ra2 Qe3 Nh1 Ng2 e1Q Kg4 Qea5 Ne1 Qa8 Kh4 Qa4 Kg5 Qd8+ Kg4 Qe7 Nf5 Nge6 Rg5 N6g7 Kh4 Nf6 Rg1 Qd8 Kg5 Nf2 N5g3 Nfe8+
1nnRN2k/2n2rq1/1nrBPB2/R1B1P3/pK2R3/PrNb2B1/5R1b/5r1Q w - - 0 1 illegal: No possible last move, all moves rejected
3k1n1r/Kr1bn1P1/1P4BN/1p3q1N/1N2Qr2/1rb1R3/n5PR/BNBn3B w - - 0 1 illegal: Other
5Q2/2qn1rb1/n1P2B1R/RbPN1k2/N1nbpb2/3RBqR1/4P3/1Bb3BK w - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 g5 h4 a5 a3 f5 a4 Ra6 axb5 Rg6 Nf3 fxg4 Ng1 g3 Na3 g4 Nb1 Rg5 hxg5 Ba6 Rh6 Bb7 Rh1 Bc8 b4 Kf7 c4 Kg6 f4 h5 c6 e5 b6 d5 c5 g2 Kf2 h4 b7 h3 b5 d4 b6 d3 Nc3 a4 Be3 h2 Nh3 g1B+ Kg2 a3 Na4 Kf5 g6 d2 g7 Na6 b8R a2 b7 Nf6 g8R g3 Qe1 d1N Qf2 Ke4 f5 Nb2 Nf4 Qc7 Nd5 Nd7 f6 Bg7 f7 Nc4 f8B Rh7 Be7 Bh6 Rd1 a1B Qf8 Rf7 Bf6 Bf4 Ra8 Kf5 b8B e4 Rd3 Bb2 Rg4 Bc1 Ra7 Nb4 Ra5 Na6 Rg6 Bf2 Rg1 Be1 Rh6 Bc3 Kh1 Bb7 Be7 Bg7 Bf6 Nb4 Bg2 Ba6 Bf3 Bb5 Bh5 Re7 Bf7 Na6 Bg8 Rf7 Rf1 Qa7 Rf3 Qb6 Bbe5 Qb7 B5d4 Qc7 Bg1 Nb4 Kg2 Na6 Bde3 h1Q+ Kf1 Qh5 Kg2 Qg5 Kh1 Qg4 Rf2 Qh3+ Rh2 Qg4 Rg2 Qf3 Bgf2 Ke6 Bd2 Nd6 Ndc3 Kf5 B2d4 Re7 Ba2 Nc4 Bb1 Rf7 Nd5 Qh5+ Rh2 Qg4 R2h3 g2+ Kg1 Nb4 Rhg3 Na6 Kh2 g1B+ Kh1 Be5 Bf4 Bge3 B4g5 Bed2 Bg1 Qf3+ Rg2 Bdc3 Bd2 Bcd4 Bde3 Qf1 Rg4 Bf4 Rg3 Qf3+
3qr2r/1K1RR1p1/2q3BP/1N2bQB1/2n2RnB/2R1qNPq/3r1r1P/k1B5 w - - 0 1 illegal: No proof kernel
3q2N1/Rrb1R3/b1Kp2k1/4R1Bb/1N1B1PnP/4BBn1/P1n2p2/Qr2r2R w - - 0 1 illegal: No proof kernel
RBn2n2/NN3N1P/r1Bpb1b1/3r3k/1R6/P1p2K1n/2R1Pb1N/RQ4qr w - - 0 1 illegal: No proof kernel
k1N1n3/PqrR1NK1/2Rn1P2/BP1b4/3R3B/1rp5/2n1p3/QRBrbb1B w - - 0 1 illegal: No possible last move
1N1r1BR1/n4Q1B/nN1B1q1R/2K1B3/Prb1R3/4pq1p/RP1k2P1/1nb2q2 w - - 0 1 illegal: No proof kernel
3QN1B1/1b2rn2/2B2P2/pn1pBP1K/1N1B3q/2bRP2R/1Rqb4/2krR1q1 w - - 0 1 illegal: No proof kernel
1B3B2/r4QN1/nNkqPK2/1bN5/1RqR1p1P/b2n1Pq1/1N1n3p/1B2r1B1 w - - 0 1 illegal: No proof kernel
NK1qk3/1N1R3r/2pp1b2/R1Pq2r1/1RBN2n1/1P1n1bR1/2B2P2/3bNQ1r w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bd6 hxg5 Bf8 e4 f6 e6 Nh6 e7 Kf7 e5 Kg6 e6 Ng8 Bf4 Bh6 Bh2 Bf8 Be5 fxe5 Ke2 a5 Ke3 h5 Ke4 a4 Kd5 h4 e8N e4 c4 h3 g4 h2 b6 a3 e7 Kf7 c5 e3 b3 c6+ Kd6 e2 b7 e1R Nc7 a2 g6+ Kg7 g5 Rh7 Nd2 Re3 Bd3 Ra3 Ngf3 Qe8 Na8 Nf6 Kc7 Re1 Bc2 Ra7 Nd4 Ng4 N2f3 Rg1 Ne1 Na6+ Kb6 Rh6 b8R Nb4 Qc1 Kg8 g7 Kf7 g8R Nd3 Qd1 Bg7 g6+ Kf6 Rb7 Qd8+ Rc7 Ba6 e8N+ Ke7 Nd6 Bf6 g7 Rg2 Rg1 h1B Nb7 Rg3 Rf8 Bf3 g8B Rh1 Bc4 Bb5 Rf7+ Ke8 Rg2 d6 Rd7 Nge5 Rg1 Rg5 Rg3 Ng4 Qe2+ Nde5 Qf1 Nd3 Rb1 a1Q Rc1 Qa4 Ra1 Qb4 Ra5 Qd2 Ra4 Ra5 Rb4 Ba6 Ka7 Ra1 Na5 Rh7 Rcb7 Rc1 R7b5 Bc8 Nb7 Bd1 Rc7 Be6 Rg7 Bd5 Ra5 B5f3 Rc7 Qf4 Rg7 Qe5 Rd7 Qd5 Qe2+ Re5 Ng2 Rb1 Qe1 Bde2 Qh1 Rf1 Ne1 Rg5 Qh3 Rh1 Qf1 Qb6+ Kb8 Bd1 Ra3 Qa5 Ra2 Qb6 Ra5 Qd8+
1nR3BN/q5RP/1Pn2r1k/4b1nb/2p3KB/q1BbP3/2R1p1RN/2Q1r2B w - - 0 1 illegal: No proof kernel
r5RN/q1n1K1P1/2Nb2q1/1Q1B1pPN/1Pb2B2/2Bpnnr1/N6R/5kBr w - - 0 1 illegal: No proof kernel
1b1kqnB1/q5P1/P4Rn1/2Qb1RP1/1N1Nrp1p/1r1BN3/5BNb/n4K1B w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 b5 a4 c5 e4 h5 d4 f5 a5 f4 e6 b3 a6 c4 d6 b4 d7+ Ke7 g6 c3 g5 c2 g7 b2 e5 b3 d5 Bb7 Nc3 b1Q Nf3 b2 Qd4 Qa2 Nd1 b1N Nh4 Bc6 Ng2 Qb3 Be3 c1B Bd3 Qc4 Kf1 Bb5 Ra5 Qb3 Bf2 Bc4 Nde3 Qe8 d8N Nd7 Rh2 Qb8 Qc5+ Qd6 Rh1 Rb8 Rb5 Na3 Rh3 Qg6 Nc6+ Ke8 e7 h4 Nd4 Qc7 d6 Nc2 Rg3 Bd5 Rf3 Nb6 Rg3 Kd7 e8B+ Kd8 e6 Na1 d7 Qa7 Bf7 Ne7 Bg8 Qe8 Rh3 Ng6 Rh1 Bc6 Rg1 Bd6 e7+ Kc7 d8N Nd7 Ra5 Ndf8 Rh1 Rb3 Rh2 Qd7 e8B Qf7 Bd7 Qe8 Bg4 Bd2 Bf3 Be1 Rh1 Kd7 Rg1 Ba8 N8c6 Bb8 Nb4 Kd8 Rb5 Bc6 Rb6 Ba8 Rf6 Bd5 Rf5 Rh5 Bg3 Qe5 Ke2 Ra3 Na2 Bf2 Ne1 Nh8 Bh1 Rh6 Ng2 Qe8 Rb1 Bg1 Bf2 Re6 Kf1 Re4 Rb6 Bh2 Rbf6 Rb3 Nb4 Nhg6
N1nB3R/1R2Q1pN/b2Bq2P/1n1B4/k1q2N2/4Pr2/1pKP2r1/NB2brn1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h4 Kd7 a4 c5 a5 b5 h6 f5 e3 c4 d6 Kc6 e6 b3 h7 b2 h5 c3 d7 b4 e7 f4 e8B c2 a6 b3 a7 f3 Ne2 Kb5 Bg6 Qf6 d8B Be7 Na3+ Ka4 Bg2 b1Q Nf4 Qa2 Rb1 f2+ Ke2 f1R Kd3 Na6 Bd5 Qf7 Qg4 Qe6 Qg5 Nc7 Bb2 Rf3 Be5 Nb5 Bd6 Ba6 Qe5 Rc8 a8N Bh4 Qg5 Be1 Qe7 Nc7+ Kc3 c1N Nc2 Rb8 Na1 Nb5+ Kc4 Ne2 Kd3 Ng1 Rb2 Nf6 Bf5 Rf8 h8N Rb6 Nf7 Nd7 Ng5 Rc6 Rh2 Nb6 Nh7 Nc8 Bc5 Qf6 Nh3 Rf2 h6 Rf1 Rf2 Nd4+ Kc3 Qf7 Bb1 Rg6 Bd6 Qe6 Rf6 Rg3 Rf2 Rf4 Rf3 Rfg4 Rf8 Rgf3 Rh8 Rg5 Nf4 Rg2 Rc2 b2 Rc1 Bb7 Kd3 Nb5 Rc7 Ba6 Kc2 Qd7 Ra7 Qe6 Rb7 Qc4+
2BBNk2/1p2R3/rQPb3b/2qP2n1/Npq2n2/RR1bP3/1rR1NN2/1K3n2 w - - 0 1 illegal: No proof kernel
3brn1B/1pR1P3/PP2rq2/N4p1Q/BB1n1kb1/5nRB/1N1K2R1/2Rbq3 w - - 0 1 illegal: No possible last move
2knN1B1/P2b2N1/2r1Rp2/bqbq1rRr/6PN/PB4p1/B1Q4N/1K1nB3 w - - 0 1 illegal: No proof kernel
r5rB/RBN5/3PqN1R/B7/b2rpBn1/1n2prPP/2RQK1kn/5Rb1 w - - 0 1 illegal: No proof kernel
n6k/BRr2n2/1P1BR1BK/2Q1PR1R/bb1p1r2/2q3nN/5PBp/1b2b1N1 w - - 0 1 illegal: No proof kernel
Nr4rn/k4pn1/b1bB1K1B/1B2rR1q/P2R1P2/1pB2b1R/4PQ2/2rR3N w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 b5 c3 b3 Qd4 b4 Qd1 b2 Kd2 b3 Ke1 Bb4 cxb4 Qe7 Qd2 Qh4 Qd1 Qd8 Kd2 g5 Ke3 c5 Ke4 c4 Kf5 d5+ e6 c3 h4 c2 a4 d4 h6 d3 h5 d2 b5 g4 b6 g3 b7 g2 h7 Nf6 h6 Ng8 Nh3 g1R Bg2 Qe7 Bc6+ Kd8 Qf1 Kc7 Bb5 Kb6 Na3 d1B Nc4+ Ka7 Nb6 Nd7 b8B+ Kb7 f3 b1B Bd6 Ngf6 Qf2 Rhg8 h8B Ne8 h7 Qh4 e7 Ka7 Bc3 Ba6 h8R Nf8 Bh6 Rb8 f4 c1R+ Ke5 Ng7 e8R Be4 Rd8 Qg4 Kf6 Bc6 Rb1 Rg3 Na8+ Re3 Rg1 Qh4+ Rg5 Qh5 Rf5 Ng6 Rh7 Bc2 Rh8 Rh1 Rd1 B2e4 Qf1 Qh4+ Bg5 Ne7 Re1 Qh7 Bde5 Rd3 Rd4 Qh4 Bd6 Bf3 Nf2 Ng6 Qg2 Rf1 Nh1 Re3 Qf2 Re5 Rb1 Qg4 Rh3 Nh8 Bh6 Qh5 Ra1 Rc1 Rb1 Rc2 Rbd1 Rc1
2b1KR2/2p1RNn1/2R3Q1/P2B1bB1/nr2P1R1/p1bBP3/3k1rrB/1r2q2N w - - 0 1 illegal: No proof kernel
N2NN2R/1r4B1/5n1p/1p1qB1PP/b7/Q1b1nn2/K1B2qP1/N1nBk1rR w - - 0 1 legal: proof: d4 b5 f4 g5 fxg5 e5 dxe5 c6 a4 Bh6 b4 Kf8 axb5 Ke8 b6 Bf8 b5 cxb5 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 c4 Kg4 h4 Kg3 e4 Kf2 e6 f5 b7 d5 e7 a5 e8N a4 c5 a3+ Ka2 h6 h5 f4 c6 d4 c7 d3 e5 d2 e6 f3 e7 Nf6 Be2 Qd5+ Qb3 d1N Nd2 Bf5 c8B Bg7 Nc7 Rh7 e8N Ke1 Bb2 f2 Nh3+ f1Q Nf4 Bc2 Bf5 Nbd7 b8B Ne5 Nfe6 Nf3 Nd8 Bh8 Bfd3 Ra7 Na8 Rhb7 B8e5 Bg7 Qc4 Ba4 Nb3 Bh8 Bb1 Ne3 Bd1 Ra6 Bbc2 Ra5 Rh4 Qf2 Qc5 Ra6 Rd4 Rc6 Qa7 Rc4 Rd3 Rh4 Rc3 Rh1 Rc7 Rg1 Rh7 Bg7 Rb1 Qe6 Rh8 Qd5 Ka1 a2 Qc5 Bf8 Qa3 Bb4 Bbd4 Bd2 Kb2 a1N Ka2 Bc3 Rc1 Nd7 Bg7 Nf6 Be5 Qc6 Nc5 Nb3 Rb1 Nbd2 Nb3 Qd7 Na1 Qd6 Rb4 Nb3 Rh4 Qd5 Rh1 Nc1+
r1R3RB/NBR3B1/1p4k1/Nq1p3b/R2P1q1r/3n1rnP/P3B3/K1Q2br1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 e5 fxe5 h5 gxh5 Ne7 b4 Ng8 c5 Bd6 cxd6 axb4 e4 g5 e6 c5 h6 f5 e7 Kf7 e8R g4 e5 b6 e6+ Kf6 e7 c4 h7 g3 d7 c3 Bb2 b3 Nf3 f4 Qc1 g2 Kd1 g1Q Nd4 f3 Na3 f2 Nc4 Nh6 Rg8 Qf8 d8R Nc6 e8B Ne5 Na5 Nf5 Nb5 Ng3 Bc6 Nd3 Na7 Qg2 h3 Bg4+ Be2 f1B Rg1 Bh5 Bb7 Qb4 Rd7 Qh2 Rc7 Qb5 Rgc8 Rf8 h8B+ Kg6 Rb1 Rf3 Ba1 b2 Kc2 Qf2 Rg2 Qe3 Rg1 Qg5 Bg7 Ne4 Rg4 Ng3 Ra4 Qf4 Rg8 Qe3 Qe1 Qg5 Rd7 Nc5 Rc1 Bg2 Kb1 Qe5 Rdd8 Qc7 Rc8 Qf7 Kc2 b1R d3 Rb4 Bf8+ Kf5 Bb2 Rh4 Kb1 c2+ Ka1 Qc7 Bh8 Qf4 d4 Nd3 Bfg7 Kg6 Rb1 c1R Qf1 Rd1 Rbc1 Re1 Qg1 Rd1 Qe3 Rg1 Qd2 Nf1 R1c7 Ng3+ Qc1 Bf1
2K1Bk2/q1N3p1/r2P1rq1/P2RB3/1nB3R1/n2pBrRQ/3PN3/bRb4r w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 bxa5 d4 g3 Be6 g4 Bd5 cxd5 hxg4 Ke2 c5 Kd3 b5 Ke4 e5 h4 g3 a4 g2 f4 c4 h5 c3 f6 c2 Kf5 b4 Ke6 e4 h6 b3 a6 b2 h7 e3 a7 e2 f5 e1R+ Ne2 g1B a5 Ne7 Rh4 Ng8 Na3 b1R Bb2 c1Q Nb5 Qc2 Rg4 Qc5 Qb3 Bd6 f7+ Kf8 Qh3 Qdb6 Nc7 Rbc1 Rb1 Nc6 Kd7 Nh6 Bc3 Rg8 h8R Nb4 Rg3 Ng4 Rh4 Ne3 Rhg4 Nc4 Ba1 Rc8 a8B Rc3 Bc6 Ra8 Bb5 Ra6 Kc8 Qa7 Be8 Qcb6 Bb2 Na3 Ba1 Ke7 f8R Rf3 Rf6 Bc5 Rd6 Kf8 f6 Rh8 f7 Rh6 Rd8 Qg6 Bb2 Be3 Bc3 Bf4 Bb2 Be5 Ba1 Ke7 f8B+ Kf6 d6 Bb6 Nf4 Qc2 Bc4 Ref1 Kd7 Rh1 Ne2 Qh7 Bb2 d3 Rb8 Bbd4 Kc8 Bc3 Ba1 Bb2 Rb5 Bc1 Rd5 Qe4 Bd4 Rg6 Be3 Ba1 Nb5 Ke6 Be7 Rh6 B7g5 Rhf6 Bgf4 Qh7 Be5 Qg6 Bc6 Kf7 Be8+ Kg8 Nc7 Kf8
1q1R3B/1p1R4/rPB4p/4P1Pk/1q4br/2BQ2q1/2NNRq1b/nKnBR3 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 g5 hxg5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 Kd1 c5 Kc2 f5 d4 Kf7 e4 Kg6 g4 h6 a4 f3 b4 f4 b5 f2 d6 c4 d5 c3 e5 f3 a5 Qe7 b6 Qg7 d7 Nf6 d8B Qe7 a6 Qa3 d6 Nc6 d7 Qc5 Ra2 Na5 Nd2 Ne4 Bb2 Qb4 Bg2 f1Q Ne2 f2 Bf6 Nc5 d8R Nd3 Bc6 Qg1 Rd7 f1Q Nd4 Rg8 Bh8 Nc1 Kb1 Nab3 Nc2 Qg3 Rg1 Qf5 Re1 Na1 Qb8 Qff4 a7 Bc5 Qd6+ Qf6 Qd5 Bg1 Qb5 Bh2 Qd5 Rb8 a8R Qff2 Qf3 Rf8 Qd3+ Rf5 R8a5 Ra8 Rad5 Ra6 Rd8 Kf7 Rd4 Rf4 g6+ Ke7 g5 Rh4 g7 Kf7 R4d6 Bf5 Rd5 Kg6 g8B Kh5 R5d7 Bg4 Bb3 Qd6 Ne3 Qb8 Bd1 Qfg1 Ba3 Q1f2 Bb4 c2+ Kb2 Qff4 Ndf1 Ncb3 Bc3 Qc4 Ra4 Qf7 Re4 Qf5 Nd2 Qff2 Ba5 c1Q+ Ka2 Qc5 Kb1 Qb4 Nc2 Qa3 Bc3 Qb4 R4e2 Nc1+
nB2B1Rn/8/N2q1p2/2qP1N1B/NNb1kP1b/1q2pR2/3nP2b/2rK1Q1B w - - 1 2 legal: proof: c4 a5 b4 g5 a4 d5 cxd5 b5 axb5 a4 h4 Ra5 bxa5 gxh4 g4 Kd7 d4 Kd6 a6 c5 a7 h5 a8B e5 g5 h3 g6 h4 g7 f6 f3 h2 b6 h3 b7 e4 Nd2 a3 Ra2 c4 Qc2 c3 Bb2 Na6 b8N Be6 Bc6 Nc7 Qb1 c2 Be8 c1B Kd1 Ne7 g8B Na8 Nb3 Ng6 Bg2 Bg5 Nc5 e3 Nba6 Bh4 Na4 Bf7 Ra1 a2 Qc1 Be6 Bgf7 Qd7 Rb1 a1N Bc3 Qa7 Rb8 Qc5 Be1 Bh6 Bg3+ Bf4 Qb1 Rh7 Qf5 Nh8 Bh5 Nb3 Qb1 Rc7 Rc8 Ke7 d6+ Kf8 d7 Kg7 d8N Bc4 d5 Nd2 Qa1 Kh6 Nc6 Kg5 Ncb4 Kf5 Be1 Bfg3 f4 Qd6 Nf3 Ke4 Rf1 h1Q Rb8 Qg1 Bh1 Bh2 Rc8 Qg4 Rd8 Qc8 Nd4+ Nf3 Bc3 Qb8 Nbc2 Qb3 Nf5 Rc5 Be5 Rc6 Rf2 Rc7 Rg2 Nd2 Rg3+ Nf3 Ne7 Bg1 Bb5 Bd3 Bg2 Qdb4 Kc1 h2 Nf5 h1Q Rdg8 Rc6 Bb8 Qd6 Rh3 Rc5 Bbe8 Bh2+ Bf1 Nd2 Rf3 Qg1 Qb1 Qg7 Bg2 Qgc7 Bh1 Rc3 Qa1 Bc4 Qb1 Rd3 Ncb4 Qc8 Qc2 Qcc5 Qd1 Rc3+ Nc2 B4g3 Qf1 Bh4 Kd1 Qb2 Ncd4 Rc2 Nc6 Qb3 Ncb4 Rc1+
NN1n1r1k/P2p1qb1/1nRQ1N2/P1BRn2p/4R3/1b2K2P/Rq2N2q/1B1b4 w - - 0 1 legal: proof: d4 b5 b4 a5 bxa5 f5 f4 c5 g4 cxd4 gxf5 Ba6 e4 Nh6 e5 Bc8 f6 Ng8 f5 Qb6 Bg2 Kd8 Bh3 Kc7 Bf1 Kc6 f7 Qd8 Qd3 Ra6 Qf3+ Kc7 Qd1 Rf6 exf6 Kc6 Ke2 Kd6 c4 Ke5 a4 g5 h3 h5 c5 e6 c6 b4 c7 b3 a6 d3+ Ke3 g4 a7 g3 a5 b2 Nd2 b1Q Nb3 d2 Ne2 g2 Nc5 Qe8 Ba3 Qb2 Na6 Nc6 Nb8 Bb7 c8N Nge7 Bc5 Bg7 f8N Qf7 Ra2 Nd8 Nh7 Bd5 Nb6 Rf8 Na8 Nc8 Rh2 g1N Rf2 Bc4 Rf4 Nf3 Rg4 Bb3 Re4+ Kd5 Bg2 e5 Bh1 Nb6 Bg2 Qe8 f7 Qe7 f6 Ke6 Bh1 Kf5 Bg2 Kg6 Bh1 Re8 f8R Qf7 Rg8 Rf8 Bg2 Nd4 Bf3 N4c6 Bg4 Kh6 Be6 Kg6 Bc4 Kh6 Bd3 Kg6 Bb1 Kh6 Qe1 d1B Qd2 Kg6 Qd6 Kh6 Rd4 e4 Rd5 Ne5 Rh8 Qe6 f7 Qg6 Kf4 e3 Nf6+ Qh7 Ng3 e2 Ke3 e1Q+ Ne2 Qh1 Rg8 Bh8 Rg4 Bg7 Rc4 Qh2 Re4 Rh8 f8R Qg8 Ne8+ Kh7 Rf6 Qf7 Re6 Rf8 Nf6+ Kh8 Re8 Ndc6 Rc8 Nd8 Rc7 Qg8 Rc6 Qf7
RqR3N1/3Kr3/1p1B2Pq/Q3B2P/R4R2/1P1nB1k1/1bprbbr1/1B4Nq w - - 0 1 illegal: No proof kernel
1b1Nb2k/B3P1n1/4rPb1/R5p1/NQ2R1B1/bBp1B1rq/2P2K1r/Nb4N1 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 e5 axb5 f6 dxe5 Nc6 h4 Nce7 h5 Ng6 hxg6 f5 Qd3 fxg4 Qd4 Qf6 Qd1 Qd8 f4 h5 e4 a5 b4 d5 f5 c5 e6 c4 b6 a4 b5 a3 g7 d4 b7 d3 b8N d2+ Ke2 h4 f6 a2 e5 h3 e7 Kf7 e8N g3 b6 g2 b7 h2 Nh3 g1R Ke3 Ba3 Nc7 Qd7 Qg4 d1B Nd2 Ne7 e6+ Kg8 Nba6 Nf5+ Kf2 Rg3 Nc5 Ra6 e7 Re6 b8B Rh4 Rg1 h1B Ba7 Bc6 Ndb3 Rh7 Qe4 Bh5 Na4 Bg6 Bce3 Bb5 Re1 a1B Be2 Be5 Bg4 c3 Qb4 Bc4 Na1 Ba2 Rh1 Bb1 Ng1 Bb7 Rh4 Bc6 Rd1 Qc8 Rd5 Bce8 Rb5 Rh5 Ra5 Kh7 g8B+ Kh8 Bf7 Ng7 Bg8 Qa8 Bf7 Qh1 Bg8 Qh3 Bf7 Rb6 Ne6 Bb8 Nd8 Rd6 Bb3 Re6 Bf3 Qf5 Rc4 Rh1 Re4 Qh3 Bg4 Rh2+
1q2R3/nP2NpP1/1bB4n/5r1K/B3b1N1/pNNk1P1n/Q2Bn3/2b1R1nB w - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 g5 hxg5 b5 axb5 Ra6 Rh4 Rd6 Rh6 cxd4 Rh1 d3 Qe2 d4 Qd1 Rd5 exd5 Bg7 Na3 Bh6 Nb1 Bf8 b4 Kd7 g4 Kd6 c4 Ke5 b6 Ke4 b5 e5 b7 h5 g6 d2+ Ke2 a4 g5 h4 g7 a3 d6 h3 g6 h2 d7 Be7 c5 Rh4 b6 Rh8 c6 Nh6 g8B Na6 b8N Nc5 b7 Qf8 d8N Nd7 c7 Bg5 g7 Nb6 Bh7+ Bf5 Ndc6 Nc8 Nh3 Na7 Na6 Qb8 Qb3 d1N c8B Bd2 Rg1 h1N Qa2 Rd8 Ne7 Rd5 Bd7 Bg6 Bb2 Bc1 Bc3 Rc5 Bd2 d3+ Ke1 Ra5 Ba4 Nc3 f3+ Kd4 Rg4+ e4 Nf2 Ne2 Bg2 Rf5 Nc3 Nhg3 Bh1 Ng1 Nc5 N3e2 Nb3+ Kc4 Rg2 e3 Rb1 Rg5 Rh2 Be4 Ng4 Rf5 Rh4 Nf4 Ra1 e2 Kf2 e1B+ Ke3 Nfe2 Bg6 Ng8 Rh8 Nh6 Re8 Bg3 Bh7 Bc7 Kf2 Bb6+ Kg2 Nf4+ Kg3 Nfh3+ Kh4 Be3 Be1 d2 Bg6 d1N Bd2 Bb6 Bh7 Rf6 Kh5 Rf4 Bf5 Kd3 Bfd7 Rf6 Bdc6 Rf4 Ncd5 Nc3 Rb1 Nce2 Nc3 Bb2 Rf1 Bc1 Re1 Rf5+
4n2q/pn1B3N/2RrrP2/P1Rq3R/B1b2kP1/1Kn2pnB/1QR3n1/2N1B3 w - - 0 1 illegal: No possible last move, all moves rejected
1b2BN1R/3p2qp/nQ2B1bK/2Rb1N2/2RR3b/1r1P1P2/6BP/1B1bqnk1 w - - 0 2 legal: proof: b4 c5 a4 b5 axb5 e5 f4 Qf6 fxe5 Ne7 b6 Ng8 b5 Qe7 Ba3 Qd8 Bb4 cxb4 Ra5 f6 Ra1 f5 Qc1 f4 Kd1 f3 Qb2 Be7 Kc1 Bd6 Qd4 Bf8 Qh4 Ba6 Qe1 f2 Qd1 Bc8 Nh3 a5 Ng1 Ra7 Ra2 Rc7 Ra4 Rc3 Ra1 Rf3 gxf3 Kf7 Na3 Ke7 Nb1 Ke8 e4 Ke7 c4 Ke6 b7 g5 c5 g4 b6 g3 c6 b3 c7 g2 Na3 a4 Nb5 a3 Nd4+ Ke7 e6 Kd6 e5+ Kd5 e7 a2 e8B Qh4 e6 Qg4 e7 Qh3 Bg6 Qg3 e8B Qg4 Nge2 g1B Bg2 f1B Bb1 Qg3 Nf5 Qg7 Ned4 Ba6 Ne6 Be7 Nf8 b2+ Kc2 Be3 Qg1 Bf4 Qe3 Bd8 Rc1 Be2 Qg1 Na6 b8R Bd6 b7 Nh6 Qb6 Bd1+ Kd3 Bh4 Rc4 Ng4 Ra8 Bdg3 b8R Bb7 c8B Ne3 Ra7 Ba8 Rac7 Nf1 Bb7+ Ke5 R4c5+ Kf4 Bd5 Bc6 Be6 Bd5 Bc2 Rg8 Rc1 a1Q Bb1 Qe5 R7c6 Qe1 Rd6 Rg5 Nd4 Re5 Nf5 Re3+ Kd4 Rb3 R1c4 Bd8 Ra8 Bc7 Rb8 Bh4 Ra8 Bb8 d3 Be4 Nh6 Bg6 Kd5+ Ke3 Ke5 Kf2+ Kf4 Kg1 Nf5 Qaa5 Kg4 Qac3 Rdd5 Qg7 Rdd4 Bc7 Rd8 Bb8 Rdc8 Bf2 Kg5 Bfg3 Bc2 b1B Rd8 Ba2 Bb1 Qge5 Kh6 Bh4 Rc3 Rb5 Rdc8 Bd5 R3c4 Rb3 B8f7 Bh5 Ng6 Bf6 Rh8 Bh4 Nf8 Bg6 Be8 Qg7+
R7/1b2k2q/4b3/1NrnRRn1/4bpBb/QB1pPPRN/1Pq4q/1KB1B3 w - - 0 1 legal: proof: d4 c5 a4 b5 axb5 g5 c4 a5 h4 e5 dxe5 gxh4 Qd4 Ra6 Qd1 Rd6 b6 Rd3 Ra3 Rb3 Ra1 Rb5 cxb5 Qe7 Qd4 Qf6 Qd1 Qd8 Kd2 f5 Kc2 d5 g4 h5 e6 h3 e7 d4 b7 a4 b6 h2 e3 f4 g5 h4 g6 d3+ Kd2 c4 g7 h3 Bg2 c3+ Ke1 a3 Bf3 c2 Kd2 a2 Na3 Nd7 b8R Nc5 b7 Qc7 Nb5 Nf6 g8B Ne6 Bg4 Ng5 Bb3 Nd5 Ra8 Rh5 b8B Be6 Ra5 Kf7 e8R Be7 Qf1 Qb7 Be5 Bd8 Rf8+ Ke7 Rf5 Qd7 Ra8 Qb7 Rb1 a1Q Bc3 Qa4 Qd1 Qe4 Rba1 Qg2 R1a4 Qg3 Re4 Qd7 Ree5 Qc7 Ne2 Qa7 Re1 h1B Ng1 h2 Nh3 Be4 Rg1 h1B Qf3 Qh2 Rg3 Nb6 Qg2 Bb7 Qc6 Nd5 Qa6 Be4 Rg2 Kd7 f3 Bf6 Qa1 Ke7 Qa5 Rh8 Qa4 Rc8 Qa3+ Rc5 Bb4 Nf7 Ba5 Bh4 Bc3 Ng5 Ba5 Qh1 Rg3 Qh2+ Ke1 Nc3 Bd2 c1Q+ Bd1 Nd5 Bab4 Qc4 Bb3 Qb6 Kd1 Qc7 Bbc3 Qd7 Kc1 Qe8 Kb1 Qf7 Bc1 Qh7 Be1 Qcc2+
q2B4/3R1QP1/2kN4/nprbPKp1/1q2N1N1/1PNq2rB/2Rnn3/1R1R1q2 w - - 0 1 illegal: No proof kernel
2B1BN1b/p3RP2/1pRn3K/1b1PN1rp/5R1R/1n1Bk3/r1QbB2P/n3q3 w - - 0 1 illegal: No proof kernel
2b2R1r/7P/Npp1Rr1b/Bq4P1/1nBKN2q/1NRr3k/1PN3p1/1Q1nR3 w - - 0 1 illegal: No proof kernel
1BBB2Q1/b2pP2p/1npq1R1n/4k2P/1r1qbN1R/1nR1r1RN/1B1PK3/8 w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 f6 g4 f5 gxf5 exf4 c4 Qg5 b4 Qe7 b6 Nf6 b7 Qd6 c5 Qb6 cxb6 Ng8 b5 Bb4 Bb2 Bc5 Bc1 Bf8 e4 Ke7 h4 Kd6 f6 a5 h5 g5 f7 a4 Qf3 g4 Rh4 a3 Qb3 g3 Nc3 f3 Nh3 g2 Bb2 g1Q Rc1 a2 Ne2 a1N Rc3 Na6 b8B Nh6 b7 Nb4 b6 Ra3 Nef4 f2+ Ke2 Nd5 Bg2 Bg7 f8R Bd4 Rf6+ Ke5 Ba7 Qh2 b8R Bb7 Rg8 Be3 Rgg4 Rb8 Rg3 Bc5 Qc4 Nb3 Bf3 Bc6 b7 Nb6 Qg8 Bd5 Bg2 c6 Bf1 Kd4 e5 Be4 e6 Ke5 e7 Qg1 Rgd3 Qg4+ Rf3 Qe6 Rg3 Qd6 Nd5 Ra4 Ndf4 Rb4 Rcd3+ Bd4 Rc3 Ra8 Bb8 Ra3 Bc7 Bc5 b8B Be3 Kd1 Bd4 Bd3 Bc5 Bd8 f1Q+ Kc2 Qg2 Kd1 Qg1+ Ke2 Qd4 Bb5 Nd5 Ba6 Ba7 Bc8 Nb6 Qf7 Ra1 Qc4 Rf1 Qf7 Rf3 Qg8 Re3+
N2q1B2/b1prQ1R1/1N4N1/Npn1RnK1/n7/PPb3r1/BpqBP3/3k2B1 w - - 0 1 illegal: No proof kernel
KR1Rb3/nP2QB2/NNr2B1b/1pr1nqbp/PB5P/N1p3k1/7N/5q1B w - - 0 1 legal: proof: c4 b6 b4 a6 b5 axb5 c5 Ra3 Nc3 Ra7 Nb1 Ra8 cxb6 e5 d4 f5 dxe5 Ra4 g4 Ra3 gxf5 Ra8 Kd2 Ke7 Kc3 c5 e4 h5 h4 d5 f4 g5 f6+ Ke6 f7 g4 f5+ Kd7 b7 g3 f6 Ke6 Bg2 c4 Kd4 c3 Qe2 Ra7 Nf3 Nh6 Na3 Qd6 Rd1 Ra8 Bg5 Ra7 Nh2 Qa6 Bh1 Bb4 f8B g2 f7 Bd7 Bf6 g1B+ Qe3 Ba5 Bb4 Be8 Kc5 d4 Qg5 Bd8 f8N+ Kf7 Rd3 Nc6 Nd7 Ke6 Nb6 Ng4 Rdd1 d3+ Qe3 Kf7 e6+ Kg6 e5 Kf5 e7 d2 e6 Nge5 Kd6 Rh6 Qe1 Kf4 Qe2 Bf7 e8N Be3 e7 Ra8 Nc7 Rc8 e8B Na7 Qe1 Qa4 Na6 Qc2 Qe2 Bg6 Bf7 Qf5 Qe1 Rc5 Qe2 Nac6 Qe1 Be7+ Kc7 Na7+ Kb8 Bd8 Qe2 Kg3 Ka8 Bg5 Qe4 Be7 Qe2 Bf8 Qe4 Nd7 Qe7 Ne5 Re1 Bg7 Rad1 Bf8 Re4 Bg7 Rd4 Bf8 Re1 d1Q Rd8 Qdb1 Re2 Qbf1 Red2 Bg7 Rb8 Bf8 Rdd8 Bg7 Be6 Be8 Bf7 Rg6 Nb1 B7h6 a4 Ng4 Na3 Ne5 Bg7 Rd6 Bf6 Rdc6
4n2N/pr1Pq2b/2K2pPP/B1B1p1b1/1NB1B3/2N3R1/rN2bR2/4kqnQ w - - 0 1 illegal: No proof kernel
q2n2Qq/BB3Rr1/2R1N1RP/2b1B1p1/KnbP1pN1/R4Pkn/p3B3/5b2 w - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 a4 cxd4 axb5 Nf6 e3 Ng8 Bh3 d5 Kf1 a5 Ra2 d3 Ra1 d2 Kg2 d4 Kf3 d3 Bf1 Ra6 Kg3 Rd6 Kg2 Rd4 exd4 Qb6 Ne2 Qd6 Ng1 Qd8 Kf3 Kd7 Ke3 Kd6 h4 e5 b4 f5 c4 g5 c5+ Kd5 f3 e4 b6 a4 b5 a3 h6 Be7 b7 Nc6 b8B Ne5 b6 Qd7 h7 Qd6 c6 Nf6 c7 Nc6 h5 Qb4 b7 Qa4 h6 Nh5 Be2 Bc5 Nc3+ Ke6 Nh3 Nf6 Nd5 Qa8 Nf2 Rg8 h8R Rg7 Rf8 Nd8 Qb3 d1B Kd2 e3+ Kc3 d2 Rf7 Bc2 Ba7 Bd3 b8R Bc4 Rf1 B8a6 Ng4 d1N+ Kc2 Nf2 c8B+ Nd7 Rb4 Nh3 Bb7 Ne5 Rb6+ Nec6 Bd2 Bab5 Rfc1 Ba6 Be1 Bab5 Bg3 a2 Be5 Ba6 Rd1 Bab5 Rac1 Ba6 Rd3 Bab5 Bd1 e2 Kb2 e1Q Be2 Qa5 Ra6 Qb6 Re3 Nb4 Ka3 Bd3 Rc3 Bbc4 Ka4 Qd6 Nb6 Qf8 Nd7+ Bd6 Rc2 Qh8 Rb6 Bd5 Rcc6 B5c4 Bd1 Bf1 Nc5+ Kd5 Ne6 Bc5 Rd3 f4 Nf8 Na6 Be2 Nb4 Qb1 Ba6 Rg6+ Nbc6 Re7 Kc4 Qd1 Nb4 Rbc6 Kd5 Re3 Bd3 Rec7 Kc4 Qb1 Kc3 Qb3+ Kd2 Qg8 Ke1 Rf7 Ba6 Ne6 Bc4 Nh2 Kf2 Ra3 Kg2 Ng4 Kg3
1knBNRB1/r6N/5p2/1p2pK2/PPR1Pr1q/bbB1N1Q1/b2q4/1B3N1q w - - 0 2 legal: proof: c4 g5 g4 d5 cxd5 a5 b4 a4 h4 Bg7 hxg5 Na6 f4 Bc3 g6 Qd7 f5 Qd8 g5 Bg7 Qc2 Bf8 Qb3 axb3 f6 Nc5 Nh3 Ne6 Ng1 Ng7 fxg7 Ra3 Bb2 Ra5 Bc1 Ra8 Kf2 Kd7 Kf3 b5 Kf4 h5 a4 e5+ Kf5 c5 d4 f6 e4 b2 d6 c4 d5 c3 Nh3 h4 Bd3 c2 Nd2 b1Q Bb2 c1Q Bc3 Qb6 Nf1 Qbb2 Bb1 Kd8+ d7 Kc7 d6+ Kb8 Ra2 Ba6 d8B Ra7 d7 Qbd2 Rc2 Bc8 Rg1 Rh7 Rg3 Qg1 Rd3 Qg3 Rd4 Qdh2 Rc4 Qh1 Rd2 Rh5 Rd6 Qc2 Re6 Qd2 Re8 Bc5 Rf8 Bd4 Ke6 Ne7 g8Q Qgd3 g7 Qg3 g6 Rh7 Ng5 h3 Bb2 h2 Bc3 Rh4 Nh7 Nd5 Kf5 Rg4 Qe6 Nb6 g8B Be3 g7 Qh4 Qf7 Bb7 Qg6 Nc8 Qg5 Bd5 Qf4 Qhg2 Qg3 h1B Be6 Qh6 g8N Qh4 Nh6 Qg1 Bg8 Bf3 Ba2 Qgh1 Bb1 Rg7 Ng4 Bd1 Qf4 Bb3 Qg3 Bd4 Nge3 Ba2 Bb6 Bb3 d8N Rg4 Ne6 Ba2 Bd8 Bb3 Ba1 Bb2 Nc7 Ba3 Bc3 Bf7 Ne8 Ba2 Rc5 Bfb3 Rc4 Rf4+
3N1B1R/1np3r1/2NBpKQ1/Npq5/b2P3N/P1b1B2k/1P1br3/2qqR2B w - - 0 1 illegal: No proof kernel
1n2bNK1/3p2rN/N2Br1r1/pr1PP1Qr/P2qNB2/1p5R/1R4B1/4kB1b w - - 0 2 illegal: No possible last move, all moves rejected
1N2b3/2BN1nBK/3p2P1/1nQ1r3/NNBn4/pRBPPRrp/4n2k/2rq4 w - - 0 1 legal: proof: h4 e5 a4 b5 b4 g5 hxg5 Be7 axb5 Bd6 b6 Bb7 f4 exf4 c3 Bf8 b5 Bb4 cxb4 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 a5 Kf5 h5 g4 c5 b7 h4 g6 a4 b6 a3 b5 c4 g5 c3 g7 c2 Nf3 h3 Bb2 c1N Nc3 Nb3 Nd4 f3 Rb1 f2 Nc6 Na6 b8N Rh5 b7 Nc7 b6 Nb5 Na4 f6 Kg6 f5 Bf6 f4 Qc2 f3 Nb4 Nh6 g8N N3d4 Bg7 Nf7 Nf6 Ke5 Qc5+ Kf4 e3+ Kg3 Bc4 f1N Rb3 f2 Rg1+ Kh2 Rg3 Ra6 Rf3 Ng3 d3 f1R N8c6 Qh8 b8B Rc1 b7 d6 Bc7 Ra8 b8B Bd7 Ba5 Be8 Bbc7 Nge2 Nd7 Rc8 Ncb8 Rg1 Na2 Rg3 Bc3 Qg8 Nb4 Qh7+ Kf6 Qh6+ g6 Re5 Bh8 Qf4+ Kg7 Qg4 Kg8 Qh5 Bg7 Qg4 Rf6 Qf3 Kh7 Qf1 Rf4 Qd1 Rf3 Qe1 Bd5 Ne6 Qc4 Nfd8 Bb6 Rg2 Ba1 Rg3 Qc2 Rc6 Bc7 Nf7 Qc4 Qd2 Qd4 Rc1 Qc5 Qd1 Bc4 N6d4 Bb2 Nc2 Bc3 Ncd4
n3q1N1/1n1N2R1/QB3B1p/q2NqP1P/3rBP1R/2N2r2/1B1k1pp1/1Kb4q w - - 0 1 illegal: No proof kernel
2B4r/3P4/rNN1qkB1/4b1rr/b1N1QppK/1Bp1nPP1/3R1q2/2RBN3 w - - 1 2 illegal: No possible last move, all moves rejected
BNRb1n1k/2p1P3/r1P2n2/p1B1r2P/bn4b1/BRp1n3/R2R1QK1/2N1B3 w - - 0 1 illegal: No proof kernel
1bNkr1Q1/N2nRK1p/4b3/1b3BPP/1Rn1rB1p/p2q1R1P/2pB4/6BR w - - 0 1 illegal: No possible last move, all moves rejected
B2B1K1r/k3B1p1/2pbB2N/N2PPb2/n2Pn1q1/2N2p1R/1R2nprN/3Q4 w - - 0 1 illegal: No proof kernel
2Bn1NR1/pbq1P1b1/2Rn4/PR1p4/1R3r2/Q6N/pPB1pr1r/kB1K1B2 w - - 0 1 illegal: No possible last move, all moves rejected
N7/nR3Rrq/p1p4n/2B2Rp1/n2r1PP1/1B1N4/P2k1rp1/Kb1N1QNR w - - 0 2 legal: proof: c4 e5 d4 b5 cxb5 f5 dxe5 f4 Qd4 Be7 Qd2 Bh4 Qd1 Bg3 hxg3 f3 Qd4 fxg2 Qa4 Bb7 Qd1 Bc8 Kd2 Ke7 Kc3 Ke6 e4 g5 b4 d5 Kb2 h5 g4 d4 b6 c6 b5 d3 b7 h4 b6 d2 Nc3 h3 Bc4+ Qd5 Qf1 d1R Be3 h2 Bc5 a6 Bb3 Rd3 Nd1 Nd7 b8N Ra7 b7 Nb6 Nd7 Rd4 b8R Nh6 Rb7 Rf8 Rc1 Rf6 Ka1 Na4 Rc3 Rf7 Rf3 Rg7 Rf7 Qc4 Bc2 Qd3 f3 Ra8 f4 Rb8 Nb6 Bd7 Nd5 Be8 Rf5 Bg6 Nb4 Qh3 Rbf7 Rb6 Nd3 Rb2 Bb1 Rf2 Bc2 Ng8 Rb7 Qh7 Rbf7 Ne7 Bb3+ Kd7 e6+ Kc7 Rf8 Nc8 e5 Na7 e7 Kb7 e8R Kc7 Bb4 Kb6 Bc5+ Kb5 e6 Ka5 e7 Kb5 Bc2 Kc4 R5f7 Be4 Rb8 Bf5 e8N Bg6 Ne3+ Kc3 Nc7 Kd2 Na8 Bf5 Nd1 Be4 Nh3 Bg6 Bb3 Bf5 Rg1 h1N Rbb7 Ng3 Rh1 Be4 Ng1 Nf5 Nb4 Bb1 Nd3 Nh6 Rf5 Rd6 R8f7 Rd4
2N2n2/1pP1qk2/1N1rRpr1/1Pn2RRb/R4Pp1/N2Q4/B1p3N1/n3Kr1B w - - 0 2 illegal: No proof kernel
kN2K3/p1n2Rp1/QB1N2Bp/5rBP/1q1Bq1rn/1b1p1RP1/1N1N3P/3q4 w - - 0 2 illegal: No proof kernel
NB4r1/1q3np1/4Kbp1/N1n3P1/1NbBb1Rb/B1p1N2k/1PPp4/R3B1Q1 w - - 0 2 illegal: No possible last move
1N1R1N1K/2p1R2R/NRr4B/pQp1n3/2N1q1P1/nrP1p3/Pn6/Bk3nb1 w - - 1 2 legal: proof: f4 d5 e4 Kd7 exd5 g5 fxg5 Kd6 Bc4 Be6 Bb5 Bc8 h4 Be6 g4 Bf5 Bc6 bxc6 h5 Bg6 hxg6 Kd7 Kf2 Ke8 Kf1 Na6 Ke1 Nb8 Kf2 Kd7 Kg3 Kd6 Kh4 Kc5 Kh5 Kc4 b4 e5 d4 f5 d6 a5 d5 c5 g7 f4 b5 h6 Kg6 f3 d7 h5 b6 f2 d6 f1N b7 h4 Nd2+ Kc3 Nh3 e4 Nf2 h3 Rb1 h2 Nc4 Rh7 Rb6 Nf6 g8R Nh5 Qe2 Qe7 d8N Ng7 d7 Rh5 Nd3 Ra6 Nb4 Ne8 Ne6 Nc6 d8B Bh6 b8N Nd6 Rg7 Nb5 Kh7 Na3 g6 Ne5 Kh8 Rh3 Nf8 Be3+ Rh7 Bg1 g7 Rd3 Bh6 e3 g8R Qe6 Be7 Qf5 Bf6 Qe4 Rc6 Rb6 N4a6 Rb3 Rgg7 Rd6 Re7 Re6 Rb6 Rc6 Nd6 Kb2 Qb5 Kb1 Nc4 Bf2 Rg1 h1N Rg2 Bg1 Rd2 Nf2 Rd8 Nfd3 Bfg7 Nd7 Ba1 Nb2 c3 Ne5
1qKR2Q1/N2pkB2/1bP1B3/pp1r1r1P/2p2rN1/2BP1Rr1/2R3R1/nB2n3 w - - 0 1 illegal: No proof kernel
n1QNq1N1/3prq2/1p2B3/nR5p/p1rN1B2/P2PBB1P/1q1R1q2/4Nk1K w - - 0 3 legal: proof: c4 e5 b4 c5 bxc5 b6 f4 exf4 c6 Bc5 c7 Be7 c5 Bd6 c6 Bf8 g3 f5 Qb3 f3 Kd1 f4 Qa4 f2 Kc2 Bb7 cxb7 f3 Qb3 Bd6 Qa4 Bf4 gxf4 Qe7 Kc3 Qd6 Qd1 Qf6+ Kc2 Qd8 Kd3 Ke7 Ke4 Kf6 c8N g5 a3 a5 f5 h5 h3 a4 d3 g4 Be3 g3 Bg2 f1Q Rh2 f2 Kf3 Ke5 f6 Qe1 f7 Qe8 f8N Ra5 Nc3 Rd5 Nb5 Kf5 Qc2 Rd4 Ne6 Nc6 b8B Qe7 Nd8 Rh6 Rb1 Rc4 Bbf4 Qf6 Qc1 Qb2 Nd4+ Kf6 Qc2 Na5 Ne7 Rh7 Bh1 Rg7 Kg2 Rf7 Ngf3 Rh7 Nef5 Ne7 Nh6 Nd5 Ng8+ Kg6 Qc1 Re7 Qc3 Nc7 Qc2 Qa1 Rb5 Qb2 Qc3 Na8 Qc1 Qeb4 Ne1 Qc5 Qc2 Qe5 Qc1 Rb4 Qc8 Rc4 Bd2 Qe6 e4 Qf7 e5 Qe8 Ne2 Kf5 Bde3 Rc6 e6+ Rc5 Kf3 f1Q+ Rf2 g2 Nd4+ Kg6 Kg3 Rc4 Rd2 g1Q+ Bg2 Qgf2+ Kh2 Q1e2 Kh1 Qef3 Bc7 Qff7 Bf3 Qf4 Be5 Kg5 Bc7+ Kh4 Bd6 Rf7 e7 Kg3 Be5 Qf8 e8B Re7 Bf7 Qe8 Bh8 Qf5 Be6 Qff7 Bg7 Qe2 Bf4+ Kf2 Bgh6 Kf1 Bhg5 Qf2 Be3 Rc7 Bgf4 Rc4
2B4B/nPp2r1n/2q4R/nB4N1/p2q1brK/PRPb1B2/qQ2R2R/4N1kr w - - 0 1 illegal: No proof kernel
4Qb1N/1n2N1np/1k3Bpb/2qr1B1n/KrR5/BPN3P1/1q3B1P/Nq2R2b w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 e4 Kd7 d4 a5 Kd2 f5 Kc3 c5 Kb3 Kc7 g3 c4+ Ka4 g6 e5 c3 b3 f3 b6+ Kb7 d6 f2 d7 c2 d5 f4 e6 f3 d6 Qg5 d8B Nf6 e7 Nh5 e8N Na6 d7 Qc5 Ne2 Rb8 Bh3 f1Q Qe1 f2 Ba3 c1B Bf6 Bch6 d8B Qg2 Bc7 f1N Bf5 Ne3 Nd4 Qb2 Nc2 Be6 Bce5 Bd5 Nd6+ Kc6 b7 Kb6 Rg1 Bh1 Nc3 Rd8 Nf7 Rd5 b8N Qb1 Bh3 Nf5 Bd4 Nfg7 Qe8 Qf1 Qe6+ Bd6 Bf2 Qd4+ Bb4 Kc7 Ka3 a4 Na2 Nc5 Nc6 Rb8 Qe8 Bf8 Nh8 Rb5 Ne7 Nb7 Bf5 Kb6 Rc1 Qc4 Rge1 Qcc5 Na1 Qd1 Rc4 Qb1 Nc3 Qe4 Ka2 a3 Nc2 Qd3 Ka1 a2 Kb2 Qd1 Ka3 Qb1 Ka4 a1Q+ Ba3 Qab2 Na1 Rb4+
Qb1nR3/2Rr3P/1p4N1/B1B1NbB1/nPKp2nr/qN1P1bb1/1N4k1/3B3r w - - 0 1 illegal: No proof kernel
N1n1qb1B/3B3k/3N1pR1/nR3K1P/1r1r2Q1/RBp2Bnb/2Pn1P1b/2r1R3 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 g4 hxg4 axb5 Ba6 Qd3 Bb7 Qd1 Bc8 Kd2 d5 Kd3 c5 b4 a5 e4 g5 h4 d4 e6 a4 b6 a3 b5 a2 b7 g3 h5 g2 e7 g4 e5 c4+ Ke4 d3 b6 g3 Be2 d2 Bf3 Ra5 Nh3 g1N Bb2 g2 Nc3 Qd7 Ng5 Rd5 Ne6 Rd4+ Kf5 Nc6 b8R Na5 b7 Ne2 Re1 g1B Nb5 Bh2 Ra8 Qc6 b8R Qd7 Rb1 a1N Rb6 N1b3 Raa6 Rh7 Ra1 Rg7 Ra3 Rgg4 Bc3 Ng1 Qe2 d1R Qe4 Rh4 Qg4 Rc1 Bb2 Qd8 Bc3 Nd2 Nd6+ Kd7 e8B+ Ke7 Bd7 Ne2 Nc7 Qe8 Be6 Bd7 Rb5 Ng3+ Kg5 Bc8 Na8 Bd7 Bed5 Bc8 e6 Bd7 Bb4 c3 Bc5 Rb4 Bb3 Bc8 Bd4 Bd7 Ree5 Bc8 Kf4 Kf6 Rc6 Ne7 Rcb6 Nec6 e7 Na7 Rc6 Bf5 Ra6 Nc8 Rab6 Qd7 e8B Qe7 Bd7 Qe8 Ba2 Bg6 Bb3 Kg7 Re3+ Kh7 Re1 Bf5 Kg5 Be6 Bh8 Rd4 Nc4 Bf5 Rg6 Be6 Nd6 Rb4 Qf4 Bh3 Qf5 Rhc4 Qg4 Rd4 Kf6 Ngf1 Kg5 f6+ Kf5 Ng3+
3RrN1q/BqN3Bp/p1N1N2q/1B1PqBR1/P1qn2QP/2k5/Kn3rbb/8 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 f5 gxf5 c5 bxc5 Qd5 Ba3 Qd7 Bc1 Qd8 d4 Kd7 Kd2 Kc6 Kc3 Kd5 Kb2 g5 a4 e5 f4 b5 h4 b4 c6 b3 c3 g4 c7 g3 f6 e3 f7 a6 f5 g2 f6 e4 Bd2 e2 Bc1 Kc4 Be3 Nh6 Nf3 g1Q Ng5 Nc6 Ne6 Qg8 Rg1 Na5 Rg5 Bb7 c8B Bd6 f8N Nf5 f7 Bh2 Bf2 e3 Na3+ Kd5 Rc1 e1Q Bb5 e2 c4+ Ke4 c5 Qd2+ Kb1 e1Q c6 b2 c7 Nc4 Ka2 Kd3 Qg4 Bg2 Rd1 Qe5 Bcd7 Qe8 c8N Kc3 Ne7 Qdf4 Bg1 Qg6 Nc6 Qh6 d5 Rd8 Ba7 Nd4 Rf1 Rg8 Rb1 Rg6 Rg1 Rf6 Rf1 Qc1 Rff5 Rb8 Rg8 Qf1 Rfg5 Rf2 Ng6 Qee1 f8B Rf5 Ned8 Bf3 Bg7 Nd2 Bc4 Bg2 Rh5 Rf2 Rg5 Q1e5 Bf5 Ra8 Be2 Nc4 Ne6 Q8b8 Bf8 Qh8 Bg7 Qe5 Re8 Rd8 Ngf8 Rc8 Rd8 Rb8 Rd6 Re8 Rd7 Ne3 Bed3 Nd1 Rd8 Qfe2 Nc4 Qf1 Nb6 Qfe2 Na8 b1Q+ Ka3 Qf1 Nac7 Qb7 Bb5 Nb2 Ka2 Qc4+
rR4B1/1BRPb1pR/1r2r2q/2r5/n1p1RQPN/2B2q2/b1P2KNB/n3n2k w - - 0 1 illegal: No proof kernel
q1Q5/1p1NB2P/3b2R1/1N2r3/NPrp2r1/Knn3k1/1RBP1NbR/nRnr4 w - - 0 1 illegal: No proof kernel
1N2rNb1/n1K1R2B/1p3bp1/3q1rP1/1PB1Pq1r/3B1bpR/Q4N2/B3kNn1 w - - 0 1 illegal: No proof kernel
n1r5/pB1n4/rNRP1pRq/P1b2qR1/1p1B1Pn1/1kb5/2R1Q3/1B1K1BNb w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 gxh5 c5 bxc5 Bf5 Ba3 Be6 Bc1 Bc8 d4 Kd7 h4 Ke6 f4 Kd5 a4 b5 c6 g5 a5 e5 c7 b4 h6 e3 h7 e2 h5 Kc4 h6 e4 d5 g4 Rh5 g3 Ra2 g2 Be3 Qd7 Bd4 Bb7 c8B Na6 Rg5 Bc5 Nc3 Nf6 Na4 Qf5 c3 Nd7 d6 f6 Rc2 Rb8 Nb6+ Kb3 c4 Nc7 Rg6 Rf8 h8R Na8 h7 Rg8 Kd2 e1N Qe2 e3+ Kd1 Nd3 Rg5 Rf8 Rhg8 N3e5 h8R Ng4 R8g6 Be4 Ba6 Rfc8 Bb7 Rc6 Rc8 Bd5 Na4 Ra6 Rc6 Rc8 Nb6 Be4 Bb2 Bd4 c5 Bc3 Nf3 g1Q Ba1 Qh2 Ng1 Qh6 Bb2 Be1 Bd4 Bf2 Rc7 Re8 c6 Bh1 Rc8 Rh8 c7 Rf8 Re8 Rh8 c8B Rg8 Be4 Rh8 Bcb7 Rf8 Re5 Rc8 Nf3 Bg1 Rec5 Bf2 Rc6 Bg1 Qe1 Bf2 Ng1 e2+ Kc1 Be3+ Qd2 e1B Kd1 B3f2 Qe2 Be3 R2c5 Bc3 Bb1 Ba1 Rc2 Bc3 Be5 Bc5 Bd4 Bd2 Rg7 Be1 R7g6 Bc3
2Q1NbBr/2B1qRp1/1r1P1Rnq/1N3p1K/B3NP2/2p3P1/k3N1b1/n1n1bB2 w - - 0 1 illegal: No possible last move, all moves rejected
2B3bB/n1q1Rn1p/nNPk2N1/2prnp2/r1P1b2b/3BKP2/2NN4/BRQ5 w - - 0 1 illegal: No proof kernel
b1r2q2/rn4pR/1KQ1B1N1/P6p/1BN2nPP/3np3/1bRNBk1r/3B1N1n w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 Qc7 Bd3 Qb6 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 d5 f4 b5 c4 b3 a4 b2 a5 b4 c6 b3 Kc5 d4 c7 e5+ Kb6 e4 c5 e3 c6 d3 Qc2 d2 Ne2 d1N Ng3 Ba3 Bd2 Nh6 Be2 Bb7 Nf1 Ng4 Bb4 Ngf2 Ra2 Nd3 Nbd2 Qf8 c8B b1R c7 b2 Be6 Rc1 c8B b1N Qc6 Nbc3 Rc2 Na6 g4 h6 Bcd7 N1f2 h3 Bb2 Bb3+ Qd6 Bde6 Ra7 Rh2 Ba8 Ba4 Nac5 Bab3 Ke7 f6+ Kf8 f7 Ke7 f8N Kf6 f5 Ke5 f6 Kf4 f7 Nh1 Ba4 Nb7 Nd7 Qf8 Ne5 Rh7 Nec4 Rh8 Bd1 Ne2 Bb5 Rh7 Ne4 Kf3 Ba6 Qb8 f8N Rh8 Ng6 Qf8 Rg2 Rh7 Rg1 Rh8 Ned2+ Kf2 Rg3 Ke1 Rf3 h5 Rf6 Nef4 h4 Kf2 Bb5 Qb8 Ba6 Rc8 Rf8 Qd6 Rh8 Qf8 Rh7 Ra1 Bb5 Ra2 Nd6 Ne5 Bbe2 Ned3 N6c4 Ba1 Rc3 Rc2 Nb1 Bb2 Bf3 Re2 Nbd2 Kg1 Rc2 Rh2 Bfe2 Kf2
qb3R2/1rPrB2p/N1n2Q2/Nkn5/4pR2/3r1p1P/b1nrRP1N/1KR2B1N w - - 0 1 illegal: No proof kernel
1R2R3/pr1Q4/1pP1B1p1/Nq1r2b1/Pn2K1B1/k1b5/bN2bBP1/RR1nB2q w - - 0 1 illegal: No proof kernel
1N1QRq1r/p1n1K3/3BRp1p/1N2q1nP/3qN2B/PB1b2nN/1b3P2/1qk2B2 w - - 0 1 legal: proof: e4 c5 g4 e5 b4 d5 bxc5 dxe4 g5 b5 g6 f6 Na3 Na6 Nc4 Bd7 Na3 Rc8 Nb1 Rc7 Ne2 Bh3 Ng1 Rf7 gxf7+ Ke7 Be2 Bc8 Bf1 Bd7 Ke2 Ke6 Ke3 Kd5 h4 g5 Rh3 b4 d4 h6 c4+ Kc6 h5 b3 d5+ Kc7 d6+ Kc6 Nd2 Bf5 d7 b2 a3 g4 Rf3 g3 Nh3 Bd6 f8B g2 Rg3 Ne7 Rg8 g1Q Ra2 Kc7 c6 Kb6 c7 Ka5 c8N b1Q c5 Nc7 Rb2 Qg4 Rb6 Qe8 d8N Qh4 Rb3 Ka4 Nc6 Bh7 Nb8 Nf5+ Ke2 e3 Kf3 Ng3 Rb6+ Bc2 Be7 Qf7 Re8 e2 Ke3 e4 Kd4 Bf4 Re6 e1N Nd6 e3 Nb5 e2 Bf8 Qg8 Be7 Na8 Kd5 Nf3 Bf8 Bg5 Kd6 e1Q Kd7 Qc4 Kd8 Qe5 Ne4 Kb3 Kd7 Bh4 Bg5 Kb2 Qd6 Qcc3 Qc7 Qd2+ Bd6 Qdd4 Qd8 Bd3 Ke7 Kc2 c6 Kb2 c7 Kc2 c8B Nc7 Bb7 Kd1 Bf4 Bg5 Bc1 Bd2 Ba8 Bc3 Bd5 Bb2 Bg5 Kc2 Bh4 Ng5 Bc4 Kc1 Bb3 Qf8+
q2R1bb1/2p1b2n/2r3nR/rp1p1Q1K/2q1B1p1/BN1P2P1/3BPN1k/1B3RR1 w - - 0 1 illegal: No proof kernel
5rRR/q2r2pN/bpp2bB1/P1P1NnP1/Q1N1n1K1/3qB2N/6Rp/R1n1k3 w - - 0 1 illegal: No proof kernel
1R1r2q1/3P2kp/1B1bp2N/1p4KQ/Rn3rpr/1bN1N1P1/1P1N2R1/1q1BnR2 w - - 0 1 illegal: No proof kernel
n1q2b1K/2r1b1Pp/NN3p2/1RB3nk/bR1B1Rp1/RBp1qP2/2rB2QP/8 w - - 0 1 illegal: No proof kernel
2BNNRbN/p5N1/K1pp4/n1PP2RR/p5q1/bb1n2rQ/3Pp2R/2B1kr2 w - - 0 1 illegal: No proof kernel
8/BpbRp1k1/3r2q1/QB1rpp2/pn1BPB1N/3b1Prp/NP1R4/KR2R3 w - - 0 1 illegal: No proof kernel
Q1rN4/K1P1R2R/3QN3/2rnBrP1/1r2r1P1/2qqq2R/2n3k1/NN3N2 w - - 0 1 legal: proof: d4 c5 dxc5 f5 e4 a5 exf5 g6 b4 Bh6 a3 Bf4 a4 b5 axb5 a4 Nf3 Bg3 Ng1 Bc7 f4 Kf7 f6 Bd6 f5 Bc7 Bd3 Ba5 bxa5 Kf8 f7 Kg7 Qd2 Kf6 Qd1 Ke5 f6 Ke6 g4 Bb7 Bf5+ gxf5 g5 Bf3 h3 Bg4 hxg4 Ra6 Bf4 Ra7 Bc1 Ra8 Kd2 Kd5 Kc3+ Ke4 Kb4 d5 f8N e5 c4 h5 f7 d4 a6 a3 a7 a2 c6 h4 Kc5 h3 c7 h2 Kb6 d3 c5 d2 c6 f4 Nh7 f3 f8N f2 Nd7 f1R Ne2 Kf3 Nhf8 e4 Bb2 e3 Ng3+ e2 Be5 Qe8 c8R Kg2 c7 e1R Ne6 Rf5 Nf1 Na6 Ndc5 Ne7 Nb3 Nb4 Rd8 Rc8 a8Q+ Re4 Ka7 Rb8 b6 Nc2 b7 Nd5 Rd7 Rc8 b8N Rg8 Qc1 d1Q Rh7 Qd3 Nc6 Rb8 Qb2 Rbb4 Qd4 Qe7 Qb6 Rc8 Ncd8 Qc5 Rh3 Qce3 Qc5 Rbc4 Qb6 Rc5 Qd6 Rb4 Nb1d2 Re4 Re1 Rb4 Nb1 a1Q+ Na3 Qac3 Nb1 Re4 Na1 Kf2 Rg1 h1R Rh7 Rh3 Rh1 Rhf3 R1h3 R3f4 Re2+ Kg1 Re7 Rb4 Reh2 Rfe4 Rh1+ Kg2 Rhh7 Nf6 R1h3 Nd5
Q4r2/Nn1k1nnB/3B4/1N1bQPnP/1N1n4/1P4N1/3RKQ1r/nN1r4 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 a5 a4 Ba6 axb5 a4 b3 a3 Ra2 Bb7 Rb2 Bc8 g4 axb2 Bd3 h5 Bc4 h4 Bf1 Qd6 Na3 Qh6 Nb1 Qh5 gxh5 Bd7 Bd3 Be6 Bf1 Bc8 Nh3 g5 Rg1 g4 Bg2 g3 Rh1 Bg7 Bf1 g2 Ng1 Bf6 Na3 Be5 Nb1 Bg3 hxg3 Kf7 Ne2 Kf8 Ng1 Ke8 f4 c5 d4 e5 d6 c4 d7+ Ke7 d8N e4 f6+ Kd7 b6 e3 g4 e2 d5 c3 g5 h3 g6 c2 g7 h2 d6 Ke8 b7 Ra5 f7+ Kd7 f8Q Ra1 Qd5 Na6 Ne6 Nh6 g8Q Nf7 Nc7 Nc5 Nb5 Ra2 Kd2 e1N Ne2 g1R Ng3 Nf3+ Ke2 N3g5 Qgg7 Rg8 Qge5 Rh8 Bg2 Rd1 Be4 Rg8 Rg1 h1N Bh7 Rh8 Bd2 Rg8 Rg2 c1N+ Ke3 Ne2 Bb4 Nd4 Rd2 Rh8 Qg2 Rg8 Qf2 Rh8 Qh6 Rf8 b8N+ Kd8 d7 Bb7 Qhe6 Bd5 Qc6 Nb7 Kd3 Ra4 Bd6 Ra2 Ne4 Ng3 Na6 Ngf5 Nb4 Ng7 f5 Nh8 Ng3 Nhf7 N1c3 b1N Ke3 Nc2+ Ke2 Nba3 Nb1 Nd4+ Kd3 Nde6 Ke2 Nc2 Qa6 Na1 Qaa7 Rc2 Qa8+ Rc8 Bb8 Ke7 d8N Rc2 Ndc6+ Kd7 Nca7 Nd4+ Kd3 Rh1 Bd6 Rh2 Ke3 Rc1 Kd3 Rd1 Ke3 Nde6 Ke2 Nd4+
1bqr4/1P3RK1/1Q4P1/3Q1Prn/qQR2B2/p4N1r/2Q1BQnB/k2n4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b6 c5 b3 a5 Na3 a4 Nc2 a3 Nb4 cxb4 Rb1 Bd7 Ra1 Ba4 bxa4 Qd7 Qf3 Qc7 Qd1 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 h5 g4 e6 f4 b3 d4+ Kb4 g6 Kc3 f6 h4 a5 b2 b7 b1R f7 h3 g5 h2 g7 Rb6 d6 Rh3 f5 Rd3 d7 Rh3 g6 Rd6 d5 Raa6 Be2 Be7 f8Q Nf6 g8Q Ne4 Bf4 Kb2 Rc1 Nf2 Nf3 Qc8 d8B Rac6 a6 Rc2 Qf1 Nd1 Bc7 Rd8 a7 Bd6+ Kf6 e5 a8Q e4 Qa4 e3 Qf2 Nd7+ Kg7 Nf6 Qe7 Rd2 Rc4 Ka1 Qc2 Rd3 Re1 h1Q Qe4 Be5 d6 Qh2 d7 Nh5+ Kh7 Qg2 Qgd5 Qg4 Bh2 Bg3 Bf4 Rd4 Qe7 Rd3 Qb4 Rd2 Bd3 e2 Rh1 e1N Be2 Ng2 Re1 Rf8 d8Q Rd4 Qdb6 Rd8 Bg5 Bb8 Bgf4 Nf6+ Kg7 Rd3 Nd4 Rdg3 Nf3 Qh4 Bd3 Rg4 Re7 Rg5 Be2 Qg4 Rf7 Qh4 Bd6 Qe4 Bdf4 Nh5+ Kh6 Qe8 Kh7 Qa4 Kh6 Nf6+ Kg7 Nh5+
Q2Q4/1Pr2PbB/1Q3K1N/n1rbP2N/QR2r3/2Q1pN2/6k1/2Bnrn2 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 e5 gxh5 e4 c4 e3 cxd5 Ne7 dxe3 Bd7 e4 Bc8 e5 Ng8 e4 a5 e6 f5 e5 a4 Ra2 Qd6 Re2 Qb6 Re4 Qa5 bxa5 fxe4 Ke2 Ke7 Ke3 c5 Kf4 g5+ Kf5 a3 f4 e3 h4 a2 h6 a1N a6 c4 b6 c3 a7 c2 h7 g4 h5 g3 d6+ Kd8 b7 g2 h6 Nd7 e7+ Ke8 Bd3 Kf7 Ne2 g1R Ng3 Ngf6 Qe1 Nb8+ d7 Nd5 Rh4 Nc3 Nh5 Nb3 Nd2 Nc6 Nf3 Nd1 Qc3 Re1 Be4 Rb8 a8Q Nca5 Kg5 Ke6 d8Q Bd7 Qb6+ Bc6 Kg6 Nd2 e8Q+ Be7 Bd3 Kd5 f5 Nf1 f6 Bf8 Rb4 Rc8 Kf5 Rg8 h8N Rc7 h7 Rg4 Nf7 Rd4 h8Q Re4 Bb2 c1R Nh6 Rc2 f7 Rc1 Kf6 Rc2 Qd2 Rc5 Bc1 Rd4 Bb1 Bd6 Qc3 Rdc4 Ba2 Ke4 Nh4 Bd5 Qa4 Rd4 Qhd8 Bf8 N4f5 Kf3 Nh4+ Kf2 Nf3 Kg2 Bb1 Rg4 Bg6 Re4 Bh7 Bg7+
2N2n1n/Q2Qn2k/1B3P2/2K1pP1B/1Q4R1/R2rQ2b/1rPn4/n1Q1Rn2 w - - 0 1 legal: proof: d4 a5 e4 b5 b4 f5 exf5 c5 dxc5 Nc6 a4 Rb8 axb5 Nh6 b6 Na7 b5 Ra8 Nc3 Ng8 Na2 Nc6 Nb4 Nb8 f4 axb4 h4 g5 g4 Ra3 f6 Ra4 f5 Qc7 f7+ Kd8 Qe2 Qf4 Qd1 Ra8 f6 Qf5 gxf5 g4 Be3 Bh6 Bc1 Bg5 hxg5 Ra7 Qd4 Ra4 Qd1 Ra8 Kd2 h5 Ke3 d5 Kd4 e5+ Kd3 b3 c6 h4 b7 h3 b6 d4 Kc4 d3 g6 d2 g7 b2 Kb4 b1N Bb2 h2 Kc5 g3 Ba6 g2 Ra4 Rh3 Be2 Rd3 Ra6 Nd7+ Kc4 Nf8 b8Q Ne7 g8R Ng6 b7 Nh8 Qc1 d1N Bd4 Ne3+ Kc5 Nd2 Qa7 Rb8 Nh3 g1N Nf2 Nd5 Ra3 Ne7 Ne4 Ngf3 Re1 h1N Rg4 Ng3 Nd6 Ngf1 c7+ Kd7 Bf2 Nd4 Qb6 Nh7 f8Q N4b3+ Kb4 Na1 Qe3 Nc6+ Kc5 Ne7 Qf7 Nf8 Qb3 Rd4 Qb4 Rd3 Nc4 Ke8 Nb6 Bd7 c8Q+ Kf7 Bf3 Be6 Qd7 Bd5 Nc8 Bc6 Bd1 Bg2 Be2 Bh3 Bd1 Ra8 b8Q Ra7 Bg1 Rb7 Qa7 Rb6 Re4 Kg8 Bh5 Rb7 Rg4+ Kh7 Qf3 Rd6 Qbb5 Rd3 Kb4 Rc7 Qe2 Rcc3 Bb6 Ne6 Qe3 Nf8 Qba4 Rb3+ Kc5 Rb1 Qb4 Rb2
1Q4r1/8/2kP2P1/PRr2R1K/r1p2B2/1RNRq1R1/r1p2Q1N/bn1N2b1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 d5 e4 b5 exf5 b4 a4 Be6 c4 Bd7 c5 Bb5 axb5 Nd7 Bc4 Nb6 cxb6 dxc4 Ke2 Kd7 Kf3 c5 Kg4 e5 f4 h6 d4 e4 b7 b3 b8R e3 b6 b2 f6 e2 f5 e1B b7 c3 d5 c2 f7 c4 f6 Bf2 g6 Ba7 g7 Bb6 d6 Bf2 Nf3 Bd4 Qf1 Bb6 Bf4 Bd4 Rh3 Kc6 Kh5 Be3 g4 Qe8 g5 Ne7 g8R Nd5 Nh2 Bg7 Qf2 Nc3 Ra3 Bb6 g6 Qe3 Rg3 Bd4 Rge8 Rg8 f8N Ra6 f7 Ba7 Kh4 h5 Ne6 Bh8 Kg5 h4 f8R h3 Nc5 Rb6 Re6 Rb4 Nd3 Ra4 Kh5 Bhd4 Re5 Bac5 Ng4 h2 Rff5 h1R+ Nh2 Bb6 Rb5 Rc1 Nd2 Ra1 Ne4 b1R Nb2 Ra2 Nd1 Rbb2 Rab3 Nb1 Rd3 Rbb4 Nec3 Bf6 Nd5 Ba1 N5c3 Ba7 Re8 Bb6 b8Q Rbb2 Rb3 Bc5 Ree5 Ba7 Ra3 Rb5 Rb3 Bb6 Re7 Bd4 Rb7 Rc5 R7b5 Qe7 Qf1 Bg1 Qf2 Qe3
nRNrRR1r/2NP2p1/8/8/Bp2Q1N1/2nK1QNP/1kn2bP1/1nq3N1 w - - 0 1 legal: proof: c4 b5 e4 h5 Qxh5 d5 cxd5 c5 a4 a5 b4 c4 Qh7 f5 exf5 c3 Ba3 Bd7 bxa5 b4 Bb2 Bb5 axb5 cxb2 Ke2 Kd7 d4 Kd6 f4 e5 h3 e4 f6 e3 b6 Nc6 a6 Qc8 b7 Nd8 b8N Qg4+ Kd3 e2 f5 Ra7 f7 Rc7 f6 Ne6 a7 Rc8 a8N Qh4 Nc6 Ne7 Nc3 b1N Ne5 Ng6 Nc7 Qf4 Ng4 Qf5+ Ne4+ Kd7 d6 Kc6 d5+ Kb6 d7 Qg5 d8N Bd6 f8Q Qh5 f7 Bc5 d6 Qh6 d7 Bf2 Ra8 Qc1 Rb8+ Ka5 Nb7+ Ka4 Nbd6 Kb3 Ng3 Ne7 Qe4 Rd8 Nc8 e1N+ Ke2 Nf3 Kd3 Nd5 Be2 Ka3 Bd1 Nfd4 Ba4 Kb2 Qf3 Nb6 Qe7 Nc2 f8R Ned4 Qee4 Na8 N1e2 Ne3 Re1 Nb5 Ng1 N5c3 Qd5 Nc2 Ree8 Rh6 Qde4 Rh8
1K2n3/2Q3b1/QR1pQRqr/BbQ1P1P1/4Rp2/1p3b2/B5QP/1b1kN3 w - - 0 1 illegal: No proof kernel
N1Q1B1R1/BbN1r2N/Qr1P1pN1/2rq4/1q6/Nrp2k1K/B2P1Pp1/8 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 b5 a4 e6 axb5 Be7 b6 Nd7 e3 Kf8 b5 Bf6 Ra4 Nb8 Rb4 Bd4 exd4 Ke8 g4 axb4 g5 Kd7 g6 f6 Qe2 Nc6 Qh5 Ne5 Qd1 Nf7 gxf7 Ra7 Bg2 Ra1 Bf1 Ra8 Qa4 g5 Qb3 Ne7 Qd1 Ng6 h3 g4 h4 Nf4 Ba3 Nh3 Bc1 Ng5 hxg5 Qg8 Qc2 Qe8 Qd1 Qd8 f8N+ Kd6 g6 c5 g7 h5 g8B h4 b7 e5 b8N b3 b6 g3 b7 c4 Qe2 h3 Ba3+ Kc7 d6+ Kb6 d7 c3 d5 e4 d6 e3 Bc5+ Ka5 Nf3 h2 Nh4 b2 Na6 Rh6 b8Q Rh5 Nhg6 Qb6 d8N Qb4 Na3 Bb7 Ba7 Rc5 Rg1 h1Q Ba2 Qd5 Qc8 Rb8 Nh7 Ka4 Qd3 b1R+ Ke2 Ka5 Nc7 Rb3 Nde6 Ka4 Na8 g2 Nec7 Ka5 Rh1 Ka4 Rh4 Ka5 Re4 Ka4 Kf3 e2 Kg3 e1R Re8 Re7 Kh3 Ka5 Na6 Ka4 Rg8 Ka5 Nc4+ Kb5 N6c7+ Kc6 Qe2 Ba6 Na3 Rb6 Qc4 Bb7 Qa6 Qf7 Ne8+ Kd5 Bb5 Ke4 Nec7 Kf3 Be8 Qd5
2K3Q1/4PbP1/3NP2n/4BNq1/R1b1q2r/1BNQ1n2/Nr2Q1q1/nN4kr w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 h4 Nf6 b4 Be6 g4 Bf5 Ra3 Bh6 Rf3 Qe7 Rf4 gxf4 g5 Qd8 g6 Bg5 hxg5 Ng8 Rh3 Bd7 Rh1 Bc8 Kf2 Kd7 Kf3 a5 Kg4 h5+ Kf5 c5 d4 f6 e4 f3 e6+ Kd6 e5+ Kc7 b6+ Kb7 b5 h4 d6 c4 d7 a4 g7 f2 d5 a3 e7 c3 Ke6 f5 g6 a2 d6 a1N Ne2 c2 Bb2 c1Q Nec3 f4 Bc4 f1Q Qe2 f3 Bb3 Nh6 g8Q h3 g7 f2 Rg1 h2 Rg4 h1R Ra4 Nc2 Ba1 Nc6 Bb2 Kb8 b7 Qe3 Ba1 Ra5 Bb2 Ka7 b8N Kb6 Na6 Qd4 Nb4 Kc5 b6 Rb5 b7 Qg2 b8N f1B Nba2 Qde4 Ba1 Qa5 Bb2 Bb7 d8N Na1 Kd7 Nd4 Nbc6 Nf3 Nd4 Bd5 Nf5 Bf7 e6 Rh7 Kc8 Rb7 Qe1 Bc4 d7 Rh8 Qe2 Rb6 Nh4 Kd4 Nb7 Qag5 Nd6 Rb7 d8Q Rb4 Qd1+ Ke3 Nhf5+ Kf2 Qe2+ Kg1 Qd7 Ng4 Qb5 R8h4 Qd5 Nh6 Qdd3 R1h2 Ncb5 R2h3 Be5 Rh1 N5c3 Rb6 Bd1 Rb2 Bc2 Rf4 Bb3 Rfh4
b3Q1r1/QNP3q1/R1P2QR1/3nn2B/7q/PKN5/3Qr1nr/k2q1QRb w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 f5 dxc5 h6 f4 e6 g4 Ne7 gxf5 Ng8 f6 Qb6 f5 Bd6 Bg5 hxg5 e3 Bf4 exf4 Qd8 Kd2 Kf7 Kc3 d5 h4 b5 a6 b4+ Kb3 e5 c4 d4 a7 d3 c6 g4 a3 g5 c7 e4 h5 g3 h6 e3 h7 g4 c5 e2 c6 e1N Bg2 d2 Ra2 Nd7 Ne2 Bb7 Bf3 g2 Rg1 g3 Nc1 Ne5 Nc3 Ne7 Nd3 Nd5 Nc5 Rg8 Qc2 d1Q h8R Qe7 Rb2 Rae8 Rh6 Ba8 Rg6 Rh8 Nb7 Rh2 Bh5 Rg8 Rf1 g1R Rb1 Rgg2 Rg1 Re2 Rb2 Kf8 f7 Qh4 Rb1 Ke7 f6+ Ke6 f8Q g2 Qc8+ Nd7 f5+ Ke5 f7 Kd4 f8Q Ne5 f6 N1f3 f7 Ne1 Rh1 g1Q Qce8 Qgg4 Qh6 Ng2 f8Q Qd7 Rg1 Qg7 Ka2 Kc4 Qf1 b3+ Kb2 Kd4 Qcd2+ Kc4 Ka1 b2+ Ka2 Qf4 Qg5 Qe4 Qgf6 Qh4 Ra1 b1B+ Kb2 Bc2 Rb1 Bf5 Ka2 Be4 Rb6 Ne1 Ra6 Bh1 Nd8 Bb7 a8Q Ng2 Qb8 Ba8 Qa7 Qc2+ Ka1 Kb3 Nb7 Qd1+ Qc1 Qdd4 Qcf4 Kc2 Ka2 Qd2 Nd1 Kc1+ Kb3 Kb1 Qh6 Qc1 Nc3+ Ka1 Qd2 Qd1+
3NQN2/n1P3rb/2b1nR2/BbkrRQ2/2P1q2r/R1R3QK/R2Pb3/n7 w - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 e5 fxe5 b5 b4 Bd6 bxc5 b4 a3 b3 Rh5 Bc7 Rh3 Bd6 Rh1 Bc7 c3 d5 e3 b2 Qg4 d4 Qd1 Ba5 Bd3 Bb4 Bc2 d3 axb4 dxc2 Kf1 Ke7 g4 a5 Kg2 h5 b5 f5 e4 h4 g6 f4 c6 a4 g7 f3+ Kh3 a3 c7 a2 e6 Kd6 e5+ Kd5 c4+ Kc5 e7 f2 e8Q Nh6 g8R Nc6 e6 Qg5 e7 Ra7 b6 Rb7 Qf3 Bd7 Na3 b1B Nb5 Be6 Rf8 Ra7 b7 Nd4 b8R Bg8 Rf6 Bf7 Nd6 Qg6 g5 Ng4 Ne2 Qe4 g6 Ne6 g7 Ra5 g8Q Ne5 Ra8 Nc6 Nd4 Na7 Bb2 c1R Qgg3 Rg1 Bc3 Rh7 Rh2 f1B+ Rg2 Bg6 Nf7 Be2 Nd8 Rg7 Qff2 Rh1+ Rh2 Rb5 Ba5 Bc2 Rc1 Ba4 Rc3 a1N Qff4 Bh7 Qff3 Rb6 Qff4 Rd6 Qf5+ Rd5 Ra3 Re1 Rf2 Bb5 Rff3 Rg1 Rfc3 Rg4 Qf7 Rg7 e8R Rf1 Re7 Rf4 Qe8 Rfg4 Nf3 Rf4 Ne5 Rfg4 Ng6 Rf4 Kh2 h3 Nf8 Rh4 Ra2 Ng5 Re5 Ne6 Kg1 h2+ Kf2 h1B Kg1 Rf4 Kh2 Bhf3 Kh3 Bh5 Qd7 Be8 Qf7 Bed7 Qe8 Rfg4 Rb8 Bbc6 Rbb3 Bb5 Rba3 Bdc6 Qg2 Rf4 Qg3 Rh4+
4q2K/2R1b3/q4n2/Q1qP2k1/P1Q3bb/PrB1n3/RR1rqRN1/3BR1Q1 w - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 f5 e4 a4 exf5 a3 bxa3 Ra7 a4 Ra8 g4 h5 g5 g6 Na3 Nd7 Nc2 Nb8 Ne3 Nf6 fxg6 Ng8 Ng4 hxg4 f5 Qd7 Qf3 Qd6 Qd1 Qd8 Ke2 e5 Ke3 Ke7 Ke4 c5 d4 b5 h4 b4 d6+ Ke8 d7+ Ke7 h5 b3 h6 b2 a3 g3 f6+ Ke6 g7 c4 g6 g2 f7 Kf6 h7 c3 Be2 c2 Bd2 c1B Nh3 g1Q Ra2 Qe8 d8Q+ Be7 Nf4 Ra7 f8R+ Kg5 Qa5 Nh6 g8Q Rd7 g7 Nf5 Ng2+ Ne3 Rf2 b1Q+ Qc2 Rd8 Bc3 Nd7 Bd1 Qb6 d5 Qa6 Rh2 Bd2 Qb3 Be1 Rfb2 Bf2 Qc4 Bh4 Rh1 Qf2 Re1 Qff8 Qf7 Rg8 Qff1 Qf2 h8R Nf6+ Kd3 e4+ Kd4 Bd7 Ke5 Rb8 Rh7 Rb3 Qh1 Bg4 Qg1 Qf3 Rf2 Qe2 Rb2 Rf8 Ra2 Rf7 g8R+ Rg7 Rgh8 Qec8 Re8 Qc5 Rb8 Rg8 Rb7 Rb8 Rb4 Rb2 Rf7 Rd2 Rbb2 Rb3 Rf8 Nf5 Rc8 e3 Rc6 Qd3 Ke6 e2 Kf7 Ne3 Kg7 Qe4 Kh8 Qg6 Ref1 e1Q Rc7 Qe2 Re1 Qe8+
1Qr5/7N/3QPB2/1b1qb1N1/1B3P2/1kBNb1KP/2nrb2B/r1RB1qn1 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 b4 Kd6 Qb3 f5 Ra6+ Kd7 Rf6 f4 Rxf4 e6 d6 e5 Qf3 Ke6 Re4 Qe7 Qb3+ Kf6 d5 Kf5 Rd4 exd4 Qf3+ Ke5 Qf7 Qd8 e4 g5 h3 a5 h6 c5 h7 c4 b6 a4 d7 g4 b7 a3 d6 a2 b5 a1B b6 g3 Nc3 d3 Nge2 g2 Nd5 g1Q Nef4 Kd4 e5 c3 e6 Kc4 Bd2 c2 Qe7 Ra2 Nf6 Be5 Bb4 Nc6 b8B Kb3 b7 Nh6 f3 Qg2 Be2 Ng4 Bd1 Bh6 Qf8 Rg8 h8B Nh2 Nh7 Nd4 Rg1 Qdg5 d8B Bd7 Bdf6 Bb5 d7 Qh1 Kf2 d2 Qe7 Rc8 d8N Qh5 Re1 Qf1+ Kg3 Ra1 Qd6 Qf5 Be2 c1R Nf7 d1B Nfg5 Nc2 Bc7 Qe4 b8Q Qd5 Bhg7 Ra2 Bh8 Rca1 Bhg7 Bd4 Nd3 Be3 Bh8 Bg7 Bfc3 Bgd4 Bf6 Rb2 f4 Rba2 Bb6 Be5 Bh5 Be2 Rc1 Nf3 Bg4 Bd2 Bg1 Be3 Bh2 Ng1 Nf2 Bed3 Bd1 Be2 Nd3 Ra4 Ba5 Rac4 Bab4 Rd4 Ne1 Rd2 Nd3 Ra3 Qc5 Ra7 Qcd6 Ra1
bBB1N1R1/n1bQ1QQ1/rP3n2/1QK5/P1nQrb1b/k1q2PN1/7q/4B3 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 d5 c4 Ra7 cxd5 Ra8 b4 Kd7 a4 Qe8 b5 Qd8 Ra2 Ke8 Rc2 Ra6 Rb2 Ra8 Rb4 axb4 Qc2 b6 Qc6+ Qd7 Qxb6 Qd6 Qb7 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 b3 h6 c6 h7 b2 h5 g4 f6 g3 f7 g2 h6 e6 f3 Ra7 Na3 b1N Ne2 Nf6 Ng3 Ra8 Rg1 c5+ Kc4 e5 d4 e4 Bd2 e3 Be1 Be7 f8Q e2 Qf7 Re8 h8B Ra6 h7 Nc6 b6 Qc7 Nb5+ Kd7 d6 Na7 Qh5 Bd8 d5 Re3 Bg7 Re7 h8Q Na3+ Kd3 c4+ Kd4 c3 Qf8 c2 Qff7 Nc6+ Kc5 c1B Bh6 Nc4 Bf4 Bd2 Be5 Bf4 Qa7 Qb7 Nc7 Qa8 Qb7 Na7 Ne8+ Bc7 Qg5 Nc6 Qa7 Bb7 Qfg7 Qc8 Qf5+ Kd8 d7 Ba8 Qb1 Re6 Qb5 Re7 Qb7 Na7 Bd6 Rf7 Be5 Ke7 d6+ Ke6 d8Q Re7 Bf2 e1B d7 Bg5 Bd6 Bh4 Be5 Bd2 Be1 Bf4 Rh1 Bhg5 Rh8 Bh4 Rg8 g1Q+ Bd4 Qg2 Be5 Qc2 Bd6 Qb8 Qdc8 Qc3 d8Q+ Rd7 Be7 Ke5 Bh3 Rd4 Qcd7 Re4 Bf8 Qc8 Qdf7 Qd7 Q7c6 Qdd2 Bc8 Qh2 Qcd7 Bfg5 Qd2 Bf4 Q8d7 Bd8 Qf2 Qb3 Nd6 Qe3+ Kb4+ Kd4 Qg1 Kd3 Ne8+ Kc2 Bd6 Kb2 Bb8 Qc3+ Kc5+ Ka3 Qgd4 Bdc7
1qk5/2N1RP2/1nR5/3Qnqr1/3bPN1Q/q1qN4/KnB1N1NP/2b3rQ w - - 0 1 legal: proof: g4 d5 f4 e5 fxe5 b5 c4 f5 cxd5 f4 a4 h6 axb5 Qd6 b3 Qd7 Ba3 Qd8 Be7 Be6 Bg5 Bf5 gxf5 hxg5 d4 Kd7 Kd2 a5 Kc2 c5 Kb2 a4 e4 g4 d6 g5 b6 f3 b7 a3+ Ka2 f2 d5 c4 f6 c3 b4 g3 f7 c2 b5 c1B b6 g2 Nf3 g1Q Ne1 g4 Bd3 f1Q Ng2 g3 Nc3 Rh3 Bc2 Qe8 e6+ Kd8 d7 Ne7 Ne2 Nbc6 b8N Qf5 b7 Nc8 Na6 Bg7 b8Q Rh5 Qb7 Nb6 Nb4 Qc5 Nd3 Ne5 Rf1 Qcf8 Rf4 Qfe7 Qh1 Nec4 Rh4 Rg5 Rh6 Ra6 Qa8+ Kc7 d8N Bd4 Rb1 Q7f8 e7 Nb2 d6+ Kd7 Ne6 Qb8 e8N Kc8 N6f4 Ra5 Nh4 g2 Qd5 g1N Nc7 Nf3 Nhg2 Ne5 Re6 Rc5 Re7 Rc3 Nde1 Rf3 Ned3 Rf1 Ra1 Rg1 Rb1 Nd1 Rb4 Qh8 Rc4 Nb2 Rc6 Qf8 Kb3 a2 d7+ Kb7 d8Q a1Q Nf2 Qa5 N2d3 Qe1 Ka2 Qc3 Re8 Qfc5 Re7 Q5b4 Qh8 Qbc5 Qh3 Kc8 Qh4 Q5a3+
rR1K2r1/R5r1/q3P1rN/2bN1P1k/QnBb3N/2P1NRb1/4b3/5nQN w - - 0 1 legal: proof: d4 e5 a4 b5 axb5 h5 g4 f5 gxh5 c5 dxc5 f4 b4 f3 Bb2 Qh4 Ra3 Qd4 Rxf3 Qh4 Rf7 Qd8 Bd4 exd4 Kd2 a5 Kd3 d5 h4 g5 f4 a4 e4 g4 c3 g3 h6 g2 c6 a3 h7 a2 b6 a1B b5 Be6 h5 Bb4 b7 Nf6 e5 Bc5 f5 Ba3 h6 B3b2 c7 Qd6 c8N Na6 b8R Nh5 b6 Rg8 h8N Bc1 b7 Bf4 h7 Bb2 Nd2 Ba3 Nh3 g1B Ng6 Ng3 h8N Bge3 Be2 Nf1 Nh4 Bg3 Nf2 Bb4 Rh7 Kf8 Nc4 Bf7 e6 Bh5 Rd7 Qc6 Nf7 Kg7 Rg1 Bf8 Nh6+ Kf6 Qb3 Kg5 Nh1 Bf3 Qd1 Kh5 Ne7 Bg4 Qa4 Qb6 Kc2 Nb4+ Kb3 d3 Rc7 d4 Nd5 Bef2 Nce3 d2 Kc4 d1R Re7 Qa6+ Kc5 Rb1 Bc4 d3 Rg2 Bg1 Rf2 d2 Rf4 Be2 Rf3 Qa7+ Kb5 d1R Rd7 Rd4 Rh7 Rdg4 Rg7 Na2+ Kc6 Qa6+ Kd7 Rg6 Kd8 Nb4 Ba2 Rb3 Rf7 Nc2 Neg4 Bd3 Rc8 Nfe3 b8Q Be2 Ra7 Rb7 Bc4 Rbg7 Qb6 Nf1 Rb8 Nb4 Qc5 Bf4 Qf2 Bg3 Qg2 Bgc5 Qg1 Bd4 Nge3 Bfc5+
kr1Q2Q1/1RrP2r1/2PKb1Q1/5b1r/6rN/2BPb1qB/1Q4R1/n1QBq3 w - - 0 1 legal: proof: e4 b5 a4 d5 exd5 h5 axb5 c5 g4 Bb7 gxh5 Ba6 b6 Bc8 b4 e5 f4 e4 b5 Bf5 Nc3 Bc8 Na2 Nd7 Nb4 Ne5 fxe5 cxb4 Ke2 Kd7 Ke3 a5 Kd4 g5 c4 f5 h4 a4 e6+ Kd6 h6 f4 e7 e3 e8B f3 h5 b3 b7 Kc7 Ke5 Kb8 d6 a3 c5 a2 d7 b2 c6 b1B h7 g4 h6 g3 Rh2 g2 Bb2 e2 Bc3 f2 Bh5 Bc5 Nf3 g1R Nh4 Be3 Kd6 e1Q Qc1 Ne7 Rg2 Qg8 Bd1 Bf5 Rb1 a1R Rb3 Nd5 d3 R1a7 Rb2 Nb4 Rb1 Qg4 Rb3 Rg8 h8Q Rg7 h7 Nc2 Qd8 Na1 h8Q Rh1 Qh6 Qg3+ Kd5 Rh3 Qg6 Rh1 Nf3 Rh5 Nh4 Ra4 Rb2 R8a7 Rb1 Rg4 Qg8 Kc7 Rb2 Kb6 b8Q+ Rb7 Qe5 Ka7 b6+ Ka8 Kd6 Rb8 Qd8 Ba6 Rb4 Bc4 b7+ Ka7 Qg8 Bce6 Rb3 Rc8 Rb1 Rc7 b8Q+ Ka6 Qbd8 Ka7 Bfe2 f1R Rb8 Rc8 Rb7+ Ka8 Bf3 Rg1 Bfe2 Rb4 Bg4 Rb2 Bh3 Rb1 Rc7 Rbb8 Rb7 Rc7 Re2 Rf1 Rg2 Rf4 Qef6 Rg4+ Qe5 Qf3 Qb5 Qff2 Qbb2 Qg3+
1Q2Q1N1/2Pr3Q/1B1Q2Nq/2qPR1bK/1Nq3RP/2q1Q1r1/b5k1/3nb1q1 w - - 0 1 legal: proof: e4 d5 a4 b5 axb5 c5 g4 h5 gxh5 f5 d4 Nc6 dxc5 d4 Bg2 Nb4 Bf3 Nd5 exd5 Bd7 Bg2 Bc8 Be4 fxe4 Ke2 Kd7 f4 g5 h4 a5 c4 e5 b4 g4 h6 g3 h7 e3 Kf3 d3 Kg4 g2 f5 e2 c6+ Kd6 c7 e1B b6 e4 b7 Ke5 b8Q d2 c5 a4 c6 e3 b5 Ke4 b6 a3 b7 a2 Ne2 g1Q+ Kh5 Kf3 f6 Be7 f7 Qf8 Na3 Kg2 Qb3 d1Q Nc2 Qd4 Nb4 Bf5 c8N Ra7 Qd6 Bg5 b8Q Rd7 c7 Qc5 Ne7 Nh6 Ng8 Ng4 Rb1 Qg7 f8Q a1Q Qfe8 Qa6 Qd3 Qac4 Nf4+ Kf3 Ng6 Nf2 Qd2 e2 Qde3+ Kg2 Ra1 Qgc3 Ra4 Nd1 Bb2 Qc1 Bd4 Bb1 Rh3 Ba2 Rf3 Bb1 Rf5 Ba2 Re5 Q1c3 N8e7 Rf8 h8Q Rf3 Qh7 Rg3 Ng8 Bd2 Qg7 e1Q Qh8 Qef2 Qh7 Qc6 Bc5 Be1 Bb6 Qf6 Nd3 Q4c5 Rg4 Q6b5 Nb4 Qbc4 Qh8 Qf8 Qh7 Qh6+
1n2B3/2P3rk/B7/KPQrn1b1/1qqRrQB1/3q3N/2rB1NP1/1NB1q3 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qd8 f4 Na6 b4 Bg7 f6 Bf8 h3 Nb8 f5 Bb7 Ra3 Be4 Rf3 Bb7 Rf4 gxf4 Nc3 Bf3 Nb1 Bg4 hxg4 Bh6 Bd2 Bg7 Bc1 Bf8 Kd2 Kf7 Kc3 e5 g5 h5 c6 d5 b6 a5 c7 f3 c8B f2 b7 h4 b5 e4 Qd3 a4 Qc4 a3 Be2 f1Q Nh3 e3 Qc5 d4+ Kb4 d3 c4 d2 Bg4 d1R Nf2 Nh6 g6+ Kg8 g7 e2 f7+ Kh7 f6 Be7 f8B e1R f7 a2 Rh3 a1Q Rd3 h3 Rd4 h2 g8B+ Kg6 Bg7 h1Q Bf6 Qc7 Bfg5 Ra2 Bgd2 Rh7 f8N+ Kg7 Bd5 Re4 Bf7 Rc2 Be8 Bg5 Ng6 Nf7 Nf4 Ne5 N4h3 Qc3+ Ka4 Qcd3 Kb4 Qe7 Ka5 Na6 b8Q Qfe2 Rd8 Qhe1 Rd4 Qf8 Qbd6 Nb8 Ba6 Kg8 Qf6 Rg7 Qf4 Kh8 Qa3 Qd6 c5 Kh7 c6 Qc4 c7 Qed3 Qc3 Qdb4+ Kb6 Qcb3 Rc4 Qg1 Be3 Qd2 Qd4 Qe2 Qc5 Rd5 Bed2 Qge1 Rd4 Q4c4 Ka5 Qed3 Nc3 Qb2 Nb1 Qbb4+
Bn1BQ1b1/3bQ2P/1n2n1rB/1bR1b1P1/2QN2rk/8/4nPBn/1K1BN3 w - - 0 1 illegal: No proof kernel
1KB4q/1R3bQR/2rn1B1N/1r5B/1B1p4/Q1q2B2/2rP1PPb/Qnq3k1 w - - 0 1 legal: proof: e4 c5 a4 g5 h4 b5 hxg5 f5 exf5 a5 b4 Qb6 bxc5 Qd8 Nc3 Ba6 Nd5 Bc8 Nb4 axb4 axb5 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kf7 Ke3 d5 Kf4 h5 Ke5 b3 c4 h4 c6 d4 b6 h3 c5 h2 c7 b2 f6 Kg6 f7 b1R c6 Rb5+ Ke4 e5 b7 Na6 b8B Be6 c8B Nh6 c7 Nf5 Nf3 Nb4 Bb7 Ra2 c8B Nd5 Rb1 Rh6 Ba3 Qc7 Be2 Bd6 f8Q Bf7 Bb4 Qc3 Rb2 Bc7 Qa1 Bd6 Rb3 Rb2 Bc7 Rc2 Bd8 Bc7 Bf6 Bb8 Re1 h1Q Nh2 Bc7 Bd1 Bd6 Re3 Bb8 Ng4 Nd6+ Kf3 e4+ Kg3 Ne7 Kf4 Nd5+ Ke5 Qh5 Rg3 e3 Rh3 e2 Qe7 e1Q+ Be2 Rh7 Nh6 Qc1 Bc6 Qh4 Qea7 Rh8 Q7a3 Rd8 Bf3 Rd7 Rh1 Rc7 B6d7 Rc6 Bdg4 Be8 Ke6 Bf7+ Kd7 Bc7 Ng8 Qh7 Bh5+ Kf5 g6 Qh8 g7 Kf4 Nh6 Bb8 Bd1 Ke4 g8Q Kd3 Qg7 Bc7 Bdf3 Bb8 Ng4 Bc7 Be4+ Ke2 Nh6+ Qf3 Rh4 Kf1 Rh2 Qe3 Bef3 Kg1 Rh3 Nc3 Rb2 Nc4 Rh4 Bh2 Rh3 Rd6+ Kc7 Nb1 Rh4 Qc3 Rh3 Ra5 Kb8 Rb5+ Ka7 Ne5 Ng8 Rdd5 Bc5 Nd3 Bg6 Rb4 Rh7 Rb6 Bgh5 Rc6 Nh6 Ne5 Rb7 Nc4 Bb4 Nd6 Kb8 Rb5
r2Nbb2/3rNB1k/4nRR1/1QKNP2P/5q1p/2Pq2Q1/1nr4n/1N4QN w - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 e5 fxe5 b4 g4 b3 axb3 Ne7 b4 Ng8 b5 Qb6 Qd6 Qc7 Qd1 Qd8 h4 g5 h5 h6 Be3 Ba6 Bf2 Bb7 Bh4 gxh4 g5 Ba6 gxh6 Bc8 Kf2 f5 Ke3 Kf7 Kd4 d5 e4 a5 b4 a4 h7 Kg7 b6 f4 c3 f3 b5 f2 c6 a3 e6 a2 c7 Nf6 b7 Rg8 h8N Kh6 e7 Rg7 e8N Rg8 b6 Qe7 Bc4 f1R Nf7+ Kh7 Ne2 Na6 b8Q Nc5 b7 Bd7 c8N Rf2 Rf1 Rg7 Nd8 Qf7 Ne7 Ng4 Qg3 Nh2 b8Q Qf4 Nc7 Be8 Qb5 Rg2 Rf2 Rf7 Qg1 Ne6+ Kd3 d4 e5 Rg7 Ncd5 Rf7 Bb3 Rg7 Kc4 d3+ Nd4 d2 Kb4 Qh6 Ne2 d1N Rf6 Nb2 Bc4 Qf4 Rg6 Ng5 Kc5 Rf2 Qf3 Rg2 Ng3 Rc2 Nh1 Rf7 Qfg3 Rg7 Na3 Rf7 Rd1 a1Q Rf1 Qd1 Nb1 Qd3 Ba2 Rf6 Rf3 Rd6 Bb3 Rd7 Bc4 Qfe4 Rff6 Qg4 Nb6 Qgf3 Bf7 Qf4 Nd5 Ne6+
1k1rBBK1/4Q1P1/1nn5/3Q2BN/rQqB3p/1P1q4/1B3bP1/bR1R1qn1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 f4 Bb7 h3 Bg7 Nc3 Bc8 Nce2 Bg4 hxg4 Bh6 f5 Bf8 Nf4 gxf4 Kf2 Kd7 Kf3 Kc8 Ke4 c5 Ke5 h5 Ke6 a5 Kf7 e5 d4 h4 d6 c4 d7+ Kc7 b6+ Kb7 g5 a4 g6 e4 b3 f3 d5 e3 g7 f2 d6 a3 Qd5+ Nc6 Bb2 a2 Rb1 a1Q Ne2 c3 Ng3 c2 Bb5 c1N Rd1 f1Q Nh5 Kb8 b7 Qc8 d8B e2 d7 e1B Bb6 Bc5 d8B Bcf2 B6d4 Qd3 Kf8 Ne2 f7 Ra2 f6 Ng1 Ba4 Bc3 Bb5 Na5 Be8 Nc4 Be7 Nb6 Bd8 Qcc4 Be7 Ka7 b8Q+ Ka6 Qbd6 Ka7 Q6c5 Ra4 Qb4 Kb8 Bd8 Rh7 Be7 Nh6 Bd8 Ng4 Kg8 Ne5 f8Q Nc6 f7 Rh6 Qfe7 Rd6 f8B Rd7 Qef7 Rd6 Bg5 Rd8 Rbc1 Qab1 Qfd7 Qf1 Qde7 Qc2 Rb1 Q2d3 Ba3 Ba1 Bac1 Ra8 Bcb2 Ra4
2NqN1k1/1N3pB1/Nb4r1/4K1PB/bQ2r1R1/n3q2n/PQP5/3BqNn1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 d5 Kg3 b5 Kf4 h5 g4 d4 e4 b4 g6 b3 g7 b2 c6 h4 e6 d3 e7 h3 e5 h2 c7 d2 a6 Rh7 g5 Rh8 a7 Bf5 c8N Bg6 Be2 Qd5 Nc3 b1N Qe1 d1Q Na4 Rh6 Qb4 Bd3 Nf3 Qa5 Bb2 Qc5 Re1 h1Q Nh2 Bb5 Nf1 Nd7 Bh5 Rg6 Re4 Nh6 g8Q Na3 Qh8 Ng4 Bd4 Qb6 Nc5 Nf2 Na6 Ba4 Qf6 Rb8 a8B Nh3+ Kf5 Rb7 Rg4 Ra7 Bf3 Rc7 Bc3 Qd5 Re1 Qe3 Bd1 Rc4 Qfb6 Qhg1 Qb2 Qa5 Q6b4 Qd8 Bd4 Qgg3 Re2 Qe1 Bc3 Qd4 Ree4 Qde3 Bd4 Nb6 Bc3 Nd5 Bd4 Ndf4 Bc3 Kd7 e8N Ne2 Ned6 Neg1 Nb7 Ke8 e6 Bc5 Ke5 Kf8 e7+ Kg8 e8N Bd4+ Kf5 Ba7 Bg7 Bb6 Ke5 Rxe4+
b2R4/Bq1p2Pr/1K1N3n/Q5Q1/PR1RR3/2Nn1Prk/2q4r/3bQRq1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 a4 h4 a3 h5 g6 bxa3 Ra5 a4 Ra6 a5 Ra8 g4 Nc6 h6 Rb8 g5 Nf6 Be2 Nb4 Bh5 gxh5 g6 Na6 g7 Kf7 g8R Bg7 hxg7 Ra8 Bb2 Nb8 Ba3 Na6 Bc1 Nb8 Kd2 b5 Kc3 e5 Kb4 e4 c4 e3 a6 e2 a7 e1Q+ Nd2 h4 c6 h5 Kc5 h3 c7 b4 Ne4 b3 Kb6 h4 c5 b2 c6 b1B Be3 h2 Ne2 h3 Re8 Bb7 Rf1 h1R N2c3 Bc2 Rb1 h2 Rb4 Ng8 f6 Kg6 f7 Nh6 f8R Rh7 Nd6 Qc8 Rff4 Kg5 Ree4 Na6 a4 Rg1 Qe2 h1Q f3 Bd1 Qf2 Qd2 Qe1 Qc2 Bd4 Rb8 a8Q Nc5 Qa5 Rg3 Be3 Ra8 Red4 Qb8 c8Q Qg1 c7 Bd5+ Qb7 Nd3 c8R Kh5 Rfe4 Ra6+ Kb5 Qa8 Qbb6 Qb7 Rd8 Ra8 Bf4 Kh4 Be3+ Kh3 Bf2 Qc7 Qc5 Ra6 Be3 Ba8 Qg5 Qc8 Rdc4 Rc6 Ba7 Rc5+ Kb6 Re5+ Red4 Re2 Qgc5 Rh2 Qg5 Nc5 Re4 Nd3+ Rcd4 Qb7+
2b1q2k/1N6/Q2QN3/2rrr3/2B1Kn2/PNR2P2/1rQbPNRp/N2r1n2 w - - 0 1 legal: proof: d4 d5 h4 g5 hxg5 a5 c4 a4 cxd5 a3 bxa3 Nh6 a4 Ng8 a5 Bh3 Na3 Bd7 Nb1 Bc8 g4 e5 dxe5 f6 g6 Na6 g7 Ke7 g5 Nb8 g6 Ke8 Bg5 fxg5 Kd2 b5 Kd3 c5 a3 h5 f3 h4 e6 b4 d6 c4+ Ke4 h3 a6 c3 a7 b3 d7+ Ke7 Rh2 Kf6 e7 c2 Nd2 c1R Qc2 g4 Rg2 b2 Nb3 h2 Nh3 b1R Nf2 Nh6 g8Q g3 g7 Nc6 Qd5 Qe8 d8N Ne5 g8N+ Kg7 Nf6 Nf5 Nb7 Ne3 Nd7 Ng6 Ndc5 Rb2 Qd6 Nf4 Ra2 Rh4 Na1 Kh8 Ncb3 Rb8 a8Q Bh6 Qaa6 Rh5 Qdc6 Rd5 Qd6 Qc6 e8N Ra8 Qad3 Raa5 Ng7 Qe8+ Ne6 Rd1 Q3a6 Rac5 Rg1 Bg5 Bh3 g2 Bf5 Nf1 Bg6 Qd7 Be8 Qf7 Bb5 Qe8 Bc4 Rbb1 Rh1 g1R Rb2 Rg4 Rg1 Rh4 Rg2 Rh5 Qd2 Bh6 Rc2 Rb2 Qd3 Nh3 Rc1 Bd2 Rc3 Nf4 Qc2 Rhe5+
8/1N3N1R/1Pb1Rqk1/1NrQ3n/n3R1Pp/QN2P1b1/1Bn4r/4NnnK w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b4 g5 hxg5 a6 e3 Qd7 b6 Kd8 b5 Ke8 b7 Qd6 b6 Qd8 Bb5+ axb5 Kf2 f5 d4 Kf7 g4 c5 Kg2 h5 e6+ Kg6 d6 c4 d5 b4 d7 c3 e7 c2 e8N b3 d6 b2 Qd3 Ra7 Qa3 f4 Nd2 b1N Nb3 Qf6 d8N Ra5 d7 Rc5 Nf3 Bd6 Ne1 Na6 b8R Nb4 Bb2 c1N Nb7 Nc3 d8N Bd7 Nf7 Na4 Nc7 Nc2 Re8 Ne2 Nb5 Ng1 Re6 Bc6+ Kh2 Rh6 Rd1 Rh7 Rd4 Bb8 Rde4 f3+ N5d6 f2 Kg2 f1N Nb5 Kg7 g6 Bg3 Rh4 Rh6 Kh1 Rh7 Nfd8 Kh6 g7 Kg6 Rh2 Nh6 Nf7 Nf5 g8Q+ Ng7 Qd8 h4 Rd2 Nh5 Rd7 Rh8 Rde7 Rf8 Qd5 Rd8 Re8 Rd7 Rh8 Rc7 Rh7 Rd7 Qc4 Rd2 Qd5 Rh2+
Q1QK3R/3pQRbn/2N1n2b/PQP5/1Q2bB2/P1r2B1k/2br4/1q4bB w - - 0 1 legal: proof: e4 c5 f4 a5 b4 f5 bxa5 c4 exf5 c3 dxc3 Kf7 c4 Ke8 c5 Ra7 Na3 Ra6 Nb1 Ra8 g4 h5 g5 g6 Nd2 Qc7 Ne4 Qb6 Nf2 Qc7 fxg6 Qd8 Ng4 hxg4 f5 Rh6 Bg2 Rh5 Bf1 Rh8 Kf2 b5 Ke3 e5 Ke4 Ke7 Kd5 e4 h4 b4 c4 b3 a3 b2 c6 b1B c5 e3 f6+ Ke8 g7 Kf7 h5 g3 g6+ Ke8 h6 g2 c7 e2 f7+ Ke7 h7 Kf6 Qb3 Kf5 Bf4 Kg4 Qb5 e1B Ne2 g1B Bg2 Be7 f8Q B1h4 Nd4 Bhg5 Nc6 Bc2 Rf1 Bef6 Kd6 Ra6 Qe7 Bb7 c8Q Qb6 Rh3 Bfd4 Bh1 Nf6 g8Q Bh6 Qgb3 Rf8 h8Q Nh7 Q3a4 Bdg7 Qab4 Rf5 Qhd8 Rh5 Rh2 Rh3 Qh8 Rc3 Rf3 Qa7 Kc7 Ba8+ Kd8 Qb7 Rhh3 Rb6 Qhe8 Na6 Rf1 Nc7 Rh5 Bh8 g7 Ra6 g8B B8g7 Bgd5 Qb6 Rf5 Kh3 Rf8 Qb8 Bdf3 Bb7 Ne5 Bbe4 Rh8 Rd6 Qg8 Rd2 Qd5 Qb6 Qda8 Qe6 Nc6 Qb3 Rf2 Qb1 Rg2 Bf6 Rg7 Be5 Rf7 Bf6 Q4c4 Bfg7 Qcb4 Ne6+
4QB1B/6q1/n3P2Q/n3NK2/1r3P2/4pbrn/brQBBP2/RNnB3k w - - 0 1 legal: proof: g4 c5 a4 h5 gxh5 f5 e3 b5 axb5 f4 exf4 Qc7 Na3 Qa5 Nb1 Qd8 d4 e5 b4 e4 b6 Bd6 b5 Nf6 Ra4 Be5 dxe5 Ng8 Rb4 cxb4 Kd2 Kf7 Ke3 Ke6 c4 Kf5 h4 d5 h6 a5 c5 g5 h7 g4 b7 g3 h5 d4+ Ke2 Kg4 b6 g2 c6 a4 c7 a3 h6 b3 Nf3 g1N+ Kd2 d3 Ke3 b2 Qc2 a2 Na3 b1R Qc6 a1N Qc4 d2 Qc2 d1B Bd2 Be6 c8B Ra4 Bc4 Na6 b8B Qd5 b7 Ne7 Bd6 Nb3 b8Q Nc6 Bf8 Rg8 h8Q Nca5 h7 Qd7 Bb7 Rb2 Qe8 Bd5 e6 Rb4 Bd3 Nh3 Ne5+ Kf5 Bb5 Bg4 Rb1 Nc1 Ra1 Ba2 Nb1 Rg5 Bf1 Qg7 Bc6 Rg6 Bcb5 Bh5 Bg2 Rg3+ Bf3 Rg4 Bd1 Rg3+ Nf3 Kg4 Bbe2 Qf7 Qf6 Qg7 h8B Qh7 Bc4 Qg7 Kd4 e3 Ke4 Ng5+ Ke5 Kh3 Bce2 Kg2 Kf5 Nh3 Qh6 Kh1 Ne5 Bf3
2q1n1Q1/2n3b1/1N2prn1/QR4N1/NN3k2/N1K1bBr1/P3QP1P/n1Bb4 w - - 0 1 legal: proof: e4 f5 exf5 a5 c4 h5 g4 d5 cxd5 a4 Na3 g6 b3 Nc6 bxa4 Kf7 a5 Ke8 Rb1 Nb8 Rb4 Ra7 fxg6 Ra6 g5 Ra8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 a6 b5 g7 c5 g6 g3 a7 b4 Kc2 g2 Bd3 b3+ Kd2 b2 Nh3 b1N+ Kc2 g1N Be4 c4 Bf3 c3 Qe2 Bg4 Ng5 Nf6 g8N e6 g7 Na6 Ne7 Rg8 Nc6 Nh3 Nb4 Ne8 Rf1 Rc8 a8N Nac7 Nb6 Nd2 Kd3 c2 Kc3 Nf4 Rd1 Rh8 g8Q Rh3 Rg1 Rg3 Rd1 Ke7 d6+ Kf6 d5 Kf5 d7 Ng6 d6 Nb3 Rd3 Na1 Rd5+ Ne5 Rb5 Bg7 Kb2 Ra8 Kc3 Qc8 d8N Ra4 d7 Ra7 Kd2 Kf4 Nb7 Ng6 d8Q Ra5 Nc5 Ra4 Bb2 c1B+ Kd3 Ra5 Nca4 Be3 Bc1 Bh5 Re5 Rd5+ Kc3 Rd4 Ra5 Rd7+ Re5 Rf7 Qd5 Bg4 Qa5 Rf6 Rd5 Bf5 Rc5 Bc2 Rb5 Bd1
K4Nrb/1N1Pn3/2n3Q1/P1r1P1p1/Rq4k1/1nRQrRnb/2N4R/5RB1 w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 d5 bxa5 f5 gxf5 d4 Bh3 d3 Bg4 hxg4 cxd3 Nf6 d4 Ng8 d5 Qf6 Kf2 Qg5 Ke1 Qd8 Kf2 Kf7 Ke3 g5 Kd4 b5 h4 c6 a4 g3 e4 b4 f6 Kg6 d6 g2 Kc5 b3 d4 b2 h5+ Kh6 d5 Ra7 e6 Bd7 a6 Ra8 f7 Bg7 f8R Qf6 Kb6 c5 Kb7 c4 e5 c3 a7 c2 a5 Qf5 e7 Qd3 e8Q Bg4 d7 Qd2 d8N Bf3 Ne2 g1R Nd4 Bg2 Na3 b1N Rf3 Qe3 d6 Qd2 d7 Bf1 N4e6 Bg2 Nf8 Re1 Rf1 Nc3 Qe2 Nc6 Qd3 Rc8 a8R Qf4 Be3 c1N Nc2 N3e2 Bg1 Nge7 Ra4 Bh3 Ra6 Rc7+ Ka8 Rg8 Nb7 Bh8 Rb6 Qd2 Rb3 Ng3 Rc3 Nb3 Qf7 Qf4 Qff5 Re3 Qfe4 Kg7 h6+ Kf7 h7 Kg7 Qdd5 Kh6 Qdd3 Kh5 Qg6+ Kg4 Nd6 Qb4 Nb7 Bf6 h8R Bg7 Rh7 Bh8 Rh5 Nb8 Rh7 Rc5 Rh6 Nbc6 Rh5 Bg2 Rh2 Bh3
2Q2Q1R/b1q1Q1N1/1rr1P3/p5K1/n2PQ1P1/b1B5/qQbrq1R1/1R1Nk3 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 g4 Bb4 h4 Kd7 hxg5 Ke8 f4 Bf8 Bg2 Nd7 Be4 Ne5 Bf5 exf5 fxe5 Bc5 Rh3 Ba3 Rh1 Bf8 Kf2 Ke7 Ke3 c5 Kf4 h5 b4 a5 e4 c4 d4 h4 b6 c3 g6 c2 d6+ Ke6 g7 h3 b5 h2 d7 Ra6 b7 Ne7 g8Q Rb6 b8R Qc7 d8Q Nd5+ Kg5 f4 Ra4 f3 Ne2 f2 Qf1 Rh6 Qg2 f1R Qh7 f5 Bd2 c1B Ng3 f4 Ra2 f3 Nh5 f2 Nc3 Bc5 Qf8 B1a3 Nd1 Nc3 Rb7 Rc6 b6 Na4 Bc3 Rg1 Qhg7 f1Q Qb2 Qe2 Rb8 Rf6 b7 Ba7 Qg6 Rg2 Ng7+ Kd7 Rf1 h1Q Re1 Rb6 e6+ Kc6 e7 Qhh2 e5 Kd5 e8Q Kc4 Qee7 Rfc6 Qe4 Bf5 e6 Bh7 Ra8 Bg6 b8Q Rf2 Qg2 Bc2 Qbc8 Kd3 Qd5 Qg2 Qe5 Qd5 Rg1 Qb3 Rg2 Qd5 Ra1 Qa2 Rb1 Qd2+ Ne3 Ke2 Qe4 Qd3 Nd1+ Kf1 Qb7 Qf3 Rd8 Rd2 Qc8 Qf2 Qff6 Qf3 Rh8 Qf2 Qh6 Qe2 Qhf6+ Ke1 Qff7 Qc4 Qff8 Qa2
5rbQ/1Nbb2K1/5R1B/2R4R/q1qQr2Q/P1QPN1n1/bPQp4/k3b3 w - - 0 1 illegal: No proof kernel
r7/QBR2n1R/2P1N2r/2q1q2p/Bn1q2PB/1qk1B3/2qb1P1B/1R3Q1K w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 exf5 g4 dxc5 Ba6 Qf3 Bb7 Qd1 Bc8 Nd2 g3 Ndf3 Bg7 h3 Qc7 Nh2 gxh2 g3 Bb7 g4 Bf3 g5 Bg4 hxg4 Bf8 Qd4 Qc8 Qd1 Qd8 c4 Kf7 b4 a5 g6+ Kf6 c6 Ke5 g7 d5 f6 d4 b6 h6 c7 a4 c8B a3 f7 a2 c5 e6 b7 d3 c6 Kd4 b5 e5 b6 e4 Be3+ Kc3 Nh3 Qf6 Rb1 a1Q Nf4 Qa2 Ne6 Na6 b8B Qb3 b7 Bb4 f8B Qd4 Be7 d2+ Ke2 Ba5 Bh4 Nb4 Bc7 Rh7 b8Q Qc5 Qa7 h5 Bb7 Nh6 g8R Rh8 Rg7 Nf7 Rh7 Qd4 Rg1 h1Q Bh2 Qg2 Rh1 Qg3 Rg1 Qge5 Rg3 Qg5 Rf3 Qgc5 Rf5 Qc2 Rd5 Qb3 Rd7 Qc2 Rc7 Qb3 Bef4 e3 Kf3 e2 Kg2 e1Q Kh1 Qee5 Bb5 Qc2 Qe2 d1Q+ Qf1 Qb3 Ba4 Qdc2 Rg7 Rh7 Be3 Rh6 Rh7 Nd3 Qh3 Kc4 Bf6 Bd2 Bh4 Kc3 Qf1 Nb4
4r1R1/5P1B/Knb2rrk/p5Nn/2Q1r2r/q1q3P1/2RPQ1R1/1NR1N2R w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bb7 b3 Bg7 f5 Bh6 Bb2 Ba6 Be5 Bc8 Bf4 gxf4 Qe2 Bg5 Qd1 Bh4+ Ke2 Bg3 hxg3 Nh6 Ke1 Ng8 b6 Kf8 Ke2 h5 Kd3 e5 Kc4 a5 Kb5 c5 f7 Kg7 f8R f3 g5 e4 b4 f2 b7 e3 d6 h4 g6 e2 f6+ Kh6 g7 e1R d7 h3 Qe2 h2 Nf3 Qc7 d8N c4 Ne6 c3 Neg5 Nd7 b8R Bb7 Rbc8 c2 f7 c1Q Rfe8 Qd8 Rc2 Ngf6 g8R Nh5 Qc4 Qe7 Bd3 f1R Bh7 Qf8 Re2 Re8 Rg2 R1e4 Ne1 Bc6+ Ka6 Nb6 b5 Rf6 Qe2 Qfa3 Qc4 Nd5 b6 Qcb2 b7 Nb6 b8Q Qbc3 Qe5 Rg6 Rf1 h1R Qe7 Rhh4 Rh1 Rd4 Qee2 Rde4 Rc1 R8e6 Ra2 Rd6 Rac2 Rdf6 Rg7 Rc8 Rg8 Rce8
2bBQK1R/2pQQr2/4P3/1R6/1bP1P1q1/5b2/R1nb1bk1/1Rrq1NNR w - - 0 1 legal: proof: d4 a5 f4 b5 a4 g5 fxg5 e5 axb5 Ra7 dxe5 Ra6 b4 Ra8 g4 h5 g6 a4 g5 Nc6 Bh3 Na5 Bg4 hxg4 bxa5 Rh7 Bb2 Rh6 Bc1 Rh8 Kf2 Ke7 Ke3 Ke6 Ke4 f5+ Kd4 d5 h4 f4 c4 Kf5 b6 f3 g7 f2 e6 f1Q a6 g3 h5 Kg4 Ke5 d4 e4+ Qf3 b7 d3 b8R d2 g6 a3 a7 g2 h6 Kg3 h7 a2 Rb5 Nf6 g8Q Qg4 g7 Bb4 Qf7 Nd5 g8Q Ne3 Qe7 Nc2 Qge8 Rf8 h8R Rf7 Bb2 Rb8 a8R Rb7 Rb8 Ra7 Bd4 Ra3 Be3 Rc3 Bg5 Kf2 Qc1 d1B Qd2+ Be2 Qdd7 Bf3 Nd2 Kg3 Rb1 a1B Ra8 Bb2 Ra6 Bc1 Nf1+ Kf2 Ra2 Bd2 Qc6 Qd3 Qd5 Qe2 Qdd7 Qd1 Bf6 Na1 Bg5 Rc1 Bf6 Nc2 Bg5 Rh7 Kf6 Rf7+ Kg6 Rf8 Kg7 Rf5 Ne2 g1B Kg8 Kg2 Kg7 Rc5 Kf8 Bf2 Ng1 Rd5 Qc5 Re5 Bd8 Rg5 Qcd6 Rg7 Q6e7 Rf7+
5Q2/Nn4QN/3NRq2/b4RPn/1q1p2nP/2rR3b/1q2RPnk/BK3R2 w - - 0 1 illegal: No possible last move, all moves rejected
n1N1R1b1/3KNk2/5PR1/3q1P1Q/2n4q/BPNp1Q2/q2RR1rn/2Rr2n1 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 f5 g4 e6 gxf5 Qf6 e4 Ke7 f4 Qg6 Be2 Qe8 Bf3 Qd8 Bg4 hxg4 e5 Ke8 Kf2 Be7 Ke1 Bf6 exf6 Rh7 Nd2 Rh5 Nb1 Rh8 Kf2 a5 Kg3 d5 h4 g5 c4 d4 b6 a4 b7 a3 f7+ Kf8 b3 d3 h5 a2 c6 e5 c7 e4 c5 e3 c6 e2 h6 e1N h7 Nc2 Nf3 Qd4 Nh4 Na3 Rg1 Nd7 b8R Nh6 Nc3 Rg8 h8R Nc4 Ng6+ Kg7 f8R Ndb6 Qf3 Be6 c8Q Qd5 Re8 Kf7 f6 Ra5 f5 Na8 Rb1 a1Q c7 Qa2 Ne7 Rg7 Bb2 Rg6 Rbc1 Rc5 Kh2 g3+ Kh3 g2 Ba3 g4+ Kg3 Rg8 Kf4 g3 Rb4 Ng4 Rh2 Rc6 Rge1 g1Q Rd2 g2 Ree2 Qh1 Qd7 g1N c8N Nf2 Qh5+ Rg6 Qb7 Ng4 Ra4 Nh2 Rb4 Qdg2 Ra4 Ra6 Qbf3 Qh3 Ke4 Bd5+ Kd4 Qh4+ Kc5 Be6 Rb4 Ra5+ Kc6 Re5 Rg2 Re1 Rge2 Bd5+ Kd7 Rd1 Qh6 Rg3 Rb8 Rg7 Rg8 Rg4 Rg6 Rg2 Qhh5 Kf8 Rb6 Bg8 Rbe6 Kf7 Ned5 Bh7 Re8 Bg8 Nde7 Rg3 Qf4 Qf3 Qfg4 Rg2 Qg3 Qfe4 Qgf3 Qd5+
2r2B2/5r2/P1RQQ3/Rq1Pp1Q1/n2P2Q1/1Q1nn1q1/2nKbRN1/r2B2k1 w - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 d5 exf5 d4 f6 d3 g3 Ra7 cxd3 Bf5 d4 Bc8 d5 Ra8 f4 h6 f5 e6 Nc3 Bd6 Ne4 Bf4 Ng5 hxg5 gxf4 g4 d4 Kf7 a4 c5 h4 b5 h5 g5 a6 c4 a5 g3 a7 g2 h6 e5 a6 b4 h7 g4 Ke2 b3 Nh3 g1Q Qd3 b2 Bd2 b1N Ra5 g3 Bb4 c3 Bf8 c2 Qb3 Nc3+ Kd2 c1N Be2 g2 Bd1 Nh6 Rh2 Rg8 h8Q Ng4 Qh6 Nc6 Qg5 Qd7 Rh1 Rb8 a8Q Nb4 Qc6 Rg7 Qd6 Qb5 Qb6 Kg8 f7+ Kh7 f6 Ne3 f5 Nbc2 Qe6 Nd3 Nf4+ Qh2 Qg4 g1R+ Ng2 Re1 Rf1 Kh6 Rf2 Ra8 Be7 Qh3 f8Q Na4 Qd8 Qg3 Bf8 Bd7 Qde7 Rc8 Qd8 Be8 Qdd6 Bg6 f7 Rg1 f6 Bh5 Be7 Re1 f8R Rf7 Rd8 Rg1 Rd7 Rh1 Rc7 Rf1 Rc6 Rg1 Qe4 Be2 Bf8+ Kh5 Qf4 Nf5 Qe3 Kg4 Qg5+ Kh3 Qg4+ Kh2 Qde7 Rg7 f7 Nfe3 Qeg5 Re1 Bc5 Rh1 f8Q Rf7 Qfd8 Re1 Bf8 Kg1 Qdd6 Bf3 Be2 Ra1 Bd1 Be2
2N5/3PQB1k/2Q5/N1RPqb1p/KB2rNn1/1Br3P1/r2bqq1q/N5N1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 b4 Nc6 g4 Kd7 f4 Ke8 f5 Nd4 Ra3 Ne2 Rf3 Ng3 Rf4 gxf4 hxg3 Be6 Nf3 Bd7 Ng1 Bc8 d4 Kf7 Kd2 a5 Kc2 c5 Kb3 h5 b6 e5 d6 f3 d7 c4+ Ka4 c3 b5 e4 d5 c2 g5 f2 b7 e3 b8N e2 b6 e1R b7 Bd6 g6+ Kf8 f7 Kg7 f8N Be5 Nd2 Ne7 Nc6 Qb6 b8N Re4+ Bc4 f1Q Nb3 Ba6 Na1 Qe2 Na7 Qbf2 Nbc6 Bf4 Ba3 c1Q Qc2 Ng8 Bb4 Bd2 Bb3 Qb2 Nc8 Bd3 f6+ Kh6 f7 Nf6 g7 Ng4 Ne6 Kh7 f8Q Qe5 Ka3 a4 Qe7 Rf8 Qcc5 Rf3 Nf4 Bb1 Na5 Rc3 Qc6 Qh2 Ngh3 Qd4 Rc1 Qdf2 Ng1 Bd3 Ka2 a3 g8B+ Kh8 Bf7 Kh7 Rc2 Ra6 Kb1 a2+ Kb2 Ra8 Ka3 Ra6 Rc1 Ra8 Nc2 Ra7 Ka4 a1Q+ Ba2 Qb2 Na1 Bb1 Bc4 Ra6 Ba3 Qb8 Bb4 Qe5 Ba2 Ree3 Bb3 Bf5 Rc2 Re4 Rc1 Rd3 Rc4 Rc3 Rc5 Qee1 Kb5 Qg7 Nc4 Ra2 Na5 Qee3 Nb7 Qe5 Na5 Rb2 Ka4 Qee2 Ka3 Rbc2 Ka4 Ra2+
KB2BRQn/4Pqrr/n2R4/1rp4P/1PQR4/4r2k/1bB3r1/3rBB1N w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 g4 b4 g3 fxg3 Ba6 g4 Bc8 g5 Bb7 g4 h6 g6 Ba6 Nd2 Bb7 Ndf3 Bd5 Ng5 Bb3 cxb3 Qf6 Nh7 Qd8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Bg2 Ke8 Bh3 Nh6 Bf1 Ng8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 c5 h4 a5 e6 a4 h5 d6 b6 g3 b5 Kg4 b7 f5 b4 a3 e7 f4 e8B a2 e4+ f3 b6 g2 e5 Kg3 g7 f2 e6 Be7 g6 Bf6 e7 Nh6 g8B Rh7 g7 Bb2 Bd2 Ra3 Nh3 g1R Qe2 Na6 Kc6 d5 b8R d4 Kb7 d3 Rd1 a1R Bb3 Rg2 Ka8 Qd5+ b7 Nf7 Bc2 Nh8 Be1 d2 Qc4 Re3 g8Q+ Rg7 Rd8 Qf7 Rd6 Ra5 b8B Rb5 Ng5 Bc3 Ne4+ Kg4 Rg1 Kh3 Ng3 Bb2 Nh1 Rh7 Ra1 d1R Ra3 Rd4 Rd3 Rg4 R3d4 Rg5 Be2 f1R Bed3 Rff3 Rf1 Rgg7 Rf2 Rfg3 Bf1 Rd3 Rf3 Rd1 Rf2 Re3 Rff6 Qe6 Rf8 Qf7
1bB1R2N/Q1P5/1N1b2KP/n1BB4/Br1rb1bQ/B4p1P/Qrn4k/5b2 w - - 0 1 illegal: No possible last move, all moves rejected
n2B3B/P1p1QK1n/6q1/QBPRrkrQ/2Q4r/n4P1N/1N1Q4/1qn4r w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f5 bxa5 Kf7 e4 Na6 a4 Be7 e6+ Kf8 e5 Nb8 Ra3 Bc5 Re3 Ke8 Re4 Bf8 g3 fxe4 Kd2 g5 Ke2 b6 Ke1 g4 Bh6 Ba6 Bc1 Bh6 h3 Bf4 gxf4 g3 Nf3 Be2 Ng1 Bg4 hxg4 Kf8 Rh3 Ke7 Rh1 Ke8 Kd2 Ke7 Ke3 h5 Kd4 d5 c4 b5 f5 b4 f6+ Ke8 f3 e3 c5 g2 f7+ Ke7 f8B+ Ke8 a6 b3 g5 h4 a7 b2 e7 Kd7 e8Q+ Kc8 a5 h3 g6 e2 e6 e1R a6 h2 g7 Re5 e7 Nd7 Nh3 g1N Na3 b1N Nc4 Ngf6 g8Q Nb6 Bb2 Nh7 Qd2 Na3 Qh5 Kd7 Qgf7 Rb8 a8Q Qe8 Ba1 Rg8 Nb2 Rgg5 Qg8 Qf7 Bb5+ Ke6 e8Q+ Kf5 Be7 Qg6 Bd8 Rb7 Qa7 Na8 Qe7 Rb8 Qb6 Rb7 a7 Ne2+ Kd3 d4 Qba5 Rb6 Rd1 h1R Qc4 Ra6 Qac3 Ra4 Qa5 Nc2 Qcb4 Nc1+ Kc4 Re3 Kd5 d3 Qbc3 Rh4 Qc4 Re6 Na4 Na3 Bh8 Qg8 Nb2 Re5+ Kc6 Qg6+ Kd7 Qa6 Ke8 Qh6 Qf2 d2 Kf7 Qd6 Re1 d1Q Qfd2 Qb3 Re3 Qa2 Rd3 Qb1 Rd5 Qg6+
7n/rb2P3/kN1q1BrK/nR1PNP2/4Q3/N2Qp1b1/RR1Rr2p/b1R5 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 e4 e5 d4 f5 Bd3 Ba3 dxe5 Bf8 e6 Ba3 e5 Bf8 Be4 fxe4 Kd2 a5 Ke3 c5 Kf4 h5 g4 c4 b4 e3 b6 a4 b5 c3 b7 a3 g6 h4 g5 a2 g7 h3 g6 c2 e7 Kd7 Kg5 Kc7 f4 Kb6 e6 h2 f5 Ra5 Nf3 Rh3 Ne5 Qc7 e8Q Ra4 Qd3 Qd7 Bb2 c1B Na3 Bd2 Rhc1 Na6 b8N Nh6 g8R Nc5 g7 Qd6 Nbd7+ Kb7 b6 Bc3 Rh8 Ra7 g8R Rg3+ Kh5 Rg1 Rg2 Nb3 Rd2 Na5 Rg8 Bd4 Rgg2 Nf7 Rab1 a1R Bc3 Nc4 Rb5 Ka6 b7 Na5 b8R Ra2 Nb6 Nh8 Kg5 Be7+ Kh6 Bh4 Ra8 Be1 Rdb2 Bb7 Rgd2 Bg3 Qe7 Ng6 Qh4 Rg2 e7 Re2 Qhe4 Ra1 Rcc2 Rg1 Rc1 Nh8+ Ng6 Bc5 Bf6 Bd4 Ne5 Rgg2 Ra2 Bc3 Rc8 Ba1 R8c2 Be1 Rcb2 Rg7 Qg4 Bg3 Qge4 Rg6+
1k1b2K1/RP1pp1nR/1qPn4/8/3n2bB/1Nr1RR1P/R3QQQ1/Nrb5 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 f4 g6 g5 Qc7 Bh3 Qb6 fxg6 Qd8 Bg4 hxg4 f5 Bb7 Nd2 Ba6 Nb1 Bc8 Kf2 a5 Kg3 a4 Kf4 g3 c4 a3 b4 a2 c6 g2 b6 Rh6 c5 Ra5 g7 Na6 c7 Bb7 c8R Ba8 f6 Ra3 Kf5 Rb3 b7 Rbh3 b8R R6h5 Kg6 Re3 c6 Re1 b5 Bb7 b6 Re3 Ra8 Rh8 Nd2 Re2 Ra7 Re3 Nb3 Rg3 Nf3 g1B Ne1 Nh6 g8R Rc3 Qe2 Nf5 Nc2 Bf2 h3 Bd4 Rg7 Nc5 Re1 Ne4 Rh7 Ba6 b7 Ned6 Bf4 Ng7 Bg3 Rg8 Bh4 Bb6 Kh6 Bd3 g6 Bf5 Rca8 Bg4 Rab1 Nc8 Nca1 Nd6 Rbd1 Bc7 Rd3 Ba5 Rf3 Bc7 Nc2 a1N Ra2 Ba5 Ra7 Qb6 f7+ Kd8 Qd2 Kc7 Ree3 Ne6+ g7 Kb8 Qd3 Rc5 Qe2 Rc3 Nc1 Nb3 Na1 Nbd4 Ncb3 Qb5 Kg6 Bd8 Kh6 Qb6 Kg6 Rh8 g8Q Bh6 f8Q Ng7 Qf4 Bg5 Qg3 Bh6 Qgf2 Bf4 Qd5 Rf8 Qg5 Rf5 Kh6 Rb5 Kg6 N6f5 Kf7 Nd6+ Kg8 Rb4 Nc5 Rb1 Ncb3 Bf5 Qgg2 Bg4 Re5 Bd2 Ree3 Bc1
kB4QK/pr1RP2n/3NPP1p/1R2n2r/Q7/b2q2N1/2n2RR1/Rb1r3Q w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 e4 e5 d4 f5 Bd3 Ba3 dxe5 Bf8 e6 Ba3 e5 Bf8 Be4 fxe4 Kd2 c5 Ke3 h6 Kf4 e3 Kf5 e2 Kg6 e1N f4 c4 g4 c3 b4 c2 d6 Na6 e7 Kd7 b6 Kc6 b7 Nf3 b8Q Qd7 e6 Nd4 b5+ Kc5 b6 Kc6 f5 Nb4 b7 Nd3 Nc3 Nf3 Rh2 Nb4 Rf2 Qc7 d7 Qf4 d8R Nd4 Rd7 Kb6 Nge2 Nf3 Nb5 Bg7 Nd6 Qe3 Qh1 Bb2 Ng3 Qd3 Bf4 Ne5+ Kg7 c1R g6 Nc2 g5 Ba3 Qc7+ Ka6 b8R Rd1 Rb5 Rb8 Qc4 Nf6 Qd4 Nh7 f6 Rf8 Qb4 Rf7+ Kh8 Rb7 g7 Rf8+ g8R Rd8 Qd5 Rh1 g6 Rh2 g7 Rh5 Rc7 Bd7 Qh1 Be8 Rd7 Bg6 Re8 Be4 g8Q Bd5 Rf8 Ba2 Rf7 Bb1 Rg7 Rc8 Ngf5 Rc4 Rgg2 Re4 Qc4 Re1 Ng3 Rd1 Qgc8 Ng4 Qg8 Rb6 Ndf5 Rb8 Bc7 Ne5 Qd4 Rb6 Qa4+ Kb7 Bb8+ Ka8 Nd6 Rb7
1Q1r2r1/n3BBbk/3qp2P/3Qb1pB/1B1PqB2/2RnR2P/Q2N4/K1r5 w - - 0 1 legal: proof: g4 b5 a4 f5 axb5 h5 gxh5 d5 Nc3 c5 Ne4 c4 d3 d4 dxc4 d3 c5 fxe4 Kd2 Be6 Ke3 d2 Nf3 Bc4 Ng1 Bd3 exd3 Qd6 Ke2 Qd8 c4 Kf7 b4 a5 f4 g5 h3 Kg7 b6 a4 b7 a3 f5 a2 b5 e3 f6+ Kh6 c6 Ra4 c5 Nd7 b8Q Ra6 c7 Bg7 c8B Nb6 f7 Ra4 f8B Nd7 c6 Rh4 c7 Rg4 b6 Rb4 b7 Rb3 Nf3 Nc5 Be6 Qc8 Bf7 e6 Be7 Bc3 Ba3 Qf8 c8Q Bb2 Rc1 a1B Bb4 Qd8 Rc3 Kh7 h6 Qd6 Bg2 Ra3 Re1 Ra2 Qb1 d1R Qd7 Qb6 Nd2 Qd6 Rb3 Bd4 Bf3 Bg7 Rc3 Rc2 B3h5 Bb2 Qa2 Ba1 Kf3 e2 Ke3 Bb2 Qc6 Be5 Qcd5 Bg7 Bf6 Ne7 Kd4 Nc8 Kc4 Na7 Be7 Na6 Kb3 Rg8 Qa3 Nc5+ Ka2 Nb3 Qaa5 Nc1+ Kb1 Ba1 Qaa2 Bb2 Rc6 Bbd4 Rc3 Bdf6 Ka1 Be5 Rf1 e1Q Rf3 Qe4 Re3 Rf1 d4 Nd3+ Qb1 Rf3 Qba2 Rd8 Qa8 Rf6 b8B Rg6 Bc7 Bf8 Qc8 Rg8 Qb8 Bfg7 Qb2 Bf4 Bc5 Qc6 Bb4 Bh2 Bg3 Qb6 Qba2 Qd6 Bh4 Bf4 Bg3 Bfe5 Bf4 Rc1+
2q1Bn2/4k3/1B1N2r1/1N1p2P1/Pb1B1Pp1/2Nn1R2/rb1bNK1b/2QQN3 w - - 0 1 illegal: No proof kernel
QK5N/n2B1B2/1p1Qq3/N1rbq1rN/1b1qP1PB/BPp2B1k/2r5/R7 w - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 d5 cxd5 g4 a4 g3 a5 Nd7 a6 Ndf6 hxg3 Nd7 g4 Nb8 g5 Ke7 Rh5 Kd7 Rh1 Ke8 b3 b6 Qc2 Nd7 Qd1 Nc5 Rh3 Nb7 axb7 a5 Ra2 a4 Rh1 a3 Rb2 axb2 Kf2 Kd7 Kf3 h5 Kf4 c5 b8Q f5 d4 h4 e4 h3 g4 h2 g6 c4 d6 Ke6 g7 c3 d5+ Kf7 d7 Kg6 d6 Ne7 g8B Bg7 e6 Bd4 Bg2 Ra5 Ne2 Rh5 Na3 b1R Qa8 Bc5 Ke5 Rb2 Nc4 Rc2 Ng3 Bb7 Ba3 Nc8 e7 Kg5 e8B Na7 Bgf7 Kh4 Qd5 Rg5 Nh5 Ra6 Ra1 h1Q Ng7 Ra4 Nh5 Qe1 Na5 Qc8 d8N Qf2 d7 Rc4 Be6 Bb4 Nf7 Rc5 Kd6 f4 Nh8 f3 B8f7 Qd4 Bh1 f2 Bf3 Kh3 d8B Rg6 Bh4 Rg5 Be8 Bc6 B6f7 Qe6+ Kc7 Qde5+ Qd6 f1Q Bd7 Qg1 Kb8 Qgd4 Bde8 Bb7 Bd7 Bd5
2BR1R2/r4BKr/1NpR3P/1QR2b1Q/3nq3/B1nn2P1/p1P1nk2/4R1r1 w - - 0 1 legal: proof: d4 a5 f4 b5 a4 g5 axb5 e5 dxe5 a4 fxg5 Nf6 b4 Ng8 g3 h5 Na3 h4 Nc4 h3 Ne3 Be7 Ng2 hxg2 Bb2 Bc5 Ba3 Bb6 Bc1 Ba5 bxa5 Kf8 Kd2 Ke7 Ke1 Ke8 Kf2 Ke7 Ke3 Ke6 Kf4 f5 e4 d5 h4 c6 h5 a3 a6 a2 h6 d4 a7 d3 b6 d2 b7 Nf6 g6 Rf8 Kg5 f4 g7 f3 Kg6 f2 g8B+ Rf7 Ne2 g1N Bh3+ Ng4 Nf4+ Kd7 e6+ Kd6 e7 Ke5 e8R+ Kd4 e5 Ke3 e6 f1R e7 Na6 b8Q Qc7 Ba3 Qe5 Rd8 Qd4 e8R+ Kf2 Re1 Nb4 Qb5 Nd3 Nd5 Ne2 Nb6 Ne3 Rd6 Rd7 Bf7 Qe4+ Kg7 Rg1 Bg4 Rb8 a8R Ra7 Rh5 Bf5 Rc1 Rh8 Rad8 Nd5 Bh3 N5f4 Rg5 Nd4 Qh5 d1N Rf8 N1b2 Rcd1 Na4 Bg4 Nfe2 Bh3 Bg6 Rc5 Nac3 Bd7 Bf5 Bc8 Nef4 Re3 Nfe2 Re1 Qf4 Ree8 Qe4 Red8 Rh7+
6bB/nNp1pnP1/P2rB1Q1/5rB1/2R2P2/4r2Q/q2QB1R1/knKr3B w - - 0 1 illegal: No possible last move, all moves rejected
1q5R/rpqP4/B3PNR1/qP1K3b/1qr1Qn2/pQ2RRN1/2b3k1/N3R3 w - - 0 1 illegal: No proof kernel
1NBN1B2/P2K2B1/3P1p2/4bnQ1/1k2b1P1/4p3/1B1bBrNR/1Qrb1n1b w - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 f5 exf5 e6 f4 d4 f6 d3 f7+ Kd7 f5 Be7 f8B Bc5 cxd3 Ba3 d4 Bd6 d5 Ke8 g4 Be7 h4 Ba3 f6 Kd7 f7 Bb4 a4 Qg5 hxg5 Bc5 Ra3 Bb4 Rf3 Bd6 Rf6 gxf6 Kf2 b5 Kf3 h5 Ke4 c5 d4 b4 g6 b3 a6 c4 g7 h4 a5 c3 a7 e5 Kf5 c2 a6 h3 Rh2 e4 Be2 e3 Na3 b2 Nb5 b1B Nf3 Be5 d6 Kc6+ d7 Bb7 Ke6 Nh6 g8Q Nf5 Nc7 Ng3 Ne1 Nf1 Bb2 c1B Bg7 Be4 f8B Bd2 d8N+ Kb6 d5 Ka5 d6 Kb4 Qc1 Nc6 Qb1 Ne7 Ng2 Rc8 a8B Nf5 a7 Bf3 Kd7 Bbe4 Bb7 Rh6 Nce6 Rc1 Nc7 Rh8 Bc8 Rh5 Bc4 Bd1 Be2 Rg5 Rh1 h2 Na6+ Ka4 Nb8 Kb4 Qh8 Rh5 Qh6 Rh3 Qf4 Rf3 Qg5 N1g3 Rf1 h1B Rf2 Nf1 Nf4 Bec3 Rh2 Be5 Ng2 Rf2
1bb5/2n1Q2B/2b1n2r/RP1PRR1K/Pp1Q4/4p2R/1B2RB2/nkN2rn1 w - - 0 1 legal: proof: e4 d5 b4 b5 h4 f5 exf5 a5 bxa5 g5 hxg5 b4 c4 Qd7 Na3 Qb5 cxb5 Bb7 Nc4 dxc4 Bd3 Ba6 Bf1 Bc8 Ke2 Kf7 Kf3 c5 Kg4 e5 f4 e4 d4 h6 a4 c3 a6 c4 g6+ Kf6 g7 c2 d5 c3 a7 Na6 Ra2 Bd6 Bb2 c1N Bd3 Nc7 Rh3 Ne2 Kh5 Ne6 g4 Bb8 Qe1 Bd7 Qa1 Bc6 g5+ Ke7 g6 Kd6 f6 Kc5 f5 Kd4 f7 e3 f8B Rh7 Be7 Nf6+ Kh4 h5 g8R Rh8 g7 Ne8 f6 Rh6 f7 N8c7 Bh7 Kc4 f8R Kb3 Rf1 c2 Re8 c1N Rf5 Kc2 g8Q Nb3 Qf8 N2f4 Rf3 Nh3 Ne2 Ng1 Qf7 Nbd4 Rh3 Nb3 Qe1 Na1 Nc1 Kb1 Qc3 Nc5 Kg5 h4 Qd4 N5e6+ Kg4 Rg6+ Kh5 Rf6 Rh1 h3 Bd8 Rg6 Bh4 h2 Bf2 Rh6+ Kg4 Ng5 Ree5 Nge6 Qe7 Nf3 Rg1 h1B Rg3 Ng1 Rh3 Be4 Bc3 Bd3 Re2 Be4 Bb2 Bd3 Rff3 Bg6 Rff5 Bge8 Qd1 Bed7 Qd4 Rg6+ Kh4 Bc8 Kh5 Rh6+ Kg4 B8d7 Bh4 Ne8 Be1 Bd6 Rf4+ Rg6+ Kh4 Rc8 a8R Bb8 Ra7 N8c7 Ra5 Rf8 Kh5 Bc8 Rf1 Rf4 Bh4 Re4 Rf6 Rf4 Rff5 Rf1 Bf2 Rh6+
2QR1b1N/1pnKN3/1B1n1PN1/nP4qr/3q1n2/k7/P2Q1p2/R2RR1Rn w - - 0 1 legal: proof: g4 h5 gxh5 d5 c4 Nf6 cxd5 Ng8 e4 a5 b4 a4 Bc4 Ra7 Bb3 axb3 Qg4 Ra5 Qd1 Ra8 f3 f5 Kf2 e5 Kf1 f4 Ke1 Bf5 exf5 e4 Qe2 e3 Qd1 Ra6 Nh3 Re6 Ng1 Re4 fxe4 Ke7 Nc3 Kf7 Nb1 Ke8 Ke2 Ke7 Kd3 Kd6 Kc4 c5 h4 g5 d4 b2 h6 g4 h7 e2 f6 e1N h5 f3 e5+ Kc7 b5 Kb6 h6 Ka5 e6 f2 e7 g3 e8R g2 d6 Qc7 Kd5 Kb4 Ke6 c4 d7 c3 d5 c2 d6 Nd3 Nf3 g1Q Be3 c1N Nh4 Qb6 Nc3 b1N Nd5+ Ka3 d8Q Qg6 Qc8 Na6 Rg1 Qg5 Ng6 Qd8 d7 Ne7 Ba7 Nd2 Bb6 Ndb3 Qdc2 Na5 Rd1 Qg2 Qd2 Ne2 Kd6 Ng3 Ke6 Qc7 d8R Qc5 Kd7 Nef5 Ree1 Nd6 Nde7 Qg5 Ng8 Nc7 N8e7 Rg8 h8R Nf4 Rh7 Rg7 Rh8 Rf7 Rh7 Qe5 Rh8 Qd4 h7 Qgd5 Rg8 Qh5 h8N Nh1 Nh4 Rh7 Rgg1 Qg5 N4g6 Rh5
1b3nQb/3q1N2/4p2N/RKPP1P1N/1p2QN1n/1k3n1R/pN6/B1rrR3 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 c4 a4 c3 bxc3 Qc7 c4 Qb6 c5 Qd8 c4 b5 c6 d5 c5 b4 Bd3 Ba6 Bc4 Bb5 axb5 dxc4 Ke2 Kf7 f4 g5 h4 a5 d4 e6 d5 g4 h6 a4 h7 a3 b6 g3 b7 a2 f6 c3 Kd3 c2 Kc4 g2 c7 Bh6 c8R Qa5 h5 Qc7 f5 Ra4 Qf3 Be3 h6 Qh2 Qe4 Na6 b8Q Qc7 Nc3 Bd4 Rh3 Ne7 Nge2 g1N Nd1 Qd7 Ng3 Ra3 Bb2 c1B Nh5 Ng6 Qg3 Rb3 Ra8 Nb8 Ra5 Nh4 Rb1 Bd2 Ba1 Ngf3 Nb2 Rd3 Re1 Bf4 Qg4 Rd1 Qg1 Qa7 Kb5 Nd7 Qg2 Nf8 Qg8+ Ke8 f7+ Ke7 Reh1 Bb8 Re1 Nd7 f8N Bde5 Nf4 Kf6 N8g6 Nf8 Nh5+ Kg5 Ng3 Kf6 Nf4 Qc7 Qg4 Rg8 h8N Rg7 h7 Qd7+ Kc4 Rg5 Nf7 Rh5 Qg8 Rg5 Nge2 Rg1 h8N Rh1 Nh6 Bd4 Qb1 Ke5 Nh5 Rf1 Nd3+ Ke4 N8f7 Bh8 Nb2+ Ke3 Nef4+ Kd2 Qe4 Rg1 Qd4+ Kc2 Qe5 Qc7 Kb5 Kb3 Qe4 Rc1 Re2 Rgd1 Re1 Qd7+
6kb/q1KB2P1/Q1P2Qp1/Rb1N1Q2/P3pr1N/2p1Qr2/1B1Nb1Q1/2n2n2 w - - 0 1 illegal: No proof kernel
b4K2/QqQn3N/Q5q1/NpRPnkb1/PB4pQ/1B5P/3p1r2/r2QB3 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 gxh5 a4 c4 a3 bxa3 Ra6 a4 Ra7 a5 Ra8 d4 d5 cxd5 c6 d6 c5 a4 Kd7 d5 Ke8 Ra3 Kd7 Rd3 Ke8 Rd4 cxd4 Kd2 Kd7 Kd3 b5 Ke4 g5 Ke5 g4 f4 d3 f6 e6 h6 Bb7 f7 Qe7 h3 Na6 f5 Nb4 f6 Ra6 h7 Ra7 a6 Bc8 Nd2 Nc2 Nc4 Rc7 a7 Bg7 f8B Qf7 a8Q Bh6 Qa6 Ne3 Bd2 Qg6 f7 Nf6 Na5 Bb7 Nf3 Rc1 Be1 d2 Ng5 Ba8 Bc4 Ra1 Bb3 Rg8 h8Q Nc4+ Kd4 e5+ Kc5 e4 Nh7 Kd8 d7 Ne5 Kd6 e3 Ke6 e2 Bb4 Bg5 f8Q+ Kc7 Qe7 Rf8 Qhg7 Rf7 Qc5+ Kd8 Qca7 Rf8 Qh6 Rf7 Qh4 Rf8 Bf2 e1Q Bg3 Qe3 Be1 Qc3 Rf1 Qc7 Rf3 Qb8 Rc3 Qb7 Rc5 Qe8+ Kf5 Ke7 d8Q+ Kf7 Qdb8 Nfd7 Qc7 Kg7+ Nf6 Qh5 Ke6 Kg6 Nh7 Rf6+ Ke7 Qh6 Nc6 Rf2+ Ke8 Kf5 Na5 Nf6+ Ke7 Qg6 Kf8 Nfd7+
2BB1BR1/P1Q1q1Q1/1N2bQ1r/3pN1nK/2p3P1/pn3B2/3Pbk2/3n1b1B w - - 0 1 illegal: No proof kernel
8/P2b3R/PP1QbB2/2r1N2N/1p1nk2n/ppQ2Rn1/1b3R1K/2QQ1qQ1 w - - 0 1 illegal: No proof kernel
4N1n1/1Nb1Bb2/K2p3N/1qNQ1nP1/p1Pq2R1/k1Pp2qN/Br2Q3/6B1 w - - 0 1 legal: proof: h4 b5 c4 f5 b4 g5 hxg5 a5 a4 c5 axb5 Bh6 e4 Bf8 exf5 Ra6 Ra3 Rh6 Rd3 Rh3 Rd4 Rc3 dxc3 cxd4 Ke2 e5 Kd3 Ke7 g4 Kd6 f4 h5 b6 a4 b7 h4 g6 h3 g7 h2 b5 Kc5 f6 Nc6 b8N Rh4 f7 Rh5 f5 Nge7 g8N Nd5 f6 Rh8 g5 Be7 f8Q Ne3 b6 Rh3 f7 Rg3 b7 Rh3 Na3 Qa5 Na6+ Kd6 b8N Nf5+ Be3 Qb5 Qe8 Bd8 f8B+ Nce7 Nh6 Bc7 Nc6 Rg3 Qe2 Rg2 Nh3 Rf2 Qf3 Rb2 Rg1 h1Q Rg4 Qg1 Na5 Bb7 Qe2 Bd5 Qd8 Bf7 Nc5 Qg3 Ke4 d3 Bg1 Qf2 Bg7 Ng8 Bf6 Qh4 Qa8 Ng7 Ke3 e4 Be7+ Ke5 Nab7 Qg3+ Qf3 Qh4 Be2 Qg3 Bd1 Qh4 Bc2 Qg3 Qa5 Qh4 Qe2 Nf5+ Kd2 e3+ Kc1 d6 Bb3 Qg3 Ba2 Qf4 Qa8 Qd4 Qa5 Qa6 Nb5 Qb6 Qc2 e2 Qd2 e1Q+ Qd1 Bb8 Nc7 Qg3 Ne8 Bc7 Qa8 Rf2 Qc2 Qc6 Kb2 Qb5+ Ka3 Rd2 Qd1 Rb2 Nb3 Qdf4 Qd2 Ke4 N3c5+ Kf3 Qe1 Qd4 Qe6 Qh4 Qd5+ Ke2 Qe6+ Kd2 Qe2+ Kc1 Qa5 Qc6 Qb5 Qd7 Qc6 Qg3 Qd5 Rc2 Kb4 Kb2 Qc6 Rd2 Kb5 Ka3 Ka6 Rb2 Qd5 Qb5+
6r1/3R1pqP/P1qQpqBr/B4p2/B3b2n/8/kNQRRRKP/b5R1 w - - 0 1 illegal: No proof kernel
1rQ3N1/1np1b3/R1BR2Rp/1P1N1Kp1/2q4Q/4Pn2/Rn1kPNb1/5R1n w - - 0 1 legal: proof: c4 e5 h4 b5 a4 g5 axb5 e4 hxg5 e3 dxe3 Be7 b4 Ba6 b6 Nh6 b5 Bc8 b7 Ng8 b6 Bf8 g4 a5 g6 f6 g5 a4 g7 Nh6 g6 Ng8 Ba3 Ra5 Be7 Rb5 cxb5 Nh6 Bd6 Ng8 Bf4 Qe7 Bh6 Qd8 Bg5 fxg5 Kd2 Ke7 Kd3 Kd6 Ke4+ Kc5 f4 Kc4 f5 d5+ Ke5 a3 f6 d4 f7 d3 Nh3 h6 Ra2 d2 Nc3 Nf6 g8R Be7 f8R Ne4 g7 Ng3 Nf2 Na6 b8R Bh3 b7 Qd3 Nd5 Bg2 Rf6 Nc5 Qe1 d1N Ra8 Nb2 b8Q Nb7 Raa6 Qc2 Rg1 Nh1 Qc8 Kb3 Rg6 Qc4 Kf5 Kc2 Rd8 Re8 Qb4 Kc1 Qa4 Kd2 Rdd6 Rd8 g8N Re8 Qe6 Ra8 Qc8 Rb8 Ra1 a2 Qb4+ Qc3 Qe4 Qc4 Qh4 Bf3 Bh3 Bg2 Raf1 a1N Bg4 Nd8 Bf3 Nb3 Rfa1 Nb7 R1a2 Na1 Rc1 Nc2 Rf1 Ne1 Nb6+ Qd4 Bc6 Nf3 Nd5 Qc4
4bB1r/R1Q4n/1P1b2Rp/Qn1p1R2/qN5k/1P2rp2/1NP3p1/1QRR3K w - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 c5 dxc5 b4 f6 e6 f7+ Ke7 a3 Qb6 axb4 Qc7 b5 Qd8 f4 g5 h4 Nf6 f5 Ng8 Bg2 g4 Be4 Qb6 Bd3 Kd8 f6 Qb7 Bg6 Qd5 Bd3 Qh5 Bf5 Qg5 hxg5 exf5 Kf2 a5 Kg2 d5 e4 f4 c6 g3 e5 h6 b3 a4 c7+ Kd7 e6+ Kd6 e7 Ke5 e8Q+ Kf5 b6 a3 g6 Kg5 g7 a2 Ba3 Nd7 Nf3+ Kg4 Nfd2+ Kg5 Nc3 Nb8 Nc4 Rh7 Qa4 Ra6 Nb2 Be6 c8Q Bf5 Qa5 Ra8 Rf1 f3+ Kh1 Bc5 f8R Bd7 f7 Nf6 g8R+ Kh4 Rg6 Nc6 Rb1 a1Q Na2 Na7 Re8 Be7 f8R Bb4 Re7 Nb5 Qd8 Bc6 Ra7 Re7 Qc7 Nh7 Rf5 Re3 Qc1 Be7 Rd1 Rh8 Bc5 Be8 Nb4 Qa4 Ra1 Bf6 Bf8 Bc3 Qb1 Bd4 Qa2 Bc5 Rac1 Bd6 Qb1 g2+
1R4Bk/1qprnP2/2p1P2N/2N3b1/4pN1N/1KR2Q1p/3rQRPn/N6r w - - 0 1 illegal: Other
1k2qQr1/pB1Q2r1/4p1p1/3N2B1/PP1bP2B/KnB2p2/R2QBb2/2q2R2 w - - 0 1 legal: proof: d4 c5 dxc5 b5 c4 e6 cxb5 Ke7 f4 Kf6 f5 Ke5 f6 Nc6 Qa4 Nce7 fxe7 Kf5 Qd1 Kf6 Kf2 Bb7 Ke1 Bf3 Nc3 h5 Nd5+ Kg6 Ne3 f5 Ng4 Kf7 g3 f4 Nf2 Be4 g4 Bf5 gxf5 Qb8 Ng4 hxg4 Kd2 Qc8 Ke1 Qd8 Kd2 Ke8 Kc3 d5 Kb4 Kd7 e8Q+ Kc8 h4 d4 a4 d3 e4 g6 h5 g3 b6 f3 h6 d2 b7+ Kc7 b8B+ Kb7 f6 g2 f7 Qd3 h7 Qb1 Ra2 Bg7 c6+ Kb6 c7 Kb7 c8B+ Kb6 Ka3 Nf6 b4 Nd7 Bb7 Nc5 Ne2 g1B Nf4 Nb3 Be2 Bf2 Rf1 Bc3 Qc2 d1Q Bd6 Qa1 Be7 Kc7 Bh4 Qd7 Qd3 Rc8 Nd5+ Kb8 Bcg5 Bcd4 Qd2 Qb1 Qe7 Rc7 f8Q+ Qe8 Qeg7 Rg8 h8B Bb6 Qh7 Qc1+ Bb2 Bbd4 Qhe7 Qc2 Bc3 Rd7 Qd6+ Rc7 Qc6 Rcg7 Qd7 Qc1+
5Qr1/RB1RP3/NKQp4/P1Q2qb1/rQ3pN1/pQN1n3/3P1p1p/1nk5 w - - 0 1 illegal: No proof kernel
3Br3/kB1P3R/1p1b1pQp/1P2r3/5n1P/2B1b2p/N1Rq1p2/KQ1BRB2 w - - 0 1 illegal: Other
k2B4/1r4Pr/3q2p1/NRrB2P1/n1QQKq1b/5nRb/P1Q2b2/2q1RRR1 w - - 0 1 illegal: No proof kernel
n2Nb3/1B1qrB1N/Pk1N1b2/p5B1/P1Q4Q/B5RP/1qrBbr2/3qKn2 w - - 0 1 illegal: No possible last move, all moves rejected
nkB1QB2/q1qr1p2/3PPRn1/1K3qQn/1Nb1RP2/2b1R3/RR6/b3Qr2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e6 d4 Qf6 d6 Qg5 Nc3 Qd8 Nd5 Bb7 Nf4 Bc8 d5 e5 Ne6 Qh4 Nd4 exd4 Qb3 Qf6 Qd1 Qd8 Kd2 Kd7 Kd3 g5 Kc4 c5 b4 a5 h4 d3 f4 g4 e4 d2 h6 g3 e5 g2 e6+ Ke8 b6 a4 b5 a3 b7 a2 d7+ Ke7 b6 Kd6 h5 Be7 h7 Ra7 h6 Na6 b8Q+ Nc7 b7 Bf6 Nf3 g1Q Ne5 Ne7 Ba3 Ng6 Qe1 d1Q Nd3 Qh5 Nb4 Qf5 Rh2 Bg7 Re2 Bc3 Re4 Qe7 d8Q+ Qd7 Rd1 a1B Qg5 Rd8 h8R Ra6 Qa7 Na8 b8R Bb7 h7 Qc7 Kb5 c4 Rd2 Rd7 Ra2 Rc6 Qa6 Qa7 Qa4 Bd2 Rbc8 c3 Qe2 Qcb8 Na6+ Rc5+ Kb4 Nh4 Rhf8 Rdc7 h8R R5c6 Qab5 c2+ Ka4+ Bb4 Rh6 c1N Rf6 Ng6 Rh8 Rb6 Qe8 Rd7 Rcc2 Qc8 Qd1 Ne2 Rh3 Ng3 Qd2 Nh5 Rhe3 Rc6 Rcb2 Rc1 Bc4 Rg1 Qe1 Rf1 Bb5 Qcc5 Bc6 Qc1 Kb5 Qc2 Nc5 Kc7 Nd3 Bd2 Bf8 Qc3 Nb4 Qce5 Kc4 Bc3 Bb5 Qd6 Ba6 Bc6 Bc8 Kb8 Qg4 Qdc7 d6 Bd5+ Kb5 Ne7 Qg1 Ng6 Qg5 Bc4#
1R1R1b2/1PRp1B1k/1r4r1/3bn3/BQnBBN1q/b3BQ1P/2nP3b/b6K w - - 0 1 illegal: No proof kernel
1nb2N2/1Q4r1/3pKB1k/2BP1n1r/r2BQ2b/qR1BbN1P/1rnB2P1/3Q4 w - - 0 1 illegal: No proof kernel
1rK2Qr1/1P1Nb3/NBB2b1P/2N3n1/1q1bnpR1/3bqP2/N2k1N2/Q3q1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1R2qB1Q/nn5K/6qb/2BNB1Q1/1bPpbP2/1r1P2QR/1r1BnnB1/6k1 w - - 0 1 illegal: No possible last move, all moves rejected
4r3/QR4Q1/b4nnB/2bKbRpk/2r2Q1P/2q3P1/BPQ2b2/N1QRqr2 w - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 b5 a4 f5 axb5 h4 exf5 Rh6 Nc3 Rh7 Nce2 Rh8 g3 h3 Nf4 Nf6 Ng2 hxg2 Ra5 Ng8 Ra2 Rh5 Ra1 Rh8 Ke2 Kf7 Kd3 c5 Ke4 e5 f4 a5 d4 c4 h4 g6 b6 c3 f6 a4 d6 a3 d7 a2 f5 c2 d5 Qe8 d8Q Ra4+ Bc4 Nh6 d6+ Be6 b7 Ng8 d7 Bc5 Qc7 Qc8 d8R+ Ne7 Ne2 g1B Nd4 Be3 Rf1 Bf2 Bh6 c1B Rd7 g5 Nb3 Bf4 Qc2 Re8 Rad1 a1R Qc1 Rb1 Na1 Rb4 Qc6 Ra4 Rc7 Nd7 b8Q Ng6 Rb7 Qc7 Qa7 Rb4 Kd3 e4+ Kc3 e3 Ba2 e2 Qc2 Kg8 f7+ Kh7 f8Q Bc4 f6 Ba6 f7 Nf6 Qfd6 Rd4 f8Q Rc4+ Kd3 e1Q Qh1 B4e3 Qf4 Bed4 Qc6 Be5 Qcc1 Bc3 Qa4 Be5 Qac2 Nh8 Qe7+ Kg6 Qg7+ Kh5 Qe4 Bfd4 Rf5 Bf2 Qee3 Ng6 Qf4 Ng8 Qd7 Qca5 Qdd4 Qec3+ Ke4 Qab4 Kd5 Nf6+ Kc6 Qa5 Qd7 Qe1 Qg7 Qac3 Rd6 Ne4 Qce3 Qg1 Qed2 Re1 Qdc1 Nf6 Rdd7 Qf1 Rd1 Qe2 Rb6 Rf1 Rb7 Ng8 Kd5 Qed2+ Qd3 Qe1 Qdc2 Nf6+
Q2Q1K2/b1BNpbP1/4r2Q/1rQqP3/1n2RQ1n/1BPk1B2/1qq1q3/2Rr4 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 f4 Nb8 fxg5 Bh6 Nh3 Bg7 Ng1 Bf8 g4 h6 g6 Rh7 Nd2 Rh8 Ne4 h5 g5 Bh6 Nf2 Bf8 Ng4 hxg4 Kd2 a5 Kc3 d5 Kd4 Kd7 Ke5 f5 b4 d4 e4 g3 h4 d3 b6 Kc6 h5 Kb5 g7 Kc4 c6 f4 b7 a4 b5 g2 g6 a3 h6 f3 h7 a2 c7 f2 b6 Qd7 c3 Nf6 g8B+ Nd5 Be2 f1R Bf4 Bh6 g7 Ra6 Bf3 d2 Rh4 Kd3 Rc1 Nb4 Bb3 a1Q Bh2 Re8 h8Q Be3 Qh6 Qb2 Bf4 Qa4 Rg4 Be6 c8Q Rd8 Qc5 Bf7 Kf5 Rd4 Bc7 Nd7 b8Q Nf8 b7 Re6 Qa8 Ng6 b8Q Rf2 Rf4 Nh4+ Kg5 Qa6 Qf1+ Re2 Qd8 d1Q Qf2 Rb6 Qg3 Bf2 Rg4 Rb5 Qf4 Nf5 Rh4 Qdc2 Rg4 Rd7 Rh4 Qe6 Rg4 Qd5 Rh4 Be6 Kg6 Bf7+ Kh7 Rd6 Kh8 Rd2 Rg4 Re6 Rh4 Bg6 Kg8 Rd1 Kf8 Qe2 e5 Qbc2 Nh3 g1Q Ng5 Qg2 Nh7 Bf7 Nf6 Bg1 Rg4 Nh4 Nd7 Qb2 Qfg5 Qec2 Re4 Qge2 Qf4 Be3 Qd6 Bb6 Qc5 Ba7
2Q1q2K/5N2/2bBpbRn/QrnbQ2q/1PNRP1b1/6n1/1N4NP/N1k1r3 w - - 0 1 illegal: No possible last move
n1qnKR2/r1BP2k1/1q1Pn3/3prRB1/1BQ1R2N/3P4/B1b2b2/1qn3QB w - - 0 1 illegal: No proof kernel
1r6/QpR2QnP/6K1/bPn2QR1/r1P1RR2/1NkB3N/brqr2q1/b6R w - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 c5 gxh5 c4 b5 c3 Ba3 Rh7 Bb4 axb4 dxc3 Nc6 c4 Rh8 c5 Nb8 Ke2 Kf7 Kf3 Kf6 Ke4 g5 c4 e5 f4 b3 a4 d6 h4 b2 h6 g4 a5 g3 c6 g2 c7 Nd7 a6 Bg7 h5 Ra7 h7 Ne7 Nh3 g1Q h6 Qg2+ Qf3 Qg8 Bd3 Qc2 Nd2 b1R Qg4 Rb2 Rae1 Ra8 a7 d5+ Ke3 d4+ Ke4 Rb8 Nb3 Ra8 Rhg1 Rb8 a8Q Nc5+ Kf3 Bd7 c8R e4+ Kg3 e3 Kh4 e2 Kh5 Bc6 Rc7 Be4 Qa7 Qd5 Rg3 Qc6 Rh1 e1B Rg2 Rhg8 h8R Ba5 h7 Ra8 Qf3 Rgb8 Re8 Qd5 Rg5 Bh8 Be2 d3 Qf2 d2 Bd3 d1R Qf3 Kf7 f6 Ke6 f7 Rd2 f5+ Ke5 f6+ Bf5 Qf1 Qg2 f8Q Bg7 f7 Bh8 Nc1 Kd4 Nb3+ Kc3 Qg8 Be4 f8R Nf5 Kg6 Ng7+ Qf5 Qc1 Be2 Bb1 Qf7 Qc2 Bd3 Ba2 Re4 Bb4 Qb6 Ra4 Qa7 Ba5 Rf4 Qb1 Re8 Qc2 Ree4 Nge6 Na1 Rb3 Ng1 Kb4 Kh6 Bb2 Kh5 Kc3 Kg6 Ng7 Nh3 Rbb4 Nb3 Ba1 Nd4 Rb1 Nb3 Rb2
Bbq1nQQN/PQ3R2/1b4B1/B3nb1r/2B3p1/2nR1Pb1/1K2k1P1/1Bn3r1 w - - 0 1 illegal: No proof kernel
n6R/kB1RrQ2/rp1RK3/5B1Q/q1B2b2/4P2p/NPPrBn2/n2bB2b w - - 0 1 illegal: No possible last move, all moves rejected
1R3Nr1/2n1QQb1/2b1pqbr/1N4qp/PB1B1k1P/8/1n1NPK1N/N5rB w - - 0 2 legal: proof: c4 a5 b4 g5 f4 b5 fxg5 d5 cxd5 Nd7 bxa5 b4 a4 Nb8 Ra3 bxa3 d4 Kd7 h4 Kd6 g4 f5 a6 h5 a7 c5 g6 c4 g5 c3 g7 c2 g6 a2 Na3 a1Q Bb2 c1R Nf3 f4 Bg2 Qb1 Kf2 Bd7 Nd2 f3 Nc2 Bg4 Na1 Nh6 g8Q Na6 g7 Be6 Qf7 Nf5 g8N Rc7 Nh6 Rc3 Ng4 Bc8 Nh2 Nc7 Qg1 Rb8 a8N Qc1 Ba3+ Rc5 Bb4 Ne3 Qf1 Rb6 Rg1 Bg7 Bh1 Qc3 Qg2 Qc1 Qg5 Rg8 Rf1 Qb2 Rb1 Nc4 Qe3 Bf5 Qg5 Ne8 Nc7 Bg6 Qe3 Qc3 Rb3 Nb2 Nb5+ Kd7 d6 Rg5 d5 Qf6 Qe4 Rg1 Qe5 Nc7 Qg5 Kc8 d7+ Kb7 d6 Kc6 Qe3 Qg5 Qe5 Qf8 d8N+ Kd7 Qff4 Qff6 Ne6 Kc6 Qee3 Kd5 d7 Rd6 Qa7 Ra6 Qc4+ Ke5 Nf8 Kf5 Qf7 Kf4 d8B Rc6 Rc3 Re6 Rc6 Rd6 Rb6 Rc6 Ndf1 Re6 Rb8 Rb6 Ke1 f2+ Kd2 Na6 Nd6 e6 Nb5 Bh8 Qh7 Rb7 Bb6 Re7 Qd7 Nc7 Bd4 Reg7 Qe7 Rf7 Ne3 f1B Ke1 Bg2+ Nef1 Bc6 Kf2 Rfg7 Nd2 Rf7 Qh6 Rh7 Qhg7 Rh6 Qgf7 Bg7
r7/k1p2r2/b6N/2rn3b/P1P1K1R1/1NNqQnp1/2R1N1P1/QRn2BNq w - - 0 2 legal: proof: d4 e5 dxe5 a5 b4 f6 bxa5 Kf7 e4 Ke7 e6 Ke8 e7 Kf7 h4 Ke6 e5 g5 Nh3 g4 Bb2 Bh6 Ng1 Bg5 Bd4 Kd5 hxg5 Kc6 e6 Qe8 Bc3 Qd8 Be5 fxe5 Kd2 d5 Ke3 h5 e8N b5 c4 Kb7 a4 e4 f4 h4 e7 g3 f5 d4+ Kf4 d3 a6+ Ka7 f6 b4 g6 e3 g7 b3 f7 d2 f8N e2 Ke4 e1N Nc3 h3 Nf6 b2 e8Q b1R Ra2 h2 N8d7 Nd3 Nh5 Rb5 Nc5 Nc6 Nb3 Nge7 g8N Rc5 Nf4 Rh7 Nh6 Nd5 Qa1 d1B Rc2 Bh5 Nfe2 Rf7 Qe5 Qd7 Qg5 Nd4 Qe3 Kb6 a7 Nc1 Qa2 Ba6 Qa1 Rc8 a8R Nf3 Rb8+ Ka7 Rb6 Rcf8 Rg6 Ra8 Rg4 Nb6 Nh3 Qd2 Ned4 Qd1 Be2 Na2 Rf1 h1Q Ng1 Qd2 Rb1 Nd5 Bf1 Nc1 Nde2 Qd3+
N2K2nn/Q4Q1N/pQ1R2Br/1P3P2/1BB1qk1n/1bb2p1q/q4P2/Q4Qr1 w - - 0 1 illegal: No proof kernel
N1b1N1rq/5nN1/4RbK1/2Pp4/4nB2/3PrPRp/Q1N1k1qn/4qNQR w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c6 b4 Qc7 b6 Bh6 b5 Bg7 b7 Bf8 b6 Qd8 Bb5 cxb5 Ke2 Kf7 Ke3 a5 Kf4 d5 g4 h5 c4 h4 g6+ Kf6 g5+ Kg7 c5 h3 d3 b4 f3 a4 Nd2 a3 Ne2 b3 Nd4 a2 Qg1 b2 Nf1 b1N Nc2 Nd7 b8Q Ndf6 b7 Nh6 Qa7 Ne4 b8N Nbd2 Na6 Rg8 Nc7 Nf7 Qa5 Ra7 Na8 e5+ Kg4 Be7 Kh5 Rc7 Rb1 a1Q Rb6 Qd7 Qa2 Bf6 Re6 Qa4 Nce3 Re7 Nc2 Nb1 Be3 Nbd2 Bf4 Qb4 Qc4 Qbb2 Qa2 Kf8 g7+ Ke8 Ng3 Nf1 g6 Nh2 Nf1 Kd7 Qf2 Rf8 g8R Ree8 Rg7 Rg8 Qg1 Re7 Rh7 Ree8 g7 Re7 Kg6 Ree8 Re7+ Kc6 Rh5 Kb5 Re6 Re7 Rg5 Ree8 Nce3 Qg2 Rg3 Kb4 Nc2+ Kc3 Rg5 Rgf8 g8N Qb2 Rg3 Qb8 Nfe3 Kd2 Nf1+ Ke2 Re7 Bg7 Nf6 Rh8 Re6 Rhg8 Nh5 Bf6+ Ng7 Ned6 Nb6 e4 Na8 Bd8 f6 e3 Qa1 Ne4 Qa2 Nh6 f7 Bf6 f8N Nf7 Nh7 Qb2 Qb3 Be7 Bg5 Nf6 Qa2 Kd1 Rd6 e2 Bf4 e1Q Rc6 Bd8 Rd6 Re3 Re6 Ne4 Nf6 Ke2 Ne8 Rh8 Nh5 Rg8+ Kf5 Qh8 Nhg7 Bh4 Kg6 Bf6
rN1qQ3/3pR1R1/4B1B1/1k3r1Q/2qP3p/2RnBB2/1Pnn1P2/1qb1B1Kb w - - 0 1 legal: proof: e4 g5 h4 b5 hxg5 f5 exf5 c6 a4 Nh6 axb5 Ng8 Nc3 c5 Nce2 c4 d4 Bg7 Nf4 Bf8 Nd3 cxd3 g4 a5 c4 e5 b6 h5 g6 a4 f6 a3 g5 h4 f7+ Ke7 b7 Kd6 g7 Kc6 c5 e4 g6 a2 Bg2 d2+ Kf1 Qe7 Nf3 e3 Ne5+ Kb5 c6 Ra3 c7 Qd6 Qh5 Qc5 Nc6 Nf6 g8B Ra8 g7 Na6 b8Q+ Bb7 c8R Ne4 Rg1 Nb4 Bh7 Nc2 g8B Bh6 f8B Bf4 Rb1 a1Q Bf7 Qd5 Bb4 Rf8 Rc7 Qa4 Qe8 Qg5 Nb8 Qa2 Bf5 Qd8 Bh1 Bc6 Rg7 e2+ Kg1 e1N B7g6 d1Q Bbd2 Bd5 Rc3 Qc4 Ra1 Bb7 Ra6 Rf6 Re6 Nd3+ Be1 Bh6 Bf4 Qb1 Ree7 Rf7 Be6+ Rf5 Be5 Bd2 Bf4 Bc1 Be3 Nd2 Bg2 Bf3 Bh1 Be2 Bb7 Bf3 Bbd5 Bg2 Bf3 Bh1
1Q1q1B1B/r2Q3p/1K6/2pb3B/4Q2b/NBR1PPnP/Bk3q2/R2qrnn1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 g4 Ke8 gxf5 e6 d4 Be7 d6 Bf8 Nc3 e5 d5 Na6 Nb5 Nb8 Nd4 exd4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 c5 a4 g5 e3 g4 h3 g3 a6 g2 a7 b6 f6 d3 d7 d2 a5 Ke4 d6 Bg7 a6 Nh6 f7 Bc3 f8B Ng4 Bb2 Bb7 Be2 Nc6 Nf3 g1N Nd4 Ne7 Qa4 Nh2 Bh5 Kd3 f3 d1Q Nc2 Bd5 Na3 Nf5 Qe4+ Kd2 Rc1 Bf6 Rc3 Nf1 Ba1 Rb8 a8B Bh4 a7 N5g3 Bc6 Qc2 a8B Kc1 Ka6 Rg8 Ba4 b5 Bb3 Rb7 Ba2 Rc7 Kb6 b4 Bc6 b3 Ba4 b2 B4b3 b1Q Bb2+ Kd2 Ba1 Qbd1 Bb2 Qe8 d8Q Ra7 d7 Rg4 Ba1 Kc1 Qb8 Rg5 d8Q Rgg7 Rd3 Qf2 Qd7 Rg5 Bh8 Qd8+ Kb5 Rg7 Rc3+ Kb2 Qbc7 Ra4 Qb8 Rd4 Ka6 Rd2 Kb5 Re2 Ka6 Re1 Kb5 Qc8 Kb6 Qd8+ Ka6 N1e2 Qba7 Qd3+ Qb5 Rd1 Qb7 Nh2 Re1 Ng1 Qb8 Qdd2 Qc6 Ra7+ Kb5 Nhf1 Qd7 Rc1 Rd1 Rc2 Ra1 Rc1 Ba4 Re1 B4b3 Qg5 Kb6 Qd1 Qb5 Qe7 Qd7 Qd8+
N1n1rkb1/b3n2p/pP1QrBP1/3Q1Q1R/Q1K1N3/2Nqr1q1/6RP/4bQ2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g6 f6 Qd7 f5 Nc6 Bd3 Qd8 f7+ Kd7 f6 Nb8 Bf5+ gxf5 Ke2 e5 Kd3 c5 g4 a6 b4 e4+ Kc4 f4 d4 f3 d6 f2 g5 f1Q+ Ne2 e3 d5 Be7 f8Q Qf5 g6 Nh6 b6 Qf2 f7 Ng4 b5 Bh4 b7 Rg8 Ng3 e2 Ra5 e1B Bb2 Nh6 Bf6 Nf5 Ne4 Ne7 Nbc3 Nbc6 b8Q Qg3 Rg1 Na7 Rg2 Bg5 Qa4 Be3 Qh6 Rh8 Qh5 Re8 f8Q Bb7 Qe2 Nac8 Qf1 Ra7 Qh6 Ba8 Qg5 Rc7 Qgf4 Rc6 Qb6 Rf8 Qf5+ Ke8 Qc7 Rg8 d7+ Kf8 Qce5 Re6 d6 Bb7 Qd5 Bg1 Kb3 c4+ Kb4 Ba7 b6 Qe8 d8N Qd7 Kc5 Qb5+ Kd4 Qb1 d7 Qbd3+ Kc5 Ba8 Nf7 Bc6 d8Q+ Be8 Nfg5 Rh8 Ne2 c3 Q8d6 c2 N2c3 c1R Kb4 Bf7 Rb5 Qc2 Kc4 Bg8 Rc5 Rd1 Ra5 Rd3 Rc5 Re5 Rb5 Re3 Ne6+ Ke8 Nc7+ Kf8 Na8 Re6 Rc5 Qd3+ Kb4 Rf3 Qdb3 Re3 Qh3 Bf7 Rh5 Kg8 Qc4 Bf2 Qf5 Be1 Bg5 Kg7 Qcd5 Re8 Bf6+ Kf8 Kc5 Bg8 Kb4 Qb1+ Kc4 Qd3+
2Q1K1Qr/2rn3B/4bppP/3qR1nN/4bPQB/k1B5/1RQQ1P2/1bb4b w - - 0 1 illegal: No proof kernel
1nb2bR1/1Q1P1B1k/2Q2p2/2K3r1/1P1R1b2/2pbBBN1/B1PBq1r1/1Rn3n1 w - - 0 1 illegal: No possible last move
1Q1N1R2/b2nR1r1/2NbPQ1N/1p6/bP1P1B2/p1K3nb/2Nr1qR1/2r3Nk w - - 0 1 illegal: No proof kernel
5b1K/2rQ1n2/pQ1R2B1/5p1P/1B3q2/nB1P1P1Q/1N3nn1/1bBBNkrb w - - 0 1 illegal: No proof kernel
2R1q1k1/R1NR1p2/1b2Q1nP/N1QP3p/Kr1Rb1nP/3r1R2/2B1q1n1/n4Q2 w - - 0 1 illegal: No proof kernel
5knB/rq3b1b/1N2r3/n5pP/B1P3PN/1QbN2B1/p5qB/1BKb1R1Q w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 f4 e5 fxe5 c4 g4 h4 Ra3 Rh6 Rg3 c3 dxc3 hxg3 c4 Rh4 c5 Rh8 Kd2 f5 h4 a5 e4 g5 c4 d5 h5 f4 e6 a4 c6 a3 e7 d4 b6 g2 b5 a2 c7 f3 e5 f2 b7 d3 b6 Ra6 Bb2 Bf5 c8N Kf7 e8B+ Kg7 e6+ Nf6 e7 Kg8 Ne2 g1Q Qb3 Ra3 Kc1 Bd7 Nd2 Be6 Ba4 Bf7 e8Q Qe7 Nf3 Rh6 Nf4 Qg2 Qc6 Bg7 Nh4 Kf8 Qf3 Nc6 b8B Qd7 b7 Ng8 Nb6 Na5 Be2 Qe7 Rf1 Bc3 Bd1 Qb4 Bc2 Re6 Bb1 Qb5 Be5 Qc6 b8B d2+ Kc2 d1B+ Kc1 Qb7 Nd3 Rf6 Bh2 Re6 Rg1 f1B Bbg3 Bfe2 Rf1 Bc2 Qc6 Bed1 Qe4 Qh3 Qh1 Qhg2 Ne1 Bh7 Nd3 Bb4 Bh8 Bc3 Bd7 Nc6 Be8 Ra7 Bd7 Na5 Be8 Qbf3 Ba4 Qb7
4n3/2bp1N1p/1q1P2Nr/rnP1Q3/3Q1PK1/1nRQq3/2b3R1/1QnN1QBk w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c6 b4 Qc7 b6 Bh6 b5 Bg7 b7 Bf8 b6 Qd8 Bb5 cxb5 Ke2 Kf7 Kf3 e5 c4 a5 d4 a4 g4 b4 f6 Kg6 d5 b3 f7 b2 c5 a3 Be3 a2 Nc3 b1Q Qf1 Qd3 Rc1 a1N Nh3 Qd4 Rg1 Na6 b8Q Nc7 b7 Ra5 Rg2 Nb3 Nd1 Nb5 Rc3 Bd6 f8Q Qd3 Qf4 Qb6 Qd4 Bc7 d6 Nf6 Nf4+ Kg7 g6 Kh6 g7 Kg5 g8N Kh4 g5 Ne8 Nh6 Rf8 g6 Rf6 g7 Re6 Nh5+ Kh3 Nf7 Rh6 g8Q e4+ Kf4 Qd2 Qgh8 Qe2 f3 Qd3 Bg1 e3 Qhg7 e2 Qge5 e1N Qa8 Qe2 b8Q Ba6 Qad5 Qe3+ Kf5 Nd3 Nf4+ Kh4 Q5c4 Ndc1 Ng6+ Kh3 f4 Bb7 Kg5 Be4 Qb7 Bb1 Qbe4 Bd3 Qb4 Bc2 Qed3 Nd2 Qb1 Ndb3 Kf5 Ra1 Bf2 Ra2 Rg4+ Kh2 Bg1+ Kh1 Rg2 Ra8 Kg4 Ra5
Rn2k1N1/2R1N3/1pP1brb1/bP2P3/1N1q1Np1/RqQ2b1Q/3NK2B/r3n3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 Bg2 a4 Bd5 c3 Bb3 axb3 dxc3 Qc7 c4 Qa5 c5 Qd8 e4 g5 h4 d5 c4 f5 a4 b6 h6 d4 h5 b2 e6 d3 h7 f4 e5 d2+ Ke2 g4 h6 Ke7 c6 Bd7 b5 Ra6 c7 Ra5 c8N+ Ke8 e7 Ra8 a5 Bc6 a6 Bd7 c5 Nf6 c6 Bg7 a7 Rg8 h8R Nh7 Qc2 Qc7 Nh3 Qd6 Qc3 Bf8 Ra3 Ng5 h7 Rg6 Rg8 Rf6 h8Q Nf3 Qh6 Kf7 e8N Qd4 Ne7 Ne1 Rh2 Be6 Qh4 Rf5 Nf6 Bh6 Rd8 Bg5 Nfg8 Rf6 Rd7 Ke8 Rc7 d1Q+ Kf1 f3 Bf4 f2 Nd2 Qb1 Ke2 Qa2 Bg3 b1B Nf4 Qb3 Qh3 Bbf5 Rh1 Bg6 Bh2 Nc2 Rha1 f1B+ Kd1 Bg2 Ke2 Ne1 R1a2 Na6 Ra1 Rc8 a8N Nb8 Rd7 Rc7 R1a2 Ra7 Nc7+ Kf7 Ncd5 Ke8 Rb7 Bh6 Rc7 Bf8 Nf5 Bb4 Nfe7 Ba5 Nb4 Bf3+ Kf1 Rf5 Ra4 Rf6 Nbd3 Bb4 Ra5 Rb7 Ra8 Ra7 Ra4 Bg2+ Ke2 Bh1 Ra1 Ra4 Ra2 Ba5 Nb4 Bhd5 Rb2 Ra1 Ra2 Bde4 Ra3 Bf3+
2R5/1NNN1q2/N1pB4/2K1RPr1/2P1Q1nQ/qnn1p1bN/kPr5/nb4R1 w - - 0 1 illegal: No possible last move
4n1Q1/BR2KBB1/3p1Q2/1P3NPp/b1nqkb2/1br1N2N/6NP/b1N3rq w - - 0 1 legal: proof: c4 d5 cxd5 Kd7 a4 g5 f4 b5 axb5 Na6 fxg5 Nb8 d6 Ke6 d7 Kd6 d4 c6 b4 Bb7 d5 Qc8 d8B Qc7 Ra2 Kd7 d6 Ke6 d7 Bc8 Rd2 Qb6 Rd6+ exd6 Kd2 Ke5 Kd3 a5 Kc4 h5 g4 f5 e4 f4 g6 c5 g7 f3 g5 a4 Nc3 a3 Qd4+ Ke6 e5 Kf5 Kd5 a2 e6 a1Q e7 c4 e8N f2 Na2 c3 Nh3 c2 Be3 c1B Nc7 Be7 Qf6+ Kg4 Ke6 Qc6 b6 Qc2 b7 Qc6 Ba7 Bf4 Bc4 Kf3 Nc1 f1B Nd5 Qd4 Ne3 Ke4 b5 Bd3 Rf1 Bc2 Ba5 Ba4 Bc3 Bd8 Kf7 Ba5 d8N Nd7 b8Q Nb6 Ne6 Qcd5 Bb3 Nc4 Ba1 Bd2 Ke8 Be5 Nef4 Be6 Nfg2 Bc3 Rf5 Bf4 Kd8 Qb7 Rc5 Bf7 Rc7 Qc6 Rb7 Bb2 Qh6 Nf6+ g8N Ne8 Qf6 Rh7 Ke7 Bd5+ Kf8 Rc7 Nh6 Bc3 Bb2 Bg8 Nhf5 Be6 Ba3 Ba1 Bb2 Na3 Rb6 Qc2 Ng7 Qd5 Na2 Qc1 Rc6 Qh1 Qf7 Nf6 Rb6 Qc4 Be5 Bb2 Rb7 Qd4 Ngf5 Rc3 Bb6 Bc4 Qg8 Ne8 Bg7 Be6 Bc4 Bc2 Qd8 Ra4 Bc5 Rb4 Bb3 Ba1 Qf6 Bd1 Bc4 Ba4 Ke7 Rb1 Ba7 Rg1 Nc1 Bf7 Bf1 Ba2 Bc4 B2b3 Bf7 Nc4
1b1R1qB1/1Nk5/2p2nP1/n5BQ/R1n1r3/2PR2rQ/PK1p3q/1b1RRBn1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 f4 Qe7 fxg5 Qd8 g4 h6 g6 Qe7 Nc3 Qf6 Ne4 Qd8 g5 h5 Nf2 Qf6 Ng4 hxg4 Rb1 Qe7 Ra1 Qd8 Kd2 d5 Kc3 Kd7 e4 b5 h4 f5 g7 d4+ Kb2 b4 a6 g3 a7 b3 c3 f4 g6 d3 h5 f3 e6+ Kc6 h6 f2 e5 g2 e7 Qd6 e8R Bf5 e6 Qh2 h7 Bd6 e7 Nf6 Nf3 g1N Bg5 d2 g8B Bb1 Nh4 Kd7 Rf8 Nc6 e8R Na5 Nf5 c6 Rd8+ Kc7 Qh5 Bg3 Rd5 Re8 a8R Re4 Nd6 Be5 Nb7 Bg3 Bc4 f1Q Rfd8 Qf3 Bf1 Bf4 Ka3 b2 Rd3 Be5 Bf7 Re8 h8Q Rg4 Bc4 Rg3 Bg8 Qf5 Qh3 Bf4 Q8h5 Re4 R8d4 Qc8 Ra4 Qe8 Rad8 Qf8+ Rb4 Bc2 Re1 b1N+ Kb2 Na3 Ra4 Bb1 Bc4 Be3 Rd1 Ba7 Bg8 Bb8 Bg2 Ne2 Rhe1 Ng1 Bf1 N3c4+
3B1bk1/n2P2bn/rp3q1P/1R3rpB/1Q1K1NB1/1b2Q2b/1P1NQQ2/2q4Q w - - 0 1 illegal: No proof kernel
r1N2qBR/2B1Npk1/n7/2Pbq1p1/Nb2N3/2P1bn1r/Q3NP2/1bK1QQ2 w - - 0 1 legal: proof: d4 b5 g4 c5 dxc5 e5 b4 h5 gxh5 Qg5 a4 Qh6 axb5 Qb6 Ra6 Qc7 Rd6 Qd8 Rd4 exd4 Kd2 d5 h4 a5 e4 g5 b6 a4 h6 d3 h7 a3 e5 d4 b7 a2 h5 a1B h6 Qd7 e6 Qc7 e7 Nc6 b8N Ba6 b5 Ne5 c3 Ra7 b6 Nf6 b7 Rg8 h8Q Nfd7 h7 Bg7 Qe1 Bc4 Nc6 Ra8 b8N Bb2 Ne2 Bd5 Bh3 Qd6 Bf5 Ba3 Na7 Qf6 Nc8 Bb4 Qf1 Nf3+ Kd1 Qe6 Nd2 Qe5 Ne4 d2 Kc2 d1Q+ Kb1 Qa4 Bf4 d3 Kc1 Rf8 Qg8 Qa6 h8N Qh6 Bh7 Qhd6 Ng6 d2+ Kc2 d1B+ Kc1 Bc2 Rh6 Nf6 Nd7 Bb1 Ndb6 Nd7 Na4 Nb8 Qh8 Na6 Bg8 Qee6 Rh4 Bd4 Bg3 Qd8 Bc7 Qe5 Qf6 Qdd6 Qf4 Qd8 Qd2 Qdd6 Qa2 Qd8 Bh7 Rh8 Bg8 Rh5 Rh2 Rh3 Rh1 Kd7 Rh2 Ke6 e8Q+ Kf5 Rh1 Qdd6 Rh2 Qf8 Nge7+ Ke6 Ned6 Kf6 Ne4+ Kg7 Rh1 Rg3 Rh8 Rh3 Qb5 Bd3 Qe1 Bb1 Qd3 Qh2 Qdd1 Qe5 Qf1 Be3+ Qdd2 Bd4 Qde1 Be3+
qNb3r1/3Qp1NB/5bQN/1b2P2Q/R1rp1N1r/5q1n/2qPP3/2B1kNK1 w - - 0 1 legal: proof: g4 h5 gxh5 b5 a4 c5 axb5 Nc6 b6 Nb8 f4 Ba6 b4 Bb7 b5 Nc6 Ra4 Ne5 fxe5 Bc8 Rb4 cxb4 Kf2 g5 c4 f5 h4 Kf7 h6 Ke6 h7 a5 b7 d5 b8Q g4 h5 d4 h6 a4 c5 f4 c6 Kf5 b6 f3 b7 Kf4 c7 a3 Rh5 b3 Rh3 b2 Qa7 a2 b8N a1Q Nc3 b1B Qc2 Bg7 Nd1 Qa4 Qg6 Bf6 Ne3 Qc2 Bg2 g3+ Kf1 f2 Be4 Qf8 Kg2 Ba2 Nf1 Bc4 Qa4 Ra6 Qd7 Bb5 Kh1 g2+ Kh2 Bg7 Ra3 Bf6 Ra4 Rc6 Bd3 Rc4 Bf5 Bca6 c8N Bb7 Nd6 Bc8 Be4 Qe8 Nf5 Qd8 N1e3 f1Q Ng7 Qf3 Nf1 Qa5 Bf5 Qaa8 Bd3 Bh4 Bf5 Nf6 Be4 Rg8 h8N Nh7 Nf7 Ng5 h7 Nh3 h8Q Bg5 Qhh5 Bf6 Nh6 Rh8 Qge8 Rg8 Ngf5 Rg4 Ng7 Rh4 Bh7 Qg4 Nf3 g1R Ng5 Qgf3 Qeg6 Rg3 Ne3 Rg2+ Kh1 Kg3 N5e6+ Kf2 Nf1 Ke1 Nf4 Rg5+ Kh2 Bca6 Ngf5 Rc8 Qf7 Rgg8 Qfg6 Rc4 Ng7 Ng5+ Kg1 Bb7 Qd8 Bc8 Qd7 Nh3+
Qb2Q2N/1N1prBr1/2P2n2/B1pqN2K/3PbN2/1BP1bN2/1R6/b2b1q1k w - - 0 1 legal: proof: e4 a5 a4 f5 exf5 c5 b4 h5 g4 Nf6 gxh5 Ng8 b5 Nc6 bxc6 Rb8 Ra2 Ra8 Rb2 Qb6 Rb5 Qd8 Rb4 axb4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 d4+ Ke4 h4 e5 f4 b5 h6 g5 a5 b3 f6 b4 f5 b2 h5 b3 h7 Qb6 h6 Qb5 a6 Bd6 a7 Rb8 a8B Qb7 f7 Qc7 f8N Qb6 f6 Ba6 f7 Be2+ Nf3 Re8 Kh5 g4 Bd2 g3 Bb7 g2 Na3 b1Q Ng6 g1B f8Q b2 Qe1 Re7 Nb5 Bb8 Ba5 Be3 Rh2 Bd1 Bc4 Qa2 Bb3 b1B Qe8 Qa6 Nf4 Rg7 Qb4 Re7 Qa4 Nf6+ Kg6 Rf8 h8N Rff7 h7 Rg7+ Kh6 Qa1 Ng6 Qa2 Bf7 Qe6 h8N Qd5 Na7 Qf1 Nc8 Kf5 Rd2 Kg4 Ba6 Kg3 Nd6 e4 Be2 Kf2 Nge5 Kg3 Nb7 Kf2 Nh2 Kg1 Bc4 Kh1 Qa3 Bf2 Re2 e3 Bb3 Bg1 Rd2 e2 Nhf3 e1B Qa1 Be3 c3 Be4 Rb2 B1d2 Bb6 Bc1 Qa8 Re6 Ba5 Re7 Rd2 Bb2 Rc2 Ng8+ Kh5 Ba1 Rb2 Nf6+
5N2/pP1N2nb/Qb2QRp1/R4b1k/1N2Qq2/K3r1P1/Pb4br/qB1N2N1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 f6 cxb5 Kf7 e4 Ba6 e6+ Kg6 e5 Qe8 e7 Bc8 e6 Qd8 h4 Nc6 Bf4 Ne5 h5+ Kf5 Bh2 Ng6 Be5 fxe5 Qd3+ Kf6 Qd1 Nf4 h6 g6 Qd2 Nh5 Qd1 Ng7 hxg7 Bb7 Ne2 Ba6 Ng1 Bc8 Kd2 Kg5 Kc3 h5 Kb4 d5 b3 c5+ Ka4 e4 e8N e3 b4 d4 e7 d3 b6 c4 b7 h4 b8N e2 f4+ Kh5 b5 h3 g3 d2 b6 c3 b7 c2 f5 c1Q f6 h2 f7 Bf5 Nc3 Qc7 Nd7 Nf6 g8Q Qf4+ Kb3 Rh6 Nc7 Ne8 Na6 Ng7 e8Q Bc5 f8N Bb6 Qe4 Re8 Qge6 Rh8 Qdc2 e1B Bd3 d1B Nb4 Be2 Nd1 Bc3 Rb1 Rh7 Rb2 Qa1 Ka3 Bf1 Qa4 Bg2 Bb1 Rh6 Ne2 Re7 Rf1 h1B Qa6 Re8 Q4c4 Bd5 Rf2 Bhg2 Ng1 Rh8 Qee4 Bg8 Qce6 Rh6 Rbd2 Bh7 Rd5 Re7 Ra5 Re8 Qf7 Re7 Qec4 Re3 Qfe6 Kg5 Qce4 Rh2 Rd2 Kh5 Rd6 Rd3 Q6d5 Rf3 Rf6 Re3 Qde6 Bb2+
B1N3QN/2k2rqK/p3nB1N/1b3R1p/1r1p1r2/P2QQ2P/Q2n2Pn/b2Q4 w - - 0 2 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 Qe7 Qd2 Qf6 Qd1 Qd8 Kf2 h5 Kg3 b5 Kf4 d5 e4 Kd7 Kf5 f6 Kg6 d4 c4 b4 h3 b3 e6+ Kc7 c6 f5 e7 f4 e8Q b2 c5 f3 e5 f2 e6 Na6 e7 Nh6 Ne2 Bg7 Qf7 Rf8 e8Q+ Qe7 Ng3 Bf6 Bc4 f1R Nf5 Nb4 Bd5 Nd3 Nc3 b1N Ne4 Bg7 Ned6 Be6 Kh7 Ng8 g6 Nh6 Bg5 Rg8 Bf6 Bf8 g7 Rf4 Rf1 Ng4 Nh6 Rd8 a3 Nd2 Rc1 a6 Be4 Bc8 Qa2 Bb7 Ndf7 Qd6 Nh8 Rb8 Bf3 Bc8 Qe3 Nh2 Rb1 Bd7 Rb7+ Kc8 c7 Bb5 Bd5 Be7 Bf3 Rf8 g8Q Kd7 c8N+ Qc7 Qg7 Rf7 c6+ Kd8 Ra7 Nc5 Qd3 Qe5 c7+ Kd7 Bb7 Ne6 Ba8 Bb4 Qe3 Bc3 Rf3 Rh4 Rf5 Qg3 Rb7 Kc6 Qd3 Ba1 Qe3 Rf8 Qg6 Rf4 Qg8 Nc5 Qgb3 Ne6 Qbd3 Kd7 Nb6+ Kc6 c8Q+ Kd6 Rg7 Rf7 Qg8 Kc7 Qa4 Be8 Nc8 Rb4 Q4b3 Bb5 Qd1 Qxg7+
q1bB1R1Q/b2RP3/2NB1RR1/1n1r4/K3pnQ1/1r1pR1n1/P3Pkp1/1r1B4 w - - 0 1 illegal: No proof kernel
3QqK1b/3bNnpk/N2PQ3/p3p3/n1R1bN2/1rn3BN/PrN3P1/B4B2 w - - 1 2 illegal: Other
B1Q5/K1RBpp2/1N2B1r1/kn3Q1P/B3bRQP/1n1r1P1q/1B5p/n1b4r w - - 0 1 illegal: No possible last move, all moves rejected
nN3N1R/q1p2PQN/1B1n1Pbp/1r1q2NP/1Q6/3k2Kp/2qbN3/1B3rB1 w - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 f5 e4 d4 exf5 d3 h5 Qd7 Rh4 gxh4 cxd3 Na6 d4 Nb8 d5 Bb7 Ra3 Ba6 Rh3 Qd8 Rh1 Bc8 g4 Kf7 f4 Kf6 Kf2 a5 d4 e5 g5+ Kg7 g6 Kf6 b6 h3 b7 a4 b5 a3 d6 a2 d5 a1Q d7 h6 d6 e4 g7 e3+ Kg3 e2 b6 Qd4 Qe1 Qc4 Nc3 Qb3 Be3 Ra1 Ne4+ Kf7 f6 Ke6 f5+ Ke5 f7 Qe7 d8Q Qb5 d7 Ra6 Qb4 Qe6 Ng5 Ne7 g8N Qa2 Nf6 Qbd5 Nfh7 Qc2 f6 e1Q+ Bf2 Qec1 Bd3 Ra1 Ne2 Qa3 Re1 Qa7 Bg1 Rg8 Rd1 Ra5 Qe8 Rb5 d8N Bf5 Ne6 Nd7 b8N Bg6 b7 Nc8 Qd8 Be7 Qf8 Nd6 Qg7 Nb6 Nef8 Na8 Ra1 Nc4 Ra4 Bc5 Ra6 Be3 Rd6 Bd2 Rd8 Nd6 Be4 Qcc6 Bb1 Qc1 Na6 Qc2 b8B Qac5 Ba7 Qcd4 Nf3+ Ke4 Nb8 Kd3 Nfg5 Qa1 Bab6 Qa7 Nfd7 Re8 Rc8 Re4 Rh8 Rf4 Ndf8 Rf1
5N1b/Q3R1q1/PQ1N1bKN/6N1/4ppb1/Q3BPp1/1n4P1/1qrNkBnr w - - 1 2 illegal: No possible last move, all moves rejected
1br1QRNq/1b1NpKB1/4N2Q/k3NPr1/3bp3/3nPN1Q/P1R2q1p/2n5 w - - 0 1 legal: proof: h4 d5 c4 f5 cxd5 a5 b4 g5 bxa5 Na6 hxg5 Rb8 e3 Ra8 Bd3 Nb8 Be4 fxe4 f4 Kd7 Kf2 b5 Kg3 c5 Kg4 Kc7+ Kh5 b4 g4 b3 d4 b2 f5 c4 a6 Kb6 g6 h6 g7 c3 Kg6 h5 g5 c2 d6 h4 d5 h3 d7 Qc7 d8Q Kb5 a7 Kb4 d6 Na6 d7 Ka5 Qf1 Bb7 Qe8 Rh4 d8N Qc6+ Kf7 Nc5 g6 Rc8 a8N Nb3 Nd2 b1Q Ne6 Nf6 g8Q Qb2 g7 Rh5 Nb6 Nd5 Nd7 Nb4 Qh7 Nd3 Rb1 Qbc3 Rb2 Qc7 Qg2 Qg3 Ngf3 Qf2 Nc4+ Kb4 g8N Bg7 Nh6 Be5 Rg1 h2 Qh3 Bd6 Rg8 Bb8 Rf8 Qh8 Ng8 Rg5 Q7h6 Ka4 Bd2 c1B Rc2 Bb2 Bc3 Nbc1 Bg7 Bd4 Nce5 Ka5
kN2BB2/p1pb4/BqP5/4r2q/1r1NPQ1P/2b5/npb1B2n/RK2QBQ1 w - - 0 1 illegal: No proof kernel
3n2Qq/6p1/1K1rNN1Q/1NBq3B/pp1n1PrQ/1P2kNNb/2n3Pb/3R4 w - - 1 2 illegal: No proof kernel
1Qb2B2/nrQ3K1/p7/P4Bp1/1Bb2qN1/2prB1PP/3nRR2/kB3rqQ w - - 0 2 legal: proof: e4 b5 c4 e5 cxb5 Ke7 d4 Na6 dxe5 Nc5 f4 Rb8 e6 Kf6 e7 Ra8 e5+ Ke6 Qe2 Na6 Qd1 Kf5 e6 Nb8 Nc3 Kg6 Nb1 Kf6 g3 h5 Qd3 h4 Qd1 g6 Na3 h3 Nc2 Bh6 Ne3 Kg7 Ng2 hxg2 Qa4 Bg5 Qb3 Bf6 Qd1 Be5 fxe5 Rh7 Bd3 Rh5 Bf1 Rh8 Kd2 f5 Ke3 c5 Kf4 d5 Kg5 c4 b4 d4 a4 d3 h3 c3 b6 f4 a5 d2 b7 a6 b5 f3 b6 f2 Ra2 Qd4 e8B Qc5 e7 Qc4 e6 Qe2 Bd7 Ra7 e8Q Nh6 e7 Rg8 Bf5 Qe5 Rh2 Nc6 b8B Rb7 Qd8 Ng4 e8Q Na7 Bd6 Nf6 Nf3 g1Q Bd3 f1B Bb4 Rf8 Bb1 Bc4 Rf2 Qb8 Qc6 Kf7 Kh6 g5 Nh2 Qf4 Ng4 Ne4 Qb3 d1R Qdc7+ Rd7 Be3 Nd2 Re2 Re8 Qh1 Rf8 Bg6+ Ke6 Qb2 Rd4 Kg7 Rd3 Rf2 Qe4 Bf5+ Kd5 Qb3 Nf1 Rae2 Nd2 Bd7 Rf3 Bf5 Qf4 Qf7+ Kc6 Qc7+ Kb5 Qb2 Ka4 Bf8 Qd6 Qb5+ Ka3 Qe8 Rb8 b7 Kb2 Qb5+ Ka1 Qb4 Ra8 b8B Qf4 Qbb7 Nb5 Bba7 Rb8 Bac5 Na7 Qb5 Rb6 Bb4 Rb7 Qe8 B8e6 Qb8 Bc8 Rh2 Rf1 Rhg2 Rd4 Rgf2 Rd3
2R3rB/p2pN1rN/1NQn4/1n3Bpk/4BP2/BQq1P1Pb/3bq3/4B1Kq w - - 0 1 illegal: No proof kernel
6Rr/NpR1K1p1/P2pn1P1/R5Q1/1NQP2n1/1qbq3n/r1b3R1/B2kN1R1 w - - 1 2 legal: proof: e4 f5 exf5 h5 b4 a5 bxa5 c6 Bb5 cxb5 Qg4 h4 Qxh4 Ra7 Qh7 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 a4 Kd4 h4 e5 c4 Kd3 f4 Kc2 d4 e4 c5 d6 a6 e3 c6 b4 h5 e2 a7 e1N c7 b3 a5 b2 h6 Na6 Na3+ Kd1 Ra2 b1Q Qg6 Qc2 h7 Qb1 Qg5 Bd7 c8N Nc5 Nc2 Qb5 Nb4 Qdb6 Bb2 Qe2+ Nf3 Qbb5 Rg1 Qe5 Ba1 Ne6 f6 Qf1 f5 Qf2 f7 Ba4 f6 Qee2 Kf5 Bb3 g4 Be7 f8Q Qb2 f7 Nf6 Qg8 Qc3 f8R Nf4 Qc4 N4h5 Ke6 Bd8 Rg8 Qf1 Rag2 Nd3 Ne1 Bc2 Kf7 Nc5 a6 Ba5 Ke7 Rb8 a8R Ne6 Na7 Rf8 Re8 Qb3 Rc8 Nhf4 Rc7 Nh3 Qh5 Kc1 g5 Ng4 g6 Kd1 Qg5 Rf3 Rf8 Rf2 Rf5 Qfd3 Re5 Ra8 h8R Re2 Rg8 Rd8 Nbc6 Bc3 Ra5 Rc8 Nb4 Ra8 Rf8 Rd8 Rf7 Rh8 Rf8 Bb1 Rb8 Ra2 Rg8 Bc2
2QRr1N1/N7/1Q1nrqb1/1N2R2R/1p1pq1PB/2b3n1/1Pk1pr1P/K3R2R w - - 0 1 illegal: No proof kernel
K1Nq1b1Q/1R2pB2/pnkN4/4r1pN/1qb4n/P2PQ1P1/1r1n3B/NQ1N4 w - - 1 2 legal: proof: c4 c5 b4 f5 bxc5 d5 cxd5 h5 e4 Qd6 exf5 Qd8 g3 h4 f3 h3 Na3 Nh6 Rb1 Nc6 Rb4 Ng8 Re4 Nb8 Re2 Rh7 Rf2 Rh8 Rg2 hxg2 Ke2 Kd7 Ke3 b5 Kd4 g5 h4 a6 f6 b4 h5 b3 f4 b2 h6 b1Q h7 Qg6 d6 Qf7 c6+ Ke8 Kc5 Qg7 c7 Kd7 Kb6 Nc6 f5 Qe8 f7 Na5 f6 Qg6 Nh3 g1N Nf2 Qg7 Nc2 Qd8 a3 Nh3 Na1 Bb7 Bc4 Bg2 d3 Bf3 Be3 Rc8 Ka7 Bd5 Qb1 Nh6 Nd1 Ng8 Bg1 Ba8 Bh2 Kc6 d7 Rb8 c8N Nh6 Ba2 Rg8 h8Q Nb3 Re1 Kc7 Re2 Bh1 Rb2 Nd2 Rb7+ Kc6 Be6 Nf5 Bc4 Qc7 Bb3 Bd5 d8N+ Kc5 Bc4 Nf4 Bb3 Qh6 Bc4 Rg6 Bb3 Bg7 f8Q Qh4 Nf7 Kc6 Nfd6 Bc4 f7 Re6 Qfg8 Bh6 f8N Nd5 Ng6 Bf8 Nf4 Re5 Nh5 Nb6 Qe6 Qd8 Ba2 Qg4 Bb3 Nh4 Ba2 Ra5 Qe3 Re5 Bb3 Bb5 Bf7 Qb4 Nf6 Bc4 Nh5 Nd5 Rd7 Rb5 Rb7 Nb6 Kb8 Qc3 Ka7 Rb2 Kb8 Qb4 Ka7 Na4 Ka8 Nb6+
1BrKn1N1/QRppN2N/n3r1Q1/k2qb2b/b1PpN3/6R1/1bR2PP1/4N3 w - - 0 1 illegal: No possible last move
1B1B3Q/2bPQKRB/Q1Np2B1/1q1P2p1/4q1Pn/4nR2/2b1p1b1/B2qr1k1 w - - 0 1 legal: proof: c4 b5 e4 a5 b4 f5 exf5 e6 bxa5 d6 c5 Ra6 c6 Rb6 Na3 Nd7 Qg4 Qe7 Ke2 Rb8 Qd4 Kf7 Bb2 Ba6 Nc2 Rd8 Qa4 Nb8 Ne3 Rd7 Bc1 Ke8 Nc4 Bc8 Qd1 Qd8 Na3 Rf7 Ke1 Rf6 Nb1 Rg6 Nc3 Ke7 Nb1 Rf6 Bc4 Rf7 Bd3 Ke8 Bf1 Rd7 cxd7+ Ke7 g4 h5 Nc3 h4 Nce2 Qe8 Ng3 hxg3 Bg2 Qd8 Bh3 Kf7 Bf1 Ke7 Ke2 Kf6 Ke3 Kg5 Ke4 Kh4 f4 c5 a4 g5 d4 c4 f6 b4 f5 c3 a6 c2 a5 b3 a7 e5 Kd5 g2 Ke6 b2 a8B b1B f7 e4 a6 e3 f6 Qc7 a7 Rh5 Ra3 Rh8 Bd3 e2 Nf3+ Kh3 Ne5 g1Q Bh7+ Qg3 Qd3 Na6 Bae4 Qa5 a8Q Qb6 d5 Qb2 Nc6 Be7 f8Q Qb5 f7 Nh6 Be3 c1Q Ba7 Nf5 Bb8 Bd8 Qe7 Nh4 f8B Nb4 Beg6 Kg2 Kf7 Bc7 Qc3 Bb7 Qa6 Nc2 Qcf6 Qf2 Rf3 Qd1 h3 Qe3 Qb2 Rg8 Qh8 Qe4 Bg7 Bc8 Ba1 Ne3 Rhf1 Bc2 Bf6 Nhf5 h4 Bb7 h5 Nh4 h6 Rc8 Qee8 Kh2 Bd8 Kg2 R1f2+ Kh1 Qe7 Kg1 Qa3 Ba6 Qa4 Qb6 Rh2 Bb5 Qa6 Bbd3 Nd4 Qe1 Qhe8 Qe5 Rf5 Bb1 Bg8 Qb5 h7 Bb6 h8B Be4 Rff2 Bg2 Rf6 Qe4 Rf3 Nhf5 Rh7 Rc1 Nc6 Bc2 Ba1 Bc7 Rg7 Nh4 B8h7 Qd2 Qg8 Re1 Qh8 Qd1
2N5/QRb1q2b/3N2Pk/2p2K2/r1PN1p2/bn2pPBn/qR2R1bN/QN6 w - - 0 1 legal: proof: h4 b5 e4 g5 a4 d5 axb5 g4 exd5 Be6 g3 Bf5 Bh3 Bc8 h5 gxh3 g4 a5 g5 Ra7 Qf3 Ra6 Qd1 Rg6 hxg6 Bb7 Ne2 Ba6 Ng1 Bc8 Ke2 h5 Kf3 e5 Ke4 c5 b4 a4 c4 f6 d4 h4 d6 h2 b6 a3 b7 a2 d7+ Ke7 b5 h3 b6 Rh6 d5 Nc6 b8R Nd4 b7 Nb3 g7 Kf7 d6 Kg6 Nf3 Ne7 g8N Nd5 Re1 h1B Bf4 h2 Bg3 Nf4 Re2 Qe7 d8N Bg2 d7 h1Q Ne6 Qh2 d8N Nh3 Nf7 Kh5 Kf5 e4 Nd6 e3 Na3 Rh8 Rb1 a1B Rbb2 Rh6 Nb1 Rg6 Ke4 f5+ Ke5 f4 Kf5 Bd7 Qg1 Bc6 Ned4 Bg7 Qf1 Be5 Qe1 Rg7 g6 Bd5 Rd8 Rh7 b8Q Rh8 Rd7 Rh7 N6b5 Bc7 Qa7 Rh8 Nd6 Rh7 Nh6 Bg8 Nhf7 Rg7 Qc1 Bh7 Nc8 Rg8 Nfd6 Kh6 Rbc2 Bc3 Rb2 Bb4 Qg1 Ba3 Qe1 Qh1 Nh2 Qg1 f3 Qf2 Nb6 Ra8 Nbc8 Bd8 Rb7 Bc7 Qb8 Ra6 Qa7 Ra5 Nd2 Ra4 Qa1 Qe1 Nb1 Qc3 Rbc2 Qb2 Rcd2 Qa2 Rc2 Na5 Rcb2 Nb3
2QB3k/3bP3/3BR2b/p1rq1N1Q/1pr2r2/3qpQ1R/1Pn1PQ2/1B2rQ1K w - - 0 1 illegal: No proof kernel
6Br/rQn1b3/bp1Kn2P/2p2QN1/p4p2/N1P3N1/QN3RPR/qbN3k1 w - - 0 1 illegal: No proof kernel
R1bQ4/Qp5N/6Bp/p1rn2QR/2P2nnQ/PPp4Q/qk3N1r/1Nb2K2 w - - 1 2 legal: proof: e4 c5 c4 g5 h4 f5 exf5 d5 hxg5 d4 d3 Qd7 Bd2 Qc7 Bc3 dxc3 d4 Qa5 dxc5 Qd8 g4 Kf7 f4 e5 c6 a6 c7 h6 f6 Ke6 f7 e4 g6 e3 g5 e2 b3 Nd7 g7 Nc5 f5+ Ke5 g6 Qg5 f6 Qh5 Qd8 Bd7 c8Q Kd4 Nh3 Ne7 g8Q Ne6 g7 Qa5 Nf2 Nd5 Rh5 Ba3 f8Q Bc1 f7 Nef4 Qfe7 Qa4 Qb8 Bc8 Qh4 Kc5 f8N Kb4 Qe6 a5 Qa7 Rg8 Nh7 Re8 g8Q Rf8 Nd2 Ka3 Qeh3 Kb2 Nb1 Rf6 Qgg3 Rc6 Bg2 Rc5 Be4 Rb8 Bg6 Qa3 Nh1 Qa4 Kf2 e1N Kf1 Nf3 Qgg5 Ne5 Nf2 Ng4 Na3 Be3 Re1 Bc1 Nb1 Ra8 Re8 Qa3 Qab6 Ra6 Qa7 Re6 Rf8 Re2 Rh8 Ka1 Rf8 Qb2 a3 Qa2 Qd6 Kb2 Qdb6 Bd7 Ra8 Bc8 Qbd8 Rc2 Nh1 Rg2 Nf2 Rh2
2k5/Qpbb1B2/4rBRp/1p2B3/2rn1Q2/1p1Q1NnP/2B1PqPb/1BKN4 w - - 0 1 illegal: Other
Q1r2Q1R/1K2bpBp/n6n/P4k2/1NQ1rP1P/Q1rQqp2/RNp1N1b1/8 w - - 1 2 legal: proof: c4 b5 cxb5 e5 b4 g5 f4 a5 bxa5 e4 e3 g4 Be2 Ra6 Bf3 gxf3 d3 Bb7 dxe4 Ra8 e5 Bc8 Kd2 Ke7 Kc3 Ke6 Kc4 c5 h4 d6 g4 Ra7 a4 Nf6 a6 Nfd7 e4 Nc6 g5 Bb7 b6 d5+ Kb5 c4 a5 c3 g6 d4 g7 d3 g8Q d2 Bb2 c2 Nc3 Qc8 Nge2 Nd8 Re1 Qa8 Na4 Nb8 Ra2 Bg7 Qf8 Bc8 b7 Nd7 b8N Rg8 Nc6 Bf6 Qa3 Rg6 Nb4 Rc7 a7 Nb7 Ka6 Qb8 a8Q Be7 Ba1 Rf6 Nb2 Rc3 Rg1 Rf5 Rg8 Nf6 Rh8 Ng4 Qf1 d1R Kb6 Kd7 e6+ Kd6 Qa6 Rd4 Qd3 Nh6 Ka6 Rfc5 e5+ Kc7 Qc4 Re4 Qd1 Bd7 Qdd3 Qg8 Ka7 Qg1 Ka6 Qe3 Ka7 Bg5 e7 Bh3 e8Q Bg2 e6 Be7 Qf8 Rc6+ Ka8 Nc5 Ka7 Na6+ Ka8 Bd6 e7 Kd7 Kb7 Rc8 Nd5 Ke6 e8Q+ Kf5 Nb4 Rc5 Qa8 Be7 Na4 Rb3 Bg7 Rc8 Nb2 Rc3
3b1K1N/1krnr1p1/1p2qPPB/2rb4/1PB1Bp2/1Rb2p1B/5RQ1/1QB1Q3 w - - 0 1 illegal: No proof kernel
q4NnQ/p1KN1Nr1/R1pp4/PNbPr3/2R2qb1/p6N/Pkr1QBQ1/8 w - - 1 2 illegal: No proof kernel
5bnr/6p1/7k/2Q1Qbb1/NR1rpp1K/p1BNQ1n1/R1P2PPN/QQ5r w - - 0 1 illegal: No possible last move, all moves rejected
R4Q2/3p1qpk/1Kn2Q2/2Q2pp1/5P2/1b1Pn3/BQPb1Np1/bRNR2Qr w - - 0 1 illegal: Other
4r2k/7B/1BrB4/p1B1p3/NPN2qBB/3b1nbK/4PqP1/RQ2bb1B w - - 0 1 illegal: Other
K1NnQ3/NP5n/1q1N2NN/1nr1qN1k/4B2p/3p2b1/1RPp2NP/4q1B1 w - - 0 1 legal: proof: b4 e5 e4 c5 f4 b5 a4 c4 axb5 c3 dxc3 Qb6 c4 Qd4 c5 Bb7 Ra3 Ba6 Rd3 Bc8 Rd2 Qa1 Rd4 exd4 e5 Qa5 e6 Qd8 Qf3 a5 Qc3 Ra6 Qd3 Rd6 Qd1 Rd5 Kd2 Re5 fxe5 f5 Ke1 Bb7 g4 f4 Be2 Be4 Bf1 Bf5 gxf5 Qc7 Qf3 Qc8 Qd1 Qd8 Ke2 g5 Kd3 h5 Kc4 h4 Kd5 a4 f6 d3 b6 f3 e7 Kf7 e8N Kg6 e6 f2 f7 d6 b7 g4 c6 g3 b5 a3 e7 a2 b6 a1N c7 g2 c8N Qc7 Nf6 Qd8 e8N Qe7 Na3 Bg7 f8N+ Kf5 Nh3 g1Q Nc4 Qe1 Qh5+ Qg5 Ng6 Rh6 Ng4 Nb3 Nhf4 Be5 Ng2 Nd4 Be3 Nbc6 b8N Nd8 Nc6 d2 N6a7 Nb5 Be2 f1Q Bf3 Rh7 Bg1 Rc7 Qh8 Qf4 Be4+ Kg5 Nh6 Qf1f2 Nce3 Kh5 Nef5 Qg5 b7 Bg3 Qe5 Qb6 Qh8 Nc6 Ke6 d5 Ned6 d4 Kd5 Qa5 Kc5 Nf6 Qe8 Qb4+ Kb6 d3 Ka6 Nh7 Bb6 Qf6 Rg1 Na3 Nab5 Nd8 Ka7 Qd1 Ka8 Qe5 Nba7 Qdb1 Bc5 Qb6 Rc1 Qba1 Bg1 Rc5 Rb1 Nb5 Rb2 Qe1
1B2QBBr/4Bn1B/P3k3/1pBq2bN/P6r/1n1nnRpb/r3R1PK/5B2 w - - 0 1 illegal: No possible last move, all moves rejected
k4b2/7R/n3q2B/p1Rrpr1b/2R1r2R/RR2b2N/P1P1P1nN/b1R1K1Q1 w - - 0 2 legal: proof: g4 f5 gxf5 c5 b4 h5 bxc5 d6 cxd6 Qd7 Bh3 Qd8 Bg4 hxg4 h4 Kd7 f4 Kc6 d4 a5 d7 b5 h5 Kb7 f6 e5 f7 g5 h6 b4 f5 g3 d5 g4 h7 g2 f6 b3 d6 g3 Nh3 g1B Bh6 g2 Nd2 b2 Nf3 b1R Nh2 Qe8 d8R Bg4 d7 Rb4 Rc1 Ne7 Rc8 Bh5 d8R Ng6 Rd5 Bd4 Rc4 g1B Rdc5 Ba1 Qd4 Rg8 h8R Nf4 Rh7 Na6 Qf2 Rg3 Qf1 Be3 Qg1 Bg7 f8R Qe6 f7 Rd8 Re8 Rg5 f8R Rd5 Rb8+ Ka7 Rb6 Rf5 Rg8 Ra4 Rb3 Rb4 Rgc8 Ra4 R8c7+ Ka8 Ra3 Bf8 Rb7 Rb4 Rb6 Ra4 Rbb3 Rb4 Rcc3 Rbd4 R3c4 Re4 Nf3 Rdd4 Nhg5 Ng6 Rh4 Rd5 Nh3 Nf4 Nh2 Ng2+
1q5K/N1Q1B3/4p1nb/bp1r1BP1/rpPnn1R1/4PBB1/8/k1BB1bNB w - - 0 1 illegal: No proof kernel
8/b4PKN/1N1Qq3/2NQ4/bP3bBB/2B1b1Q1/2k1P1NR/2nr2nn w - - 0 1 legal: proof: c4 a5 a4 b5 axb5 d5 cxd5 h5 g4 a4 gxh5 a3 d4 e5 dxe5 f5 b4 Nf6 Rxa3 Ra7 Rg3 Ng8 Rg4 Ra1 Na3 Rb1 Nxb1 fxg4 Kd2 Ke7 Kc3 c5 h4 g5 f4 g3 h6 c4 Kd4 g2 e6 Kf6 f5 c3 e7 c2 e8N+ Kf7 Ke5 g4 f6 Kg6 b6 g3 h7 Bc5 b7 Qb6 d6 Qa6 d7 Qc6 d8Q Bb6 f7 Ba5 Q8d5 Na6 b8N Bh3 Na3 Qd7 Nf3 g1B Rh2 g2 Bg5 c1B Nc4 Ne7 Nf6 Rd8 h8Q Nc5 Ne1 Nb3 Nh7 Ba7 Nb6 g1N Na6 Be3 Ng2 Nf5 Nc5 Nc1 Qg8+ Kh5 Kf6 Kg4 h5 Ng3 h6 Qe6+ Kg7 Nh1 Bh4 Rd7 Na8 Bc7 Nb6 Bg3 Qd6 Bgf4 Q1d5 Rd8 Nf8 Rd7 h7 Rd8 h8B Rd7 Bd8 Kg3 Bg5 Kf2 Nh7 Bf5 Qgb8 Bc2 Bd8 Ba4 Bh4+ Bg3 Nf4+ Ke1 Bh3 Rd8 Bg4 Rd7 Nfd3+ Kd1 Nf4+ Kc2 Ng2 Be1 Qg3 B1d2 Qbd6 Bf4 Kf8 Bde3 Bc3 Re7 Kg7 Rc7 Ne4 Rc4 Nc5 Rd4 Qd7 Rd2 Q7d6 Rd1
r1r2r1k/1P4Nb/N2nQQn1/K3q2b/3B1QP1/6BP/R2QBrn1/6N1 w - - 0 1 legal: proof: a4 h5 b4 b5 e4 f5 exf5 d5 c4 a5 cxd5 g5 g4 Bh6 gxh5 g4 Ra3 g3 Rb3 g2 axb5 Nf6 b6 Ng8 b5 Bf4 Rb4 Bg3 fxg3 axb4 d4 Kf8 Kd2 Kg7 g4 c5 h6+ Kh7 f6 e5 f7 c4 f8Q e4 h3 b3 Kc3 b2 Kb4 c3 d6 e3 d5 c2 b7 e2 b6 e1N d7 Ra3 d6 Qe8 d8N Qf7 d7 Ra1 Be2 Qa2 Qdd6 Qe6 Nc3 b1B Ne4 Qe5 Qff6 Ra8 Bf4 c1R Nc5 Na6+ Ka5 Ne7 b8Q Rf8 b7 Bg6 Rh2 Bh5 Qde6 Ng6 Bg3 Rc4 Qc7 Rf4 Qcd6 Rf2 Qf4 Kh8 h7 Nc7+ Qa6 Kg7 h8B+ Kh7 Qef6 Ne8 Ne6 Nd6 d8Q Bd7 Ng7 Bf5 Qd7 Rac8 Qac4 Bd3 Qce6 Bf5 Nf3 g1R Qdd8 Rh1 Ng1 Ng2 Qdd7 Nf7 Qdd5 Nd6 Na6 Ra8 Nf3 Rc1 Ng1 Qe4 Qdd4 Rcc8 Qdd2 Qe5+ Qdd5 Qe4 Qfe7 Ne3 Bf3 Rf1 Ra2 Nh4 Qd2 Neg2 Be2 Rf2 Qeg5 Qe3 Ne8 Bb1 Bd4 Qe5+ Kb4 Bd3 Ng7 Kh8 Qgf6 Bh7 Ka4 Ng6 Kb4 Nb5 Ka5 Nd6+
4QNkB/b3r1N1/1q1n4/1rp5/R1rPQBQ1/1Pr2n2/4PN1n/Q2B3K w - - 0 1 legal: proof: b4 a5 bxa5 b5 f4 h5 g4 e5 fxe5 d5 gxh5 b4 c4 b3 a6 b2 cxd5 Bf5 Nh3 Bc2 Ng1 Bb3 axb3 Nh6 Ra4 Ng8 Rb4 Nd7 Rb8 Nxb8 Kf2 c5 Kg2 g5 d4 f5 h4 Kf7 a7 f4 h6 g4 d6 g3 e6+ Kf6 h5 Qc8 h7 Kg7 h6+ Kf6 d7 Bg7 d8N Qc6+ Nf3 Nd7 e7 Rb8 e8Q Rb5 a8Q Ne7 Nc3 b1R Ne6 Nf5 Nf8 Qb6 Ng5 Ne5 Qe4 Nd6 Nge6 f3+ Kg1 g2 Bf4 Rb2 Qa1 Rc2 Nd1 Rc3 Nf2 Ng4 Qh5 Nh2 Qg4 Rg8 h8Q Kf7 h7 Be5 Ng7 Rc4 Ng6 Re8 Nf8 Re7 Qg8+ Kf6 h8B Rc3 Qgh7 Kf7 Qhg6+ Kg8 Q6h5 Nc4 Qhg6 Bb8 Qe8 Ba7 Qgc8 Ng4 Qcd7 Nge5 Qg4 Nd6 Kh2 g1R Bh3 Re1 Rf1 Rc4 Kh1 Rec1 Rd1 R1c3 Rd2 Qc7 Ra2 Qc6 Ra4 Qb6 Nd1 f2 Bg2 f1N Nf2 Ne3 Qeb1 Ndf7 Be4 Nd6 Bc2 Nf1 Bd1 Nf3 Qe4 N1h2
1QK3B1/P7/2b1Pr2/R4Qrk/3nR1RP/3r1n1N/1N1b1Nb1/r1Q2Rqr w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 gxf5 d5 b4 h6 bxa5 d4 Ba3 d3 Be7 Kd7 Bg5 hxg5 cxd3 Ke8 d4 Qd6 d5 Qd8 Kf2 Kf7 Ke3 c5 Ke4 b5 h4 c4 d4 g6 a4 b4 f6 c3 d6 c2 Kd5 c1R e4 g4 a6 g3 d7 b3 a7 g2 a5 g5 a6 Kg6 Ke6 g4 f7 g3 d5 b2 d6 Rc3 Nd2 b1B Nh3 g1R Ra5 g2 Bc4 Bd3 Qc1 Rd1 Rf1 Bh6 f8Q g1R Qf5+ Kg7 Ba2 Nc6 Nc4 Nce7 Nb2 Re1 Nf2 Bb7 Bd5 Qb8 d8R Nc6 Kd7 Bb5 e6 Bd2 e5 Kh6 e7 Rg5 e8R Nge7 Bg8 Ng6 e6 Rcg3 Re7 Rd1 Rg7 Kh5 Rf8 Ra3 Re1 Rc3 Re4 Rh6 Rff7 Qe8+ Kc7 Rh1 d7 Rd3 d8N Nge5 Rf8 Re3 Nf7 Rd3 Rg6 Nf3 Rg7 Rb8 a8Q Rf6 a7 Ncd4 Rg6 Rd8 Qb8 B5c6 Rg7 Rd6 Rg6 Ba8 Rg7 Qe7+ Kc8 Rd7 Rg6 Qc5 Nh6 Rb7 Nfg4 Ne1 Rf7 Nb3 Qfe5 Rff5 Rf4 Qg1 Nc4 Bg2 Re4 Nd4 Rf8 Rb1 Nb2 Ra1 Nf7 Bc6 Rg7 Rg6 Ng5 Rh6 Nh3 Rg5 Rf1 Rf5 Ngf2 Nef3 Rgg4 Rg5 Qf5 Rf6
3N1nrb/2qQN3/BN5k/8/1nQ1P1qP/1B2KP2/2b1Q1qb/1RN1B1rq w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 e5 c4 h5 cxd5 f5 d4 h4 b4 f4 Ra3 h3 dxe5 Na6 Re3 fxe3 gxh3 Rh6 h4 Nb8 h5 Rh8 Ke2 Kf7 h4 c5 h6 Kg6 d6 a5 e6 c4 b6 a4 e7 a3 f3 c3 b7 c2 d7 a2 h7 a1B e8B+ Kh6 b5 g5 b6 g4 Nd2 g3 Bf7 g2 Ba3 c1Q Bb3 Nf6 Bb4 Rg8 h8Q+ Nh7 Qb2 Qcc7 Nc4 Nc6 b8N Bd6 b7 Bh2 Nb6 Nf8 Be1 Nb4 Nc6 Qg5 d8N Be6 b8Q Qg4 Qc8 Rg5 Qbd2 Bh8 Ne7 Ra1 Q2c1 Rg8 Qc4 Bd7 Qdc2 Ba4 Qd7 Rd1 Nh3 g1Q Nf2 Rc1 Nd3 Rb1 Nc1 Q1g2+ Kd1 e2+ Kd2 Ra1 Ke3 Rb1 Bc3 e1Q+ Q2e2 Qeg3 Be1 Q4h3 Qed1 Qgg4 Bd3 Ra1 Qe2 Rb1 Qc5 Ra1 Ba6 Rb1 Qcc4 Ra1 Ba2 Bc2 Bb3 Rb1 Rg1 Qh1 Rf1 Q3g2 Bg3 Rb2 Na2 Bd3 Rd1 Rc2 Rb1 Rc1 Bf2 Re1 Nc1 Rg1 Be1 Bc2
1K3R2/3Qb3/BnPNBPQ1/b3q2r/3B1Pnn/1q3RQn/1R5r/k1B1r3 w - - 0 1 legal: proof: g4 f5 gxf5 b5 f4 c5 d4 h6 dxc5 b4 Nd2 b3 Ndf3 Bb7 Ng5 Bf3 exf3 hxg5 axb3 g4 b4 Nc6 b5 Nb8 Kf2 Kf7 Kg3 Kf6 b4 g5 c4 a5 h4 d5 c6 e5 c7 a4 c8B d4 b6 a3 b7 d3 c5 e4 h5 e3 b5 a2 c6 d2 h6 e2 b6 e1R h7 Ra5 Rh3 Qd3 Be6 Qd4 Ne2 Be7 Nc3 Qe5 Ba6 Nd7 b8Q Nh6 b7 Nb6 Rb1 a1B Nb5 Bc3 Nd6 Ra2 Rb2 Ba5 Qc2 d1Q Qc8 Qdd5 b8Q Qb3 Kg2 g3 Qd7 g4 Qb1 Rg8 Qbc7 Rg5 Qe4 Rh5 Qd3 Kg7 f6+ Kf8 f7 Kg7 f5 Kf6 h8R Qe3 f8B Ke5 Qb1 Kd4 f6 Kc3 Qg6 Qe5 f4 Kb4 Qa7 Ka3 Rg8 Na4 Qg1 Nb6 Kh1 g2+ Kh2 Bc3 Kg3 Ba5+ Qe3 g1N Kg2 Bd8 Rf3 g3 Be7 Ng4 Rf8 Ne2 Qf2 Nd4 Qg1 Nf5 Qh2 Rg5 Kh3 g2 Qg3 g1N+ Kg2 Bc7 Bd8 Rh5 Be7 Nc4 Bd8 Bb8 Bb6 Nh3 Bd4 Nb6 Rff2 Nge3+ Kf3 Bc7 Rf1 Bd8 Rff2 Be7 Rf1 Qeb5 Ke4 Nh4 Rf3 Qg5 Bc3 Ng4+ Kd4 Nd5 Kc5 Qe5 Bd4 Ka4 Rb1 Rh2 Rb2 Ka3 Bf1 Qbe3 Kb5 Qc3 Ka6 Nb6 Kb7 Qd3 Kb8 Qb3 Rb1+ Ka2 Rb2+ Ka1 Bfc4 Rc2 Ba6 Rh2
BbRR2Q1/1nq1NQrP/2N1r3/bKb3n1/3rQP1N/4r1qk/5P2/2RQ4 w - - 0 1 legal: proof: g4 f5 gxf5 b5 a4 d5 axb5 d4 b3 d3 Bb2 h6 Bf6 Qd6 Bg5 hxg5 cxd3 Qd8 d4 Be6 d5 Bf7 Bg2 Bh5 Bf1 Bf3 exf3 Rh6 Ra2 Rh4 Ra1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 a5 d4 e5 h4 c5 d6 a4 d5 e4 b4 g4 d7 g5 h5 e3 b6 e2 f4 e1B b7 a3 b5 g3 h6 g2 h7 g4 d6 g3 b6 a2 Qc1 Ra6 Na3 Ba5 Rh5 Qc7 d8N Nh6 d7 Nf7 Nc6 Ng5 d8R Nd7 Nf3 g1R b8Q g2 Kb5 c4 b7 c3 Qd1 c2 Nc4 c1R Qa8 Rc3 b8Q Nc5 Rc1 a1B Nh4 Nb7 N4e5 Re3 Ne7 Re6 N5c6 Be5 Be2 Rg8 Bf3 Rg7 Qba7 Rge1 Qad4 g1Q Qe4 Qg3 Qa7 Kf7 f6 Rd6 Qb8 Ke6 f7 Rd4 Rc8 Kf6 Qa8 Qd7 Bh1 Bb8 Qa7 Qc7 Bf3 Ne6 Rd5 Ng5 Rdd8 R1e2 Nef5 Bc5 f8Q+ Qf7 Qg8 Qc7 Ng2 Kg6 Nfe7+ Kh6 Nh4 Re1 Nhg6 R1e2 Bh1 Kh5 Nh4 Kg4 Bf3+ Kh3 Bh1 Be1 Qaa2 Beb4 Qaf7 Ba5 Qed3 Ree4 Na7 Re6 Bd5 R2e3 Qe4 Bcb6 Bc6 Nc5 Ba8 Nb7 Nac6 Bc5
1Q6/nP1N4/KBQR2r1/1n1B1b2/rqRBPb2/1n3P1k/1RR4r/2r3qQ w - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 f5 e4 e5 a4 d5 axb5 f4 cxd5 Bg4 Na3 Bc8 Nc4 Rh7 d4 Rh8 Ne3 fxe3 dxe5 Bh3 Bg2 Bg4 Bf1 Bc8 Ke2 Ke7 Kd3 g5 Kc4 a5 b4 c5 h4 a4 b6 g4 Kb5 c4 d6+ Ke6 h6 a3 h5 c3 b7 a2 h7 e2 d7 e1N h6 g3 Rb1 a1Q Rb2 g2 Be3 c2 Rh2 c1R Bb6 Na6 b8Q Qc7 d8R Ne7 Nf3 g1R Rd6+ Kf7 e6+ Kg6 Bc4 Nc5 Qc2 Nb7 Bd5 Ra4 Ne5+ Kg5 f3 Nc6 e7 Bf5 e8R Qe7 Rc8 Nba5 Ka6 Na7 Qc6 Nc2 b5 Na3 Rhc2 Kh4 Nd7 Kh3 Rc7 Rg2 Rc4 Rhg8 h8B Rh2 h7 Rg6 Bhd4 Bh6 h8Q Qf8 Bbc5 Qb1 b6 N3b5 b7 Qe7 Rc8 Qg5 Bb6 Qg1 Rd2 Qb4 Rb2 Kg3 Rcc2 Bf4 Qh6 Re2 Qh1 Rh2 Rc4 Kh3 Rg8 Rh6 Rgg2 Rg6 Rgc2 Nb3+
Q1n1rQN1/Kb1P4/6N1/RRRN3r/3bk3/Pr1RB3/2Pq3q/1qrQ1q2 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 h5 g4 c5 gxh5 f5 d4 Nc6 dxc5 d4 Bg2 Nb4 Bf3 Nd5 exd5 Ra6 Bg2 Ra8 Be4 fxe4 Kd2 Kd7 f4 b5 h4 e5 d6 Ke6 h6 Kf5 h5 g5 a6 d3 Kc3 g4 Kb4 g3 a7 g2 d7 d2 h7 e3 h6 e2 Nf3 e1Q Nh4+ Ke4 f5 g1R f6 Bb7 f7 Bg7 f8Q Bc6 Nc3+ Ke3 Ng6 e4 Rh5 Qb8 Ka5 b4 Ka6 b3 Ne7 b2 Ncd5+ Kd4 a3 e3 Rb1 e2 Rh3 Ke5 Rd3 Bb7+ Kb6 Bf6 c6 Ke4 c7 Rg3 c8R Qf1 Rc5 e1R Ra5 Qbf4 Rc5 Rd8 a8R Bd4 Ra5 Re8 Ka7 Rh3 Kb6 Qh2 Ka7 Nf6 Ng8 Rhe3 Qh5 d1Q Bd2 Rh3 Be3 Qdd2 Qd1 Rh5 Nge7 Rg8 h8N Rg3 h7 Ng8 Nhg6 Rf3 h8Q Rfh3 Nf5 Ne7 Nh6 Rf3 Ng8 Rg3 Ra1 b1Q Ra2 Rgh3 Rb2 Rg3 Rbb5 Rf3 Qe2 Rc1 Qe1 Rg3 Qd1 Nc8+ Kb8 Qde2 Qhf6 Qhg2 Qd8 Rgh3 Bf4 Qh2 Rdc3 Nd6 Ka7 Rd3 Be3 Qee1 Qa8 Qed2 Rc4 Rb3 Rc3 Qf3 Rd3 Qfh1 Bg5 Qf1 Be3 Nc8+
3rB1b1/q1QNqNkP/pb1N4/2Q2b2/1r1n1RK1/1QnP1PN1/4B3/2q1B3 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 b4 h5 Qxh5+ Kd7 f3 g4 Qh7 g3 Kd1 Ke8 Ra3 Be6 Re3 Bd7 Re2 Bc8 Rf2 gxf2 Ke2 e5 h4 c5 g4 c4 b6 a6 f6 c3 b5 c2 f7+ Ke7 d6+ Kf6 b7 e4 d3 e3 h5 Ne7 d7 Bg7 f8Q+ Ke6 b6 Nf5 h6 Ba1 g5 Qe8 d8N+ Ke5 g6 Qb5 g7 Qb2 g8B Qa3 Qc5+ Kf6 Rh4 Qa4 Rf4 Qd4 Nc3 Nc6 b8Q Be6 b7 Nb4 Qhc7 Nd5 Bd2 c1Q h7 Kg6 Bf7+ Kg7 Nb5 Bb2 Qb4 Qa7 Be1 Bd4 Nd6 Bb6 Be8+ Bf7 Qbc8 Rb8 Qb3 Rf8 Qc5 Be6 Q8c6 Bg8 N8f7 Rd8 Qc7 Rb8 Bg2 Nc3+ Kf1 Rd8 b8N Nd4 Nd7 Rb8 Bh3 e2+ Kg2 f1B+ Kg3 Rb7 Kg4 Bg2 Bg3 e1Q Ne2 Rb8 Bf2 Bf1 Ng3 Qe7 Be1 Rd8 Nh8 Rf5 Nhf7 Rh5 Qcc4 Rb5 Q4c5 Rb4 Bg2 Be2 Bf1 Bd1 Qe6 Ba4 Qb3 Bc6 Be2 Be4 Qa3 Bg6 Qb3 Bf5+
Q3Q3/Pq1n4/2b1Rr2/1Q2N2q/2BR1BP1/3b2Br/1Pp3R1/knKnB1b1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 hxg5 Nc6 c4 Nb8 cxd5 Bh6 Bc4 Bg7 Bf1 Bf8 a4 b5 a5 Kf7 Nc3 Ke8 Qb3 a6 Na4 bxa4 Qb7 Bd7 Qxa6 Be6 Qa7 Bc8 Kd1 Kd7 d4 Kd6 g4 h5 f4 e5 f6 c5 f5 c4 g6 a3 f7 c3 f6 e4 a6 h4 g7 a2 Be2 e3 Rh2 c2+ Ke1 h3 Qb7 Nh6 g8Q Qe8 a7 Bf5 Qb5 Nd7 Rg2 h2 Bc4 h1B Nf3 e2 Kd2 e1N Ne5 Bd3 Rb1 Be7 f8Q a1Q f7 Qa6 Ra1 Qc6 Ra6 Nf5 Rb6 Rh3 Ra6 Qd8 Qe8 Ne3 f8B Nd1 Bh6 Qb8 Bf4 Qb7 Bg3 Qcb6 Qh8 Rc8 Qhg8 Rc6 Qa8 Qc5 Qge8 Kc7 Rb6 Rf6 Re6 Bd8 Qb4 Qcb5 d6+ Kb6 d5 Be7 Qc5+ Ka5 Qc6 Kb4 Qb6 Nb8 d7 Bc5 d8R Bg1 d6 Ka4 d7 Qc5 Bb5+ Kb3 Ba6+ Ka2 Bc4+ Ka1 Qb5 Rf4 Rc8 Rf7 d8B Rf6 Ba5 Nd7 Rd8 Qcd5 Nf3 Qh5 Ne5 Nf8 Rd4 Nd7 Rh2 Bc6 Rg2 Nf2 Ke3 Nf3 Be1 Bde4 Ke2 Nd1 Be3 Nd2 Bef4 Nf2 Ke3 Nb1 Ke2 Bd3+ Ke3 Nc3 Kd2 Nfd1 Kc1 Nb1
k2nrn1N/n7/Q1R1nN2/3pP3/1nb5/2PPQ1rQ/1q3R1K/RBb2NN1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 f5 gxf5 c5 a4 c4 axb5 c3 bxc3 h6 c4 Bc5 Ba3 Bb6 Be7 Bc5 Bg5 Bf8 c5 hxg5 Kf2 a5 Kg3 d5 e4 Kd7 h4 Kc7 d3 Kb7 b6 a4 c3 a3 f6 g4 e6 g5 h5 a2 h6 Nc6 h7 Na7 e5 Nh6 e7 Nf7 e8Q Bh6 Be2 Rg8 Kh2 g3+ Kg2 g4 h8N Bc1 c6+ Kb8 b7 Qb6 Qc2 Qb2 Qd2 Nd8 Rh6 Rg7 Kh1 g2+ Kh2 Rg5 Qe6 g3+ Kh3 Rg6 f7 Rg7 f8R Rg8 Nf3 g1N+ Kg2 Bd7 Bd1 Ne2 Qe3 Nd4+ Bc2 Rg5 Kh1 g2+ Kh2 g1N Qh3 Ne6 Nbd2 Rg3 Bb1 Ne2 Ng1 N2d4 Rf2 Nf8 Nf1 N4e6 Rg6 Be8 Rf6 Bh5 Rh6 Bd1 Rf6 Bb3 Rg6 Kc7 b8N Bc4 Nd7 Rc8 Nf6 Kb8 c7+ Ka8 Ne8 Ndc6 Nf6 Re8 Rh6 Ncd8 c8Q+ Qb8 Qa6 Qb6 Bc2 Qb2 Rb1 a1N Rg6 Nb3 Ra1 Na5 Bb1 Nac6 Rg7 Qb3 Rc7 Nb4 Rc6 Qb2
1r5B/rB2k1Br/QQn1PRrb/R3b1Q1/q3Pp1B/4r3/1K2R1P1/N1n5 w - - 0 1 legal: proof: f4 d5 a4 g5 c4 e5 fxe5 b5 axb5 Nf6 h3 Bh6 Nc3 Bg4 hxg4 Qd6 cxd5 Bg7 Na4 Bf8 Nc5 Qd8 Ne6 Ng8 Nf4 gxf4 e4 h5 d4 c5 Kd2 a5 Kc2 f5 b4 a4 d6 h4 g5 h3 e6 c4 g6 a3 g7 f3 b6 f4 d5 c3 b7 h2 b5 f2 d7+ Ke7 b6 a2 d6+ Kf6 Qe2 Rh3 Nf3 Qe8 d8R Ne7 g8Q Rh4 d7 Nc8 Nd2 Ne7 Qa6 Ng6 Nb3 Rg4 Bb2 Nc6 b8Q Nge5 b7 Ra7 Bd3 Bh6 Rhe1 f1R Re2 Ke7 Qg5+ Kf8 Qc7 h1R b8B Rf3 Qcb6 Re3 Bb5 Nd3 Be5 Rhh4 Bh8 Nc1 Rc8 Rh2 d8B Qd7 Ra8 Qd4 Rc8 Qa4 Rc7 Rhh3 Rf7+ Ke8 Rf6 Rh1 Qd5 Rg6 Qg5 Rh2 Ba3 Rh5 Bf8 Rh4 Bfg7 Rhh3 Rb1 a1B Bc4 Bb2 Ra1 Rh2 Bd5 Rh4 Kd1 c2+ Kd2 Rhh3 Ra2 Be5 Na1 Nd3 Ra3 c1R Be7 Rc3 Bd8 Rb3 Kc2 Nc1 Be7 Nb8 Bb7 Nc6 Ra2 Qd4 Ra5 Qa4 Bb4 Rh1 Be1 Ke7 Bh4 Rbd3+ Kb1 Rd8 Qd3 Rg8 Qda6 Rb8 Bg3 Rh4 Qg4 Rh5 Bh4 Bg5 Qg3 Rh7 Qg4 Bh6 Qg5 Rc3 Kb2 Re3+
1b2qN2/b2B1R2/1nQ2q1b/1QRP1P2/2Pr1n1B/5p2/b1BR2Q1/r1kB1K2 w - - 0 1 illegal: No proof kernel
2qR1N1n/3NrQ1Q/2R1R1n1/pkP4r/1B2nPn1/4PN2/n6K/1Q1Nrb2 w - - 0 1 illegal: No possible last move
2k5/QR2b3/1QBBP3/1qbN4/1PQNp3/nBr3n1/q1bPn2N/Q3bK2 w - - 0 1 legal: proof: b4 b5 f4 d5 g4 c5 e4 h5 gxh5 e5 exd5 a5 a4 e4 axb5 c4 Ra3 Ra6 Rh3 Re6 Rb3 Re5 fxe5 cxb3 c4 Kd7 h4 f5 h6 g5 c5 f4 e6+ Kc7 h5 b2 h7 g4 b6+ Kb7 c6+ Ka8 d6 f3 d7 a4 h6 g3 c7 Kb7 Bc4 f2+ Kf1 a3 Qc2 a2 Nf3 a1B Nc3 b1N Bb2 Be7 Nd5 Nf6 Be5 Bd4 Bd6 Nc6 Nh2 Nh5 Bb3 Bc5 Qc4 Na3 Rg1 Qg8 d8Q Bd7 Rg2 Nd4 c8B+ Ka8 Rg1 Ba4 Bd7+ Kb7 Be8 Qf8 Bb5 Rg8 h8Q Ne2 h7 Qg7 Rh1 Qb2 Qg7 Qa2 h8Q Rf8 Qa1 Rf3 Qhd4 Rc3 Qe3 Bg5 Qe7+ Kc8 Qa7 Bh4 Bc6 Be7 Bd1 Bc2 b7+ Kd8 b8N Kc8 Rg1 Bd3 Bb3 Bc2 Kg2 f1Q+ Kh1 Qf7 Kg2 Qe8 Kf1 Qd7 Rg2 Qb7 Rf2 Qb5 Rf7 g2+ Ke1 g1B Kf1 Bh4 Rb7 Be1 Qf2 Bd4 Qe3 Bf6 Qeb6 Be3 Be8+ Bc5 Nc6 Bg5 Nd4 Be7 Bc6 Nhg3+
1Q2n2q/NRP5/nb3Pn1/2NQ4/r1pn2qQ/Q1K1r1R1/5kP1/2B2rNR w - - 0 1 legal: proof: e4 f5 exf5 g5 b4 c5 bxc5 g4 a4 g3 hxg3 Qc7 g4 Qa5 g5 Qd8 c4 d5 c6 b5 c5 b4 Bb5 Ba6 Bc4 Bb5 axb5 dxc4 d4 Kf7 Kd2 e5 f4 h5 b6 a5 c7 a4 c8N e4 b7 a3 g6+ Kf6 g7 b3 d5 b2 c6 e3+ Kc3 a2 c7 e2 d6 e1N d7 h4 Ne7 h3 Kd2 h2 Na3 b1Q Nc6 Bc5 Nf3 Na6 b8Q Rh3 Ng1 Nd3 Ne5 Re3 Kc3 Bb6 Nb5 Qe8 Qd2 Qg6 Qe1 Qg4 Na7 Qb5 d8R Qe8 Rb1 a1N Rb3 Nc2 Qh4+ Qg5 Rd5 Nd4 Rdb5 Qh5 Ra3 Qh8 Rb1 Nf2+ Nd3 Ne7 g8Q Ng6 Qd5 Ne4+ Kb2 Nd6 Nc5 Ne8 Rd3 Kg7 Kc3 Qgh5 f6+ Kh6 Qe1 Qe2 f5 Kg5 f7 Kg4 f8Q Kf4 f6 Qg4 Qf1+ Kg3 Qf4+ Kh4 Q4h6+ Kg3 Qe7 Kf2 Qhh5 Re2 Rg3 Re6 Qh4 Re1 Qee4 Re3+ Qd3 Re7 Kd2 Nf8 Nc8 Nb4 Qa3 Ra4 Na7 Ng6 Nf3 Na6 Rd1 h1R Kc3 Rhe1 Rb5 Ba5+ Rb4 R1e6 Rh1 Re1 Ng1 Rf1 Kb2 Re5 Rb7 Bb6 Kc3 Re3+
1nB1R1N1/1Pr1P1Bn/R1n3q1/5p1n/8/2Rb1R2/1QQbkPqQ/1b4KB w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 h4 c4 h3 gxh3 Na6 h4 Nb8 h5 Rh7 Bd2 Rh6 Bc1 Rh8 b4 a5 c5 a4 b6 Be7 c6 Ra7 b5 Rb7 cxb7 Bf8 e4 Ke7 h4 Ke6 h6 d5 h5 f5 h7 c5 h6 g5 Ke2 g4 Qc2 c4 Nc3 a3 Bg2 d4 Kf1 d3 Nd5 g3 Nf3 a2 Bb2 d2 Ne1 d1B Ne7 c3 Rh3 Qd3+ Kg1 Nf6 Ng8 Bb4 Bh1 g2 Rf3 Be2 Rc1 Bd7 Ra1 Bc6 Rc1 Qe3 Ba1 Bd3 Bb2 Na6 b8R a1N b7 Nb3 b6 Na5 Ra8 Nb8 Ra6 Bd5 Ba1 Ba2 Bb2 Bb1 Ba1 Nbd7 b8Q Nc6 b7 Qf4 Qc7 Qg3 Qb2 c2 Qc8 Kf7 e6+ Kg6 e5 Kh5 e7 Kg4 e8B Ndb8 e6 Bd2 e7 Nh5 Bd7 Nf6 Rd1 c1Q Qc7 Nh5 Bc8 Qc4 Rc1 Qe6 Rc3 Qg6 Qc2 Qg5 Qb6 Qg6 Re3 Kf4 Rf3+ Ke4 Qbb2 Kd4 Nf6 Rd8 h8R Rd7 h7 Rc7 Ng8 Q3g5 Kh2 g1N Ng2 Nh3 Nf6 Qe3 Re8 Ng5 h8Q Nh7 Ng8+ Ke4 Kg1 Qf4 Rh3 Qfg3 Qe5+ Kf3 Qf4+ Ke2 Qe5+ Qe3 Qh2 Qf4 Rf3 Qfg3 Qbc1 Ng5 Rb3 Qf7 Bg7 Nh7 Q1b2 Qfg6 Rc3 Qxg2+
1rNB2nR/N1B1b1P1/7b/nBPkbQN1/3r3p/n1K3NP/1Q5Q/1bb5 w - - 0 1 legal: proof: c4 b5 f4 d5 a4 g5 axb5 c5 bxc6 Qd7 fxg5 Kd8 b4 Ke8 b5 Qd8 d4 Bd7 e4 Bh6 c5 Bg7 e5 Qc7 Ra4 Bf8 Rc4 dxc4 d5 Qd6 exd6 Bc8 Kd2 h5 g4 e5 g6 a5 g5 f5 c7 Kd7 b6 e4 b7 a4 g7 e3+ Kc3 f4 g6 f3 Ne2 a3 Qd4 a2 Qh4 f2 Nd2 Be7 Ne4 Ra4 Ng5 Nc6 b8Q a1B+ Qb2 Na5 Ng3 e2 Bf4 Ba6 c8N e1B+ Kc2 c3 Bb5+ Nc6 Be5 f1N Qf4 Bd2 Qf5+ Ke8 Na7 Rd4 d7+ Kd8 Kb3 c2 Nc8 Bc1 Kc3 Na5 Na7 Nd2 Bd6 Bf8 Bc7+ Ke7 d8N Bc8 Nb7 Ndc4 Nd6 Bf4 h3 c1B Rg1 h4 Rg2 Nh6 g8Q Na3 g7 Bb7 Rd2 Ba8 Qgh7 Ng8 Qc2 Kf6 Ndc8 Be7 d6 Ke5 d7+ Kd5 d8B Bc6 Qhd3 Be8 Rd1 Bg6 Qh2 Bfe3 Qf1 Bb1 Qf6 Rh6 Qff2 Rb6 Rd3 Bf4 Rf3 Bfe3 Rf8 Rb8 Qf4 Nf6 Rh8 Ng8 Qf6 Bf4 Nf7 Bh6 Ng5 Nc2 Qf8 Na3 Qf1 Nb7 Kb3 Rd2 Qa2 Bd4 Qb2 Be5 Qf5 Rd4 Kc3 Na5
2n1r1q1/2kqB3/QR5p/Q1b1r1bP/NPn1N3/Q3PpN1/1qR5/1K3NR1 w - - 0 1 legal: proof: d4 e5 a3 b5 b3 b4 axb4 c5 Be3 c4 bxc4 Be7 Bc1 Bf8 dxe5 g6 e3 Qe7 f3 Qd8 Bd3 Bb7 Bf5 Be4 fxe4 gxf5 Kd2 d5 g4 Kd7 h4 a5 e6+ Kc7 h5 d4 e7 f6 e8R f4 e5 f3 c5 f2 c4 f1Q Kc2 h6 e6 f5 g5 f4 e7 a4 g6 f3 c6 a3 c5 a2 g7 Ra7 Rh2 Qg2+ Ne2 Qh3 Bb2 Ra6 Qc1 Qd6 Nd2 Qde6 Nf1 Qe5 Neg3 Nd7 Rb8 Qf6 e8Q Rb6 Qe5+ Bd6 Rb7+ Kc8 c7 Rb5 Rb6 Ne7 g8N Qg4 Rf2 Qfg7 Nf6 Re8 Nfe4 Qg8 Bc3 Q4g7 Qa3 d3+ Kc1 Qf6 Rc2 d2+ Kb2 d1Q Qd5 Qfg6 Bf6 Q6g7 Rac1 a1B+ Kb1 Ne5 Bg5 N7g6 Be7 Nc4 Qe5 Kd7 c8N Kc7 c6 Rc5 Qg5 Bf6 Qf5 Re5 Qg5 Re6 Qga5 Bc5 Rb8+ Nb6 Nh2 Ne5 Ng4 Bg5 Nh2 Qd7 Rg1 Nc4 Nhf1 Q8f8 Q5a4 Na8 Nb6 Qfg8 Qa5 Q7h8 Na4+ Nab6 Rb7+ Kc8 c7 Qhd4 Ra7 Re5 Ra8+ Kb7 Ra6 Kc6 c8Q+ Qc7 Qb8 Qcd7 Qd6+ Kb7 Qe6 Nc8 Rd6 N4b6 Qc4 Kc7 Qca6 Qc3 Q5b5 Nc4 Rb6 Qcd4 Qba5 Qb2+
B4k1q/2QP3R/RrR2rQ1/2pQn1n1/6P1/qPB3b1/R1bN1p2/r2B3K w - - 0 1 legal: proof: c4 a5 h4 g5 hxg5 e5 f4 d5 cxd5 b5 fxe5 a4 b3 a3 Nc3 Be7 Na4 Bb4 Nb2 axb2 a4 Bc5 axb5 Bf8 Kf2 b1Q d4 c5 g4 f5 Kg2 h5 e4 h4 e6 f4 e5 Bg7 g6 Ra5 b6 Qb2+ Bd2 Qg5 d6 Rb5 b7 Rh7 d5 Bf6 g7 Ra5 e7 Qa2 d7+ Kf7 e8B+ Ke7 d8R Qa4 e6 Qa2 Bc6 Qe5 Be2 Nd7 b8Q Rh6 Nf3 Ra6 Bc3 Rb6 Qc7 Qa3 Nd2 h3+ Kg1 f3 Ba8 Bg5 Ra2 Nf6 g8Q Ne4 Qg6 Qh8 Kh2 Bb7 Rc8 f2 Bf3 Bh4 Be2 Qd8 d6+ Kf8 Bf3 Ne5 d7 Ng5 Be2 Rh7 Bf3 Rg7 Be2 Be4 e7+ Kg8 Bf3 Bc2 Be2 Qf8 e8R Rf6 Re6 Qd8 Qh5 Rgg6 Ra6 Kf8 Qb1 Rb6 Bd1 Rge6 Qg6 Rf6 Qe4 Qe8 Qd5 Qd8 Qa7 Qe8 Rc6 Qh5 Qc7 Qh8 Re1 Bg3+ Kh1 h2 Re4 Nef7 Re7 Ne5 Rh7 Bg6 Kg2 h1R Qf5 Re1 Qfe6 Bc2 Qf5 Re4 Qg6 Ra4 Kh1 Qc1 Rb2 Ra1 Rba2 Qa3
3n3b/rnK1N3/1NR4q/1P3n2/BB1rkp1P/1BP1n3/Q1pQ4/bQ1N1Q2 w - - 0 1 legal: proof: b4 b5 g4 d5 f4 h5 gxh5 e5 fxe5 c5 a3 d4 a4 d3 Ra2 Bd7 bxc5 b4 c3 Bb5 Rc2 dxc2 axb5 Qd6 Bh3 Qd3 Bf1 Qd8 Kf2 Kd7 Kg3 Ke6 Kf4 Kd5 e4+ Ke6 d4 a5 d5+ Ke7 h6 f5 d6+ Ke6 h7 b3 c6 a4 d7 b2 c7 a3 c8N g6 Nd2 b1N Nh3 a2 Nf2 a1N Nc4 Qc7 d8Q Na3 Q8d2 Qg7 N4b6 Nb1 Ne7 Nb3 Ba3 Nc5 Bb4 Na3 Qb1 Nc4 Nd1 Ra2 h4 Ra4 Rg1 Nh6 Rg2 Rg8 h8Q Ne3 Rf2 Nb7 Bg2 Kf7 e6+ Kf6 Qh7 Rh8 Qg8 Ra7 Bf1 Nc6 Bc4 Rh7 Bb3 Ncd8 Ba4 Rh8 Qd3 Qh7 Qf1 Qg7 Rd2 Qh7 Rd6 g5+ Kg3 Ke5 Rc6 g4 Qg5 Nd5 Qd2 Ne3 Qa2 Bg7 Qb1 Re8 Qa2 Bh8 Qb1 Kf6 Kf4 g3 Qa2 g2 Qb1 Kg7 Ke5 g1B Qa2 f4 Qb1 Nc5 Kd6 Ncb7+ Kc7 Nhf5 e5 Qh5 Ng6 Rf8 e7 Qh6 e6 Kf6 e8B Rf7+ Ne7 Ke5 Qa2 Ke4 Qb1 Rf8 Bf7 Re8 Nec8 Rg8 e7 Rg6 Bg8 Rd6 Bgb3 Rd4 e8Q+ Ne7 Qf8 N7f5 Qg8 Bf2 Qdc1 Be1 Ne7 Bd2 Qcb2 Bc1 Q2a2 Bb2 Qgg2+ Ke5 Qge2 Ba1 Qd2 Ke4
1b1N1k1q/N2r1P2/7p/1n2bBp1/Q3r1Nn/P2QPbQN/3Rb3/BBK5 w - - 0 1 legal: proof: d4 a5 h4 d5 b4 g5 hxg5 e5 bxa5 Qd6 dxe5 Ne7 c4 Qd8 cxd5 Ng8 g4 f6 g6 Ba3 g5 Bh3 g7 Bc8 g6 Bf8 a3 Ke7 Ra2 Kd7 Rb2 Ke8 Rb3 Bd6 Rg3 Bf8 Rg5 fxg5 Kd2 b5 f4 c5 f5 h6 d6 c4 e3 b4 e6 b3 d7+ Ke7 a6 b2 f6+ Kd6 a7 Rh7 f7 Ke7 Rh2 Bb7 Bd3 Na6 Nh3 Qb8 d8N Nc7 Bf5 Rh8 Nc3 b1B Nb5 Bf3 Bb2 c3+ Kc1 Bd3 Rd2 c2 Ba1 Bde2 Qg1 Qc8 Qg3 Rb8 a8Q Rb7 Na7 Nb5 Qab8 Rd7 Qbc7 Qa8 Qc3 Qc8 Qd3 Qa8 Kb2 c1B+ Kc2 Bb2 Kb1 Be5 Kc1 Nf6 g8B Nh5 g7 Nf4 Bgh7 Ng6 g8Q Nh4 Bhg6 Kf6 e7 Qb8 e8N+ Ke7 Nf6 Bg7 Qh7 Re8 Qb3 Kf8 Ng4 Qa8 Bb1 Bb8 Bgf5 Re4 Qc4 Bge5 Qa4 Qb7 Qg6 Qa6 Qh7 Qf6 Qg6 Qh8 Qd6+ Kg7 Qd3 Kf8
QR1Q4/1qP4b/1K1Bp3/p4NQ1/r2Nr1nQ/P1R3R1/1n2P3/1k1rbNr1 w - - 0 1 legal: proof: f4 f5 c4 h5 g4 d5 cxd5 c5 gxf5 g5 b4 Rh6 bxc5 Rh7 Bh3 Rh8 Bg4 hxg4 fxg5 Bd7 Kf2 Be6 Ke1 Bc8 Kf2 Kf7 Ke3 b5 Kd4 a5 h4 g3 a3 g2 f6 Kg6 d6 Kf5 c6 b4 Kc5 Ke4 d4 e6 c7 b3 f7 b2 h5 Qd7 g6 Na6+ Kb6 Ne7 d5 Nc5 h6 Na6 h7 Qe8 g7 Nc5 g8N Bb7 d7 Bc6 d8R Nd3 d6 Kd4 d7 Be4 Rb8 Nf5 Nd2 Kc3 d8Q Nh6 Rh3 Ng4 Rg3 Bb4 f8Q b1R Ngf3 g1R Ne7 Nb2 Nf1 Qa4 Q1d4+ Kc2 Qg8 Be1 Bf4 Rd1 Qg5 Qb3+ Qb4 Rf8 h8Q Bh7 Bd6 Rf4 Nf5 Re4 Ra2 Kb1 N3d4 Qf3 Qc4 Qh1 Qd5 Ra7 Qa8 Qg2 Qhf6 Qf3 Qh4 Qg2 Qfg5 Rb7+ Kc5 Rb4 Kc6 Ra4 Kb6 Nd3 Rc2 Nb2 Rcc3 Re5 Qgg8 Qd5 Qg7 Re4 Qgg5 Qb7+
7k/1K1Pq1r1/1N2P2q/Bn2R3/2RQ2B1/BQb3p1/pbRBn2P/3q1b1Q w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 e5 axb5 Ra6 Nc3 Re6 Ne4 f5 fxe5 f4 Nf2 Rc6 Nfh3 Rf6 Nf2 Rf5 gxf5 Nf6 Ng4 hxg4 Ra3 Ng8 Ra4 Qg5 Ra1 Qd8 Kf2 Kf7 d4 g5 e4 Kg7 b4 c5 f6+ Kh7 b6 a4 f7 c4 e6 g3+ Kf3 g2 b5 a3 b7 a2 b6 c3 e7 c2 e8R Bb4 f8B Qd6 e5 g4+ Ke4 g3 Be2 f3 Bd2 c1B Nh3 g1Q Nf4 f2 Bg4 Na6 b8B f1Q b7 Qb6 d6 Ne7 d5 Qff2 d7 Bba3 d8Q Bc5 d6 Qb2 Bc7 Ba7 b8Q Nf5 Kd5 Rg8 Kc6 Qe2 Bca5 Bd4 Nd5 Bc3 Qbb3 Rg7 Nb6 Kh8 e6 Qge3 Re1 Nc7 d7 Qg5 Qf6 Qa3 Qd4 Ba6 Rc8 B1b2 Rc1 Nb5 Rc2 Qae7 Qc1 Qd3 Re5 Qh6 Qh1 Qf1 Rc7 Qd1 Rc8 Na7+ Kc7 Bf1 Kb7 Nb5 Rc4 Qf7 Qe3 Nfd4 Ba3 Ne2 Qd4 Qe7
B1k5/1NP2r2/Q2bn2p/1PN3B1/1Qq1PpK1/5Q1N/2RN1r1B/1n2rqn1 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 f4 c5 fxe5 Bg7 dxc5 Bf8 b4 Bb7 g4 Ne7 Ra3 Nc8 Rf3 Ne7 Rf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ng8 Kf2 a5 Kf3 d5 c4 Kd7 c6+ Kc8 b6 f5 c7 d4 c5 h6 b7+ Kd7 c8Q+ Ke8 b5 d3 g6 d2 g7 a4 e6 a3 e7 a2 g5 a1N g6 Ra4 c6 Nc2 Nh3 Ra7 Bg2 Nd7 b8B Ngf6 g8Q Ng4 g7 Nf2 Qa6 Nc5 Qc4 Qd4 g8N Ne6 Rh2 Na3 Qb4 Qc4 Bd6 Rh7 c7 Kd7 e8N Rf7 Be5 Bc5 Nd6 Ra8 e3 Raf8 Nb7 Kc8 Nf6 Bd6 Qdb3 d1R Ne4 Re1 Nbd2 Nb1 Nec5 Rg1 Bf6 Re1 Bg5 Nh1 Bb2 Ng3 Be5 Ne2 Bd4 Re8 Nf1 Nd8 Bh1 Re4 Rf2 Ne6 Rg2 Nec3 Rc2 Ne2 Nd2 Re5 Kf2 f3 Ba1 Qe4 Nd8+ Qb7 Q3c3 Ng1 Kg3 f2 Qca3 Rd5+ Be5 f1Q Kh4 Rd3 Bh2 f4 Kg4 Rc3 Bc6 Rd3 e4 Rf3 Bd5 Rf2 Qf3 Re3 Qaa5 Qa6 Ba8 Re1 Ndb7 Qa7 Qb6 Qa2 Qa6 Qac4
5k2/1PQ2PqR/q3RKP1/bb1rR1p1/NN2p2q/5N2/n1Q1Bn1N/b1Q5 w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 g5 f4 Ra7 fxg5 f4 Qg4 Rb7 Qf3 Na6 Qd1 Nb8 g4 h6 g6 Kd7 g7 Na6 b3 Rb8 g5 Ke8 g6 Rb6 Bb2 Nb8 Bf6 Ra6 Bh4 Rf6 Bg5 Rf5 exf5 hxg5 Ke2 c5 Kd3 e5 Ke4 c4 d4 c3 h4 c2 b6 c1B b7 a4 d6 f3 h5 f2 d5 a3 h6 a2 h7 Qc7 d7+ Ke7 d8R Qa5 d6+ Kf6 b4 Qb5 d7 Ke7 f6+ Ke6 f7 Ke7 Kf5 Qc5 b5 Qb6 Be2 f1Q+ Nf3 e4 Nc3 Be3 Qc2 Nc6 b8N Ne5 Na4 Bd2 Na6 Qbf2 b6 Qh4 b7 Nc6 Nb4 Nf6 Rh3 Rg8 h8Q Ng4 Rc1 a1Q Re8+ Kd6 Re5 Nf2 Qh7 Rh8 g8N Bg7 Nh6 Rd8 Ng4 Qd4 Ra5 Ke7 Re5+ Kf8 Ngh2 Bh8 Re6 Qg7 Rd1 Bc3 Rd5 Be1 Rde5 Bd2 Nd3 Ba5 Nb4 Qa1 Qh5 Qa3 Qg4 Qd3 Qg1 Qa6 Nd3 Nb4 Qgc1 Na2 Nb4 Re8 d8Q Bd7 Qdc7 Rd8 Q2d1 Bb5 Qdc2 Qg3 Rh6 Qh4 Rh7 Qg8 Rc5 Ba1 Rce5 Rd5 Kf6 Qg7+
1qB4q/1Rn1NQbK/kN4P1/3q1Q2/2N1rPB1/pBp2r2/2Pn1Qq1/6B1 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 f4 e5 dxe5 g4 a4 Bh6 axb5 Bf8 b4 Kf7 Ra3 Ba6 Rf3 gxf3 g3 Bb7 g4 Bd5 h3 Ke8 g5 Bf7 Be3 Bh5 Bc1 Bg4 hxg4 Qf6 Ba3 Qe7 Bc1 Qd8 Kf2 a5 Ke3 c5 Ke4 h5 g6 h4 f6 d5+ Kf5 Kd7 g5 Kc7 g7 Kb7 Kg6 f2 f7 h3 b6 a4 b5 a3 e6 d4 e7 h2 e8B d3 Qg4 d2 Bd7 d1Q Nf3 c4 Nh4 c3 Nd2 Rh7 Bh3 f1Q Nc4 Rh8 Qf5 Qe8 Be3 Bb4 Bg4 Be7 Bg1 Na6 Bc8+ Kb8 b7 Nf6 g8B Qed7 f8Q Qb1 Qf7 Ne4 Kg7 Bb4 Ng6 Nc7 Ne7 Rh3 g6 Rf3 Kh6 Bc5 Kh7 Ka7 b8N Qd5 Nd7 Qg2 Ndb6 Qb2 Bf2 Qb4 Rb1 Nd2 Bg1 h1Q+ Kg7 Qf1 Na4 Ne4 Nd6 Qdd1 b6+ Kb8 Q7e6 Qfg2 b7 Ka7 Qef6 Bd4 Bge6 Be3 Qf7 Bd4+ Kg8 Qh6 Ba2 Qf8+ Kh7 Qb6 Rb5 Bg7 Bb3 Qd5 Rb4 Nd2 Rb5 Ka6 b8Q+ Qbb7 Rb4 Ka5 Rb6 Ra6 Qa7 Qb8 Rb7 Qd8 Qd4 Rb6 Qc5+ Ka6 Qf2 Rb4 Nb6 Re4 Ndc4 Qh8#
Q1bRq3/3Qr2P/2nQ1q1b/2Np2R1/1Bk1B3/1RP1Pnp1/1Bn2K1n/2Q5 w - - 0 1 legal: proof: f4 b5 d4 c5 dxc5 f5 a4 a5 axb5 e5 fxe5 h6 g4 f4 Nd2 h5 Nc4 Ra6 Ne3 Rf6 Ng2 Bd6 Ne3 Rf5 gxf5 Bf8 Ng4 hxg4 b4 Ke7 h4 g5 e3 d5 f6+ Ke6 f7 a4 c3 g3 h5 a3 h6 f3 c6 a2 b6 g2 c7 g4 b5 Qd7 b7 Be7 f8B Na6 b8R Rh7 b6 Bc5 b7 Rf7 h7 Nh6 Bd3 Qa4 Bb2 Ng8 Qc1 Ba3 Nh3 g1N Bb4 Qe8 Rb1 a1Q Be4 Ne7 Nf2 Nc6 Nd3 Re7 Rh5 f2+ Kf1 Nf3 Rg5 Qa2 Kg2 f1N Kf2 N1h2 Nc5+ Kf7 e6+ Kf6 Rg7 Ke5 Rg5+ Kd6 Ra8 Qc4 b8Q Qd4 Qb6 Qf6 Qb8 Rg7 e7 Rf7 Ba1 Rg7 Rb3 Rf7 Bb2 Rg7 Ba5 Nab4 Qb6 Nc2 Bb4 Qg8 e8Q Re7 Qf7 Qe8 Qb8 Na5 Qf8 Kc6 Qa7 Kb5 Qb6+ Kc4 Qd6 Nc6 Qg7 Bd7 Rd8 Bf5 c8Q Bd7 Qa8 Bc8 Ba5 Bb4 Nd3 Bc5 Bb4 Bd4 Qf7 Be5 Nc5 Bf4 Rg6 Bh6 Rg5 Re5 Qfc7 Re7 Qcd7 g3+
5KRq/1P1b4/1r2NB1k/1p2N3/3Q1qr1/Pp1q1QBP/q1nN3n/1Q1Q3B w - - 0 1 illegal: No proof kernel
1kB1n3/1N1QP3/1nK1npR1/b2QN2b/2r2P2/3pR1n1/1rR1N1P1/2R3Qn w - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 dxe5 Be7 a4 Bd6 axb5 Bf8 h4 g5 Kd2 g4 f3 Qg5+ hxg5 g3 Bb2 Nh6 Bd4 Ng8 Bf2 gxf2 Ke3 Kd8 Kd4 Kc7 Kd5 a5 e4 h5 c4 a4 g6 d6 g7 f6 e6 a3 e5 h4 f4 a2 c6 h3 b6+ Kd8 c5 h2 b7 Kc7 e7 Ra4 e8Q Bg4 e6 Nh6 g8Q Na6 b8R Rc4 Nf3 Rc2 Nc3 Nf5 Rb3 Rb2 Ne5 Bh5 Rc1 a1N Ne2 Ng7 Re3 Nb3 Qd7+ Kb8 Qgf7 Ne8 c7+ Ka7 c8R+ Nac7+ Kc6 d5 Rc2 d4 Qe1 Bd6 e7 Nd2 Qd5 Nc4 Rg1 h1N Rb8 Ng7 Rg8 Ne6 Rg6 Nb6 Nc1 Ra8 Ba6 f1N Ne2 d3 Qf2 Nh2 Rgc1 Na4 Qg1 Kb8 Bb7 Ne8 Ba6 Ra2 Kb5 Nf1 c6 Nb6 Bb7 Nfg3 c7+ Ka7 c8N+ Kb8 Kc6 Rb2 Ba6 Bb4 Nd6 Bc3 Bc8 Ra4 Nb7 Ba5 Re1 Rd4 Rec1 Rc4+
n5rb/1Pkb4/1prN1Q2/3P3N/3B2QN/2rP2NQ/p1n1B3/1R1bKb1B w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 g4 b6 g3 b7 Nd7 b8N Nc5 hxg3 Na6 g4 Be6 g5 Bc8 b4 e5 f4 e4 b5 Ba3 b6 Qd7 b7 Qe7 Ra2 Qe6 Rb2 Qe5 fxe5 Bf8 Rb6 cxb6 g4 Kd8 c4 h5 e6 f5 g6 e3 g5 h4 g7 f4 e7+ Kc7 g6 e2 Nc3 f3 Ne4 h3 Nd7 h2 Ng3 Nb4 Bb2 a5 Bd4 a4 Qa1 a3 Nf6 a2 Nfh5 Nf6 g8B Ra3 g7 Rc3 e8N+ Kb8 c5 Bd7 Nd6 Ne8 c6 Nc7 d3 Na8 Bh7 Kc7 g8Q Bg7 Be4 Bf6 Qg4 f2+ Kd2 e1R Be2 f1B Nf3 Rc8 Nh4 Rec1 B4f3 R1c2+ Ke1 Rg8 Rg1 h1B Be4 Kb8 Bg2 Bh8 c7+ Ka7 Be4 Bf3 c8Q Rc6 Qb2 R2c3 Qh3 Bfg4 Bh1 Nc2+ Kd2 Bg2 Rb1 Bf1 Kd1 Bdf5 Qe6 Kb8 Qb4 Kc7 Qf6 Bd7 Qa4 Na3 Ke1 Bg2 Bf1 Bd1 Be2 Bf1 Be5 Rb8 Qag4 Rg8 Bd4 Nc2+
2k2q2/1p1b3Q/Nq3N1Q/2bBnR2/r4R2/pb1PR3/1PqKbPQ1/4N1N1 w - - 0 1 illegal: No proof kernel
2bnR2B/R2n2r1/6Bp/Q1PQ2PP/1RB1prk1/qKbp2B1/1n5Q/3N4 w - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 e5 a4 g5 axb5 f5 d4 Ke7 f4 Bh6 fxg5 Ke8 Nc3 Qe7 dxe5 Qf6 e6 Bf8 e5 Qd8 Ne4 fxe4 Kd2 Ke7 Kc3 d5 h4 a5 g4 d4+ Kb3 h6 c4 Qc7 c6 Ra7 b6 Bg7 b7 Nf6 h5 Bf8 c5 Bg7 g6 Bf8 g7 Na6 g8Q Qd7 b8B Rc7 g5 Bg7 Nh3 Nb4 Qe1 Nd3 Nf2 Nb2 Bc4 d3 Nd1 Qd4 Qg3 Ra7 c7 Nd7 Qh2 Rh7 Be3 Bf6 Bf4 Rf7 Bg3 Bh8 Ra4 Rf4 Rb4 a4+ Ka3 Ba6 c8Q Rb7 Ka2 a3 Kb3 a2 Qc7 Bg7 Qa5 a1N+ Ka3 Nc2+ Kb3 Bf6 Bc7 Ra7 Qa8 Bc8 Qd5 Ne3 Rg1 Nf5 Rf1 Ng7 Bd8+ Ke8 e7 Ne6 Rh1 Kf7 e8R Bg7 Bf6 Qc3+ Ka2 Qc1 Kb3 Qa1 Rg1 Bf8 Bh8 Bg7 Rd8 Ke7 Rf8 Nd8 e6 Bc3 Rg2 Na4 Ra2 Nb2 Rf6 Ke8 e7 Rc7 Re6 Kf7 e8B+ Kf8 Rd6 Ke7 Qda8 Rb7 Bg6 Ra7 Rd5 Ke6 Ra3 Nf8 Raa4 Rg7 Rd7+ Ke5 Ra7 Nd7 Rb8 Qb1 Rab4 Qa1 Be8 Kf5 Qd5+ Kg4 Bg6 Nf6 R8b6 Nd7 Re6 Rf2 Re7 Rf4 Re8 Qa3+
1q5N/2Rr1Q2/3Rb3/1nP2Rq1/NK1rnb1Q/P2p1PR1/4kpBp/4N1Q1 w - - 0 1 legal: proof: d4 a5 h4 f5 e4 g5 hxg5 e5 b4 c5 bxa5 Bg7 dxc5 Bh6 exf5 Bf8 Kd2 e4 f3 Qb6 Bb2 Qc7 Bd4 Qd8 Bf2 e3+ Ke2 exf2 Ke3 Ke7 Kd2 Ke8 c6 Ke7 Kc3 d5 g4 Kd6 g6 Kc5 f6 h5 a3 b5 g5 h4 g7 h3 f7 Ba6 g6 Qc7 Ne2 Qb6 c7 Qb7 c8R+ Qc6 Nc1 Bb7 a6 Qc7 a7 Na6 Bg2 Rh7 Qg1 Nf6 g8R Bh6 f8N Rd7 g7 b4+ Kb3 Kd4 c4 Ke3 c5 d4 Nc3 Rb8 a8Q Qg3 Ng6 Nc7 Na4 Ne4 Nd3 Ke2 Nh8 Bf4 Ne1 d3 Rb1 Qg4 Rcf8 Rd4 Rf5 Bc8 Rd8 Rb7 g8Q Qg7 Qf7 Be6+ Rdd5 Qg6 Qd8 Qg8 Qh4 Qg5 Rh2 Ra7 Bh1 Rb7 Rg2 h2 Rg4 Ra7 Bg2 Rb7 Rg3 Ra7 Nb6 Rb7 Ka4 b3+ Ka5 b2 Rd6 Bd5 Na4 Be6 Rc1 b1Q Rd1 Qa1 Rb1 Qa2 Rbb6 Qb2 Rbc6 Ra7+ Ra6 Qb8 Rd7 Rb7 Rad6 Nb5 Re7 Rd5 Kb4 Ra7 Rc7 Rb7 Rc8 Rd7 Rc7 Rd4+
3K4/bp1N2R1/1Rqr1bQ1/p1P5/3qr2Q/p1BPRB2/kB1RQn1P/6n1 w - - 0 1 illegal: Other
2B4Q/R5pn/p2N3R/1R4rQ/2NQPNnP/1b4kq/1Pn1p3/1bK1R1b1 w - - 0 1 legal: proof: c4 c5 e4 e5 g4 h5 gxh5 b5 cxb5 f5 a4 f4 a5 a6 d4 Ra7 dxe5 Rb7 Be3 Rb6 axb6 fxe3 f4 Kf7 h6 Ke6 b7 d5 h7 c4 b6 d4 Ne2 d3 Nd2 c3 Nc4 Nf6 Bh3+ Ng4 f5+ Ke7 f6+ Ke6 f7 c2 Qd2 c1N Kd1 Bc5 f8Q Nb3 Qf3 Nd4 Kc1 Nd7 b8R Nf8 b7 Qh4 Ra8 Nc2 b8R Bd7 Qc3 Ba4 Rb5 Bb3 Ra7 Qh5 Qd4 d2+ Kb1 d1B Kc1 Ba2 Re1 Bb1 Qh1 Rg8 h8Q Nh7 Ra3 Rc8 Ra1 Rc7 Nf4+ Ke7 e6 e2 Qf3 Bb6 Raa5 Qh6 Rh5 Rb7 Rae5 Kf6 e7 Rd7 Qh1 Rd5 Rh4 Qh5 Qf3 Qf5 e8N+ Kg5 Rh6 Rb5 Ned6 Bc5 Rf6 Kh4 Rh6+ Qh5 Qdd3 Bg1 Qd4 Rb4 Ra5 Rb5 Qh1 Rg5 Rb5 Nf2 Bd7 Ng4 h3 Kg3 Bc8 Qe8 h4 Qe6 Qf3+ Kh2 Qb3 Qd7 Qb4 Kg3 Qbc5 Qf5 Ng6 Qf1 Nf4 Qh3 Qf5 Na1 Qg6 Bb3 Qh5 Nc2
nr5r/B1P3N1/RPp3p1/2Q1K1Qp/2br1qN1/1kPBb3/4Q2N/5BbB w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 c6 axb5 Be7 d4 Bd6 h4 Na6 d5 Bc5 d6 Nc7 dxc7 Bf8 g4 g5 hxg5 Nf6 g6 Be7 g7 Bc5 g8B Bf8 b4 Ne4 g5 Be7 g6 Bd6 g7 Nf6 Ra3 Be7 Rg3 Bf8 Rg6 fxg6 Kf2 Ke7 Ke3 d5 Kf4 a5 e4 h5 c3 d4 e6 Kd6 e5+ Kd5 e7+ Be6 e8Q a4 b6 d3 b5 Kc4 b7 a3 b8Q a2 Nd2+ Kd5 Qe2 a1B Nh3 Bb2 Qb6 Bfa3 Qe7 Bf7 e6 Rh6 Nf3 Kc4 Be3 Ne8 Nh2 Bc1 Qg5 Qe7 Nf2 Rh8 Ke5 Nf6 Qc5+ Kb3 Nfg4 Qf8 e7 d2 e8N Bc4 Bd5 d1R g8B Rb8 Ng7 Rd4 Bge6 Bb4 Bf5 Ba5 Bfe4 Bb6 Bd3 Ba7 B5e4 Nd5 Rg1 Nb6 Bh1 Na8 Rg2 Rdd8 Bg1 Be3 Rf2 Bb6 Rf4 Bf7 Ra4 Bc4 Ra6 Rd4 Ne8 Rf4 Ng7 Bd2 Qd5 Ba7 Bf2 Bc1 Be1 Bg1 Bf2 Qf7 Ba7 Bce3 b6 Rd4 Qc5 Qf4+
1B1RN3/3Q2B1/b2Pn1QB/q1k3N1/2n1p1P1/4q1pp/bQ3bPr/1KN4B w - - 0 1 illegal: Other
4k1N1/Q5Q1/np2q2q/1K3r2/nb1pR3/5P1Q/PnQPNNbp/RR1B4 w - - 0 1 legal: proof: e4 g5 h4 f5 exf5 c5 hxg5 b6 b4 Nc6 b5 Rb8 Ba3 Rb7 Bb4 a6 bxa6 cxb4 axb7 Nb8 Ke2 h5 Kd3 d5 g4 e5 c4 h4 f6 b3 c5 h3 f7+ Kd7 g6 b2 c6+ Ke7 c7 d4 Kc4 e4 f3 e3 g5 e2 g7 e1Q g6 h2 Nh3 Nd7 b8Q Nc5 Qa7 Na4 Be2 Qd6 Kb5 Nf6 g8R Ne8 g7 Qh6 Nc3 b1N Qc2 Nb2 Bd1 Qee6 Nf2 Kd7 Re1 Bb4 Re4 Ke7 Ne2 Bd7+ Ka6 Nc3 c8Q Nca4 Rb1 Qe3 Ra1 Rh5 Rb1 Qh6 Ra1 Kf6 f8Q+ Kg6 Qe7 Rf5 Qg5+ Kf7 Qg3 Rc5 Qcc7 Rf5 Qh3 Nf6 Rc8 Ne8 g8N Kf8 Qcg3 Kf7 Rc3 Kf8 Rb3 Nc7+ Kb7 Ke8 Qg7 Nd3 Rbb1 Ndb2 Qhg2 Na6 Qh3 Bb5 Qgc7 Bd6 Qg7 Bd3 Kc6 Bc4 Ng3 Bf1 Ne2 Bc5+ Kb5 Bg2 Re3 Be7+ Re5 Bc5 Re4 Bb4+
4QB1r/1k2q3/p4R1b/b1pP2N1/1r1N2QP/Bb1Q3N/p1PqNK2/5B1n w - - 0 1 legal: proof: g4 e5 b4 h5 gxh5 d5 f4 e4 a4 d4 a5 e3 b5 Nd7 Ra2 Nb6 axb6 d3 Ra6 bxa6 exd3 e2 d4 Ba3 d5 Bf8 Kf2 e1N Ke2 Nf3 Kf2 Ne5 fxe5 Bd6 Ke1 Bf8 d4 Kd7 h4 f5 b7 g5 b8B f4 h6 f3 b6 g4 h7 g3 b7 g2 d6 Kc6 d7 Ne7 e6 Nf5 e7 Bh6 e8Q Qe7+ Kf2 Ng3 d8Q+ Kb6 Qe2 Be6 Ba3 Bb3 Nc3 a5 d5 a4 Qc8 a6 Qd3 c5 Bf4 Rb8 Nh3 Ka7 Ne2 g1B+ Ke1 Be3 Qg4 Bc1 Bd6 Bcd2+ Kf2 Ba5 Rg1 Qd8 Bf8 Qe7 Bb4 a3 Rg2 a2 Ba3 Ra8 b8N Kb7 Nc6 Rb8 Rg1 Kc7 Ncd4 Rb4 Rh1 Kb7 Bg7 Rf8 h8N Rg8 Nf7 Rh8 Kg1 f2+ Kg2 Qe6 Bf8 Qe3 Nfg5 Qd2 Kf3 Qd1 Bg2 f1Q+ Ke3 Qfe1 Bf1 Qdd2+ Kf3 Rc4 Rh2 Rb4 Rf2 Qe3+ Kg2 Q1d2 Rf6 Qe7 Kf2 Nh1+
kqbQQR1b/1R3p2/1QP5/p1P1QrK1/1r3r1N/4B2r/N1PpRN2/7n w - - 0 1 illegal: No proof kernel
Q1B5/bP4KN/1rB1QBn1/2R1pPb1/r2bN2b/2QpPn2/Q5p1/3N3k w - - 0 1 legal: proof: c4 f5 g4 h5 gxf5 b5 b4 Ba6 a4 Bb7 axb5 Bc6 b6 Bf3 Ra3 Bb7 Rg3 Bc8 Rg4 hxg4 b7 Rh3 Na3 Rh4 Nb1 Rh8 b5 c5 d3 d6 b6 Qd7 Be3 Qb5 Bc1 Be6 cxb5 c4 Bh3 c3 Bf1 Bc4 dxc4 Rh4 Bh3 Rh7 Bf1 Rh8 h4 Kf7 f4 Kf6 Kf2 g5 Ke3 a5 Ke4 a4 h5 g3 c5 c2 e3 g4 c6 e6 h6 a3 c7 a2 c8B a1B h7 g2 Nc3 g3 Nh3 g1B Bb2 c1B Ng5 g2 Qg4 Bh6 Nd1+ Ke7 Rh5 d5+ Ke5 d4 Ne4 Ra4 f6+ Kf7 Be2 d3 Bf3 Ne7 Rf5 Re8 h8Q Bf2 Qh3 Kg6 f7 Rd8 Rh5 Rd6 f8N+ Kf7 Rg5 Bh4 Nh7 Bd2 Rh5 Kg6 Rf5 B6g5 Qg4 Na6 b8Q Nb4 b7 Nc2 b6 Ba5 Qa8 Ne1 b8Q Kh6 b7 Bb6 Qg8 Ba7 Qc7 Rb6 Bd4 Bb2 Qc3 Ba1 Nd6 Bb2 Bc6 Ba1 Ne4 Ng6+ Kd6 Nf3 Bf6 Bb2 Rc5 e5 Q4e6 Kh5 f5 Kg4 Kd7 Kh3 Ke8 Kh2 Kf7 Kh1 Kg7 Ba1 Qa2 Bb2 Qge6 Ba1 Qca3 Bd4 Q3b3 Ra5 Qc3 Ra4
2B1Q1b1/rq1P2p1/p1b1Q1qR/5K1b/r5P1/Pp2N3/1NR2R1N/4QNkr w - - 0 2 illegal: No possible last move, all moves rejected
1b3kn1/N1P4Q/n2PpPnq/7r/p1K5/r1ppQBR1/RQ2N3/R1N1R3 w - - 0 1 illegal: No proof kernel
rNR1Q2q/3pq2q/NK1RbQP1/Np3pp1/Q7/4P3/RB1P2k1/n1R4n w - - 0 1 legal: proof: f4 b5 a4 g5 f5 Bg7 a5 Bd4 Na3 a6 Nb1 Bb6 axb6 a5 b7 Ra6 b4 h5 g4 c5 gxh5 Rg6 fxg6 f5 bxc5 f4 Bh3 e6 Bf5 exf5 Kf2 Ke7 c4 Ke6 h4 Ke5 h6 Ke4 h7 a4 c6 a3 c7 a2 h5 f3 h6 Qe8 c5 Qe5 c6 Kf4 Qa4+ Qe4 Nh3+ Kg4 Nf4 Qc2 Ke3 Kg3 Kd4 f2 e3 f1Q Na3 Qb2+ Kc5 Qc3+ Nc4 Qe2 Ne6 Nf6 Bb2 Qh5 Kb6 Qa3 Na5 Na6 b8N Ng4 Rhc1 Bb7 c8R Kg2 c7 Bd5 Nc5 Nb4 Nca6 Be6 Rc6 Nf2 Rd6 Re8 h8Q Nh1 h7 Nc2 Qf6 Qb4 h8Q Qh7 Rc1 a1Q Rd8 Qe4 c8R Qe5 Qhf8 Qa3 Q8e7 Na1 R8c2 Qeh2 Rdc8 Rd8 Qe8 Qh8 Rd4 Qe7 Rd6 Q2h7 R8c3 Kf3 Ra3 Kg2 Ra2 Rc8 Rc3 Rc7 R3c2 Ra7 Rc8 Ra8
1n1BN1B1/5PB1/1KQQ3P/2R5/5Pb1/prp1Bp2/1QpNp1kn/2Nq3r w - - 0 1 illegal: No possible last move, all moves rejected
R2rn1N1/p1Q2p1Q/4Qp1B/PBpB2K1/R2p1r2/4p1B1/3bPRP1/2k3b1 w - - 0 2 illegal: Other
5n1q/brb2p2/QN2QP2/R4P1k/1N1Qn2P/rBn1rq1b/B1B5/3K1NB1 w - - 0 1 illegal: No proof kernel
3Rb1N1/1Q3RB1/1NPN1r1R/2Kpnq1Q/rb1r1R1q/nP1Pk3/6Q1/4rr2 w - - 0 1 illegal: No extended proof kernel
n2nB1nk/b3rR2/1R2p2P/R1B4q/Q3B1q1/1P1Qn3/K1r1PR2/1N1Q1n1b w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 g4 h6 g6 Bg7 Nc3 Bf8 Ne4 h5 g5 Rh6 Nf2 Rh8 Ng4 hxg4 d4 a5 Kd2 f5 Kc2 c5 Kb3 Nh6 h4 e6 b6 g3 g7 Kf7 g8R f4 d6 f3 b7 g2 d5 f2 h5 Nc6 b8R a4+ Ka3 c4 b3 c3 Rh3 c2 Rh2 Qe8 Nf3 g1Q Nd2 Bb7 Nb1 Qg4 Be3 c1N Bg2 f1N g6+ Kf6 g7 Na2 Bf3 Nab4 d7 Ra7 d6 Nd5 Rf2 Nc7 d8Q+ Be7 Qd7 Na8 Ra2 Qeg6 Kb2 a3+ Ka1 Qf7 Rgf8 Rh7 g8B Kg7 Qe8 Kh8 d7 Bc5 d8Q Ra4 Q8d2 Rc4 Qd3 Ba7 Bc5 Nd8 Qed7 Qfg6 Bf7+ Ng8 h6 Q6h5 Be8 Re7 Rf7 Rc2 Q7b5 Be4 Rb6 Bc6 Be4 Bd5 Bg6 Bh1 Be4 Rc3 Rd2 a2 Kb2 a1N Ka3 Rc7 Ra2 Nc2+ Kb2 Rb7 Ra5 Re7 Ka2 Nce3 Qa4 Rc2+
2Q2q1R/Q6K/1P1P3N/QqR2n1b/2n1b1pn/bk1B1rP1/1b3NN1/1r1R3Q w - - 0 1 illegal: No extended proof kernel
1b1QN2r/1PB1bbr1/3PpN2/4PQ2/2q1N1Q1/2RRR2r/3K1nqN/2n1r1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 c4 Nf6 cxd5 Ng8 Bh3 Rh6 fxg5 Na6 g6 Nb8 g5 Rh8 Bg4 hxg4 e4 Kd7 h4 Kd6 d4 f5 b4 a5 g7 c5 g6 c4 b6 f4 b5 a4 b7 a3 h5 f3 h6 a2 b6 c3 h7 g3 Rh4 g2 Nd2 c2 Rh3 Nc6 b8R Nh6 g8N Na5 b7 Ng4 g7 Nf2 Nf6 Be6 g8N Bf7 Rc8 e6 Rc3 Qc8 Re3 Be7 Ne8+ Kd7 d6 Kc6 d7 Nb3 d8Q Ra3 d5+ Kc5 Qe2 Kd4 Ngf6 Qc4 Rb1 a1R d6 R1a2 e5 Rb2 Nde4 Rba2 Bd2 Nc1 Rg3 Rd3 Nh3 g1B Rb3 Ra8 Rc3 Rg8 h8Q Rg7 Qa5 Rc8 Qh5 Rb8 Nc7 Rh8 Nce8 Bf8 Nhg5 Ng4 Rb3 Nh2 Rg2 Qc5 Qd8 Qc4 Ba5 Ng4 Bc7 Be7 Rc3 Nb3 Qd1 c1Q Ree2 f2+ Kf1 Qb2 Ng3 Nc1 N3e4 Qba2 Rd2 Ke3 Nf3 Qc2 Rg3 Qb2 Kg2 f1R Qf5 Re1 Rh3 Qc2 Kg3 Q2a2 Nh2 Qb2 Qb3 Qc2 Rd1 Ke2+ Kf4 Ba7 Qa2 Rg3 Rdd3 Bb8 Qa7 Q2a2 Qg1 Re3 Rf3 Qc2 Rf1 Reh3 Rff3 Qb2 Qg3 Qb6 Qh4 Qg1 Qg3 Nf2 Qgg4 Rd1 Rg3+ Ke1 Ke3 Qg2 Nf3+ Kf1 Nh2+ Kg1 Rf3 Re1+ Kd2 Bf8 Rfe3 Be7
1q3Rr1/2RR4/rpQQq1n1/rP2bB1r/b1bK2P1/2n2QP1/2Nk1N2/3N3Q w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 a5 b4 f5 exf5 g4 b5 g3 hxg3 Na6 g4 Nb8 Ba3 Bg7 Bd6 Bf8 Bb4 axb4 Ke2 Kd7 Kd3 Kd6 a4 Kc5 f4 e5 d6 h5 g3 b3 f6 Kb4 f7 c5 f5 b6 d7 h4 a5 h3 f6 b2 a6 e4+ Ke3 h2 d4 c4 d5 c3 d6 c2 a7 c1R Na3 Kc3 Bd3 b1B Nh3 Ne7 Nc4 Rg8 Nf2 Nbc6 Nb2 Nd4 Rg1 Qe8 d8Q h1R d7 Ng6 Qf1 Bb4 f8Q Bd6 f7 Ne2 Qf6+ Be5 d8N Bc2 Nc6 Rh5 Qf3 Be6 Nd4 Qb8 Qd8 Bcb3 f8R Bf7 Ra6 Ra1 Nc2 Bfc4 Q1g2 Bc7 Rd1 Ra5 Qh1 Ba4 Rd2 Bd6 Nbd1+ Kb3 Nb4 Nc3 Bb1 Be5 Rd6 Bf4+ Kd4 e3 Bf5 e2 Qc7 e1Q Rd7 Qe6 Nc2 Ka2 Qd6 Kb1 Rc8 Kc1 Rc5 Qd8 Rcc7 Rb8 a8Q Kd2 Qac6 Ra8 Rc8 Qc7 Ra7 Qb8 Rac7 R8a6 Rf8 Be5+
3b4/P4Q1b/1k2bPKQ/N4n2/1pq1Q1nQ/BP1r2R1/2RR1n1n/1B1r1Bq1 w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 d4 b3 d3 Na3 a5 Nc4 a4 Nb2 a3 cxd3 axb2 d4 Nc6 d5 Nb8 Ke2 Kd7 Kd3 b1N Ke4 e5 d4 b5 g4 c5 a4 Kc7 f4 h5 f6 c4 a5 b4 f5 h4 g6 c3 d6+ Kc6 d7 h3 g5 h2 d5+ Kc7 f7 c2 a6 Rh4+ Qg4 Bg7 f8Q Nc6 a7 Nce7 d6+ Kb6 Ba3 c1Q Ne2 Bf6 g7 Qc4+ Nd4 Rh3 g6 Nh6 g8B Rd3 Rg1 h1B+ Qg2 Rd1 g7 Ng4 Ra2 Qe8 d8R Qg6 Rf2 Be6 d7 Qg5 Rc2 Nc3+ Kf3 Rc8 Bh7 Ne4 g8Q Nef2 Nc6 e4+ Kg3 e3 Qh6 e2 Qe4 e1N Na5 Nf3 Qf7 Qg7 Kf4 Nfh2 Rg3 Rc6 Bg6 Rcd6 Bh7 R6d3 Bg6 Be5+ Kg5 Bc7 f6 Qh8 Bh7 Nf5 Kg6 Bf3 Rc8 Bd8 Rd2 Qf8 Rc7 Qfc5 Rc8 Bc7 d8Q Qe3 Qdf8 Bd8 Qh4 Qed4 Qfh6 Bg2 Qef4 Bgd5 Qe4 Qe3 Qe7 Bg8 Qf7 Be6 Rc7 Qa6 Rc1 Qc4 Rcc2 Qe1 Be2 Qh1 Bf1 Qg1 Qf3 Ka6 Rc1 Nfe3 Kg7 Rd4 Bb1 Kb6 Qe4 Rd3 Kg6 Nf5 Rcc2 Bh7+
bN2N2K/1RQ2n2/Q6p/R2R4/QN2q1BP/nP1q1rb1/1k3b1P/R2qbr2 w - - 0 1 illegal: No proof kernel
2rN2KQ/PB5p/2n2B1q/1Q1R2Q1/N6P/1n1b1qbn/P2n2r1/NB2kB1b w - - 0 1 legal: proof: c4 a5 b4 e5 bxa5 g5 f4 d5 fxe5 Bb4 cxd5 Nc6 Na3 Be7 Rb1 Bf8 Rb4 Nb8 Rf4 gxf4 Kf2 Ke7 Kf3 b5 Ke4 c5 d4 b4 g4 f6 h4 b3 g5 f3 e6 Kd6 Kf5 f2 e4 b2 a6 b1N a7 c4 g6 c3 g7 c2 e5+ Kc7 d6+ Kb6 d5 Ka5 d7 Kb4 e7 Kc3 Ke6 f5 Kf7 f4 e8Q f3 d6 Qc7 e6 Nf6 g8B Bg7 e7 Nc6 d8Q Ne4 d7 Qb6 Qd5 Nbd2 Qg5 Be5 Ne2+ Kd3 Rh2 Bg3 Bb2 c1N Nc2 Ncb3 Bf6 Bb7 Na1 Rc8 Kg7 Qe3 Bd5 Rg8+ Kf7 Qf4 Nc3+ Ke3 Na4 Rg6 Qe5 Qh6 Qh8 Rg4 Qf5 Ng5+ Kg8 Ba8 e8B Nh3+ Bg6 Bb7 Bg2 Ke2 Bf1+ Ke1 Qg5 Ba8 Bb1 Bb7 Qf8 Ba8 d8N Bb7 Bb5 f1Q Qc5 f2 Bh1 Qg2 Bf1 Qf3 Qb5 Ba8 Bc4 f1B Rg2 Ne4 Rd2 Bb7 Rd5 Ned2 Bg2 Bd3 Bh1 Re4 Bg2 Re2 Bf1 Bc2 Bd3 Rg2 Bf5 Bd3 Bd7 Rb8 Bc8 Ba8 Ba6 Rc8 Bb7 Qe4 Be7 Nb8 Ba6 Rf2 Rd6 Qg4 Rd7 Bh1 Bb7 Nc6 Bf6 Qf3 Rd5 Rg2
n4K2/2BpqbQQ/2rb1qQR/8/Bn1P1bnP/1rRB1k2/2b1NP2/5RR1 w - - 0 1 illegal: No possible last move, all moves rejected
2b2q1R/1kN1pP2/1N4B1/3N1nPb/R7/3Rr1Q1/Q1K1PNQ1/1nb1rqbr w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 g4 f5 d3 f4 f3 Kd7 Be3 Ke8 Bf2 Bh6 Bh4 Bf8 Bg3 fxg3 Kd2 Kd7 b4 c5 f4 Kc7 d6+ Kb7 d4 a5 f5 h5 d7 a4 g6 g2 f6 a3 g7 c4 b6 c3+ Kc2 a2 d5 h4 b5 h3 f7 h2 d6 Rh6 Nh3 g1Q Bg2+ Nc6 Qd5 Qe8 d8R Ra3 d7 Rd6 Nf2 Ra7 Be4 Nf6 g8Q Bh6 Bg6 Ra3 g5 Qf1 Qg2 Bg7 Qh7 Re6 Qh4 Qg8 Qc4 Qf8 Qcd5 Re3 Qc4 Kb8 b7 Ne4 Qe6 Ka7 b8N Kb7 b6 Nd2 Na6 Bf6 Nc7 Bd4 Nd5 Ra5 Na3 Nb1 Nb5 Bc5 Nbc7 Ra4 Qe5 Rh4 Qeg3 Rh3 Re8 Rh7 d8Q Bd4 Rg1 h1B Qd7 Bc5 Qe6 Rh4 Q2h3 Bf3 Qhg2 Bh5 Rd8 Na7 Rh1 Nb5 Rh3 Nd6 Rh2 Kb8 b7 Nf5 Rh1 Ka7 b8N Kb7 Nd7 Ba7 N7b6 Rh2 Kb3 c2+ Kb2 c1B+ Kc2 Rh4 Rh2 Rd4 Rh4 Rd1 Rd4 Re1 Rd3 Qh6 Rg8 Qf8 Rh8 Nd2 Rb1 a1R Rb4 Nb1 Ra4 Ra3 Qh4 Rh3 Qhg3 Rh1 Qf6 Rb3 Qa1 Ra3 Qa2 Rb3 Nc4 Bd4 Ncb6 Ra3 Ng4 Bg1 Nf2 Rb3 Rd2 Rf3 Rd3 Re3
BK1B2Bn/Pb2pb1r/1q1kBQ1p/r3r1n1/2QNQ2P/3NN3/n3R1P1/6b1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 bxa5 Na6 e4 Nb8 exf5 Qc7 Qd5 Qb6 Qd1 Qd8 f4 g5 a4 Nc6 f6 Nb4 f5 Na6 Ra3 Nb8 Rf3 Qc7 Rf2 Qd8 Rf4 gxf4 Ke2 b5 Kf3 d5 c4 Kd7 h4 b4 a6 h6 c6+ Kd6 f7 b3 c7 d4 Ke4 f3 a5 b2 c5+ Kd7 Kd5 d3 f6 d2 Qa4+ Nc6 Na3 d1N Bc4 b1R Be3 f2 Nf3 f1B Nc2 Bg7 f8N+ Ke8+ Nd7 Na7 c6 Nb2 Bb6 Bb7 c8B Bd3 Re1 Qc7 f7+ Kd8 Nc5 Bg6 Nd3 Nb5 f8Q+ Be8 Ba2 Nc4 Bb3 Rb2 Re2 Ncd6 Qe4 Nc3+ Ke6 Be5 Nfd4 Nf7 Ne3 Nf6 Bd7 Bh2 Bc4 Rc8 a7 Rb5 a8B Nh7 a6 Ra5 a7 Bg1 Qg7 Na2 Qf6 Ra3 Kd5 Nhg5 Bg4 Rh7 Kc5 Ne5 Bg8 Ng6 B4e6 Bf7 Ba5 Ke8 Bb6 Qd8 c7 Nh8 Ba5 Ra4 Kb6 Qd6+ Nc6 Rd8 c8Q Qd4+ Kc7 Qb4 Bb6 Ra5 Nd4 Qb1 Bh3 Qb4 Qce6 Rdd5 Kb8 Re5 Bd8 Qb5 Qa6 Qc5 Be6 Qb6 Bb3 Kd7 Be6+ Kd6 Qb5 Bh2 Qc4 Bg1
K1k5/2q1Qbp1/1rn3nR/NrBP1p1b/3RPb2/4N2Q/1RNR1Pr1/Qn6 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 h5 g4 d5 gxh5 e4 e3 Rh7 cxd5 Rh6 d4 Rh8 Bd3 exd3 Kd2 Kd7 Kc3 c5 Kc4 a5 b4 f5 h4 d2 b6 a4 Kb5 c4 e4 a3 b7 c3 d6 c2 h6 a2 h5 Qh4 Kb6 Qf4 h7 Ra3 b5 Ra5 d5 Ra3 h6 Qg5 Ne2 Qh4 Ng3 Qe7 Nf1 Qe6 Ne3 Nc6 b8N+ Kd8 d7 Ra8 Ba3 c1R Bc5 Ra4 Na3 Bd6 Nac2 Bf4 Rg1 Na5+ Ka7 Qe7 b6 Rb1 b7 Rab4 Ka8 Rb5 Nc6+ Kc7 Qf1 d1B b8R Bh5 Qh3 Rb6 Rd1 R1b5 Rd4 Qf7 Rf1 a1N Rfd1 Ne7 R1d2 N1b3 Qf1 Ng6 Qa1 Re8 h8R Re6 h7 Rd6 Ne5 Nc6 N5c4 Rf6 Na5 Re6 Rf8 Qe7 h8Q Qd8 Rd1 Nd2 Rf6 Nb1 R1d2 Qe7 Qh7 Kd8 Qh6 Qd6 Rb7 Qc7 Qh8+ Nf8 Rh6 Rg6 Qh7 Rg4 Qg6 Rg2 Qg3 Ng6 Qh3 Ra6+ Ba7 Rab6 Rb8 Ke7 Rb7 Kd6 d8Q+ Bd7 Qe8 Be6 Qf8+ Kd7 Qc5 Ra6 Qe7+ Kc8 Rb6 Bf7 Rb7 Rc5 Rbb4 Rb6 Rb2 Rb4 Bb6 Rcb5 Bc5 Rb6 Ra2 Rb3 Rb2 R3b5
4N1bq/PQqQR1q1/Kbp5/2NR4/3rpn1r/n3PP2/BQ1R1n1k/4Q2N w - - 0 1 legal: proof: c4 a5 b4 f5 bxa5 d5 cxd5 h6 g4 Bd7 gxf5 Ra6 Bb2 Bc8 Bf6 Ra8 Bg5 hxg5 h4 Kd7 a4 Kd6 d4 b5 Kd2 e5 Kc3 c6 Kb4 e4 e3 g6 f3 g4 a6 g5 a7 g3 f6 g4 f7 g2 a5 g3 a6 Bb7 h5 Qe8 Ka5 b4 h6 b3 h7 b2 Qe1 Qe7 Ra2 Nd7 Na3 b1Q Bc4 Qb2 Ne2 Rd8 a8Q g1Q a7 g2 Ng3 Bc8 Qb7 Nb6 Ka6 Qc7 Nb5+ Ke7 d6+ Kf6 d7 Kg5 d5 Bc5 f8N Ne7 Nd6 Ng6 Ne8 Nf4 d6 Qa1 Bb3 Nc4 Rh4 Qg7 Nh1 Na3 Rd2 Qh2 Ba2 g1N Rh3 Bb6 Ne6+ Kf5 Rh4 Ngh3 Nc5 Nf2 Rh5+ Kg6 Re5 Qh3 Re7 Kh5 Rd5+ Kh4 Rd2 Qh2 Rd5 Kh3 Rd2 Rf8 Rd5 Rf6 h8Q+ Rh6 Rd2 Rh4 Rd5 Qf8 Qb2 Qg7 Nf6 Re8 d8R Be6 d7 Bg8 Rd2 Rf8 Ne8 Rf7 Ra8 Rf6 d8Q Rd6 Qd7+ Kg2 Rd8 Rd4 Qe6 Qh3 Rd5 Kh2 Qd6 Qhc8 Qd7 Q8d8 Re6 Qdf6 Ree5 Qh8 Re7 Qfg7
Q3Q3/qbB1R1Pn/PQ4Rr/2BN4/1n1R1K2/2pp4/RrkP3r/b3bBq1 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 b5 hxg5 f5 exf5 Ra6 c4 Rh6 Nc3 Rh4 Nd5 Rd4 cxb5 Rd3 b6 Ra3 b5 Ra4 Nb4 axb4 Qb3 Ra3 Qd1 Ra8 Ke2 Kf7 Ke3 h5 g4 e5 f4 c5 a4 d5 g6+ Kf6 g7 e4 g5+ Ke7 g6 Kf6 b7 c4 b6 b3 a5 c3 a6 h4 Ra2 b2 Qe1 b1Q Nh3 Nc6 b8B Bb7 Bc7 Rh6 Ba3 Qd7 Bc5 Nb4 Rg1 Rb8 Rg4 Bc8 b7 d4+ Ke2 e3 Kf3 e2 Qf2 Ra8 b8R e1B Rb7 Rb8 Ra7 d3 Qg1 Bd6 Qd4+ Ke7 f6+ Ke6 f7 Nf6 f8Q Nh7 g8R Bb7+ Ke3 Qg7 Qe8+ Qe7 Qf6+ Kd5+ Kf3 Qf7 f5 Qd7 Nf4+ Kc4+ Nd5+ Kb3 g7 h3 Rg6 h2 Ke4 Bf8 Qb6 h1R f6 R1h2 f7 Bd6 f8Q Be7 Ra4 Kc2 Qf3 Qc1 Rf8 Qd1 Rf4 Bf8 Qh1 Q1g4 Ra1 Qg1 Ra2+ Kd1 Rf5 Ba8 Bf4 Bc6 Qa5 Kc1 Bf2 Nc2 Qb4 Bb5 Nf6 Qc7 Rd5 Bc6 Qc5 Rb5 Qb6 Ba3 Bc5 Bb2 Bg3 Qb8 Re7 Qa7 Bc7 Ba1 Kf4 Rb2 Rd4 Nb4 Qd5 Kc2 Qh1 Bd7 Qha8 Bc6 Nd5 Bb7
B7/Q5Kp/3kqpN1/2rN3P/BB5b/1bPqrRbN/1Q2P1rQ/1nQ1n3 w - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 g5 b4 e5 fxe5 Nc6 a4 Nge7 axb5 Ng8 Ra3 Nb8 Rf3 Bg7 Rf5 Bf8 Rf4 gxf4 Kf2 Ke7 Kf3 a5 Ke4 d6 g4 a4 h4 a3 g5 a2 e6 a1B Kf5 d5 h5 f3 c6 d4 b6 d3 c7 f2 b7 d2 g6 Bd4 g7 Qe8 b5 Be3 b6 Qd7 Nh3 Na6 b8Q Bg5 b7 Qc6 Nc3 Nc5 Ba3 Bh4 Nd5+ Kd6 c3 Nf6 g8Q Ra5 Qc1 d1Q Qg2 Rg8 Bb4 Ne4 Qa7 Nd2 b8Q Nb1 Qh2+ Rg3 Bg2 f1R+ Bf3 Rf2 Rf1 Rg2 Be4 Qa6 Rf3 Qdd3 Qb5 Bb7 e7 f6 e8B Ba8 Qbb8 Bh6 Ba4 Bf4 Qbb7 Qc6 Qb5 Bb7 Qbb6 Ba6 Qbb7 Bc4 Qbb6 Kd7 c8N+ Bc7 Nce7 Bb3 Ng6 Rb5 Rf4 Re3 Qbb8 Qb6 Rf3 Kc6 Qch1 Bcg3 Qc1 Nb7 Ke6 Nc5+ Kf7 Qa6 Qe8+ Kd6 Kg7 Qc8 Qef7 Qe6 Qfb7 Qc2 Ba5 Nd3 Bb4+ Rc5 Ba3 Bc4 Qbb2 Bb3 Bb4 Qd2 Nb6 Ne1 Ba8 Qc2 Nd5 Qd3
1b1r2N1/bN2Pp1k/1nqRQ3/RP3P2/Q2n2p1/R2Q2q1/1R2N2K/2Bqrb2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Nc3 Kf5 Nb1 Ke6 Be3 Kf5 b6 c5 Kf1 g5 Kg2 a5 f4 c4 b4 g4 h4 a4 b7 d4 h6 Kg6 h7 a3 h5+ Kh6 f5+ Kg7 h6+ Kf6 Kh2 d3 Nd2 c3 Ne4+ Ke5 Nf6 Qa5 d8Q c2 d7 c1Q Ra2 Nc6 b8R d2 Qe8+ Be7 d8N Be6 b5 Qa4 Rb2 a2 Rb6 Bc4 Nb7 Ra7 Qd7 Bd6 Bg5 Bc5 e4 Nge7 Qe8 Rg8 h8Q Qa3 h7 Ra6 Qd7 Rd8 Qhe8 Bd6 h8R Bb8 Rh3 a1B Rb1 Be2 Ng8 Bd4 Rb2 Ra4 Ra6 Bda7 Ra5 Qac3 Be3 Ra1 Qa4 Qe1 Rh6 Rc1 Qd3 Nd4 Qd7 Nc8 Rd6 Nb6 Bg5 Qc6 Bh6 Bf3 Ne2 Bg2 Bg5 Qf2 Rd1 Ra1 Rc1 Rb1 Rc3 Re1 Ra3 d1Q Bc1 Qe3 Ng1 Kf4 e5 Kg5 e6 Bf1 e7 Kh5 Qe6 Kg5 Nf6 Kh6 Ng8+ Kh7 Ne2 Qg3+
1r4q1/b2B2BQ/5p1K/2p1QP2/N1rBNb2/1PPnqk1N/Q2n4/r1B1Rq2 w - - 1 2 illegal: No possible last move, all moves rejected
5n2/bBR4b/Q1P2q2/QNpNQ1nR/N1r3P1/1Rq2rn1/RpPK1bk1/8 w - - 0 1 illegal: No possible last move, all moves rejected
1r2k1B1/1p6/Br2nRp1/R2K2B1/1rPqQ3/1Qb5/QPbnq1PQ/1R2q2N w - - 0 2 illegal: No proof kernel
2b2Q1b/1k1PR3/p7/Rp1bBN2/3n1BBr/Qb1nb3/qPQPK2B/1Rr5 w - - 0 1 illegal: Other
1k3KR1/2p3rp/P2bB2P/1nrb2nQ/2QN1n2/3P1Q1N/b3R3/2qN1RnN w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 g5 f4 Qd6 f6 Qd8 f5 Kf7 Ba3 Ke8 Bd6 Nh6 Be5 Ng8 Bf4 gxf4 Ke2 Kd7 Kf3 b5 Ke4 e5 g4 f3 a4 b4 h4 b3 d3 f2 d6 b2 Kd5 e4 f7 e3 h5 e2 g5 e1N g6 Nf3 h6 Ba6 g7 Kc8 Ke6 Ne7 g8R Nd7 f6 Bb5 a6 Kb8 a5 Qe8 a7+ Kb7 a6+ Kc8 Nc3 b1B Ra2 Nfe5 Re2 Nc4 Nh3 Rb8 a8Q Ba4 Qc6 Na3 Qc4 Rb5 Bg2 f1N Bd5 Nd2 Nf2 Nf3 Rf1 Kb8 Nh1 Nde5 d7 Ba2 d8N B4b3 Nc6+ Ka8 Nd4+ Kb8 Nf2 Ng1 Nh1 Bg7 f8N Nef3 f7 Be5 Ng6 Bd6 f8Q Rc5 Qf5 Nb5 Nf4 Ng6+ Kf6 Ng5 Kg7 Qd8 Nh3 Nf4 Be6 Qe8 Qg4 Qd8 Qf3 Qe8 Qb4 Bd5 Qc4 Qd8 Qe1 Qe8 Qh4 Qd8 Qhh5 Qe8 Bc8 Qe3 Nd1 Qc1 Be6+ Ka7 Rc8 Rf8 Rd8 Rf6 Rh8 Rf7+ Kg8 Re7 Kf8 Kb8 Rg8 Rg7+
6Q1/2n1rR1q/n2R1KQ1/1bpP3b/2P2r1R/PnQp1N2/bBRB4/3k2bB w - - 0 1 illegal: No proof kernel
K5nn/2bR1b2/1qQRQ2P/1p2Br2/1P1Q3N/Ppr2n1k/nR1NbQ2/4N3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 Bg2 a4 Bd5 d3 Bb3 axb3 cxd3 Qe7 d4 Qd6 d5 Qd8 Kf2 Kd7 Kf3 b5 Ke4 g5 h4 c5 d4 f6 e6+ Ke7 a3 g4 h6 g3 h5 g2 d6+ Ke8 Kd5 c4 e4 f5 d7+ Ke7 h7 Kf6 e7 f4 e8Q Kg5 h6 c3 e5 c2 e6 Bd6 e7 Nc6 Qd2 Kg4 Rh2 f3 Bb2 c1N Qf2 Ba6 Nd2 Qc7 d8Q Ne5 Qc6 Ra7 e8Q Na2 Qe6+ Kf4 Rd1 Nf7 Bc3 Be5 Kc5 Bc8 d5 Qd6+ Kb6 Rc7 Qdd7 Bb7 Ka7 Qc5+ Kb8 Qb6 d6 Bc8+ Ka8 Kg5 Qe1 f2 Ngf3+ Kf4 Qd8 Kg3 d7 g1N Qe2 f1B Ne1 Bf4 Be5 Nf3 Qe3 Bc4 Qdf6 Be2 d8R Bd7 Qd4 Be8 Rd7 Rc8+ Bb8 Bc7 Qff5 Nf6 Qfc5 Rf8 h8N Ng8 Ng6 Nh8 Nh4 Rf5 Qf2+ Kg4 Rg2+ Kh3 Qcd4 Bf7 Rd6 Rf8 Rd7 Bd8 Be5 Re8 Rg6 Re7 Rb1 Bc7 Rb2 Re8+ Rd8 Re7 Rg7 Rd7 Rh7 Rd5 Rd6 Rc5 Rg7 Rc3 Rh7 Bg6 Rhd7 Bf7
2bnRrQ1/2B1RBR1/R2pn1pn/1Q3N2/2B2PP1/8/b1nqKQP1/kr2b3 w - - 0 1 illegal: No proof kernel
8/3nQ1P1/kq1p1pN1/B1nR1BQ1/P1b1Br2/1Q2r3/R2P2RR/K1b1r1nr w - - 0 1 legal: proof: f4 a5 b4 e5 bxa5 g5 fxe5 c6 h4 Bd6 hxg5 Bf8 Nc3 c5 Nd5 Bd6 Nb4 cxb4 Rb1 Bc5 Ra1 Bf8 c4 b5 g4 h5 a4 f6 e4 d6 c5 Kd7 a6 Kc6 g6 b3 a7 Kb7 c6+ Ka6 g7 b2 e6 b1R e5 h4 e7 h3 e8Q h2 c7 Be6 c8Q+ Kb6 g5 b4 g6 b3 Nf3 b2 Ra2 Bf7 e6 Nd7 e7 Ne5 Bd3 Nd7 Bf5 Rh4 Qc5+ Ka6 Qb3 Bc4 Kd1 Qb6 Kc2 Rf4 Nh4 Nh6 g8R Nf7 Kc3 Rc8 a8B Nd8 Bae4 Ne6 Qg1 Ra8 Qg5 Bh6 Qd8 Ra1 e8R b1N+ Kb2 Nc3 Qe7 Ne2 Rc8 Ng1 Rc5 Re8 Rd5 Rd8 g7 Rc8 Rh8 Re8 Ng6 Nec5 Rh7 Nh3 Rf1 h1R Rf2 Ng1 Rg2 Rb1+ Ka3 Ra1 Bb2 Re1 Bc3 Re3 Kb2 Re1 Qh5 Bg5 Qh6 Bh4 Ba5 Bf2 Qg5 Bd4+ Bc3 Re3 Rhh2 Be5 Kb1 Bd4 Bb4 Bb2 Ba5 Bc1 Ka1 Re1 Qd8 Re6 Qe7 Re5 Bb1 R5e2 Bbe4 Re3
Q1Q2n1r/1rR1K1r1/pp2P1Q1/1q1Q2R1/3nn2R/1P2BB1b/P1b5/N1Bn1k2 w - - 1 2 legal: proof: f4 e5 c4 d5 cxd5 h5 g3 f6 Nc3 Be7 Ne4 f5 Nf2 Bg5 Ng4 hxg4 fxe5 f4 Bg2 f3 Bf1 Bf4 gxf4 Rh5 Qb3 Rh3 Qd1 Rh8 Kf2 Ke7 Kg3 g5 d4 c5 h4 a6 e4 b6 b3 c4 h5 c3 d6+ Ke6 h6 c2 f5+ Kd7 h7 Kc6 e6 f2 f6 Qd7 e5 Kd5 e7 Ke4 e8Q Qc7 e6 Ra7 d5 Bb7 f7 Qc6 f8Q Nf6 d7 Qb5 d8B Nbd7 Be2 f1B d6 Bh3 Nf3 Bd5 Qff7 Rb7 Rg1 Nf8 d7 Bc4 Bc7 Bd3 Ne1 Kd4 Qc8 Ne4+ Kh2 Kc3 Qg6 Kd4 Bf3 g3+ Kh1 g4 B7f4 g2+ Kh2 Nd2 Kg3 Ne4+ Kh4 g3 Qa8 Kc3 Bce3 c1N d8Q Bc2 Q1d5 Nd3 Rc1 Nb2 Kh5 Nd1 Kh6 Rb8 Kg7 Rb7+ Q8d7 Qe2 Kf7 Qb5 Rf1 g1R Ke7 g2 Bg5 Rh1 Rg1 Rg8 h8R Rh2 Rh4 Rh1 Rf1 g1N Bgf4 Ne2 Rg1 Nd4 Rg5 Rb8 Ng2 Kd3 Qc8 Bb1 Rc2 Rb7+ Rc7 Bc2 Bc1 Rh2 Ne3 Rh1 Nc4 Rh2 Bfe3 Rh1 Na3 Rh2 Bh1 Ke2 Bf3+ Kf1 Qf7 Bb1 Nc2 Rh1 Na1 Bc2 Rh6 Rg1 Rh4 Rh8 Rf5 Rg6 Rg5 Rgg8 Qg6 Rg7+
Q2r3q/1pK1n2Q/1B1P2n1/N1Q1n1k1/b1b1pNr1/1n2PR2/1PB2Q1N/2b4B w - - 1 2 legal: proof: f4 g5 fxg5 h5 c4 d5 cxd5 Bg7 g4 Bh6 g6 Bf8 a4 Qd7 g5 Qb5 Ra3 Qd7 Rg3 Qd8 Rg4 hxg4 Na3 Rh6 Nb5 Rh7 Nxa7 Rh8 Kf2 e5 Ke3 Ke7 Ke4 c5 d4 c4 h4 c3 g7 f6 a5 g3 d6+ Kf7 Kd5 Kg6 a6 c2 d7 f5 h5+ Kf7 g6+ Kf6 h6 e4 h7 g2 Qd2 f4 Nf3 g1N Rh3 Qe7 d8Q Bg4 Qc7 Nh6 g8Q Bc8 g7 Qe8 Bg2 Qa4 Nh2 f3 Bh1 f2 Qc5 f1B Rf3+ Nf5 Nc6 Bd7 a7 Nh3 Na5 Nc6 e3 Kg5 Qf2 Nfe7+ Kd6+ Ne5 d5 Qd4 Bd2 c1N Kc7 Rd8 a8Q Nb3 d6 Bc4 Qf7 Nf4 g8B Nfg6 Bc3 Ba4 Qg7 Qd3 Bd4 Qc3 Be6 Rg8 h8N Bcb5 Qh7 Bg7 Bf7 Bc4 Bd5 Rgf8 Bc6 Rf4 Bd5 Rg4 Be6 Nf8 Ng6 Bh8 Nf4 Nfg6 Bg8 Nc1 Qb6 N5c6 Qb5+ Bd5 Bb6 Qg7 Qb8 Qh6 Qc4 Bc3 Qh8 Nce5 Qa8 Bd2 Qc5 Qh7 Qg7 Qh8 Qh7 Bdb3 Bc4 Ba2 Bd3 Bc4 Bb1 Nb3 Bc2 Bc1
2R1R3/1k1b4/RN3p1b/RQK2p2/2Pb1PN1/1Q2rq2/2P3rb/Q2NnqnB w - - 0 1 legal: proof: g4 h5 gxh5 b5 a4 c5 axb5 c4 d3 Rh6 dxc4 Rh7 Bg5 Rh8 Bf6 exf6 Kd2 d5 Kd3 Kd7 Kd4 Kc7 h4 a5 f4 g5 b4 a4 e4 f5 e5 g4 b6+ Kc6 b7 a3 b5+ Kb6 h6 g3 e6 g2 h5 f6 h7 a2 e7 Ra5 e8Q Bh6 Nh3 g1B+ Nf2 Ne7 Nc3 Na6 b8N Ng6 Nd7+ Kb7 b6 Ra3 Bg2 Bh2 Ng4 Nb4 Kc5 Rg8 h8R Ne5 Qd4 Rg7 Nd1 Nf3 Re1 Rg6 Re6 Re3 Bh1 Ng1 Rc6 Rg5 Qee5 Rg6 Re8 Rg5 Qc3 d4 Qb3 d3 Qd4 d2 Rd6+ Ka6 b7+ Ka7 Nb6 Bd7 Qdc3 Qa8 b8Q+ Ka6 Rde6 Qf3 Qbe5 Kb7 Rd6 Bg7 h6 Bf8 h7 Bh6 h8R Nd3+ Kd4 Ne1 Qeb5 Rg7 Kc5 Rg8 Rc8 Rg5 Rhe8 Rg8 Rc1 a1B Qd4 Bb2 Ra1 Rg7 Ra5 Bc3 Ndf2 d1Q Qe5 Qd3 Nd1 Qf1 Rde6 Bd2 Qa1 Bc3 Rca8 Rg5 Rec8 Rg8 R8a6 Rg5 Ree8 Rg7 Ne5 Rg2 Ng4 Bd4+
8/nnp1Np1k/b2bQPn1/2P1B2q/n6P/K2QQ2B/1B1n1RB1/rRbR4 w - - 0 1 illegal: No possible last move, all moves rejected
5q1Q/1b5q/pb5r/2qB1np1/P4q1k/RR3QrB/PqBQ2PB/3N1KR1 w - - 0 1 illegal: No proof kernel
2Q1q3/3Qp1Q1/n1R1bB2/1B3P1P/R1Rrn1pr/Bp2b2k/1P1N4/1B1r1bK1 w - - 0 1 illegal: No proof kernel
r1N3k1/3p1r2/2qKB3/2N1Rp2/1PQQb1nB/P3pPQn/1bBNN3/1r2n3 w - - 0 1 illegal: No proof kernel
3B1Q1R/2BNQp2/1n3pQ1/2qrn1p1/3P1KN1/N1Pr4/b1Bn1bP1/2kb2Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1nq5/3Nb2p/Q1b4P/q3Np2/QB1BnP2/3rqP1p/1B2B2N/KRQ2r1k w - - 1 2 legal: proof: c4 d5 cxd5 b5 f4 Qd7 a4 Qg4 axb5 Qf3 exf3 g5 h4 Bg4 b4 Na6 g3 Nb8 h5 Bf5 Rh4 gxh4 Ke2 Kd8 Na3 Ke8 Qb3 Nc6 Bb2 Bc8 Nh3 Na5 Bg2 Nb7 Rh1 Be6 Bc1 Bc8 Bf1 Rb8 Ng1 Ra8 Qd1 Nd8 Nb1 Nc6 Ke1 Nb8 d4 Kd7 Kd2 Kd6 Kc3 a5 Kb2 f5 b6 c5 b7 e5 b5 a4 b6 c4 g4 e4 h6 e3 g5 e2 g6 e1Q g7 h3 Na3 Nd7 b8B+ Ke7 b7 Kf6 d6 Qg3 d5 Ra5 Ne2 Kg6 Ba7 Kh5 b8N Qg6 Ng3+ Kh4 Be2 Qe8 Nf1 Bb7 Nh2 Ngf6 g8Q Ne4 Qgg1 c3+ Kb1 Rg8 Nc4 Qc8 Ne5 a3 Bb2 c2+ Ka2 Rg3 Bad4 c1Q Qe3 Rg6 Qdb3 Qd2 Rb1 Rg1 Qec3 Kg3 Qc1 Kg2 Qb4 Ndc5 d7 Rf1 d8B Nd7 d6 Kh1 Be7 Qe3 Qb3 Rc5 Qb4 Rc3 Qa5 Ndf6 d7 Rd3 d8Q Bc6 Qdb6 Nd7 Bb4 Be7 Qba7 Ndc5 Nbd7 Na6 Qb5 Nb8 Qaa6 Nc3+ Kb3 a2 Ka3 a1Q+ Kb3 Qa5 Qa4 Nd1+ Ka2 Nf2 Ka1 Ne4
2Nk4/p1q3p1/4Qq2/RbQP4/R2rBp2/1RbnBP1B/r3QPqR/2K1n3 w - - 0 1 illegal: No proof kernel
1Qr1B3/Q3B2N/N3nb1n/PpN2q2/R1pPBqb1/rp2B2K/k1P1q3/2Q5 w - - 0 1 illegal: No possible last move, all moves rejected
K2NBn2/B1NQb1kp/1Bp2n2/3PQ1B1/rPp3bP/3q1R1N/6rr/1q2Q3 w - - 0 1 illegal: No proof kernel
n2br3/n1Pp2rR/R1BbQB1p/n4nQ1/1k1K2p1/Rb3NP1/3P2B1/4B2Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 b4 g4 Nc3 Qb6 Nd5 Qa5 axb5 Qa2 b6 Qb2 b5 Qf6 Nb4 Qg5 hxg5 cxb4 Ke2 a5 Kd3 e5 f4 Ke7 c4 Kd6 f6 Kc5 b7 a4 f7 b3 b6 a3 f5 a2 f6 b2 g6 b1N g7 Nc6 b8B Nce7 b7 Kb4 c5 e4+ Kd4 e3 c6 e2 Bb2 e1N Nf3 Na3 Bg3 Nd3 b8R+ Bb7 c7 Nd5 Be1 Nc1 g3 Nb6 Bg2 Bd6 f8Q Bd5 f7 Nh6 g8B Bb3 Qe8 Ra5 f8Q Rg5 Qe3 Rg7 Bd5 Rhg8 Qff4 Re8 Qe6 Nb5+ Ke4 Na8 Qg5 Nf5 Bf6 h6 Bc6 Ree7 Rh8 Re8 Rh7 Na7 Rf1 Nd3 Rf2 Ne5 Re2 Nc4 Re3 Na5 Rc3 Ba4 Ra3 Bb3 Bf2 Ba4 Qh1 Bd1 Be1 Bb3 Rd1 a1B Kd3 Bae5 Rda1 Be7 Ke4 B5d6 Kd3 Ne3 Kd4 Bd8 R1a2 Nb7 Ra6 Na5 Ra3 Nf5+
2B2b2/bQ1pBkn1/1K1P1qb1/5R1p/r1PBN1B1/Q1pN4/1nNP3p/1rQ5 w - - 0 1 illegal: No proof kernel
Nrn2R1Q/2BPkn1B/3p2p1/pNQP3q/3Pb1r1/n3N3/4BKp1/bQ5Q w - - 0 1 illegal: No proof kernel
R1Q3B1/1Np4p/r1pqp2N/b5QP/n3N3/P2Q1R1R/3QP1rn/k3K1bb w - - 0 2 illegal: Other
1N4nR/B3Q3/n3Q2Q/R1q3Pb/1NKNpPp1/b1pp2r1/4rkP1/1R2b1N1 w - - 0 1 illegal: No proof kernel
r3QKQN/4R1QN/p2kp3/6b1/1NpnPpNR/Pq5b/B3bP2/2r2nR1 w - - 0 3 legal: proof: g4 g5 h4 h5 gxh5 c5 hxg5 Nf6 b4 Ng8 bxc5 Rh7 Rh4 Rh6 Rh1 Rh8 c4 d6 c6 Qb6 c5 Rh7 c7 Rh8 c6 Qd4 Ba3 Qd5 Bc5 dxc5 Na3 Qd7 Nb1 Qd8 d4 f5 Kd2 b5 Kc3 b4+ Kc4 e6 e4 Ke7 g6 f4 d5 a6 d6+ Ke8 d7+ Ke7 g7 b3 h6 b2 a3 Nf6 g8Q Ne8 h7 Ng7 Nc3 b1B Rh4 Qe8 d8N Bc2 Nh3 Nh5 Qd4 Ng3 Nf7 Ne2 Qdg7 Ng3 Nh6+ Qf7 Ng5 Kd6 Na2 Qh5 Nb4 Qg6 Ng4 Bd7 c8Q Bd1 c7 Be7 Qce8 Nc6 c8R Nd4 Rc7 Qh6 Bd3 Be2 Rg1 Nf1 Rb7 Ba4 Rc7 Bad1 Rb7 Bf3 Bb1 Bg2 Ba2 Bh3 Rc7 Bf6 Re7 Bf3 Qg8f7 Rf8 h8N Qg6 Nh7 Bg5 Qfg8 Be2+ Kc3 Nc6 Kb3 Nd4+ Ka4 c4 Ka5 Qf5+ Kb6 Qa5+ Kb7 Qa4 Kb6 Qb3 Kb7 Ra7+ Kc8 Rf6 Kd8 Rh6 Qef7 Rg6 Ke8 Rh6 Kf8 Ra8+ Qe8 Nh2 Ra1 Bg2 Rh3 Rh4 Ne5 Rg4 Rh6 Bh3 Rh4 Rg1 Ng4 Rh1 Rd1 Rg1 Rd3 Rc1 Rg3 Nf1 Rg2 Ra7 Rg1 Ra8
1k1n1rNb/2p1P2K/3n1N2/1N1PpQB1/q2Q2BN/1bP1p2Q/1r3pB1/r4R2 w - - 0 1 illegal: No proof kernel
2B2Q2/4p1n1/pr1bPRq1/QP3QB1/3kB3/K1Np2p1/P1b3n1/r1rN1BN1 w - - 1 2 legal: proof: d4 b5 c4 g5 cxb5 h5 f4 c5 fxg5 Na6 dxc5 Nb8 g4 Bg7 b4 Rh6 g6 Ba6 g5 Bf8 Nd2 Bc8 Rb1 Rh7 Rb3 Rh6 Rg3 Rh8 Rg4 hxg4 e4 d5 h4 Kd7 g7 Ke6 g6 Ke5 h5 f5 b6 d4 h6 g3 b5 d3 h7 a6 b7 f4 c6 f3 c7 Nf6 g8N Ra7 g7 Bf5 c8B Ng4 Rh6 Qd7 Nc4+ Kd4 Kd2 f2 e5 Qc7 e6 Qc5 Qf3 Nc6 b8Q Rc7 Nb2 Ne3 Nf6 Ng2 g8B Bg4 Qf5 Bd1 Qb6 Bc2 Ne4 Bg7 Qa5 Be5 Rf6 Bd6 Nc3 Qd5 Nbd1 Qe4 Bf7 Rb7 Bh5 Rb6 Bf3 Qg4 Bd5 Qg6 Be4 Rf8 h8Q Re8 Be2 f1R Qf8 Re1 Bf1 Rd8 Ba3 Rd7 Kc1 Rc7 Bd7 Rc8 Kb2 Rc7 Ne3 Ra1 Ned1 Nb8 Bc8 Nd7 Bb4 Rc5 Ka3 Rcc6 Rf7 Nf6 Bc5+ Kc4 Bb4 Ne8 Rf6 Ng7 Bc5 Bf4 Be3 Bd6+ Kb2 Rc5 Bg5 Kd4 Ka3 Bb1 Nd5 Rc3+ Kb2 Rc1 N5c3 Bc7 Kb3 Bc2+ Ka3 Bd6+
5RQn/N1Q3nQ/pr1Bp2Q/7R/1p1KP3/P3qb1B/pP3qBR/1kqr4 w - - 1 3 illegal: Other
Q5Bk/Q1B3N1/p3p1r1/1qr1B1Nr/4np2/PN5b/PK2Pp1R/b3BQq1 w - - 0 1 illegal: No possible last move
1k2nq2/R2P1Nq1/2R3BR/Rp3N1Q/3PR3/3N1rq1/1bK2RPq/1q6 w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 b5 b4 Be6 bxa5 Kf7 a4 Bc8 a6 Ke8 a5 Ra7 Ra2 Rb7 Ra1 Rb6 axb6 Qd7 Be2 Qd6 Bf1 Qd8 b7 Nc6 b8N Bb7 axb7 g5 f4 Qc8 f6 Qd7 f5 Qd8 h4 Nd4 Bb2 Ne6 Be5 Bg7 Bf4 gxf4 Ra7 Bh6 Ra1 Ng5 hxg5 Bf8 d4 e5 Kd2 c5 f7+ Ke7 f6+ Kd6 g6 Kc7 d6+ Kb6 d7 Kc7 g7 h5 Nc6 e4 b8R c4 Nh3 f3 Ng5 f2 Bd3 f1Q Ne5 h4 Kc2 h3 Nd2 h2 Rb6 e3 Ra5 e2 Rc6+ Kb8 Ndf3 e1Q Bg6 c3 Nd3 Rh3 Nh4 Rf3 Nf5 Ba3 f8R Qg3 f7 Nf6 g8R Bb2 Re8 Qc8 Re5 Qf8 Re4 Ne8 Rh8 Qh6 f8R Qg7 Rh6 Qff2+ Qe2 Qf1 Rg1 h1Q Nf7 Qhh2 Ra7 Qff2 Rga1 Qf1 R1a5 Qff2 Kb3 c2 Qd1 c1Q Qe2 Re3 Qd1 Qa1 Qh5 Qff4 Kc2 Rf3 Ng5 Qd6 Rf6 Qdf8 Nf7 Rf1 Ne3 Qae1 Rf2 Qa1 Nf5 Qa2 Rfe2 Rf3 Rf2 Qb1+
6NB/1PP2bB1/2r2R1q/nb1RNR1P/2NK4/4r3/1RnRq3/2krnB2 w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 h5 a4 a5 bxa5 c5 g4 e6 gxh5 b4 d4 c4 d5 c3 a6 Bc5 a5 Bd4 Qd2 Bb6 axb6 cxd2+ Kd1 Kf7 a7 Ke8 Ke2 d1R b7 Rd3 Ke1 Rh3 Ba6 Rc3 Bf1 Rc6 dxc6 Rh7 Ra2 Rh6 Ra1 Rh8 Kd2 Ke7 Kd3 Kd6 f4 Kc5 c4 d5 h4 g5 c7 e5 h6 g4 h5 g3 f6 b3 h7 Kb4 c5 d4 f5 b2 c6 Kb3 f7 g2 f8N e4+ Ke2 Kc2 f6 d3+ Ke3 d2 f7 d1R Nf3 Qd6 Rh2 Na6 Ng6 Nb4 f8R Ne7 Rf6 Re8 h8B Be6 c8R Bf7 c7 Nec6 Nfe5 Na5 Nd2 b1B Ne7 g1Q+ Rhf2 Qh1 Rd8 Qh2 Ng8 Qc6 R6f5 Qh6+ Kd4 e3 Bb2 e2 Ra2 e1N Rd5 Rad8 a8R Rd6 Rd8 Rc6 Ba1+ Kc1 Rb2 Bd3 Ndc4 Re7 Rfd2 Qe2 R8d6 Re8 Rdf6 Ree6 Ng4 Re3 Nge5 Nbc2+ Kc3 Ng2 Rbb5 Nb4 Re6 Nc2 Nf3 Rd6 Nb2 Re4 Rb4 Ba6 Nc4 Qf2 Kd3 Re2 Bag7 Bb5 Ref6 Rc6 Rb2 Nge1+ Kc3 Re4 Ne5 Qe2 Ne7 Na3 Ng8 Re3+ Kd4 Nac2+
4rb1N/rNk1P3/5rr1/1PN1r2B/1R5R/r3b3/1R3nrP/2N1QNNK w - - 0 1 legal: proof: c4 d5 cxd5 Kd7 a4 b5 axb5 Na6 e4 Nb8 d6 Ke6 d7 Kd6 d4 Ke6 f3 Kf6 d5 e5 d6 Qe8 Bd3 Qe6 Bf1 Qd5 exd5 e4 g4 e3 b6 Ba6 Ra2 Bd3 Qd2 Be4 fxe4 Kg6 Qd4 f5 Ra1 f4 Qd1 Kf7 Bd2 h6 Bc3 Nc6 Bf6 Nd4 Bg5 Nf5 gxf5 hxg5 d8N+ Ke8 b4 Kd7 f6 a5 b7 c5 b8R f3 e5 e2 Kf2 e1R f7 g4 Ra4 g5 Nc6 c4 Nd2 c3 Be2 c2 Nd4 c1B N4b3 Nh6 Nf1 Ra7 b5 Bf4 Rb4 a4 Nc1 a3 Rb6 a2 e6+ Kc8 d7+ Kc7 d8N a1R e7 R1a3 Nb7 Be3+ Kg3 f2 Kg2 g3 Bh5 Rg8 Nc5 Ng4 Rh6 Re2 Qe1 Rh8 Bg6 Rg8 Rh4 Rh8 Kf3 g2 Bh5 Rg8 Nh3 g1R d6+ Kc8 d7+ Kc7 d8N Rg2 Ng1 Rh8 Ndb7 Rg8 Nd2 f1R+ Ke4 Nf2+ Kf3 Bh6 Rb2 Re8 f8N Bg7 Ng6 Bf8 N5b3 Bb6 Nh8 Re5 Re4 Be3 Rh4 R7a6 N3c5 g4+ Ke2 g3 Kf3 Rg6 Qd1 Re1 Nf1 Rga6 Qd2 Ra7 Qb4 Rd1 Qe1 Rd6 Nh3 Bfh6 Rbb4 Rg5 Qe2 Rg1 N1d3 g2 Nd2 Rga1 Rhb1 R3a6 Nf1 g1R Nc1 R1a3 Qe1 Re5 R1b2 Rg4 Ng1 Bf8 Ng3 Rdg6 Kg2 Nd1 Kh1 Raf6 Nf1 R4g5 Rc2 Rg2 Rcb2 Nf2+
2rR1b1B/K1q2p2/3R1bR1/1B2b2P/NBNN4/q1pP4/6NP/b1N1rk2 w - - 0 1 legal: proof: e4 b5 d4 d5 exd5 e5 f4 h6 g4 e4 a4 Ba6 Qd2 Nc6 Qg2 Ne5 fxe5 Nf6 Qg3 Nh5 gxh5 Bc8 Qg5 hxg5 axb5 Bg4 Bh3 Be2 Bf1 Bd3 cxd3 Ba3 Ne2 Be7 Ng1 Bf8 Kd2 Ke7 Kc3 c5 Kc4 a5 b4 g4 d6+ Ke6 d7 Kf5 e6 g5 b6 a4 Kb5 g3 b7 Kg4 b8N a3 e7 e3 e8N a2 d5 c4 d6 e2 Nc6 e1Q Bg2 Ra3 Bd2 Qc8 Kb6 Qe6 d8N Ra7 b5 Be7 d7 Qd5 Nc3 Ra5 Nge2 Qd6 Ne6 Bf6 d8R Qa3 Na4 Qa8 Bd5 Kh3 Rhg1 g2 Nc1 g4 Nd6 g3 Bb4 c3 Bc4 Rf8 Rb1 a1B Ncd4 Ra7 Rb2 Re7 Rf2 Be5 Rf6 Qe4 Ka6 Qc6+ b6 Ree8 Rg6 Rh8 Rf1 g1B Ka7 Kg2 b7 Be3 b8B Bh6 Rf3 Bf8 Bb5 Kg1 Nc4 g2 Re3 Kf1 Nf4 g1B Ng2 Bf2 Rgd6 Bh4 Rg3 Bhf6 Rg6 Bg3 Rd5 Re1 Bf4 Rg8 R5d6 Rh8 Bh6 Bge5 Bg7 B8e7 R8d7 Rc8 Bh8 Bf8 Rd8 Qc7+
BB2bB2/qrNN1PR1/2q2RN1/Rrn3n1/K1b4P/1r4bk/1P4NN/4r3 w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 h5 cxd5 f5 exf5 a4 g4 a3 gxh5 a2 Qc2 Qd6 Na3 Qd8 Qb1 axb1B Kd1 Kd7 f4 g5 d4 c5 h4 e5 f6 c4 b6 c3 f7 g4 b7 e4 h6 g3 d6 Ke6 d5+ Kf5 d7 Kg4 d6 e3 f5 g2 f6 Ne7 h7 Qe8 d8R Be6 d7 Bh6 f8B Nec6 f7 Bf4 Nc4 Nd4 Nf3 g1Q Ra5 Na6 b8N Ba2 Nh2+ Kg3 Rc8 Nc5 d8N Qc6 Nd7 Nf3 Kc2 e2 Bg2 e1R Ne3 Ng5 Bd2 Bed5 Ne6 Rb8 Nc7 Bac4 Rd8 Rg8 h8N Rb7 Ng6 Bd6 Be4 Kh3 Ng2 Bg3 Bf4 Rh8 Re8 Rh5 Re6 Bb5 B4d6 Bdc4 Rf6 Qd4 Rg1 Re3 Kb1 c2+ Ka1 Rb3 Ka2 c1R Bf4 Rb4+ Ka3 Rb1 Na8 Rd1 Bb8 Re1 Nc7 Rb3+ Ka2 Nge6 Ra3 Na4 Bc2 Qf3 Ne7 Nd8 Ne3 Bd6 Rg7 Rb6 Nc5 Be8 Ng6 Bg3 Nd7 Ne6 Be4 Rhb5 Ng2 Ng5 Bb7 Qc6 Ba8 Nc5 Ra5 Nd3 Rf4 Rb7 Rf6 R3b4+ Ka3 Rb3+ Ka4 Qdc5 Rf1 Qa7 Rf6 Nc5+
2b1nQ1r/P5Rn/1rb2NNN/3R1N2/2N2R1P/1q4r1/3n1nNP/q2kB1K1 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 d5 c4 e6 cxd5 Ne7 g3 Ng8 Bh3 Be7 Bg4 Bh4 gxh4 hxg4 Kf1 Ke7 f4 Kf6 d4 g5 a4 c5 d6 b5 d7 g3 a6 e5 a5 g4 d5 e4 d6 c4 Ne2 b4 Bd2 b3 Na3 e3 Nd4 b2 Nac2 b1B Ra4 c3 Ne1 c2 Rg1 c1R Qf3 Qb6 d8R Rc3 d7 Qb3 Rc4 e2+ Kg2 Kg7 f6+ Kh6 f7 Kh5 f5 Be4 f6 Re3 f8N Bc6 f7 Nf6 Nh7 Ne8 Nec2 e1Q f8N Qeb1 Be1 Qa1 Kf1 Rd3 Ne3 g2+ Kf2 Rc3 Qf6 Ra7 Ndf5 Rb7 Rf4 Rb4 a7 Rb5 a8N g3+ Ke2 Rd3 a6 Rc3 Rh1 g1N+ Kf1 Nf3 a7 g2+ Kf2 g1N Nb6 Nd2 Nbc4 Rb6 Qg7 Ne2 Rg1 Ng3 Rg2 Rd3 Kg1 Nh1 Rg3 Rc3 Ng2 Nf2 Qf6 Rf3 Rg7 Re3 Ng6 Rg3 Rf3 Kg4 Qf7 Nf6 Qf8 Na6 Rf4+ Kh5 Re8 Nc7 Re5 Nce8 d8N Qbb2 Nf7 Qb3 Rf3 Kg4 Rd5 Qc1 Re3 Qa1 Re4+ Kf3 Rf4+ Ke2 N7h6 Kd1 Nce5 N6e4 Nc4 Ng5 Nf6 Nh7
1KBBb3/n1NR1PB1/B3qN2/2n2QP1/1bbBbb1k/4b1r1/2B4P/q4N2 w - - 0 1 legal: proof: e4 f5 d4 c5 dxc5 b5 a4 g5 axb5 a6 f4 Nc6 fxg5 f4 Ke2 Nb8 Kf2 Qb6 Ke1 Qd8 g4 h5 b4 a5 g6 Rh7 g5 Rf7 Ra3 Rf6 Rg3 Rf5 Rg4 hxg4 exf5 Ra6 Ke2 Rf6 Kf2 Rf7 Ke2 Rh7 Ke1 Rh8 Ke2 e5 Kd3 Ke7 Kc4 d6 Kd5 f3 c4 a4 c6 f2 c5 a3 f6+ Ke8 b6 a2 g7 Kf7 b7 Kg6 c7 Kh5 b5 a1B b6 e4 c6 e3 f7 e2 Be3 e1Q Nh3 Na6 b8B Qd7 b7 Be5 Nf4+ Kh4 Bd4 g3 Nd2 g2 Ne6 g1B Qc2 Nc5 Bd3 Bf4 Nf1 Qa1 Qb1 Qe7 Bc2 Bd7 c8B Be8 Bc7 Qf6 b8B Ne7+ Kc4 d5+ Kb5 Qh6 Ba6 Nc8 g8N Na7+ Kb6 Qg6 Bg7 d4 Nf6 d3 Bd8 d2 c7 d1B c8B Bf3 Be5 Be4 Kc7 Qf5 Kb8 Be7 Ng3 f1B Nc7 Bge3 Bd4 Bc4 Nf1 Qe6 Rg1 Nb7 Qb5 Bb4 Rg2 Nc5 Rd2 Kh3 Qd7 Rh4 Qd5 Rg4 Qf5 Kh4 Be5 Qc1 Rd7 Rg3 Bd4 Qa1
n1q3nb/2N4R/RNKn1k2/5P2/r1bPR3/n2bqBPR/1Q2RN2/1bR5 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 a5 b3 Ra6 Ba3 Rc6 Bd6 Rc3 Bf4 Rg3 hxg3 gxf4 Kf2 Kf7 Kf3 h5 Ke4 c5 d4 e5 b6 h4 b4 h3 b5 f3 d6 a4 Kd5 f2 d7 e4 b7 h2 b6 c4 g5 a3 Qc2 c3 Be2 f1B Nd2 a2 Nh3 e3 Bf3 e2 Qb2 e1N Nf2 c2 Nc4 Bd3 Rc1 Na6 b8R a1N b7 Nb3 Kc6 Nbc5 Nb6 Nc7 Ra8 Ne4 b8N Bg7 Na6 Nd6 Ra7 Na8 Nc7 Qf8 d8R Bca6 Re8 Bac4 Re4 Qc8 Ra6 Rh7 Re2 Bh8 Re4 Ng2 Rhe1 h1B R1e2 Ne1 g6+ Kf8 f7 Kg7 Re7 Kf6 f8R+ Rf7 g7 Bg2 Rca1 c1Q R7e4 Qe3 Rc1 Nc2 Rd8 Na3 Rd7 Bf1 Rde7 Bb1 Rd7 Nh6 g8R Rg7 Rge8 Ng8 Rh4 Re7 Rh3 Re5 Ree7 Ra5 Re4 Ra4 Rde7 Bcd3 Reh7 Bc4 Rec2 Bfd3 Rd2 Qd8 Re2 Qc8
2b4K/Bk1n1Prq/3p1bP1/1q4N1/R1rQ2Rb/5NP1/1Rnn4/1R1R2NR w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 e5 Kc3 h5 f4 a5 b4 e4 Kd4 h4 Ke5 a4 c4 h3 g6 a3 f6 h2 b6 a2 b7 e3 f7+ Ke7 c6 e2 f5 e1Q+ Be3 Rh7 c5 Ra3 c7 Na6 b8R Qh4 c6 Ra5+ b5 Qe1 Nd2 Qe2 Ndf3 Qb2+ Qd4 Qc2 Rd1 a1B Bd3 Bh6 f8N Qe8 Ne6 Rg7 Neg5 Ra4 b6 Rc4 b7 Qb3 Ra8 Nf6 b8R Qa4 Rb2 Nb4 Bb1 Qb3 Ra4 Nc2 Bf2 Bb7 c8R Qb5+ Qd5 Ba6 Rb8 Bc8 Ba7 Qh8 Rb7 Kd8 Rb8 Kc7 Qc5 Nd5 Qd4 Nb6+ Kf6 d6 Rb7+ Kd8 c7+ Kd7 Rb8 Kc6 Ne4 Be3 Neg5 Qh5 Rb7 Bf2 Rb8 Ba6 Rg8 Bh4 c8R+ Kb7 Rce8 Rgc7 Ree1 Nd7+ Kg7 Kc6 Rge8 Bc8 R8e4 Kb7 Rg4 R7c5 f6 Re5 g3 Re7+ Kg8 Rh7 Ba2 Rf7 Nh7 Rg7+ Kh8 Rc5 Bg8 Rc4 Rbb1 Bb2 f7 Bc3 Nh3 Ba1 Re2 Bc3 Rhe1 h1N Nhg1 Nf2 Red2 Ne4 Rf2 Na1 Rfb2 Nc2 Rf1 Nd2 Rfe1 Qf5 Nhg5 Qe5 Bh7 Qd5 Qf2 Bf6 Qd4 Qe5 Re2 Qf5 Rh2 Qd5 Rh1 Qe5 Ne4 Qh5 Neg5 Qxh7+
1n6/RN2b1rN/5n1k/1bKN2r1/1RP2PQ1/1R4n1/Np3N1P/1N1q1bBb w - - 0 1 legal: proof: e4 h5 d4 a5 g4 f5 exf5 c5 gxh5 e6 dxc5 a4 Bc4 a3 Bd5 exd5 bxa3 Qb6 a4 Qc7 a5 Qd8 Ke2 Kf7 Ke3 b5 Kd4 g5 a4 Kg7 f4 g4 c4 g3 c6 d6 f6+ Kh6 f7 b4 a6 g2 c7 b3 a7 Qe7 a5 Qg5 a6 Rh7 Nh3 g1N Qg4 Qd8 Nf2 Be7 f8N Rg7 Be3 Nf6 Nh7 Bd7 c8N Bb5 Ra4 b2 Rb4 Rg5 Nb6 Qd7 Na4 Bd8 Nac3 Rg7 Na2 Ne2+ Kd3 d4 Rc1 d5 Rc3 Ng3 Ra3 Nc6 Rab3 Rc8 a8R Nb8 a7 Rc5 Nh1 Qd6 Bg1 Qd7 Nf2 Qd6 Kd2 d3 Kc3 d2 Kd3 d1B Kd4 Rc6 Qe6 Qd7 Qg4 Re6 Kc5 Be2 Rc3 Rg5 Ra3 Bf1 Rab3 Kg7 h6+ Kg6 Qh3 Re7 Qe6 Rg7 Qg4 Nc6 Rc8 Nb8 a8N Ba5 Re8 Bd8 Nb6 d4+ Nd5 d3 Re7 d2 Rf7 d1B Re7 Qe6 Ra7 Qd7 Nf8+ Kf7 h7 R5g6 Nc7 Bf3 h8N+ Kg8 Nf7 Qd1 Nd5 Rg5 Nd6 Bh1 Nb7 Kh8 Nd7 Kh7 Nf8+ Kh6 Nh7 Be7+
1b1b2q1/rn1R2KB/N1B3p1/k4PP1/8/B1Rb1BPb/1q1R1N1b/1N3q1B w - - 0 1 legal: proof: e4 c5 d4 d5 dxc5 f5 b4 b5 Qd3 a5 bxa5 d4 Qe2 Nc6 h3 Ne5 g3 Ng4 hxg4 Ra6 Qf3 Rd6 Qf4 Rd5 exd5 Bb7 Qf3 Bc8 Qe4 fxe4 Kd2 Kd7 f4 Kc7 c4 e5 a4 h5 c6 h4 a6 Kb6 c5+ Ka5 c7 e3+ Kd3 b4 Ke4 e2 c6 e1B a7 b3 a8B h3 d6 d3 g5 d2 d7 d1B Kf5 e4 Kg6 b2 Ra2 e3 Bb5 h2 Nh3 e2 Nf2 Ba6 c8B Bd6 c7 Nh6 Bcb7 Nf7 c8B Bb8 Bf3 Qg8 d8R Rh7 Rd7 Nd6 Bbc6 Nb7 Ra3 Bd2 Rc3 e1B Rg1 h1Q Rg2 Qf1 f5 Kb4 a5 Bd3 a6 Ka5 a7 Be3 Rh2 B1d2 Bh1 Bg4 Bcf3 Nd8 Bac6 Bh3 a8N Nb7 Nc7 Bb6 Na6 Bde3 Rd6 Bed4 Be6 Bd8 Rd7 B4b6 Ng4 Bg1 Rd2 Bh2 Nf2 Rh4 Ba2 Ra4 Bc4 Qf7+ Kh7 g6+ Kh8 Qf8+ Bg8 Qf7 Bh7 Ra1 Na3 b1Q Bb2 Qe6 Kg7 Qe8 Bc1 Qb2 Nb1 Qg8+ Kh6 Qb4 Nc5 Kb6 Bb2 Ra6 Ba3 Ra7 Na6 Qb2 Bf8 Qe6 Kg7 Ka5 Ba3 Qg8+
4qn2/1N1bPQRb/2N1rR2/pPr4r/1q1P2NN/kp1R3N/4B1N1/1n5K w - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 e5 fxe5 b5 b4 Bd6 bxc5 b4 a3 b3 c4 Qb6 c6 Bc7 c5 Bd6 c7 Qc6 Bb2 Qd5 c6 Bb4 Bd4 d6 Bc5 dxc5 axb4 Qd8 Kf2 Ke7 Kg2 g5 h4 a5 e4 f5 d4 g4 e6 Kd6 h6 f4 e7 g3 e8N+ Ke7 h7 c4 h5 c3 h6 c2 e5 c1R b5 Ke6 Rh3 Kd5 e6 f3+ Kh1 f2 e7 Rc5 Qh5+ Bf5 c8N Rc1 c7 Re1 Nc3+ Ke6 Na7 Nd7 c8N Ngf6 Nd1 Kd5 Be2 f1B Nc6 Ne4 Ncd6 Nc3 Nb7 Rc8 Qf7+ Be6 Ra2 Nb1 Rd2 Nf8 Rd3 Kc4 Nf6 Qd7 Ng4 Qe8 Rh2 Rc7 Nh3 Rc8 Rf2 g2+ Kg1 Rc7 Rf6 Rc8 Na7 Kb4 Nc6+ Ka4 Nde3 Bd7 Kh2 Ka3 Kg1 Rg8 h8N Rg5 h7 Rh5 Ng6 Rc7 h8R Rc8 Kf2 g1Q+ Kf3 Qh2 Rh7 Qd6 Rg7 Qb4 Nh4 Bg2+ Kg3 Be4 Kh2 Bh7 Neg2 Rc7 Bf3 Re3 Be2 Re6 Kh1 Rc8 Ncd8 Rc3 Nc6 Rcc5
2Rn4/3r3B/2PQ2R1/b2PrNb1/1Rp2r1R/pRR1nqBB/5rP1/4K2k w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 exf5 Nh6 b4 Ng8 bxc5 Ba6 Qf3 Bb7 Qd1 Bc8 c4 d5 c6 b4 c5 Bb7 Na3 Ba6 Nc4 Bb5 axb5 dxc4 d4 Kf7 f4 a5 g6+ Kf6 g7 e5 d5 h5 b6 e4 c7 h4 c8R a4 b7 h3 Kf2 a3 Ke1 h2 Nf3 e3 Qc2 b3 Bd3 e2 Rb1 b2 Nd4 Ne7 g8B Rh4 Be6 Nbc6 b8R Bh6 Rb3 Qf8 Bd2 Nd8 c6 Bg5 Ba5 Rh8 Bc7 Ra7 Qc3 Rb7 Qb4 Rh5 Qd6 Ra7 Rc1 b1R Rb4 Rb2 Rc3 Ra2 Bb8 Rd7 Bc2 Kg7 f6+ Kh6 Bh7 Nf5 f7 Ne3 f5 Rh4 f6 Kh5 Rcb3 Rf4 Bh3 Kh4 Bc7 Kg3 Bb8 Qe8 f8R Qe4 f7 Qf3 Rg8 Rd2 f8R Rb2 Rf1 h1R Rg6 Kh2 Nf5 Rg1 Rh8 Kh1 Rhg8 Re4 Rh6 Re5 Rh4 Rd2 Rg7 Rd4 Rg6 Rde4 Kd2 Rf4 Rc1 Rf1 Rcc3 e1B+ Kc1 Bg3+ Kd2 Rf2+ Ke1 Bh6 Rh5 Bh4 Bc7 B4g5 Rh4 Bf8 Qf6 Bc5 Qd6 Bb6 Rc1 Rd4 Qf8 Re8 Bg3 Re5 Qd6 Rf4 Rcc3 Ba5
1b1b3N/B1R1b1n1/N5rp/B2N1bP1/q1P1N3/np1b3K/B2QP3/3N2Nk w - - 0 1 illegal: No possible last move, all moves rejected
1N2qrr1/N1b3Pn/1K4k1/4R3/1prrP3/Nn1p1N2/rB1P3Q/1RNN1R2 w - - 0 1 legal: proof: f4 b5 h4 e5 fxe5 g5 hxg5 a6 a4 Bg7 axb5 Bf6 b6 Be7 b7 Bf8 c4 d6 b4 Qe7 b5 Bd7 e3 Qd8 b6 Bc6 Bd3 Bb5 Bc2 Bd7 Ba4 Bc6 Bb5 axb5 Qf3 b4 Qd1 Bb5 cxb5 Ra7 Qc2 Ra3 Qd1 Ra8 Ke2 h5 Kd3 c5 Kc4 f5 g4 Kf7 g6+ Kg7 g5 h4 e6 h3 e7 h2 e8R f4 e4 f3 Qe2 f2 Re5 f1R Na3 Re1 Rb1 Ra7 Nf3 Rh7 Rf1 h1R Qh2 Rg1 Bb2 Na6 b8N Qe8 b7 Nf6 b6 Rg2 Nd7 d5+ Kb5 c4 b8N c3 b7 c2 Ka5 c1R Kb6 d4 Nc6 d3 b8N Rc4 Nc5 Bd6 Nb3 Nc5 Nc1 Rf7 Na7 Rf8 Qh5 Nb3 Qh2 Kg8 g7 Kf7 g8N Kg6 Nh6 Rd7 Ng4 Nh7 Nf2 Rg4 Ne2 Rec1 Nd1 R1c2 Ba1 Ra2 Nc1 Rg8 Bc3 Rf4 Bb2 Rff8 Nc3 Kf7 g6+ Kf6 g7 Kg6 N7b5 Rd4 Na7 Rc7 Nd1 Rc2 Nc8 Rcc4 Na7 Bc7+
k2b3K/2pqR3/6N1/2b3R1/P1B1Rb1P/Bb1B1nr1/1PNp1Nb1/3n2RR w - - 0 1 illegal: No proof kernel
Bn1K3Q/nP1bPRbN/r3q2p/5qNR/2P2R2/R5pp/bR1R4/1Nk5 w - - 0 1 illegal: Other
2R2B2/R1N1n3/2Bp1nN1/RK5k/pN1PN3/1bBnPp2/1bnP2b1/2N2q2 w - - 0 1 legal: proof: g4 b5 f4 g5 a4 h5 axb5 a5 h4 f6 c3 Ra6 Qb3 Rd6 Qa2 Rd4 cxd4 Nc6 Qe6 Nb8 hxg5 f5 g6 Rh7 Qf6 exf6 g5 Re7 Bh3 Re4 Bf1 Re5 fxe5 f4 b4 c5 b6 f3 b5 c4 e6 c3 g7 c2 b7 f5 b6 h4 e3 f2+ Ke2 h3 Kd3 f4 Kc4 h2 g6 f3 e7 Nc6 b8N Na7 b7 Nc6 Na6 Ne5+ Kb5 Nd3 b8B Ne1 Bd6 Qc7 Nb4 Nf6 Bb2 c1N g8N Nc2 g7 Kf7 e8N Kg6 Bc3 Kh5 Ne7 Nd3 g8R Bb7 Ne2 Bd5 Rhg1 h1B Nc1 Bb3 R1g7 Bg2 Ng6 Be7 Be2 f1N Ra3 Qa7 Nc7 Ng3 Rc8 Nf5 Bf1 Bf8 Rf7 Ne7 Ra2 Nf4 Bd3 Qa8 Be4 Nd3 Bc6 Qa7 Bb2 Qa8 Nc3 Qa7 Ne4 a4 Bc3 Nf2 Rb2 Qa6+ Kc5 Qf1 Rb1 Nd3+ Kb5 Ned5 Rb2 Bh6 Bf8 Ne7 Ra8 Bf4 Ra5 Bd6 Ra2 Na1 Rc2 Bc5 Nbd5 Ba3 Nb4 d6 Ne6 Ned5 Rfa7 Ne7 Nc7 Bb2 Na8 Qe1 Bb7 Ba3 Bb2 Nf2 Rc8 Nc2 Bc6 Nd3 Bc3 Qf1 Nc7 Bb2
3B1nnr/P5PB/2bqkb1q/pr1b1R2/2B3n1/1B2r3/PN2BK1N/BN4Q1 w - - 0 1 illegal: No proof kernel
R3BB2/2pq4/BnB2q2/b3n3/3Q2r1/r1N2q1R/2PPPB1n/B1KbR1rk w - - 0 1 illegal: Other
1N1nbn2/BpBr3n/pP1R1P2/n5qk/5B2/Q1rNr1b1/K1P3N1/2B3BB w - - 0 1 illegal: No proof kernel
rQRKn2N/5ppN/n5q1/3nP1P1/1rRR1PbR/N1r2BR1/8/k2nR2b w - - 1 2 legal: proof: b4 e5 d4 b5 dxe5 h6 a4 Ba6 axb5 Ne7 c4 Ng8 Bg5 Bc5 g3 Bb6 c5 Bc8 cxb6 h5 g4 h4 Bf4 Nf6 Bg3 hxg3 Ra6 Ng8 Ra4 Ke7 Ra1 Ke8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 c5 f4 a4 b7 g2 b6 a3 b5 c4 h5 c3 h6 d6 h7 c2 Rh4 c1R Nh3 g1N Ng5+ Ke7 Kd5 a2 e4 Bf5 e6 Nh3 e5 Nf2 Na3 Rc3 Be2 Na6 Qb3 Nd1 b8R Bd3 b7 Qb6 Rc1 a1N Rc8 Nc2 b8R Qg1 Rc4 Nf6+ Kc6 d5 b6 d4 b7 Ne8 Qb2 Nce3 Rd8 Nd5 b8R Be4 Rb3 d3 Bf3 d2 Ra1 Rf8 h8N Rb8 Nh7 Rb4 Be2 Bh1 g5 Qf1 Bf3 Qd3 Rd6 Qg6 Rc1 N1e3 Rg1 d1B Re1 Be2 Qb1 Nd1 Qb2 Nb6 Rd4 Nd5 Bg2 Bg4 Bf3 Nd6 Qb1 Ra8 Qb2 Ne8 Qb1 Kd8 Qb2 Kc8 Qb1 Kb8 Kd7 Ka7 Qb2 Kb6 Qb1 Ra7+ Kd8 Ka5 e7 Ka4 Qb2 Nd6 e8R Ra8+ Rc8 Nac7 Re6 Nde8 Rc6 Na6 Rcc4 Rc1 Rbd3 Rc3 Qe2 Kb3 Qe4 Ndf6 Qb7 Kb2 Qb8 Ka1 Bc6 Rb6 Rg3 Rb4 Bf3 Nd5
1rb2B2/3PQnqr/2PRN1Np/N1Np1Kbk/1rrB1b2/8/2BP2n1/2NN4 w - - 0 1 illegal: No proof kernel
Rbqrk3/N4RK1/1P6/bNpRPQrR/2PRp3/NbR1nb2/4B3/1q3n2 w - - 0 1 illegal: No possible last move, all moves rejected
N7/Bqnrn2b/3bPR1B/1p1N1N1K/kP3R1p/1rb1N2P/2qNBb2/1R6 w - - 1 2 legal: proof: d4 b5 a4 f5 g4 e5 dxe5 c6 gxf5 Kf7 Qd5+ Ke7 axb5 Ke8 b6 Qf6 Qb3 Qd8 Qb5 cxb5 c4 g5 e4 a5 Ke2 h5 Kf3 d5 b4 Kd7 h3 Kc6 e6 a4 c5 d4 e7 a3 e8N h4 Kg4 d3 f4 d2 e5 d1Q+ Nf3 a2 b7 Ra3 e6 Ra7 f6 Rh6 f7 Qb3 f5 Qc4+ Nd4+ Kd5 c6 Ne7 f6 Qb6 c7 Qbc5 Nd6 Qc6 Nd2 Rg6 Be2 Na6 b8B Qc2 N4f5 Qb7 Rb1 a1B Rf1 Bc3 Kh5 g4 N6c4 g3 Rf4 Bd7 c8N g2 Rg4 g1B Rf4 Bf2 N8b6+ Kc6 Na8 Nc7 Nce3 Be8 Bd3 Ra3 Be2 Rg7 Ba7 Rb3 Bd3 Ng6 Be2 Bd6 f8N Rd7 f7 Ne7 Ng6 Qd1 f8R Qc2 Ng2 Kd5 Rf6 Bf7 Rf3 Bg8 N6f4+ Ke5 Nd5 Bh7 Nf1 Ke4 Bh6 Ke5 Nge3 Ke4 Bd1 Kd3 Nd2 Bce5 Ndb6 Kc3 Rf4 Bd4 Be2 B4e5 Rg1 Kb2 Re1 Ka3 Nbd5 Ka4 Rb1 Bc3
1n3q2/KR5n/2qb2p1/kN3p1N/1R6/PQrnNPn1/bPr4R/B1N1NN2 w - - 0 1 illegal: Other
4RN2/r1RNppb1/2q5/B2bqr2/1P1R1q2/2n2P1B/1kB1P1Kn/1qR2NR1 w - - 0 2 legal: proof: c4 a5 b4 g5 h4 b5 hxg5 d5 cxd5 a4 Qb3 axb3 a4 Qd6 axb5 Qd8 d4 Kd7 g4 Kd6 g6 c5 g7 h5 g5 b2 g6 c4 b6 c3 f3 h4 Kf2 c2 b7 h3 Bf4+ Kd7 d6 Ke6 d7 Kd5 Bc7 Kc4 d5 Kb3 d6 c1Q Ba5 h2 Nh3 Qh6 Ng5 Ra6 Ne6 Ra8 Rg1 Qe8 d8R Nc6 b8N Nd4 d7 Nb5 Bh3 Ra7 Kg2 Bb7 Rc8 Nf6 d8R Ng4 g8B Nc3 Rd4 Bd5 g7 Qc6 Bh7 Qh4 g8R Bg7 Bf5 Rh5 Nd7 Qg5 Be4 Qe5 Rge8 Rg5 Nef8 Rf5 Rd3 Kc2 Rc7 Kb3 Nd2+ Kc2 Rad1 b1Q Rd4+ Kb2 Rc1 h1Q+ Kf1 Qhh2 Bc2 Qhf4 Kg2 Nh2 Nf1 Qc5 Rcc8 Qc4 Rc7 Qc6
4N1K1/qNQ2nbN/2NB4/1pb1pp1r/1r5r/1PP3R1/B3n1PN/NB1bk3 w - - 0 1 illegal: No proof kernel
4B3/Pk1bp3/2nB1NpN/4N2B/1n3bq1/1P2bN1p/KNr1NQPr/5rR1 w - - 0 1 illegal: No proof kernel
N1N3Nb/Kpqn2rN/2Q1BR1q/2N5/n3R3/PPr1R2b/Pp1p1bk1/2N5 w - - 0 1 illegal: No proof kernel
n1q1n2K/1N1pN3/pNBN4/BbRqB2P/2p1r3/n1b4N/P1kP2Q1/2Nr4 w - - 0 2 legal: proof: e4 b5 c4 g5 cxb5 f5 exf5 h5 f4 Bh6 fxg5 Bf8 g4 Nh6 b4 Kf7 g6+ Ke8 g5 Ng8 Na3 Bb7 Rb1 Ba6 Rb3 Bb7 Rg3 Bc8 Rg4 hxg4 Ke2 c5 Ke3 e5 Ke4 Ke7 h4 Kd6 b6 a6 g7 g3 h5 g2 b7 Qe7 f6 Kc6 Kf5 Kd5 Kg6 Kd4 f7 e4 b5 e3 b6 e2 Nb5+ Kd3 Nd6 Ra7 Ba3 Qe3 Nh3 g1N Bg2 e1Q Bc6 Nf3 Qe2+ Kc2 Qg2 Nh6 g8N Qc1 Nf6 Qb3 Bb4 Ne1 Ba5 Nf5 Nd5 Bg7 f8N Bc3 Ne6 Re8 Kh7 Ng7 Nef4 Re4 g6 Ne8 g7 Qc4 g8N Qd3 Nc7 Qd5 Nd3 Ra8 Ne7 Ra7 Bb5 Nc6 b8B Ne5 b7 Nc4 Bc6 Nb6 Rf1 Na8 Rf5 c4 Re5 Qa3 Nc1 Qac5 Rf5 Nf3 Rg5 Nd4 Kh8 Nb5+ Re5 Nb6 Na8 Na3 Bb5 Qcc6 Bc7 Qcc5 b8N Rb7 Nbc6 Rb8 Nd8 Bb7 Bb4 Bc6 Ba5 Na4 Nb6 Rb7 Nbc8 Nb6 Bb8 Na8 Ba4+ Rb3 Nb6 Bb5 N8b7 Qc8 Bc7 Bb4 Rf5 Qe6 Rc5 Qd5 Ndf5 Bc3+ Be5 Kb1 Nfd6 Rb4 Bd1 Rb3 Bg4 Kc2 Be6 Rb1 Bf7 Qd3 Bd5 Qd4 Bc6 Qd5 Ne2 Re1 Nc1 Rd1
1RN2bN1/2Rq2n1/pp3Q1R/1k1n3b/2b1pP2/PN1qP1N1/N5N1/r1B3Kb w - - 0 1 legal: proof: b4 f5 Nh3 c5 Rg1 c4 Rh1 a6 Ng1 b6 Ba3 Ra7 Bb2 Rc7 Bc1 Rc5 bxc5 Nc6 Bb2 Nb8 Ba3 Kf7 Bc1 Ke8 h4 g5 hxg5 c3 dxc3 f4 e3 f3 c4 Kf7 Be2 fxe2 Kd2 Ke8 Ke1 e5 g4 d5 f4 Kd7 Kf2 Kc6 a3 h5 g6 d4 g5 h4 g7 e4 g6 h3 Nd2 h2 Nb3 d3 Nf3 d2 Nh4 Qd5 Ng2 Nh6 g8N Qd3 g7 Nf7 Nh6 Qd7 g8N Be7 Nf5 Qc7 Ng3 Kd7 c6+ Kd6 c5+ Ke6 c4 Qd7 c7 Ng5 c6 Bf8 c5 Kd5 Qe1 d1B Qc3 Rh5 Qf6 Kc4 Ra2 Rh8 Rc2+ Kb5 Rc4 Bb7 c8R Ne6 c7 Nc6 Rb8 Ne7 c8N Bd5 c6 Ng7 c7 Rh4 Rc2 Bc4 Rc3 Nd5 Nce7 Rh7 c8N Rh6 Nc6 Rg6 Rg1 h1B Nb4 Rg4 Rf1 e1Q+ Kg1 Qd2 Na2 Rh4 Re1 Bh5 Rd1 Bce2 Rc7 Qd3 Rd2 Rh3 Rdc2 Rh2 R2c6 Bf1 Ne1 Rb2 Ng2 Rb1 Qf5 Ra1 Rh6 Qd1 Qf6 Bc4+ Kf2 Qd4 Kg1 Qd3
n2N2Rn/p1R3b1/2qP4/B4qNp/N2b2bp/2b2R1P/PNk1NBr1/6KB w - - 0 1 legal: proof: e4 b5 c4 d5 cxb5 e5 Qh5 Na6 Qh4 g5 exd5 gxh4 f4 e4 Nf3 Rb8 Ng1 Rb6 Bc4 Re6 Bf1 Re5 fxe5 Bb4 Ne2 Be7 Ng1 Bf8 Kf2 Ke7 d4 f5 g4 c5 b4 h5 e6 Kd6 e7 c4 e8N+ Ke7 d6+ Ke6 d7 Kd5 h3 c3 b6 f4 g5 f3 g6 c2 b5 Nc5 b7 Ne6 b8B Qf6 d8N Ng7 b6 Ba3 b7 Nh6 Be3 c1B Bg2 Kc4 d5 Kd3 Nc3 Ne6 g7 Bcb2 g8N Bc5 Na4 Nc7 Rf1 Bcd4 Ne2 Qc6 Nd6 Na8 Kg1 Bg4 Bf2 e3 Nc4 Nf7 d6 Kc2 Nf6 Re8 Ne4 Nh8 Bc7 Bg7 b8R Bbd4 Ncb2 Rf8 Nf4 e2 Ba5 e1B Ng5 Bec3 Rc8 Re8 Rc7 Re2 Rh2 Rd2 Bh1 Re2 Be3 Rf2 Rg2 Rd2 Ne2 f2+ Kh2 Qb7 Rg3 Qc6 Rfg1 f1Q Rf3 Qb1 Bf2 Qf1 Rf8 Qb1 Rg8 Qf1 Rg3 Qb1 Rf3 Qf1 Ng3 Qd3 Kg1 Qf5 Be3 Rf2 Ne2 Rh2 Bf2 Rg2+
1B4N1/Q3BqN1/pnBrb2B/b1kp2p1/4B1p1/3PP3/Pr2nKb1/1N2BR2 w - - 1 2 legal: proof: g4 h5 b4 f5 gxf5 c5 bxc5 Rh6 Bh3 Rh7 Bf1 Rh8 Na3 Na6 Rb1 Rh7 Rb4 Rh8 Rg4 Nb8 Bb2 hxg4 Bf6 Na6 Bxe7 Nb8 f4 d5 c4 Kd7 h4 Kc6 e3 b5 d3 g5 h5 b4 h6 b3 f6 b2 f7 b1B h7 Bg7 f8B Be5 f5 Bc2 f6 Qe8 f7 Nf6 Ne2 Bd4 Ng3 Rg8 h8B Bb7 Bg2 Nh7 O-O Bb2 Nb1 Ba1 Bc3 Ba4 Be1 Rg6 Nh5 Re6 Kf2 Bh8 Bh6 Nf6 f8B Nbd7 Be4 Nb6 Ng7 Bc8 Qb3 Qh5 Qa3 Rb8 Bd6 Bd7 Bfe7 Qf7 Bh2 Rb7 Bb8 Bd1 Qa5 Rd6 Qa6 Be6 Qa5 Kd7 c6+ Kc8 c7 Kd7 c8N Kc6 c5 Bf3 Qa6 Nh5 Qa3 Kb5 c6 Ng3 Qa4+ Kc5 c7 Nd7 Qa6 Rb3 Qb7 a6 Qa7+ Rb6 Bf6 Ne2 Ne7 Bg2 c8B Qg6 Ng8 Qf7 Ne8 Bg7 Bb7 Bf8 Bc6 Bg7 Qb7 Rb2 Qa8 Nb6 Qa7 Qd7 Be7 Bc3 Ng7 Ba5 Nd2 Qe8 Nb1 Qf7+
1R3B2/3pr1p1/1pB3Rn/nBk1qqP1/2rpB3/K1QPb1NR/3B1P2/1qB5 w - - 0 1 illegal: No proof kernel
1r2B3/Rrp1N3/p2b2p1/RPB1k3/1R1RB3/1p2n3/B2PP2q/qB4KQ w - - 0 1 legal: proof: g4 e5 h4 d5 f4 g5 hxg5 d4 fxe5 d3 g6 Ke7 g7 Na6 g5 Qd4 g6 Qg4 Na3 Nf6 g8B Ke8 g7 Qd4 cxd3 Qd7 d4 Nb8 d5 Qd8 b4 Kd7 b5 Bb4 b6 Nh5 Nc2 Bf8 Nd4 Ke7 Ne6 Ke8 Nf4 Nf6 Ng6 fxg6 a4 a6 Be6 Nc6 Rb1 Na7 bxa7 b5 Ra1 b4 Bg8 Be6 Bg2 Bd7 Bf1 Bb5 axb5 Qd7 Ra2 Qd6 Ra1 Qd8 Kf2 Ke7 e6 Kd6 e7 h5 e8B h4 Ra5 h3 Ba3 h2 Nf3 Nh7 Bg2 Rc8 a8R Be7 Nh4 Bf6 Ra7 Ke5 d6 Ra8 d7 Rc8 Be4 Bg5 Nf5 Bf4 Ba2 Qf6 d8R Rb8 g8B Rb7 Rd4 b3 Ne7 Qd6 Be6 Nf6 Bc5 Nd5 B6f5 Ne3 Beb1 Qf6 Bfe4 Rf8 Rg1 h1Q Rg4 Qh6 Qh1 Qhh8 Bd7 Rfb8 Be8 Qd6 Rb4 Qd4 Kg1 Qa1 Qh2 Ke6 Qh1 Bd6 Bf5+ Kf6 Rgd4 Ke5 Be4 Qh2+
K2qk3/2B5/nb6/P1p2q2/1BP2P1B/R2R1pp1/3nNRpB/1BQ1q1R1 w - - 0 1 legal: proof: e4 b5 b4 h5 a4 d5 exd5 a5 bxa5 h4 Nc3 Be6 Nce2 Bc8 g3 h3 Nf4 Rh4 Ng2 hxg2 Ne2 Rh3 Ng1 Rh8 f3 f5 Ne2 e5 Ng1 g5 Ra2 e4 Ke2 f4 Rb2 b4 Rb3 e3 Ke1 Rh4 Rc3 Bd7 Ra3 Bb5 axb5 Ra6 Ra2 Re6 Ra1 Re4 fxe4 f3 Be2 Qf6 Bf1 Rf4 gxf4 Qd8 c4 c5 d4 e2 Kf2 g4 Ke3 e1Q+ Ne2 g3 h4 b3 b6 b2 h5 b1Q e5 Qd6 e6 Ne7 h6 Qc6 h7 Qb7 h8B Qb5 Ke4 Qa4 Ra3 Ng6 e7 Qc7 d6 Nh4 Kd5 Qd2 b7 Kf7 e8R Qc3 d7 Bh6 d8B Qc8 Rg1 Nf5 Bh4 Qab4 Be3 Qd3 Qc1 Nd7 b8B Qa4 Bc7 Qad1 Kc6 Bg5 d5 Q1b3 d6 Qbc2 Bc3 Be7 Bb4 Qd8 Kb7 Nb8 d7 Qcd1 Ka8 Nd6 Bd4 Ne4 Be3 Qc8 d8R Qe1 Bf2 Qdd2 Rdd3 Qf5 Red8 Qdd1 Rd2 Bf6 R8d3 Bd8 Nc3 Qe3 Rd6 Ke8 Rh1 Qh3 Bd3 Qc2 Bg1 Qe6 Bb6 Qh3 Bh2 Qd7 Rf2 Nd2 Rg1 Qe1 Ne2 Na6 Bh7 Qg6 Rd4 Qge6 Bb1 Qf5 Rdd3 Bc7 Ba7 Bd8 Bb8 Bb6 Bc7 Qd8+
1kbRb3/2R1br1R/2BN1PQ1/N2PNr1K/2n1r3/2N5/r2q1RP1/1nr3R1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Qd7 cxd5 Qd8 Ba3 Rb7 axb5 Ra7 b6 Ra6 b5 Ra8 Bb4 axb4 Ke2 Kd7 Kf3 e5 Kg4 c5 d4 e4 f4 e3 b7 Kc7 b6+ Kd7 f6 e2 f7 e1R g6 b3 f5 b2 g7 c4 d6 c3 Qd3 c2 Kh5 c1R Nf3 Ne7 g8R Nbc6 b8R Ne5 b7 Nc4 Nc3 b1B Rg7 Re4 f6 Kc6 d7 Kc7 Ne5 Ra2 Rg1 h6 Rh7 Nd5 Qg3 Rg8 Qg6 Be7 f8R Rg7 Rf7 Bc2 Ra8 Ba4 b8N Kb7 Bd3 Rf1 Nbc6 Rf5+ Qg5 Qa5 d8N+ Kc7 Rgf1 Qb4 Na5 Be8 Rad1 Qb2 Ndb7 Qd2 Rh8 Rh7 Rf2 Rg7 Ra7 Kb8 Nd6 Rh7 Rg1 Rg7 Nb1 Nc3 d5 Rh7 Rc7 Rg7 Na3 Nb1 Nab5 Rh7 Bc2 Rg7 Nc3 Rh7 Kg6 h5 Ba4 h4 Bc6 h3 Rf8 Rg7+ Kh5 h2 Rh8 Bed7 Rff8 Rf7 Rd8 Be8 Rh7 h1R+ Kg6 Re1 Qh6 Rh4 Qg5 Rhe4 Kh5 Rff4 Qh6 Rc1 Qg6 Rf5+
2NN1R2/3nqPNn/RrN5/1q2R3/rN1KPn2/n7/3k1PR1/B1r2bQb w - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 f5 axb5 f4 d6 f3 d7+ Kf7 gxf3 e6 f4 Kf6 f5 Ke7 h4 g5 d4 g4 d5 Kf7 d6 Bg7 Bg2 Bf6 Bd5 Bg5 hxg5 exd5 Kd2 a5 Ke3 h5 b4 c5 f6 Ke6 f7 Ke5 g6 d4+ Kd3 g3 e4 a4 b6 c4+ Ke2 d3+ Ke3 a3 g7 g2 b7 d2 b5 c3 b6 h4 Rh2 a2 Ne2 g1N Nf4 h3 Na3 c2 Nh5 Rh6 Rg2 Qe7 d8R h2 d7 h1B Rf8 Ne2 d8N Nf4 Qg1 Nf6 g8N d1Q Ng7 Nbd7 b8N Nh7 b7 Qh5 Re8 Ra4 Bb2+ Rd4 Rf8 c1R Nc2 Rb6 Nb4 Qf5 Rb1 a1N Nb8c6+ Kd6 b8R Kc5 Ra8 Kc4 Ra5 Ba6 Re5 Qfg5 Bc3 Qh5 Rb2 Qf5 Ra2 Nc2+ Kf3 Na3 Ke3 Kb3 Bb2 Bf1 Ba1 Nb1 Ra6 Na3 Nh6 Qh5 Nhf5 Kc4 Nd6+ Kb3 Re6 Qb5 Re5 Rdc4 Nc8 Rd4 Nd5 Kc2 Ndb4+ Kd1 Nd3 Ra4 Ndb4 Ke1 Kd4 Kd2
b2Nkbq1/R3B3/R1q1r2R/1P2n1R1/2NRR1p1/1K1P1Qb1/QP4n1/n6r w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 Bh3 Kf7 fxg5 Be6 g6+ Ke8 g5 Bc8 Bg4 hxg4 h4 e5 d3 a5 Kd2 c5 Kc3 a4 g7 e4 h5 e3 h6 e2 f6 e1B+ Nd2 a3 g6 a2 f7+ Kd7 d6 c4 h7 Nc6 Ne2 Qb6 Nd4 Nge7 g8Q Ne5 g7 Ba6 Ne6 Bg3 Re1 Nf5 Re4 Re8 Qf3 Be7 f8R Qb8 Rf6 Bb7 Qf7 Nh4 g8R Ng2 Rgg6 Rhg8 h8R Ba8 Rf5 Qd8 Rgf6 Rg5 Rhh6 Rh5 Kb4 c3 Qg8 c2 Kc3 Kc8 d7+ Kb7 Rf7 Rh1 Rfh7 Qb8 d8R Kb6 Rdd4 Ba3 Rb1 a1N Ra7 Re7 Qf7 Qg8 Nd8+ Bd6 Qc4 Re6 Qb3 Bf8 Qa4 Nb3 Ra1 Kc5 Ra3 Na1 Qb3 Kb6 Qa2 Kc5 Nf1 Kb6 Bg5 Kc5 Ne3 c1Q+ Nc2 Kb6 Bf6 Kc5 Rg5 Kb6 R3a5 Kc5 Be7+ Kb6 Nb7 Kc7 R5a6 Kc8 Kb4 Kc7 Ne3 Qc6 Nc4 Nc2+ Kb3 Kc8 Bd6 Kd7 Be7+ Ke8 Nd8 Na1+
krN5/2RPR2K/5Pp1/3N3q/r2b1BN1/PRNr3Q/2R1rb1n/nN5n w - - 0 1 legal: proof: e4 d5 g4 a5 b4 f5 bxa5 d4 exf5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 h5 g5 Qd6 f6 Rh6 f5 Kd8 Be2 Rh8 Bf3 Be6 Bg4 hxg4 g6 Bf7 gxf7 Kc8 Ke2 Qd8 Ke1 Kd7 Ke2 e5 Kd3 Kc8 Ke4 b5 d4 Kb7 h4 c5 a3 c4 h5 g3 a6+ Ka7 d6 b4 d5 b3 h6 b2 d7 c3 h7 g2 d6 c2 Qf1 Nc6 Ne2 g1B Ra2 Nb4 Nec3 Qa5 d8N Nh6 d7 Qa4 Rh3 Bfc5 f8R Kb8 f7 Ng4 f6 Bce3 Kf5 e4 Kg6 Bef2 Re8 e3 f8N e2 Re7 e1R Nf7 Qa5 Ne5 Re2 Bf4 c1N Ne6 Nh2 Nc7 Nb3 N7d5 Na1 a7+ Kb7 Rf3 Rhb8 h8R Nd3 Kh7 g6 Ng4 Bd4 Rc8 Nf2 Rg3 Nh1 Qh3 Bgf2 Rc4 Re3 Rc8 Rd3 Rc5 Re8 Rge3 Rab8 a8N Ka7 Nab6 Ra8 Nd2 b1R Rc2 Rab8 Rc6 Rb4 Nc8+ Ka8 Ndb1 Ra4 Rc7 Qb5 R3e6 Qa5 Rb6 Qc5 Rb3 Qa5 Rg7 Re2 Re7 Qc5 Nb4 Qf5 Nbd5 Qh5+
N2Q1q2/nPR1R2b/bP1N2n1/NRnr4/RN3r2/K1NpP2k/1B4r1/1r6 w - - 0 1 legal: proof: f4 b5 d4 h5 a4 f5 axb5 e5 g3 c5 dxc5 Ke7 Bh3 Ke8 Bg4 hxg4 Nc3 Be7 Nb1 Bg5 fxe5 f4 Nc3 f3 Nb1 Bf4 gxf4 Qf6 Nd2 Qb6 Nb1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 h4 d5 c4 a5+ Ka3 g5 b4 d4 b6 a4 e3 g3 h5 Kg4 e6 g2 f5 Bb7 b5 Rh6 e7 Qc7 e8N Kg3 c6 g4 c5 f2 f6 f1B f7 Rh8 f8N Qd6 h6 Ra7 c7 Ra6 c8R Qe5 h7 Qf4 c6 Ba8 c7 Nc6 Bb2 Ra5 Nd2 Nge7 Nd7 Ng6 Rh5 Rf8 h8R Na7 R8h7 Be4 b7 Qh6 b6 Rf4 Re5 Qf8+ Rhe7 Ba6 Nb8 Rd5 Ne2+ Kh3 Nc4 g1R Na5 g3 Nbc6 g2 Nb4 Bc2 Qd2 Rb1 Nc3 g1R Qd3 Rg2 Qd1 Rd7 Rb5 Bd3 Ra8 Be4 c8N Rd5 Ncd6 Bf5 Nc7 d3 Qc1 Be4 Rc8 Bf5 Na8 Be4 Ka2 a3 Rcc7 Bf5 Kb3 a2 Qg1 Ne5 Ka3 Bh7 Qc1 Ng6 Qg1 Rh2 Qg5 Rg2 Rc4 Rbf1 Rc1 a1N Rcc7 Nb3 Ra1 Nc5 Qf6 Qg7 Qf8 Qf6 Qd8 Rb1 Ka2 Ne4 Kb3 Qf7 Ra4 Qf8 Ka3 Nc5
rbnQbB2/5r1p/B6b/q1R1PBP1/B3RN2/1PRb1q2/RnR5/K4k2 w - - 0 1 legal: proof: c4 a5 h4 g5 hxg5 e5 f4 d5 cxd5 b5 fxe5 a4 b3 a3 Nc3 Be7 Na4 Bb4 Nb2 axb2 a4 Bc5 axb5 Bf8 d4 Ke7 Kd2 b1B Kc3 f5 Kb2 c5 g4 f4 e4 f3 b6 f2 e6 Kd6 e5+ Ke7 g6 c4 d6+ Ke8 d5 Bg7 g5 Bf8 g7 Na6 b7 Rb8 d7+ Ke7 Rh2 Nb4 Ra2 c3+ Ka1 c2 Ne2 Nd3 Nf4 Nb2 Ba6 Qa5 d8R Ra8 b8R f1Q Rb5 Qf3 Rc5 Bd7 Rdc8 Be8 Re2 Ra7 Re4 Rc7 Bd2 c1B Bb4 Bd3 Ba3 Ra7 R8c6 Be3 d6+ Kd8 d7 Ne7 g8B Bh6 Rc2 Nc8 R6c5 Ke7 d8R Ra8 Bf7 Rf8 Bg6 Rf7 Bf5 Bg1 Rd6 Bd4 R5c3 Ba7 Rc5 Bb8 Rdc6 Kf8 e7+ Kg7 Ne2 Bc4 Qd8 Bd3 Be6 Kg6 Bf5+ Kh5 Nf4+ Kh4 Rc7 Bd7 e8B Kg3 R5c3 Ba4 Bf8 Bd7 R7c5 Ba4 Ne2+ Kf2 Nf4+ Kf1 Bed7 Bc6 Be8 Bb7 Beb5 Bc6 Ba4 Be8
2B1N2n/Nqb2K1k/QP2P3/1B2BnP1/qr2r2n/1Rr4p/N3B1Bn/N7 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 f4 c5 fxe5 Bg7 dxc5 Bf8 b4 Bb7 g4 Ne7 Ra3 Nc8 Rf3 Ne7 Rf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ng8 Kd2 h5 Kc3 d5 Kd4 a5 e4 f5 c4 Kf7 b6 Kg6 c6 f3 c7 h4 c8B f2 c5 a4 b5 h3 b7 a3 b6 f4 c6 a2 c7 a1N e6 f3 Ke5 d4 e7 d3 Ke6 d2 e8N Nc2 e5 Na3 Bg2 f1N Qe2 d1Q Bb2 f2 Bd7 Rh4 c8B Nb5 Nf3 Qa4 Ne1 Nc6 b8N Bd6 Nc3 Nce7 Nc6 Nh2 Nc2 f1R Na1 Rf4 Na7 Rb4 Rb1 Qc7 Na2 Kh7 Kf7 Nd4 Qa6 Ndf3 Bb5 Qb7 e6 Bb8 Be5 Bc7 Rb3 Nf5 Be2 Nge7 g6+ Kh6 g7 Kh7 g5 Rhe4 Kf6 Ng6 g8B+ Kh8 Bb5 N3h4 Bf7 Kh7 Be2 Nh8 Bfh5 N8g6 Bb5 Rb8 Bhe2 Ra8 Bcd7 Rd8 Bc8 Rd3 Kf7 Rde3 Kf6 Rc3 Kf7 Nh8+
N2k1n1R/2qrN1QP/QQ5B/2PP2Qb/1KQ2Q2/b1p1r3/1b2br2/5R1r w - - 0 1 illegal: No possible last move
2b3N1/1n1q3p/BBPp4/1Q1nB1qk/bB2B1N1/rrRn1PP1/K4Q2/B7 w - - 0 1 illegal: No possible last move
4KB1n/1B2n2N/3q1R1Q/1P1RPrpr/B4Pp1/q1B3k1/1Qb5/BBq3n1 w - - 0 1 legal: proof: d4 h5 a4 e5 g3 c5 dxc5 b5 axb5 e4 Nd2 f6 Ndf3 Ne7 Ne5 f5 Ng4 Ng8 f3 Bd6 fxe4 Bf4 e5 hxg4 Nf3 Be3 Ng1 f4 Ra3 f3 Ra1 Bf4 gxf4 Kf8 Ra6 Kf7 Ra1 Ke8 Kd2 Ke7 Ke3 Ke6 Ke4 a5 b4 a4 h4 f2 c4 d6 h5 a3 c6 a2 h6 g6 b6 Qf6 c7 Qf7 c5 Bb7+ c6 Qh7 c8B+ Qd7 h7 Ra5 Nf3 Ra4 Qc2 Ne7 Rh6 Ng8 Bd2 Ne7 Bc3 Ra3 Rd1 a1N Qb2 Ra5 Rd5 Rf8 h8B Nc2 c7 Nbc6 e3 Ba8 b7 Ne1 b8B Rf5 Bd3 f1Q Bb7 Nd8 c8Q Qh3 Bb1 Nf7 Qf8 Qc7 Bg7 Nh8 Kd4 Qc6 e4 Qb6+ Kc4 Qe3 Ba7 Qc1 Bd4 Qg3 Qc8+ Kf7 Qc6 Ke6 Bf8 Rb5 Ng1 Nf3 Nh3 Ng1 Qa6 Qh2 Qb6 Qhc2 Qc6 Qa4 Qa6 Qa3 Ng5+ Kd7 Nh7 Ke6 Bf2 Ra5 Bh4 Rh5 Bf6 g5 Qc6 Ra4 Kb5 Ra5+ Kb6 Rc5 Kc7 Kf7 Rd4 d5 Kd7 Rb5 Rd1 d4 B6g7 d3 e6+ Kg8 Ke8 d2 Rf6 Rf5 Rf1 d1Q Re1 Qd3 Rd1 Qd6 Rd5 Neg6 Bc8 Bb7 e7 Ba6 Bb7 Bd3 Rf7 Bc2 Bgd4 Qc5 e5 Qb6 Rf6 Qba6 Kd8 Qd3 e8B Ne7 Qb6 Qda6 Ba4 Qd3 Re6 Kf7 b5 Qdd2 Nf6 Kg6 Ke8 Qd3 Rc6 Qd6 Nh7 Qf3 Bd2 Qa3 B2c3 Rh6 Qa6 Kh5 Rb6 Kh4 Rc6 Qdb4 Rf6 Rh5 Rh6 Nhg6 Be1+ Kh3 Qb3+ Kh2 Ba1 Nc8 Qb2 Nh8 Bc3 Ne7 Qg6 Qd6 Qg7 Nh3 Rf6 Ng1 Qh6 Kg3
3Kn2k/Q7/1N4qp/qBnQ1Nr1/1p1P3B/1PQ5/P1Qb1Q1r/1QnqR3 w - - 0 1 legal: proof: h4 d5 e4 g5 hxg5 f5 exf5 a5 c3 d4 cxd4 a4 Bc4 a3 Bb5+ Nd7 Bf1 Nb8 d3 c5 b3 c4 Nd2 c3 Rb1 Bd7 Rb2 Be6 Nb1 Bc4 dxc4 axb2 Ke2 Kf7 Ke3 Kg7 Ke4 e5 f4 b5 g4 c2 c5 h6 c6 b4 g6 Qd7 g5 Qc7 Kd5 e4 Ke6 e3 Na3 b1Q Nf3 e2 Nc4 e1N Nh4 Qb7 c7 Be7 c8Q Bd8 f6+ Kf8 f5 Qa6+ Nb6 Qa4 g7+ Ke8 g6 Qb2 Bg5 Qaa3 Qb1 Qa5 Bb5+ Nd7 Qa6 c1Q Qa7 Ng2 Re1 Qd1 Kd6+ Be7+ Ke6 Qbc2 f7+ Kd8 f6 Rc8 Bf4 Bd6 Bg3 Bf4 Bf2 Be3 Kd6 Qe4 f8Q+ Qe8 f7 Rc2 Bg3 Ngf6 g8Q Nf4 g7 Nd3 Qh7 Rh2 g8Q Nc1 Qhc2 Bd2 Qfg7 Rh7 f8Q Nc5 Qd5 Rh8 Qgg6 Rg8 Qgd3 Rg5 Qff7 Qe4 Qdc3 Ne8+ Kc6+ Nd7 Qf2 Ke7 Kb7 Qe6 Nf5+ Kf8 Kc8 Kg8 Kd8 Nc5 Bh4 Kh8 Qce4 Qf7 Qec2 Qg6
3Bq2q/pp1q1nRr/8/1N5N/RRRK4/Pbn1PNPR/1b2Q3/N1k3b1 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 c5 bxc5 f4 d6 f3 gxf3 e6 f4 Qa5 f5 Qd8 d4 g5 d5 g4 Bg2 g3 Bf3 g2 Be4 Kf7 Bf3 Ne7 Be4 Rg8 Bf3 Rg3 hxg3 Ng8 Qd4 Qe7 Qb2 Nc6 Bh6 Bd7 Bc1 Bg7 Qb4 Nh6 Qd2 Rh8 Qd1 Bc8 d7 Qd8 d6 Nb8 Be4 Ng8 Bf3 Bf8 Bd5 exd5 Kd2 Kf6 Kc3 Ke5 f4+ Ke4 c6 h5 f6 h4 c7 h3 f5 h2 f7 Nf6 Nf3 g1B Bg5 Nc6 e3 Ne5 Na3 Bh6 f8N Nc6 Nh7 Nb4 Qe2 Bg7 Nb5 Ng8+ f6 Bh6 f7 Qe8 d8N Bh3 c8R Be6 f8R Bf7 Ne6 Bg7+ Ned4 Nh6 d7 Be6 d8R Nf7 a3 Be5 Rc4 Na2+ Kd2 Bg7 Rd7 Nc3 Nc2+ d4 Rb1 Bf6 Ra4 Bb3 Na1 Bg7 Bd8 Bf6 Ra6 d3 Rg8 Bg7 Rc7 Be5 Rg7 Bf6 Nf8 Rh7 Ne6 Be5 Nf4 Bd4 Kc1 d2+ Kb2 d1Q Nh5 Bf6 Ra4+ Qd4 Qe1 Kd3 Rcc4 Qdd7 Kc1 Bc2 Rbb4 Bb3 Kb2 Bf2 Rg1 h1Q Rg2 Qh4 Rh2 Bg1 Rh3 Qhd4 Qb1+ Ke2 Qa2 Kd1 Rc5 Be6 Rcc4 Bd5 Kb3 Kc1 Qe2 Qde5 Bc7 Qh8 Bd8 Qee8 Bb6 Be4 Rc7 Bc2+ Kc4 Ne4 Rc5 Bb2 Bd8 Nc3 Rc8 Qde6+ Kd4 Bb3 Rcc4 Q6d7+
b1Nr2r1/3b2RN/2B1r2Q/3B4/2Kp1BN1/2B1Pp2/P1nPr3/Nbqk2B1 w - - 0 1 legal: proof: g4 b5 f4 a5 b4 e5 bxa5 h5 gxh5 b4 c3 b3 f5 Bc5 Na3 Bb4 cxb4 Nc6 Rb1 Nd4 Ra1 Ne6 fxe6 Ra7 Bb2 Qf6 Rc1 Qg5 Rc4 Ra8 Rf4 exf4 Bc1 Qd8 h4 Ke7 b5 Kf6 b6 Kf5 e7 Ke4 e8N d5 b7 g5 b8B c5 h6 f5 a6 f3 h7 f4 a7 g4 h5 b2 h6 b1B Nh3 c4 Nd6+ Kd4 Bb2+ c3 Rg1 g3 Ng5 Ne7 Bg2 Bd7 Nc8 Re8 h8N Qc7 h7 Nf5 Nhf7 Ne3 Ne5 Re6 h8B Nc2+ Kf1 f2 Nh7 Qc6 Bd6 Rb8 a8B Qc4 Bc6 Ra8 Ne7 Rd8 Nc8 Qc5 Bh1 Qc4 Rg2 Qc5 e3+ Ke4 Ng4 Kd3 Rg1 d4 Bhe5 Qc4 Bhd5 Qc5 Kg2 f1B+ Kf3 g2 Qe1 Qc4 Qh4 Be2+ Kf2 Bf3 Qh6 Qc5 Nc4 Be4 Na5 Qa3 Ba1 Qc1 Nb3 Bf3 Bb2 Be4 Na1 f3 Kg3 Ke2 Kf4 Ne1 Bb8 c2 Bc3 Kd1 Bec7 Rg6 Ke5 Rf6 Rh1 g1R Rh3 Rg2 Rg3 Re2 Rg2 Rff8 Kd6 Rf6+ Kc5 Re6 Bh2 Rg8 Bbf4 Rd8 Bc4 Rg8 Bg1 Rd8 Ba4 Ba8 Bd5 Rf2 Ne5 Qa3+ Bb4 Rg8 Na7 Re2 Rg7 Qb2 Ng4 Qa3 Bb5 c1R+ Bdc4 Bc2 Bd5 Rb1 Ba4 Qc1 Bc3 Rbb8 Bac6 Bb1 Kc4 Rbd8 Nc8 Nc2
1BQ2KB1/Bpp1PNBp/1q1rP1kN/2b2N1r/1n1b4/7N/R2PrBb1/8 w - - 0 1 illegal: No proof kernel
1N1r3k/PNPNp3/1N2NP2/pNqr1Qbp/R1rn4/3R2B1/8/1Kb3Qb w - - 0 1 illegal: No proof kernel
1R1Q2bb/4BrpN/P3q1p1/1QbK2Rq/1B2B3/1k4P1/pBn1bP2/BB6 w - - 0 1 illegal: Other
r5b1/1QBKR1BN/BR2r1Bn/b1Bq1bp1/R1n1R3/8/Pqrn1PP1/6k1 w - - 0 1 illegal: No proof kernel
b1Qn1RK1/2R2PRr/n2b1R1p/Pbn1NRq1/RB3brP/8/B5Q1/2k1b3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 g5 f4 Qd6 f6 Qd8 f5 Kf7 Nc3 Ke8 Nce2 Nc6 Nf4 gxf4 Qf3 Nb8 Qe2 Bh6 Qd1 Bf8 a6 Kf7 Kf2 e5 Kf3 b5 Ke4 c5 a4 c4 d4 f3 g4 b4 h4 c3 d6 f2 Kd5 c2 a7 e4 a5 e3 g5 b3 d7 e2 Qd2 e1B Ra4 h6 Nf3 b2 Bc4 f1B Ba2 b1N Ba3 c1B Qg2 Be2 Bb4 Bf2 Rf1 Qc7 d8R Qg3 Rd6 Bb7+ Rc6 Rh7 g6+ Ke8 Ke6 Nc3 d5 Ne4 d6 Bb5 g7 Be1 Rc2 Na6 Ne5 Ne7 g8R Nc6 d7+ Kd8 Rcf2 Kc7 d8R Bd6 Rf4 Rc8 a8Q Qg5 Rg6 Be3 Rh8 Rf8 Rg7+ Rf7 Qe8 Ba8 Qd8+ Kb7 Re8 Rc7 Ree7 Bc1 Kf7 Bcd2 Qd7 Nd8+ Kg8 Bc1 Nf3 Be3 Qc8+ Kc6 f7 B3d2 f8R Bc1 Bb1 Kd5 f6 Kc4 f7 Kb3 Ne5 Rc4 Rb7 Nec5 Rf6 Rg4 Rc7 Bcd2 R1f5 Kb2 Ba2 Kc1 Rc6 Be3 Rc7 Bf4
b2b2RB/pK2N3/N1n2N1k/RP1r2nN/1q5P/PrNRn3/1b2Q3/Rn3n2 w - - 0 1 illegal: No possible last move
1b3kr1/r1n1N1R1/5b1n/2P1NpN1/n1qK1PR1/2R1N3/2B1R1bP/2R1Qnr1 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 g4 Rh7 gxh5 Rh6 Be3 Rh8 Bd4 exd4 Kd2 g5 Kd3 d5 b4 a5 f4 f5 e4 g4 c4 a4 h6 g3 h7 g2 b6 a3 b5 a2 b7 Qh4 e5 Qg4 b6 Qg6 e6 Be7 c6 Bh4 e7 Nd7 b8R Qd6 b7 Ndf6 c5 Nh6 c7 Qe6 Nf3 g1R Nbd2 Rhg8 h8R Ra7 Rc1 a1B Qe1 Kf7 Bg2 Ne8 Nf1 Bf6 Rc3 Bd7 c8N Nc7 e8R Bc6 Re7+ Kf8 Rhh7 Be5 Ne3 Qf7 Kd2 d3 Rg7 d4 Ng5 Qc4 Be4 Bd6 Ra8 Bb2 b8N Ba1 Kd1 d2 Bc2 Bg2 Nc6 Bb2 Ne5 Ba1 Nd3 Be5 Ke2 d1N Re6 Nb2 Kf2 Bf6 Ne5 d3 Rb8 d2 Ne7+ Ne8 Rbb3 Na4 Rb1 Nc7 Rc1 Qb3 Ke2 d1N Kd3 Bb2 N3d5 Ne3 Kd4 Nf1 Ne3 Ba1 Nf7 Qb8 Rg4 Qb3 Ng5 Bg7 Rg6 Bf6 Rg7 Ke8 Kd3 Nd2 N5c6 Nd5 Qe2 Rd1 Re1 Kf8 Qf2 Qb4 Ra3 Bae5 Re2 Rg1 Qe1 Nf1 Rc3 Bb8 Ne5 Qb3 Kd4 Nc7 Rd2 Qa2 Re2 Qc4+
2r1b3/B5B1/1Q2B3/4Q2n/B2r1r1B/RK2pNnN/Pb2P1bP/n3qkBn w - - 0 1 legal: proof: c4 a5 b4 f5 bxa5 d5 cxd5 h5 g4 Rh6 gxf5 Nc6 Na3 Nb8 Rb1 Rh7 Rb4 Rh8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 Kc2 g5 f4 e5 f6 c5 f5 b5 f7 b4 a6 e4 a7 b3+ Kb2 g3 f6 g2 Nb1 g4 Ka3 b2 Qd2 c4 Qc2 c3 Qa4 c2 Qb5 g3 Qa6+ Nc6 Kb3 Bg7 f8Q+ Ne7 f7 Bd7 Qe8 Rc8 f8B Qa5 a8B Rh4 Kc4 Qe1 Qa7 Nb4+ Bc6 Rf4 Nf3 g1N Qb6 g2 Nc3 b1B Nd1 Nh3 Nf2 g1R Kb3 Rgg4 Rg1 Bf6 Bg7 Nf5 Bb2 Ng3 Ba4+ Bc6 Bc1 Rh4 Be3 c1N+ Kc4 Ncd3 Kb3 Nc2 Qe5+ Kd7 d6 Rhg4 Qg5 Ke6 d7 Be5 d8B Kd5 Bc7 Be8 Bb8 Rh4 Ba7 Rhg4 Nd1 Nhf2 Bh3 Nfh1 Rg2 Rh4 Bg1 e3 Be6+ Ke4 d5 Bb2 d6 Rhg4 Bc4 Rh4 Qe7+ Kf5 d7 Kg4 d8B Kh3 Qe5 Rd4 Rf2 Nf4 Be6+ Rg4 Bg5 Nfh5 Bh4 Rf4 Rf1 Kg2 Nf2 Rd4 Nh3 Rgf4 Bb5 Nb4 Ba4 Be4 Qed6 Nc2 Qe5 Qd2 Rd1 Qe1 Rd3 Kf1 Rc3 B4c6 Rc5 Ba8 Ra5 Bb7 Bb5 Be4 Ra3 Ba8 Ba4 Be4 Nfg5 Bg2 Nf3 Na1+
Q3bb2/1PR3R1/N2R2pb/Rq4P1/1Q1RqPBk/2nr4/1K1R1b2/2nn1r1N w - - 0 1 legal: proof: g4 f5 a4 h5 c4 d5 cxd5 b5 axb5 f4 b3 f3 Bb2 h4 Be5 Nc6 Bg3 hxg3 exf3 Rh7 f4 Nb8 f5 Rh8 d4 Kf7 Kd2 Kf6 Kc3 Kg5 f4+ Kh4 f6 e5 d6 c5 g5 a5 b6 g6 b4 a4 f7 g2 b5 a3 d5 a2 d7 c4 d6 e4 b7 e3 b6 e2 Qd5 e1B+ Kb2 Ba5 Ne2 g1B Na3 Bh6 f8Q Qe8 d8R Qe7 d7 Qd6 Nc2 Qc5 Bh3 Ra6 Nb4 Ne7 Ng3 Nbc6 b8R Nf5 Rb7 Qb5 Bg4 Bf2 Rc7 Nce7 Qa8 Nd5 b7 Nfe3 Rhd1 Rd6 Nh1 Nc3 Rd2 Rd3 Qe7 Bb6 Rg8 Bc5 d8R Be6 Rg7 Bf7 Rd4 Be8 Qe4 Bf8 Qe7 Qd5 Na6 Qb5+ Qb4 Rh7 Rg8 Rd7 Rg7 Rd6 Rc2 Rd1 Rcd2 Rf1 Rad1 a1N h3 Nb3 Ra1 Rd7 Ra5 Nc1 R2d3 N1e2 Bf5 Ne4 Rd5 Ng4 Rdc5 c3+ Ka3 c2 R5c6 Kh5 Kb2 N4c3 Rd2 Rd4 Rd6 c1Q+ Kb3 Qe1 Kb2 Nc1 Bc8 Rd3 Bd7 Rg3 R2d4 Qe4 h4 Rd3 Bf5 Ne3 Be6 Qef5 Bc8 Kg4 h5 Bg3 Be6 Kh4 Bd7 Qe4 Bg4 Be1 Rg8 Bhg7 h6 Bg3 h7 Be1 Bd1 Kh3 h8R+ Bh4 Rh5 Bh6 Rgg7 Kg2 Be2 Be1 Rh4 Bg3 Rg4 Kh3 Bd1 Be1 Rg2 Kh4 Rd2 Bf2 Bg4 Ned1+
1Br1k1N1/qr1nP3/1pp1B3/2PN1B1n/1nNP1b2/1NKrQ3/2NR1b2/3b3B w - - 0 1 illegal: No possible last move
R1NKR3/P2b3p/1NqR2NN/rb6/2n4P/1n3PBr/pQ1nNbk1/4R1q1 w - - 0 1 illegal: No proof kernel
B3B3/1Pq1NP1r/1n2n1pn/2b5/2R1Q2R/b1r3PK/QBpqbB2/1B1k2B1 w - - 0 1 illegal: No proof kernel
4Nb2/q1nrqB1B/2NBP2b/BQ2pN2/1NR5/2pn1b2/3rPPr1/3kBK2 w - - 0 1 illegal: No proof kernel
1R3nb1/5PNb/3R1N2/4r1K1/k1N2R1n/pR1pq3/P3rBP1/Q2NbRrb w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 h4 Nb8 hxg5 f5 e4 Ke7 e6 Qb6 e5 Ke8 Bd3 Qd8 Be4 fxe4 Kd2 d5 Ke3 h5 Kf4 a5 c4 b5 c6 e3 e7 a4 g6 e2 c7 Kd7 e8R Kc6 e6 e1R c5 b4 g7 Kb5 e7 h4 c6 b3 Rh3 b2 Na3+ Kb4 Rb3+ Ka5 Kg5 b1B f4 d4 f5 h3 f6 h2 Nh3 h1B Be3 Nh6 g8N Rg1 Nf2 Be6 c8R Bh7 c7 Nd7 Rcb8 d3 c8R Nf5 Rc4 Nh4 Rf4 Qb6 Red8 Qd4 e8N Bb4 Ng7 Nf8 Qc1 Be1 Nd1 Bf7 Bf2 Qe3 Rd6 Ra7 Nh6 Re7 Ng4 Bfg8 f7 Re4 Nf6 Re6 Nb1 a3 Nd2 Re8 Nc4+ Ka4 Rab1 Re7 Qc3 Re6 Qa1 Re5+ Kg4 Bf5+ Kg5 Rh6 Ne4 Rhe6 Nf6 Bfh7+ Kg4 Ra5 Rdd8 Bd2 Rd6 Qd4 Nde3 Re4 Rf1 Be1 Nd1 Rae5 Rb1 Re2 R1b3 Nf5 Kh5 Qe3 Kg5 Nh4+
RB5B/2PpQr2/1Kr2NbB/3Pbqr1/1BrNBQ2/5p2/Pb2nk2/3n3B w - - 0 1 illegal: No proof kernel
B4b1B/R1R5/n1Pn1rQN/Bn1pkn2/1bpR2PR/R2Pq3/5Bb1/K3r3 w - - 0 1 illegal: No proof kernel
2B3bR/r1P1n3/3n3N/pNrk1p2/1b5n/RKbbPN2/PRqN4/QNR5 w - - 0 1 illegal: No possible last move, all moves rejected
RNN1R3/1rN4p/1p1qPnnk/1nr1Nb2/Rr6/2n3BP/1PQ1R3/bN3K2 w - - 0 2 illegal: No extended proof kernel
1q1bRn1R/P1p5/4N2B/1R1K2r1/1pN1r1k1/PP5R/1q2b2n/NNn1RQn1 w - - 0 1 illegal: No proof kernel
1Qq5/1N1Rn1pR/1R1b2Pb/1QNp1P1B/RnR3r1/4r1q1/R2Pr2K/1k4r1 w - - 1 2 illegal: No possible last move
R3Q1r1/p7/q1b2r1n/QPB1Q2Q/Q2pnP1q/2bK3r/PrR4Q/4k1NN w - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 f5 cxb5 h5 g4 Nc6 gxf5 Nb8 Bh3 Bb7 Bg4 hxg4 Qa4 Ba6 Qd1 Bc8 Kd2 Kf7 f4 g5 h4 c5 e4 d5 b4 d4 f6 Ke6 h5 c4 f7 c3+ Ke2 c2 b6 g3 b5 g4 b7 g2 h6 g3 h7 Bb4 f8Q Nh6 Kd3 Nd7 b8Q Qh4 Ba3 c1R Qd8 Rc2 Nd2 Bc3 Rc1 Bb7 Qa5 Bc6 Nf1 Rb2 Bc5 Nf6 Qda4 Nh5 Rc2 Rf8 h8Q Rf6 Qbc7 Rg8 Qd6+ Kf7 e6+ Kg6 e5 Kf5 e7 Kg4 Qh7 Rh8 e8Q Rg8 Ne2 Kf3 e6 Kf2 e7 g1Q Qe5 g2 Nfg3 Ke1 Rh2 Rh8 Nh1 Ng3 Q8h5 Rg8 e8Q Qe3+ Kc4 g1R Qh8 Rf1 Ng1 Rf3 Qh7 Ne4 Rhg2 Rh3 Rg7 Qc1 Rb7 Qe3 Rb8 Ng3 Ra8 Qe4 Qd5 Qe5 Kd3 Qe6 Qhe5+ Kd1 Qg2 Qc8 Qh2 Qa6 Ne2 Ke1 Qhf7 Rg7 Qfh5 Rg8 Ng1+ Ne4+
1kNRN2B/nnp1rNBq/7r/B2pKb1r/q3N1B1/3rBP1r/Q1PP4/8 w - - 0 1 legal: proof: e4 b5 b4 h5 a4 f5 exf5 e6 axb5 Ba6 g3 Bd6 Ra3 Bf4 gxf4 Bb7 Rg3 Bc8 Rg4 hxg4 Ke2 d5 Ke3 Kd7 Kd4 a5 h4 g5 f6 g3 f5 g4 b6 a4 h5 a3 f3 a2 b5 a1Q+ Bb2 g2 h6 g3 f7 Ba6 f8B Kc8 f6 Qa2 b7+ Kd7 b6 Bd3 h7 Ne7 f7 Qa4+ Ke5 Bf5 Bd4 Ra6 Be3 Nc8 Bg7 Qe7 f8B Nd6 Nh3 g1R Nc3 g2 Ne4 Kd8 Rh2 Rh1 Nhg5 g1R Qa1 Qed7 Rg2 Rh5 Qa2 Rgh1 Bb5 R1h3 Bc6 Rg8 h8B Qf7 Bd7 Nc6+ Kf4 Qg6 b8N Qh7 b7 Na7 Ke5 Rc6 Rg1 Rc3 Bc8 Rd3 Nd7 Rh6 b8N Nb7 Bb4 R3h5 Bgf8 Rg7 Ndf6 Rd7 Ne8 Rh3 Ba5 R6h5 Kf6 e5 Rh1 Rb3 Bfg7 Rd3 Nc3 e4 Ke5 Rd6 Be6 Rd7 Nc6+ Kc8 Ne7+ Kb8 Nf7 Rh6 Nc8 R3h5 Beb6 e3 Ne4 e2 Be3 e1R Rg1 Re2 Rb1 Reh2 Rb6 Re7 Rd6 R2h3 Rd8 Rd7 Nfg5 Bg6 Bg4 Bf5 Nf7 Re7+
1k2r3/7q/B3qQ1b/Qn3pPR/2N1Rn1R/1n3P1p/2rRK1RP/1q3RBn w - - 0 1 legal: proof: d4 b5 a4 d5 axb5 Kd7 c4 Nc6 cxd5 Nh6 e4 Nb8 d6 Ke6 d7 Ng8 d5+ Kd6 Nd2 Ke5 Ndf3+ Kf6 Ke2 g5 Kd2 Bb7 d6 Bd5 exd5 g4 Ne1 g3 f3 Ke5 Nd3+ Kf6 Nf2 gxf2 b4 Ke5 g4 a5 b6 c5 b7 f5 b5 h5 b6 a4 g5 h4 Ba3 h3 Bc4 f1N+ Ke1 Nc6 b8R Qc7 d8Q Ng3 d7 Kd6 b7 e5 Qd4 e4 Ba6 e3 Ne2 Na7 Nf4 e2 Ng6 Nb5 Rg1 Nh1 Rg2 Bh6 Ne5 Ne7 Kd2 Ng6 Rf1 e1Q+ Kd3 Qa1 Ke2 Re8 Rc8 Qc3 b8R Qb3 Bc1 a3 Be3 a2 Bg1 Qb7 Qa5 a1Q d8R+ Qd7 Rb7 c4 Ra7 c3 Rc4 c2 Rac7 Re7 Rh8 Ree8 Ra7 Qf7 Re7 Rac8 Qdb6+ Rc6 Rh4 Qh7 Qd4 Qab1 Qda1 Rf8 Re8 Rc3 Nc4+ Kd7 Re3 Re8 d6 Kc6 d7 c1N+ Kd2 Nf4 d8R Q3a2+ Qb2 Qb3 Re4 Rc2+ Kd1 Qe3 Rdd2 Qb6 Qd4 Kc7 Qf6 Kb8 Ke1 Nd5 Kd1 Nb3+ Ke2 Qe6 Rg8 Bf8 Rg6 Bg7 Rgh6 Bf8 R6h5 Bh6 Kd3 Nf4+ Ke3 Ng6 Ke2 Nf4+
r7/pB1P2BB/1q1bRnpR/q5qb/P2QK1Pq/1k2N1RB/7b/3R2rB w - - 0 1 legal: proof: f4 c5 g4 h5 b4 d5 bxc5 e5 e4 h4 exd5 e4 Nc3 Nc6 Nce2 Ne5 Ng3 hxg3 fxe5 Bd6 Qf3 Be7 Qd1 Bf8 Ke2 Kd7 Ke3 f5 h4 b5 d4 g2 a4 b4 c4 b3 d6 Kc6 d5+ Kb7 d7 Ka6 e6 Ka5 d6 Kb4 c6 b2 c5 b1Q e7 Rh7 e8B Be7 c7 Ba6 c8B Rh6 h5 Nf6 c6 Nh7 c7 Rf6 h6 Kc3 Nh3 g1Q+ Nf2 Qb6+ Qd4+ Kb3 Rh3 Bd3 Bg6 Qh2 Rg3 Qh4 Bb7 Bf8 Kf4 e3 c8B e2 Bh3 e1B Bb2 Qg5+ Kf3 f4 Rd1 Bb5 Ke4+ f3 Bc3 Bc4 Bc6 Bf7 B8b7 Qba5 Bf5 Qdb6 d8R Bh5 d7 Bd6 Re8 Bd2 Re6 B2f4 Rd3 Rf7 Nd1 f2 Ne3 f1Q Rd1 Qe1 Bb2 Bfe5 Bg6 Rf1 Bc3 Nf8 h7 Rg1 h8R Qf2 Bh7 g6 Qc5 Bf4 Bg7 Qh2 Qd4 Qf2 Rg2 Bh2 Rg3 Qfe1 Kd3 Qf2 Bh1 Qff6 Ke4 Qh4 Bg8 Qfg5 Rh6 Nh7 Kf3 Nf6 Bh7 Nd5 Ke4 Nf6+
nN6/NqN1p3/2bR1Qp1/2bnP2Q/nN4Pp/1kr4K/1Pr2NN1/1R4Bb w - - 1 2 legal: proof: h4 c5 d4 b5 dxc5 g6 a4 Nc6 axb5 Nf6 h5 Nb8 e3 Ng8 Bd3 Bh6 hxg6 Bf8 g7 Qb6 Bf5 Qd8 Bg6 fxg6 Kf1 Kf7 c4 Ke6 f4 h5 c6 d5 b6 a5 c5 d4 f5+ Kd5 b7 Kc4 e4 h4 f6 a4 e5 a3 c7 d3 f7 d2 c6 a2 Ne2 Be6 c8Q Qd4 c7 Qd3 Nc3 Kb4 Nd5+ Kc4 Nb4 Nf6 g8N Bd5 Rb1 a1N Qf5 Qe4 c8N Bc6 Na7 Nb3 Nf4 Nc5 Nh6 Nba6 b8N Nd5 Qf6 Nac7 Ng4 Na4 Nf2 Bh6 Qh5 d1B f8N Bf3 g4 Kb3 Ng2 Be3 Ne6 Bc5 Be3 Rc8 Kg1 Re8 Kh2 Rc8 N4a6 Qb4 Rhd1 Qb7 Nb4 Be4 Kh3 Bf3 Nb5 Ra6 Na7 Na8 Nc7 Be4 Nf4 Bh1 Ng2 Rb6 Nc2 Rb4 Rd2 Rc4 Nb4 Ndc3 Rd6 Nd5 Nfd3 Rc2 Bg1 Rf8 Nf2 Rf7 Qfg5 Rf4 Qf5 Rfc4 Qf6 R4c3+
1q3Bbb/1B3p1P/4r3/4NpR1/NpQN1P1k/P1BNK3/qr1n4/1r1n1B1N w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 d5 cxd5 Rh6 b4 Nf6 bxa5 Ng8 a3 Rh7 Ra2 Rh6 Rc2 Rh8 Rc3 e6 Rf3 Qg5 Rf4 Qd8 Rf5 exf5 d4 Ke7 Kd2 Kf6 h4 g5 e4 c5 h6 b5 a6 g4 a7 g3 e5+ Kg6 e6 g2 e7 b4 e8N c4 h5+ Kg5 h7 c3+ Ke3 c2 d6 Ba6 d7 Bc4 d5 Bb3 d6 Qa5 d8N Ne7 h6 Na6 d7 Ng6 Nf6 Nf4 Qd5 Nd3 Qc4 Bg7 Nc6 Qb5 d8N Qb8 Nd4 Nac5 Nh5 Ne4 Nf4 Nd2 Nge2 g1Q N8c6 Qh2 Ne5 Kh4 Rg1 Re8 h8B Re6 f3 Nf2 Nbc3 Bf6 Bb2 c1R Na4 Bd1 Bc3 Rb1 Bg7 Rb2 Bf8 Bh8 Nd3 Rb1 f4 Rb2 Nec1 Bh5 Rg8 Bg6 Nce2 Bh7 Rg5 Bg8 h7 Qg2 Ng3 Qd5 Qc5 Qa2 Nh1 Qd8 Qd6 Rc8 a8B Rc5 Qd5 Qb8 Bb7 Rb1 Ba1 Rc2 Bc3 Rcb2 Qc4 Nd1+
4rK2/n3p3/NP4rn/1NpnP1qN/BbP2BkB/N5pR/8/B1N2qQb w - - 0 2 illegal: No possible last move, all moves rejected
3b1q1R/1pBp4/1Q1nr1n1/2qb3R/QPr2RR1/1P2P1R1/RK1p2N1/3q1Nk1 w - - 0 1 illegal: No proof kernel forced: wxLB
b1K3R1/2p3rN/2N2p2/q1BBb2B/2nrp2N/q2B1Nrn/3PPP1Q/2k2B2 w - - 0 2 legal: proof: c4 a5 b4 g5 a4 b5 h4 d5 cxd5 Nc6 hxg5 Qd6 bxa5 Qd7 a6 Nb8 a5 Qd8 Ra4 bxa4 g4 Kd7 g6 Kd6 a7 Ke5 g5 Kd4 g7 e5 g6 h5 d6 f6 d7 a3 a6 a2 Nf3+ Ke4 Nc3+ Kf4 Ne4 a1Q Ba3 h4 Rg1 h3 Bc5 h2 Neg5 h1R Nh7 Qe8 d8N Qb5 Nc6 Ne7 g8B Nd5 g7 Rh3 Bf7 Ke4 g8N Bb7 Nh6 Qba5 Rg8 Bd6 Bh5 Nd7 Nf5 Rg3 N5h4 Rd8 a8B Nf4 a7 Nb6 Qc1 Nh3 Kd1 Rg7 Kc2 Nc4 Kb3 Kd5 Qb1 Rg3 Qf5 Rg7 Qf4 e4 Qh2 Q5a2+ Kb4 Be5 Kb5 Qa3 Na5 Bc6+ Ka6 Rd6 Bb7 Q1c3 Re8 Rhg8 a8B Rg3 Ka7 R8g7 Ba6 Bb7 Nc6 Qca5 Kb8 Rdd7 Be7 Rd6 Rg8 Kc5 Ncd4 Kb4 Nc6+ Kb3 Bf8 Rd4 Bc5 Kb2 Bb5 Ba6 Bb7 Kc1 Kc8 Nb2 Bd3 Nc4 Nb8 Bb5 Bd5 Be8 Ng1 Bc6 Ngf3 Ba8 Nc6 Qa7 Qh1 Qb6 Qh2 Qba5
2nb1b2/Rb1np3/1RB2P1R/N1R5/NprN1p2/1P2PR1N/2K3Qq/kr2q3 w - - 0 2 illegal: No possible last move
7b/Q2pr3/1Q4P1/bNpP3k/2Q1nqb1/K1P2Q1N/pQ2B1br/BR3b1Q w - - 0 1 legal: proof: e4 f5 exf5 b5 b4 g5 f4 Bg7 a4 Be5 axb5 Kf8 Ra4 Bg7 f6 Ke8 f5 Bf8 g4 Nc6 h4 Ba6 h5 Rb8 Ra3 Ra8 Rf3 Bc8 Rf4 gxf4 g5 Ne5 Na3 Ba6 Nb1 Ng6 hxg6 Bc8 d4 e5 Kd2 c5 Kc3 a5 Kb3 h5 b6 h4 f7+ Ke7 b5 f3 b7 a4+ Ka3 e4 b8Q f2 b6 h3 g7 h2 g6 Kf6 b7 e3 Bb2 Kg5 f6 e2 Nc3 e1B Qa7 Qc7 b8Q Ba6 Nb5 Ba5 c3 Qf4 Qbb6 Re8 Ba1 Re7 Be2 f1B Nh3+ Kh4 Rg1 h1B Qb3 Bhg2 Qb2 Bab7 Rh1 Bbf3 d5 Nh6 g8Q Bg7 f8Q Ng4 f7 Nf6 Qh7+ Bh5 Qc8 Ne4 f8Q Bf6 Qca6 Bd4 Ka2 a3 Kb3 a2 Ka3 Qe3 Qf3 Qf4 Nc7 Bf6 Qc4 Be5 Qh6 Rhh7 Nb5 Bh8 Qg7 Bg4 Qgd4 Ref7 Qg1 Re7 Qh2 Rh5 Rg1 Rh6 Qh1 Kh5 Bd3 Be2 Rb1 Bef1 Be2 Kh4 Nf2+ Kg5 Nc7 Rhh7 Nb5 Rh2 Nh3+ Kh5
bR4B1/bn3p1p/QR1N1bNR/qNN3p1/4PPR1/1b5P/5k1r/2nK2Rn w - - 0 1 illegal: Other
2N5/pQ1NRN2/2Q1p2N/3pNBpk/1Br1P3/P2P1r2/K1nnb3/1b2Nbq1 w - - 0 3 legal: proof: f4 b5 c3 g5 fxg5 b4 Qc2 Bg7 Qb3 c5 Qd1 Bd4 b3 c4 bxc4 Bb6 c5 b3 Qc2 Bc7 Qd1 Ba5 g4 h6 g6 Bb7 g5 Rh7 g7 Bb4 cxb4 Qc7 a3 Rh8 g6 Bc8 Ra2 Ba6 Rc2 Bb7 Rc3 Bc8 Rg3 Qd8 Rg5 hxg5 e4 f5 h4 d5 b5 e6 d3 b2 Kd2 f4 Kc3 f3 Kb3 f2 h5 Qe7 c6 Qf7 c7 Ba6 c8N Qf8 b6 Rh7 b7 Qf7 h6 Qf3 Qc2 Qe3 Qc6+ Nd7 b8Q Qh3 Bd2 Bb5 Qbb7 Qe3 Bh3 f1B Bf5 Ba4+ Ka2 Nf6 g8N Ng4 g7 Kf7 Nf3 Qg1 Ne1 Bd1 Nf6 Bde2 g8N Ne3 Bb4 Nc2 Nd2 Rg7 h7 Rb8 Qbb6 Ne5 Ndf3 Nc4 Nd7 Nd2 Qbb7 Rg6 Rh5 Rf6 h8N+ Kg7 Nh6 Rf8 Ncb6 Rbc8 Nfe5 Rc7 Nc8 Rf7 Bg4 Rf3 N8f7 Kh7 Nc4 Kg6 Rh2 Rh3 Bf5+ Kh5 Rf2 Rf3 Nce5 Rh3 Bh7 Re3 Rf6 Rh3 Bf5 Rf3 Rg6 Qd4 Rg7 Qg1 Qcb5 Rc5 Q5c6 Rc4 Nd8 Nb3 Re7 Nd2 Ndf7 b1B+
2NB1qQr/p7/1b1BpPQp/1BKN1R2/2nr2B1/1k1P2Bb/p6P/bB5n w - - 0 1 illegal: No proof kernel
1r1nk3/KP1bp1bQ/p1p5/1BNBP1N1/3R1q2/B1bp1n2/B1Pq1NB1/2N5 w - - 0 1 legal: proof: d4 g5 f4 b5 fxg5 b4 d5 c6 d6 b3 axb3 Na6 b4 Nb8 b5 Bb7 Ra3 Ba6 Ra1 Bc8 g4 h5 b4 a6 g6 Nf6 g5 Ra7 Ra3 Ng8 Rg3 Rc7 Rg4 hxg4 dxc7 Rh7 Qd4 Rh5 Qd1 Rh8 Kd2 d5 Kd3 f5 Kd4 f4 Kc5 g3 Kb6 f3 h4 d4 e4 g2 h5 f2 h6 Nf6 h7 Ng4 e5 Nh6 g7 Nf5 g8B Kd7 g6 Nd6 g7 Nf5 Ba3 Ng3 Qh5 Bb7 Ba2 Ba8 g8B Bg7 Nd2 Qe8 c8B+ Kd8 Ne2 g1B Bgd5 Bb7 Rh4 Nd7+ Ka7 Ba8 b6 Qf8 b7 Qf4 b8N Nf5 b5 Bb7 b6 Nf8 Nd7 Ne6 Ne4 Qd2 Ndc5 d3 Bg2 f1Q Nc1 Bd4 Nf2 Re8 h8N Bc3 Rd4 Nh4 Qh7 Nf3 Bac4 Rg8 Bb5 Ke8 Nf7 Nd8 Bce6 Bc8 b7 Bd7 Ng5 Rh8 Ne2 Qfc1 Ba2 Qf4 Bed5 Qcd2 Nc1 Ne6 N1b3 Kf8 Ngh3 Kf7 Nc1 Rb8 Ng5+ Ke8 Qh3 Nd8 Qh2 Qf7 Qh7 Qff4
K5QR/p1bp4/n1pR3N/N4pq1/PN2B2N/n1n1rq2/R2P1P1k/1rR3N1 w - - 0 3 legal: proof: e4 h5 h4 g5 c4 b5 cxb5 f6 g4 Kf7 b3 Ke6 e5 Kd5 e6 Bb7 Bb2 Kc5 Be5 Be4 Bg3 Bf5 gxh5 Bc2 h6 Bg6 h5 Bf7 Bh4 gxh4 exf7 Kd6 Ke2 Ke5 Kd3 Kf4 Kc4 e5 a4 h3 b6 h2 Kb5 f5 b7 e4 b4 e3 h7 e2 h6 e1N Nc3 Qc8 Bg2 Nc6 Ka6 Nge7 b5 Nf3 b6 Qe8 b8R Qd8 Kb7 Ne1 Nd5+ Ke5 Be4 Nc2 Ra2 Bg7 f8N N6b4 Qg4 Na6 Nb4 Nd5 Ng6+ Kd4 Qg2 Nc3 Nh4 Re8 h8R Qg5 h7 Be5 Qg3 Re6 Rbf8 Na3 Rf6 Rae8 Qg2 R8e7 Ka8 Bg3 b7 Rb6 b8N Ke5 Nhf3+ Kf4 Rd6 Kg4 N8c6 Re5 Na5 c6 Nh4 Rbb5 Bc2 Re3 Qd5 Rb6 Be4 Rb7 Qg8 Rb5 Ne2 Kh3 Rc1 h1Q Ng1+ Kh2 Rd4 Qf3 Nc2 Bb8 Rd6 Rb1 Nb4 Qgg4 Qc8 Nab5 Rg8 Bc7 h8N Qfh3 Nf7 Qgg3 Rh8 Na3 Nh6 Qg5 Qg8 Qf3
1B1RnB1R/8/N1R1p1rb/1Rn3p1/1pBpRBqb/2rPPb1k/1P3Q2/2n2K2 w - - 0 1 illegal: No proof kernel
6bB/2b1n1Pn/1b2qpKB/1P2k3/rRp5/3b3B/1R1NBBnP/1BN3B1 w - - 0 1 illegal: No proof kernel
2BB4/1B2qB1n/1r1N1Pn1/P1bR1rR1/3NB1B1/1q1KPr2/1k1b1r2/3R1n2 w - - 0 1 legal: proof: f4 c5 b4 e5 fxe5 f5 d4 a5 dxc5 h5 bxa5 b6 Qd4 Bb7 g4 Be4 Qc4 f4 Qe6+ Qe7 Qf5 Qd8 Qg5 Bf5 gxf5 Ne7 Qg2 Ng8 Qg4 hxg4 Kd2 Ke7 a4 g5 h4 d5 c4 d4 h5 b5 h6 b4 a6 f3 a7 g3 f6+ Ke6 c6 g2 c5 Kd5 h7 Kc4 e6 Kb3 c7 f2 c8B g4 c6 d3 e7 g3 e8B Nd7 c7 Ne7 Nf3 g1R Ba6 g2 c8B Ng6 Bab7 Bc5 Ba3 Ndf8 Rh5 Qe7 Rd5 Rh1 Bed7 g1B Bg4 Rh5 Nc3 Rf5 Rd1 Rg8 h8R Nh7 Nb5 Rd8 Bg2 f1N+ Kc1 Rg8 Nd6 d2+ Kb1 Kc3 Nd4 b3 Be4 b2 a5 Rb8 a8B Be3 Nb3 Rf3 Nd4 Rd8 Rg8 Rd7 Ba6 Rb6 Bc4 Rb5 Bab7 Bf4 Ka2 b1R Bb3 Rb2+ Ka1 Ra2+ Kb1 Rc7 Rg7 Rc6 Rg8 Rcb6 e3 Bg3 Rg5 Be1 Rd8 Bb4 Bc4 Rbf5 Bf7 Bc5+ Bb2+ Kb4 Kc2 Ka4 Kd3 Kb4 Bc3+ Ka3 Bb4+ Kb2 Ne8 Rc6 Rd5 Ra6 Nd6 Rb6 Ra1 d1Q+ Kc4 Qa4 Kd3 Bd2 Rd1 Bc1 Be1 Bd2 Bg3 Qe6 N6b5 Qd7 Bc7 Qe7 Nd6 Qb3+ Ke2 Kc3 Bd8 Rc2 Bc6 Kb2 B6b7 Bc3+ Kd3 Rg2 Ne2 Rgf2 Nd4 Bd2+
1r1r1BK1/R2R1B2/b6R/2bP4/2Rp1N2/nr3bPP/R4p1R/B3Nqkn w - - 0 1 legal: proof: c4 d5 d4 h5 b4 a5 bxa5 g5 cxd5 e5 d6 h4 d5 h3 gxh3 g4 Qd4 g3 fxg3 exd4 Kd2 Kd7 Kd3 c5 Ke4 b5 Kf5 c4 a4 b4 e4 c3 e5 c2 e6+ Ke8 a6 b3 a5 f6 Kg6 f5 e7 Kd7 Kf7 b2 e8R f4 a7 f3 a6 Qc7 Nc3 b1B Be2 Nc6 Bb2 c1R Re6 Nb8 Ra2 Qb6 Rh6 Nc6 Ba1 Rb8 a8R Nb4 a7 Nf6 h4 Ba6 h5 Re1 h3 Qc6 Rh2 Be4 Bb5 Rd8 Nce2 Rb1 Nf4 Rb3 Rc8 Nc2 a8R Ng4 Be2 Qb6 Rc4 Na3 Ra7+ Qb7 Bd3 Nf2 Bb1 Nh1 Bc2 f2 Nf3 Rc8 Ne1 Bf3 Bg6 Be7 Kg7 Rhd8 Bf7 Bf8+ Kg8 Rb8 Re6 Qc7 h6 Qb7 h7 Qc7 h8B Qb7 Ra8 Qb5 Rb4 Qf1 Rh6 Kc8 d7+ Kc7 Bf6 Kd6 Be7+ Ke5 Rc4 Ke4 Ra7 Ke3 Bf6 Ke4 Bg7 Bc5+ Bf8 Re8 d8R Ke3 Rdd6 Red8 Bb2 Kd2 Ne6 Ke2 Rdd7 Qg2 Ba1+ Kf1 Nf4 Kg1 Rdb7 Qf1 Rc7 Be7 Rd7 Bc5
1r2bB2/1r3kP1/1B6/B2Nb3/BRR2BR1/P1KpP1n1/q3n1pB/Nb4n1 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 f5 g4 Ra6 gxf5 Ra8 d4 g5 h4 g4 d6 Qd7 d5 Qe7 Qd4 Qg5 hxg5 exd4 Kd2 b5 f4 c5 d7+ Ke7 d8B+ Ke8 d6 h5 f6 b4 a6 b3 f7+ Kd7 a3 Ke6 g6 h4 d7 h3 a7 b2 g7 g3 Bb6 c4 d8B h2 Nh3 Nd7 Rg1 Bd6 f8B h1N f5+ Kf7 f6 Nh6 Nf4 Be5 Bd6 Rb8 a8R Rb7 Ra4 Nf5 Nd5 c3+ Kc2 Rg8 Nd2 b1B+ Kb3 c2 Rc4 Rf8 Kb4 Rh8 Nb3 d3 Bf4 c1Q e3 Qd1 Bg2 Nd4 Kc3 Qe2 Bf3 Qh2 Bd1 Qa2 Ba5 Re8 Bdb6 Rf8 Nc5 Rg8 Ba4 Rh8 Nb3 g2 Rc1 Ng3 Rc2 Ke6 f7 Rd8 f8B Kf7 Bdc7 Bd6 Rf2 Nh5 Rf1 Bc2 Rh1 Ne5 Raf1 Nef3 Rb1 Bd7 Bg3 Ng1 Na1 Rdb8 Rbb4 Be8 Rh4 Bb1 Bh2 Ng3 Rg4 Bf4 Bd8 Bd6 Bg5 Be5 Bf4 Nde2#
2r4b/1Rp5/BP3p2/2B1Bn1N/Bb1P4/2k4K/1bP1rB1N/1B1RqrnR w - - 0 1 legal: proof: e4 a5 a4 d5 exd5 g5 f4 b5 fxg5 Qd7 axb5 Qd6 b3 Qd8 g4 h5 b6 a4 g6 a3 g5 Bd7 Qg4 Ba4 bxa4 hxg4 Kf2 Kd7 Kg2 Kd6 h4 Kc5 d4+ Kb4 g7 e5 h5 e4 a5 e3 g6 g3 d6 e2 a6 e1B d7 a2 a7 Bd6 h6 Qc8 d8B Qe6 h7 Nd7 Be7 Ngf6 g8R Qe2+ Kh3 g2 g7 Qb5 Nd2 Ng4 Ne4 Ne3 Nf6 Qe2 Nf3 g1R Rb8 Rg8 h8B Re8 g8B Ne5 Rb7 Nf5 Nh5 Kc3 Be3 Rac8 Nh2 Nf3 a8B Be5 Rd1 a1B Bc5 Bb2 Bf2 Qe3 Bc4 Rf1 Ba6 Bd2 Bf6 Qe1 Bg7 Bf6 Bh8 Re2 Bg7 Bfg5 Be5 f6 Bb3 Bh6 Ba2 Bg7 Bb1 Bh8 Rb8 Bh6 Bc6 Bf8 Ba4 Bd6 Ba3 Bb4 Rb7 Ba5 Be7 Bb4 Bc5 Ng1+
5BRb/B7/1KB5/R1RpBq1n/3pbPqP/r6B/kNnPN3/1b1B3r w - - 0 1 legal: proof: h4 g5 a4 f5 e4 h5 exf5 c5 Qg4 b5 axb5 Qa5 Qb4 Qa3 Qd4 Qh3 hxg5 cxd4 g3 h4 Ra6 Qg4 Ra4 h3 Ra1 Qh4 gxh4 Ba6 Bg2 Bb7 Bf1 Bc8 Ke2 Kf7 Kd3 a5 Kc4 e5 b4 d6 f4 h2 b6 a4 Kb5 a3 c4 a2 g6+ Kf6 c5 Ke7 g7 Ra3 f6+ Ke6 f7 Kd5 b7 Nf6 g8B Rh7 c6 Rg7 c7 Nc6 b8B Nh5 Kb6 Bf5 b5 Nb4 c8B Nc2 Bh3 Kc4 Ne2 Kb3 Bd7 Rg1 Ba7 Bg7 Bc6 Bh8 Nbc3 e4 Nd1 e3 Nb2 Rf1 f8B+ d5 Be6 Bd3 Beg4 Bg6 Rg1 h1B Bg7 Bf3 Be5 Bfe4 Bf3 Bgf5 Rg8 Rh1 Kb7 Ra5 b6 Ra3 Kc7 Bg6 b7 Bh7 Kb6 Bhg6 Nc3 e2 b8R e1Q Bd1 Qg3 Ne2 Qg4 Ra8 Bh7 Rb1 a1Q Rac8 Qa2 Ra1 Qb1 Rc7 Ra4 Ra2 Rc4 Ra5 Ra4 Ba8 Ra1 Rcc5 Ra3 Bc6 Ka2 Bb5 Bef5 Be8 Na1 Rc2 Bhg6 Bc6 Ra4 Rc3 Qc2 Nc4 Bh7 Ba3 Bhg6 Bad6 Ra3 Bf8 Qe4 Bf6 Qe6 Be5 Bb1 Nb2 Nc2 Rc4 Be4 Rcc5 Qef5
2B2nKR/qbb4B/rpbP2q1/4p2B/1R2B2R/BBP4P/8/2N1kNbr w - - 0 1 legal: proof: d4 a5 g4 d5 f4 h5 b4 g5 bxa5 c5 dxc5 d4 e4 Nc6 fxg5 Rb8 g6 Nb4 g5 Nd5 exd5 Ra8 Qg4 hxg4 Kf2 Kd7 Kg3 f5 Kf4 d3 Ke5 g3 a4 f4 c6+ Kc7 c3 g2 a6 Kb6 d6 Ka5 c7 f3 a7 f2 g7 d2 g6 d1B Nd2 b6 Be2 f1Q Ba3 e6 Rb1 Rh3 Bh5 Bb3 Ne2 g1B Nc1 Bd5 Rb4 Qg2 Nf1 Nf6 g8B Qd7 g7 Be7 Bh7 Bc6 g8B B8b7 c8B Bd8 Bgf7 Ka6 a5 Bc7 Bfg8 Qg6 Bf7 Rb8 a8B Rh4 Rd4 Kb5 a6 Rh3 a7 Qe7 Rb4+ Kc5 Bfg8 Nd7+ Kf4 Nf8 Ke5 Qd7 Bf7 Qd3 Kf6 e5 Kg7 Qg6+ Kh8 Qe7 Bc4 Rh4 Bb5 Kd5 Bc4+ Ke4 Bb3+ Bd4 Ng3+ Ke3 Nf1+ Kf2 h3 Rf4 Rg1 Ke1 Rg4 Bg1 Rh4 Rf2 Rbc4 Rh2 Rb4 Ba6 Bab7 Rh1 a8R Qef7 Bf5 Qe7 Bbc8 Bab7 Be4 Qd7 Ra5 Ra8 Rc5 Qf6+ Kg8 Ra4 Ra5 Qh6 Ra8 Ra6 Rb8 Qg6+ Kh8 Ne6 Nh2 Bd8 Nf1 Ba8 Bb7 Qe7 Bc8 Qc7 Bd7 Qa7 Rc8 Bc7 Rf8 Qe8 Bc8 Bab7 Rg8 Nf8 Kg7 Bb5 Rh8 B5c6 Kg8 Qg6+
KBn5/4k1NP/Nq6/2q2r1P/1pN1b1bR/NPr3bB/NRnq4/N4Rr1 w - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Rh7 Qc2 Rh8 Qb2 axb2 Ke2 g5 Ke3 c5 Ke4 b5 h4 e5 d4 b4 a4 g4 f4 g3 a5 g2 a6 c4 a7 c3 f6 c2 f5 Qe7 h6 Nd7 h5 Bb7 h7 Bc8 d6 Nb8 Kd5 e4 f7+ Kd8 f6 e3 d7 e2 Rh4 e1Q Ra2 Qf2 Na3 b1B Bf4 c1Q Ne2 g1R Bh3 Rg2 Nc3 Qee1 Rb2 Qe7 Na2 Bg7 f8N Rg4 f7 Nh6 Ng6 Bf6 f8R+ Qe8 Ne5 Ng8 Nec4 Nc6 Bb8 Ke7 d8N Qd1 Ne6 Qg6 Ng7 Be5 Kc5 Rf4 Kb6 Bg4 Kb7 Be4 d5 Qc5 Rf6 Qd2 d6+ Kd7 Rf8 Nge7 Rf7 Kd8 d7 Nc8 Rf6 Ke7 d8N Bd6 Nde6 Rg8 Nd4 Rf5 Ndc2 Bg3 Na1 Nd4+ Rc6 Rd5 Rf6 Nc2 Rf1 Nb6 Bc7 Rac8 a8N Rf5+ Ka7 Qe6 Bb8 Rc6 Kb7 Nc8 Nc7 Qed6 Ka8 Qd8 Nce8 Qdb6 Nc7 Qg1 Ne5 Bh2 Ba7 Be2 Bb8 Qgf2 Nge6 Rg1 Ng7 Bg4 Na6 Bg3 Nf7 Qfd4 Nd6 Rc3+ Nb7 Bd3 Na5 Qdc5 N5c4 Be4#
4R3/2qbpB1n/1b1BnN1B/rr3bp1/1R1KP3/1P3qBP/3kN3/Bn2NB2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 g4 h6 g6 Kd7 g7 Rh7 g5 Ke8 g6 Rh8 Qa4 Nd7 Qh4 Nb8 Qg5 hxg5 Kf2 Kd7 Ke3 Kd6 d4 a5 b3 f5 h3 c5 b6 c4 b7 f4+ Ke4 f3 Ra4 c3 Na3 f2 Bb2 c2 Ba1 c1Q Nc2 Qc7 Rb4 a4 Ne1 Nd7 b8B a3 e3 a2 Ne2 Qc6 Rh2 Nh6 g8N Bg7 Nf6 Ng4 Kd3 Ra5 e4 Nc5+ Kc3 Bf5 Rg2 Bf8 g7 Qa8 g8B Bg7 Ba7 Qf8 Bf7 Rh6 Rg3 Bh8 Rd3 Rb5 Bb2 a1N Rf3 Nc2 Ba1 Na3 Rd3 Nb1+ Kc4 Qcb8 Rc3 Kc7 d6+ Kc6 d7 Qc7 d8B Kd6 d5 Ke5 d6 Bg7 Ng8 Nf6 d7 Nh7 Bb6 Rd6 Nf6 Re6 Ba7 Ra6 Bb8 Raa5 Ba7 Qc6 Bc7+ Qd6 Bcb8 Qc7 d8B Bh8 Nc1 Kf4 Kd4 Qh6 Rcc4 Qh5 Bb6 Qf3 Rc2 Nd3 Rc6 Nc5 Rd6 Qc6 Bdc7 Bg7 Rd8+ Qd6+ Kc4 Ke3 Ne2 Kd2 Re8 Qd7 Bd6 Qc7 Kd4 Bh8 Bg2 f1B Bg3 Qc6 Bbd6 Qc7 Nc3 Bc4 Bf1 Bce6 Ne2 Bd7 Bde5 Nb7 Bc5 Bg7 Bcd6 Nc5 Ng4 Bh8 Bg7 Ra8 Kd5 Raa5 Bh6 Bd4 Nf6 Bg1 Ke5 Na4+ Nd5 Bc5 Nf6 Bb6+ Nd5 Nc5 Nf6 Qg2 Kd5 Qf3 Kd4 Ne6#
3q3k/B1nqRPN1/BP6/prB1pBn1/4R1K1/3NP1bn/1r1N1n2/3b1B1B w - - 0 1 illegal: No possible last move
2bR4/1B1R2B1/2Kb1RP1/1PR1b3/p7/PN1BRnn1/pkNpR3/1rqr1r2 w - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 f5 exf5 b5 d4 b4 dxc5 Bb7 a3 Ba6 Qd5 Bc8 Qa2 b3 Rh3 bxa2 Rh6 Na6 Rh1 Nb8 Kd2 Kf7 Ke3 e5 Ke4 h5 Kd5 a5 f4 d6 g4 a4 c4 e4 b4 h4 g6+ Kf6 c6 h3 g5+ Ke7 f6+ Ke8 f5 h2 f7+ Ke7 c7 e3 g7 e2 f6+ Kd7 g6 e1B c5 Ra6 b5 Bb4 Nf3 Ra8 Bh6 Bc3 Nbd2 Be5 Re1 Nc6 Bd3 Nd4 Re2 Qe7 Rb1 h1R Nb3 Rd1 Ne1 Nf3 Nc2 Qe8 Re3 Qd8 Rb2 Ne7+ Kc4 Ke6 g8R Nf5 c6 Ra7 Bg7 Rhh1 Rh8 Qe7 Rh7 Ng3 Kb4 Qd7 Kc4 Be7 f8R Ra6 Kb4 Kd5 f7 Qh3 Rfh8 Qf1 f8R Rb1 Rhg8 Qc1 Rf6 Rd1 Rd8 Rb6 Ka5 Rb7 Ka6 Ra7+ Kb6 Ra8 Be4+ Kc4 Bd3+ Kc3 Rh2 d5 Rh7 Bh3 c8B d4 c7 B7d6 Bb7 Bc8 Kc6 Rf1 Ne1 Rb8 Rbe2 Ra8 Nc2 Kb2 Bf5 d3 Be4 Bf5 c8R d2 Bd3 Rd1 Rc7 Bc8 Rh5 Bc3 Rc5 Bce5 Rcf7 Ra7 Ba8 Re7 Bb7 Re8 Re7 Rh8 Ref7 Rhh1 Rfd7 Rhf1
1r1r1q2/pB1BP2k/1n2qBR1/2Kpp1Rr/1n1P2B1/4B2N/R1NbP1B1/6n1 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 h4 Bb7 hxg5 Bc6 b6 Bb7 b5 Bc8 f4 e5 f5 Ba6 c3 Bb7 Qb3 Bd5 Qb4 Be6 fxe6 cxb4 g4 d5 d4 h5 Kd2 f5 b7 h4 c4 h3 b6 b3 Kc3 h2 c5 b2 Kb4 f4 g6 f3 g7 f2 g5 Qf6 g6 Qd8 Ra2 Rh3 Na3 b1N Bg2 f1Q Nc2 Rf3 Be3 Qc8 Nh3 Qc1 Rg1 Nf6 g8B h1R g7 Ke7 c6 Qd1 c7 Qf1 Kc5 Nc6 b8R Nb4 b7 Nd2 Bh7 Rf2 g8B Bh6 Bf5 Kf8 Bg4 Kg7 Bh7 Qg8 c8B Nf3 Bhf5 Bg5 Bd7 Qe8 Rc8 Rb8 Rc6 Qg6 Bd3 Kh7 Ba6 Rd8 b8B Bf4 Bc1 Bd2 Bd6 Qg8 Bb7 Rh2 Rh1 Ng1 Be7 Rf5 Rd6 Rh5 Rb6 Qf8 Rc6 Qf5 Rb6 Be1 Be3 Bd2 Rc6 Ne8 Rca6 Nd6 Bf6 Nc4+ e7 Qe6 Rc6 Nb6 Rd6 Nf3 Rf1 Ng1 Rf5 Rh6 Rg5 Rg6 Nf2 Rh5 Nh3 Rg8 Bg7 Qef5 Rdg6 Qe6 Bf6 Rb8 Bb5 Qg7 B5c6 Rgd8 Bd7 Qf8
RNQ1qk1b/R1q3RP/2b5/3nNK2/r6B/1n1Q1rNR/PqN2P2/7r w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 h5 g4 c6 gxh5 b6 Bb5 cxb5 axb6 Qc7 Ke2 Qd6 Ke1 Qd8 Ke2 e5 Kf3 g5 Ke4 g4 h4 g3 d4 g2 b7 b4 d6 b3 f6 b2 d5 Rh6 f7+ Kd7 Bg5 Qc7 Kf5 e4 Ne2 g1R Na3 b1Q Rh3 e3+ Qd3 Qa5 Ng3 e2 Nc2 Be7 f8R e1Q Rf7 Ke8+ d7+ Kd8 Rg7 Qbb5 Rb1 Rb6 h6 Na6 b8N Nc5 h5 Bf6 h7 Qe8 h8Q Rh1 h6 Nb3 h7 Bb7 Bh4 Bc6 Re1 Qc3 Ree7 Ra4 Ref7 Qba5 Re7 Qb2 Ref7 Kc7 d8N+ Kd6 Ra7 Rb7 Nf7+ Ke7 Ne5+ Kf8 d6 Qc7 d7 Rbb4 d8R Re4 Nf7 Re3 Na6 Bd4 Rda8 Bc3 Nb8 Rf3+ Kg5 Ke7 Kg6+ Nf6 Kg5 Nd5 Ne5+ Qf7 Qc8 Bd4 Rg6 Qe8 Rg7+ Kf8 Ng4 Nf6 Rg6 Re3 Kf5 Nd5 Rg5 Bg7 Ne5 Bh8 Rg7 Rf3+
2Q2Q2/1K3r2/NQ1pPR2/1P1Bb1N1/2Qq2qN/2b3Np/3k1bP1/2q1r1R1 w - - 0 1 legal: proof: a4 b5 axb5 f5 d4 e5 f3 c5 dxc5 Bb7 Bd2 Be4 Bc1 f4 e3 Bg6 e4 Bf5 exf5 e4 Ra4 e3 Ra2 Ke7 Ra1 Ke8 h3 g5 Bd3 g4 Bf1 e2 Bd2 g3 Be3 Nf6 Kd2 Ne4+ fxe4 Nc6 Bf2 gxf2 h4 Nd4 Kc1 Ne6 Kd2 Ng5 hxg5 Qb6 Rh2 Qb8 Rh1 Qd8 b6 Ke7 Kc3 e1B+ Kc4 h5 Kb5 a5 b4 f3 c4 h4 b7 a4 b8N h3 f6+ Ke6 e5 Kf5 g6 Ke4 f7 Ke3 g7 a3 g8N a2 c6 Bd2 c5 Bg7 e6 Bf6 f8Q Bb2 c7 Bf6 Kb6 Rh7 b5 Rf7 c6 Ra3 Ne7 Ra5 Ng6 Bg5 Kb7 Rh7 Nc3 Rf7 Na6 Qf6 Nce2 Bc3 Qdd6 Qd4 Ng3 Kd2 Bc4 f1Q Nh4 f2 Bd5 Qe2 Rf1 Qeg4 Qc5 Be3 Ngf3+ Kd3 Ng5 Kd2 Rhg1 Ra4 Ra1 f1Q Qb6 Rb4 Re1 Rb1 Rc1 Qfd1 Rf1 Qc2 Rf6 Bf2 Rg1 Rd1 c8Q Qc1 c7 Re1 Qcd8 Bb4 c8Q Bd6 Qdc7 a1B Be4 Be5 Bd5 Bc3 Qc4 d6+
5Q2/1R1Pp1Pr/n2KRp1b/k3BbqN/q1P3Q1/3Q3R/3q4/1R1QNq2 w - - 0 1 illegal: Other
r1Q2N2/bBKnn1kb/b1rR4/3RqP1B/8/P5b1/q1PR1qB1/3R1QB1 w - - 0 1 legal: proof: e4 c5 f4 a5 b4 f5 bxa5 c4 exf5 c3 dxc3 Kf7 c4 Ke8 c5 Ra7 Na3 Ra6 Nb1 Ra8 g4 h5 g5 g6 Nd2 Qc7 Ne4 Qb6 Nf2 Qc7 fxg6 Qd8 Ng4 hxg4 f5 Rh6 Bg2 Rh5 Bf1 Rh8 Kd2 b5 Kc3 d5 Kb4 e5 h4 d4 a6 e4 a3 e3 a7 d3 g7 Kf7 h5 e2 g6+ Kf6 h6 d2 h7 e1B Rh6 g3 Nf3 g2 Nh4 g1Q Bg2 Qd5 Ka5 b4 Kb6 Bg3 Qf1 d1Q Be3 b3 c6 b2 c7 Qh5 Rd1 Be6 c8Q b1B Bf2 Qe2 Bc5 Be1 Kc7 Ba2 Be3 Qb3 Bb7 Qgg2 Bb6 Bfb4 Bg1 Ne7 g8R Bc4 Rgd8 Bc5 R8d7 Rf8 h8R Ba6 g7+ Kf7 g8B+ Kg7 R7d2 Rf6 Bf7 Bg3+ Kd8 Qe5 Bh5 Qgf3 Ng6 Qf2 Re8 Qb1 Nf8 Bg8 Bg2 Rd6+ Kc7 Qa2 Rd8 Bh7 Re6 Qea1 Re5 Re6 R8d3 Nd7 Rd4 Rd6 Re6 Qc3 Rd5 Qe5 Rf6 Rb8 a8B Ba7 Bb7 Ra8 Re6 Rb6+ Red6 Rc6+
2KBB3/2QRr1QP/2rrbB2/r2P3r/3BN3/b3P2k/3q2Nr/Q3n1Qn w - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 axb5 f5 g4 e5 fxe5 d4 gxf5 d3 cxd3 Qd5 d4 Qd8 d5 Nd7 Ra3 Nb8 Rg3 Qf6 Rg2 Qd8 Rg4 hxg4 Kf2 Ke7 Ke3 c5 Ke4 a5 h4 g5 d4 c4 b6 c3 b7 a4 b5 a3 d6+ Kf7 Kd5 a2 e6+ Kf6 e3 a1R b6 c2 e7 g3 e8Q g4 h5 Kg5 d7 g2 Ke6 g3 f6 Qc7 h6 Ne7 f7 Nbc6 b8Q Na5 d5 Ra6 Nf3+ Kg4 Nbd2 g1R Ne4 g2 Bb2 c1R Bd4 Nf5 Bb5 Ba3 f8Q Qh2 Qc7 Nc4 Qg7+ Kh3 Nh4 Nb2 Qeg6 Nd3 Qg5 Ra5 b7 Ra2 b8B Ne1 Bba7 Rd2 Bf6 Ng3 Bad4 Rf1 Qge5 g1R Ng2 Rf5 h7 Rd8 Ba4 Rgf1 Rg1 Rh5 Qeg5 Rcc5 Qa1 Nh1 Q5g6 Rf4 Kd6 Re8 d8B Re7 Be8 Be6 Qg5 Nd3 Rb1 Ne1 Rb7 Rdc2 Qc6 Rb2 Rd7 Rb6 Kc7 Rf2+ Kc8 Rc4 Qc5 Rd6 Qc7 Rcc6 Nh4 Rd2 Qg1 Qe2 Ng2 Qd1 Nh4 Rh2 Ng2 Qd2
R1QQn3/R7/3q2Kb/1b2P1R1/2r1Q3/1B2P1r1/NPR4N/kqQbr1br w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 f5 f4 e5 fxe5 h6 a4 Nc6 d3 Nce7 Bg5 f4 axb5 Nf5 gxf5 hxg5 Kf2 Kd7 Kf3 a5 Kg4 c5 h4 a4 d4 f3 h5 f2 f6 a3 Kf5 a2 h6 g4 h7 g5 e3 c4 f7 c3 b6 g3 b7 c2 b8R c1R d6 Kc6+ d7 Kd5 Qg4 g2 Rh5 Nf6 Kg6 Ra4 Nf3 g1B Nh2 Re1 Ra8 Bh6 f8R Ne8 Rf6 Rc4 Rc6 Qe7 d8Q+ Qd6+ Qf6 Bd7 Qf4 g4 Rg5 g3 Qf5 Rcc1 Rc2 g2 Qd3 Bg4 Nc3+ Kc6 d5+ Kc5 Qe4 Bd1 Bd3 f1B Bc4 Kb4 Bb3+ Bc4 Kf7 Rg8 h8Q Rg6 Qf1 Rg8 Rb1 a1Q Ra7 Qa2 Ra1 Qb1 Ra8 Rg6 R1a7 Rg8 Qhf6 Rh8 Kg6 Rh7 Qe6 Rc7 Qef5 Bb5 Q5f4+ Rc4 Qe4 Qd8 Qc8 Qd6+ Qf6 Bf2 Qfe6 g1R Qf6 Rg3 Qfe6 Qc7 d6 Bg1 d7 Qd6 d8Q Rd4 Bd5 Rc4 Na2+ Kb3 Qef6 Qa6 Be6 Qd6 Qf1 Re2 Kh7 Bf2 Bf5 Rb4 Rc6 Bc2 Bh3 Rd4 Nb4 Rdd1 Qe1 Rd4 Qd2 Rh1 Qc1 Bd1 Rc2 Bg1 Bf5 Re1 Bh3 Qb8 Kg6 Qd6+ Be6+ Qd5 Na6 Ka2 Bg8 Ra4 Nb4+ Ka1 Na2 Qd3 Bb3 Rc4 Ra6 Qd7 R6a7 Qd6+
2B5/rP5q/2pK4/P3nRNB/k2N1Q2/b2q1B2/bBqPNn2/2rNQ1r1 w - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 d5 c4 f5 cxd5 Kd7 exf5 Ke8 a4 Be6 b4 Nf6 b5 Bc8 Ra2 Ng8 Rc2 Nc6 Rb2 Nb8 Rb4 axb4 Qc2 b6 Qc6+ Qd7 Qxb6 Qd6 Qb7 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 h5 f4 c6 g4 h4 d6 e6 d7 b3 a5 h3 b6 b2 f6 h2 g6 Ra7 g7 Rh3 f5 Qe8 d8N Rh7 f7 Be7 f8Q Rh5 g5 Rh8 g6 Nf6 g8B Qf7 g7 Qg6 Ba6 Ne8 f6 Rh3 f7 Qd3 Ne2 Rg3 Nbc3 b1Q Rf1 h1Q Rf5 Kb4 Nd1 Rg1 Bb2 Nd6 Bh7 Qbc2 g8B Ne4 Bg6 Qhh3 Bh5 Nf2 Qh6 Bc5 f8N Qh1 Nh7 Nd7+ Kf4 Ne5 Ng5 Bd6 Qe7 Bd7 b7 Be8 Bc4 Bf7 Bd5 Qhh3 Bdf3 Qh1 Bg6 Bc5 Qhf8 Qh7 Bgh5 Kc4 Nec3 Nd7 Ne3+ Kb4 Qfe8 Kb3 Qd6 Ba3 Qb8 Rc1 Ned1 Kb4 Qc7 Nf8 Ke5 Ng6+ Kf6 e5 Nde6 e4 Nd4 e3 Qf4 Bd5 Be6 e2 Bc8 e1R Qee5 Rh1 Qe1 Ne5 Nce2 Bf7 Ke7 Rg1 Kd6 Bd5 Qh4 Ba2 Qf4 Ka4+
n4QRb/PkN1B3/1b1B2b1/1B2K1pQ/3rP2N/r6b/7P/1nQ1bqBQ w - - 0 1 illegal: No possible last move
3bNRB1/3Nr1R1/4Q1N1/K4NQ1/n2b2qP/Rb1b2n1/pkPR1P2/n1r5 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f6 h6 fxg7 Qb6 Qd3 Qc7 Qd1 Qd8 g4 Kf7 g5 Ke8 g6 Ba6 Be3 Bc8 Bg5 hxg5 Kd2 d5 Kc3 Kd7 Kb4 Ke6 h4 Ke5 c6 a5+ Ka4 g4 b4 g3 b6 g2 c7 d4 b5 d3 b7 Kd4 b6 e5 Qe1 e4 Be2 e3 Nd2 Kc3 Bh5 e2 Nc4+ d2 Rd1 Rh7 Rc1 Be7 Rd1 Nd7 b8R Nc5+ Kb5 a4 b7 a3 Bf3 Nb3 Ra1 Nf6 g8R Nd7 g7 Nb6 Ne5 Qd4 Bd5 Qg4 Ng6 Be6 c8N Bd8 Nf3 g1N Nd4 Kb2 Nd6 d1B Ne8 Ra4 Qa5 e1B Nf5 Ne2 Rf8 Ng3 g8Q Bb4 Rg1 Re7 Bc4 Bd5 Qe6 Bc5 Rc8 Bd4 b8N B1f3 Nd7 Bfe4 Ra8 a2 Rad1 Na1 Rd2 Bd3 Ka6 Rb4 Qc5 Kc3 Ka5 Rb1 Ra7 Rc1 Ra6 Bh8 Qce3 Kb2 Qg5 Nh1 Rg3 Be5 Ra7 Bd4 Re3 Ng3 Rf3 B3e4 Ra3 Bd3 Qf7 Ba8 Ndf6 Re2 Re7 Re4 Nd7 Bd5 Qff6 Re6 Rg7 Re7 Qe5 Bc6 Qe2 Ba4 Bg8 Bb3 Qe6 Na4+
2b5/3NQN1k/1B2B1qn/1nq1br1p/PB4N1/N3Q1R1/br1P1P2/B5Kb w - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 f5 c4 g5 e4 d5 exf5 g4 cxd5 g3 hxg3 Kf7 g4 Bg7 g5 Ke8 Ra2 Bh6 Rb2 Bf8 Rb4 cxb4 g4 Kf7 a6 Kg7 g6 e5 g5 h5 a7 b5 d6 b3 d7 b4 Bc4 b2 Kf1 e4 Qf3 e3 Nh3 e2+ Kg1 b3 Qe3 Qe8 d8B Bd6 f6+ Kf8 f7 Kg7 Be6 Be7 Na3 b1B Bb6 Qf8 Bb2+ Bf6 Ba1 b2 Rh2 Qb4 Rg2 Nc6 Rg3 Rb8 a8Q Ba2 Qb7 b1B Qe7 Rh7 f8B+ Kh8 Nb5 Be5 Na3 Rf7 g7+ Kh7 Qf6 Qe4 Bb4 Qd4 Qe7 Nh6 g8N Na7 g6+ Kh8 g7+ Kh7 B6a5 Rf5 Bb6 Be4 Ng5+ Kg6 Qf3 Qc5 Nf6 Nb5 Qe3 Bh1 g8N Rb7 Ng4 e1Q+ Kh2 Qf1 N8f6 Qd3 Nd7 Qdd6 Nf7 Kh7 Bc4 Qg6 Kg1 Rc7 Be6 Rc6 Bac3 Rd6 Bb2 Rd3 Bd4 Rb3 Ba1 Rb2
2r1bN2/n1N3kB/1K2P1P1/2Qp1bb1/1n2q1R1/rP2R1qR/3bR3/3QQQ2 w - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 e5 fxe5 b4 h4 b3 axb3 Nh6 b4 Ng8 b5 Qf6 Qd3 Qe7 Qd1 Qd8 e4 g5 hxg5 f6 e6 Qc7 e5 Qd8 e7 Kf7 e6+ Kg7 Bf4 Kg6 Be5 fxe5 Kd2 d5 Kc3 h5 Kb4 a6 e8Q+ Kg7 g4 h4 c4 e4 b6 e3 Ka5 h3 c6 e2 c7 e1B+ Nc3 h2 c5 Qf6 b3 Qh6 b7 Ne7 c6 Ng6 Ne2 Bd7 c8R Nf4 g6 Bc5 c7 Qh3 g5 Rg8 Qf7+ Kh8 g7+ Kh7 Ra2 Nd3 Nf4 Be8 Re2 Bd2 Ng6 Nb4 Nb5 Be7 Kb6 N8c6 b8Q a5 Re3 a4 Bd3 a3 Qff1 Rf8 g8R a2 Qa7 a1Q Qa5 Ra7 Ra8 Qb1 c8Q Qc2 Nc7 Qg3 Qc5 Ra1 Ra2 Na7 Qfe1 Qc4 Qa6 Qe4 Bb1 Bd8 Qaf1 Bf6 Rb2 Ra3 Ra2 Bdc3 Rae2 Bd2 Rh8+ Kg7 Rh3 Bd8 Rg1 h1B Bd3 Rg8 Nf8 Bf3 Rgg2 Bg4 Bc2 Qef4 Bg6 Bf5 Bh7 Qe4 g6 Bg5 Na6 Qgf3 Rg4 Qg3 Nc7 Bf7 Nd7 Rc8 Nf8 Be8
4n2N/4Pr1q/B5b1/kq2n3/B1RK2RQ/1RpnQ1P1/1P1R1B1b/3Bnn2 w - - 0 1 legal: proof: c4 b5 g4 a5 a4 g5 axb5 d5 cxd5 Bd7 f4 Bc8 Nc3 Ra6 Ne4 Rc6 Ng3 Rc3 Nf5 Rg3 hxg3 Qd7 Ne3 Qd8 Ng2 e5 fxe5 Na6 Nf4 gxf4 Rh4 Nb8 Rh5 Na6 Rh1 Nb8 Kf2 Kd7 e4 h5 d4 c5 g5 Kc7 b6+ Kb7 g6 f5 e6 a4 d6 h4 d7 h3 e5 a3 d5 f3 Ke3 a2 d6 h2 g7 c4 Qd2 Ka6 b7 f2 Nh3 Qc7 d8R Bd7 Ng5 Rh7 Nf7 Nc6 b8R Nf6 g8B Be8 Nh8 Bg6 d7 Bc5+ Qd4 Qb7 Bd2 Ne8 Rc1 a1N Be1 Qc7 Rb4 Bb6 Rb8 Rg7 d8Q Qa7 Be2 Ka5 Bd1 c3 Rc2 Qe7 Rd2 Qh4 Kd3 f1Q+ Ke3 Qh7 Rb3 Ra7 Rc8 Rc7 Qg5 Rg7 e7 Bc5 Bc4 Rf7 e6 Ne5 Ba6 Qb5 Qf4 Nd6 Rc7 Ba7 Rc4 Bc5 Rf1 h1N Qh4 Bb6 Rf4 Nf2 Qc5 Nfd3 Rg4 f4+ Ke2 Nc2 e8B f3+ Kf1 Ba7 Qf2 Qb4 Ba4 Qb5 e7 Be3 Qe2 Bg1 Qf2 Nf4 Qe3 Ne8 Rd4 f2 Rd3 Ne6 Ke2 f1N Rd2 Nc5 Bf2 Ne1 Qe4 Nh2 Ke3 Nf1+ Kd4 Ncd3 Qe3 Bh2
3NQn2/1Q1nP1R1/1Q2qbBN/6P1/n1P1r1q1/k2p1b2/5n1N/NK2B1nQ w - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 g5 b4 e5 fxe5 Nf6 a4 Be7 axb5 Qa5 Ra3 Ng8 Rf3 Qd8 Rf4 Bf8 g4 gxf4 h4 a5 h5 Ra6 g5 Rg6 hxg6 Bd6 Rh2 Be7 Rh1 Bf8 Kd2 Ke7 e4 f5 c4 h5 Kc2 d5 e6 h4 b6 d4 g7 f3 e5 f2 b7 h3 b5 h2 b6 f4 c6 d3+ Kb2 f3 c7 a4 Na3 Qd5 Nb5 a3+ Ka1 a2 Kb2 a1N Na3 Nf6 Be2 f1N Kb1 f2 Bh5 Nb3 Nf3 Nh7 Bd2 Ng3 Be1 f1Q Bg6 Ne2 Nc2 Nd7 b8N Ng1 b7 Qg2 Na1 Nbc5 Qc1 Na4 Qd1 Ndb6 Qc1 Bd7 c8Q Bc6 Qc7+ Nd7 Qb6 Qg4 Qd1 Ne2 Rf1 h1N Nh2 Ng1 Rf7+ Ke8 g8N Be7 Qf3 Bf6 e7 Qde6 Nh6 Nf2 Qh1 Bf3 Nc6 Nhf8 Nd8 Rh7 b8Q Rh8 Ng8 Rh4 Qa8 Qh5 Qaa6 Re4 Nh6 Qhg4 Qa8 Ndc5 Rg7+ Kd7 Qb3 Kc7 e8Q+ Ncd7 Qa6 Qc6 e6 Kd6 e7 Kc5 Qb8 Qce6 Qbb7 Bc3 Qbc6+ Kb4 Qcb6+ Ka3 Qab7 Bf6
1Q6/pR6/5R1q/1bRn2rQ/RP1Pr3/Kq1P1N1Q/3B2nn/1N1k1nQn w - - 0 1 legal: proof: e4 d5 g4 b5 f4 f5 exf5 h5 a4 d4 axb5 d3 cxd3 e6 d4 Ba3 g5 Bf8 Be2 Be7 Bg4 Bf6 gxf6 hxg4 h4 Kd7 b4 Kd6 f7 Kd5 f8R Kc4 f6 Kd3 f7 c5 f5 g5 b6 c4 f6 g3 b7 e5 h5 g4 h6 c3 h7 e4 Ra6 e3 Ra4 g2 Rh3 g3 Rh6 e2 Nf3 g1N Rh5 c2 Rha5 g2 Ng5 Nc6 b8R Nge7 Ne4 Qd5 Ra3+ Qb3 Rh5 Bd7 Rb6 Re8 Rc5 Nf5 Rb7 Nh3 Ng5 g1N Ra4 Rg8 h8Q Re4 Qh5 Nf2 Nf3 Ng3 Qh3 Rg5 Qh5 Nf1 Qh3 Re3 Qh5 Ke4 d3+ Kf4 Bd2 c1Q Rc8 Be8 f8Q Ne7 f7 Bb5 Qfh6 Nh1 R8c6 Nd5 f8Q+ Kg3 Rf6 Re4 Bc3 Qf4 Bd2 Qd6 Qfe8 Qf8 Qh7 Qh6 Qb8+ Kg2 Qf5 Nfe3 Ne5 Kg3 Bc3 Kg2 Kd2 e1N Kc1 Ngf3 Bd2 Kf2 Qfh3 N1g2 Qg1+ Ke2 Qhe8 Qd1+ Kb2 Nh2 Ka3 Nef1 Nf3 Qc2 Qg6 Kd1 Qgh5 Qb3+
n5rN/q2b2BN/q1NP1N2/4bQ1p/1R1Q1P1P/4b3/rQRQ1b2/K2q3k w - - 0 1 illegal: No possible last move
n1Q1n1Kn/1NRq1Np1/P1B2k2/P6B/Qb1b4/B2Q2P1/3Q1B1q/q1r4n w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 Kd7 e4 b5 b4 h5 bxa5 h4 d6 Ke6 d5+ Kf6 d7 Ke5 d6 Rh5 Qc2 Ra6 Na3 Ke6 Bb2 Rh8 f3 h3 g3 Bb7 Bc3 Bd5 Bb2 Rb6 Rd1 Rb7 Rd4 Kf6 Rd2+ e5 Rg2 hxg2 Nc4 Kg6 a4 Rb6 Na3 Rc6 exd5+ e4 Qe2 e3 Qf2 Rc4 Qc2+ Re4 fxe4 Qe8 Qb1 Qe7 Qc2 Qd8 Ke2 c5 Kd3 f5 h4 f4 h5+ Kf7 a6 b4 Kc4 e2 h6 e1Q a5 f3 h7 b3 e5 f2 Nh3 g1N Bg2 f1N Nb5 Qc1 Ba3 b2 e6+ Kf6 e7 b1Q e8B Qcb2 Qa4 Ne7 Ng5 Nh2 Bh5 Q1a1 Nf7 Nh3 Rc1 Ng4 Bf3 Qc7 d8B Qd7 Bb6 Ng6 Ba7 Rg8 h8Q Nhf2 Qh6 Nh1 Qd2 Nh8 Rc2 Qe6 d7 Bd6 Bb6 Rc8 d8Q+ Be7 Qd3 Qd7 d6 Rc7 Kd5 c4 Qf8 c3 Qc8 Bf8 Rc1 Qh2 Bf2 c2 Bg2 Qe8 d7 Bb4 d8Q+ Qe7 Rf1 c1B Nbd6 Bb2 Rc1 Bd4 Nb7 Nd7 Rc2 Nf8 Qd2 Ne6 Qdd7 Rc4 Qdb5 Rc6 Qbd3 Qe8 Rc1 Rc5+ Kd6 Nc7 Bc6 Na8 Rc4 Qe5+ Kd7 Qf5+ Ke8 Qd5 Kf8 Qd7 Rc3 Rc4+ Kg8 Rc5 Rb3 Rc1 Rc3 Nh6+ Kh7 Nf5 Kg8 Nd6 Bb5 Ba7 Rc7 Bd4 Bc6 Ne8
4B1Nn/2pn1q2/2R1N1r1/Q2P1q1Q/2qR2qK/RrNP1P2/4r2R/4kb1N w - - 0 1 legal: proof: g4 d5 c4 b5 cxd5 f5 gxf5 b4 b3 e6 e3 h6 Bb2 Bb7 Bf6 Ba6 Bg5 hxg5 a3 Bc5 axb4 Bd6 b5 Bf4 exf4 Bc8 h4 Kd7 b6 Kd6 f6 Kc5 f7 Kd4 f8Q a5 h5 e5 h6 g4 f5 g5 h7 g3 b4 g2 b7 g4 b5 e4 b6 e3 f6 e2 f7 Kd3 Rh4 a4 Nh3 g1Q Qc5 a3 f8N g3 Nc3 a2 Qa5 g2 Ne6 Nd7 b8R Ra6 b7 Qf8 f3 Qh2 Kf2 Ne7 Rc1 a1Q Ra8 Rd6 b8N Qf5 Nc6 Ng6 Ne7 Qhf4 Ng8 Qc4 Kg3 Ba6 Qe1 Qb2 Qf2 g1Q+ Qg2 Qgd4 Qh2 Qg7 Ra7 Qgf7 Rf4 Ne7 Kh4 Qbb4 Qh1 Bb5 Ra6 Rc6 Ra1 Kc2 Ra3 e1R Nf2 Re2 Rd4 Rd6 Rc6 Ng6+ Kg3 Kc1 Qh5 Qa4 Nh1 Qab4 Nf6 Rb8 Ng8 Nh8 Kh4 Ba6 Bh3 Qa4 Bg4 Rb3 Bh3 Bc8 d3 Kd2 Bg4 Ke1 Qh6 Qg7 Bh5 Qgf8 Be8 Q8f7 Qh5 Qab4 Ng5 Rg6 Ne6 Qf4+ Kh3 Qcc5 Re4 Nf8 Qh6 Qg1 Qg5 Qc4 Rd4 Qe5 Qg4 Bd7 Ng5 Be6 Kh4 Nd7 Kh5 Qgg3 Qh4 Bh3 Qg4 Qef4 Ne6 Bf1 Qh3 Qe7 Qh4 Nf7 h8R Qff6 Rh6 Nh8 Qg5 Qef7 Rh7 Qd6 Kg4 Qde5 Rh2 Qg3+ Kh5 Qg2 Kh4 Qf5 Qh5 Qgg4+
3R3b/1Nk2P2/2B1Bp1r/4n1Qn/1B1Q4/nn5N/Pn1K1Pqn/NBN3r1 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 a5 b4 Bg4 bxa5 b4 e5 b3 e6 b2 h3 Ra6 hxg4 Ra7 g5 Ra8 exf7+ Kd7 Rh6 Qc8 Re6 Qd8 Rf6 gxf6 Na3 b1N Bc4 Ra6 Nh3 Re6+ Qe2 Kc8 Kf1 Bh6 Bb2 Ra6 Bb5 Nc3 Re1 Ra8 Bc1 Nb1 Qd1 Bf8 Bd3 Nc3 Nb1 Na4 Ke2 Kd7 Rh1 Nc5 Ke1 Nb3 Ng1 Na1 Bb5+ Kc8 Bf1 Kd7 d4 h5 g4 e5 a6 c5 d6 h4 d5 c4 g6 e4 g5 h3 a7 e3 g7 c3 g6 h2 Bc4 c2 Nh3 e2 Nd2 Qc8 Nb3 Rh6 Qd4 Qc5 Kd2 e1N Ba3 c1N Bb4 Nac2 Na1 Ned3 Rd1 Ne7 g8B h1N g7 Na3 Bh7 Qb6 g8Q Ng3 Qg5 Nb2 Bb1 Nec6 Bb3 Kd8 d7 Kc7 d8N Bg7 Nb7 Ne5 Nc5 Qc6 Nd3 Bh8 Bc4 Nh5 d6+ Kb7 d7 Ng4 d8N+ Kc7 Nb7 Qg2 Bb3 Nc6 Be6 Rg8 a8B Rg7 Qge3 Nce5 Qg5 Ne2 Nc1 Nh2 Nc5 Rgg6 Bc6 Rg8 Nc1b3 Nc1 Nb7 Ncd3 Nc1 Nc5 Nf4 Rgg6 Nh3 Nb3+ Ke3 Qh1 Qf5 Nhf3 Qdd3 Rg3 Qg5 Rg1 Qc4 Rh7 Rd8 Rh6 Qd4 Nh2 Ke2 Qg2 Ke3 Na5 Kd2 Nb3+
2n3r1/1b2n2N/1R1P1KP1/Q1r3P1/QN1r1B1k/p4Q1b/1R4rb/R1Q1nR2 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f7+ Kd7 cxd3 Qe8 d4 Qd8 d5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Bg7 h4 Bb7 h5 Be5 f5 Bg7 f6 Bc8 Bd3 Bf8 Bf5+ gxf5 g5 Bh6 Kf2 Qf8 Ke2 Qg7 Ke1 Qg6 hxg6 Bf8 Ke2 h5 Kd3 e5 b4 c5 b6 a5 b7 c4+ Ke3 f4+ Ke4 a4 Kf5 e4 d4 h4 d6 h3 d5 f3 b5 c3 b6 h2 Na3 e3 Ne2 c2 Nf4 f2 Rf1 h1R Nh5 e2 Bf4 c1R Nc2 e1N Nb4 a3 Qa4+ Nc6 b8R Rg1 b7 Be7 f8Q Rc5 f7 Rg2 Qg7 Bf8 Qc3 Ne7+ Kf6 Rg8 Qc1 Raa5 Qad1 Na7 Qf3 Rc4 Qb3 Rac5 Qa4+ Kd8 d7 Rd4 Ke5 Bg7+ Nf6 Bf8 Nh7 Bg7+ Ke6 Be5 f8Q+ Kc7 Be3 Bh2 Kf6 Kd6 d8Q+ Bd7 Rg1 f1B Qda5 Ba6 Rf1 Nc8 Qf7 Bh3 Bd2 Bb5 Bf4+ Kd7 d6 Bc6 Qac2 Bf3 Qfb3 Be4 Qf3 Bd5 Ra8 Be4 b8R Bb7 Ra6 Rf8+ Kg7 Ke6 Qca4 Kf5 Rb6 Rh8 Qfc3 Kg4 Qf3+ Kh4 Kf6 Rg8 Nd5 Re2 Rb2 Bc6 R8b6 Rg2 Nb4 Bb7
2q2R2/PBr1QN1Q/2b1n2B/Bb3K1p/3r3p/nP1q3n/2P1k3/R2R1R1B w - - 0 1 illegal: No proof kernel
1rr4b/N1nQB3/QP4n1/BR3qKN/1B1p3P/Q2Q1P2/2b1pn2/3n2kB w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Nc6 dxc5 Nf6 a4 Nb8 Ra3 Ra6 Rb3 Ra7 axb5 Ra6 b6 Ra8 b5 Ng8 Rb4 axb4 Kd2 Kf7 Ke3 Kf6 Kf4 d5 h4 b3 c4 b2 b7 g6 b6 e6 f3 d4 h6 Qe8 h7 Ra2 c6 Ra5 c5 Na6 b8Q Qd7 c7 Ne7 c6 Bg7 Bd2 Rc5 Na3 b1N Nh3 Nc3 Qa8 g5+ Kg4 Ke5 f6 Ng6 f7 Rf8 Bg2 Bh8 Nf4 Rg8 Qc2 Nd1 f8B Qf7 Qd3 Qf5+ Kh5 g4+ Kh6 g3 Nb5 Bb7 c8Q Nc7 Qd7 Ba6 Be7 Rb8 Na7 Bb5 Rf1 Ba4 Ba5 Bc2 Bh1 g2 Nh5 g1N Bf8 Rc4 Bfb4 Nh3 Rg1 Nhf2 Rg5 Bf6 h8B Rc3 Ng3 Kf4 Kh5 Be5 Bf6 Rc4 Bd8 Bh8 Bde7 e5 Kh6 e4 Kh5 Ne6 c7 e3 c8Q e2 Qa6 Rcc8 Kh6 Nc7 Kh5 Qe6 Rb5 Qf7 Qc4 Ke3 Kg5 Nd3 Qb3 Kf2 Nh5 Kg1 Qe4 N3f2 Qa3 Qf8 Qed3 Qf5+
1Q4b1/2PK1B2/1B1n4/1N1br1B1/Npkp2q1/Q1P5/P1Rr1b1n/3NB1Nb w - - 0 1 legal: proof: e4 e5 b4 c5 h4 a5 bxa5 f5 exf5 g5 hxg5 c4 Na3 c3 dxc3 Bc5 c4 Be7 c5 Bf8 Rb1 Qf6 Rb4 Qd8 Rd4 exd4 Kd2 Kf7 Kd3 d5 g4 h5 f4 b5 g6+ Kf6 c6 h4 g7 h3 c7 h2 a6 Qd6 g5+ Kf7 f6 Ke6 f7 Qc6 f5+ Kd6 f6 Kc5 a7 Qd7 g6 Bb7 Bg5 Qd6 Qc1 Nh6 g8N Bc6 g7 Na6 Ne7 Qf4 g8Q Qh4 Nf5 Rd8 a8N Rb8 Ne3 Qg4 Nb6 Bg7 Nd1 Rd8 f8B+ Rd6 f7 b4 c3 Be5 Nb5 Bg3 Bfe7 Bf2 Qb8 Re8 Bd8 Re5 f8B Bb7 Qa3 Ba8 Kc2 d3+ Kb3 d2 Ka4 Bc6 Bc4 Ba8 Nb2 d1B+ Bb3 Bc2 Nd1 Bh7 Bd2 Bb7 B8g5 Bg8 Be1 Ba8 Bc2 Bb7 Bg6 Ba8 Ka5 Bc6 Na4+ Kc4 Bf7 Nc5 Kb6 Ne4+ Nd4 Rd8 Bc5 Nd6 Nb5 Bb7 Ne2 Rd7 Rg1 h1B Rg2 Qe4 Ng1 Ng4 Bd4 Nh2 Bc5 Qg4 Bce3 Bc8 Kc6 Rd8 Bb6 Be6 Ba5 d4 Bb6 Rf8 Bh5 Rff5 Bf7 Bd5+ Kd7 Re2 Rg3 Rb2 Rd3 Re2 Rd2 Ree5 Rc2 Re2 Bg6 Rd2 Bf7 Re5+
r2b2Nb/2p2Rn1/P1nr4/4B3/kn4RR/3pP1KQ/2R1Q1QP/n1NQq3 w - - 0 1 legal: proof: c4 a5 b4 d5 bxa5 h5 cxd5 h4 d6 e6 d7+ Ke7 g3 Kd6 gxh4 Ke7 h5 Ra6 Nc3 Ra7 Nb1 Ra8 d4 Kd6 d5 b6 f3 Kc5 d6 Bb7 Bh3 Bd5 Bf5 Kb5 Be4 Bb7 Bd5 Bc6 Bb3 Be4 fxe4 Kc6 Bd5+ exd5 Kf2 Kb5 a4+ Kb4 h6 f5 h7 g5 e5 d4 e6 b5 e7 g4 e8Q f4 a6 d3 a7 f3 a5 Ne7 a6 Nec6 Bb2 Qe7 Kg3 f2 d8R Bh6 d7 Bg5 Be5 f1N+ Kf2 Ng3 Nd2 Bh4 Ne4 Nf5+ Kg2 g3 Nf6 Bg5 Rc1 Ng7 Rc2 Ka4 Ng8 b4 Qh5 b3 Rf8 b2 d8R b1N Rf7 Bh4 Rd4+ Nb4 Rdc4 Bf6 Rh4 Nc6 Kf3 g2 Kg3 Rd8 a8Q Rd6 Qb7 Nd2 e3 Nb3 Qa8 Na1 Ne2 g1B Nc1 Qf8 Qhe2 Bf2+ Kg2 Be1 Rg1 Bc3 Kg3 Bd8 Qb7 Nd4 Qbg2 Ndc6 Rgf1 Qe7 R1f4 Qf6 Rfg4 Qf1 Nf6 Re8 h8Q Bb2 Ng8 Qe1+ Kf3 Be7 Qh7 Ra8 Qh5 Bd8 Kf4 Qd2 Kg3 Qe1+ Kh3 Qf2 Bg3 Nb8 Qhd5 Ne8 Qdf3 Bh8 Be5 Qg1 Kg3 Nc6 Kf4 Qh1 Qfh3 Ng7 Kg3 Qe1+
2B4R/pQN2Bk1/PPp4n/6bn/P2Kq1QN/q2B2b1/q4Q2/1rB1n2Q w - - 0 1 legal: proof: h4 b5 e4 f5 exf5 g5 hxg5 Na6 a4 Rb8 a5 Rb6 b3 Rc6 Ra4 Rc4 Rb4 Rg4 Rc4 d6 Rc5 Ra4 Rc4 Bd7 bxa4 b4 Rc5 dxc5 c4 Bb5 cxb5 c4 Ke2 Kf7 Ke3 e5 g4 h5 d4 b3 f4 c6 b6 b2 f6 h4 f5 c3 g6+ Ke8 f7+ Ke7 d5 Kf6 d6 e4 g7 c2 g5+ Ke5 d7 h3 g6 Kf6 Nf3 h2 Nh4 Qc7 d8Q+ Be7 f8Q+ Kg5 f6 Kh6 f7 Bg5+ Kd4 e3 Qa8 e2 Nc3 b1Q Qfc8 e1N f8Q Nb4 a6 Qa2 Qcg4 Qg3 Qf2 Nbd3 Nd5 Nf4 Qb7 Qga3 Bd3 Nh5 Nc7 Rh7 Bd2 c1B Qdf3 Ngf6 g8B Kg7 Be6 Ng8 Bc8 Nh6 Be3 Bd2 Qd5 Bb4 Bc1 Bd6 Qdg2 Bg3 Q2e4 Kg8 Qeg2 Re7 g7 Re5 Qg2f3 Rb5 Qd1 Rb1 Qdf3 B5f4 Q3g2 Kf7 g8B+ Kf8 Bf7 Bg5 Rg1 Kg7 Qh1 Bd6 Rg3 Bf4 Re3 Bd6 Re8 Bg3 Qhf3 h1Q Rh8 Qg2 Qd5 Qf3 Qde4 Qf5 Qh1 Qe4+
1n1n4/2p3kr/4p1P1/1rBr4/3P3b/1qPn1BNn/NRBQ2QN/1BK4N w - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 exd5 a5 b4 Qd6 f4 Qg6 fxg5 Qf6 h4 Qc6 h5 Bf5 Ra2 Bg6 hxg6 Qd6 Rb2 Na6 axb5 Nb8 b6 Qd7 b5 Qd8 Rb4 axb4 d4 f5 Kd2 h5 b7 h4 d6 b3 g7 Kf7 b6 e6 d7 b2 c3 f4 g6+ Kf6 g5+ Kf5 Nh3 f3 Rh2 f2 Bg2 f1R Nf2 h3 Bf3 Be7 Nh1 Na6 b8Q Nc5 b7 Ra1 Qa8 Rh4 b8N Qe8 d8N Ra3 Nf7 Qb5 Na6 Qb3 Ne5 Rh7 Nb4 Nd3 Ng4 Nh6 g8B Ra5 g7 Kg6 Na2 Rd5 Rf2 Rg1 Nh2 Nf7 Qc6 Nd8 Qb7 Rh6 Bh7+ Kf7 g8B+ Kg7 Bhe4 Rh7 Bf7 Rg4 Bfg6 Rf4 Qc2 Rff5 Kd1 Bf6 Nd2 b1N Ndf1 Nd2 Nfg3 Nc4 Ba3 Nb6 Bc5 Nd7 Kd2 Nb8 Qb2 Nc1 Bc2 Nd3 Kd1 Rfe5 Bf5 Be7 g6 Bh4 Qc1 Kf6 Qd2 Kg7 Ng4 h2 Qc6 Nf4 Kc1 Nh3 Bb1 Qa4 Bfc2 Qb3 Qb5 Rg5 Qf1 Rge5 Re2 Reh5 Qg2 Rhf5 Nhf2 h1N Nh2 Rfh5 Nfe4 N1f2 Nh1 Rhe5 Neg3 Nd3+ Kd1 Qb2 Ba3 Ndc6 Qe3 Qb6 Ba4 Qb5 Rb2 Rd8 Bac2 Qb3 Qed2 Rb5 Be7 Rdd5 Bc5 Nde5 Kc1 Nd8 Qd1 Rh5 Qe1 Rh7 Qed2 Nd3+
2B3rq/R2q2k1/1B1P1rbR/3Q1q2/P1p1NQ2/2K1nbq1/RRPp1Q2/3Q4 w - - 0 1 legal: proof: f4 h5 b4 g5 fxg5 a5 bxa5 Ra7 Nf3 Ra6 Ng1 Ra8 g4 Bh6 g6 Ra7 g5 Kf8 Nc3 Ra8 Nd5 Ke8 Ne3 Bf8 Ng4 hxg4 d3 c5 Bf4 c4 Bd2 Bg7 Bc1 Bb2 d4 Ba3 Nf3 Bd6 Ng1 Bc5 dxc5 d5 e3 Nc6 e4 d4 Ne2 Nb4 Ng1 Nd5 exd5 Rh6 Nh3 Rh4 Ng1 Rh8 Kd2 Kf8 h4 f5 a4 b5 a6 e5 h5 e4 a7 f4 c6 g3 d6 b4 c7 d3 h6 f3 h7 f2 Rh4 b3 Ne2 b2 Ra2 b1Q Nc3 g2 Rh6 g1Q Bh3 Bb7 c8Q f1B Qf5+ Nf6 Qf4 Qb5 Bc8 Rg8 h8R Qd4 g7+ Kf7 Ba3 Qf5 Bc5 Ng4 Bb6 Qd7 g6+ Kf6 R8h7 Ne3 Qf2 Rf8 g8Q Be2 Qd5 Bf3 Rh8 Kg7 Qe5+ Rf6 Qf4 Rb8 a8R Bd5 Re8 Bf7 Ra7 Ra8 Re5 Rb8 Rb5 Be8 Kc1 d2+ Kb2 Bf7 Ba6 Rg8 Bc8 Ng2 Rb3 e3 Rb4 e2 Rb3 Qdd3 Ne4 e1Q Rb5 Qdf1 Kc3 Ne3 Rbb2 Q1h3 Q2h2 Qeg3 Qf2 Kf8 g7+ Ke8 Rg6 Qh8 Rh6 Bg6 Ra6 Kf7 Ra7 Rf8 g8Q+ Ke8 Qd5 Rg8 Qh4 Kf8 Qf4 Kg7
r2q3N/p1BQ2P1/1RB1N1P1/k1nKBbP1/1b2p1q1/r3N3/q3QB2/Nq6 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 Bb7 exd5 Nc6 b4 Nb8 b6 Ba6 b5 Bc8 h4 Nf6 g4 Ne4 g6 Nd7 g5 Nb8 h5 Qc7 Ra4 Nf6 Rb4 cxb4 Bb2 Nbd7 Bc1 Ne5 g7 Ng6 hxg6 Ng8 Qh5 Qd7 Qd1 Qd8 Ke2 Kd7 Kf3 f5 c4 e5 d4 h5 b7 Kc7 b8B+ Kb6 d6 h4 c5+ Ka5 c6 f4 Ke4 h3 d5 f3 b6 b3 b7 b2 c7 h2 d7 f2 d6 Rh3 Kd5 e4 Nd2 b1Q Ngf3 Nh6 Nd4 Qa1 Nf5 Qdf6 d8N Qab2 d7 Qe7 Bb5 f1Q Bc6 Qbb4 Nb3+ Ka6 Be3 Qg2 Ne6 Qf7 d8N Qb6 Na1 Bb4 Qe2+ Ka5 Bf2 Qg4 Ne3 Nf5 Rb1 h1Q Rb3 Qg8 Nf7 Nd6 Nh8 Qb1 Rb2 Bd7 c8Q Qgd8 Bc7 Qa2+ Rb3 Rf3 b8B Nb7 Be5 Nc5 Bbc7 Rh3 Nf4 Bf5+ Qd7 Qb1 Ne6 Qg8 Nec2 Rf3 Rb2 Ra3 Ne3 Qf7 Bcd6 Qd8 Rb3 Be1 Rb6 Bb4 Bb8 Qff6 Bec7 Qfb2 Be5 Q2c2 Bbc7 Qca2+
krqq3r/6Rq/3NP1nQ/PR2N2N/1N4Qq/1RpK1pn1/1RP5/q1B5 w - - 0 1 legal: proof: d4 e5 dxe5 a5 f4 Be7 b4 Bc5 bxa5 Bf8 e6 g6 e3 Ke7 e4 Kf6 e7 Ke6 e5 Bg7 Bd3 Kd5 e6 Kc5 Bf1 Kc6 g3 f5 Ba3 b6 Bc1 Be5 Bh3 Ba6 Bg4 Bd3 fxe5 f4 Bh3 Bf5 g4 h6 gxf5 h5 Bg4 hxg4 Kd2 Kb7 e8R c5 h4 d5 a4 b5 f6 c4 h5 b4 h6 g5 f7 g3 f8N b3 e7 g2 h7 d4 e6 d3 Rh5 g4 Nd7 b2 Ne2 g1Q Ne5 g3 Ra3 g2 Ng3 Na6 Qg4 f3 Nc3 b1Q Nd5 Qa7 Nb4 g1Q Rb3 Nc5 a6+ Kb8 a5 Qc8 Rd8 Qa1 e8N Qh1 Rd7 Ne7 Nd6 Ng6 Rg7 Qh4 Rg5 Qe7 Nh5 c3+ Ke3 d2 a7+ Kc7 Rf5 Rb8 a8R Ne4 Kd3 Ng3 Ra6 Qed7 Rb6 d1Q+ Bd2 Qdh1 Bc1 Qhd8 Rg5 Qh4 Rf5 Rg8 h8Q Q7e7 Qh6 Rh8 Rg5 Qf7 Nd7 Qfg8 Rgb5 Qh7 Rb2 Rb7 Ne5+ Kb8 Na6+ Ka7 R5b3 Ka8 R6b5 Rb6 Nb4 Rb8
2Q1QR1K/2qR1P1n/1R2nb2/1b4k1/1N1p2p1/Q2P1B2/n1N1QP1p/2r3rR w - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 e5 axb5 f5 h4 g5 g4 e4 gxf5 e3 d3 g4 Bd2 Qg5 hxg5 Be7 Bh3 exd2+ Kf1 Bf6 Kg2 Bg7 Kh2 Nf6 Bf1 Bf8 Kg2 Ng8 Kg3 Kf7 Kh4 d5 Kh5 a5 e4 h6 c4 a4 g6+ Kf6 g7 d4 e5+ Ke7 Kg6 a3 f6+ Ke6 c6 h5 b6 h4 c7 h3 b7 h2 c5 a2 f7 Nc6 b8R Rh3 Nc3 Na7 c6 Ba3 Qe2 d1Q Nf3 Qb1 Rb6 Ba6 c8R Rg3 Kh7 Kf5 c7 Be7 e6 Bb5 Ne1 Kg5 Kh8 Bf6 e7 Qc1 e8Q Rg1 Nd5 Nc6 Bg2 Nd8 Bf3 Ne6 Nb4 Ra4 Rb1 a1N Nec2 Nb3 Ra8 Qf4 c8Q Ra1 Qc3 Nc1 Qa3 Qg3 Rd6 Na2 Rd7 Qc7 Rb3 Be7 Rc8 Nf6 g8Q+ Kh5 Rb8 Rac1 Qc8 Bd8 Qe8 Nh7 Rb6 Kh6 Rc3 Be7 Rc5 Bd8 Rg5 Be7 Rg8 Kh5 Rf8 Kg5 Qca8 Bd8 Qc8 Bf6+
b5rB/r4Q1N/1q1Bn1p1/nQ6/K1qB1R1Q/PN1p3Q/4PpP1/1Bb1k3 w - - 0 1 illegal: Other
1N3r2/q2K1kbN/1PB1R1Np/2n3Q1/5rRq/1p5N/1rpPRq1P/Q4R2 w - - 0 1 legal: proof: e4 d5 exd5 a5 b4 b5 f4 e5 Bb2 e4 Bf6 Nc6 c3 Ne5 fxe5 Ba6 bxa5 b4 c4 Bb5 cxb5 gxf6 Kf2 f5 Ke1 f4 Ke2 c5 a4 f5 g4 h6 a6 b3 b6 c4 a5 c3 g5 e3 Kd3 f3 Kc4 e2 Kb5 e1Q Kc6 f4 a7 f2 a6 f3 e6 c2 g6 Bc5 d6 Rb8 a8Q Nf6 d7+ Kf8 e7+ Kg8 e8R+ Kg7 a7 Rg8 Na3 Be7 Bg2 f1R Nc4 f2 Nh3 Nd5 Ra4 Nf4 Ne5 Nd5 Qa1 Ba3 Re6 Nc3 Rg4 Qh4 d8N Bf8 Kd7 Na4 Qd5 Ra8 Ndc6 Rh8 Nb8 Nc5+ Ke8 Kg8 g7 Nb7 Ng6 Qb1 Be4 Qa2 Kd7 Kf7 g8N Bg7 Nf6 Rf8 Qg5 Rb1 Bg2 f1Q Nh7 Rb2 Bc6 Qff2 Rf1 Qa3 Na6 Rab8 a8R Rbe8 Re2 Re4 Re8 Rf4 Nb8 Qa7 R8e6 Nc5+
5r2/2pPB2R/Br1Q1p2/3qr3/NQ2qk1B/2P1R2P/1p1R3R/1nK1nB1r w - - 0 1 legal: proof: e4 d5 exd5 a5 f4 e5 b4 e4 bxa5 Bd6 Be2 Ra7 Bf1 Be5 fxe5 Ra8 g4 h5 g5 f6 g6 Bg4 Na3 Be6 Nc4 Bf7 gxf7+ Ke7 Ne3 Kd7 Ng4 hxg4 f8B b5 a4 g5 d4 e3 a6 e2 Kd2 e1R e6+ Ke8 a5 b4 d6 g3 e7 Kd7 e8R g4 d5 g2 a7 g3 a6 b3 Be7 Re6 Ne2 g1Q Ra2 g2 Nc3 Re4 Na4 Rhh4 h3 Rh5 Qe1 Rb4 Rh2 Qh1 Qh4 Rb7 Qb4 g1R Kd1 Nc6 Bg5 Ne5 Kc1 Qf3 Bh4 Rb6 Rb2 Rc8 a8B Qe4 a7 Nf3 Bb7 Ne1 a8R Re5 Bba6 Rh1 Rb8 Nh6 c3 Nf5 Rbc2 Nd4 Rcd2 Nb5 Rh8 Na3 Rh7 Qg8 Ra8 Qf7 Rb8 Rh8 Rg8 Qh5 Rg3 Rf8 Re3 Nb1 Bad3 Kc8 d7+ Kb7 d6 Kc6 d8Q Kd5 d7 Ke6 Qa8 Kf5 Ba6 Kf4 Qc6 Qf7 Qcc5 Qd5 Qd6 b2+
3RQRKn/N2R1p2/2Nr3R/1B4pp/1qrp1r2/4nPk1/2NNP1P1/n1Q5 w - - 1 2 illegal: Other
nb1kB3/p1R1RB2/3B2Bp/nK1Rpn2/P1pR2P1/2P5/Nb1r2p1/2QQ4 w - - 0 2 illegal: No proof kernel
1r6/p4B1B/3rQR2/PrP2P1B/1RR1n3/B1q3k1/1bnnQb2/q2b1RNK w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f6 g4 Ne7 Nd2 Ng8 Ne4 f5 gxf5 Ke7 Nf6 Kf7 Ng4 hxg4 Nf3 Ke7 Ng1 Ke8 e4 Kf7 h4 b5 c4 g5 f4 d5 Kf2 g3+ Kg2 g4 a4 b4 a5 d4 e6+ Kf6 h5 d3 c6 b3 h6 b2 c7 b1N e7 d2 e8B Na6 h7 Ba3 c5 Qd4 Bd3 Rb8 Qe2 d1R Bh5 Qc3 Rh4 Bb2 Kh1 Rb5 Bc2 Bb7 c8Q Nb4 Qc6+ Rd6 e5+ Ke7 e6 Kf6 e7 Nd2 Bd3 Nc2 e8B Bc8 Bef7 g2+ Kh2 Be6 Ra4 Bb3 Rb4 Nh6 Be4 Rhb8 h8R Ba4 Rf8 Ng8 Nh3 g1B+ Kh1 Bf2 Ng1 g3 Rg4 Ba1 Ba3 Bb2 Qe8 Nd4 Rh4 Bd1 Bb1 Nc2 Q8e6+ Kg7 Rc4 Nf6 Rb4 Nfe4 f6+ Kh6 Rg4 Ne3 Bd3 Nc2 Rc4 Ng5 Bh7 Nge4 f5 R8b7 Rf4 Kg5 Rb8 R7b6 Rf3 Kh4 Rb7 Be3 Rf1 Bf2 Rd7 Rb8 Rb4 Ra6 Rdd4 Rd6 Rdc4 Rd7 Be8 Rd6 f7 g2+ Kh2 Kg5 f8R Kf4 Rf6 Rd5 Nf3 Rd6 Bef7 g1Q+ Kh3 Qg4+ Kh2 Qg7 Kh1 Kg3 Ng1 Qb3 Qe1 Qa2 Qe2 Qa1 Rh6 Qe5 Rf6 Qc3
nRN5/3PqQ2/B2r2nn/2n1k3/R1r1p2n/Q4b2/1bQPP2R/1bKRQ1N1 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 h4 Kd7 b6 Kd6 h5 a5 h6 c5 b7 f5 b4 e5 b5 a4 b6 f4 h7 c4 Bh3 a3 Qc2 a2 Kd1 f3 Bf5 f2 Rh2 f1B Na3 g4 Rh6 c3 Qb3 g3 Rh4 g2 Qc4 c2+ Kc1 Qe7 Rd4 Na6 b8Q+ Nc7 b7 Ra6 Qb3 Nh6 g8R Bg7 Bd3 Bf5 Qc8 Na8 b8R Be4 Rb1 a1N Ra4 Rc6 Bb5 Rc4 Ba6 Bd3 Qh3 e4 Nb5+ Ke5 d6 Bf6 Rgc8 Rd8 g7 Rd7 g8Q Bh8 Kb2 c1N Qc2 Nab3 Na7 Nc5 Qf7 Bf6 h8Q Bg7 Qhf3 Bf6 Nh3 g1N Rg8 Bg7 Nc8 Bg2 Qe3 Nf3 Ng1 Bf6 Rg3 Nh4 Rh3 Bg7 Rh2 Bf3 Qf2 Bf6 Qhf8 Bh8 Qe1 Rd8 Qcd1 Bc2 Rba1 Bb1 Qc2 N1d3+ Ka3 Ba2 Rd1 Nf4 Kb2 Bb1 Kc1 Rd7 Bb7 Nfg6 Ba6 Rb7 d7 Rb6 Qd8 Rd6 Qa5 Bf6 Qb4 Bg5 Qa5 Be3 Qb4 Bd4 Qa3 Bb2+
2N3r1/R2Qp1b1/br4kP/N2r1rnn/4n1q1/2R1Rr2/1N2PP2/1Q2RKNB w - - 0 1 legal: proof: g4 f5 gxf5 d5 c4 b5 cxd5 b4 b3 h6 Bb2 Na6 Bf6 Nc5 Bg5 hxg5 a3 Nd7 axb4 Nb8 b5 Bb7 Nh3 Ba6 Ng1 Bc8 d4 Kf7 h4 c5 d6 a5 f6 a4 h5 c4 b4 c3 b6 g4 d7 g5 b5 c2 h6 c1R b7 a3 d5 g3 b6 g2 d6 g4 Nd2 a2 Nc4 g3 Nb2 Kg6 f7 Na6 b8R Rc5 b7 Rf5 Qb1 Bg7 f8R Nc5 Rf7 Qe8 d8N Ra5 d7 Nf6 Nc6 Qg8 d8Q Nce4 Na7 Nh5 Qd7 Rad5 Rh3 Rf3 Ra8 Rh7 b8N Ba6 Nbc6 Rff5 Nf3 g1R Na5 g2 Nc8 Rh8 Rf8 Qe6 Rd8 Rg8 Ra7 Rh1 Re8 g1N Bg2 Rh2 Kf1 Rh1 Rh2 Nh3+ Ng1 Nhg5 Rh3 Rh2 Rb3 Rh3 Bh1 Rhf3 Rc3 Rf7 Re3 Qg4 Rf8 R7f6 Rc3 Rfd6 Rf5 Rb6 Re5 Rf5 Qd3 Rf3 Re1 a1R Qc2 Rad1 Qb1 R1d3 Re6+ Rf6 Re5 Rh3 Re6 Rf3 Re5 R6f5 Re6+ Nef6 Ree3 Nfe4
1R1B2k1/nP4q1/4r1r1/BRbNQ1Kp/1qR4P/1qn2bBQ/3PBR2/1b4q1 w - - 0 1 illegal: No possible last move, all moves rejected
5NQ1/RK5n/Q1RPb2b/3r1q2/q3bpr1/BR1nPP2/2R1n2Q/1n1kNQ2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Nc3 Kf5 Nb1 Ke6 Kd2 Kf5 Ke3 Kg4 Kd4 f5 Kc5 a5 b4 g5 h4 f4 b6 d4 b7 d3 b5 d2 b6 a4 h6 a3 h7 a2 h5 Ra5+ Kc4 c5 Kd5 Nc6 b8R Nd4 h6 Nf3 Kc6 c4 e3 c3 b7 c2 Ba3 c1N Nh3 Nf6 Qf1 d1B Nd2 Nd3 Rh2 Rg8 h8Q Bc2 h7 Bh6 Qg7 Rd5 h8Q Qf8 d8Q Nh7 Qa5 Qf6 Qa6 Be6 Rc8 Qf5 b8R Bb1 Rb7 Bc2 Rab1 a1Q R1b3 Qd4 Rf7 Qa4+ Kb7 Bb1 Rc6 Bc2 Ne4 Nd2 Nf6+ Kf3 Nd7 g4 Nf8 g3 Qg6 g2 Ng1+ Ke4 Rg7 Nb1 Nf3 g1N Ne1 Ne2 Rgc7 Rg7 Qh5 Rg5 Qg8 Rg4 Rg2 Rh4 Rgg7 Rg4 Qh2 Nb4 Ng2 Kf3 Rc8 Be4 Rc2 Rd3+ R8c6 Rd5 Rf7 Nd3 Rfc7 Rg6 Ne1+ Kg4 Qhg2+ Ng3 Ka7 Rg5 Qh2 Rg7 Ng2 Kf3 Kb8 Rg6 Ra7 Rg4 Kb7 Nd2 Qfg1 Ke2 Ne1 Kd1 f3 Ne2 Qf1 Nb1
5k2/3rpbNq/N1q3QQ/1QR1PN2/q3NPR1/1r2bBKQ/1nb3P1/1b2n3 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 h4 c5 hxg5 f4 d4 Ra6 dxc5 Ra8 Be3 fxe3 a4 b5 c4 d5 f4 h5 g6 b4 g7 h4 c6 e2 Kf2 d4 a6 h3 a7 h2 c5 d3 e5 d2 a5 b3 a6 b2 c7 Qd7 c6 Nh6 g8Q Qd6 Nf3 Be6 c8N Nf7 c7 Ng5 Nd4 Bf7 Qb3 d1B Ra5 Nf3 Rc5 Bc2 Kg3 Qc6 Ne6 Ne1 Qg6 Nd7 Qb5 Nb6 Nc3 b1B Ne4 Bh6 Ng7+ Kf8 Ncd6 Rb8 a8N Nc4 a7 Bg5 Ndf5 Nb2 Qh6 Rd8 c8Q Bf6 Qe6 Rd7 Nc7 Bg5 Na6 Bh4+ Kh3 Rg8 Qeg6 Bf2 Kg4 Be3 a8Q+ Be8 Qab7 Bf7 Kg3 Rh8 Qd3 Qa4 Qbb5 Rh7 Rg1 h1Q Qc3 Qh5 Rh1 Rh8 Rh4 Rg8 Qg4 Qg6 Qcd3 Qc6 Qh3 Rh8 Qh5 Rh6 Rg4 Rhd6 Qh6 Rd4 Qg6 Rb4 Qgh6 Rb3 Qdd6 Nf3 Qdg6 e1Q+ Nf2 Qc3 Be2 Ne1 Bf3 Qd3 Ne4 Qdd6 Qgg5 Qg6 Qgh5 Qh7 Q5g5 Qh8 Qgg6 Qh7
3b1n2/bbN2bk1/5nP1/Kr2n2Q/p1rP1R2/P1Q2Nn1/1B2Q3/1NQ1q1RN w - - 0 1 legal: proof: e4 d5 exd5 c5 f4 g5 b4 Qa5 bxc5 Qd8 g4 h5 Be2 Nc6 fxg5 Bg7 g6 Bf8 g5 Nb8 Bg4 hxg4 c4 a5 h4 b5 g7 f5 a3 Kf7 d6 e5 h5 a4 d7 b4 c6 g3 h6 e4 h7 e3 c7 g2 c5 e2 c6 f4 Bb2 f3 Rh4 b3 Rf4+ Nf6 g8N Ra5 g6+ Kg7 Nh6 Be7 Ng4 Qe8 d8N Nd7 Nf2 Nf8 Nh1 Bb7 c8Q Rb5 c7 Rg8 d3 f2+ Kd2 e1N Kc3 f1N Nf3 g1B Qe2 Ba7 d4 Nd3 Kc4 Ng3 Ne6+ Kh6 Kc3 Bd8 Kc4 Ne5+ Kc3 Rc5+ Kb4 Rc4+ Ka5 Rg7 h8Q+ Rh7 Nbd2 Qe7 Rg1 Qe8 Ba1 b2 Nb1 Qe7 Nc3 b1B Bb2 B1e4 Nb1 Bbd5 Ng7 Bf7 Ne8 Bb7 Qh3+ Nfh5 Qhf1 Nf6 Qc1 Qe6 Qc3 Qh3 Qc1 Qf1 Qc3 Qd1 Qc1 Qe1+ Qc3 Be7 c8Q Bd8+ Nc7 N8d7 Qe8 Nf8 Qb5 Kg7 Qc5 Rh5 Qf5 Rh2 Qh5 Rg2 Qe3 Rc2 Qe2 Rd2 Qc1 Rd3+ Qb4 Rb3 Qbc3 Rb5+
QQ2QrR1/2n3p1/6b1/3B1k2/1Nbn1N2/Pr1P2Pn/2NK1bR1/1bqn2QN w - - 0 1 illegal: No extended proof kernel
1b1qNrrQ/3b4/1b1Q1p2/k3N1P1/2B1b3/n2r1Q1K/r1n1PPBB/5QRB w - - 0 1 legal: proof: d4 b5 h4 c5 dxc5 e5 b4 g5 hxg5 Ba6 a4 Bg7 axb5 Bc8 Ra6 Bh6 Rd6 Bf8 Rd4 exd4 g4 d5 c4 Kd7 b6 Kc6 g6 h5 g5 a5 b7 f6 g7 h4 Ba3 d3 Nf3 a4 Rg1 d4 Nbd2 h3 Bg2 h2 Kf1 h1B Ne4 d2 Nd6 d3 Ne8 Ne7 g8B Na6 b8Q Ng6 Qg3 Ne5 b5+ Kb7 b6 Bd7 Bf7 Nb4 c6+ Ka6 b7 Rg8 b8Q Nc2 c5 Nc4 c7 Ka5 c8B Bd6 c6 Be5 Qbb1 Bb8 Bd6 a3 c7 a2 Bb7 a1B c8Q N4a3 Ne5 Bd4 Bc4 Bb6 Qh3 Rf8 Qh8 Rg8 Qc6 Ra6 Bc7 Ra7 Qb3 Ra6 Qd6 Rf8 Bh3 Be4 Bg2 Ra7 Bf3 Ra6 Kg2 Ra8 Qf1 d1R Kg3 d2 Bg2 Ra1 Qf3 d1R Bh1 Ra2 Kg2 Ba4 Kh3 Bd7+ Qf5 Bd3 Bbg2 Be4 Qg4 Ba4 Qgh5 Rd3+ Qf3 Bd7+ Ng4 Ra7 Qd4 Bc8 Bh2 Rg7 Qd7 Rgg8 Ne5 Bcb7 Qe6 Bbc6 Qd6 Bd7+
Q2BB1r1/2n2BBb/1r3n1P/KQp4R/1N1pPR2/1n2Qq2/QrP3k1/b5q1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 g4 h6 g6 Ba3 Nc3 Bc5 Ne4 Bf8 g5 h5 Nf2 Ba6 Ng4 hxg4 Bh3 Bb7 Bf1 Bc8 Kd2 Ke7 Kc3 Ke6 b4 Kf5 e4+ Ke6 h4 d5 g7 a5 g6 f5 b6 c6 b5 g3 b7 a4 h5 f4 b6 f3 h6 f2 Nh3 a3 Qd2 a2 Qe3 g2 Nf4+ Kd7 e6+ Kd6 Kb4 Ke5+ e7 g1Q Rh5+ Bf5 Bc4 Na6+ Ka5 f1R e8B c5 b8B+ Nc7+ Ba7 Qe7 b7 Nf6 g8Q Rb8 g7 Qf7 Bb6 Rd1 Rb1 a1N Bb2+ Rd4 Rf1 Nb3+ Ka4 Be7 Qf8 Rg8 Nd3+ Ke6 Ba5 Bh7 Nb4 Bd6 Rf4 Be5 Bb6 Rd1 Ba1 Rb1 Bd4 Rb2 Ba5 Rd8 b8Q Rd6 Qb5 Rb6 Bc3 Rh8 g8Q Bd4 Qg2 Rg8 Qf1 Be5 Qa1 Bd4 Qa2 Be5 Bc6 Bd4 Qa8 Kd6 Rh2 Ke5 Be8 Qh5 Be2 Qh3 B2h5 Qf3 Bhf7 Rb1 Be1 Ba1 Bh4 d4 Bg5 Ng4 Rh5 Rb2 Be7+ Rg5 Bf8 Nf6 Rh2 Rg8 Bg7 Rc6 Rh1 Rb6 Rh5+ Qg5 Qc1 Nd5 Qcf1 Rc6 Bd8 Nc7 Qfd3 Rd6 Rfh4 Rb6 Rh3 Kf4 R3h4+ Kg3 Rf4 Kf2 Qc3 Qg1 Qcd3 Nd2 Qe3+ Kg2 Ka5 Nb3+
5qRn/5b1p/pN4b1/3BQ1qP/2n1P2n/PKQQ1r1k/2Nq3N/2Qr1N1R w - - 1 2 legal: proof: e4 e5 f4 c5 fxe5 g5 b4 Bd6 e6 Bf4 bxc5 Be3 dxe3 Nh6 Bb2 Ng8 Be5 Qf6 Bc7 Qd8 Bf4 gxf4 Kd2 Ke7 Kc3 Kf6 g4 Kg5 e5 Kh4 e4 d5 c6 f5 a3 b5 g5 f3 e7 f2 e8Q d4+ Kb3 a6 c4 b4 e6 d3 e7 d2 c5 f4 c7 f3 g6 Nh6 g7 Bf5 c8N Nd7 g8Q Nf8 c6 Bg6 c7 Nf7 Bc4 f1Q Qg7 f2 Nf3+ Kh3 Bd5 Qb5 Qb2 f1N Qc3 Ne3 Nb6 Nc4 c8N Rg8 Qdc1 Nh8 Na7 Qb8 Nc6 d1Q+ Ka2 Qd8 Ncd4 Qd2+ Kb3 Qd6 Qc6 Rd8 e8Q Rg7 Qe5 Rf7 Nc2 Rf5 Nh4+ Rf3 Qd3 Qf6 Qcc7 Qc5 Qec3 Qfg5 Q7e5 Qd6 Nf5 Rd7 Ng3 Qb8 Nf1 Qbd8 Ka4 b3 Kb4 b2 Kb3 Qdg2 Nbd2 b1B Ng3 Qdf6 Ndf1 Q2d2 Rg1 Bh5 Rh1 Nfg6 Ra2 Qf8 Ra1 Kg2 h4 Rd6 Nh2 Kh3 Ngf1 Ba2+ Kb4 Ne7 Rb1 Bg6 h5 Nf5 Ka4 Nh4 Rb5 Rd8 Rc5 Rd6 Rc8 Bb3+ Kb4 Ba4 Rb8 Bae8 Kb3 Bef7 Bc6 Qg7 Rg8 Rd4 Bd5 Qf8 Qe3 Qf2 Qe2 Rd1 Qed3 Qfd2
2n4N/1KNNnQpb/2pPq1r1/8/1n1qb2b/N2Qr1P1/1Q4BP/QRB3k1 w - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 b5 f4 h5 fxe5 h4 a4 h3 axb5 Be7 g3 Bd6 Ra6 Be7 Rf6 Bc5 Rf2 Bf8 Rg2 hxg2 Kf2 Kd7 Kf3 a5 Ke4 f6 d4 a4 d6 Ke6 d7 a3 b6 a2 b7 a1N b5 Rh6 b6 Ra3 Nh3 g1Q Bg2 Qe7 d8Q Nc6 b8N Bb7 Nd7 Rd3 Na3 Rg6 e3 Ba8 b7 Nc2 b8Q N2b4 Qa4 Na7+ d5+ Kf7 Qd1 Qe6 Nf4 Be7 Qb7 Rb3 d6 Rc3 Qd3 f5+ Kd4 Qd1 e4 Nc8 Rg1 Rb3 Kc5 Bh4 Qg5 Nge7 Qf6+ Kg8 Qb6 Kh7 Re1 Kh6 Qf7 Rg4 Ng6+ Kh5 Nh8+ Rg6 Qba6 Kg4 Rg1 Qf6 e6 f4 e5 f3 Qa7 f2 Qb6 Ng8 e7 f1B e8Q Nge7 e6 Be4 Qa7 c6 Rh1 Nf5 e7 Qe6 Qf6 Qd2 Qef7 Qf4 e8N Nfe7 Nc7 Be2 Qda6 Re3 Qb2 B2d3 Re1 Bc2 Qd3 Qff6 Bf1 Kf3 Bg2+ Kf2 Qaa6 Na7 Kb6 Nac8+ Kb7 Qf4 Bd2 Qff6 Rb1 Qf4 Bc1 Kg1 Qac4 Qff6 Qca2 Qd4 Qaa1 Rg5 Qba2 Bh7 Q2b2 Rg6 Qa6 Bf5 Qd3 Be4
2BRbnB1/2kpP1pq/1rn2B1R/RQKPb2r/2R4N/1P6/r2Q2n1/B4n2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 Na3 c3 Nc4 Qb6 axb5 Qf6 b3 Qd8 Nb2 cxb2 Kf2 b1R Ke3 a5 Kd4 f5 c4 f4 h4 a4 e4 f3 e6 f2 e5 a3 h6 a2 h5 Na6 e7 Nb8 b6 Nc6+ Kc5 Rb8 d4 Na7 b7 Nf6 h7 Nc6 h6 Na5 Bb2 Ng8 Rh4 Rc1 Qd2 Ra8 b8B Bb7 Nf3 Kf7 e6+ Kf6 Bc7 Nc6 Be5+ Kf5 Be2 f1N Bf6 Qc7 Re4 Qh2 d5 Ba6 Bd3 Rb8 Bb1 Rc2 Rh4 Rb6 Rg4 Ne5 Re4 Ng6 Rh4 Rd6 e8R N8e7 Rd8 Nc6 Rg4 Be7 Bbc3 Nf8 Bce5 Rg8 h8R Qh5 h7 Bb5 Bh4 Bf6 e7 Re6 Bb2 Be5 Rd4 Rg6 Bf6 Qh2 Rh4 Rg5 Rh6 Rh5 Nh4+ Ke4 Kb6 Qh3 c5 Bd3 Bc3 Rb2 Bc2 Qf5 Rc1 a1N Bd4 Nb8 c6 Ra2 c7 Nc6 c8B Qh3 Bb1 Nc2 Ba1 Nce3 Kc5 Kf4 Bc2 Bg6 Bf5 Qh1 Be6 Be8 Rc4+ Qe4 Qe1 Ng2 Qa5 Ng6 Qb5 Rf8 Rg8 Rf7 h8Q Nf8 Rc3 Qd3 Qh7 Qc2 Qhd3 Qb1 Qe2 Qh7 Qd2+ Ke4 Bg5 Rf2 Bf6 Ra6 Rh8 Rb6 Bg8 Re2 Rc2 Rf2 Ra2 Re2 Ra5 Rf2 Qc3 Ra2 Qd2 Bg3 Ng6 Rg5 Rh1 Qh6 Rh4+ Kf5 Raa4 Rh5 Rhc4 Bc7 Nf4 Qg6 Rh6 Qh7 Ng6 Bb8 Ra5 Bc7 Rc3 Bf4 Nh4+ Ke4 Bg5 Ke5 Kc4 Bg3 Bf6+ Kd6 Rc1 Kc7 Kc5 Bf4 Rc4 Be5
1rqBk3/Q2b1r1p/n1p4P/7P/1PnQNN2/3rQ1KR/1NQq4/2b2rNB w - - 0 1 illegal: No proof kernel
2N1NQ2/1R1P4/2k1BBb1/2ppr1q1/qB1P1N1b/1P3B1N/Q5r1/1q1nKnq1 w - - 0 1 illegal: No possible last move
1N1r3q/BQ4B1/K2B4/3q2R1/q1p1PQRr/3bb2P/p1Pk4/n2BnqQQ w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 g4 h6 g6 Ba3 Nc3 Bc5 Ne4 Bf8 g5 h5 Nf2 Ba6 Ng4 hxg4 Bh3 Bb7 Bf1 Bc8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 b4 Ke4 e6 a5 g7 c5 e7 f5 e8Q+ Ne7 g8Q f4 e3 g3 g6 f3 b6 d5+ Kb5 f2 h3 g2 b7 a4 g7 a3 Qef7 c4 Bb2 a2 Qh7+ Nf5 g8Q d4 Be2 f1Q Nf3 g1Q Ne5 d3 Nd7 d2 Bg7 Nc6 b8B Na5 Bd6 Nb3 Nb8 Qg6 Qc7 Nh4 Rg1 Bf5 Rg5 Ng2 Qb1 Qh5 Bd1 Qhe8+ Kb6 Qdd7 b5 Ne1 Qh6 Qe5 Qb7+ Qd5 Qf6 Rh4 Qc1 Bg6 Qf2 Qc8 Qg1 Be7 Qf7 Qh8 Rb1 Na1 Qff2 Ng2 Qh1 Bf6 Qfg1 Be5 Rb3 Bf4 Ra3 Bf5 Ra7 Bh7 Ka6 Qc6+ b6 Bf5 Bg4 d1Q Be2 Qdd5 Bd1 Bg4 Qd2 Be2 Qc1 Kf3 e4 Be3 Rg4 Bf2 Qg5 Qd7 Qf6+ Ke3 Qe5 Kd2 Qf4+ Be3 Nc6 Kc1 Qc8 Qf3 b7 Bd3 b8B Q5f7 Kb5 Ne1 Ra5 Qg2 Qb7 Kd2 Ba7 Qf1 Ka6 Rd8 Rag5 Qd5 Nb8 Qa4#
3n2nb/2N1N1P1/4b1p1/k2N1BBB/q5B1/Rr3nPq/1Q4pP/1Q1K1nrN w - - 0 1 illegal: No proof kernel
3nK1NN/1nR1bpQ1/1B1QR1p1/6n1/k1bn1P1P/2r3P1/3r3q/1Rq2RQQ w - - 0 2 legal: proof: d4 c5 b4 b5 bxc5 h5 a4 e5 axb5 h4 dxe5 h3 g3 Rh5 Bg2 hxg2 Bb2 Rh3 Bc1 Rh8 Kd2 a5 Ke3 d5 Kf4 Kd7 Kf5 d4 c4 a4 f4 a3 e4 a2 h4 d3 e6+ Kc7 c6 Kb6 e5 Ka5 c7 d2 c5 Na6 b6 Nb4 c6 Bb7 c8Q Qd6 c7 Na6 e7 Rh6 e8R Nf6 e6 Nb8 e7 Kb5 Nc3+ Ka5 Nd5 Kb5 Rb1+ Ka5 Nf3 g1N Ne5 a1N Ng6 Ne4 Nf6 Nh3 Qg1 d1Q Ng8 Nc5 Be3 Nc6 Nh8 Ba6 b7 Ng5 b8Q Q6d2 Qcb7 Rd6 c8R Nc2 Rc7 Qh2 Qd8 Rd3 Qd6 g6+ Kf6 Rd8 Qb2 Nb7 Bb6+ Ka4 Qgc5 Ra8 Qbe5 Rd2 Qe4+ Bc4 Rf1 Qe1 Qg1 N2d4 Qeh1 Ra7 Rd8 Ra6 e8Q Qc1 Qee5 Ra8 Rdd7 Re8 Re7 Ndf3 Qb2 Ncd8 Re3 Re5 Qc3 Red5 Re6 R5d3 Qcd4 Rc3 Q4e5 Bh6 Ke7 Bf8+ Ke8 Nd4 Qg7 Be7
3QR2R/p1b1nQKn/2Bp1b2/pQ2P3/3Qb2r/PB3k1N/B2BnPr1/2q5 w - - 0 1 illegal: No possible last move, all moves rejected
Q1Nb1n2/nQ1r1p2/1B1q3p/BrPb2B1/1p4B1/k1N2R2/3P1P1r/1n1NK2N w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 h4 Bc8 hxg5 c5 b4 Kd7 b6 Nc6 b5 Nb8 Ra4 Ke8 Rb4 cxb4 g4 Kd7 c4 Kd6 b7 Kc5 g6 a5 b6 e5 g5 e4 g7 e3 g6 a4 d6 h6 d7 a3 Be2 a2 Bg4 a1R Nc3 R8a6 Rh3 Rh7 Nge2 Ra7 Bb2 Qg5 d8B Nc6 b8Q Bb7 Rf3 Be7 Qa8 R1a5 Ng3 Nf6 g8N Qf4 g7 Rb5 Nh1 Nd7 Nf6 Nf8 g8N Rg7 Nfd5 Qd6 Qe2 Rg5 Nd1 Rh5 Bf6 Rh2 Bg5 Bf6 Bc7 Bd8 Nge7 Kd4 Qd3+ Kc5 Qh7 Kd4 c5 Kc4 Qf5 Kb3 Nc8 Ka2 N5c3+ Ka3 Qb8 Ba8 Qd5 Rb7 Qe4 Na7 Qd5 Be7 Bd8 Rd7 b7 Bf6 Ba5 Be7 Qc7 Bd8 b8B Bb7 Kf1 Bc6 Qb7 e2+ Kg1 e1N Kf1 Nc2 Bbc7 Rb6 Qe4 Rb5 Bcb6 Bd5 Ke2 Kb3 Kf1 Na3 Ke1 Nb1 Qa8 Ka3 Qb7 Ba2 Qa8 Be6 Qeb7 Bd5
6B1/r3nKQn/1bQb3p/N1p1NqBP/3Q2R1/B1B1q3/p2Pb2P/1k1r3Q w - - 0 1 illegal: No proof kernel
B6R/B4qk1/b1pn1r2/r1P2Q2/4RPp1/p1B3KP/nqN1Qb1R/R5nB w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f6 g4 Ne7 Nc3 Ng8 Ne4 f5 gxf5 Kf7 Nf6 Ke7 Ng4 hxg4 Nf3 Kf7 Ng1 Ke8 e4 Kf7 b4 d5 f4 a5 Kf2 g5 c4 d4 h3 a4 b6 d3 b7 d2 e6+ Kg7 e7 a3 e8R Nd7 b8B Be7 c5 Ndf6 b5 Nh7 b6 Ba6 b7 Kf6 e5+ Kg7 e6 Ngf6 Ne2 Qd3 Bb2 Qb5 Bc3 Qb2 Nd4 Nd5 Qe2 d1Q Kg3 Nhf6 Ba7 Nb4 b8R Qdb3 Nc2 Rh6 Bg2 Na2 Rh2 Bd8 e7 Qf7 Bh1 Rg6 Kg2 g3 Rb4 g4 Re4 Rh6 Rh8 Rg6 e8B c6 Bd7 Rh6 Bc8 Ba5 Bb7 Bd8 Kg1 g2 Kf2 g1N Kg3 Ba5 Bb4 Ne8 f6+ Kg6 Bc3 Nd6 Be5 Bd2 Bd4 Be3 Bc3 Qg8 f7 Bf2+ Kg2 Qg7 f8Q Qf6 Qc8 Kg7 Qf5 Rg6 Bd2 Qf7 Bc3+ Bd4 Kg3 Rf6 Bb4 Rb8 Ba8 Rb5 Bd2 Ra5 Bc3 Bf2+
QqR1Q1N1/1Rn4B/N3rpRb/2Q2p2/rRp2PP1/2P1r1n1/q1k5/1b3KQ1 w - - 1 2 legal: proof: g4 e5 h4 b5 a4 e4 axb5 e3 dxe3 Nh6 e4 Qf6 e5 Qf5 Bg5 Ng8 Bf6 Qg5 hxg5 gxf6 e4 Ke7 f4 Ke6 b4 h5 c3 c5 b6 d5 g6 a5 b5 a4 b7 h4 g7 c4 b6 h3 Bd3 h2 Na3 d4 Rb1 Ne7 g8Q Ra6 Nf3 Nec6 Kf1 Rh6 Qg5 Ne7 Nc2 a3 Nb4 a2 Nh4 a1Q Ng6 Nf5 Ne7 Ra4 Na6 Qa2 Rb4 Bd7 Bb1 d3 Ng8 d2 Qe1 d1R Bc2 Nc6 b8Q Nce7 b7 Nd5 Qa8 Nc7 b8R Rd3 R8b7 Re3 Qg3 Rg6 Qg1 Bh6 Bb1 Ra5 Bd3 Ba4 Qh5 Bc2 Qg5 Bb1 Qh5 Kd7 e6+ Kd6 e5+ Kd5 e7 Ra3 e8R Ra4 Be2 Ke4 e6 Bg7 e7 Bh6 Bd1 Kd3 Rc8 Kd2 Be2 Kc2 e8Q Ng3+ Kf2 Rg7 Qc5 Rg5 Bf3 Rge5 Be2 Re6 Bd3+ Kd2 Bh7 f5 Qg2 Kc2 Rd1 h1Q Rd6 Qh4 Qg1 Qd8 Rdb6 R6e5 Rf6 Re6 Rg6 f6 Kg2 Qd6 Kf2 Qb6 Kg2 Qa7 Kf2 Qb8 Kg2 Ne4 Kf1 Ng3+
r2N2b1/1P1pR3/p3R3/nBbkr3/3PRqp1/6Bq/1Rn1B1P1/b1QBK1Q1 w - - 1 2 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 b4 g4 Nc3 Qb6 Nd5 Qa5 axb5 Qa2 b6 Qb2 b5 Qf6 Nb4 Qg5 hxg5 cxb4 c4 Kf7 d4 e5 f4 h5 c5 e4 c6 b3 b7 h4 c7 e3 b6 b2 g6+ Ke7 g7 Kd6 f6 b1Q f5 h3 f7 h2 f6 e2 Ra6 Qf5 Nh3 Rh7 Ng5 Qb5 Ne6 Qh5 Nd8 Qb5 Bf4+ Qe5 Bg3 Nh6 g8B Rg7 Qc1 Nc6 b8R Be7 f8R Qf4 f7 Rg5 Re8 Na5 f8Q Nf5 Bb3 Ne3 Bd1 Bb7 c8B Kd5 Rg1 Bd6 Re4 h1Q Qh6 Re5 Qh2 Bc6 Bb7 Bc5 Bc8 Bb5 Bb7+ Kd6 Bc6 Bc4 Bb5 Bg8 b7+ Kd5 Re6 a6 Rc8 Bb6 Rc2 Ba7 Rb2 Bc5 Qh5 Qh3 Qf7 Qfh6 Qf2 Qf4 Rh1 Rc8 Qg1 Ra8 Kd2 e1B+ Ke2 Qh8 Rh7 Nc2 Rf7 Bc3 Rfe7 Qg5 Kf2 Qh3 Bfe2 Qd2 Ra2 Ba1 Rb2 Nb4 Kf1 Qf4+ Ke1 Nc2+
1k2nQ2/2qQp3/rNpB1QrP/2b4N/1p1Q1N2/qRP4N/bP5b/nK5R w - - 0 2 illegal: No possible last move
krQN2qn/1RbB2n1/1RPKnppQ/8/P1q2R2/3b2Q1/3p1P2/3rQR1N w - - 0 1 illegal: No possible last move
1Q3R2/n1bprb2/1PpRBqp1/Q7/3n3N/3R1NqQ/Q1P1k1P1/RKn3r1 w - - 1 2 legal: proof: d4 e5 dxe5 b5 a4 f6 axb5 Kf7 e4 Qe8 e6+ Kg6 e5 Na6 e7 Nb8 e6 Qd8 Bg5 Nc6 Bf4 Nb8 h4 c6 Bc7 Qe8 Be5 fxe5 h5+ Kf6 h6 g6 Qe2 Qf7 Qd1 Qg7 hxg7 Ba6 Qg4 Bb7 Qd1 Bc8 Kd2 Kf5 Kc1 Kf4 e8Q h5 b4 a5 b6 a4 b5 h4 e7 e4 b7 e3 f3 e2 b6 Ke3 f4 e1Q f5 h3 f6 h2 f7 a3 Bb5 a2 Qd8 Na6 e8R+ Ne7 g8Q Rb8 Nd2 Nb4 Nb3 Qg3 Rb1 a1Q Qd5 Qae5 Nd4 Na2+ Kb2 Nc1 Ra1 Kf2 Qh7 Qf6 Bc4 Bh6 f8R Bf4 Qc5 Bc7 Kb1 Ra8 Ba2 Ra5 Qg5 Re5 Nf5 Re1 Qhh5 Rh7 Qh3 Rf1 Nh4 Re1 b8Q Ba6 Qb7 Nc8 Re3 Re7 Qa8 Bc4 Bb3 Rf1 Qa2 Na7 Qb8 Bf7 Be6 Rd1 Rc3 Ke1 Qga5 Kd2 Ngf3+ Ke2 Ng5 Re1 Rf1 Rd1 Rff3 Rg1 Rb3 h1N Rfc3 Qe1 Ngf3 Ng3 Rc4 Nf5 Rd3 Qf2 Rcd4 Qg3 Rd6 Nd4
1r1R1B2/bp2QpN1/QP2n2N/1rb2Q1b/1pk2N1n/P5K1/P1b5/Q2NR1q1 w - - 0 1 illegal: No proof kernel
1r4n1/5pb1/1RNKrr2/1rn2Pp1/1p1P1NPB/6q1/kb1B3Q/B1QB1N1N w - - 1 2 illegal: No possible last move, all moves rejected
1B2R3/pp3nR1/P2Nrn1N/1PQ3b1/3QpPN1/Q2r3K/bNr3q1/k3r2Q w - - 0 2 illegal: No possible last move
Qb1Qr3/4pkr1/bN1nR1N1/2Qp3n/2b4N/1RqBP1b1/2Pp2QP/1K5N w - - 0 1 illegal: No proof kernel
6r1/1q4Nk/n1R2Qp1/3Q1Nr1/2N1bp1r/P1Qq1PPn/2Q1N1Kp/1B4nR w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Ra7 d4 Ra6 d6 Ra8 h4 g6 h5 Nh6 d5 Rg8 Be3 Rh8 Bd4 Ng8 h6 Bg7 hxg7 exd4 e4 f5 g3 Kf7 f3 h5 Kf2 c5 a6 b5 a7 h4 d7 d3 a3 d2 e5 f4 d6 c4 Ne2 b4 Nbc3 b3 Qe1 d1R Rc1 h3 Nd4 h2 Bd3 b2 Nf5 b1Q Ne2 c3 Kg2 c2 Qc3 Nh6 e6+ Kg8 e7 Na6 e8N Qb7 Be4 Rb8 a8N Ng4 Nb6 Rh4 Nc4 Kh7 Bd3 Nf2 Be4 Qdc7 d8Q Qd7 Qc7 Rd5 Qc6 Qd8 d7 Nh3 Qc5 Qf6 d8Q Qd4 Qf6 Qd3 Nfd6 Rg5 g8Q+ Kh6 Qc7 Bf5 Ng7 Re8 Qgf7 Rg8 Qd5 Kh7 Qcc6 Qd2 Bd3 Be4 Ndf5 Qd1 Rb1 c1N Rb6 Qd2 Bb1 Qd3 Qcc5 Kh8 Rc6 Kh7 Ned4 Ne2 Qc2 Neg1 Ne2 Qb4 Qcd4 Qb6 Qdc3 Qb7
RqrN1n2/P1pK2n1/b1npQRp1/n1P1RNP1/1k3BN1/6Q1/r2R2N1/n7 w - - 0 1 legal: proof: e4 a5 d4 e5 dxe5 a4 f4 a3 e6 Ne7 bxa3 Ng8 a4 Ke7 a5 Kf6 e7 Ke6 Qh5 Kd6 e5+ Kd5 Qd1+ Kc6 g4 g6 g5 Bg7 e6 Be5 Be2 h5 Bg4 hxg4 fxe5 Rh5 Nc3 Rh3 Nb1 Rh8 Kf2 Kb5 Ke3 f5 Kd4 g3 Kd5 g2 e8Q b6 c4+ Kb4 h4 f4 a4 f3 a6 f2 a5 f1N e7 d6 a7 b5 a6 Rh6 c5 Qd7 h5 Nd2 e6 Nb3 Qf3 Nc6 Ra2 Rb8 a8R Rh8 h6 Na7 h7 Nc6 a7 Nca5 Qg3 Nh6 Ne2 g1N Nd4 Rb6 Nc3 Nf5 Nd1 Ne2 Ne3 Ra6 Ng2 Qd8 Rd2 Ng7 Rf1 Na1 Nf5 Nd4 Rf3 Rf8 h8N Ndc6 Nf7 Bb7 Qd7 Qb8 e8N Rh8 Nf6 Rc8 e7 N5b3 e8R Ra2 Rb2 Ba6 Rbf2 Nba5 Be3 Kc3 Rf4 b4 Ng4 b3 Nd8 b2 Qe6 b1N Rd2 Kb3 Rff2 Ka4 Bf4 Kb4 Rde2 Nd2 Rf8 Ne8 Re5 Ne4 Rd2 Ng7 Qe8 Nh5 Ke6 Nef6 Qf7 Nh7 Kd7 Ng7 Qe6 N1b3 Rf7 Na1 Rf6 Nf8+
b4r2/rr1Q1nKP/NpR5/1Q6/N2B3p/n1qB2pB/B2k2PP/n3n1QQ w - - 0 1 illegal: No proof kernel
4QN1Q/2brpBpp/1Pbkb1QQ/8/8/q2NPRP1/n2N2nN/n1nK2R1 w - - 0 1 illegal: No proof kernel forced: wxDB
1nQ3N1/2Qb1RrR/1q2R1q1/2Q1p1RK/4Pq1p/1k3P1P/2NQnpq1/3B2b1 w - - 0 1 illegal: No proof kernel
B3Nn2/bRb1b1R1/1QN1n3/5pPp/k1N3RP/3rp2b/2K2PqR/2N3Qq w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 b5 axb5 Bh3 d4 Kd7 e4 Kd6 Bh6 Bc8 e5+ Kd7 d6 Ke6 d5+ Kf5 Bf4 g5 h3 g4 Bg3 Ra6 Bh2 g3 d7 Rd6 exd6 gxh2 Qe2 Kg5 Qd1 Kf6 Kd2 Ke5 b4 Kd4 g4 e5 h4 c5 b6 h5 b7 e4 b5 c4 b6 Kc5 g5 Kb5 Kc2 f6 Ne2 a4 Bg2 a3 Nc1 a2 Qg1 c3 Nd2 Nh6 Nc4 Ka4 Rb1 Qe7 d8R a1B d7 Nf5 d6 Ng7 Re8 e3 d8Q Nd7 b8R Ne6 b7 Qf7 Rb2 Be7 Rg8 Ndf8 d7 Bc5 Rg6 Ba7 Qb6 Qe8 d8N Qc6 Rg7 Bd7 Bf1 Qg2 Nf7 Rg8 Nfd6 Bc8 Kd3 c2 Ne8 Rh8 Rb5 Be5 Be2 Bf4 Bf3 Bc7 Ra8 Rh6 b8N Rh7 Nc6 Bd7 Ne2 c1B Kc2 Ba3 Nc1 Be7 Rb8 Rh6 Rb7 Bc8 Rd5 Rg6 Rd4 Rh6 Qe1 Rh8 Rg4 Rh7 Rg1 h1Q Rg8 Bg3 Rc7 Bb4 Rd4 Qf1 Nd8 Bb7 Rg2 f5 Rh2 Rd7 Rg7 Be7 Rg4 Rd3 Be4 Qh3 Qg1 Bd5 Bg2 Bf3 Rd7 Be2 Be4 Bf1 Ba8 Bgd6 Rb7 Bc7 Nc6 Qg3 Nf6 Bh3 Ne8 Qgg2
1Q5B/1Kn2Pr1/Prn3BB/5Q1p/k3N1p1/2bqrpP1/1QRp4/3b1NQB w - - 0 1 illegal: No possible last move, all moves rejected
3Q4/KpBn4/1p2q1rb/2P1p1Qp/2B1P1rB/3Q1n2/BNQ2P1k/4NRrb w - - 0 1 illegal: No proof kernel
8/1R5Q/Q2Qrbn1/1Pnqppr1/R1N1Q1p1/1P1pPN2/1B2r2N/KbNk4 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 Ba6 dxc5 Bb7 Bh3 Bh6 fxg5 Bg7 g6 Bc8 g5 Bf8 Bg4 hxg4 Kd2 a5 Kc3 d5 h4 Kd7 g7 Ke6 h5 Ke5 h6 Ke4 h7 e5 b3 f5 Kb2 d4 c4 a4 c6 Be7 g6 Nd7 e3 Ngf6 g8Q Nb6 c7 Ne8 c5 Nd5 c6 Qd7 g7 Bf6 Ne2 Kf3 Nd2+ Kf2 Nf3 Nd6 Nh2 Nb4 Qd5 Nf7 g8Q Ra6 Qe4 Bb7 c8Q Qd5 c7 a3+ Kb1 Nd3 Bb2 Rd6 Nc1 Nc5 Qg6 Ba8 Qa6 Re6 c8N Rg8 Nd6 Nh8 Nc4 Bb7 Qh5 Ng6 h8N Ba8 Qh7 a2+ Kc2 Rg7 Nf7 Bc6 Ng5 Ba8 Rb1 a1R Ngf3 Ra2 Ra1 Rg8 Kb1 Bb7 Bc3 Re2 Bb2 Bc6 Qdd3 Ba8 Ra4 Rg7 Ng1 Ke1 Ka1 Bc6 Qc3+ Kd1 Qb4 Nh4 Qa3 Rg5 Qb4 Ng6 Qa3 Nd7 Qd6 Nc5 Ngf3+ Re1 Qb1 Qe4 Qg8 Nf8 Nf1 Re2 Rh7 Ng6 N1h2 Qd3 Rc7 Be4 Rb7 Qd2 Qh7 Qd3 Ncd2 Qc4 Qd3 Qd5 Qc4 Bb1 Qb4 d3 Qe4 Ne7 Nc4 Ng6
B2R3Q/pnKbq2r/pN5N/3NpP1k/P3P3/BQ1b1n2/BNpr1q1B/8 w - - 1 2 legal: proof: b4 g5 h4 f5 g4 d5 gxf5 g4 c4 Bh6 cxd5 Bg5 hxg5 Nd7 a4 Kf7 Rh6 Ke8 Ra6 bxa6 Ra3 Nf8 Rh3 Nd7 Rh1 Nb8 d4 Kf7 Kd2 h5 Kc3 c5 Kc4 e6 f4 h4 f6 Kg6 d6 h3 d7 h2 f7 g3 f8N+ Kh5 f5 g2 g6 Kg4 b5 Qb6 d8N Rh3 d5 Ra3 d6 Bb7 g7 Nd7 Nf3 g1Q Nc3 Rc8 Nd2 Rc7 Nd5 Qa5 b6 Nh6 g8B Rb3 Ba3 Re3 Bg2 Qe1 Nf7 Kh5 Qb3 Ng4 Nh6 Bc6 b7 Rd3 b8B Qf2 Rd1 h1B e3 Nh2 Be4 Nf6 d7 Nf3 d8Q Rh7 Nd7 Ne8 N7b6 Bd7 Bh2 e5 Qf6 Bg2 Qh8 Bh1 Ne7 Bg2 Ba8 Bf1 e4 Be2 Ned5 Bf1 Nc8 Qd8 Ncb6 Qe7 Nb1 Qg2 Nbc3 Qf2 Rd2 Be2 Nd1 Bf1 Nb2 Rd4+ Kc3 c4 Rd3 Nd6 Kb4 c3+ Kc5 c2 Be6 Bc8 Kc6 Bd7+ Kc7 Nb7 Nc3 Nd8 Qb4 Nb7 Ba2 Be2 Qb3 Bf1 Re3 Rd2 Rd3 Bb5+ Rd7 Bfd3 Ncd5 Qf6 Rf7 Bd7 Rf8 Qf7 Rd8 Qe7
1kn1N2N/R2Kp3/3rB3/1p2P2b/qB1p1pNp/Q2P2QQ/NPr4p/b5Q1 w - - 1 3 illegal: No proof kernel
3R2B1/N1R5/b1bqBPnr/1r2krR1/3bP1R1/r4p1n/B4PRN/B4K2 w - - 0 1 legal: proof: g4 e5 d4 g5 h4 b5 hxg5 f5 a4 c5 dxc5 Bh6 axb5 Bg7 Qd4 Bf8 Qf4 exf4 gxf5 Bb7 Nc3 Ba6 Nb1 Bc8 b4 Ke7 c4 a5 e4 d5 g6 Kf6 g7 h5 b6 h4 c6 a4 b7 h3 b5 d4 c7 a3 c5 a2 c6 d3 b6 h2 Nf3 Be7 Na3 Ra6 Rg1 h1R Nb5 Ra5 Rg4 Na6 b8R R1h6 b7 Nc5 Nh2 f3 Na7 Ke5 f6 Ne6 Bb2+ Qd4 Rd1 Ng5 Ba1 Nh3 Rg2 Bd7 c8R Bc5 c7 Ne7 g8B Ng6 Rc1 Be8 Rd8 Bc6 c8B Rb5 Bce6 R8h7 Be2 d2+ Kf1 d1B B2c4 Rg7 Rc3 Qd6 Rbc8 Re7 b8R Bd4 Rc7 Bb3 Bcd5 Bc4+ Rd3 Reh7 Rbc8 Rh8 Rg7 Rh5 Rcc7 R8h6 Rg4 Rf5 Rg2 Nh4 R7g3 Ng6 Rg4 Bb3 Rc3 Bc2 Rc5 Bd1 Bb2 a1R Bc3 Ra3 Ba2+ Qd5 Ba1 Bb3 Rc1 Qd6 Rg7 Bbd5 Rc4 Bb7 Rcc7 Ba6 Rg5 Bc6 R5g4 Nh4 R7g5 Ng6
Bb1B1q1N/5nBR/R3N2P/2K1N2q/2P1pn2/2N1r1q1/nPrk4/2NB3r w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 f5 Qc7 g5 Kd8 Qg4 hxg4 Ne2 Bb7 Ng1 Bd5 g6 Bf7 gxf7 Kc8 Bh3 Qd8 Bf1 Kc7 Ke2 d5 Kd3 e5 c4 a5 h4 g5 c6 Kb6 c7 Kc5 c8B e4+ Ke3 d4+ Kd2 g3 h5 a4 b6 g4 b7 d3 Kc3 g2 Ne2 g1N Bg2 a3 Bh3 g3 Bg5 d2 Nc1 d1Q Bg4 Na6 b8N a2 Bb7 g2 Nc6 Nb4 Ne5 Bd6 f8B Nh6 f7 Nh3 f6 g1Q Bg7 Nf4 f8N Nf7 Nfg6 Qf8 Be2 Ra5 Ba8 Bb8 Bh4 Rg8 Nh8 Qg3+ Bf3 Qd5 Kb3 Kd4 Nc3 Ke3 Bd1 Kd2 Rh3 Nd6 f7 Ra6 Bd8 Ra7 Rb1 a1R Rh4 Na2 Rh1 Qe7 f8N Nf7 Ne6 Qf8 Rh3 Qdc5 Rh4 Rd7 Ka4 Rd3 Rh3 Qcf2 Kb5 Re3 Rh4 Qe8+ Kc5 Rf8 Rg4 Rg8 Rg6 Qf1 Rh6 Qe2 Rh7 Qf8+ Kc6 Qef3 h6 Qfg4 Bgf6 Rg5 Bg7 Rh5 Kb5 Rh1 Kb6 Qh5 Kc6 Nb4+ Kb5 Ra3 Ra1 Rb3 Ra6 Na2+ Kc6 Re2 Nb5 Rbe3 Nc3 Ke1 Kb5 Rc2 Kb6 Kd2 Kc6 Qg8 Kc5 Qf8+
2r1RN2/r2NRb1P/2p3Bb/1p5N/2Pp1q2/k1nR1RPn/1N1KR2B/4b3 w - - 0 1 illegal: No possible last move
4b1RR/P1N1p1bn/2P1pkn1/4N2R/bNN1P3/p4Bp1/r2K2R1/1n2B1N1 w - - 0 1 legal: proof: d4 a5 g4 b5 a4 h5 gxh5 c5 dxc5 b4 Qd6 Qb6 Qe6 fxe6 b3 Qb5 axb5 a4 Bd2 a3 Bc1 Ra4 bxa4 Rh7 Nc3 Rh6 Nb1 Rh8 e4 Kf7 c4 d5 h4 g5 f4 b3 a5 d4 f5 g4 c6 b2 b6 d3 c5 g3 c7 Rh6 f6 Rh7 b7 Na6 b8N Nh6 c6 Bg7 Kd2 Rh8 Be2 Re8 Bf3 Rd8 Nc3 Nc5 a6 Na4 a7 Nc5 Na2 Rf8 Na6 Ng4 h6 Bd7 c8N Rd8 h7 Nh2 h8N+ Kg8 h5 Na4 h6 Ng4 Ng6 Kf7 h7 Be8 h8R Nb6 N2b4 Ne5 Nc7 Nbd7 Nb6 Nf8 R1h5 Nh7 Nc4 Rd7 Ke1 Rd5 Bd2 Rc5 Bc3 d2+ Ke2 d1B+ Kd2 Ba4 Re1 Ra5 Re2 Rc5 Rg2 Rd5+ Ke2 Rd1 Be1 Ra1 Kd2 Ng5 Nf4 Ra2 Nfd3 Kg6 f7 Kf6 Rg8 Ng6 Nde5 Nh7 f8R+ Bf7 Ra8 Be8 Rh8 Bd7 Rag8 Be8 Re2 Bc2 Rf2 Ba4 Rg2 b1N+
1n1B3N/4Bn2/1N1Rrb2/1Kr1rpnk/3P1PNP/4n1qb/BbB1N1R1/7N w - - 0 1 illegal: No possible last move, all moves rejected
5B2/rknN1r1b/q1qnP3/4r1nB/Rp1R2N1/BP1N4/1b1PrN2/3BK1B1 w - - 0 1 illegal: No possible last move, all moves rejected
b4Bnb/1bbp4/BqN4N/n1BP2rR/R2rNNq1/P4PKB/4q3/6kN w - - 0 1 illegal: No possible last move, all moves rejected
q1nq4/2n1brP1/R2BK2N/1p3R2/1N4RR/1PNB1q1n/R1P3bq/r3N2k w - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 f5 exf5 a5 d4 a4 dxc5 a3 b3 Ra7 Qd4 Ra8 Qb2 axb2 Kd2 Kf7 Ke3 d5 Kf4 b5 Ke5 h5 a4 h4 f4 d4 g4 e6 a5 d3 a6 d2 g6+ Kg7 f6+ Kh6 c6 d1N c7 h3 g5+ Kh5 a7 Kh4 f7 Kg3 f5 h2 f6 Bc5 f8R Nf2 f7 Rh7 Nf3 Bb7 c8N Ne7 Rg8 Na6 f8R Nc7 Nb6 Nc8 Nd5 Be7 Nbc3 b1Q Bd3 Kg2 Ba3 Qd1 Bd6 Qd2 Rf6 Rf7 Nb4 Bc6 Rf4 Qd1 Rf1 h1Q Rh4 Nh3 Ra4 Qg1 Rg7 Kh1 Rf2 Rb8 a8R Rb6 R4a7 Ra6 Rg8 Ra1 Ra3 Rf4 R8a6 Qh2 Ra2 Bb7 Rg2 Qf1 Rgg4 Qfg2 Rf8 Qf2 Nd2 Bg2 Nf3 Qf1 g7 Qd1 g8N Rf6+ Kd4 e5+ Kc5 e4 g6 e3 g7 e2 Nh6 e1Q Kd4 Qee2 Ne1 Qe4+ Kc5 Qdf3 Rf7 Rg6 Rf5 Qa8 Kd4 Rf6 Kc5 Rf7 Kd4 Qg1+ Ke5 Nd5 Ke6 Qh2 R2a3 Qhg3 R3a5 Qh2 Ra2 Nc7+
1N4bn/pK1B4/RNBpP1R1/1nRBr3/n4B2/3Pq2B/1r2k1Pr/b4n1R w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c5 b4 Qf6 c3 Nc6 b6 Qe7 b5 Qd8 Qa4 Nb8 Qb4 cxb4 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kf4 e4 h5 b7 f5 e6 d6 g6 b3 b6 b2 e7 h4 e8B h3 e5 h2 c4 Be7 c5 Bg5 c6 Rh6 g7 Qd7 c7 Bf6 Nc3 b1R Nf3 Rb2 Na4 Qe7 Bc6 Na6 b8R Nc5 b7 Rh7 Ra3 Nh6 g8B Nf7 Nd4 Nh8 Nb6 Na4 Bfb5 Bd7 Rf8 Re8 d3+ Kg3 c8B Kf2 b8R f4 Rf7 f3 Bf4 Rh5 Rg7 Be6+ Ke4 Bb3 Rg6 Rh6 Bh3 Bf7 Ne6 Ke2 Kd5 f2 Rc8 f1N Bd7 Bg7 Kc6 Rh4 Nd8 Bc4 Bh7 Bg8 Kb7 Qg5 Bbc6 Bf6 Bg3 Qe3 Bf4 Rh6 Bd5 Bg7 Nc6 Bf6 Rg1 h1N Nb8 Nhg3 Rc5 Nf5 Rh1 Nd4 Ra2 Nb5 e6 Rh5 Ra3 Re5 Ra1 Nac3 Ra6 Na4 Rg4 Re7 Bhe4 Rh7 Rg6 Bg7 Bhf5 Rh2 Bh3 Rg5 B5c6 Bd4 Bed5 Re5 Ba2 Rb4 Bc4 Ba1 B4d5 Rb2
rB3BBN/Bb1p3N/1bb3pN/NP4qk/B7/R3npKP/2r1RP2/2n4r w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 g4 Rh7 gxh5 Rh8 Qd4 exd4 c4 a5 b4 f5 e4 Kf7 b6 a4 h3 a3 c6 f4 e5 d3 h6 Kg6 b7 a2 c7 d2+ Ke2 Qe7 Kf3 Rh7 c5 Nc6 b8B Na5 e6 Kg5 c6 g6 Bb5 Ba6 c8N Nb7 c7 Qg7 e7 Qd4 e8B Qh8 Ba4 Qd4 b5 Nc5 Ne7 Qc4 c8N Qf7 Ba3 Kh5 Nd6 Qe6 Bf7 Qc4 Nef5 Rh8 h7 Ne7 Bg8 Qd4 Nh6 Qf6 Ndf7 d1B+ Kg2 Bg7 Nf3 Nb3 N3g5 Nc1 Nd2 Nf5 Re1 Ne3+ Kh2 f3 Nc4 Bb3 Na5 Bd5 Bf8 Bab7 Re2 Bdc6 Kg3 Qf5 Rb1 a1R Rb3 Bc3 Ra3 Bd4 Bc5 Na2 Bca7 Rc1 Ne5 Be4 Bd5 Rhc8 h8B R8c2 Bg7 Ra1 Bg8 Rh1 Bf8 Bec6 Nef7 Bb6 Nh8 Nc1 Nh7 Qg5+
NN1kr3/Rn2RpbB/pn1p4/q3N1P1/5Pb1/3N4/RPR5/rKnq2BR w - - 0 1 illegal: No possible last move
K5k1/1B4pq/Np4P1/1R2n1Pr/b1nb3P/1p1Nr3/RB3bNb/RN2R2N w - - 0 1 illegal: No proof kernel
rn1RN3/2pbk2N/5np1/2Rpr2P/N2q3q/2KRq1PB/N1P4B/2R1rN2 w - - 0 1 legal: proof: e4 b5 a4 e5 axb5 Ke7 d4 Kf6 dxe5+ Ke7 f4 Bb7 e6 Kf6 e7 Bc8 e5+ Ke6 g3 h5 Qd3 g6 Qa3 h4 Qf3 h3 Qg2 hxg2 Na3 Bg7 Nb1 Kf5 e6 Be5 Nc3 Kf6 fxe5+ Kg7 Nb1 Rh4 Ke2 Rh6 Ke1 Rh8 Kd2 a5 e8R d5 h4 f5 b4 f4 e7 Kf7 b6 f3 b5 f2 e6+ Kf6 b7 a4 b6 a3 h5 a2 Ne2 g1Q Bh3 f1Q Kc3 Qh2 Be3 Ra4 Bg1 Nd7 b8R Qc1 b7 Rh6 Nd2 Qf2 Nf1 Rh8 Bh2 Qcf4 Rd1 a1R Nc1 Rb4 Na2 Qe4 Rd3 Ne5 Rg1 Qd6 Rd8 Nd7 e8N+ Ke7 Nf6 Qdb6 Nh7 Qh4 Ra8 Rab1 b8N Qfe3 Na6 Ngf6 Nc5 Re1 Na4 Nb8 Ra5 Re4 Rc5 Bd7 Rh1 Re5 Rg1 Kd6 e7 Qa7 e8N+ Ke7 Nb6 Qaa4 Rh1 Qaf4 Na4 Qfd4+ Kb3 Bb5 Rc8 Ba6 Nd2 Bb5 Ng7 Re2 Rc1 Re1 Nf1 Na6 Ra8 Rd8 Ne8 Bd7 Rb8 Qde4 Kc3 Qe4f4 Rb7 Ra8 Rb8 Qfe4 Rc8 Nb8 Rd8 Q4d4+
2n5/2BB2BK/1P1N2N1/nq3RR1/r2Pnb2/1b2B2r/rNk1q1P1/2qR2N1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Qd7 cxd5 Qd8 Qg4 Na6 axb5 Ra8 b6 Nb8 b5 Qd7 Qf4 Qd8 Qb4 axb4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 f3 Kd4 g6 c5 Kg5 h5 g7 e5+ Kg6 h4 d6 h3 f6 c4 f7 e4 d3 c3 b7 h2 f4 b3 f5 e3 d7 c2 f6 e2 b6 e1R Nd2 Kc3 d4 b2 Bb5 b1Q Nc4 Nc6 b8B Ra4 Nb2 Qe8 d8N Qe2 Nb7 Bd6 f8N Bf4 f7 Be6 Bc7 Bb3 Nd6 Rh3 Be3 Na5 Bd7 Rf1 Ra3 Rf2 Ra1 Qbf1 Rb1 Qb5 Rd1 Qfe2 Rf1 c1Q Rd1 Rg3+ Kh7 Ne7 g8R Kc2 Rg5 Nc8 Ng6 Rgf3 f8B Rh3+ Bh6 Qd5 Nf3 Qdb5 Rhf1 h1N Ng1 Ng3 Rh5 Rf3 Bg7 Ne4 Rf2 Rfg3 Rf3 Rg5 Rg3 Rc5 Rg5 Rcc4 Rf5 Ra2 Rg5 Rca4 Rf5 Rg3 Rhg5 Rh3+
B2qN3/2R5/r1b1R2R/n7/P1qBr2r/NP4r1/n2PkNbR/bNK4B w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 hxg5 Nc6 c4 Nb8 cxd5 Bh6 Bc4 Bg7 Bf1 Bf8 b3 a5 Qg4 a4 Qd1 a3 Qc2 Kd7 Qb2 Ke8 Ba6 axb2 Bxb7 Qd7 Ba6 Qd6 Bb7 Qd8 Kd1 Kf7 f4 e5 g4 h5 a4 c5 d6 e4 g6+ Kf6 d7 h4 g5+ Ke7 f6+ Kd6 g7 h3 f7 h2 g6 c4 f5 Kc5 f6 Kd4 Nh3 e3 Nf2 Ba3 f8N c3 f7 Ra6 Ba8 Ne7 g8N Nbc6 g7 Rh4 Nf6 Bb7 g8B Nd5 Ne8 Na5 Ng6 Bc6 f8R e2+ Kc2 e1R Ne5 Ree4 Rf6 Bf8 Re6 Bg7 Nc4 Be5 Rh6 Bf6 Re1 h1B Nca3 Bg2 Be6 Rhg4 Reh1 Rg3 R1h2 Bh8 Kd1 Bg7 Bf5 Rh4 Be4 c2+ Ke1 Nc3 Re6 Qe7 d8R+ Qd7 Rc8 Qd8 Rc7 Bh8 Nd1 Bf6 Bf3 Kd3 Bd5 Bh8 Rh6 Bg7 Nf2+ Kd4 Rd6 Ne2 Rh6 Bh1 Nc3 b1R Nfd1 Kd3 Bb2 c1Q Bf3 Bg2 Bd5 Bf1 Bh1 Be5 Na2 Qc5 Nc3 Rc1 Rb1 Bfg2 Ra1 Rc2 Rc1 Bh8 Ncb1 Rcc4 Ba1 Rcg4 Rc4 Rf4 Re4 Qc4 Ree6 Re4 Bb2 Bc3 Ba1 Bb4 Bd4 Bc3 Ne3 Ba1 Kd1 Nc3+ Kc1 Ke2 Ng4 Qf6 Nf2 Qg5 Rf7 Qd8 Rc7 Na2#
5N2/1B1K3B/nR5R/1NRbrnr1/1NP3PB/1r1q1bbR/P2p4/Bq4k1 w - - 0 1 legal: proof: d4 a5 g4 g5 b4 f5 bxa5 c5 dxc5 h5 e4 h4 exf5 Nf6 Qd6 Ng8 f4 Rh5 fxg5 Rh8 Qg3 hxg3 Kd2 Kf7 Kd3 e5 Kc4 b5+ Kd5 d6 c4 b4 h4 g2 f6 Kg6 f7 b3 h5+ Kh7 c6 b2 a6 e4 c7 e3 a7 e2 h6 Kg6 h7 e1R Ne2 g1Q Bg2 Nh6 Nd4 Na6 Kc6 d5 Nc2 d4 Rh3 d3 Nba3 b1B Nb4 Nf5 Nb5 Rg8 h8B Be6 c8R Rb8 a8R Re5 Bg7 Rb7 Rab8 Bd6 Be3 d2 Bf2 Bc2 Bh4 Qb1 Bd5 Bd1 f8N+ Kf7 Bf6 Bf3 Bh8 Bc7 Be4 Qdd3 Bd5 Qbb3 Rah1 Qbb1 Be4 Bd5+ Kd7 Rb6 Bf6 Bd6 Rc5 Rg7 Bd8 Rg8 g6+ Kg7 Bdf6+ Kh6 Bh8 Bc7 g7 Bd6 Be1+ Kg5 Bh4+ Kf4 R1h2 Ke3 Rb7 Rc6 Rb6 Rc8 Rh1 Rb8 R1h2 Bf7 Bb7 Bd5 Bf2+ Ke2 Rh6 Kf1 R2h3 Kg2 Bh4 Kg1 Ng6 Rgf8 g8B Bc7 Bh7 Rg8 Nf8 Rg5 Bc6 Re6 Bc3 Bg3 Bb7 Re3 Be5 Re8 Ba1 R8e5 Bg8 Qe4 Bh7 Rb3 Bg6 Qd4 Bh7 Qdd3
2nr4/1Bnk1N1q/NPpr1n1q/bn1P4/BR3B2/4N2P/1RR2K2/1B1Rb3 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Bf5 gxf5 Bc5 Qb3 Be7 Qh3 Bf8 Qg4 hxg4 d4 a5 b4 g5 e4 g3 b6 g2 e6 a4 e7 g4 b7 f3 h3 g3 b5 a3 e5 a2 b6 Ra3 f6 Kd7 f7 Ra7 e8B+ Ke7 d6+ Ke6 d7 Bb4+ Nc3 Qf6 f8R Ne7 d8R Na6 b8N Ba5 Bd3 Nc8 Rb1 a1N Rb4 Qh6 Nd1 Nb3 Ne3 f2+ Ke2 f1N d5+ Ke7 e6 Nfd2 Nf3 g1B Bc6 g2 Bb1 Bf2 Bb7 g1Q Ng5 Be1 Rf2 Ne4 Nf7 Qg8 Kf3 Qgg7 Rb2 Nf6 Rd6 Ra8 Rc6 Rd8 Rcc2 Qgh7 Rf1 Ke8 e7 Nd4+ Kg2 Nb5 Rh1 Bf2 Rd1 Be1 Kg1 Rd6 Kg2 Nc5 Na6 Ne6 Kg1 Kd7 Kf1 Nca7 Kg1 Rd8 e8B+ Ke7 Kf1 Nc8 Kg1 Nbd4 Ba4 c6 Kg2 Nb5 Kf1 Kd7 Kg2 Bc3 Kf2 Nec7 Ng4 Nfe8 Bf4 Nf6 Ne3 Be1+
B1RN4/R2nq1PB/2n2B2/r6N/3b2Kp/nP1bR2N/P1qNr3/k1B2n2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 hxg5 Nc6 c4 Nb8 cxd5 Bh6 Bc4 Bg7 Bf1 Bf8 b3 a5 Qg4 a4 Qd1 a3 Qc2 Kd7 Qb2 Ke8 Ba6 axb2 Bxb7 Qd7 Ba6 Qd6 Bb7 Qd8 Ke2 Kf7 Kf3 e5 d4 c5 g4 h5 g6+ Kf6 d6 c4 d5 c3 d7 c2 g5+ Ke7 g7 Kd6 g6 Kc5 f6 Kb4 f7 Ra4 d6 Ne7 g8B Bg7 f8N Ra5 Nh3 Nec6 Ne6 Qe7 d8N Nd7 Ba8 Ba6 Bh7 Re8 Nef4 Bd3 Nd2 Kc3 Rg1 h4 Nh5 b1Q Kg4 e4 f4 e3 f5 e2 f6 e1N f7 Bd4 f8R Qb2 g7 Qb1 Rf3 Qb2 Rgf1 Qb1 Ba3 c1N Re3 Ne2 Bc1 Ng3 Rf7 Qb2 Rb1 Nc2 Ra1 Na3 Rb1 Qa1 Rb2 Nf1 Rc2+ Kb4 Rc5 Qb1 Rc3 Qc2 Rc5 Ncb8 Rc7 Nc6 Rc8 Nf8 d7 Kc3 Rg3 Qf6 Rf3 Re2 Re3 Qd6 Nb7 Qe5 d8B Nd7 Bg5 Qe7 Bf6 Qb2 Nd8 Kc2 Nf3 Kb1 Nd2+ Ka1 Nc4 Qf8 Nd2 Qc2 Rfe7 Nb6 Rb7 Qe7 Ra7 Nd7
1N1K3b/1p1RPNr1/1B6/3B1R2/np4r1/1NrbrPP1/k2b1B2/1R1R1Bn1 w - - 0 1 legal: proof: e4 e5 b4 c5 h4 a5 bxa5 g5 hxg5 f5 exf5 e4 d4 Qb6 Qd2 Qd6 Qb4 Qe5 dxe5 cxb4 Ke2 Kf7 Ke3 d5 Kd4 h5 c4 h4 a4 h3 f3 h2 g6+ Ke7 Kc5 e3 Kb6 e2 Kc7 e1B f6+ Ke6 g7 d4 a6 d3 a5 d2 g3 d1R a7 Rd2 a6 Nd7 c5 Kd5 f7 Rh4 e6 Rd1 c6 Rc4 Nh3 Rh4 Kd8 Rdd4 c7 Ne7 g8B Rhe4 Ng5 Rd3 Nd2 Ng6 Nb3 Kc4 Be3 Re5 Bb6 Rb8 a8R Bg7 f8B Bh8 a7 Bd2 Rb1 Re3 Bfc5 Nf4 Nf7 Ne2 e7 Rc3 Rg1 h1R Rd1 Re6 Bf2 Nc5 Rb1 Bd7+ c8R Rh7 Rh1 Rg7 Rh5 Bc6 Rf5 Bb5 Nh6 Kd3 Kc7 Kc2 Rd1 Kb2 Rd8 Nd4 Rd7 Ree3 Bd5 Rbg8 Nf7 Rg4 Rc8 Rc2 a8N R8g7 Kd8 Bd3 Nc7 Ne2 Na6 Ka2 Nb8 Ng1 Rc6 Na4 Rcc7 Rb2 Rcc1 Rc2 Rb1 Rc3
2n4R/N1P1NBk1/1B1N4/5BPr/b1R1pRpr/2b1P3/K2Nb2p/5bRr w - - 0 1 legal: proof: g4 b5 a4 g5 axb5 f5 gxf5 c6 h3 g4 h4 Qb6 Ra3 Qe3 Ra1 Qg5 hxg5 Bb7 Rh3 Ba6 Rh1 Bc8 b4 c5 d4 Bb7 c4 Na6 b6 Rb8 b5 Nh6 Qa4 Bc8 Qb4 cxb4 c5 Ng8 c6 Nc5 dxc5 Ra8 Kd1 Kf7 Kc2 d5 Kb3 a5 f4 e5 f6 h5 c7 a4+ Ka2 h4 f5 e4 b7 d4 b8N d3 c6 d2 b6 d1B b7 a3 Nc3 h3 Be3 h2 Rc1 Ba4 Bb6 Ra7 e3 Bc5 Bc4+ Kf8 f7 Rh3 Nb5 Nf6 Nd6 Rh5 Nf3 Ng8 Rhg1 Bd7 c8B Kg7 f8N Bd4 Nd2 Ne7 Ng6 Bc3 Bf7 Be8 Bd7 Nc8 Ne7 Ra8 c7 b3+ Kb1 b2 Nbc6 Bd1 b8R Be2 Na7 Bf1 Ka2 b1B+ Kb3 Bbd3 Ka2 Bde2 f6+ Kh7 Bde6 Ba4 Bf5+ Kh8 Bb3 Rh4 f7 Kg7 f8R Rh5 Bf7 Rh4 Bc5 Rh5 Rh8 Rh4 Rb4 Rb8 Rc4 Rb6 Nb7 Rbh6 Bb6 R6h5 Nd6 Ba5 Kb1 a2+ Kb2 a1R Rb1 Bg2 Rbf1 Rb1+ Ka2 Bc3 Rf4 Bh3 Rg3 Rh1 Rg1 Bhf1
N1k1rRbN/r5rp/6P1/1bK3PR/1R1bNqn1/RB1qb2P/3n1B2/1BB5 w - - 0 1 illegal: No possible last move, all moves rejected
nnN5/R4RKB/Bn5B/Nr1kn3/p1b1pP1q/P4rB1/R3PR1q/3N3r w - - 0 1 legal: proof: d4 c5 dxc5 h5 g4 f5 gxf5 e6 b4 Qe7 c4 Na6 c6 Qf6 c7 Qb2 c5 Qa3 Qd4 Nb8 Qg4 hxg4 c6 Bc5 bxc5 Qh3 Bf4 Qh4 Bc1 Qd8 Kd2 Kf7 Ke3 g5 Ke4 a5 Ke5 d5 h4 b5 a3 a4 f3 d4 f6 g3 h5 b4 h6 b3 h7 d3 Nh3 d2 Rh2 d1N Nf2 b2 Nd2 b1R Ra2 g2 Nc4 g1Q Na5 g4 Bg2 g3 Bh6 Ne3 Nd1 Ba6 c8R Rb5 c7 Nd5 c6 Nge7 Bh3 g2 Bf5 Rf8 h8B Qh1 Be4 g1N Rf2 Qh3 Bh7 Qh2+ Bf4 Ra7 Bg3 Ra8 Bg7 Nb6+ Ke4 e5 Bh6 Ke6 f7 Rh8 f8R Ned5 Rf7 Qdh4+ f4 Nf3 Rd8 Ra7 c8N Rb7 c7 Na8 Rdd7 Ndb6 Na7 Rb3 c8B Bc4 Rde7+ Kd6 Kf5 e4 Kg6 Kd5 Kg7 Ne5 Rc7 Rf3 Rce7 Rc7 Ba6 Rc5 Nc8 Rb5 Nd6 Rc8 Ra7 Rcc5 Nc8 Rb1 Nb2 Rh1 Nd1 Rb5
7B/3RpNNB/3Rqn1K/knr3p1/Pp4bn/2p1bB2/1r1P2P1/2R1RBN1 w - - 0 1 illegal: No proof kernel
N3B1rR/1bpn3R/5BNN/1rP2p2/1bp1pP2/R1qb1K2/1q2P3/1kB3BR w - - 1 3 illegal: No possible last move, all moves rejected
k1Kq1nRR/Br1B1N2/4Q1Rr/1bB2N2/rr3bPq/NP2Pn2/4P3/3b4 w - - 0 1 legal: proof: c4 d5 cxd5 e5 Qb3 b5 Qc2 b4 Qd1 b3 axb3 e4 h4 g5 hxg5 a5 Rh4 e3 fxe3 a4 Rh5 a3 Rh1 axb2 Kf2 Kd7 Kf3 f5 Kf4 c5 Ke5 Kc7 d4 Kb7 g4 h5 d6 f4 g6 c4 d7 f3 Ke6 c3 d5 f2 g7 h4 d6 c2 Bg2+ Nc6 Nf3 f1R Rg1 h3 Na3 b1B Bd2 c1R Nd4 h2 Nf5 h1Q Bb4 Rc4 Qd5 Nf6 g8R Bc2 Bc5 Qh4 Rh1 Raa4 Be4 Be7 Bd3 Rcf4 Bb5 Ka8 Qe4 Ba6 Rh2 Qe8 d8N Nd7 Nf7 Bd1 Rc1 Qd8 Rc2 Ne5 d7 Bg5 Rd2 Bh6 Rd6 Ng6 Qe5 Rfb4 Qd5 Qf8 d8B Bf4 Kd7 Rh6 Qe6 Nd4 Bdb6 Nf3 Ba7 Qe8+ Kc7 Nf8 Bd7 Bb5 Rh3 Qee7 Kc8 Rh1 Ra6 Qeg5 Qc4 Rb6 Qe6 Rb7 Rc6 Qg3 Rhh8 Rh6 Qe8 Qh3 Rcg6 Qhh4 Qe6 Qd8+
N5r1/2P5/2rnkP2/RBP1nn2/q1qP2N1/b4nBq/4N1q1/Q1R1K1RB w - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 d3 gxh4 d4 c5 dxc5 d4 Qd3 Kd7 Qc4 d3 Qxf7 Bb7 Kd1 Be4 Ke1 d2+ Kd1 Bd3 exd3 Qe8 Ke2 Qd8 g4 d1N f4 h5 b4 a5 c4 a4 g5 h3 c6+ Kd6 d4 e5 b6 a3 c7 a2 b5 e4 g6 e3 f5 h2 b7 h4 f6 h3 b6 Nb2 g7 Ra7 Nd2 Ra8 Ke1 e2 Ndf3 Ra7 Ne5 Nh6 g8B Qc8 Ng4 Nc6 b8R Ne5 Ra8 Nf5 Bf4 Ra6 Rc1 a1Q Bg3 Qa4 b7 Rc6 b8N Qe6 Bh7 Rg8 Ra5 Qd5 Qg6 Ke6 Nd7 Ba3 c5 Nbc4 Nb6 Ncd6 Na8 Qdc4 Qg7 Ne3 Be4 Nef5 Kf2 e1N Ne2 N1f3 Rg1 h1Q Qh6 N3h4 Ke1 h2 Qe3 Qf3 Qc3 h1Q Qa1 Qfg2 Bf3 Qhh3 Be4 Qgh2 Bh1 Q2g2 Nc3 Qca2 Bb5 Q2c4 Ne2 Nhf3#
1b6/1q1b1b2/3qr1Bk/3qN1n1/1N2Qq2/BP4b1/RR1RPPbP/2KN2B1 w - - 0 1 illegal: Other
3N1R2/r2nknBP/PRR1p2N/6bK/2P3rP/1b5n/B1qB1r2/1Q1nN3 w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 h5 gxh5 c5 d3 c4 dxc4 b4 c3 a5 cxb4 a4 b3 axb3 Ke2 d5 Kf3 g5 Kg4 e6 h4 b2 f4 d4 a4 d3 a5 d2 f6 Rh7 h6 Qd6 b5 Rh8 f5 Ra7 h7 Qd4+ Kh5 g4 b6 g3 b7 g2 f7+ Kd8 f6 Bh6 f8R+ Kd7 f7 Ke7 Nh3 g1R Nf2 Nd7 b8N Kf6 Ng4+ Ke7 Na3 b1N Bd3 Nc3 Nc2 Qg7 Ne1 Nd5 Bb1 Bg5 Nh6 Qc3 Ba2 Qc2 a6 Rf1 Rb1 Rf2 Rb6 Bb7 Rc8 Bc6 Rf1 Ba4 Rcc6 Bb3 f8B+ Ke8 Ng4 Nh6 Bg7 Nf7 Nh6 Rf8 Ba1 Ke7 Bg7 Rf4 Rf3 Rg4 Rf2 Qc3 Qc2 d1N Qb1 Qc2 Bd2 N5c3 Rd6 Ne2 Nc6+ Ke8 Rf6 Ng1 Nd8 Ke7 Rdc6 Nh3 Rf4 Nfe5 Rf1 Rff4 Rf3 Nf7 Rf1 Rg2 Rf2 Rfg4 Rf3 Rf2 Rf4 Nfe5 Rf8 Nf7
1k1Nb3/6r1/q4RnN/2B1pnn1/R2RP1q1/1qPP2Bn/2P1Q3/K1B3nN w - - 0 1 legal: proof: g4 a5 h3 d5 a3 f5 e3 b5 Ra2 g5 Ra1 c5 Ke2 d4 Kf3 b4 Be2 c4 Kg2 c3 bxc3 b3 Bb2 d3 Bc1 dxe2 gxf5 g4 h4 Bh6 Qe1 Bf4 Qd1 Bg5 hxg5 Ra6 Ra2 Rb6 Ra1 Rb4 axb4 Qd7 Rh6 Qd4 Rh1 Qd8 f4 Kd7 Kf2 Kc7 Ke1 h5 g6 e6 b5 b2 d3 g3 Kd2 e1N b6+ Kb7 f6 a4 f7 h4 f8R h3 f5 g2 g7 h2 f6 a3 f7 a2 Nh3 g1N Nf4 Qd4 Qe2 Nh6 g8N Nf5 Nh6 Ka8 b7+ Ka7 Kd1 Nef3 Nd2 b1Q Ne4 Bd7 Nf2 Nc6 b8B+ Kb7 Rd8 Nce7 f8B Ng6 Bc5 Qb3 e4 Qg7 Be5 Be8 Rd4 Rg8 Bb8 Ng5 Be5 N1f3 Rf1 Ng1 Nh1 Qd7 Nh3 Qg7 Bg3 e5 Nf4 Kb8 Ne6 Qd7 Nd8 Rg7 Rb1 a1Q Rf2 Qa3 Ra1 Qa6 Raa4 Nfh4 Rf6 Qg4 Bcf4 Nf5 Kc1 Qbe6 Kb1 Qeb6+ Ka1 Qb3 Nf2 h1N Bc1 N1h3 Bh4 Nhg3 Nh1 Ne6 Qd2 Ne2 Bg3 Neg1 Qe2 Neg5
4q2B/PnRB1q1P/p2rqRP1/8/RrP1brQB/2Kp3N/5N2/1k1q1N2 w - - 0 1 illegal: No proof kernel
kB1B2Q1/2PPNr1B/2brpP1K/n1r2p2/4RPRn/1N6/N1p5/2br2R1 w - - 0 1 legal: proof: g4 c5 c4 d5 a4 h5 gxh5 b5 axb5 f5 e4 Qd7 e5 Qe6 b4 dxc4 bxc5 Qf6 exf6 Rh6 Bg2 Rh7 Bf1 Rh8 Ke2 Kd8 Kf3 Kc7 Kf4 Kb7 Kg5 a5 f4 g6 d4 a4 h4 a3 d5 a2 c6+ Ka7 h6 c3 d6 c2 c7 Bg7 b6+ Kb7 h5 Bf8 d7 Bg7 h7 Ra3 h6 Rc3 Qg4 Rc4 Rh4 Rc3 Nf3 Bf8 Ba3 Nc6 Nfd2 Rc5 Nb3 Na5 Bc4 Ka8 Nc3 Bb7 Rg1 a1R Na2 Bc6 Bf7 Rd1 b7+ Ka7 b8B+ Ka8 Qg2 Rd6 Rg4 e6 Re1 Rd3 Re4 Ne7 Qg1 Rg8 h8N Rg7 h7 Rd6 Kh6 g5 Bg8 Ng6 Qg2 Nh4 Ng6 Be7 h8R Rf7 Rh7 Bf8+ Rg7 Be7 Bh7 Bf8 Qh3 Be7 Rg1 g4 Qg2 Bf8 Ne7 g3 Qf3 g2 Qg3 Rdd5 Ng6 Bd6 Ne7 Be5 Rg6 Rd6 Rg4 Bb2 Rh1 g1R Rg5 Ra1 Nd5 Rc3 Rg1 Rd1 Qg2 Bb5 Bb4 Rdc6 Be7 Rb6 Bd8 Rd6 Ne7 Rc5 Rg7 Bc6 Qg6 Rf8 Qe8 Bc1 R7g4 Rf7 Qh8 Kb7 Qg8 Ka8
r6q/1Q1B1B2/1n1N1r1k/1KN2nR1/N1pPR2P/1pP1Pp2/5n1B/1R1r2r1 w - - 0 1 legal: proof: h4 d5 b4 a5 e4 axb4 exd5 e5 Rh2 e4 Rh1 e3 fxe3 Qe7 Rh3 Qf6 Rh1 Qd8 Kf2 h5 Ba3 g5 Bc1 g4 Rh2 g3+ Ke1 Be7 Qe2 Bg5 hxg5 h4 Rh1 h3 Qg4 h2 Qd1 Bh3 gxh3 Ra6 Bb2 Ra3 Bc1 Ra8 Ke2 Kf8 Kd3 Kg7 Kc4 f5 d4 c5 a4 f4 d6 f3 h4 b3 a5 g2 a6 b6 d7 b2 a7 Rh7 g6 Nf6 Kb5 c4 Ra5 Ne8 Nd2 b1R+ Nb3 Qe7 d8N Rh8 Ba3 Qd6 Nf7 Qe7 Bd6 Qb7 Ne2 g1N Nc3 Nh3 Na4 Qe4 c3 Nf2 Bh3 Rf8 Bd7 Qc2 Re1 h1R Bh2 Rg1 Nd6 Kh6 g7 Qh7 g8B Qh8 Bf7 Ng7 Qd2 Nf5 Qb2 Rd1 Nbc5 Re8 Qb1 Re6 Qe4 Rf6 Qb7 Na6 Rf1 Nb4 Re1 Nd5 Rf1 Re8 a8R Reg8 Re8 Rf8 Kc6 b5 Re4 b4 Kb5 b3 Re1 Rd2 Rb1 Rdd1 Ra8 Nb6 Rae8 Nd5 R8e5 Nb6 Rd5 Ra8 Rde5 Ng7 Rg5 Nf5
1BBk4/p5bp/B4N2/5N2/3p3P/q1QRqpP1/NPnPRR2/1bbK3q w - - 1 2 illegal: No proof kernel forced: bxDB
4bq2/1qbN2n1/2P1B1P1/BnrNQ1Rn/2P2PN1/krBr4/3R4/KRn2n2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Kd2 e5 Kc3 Ke7 f4 h5 b4 a5 Kb2 d5 c4 e4 g4 d4 b6 d3 g5 a4 g6 d2 b7 e3 b5 h3 b6 a3+ Ka2 h4 c6 Kd6 f6 Kc5 f7 Kb4 Rh2 e2 Rf2 e1N Bb2 h2 Qg4 h1N Qe2 d1R Qe4 h3 Rc2 h2 Be5 Nf6 Bh3 Rh5 Bf1 Na6 b8R Nc7 b7 Bd6 f8B Nfe8 Nf3 Bd7 Beg7 Ng3 Bh6 h1N Ne5 Nd3 Bg5 Ng7 Bh3 Nf1 Bf6 Nhg3 Nc3 Nc1+ Kb1 Ra7 Be6 Rd3 Ng4 a2+ Kb2 Qe7 Rd2 Be8 Rb1 Ra3 Ra8 Rf5 b8N N3h5 Ra5 Qf7 B8e7 Qf8 Bd8 Re5 Rd5 Rg5 Nd7 Rf5 Rd4 Rc5 Rd5 Be5 Qd4 Bd6 Rg5 Be5 Nd1 Ka4 Nde3 a1Q+ Kc2 Bd6 Nd5 Be5 Qe4 Bd6 Bc3 Qb2+ Kd1 Qb8 Kc2 Qb7 Qe5 Nb5 Kb2 Rb3+ Ka1 Ka3 Bda5 Bc7
2qn2n1/b1Rr2BR/bK1P2P1/1b1BP1nN/P2r3k/r2qQ1n1/N7/N1B2R2 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 Ke3 b5 Kd4 f5 Kc5 h5 d4 h4 g4 f4 e4 b3 a3 f3 e6 b2 g6 Kf6+ d6 h3 e7 h2 e8R f2 d5 b4 g7 b3 Bh3 f1B Bf4 Bb5 Nd2 b1N Qe2 b2 Bg2 Nc3 Rf1 b1R Nb3 Bca6 Na1 Rb4 Re7 Nc6 d7 Rd4 Qe3 Rh7 e5+ Kg6 g5 Kh5 g6 Kh4 Be4 Qc8 Ne2 Nd8 Nc1 c6 Bf3 Ne4+ Kb6 c5 Bh6 c4 Na2 c3 Bg2 c2 a4 c1Q Ref7 Bd6 Re7 Bb8 d6 Ng5 Bd5 Qa3 Ref7 Nf6 g8N Qd3 Bg7 Ra7 Re7 Rc7 Rf7 Rc3 Re7 Ng4 Nf6 Nh6 Nh5 Ng8 Ref7 Nb7 d8B Ra3 Bdf6 Nd8 Bh6 Rg7 Rc7 Rd7 Bfg7 Nf6 Rf5 Ng8 Rhf1 h1N Rf8 Nf6 Rh8 Ng3 Rh7 Ng8 Qg1 Nge6 Bc1 Ng5 Qe3 Ba7+
rq2Rb1N/N2R3B/2KP2PP/R1Brr3/1b2qn1Q/1b1n4/2bB1qP1/5k1N w - - 0 1 illegal: No proof kernel
Kn3R1R/q3PPr1/4qNrB/2n4r/2b1BN2/b1R2n1P/Q1PBq3/4Nr1k w - - 0 1 illegal: No proof kernel
2n3n1/qP1r1q2/5bRB/n1n3Rq/bkb2r2/N2P1P1B/K2P3Q/N2N1RB1 w - - 0 1 legal: proof: e4 b5 a4 d5 axb5 f5 exf5 g5 h3 d4 h4 d3 cxd3 gxh4 g4 Kd7 b4 Kd6 g5 a5 g6 h5 g7 c5 f6 e5 f7 a4 b6 e4 b5 c4 b7 Kc5 b6 a3 Qc2 e3 Kd1 a2 Nh3 c3 Qa4 e2+ Kc2 e1Q Kb3 c2 Qf4 Qf6 Qa4 Bd7 Rg1 Nc6 b8N Qe3 b7 Nce7 Qf4 Ba4+ Ka3 Nc8 Qh2 Rh7 Nc3 Be7 f8B Qf7 Nf4 h3 Rg4 h4 Bb2 c1N Ng2 Nb3 Nb5 Na5 Rg6 Ra7 Re1 a1N Nc6 N1b3 Ka2 Ra6 Ncd4 Rf6 Rd1 Rf4 Na3 Kb4 Rg5 Nc5+ Nb3 Qd4 Ne3 Bd8 Re1 Bf6 Nd1 Qe3 Bg2 Qd4 Rf1 Qe3 Qg1 h2 Bh3 h1B Bd4 Bd5 f3 Bc4 Qh2 Qg1 Bg2 h3 Rg6 Nge7 g8R Qe3 R8g7 Ng8 Rg5 Qf2 R7g6 Qg1 Bh6 Rg7 Qg3 h2 Bh3 h1Q Qf2 Qd5 Qe2 Rd7 Qh2 Qf7 Bf2 Qg4 Be3 Qh5 Bg1 Qg2 Kb1 Qf2 Na1 Ncb3 Ka2 Qd4 Rd5 Qa7 Rdg5 Nc5+
Nb4R1/B3PN2/4bb1R/1Q1br1r1/q2r4/1P1n1P2/nR1P1kqB/NB1K2r1 w - - 0 1 illegal: No proof kernel
5bK1/n6B/1kNn3N/1P1pN1n1/P2RrbB1/Bb1R1qP1/3q2P1/rRr4Q w - - 0 1 illegal: No proof kernel
2rnn1q1/nqNN2Rb/1b2P1br/k3B1PN/r3P3/3BPp2/Q1R1K1RB/8 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1NR2N/1N3PPr/1B1K1P2/n3b3/2q3B1/1bP2q1p/1rkBR1bn/r1q4R w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 f4 e5 b4 h5 g4 a5 f6 Ke6 f5+ Kd6 c3 a4 b6 h4 f7 a3 g6 a2 b5 Kc5 f6 h3 g7 Rh7 g5 Nh6 g8R Ng4 b7 Nh2 g6 Qc7 g7 Nc6 b8B Na5 b6 Bb7 Ba7 Rb8 Bd2 Kb5 Qc2 Bc5 Qb2+ Ka4 Ne2 Qc8 Nf4 e4+ Ke2 e3 Kd3 e2 Na3 e1Q Ng6 Qc6 Be2 Qc1 Nc4 Qb5 Rb1 a1R Bg4 Qb4 Nd6 Qb3 Ke2 Qc4+ Kf2 d3+ Kg3 d4 Kf4 Ba8 Ke5 Bg2 b7 Bb6 Re8 Bc5 Bg5 d2 Bb6 d1B Nh8 d3 Bd2 Bb3 Re1 Bg1 Re2 Bf2 Ne4 Bd4+ Kd6 Qf1 Rd1 Qf3 Qb1 Ka3 Rh1 Ka4 Nc5+ Ka3 Qe1 Kb2 Qg3 Kc2 Qe5 Ra8 b8N Ra6 Be3+ d2 Nc6 Rb1 Bh6 Rb2 Nd8 Ra8 Ncb7 Ra6 Ree1 d1Q Bd2 Qc1 Re4 Nc6 Re2 Ra1 Qe6 Na5 Qc8 Qe4 Qc7 Qf3 Qb8 Be5+
B2B4/2r1Q2N/1rP2P2/bkrbP3/n1rKR1N1/1Bp1nP2/N4qb1/4RrR1 w - - 0 1 illegal: No possible last move, all moves rejected
n3b3/QNP5/P1rprn1B/NR1BP1nP/R2B1r1k/1K4b1/2bR1q2/4N2b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 Ke7 c4 f5 Kc2 b5 h4 g5 e4 g4 a4 b3+ Kb2 b4 c6 g3 c7 g2 e6 Kf6 a5 f4 c5 f3 h6 f2 c6 Bb7 c8R Qb6 h7 Na6 e7 Nc7 h5 Ra6 Bc4 f1R Qc2 Na8 c7 Qf2 Rb8 Re6 Nd2 Kg5 e8N Nf6 a6 Bd6 Rh2 Bg3 Nd6 Rg8 h8B Rg6 Ra3 Kg4 Ngf3 g1N Ra1 Nh3 Bd5 Ng5 Ne1 Rh6 Rg2 Kh4 Ra4 Bc6 Nb7 Bb5 Kb1 b2 Ka2 b1B+ Kb3 Rc6 Qb2 d6 Nc4 Rg6 Nca5 Bc2+ Ka2 Rh6 Qd4 b3+ Kb2 Rg6 Qa7 Rh6 Ka3 b2 Bg7 b1B e5+ Qd4 Bb2 Rf4 Rd2 Qf2 Bd4 Be4 Bf8 Bh1 Kb3 Bg6 Bg7 Be8 Bf8 Rg6 Bh6 Bd3 Nc5 Bb1 Rb5 Bd3 Ncb7 Bc2+ Ka2 Nfh7 Ka3 Re6 Kb2 Nf6 Ka3 Bce4 Kb3 Bc2+
NbRb3q/1PrQPbb1/K5k1/b3BN2/2P3Pp/N6q/n2r1B2/Rn1B2R1 w - - 0 1 illegal: No proof kernel
RQB2r2/BP1pkb2/2b5/Kr2B1NP/NN1P4/3P2R1/R1rrqqr1/1n3n2 w - - 0 1 legal: proof: g4 b5 f4 h5 gxh5 e5 a4 exf4 axb5 Bc5 c3 Bd4 cxd4 Qe7 Ra3 Qg5 Ra1 Qd8 h4 g5 b4 c5 e4 a5 h6 f5 e5 a4 b6 g4 b5 g3 h7 c4 h5 g2 b7 a3 e6 c3 b6 a2 e7 f3 Ba6 c2 Rh4 f4 Rh1 f2+ Ke2 f1B+ Ke1 f3 Qe2 Nh6 Bd3 Na6 b8B Nb4 Be4 Bb7 Ba7 Rb8 Nh3 g1R Nc3 Bc6 Na4 Nf5 Qh2 Rf8 h8R Rg2 Ng5 Ng3 Rg1 Bc4 d3 f2+ Kd2 f1Q+ Kc3 Qe2 Bf4 Nf1 Be5 Bf7 Bd5 c1R+ Kb3 Rf2 Rg3 Rc2 Bc4 Nd5 Ba6 Rg2 Bc8 Nc3+ Kb4 Rb7 Ka5 Nb1 Rg8 Rc7 b7 Rd2 Rg6 Bb5 Ra6 Rcc2+ Bb6 Qc7 Ra8 Qb8 Ba7 Bc6 Qh3 Qd6 Qe6 Qa3 Qd6 Qc1 Qb8 Qce1 Nc5 Q1f2 Na4 Bb3 Ne4 Kf7 e8N Ke7 Nc7 Bf7 Na6 Na3 Re1 a1R Ng5 Rb1 Nb4 Rb3 Ra1 Nb1 Ra2 Rbb2 Na6 Rb6 Nb4 Rb5+
2b2BrR/1pP2P2/R2N2n1/QK2br2/Rq1P3b/1B1PqB2/2b1Nn2/1b1k2N1 w - - 0 1 illegal: No proof kernel
1Q2q3/3K1bq1/n1Pb3n/1r1R2P1/PNqN3R/6n1/2BP1pRB/2rBk1Nn w - - 0 1 illegal: No proof kernel
3rBR2/1b2b2b/1P2qp1P/3R2n1/4k1P1/NN2nnrB/PQK3N1/bRB1q3 w - - 0 1 illegal: No proof kernel
rNkn1R2/1q5P/1n3rB1/2bqr3/1K2PRr1/N1B2PPQ/2bpN2n/1B3R2 w - - 0 1 illegal: No proof kernel
3K2B1/5Pr1/1N1q1n2/1r1N1RB1/3B1R1P/2NQ2Pp/Rr1b2P1/qnkb1rn1 w - - 0 1 illegal: No proof kernel
1Nrr2n1/n1kpq3/b1B5/PRP2QBr/2Bn1Rnq/4KR1P/6PN/2N1b3 w - - 0 1 illegal: No proof kernel
R2rRNKB/np2q1P1/1N1nbRB1/P4b2/P1r2P2/bk3r1B/2b3Qq/5N2 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 d4 cxd4 h4 Qc7 hxg5 Qd8 Kd2 Kf7 Kd3 d5 g4 e5 f4 h5 g6+ Ke7 g7 Kd6 f6 Kc5 g5 Kb4 f7 h4 g6 h3 Nd2 h2 Bb2 Rh3+ Qf3 Nf6 g8B Qe7 Bh7 Nc6 Ne2 Be6 Ng3 Rd8 Nc4 Ne4 Nb6 Na7 Qg2 Nd6 Rg1 h1B a4 Qh4 c4 Kb3 c5 Qe7 c6 e4+ Kd2 d3 Ke3 d2 Kd4 d1B Ke5 e3 c7 e2 c8R d4 Ra8 Bc2 Re1 d3 Bc3 Qd7 Kf6 d2 Bd4 Be7+ Kg7 d1R f8N Rc1 Bb2 Bef5 Kg8 Qc8 Bh8 Qc3 g7 Qb2 Rd1 e1Q Bg6 Qb4 Re1 Qa2 Nh5 Rf3 Re6 Qe1 Rf6 Qh4 Ng3 Qh2 Qe2 Qa3 Bh3 Bg2 Qd2 Bf1 Qg2 Bc4+ Rf7 Bce6 Re1 Bce4 Nf1 Rc4 Re2 Bc2 Re5 Bf6 Re1 Bb2 Re2 Qc5 Re5 Ba3 Re4 Bd7 Re8 Qe5 Rf6 Qe7 Qd2 Bc8 Qg2 Bce6+
N1k1n1q1/Pb1nBpR1/KB4nr/1B1P2bn/3P1Rq1/4P1R1/4QN2/3b1rN1 w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h4 Kd7 d4 b5 Kd2 c5 Kd3 g5 a4 b3 h6 g4 e3 c4+ Kc3 b2 a5 g3 h7 g2 h5 Bh6 Kb4 c3 a6 c2 Bc4 Ne7 Nc3 b1N Bd2 c1N Rh4 Na3 Ne4 Ng6 Qe2 Bg5 h6 Bb7 e6+ Kc8 e7 Qg8 Ka5 b4 e8N b3 Bb5 b2 Nf2 b1B Nc7 Nd7 Rf4 Bc2 a7 Bd1 Rb1 Rb8 Na8 Bc6 Ka6 Nd3 Ba5 Nc4 Bb6 Nd6 Rc1 Ba4 Rf1 Ne8 Rf3 Ndf4 Rg3 Ne6 Nfh3 Bd1 Rf4 N6g7 Nf2 Nh5 Qc2 Qg7 Qe2 Rf8 h8R Qg8 Rh7 Rb7 Ngh3 g1Q Rg7 Qg2 h7 Qf3 h8B Qg4 Ng1 Rc7 Ba4 Rb7 Ba5 Rb1 Bb5 Bb3 Rh7 Rf1 Bf6 Bd1 Bb6 Qg7 Qa2 Rh8 Qe2 Qg8 Rg7 Rh6 Be7 Bb7+
R1r5/3p1PKN/2NPn2P/B1q2Bb1/1b1bN2q/qP5Q/nkb1R2b/5BR1 w - - 0 1 illegal: No possible last move
q1r2qK1/1n6/pqkNPR2/Pq3PNR/3bn3/1BB2B1N/1q1P3n/rRQ5 w - - 0 1 illegal: No possible last move, all moves rejected
1b2R2b/Bp1n3P/1P1n3n/1n1PN1P1/b1n2RB1/4k1B1/Kb1RN3/1N2r1qQ w - - 0 1 illegal: No proof kernel
rBqNB3/3R3K/bp2n3/1QR5/2bbqNbB/b1PPRP2/1P1b2N1/5nk1 w - - 0 1 illegal: No proof kernel
1RB3kb/3b1rn1/Rr1p1nPB/3nN1K1/2PP2bN/2pQ4/3RNq1P/6rB w - - 0 1 illegal: No proof kernel
1q4N1/1qPB2np/P1P5/3r1r1k/B3nPR1/pR2BK2/qNnb2R1/1Q1b2N1 w - - 0 1 illegal: No possible last move, all moves rejected
1BQb4/bNR5/q1Nr1P2/pR2pr2/P2PBNkP/3r1n2/n1R1KBb1/3b4 w - - 0 1 illegal: No possible last move, all moves rejected
3K1b2/Qb1N1Bk1/n2BPN1p/2rr1bBR/1b2pP1R/PN1r4/2P3R1/2n2q2 w - - 0 1 illegal: No proof kernel
n7/qNprQ2q/RBp3kN/1rB3n1/1P2Nb2/3RbBPK/2P2P2/r3rR2 w - - 0 1 illegal: No proof kernel
1qRNq2N/P6k/KBn1P3/q2p4/1r2Nqbb/1R1P2RB/r3npP1/3B1Q2 w - - 0 1 illegal: No possible last move, all moves rejected
1n6/1k1p4/RB1P2r1/1r4b1/P1P2P2/1Bp1N2n/n2Qbr1R/Kb1NNBRr w - - 0 1 illegal: No proof kernel
rBBk3b/R4B2/1K1b1P1r/pn3rn1/4R3/4pQ2/PPbPN2N/nN2Rn2 w - - 0 1 illegal: No proof kernel forced: bxDB
1r4q1/2rp2B1/2rR1pP1/RqBn2b1/1P1K3P/R1p1NP1B/N4k2/2NQbn2 w - - 0 1 illegal: No proof kernel
B4N1Q/Kr3bpB/6r1/1Pq1R1qq/1np2Bp1/P2P1kP1/1N1R3r/4n1RN w - - 0 1 illegal: No possible last move, all moves rejected
2Rr1Qb1/2P2BN1/1k1P2Pq/2p1b3/2P4B/r1pNr2K/1p3RqB/2R1Nn1r w - - 0 1 illegal: No possible last move
5Qr1/B1q1p2R/P4n2/BNNKR3/pbp5/1qP3P1/P4bB1/b1kN1Rbr w - - 0 2 illegal: No proof kernel
1B3bkb/rNR5/R1nqP1Br/R2q3p/3N4/1pKp1P1P/3P1Q1b/bB4N1 w - - 0 2 illegal: No possible last move, all moves rejected
1q1k1q1R/RQpq2P1/1rP1bP2/N4p2/1p3P2/4N1K1/RqBrB1nN/2B4q w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 f5 g5 Be7 h3 Nc6 h4 Nd4 Bb2 Ne6 Bc1 Bf6 gxf6 g5 Qd6 g4 Qd1 Ng5 hxg5 Ra7 Bf4 Ra4 Bc1 Ra8 a4 h5 c4 d5 e4 b5 f4 h4 Kf2 d4 c5 b3 a5 b4 a6 h3 e6 d3 a7 b2 g6 h2 e5 d2 e7 Qd6 g7 Rh3 Qf3 d1Q Ra2 Qb6 Na3 b1Q Be2 Qa4 Nc2 Qb8 Ne3 Qd7 Qb7 Qb2 Nf3 Nh6 c6 Rh5 Kg3 Rg5 Bd1 Rh5 Bc2 Rh4 Rd1 h1Q Nh2 Rh5 Rd5 Rg5 Rda5 Rg6 Kh4 g3 Kh3 g2 Kh4 Ng4 Kg3 Kf7 e8R Rh6 Rh8 g1Q+ Ng2 Qc5 Ne3 Qf8 e6+ Ke8 e7 Ne5 Ra6 Nf3 R6a3 Ne1 Ra5 Ng2 R5a3 Kf7 e8B+ Ke6 Bh5 Rg6+ Kf2 Kf7 Be2 Ke8 Kf3 Rh6 Kg3 Kd8 Ra4 Qe7 Ra6 Be6 R6a3 Qd7 Ra5 Qbc8 Ra6 Rb8 a8N Rh7 Nb6 Rh6 Nbc4 Rh7 Qb5 Rb6 Na5 Qb8 Ra7 Rh6 Nhg4 Rh2 Qa6 Ne1 Qb7 Rf2 Nh2 Ng2 Ba6 Rd2 Bf1 Qe5 Be2 Qb2
Rb4K1/3NN3/3pkPbq/B3P1nr/1P1B1p2/3P1N2/bprB2p1/1R2R1nQ w - - 0 1 illegal: No proof kernel
q7/2N1RPQp/5P1b/qRBpb2R/6P1/1p1P2rN/1r1p1NK1/nkBn3B w - - 0 1 illegal: No proof kernel
2nR4/1r2Bpq1/K1pb1P2/8/2P2N1p/PNRbqP2/1Rp2N1k/1QB1qr1B w - - 0 2 legal: proof: c4 a5 f4 g5 b4 d5 bxa5 g4 Qc2 d4 Qc3 dxc3 h3 Nc6 hxg4 Ne5 g5 Nf3+ exf3 Qd7 Kf2 Qd6 Ke1 Qd8 d4 Kd7 g4 Ke6 a6 h5 f5+ Kd6 a7 e5 g6 b5 a3 h4 f6 c6 g7 b4 g5 b3 g6 b2 d5 e4 Ra2 Ke5 d6 e3 d7 Kf4 Nh3+ Kg3 Bg2 e2 Nd2 b1Q Nf4 Bc5 Nb3 Qe7 d8B Qc7 Rb2 Bd7 Be7 Re8 a8R Qa2 Rd8 Bf5 Rh2 Bb4 Bh1 Bd3 Rc2 Nh6 g8Q Qb6 g7 Qe3 Qh7 Bd6 g8N Nf5 Nh6 Rhg8 Ng4 Rg7 Rd7 Rb8 Rd8 Rb7 Nf2 Rg4 Bf8 Ne7 Qe4 Nc8 Be7 Rg8 Qf5 Qb1 Qb5 Bh7 Rb2 Qg6 Qf5 Qe5 Qb1 c2 Kd2 Qeg5 Kc3 Qg7 Kd4 Bd3 Kc3 e1Q+ Kd4 Be5+ Kc5 Bh7 Rd3 Bg6 Rc3 Bd3 Ng4 Rd8 Rd2 Q5h6 Nf2 Kh2 Rd1 Rd4 Nd5 Rg4 Nf4 Rg1 Rd2 Rf1 Rd1 Nb6 Kb4 Bc7 Ka5 Nc8+ Ka6 Bd6 Rd2 Qhg5 Rd1 Qc5 Rd2 Qce3 Rd1 Bg6 Rd4 Bd3 Rd5 Bc5 Rd8 Bd6
1B4N1/1p1p1rp1/1RnP1n2/3N4/1bRpknpr/qP4PB/2NBK1P1/1Q1R4 w - - 0 3 illegal: Other
1r1BN3/b1RR4/R1P1B1rr/n1pn4/1pq2P2/Q1PNK3/NPqr1B2/kq1b4 w - - 0 1 illegal: No proof kernel
1B1rn2k/1Nb1qP2/bn1pN1p1/3N4/2BKbRPB/1Q1Pn3/1RP5/q2rR1b1 w - - 0 1 illegal: No proof kernel
3Bk2b/n3ppbN/B3Rr1P/4r1R1/1rQn2PR/N3pP2/4PB2/1nKq2Nb w - - 0 1 illegal: No proof kernel
RN2B3/1P1p1p2/1R1PbP2/1qqn1p2/1b1N3k/n2BBP2/2rKN3/1QrR2nq w - - 1 2 illegal: No proof kernel
N3q1R1/R1Kp1RNr/bn1PBn1k/N1Pp2rp/7P/2P1b1B1/1Q5B/1b3rb1 w - - 0 1 illegal: No proof kernel
Nb2q2B/NPR1R1P1/2b1BppQ/1rR3n1/1Nnk1K1B/b3p1P1/n2nP3/1r6 w - - 0 1 illegal: No proof kernel
2n1b2K/RB1Q3n/1R1p4/2R1rn2/bp2p2B/3PPPq1/1BNbk1NP/1nr4N w - - 0 1 illegal: No proof kernel
4Rrn1/NkqPBB1p/N1b3P1/q2pn2P/2b1N1Rp/b2R4/B2Pp3/1Kr2Q2 w - - 0 1 illegal: No proof kernel
2qN1QR1/NB3pbB/npB2Npp/1rnbRRPq/8/K1b3P1/1P3P1k/3r4 w - - 1 3 illegal: No proof kernel
1q2Q1rb/3p1nqk/1Rb1rbp1/4n1R1/PpPN2R1/pN1P4/6PN/2KBB2B w - - 0 1 illegal: Other
1n1Nr1R1/kB1P2RN/p3bn2/P2B2pP/3p3K/nq2r1B1/p2P1n2/2b1RN1Q w - - 0 1 illegal: No possible last move, all moves rejected
nK4BN/1QrB1ppp/R2p3q/3bPpP1/1BRb2N1/r3nk2/RP1P4/Nn6 w - - 0 1 illegal: Other
n1rn1BR1/3p2pN/1ppb1PRQ/k1NR4/B2p4/4Pq2/1PPNr3/1r1bBK2 w - - 0 1 illegal: No proof kernel
2R1Kn2/qp2brrp/bPNqp1r1/NQ3pR1/p4P2/B3P1Nk/PR2n3/1BB5 w - - 0 1 legal: proof: h4 d5 c4 g5 cxd5 gxh4 g4 Kd7 f4 a5 Kf2 c5 Kf3 f6 Ke4 h3 Kf5 h2 b4 a4 d4 c4 b5 c3 g5 c2 g6 Qc7 b6 Qd8 g7 Ra6 e3 Ra8 d6 Nc6 d5 Ra5 Ne2 Nd4+ Ke4 e6 Nd2 Be7 Rg1 h1R Ng3 Rh6 Qh5 Ne2 Rb1 Rg6 Rb2 Rc5 Nb3 Rc7 Na5 f5+ Ke5 Nf6 g8N Ke8 d7+ Kf7 d6 Qf8 d8B Bd7 Bg2 Bb5 d7 Ba6 Be4 Qe8 Qh2 Rg7 Qf2 Kg6 Qe1 Rf7 Qb4 Rg7 Qb5 Qf8 Bd2 c1Q Bb1 Qc4 Bc1 Qb4 Nh6 Rf7 Ng4 Rg8 Rg2 Rgg7 Rg1 Rc8 Bc7 Qh8 Bd6 Rcg8 d8R Qd2 Rc8 Qd1 Ne4 Kh5 Ng3+ Kh4 Ba3 Qd2 Nf2 Qd7 Nd3 Kh3 Nb4 Rg6 Nbc6 R8g7 Nf1 Qd3 Rg5 Qe8 Ng3 Qg8 Rc7 Qa8 Rc8 Qa7 Nd4 Bd8 Kd6 Be7+ Kc7 Nd7 Ndc6 Bc5 Kd8 Nf8+ Ke8 Be7 Qd5 Qd2 Qb5 Qd6
K4q2/4kb1R/1P1r4/PN1B1P2/1R1pBQ1q/1PRNQ2q/1q1N3b/q7 w - - 0 1 legal: proof: e4 a5 c4 c5 g4 f5 exf5 h5 gxh5 b5 cxb5 a4 b4 Ra5 bxa5 Nf6 d4 Nc6 d5 Ne4 dxc6 Nd2 Bb2 Nb3 axb3 Qc7 Be5 Qb8 Bc7 Qb6 Bd8 Qxd8 f6 e5 Ke2 g5 Kf3 d5 h4 d4 Ke4 a3 f4 c4 f7+ Ke7 b6 g4 c7 a2 h6 g3 h7 g2 h5 c3 h6 c2 Ne2 g1Q Qd3 c1Q Nd2 Qe1 Bg2 Qe8 Kd5 e4 Nc3 Qd8+ Kc6 e3 Be4 e2 Rh3 Qef1 Nb5 Bg4 Kb7 e1Q c8B Qeg3 Be6 Rg8 h8N Rg6 h7 Q3f2 B6d5 Re6 Ng6+ Kf6 h8R Qh4 Ne5 Bd6 Rh7 Bh5 f5 Qf3 f8Q+ Bf7 Qh6+ Ke7 Rc1 Qe8 Rc4 Qf8 Rb4 Qc1 Rg3 Bb8 Ka8 a1Q Qf1 Qfh1 Rc3 Qcb2 Qe3 Q1h3 Nd3 Be5+ Kb7 Bg3 Qff4 Rd6 Ka7 Bh2 Kb7 Ke8 Ka8 Ke7+
nN3Qr1/2Bn4/2RqN3/3P1n1P/2pbP1Q1/n1BnR1rB/6P1/K1kN4 w - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 a4 d5 cxd5 b5 axb5 Bg4 Nf3 Bf5 Ng1 Bc8 bxa5 g5 h3 g4 hxg4 Bf5 Ra3 Be6 Ra1 Bc8 Na3 h5 Nb1 h4 Qa4 Bf5 Qc2 Bg6 Qd1 Bh5 gxh5 Bh6 Nf3 Bg7 Ng1 Bf8 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb2 f5 e4 h3 b6 h2 b7 f3 a6 f2 a7 c4 Nh3 f4 Nd2 f3 Nb1 Nf6 Be2 f1N Nf2 Ne8 Bg5 Bg7 Na3 Ng3 Re1 h1N Bf6 Nf5 Nc2 Nd7 b8N Rg8 Ra6+ Qb6+ Ka1 Nc7 Bh4 Be5 Bf6 Rg3 Bh8 Ke7 d6+ Ke6 Bf6 Qc5 Rc6 Qd5 Ng4 f2 Nge3 f1N Bg4 Nd2 Bh3 Nf2 Qg4 Nb1 Nd1 Nd3 Re3 Na3 Bh8 Nb6 d7+ Qd6 d8B Nd7 Ka2 Bf6 d5+ Ke5 Nd4 Bg7 Ne6 Bf6 Nf4 Kd4 Ka1 Bg7 Nf2 Kc3 Ne6 Bf6 Nd1+ Kd2+ Nc3 Bh4 Nd1 Kc1 Bd4 Bf6 Bc3 Ncb5 Bc7 Bd4 Na6 Rg8 a8Q Na7 Qd8 Nc8 Nb8 Ncb6 Qf8 Na8
Qr1N1K1k/2q2P1P/1pQ4B/4P1R1/1r1NP3/1b1n1NR1/b1bq3Q/2B3b1 w - - 0 1 legal: proof: f4 c5 c4 e5 b4 d5 cxd5 f5 Qc2 a6 fxe5 c4 g4 f4 Qxh7 c3 Bg2 c2 Be4 Nc6 Bd3 Na5 Bb5+ axb5 Bb2 c1N bxa5 Nb3 Ba3 Nd4 Bc1 Nf5 gxf5 Bc5 Qh6 Be7 Qh7 Bf8 Kf2 Kf7 Kf3 b6 Kg4 f3 Kh5 b4 h4 f2 a4 f1B e4 b3 d4 b2 f6 Rb8 d6 Bd7 a6 Rc8 a5 Be8 d7 Qe7 d8B Qd7 d5 Rc3 a7 Rh3 a8Q Bb5 a6 Bd3 a7 Qc7 d6 Bc2 d7 Nh6 Nf3 Ng4 Ra3 Nf2 Nbd2 b1B Qc6 Ba2 a8Q Nd3 Nb3 Bc5 Rg1 Be3 Rg5 Bg1 Nbd4 Bcb3 Qh6 Kg8+ Kg4 Rh2 Kf5 Rb2 h5 Bc2 Be7 Rb4 d8N Bef7 Bf8 Bfe6+ Kg6 Beb3 Rg2 Rh7 f7+ Kh8 Kf5 g5 Kf6 g4 Qf4 g3 h6 Qc8 Ke7 Qc7+ Ke8 Rg7 h7 Rg5 Bh6 Rg6 Rh2 g2 Rh5 Rg7 Qh2 Rg5 Qd7 Rg8+ Ke7 Rf8 Rg5 Rg8 N8e6 Rb8 Nd8 Bf2 Kf8 g1Q Qdc6 Qg2 Ra5 Bg1 Rd5 Rb5 Rd6 Rb4 Rdg6 Qd2 Rg3 Be6 R6g5 Beb3
1Q1b2N1/bP3K2/1NPr4/R1n1n2Q/4b3/1B1P1q2/pP1Bbq1N/1R4Bk w - - 0 1 illegal: No possible last move
5R2/2B2BR1/QPr1Q2r/1rP2P1P/b2p3k/1bN1Nr2/q1p1b2K/1N5R w - - 0 1 legal: proof: h4 f5 e4 b5 exf5 h5 a4 g5 axb5 gxh4 g3 h3 Nf3 h4 Qe2 h2 Nd4 h3 Qd1 Bg7 Ne2 Bf6 Ng1 Bh4 gxh4 Na6 b4 Rb8 c4 Ra8 b6 Nb8 b5 Nc6 b7 Nd4 b6 Kf8 Ne2 Kf7 Ng1 Ke8 Be2 c5 Bf1 Nb5 cxb5 c4 d4 Nf6 Qe2 Ne4 Qd1 Nc5 dxc5 Rh6 Ra2 Rh7 Ra1 Rh8 b8R Kf7 f4 Kf6 Kf2 d5 Kg3 e5 h5 a5 b7 d4 b6 c3 Nd2 a4 Qg4 e4 Qg8 c2 Bb5 a3 Nb1 a2 Nc3 e3 Bc4 e2 Nf3 e1R Nd2 Qd5 Ndb1 Be6 Rf8+ Bf7 b8N Ra5 Na6 Re6 Nc7 Rc6 Rg1 h1B Kh2 Bf3 Rg7 Rh6 Be3 Be2 Bf2 Rb5 Bg3 Ke7 f6+ Kd7 Na8 Ke6 Nc7+ Kf5 Bb3 Be6 f7 Kf6 f5 Qc4 Kg1 h2+ Kg2 h1B+ Kh2 Bhd5 Bf4 Bd7 Bd6 Rg6 Bg3 B5e6 N7d5+ Kg5 Bc7 Kh4 Ne3 Bd5 Rc8 Be8 f8Q Rh6 Qe6 Qa4 Qff7 Bd7 Rf8 Qa6 Ba4 Bb3 Qfe8 Qa5 Qc8 Qa7 Qa6 Be8 Nd2 Bd7 Rag1 a1R Rh1 Rf1 Ndb1 Rf3 Qf7 Ba2 Bb3 Qa8 Bd5 Bb3 Qg6 Be8 Bf7 Bd7 Qe6 Qa7 Qc8 Qa2 Qa6 Ba4 Qe5 Be6 Qd6 Bd5 Qe6 Bdb3
B1Q4q/2b4p/1KPk1rB1/2Rbn2p/b2B1R2/2NNP1P1/1NQP1p2/2b5 w - - 0 1 legal: proof: h4 a5 b4 d5 bxa5 e5 f4 c5 fxe5 g6 a4 b6 c4 Nc6 cxd5 Rb8 h5 gxh5 Na3 Na7 Nb1 Nb5 axb5 Rb7 Bb2 Rc7 Bc1 Rc6 bxc6 b5 Kf2 Ke7 Ke3 f5 e6 b4 g3 c4 Kd4 c3 Kc5 c2 e3 b3 a6 f4 d6+ Ke8 a7 f3 a8B f2 e7 b2 d7+ Kf7 Nc3 Ke6 Nh3 b1B Bd3 Ke5 Bg6 Qc7 d8Q Nh6 Bb2 c1B Ra5 Bc2 Nf4 Nf7 Rh4 Be6 Qc8 Ba4 Qc2 Qb8 Rb5 Bh6 e8N Bd5 Nd6 Rf8 Ra5 Bg5 Rg4 Bd8 Ba1 Bc7 Nd3+ Kf6 Rc4 Ke7 Rf4 Ne5 Nc4 Qb2 Rb5 Bb8 Kb6 Rf5 Kc5 Rf6 Kb6 Qb3 Ncb2 Kd6 Ne1 Qc4 Rc5 Qf1 Ned3 Qh3 Qa6 Qc8 Qb7 Qg8 Qc8 Qh8 Nb5+ Ke7 Nd1 Bg8 Bd4 Bd5 Nbc3 Kd6 N1b2 Bc7+
rr3q2/7q/n2B2RB/2RnN1R1/PQ2B3/1n1PkqP1/bP2r3/Q1K1b2N w - - 0 1 legal: proof: e4 d5 h4 f5 exf5 g5 c4 gxh4 cxd5 a6 Bxa6 b5 a4 Be6 Bxb5+ Bd7 Bf1 Bc8 f4 Kd7 d6 Kc6 d3 Kd5 Kd2 Kd4 g3 e5 d7 h5 f6 c5 f5 h3 f7 h4 f6 e4 Be2 c4 Rh2 c3+ Kc2 e3 Bf3 e2 Be4 e1R Na3 Na6 Nc4 Bb4 f8Q Ne7 f7 Re2+ Kb1 Qe8 d8R+ Bd7 Rb8 Be6 Rb6 Qd8 Rf2 h2 Ne5 h1Q Rf5 Qf3 Nh3 Qe8 Nf2 h3 Rc6 h2 Rd6+ Bd5 Rg6 h1Q Bf4 Qh3 Nh1 Qh7 Bh6 Qb8 Rfg5 Ke3 Ra3 Bc4 Qf1 Nd5 Qd6 Qd8 f8B Qdf6 Be7 Rhb8 Rb3 Ba5 Rb5 Qf8 Qa3 Bb4 Bd6 Bb3 Rc5 c2+ Ka1 c1N Kb1 Bd2 Qb4 Ba2+ Kc2 Nb3 Qa1 Be1+ Kd1 Nd4 Kc1 Nb3+
B7/P4q2/1qNkN2B/b2Nr1rK/Q1PPP2b/1b3QR1/2n3qr/nR5B w - - 0 1 illegal: No possible last move, all moves rejected
4r3/brNQ1KNP/6P1/3NBQ2/1rR1r1q1/1n1nPBP1/kb4Rn/2b2R2 w - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 g4 axb5 g3 c4 Bd6 b6 Ne7 b7 Ng8 fxg3 Qg5 g4 Qd8 g5 Bf8 g3 h5 b5 h4 Qd5 d6 Qg2 Bd7 b6 Bb5 cxb5 h3 Ra3 hxg2 Ra6 Nd7 Ra1 Nb8 Kd2 Kd7 Ke3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 Kb3 e6 c5 g6 a5 h5 a4 e7 a3 e8Q c4 h6 d5 h7 a2 Nc3 d4 Rh6 d3 Rh5 d2 Qe7 d1R Qg5 Qc8+ Ke5 f5 Nf3 g1B Bf4 Ra7 Bg2 Rd4 Nh4 Nd7+ Ke6 Re4+ Kf7 Nc5 Nd5 c3 Bf3 c2 Rf1 c1B Be5 f4 Nf5 a1N Rh4 Ka2 Ng7 Nf6 Qf5 Ng4 Qd7 Nh2 b8N Rc7 b7 Nab3 b6 Nd3 Na6 Bfa3 b8R Rb7 Nac7 Bab2 Qf5 Bc5 e3 Re8 Rg4 Qd8 Rc8 Qg5 Rh4 Qg4 Rd8 Rb8 b7 Ba7 Rd6 Rb4 Rc6 Re4 Rc2 Rb4 Rg2 Re4 Be2 f3 Qd7 f2 Bf3 Rbd8 b8Q Re7+ Kf6 Rde8 Qbc8 Rb4 Qf5 Re6+ Kf7 Rb7 Rh1 f1R Qd7 Rf2 Rd1 Rc2 Rf1 Rc4 Bd4 Rcb4 Be5 Qh3 Rc4 Qg4 Bf4 Re4 Bd6 Nd4 Be5 Nb3
2qQ4/1nb2Qr1/3R1N2/B4Q1B/kNPPPr2/3BKrb1/3nPrq1/1r5R w - - 0 1 illegal: No possible last move
q2nQK1R/1r1P1q1N/2Q1PN1b/4rN2/1Pb1R1nR/3bP1B1/B4nk1/4b3 w - - 0 1 illegal: No possible last move
1K2R3/1P2b2r/brNQr1q1/P2P2N1/r2n1NQ1/q3B2Q/kP6/3bR1Bn w - - 0 1 legal: proof: e4 b5 c4 a5 cxb5 f5 exf5 d5 h4 g5 hxg5 a4 Qxa4 Kd7 Qa7 Ke8 Bc4 dxc4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 e6 f4 h4 a4 h3 b6 h2 f6 c6 f7 c3 g6 c2 g5 Qe7 f5 Rh5 f6 Rh7 g7 Nh6 g8Q Ba6 g6 Ng4 g7 Nf2 b7 Qe8 d3 Be7 f8B Qg6 Be3 c1R f7 Re1 Nd2 e5+ Kc3 Kd5 d4 c5 a5 c4 Ne2 e4 Nf3 Nc6 Ng5 Rd8 Qa8 Rd6 Qc8 Re6 Ra3 Ra1 Re1 h1B Qd7+ Rd6 Qh3 Bf3 Rb3 Nh1 Bg1 Na7 Kb4 Nb5 Re3 c3 Nf4+ Kc6 Qg3 c2 Qh3 c1Q R3e2 Qe3 d5+ Kc7 Kc4 Nd4+ Kc5 Qd3 Re3 Bd1 R3e2 Ra4 Be3 Bd8 Be7 Rb6 f8Q Qb3 Qge6 Qd3 g8N Qb3 Bg1 e3 Qeg4 Qbd3 Bf6 Qb3 Ne7 Qa2 Rd2 e2 Nc6 Qb3 Bg7 Qf3 Bh6 Qa3+ Nb4 Bf6 Rd3 Bd8 Re3 Bf6 Re8 Bd8 Rf1 e1R Qf6 Ree6 Re1 Rbd6 Qe5 Be7 Qf6 Qg3 Nc6 Kd7 Kb6 Qa3 Ka7 Kc7 Nb4 Rb6 Ka8 Kd6 Kb8 Kc5 Nc6 Kc4 Qe5 Bc2 Qd6 Bd1 Be3 Kb3 Bg7 Nf5 Bgd4 Ka2 Bc5 Nd4 Bg1 Nf5 Bce3 Nd4
1n2nK1k/1P1qBq2/Qr1P1R1B/Pr1Nb3/3QPn2/3q1B2/2N2N2/nb3R2 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 c5 Kf3 f5 h4 Kf7 d4 g5 e4 Kg7 h6+ Kh7 h5 c4 d6 c3 b6 c2 d5 Bd7 b7 Ra6 Bg2 Bg7 Na3 Nf6 Qd3 Bb5 d7 Ne8 d6 Rb6 Nh3 Be5 Rf1 Qc8 d8B Qd7 Qe2 Bd3 Be7 Rg8 Nf2 Kh8 Bd2 c1N h7 Bb1 Qa6 Nb3 Nc2 Rf8 Ra2 Na1 Bc1 Kg7 h8N g4+ Ke2 f3+ Ke3 g3 h6+ Kh7 Ng6 f4+ Kd3 Rf6 Kc4 Rf5 Kd5 Kg8 Bh1 g2 h7+ Kg7 Bd2 g1N Bg2 Ne2 h8Q+ Kf7 Qf6+ Kg8 Be3 Qc7 Ke6 Qd8 Nh3 f2 Bf3 Kh7 Kf7 Qd7 Kf8 Rh5 Bh1 f3 Ngf4 Rf5 Nd5 Nf4 Rc1 f1Q Nf2 Qd3 Rf1 Ng2 Bh6 Nf4 Ng4 f2 Bf3 Rh5 Ra3 Bb2 Qd4 Bc3 Rg1 f1Q Nf2 Re5 Rg6 Kh8 Rf6 Rh5 Nc7 Rhb5 Nd5 Bb2 Rc3 Qc4 Re3 Qfd3 Re1 Bc3 Rf1 Qb3 Qc5 Be5 Qd4 Qa2 Nde3 Qae6 Nd5 Qf7+
5Q1N/PBR5/1k2r2b/1b1q1P1r/2P2n1r/1b2RRn1/2NB2P1/1q1BK1rQ w - - 0 1 legal: proof: h4 b5 e4 f5 exf5 g5 hxg5 c5 d3 c4 dxc4 b4 c3 a5 cxb4 a4 b3 axb3 a4 h5 f4 d5 a5 Kd7 b5 Kc7 a6 e5 f6 d4 g6 b2 a7 d3 g7 d2+ Kf2 h4 f7 e4 f5 e3+ Ke2 h3 Ra6 h2 Nf3 Rh4 Rg6 Nd7 Re6 Nc5 Na3 b1Q Ne5 Qd5 Ng6 Nh6 g8B Ng4 Nh8 Ba6 Nc2 Bh6 f8Q Nd3 b6+ Kb7 Rc6 Bb5 Rc7+ Ka6 b7 Kb6 Be6 Re8 Bc8 Re6 Rg1 h1R b8R+ Ka5 Qe1 Nh2 Bb7 Kb6 Re8 Nf4+ Kd1 Rh5 Be2 Nf1 Bf3 R1h3 Rh1 R3h4 Rh3 Ng3 Qh1 Nf1 Rh2 Nh3 Ke2 d1B+ Ke1 Nf4 Rh3 e2 Bg4 Rg5 Bd2 Rgh5 Kf2 e1R Rf3 Ng3 Ree7 Rg1 Re8 Nf1 Ree7 Rc6 Ree3 Re6 Ke1 Qb2 Nd4 Bb3 Nc2 Qa2 Rf2 Qa1+ Bd1 Qb1 Rf3 Ng3+
2RB2B1/n1r4n/5r1q/nr1Q2QP/1r1PK3/3N2PP/BrN1Rb2/5kqN w - - 0 1 legal: proof: d4 g5 a4 b5 axb5 c5 Be3 cxd4 Ra5 h5 Ra1 g4 Bh6 h4 Bc1 g3 fxg3 h3 gxh3 d5 c3 d3 Qd2 d4 Ra4 Bf5 Qc2 d2+ Kd1 Bg6 Qb3 Bd3 Ra1 Bc4 Kc2 d1N Kd2 d3 Ke1 Ne3 Kf2 d2 Kf3 Bd3 exd3 Nd1 Ke2 Qc7 Ra6 Qc8 Ra1 Qd8 Kf3 Kd7 b6 Kc6 b7 Kc5 c4 Kd4 c5 a5 h4 f5 c6 e5 h3 e4+ Kf4 e3 h5 e2 c7 e1Q c8B a4 Kf3 a3 Rh2 f4 Nc3 a2 Re2 Qg5 Be6 Bc5 Ne4 Nc6 b8Q Ra4 Nf2 Rb4 Qb5 Na7 Nh1 Nf6 Bg8 Qh6 Rb1 Bb6 Qg5 a1R Qe6 Rb5 b4 Nb2 Qed5+ Kc3 Bg2 Bf2 d4 Nh7 Ke4 d1R Nf3 Rd2 Ne5 f3 Nd3 Nc4 Rb3+ Kc2 Rc3+ Kd1 Bf1 Na5 Rc8 Rb2 Bg2 Rc5 b5 Rc7 b6 Ra4 b7 Qg1 b8N Rab4 Nc6 Rb5 Bf7 Rf8 Bg8 Rf6 Ncb4 Rfb6 Nc2 R5b4 Bd2 R6b5 Bf1 Be3 Be1 f2 Bg2 f1R Bf3 Rf2 Bg4 Rf6 B4e6 R4b3 Bb4 Bf2 Be7 R3b4 Bd8 Qf8 Qa8 Qg7 Ba2 Qh6 Re3 Kd2 Qad5 Kd1 Rf3 Ke2 Re3+ Kf1 Re1+ Kg2 Re2 Kf1
5q1K/1NQR1R2/1P5n/NPPNrbq1/1q2B1n1/Q6q/rqP2B2/r3Bk2 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 g5 f4 gxf4 h4 Na6 g5 Bh6 g6 Bg5 hxg5 Nb8 b6 h5 Ke2 e5 Kf3 Ke7 Ke4 a5 b4 h4 g7 h3 f6+ Ke6 g6 h2 b5 a4 f7 a3 f8B f3 Bh6 a2 Be7 f2 Nf3 Nc6 Be3 Rh5 Nbd2 Nh6 Bd3 f1Q Nh4 Qff8 Rf1 h1Q+ Qf3 Qh3 Rad1 a1Q g8N Ra2 g7 Qb2 Nb3 Rf5 Bd6 Qg5 Ne7 Kf6 Bc7 d6 Kd5 Bd7 Na5 e4+ Kc4 Ne5+ Kd5 Bc8 Bd4 e3 Be4 e2 Qa3 e1Q g8Q Qgc1 Qg2 Qeb4 Qh2 Kg5 Bc3 Kg4 Be1 Rg5 Rf7 Rh5 Nhf5 Qce3 Bd3 Kf3 Qf4+ Kg2 Be4+ Kg1 Bd8 Neg4 Rd2 Bb7+ Ke6 d5 Qc7 d4 Nd6 d3 Rd1 Bc6 Ndb7 Rf5 Rd2 Kf1 Rd1 Nf2 Rd2 Re5+ Kf6 Bd7 Rd1 d2 Kg6 Qe8 Kh7 Bf5+ Kg7 Qd7 Kh8 Qe8+ Ng8 Nfg4 Bdh4 Qg5 Bhf2 Qee7 Nf6 Qd6 Rc1 d1R Rb1 Qa1 Rb3 Qac1 Rd3 Qcb2 Rd5 Qe7 Rd7 Rda1 Nd5 Qf8+
1rnNb1r1/1r1n1R2/1k1PPPQ1/4BNnQ/1n1qR1KB/1B1n1nP1/8/4Q3 w - - 0 1 legal: proof: c4 b5 e4 e5 d4 g5 h4 gxh4 a4 d5 axb5 f5 exf5 e4 cxd5 Bg7 Bf4 Nh6 Bc1 Be5 dxe5 Ng8 Ke2 Kd7 f4 c5 b4 Kc7 g3 a5 b6+ Kb7 b5 h5 e6 a4 f6 e3 Kf3 e2 f7 a3 f8Q c4 f5 h3 f6 c3 Qc5 h2 Nd2 a2 Nc4 h4 Ne3 e1N+ Kg4 c2 Bc4 h3 Ne2 Nf3 Nd4 Bd7 Re1 h1N Nc6 h2 Nf5 Be8 Bb3 Nd7 Re4 Rb8 Qe1 Ne7 Bg5 c1N Bh4 Nd3 Rc1 a1N Rc2 Kc8 b7+ Kc7 Ra2 Nc2 Ra7 Ncb4 Qc2 Qc8 Nd8+ Kb6 Qcd1 Qc3 Qde2 Kc5 b6 Nc8 Q2d1 Qd4 Qb1 Ra8 b8Q Rh7 b7 Kb6 Qf4 Rb8 Qh6 Rg7+ Qg6 Rg8 Qbd1 Nhf2+ Kh5 Nh3 Kg4 Ra8 b8B h1R Be5 Nhg5 d6 Rb8 Qde2 N7c5 Rf7 Nd7 Q1d2 Rb1 Qee1 Nh3 Qh6 Nhg5 Qgh5 Ra1 Qh7 Ra7 Q7g6 Rab7
1Br5/r2rb2P/1r2q1kN/1r1RK2N/n2RP1B1/1P1PB2q/3Q2Q1/1nN4r w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b5 a4 a5 axb5 Ba6 bxa6 Qd6 Na3 Qe7 Nb1 Qd8 Kf2 f5 Kf3 Kf7 h4 g5 e4 c5 b3 a4 d6 a3 a7 a2 h6 c4 h7 g4+ Ke2 f3+ Ke3 f2 Kd4 c3 d3 g3 d7 g2 h5 c2 h6 f4 Ke5 f3 Nd2 Nf6 Qe1 Qe7+ Kf4 Kg6 d8B Nbd7 Rh5 Qe6 Be2 f1Q Rd5 f2 Bg4 Nc5 Ne2 g1R Bc7 Rc8 a8Q Be7 Bb8 Qh3 Nf1 Rhd8 Be3 c1R Qd2 Na4 Nfg3 R1c5 Nc1 Rb5 Nh5 Rd7 Qaa5 Rh1 h8N+ Kh7 Nf7 f1R+ Qf2 Kg6 h7 Rfg1 Qad2 Rb6 Rb1 a1R Nh6 Rg3 Qg2 Ra2 Bd1 Rg5 Bg4 Re5 Rd4 Reb5 Ra1 Qc4 Qb2 Nd5+ Ke5 Ndc3+ Rd5 Nb1 Qbd2 Nc5 Rd4 Raa7 Ra4 Qf7 Rd5 Qg8 Rc4 Na4 Rd4 Qe6+
1Kq2kNN/1nB3nP/4P2R/nQ1b3r/2P4R/n2P2nB/1B3N1q/Q5bn w - - 0 1 legal: proof: g4 a5 a4 d5 f4 c5 b3 h5 gxh5 b5 axb5 c4 f5 d4 f6 exf6 c3 f5 cxd4 f4 d5 c3 Ra3 Ra6 Ra2 Rc6 Ra1 Rc4 bxc4 Rh6 Nh3 Rh7 Ng1 Rh8 Kf2 f5 Kf3 g5 h4 g4+ Kg2 f3+ Kg3 c2 Kf4 g3 Ke5 f2 e4 f4 d3 f3 b6 a4 b7 g2 h6 a3 d6 a2 h5 Nc6+ Kd5 Na5 b8Q Qd7 e5 Nb7 h7 Nh6 e6 Nf5 h6 Ng7 Bb2 c1N Nd2 Nb3 Rh4 N3a5 Nh3 g1Q Ne4 Qh2 Qb1 Be7 Nf6+ Kf8 Ng8 Bf6 Bg2 f1N Nf2 Ng3 Bh3 Nh1 Qa7 Bd4 Qa6 Qe7 Qb5 Qd7 Qf1 Bc5 Re1 a1N Rd1 Qc7 d7 Nc2 d8B Na3 Re1 Qf7 Bc7 Bd7 Ree4 Bb6 Ref4 Bc6+ Ke5 Bd5 Qa1 Nc5 Kd6 Ba7 Ng4 f2 Rh5 f1N Nf2 Nfg3 Re4 Qf6 Reh4 Ncb7+ Kd7 Bd4 Kc8 Qf7 Kb8 Qd7 Ne7 Rg8 h8N Bb6 h7 Be3 Ng4 Bg1 Rh6 N7f5 Bg2 Rg5 Bh3 Rh5 Ng8 Ng7 Nf2 Qc8+
B2Q4/2n4q/k3qRrN/1r1QRN2/2BQq2P/1rPB4/1Pb1PK1r/2q3n1 w - - 0 1 legal: proof: f4 b5 d4 f5 a4 c5 axb5 e5 dxc5 h6 g3 Be7 Be3 Bg5 fxe5 f4 Bc1 f3 Bd2 Be3 Bc1 Bd4 Bf4 Be3 Bg5 Bf4 gxf4 hxg5 b6 d5 e6 a5 h3 f2+ Kd2 g4 Ke3 g5 c3 d4+ Kd2 a4 c6 a3 c7 a2 b7 d3 Ke3 d2 e7 Kd7 f5 Kc6 e8B+ Kb6 f6 g3 f7 g2 f8Q g4 Na3 g3 Qd6+ Nc6 Qe6 Qd6 Rh2 Nge7 Qe4 Bf5 c8B Ne5 Rh1 Nf3 Bg6 Qe6 Nb5 Ra3 Nd4 Rb3 b8Q+ Ka5 Rc1 a1Q Ba6 Qb1 Bc4 Rh5 h4 Rg5 Nh3 g1Q Bg2 f1R+ Nf2 Rh5 Qc2 d1Q Rh3 Qh1 Ng4 Rf2 Nh6 Qdg1 Rf1 Nd5+ Kd3 Rg5 Qd8+ Nc7 Ke3 Kb6 Qe5 Bd3 Qe4 Rgb5 Qd1 Ka6 Qe5 Nh2 Bf3 g2 Ba8 Nf3 Rg3 Bf5 Rg5 Be4 Qed5 Qc2 Re1 Qf1 Rf5 g1R Re5 Rh2 Bf5 Qfg2 Rf1 Qgg8 Rf2 Rg6 Qg1 Qd1 Rf1 Bc2 Bfd3 Qgf7 Qg4 Ng1 Rf6 Qe7 Ndf5 Qh7 Qgd4 Qf1 Qg2 Qc1+ Kf2 Rh3 Qgd5 Qe4 Nf7 Rh1 N7h6 Rh2#
1n2qb1N/q2QP3/bRn4P/N4P2/1bn5/B1bQQ3/2P1B1qq/2R1BK1k w - - 0 1 legal: proof: e4 f5 d4 c5 g4 cxd4 a4 h5 gxh5 b5 axb5 f4 Kd2 a6 Ke2 Nc6 Ke1 Nb8 f3 g5 Qe2 e5 Qd3 a5 Qd1 Rh7 Bd2 Rf7 Be3 Rf5 exf5 e4 Bd2 e3 Bc1 Ra6 Ne2 Re6 Ng1 Re4 fxe4 Ke7 Nh3 Kf7 Ng1 Ke8 b4 Kf7 h4 Kf6 h6 Ke5 b6 d5 h7 a4 b7 a3 b5 d3 b6 a2 h5 e2 h6 f3 Be3 d2+ Kf2 d4 Na3 g4 Rb1 a1B Nh3 d3 Bc5 Ne7 Ng5 Kf4 h8B Bc3 e5 Qe8 e6 Nec6 e7 e1B+ Kg1 Kg3 Be2 f2+ Kf1 Bb4 Nc4 Bc3 Rg1+ Kh2 Na5 g3 Nf7 Bb4 Qc1 d1Q Bc3 Qd2 Nh8 Qf4 Qe3 d2 Rb3 d1N Bd2 Bc3 Ba3 Nb2 Qd3 Nc4 Rb5 Nd7 b8Q Ba6 Qd8 Ndb8 b7 Qe3 Q8d7 Qa7 Rb6 Bb4 Bf4 Bec3 Bd2 Bc5 Rg2+ Kh1 Be1 B5b4 Rg1+ Kh2 Q7d4 Qa8 Bd2 Nd7 Qe5 Kh3 Qee3 Kh4 Kg2 f1Q+ Kh1 g2+ Kh2 Qa7 Rh1 Qf3 Rc1 Qg3+ Kg1 Kh3 Be1 Qf3 Bd1 Qg3 Bf3 Qg8 Kf2 g1Q+ Ke2 Q1g3 Kf1 Kh2 Be2 Kh1 b8Q Nd4 Qd6 Nc6 Rb1 Ndb8 Rc1 Qh2 Qd7 Qgg2#
b5q1/1RN1q1q1/PPB3Rn/5PN1/B1PQn2k/1rpQ1b2/8/1N1nKBr1 w - - 0 1 illegal: No extended proof kernel
2NK2N1/B1BnP2q/1b4k1/QbPb2pq/1PP5/1r1RR3/3rQ3/2r1QN1n w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 gxf5 c4 Bh3 c3 Bg4 hxg4 dxc3 Na6 c4 Nb8 c5 Bb7 Ra5 Ba6 Ra1 Bc8 Kd2 Kf7 Kc3 d5 Kd4 a5 c4 g5 h4 g3 b4 a4 e4 g2 h5 a3 b6 a2 e6+ Kf6 e7 Nd7 e8N+ Kf7 b7 Ra7 b8B Ra6 f6 Ra5 e5 Ra8 h6 Ra7 h7 Rb7 e6+ Kg6 f7 Bg7+ Nf6 Bh6 f8Q Qe8 e7 Bg7 Nc3 Nh6 Qe1 Ng4 Na4 Nf2 Rh3 Nh1 Ne2 g1Q+ Re3 Qh2 Ng3 Qh6 Rb1 a1R Nb6 Rba7 Rbb3 Ba6 Bc7 Bb5 Nc8 R7a3 Rbd3 Rb3 Nf1 Qh5 Bb8 Qf7 Qd8 Qg8 Bd2 Rc1 Ba7 Qf7 Qc7 Rd8 h8Q Qg8 Qa5 Qgh7 Qf8 Bh8 Re5 Bg7 Ng8 Bh8 Qf3 Bf6 Ke3 d4+ Ke4 Bh8 Kd5 Bf6 Rf5 Be5 Ke6 Bc7 Qfe2 Bb6 Re3 d3 Rd5 Nf6 Bc3 d2 Rdd3 d1B Be5 Rd4 Bc7 Nd7 Q2f2 Bf3 Qee2 Ne5 Qfe1 Bd5+ Kd6 Nc6 Kd7 Nb8+ Kd8 Nd7 Rc3 Rdd1 Rcd3 Rd2
6R1/1pN1B3/BnQKrnr1/1qr3RP/1P2PqB1/N1Q5/1n1b1bPk/N7 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 a4 fxe5 Qf6 Qb3 Qd8 h3 axb3 Ba3 g5 Bc1 g4 hxg4 Qd7 Rh2 Qd6 Rh1 Qd8 Nc3 h5 Nb1 h4 Bb2 Bf5 Ba3 Bg6 Bc1 Bh5 gxh5 Qd6 Kf2 Qe7 Ke1 Qd8 Kf2 Ke7 Ke3 f5 Kd4 f4 Kc5 h3 d4 h2 a4 b2 e4 c6 e6 Kf6+ e7 Kg5 a5 Kh4 d6 Kg3 e8B f3 d5 f2 a6 Qc8 a7 Qg4 Bg5 Qf4 Ra5 Rh6 Bd7 Rg6 Nf3 Bg7 Be2 f1Q Nfd2 Bc3 Nb3 Be1 Rg1 h1R Be7 Nf6 Na1 Kh2 Na3 b1N Bdg4 Nc3 d7 Nd1 d8Q Nb2 d6 Bg3 Qc8 Nbd7+ Kd4 Bh4 Rg5 Nb6 d7 Be1 d8Q Bf2+ Kc3 c5 Qdd7 c4 Qd5 Bg3 Kd4 c3 Kc5 c2 Bc4 Qe2 Rd1 c1B Qd2 Rf1 Qc6 Bf2+ Qe3 Rg1 Rd8 Bd2 Rg8 Rc1 Qd4 Rd8 a8N Rd6 Qe3 Re6 Nc7 Re5+ Kd6 Qf1 Bb5 Rcc5 Ba6 Qb5 Qc3 Re6+
4qB2/P4n1n/1PN1q2b/1NR1r2k/P4r1b/PqQQp1BK/1N6/2R2B1n w - - 0 1 illegal: Other
1N1Q1r2/PP1q2Pr/PB3bQ1/b1K2bN1/1R1B1qp1/Q7/R1n1Br2/n5k1 w - - 0 1 legal: proof: c4 a5 f4 g5 b4 h5 bxa5 b5 cxb5 e5 d4 Ke7 dxe5 Ke8 g4 hxg4 fxg5 Ra6 Nc3 Ra7 Nb1 Ra8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 h4 d5 e4+ Ke6 a4 f5 g6 f4 b6 f3 b7 f2 h5 c6 h6 Ne7 h7 Nd7 Qb3 Qc7 Ne2 Bg7 Nd2 Nc5 Nf3 Bf6 Be3 Qd6 Qa3 Nb3+ Kc3 c5 Ra2 c4 Bb6 Qb8 Kb4 Na1 Kc5 d4 Rg1 d3 Ng5+ Kd7 Nd4 d2 Rg2 d1Q Nc6 c3 Bd3 f1R Rgb2 c2 Be2 Nd5 Rb4 Ne3 e6+ Ke8 e7 Qf4 e5 Kd7 a6 Qd2 a7 c1B a5 Nec2 a6 Qd1 Rb1 Bd2 Rb3 Ba5 Rb4 Qd3 Nh3 Ke6 e8Q+ Kf5 Ng5 Bd7 Qg8 Bc8 e6 Bd7 Qf7 Raf8 e7 Be6 e8Q Qd7 Nb8 Ke5 Qd8 Bf5 Rb1 Rf3 Nh3 Ke4 Qg7 Bac3 Ng5+ Ke3 Qf7 Kf2 Qg8 Ba5 Rb4 Kg1 Qf7 Rhg8 h8B Rg7 Qg8 Bb2 Qe6 Rgf7 Bf6 Rh7 g7 Be5 Qf7 Rf2 Qg6 Bc7 Bc3 Be5 Bd4 Bf6
b4n1n/5r1R/P2rQ2R/1bN1Rnpb/P5qk/1QB5/BKP2P2/N3nN2 w - - 0 1 legal: proof: e4 f5 exf5 a5 d4 h5 b4 c5 bxa5 cxd4 g4 e6 gxh5 Be7 f6 Kf8 fxe7+ Kf7 Kd2 Kf6 e8Q Kg5 a4 b5 h6 d5 h7 b4 h3 b3 a6 d3 Kc3+ d2 Qd7 d4+ Kb2 d3 Qe2 e5 Qf7 e4 Qe8 e3 Qb5+ Kh4 Qd5 d1B Bd2 g5 Bc3 Bd7 Nd2 Ra7 Bg2 Rb7 Nf1 d2 Ra3 Bb5 Nf3+ Kh5 h4 Rf7 Ra1 Qc8 Nd4+ Qg4 Qe6 Ne7 Qf3 Rhf8 h8N e2 Ng6 e1N Ne5 Ng6 Nd7 Nh8 Nc5 Rd8 Qg3 Nd7 Bd5 Nf8 Bc4 Qf5 Qb8 Kg4 h5 Rd6 h6 Be2 h7 d1N+ Kc1 Bf3 Rh6 Ne3 Kb2 Ba8 Rb1 N3g2 Rd1 Nh4 Rd2 Kh3 Re2 Qg4 Qb6 Bd7 Re5 Bb5 Kb1 b2 Ba2 Bf3 Ndb3 Ba8 Rf6 Nf5 Rh6+ Qh5 Na1 Kg4 Bb3 Kh4 Ka2 b1B+ Kb2 Ba2 Bd5 Nhg6 h8R Bac4 R8h7 Be2 Ba2 Nh8 Rg7 Bbd3 Qbb3 Bb5 Rhg6 Qf3 Rf6 Qg2 Rh6+ Bh5 Rgh7 Qg4
8/1qQ2bK1/P1bBqp2/B3nrPN/3Q1b2/n1RrBP1k/Q1N4P/5R1b w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 e6 bxa5 Qf6 d4 Qh4 d6 Qd8 d7+ Ke7 g3 Qe8 d5 Nc6 d6+ Kf6 Bg2 Qd8 Bd5 Nb8 Bb3 Ke5 Qd3 h5 Nh3 h4 Bd5 exd5 Qb3 Kd4 Qd1+ Kc5 Ng1 Kc6 gxh4 g5 hxg5 Rh6 Na3 Rh7 Nb1 Rh8 Kd2 b5 Ke3 b4 Kf4 b3 Ke5 d4 a4 d3 e4 f6+ Ke6 b2 Kf7 d2 e5 Kd5 e6 Ke4 e7 Kf4 e8Q c5 a6 c4 a7 c3 a5 c2 Qe6 Bb7 Qee2 Nh6+ Kg6 Qc8 d8B Qe6 d7 Nc6 Ra2 Bd6 Na3 b1B Be7 Ne5+ Kg7 Bc6 d8B Nhg4 Bf8 Nc4 Nh3+ Kf5 Re1 Bf4 Rf1 Nge5 Bd6 Rh6 Rb2 Ba2 Rb3 Rh8 B8c7 Rhd8 Rc3 Rab8 a8Q Rb5 a6 Ra5 Bb4 Rd3 Qb8 Rc5 Bca5 Rcd5 Nb5 Na3 Bd6 Rc5 Qb6 Bad5 Qc7 Bh1 Qde1 d1B Be3 c1Q Q1d2 Qb1 Nd4+ Ke4 Qg4 Qb7 Qa2 Bb3 Nc2 Rcd5 Qd1 Kf5 Qd2 Kg4 f3+ Kh4 Qd1 Ng4 Qda1 Rf5 Qd1 Ne5 Qd2 Bg3 Nf4 Bc4 Nh5 Kh3 Qd1 Bf4 Qda1 Qec8 Q1b2 Bf7 Qb4 Qd7 Qd4 Qe6
3Qr1b1/nP1KR2q/3q1P2/1PQP4/1n3B2/N1n2n1k/4p1b1/RrBB1R1N w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kf3 a5 Kg4 h5+ Kh3 e5 d4 c5 b4 a4 b6 a3 b5 f3 d6 a2 g7 e4 f6 Ke6 b7 Kf5 d5 f2 g6 c4 d7 h4 Nd2 e3 Ndf3 e2 Nh2 c3 Ng4 c2 Qd4 Nh6 g8R Nc6 g7 Na7 Qc5 Nf7 Nf3 Ne5 Ne1 Nf3 Bg2 f1B Re8 Qe7 g8Q Qd6 d8B Be6 Qf8 Bg8 Re7 Rb8 Bb6 Re8 Nf2 Rh7 Bf4 c1N Nc2 Rh6 Na3 Rh7 Rb1 a1N Ba5 Rh5 Bad2 Nc2 Ra1 Na2 Bc1 Nc3 Rg1 Nb4 Nh1 Kg6 Kg4 h3 Ng3 h2 Nh1 Rh7 Bh3 Bg2 Rf1 Rb8 Qd8 Rh8 Kg3 Kh5 Bf5 Rc8 Bc2 Rh6 Qdc7 Re8 Qd8 Rh8 Bd1 Rh7 Kf2 Kg4 Ke3 Rh6 Be5 Kh4 Kf4 Kh3 Kf5 Rh4 Bg3 Rd4 Bgf4 Rd2 Bh6 Rb2 Bhf4 Rb1 Ng3 h1Q Qc4 Qg1 Nh1 Qd4 Qc5 Qc7 Bd6 Qh4 Bdf4 Bh7+ Ke6 Qe5+ Kd7 Bg8 Qd4 Qh7 Qc5 Qd6+
b2bNB1R/Bb1R1QP1/Qp2q1K1/4q1R1/2n5/4PnP1/2k1rPNN/1q4n1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 g4 c4 g3 c5 Nc6 hxg3 Ra6 g4 Ra8 g5 Nb8 c6 f5 e3 b6 Ba6 f4 Kd2 f3 Bd3 Ra7 Be2 Rb7 cxb7 fxe2 Kd3 Kf7 Ke4 Ke6 a4 e1N a6 c5 a5 d5+ Kf4 h5 a7 d4 a8Q Kd5 g3 Kc4 g6 d3 g7 d2 e6 Kd3 Kf5 c4 a6 h4 a7 c3 Rh2 h3 Qf3 d1Q Qf4 c2 Qe5 Qc7 Na3 Nc6 b8B Nf3 Qb2 Nge7+ Kf6 Na5 Qa2 Nd5+ Kg6 Nc4 e7 Qe5 e8N Be7 Bb2 c1Q Nc2 Qdd2 Ba3 Bd8 Bf8 Bb7 Ne1+ Kc3 Rh1 h2 Ng2 Rh5 Qa6 Kc2 Ra5 Nc3 Rd5 Qb2 Rd7 Ne2 Qa2 Qdd5 Qa6 Bc6 Q8b7 Qb1 a8R Rh4 Qc7 Rd4 Ba7 Bb7 Rb8 Rd2 Rc8 Nfd4 Nf3 Ng1 Ra8 Re2 Rb8 Nh3 Rd1 h1B Nh2 Nf3 Rd4 Nfg1 Rg4 Nf3 Rg5 Nhg1 Ra8 Qed4 Qf4 Q4e5 Qf7 Qde6+ Nf6 Bc7 Nh4 Bd5 Bd6 Ne1 Rh8 Ba8 Bf8 Bhb7 Ng2 Nef3 Bc5 Qg4 Bf8 Bd8 Ne8 Qge6+
1Q2B1k1/1bRn2P1/Q5qP/KPPq1r1q/2NN4/1qN5/n1R1B1qp/6rR w - - 0 1 illegal: No proof kernel
QQNbnq2/N1n2p2/k1qPb2R/1R4qP/B1qNr2Q/K4PP1/2B5/5q2 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 g4 Qg5 d4 Nc6 d6 Qf6 d5 Qd8 Be3 Nb8 Bd4 exd4 Nd2 h5 gxh5 g5 Qc1 a5 Nc4 g4 Nd2 g3 Nb1 g2 Qc2 Ra6 Qd1 Rc6 Ra3 Rc3 Ra1 Rg3 hxg3 Rh7 Ra4 Rh6 Ra1 Rh8 Kd2 Kd7 Kc2 c5 Kb3 c4+ Ka3 d3 b4 d2 e4 c3 f3 a4 b6 c2 b7 Na6 b8N+ Ke8 e5 Nc7 d7+ Ke7 e6 Kd6 b5 Kc5 e7 Kb6 Nc6 Nf6 Nc3 Na6 Bd3 Ne8 Ne4 Bh6 Na7 Bg5 Nd6 Nac7 Ne2 g1Q Nd4 Qe3 Qe2 d1Q Qh2 Rg8 Qh4 Qde2 Rhb1 c1Q+ Rb2 Qe6 Bc2 Qc4 Ra2 Ka5 b6 Ka6 b7 Qh6 b8Q Qf8 Ra1 Rg6 Ra2 Re6 Ra1 Q1f1 Rb5 Re4 Qa8 Qc6 Rd1 Qfc4 Re1 Ng7 e8B Qde7 d8Q Be6 Bd7 Nge8 Qdb8 Qf6 Rd1 Qf4 Rd2 Bd8 Rd3 Qg5 Re3 Qh8 Ndc8 Qf8+ d6 Qe2 Kb4 a3 Ka4 a2 Ka3 Qec4 Re1 Rg4 Ree5 Re4 Rf5 Q6d5 Rf6 Qcc6 Rh6 a1Q+ Kb4 Qf1 Ka3 Bf5 Rb7 Qcc4 Bda4 Qdc6 Rb5 Be6
1Q1b1BQN/1B4Bq/1pRNb3/PP6/rnn1PnR1/1K1P4/4k2q/b1n3Q1 w - - 0 1 legal: proof: b4 d5 a4 a5 bxa5 h5 c4 e5 cxd5 h4 f4 exf4 g3 Rh6 gxh4 Rb6 h5 Rb5 axb5 Ra6 Qb3 Rh6 Qd1 Rh8 h4 Ke7 d3 Kf6 Kd2 Ke5 Kc2 Kd4 h6 f5 h7 c5 d6 g5 h5 c4 d7 b6 h6 g4 Nd2 Ke3 Ba3 g3 Ra2 c3 Nb3 f3 Qa1 f2 Nc5 g2 Nh3 g1B Rb2 f4 Ra2 f3 Qd1 Qh4 d8B Be7 Nf4 Nc6 Kb3 c2 Bg2 f1N Ne4 f2 Ng6 Nb4 Nd6 Nf6 Bb7 Qh2 Bb2 Bd7 Ra4 Nfd5 Bg7 Nf4 Bc7 Rf8 h8Q Bd8 h7 Bf5 Qg8 c1N+ Kc3 Bh3 h8Q Be6 Bb8 Qh7 Rh6 Nd2 Qf1 Bh2 Qg1 Nc4 Bc7 Rf5 Bb8 Rh5 Bc7 Rh4 Bf8 Nca2+ Kb3 Kd2 Qe5 f1Q Nh8 Qh3 e3 Ke2 Rg6 Rg4 e4 Rg2 Rg4 Bg3 Bb8 Qh2 Bg7 Bgh4 Bc7 Bdf6 Bd8 Rf2 Be7 Rf1 Bef8 Ra1 Ndf7 Bd8 Qb8 Bhf6 Ra3 Nc6 Nd6 Nc1+ Kc2 Bb2 Rb3 Ra4 Rc3 Na2 Kb3 Ba1 Ba8 Ncb4 Bd5 Ne5 Rc8 Nc4 Bb7 Q7h3 Rc7 Qh7 Rc6 Nc1+
1NBK4/RrnPr3/5Rn1/4r1rP/1p1P1Q1P/Bb1k4/4bQbN/N4Qb1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 f4 Qe7 fxe5 axb4 a3 b3 a4 b4 Kf2 Qc5+ Ke1 Qb5 axb5 Bd6 Na3 Be7 Nb1 Bf8 Kf2 Kd7 Kg3 g5 Kg4 f5+ Kf3 c5 e4 f4 Kg4 c4 Kf5 g4 h4 c3 b6 f3 d6 Kc6+ d7 Kc5 Ke6 Kd4 b7 f2 Ra7 g3 Ba3 c2 Ba6 c1R Qf1 g2 d3 b2 Nd2 b1B Ngf3+ Ke3 Nb3 g1R Nh2 Rc7 Na1 Rg5 d4 Bh6 Kd6 Rh7 e6 Ne7 e5 Ng6 e7 Ba2 e8Q Bb3 e6 Re7 Qf7 Rcc5 Qf5 Re5 Kc7 Kd2 Kd8 Ke3 Bd3 Na6 b8N Nc7 Ba6 Bb7 Qf7 Bg2 Bc8 Kd2 Qf4+ Kc3 Rb7 Ra6 Ra7 Rb6 Rg1 Rb7 Rh1 Rh7 e7 Rg7 e8Q Rge7 Qg1 f1B Qef7 Kd3 Qgf2 Be2 Rc1 Rg4 Rc6 Rg3 Qf1 Bg5 Q4f2 Be3 Q7f4 Rg4 Rf6 Rgg5 Q2e1 Bg1 Qf1f2 Kc4 Qef1 Kd3
qN1Q2b1/RP2N1b1/Pb4p1/7k/1R1Br3/rB1P4/1b1KRb1P/2Nq2qQ w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 cxd5 b4 g4 hxg4 b3 a5 Qf3 Nc6 Qd1 Nd4 Bg2 Nf6 Bf1 Nb5 Na3 Ne4 Nb1 Nec3 axb5 a4 Ra2 a3 Ra1 Na4 bxa4 Ra6 Bb2 Ra5 Bc1 Ra8 f4 Kf7 a5 c5 f6 Kg6 b6 e5 d6 c4 d7 g3 b7 b3 f7 e4 d3 a2 Nc3 e3 Bg2 e2 f5+ Kh5 f6 g6 Bb2 Bg7 Bd5 g2 Kd2 Re8 f8R Re4 f7 Bd4 Rb1 a1B Re8 Bb6 f8N Ra6 Bg8 Ra7 Nd5 c3+ Kc1 c2 Ne7 Ra6 Bd4 b2+ Kd2 Ra7 Bb3 c1B+ Kc2 Bh6 Qe1 Bg7 Kd2 Qc7 d8Q Be6 Nd7 Qb8 Qf1 Qa8 Nb8 e1B+ Kc2 Kh4 Ne2 g1Q Nc1 Bf2 Kd2 Kh5 Qg2 Qf1 Rg1 Bg8 Qh1 Ra6 Rg5+ Kh6 Rb5 Qg1 Rb4 Kh5 Ne2 Ra7 Rf1 b1Q Nc1 Ra6 Re1 Bb2 Re2 Bc5 Na2 Qbf1 Nc1 Rc6 Rf8 Bb6 Rf6 Rc3 Rd6 Ba7 Ra6 Bc5 Ra7 Bb6 Bc2 Rb3 a6 Ra3 Bb3 Qd1+
1Q1N1qb1/Qr3p2/1B2r3/2Rb2q1/4bK1B/1PbBP3/P3N2P/1bR1Rb1k w - - 0 1 illegal: No proof kernel
r6n/3P3q/1NQq3k/NQp3q1/Rq2Br1n/1RBP2PN/2PKQ2r/2r5 w - - 0 1 legal: proof: f4 d5 a4 e5 e4 exf4 exd5 b5 axb5 f3 g3 Nf6 g4 Ng8 Ne2 f5 Ng3 g5 Ra6 Bd6 Ra1 Bd7 Ne4 Bg3+ Nf2 f4 Ra4 Qc8 Ra1 Bf5 gxf5 g4 Ra3 Bh4 Ra1 g3 Nh3 g2+ Nf2 Bg3 hxg3 Nc6 Nh3 Nb8 Ng1 Qd8 b4 Kf7 d3 Kg7 d6 c5 d7 h5 f6+ Kh6 b6 a5 b5 h4 f7 a4 f8N f2+ Ke2 h3 b7 h2 b6 a3 Nh7 a2 Nh3 g1Q Be3 Nc6 b8Q Ne5 b7 Qg5 Na3 f3+ Kd2 Ne7 Qc7 N5g6 b8Q Nh4 Bg2 f1Q Qb5 f2 Qe2 Qb1 Nc4 f1R Na5 Neg6 Be4 Rf4 Bd4 Qb4+ Bc3 Qgd4 Nf6 Qd6 Rhb1 h1Q Qcc6 Rh7 Nd5 Nh8 Rb3 Qh2 Rab1 a1R R1b2 Rc1 Ra2 Rhf7 Ra4 Rf2+ Ne3 R7f4 Nd5 Qh1 Nb6 Rh2 Bf5 Qhe4 Bg6 Qee7 Be4 Qh7
4Q3/PB1P2qR/2P1q1b1/1qB2R1B/2bQ2p1/b3q3/PQNNkn2/n4b1K w - - 0 1 legal: proof: c4 h5 b4 b5 g4 c5 gxh5 g5 f4 a5 bxa5 e5 d3 exf4 Bb2 d5 Ba3 Ra7 Bc1 Rd7 Bg2 d4 Bf1 Rd5 cxd5 c4 Ba3 c3 Bc1 Rh6 Qc2 Rc6 Qd1 Rc4 dxc4 Qd6 Nf3 Qe7 Ng1 Qd8 Kf2 Ke7 Kg2 Kf6 e4 Ke5 h4 f5 h6 d3 a6 Kd4 a7 c2 c5 f3+ Kh2 f2 h7 g4 h8Q+ Nf6 h5 b4 d6 d2 h6 Ke3 h7 f4 e5 f3 e6 b3 c6 b2 d7 Qe7 Nh3 Qg7 e7 Ba6 e8B Ba3 Ng5 Bc4 Qf8 Na6 h8Q Nb4 Bh5 Ne4 Be2 f1B Ne6 f2 Qe8 Qf6 Nd4 Qe6 Bf3 Bfd3 Be2 f1B Kg1 Nf2 Rh2 Nh3+ Kh1 Bf5 Rf2 Bg6 Rf5 Nf2+ Kg1 Bb3 Ba6 Bbc4 Bb7 Kd3 Nc3 b1Q Ne4 Ke3 Bb2 c1Q Nc2+ Kd3 Bd4 Qcb2 Bb6 Qg7 Bc5 Qb3 Qb1 d1Q Qb2 Qf3 Nd2 Qfe3 Qd4+ Ke2 Kh2 Bg2 Rh1 Bf1 Qb2 Qa4 Kg1 Qb5 Kh2 Qgh6 Qhd4 Qg7 Kg1 Nbd3 Rh4 Nc1 Kh2 Nb3 Kg1 Nh3+ Kh1 Na1 Qbc3 Qge7 Qb2 Bf7 Bg6 Q7f6 Rh6 Qg7 Bh5 Bg6 Rh7 Nf2+
b4R1n/nn2q3/3Q1P2/bP2Q1Q1/3p1B2/1P2pKNR/2Nr2P1/r2kB1bN w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 exf5 Bb7 hxg5 Bd5 d4 Bc4 dxc5 Bxf1 c4 Kf7 f4 a5 Kf2 h5 g6+ Kf6 c6 d5 c7 e5 c8Q h4 c5 e4 b3 h3 g7 h2 c6 a4 c7 a3 Ne2 a2 Ng1 Qe7 Nh3 Nh6 g8Q Bd3 Ba3 Nc6 Qb8 Nf7 c8N Na7 Bd6 e3+ Kg3 Be4 Na3 Rh5 Nf2 Nh8 Rc1 a1B Nc2 Bc3 Kg4 Ba5 Qg5+ Kf7 f6 Ke6 Rf1 h1N f7 Ng3 Nh1 Nf5 Rb1 Bg7 f8B Be5 Bb4 Nd6 Bh6 Nb7 Be1 Bd6 f5+ Ke5 Rf3 Bdc7 Rh3 d4 Nd6 Rh4+ Kg3 Rf4 Qdh5 Rf2 Qf8 Bc6 Ne4 Rd2 Kf3 Kd5 Ra1 Bh2 Neg3 Bg1 Qhe8 Qc7 f6+ Qe5 Qf4 Qe7 Qg6 Kc5+ Qfe4 Bd5 Bf4 Bc6 Qg5+ Bd5 Na3 Kb4 Nc2+ Kc3 Qb8 Kb2 Qd6 Bc6 Ra4 Kc1 Rc4 Bd5 Rc8 Kd1 Rf8 Rc8 Nb4 Rc1 Nc2 Bc6 Qed5 Ra1 Qe4 Nd8 Qed5 Ba8 Qe4 Nb7 Qef5 Ra4 Qfe5 Ra1
2QQ4/r2b1p2/QRq5/P2N4/r1Pnb1R1/R2rP1p1/K2Bq2P/B2nN1k1 w - - 0 1 legal: proof: f4 c5 b4 a5 bxa5 e5 fxe5 h5 d4 Qb6 dxc5 Qf6 g3 Qd8 Bh3 Be7 Bg4 Bh4 gxh4 hxg4 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 a4 Ke4 c4 d5 h5 g5 a6 b5 a7 d4 c6 d3 e6 d2 e7 Ke3 e8Q+ Kf2 h6 g3 e3 b4 h7 g2 c7 g4 a5 g3 Qc6 Qd6 Qb6 Qc6 Ra3 Nf6 Qa6 Rd8 h8B Ng4 Be5 Rd3+ Kb2 b3 Bf6 Bd7 Nf3 g1R c8Q Rf1 Ka1 b2+ Ka2 Rg1 Nc3 b1B+ Kb3 Bc2+ Ka2 Kg2 Nd5 Nf2 Ba1 Re1 Qe2 d1Q Qd2 Qe2 Qd1 Rf1 Qd2 Nd1 Ne1+ Kf2 Rg1 Qf6 Rh1 Nc6 Rg1 Nd4 Rh1 Rb8 a8R Rb7 Rb8 Ra7 Rb6 Qf3 Rg6 Qf6 Rg4 Qc6 Rg1 Rb3 Qd3 Rb4 Bd2 Ra4 Qe4 Bd3 Qee8 Bc2 Qed8 Be4 Nc2 Re1 Rf1+ Kg2 Rf6 Kg1 Rd6 Rf1 Ne1 Rf5 Nf6 Rb5 Nd5 Rb3 Rh6 Rd3 Re6 Qb7 Rb6 Qc6
1Q2K3/2QNp1RN/2Rb2rP/7P/b2Pp1Bk/B2q1q2/Q1P1B3/4rnnn w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 b5 a4 c5 bxc5 f5 axb5 h5 gxh5 f4 Qg4 f3 Qd7+ Kf7 Nxf3 Na6 Ng1 Nb8 Ke2 Kf6 Ke3 Kg5 Kd4 a5 Ke5 a4 Ke6 a3 Kf7 g6 d4+ Kh4 f4 a2 h6 g5 c6 g4 b6 g3 c7 g2 f5 Ra4 f6 Ra3 b7 Re3 Nh3 g1N Be2 Nc6 b8Q Nb4 Ba3 Bg7 Ng5 Nd5 Nh7 Bb7 c8B Bc6 Nc3 Ba4 Qdc7 Qd6 h3 Qa6 Bcg4 Qd3 Rb1 a1Q Rb6 Qe1 Rc6 Qf2 Ke8 Qf3 f7 Be5 f8Q Bf4 Qf7 Bd6 Bd1 Re1 Be2 Ne3 Qa2 Nf1 Nd5 Qde3 Nb6 Qd3 Nd7 Nf6+ Kf7 Rd8 Rh2 Rc8 Rg2 Rg8 Rg3 Rg6 Kf8 Nh5+ Ke8 Qf4 Qd5 Rg5 Qa2 Qff3 Be6 Rg4 Rg2 Nhg3 Bf5 Kh5 h4 Nh1 Be6 Rf4 Rg7 Rf5 Rf7 Kg4 h5 Kh4 Rg7 Rf6 Bg4 Rg6
1RNk4/B1Rr4/nKP1Q1p1/2B2Pb1/Q1n1PQ2/1q1B2p1/2n1Pq2/1qr1N3 w - - 0 1 illegal: No possible last move
b7/1knR3B/r1pb3P/P5N1/Rn1P1b2/1PKnq1B1/1RB2qpQ/Q3N3 w - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 gxh5 Rh7 Kf2 Rh6 Ke1 Rh8 Qa4+ b5 Qc2 b4 Qd1 b3 axb3 a5 Nh3 a4 Ng1 a3 Kf2 a2 Ke1 Ra3 bxa3 Be7 Nh3 Bc5 Ng1 Bf8 h4 Kd7 e4 f5 h6 g5 a4 g4 d6 Kc6 h7 f3 h5 f4 e5 g3 a5 g2 e6 Bb7 d7 Nh6 e7 Nf7 e8B Na6 Bd3 Ne5 Na3 Nb4 Bc2 Bd6 Nh3 Ba8 Ng5 Qe7 d8R+ Kb7 Beg6 c6 d4 f2+ Kd2 f1Q h6 f3 Kc3 f2 Bf4 Ned3 Bg3 Qe3 Qe1 Rg8 h8Q Rg7 Rb1 a1B+ Rb2 Qfe2 Qe8 f1N Bh7 Q2f2 Qh5 Rc7 Rd7 Bf4 Qh2 Bd6 Kc4 Bf4 Ra2 Bc3 Rb2 Bd2 Qa1 Bd6 Rb1 Kc8 Rg1 Ra7 Rb2 Ra6 Rh1 Bc1 Kc3 Kb8 Nc4 Kc8 Nd2 Kb8 Ndf3 Kc8 Rd8+ Kb7 Ne1 Qe6 Qa2 Bf8 Nef3 Ne3 Re1 Bd6 Rd7+ Kc8 Rd1 Qe4 Ne1 Ned5+ Kc4 Nc7 Kc3 Bcf4 Ra1 Qee2 Qb1 Kb7 Ra4 Qe8 Qa1 Qee3
4N2k/3r1P2/2qbNnB1/1b4Np/1b1q2q1/rB2Q1Qp/RP4PP/KQR5 w - - 0 1 legal: proof: e4 f5 exf5 b5 c4 a5 a4 d5 cxd5 Nh6 axb5 Ng8 d3 Na6 Bh6 gxh6 bxa6 h5 Qc1 h4 Qd2 Rb8 Qd1 Ra8 Kd2 Kf7 Kc2 Kg7 f4 c5 a7 h5 f6+ Kh7 f5 e5 d4 a4 d6 h3 d7 c4 f7 e4 d5 e3 f6 c3 d6 a3 Bc4 a2 Bb3 e2 Nf3 e1B Ng5+ Kh6 Nd2 Qb6 d8N Qb8 d7 Ne7 Nc4 Qb6 Qb1 Qd4 Nd6 Nd5 Ne8 Rh7 Nde6 Bd6 d8Q Ba6 Qb8 Bb5 f8Q+ Kg6 Rf1 Rd7 f7 Nf6 Qe7 Kh6 Kc1 c2 Qc7 Beb4 Qb8 Bdc5 Qg3 Bd6 Re1 Rc8 a8B Rc3 Be4 Rf3 Bbd5 Ra3 Bg6 Qg4 Bb3 Qd4 Nc5 Qg4 Qee3 Qd4 Nc7 Kg7 Ne8+ Kh8 Nce6 Qg4 Rd1 Be7 Rd4 Bed6 Rc4 Bbc5 Kd2 c1Q+ Kd3 Qg1 Kc2 Bb4 Qef4 Ra8 Qd1 Qd4 Qfe3 Ba6 Rc7 Bf1 Qdd3 Ra7 Rc1 Ra4 Ra7 a1Q Ra8 Ra5 Qde4 Qa4 Kb1 Qc6 Qc2 Rb5 Ra2 Ra5 Ka1 Ra3 Qb1 Bb5
rbR1RQ2/B1bK1rP1/1B2P1PN/1B3Ppr/2Rn1p1Q/2n5/2Nb2n1/2k5 w - - 0 1 illegal: No proof kernel
q4b2/rrPBkn1B/r1r2pb1/1B1p3Q/2bQ1N1K/R1P1P3/1P1RR3/N7 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 f4 c5 fxe5 Bg7 dxc5 Bf8 h4 Bd6 g4 Bf8 h5 Nc6 Bf4 gxf4 g5 Nce7 Na3 Bg7 Nb1 Ng6 hxg6 Bf8 Kf2 a5 g7 h5 c6 d5 e6 f3 Kg3 f6 e3 a4 e7 a3 c3 f2 g6 a2 c7 Qd7 b6 Nh6 g8B Nf7 b7 Qd6+ Kh4 Ra4+ Qd4 Bf5 b8Q+ Qd8 g7 Bh7 Nd2 Ra7 Nh3 Bg6 Rh2 Rb7 Bd3 f1B Nb3 Be2 Bf5 Bc4 Rd2 Rh7 Re1 a1R Nf4 Ra6 Na1 Rh8 Bd3 Rc6 Ree2 Ra7 Qb4 Qa8 Bh7 Rb7 g8R Kd7 Kh3 h4 Qa4 Kd6 e8B Ke7 Bd7 Ra7 Kg4 h3 Kh4 h2 Qd1 Rb7 Qh1 Ra7 Qf3 h1R+ Qh3 Bh6 Rb8 Bf8 Rb3 Raa6 Ra3 Rf1 Nc2 Ra1 Qf3 Ra7 Qh5 Ra2 Na1 Rg8 Rb3 R2a6 Ra3 Bg7 Bc2 Rb8 Ba4 Bf8 Bb5 Rbb7
r1Q3r1/3BPR2/Q1P5/NPrn1B2/Np1k1B2/1p2b2n/R3r2P/K2qRq2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 d4 c5 dxc5 e5 f4 Ba6 fxe5 axb4 a4 b3 Bh6 b4 Bc1 Bb5 axb5 Ra7 Nd2 Ra2 Nb1 Ra8 Kd2 Ke7 c4 Ke6 e4 g5 c6 f5 c7 d5 c8Q+ Nd7 h6 g4 h7 g3 c5 d4 c6 f4 Nc3 d3 Ra2 f3 Bh3+ Ke7 e6 Kf6 e7 Ke5 e8B f2 Na4 f1Q Bf5 Kd4 e5 g2 e6 Bc5 e7 Ne5 Bed7 Ng4 Qc2 Nf2 Nf3+ Kd5 Rg1 Nh3 Ne5 Kd4 Nc4 Nf6 Na5 Rg8 h8R Nd5 Rh7 Rg5 Rh1 g1R Rf7 Rh5 Qd1 Rg8 Qe1 Bb6 Kd1 Ba7 Bf4 Bc5 Kc1 d2+ Kb2 d1R Rg1 Rd2+ Ka1 Re2 Qc1 Qg2 Re1 Qf1 Qa3 Bb6 Be8 Qd7 Bh7 Qg4 Bd7 Qgf3 Bc2 Qd3 Bb1 Qd1 Nc5 Kc3 Nab7 Nf6 Qa6 Kc4 Na4 Be3 Na5+ Kd4 Qf8 Rc5 Qfc8 Bc1 Bd3 Nd5 B3f5 Be3+
QBqn4/1P4qb/5k1B/b1P3bn/RN2P3/1p1r3P/N1b2p2/NRQ2R1K w - - 0 1 legal: proof: f4 b5 a4 e5 fxe5 h5 axb5 h4 b4 h3 b6 c6 b5 Rh6 b7 Qe7 b6 Qg5 gxh3 Qf6 h4 Rh8 h5 Qd8 d4 a5 c4 a4 d5 Ra5 Bg2 Rb5 Be4 Rb3 c5 Rg3 Bf5 Rg6 Bd3 Rd6 Bb5 cxb5 Nh3 b4 Ng1 Rc6 dxc6 Qg5 Ra3 Qe7 Ra1 Qd8 Kf2 Ke7 Kg2 f5 e4 g5 h6 d5 c7 d4 h3 a3 h7 f4 e6 b3 Rh2 d3 Be3 a2 Qf1 f3+ Kh1 g4 Nc3 f2 Nge2 g3 Nd4 d2 Bh6 d1B Nc2 Kf6 e7 Bf5 e8Q Qc8 Rb1 a1B Na2 Nc6 b8B Be7 b7 Bc3 Na1 Bc2 Qc1 Nd8 Qa4 Bg6 Qa8 Ba5 Rg2 Bf5 Rg1 Bg6 Rf1 g2+ Kh2 Qd7 c8N Qe8 Kg3 g1Q+ Kf3 Qc6 Na7 Qc8 Nc6 Bf5 Ncb4 Qg7 Ba7 Kf7 Bb8 Bg5 Kg2 Nf6 Kh2 Nh5 Kh1 Re8 h8R Bh7 Rg8 Kf6 Rh8 Re5 Re8 Rd5 Re6+ Kf7 Ra6 Rd3 Ra7 Kf6 Ra6+ Bb6 Ra4 Ba5
5BQn/p3Bb2/3qp1Pr/5NK1/1R1N1R1P/3kPQ1N/1Bq1bP2/2rr1r2 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 e3 g5 g3 f4 Bh3 f3 Bf1 h4 Be2 g4 Qb3 h3 Kd1 Nd7 Kc2 Nb6 Kd3 Bh6 Qd1 Bg5 Kc3 fxe2 Kc2 Bh4 gxh4 g3 Na3 g2 Rb1 Nc4 Ra1 Nd6 Nb1 Ne4 Nc3 Kf7 Nb1 Ng3 hxg3 Ke8 Kd3 Kd7 Ke4 Kd6 Kf4 Kc5 d4+ Kc4 b4 e1Q b6 c5 d6 h2 g4 e6 b7 Qf8+ Kg5 Qf7 b8N Qc3 d7 Bb7 d8Q Bc8 b5 Qa3 b6 Qa2 b7 Qf8 d5 Qe2 d6 Bd7 Nh3 g1R Bb2 Qf1 Nc6 Qe2 b8B Rf1 Nd4 Be8 d7 Bf7 Nd2+ Kd3 Bd6 c4 Ra4 c3 Nf5 c2 Rf4 c1R Nf3+ Qd2 Bda3 Rh6 N3d4 Qd6 Qf3 Ne7 Qg8 Ng6 d8B Nh8 Be7 Rd8 Bb4 Qc2 Bf8 Qa6 Bbe7 Qd6 Rg1 Rfd1 Re1 h1B Re2 Rf1 Rd2+ Kc4 Rd3 Bg2 Rb3 Bh1 Rb4+ Kd3 Qg3 Bd5 Qf3 Bc4 Bf6 Qc6 Nb5 Kd2 B6e7 Bg6 Kf6 Be2 g5 Bf7+ g6 Rd3 Nbd4 Qd6 Ba3 Kc3 Kg5 Rdd1 Bb2+ Kd3
r2QN3/1b4B1/3PQP1N/1krpb1n1/1nR2PN1/5Bpb/n3P3/RQ1bK3 w - - 0 1 legal: proof: h4 a5 a4 g5 d4 b5 axb5 f5 g4 d5 gxf5 g4 c4 e6 c5 Qg5 hxg5 Ra6 Qd3 e5 Qd1 Rd6 cxd6 exd4 f4 Kd7 b4 c5 g6 h5 b6 Kc6 b7 h4 g7 a4 Ra3 g3 Rc3 a3 Nh3 c4 Bg2 d3 Nd2 a2 Kf1 a1R Ne4 d2 Bf3 Ra5 Nf6 Na6 b8Q Rc5 Nf2 h3 N2g4 h2 Bb2 Nh6 g8N Nf7 N8h6 Bg7 Rc2 Rd8 Ne8 c3 Ba1 Ng5 b5+ Kd7 Qa8 Nb4 Qa3 Bd4 b6 Kc6 b7 Kb5 b8Q+ Bb7 Qc7 Rc8 Qd8 Ra8 Rg1 h1B Rc1 c2 Qe3 Na6 Qe6 Bg7 Bc3 Bf6 Ra1 c1N Bb2 Na2 Qb1 N6b4 Be5 Be7 Bh8 Bf6 Bg7 Be5 f6 d1B Ke1 Bc2 Kd2 Ba4 Rc1 Bg2 Rc4 Bd1 Ke1 Bh3
4brb1/Pkp2b2/3n2RQ/2b3nQ/r2Pp1nP/K1N4R/2B1R2P/2B2B1N w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 h5 cxd5 b6 d6 h4 g3 Bb7 gxh4 a5 b4 axb4 d7+ Kf7 Bh3 Ba6 Bf1 Qc8 dxc8B Ke8 d4 Kd8 Kd2 g5 Kc2 e5 Kb3 e4 f4 b5 a4 g4 a5 g3 f6 g2 f5 Bc5 f7 Nf6 f8Q+ Ne8 f6 Nd7 f7 Ne5 Qe1 Ng4 Qg7 Rb8 Be6 Nd6 Qd2 Rf8 Bd5 Kc8 Nh3 g1N Qh8 Nf3 Qh5 Ng5 Rg1 Rb7 Kb2 b3 Ra3 b4 Nf2 Bb5 a6 Be8 a7 Rb6 Bdc4 Kb7 Bcd3 Rb5 Nh1 Rb6 Ka1 b2+ Ka2 Rb5 Nc3 b1B+ Kb2 b3 Bc2 Rb4 Rg2 Ba2 Re2 Ne3 Ra6 Ng4 Ka3 b2 Rc6 b1B Qe3 Rg8 f8R Baf7 Qd2 Bba2 Ra6 Bfb3 Rf3 Bbf7 Rh3 Rf8 Qf4 Bac4 Qf6 Bg8 Qfh6 Bcf7 Rc6 Nc8 Re6 Nd6 Rg6 Ra4+
k1b3br/1b4Q1/p1Nb1P1P/1Q3QR1/1PR1pbK1/N3N3/P2B4/1qB2q1n w - - 0 1 legal: proof: e4 e5 c4 b5 cxb5 h5 d4 f5 g4 h4 Bd3 a6 dxe5 Bd6 e6 Bf8 e5 Ra7 Be4 fxe4 Bh6 Rb7 Qd2 Rb6 Qd1 Rc6 Bc1 Rc3 h3 Rg3 Qa4 Rf3 Qd1 Rh5 gxh5 Rf6 Bf4 Rh6 Bc1 Rh8 Bf4 g5 Bd2 g4 Qa4 g3 Qa5 Nf6 Bc1 Ng4 hxg4 Nc6 Qa4 Ne7 Qd1 Ng8 Bf4 c5 b4 d5 e7 Kd7 e8N d4 h6 c4 e6+ Ke7 g5 c3 g6 d3 b6 h3 g7 c2 b7 c1Q b8B g2 Nf6 h2 Nd5+ Ke8 e7 Kd7 Ne2 Kc6 e8Q+ Kb7 Qb5+ Qb6 Na3 g1B Nd4 Ka8 Nc6 Nf6 g8Q Bb7 Qg7 d2+ Ke2 Qd4 Qf1 Qdb2 Ke3 Nh5 Bbe5 Be7 Bc3 Bd6 Qh3 Qd1 Rc1 Qb1 Bb2 Ng3 Rc4 Qf1 Bc1 Be7 Bg5 Bf8 Kf4 d1B Rc2 Bh5 Rc4 Bf7 f3 Bd4 Rg1 Nh1 Kf5 Bb2 Bgd2 Bd6 f4 Bbe5 Ne3 Be6+ Kg5 Bg8 f5 Bf4+ Kh5 Ng3+ Kh4 h1B f6 Bf3 Qhd7 Nh1 Rg5 Bh5 Qe6 Be8 Qef5 Bd7 Kg4 Bdc8
1k2q2n/NPq1Pp1q/2Q3pP/rBK2RB1/N3q3/1q2b3/3QPQ2/1R3b1N w - - 0 1 legal: proof: b4 a5 a4 e5 d4 b5 dxe5 c5 g3 h5 f3 Na6 g4 Rb8 gxh5 cxb4 Bg2 b3 Bh3 b4 Bf1 Rb5 axb5 Nc5 Bg2 Rh6 Bf1 Ne4 fxe4 Rh8 Kd2 d5 Kd3 Kd7 Kd4 Kc7 c4 b2 h4 b3 e6 a4 h6 a3 c5 a2 e7 Kb7 e8Q Bf5 h7 Bd6 e5 Kb8 e6 Nh6 e7 Qc8 c6 Be5+ Kc5 d4 b6 d3 h5 d2 b7 Bh3 Nc3 b1Q Bg2 b2 Na4 Qe4 Rb1 Ng4 h6 a1Q Qe1 d1Q Bg5 Qd7 Qd2 Qa2 Rf1 b1Q Rf5 Rg8 h8Q Qc7 Bf3 Bg2 Nh3 Qab3 Nf2 Bf4 Qh7 Q1d3 Rb1 Bf1 Nh1 Ne5 Qg6 Q8d8 Qf6 Ng6 Qd4 Qdc8 Qf2 Nh8 Qd7 Qe8 Qd6 Qee6 Bd5 Qde4 Bc4 Qg6 Bb5 Qh7 Qe6 g6 Qed5 Qcd8 c7+ Ka7 c8N+ Kb8 Bd3 Qc7+ Qc6 Qed7 Ng3 Rd8 Nh1 Qe8 Na7 Rd4 Nb6 Ra4 Bb5 Ra5 Na4 Be3+
1N4K1/1R1P4/2B1RPBp/1P1R1p1n/2q1Q3/1p3Qn1/kPr3r1/b1br2NB w - - 0 1 illegal: No extended proof kernel
1nb2q2/1B2RNRp/qb1r1B1q/3PNr1P/1P1Q1Q1R/k2p4/2P2p2/1Q2K3 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 Nd7 d4 Ndf6 dxc5 d4 Nh3 Rb8 Ng1 Nd5 exd5 Ra8 b4 Kd7 g4 a5 h4 e5 c6+ Kd6 g6 f5 g5 f4 c7 a4 h5 e4 g7 e3 b6 f3 b7 a3 b8Q a2 g6 Be7 Rh4 Ra4 Nd2 Qf8 Bb2 Ra6 Nh3 Bd8 Qb1 Nf6 g8Q Qh6 g7 Nd7 Qf7 Rf8 g8R Ke5 Ng5 Rd6 Qb6 Nb8 Ba6 Bf6 Bb7 Bd8 Rg7 f2+ Kf1 Nc6 Qa7 Nb8 Qf3 Rf5 Nc4+ Kf6 Ne5 d3 Ngf7 Ke7 Qf4 Kf6 Kg2 f1Q+ Kg3 Be6 c8Q Bb6 Qf8 Bd7 Kh2 Bc8 Qg3 Qf3 Qf2 Qff4+ Kg2 Qf3+ Kf1 Qff4 Qd1 Qf3 Rb1 a1Q Ke1 Qa6 Ra1 Qff4 Qb1 Qf3 Qg8 Qff4 Rg2 Qf8 Qgg3 Q4h6 Qgf4 Ke7 Ng6+ Kd7 Nge5+ Kc7 Rg7 Bc5 Nf3 Qb5 Bf6 Bd4 N3e5 Qc4 Qa3 Kb6 Qab2 Kb5 Ba8 Bb6 Ra7 Qa2 Qc3 Qa6 Re7 Ka4 Qcd4 Ka3 Bb7 exf2+
Kb1rBQ2/P2nB3/2NPk2q/5R1P/p3N3/2qpR2P/1Q5p/2nRrBr1 w - - 0 1 illegal: No proof kernel
7R/1b1P2r1/1p4nK/Q2q3q/1PB1NQB1/pRPbbBNQ/1pkP2b1/8 w - - 0 1 legal: proof: e4 g5 h4 d5 hxg5 b6 exd5 Na6 a4 Rb8 a5 Rb7 Rh5 Kd7 Rh1 Nb8 a6 Ke8 axb7 e5 f4 c5 b3 a5 Na3 e4 Ra2 c4 Bb2 c3 Nb1 Nd7 Ra1 Ne5 fxe5 cxb2 Kf2 Ke7 Kg3 f5 Kf4 h5 b8Q a4 g4 e3 d6+ Ke6 d7 Kd5 b4 Kd4 e6 h4 g6 h3 e7 h2 Kg5 f4 g7 e2 Bh3 e1Q Nc3 f3 Qf4+ Qe4 Ra3 f2 Qdf3 f1B Rb3 a3 Nge2+ Kc4 Ng3 Nf6 g8Q+ Kd4 e8B Bd3 Bh5 Qe8 Qh7 Bg7 Qhf5 Bb7 Qa5 Rg8 Qf1 Bh8+ Kh6 Nd5 g5 Ne7 g6 Rg7 B3g4 Qf7 Qh3 Qe8 Qf8 Qd5 Nce4 Qef7 c3+ Kc4 Rf1 h1B Bf3 Bg2 Bhg4 Be2 Rb1 Kd3 Rh1 Kc2 Qb8 Bd3 Qf4 Rg8 Rh2 Bd4 g7 Be3 Rh1 Ng6 Rh2 Re8 g8B Re7 Rh1 Qff5 Rh2 Rg7 Rh1 Qc5 Bc4 Qfd5 Qh4 Rg8 Kh7 Qe5 Qhh6 Qcd5 Qh2 Bgf1 Qg2 Qf5 Rh6 Qh5 Qh3 Re8 Kg7 Bg2 Rh8 Ra8 Qh6 Rg8+ Kh7 Qhe5 Qf4 Rg7+ Kh6 Qh5+
2R4b/bnp3Pp/QP2k3/3pN3/K3N1PR/bnn3BP/2B3R1/Qb1B1r2 w - - 0 1 legal: proof: e4 a5 b4 b5 a4 e5 axb5 g5 f4 f5 fxg5 a4 c4 a3 b6 Ra7 b7 Bd6 c5 Bf8 b5 Ra6 d3 Rb6 cxb6 Qf6 d4 fxe4 Qd2 e3 Qc2 e4 Qd1 Qe5 dxe5 Be7 Ra2 Bd6 Ra1 Bf8 g4 Kf7 g6+ Ke6 Bd3 d5 Nf3 a2 Nbd2 e2 Bc2 Nd7 b8R Ba6 b7 Ne7 Rc8 Nf6 b8Q Bb7 Qa8 Rg8 Qa6+ Nc6 Rb1 a1B Rb2 Ba3 Ra2 Bc3 Bb2 Re8 Qa1 Rf8 Bc1 Bd4 Bd1 Ba7 b6 Nd4 Rc2 Ke7 e6 Nb3 Ne5 Bc6 Rb2 Bd7 Bc2 Kd6 e7 Bf5 e8B Ke6 Ba4 Rf7 Ndc4 Rf8 Bf4 Rf7 Nd6 Rf8 Kf2 e1B+ Ke3 Bc3 Bg3 Bd4+ Ke2 e3 Ne4 Bc3 Kd3 e2 Bd1 Bd4 Kc2 e1N+ Kb1 Bc3 Ka2 Nd3 Rg2 Ndc5 Bc2 Nb7 Bd1 Nh5 Bc2 Nf4 Bd1 N3a5 Bab3 Ne2 Bbc2 Nc6 Kb3 Nca5+ Ka4 Nb3 Nd7 Bf6 Ne5 Bh8 g7 Bg6 Rf1 Rf3 h3 Rf8 Rf5 Rf6 Rg5 Rf1 Rh5 Bf5 Rh4 Bg6 Kb5 Nc3+ Kc6 Rf5 Nc5+ Ke7 Bd3 Nb1 Kb5 Rf1 Ka4 Be4 Bc4 Bc2 Ne4 Ke6 Bd3 N1d2 Nf6 Bb1 B3c2 Ne4 Rh5 Ned6 Ne4 Nb5 Rh4 Nc3+
1k6/bp1Br1n1/np2P1R1/1N1N4/p3Q3/PbR1BbK1/PRQP1b1n/4B3 w - - 0 1 legal: proof: f4 a5 e4 e5 g4 h5 gxh5 d5 exd5 e4 d6 Qe7 Qg4 Qe5 fxe5 Ra7 Qe2 Ra6 Qf2 Ra8 Qb6 cxb6 Ke2 a4 Kf2 Ra5 Ke1 Rc5 Bd3 Rc3 Bf1 Ra3 bxa3 Be6 Kf2 Bg4 Ke1 Bc8 Kf2 Kd8 h4 f5 c4 g5 c5 g4 e6 f4 d7 Kc7 d8B+ Kc6 h6 f3 h5 e3+ Kg3 e2 h7 e1N h6 f2 Rh3 Nd3 Ne2 Bd6+ Nf4 Bf8 Bh4 Kc7 c6 Na6 Nd5+ Kb8 Nbc3 Ne1 Bb5 f1B Rb1 Bd7 Bb2 Ne7 Ba1 Rg8 h8R Rg7 h7 Bc4 Rb2 Nf3 Rg8 Bb3 h8Q Nh2 Qh7 Rf7 Rg6 Nf5+ Kf2 Ng7+ Kg3 Re7 c7+ Ka7 c8Q Bc6 Qc7 Ka8 Qf4 Ka7 Qe4 Kb8 Ne3 Bcd5 Bd7 Bc6 Qc2 Bh1 Ned5 Bf3 Kf4 g3 Nb5 g2 Be1 g1B Kg3 Ne8 Qh4 Bh6 Qhe4 Ng7 Rb1 Bg5 Bd4 Bf6 Be3 Be5+ Kh4 Ka8 Rb2 Bb8 Rhg3 Ba7 Rh3 Bh5 Rf3 Kb8 Kg3 Bg4 Bc5 Bh5 Rc3 Bf3 Be3 Bf2+
1q1bb2r/B1R4B/pP3QK1/qbp5/2P1k3/2R1p1R1/Q1b1PP2/NbQ3N1 w - - 1 2 legal: proof: h4 g5 d4 g4 b4 c6 d5 Na6 d6 Nc7 dxc7 Bh6 Bg5 Nf6 Bc1 Bg5 hxg5 Ng8 a4 f5 b5 f4 g3 c5 Rh5 fxg3 Rh3 Rb8 Rh1 Nh6 Nf3 Nf5 Ng1 Nd4 Nh3 b6 Ng1 Nc6 bxc6 b5 Nh3 b4 Ng1 Rb5 axb5 Rf8 Bd2 Rg8 Bc1 Rh8 Kd2 Kf7 Ke3 Ke6 Ke4 h5 c4 d5+ Kf4 g2 b6 h4 g6 g3 Kg5 Ke5 g7 h3 g8R h2 Bb2+ d4 Ra4 b3 Rg7 a6 Kg6 Ke4 Na3 e5 Qc1 d3 Nc2 d2 Ra3 d1B Na1 Bd7 c8Q Bc2 c7 Bb5 Qe6 Qb8 c8Q Be8+ Rf7 Bb5 Bd4 b2 Rc3 b1B Qf6 Be8 Qcd8 Bb5 Nf3 g1Q Bg2 Qe1 Rg1 h1B Rc7 Qd2 Bh3 g2 Be6 Qe1 Bg8 Qd2 Bh7 Qe1 Rf1 g1B Qd7 Bh2 Rg1 Bf4 Rg3 Bg5 Ng1 Bf3 Be3 Bg4 Qdd2 Bgd7 Bf4 Be8+ Qf7 Bca4 Qa2 Bd8 Rb3 Qa5 Rbc3 Bed7 Qf6 Bac2 Bh6 Bdc6 Bf8 Bd7 Bd6 Be8+ Rf7 Qc8 Bb8 Qc7 Ba7 Qb8 Qfg5 Kd4+ Qf5 e4 Qf3 e3+ Qf5 Bec6 Rc7 Be8+ Kh6 Bg6 Qf6+ Ke4 Kg7 Bf5 Bg8 Bh3 Kg6 Bhd7 Bh7 Be8+
6K1/2rp2R1/Nq1B3P/kbP1np1R/2BP3r/4n1N1/1Ppp1Q2/rB1Q2Q1 w - - 0 1 illegal: No proof kernel
1q3b1K/1p2QNbp/2n1r2R/N7/3p1b1P/1P1NRr2/P2QPpR1/3B1kB1 w - - 0 1 illegal: No possible last move, all moves rejected
2BQ2bk/6nN/Q3nR1n/Q5P1/rN1b2rb/Pb1b4/PBBP1R1K/2q2r2 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 exf4 Nc3 a4 Nb1 a3 bxa3 Bg7 Qb3 Bh6 Qd1 Bf8 Kf2 f5 g4 Kf7 Kg2 Kg7 e4 b5 g6 c5 e5 h5 e6 h4 d6 c4 d7 c3 e7 c2 e8B f3+ Kh3 f4 Bg2 f2 Qe1 f1R Qe4 f3 Rh2 f2 Qf5 b4 Bf7 b3 Bb7 b2 Qf4 Nc6 Qf5 Nd4 Be4 Nh6 Rg2 Rg8 Qa5 Ne6 Bb7 Qc7 d8Q Be7 Ne2 Kh8 Nbc3 b1B Bb2 c1B Nd4 Bc2 Nd5 Bb3 Nf6 Qc4 Kh2 h3 Nh7 Bh4 Be4 Bb7 Bc2 Bd5 Nc6+ Qc3 Qb5 Ra4 Qda5 Rg7 Nb4 Qc5 Bd4 Bb2 Qba6 Qc6 Be5 Bd4 Be8 Qc3 Bd7 Qb2 Re1 Qc1 Re3 Bdc4 Rf3 Bd3 Rf6 Bdc4 Rg1 Bd3 Bc8 Rg8 Kh1 h2 Kg2 h1B+ Kh2 Bhd5 Rg2 Rf8 g5 Rg1 Kh3 f1N Rgf2 Ng3 Kh2 Nh5 g7+ Kg8 Rf7 Rf1 R7f3 Rf4 Bf6 Rg4 Rf4 Kf7 R4f3 Kg6 g8Q+ Nhg7 Qgd8 Kf7 Nf8 Kg8 Nh7+ Nf8 Be5 Kh8 Rf5 Bg8 Rf6 Ba7 Bc3 Bd4 Bb2 Nfe6
2Nbqn2/2b2qKb/b1B2PbP/2RP4/Qr3Q1n/4rBN1/2r1P2R/3kBN2 w - - 0 1 illegal: No proof kernel
N5N1/n1Q3NR/1rP1q2q/3qR1q1/Kbq4k/nP1b4/Q1B1P1P1/B1Q3rn w - - 0 1 illegal: No proof kernel forced: bxLB
1Kb2NBB/1Qrbk1PN/2nb3R/q7/N4qn1/1bPP3R/2P4b/Q1Brq3 w - - 0 1 illegal: No proof kernel
2r4b/2N2rPr/1bP2Q2/2R1K2k/3BBn2/4PbR1/qQ2BPbn/N1Rq1b2 w - - 0 1 illegal: No proof kernel
R4NR1/2PN4/2nK2P1/r2R1QB1/q1n1P1Qb/1B3B2/1kP3rr/1r2nqrb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 f5+ Kd4 d5 g4 h5 c6 f3 b6 f2 c7 a4 b7 f4 b5 h4 g6 h3 e3 a3 g5 h2 b6 a2 g7 f3 g6 Nh6 g8B+ Nf7 Qd3 Qe8 Nh3 Qa4+ Qc4 Be7 Bd3 f1R Bh7 f2 Qb4 Bh4 Kc5 Ke5 Nd2 d4 Ng5 Nc6 b8R Bb7 Be4 d3 Nb3 d2 Rg8 d1R Bf3 Nd6 Qg4 Rg1 Ne6 f1Q Nf8 Rg2 Rg1 h1N Bd2 Bc8 b7 Rb1 b8Q Ra5+ Qb5 Nc4 e4 Nf2 Bg5 Be6 Qh5 Bh3 Rh1 Re1 Rd1 a1R Qg4 Rb1 Rg1 Qe2 Rh1 Reg1 Rd8 Qf1 Ra8 Rg3 Rh2 Bg2 Rh3 Bh1 Rh2 Nh3 Rd2 Nf4 Rd3 Ng2 Rd6 Nb4 Rd4 Ne1 Rdd8 Nd5 Kc6 R1g2 Nc5 Kd4 Ncd7 Kc3 Kc5 Rg1 Kc6 R3g2 Kc5 Na3 Kd6 Ne7 Qbf5 Nc6 Re8 Nd4 Re5 Kb2 Rd5 Nc6 Rg7 Bf2 Bg8 Rhh2 Bf7 Bh4 Rg8 Qa6 Rd1 Q6b5 Bb3 Qf1 Rd5 Nc4+
K7/1P3BQN/1R3Nrb/1P2n1Pq/1N2P1rb/1Qnq1bqq/1q4R1/1B2B2k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 a5 b4 c5+ Kc4 Ke5 g4 Ke4 d4 h5 e3 f3 g6 f4 b6 h4 Kb5 a4 g7 f2 d6 a3 b7 a2 d5 f3 d7 h3 d6 c4 Qe2 h2 Nh3 c3 Qb2 c2 Rg1 h1Q Qb3 Qc7 d8Q Nc6 d7 Ra6 Qe7+ Ne5 d8N Nf6 g8B Rh4 Nc6 Bh6 Rg2 Nd5 Bd2 c1B Bf7 Nc3+ Kc5 Be6 b5 Bd5 Be1 Bb2 Bc4 f1Q Qf8 f2 Bd3+ Kf3 Qg7 Qb8 Nb4 Rg6 Bf5 Bc6 Kb6 Qd3 Ka6 Qbd6 Ka7 f1Q Ka8 Qc7 g5 Rg4 Nf2 Qh5 Ne4 Qfh1 Nf6 Q1h3 Nh7 Bc1 Nd5 Bd2 Na3 Qd6 Rd1 a1Q Ndf6 Qb2 Nc2 Be4 Nb4 Bd5 Bg3 Be1 Ra1 Bf2 Ra6 Qc7 Rb6 Bc6 Bh2 Bh4 Bg3 Qcd6 Be1 Qc7 Rf2+ Kg3 Be4 Qcd6 Bf5 Bg2 Re2+ Kh2 Be4 Kg1 Bf5 Bf3 Rg2+ Kh1 Be4 Qf1 Bb1 Qdd3 e4 Qg1 Kb8 Qgf2 Ka8 Qfg3
2Nr2q1/n5kr/Q2r1br1/1PK3n1/Pr1Q1P2/N2BBb1P/R3N1Rr/r6R w - - 0 1 illegal: No proof kernel
n5RB/3q2q1/bn3q1P/P2NN1r1/Pr1K1P1Q/1R4br/3Bk1n1/1Qn3RB w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 h4 Ke5 a4 Kf4 f3 g5 f6 e5 f7 c5 d6 b5 d7 c4+ Kc3 b4+ Kb2 g3 h5 g2 Ra3 c3+ Kb3 g4 Kc4 b3 Rh3 g3 Kd5 b2 Ba6 c2 Qf1 e4 d4+ e3 Bb5 Nf6+ Kc4 Ba6 d5 Ne8 d6 Qf6 d8R Nc7 d7 Bd6 Nc3 b1Q Bd2 c1N f8Q Qh7 Qe7 Ra7 Rb3 Rb7 Rh1 Na8 Rf8 Be5 d8B Nd7 Rg8 Ndb6+ Kc5 Qhf5 Bc6 Qd7 Qd3 Rb8 Qb1 Rh6 Be1 e2 Bd5 Ke3 Bd2+ Kf2 Bc7 Bf4 Be5 e1N Bb7 Rh7 Nd5 Rh8 Kd4 Rh7 Nh3+ Ke2 Ng5 g1R Nf7 g2 Bc6 Bg3 f4 Rg7 h6 Rg5 Bb7 Rf1 Rg1 Rf3 Qe6 Re3 Qh3 Rf3 Qh4 Re3 Rh1 g1Q Bc6 Ng2 Bb7 Qfd8 Bh8 Qf6+ Ne5 Bh2 Bc6 Rh3+ Be3 Bg3 Bb7 Qd1+ Bd2 Qc2 Rg1 Qcc7 Bc8 Qdg7 Bf5 Qcd7 Be4 Ne3 Bh1 Ng2 Rd1 Nc4 Rf1 Rb4 Rg1 Ncb6+
RNQq1kBB/4b3/2P1n1R1/1n1r1qPr/1bR1P1n1/8/rN1N2P1/K1b1Q2b w - - 0 1 illegal: No possible last move, all moves rejected
R7/B3Q2n/q1P2qN1/RrP3Q1/bbr3bq/R1PnP1n1/1kb2Q1N/5K1B w - - 0 1 illegal: No proof kernel
bb5Q/2n1k3/P1Q3RB/Q5R1/N4PP1/1rPrn2B/Nrnq3q/2B1n1Kb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 g4 b5 a4 d5 f4 e5 Kf2 h5 a5 e4 c6 b3 c7 b4 c3 b2 f6 h4 f7+ Ke7 g6 e3+ Kg2 b3 g7 e2 Ra4 e1N+ Kf2 h3 Nf3 d4 Bb5 h2 Qd3 Bb7 c8Q Nf6 g8Q Nd5 Qdc4 d3 Ng1 d2 Qf5 d1Q Qc6 Na6 Nd2 b1N Ne4 b2 Bf1 Ne3 Bh3 Na3 Nc5 b1R Ne2 Nc7 a6 Rb2 Ra5 Nac2 Na4 Rb8 Rb5 Rh4 Qh8 Q8d2 Qfh5 Ba8 Rg5 Bg7 Rg6 Bf6 Qa5 Be5 Rg5 R8b3 f8B+ Kd8 Bh6+ Ke7 Rf1 h1B Kg1 Rh5 Rf3 Bd6 Rg6 Rd5 Rg3 Nf1 Rd3 Nfe3 Rd4 Be5 Rc4 Rd3 Rc5 Nb5 Rd5 Bb8 Rdg5 Nc7 Nd4 Na1 Nc2 Q1e2 Nb4 Nac2 Na2 Qh2#
1K1N2q1/1Brk1q1Q/P5Qr/n1P2b1P/1r1NR3/7b/RPR1n3/3rbBBq w - - 0 1 illegal: No proof kernel
2K3n1/qbB4Q/P4n1P/1Bk5/1N1r1P2/Pr3qN1/r1B3QQ/1Rb1rqRn w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Ke2 g5 Kd3 b5 Ke4 d5+ Ke5 Kd7 h4 Kc6 c4 g4 h6 d3 h7 g3 c5 d2 h5 d4 h6 d3 f6 g2 f7 b4 Qe2 d1Q Na3 d2 Rb1 b3 Nc2 Nd7+ Ke6 b2 f4 Bg7 f8Q Qb6 Qh5 Be5 Qg7 Bb7 Ne2 g1Q Qh2 Ndf6 Ng3 Qf3 Qg6 d1N Bd2 Qgf2 Rg1 Qa7 Ba6 Qf1 Bb5+ Kc7 c6 Nf2 Qg7 Nh1 Nb4 Bc3 Be3 Bd2 Qg5 Bc1 Bb6+ Kb8 c7+ Kc8 Kf5 e5 Ke6 e4 Qg7 e3 a6 e2 a3 Rb8 Qg6 e1R+ Qe4 Ne7 Ba5 Rd8 h8Q Neg8 Qh7 Rd4 Qee2 Red1 Qeg2 R1d2 Ba4 Rf2 Bc2 Rfd2 Kf7 Kd7 c8B+ Kd6 Bd7 Re8 Bc7+ Kc5 Bc6 Re3 Bb5 Rb3 Ke6 Nd5 Ra1 b1R Kd7 Re2 Kd8 R1b2 Rb1 Re1 Kd7 Ra2 Kd8 Ba8 Kd7 Ndf6+ Kc8 Bb7+
6r1/qkB3PR/Nn1bbr2/3n1Q1Q/2nq2P1/2PrP2K/NRb5/1R1b1Q1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 a5 Kg3 h5 b4 f5 e6 d5 e3 f4+ Kh4 a4 g4 a3 b6 f3 b7 f2 c3 a2 e7 Kd7 e8Q+ Kc7 b5 d3 Qb3 d4 Qc2 d2 Kh3 d1B g6 h4 g7 d3 Ne2 d2 Na3 Qd4 Rb1 a1Q Qce4 Rh6 Nc2 Rf6 Ba3 Be6 Qh5 Nd7 b8R Ne7 Qef5 Nd5 Nb4 Bd6 Nc1 N7b6 Bg2 f1N Nca2 Bc2 Rb7+ Kc8 Na6 d1B Rh2 Rb8 Bh1 Nd2 Bb4 Ndc4 Ba5 Nd7 Bc7 N7b6 Nc1 Qa5 Na2 Qa3 Nc5 Qa7 Na6 Ra8 Rb8+ Kd7 Rh8 Rg8 Rh7 Kc8 Rg2 Kb7 Rd2 Be4 Rdb2 Bec2 Qf1 Bb4 Kh2 h3 Kg3 h2 Kh3 Na8 b6 Bd6 Qhf5 Kc6 b7 Nab6 b8Q Bg3 Q1f3 Bd6 Qe8+ Kb7 Qg3 Qe5 Qeh5 Qd4 Bg2 h1R+ Qh2 Re1 Qg1 Re2 Bh1 Rd2 Qgf1 Rd3
NRQ4Q/K2n1rP1/3n3q/2B3P1/bb4B1/2Prb1rQ/N2rN1Pq/R1n4k w - - 0 1 illegal: No proof kernel
1R2b3/2B3PN/2qq3n/3R1P1B/Qb2n1Nk/5PR1/1r1b1PKq/br1n2NQ w - - 0 1 illegal: No possible last move
1n1b1NQ1/1nB2Kr1/2B4P/1qbB1bQQ/2N1R3/b3r1PR/1PP4b/2r3bk w - - 0 1 illegal: No proof kernel
bRrQ2BK/4QnrR/2N1r2P/N3N3/2P2k2/3P1B2/b2nP2b/1qBnbn2 w - - 0 1 illegal: No proof kernel
1QNQK3/B3r1rN/1Pr1n1b1/2rR4/2P1b1b1/qQ1n4/BP4Pn/1RB3bk w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 h5 Ke4 a5 Ke5 d5 c4 a4 f4 h4 b6 h3 f6 Kg6 f7 d3 Qf3 d4 Qg3 Kh5 f5 h2 f6 d2 g6 d1B g7 d3 Qf3+ Kh4 Qd5 Kg3 Qe6 d2 Ra3+ Qd3 Qd5 Bdg4 Nh3 d1B Bh6 Bc2 Ng5 Bb7 Nh3 Na6 Nd2 Rh7 Be2 Ra7 Rc3 a3 Ng1 a2 Nh3 a1R Bd1 Ra5 Qb5 Be4 Ng5 Nc5 Qb3 e6 Re1 h1R Rg1 Qe3 Rd3 Kh2 Rd5 Re7 Kd6 e5 Rf1 Ne6 Re1 Bg6 Nde4 Rc5 Rf1 Bd3 Bc2 Qh3 Rb1 Re1 Bd1 Kh1 Bc2 Rf1 Bd1 Re8+ Kd7 Rec8 Nd6 R8c6 Nc8 e4 Ke8 e3 Bc2 e2 Bd1 Ne7 g8Q Rg7 Nh7 Nf5 Bc1 Nfd4 Qh8 Bge4 Bc2 Bd6 f8Q e1N f7 Bh2 Qfg8 Rf4 f8B Rff7 Bd6 Ndf3 Bb8 Bg1 Ba7 Nh2 Qf8 Qg3 Qe7 Bg6 Qd8 Bde4 Qf8 Nd3 Qfd6 Qh3 Qb8 Nd4 Qc3 Ne6 Bb3 Qf3 Qb4 Ne1 Ba2 Qa3 Qa4 Nd3 Qb3 Re7#
1r2nqn1/1b1qkbQ1/1Q6/1P3b2/2rPN3/K1bP1B2/QP3Rqq/BR1NR3 w - - 0 1 illegal: Other
5B2/1r1n1P2/kNn1Q3/nrn2rN1/2N1b1Pq/2PBPRKR/1r2Q2R/2b4q w - - 0 1 illegal: No proof kernel
qrnN4/3P3q/1QRb1QNP/1bP3nk/B1PB1r2/1b3N1r/3R1B2/rK2b3 w - - 0 1 illegal: No proof kernel
k6r/B2P1nqR/1RbPr1b1/P1P1b2N/N1Bqb3/2rQ1N2/B4nK1/1r3Q2 w - - 0 1 illegal: No proof kernel
q1R1q1BK/PB1b3q/2P1Pb2/2nb1k1N/3B4/1P4R1/1Q3q2/b1rnNQQr w - - 0 1 illegal: No possible last move
4rRq1/1n3N2/NqNrQ3/1P1P2B1/1R5P/1PQ1bk1b/B4pn1/QK1b1q1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Ke7 d4 Kd6 Kd2 g5 Kc2 a5 e4 c5 h6 f5 h7 g4 b3 c4 Nd2 g3 Nh3 f3 Nf4 f2 Bg2 f1B Nh3 f4 Ra2 f3 Nf4 c3 Rh2 f2 Bh3 g2 Ne6 g1Q Qg4 a4 Kb1 a3 Qf3 Bh6 Nc7 Ne7 Na6 Be3 Bf5 Qgg8 Rg2 Nbc6 Rg4 Qb6 Ra1 Ng6 e5+ Ke7 e6 Kf6 e7 Nd8 e8Q Be2 d6 Bd1 d5 Nb7 d7 Nf4 d8N Ng2 Qg6+ Ke5 Rb4 Ra7 Bc2 Bh3 Nc4+ Kd4 Nf7 Ra8 Qgg3 Re8 Qd6 Rd8 Qe6 Rd6 Bf5 c2+ Ka2 Bh6 Bg5 c1N+ Kb1 Ne2 Bd3 Ng3 Nce5+ Kc3 Nc6 Nh1 Bf6+ Kd2 Bg5+ Ne3 Ra2+ Ke1 Be4 Ng2 Qc3+ Kf1 Ra1 Ke2 Bd3+ Kf3 Ra2 Qb8 Qa1 Rhd8 h8Q Re8 Qhc3 Qa8 Bd8 Be3 Bg5 Re7 Re2 Qg8 Bc2 Re8 Bd3 Bf4 Re5 Be3 Rf5+ Nf4 Rf6 a2+ Kb2 Ra8 Qb1 Qa5 Nfd8 Qb6 Rf8 Bc2 Nf7 Ng2 Bf5 Re8 Qc1 Bd1 Bb1 Be2 Kc2 a1Q Ba2 Red8 Q1b2 Qf1 Qa1 Bd1+ Kb1 Re8
1q1B2nR/2Q5/3K2RQ/PrN1Q2B/3r2bb/1bp1n1PB/qPP1k2r/1N4q1 w - - 0 1 illegal: No proof kernel
1R1q4/q1r3Q1/Pbk3bN/4nQpP/1P3N1K/rqB1Q3/b1Br1RP1/R6n w - - 0 1 illegal: No possible last move, all moves rejected
r1Nk1bb1/1Q2R1Q1/P1r1n2K/P3Nn1N/qb1B3q/1B2Pn1P/1p2R3/1B2q3 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 Kf2 c5 Ke3 g5 a4 f5 d4 b5 d6 b4 d5 b3 h3 g3 d7+ Ke7 a6 b2 e6 g2 d6+ Kf6 e7 g4 Kf4 c4 e8B c3 a5 c2 Be3 c1Q Nf3 g1Q Bf7 g3 Qd5 g2 Rh2 Qe7 d8Q Qc6 d7 Rh6 Na3 Qa4+ Nc4 Nc6 Qc7 Nd4 d8N Be6 Re1 Qh1 Qe4 g1B Qeb7 Bd5 Nb6 Ne6+ Kg3 f4+ Kg4 Bf2 Ne5 f3+ Bd4 Rg6+ Kh5 Nh6 Bg2 Nf5 Nc8 Be3 Qd7 f2 Be4 f1N Bb1 Bd2 Rf2 Bb3 e3 Qeb4 Ree2 Nh2 Rf4 Qe7 Re4 Qe1 Qdc7 Bb4 Qc3 Nc5 Ne6 Nf3 Nf4 Ba2 Bb3 Ne6 Nc6+ Kf7 Ne5+ Ke8 Qcc7 Qf6 Qg7 Kd8 Ned3 Nc7 Re7 Ne6 Ne5 Rg1 Rg2 Qfh4+ Kg6 Rf1 Nh5 Rf2 Rh2 Rc2 Re2 Rc6 Kh7 Nf4 B3c2 Bf7 Bd1 Ne6 Bb3 Bg8+ Kg6 Nd6 Kh6 Nf5+
N2QB1Kb/qn1nrP2/2RQ2Nr/4BR2/2PP4/1P2BrQ1/q1b2pqb/5k2 w - - 0 1 illegal: No proof kernel
2b2R1N/b1NBPrR1/1qP2K2/n7/B2Qp1q1/3nP1Pk/rq5n/1b1N2QB w - - 0 1 illegal: No possible last move
3rB2Q/n2PnP1b/q1N4P/b2nK1r1/Pp5N/1N1kB1QB/R2r1R1b/2q5 w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Kd4 g5 h4 b5 f4 e5+ Ke4 Kc5 a4 g3 f6 g2 a6 g4 d6 g3 d3 Ne7 h5 Nbc6 d7 Na7 Nf3 g1N h6 g2 f7 Ne2 d4+ Kc4 f5 g1R f6 c5 d5 Qa5 d8N Rg5 Bh3 Nf4 d6 Nfd5 Qe1 Rhg8 Nh4 Bf5+ Kf3 Kd4 Rf1 c4 Nd2 c3 Nb3+ Kd3 Qg3 c2 Nc6 Bh7 Rf2 Rd8 Be3 c1Q Raa2 Bg7 f8Q e4+ Kg2 Rd7 f7 Be5 Qg7 Rgd8 Qh8 Nac8 a7 Qa6 a8B Na7 Bb6+ e3 Kf3 e2 Be3 e1B Bb7 Bf4 Bc8 Rb7 Bcd7 Ba5 Be8 b4 d7 Rb5 Qg2 Bh2 Qg3 Nf6 Kf4 Rbd5 Nf5 Rd6 Ke5 Nfd5 Qf4 Rgg6 Nh4 Rg2 Qg3 Rg6 Rf3 Rd2 Rf2 Rg5+
1q3q1B/1PK4N/b1P5/N2RnBbQ/np2RnP1/rq1B1Pk1/R7/Q5rr w - - 0 1 illegal: No proof kernel
1q1B4/P1RN3r/1q1bn3/kNQrp3/B2BQPr1/2bqP3/1b3P2/2n1K1QR w - - 0 1 illegal: No possible last move, all moves rejected
NnN4q/5BBr/2PR1QPR/R2p3n/P1rPn2B/3b4/3r2b1/Qrrk2K1 w - - 0 1 illegal: No proof kernel
1N2Rnn1/6bb/PnrN2QP/R3q3/1KP4Q/p2b3B/rbNPkB2/2R1b3 w - - 0 1 illegal: No proof kernel
2b3rr/2bb1PN1/P1q1Rb1B/4QQp1/RNP5/2K1QPb1/4Br1N/2n1n1k1 w - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 Kf7 c4 Kf6 h4 Ke5 a4 Kf4 h5 e5 a6 b5 c6 d5 f3 Kg3 c7 Kf2 a7 g5 f6 d4 h6 e4 h7 d3 a5 e3+ Kc3 b4+ Kb3 g3 f7 e2 a6 e1B Ra5 d2 Bh3 g2 Ra1 Nd7 Ra4 Qf6 Na3 Ne5 Bb2 Nd3 Ne2 g1B Nc2 Bd6 Bf1 Nh6 Qc1 d1R Ng3 Rd2 Be2 Ng4 Nf1 Ne3 Rh6 Ng2 Nh2 Be5 Bc3 Qc6 Re6 Bf6 Ba1 Rb8 a8N Bd7 Be5 Rbg8 Bd6 Bc8 Bf8 Bd7 Bh6 Bc8 Nf1 Bh2 Qa3 Bd7 c8Q Kg1 Nc7 Beg3 Ne8 Nge1 Ng7 Bc7 Qc1 Bhd6 Nh2 Bg3 Qb7 Bc8 Qb5 Bd7 Qe5 Bc8 Qa3 Nc1+ Kb2 b3 Kc3 b2 Nb4 b1B Qb3 Rgd8 Qa3 Rhg8 h8Q Bf5 Qh7 Rh8 Qb3 Rdg8 Qa3 Bg4 Qf5 Bh3 Bf1 Rf2 Be2 Ncd3 Qc1 Bd7 Qcf4 Nc1 Qe3 Bg2 Qg6 Bh3 Re7 Be8 Qb1 Bc8 Re6 Bed7 Qbe4 Bb7 Qf5 Bbc8
1q1bn1r1/n1Q1Np2/r1b1R3/3QrP1K/n6P/1QBBRRPn/n1PN2k1/8 w - - 0 1 illegal: No proof kernel
2n1bN2/1p1nQ2K/1n2BrR1/Q5QP/qR1RN3/1Pnr4/k1P1n1PB/b1r5 w - - 0 1 illegal: No proof kernel
2N3kn/Pr1Bb2b/2P2b2/n1B2N2/4bPK1/3r2R1/PQ1QbpRn/BR2q3 w - - 0 1 illegal: No proof kernel
2q5/P4k2/1pN3n1/3rRbP1/n1bP1N2/1b1BP2b/Q1KR1QB1/b3BrnN w - - 0 1 illegal: No possible last move
2R2n1k/bN2nBN1/2b5/5rb1/1rQR1prB/P4QB1/1PNKPPq1/3r3n w - - 0 1 legal: proof: d4 a5 c4 b5 g4 bxc4 Be3 h5 gxh5 e5 dxe5 a4 Ba7 Qh4 Qxa4 Qf6 Qd1 Qd8 h4 d5 a3 f5 h6 Kf7 h7 g5 e6+ Kg7 h5 c5 e7 g4 e8Q d4 Qe6 c3 Qc6 d3 Nh3 g3 Qb7+ Bd7 Qc7 c4 Qc8 c2 Bg2 c1B Bd5 c3 Nd2 g2 Ng5 g1R+ Nf1 c2 Bf7 Bc5 Rh4 Ne7 Rg4 Bb6 Rd4 Rg4 Ne3 Ba4 Qa6 Nd7 Bb8 Nf8 Bc7 Rb8 h6+ Kf6 Bd6 Ba7 Ne6 Rb4 Qc8 Rhg8 h8B+ R8g7 Qc5 Qa8 h7 Qe4 Qd2 Qg2 Qdc3 Be8 Qd5 Rf4 Qf3 Bb5 Nc4 Be3 Rd1 c1N Qc2 Na2 Rc1 Rg4 Bh2 Bh6 Ne3 f4 Qb3 Bd7 Rc8 Nc3 Qc4 Ne4 Nc2 Ng3 Kd1 Nh1 Bg3 Bc6 Ke1 Kf5 Kd1 Rg8 Bf6 d2 Bfh4 R4g5 h8N Kf6 Bh5 Rg6 Nf7 Rg7 Nd6 Rf7 Nd8 Kg7 N8b7 Kh8 Ne8 Rg4 Ng7 Rf5 Bf7 Bg5 Na1 Bc5 Kc2 d1R Kc3 Rc1+ Kd2 Ba7 Nc2 Rd1+
1K2nrR1/b7/1k2PP2/1BrnBQr1/R1P1N1N1/1rq5/b1n1p1PQ/1b3Q1B w - - 0 1 illegal: Other
k7/r2Rr1bP/P1b3KN/B2r2r1/3qbBn1/n1Rp1Q1Q/2PP1n1B/1N1N4 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c6 b4 Ra7 bxa5 Ra8 Bb5 cxb5 Ke2 e5 Kf3 g5 Ke4 d5+ Kd3 Kd7 a4 Kc7 f4 g4 h4 d4 Ke4 b4 a6 b5 h6 d3 a5 b3 a7 Kb7 f6 b4 f5 g3 f7 g2 h5 b2 h7 b3 f6 Nd7 Kf5 e4 h6 e3 Qg4 e2 Qh3 e1R Ne2 g1R Nec3 Bg7 f8B Rgf1+ Kg6 Nc5 f7 Nf6 Bd6 Re7 f8B Rf5 Nd1 Nce4 Bf4 Ng4 Ra3 Nef2 Rh2 Rg8 h8N Bd7 Nf7 Bc6 h7 Qd5 Rg2 Qd4 Nh6 Rd8 Rg1 Ka8 Rg2 Rdd5 Rg1 Rc7 B8d6 Re8 Bh2 Re1 Bdf4 Ree7 Re1 Rb7 Re6 Rbc7 Rd6 Rb7 Rd7 Rc7 Nbc3 b1B Bb2 Ba2 Nb1 Rb7 Bc3 b2 Rb3 Rc7 Na3 b1N Bb4 Nc3 Nb1 Nb5 Rc3 Na3 Bbd6 Rb5 Bc5 Bad5 Bb6 Rc8 Bbc7 Be4 Bd8 Rbd5 Bdc7 Kb7 Bb6+ Rc7 a6+ Kc8 Ba5 Rb7 Bb8 Rc7 a8Q Ra7 Bhf4 Bf3 Rd6 Rb5 Bac7 Bd7 Bg3 Ra5 Qe4 Rad5 Ba5+ Bc6 Rd7 Bg2 Qe2 Bh1 Bbf4 Be4 Rd6 Kb8 Rd7+ Ka8 Bh2 Rc5 Qee3 Rcd5 Qef3 Rg5#
kq4B1/1b4p1/1QQ1r1P1/N2P4/rPr1R1KP/2Q3Nn/bBnR4/R1n1b2b w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 Kf2 Kd7 Kf3 f5 d4 a5 h4 c5 g4 Kc7 e4 Kb7 e5 a4 b6 a3 b3 c4 g5 a2 d6 c3 e6 c2 d7 Nc6 d5 Nb4 e7 Ra6 e8Q Ka8 g6 Bb7 Qe6 Nf6 Bg2 Ng4 Nd2 Qb8 d8Q Nf2 Bb2 c1N Qhg8 Nc2 Ne2 Bb4 Qc6 Nh3 Nc4 Be1 b4 Ra4 Qge6 Re8 Qe5 Re7 Qc3 Re6 Rb1 a1R Ng3 R1a3 Ra1 Ra2 Rh2 R2a3 Qe3 Rc3 Na5 Rc4 Bf1 Qc8 Rd2 Qb8 Kg2 f3+ Kh2 f4 Qc3 Ng5 Bh3 f2 Qdf6 f1B Qd8 Re8 Be6 f3 Bg8 f2 Qdf6 Bd3 Kg2 Nh3 Kf3 Be4+ Kg4 f1B Qfe5 Rd4 Qf5 Qc7 Qb5 Bc8 Qe6 Bc4 Qbd7 Ba2 b7+ Kb8 Qdd6 Rc4 Qd8 Ka7 b8R Bb7 Qc6 Re7 Rc8 Qb8 Qdb6+ Ka8 Rf8 Re5 Rf4 Bh1 Re4 Re6
Q2q3n/3P2N1/R2P4/b2NQ3/B1k1PR1P/pr1r1R2/n1N3nn/B2K1brb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 Kd6 d4 g5 h6 c5 b6 f5 b5 a5 e3 a4 b7 f3 b6 f4 h7 c4 Kd2 c3+ Kc2 f2 Bb2 f3 Qe2 g4 Nh3 g3 Kd1 g2 Ng5 g1R Rh3 Nh6 Ne6 Nf5 Na3 Nd7 b8N Bb7 Ng7 Ne5 Nc2 Nf7 Na6 Rb8 Nc7 Bc6 b7 a3 Qb5 Rg8 h8R Be7 Rh5 Nh8 Rh6+ Bf6 Qe2 Rg3 Bg2 f1B Rb1 f2 Ba1 Rf3 Rb4 Rg3 Bf3 Rg1 Rg3 Re8 Qa6 Re7 Bh5 Rd7 Bg6 Be7 Qa8 Bf6 Rf3 Be5 Be8+ Bf6 Ne1 c2+ Kd2 c1N Kd1 Na2 Nc2 Ne7 Ra4 Neg6 Ra6 Nf4 Rh5 Re7 Rf5 Ng2 R5f4 Rd7 Nce6 Rc8 b8Q+ Rcc7 Qb2 Rb7 Nc7 Rb3 Qc3 Bc4+ Qe1 f1N Qg3 Nh2+ Qe1 Bf1 Qe2 Ke7 d6+ Kf8 d5 Bb7 Nf5 Bc3 Ng7+ Kg8 Qe1 Ba5 Qc3 Re7 Ba4 Rd7 Nce8 Bc6 Nf6+ Kf7 Qe1 Rdb7 d7 Rd3+ Qd2 Rbb3 d6 Rdc3 Qd4 Bd5 Nge8 Ke6 Qc5 Bb7 Nd5 Ke5 Ng7 Bc6 Rf8 Ke4 R8f4+ Kd3 Nf6 Be4 Qe5 Kc4 Nd5 Ne1 Rf2 Rd3+ Rd2 Rd4 Rd3 Bh1 e4 Ng2 Nc7 Bd2 Rdf3 Rdd3 Nd5 Ba5+
1q2q1Q1/1qQ1q1Nn/3bP1K1/3kPpB1/3P1P1r/1Rr2qR1/1n4B1/2Q1NbN1 w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 e5 d3 g5 c3 e4 dxe4 d4 cxd4 gxh4 Kd2 Kd7 Kd3 Ke6 g4 a5 f4 c5 b4 h5 g5 a4 e3 a3 b6 h3 g6 h4 b5 a2 b7 h2 e5 c4+ Ke4 h3 g7 c3 b6 c2 Nd2 Ra3 Rb1 a1Q Rb3 Nc6 b8Q Rh4 b7 Qb1 Bg2 Nb4 Qc7 Nd3 b8N Nb2 Ndf3 Ba6 Nc6 Bd6 Ne1 Qe8 Ne7 Bf1 Nf5 f6 Bd2 c1Q+ Qdc2 Qd1 Bb4 Qdh5 Ba5 Qe7 Bb6 Qhe8 Bc5 Nh6 g8Q+ Nf7 Bb6 Nd3 Qc1 Nb2+ Kf3 Kd5 e6 Ng5+ Kg3+ Qe4 Ng7 f5 Ba5 Nh7 Bb4 Be5 Bd6 Qb8 Bc5 Qee8 Be7 Bd6 Bg5 Qe7 Ngf3 Qbe8 Rg1 h1Q Ne5 h2 N5f3 Rg4+ Kh3 Rg3+ Kh4 Qe5 Rb8 Rc3 Rb3 Qb5 Kh5 Rh3+ Kg6 Rh4 Bh3 Qb8 Rg3 Qb7 Ng1 Qf3 Bg2 h1Q Nh5 Qh8 Ng7 Qb5 Qd7 Qb8 e4+ Kc4 e5 Kd5 Qf7 Qhc8 Qc7 Qcb7 Qg8 Qh2 Bh1 Qe2 Bg2 Qeb5 Qh8 Q5c6 Qg8 Qce8+
Br3brk/QN3P2/R2PN1Q1/1p2PRn1/Q1bq1n2/1P2Bq2/n2KN1n1/3n4 w - - 0 1 illegal: No proof kernel
R2K4/Bp1PQ2q/nb2Qnrb/k2P2Nb/1r3P2/bbq2P2/2BR3Q/2NB4 w - - 0 1 legal: proof: h4 d5 c4 f5 cxd5 g5 hxg5 a5 b4 axb4 e3 f4 exf4 Ra7 Bd3 Ra4 Bf1 Ra8 d6 Ra5 a4 Qd7 g6 Kd8 g4 c6 Ke2 Rf5 d4 e5 Kd3 h5 Ke4 b3 f3 b2 d5 c5 g7 c4 g5 h4 a5 c3 g6 c2 a6 h3 a7 h2 a8Q Qc6 Qa3 Rg5 Qe2 Qc3 Nh3 Rh6 Be3 c1B Nd2 Bg4 d7 Kc7 Nb3 b1B+ Qc2 Bb2 Be2 Ba2 Rhd1 h1Q Nc1 Bb3 Qe7 Qh2 Ra8 Ba3 Rd3 Na6 Bd1 Qh1 Rd4 Kb6 Qe2 Ka5 Rd2 Rf5 Qf2 Rf6 Ba7 Rb6 Qe2 Rh7 Ng5 Rh6 Nh7 Qh4 Qh2 Rb5 Qf7 Qe7 Ng5 Bh5 Qf6 Rb4+ Kf5 Qe8 Nh3 Qb8 Ke6 e4 Ng5 e3 Kf7 e2 Qe7 Nf6 g8Q Bg4 g7 e1B Qh8 Rg6 Q8h3 Bh5 Qhe6 Bf2 g8B Bh6 Bh7 Bb6 Qee2 Qh8 Q2e6 Rg8+ Bg6 Bg4 Bf5 Rg6 Bfc2 Ng8 Ke8 Qh7 Na2 Bh5 Nc1 Bg1 Kd8 Nf6 Q6d6 Be3 Qde6 Bb6+
2rR3n/PR1N1KPk/Qbq4B/5Pr1/2B2N1Q/P1NbQn2/q1n3p1/6nn w - - 0 1 illegal: No proof kernel
1R3qr1/8/k3Bn2/2n1K3/b2Q1Pp1/RPNrrQP1/2RNP2q/Nrn2bB1 w - - 0 1 illegal: No proof kernel
5NBK/2B3rQ/6b1/nBP1r3/1q1P3Q/1pbNqP1R/RqkPb1N1/4n2b w - - 0 1 illegal: No proof kernel
4rKQq/b1n5/N4nR1/QPqP1qr1/B3p3/P4RB1/PQN2bb1/2R2qk1 w - - 0 1 illegal: No proof kernel
2Q1KN1b/R1q2qQ1/3k1N1P/2nBn1P1/1NP2Rr1/1Prp1bB1/2Rr4/5n1n w - - 0 1 illegal: No proof kernel
1BbRNN2/1b2r1q1/B1R2n1p/2r4P/n1PQ2RQ/P1r1b1P1/2q5/1r2k1KQ w - - 0 1 legal: proof: e4 a5 d4 d5 exd5 c5 dxc5 g5 b4 axb4 f4 Nf6 fxg5 Ng8 Kf2 Kd7 c4 e5 h4 b5 a3 f5 g6 f4 g7 b3 d6 Ke6 d7 Kf5 c6 Ke4 c7 f3 Rh2 b4 Be2 b2 Rh1 b3 Qd2 Nf6 g8Q Qe7 d8R Na6 Qgg5 Bh6 Nh3 Qg7 Nf4 Nc5 Ng6 Na4 Nf8 Ra5 Kg1 Rc5 h5 Rg8 Qh4+ Bf4 Rh3 h6 Rg3 Bb7 c8Q f2+ Kh1 f1B Qch3 Bc8 Bg4 Be3 Nc3+ Kf4 Ra2 b1Q Qd4+ e4 Rb2 Qc2 Nb5 Bb7 Rb1 b2 Nc7 Be2 Bc8+ Bg4 Nh7 Re8 Nf8 Ree5 Bd2 Re7 Re1 b1R Ne8 Rb3 Rb1 Rd3 Rb6 Rc3 Qh2 Bd5 Ba6 Bb7 Q4h3 Bd7 Rc6 Bdc8 Qg1 Nh7 Rgg6 Nf6 g3+ Kf3 Rg4 Ke2 Qb1 Kf2 Qh4 Ke2 Bc1 Ke1 Qa1 Bf2 Kg2 e3 Kh2 e2 Bf4+ Qd1 Bb8 Be3 Qb1 Qc1 Qbe4 Qc2 Kh1 Kf1 Qed5 e1R Q5e4 Kf2+ Kh2 Ke2 Qh1 Rb1 Kg2 Bc1 Kg1 Ke1 Qhd5 Bf4 Qdh1 Be3+
1N2N3/1b1n1Q2/Rq4Pr/1n2PrpB/2RPB2r/1Q2bQPK/n2k2Bn/q7 w - - 0 1 illegal: No proof kernel
7N/q3B1B1/1k4Pb/2nPrb2/QrP1bqBK/Q1RP2n1/RRb4p/4N1r1 w - - 0 1 illegal: No proof kernel
3r3K/NkqR3B/rr2R1Pb/Q2P2N1/1Np5/Bq1b2QP/PQ3rn1/5nq1 w - - 0 1 illegal: No proof kernel
1Br2n2/4B2R/2b2p1n/1QrrR2B/KPN3PQ/b1q3P1/nqkrR1P1/3N4 w - - 0 1 illegal: No proof kernel
Nk2B3/3rB2K/n2P1n1Q/qP1qQb2/R2N1RP1/1Q2n2r/1Ppq3b/1q4R1 w - - 0 1 illegal: No possible last move
r7/1BKbBNbr/2nP1PN1/6p1/QRPrR2Q/P1n4R/kn1r2Q1/3q3q w - - 0 1 illegal: No proof kernel
1N1BB1r1/1Q3n2/1nP1kpr1/3R2q1/P1PRn1N1/Qq1P4/b2K1Bnq/4R1b1 w - - 0 1 illegal: No possible last move
q7/N4n1n/1p2P3/RQPkP1R1/2R1r1N1/bb1B1K1P/n1qq2rn/1QB2N2 w - - 0 1 illegal: No possible last move
N4n1n/8/P1Qrq1pB/4rN1R/4b1PR/1k2NrP1/qPr1B1bB/2Q3bK w - - 0 1 illegal: No proof kernel
r4Kn1/q1nQ4/PQPRP1r1/7B/3R4/2kpQNB1/1qPN1rqr/b1R4b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Ke3 Ke6 Kd4 d5 h4 g5 a4 f5 e4 b5 h6 g4 h7 b3 h5 f4 h6 b2 a5 g3 a6 b4 Rh4 b3 Nh3 f3 Ng1 f2 Bf4 g2 Bg3 Qg5 Nf3 g1R Be2 f1R Nbd2 Bg7 Rc1 b1Q c6 b2 Kc5 d4 Qe1 d3 Qf2 Qa2 Qe3 b1Q Rg4 Qb7 Rh4 Kf7 Kd6 Qab2 e6+ Kf6 e7 Bg4 e8Q Qa7 Qd7 Rf2 Bd1 Be6 e5+ Kf5 Rd4 Qg6 Qc7 Bd5+ e6 Nd7 Qc8 Ndf6 Qd7 Rgg2 Be2 Rh2 Bd1 Ne7 Be2 Rhg8 h8R Qg4 h7 Qe4 Ne5 Qg2 Bh5 Be4 Nef3 Bd5 Qb7 Ne8+ Kd7 Be5 Qc7 Rg7 Rf8+ Bf6 h8Q Rg6 Qg7 Be4 Rh8 Ng8 Qh7 Qb1 Rd6 Ba1 Qe7 Qb2 Qd8 Ngf6+ Ke7 Ng8+ Kf8 Qf1 Ng1 Bh1 Qcd7 Qh3 Qdb6 Qg2 Be2 Kf6 Rh4 Kf5 Bh5 Kf6 Ne4+ Kf5 Rf4+ Ke5 Nd2+ Qe4 Qf3 Qd5 Qe2+ Be4 Qbb7 Kd4 Qe3+ Kc3 Qbb6 Bf3 Rd4 Bh1+ Qf4 Qg2 Ngf3 Qb8 Qh6 Qa7 Qe3 Nc7+
N6q/1kbb1K1P/1B2Nn1N/1r6/1qBB1Qp1/P4nPP/1bRR2b1/Qr5n w - - 0 1 illegal: No proof kernel
7q/rB5P/KNRB2Rq/NP4Nr/b3pq2/1n2q1P1/B1P1nQ2/1Q1r2bk w - - 0 1 illegal: No possible last move, all moves rejected
q1NQ1q2/4R2P/2N1Pbbn/1PR1Q3/1Pr1N2B/2Kb1r2/BpQ5/2r1rk1n w - - 0 1 illegal: No proof kernel
1Qb2r2/3BB1P1/nP2pq2/RPRQbnrP/5K1k/3N4/b1N1Q2r/b2qN3 w - - 0 1 illegal: No proof kernel
nR1R3n/nq1N1P2/Q1B2r1b/1p3P1P/Qb4R1/Nb1QB3/3rbP2/3qk1K1 w - - 0 1 illegal: No proof kernel
R4nRQ/K2PP1Nq/2Q1P1kb/3q1p1q/2R5/Pn4B1/1q1rb1N1/2r2QbB w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 b5 Ke3 c5 d4 g5 h4 f5 e6 b3 e7 Kf7 h6 c4 h7 c3 h5 g4 d6 g3 d5 c2 Kd4 b2 Kc5 g2 e4 b4 d7 b3 e5 Nc6 e6+ Kg7 d6 Ra6 h6+ Kf6 Rh4 Na5 Ne2 Nc4 Nf4 Kg5 Na3 b1Q Nh5+ Nd2 Ng7 b2 Nc4 g1B+ Ne3 Nf6 Rc4 Kg6 Bg2 Nb3+ Kb5 Ra8 Bh1 Ba6+ Kc6 Qa5 d8R Nd7 Qf1 Qd5+ Kc7 Rg8 h8Q Rb8 Re8 Rd8 h7 Bb5 Bd2 c1Q Be1 Qcd1 Bg3 Qh5 Ng2 Qc2 a3 b1Q Ra2 Qcb2 Ra1 Ndc5 Kb6 Qbe4 Ra2 Qeh4 Ka7 Qh2 Ra1 Q2h3 Rd1 Nd7+ Rdd4 Ba6 Rc8 Be2 Ra8 Rc8 Rd8 Rc5 Rc4 Qh2 Ne8 Q2h4 Qc3 Bh6 h8Q Nf8 d7 Qh3 Ng7 Qh2 Rb4 Q2h3 Qcf3 Rc1+ Rd4 Q3h4 Qc3 Qh3 Qc6 Bg5 Nh4+ Kf6 Qf3 Qh7 Be1 Ng6 Rdb8 Bd3 Qf1 Bh6 Ne8+ Kg5 Bf2 Qhf3 Rc4 Qh5 Nc7 Rg7 Rg8 Nf8 Ne8 Rg6 Ng7 Kf6 Kb7 Rg2 Bg3 Rd2 Ng2 Be2 Ka6 Kg6 Kb7 Nd4+ Ka7 Nb3+
b2B1r1k/1NP1n3/1n6/3B2Q1/PR4P1/1QPpRB2/1qb2bb1/KRN2qnr w - - 0 1 illegal: No possible last move
1nQq1k2/2P1R3/1K1r1nB1/BBRb1Pbb/2R5/qr1Q1N1P/pP4N1/2n4b w - - 0 1 illegal: No proof kernel
2br3k/1NP3q1/n2N2n1/3RP1n1/1KP1BQ2/rbNPBR2/bb1Q2pq/3R4 w - - 0 1 illegal: No proof kernel
2r1N2Q/2PB3P/1pR2B2/4q1Pr/Q2r3n/n4PNr/qK1R1b1k/3NqQ1b w - - 0 1 illegal: No proof kernel
1b5r/1QP1p1K1/2NrPQ2/2N1nP2/1Q1q4/n2qqRrk/1q2Bb1P/2B1B1R1 w - - 0 1 illegal: No proof kernel
qr5q/QP5R/BQnp2bN/P1P2r1b/N2P4/1rr4R/nB3b1N/BK1k4 w - - 0 1 illegal: No proof kernel
r1Q3Q1/1p1N1b2/2R4N/q2nNRB1/b1qP1Kn1/kP1B2Pb/4r1qP/6Bb w - - 0 1 illegal: No proof kernel
2b3RQ/Pn1n4/1qp3NN/4bb1r/1r1rQ1B1/bq3P1R/BP1PN3/B3k2K w - - 0 1 illegal: Other
2n1QR2/nb2p3/2Pb4/k2rPR2/2rrB1N1/PB1r2NR/Kr1q2P1/2r2QN1 w - - 0 1 illegal: No possible last move, all moves rejected
1N1kB2q/1PRPR3/3n4/3Rr1P1/2nrP3/Kbn1n1n1/1Bp4B/bN1QQn2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 g4 h5 d4 c5 Kd2 a5 Kc3 a4 b4 h4 Kb2 c4 g6 h3 d6 c3+ Ka2 h2 d5 a3 b6 c2 b7 f3 g7 f4 g5 f2 b5 f3 b6 Ra4 Ba6 f1N Qd2 f2 Be2 Ne3 Qe1 f1N Nf3 Nc6 b8B Rd4 b7 Be6 Bb5 Ne7 g8R Nc8 d7+ Ke7 Bb2 Nd6 Ba4 Na7 Ne5 Nab5 Rg7+ Bf7 Kb3 a2 Bc7 Nc3 Ka3 Qb8 Rh7 Bg7 Nc6+ Kf8 Bb5 Qd8 Nb8 Ke7 Ba4 Re8 Bc6 Nd2 Rf1 h1N Rf5 Ndf1 Re5+ Be6 Bb5 Nhg3 Bc6 Qc8 d8Q+ Kf7 Qd7+ Re7 Ba4 Qh8 Bb5 Kf8 Qd8+ Kf7 Be8+ Kf8 Qd7 Bg8 Qg4 Re6 Qgd1 Ke7 Nd2 Bf7 Rc1 a1N Nb1 Bf6 Rg7 Nb3 Rh7 Nc8 Rg7 Nbd2 d6+ Kf8 d7 Ke7 Rc5 Re5 Bd6+ Kd8 Rc7 Bb3 Re7 Rc5 Be5 Nd6 Bf4 Nge2 Bh2 Neg3 Qg4 Re5 Rd1 Nf3 Rd3 N3d2 Qgd1 N2c4+ Kb4 Rdd5 Bg6 Rf5 Bc1 Na4 Be8 Ba1 Bb2 Nc3 Rd4 Rf2 Rd3 Rd2 Rd4 Re5 Rd5 Na5 Ka3 Rd3 Bf7 Rd4 Be8 Nac4+
RBr1bq1k/5P2/2n1R1Rb/2PN1QKN/1r3n2/Q3PP1N/1bBb1r1p/3r4 w - - 0 1 illegal: No proof kernel
1n2BB1r/NQ3P1r/3Pk1N1/1n1qr2P/1p4Nn/b2bK1Q1/1PR1R3/2nQ2r1 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 Nc6 c4 Nb4 cxd5 Nxa2 Ke2 Kf7 d4 e5 h4 b5 f4 a5 f6 c5 h6 g5 f5 g4 h7 a4 d6 e4 d7 e3 h5 c4 d5 a3 Rh2 c3 Nh3 c2 Nc3 g3 Nf2 g2 Ng4 g1R Rb1 Qa5 d8Q Ne7 Qd7 Ba6 Qb7 Re8 Kf3 e2 Ke3 e1N Re2 Qd8 Bd2 Qd7 Rc1 Nf3 Be1 Qc6 Bg3 Nh4 Bd6 Qd7 Bg2 Nc6+ Be7 Rg8 h8Q Nb8 Qh6 Qc6 Qf4 Rh8 Qg3 Qd7 Be4 Rh7 Bb4 Re5 Bc5 Nb4 Bd6 a2 Be7 a1R Bc5 Kg8 f7+ Kg7 Be7 Na2 Ba3 Bd6 f8N Kf7 f6 Bb4 Ng6 Bd6 Na4 Nc3 Nb6 Bf8 Nc8 Be7 Rb1 c1N Na7 Qd8 Bb4 Ra4 Ba3 Rc4 Ra1 Rc8 Bd6 Qd7 Ra4 Rch8 Rc4 Na4 Rcc2 Nc3 Bc7 Ba3 Bd6 b4 Bf8 Nb5 d6 Ke6 f7 Qd8 Kf4 Qa5 Bc6 Nd4 Be8 Qd5 Rf2 Bd3 Rfe2 Be4 Ke3 Nb5 Rg2 Rg8 Rgf2 Rgh8 Rfe2 Bd3+
1nb2r2/b1Pn2Q1/2QrB2P/BQ2P3/PRq1r3/1B1Np3/rb3bK1/1k1N1R2 w - - 0 1 illegal: No proof kernel
1nN3Nn/1P1P1R1r/5RPb/p2k2BB/b6P/1nQ1bNn1/2q1B2r/1b4KQ w - - 0 1 illegal: No proof kernel
R1Q4r/q1q2Pb1/RBrrp3/1PKQPbN1/1r1n4/B1R2r2/1P2q3/1B3Nk1 w - - 0 1 illegal: No possible last move
R1rQ1K1N/bq1pP3/rqBPPr1n/r7/5BbB/1rR1q3/1k1PN3/3R1Q2 w - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 b5 h4 gxh4 a4 Nc6 axb5 Nb4 Na3 Nh6 Nb1 Nd5 cxd5 Ng8 Kf2 Ke7 Ke3 a5 Ke4 h5 Kf5 c5 g4 c4 b4 a4 e4 c3 b6 h3 e6 Kd6 g5 h4 e7 c2 b7 a3 b8R a2 b5 Kc5 e5 Kb4 b6 Kb3 b7 h2 Na3 h3 Nb5 Qb6 Qe1 Ra6 Bb2 c1Q Ne2 Qc3 Rc1 a1R Nd6 Qce3 Ra8 R1a5 b8B Nh6+ Kf6 Bb7 Bg2 Rg8 Rf1 h1Q Rc3+ Ka2 Qf2 h2 Rd1 Rh8 Ba3 Bc6 Bb4 Kb2 Qf1 Ba4 Bf3 Qg2 Bc5 h1R e6 Rh3 g6 Qh1 Ra1 Bd1 g7 Qg2 g8Q Qh1 Be4 Qhf3+ Ke5 f5 Kf6 f4 Nf7 Bg7+ Kg6 Qh1 Qd8 f3 Bf4 f2 d6 Bd4 Bc6 Rf8 Nh8 Re8 Nc1 Bg4 Ne2 Qg2 Rd1 Qgf3 Qc7 Rc8 Qd8 Qd5 Kh7 Qdb3 Kg6 Qb7 Ba7 Q3b6 Kh7 Bc5 Kg7 Rg3 Qg2 f1R Kf8 Rff3 Qf1 Qb5 Bb8 Ba7 Bc7 Rf2 Bb6 Rgf3 Bd4 Q5b6 Bf6 Rh3 Bg3 Rff5 Be5 Rhf3 Bf4 Rfb5 B6g5 Rb3 Bh4 Nf7 Bfg3 Rf6 Bf4 Nh6+
1rR1r3/B1Q1q1q1/1nb5/Pr2rn1Q/N7/P1np3R/1NrPNk1P/2K1RB2 w - - 0 1 illegal: No possible last move
bR1b1K2/3QN3/1qp1B1Q1/1r1bqqP1/rBN1P2n/N2Q1P1q/2P2Rq1/k7 w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Na6 h3 Nc5 h4 Ne4 Bd2 fxg4 Bc1 g3 Nd2 g4 Nb1 Ng5 hxg5 Bg7 Qd4 Bh6 Qd1 Bf8 Kd2 Kf7 Kd3 Ke6 Kc4 a5 b4 d5+ Kd4 h5 b6 a4 e3 a3 b7 c6 b8N g2 b5 a2 b6 g3 b7 h4 Qh5 h3 Na6 h2 b8Q Qb6+ Kd3 d4 Kc4 d3 Qh7 d2 Nb4 d1B Nf3 g1Q Qd3 g2 Nd5 Be7 Nfd2 Bd8 Ne7 Nh6 Qb7 Nf5 Na3 Nh4 Rb1 a1Q e4 Bh5 f3 Bf7 Rb4 Ra4 Bb2 Qgf2 Bc3 g1Q Bh3+ Qg4 Rf1 Qg2 Rf2 h1Q Qa7 Bg8 Qc7 Bb7 Qcd6+ Kf7 Qd7 Ba8 e6+ Kf8 Be5 Rh7 Bd6 Qe5 Bc5 Rf7 Bd6 Rf5 Bc5 Qh8 Bd6 Rb5 Bc5 Kg7 Kd4 Qhf1 Ke5 Qa1+ Kd6 Qh6 Qb7 Qe5+ Kd7 Qh7 Ke8 Qh8 Ndc4 Qh6 Nc8+ Kg6 e7 Bd5 Rb1 Qhh5 Bb4 Qh7 N8d6 Kg7 Nf5+ Kg6 Kd7 Kf7 Qc8 Qc5 Nb6 Ng6 Qc4 Q4g3 Rff1 Rba5 Qb7 Qef4 Rf2 Qg7 Bd2 Nh4 Bg4 Q3h3 Qd3 Qgc3 Nbc4 Qa1 Rb6 Rb5 Qc7 Qc3 Rb8 Qb6 Be1 Qh8 Bb4 Qb2 Kc8 Ke6 Qb7 Qf6 e8Q+ Qe7 Qg6+ Qf6 Ncd6 Ke5 Ne7 Qh8 Bd7 Qfg4 Be6 Qg7 Kd7 Qh8 Qe2 Kd4 Ndc4 Qg7 Ke8 Qe5 Bd6 Kc3 Kf8 Qed4 Qd7 Qe5 Ne3 Kb2 Qd3 Ka2 Bb4 Ka1 Nec4 Qgf5+
4Nr2/3Q3q/4P1rN/nP1P1B1q/2k1B1rQ/Bnn4p/1qN1n2P/Rb2RK2 w - - 0 1 legal: proof: c4 e5 a4 f5 g3 b5 axb5 f4 c5 e4 f3 Bd6 fxe4 f3 c6 Bf4 gxf4 dxc6 e5 c5 Qc2 c4 Qb3 Bb7 Qd1 Bc8 b4 Ke7 e4 Ke6 d4 c5 b6 a5 b5 h5 b7 g5 Ra4 h4 Ba3 f2+ Ke2 g4 Bg2 f1Q+ Kd2 h3 Bb4 g3 Ke3 c3 Qe1 c2 Ba3 c1N Ne2 Nc6 b8N c4 Nd7 c3 Nf6 c2 Ne8 Nb3 Qf2 Qd1 Re1 c1N f5+ Kf7 f6 Ke6 f7 Qd7 f8Q Rh4 Bf3 g2 Qg7 g1R Ng3 Rg4 Nf5 Nf6 Nh6 Ne2 Qh4 Nd5+ Kf2 Ndc3 Qh7 R1g2+ Kf1 Qa7 Qc7 Rg6 Qcd8 Qh7 Qc7 R2g4 Qa7 Bb7 Bh1 Kd7 e6+ Kc8 e7 Kd7 Bb4 Ke6 e5 Rf4+ Qf2 Nec1 Nd6 Qh5 e8B Rfg4 Qh4 N1e2 Ra2 a4 Na3 Nca5 Bec6 Re4 Bd7+ Kd5 Bf5 Rf8 e6 Bc6 Qd7 Ba8 Nc2 a3 Ne8+ Kc4 Na1 Reg4 Be7 Bf3 d5 Be4 Bb4 Bb1 Be4 Ng1 Nc2 Nge2 Rb2 a2 Ba3 a1Q Ra2 Qb2 Ra1 Rff6 Bh1 Rf7 Be4 Rf8
1QN1KB1b/5nbb/1p2B1R1/1P2P3/nB6/Q3qP1R/qq4Pn/Nq1N1k1r w - - 0 1 illegal: No proof kernel
N4R2/r1Q1Qbnr/P1pB2P1/Qr1n2R1/2P4k/1Kn1NB1q/3qBPq1/4q3 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 f5 gxf5 axb4 h4 g4 Bd2 Bh6 Bc1 Bg5 hxg5 Ra5 Rh4 Ra7 Rh1 Ra8 Kd2 Kf7 e4 d5 a4 h5 c4 b5 Kc2 h4 a5 d4 a6 d3+ Kb3 g3 f6 Kg6 f7 d2 f8Q h3 e6 h2 e5 g2 e7 c6 e6 Nd7 Qe1 Kh5 e8Q+ Kh4 e7 d1N g6 Ngf6 Nc3 Nh5 Bf4 Ndf6 Nge2 g1Q Qd7 Ng7 e8B Nd5 Bf7 Rh7 Ra5 Qg2 Na4 Ra7 Qc7 Be6 Ng3 N1c3 Be2 Qh3 Bg8 Bf7 Bd6 Qg5 Nf1 Qd2 Rg1 h1Q Rg5 Q1g2 Qfe7 Qdd3 Kb2 b3 Nb6 b4 Ne3 Qd1 Na8 Qd4 Kc1 b2+ Kc2 b1R Rb5 Qf4 Rb8 Qd4 Re8 Qf4 Rf8 b3+ Kd3 b2 Kc2 Qd4 Kb3 Qd2 Ka3 Ra1+ Kb3 Ra5 Qa1 Rc5 Qaa5 b1Q+ Ka3 Qbe1 Kb3 Be8 Be6 Bf7 B6g4 Nb6 Bh5 Nbd5 Bhf3 Rb5+
3Bnq1k/1p2BPnq/3b1KQb/2R2Q1r/qP5n/1N1Pn1RN/1PbR4/1B6 w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 c4 gxh4 cxd5 a5 a3 Ra6 Bc4 Rb6 Bf1 Rb4 axb4 Qd7 Qc2 Qd6 Qd1 Qd8 Ke2 Kf7 Kd3 Kg7 Kd4 c5+ Ke5 h5 f4 c4 g4 a4 g5 c3 d6 c2 g6 a3 d7 h3 Nf3 h2 Bh3 h4 Ne1 a2 Qh5 Na6 Qf3 Nh6 Rg1 h1Q Qc6 Nc7 Rg3 e6 Bg2 h3 Be4 h2 Nf3 Qd1 Ng1 h1Q f6+ Kg8 g7 Nf5 Qd5 Rh5 Nh3 Be7 Qd3 Qf8 d8B Bd7 Qd6 Ba4 f7+ Kh7 Qc5 Bd6+ Kf6 e5 g8R Bb3 R8g5 Kh8 Qg1 Ng7 f5 Qh2 Bd3 e4 Be7 e3 Qg2 Qg8 f8Q e2 Qf7 e1N Qgd5 Qhe2 Qg6 Qf2 Bd8 Qc5 Qe6 Qh7 Kf7 Qe5 f6 Qf4 Rc5 Nf3 Qd5 Be5 Ke7 Nh4 f7 Qe4 Qd7 Qc6 Qdf5 Qa4 Nc3 Bf4 Nb5 Be5 Rb1 a1N Nd4 Qe2 Bc4 Qe4 d3 Qe2 Bg5 c1B Bf6 Bh6 Rd1 Nc2 Rd2 Qe4 Be6 Ne3 Bd5 Bd1 Ba2 Bc2 Bb1 Qec6 Nb3 Bef4 Be5 Qe8+ Kf6 Qeg8 Bd6 Qf8 B6e7 Bd6 Ra5 Bdf4 Rb5 Bd6 Rc5 Nce8#
rQn4n/q3P3/3N1pbQ/BB1P2nq/P6Q/1rRr3R/qR1N1P2/k5qK w - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c3 h5 gxh5 e5 dxe5 d4 Ba3 d3 Bb2 Bc5 Bc1 Bd4 cxd4 Qf6 Na3 Qh4 Nb1 Qd8 e4 Kd7 a4 Kc6 h4 g5 d5+ Kc5 e6 Kc4 e7 b5 e8R c5 h6 f6 h5 b3 h7 b2 h6 b4 e5 b3 e6 g4 Na3+ Kc3 Be3 b1R Nb5+ Kb2 Na7 g3 Rh3 d2+ Ke2 g2 Kf3 c4 Rg3 c3 Re7 c2 Qe2 d1Q Bd2 c1Q Rb7 Qd7 Rb5 Ne7 Rh3 Ng6 e7 Nc6 Ra3 Ba6 Rb4 Bd3 Nb5 Na7 Nd6 Nc8 Rb8 Bc2 Ba5 Qa7 Rb6 Rg8 h8Q Qcd2 Qg7 Nh8 h7 Bg6 Qh6 Q2c2 Kg3 Rg7 Nf3 g1N Nd2 Nf3 Kg2 Ng5 Qe6 Qh5 Kh1 Rd1 Qe2 Qb1 Qe6 Qa2 Qg4 Ka1 Qh4 b2 Rac3 b1Q Rb2 Qc1 Nb1 Rd3 Nd2 Nhf7 h8Q Qcb1 Qe8 Nh8 Qb5 Rg8 Qb8 Rd8 Kg1 Rd7 Kh1 Rb7 Qe4 Qbd1 Qh4 Qdg4 Be2 Rb3 Bf1 Rd4 Ba6 Rd3 Bb5 Qg1+
4N2q/1BQ1nq2/3BP2n/Pk1N2Q1/2Rq2pK/4bBPP/qqr1q1b1/3R2R1 w - - 0 1 illegal: No proof kernel
N7/2n1pP1Q/n1P4q/q2n1r1Q/4Pn1Q/2n4B/K1P1RnRN/BNrk3b w - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 c5 dxc5 Bh6 h4 fxg4 Bg2 g3 Bh3 g4 Bf1 Bg5 hxg5 Bb7 Bf4 Ba6 Bc1 Bc8 Kd2 Kf7 Kc3 Ke6 Kb3 Kf5 f4 Ke4 b6 h5 g6 d5 b7 a5 e3 a4+ Ka2 g2 b4 a3 g7 d4 b5 h4 b6 g3 f5 d3 f6 h3 f7 d2 Bc4 h2 Be6 Rh5 Nh3 g1N Bc4 g2 Qe1 Kf3 Nc3 d1N Bf1 Rf5 Qd2 Nf6 g8Q Qd6 Qe1 Ne2 Nb1 g1N Qh4 Na6 b8Q Bb7 Nf2 Ne8 Bb2 Nec7 Qgh7 Qh6 Ng4 Nf4 Bh3 Ke2 Qbh8 Nfd5 Bf6 Bc6 b7 Nb2 b8N Kd1 Nd7 Na4 Nb6 Rb8 Na8 Rb5 Bf1 Nh3 Rg1 h1N Rg2 Nhf4 Nh2 Rb7 Re2 Nf2 Bh3 Rb8 Bc3 Rg8 Bd4 Rg1 Qe5 Ndb6 Bb2 Bh1 c6 Nbd5 e4 Rf6 Qeh5 Rf5 Kb3 Re1 Ra2 Rf1 Ba1 Rg1 Rb2 a2 Ka3 Re1 Rb3 Rg1 Rg3 Re1 Be5 a1Q+ Kb3 Qc3+ Ka2 Qa5 Ba1 Kc1 Na3 Rf1 Rg2 Rd1 Re1 Kd2 Re3 Rc1 Re2+ Kd1 Nb1 Nac3+
2B4k/4Q3/3p1N2/2brRq2/NP2r1nP/2PP1Qr1/r1bbQb1B/R2K1N1b w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 a3 f5 exf5 hxg4 bxc5 b4 Be2 b3 Bc4 Nc6 Bf1 Nb4 axb4 Qb6 Ne2 Qa5 Ng1 Qd8 f4 Kf7 h4 e5 f6 a5 f5 g5 c6 b2 c7 a4 c3 a3 d3 g3 Qg4 g2 Qe2 g4 Nd2 b1B Nc4 g3 Nb6 e4 Qd1 a2 Bg5 e3 Qa4 e2 Bf4 Rh5 Nd5 Bb7 c8N Nh6 Ncb6 Kg8 f7+ Kh8 f6 Bc5 Nf3 g1R Nd2 d6 Qc2 g2 Na4 Qf8 Bh2 Ng4 Qb2 Qc8 Qc2 Qf5 f8Q+ Kh7 f7 Re8 Qe7 Kh8 Nf6 Rg5 Qc7 Re4 Qe7 Rh5 Nc4 Ba8 Ne3 Bc6 Kd2 e1B+ Kd1 Bd2 Qb2 Qc8 Qc2 Rd5 Qb2 Qf5 Qc2 Be1 Be2 Bd2+ Nf1 Nh6 Bh5 Ng4 Bg6 Ba8 Bh7 Bb7 Bg8 Bf2 f8Q Rc4 Qh6+ Qh7 Qf4 Rh5 Qee3 Bde1 Ng3 Re5 Qa7 Qf5 Be6 Bc5 Qcf2 Bd2+ Qe1 Be4 Bc8 Rd5 Qb7 Rf1 Qe7 g1B Qe3 Bf2 Rg1 Bh1 Qf3 Bfd4 Rg2 Rg1 Re2 Bf2 Re5 Re4 Nf1 Rg2 Qee3 Rg3 Ke2 Bc2 Re1 a1R Rb1 Ra3 Ra1 Bb1 Kd1 Ra2 Qee2 Bc2+
7b/1p3R2/b3b2n/2QNn1P1/1Pn1KnPB/3B1QP1/k2q2b1/b1BNQrR1 w - - 0 1 illegal: No proof kernel
k3rb1r/P2Kb2p/5brP/P2PBq1b/1N4BN/Q4R2/4B1N1/rn1q2QR w - - 0 1 legal: proof: f4 a5 g4 f5 b4 e5 bxa5 d5 c4 Nc6 cxd5 Nce7 Kf2 exf4 Ke1 f3 Ba3 f4 Bc1 Nf5 gxf5 Qe7 Ba3 Qd7 Bc1 Qd8 Kf2 Kd7 d4 c5 a4 Kc7 h4 Kb8 e4 b5 h5 g5 e5 c4 a6 b4 e6 c3 a7+ Kb7 h6 g4 f6 c2 d6 b3 a5 b2 d7 Qe8 f7 Qd8 e7 Nf6 e8B Nd5 Ra3 Nc3 Nd2 b1R Ne2 Ra1 Bb2 c1B d5 Nb1 Qe1 Qf6 Be5 Qf5 Bh3 Rb8 d8N+ Ka8 Nc6 Bb2 Nb4 Be7 f8Q g3+ Kf1 g2+ Kf2 Ba6 Bb5 Re8 Qg1 Bc8 Rd3 Be6 Bg4 Bf7 Re3 Bh5 Ba6 Bg5 Qc5 Be7 Qcc1 Bc3 Qa3 Bf8 Nd4 Bb2 Ne6 Bd4 Bf1 Bdc5 Be2 Bce7 Ng7 Bf6 Nf1 B6e7 Rc3 Bf6 Ne3 B6e7 Ke1 f2+ Kd1 f3 Rb3 Qd7 Kc2 f1Q Kd3 f2 Ke4 Qd1 Ngf5 f1R Nh4 Rf6 Rd3 Rg6 Rb3 Qc7 Kf5 Bf6 Rd3 Qf7 Rc3 B8e7 Rb3 Qf8 Ke6 Qf7+ Kd7 Qf8 Qh2 g1B Neg2 Bgc5 Qg1 Qf7 Rf3 Qe6+ Kc7 Qf5 Kc6 Bf8 Kc7 Bce7 Kc6 Qg5 Kd7 Qf5+
1qr2N2/R2nK1Br/r1b1PBb1/k3pp2/1N1Rb2Q/B3PP2/4P2n/1Q1R3n w - - 0 1 illegal: No proof kernel
b1N3K1/4R1rB/1P3BrQ/b4N2/1p1nn1R1/1PpP2P1/Q2N2kq/1b1Rrn2 w - - 0 1 illegal: No possible last move, all moves rejected
bR3b1R/rQ2BP2/pPBbn3/4n1RN/3rp3/1P2nr1N/NPK1k3/6Qq w - - 0 1 illegal: No proof kernel
B1kN3r/3nP1QB/3p1b2/P1P3p1/1b1NRr2/3KP1BR/1QRnr3/1q1n1b2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 e5 dxc5 Rh6 fxe5 Rh8 Kd2 b5 h4 f5 c4 g5 a4 b4 c6 f4 e6 d6 c7 f3 e7 Kd7 h5 g3 a6 f2 a7 b3 a5 g2 h6 b2 h7 Bb7 c8R Ba6 Rh3 Nh6 Kd3 Ng4 Qd2 Qe8 Na3 b1N Nf3 g1B Qb2 Nd2 Nd4 Qh5 Nc6 Bg7 Nb5 Bf6 Ra4 Ne3 Nbd4 Nd1 Nd8 Qf7 Bg2 f1R Be4 Re1 Rb4 Rf8 h8Q Qg6 Qg7 Bf2 e3 Re2 Rc5 Be1 Rc6 Nf3 Bd2 Qf5 Bc3 Nd2 Ra4 Qf1 Bh7 Rh8 Nc2 Rf8 Be5 Qh1 Nd4 Qg1 Rb6 Kc8 Bg3 Nd7 Rb3 Rb8 a8B Rb4 Rc3 Rh8 Rc2 Qh1 Nb5 Qg1 c5 Rf4 Rac4 Qh1 Nd4 Qb7 Qa2 Qb1 Qa1 Ne4 Qb2 Bb4 Nb5 Nd2 Re4 Bb7 Nd4 Bc6 Re5 Bg2 Re4 Bf1
8/1PK1P2r/QN1R1Npb/3RBrPp/n5rb/n3k2B/PB1N3b/1Q1q2n1 w - - 0 1 illegal: No proof kernel
1k1N1rnQ/1b1q4/4B1R1/Q3q1Br/2BRPqK1/1PpP3P/pRn3N1/4bb2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 g5 e4 a5 b3 c5 d6 f5 h3 a4 b6 c4 b7 a3 Nc3 a2 Na4 Nc6 b8Q Nb4 Qe1 Bb7 Nf3 Rh5 Nh4 Nc2 e6+ Kc6 d7 Bb4 e7 f4+ Kh2 f3 Kg3 f2 e8B Qe7 d8R+ Qd7 Rb1 Bc3 Bd3 f1B Nc5 Kb6 Qe5 Ka7 Qh8 Rc8 Bf7 Kb8 Rg1 Ba5 Kf2 g3+ Kf3 g2 Be6 g4+ Kf4 g3 Rb2 Bb4 Kg4 Bc3 Rh1 g1Q Ng2 Qf2 Rg1 Qfd4 Be2 Qe5 Bd3 Qh7 Rd4 Qd7 Be2 Rf8 Bd3 Bc6 Nb7 Ba5 Nd8 Bb7 Qf2 Bc3 Qf5 Bb4 Nh4 g2 Qg5 c3 Bc4 Be7 d3 Bf6 Qf5 Bg5 Bd2 Bf4 Bc1 Bg3 Bf4 Be1 Bg5 Qf6 Qa5 Qe5 Rh1 g1Q+ Ng2 Qf2 Rg1 Qff7 Nf4 Qeb5 Kf3 Na3 Be7 Re8 Rg6 Rf8 Bg5 Qe5 Kg4 Nc2 Ng2 Qff4+
2b3RK/Q2n2qR/4Bb2/Q1Q3P1/1p4B1/PrBP2pn/P4Nqn/1r2Nrk1 w - - 0 1 illegal: No possible last move, all moves rejected
BQqR4/3NN1b1/3n2Pr/Kr2Q3/1p5B/P1N2p2/1PPRbn1B/2r1qkq1 w - - 0 1 illegal: No proof kernel
4b1bQ/5RB1/Q1nq1PPn/Bq1r2p1/1r3QBk/1R1PN3/1Kp1NrP1/7q w - - 0 1 illegal: No extended proof kernel
1Br1n1K1/3b4/1PN5/qpbn2P1/QPpBQ1qk/6N1/nBr2PR1/RQ2q3 w - - 0 1 illegal: No proof kernel
1BR5/rb3B1r/1Pn2b1p/b1PpBP2/1N3QP1/k1K3q1/1nR1Rqn1/2N2Q2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 f4 e5 g4 Ke7 b4 Kd6 c4 h6 g6 e4 b6 d3 b7 e3+ Kc3 a4 g7 a3 f6 a2 b5 Kc5 f7 e2 b6 d2 Rh2 e1Q Re2 Nf6 g8R Qf2 Bb2 Nh5 Na3 Nc6 b8B Ra7 Rc1 a1B Nc2 Qdh4 Nb4 Bb7 Rc2 Rh7 f5 Bd6 Rc8 Nf4 f8Q Ng2 Qd8 Bf8 Qg5 d6 Qf4 Qhg3+ Re3 Be7 Ne2 d5 Nc1 Bh4 Bd3 Bd8 Re2 Bh4 Qf1 d1N+ Kb3 Bf6 B2e5 Nb2 Kc3 Qh3 Rcd2 Qh2 Bc2 Qhg1 Ba4 Qh2 Rc2 Qhg3+ Kd2 Nd1 Bb5 Bd4 Ba4 Nb2 Bb5 Be3+ Kc3 Ra2 Kb3 Ra8 Nba2 Ra7 Bbc7 Ne7 Be8 Nc6 Bb8 Nd3 Bg6 Bd2 Bf7 Ba5 Nc3 Nde1 Kb2 Kb4 N3a2+ Ka4 Nb4 Nd3+ Kc3 Ka3 c5 Nb2+
n3R2Q/3Q1b1B/Pq4NN/P4pR1/3pBP2/1K2P3/r1r1nr1Q/bnqNk3 w - - 0 1 illegal: No possible last move
b2B4/5R2/p1r2P1P/PN3P1k/qr1Q1Rn1/p1qK3b/1r4RQ/nN2Q1bB w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 Rh6 dxc5 Rh8 a4 Nh6 a5 Ng8 Qg4 Rh6 Qb4 Rh8 Qa4 bxa4 Kd2 Kf7 f4 g5 c4 e5 h4 d5 b4 a3 c6 e4 f6 e3+ Kd3 g4 c7 d4 b5 g3 b6 a6 c5 e2 h6 Kg6 c6 e1Q b7 g2 h7 Qde7 Ne2 g1R Nec3 Bh3 c8R Qb4 c7 Rg4 Bg2 Nh6 Rf1 Bc5 Bh1 Qa4 Ra2 Nc6 b8Q Kh5 Rg2 Rf8 Qb6 Rb8 h8Q Re8 f5 Re6 Rf4 Qg3+ Be3 Nb4+ Ke2 Rb7 Nb5 Rc6 Rf8 Nc2 c8Q Na1 Rf7 d3+ Kd2 Qf3 Qe6 Rb8 Kc3 d2 Kd3 d1B Qbd8 Qg3 Qd4 Bf3 Bg1 Ba7 Qe1 Rb7 Nd6 Rb2 Nb5 Rg8 Bf2 Rb8 Be3 Rb7 Qb8 Ng4 Bf2 Kh6 h5 Kg5 h6 Kh5 Qdd8 Rb4 Bb6 Rb2 Bc7 Bg1 Qd4 Rbb6 Bd8 Rb7 Nc7 R7b4 Nb5 Rb6 Qc7 Ba8+ Rf3 Qe5 Rf4 Rd6 Qc2 Rc6 Qcf2 Qc5 Qg3 Qc1 Qh2 Qc3+
1qR1n2N/n2BPBrN/PP3Q1B/2KQ4/pPq1N1b1/bk6/2R1p3/n3b1r1 w - - 0 1 illegal: No possible last move, all moves rejected
4nB1B/kqN1P1p1/1N1n2K1/1Q2bRP1/b2N1r2/2p1r3/nQP2RPr/1q2Q3 w - - 0 1 legal: proof: d4 b5 a4 e5 dxe5 Qg5 axb5 Qd8 f3 h6 e3 h5 Bc4 Rh7 Be6 Rh8 Bg4 hxg4 fxg4 Qf6 Ra4 Qg5 Ra1 Qd8 Ke2 d5 Kf3 Kd7 Kf4 f5 b4 a5 h4 c5 b6 Kc6 b7 Kb6 e4 a4 h5 d4 b5 c4 g5 d3 e6 d2 e5 c3 e7 a3 e8N a2 e6 Qd5 h6 Bd7 h7 Nc6 Ne2 Nb4 b8Q+ Qb7 Na3 Nf6 Qe1 d1N Nc7 Ne3 Nd4 Nc4 Rf1 Nd6 Rf2 Nfe8 Rb1 a1Q Nc4+ Kc5 b6 Ba4 Ke5 f4 Ba3 f3 Kf4 Qb2 Kg4 Be7 Kh5 Bf6 Kg6 Be5 Rd1 Qb1 Rd3 Rf8 h8B Rf4 Re3 Ra5 Re4 Rh4 Rf4 Rh2 Rf5 Rb5 Rd2 f2 Re2 f1R Ref2 Qc8 b7 Qd7 Nb6 Qc8 Rd2 Rf4 Rf2 Ra5 Qa7 Rb5 b8Q Qb7 Qa6 Ra5 Nb3+ Kc6 Qd3 Na2 Qa6 Nc4 Bf8 Ncd6 e7 Rd5 Qae2 Rd3 Nd4+ Kc5 Qc1 Re3 Qee1 Kb4 Qb2+ Ka5 Ncb5 Nc7 Qe8 Ka6 Qc6 Nce8 Nc7+ Ka7 Qd5 Rfh4 Qdb5 Rf4
b3Q2R/1Q2p2N/NP2Bp1q/bP1BPrN1/1K4P1/R3n2R/r2nqq1n/5k2 w - - 0 1 illegal: No possible last move
3QR3/q1rPnr2/6bR/ppN3K1/QPP4q/2BQ2R1/2P2r1b/n1knN2B w - - 0 1 illegal: No proof kernel
Q1b3Qn/1QqP3r/n2pqnNR/2B2kbP/2P2p2/5B2/rNP5/1Kb1R2B w - - 0 1 illegal: No proof kernel
2R1r1Bq/n1NpR3/1p2Q1n1/B2QPN1K/bP1q1PP1/1R3nr1/b3b1k1/7N w - - 0 1 illegal: No proof kernel
3Qq1QB/q1P5/RrkpBbP1/n2R3b/1Pnr2P1/5p1B/2N1n1rR/4NK2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 c4 a5 e4 h5 b4 f5 g6 d6 b6 Kd7 g3 f4 e6+ Kc6 c5 a4 e5 d3 b7 d2+ Ke2 h4 e7 h3 e8B+ Nd7 b8R h2 e6 a3 e7 a2 Nf3 Bg7 Qc2 d1R Ne1 Ra6 Qb3 Bf6 Na3 Rd4 Bb2 Rb6 Bh3 f3+ Kf1 Rh6 Bf7 Ne5 Bc3 Nc4 Nac2 Bg4 Be6 Bh5 e8Q+ Qd7 Qf8 Ne7 Qd8 Qe8 Rd1 a1Q Ra8 Qa7 Bb2 Kb5 c6 Rh7 c7 Nc6 Rd3 N6a5 g4 Kc6 Rd2 Rf7 Rd1 Rd2 Qa2 Rg2 Rd5 Re7 Bg8 Re3 Be6 Re4 Be5 Rd4 Qb3 Qb7 Ra6 Qa7 Qa2 Bh4 Bh8 Bf6 Rg1 h1N Qb3 Nf2 Rh1 Nd3 Rh2 Nc1 Qe3 Qd7 Qh6 Qe7 Qg7 Ne2 Qgg8 Qe8
n1q1Q1q1/Q1P1P1R1/R1p1BN2/2rpN1qn/P1P4k/R1K2b2/Qb1rr3/7B w - - 0 1 illegal: No proof kernel
2n1K1r1/2p1b2p/q4B2/B2PQ2N/2Rqb1r1/3R4/PnPrB1P1/1k1N1NQq w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 e4 e5 exd5 Ke7 fxe5 Ke8 b4 axb4 Ke2 Ke7 Kf3 f5 Kf4 b5 d4 b3 g6 b4 Kg5 b2 d6+ Ke6+ Kh5 Kd5 g7 b3 d7 f4 e6 f3 e7 f2 e8Q Ra4 Be2 f1Q Nf3 Be7 Bd2 Bb7 Nh2 Na6 Ba5 Nc5 Qc1 Qf6 Nf1 Qa6 Rh4 Nd3 Nc3+ Kc4 Nd1 b1R Rg4 Be4 d5 b2 Rf4 Qda8 d8B Q8a7 Qe3 Rb4 Qg1 Qd4 Kg4 Ra4 Qh5 Rc1 Qe5 b1Q Kh5 Ba3 Rg4 Ne7 g8N Nc8 Bf6 Be7 Kh6 Rb4 Kg7 Ra4 Nf2 Rd1 Kf7 Rd2 Ke8 Rb4 Rh4 Kc3 Rf4 Kb2 Rg4 Qe1 Nd1+ Ka3 Rb1 Rc4 Rb5 Nb2 Rc5 Rb4 Rc4 Qh4 Rg6 Qh1 Rg3+ Nd3 Nc3 Kb2 Nd1+ Kb1 Rf3 Nb2 Rd3 Bd6 Bg7 Bf8 Nf6 Rg8 Nh5 Be7+ Bf8 Rg4 Bg7 Rb6 Bh8 Rbg6 Bf6 Rg8+
2qrRRQ1/1P2r1B1/nK2P1Q1/4P2p/3N1Bqk/1b4p1/1qR2N1P/1bnN2b1 w - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 e5 dxe5 c6 a4 Qh4 axb5 Qd8 b4 Nh6 b6 Nf7 b7 Qh4 b5 Qf6 b6 Qd8 Bg2 Nh6 Be4 Ng8 Bd3 Qc7 Ba6 Qd8 Bb5 cxb5 Kd2 Ke7 Kd3 d5 Kd4 a5 Kc5 g5 c4 h5 f4 d4 e4 d3 e6 g4 Qc2 b4 Nc3 a4 Nd1 b3 Nh3 a3 Re1 d2 Nhf2 b2 Ra2 Kf6+ Kb5 b1B c5 g3 c6 Bd6 c7 Na6 b8N Ne7 b7 Nd5 Nc6 Rh7 Nd4 Ndb4 Kb6 Re7 Qd3 Qe8 Rc2 a2 Re2 Bd7 c8Q a1Q Re3 Qh8 Qg8 Ba4 Re2 Bb3 Re3 Ree8 Re2 Na2 Re3 Ke7 f6+ Kd8 f7 Ke7 f8B+ Kf6 f5 Bf4 Nh1 Qg7 e5+ Kg5 f6 Qb2 Rc8 Kh4 f7 Qf6 Nc3 d1Q Re2 Be3 Rc2 Qg7 Qg6 Bg1 Nf2 Qg4 Bf4 Nc1 Ncd1 Qf6 Bg7 Qd8+ Kb5 Re7 f8R Qe8+ Kb6 Qd7 Rce8 Rd8 Bfh6 Qc8 Be3 Nc5 Bf4 Na6
b1R3B1/1Pb1k2n/2p1b2r/QNP1pPP1/K3N1rR/2R5/4Q2r/nQ1qq1B1 w - - 0 1 legal: proof: e4 b5 a4 g5 axb5 e5 h4 f6 hxg5 Ne7 d4 Bg7 dxe5 Bf8 e6 Ng8 e5 fxe5 Kd2 d5 Kc3 a5 Kb3 h5 c4 h4 g4 c6 f4 d4 g6 h3 g5 h2 e7 d3 f5 d2 c5 Na6 b6 Rb8 g7 Qd6 b7 Rh4 Ra3 Be6+ Bc4 Nf6 g8R Rh6 Qe2 Nb4 Nh3 Nc2 Nf2 d1B Nc3 Nh7 Ka4 Na1+ b3 Bc2 Nb5 Qd1 Ne4 Bd3 Be3 Rd8 Rh8 Rd4 b8Q+ Kd7 Bg1 Qe1 Ned6 Rg4 b4 Qd1+ Rb3 Qe1 Rc3 Qd1+ Ka3 a4 Ne4 Qe1 Qa7+ Ke8 Qa5 Kf7 Ka2 a3 Bb3 Bdc4 Rg8 Bc8 Rh8 B4e6 e8Q+ Kg7 Qed8 Kf7 Qdd1 Ke7 Qb1 Bb7 Bc4 Ba8 Bd5 Nc2 Kb3 a2 Ka4 a1Q+ Ba2 Bg7 Rc8 Bf6 Qb2 Qac1 Qb1 Na1 Bd5 Bd7 Bg8 Be6 Na3 Qcd2 b5 Qd5 b6 Qdd1+ Qb3 Kd7 b7 Bd8 Qbc2 Ke7 Nb5 Bc7 Bf2 Qd5 Qb1 Qd8 Rf1 h1R Bg1 R1h2 Rf4 Rg3 Rh4 Rg4 Qbd3 Qd5 Qb1 Qdd1+
r1r5/P3NR2/1q4pk/KR1b4/BP1pQ1n1/6PB/qnnPQ1Bq/b5NQ w - - 0 1 legal: proof: f4 a5 h4 b5 c4 e5 fxe5 a4 h5 g6 h6 a3 cxb5 Qg5 b3 Qf6 Bb2 Qg7 hxg7 axb2 e4 f5 a4 Kf7 a5 c5 b6 h5 a6 d5 a7 f4 b7 c4 e6+ Kf6 b4 Kg5 g3 f3 e5 c3 e7 c2 e8Q c1N e6 h4 e7 h3 Bg2 h2 Qe2 f2+ Kd1 f1Q+ Kc2 Nc6 b8Q Qf6 Ra5 Bb7 Rb5 Kh6 Nc3 Nd3 Kb3 b1Q+ Ka4 Nd4 Ka5 Nc2 Qc6 Qe6 e8B Nb2 Qbe5 Nf6 g8B Ng4 Q5e4 Bg7 Bd7 Qd6 Bge6 Rhc8 Be8 Nf2 Beh3 Ng4 Nf3 Bh8 Rf1 h1Q Ng1 Qh2 Rf7 Qf6 Nd1 Qe6 Ne3 Bc3 Bd7 d4 Nd5 Qd6 Ne7 Qc5 Qf6 Bd5 Qff1 Qd6 Rb7 Qa2+ Ba4 Nd3 Rb5 Ba1 Nf3 Qf6 Qh1 Nb2 Ng1 Qb6+
2K1nb1B/Pb2p1r1/6rq/4P2k/n1Q1RPR1/q2RnNB1/1p2P1BN/2rQ4 w - - 0 1 illegal: No proof kernel
1kBBq3/pPN3N1/1Pq3P1/3b1bN1/1Qqnpr1R/5R2/KBbnP1r1/4Q3 w - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bd7 g5 Bh6 g6 Bg5 hxg5 Bc8 g7 Kd7 d4 e5 Kd2 h5 Kc3 f5 Kb3 c5 g6 Kc7 Rh3 h4 Be3 f3 Nd2 c4+ Ka2 f2 b4 f4 Ne4 f3 Bc1 c3 Ng3 c2 Bb2 c1Q Nh5 Nf6 g8Q Nc6 Ng7 Ne4 Qf8 Nd2 d6+ Kb7 d5 Nd4 Rh2 h3 d7 Rh4 d6 Rg4 Bg2 f1B Rh1 h2 Nh3 Qc2 Ng5 Qc6 Bh3 Bg2 Qg1 Rg3 Rf1 Qe7 Be6 Bh3 Qf2 Rg2 Qe1 Qf7 Qe7 f2 d8N+ Kb6 d7 Kc7 Rfg1 f1Q Qc5 Q1f2 Rf1 Qe3 Rf3 Qd3 Qc3 Qdc4+ Qb3 Qe7 Bf5 Bg4 Nde6+ Kb7 Nc7 Qd8 Rd3 Bf3 Be6 Be4 Rf3 Qf8 d8B Bd3 Be7 Bc2 Bf5 Bd7 Be6 Re8 Bd8 Kb8 Bg4 Be6 Bf5 Bd5 Bc8 e4 b6 Re5 b7 Rf5 b5 Qfe8 b6 Rf4 Rhf1 h1B R3f2 Rg1 Rh2 Bf3 Rh4 Bg4 Rf3 Rg2 Qc1 Bf5 Qe1 Q4c5 Qc4 N2b3 Qa4 Qc4 Qab4 Nd2+
2b3nk/1QRnb1br/2q3pP/5BbQ/R1bQp3/4K2R/NrN1P1PP/1B6 w - - 0 1 illegal: Other
5N2/2P1q1PQ/1bpP2RQ/KNB1rRBN/4nb2/1b4bp/1PB1kb2/1n3r2 w - - 0 1 illegal: No proof kernel
5R2/pnn1Q1K1/1BN1PPNb/2R2Q1P/BR2n1rP/pr1n1bk1/8/q2Q2n1 w - - 0 1 illegal: No proof kernel
r2R2r1/p1NNP1N1/P2R1Q2/PQP1p1K1/1nr4B/B1rb2br/8/1knR3q w - - 0 1 illegal: No proof kernel
2Kn1bN1/Q1q5/2bbp3/B2p1RrP/1PQPkB2/2Qr1Nn1/2P1b1N1/1r5R w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 gxh5 f5 exf5 Qb6 Bc4 Qc7 a4 Qd8 Bb3 c4 axb5 cxb3 b6 Ba6 Qg4 Bb7 Qd1 Bc8 Ke2 Kf7 Ke3 Kf6 Ke4 a5 Kd5 g5 h4 b2 f4 d6 h6 g4 h5 a4 h7 g3 b7 a3 Nf3 a2 Na3 g2 Qe2 g1B Nc4 Ra6 Ne3 Ra3 Qc4 Ra7 Ng2 Nc6 b8Q Rb7 Qa7 Nh6 d4 Rg8 h8N Bd7 Nf7 Rg5 Bd2 Rg3 Rf1 a1R Bc1 b1B Qc3 Ng4 Nh6 Bh2 Qc4 Ba2 Ng8+ Kg7 Bd2 Nf2 f6+ Kf7 f5 Ne4 Be3 Qc7 Bf4 Nd8 Rf2 Bb5 Rff1 Rb1 Rf2 Ke8 f7+ Kd7 f6 Bb3 Rff1 B3a4 Qc3 Be2 Rf2 Bg7 f8Q Rb8 f7 Rb5+ Qac5 Bh6 Qg7 Rh3 f8B Ng3 Qf7 Ra5 Bg7 Bab5 Bf6 Bf8 Qh7 Ba4 Qhd3 Bb5 Qa7 Bc6+ Kc4 e6 B6g5 Nb7 Bd8 Rg5 Rff1 Qb6 Bc7 Nd8 Rf2 Qb8 Ba5+ Qc7 Rff1 Bd5+ Kb5 Bc6+ Ka6 d5 Nh6 Ke7 Qdc4 Kf6 Ng8+ Kf5 Rf2 Ke4 Rff1 Qe7 Kb6 Qc5+ Kc7 Ra1 Ng1 Nf5 Bd6 Qb6+ Kc8 Rb1 Bb8 Rd3 Rf3 Be5 Rf2 Ng3 Rf5 Bc7 Nf3 Bf4 Bd6 Be5 Be7 Bc7 Bd6 Bb8 Be5 Bbd6 Bf4 Qc7+
R3B1R1/N3r2n/3p1b2/P1P1p1q1/1QPP4/bnr2Q2/n1kB1R2/1bN1b1KB w - - 0 1 illegal: No proof kernel
1b3K1B/bQ6/PPrQ1Rp1/Pbp3Pq/2N3N1/3n4/rn1B3b/krQ1N2R w - - 0 1 illegal: No proof kernel
3q3N/b1BRnR1p/K3P2p/2Pn2QB/3kr2Q/1P1P2Nn/2Br2bb/4N2n w - - 0 1 illegal: No proof kernel
kN3r2/B3K1p1/b5r1/1N1PNrBn/2Pb1pB1/1q2rbPP/1R3Q2/1Qn3R1 w - - 0 1 illegal: No proof kernel
r5N1/1Kn1qp2/2p1P3/R1b3QB/RN1rN1P1/2Q1B1Pn/Rb2P3/n3nb1k w - - 0 1 legal: proof: f4 d5 a4 b5 axb5 g5 c4 dxc4 h3 e5 fxe5 g4 hxg4 Qe7 Ra6 Qd6 Ra1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 b4 a5 d4 h4 b6 a4 g3 c3 b7 h3 d5+ Kd7 b5 c2 e6+ Kd6 b6 a3 Qe1 a2 Nf3 h2 Nd4 Qd7 Be3 c1B Nc3 Nh6 Bg2 Qe7 Nc2 Ra4+ Nb4 Na6 b8R Bb2 b7 Nf5 Ra8 Nh4 b8N Nf3 Nd7 Bb7 Nf6 Bc6 Qd2 Ne1 Ng8 Bb7 Rf1 h1N Rf5 Nf2+ Kd4 Bc6 Be4 Nh3 Re5 Bb7 Bg6 Bc6 Bh5 Bb7 Rc1 a1N Rc2 Bc6 Kc4 Bb7 Re4 Bc6 Rd4 Ke5 d6 Bg2 Kb5 c6+ Kb6 Nc7 d7 Bf1 d8Q Ne8 Nbd5 Nc7 Kb7 Rc4 Rf4 Rd4 Ra4 Qh4 Ra8 Bc5 Nb4 Qf6 Ra5 Qe7 Nf6 Rg8 Nce4 Rf8 Qc3 Re8 Qd7 Ra8 Ng8 Qe8 Bc1 Qe7 Na6 Ba3 Ra2 Bb2 Qd8 Qe8 Ng5 Qd7 Qe3+ Re4 Qf6+ Kd5 Qec3 Qe7 Nf3 Ra4 Nd2 Rc4 Qf3+ Re4 Qg5+ Kd4 Qb3 Qd8 Qc4+ Ke3 Qc2 Rc4 Rd4+ Kf2 Ne4+ Kg2 Be3 Qe7 Qb3 Rc3 Rda4 Kh1 Nb4 Rc4 Qc3 Rd4
nn3B1b/r1QpP3/1N2nBP1/1bN5/1pr1qR2/NBPQ1R1n/1PK2b2/k7 w - - 0 1 illegal: No proof kernel
3kb3/N1p2r2/2P1pbnb/Rn5r/1Nn2P1Q/NqQB2b1/QP4KP/6BR w - - 0 1 legal: proof: e4 b5 g4 f5 gxf5 h5 a4 d5 axb5 dxe4 Qxh5+ Kd7 Qh7 Ke8 c4 g5 f4 a5 Kf2 e3+ Kg2 a4 d4 a3 d5 e2 b6 e1B f6 a2 c5 g4 c6 g3 b7 e6 d6 Bd7 Bb5 Bh6 Qc2 Ne7 Bd3 Ng6 Na3 Ra5 Qb1 Rh5 Ne2 Rf8 Nc3 Rf7 Be3 Qe7 Bf2 Kd8 Ncb5 Be8 d7 Qb4 Bg1 Qb3 Na7 Bf2 Qc1 Be1 Qc3 Bf2 Re1 a1N Re5 Nc2 Rf5 Nd4 Ra5 Rf8 f7 Nb5 Bc4 Bd4 Bf1 Bf6 Bd3 Rg8 f8Q Rg7 Qd6 Re7 Qd5 Rf7 Kf3 g2 Qdc4 Na6 b8N Nb4 Na6 Nd5 Nb4 Ne3 Qd5 Qa4 Qa2 Nc4 Be3 g1B Kg2 Bf2 Bc5 Bg3 Bg1 Ke7 d8Q+ Kf8 Qd5 Ke7 Qg5 Kd8 Qh4 Qb3
4B1r1/QP1N4/2kPKQq1/R3P1r1/1p2bNpb/P5B1/R2r2nN/n1Bn1n2 w - - 0 1 illegal: No proof kernel
b3n2R/kPQP2K1/r2Q1P2/nrbR1B1b/6pr/p3BPQ1/2bN1N1q/7N w - - 0 1 illegal: No possible last move
1R3KB1/Rpb1N1n1/1BP4r/n1PQ2b1/k3q2r/3pn3/N1PP1r2/BN2r1Q1 w - - 0 1 illegal: No proof kernel
Q7/P3bpQ1/2bb2RN/3nB2N/r1p2PPB/k2rq2P/1n3r1K/3BrRN1 w - - 0 1 illegal: No proof kernel
3Q1Bb1/Pb3p2/3qr1Qr/2n2p1K/2BP4/NbN1nP2/1Pr2Rrk/1B1R3N w - - 0 1 illegal: No possible last move, all moves rejected
2Nk2b1/PP1BrR2/5b1n/NbpQ2nP/1P2N1Rb/1KQ1rQ2/1p1q4/Br6 w - - 0 1 illegal: No proof kernel
QKR1nn2/PP1rBbR1/1n1nN1P1/Nr2p3/B3b1k1/bRPpq3/8/Q5B1 w - - 0 1 illegal: No proof kernel
1Br2n2/1BN1Q1n1/nK2r1Q1/1R2pBbN/1N2n3/p1P1R1P1/bPqP3k/1q6 w - - 0 1 illegal: No proof kernel forced: bxDB
1rrR1bNq/1Rr2N2/7Q/B2npr1P/B1P3P1/1QPK1kq1/Q1b4p/3n2B1 w - - 0 1 illegal: No possible last move, all moves rejected
r2BN2n/Q3bbnr/1Q1q2B1/2rp2kP/3PP3/1Pq1N2p/1K6/NRrR3B w - - 0 1 illegal: No proof kernel
B1Q3r1/1BK2r1k/2RP4/1qBbbNr1/2R5/P2P2p1/2pQrP2/n1Q2nqN w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 g5 h4 Kg7 d3 g3 a3 e4 h5 g4 a6 e3 f6+ Kh7 a7 g2 f7 e2 d6 e1R h6 c4 Nh3 g1Q Qc2 c3 Qd1 Be6 Nd2 Nf6 Ne4 Na6 Nf4 Re2 Ng3 Nh5 Ng2 Qb8 Kb6 Bd5 Nh4 Nb4 Be3 Nc2 Rc1 Bg7 f8Q Na1 Bc5 Be5 Nhf5 Rg8 Rh4 Rg5 Nh1 Ng3 Bg2 Nf1 Qd2 g3 Rc4 Qe8 Bf3 Qb5+ Kc7 Re8 Qf6 Reg8 a8B b6 Rb1 c2 Qe6 Qb3 Qc8 b5 Rb2 b4 Qc1 Be6 Bfb7 Bd5 Qd2 Qa4 Rb3 Qa6 Rbc3 b3 Qc1 b2 Qd2 Kg6 h7 b1R h8Q Qb5 Qh4 Rb4 Qhf4 Kh7 Qc1 Ra4 Qfd2 Ra7 Rb3 Qa6 Rb6 Qb5 Rc6 Ra4 Rc3 Rf4 Rc4 Rf3 Ng7 Rff8 Nf5 Rf7+
2Q4K/NR3Q2/qP1pn3/4rr2/2B1R2N/N1b2qPb/1p1PbP1B/2B1kb1n w - - 0 1 illegal: manual, Black can only promote light squared bishops on b1 and h1. If black g pawn takes white h pawn, then there's no other white piece to capture to get a black promotion on b1. If white h pawn takes black g pawn, then g2-g3 to let promoted bishop out prevents Ng3-h1.
1N1n2B1/n3kq1K/1PP1b3/b3b2Q/1P2b1Qq/2P1BpQR/2rp2R1/N2B2r1 w - - 0 1 illegal: No possible last move
6Q1/3RBBPr/QB2r1n1/Kn6/1q1P1n2/pN2R3/Pp1n1PR1/b2Nq1bk w - - 0 1 legal: proof: g4 c5 e4 f5 b4 g5 bxc5 d5 gxf5 g4 h3 g3 Ba6 Be6 Be2 dxe4 Bf1 Bf7 Qg4 Bh5 Qd1 Bg4 hxg4 Qd7 Rh5 Qd5 Rh1 Qd8 c4 Kd7 g5 Kc6 f6 a5 f7 b5 d3 e5 Kd2 h5 Kc3 e3 g6 b4+ Kb3 g2 Ka4 b3 Qe1 e4 Rh4 e2 Nd2 e3 Rg4 h4 Rg5 h3 Qd1 e1N Qg4 h2 Qh5 h1N Ne2 g1B Nc3 e2 Qh6 Qd6 Rg2 Nf3 Nd1 Bg7 f8B e1Q Be7 Rh7 Be2 Bc3 g7 Ra6 d4 Rb6 Ba3 Ng3 Rc1 Ba1 Rc3 b2 Re3 Nh5 Nb3 Nd2 Bg4 Qf6 Be6 Nf4 Bf7 Qd6 Bd8 Ra6 Bb6 Ne7 Qf6 Neg6 Qd8 Nd7 Qg8 Nf6 Bb4 Nfe4 Ba3 Kd7 c6+ Ke7 c7 Kf6 c8R Kf5 Kb5 a4 c5 Nc3+ Kb4 Nb5 Rd8 Qb8 c6 Qb7 c7 Qb8 Rf3 Ke4 c8Q Qb7 Rd7 Qb8 Bd8 Re6 Ka5 Qd6 Bc5 a3 Qa6 Qf8 Rh3 Qe7 Bdb6 Qf8 Rh1 Kf3 Be7 Qb8 Rgh2 Qb7 Rh3+ Kg2 Re3 Qb8 Rh4 Qb7 Rg4+ Kh1 Rg2 Qb8 Reg3 Qd6 Re3 Qb4+
n3K3/1QR1BP1B/NPPQp3/4b1qb/p2q1Bk1/P3b3/1r2n1Nr/1bRR4 w - - 0 1 legal: proof: e4 b5 c4 h5 g4 c5 gxh5 f5 exf5 bxc4 d4 Qc7 dxc5 Qd8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 h4 a5 b4 d4 h6 a4 c6 e6 a3 d3 h7 g6 h5 d2 b5 c3 h6 c2 b6 Qd7 Nh3 Qa7 Nc3 Bc5 Nb5 Qe7 Bd3 Ba6 Nc7 g5+ Ke4 g4 f4 Bb5 Na6 g3 Rb1 g2 Re1 Kf7 Ke5 g1Q f6 Be3 f5 Qf2 Be4 Bd3 Nf4 Ra7 Ra1 Rd7 Ng2 Qd8 Rh1 Ne7 Rg1 Nd5 Re1 Rf8 h8R Nf4 h7 Ne2 Rg8 Qh4 h8Q Qg5 Rg6 Rg8 Qh7+ Rg7 Rg1 Rd4 Rh6 Rb4 Rh3 Qh8 Kd6 Rb2 Kc7 Bc4 Bd3 Ba2 Rh4 Bb1 Rg4 Kf8+ f7 Ke7 f8B+ Kf6+ Kd8 Rg6 Qb7 Rh6 Rf1 Rh2 Ke8 Bf4 Rh4 Be5 Rh7 Qhg7 Rg1 Qh8 Rc7 Qhg7 Qf1 d1B Bf4 c1B Qf3 Be3 Qd5 Qh8 Qd6 Qhh4 Bg3 Qd4 Bf4 Bbc2 Rc1 Bb1 Nb4 Na6 Be7+ Kg7 f6+ Kh6 f7 Kh5 Bh7 Kg4 Re1 Bdc2 Red1 Bg6 Nd3 Bh5 Nc5 Nb4 Rd7 Nd5 Na6 Nc7+ Kd8 Na8 Rc7 Bg1 Ke8 Be3
k2nbKb1/1N1PR2r/BQ2ppNQ/1P4r1/1P4rn/1RqBBP1R/2rq4/8 w - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 Kd2 Kd7 Kd3 h5 Ke4 c5 Kf5 a5 b4 c4 g4 c3 g5 h3 g6 a4 g7 h2 Ra3 h4 Rb3 h3 Bd3 a3 Qh5 a2 Qh6 a1Q Ne2 f6 Kg6 c2 Kf7 Ra7 Nbc3 Rh7 Ne4 Qc3 Be3 c1R Nf4 Rc2 Ng6 Nc6 Re1 Bb7 Nc5+ Kc8 d7+ Kb8 d6 h1R d5 h2 Re2 Bc8 Nb7 Rg1 Re1 h1B f3 Ka8 Re2 Rg4 Rh2 Bg2 Rh3 Qa5 d8Q Qa2 d7 Bf1 Qc7 Nd8+ Kf8 e6 d6 Ne7 g8B Nf5 Qb6 Nh4 Be4 Rg7 Bh7 Bd3 Bd5 Qab2 Bc6 Qd2 Bd5 Qbc3 Bc6 Nf7 d8R Be4 Re8 Nd8 Re7 Bd7 Bd5 Be8 Bc6 Rg5 Bd7 Bd3 Bc8 Rg4 Nc5 Rc7 Nb7 Rc5 d7 Rcg5 Nh8 Be4 Bf5 Rh7 Ng6 Bc6 Bd3 Be4 Nc5 Bf5 Ba6 Be4 Nf4 B4g6 Nb7 Bgf7 Ng6 Bg8
4kb1B/2P1qnP1/1Pprq1b1/N2RPr1R/6QB/5pK1/b4Qb1/2n2RNB w - - 0 1 illegal: No proof kernel
1B2qN1r/Q1P1p1K1/3N1r1b/2n1P3/R3bnbq/QP2p2B/1B1P1RN1/5bk1 w - - 0 1 illegal: No proof kernel
1Kqr1n2/P3PNk1/3P1Rp1/1RbnN2B/1B2B1P1/Q1qp1rrQ/1r6/1Q5b w - - 0 1 illegal: No possible last move, all moves rejected
Qr3Bq1/RK6/1n6/Pn1kb3/2pN2b1/1RP4B/nQP1Pp1R/qb2q1BN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 axb4 Bg2 Ra3 Bf1 Rc3 dxc3 Be7 Bg5 Bc5 Bc1 Bf8 Kd2 Ke7 Ke3 Ke6 Kd4 f5 h4 d5 a4 c5+ Ke3 g5 a5 d4+ Kf3 f4 Ke4 g4 h6 d3 h7 g3 h5 b3 h6 d2 Ra3 b2 Nh3 c4 Rh2 b4 Nf2 f3 Nh1 g2 Rb3 g1Q Na3 b1N Nb5 Nd7 Ba3 Ne7 Qc1 d1Q Qb2 Bg7 Bg2 Rf8 h8Q Nc6 h7 Qge1 Bf1 Nb6 Bh3+ Kf7 Nd4 f2 e6+ Kf6 e7 Bg4 e8R Kf7 Qa1 Be5 Qb2 Qg5 Rd8 Qg8 Ra8 Rb8 Ra6 Ke7 Ra8 Kd6 Ra7 Qe6 Qc8 Qg8 h8B Qc1 Qb7 Qcd1 Qa8 Qc1 Qa2 Qb2 Bg7 Qa1 Bc1 Kc5 Bf4 Na3 Qb2 Nb5 Bf8+ Ne7 Rg2 Kd6 Bh2 Kc5 Ra3 b3 Bg1 Kd6 Rh2 Kc5 Qa2 b2 Rb3 b1B Qb2 Kd6 Bh6 Ned5 Bg7 Nb4 Bh6 Kc5 Bf8+ Nd6+ Ke3 Bf6 Kf4 Bg5+ Ke5 Bf4+ Kf6 Na2 Ke7 Rb7+ Kd8 Rb8+ Kc7 Be5 Bg7 Rf8 Bh6 Nb5+ Kb7 Kd5 Bg7 Rd8 Bf8 Rb8+
3QnQN1/pN6/P1r1P2R/r1RnqnPB/1Npq2b1/1k6/1r2q1P1/B3K1R1 w - - 0 1 illegal: No possible last move, all moves rejected
N1B4r/p2B1KR1/Qq1nQ1NB/4Pn2/2R1bp1P/5bbN/PPqq1n2/k7 w - - 0 1 legal: proof: f4 e5 d4 h5 dxe5 b5 g4 Ba6 gxh5 Bc8 c4 bxc4 e4 Ba3 f5 Bf8 e6 Ke7 e5 Na6 Qd3 Rb8 Qd1 Rb6 Bh6 Rb4 Bc1 Bb7 Bh6 Qe8 Bc1 Kd8 Be3 Kc8 Bh6 Kb8 Bc1 Bc8 Bh3 Qd8 Bf1 Rb6 e7 Re6 fxe6 Kb7 Bd3 Kb6 Bf1 Kc6 Kd2 Kd5 Kc3+ Ke4 e8Q c5 h4 d5 h6 g5 e7 f5 h7 g4 Rh3 g3 Nf3 g2 Qc6 g1N e8B f4 Bd7 Bb7 Qc7 d4+ Kc2 d3+ Kc3 d2 Bc8 Ne7 Na3 Nf5 Qe7 Qb6 Qa4 d1B Nb5 Nc7 Qe6 Ne8 Nc7 Ned6 Rg3 Nh3 Na8 Nf2 Ng1 Bf3 Qa6 Bd5 Bh3 Be7 Kc2 c3 Rg7 c4 Bd2 Kd4 Bg4 Bd8 Nh3 Bde4+ Kc1 c2 Bb4 Be7 Kd2 Bf8 Rc1 c3+ Ke1 Ke3 Kf1 Kd2 Bc5 Rg8 h8N Be7 Ng6 Rh8 Kg1 Bd8 Kh2 Be7 Rh1 c1Q Ba3 Qc2 Rc1 Nf7 Bd7 Bc5 Bb4 Bd4 Be7 N7d6 Bg5 Qd1 Bh6 c2 Ra1 c1Q Rb1 Qcc6 Rc1 Qca4 Rc4 Qac2 Bc8 Kc1 Qe7 Kb1 Ng1 Ng3 Bgd7 Qcd2 Qe6 Nfh1+ Kh3 Q2c2 Qf5 Qdd2 Qe6 Bg2+ Kg4 Bgf3+ Kg5 Bf2 Kf6 Ka1 Nh3 Ngf5 Rc3 Bg3 Rc4 Ne8+ Kf7 Nf2 Ra4 Qda5 Rd4 Qad2 Rc4 Ned6+
5r2/2r3pb/2NRBpPk/2P1q2N/1KPb1b2/1Rn1bQ2/P4Q1b/1RB2r1B w - - 0 1 illegal: No proof kernel
1r1N3Q/r1Nk1r2/R1b2pBP/3PnRB1/2p1r2K/r3NPqb/PbQ5/7Q w - - 0 1 illegal: No possible last move
B3Nbn1/P2pkn2/p1P2q2/2b2B1Q/R3n2B/Pn3b1r/1K3PR1/n2N1QQ1 w - - 0 1 legal: proof: e4 f5 exf5 c5 d4 cxd4 h3 Nc6 h4 Nb8 b4 g5 hxg5 a6 b5 Ra7 b6 Kf7 bxa7 Ke8 Nf3 b6 Ng1 b5 Kd2 e5 g4 h5 c4 h4 Kc2 d3+ Kb2 b4 g6 b3 g5 d2 g7 e4 f6 h3 g6 e3 f7+ Ke7 c5 e2 Rh2 e1B Na3 Rh4 Nc4 Nf6 g8B Rh6 g7 Nc6 Bg2 Bb7 Ne2 Ne5 Nd6 Bf3 Bh7 Ng8 Ne8 Qb6 Bc2 Qf6 Bf5 Rh5 Bh1 Rh7 Rg2 h2 Nc3 Rh3 Qe2 d1N+ Kb1 b2 Qf1 Qe6 Bg5+ Qf6 Bh4 Ne3 Nd1 Bb4 a3 Nh6 g8Q Nc2 Qg5 Ng8 Qh5 Ng4 Ka2 Ne5 Rc1 b1N Kb2 Na1 Rc4 Nd2 Rcg4 Ndb3 Re4 Bd2 Ra4 Be3 Rg7 Be2 Ba8 h1N c6 Bf3 Rg2 Bc5 Nc3 Bg7 Nd1 Ng3 f8Q+ Kd8 Qg4 Ne4 Qf7 Bgf8 Qfh5 Ke7 Qg3 Nc1 Qh2 Ncb3 Qhg1 Nf7+
3q2rb/pQnN2B1/3pBP2/3Rb1N1/1bKP1k1b/4b1RP/P5nQ/5BRq w - - 0 2 legal: proof: e4 f5 exf5 g5 h4 b5 c4 bxc4 Rh2 g4 Qe2 Na6 Qd1 Rb8 Rh1 Rb6 Nh3 h5 Qa4 g3 Qc6 Bb7 Qe4 Rg6 Qg4 Rg5 hxg5 h4 Ng1 h3 Qf3 h2 Qd1 Bf3 Qe2 Bg4 Qd1 Bh3 gxh3 Qb8 Qg4 Qa8 Qd1 Qd8 Ke2 Kf7 d4 e5 b4 c5 f4 c3 Kd3 d6 b5 c2 b6 g2 f6 Ke6 g6 Kf5 g7 e4+ Kc4 e3 f7 e2 b7 e1B b8Q Nf6 g8B Nc7 Na3 Ng4 Qb7 Bb4 Qd2 Bg7 Nf3 g1B Ng5 Bf2 Rg1 Bh4 Rg3 h1Q f8R+ Bf6 Bf7 Rg8 Qh2 Bh8 Be3 c1B Be6+ Kg6 f5+ Kh5 Bg1 Bf4 Be3 Bfe5 f6 Kh6 Re8 Kg6 Bc1 Kh6 Re7 Kh5 Rh7+ Kg6 Rh5 Ne3+ Kd3 Ng2 Nc4 Ne3 Nb6 Ng2 Nd7 c4+ Ke2 c3 Kd3 c2 Kc4 Qb8 Bf4 c1B Nf7+ Bg5 Be2 Be3 Rg1 Qa8 Bf1 Qd8 Bg4 Bh4 Bh6 B5f4 Rd5 Be5 Ng5 Nf4 Be6 Ng2 Bf7+ Kf5 Be6+ Kf4 Bf8 Bc1 Bg7 Be3
1KRn2B1/1P1p1q2/2PP1RN1/1q1rqprQ/2q2Nb1/2Q5/2b2kBP/Q1B1b3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a3 Na6 a4 b4 Bg2 Nc7 Bf1 Nb5 axb5 Ba6 Na3 Bb7 Nb1 Bc8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 c4 g5 d4 a4 c6 b3 c7 b2 c5 a3 h6 f3 h7 g4 b6 f2 Nd2 a2 Nh3 g3 Nc4 g2 Ne5 g1Q Ng6 Nh6 Bg2 Ba6 c8Q f1Q b7 Rg8 h8Q Qb6 c6 Bb4 d5+ Kd6 Qe8 Kc5 Ke5 b1B e4 Qgf2 Nhf4 Qc4 Rf1 Bc2 Qd2 Bb5 Qc3 Ra5 Qf6 Rg7 Qh8 Bba4 Qh4 Bd1 Qh5 Bg4 Qa8 Qa6 Qh8 Bc2 Qa8 Kb6 Qh8 Rc5 Kd6 Qab5 e5 f6 e6 Nf7+ Ke7 Nd8+ Kd6 Rg8 e7 Ba5 e8B Rg7 Ne7 Rg5 Neg6 Bb4 Bf7 Ba5 Qb2 Be1 Qc3 Qf3 Bg8 Qf2 Rb1 a1Q Rb4 Qf3 Ra4 Qab2 Ra8 f5 Rg1 Qg3 Rc8 Qba2 Qa1 Qe3 Qhc3 Qed4 Ke7 Qab3 d6 Rd5 Ke8 Kc5 Ke7 Bh4 Re1 Qh8 Re6 Be1 Qcb2 Qhc3 Rf6 Kd4 Ke8 Bd2 Qba3 Ke3 Q3b2 Q3d4 Qc3+ Kf2 Ke7 Be1 Ke8 Ne6 Ke7 Qe5 Ke8 Ng7+ Kd8 Qa2 Kc7 Ne6+ Kb8 Nd8 Be6 Qab2 Bf7 Qe8 Bg8 Qf7 Qb3 Qbd4 Qbc3 Qe5
N1n3BQ/1rPnq2N/q1pQq1bb/6B1/1Pk1P1bp/5K2/R2b3P/1B2R2N w - - 0 1 illegal: No proof kernel
3r4/bPpQ1Q1q/2r1P3/2q1kr2/qpP2b2/2N2R1N/1P3Q1R/n1BqN1KB w - - 1 2 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 Nh3 b4 Ng1 Ba6 h4 g5 Kd2 g3 Qe1 g4 Qd1 Bb5 axb5 Na6 Ke1 Nc5 Qd3 Ne4 Qd1 Ng5 hxg5 Bd6 Rh2 Bc5 Rh1 Bf8 f4 Ke7 c4 Ke6 e4 a5 b6 h5 b7 d5 g6 g2 Kf2 a4 g7 h4 Nd2 d4 Ne2 g1Q+ Ke1 h3 Ra2 d3 Ra3 h2 Qb3 g3 Nf3 g2 Nc3 Bd6 Qc2 Ra5 Qf2 Nf6 g8N Rh6 Ne7 Nd5 Ng6 Ne3 f5+ Kd7 f6 Ke6 f7 d2+ Ke2 d1R f8Q Nc2 Ne1 Na1 Rb3 a3 Nf4+ Kd7 Qg8 a2 e6+ Ke7 Qe8+ Kf6 e7 Rf5 Qd7 Ke5 e8Q+ Qe7 Qg6 Qh7 Qgf7 Rg6 Nh3 Rgf6 Qf3 Qc5 Qf2 g1B Bg2 Rd4 Qf1 Be3 Qf2 Bf4 Kf1 Be7 Nd1 Rc6 Rf3 Bd6 Nc3 Bf8 Qc8 Rd8 Qcd7 B8h6 Rg1 Be3 Bh1 Bhf4 Rg6 Qb5 Rg5 Ba7 Rh5 Qc5 Bg2 h1Q+ Ng1 Qa5 Rh2 Nb3 Nc2 a1Q Qfe8+ Kf6 e5+ Kg5 e6 Q1a4 Qef7 Qc5 Rhh3 Qh2 Bh1 Na1 Rh6 Bd2 Rh4 Qhd6 Rh2 Bf4 Ne1 Qdd1 Kg2 Rf6 Kf1 Kf5 Nh3 Ke5 Kg1 Rf5
2k4b/b4NPB/N2R1pPq/P3rn2/4p1r1/1rB2PqQ/2K4Q/Nr1b1RB1 w - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Bg4 cxd5 Bf3 b4 axb4 e4 Na6 d6 Bg4 d5 Bc8 e5 Bg7 Bc4 Kf8 Bd3 Nb8 Bf1 Nd7 e6 Bh6 exd7 Kg7 Ba6 Kg6 Bf1 Bf8 Kd2 Kf5 a4 h5 f3 b5 g6 e5 a5 c5 g3 f6 Rh3 e4 Rh1 c4 Bb2 h4 Ne2 b3 Qc2 b4 Na3 h3 Nb5 h2 Bc3 b2 Nc1 b1R Nc7 b3 Na6 b2 Nb3 Qc7 d8N Nh6 d7 Bg7 d6 Re8 Nf7 Ke6 d8B Kd7 g4 Nf5 g5 Bh8 Bh3 Re5 Rf1 h1Q g7 Rb8 Bg4 Qh6 Ra2 Re1 Na1 b1R Qb2 Rb4 Kc2 Rb3 g6 Qb8 Bb6 Bb7 Bg1 Kc8 Ra4 Bd5 Rb4 Bc6 Rb6 Bb5 Qc1 Re2+ Qd2 Rg2 Bh3 Rg3 Qh2 Rg4 Rc6+ Qc7 d7+ Kb7 Be1 c3 d8Q Be2 Qd2 Kc8 Rd6 Qa7 Qg5 Qf2 Qh4 Qg3 Bd2 R1b2+ Kc1 c2 Qh5 Qh7 Bc3 Rb1+ Kd2 c1B+ Kc2 Qh6 Qh4 Rf4 Bg4 Ba3 Q4h3 Bc5 Ng5 Ba7 Bb6 Kb7 Bg1 Ne7 Be6 Rg4 Bg8 Nf5 Nf7 Kc8 Bh7 Bd1+
2k1r3/3n4/1qqK2nP/3pBpqP/1n3R2/q1NNQNrB/QR3P1P/2R4b w - - 0 1 illegal: Other
QbBn3q/4RNn1/R2Npp2/3bP2n/1b1Pq2P/b5RK/2B2P2/kr3QQ1 w - - 0 2 legal: proof: c4 a5 g4 d5 cxd5 b5 b4 e6 bxa5 h6 g5 Ke7 g6 Kd7 Bb2 f6 Bd4 Bd6 Be3 Bf8 Bg5 hxg5 Bh3 Ra6 Bf1 Rd6 Qb3 Ke8 Qc2 Rd7 Qd1 Rf7 gxf7+ Kd7 e4 Kd6 h4 Kc5 d4+ Kb4 a4 c5 d6 c4 d7 c3 a6 g4 a5 g5 a7 g3 a8B c2 a6 Kb3 a7 Kb2 Nf3 c1B Be2 g4 O-O b4 Kg2 b3 Ba6 Ne7 Rg1 Nbc6 Qd3 Bb7 Rf1 Nf5 Nbd2 Ng7 Qc4 Bb4 f8R Qe8 Rh1 Nd8 Rg1 Bd5 Ng5 Rh5 Rf7 Qh8 Bc8 Rh7 Kh1 g2+ Kh2 g3+ Kh3 Rh5 Re7 Rh7 Rf1 g1B Nf7 g2 Ra6 Bh2 Rg1 Bb8 Qf1 Rh5 Bc6 Re5 Ba4 Ka1 a8Q b2 Nc4 b1Q Bd1+ Bca3 Ncd6 Rg5 e5 Qe4 Nf5 Rg6 N5d6 Rg3+ Kh2 Rd3 Bc2+ Rd1 Kh3 Rb1 Rh1 Nc6 d8Q g1N+ Kg3 Bc5 Qg8 Nd8 Rh3 Ne2+ Kh2 Nf4 Rg3 Nfh5 Kh3 Ne8 Qg4 Neg7 Qgd1 Bb4 Qg1 Ba2 Qdf1 Bd5
1R2Kr2/R3R3/q2bpB2/PNrQ1B2/3P1pB1/Qr1n1q2/P3P1nN/q3kr2 w - - 0 1 legal: proof: c4 g5 f4 gxf4 b4 a5 bxa5 d5 cxd5 Qd7 g4 Ra6 g5 Qd8 h3 Bg4 hxg4 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Kf5 Kb4 d4 h5 g6 b5 d6 c5 d7 c4 g5 h4 g7 h3 g6 c3 Bg2 c2 Ke5 f5 Ke6 h2 Kf7 f3 Bh6 c1Q Bf1 e6 Qd3 f4 Bg2 f2 Nf3 f1R Qe3 Bd6 Qf2 Ra7 Qh4 Qb6 Bg5 Qa6 Nc3 Rh5 Bf6 Nc6 Bh3 Rc5 Bg4 Ne5+ Ke8 Nd3 d8Q Nh6 g8R Rf7 g7 Nf5 Qh3 Ne3 Rb1+ Qb2 Rf8 Ng2 g8B Kc4 Rc1 b4 Bh7 b3 Bhf5 Qa1 Nb5+ Kb4 Qa8 b2 Qd5 b1R Rg1 h1Q Nh2 Rb3 Rb1 Rg7 Rf7 Rh7 Re7 Rf7 Na3 Kc3 Nb5+ Kd2 Qhf3 Ne5 Rb2+ Ke1 Qe3 Rb4 Qa3 Nd3 Ra7 Rb3 Re7 Ne3 Rg3 Qf3 Rh3 Rg7 Rh7 Ng2 Ra7 Rg5 Rhd7 Rg7 Re7 Rf7 Nc7 Rbc3 Rb8 Rb3 Nb5 Rf8+
bQ1B4/1p1p2Pk/P3Q2P/1r1N1b2/Rn3bRq/nP2BR2/1N1bn3/4qB1K w - - 0 1 illegal: Other
1N2Q3/3P1p1n/3RR3/1P4p1/1rP1N3/q1rBBk1n/KN1QbP1r/3qB1nn w - - 0 1 illegal: No possible last move, all moves rejected
r1b4R/k1rp2r1/3NP1B1/Pqp3rB/1bP1Q2R/R2NB3/2Pr1K2/2n1r1Q1 w - - 0 1 legal: proof: f4 e5 fxe5 a5 b4 axb4 g4 h5 gxh5 Nc6 d3 Na5 Kd2 Qe7 Ke1 Nc4 dxc4 Qd8 a4 b5 e4 f5 h4 g5 e6 b3 e7 g4 h6 b4 e5 f4 h5 b2 a5 b3 h7 g3 h6 f3 Qd4 g2 Bf4 f2+ Ke2 Nf6 Bg3 Nh5 Qc3 Rg8 h8R Rg5 Nd2 b1R h7 b2 Bf4 Rd1 Ngf3 b1R Ra3 g1R Ne1 Rb7 Qf3 Ng3+ Ke3 c6 Qe4 Ne2 Rh4 Nc1 Nd3 Rc7 Be2 f1R Bg4 Rfe1+ Kf2 Rg3 Be3 Rg7 Bf5 R3g5 Bg4 Bb7 Bf3 Qb8 Bg4 Bc8 Be2 Kf7 e8B+ Ke7 e6 Kd8 B2h5 Bb4 Bhg6 c5 Bh5 Rca7 Beg6+ Kc7 Qg2 Qb6 Ne4 Kb8 Nd6 Qc6 Qe4 Qa4 Rf8 Qc6 h8Q Rc7 Qg8 Ka7 Re8 Rh7 Qg7 Qb5 Qgd4 Rg7 Rh8 Ne2 Qa1 Rd2 Qd1 Rh1 Qf1 Rhg1 Qfg2 Re1 Qg1 Nc1+
2Q4n/PrQ1Bn2/1b1N2P1/3RNnpP/Qbp4k/4rB2/5KP1/Rbb3Rb w - - 0 1 illegal: No proof kernel
NB4n1/Nb6/PN3rpk/Qr3Rn1/2pQrBP1/2PnQP1r/3K2q1/2n3R1 w - - 1 2 legal: proof: e4 a5 h4 f5 b4 d5 bxa5 g6 exd5 Nf6 h5 Kf7 h6 Ke8 Bd3 Bg7 hxg7 Ng8 Be4 fxe4 a4 Kf7 d4 e5 g4 h5 d6 c5 c3 b5 f3 h4 a6 h3 a7 h2 a5 b4 a6 e3 d7 c4 d5 e4 d6 b3 Ba3 e2 Bc1 b2 Ra4 Nc6 Na3 b1R Kd2 e1N Ne2 Nd3 Nf4 Nd4 Nd5 Ne2 Nb6 Rh3 Nb5 Bb7 Rg1 h1N Ra5 Nhf2 Qe1 Qh4 d8Q Qg3 d7 Qg2 Qd1 Rc8 a8N Rc6 Na7 Rf6 Rf5 Rb4 Qa4 Rb5 Qa5 e3+ Kc2 Ng3 Bd2 e2 Bf4 e1R Kd2 Re4 Bb8 Nh6 Qh8 Nc1 d8B Ng8 Bdc7 Ree5 Qh6 Re4 Qe3 Nfd3+ Qe2 Nh6 Bf4 Kg8 Qf2 Kh7 Qe2 Ng8 Qf2 Nh1 Qe2 Nhf2 Qe3 Ne5 Qd4 Nf7 Qe3 Ng5 Qd4 Ne7 g8Q+ Kh6 Qe6 Ng8 Qee5 Ncd3 Qe3 Nc1 Q5d4 Nfd3+
7N/Nbk1bpq1/1Np3rP/Bn2R2B/K1P5/Br3PP1/3br1b1/QQ2r1R1 w - - 0 2 legal: proof: e4 g5 a4 d5 Ba6 dxe4 Bf1 b5 axb5 g4 Nh3 g3 hxg3 Bf5 Ng1 Bc8 Be2 h5 Bg4 h4 Qe2 h3 Ra3 h2 Bh3 Na6 Ra1 Nb4 Qd1 Nd5 Be6 Nb4 Bc4 Nd5 Be2 Nf4 Bf1 Nh3 gxh3 Qd3 Nf3 Qd6 Ng1 Qd8 d4 Kd7 Kd2 a5 Kc3 e5 Kb3 e3 c4 e4 h4 e2 h5 e1B b6 c6 b7 e3 b8N+ Kc7 d5 e2 h6 Bd6 Ka4 Qe8 b4 Nf6 b5 Qd8 b6+ Kb7 Ba3 Bd2 Nh3 e1R Nd7 Re2 Nc3 Rg8 Nb5 Re5 Na7 Re2 Rg1 h1B Nf4 Qf8 Ng6 Rb8 Nh8 Be7 d6 Ne8 f3 Rg6 Bh3 Qg8 Bg4 Bg2 Bh5 Nc7 Rb1 Qh7 Rb5 Qg7 Re5 Nb5 Qa1 Bf1 Nf8 Bg2 d7 Rg4 d8B Rg6 Kb3 a4+ Kb2 Ka6 Nd7 Ka5 b7+ Ka6 Bd6 a3+ Kb3 a2 Nb6 Ka5 Ba3 Ka6 Qc3 a1R Ka4 Rae1 Qd4 Ra8 b8Q Bb7 Qc7 Rc8 Qb8 Rc7 Qc3 Rd7 Qa1 Rd3 Qc8 Rb3 Qf5 Bc8 Qfb1 Kb7 Nd5 Kb8 Ba5 Bb7 Nb6 Kc7
3k1Nn1/pB6/2P1pn2/K3Pn1Q/2R1r2b/rR2r1P1/1BnP1B2/Nb1QR1r1 w - - 0 1 illegal: No possible last move, all moves rejected
4RR2/Nr1P1P1B/P3B1K1/k1pP2Rr/1n1N1b1p/2n4Q/2Qq1B1p/1rb2b2 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 Kd3 e5 Ke4 h5 d4 c5 a4 Kc7 g4 b5 f4 b4 d6+ Kb7 g5 b3 g6 b2 a6+ Kb6 a5+ Kc6 d7 h3 f6 h2 Kf5 e4 a7 e3 d5+ Kc7 g7 e2 f7 e1B a6 Kb6 Nf3 Nc6 Be3 Rh6 Bh3 Bd6 f8R Bb4 Qc2 Bb7 Bf2 Ba3 Re1 Qb8 Nd4 Ka5 Nc3 b1R Ncb5 Nf6 g8B Ne4 Bh7 Nc3 Ree8 Nb4 Kg5 Be5 f5 Bc6 f6 Bf4+ Kf5 Qb6 f7 Rb8 a8Q Rb7 Na7 Bb5 Qd8 Be2 Qh4 Bf1 Bg4 Qd8 Qh3 h4 Ra2 Rh5+ Kg6 Qb6+ Be6 Qb5 Rb2 Qe2 Rb3 Bac1 Ra3+ Na4 Rg3 Nc3 Rg5 Qd2
7q/R2pB1Br/P3R1Pr/bbN2P1Q/QnP2r1p/b2K1p1B/R7/5nkN w - - 0 1 illegal: No proof kernel
B1NK2B1/2P1p3/1q1rQbnR/4Rr1R/PQ2p3/B1p1kP1b/b2nP2n/7N w - - 0 1 illegal: No proof kernel
n1N3k1/R1p2pq1/2bR2rQ/2P1N1Nn/R3r3/PPQnB2p/5P1K/r1bB4 w - - 0 1 legal: proof: h4 g5 d4 e5 dxe5 gxh4 Nd2 b6 Nb1 b5 Na3 b4 Nb1 b3 axb3 Bh6 Qd3 Bg7 Qd1 Bf8 Bf4 a5 Be3 a4 Bc1 a3 bxa3 Bd6 Kd2 Be7 Ke1 Bf8 c4 h5 e4 d5 g4 d4 e6 d3 e7 h3 c5 h4 e5 h2 g5 Be6 g6 Bd5 g7 Bg2 Nd2 Qd5 Ne4 Nd7 Qf3 Rb8 Be2 Qd4 Be3 Rb6 Ng5 Rc6 Bd1 Ngf6 g8Q Qd6 Qg6 Nb6 Qh6 Nh5 Ra2 Rg8 Rd2 Na8 Qh3 Rg6 N1f3 Qf6 Rg1 Bh1 Kf1 Qh8 Rg4 Qg7 Ra4 Rce6 Qg3 h3 Ra7 Kd7 e8N Ke7 Nd6 Bg2+ Ke1 Bh1 Nc8+ Ke8 Kf1 Be7 Nd6+ Kf8 Nc8 Kg8 Ra4 Bd8 Ra7 Re7 e6 Re8 Ne5 Bc6 e7 h1R+ Qg1 Rf8 e8R Be7 Rc2 d2 Rd8 Re8 Rd6 Bf8 Rc4 Ree6 Be2 d1N Rca4 Nb2 Bf3 Nd3 Bd1 Rh2 Qg3 Rg2 Nc4 Re4 Ne5 Rh2 Kg1 Be7 Ne6 Bg5 Qf3 Bf4+ Ng5 Rg2+ Kh1 Rg3 Kh2 Rg1+ Qg3 Re1 Bd4 Bc1 Qe3 Ndf4 Qc3 Nd3 Be3 Re2 R7a6 Ra2 Ra7 Ra1
2b2n2/PpP5/N6r/Q1pQRP2/1R3nbB/1rPQ1Bb1/Nn2pK1k/qR6 w - - 0 1 illegal: No possible last move
N2Nq3/n2BB1NB/k3Kpr1/P1b3Q1/5Pbp/R1np3P/1R3b1P/3Qr2q w - - 0 1 legal: proof: c4 b5 d4 e5 dxe5 Qh4 cxb5 a5 b4 Qh3 gxh3 axb4 Qb3 Kd8 Kd2 g5 Ke3 d5 Kd4 h5 f4 g4 e4 f6 a4 h4 e6 g3 e5 g2 a5 Ba6 b6 Kc8 e7 Kb7 e8N Ne7 e6 Rh6 Ne2 g1B+ Be3 Ra7 Nd2 Nbc6+ Kc5 d4 Ra3 Bd3 Nc4 Nd5+ e7 Ka6 b7 Bf2 b8Q Rb7 Qa8+ Na7 Ng7 c6 Kd6 c5 Qc2 b3 Nb6 b2 Qe8 b1Q Qg6 c4 Qg5 c3 Na8 Qb5 Ke6 Qa4 e8B Rb1 Bg2 Rg1 Be4 Bb5 Qd2 c2 Bh7 Rg6 Bc6 Ra1 Rb1 c1Q Rb2 Qh1 Qc2 Re1 Qd1 Nc3 Bd2 Nb1 Bb4 Nc3 Bd6 Bd3 Bc5 Qb5 Be8 Qb8 Bd7 Be7 Bb4 Qe8 Bc5 Be4 Bd6 d3 Nd4 Bf3+ Qe2 Na4 Nc6 Nc3 Nd8 Bf8+ Kf5 Be7 Qd1 Be2 Ke6 Qf8 Be5 Bec5 Bd6 Qe8+ Be7 Bg4#
Q6N/rB3n2/1r2P1pn/1Pr1RB2/QB1pK2q/4b1PR/NP3pk1/4R1bq w - - 0 1 illegal: No proof kernel
3rBb2/1n1RN1Q1/1Q1PKN1Q/1P3p1P/qp3BnB/n1k2q2/RrP3p1/7b w - - 0 1 illegal: No proof kernel
2k3r1/2qRK3/3PQ1RP/2r1p2B/2P1npN1/RpQ4q/bPbQ2nr/2N1B3 w - - 0 1 illegal: No proof kernel
2qbbKq1/8/1P4Bn/1PrrR1Qr/QR1Np1QB/2Nkp1P1/1p2n1RP/8 w - - 0 1 illegal: No proof kernel
BR1nr3/RqN1q2r/PpNR1Q1b/1b3p2/n1QP2K1/1P1npP2/k7/5N1B w - - 0 1 illegal: No possible last move, all moves rejected
3B1k1K/3rq1r1/p4q1p/4R1N1/4Q1RP/NPb1PNbp/BBQ1n1P1/3nb3 w - - 0 1 illegal: No proof kernel
5b1Q/4p3/brnk1P1P/p2N3R/BbB2PQn/Bq1r2Pp/KRQ1N3/2q5 w - - 0 1 illegal: No proof kernel
1Bb2n1n/4p1rP/1PP3R1/1Qr3pN/1N1K2P1/3q1Rp1/B3qr1R/1Q1bN1k1 w - - 0 1 illegal: No proof kernel
Kb3n2/1Np1q2p/1NB2qB1/2P1rn1Q/1kbr3P/1pr4P/Q2PR3/NRR5 w - - 0 1 legal: proof: h4 a5 b4 d5 bxa5 d4 Bb2 d3 Be5 f6 exd3 fxe5 d4 Qd7 d5 Qh3 gxh3 Be6 Nf3 Bg4 Ng1 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 g5 Kb5 e4 f4 e5 a4 e3 c4 e2 f5 e1R a6 g4 f6 e4 f7 g3 a5 g2 a7 b6 a6 e3 Nf3 g1Q Nd4 e2 Nb3 Qd4 Nc3 Qf2 Na4 Bg4 Rb1 Bh6 f8R Be6 Re8 Qf6 Na1 Ne7 Bg2 Nf5 Be4 Be3 Bc2 Nh6 Bg6 Nd7 Re7 Rag8 a8B Nf8 a7 Nf5 Ka6 b5 Kb7 b4 Nb6 Kc5 d6 b3 d7 Kb4 d8N Rg7 Re8 Rd7 Kb8 Rd4 Bc6 Rg8 a8Q Rg7 Nb7 Bf2 Bf7 Rg3 Bg6 Rc3 Qa2 Rd6 Na4 Ba7+ Ka8 Bb8 c5 Rd4 Nb6 Bc4 Rg1 Rf1 Rh1 e1Q Qh5 Qee5 Rg1 Re1 Rh1 Ree3 Rhc1 Qed6 Re6 Qde7 Re4 Red3 Ree1 Re3 Re2 Re5
4Q1bk/rP1nKPpP/3qQ1qB/4pN2/1NR1Rn2/6P1/pB1b1Qq1/2r3B1 w - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 b5 a4 f5 axb5 h4 exf5 h3 g3 Kf7 Bg2 hxg2 Ra3 Ke8 Ra6 Rh3 Ra1 Rh8 Ke2 Kf7 Kf3 c5 Ke4 a5 Ke5 a4 f4 e6 d4 a3 h4 a2 b4 c4 b6 c3 b5 c2 b7 Nf6 b6 Kg8 d6 Nh5 f6 Ra4 d7 Kh7 d5 Kg8 d6 Rc4 f5 Ra4 f7+ Kh7 f6 Rg4 Qe1 Qe8 d8Q Rb4 d7 Rg4 Nf3 g1Q Nc3 Ra4 Bh6 c1Q Nd5 Bb4 f8Q Qg2 Nd4 Qcd2 Rc1 Qh3 Nf5 Be7 Nb4 Bc5 Rc4 Nf4 h5 Qf1 Rh4 Nd5 Rhe4 Bd4+ Kd6 Qf7 Qde8 Qfg2 d8B Nd7 b8B Bc3 b7 Ra7 Bb6 Qg6 Bg1 Nf4+ Ke7 Qd4 Qff7 Bd2 Qf2 e5 Bd6 Rf8 Qe6 Kh8 Bc5 Qd5 Bd4 Qc6 Bb2 Qb6 Bg5 Qa6 h6 Qd6+ Kd8 Rg8 h7 Nh3 Rcd4 Nf8+ Q8d7 Ra5 Bh6 Nf4 Qf7 Ra4 Ke8 Ra7 Qb5 Be6 Qc6 Qd5 Ke7 Qc5+ Qd6 Nd7 Qf8 Bf7 Qb8 Qc7 Qe6 Rc8 Qa8 Bg8 f7 Qb6 Qb8 Rc3 Qe8 Rc1 Rc4 Qd6+
R3Q1Nb/p1pP1NQq/1B3n2/Pp1NK3/3P3P/n2R1Br1/1bR3q1/1r2n1k1 w - - 0 1 illegal: No proof kernel
2qr2bb/1N4Q1/1b2Q2p/1K3rPb/P1BP2PN/2R1n2Q/3pB1pn/k1B4R w - - 0 1 illegal: No proof kernel
b6n/2BKNbrR/r2Q1P2/Q3p1P1/1p2Pn2/7q/1pPN1kBb/R1RB3b w - - 0 1 legal: proof: g4 a5 d4 g5 h4 f5 gxf5 c5 dxc5 Qb6 hxg5 Qd8 b4 axb4 Kd2 Kf7 Ke3 b5 Kf4 h5 Ke5 d5 f4 d4 e4 b3 a4 b4 f6 Kg6 a5 h4 a6 b2 f7 h3 c6 h2 a7 d3 c7 d2 Qe1 Kh5 f5 Kg4 f6 d1B Nh3 Kf3 Nf4 Nh6 Ng6 Rh7 Be3 Nd7+ Ke6 Bb7 c8B Rg7 Bf4 Ne5 Qd2 Nd3 Bc7 Qe8 Rg1 h1B Bd7 Be2 Bg2+ Kf2 Rc1 Qc8 Qf4+ Bf3 Qd6 Bh5 Nd2 Nf4+ Ke5 e6 Ne7 Bd5 Bb5 Bg6 Be2 Qd7 Bd1 Bc6 Ng8 Be7 f8R Bf7 Re8 Bd8 Ne7 Bd5 Ba5 Bc7 Rh8 Bb8 Rh7 Bc6 Qc7 Qd3 Qd6 Qh3 Bd8 Nh5 Nb1 Nf5 Qc7 Nh4 Kd6 Ng6 Nd2 Bb7 Kd7 Nh8 Qc6 Bh2 Qd6 Nf4 Bc7 e5+ Nf5 Rb8 a8Q Rf8 Qa5 Ra8 Nb3 Ra6 Nd2 Qd3 Ne7 Ba8 Kd8 Qb3 Kd7 Qh3+
R1nQ1N2/rQ2K2P/B1N2Np1/1n1b1P2/2br1R1P/p3pq2/1RB3Pb/6bk w - - 0 1 illegal: No proof kernel
1R1N2K1/2q1r1P1/2n3bR/2n3P1/kNBQQ1P1/B2p1r1n/p2n1PNp/b4R2 w - - 0 1 illegal: No proof kernel
2R1N1b1/b2QPRpN/1P1R3r/3b1BBb/1Pnpp3/n5PK/3qkB2/2Q4r w - - 0 1 illegal: No proof kernel
1n1RB3/1kBppQ1K/1b3rP1/2r1R1P1/2BNN2P/n2rp1rb/q1P2Q2/N7 w - - 0 1 illegal: No proof kernel
6B1/KP1Pq1PQ/nrQ3P1/5pN1/3bNQ1p/1rp1B3/r1R1rNb1/k1n3R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 Kd4 d6 f5 e5 c5 g6 a5 g7 h5 b6 h4 b7 c4 d7 a4 e6 f3 e7 a3 e8Q c3 g5 a2 g6 Nc6 b8Q Ra4 b5 Rc4 b6 Ba3 b7 Nge7 Nh3 Nb4 Rg1 Rc6 Bc4 Na6 Bg8 Kd3 Qf4 Nd5 Qde2+ Kc2 d4+ Kb3 Be3 Bc5 Nd2+ Kb2 Rac1 Qe7 d8N a1R Nf7 Be6 Nfg5 Rb6 Qc6 Ndb4 d5 Bd4 d6 Bd5 d7 Na2 Qec4 Rb1 Rc2+ Ka1 Nde4 Re1 Qg4 Nc1 Qh5 Rb3 Qh7 Rb6 Qd6 Rb3 Qcc6 Rb6 Qf4 Re2+ Kf1 f2 Kg2 f1R+ Nf2 Nd3 Kf3 Rfb1 Rcc1 Ra2 Rc2 Ndc5 Ke2 Nb3 Kd3 Qe6 Nd2 Ra3 Bf7 Re8 Bg8 Qf7 Qcd6 Re6 Qc6 Bg2 Kc4 Nb8 Ngh3 Bf6 Bd4 Qe7 Ng5 Re2 Nde4 Ra2 Bc5 Nc1 Be3 Bd4 Kd5 Rba6 Kc4 Rb3 Kd5 Qd8 Kd6 Qe7+ Kc7 Rab6 Kc8 Raa3 Kc7 Na6+ Kc8 Nc7 Kb8 Na6+ Ka7 Ra2
2r5/Rp3b2/P1nqNrQ1/4PP1P/Kp2nB2/QB1Rp2Q/2N1rB1b/1k3r2 w - - 0 1 illegal: No proof kernel
5Rb1/Q2Np1p1/5bPR/2PBn1np/3k1K2/R4Brq/1PB2qnP/Q1bN4 w - - 1 2 illegal: No proof kernel forced: wxDB
n1R2Qq1/1P2Rn2/5b2/Qn2N1pB/5K2/1kB2pPb/bpNrBPP1/4N2q w - - 1 2 legal: proof: d4 b5 b4 e5 dxe5 c5 a4 cxb4 axb5 a5 Bg5 Ra6 Be3 Rg6 Bc1 Rg3 hxg3 Bb7 Bf4 Ba6 Bc1 Bc8 Kd2 Ke7 Ke3 Ke6 c4 d5 c5 h5 c6 f5 b6 d4+ Kf4 Kd5 e6 Kc4 e4+ d3 e7 g6 e8B h4 b7 a4 c7 a3 e5 h3 e6 b3 e7 b2 Qd2 h2 Ne2 a2 Rg1 h1Q Bd7 Bg7 e8Q Nh6 Qg8+ Nf7 Qf8 Kb3 Na3 Bf6 Qa5 d2 Nc2 d1B Ne1 Na6 Bd2 Rh7 Rc1 a1N Bb4 Nc2 Bc3 Na3 Bc6 Rg7 Bf3 Nb5 Bh5 Be6 c8N Nac7 Ne7 Na8 Nc6 Bd5 Qe7 Qg8 Ne5 Be6 Qf8 Bc4 Kf3 f4 Kg4 f3 Kf4 Be6 Rc2 Bh3 Rc1 Nd8 Rc2 Rd7 Rc1 Rd2 Rc2 Na3 Nd4+ Ka2 Rc1 Bb3 Be2 Nf7 Ndc2 Bd5 N1d3 Kb3 Rgd1 Bc4 Nde1 Rd7 Rd6 Nb5 Re6 Rd2 Re7 Bd3 Nb4 Bb1 Nbc2 Ba2 Rd1 Rd5 Rd4 Rd7 Rc4 Rd2 Rc8 g5+
Rr1qNBbr/4pp1b/3QP2b/3R3P/N4Q1K/2Brp2P/q1nP1QB1/2k5 w - - 0 1 illegal: No proof kernel
B6q/2PPpn2/1rR1P1R1/3Q2pK/2bB2p1/bQ1q4/q2r1BPN/N2N2rk w - - 1 2 illegal: No proof kernel
8/n3kBPq/1N3p1n/4NPQ1/rp2q2q/1PBQrp1R/R2nPb2/1K3Q1N w - - 1 2 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 e5 c4 Be6 cxd5 Bd7 f5 Bc6 Qb3 b4 Qg3 Bb5 Qf4 exf4 axb5 Qe7 Ra4 Qd6 Ra1 Qd8 Kd1 c5 Kc2 h5 d4 a5 g4 f6 g6 c4 d6 a4 b6 h4 b3 c3 b7 a3 d7+ Ke7 d5 h3 g7 h2 g5 a2 g6 Qb6 d8N Qd6 Nf7 Na6 b8Q Qd8 Bg2 Qb6 Nh3 Qc7 Ne5 Nh6 g8Q Qc4 Na3 Nc7 Nf2 Ra4 Qc8 Nb5 Bd2 Na7 Qa6 Qe4+ Qd3 Rh7 Nac4 Rh8 Kc1 c2 Bc3 Rh7 Kb2 c1N Nb6 Rg7 Qb1 Nd3+ Kc2 Rh7 Qf1 Nb2+ Kc1 Nc4 d6+ Kd8 d7 Ke7 Bf3 Rf7 Bh5 f3 g7 Qh4 Qh7 Qe4 Qg6 Qh4 Rg1 h1Q Qg5 Qe4 Rg3 Qhh4 Rb1 a1Q Rh3 Qd5 Nh1 Qde4 Bd2 Qad4 Ra1 Qg1 Bg6 Qgg4 Bc3 Qgh5 Bh7 Qg6 Bg8 Qh7 Ra2 Kd8 Qd1 Bc5 Qf1 Re7 Be6 Bf2 Bf7 Qd5 Kb1 Qc6 Nd3 Re3 Ne5 Qce4+ Nd3 Kc7 d8Q+ Kc6 Qd5+ Kc7 Qb5 Kd8 Qd5+ Ke7 Qb5 Qd4 Ne5 Qdg4 Qd5 Qe4+ Qd3 Nd2+
2Q3Q1/5pQ1/4pqBp/Bqn1b1N1/P1q1N1PP/2nk1r1b/NRR2P1b/K7 w - - 0 2 legal: proof: c4 d5 cxd5 a5 e4 Bh3 b4 axb4 d6 Bc8 d4 g5 d5 b5 e5 Bh6 Bb2 Kf8 Bd4 Kg7 d7 Kg6 Bc3 Ra6 Bb2 Rd6 exd6 g4 Bg7 Bc1 Qxg4+ Bg5 Qd1 Bh6 Bc3 Bf8 Be5 Qe8 Bg7 Qd8 Kd2 Kf5 Kc2 Ke4 Kb2 c5 a4 b3 h3 b4 Ne2 c4 Nd2+ Kd3 Rc1 c3+ Ka1 c2 Bc3 Nf6 g3 h6 h4 Rg8 Bh3 Rg4 Qg1 Na6 Ne4 Rf4 Bf5 Bg7 Bg6 Nc5 Be1 Rf3 N2c3 Qb6 d8N Bh3 d7 Qc6 d6 Nd5 g4 Be5 Ne6 Qb6 Rb1 c1B d8Q Bcf4 d7 Bh2 N6g5 Qf6 Rb2 e6 Na2 Nc3 Qc8 Bef4 Qg3 Qf5 d8Q+ Bd6 Qe5 Ne2 Qg7 Qf6 Qdg8 Bc7 Kb1 Bce5 Rc2 b2 Q8h8 Nb3 Nac3 Nc5 Ka2 b3+ Ka3 Bf1 Qhg8 Bh3 Rc1 b1Q Na2 b2 Ba5 Qc2 Rhg1 Qc4 Rc2 b1Q Rf1 Qa1 Rb1 Nc3 Rb4 Qg1 Kb2 Bf1 Ka1 Bh3+ Rb1 Qc1 Qc6 Qa3 Qcc8 Qab4 Rbb2 Qbb5
3N2q1/4NnN1/r1pP1pqR/2B1P3/1p2kPb1/3Rnn1P/1qB5/K1QQbB2 w - - 0 1 illegal: No possible last move
2QR4/n2p2PN/1r2pBB1/1QRP1n1P/Kr2P3/N2pnk2/q1BQqb2/4q3 w - - 0 2 legal: proof: g4 c5 d4 b5 a4 h5 axb5 g5 gxh5 g4 b6 g3 f3 Bb7 Qd2 Be4 d5 Bf5 Qd4 Bg4 fxg4 cxd4 Kd1 f5 c4 Kf7 Kc2 Kf6 Kb3 Ke5 h4 Ke4 g5 a5 b7 e6 g6 f4 g7 g2 c5 f3 c6 f2 h6 Qb6+ Ka4 Ba3 b4 Qa6 h7 Qd3 h5 Nh6 c7 Bb2 c8B Bc3 b5 Qf3 b6 Re8 h8Q Qf6 Bg5 Rg8 Nh3 g1Q Na3 Qe5 Bf6 Nf5 Qh6 Ra6 Qd2 Nc6 b8Q Na7 b7 Rb6 e3 Qg4 Bd3+ Kf3 Rhc1 f1N Bc2 Qgg3 Qc7 Qe1 b8Q Qh2 Qc6 Qhe2 Ba6 Rc8 Qba8 Rcb8 Qb5 Bb4 Qac6 Bc5 Qc8 R8b7 e4 N1e3 Ng5+ Kg2 Nh7 Kf3 Qbc6 Rb8 Bc4 R8b7 Qb5 d3 B4b3 Ng4 Bd1 Bf2 Rc5 Nge3 Rac1 Rb8 R1c4 R8b7 Bbc2 Rb8 Qca6 R8b7 Rc8 Rb8 Rd8 R8b7 Rc5 Rb8 Qc8 R8b7 Kb3 a4+ Kb4 Rb8 Nb1 a3 Ka4 a2 Na3 a1Q Bb1 Kf4 Bbc2 Qg4 Be2 Qa2 Bf1 Qge2 Bh3 Nh6 Bf5 Kf3 Bg6 Nhf5 Qc4 Rb1 Q4a6 R8b6 Qb5 Rb4+
NK1N3b/2RQ2qr/2q1B3/4pB2/1Nr2qp1/R3Ppk1/P1P1bnP1/Q4r1B w - - 1 2 illegal: Other
2rn4/qpB5/2NN1Qq1/2n2B1k/p1Qnr3/2NPPbR1/PR2P1p1/q1R3K1 w - - 0 1 legal: proof: c4 a5 g4 e5 g5 d5 cxd5 e4 g6 e3 fxe3 Ba3 Qc2 hxg6 Qb3 g5 Qd1 g4 b4 a4 Qb3 Bb2 Qd1 Bd4 Qb3 Bb6 Qd1 Ba5 bxa5 Qd7 Qb3 Qd6 Qd1 Qd8 Kf2 c5 h4 f5 d6 Kf7 d3 Kg6 d7 g3+ Kg2 c4 a6 c3 a7 f4 Ba3 c2 Qe1 c1N Bf8 Qb6 d8Q Ne7 Nf3 Nec6 Nd4 Nb3 Bd6 Na6 Bc7 Bg4 Qc3 Re8 Qc4 Re4 Nc3 Rc8 h5+ Kh6 Qe7 g5 Rb1 Nd8 Nc6 Nd4 Rb2 Qa5 Rg1 f3+ Kh1 f2 a8N Rb8 Bh3 f1Q Nb6 Nc5 Nc8 Qa7 Nd6 Qa1 Rc1 Rc8 Kg2 Bf3+ Kf1 Nb5 Bf5 g4 Qee6+ Kg5 h6 Nd4 h7 Kh4 h8R+ Kg5 Rf8 Kh5 Re8 g2+ Ke1 g3 Qf6 g1Q+ Kd2 Bg4 Rg8 Qg2 Ke1 Bf3 Rg7 Qh2 Kf1 g2+ Kf2 Qh3 Rg3 Qg4 Kg1 Qg6
1B4br/r3p2p/B2b4/1Pn1Q1QN/2KRP1pN/2bQ1R1P/2P4N/1k1rq2q w - - 1 2 legal: proof: d4 a5 b4 c5 a4 cxd4 g4 f5 gxf5 b5 axb5 a4 Nh3 Nc6 Ng1 Na5 bxa5 Ra7 Be3 Ra6 Bc1 Ra8 Kd2 Kf7 Kd3 Kf6 e4 Ke5 f4+ Kf6 a6 d5 a7 g5 Nh3 a3 Nd2 a2 Nf3 Nh6 Qd2 Rb8 a8Q Nf7 Qa3 Bg7 Bg2 Qd7 Rf1 Nd8 Bb2 Qd6 Rad1 a1B Bc3 Qb6 Ba5 Qc5 Bc7 Rb7 Bb8 Qb4 Qb3 Be6 Qc4 Kf7 f6 Ra7 f5 Bb2 Qc5 Ba3 Nf4 Qa5 Qc4 Bd6 Nh5 Qb4 h3 g4 Nh2 Qa5 Rf3 Qb4 Qg5 Qb1 Kd2 d3 Kc3 d2 Bf1 Qa1+ Kb3 d4 Qd5 Qa5 Bc4 d3 Qd4 Qa1 Bd5 Qc1 Kc4 Qb1 Rc1 d1Q Qde3 Qf1 Rd1 d2+ Qe2 Qh1 Qf1 Ke8 f7+ Kd7 f8Q Bg8 f6 Qa1 f7 Qb1 Bb7 Ke6 Qh4 Ke5 Ba6 Ne6 Qe2 Bf6 Qg7 Qa1 f8N Qa5 Kb3 Kd4 Qhg5 Qa1 Ng6 Qa5 Ra1 d1R Nh4 Qae1 Rb1 Rd2 Rd1 Rd3+ Ka4 Kc3 Qee3 Bd4 Q7e5 Kb2 Rd2 Kc1 Qe2 Bc3 Kb3 Kb1 Kc4 Re3 Rd5 Rd3 Rd4 Rd1 Qd3 Nc5+
1N3B2/qP2rPQ1/1bR1n3/kP1pb1QB/pp6/B4qQ1/1KrPb1qR/1N6 w - - 0 1 illegal: No proof kernel
1n1b4/P1PR1p1p/1qB1p1R1/1rb1K2P/1q4QQ/4q1B1/RN1QP2n/3n1kN1 w - - 1 2 legal: proof: c4 b5 b4 g5 f4 a5 fxg5 axb4 Nc3 b3 Nb1 b4 d3 c5 Bb2 Ba6 Ba3 Bb5 cxb5 c4 Bb2 c3 Bc1 Ra6 Bf4 Rc6 Bc1 Rc4 dxc4 Bh6 Qd3 Bg7 Qd1 Bf8 Kf2 d5 Kg3 Kd7 Kf4 Ke6 h4 b2 a4 b3 g4 c2 a5 d4 h5 d3 a6 d2 g6 Nd7 b6 Qc8 b7 Qe8 b8Q Qc8 c5 Kd5 g7 Kc4 a7 e6 g5 Be7 g6 Nh6 g8Q Bd8 g7 Kd4 c6 Ng4 Ra2 Nh2 Na3 b1Q Nc4 b2 Qb4 Nb8 Bg2 Qa6 c7 Qb6 Qe1 d1N Qh4 Qc5 Bd2 c1B Bc6 Qb6 Qa5 Qd3 Qag5 b1Q Nb2 Qb4 Be3+ Kc3+ Ke5 Kc2 Bf4 Be3 Qgg4 Kd2 Bg3 Bc5 Qf8 Qf3 g8R Qf2 Rg7 Ke1 Qd6 Kf1 Qd2 Qd3 Rg8 Qa6 Rg5 Qab6 Rg6 Qe3+ Be4 Na6 Qc1 Bg5 Qb1 Rb8 Rg8 Qb7 Nf3+ Kg2 Rg6 Nf2 Qd3 Bd8 Rd1 Q7b5 Rd2 Kf1 Ng1 Nd1 Qc2 Rb6 Rd7 Nb8 Qd2 Qa6 Rg5 Rb5 Rg6 Qd3 Bh1 Qb6 Bc6 Qe3+
1qB5/NNn1QnB1/2Pp3r/1R2QP1b/R1P2q1p/p1K3b1/3P1QRb/k2n4 w - - 0 1 legal: proof: e4 c5 h4 f5 exf5 a5 b4 g5 a3 gxh4 bxc5 b5 a4 b4 Bd3 Ra7 Bc4 Rb7 Bf1 Rb5 axb5 Qc7 Nh3 Qb6 Ng1 Qd8 c4 e5 f4 Ke7 g4 h5 g5 a4 b6 b3 b7 e4 c6 Kd6 g6 Kc5 g7 Kb4 f6 h3 f7 h2 Nf3 b2 Qe2 Kb3 Nc3 b1Q Nb5 h4 Ne5 e3 Kd1 Qe4 Qf2 Nh6 g8R Na6 b8Q Nc7 Nd3 Bd6 f8Q Nf7 Qe7 Rh6 Bb2 e2+ Kc1 e1B Rg2 Qf5 Bg7 Qe4 Rb1+ Ka2 Kc2 a3 Na7 Qe5 Rb5 Ka1 Nc5 Qd4 Rhg1 h1N Nb7 Be5 Rg5 d6 Bh3 Qh8 R1g2 Bg4 Qbe8 Bh5 Bc8 Qe3 f5 Qf4 R5g3 Qf8 Rgb3 Qg8 R3b4 Qh8 Qc5 Bg3 Ra4 Nf2 Qb6 Nd1 Qf2 Bh2 Kb3 Qd4 Kc2 Beg3 Qe5 Qf8 Q8e7 Qg8 Bd7 Qb8 Bc8 Nb2 Kb3 Qf4 Kc3 Nd1+
2R1n1R1/1pp2rbK/3N1Nr1/k2p3r/P3PB2/1PqQn1q1/1N2PQQ1/5B1n w - - 0 1 illegal: No proof kernel
1qk3bQ/pNBq1P2/4B3/b2pqp2/NRK2b1P/P3P3/n1B2n1R/Q1r3Q1 w - - 0 1 illegal: No possible last move, all moves rejected
1q2Qn2/q3p2p/k2N1NQ1/P3P2n/RB2RR2/nb1p3r/rK1P2qP/B3N3 w - - 0 3 illegal: No possible last move
2BN1N1R/B1n3kp/5pr1/Pr1n2Pr/5Pr1/Pq3NQQ/pK1b3r/3RB3 w - - 0 1 illegal: No possible last move, all moves rejected
N2Br2R/B3bk1p/BQP1nnRP/1PN1nKQ1/r2r1p1P/q1R5/5p2/n7 w - - 0 1 legal: proof: d4 b5 h4 c5 dxc5 e5 a4 Bb7 f4 exf4 axb5 Bd5 Qd3 Be6 Qd1 Bh3 gxh3 Qe7 Be3 Qf6 Bc1 Qd8 Kd2 f5 Kd3 g5 c4 a5 b4 d5 e4 d4 b6 a4 c6 f3 e5 a3 h5 g4 h6 g3 b7 a2 c7 g2 c8R f2 h4 Bc5 e6 Na6 b8B Be7 c5 Ra7 c6 Kf8 Nh3 g1R Qh5 Rb7 Qg5 Rd7 Nc3 Rg2 Nb5 Bc5 e7+ Ke8 Nc7+ Kf7 Ba7 Rd5 Rg1 Nf6 Na8 Nc7 Nf4 Qf8 Ne6 Rg4 Rb8 Bd6 Nc5 Ne6 Ba3 Rg8 Rc1 a1N Rc3 Re4 Bc1 f4 Be3 Rh8 Bb6 Rg8 Bd8 Rh8 Qe5 Rg8 Rg6 Rh8 Qg5 Rg8 Ke2 d3+ Kf3 d2 Ba6 d1N b5 Nb2 Rc8 Nc4 Rb8 Nh5 Kg4 Ne5+ Kf5 Ra4 Rc8 Rdd4 Rb8 Rg7 Rc8 Nf6 e8Q+ Kg8 Qd7 Be7 Qb7 Kf7 Qb6 Rg8 Bc7 Qd8 Rb8 Qd6 Rc8 Rg7 Rh8 Rg8 Bd8 Re8 Nd3 Nc7 Qa5 Rdb4 Ba7 Rd4 Qb6 Qa3 Nc5 Ne6
B1b1B1k1/2P2n2/3ppR2/P1QnQ2p/r2PNn1B/PK5b/1N5q/b2NR1b1 w - - 0 1 illegal: No proof kernel
rq3RN1/P4nNn/3Qp3/3Q2pB/1nRpK1b1/B3r1QP/4PPn1/1Nrk4 w - - 0 1 illegal: No proof kernel
3r2b1/3pq2B/K2P3n/1p3N1P/1RQN1rk1/qp2RN2/1n1r1PPB/rB3Q2 w - - 0 1 illegal: No proof kernel
2k1Kb2/1N5P/3pq1QQ/1n1P4/P1B2QpN/n2r1Br1/qpR4P/1rR1B2r w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 b4 Qb3 Ba6 Qd1 a4 b3 Bb5 cxb5 axb3 Kf2 g5 Kg3 c5 Kg4 f6 Kf5 g4 Kg6 f5 e4 b2 d4 b3 a4 f4 e6 c4 e5 c3 b6 f3 b7 c2 e7 f2 h6 Na6 b8Q Nf6 h7 Nd5 Nd2 b1R Nc4 b2 Qd2 Ndc7 Nf3 Bh6 Nh4 Bg7 Qh6 Qc8 Bd2 c1R Be1 Nb4 Na5 Nb5 Bc4 f1Q Nb7 Nc2 Rg1 Rd1 Rg2 Nca3 Rc2 Rf8 d5 Rf3 Be2 Rb3 Bf3 Bf8 Qd6 Rdc1 Qb4 d6 Qbf4 Kd7 Kf7 Qfc4 e8Q+ Kc7 e6 Rb8 e7 Rc3 Qd4 Qa2 Qdf4 Bg7 Qg8 Bf8 e8B Rd1 Bc6 Rcd3 Qgg6 Rdc1 Nc5 Rb6 Nb7 Qf5+ Ke8 Kc8 Bg3 Rh1 Be1 Nc3 Bb5 Qf6 Ba6 Rb3 Bc4 Ncb5 Be2 Rg3 Bd1 Rbd3 Bf3 Rbd1 Rac1 Qf5 Rc3 Qf6 R1c2 Rb1 Rc1 Qf5 R3c2 Qe6+
Q3q3/R1b2knB/3Q3P/1qRPp3/q4Bp1/p3Pr1r/2N1PK2/n1qR1BN1 w - - 0 1 illegal: No proof kernel
1RqqbN2/4kP1r/2P2p2/np2rK2/1RB1rpQB/1Pn1N3/1P1B3Q/1r3Q2 w - - 0 1 illegal: No proof kernel
Qb1Brr1N/2Rp1K2/p2R1bp1/QN1PPPP1/1n1b2r1/nB6/4kb2/3N3B w - - 0 2 illegal: No proof kernel
1r2B1Q1/Bn1nPrR1/Q2bN2P/4p3/2r3p1/1k2B1PN/1r3pP1/K1RbnQ2 w - - 0 1 illegal: No proof kernel
7k/4q2p/3RN1P1/N1rR4/b2nK3/NrPQrppq/5QPP/BB3rqB w - - 0 1 illegal: Other
3Q4/N1K1RB1P/bN1bPpQ1/6qq/qp1R1bpQ/7q/1P2r1P1/kNr3B1 w - - 0 1 illegal: No possible last move, all moves rejected
brn5/qB1Q4/1p1N2Pk/P7/2pp2B1/QQPp2bN/B1P2Rn1/1r2R1rK w - - 0 1 illegal: No possible last move, all moves rejected
1nr2Rb1/rQ2KPN1/2p1PpQ1/2bnrPNP/qp1BpR1B/R7/B6k/8 w - - 0 1 illegal: No possible last move
7k/b2r1p1N/1q3rP1/R2N2b1/pp1P1n1B/1K3n1P/PnB3p1/QRN3QQ w - - 0 1 illegal: No possible last move, all moves rejected
K4Nr1/2P3R1/R2B4/1npQ3p/PQPpPbq1/r6p/N1n1b2b/RN1k3B w - - 0 1 illegal: No proof kernel
2R1r2n/kp2PPb1/n1P3BR/2Pp1NN1/p1Q2Qb1/Q1Bp4/r1q5/1nKN4 w - - 0 1 illegal: No proof kernel
1r6/p6N/kN2B1Qp/rR1P1P1P/3nqpbB/2bnP3/2K1QpB1/2R1rQ2 w - - 0 1 illegal: No proof kernel
1q2Q1Q1/bq3RNN/2r1pNp1/1rP2nP1/2p3B1/KP2p3/2Rn3P/bkB3B1 w - - 0 1 illegal: No proof kernel
1QB1R1qr/2N2Q1q/2n1pp2/RNp2B1P/2Kn1Pb1/b3PP2/1B1Np3/5rk1 w - - 0 1 illegal: No proof kernel
Q2nbr2/r1bQp1p1/qR1p3q/BP1R1pN1/Kn3B1P/4P3/NB1NP3/4k3 w - - 0 1 illegal: No proof kernel forced: wxDB
KbRR2N1/n2PBppp/1NB5/nr1N2pP/3B1qkq/b3r3/1P4P1/1Q3Q2 w - - 0 1 illegal: Other
qK1n2QN/Ppp1n3/Ppp3Q1/2rbR1b1/1kNr4/3P2B1/Q1P5/1q1N1BR1 w - - 0 1 illegal: Other
7Q/k1r1p1NQ/2pR3p/1B1P1PbP/1B1PN1bp/3r1qNn/5b1r/1R1K2R1 w - - 0 1 illegal: No possible last move
1Qr2k2/3K1qn1/pP1pPb1r/n2p2P1/R1Q2N2/2RRQ3/P1B1r1np/2B1N3 w - - 0 1 legal: proof: d4 g5 f4 b5 fxg5 b4 d5 b3 cxb3 e6 b4 exd5 b5 Ba3 Qd2 Bc5 Qd1 Bf8 g4 Be7 h4 Ba6 b6 Bd3 h5 Bg6 hxg6 Bf8 Kd2 h5 Kc3 f5 Kd4 a6 Ke5 c6 b4 f4 e4 h4 g7 f3 b5 h3 b7 f2 g6 h2 b6 Rh7 Qe1 Ba3 Ne2 Bc5 Nf4 Nf6 Na3 Be7 Bd3 f1N Bc2 Rh6 Qe3 Nh5 g5 Ra7 Rg1 Bf6+ Kd6 Qe7+ Kc7 Qf8 g8R Ng7 e5 d6 e6 c5 Rg4 c4 Rb1 c3 Rb3 Ra8 Rh8 Nh5 g7 Nc6 g8Q Ng7 b8Q+ Ke7 Rg3 Qf7 Qgc8 Na5 Rb4 Be5 Ra4 Bf6 Qd4 Ne3 Rd8 Ng4 Rd3 Ne3 Rh8 Ng2 Qe3 Rg6 Rh3 Rh6 Qbb7 Rb8 Qc6 Ra8 Qc4 Rb8 Qb7 Rg8 Qa7 Kf8+ Kc8 Rgh8 Qb8 Rg8 Nb1 Rgh8 Nd2 Rg8 Nf3 Rgh8 Bb1 c2 Ne1 Rg8 Ba3 c1R Bc2 Rd1 Bc1 Rd2 Rg3 Re2 Rf3 Ke7+ Kc7 Re8 Rc3 Qh5 Rg3 Kf8 Kd7 Qg6 Qg1 Qf5 Rgd3 Rc8 Qf2 Qg6 Qe3 Qf7+
4q3/2Q1qNQr/BNp3P1/1Q4p1/1bPR3p/2b2PKP/1pRnR3/B2kr2q w - - 0 2 legal: proof: e4 d5 exd5 a5 f4 g5 b4 axb4 f5 Bd7 Ne2 Bc6 Ng1 Bb5 Nh3 Nd7 Qh5 Bd3 Qh4 Ne5 Ng1 Be2 Qf2 Bf3 Qe2 Ng6 fxg6 f5 Qd1 f4 Kf2 Be4 Ke2 f3+ Ke3 f2 Ke2 Bf3+ gxf3 Rb8 Bg2 Rc8 Bf1 Ra8 a4 Kd7 d4 Kd6 a5 e5 a6 b5 a7 h5 h3 c6 Ra2 e4 Rh2 b3 Qd3 e3 Na3 b2 Nc4+ Kc7 d6+ Kd7 d5 b1Q Bb2 b4 Ba1 b3 c3 Qc1 Rc2 b2 Qd4 Rh7 Qg7+ Qe7 Nb6+ Ke8 Rg2 Nf6 d7+ Kd8 Rh2 Kc7 d8R Ne4 d6+ Kb7 d7 Ka6 Rg2 Kb5 Rh2 Rb8 a8Q Nd2 Qb7 Qb1 Rg2 Qa2 Qc7 Qaf7 Qb7 Kc5 Qa6 Qfe8 Qb5+ Kd6 Rc8 Rb7 d8Q+ Rd7 Qc7+ Ke6 Qa4 Kf5 Rd8 Rd6 Qb4 Re6 Rd4 Re4 Qb5+ Re5 Kd3 e2 Rh2 e1B Ne2 Q7f7 Nf4 Bb4 Be2 f1Q Ne6 Qh1 Nd8 Qff8 Nf7 Qfe7 Rd6 Kf4 Rd4+ Kg3 Bf1 Qd6 Rf2 Qde7 Re2 Qb8 Rf2 Ne4 Ke3 Qbe8 c4 Bec3 Bd3 Nd2+ Be4 Nb3 Ke2 Kf4 Rg2 Nd2 Kf2 Qb1 Rh2 Qd1 Kg2 Ke3 Bf5 Ke2 Bc8 Qh1+ Kg3+ Kd1 Ba6 Re1 Re2 h4+
5r2/KqP4R/1rN2k2/2pBn1p1/2PNR1p1/2n2p1q/2PPb2Q/1n1RBB1Q w - - 0 1 illegal: No proof kernel
1k1nqr1R/pP4rQ/P4QQ1/1B5b/p3rN2/1P2p1KP/6pB/1RN1bN1q w - - 0 1 illegal: No proof kernel
1N2BR2/1R5p/1P3r2/pNppqRBP/N1P3b1/bn1Pr2k/1qQQ2b1/3K4 w - - 1 3 legal: proof: f4 e5 a4 b5 axb5 f5 g4 Bd6 g5 Nc6 e3 Bf8 e4 Nf6 exf5 exf4 gxf6 Ne7 Bc4 Ng8 Be2 Bb7 Bf1 Bc8 h4 Kf7 b4 a5 b6 d5 h5 g5 b5 f3 b7 g4 b8N g3 Na3 g2 Rb1 Nh6 Ne2 g1Q Nc3 Qg7 Na4 Qd6 c4 c6 d3 Ra6 Qd2 f2+ Kd1 Qe5 Bh3 f1B Qc2 Be7 Bg5 Bg2 Rf1 Re8 Rf4 Bb4 Bg4 c5 Rf3 Kf8 f7 Rf6 Rf4 Ke7 f8R Qb2 Qd2 Kd6 Bh3 Ke5 Rf3 Rg6 f6 Bg4 f7 Nf5 Qc2 Nd4 Qd2 Bc8 Bd7 Nb3 Rf1 Re7 Be8 Rf6 Qc2 Bch3 Rf5+ Ke6 Rg8 Qe5 f8Q Qh8 Qh6 Bg4+ Rf3 Qb2 Rf8 Ke5 b6 Ree6 Nb5 Ba3 Rf7 Qg7 Rb7 Re7 Ke2 Ree6 Rf1 Qe7 Kd1 Qc7 Bf4+ Kf5 Bg5+ Qf4 Rf2 Re3 Rf1 B4h3 R1f2 Kg4 Rf1 Qfe5 Rf5 Rd6 Rf8 Rf6 Rf5 Kg3 Rf2 Bd7 Rf5 Kh3 Bh4 Rf3 Qhd2 Be6 Bg5 Bc8 Rf4 Bg4 Rf5 Re3+
1k2n1B1/np2NQ1P/2R1pp1P/1P2q3/3pR1b1/N2PrB1q/2K4b/QqBN4 w - - 1 2 illegal: No proof kernel
N7/KB2pkP1/p1P1r1rB/4nbpQ/P1p5/3B4/1Pq1RrQ1/1QNnR1q1 w - - 0 1 illegal: No proof kernel
1q1qR3/K1p2p2/QN1pBb2/1RrNRn2/p1P4B/3P2Bb/1P1Q2Pn/k2n4 w - - 1 2 legal: proof: f4 b5 e4 a5 a4 g5 axb5 Na6 h4 Bb7 Qg4 e5 hxg5 exf4 e5 Ke7 e6 d6 Qh5 Qd7 Qe2 Rd8 Kf2 Qe8 Qe1 Rd7 Qd1 Qd8 exd7 Ke6 Qh5 Qe8 Qd1 Qe7 d8B Kd5 b6 Kd4 g6 h5 g7 a4 Nh3 f3 Nc3 h4 Bc4 Qe5 Nd5 Qf5 Re1 Nh6 g8Q Qc8 Nhf4 h3 Re8 h2 Bh4 h1Q c3+ Kc5 Ke3 f2 d3 f1N+ Ke4 Be7 Qd2 Nf5 Qg5 Bc6 b7 Rh5 b8R Bd7 Nb6 Nb4 Be6 Bf6 c4 Nh2 Nfd5 Nc2 Bg3 Nce3 Qa5+ Bb5 Qa6 Nd1 Bd2 Bc6 Bde1 Bd7 Qd2 Qd8 Bh4 Bc8 Beg3 Qf1 Nc3 Kb4 Kd5 Kb3 Kc6 Qf3+ Ncd5 Qg4 Rc1 Ka2 Rb1 Bd7+ Kb7 Qg8 Rc1 Qf8 Rc2 Ka1 Ka7 Qc8 Qh6 Qe7 Re2 Qed8 Qd2 Ne7 Nc3 Rc5 Re5 Nf5 Ncd5 Bc6 Ne7 Bf3 Ned5 Bg4 Na8 Bh3 Rb5 Qdd7 Nab6 Qe7 Nb4 Qed8 N4d5 Qb8#
KRn3Nb/1P3qk1/Qp1Q2pr/3P1q1p/5N1B/R1n4P/pP3NQr/5Bq1 w - - 1 2 legal: proof: d4 d5 c4 e5 dxe5 f5 cxd5 b6 a4 Qd7 g4 fxg4 a5 Qd6 a6 Bb7 axb7 Qd8 Kd2 Kf7 Kd3 c5 Kc4 a5 Kb5 h6 e4 c4 f4 c3 e6+ Kg6 e5 a4 f5+ Kh7 e7 a3 e8Q c2 f6 g6 f7 g3 e6 g2 e7 Ra6 Ne2 g1Q Nbc3 Qg4 Qd2 Ra4 Nf4 Qg1 Ne4 Nd7 Nf2 Qc7 Qa8 Kg7 Qa6 Nc5 Qe2 Ne4 e8N+ Kh7 Ra2 Ne7 Nf6+ Kg7 Ng8 Nc8 Qg4 Be7 Qg2 Bf6 Bd2 c1Q Be1 Q1c2 f8Q+ Kh7 Qd8 Kg7 Qd6 Qf7 Ra1 Nc3+ Kc6 Be7 Kc7 Qcf5 Kb8 Bf6 Ka8 h5 h3 Re4 Rc1 Rh7 Rc2 Re8 Re2 Rf8 Re8 Rh6 Rd8 Ne7 Rb8 Nc8 Ne4 Re8 Bh4 a2 Nf2 Qh2 Rg1 Re2 Qe4 Be5 Rg3 Qg1 Rf3 Nb5 Ra3 Nc3 Ng4 Rh2 Nf2 Kh7 Qh1 Bh8 Qg2 Kg7
1NKbr1n1/QQBBp1k1/1p1P2N1/2P5/R2PP2r/4BrRb/N2pp1n1/6n1 w - - 0 1 illegal: No proof kernel
N2r4/Q1Np1bR1/2PpBpP1/B1r2PqQ/2Pn3p/RN4k1/1r2n3/1Q1r2K1 w - - 0 1 illegal: No possible last move
4rr2/p4NRQ/P3pk1p/1QPQR2n/r3P3/N2qB1Pr/1p1K3R/1b1B2n1 w - - 1 2 legal: proof: c4 d5 cxd5 f5 b4 c5 bxc5 f4 g3 fxg3 Nh3 g5 Qb3 g2 Qb2 g1R Qg7 g4 Ng5 g3 Nf3 g2 Qb2 Bg7 Qb3 Be5 Qd1 Bg3 hxg3 Be6 Nd4 Bg4 Nf3 Bc8 d4 Kf7 a4 b5 d6 e6 d5 h6 d7 b4 d6 b3 a5 b2 a6 Nf6 Qb3 Rg8 Qb5 Kg7 Ng5 Qc7 d8R Nd5 f4 Bb7 f5 Nc6 d7 Nb8 f6+ Kg6 f7 Nc6 f8Q Nd4 Qe7 Rf8 Qh7+ Kf6 e4 Ne2 Be3 Ndf4 Kd2 Bd5 Rh5 Qd6 Rc8 Rh1 Rc7 g1R d8Q+ Qe7 Qd6 Qd8 Rg7 Rh3 Nf7 Ba2 Re5 Nh5 Bg2 Rc1 Bf3 Rc4 Na3 Ra4 Rh1 Bb1 Rh2 Ng1 Bd1 Qd7 Qd4 Rae8 Qdd3 Qd5 Qd4 Qc4 Qd5 Qd3+
1KRq1QQ1/2Nn3N/1p1r2qB/2Qp1bq1/p1q5/1R1p3P/PP1P3b/1k2B2B w - - 2 3 illegal: No proof kernel forced: bxDB
1K2R3/7N/PPb2b1b/1p3r1r/1rNn2pQ/NP2p2B/kB1Qp1Pr/5R1Q w - - 0 1 illegal: No proof kernel
5R1r/n1PPp2Q/QnpK4/2Bp1R2/B1p1N1bP/2P1rQ2/2q2p1n/kN5B w - - 0 1 illegal: Other
2QR1nQ1/k5p1/2pB3p/2N1nPP1/q1bBNNb1/Q2pRpb1/r3PK1P/8 w - - 0 2 illegal: No possible last move, all moves rejected
4N1k1/nRQ2N1p/3P2b1/4P3/1pKr2Br/b1B2R1p/QPp1pr1P/n2Q1R2 w - - 1 2 illegal: No proof kernel
3b1Q2/1p2Rq2/b2p2kP/p1RQBn2/b2K2pp/1N1P1rP1/1PN3N1/1B2qR2 w - - 0 3 illegal: No proof kernel
4NB2/4p3/QP5p/1p1p1K2/p1B3R1/bQnNP2q/rPP2R1q/k1rq2NQ w - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 h4 Bb7 a4 Be4 a5 Na6 h5 Bg6 hxg6 Nc7 Ra3 Nd5 Ra1 Nb6 axb6 Rb8 Bg2 Rc8 Bf1 Ra8 Kd2 f5 Kd3 d5 g7 Kd7 g6 Ke6 g5 Ke5 Bd2 a5 Rh4 f4 Nc3 f3 Ne4 f2 Rg4 Qd6 Nc5 Nf6 g8Q Bg7 Qc8 Ne4 Qa6 Nc3 Qb1 Bf6 g7 h6 g6 Rhf8 g8Q Bh4 g7 Bg3 Bg5 Rf4 Kd2 d3 Ke3 d2 Bf6+ Kf5 Be5 d1Q Nd3 Ra4 Qh8 Ra2 g8N a4 Kd4 Rf8 Bg7 Qc7 Qc1 Bd6 Nf6 Ba3 Ne8 Qh2 Ke3 Rf6 Bf8 Rg6 Qd4 Rf6 Qb4 Rf7 Bh3 f1Q Qb3 Qfg2 Kd4 Qf3 Bf1 Qfh3 Rg2 Rf6 Rf2+ Kg4 e3 Rf3 Rd2 Kg3 Be2 Rf1 Ke5 Re1 Nc5 Rf1 Bc4 Re1 Rb1 Rf1 Rd4 Kf2+ Rf4+ Ke1 Ra1 Qf2 Rg4 Qfh4 Qb1 Kd2 Nd3 Qh2+ Ke6 Re1 Kf5 Q4h3 Nf2 Qe2 Nd3 Rc1 Qb4 Qe1 Qb3 Qd1 Nd6 Qde2 Ne1 Rd1 Ne8 Qeg2 Ne2 Qgh1 Nd3 Q1f3+ Nef4 Rh1 Qg1 Qfe2 Rf1 Qe1 Rf2+ Kd1 Ne5 Kc1 Ne2+ Kb1 Nd3 Ka1 Qg2 Rf1 Ng1 Qd2 Qf3 Rc1 Qh1 Qd1
1k2K1R1/r1p1r1b1/P7/1N2Qp1P/1R1B2p1/q4PP1/pQ3Qrp/rb2RB1N w - - 0 1 illegal: No proof kernel
k2rR2K/p1b2pQP/nB1p3B/1pnPp1pR/P1BP3q/2N2Q2/N4N2/3r4 w - - 1 2 legal: proof: d4 h5 Kd2 c5 b4 b6 bxc5 Qc7 g4 Qg3 gxh5 Qxf2 Kd3 Ba6+ Kc3 Bd3 exd3 Qf6 Bh3 Qh4 Bf1 Qf2 h4 Kd8 a4 Kc8 d5 Kb7 c6+ Kc7 h6 b5 h5 e6 h7 g6 h6 Qf5 Kd4 Kc8 c4 Nf6 c5 Qh5 c7 Kb7 c8N Qf5 c6+ Kc7 Nd6 Kb6 c7 Qg4+ Ke5 Ne8 c8Q Qh4 Qc3 Qd8 Rh5 Be7 Nh3 Bf8 Qf3 Nf6 Nf2 Be7 Nde4 Rg8 h8B Kb7 h7 Ne8 Bh6 Nd6 Ra2 Rg7 Re2 Na6 Qa1 Rc8 Nbc3 Ka8 Na2 Nb7 Nec3 Nbc5 Re3 Rg8 Bf6 Rh8 d4 Rc6 Bc4 Re8 Qg1 d6+ Kf4 Rc8 Kg5 Rb8 Bf8 Rc8 Kh6 Rc6 Kg7 e5 Kh8 Rc8 Bh4 Rc6 Re2 Bg5 Rc2 Qe7 Rc1 Rd8 Qgg3 Bd2 Qg5 Rcc8 Qgf6 Rc6 Qg7 Qg5 Rc2 Qg4 Bg5 Qh4 Bh6 g5 Rc1 Rd7 Be7 Rc8+ Bd8 Rdc7 Ncd1 Ba5 Ndc3 Rd7 Rc2 Rc6 Rc1 Bc7 Rc2 Bb8 Ba5 Bc7 Bb6 Rd8+ Qg8 Kb8 Nb1 Nb7 Bb3 Re8 Nb4 Ka8 Na2 Bb8 Rc1 Rc3 Rc2 Rd3 Rc8 Rd2 Nbc3 Nbc5 Bc4 Rd1 Qf8 Rd8 Qg8 Rd7 Re8 Rd8 Qg7 Bc7
3K4/p2p4/P2pRbn1/4pR2/RBBB3p/1Pn2P1r/2p1PQ1r/Nk2bNQ1 w - - 0 2 illegal: Other
7B/pnk3P1/pr3Q1N/2B2p1P/2Q1pbp1/pn1QP1R1/2N1pPB1/2RK3b w - - 0 1 illegal: Other
2nbnr2/B3R2B/Pbkq4/rRp3QB/3n2pr/q2N2P1/1PP1b3/1K1NQQ2 w - - 0 1 illegal: No proof kernel
qQ2q1R1/NPrnbb1r/r1p2nB1/Bp1R2Nq/1P6/3QKnP1/1kP1R3/4B3 w - - 0 1 illegal: No proof kernel
k1n1q1r1/4P3/2rRN1pB/2KpPBq1/2bRRnqN/1Q1P3Q/2b3P1/b4nB1 w - - 0 1 illegal: No proof kernel
B1b5/b2knp1Q/r2r2r1/2q1b1Rp/Rnq5/1BB1q3/1NPP1P1P/N1K1Q1R1 w - - 0 1 illegal: No proof kernel
3bNkb1/r2qprqp/2R4R/2P2PB1/1N1n4/rN2Kq1Q/1b2P1QP/1R1B3n w - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 gxf5 Bb7 Ra5 Ba6 Ra1 Bc8 f6 d5 Kd2 a5 c4 g5 b4 g4 f4 d3 b6 d4 b5 a4 f5 a3 b7 g3 b6 g2 Nc3 a2 Ne4 Nh6 Qb3 Ng4 Nf3 g1B Rb1 a1Q Bg2 Nc6 b8N Qd5 b7 Ra7 Na6 Bg7 b8Q O-O Q8b7 Be6 Nd6 Nf2 Nb4 Bh8 f7+ Kg7 Ke1 d2+ Kf1 d3 Nd4 Qb2 Be4 d1Q+ Kg2 d2 Qh3 Qf1+ Kf3 Qb5 Nb3 d1R Ra1 Qd5 Ra6 Qd3+ Be3 Ra1 Kf4 Qd5 Bc2 Ra3 Qa8 Qb5 Kf3 Qb7 Bg5 Qd7 Kf4 Rc8 f8R Bg8 Rf6 Rf8 Re6 Rf7 Ne8+ Kf8 Rh6 Bd4 Kf3 Bb6 c5 Qg7 Kf4 Bd8 Rb6 Nd3+ Ke4 Bd4 Qb7 Bc3 Ke3 Nd4 Qbg2 Bb2 Rbc6 Nf2 Rg1 Qd1 Rf1 Nh1 Rg1 Qe1 Rf1 Qh4 Rb1 Qh5 Bd1 Qf3+
1Qn3k1/B2bR3/1Pbnr1rp/P4br1/2B3pN/b2q1bPP/2Q5/RRNN1K2 w - - 0 1 illegal: No proof kernel
4n3/2r1p1Nk/N1Q1qR1r/PN2Bbp1/1Q1P2n1/3nr1P1/nBBnP1R1/K5b1 w - - 0 1 illegal: No proof kernel
Q1R1BB2/N1Q1nppP/q3nbP1/2rR1b2/rnn2RN1/1K4B1/1b2rPP1/k7 w - - 0 1 illegal: No proof kernel
r1Qn4/bR3B2/2P2q1k/1bPb1p1p/6nP/q1N1RP1r/1rQBB3/1NQb2K1 w - - 0 1 illegal: No proof kernel
1R4rq/p6B/N4kbB/PPp2r2/nPPR2Kr/bb3NQ1/1Rb1BQ2/2q1n3 w - - 0 1 illegal: No proof kernel
q6n/2bNp1p1/1RrBr2Q/2BBPb2/Q1R1K1P1/4QPNn/q1P3k1/3q1qn1 w - - 0 1 illegal: No possible last move, all moves rejected
Q1N2QBr/4b3/br2pKR1/N1q3Pk/3BB1Np/1bq1b2P/P2nPn2/R5n1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 Kf2 c5 Kg3 h5 Kf4 b5 Ke5 f5 d4 Kf7 g4 Kg6 d6 b3 d7 b2 d5 e6 h3 f4 d6 c4 Nf3 c3 Nbd2 b1B Qb3 c2 Ne1 f3 Rh2 b4 Rh1 h4 Bg2 f2 Qg3 f1Q Qc3 b3 Ne4 b2 Nd3 Qb6 d8N Nh6 d7 Qe1 Nb7 Ra6 Be3 c1B d8Q Bc2 Na5 b1N Qa3 Qc3+ Bd4 Be3 Rg1 Nd2 Ndf2 Bb3 Nd6 Qbc5+ Bd5 Be7 Qf8 Rb6 Qa4 Ba6 Nc8 Nf5 Qc6 Ng3 Qa8 Nh1 Rg2 Kh7 Rgg1 Bd6+ Kf6 Nc6 Rg2 Ne5 Rg3 Nef3 Bc6 Rg8 g6+ Kh8 g7+ Kh7 Be4+ Kh6 g5+ Kh5 Ng4 Ng1 Rf3 Rh8 g8B Bbc4 Kg7 Bd5 Rf6 Nf2 Rg6 Bb3 Kf6 Be7+
6N1/4N1BR/QP3p1n/3pRBrN/qkPqb3/2bP1PrQ/n7/K1R1qqb1 w - - 0 1 illegal: No possible last move, all moves rejected
2Qn2nK/3r2Bp/N1BN2n1/1p2Q2P/RQq3bP/3PR1bq/1P5R/1n1krr2 w - - 0 1 illegal: No proof kernel
1B2r1r1/1r1NQ2P/p1p3Q1/2P1rN2/nRBq1b1q/2QbbK1k/P6P/1B4Rn w - - 0 1 illegal: No proof kernel
2QqNQR1/P7/B1P2pn1/B1bR3B/qr2p3/1k1b2R1/1bN1PPK1/2n1br1q w - - 0 1 legal: proof: d4 c5 dxc5 h5 b4 a5 g4 hxg4 bxa5 Rh3 Bd2 Rh5 Bc1 Rh8 h4 b5 c4 g5 a4 d5 h5 Kd7 a6 Kc6 a7 e5 h6 d4 a5 b4 h7 b3 a6 f6 Qc2 e4 Qd1 d3 Ra3 g3 Rh3 g2 Rh2 g4 Nf3 g1B Rh3 g3 Ra2 b2 Nh4 g2 Ra5 Bh2 Nf3 g1B Bg2 d2+ Kf1 Bhd6 Nc3 b1Q Nb5 Nd7 Bh1 Rb8 a8R Ne7 a7 Bgh2 Nc7 Ng6 Kg2 Ba6 Ne1 Bhe5 Ne8 Rb4 Qc2 d1Q Bd2 Bb2 Rg3 Nde5 Rb5 Rg8 h8Q Nd3 Qh6 Bfe7 Qf8 Nc1 Qc3 Qa4 Nc2 Bf4 Be1 Bd2 Rc8+ Kd7 c6+ Ke6 c5 Kd5 c7 Qba1 c6+ Bc5 Qe5+ Kc4 Qf5 Qb1 Ra8 Bdc3 c8B Kb3 Ra5 Bb5 Ba6 Bd3 Qc8 Qba1 Kf1 Rh8 Bf3 Rh1+ Kg2 Rf1 Bh5 Qb1 Bd2 Qba1 Bf4 Be1 Bc7 Qb5 Rb8 Qaa4 Ra8 Qb8 Rb5 Qb7 Ba5 Qh7 Rab8 Bcd4 Rd5 Bc5 Rb7 Qh6 Rg7 Qf4 Rg8 Qh6 Bg4 Qh4 Bh5 Qh1#
5q2/2p2p2/2qNr2R/BQn3B1/1RBn1PbR/1PPK1Pn1/1b3NrQ/1n1b1k2 w - - 0 1 illegal: No proof kernel
K6R/1b1k1Nn1/Q1bqp3/Qp3b1q/1BP1n3/1B2NPQ1/BPrnP3/R1b4r w - - 0 1 illegal: No possible last move, all moves rejected
2bN3b/1QRR4/4n1QB/r3k1n1/Nb2Brpr/2p1KpPQ/2PPP3/1n2Rq2 w - - 0 1 illegal: No proof kernel
3b2B1/2b1P3/1p5B/2qpKQn1/Npr3P1/QPB3Rb/rR1P1n1N/krn4N w - - 0 1 illegal: No possible last move, all moves rejected
2Q3r1/bNnQP2p/n1qB3P/3b1B2/N1Bk2P1/2r2pRr/K1RqpP2/3n2R1 w - - 0 1 illegal: No proof kernel
1q3rBB/b2R1b1n/4k3/R1n1P1r1/b5pp/1N1pP1P1/nQ1PQ2q/R1N1BK2 w - - 0 1 illegal: No proof kernel
bNB1R3/rnk1r3/1r1p3P/b1N1nq2/QRpP1p1q/1BPQN1B1/2P5/1q3K2 w - - 0 1 illegal: No proof kernel
2Q1B3/3q2N1/1QN1P3/qpb1b1Pb/r6p/BPQ1R1pP/R1q2r2/1K1n1knB w - - 0 1 illegal: No proof kernel
NR1QR3/p1Q1Pb1q/P1K4r/1pp1P3/1N1BBn2/N1P4n/qkrbq1R1/6b1 w - - 0 1 illegal: No proof kernel
6qQ/1k2nN1R/b1q2RpQ/K1B1Pnrp/p1n3N1/P1Q4P/1bb1B1BP/3r4 w - - 0 1 illegal: No proof kernel
B2b4/B3PP2/Qp2b1n1/Qr1p1pQ1/1R2rPNq/K2R3n/q2P2Nn/3Rq2k w - - 0 1 illegal: No proof kernel
B1Qq2b1/nBp1nrrR/b6b/rNRP4/Q1Rp3k/NKP2p2/q2P1P2/1N6 w - - 1 3 illegal: No proof kernel
1BR5/bn1Br1pb/Q1p3P1/R3PNn1/2N1q1kP/1qRp1r2/1qP1b3/1Q1QK3 w - - 0 1 illegal: No proof kernel
4nQ1B/2qKB1P1/1p1Q2q1/N5Qp/1P2r3/N2BqRp1/1R1nnbPP/r3b2k w - - 1 3 illegal: No proof kernel
BN5b/2R2p2/QP3Qn1/npP1R3/R2K1Pn1/1kpqB2B/1PN1b3/1qrqr3 w - - 0 1 illegal: No possible last move, all moves rejected
1rqr3k/3p2RP/7p/3r2RP/Q1Bb2KN/1bB2Pr1/1pBP2Q1/1Nr2nRn w - - 0 1 illegal: No proof kernel
k5bn/p2N1NPp/PQ2r2P/n1B2B1K/QP1bb1nR/Q4q1p/3B3r/4R2b w - - 0 1 illegal: No proof kernel
3N4/1bb1p1R1/3r1Qrp/3bKN1k/1R2q2P/1BPQ1rpP/n2n1BP1/1r3B1Q w - - 0 1 illegal: No proof kernel
q7/3NKbBR/NP1pR1r1/B2Prn2/p1p2b2/2P1rnQQ/PR6/1rk1n2B w - - 1 3 legal: proof: g4 h5 gxh5 b5 e4 f5 exf5 b4 c3 b3 Qc2 bxc2 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 Kf4 b4 a5 h4 g5 d4+ Ke4 f4 c6 b5 g4 h6 g3 b6 g2 f6 a4 f5 Ba6 h5 Bd3 h7 Nh6 f7 Ng4 f6 Ra7 d5 Be2 h6 Kd3 Nd2 Rg8 h8B Nh2 h7 Rg6 Bg7 Nf3 Ba3 c1R h8Q Kc2 Ne4 Rb1 Bb4 Kc1 Qh3 Rb7 Ba5 e5+ Nd6 Ne1 Nf3 g1N Bg2 e4 Ne5 e3 Bf3 Be7 f8R Bd3 f7 e2 Rh2 Bg5 Nb5 Bf4 Bh1 Ngf3 Nc7 Bf5 Re8 Be6 Kd6 c5 f8Q c4 Qg8 Nc6 Rf2 Bf7+ Re6 Ncd4 Na6 Qa8 Ke7 d6+ Nd7 Rb8 Qgh7 Rh8 Q7h4 Rh5 Q4g3 Re5 Rh2 Nd3 Rg2 e1R Rb2 R1e3 Qhh4 Kd1 Bg2 Rc1 Rbb1 Kd2 Rb2+ Rc2 Rh1 Nde1 Rh2 Kd1 Rh3 Rc1 Bh1 Rb1 Qhg4 Kc1 Rh7 Qa7 Q4h4 Qa8 Qhh3 Nf5+
1N3N2/1n1bk3/Pbp3Q1/bq2p1rB/3bP2n/p1PQR2R/3N2Pr/2B1KB1n w - - 0 1 illegal: No proof kernel
2bR1Q1r/1Nk2n1p/1p1p4/2bq1b1P/1P1PQ1Bb/r3NP2/2Rn1B2/Q1K3nN w - - 2 3 illegal: No proof kernel
3R1b2/1RRp2b1/Kp1N4/1rP1rnqp/2NPbB2/1kP1NQ1P/6b1/1BQr3n w - - 0 1 illegal: No proof kernel
3b4/pP3p1Q/3KN2r/np1qB3/bP2r3/RBQ2PP1/N6b/NnrRR1bk w - - 0 1 illegal: No proof kernel
5nRr/1pp2Q2/p1Bkn3/1nrB4/PRP3PR/K3NNr1/1P3Br1/1bQ1q1b1 w - - 1 3 legal: proof: e4 f5 exf5 g5 d4 e5 h4 gxh4 dxe5 Bh6 Bb5 Bg7 Bf1 Bf8 Kd2 Ke7 Kc3 h5 Kb4 d5 g4 h3 a4 h4 c4 d4 f4 d3 e6 h2 f6+ Kd6 f7 d2 e7 h3 e8B Ne7 f5 Nd7 f6 Nc5 Ka3 Bf5 Be2 Ne6 Nf3 Ng6 Nc3 Bb1 Bf1 Qe7 Bc6 a6 Bg2 Rd8 Qe1 d1N Nd5 Nc3 Ne3 Rh5 Bd2 Rc5 Qc1 Bg7 Be1 Rh8 f8R Nb5+ Kb4 Bh6 Rg8 Ngf8 f7 Bg7 Kb3 Bd4 Ra3 Qh4 Bf2 Qg3 Rf1 h1R Bd5 Rh2 Rh1 Qh4 Kb4 Qe7 Rb3 Qe8 Bf1 Rg2 Bd3 h2 B3e4 Ng6 f8Q+ Qe7 Qf7 Ngf8 Bc6 Rh3 Bed5 Rhg3 Rg1 h1R Re1 Rh6 Rh1 Rh8 Rh4 Na7 Ka3 Qe8 Rb4 Nb5+ Kb3 Qe7 Rh7 Qh4 Rh6 Qh1 Rh4 Qe1 Nc2 Qe2 Be1 Bf2 Ne3 Bg1 Bf2 Bg6 Ka2 Qe1 Kb3 Bf5 Ka2 Bb1+ Kb3 Na7 Ka3 Nb5+
5B1q/3p1r1p/1n1NbR1P/4K2B/rk1B1Qr1/p1r1nPb1/2bP1Q1P/2R1N2Q w - - 0 1 illegal: No proof kernel
QB3n1b/Qp1Rppb1/2P1B2k/2r1Nb2/3RnP1n/NP1q4/KP3Nr1/R2b4 w - - 0 1 illegal: No proof kernel
1b1R1b1n/NPP1k3/1NB5/2p2r2/b1P2Bq1/1r3p1R/RQQQpPqK/2n3b1 w - - 0 1 illegal: No possible last move
2q1NBb1/N2Np3/3rQb2/2pB2nn/rRQb4/PK1p4/1QPP2qP/Rb3k2 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 Ra5 Nc3 Ra7 Nb1 Ra8 f4 Kf7 f6 Ke6 a3 Kd5 f5 Ke4 f7 g5 f6 d5 h6 b5 h7 c5 Be2 b3 Bb2 d4 Bc1 d3 Nh3 b2 Nf4 b4 Bf1 g4 Ne6 b3 Nc7 g3 Ne8 Bg7 f8N g2 f7 g1B Nd7 Ra4 f8Q Na6 Qf6 Nc7 Qe6+ Be5 Qh5 Nf6 Kd1 Bd4 Qhf7 Kf3 Bg2+ Kf2 Nc3 b1B Bd5 b2 Nb5 Rf8 Qg8 Nh5 h8Q Rf6 Na7 Bb7 Rg1 Qc8 Rg4 Kf1 Re4 Rg6 Qgf7+ Bf6 Rh4 Bc3 Rb4 Ba6 Qhg7 Bc4 Qh8 Rh6 Qfg8 Bca2 Qgg4 Bb3 Qc4 Bcd4 Qg7 B1a2 Qh8 b1Q Qg7 Qb2 Qh8 Qc3 Bb2 Bb1 Kc1 Rg6 Rb7 Qa5 Rb4 Qaa6 Bc3 Qab7 Kb2 Rh6 Qe5 Ne6 Qg8 Ng5 Qge6 Be3 Qb8 Qbc7 Bd4 Qg3 Kc3 Qg2 Qbb6 Bh8 Bg7 Rf6 Kb2 Bf2 Bf8 Bd4+ Qc3 Rh6 Qa6 Bhf6 Qc4 Rg6 Qe5 Rh6 Bf7 Qd8 Qb5 Bd5 Qc4 Qc8 Kb3 Bh8 Qb2 Rd6 Qe4 Bhf6 Qe3 Be4 Bd5 Bh7 Qe6 Bg8
1r1NR1b1/3Q3q/p5Rp/q1P2N2/PR4nP/2rN1p2/nB2PQnK/n2kb2B w - - 0 1 legal: proof: d4 e5 dxe5 g5 f4 gxf4 b4 c5 bxc5 Qc7 Nd2 Qb6 Nb1 Qd8 Kf2 Ke7 g4 Ke6 Kg2 f5 c4 d5 h4 b5 a4 a6 c6 f3+ Kh2 f4 g5 Kf5 e6 Ke4 c7 f2 e7 d4 e8N b4 g6 b3 g7 h6 Ra3 d3 Nh3 b2 Qd2 f3 Ng1 Bb4 Qc3 d2 Nh3 d1N Rb3 Nd7 Rg1 Ngf6 g8R Nc5 Qe1 Rb8 Ng7 Be6 c8Q Qa5 Nf4 Nc3 Nd2+ Ke3 Qd7 b1Q Re8 Qh7 Nd3 Na2 Bb2 Rg8 Bg2 f1N+ Kh1 Rh8 Ne4 Bg8 Ne6 Ng4 Nd8 Bd2 Qg3 Be1 Rb4 Nb3 Nd6+ Kd2 Qf2 Kd1 Nf5 Na1 c5 Nfe3 Rc4 Rb3 Rb4 Ne5 Kh2 Rc3 Bh1 Ng2 Qc8 Ne3 Rg6 Ng2 Qd7 Ng4+ Kg3 Be6 Kh3 Rf8 Kg3 Bg8 Kh3 Rf6 Kg3 Rb6 Kh3 Rb8 Kg3 Nf6 Kh2 Ng4+
rQ4N1/3rB3/Q1Bn3P/KP1Q1Bnp/p4pb1/k1bq1q1R/3N1PrP/5r1R w - - 0 1 illegal: No proof kernel
R5NB/pnBK3b/1Np2b2/1pk1b1r1/4R1r1/PPP1R3/1QnbQP2/1Qq2q2 w - - 2 3 legal: proof: g4 h5 d4 e5 dxe5 f5 gxf5 Qh4 Bh3 Qd8 Bg4 hxg4 Kd2 Ke7 Kc3 g5 Kd4 b5 Kd5 d6 h4 g3 e4 g2 h5 g4 h6 g3 e6 Nc6 f6+ Ke8 e7 Kd7 e8R Nd4 h7 Be7 e5 Nh6 c3 Nhf5 f7 Bf6 f8Q Rg8 h8B Nc2 b3 Rg5 Nh3 g1B Na3 g2 Nc4 Bh2 Re1 g1B Re4 Bf4 a3 Qe7 Qh6 Bd2 Nf4 Bh2 Ng6 Qh7 Qhh5 Qh6 Qhe2 Qh3 Qde1 Qf1 Ne7 Rb8 Re3 Bf4 Ng8 c6+ Ke4 Kc7 e6 B4e5 e7 Rb7 Nb6 d5+ Kf3 d4 Ke4 Bd7 Ra8 Kd6 e8Q d3 Q1d1 Kc5 Qg6 Ncd4 Qc2 Be8 Qb2 Rg7 Qh7 Bg6 Qh1 Bh7 Ra2 Qh3 Qhd1 R7g6 Qdc2 Qf1 Qcb1 Nc2 Ra1 Ng7 Ra2 Ne8 Ra1 Rg3 Kf5 R6g4+ Ke6 Nd6 Kd7 Nb7 Ra2 Rg5 Re4 R3g4 Ra1 Be1 Bf4 d2 Re3 Bd4 Bc7 d1Q Q1a2 Qd2 Rd1 Bfe5 Qab1 Qc1 Re4 Bf6 Rd3 Bd2 Rde3 Bde5
nk1nR2q/2p2bp1/Q1npB2B/NN2Q3/PbNrP3/2n2RPr/1KP5/5q1Q w - - 0 1 illegal: No proof kernel
q1BK1N1n/2pp1P2/N3p2B/1rbr4/4q3/1R2PR1r/1QPP1N1Q/1Brn1k1q w - - 0 1 legal: proof: g4 f5 a4 fxg4 h3 b5 axb5 g3 Ra4 g5 Ra5 g4 Nf3 g2 Ra3 g3 Ng1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 f4 Kf7 b4 Kf6 e3 h5 Ke2 a5 Kd3 a4 Kd4 h4 f5 Kg5 Ke5 a3 b6 a2 b7 h3 b5 Kh4 b6 h2 g5 Bh6 g6 Ra7 g7 Ra6 f6 Qc8 Nf3+ Kh3 Nd4 Qe8 Qe2 Qd8 Bb2 Qe8 Nc3 Nc6+ Kf5 Ne5 b8N Ra3 b7 Nc4 Rb1 a1Q Nd1 Rb3 Ne6 Qa8 Na6 Rb5+ Be5 Rd5 b8Q Nb2 Nf8 Rb5 Rg1 h1Q Nf2+ Kh2 Qb7 Nd1 Rb3 Bf4 Qb6 Rh3 Qd4 Bg5 Qb2 Rd5 Qh5 Bh4 Bc4 Rb5 Re1 g1R Rf1 Kg2 Qh6 Rd5 Bb5 Bg5 Bc6 Bf4 Bb7 Bg5 Qh5 Bh4 Bc8 Nh6+ Ke4 Nf7 Kf5 Nh8 g8B Rb5 Bc4 Bg5 f7 Bf4 Qh6 e6+ Kf6 Qe4 Bc3 Bd6 Be5 Bc5 Bf4 Kh2 Bg5 g2 Qh5 Kg3 Bh6 Kh2 Bd5 Kg3 Qhe5+ Kf3 Qh2 Ke2 Bcb7 Qa8 Bc8 Ba7 Ke7 Bc5+ Ke8 Qd3 Ng4 Qe4 Rf3 Re1 Nf2 g1R Kd8 Kf1 Rc3 Rg5 Ba2 Rd5 Rb3 Nc3 Bb1 Rc1 Qg3 Nd1 Qg2+ Ke2 Qh2 Kf1
QnnN1kq1/2K2ppR/3rn1nr/1B5p/7Q/B3PPPP/1QRb4/N2B1n1n w - - 0 1 legal: proof: c4 b5 d4 e5 dxe5 a5 Qc2 b4 Qd1 Ba6 b3 Bb5 cxb5 a4 Qc2 axb3 Qd2 Bc5 Qd1 Bf8 Kd2 d5 Kd3 c5 a4 b2 f3 d4 Ke4 h6 e3 b3 e6 d3 Ke5 d2 g3 c4 a5 c3 a6 c2 e7 Rh7 Na3 b1N a7 b2 b6 Nc3 b7 b1N Ne2 Nd5 Nd4 Nf4 Be2 Ne6 Nc6 Rh8 Bb2 c1N Qa4 d1N Qh4 Nf2 Nc2 Nd2 Ra2 Nf1 Bd1 Ne2 Ba3 N2f4 Na1 Qc8 Kd6 Ng6 Rc2 Rh7 Rg1 Nh1 Nd8 Rh8 Rgg2 Rh7 Rgd2 h5 h3 Rh6 Rc6 Nf6 Rdc2 Nd5 Ra6 Nc6 b8Q Nb6 Qc7 Rb8 a8Q Rb7 Qcb8 Ra7 Ra4 Ra6 Qbb7 Nb8 Rf4 N8d7 Rf6 Qb8+ Kc6 Nc8+ Qb6 Qd6+ Kb7 Nb8 Qb2 Qd3 Qbb4 Rd6 Qb2 Kd7 e8B+ Ke7 Bb5 Qd2 Ba6 Ke8 Bae2 Be7 Bb5+ Kf8 Rf4 Qc1 Rfc4 Bf6 Rc6 Bc3 Ra6 Bd2 Rb6 Nd4 Kc7 Qb1 Ra6 Qa2 Rb6 Ne6+ Kb7 Qb1 Qhb4 Nh4 Be8 Ng5 Bb5 Rf6 Rc7 Qh7 Ra6 Qg8 Rc2 Re6 Kc7 Rg6 Rc5 Rd4 Re6 Rd6 Rc2 Ng2 Qh4 Nf4 Rf6 Nge6+ Kb7 Rg5 Rh6 Rg6 Rh8 Rh6 Rh7 Nc5+ Kc7 Ng6 Qf4 Ncd7 Qc4 Nc5 Qh4 Ne6+
2R1r1B1/k1PR1Q1r/1qP4p/2pK2BB/1bP3nP/3Qp1pn/7N/1Nb1Rb1r w - - 0 1 illegal: No proof kernel
n2k1KRR/1P2b3/6p1/1qr2Nb1/bRpp2B1/2P1rp2/1n1PNP1B/1Q1Qr1Q1 w - - 2 3 legal: proof: e4 h5 a4 b5 axb5 Nc6 g4 Nd4 gxh5 Ne2 Ra4 Ng3 Ra3 Nxe4 Ra4 Nc3 Ra1 Ne2 b4 d5 h4 f5 h6 a5 b6 c5 b5 e5 b7 c4 b8Q f4 h7 a4 h5 e4 b6 g6 h6 e3 Bh3 a3 Bg4 a2 Nf3 Qd7 Nh4 Ra4 Nf5 Ra6 Nc3 Kd8 Bb2 Ra5 Rb1 Nc1 Ne2 a1B Be5 Rc5 Rb4 Qb5 b7 Bd4 c3 Nf6 Qd6+ Nd7 Qb6+ Rc7 Kf1 Nd3 Kg2 f3+ Kg3 Nb2 Kf4 Be7 Rh2 Rf8 h8Q Re8 h7 Bh4 Bd6 Bdf6 Be5 d4 Ke4 Qa4 Kd5 Bhg5 Kd6 Qa5 Qb5 Nb6 Rh1 Na8 Bh2 Rc5 Qg1 Nd3 Qa4 Bd7 Qad1 Bb5 Qf8 Nb2 h8R Ba4 Rg8 Qb5 Qf7 Bg7 Qd5 Bh8 Qe4 Bhf6 Qeb1 Rf8 Neg3 e2 Ke6 e1R+ Ne2 Re8+ Kf7 Nd3 Be5 Nb2 Rhh8 Kd7 Bh2 Re3 Kf8 Kd8 Qb3 Bh4 Q3c2 Bhg5 Qcd1 Be7+
r4qrr/1p1pK1B1/pk1P1p1b/1Pnb4/B3P3/nN3PB1/R5n1/3QQQRN w - - 0 3 illegal: No proof kernel forced: wxLB
6bN/N1NbP2k/2pKp1rb/1p1R3q/1RP3nn/Q2BP2p/3R3P/2rn2QB w - - 2 3 illegal: No proof kernel
k2N4/r1p1Q3/2b4K/q2Pp1rN/R1QBnb1p/6pQ/1nP1PNP1/B1R2rb1 w - - 1 3 illegal: No proof kernel forced: bxLB
rNb1NQ1q/1r2pR1P/Q2nBPbR/1Q1p2k1/rN6/2b2pp1/3PP2n/2B1K3 w - - 0 1 illegal: No proof kernel
BKr4Q/p6Q/rb2Q2P/bnkppq2/3rp1b1/3R1N2/PBPPB3/Nn1R4 w - - 0 1 legal: proof: e4 f5 g4 fxe4 b4 h5 gxh5 c5 bxc5 Qa5 Nh3 Qc7 Ng1 Qd8 Ke2 g5 Ke3 d5 Kd4 Kd7 Ke5 Kc6 f4 b5 h4 b4 h6 g4 h7 b3 h5 e6 h6 b2 f5 g3 f6 g2 f7 Qb6 Rh3 Nf6 Nc3 b1R Bb2 Na6 Nf3 g1B Nb5 Rb8 Be2 Nc7 Qf1 Be7 f8Q Bd8 Qf7 Nh5 Rg3 Re8 h8Q Nf4 Qh3 Bd7 Qfg8 Rc8 Qgh7 Rg8 Qg4 Rg6 Qf5 Qa6 Qff6 Qa3 Rh3 Qe3 Qf5 Qf2 Nbd4+ Kb7 Kd6 e5+ Qff6 Bg4 c6+ Kb6 Qe6 Nb5+ Kd7 Kc5 c7 Ra8 c8B Ba5 Bb7 Rc8 Ba8 Rf6 Bc3 Rb4 Rd1 Rg6 Bb2 Rc4 Bf1 Ne2 Rg3 Nec3 Be2 Nb1 Nb3+ Kb4 Na1 Kc5 Rh3 Rd4 Rg3 Rc6 Rh3 Ra6 Kc8 Rg8+ Kb7 Re8 Ng5 Qf5 Rd3 Be3 Nf3 Rc8 Qef6 Bg5 Qff7 Bgd8 Qe6 Rcc6 Kb8 Bdb6 Qeg6 Rc7 Qe6 Rc8+
4R2K/1Qn2P2/1rbBN1Nq/R1PB1pB1/1p1rpP1q/2Q1P2n/4pk2/1Qbn4 w - - 0 1 illegal: No possible last move, all moves rejected
1B5N/1q2bB2/k1PB2pQ/3p1rQ1/npNP1Pp1/rP1Rq1N1/2nK1b2/2R4b w - - 0 1 illegal: No proof kernel
1NKq1b1q/R2Pp3/1QB1PQp1/3n1bQ1/R6p/1rn1qBBk/2P2p1P/2r2N2 w - - 0 1 illegal: No possible last move, all moves rejected
BBR2K1Q/4N1p1/2Nq4/QnP1b1P1/p1R2rqn/1Pp1p2Q/1BP5/2rbn1k1 w - - 0 1 illegal: No proof kernel
N1QB4/b1RBr3/R2qPB2/2nRp1p1/1p4k1/qp2P1r1/bP1K2nP/Q1n2N2 w - - 0 1 illegal: No proof kernel
4b1N1/1N1r2pq/1n3pr1/qR1Pp1P1/P2Q1b2/R1B1P1K1/Qn1p1N2/nBk4B w - - 0 1 illegal: No possible last move
1rQR1q1N/1pp1k3/1nPrbp1Q/NQKpqr1n/1B1P4/6P1/4bPR1/1B1B4 w - - 1 3 legal: proof: e4 d5 h4 a5 b4 axb4 e5 g5 hxg5 Bh6 g6 Be3 Ba3 Bc5 Bc1 Bd6 exd6 Bd7 Qe2 Bh3 Qd1 Bc8 Ke2 h5 Ke3 e5 c4 e4 Kd4 e3 a4 f6 c5 b3 c6 h4 a5 b2 d7+ Ke7 a6 e2 g3 e1Q a7 h3 g7 h2 Ne2 Kf7 Qb3 Ke6 Rg1 h1B Kc5 Ke7 d4 Ke6 Qb5 Qa5 Na3 b1R Bd2 Rb4 Nc4 Nh6 g8B+ Ke7 Nf4 Qf8 Be2 Bf3 Rg2 Nf5 Bd1 Be2 Bh7 Rb3 Bb4 Ng7 Bb1 Nh5 Ra2 Qa3 Na5 Rf3 Ra1 Qe3 d8Q+ Kf7+ Qd6 Qe5 Ng6 Be6 Ra4 Rh7 Nh8+ Ke8 Ra1 Rd7 Ra4 Rf5 Ra2 Kd8 Ra4 Qe8 Qf8 Rd6 Qh6 Qf8 Ra3 Ke8 Re3 Ke7 Re4 Ng7 Rg4 Nh5 Rg8 Qg7 Rc8 Qf8 Rd8 Qe4 Qd3 Nd7+ Kb5 Nb6 Kc5 Rb8 a8Q Rc8 Qb5 Qe5 Qa7 Ra8 Qb8 Ng7 Qc8 Nh5 Bd3 Rb8 Be4 Nf4 Bb1 Nh5
RN1B2R1/2Rq1n1p/qrp1kPB1/4P1r1/K1P1Np1P/n7/1bp1B3/Qb3Q1q w - - 0 1 illegal: No proof kernel
2k1q3/7p/Rp1KnQ1B/N3pqb1/P2NR3/pP6/PQbrPrRn/1N3b1B w - - 0 3 illegal: No proof kernel
2kNq2n/Kprb2qP/5N1r/b3BB1N/Rn1Pp2p/3R4/QPp1Q2P/3Q2n1 w - - 0 1 illegal: No proof kernel
2n5/3Bp1b1/3n2bB/RqNk2B1/1P3p1R/Q1Qpb3/2pPNPPR/r1r2b1K w - - 0 1 illegal: No proof kernel
1k4n1/2p5/2bp3b/2pP2r1/rBqNBNPK/B1R3N1/1PPp1Q1r/1n2RQr1 w - - 0 1 illegal: Other
2b3B1/kP1rBbn1/3q3b/pPpNp1R1/2P1n1Nb/1Q1RB1p1/PQ4K1/Nr6 w - - 0 1 illegal: No proof kernel
6b1/6Nb/R1RP1PN1/Br2Qpqp/2n5/p1N2Prn/KQp2kbP/R1bB4 w - - 0 1 illegal: No proof kernel
n7/PBb1Npp1/p4Rb1/2P2QPR/3nr1Qr/P1Bk2q1/1B1p1R2/K4Nbb w - - 0 1 illegal: No proof kernel
2Qbq1k1/K1p3Bb/nP2n1n1/p1P3RQ/1r2Pp2/NBpNR3/P5r1/1n4RQ w - - 0 1 illegal: No proof kernel
1qb1Rbr1/2pp3P/5bk1/2B3rn/p2b3p/P1Pn1B1N/3RBNP1/1Q2KQ1N w - - 0 1 illegal: No possible last move, all moves rejected
4R1b1/k4p1n/1r1Q1P2/NB1pPp1N/p1Q1BB2/P2P1nb1/1bR3N1/Knqq4 w - - 0 1 illegal: No possible last move, all moves rejected
2B2n2/q1RN1pp1/2Q3Nb/Kp2prR1/1P1nnqPn/1P2NP2/1B1Q4/B2b3k w - - 0 1 illegal: No proof kernel
1R1RK1Bk/pNP4p/n2Q4/rpb2r2/2p5/3B1NB1/PPp1rQ1P/1n1R2bq w - - 0 3 illegal: No proof kernel
3kn2N/1qRp2Nr/4p2r/2BPPp1n/2R2b2/1pP1Q1QR/3N1P1p/3qbK1B w - - 0 3 legal: proof: b4 c5 h4 g5 a3 gxh4 bxc5 b5 a4 b4 Ba3 Ba6 Bc1 Bb5 axb5 Qa5 Ra2 Qc7 Ra1 Qd8 e4 f5 d4 h5 g4 a5 b6 b3 b7 h3 d5 h4 g5 a4 c6 e6 g6 a3 c3 a2 g7 h2 c7 h3 c8R Rh7 Ba3 Bd6 Rc4 Ra7 Qd3 Bc7 Nd2 Nf6 g8N Bf4 Bc5 Qc7 Ne2 Ra8 Nh6 Kd8 Qe3 Na6 Ng3 Nh5 b8Q+ Qc8 e5 Nc7 Bg2 Ne8 Kf1 Ra4 Qb5 Qb7 Nf7+ Kc7 Rc1 a1B Nh8 Bb2 Ra1 Kd8 Ra3 Ra8 Ra7 Bc1 Bf3 Qb6 Rc7 Qb7 Re4 Ra1 Qbd3 Rh6 Rc4 Rh7 Nb1 Bd2 Bg2 Be1 Nd2 Nhf6 Nh5 Ra8 Rg1 h1Q Ng7 h2 Be4 Qf3 Rg3 Qd1 Rh3 Nh5 Bh1 Ra4 Re4 Rd4 Qg3 Rh6 Qe2 Rd3 Rc4 Rf3 Qe3 Rh7 Qg1 Rg3 Qg2 Rg6 Qgg3 Rgh6
r5BB/4kpbN/8/N1Kp1Q1b/1p2pP2/nnPNqP1R/1Q1RPqp1/4Rr2 w - - 0 1 illegal: No proof kernel
1Nq1QbB1/k1n5/pb3p1R/3pQPBp/K1NP2n1/PqN1r1p1/R3QqP1/8 w - - 3 4 legal: proof: e4 d5 c4 b5 h3 bxc4 e5 g5 Be2 g4 Kf1 g3 Ke1 Bg4 hxg4 a6 Bd3 Ra7 Bf1 Rb7 Bd3 Rb6 Bf1 Rd6 exd6 Qd7 Ke2 Qc8 Ke1 Qd8 f4 Kd7 b4 Kc6 g5 Kb7 b5 e5 g6 c5 a3 c3 d7 c2 g7 c4 b6 c3 Rh6 e4 Nf3 f6 Bd3 e3 Ra2 e2 Ne5 Nc6 Nc4 Qc8 d8Q Na7 Qd6 Nb5 Qe5 Nc7 Be4 Kb8 b7 Ka7 b8N Qb7 d3 Qb3 Bd2 c1B d4 c2 Nc3 Bb2 Bf5 c1Q Be6 Qcc2 f5 Qc1 Rg6 h5 Bg5 Nh6 g8Q Ng4 Rh6 Rh7 Qg6 Re7 Bg8 Qcc2 Qd2 Bc1 Qd1 Bf4 Qe8 Re6 Qe3 B4d6 Qe5 Bc5 Qd3 Bb6 Qd1 Qe4 Kd2 e1Q+ Kc1 Qf2 Qe2 Qd1+ Kb2 Qed3 Na5 Qc1+ Kb3 Qdb1+ Ka4 Qbb2 Qf4 Re3 Qfe5 Qbb1 Ne4 Qc5 Nc3 Qd3 Nc4 Qc6+ Kb3 Qe6 Ka4 Qc8 Qf4 Qb1 Qfe5 Qb3+
1Q4B1/n1ppr2p/Nq1k1Bbn/RB1P1pN1/2R4Q/2PPQP1n/4pK2/3r3q w - - 0 1 legal: proof: h4 g5 a4 gxh4 e3 b5 axb5 Bg7 Ra2 Bd4 exd4 Kf8 Ra1 Ke8 b4 e5 g4 Ke7 c3 f5 g5 a5 b6 h3 g6 e4 g7 e3 b5 h2 b7 a4 d5 a3 f3 a2 b6 Ra5 Qa4 Kd6 Bb5 Nh6 g8B Nc6 b8Q Na7 b7 Qf6 Qh4 Ra4 Kf1 Rd4 Nh3 Rd3 Rg1 h1N Ng5 Nf2 Rg4 Nh3 Rc4 Qd4 Kg2 Qb6 Na3 Rd4 Nc2 Rd3 Rb1 a1Q Nb4 Rd4 Rb3 Rd3 Ba3 Qh1+ Kg3 Rd4 Qa8 Rd3 b8Q Ba6 Bc1 Rd4 Ra3 Rd3 Ra5 Rd4 Be6 Re8 Bg8 Re7 Qe8 Rd3 Qab8 Rd4 Bc6 Bb5 Na6 Rd3 Rca4 Bc4 Bb5 Rd4 Rb4 Bf1 Rba4 e2 Rc4 Nf4 Kf2 Bh3 Qg3 Bg4 Qh4 Bh5 d3 Bg6 Be3 Rde4 Bd4 Nh3+ Kg3 Rf4 Bf6 Rfe4 Rc5 Ra4 Rc4 Rf7 Qe3 Ra1 Re4 Re7 Rc4 Ng1 Kf2 Rb1 Re4 Rd1 Rc4 Nh3+
N1B3Q1/B1Q1p1p1/bn3r1q/1bp1B2p/1KprPPPP/R1N3k1/2p5/QR5n w - - 0 3 illegal: Other
3nB2K/1Q2rBq1/PNp1pp1P/1p3Q2/R1p2npb/4PbP1/Q4N1k/R1r1B3 w - - 0 1 illegal: No proof kernel
r2b4/1p1npBpR/Q2Q1Qn1/3pp1Pb/2N5/R2Pr3/1PqrP1N1/K2Bb1Bk w - - 0 1 illegal: No proof kernel forced: wxDB
n7/1N3Q1P/PqRnr2k/P1N1Nb2/2B2Nr1/rPpNpR2/5B2/1b5K w - - 0 1 legal: proof: f4 h5 g4 c5 gxh5 f5 d4 g5 e4 gxf4 exf5 a5 b3 b5 c3 b4 cxb4 c4 bxa5 Bg7 Kf2 Be5 Ke2 Bd6 Ke1 Bc5 dxc5 Ba6 Qd2 Bb7 Qd1 Bc8 Kf2 Kf7 Kg2 Kg7 h4 e5 a4 d5 h6+ Kh7 a6 e4 a5 d4 c6 d3 h5 d2 f6 c3 c7 Qd5 f7 Qf5 Nf3 Qe6 Ne1 Ne7 f8N+ Kg8 h7+ Kg7 h6+ Kf6 Qh5 d1B Nd3 Nf5 Be3 Ra7 Qf7+ Kg5 Nd2 Rg8 h8N Qb6 h7 Nd6 Nc4 Bc2 Rh6 Bb1 Nce5 Bf5 c8N Re7 Kh1 Nd7 Nhg6 Re6 Bf2 f3 Ngf4 e3 Ra4 Rgg6 Rh3 Rg8 Rc4 Rgg6 Rg3+ Kh6 Rc6 Rg4 Be2 Qb4 Bf1 Nb6 Nfd7 Na8 N7c5 Qb7 Be1 f2 Rf3 Qb6 Be2 Nb5 Nd6 f1R+ Kh2 Nbc7 Bf2 Ne8 Ndb7 Rc1 Bf1 Nd6 Kh1 Rd1 Nb2 Rd2 Bc4 Rc2 Nbd3 Ra2 Nd5 Ra4 N5f4 Ra3
4b3/2B1bqnR/kP2P2R/2r1bQ1R/1P1qB2r/2N1R1PN/2n1K2q/3Rb3 w - - 0 1 legal: proof: c4 b5 g4 e5 a4 d5 cxd5 f5 axb5 g5 gxf5 g4 f4 g3 hxg3 exf4 e4 Kd7 b4 a5 d4 c5 b6 h5 d6 Kc6 f6 Kb7 f7 a4 e5 f3 e6 a3 d7 a2 d5 h4 d6 f2+ Kd2 c4 Ke2 h3 Kf3 h2 Qc2 c3 Bd3 f1Q+ Ke3 Ne7 Bb5 Nbc6 Bc4 Rh4 Qf5 c2 Nc3 Nd4 Bd5+ Ka6 Be4 Bb7 Bb2 Bc6 Rd1 a1B Nh3 Rc8 Bc1 Qf2+ Kd3 Qc7 d8R Be8 Bf4 c1B d7 Nc2 Bd6 Qa7 Bc7 Qd4+ Ke2 Bd2 Rhe1 Bb2 Rh1 Be1 Rd3 Bh6 f8R Bg5 Rh8 Bf6 Re3 Be5 Qg4 Nf5 Rh5 Ng7 Qf5 Bd6 Rh6 Be7 Rh5 Bg6 Rdh8 Be8 d8R Qb7 Rf1 h1Q R8h6 Qh2+ Rf2 Qe5 Rd1 Qd4 Bb8 Rc5 Bc7 Qbd5 Rh7 Qf6 Rg2 Qdd4 R5h6 Qf7 Rf2 Qh1 Rh2 Qg1 Rh1 Qh2+ Kf1 Qc4+ Ne2 Be5 Ng1 Qd4 Nc3 Qh3+ Ke2 Rf4 Rh2 Bf2 Rh1 Qg2 R1h4 Qh2 R4h5 Rh4 Nh3 Be1+
k1r2qnB/2rR1N2/PB1Qn3/bNN1pR2/PN3P2/K4P1b/bq4r1/6N1 w - - 0 1 legal: proof: g4 a5 c4 h5 gxh5 d5 cxd5 f5 b4 f4 bxa5 f3 exf3 c6 Bb5 cxb5 f4 Qd6 Ba3 Qb6 Bc1 Qd8 a4 Kd7 h4 Kc7 d4 e5 Kd2 g5 Kc3 g4 Kb3 b4 f3 b5 a6 g3 d6+ Kb6 h6 Ka7 d7 g2 d5 Be7 d6 Bf6 h7 Bg7 h5 Bf8 h6 Nc6 Be3+ Nd4+ Kb2 b3 Ka3 b2 Nc3 b1Q Rh5 Be7 Rf5 Qf8 d8N Bd7 Ra2 Rc8 Nc6+ Ka8 Rd2 Ne6 Nb4 Rc7 Bb6 Bd8 Rd5 Bc8 d7 Qc2 Qd4 Qd2 Qc5 Qe2 Qd6 Qc2 Nge2 g1R Rd1 Rg2 Ng1 Bh4 d8N Be1 Nb7 Qf2 Nc2 Bd2 Nc5 b4+ Kb3 Qe2 Nb5 Bc3 Ka2 b3+ Ka3 Ba5 Nb4 b2 Rd5 b1B Rd4 Ne7 Rd1 Rhg8 h8N Ba2 Nf7 Rh8 h7 Ng8 Rf6 Ng7 Rd3 Bh3 Rf5 Qc2 Qf6 Qf2 Rd7 Ne6 Qe7 Qc2 Qd6 Qg7 Qe7 Nf6 Nh6 Rhc8 h8B Ng8 Qd6 Qf8 Nf7 Qb2#
1qR1K2r/2NN3P/q3n1NP/2BrPr2/qqR4b/1pN2Bk1/1P6/1N2n2Q w - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 g4 c5 d4 h5 gxh5 d5 cxd5 b4 dxc5 Bg4 Nh3 Bd7 Ng1 Bb5 axb5 Be7 Qa4 Bd6 Qd1 Bf8 Kd2 Kd7 Kd3 a5 Kd4 f5 Ke5 g5 e4 g4 h4 b3 d6 a4 h6 f3 h7 a3 b6 f2 b7 a2 h5 f4 h6 f3 Rh5 g3 Rf5 g2 Qd5 Na6 Be2 f1Q Rf4 f2 Bf3 Nb4 Ne2 g1Q Be3 Qg4 Nec3 Ne7 Kf6 Nd3 Kf7 Ng6 e5 Ne1 Rc4 Ra5 Bd4 Be7 b8N+ Kc8 c6 Bh4 c7 Nf8 Qe4 Rd5 Bc5 Qe2 Nd7 f1R Ba3 Kb7 Bc5 Qb8 c8N Kc6 Ke8 Qd3 Qf5 Qge4 Qh3 Qde2 Qh1 Rf2 Ra4 Qa6 Rc4 Rf1 Nd2 Qg4 Rc1 a1Q Ndb1 Q1a4 Rc2 Qg8 Rc1 Qbb4 Rc2 Rg1 Rc1 Rg5 Rc2 Rf5 Ne7+ Kb7 Ng6 Kc6 Rc1 Qg7 Nb6 Qga7 d7 Qb8+ d8N+ Kc7+ Nd7 Qbc8 Ne2 Rd3 Re4 Qcb7 Ne6+ Kc6 Be3+ Kd5 Rc8 Qb8 Bc5 Rd4 Qg1 Rd1 Bh5 Rd2 Rc4 Rd4 Qh2 Ke4 Nc7 Ke3 Qh1 Kf2 Nec3 Kg3 Bg4 Rd5 Bf3 Ne6+
b1B2r2/1P2qPrp/1bB2P2/Q1R1N1Pn/R1K1R1N1/8/Rrk5/2b2bRr w - - 0 1 legal: proof: c4 a5 h4 b5 b4 f5 g4 e5 gxf5 g5 d4 g4 dxe5 Nc6 Bd2 Nd4 cxb5 Kf7 b6 Ne6 b5 Ke8 Bb4 Ng5 hxg5 axb4 Kd2 Ke7 Kd3 c5 e4 d5 f4 g3 a4 b3 b7 b2 b8R d4 e6 Kd6 a5 g2 f6 Qe7 f7 Bh6 a6 Qc7 f5 Ke5 a7 Ba6 e7 Qd6 e8R+ Qe7 Nc3 b1B+ Kc4 d3 Nd5 d2 Qa4 d1R Rbc8 Bg7 Nf6 Rd2 Qa5 Rb2 Ra2 Rb8 a8R Rb7 Ra4 Kf4 e5 Ke3 e6 Be4 Nf3 g1R Ne5 Ra7 Rh2 Rh1 Bh3 Beb7 Rab8 Ba8 Nfg4+ Ke4 Rg2 Nf6 Rg1 Nh5 Rb7 Rf8 Rd7 B6b7 b6 Bc6 Rd2 Bb5+ Kc3+ c4 Rc5 Rb4 Rda2 Rb2 Nf2+ Ke3 Ng4+ Ke2 Kd4 Rc7 b7 c3 Kd5 c2 Kd4 c1B Kc3 Bc6 Kd4 Bg2 Kc4 Qd6 Re7 Bf6 Re8 Bd8 Re7 Bf1 f6 Rc8 Re8 Bb6 e7 Rb8 Rd8 Qc7 e8B Qe7 Rd4 Rd8 Re4+ Kd1+ Nd3 Kc2 Bc6 Bg2 Nde5 Rg8 Nf2 Rg7 Bc8 Rf8 Nfg4 Bf1+
N3BRqN/1pR2Pq1/bP1p1nr1/K1P1B2q/6N1/NP6/Q2qr3/2rkN3 w - - 0 1 legal: proof: d4 e5 e4 c5 f4 cxd4 g4 f5 exf5 h5 gxh5 e4 a3 Bb4+ axb4 Nc6 Bb5 Kf7 Bf1 Ne5 fxe5 Ke8 Kd2 Ke7 h4 g5 c4 a5 e6 Kf6 b3 Ke5 f6 Kf4 b5 d3 Kc3+ d2 h6 Ke3 e7 g4 e8N d6 c5 g3 h5 g2 h7 a4 Kb4 a3 b6 a2 h6 Ra6 Qe2+ Kd4 Na3 d1Q Nc7 e3 Na8 Bf5 Bb2+ Ke4 f7 Nf6 Be5 Rg8 h8N Rg6 h7 Qg8 Nf3 g1Q Ne1 Qg4 Qd2 Qh5 Bb5 e2 Be8 Qc2 Rc1 a1Q Rh2 Qd1 Qa2 Ke3 Rc4 Bc2 Re4+ Kd2 Rh3 Ra4+ Kb5 Rc4 Ka5 Qdc1 Rh1 Kd1 Re3 Rg3 Ng6 Bd3 h8N Qd2+ Bc3 Qf3 Re7 Nh5 Rg1 Qh7 Ng2+ e1R Rc7 Qg4 Bb4 Rc1 Ne5 Ba6 Bc3 Qf3 Nh4 Qg4 Nhf3 Qhf5 Rg2 Re2 Ne1 Qgg5 Rf2 Rg1 Rg2 Qh7 Rg3 Qh4 Rg8 Rg6 Rf8 Qg8 Ng4 Qab2 Bb4 Qbg7 Bc3 Nf6 Bc6 Qd5 Be5 Qh5 Be8 Qd2+
1R1BqnN1/P1p4p/R1R1qRb1/n3b3/5BQK/1PR1b2r/1PP2pN1/1k6 w - - 0 1 illegal: No proof kernel
B1NR1Q1N/n1N2RN1/K2q1rN1/n2PP3/4rP1B/2q2pP1/qp2p1k1/7r w - - 0 1 illegal: No extended proof kernel
2r1rn1r/3QR2B/1n1B2r1/PP1bq3/4k2B/r1BN1n1P/2qbP1K1/1NR3B1 w - - 0 1 illegal: No proof kernel
4q1nq/1K3nr1/N1bN1RqN/1P3B1k/N3R3/1Pr4q/3PP1NQ/B1b2rn1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 a5 Ke4 f5+ Kd4 Kf7 h4 c5+ Kc4 f3 d6 f2 Kd5 f4 d7 c4 b3 f3 h6 Kg6 h7 c3 Bb2 c2 Nh3 c1Q Nc3 g4 Ra4 g3 Re4 a4 Ba1 a3 Na4 Qe8 d8N a2 Nc6 g2 Nb4 g1N Na6 Nd7 h5+ Kh6 Rh2 Ra7 Nf4 Qc2 Bh3 f1R Ng2 f2 Bf5 Ne5 Qc1 Kg5 h6 Nf7 Rh1 Qb1 Qc7 Ba3 Qh2 Bc1 Kc5 Rc7+ Kb6 Rc3 Ka7 Bd7 Kb7 Nh3 Rg1 Kh5 Rh1 Nf6 Rg1 Rg8 h8N Rg7 h7 Ng8 Rh1 Rd1 Rg1 f1Q Rh1 Qf3 Rf1 Qg3 Rff4 Rf1 Rf3 Qd3 Rff4 Qg6 Rf3 Ne5 Nf7 Qe3 Nd6 Nf7 h8N Qd3 Nh4 Ng1 Rff4 Qh3 Ng2 Qge6 Ng6 Qf6 Ne5 Qh6 Ng4 Qg6 Bb2 a1Q Nh6 Qh7 Rf2 Qh8 Rff4 Qb1 Ba1 Qc2 Be6 Qd3 Rf6 Qg3 Bf5 Qg5 Nb2 Qg6 Na4 Bc6+
3rN1Br/n6Q/N3rR1q/1P4N1/2KnNBr1/1PP2qn1/k1P1N1Rb/1q5b w - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 f5 exf5 gxh4 Ra4 c4 Ra1 c3 dxc3 Bb7 Qd4 Ba6 Qd1 Bc8 Kd2 e5 Kd3 h5 g4 d5 f4 Kd7 f6 a5 g5 d4 f7 a4 f5 h3 g6 e4+ Kc4 d3 g7 h2 f6 h4 Nh3 a3 Bf4 e3 Nd2 e2 Ng1 e1R Ra2 h3 Qe2 Ra4+ Kd5 Qb6 Nb1 d2 Bg2 d1R+ Qd2 Re6 Bc7 Nh6 g8N Nf5 Bf4 Nc6 Qd3 Nfd4 Qh7 Na7 Nd2 Bd6 Ne2 Kc7 Rg1 h1N Ne4 h2 f8N+ Bd7 f7 Ng3 Bf3 h1Q Ngf6 Rd2 Bh5 Qf3 Rg2 Be5 Ra1 a2 Rf1 a1Q Ne8+ Kb7 Bg6 Qb1 Bf5 Bc8 Nd7 Qa6 Nb8 Kb6 f8N Ka5 Bg6 Bb7+ Kc5 Rb4 Bf7 Ka4 b3+ Ka3 Bg8 Ka2 Rff2 Re7 Rf1 Qh6 Ne6 Ra4 N6g5 Re6 Na6 Ba8 N4f6 Qb7 Rh2 Ndc6 Be3 Nh5 Nf3 Rg4 Ng5 Rd8 Bd2 Bf4 Kc4 Nd4 Be3 Qg2 Bc1 Bf3 Nfe4 Qf2 Bd2 Bh1 Rg2 Bh2 Bc1 Qe3 Rf6 Qf3 Bf4 Ng3
4BR2/k5Bq/B1n1r2P/2b1qr2/1n3PQP/1KBN1nrP/2R1N3/1b3qrB w - - 0 1 illegal: Other
B3Q3/PR1rrPB1/2R2b1P/2P1Nqr1/2Bknr2/7b/n4Nbn/1K2qB1B w - - 0 1 illegal: No proof kernel
BrB5/P1P5/1NP2Q2/B3B3/1n2bB1K/k1bP1q1R/qb3q1N/1nq1rn1R w - - 0 1 illegal: No proof kernel
2BNQbBR/6K1/PB4n1/PNn2rRp/5q1P/B1B5/qnPr4/bk2bq2 w - - 0 1 legal: proof: d4 c5 dxc5 a5 g4 f5 e4 fxe4 f4 b6 b4 Ba6 bxa5 Bc8 f5 Bb7 f6 Bd5 Bg2 Be6 Bf1 Bf5 gxf5 Ra6 Kf2 Ra7 Ke1 Ra8 Ke2 Kf7 Ke3 g5 Kd4 h5 Ke5 d5 a4 g4 h4 e3 a6 b5 a5 g3 c6 e2 c7 e1B c8B b4 Na3 d4 Bd2 g2 Be3 d3 Bc1 b3 Qf3 b2 Qe3 b1Q Nh3 g1Q Qg5 d2 Nf2 d1N Ne4 Nb2 Be3 Qd2 Bb6 Qa2 Nc5 e6 Bc4 Ne7 Bb3 Qf1 Rg1 Ra7 Qe3 Rd7 Rg8 Ng6+ Ke4 Qd6 Nb5 Bc3 Nb7 Rd8 Rd1 Nd7 Rd5 e5 Qe1 Rh7 Rh8 Qb8 Nc5 Qd6 Ne6 Rg7 Rc5 Qd2 Bc4 Qdf4+ Kd5 e4 Qe2 Ke8 f7+ Ke7 Qe1 Kf6 Qe3 Bd6 f8B Rf7 Bh6 Bf8 Bg7+ Ke7 Qe1 e3 Bb3 e2 Bc4 Bd2 Bc3 Be3 Bb3 Bd4 Bc4 Kf6 Bb3 Re8 Nd8 Re3 Bc4 Rd3 Bb3 Kg7 Ke6 Rd2 Qd1 e1B Qe2 Nge5 f6+ Kg6 Kd5 Kf5 Qe3 Ng6 Qe8 Kg4 Ke6 Kf3 Rg5 Ke2 Bc4+ Kd1 Bd5 Rh7 f7 Kc1 Bb3 Kb1 Bd5 Bb4 f8B Rf7 Bd6 Rf5 Bb3 Bf6 Kf7 Bc5 Kg8 Bg7 Bd5 Bcd4 Ba3 Bf8 Kh7 Nc5 Bg8 Nba4 Bcb4 Ba1 Bc3 Bd6 Kh6 Nb2 Kg7 Bf8+
nNnb2N1/3R1rPb/5Rq1/1PK3k1/p2B3q/2R2P1P/BQ1nR3/b1rR1r2 w - - 0 1 illegal: No proof kernel
RK2rqrn/2n3p1/R2n2kb/1R1B1R1N/2R1P3/N4q1q/1P1QP2P/2b1Bb2 w - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 hxg4 a4 b5 axb5 e5 f3 e4 fxe4 Ba6 Ra4 Bb7 Ra1 Bc8 Kf2 a5 Kg3 f5 Kf4 Kf7 Ke5 c5 d4 a4 d6 g3 d5 a3 d7 g2 b6 f4 d6 f3 b7 f2 Bd2 a2 Qe1 c4 Qc1 c3 Be1 c2 Bd2 Kg6 Kd5 Na6 Kc6 Nc7 b8R Be7 Rb5 Bg5 Nh3 g1N Na3 Qf8 d8R Bh6 d7 Nf3 Be1 Ng5 Qd2 c1B Re8 Rb8 d8R Nf7 Rdd5 Be6 Bg2 f1Q Rf5 Qf3 Rd8 Ra8 Kb7 Ne7 Rg1 Rg8 Nf4+ Kh7 Bh3 Nc8 Rf1 Nh8 Nh5 Kg6 Rfc5 Bd7 Be6 Qh3 Rc4 Qhf3 Bd5 Bh3 Rf2 Bf1 Re8 Qh3 Rf5 Qf3 Rb1 a1Q Rd8 Qa2 Ra1 Qab3 Ra2 Qh3 Ra1 Qbf3 Ra2 Ra6 Kb8 Re6 Rd6 Qf7 Ra6 Qf8 Ra8 Re8 Nc2 Qf6 R2a6 Qd6 Na3 Qf6 R6a7 Qf8 Ra6+ Nd6+
3KRnb1/5p2/b1RPNr1k/r1B3Rq/1Pr4Q/RB1n2b1/1RnPqP1N/8 w - - 0 1 legal: proof: h4 c5 e4 d5 exd5 b5 b3 g5 a3 b4 axb4 c4 bxc4 gxh4 Ke2 e5 Kf3 a5 Ke4 h5 g4 a4 g5 h3 g6 h2 c3 a3 g7 h4 c5 h3 c6 a2 c7 Rh6 c4 Ne7 g8R Rf6 c5 Nbc6 Rg5 Ra5 Na3 Nd4 c6 Ng6 Nf3 Bd6 Nc2 Kf8 Bc4 Kg7 Bb2 Ba6 c8R Qe8 c7 Kh6 Bb3 Nf8 Qe2 Rc5 Rhb1 h1B Qc4 h2 Rd8 Bg2 c8R h1Q Rc6 Qh5 Rb8 Bh3 Nh2 Qe7 Re8 Bf5+ Ke3 e4 Bc3 Bd7 Rb2 Bg3 d6 Bg4 Qd5 Bf5 Qc4 Ne2 Be5 Nf4 Nd4 Bh7 Ne6 Bg8 Kd4 e3 Ke4 e2 Bd4 Ra5 Bc5 Nd3 Kd5 e1R Qh4 Rb1 Rb6 Rc1 Kc6 Bc8 Ra6 Rc4 Rc1 a1N Kb6 Nd7+ Kc7 Nc2 Ra1 Bb7 Ra3 Bc8 Rc6 Ba6 Ng7 Qe3 Ne6 Nf8 Kd8 Qe2
1R1B1bq1/R1P1K2R/q1k5/r1Pb1b2/2NPPN2/1R1Bp1q1/rnQ5/1Rnr4 w - - 0 1 illegal: No proof kernel
1Rn1K3/NNN2qkB/3P1N2/nnBPr1r1/4PQ2/4rP1b/N5pb/1bn3R1 w - - 0 1 illegal: No possible last move
R1N1B3/2krnb2/2n2KPr/1pn2P2/2Q3P1/2PB3B/1B1Bn1q1/bR2q1Nb w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 h5 Kd3 b5 Ke4 e5 a4 b3 g4 h4 f4 h3 a5 b2 a6 h2 f6 Rh6 Kf5 e4 g6 e3 c6 e2 a7 e1N c7 Bg7 Qd4 Nc6 Bd2 Nd3 Nc3 b1Q Na4 Nc5 Bh3 Qe1 Qc4 d5+ Kg5 Kd7 f5 d4 Nb6+ Kd6 Ra6 Be6 c8B d3 Bd7 Qc7 f7 Nge7 f8B Bf7 Be8 Ba1 Bg7 Rd8 a8B Qb7 Nc8+ Kc7 Bb2 Rd4 Kf6 Rd7 Bc1 d2 c3 d1B Bd2 Bf3 Ne2 Bg2 Rf1 h1N Ng1 Ng3 Ra7 Qe3 Rb1 Qe1 Ra5 Ne2 Ra6 Nb8 Ra5 Qf3 Be4 Bh1 Bd3 Nbc6 Ra8 Qg2
1R1nBQbr/3Rn1P1/1b5N/qn1NR2K/k1PB2PP/4pr2/b4R2/1R2qn2 w - - 0 1 illegal: No proof kernel
1RR5/3r1rpK/k1nq3q/B1BB1B2/nB1P3P/2NqQ2b/3PbqP1/1b2N3 w - - 0 1 illegal: No proof kernel
2N2N1K/rq1n1P2/3R1P2/Pbn1b1qN/2q3r1/1B2Qr1r/3PR1pB/1N2N2k w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 Kd6 Ke4 g5 f4 c5 h4 e5 a4 b5 f6 g4 f5 g3 h6 g2 a5 b3 h7 b4 h5 b2 h6 c4 f7 c3 Qb3 c2 Nf3 Ra7 Ne1 Ba6 Bc4 Bb5 Qe3 Bg7 Bb3 Na6 Rh5 Qg5 Rh2 Kd7 d6 Nc5+ Kd5 e4 Rh3 Bf8 Ke5 Nf6 Rg3 Kc6 d7 Bg7 d8N+ Kc7 Nc6 Nfd7+ Kd5 Bd4 Ne7 Be5 Nc8 Rg8 h8N Rg7 Bc4 b3 h7 Rg6 f6 Rh6 Ng6 Rh3 Rg4 Rf3 h8N Rh3 Qf3 e3 Nf4 e2 Qe3 Rf3 Nh5 Rh3 Na3 b1R Bb2 c1Q Ng6 Rf3 Bd4 b2 Bb3 Qc3 Rf4 Rd1 Rf5 b1Q Nf8 Qb4 Bc3 Rc1 Bb2 Rc4 Bd4 Qa2 Nb1 Rh3 Bc3 Rg4 Rf2 Qb2 Ra4 Qbf4 Rd4 Rf3 Nc2 e1R Re2 Rh1 Ne1 Rhh3 Bb4 Ne4 Ke6 Nec5+ Ke7 Kc6 Rc4 Kd5 Rc2+ Qc4 Ke8 Nd3 Bd6 N3c5 Rc3 Bd4 Bh2 Be5 Ng6 Ke6 Rd3 Kf5 Rd5 Qcc2 Nf8 Qc4 Na3 Qb1 Rd6 Qbe4 Nb1 Qb7 Rd3 Rd4 Ke7 Kg4 Ke8 Rdf4 Rd6 Kh4 Ke7 Rg4 Bf4 Qb8 Ne6 Nb6+ Kf8 Qc7 Nhg7 Qb7 Kg8 Nbd7 Kh8 Rh2 Nh5 Kh3 Nf8 Rh1 Ng3 Kh2 Nh5+ Rfg3 Qe4 Kg1 Qf3 Rhh3 Qd3 Kh1 Qe3 Rf3 Bg3 Qc1 Bh2 Qc4
1q4Nq/3P3q/KnP1BQ1n/2P1B1R1/3rRP1B/5k2/1pr1Nb2/1bB1qbB1 w - - 0 1 illegal: No proof kernel
1Br5/RPP4b/1Pnq4/1RNN2Pk/2N1rp2/bB3qn1/1q3Q2/NN2n1Kq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 h5 g4 d5 e4 a5 c4 f5 b4 Kf7 e6+ Kg6 b6 h4 e7 d3 e8N h3 c5 d4 b5 d2 b7 h2 b6 d3 e5 a4 c6 a3 e6 a2 e7 Nd7 Qf3 d1Q Nf6 d2 e8N Bb4 Nd6 Ra4 Bc4 Ra5 Nd5 Rc5 Ne2 Rh4 Bb3 Ne7 Nd4 Ba3 Nc4 Ne5 Nc2 Qd6 Kg2 Qe2+ Qf2 d1Q Bf4 Nd3 Rf1 h1N Kg1 Qed2 Re1 Qf3 Re5 Ne1 Bh2 Kh7 g6+ Kh6 g7 Ng3 g5+ Kh5 g8N Re4 Ngf6+ Kh4 Ne8 Kh5 Nec7 Qc1 Ne6 Qb2 Ncd2 Rc3 Nc5 Be6 Nc4 Bg8 Re6 Bh7 Rf6 Nf1 Be5 f4 Rf5 Qd8 Bc7 Qd6 Bb8 Ng3 Re5 Rd3 c7 Nc6 Rf5 Rd2 Re5 Rdd4 Rf5 Re8 Re5 Rc8 Nf6+ Kg6 Na4 Nh5 Nbd2 Bb4 Kf1 Re4 Rb5 Ng2 Nd5 Bc5 Rb1 Bb4 Nc5 a1Q Rc1 Qa4 Ra1 Ng3+ Kg1 Kh5 Kh2 Qa8 Ra4 Qa5 Na1 Ba3 Nb1 Qe1 Ra7 Qf1 Qe3 Ne1+ Qf2 Qh3+ Kg1 Qhh1#
2qrN1bR/1Bb2Pn1/RP3N2/P1N1br2/P1Q1n3/2b3b1/KBkNb2p/7N w - - 0 1 illegal: No proof kernel
rBB3k1/q5b1/r1Pp2bQ/1B2P3/PPbB1B2/nb1Rr2N/1K3r1R/1N4n1 w - - 0 1 illegal: No proof kernel
2bk1B2/7P/2q1rPR1/nNrb1Nn1/PNbb4/1P1K1n2/5pQ1/NRNB3n w - - 0 1 illegal: No possible last move
k1r1R1n1/4B1bN/2r3BP/1p1n1bB1/1P1B1B1r/b3pPq1/P3K1R1/n1N2Q2 w - - 0 1 legal: proof: e4 a5 b4 h5 c4 f5 exf5 d5 cxd5 h4 Qb3 h3 gxh3 a4 h4 axb3 h5 Ra4 Bd3 Ra5 Bf1 Ra8 d4 Kd7 h4 c5 h6 Kc7 h5 g5 h7 e5 d6+ Kc6 f6 b5 f7 Kb7 d5 b2 d7 g4 d6 c4 Nf3 c3 Ke2 e4 Rh2 c2 Ng5 g3 Rg2 Qc7 d8B Bf5 d7 Bg7 f8Q Na6 Nd2 b1N Be7 Rc8 d8B Na3 Nb3 Ka8 Bf4 c1B h6 Nc2 Rb1 Ba3 Re1 Na1 Nc1 Qe5 Qf7 Nc7 f3 Qd6 Qc4 Nd5 Qd3 Rc6 Qb1 Ngf6 Qd3 Rf8 h8B Ng8 Nh7 Qe5 Beg5 Qc7 Bde7 Rc8 Rd1 e3 Qb1 Nb6 Rd8 Nd5 Re8 Qd6 Kd1 Qc7 Bd3 Qb8 Ke2 Qc7 Rh2 g2 Be4 g1R Rg2 Rh1 Bd3 Be6 Bg6 Bf5 Qd3 Rh4 Qd1 Bf8 Bd4 Bg7 Qf1 Qd6 Bg3 Qf4 Bh2 Qg4 Bhf4 Qg3
2Q4N/2q1r1Pr/qN5N/1Pn4K/B2n1B1b/Np1kpRPq/1PR2b2/3n2N1 w - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 h4 d5 cxd5 g5 hxg5 b4 Qf3 Bd7 Qd1 Bb5 axb5 Qc8 Ra4 Qd7 Ra1 Qd8 Ke2 Kd7 d4 Kd6 f4 a5 f5 c5 g6 h5 g7 e5 g3 h4 f6 a4 f7 h3 Nc3 a3 Qc2 h2 Kf2 c4 Nge2 a2 Rg1 h1N+ Kg2 e3 Kf3 e4+ Kg4 Nd7 Rg2 Be7 f8N Qc8 Ng1 e2 Nb1 e1B Be2 c3 Bd1 Ra7 Na3 Nc5+ Nd7 Nh6+ Kh5 Rh7 Nb6 Bf2 Rb1 Bh4 Bf4+ Ke7 d6+ Ke6 d7 Kf5 d8N a1Q d5 Re7 Qc1 c2 d6 e3 d7 Ke4 Nf7 Nf5+ Nh6 Kd3 d8N Nd4 Nf7 Qh3 Nh8 Qa2 Bf3 Qae6 Bd5 Qc8 Bb3 Qa6 Ba4 b3 Rh2 Be1 Ra1 Nf2 Rb1 Nd1 Rf2 Rc7 Rf3 Bf2 Qd2+ Ke4 Qc3 c1Q Qc4 Qc3 Rc1 Re7 Rc2 Qca5 Qg8 Kd3 Qf8 Qc3 Qc8 Qca5 Nbc4 Qd8 Nb6 Qc7
6br/N1P1n1pN/2R3P1/K2B3P/2rb1nN1/p1r2qR1/kNBPb1q1/3NQ3 w - - 0 1 illegal: No proof kernel
3rk2B/2Pp1N2/1B1BP1bn/4P3/Kr1P4/nB1q3r/bpN4b/qQ1RRB2 w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c5 b4 Qf6 c3 Nc6 b6 Qe7 b5 Qd8 Qa4 Nb8 Qb4 cxb4 Kd1 a5 Kc2 f5 Kb3 h5 g4 f4 e4 h4 e6 h3 c4 h2 g6 f3 g7 f2 c5 Qh4 b7 Qh5 c6 Qf7 b6 Ra6 Nh3 Qf5 Na3 Bd6 Nc2 Nh6 Ka4 b3 g8B b2 Ng5 Bf4 Rg1 h1R Nf7 Bh2 d4 Ra8 Bf4 Na6 b8B Bb7 Bfe5 Nb4 Bbc7 Rd8 Re1 Qf3 Bcd6 Qd3 c7 Bd5 b7 Ba2 b8B Rh7 Rd1 Rg7 Re1 Rg5 Bh8 Rd5 Ba7 Rb5 Na1 Nc2 Bb6 Na3 Nc2 Rh5 g5 Rh3 g6 Rh5 g7 Rb5 Bh3 f1B e5 Bg2 Bh7 Be4 Bf1 Bg6 Rd1 Bf4 Re1 Rh3 Rd1 Bh2 Rh1 Bh5 Be4 Bg6 Bd5 Rh4 Rg1 Rh3 Bb3 Bf5 Bg2 Nc4 Rdf1 Bb1 Rc1 Ne3 Ka3 a4 Bf8 Be4 g8Q Bh7 Qg4 Bg6 Rcf1 Rd5 Kb4 a3 Bd6 a2 Qd1 Rb5+ Ka4 Nc4 Qc1 Na3 Rd1 a1Q Rge1 Ba2 Qb1 Qf5 Bf1 Qe4 Bf8 Qd3 Bd6 Rb4+
b1K3B1/1pNb2P1/1RNP3Q/2B5/krprq1BP/B3B3/1nPr1rR1/3n2b1 w - - 0 1 illegal: Other
2rK4/3N4/1P4q1/2qRN1nN/2Pb1N1b/k1BRP1pn/3NBQPp/1bb2r2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 c5 dxc5 e5 fxe5 g4 Nd2 Na6 Nb1 Qg5 hxg5 Nb8 Kf2 Ke7 Ke3 a5 Kd4 h5 Kd5 f5 b4 f4 c4 g3 g6 a3 e6 a4 g7 f3 e3 h4 b5 h3 c6 h2 b6 f2 c7 a2 Be2 f1Q Bg4 a3 Qd2 Na6 Qd4 Nf6+ Ke5 d5 Qd1 d4 Ne2 d3 Bf3 d2 Kf5 Kd6 g8N Kc5 Ke5 Kb4 e7 Ne4 e8N Nf2 Kf6 Be7+ Kf7 Nc5 Ng7 Nh3 Ke8 Bh4 Bb2 Ne4 Nf4 Neg5 Qc2 d1Q Qf2 Qdd3 Be2 Qg6+ Kd8 Bf5+ c8N Rh6 Nd2 Bb1 Rg1 Rh7 Ngh5 Rf7 Ngf6 Qc1 Rd1 Qc3 Bf3 Qd4+ Nd7 Qc5 Be2 Ka4 Nb8 Rf6 Nd6 Kb4 Ke7 Ka4 Nd7 Rc8 Nd3 Rf3 Ndf4 Kb4 Bc3+ Ka4 Qg1 Rf1 Qf2 Ne6+ Bf6 Nd8 Nf3 Be4 Ng7 Nf7 Rd5 Nfg5 Rad1 a1B Ngh5 Bb1 R1d3 a2 Nd2 Bb2 Bg7 Bc1 Bc3 Qc6 Nf7 Ka3 Nfe5 a1B Ba5+ Ka2 Bb4 Bd4 Bc3 Ka3 Ng4 Rc7 Kd8 Qc5 Nge5 Rc8#
1BR2r2/2B2Rrb/b1kPBK2/bp2nP2/1Prp4/1NqPB1bB/8/bQ2N3 w - - 0 2 legal: proof: e4 a5 b4 h5 g4 f5 gxh5 d5 exf5 a4 Qf3 Nc6 Qc3 Nd4 Qb3 axb3 c3 Nb5 c4 d4 Ke2 Nc3+ Ke1 Nd5 cxd5 Be6 Ke2 Bd7 Ke1 Bc8 Ke2 Kd7 Kf3 b5 Kg4 c5 Kg5 e5+ f6 g6 h4 b2 f4 c4 a4 e4 h6 c3 h7 c2 d3 e3 h5 e2 a5 e1B h6 Bb7 f5 Bf2 a6 Qb8 a7 Bc5 f7 Qc7 f8B Bb6 Bh3 Bg3 Bd6 Nf6 Nf3 Ng4 Be3 c1B Nbd2 b1B Ne1 Ba2 Nb3 Raf8 a8B Qc3 Bb8 Bb2 Rc1 Ba1 d6 Bc8 Bd5 Ba5 Be6+ Kc6 Rg1 Rhg8 h8Q Rg7 h7 Ba6 Qg8 Rc7 h8B Ne5 Bf6 Rcc8 Bd8 Rc7 Kh6 g5 Qg6 g4 Kg5 Bf2 Qf7 g3 Kf6 g2 Rh1 Rc8 Bdc7 g1R Rh2 Rg4 Rg2 Rgg8 Rg7 Bg3 Rc2 Rfe8 Qh5 Ref8+ Rf7 Rg5 Qd1 Rg7 Nc5 Bd5 Qc1 Bf3 Nb3 Bh5 Qd1 Bg6 Qb1 Bh7 Bg4 Kb7 Bd8+ Rc7 Bh3 Qb2 Rc6 Qc3 Rc4 Rd7 Rc8 Rc7 Bd7 Rc5 Bdc7 Rc4 Be6 Kc6
4q2N/1kn4P/3K1n2/P1pr3B/pn1BN2R/BBP1b1q1/R2Pr2q/1Q1qB3 w - - 0 1 illegal: No proof kernel
NRb1nr2/1P1N4/3Pp3/2q2n2/R1n1kp2/R1BR4/Bb2P1PQ/q2n1KRb w - - 0 1 illegal: No proof kernel forced: bxLB
2N3n1/b5NR/n2r1pbn/1BP1K3/3Q1P2/rP1bP1Nk/1B2Np1b/b1N4R w - - 0 1 illegal: No possible last move, all moves rejected
3rR2K/1p3rB1/bN3n2/PBn1RN2/bQ1b1P2/1PBBp2r/1BP4b/r2k4 w - - 0 1 illegal: No proof kernel
Q1br3k/3nB3/B1pNnN2/1N5q/1n1N1b2/RN3pP1/3P1pPP/Kbr2R2 w - - 0 1 illegal: No proof kernel
b1qR3N/r1nNB1P1/qQ3b1p/N2p4/4n1rk/NBN2Pp1/K3P1P1/R4b2 w - - 0 1 illegal: No proof kernel forced: bxLB
bk1NK1Bq/1N1B4/rR3qp1/2R3n1/Bp3r2/BB1p1P2/1n1PP1P1/4Qn1q w - - 0 2 illegal: No proof kernel forced: bxLB
K1qB3k/PQ2n3/N1Bp1p1B/pr6/Bq1n1n1B/5R1P/2b1PPR1/2N1qr2 w - - 0 1 illegal: No proof kernel
1r3K2/3QP1p1/n3pbR1/3n3B/N1R1Rp2/RN1Pq3/1P2qqPk/3RBbb1 w - - 0 1 illegal: No proof kernel
n1K5/4k2b/pRrq3p/2Q4B/1NqRpN1N/1nP1P3/Pbb3NP/2b3NB w - - 2 3 legal: proof: f4 g5 fxg5 c5 b4 b6 bxc5 b5 Bb2 b4 Bd4 b3 c4 b2 Bf2 Qc7 Na3 Qd8 Bg3 Na6 Be5 Rb8 Rb1 Rb3 Bg7 Rc3 dxc3 Nb8 Be5 Bb7 Bf4 Bc8 Bc1 bxc1B Rb4 Bb2 Nb1 Ba1 Rb5 Bb7 Rb2 Bc8 Kf2 f5 Kf3 e5 g4 d5 g6 e4+ Kf4 d4 Ke5 a6 g5 d3 g7 f4 e3 d2 c6 f3 g6 f2 c5 h6 c7 Qd7 c6 Be7 Na3 Bf8 Qh5 d1Q Bg2 f1B Rb6 Bb4 Nc2 Qf3 Ne1 Bb7 c8N Qdf7 c7 Rh7 Nd6+ Ke7 c8N+ Kd7 Ne7 Bb2 Nd5 Nf6 g8N Bd3 g7 Qd1 Nge7 Ne8 g8B Bc2 Nf4 Bc8 Ndf5 B4a3 Nh4 Nc7 Nc6 Qc4 Nb4 Ke7 Bf7 Bf5 Bf3 Rh8 Neg2 Bh7 Qf5 Bc1 B7h5 Bab2 Qc8 Rg8 Qf5 Rg6 Qf8+ Kd7 Qc5 Nc6+ Kf5 Nd4+ Ke5 Rg3 Kf6 Qdd3 Ke5 Kd8 Kd6 Nb3+ Kc6 Rg6+ Kb7 Ke8 Kc8 Qd2 Ngh3 Qdd4 Rd1 Qd6 Ng1 Ke7 Rd4 Rg5 Qb5 Rc5 Qa5 Rc6 Qc5 Qf1 Ne1 Qe2 Bh1 Qc4 Neg2 Na8+
1R2R2B/1n4NR/BR2pp1P/4P1bN/R1b2p1n/2pqP1K1/Q4Pb1/n4r1k w - - 0 2 illegal: No possible last move, all moves rejected
6Q1/1P1q2Nn/n1k2B2/1n3RNp/pr1R1Kp1/N1PNr1b1/1P1N1pP1/5B1q w - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 fxe5 Bb7 d4 Be4 h5 Bg6 hxg6 cxd4 Kf2 d5 Kg3 Kd7 e4 f5 e6+ Kc7 b6+ Kb7 e7 a5 e8N h5 g7 g4 e5 d3 e6 d4 e7 d2 Nf3 d3 Na3 a4 Ne1 Rh7 Nc7 Kc6 e8N Nf6 g8N Qd7 Ne6 Re7 N8g7 Nh7 Kf4 Na6 Ng5 Rb8 Nf6 Re3 Nfe4 Be7 Qf3 d1N Nd2+ Qd5 Rg1 Nc3 Rb1 Nb5 c3 Bf6 Qe4 Bd8 Qe8+ Qd7 Qg8 Bf6 Rh1 Rb7 Rh3 Rb8 Rf3 Bd8 Nb3 d2 Nd3 d1Q Bd2 Qe1 Rd1 Qh4 Be1 Qh1 Nd2 Be7 Bh4 Rb7 Nge4 Bd8 Bf6 Be7 Ke5 f4 Rf2 f3 Kf4 Bd8 Ng5 Be7 Re2 f2 Ree1 Re6 Re5 Rb8 Rf5 Re4+ Kg3 Rb4 b7 Re8 Re1 Bd8 Re4 Re6 Rd4 Re3+ Kf4 Be7 Ngf3 Bd8 Be5 Bh4 Bf6 Qe6 Ng5 Qd5 Qd8 Qd7 Qg8 Bg3+
n4BRN/1Rp1pN1p/Q2N4/1nNb1B1N/r1P2qP1/P2p2n1/P7/Kn2b1k1 w - - 0 1 illegal: No proof kernel
8/b1R2Q1N/1RRq2R1/4Pq1p/NpR1BK1P/Bp2pbr1/1q1PPnq1/5k2 w - - 0 1 legal: proof: f4 d5 g4 f5 c4 e5 Bh3 b5 Kf1 e4 Ke1 Nd7 Bg2 Ne5 Bf1 a5 fxe5 f4 b4 axb4 cxd5 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Be6 Bg2 Bd7 Bf1 Bc8 Kf2 Kf7 a4 g5 h4 h5 d6 c5 d7 f3 Ke3 c4 a5 c3 f6 Kg6 a6 Kf5 f7 Kg4 a7 Kg3 a8R c2 R1a2 b3 Rb8 b4 Bg2 f2 Ra1 f1Q Ba3 c1Q Nh3 g4 Rg1 Bb7 Ng5 Qb2 Nc3 Nh6 Na4 Qf5 Nh7 Rg8 Rc1 Qc7 d8R Bc5+ Rd4 Qd6 f8R Ba7 Rfc8 Kh2 Ng5 g3 Qf1 Rg7 Bh1 g2 Nh7 Rg3+ Qf3 Bc6 Rb6 Kh3 Rc7 Kh2 Rgf1 g1Q+ Rf2+ Qg2 Rdc4 Bd5 R1c2 Kg1 R2c3 Qc8 Kf4 e3 R4c6 Ng4 R3c4 Qh3 Rh2 Nf2 Bg2 Qce6 Bh1 Kf1 Rg2 Rg8 Rg6 Qg2 Qg4 Rg7 Qf5 Bf3 Qf7 Qc8 Re6 Rg5 Rg6 Rg3 R4c5 Qh2 Rbb5 Bg4 Be4 Qg2 Rbb6 Bf3 Rc4 Qf5+
4n1r1/1ppB1P2/b1r2nRp/7Q/1BPK4/pPNP2qb/5Bkp/RB2B2N w - - 0 1 illegal: No proof kernel
4N3/p3p1Kp/b1n1kBp1/BqprnR1B/Q6P/n2Bp3/1PPNP2B/5R2 w - - 0 3 legal: proof: a4 d5 d4 b5 axb5 Nd7 f4 Ndf6 f5 Nd7 f6 Nb8 Qd3 Na6 Qe3 Nb8 Qe4 dxe4 g3 g6 Kf2 Bg7 fxg7 f5 Nh3 f4 Ng1 f3 Ke1 Nf6 Ra5 Rf8 Ra2 Ng8 Ra1 Rf4 gxf4 Na6 Kf2 Qd5 Ra4 Bf5 Ra3 Kf7 Bg2 Nf6 Bh3 Rh8 Ra1 Ke8 Ra5 Bc8 Ke1 Nb8 Ra1 Qd8 Bf1 Ng8 Kd2 Kf7 Ke3 c5 h4 f2 b6 Na6 f5 Qc7 f6 Qe5 d5 Bf5 b7 Qc3+ Kf4 Bg4 Kg5 Bc8 b8B Qe1 d6 Bf5 d7 Nb4 d8B Bh3 Bh2 Bg4 Nc3 Bf3 Bh3 f1N Nd5 Ng3 Nc7 Nh5 Ne8 Ng3 Ba5 Qf1 Bg4 Qh3 Bh5 Bg2 Nf3 Nh6 Nd2 Nc6 Rf1 Ng4 Rf5 Nge5 Kh6 Ke6 f7 Nf1 g8B Ne3 Kg7 N3c4 Rb1 Qb3 f8Q+ Kd7 Bd5 Na3 Bc4 Qb5 Bd3 Bh3 Qf7 e3 Qc4 Bg4 Qa4 Ke6 Bc3 Nec4 Bf6 N4e5 Ne4 Bf3 Bd2 Bh1 Ba5 Rf8 N8d6 Rd8 Nd2 Bd5 Ne8 Bc4 Rbf1 Rd5 R1f3 Qb3 Rf2 Ba6 Rf1 Qb5
3r1nnB/2b4k/1q2R2b/N1B1pNq1/BBbPPpQr/1P2rP1q/B7/4K1R1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 a5 g4 h5 b6 f5 f3 Kf7 b3 Kg7 b7 c5 d6 h3 g5 h2 g6 a4 d7 a3 Bb5 a2 Ba3 c4 Ne2 h4 Bb4 c3 Na3 c2 Nd4 c1Q Rg1 h1R Nc4 h3 Ba4 h2 Na5 Qb6 d8B Nd7 b8B Ba6 B8d6 Rh4 Bdc5 Bc4 d3 Kh6 g7 Qg5 Bc7 e6 Be5 f4 Nf5+ Kh7 d4 Rd8 Rc1 a1B Qe2 Bb2 Qg2 Ba3 Qg4 Bd6 Bf6 e5 Rc2 Nf8 Rg2 Bc7 Rg3 Nh6 g8B+ Kg6 Be6 Kh7 Bh8 Ng8 Bed7 Qgg6 Bdb5 Qg5 Rf1 Rg1 Ba6 Rg2 Rg1 h1Q B6b5 Qh3 Ba6 Bf7 Bd3 Bc4 Bb1 Rc2 Ba2 Rc3 Qh5+ Qgh6 Rg6 Rd3 Qg4 Re3+ Kd1 Qg5 Re6 Qb5 Be1 Ng6 Ba7 Bf8 Bc5 Qb6 Beb4 Bh6 Kd2 Nf8 Kd1 Rc3 Ke1 Re3+
2nnK2k/1QB1PB2/1B2NRbn/3pp1B1/1P1P4/5r2/bq1rPbp1/1B2NR1q w - - 0 1 illegal: No proof kernel
4b1qb/4BbBN/2Q2p2/1qPn1RBk/P1p5/2P2Pp1/r2BB2r/RK1nq2N w - - 0 1 illegal: No proof kernel
3N2NB/1Q1Np2R/6P1/Nrb2bpR/p2nP2b/rn2K1Pk/1q2P2q/1Br4N w - - 0 1 illegal: No proof kernel
r1bq2R1/2n1k2p/2P2r2/2p1p1Bb/6NP/QnP1q1bN/NP4NK/1qN1RB2 w - - 0 1 illegal: No proof kernel
B1r1N1q1/2rpk3/n2N3Q/1p4b1/3Pn1Nb/1PPbPR1p/1B2KR1N/4N1qr w - - 0 1 illegal: No proof kernel
r4rn1/6Bn/q1Pnnp2/pPp3RR/1QPb1kN1/1BK5/5P1N/1b1BBn1B w - - 0 1 illegal: No proof kernel
2BB3R/bP1b4/r1NQn3/3pBkq1/2bKRn2/3P1pBn/1Pr2PpN/1B1b4 w - - 0 1 illegal: No proof kernel
b1k1rqBn/Q1br1N2/R6B/1BpK1n1p/B2p2BP/RPPb2b1/2P5/2r1N3 w - - 0 1 illegal: No possible last move
1N1r1b2/1BPn1N2/2K1k3/P1p1p2n/2n2RRB/q1P1b2N/2Q1Ppb1/2rn1N1N w - - 0 1 illegal: No possible last move, all moves rejected
k2NN3/4Rn1B/p1p1n1pB/bbBqQ1B1/1R3n2/nr3PP1/P1r1P3/4bB1K w - - 0 1 illegal: No proof kernel
5bb1/pk1n1qr1/1BN1B3/PBnN1pPp/2b3qR/2b2P1P/3nR2B/1K3QB1 w - - 0 1 illegal: No proof kernel
b7/1p1pq3/3P1rnb/4RR1p/rbBBNP2/b6k/NPN1NQ1P/1bK2b1N w - - 0 1 illegal: Other
bbBkn3/pB2p1Nr/2Pnrp2/rB1pBP1R/3P2N1/5nPK/3q3B/3RQ3 w - - 0 1 illegal: No proof kernel
2nNR1B1/p1qb1K1b/1kN1P3/1p5r/3N1b2/PPq2p1N/p3QP1B/N1rR2r1 w - - 0 1 illegal: Other
2qK4/B7/b2bPnpR/2p1BRn1/k2pnpP1/1r1N1P2/B2PQnnB/1BN5 w - - 0 1 illegal: No proof kernel
2qNBnB1/2k2p1b/2p1qP1R/1Qp1Kp1P/1rB1B2p/2P2p2/3BNn1P/1r1R4 w - - 0 1 illegal: Other
1q1q3q/bBQnPNP1/1R1P2n1/1P1bBB1K/1rb1N2B/nk6/2R5/R7 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 axb6 d5 f4 exf4 a4 Be7 c4 Ra5 cxd5 Rb5 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 e4 Kc5 g4 Kb4 d4 c5 g6 h5 g7 f5 g5 c4 e5 h4 g6 h3 d6 c3 d7 h2 d5 c2 b7 Be7 e6 Bc5 d6 Kb3 Nc3 Ba7 Bg2 Ne7 g8B Rh4 g7 Ng6 Bb2 Rg4 Qf1 c1Q Ne4 Qcc7 Nh3 Qb6 Rg1 h1Q Nhg5 Qh8 Qc1 Rh4 Be5 Qbc7 Nf7 Rg4 Ke2 f3+ Kd1 f2 Ke2 f1B+ Kf3 f4 Bh7 Qb6 Qc7 Bc4 Rgc1 Bd5 Bh1 Bc4 Rc2 Rh4 Kg2 f3+ Kg3 f2 Bg2 f1N+ Kf3 Rh3+ Kg4 Nd2 Bh1 Rc3 Kh5 Nb1 Bg2 Na3 Bh1 Qe7 d8B Nd7 b8R Bb7 Bg2 Qef8 Bh4 Bbd5 e7 Qa5 Rb6 Qb8 Bh3 Rd3 Be6 Rd4 Bf5 Ndf8 Bc8 Nd7 Bb7 Qa6 Ba8 Qac8 Bb7 Qcd8 Kg4 Nf4 Bf5 Ng6 Kg5 Bd3 Kg4 Rb4 Kg5 B3c4 Kg4 Qhe8 Kh5 Qh8+
n1rR4/RrP5/1nR2Kr1/Pk4rN/3rbRQP/2P4N/2Bn3N/1B1q4 w - - 0 1 legal: proof: f4 h5 b4 c5 g4 e5 gxh5 f5 d4 a5 dxc5 b5 e4 Bd6 exf5 e4 bxa5 b4 a4 Be5 Ba3 bxa3 fxe5 Kf8 Nc3 Kf7 Nb1 Ke8 Kd2 g5 Ke3 d5 Kd4 Kd7 h4 Kc6 f6 g4 h6 e3 a6 e2 a7 e1N e6 g3 Ke5 g2 h7 d4 e7 d3 e8N d2 f7 a2 f8R Qa5 Nh3 g1R Qg4 d1R Bd3 Bb7 Ng7 Ne7 Kf6 Nf3 Nh5 Nc8 Nd2 Rg8 h8R Rg5 Nf1 Na6 Nh2 Qd2 c3 Nb6 Bc2 Qd7 Rc8+ Nc7 Rhd8 Nd2 Bb1 Rb8 a8B Rg2 Re1 Qd5 a5 Kb5 Re7 Qb3 Rf7 Be4 c6 Qc2 Bb7 Nca8 Rcc7 Rgg1 Bc8 Qc1 Bf5 Rc8 Ra7 Qc2 c7 Qd3 Bc2 Qf1 Rc1 a1R Rff8 Ra4 Rb1+ Rb4 Rb3 Rb1 Rf7 Rb2 Rff8 Qd1 Bb1 Bc6 Bfc2 Be4 Rf7 Ka4 Rff8 Rd4 Rb5+ Rb3 Rc5 Rg3 Rc6 Kb5 Ke7 Rg6 Rf4 Rbb4 Qd7 R3g5 Qg4 Rb2 Rcf6 Nd5+ Ke6 Kc5 Kf7 Rb7 Re6 Ndb6 Rc6+ Kb5 Ke7 Rg7+ Kf6 R7g6+
1B3r2/n2R4/4B3/1NbBb3/Kq1P1r1Q/1PR1N1bb/1RrRp1PP/2k5 w - - 0 1 legal: proof: c4 d5 cxd5 b5 d4 g5 f4 h5 fxg5 h4 e4 h3 a4 Qd7 axb5 Qf5 Qh5 Nd7 Qh7 Nb6 d6 Nd5 exd5 Qd7 Qxh3 Qd8 Qd3 Be6 Qh7 Bc8 Kd1 Kd7 Kc2 f5 Kb3 c5 b6 a5 g6 f4 g7 e5 b7 a4+ Ka3 f3 b8Q c4 b3 f2 Bh6 c3 Qd3 e4 Ra2 e3 Ne2 c2 Qc3 c1B+ Rb2 Qc7 Qa7 Ne7 g8B Nc6 Qb8 Na7 Ng3 Qc4 Bf4 Rh4 Be2 f1R Nf5 Rf2 Bg4 Rc2 Qcb4 e2 Nc3 Be3 Bg3 Bf4 Rd1 Be5 Nb5 Be7 Bf3 Rf4 Ne3 Bf8 Rd2 Be7 Ka2 a3 Qb6 Bb7 Q6a5 Raf8 Bf7 Bc8 Be6+ Ke8 Qa6 Kd8 d7 Bc5 Qb6+ Ke7 d8R Kf6 Rd7 Kg5 Rc7 Bd7 d6 Bc8 Bfd5 Bd7 Bg8 Bg4 d7 Bh3 Nd1 Kg4 d8R Kg5 Rdd7 Kg4 Ka1 a2 Qh6 Kf5 Bde6+ Ke4 Qh4 Bcd6 Nf2+ Ke3 Bd5 Bc5 Bge6 Rc3 Rb1 Rc1 Kb2 a1B+ Ka3 Bc3 Rbb2 Rc2 Rc8 R8f5 Ka4 Rf8 Rd1 Be1 Rc6 Rd2 Ng4+ Kd3 Ne3 Bf2 Ra1 Rc2 Raa2 Be1 Nc3 Kd2 Nb5+ Kc1 Rc8 Rc3 Rd2 Rc2 Rb2 Rf3 Bf4 Bg3 Rcc7 Bg7 Bd6 B7e5 Rc8 Rf1 Bb8 R1f4 Bf3 Qd5 Qg5 Bcd6 Rc3 Bc5 Qh4 Qc4 Bfd5 Qxb4#
Rn6/5r1B/pB1Q1BB1/Knq1PR1R/N1r1PN2/6q1/r1kPP1r1/6b1 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 g5 h4 d5 a4 e5 fxe5 Bf5 axb5 gxh4 Nh3 d4 Ng1 d3 cxd3 Be4 dxe4 Qb6 Nf3 Qa5 Ng1 Qd8 g4 Kd7 g5 f5 g6 h5 g7 f4 Nh3 f3 Qa4 f2+ Kd1 Qg5 Kc2 Qg3 Nc3 Nh6 Kb3 Nf5 g8B Nd6 Bg2 f1R Qa3 Rf2 Ka4 Be7 Rh2 Rh7 c6+ Kc7 Bb2 Bg5 Rd1 Kb6 c7 Rff7 Ba1 Bh6 Rf1 Be3 Ng5 Rf2 Bf3 Rg7 Bg4 Rg2 Bf5 Rf7 Rf3 h3 Bb2 h4 Bg6 Qf2 Rf5 Qf4 Rh1 h2 Nh3 Qg3 B8h7 Bf2 Nf4 Be3 Qa1 Kc5 Ba3+ Kc4 Bc5 Bd4 Qa3 Be3 Bb6 Bf2 Rc1 h1Q Rg1 Qhh2 Rh1 Qg1 Rh2 h3 Rh1 h2 c8R+ Nc6 Bd8 a6 b6 Nb5 b7 Ra7 b8B Rac7 Qd6 Qc1 Rg1 h1R Ba7 Bc5 Ra8 Nb8 Ka5 Kb3 Bg5 Qa3+ Na4 Kc2 Ra1 Be3 Bf6 Rc4 Rd1 Qc5 Bb6 Rf1 Ra1 Rf3 Rh1 Bg1 Rh3 Ra3 Rhh5 Ra2
1R1BBqN1/n1Nr4/4rQPB/1r1n1n2/n1P1P1p1/1N1k2K1/3P2n1/N4R2 w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 exf4 c3 d5 b3 d4 cxd4 c5 Ra5 c4 bxc4 Bg4 Ra1 Bc8 g3 f5 Ra3 g6 Ra1 f3 h3 f4 h4 g5 h5 Bd6 Na3 Bf5 Nb1 Bg6 hxg6 Qc8 Qa4 f2+ Kd1 f3 Kc2 Bf4 gxf4 Qd8 Kc3 Kf8 Qd1 Ke7 Kc2 Ke8 Kd3 Ke7 Ke4 Ke6 b6 a5 f5+ Kf6 d5 h5 d6 h4 d7 a4 b7 h3 Na3 h2 Nc2 a3 Bh3 f1R Rb1 a2 Ba3 a1N Bf8 f2 Kf3 Ke5 e4 Rh5 f6 Nc6 b8N Ra6 f7 Nf6 Ne2 Nd5 Nc1 Na7 Bh6 Re6 f8N Nb3 Na6 Nc5 Kg3 Na4 Na1 Kd4 Ncb3+ Kd3 Nh7 Qf8 Bf5 g4 d8B Rg5 Nf6 Rh5 Rg1 Rg5 Ng8 h1N+ Kh4 Ng3 Nc7 Re5 Bc8 Re6 Bd7 Rf5 Bc6 Rf7 Be8 Rd7 Rh1 Re1 Rb2 f1N Qf3+ Nfe3 Rf1 Rb1 Qf6 Ngf5+ Kg5 Nfe7 Kh4 Ng2+ Kg3 Ngf4 Na5 Ng2 Rb8 Rb5 N5b3 Nf5+
n1q1N3/1P1PNN2/4K3/1Q2BRb1/2b1P1R1/6r1/1PqR1rqk/1R1r1Bbn w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 h5 d4 e5 g4 exf4 gxh5 c5 dxc5 Bd7 a4 Be6 axb5 Bc8 Kf2 Kd7 Kf3 f5 h4 a5 e4 g5 c6+ Kd6 c7 Ke5 d6 g4+ Kf2 a4 b6 f3 Kg3 a3 d7 f2 h6 a2 h5 f4+ Kg2 g3 Kh3 f3 Kg4 g2 h7 Ba6 c8N Bc4 b7 Ra3 h6 Ne7 Rh4 Nf5 Qa4 Na6 Nd6 Nc7 Nh3 g1B Nc3 Na8 Ng5 Ng3 Ne8 Nh1 Nd5 Be7 Rb1 a1Q Qb5 Rf8 h8R Qc8 h7 Rb3 Rh2 Qa4 Rg8 Rc3 h8R Qc2 R8h5 Rd3 Bh3 f1R Rd2 Rd1 Bf1 f2 Rg7 Bc5 Ne7 Rg3+ Kh4 Kf4 Nf7 Kf3 Rg4 Be3 Rhd5 Bf4 Kh5 Bg5 Kg6 Bb3 Kf5 Bc4 Bh3 f1Q Ke6 Qe2 Bf1 Qf2 Re2 Qh2 Bf4 Qg2 Be5 Bh4 Rg7 Bg5 Rd2 Kg4 Rg6 Kh3 Rg7 Bh4 Rg4 Bg5 Nh6 Rf2 Nf7 Bd3 Bg7 Be2 Rf5 Kh2 Be5 Bc4+
3Nbn2/2rr2n1/B1r1Qr2/q3R1NP/2B3b1/1RPqN1kP/RR2b1P1/5K2 w - - 0 1 illegal: No possible last move, all moves rejected
R2R1n1R/1Q1B3P/2rr4/b1B5/1nrb2P1/2B1bR1P/1r3qP1/bk2K1NN w - - 0 1 illegal: No proof kernel
1Nnn1Bn1/4RPQ1/P3q1r1/2B1q1kB/qR1P3R/r2P2B1/n1NK4/2q4b w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 f4 h5 gxh5 d5 c3 d4 cxd4 e5 exf5 e4 Qb3 Bd6 Qd1 Be5 fxe5 Ra7 Ne2 Ra5 Ng1 Ra8 h4 Ke7 a4 g5 h6 c5 e6 Kf6 e7 b5 e8R g4 h7 g3 d3 e3 h5 c4 h6 c3 a5 e2 Ra4 c2 Nc3 g2 Be3 c1N Nf3 g1Q Bf2 b3 Bg3 b4 Nb5 b2 Ne5 b1Q Rh4 b3 Re7 b2 Rb4 Na2 Nc6 Qd5 Na3 Kg5 f6 Qa1 f7 b1N Nc2 Na3 Kd2 Qe5 Bh3 Bf5 Bg4 Nb5 Bh5 Be4 Qe1 Qh1 Qg1 Nd6 Qg2 Nc8 Qg1 Nd7 Nb8 Nc5 Qg2 Ne6 a6 Nd8 Qg1 Qh3 Qg2 Qhe6 Qg1 Bh1 Qg2 Nf6 Qg1 Rf8 h8B Rg8 h7 Rg6 Bg7 Ng8 h8B Ra7 Qg2 Rc7 Bf8 Rc3 Bhg7 Ra3 Qg1 Qb5 B7e5 Qa4 Bd6 Qf1 Qg2 Qff6 Bc5 Qfe5 Qe4 Rh6 Qh7 Rg6 Ne3 Rb3 Qg7 e1Q+ Kc2 Qa1 Kd2 Ra3 Nc2 Qc1#
5B2/3NpBB1/BKr1rqP1/1P2N3/1b2P2N/nQ1PRqk1/8/nb1rq2R w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 h4 Qd6 g4 Qb4 g6 Qd6 h5 Qb6 g7 Qc6 g5 Qg6 hxg6 Kd8 Ra5 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 b4 c5+ Kc4 Ke5 e3 f5 d6 a5 b6 f4 Kb5 a4 b7 h4 d7 h3 d8B h2 Na3 c4 Bb2+ c3 Kb6 f3 b5 f2 Bg2 f1Q Bf3 Nc6 b8N Nb4 Bc6 Qf3 Ne2 Bf5 Bc1 c2 Ng1 Nf6 g8B Rh6 g7 Ne8 Bf7 Nd6 g8Q Re6 g6 Bh6 Bb7 Ra7 Bc8 Rd7 Ba6 Bd3 e4 Kf4 Qh8 Kg3 Nc4 a3 Qc3 a2 Bc7 Bf4 Rb1 a1Q Rb3 Bh6 Bb2 c1R Ne5 Bb1 Qc6 Nc2 Re3 Rd8 Nbd7 Nc4+ Ka7 N4a3 Kb6 Bg7 Bc3 Qb2 Bd4 Na1 Qb3 Rd1 d3 Rc8 Bd6 Bh6 Bb4 Bf4 Bbc3 Bh6 Re1 Bd2 Be3 Rc7 Bh6 Rc8 Bd4 Bb4 Bf8 Qc3 Re3 Qb2 Qd6 Rcc1 Qc6 Qf2 Re2 Qf6 Ngf3 Qe3 Nh4 Qef3 Rhe1 h1Q Re3 Qf1 Bb2 Qe2 Rh1 Qe1 Nc4 Qf5 Bbg7 Qf6 Nce5 Rcxc6+
3Rbq2/PP6/4B1R1/R1r1b1QB/1nP1nrqB/q6k/1R1p1PN1/3KNn2 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 e4 c5 exf5 b4 d4 cxd4 a3 Qb6 axb4 Qc7 b5 Qd8 c4 Kf7 g4 e5 a6 d5 f6 Ke6 a7 h5 b6 e4 g6 h4 b7 d3 g7 h3 g5 Kf5 g6 d2+ Ke2 Kg4 f7 d4 Nc3 h2 Na4 e3 Qc2 Nf6 g8B Rh4 g7 Bd6 f8R Be5 Bf7 Ne4 Nh3 Nc6 Nf4 Nb4 Ng2 Kh3 g8R Bd7 Kd1 Rf4 Rg6 Rc8 Nb2 Be8 Nd3 Rc5 Nde1 Qa5 Be2 Qa3 Rf1 h1N Bh5 Nhg3 Rg1 Nf1 Bd5 Ba4 Rd8 Be8 Be6+ Rf5 Qb3 Ng5 Rb8 Ng3 Bb2 Bd6 Rd8 N5e4 Nd3 Bb8 Re1 Nf1 Nc1 Bf4 Ke2 d3+ Kf3 d1Q+ Re2 Nc2 Qc3 Nb4 Qe5 Bh2+ Qf4 Bg3 Bf6 Bh2 Rb1 Bg3 Rb3 Na2 Rb5 Nb4 Ra5 Bh2 Bh4 d2 Nd3 Qb1 Re1 e2 Rd1 Qba1 Re1 Qh8 Rb1 e1Q Rb2 Qea1 Ke2 Qf8 Qh6 Be5 Nde1 Qg3 Qe3 Qa3 Qg5 Qf4 Kd1 Qfg3 Bf7 Rf4 Be6+ Qg4+
3rk1B1/n2p4/6q1/2QP1n1n/1PP2RB1/2K1NR2/N2B1RP1/bbnr1r1R w - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 f5 exf5 b5 b4 Bg7 a3 Bc3 bxc5 b4 Bb5 b3 Bf1 Bb4 axb4 Ba6 Nc3 Bb7 Nb1 Bc8 d4 e5 Kd2 a5 f4 h5 c4 b2 g6 h4 g7 h3 f6 e4 c6 h2 c7 e3+ Kc3 e2 f5 e1N Be2 a4 Na3 Nh6 g8B Nc6 Bd2 Bb7 c8Q Nd3 Bg4 Na7 Qc5 Be4 d5 Qb6 Nc2 a3 Ne2 a2 Ne3 Rd8 Nc1 Rh7 Rf1 h1N Rf4 Ng3 Rb1 a1R Na2 Re7 Qh1 Nh5 f7+ Kf8 Rd1 Nc1 Qg1 Bb1 Rf3 Kg7 f8R Rf7 f6+ Kg6 Rdf1 Nf5 R1f2 Qc6 Re8 Rf8 f7 Kg7 Re4 Qg6 Ref4 Kf6 Qa5 Ke7 Rh3 Rc8 Rh1 Rfd8 f8R Ra8 Rf6 Ke8 Qc5 Rab8 R2f3 Rb6 Nd1 Re6 Rf2 Re1 Ne3 Rd1 R4f3 Nd6 R6f4 Nf5 Qf1 Nb3 Qd4 Bc2 Qfd3 Rf1 Qc5 Rad1 Rd4 Nc1 Rdf4 Ba4 Qb1 Bc2 Qa1 Be4 Qc8 Bb1 Qc5 bxa1B#
6R1/n2qNRnp/2b2P1P/qNNr3Q/1kn2rPb/4R1KB/B5Pn/4N3 w - - 0 1 legal: proof: b3 c5 e3 a5 Nh3 g5 Ke2 e5 Ng1 f5 Ba3 g4 Bb4 e4 Ke1 c4 bxc4 g3 fxg3 Bd6 Qg4 Bf4 Qd1 Nc6 d4 Ne5 dxe5 axb4 Qc1 Bg5 Qd1 f4 Qd5 f3 Qd1 Bf4 exf4 Qf6 Kf2 Qg5 Ke1 Qd8 Kf2 Ke7 a4 b5 h4 d5 a5 d4 c5 d3 c4 b3 a6 b4 a7 b2 h5 d2 e6 b3 f5 Bd7 h6 Bc6 Nc3 b1N Nb5 b2 Ra3 Nf6 Re3 Qa5 Be2 Rag8 a8N Nh5 Nb6 Rg5 Nd7 Na3 Bd3 Rg4 Bb1 Ng7 Ba2 b1N Rh4 Rg5 Rf4 Nc3 Qe2 Rf8 Qd1 Bb7 c6 Rf6 c5 Nc4 c7 Bc6 Qe2 d1Q c8B Rf8 Nb8 Qd7 Na6 Kf6 e7 Ke5 e8R+ Kd5 Rd8 Rf6 Rg8 Rh5 Kf1 f2 Nf3 Rf7 Ne1 Rf8 Na3 Nb5 Qg4 Rg5 Qh5 Na7 Nb5 Rf7 Ke2 f1N Kf2 Nh2 Rff3 Ba8 c6 Rf8 c7 Bc6 Nb8 Kc5 Rf4 Kb4 Na6+ Ka4 Nc5+ Kb4 Ba6 Rf7 c8N Rf8 Ne7 Rf7 Rd3 Rf8 Bc8 e3+ Kg1 e2 Kf2 Rg6 Re3 Rd6 Rg4 Rd5 f6 Re8 Rf8 Rd8 Rf7 Re8 Nf5 Re4 Ne7 Rf4+ Kg1 Ne6 Rg8 Ng7 Kh1 Qdd8 Bh3 Qd7 Nf3 e1B g4 Bh4 Ne1 Bg5 Kg1 Rfd4 Kf2 Rf4+ Kg3 Bh4+
5R2/1r2B3/4Q2q/nBN1pKr1/RP1qP3/1RNr1kr1/P1b2Pn1/1RN2n2 w - - 0 1 legal: proof: g4 a5 c4 d5 cxd5 g5 h4 f5 hxg5 fxg4 Na3 b5 Nb1 b4 Qb3 a4 Qd1 a3 bxa3 Bb7 Rh4 Ba6 Rh1 Bc8 Bh3 b3 Bf1 Bg7 Bb2 Bc3 Bc1 Bb4 axb4 Ra5 Rh2 Ra4 Rh1 Ra8 d4 Kd7 Kd2 Kd6 Kd3 h5 Ke4 e5 e3 c5 g6 h4 g7 b2 Bc4 h3 Bb3 h2 Qf3 c4 Qg3 c3 Qg2 c2 Qh3 g3 Bd2 c1R Ne2 g2 Nbc3 g1R Rb1 Ra7 Bc4 Rb7 Bb5 Rcd1 Nc1 Ne7 g8R Nf5 Rf8 Rg5 Re1 Nh4 Qe6+ Kc7 Rf1 Ng2 d6+ Kb6 d7+ Nc6 d5 h1Q d6 Na5 Re1 Rhg8 Re2 Rg3 Kf5 Qh6 Re1 Qdh4 d8R Qd4 d7+ Kc7 Rde8 R8g7 d8N Bd7 Bd3 Ba4 Bb5 R7g4 Rh1 Bb3 Rh3 Rg7 Qc8+ Kd6 Ne6 Rg8 Nc5 Bc2+ N3e4+ Kd5 Re6 Nc4 Ra6 R8g7 Ra4 Na5 Bc3 Rd3 Bd2 R7g6 Nc3+ Kd6 Ra1 b1N Qe8 Na3 Rb1 N3c4 Be1 Nd2 e4 Nf1 Qc6+ Ke7 Bd2 R6g4 Rb8 Kf7 Rf8+ Kg7 Bg5 Kh7 Bf6 Rg5+ Ke6 Kg6 Be7 Qh4 Qb6 Kh5 Qa6 Kg4 Kf6 Kf3 Qe6 Rg8+ Kf5 Qh6 Bc4 Rd1 Rh2 R3g4 Bb5 R4g6 Rb3 Rg3 N1e2 Rd3 Rh1 Nh2 Rhb1 Nf1 Nc1 R8g5+
1B1q2qk/1P1KB1p1/3R1N1P/2B1P1qb/4PQ2/2n2N2/2r1R3/Bnr1n1nR w - - 0 1 legal: proof: f4 b5 c4 h5 a4 f5 axb5 e5 g3 d5 cxd5 Qg5 Bh3 Qd8 Bg4 hxg4 Na3 Be7 Nb1 Bg5 fxe5 f4 Kf2 f3 Ke1 Bf4 gxf4 Rh4 Ra5 Rh6 Ra1 Rh8 Kf2 Kf7 Ke3 a5 Kd4 f2 Kc5 f1Q h4 g3 b4 c6 e4 g2 d4 a4 h5 a3 b6 a2 b5 Qc7 b7 Ra6 h6 Ra7 b6 Ne7 f5 Kg8 d6 Nd5 d7 Nc3 f6 Qd8 Kd6 c5 d5 c4 Nf3 g1N Qd2 Nc6 b8B Rc7 b7 Nb4 Bb2 Nd3 Qf4 Ne1 f7+ Kh7 f8B Qg2 Qf6 Qg5 Qf4 Rg8 Ke6 Kh8 Bc5 Rf8 d6 Rf5 Nbd2 Nb1 Nf1 c3 Ne3 c2 Nd5 c1N Nf6 Nce2 Rh2 Nec3 Re2 Qg8+ Ke7 Rc6 d8R Be6 d7 Bf7 Nd2 Bh5 Nf3 Na3 Rb1 a1Q Rd1 Qc1 Ba1 Nab1 Rd6 Qd2 Rf8 Qg3 d8B Qg5 Kd7 Rc8 Be7 Qd4 Qg3 Rf4 Rd8 Rh4 Qf4 Rh2 Re3 Rc2 Re2 Rc6 Rc8 Ra6 Rc6 Raa2 Rb6 Rc1 Rbb2 Qd3 Rh2 Qd4 Rbe2 Rac2 Rh1 Qdd5 Bd4 Qa5 Bc5 Qad8+
n1R1b2N/kP1r1Pr1/NnBq1rB1/p1Pn3B/KR6/NN1P4/Q1r5/7q w - - 0 1 legal: proof: c4 c5 h4 b5 b4 f5 e4 d5 exf5 g5 hxg5 d4 Bb2 Bg7 a3 Be5 Bc3 dxc3 Nf3 Bc7 Ng1 Ba5 bxc5 b4 Ra2 b3 Ra1 Bb4 axb4 Qd3 Nf3 Qd7 Ng1 Qd8 g4 Kd7 f4 Kc6 d3 Kb7 c6+ Kb6 c7 h5 f6 e5 b5 a5 c5+ Ka7 f5 e4 b6+ Ka6 g6 c2 Kd2 c1N Kc3 h4 g5 e3 f7 h3 f8N h2 g7 b2 g6 e2 f6 e1R b7 Re4 f7 Bd7 c8B Na2+ Kb3 Bc6 Be2 Rh6 Qc2 Rh3 Ne6 Nf6 g8N Nbd7 g7 Ne8 Nf3 Rh8 Nfd2 Rh7 Ne7 Rc4 g8B Nd6 Na3 Nc3 Nc7+ Ka7 Ng6 Nb6 Na6 Rg7 Nh8 Ncd5 Bh7 Be8 Bh5 b1R+ Qb2 Re1 Bd7 Rf1 B7g6 Rc2 Qa2 Ndc4 Rb1 Rf6 Bc6 Qd6 Rhe1 h1Q Rb2 Nd7 Ka4 Rd8 Rb4 N7b6+ Kb3 Na8 Ka4 Re6 Nb3 Rd7 Re4 Rf6 Re7 Rd8 Rc7 Rd7 Rc8 Ncb6+
q1R5/3RrRN1/nb1Q1b1n/1rNRpP2/2PB1BNp/2nPKP2/8/k2b4 w - - 0 1 legal: proof: b4 b5 h4 d5 e4 f5 exf5 g5 hxg5 c5 a4 d4 axb5 Nf6 Bc4 d3 Bb3 Ng8 bxc5 Nf6 c3 Ng8 Bc2 dxc2 Ke2 Kf7 g4 h5 c6 a5 g6+ Kf6 g7 Ke5 b6 h4 b7 e6 f3 a4 c4 Kd4 g5 e5 c7 a3 g6 a2 Nc3 Bd6 Na4 Qf6 Nh3 Bd7 c8R Bc6 Ng5 Nh6 g8N Be8 g7 Ra5 Nc5 Qf8 Nf6 Na6 g8R Rh7 b8B Re7 Rg7 Ba4 Rf7 Rb5 Ng4 Bc7 Rb1 a1B Ba7 Bd8 Kf2 Bc3 Re1 Bca5 Re2 Rb8 Rb7 Bab6 Re3 Qe8 Ra3 Bb3 Ra5 Qc6 Rd7+ Qd5 d3 Kc3 Ne6 Qa8 Bf4 Kb2 Ke3 c1N Qg1 Na2 Ng7 Bd1 Qe1 Ka1 Qb4 Bbc7 Qb6 Rb7 Qd6 Rb5 Na4 Nc3 Bd4 Rb2 Rd5 Rb5 Nc5 Bb6 Bg5 Re6 Bf4 Bf6 Rdc7 Re8 Rcd7 Re7
bK1nR3/1N5B/nP5k/rb3B1r/1P2RN2/1n1N1p2/rpQ1P2P/Bq2B3 w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 fxe5 c5 g4 c4 gxh5 Be7 Ra5 Bc5 Ra1 Bf8 d4 Qa5+ b4 Bc5 dxc5 Qa4 c6 Qa6 c3 Qb6 Qb3 cxb3 c4 Qc7 c5 Qd8 Kf2 Kf8 Kg3 a5 Kf4 d5 e6 g5+ Ke5 Kg7 c7 f5 e7 f4 e8N+ Kh6 c6 a4 b6 a3 Bg2 g4 Be4 g3 Nf3 g2 Nc3 g1R Bd2 d4 Bh7 a2 Nd5 d3 Be1 d2 Nd6 d1B Nb7 Nd7+ Kd6 Ra4 Ne5 f3 Nd3 Ra5 N5f4 Ne7 Rc1 a1N Rc4 Rgg5 Re4 Ra2 Rg1 Rga5 Rg8 Bc2 Re8 Nc5+ Ke5 Bf5 c8B Bd7 Kd6 Na6 c7 Bb5+ Bd7 Nc6 c8Q Qg5 Bdf5 Qg1 Kd7 Nd8+ Qc6+ Kg5 Kc8 Bb1 h6 Qh1 Bhg6 Qg1 h7 Kh6 Nb2 B1d3 Qc2 Bdc4 Nbd3 Bd5 Nbc5 Ba8 Nb7 Rg8 h8B Qf1 Bf2 Qb1 Bh7 Rg5 Be1 Rh5 Qc5 Nc2 Ba1 b2 Qc7 Nd4 Qc2 Nc5 Kc7 Ndb3 Kb8 Na6+
3q1k1n/1B1nrrb1/3N1B1p/3R1r1Q/npK3PP/2P5/2N1PNqB/N6R w - - 0 1 legal: proof: b4 c5 d4 e5 a4 b5 axb5 cxb4 dxe5 g5 f4 d6 fxg5 Ke7 e6 Bd7 exd7 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 a5 Kd3 f5 g4 d5 h4 h6 c3 d4 g6 a4 b6 f4 b7 f3 g7 a3 Bf4 a2 Na3 f2 Bg2 f1R Kc4 d3 Nc2 d2 Nh3 Ra5 Nf2 Rd5 Bh2 Rh7 Be4 Na6 b8N Rf5 Bb7 Nc5 Nc6+ Kf7 Rc1 a1Q Na5 Ne7 g8N Bg7 Nf6 Ng6 N6e4 Kf8 Nb3 Qaa8 Nd6 Nh8 Nba1 Rf7 Rb1 Re7 Qc1 d1N Qg5 Rf7 Qh5 Nb2+ Kd5 Re7 Rd1 Nba4 Kc4 Rf7 Rd5 Re7 Nd3 Rf5 Nf2 Ref7 Bc8 Qc6 Bb7 Re7 Re5 Qg2 Rd5 Qc7 d8B Nd7+ Kd3 Ref7 Bf6 Qd8 Kc4 Re7 Bfe5 Bf6 Bd4 Rhf7 Bde5 Bg7 Bd4 Ndc5 Bf6 Nd7
3N2RR/n2nB2R/5ppN/PrQP1qn1/1R4q1/2r2P1B/qNk1P3/2b2K2 w - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 a6 cxb5 a5 b4 axb4 d3 e5 Na3 e4 dxe4 Ra6 Nb1 Ra8 Bh6 d5 Bc1 d4 Ba3 Bb7 Bc1 Bd5 exd5 Qh4 Bb2 Qf6 Bc1 Qd8 h4 Ke7 a4 Kf6 f3 Ke5 h6 c5 b6 g6 h7 c4 a5 d3 h5 Kd4 h6 b3 b7 c3 Kf2 f6 Bb2 d2 Ra3 Qd7 Bh3 Qf5 Rh2 Nd7 b8R Ne7 Qc1 d1N+ Kf1 Nc6 Nd2 Na7 Nc4 Nf2 Ra4 Ne4 Rab4 Ng5 Ba3 c2 Nb2+ Kc3 Rc8+ Bc5 Rg8 Rb8 Qe3+ Qd3 Qe7 Be3 Qc5+ Qc4 Rc8 Re8 h8R Bc1 h7 Rb5 Rg8 Re3 h8N Kd2 Nf7 Qg4 Nh6 Rc3 Rh8 Qf5 Rcg8 Qg4 Bg2 Qf5 Nh3 Qg4 Nf4 Qf5 Nd1 b2 Ne6 b1Q Nd8 Qa2 Rhh4 Bb2 Rh5 c1Q Bh3 Kc2 Rh7 Qcb1 Rhh4 Bc1 Nb2 Qe4 Rhh8 Qe5 Rbc4 Ne6 Ng4 Qg5 Qb4 Qf4 R4h7 Ng5 Nh6 Kd2 Qf8 Qbf5 Bd6 Nb6 Rb4 Nd7 Qe7 Qd4 Qe3+ Kc2 Be7 Qdc4 Qc5 Qcg4
1b1k1KN1/5RP1/2R1Pp2/8/B3q1p1/3n2R1/qnQqPB1P/1bNnB1Rr w - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 axb5 e5 dxe5 Qf6 c4 Qh4 cxd5 Qd8 f4 a5 Qb3 g5 Qc2 Ra6 Qb3 Rg6 Qc2 hxg4 Qd1 g3 Qa4 g4 Qd1 Rg5 fxg5 Bd6 Qd4 Bc5 Qd1 Bf8 Kd2 c5 Kd3 g2 Ke4 a4 b4 f6 g6 c4 g7 c3 d6 c2 Kd5 a3 d7+ Ke7 b6 a2 b5 Nh6 b7 Qe8 d8R Nf7 e6 Na6 b8B Rh3 b6 Nc5 b7 Ng5 Nd2 Ra3 Ngf3 g1N Ne5 Qb5 Nb3 Ra8 Ba7 Qa4 b8R N1h3 Rd7+ Ke8 Nc6 Nf3 Rg1 Nd2 Bg2 Nc4 Rf7 Nb2 Rb6 Bd6 Bd2 c1Q Ne7 Ncd3 Ng8 Nhf2 Qc2 Bb7+ Rc6 Bb8 Be1 Nfd1 Baf2 Qd2 Nc1 Kd8 Bf3 Ra6 Rg3 Ra7 Rb1 a1Q Be4 Ba6 Bg6 Rc7 Kd6 Q1a2 Be4 Qd4+ Bd5 Qe4 Bb3 Bc8 Ba4 Bd7 Re7 Be8 Ra1 Bg6 Rd7+ Kc8 Ke7 Bh7 Kf8 Bf5 Rf7 Kd8 Ra6 Rc5 Rc6 Bh7 Rb1 Rf5 Bc5 Rf1 Bcf2 Rh1 Rg1 Nc4 Rb3 Ncb2 Ra3 Nc5 Rh3 Ncd3 Rhg3 Qeb4+ Re7 Ne5 Qc3 Bb1 Qc2 Qe4 Rf7 Ned3
1r1B4/1n2NKN1/P1N2BQ1/2qR2n1/k4n1b/pn1NpP1B/1PP1R3/3r2q1 w - - 0 1 legal: proof: e4 c5 g4 h5 gxh5 a5 d4 cxd4 a4 b5 axb5 f5 exf5 Ba6 bxa6 Qc8 Ke2 Qc7 Ke1 Qd8 Kd2 e5 Kd3 g5 Kc4 d5+ Kd3 Kd7 h4 Kc6 h6 Kb5 f6 a4 h7 g4 f7 a3 h5 g3 h6 g2 f3 Qc8 Nd2 Ka4 Rh3 Ne7 Nb3 Nec6 Ne2 g1Q Nf4 Nd7 Na5 Be7 f8N Bh4 Rh2 Nd8 Re2 Qc5 Bh3 Rb8 N8e6 Nb7 Ng7 Rhd8 h8N e4+ Kd2 d3 h7 d4 Nhg6 Qd5 h8B Ndc5 Nc6 Qdg5 Qf1 Rd7 Nge7 Nb3+ Kd1 d2 Nd3 Qc5 Qe1 Qf2 Qg1 Rdd8 Qg6 Qg1+ Re1 Rd5 Ke2 d1N Bg5 Ne3 Rad1 Ng2 Bf6 Na1 Kd2 Nf4 Re2 Rdd8 Ng8 Rd6 Bd8 Rd5 Nge7 Rd6 Kc1 Nb3+ Kb1 e3 Ka2 Qh1 Rg1 Rd7 Rg5 Qg1 Rd5 Rd6 Ne8 Rd7 Bf6 Rd6 Nf2 d3 Ng7 d2 Nd3 d1N Rg5 N3a5 Ndb4 Rd2 Nd3 Nf2 Rf5 Kb5 Rg5 Nc4 Kb3 Rd1 Kc3 Ka4 Rf5 Qa5+ Kd4 Ne4 Rd5 Ncd2 Ke5 Nb3 Kf5 Qc5 Ke5 Nh5 Ke6 Nf4+ Kf7 Ng5+
3kq1N1/1Pq1R2B/2Q1r1N1/b1r1P3/1r1N2r1/nP2B1p1/4Rp1P/1R2n1KR w - - 0 1 legal: proof: c4 b5 f4 d5 g4 c5 a4 h5 gxh5 e5 axb5 exf4 b6 Ba6 cxd5 c4 d3 c3 Ra3 Rh6 Ra1 Bc4 dxc4 Rh8 Kf2 f5 e4 g5 b3 a5 b7 c2 c5 g4 c6 f3 d6 g3+ Ke1 f4 h6 a4 e5 a3 c7 f2+ Ke2 a2 c8R f3+ Ke3 Ra6 h7 Nc6 Nd2 Nf6 Rc7 Rg8 h8N Rg4 Ng6 Nd7 Ne4 Nb4 Bd3 f1R Rb1 a1R Ne2 Nb6 Nd4 R1a4 Kd2 Qa8 d7+ Kd8 Nf6 Nc4+ Kc3 Bc5 Be3 c1Q+ Qc2 Na3 Ng8 Re6 Be4 Nd3 Bf5 Qb2+ Kd2 Bb6 Be4 Qa1 Qc6 Rc1 Bf5 Rc5 Be4 Nf4 Ke1 Nd3+ Kf1 Qc3 Kg1 Ne1 Nf4 Qca5 Bc2 Rb4 Bh7 Qb8 Nde2 Qaa8 Qd6 Qa4 Ng6 Ba5 Qb6 Rc1 Rc2+ Qc7 Nd4 Qb5 Re2 Rc5 Qd6 Qc8 Qa6 Kc7 d8R Qe8 Rd5 Qcd7 Qc6+ Kd8 Rd6 Re7 Rf6 Qc7 Rf7 Re6 Re7 f2+
4rn1Q/1pR2NBN/4B1rP/3b3n/1P1KR1b1/1BP2n2/2P1p3/kr1B2Rr w - - 0 1 illegal: No proof kernel
1R3NK1/4b1Q1/3bP2p/4B1B1/1bpPb1NR/1P1B1Pbr/1k1N2q1/1n4bN w - - 0 1 illegal: No proof kernel
N1R3q1/6R1/R1Pnpkqn/B4N2/4q2P/NKnq1p2/3PBQ1P/3b2bN w - - 0 1 illegal: No possible last move, all moves rejected
K2q4/nB1r1BpR/5qP1/6R1/kqP1n1p1/N1PQr3/1Pq2N1R/NN2n3 w - - 0 1 legal: proof: g4 e5 a4 b5 axb5 c5 d3 d5 g5 d4 g6 c4 Bd2 h6 Bg5 hxg5 dxc4 d3 Ra2 e4 Ra1 Bc5 f3 Bb7 e3 Bd4 exd4 e3 Qe2 Rh3 Qd1 Be4 fxe4 Rh8 h4 Kd7 h5 a5 c3 f5 b6 Kc6 e5 f4 d5+ Kc5 h6 d2+ Ke2 f3+ Kd3 e2 Ke4 e1N h7 g4 b7 f2 d6 a4 e6 a3 d7 a2 e7 Na6 b8N Nh6 e8B Ra7 Rh2 Ng2 Bf7 Ra8 Nh3 Nb4 Na6+ Kc6 Nc7 Ne1 Nb5 Nf5 Bg2 f1Q Nf2 Kb6 N5a3 Nc6 Kd5 Re8 h8R Ka5 R8h7 Re3 Qc2 d1Q+ Qd3 Nd6 Bf3 Qf8 d8N Qc2 Nb7+ Ka4 Na5 Ra7 Nb3 Qd8 Kc5 Rc7 Kb6 Na7 Ba8 Ne4 Bb7 Rd7+ Ka6 Qg5 Kb6 Rd4 Kc7 Rd7+ Kb8 Qc5 Ka8 Qe7 N1d2 Qb4 Rd1 a1Q Ndb1 Qa2 Na1 Qab3 Rd2 Qe7 R2h5 Qbb4 Rg5 Qf6 Nh1 Q1f5 Rdh2 Qfa5 Nf2 Qad8+
1rn2R1n/2n3NB/1P3PB1/P2rp1n1/1Q3B1R/3pr2r/3B1KPb/N3N2k w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 exf5 b4 d4 cxd4 b3 a5 Rh6 Ba6 Rh1 Bb5 axb5 a4 b6 a3 Ke2 Qc8 Kd2 Qc6 Ke1 Qa4 bxa4 Ra7 Qd3 Ra5 Qd1 Ra8 f4 Kf7 c4 d5 c5 h5 c6 h4 g6+ Kf6 c7 a2 c8B b3 a5 d3 g7 d4 Ne2 d2+ Kf2 b2 Nbc3 b1N Na4 h3 Nc5 h2 Qa4 d1R Kf3 Nh6 Bd2 Na3 Rb1 a1R Ng1 Na6 Bd3 Rb8 Nb3 Nf7 Kf2 Nb5 Qb4 Na7 Nf3 Ra3 Ne1 Rh3 Na1 Nc7 Bc2 Nh8 g8N+ Kg7 Rc1 Rae3 Nf6 Kh6 Ne8 Kh5 f6 Kh4 B8f5 Nc8 f7 e5 Rb1 Bh6 Bg6 Kg4 f5 Bf4 f8B Kh4 Rf1 h1N+ Kg1 Kg3 Bh6 Nf2 Ng7 Ne4 Rc1 Ng5 f6 Kh4 Kf2 Kg4 Rh1 Bh2 Bce4 d3 Rc5 Rb1 Rd5 Rc1 Rd8 Rc5 Rf8 Rd5 Bh7 Kf4 Beg6+ Rd4 Nb3 Bg1+ Kf1 Kg3 Bg8 Ne4 Ne8 Rh5 Na1 Rd5 Ng7 Rh4 B8h7 Rh2 Bg5 Rh6 Rh4 Rh5 Rg4+ Kh2 Bh6 Kh1 Bf4 Rhh3 Rh4 Bh2 Bg3 Ncd6 Bf4 Ng5 Kf2 Nc8
1b4R1/1Bk2qrQ/1N1q2Pb/P1P5/p2n3B/P1Kq2BB/p1NpR3/5R1r w - - 0 1 illegal: No proof kernel
1KqQnqb1/2RbN3/B3k3/2bnp2P/pPN5/3Rb1Rp/2P2P1B/1BR5 w - - 0 1 illegal: No possible last move
1q4K1/3RP2R/P5BN/1p2Q2p/2n2PR1/4p2r/NP2Bk1q/1NNrqqn1 w - - 0 1 illegal: No proof kernel
B1r2Nqq/kB2B1qr/2P3Rp/5p1q/pRQPN1qP/1N6/n2KP3/5B2 w - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 b3 e5 dxe5 Bc5 a5 Bb6 axb6 c5 Nc3 d5 Ra2 d4 Bb2 c4 Qd3 Bf5 Bc1 Nc6 Qd1 d3 Ra1 d2+ Kf2 Bd3 cxd3 Na5 Nb1 c3 Ra3 Nh6 Ra1 Nc4 bxc4 Ng8 h4 Kd7 g4 Kc6 b7 Kb6 b8N f5 d4 a5 c5+ Kb7 g5 a4 e6 f3 Ke3 c2 g6 h6 e7 b4 e8B f2 g7 b3 Nc3 b2 Nf3 b1Q Ne4 Qd5 Rg1 Nf6 g8B Rh7 Bc6+ Ka7 Nd7 Qb8 Ba3 c1Q Qb3 d1Q+ Nfd2 Qb1 Qa2 Q1b7 Nf8 Qg7 Qc4 Qdf7 Rg6 Nd5+ Kd3 Nc3 Bb7 Na2 Rb1 Qc1 Nb3 Qcf4 Rb2 Qg4 Kd2 Qd8 Rb1 Rc8 Bb4 Qfe8 Bgd5 Qe6 Ba8 Qeg8 Bdb7 Qe8 c6 Q8h8 Bg2 f1Q Be7 Qg1 Bf1 Q1g3 Nbc5 Qh5 Rb4 Qgg4 Nb3 Qd8 Nbc5 Qd5 Nb3 Qdg8
3N1r2/3K2Qp/R2NPpPB/2b1r1qR/3BP1n1/nk2p2R/RPp1B3/1b6 w - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 b5 a4 g4 axb5 g3 hxg3 Qf6 g4 Qe7 g5 Qd8 e4 d5 c5 d4 Qf3 Qd6 Qe3 Qb6 cxb6 dxe3 Ke2 Ke7 Kd3 Ke6 Kd4 a5 g4 a4 g6 a3 g7 f6 g5 a2 b7 c6 b6 Ra3 g6 Ra7 Ne2 Ba3 Nbc3 Ra8 Rh3 Bd7 Nf4+ Ke7 Be2 c5+ Kd5 c4 d4 Bd6 Ne6 Bb4 Nb5 c3 Bd2 c2 Nd8 Bc5 e6 Be8 Nd6 Bb5 Bc3 Nh6 g8Q Na6 b8B Bd3 Kc6 Nc7 d5 Ra5 b7 Bc4 Bd4 Nb5 Bc7 Na3 b8R Ng4 Ra8 Bb3 Ra6 Bc4 Rah1 a1Q Rh5 Ba2 R1h3 Qg1 Bb8 Nh6 Bc7 Qg5 Qg7+ Nf7 N6b7 Rb5 Bf4 Rf8 Nd6 Bb1 Kc7 Qg1 Bh6 Qg5 Qh8 Ne5 Qg7+ Rf7 Nc4 Ng4 d6+ Ke8+ d7+ Ke7 Nb7 Ra5 d8R Rb5 Rda8 Ra5 Qh8 Rf8 Nd8 Rb5 Kc8 Ra5 Nb6 Kd6 Qg7 Bb4 R8a7 Re5 Ra8 Nc4 Ra2 Bc5 R8a6 Na3 Bc3 Bb4 Nc4+ Kc5 Bd4+ Kb5 Kc7 Bc5 Kd7 Kb4 Nd6 Kb3
NB1B2N1/1p6/qN4B1/bpn1P2R/2p3Pp/1n2kP1Q/1BP2bK1/5rRq w - - 0 1 illegal: No possible last move, all moves rejected
B4b1q/2p1BBB1/1p3N2/1pN3pR/r1P1PNPK/Q2pkr2/qP1r3R/8 w - - 0 3 legal: proof: f4 e5 g3 a6 Bg2 Qh4 Bc6 e4 Bb5 Qd8 Kf1 axb5 Kg2 f5 Qe1 Ra6 Nf3 Re6 Nc3 b6 Nb1 Re5 fxe5 f4 Ng1 f3+ Kh3 f2 Kg2 Ne7 Qd1 Ng8 Kf1 e3 h4 Bb7 d3 Be4 dxe4 Nc6 h5 Nd4 h6 Nf3 exf3 g6 Ke2 Nf6 Qf1 Nh5 Qd1 Ng7 hxg7 Qh4 Qd5 Qe7 Qd1 Qd8 g8N Kf7 a4 Ke6 c4 f1R g4 d5 f4 h5 f5+ Kd7 e6+ Kc6 f6 Kc5 f7 d4 a5 h4 e7 h3 e8B h2 a6 Qe7 a7 Qh4 a8B Re1+ Kf3 e2 Nc3 d3 Bh6 Kd4 Nh3 Qh5 Kg3 Qf5 Na4 Qh5 Bg7+ Ke3 Nf6 Rf1 Nf4 Rh7 Qb3 e1R Nc5 Rf3+ Kg2 Qh6 Rc1 Qh4 Rc2 Ra1 Rd2 Ra4 Qa3 Qe1 Rf2 Qb1 Rc2 Bd6 f8B Qa2 Bf7 Rh6 Be7 Rhh3 Bd8 Bf8 Be7 Rf1 Qc3 Rhf3 Qa3 R3f2+ Kg3 Re2 Rg1 h1Q Rd2 Qh7 Rh1 Qh8 Rh5 Rf3+ Kh4 Ref2 Rd1 Rc2 Rh1 Rd2 Rh2 g5+
2Q3rq/B1N1PKRB/B5n1/P4r2/B2PR2b/n4qb1/2nPq1b1/RN1rk3 w - - 0 1 legal: proof: h4 d5 f4 e5 fxe5 g5 hxg5 a5 b4 axb4 c3 d4 cxd4 Be6 Qb3 Bf5 Qd1 Bc8 Kf2 Kd7 Kg3 Ke6 Kg4 Kd5+ Kh5 Kc4 g4 f5 a4 c5 e6 b5 e7 f4 e8R b3 g6 f3 g5 b4 g7 f2 g6 b2 a5 b3 Nc3 b1N Re6 b2 Nd5 Na6 Nc3 Bd6 Qa4+ Nb4 Nd1 Bg3 Re3 Bb7 Re4 Na3 Re7 b1R Re8 Ne7 Qc6 Rg8 Nc3 Nbc2 Qc8 Bg2 e4+ Kb3 e5 c4 Bb2 Rd1 Nd5 c3 Ba6 f1Q e6 Qe2+ Kh6 Rb8 Nc7 Rb5 Rh5 Rf5 Rg5 Qd5 Rg4 Qdf3 Bc1 Nb5 Ba3 Kc4 Bc5 Kd3 Bb7 Nba3 Ba7 Rf4 Kg5 h5 Bc6 h4 Ba4 h3 Kh5 Rgf8 g8B h2 g7 Ng6 Bh7 h1Q+ Kg5 Rh8 g8B Rf8 Bf7 Rhg8 Re7 Qh3 Bfe8 Rf6 Rg7 Rf4 Rh4 Rf5+ Kh6 Ne1 Bec6 c2 Bb7 c1B e7 Nec2 Be8 Be5 Ba4 Bf6 Ba6+ Nc4 Qf8 Ba3 Qa8 Bd6 Qc8 Qe1 Ne2 Bg3 Nc3 Qee2 Bb7 N4a3 Nb1 Qe6 Ba6+ Qc4 Bb6 Ke2 Ba7 Qh2 Qe8 Ke1 Qc8 Qg1 Rg4 Qce2 Re4 Qh2+ Rh4 Nf8 Bg6 Qg1 Re4 Qh1+ Bh5 Ne6 Kg6 Nf8+ Kf7 Qh4 Bg6 Qh8 Bh7 Ng6 B4b5 Re8 Bd7 Rg8 Ba4 Bfh4+
3KNr2/3r2Q1/N3bN2/kB2PrN1/n4P2/PR1b1nb1/nB1P1nnR/q5B1 w - - 0 1 illegal: No proof kernel
B1q2n2/K2r3R/1r2B2N/1P3Pb1/1n2PPb1/3B2b1/Q1R1n1k1/1NRrBb1b w - - 0 1 illegal: No proof kernel
3r2B1/2nn2kB/b1B1P3/r1bP1bq1/Nr1NRr1R/P4Q2/1K3P1N/4B1rq w - - 0 1 illegal: No proof kernel
R1R1Q1n1/2n2Nk1/P2NP3/Prb1r2b/b1qNB3/1b1K2B1/2r2PR1/qR4b1 w - - 0 1 illegal: No proof kernel
n4R1N/r1Rq2Pn/5K1b/krB5/4r1Q1/qPrqPPr1/R1b2N1N/3N1B2 w - - 0 1 illegal: No proof kernel
b1b1B3/1BR3P1/n3P2r/kN2KNr1/4RN2/BPbb1Q1b/1PB2n2/1qq3n1 w - - 0 1 legal: proof: f4 b5 h4 c5 d4 e5 fxe5 g5 hxg5 cxd4 Nc3 b4 Nb1 b3 axb3 Qb6 Nc3 Qc7 Nb1 Qd8 Kf2 a5 Kg3 h5 Kf4 d5 e4 Kd7 g4 Kc6 c4 Kb6 e6 f5 e5 d3 g6 d2 e7 d4 e8B a4 g7 d3 g5 a3 c5+ Ka5 c6 a2 g6 h4 c7 h3 e6 h2 Ke5 f4 Be2 f3 Ke4 f2 Bd7 f1B Nc3 Nh6 g8N Ng4 g7 Nf2+ Kd4 Na6 Nh6 Nh3 Ke4 Qg5 Be8 Bb4 Nb5 Bc3 Nf5 Rh6 Bg4 Qg6 Qf3 d1N Be3 d2 Rc1 a1Q Ne2 Ng1 Nf4 Bh3 Bc5 Nf2+ Kd5 d1B Ba3 Bc2 Re1 Bd7 c8B Qc1 Re4 Bd3 Bb7 Bc8 Bh5 Qh7 Bhg6 Ra7 Ba8 Rc7 Bb7 Rc5+ Kd6 Ne2 Re1 h1B Rc4 Ng1 Ree4 Re5 Rc7 Qg8 Nh4 Rg5 Nf5 Qf7 Bh7 Qh5 Bhg6 Qg4 Bh7 Qg2 Bhg6 Qgf1 Bh7 Qb1 Kd5 Qfc1 Kd6 Bd2 Ke5 Bc3+ Rd4 Ne2 Qg2 Ng3 Ba8 Rgg6 Ne3 Bc4 Qc6 Rg4 Bc2 Bd3 Nf5 Rg5 Qg2 Ne2 Qg4 Bd5 Qf3 Ng1 Bac6 Bb4 Re4 Be1 Bcd7 Bdb7 Bc6 Ba8 Bb7 Bc3+
1R2r2B/Rbk1bKq1/4B1NB/bnN2Pr1/1bn3N1/1Q2P2P/2PN4/qq5n w - - 0 1 illegal: No proof kernel
2qB1k2/NrB1rqR1/1n1r1PQ1/1PR1NbbK/B3n2q/P4r2/1N1P1n2/1B6 w - - 0 1 illegal: No proof kernel
1k1Bn1N1/1bb1rP1n/1N1PR3/P6r/2R2nq1/1P4q1/1KQNq2R/n2NbB2 w - - 0 1 illegal: No proof kernel
q2b2KN/r3qP2/Pb1n4/PQ1R2b1/R1PB1Rb1/R3r1n1/6nk/2qN2NB w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 d5+ Kf4 g5+ Kg4 Ke5 h4 b5 a4 b4 c4 d3 f3 b3 h6 d4 Kh5 d2 Kg6 Kf4 Kf7 Kg3 f4 e5 h7 e4 a6 e3 a5 g4 h5 e2 f6 e1B h6 b2 f5 d3 Rh2 Nd7 Ra3 Qe7+ Kg6 Nb6 f7 Ra7 Rh1 Nf6 Ra2 Nh5 Qc2 d1Q f6 d2 Qc3+ Qf3 Ra3 d1N Be3 Bd2 Qb3 Qa8 Bd4+ Ne3 Nc3 Ng2 Qb5 b1Q+ Bd3 Bf4 Nd1 Qc1 Be4+ Be3 Ra4 Bg5 Bc6 Bg7 f8R Be6 f7 B7f6 Rh4 Nc8 Rd8 Re8 Rd5 Nd6 h8R Bd7 Kh7 Bc8 Nh3 Kh2 Rg8 g3 Rf4 Bg4 Ng1 Qf8 Bb7 Bd8 Kh8 Re5 h7 Qe7 Re8 Re3 Kg8 Nh4 h8N g2 Bc6 Ng3 Bb7 Qc7 Ree4 Qe7 Rf3 Qb1 Ref4 Qc1 Ne2 g1B Bc6 Re4 Rfa3 Ng2 Bb7 Bf2 Ng1 Re3 Rc5 Nh4 Bh1 Ng2 Rd5 Re4 Bf6 Bfb6 Bd4 Re3
1r1NBkb1/2R2P1P/rB6/r1RP4/1b1bB1q1/q2QBq2/2Knn1P1/R4N1q w - - 0 1 illegal: No proof kernel
4n1b1/r1RqP2B/1K2nQ1B/R3P1Pb/2Pb1q2/2b2krR/1BN2q1n/3NR3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Ke4 g4 d5+ Kb3 h5 Ka4 a5 c4 f5 g6 d3 e3 f4 e6 d2 e7 h4 g5 d4 g7 d3 b6 f3 Kb5 h3 b7 f2 Bb2 h2 Qe1 d1Q Kc5 d2 b5 a4 b6 a3 Nh3 a2 Qe2 Be6 Na3 Ra7 Nc2 Nf6 g8R Qd7 Rg6 Bg8 Rh6 Qg4 Rg1 Qf4 Qf3+ Kf5 Bg2 h1Q Re1 f1N Nf2 Qg1 Rh3 Ne8 Bh1 Nh2 e4+ Kg6 Kb5 Nd7 b8B Bg7 b7 Bc3 Be5 Nc5 b8R Rh4 Kb6 Rg4 Bd4 Rg3 Bg7 Qf1 e5 Kf5 Ra8 Qg1 Rb1 a1B Bh6 Qf1 Qc6 Qdg4 Nd1 Q1f2 Qd6 Bd4 Bf3 Bc3 Be2 Ke4 Bd3+ Kf3 Bh7 Qd7 Qf6 Bd4 Rc8 Bc3 Rc7 Bd4 Ba3 Bab2 Ra1 Bbc3 Nde3 d1B Bb2 Be2 Ra4 Bd3 Ra5 Bg6 Nd1 B6f7 Qd6 Bh5 Qf6 Ne6+
2k1r1R1/B1Pq2K1/2N3b1/Q1qB1bP1/2rPn1r1/1b3PB1/3nN1B1/b3RnR1 w - - 0 1 illegal: No proof kernel
1B1R2b1/nKPqnQr1/n2R4/k1PP4/1bBqP1n1/1RR1bN1N/2B5/2q3r1 w - - 0 1 illegal: No proof kernel
8/brQP4/1PRNqrn1/KP1b2PR/2rBBkrN/4N3/r1nr4/B1n2B2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 Kc3 c5 b4 h5 g4 f5 g6 c4 b6 h4 g7 h3 g5 h2 Bd2 f3 Ra3 f2 Bd3 f1R Nf3 a4 Qb3 f4 Qc2 Qe8 Ne5 f3 Ng6 f2 Be3 Na6 Nh4 Be6 Nd2 Rb1 Nf1 Ne7 g8B Ng6 Bh7 Rc8 Ra1 Rb2 Rc1 a3 b5 a2 Be2 a1R Bd3 Nb4 e5+ Ke7 Be2 Raa2 d6+ Kf7 d7 Bd6 d8B Bd5 Be7 Ke6 Bf6 Bb8 Bd3 Ba7 Be4 Kd7 e6+ Kd6 e7 Qf7 Bg8 Rh7 e8N+ Ke6 Nd6 Rc6 Ng3 f1R Ngf5 Rg1 Bf2 Rg4 Ne3 Rg7 Bh7 Qe8 Bg2 Rb7 Bf1 Rcc7 Bg7 Rf7 Bg1 Rf6 Bf2 Nf8 Be4 Ng6 Qd3 Rd2 Qc2 Bc6 d5+ Ke5 Bh8 Qe6 Bg1 Kf4 Bf2 Nd3 Bg7 Ne1 Kb4 c3 Bh8 Rb2+ Ka5 Rb4 Nec4 Rb2 Bd4 Rb4 Ne3 Rc4 Qb3 c2 Qc3 Rb4 Qc5 Rc4 Ba1 Be8 Qc7 Bc6 Rb1 c1N Rb4 Rf7 Bhd4 Rf6 Rb3 Nc2 Rc3 Qe8 Nc8+ Qe5 d6 Bd5 d7 Qd6 Bc5 Qe5 Nd6 Qf5 Bd4 Qe6 Rg1 h1R Rg2 Rb4 Rc6 Rc4 Rh2 Rhg1 Nhf5 R1g2 Rh5 Na3 Nh4 Ra2 Bed3 Rgd2 Be4 Nc2#
1r1rB1br/R5b1/R1NnPBP1/1B3B1k/bK1P1q1b/1PN3R1/Qn1b4/3r4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 g4 f5 d4 Kf7 Kd2 Kg6 Kc3 c5 e4 a5 e6 h5 e5 a4 b6 f4 b7 a3 e7 a2 b3 h4 Bb2 h3 Qd2 f3 Rh2 f2 Nf3 Nd7 b8R Ngf6 Ba3 Nb6 Qb2 Na4+ Kd2 c3+ Kd3 c4+ Kc2 Ne8 Bb4 Be6 Na3 Qd6 Nb5 Bg7 Rg2 h2 Rb6 h1R Rg3 Rb8 Ra6 Bg8 e6 Qf4 Bc5 Nd6 e8B+ Bf7 Be2 f1B Qb1 Nb2 Ne5+ Kh7 g6+ Kh6 Bb4 Bg8 Nc6 Bg2 Bd3 Rd1 g5+ Kh5 Ba5 Bf3 Bd8 Bh1 Bf6 Bg2 Qc1 Bf1 Qd2 Rd8 Rc1 a1R Qf2 Ra4 Ra1 Rb4 Ra7 Bg2 R1a6 Be4 Na3 Rbb8 Nb5 Bh6 g7+ Bg6 Bd7 Be8 g6 Bg5 Bf5 Bh4 Qh2 Rd2+ Kb1 c2+ Ka2 c1B Ka3 c3 Kb4 c2 Qf2 Rd1 Qd2 Ra8 Nc3 Rac8 Qf2 Bd2 Qg2 c1B Qh2 Bh7 g8B Ra8 Bf7 Bg8 Na5 Rab8+ Bb5 Qf2 Nc6 Bh6 Be7 Qf4 Bf6 Bg7 Qc2 Bd7 Be8 Be3 Qb1 Bd2 Qa2 Qf1 Ne7 Nb7 Bbd3 Ba4 Nc6 Nd6+ Bb5 Qf4
3N4/2R2bnk/1PP1n3/PB1Nn1Pr/R4b2/2Nq3r/1BR2KrN/3rQn1n w - - 0 1 illegal: No possible last move
K1nR4/1r1Q2N1/2N1R1bn/1r2b1rP/1q2B3/2NPB2n/PBnP3k/1rb1B3 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 d5 b3 d4 b4 d3 cxd3 axb4 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 f4+ Kh4 h3 Kg3 h4 g5 f6 e5 f7 c5 h6 b5 h5 b3 h7 g4 f5 c4 f6 c3 Nh3 b4 Nf4 b2 Bh3 c2 Bf1 b3 Nd5 Bg7 f8N Qa5 f7 Ra7 Ne6 Nc6 f8B Nh6 Nbc3 b1R Nb4 Ne7 Rg1+ Kh2 Bb2 c1B Nc6 g3 Qg4 Rb7 Bg2 Rg8 h8B Bf6 Bf3 Rg5 Ng7 g2 Qd7 Qb6 Rf1 g1N Bh1 Nh3 Rf3 Nd5 Bc5 Ne7 Bf2 Qc5 Be1 Qb4+ Qd4 Be6 Re3 Bc4 Qd7 Nc8 Rf3 Bb5+ Kd5 e4+ Rf5 e3 Be4 Be5 Rf8 e2 Rd8 Qe7 Ba3 Qf8 Bc5 Rb2 Be3 Qb4 Na5 Bc4+ Kc6 Bf7 Rb1 Rb5 Ra1 Bg6 Rb1 Nb6 Kb7 Nc8+ Ka8 Rb7 Bh4 e1N Nc6 Nc2 Ra1 Rb1 Be1 Ba3 Bh4 Rb2 Re1 Rb1 Bhf2 Bc1 Re2 b2 Be1+ Rg2 Rf2 Rb5 Rf6 Rg5 Re6 Ra1 Ne8 b1R Bf6 Rb2 Ng7 Rab1 Be7 Qd4 Ba3 R2b3 Bb2 Rb7 Rh8 R3b5 Rd8 Qb4
1NbRqR1r/2r3P1/qk1P1RRB/2b4n/2B1rbbK/2P2nQ1/4P1r1/1BN5 w - - 0 1 illegal: No proof kernel
B1RK3b/P1rnP1qB/2n2b1N/b5n1/2NPNkbB/n2Rq3/1P6/3Q1rB1 w - - 0 1 illegal: No proof kernel
r1k4b/1R6/P1n1NN2/n1bbBPP1/1Bn3BP/2Q1q1pq/3R1N2/2NK1rq1 w - - 0 1 illegal: No possible last move, all moves rejected
3R2n1/r2P1q2/NB1B1Np1/2b1P2N/r1QrP2B/1b6/1knRK1PN/n3b2q w - - 0 1 illegal: No proof kernel
1RKb3q/2P5/2k1B2B/n1N1qrq1/b2nr1N1/NQ1R2P1/1R1P1P1p/2r3nR w - - 0 1 illegal: No proof kernel
1kNq4/1PR4r/1nR1n2q/B1Pr2Nq/2p1QB2/2P5/br1BPK2/B1b1nR2 w - - 0 1 illegal: No proof kernel
B1qnK3/1P1nrNBB/p1Nb2P1/P4kn1/3R4/7r/1r1P2qN/3BQqRb w - - 0 1 illegal: No possible last move, all moves rejected
2r3r1/nRB2r1R/3RK3/3R1NNN/P1bpQ3/qP6/rPP4b/1Bb2rkn w - - 0 1 illegal: Other
b2r1r1q/1n2B2R/k3P2b/N1rB2BP/bQ3KRN/3r2B1/PR3Pp1/2nr4 w - - 0 1 illegal: No proof kernel
2N5/K1n1B1Pr/5Nrr/Q3P3/1bNnRp2/B1rN2r1/1b2PPk1/Bb1R1q2 w - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 e5 dxe5 c6 a4 Qf6 axb5 Qd8 b4 Nf6 b6 Ke7 g3 Na6 b7 Ne8 b5 Nf6 b6 Ke8 Bg2 Ng8 Bd5 Nb8 Bc4 Na6 Bd3 Nb8 Bb5 cxb5 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 c4 Kg4 c5 a5 c6 d5 g6 f5 c7 h5 g7 a4 Bb2 f4 Rh2 h4 Na3 b4 Rg2 b3 Qb1 h3 Ra2 h2 Ba1 h1R Nf3 Kh3 g4 b2 g5 Nf6 g8N Bf5 c8N Ra6 g6 Rh6 g7 Bb4 Nd2 Ne8 Ne4 Nc7 Qc1 b1R Nc4 a3 Nc5 Rb3 Rg1 Rg3 Rd1 Bb1 Qc3 Kg2 Nd3 R1h3 Rb2 a2 Nf6 Rhg6 Qa3 Rh7 Qa5 Qd7 Rb3 Qh3 Rc3 Qh1 Ra3 Qf1 Ra4 Be1 Kc5 d4 Rb4 Nc6 b8B Rgh6 b7 Rb6 Bb2 a1B Ba3 Rhg6 Ba7 Bb2 b8B Bd2 Ra4 Rb3 Rb4 Rc3 Kb6 Rgh6 Kb7 Rgg6 Bc5 Rg3 Be7 Be1 Nc1 d3 Ba7 d2 Nd3 Nd4 Bac5 Rgg6 Ka7 Rg3 Rc1 d1R Ra4 Nde6 Bd4 Rd2 Rd1 Rgg6 Nc5 Rdd3 Rb4 Rdg3 Nd3 Rb3 Ra4 Bb4 Bc3 Bc1 Bcb2 Rc3 Ba1 Bb2 Nd2 Bd6 Re4 Nd4 Nc4 Bb4
br5R/nqb1bP2/1BP1Nk2/7R/rbb1r1pn/4BP1K/2Q3P1/1B2NNB1 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 Qb6 h5 Qg6 hxg6 Bg7 Nc3 Bh6 Nb1 Bf8 b4 h5 c4 e5 f3 Ke7 Kf2 a5 Kg3 d5 b6 h4+ Kh2 d3 b7 h3 c5 d2 b5 e4 g7 d4 b6 d3 Nc3 e3 Nge2 a4 Nd4 e2 Ra2 e1B Qe2+ Kf6 Nc2 d1Q Nb1 a3 Nd2 Nc6 b8B Nh6 b7 Na7 c6 Be7 Bc7 Rg8 b8B Bb7 Rb2 a2 Bb6 a1B Bg3 Rge8 Bgf2 Rab8 Bg1 Ba8 Rb4 Bc3 Rh4 Bcb4 Rh5 Bf2 Ne1 Qb3 Qe4 Bd4 Kg3 h2 Kh3 Be5 Be2 Bf4 Nf1 d2 Bd3 d1B Bce3 Bc7 Bb1 Be2 Qc2 Bc4 g8N+ Ke5 f6 Nf5 f7 Nh4 Nh6 Kf6 Nf5 Qb2 Nd4 Qb3 Bgf2 Qb2 Rg1 h1R+ Kg4 Rh2 Rh1 Qb3 Rh8 Rh3 Bg1 Rg3+ Kh5 Rg4 Ne6 Re4 Rh2 Red8 Rh3 Rd5 Rh2 Ra5 Rh1 Ra4 Rh2 Bf4 Kg4 Bc7+ Kh3 Bbc5 Ba5 Qb7 Bb6 Bb4 Rh1 Nf5 Rh2 Bf4 Kg4 Bfd6+ Nf4 Be5 R2h5 Bc7 Kh3 Nh4 Ne6 g4+
2BR2qK/2r2pr1/b1bN2RQ/1B1rnP2/2nb1R2/P4P2/2k1rR1P/1r1N2N1 w - - 0 1 illegal: No possible last move, all moves rejected
B1Kq4/1PN1Pr1R/R4rr1/r1nr1p1n/7b/Q2BRB2/2b1bP1P/2N2kB1 w - - 0 1 illegal: Other
1rR2B2/1P1p1B2/6bP/k1nR1B1N/1n1rrQnb/4PR1r/1r2PNK1/q4B2 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 g3 e4 g4 e3 fxe3 hxg4 Kf2 a5 h4 f5 b4 g5 c4 a4 h5 a3 c6 f4 c5 f3 b6 a2 b7 g3+ Ke1 g2 Kf2 g4 b5 Nh6 b6 Qf6 c7 Nc6 b8R Nb4 c6 Be7 Nh3 g1R Qd4 Qe5 Qf4 Bh4+ Qg3 Ke7 Nc3 Kd6 Ba3 Kc5 Nd5 Kb5 Nf6 Bb7 c8B Ka5 c7 Be4 Rd1 a1N Bb7 Nb3 c8B Qa1 Bd5 Bg6 Bf7 Nc5 Bb7 Re8 Bc6 Re4 Rc8 Rb8 b7 Rd4 Rh2 Rh1 Rg2 Rh2 Be4 Rh1 Bf5 Re4 Nf4 Rh3 Rd5 Rd4 Rh2 Re4 Kg1 f2+ Kg2 Rd4 Qf3 g3 Nd3 Ng4 h6 Re4 Nh5 Rd4 Qf4 Re4 Kf3 g2+ Ng3 g1R Rg2 Rhh1 Nh5 Rh3+ Rg3 Rd4 Bg2 f1R+ Nf2 Rb1 Bf1 Rgh1 Kg2 Rb2 Rf3 Bd8 Qg5 Rh4 Qf4 R1h3 Qg3 Nf6 Qh2 Rhe4 Qf4 Ng4 Nf6 Nc6 Nh5 Bh4 Rd6 Na4 Bc5 Nb4 Rd5 Qa3 Be7+ Nc5 Bf8 Qa1
B5QN/3Rb1R1/1PK2rPP/1n5r/3R4/Nnn2PpR/rb1nq2B/kbN5 w - - 0 1 illegal: No proof kernel
Q6N/4nrP1/1N1R2Pn/B2P2b1/1qr3Pb/p2B1RrB/3kbN2/1nNn3K w - - 0 1 illegal: No proof kernel
3R3K/B1Pb3N/Bq1n1bPP/2r1Nn2/k3n3/3N1b1r/1p1NP1QR/1B1r2n1 w - - 0 1 illegal: No proof kernel
R1r3R1/Nb1BN1Bn/k3NQPP/4Npr1/K3q1P1/1rb3r1/P2rn2B/1q6 w - - 0 1 illegal: No proof kernel
q2k3K/1b1pNB1N/Q1nrP3/P2r3n/P3q1r1/3BRbr1/2RP2Nr/2B3B1 w - - 0 1 legal: proof: h4 b5 f4 g5 hxg5 a5 b4 e5 c3 exf4 bxa5 b4 Bb2 b3 Bc1 Bb4 cxb4 Qf6 Rh6 Qe7 Rh1 Qd8 Kf2 f5 Kf3 c5 g4 h5 a4 c4 e4 h4 g6 b2 g7 h3 e5 h2 g5 c3 g6 c2 b5 Qg5 e6 Kd8 b6 Ne7 g8N Nbc6 g7 Nd5 b7 Ra6 b8B Nf6 Ra2 Bb7 Nc3 b1Q Qe2 Nh5 Ne4 Qf6 Qd3 Qf8 Ne2 Rb6 Rg1 h1B+ Rg2 Rb5 Ba7 Rd5 Qa6 Qbb4 Ng5 Qe4+ Kf2 f3 Nf4 Rh6 Rg3 Rg6 Ng2 f4 Nh7 Rg4 Ne7 Qg8 Ba3 c1R Rc2 Rb1 Be3 Rb6 Bd3 Qf8 g8B Qe8 Kf1 f2 Ke2 f1R Bf7 Rg1 Bc1 f3+ Kf2 Rd6 Bd4 Rb5 Rh3 Rbd5 Bc5 Qc4 Ke3 f2 Ba7 f1R Bd4 Rg6 Ke4 Rf2 Re3 Rg3 Nf8 Ne5 Nh7 Re2 Kf5 Qg8 Ne1 Rh2 Ba7 Bf3 Ng2 Ng7+ Kf6 Qe4 Re2 Nc6 Be3 Rgh1 Bg1 Rh4 Re1 Rhg4 Re3 Qh8 Bg6 Nh5+ Kf7 Qhd4 Kg8 Qa7 Kh8 Qa8 Bf7 Rh2
knr4q/2PP2Np/N4nP1/b3KRBQ/bb3r2/1qPBBb2/1RN5/1N5b w - - 0 1 illegal: No proof kernel
nK2n3/2pb1N2/3b1n1B/NBRP2B1/1P2P3/kPR3qn/q2r2Rr/3nB1Q1 w - - 0 1 legal: proof: g4 d5 f4 b5 c4 h5 gxh5 e5 cxd5 exf4 a3 b4 axb4 Be7 Na3 Bc5 Nb1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 a5 e4 g5 h4 a4 h6 g4 h7 g3 h5 a3 h6 f3 Rh2 f4 Nh3 g2 Bd3 g1N Bb5 a2 Na3 f2 Rg2 f1N Ng5 Nh3 d3 Nh2 Qg1 f3 b3 f2 Kc4 f1N d4 Ng4 Bd2 Qd7 Be1 N8f6 Rc1 a1Q Rc3 Qa2 Nf7+ Ke7 Kc5 Ne8 d6+ Ke6 Ba6 Ngf6 Nc4 Ne3 Na5 Nd1 Bd3 Qd8 Bb5 Nbd7+ Kc6 Nb6 d7 Bd6 Rc5 Qe7 d8B Bd7+ Kb7 Qf8 Be7 Qg7 Rc3 Ra6 Kb8 Na8 Bf8 Qg3 Rc5 Rg8 h8R Ra7 Rh7 Rh8 Rg7 Ra6 h7 Ra7 Rgg5 Ra6 Bh6 Rc6 Rc1 Rc2 Rc5 Rd2 Bg5 Ke7 Nh6 Ke6 d5+ Ke5 R1c3 Nf4 Rf2 Kd4 Nf7 Nh3 Bh6 Rg8 h8B Rg5 B8g7 Rh5 Bg5 Rh4 Rc6 Rh6 R3c5 Rh5 B7h6 Rh4 Nc4 Kc3 Na5+ Kb2 Rg2 Ka3 Rc3 Nf4 R6c4 Rh2 Rc5 Nh3
1B2N2k/RqbK4/2P4r/3p2N1/1bN2QqP/2nP2rn/q3BP1R/1B2rr1B w - - 0 1 illegal: No proof kernel
1BrRN3/1nnBn3/2p3P1/3q2r1/r1PKb1RQ/k3r1PN/q1RNb2P/6N1 w - - 0 1 illegal: No proof kernel
8/N2B1B2/kP2qnq1/q5qB/bpRRn1rP/1Pb1N1R1/1PQ1n1R1/K4r2 w - - 0 1 illegal: No proof kernel
5R2/1q1KR2R/P2B4/5PBP/2rqn2q/3Npr2/n1nkP1Q1/B1bNnbB1 w - - 0 1 legal: proof: c4 a5 b4 f5 bxa5 d5 cxd5 h5 g4 Rh6 gxf5 Rh7 Bh3 Rh8 Bg4 hxg4 a4 Kf7 d4 Kf6 Kd2 Kg5 Ke3 c5 d6 b5 f6 e5 f3 c4 d5 e4 h3 c3 f7 g3 d7 b4 a6 g2 a5 b3 d6 c2 a7 b2 Nc3 b1Q Qf1 Rh4 Bb2 c1N Kd4 Kf4 Kd5 Ke3 Ke6 g5 f4 g4 Nf3 g1N Qg2 g3 Ne1 Bh6 f8B Nf6 Nd1+ Kd2 Nd3 Na2 f5 Nf3 Bd4 Na6 Bg1 N6b4 a6 Rf4 h4 Ne1 Be7 Rb8 a8R Rf3 Rh2 Qb2 Rc1 Bb7 Rc7 Nbc2 Rh1 Qh8 d8B Rc8 d7 Bc6 Rca7 Qb7 Bd6 Bd5+ Ke7 Rc4 Bdb6 Bg5 Bbd4 Bc6 Ba1 Be3 Qf1 g2 Rf8 Qh5 Rh3 Qg4 h5 Qh4 Rg3 Bh6 Rg7 Bd5 Rh7 Bf4 Bh2 g1Q Qg2 Qd4 Bg1 e3 Rfa8 Be5 Rf8 Ne4+ Ke8 Bh8 d8B Be5 Bg5 Bf6 Be5 Be7 Beh2 Ba3 Bd6 Bc1 Re7 Qb5+ Rad7 Qb7 Rc7 Bc6+ Kd8 Bd5 Kd7 Bg8 Kd8 Rf2 Re5 Nc5 Qg4 Bd5 Rh7 Bg2 Ree7 Bf1 Qg2 Ne4 Ke8 Rf3 Kd8 Qbd5 Kd7 Qb7+
8/n1bNR2P/4PB1B/1RRbNKbQ/2p1r1P1/BP1rkr1r/4q3/1q1B1n2 w - - 0 1 illegal: No proof kernel
b4rBk/1qbRq2P/2rbPPq1/7B/nKn4p/4B1qN/2QR3P/1B1RN3 w - - 0 1 illegal: No possible last move
1nnNN2k/3b2np/rR1b3B/P6N/Pq4K1/1r2N2Q/2BP1bPR/nq5R w - - 0 1 illegal: No possible last move
1n1BKN1b/5P1P/3nBp1R/b2qk2B/1R1Nb2r/1Br1qR1r/1Q2PP2/1b6 w - - 0 1 illegal: No proof kernel
b3b1n1/3bpB2/1bR5/1k1P1qKR/r1N1PQB1/n1PP4/4qqRN/1B3rB1 w - - 0 1 illegal: No proof kernel
n5r1/1n1PB1k1/N1q5/3q1P2/p1BRPQPb/R1r1Bb2/1r1rNB1R/3qK3 w - - 0 1 illegal: No proof kernel
RR2r1N1/3P1q2/b1qR1KNr/1P1rpb2/B1Q1P1k1/3R1n2/P4B2/2nb1rB1 w - - 0 1 illegal: No proof kernel
7b/rbKP3q/2q3N1/P1Rr1Nn1/Qn1RqBB1/1bp1B1PP/5Bb1/1kN5 w - - 0 1 illegal: No proof kernel
R1q2B1k/1NPrq3/3bqp1P/3r2b1/r1qRB3/QB4R1/PN3P2/1n1n1KB1 w - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 h5 gxh5 Be6 dxc5 axb4 Qg4 d4 Qd1 Bd5 exd5 Ra5 Bd3 Ra7 Bf1 Ra8 h4 g5 c4 e5 c6 b5 d6 d3 c7 f6 c8B Kf7 d7 Kg7 c5 b3 c6 d2+ Ke2 e4 c7 b4 Ba3 e3 Bc1 g4 Bb2 g3 Bc1 g2 Ba6 b2 Rh2 b3 Nh3 g1B Bc4 Qe7 d8R Rh7 h6+ Kh8 h5 Na6 Bg2 Nc5 Kf1 Nd3 Ng5 Ra4 Rh3 Bh2 Ne6 Bf4 Rg3 Bg5 Na3 b1Q Be4 b2 Bb3 Qc2 Nc5 b1Q Nb7 Nb2 Qf3 Nd1 Ra8 Qe6 Bb2 Rd7 h7 Ne7 Nc4 Nd5 Be5 N5c3 Nb2 Qbc1 Bf4 Nb1 Bd6 Qc5 Bf4 Qce7 Bd6 Kg7 h8B+ Kg8 h6 e2+ Kg2 e1R Bg7 Qcc4 Qd3 Re3 Kf1 Rf3 Be5 Rf5 Bf4 Rfd5 Bd6 Qd8 Be5 Bd6 Bf8 Qc8 Bf4 Qd4 Qe3 Qc3 Qc5 Kh8 Qa3 Qb4 Be5 Nbc3 Rc1 Nb1 Rc4 Qc5 Rd4 Qc4+ Rgd3 Ndc3 Bh2 d1Q+ Kg2 Qc1 Bg1 Nd1 Kf1 Qb4 Rf3 Qe3 Rg3 Qe7 Bg2 Q3e6 Be4 Qc4+
3qBKN1/1PP1nBbr/3N3n/P5p1/qQ1R1Nq1/2R5/4B2P/1qr1krBb w - - 0 1 illegal: No proof kernel
2q1R3/QPPnq2P/KRn1q1B1/7R/1Nr1bbb1/3B1N1p/BBr1P3/5q1k w - - 0 1 illegal: No proof kernel
2Rq4/1p1Bk1P1/2r1P3/5n1R/q1bQRbP1/1qNP2N1/1r2Rq2/n1B2NKb w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 f5 a4 c5 g4 h5 e4 h4 a5 h3 a6 b3 g6 b2 d6 c4 e6 c3 e5 c2 e7 h2 a7 f4 d3 f3 g7 Nd7 Ra2 Rh6 Nc3 b1Q Nge2 Qb3 Bg2 Nc5 Ng3 Be6 Qg1 Bc4 d7+ Kf7 e8N Ke7 Nf1 Rc6 e6 Nh6 Nf6 Nf5 Nfe4 Qa4 Rb2 Nb3 Neg3 Na1 Ra2 Rac8 a8R Rb6 Ra5 Rb2 Re5 Rc6 Re2 Qb3 Ra5 Qa4 Rae5 Qb3 R5e4 Qa4 Bh6 c1Q Bf4 Qcd1 Bc1 Qc8 d8R Qdb3 Rc2 Qc7 Rc8 Qd8 Rce2 Ke8 Nd2 Bd6 Kf1 Ke7 Qd4 f2 Bf3 Qg8 Kg2 Bf4 Ndf1 Qd8 R4e3 Rb6 Bc6 Ra6 Bd7 Rc6 Re5 Nh6 Rh5 Nf5 Rg1 h1B+ Kh2 Qab5 Re4 Q5a4 Rg2 Bg5 Nd2 f1Q Rge2 Qf3 Kg1 Bf4 Ndf1 Qf2+
1rRRN3/1pN2P2/PnP3B1/kPRN1qBN/1bqnb3/3rQ3/2n3b1/3Kn3 w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 cxd4 g4 h5 gxh5 Qc7 Na3 Qb6 Nb1 Qd8 Na3 a6 Nb5 Qb6 Na7 Qc7 Bxa6 Qb6 Bf1 Qd8 f4 d5 b4 Kd7 a4 Kc7 c4 Kb6 h4 g5 h6 e5 b5 e4 a5+ Kc5 a6 Kb6 f6 d3 h5 g4 f7 e3 f5 e2 f6 d4 h7 g3 c5+ Kc7 h6 g2 c6 Kb6 Nh3 g1Q Bg5 Nd7 Rc1 Bb4+ Qd2 Qf8 Rc5 Ne7 Nf4 Rb8 Nd5+ Ka5 Rh3 Qg8 f8N Nb6 Ne6 Qg4 Nec7 Bf5 Nc8 Be4 Nd6 Qf5 Nde8 Qge6 f7 Rg8 Bh4 Rg3 h8N Re3 h7 Bg2 Ndf6 Qc4 Bg5 Be4 Qc3 Rf3 Kd2 e1N Kd1 d2 Nh5 Rd3 Ng6 Bg2 h8R Be4 Ke2 d1N Ngf4 Ne3 Nfd5 N3c2 Qd2 Bg2 Qe3 Rd1+ Qd3 Qc8 Neg7 Bc3 Nhf4 Bb4 R3h6 Qh3 Rd6 Nf5 Rc8 Qh7 Nge8 Qg6 Kf2 Rd2+ Qe2 d3 Rdd8 Nfd4 Nh5 Rd1 Qf3 d2 Bd3 Qf6 Bg6 Qf5 Bh6 Ra1 Qf4 d1B Bg5 Bdf3 Qe3 Ra3 Qb3 Bh1 Qe3 Rd3 Kf1 Nb3 Kf2 Be4+ Ke2 Bhg2 Bf4 Bd2 Bg5 Nbd4+ Kd1 Bb4+
2nrKB1r/P6r/NN1pk2b/4Nb2/P1R2qqP/3q1nB1/3P2qR/3R1Q1N w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c6 b4 Ra7 bxa5 Ra8 Bb5 cxb5 Ke2 Kf7 Ke3 e5 Ke4 g5 Kd5 d6 c4 e4 h4 b6 f4 e3 a4 b4 f6 g4 f5 g3 a6 g2 a7 e2 h6 e1Q c5 b3 h7 b2 c6 b5 c7 b4 Nh3 g1R Nf2 b3 Na3 b1Q Nc2 b2 Nb4 Rg5 Rh2 Nh6 Na6 Qg1 Qf1 Ng4 Nh1 Nd7 Kc6 Qd3 Rb1 Qe7 Ra1 b1Q Bb2 Qge3 Be5 Rg7 Bg3 Qd1 Rc1 Nb6 Rc4 Be6 c8N Qe8+ Kc7 Qc6+ Kd8 Qf4 Re4 Ne5 Rc4 Rhg8 h8R Rh7 Rc1 Q1f3 Rd1 Rg6 Rg8 Bh6 Rg7+ Kf8 Rc7 Q3g4 f7 Qg2 Rc4 Kg7 f8N Kf6 Ke8 Rgg7 Ng6 Nf3 Ne5 Rd7 Nb8 Nd5 Nb6 Ne7 Rh3 Nc8 Rh2 Kg7 f6+ Kg8 Ra1 Bf5 f7+ Kg7 f8B+ Kf6 Na6 Ke6 Rb1 Rb8 Be1 Rh8 Bf2 Rbb7 Rd1 Rdh7 Be1 Rbd7 Bg3 Rd8+
nBq1Q1b1/P1p1K1P1/PP1BRN2/6kb/qrb1nb2/6Nr/RBB2r2/4N3 w - - 0 1 illegal: No proof kernel
3R1R2/7n/N1rnP1rB/Q3bn1P/BpN5/1P2P1r1/R1qr3k/K2BbB1n w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 c5 dxc5 e5 fxe5 b4 Bh6 Ba6 Bc1 Bb5 axb5 Qb6 Be3 Qc7 Bc1 Qd8 Kd2 Ke7 h4 Ke6 c4 Kf5 Kc2 d5 b3 g5 Kb2 a5 c6 g3 e3 g4 h5 a4 b6 a3+ Ka2 g2 b7 g3 c5 d4 c7 d3 c8B+ Nd7 b8R d2 c6 Qc7 e6 Nb6 Bd7 Bg7 Rf8 Nc8 Bb5 Nd6 Rh3 Be5 Qe1 Kg4 Ba4 d1N Bb5 f5 Bd2 f4 Bc4 f3 Be2 Nf6 Nc3 Nf2 Ne4 Rd8 Rh1 Nh7 Bc3 Rc8 Rh2 Nh1 Nc5 Rg8 Qc1 Rg6 Na6 Rd8 Bf1 f2 Nf3 g1B Nd2 g2 Nc4 Kg3 Qb1 Rc8 Qf5 Rd8 Be2 f1N Rd1 Bf2 Ka1 g1R Bf3 Qc8 c7 a2 Ba4 Be1 Rd4 Rd7 Bd1 Rd8 Rf2 Rg2 Rb2 Kh2 Rd3 Nfg3 Bd4 Bf6 Qa5 Ngf5 Rbd2 Bh8 Bg7 Rg3 Rb2 Rd7 Bh6 Be5 Rd5 Rd2 Rd4 Rdg7 Rc2 R7g6 Rb2 Qb8 c8B Qc7 Bb7 Qc8 Bg2 Qc6 Bf1 Qc8 Na3 Qc2 Nc4 Qd3 Na3 Nc8 Rd7 Ncd6 Rdd8 Bf4 Rc2 Qc4 Kb2 a1R Qd5 Rc1 Qa5 Be5+ Ka2 Rg8 Rb2 Rc3 Ka1 R8g6 Ra2 Qd3 Rb2 Rc6 Nc4 Bf4 Ra2 Qe4 Rde8 Qc2 Rd8 Be5+
n1N2n2/1R1n1P2/3Np3/2q3PR/2rNPbK1/3rRr2/3PBkbn/BQr4R w - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 cxd5 fxg4 h4 Bg7 hxg5 Bf8 f4 Kf7 Kf2 Kg6 Kg3 Kf5 b4 Ke4 b6 a5 b7 h5 b5 c5 f5 e6 f6 h4+ Kf2 c4 e3 a4 b6 c3 d6 g3+ Ke2 g2 d7 a3 f7 h3 Nf3 g1N+ Kf2 a2 Kg3 c2 Bb5 h2 Kg4 Na6 b8R Bb7 Ne1 Nc7 Be2 Ne7 Na3 Ng6 Kg3 Qc8 d8R Rh4 Rd5 Nf3 Nb5 Bd6+ Kf2 Ra3 Rd3 Bf4 Bb2 c1R Nc2 Nf8 Ncd4 Ne5 Qb3 Bc6 b7 Na8 Bc3 Ned7 Qb1 Qc7 Kg2 Rg4+ Kh3 Qe5 Bb2 Qc5 Bc3 Rg3+ Kh4 Rf3 Kg4 Ra4 Bb2 Rac4 Nd6+ Ke5 Ra3 R1c3 Rb3 Rd3 Ra3 Rf2 Rc3 Bg2 e4 Rff3 Rb3 Nh7 Rh8 Nhf8 Re1 h1N b8N Ng3 Rb7 Nf1 Rh5 Ra4 Na6 Rb4 Nc7 Rc4 Nc8 Qd5 Qc2 Qc5 Rad1 a1R Ne8 Rb1 Ba1 Rc1 Qb1 Bh2 Kh4 Kf4 Ned6 Ra3 Rh8 Rad3 Kh5 Kg3 Rh7 Kf2 Kg4 Bf4 Rh5 Ng3 Reh1 Nf1 Re1 Ng6 Bd1 Ngf8 Re3 Qd5 Be2 Qb5 R5h3 Qc5 Rh5 Nh2+
R3b3/1qPnK1N1/1rP1Nb2/2BN1Qn1/3R1B2/2rPRpbr/2k1bPN1/7r w - - 0 1 legal: proof: e4 d5 exd5 c5 g4 h5 gxh5 a6 b4 Kd7 bxc5 Ke8 Bb5+ axb5 Ke2 Kd7 Ke3 g5 Kd4 e5+ Ke4 g4 Kf5 g3 a4 e4 h4 b4 c4 b5 d6 Kc6+ d7 e3 h6 b3 h5 g2 h7 b4 h6 e2 a5 e1R a6 b2 a7 b3 Rh3 Qb6 Qc2 Bd6 Ne2 g1B Ng3 Qb7 Ra4 Be5 Nh5 Bgh2 Re3 Nf6 Nc3 b1B Ng7 b2 Nd5 Ne4 Qd3 f6 Ke6 f5 Ke7 f4 Qc2 Ng5 Qf5 f3 d3 Bc2 Rb4 b1R Bd2 Rd8 h8N Bhg3 h7 Bd1 Ng6 Rh8 Nh4 Be2 Ng2 Rh1 Ra4 Rb6 Rb4 Rf8 h8B Rf6 Bc1 Rfh6 Ra4 R6h3 Rb4 Na6 Ra4 Rb8 a8R Rb3 Ba3 Rc3 Bb4 Qa7 Ba3 Rb6 Rb4 Nb8 Bc1 Kb7 c6+ Ka6 c7 Ka5 d8N Bd7 c5 Be8 c6 Nd7 Rd4 Kb5 Nde6 Qb7 Rc8 Ka5 Ba3 Kb5 Bb4 Ka4 Ra8+ Kb3 Bc5 Kc2 Nh5 Bef4 Be5 Rf1 Nhg7 Rfh1 Bed6 Be5 Rda4 Bd4 Bf4 Be5 Rd4 Bf6+
b2N2K1/nP1RN3/2B2RbP/3b1B2/pNn1Q1q1/bnP3B1/1N5P/k2rrn2 w - - 0 1 illegal: No possible last move
5q1N/pBr2n2/Nk2BRnq/1b2P3/PBq2QK1/R1rn1r1P/1n1P2B1/2R5 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 e5 b4 Bd6 bxc5 dxe4 Bh3 e3 Bg2 e4 Bf1 Be5 fxe5 Qd3 Qe2 Qd6 Qd1 Qd8 Ke2 Kd7 c4 Kc7 a4 g5 h6 f5 c6 b5 h7 g4 c5 f4 h3 g3 Ra3 g2 Rh2 f3+ Ke1 b4 Bc4 b3 Rh1 f2+ Ke2 f1R Qe1 b2 Qh4 Bd7 Ba2 Rf3 Qf4 Qf8 Be6 Ne7 Nc3 b1Q Na2 Qb3 Nb4 Ng6 Bb2 Qh6 Bc3 Rc8 h8R Qf8 Rh6 Qc4+ Kd1 Be8 Ne2 Bd7 Rf1 g1Q Bd5 Qg5 Na6+ Kd8 Bb4 Rc7 Nc3 Qh5 Nb5 e2+ Ke1 Rc3 Kf2 e1N Nd6 e3+ Kg3 Nd3 Bg2 e2 Rc1 e1N Nf7+ Kc8 Nh8 Nb2+ Bf3 Ned3 Bg2 Rb7 c7 Bb5 Qf3 Nc6 Qf4 Kd7 c8B+ Kd8 Bf5 Rc7 Be6 Qh4+ Kf3 Qhf6 Kg4 Q6g7 Rh7 Qh6 Rf7 Rac8 Rf6 Rf7 Nb8 Kc7 Na6+ Kb7 Bf1 Nd8 c6+ Kb6 c7 Rg7 Bg2 Nf7 Qe4 Rd8 c8B Rd4 Qf4 Re4 Rc2 Re3 Rc1 Rf3 Bb7 Nd6 Rg1 Rc7 Rc1 Nf7
6R1/P2NP3/r1R2r2/1k1K1B1n/rn2B1rR/bqPR3p/1nr1n1QP/B3N3 w - - 0 1 illegal: No possible last move
rN3RQ1/B1n1p1Pq/1nrBRN1k/2R5/1nb1P1n1/r7/P1PR1rB1/1K1n4 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 c5 dxc5 axb4 h4 f5 gxf5 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qb6 Qd3 Qa5 Qd1 Qd8 Kd2 Ra3 f4 Kf8 e4 Kg7 g6 h5 c6 b5 c7 d5 Bc4 b3 Kd3 b2+ Bb3 d4 Qe1 b4 Be3 h4 Kd2 d3 Ba7 h3 Nf3 g3 Bc4 h2 Nd4 b3 Nc6 g2 Qg3 g1R Nc3 b1R Nd5 Rbf1 Rd1 Na6 Kc1 Be6 c8R d2+ Kb2 Rf3 Bf1 Rf2 Rc7 Nb4 f6+ Kh6 f7 Nf6 f8B+ Kh5 f5 Nd7 f6 Nb6 Bg7 Qg8 f7 Qh7 Bh3 Ra8 Be5 Rgg2 Rhg1 Kh6 f8R Rf6 g7 h1N Nb8 Nf2 Rc5 Rg6 Rgf1 Ng4 R1f6 Rf2 Bg2 Bg8 Qd3 Bf7 Qc4 Bg8 Rf5 Rc6 Bd6 Be6 Re5 Bf7 Re1 d1N+ Kc1 Bg8 Re2 Be6 Nf6 b2+ Kd2 b1N+ Kc1 Bd5 Rd2 Nbc3 Qb3 Nb5 Kb1 Be6 Qc4 Nc7 Qd5 Bc8 Qg8 Ba6 Re6 Bc4
B3q1q1/B2K2br/2P1P2n/1NpBb3/2PB1Q1N/4qPN1/R2r1b1R/1bk4q w - - 0 1 illegal: No proof kernel
6Kq/2P1bR1N/P1pb1r2/2kB1RB1/1N2B2P/2r1P1n1/1nprn1b1/4RR1Q w - - 0 1 illegal: No possible last move
4r3/6q1/NrPR1PRP/p3q2B/1rnQ2B1/1nbbR3/k4pPN/B1Kb1B2 w - - 0 1 illegal: No proof kernel
2nNbn1R/5prP/1b1BP1Q1/q3rPR1/Nq1B3b/1n6/2p1R1Pk/2N2K1N w - - 0 1 illegal: No proof kernel
5qk1/b1R1pN2/2RN4/nrPnr1B1/1b1PP3/1P1B2QK/n2R1pNq/3N1q2 w - - 0 1 illegal: No proof kernel
K3Rr2/1np1qb1Q/4b2N/rpPR2q1/5nB1/1nRb1BP1/PP1k4/1B1BN3 w - - 0 1 illegal: No possible last move, all moves rejected
6rn/K1pq1q2/4P1R1/nb4Pk/2nbP2p/PN1RB3/Q1rRbRB1/5NN1 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 e4 b5 Ke2 f5 Kd3 Kf7 g4 Kg6 e6 h5 d6 f4 d7 f3 a3 h4 Qc2 b3 Ra2 b2 Rh2 b4 Kc4 b3 Kb5 f2 d4 Bg7 d5 Rh5 d6 Nh6 Be3 Nf7 Bg2 Nh8 Nd2 b1N Nf1 b2 Qb3 Qf6 d8N Bd7+ Nc6 Qf7 Qd5 Be8 d7 Bd4 Na5 Nd2 Nb3 Nc6 d8R b1Q Rc2 Rb8+ Ka6 Nc4 Rd2 N6a5 Rd6 Qd1 Rd7 Nb6 Ka7 Rc8 Rd6 Bb5 Qc4 Rg8 Qe2 Kg7 g6 Rc5 g5 Rc2 Rd3 Rc4 Qa2 Rc2 Ng3 f1B Rd5 Be2 Nf1 Bb2 Rd2 Nbc4 R5d3 Ba4 Rh3 Bd7 Rf3 Bb5 Rf2 Bd4+ Nc5 Qf3 Rc3 Be5 Rd6 Re8 Nb3 Qf7 Rd7 Qd6 Rd8 Qde7 Rd2 Qd7 Rcd3 Bd4+ Nc5 Kg8 g7 Kh7 g8R Rc8 Re8 Kg6 Rg8+ Kh5 Rg6 Bb2 Nb3 Rg8 Nc1 Bg7 Nb3 Bd4+
bBr3q1/QP1rB3/3bp3/2K2N1b/NRPNR3/pB1P3n/2P1N1qk/1qn5 w - - 0 1 illegal: No proof kernel
n5kN/1P1R2b1/pK6/BN1qPbN1/1PB4B/1r1n1rq1/b1p4P/2R1Bq1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 d4 g5 b4 f5 e4 Kf7 h6 a6 b6 f3 Ke3 f2 e5 f4+ Ke4 c4 b7 c3 h7 g4 d6 f3 Kd5 g3 Kc5 g2 d5 c2 Bf4 Bg7 d7 Nf6 d6 Nd5 Na3 Nc7 Bb5 f1Q Rc1 f2 Nf3 g1Q Bd2 Qg3 Be1 Qg8 d8B Nd7+ Kc6 Nc5 d7 Nd3 Bh4 Rb8 d8B Bf5 Ng5+ Kf8 Nf3 Qd5+ Kb6 Rc8 Rg1 Kf7 Rg2 Rf8 h8N+ Kg8 Bc4 Rf7 Bde7 Rcf8 Nb5 Rf6+ Bd6 Rg6 Rg1 Rg4 Bc5 Re4 Ng5 Re3 Ka7 Rf6 Bb6 Rf3 Ba5 Rc6 Bb3 Rc3 Bc4 Rb3 Kb6 Qfg2 Na7 f1B Nb5 Qe2 Rh1 B1h3 Rg1 Qf1 Rg2 Be6 Rf2 Bhf5 Rd2 Rf4 Qf3 Bf7 Qg2 Rf3 Qh1 Qc6+ Ka7 Nf4 Rd3 Rc3 Rd5 Nd3 Bb3 B7e6 Rd4 Bc4 Rd7 Qd5 Ba4 Ba2 Bb3 Rf4 Bc4 Rf3 Kb6 Ra3 Na7 Rb3 Nb5 Na8+
2bbR1NR/1pq3r1/Q1PP2Bq/2B2P2/2pK1kr1/1bR1n3/3qB1P1/4RNn1 w - - 0 1 illegal: No proof kernel
1K2Rbn1/P1P2pR1/3q1q2/B1q3QP/2bBN3/1B1P1NR1/rp1br1B1/2k3n1 w - - 0 1 illegal: No proof kernel
RBbnB3/PP1Q2N1/N2N4/1R2K1nr/4rB1r/kpp2PqP/1b2N3/q1n5 w - - 0 1 illegal: No proof kernel
1BQB4/p1q2Kb1/1n1R4/1P1r4/Nqb2PPR/bn4NN/1P3rp1/3kqBN1 w - - 0 1 illegal: No proof kernel
b4n2/BQ1BNP2/1prkP1r1/pR3PK1/8/P3R3/1rbN1R1r/3rnBRq w - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 exd4 gxf5 g5 h4 g4 Ba3 Be7 Bc1 Bg5 hxg5 Kf8 Rh3 Ke7 Rh1 Ke8 Kd2 Ke7 c4 h5 e4 d5 f4 a5 e5 d3 Ke3 g3 c6 g2 c5 d2 g6 h4 c7 h3 c6 h2 a3 Qd7 g7 Rh3+ Qf3 d1R e6 Ra6 f6+ Kd6 f5 d4+ Kf4 d3 f7 d2 Nc3 Nh6 g8R Ng4 Ra2 Ne3 Rg3 Nc2 Nd5 Ne1 Kg5 Qd8+ Ne7 Qh8 Qe4 Nd7 Re3 Nf8 Nf3 Rb6 Qb1 Rb2 Rg1 h1R Qe4 Bd7 c8B R1h2 c7 Bc6 Bd7 b6 c8R Bb7 Rc5 Ba8 Qb7 Rh4 Rb5 Rc4 Re4 Rc6 Re3 Rb3 Bb2 Qh3 Bd4 Rb2 Bg7 Ra1 Bd4 d1B Nd2 Qh7 Rb4 Bc2 Be5+ Kc5 Bc7 Rd1 Bb8 Qh3 Ba7 Kd6 Rb5 Qf3 Rh1 g1R+ Bg2 Rf1 Rg1 Qd5 Bh3 Qh1 Bg2 Rf3 Bf1 Rg3+ Kf4 Bb3 Nf3 Rbb1 Rf2 Bc2 Nd2 Rg5 Rg4 Rg6 Rg1 Rgh6 Kg4 Rb2 Kg5 Rg6+
2B2krN/1NNP1qn1/1n2pB2/R1pr2rb/4r2b/2BPKP2/1P5Q/r3B1R1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 h5 g4 a5 g5 c5 g6 e6 f6 h3 d6 h2 b6 h4 b7 h3 f7+ Kd7 f3 a4 g7 a3 Nc3 a2 Nd5 Qb6 Ke3 Qc6 Nc7 Qa6 Qc2 Be7 f8B Qa7 Ba6 Nf6 g8N Nh5 d3 Bh4 Ne2 Ng7 Nd4 Rh5 Ne7 Rg5 Rg1 h1R Ndc6 h2 Na5 Kd8 Qg2 Bd7 Ng6 Be8 Bd2 Nd7 b8B Nb6 Nh8 Bh5 Bc8 Qb7 Bc3 Rd5 Nb5 Qf7 Be7+ Ke8 Bef6 Kf8 Nb7 Ra4 d7 Re4+ Kd2 Rg5 Bg3 Rd5 Nc7 Rg5 Rac1 a1R Be1 Ra8 Ra1 Rd5 Rf1 Rg1 Ra5 h1R Qe2 Rgg5 Rg1 Rh3 Qh2 Rhg3 Rb5 Ra1 Ra5 Ne8 Qe2 Rg8 Qf2 Ng7 Qh2 Rc4 Ke2 Rgg5 Ke3 Re4+
R2bR2N/1QPP3p/3rR2P/r1p1nN1N/5qn1/nK6/nPB2N1b/1n2Bk2 w - - 0 1 illegal: No proof kernel
K3n3/p2knnB1/P5N1/B2N2rb/Np2P3/b4NPP/n2Q1R1n/r1R1qB2 w - - 0 1 legal: proof: d4 g5 b4 c5 bxc5 e5 Ba3 exd4 Bb2 Be7 Bc1 Bf8 Nc3 h5 Nb1 g4 Ba3 g3 fxg3 h4 Bc1 h3 gxh3 Rh5 Qd2 Rh6 Qd1 Rh8 Kf2 f5 Kf3 d5 c4 b5 a4 f4 c6 d3 a5 d4 Ke4 d2 a6 f3 c5 d3 c7 f2 c6 Rh5 Nf3 Bd7 c8N Ne7 c7 Bg4 Nb6 Rg5 c8N Nd7 Ra2 Rb8 Na4 Ne5 Nbc3 Bh5 Nd5 Qa5 h4 Kd8 h3 Kd7 Kd4 Rb6 Kc5 Nf7 e4 Rf6 Qc2 d1N Bd2 Nc3 Be1 Rb6 Qd2 Rf6 Rc2 Na2 Rh2 Rff5 Rc1 Rf4 Be2 f1N Rf2 Nh2 Bf1 Nf5+ Nce7 N5d6 Ng6 Rf6 Qc3 d2 Qc2 d1N Qd2 Kc8 Kc6 Ne3 Qd4 Kd8 Qd2 Ne8+ Kb7 Kd7 Kb8 Nf5 Ka8 Bg4 h5 Ne7 h6 Bh5 h7 Rc6 Rb1 Rc1 h8B Qc3 Bg7 Qe3 Rb3 Ra1 Rb1 Qc3 Qe2 Qc1 Ba5 Qe1 Rc1 b4 Bh6 Bg7 Qd2 Bb2 Bg7 Ba3
4k1B1/4P2R/b1b1pn1R/R2r2QP/1N4Pr/b1b4B/p1rNB1KP/1nB3q1 w - - 0 1 illegal: No proof kernel
2k2B1r/3p2B1/3b2K1/Rr2b1nR/PNpn3P/bQ1Pb1Rn/1PB5/1BN1q3 w - - 0 1 illegal: No proof kernel
bN5B/2PpnQ2/Pn1R1P2/1B1R3N/1KB3B1/1N1p1b2/2P1n1b1/rqbrk3 w - - 0 1 illegal: No proof kernel
1R1bR3/1BPp1r2/P1p1r1Nk/3B3B/1b1n2q1/1rnNP1r1/2P1N1Q1/2B1Kn2 w - - 0 1 illegal: No extended proof kernel
r1Nb1R2/2p1B1r1/NN1B1nkP/1PP5/6np/1q1r3b/3PK1b1/1QRb1RR1 w - - 0 1 illegal: No proof kernel
bN4R1/r3q1Qn/PR4r1/rPR1n3/6q1/kP1K1pB1/B1p4P/1r1NbB1B w - - 0 1 illegal: No proof kernel
n2RN1Q1/B2r1BpP/1b4bk/1NP2qpP/1PqR3n/1Br5/5nnN/1KN5 w - - 0 1 illegal: No proof kernel
3q1kB1/4np2/b1KRpq1q/6NN/1P2r2b/2Rnq1P1/1PBN1BrP/4Q1B1 w - - 0 1 illegal: No proof kernel
2rR2Bk/4Pqn1/q1b1bp2/B3P3/Rb2QNp1/n1PN1N2/1R1PK1r1/N5b1 w - - 0 1 illegal: No proof kernel
1BNRq1R1/1q1PN1q1/P1R1p2N/4nrQ1/1K1P1b2/1b1BPn2/1r1k1p2/5q1R w - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 g5 fxg5 Na6 gxh5 Nb8 b4 axb4 d4 Kd7 Kd2 Kd6 h4 c5 a4 f5 g6 b5 g7 c4 e3 b3 Kc3 b2 h6 f4 h7 f3 h5 b4+ Kd2 c3+ Kc2 f2 Kb3 c2 a5 Nd7 h6 Qe8 a6 Ne5 Bd3 Rb8 Na3 Be6 Qg4 Nf3 Ne2 Nf6 g8N Nd7 Qg5 Nde5 Nf4 b1Q+ Bb2 c1Q Ng6 Qg1 Nb5+ Kd7 Nd6 Qbf1 Ka4 b3 Ba3 b2 Rc1 b1Q Nc8 Rb2 d6 Bb3+ Kb4 Ke6 d7 Kd5 Rc6 e6+ Kb5 Nh2 Bd6 Nf3 Bb8 Bd6 Ka5 Bc7+ Kb4 Qgg2 Be2 Ke4 N6e7 Ne1 Bd3+ Kf3 Nf6 Rf8 Ng4 Rf5 h8R Qgg1 h7 Qg3 Be4+ Ke2 Rg8 Kd2 h8R N1f3 Nh6 Qgg2 Bd3 Qgg1 Qh4 Qg7 Qh5 Nc4 Qg5 Bf4 Rf8 Nce5 Rhg8 Qh5 Rd8 Qe8 Bc4 Qe4 Bd3 Qd5 Rc7 Qa8 Rc6 Qb7+
1R1qNq1r/2p4P/b3p3/2n2NbB/n1P2B1N/1R2P3/1B3kPQ/2nnr1NK w - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 f4 h6 fxg5 d4 gxh6 Be6 Qb3 Bc8 Qc3 dxc3 Kf2 Kd7 b4 Ke6 d4 Kf5 h4 Ke4 b6 a5 e3 f5 b5 a4 d5 e6 d6 a3 h7 c2 h5 a2 d7 f4 h6 f3 b7 Nc6 b8N Bb4 b6 Ne5 b7 Nf6 Be2 Ng8 Bb2 c1N Nc6 Ng6 b8N N8e7 Nd4 Nd5 Nf5 Ne5 Kg3 f2 Kh2 f1Q Bh5 Qf2 Nd2+ Kd3 Rb1 a1N Ndf3 Nab3 N3h4 Ra6 Ra1 Be7 Ra3 Rd6 Ra8 Nb6 Ra3 Qe8 d8B Na4 Nd7 Bg5 Nf6 Ba6 Be7 Rd4 Bd6 Qd8 Ne8 Rf4 Bc3 Nbc5 Bb2+ Kd2 Rb3 Ned3 Rb8 Rd4 Bf4 Ke1 Rb3 Qf3 Rb8 Nf2 Rb3 Rg8 h8Q Nd1 h7 Rd6 Qe5 Kf2 Bg3+ Kf1 Rb8 Rd4 Bc3 N1b3 Nh6 Qf8 N6f5 Nf2 Ngf3+ Ke2 Rb1 Rd1 Ng1+ Kf1 Bd4 Nc1 R1b3 Re1 Bb2 Nd1 Kh1 Rh8 Bh2 Qd3 Qg3 Qd5 Qh3 Qd7 Bf4 Kf2 Qh2 Qd8
2Rr2Bb/rp2K2P/Bp6/Q1rn2P1/q3nrb1/1P2N2N/3P1BR1/B1k2q1N w - - 0 1 illegal: No proof kernel
3n1brN/p1kBn1nB/P6P/p1q2RR1/4Kb2/r3NNP1/q2PQ2B/5B1n w - - 0 1 illegal: No proof kernel
1q6/Pq3q1n/1QR4B/pK2pP1B/1q1rPRP1/1N1bk3/2R2n2/RB3qbN w - - 0 1 illegal: No possible last move
R5B1/4k1n1/brP2N2/r1pqPB2/1BPprRKP/q3R1b1/1Q6/BrN3r1 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 fxe5 Qf6 d5 Nc6 dxc6 Qd8 Kf2 g5 Kg3 a5 c4 d5 e4 f5 b4 a4 h4 a3 e6 a2 e7 Rb8 b6 Rb7 b5 Rh6 Rh3 Re6 Ne2 Nf6 Qb3 d4 Nbc3 Qd5 Bb2 Kf7 e8B+ Ke7 Bf7 Ne8 Nc1 Ng7 Bg8 Re5 Rb1 a1R Bd3 Ra5 Ba1 Re6 Qb2 f4+ Kf2 g3+ Kf3 g2 Kg4 Rb8 b7 f3 b6 f2 Re3 f1R Bc2 Ke8 Bd3 Bd6 Bc2 Bg3 e5 g1Q Bd3 Rg6+ Bf5 Ke7 Ne4 Qf2 Nf6 Qg1 Rf3 Qe3 Rf2 Qa3 Rf4 Rba8 b8B Ba6 Bc7 Rb8 b7 Re1 Na2 Re4 Re1 Bb5 Re3 Ba6 Kh3 g4+ Kg2 Bf2 Nc1 g3 Kf3 g2 Bb6 g1R Bc7 Re8 b8R Bg3 Ra8 Rb8 Bb6 Ra4 Ba5 Rb6 Bb4 Ra5 Nh5 Rf6 Kg4 Rf8 Nf6 Rfb8 Bc3 Rb3 Bb4 Rb6 Qe2 Rb1 Qh2 Rb8 Qb2 Rb6
2q2R1R/2kqNb1p/Q1N1bpP1/2r1R1qP/B1r4B/2N5/1PRnKP2/1q3q2 w - - 0 2 illegal: No proof kernel
1K1b2B1/2n1B1Pp/p1N1RR1N/1P3q1P/b3rk2/2q1n1Rn/1QP1R3/nN2n3 w - - 0 1 legal: proof: e4 c5 f4 d5 a4 b5 axb5 g5 fxg5 d4 Bd3 a6 Be2 Ra7 Bf1 Rd7 d3 Rd5 exd5 c4 Qh5 cxd3 Qf3 Qb6 Qd1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 e5 h4 d2 b4 f6 g4 d3 b6 Bh6 b5 Qc7 b7 Qc5 g6 Bg5 h5 Qc3 g7 Be6 Nh3 Nd7 b8N Ne7 Rh2 Re8 g8R Bf7 Qe1 d1N Re2 d2 Nc6 Ne3 Nf2 d1N Rf8 Bh4 g5 Bg8 g6 f5+ Kf3 f4 Ke4 f3 g7 Bf6 Ng4 f2 Ra3 Bg5 Bg2 f1Q Nh6 Be6 Rf6 Nf2+ Kf3 Nh3+ Ke4 Bh4 Bd2 Bg5 Qc1 Qf2 Qb2 Bh4 Rg6 Qf7 Rf6 Nc5+ Kf3 Nb3 Ke4 Na1 Bh1 Kc5 d6 Bb3 d7 Ba4 d8R N7d5 Rdd6 Nc7 Rde6 Kc4 Be1 Bg5 Bh4 Qg6+ Rf5 Bd8 Be7 Qf7 Rff6 Qf8 Kf3 Kd5 Rb3 Ng2+ Kg4 e4 Kf5 e3 Nd4 Kc4 Ke5 Qf7 Kd6 Qf8 Ref2 e2 Nc6 e1N Rfe2 Ne3 Kd7 Qf7 Kc8 Qg6 Kb8 Qf5 Nb4 Kd4 Bd5 Qg5 Bc4 Qe5 Nc6+ Ke4 Rd6 Qf5 Bg8 Kf4 Ra3 Qc5 Rad3 Qc3 Rde6 N3g2 Rg3 Ne3 Bc5 Re7 Bb4 Rd7 Ba3 Rd4 Be7 Re4
1Rqn1RR1/2PNr3/2qRbN1r/3BPBn1/pQr5/3p1P2/Pr1BK2k/r7 w - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Be7 h4 fxg4 Ba3 g3 Bb2 g4 Bc1 Bg5 hxg5 Kf8 Nf3 Ke7 Ng1 Ke8 c4 Kf7 e4 Ke6 c6 d5 c5 a5 c7 h5 g6 b5 c6 d4 g7 a4 Qd3 h4 Nf3 b4 Ke2 b3 Qa6 g2 Qb6 g1R Kd1 b2 Bd2 g3 Qa6 g2 Qb5 h3 Qb7 h2 Ke2 Ra7 Nc3 b1R Qb4 Rb2 Rb1 Nh6 g8R Nf7 Nd5 Rh6 Nf6 Ng5 Rf8 Bd7 c8B Qe8 Bb7 Qc8 Ba8 Rb7 c7 Nc6 Rg8 Nd8 Rf8 Rb5 Bc6 Rc5 Bd5+ Ke7 e6 Kd6 e7 Be6 Qb7 Rc4 Ne5 Rc6 Ned7 Rc4 Nb8 Ke5 e8R Rh7 f3 Rd7 Kf2 Re7 Bd3 Rgc1 Rg1 h1R Ke2 Rh6 Qb4 Rf1 Rh1 g1Q Rg8 Qg4 Ref8 Qh5 Rh2 Qe8 Bc2 Qc6 Rg2 Ngf7 R2g6 Rg1 Bc3 Kf4 e5 Rc1 Nbd7 Ng5 Bd2+ Kg3 Bf5 Kh2 Ne4 Bf7 Rd6 Be6 Nef6 Rb3 Rb2 Ra1 Rb1 Rb2 Qa5 Rbc2 Rb8 Rb2 Qb4 d3+
2B1q3/1N1N1RQP/3r1nK1/1P1BB1p1/2pnrNkq/1Bn4b/4nPPn/5R2 w - - 0 1 illegal: No proof kernel
2rN2Nq/5nb1/1B1kbp2/1PnB1BR1/1q2p3/2PB3R/QPN2PK1/1nn2n2 w - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 g5 hxg5 b5 axb5 Ra6 Rh4 Rd6 Rh6 cxd4 Rh1 d3 Qe2 d4 Qd1 Rd5 exd5 Bg7 Na3 Bh6 Nb1 Bf8 g4 Kd7 d6 e5 g6 h5 g7 h4 g5 a4 g6 e4 Ne2 h3 Rh2 a3 Bf4 a2 Qd2 f6 Na3 Na6 Be3 Qa5 Nc3 Qb4 Nd5 Nh6 g8B Nc5 g7 Nf7 Bh7 Ke6 g8B Bg7 d7 Kd6 d8N Be6 Rg2 h2 Bf5 h1Q Rg5 Qh3 Rb1 a1N Ne7 Nab3 Be2 Qh6 Kf1 Nc1 Kg2 Qh4 Qc3 d2 Qc4 d1N Bd3 Nc3 Qa2 Qh6 Ra1 Nb1 c3 Qh4 Nc2 Qh7 Bf1 d3 Bd4 d2 Bd3 d1N Be3 Na6 Ba7 Nc5 Bb6 Ne5 Bf7 Qh4 Ng8 Ne3+ Kg1 Nf1 Kg2 Bd7 Bfc4 Nf7 Bd5 Be6 Ne7 Rf8 Ng8 Nbd2 Rb1 Qh8 Ra1 Ne2 Re1 Nc1 Re3 Nb1 Rh3 Re8 Nc6 Ra8 Nd8 Rc8
1bb5/4r1B1/p2PkN2/PB1n3B/b2Q1RP1/r2NP1pK/Rq2B3/Rq1q3b w - - 0 1 illegal: No proof kernel
1NqB1b2/R2q1PBk/1b1P2np/RrQ5/2K4P/4P1n1/b3Np2/2BBn1Rb w - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 a5 cxd5 b5 axb5 Ra6 Ra2 Rf6 Ra3 exf4 Ra1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qf6 Nh3 Qg5 Ng1 Qd8 d4 Kf7 Kd2 c5 Kc3 g5 b4 Kg7 h4 c4 d6 f2 d5 f3 d7 a4 b6 h6 b5 a3 b7 g4 d6 a2 b6 g3 f6+ Kh7 f7 g2 Nd2 Nf6 Nb3 Nc6 b8B Ne5 b7 Nh5 Qe1 Ng3 Nd4 Ng6 Nc6 Qe8 d8B Qd7 Kd4 c3 Ba7 c2 b8R Bb7 Qa5 Ba8 Rb7 Rg8 Ba3 c1Q Nb8 Qcc8 Bc1 Rg7 Qc5 Rg8 Nh3 g1B Nf4 Rg7 Bh3 f1B+ Kc4 Bd4 Bf5 f2 Bc2 Bh3 e3 Be6+ Nd5 Rg8 Rg1 Rh8 Bd1 Rg8 Rab1 a1N R1b5 Nc2 Ra5 Ne1 Bab6 Rg7 Rba7 Bc6 Bf6 Ba8 Bbd8 Bc6 Qb5 Bb6 Qc5 Rg8 Bg7 Ba8 Kc3 Rh8 Nf4 Ba2 Kb4 Bh1 Ne2 Be7 Ba1 Re8 Bab2 Bf8 Bg7 Re5 Kc3 Bb1 Kc4 Rd5 Qc7 Rb5 Qc5 Ba2+
3b3n/1r3B2/bNp2B1r/3P2K1/N1P2P2/2r1p1b1/B2PRr1R/N1BQq1kq w - - 0 1 legal: proof: g4 b5 e4 g5 h4 f5 a4 d5 axb5 Nc6 exd5 Nd4 Rh2 Ne6 Rh3 fxg4 Rh1 g3 Ra4 g4 Ra1 Ng5 hxg5 Ba6 Rh5 Bb7 Rh1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 a5 c4 e5+ Ke3 Kf5 f4 h5 b4 a4 b6 a3 b7 a2 b8B e4 b5 h4 b6 g2 b7 h3 g6 h2 g7 c6 Ne2 g1R Na3 g3 Rb1 Kg4 Rb5 a1R Nb1 g2 Na3 Kh3 Be5 Be7 b8N Rb1 Rb4 Ba6 Nc3 Nh6 g8B Nf7 Rb7 Qe8 Nc2 Rh6 Bf6 Bd8 Nd7 Nh8 Bd3 Rf1 Na4 Rf2 Na1 g1B Bf7 Kg2 Ndb6 Rb8 Rd7 Rb7 Re7 Rb3 Kd4 Ra3 Bb1 Rc3 Re5 Qe6 Ba2 Qe7 Bg7 Qh4 Bf6 Qg3 Re7 Qe3+ Ke5 Qe1 Kf5 e3 Kg5 Rf3 Re8 Bf2 Rg8 Bg3 Rg7 Rf2 Rh7 Qe2 Re1 Qf1 Re2 h1Q Rg7 Qe1 Rg6 Rh7 Rh6 Kg1 Rh2 Rh6
B2rqB2/P2n2qp/5n2/p3rq1q/P5kP/K1BPRb2/5RNr/R1QR2N1 w - - 0 2 legal: proof: e4 d5 exd5 g5 c4 b5 f4 bxc4 fxg5 e6 b4 Qd7 b5 Qd8 Nc3 a6 Nb1 Bc5 Ne2 Be3 Ng1 Ba7 b6 Qd6 bxa7 Qd8 h4 Kd7 a4 c5 g4 f5 d3 f4 Kd2 f3 Kc2 a5 Kb2 e5 d6 Ke6 g6 e4 g5 Kf5 g7 e3 d7 c3+ Ka2 c2 g6 e2 Kb3 e1Q Nh3 f2 Bd2 c1R Bc3 c4+ Ka3 Qc7 d8B Bb7 Ng1 Bf3 Nd2 Nf6 g8R Rc2 g7 Kg4 Qc1 Nbd7 Rf8 Qe8 Bg2 f1Q Be7 Rd8 Bd6 Qfe2 Nf1 Q2e6 Rf7 Qf5 Bf8 Qce5 Re7 Qeh5 Rf7 Qe8 Re7 Rg8 Re3 Rb2 Rh2 Rb5 Bh1 Rd5 Rf2 Re5 Bcb4 c3 Bg2 c2 Bc3 Bd1 Ba8 Bf3 Ng3 Rb8 N3e2 Rb2 Nf4 Rh8 Ng2 Rg8 Qd1 c1Q Qd2 Qe1 Qc1 Rh8 g8R+ Qeg6 Bfb4 Qg7 Rb8 Rd8 Bf8 Rc2 Rb2 Qe2 Rf1 Rd2 Rd1 Qe1 Nf4 Rh2 Ng2 Qe8 Rf2 Qd2 Ree2 Qdh6 Re3 Qhh5
N5bN/k4n1r/b1q2pqB/P1n2B1B/R2P4/5PQP/KR1pBq1b/2R2q2 w - - 0 1 legal: proof: d4 c5 dxc5 h5 b4 a5 g4 axb4 gxh5 d5 e3 b5 Bd2 d4 Bc1 d3 Qe2 Ra7 Qd2 Rd7 Qd1 Rd4 exd4 Bd7 Bg5 Bh3 Bc1 Bc8 Kd2 Kd7 a4 Kc6 c4 Kb7 f3 e5 h3 g5 h6 f6 a5 e4 h7 g4 c6+ Ka7 c5 g3 c7 g2 c6 b3 Kc3 b2 Kb3 e3 Ra4 e2 Nd2 e1Q Ne2 b1B Nc4 g1Q Nf4 b4 Ng6 Qgf2 Be2 Qd5 Bh6 Ba6 c8B d2 c7 Qef1 Bf5 Bd6 c8B Nd7 Qe1 Qc6 Nb6 Bh2 Na8 Nc5+ Kb2 Be4 Ka2 Bed3 Bce6 Bdb5 Bf7 b3+ Ka3 b2 Ka2 Qe3 Qg3 Qef2 Nf8 Bd3 Bh5 Bc2 Ng6 b1Q+ Ka3 Bb3 Rg1 Q1g2 Rc1 Qd3 Kb2 Qgf1 Ka1 Ne7 Kb2 Nc8 Ka3 Nd6 Kb2 Rb8 h8R Rb7 Rb8 Rh7 Nh8 Bg8 Ka1 Qde4 Rb2 Nf7 Ka2 Qg4 Be3 Qg7 Bh6 Qg6
1b5B/p4qBR/1p3Q1b/rP1qR2B/PRb2NKq/PRn4n/7P/3kqN2 w - - 1 2 illegal: No proof kernel
2qn1NB1/n2pPR2/3R3p/4B1Q1/P4N2/1RnPbK2/rqR3nP/b4qkB w - - 0 2 legal: proof: f4 a5 g4 f5 b4 e5 c3 b5 Bb2 Ra6 Ba3 Rf6 fxe5 f4 c4 Rf5 gxf5 Ba6 Bc1 axb4 Bg2 b3 Bh3 b4 Bf1 Bb5 cxb5 Be7 Nf3 Bc5 Ng1 Bf8 Kf2 Kf7 e4 c5 e6+ Kf6 b6 Kg5 f6 Kh4 b7 g5 e5 b2 e7 f3 e8B b3 a3 c4 d3 h6 f7 c3 e6 c2 Bd2 c1N Bh3 g4 Bb4 Ne7 Nc3 b1N Nce2 b2 Bc3 Qc8 Bg2 Bg7 f8R Nec6 e7 Nd8 Rf7 Nbc6 b8R Na7 Nd4 Ne2 Rb3 Nf4 Qd2 g3+ Ke3 f2 Nh3 f1Q Ne6 Rf8 Be5 Nc3 a4 b1Q Rg1 Qbc1 Ra2 Qb2 Bh1 g2 Qc1 Rg8 Nf8 Bh8 Rf5 Rg5 Bf7 Kg4 Bg8 Bg7 Kd4 Kf3 Rf7 Rg3 Rb6 Ke2 Rd6 Rf3 Ra3 Rf2 Rb3 Kf3 Qd2 Re2 Ng5+ Kf2 Nge6 Qfb1 Rc1 g1B Rc2 Qf1 Qc1 Bf6 Qd2 Ng2 Qg5 Qba1 Rc1 Ra2 Nf4 Bg7 Bf6 Qb2 Rc2+ Ke1+ Ke5 Be3 Kf5 Bh8 Kg4 Bg7 Be5 Bf6 Rc1+ Kf2 Rc2+ Kg1 Rg7 Qbc1 Rf7 Nd5 Bc3 Qa1 Ba5 Bb2 Bc3 Qab1 Bg7 Nc3 Be5 Ba1 Kg3 Qb2 Kg4 Qfc1 Kf3 Qf1+
1R2q1Bn/pPp2nR1/3k3P/1n5K/N3B2q/q1P1nBrQ/1N1B1b1P/2N4b w - - 0 1 legal: proof: g4 e5 a4 b5 axb5 h5 gxh5 Ke7 d4 exd4 f4 Ke8 e4 Na6 f5 Rb8 e5 Rb7 Qg4 Rb6 Qd1 Re6 fxe6 Ba3 Bf4 Bc5 Bc1 Bf8 Ke2 Ke7 Kf3 g5 Kg4 f5+ Kh3 d5 b4 f4 Kg4 f3 h6 d3 b6 d2 b7 d4 b8N f2 b5 d3 b6 Nc5 Be2 f1N Bf3 Bb7 Na3 Qe8 Nc4 Ne4 Ne2 Nd6 Rg1 Nf7 Kh5 g4 Rb1 g3 Na6 g2 Nb2 Ne3 Qf1 d1Q Bd2 Qe1 Nc1 Bg7 Nc5 Qh4+ Kg6 Bf6 Nca4 Bg5 Be4 Bf4 Qf3 Bg3 c3 Bf2 Qh5 Nc4 Qg4 Na3 Qh3 Nb5 Bf3 Nf6 Be4 Nh7 Bf3 Nhg5 Be4 Qf4 Kh5 Rg8 Bf3 Rg6 Be4 Nh8 Bf3 Kf8 e7+ Kf7 e6+ Kf6 Bg4 Ke5 Bf3 Ngf7 Be4 Rg3 Bf3 Qg8 e8B Kd6 Bec6 Qe8 e7 Qb4 Bce4 Qa3 Rd1 g1Q Re1 Qg2 Rg1 Qf1 Rg2 Qe2 Rg1 Qd8 e8B Qe1 Bd7 Qe8 Bdf5 Bd5 Bh7 Bb7 Bg8 Bd5 Bg5 d2 Rg2 d1N Bd2 Rg6 Rg4 Ne3 Rg1 Re6 Rg7 Rg6 Ne2 Rg2 Nc1 Rg3 Bf5 Rg2 B3g4 Bh4 Nbd3 Nd4 Rb4 Rg1 Ndb2 Bh1 Bf3 Qg3 Bb1 Qf4 Bbe4 Bf2 Rc4 Rg3 b7 Nb5 Rd4+ Ke5 Rd8 Qf6 Ra8 Kd6 Rb8 Qh4+
bB2n1R1/1pnP2q1/r3Rq2/PN6/2N1pN1K/2bn1B2/QPP4R/2R1nk1b w - - 0 1 illegal: Other
2QBrB1b/7B/2N3P1/2nN2pk/5bp1/3nnPR1/2KNNRPP/1r1n1b1n w - - 0 1 illegal: No proof kernel
4B1nR/3RNB1q/nnPQ2p1/k3Kr2/B3pN1P/3bB1P1/3P3n/Rn2n1r1 w - - 0 1 illegal: No proof kernel
2nq1B1K/1rbR2N1/1N3N1R/QP2n2R/P1p1bp2/1Pb2P2/n4n1b/3R1B1k w - - 0 1 illegal: No proof kernel
N2R3n/B2nkN1q/B5p1/b1R5/3NPr2/1npPbRPK/b1nP2Qb/6N1 w - - 0 1 legal: proof: h4 d5 a4 a5 h5 b5 h6 d4 f4 d3 cxd3 bxa4 Na3 e5 fxe5 f6 Nb1 g6 Nc3 Ra6 Nb1 Rd6 Qc2 Rd7 Qd1 Rg7 hxg7 Bf5 Nc3 Bg4 Nb1 Bc8 Kf2 c5 Kg3 h5 e4 h4+ Kh2 h3 b4 f5 b5 a3 b6 a2 e6 a4 e7 c4 b7 f4 Qg4 a3 Qe2 f3 Nc3 f2 Qf3 Nh6 g8N Qc7+ Qf4 Nf7 Kg3 h2 Qe5 Rh4 Nh6 Nd7 b8R Nh8 Rb3 Rf4 Nf7 Bh6 Qg5 Qa7 Rab1 a1B Rb5 a2 Nce2 Bc3 Rc5 a1B Kh3 Ba5 Ba3 Be5 Rb8 c3 Nd4 Qc7 Be2 f1N Bg4 Ne3 Be6 Qa7 Bc4 Nc2 Ra8 Bb8 Ba6 Bb7 Qg3 Bd5 Qf2 Ba2 Qg3 Nf6 Bb4 Kd7 e8N Ke7 Nc7 Nd7 Ba3 Rf6 Bb4 Be3 Qg5 Qb7 Qg3 Rf4 Qf3 Ba7 Rd8 Bb8 Na8 Be5 Nge2 Bb8 Rf1 h1N Ng1 Ng3 Qe2 Bbc7 Rf3 Be5 Qf2 Ne2 Ba3 Nc1 g3 Nb3 Qe2 Bf6 Qg2 Bg5 Nge2 Bg1 Bb4 Bh2 Ng1 Rg4 Ba3 Be3 Bb4 Bc7 Ba5 Rf4 Bb6 Qa7 Rb5 Qb7 Ba7 Ba5 Rc5 Qd5 Ng5 Qg8 Nf7 Qh7+
2B3N1/r4n2/1k2pK2/n2PN1BQ/1p4n1/P1N2PrR/2RnP1b1/1Nbrr1R1 w - - 0 1 legal: proof: g4 a5 c4 g5 b4 d5 cxd5 axb4 h4 f5 gxf5 g4 Bh3 Qd6 Bg2 Qf6 Bf1 Qg5 hxg5 Bg7 Ba3 Bh6 Bc1 Bf8 d4 Kd8 Kd2 b5 Kd3 h5 Ke4 c5 Ke5 Kc7 d6+ Kb6 f6 h4 d7 g3 d8R h3 f3 c4 f7 b3 g6 b4 d5 g2 a3 b2 g7 c3 Bf4 c2 Bg3 c1R Bh4 h2 Qb3 Ra7 Qa4 Nh6 g8N Rd1 Qe8 Bh3 Rc8 Re1 Rc2 Nc6+ Ke4 Ng4 Kf5 Bh6 f8N Bc1 Ng6 Na5 Ne5 Rh5+ Ke6 Rg5 Qh5 Rg7 Bg5 Rd1 Nc3 b1N Kf5 Nd2 Nb1 Rf7+ Kg6 Rf4 Kg7 Nh6 Kg6 Rg4 Kg7 Rg3 Kg6 Bc8 Nh3 g1R Nf2 Bh3 Ne4 Nf7 Nec3 Re1 Bg2 Rd1 Kg7 Rge1 Rg1 h1N Bf1 Bf5 Bh3 Nf2 Rh1 Bc8 Bd7 Ng4 Rh3 Ba6 Kg6 e6 Kg7 Bd3 Bc8 Bh7 Bf6 Bf5 Bg5 Nf2 Kf6 Bg4 Rh1 Bh3 Rh2 Bg2 Rh3 Ng4+ Kg7 Rf1 Kg6 Bb2 Kg7 Rc1 Kg6 Ndb3 Nd2 Rh1 Rb1 Rcg1 Rf1 Bc1 Ndb1 Nd2 Rf2 Nh2 Kf6 Rd1 Rf1 Rg1 Rf2 Rge1 Rf1 Bb2 Rh1 Bc1 Rg1 Ng4+
b1q1NK1B/2qp1brp/2b4k/n1Rb1RbP/3PB2P/2B1PbR1/BQ5N/8 w - - 0 1 illegal: No proof kernel
bQ5N/1R1B2R1/pr2N2R/P1K5/n1pP1br1/1P3NPq/4p1n1/rb1B1N1k w - - 0 1 legal: proof: e4 b5 h4 d5 exd5 g5 hxg5 b4 b3 f6 Bb2 Bg4 Be5 fxe5 c3 Nh6 cxb4 Bc8 b5 Ng8 Ke2 Kd7 Kd3 Kd6 Kc4 c5 d4 h5 a4 e4 f4 e5 f5 e3 f6 e4 f7 a6 g6 h4 g7 e2 g3 e1R b6 e3 a5 h3 b7 e2 Rh2 Nd7 b8R Ne7 g8B Nf5 Qd2 Qh4 Qb4 Bh6 f8N Bf4 Nf3 Rh6 Rb7 Qh5 Rh1 h2 Bh3 Nh4 Ne6 Ng2 Nbd2 Rg6 Qb5 Rg4 Bh7 Rb8 Bc2 Rd1 Ra4 Ra1 Rb4 Qf5 Ra7 Rb6 Bd1 Bb7 Nf1 Ba8 Nf8 Qh7 Ng6 Qh5 Nh8 Qh6 Kc3 c4 Rc7 Nc5 Rg7 Qh5 Qe8 Qf5 Rb5 Qe6 Kb4 Na4 Qc8 Rg6 Bf5 Rg4 Qe8 Qh6 Bd7 Qh3 Qg8 Kc7 d6+ Kb7 Bc8+ Kc6 d7 Kd6 d8N Be4 Rf7 Bb1 Ne6 Kc6 Bd7+ Kd6 Nc5 Kd5 Ne6+ Ke4 Rg7 Rd6 Qb8 Rb6 N1d2+ Ke3 Re1 Kf2 Nf1 Nb2 Kc5 h1B Nfg5 Kg1 Rb4 Ne3 Rb5 Ba8 Nf3+ Kh1 Rb4 Rd6 Rb7 Na4+ Kb4 Qh5 N1h2+ Kg2 Rh1 Qh7 Nf1 Rc6 Rh6 Rd6 Rhg6 Kh1 Rf6 Ng2 Rfg6 Qh3 Rh6 Nc3 Kc5 Rc6+ Kb4 Rb6+ Kc5 Na4+
7r/2Rr3p/BN1NN1N1/Bn6/bpbr1R2/Rp1bPKPk/PP1q4/3Q2n1 w - - 0 1 illegal: No proof kernel
1n4BQ/2r2PqN/rP2nN1P/5K2/7b/pB1ppBR1/P3N1Nk/r4nRb w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 h5 cxb5 Nf6 g4 Ng8 gxh5 Bd6 Nd2 Bc5 Nb1 Bf8 e4 Ke7 e6 f6 e5 Nh6 Bf4 Ng8 Bg3 Ke8 e7 Kf7 Bf4 Ke6 Bg3 Kf5 e6 Kg5 Be5 fxe5 Qd5 Kf5 Qd1 Kf6 Kd2 Kf5 Kd3 Kf4 e8B a5 h4 d5 b4 g5 b6 c5 b5 d4 h6 a4 h7 a3 e7 g4 h5 g3 h6 g2 b7 Bg7 b6 Nd7 b8N Bb7 Be2 Bc8 Nd2 Ra6 Ndf3 Ngf6 Nh4 Nd5 Bf7 Qf8 e8B Bb7 Bg8 Ne3 Rh3 Bf6 Rg3 Qg7 Bef7 Nf1 Bb3 Bd5 Bf3 c4+ Ke2 c3 Kd3 c2 Rb1 Nf8 Nd7 c1R Qc2 Be7 Nf6 Nd7 Qc8 Nb8 Qf8 Rc7 Re1 Rc1 Qe8 Ra1 Rd1 Qg4 Ne2+ Kg5 Be4 g1N Nh5 Rb1 Bf7 Ra1 Rh3 Qg2 f4+ Kg4 f5 Ne3 f6 Rg8 h8N Nf3 Rg1 Rg7 N8g6 Ng5 Nf8 Nf1 Nh7 Ne6 Qh8 Bd8 Bg8 Rc7 f7 Be7 Nf3 Bh4 Ne1 Bb7 Rf3 Qg3 Bc6 Kh3 Ke4 d3 N5f6 Kh2 Kf5 Qg7 Rfg3 e4 Bcd5 e3 Bh1 Bd5 Be4 Bc4 Bc6 Bd5 Bb7 Bh1 Bf3 Bg5 Ng2 Bh4
n2N1R1n/1B2RP2/PpNb1p2/pq1r1r2/1B6/PPB2k2/n2b3b/QN1K3N w - - 0 1 illegal: No proof kernel
2N5/1BQP2Pk/rppRPB2/r2RP3/2p4B/4n2R/3b2Nn/2rbqnRK w - - 0 1 illegal: No proof kernel
2N3q1/b2PprR1/k2PN1b1/2n2P2/2Rn4/Pr1p1pQb/1Br4N/2RB1KN1 w - - 0 1 illegal: No proof kernel
NknnB2b/3pQ1P1/4N3/2P3NK/p3prq1/P1Rb2rB/r1PB1NR1/6b1 w - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 g5 hxg5 c5 dxc5 Na6 b4 Qa5 c6 Qc5 bxc5 Nb8 Ke2 Kd8 g4 Kc7 f4 h5 f5 a5 g6 b5 f6 e5 g7 h4 f7 h3 g5 h2 g6 b4 Be3 b3 Bh3 b2 Bd2 e3 Kf3 e2 Kg4 e1B Qe2 Ba6 Nc3 b1R Nd1 Bf2 Nf3 Rb3 Rg1 h1Q Ng5 Bd3 Rg2 Bg1 Nf2 Ne7 g8B Bg7 f8N Nc8 Bf7 Rh5 Rb1 Bh8 g7 Rc3 Rb3 Rh4+ Kg3 Rf4 Be8 Rf5 Kh4 Rf4+ Kh5 e4 Qg4 Qh2 Qe6 Qg3 Qe7 Qg4+ Kg6 Qf5+ Kh5 Ba6 Ra3 Rg3 Rb3 Bd3 Rc3 Na6 Ne6+ Kb8 Rb3+ Nb4 c7+ Ka7 Rc3 Nc6 Rh2 Nd8 Rg2 a4 a3 Rb8 Ng4 Rb2 Nf2 Nb6 c8N+ Kb8 Qf7 Ra2 Qe7 Nc4 Nb6 Nd6 Na8 Nc8 Qf7 Qe5 Qf8 Qf5 Qe7 Qg4+
3BrN2/P2B1P2/1rpN1BPk/1r2Q1pb/nNpqPb2/3R1n2/RbN4K/8 w - - 0 1 illegal: No possible last move
2b1nB1b/PP3rp1/5Brn/b2BN1Q1/1p3qpR/P1R5/KRP1R3/3r1Nk1 w - - 0 1 illegal: Other
K2b1B1N/pn3r2/NR6/B1PP1k1p/P1n5/2Q1P3/b2Np1q1/b1R1nrRR w - - 0 1 illegal: No proof kernel
1nb4B/1n3qB1/1R2N1Np/bB2br1R/P4p2/1P2qBP1/kp3PQK/5N1r w - - 0 1 legal: proof: b4 a5 Bb2 axb4 Bd4 b5 Bc3 b3 Bb2 b4 Bc1 b2 h4 g5 hxg5 d5 e4 b3 exd5 Bg4 cxb3 Bc8 d4 Kd7 g3 Kd6 g6 f5 g7 c5 Ne2 e5 Nd2 e4 Nf4 e3 Bb5 e2 Nf1 c4 Ng6 c3 Rh5 c2 Bh6 Ne7 g8B c1Q Bg7 h6 a4 Qe3 Rc1 f4 Rc2 Qe8 Rc6+ Kd7 d6 Ra5 d5 Qf7 Rb6+ Nec6 Qc2 Be7 Qe4 Bf6 Qg2 Be5 Bh7 Re8 Bh8 Na6 Bg8 Nc5 Bg7 Nb7 Bh8 Kd8 d7 Kc7 d8B+ Kd6 Bdf6 Kc5 d6 Kb4 d7 Ka3 d8N Nb8 Ne6 Ka2 Bfg7 Re7 Bh7 Rd7 Nh4 Re7 Bc2 Rc7 Bd1 Rc1 Ng6 Qc5 Kd2 e1B+ Ke2 Qd4 Kf3 Qe3+ Kg4 Rb1 Bf3 Bd2 Nh2 Rg1 Kh3 Bb4 Ba6 Rc5 Nf1 Ba5 Bae2 Bec3 Kh2 Rf5 Ba6 Be5 Bb5 Rh1+
rN1R3N/n3k1B1/n1B1P2K/2pp1b1N/P3Pq1P/pq1n2B1/2R1B3/1Q1rb3 w - - 0 1 illegal: No proof kernel
q2Rr1B1/q1K4B/1P2Q3/Pk2N1r1/1B2r1Rb/1pp2Pn1/p2PR1b1/1N1n3R w - - 0 1 illegal: No proof kernel
q3NB1r/1B1Nn3/P1KP2RB/2p4Q/1rPp4/1P1qR3/B2pr1n1/k1Nb3b w - - 0 1 illegal: No proof kernel
q1b1KQBr/2B3p1/rNN3P1/nnpNR1P1/1q5k/1bB1P2p/1B1P3R/1n6 w - - 0 1 legal: proof: c4 e5 f4 exf4 g4 d5 cxd5 b5 a4 Be6 axb5 Kd7 h4 Bb4 g5 Be7 g6 Bg5 hxg5 Ke8 Qa4 Bf5 Qd1 Bc8 Kf2 Ke7 Kf3 c5 Ke4 f5+ Ke5 a5 b4 h5 b6 h4 b7 h3 b5 a4 b6 a3 Bb2 a2 Rh2 f3 Nc3 f2 Na4 Na6 b8B f4 b7 f3 Bc7 Nf6 b8N Ne4 Nb6 Nc3 e3 Qg8 Ne2 Nb1 Nc3 Qd8 Bc4 f1B Qe2 f2 Qf3 Be2 Qf5 f1Q Qf2 Bd1 d6+ Ke8 d7+ Ke7 Bg8 Qc4 Qf4 Qb4 Kd5 Qe8 Kc6 Bb3 Be5 Nc7 Qf8+ Kd8 Ncd5 Nb5 Bec3 Ra6 Bd4 N1a3 Re1 a1N Bdc3 Nb1 Rc1 Ba4 Rf1 Nb3 Qd6 Qf8 Rf5 Qe8 Re5 Qf8 Nf4 Qe8 Qf8 Na5+ Kd5 Kc7 Nc6 Qd8 Ke6 Bc2 Kf7 Bd1 Qe8 Kd6 Nfd5 Bb3 Na7 Bb7 Nc6 Qa8 d8B Bc8 Re7 Bd7 Qf8 Bg4 Ke8 Bc8 Rf7+ Ke6 Bc7 Bd1 Bf6 Kf5 Re7 Kg4 Bfc3 Kh4 Re5 Bb3
B2q2RK/6p1/RQ2PP2/P2N1rB1/kq3p2/b1Rbq1p1/4BP1R/1rnn3N w - - 0 1 illegal: No proof kernel
k6K/Bb2Pqn1/Bb1pp1N1/2qP1NN1/4pPP1/7r/1N1Q2Rq/2B1Rn1r w - - 0 1 illegal: No proof kernel
5n1r/BNP4P/N3Bp1q/BbB1qP2/2K1n3/b3pQq1/R1pPrR1R/4k3 w - - 0 1 illegal: No proof kernel
n6Q/k1P1N1p1/rpB2R1R/bn2PRpK/bP4N1/4b1P1/2q2RB1/q1B3r1 w - - 0 1 legal: proof: d4 c5 dxc5 e5 a4 h6 f4 b6 fxe5 Ne7 a5 Ng8 a6 Qc7 Qd2 Qc6 Qg5 Qb7 axb7 hxg5 Kf2 Kd8 Kf3 Kc7 Kg4 d5+ e6 a5 e4 f6 c4 d4 h4 a4 h5 d3 g3 d2 e5 d1Q+ Nf3 a3 h6 f5+ Kh5 a2 h7 f4 c6 Ba3 e7 Nh6 e8B Bc5 Nc3 Ra6 Bg2 Qc2 Nh2 f3 Ng4 Be3 c5 f2 b3 Rf8 h8Q f1Q Rh3 Nf7 Nd5+ Kd8 Ne7 Kc7 Rb1 a1B Rb2 Nd6 Bd7 Nb5 Ra2 Qc3 Rf2 Qc2 Rh1 Bc3 Rh4 Ba5 b4 Qg1 Be8 Nd7 b8R Rf3 Ra8 Nf8 Ra7+ Kb8 Rb7+ Ka8 c7 Rf6 c6 Bd7 Rb8+ Ka7 c8R Ne6 Rd8 Bc8 Rd6 Nec7 Bd7 Bb7 Rf8 Na8 c7 Bc6 Be8 Rf4 Rf5 Rd4 Rdf6 Rd1 Rh2 Qh1 Rh3 Rg1 Rh4 Na3 Bd7 Ba4 Bdc6 Nb5 Kg6 Rd1 Rh6 Qe1 Kh5 Qec3 Bcf3 Qa1 Bc6 Rg1
q1nR3R/1P2B1Rp/1K5P/1PQN1pbk/1r2q3/2BP3q/R4p1r/1bB1n2N w - - 0 1 illegal: No proof kernel
R3brq1/P6r/4N3/3Q1bK1/pnppR1PB/q1B2PN1/Pb2N1kB/4n1B1 w - - 0 1 illegal: No proof kernel
2Nnb1q1/K3prp1/B2n3P/4k1rN/2Q1p2P/P1bR4/2n1nRP1/R1NR2B1 w - - 0 1 illegal: No proof kernel forced: wxDB
3R3Q/1P1Bp1R1/rr3BRp/NPqrbp2/1rN2PK1/5R2/bn2kP1B/7n w - - 0 1 illegal: No possible last move, all moves rejected
R2Q2qN/K1p1n1R1/1PB1Nqq1/3b1P2/1N1ppR2/3Pb3/b2P2n1/r1B3kN w - - 0 1 legal: proof: e4 a5 h4 g5 a4 f5 exf5 gxh4 Nc3 b5 axb5 Ra6 Nb1 Rb6 Nh3 Rd6 Ng1 Rd3 cxd3 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 b4 h5 g4 d5 f6 a4 g5 h3 b6 e5+ Kb5 a3 g6 h4 f7 h2 b7 h3 g7 d4 Qf3+ Kg5 Qd5 Kf4 Nf3 a2 Bg2 Nd7 Ka6 Nc5+ Ka7 Ne7 g8R Be6 b8N Bh6 Rg7 Qg8 Rf1 h1B f8N h2 b5 Bf7 b6 Ne6 Ng6+ Kg4 Rg1 Be3 Qd8 Nf4 Ng5 Rh5 f3+ Kg3 Ne6 Kf2 Nh8 Rh6 Nc3 Rh7 Bh3 Ng2 f4 Rh5 f5 Rh4 Rb1 a1Q+ Na6 Qa3 Rb3 Qd6 Nb4 Rg4 Re1 Rg5 Re2+ Kg1 Ra3 Rg3 Nd1 Rg6 Ng5 Ba2 Rf2 Qf6 Ne6 Rg3 Rf4 Rf3 Bb2 Rf1 Nf2 Ra1 Bg4 Nh4 Ra5 Bhd5 Nh1 Ng2 Bc1 e4 Bd1 Qg6 Ba4 Qf6 Bc6 Qg6 Nf2 h1Q Ra4 Qhh6 Nh1 Qf8 Kb8 Qh4 Ra8 Qhf6 Ka7 Qg8
3r1n1R/q1pP4/N2bpn2/1rq2B2/kB2PPP1/2B1RK1B/1p1N4/n3Q1rN w - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 g5 h3 f5 b3 Be6 b4 axb4 Bg2 Bf7 Bf1 Bh5 gxf5 g4 Na3 g3 Nb1 Bg4 hxg4 Ra7 Rh6 Ra6 Rh1 Ra8 f4 Kd7 a4 h5 d4 b5 f6 e6 a5 g2 Kf2 b3 a6 b4 f7 h4 d6 Kc6 d5+ Kb5 a7 h3 d7 h2 d6 b2 Ra3 b3 Kf3 Rh7 Bd2 Qc8 d8N Qd7 Nc6 Qe7 Nh3 g1Q Nb4 Nd7 Na6 Rh5 Bc3 Ngf6 Qe1 Rd8 a8B Qa7 Nd2 b1N Be4 b2 Nf2 Rf5 Rb3+ Ka4 Bh3 Rb5 Bf5 Na3 e3 Nc2 e4 Bh6 f8B Na1 Be5 Bg7 Re3 Bh8 Bc3 Bg7 Rg1 h1R Rg2 Bh6 Rh2 Rg1 Nh1 Bg5 Bh6 Nf8 d7 Qec5 Bb4 N6h7 Bg7 Be7 Bgc3 Bd6 Bg2 Nf6 Rh8 Qcb6 Bh3 Qc5
4k2B/1rqrb2P/B2p2Nb/4qR2/1K1P1B1p/NN3p2/PQb2P2/nR3Bq1 w - - 1 2 illegal: No proof kernel
Q2qRr2/Pr2BB2/1N4N1/N3rRp1/1p1q4/3BpqPN/1P1k1P1K/n1b4n w - - 1 2 legal: proof: e4 a5 c4 d5 cxd5 g5 h4 f5 h5 fxe4 Qa4+ Bd7 Qxa5 Bf5 Qa7 Bg6 hxg6 Bh6 Kd1 Bg7 Ke1 Bf8 a4 Kd7 d4 Kd6 g7 e5 a5 h5 a6 b5 Na3 c5 Nf3 b4 Qf7 c4 a7 e3 Bd3 c3 Kf1 e4 Kg1 c2 Qb7 e2 Be3 c1Q+ Kh2 e1R Qc8 h4 Ng1 Nc6 Nh3 Nge7 g8B Qd1 Bf7 Rb8 Qb7 Re2 Qa8 Na5 Re1 Nb3 Rc1 Nf5 Rc5 Ng3 Nc4+ Kd7 d6 Rb7 d5 Na1 Rb5 Nh1 Bc5 Bg7 Ra5 Bd4 Rb5 Be3 Ra5 Qb8 Rb5 Bc1 Nb6+ Kd8 Ra5 Rf8 Rb5 Qc8 d7 Kc7 Be7 Qd8 d6+ Kc6 Rf5 Re3 Bb1 Qd5 Bd3 Kc5 Re2 Kd4 Re1 Qc8 d8N Re2 d7 Qdc4 Nf4 h3 Ng6 Q4c5 Bb5 Qc4 Ne6+ Kd3 d8N Kd2 Nc6 Qd8 Nef4 Qcd4 Bd3 Re3 Bc2 Ra3 Bb1 Ra5 Bd3 Re5 Re2+ Kd1 Na5 e3 Rc2 Ke1 Rc8 Kd2 Rb8 Q8d6 Re8 Qf6 Bc5 Qfd8 Be7 Ng3 Kg1 Ne2+ Kf1 h2 Nh3 h1Q+ Ng1 Qh5 Nh3 Ng3+ Kg1 Qf3 Kh2 Nh1 g3 Qfe4 Bd5 Qf4 Bf7 Qf3
5QNN/1q3Pb1/p4bPB/pqRR2p1/BP2nNBK/P1n5/3n3B/2r2b1k w - - 0 1 illegal: No possible last move
bNr2r2/p2rbk1p/1q2nB2/5p2/1P1NQ1KB/3Bq3/1PR1RP1P/NN5b w - - 1 2 illegal: No possible last move, all moves rejected
2QB4/1Bn2B2/1rP4R/3p1qqp/1nP1rP2/1b1R2r1/1p1P1NqK/k2BN1R1 w - - 0 1 legal: proof: e4 b5 h4 c5 b4 g5 hxg5 f5 a3 fxe4 Bc4 Bg7 Bf1 Bc3 bxc5 b4 Nh3 b3 Ng1 Bb4 axb4 Kf8 Rh5 Kf7 Rh1 Ke8 f4 Kf7 Kf2 Ke6 Kg3 Kd5 c3 a5 g6 h5 g7 e5 b5 e3 b6 e4 c6 e2 b7 Kc4 Nf3 e3 Rh4 a4 Ba3 b2 Rh3 Na6 b8R Nc7 Rb6 Rb8 Ne1 Qg5+ Kh2 Nf6 g8B+ Nfd5 Be7 a3 Qc2 a2 Bf7 Rg8 Bd8 d6 Qf5 Be6 Rf3 Nb4 Qh3 Bd5 Qc8 Kb3 Rh3 Bc4 Bd5 Qf5 Be4 Bf7 Bc2+ Kc4 Bd1 Rg3 Nf3 Qc5 Ba4 Rg7 g4 Nca6 g5 Qf5 g6 Rb7 Rb5 Rb6 Re5 Nc7 Re6 Bg8 Bg2 e1Q Bf1+ e2 Rg3 Re7 g7 Re8 Rf6 Re3 Rh6 Be6 Rh3 Qh4 g8B Qhg5 Bf7 Rd3 Rg3 e1R Rg1 Re5 Ne1 Bd5 Be2 Re8 Bb5+ Kb3 Ba6 Rg3 Bb7 Be6 Nd3 Bc4 Nf2 d5 Na3 Re4 Rae1 a1Q Nc2 Qa3 Bd1 Ka2 Re3 Qa6 Ne1 Bb3 Rf3 Qf1 c4 Ka1 Rd3 Qg2+
2q3RQ/1bbp3R/3N3p/k1q3BB/1rnB4/1BR1rpNK/1PP3PP/6rq w - - 0 1 legal: proof: e4 b5 a4 g5 f3 f5 f4 c5 fxg5 f4 axb5 Nc6 Ra3 Nd4 Ra1 Nf5 d4 cxd4 exf5 Qb6 Qf3 Qc7 Qd1 Qd8 Kf2 a5 b6 e5 g6 d3 b7 h6 b8B e4 g7 d2 f6 e3+ Kf3 e2 Kg4 e1R Kh3 f3 Qe2+ Ne7 g8B d1Q Bb3 a4 Ra2 a3 Nd2 Ra4 Ba7 Rb4 Ne4 Nd5 Bd4 Nb6 Bg5 Bd6 Qd3 Rh7 Qc3 Nc4 Bd3 Bb7 Ne2 Rg1 N2g3 Re7 Ra1 Qa8 f7+ Kd8 f8R+ Kc7 Rg8 Qc8 Ra2 Bf4 Nd6 Re3 Bg6 Qe1 Bf7 Qf2 Bh5 Kc6 Ra1 a2 Rd1 a1Q Rd3 Re2 Re3 Ree1 Re7 Re3 Rh7 Qaf1 Bb6 Q1e1 Qh8 Be5 Bd4 Kc7 Bc3 Kb6 Bd4+ Ka5 Nge4 Qa1 Ng3 Rb1 Re1 Qg1 Nf7 Bc7 Nd6 Qa3 Rd1 Qh1 Rd3 Rg1 Rc3 Ra4 Ne2 Qc5 Ng3 Rb4
8/K1PPRNn1/1p2Nr1n/Rb2n2p/rn1Pq2P/Q1Np4/1RB4B/1n3kN1 w - - 0 1 illegal: No proof kernel
1Bk5/B1q1p3/2P2B1P/3rP2N/Br1Q4/p1R1r1pb/2KPnRN1/R3rn1r w - - 0 1 illegal: No proof kernel
kN3Q2/2pb4/1P3R1P/rR1q1N2/1b2b2p/2PrB2p/N1B1P1bB/1nBb1K2 w - - 0 1 illegal: No proof kernel
1k3NN1/1rRp1n2/1p1PBBP1/2RrNB2/Q1Prq3/1qp2B2/r5P1/1b1K2n1 w - - 0 1 illegal: No possible last move
3rqr2/3Q2P1/2N1q1BR/BK3P2/2R1r1p1/p1bpn1rP/b1NPB2k/3B1R2 w - - 0 1 illegal: No proof kernel
1N2Q1Rq/pbB3P1/2BP2b1/RP4r1/p1BK1NR1/Pbb4n/2p2k2/B5qr w - - 0 1 illegal: No proof kernel
2N3b1/1r2n1rB/2PBr1q1/P2NpRp1/1bKQqP1N/R2pP1B1/2N5/1rk5 w - - 0 1 legal: proof: g4 a5 d4 g5 h4 f5 gxf5 c5 dxc5 Nc6 b4 Ne5 h5 Ng6 hxg6 axb4 Kd2 h5 Kd3 b5 a4 e5 c4 Ke7 f4 Kf6 a5 d5 e3 h4 c6 b3 c7 h3 g7 d4 c5 b4 c6 h2 Kc4 b2 Ra2 b3 Nf3 Qd6 Bd3 Ne7 Ra3 Rh6 Nh4 Ra7 Bd2 Bd7 c8N Be6+ Kb5 Rg6 Be1 Bg8 Bg3 Qe6 Qd2 Qf7 Rd1 h1Q Qc3 Qe4 Qb4 Nd5 Kc4 Rh6 Qa4 Qg6 Rh1 Bb4 Bc2 Kf7 f6 Ke6 f7 Ne7 f8B Rb7 Nc3 b1R Ne2 b2 Bd3 Nf5 Bd6 Ne7 Rh2 Rh1 Rh3 b1R Bc2 Bf7 g8N Rh7 Rh2 Rg7 Nf6 Bg8 Nd5 Rhd1 Ng1 Rd2 Ngf3 Rdd1 Ne1 Rd3 Nhg2 Kf5 Rh6 Rdd1 Bd3 Kg4 Nc2 Kf3 Rh8 Rh1 Rh7 Rh6 Rh8 Qf7 Rh7 Re6 Rh6 Qff5 Rf6 Qg6 Rf7 Qef5 Be4+ Ke2 Nh4 Kd1 Bd3 Qe4 Rf5 Bd2 Qb4 Kc1 Qc3 Qg2 Be4 d3 Qd4 Bb4 Rf7 Qf6 Bh7 Qg6 Rf5 Qe4
k1r1Bq2/4nPn1/1Q2b2p/4P3/2qq1KNN/1q2R2P/B1pPNRp1/B4rB1 w - - 0 1 illegal: No possible last move, all moves rejected
NN5R/2nr3P/2p1N1Bp/1QPp3b/1B1K2P1/2n4B/2qP1qRB/1qrqk3 w - - 0 2 legal: proof: f4 d5 g4 e5 a4 exf4 g5 b5 axb5 c6 Kf2 h6 Ke1 Qd6 Nf3 Qg6 Ng1 Qh7 g6 Kd7 gxh7 g5 Nf3 g4 Ng1 Ke8 Nf3 g3 Ng1 g2 Kf2 Bb4 Ke1 Bc5 Ra4 Bb6 Ra1 Ba5 Kf2 Ke7 Kf3 Nd7 Kg4 Kd8 Kf5 Nb8+ Ke5 Ke8 Kd4 Bb6+ Kc3 Bf2 Kd3 Bg3 hxg3 Kf8 Kd4 Bb7 Ke5 Na6 Kf5 Ne7+ Kg4 Nb8 Kf3 Ke8 Kf2 Bc8 Ke1 Ng8 Kf2 Kd7 c4 Kd6 e4 Ke5 b4 Kd4 c5 a5 e5 f5 e6 f3 b6 a4 e7 f4 e8B a3 b7 a2 b5 Nf6 b6 Bg4 Rh2 Na6 b8N Bh5 g4 Nc7 Bg6 Rd8 b7 Rd7 Ne2+ Kc4 Ba3 g1Q+ Ke1 Qd4 Bb4 Qb2 Kf2 Qc2 Bh3 Kb3 Rg2 Ne4+ Ke1 Ra5 Na3 Nc3 Nb5 f2+ Kf1 Kc4 Ned4 Ra3 Rb1 a1Q Ne6 Ra7 Rb2 Qab1 Qc1 Ra1 Rb3 Ne4 Ke2 f3+ Ke3 f1Q Qb2 f2 Ra3 Qfd1 Ra8 Na6 Nbc7 f1Q Qa3 Qf6 Qa5 Nc3 Qb6 Kb3 Qb5 Qf8 Kd4 Kb2 Ra7 Kc1 Na8 Nc7 Ra4 Qe2 Ra2 Kd1 Ra6 Ke1 Ra3 Na2 Rf3 Qed1 Rff2 Qc8 Rf8 Nc3 Rh8 Qd8 Na6 Qh4 b8B Ne8 Bh2 Nc7 Nb8 Qf2+ Ke5 Qbb2 Qa5 Rc1 Qb5 Qg3+ Kd4 Qbb1 Rf8 Qh4 Rh8 Qf2+
6B1/2nnb3/PpkP1nP1/q4pp1/1qb1nN2/2B4r/RP1NNR1B/B4KQ1 w - - 0 1 illegal: Other
R1RbBQn1/2bB4/pP3NPB/3n2K1/1P1Br1r1/1p1Pp1kp/N3bR2/1q6 w - - 0 1 illegal: No proof kernel
B4k1b/2K1pB2/4P3/1QnRRNNp/b1n3P1/3N1p1n/qpr2PrP/1R3R2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 c5 Ba3 g4 Bb4 cxb4 Qc1 g3 Qc3 Bh3 Qxg3 Be6 Qg7 Bc8 d4 b5 Kd2 f5 Kd3 h5 e4 b3 g4 b4 Kc4 f4 Kc5 b2 a4 f3 e5 b3 d6 Rh6 d5 Na6+ Kc6 Rb8 Nc3 b1N Nb5 b2 Qg5 Be6 d7+ Kf7 d6 Rb7 Bc4 Rb8 Ne2 Nc3 Nc1 Nc7 a6 Qe8 a7 Rd8 a8B Ne4 a5 Na6 Rf1 Nd2 Nd3 Rh8 Nd4 Bg7 Rab1 Nf6 Nf5 Nc5 a6 Nfe4 a7 Kf8 Kc7 Qf7 Bb3 Nc4 Ba2 Re8 d8R Bd7 Bb3 Ba4 d7 Rh6 Ba2 Rd6 Bb3 Nb6 Be6 Qg8 Bf7 Bh8 e6 Nc4 Qf6 Ng5 Qe5 Nh3 Qd5 Nb3 Qb5 Qh7 Rc8 Nc5 d8N Rd5 Rb8 Qg8 Rb6 Re5 Rd6 Re1 Rd5 Qh7 Bg8 Rc1 Nf7 Rc2 Ng5 Rd8 Re5 Rd4 Bf7 Re4 Rfc1 Re1 Rd5 Rg1 Rf1 Nd7 Bb7 Rg2 a8R+ Nb8 Ra7 Nd7 Ba8 Nc5 Ra6 Qg8 Re5 Qh7 Rd6 Qg8 Rdd5 Qg6 Ne3 Qe4 Nf5 Qe3 Ne1 Qb3 Nd3 Qa2
q2NBR2/2k1nBr1/1pP1n1bN/P1P1rN1p/2P5/2Rpq1B1/1pB2b2/3KQ3 w - - 0 1 illegal: No proof kernel
2Q5/1PB1nP1r/qNR2N1b/1p6/pPqBb3/2p1pN1K/1PB2r2/2k1nN1R w - - 0 1 illegal: No proof kernel
1N6/2R4N/1PpNRQKR/b1Bp3p/1n4kP/3n1rp1/rPP2R1n/2qrB3 w - - 1 2 legal: proof: d4 e5 dxe5 f5 e4 b5 a4 Bd6 axb5 Nh6 e6 Ba3 e5 Ng8 Bd3 Bf8 f4 Bd6 g4 Nc6 Be4 fxe4 f5 Bf8 e7 Kf7 Qd3 Bb7 Qd1 Nb8 f6 Bd5 Bf4 Be6 Bc1 Bf5 gxf5 Qc8 Nd2 Qe8 Nb1 Qd8 Kd2 g5 Ke3 a5 e8R d5 b6 h6 Nh3 a4 Qf1 c6 Na3 g4 Kf4 e3 Nc4 a3 Re6 e2 Bd2 g3 Be1 Bb4 Nd6+ Kf8 f7 Kg7 f8N a2 Nd7 Ra3 f6+ Kg6 f7+ Kh5 Kf5 Nf6 f8B Ng4 Ng5 Na6 Nb8 Ba5 Nh7 Nb4 h4 Rd3 Rh2 Rd1 Rf2 Nh2 Rg6 Rg8 e6 Rg7 e7 Rf7+ Rf6 Qc7 e8R Qe7 Rf4 Qe3 Rf2 Qc1 Be7 Rf8 Rc8 Rf7 Rc7 Rf8 Rb1 Rf7 Bf8 a1R Be7 Ra4 Ra1 Rf8 Ra3 Rf7 Re3 Ra2 Re6 Rf8 Ne4 Rf7 Bc5 Rf8 Nd6 Rf7 Bd2 e1N Bc3 Ned3 Bd2 Rg7 Be1 Rg4 Rg6 Rg5+ Kf6 Kg4 Kf7 h5 Rh6 Re5 Kg6 Re2 Qh1 Re3 Qf3+ Kh3 Qf8 Kg4 Qf6 Rf3
1r1BN1q1/1qP3rB/1P2pKRn/B1R1Pr2/2p1N3/4bpp1/2P1Q1N1/5nNk w - - 0 2 legal: proof: f4 b5 d4 h5 a4 g5 axb5 c5 d5 Bb7 fxg5 Bc6 g4 hxg4 dxc6 Rh3 Ra3 Rh7 Ra1 Rh8 Kd2 a5 Ke3 d5 Kf4 f5 Ke5 Kf7 e4 Kg6 h4 Kh5 b4 e6 b6 c4 g6 a4 g7 a3 b5 d4 b7 f4 b6 f3 Nc3 g3 Bd2 Kg4 h5 a2 h6 d3 h7 Ra7 Rh6 Ba3 Qe2 Na6 b8B Nb4 Bc7 Nd5 Rg6+ Kh4 Re1 Nh6 g8N a1Q Nf6 Bc5 Ne8 Qa6 Rb1 Qdc8 Rb5 Ne3 Kf6 Qab7 Bd8 Ra5 Bh3 Nf1 c7 Be3 Bf5 Qca8 Be1 d2 Rc5 d1R Bd2 Rg8 h8N Rg7 Be1 Rd4 e5 Rf4 Ne4 Qab8 Nf7 Ra8 Ba5 Q8c8 Nfg5 Rb8 Be7 Qd8 N5h3 Qdc8 N8d6 Qh8 Ne8 Qg8 Bd8 Rg4 Nef2 Rg5 Nf4 Rh5 Bd3 Rg5 Ne4 Kg4 Qf2 Kh4 Ng2+ Kg4 Ne2 Kh3 Ng1+ Kh2 Qe2 Rh5 Nd2 Kh1 Bf5 Re7 Ne4 Rh7 Rg5 Re7 Bh7 Rg7 Rg6 Rf5#
1N4RK/p2n2bB/5Pq1/3rB1p1/nPrp1P1k/3P2pN/1r1Q4/R3RNRq w - - 0 1 legal: proof: b4 h5 e4 f5 exf5 b5 g4 hxg4 c4 Bb7 cxb5 Bc6 Be2 Bd5 Bf1 Bb3 axb3 Rh4 Qc2 Rh5 Qd1 Rh8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 d5 f4+ Kh5 h4 g5 b6 c5 b5 e6 b4 c4 b7 c3 b6 c2 Bb2 c1R Nh3 Qe8 Rg1 Rc6 Bd3 Na6 b8N Nc5 b7 Nf6 Be4 Na4 d3 Rh6 Nd2 Bg7 Nf1 Qg6 Qd2 g3 Bd4 Kg4 h5 Kh4 Bb2 Rh8 h6 Rc4 h7 Rd8 Re1 Rc2 Bc3 Rb2 Bd4 Rc8 Bc3 Rc4 h8R+ Bh6 Re8 Bg7 Ra1 Nd7+ Kd6 e5+ Ke7 Nac5 f6 Na4 Bf5 e4 Be5 e3 Rg8 Qh6 Kf7 d4 Bh7 e2 Re8 e1Q Kg8 Qg6 Re7 Bf8+ Kh8 Qee4 Nc6 Qf3 b8R Qh1 Rbe8 Rc8 Nb8 R8c5 Rg7 Rd5 Rg8 Qf3 Bc7 Bh6 Ree1 Qh1 Be5 Bg7+
3r3k/3pp2B/1N2Pp1K/2n2PBN/3B1bPQ/pb2N3/r1bbP1R1/1R2Bq2 w - - 0 2 legal: proof: b4 g5 h4 gxh4 d4 b5 c4 c6 cxb5 Nf6 a4 Na6 b6 Nc5 a5 Rb8 b5 Ra8 a6 Nb7 axb7 Ng8 Nc3 Qc7 Nb1 Qe5 dxe5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 h5 Ke3 a5 Kf4 a4 Kg5 h3 b8N h4 g4 a3 f4 h2 e6 c5 b7 h3 b6 c4 Bg2 c3 Be4 c2 Qe1 Bg7 Bh7 Kf8 f5 Ra7 Nc3 Nf6 Na4 Ne4+ Kh5 f6 Rb1 Rg8 Bg5 c1B Na6 Bh6 b8B Kg7 b7 Bd2 Nb6 Rd8 Nc7 Nc5 Ncd5 Kh8 Bg3 Ra8 b8B Bb7 Bbd6 Rac8 Ne3 Be4 Bde5 Bc2 Bd4 Bb3 Bb8 Rc7 Qh4 Rb7 Bg3 Bc2 Nbd5 Rb2 Be1 Ra2 Nb6 Bb3 Nf3 Bc2 Rg1 h1B Ne5 h2 Nd3 Bd5 Rg2 h1Q Nf4 Qf1 Kg6 Bc4 Nh5 B4b3 Bf4 Bg5 Qh2 Bh4 Kh6 Bg3 Bg5 Bb8 Qh4 Bf4
B1rbr2n/B2R2P1/Qpb2pPp/5PBR/RPN1p3/1R1r3n/3r2kN/3K4 w - - 1 2 illegal: No possible last move, all moves rejected
1K6/p1N2n2/1nqR4/rBN1Pnn1/2qP1RpR/pB2BpP1/4rPk1/1B1Q4 w - - 0 1 legal: proof: a4 d5 d4 e5 c3 b5 h4 bxa4 h5 g5 Na3 Bc5 Nb1 Bf5 dxe5 Bg6 hxg6 d4 Kd2 d3 Ke1 Bd4 cxd4 Qd6 Rh6 Qd7 Rh1 Qd8 Kd2 Kd7 Kc3 Kc6 Kc4 h5 b4 f5 e4 h4 g7 h3 e6 f4 e7 h2 e8B+ Qd7 Qe2 d2 Bg6 d1N Nc3 g4 Nh3 Nh6 g8B Nf7 Nb5 Nc3 Be3 Rh5 Ng5 a3 Ne6 Qe8 Qd1 Nd7 Rc1 Rf5 Nc5 Nb6+ Kd3 Rd5 e5 Ne4 B6h7 Neg5 Kc3 Rb8 Bb1 Rd6 Rc2 Kd5 Kb3 Qc6 Be2 Nc8 Ka4 Nb6+ Ka5 Rc8 Ka6 Rf6 Nd3 Ke4 Rc1 Qc4 Kb7 c5 Nc7 Rd6 b5 Rd5 Re1 h1N Rf1 Na8 b6 Ng3 Rh1 Nf5 g3 Rb8+ Kc6 Rc8 b7 Nb6 Rh4 Rb8 Bf1 Rc8 Rc2 Rb8 Re2 Rc8 b8R Kf3 Ra8 Rb8 Qc2 Rb7 Rd8 Rb8 Re1 Rc8 Be2+ Kg2 Kb7 f3 Rd6 Qa6+ Kc6 c4 Qd1 c3 Nc5 c2 Bb5 c1Q Re2 Qa4 Kb7 Qcc4 Bh7 Ne7 Bhc2 Nf5 Bb3 Rh8 Be8 Qc6+ Kb8 Rg8 N5e6 Ra5 Nc5 Rg7 Bd7 Qe4 Bb5 Qc6 Bc1 Rg6 Re4 Re6 Rf4 Rf6 Rh7 Rh6 Rh8 Rh1 Rh4 Re1 Be3 Re2
RK1Q4/3q1kp1/2NBp3/1pp1r1R1/1pPP2P1/nb1bB2P/2B1N1N1/r1b2B2 w - - 1 2 legal: proof: g4 d5 b4 h5 gxh5 a5 e4 axb4 exd5 Nc6 f3 Ne5 Bb5+ Qd7 Bf1 Ng4 fxg4 Qd8 Kf2 c5 Kf3 b5 Kf4 f5 Ke5 e6 c4 f4 a4 f3 h6 f2 h7 Bb7 a5 Qc8 a6 Ra7 d6 Ra8 d7+ Ke7 d8B+ Ke8 a7 Bg2 Nh3 Bf3 Nc3 Bc6 Nf4 Bd5 Nce2 Qd7 Be7 Bg2 Bd6 Rb8 a8B Be7 Be4 Kf7 Ra8 Bf3 Bc2 Bg5 Ng2 Ne7 d3 Be4 Be3 Nd5 Qd2 Nc3 d4 Rhd8 h8N+ Ke8 h3 Nb1 Ng6 Kf7 Ne7 Na3 Nc6 Rb6 Qe1 Ra6 Qa1 Rh8 Rg1 Rh5 Qa2 Nb1 Qa5 Bh7 Qd8 Ra1 Nh4 Bg6 Rg3 Na3 Rf3+ Bf5 Ng2 Bh6 Rf4 Rg5 Re4 Bg6+ Kf4 Bh7 Re5 Rh5+ Rg5 Bf5 Bb1 Bc2 Ke5 Ba4 Bc2 Bb3 Bb8 Qb7 Kd6 Qc8 Rg6 Re5 Bc7 Qb7 Kd7 Qa7 Kc8 Bf4 Bd6 Qd7+ Kb8 Bh6 Ng3 Bg5 Be2 Bf4 Rg5 f1B Bed3 Re1 Ne2 Ra1 Bf2 Bd2 Be3 Bc1 Ng1 Rb1 Rg6 Be2 Rg5 Bd1 Be2 Ra1 Bf1 Bf3 Ne2 Be4 Ne1 Bh7 Ng2 Bd3
2Q5/k3Nn1P/2p2p1r/r2p1qN1/PN1pBNbK/1R1R4/2pP1P1B/n5Rq w - - 0 2 illegal: Other
8/2np1p1p/p4b1R/1PPNQn1K/1NNnR1rP/3b2PN/4r1p1/2kB1RB1 w - - 0 1 illegal: No proof kernel
R1N2QB1/1Npp1q2/R1p5/2bP1kpN/2Pr1p2/B4Pp1/1NPrr2B/2K1n3 w - - 0 3 illegal: Other
QN6/2rp2K1/5Bp1/2R1p1Pp/1R1PP1k1/Ppp1b2q/r3N2B/R1R1B1qn w - - 0 3 legal: proof: h4 b5 b4 f5 h5 a5 h6 g6 e3 f4 Be2 f3 c3 Ba6 bxa5 b4 c4 Bb5 cxb5 Na6 Qc2 Nc5 Kd1 Ne6 Qb3 fxe2+ Kc2 Ng7 hxg7 Rb8 Kb2 Ra8 Qd1 Ra7 Kc2 Ra8 Kd3 Kf7 Kd4 Ke6 g4 e1Q f4 h5 e4 c6 a6 b3 a7 Qc8 f5+ Kf6 a3 Kg5 Ke5 c5 b6 c4 f6 e6 b7 c3 b8B Qf2 f7 Rh6 Ne2 Bb4 f8B Qf3 Be7+ Nf6 g8R Qa6 Rc8 Qb6 Rc5 Rh8 d4+ Qe3 Bd2 Rh6 Be1 Qc6 Nd2 Qg1 Nc4 Rh8 Qd3 Rc8 Na5 Rc7 Qa6 Qb5 Rc1 Qd3 Nc6 Qh3 Ra1 Rc8 Bbd6 Rc7 Qb7 Rac8 a8R Rf8 Nb8 Rf7 Ra4 Ba5 Bd2+ Kh4 g5 Kg4 Qa8 Bb6 Na6 Ba7 Be1 Bb8 Rcc4 Nd5 Rab4 Rf2 Rc1 Nf4 Kf6 Nd3+ Kg7 Rh2 Bf6 Nf2 Rc5 Rg2 Rh2 Nh1 Ra1 Ra7 Bdg3 Bf4 Nb8 e5 Rc1 Rf2 Rg2 Be3 Bh2+ Kh4 Rg3 Rc7 Rf3 Kg4 Ra1 Bc1 Rd3 Be3 Rdd1 Rg2 Rdc1 Rf2 Nf4 Rb2 Ne2 Ra2
rNKq4/p6P/PRnbB2R/2nbRp2/b2n1PkB/6Bq/1q1P4/RQ2r1N1 w - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 gxh5 c5 bxc5 Bf5 Ba3 Be6 Bc1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 f5 c4 b5 a4 g6 h4 b4 a5 e3 h6 e2 c6 e1Q c5 b3 h5 b2 a6 Qd7 h7 Bb7 h6 Qd8 c7 Nf6 c8R Nfd7 c6 Kf6 c7 Nc6 Nc3 b1B Rb8 Bc2 c8R Ba4 Bc4 Nc5 Nce2 Qf1 Be6 Qh3 Nd4 Rg8 h8B+ Rg7 f3 g5+ Ke3 g4 Kf4 g3 h7 g2 Bb2 Kg6 Qb1 Kh5 Rc7 Rg5 Bf6 Rg8 Bh4 Rh8 Nge2 g1Q Rh2 Qg7 Ng1 Qf6 Re2 Rg8 Re5 Rg2 Rd7 Re2 Rd6 Re1 Bg3 Na5 Ba3 Bd5 Nc6 Qg7 Rb2 Qh8 Nb8 Nc6 Rb6 Qf6 Re2 Qc3 Bb2 Qc2 Bf6 Qb2 Bd7 e6 Bfh4 e5+ Ke3 e4 Kf4 e3 Be6 Nd4 Ke5 Be7 f4 Kg4 Rh2 e2 Rb5 Qe8 Rdb6 Bd6+ Kf6 Qh8+ Kf7 Qf6+ Ke8 Nc6 Ra5 Nd3 Kd7 Nc5+ Kc8 Rf1 Bg8 e1N Qa2 Nb7 Rb4 Qg2 Rbb5 Bdb3 Qb1 Nc2 Be6 N2d4 Rb6 Re1 Re5 Nc5 Bg5 Bd5 Rh6 Qh3 B5h4 Qd8+
1R1r1Nb1/nBR3n1/Pn1B1RrN/2qq3p/1P2R3/bp1QN2k/KP5P/b6r w - - 0 1 illegal: No possible last move, all moves rejected
K2n2R1/q1r2PPB/1rB1qp2/2p2Rr1/3BB3/N1b2qN1/Q1P2Pn1/1b2N1kb w - - 0 1 illegal: No possible last move, all moves rejected
b3nb2/p1R1K3/1PRrp3/bP1RqB2/kBQ3n1/3q4/P1N1PrB1/2q1NnB1 w - - 0 1 illegal: No proof kernel
6K1/N1r1p1pP/r1QRq1P1/rb2PR1N/3r1b2/2B1N1P1/kBb1B2n/N1n4r w - - 0 1 illegal: No proof kernel forced: wxDB
bN4R1/R1r2N2/1r2PQb1/n3pK1b/rqnp2B1/1kbPP1B1/1P3N1N/4Rb2 w - - 0 1 illegal: No possible last move, all moves rejected
2nQ1rq1/r1rnnB1b/n1pk1K2/2b2PBN/Bn1pP3/1R4R1/2PPR3/4N1R1 w - - 0 1 illegal: No possible last move, all moves rejected
2NnKbnn/4BB1R/3p2qn/1P1bN1p1/r2PP3/2b2rP1/N1rR4/1R1QN2k w - - 0 1 illegal: No proof kernel
B4rQ1/1nkPr1B1/2b5/2p1qR2/bNPP1p1n/4NP2/KRB2Nb1/qnb3B1 w - - 0 1 illegal: No possible last move
8/2b1R1PB/1qN2Br1/Rn4Pp/6pB/1Nbk1NPP/1qnn3B/1bKQnr2 w - - 0 1 illegal: Other
bb1q1R1n/2Bp1Nn1/3rB1pq/N2P4/2R3Pn/B6q/1P2P1kB/KQ2Rnr1 w - - 0 1 illegal: No proof kernel
N3b3/pn1b2PN/Pb2B1p1/q3B3/1Pqrk2N/3R2n1/1b2N1PR/Qr2q1RK w - - 0 1 illegal: No proof kernel
2n2N2/1bn1K3/1r6/n1QRp2p/1brRq2B/2k1BqP1/RrPnP2P/NB2R3 w - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 Kd2 f5 Kd3 Kf7 Kc4 Ke6 Kc5 Ke5 b4 h5 g3 d5 g6 a5 g7 a4 b6 f4 b7 f3 b5 f2 b6 d3 Bh3 f1N Nd2 d4 Rb1 a3 Nb3 a2 Be6 a1N Qe1 d2 Rb2 d1R Nh3 d3 Qa5 d2 Ra2 Rh6 Nf4 Qe8 Ng6+ Ke4 Bb2 Rb1 Bf6 d1Q Bh4 Nd2 Re1 Rb2 Qb5 Ke3 Kd5 Na6 b8B Qf7 b7 Nc7+ Ke5 Ra6 Ba7+ Rb6 b8R Bb7 Rd8 Qf3 Rd4 Rc6 Qb4 Rc4 Qc5 Qc1 Bd5 e6 Bb6 Ne7 Kd6 e5 g8R Nc8+ Kd7 Be7 Nf8 Rc6 Ba7 Rb6 Rg6 Qd1 Rd6 Qb1 Bg8 Qc1 R6d5 Qd1 Nc1 Nab3 Be6 Na5 Nb3 Qc1 Na1 Bd6 Qc6 Bb4 Qc5 Qe4 Kd8 Rb1 Bg8 Qa3 Bf7 Rb2 Kd7 Nd6 Ke7 Qb3 Bg8 Nc8+ Kd7 Nf3 Qb5 Nd6 Rdd1 Rc6 Ra4 Nd2 Rc5 Kd4 Ke7 Qbf3 Ba2 Ra6 Rd5+ Kc3 Bb1 N2c4 Be3 Rab6 R1d4 Nd2 Ra2 Rc4 Qc5 Nc8+
4R2N/5B1r/2kbn1P1/2pbP2p/2bqB1Nr/B5K1/QRPr2RP/2n1r1qB w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 Bc5 Nh3 Be7 Ng1 Bf8 Kf2 d5 a4 Kd7 e4 b5 g4 h5 a5 c5 g6 f5 a6 b3 g7 d4 a7 b4 e6+ Kc6 e5 b2 g5 f4 e7 b3 e8B+ Nd7 g6 d3 Qe1 f3 Bf7 d2 Qe3 d1R B1c4 Ngf6 g8R Ng4+ Kg3 f2 Nh3 f1B Rg1 Rd2 Ng5 Bb7 Nc3 b1Q Rg2 b2 Ra2 Bd6 Nd1 Rh7 Qa3 Nf8 Nf2 Ne6 Re8 Bd3 Ba6 Bc4 Qb3 Rb8 a8B Qa1 Qa3 b1R Rb2 Qd7 Qa2 Qd8 Nfe4 Nf2 Nf6 Nd3 Ng4 Qd7 Rb5 Qd4 Ba3 Re1 Rb2 Qg1 Bb5+ Kc7 Ba6 Bbd5 B6b7 Nc1 Bc6 Rb4 Bcb7 Bf3 Be4 Qd8 Bg8 Ra4 Nf7 Kd7 Nh8 Rb4 Bf5 Bfd5 Bf7 Kc7 Bb7 Kb6 Be4 Kb5 Bc8 Kc6 Bb7+ Kb6 Rf8 Bc6 Bd3 Qg5 Re8 Bb3 Ba8 Qh6 Nf2 Rh4 Ng4 Bb5 Bf3 Bd5 Bde4 Qd4 Rg1 Kc6 Bh1 Bc4 Rg2 Qhe3+ Bf3 Qg1 Be4 Bf1 Bf5 Ba6 Be4 Bc4
rq1b1k2/1R1Bp3/5n1b/PP1r1N1B/2bN4/Qp1RNrN1/1P1BP2q/Kr1n4 w - - 0 1 illegal: No possible last move, all moves rejected
1bb3K1/4p3/PrRB2qr/pkbNP3/2bnQ2N/n1P2B2/P2NBbR1/2b2B2 w - - 0 1 illegal: No proof kernel
1KBb3N/2P1k3/q5pQ/1B4P1/Pnp2Rb1/2nr4/1RPrrrNB/3RBbb1 w - - 0 1 illegal: No proof kernel
3r1K2/P1k2pP1/2BpB1b1/q2b1P1p/n2PN3/r2NbQ1B/R2R3B/1n1n1N1r w - - 0 1 illegal: No proof kernel
1nr4r/qPRbNp2/1bp5/1R3P2/pBP3Bk/1R1Pn3/2nN1b1B/KQ3r1R w - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 h5 gxh5 b5 axb5 Be6 Qe2 Bf5 Qd1 Bc8 c4 e5 h4 Ke7 f4 Kf6 b4 a5 h6 g5 h7 a4 d3 g4 Kd2 g3 Kc3 c6 Kb2 e3 b6 g2 b5 e2 h5 e1N b7 e4 b6 e3 h6 e2 f5 Bg7 Nc3 Nd7 b8R Nf8 Bd2 Qd6 Qb1 Qd5 Nf3 g1R Ra3 Qd4 Bh3 Rf1 Ka1 Nd7 Rb3 Qc5 Bg4 Ne7 Bf4 Qg1 Nd2 Nd5 Bh2 Kg5 Rb7 Qe3 Rc7 Nb8 b7 Be6 Rg1 Rc8 h8B Qa7 h7 Ne3 Rb5 Bh6 Nd5 Bd7 Bc3 Kh4 Ne7 Rh8 Bb4 N1c2+ Ka2 Rc8 h8R e1B Rh1 Bf2 Rg8 Na3 Ka1 Bf4 Rg7 Bd6 Rg6 Bc5 Re6 Bb6 Ree5 Ng2 Re1 Ne3 Rc1 Rh8 Rc3 Rc8 Rb3 Nac2+ Kb2 Rh8 Ka2 Na6 Kb2 Rac8 Ka2 Nb8 Kb2 Na3 Ka1 Nac2+
2B1r3/1R1rBn1q/p1B1q1Np/1bp1bPN1/P1P3nR/1RQq2b1/P3Bk2/2K5 w - - 0 1 illegal: No proof kernel
3N1B2/qn2Q2B/nP2p3/rb5p/Pr2Bk1N/1p3b1R/1PB1P2q/Kqb3RR w - - 0 1 illegal: No possible last move, all moves rejected
QbkBq3/1N2KR2/n3p3/1rr2B2/p1qn1PB1/4PqBP/P1b1p1RN/5N1n w - - 0 1 illegal: No proof kernel
k1N1r3/1ppBPqq1/N1r3P1/6pK/2b2rPb/B1B1n2N/2P1Rn1Q/B2R1q2 w - - 0 1 illegal: No proof kernel
1k2B2r/rb3R2/p2RQn1q/R1bp4/bnqB2nK/NB1P2P1/P1P3Bp/N7 w - - 0 1 legal: proof: f4 e5 h4 exf4 b4 c5 bxc5 g5 hxg5 Bh6 Nc3 Bg7 Nb1 Bf8 Kf2 f5 e4 d5 c6 h5 c7 Kd7 g3 b5 g6 f3 g7 b4 e5 b3 Ne2 f4 Nd4 h4 Qe2 a6 Na3 b2 Qe3 b1Q Bc4 h3 Bb2 h2 Bb3 Nc6 Rf1 Qc1 Rb1 Bb7 c8B+ Kc7 e6 Kb8 e7 Ra7 e8B Nf6 g8R Qc7 Qe6 Bc5 Rg6 Nb4 d3 Nh5 Bc3 Qc6 Rf6 Qb5 Rf7 Qc4 Re1 Qd2+ Kf1 f2 Kg2 f1N+ Kh3 f3 Kh4 f2 Re4 Bc6 Ref4 Bb7 R4f6 Qc1 Qe7 Qb2 Bba4 Ne3 Bh3 f1B Rd6 Qc1 Rb2 Be2 Bg2 Bg4 Nb3 Bd7+ Bd4 Nc6 Qe6 Ng4 Na1 Qh6 Rb5 Nb4 Ra5 Bb5 Bb3 B5c6 Rdd7 Ba4 Rd6 Nhf6#
1r1N2Nb/4pbP1/2pn1rB1/p5R1/1kq2b1B/4PQ1B/PNP2K2/Rqn1N2n w - - 0 3 illegal: No proof kernel
4B1k1/n2K2rr/bp5b/N6R/BPPB1pp1/2Rb1Q1N/2P2P1b/2b1nqBN w - - 0 1 illegal: No possible last move, all moves rejected
NN2B2K/n2pbp1b/2r5/Ppb3Nk/1N1P1B1b/4PP2/2rnR1R1/2RQqb2 w - - 0 1 illegal: No proof kernel
2N3Rr/B2q2pp/2nbB2P/1N1PQ1P1/3pP2R/rb1r2nb/k1N2bR1/2K2R2 w - - 0 1 illegal: No proof kernel
n1K1b2N/2rpPnBp/2q3n1/bpb4P/PPr1b3/k2B1QR1/NR1B4/2N4B w - - 0 1 illegal: No possible last move, all moves rejected
R3n1b1/b5p1/n1r2B1p/P5K1/Rb1q2pP/2B2PR1/2b1B1PR/QrN2Nkr w - - 0 1 illegal: No possible last move, all moves rejected
1BB5/1PRbn2n/rBp1p2K/rrPNkn2/2q5/1P2P3/r2N2pb/3BNRQ1 w - - 0 1 illegal: No proof kernel
8/R2p1bqK/pr4PR/n2rB3/1b1P1p1P/nr1Bn3/NN2RPrk/QR2B3 w - - 0 1 illegal: No proof kernel
N1B2bn1/pr4kn/RRr5/R3Ppn1/3Qp1bK/qP1N1P2/P1N5/n2bN1B1 w - - 0 1 illegal: No proof kernel
BNK1Q2N/bp3bRP/p5P1/2Bb2pq/1N3rBn/1R3r1n/P5P1/bn4Bk w - - 0 1 illegal: No proof kernel
1r2rR1n/Kpp2Bn1/3P2q1/1R2BB2/b2Bp1P1/bP1kP3/q1N5/1Nr2NrQ w - - 0 1 illegal: No proof kernel
1r1n4/p1kP1qB1/KNpN1Q2/P6B/RP3bq1/1nb2B1p/2P1rb1N/5bRN w - - 0 1 illegal: No proof kernel
2Kr4/r2Q1p1p/1r1PB1NP/3qp1n1/1B1RRP2/4PNk1/q1b1n2n/4RqBB w - - 0 1 illegal: No possible last move, all moves rejected
4k3/2rRB2Q/np1b2p1/RR3Bq1/p2BNq2/P1N2PPb/1Pqb1R2/K1q4r w - - 0 1 illegal: No possible last move, all moves rejected
2N1Q2r/b1q1p2n/2p1pBRp/B1R1P2b/BN2R2r/n1P5/PK1r1nPk/3R4 w - - 0 1 illegal: No proof kernel
2BBn1nb/p1R1r3/4B1pn/P2rN3/Pp2kp2/1b1Rb1P1/Q1P1RB2/N3q2K w - - 0 1 illegal: No proof kernel
RqB1Q2n/n4r2/1p3N1p/1r1K1p2/4NNqP/bpBB2PN/1P3P1R/k1b2n2 w - - 2 3 illegal: No proof kernel
4RBqb/r2p3R/4R1p1/pPn1KN2/n2PN2p/Pr4Pb/N2N2Qq/B1n1k3 w - - 0 3 illegal: No possible last move, all moves rejected
3R4/PB3kNp/pR1P1b2/1p2qpnn/N1R3KP/P1r1QnR1/1r1q3N/5bB1 w - - 0 1 illegal: No possible last move, all moves rejected
krb3n1/Bp1p1RPr/4pq1B/1Q1P4/1nN1RK2/qq3p1N/BP1BP3/2N4b w - - 1 3 illegal: No proof kernel
n2NBQrN/p2n1R2/P1R2p2/1K6/3Nb2q/B1n1PP2/npPrp2N/3B2bk w - - 0 1 illegal: No proof kernel
n2BQ3/1P2r2p/2p2rp1/1nRq2Rp/1b3b1N/k2PBp2/2BN1KPP/N1N2b2 w - - 0 1 illegal: Other
N4nqn/5PNb/1ppR4/2PqB3/rP1B1pQp/1k4pP/2R2R1b/1NKr2N1 w - - 0 3 illegal: No proof kernel
1b3qk1/pRK2nNp/q2BP3/Q2r1NB1/b1Npr1p1/PP3Np1/2RP1n2/5B2 w - - 0 1 illegal: No possible last move
2q5/2R4b/kp1Pp1np/B1B1r1p1/4rN1P/2pPN1pR/1bPRK1nB/2Q2B2 w - - 0 1 illegal: No proof kernel
2k1b1K1/3Npp2/2ppBb2/1pB1n3/RrPr1NR1/QP1P1P1p/1N3q2/5NRn w - - 3 6 legal: proof: e4 b5 h4 g5 a4 gxh4 a5 d6 e5 Kd7 Rh2 c6 Rh3 Ke6 Rh1 Qb6 axb6 a5 Be2 Ra7 Bf1 Kd5 e6 Rd7 exd7 Ke6 Ke2 h5 Kf3 a4 Kf4 a3 Kg5 h3 d8N+ Kd7 c4 h4 g4 h2 d3 a2 f3 Rh7 b3 Nf6 b7 Bg7 Nc3 Na6 b8N+ Kc7 Ne6+ Kb7 Bh3 Ne8 Nge2 Bd7 Rg1 h1Q Na4 Nc5 Ba3 Na6 Nb2 Nf6 Ng3 Be8 Qc1 Qg2 Nf4 Nh5 Bc5 Qf2 Nd7 Nb8 Nf1 Bc3 Ng6 Ng3 Nf4 Rg7+ Kh6 Kc8 g5 Nh1 g6 Bf6 Be6 h3 Rg4 Rg8 Kh7 Rg7+ Kh8 Rh7+ Kg8 Rh4 Rg1 Rg4 g7 Rh4 Rb1 a1R Rg4 Ra5 Ra1 Ra4 Ra2 Rb4 Ra4 Rh5 Qa1 Rd5 Qa3 Rd4 Kf8 Bh4 g8R Bf6 R8g6 Rd5 Kg8 Rd4 Nf8+ Nd7 Rg1 Kb8 R6g4 Ne5 Nd7+ Kc8
2bQQR2/1N2R3/1B4N1/K2n1P1N/2P1nPqP/b1p4k/2n2rp1/BN5q w - - 0 1 legal: proof: g4 f5 e4 c5 exf5 h5 gxh5 b5 Na3 c4 Nb1 c3 bxc3 b4 Bc4 b3 axb3 Na6 Bf1 Nb8 c4 d5 c5 a5 c4 Ra7 c6 Rb7 c5 Rb4 Bc4 dxc4 Bb2 c3 Bc1 Rc4 bxc4 Be6 Kf1 Bd7 Ke1 Bc8 f4 Kf7 h4 Kf6 d4 e5 c7 g5 c6 e4 d5 g4 h6 a4 d6 g3 h7 g2 d7 a3 Bb2 a2 Ne2 e3 Ng3 e2 Nh5+ Ke7 Qd2 Qe8 d8B+ Kf7 Rh3 Be7 Re3 Ba3 Re7+ Kf8 Kf2 e1N Ke3 Nf6 Kd4 Na6 Qd3 Nb4 Kc5 Nbd5+ Kb5 Nc2 Ka5 Rg8 h8N Rg3 Ng6+ Kg8 Qd1 Rf3 Qd4 Rf2 Qe5 Be6 c8Q Ne4 c7 Qf7 Qa8 Kh7 c8N Kh6 Bb6 Qg7 Nd6 Bc8 Nb7 Qg8 Qc7 Qg7 Qd8 Qg8 Nd2 Qg7 Rb1 a1Q Rd1 Qc1 Nb1 Qg8 Rd2 Qh1 Ba1 Qg7 Re2 Qg8 Rf7 Qg7 Rf8 Qg8 Ne5 Qg4 Ng6 Ng3 Qe7 Qg5 Bd8 Bd7 Ng7 Be6 Re5 Ne4 Bb6 Bd7 Qad8 Bc8 Qee8 Qg3 Ne6 Kh5 Ng7+ Kg4 Nh5 Kh3 Re7 Qg4
B1B5/3P4/1Q1n2n1/BrBr1qr1/Q1bPb1NR/P1K3PR/8/n1N2kqq w - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Bh6 f4 Bg7 fxg5 Bf6 Na3 Be5 Nb1 Bg3+ hxg3 Kf8 Bc4 Kf7 Bf1 Ke8 d4 Kf7 Kd2 e5 d6 h5 f6 Ke6 d7 Kd5 f7 Ke4 f8B c5 a3 b5 g6 b3 g7 h4 g5 h3 g6 b4 Nf3 b2 Bc4 b3 Bb5 c4 Bd6 c3+ Ke2 c2 Kd2 h2 Kc3 Qa5+ Bb4 Ba6 Bf1 Nc6 Bg5 c1N Bg2 Nf6 g8B Bc4 g7 Ne8 Bd2 Ne7 Rg1 h1Q Bh6 Ng6 Bf1 Nd6 Bd2 Rh5 Nh2 Rg5 Ng4 Re8 Qc2+ Kf3 Bd5+ e4 g8Q Ree5 Ba8 Rd5 Qb8 e3 Qb6 e2 Rg2 e1Q Rh2 Qf2 Rh3 Qfg1 Bd3 Qb5 Bc5 Kg2 Be4+ Kf1 Bf3 Rde5 Bfb7 Rd5 Be1 Bd3 Bc8 Bc4 Kd2 Qa5+ Nc3 b1R Ra2 b2 Qa4 Qb5 Ne2 Nb3+ Kc3 Na1 Bd2 Re1 Nc1 b1B Rb2 Ree5 Be1 Bbd3 Rbh2 Be4 Rh4 Qb1 R2h3 Qd3+ Kb2 Qdf3 Ba5 Qf8 Kc3 Qf5 Bcb4 Rb5 Bc5 Rd5
2b5/Pn1B1rqQ/1q1N1Rq1/bK2k1rN/1P1Rn3/br1B1P1Q/2P1Q3/7Q w - - 0 1 legal: proof: g4 a5 e4 f5 exf5 h5 gxh5 b5 d4 c5 dxc5 a4 Qd5 a3 Qb7 Qb6 b3 Qd8 Bb2 axb2 Bxb5 Ra7 Bf1 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 e5 h4 d5+ Kb5 g5 a4 g4 c6 e4 h6 g3 f3 g2 h7 e3 c7 d4 b4 d3 a5 e2 h5 e1R a6 d2 h6 d1Q a7 Re3 Ne2 g1B Ng3 Bd6 Ra6 Nc6 Bd3 Bf4 Na3 b1Q Nc4 Qa1 Nd6 Na5 Rh4 Ke5 Nh5 Nf6 Rg4 Rf8 h8Q Qb2 h7 Rf7 Rc6 Bg5 Rd4 Qe1 Qa6 Nb7 Qg7 Qf2 h8Q Qg8 Qgh7 Qg6 Qa1 Bh2 Qh1 Bh6 Ra6 Bg7 Rc6 Ne4 f6 Qa1 Qd8 Qb2 Qd7 Bh6 Qh3 Bg5 Bf1 Rb3 Bd3 Bc1 Rb6 Qa1 Rc6 Ba3 Ra6 Bg4 c8B Qc3 Bd7 Rg8 Bc6 Bc8 Bd7 Qf5 Rc6 Rg5 Rb6 Qg6 Ra6 Re7 f7 Bf4 f8Q Rf7 Qfh6 Be3 Qd1 Qb2 Qe2 Qa1 Rc4 Bb6 Rd4 Ba5 Rb6 Rg3 Qc1 Rg5 Qch1 Qfg1 Nf5 Qc3 Rf6 Qc7 Nd6 Qg7 Qef1 Qg4 Qf2 Qf5 Qe3 Qfg6 Qe2 Qb6+
b7/2r1NkNr/2Q1b2B/nPN1r1P1/2r3b1/2n4N/PKRPQq2/5RrB w - - 0 1 legal: proof: e4 a5 h4 g5 c4 d5 cxd5 f5 exf5 gxh4 Ke2 b5 Ke1 a4 Na3 b4 Nb1 a3 bxa3 Qd7 Qc2 Qd6 Qd1 Qd8 Ba6 b3 Bc4 Bg7 Be2 Bc3 Bf1 Bb4 axb4 Ra5 Bd3 Ra7 Bf1 Ra8 g4 h5 f4 e5 d6 c5 b5 b2 f6 e4 g5 h3 f5 c4 d7+ Kf7 Ke2 c3 Ke3 h4 Kd4 h2 Bg2 e3 Nh3 c2 Kc3 e2 Rf1 e1R Bh1 Qb6 d8Q Rh7 Qc7+ Ne7 Qe2 Ra4 Qc6 Rc4+ Kb3 Nd5 Nc3 b1B Kb2 Qf2 Ne4 Be6 Nc5 Kf8 f7 Nc3 Qd1 Re5 Qe2 Kg7 f8N Kf7 f6 Bg4 Ng6 Be6 Qa6 Nc6 Ne7 Na5 Qc6 Bg4 Bf3 h1R Bg2 Rg1 Bh1 Kf8 f7 Kg7 f8N Kf7 Nf4 h3 N8e6 h2 Ng7 Bf5 Nh3 Be6 Ka3 Bg4 Bb2 c1R Bf3 Rh6 Bh1 Bbf5 Rb1 Rc2 Rbc1 Rh7 Ba1 Be6 Bb2 Rd4 Ba1 Rd7 Bb2 Rc7 Ba1 Rb2 Rc2 Rb4 Bb2 Nd5 Bd4 Rc4 Kb2 Nc3 Ne8 Re4 Bg7 Re3 Bh6 Re5 Be4 h1B Ng7 Bhf3 Bd5 Bf5 Be4 B3g4 Bh1 Be4 Qb6 Bb7 Qc6 Ba8
b3k3/2rR1nRb/1rn2R2/1b1RP3/Q4P1P/1nKB1N1Q/1N1n1bP1/q4B2 w - - 0 1 illegal: No proof kernel
qQ1r1B1N/1P6/5BR1/P2nn1Bk/P3r2r/7q/1R1Pnb1N/2Q1nnBK w - - 0 1 legal: proof: e4 d5 b4 b5 g4 f5 exf5 a5 bxa5 h5 gxh5 b4 c4 Ba6 Be2 Bb5 cxb5 Kd7 Bd3 Ke8 Bc4 dxc4 Kf1 Kf7 Kg2 g5 f4 c5 h4 e5 a4 c3 b6 e4 h6 c2 f6 Kg6 b7 e3 f7 c4 h7 e2 f5+ Kh5 f6 b3 Na3 c3 Ra2 b2 Nb5 b1Q Nd6 g4 Bb2 c1R Nf3 c2 Rg1 e1N+ Kh1 g3 Bd4 Qb3 Rb2 Nc6 Nh2+ Qf3+ Rg2 Ne5 Bg1 Bh6 f8B Ne7 f7 Nd5 Be7 Be3 f8B Bf2 Bg5 Rb1 Ne4 c1N Nd6 Ne2 Qc1 Qf5 Nf7 Qh3 Bc5 Re8 h8B Re6 Bce7 Qf8 Bb4 Rd8 Bhf6 Qe8 Bf8 Re7 Rb6 Rb4 Nh8 Re4 Rb2 Rh7 Be3 Nec3 Beg5 Nd1 Rc2 N1e3 Rb2 Nf1 Nf7 Kg6 h5+ Kf5 h6 Kg6 Nh8+ Kh5 Rb6 Rd6 Rb1 Qa8 Rb4 Rd8 Rb2 Rc7 h7 Rcc4 Ba3 Rh4 Bf8 Rb4 Nf7 Rbe4 h8Q+ Kg6 Qg8+ Kh5 Nh8 Ne7 Bfh6 N5c6 Be3 Rd5 Qb8 Ne5 Bf8 Rd8 Beh6 Ba7 Bd4 Nd5 Rf2 Bb6 Rf4 Ba7 Rg4 Bb6 Rg6 g2+ Kg1 Bc5 Bhg5 Bb6 Kf2 g1N Bdc5 Ngf3 Bce3 Nd4 Kg1 Bc5 Kh1 Ne2 Bg1 Bf2
N1B3qN/3r1PP1/b1P2rq1/3rKR1n/RQQ2r2/1R6/rn1P2r1/1k3BR1 w - - 0 1 legal: proof: g4 d5 h4 g5 b4 c5 e4 a5 bxa5 f5 gxf5 g4 exd5 Bh6 Ba3 Bg5 Bb4 cxb4 hxg5 Qb6 Rh5 Qd6 Rh1 Qd8 Ke2 Kd7 Kd3 Kd6 Kd4 b5 a4 h5 f4 e5+ Ke4 Kc5 c4 h4 g6 b3 a6 Kb4 a7 h3 d6 h2 a5 g3 d7 g2 a6 b2 g7 Nc6 c5 Rh6 f6 Na5 f7 Nc4 f8R Rf6 Nc3 b1R f5 Nb2 Qe2 Kb3 c6 Kc2 Ra4 b4 Nb5 b3 Nf3 g1R Nc7 Rg2 Rg1 h1R Ng5 Rh5 Nf7 Ra1 Rb4 Kb1 Nh8 Ra4 Qc4 Bb7 Kd5 e4 Ke5 e3 Rb5 Qc8 d8Q e2 Qd6 Qb8 Qdb4 e1R+ Kf4 Re7 Rb6 Ref7 Ke5 Rd7 Rf7 Qf8 Rb5 Rad8 a8B Ra2 a7 Ba6 Bb7 Rh4 a8R Rf4 Ra7 Rfg6 Rb6 Nf6 Na8 Nh5 f6 Qg8 Rf8 Rh6 Rb5 Rhg6 f7 Rgf6 Bc8 Na4 Rab7 b2 R7b6 Ka1 Ra5 b1Q Rbb5 Nb2 Ra4 Qg6 Re8 Kb1 Re7 Rdd4 Reb7 R4d6 Rd5 R8d7 Rbb5 Qh6 Rd3 Rdd4 Rb3 Qg6 Rd5 Rd3 Rb5 R4f5+ Ke4 Rff3+ Rf5 Rf4+ Ke5 R3d5+
b1R3Qn/kN3b1P/3Q1P1P/3BnQ2/rn1nPBR1/3bN2K/2Q2n1n/r7 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 f4 Bd3 e5 Qg4 Bb4+ Ke2 Qf6 Qf3 Qf5 exf5 e4 Kd1 e3 Bf1 Bc3 Ke2 Bd2 Kd3 Ke7 Qd1 e2 Ra2 Nf6 Ra1 Be3 fxe3 Ng8 Kd2 Ke8 Ke1 Kd8 Kf2 Kc7 Kg2 Kb7 b4 e1N+ Kh3 d5 c4 a5 h6 g5 c5 d3 c6+ Ka7 e4 d4 c7 d2 h7 f3 Bc4 a4 Bd5 a3 Qb3 d1B Bf4 a2 Kg4 f2+ Kh3 d3 Na3 d2 Ne2 Nd7 f6 Nc2 Ng3 Bh5 Nf5 d1N Rc1 a1N Rg1 Bf7 Ne3 Bb7 c8Q Nh6 Rg4 Nd4 Nac4 Nac2 Na5 Ne5 Qf5 Bc6 Nb7 f1B+ Rg2 Bd3 b6+ Kb8 b5 Ra1 Qb2 Nb4 Qc2 Rg8 Rg4 Nf2+ Kg3 Ka8 h4 Rd8 h5 Rd6 Rh4 g4 Kg2 g3 Rg4 Ng8 h6 Ne7 Bg5 N7g6 Bf4 Nh1 Kh3 g2 Nd8 Nh8 b7+ Ka7 b6+ Ka6 b8Q Ba8 b7 g1N+ Kh2 Rd7 Qd6+ Ka7 Kg2 Rc7 Kh2 Ngf3+ Kh3 Rc6 b8Q+ Ka6 Qdc5 Nh2 Nb7 Rc7 Qe7 Rc4 Qg8 Ka7 Qef8 Rc6 Qd6 Rca6 Qg2 R6a3 Rc8 Ra4 Qc2 Nf2+
q1nB3b/r1PR1PK1/R2NR1Q1/Pb1n1B2/1p1Q1r2/3PRN1b/5k1b/b7 w - - 0 1 illegal: No possible last move
1r2rR2/1b1N3P/1q3QQb/p1b1PPK1/7B/2kPBN2/1nB1b1B1/n2n2R1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Qf6 Qc2 Ba3 Qf5 Bf8 Qg5 Qf5 gxf5 Ba3 Qh4 Bf8 Qg4 hxg4 Kf2 Kf7 h4 a5 e4 c5 b4 g5 d3 c4 d6 c3 d7 c2 d8Q f3 Ke3 g3 h5 g2 b6 f2 b5 g4 Kf4 g3 e6+ Kg7 e7 Kf6 e8B+ Ne7 h6 Na6 b7 Rg8 b8B Nc5 b6 Bg7 b7 Na4 Nc3 Nb2 Ba4 Re8 Be3 c1N Bc2 Nb3 Nf3 g1Q Bg2 f1B Na4 Be2 Nc5 Qb1 Bc7 Rb8 h7 Qg1 Rb1 Na1 Bd6 Qf2 Qb6 Nd5+ Kg4 Bf8 Rhg1 Nc3 Kh4 Bg7 Nd7+ Kf7 Bb4 Ncd1 Be1 Ke7 Qd8+ Kd6 e5+ Kc6 Qf6+ Kb5 Rf1 Qg1 Kg5 Qf2 Rc1 Qg1 B1f2 Kb4 Qg6 Kc3 Qf6 Ra8 b8Q Bb7 Qbd6 Rab8 Qg6 Rf8 Qdf6 Rfe8 Bh3 g2 Bh4 Qf2 Rb1 g1B Bg2 Bh2 Rg1 Bg3 Bc1 Qb6 Bf4 Bf2 Rc1 Bc5 Be3 Qd8 Rb1 Na4 Rb6 Nab2 Rc6 Qb6 Rc8 Re6 Rh8 Ree8 Rf8 Bh6+
5Q2/qP3P1b/N2r1R1P/bnB3Qp/2kB2RR/4rPn1/1b1n2K1/1R3nN1 w - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 g5 h6 gxh6 g6 h7 Be6 Ne2 Bd7 Ng1 Bc8 h4 Bh6 h5 Nf6 Be2 Bf8 h6 Ng8 Bh5 gxh5 Kf1 Kd7 b4 Kd6 d4 c5 b6 a5 f6 e5 b5 c4 f3 e4 b7 c3 b6 a4 f7 a3 Bg5 e3 Qd3 c2 Kg2 c1B Rh3 e2 Qd2 a2 Na3 Na6 b8R Nc7 b7 Bf5 Be3 Nb5 Rh4 Qa5 Bf2 Qa7 Qg5 Ne7 Nc2 Bb2 Rb1 a1N Nb4 Nb3 Na6 Nd2 Re8 Rg8 h8B Bh7 Be3 Nf5 Ree4 Rd8 Reg4 Ng3 Bf6 Kd7 d6 Kc6 d7 Bb4 d5+ Kd6 Bh8 Rge8 Bhd4 Ba5 Bf2 Re6 Bfe3 Rde8 Bf2 R8e7 d8R+ Rd7 Re8 Re3 Ree4 Rd8 Ref4 e1N+ Kh3 Nc2 Rf6+ Kd7 d6 Kc6 Kg2 Rd7 Qf4 Kd5 Qg5+ Kc4 Bc5+ Re4 Bfd4 Rd8 d7 Ne3+ Kf2 Nef1 Kg2 Rde8 d8Q Re3 Qd6 Rd8 Qf8 Rd6
Rr6/b1QqP1p1/8/1Pn1qQKQ/2k5/b2bB2P/b2P1NQ1/1Rn1N1Br w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 c4 a4 cxd5 Ba6 Bh3 Bb7 Bf5 Bc8 Bc2 Nh6 Bb3 axb3 a4 Ng8 axb5 Bg4 Qc2 Bh3 Qd1 Bc8 Kf2 Kd7 Kf3 c5 Kf4 f5 e4 b2 h3 c4 h6 c3 e6+ Kd6 h7 c2 e5+ Kc7 b6+ Kb7 e7 Ra7 e8Q Qd7 b5 Ra6 e6 Nc6 d6 Na5 Kg5 f4 Nc3 b1B Qdh5 f3 Bb2 c1B Ne4 f2 Bd4 f1Q Be3 Ba3 Nf2 Ba2 Nf3 Nb3 Ne1 Qe2 Qeg6 Nf6 Qf5 Nc1 Rb1 Rg8 h8Q Bc5 Qhg6 Ra7 Qhh5 Ne4+ Kf4 Ra4 Qg2 Rb4 Ra1 Rb1 Rf1 Ba3 Rh1 Be7 Rg1 Bd8 e7 Bc7 Rf1 Bb8 Rh1 Ba7 Rf1 Qc6 d7 Nc5 d8Q Bce6 Rg1 Bec4 Kg5 Bd3 Qd6 Rb8 Rf1 Bd5 Qde5 Qd7 Qc3 Kc8 b7+ Kc7 Rh1 Kb6 Rg1 Rc8 b8B Ba2 Bh2 Rb8 Qce5 Ka5 Qc7+ Kb4 Rf1 Kc4 Bg1 Bb4 Bf4 Qe5 Be3 Bb3 Ra3 Ba2 Ra5 Bb6 Ra8 Ba3 Nf3 Ra1 Rd1 Ba7 Ne1 Nb3 Rb1 Nc1 Rb2 Rb1 Rb3 Ra1 Rb1 Qh2 Nc2 Bb4 Rb2 Qe5 Bh2 Ne2 Rb3 Rg1 Rb1 Ba3 Ne1 Rh1 Bg1 Nc1
1n4Br/b5R1/4qr2/Q2P4/Rq1P1q1r/K2b1P2/QpN1RPBk/2q1NR2 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 h6 b4 Bd7 bxa5 Nc6 Bb2 Bc8 Bf6 Nd4 Bg5 Nf3+ gxf3 hxg5 h4 Kf7 a4 Kf6 d4 c5 Kd2 e5 Kc2 b5 Kb2 b4 h5 e4 h6 c4 h7 e3 a6 c3+ Ka2 e2 a5 e1Q a7 g4 a6 Kg5 f6 c2 f7 c1Q Be2 g3 Qd3 g2 Qc3 Qf6 Na3 Ne7 Nh3+ Kh4 Rf1 g1Q Nf4 g5 Nc2 g4 Ng2+ Kh3 Bb5 Qed2 Ne1 g3 Bd3 Rb8 a8Q g2 a7 Qff4 Qc7 Nc6 Qa5 Bd6 f8R Kh2 Rf7 Bf5 Rg7 Rb6 Kb3 Be5 Ra4 Nb8 Be2 Rf6 Bb5 Rhf8 h8R+ Bh7 Rhg8 Bd3 Be8 Bc7 Bf7 Bb6 Ka2 Rd8 Re8 Qh1 Re3 g1R Re2 Rg4 Bg8 Rh4 Kb3 Qcd1 Kb2 b3 Ka3 b2 Qb7 Rf5 a8B Ba7 Qb3 Rf6 Bc6 Q1c1 Qa2 Qg1 Bb7 Qg6 Bc8 Qge4 Bf5 Qe6 Bh3 Rc8 Bg2 Rd8 Bf7 Rdh8 Bg8 Qb4+
2r2B2/2r2N1b/Pbq1R1Qp/qN3PB1/k6r/2B1n2P/rK2B1P1/3qRQ2 w - - 0 1 legal: proof: c4 b5 e4 d5 exd5 a6 cxb5 a5 b4 axb4 f3 g5 Nh3 f5 Ng1 g4 fxg4 Ra7 Ne2 Ra3 Ng1 Ra8 Ne2 f4 Ng1 Nc6 Kf2 Nd4 Ke1 Nf5 gxf5 Qd6 Qf3 Qd7 Qd1 Qd8 a4 Kd7 d4 c5 Kd2 e5 Kc2 e4 a5 h6 b6 b3+ Kb2 c4 d6 Kc6 b7 Kb5 b8B f3 d5 e3 h3 e2 d7 e1R d6 f2 Ne2 Nf6 Ng1 Re4 Bg5 Ng4 Qe2 Ne3 Na3+ Ka4 Re1 Rh4 Nb5 Bb7 Qf3 Bd5 Be2 f1Q a6 Ra7 Bc7 Bg8 Ba5 Bh7 Bc3 Qa5 d8Q Rc7 d7 Bc5 Qg8 Bb6 Qg6 Rhc8 Qf4 Qf3 d8B Qa8 Bde7 Qc6 Kb1 b2 Nf3 Rh8 Ka2 b1R Bf8 Ra1+ Kb2 Ra3 Ne5 Ra2+ Kb1 Rg8 Nf7 Rh8 Qf1 Rg8 Bd2 c3 Kc1 c2 Bc3 Nd5 Bh5 Rh8 Re6 Ne3 Be2 Rg8 Qf2 Rh8 Re1 Rg8 Qf1 Rh8 Ba3 Rhc8 Bf8 Ra3 Kd2 c1Q+ Kd3 Qb1+ Kd2 Qd3+ Kc1 Qd1+ Kb2 Ra2+
Q1Q1Rn2/4P1bQ/Q2pRN1K/q5r1/2n1BP1P/4bn1B/1k2b1P1/bN4q1 w - - 0 1 illegal: No proof kernel
k2NK1B1/4pQb1/1P3P1q/b2bQ2N/4n1r1/1P2n1R1/bn3P1R/B1Q1qQ2 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 d4 g5 h4 gxh4 e4 a5 exf5 c5 cxd5 c4 Qb3 Ra7 Qc2 Rc7 Qd1 Rc5 dxc5 Bg7 Rh3 Bh6 Rh1 Bf8 Kd2 Kd7 Ke3 Kc7 Kf4 Kb7 Ke5 h5 g4 c3 c6+ Ka7 b3 h3 f6 h2 b6+ Ka8 d6 h4 c7 a4 d7 h3 Ke6 a3 Kf7 a2 g5 c2 g6 Rh4 g7 Bb7 c8Q Be4 Bb2 c1N Nd2 Nd3 Ne2 Rg4 Qcc1 Na6 Ng3 Nac5 Nf3 Qc7 Rb1 a1B Nh5 Qe5 Ng5 Nh6+ Ke8 Nf5 g8Q Ne3 Qf7 Bg7 Ne6 Bf5 Bg2+ Ne4 Nd8 Bh7 Rg1 h1B Qf1 h2 Bf3 Qf4 Rg3 Qh6 Be2 Bf3 Be5 Nb2 Bc4 h1Q Be6 Nbc4 Bd4 Bb2 Be5 Ba3 Ba1 Bb4 Qh3 Bc5 Qc3 Bd4 Nb7 Nb2 Qg6 Nc5 Bg8 Nbc4 Qf7 Qf1 Qg2 Qe2 Rh1 Nb2 Rh2 Bb1 Qf1 Ba2 Qcc4 Bc3 Qce6 Bg2 Qe5 Ba5 Qc1 Na6 Qf1 Qe1 d8Q+ Nb8 Qdd3 Nd7 Qd1 Bd5 Nd8 Nc5 Qc1 Ne4
1bK3rQ/1PPpR2R/nkb5/1bq3B1/7Q/N4PNb/2q1q1NP/3N2bB w - - 0 1 legal: proof: f4 c5 d4 cxd4 g4 b5 a4 h5 gxh5 a5 axb5 e5 Nc3 e4 Nb1 Ra7 Nf3 f5 Nc3 Ra8 Ra2 Nc6 Ng1 Ne5 fxe5 f4 Ra1 f3 Nb1 f2+ Kd2 Ra6 Bh3 Rf6 Bf1 Rf3 exf3 Bd6 Ra4 Bc5 Ra1 Bf8 c4 g5 b4 d3 Ke3 g4 Kd4 g3 Kd5 d2 c5 g2 h6 a4 c6 e3 h7 e2 e6 e1B b6 a3 b7 a2 b8Q Qh4 b5 Kd8 e7+ Ke8 Kd6 Nf6 Kc7 Qd4 b6 Qd5 Qa4 d1B Na3 Bc2 Bg5 Qb5 Qh4 Bf5 Ne2 g1Q Ng3 Rg8 h8N Ne4 Bg2 f1B Ng6 Qe2 Nf4 Bf2 Re1 a1Q Qa8 Qf6 Kb8 Ba6 b7 Nc5 Kc8 Be4 Qb8 Qf5 c7 Bb5 Qa8 Na6 Qb8 Kf7 e8N Ba7 Ng7 Qgc5 Rg1 Bec6 Bh1 Qfc2 N7f5 Bh3 Ng2 Ke6 Nfe3 Kd6 Qa8 Bb8 Nd1 Qed2 Re7 Qe2 Rh7 Bg7+ Bd8 Bd4 Re1 Qf2 Re3 Qfe2 Ree7 Bg1 Qa7 Q5f5 Qad4+ Qd5 Qh8 Kc5 Re8 Kb6 Bg5 Rg6 Re4 Qdc5 Ree7 Rg8+
2B1Nr2/R1bR3p/BP2Kp2/n2Q3P/Nb2PP1k/1nQ1b3/6n1/2R1Rq1r w - - 0 1 legal: proof: b4 b5 a4 c5 axb5 e5 bxc5 e4 c6 d6 c7 e3 dxe3 Nc6 e4 Nb8 e5 Bg4 Bh6 Bf5 Bc1 Bc8 g4 f6 c4 Kf7 c5 Nh6 c6 Ke6 g5 Ng8 g6 Ke7 Ba3 Be6 Bc5 Bf7 gxf7 dxc5 c8B g5 e4 a5 Ke2 c4 Ke3 g4 Kf4 a4 Kf5 g3 f4 g2 h4 a3 e6 a2 c7 c3 b6 c2 Bd3 c1N Bda6 Nc6 Na3 Na5 Qd5 Ncb3 Re1 a1B Nc4 Be5 Ne2 g1B Nd6 Be3 Ne8 Qd7 Rhg1 Qb5 Nc3 Qf1 Na4 Ra7 Bd7 Bd6 c8Q Rc7 Rh1 Rc1 Qc3 Bc7 Bdc8 Rc2 Rg1 Rh2 Rg2 Rh1 Ra2 Bh6 Rc2 Kf8 Rcc1 Ne7+ Kg4 Ng6 Kf5 Ke7 f8R Bg7 Rg8 Bh6 Rg7+ Kf8 Rf7+ Kg8 Qcc4 Bf8 Qc3 Bb4 Rd7 Kf8 Qdc5+ Kg8 e7 Kf7 Qd6 Rf8 Qde5 Kg8 Qd5+ Kh8 Ke6 Kg8 Nd6 Kg7 e8R+ Kh6 Red8 Nh8 Ne8 Ng6 Kf5 Kh5 Ke6+ Kg4 h5 Nh4 Re7 Ng2 Rdd7 Kh4 Rg7 Be5 Ra7 Bed6 Rgd7 Bc7
2kNr1K1/nn1pPPRR/2r1R3/Q4bq1/3rN3/1P1p2bR/QB2b2P/4B3 w - - 0 1 illegal: No possible last move
1R5N/2n3Q1/1n3Nbb/kBPR4/4PR2/b2PQrpP/p1r4q/R2Bq2K w - - 0 1 illegal: No possible last move
k2n4/2PRP2p/B1rb4/2B1n1K1/Nq1BN1qB/2p1P2r/r1P3Qb/5QR1 w - - 0 1 legal: proof: f4 c5 a4 b5 g4 g5 d3 e5 fxe5 f5 gxf5 c4 h3 c3 h4 gxh4 axb5 Bb7 Bd2 Bd5 Bc1 Bc4 dxc4 Be7 Be3 Bd6 Bc1 Bf8 Kf2 a5 Kf3 d5 Kf4 Kd7 b4 Kc7 c5 Kb7 b6 a4 c6+ Ka6 b5+ Ka5 b7 Kb6 f6 Ka7 c7 h3 e6 h2 f7 d4 Nd2 d3 Ngf3 a3 Ne1 a2 Ne4 d2 Rg1 h1R Nd3 Ba3 f8B Nc6 Ndc5 Nh6 Na4 Qd6+ Kg5 Rh3 b8B+ Kb7 b6 Rg8+ Bg7 Ne5 e7 Qb4 Ba7 Rgd8 e3 Rd6 Bf6 Rc6 Qg4 d1Q Qg2 Qf3 Bb2 Qe2 Rd1 a1B Rd7 Qec4 Bc1 B1b2 Bd2 Bc1 Be1 Bd2 Bh4 Be1 Bg7 Bg3 Bh8 Bh2 Bf6 Ka6 b7 Qe2 b8Q Nhf7+ Kf5 Nd8 Bc5 Ra7 Kg5 Ra8 Bd6 Qec4 Qb5+ Ka7 Bh8 Qe6 Qd3 Kb7 Bc5 Ra5 Qd1 Ka8 Ba6 Qec4 Bg7 Qe2 Bf6 Qg4+ Kh6 Bg3 Bb6 Qb1 Nac5 Nc4 Qdf1 Bh2 Ba7 Bb4 Bb6 Ra1 Na4 Bbd6 Bfd4 Qb4 Ba7 Ne5 Bac5 Qg3 Kh5 Ra2 Kh6 Qf3 Kg5 Qg4+
k2q1QR1/2R1p2n/1p2Pb1N/1P1n1n1R/qB2b3/4NB1r/PPq5/K1Q2R2 w - - 0 1 legal: proof: c4 g5 f4 d5 Qb3 g4 Qc2 Bh6 Qd1 Bg5 fxg5 d4 h3 a5 Nc3 dxc3 Qa4+ Qd7 Qxa5 Qd3 Qa7 Qd8 Qb6 Ra5 hxg4 Rb5 cxb5 Qd5 Qd6 Qd3 Qb6 Qd8 Kd1 Kd7 Kc2 c5 Kb1 h5 d4 f5 e4 h4 d5 f4 d6 c4 g6 f3 e5 h3 g5 f2 g4 h2 e6+ Ke8 g7 Rh7 g6 Nh6 g8N Nf5 g7 Rh3 g5 Nd7 g6 Nf8 Qe3 b6 Nh6 Nh7 Ne2 Bb7 Bg2 f1N Bf3 Ba8 Qg1 N1e3 Ng3 Nd5 Bd2 Bc6 Nf1 c2+ Kc1 Ba8 Ne3 Bb7 Qe1 Bc6 Rf1 h1Q Bb4 Qg1 Rb1 Qg4 g8R+ Nf8 Rg7 Nh7 Rf7 Bb7 g7 Qf4 Kd2 c1B+ Kc2 c3 Rf6 Bd2 Rc1 Qd4 Kb1 c2+ Ka1 Bc3 Qd1 Qc4 Rg6 Bf6 Rg5 Qb3 Rh5 Qa4 Rb1 c1Q g8R+ Nf8 Qe1 Qcc2 Rc1 Ba8 Rgg5 Nh7 Qd2 Qb8 d7+ Kd8 Rg8+ Kc7 d8Q+ Kb7 Qf8 Qd8 Qc3 Kb8 Qe1 Bb7 Qd1 Ka8 Qe1 Qd3 Rc7 Qdc2 Qd1 Nf4 Qd2 Be4 Qc1 Nd5
1qB3nr/rpK4B/NRB2b1P/3Q1Nk1/pPQq2q1/2P1P3/r3R3/2B1n3 w - - 0 1 legal: proof: f4 e5 fxe5 h5 d4 c5 g4 cxd4 gxh5 Qf6 Bf4 Qg5 Bc1 Qd8 b3 Qb6 a3 Qb4+ axb4 d6 Kd2 Be6 Ke1 Bc4 bxc4 Ke7 Nd2 Kd7 Nb1 Ke8 Kd2 Ke7 Kd3 g5 Ke4 f5+ Kd5 a5 h4 g4 c3 f4 e6 Kf6 h6 f3 c5 a4 e7 f2 e8B g3 h5 d3 h7 g2 e3 d2 c6 Na6 c7 Nc5 c8B Be7 Na3 Ra6 Bc6 Ra7 Bd3 f1Q Nf3 g1Q Ra2 Qg4 Nh4 Kg5 Nb5 Qf8 Nc7 Bf6 Na6 Qe8 Bb1 Nd3 Nf5 Ne1 h6 Qd8 Rg1 Qa5+ Ke6 d5 Kd7 d4 Qf3 d1R Qd5 d3 Re2 d2 Bd3 Qc5 Kc7 Qf8 Rf1 Qe8 Rf4 Qf8 Rc4 Qd4 Rc5 Qg4 Rb5 Qe8 Rb6 Qf8 Ba3 Ra1 Bc1 d1Q Bb1 Ra2 Be4 Ne7 Qc4 Qd4 Bc2 Rg8 h8Q Qe8 Qh7 Rh8 Qhf7 Ng8 Qfd5 Qf8 B8d7 Qa8 Bc8 Kh5 Ne7+ Kh4 B2f5 Kh5 Bh7+ Kh4 Nf5+ Kh5 Kd6 Kg5 Kc7 Qb8+
RR4n1/7p/N2b1P1R/3R2qn/3P1N1q/k2BP1pQ/P1nr4/r2Q1KBn w - - 0 1 legal: proof: g4 a5 b4 axb4 h3 e5 d3 e4 dxe4 d5 c3 d4 cxd4 g5 Kd2 f5 Ke1 Be6 Ba3 Bf7 Bc1 Bh5 gxf5 g4 Rh2 g3 Rh1 Bg4 hxg4 Ra5 Qc2 Ra6 Qd1 Ra8 f4 Kd7 e5 Kc6 f6 Kb5 f7 c5 e3+ c4 e6 b3 g5 Ka4 e7 b5 e8R b4 g6 c3 g7 c2 f5 b2 Ke2 b3 Rh5 Bd6 f8R Nd7 Nc3+ Ka3 Nh3 Rc8 Nd5 Qh4 Nc7 Ndf6 Bd2 b1N Na6 b2 Nf4 c1N+ Ke1 Qg5 Bd3 Rc2 Rb8 Qh4 Bc3 Rd2 Kf1 Qg5 Rh6 Nh5 f6 Qh4 Rb5 Qg5 Ra8 Qh4 Bf5 Nd3 Rd5 Nf2 Bd3 Nh1 Ba5 Ne7 Bc3 Rc8 g8Q Rb8 Qc8 Ng8 Qh3 Rc8 Ba5 Rc1 Rc5 Nc3 Rf5 b1Q Rd5 Qb5 Rb1 Qc5 Rb5 Ra1 Rbb8 Nb1 Bc3 Qa7 Ba5 Qg7 Bc3 Qgg5 Ba5 Re2 Be1 Rd2 Bf2 Nc3 Rc5 Nd5 Bg1 Nb4 Rd5 Nc2
rB1B4/N1QP3r/5P2/B2kN1P1/2npbP1n/1B1n2R1/1pp2Q1R/b1r2K2 w - - 0 1 illegal: No proof kernel
3q1Q2/1Q1p3b/2Q3p1/PRKN1BPR/QP4bb/1BN1p3/4nP1k/2rbr3 w - - 0 1 legal: proof: c4 a5 e4 b5 d4 f5 exf5 c5 dxc5 a4 h4 a3 h5 Nc6 cxb5 g6 h6 Nd4 b3 Ne6 Bb2 Ng7 hxg7 axb2 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 g4 e5 a4 h5 b6 e4 a5 h4 f6 e3 c6 h3 b7 Kh4 b8Q h2 f7 Ba6+ Qb5 Ne7 g8B Nd5 c7 Nc3 c8Q Be7 f8Q Ne2 Qc6 Rc8 Nc3 b1B Nh3 Bc2 Rb1 Bg5 Qd4 Bd1 Kc5 Rh7 Qb6 Bc4 Nf4 Be6 Qa4 Rh8 Bh7 Bg8 Nfd5 Rc7 Bg2 Bf6 Be4 Kh3 Rb2 Bh4 g5 Rc8 Bf5+ Kg2 Re1 h1B Qb7 Kh2 Rf1 Bf3 Rh1+ Kg2 Rb1 Bg4 Rh3 Bg3 Rh5 Bh4 b4 Kh2 Rc1 Be6 Bg8 Rh6 Bf7 Rh7 Be8 Bg8 Bf7 Rh6 Rc2 Bh7 Rd2 Rc7 Rd4 Rc8 Re4 Rc7 Re5 Qc8 Ne7 Ng3 Kb5 Bde2+ Qc4 Bd1 Nb1 Ne2 Qc3 Kh3 Bb3 Qa8 Rc5 Qc8 Nd5 Qd8 Kb6 Kg2 Rb5 Bg3 Rh1 Rh2 Qcf6 Rh4 Q6d6 Rc1+ Qdc7 Rh5 Nbc3 Rh6 Kc5 Rh3 Re1 Rh1 Qcc6 Kh3 Rf1 Kg2 Rg1+ Kh3 Rg2 Rf1 Rg1 Re1 Rh1+ Kg2 Rh6 Bh4 Rh5 Kh2
QRB3BK/p7/4NPkP/3pq3/3r2p1/1PBb1qRP/3b1r2/N1BQq1b1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 f4 f3 e5 Qd3 Nh6 Qd1 Na6 Qe2 Nc5 Qd1 Nf5 exf5 e4 Ke2 e3 Ke1 Ne4 fxe4 Qf6 Bc4 Qg5 Bf1 Qd8 Ke2 Kf7 Kf3 g5 Kg4 d3 c4 f3 f6 f2 Kf5 d2 b6 e2 c5 e1B b3 g4 c6 Bb4 b7 Rg8 b8B Bf8 c7 Rh8 e5 d6+ e6+ Ke8 Kg6 Bb7 c8B Ba6 e7 Bb7 Nh3 Bh6 Ng5 Qc7 Na3 Bd5 Bc4 f1Q Ne6 Bf2 Nc2 Qe1 h3 Bg1 Ra5 Be4+ Rf5 Rh7 Na1 Bd3 Bd5 Bhe3 h6 Qa5 Bc4 Qe5 Rh2 Rh8 Kg7 Rg8+ Kh7 Kf7 Rg2 Rg5 Kh8 Kg6 Rg3 Rh5 Rf4 Rf5 Re4 Rf2 e8Q+ Kf5 Qf8 Kg6 Bc7 Rb8 Ba5 Rb4 Bd5 Ra4 Rb4 Bg5 Rb5 Rd4 Bc3 Bf4 Rb8 Be3 Qe2 d1Q Qc2 Qf3 Qd1 Bd2 Qe8+ Kf5 Qc6 Kg6 Qa8 Rc4 Nc7 Rf4 Bg8 d5 Ne6 Rd4
RNrn2r1/1R2P3/2P3Qp/1PN2Bp1/qP3knn/6q1/pB3Bn1/K3Q2B w - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 g3 b5 axb5 e5 fxe5 f4 Na3 f3 Nb1 Bb7 h4 Be4 h5 Bg6 Ra4 Be7 Ra2 Bg5 Ra1 Bf4 gxf4 Be4 Bg2 g5 Bf1 Bg6 hxg6 Ke7 Bh3 Kf8 Bf1 Ke8 Kd2 Ke7 b4 Ke6 e4 d5 c4 a5 Kc2 d3+ Kb2 d4 f5+ Kd7 f6 Ke6 c5 d2 g7 d3 f7 a4 f8B f2 c6 Qb6 Nc3 Qd8 Qe1 d1Q Nf3 d2 Bc5 Ne7 Bd3 f1N Bf2 Qf8 g8B+ Qf7 Kb1 a3 Na4 Nh2 Ka2 Ng6 Bb2 Nh4 Nc5+ Ke7+ e6 Kd6 Rf1 h6 Ne5 Na6 Ned7 Qa4 Nb8 Qf3 e7 d1N e8Q Ng4 Bd5 Nc7 Qg6+ Ne6 Kb1 Rg8 e5+ Ke7 Bc2 Qg3 Bf5 Nd8 e6 Kd6 Bh1 Nde3 Ka2 Neg2 e7+ Kd5 Rd1+ Kc4 Ka1 a2 Rd2 Nf7 Rd7 Nd8 Rb7 Kd5 Nbd7 Rc8 Nb8 Qc3 Qd2+ Ke5 Rd1 Rf8 Qe1+ Kf4 Rd3 Qe5 Rc3 Rg8 Ra3 Qb3 Ra8 Qa4 Qc1+ Qe3 Qe1 Qg3
n2R2QN/3rr3/R2pP2q/Q2PBQp1/P2P1N1Q/2bn2p1/n1p3B1/K3k3 w - - 0 1 legal: proof: g4 h5 f4 e5 fxe5 a5 b3 a4 bxa4 Be7 Ba3 Bb4 Bc1 Bf8 a3 hxg4 d3 b5 d4 b4 axb4 Bb7 Qd3 Ba6 Qd1 Bd3 cxd3 Rh3 Nc3 Rh7 Nb1 Rh8 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 e4+ Kg6 h4 Kh5 b5 c5 d5 f5 e6 g5 e7 c4 b6 f4 b7 f3 Bg2 f2 Bf4 f1N Ne2 g3 e8Q+ Kg4 h5 Ra6 h6 Ne3 h7 Bg7+ Qe5 Qf6 Qf1 Nc2 Nd2 Nh6 Rd1 Nf7 Nf3 Re6 Rh6 Re7 Nh4 Na6 b8Q Ncb4 Ng6 c3+ Ka1 c2 Qg8 Nc7 Qe1 Na2 Qa5 Qb6 Qf6 Qd6 Be5 Na8 Nef4 Qb6 Qd8 Rg8 h8Q Qd6 Qb8 Rd8 Qbb4 Qb6 Qg8 Qd6 Nh8 Qc6 Bh3+ Kf3 Qf5 Kf2 Bg2 Qg6 Qc4 Qh7 Ra6 Qh6 Rb1 d6 Rb8 Rdd7 Rd8 Ra7 Bf6 Rac7 e5 Rcd7 e6 Ne5 Qcb4 Ng4 Bb2 Bc3 Qd4+ Ke1 Qc4 Bd2 Be5 Nf2 Qce4+ Kd1 d4 Nd3 Nfg6 Bb4 Qh4 Ke1 Nf4 Bc3+
3K2RQ/1N6/qPp1k3/B1RpppP1/6q1/P2n1brB/2rN2RP/1QbR4 w - - 0 1 illegal: No proof kernel
n5r1/3R2Bp/pR6/P2Q1P1N/p1Pn1KP1/1pBnr1Nk/3Nr3/2NQq3 w - - 0 1 illegal: Other
b1n1kBQ1/p5b1/Ppq5/1Pp5/5pN1/KQ1B1N2/2PRq1P1/b2R1qBB w - - 1 3 illegal: Other
K2B1bN1/n2pB1pB/3nQ1RB/5P1Q/qp1P1Pp1/6k1/1p2P3/1b1R1rN1 w - - 0 1 illegal: Other
3bbqnB/QRN1P2N/B1r3b1/1P2b3/2PQ2Bb/k3PB1q/n4Kr1/2R1n3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 bxa4 d4 Qf6 dxc5 Qd8 c4 Ke7 g4 h5 b4 f5 g6 a5 e6 d5 g5 h4 b5 d4 c6 Kd6 e3 Kc5 g7 Kb4 c7 h3 g6 a3 Ra2 a4 Ke2 f4 Qd3 h2 Ke1 f3 Qd1 f2+ Ke2 d3+ Kf3 d2 Kg3 Rh6 Kg2 Nd7 Be2 f1B+ Kf2 Be7 Kg3 Bh4+ Kf3 Nc5 Nh3 Nd3 Nc3 Bd7 c8B Be8 Ra1 a2 Ng5 a3 Nh7 Qd6 Rg1 h1Q+ Rg2 Rb8 Bb2 Qh3+ Rg3 Rb6 Rc1 a1B Ba6 Ne1+ Kf2 a2 Bg4 Qf8+ Bf3 Rc6 Nd5+ Kc5 Qa4 Bd3 Nc7 Be4 Qd1 Kb4 Bc3+ Ka3 Bf6 Ne7 g8B Be5 Bh8 a1B g7 B4g6 Bf7 Bac3 g8Q Ba5 Qg7 Ng8 Bg4 Rh5 Bf3 Rg5 Bg4 Bf5 Bfh5 Bfg6+ Bf3 Bb6 Bg4 Ba5 Nd5 Bb6 Qa7 Bd8 Nc7 Bd6 Qc2 Be5 Qe4 d1N+ Kg1 Rh5 Qed4 Nc3 e7 Rf5 Rg2 Na2 Rd2 Bhf6 Kf2 Rg5 Bgc8 Rg3 Bcg4 Bh4 Qf4 Nh6 Rd7 Ng8 Qfd4 Bf5 Na8 Be4 Rb7 B4g6 Nc7 Rg2+
1r6/1q1k2BK/N2Pb2B/Nr6/Bb1n1PR1/Pr5q/b1n1PBnR/1Q2rQ2 w - - 0 1 illegal: No proof kernel
qK1n4/2B2r2/B1P3QP/1Qqn4/P2rPb1R/1bk2qR1/1q4NR/r4RNb w - - 0 1 illegal: No possible last move
3rQ3/B1k3qQ/n5Pr/2PRbPqb/7n/2NK1PN1/B1n4N/2NR1rnr w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 c4 h5 b4 e5 g4 d5 b6 Kd7 b7 e4 b5 e3 b6 h4 c5 h3 g6 h2 g7 a4 Qb3 a3 Bg2 a2 Nc3 Ne7 g8N Na6 b8Q Bg7 b7 Rh6 Kd3 e2 Bf4 Be5 Nf3 Ng6 Ne7 Nh4 Rad1 a1N Qb1 Nc2 Rhg1 h1R Nh2 e1Q Rd2 Qc1 Rgd1 Qh8 Bg3 Qg7 Bf1 Bf6 Qe5 Kd8 b8N Be6 Bf4 Bf7 Nd7 Bh5 Qe4 Rc8 Bb8 Be5 Ba7 Kc7 Bh3 Rd8 Qb5 Bg3 Ne5 Rf1 Qe8 Rh1 Nc4 Be5 Na5 Rf1 Nb3 Rh1 Re2 Qcg5 Nc1 Rf1 Ng6 Rh1 Nf4 Rf1 Re3 Rh1 Nfe2 Rf1 Kd2 d3 Ng3 d4 Bg2 Qf4 g5 Qg4 g6 Qg5 Qf4 Rh1 Bd5 Rf1 f3 Rh1 Rde1 Rf1 Kd1 d2 Ke2 d1N Ba2 Nf2 Rd1 Nh3 Kd3 Ng1 Qg4 Rb8 Qh3 Rd8 Kc4 d3 Re4 d2 Rd4 Ne2 Rd5 Rh1 Rf1 d1R Rg1 Rf1 Kd3 Rf2 Rd1 Ng1 Qf1 Bf4 Qfe1 Rf1 Q1e7+ Kc8 Q7f7 Be5 Qfg8 Kb7 Qh7 Kc7
r1KB1q2/4Q1P1/P2r3n/rbb1P2N/2B4R/R1qnBP2/1N1Q2n1/1k3nBr w - - 0 1 illegal: No proof kernel
b2Qq1q1/nPn2Q1R/1qr1r3/2NnQ3/6kP/PQ4n1/3B1P1R/1qb1KB1N w - - 0 1 illegal: No proof kernel
2N2q2/PR1RP1N1/B2B4/1nq1PP1b/2Rb1Qbq/3K1r1R/1k4r1/n1q2Q1b w - - 0 1 illegal: No proof kernel
nr2Bq2/2R5/RN1qR1NR/3K1P1P/1P3bP1/pQrk4/3rnb2/2BQ1bq1 w - - 0 1 illegal: No proof kernel
5rR1/R1n5/qk4PP/2nnBQ2/p2Pbb2/rB1P3q/K1Q2NQN/Q4bq1 w - - 0 1 illegal: No possible last move
Bqq1N3/K4B1b/2rq1P1b/B1QP1bQ1/1R1pr1N1/1nR4P/1P2r3/3k1B1n w - - 0 1 illegal: No proof kernel
n5NQ/3bqr2/2R1RPbP/q1P1K2P/1nQ1q1B1/6r1/1b3p1B/nB1NkB2 w - - 0 1 illegal: No possible last move
Qn3R2/4q1rn/1p5k/N4P2/3NBbRP/KPq1rQ2/b1rPB1NN/3b3q w - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Kf7 Bb2 axb2 Qc2 Ke8 Qc1 Qd7 Qd1 Qd8 a4 Kf7 f4 c5 h4 g5 d6 Kg7 h6+ Kh7 a5 e5 d7 e4 f6 e3 f7 g4 a6 g3 f5 e2 a7 b6 Na3 b1B Nf3 c4 Rg1 c3 Nb5 g2 Nh2 c2 Nd4 Bb4 f8Q Qg5 d8N c1Q Nb7 Qe7 Na5 Qc3 Ra4 Ba3 Rc4 Ba6 Rc8 Ba2 Qe8 Qcc5 Qc6 Qc2 Rf8 Nf6 Qf3 Qc3 Qa1 Bb1 Qa2 Bd6 Qa4 Rg8 Qa2 Kh8 h7 Kg7 h8N Kh6 Ng6 Nh7 Nf4 Rg7 Qa4 Ba2 Qac6 Nd7 Qcd5 Re8 a8B Rc8 Qg8 Bd3 Be4 Bc2 Qd5 Bd1 Qa8 Qd8 Rh1 g1Q Ng2 Qge3 Rg1 Qe7 Nf4 Rc4 Rg4 Qg1 Ng2 Qh1 Kf2 e1R Be2 Qc1 Ke3 Nb8 Kd3 Qa1 Qc6 Rc2 Qa8 Rb2 Kc3 Bf4 Kc4 Rc2+ Kb5 Qc3 Ka4 Qd7+ Ka3 Qe8 Bf1 Re3 Be2 Qe7+
n3q3/qr3nBk/P1rN4/Pb1QP1b1/4p1P1/nBNb4/rBB2R2/4KQR1 w - - 0 1 illegal: No proof kernel
1RN3n1/1b1Q2P1/4Q1N1/P2r1r1q/3nq1PP/1qK1krp1/1B2BnR1/b2B2B1 w - - 0 1 illegal: No proof kernel
2r1R3/NP1nBrQR/3K1b1b/k1q4R/4Nnn1/1P1bpQP1/5r1P/2q1RB2 w - - 0 1 illegal: No proof kernel
q3qN1r/NP1r4/1pnQBK2/k2PNBqQ/bbP2R2/rPR2N1b/8/2n5 w - - 0 1 illegal: No proof kernel
q4RR1/1P1r1p1R/b1nRPBrq/nQQ2B2/8/1r1N1P2/1n1Pb3/1kq1N2K w - - 0 1 illegal: No proof kernel
1bB2RB1/rbb2r1B/2NN1K1B/1Q2PnP1/n3p1R1/2Pr1PQ1/5b1b/2qk4 w - - 0 1 illegal: No proof kernel
3N3n/1b3rkP/n1pn1RP1/rQ2B2n/2N2PRB/1rQ1bnBB/2P1q3/5K2 w - - 0 1 illegal: No proof kernel
6RB/6Pk/KPQ1pP1N/PnR4R/n1NRbr2/2b4b/b1r1q1Q1/b3rB2 w - - 0 1 illegal: No proof kernel
4B2n/nRP4p/1Bnbq1b1/2Q3N1/1b2NkN1/P4N1R/1K1P2rP/r3b1bQ w - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 f5 g4 d5 gxf5 dxe4 Nc3 c4 Nd5 Kd7 Nc7 Kc6 Bxc4 Kd6 Bf1 Kd7 c4 Kd6 f4 b5 a6 g5 a7 e5 c5+ Kd7 f6 e3 f7 e2 c6+ Kd6 f5 e4 f6 Ke5 Bb2+ Kf4 Nf3 b4 Qc2 g4 Na6 g3 c7 b3 Bd4 g2 Bb6 g1B Qc5 b2 Bh3 b1N Bd7 Qe7 Be8 Nc3 a3 Nc6 Rc1 Nb5 Rc3 Rb8 a8Q Qe6 Qb7 Be7 f8N Nba7 f7 Nh6 Nd7 Rg8 f8N Rg2 Nf6 Nf7 Ng4 Nh8 Re3 Qf7 Rb3 Bf5 Rd3 Bg6 Qa8 Qd5 Ne6+ Kf5 Neg5 Kf4 Rb3 Qe6 Rc3 Bd4 Rf1 Bd6 Rb3 Bc3 Rg1 Bb4 Qb7 Rf2 Rg3 Rg2 Rh3 Rg1+ Kf2 e1B+ Ke2 e3 Kd1 e2+ Kc1 Rg2 Kb2 Bf2 Ba5 e1B Qc3 Ne5 Nh4 Bbc5 Ka2 Rg3 Qh1 Rg2 Nhf3 Bce3 Nc5 Bg1 Nce4 Nec6 Qc2 Bd4 Qc5 Bc3 Kb1 Rb4 Kc1 Rc4 Rb7 Bb4+ Kb2 Rc1 Bb6 Ra1
3QN3/B2n1rn1/Pr3QRR/k3rqKn/p1B1Qn1P/4N3/1P1Pb3/b1bQ4 w - - 0 1 illegal: No possible last move, all moves rejected
1b1b1rQB/Qq3b2/4R1b1/Pn1PKBb1/3P1BN1/3P1qr1/n2p3N/2R2Bk1 w - - 0 1 illegal: No proof kernel
b1q2BrR/2N1b2P/n1K1PR2/2b2bRp/2q1B2k/Q1r1Pb2/NP2Q1R1/4n3 w - - 0 1 illegal: No possible last move
3Q1rr1/5nbQ/q1r3N1/2NbnRB1/KQ1P1QR1/PB3pP1/4qn1P/1k1r4 w - - 0 1 illegal: No proof kernel
b2q4/1rnBNN2/1nb1q3/6p1/R4QPr/QP2P1BP/1B4bb/1K1r1RBk w - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 Kd1 Kd7 Kc2 Kd6 g4 Ke5 d6 g5 d7 f5 d4+ Ke4 b6 a5 e3 c5 h3 f3 b3 f2 b7 c4 d5 c3 d6 a4 Ra2 a3 Qh6 f4 Nf3 Ne7 Bb5 f1B Qh4 Bg2 Ba6 Ra7 Qh6 Nd5 Bf1 Na6 b8Q Nb6 Bb2 Bb7 Ne5 f3 Bb5 f2 Rf1 Ba8 Nf7 Kf3 Kc1 c2 Nc3 Nc7 Nd5 Bg7 Ne7 Be5 Qf8 Rb7 Ra1 a2 Qa7 Nc8 Qa3 Bh2 Ba4 Rh4 Bb5 Qe8 d8B Nb6 d7 Kg3 Ba4 Bc6 Bb5 Kg2 Ba4 Nb5 Bc7 Qd8 Bg3 Nc7 Bb5 Qc8 d8B Qe6 Re1 f1B Rd1 Bd5 Bd7 Bc6 Bf2 Kh1 Bg1 Bfg2 Rd4 Bcf3 Ra4 Bc6 Rb1 Nb5 Bc7 a1Q Bg3 Nc7 Qg7 Qa2 Qd4 Qa1 Qf4 Qa2 Kd2 c1R Ra1 Rd1+ Kc2 Rd6 Re1 Rd1 Rf1 Qa1 Bc1 Qh8 Bb2 Rd6 Kc1 Qd8 Kb1 Rd1+
rrb1b1k1/2Q4R/Nb1K4/P1Q1B1q1/1Pq2R1Q/1P1p1PnB/7q/3NQ1nb w - - 0 1 illegal: No proof kernel
3k4/1q1nR3/R2Ppn2/1P1B1P2/qQb2r1Q/B3b3/rPNr3r/Q1NQK1b1 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 c5 g4 a5 d4 h5 d6 h3 d5 c4 g5 c3 g6 h4 f6 c2 g7 h2 f5 a4 Nf3 h3 Bd3 a3 Bg5 c1B Bf4 a2 Nfd2 Qa5 d7+ Kd8 f7 Rh4 Bd6 Nf6 g8Q Qa4 Bc4 Rf4 Nb3 Be3 Qg1 e6 Bb4 Bfc5 Ba3 Bb7 Nc1 Ra6 Qf1 Rd6 Rg1 h1Q Rg7 h2 f8Q+ Kc7 Rh7 Qg2 Re7 h1R Bb3 Rh2 Qh1 Bg1 Bc4 Bce3 Bb3 Bc6 Bc4 Kb7 d8Q+ Nbd7 Qa5 Qe4 Qh8 Qf3 Qb4 Kc7 Qh4 Kd8 Bb3 Ba8 Bc4 Ra6 d6 Qb7 Bb3 Rc6 Bd5 Rcc2 Nc3 Rcd2 N3e2 Qa5 Nd4 Qa4 Rb1 a1R Nc2 Ra2 Ra1 Rd3 Qe2 Rdd4 Qd1 Rdd2 Qhe4 Qba6 Bc6 Bb6 Ne3 Qb3 Qb1 Qc8 Bf3 Bd5 Nc2 Bc4 Bd5 Qb8 Qc5 Qa7 Bb4 Ra6 Ra3 Qb7 Qa1 Be2 Qc3 Bc4 Ra2 Bbe3 Ra3 Ra4 Bc5 Rb4 Ra6 Ra4 Bb4 Ra2 Ba3 Qa4 Qd4 Be2 Qb4 Bc4
qr5B/4Q2b/NPnP1QbK/2Nk3P/7P/Rpbn2BR/B1r4q/1q3B1b w - - 0 1 illegal: No proof kernel
6b1/kqR3Pr/bb2bN2/2q1Pn1Q/NP1p1r2/1n1N3R/nB1P2Q1/1N1K3B w - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 b5 b3 e5 a3 c4 bxc4 b4 axb4 exf4 g4 h5 e4 d5 c5 Kd7 c4 Kc6 e5 Kb7 g6 a5 c6+ Ka7 c5 f5 c7 f3 g7 f4 c6 d4 g5 a4 g6 h4 Qb3 f2+ Kd1 a3 Be2 f1B Qg3 h3 Qe3 a2 Rh2 f3 Qc3 f2 Bf3 Bfa6 Qe3 f1B Qb3 Bfc4 Bd5 Qd6 Ne2 Nf6 g8N Qc5 g7 Be6 c8Q Rh7 c7 Ne4 Qg3 Nc6 Nf6 Ne7 Qg2 Nf5 Nf4 Rb8 Rh1 h2 Nd3 Bd6 Qg8 Rf8 Qh8 Bg8 Bb7 Bce6 Bb2 Be7 Bd5 Bd8 c8N+ Kb8 Nb6 Ka7 Rg1 h1Q Na4 Bb6 Rf1 Rh2 Qh5 Nc3+ Kc2 Rh3 Rf3 Rh4 Rh3 Rf7 Qhg5 Rh7 Qh5 Rf8 Na3 Rf7 Rc1 Rf8 Nb1 Rf7 Rg1 a1N+ Kc1 Na2+ Kd1 Nb3 Qge2 Qe7 Ne8 Bc4 Kc2 Ba6 Rc1 Qf3 Kd1 Ng3 Rc5 Rf5 Nf6 Rf4 Bb7 Qd5 Rc7 Nf5 Qe4 Qec5 Qef3 Qd8 Qe2 Qa8 Bh1+ Qb7 Qh2 Bd7 Qg2 Bde6
rNrb3r/b1R2P1q/8/B3NrNP/3p3k/1QP1Q1q1/B1nPnb2/KR4N1 w - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 bxc5 hxg4 a4 b4 Ra3 Ba6 Ra1 Bb5 axb5 Rh5 Nh3 Rh4 Ng1 Rh8 f4 Kf7 h4 Kf6 c3 a5 b6 g5 c6 d5 c7 e5 c8Q e4 h5 a4 b7 g3 Be2 a3 Rh2 b3 Bf1 g4 Rh4 b2 Nf3 e3 Rh3 g2 Ng1 a2 Qf3 g3 Kd1 e2+ Kc2 e1B Rh1 Be7 Qc4 Qd7 Qe3 Nh6 Qb3 Bd8 Bc4 Ng4 Na3 Nc6 b8N Qh7 Rh4 Bf2 Rb1 Nh2 Rg4 a1R Rg7 Nf1 Rc7 Ra5 Ba6 Ra2 Nc4 R2a3 Ne5 Nd4+ Kd1 Ra2 Bc4 Ne2 Kc2 Rb5 Ra1 Ra6 Kb1 Rc6 Ka2 b1R Ba3 Re1 Rb1 Ra6 Kb2 Ra8 Ka1 Rc5 Ra7 Rc8 Bb4 Rc1 Ba5 Re1 Nh3 g1Q Rc7 Qh2 Ng1 g2 Qg3 Ba7 Qe3 d4 Bg8 Qg3 Bf7 Kg7 f6+ Kh6 Bg8 Rd1 f7 Re1 f8N Rc1 Qf3 Ne3 f5 Kg5 f6 Rf1 Ne6+ Kh4 Ng5 Rf2 Bc4 Rf1 f7 Nc2+ Kb2 Rf2 Qe3 Rf5 Qb7 Ne1 Ba2 Nc2 Qb3 Ne1 N1h3 g1B Ka1 Bf2 Ng1 Nc2+
3N2K1/B4P2/2r1brPq/1nR1p1k1/3QP3/2PrrQbQ/nq1b1RB1/3Q3N w - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 gxf5 c5 hxg5 cxd4 a4 Kf7 axb5 Ke8 Kd2 Kf7 Kd3 d5 e4 h5 f4 a5 b4 e5 b6 a4 b5 a3 b7 h4 g6+ Kf6 b6 a2 Nc3 h3 Nb5 h2 Be3 Ne7 Nd6 Nec6 Rc1 a1B Nh3 Be6 Bg2 Na6 b8Q Nc7 b7 Ra6 Rf1 h1Q Qa7 Nb5 b8Q Be7 Nf7 Qb6 Rf2 Rf8 Qc8 Bc3 Nd8 Beb4 Qad7 Be1 Qd6 Bbd2 Qb4 Kg7 f6+ Kh6 f7 Qh2 f5+ Qf4 Ng1 Kg5 f6 Qb8 Ne2 Qb7 Rf3 Bg3 Bg1 Qh4 Rf2 Qh6 Qc3 Nd6 Qd7 Qb2 Qc8 Nb5 Qb4 Bh2 Ng3 Rb6 Nh1 Bg3 c3 Ra6 Ra1 Rb6 Qc5 Ra6 Ra5 Nb4+ Ke2 d3+ Kf3 Rc6 Qd4 Na2 Qd7 Na3 Rc5 Nb5 Qc8 Rg8 f8Q Rg7 Q4a4 d4 Qa7 Rf7 Qb6 Bb3 Qh3 Be6 Qa7 Be1 Qaa4 d2 Qc4 d3 Qd4 Rfc7 f7 Rb7 Qfd6 Rbb6 Qe2 d1R Q6d5 d2 Qb3 Ra1 Qbd1 Bf4 Qf1 Be3 Kg3 Ra6 Qf3 d1R Q1e2 Rd3 Qd1 Bf5 Qb3 B1d2 Qd7 Ra4 Rf1 Rd1 Rd5 Re1 Qbd1 Bc5 Qd6 Bb4 Ba7 Bc5 Qd7 Bd4 Rc5 Raa6 Qd6 Bg1 Qd4 Rc7 Rf2 Ree3 Qh5+ Kf6 Kh4 Bh2 Qh3 Re6 Qhf3 Rcc6 Qh3 Qf8 Q5f3 Bg3+ Kh5 Qe8 Kh6 Qf8+ Kh7 Qh6+ Kg8 Kg5 Qd6 Rf6 Qd4 Be6
Rr3n1r/3N1PP1/bB1qk2n/K2Rp1RR/b1Pq3q/P1QN4/B4q2/1Qb5 w - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 f4 d5 g4 b5 f6 h5 c6 e5 c7 h4 f5 b3 Kc3 b2 a3 h3 g6+ Ke8 g5 Kd7 g7 h2 g6 Rh5 f7 Ra4 f6 Ra8 Bc4 Ba6 Be3 Ke6 c8Q+ Nd7 Ne2 Rb8 Nd2 b1Q Ne4 Rh8 Nc1 Qa2 Bb6 Nh6 g8R Bg7 Qc5 Nf8 Kb4 Qd6 Ka5 b4 Nd3 b3 Qb1 b2 Rd1 h1Q c3 Nh7 f8R Qh4 f7 Bf6 g7 Bg5 Nf6 Bc1 Nd7 Qd4 Rd8 Nf8 Rg1 Qh4 Rg5 Qd4 Qc2 b1Q Qc8 Qbb3 Qb1 Qaf2 Qc6 Qd1 Ba2 Qdh4 c4 d4 Qf3 Qdg1 Qe3 Qgg4 Qd2 Qd1 Qc3 Qdg1 Rc8 Qgg4 Rc5 Qd1 Rd5 Qdg4 Nb4 d3 Rh5 d2 Nd3 d1B Rg5 Nh7 Rc8 Qgd4 Rd8 Rb7 Ra8 Ba4 Rh5 Bg5 Qbc2 Bd2 Rg1 Nf8 Qb1 Bc1 Rgg5 Rb8
NN2N1N1/2q1PR2/bQ6/2p2Pk1/Pq1n1n1q/3rb1P1/BB2QK2/2q1n1Rr w - - 0 1 illegal: No proof kernel
qk2B2q/3P1n2/QNb2R2/4n1NN/2r1K3/qPNQn3/4RpPP/1r2bnB1 w - - 0 1 illegal: No possible last move
1r1Bb1B1/qqnPrQb1/R4K2/Q5nb/PP2p2r/4N3/1B1P4/bk1N1BR1 w - - 0 1 illegal: No proof kernel
2B1n3/3PBN1q/P1Pb1p2/qkBRN1BQ/5nb1/1r2Q1K1/2n2RPb/1r2n3 w - - 0 1 illegal: No proof kernel
1b5N/qq1PB2p/1k4N1/R3P3/2nP2nq/NnQ1rB2/1b1q2KP/N1RQ1r2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 exf4 cxd5 f3 Na3 f4 Nb1 Bf5 gxf5 Qd6 Ra3 Qe7 Ra1 Qd8 Kf2 Kd7 e4 g5 b4 a5 d3 c5 f6 Kc7 f7 a4 e5 g4 d6+ Kb6 d7 g3+ Ke1 f2+ Ke2 c4 Kf3 c3 Qb3 c2 Be2 f1N Na3 g2 Nh3 g1Q Qc3 Nf6 Ng5 Bd6 f8N Nc6 Ng6 Rf8 Nf7 Na5 Nfh8 Nc4 d4 Qg5 Bd1 Ng4 Kg2 Bb8 Bf3 Nfd2 Bb2 Nb3 Rhc1 Qh4 Ra2 Qc7 Raa1 Ka7 b6+ Ka6 b7 Kb6 b5 Qc6 Nb1 a3 Ra2 Ra5 Ra1 a2 Ba3 Qe4 Be7 Qd3 Na3 Ra8 Rd1 c1B Re1 Bb2 Rec1 Bd6 b8N Qd2+ Kg1 Rf6 Na6 Bb8 Nb4 Ra7 Nbc2 Rb7 Bd5 f3 Kf1 f2 Kg2 Rf3 Bc6 Re3 Bf3 Ka7 b6+ Ka6 Rab1 Rc7 b7 Kb6 Ra1 Rc8 Re1 Rf8 Rac1 a1Q Rh1 Qb1 Na1 Qe4 Rhf1 Qc6 Rfe1 Qa4 Red1 Qa7 Rh1 Bc7 b8Q+ Qb7 Qa8 Bb8 Rhg1 Qa7 Qe4 Rf7 Qec2 Rf4 Qd1 f1Q+ Kh1 Qfd3 Rf1 Qe4 Rf2 Qc7 Kg2 Qeb7 Kf1 Qe4 Be2 Qdc2 Nb1 Qa7 Kg1 Qd5 Rg2 Rf2 Bf3 Ba3 Kh1 Qdb7 Kg1 Rfe2 Rf2 Re1+ Kg2 Qd3 Ra2 Bb2 Ra5 Rf1 Na3 Qd2+
RQ3B1k/1NP4r/pr1q1PqR/4b3/2bN2Qb/bP1n1Q2/Q2n2P1/1Br2K2 w - - 0 1 illegal: No possible last move
4Rq1b/K1P1p1QB/2P3R1/1kbr1N2/1n1n1QPB/n1rb4/2Qn2P1/2qQN3 w - - 0 1 legal: proof: e4 c5 a4 g5 d4 b5 axb5 f5 dxc5 fxe4 h3 g4 hxg4 Ba6 Be2 Bb7 Bf1 Bc8 Kd2 d5 Kc3 Kd7 Kd4 a5 f4 h5 c4 e3 b4 e2 f5 e1B f6 h4 b6 Kc6 f7 a4 b7 h3 Bg5 h2 Nc3 a3 Bh4 a2 Nb5 Rh5 Nc7 Nf6 Ne6 Bg3 Bd3 Ne4 Nf3 Bd6 Ne1 Nd2 Ng7 Na6 Bh7 Bf5 b8Q Bd3 Nf5 Rg5 Rf1 h1Q Qa7 Bh6 f8Q Rc8 Qg7 Qf8 Qb8 Rc7 Qc8 Rh5 Rc1 a1N Rf2 Rg5 Re2 Qf1 Re6 Qh1 Rg6 Nc2+ Kc3 Na3 Kd4 Qf1 Ra1 Nab1 Ra5 Na3 Rb5 Qh1 Rb8 Rh5 Qe6 Rg5 Re8 Rh5 Qe4 Bg5 Qge5 Bf6 Qee2 Bh8 b5+ Kb7 b6 Kc6 b7 Nb4 b8Q Rc8 Nf3 Qe1 Qc2 Qc1 Qg7 Rc7 Qed1 Rc8 Ne1 Rg5 Ke3 d4+ Kf2 Be4 Ke2 d3+ Ke3 Rh5 Kd4 Rc7 Nh6 Re5 Nf5 Rd5+ Kc3 Nf3 Kb3 d2 Ka4 Nd4 Ka5 Rc8 Qb2 Bd3 Qbc2 Na2 Ka6 Nb4+ Ka7 Rc7+ Ka8 Rc8 Qe2 d1N Ka7 Nf2 Qed1 Na6 Qb4 Ne4 Qbd2 Nb4 Qf4 Kc7 c6 Nd2 c5 Rb8 Qe2 Na6 Qef3 Rb3 Qfd1 Rc3 Rb8 Qc8 Ra8 Nb4 Rb8 Kd8 c7+ Kd7 Ne3 Kc6 Nf5 Qf8 Re8 Kb5 c6 Bc5+
3RKQ1B/PnP1r1bb/1rBp2q1/3N4/1Nqb2kB/1PB5/1qn1P3/1R3b1Q w - - 0 1 illegal: No proof kernel
2Q1r1RR/1NB4P/1Q1br3/rP1nn3/1p2r2N/1qP1rr2/1P1k1b1K/R4R1B w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 b4 Qd2 Ba6 Qd1 Bb5 axb5 Qa5 Bd2 Qc7 Bc1 Qd8 f4 Kf7 Kf2 Kf6 Kg3 d5 h4 e5 h6 g5 c3 a5 h7 d3 h5 a4 h6 g4 Ra3 d4 Rh3 d2 Qf3 d1R Rh4 e4 Rh5 e3 Bc4 e2 Kg2 e1R Kg3 d3 Qf1 d2 Ra1 a3 Rh4 a2 Rh1 Nc6 Kh2 Ra6 Na3 Ne5 Nf3 Re6 Qf2 Re3 Rf1 Qd5 Nh4 Rde1 Qg1 Rf3 Qb6 d1R Be2 Bc5 Nc4 Ne7 Na5 Rd4 Nb7 Re8 h8R Re4 h7 Bd6 Bc4 Qd1 Bd5 Qb3 Bc6 Nd5 Be3 Kg7 f6+ Kh6 f7 Re2+ Bf2 R2e3 f5 Kg5 f8Q Kf4 f6 g3+ Kg1 g2 f7 R8e7 Qc8 Re8 Kh2 g1B+ Kh1 Kg4 Bg3 Bf2 f8R Kg5 Kh2 Kg4 Rab1 a1R Bf4 Ra3 Ra1 Ra5 Rfg8+ Kh5 Bg5 Kg4 Bd8+ Kf4 Bc7 Re1 Nc5 Ke3 Nb7+ Kd2 Bd7 Rh6 Bh3 R1e2 Bg2 R2e3 Bh1 Rhe6
7K/k5rp/1n2b3/NR2Pq2/P1n4N/Q1PP1r1b/BNQ2NbB/bR4bb w - - 0 1 illegal: No proof kernel
2R2n2/K3P2p/4P1bP/2R2rQ1/2P3Bq/qQ1NB1NN/4n1k1/1r1rrqrN w - - 0 1 legal: proof: f4 b5 d4 f5 a4 e5 axb5 c5 g3 cxd4 Nf3 Be7 Ng1 Bg5 fxe5 f4 Ra4 f3 Ra1 Bf4 gxf4 Ba6 Na3 Bb7 Nb1 Bc8 Kd2 Kf7 Kd3 Ke6 Kc4 Kf5 Kc5 Kg4 h4 Kg3 e4 d5 b4 a5 c4 g5 h5 a4 h6 g4 b6 f2 f5 a3 f6 d3 f7 d2 f8N d4 b5 d3 e6 a2 e5 Qf6 e7 Ra7 b7 Be6 Kb6 Qf5 Bh3 f1Q Ne2+ Kf2 Qb3 d1R Ng6 d2 Ng3 Bf7 e6 Qg1 Nf4 Nf6 Nc3 Ra5 Nce2 Nc6 b8N Nd4 Nc6 Qf1 Ne5 Qe4 Ned3+ Kf3 Rg1 Bg6 Nh1 Re1 Neg3 d1R Be3 Ne2 Rg2 Qd4+ Kb7 Re8 b6 Rf5 Ka7 Nd7 Rb1 Qe4 b7 Nf8 b8Q Rc8 Qa8 Rb8 Qd5 a1Q+ Qa5 Qb2 Ra1 Qc3 Qd5 Qb2 Ra5 Qc1 Rc5 Qa3+ Qa4 Rbb1 Qe5 Rf6 Qg5 Rf5 Rc8 Ng1 Rb2 Ne2 Rb5 Qd4+ Rbc5 Qf6 Qh5 Qh4 Qg5 Qa1 Ne4 g3 Qa3 g2 Neg3 g1R Qa4 Qb2 Qb3 Re5 Bf5 Qc1 Nh3 Kg2 Bg4 Rf5 Ne5 Qb2 Nd3 Qa3+
3Nr1Qq/4N1Q1/1KR1P1r1/p1nP3r/BqR4N/PqbP4/1B3qb1/3qkN2 w - - 0 1 illegal: No possible last move
B3Q2q/2n3bb/NRp4Q/B2rbR1r/PP1P3N/q1q1Q3/k1Pq2K1/1q2Q3 w - - 0 1 illegal: No proof kernel
NB3nq1/b2QRK1Q/3pBP1P/1nkq4/1r5n/3q3r/N2PNNP1/2rR1q2 w - - 0 1 illegal: No proof kernel
Q1r1N3/Pb1Np1Q1/k2qP1P1/2KRb3/2bB2b1/1bnBP1NR/N7/1n2b2q w - - 0 1 illegal: No possible last move
Q2B1nK1/r4N1P/1N2rPr1/2q3r1/1b1P1pNR/4b3/b2QbP1r/1kN2B1R w - - 0 1 illegal: No possible last move, all moves rejected
1r3Q2/1kPn1Q2/Rb1nR1p1/2q4n/K4P1Q/1Bb1PNNn/3Q2Pq/bbB5 w - - 0 1 illegal: No proof kernel
7r/N1r1K2Q/pQR1B2r/1p2P1NQ/2bP2Qb/1R3B1P/P3qn2/1bnk1n2 w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 c5 gxh5 Qc7 b4 Qa5 bxc5 Qd8 c4 d6 c6 Bd7 c7 Qc8 c5 Bg4 c6 Qd8 Ba3 Bc8 Bc5 dxc5 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 d4 Kc4 e6 b5 Ke5 g5 h3 f5 h6 f4 h7 f3 e7 g4 e8Q f2 Nc3 g3 Rb1 a6 Qc1 g2 Qe1 Nf6 Rb3 Nd5 Rb2 Bf5 c8Q Bb1 Ke6 Nd7 c7 Ne5 e4+ Nd3 Nf3 g1R Bg2 f1B Qh5 Nf2 Ng5 Kd3 Na4 c4 Rb3+ Kc2 Bf3 c3 Nb6 Bc4 e5 Qf6+ Kd7 Ne3 Qb7 Be7 c8B Rg2 Qg1 Nf1 Qa7 Rg4 Qb8 Rh4 Qgg4 Kc1 Qb7 c2 Rg1 Rf8 h8Q Qg7 Q8h6 Rh8 Qh7 Kd2 Qc6 c1N Qc5 Bf6+ Kd6 Qg6 Be6 Qd3 Nc8 Qe2 Na7 Rac8 Qb6 Kd1 Rg3 Bd8 Rc3 Bcd3 Rc6 Bc4 Bg2 Bf6 Rb3 Bd8 Bf3 Bf6 Qe8 Rh6 Qeh5 Bd8 Ne4 Bh4 Ng5 Be4 Kd7 Bb1 Ke7 Rc7+
3b1n1b/5k2/1R1b1p1Q/1Kn1q3/4NPPr/4pBPP/rNR3N1/Q1q1B1Nr w - - 0 1 illegal: No proof kernel
1R2b2n/N2B3k/2QPBrn1/5Q2/2PpP2q/N4p2/PR2q2B/K1r1nBbq w - - 0 1 illegal: No proof kernel
2Q3rB/2b4r/qnbP2PN/2R2q2/qRPpkPB1/6pr/3QN1R1/1K1n2R1 w - - 0 1 illegal: No proof kernel
r2bbQNr/1RB1nqQ1/2P1k1NP/p1B1P3/n5P1/4n1K1/3R1qBp/4B1r1 w - - 0 1 illegal: No proof kernel
3r2n1/8/PB1p1k2/pbqK1b1B/1bPRQNn1/2qnPN2/Pr1R4/2QN3N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 Qg5 d4 Qf6 b5 Qa6 bxa6 cxd4 Kf2 Ke7 Kf3 f5 h4 g5 h6 b5 c4 f4 Ke4 g4 h5 f3 e6 f2 Nc3 g3 Rh2 d3 Kd5 d2 Nh3 b4 h7 g2 h6 g1Q Ba3 Kf6 e7 b3 e8Q b2 Bc5 b1Q Qe4 Qb2 Qdc2 Qb4 Rd1 Nc6 Qc1 Ne5 Bg2 f1N Bf3 Bd6 Nf2 Rb8 Nh1 Rb5 Rg2 Nh2 Bh5 Nhg4 Rh2 Qe1 e3 Qa3 Rg2 Rb2 Bb6 Ne7+ Kd4 Rf8 h8N Ng8 h7 Rd8 Nf7 Bc5+ Kd5 d6 h8N Bf5 Ng6 Qb4 Ng5 Qb5 Nf4 Bb4+ Kd4 Qc6 Nf3 Qc7 Kd5 Qc8 Qcc2 Qc7 Rb1 d1B Qd2 Bc2 Rd1 Ba4 Qc1 Bb5 Rd4 Nd3 Nd1 Qc3 Rd2 Qc5+
1B1Q2qN/1B3Pn1/qqbR3K/3B1P1P/r1bpR1Nb/2p1BP2/k2nr3/5Q2 w - - 0 1 illegal: No proof kernel
b2QR1n1/B1NR1pbP/4rq2/2pR2nR/1b4k1/N1P1P1B1/3rP1KQ/1q4n1 w - - 0 1 legal: proof: f4 b5 g4 e5 a4 h5 axb5 g6 f5 e4 Bh3 e3 dxe3 Ba6 fxg6 Bb7 g5 Bc8 Bg4 hxg4 Kf2 Ke7 h4 Ke6 b4 Kf5 b6 c5 c3 d5 h5 a5 g7 g3+ Kg2 a4 b7 a3 b5 a2 h6 d4 h7 d3 g6 d2 b6 Qd7 Nf3 Kg4 Ng5 Ra6 Rh5 Qd4 Ne6 Qe5 Na3 Qf6 Nc7 Nc6 b8Q Nd4 b7 Nf3 Qh1 d1Q Qh2 Be6 Bd2 Qb1 Be1 Bd5 Qd8 Re6 b8B Ba8 Rd5 Ng5 Ba7 Qb4 Rb1 a1B Rd1 Qb1 Rd3 Bb2 Rd2 Ne7 g8R Bg7 Re8 Ng8 Bf2 Ne4 Rh5 Ng5+ Rd5 Bc1 Re7 Bb2 Rd7 Bc1 Nab5 Ba3 Be1 Bb4 Na3 Ne7 Bf2 Re8 Be1 Ng8 Bf2 Re4 Be1 Rd4 Bf2 Rd2 Be1 Bf8 g7 Re6 Bf2 Nh6 g8R Bg7 Re8 Ng8 Be1 Qf4 Kh1 g2+ Kg1 Qe5 Kf2 g1N Kg2 Qd4 Bg3 Qf6
n1b4k/N1P5/1p2n1Q1/1PB2rPq/1NKR1b2/1B1NRq1N/pPn2q2/4r1Q1 w - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 Qb6 hxg5 Qb5 axb5 Bh6 Qg4 Bg7 Qd1 Bf8 Ke2 Kf7 Kd3 Kg7 g4 a5 c4 h5 f4 e5 g6 d5 c5 h4 c6 h3 g5 a4 c7 h2 Bd2 e4+ Kc2 d3+ Kc3 e3 Na3 e2 Nh3 e1N Be3 d4+ Kc4 d2 Nc2 d3 Nb4 a3 Bc5 Nh6 f6+ Kg8 f5 a2 g7 Nc2 Rb1 Bd6 f7+ Kh7 g8N Bf4 f8Q Nf7 f6 Nd7 Qd6 Nd8 f7 Ne6 Qe1 d1Q Ne7 d2 Nec6 Qf3 Na7 Rf8 Rd1 Qf2 Qb6 Re8 f8N+ Kh8 Bd3 Re7 Qg1 Rf7 Bh7 Rf5 Bg8 Rb8 Re1 d1Q Re3 Qdf3 Ng6+ Kg7 Nh4 Kh8 Ng2 Qh5 Ne1 Ra8 Qa6 Nb6+ Kb3 Rb8 Ned3 Na8 Kc4 Qhf3 Qc6 b6 Qe8 Qh5 Qg6 Qhf3 Qg3 Qh5 Rd1 h1Q Qg1 Q1f3 Nc1 Ba6 Rd4 Re8 Ncd3 Bc8 Bf7 Nd8 Kc3 Re4 Bb3 Ne6 Kc4 Qd1 Rg3 Re1 Re3 Qdf3
1n2k3/B1Pq2nP/qPq1p3/4Q3/rpb2b2/nKQR1B1B/N1RP2B1/6Nr w - - 0 1 illegal: No proof kernel
nR1B2qQ/PQ3P2/Bp4r1/2N2K1b/BP2RbqN/krpB2q1/3Pn2n/8 w - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 d5 hxg5 a4 c4 Kf7 cxd5 Ke8 Qb3 axb3 Ke2 Kd7 Kd3 Kd6 Ke4 c5 g4 e5 f4 h5 a4 b6 g6 c4 g5 h4 a5 h3 g7 b2 a6 h2 f6 Nc6 a7 Rb8 g6 Bb7 f5 Rh3 f7 Nd4 f6 Ne6 Nc3 b1N Nf3 Nc7 Bd3 Na8 Kf5 e4 Bb2 e3 Nh4 e2 Na4 e1Q Nc5 Qg3 Rg1 Nc3 Rae1 h1Q Re4 Be7 f8Q Ne2 Qf7 Bc6 Rc1 Be8 Rf1 Kc7 d6+ Kc6 d7 Kb5 Qd5 Bd6 Qb7 Bf7 Rf2 Qf8 d8Q Bf4 Be5 Qhg2 Bc7 Q2f3 Qd4 Rc8 Bd8 Rc6 Rg2 Qh2 Rg5 Qhg3 Rh5 Be8 Rh8 Qf7 Nd7 Ka4 Nc5+ Ka3 Qe5 c3 Ba6 Rh1 Qd4 Qf8 f7 Nf6 g8B Ng4 g7 Nh2 Bh7 Rb1 g8B Rb3 Bg6 Re6 B8h7 Bd7 Rg8 Bb5 Qh8 Bd3 Bh5 Rg6 Bg4 Bc2 Bh3 Bd1 Bf1 Nc1 Bfb5 Ne2 Ba4 Qg7 Rge8 Qf8 Bg5 Qg7 Rb8 Qg8 Bd8 Qh5+ Bg5 Rg7 Re6 Nd4+ Kf6 Qhg4 Bhd3 Rg6+ Ke7 Qe2 Re4 Qef2 Kd7 Bh5 Bd8 Qff3 Ke7 Ne2 Kd7 Rg5 Ke6 Rg6+ Kf5 Qfg4#
1b2Q3/PP1Np2P/1Q2brPq/1K4k1/pQ2r3/r4RnB/1B3b1Q/1qNn1R2 w - - 0 1 illegal: No proof kernel
2k5/p3PB2/3BbqQ1/Q1K1N1b1/PrP1RrR1/4qpn1/3n1BbP/3nB2N w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c3 e5 b3 c4 bxc4 d4 cxd4 exf4 Kf2 Kd7 e4 b5 a4 g5 d5 f5 d4 f3 Ke3 f2 d6 b4 e5 b3 e6+ Kc6 d7 Kb7 e7 b2 h6 g4 d5 g3 Kd4 g2 h7 f4 d6 Bh6 Nc3 b1N Nce2 Qa5 d8Q Qf5 d7 Qf8 Ng3 Nf6 Bd3 f1B Nf3 g1Q+ Be3 Nc6+ Kc5 Kb8 Ne5 f3 Qa5 Bg5 d8B Be6 Bc7+ Kc8 Bf2 Nd5 Bg6 Nd2 Bf7 Nc3 Bd6 Bg2 Qc2 Rb8 Re1 Nd1 Qg6 Nd4 Re4 Rb4 Be1 Qe3 Rg1 Qh6 Nh1 Rf8 h8B Qg7 Bf2 Qf6 Be1 Bgh3 Rgg4 Bg2 Bg7 Nf5+ Kc6 Qa3 Kc5 Ng3 Bh6 Bh4 Be3 Bg5 B3f2 Qe3+ Kc6 Rd8 Bb8 Rd3 Bd6 Rd4 Kc5 Qc3 Re3 Rf4 Re4 Qe3+
rb6/rP2NKQq/BnPB4/k1p1NN2/2P1r1P1/N1r2b2/3R1p1r/3nQR2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 a4 exf4 axb5 Qb6 d5 Qc6 dxc6 Bb7 Ra5 Ba6 Ra1 Bc8 Kd2 Kd8 Kc3 Kc7 Kc4 Kb6 Kd5 h5 c4 f5 e4 a5 b4 h4 g6 a4 g7 h3 e5 a3 e6 f3 g3 f2 e7 h2 e8Q a2 Qd4 f4 Bd2 f3 Bf4 Nh6 g8N Bd6 Bh3 f1R Ne2 f2 Qg7 Ng4 Ne7 Re1 Nd4 Re4 Rf1 h1Q Na3 Rh4 Rab1 a1R Rbd1 Rc1 Be5 Rc3 Ndf5 Bc7 Rd4 d6 Bf4 Nd7 Rd2 Bb8 Be5 Qh2 Ke6 d5 Kf7 d4 Bd6 Ne3 Bg4 d3 Bh3 Ka7 b6+ Ka6 b5+ Ka5 b7 Nd1 b6 Qh1 Bg4 Rh2 Bh3 Bc7 b8N Ra7 Na6 Bb8 Nb4 Ra8 Ra2 d2 Nd3 Rg2 Bg4 Qh7 Ne5 Rh2 Rc2 Ne3 Rb2 d1R Rd2 Rb1 b7 Rbb3 Bd1 Nb6 Bc2 Rb1 Ba4 Ra1 Bb5 Nd1 Ba6 Ra2 Nh6 Bg4 Nhf5 Bf3 g4 Ra1 Qc8 Rb1 Qe6 Rb5 Qh6 Rb4 Qe3 Ra4 Qe1 Kb4 Bb5 R4a7 Ba6 Ka5
rN2r3/b1kN4/2P1R2P/n1p3N1/b3r1P1/n1rKPq2/BR1N3p/2Qb2BQ w - - 0 1 illegal: No proof kernel
2rbR2q/6R1/1P2b1r1/bQ3b2/1N3P1n/rnPp2p1/1P2N2R/1kBQR1KB w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 Kf7 Kf2 Kf6 h4 d5 h6 g5 h5 a5 b6 e5 h7 d3 h6 g4 Qe1 d4 Ne2 a4 Ra3 g3+ Kg2 e4 Rc3 d2 Rc5 d1B Rh4 a3 Qf2 a2 Rc6+ Be6 Nbc3 a1R Kh1 e3 Qh2 Nd7 Rh5 Rc8 Rc7 Ne7 Bg2 Ng6 Kg1 Nh4 Bh1 Rg8 h8R Ra3 h7 Rg6 Na2 Nc5 Nb4 Be7 Re8 Nb3 h8R d3 R5h6 Qd4 R8h7 Bd8 Rce7 Qe5 Rhg7 Qb8 Nc3 Bg4 Qd2 e2 Qd1 e1B Ne2 Bc3 Nc6 Ba5 c3 Bd5 Re3 Be6 Nb4 Bh3 Nd4 Qe5 Re1 Bg4 Ne2 Bh3 Rgg8 Kf7 Rh5 Qh8 f6 Bhf5 Rh6 Rg7 Rh7 Kg6 f7 Kf6 Ref8 Rg6 Rgg7 Ke7 Re8+ Kd6 Rh6 Kc5 f8Q+ Kb5 Qd6 Kc4 Qe5 Na1 Nc2 Kb3 Qb5+ Ka2 Nb4+ Kb1 Rh5 Nb3 Rhh7 Ng2 Rh2 Nh4
Q3b3/q1P1rn2/2PPkN2/1RBn4/p3p1n1/rb1Q1BN1/R4nPB/B3b2K w - - 0 1 illegal: No proof kernel
bB5b/1npQ2PP/QB3P2/QNPQr2k/b2b4/5rnN/1K2p2q/n2R1R2 w - - 0 1 illegal: No proof kernel
Q1RQNN2/bn1nPR2/1P2r1Rp/3b1b1P/4r1qP/1RK1kB2/B2p4/1b1q4 w - - 0 1 illegal: No proof kernel
nR4Rb/2p2QPr/2Nkb1Pq/B1RP3P/2R4K/n3N3/B1p1Q1nn/3qr3 w - - 0 1 illegal: No proof kernel
n3b3/P1R3Pk/1Bn1n2b/r1q1p1R1/R1N1P2Q/2KRp3/1q2NrnP/1Q1B4 w - - 0 1 illegal: No proof kernel
4QR2/Ppq1q1kB/2B1rb1b/B6K/1P3p1q/nPP1RN1n/q3N2Q/1r2B3 w - - 0 1 illegal: No proof kernel
2r1N2B/p1q1q1P1/P1Rn4/4PP1Q/1N1nrk1p/1B2n2R/2QKBnb1/2b1B3 w - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 f5 exf5 g5 b4 Na6 bxc5 Nb8 h4 gxh4 c4 Ke7 f4 h5 g4 b5 a4 d5 f6+ Ke6 f7 b4 a5 d4 f5+ Kd7 c6+ Ke7 g5 d3 c5 b3 a6 b2 c7 h3 c6 h2 g6 Nf6 Ne2 Ne8 Na3 b1Q Nd4 Qc2 Be2 Nd6 Ndb5 Bb7 c8B Bh6 c7 Nc6 Bd2 Nd4 Be6 Bg2 c8Q Qcc7 Rc1 Kf8 Rc6 Kg7 Bb3 Qde7 Nc2 h4 Qe8 Rg8 Nb4 Rc8 Qc2 Be3 Kd1 Kh6 f8B+ Kg5 Be1 Kf4 Bg7 Bc1 Bh8 d2 Qf7 Rgd8 g7 Rd7 Qh5 Rdd8 Nc3 Rd7 Ne4 Rdd8 Rg1 h1N Nf6 Ne6 Bbc4 Ne4 Bb3 Rd4 Ba4 Nd6 Ne8 Re4 Bb3 Nd4 Qh7 Bf3 Rg3 Bg2 Qh5 Nf3 Qc3 Nf2+ Kc2 d1N Rh3 Qf7 Qd3 Ne3+ Kc3 Nd4 Qc2 Bb2+ Kd2 Qfe7 Ba4 Ba3 Bb3 Bc1+
2qr2b1/NQ1R2K1/1nP1r2R/r3Q1p1/1p1P3B/Rq4n1/RPPN2Bk/3nq3 w - - 0 1 illegal: No proof kernel
q3B1rB/kNR1nn1n/1p2RP2/pq2r3/KP3R1q/Q5b1/P2PR1N1/2r4Q w - - 1 2 legal: proof: e4 g5 c4 d5 cxd5 f5 f4 Bd7 fxg5 f4 g4 Bc8 h4 Bf5 h5 Bg7 h6 Bxh6 exf5 Bf8 b4 Kd7 d6 Kc6 g6 Kb6 d7 c5 g5 a5 g7 h5 g6 e5 Na3 e4 Rb1 e3 Nc4+ Ka7 Nd6 c4 Nh3 h4 Rh2 e2 Bb2 f3 Nf4 h3 Rc1 b6 Ng2 c3 Nb7 Ne7 g8R c2 g7 Nbc6 Bd4 Qe8 d8R Rh5 Rd6 Nd8 Re6 Nf7 Rh8 Qd8 g8Q Bh6 Bg7 Bf4 f6 Re5 Rh4 Qd4 Qh7 Rg8 Bh8 Qd8 Qd3 Qa8 Rb1 c1R Qa3 Qd8 Rb2 Qc8 Rc2 Qa8 Rh1 h2 Rc7 Kb8 Rg4 Ka7 Rg1 h1N Rh4 Bh2 Rf4 Nf2 Rh1 Bg3 Rhh4 Bh2 Re4 Nh3 Rhf4 Nhg5 Re3 Rc2 Qb1 Rc4 Qh7 Rcc5 Qh3 Nh7 Ree4 Bg1 Qh1 Bh2 Kf2 Nc6 Ke3 e1Q+ Kd3 Ne7 Kd4 f2 Bb5 f1Q Be8 Qb5 Re2 Rc4+ Kd3 Rc1+ Kd4 Rb1 Kc3 Rc1+ Kb2 Qh4 Kb3 Qd3+ Ka4 Bg3 Qb3 Qd5 Qa3 Qb5+
3N1Q1r/1RpN3p/2NnNq1Q/4nP1B/Pr1Rnr2/K1Pq4/1bB1q1kP/8 w - - 1 2 legal: proof: d4 e5 dxe5 a5 b4 f6 bxa5 Qe7 e4 Qd8 e6 Ke7 e5 Ke8 e7 Kf7 Bg5 Ke6 Bd2 Kd5 e6 Kd6 Bc1+ Kc6 f4 b6 g4 Ra7 f5 Kc5 Bb2 Bb7 Bc3 Ra8 Be5 fxe5 f6 Be4 Ne2 Kc6 Ng1 Bf5 gxf5 Kc5 Bg2 Kb5 Bf1+ Kc6 Kd2 Kd5 Kc3+ Ke4 Kb4 d5 a4 g5 f7 d4 a6 b5 a7 g4 Qc1 g3 Bc4 d3 Ra3 d2 Nh3 d1N Nc3+ Kf3 Ra1 g2 Rg1 e4 Rb1 e3 Ba2 e2 Qh6 e1Q Bb3 Nc6+ Ka3 Ne3 Ne2 Rb8 a8Q Nf6 Nhf4 Bg7 e8B Ne4 f8N Ba1 c3 Ne5 Nd7 Qf6 e7 Rb6 Rh1 g1R Bc2 Rf1 Ne6 Kg2 Nd8 Rf4 Nd4 Qe2 Rhd1 Rb8 N4c6 b4+ Kb3 Rb6 Bh5 N3c4 e8N Ncd6 Ng7 Rb8 Ka2 b3+ Ka3 b2 Nge6 Rb6 Rd4 Rb4 Rf1 b1Q Qc8 Qbe1 Qa8 Q1d2 Rb1 Qdd3 Qc8 Rc4 Rb7 Rb4 Nf7 Rc4 Qcf8 Rb4 Nfd8 Bb2+
1q5Q/q2N3P/QbP1q1B1/5Qp1/Pkb3P1/2pqRRrN/5q1B/QKnr4 w - - 0 1 illegal: No proof kernel
b2q3b/N3BQ2/P2b1BK1/1Pp1b3/RbP1BQp1/5Nn1/3q2kP/R3Brn1 w - - 0 1 illegal: No proof kernel
q1N1N3/3kpp2/Q1r2P1P/bBqP3Q/q1R4K/1n4Pn/1B1NN1R1/1r2n1q1 w - - 0 1 illegal: No proof kernel
2Q2qQ1/1P2p3/Bb1BP1n1/1r1R4/BRq2pqN/r1b2r2/NB3P1P/q1K4k w - - 1 2 illegal: No possible last move
2N1B1q1/q3rP1Q/1Q1P4/B3p3/2nQ1b1K/kr1qpnR1/P1RqP2N/5Qn1 w - - 0 1 illegal: No proof kernel
B2K2N1/5B2/rNQ5/3rPpb1/Bp1q4/bP2qPQR/P2R4/knBr1rq1 w - - 1 2 illegal: No possible last move
b6B/p1Q1PNBN/P3r3/Rq2Pp1q/n1Kb4/3QRr1r/P1b1B1k1/B3b3 w - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 d5 cxd5 Nc6 h4 gxh4 b4 Na5 bxa5 Qd6 Bb2 Qe7 Bc1 Qd8 e6 Ke7 e4 Kf6 Ke2 Ke5 Kd3 Kf4 g4 Kg3 g5 f5 a6 h5 e5 c5 d6 b5 g6 c4+ Kc3 h3 d4 h4 g7 h2 d7 h3 d5 Qb6 d8B Nf6 d6 Nd7 Nd2 Nc5 d7 Bb7 Bf6 Re8 d8B Ba8 Bb2 b4+ Kd4 b3 g8Q+ Kf2 Qg7 c3 Nc4 c2 Qd3 c1B Qc7 Bd2 Rc1 Be1 Nd6 Na4+ Rc5 Be7 Ba1 b2 Nf3 b1B Nf7 Bc2 Rg1 h1R N3g5 h2 Kc4 Rh5 Rd5 Bc5 Be2 Bd4 Rg3 Rf1 Ra5 h1Q Re3 Kg2 Bh8 Rf3 Bdf6 Qh3 Bfg7 Qg4 Qe4 Rh3 Nh7 Qh5 Qd3 Rg8 Bf6 Rg6 e7 Qb8 Bfg7 Re6 Qd1 Qb7 Qd3 Qb5+
1N1N4/RN3p2/2P1K1k1/4B2R/q1r1PPn1/nn1pnb2/QrqP4/3Br1NQ w - - 0 2 illegal: Other
1n1rB1N1/1rn1P3/1B4pQ/p2r1qK1/Q1b1k3/RB2P3/1PNq1qP1/1qB3R1 w - - 0 1 illegal: No possible last move, all moves rejected
3Q3r/3q1qrk/b1rp4/4n1qn/2BBqpP1/R1Q3P1/KRPPR3/N3N1R1 w - - 0 1 legal: proof: b4 c5 f4 g5 h3 e5 a3 g4 hxg4 exf4 Rh3 b5 Rh2 Bg7 Rh1 Bc3 bxc5 b4 Nf3 b3 Ng1 Bb4 axb4 Qc7 Ra5 Qb6 Ra1 Qd8 e4 Kf8 c6 Kg7 e5 h5 g3 f5 e6 a5 b5 f3 e7 b2 e8Q d6 c7 h4 b6 a4 b7 h3 Ra3 h2 Bc4 Nf6 Nc3 b1R Bb2 Ra7 Na2 Nc6 b8R Qd7 Qd8 Kh7 Bd4 Ba6 c8R Ne5 Rb2 Nh5 Nc1 f2+ Ke2 Rc7 Nb3 Rc6 Nf3 f1Q+ Ke3 Ra1 Rg1 h1Q Ne1 Qf4+ Ke2 Qg5 Qb1 f4 Kd1 Qd5 Kc1 Qe4 Rc7 Ra2 Na1 Qf7 Ra7 Qd7 Re3 a3 Re2 Qf7 Rb3 Qd7 Qb2 Qf7 Qc3 Rb2 Rd7 a2 Ra3 Rb7 Re7 Rbc7 Kb2 Ra7 Rb7 Qd7 Kb3 Qf7 Ka4 Qd7 Rb2 Qf7 Nb3 a1Q Kb4 Qa2 Na1 Qff5 Ka4 Rg7 Kb4 Qd7 Ka4 Qb1 Kb3 Qf7 Ng2 Qf1 Ka2 Qff3 Ne1 Qef5 Bf2 Q5d7 Bd4 Qe4
2n1kr1q/pP5B/2R2b2/1pNn1P2/q1R4N/Pr2N1N1/1P1BQKq1/1qr3Q1 w - - 1 2 legal: proof: e4 c5 d4 cxd4 c4 h5 g4 f5 gxh5 b6 exf5 Rh7 c5 Bb7 c6 Rh6 cxb7 Rh8 f6 Kf7 h4 e5 f4 d5 a3 g5 f5 d3 h6 g4 h7 g3 h5 d2+ Ke2 b5 h6 g2 Kf2 e4 Rh4 d4 Ne2 d3 Nbc3 Be7 Nd5 Na6 Rb1 Kf8 f7 Nc7 Qc2 d1Q Bg5 g1R Rc1 d2 Qd3 Rb8 Rc6 Qb1 Qc4 d1Q Bd2 Qb3 Bg2 Rc1 Bf3 Ne6 Bh5 Nc7 Bg6 Qe8 Qd3 Rd8 Qc4 Rd7 Ng3 Bf6 Rf4 Ne7 Rg4 Rg8 h8Q Qb4 h7 Qa4 Qf1 Nc8 Qe1 Bh4 Qe5 Bf6 h8N Re7 Qg1 e3+ Kf3 e2 Bh7 e1Q Qe2 Re5 Rgc4 Re3+ Kg2 Rec3 Ne3 Rb3 Kf3 Ke7 f8N Nd5 Ne6 Qf8 Nc5 Ke8 Ng6 Qf1+ Qef2 Qh3 Qe2 Qh1+ Kf2 Qfh6 Nh4 Rf8 Bg8 Qh8 Bh7 Qg2+
3NBB2/2p3Nb/2Rqb1n1/1PP1b2P/1N1r3K/kPN2r2/1r4Rp/1bQr1Q2 w - - 0 1 illegal: No proof kernel
2r4Q/RN1Kp2n/b3P2r/rr1N4/PPB3R1/1P1QpkB1/1b3nr1/B1r3B1 w - - 0 1 illegal: No proof kernel
r5kr/2B1Q1b1/K3P1n1/N2B2R1/ppPPN3/4b1R1/pP3QQb/q3n1Qn w - - 0 1 illegal: Other
2KN4/1qR1Qb2/3BPBP1/P1pRp2P/1N2Qb2/nrk1nn2/1pr3B1/B3b3 w - - 0 1 illegal: No proof kernel
3B1b2/k2nrK2/N2PRpP1/2PQ1PN1/1rN5/bqpB4/2pNrbQn/3R4 w - - 0 1 illegal: No proof kernel
N1Bn4/7P/q3KnpP/RQ1PN1r1/pQ2R1nR/1R6/1p1P3B/kr1r1bb1 w - - 0 1 illegal: No proof kernel
6Q1/3R1P1Q/q2pnk2/1NPKbbrP/r1Bb1np1/B5N1/2Pp2n1/2QQ3R w - - 0 1 illegal: No proof kernel
3QRqQ1/bK1pbP1R/3PN3/1Qp1P2B/Np6/1n1Prr2/3B2nk/2Q1rn2 w - - 0 1 illegal: No proof kernel
2N1bb2/1RpP1P2/2B1KB2/n1BRnNB1/p2r4/1p1Q2P1/k2rQP2/1q1b2r1 w - - 0 1 illegal: No proof kernel
1n1R2N1/1pP2Pr1/1PB5/pnKnkr1q/1R2N2Q/Q1r3R1/p1P3RB/b1b5 w - - 0 1 illegal: Other
kB1KnNr1/P1rnPPpn/1p3R2/P6R/p3b2Q/r4q2/Q2R2Bb/2R3N1 w - - 0 1 illegal: No proof kernel
Q4r1n/p5p1/KR6/1bN1P3/1kpBNQ1B/2NPq1b1/bPr2RP1/2r3Nn w - - 0 1 illegal: No possible last move, all moves rejected
n1K5/2N1R3/3pRpP1/2qQ2Pq/3Q1P2/R1bpqN1k/R1brB1rP/4B2n w - - 0 1 illegal: No proof kernel
6Qr/BR1p2QR/1R2Pqp1/1PP1N1kB/1K6/2pq1RP1/2n1rb1b/1n1q1N2 w - - 0 1 illegal: No proof kernel
rb2Rq1N/1pQ4P/2bRpr1P/3r2N1/1nR1P1B1/K3p3/1R1P1Bk1/2Q1n2q w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 g4 d5 gxh5 f4 c4 Bh3 cxd5 Bf5 Qe2 Bc8 Qe3 fxe3 Kd1 Kf7 Kc2 Kf6 Kb2 Kg5 h4+ Kf4 a4 c5 a6 g5 h6 e6 h5 g4 a5 c4 d6 c3+ Ka3 g3 a7 c2 a6 g2 h7 Ne7 d7 Bg7 h6 Nec6 Nc3 Qg5 d8R Na5 Bb2 c1Q Rb1 Qe7+ Rd6 Bd4 Nb5 Nbc6 Nh3+ Kf3 Ng5+ Kf4 Be2 g1R Bg4 Rb8 a8Q Rf1 a7 Ke5 f4+ Kf6 f5 Ke5 f6 Kf4 f7 Kg3 f8R Bd7 Re8 Rd8 Qc8 Qf8 a8Q Rf6 Qab8 Ba7 Qbc7 Nb3 Rh5 Qg1 Be5+ Kg2 Rb2 Nb4 Bg3 Qh1 Bf2 Bb8 Qc1 Rg8 Q8c7 Na1 Rc6 Qg7 Rf8 Qg1 Nf7 Ba7 Rhc5 Qh1 Ng5 Qh8 Nd6 Nac2+ Kb3 Qg7 Ndf7 Ne1 Nh8 Ra8 Ra6 Bb8 Ka3 Bb5 Rc8 Rd8 Rc4 Rd5 Re8 Ba4 Rb6 Qf8 Rd6 Bc6+
6RQ/p1bBq1r1/2nP3R/1p1q2rK/NP2BQQb/p1Q2n1b/P3P3/4N2k w - - 0 1 illegal: Other
Nb1kr1b1/N5p1/PKP5/q1n2p2/2r1pRN1/1R2NPbB/4P2n/1Q2QbB1 w - - 0 1 legal: proof: d4 a5 c4 c5 g4 h5 gxh5 b5 b3 Qc7 cxb5 c4 b4 Qc5 dxc5 axb4 Kd2 f5 Ke3 e5 h4 d5 a4 c3 f3 b3 c6 e4 Kd4 b2 h6 c2 h7 Ba6 b6 Bd6 a5 Ra7 h5 Bd3 b7 Be7 h6 Bb4 a6 Nd7 b8N Bd6 Be3 c1B Qe1 Bg3 Bh3 Kd8 Ra3 Nc5 Nd7 Rb7 Rb3 Bc4 Nb6 Nf6 Na8 Ng4 Nd2 b1B Nf1 Re8 h8Q Rb4 h7 Ba2 Qf8 Bb8 h8N Nh2 Ng6 Bg3 Bf2 Bcf4 Ne3 Bb8 Ne7 Ra4 Nc8 Rb4 Na7 Ra4 Kc3 d4+ Kb2 d3 Kc3 d2 Kd4 Rb4 Qf7 Ra4 Qb7 Bf7+ Qb4 Bh5 Kc4 d1Q Kb5 Rh8 Kb6 Qa1 Qb1 Bg4 Q4e1 Nf1 Rh2 Re8 Rh1 Rc4 Rh2 Bge5 Rg2 Nh2 Rg3 Bh5 Rg4 Bg3 Rf4 Qe5 Bg2 Qc3 Nh3 Bg4 Bg1 Qd2 Nf2 Bh3 Nfg4 Qc3 Bh1 Bf1 Bg2 Ra4 Ra3 Bg8 Rb3 Rc4 Bh3 Qa5+
3kb2n/3P1qP1/3Qr3/1p1nQ2Q/NPPp1NQ1/2r1R3/1b1R1Kp1/1BB1n2n w - - 0 1 illegal: No proof kernel
3R2RR/Q1n2Bp1/1Kn3P1/p2n1Q1R/P1r1B3/N1rq1PpN/2Pb4/3rk2q w - - 0 2 legal: proof: e4 c5 d4 f5 exf5 h6 dxc5 b6 g4 Kf7 g5 Bb7 g6+ Ke8 b3 Ba6 Bg5 Bc4 bxc4 hxg5 Kd2 a5 Ke3 d5 Kd4 Kd7 h4 Kc6 a4 e5+ Kd3 e4+ Kd4 e3 f6 g4 f7 b5 f3 b4 h5 g3 h6 b3 h7 b2 Be2 Nf6 Rh2 Ne8 Rh5 Nc7 Na3 b1N Nh3 Nc3 Bd3 e2 Qg1 e1Q Be4 Bd6 f8R Bf4 Qf2 Bd2 Rd1 Qh1 Re8 Rf8 h8R Rf4 Reg8 Ra7 Qe3 Rb7 Qf2 Rb3 Qg1 Na2 Qf2 Nb4 Qe3 Rc3 Qf2 Kd7 c6+ Ke6 Kc5 d4 Kb6 d3 c5 Qd5 Qd4 Qf5 Qd7+ Ke5 Qe7+ Kd4 Qf7 Ne8 c7 Ke3 c8B Ke2 Qa7 N8c6 Be6 Nc7 Bf7 Rh4 Bed5 Rhc4 Be4 Ne5 c6 Nbd5+ Kb7 Na6 c7 Nc6 c8Q Nac7 Rb1 Qd7 Rb4 Qd6 Qf5 Ke1 Rb1+ Bc1 Rd8 d2 Rb6 d1R Rb3 Nde7 Kb6 Qd3 Rb5 Bh6 Rbd5 Bc1 Rdg8 Bd2 Rdd8 Ned5+
3Qr3/1q2R1nN/pq3pp1/k1NR1PP1/1bq3R1/K2B1Pn1/1P2R1bB/Q6b w - - 1 2 legal: proof: c4 b5 a4 d5 axb5 a6 cxd5 Ra7 h4 Rb7 h5 Rb6 h6 Rf6 e3 Rf4 f3 Qd6 exf4 Qxh6 Kf2 Qh3 Ke1 Qh2 d4 Kd7 Kd2 h5 Kc3 c5 Kb3 Kc7 g4 Kb6 g5 e5 d6 h4 d5 c4+ Ka3 e4 Bd3 c3 Nd2 g6 Nb3 e3 Nh3 e2 Rg1 e1Q Rg4 c2 Nf2 h3 Nc5 Ne7 d7 Qe3 d8R Nd7 d6 Nf6 d7 Nh5 Nfe4 Ka5 b6 Ng7 b7 Nef5 b8R Ng3 Rb7 Bd6 Qh1 Re8 Nf6 Qef2 Be3 c1Q Nh7 Qc4 Re1 f6 Re2 Qhg1 Bd4 h2 Be5 Qgc1 Qf1 h1B Rc7 Qb5 Qg1 Qcc4 Qa1 Qb6 Ra7 Qfd4 Rb7 Qdd5 Rc7 Bb7 f5 Bc6 Rb7 Bb5 Rc7 Qdb7 Bf4 Ne4 Bh2 Be7 Ra8 Bd6 d8Q Ng3 Rd7 Be5 Rc8 Bc3 Rd5 Be1 Rc7 Bd2 Qa2 Be1 Rce7 Bc3 Qb3 Bb4+ Ka2 Qd4 Qa3+ Ba4 Rg2 Qe4 Bb1 Kb5 Rf2 Bc2 Rg2 Bd3 Kb3 Qd4 Qa1 Bf1 Rge2 Bfg2 Ka2 Ka5 Bd3 Be1 Ka3 Qc4 Qd1 Bc3 Qa1 Bb4#
2R1Nkq1/1B3n1R/3rpNQq/1nP2rQp/Pp5r/1P6/P4BK1/nb2N2N w - - 0 1 illegal: No proof kernel
rBN5/1Bb4Q/2Pq2Q1/Bb1Bb1p1/1RRP4/PKprn1Pp/1Nq5/4kq2 w - - 0 1 illegal: No proof kernel
R2B1nr1/1nP2Q1N/K7/ppP2p2/Qn1kPRQ1/Qb3P2/2rq1qB1/2Nr4 w - - 0 1 legal: proof: d4 b5 h4 c5 a4 g5 b4 gxh4 bxc5 e5 dxe5 Bd6 a5 Bc7 Qd6 Bb6 axb6 Qc7 Qd1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 h5 Ka5 f5 g4 d5 e4 d4 f3 d3 c6 a6 c7 d2 b7 h3 g5 h2 g6 h4 g7 h3 Nc3 Nd7 b8Q Qh4 Nce2 Qf2 Qa7 Nf8 Bg2 Nh6 g8Q+ Nf7 Qg4 Rg8 c3 Nd6 Qa4 d1N Bg5 Nb2 Bd8 Nd3 Nc1 Bb7 Qc5 Bd5 Qca3 Bb3 c4 Ra7 Nge2 Ra8 Nc3 Qd2 Kb6 Nb7 Nd5 Ra7 Rg1 h1Q Nf6 Qh2 Nh7 Qg3 Rh1 h2 Rg1 h1R Ra2 Ndc5 Ra1 Qgf2 Ra2 Kd7 e6+ Kd6 e7 Ke5 e8Q+ Kd4 Qeh5 Nd3 Qf7 Rh3 Rh1 Rg3 Rh4 Rh3 Qg3 Rh1 Rf4 Ra8 Bg5 Rd8 Qg4 Rd5 Bd8 a5 Ka6 Re1 Ra1 Re2 Ra2 Qb4 Rd2 Qc3 Rd1 Rc2 Rh1 Rd7 Rh6 Qcd2 Rb6 Nd6 Rb8 Nb7 Ra8 Qd1 Qfe7 Nb4+ Ka7 Ke3 Qgg7 Rd3 Qgg5 Kd4 Qf7 Qde2 Qgg6 Rd1 Qg4 Nd3 Ka6 Qd2 c5+ Nb4+
n1B3q1/K1np1q2/N6N/1k1PbP1Q/1pRR1bQ1/rP1Nq3/1N2nPp1/2B5 w - - 0 2 legal: proof: e4 a5 c4 h5 a4 f5 exf5 b5 g4 hxg4 c5 b4 Nf3 Ba6 Ng1 Bb5 axb5 Ra6 Bh3 Nf6 Bf1 Rb6 cxb6 Ng8 Ke2 c5 Kd3 g5 Kc4 e5 d4 e4 h4 a4 h5 g3 h6 a3 b3 e3 h7 a2 d5 e2 b7 e1Q b6 g4 Kb5 c4 Bd2 c3 Bh3 c2 Nf3 c1Q Nc3 Qee7 Bf1 Bh6 Rh4 Na6 b8Q Nf6 b7 Rf8 Rb1 a1B h8N Qg7 Bd3 Ke7 Qf4 Ne8 Na4 Be5 b8N Kd6 Ne1 Qg8 Bc4 Qe7 Kb6 Qc3 Kb7 Qe3 Nb2 Kc5 Nf7 Bg5 Nh6 Qef7 Ka8 Kb6 Qff3 Ka5 Rc1 Kb6 Rh1 Bgf4 Bb5 Ka5 Bc6 Kb6 Bb7 Kb5 Rc8 g2 Rf1 g1N Bc1 g3 Rc4 g2 Qh5 Qfg7 Qdg4 Ne2 Rh1 Rf6 Bc8 Rb6 Ka7 Q7f7 Bd2 Rd6+ Rd4 Rc6 Ned3 Rc1 Rf1 Ra1 Rc1 Ra3 Rc4 Nac7+ Na4 Na8 Bc1 Nf6 Na6 Ne8 Nab2 Nec7
Rq3qQR/2P1B3/pnb1Nn1p/B6P/P1B3B1/p1P5/NKnkqQr1/5b2 w - - 1 2 illegal: No possible last move, all moves rejected
2qR2N1/2N4n/1k1p1p1Q/1rnPBNbP/4qRnN/PB3P1p/1Q3K1b/1b6 w - - 0 2 illegal: No proof kernel
4RNbN/r3Pp2/1b1p4/2q1R3/Q1pKb1RR/Q3P3/BPP1r3/bb1kn1B1 w - - 0 1 illegal: No possible last move, all moves rejected
R2r4/1kP1Q2n/2b1p1Bq/1p3N2/1RRB1P1q/6pQ/rP3K1P/1RN2nrr w - - 0 1 illegal: No possible last move
2Bn1RNq/q3rb2/1pP1bp2/P4B2/K1kr4/1pP5/Q1N2P1b/bQBRB3 w - - 0 1 legal: proof: e4 a5 d4 d5 h4 c5 b4 g5 hxg5 Nd7 dxc5 axb4 Qd3 d4 Qd2 Nb6 Qd1 Nd5 exd5 Be6 Nf3 Bf5 Ng1 Bc8 Kd2 Kd7 g4 e5 a4 h5 d6 Ke6 g6 Kd5 d7 e4 c6 b3 g5 h4 g7 h3 g6 d3 Kc3 h2 Nh3 e3 Ng5 e2 Nh7 d2 Bh3 e1B Na3 Qc7 d8B Ra7 Bf5 Ne7 Kb4 Be6 g8Q Kd4 Rf1 h1Q Nf6 Rh4 g7 Rg4 Rg1 Qh8 Rb1 Qb8 Ba5 Re4 Rg3 b6 Rf3 Rb7 Qe2 Ra7 Qh7 d1B+ Kb5 Rb7 Ng8 Bc3 Rf4 Ba1 Be1 Qa7 a5 Nc8 Qh1 Bd6 Ka4 Re7 Rf3 Rh4 c3+ Kd5+ Rf4+ Kc5 Qd2 Bh5 Qa2 Bc7 Qe4 Nd6 Nc2 Nb7 Bcd2 f6 Rd1 Nd6 Ne3 Bd5 Bc1 Bd8 Qeb1 Be6 Nc2 Nf7 Rb4 Bc7 Rbd4 Bf4 Rd8 Kc4 Rf8 Nd8 Nh6 Bh2 g8B Bd5 Bge6 Bf7 Bc8 Rd4 Ng8 Bde6
r3R2q/1NKnb3/1QRpRp1N/3q2BP/q3B2p/RP1P4/7P/qkr1Q1q1 w - - 0 1 legal: proof: c4 h5 g4 e5 f4 h4 b3 b5 cxb5 exf4 a3 Nc6 Qc2 Bb7 Qd1 Nb4 axb4 Be4 Kf2 Bg6 Ke1 Bh5 gxh5 Qg5 Bb2 Qf6 Bc1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 Kd5 Kf5 b6 g5 b7 a5 b8R g4 b5 g3 b6 g2 b7 a4 Nh3 g1Q Qe1 d6 Kc6 Ke4 Na3 f3 Rc8 c4 b8Q c3 Bg2 c2 Nc4 a3 Qb6 a2 Na5 Be7 Nb7 Nf6 e3 Kd3 e4 f2 e5 f1Q e6 Qg8 Ng5 Qf5 Kc7 Nd7 Bf3 f6 Nf7 Rh7 Nh6 Qh8 Re8 Qd5 Rc8 Bf8 e7 Rg7 e8R Be7 Bg2 Qgd4 Rf1 Qa4 Rf5 Rg4 Re5 Rf4 Re6 Rf1 Rb1 a1Q Bh1 Qb2 Ra1 Rg1 Ra3 Qa1 Bb2 c1Q+ Bc3 Kc2 d3 Qdg5 Be4 Qd5 Bd2 Rh1 Bg5 Qe3 Qea5 Rc1 Qe1 Qg1 Nc5 Bf8 Nb7 Kb1+ Kd8 Ra6 Rc6 Ra8+ Kc7 Be7
3k2B1/4N1rQ/1pr3P1/KP3nqQ/4p1R1/3PpQq1/2qnPBqR/1N3Qq1 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1n3Q/1BNp1R1q/3P2R1/p1rQ3r/P3PQ1r/Pn3Krr/5p2/4BNkr w - - 0 1 illegal: No possible last move, all moves rejected
k5r1/b1Pqp1b1/2PQ1R1B/2B2Kpn/QNpB4/R2nB3/P1P3p1/r2N1b2 w - - 0 1 illegal: No proof kernel
4Q1R1/2BNp1pr/Br1PPQ2/3bq2P/1p3NRp/2nPk2B/n4r2/1n1B1K2 w - - 0 1 illegal: No proof kernel forced: wxDB
n1k1q1KB/B1pN1r2/1pR2p1N/1nPr4/QpNP4/QPR3nr/P2b4/6N1 w - - 0 2 legal: proof: f4 g5 fxg5 d5 e4 a6 exd5 Bh3 Na3 Bg4 Nb1 Bc8 g4 Nf6 h4 Bd7 Bb5 axb5 h5 Bf5 Nh3 Bd3 Ng1 Bg6 hxg6 Ng8 Ke2 Kd7 Kd3 e5 Ke4 h5 Kf5 h4 c4 e4 d6 h3 g7 h2 g6 e3 g5 e2 Qa4 e1R b3 Qe7 Na3 Kc8 d7+ Kd8 d4 Nf6 g8N Ng4 g7 Qb4 g6 Re7 Nh6 Re4 g8Q Ne3+ Kf6 Re7 g7 Nc2 c5 Qa5 Nc4 Qe1 Bd2 Na3 Ba5 b4 Bb6 Nb5 Rc1 Re5 Qa3 Rd5 Rc3 Qe8 Ba7 Bd6 Qh7 Bf4 g8N Bd2 Qf5 Rh7 Qe6 Rg7 Qea6 Rg3 Q6a4 Rh3 Bb6 Ra6 Kg7 Ra8 Kh7 Ra6 Ba7 Rf6 Kg7 Rff3 Nf6 Rf4 Ne2 Rf1 Rg1 h1N Rg6 Ng3 Kh7 Nc6 Ng1 Ne7 Kg7 Nc8 Kh7 Nb6 Kg7 Ke7 d8B+ Ke6 Be7 Na8 Nd7+ Rf6 Bd6 b6 Be5 Ke7 Kh7 Kd8 Kg7 Rf3 Rc6 Kc8 Bf6 Re3 Kh7 Re7 Bh8 f6+ Bg7 Qh5 Kg8 Rf7 Bh8 Qe2 Nf8 Qe6 Nd7 Qe8+
6nQ/k1p1prBr/2p1P1rR/1qR2PK1/2b5/PRP5/2p1N2Q/1NR1nn1B w - - 1 2 illegal: Other
5k1q/1BPq3b/1Pr3RN/P1qpr1b1/N1p2nN1/1pP1K3/pQ6/1QB1NR2 w - - 0 1 illegal: No possible last move
nQ2b2B/2B3N1/Q2p1qbP/N1p3B1/1Prn3q/8/p1PPBpk1/2KRqR2 w - - 1 2 illegal: No proof kernel
3b2QQ/1Np1r1r1/1R1p4/2n2ppB/QN3kPP/2R1n1q1/2PPqqB1/3Q3K w - - 1 3 legal: proof: a4 b5 axb5 e5 f4 a5 fxe5 a4 b6 a3 b3 Bb4 Nf3 Be7 Ng1 Bf8 g4 h5 Bb2 h4 Bd4 Bb7 Bf2 Bc6 Bg3 Ba4 bxa4 hxg3 h4 Ke7 e4 Ke6 a5 g5 b7 f5 a6 a2 a7 d6 Rh3 g2 Kf2 Na6 b8Q Qd7 Na3 Ne7 Rb1 a1Q Rb6 Qb5 Nf3 Qa4 Kg1 Ng6 Nc4 Q4a2 Na5 Qb3 Nd4+ Kf7 e6+ Kf6 e7 Ke5 e8Q+ Kf4 e5 Rg8 e6 Rg7 e7 Ne5 Qa4 Nc4 e8B Be7 Rc3 Nc5 Ndc6 Bd8 Nb4 Ne3 Nb7 Qe6 Bg6 Qa3 Bh5 Qc4 Qc8 Qe2 Qe6 Rc8 a8Q Qb3 Qg8 Re7 Kh2 g1Q+ Kh3 Rg7 Bg2 Qgf2 Kh2 Qa3 Q8a7 Ra8 Qb8 Ra5 Kh1 Rb5 Na2+ Rb4 Qc8 Re4 Nb4 Ree7 Qh8 Qb3 Qb8 Qd5 Qc8 Qdf3 Qe6 Q2g3 Qeg8 Qff2
Bn2b3/R3nQ2/PRn2N1P/N1r2p1R/2pQ4/1ppR1P2/1nPq2B1/2k2Kr1 w - - 1 2 illegal: No possible last move, all moves rejected
BQ2QN1B/RB1bb3/1p1pn3/1PP4n/1PR1pk2/3qr3/BP2p3/Nn2n2K w - - 0 1 illegal: No proof kernel
7Q/1NPk1pR1/NR1r1q1N/b5Pp/4p2r/KP1r1rQ1/2BNnp1P/2B1n3 w - - 0 1 legal: proof: e4 b5 d4 d5 a4 c5 dxc5 g5 axb5 d4 f3 Bb7 f4 Bd5 exd5 gxf4 Kd2 a5 g4 h5 c4 e5 Kc2 e4 Kb3 d3 c6 f3 d6 d2 c7 f2 c8Q a4+ Ka3 Ne7 b6 Rg8 b7 Nd5 b3 Nc3 c5 Rg7 d7+ Ke7 c6 Ra5 c7 Rf5 Nf3 Nc6 b8N Nb4 Nh4 Rf3 Na6 Nd3 Rg1 Ne1 Bd3 Ne2 Bc2 Rg6 Ra2 Rd6 Nf5+ Ke6 Nh6 Qf6 d8N+ Ke7 Kb4 a3 Nb7 Bg7 Ra1 a2 Qh8 Kd7 Ka3 Rdd3 Nf5 Bh6 Rg2 Be3 Nh6 Bb6 Rg1 Ba5 Rg3 Ng2 Qg1 d1R Nd2 Ne1 Qg2 Rf5 Re3 Rf3 Qg3 Rd6 Rc3 Rdd3 Rc5 Rd6 Rg5 Rdd3 Rg7 Rd6 Rb1 Rdd3 Rb2 a1R+ Ra2 Rd6 g5 Rb1 Nf1 R1d3 Nd2 Rf4 Bd1 Rh4 Rc2 Re3 Rc6 Rf3 Bc2 Rdd3 Re6 Rb2 Rb6 Rb1 Bb2 Rd1 Bc1 Rd6 Nb1 R1d5 Nd2 Rdd3
1n3B2/P3b1B1/2b1k3/NQ1p2bN/p1B1p3/PR1rRp1b/q1bQP2P/2K3B1 w - - 0 1 illegal: No proof kernel
3Q1QQ1/Ppbr1R1P/2p1PB1N/7R/4qN2/Qppnp3/2P1rkB1/4nq1K w - - 0 1 illegal: Other
N5kr/1ppp2r1/B3N2p/1B1n3P/2P1KRq1/pQ1P2n1/P2B3B/1qR3bQ w - - 1 4 legal: proof: e4 g5 f4 f5 fxg5 Nh6 exf5 Ng4 Na3 Nh6 Nc4 Ng8 Nb6 Bg7 Nxc8 Bxb2 Kf2 Kf7 Ke3 e5 h4 a5 g4 h6 h5 a4 f6 a3 g6+ Kf8 g5 e4 f7 Rh7 Nf3 Rh8 Rh4 Ra5 Rf4 Rf5 Nb6 Kg7 Nd4 Rc5 Ba6 Qc8 d3 Rc4 Qh1 Nc6 Bd2 Nce7 Rc1 Qe8 Na8 Nf6 f8B+ Kg8 g7 Qg6 Ne6 Rc5 c3 Ned5+ Kd4 e3 Bd6 e2 Bb5 e1Q Ba6 Kf7 g8B+ Ke8 Bb5 Ne4 Ba6 Qf5 g6 Ng3 g7 Qg4 Be5 Qed1 Bf7+ Ke7 g8Q Qc2 Bb5 Qb1 Ba6 Ne2+ Ke4 Rc6 Ng5 Rg6 Bb5 Rg7 Be6 Nb6 Bec4 Nd5 Ne6 Ba1 Ba6 Bb2 Bcb5 Ba1 c4 Bd4 Qd1 Bg1 Qb3 Nd4 Qh7 Nf5 Bd6+ Kf7 Qg6+ Kg8 Qg5 Nd4 Qh4 Nf5 Qh1 Qh3 Rg4 Qh4 Bh2 Qh3 Rf4 Qg2+ Rf3 Qg4+ Rf4 Ng3+
3K4/1N1p2Pp/1rPRn3/qr1R1r2/p6P/1Bp1pn1R/PRQB2N1/k1r4Q w - - 0 1 legal: proof: d4 c5 c4 g5 f4 b5 fxg5 bxc4 Nd2 c3 Nb1 c4 Qb3 Bh6 Qd1 Bg7 Na3 f5 Nb1 Bb7 e4 f4 Bd3 Bd5 Be2 Be6 Bf1 Bf5 exf5 Be5 Bd2 Bd6 Bc1 Bc5 dxc5 Qb6 Nf3 Qa5 Ng1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 e4 Kd6 f3 g4 e3 h4 c2 b4 c3 f6 f2 g6+ Kf8 f7 Kg7 f8R a4 b5 Qg5 Kc7 Qf4+ Kd8 Qh2 b6 Ra7 b7 Nh6 c6 Na6 b8R Qg2 g5 Qe4 Ne2 Nb4 Na3 Ng4 Nb5 Qf5 Nd6 Nh2 Nf4 Ra6 Bc4 f1R Bb3 Nf3 Nb7 Nd5 Ng2 Nf4 Rh3 Rb6 Bd2 c1R Qc2 Qa5 Rb1 Rg8 Rb2 Rf2 Re8 Rf8 Ra8 Rf5 Re6 Rfb5 Rb8 Kf8 g7+ Kf7 Rd6+ Ne6+ Kc8 Rff1 g8Q+ Ke7 g6 Kf6 g7 Ke5 Qd1 Rf2 Qh1 Ke4 Qf7 Nfd4 Qg6+ Rff5 Ra8 Kd3 Rb8 Ng5 Kd8 Nf3 Bg8 Rc5 Rb5 Kc2 Be6 Re5 Bb3+ Kb1 Rc5 Ka1 Rcd5 Rg5 Qc2 Ref5 Ra8 Qc5 Ra5 Qb4 Rab5 Qa5 Bc4 Rh5 Rb2 Rhg5 Bb3 Ne6+ Ke7 Rg4 Ke8 Rgb4 Ke7 R4b5 Ke8 Nc5 Kd8 Ne6+
2r2R2/Bpn1N2B/1q1P1p1p/2p1P2P/Q1B3B1/R2ppK2/b1P2r1N/1k3qQ1 w - - 0 1 illegal: No possible last move, all moves rejected
bRQ3N1/4N1P1/1ppQp1R1/1np2p1K/B2R1q1p/2P1r1n1/pP2P2R/2k2B2 w - - 0 3 legal: proof: f4 g5 fxg5 d6 a4 b6 a5 Na6 Ra2 Rb8 Ra4 Rb7 Ra1 Nb8 a6 Nf6 axb7 Ng8 Na3 a6 Nb1 a5 h4 Bf5 g4 Nc6 g6 Be6 g5 Qd7 h5 Nb8 h6 Bg7 hxg7 Qd8 d4 Bg4 Bd2 Bf5 Bb4 Bc8 Bc5 dxc5 Kf2 Kd7 Kf3 Kd6 c3 Kd5 Rh2 Kc4 d5 h5 d6 f6 d7 h4 Kg4 c6 Nf3 a4 Qd6 Kb3 Ne5 Kc2 Nd2 a3 Ne4 a2 Rd1 Qf8 Rd4 Na6 b8R Bb7 d8Q Qf7 Qc8 Nh6+ Kh5 Qf8 g8B Rh7 g7 Ba8 g6 Kc1 Bb3 Nc7 g8R Nb5 Ba4 Rf7 Rg7 e6 Rg8 Nf5 Rg7 Ne3 Rg8 Rd7 Rg7 f5 Nf6 Qd8 Ng8 Qc7 Ne7 Rd8 Nf7 Rd7 Nh6 Rd8 Qd5 Qf4 Nhg8 Rd7 Qe5 Rd5 Qd6 Re5 Rh7 Re4 g7 Re5 Rh6 Re4 Bh3 Nf1 Rg6 Re3 Bg2 Nd2 Bh3 Ne4 Bf1 Ng3+
1rrnr1KR/2Q2Q1p/Q1Q1PqbP/1Nq5/1P2q3/4p2n/N2RPb1B/k1b4B w - - 0 1 illegal: No proof kernel
2B1B2R/1p1QNr1P/1P3np1/3rR3/1Kn2kP1/2N1q2b/Pqr2b2/1Bb1B1Qq w - - 0 1 illegal: No proof kernel
RR2Q3/b6n/1p2Nb1k/Nrp1n2r/2P1Pnq1/1Brb3B/1PP5/1KB1Q1qB w - - 0 1 illegal: No proof kernel
n1bK1b2/1p2r3/qN1n1BPp/2kN1Q1b/6P1/1Brrq1BR/1P2R2P/BqQ5 w - - 0 1 illegal: Other
3B2r1/1Bn1rP1N/1p1Bp1q1/br2P2k/6R1/b2BQKnn/1P3PQR/1b4rN w - - 0 1 illegal: No proof kernel
Q4r2/bp2B3/2rNR1rk/nr4nB/1BP3QN/1B1K1Ppq/bP3qP1/R2r4 w - - 0 1 illegal: No proof kernel
q3nR2/4pq2/1r1bPB2/Qr1k3B/qP2n2p/1P3N1P/1K3Q2/nn1NBbBR w - - 0 1 legal: proof: g4 f5 c4 fxg4 a3 d5 cxd5 b5 Qb3 b4 axb4 Nh6 Qd1 Ng8 e4 Kf7 d4 g5 Kd2 h5 Kc3 a5 f4 c5 e5 g3 d6 Ke6 b3 g4 f5+ Kd5 f6 g2 e6 h4 h3 c4 f7 g3 d7 a4 Bd2 a3 Bg5 a2 Bc1 Bh6 f8B Ra6 Qd3 Rb6 Kb2 c3+ Kc2 Bf4 Nf3 g1Q Be2 g2 Nh2 Nf6 Qd2 Na6 Bh5 Bd6 Qf2 Ne4 Bd2 Nc7 Nf3 Ba6 Bg7 Qf1 Bf6 g1N Be1 Qa8 d8B Ne8 Bc7 Rb5 Bb6 Rf8 Kc1 c2 Kb2 Ne2 Ba7 Rg8 Bb6 Rg5 Ba7 Rb6 Nc3+ Kc6 Rb1 a1N Nd1 N2c3 Rc1 Qb5 Rf1 Qa4 d5+ Kb7 Rh1 Bf1 Rb1 Bc7 d6 Kc6 d7 Kd5 d8Q+ Bd6 Rg1 Re5 Rg8 Rf5 Rc1 Nb1 Rf8 Na3 Rb1 c1Q+ Ka2 Qf4 Kb2 Rb5 Rc1 Nb1 Qa5 Re5 Qh2 Qf5 Bg1 Qh7 Qg2 Qf7 Qf2 Nc5 Rc4 Rb6 Rg4 Rf5 Rg2 Re5 Rh2 Rf5 Rh1 Re5 Qa7 Ne4 Qa5+ Kc6 Qd4 Reb5 Qf2 Kd5
n3R2b/1b1k1bQ1/4N2r/1K3pp1/rnQ2P1q/P1B1qbRB/Q1q1P1P1/Q4N2 w - - 0 1 illegal: No proof kernel forced: bxLB
Qn4Rr/pN4BP/4bb2/P5q1/1b1p1BnQ/bB1B4/PnKPn2R/N4kr1 w - - 0 1 illegal: No proof kernel
k6K/BpRpn1Qb/1PP3nr/N1r2R1N/1r2N1b1/b2P1PNb/B5r1/3q2Q1 w - - 0 1 illegal: No proof kernel forced: wxLB
2nb1r2/1ppb1kB1/1PNR1P2/R2b1r2/1bR5/2PK1QQB/r1rP1Nnq/4R3 w - - 0 1 illegal: No proof kernel
6Q1/pN1k4/b2Nbp1r/3n1BBr/R1P2P2/Pr1NrKR1/n4bPQ/3bq1N1 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 h4 gxh4 bxc5 Bh6 Qd2 Bg7 Qd1 Bf8 e4 d5 Ke2 b5 c4 h5 f4 d4 a3 b4 e6 d3+ Kf3 h3 c6 h2 e5 h4 c7 d2 e7 f6 Bb2 b3 Ra2 h3 Bc3 b2 Bd3 Nc6 Bf5 Ba6 c8Q Rh6 Qe2 d1B Be1 Rh5 Bh4 Nb4 Nd2 b1B Bg5 Rb8 Rb2 Na2 Rb4 Rb5 Qe6 Qa5 Nb3 Rb6 Ra4 Qe1 Nc1 Rb3+ Nd3 Rh6 Be4 Bbc2 Qf7+ Kd7 e8N+ Ne7 Qg8 Nd5 Nd6 Be7 Nb7 Bc5 Bh7 Bf2 e6+ Kc7 e7 Kd7 Ke4 Rh5 Qe3 Bg4 e8N Bcd1 Ned6 Be6 Bf5 Rh6 Ne2 Rh5 Rf1 h1R Qg3 h2 Kf3 Rg1 Qh3 h1R Qh2 Rh6 Qg3 R1h5 Qh2 Be3 Kg4 Bd4 Rf3 Rf1 Ng1 Rf2 Kg3 Re2+ Kg4 Be3 Rg3 Bf2 Kf3 Re3#
1B1rq3/2nP1Q2/1p4B1/1K1N2p1/n1pPB1RN/bbPn2bB/1Q4P1/1rR2rk1 w - - 0 1 illegal: No proof kernel
1R1qr1Rq/1PpQ3N/2B3Kp/P1Q2bpP/3nq1P1/Nb4R1/1R3r2/b3nkB1 w - - 0 1 illegal: No possible last move, all moves rejected
1bkB3R/Q4N2/3Rb2P/qNppP2n/1NPP1K2/q3r1rB/Qp1Nb1r1/4n3 w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 a5 b4 axb4 gxh5 Ra3 Bg2 Ra7 Bf1 Ra8 Kf2 g5 Kf3 d5 e4 Kd7 c4 f5 a4 c5 d4 b5 h4 f4 h6 b3 h7 b2 h5 b4 a5 b3 a6 Nf6 a7 Bd6 Ra3 Re8 h8N Qa5 Nd2 b1Q Qe2 Nc6 Nh3 Qa1 Nf7 Bb8 Nf2 Nb4 Nd3 Nc2 e6+ Kc7 e7 b2 Nb4 Be6 Bh3 Kc8 e5 Rg8 e8N Qa2 Rb3 Q2a3 Qd1 Rg7 Nc7 g4+ Ke2 g3 Kf3 g2 Nb5 g1R Qf1 Kb7 Qg2 Rg8 Qg7 Rg2 Rh2 Kc8 Qh7 Ne3 Qb1 Nc2 Qa2 Bc7 Rh1 Rb8 a8Q R2g3+ Kf2 f3 Qa7 Ne1 Ke3 f2+ Kf4 f1B Rh2 Rg2 Rg3 Bd3 Rg6 Be2 Rh6 Rb6 Rh8 Rb7 h6 Rg3 Rg2 Re3 Rg6 Bb8 Ng5 Rg7 Nf7 Ne4 Rf6 Rgg3 Rg6 Bf5 Re6 Nf6 Rd6 Be6 Nf1 Rd3 Be3 Rc3 Nd2 Rd3 Bf2 Rg2 Bh4 Re3 Nd8 R8g3 Nf7+ Ne8 Bd8 Ng7 Bg4 Qb6 Bf5 Qba5 Bh3 Nh5#
1Bq2nr1/3pp2R/1R3KNP/2bPP1r1/P1B1R3/1r1N1Q1Q/b2qp1Rn/4q2k w - - 0 1 illegal: Other
1bK1nNr1/RQR2ppp/2QPqPr1/2n2Q1n/2P1r3/7P/1QNBb1B1/1q1k4 w - - 0 1 illegal: No proof kernel
N2r1r2/1n1b2NR/4Q3/p2Rb1P1/P1Pr1B2/pQK2N1p/2b1k1nP/1B1q1b1N w - - 0 1 illegal: No proof kernel
2bN4/3K1n1R/1P1bp2p/1QBrP2R/r5pQ/nB5P/P1r2qB1/N3kbrB w - - 0 1 illegal: No proof kernel
1bQ3rB/5Qp1/bN2r2k/B1n2BN1/2prr1P1/1qPP3K/p2nR1P1/1B2b1R1 w - - 0 1 illegal: No proof kernel
2b3n1/p2P3k/1n1B1rr1/3NrPqB/PRQn2np/6b1/pN1N1N1P/Q3RK2 w - - 0 1 illegal: No proof kernel
1k3B2/1Bq1PK2/B1r3nR/b1rn2p1/1B2p3/1qR1Pb1N/Q2P1pP1/Q1q2qN1 w - - 0 1 illegal: No proof kernel
5R2/Q3q1pn/b1pQp1P1/krP1n2n/1rQ5/1BPN2Q1/n3PR2/qK1Nb1B1 w - - 2 3 illegal: No possible last move, all moves rejected
RQ4nb/pK6/Q3R1np/1N1nN1kb/P4p2/B1qP1P1P/B1B2B2/qr1rn3 w - - 1 3 legal: proof: e4 d5 g4 dxe4 b4 f5 Qf3 c5 bxc5 f4 Qe2 Qd5 Qd1 Qf5 gxf5 Bd7 Ne2 Be6 Ng1 Bc8 Ke2 Kf7 a4 Kf6 c4 g5 c6 b5 c7 e5 c5 b4 c6 g4 Ba3 e3 Kd3 g3 Ke4 b3 Kd5 e2 Nf3 e1Q Qe2 b2 Nc3 b1N Qa6 g2 Nb5 g1Q Bd3 e4 Bc2 e3 d3 e2 Ne5 Qc3 f3 Nd2 Re1 Kg5 f6 Ne4 f7 Bg7 f8B Bg4 c8Q Bh5 c7 Nd7 Bfc5 Nf8 Kc6 Nef6 Kb7 Nd5 Qb8 Ng6 c8B h6 h3 Qf1 Rc1 e1N Be6 Rh7 Bf2 Bh8+ Bf7 Rg7 Rb1 Ng2 Rb4 Qfa1 Rc4 Ne1 Rc8 Nde7 Ba2 Nd5+ Nd7 Re7 Rd8 Re2 Ne5 Rd2 Rc8 Ng2 Re1 Rd1 Re4 Ne1 Re8 Rd2 Re6 Rd1 Rd4 Nde7 Rd8 Nd5 Qc7 Rc8 Qcb6 Rc4 Ra8 Rb4 Qc7 Rb3 Qb8 Rbb1
Bkb2q2/2npp3/Q3P2K/R2PN3/PB1RB3/rrpn1q1B/1rP1q3/N5Qq w - - 0 1 legal: proof: g4 a5 f4 g5 fxg5 Bg7 b4 axb4 h4 Kf8 h5 Ra5 h6 Nf6 hxg7+ Ke8 g6 Ra8 g5 Ng8 a4 b5 Kf2 f5 Kf3 h5 Kf4 c5 d4 h4 e4 h3 d5 h2 e5 b3 Nf3 c4 Qe2 b4 Bd2 Nh6 g8B b2 g7 b3 g6 Nf7 Bh7 Na6 g8B Rb8 g7 Rb4 e6 Ne5 Kg5 f4 Bf5 Rh3 Bgh7 Rb6 Rg1 h1Q Rg4 Rg3 Be1 Qh3 Nbd2 b1Q Bd3 b2 Nb3 Qd1 Ba5 Qh1 Bh3 b1R Kh6 Rb4 Ra3 Rb2 Na1 Rb7 Rc3 Qdf1 Ng5 f3 Rd4 f2 Bhe4 Qfg2 Rb3 f1Q Nf7 Re3 Rb6 Qff3 Rb5 Rb8 Qf1 Qgf2 Be2 Ra3 Be1 Q2g2 Ra5 R8b3 Bb4 c3 Bb5 Qgf2 Qc4 Nd3 Ne5 Q2e2 Bc6 Qc7 Ba8 Kd8 Ng6 Qe5 Qc6 Qef5 Ne5 Qf8 Qb5 Kc7 Qc6+ Kb8 Qc4 Q8f7 g8Q Nc7 Qa6 Qe8 Qg1 Qef8+
2n1bbQ1/n2k1P2/p7/2Pr1pRN/Pb2NK2/2Qq1PpQ/1B1np1Q1/R3r2B w - - 0 1 illegal: No proof kernel
1K1RNk1B/4RPN1/nN1p3P/5Brp/1pN3r1/1b1PqbQ1/2rp1b1P/2nQ4 w - - 0 1 illegal: No proof kernel
nnB5/Bp2pq2/NP2P1r1/1N2P1Kb/pR4Q1/bq3p2/R2rrP1k/B1B1Q3 w - - 1 3 illegal: No proof kernel
b1b2Q2/p2P2rk/K2p1pbN/2RN1P2/N3p3/1B1PP1rQ/2q2N2/BRn2n1b w - - 1 3 illegal: No possible last move
B3r3/2Q1qkPK/QR1Rnb1p/p1p3b1/1NPB4/P2R3N/p4q1P/rb2R2r w - - 0 1 illegal: No proof kernel
2RKQN1N/pp1n3B/2PQ2bn/PPr4p/2prq2B/Q1q1k3/pbP5/1R3Q2 w - - 0 3 illegal: Other
k3n3/2q1b1Pr/N1p2R1p/pQP1p1QK/1pqN2B1/3nP2b/BP4Q1/R4Q1r w - - 1 3 illegal: No proof kernel
1B1r1QR1/p3ppp1/P2nBN2/R5Pp/2q1PN1Q/br3K1p/n1B1P2b/5B1k w - - 0 3 illegal: Other
1R4q1/1p3k1q/2N4q/Rp2P2R/K2B1bQ1/P1p1PQ1r/4N2P/Q1r3bN w - - 0 1 legal: proof: c4 e5 b4 d5 g4 h5 gxh5 e4 f4 d4 b5 Ne7 d3 Be6 dxe4 Bd5 cxd5 Nec6 b6 Ne5 fxe5 a6 Kf2 Nc6 Ke1 Na7 bxa7 Bc5 Qb3 Ba3 Qd1 Bf8 Kd2 f5 Kc2 g5 Kb3 c5 e6 c4+ Ka4 d3 h6 f4 e7 f3 e3 d2 h7 g4 d6 f2 d7+ Kf7 e8Q+ Kg7 Ne2 g3 Bb2+ Qf6 d8N g2 Qf7+ Kh6 Rg1 Qf4 Nc6 Rb8 a8R Rc8 Ng3 Bd6 Nh1 Bc7 Qd5 Kg6 Bd4 Qh6 Rb8 Bf4 Nc3 Rc7 Qg5+ Kf7 Qf3 Rcc8 Be2 f1Q Qgg4 Qb1 Bd3 Rc7 Ne2 Rcc8 Rc1 g1B Rc3 d1Q+ Rb3 Qd2 Rb5 Qde1 Re5 Qg3 Rh5 Rhd8 h8Q Qg2 Qe5 Rh8 Qa5 Rc7 e5 Rh7 Qc8 Qg8 Qcg4 Rh8 Bh7 Qbg6 Qc3 Qg6g7 Bd3 Q7h7 Qb2 c3 Bb5 Rd7 a3 Rd5 Rb1 Rd7 Qa1 Rd8 Ba7 Rd1 Bd4 Rc1 Rb4 Q7g7 Rc4 Q7h7 Rc5 Q6g7 Bd3 Qhg6 Rg5 Rh3 Ra5 Q7h6 Rh5 Qg6h7 Bb5 axb5+
5Q1q/1q2PQ1r/3KBR2/Rq4r1/bn2pb2/BNr1QP2/3q2PP/1RBk4 w - - 0 1 illegal: No possible last move
bn4n1/1QpQK3/3RnBr1/1r1Nqq1P/1Q4PP/1BB4k/P1R5/r2R1r2 w - - 0 1 legal: proof: d4 e5 g4 g5 b4 h5 gxh5 a5 bxa5 g4 c4 g3 c5 g2 d5 d6 Nd2 Bh6 Nb3 Bf4 cxd6 Bg3 Nd4 exd4 fxg3 Bd7 Bd2 Bg4 Bc1 Bc8 Kf2 Kd7 Kf3 b5 Ke4 f5+ Ke5 b4 h4 d3 e4 d2 g4 b3 a6 b2 a7 b1R Bb2 f4 Qe1 d1N Rh2 f3 Bc4 f2 Ne2 f1Q Bc3 g1R Nf4 Ne3 Rc2 Ng2 Bb3 Nh6 Qd2 Re1 Rd1 Qe8+ Kf6 Rg8 e5 Bb7 Qd4 Qf2 Qb4 Ref1 e6+ Kc8 e7 Rg6+ Ke5 Qb5 e8R+ Kd7 Re6 Qfc5 Rdd2 Ra1 Rd1 Rf1 Rf6 Ne3 Re6 Nef5 Rf6 Nd4 Re6 Kd8 d7 Qa5 Ra6 Ke7 Rd6 Ne6 d8B+ Kf7 Bf6 Qf2 Ng2 Qe1+ Ne3 Qg3+ Ke4 Qe5+ Kd3 Qg5 Kc4 Nf4 Rd8 Qf5 d6 Ke6 d7 Bc6 Rh8 Bh1 d8Q Bg2 Qd2 Be4 Rd8 Bc6 Be7 Be4 Rd4 Ke5 Bd8 Bf3 Rd3+ Ke4 Bdf6 Qae5 Rd5 Bg2 Kc5+ Kf3 Qdd4 Nd7+ Kc6 Rb8 a8Q Rb5 Qc8 Kg3 Qa7 Rf3 Rd6 Ne6 Qe8 Kh3 Qab8 Ndc5 Qed8 Na6 Kd7 Rf4 Ke7 Ba8 Qb7 Rf1 Qd7 Nb8 Nd5 Ng8+
BNQQ3N/1b5R/1Q1K1r1P/1b5P/k1P2r2/2q3pp/1Rn1RNPq/1r1b4 w - - 0 1 illegal: No proof kernel
n1BKQ1b1/1b4Nk/Qb2pr2/1PN1BP2/R4PbP/1pb4Q/3N2r1/1q3B2 w - - 0 1 illegal: No proof kernel
q3Bn2/1R5Q/1Rb1kbP1/1KpNn3/p1Q1b3/P1Nn3N/2P1P2Q/1Rn2n2 w - - 1 2 illegal: No possible last move, all moves rejected
1N1nn3/2r1pb2/P1N1QPN1/1R4K1/1qRb1Pp1/1k4PQ/1p3B2/R2r1b1Q w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 h4 f5 exf5 c6 c4 g4 cxd5 Qc7 Bc4 Qf4 Bb5 Qg5 hxg5 cxb5 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 a4 Kb4 d4 h5 f6 h4 d6 h3 g6 b6 d7 h2 d8Q Nd7 g3 Ra6 g7 Ra7 d5 Rh4 d6 Nh6 g8Q Nf7 a6 Bb7 a5 Be4 Nf3 Nde5 d7 Bd3 Nd4 Nc4 Be3 Ncd6 Nd2 Rc7 a7 Ne8 a8R Bf1 a6 Bh6+ Kf5 Bf4 N2f3 Be5 Rb8 Rh3 Qc8 Nd8 Kg5 Rh4 Rg1 h1B Qh7 Rh3 Nh4 Bd5 f4 Rh1 Rb7 Bf7 Bf2 Kc3 Qdb1 b4 Ng6 b3 Qh3 b2 Nc6 b5 Nb8 b4 Rb5 b3 Ra4 Bd4 Rc4+ Kd2 Qe4 b1Q Qe6 b2 Qb7 Qe1 Qbg2 Kd1 Qa8 Qb4 Qad5 Nb7 d8N Kd2 Ndc6 Nd8 Rc1 Kd3 Ra1 Kc2 Ra4 Bc4 Rga1 Rd1 Qf3 Bf1 Qfh1 Qd2 Rc4+ Qc3 Rba5 Kb3 Rb5+ Qb4
b6q/rqKp1Q2/1pQ1BPQR/2q4N/1PN2N2/PPkr1p2/1R6/3R1b1n w - - 0 1 illegal: No possible last move, all moves rejected
7k/QN1n2np/8/RbQ2N1p/1p5K/qPp3P1/PRppr1BP/RQ3N2 w - - 0 2 illegal: Other
kB2b1r1/1qQR1N1p/n2q1P2/1P2n3/n1Pr1N2/KR1r1Nb1/3b3P/Q2Q2R1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f4 Kf7 f6 g6 Bd3 Ke6 f7 Kf6 f5 Ke5 f6 Ke6 Bf5+ gxf5 Kd2 Kd5 g4 a5 b4 e5 b6 Kc6 Kc3 Kb7 Kb3 d5 c4 e4 g5 d4 b5 e3 g6 e2 g7 e1B Nf3 a4+ Ka3 d3 Ne5 f4 Nc6 d2 Qb3 d1N Nb4 f3 Nc6 f2 Rg1 f1Q Bf4 Bd2 Ne5 Bd6 f8N Qf3 Ne6 Nc3 Nf7 Na6 Qd1 Nh6 g8R Ng4 Rg7 Rg8 Be5 Qf8 Nf4 Bd7 Rg3 Kb8 b7 Be8 Rg1 Qe4 Ra2 Bc7 Rb2 Qd6 Rb4 Ka7 c6 Bb8 c7 Qec6 Kb2 a3+ Kb3 a2 c8Q a1R Qc7 Ra5 Kb2 Qcd7 Rb3 Ra3 Qa5 Bc7 Qa4 Rd8 Qa5 Be3 Nd2 Q7e7 Nf3 Bd2 Ne6 Kb8 Bg3 Ne5 Nf4 Nd5 Qc3 Nb6 Qcc1 Qed7 Qa1 Ka7 N7g5 Q7c6 Rd7 Qcd5 Nf7 Kb8 Rb4 Rd3 Rb3 Rd4 Ka2 Ka7 Kb2 Na4+ Ka2 Kb6 b8Q+ Qb7 Qc8 Bb8 Qc7+ Ka7 Bf2 Ka8 Be3 Rd3 Bc5 Ba7 Ka3 Bb6 Bb4 Bf2 Bc5 Bg3 Bb4 Qdb6 Bc5 Q6c6 Ba7 Qd5 Bb8 Qdc6 Re7 R8d4 Rd7 Qd6+
r1B3rR/3b1K1P/4PN2/Q1B3pr/1rP2b2/QB5b/r3k1Pn/1Q1n1NqN w - - 0 1 illegal: No proof kernel
Rqb1n1R1/NQnn3P/Pp1Q2nP/2NB2N1/RP3n2/b1K3rQ/8/5nkr w - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Kf7 Bb2 axb2 Qc2 Ke8 Qc1 Qd7 Qd1 Qd8 d4 Kd7 Kd2 Kd6 h4 g5 f4 e5 a4 c5 f6 c4 f5 e4 b4 g4 f7 b6 h6 g3 h7 g2 h5 e3+ Kc3 e2 a5 e1N a6 Bg7 f8N Nf3 Nd7 Nf6 Qb3 Ne5 Na3 Ne8 Nf3 g1N Ng5 Ng6 Bg2 Nh3 Rhg1 Nhf4 Nc5 Nd7 Ra2 Ne6 Nb5+ Ke7 d6+ Kf6 d5 Ke5 Bf3 N6c7 Ra4 Rg8 Be4 Kf4+ f6 Ke3 h6 Kf2 Na7 b1N+ Kc2 c3 f7 Nd2 f8Q+ Bf6 Qe7 Nf1 Kd3 c2 Qg7 Nge5+ Kc3 c1N Rg4 Ncd3 Bg2 Nf8 d7 Nfg6 d6 Kg1 Qgf7 Bh8 Qf3 Rf8 Qb7 Rf2 Qe6 Ndf4 Bd5+ Rg2 Rg3 Bf6 Qh3 Bg7 Rd3 Rh2 Rd2 Rh1 Rh2 Qf6 d8Q Qf8 d7 Rb8 Qf6 Qg8 d8R Nd7 Kb3 Qf8 Qd6 Bb2 Kc2 Ba3 Kc3 Qg8 Rd2 Ra8 Rd3 Rb8 Rg3+ Kf2 Qf8 Nef6 Qe8 Ne7 Qa8 Bb7 Nge6 Qh8 Qg6 Qe8 Bg2 Kg1 Qd3 Rc8 Qd6 Qg8 Rf8 Re8 Rg7 Neg6 Ng5 Re7 Bd5 Re3+ Kd4 Rf3 Rd8 Qe8 Rg8 Rg3 Rc8 Qd8 Kc4 Nfe8 Rb8 Bc8 Qac6 Bb7 Ra8 Qb8 Kd4 Rg2 Kc3 Bc8 Qb7 Rg3+
1q1N1b2/1PQPp3/R3P3/1N1R3K/4QQ1p/Bbrnnr1P/4r1n1/3kNR1q w - - 0 2 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 b4 a6 e3 Be6 b6 Qd7 b7 Bh3 b5 Qd8 b6 Bc8 Bb5+ axb5 Kf2 Kd7 Kg3 Kd6 Kh4 Kc5 d4+ Kc4 g4 f5 g6 h5 d6 c5 h3 b4 e4 b3 e5 f4 d7 f3 g7 b2 g5 f2 g6 f1N d5 Na6 b8R Nb4 b7 Nd3 d6 Ra2 Nf3 Nh6 Qd2 Kb3 g8Q+ c4 g7 Ne3 Ne1 Nhg4 Na3 b1Q Qh7 c3 Qe4 c2 Rf1 Ng2+ Kg5 h4 e6 N4e3 g8Q Rh7 Qf2 Rf7 Kh5 Rf3 Qgg3 Qc7 d8N Bd7 Qh2 Ba4 Nb5 Qc8 Ra8 Qb8 Ba3 c1R d7 Rc3 Qc7 Re2 Ra6 Qd1 Rd6 Qb1 Rd5 Qd1 Bb4 Kb2 Qfg3 Bb3 Ra6 Kc1 Ba3+ Kd2 Qh2 Qc1 Qhd6 Kd1 Qdf4 Qd2 Nc2+ Qe1 Rf2 Qg1 Ne1 Qh2 Rf1 Qh1
5Q2/Q1KrNnbn/R5qp/R1Br4/p4BP1/Pb3BRP/2P1b2Q/1q1k2r1 w - - 0 2 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 Ke7 e4 Ke8 exf5 g5 f4 Qc7 f6 Qd8 f5 Qe7 Nc3 Qd8 Nce2 Qb6 Nf4 gxf4 Ne2 Qc7 Ng1 Qd8 Ke2 Kf7 Kf3 a5 Ke4 d5+ Kd4 b5 g4 b4 c6 a4 a3 b3 c7 f3 Bg2 b2 Ne2 b1Q Nf4 f2 Ng6 f1B Bf4 h6 Ne7 Bg7 Kc5 d4 Qe2 d3 Bf3 Qe8 Kd6 Be6 c8R d2 Rc6 d1R+ Kc7 Bb3 Ra6 Nd7 h3 Rb8 Qh2 Rd5 Rg1 Rh7 Rg3 Be2 Ra2 Rb4 Rb2 Rbd4 Ra5 Rd1 Ra6 Rg1 e6+ Kf8 Ra5 Qg6 f7 Ngf6 Ra6 Ne5 Ra5 Ba2 Rb6 Bac4 Rba6 Bb3 Nc6 Bh8 e7+ Kg7 f8B+ Kf7 Qf2 Rg7 Qg2 Nh7 e8Q+ Kf6+ Qd7 Re7 Qf2 Bg7 Qh2 Rf7 Bc5 Re7 Kc8 Nf7 Qa7 Red7 Ne7+ R5d6 Be5+ Kg5 f6 Rd3 Bb8 R7d5 Kc7 Kf4 Qb7 R3d4 Qa8 Ke3 Qa7 Ne5 f7 Kd2 f8Q Kd1 Kb7 Nf7 Bf4 Rd7+ Kc8 R4d5 Kb8 R7d6 Kc7 Rd7+
1r4Q1/n3nK1N/kPpbrp2/B7/BQP1Q2P/R2rRbqP/1RB5/r4b2 w - - 0 1 illegal: No proof kernel
n2B2N1/1b1p1Q2/k1N1b3/2RRP2r/n1q1PKrQ/N1b1rP2/3Pp2Q/2r3R1 w - - 0 1 illegal: No proof kernel
1QB5/2RPQKq1/N2brQr1/1R1B3k/8/Pqpnp2b/PnP1R2B/2n4n w - - 0 1 legal: proof: f4 g5 e4 d5 exd5 a5 Nf3 a4 Ng1 a3 bxa3 Ra7 Kf2 Ra6 Ke1 Ra8 fxg5 h5 g4 Ra5 g6 Ra4 g5 Ra8 Nc3 Qd7 Ne4 Qd6 Nf2 Qd8 Ng4 hxg4 Kf2 e5 Kg3 f5 h4 c5 d4 b5 g7 Kf7 d6 Kg6 d7 b4 d5 c4 d6 c3 Bf4 e4 Nf3 b3 Nd4 b2 Qb1 e3 Nc6 Qc7 d8Q Ra6 Nb4 Kh5 g6 Nd7 Qe7 Ne5 Rh2 Nd3 Re2 Nh6 g8R Nf7 g7 Nfe5 Bh3 Rh6 Qf1 Rg6 Rb1 Rb6 Na6 Nc4 Qf3 Qa7 Qfb7 Be6 Qf6 Be7 Rc8 Rc6 g8B Bf8 Qa8 Qg7 Rc7 Be7 Qa7 Rb6 Kg2 g3 Kf3 g2 Bh2 f4 Ke4 g1N Kd4 Bd7 Kd5 f3 Qb8 Bf8 Qe7 f2 Bf5 f1N Bg4+ Kh6 h5 Ng3 Bf7 Nh1 Bh3 Bb5 Bc8 Bd7 Bg8 Bf5 d7 Bh3 Bf7 Rbf6 Be6 Kg5 h6 Kh5 Bf7 Re6 h7 Nf3 Bg8 Nfe1 Bf7 Nc1 h8Q+ Qh6 Qhf6 Ned3 Ra1 b1Q Bg8 Qb3 Rb1 Qa4 Rb5 Ncb2 Bf7 Qg7 Bg8 Re5+ Kd6 Qb3 Bf7 Rg5 Bd5 Rg4 Ke6 Rh6 Qd8 Bd6 Qe7 Qh8 Qg7 Rgg6+ Kf7 Qh7 Qe7 Re6 Qf6 Rg6 Qe7 Qh6 Qgf6 Qg7+
4n1bn/bp1Pq2K/1B5Q/2Q5/1R1rpP1N/1P3Prq/Bn1kNQn1/B3N3 w - - 0 1 legal: proof: g4 h5 c4 f5 e3 d5 cxd5 f4 exf4 Qd6 Nh3 Qd7 Ng1 Qd8 gxh5 a5 b3 a4 Nc3 a3 Rb1 Rh7 Rb2 axb2 a4 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 b1Q+ Bd3 g5 h4 e5 h6 c5 h7 c4 d6 g4 h5 g3 h6 g2 a5 Kg6 d7 Qf6 d8B Bc5 a6 Nd7 a7 Ne7 Qe2 Rg8 Nf3 g1N h8Q Nh3 Bb2 Qf1 h7 Kh6 Qe1 Rg3 Bb1 Ng6 Bb6 Qe7 Ne2 c3 Kf5 c2 Ba1 c1N Ba2 Nd3 Qc1 Qg2 Ne1 Nb2 Rg1 Rb8 a8Q e4 Qa7 Be3 Qc5 Kh5 Qf6 Nh8 Qe6 Nf6 d4 Ne8 d5 Ng5 d6 Nf3 Rf1 Bd7 Rg1 Rd8 Rf1 Bc6 Rg1 Bd5 d7 Rc8 Qed6 Bf7 Qf6 Rc6 Qg7 Rd6 Qf6 Ng6 h8N Rd4 Qfd6 Nh2 Qe6 Ng4 f3 Kh4 Qec6 Bf2 Qf6+ Kh3 Kg5 Ne3+ Kh6 Qh2 Kh7 Ng2 Nd3 Qh1 Rc1 Kh2 Ne1 Qf1 Nc3 Kg1 Qfc6 Be3 Ne2+ Kf2 Rc4 Qh1+ Qh5 Qh2 Qh6 Qh3 Rb4 Kf1 Qc2 Bg1 Qa3 Kf2 Qc5 Ke3 Qa6 Kd2 Qa7 Ne5 Ng6 Bf2 Nh4 Ng6 Ng1 Nh8 Ne2 Be3 Qd5 Bf2 Bc7 Rd3 Bd8 Bb6 Qd4 Bc5 Qf2 Rd4 Qa5 Bb6 Qc5 Ba7 Bb6 Bg8+
nrkq2n1/p7/2Pp3b/2Qn2RR/b2BB1R1/PPbQbNb1/Q1BP4/2K5 w - - 0 1 illegal: No proof kernel
1qQ1qNBq/3qB2Q/P2p4/3qR1N1/P1NQ1nBr/K2P2p1/6P1/2b1rkn1 w - - 0 1 legal: proof: e4 a5 a4 f5 exf5 g5 h3 g4 b3 b6 Nf3 g3 Ng1 Ba6 b4 Be2 bxa5 Bg4 hxg4 c5 Ra3 Kf7 Rb3 Ke8 Rb4 cxb4 c4 Kf7 f4 Kf6 c5 e5 c6 h5 c7 h4 c8B b5 a6 e4 d3 h3 Kd2 h2 Kc2 e3 Kb3 e2 Ka2 e1Q Qc2 b3+ Kb2 d6 Na3 b4 Qc6 Rh4 Qc7 Qee8 Be6 Qdd7 Qc5 Bh6 Nc4 Nc6 Nh3 Nge7 Bg8 Nd5 Ng5 Nd4 Be2 Nf3 Re1 h1Q Bd1 Qh3 Re5 Ng1 Qd4 Rc8 Nb6 Rc3 Nc4 Qh2 Bd2 Rc1 Be2 Re1 Bf3 Kg7 f6+ Kg6 f7 Kf6 f5 Nf4 f8N Qh3 Bd1 Qh1 Ka1 b2+ Ka2 b3+ Ka3 b1Q Ba5 b2 Bd8+ Kg7 Bf3 Qd1 Be7 b1Q Be2 Qbb8 Bf3 Qdb1 Be2 Q1b5 f6+ Kh8 f7 Kg7 Ne4 Qbc6 g5 Qd5 g6 Bg5 Bd1 Kh6 g7 Qhh3 Ned2 Qh1 Nf3 Kh5 Be2 Kg4 Bd1 Bh6 Ng5+ Nf3 Bf6 Qde7 Qa7 Rh3 Ne4 Ne6 Nd7 Qbc8 Qd4 Kf4 Bh7 Qb8 g8Q Ng1 Qg6 Rh5 Bg8 Qh3 Bh4 Qf6 Bf3 Qh8 Be7 Rh4 Qh7 Qg4 Qc5 Qf5 Bg4 Bg5 Qc8 Bh6 f8Q Bg5 Ncb6 Ke3 Qfh6 Bf4 Nf8 Bg5 Q6g6 Bf4 Ng5+ Kf2 Nc4 Kf1 Qc5 Be3 Qd4 Nf4 Qe6 Bd2 Qc8 Qfd7 Qf5 Be3 Qh7 Bc1+
1qR1QQ2/3nq1P1/2pk1N2/R2bp2P/1b3N2/4Rnq1/Q1PNPr2/3KqB1q w - - 0 1 illegal: No possible last move
1knQ2r1/pp4B1/rP2NN1K/rR2Pb2/8/Pbp1b3/RNP1QQq1/n1R5 w - - 0 3 legal: proof: e4 f5 exf5 g5 d4 e5 dxe5 Kf7 f4 Ke8 g4 h5 Bh3 Be7 fxg5 Rh6 g6 Bf8 g5 Rh8 Bg4 hxg4 Ke2 c5 Ke3 d5 Kf4 Kd7 b4 Kc7 h4 g3 h5 d4 a3 c4 b5 c3 b6+ Kc6 f6 d3 h6 g2 h7 d2 f7 Qd6 g7 Kd7 g6 Nc6 Kg5 Nge7 g8N Na5 g7 Qd5 Ra2 Nb3 Ne2 g1R+ Kh6 Rg4 Nf4 Na1 Ne6 Ra4 Qe2 d1B Nd2 Ra6 Nc4 Qg2 Nb2 Ra5 Bg5 Ra6 Bf6 Rb8 Qf2 Be2 Rb1 Bc4 Qe2 Bb3 Rc1 Nd5 Rb1 Bc5 f8Q Bf2 Qc5 Ne7 Qce3 Ra5 Qg3 Bd4 Qgf2 Bc5 Bg5 Be3 Nf6+ Kc6 g8R Ra6 Rg6 Rd8 h8Q Rd5 Qf8 Rda5 Qd8 Bd7 Bf4 Nc8 Rc1 Ra8 Rg4 Rb8 Bg5 Ra8 Rb4 Rb8 Nf4 Bf5 Rb5 Ra8 Ng4 Rb8 Bf6 Ra8 Bg7 Rb8 Qg8 Kd7 Nf6+ Kc6 Rg1 Nd6 Ne8 Kd7 Rc1 Rd8 Qf8 Kc8 Nf6 Kb8 Qe7 Rg8 Qf8+ Nc8 Qd8 Bd4 Ne6 Be3+
N2Q2Kr/2B1N3/RQ3p1R/PrR4b/2p1QP2/1N1nP1k1/P1p2b1q/5nbr w - - 0 1 illegal: No proof kernel
R2q3n/QR2rqQP/bNkN4/1p4p1/rPN5/bPQ1n2K/p3rP2/1B1R4 w - - 0 1 illegal: No proof kernel
k1B5/1q3QPp/P2RrQnN/3K4/pnP4P/pqR1Rrb1/2B1bB2/r4Q2 w - - 0 1 illegal: No proof kernel
1n2Qr2/pK2BB2/1q1R1Rq1/1P3pb1/P4QP1/1Nb1Q1pr/R4P2/b2B2nk w - - 0 2 illegal: No proof kernel
rR6/2nqQq2/B3p1B1/Q1p1B2n/1PQP1b2/r2pR3/PkPq1R2/3b1KN1 w - - 0 1 illegal: No proof kernel
3r1Q1N/1R2r2k/1B4p1/ppnrN1Q1/2R1qPRb/P1Pb3P/4r3/Q2NK2n w - - 0 1 illegal: No possible last move, all moves rejected
QBQ1b1q1/R4B2/nP3q2/r3p2p/2B1Pp1N/Kn1r4/n1P1kP1Q/RR3r2 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 h4 Bb7 h5 Ba6 Nd2 Ng8 Ndf3 Bc8 g4 Bb7 h6 Bc6 Nh4 gxh4 g5 Nf6 g6 Nd5 g7 Bb7 g8B Bg7 hxg7 Nf6 Ra5 Ba6 Ra1 Bc8 Kd2 e5 Kc3 Ke7 Kb4 Ke6 b6 Kf5 e3 Ke4 b3 a5+ Ka3 h5 b7 d5 b4 a4 c6 h3 c7 h2 b5 d4 b6 d3 Qd2 Nd5 Qe2 f5 Nf3 f4 Rg1 h1R Rg4 d2 Nh4 d1Q Rb1 Qf6 Bf7 Nb4 g8Q N8a6 b8R Qd5 Qd1 Bd7 c8Q Na2 Rg1 Be8 Bc4 Rh7 Re1 Rf1 Rb7 Rg7 Qh8 Rg3 Ra7 Qde6 Qdd8 Qg4 Bd2 Qg8 Bb4 Rf3 Bd6 Rg3 Nf5 Kf3 e4 Rh3 Bb8 Rg3 Kb2 a3+ Kb3 Rh3 Qg7 Rg3 Red1 Rh3 Qg1 Rg3 Qh2 Rh3 Rd3+ Ke2 Nh4 Re3 Rc3+ Rd3 Ra1 N2b4 Rb1 a2 Ka3 a1N Qd5 Nb3 Ra1 Nbc5 Rb3 Na2 Qdd8 Nc3 Rbb1 Nb3 Qd5 Na2 Bc7 Rb8 Qa8 Rb7 Bb8 Rd7 Kb2 Rd5 Ka3 Ra5+
3BRQrQ/r1q1pR2/R1BP1nQp/1N2bp2/qK2b1PP/3bP3/8/Bk1q4 w - - 0 1 legal: proof: f4 d5 g4 b5 c4 b4 cxd5 b3 Nc3 Na6 Ne4 Nc5 Nf6+ gxf6 axb3 f5 b4 Ne4 b5 Ng5 fxg5 Bd7 Nf3 Be6 Ng1 Bc8 d4 Kd7 Kd2 Kd6 Kc3 a5 b4 c5 h4 a4 e3 a3 g6 a2 g7 h6 b6 f6 b7 c4 b8R f4 b5 f3 b6 f2 b7 Be6 Nf3 Qb6 Qd3 Bf5 Bb2 Be4 Re8 Ra7 b8Q+ Qc7 Bg2 f1B Kb4 c3 Rg1 Be2 Rgf1 c2 Bh1 c1Q Qa8 Bh7 Qg6 Qd1 Qc8 Bd3 Qb8 Kd7 d6 Kc6 d7 Kd5 d8B Be4 Rc1 a1Q Rc6 Qa6 Ba1 Qa2 Ra6 Qac2 Ka3 Kc4 d5 Kd3 d6 Q2c6 Qc8 Kc2 Nd4+ Kb1 Nb5 Q6d7 Kb4 Bd3 Qh5 Qdc6 Bd5 Bhe4 Qg6 Qc2 Bc6 Qa2 Rf5 Qac2 Rg5 f5 Qb8 Nf6 g8Q Bg7 Qf8 Qc4+ Ka3 Bf3 Qb7 Bg2 Qh7 Nd7 Nd4+ Qb6 Qhg8 Bf6 Rg7 Bd5 Rf7 B5e4 Qh7 Qcb5 Qg6 Qc7 Qb6 Rg8 Qa5 Qe5 Nb5 Qd4 Qc3 Qc4 Qe5 Bh8 Qeg7 Qd4 Q7h7 Be5 Qhg7 Qc4 Qh8 Qcc2 Kb4 Nf6 Bc3 Qa2 Ba1 Qaa4+
R1n1B3/Q3Qp1b/Kpr5/1qPN1P1N/1B2p1Bp/PN1r2r1/1bk1P3/3n2Q1 w - - 1 2 legal: proof: d4 c5 dxc5 g5 b4 a5 bxa5 Nf6 h4 Ng8 hxg5 Qb6 Bd2 Qc7 Bc1 Qd8 Kd2 e5 Kd3 Ke7 Kc4 Ke6 Kb5 Kf5 g4+ Ke4 f4 h5 c4 d5 f5 d4 a6 h4 g6 d3 g5 b6 g7 d2 c6 Nd7 c7 Ne7 g8Q Nc6 c5 Ncb8 a7 Bb7 c8B Bg7 g6 Bf6 g7 Kd4 Qe8 Nc6 g8N Rh6 Bh3 Ne7 Bg4 Bf3 Ka6 e4 Ba3 Ne5 Nc3 Nc4 Bd7 Nc8 Bb4 Ne3 Qe7 Qe8 Qe1 d1R Nd5 Rd3 Qc1 Qd8 Be8 Nd1 Rh3 Rb8 a8Q Bh8 Qcg5 Rc6 Qaa7 Qd6 Rg3 Qe6 Ngf6 Kc4 a3 Kb3 Nh5 Kc2 Rb1 Bb2 Qe3 Bh1 Nf3 Ra8 Nd2 Bf3 Qg1 Rb8 Nhf4 Ra8 Bh3 Bh5 Bg4 Bg6 Nh5 Bh7 Nb3 Rb8 Bh3 Ra8 Rg8 Rb8 Bg4 Rg3 Ndf4 Rb7 Rh8 Rd7 Rf8 Rd2 Nd5 Rdd3 Bd7 Nd6 Ra8 Nc8 Be8 Qd7 Nc3 Qd4 Nd5 Qc4+ Kb7 Bd4 Be1 Rh6 Nc1 Rgf3 Rb5 Bb2 Nb3 Rc6 Ka6 Rg3 Bb4 Qxb5+
1Q2KNQ1/8/1p5p/R1pbnNq1/R2p2Rr/N1qnPPr1/1PQb3P/2B1k3 w - - 0 2 legal: proof: c4 f5 g4 d5 gxf5 b6 cxd5 Na6 a4 Qd6 a5 Nb8 a6 Bd7 Qc2 Be6 Qd1 Bc8 d4 e6 Bg2 Qg3 d6 Qe3 d5 Qh6 d7+ Kf7 d6 Qf4 Bf3 Qe4 Bg2 Qc6 Bd5 Qb7 axb7 exd5 Kd2 Kf6 Ke3 Kg5 Kd4+ Kg4 Ke5 c5 Ke6 g5 Kf7 a5 d8R d4 d7 a4 f6 a3 Qe1 a2 Ke8 Ra3 f7 Nh6 Be3 Nc6 b8N Nb4 Nf3 Nd3 Qc3 Bb7 Rf1 Bd5 Rg1+ Kh3 Rc8 g4 d8Q g3 Nh4 g2 Nf5 Ng4 Bc1 Bh6+ f8Q Ne5 Qc2 Bd2 Nd7 Rb3 Ra8 Rc3 Rd1 g1Q Na3 Qg5 Ra4 Kg2 Qg8 Rb3 Qb8 Rc3 Rb1 a1Q Nf8 Qa2 Ra1 Qc4 Re1 Rb3 Rf1 Qc3 Rd1 Be3 Rd2 Kf1 Ra2 Ke1 Ra5 Nf4 Rd3 Bd2 Rg3 Nfd3 Rg4 Rb5 Ra4 Ra5 Ra1 Ra7 e3 Rf7 Nh6 Rf3 Nf5 Rh3 f3 h6 Nc4 Rh4 Ra5 Rh7 R1a4 Rg7 Na3 Qf6 Rf4 Rg3 Rg4 Qg5
3R3q/5kP1/rp6/5P2/1N1n1Krp/RPp2Bp1/q1PQQn1Q/1N1NRr1b w - - 0 1 legal: proof: d4 e5 dxe5 g5 g4 a5 b3 f5 Bb2 a4 h3 a3 gxf5 axb2 h4 g4 Nc3 Be7 Nb1 Bg5 hxg5 Ra4 Na3 Ra6 Nb1 Ra8 Kd2 h5 Ke3 c5 f4 d5 a4 c4 a5 h4 a6 c3 e6 b6 g6 g3 a7 Bd7 g7 Rh5 e7 Na6 f6 Rf5 Ra3 Rh5 f5 d4+ Kf4 d3 e4 d2 e5 Bc6 f7+ Kd7 e8Q+ Kc7 f8R Bf3 e6 Kd6 e7 Nc7 Be2 Nb5 Nh3 Nf6 Re1 Ne4 Nf2 Bh1 Bf3 Nd4 Qe2 d1Q Qd2 Rg5 Qh5 Qe2 e8Q Qa6 Nd1 Nf2 Qee2 Qa5 Qg4 Qa6 Qh3 Rg4+ Ke3 Ke7 Qh2 Qdc8 Rg8 Kf7 Rd8 Rb8 a8N Qa5 Rd6 Qh8 Nc7 Ra8 Rd8 Ra6 Nd5 Qa4 Ra1 Qa2 Nb4 Rg5 Na3 b1R Kf4 Rc1 Nb1 Rg4+ Ke5 Rg5 Rf1 Nc6+ Kf4 Qb2 Ne3 Nd4 Ra5 Re1 Ra3 Qa2 Nd1 Ne4 Rf2 Rg1 Rf1 Nf2 Re1 Rf1 Bb7 Rg6 Bf3 Rg4+
2rb1Q1K/R4ppR/pBP1NN2/1b2RPPn/2N1r1Pb/p3Q3/2n2Qr1/7k w - - 0 1 illegal: No proof kernel
8/BP3Qp1/pp2p3/NK1pRbBB/3NQ1r1/1Qq5/1P1nPPNk/2b2rr1 w - - 0 1 illegal: No possible last move
8/1RRn1rb1/K2nB3/rrR1P2r/R2P2r1/2NQ1q2/NPP2q1k/3NR1b1 w - - 0 1 illegal: No possible last move
7k/RbKPb1bb/5P2/BPrBq1B1/q3nrNB/1P3N2/1N1rQ1B1/5b2 w - - 0 1 illegal: No possible last move
1n3rq1/RKP5/3bn2B/R5rk/B7/P1BNRn1B/q1Pn1P1n/Qq2B3 w - - 0 1 legal: proof: e4 f5 exf5 a5 d4 c5 dxc5 a4 g4 a3 f6 h6 Nd2 b6 Ndf3 Bb7 Ng5 hxg5 bxa3 Bf3 a4 Be4 a5 Bf5 gxf5 g4 Kd2 Kf7 Kd3 e5 Kc4 d5+ Kb5 g5 h4 d4 a6 g3 c6 g4 a3 g2 h5 g3 a7 d3 c7 d2 h6 e4 h7 e3 Qe2 d1Q Rh2 Nh6 Rh5 Rg8 h8B Bd6 Bd2 Ng4 Nf3 g1Q Ne1 g2 Nd3 Rg5 Qe1 e2 Rb1 Qc8 Rb3 Qb1 Bc3 Qb2 Qa1 Nh2 Be1 Qg8 Bg7 Qh1 Bh6 g1N Bh3 Ngf3 Bg7 Nd7 Kc6 b5 Kb7 Rf8 a8B b4 Rc3 b3 Bh6 Ke8 f7+ Ke7 Bg7 Qa2 Be5 b2 Rb3 b1N B5c3 Re8 f8B+ Kf7 f6 Kg6 f7 Nbd2 Bh6 Nb8 f8R Nd4+ Rf3 Qf1 Re3 Ne6 Rb6 Rf8 Ra6 Qg1 Ra7 Qf1 Rh4 Qg1 Rha4 Kh5 R4a5 Qg3 Kb6 Qg4 Bc6 Qb4+ Bb5 Qbb1 Kb7 Nb3 Bed2 e1N Ba4 Nef3 Be1 Nbd2+
1N3q1q/2nQP2B/1R3P2/2k1n3/3rBB1B/RrP1n1r1/1Pq1nb2/5BRK w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 f5 d4 c5 dxc5 f4 a4 h6 axb5 Bb7 Nd2 Be4 Ndf3 Bf5 Ng5 hxg5 gxf5 g4 Kf2 Ke7 Kg2 d5 e4 a5 h4 g5 c6 d4 b6 d3 e6 Kd6 h5 a4 c3 g3 b7 f3+ Kh3 g2 Kh2 g4 f6 a3 e7 f2 e8B a2 c7 d2 c8B Kc5 e5 Na6 b8R Nc7 h6 Ra3 h7 Ne7 e6 Rb3 Rb6 Ng6 Ne2 g1R Bb7 Ne5 Bg6 Rg3 Bbe4 Bh6 e7 Qf8 Rg1 Be3 Nd4 Rg8 Qe1 d1Q h8B Qc2 Nc6 Bd4 Bf4 Be3 Ba6 f1N+ Kh1 Bf2 Nb8 Ne3 Bh7 Rg6 Bg7 Qh8 Rb1 a1Q Bf1 Qa8 Bgh6 Rg8 Bhg5 Rd8 Qd1 Rd4 Nc6 Qaf8 Bh4 Rf3 Ra1 g3 Ra3 g2+ Kh2 Rg3 Nb8 Ra4 Rh1 g1N Qd7 Ne2 Rg1 Rc4 Kh1 Rd4
1r1nr2N/Rrpb1n1k/q1n5/5R2/NN2B1NP/4PbK1/bNP1P3/Q6R w - - 0 1 legal: proof: b4 b5 d4 a5 a4 h5 g4 e5 gxh5 Ne7 dxe5 Ng8 Ba3 Qg5 axb5 Bd6 b6 Bc5 b5 Qd8 Bb4 Be3 fxe3 axb4 Kf2 Kf8 h4 f5 h6 d5 b7 g5 h7 Kg7 b6 g4 e6 f4 e7 f3 e8R b3 Rf8 g3+ Ke1 d4 Qd2 f2+ Kd1 d3 Nc3 b2 Nh3 b1B Ra2 g2 Na4 g1N Nf4 Nf3 Bg2 f1B Rf5 Ne7 Qe1 Ne5 Be4 Nbc6 b8N Nf7 b7 Bg2 Nd7 Bf3 b8N Re8 h8N Kh7 Na6 Rb8 Ne5 Bd7 Nb4 Qc8 Ng4 Qa6 Qf1 Ncd8 Ke1 d2+ Kf2 d1R Nfd3 Rc1 Ndb2 Nec6 Kg3 Rd1 Ra3 Ba2 Qe1 Rd3 Qa1 Rb3 Nc3 Qb6 Ra7 Qa5 Nca4 Qa6 N4d3 R3b5 Nb4 R5b7
B4r1n/3r2QN/1P1b4/1P1Bbp2/q1b2N1P/n3B3/1k1B1bPp/1BR2N1K w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 fxe5 g5 h4 g4 b4 h5 Qc2 Ne7 Ra3 Ng8 Rah3 gxh3 Qf5 Be7 Qxh5 Bc5 Qh7 Bf8 Kf2 Ke7 d4 a5 e4 c5 e6 Kd6 e5+ Kc7 d6+ Kb6 d5 f5 d7 c4 e7 c3 e8B a4 e6 c2 e7 a3 d6 a2 Nd2 a1B Qg7 Nc6 Bd3 Ra2 Nf1 Ba6 Bd2 c1B Ne2 Ne5 Kg1 Nc4 Nf4 Na3 Bf7 Qa8 e8B Ne7 d8N Be5 d7 Ng6 Nde6 Bfd6 Bb1 Rf8 Ng5 Nh8 Nh7 Rc2 d8B+ Rc7 Bf6 Rd7 Bg5 Bcb2 Bd5 Bbd4+ Kh2 Bf2 Bh5 Qc6 Bhf3 Qc2 Rg1 Qa4 Kh1 h2 Ba8 Bb7 Bh6 Bd5 Bg5 Bc4 Bfd5 Ka7 b6+ Ka6 Be3 Kb5 Bd2 Qd1 Be3 Ka4 b5 Kb3 Bf6 Bb2 Bc3 Qg4 Bcd2 Bbe5 Ng3 Kb2 Rc1 Qd1+ Nf1 Qa4
Qr4n1/Brp1BR2/rB5B/1kNR2b1/1Pn1Pn2/1p2PR2/b2bB1P1/3K4 w - - 0 1 illegal: No proof kernel
Q1R4R/2n1P2b/1rN2kP1/N2n1NR1/N1P2r2/2bBppr1/1PK5/2n1Nn2 w - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 c5 a4 d5 exd5 Na6 axb5 Nb8 d6 Bg7 Nh3 Bh6 Ng1 Bf8 d4 e5 f4 e4 d5 Qc7 Be3 Qe7 Bd4 Qe5 fxe5 cxd4 Kd2 f5 c4 Kf7 g4 a5 d7 h5 d8R f4 b6 e3+ Kc2 h4 d6 h3 d7 a4 b7 d3+ Kc3 d2 Nf3 h2 Kc2 a3 Nc3 a2 Na4 Ne7 Bd3 Rh3 Ne1 Nd5 Qf3 Na6 b8N d1R Nc6 Rg3 Na5 Nac7 e6+ Kg7 e7 Rb8 g6 Kf6 g7 Rb6 Rg1 h1N Qg2 Bb7 Rc8 f3 d8N Ba8 Ndc6 Bb7 Rc1 Ba8 Qh3 Bb7 Qh8 a1N+ Kb1 Nb3 Kc2 Ba8 Rb1 Nc1 g8N+ Ke6 g5 Bg7 Rg2 Bc3 Nh6 Bb7 Nf5 Ba8 Be4 Rd4 Bd3 Rf4 Qe8 Bb7 g6 Kf6 Rh2 Ba8 Rh8 Bb7 Rd8 Bc8 Ra1 Be6 Rc8 Bg8 Ra3 Bh7 Rb3 Na2 Rb5 Nc1 Ng7 Rh3 Ra8 Ng3 Qc8 Nf1 Qa6 Kg5 Rac8 Kf6 Qa8 Rg3 Rc5 Rb4 Rb5 Nb6 Rg5 Nbd5 Nf5 Rb6
1R5R/4BbKN/2PbP1RR/3bp1B1/3QR3/2np1qn1/1p2P2P/kbr2B2 w - - 0 1 legal: proof: f4 b5 b4 c5 g4 e5 d4 a5 dxc5 g5 bxa5 h5 gxh5 Be7 f5 Ra6 Nc3 Rah6 Nd5 Bf8 Nf4 Re6 fxe6 gxf4 Kf2 Ke7 Kf3 d5 Kg4 f5+ Kg5 f3 Kg6 f4 a4 d4 c4 f2 c6 Kd6 h6 Kc5 h7 Kb4 c7 Kc3 a6 f3 a5 b4 a7 b3 a8R Nc6 a6 Na7 c5 Bd7 c8R Nf6 Bf4 Kb2 Rc6 Nb5 a7 Nc3 Rb8 Nfe4 a8R Bd6 R1a7 Ng3 Kg7 Be8 Nh3 Bf7 Bg5 Qd7 Rg1 Qb7 Be7 Rc8 h8B Rc7 Qd2+ Kb1 Qf4 b2 Ng5 d3 Qd4 Rc8 Bg2+ f1B Nh7 f2 Rc7 Qf3 Ra4 Nd1 Bh3 Bg2 Rc4 Bh1 Bf1 Nc3 Rcb4 Qe3 Rd7 Bd5 Rba4 Qf3 c6 Rf8 Rdd8 Ba2 Re8 Ka1 R8a7 Nh1 Rg6 Ng3 Rc4 Bg8 Rd7 Bb1 Rdd8 Rf6 Rf8 Rf4 Rff6 Bf7 Rh6 Re4 Rfg6 Rf4 Kf8 Rh4 Bf6 Re4 Bg5 Rg4 Bh3 f1B Kg7 Bg2 Rh8 Bh1 Bf1 Re4 Qg1 Rh4 Rcb4 Rc4 Qd4 Nce4 Bf8 Qg4 Qg1 Rc1 Bfe7 Nc3 Rc4 Bd5 Re4 Qh5 Qd4 Qf3
4B2N/nPr2p2/2R2PBk/3bK1n1/1n1pp2B/1nqpP3/3P4/BQ1R1B1R w - - 1 3 legal: proof: g4 h5 gxh5 a5 a4 g5 h4 b5 b4 g4 Nc3 Bh6 Nd5 Bg5 axb5 a4 hxg5 Ra5 bxa5 c6 Bg2 cxd5 Bf1 d4 f4 Kf8 Kf2 Kg7 Kg3 e5 c4 d5 h6+ Kg6 c5 a3 c6 a2 c7 e4 b6 d3 h7 d4 e3 Be6 c8R Bb3 f5+ Kg7 Kf4 g3 a6 g2 g6 Qd7 a7 Ba4 a8B Bb5 Bc6 Qe8 b7 Qd7 Nf3 g1N Bb2 Nf6 Ke5 Rd8 Qb1 Rf8 Nh4 Bc4 h8B+ Kh6 g7 Bd5 g8B Nh3 Bh7 Ng5 Bg6 Qd8 Ba4 Qa5 Be8 Qc3 Rc6 Rg8 Qe1 Rf8 Rd1 Rg8 Ba1 Rf8 Bd7 Rc8 Be8 Rc7 Rh3 Bb3 Rh1 Nd5 Bf6 Nb4 Bh7 Nh3 Ng6 Bd5 Bh4 Ng5 f6 Nd7+ Kd6 Nb6 Nh8 Nc8+ Ke5 Na7 Bg6 Qa3 Bc3 a1N Bb2 Nb3 Ba1 Qb2 Rdc1 Qc3 Qd1 Qc5 Qc2 Nh3 Qb1 Ng5 Rd1 Qc3
B2Q4/2P1p3/BR3n2/3BbP2/brbnPNk1/4BR1b/1B1P2r1/q1R1Kbn1 w - - 0 1 illegal: No proof kernel
BNN3RB/q1k1P1B1/Kn2bN2/n4r2/1pB4P/rPb3Pn/n3B3/1Q4rr w - - 0 1 illegal: No possible last move
r4r2/1NpPPP2/2PN4/Rq1k3K/p3b2R/rR2Q1b1/2RnRNBq/nb6 w - - 0 1 illegal: No proof kernel
1qR4N/2P5/1r1n2B1/4BpB1/1Rq1qQnb/B3pP1P/2BR1Pkr/1K1b2n1 w - - 0 1 illegal: No proof kernel
BnR5/1r1b4/4PP1n/k1B3Np/1nbP1pB1/4rPQB/BbNq2n1/3K3N w - - 0 1 illegal: No proof kernel
b1B2B1k/3R1p2/2BQ4/bNr1b1Bp/1n3PP1/1K3rP1/1B2P1n1/Rbr1qR2 w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 g5 axb5 g4 h3 Qb6 hxg4 Qd8 Nc3 e6 Nd5 exd5 Rh5 d4 Rh6 Qb6 Rh1 Qd8 Kd2 h5 b4 a5 c4 d5 Kc2 d3+ Kb2 a4 f4 d2 g3 a3+ Kb3 a2 b6 d4 c6 d3 b7 Nf6 c5 Na6 b8B Bb7 c7 Nd5 c8B Ne3 c6 Qa5 b5 Bb4 b6 O-O c7 Bc3 Bg2 Nb4 Bc6 Kh8 Bb2 Ng2 Nf3 Ra6 Nd4 Ba8 b7 Rg8 Rh4 Rg5 Nb5 Rc5 Rh1 Ra7 Rf1 Ra6 Qe1 d1R Qd2 Rc1 Ba7 Rb6 b8B Rb7 Qd1 d2 Bb6 Be5 B8a7 Rb8 Ba6 Re8 c8R Rd8 Rc7 Rd3+ Nc3 Rf3 Rd7 Bc7 Bc8 Be5 Bd8 Bc7 Rb1 a1B Bg5 Bb6 Qc2 Bd8 Qd3 Bc7 Nb5+ Be5 Bd4 Bc3 Bb8 Qa1 Bd6 Qa5 Bf8 Qa1 Rb2 d1B+ Rc2 Be1 Bb2 B1c3 Qd6 Qb1 Ka3 Bd2+ Rc3 Bc2 Re3 Bg6 Kb3 Qa1 Rc3 Bb1 Re3 Na2 Rd3 Ba5 Rc3 Nb4 Rd3 Ne3 Rdd1 Ng2+ Bc3 Ba2+ Ka4 Rc2 Bb2 Qc1 Rde1 Qd2 Ra1 Bb1 B6b7 Qe1 Bc6 Rf2 Ka3 Rc1 Kb3 Rf3+
rB3N1R/q1N1q2p/1Br2N1P/4PQ2/B4n2/qpnK1B2/1P1B1Pq1/krb5 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 g4 e5 gxf5 b4 Ra3 Bb7 Rd3 Ba6 Rd4 Bb5 axb5 exd4 Kd2 Kf7 h4 a5 e4 g5 c4 d5 b6 g4 b7 d3 e5 d4 h5 g3 f6 Ke6 c6 a4 c5 Kd5 c7 Kc4 c8B g2 c6 a3 f7 a2 c7 a1Q Bd7 Na6 c8N Nc5 b8B Qa3 Ne7 Ne6 Be2 Nf4 Nh3 g1Q Ng6 Bh6 f8B Qe7 Bf3 Nf6 Ng5 N6d5 Ba4 Qg2 Rg1 Nc3 Ne6 Qa7 Be7 Rc8 Bd8 Rc6 Ngf8 Bg5 h6 Qe7 Qe2 Qa7 Bb5+ Kb3 Bb6 Ka2 Nc7 b3 Qe4 Ka1 Qf5 Qh1 Ke1 d2+ Kf1 d3 Ba4 Qh5 Rg3 Qf7 Rg2 Qfe7 Rg1 Bh4 Rg8 Bg5 Rh8 Nfe2 Kg2 d1R Nd2 Nf4+ Kg3 Rh1 Ne4 d2 Nf6 d1Q Kg4 Qd5 Bd2 Rb1 Kg3 Nd3 Kg2 Nd1 Kf1 Nc3+ Be1 Bc1 Bd2 Nb5 Ke2 Nf4+ Ke3 Qg8 Ke4 Nc3+ Kd4 Qg2 Ke3 Nh3 Kd3 Nf4+
3RqnB1/Pp2B2P/1P3N2/1BB4p/1RPb3r/2rp3Q/n2K1kB1/2qnR2b w - - 0 1 illegal: No proof kernel
q1RR4/rR1p2QK/2R1p3/3B1P1b/1n3P2/BNnPb1P1/p1BR1r1q/1r2k3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 Na6 b4 Bg7 Nc3 Nb8 Na2 Na6 axb5 Bf8 b6 Nb8 b5 Nh6 Nb4 cxb4 Ra5 Ng8 Ra6 Bh6 Ra1 Bf8 Ke2 Kf7 Kd3 h5 Ke4 a5 g6+ Kf6 b7 Kg5 b6 a4 g7 h4 g3 b3 Nf3+ Kg4 Rh2 h3 Ba3 b2 Rc1 b1Q Bd3 Na6 b8R Ra7 b7 Qa2 c4 Qb2 c5 Nb4 c6 Nf6+ Ke3 Ne4 g8B Rh6 c7 Nc3 Bd5 e6 Bc2 Be7 d3 Bg5+ Kd4 Be3+ Ke5 Rh7 Rg2 h2 Nd2+ Kh3 f4 h1R Re2 Rf1 Nb3 Rf2 Rd2 Rh5 Bc4 Kg2 Qg4 Rh1 Qg7 Rd1 Bd5+ Kf1 Ra8 Ke1 b8R Bb7 c8R Qh8 Kf6 Qa1 Kg6 Qh2 Bh1 Bf3 Rb7 Bh5+ Kh7 Qa2 Bd5 Qa1 Bb2 a3 Rc6 a2 Ba3 Qb2 Na1 Qb3 Rd8 Qc4 Rcc8 Qc7 Nb3 Qb8 Bb1 Qa8 Rcc2 Na4 R2c6 Nc3 Bc2 Rb1
5b2/3q1knK/2Pn3p/bR2pb2/1N1QR1RP/1rpN1Pp1/2rRP3/2N2B1R w - - 1 2 legal: proof: b4 c5 bxc5 b5 g4 f5 gxf5 Nf6 a4 Ng8 axb5 Qa5 Nf3 Qb6 Ng1 Qd8 c4 d6 c6 Qa5 c7 Qc3 c5 Qf3 c6 Qd5 Ba3 Qd3 Bc5 dxc5 Qc1 Qd7 Qd1 Qd8 h4 e5 d4 a5 Kd2 g5 Ke3 g4 Ke4 g3 f6 h6 f3 a4 f7+ Ke7 d5 c4 b6 a3 b7 a2 d6+ Kf6 d7 c3 Nd2 Rh7 Nb3 Ra6 Rb1 a1B Qd4 Rh8 Nh3 Ra2 Nf4 Na6 b8N Ne7 Nc1 Rc2 Rb5 Nf5 Nfd3 Qe7 d8R Bb2 Rdd5 Be6 c8R Nc7 Na6 Ba3 Nab4 Ng7 Ra8 Qe8 Ra4 Qd7 Rd6 Nce8 Rdd5 Bc5 f8R+ Ke7 Rf4 Bb6 Rg4 Kf7 Na6 Be7 Nab4 Ba5 Rd6 Nc7 Rdd5 Rb8 Rd6 Bf8 Rdd5 Nce8 Rd6 Bb3 Rdd5 Ne6 Kf5 Bc4 Re4 Nd6+ Kg4 Ra8 Qc5 Nc7+ Kh5 Qe6 Rg4 Nce8 Na6 Ba2 Nf2 Qd7 Rd2 Bb6 Rae4 Be6 Nb4 Ra3 Nfd3 Rb3 Qc4 Ba5 Qd4 Ke7 Kg6 Ng7 Kh7 Ke8 Nba2 Kf7 Nab4 Bf5+
RbqbBr2/PKp1p1pk/N2P1Q2/2N5/n2qN3/2N1P3/2Pp1N2/1BnrB3 w - - 0 2 illegal: Other
Qr5K/3Qq3/PBpPPp2/1PNB1r2/QbQ1qr2/Qr5k/4N3/R3n3 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 b4 h3 gxh3 Bc5 h4 Bd6 h5 Bf8 Nf3 a5 Bb2 a4 Ba3 Bd7 Bc1 a3 Ng1 Bc6 Bb2 Ba4 Bc1 Bb3 axb3 Bd6 Qc2 Be7 Qd1 Bf8 Ra2 b5 Rc2 Nc6 Rc4 Na5 bxa5 Qc8 Ra4 bxa4 b4 Qd8 Kf2 Ke7 Kf3 g5 Ke4 a2 Kf5 a1Q d4 a3 e4 g4 h4 a2 a6 f6 Kg6 c6 d6+ Ke6 h6 g3 h7 g2 h5 Qb8 d7 Qc8 d8Q Bh6 b5 Bf8 h6 Qb7 Qd5+ Ke7 e6 Qc8 e5 Qc7 Bc4 Qb2 Qa4 a1R Ne2 Ra7 Nbc3 Rb1 Ne4 Qb4 Nc5 Rb3 Be3 Rb7 Ra1 Qe1 Qf3 g1R+ Qg4 Qd7 d5 Rf1 Qe4 Rf4 Bd4 Kd8 e7+ Kc7 e8Q Ne7+ Kf7 Nf5+ Qe7 Rg8 h8Q Nh4 h7 Ng2 e6 Rg5 Qg7 Rgf5 Kg8 Qh4 h8Q Ne1 Qc2 Qh1 Qg3 Qe4 Qf7 Kd6 Kh7 Be7 Qa8 Bf8 Kh8 Qe7 Bf2 Ke5 Qcd3 Qe8 Qd7 Qe7 Qh3 Rg5 Qhe3 Kf5 Qc1 Kg4 Qca3 Rgf5 d6 Bh6 Qc2 Kh3 Bd5 Bg5 Bg1 Bh4 Qcc4 Bf2 Nd3 Bc5 Bf2 Bb4 Bb6 Qe3 Nc5 Qd4 Nd3 Qe4 Nc5 Rb8+
rn2NRQn/3b1K2/7k/2B1q1rn/1PQ2BPp/2R4B/PPr1BqbB/8 w - - 0 1 illegal: No proof kernel
q1B3nQ/3qB3/2P2Q2/b1nNN2b/1Pb1R2B/1k2q2p/1P2PBr1/B1K2r2 w - - 0 1 illegal: Other
RK2q1b1/RPPbb2p/5Q1Q/1P1rb3/1R3P2/3r1nn1/bR5R/1NBB2k1 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 c5 a4 Ra7 d4 Ra6 dxc5 Ra8 Nc3 Na6 Na2 Rb8 axb5 Ra8 b6 Nb8 b5 Nf6 Nb4 axb4 Rh6 Ng8 Rh4 Nf6 Rh1 Ng8 Kd2 Kf7 Kd3 e5 Kc4 d6 Kd5 e4 f4 b3 c4 e3 g4 e2 b7 e1B c6 b2 c5 b1B g6+ Kf6 c7 Be7 c6 Bg3 g7 Qe8 Be2 Ra3 Nf3 Rb3 Ra7 Bd7 c8R Be1 Nd2 Nh6 g8R Ba2 Nb1 Bc3 Rh2 Be5 Rg7 Rg8 Qd4 Rh8 Bd1 Rd3+ Bb3 Rg8 Rg5 Rg6 Rgh5 Rg8 Rb2 Rg5 Rhh2 Rh5 Rd8 Rg5 c7 Nc6 Rda8 Rh5 Ra4 Rg5 Rb4 Rh5 Kc4 Rg5 Qb6 Nd4 Ra7 Nf3 Qd4 Bd8 Qc3 d5+ Kc5 d4 Kb6 Be7 Ka6 Re3 Bc2 d3 Bd1 d2 Qd4 Rd3 Kb6 Kf7 f6 Ke6 f7 Nf5 f8Q Ng3 Qg7 Rh5 g5 Kf5 g6 Kg4 Qh6 Bg8 g7 Rg5 Bb3 d1B Bc2 Ba2 g8R Be2 Ba4 Bd1 Qdd6 Bdb3 Qdf6 Bf7 Rf8 Bg8 Bd1 Rh5 Rhg2 Kh3 Ka6 Qf7 Rfa8 Qe8 Rgc2 Nd2 Kb6 Kh2 Ka6 Kg1 Kb6 Ndf1 Rh2 Nd2 Ra3 B5d6 Ka7 Rhd5 Raa4 Nf3 Ra6 Qh5 Kb8 Be5 R6a7 Qe8#
n6r/6R1/Q4P1p/QPR1P1q1/Q3QrPq/7k/1N1QBBn1/n2Kb1qn w - - 0 1 legal: proof: c4 d5 d4 f5 g4 g5 gxf5 b5 a4 e5 axb5 g4 h3 g3 Nd2 Bb7 Nb3 Bg7 cxd5 Bh6 d6 Bf3 d5 Bg4 hxg4 Bf8 Nd4 exd4 f4 Kd7 b4 a5 e4 c5 f6 g2 b6 a4 f7 d3 b5 c4 b7 h6 f5 a3 Be3 a2 Rh5 c3 Ne2 g1Q Bf2 c2 Nc3 c1Q Na4 Qh4 f6 Ne7 Nb2 Na6 b8Q Ng6 Qa7+ Nc7 Qa6 Qcg5 Qda4 d2+ Kd1 Nf4 e5 Ng2 Rc1 a1N Rc5 Rd8 Qe4 Na8 Qea4 Be7 f8Q Rc8 Qg7 Ke8 Qh7 Rc6 Qf5 Kf7 d7 Rd6 Qf3 Kg6 d8Q Rc6 d6 Rc8 Rc1 Rc4 d7 Bb4 Qda5 Rf4 Rc5 Bc3 d8Q Bb4 Ke2 d1N Qfc6 Be1 Qdd2 Nde3 Qcb7 Nf5 Kd1 Ng3 Be2 Nh1 Qbe4+ Qf5 Qdc3 Qh3 Rh4 Kg5 Qd2 Qg3 Rc7 Q3h2 Rh3 Qg6 Rg3 Kh4 Rg7 Qg5 Rc3+ Qg3 Rc6 Kh3 Rc5 Q3h4
1nqrN2N/k1P2Npb/B7/Q1P2b2/NnPR2PK/2n1q3/2Q2N1p/2r1B3 w - - 0 1 illegal: No proof kernel
1k1K1B2/1r2B2P/1n1n2B1/QbN3B1/r2Q4/b1PPp1pb/q2b2P1/1N3RB1 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 c5 Qe2 Qb6 Qxh5+ Qg6 Qh6 Qb6 Qh7 Qd8 b4 Nf6 b6 Qc7 b5 Qd8 Ra4 Ng8 Rb4 cxb4 Bc4 Na6 Be6 Nb8 Bxd7+ Kf7 Ke2 a5 Kf3 e5 Kg4 Ke7 Kg5 Kd6+ f6 g6 f4 a4 h4 a3 b7 Kc7 c3 a2 b6+ Kd6 h5 a1B d3 e4 h6 b3 f5 b2 Ne2 Ra2 Ng3 Ra3 Qg7 Ra4 h7 Ne7 Be8 Nd7 b8B+ Kc6 f7 Kb7 f6 Nf5 Ba7 Ba3 f8B Nd6 Bf7 Qe8 Be7 Qg8 Be8 Qa2 f7 Rg8 Qf6 Rg7 f8B Ka8 Rf1 Ba6 Rg1 Bb5 Qd4 Rf7 Rf1 Kb7 Kh6 g5 Kg6 g4 Bcg5 Kc8 b7+ Kc7 Nh1 Nb6 Nf2 Rg7+ Kf6 g3 Nd2 b1B Bg6 B1b2 b8Q+ Kc6 Qa8+ Kc7 Qad5 Bc1 Q5e5 Bc2 Nb1 Bd1 Qec5+ Kb7 Qcb4 Bd2 Qa5 Nbc4 Bc5 Bg4 Bb6 Bh3 Ba7 Nf5 Bb6 Kb8 Ke6 Ba6 Kd7 Nfd6+ Kd8 Rf7 Ng4 Bb5 Ne5 Rg7 Bc5 Nb6 Nd7+ Kb7 Qe5 Rf7 Bg1 e3 Nc5+ Kb8 Qd4 Rg7 Bef6 Rc7 B6e7 Rb7
6N1/3qRR2/r2P1bn1/1kb2RQK/1p1Pq1P1/RP3NQq/r1R1p1B1/1r6 w - - 0 1 legal: proof: c4 b5 a4 f5 e4 g5 exf5 d5 cxd5 b4 f6 Bd7 Nf3 Bg7 Ng1 Bb5 axb5 Bf8 f4 Bh6 g4 Kd7 h4 Nc6 f5 Ke8 b3 Nd4 Bb2 Ne6 Be5 Bf8 Bf4 gxf4 Ke2 Nh6 Ke1 Ng5 hxg5 Ng8 Ke2 Kd7 Kf3 h5 g6 a5 g7 c5 d3 e5 b6 h4 b7 c4 b8Q c3 f7 h3 f6 c2 Qd2 c1R Qc2 a4 Qh2 a3 Nd2 a2 Qg3 h2 Ne4 Ne7 g8R Rb1 Rg7 Ra6 Bg2 Nf5 Qb5+ Kc7 Rh7 Bc5 f8R+ Qd7 Rff7 Rha8 Qa5+ Kb7 d6 Kc6 Re7 R8a7 f7 Ra8 Qd8 Kb5 Nf6 Nh4+ Ke4 f3 f8R f2 Ng8 f1Q Rf5 R8a7 Nf3 Ra8 Rg1 h1Q Rhf7 Qh3 Rh1 Qd1 Rh2 Qc2 Qf8 R8a7 Qg7 Ra8 Qg5 Qe2+ Kd5 e4 Ke5 e3 Kf6 Qc2 Kg7 Qc4 Kh6 Qe4 Kh5 e2 Rh1 Rd1 Rc1 a1B Rc2 Bf6 d4 Rb1 Rhc1 R8a7 Ra2 Ra8 Ra1 Ra2 Rc3 R8a6 Rc2 Rab2 Ra4 Ra2 Ra3 Ng6+
Q3R1rq/QQ2b1Qb/qBbPknB1/P1Q4r/1RPp4/4p3/2N3P1/3q1K2 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 d4 c5 dxc5 f5 h4 d4 hxg5 Nd7 Nc3 Nb6 Rh5 Be6 Rh1 Nd5 exd5 Bc8 Ne4 fxe4 a4 Kf7 f4 b5 c4 h5 c6 e5 g6+ Ke7 f5 e3 g7 h4 c7 h3 f6+ Kf7 a6 e4 a7 b4 Rb1 e2 Bd2 h2 Nf3 b3 Ba5 b2 Bb6 Ne7 g8Q+ Ke8 f7+ Kd7 Qg7 Bb7 c8Q+ Kd6 a5 Rh3 Qb3 Bc6 Qb7 Rh5 Kf2 Qe8 Ne1 Ng8 Nc2 Be7 f8Q Nf6 Qe3 Rd8 a8Q Qg6 Qba7 Ke5 Qb3 Kf5 Re1 b1B Rg1 h1Q Qb5 Bb4 Qfc5 Rg8 Qba6 Qh2 Q6b7 Qh6 Rh1 Qh8 Rg1 Qd6 Rh1 Ke5 Rh3 Ba3 Rb3 Qe6 Rb4 Qd6 Rc1 e1Q+ Kg1 Qd2 Re1 Qd1 Bd3 Qe6 Kf1 Qc8 Qbf7 Qa6 Qa7b7 Bc1 Qba7 Bg5 Qfc7+ Kf5 d6+ Ke6 Qcb7 e3 Bg6 Qg4 Re2 Bh4 Rf2 Qd1+ Ne1 Nh7 Rf8 Be7 Rc8 Nf6 Re8 Rh2 Bh5 Bh7 Bg6 Qb3 Nc2 Rh5 Ke2 Qd3+ Ke1 Qd2+ Kf1 Qd1+
2K2q2/1r1R1P1b/1P3B2/B1R1q1nr/k1p1pQ1B/N1P3Qr/4P1B1/q3B2n w - - 0 1 legal: proof: d4 d5 g4 e5 a4 h5 gxh5 b5 axb5 f5 Nc3 Bd6 dxe5 Kf8 exd6 Ke8 Ne4 fxe4 Kd2 Kd7 Kc3 c5 h4 g5 b4 a5 f4 d4+ Kc4 g4 Kd5 c4 b6 d3 c3 a4 h6 d2 h5 g3 b7 a3 h7 g2 f5 a2 h6 Ra6 b5 Qb6 f6 Ra4 f7 Ra8 Nf3 g1Q Ne1 Nc6 b8Q Qgf2 Nc2 Qa6 Rh5 Ne5 Qe1 d1Q+ Bd2 Qf6 Bg2 Qa3 Qg3 Nd3 Be1 Ra5 Rg5 Qb4 Na3 Qg7 Rb1 a1R Re5 Qda4 Rd1 Nf2 Rd2 Nh1 Rd4 Kd8 Kc6 Nf6 d7 Qbf8 Rc5 Rb1 Qbf4 Qg5 Rdd5 Qe5 Rd3 Ke7 d8B+ Ke6 Bb6 Ke7 Rd8 Bf5 Kb7 Bg6 Rd7+ Ke6 Re7+ Kd6 Bd8 Qd1 Kc8 Rb3 Rb7 Qa1 Rbc7 Nh5 Ra7 Ng7 Rb7 Ne6 Rbc7 Rg8 h8B Bh7 Bf6 Rh8 Bh4 Ng5 Re7 Rb2 Re8 Ra7 Ba5 Rb7 b6 Rd2 Bf2 Rd3 Be1 Bg6 h7 Re3 Rd5+ Kc6 Rd7 Kc5 Qh2 Rh3 Qhg3 Rg8 h8B Bh7 Bf6 Rh8 Nc2 Kb5 Na3+ Ka4 Red8 Bg8 Rc7 Rh5 Rc5 Qfd6 Rd7 Bh7 Qff3 Qde7 Qff4 Qf8+
1q1bk3/2n4n/1P2bP2/3P1B1r/2K1N1P1/BbQQ1q2/B2pN1Bp/4b1BR w - - 0 1 illegal: No proof kernel
qBR5/b1K2p1k/1rb1q3/2b4P/3Q1PPp/1Pn1BB1B/1N6/1Rn1bQB1 w - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 d4 Qd6 h3 Be7 Na3 Bb7 Nc2 Qd8 d6 Bf8 d5 Bc8 Nd4 exd4 Bf4 g5 Ra6 h5 Be3 g4 hxg4 h4 Ra1 a5 Bc1 Ra7 Bg5 Rh5 gxh5 Ra8 Bc1 Kd7 Qc2 Nf6 Bh6 Bb7 Qh7 Nc6 Qd3 Bg7 Kd2 Qe7 Qf3 Rh8 Ke1 Qd8 Nh3 Nb8 Ng1 Ng8 Bc1 Ke8 Qb3 Bc8 Qd1 Bf8 Kd2 c5 Kd3 a4 Ke4 a3 Ke5 c4 g4 c3 f4 d3 e4 c2 b3 a2 d7+ Ke7 b6 d2 b7 Bh6 d6+ Kf8 Bh3 Kg7 Qf1 d1Q Be3 c1B Nf3 Qe2 Ne1 Na6 b8B Bb7 Nd3 Nc5 Rb1 a1B+ Nb2 Ne7 Rh2 Qa6 Rc2 Bc6 Rc3 Qe8 d8Q Kh7 d7 Bf8 Kd6 Bd2 e5 Nd3 e6 Nc1 Kc7 Be1 Rc5 Qa8 Rc2 Nf5 e7 Ng3 Rc4 Nge2 Rc5 Bg7 Rc2 Nc3 Bg1 Qf8 e8B Bd4 Qf6 Qg8 d8B Bc5 Qd4 Qg6 Be7 Ba7 Bc5 Qe6 Bd7 Rd8 Bc8 Rd6 Bb7 Bb5 Bf3 Rb6 Qd6 Ba4 Bce3 Bc6 Qd4 Ne4 Nd1 Bac3 Nb2 Bb4 Rc4 Nc3 Kd8 Bb5 Rc8 Bc5 Kc7 Bc6
r1R3nQ/3pqPbb/n3B1p1/2RPr2P/KB1Q1p1P/N6B/2B1kB2/6q1 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 e4 e5 g4 f5 gxh5 Rh6 a4 Ke7 axb5 Rh8 Nc3 Qb6 Nd5+ Kf7 exf5 Qd8 f6 Ke8 f5 Kf7 Nf4 exf4 Qf3 Ke8 Qg4 Bb7 Qd1 Bc8 h4 Kf7 c4 a5 d4 a4 Kd2 g6 Kc3 a3 Kb4 a2 b6 Qc7 b7 Qd6 Be3 Ra6 Rc1 a1Q Ne2 Qc7 Bf2 Rh7 Bh3 Rh8 Nc3 Rd6 c6 Re6+ c5 Rd6 Nb1 Qa7 Na3 Qab6+ Ka4 Na6 b8Q Qcb7 c7 Qb1 c6 Qa8 Rc5 Bb7 c8B Qc1 c7 Bf3 Bb7 Rh7 c8B Rh8 Be4 Bg7 Bcb7 Re6 Bc2 Re5 Qd2 Qb1 Rc1 Bd5 Qb4 Be6 Bd5 Qa7 Rc8 Qc5 Qc4 Qf8 Rc5 Qe7 Qb2 Ke8 f7+ Kd8 f8B Bf7 Bc6 Kc7 f6 Kd6 Bd5 Qa1 Bde6 Qb1 Rh1 Qg1 d5 Re4 Qb6+ Ke5 Qd8 Re1 Qb4 Re3 Qbb6 Kd4 Qc8 Qg3 Rc1 Qg1 Bb3 Kd3 Bc2+ Ke2 Qb4 Re4 Qd4 Re3 Qa8 Re5 Rc8 Qd8 Bb4 Qe7 Rc5 Nh6 Qe8 Bg8 f7 Bh7 Qd8 Qeg5 Qf6 Ra8 Qd8 Qe7 Qh8 Ng8 Rc8 Ra7 Bb1 Rc7 Rc5 Ra7 Bc2 Ra8
2Q5/k4P1p/B2nr3/2q2RN1/1P2BP1N/1bpB1n1r/B1rP1p1B/K5Qq w - - 0 1 illegal: No proof kernel
6K1/2B2R1B/B1kn1q2/1p1r2p1/P2QBq1P/rPNp3P/2Bpp2Q/1N4b1 w - - 0 1 illegal: No proof kernel
nrB1Qn1k/Nnp3q1/q1KPb1r1/3P1Rr1/4q1RB/P1P1Q3/2QQ1b2/6Q1 w - - 0 1 legal: proof: e4 d5 exd5 a5 f4 g5 fxg5 Qd6 b4 Qd7 bxa5 Qd8 g4 h6 g6 Qd6 Nc3 Qd7 Ne4 Qd8 g5 h5 Nf2 Qd6 Ng4 hxg4 Bb2 Qd7 Bc1 Qd8 Kf2 b5 Ke3 e5 Ke4 b4 d4 g3 h4 f6 c3 b3 a3 b2 h5 b1Q+ Qc2 g2 h6 Nd7 g7 Kf7 a6 Bc5 a7 Ne7 d6 Kg8 Rh5 Nb6 Ne2 g1R Bh3 Rb8 a8Q Qf8 Qa7 Na8 d5 Rg3 Nd4 Ng6 Nc6 Bf2 Qe3 Be6 Na7 f5+ Kd3 f4 Kc4 e4 Kc5 f3 Kc6 Kh7 Bd2 Rg2 Be1 Rg8 Rh4 Qf6 Rg4 Nf8 Ra2 Qg6 Qed2 e3 Ra1 Bg1 Bh4 e2 Qe3 Qb4 Rf1 e1N Qed2 f2 Qe3 Qge4 Qed2 Kg6 h7 Nd3 h8Q Qbd4 Qh6+ Kf7 Qe3 Nc5 Qed2 Nb7 g6+ Ke8 Qhe3 Qf6 Re1 f1Q Ra1 Qfd3 Rf1 Qe2 Rf5 Bf2 Rgf4 Rg5 Rg4 Rh8 g8Q Rh6 g7 Rhg6 Qh8 Qe7 g8Q Qa6+ Qb6 Qf7 Qhd4 Qg7 Q4e3 Rf6 Qh8 Kf7 Qh5+ Kg8 Qe8 Qa5 Qbb1 Kh8 Qg1 Rh6 Bf1 Rhg6 Ba6 Nc5 Bc8 Nb7 Qed4 Qa6+ Qb6 Qae2 Qbe3 Qa6+
r3bnq1/1kn2P1r/R4nB1/1P2RP2/QBnR1R1p/2Qn3P/2b5/bKR1N3 w - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 Kd7 f6 Ke8 f5 Kd7 Nc3 Ke8 Nce2 Nd7 Nf4 gxf4 Ra6 Nb8 Ra5 Ba6 Ra1 Bc8 d4 Kd7 Kd2 c5 Kc2 Kc7 g4 h5 b4 a5 h3 e5 d6+ Kb7 d5 h4 g5 e4 g6 a4 b6 a3 g7 a2 f7 f3 d7 f2 b5 e3 d6 c4 Rb1 e2 Ba3 c3 Rb4 a1N+ Kb1 e1N Rf4 Nd3 Be2 f1B Qa4 Na6 Bh5 Ndc5 Bg6 Nc2 Bb4 Rh7 Nf3 Bd3 Rc1 Ne6 Ne1 Nf6 g8R Bg7 Re8 Nf8 Re5 Qe8 d8Q Nc7 Qe7 Bd7 Qe6 Qd8 Qc4 Be8 d7 Bh8 Qcb3 Ne3+ Qc2 Qb8 d8R Nc4 Rdd4 Be4 Qd3 c2+ Ka2 Qd8 Qc3 Kb8 b7 Qc8 Rcd1 c1N+ Ka1 Nd3 Kb1 Qd8 Rc1 Qc8 Qab3 Ka7 b8R Qd8 Rc8 Kb7 Qa4 Qd5 Qcc2 Ndb2 Re6 Nh5 Rd3 Na6 Rcc6 Nc7 Ra6 Bd4 Rdd1 Nf6 Re5 Bd3 Rd2 Qg2 Bh5 Qg8 Bg6 Be4 Rd3 Bc3 Rd4 Bd3 Ka2 Be4 Qd2 Bc2 Ka1 Nd3+ Ka2 Bb3+ Kb1 Ba1 Qc3 Bc2+
2q1b1r1/Q3P1B1/bn1kn2R/2r1NQbP/1Q1r3R/2QbpqQ1/P1K1P3/3B4 w - - 0 1 illegal: No proof kernel
3qB1Q1/3rB1nQ/q6b/1rpP2Rr/B1P1K2P/qn1qRPN1/8/1kBB1b2 w - - 0 1 legal: proof: e4 a5 g4 f5 gxf5 d5 exd5 h6 b4 Qd6 bxa5 Qd7 Nc3 Qd8 Ne4 h5 Nf6+ Kf7 Ng4 hxg4 Ba6 Ke8 Bc4 Na6 Bf1 Nb8 Ke2 Kf7 Kd3 Kf6 h4 Ke5 c4 c5 a4 g5 f6 b5 a6 g3 d6 b4 a5 g2 f3 b3 d7 g4 a7 b2 a6 b1R f7 g3 Qb3 Bh6 f8B Nc6 Rh3 Na5 Be2 Nf6 Qd1 Nh5 Ba3 Nb3 Qe1 Ng7 Bc1 e6 Kc2 Kd4 Ra3 e5 Be7 e4 Bd1 e3 d3 Rb8 a8B e2 a7 Rb5 Bc6 Rh7 Qd2 e1Q a8B Qf1 Rh1 Rb7 Ba4 Ra7 B8c6 Qe2 Nh3 g1Q Nf4 g2 Nh5 Qge3 Ng3 g1Q Rh2 Qe6 Rg2 Qge3 Bcb5 Qf1 Qa5 Qa6 Qc7 Na5 Bc6 Rb5 Rc3 Nb3 Rg1 Qg8 d8Q+ Qd5 Qf8 Bh3 Be8 Qd8 Qg8 Rh8 Qb6 Rd7 Qg6 Bg2 Q6h7 Qfe2+ Bd2 Bf1 Rg2 Ke5 d4+ Kf4 d5 Qd3+ Kb2 Ke5 Bc1 Kd4 Rcc2 Qe1 Rce2 Qb4 Re5 Qba5 Rg5 Qb4 Rc2 Qa3+ Kb1 Qe3 Re2 Kc3 Re1 Qd4 Re3+ Qd3+ Bc2 Qab6 Rg6 Bf4 Qh6 Qa6 Rg4 Bg5 Qg6 Rh5 Q6h7 Bh6 Rg6 Kb4 Rg5 Qd4 Bd1 Qg4 Kc2 Qf5+ Re4 Qfg6 Ne2 Qf5 Kd3 Qfg6 Ke3 Qf5 Ng3 Kc3 Re5 Qd3+ Kf4 Qc2 Re3+ Qd3 Bd2+ Kb2 Bc1+ Ka2 Ke5 Qc3+ Ke4 Kb1 Nf5 Qd2 Ng3 Qd3+
1nb1kNq1/4q2P/2bb1r2/1K3r2/3B1NQ1/1Pp1bnPN/1NP2qN1/RB4Q1 w - - 0 1 legal: proof: f4 b5 d4 e5 dxe5 h5 a4 h4 axb5 h3 Ra3 g6 Rf3 g5 Rf2 Na6 fxg5 Nb8 g3 Ke7 Rg2 hxg2 Bd2 Ke8 Bf4 Nf6 Bc1 Ng8 Kd2 c5 Kc3 d5 h4 a5 e4 f5 b6 a4 h5 a3 e6 c4 e7 f4 Kb4 d4 h6 d3 g6 c3 e5 a2 h7 a1B b7 f3 g7 f2 Nh3 g1Q Na3 d2 Kb5 Kf7 e8N Qf6 e6+ Ke7 Nd6 Qh4 Bc4 f1Q Nf5+ Kd8 e7+ Ke8 Ne3 Ra6 Ng2 Qf7 Ba2 Qgf2 b3 Rf6 Bb1 Nh6 g8Q Nf5 Qgg4 Bb2 Nc4 Qg8 Qg1 d1B Be3 Bf3 Bd4 Bc1 Nb2 Be4 Qh2 Bd5 Qg1 Nd7 b8N Be3 Nc6 Qhg5 Nb4 Nb8 N4d3 Nh4 Ndf4 Qe5 Qg7 Nf3 Qg4 Kf7 e8N Bd6 Ng7 Qe7 Nge6 Ke8 Nfd3 Qgf7 Ndf4 Rf8 Bc5 Qg8 Bd4 R8f7 Nf8 Rf5 Qh2 R7f6 Rd1 Rh5 Qg1 Re5 Ba2 Rh5 Ra1 Rhf5 Bb1 Bc6+
NNBN1n2/KPNn4/bbQ5/1QBnR3/2Pr3k/1pr2p2/q3PP2/q1q3N1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 c5 b4 Ba6 b6 Nc6 b5 Bc8 Ra4 Nb8 Rb4 cxb4 Kd2 Ke7 Ke3 d5 Kd4 f5 Kc5 a5 c4 g5 h4 a4 b7 f4 h6 b3 h7 d4 e6 Kf6+ e7 g4 h5 Kg5 b6 d3 h6 d2 Rh2 a3 Bh3 a2 Ba3 a1Q Nc3 g3 Nb5 g2 Nc7 Nf6 Qe1 d1Q Qa5 Qdc1 Qb5 Nd5 Bd7 Bg7 e8N Bc3 Rh1 Rg8 h8N Ba5 h7 f3 Bh3 Kh4 Nf7 Rg4 Qc6 Qdf6 Nd8 Rd4 h8Q+ Qfh6 Qf8 Qhd2 Qf5 Qda2 Qe5 Ra6 Na8 Nd7+ Kb5 Rd3 b8N Rc3 Bc5 Ra7 Qf5 Rb7 Ka6 Rc7+ Qb7 Rc6 Ka7 Rd6 Qc6 Ba6 b7 Ne7 Bd4 Ng6 Qfb5 Ngf8 Bc5 Rd4 Be6+ Kg5 Nh3+ Kh4 Nec7 g1N Rh2 Ne5 Bc8 Ned7 Ng5+ Nh3 Rg2 Nf4 Nh3 Kh5 Rg5+ Kh4 Re5 Nd5 Ng1 Bb6+
n3Q1bn/q1R2rBb/b2Q4/3n1P1p/p3Q3/PQ4qk/PNQ3rP/1BK2N2 w - - 0 2 legal: proof: e4 f5 f4 g5 c4 d5 cxd5 Bg7 Nc3 Bd4 Rb1 Bc5 Ra1 Ba3 bxa3 Na6 Rb1 Nh6 Rb4 Ng8 exf5 Kf8 f6 Ke8 f5 Nb8 Rf4 gxf4 g4 Kf7 d4 b5 Kd2 e5 d6 h5 d7 a5 d5 c5 d6 c4 g5 f3 Ne4 a4 Nc5 f2 Qe2 b4 Bb2 b3 Qe1 c3+ Kc1 e4 Bg2 f1B Nd3 e3 Qh4 e2 Ba1 b2+ Kc2 b1B+ Kc1 c2 Bf3 e1Q+ Bd1 Ba6 Nf3 Qda5 d8Q Qg3 d7 Ne7 Nc5 Ng6 Rg1 Rh7 Bd4 Bfc4 Nd2 Nh8 Qc7 Be6 d8Q+ Nd7 Qc6 Nb6 Qdd6 Rg8 Qhe4 Na8 Nf1 Bac4 Ba1 Qa7 Nd3 Bed5 Nb2 Rg6 Kd2 c1N Bc2 Ne2 Rg2 Nf4 Kc1 Bb3 Bd3 Bdc4 Rc2 Nd5 Rc3 B1c2 Qc8 Bd1 Bb1 Ba6 Qcc5 Bde2 Qf2 Beb5 Qfc2 Be8 Rc5 Kg8 Rc7 Rf7 Qdc6 Kh7 Qd6 Rg8 g6+ Kh6 g7 Kg5 Qh1 Rff8 Qhe4 Bg6 f7 Bbc4 Qd4 Bh7 Qde4 Rb8 f8Q Rb7 Qfe8 Bb3 Qe1 Kh4 Qeb4+ Kh3 Qbe4 Rf8 g8Q Rf7 Nd1 Rb4 Bg7 Rd4 Nb2 Rd2 Qb5 Rg2 Qge8 Ne3 Qbb4 Be6 Qbb3 Nd5 Qg8 Re7 Qf8 Beg8 Qe8 Rf7
1r6/q1B1p1Qq/npBP4/b1P1KQ1B/N3P3/R3r1B1/2bkP1n1/q2N1n1B w - - 0 1 illegal: No proof kernel
qq3b2/3R1KP1/1Pk5/n2rp1BN/2qR2Qp/1P1Q2Q1/Q3P1rn/QBb2b2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 g4 f6 g6 Qd6 Nc3 Qd7 Ne4 Qd8 Ng5 Nd7 N5f3 Nb8 g5 f5 Nh2 Bh6 Ng4 fxg4 Nf3 Bg7 Ng1 Bf8 d4 Kd7 Kd2 h5 Ke3 a5 Kf4 e5+ Kf5 c5 f4 c4 d6 c3 d5 c2 g7 a4 Kg6 g3 b3 g2 b6 h4 f5 a3 f6 a2 f7 Na6 Nh3 g1Q Nf4 Rh5 Bg2 Qe7 Be4 Rh8 Nh5 Nh6 g8Q Bg7 f8Q Nc7 Qf3 Qc5 Qg3 Ne8 Rf1 Rb8 Rf4 Ng4 Qf1 Qd8 Kf7 Qc6 g6 Bf8 Bd2 c1B Bb1 Rb7 Rd4 Nh2 Bg5 Qc4 g7 Rh6 Qff3 Rc7 Qfg4+ Re6 Qh7 Rc5 Qc2 Bb7 Qd1 Qb8 Qd2 Nf6 Qdd3 Ne4 Qc2 Ba8 Qd1 Nd2 Qh1 Kc8 d7+ Kb7 d6+ Rd5 d8Q Kc6 d7 Rg6 Qe7 Bb7 d8Q Bc8 Qa7 Bf5 Q4f3 Bh3 Qfg4 Bf1 Qa3 Ne4 Qb2 Nc5 Qc2 Nb7 Qcd3 Qd6 Qa8 Qb8 Bc2 Rf6+ Kg8 Bca3 Re4 Bg2 Qd4 Rf2 Rd1 a1Q Rf4 Bb2 Kf7 Qaa7 Qde3 Rb5+ Rd5 Qaa4 Qa1 Bf1 Bb1 Bc1 Qd3 Rg2 Rd4 Qa3 Qa5 Qa2 Qad2 Qaa8 Q2c2 Na5 Qca2 Qb4 Rd8 Rd5 Rd7 Qc4
nRrn4/B2p1P2/3P1N1B/1r1B2KB/1NBrq2p/3bb1Qr/1P5P/3Q2bk w - - 0 2 legal: proof: e4 b5 f4 g5 a4 f5 axb5 c6 bxc6 Bg7 Ra4 Be5 exf5 Bg7 f6 Bh6 f5 Bf8 Rf4 gxf4 Ke2 Kf7 Kf3 a5 Kg4 h5+ Kg5 e5 g4 h4 d4 a4 c4 e4 c5 f3 c7 a3 d5 e3 c6 f2 Nf3 a2 Rg1 a1R Ne1 e2 Nc2 e1B Be2 f1R Nc3 Qe7 Ne4 Rf3 Be3 Bf2 Ba7 Na6 Nb4 Nh6 d6 Rb8 Rg2 Ra4 Rg3 Rfa3 Rb3 Bg7 Bf3 Bb7 c8Q Nc7 Be2 Na8 c7 Bg1 Qd8 Bc6 c8B Bb5 Ba6 Bd3 Bc4+ Qe6 Qa5 Rhc8 Qe5 Rb5 Qg3 Bh8 Nc3 Bg7 Ncd5 Qe4 Bf3 Ng8 Be2 Ne7 Bf3 Nc6 Be2 Kg8 f7+ Kh7 f8B B7d4 f6 Nd8 Bh6 Bgf2 Kh5 Bg1 g5 Bdf2 g6+ Kg8 g7 Kf7 Kg5 Ke6 Qf3 Ke5 g8B Qh7 Nb6 Qe4 Bgd5 Kd4 Qg2 Ke3 f7 Bg3 Qh3 Kf2 Qg4 Kg2 Qh3+ Kh1 Bh5 Bf2 Qg3 Bc5 Be6 Bf2+ N6d5 Rbb8 Nf6 Rb7 Na2 Rb5+ Bcd5 Rd4 Rb4 Rbc5 Rb8 Rb5 Nb4 Bc4 Qf4 Rh3 Qe5 Bd3 Qg3 Rb7 Bc4 Rb5+ Bed5 Be3+
6n1/1K1N1rPR/b1B1N1kp/r2N1N2/2P5/pn3QNP/2Pn1Br1/2r2Qbq w - - 0 1 legal: proof: e4 f5 a4 b5 axb5 c5 d3 c4 dxc4 Qb6 Kd2 Qc7 Ke1 Qd8 exf5 g5 f4 Na6 f6 Nb8 b4 Qb6 f5 Qd8 Ra3 Nc6 Rf3 Nb8 Rf4 gxf4 Kd2 Kf7 Kd3 e5 Ke4 a5 Kd5 a4 g4 f3 g5 e4 g6+ Ke8 g7 Kf7 b6 f2 b5 d6 b7 e3 b6 e2 Bg2 e1R Be3 f1N Bf2 a3 Qf3 Bd7 Nc3 Rc1 Nge2 Nc6 b8N Nd2 b7 Na5 Nc6 Nab3 Ncd4 Bb5 b8N Ra5 Nd7 Qe7 Ng3 Qe1 Qd3 Be7 Qf1 Bd8 Be4 Bb6 Bg2 Nh6 Be4 Rf8 Bf3 Ng8 Bg2 Ba6+ Kc6 Bb5+ Kb7 Bc5 Bc6 d5 Ne6 d4 Nd5 d3 Nd4 Nb1 Qh3 d2 Qg2 d1R Qf1 Ke8 f7+ Kd8 f6 Rd2 Bg1 Rg2 Ndf5 N1d2 Bf2 Qe4 Be1 Bg1 Bf2 Re8 f8N Re7 Ne6+ Ke8 Qd1 Kf7 Qf3 Kg6 f7 Qh4 f8Q Rf7 Be1 Bb6 Bf2 Qe4 Re1 Qh4 Re5 Qe4 h3 Qe1 Re4 Qh1 Rh4 Ba7 Qb8 Bb6 Qe5 Bc5 Qee2 Ba7 Qf1 Bb6 Be1 Bg1 Bf2 Rb1 Ng5 Rc1 Re4 Nf6 Re8 h6 Rh8 Ng8 Rh7 Rf6 Ne6 Rf8 Nec7 Rf7 Ne6 Ba6+
2N3KR/1R1QB1P1/1R3bk1/P4r2/2RpQpb1/3R1Pn1/P2rn2p/br2q2N w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 h4 Ra7 hxg5 Ra8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb8 Bc4 Ke8 d7+ Ke7 Bb3 Kd6 Bc4 Kc5 d6 Kc6 Bd5+ exd5 Ke2 f5 Kd3 h5 Kd4 b5 Ke5 b4 Ke6 f4 Kf7 h4 g4 h3 g6 b3 f3 b2 g7 h2 e4 Rh7 g5 Ra6 e5 Bb7 g6 Rh5 e6 Ne7 g8R Nf5 e7 Bc8 e8Q Bg7 Ne2 Qh4 Na3 b1R Ng3 Bf6 d8R+ Kc5 d7 Kd6 g7 c5 Qee2 c4 Rh8 c3 Qe4 c2 Kg8 Nc6 Re8 Ra7 d8R+ Rd7 Re7 Ncd4 Bb2 c1B Nc4+ Kc5 Rf1 Ne2 Nb6 Kd6 Nh1 Qe1 Rf2 Bd2 Ba3+ Bb4 Qd2 Nfg3 Rf1 Rf5 Rg1 Rb2 Rc1 Rb1 Rc5 Bbc3 Rc4+ Rb4 Qdd3 Bce5 Rf7 Ke6 Rg2 Rd6 Rb7 Rb1 Rg1 Rd7 Be7 Rd6 Kh7 Bd7 Nc8 Kf7 Qd1 Ba1 Qa4 Be6 Qd7 Re5 Rf1 Bg4 Rf2 Rf5 Rg2 Nc3 Rgb2 Nce2 R2b6 Rc6 Rd4 Rc2 Ra4 Rd2 Rc4 Bfb2 Bd6+ Kf6 Kg8 Kg5 Be7+ Bf6 Rb3 Kg6 Rd3 d4 Rf8 Be5 Rf6+ Kg5 Ra6+ Bf6 Rab6 Kg6
1qN1k3/r1Q1B1p1/1b2Q3/b1p5/1QPnKP1N/R1P2nPn/b5pr/1R4QQ w - - 1 2 legal: proof: e4 b5 a4 f5 axb5 h5 exf5 c6 g3 h4 Bg2 Qa5 c4 Qc3 dxc3 h3 Qf3 hxg2 Qh5+ Kd8 Qd1 Ke8 Kd2 a5 Ke3 d5 h4 e5 f4 a4 b4 e4 b6 a3 f6 a2 b5 Be7 b7 Nd7 b8Q Ne5 b6 Ra7 b7 Nf3 h5 Bb4 h6 Ba5 h7 Ne7 Qe5 Bf5 Nd2 Bg6 Rb1 a1Q Ba3 Qb2 Qe6 Qb4 Ra1 Qd6 Bc5 Qb8 Ra3 Bf5 Nh3 Bg6 Nf2 Bf5 Qg1 d4+ Ke2 e3 Nfe4 Bg6 Kd3 e2 Bd6 e1B f7+ Kd8 Bb4 Nf5 Nd6 Bf2 Ke4 d3 Nc8 Bfb6 f8Q+ Be8 Nf1 d2 Ne3 N5d4 Nf5 d1N Qff7 Bd7 Nh4 Be8 Bd6 c5 Bf8 Ba4 Bd6 Re8 h8Q Bb3 Qh7 Rh8 Bf8 Qd6 b8Q Ba2 Qfb7 Qc7 Be7+ Ke8 Qhh6 Qd6 Q7c7 Nf2+ Ke3 Nh3 Ke4 Ra6 Qbb7 Ba7 Qb4 B7b6 Qe3 Rh7 Rb1 Ra7 Qg1 Qc6+ Qd5 Qa8 Qe6 Qb8 Qdd6 Ne2 Qdd1 Ned4 Qh1 Rh8 Qdg1 Rh5 Nf5 Nf2+ Kd5 Rh2 Nh4 Nh3 Ke4 Ra6 Ra1 Ra8 Rb1 Ra7
1b4k1/1r4pb/QqK2PN1/1B4Rb/7p/nPn1BpP1/P1QQ4/N2Qn1Qr w - - 0 1 illegal: No proof kernel
2N1n1R1/4q2B/2rP4/7B/nR2b1Pp/rPQp1p2/kbKP2Bb/B3QqB1 w - - 0 1 illegal: No possible last move, all moves rejected
R1bQ4/P1Q1rRKr/1Q1b2Q1/5Np1/1n1B2p1/PPpq2n1/2P2QB1/3kq1b1 w - - 0 1 illegal: No proof kernel
N1R1rNq1/N3Q2b/1BQN1b2/qBPn1Nn1/P1q2k1r/1p3Pp1/1P1p4/5K2 w - - 0 1 illegal: No proof kernel
R1bQ3R/qQp3p1/rqP2nk1/1Pq5/1p1Qn3/3Q1r2/PPN1Q1BK/3b2B1 w - - 1 2 illegal: No proof kernel
5R1r/qpn5/Q2P1RbB/1BPK1Q2/1q2Pp2/nP3Brp/B3bB2/1Nbk4 w - - 0 1 illegal: No proof kernel
1K1N4/1q1bB2p/1Q2Q1n1/qrPN2bR/2p5/2P3pP/r1P1q2b/1k1NNB1N w - - 0 1 illegal: No proof kernel
3nRQK1/2q4r/pN1R2p1/kN1b3p/P6P/b1P1N2Q/Bb3nPN/N1q3b1 w - - 2 3 legal: proof: d4 d5 c4 c5 cxd5 b5 e4 c4 e5 a6 e6 c3 bxc3 f6 d6 Ra7 d5 Rc7 Bf4 Rd7 exd7+ Kf7 Be5 fxe5 Ke2 h5 Kf3 e6 Ke4 b4 h4 b3 f4 g6 a4 b2 f5 Bg7 f6 Rh7 Qf3 Qf8 d8Q Ne7 d7 Bb7 Qh3 Nf5 Na3 b1Q+ Nc2 Ne3 Bc4 Qc1 Nf3 Qe7 Re1 Ng4 Nh2 Bf8 Ne3 Nc6 d6 Ba8 Ba2 Nf2+ Kf3 e4+ Kf4 Bb7 Kg5 Ba8 Qc8 Nd8 Rb1 Bd5 Rb6 e5 Qc5 Nb7 d8N+ Ke8 Nc6 Nd8 Nb4 Qc7 Nc2 Be7 Na1 Bf8 Qf3 Kd7 f7 Kc8 Rc6 Kb7 d7 Bd6 Kf6 Bf8 Qd4 Ba3 f8N Bb2 Qd3 Ka7 Nd1 e3 Rd6 e2 Ne3 Kb7 Qdf5 e4 Q5h3 Ka7 Ne6 Kb7 Nd4 Ka7 Nb5+ Kb7 Rd1 e1B Re6 Ba3 Re8 Kb6 Qff5 Ka5 Qf4 Rh6 Kg7 Bd2 Qf7 Rh7+ Kg8 Ne6 d8N Bb2 Nec2 e3 Qf8 e2 Nf7 e1B Nfd6 Be3 Nc8 Bc5 Ne3 Bca3 Nb6 Nd8+ Qf7 Ng4 Rd4 Bf2 Rd2 Bg1 Rd4 Bc6 Qf8 Nf2 Rd6 Bd5+
7q/1N1QpN1p/2NPNb1P/KQ2RbrN/2b3PR/2p3P1/1n3p2/2nr2kB w - - 0 1 legal: proof: e4 b5 c4 d5 exd5 g5 b4 a5 f3 g4 fxg4 Nf6 Ba3 Nbd7 cxb5 Ng8 b6 Nb8 b5 Bg7 Bc5 Bf8 Bb4 axb4 h4 Kd7 d4 Kd6 Kd2 f5 a4 c5 b7 f4 h5 b3 Kc3 f3 b6 c4 Kb4 c3 a5 b2 a6 f2 g3 Qe8 a7 Qc6 h6 Bd7 Ra5 Qc8 Nf3 Qd8 Rh4 Bc6 Bg2 Bg7 Bh1 Nf6 Nbd2 b1B Ne5 Nbd7 b8N Ne4 b7 Bb5 Nbc6 Bc4 Qa4 Rb8 a8N Nb6 Nc7 Rg8 Ne6 Bf6 Qd1 Rc8 b8Q+ Rc7 Rc5 Na4 Qb5 Rg5 Ka5 Nb2 Qda4 Qh8 Nf7+ Kd7 d6 Bc2 Rf5 Nc5 d5 Ncd3 Ne4 Nc1 Re5 Rc8 Nd2 Bf5 Ne4 Rd8 Nf4 Kc8 d7+ Kc7 Nc5 Re8 Nfd8 Kd6 Nde6 Rc8 d8N Rc7 Re2 Rd7 Nh5 Be4 Nb4 Ke5 Ncb7 Rd6 Nef4 Kd4 Nf7 Bf5 Re5 Rd8 Ng7 Rd6 Nfh5 Rd8 Nc6+ Kd3 Ne6 Rd7 Be4+ Ke2 Bf3+ Kf1 Bh1 Kg1 d6 Rc7 Nb8 Rc5 Nc6 Rd5 Ncd8 Rd2 Qd7 Re2 Nc6 Re1 Qb5 Rd1
BBq1Bb1r/2Q3P1/4pPBr/1Pp5/pB2b1p1/n1Q1n1PR/K5k1/1nN2N2 w - - 0 1 illegal: No proof kernel
6k1/pbN1Kp2/nPRn1P1p/p3Pq1B/3B1b2/1B4rP/5QNp/2Q1b1BB w - - 0 1 illegal: Other
6BQ/1Q2qbp1/2N1r2P/Rp1p4/n2KnpP1/NPNNqP2/3R2p1/1N4kb w - - 1 3 illegal: No proof kernel
3Qrk1N/Nb3pp1/B1pR1P1q/1pbQ4/1PQQ4/1rr2P2/Q5PK/nnr1B3 w - - 0 1 illegal: No proof kernel
rnRQ1QK1/p7/2p1PRN1/3P1Br1/3b1Q2/1PQ1Nrrn/3P1N2/4k3 w - - 0 1 legal: proof: g4 d5 f4 e5 fxe5 b5 c4 h5 gxh5 c6 cxd5 b4 b3 Qf6 a3 Qd6 axb4 Bf5 b5 Qd8 b6 Na6 b7 Rc8 b8Q Ke7 e4 f6 Qa8 Rb8 e6 Rb4 Bb2 Ra4 Bd4 Qa5 Be5 fxe5 d6+ Kf6 Qe2 Qd5 exd5 Bg4 Qxg4 Ra5 Qd1 Ra2 Kf2 Kf5 Kg3 Ke4 Kh4 g6 Kg5 Nf6 h4 Rh6 d7 Bb4 d8Q Bc3 Nh3 Kd4 Nf2 e4 Qf3 e3 Bh3 e2 Na3 e1R Bf5 Rc2 Nc4 Ng4 Ne3 Rh8 h6 Rf1 h7 Nb8 h5 Rg1 h6 Rg3 Raf1 Rg8 Ne4 Kd3 h8Q Bd4 h7 Rc3 Qf4 Nf2+ Kh6 Nh3 Nf2+ Ke2 Qhe5 g5 h8N g4 Kh7 Rf3 Ng6 g3 Qf8 g2 Qh8 Nd7 Qad8 g1R Rh2 Rd3 Rg2 Nb8 Rg4 Bc5 Qc3 Bd4 Rh4 Rg5 Rh5 Rg7+ Kh8 Rc7+ Kg8 Rc8 Rh7 Rfg3 Rf7 Rf3 Rf6 Rfg3 Rg1 Rf3 Rg4 Ke1 Rg3 Na6 Rg4 Ra8 Rh4 Nb8 Rh7 Bc5 Rc7 Bd4 Rc8 Rfg3 Neg4 Rdf3 Ne3 Bb6 Bc2 Bc5 Bf5 Bd4
1NN5/1Pk5/1rrR2KP/1RPn4/1B1q1Q1q/1b2PNr1/rNQ2R1q/3q4 w - - 0 1 legal: proof: b4 e5 f4 b5 fxe5 c5 d4 a6 dxc5 Qh4+ g3 Kd8 a4 Qh3 axb5 Ra7 b6 Qe6 b5 Qe7 b7 Ke8 b6 Qd8 Bg2 Ra8 Bg5 h5 Bd5 h4 Kd2 h3 Bc6 g6 Be3 g5 Ke1 g4 Bb5 Be7 Bf4 axb5 Bc1 Bh4 gxh4 g3 Nf3 g2 Bb2 Nc6 Ng1 Nd4 Ba3 Nf5 Bc1 Ng3 hxg3 Qf6 Ra4 Qg5 Ra1 Qd8 Kd2 d5 Ke3 Kd7 Kf4 f5 b8N+ Ke6 c4 b4 b7 h2 e3 d4 h5 d3 g4 b3 h6 d2 c6 b2 g5 Qe7 g6 Ra6 g7 Qd8 c7 Qd4+ Kg5 f4 c5 f3 Qc2 d1Q Nc3 b1R Bd2 f2 Ra5 f1Q Nf3 Qf2 Rf1 h1R Kg6 Nf6 g8R Rbb6 Rb5 Rh3 Rd8 Ra2 Na4 Qfh4 Bb4 Nd5 Nb2 Ke7+ Rd6 Be6 Rf2 g1Q+ Ng5 Qh2 c8N+ Ke8 Nf3 Bg8 e6 Rh7 Rc6 Kd8 Rd6+ Kc7 e7 Rf7 e8Q Rd7 Re6 Rdd6 Qf8 Rdc6 Rd6 Nf6 Nd3 Bb3 Nb2 Nd5 Qf4 Rg3+
KN1q1knN/4b1qP/5PQ1/N5pr/Qn1P1B1R/4Nq2/2R3P1/3n2Rr w - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 b4 f5 bxa5 b5 e4 h4 exf5 h3 a6 b4 Qh5+ Kd7 Qxh3 b3 Qh7 Ke8 Be2 Bd7 Bc4 Bb5 axb5 Ra7 b6 Ra8 Bb5+ Kf7 Be8+ Kxe8 Ke2 g5 Kd3 c5 Kc4 e5 Kb5 c4 d4 b2 h4 e4 f4 c3 a7 c2 f6 e3 b7 e2 h5 e1Q d6 Qe3 f7+ Kd7 h6 Qf6 Kb6 Qa3 f5 Qe3 Nh3 Qf4 Qg6 Qh2 h7 Na6 b8N+ Kd8 Kb7 Nh6 d7 Ke7 d8R Qhe5 Nd2 b1N Nb3 Rg8 Na5 Nb4 Nf2 Nc3 Rc8 Nd1 Bf4 c1Q Rc2 Qa3 Ng4 Rg7 Rh3 Ng8 Rh4 Qed6 Ne3 Qd8 Nd7 Rc8 a8Q Qd3 Nb8 Qe4+ Ka7 Qf3 Qc6 Qe5 Ka8 Qec7 Qh6 Rg6 Rb1 Re6 Qg6 Qe5 Rbc1 Qg7 Ra1 Re4 Qa4 Rc3 Rac1 Rd3 Ra1 Rd2 Rac1 Rf2 Rb1 Rf1 Ra1 Rh1 Rac1 Nb2 Rg1 Nd1 f6+ Ke6 Qh6 Be7 f8N+ Kf7 Ng6 Qd7 Qa1 Qd8 Nh8+ Ke8 Qg6+ Kf8 Rg4 Rh5 Qa2 Rh1 Qa4 Rh5 Rh4 Re5+ Nd5 Re1 Rf1 Qg3 Ne3 Qh3 Rf3 Rh1 Rf1 Qg3 Rg1 Qf3+
1N2KrN1/Rpp4n/nBnP4/2P4k/P2PQ1r1/b4NBB/n7/b4N1Q w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 a4 e5 e4 d5 exd5 e4 f4 e3 a6 Qe7 a7 Qe5 fxe5 f4 Ra3 e2 Rg3 Bf5 gxf5 Na6 Rg2 Kd7 Rg4 Rd8 a8Q hxg4 Qa7 Ra8 Qb8 Bd6 Qxe2 Be7 Qd1 Bf8 Kf2 Ke7 c4 Kf7 h4 g5 f6 Kg6 d6 f3 Ke3 f2 Ke4 g3 Kd5 g4 Ke6 g2 Kd7 g3 h5+ Kg5 h6 Nb4 f7 Be7 f8N Ra6 e6 Ra7 h7 Nc2 Ke8 Ra8 Nd7 Bf6 e7 Ba1 Nf3+ Kg6 d3 g1N Rh5 g2 Nbd2 Nb4 Ra5 Nh3 Ra7 g1B d4 Kh5 c5 Ng5 Bh3 Na2 Nf1 Bh2 Be3 Bf4 Bd2 Be3 Be1 Bc1 Ba5 Ba3 Qd8 Rb8 Bb6 Ra8 Qe1 Rc8 Qe4 Rb8 N1d2 f1N Qc8 Ra8 Nb8 Ne3 Nf1 Nd5 Qce6 Ndb4 Qc4 Na6 Qc1 Ne6 Qd1 Nf8 Qdb1 Nh6 Qbe1 Rg8 h8B Nf7 Be5 Rg5 Bg3 Nh7 Kd7 Rf5 e8N Nh8 Nc6 Rc8 Ne3 Re5 Nb8 Ng6 Qh1 Rg5 Nf1 Ne5+ Ke7 Rg4 Nf6+ Kh6 Ng8+ Kh5 Ne1 Rf8 Nf3 Nc6+ Kd7 Rf6 Ke8 Rf8+
5Knb/bN3QBP/6P1/r2b2r1/NRR5/kqQP2NP/2r2rQ1/N4r1n w - - 0 1 legal: proof: f4 h5 c4 d5 cxd5 g5 fxg5 b5 g4 e6 gxh5 b4 Bh3 b3 Bf5 exf5 axb3 Qe7 b4 Qd6 b5 Qd8 Kf2 Ke7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 e4 c5 h3 a5 d3 f4 b6 f5 g6 f3 h6 a4 h7 f4 b7 c4 d6 a3 d7 a2 Ke6 f2 Kf7 f1R e5 c3 e6 f3 e7 c2 e8Q f2 Nd2 Qa5 d8N Ra7 Qde2 Qb6 Rb1 a1R Nb3 R7a5 Bh6 c1B Bg7 Na6 b8N Qd6 Nb7 Qh2 Nd7 Be3 Nb6 Qb8 Na4 Rg5 Qc6 Ra2 Na1 Ba7 b3 Rc2 Qc3+ Ka3 b4+ Ka2 b5 Nc5 b6 Ne4 Qf3 Ng3 Rb4 Bg4 Qfc6 Bf3 Ne2 Bd5+ Qe6 Bd6 Rh2 Nh1 Ng3 Be5 Rc4 Qc7+ Kf8 Qc5+ Qe7 Qb5 Qf7 Qb3 Rg2 Ka3 Rg1 Rd1 Re1 f1R Ree4 Rdd2 Rb4 Rgf5 Rec4 R5f2 Nd8 Rf5 b7 Rdf2 b8Q Rg5 Nb7 Bad4 Qa7 Rfd2 Ke8 Nf6+ Ke7 Ra8 Bh6 Be3 Qc5 Ra5 Kf8 Ng8 Q5d4 Bf6 Qe4 Bh8 Bg7 Rdf2 Qg2 Ba7
3B2RN/8/5r1n/2nR2P1/1k4n1/RN1P1NP1/QqnPK1nr/Q1b1Nnn1 w - - 0 1 legal: proof: e4 f5 exf5 d5 a4 b5 axb5 d4 f6 d3 cxd3 g6 f4 Be6 h3 Na6 f5 Qc8 f7+ Kd8 f6 Kd7 Be2 Nb8 Bg4 Qe8 Bf5 Qd8 Be4 Bg4 Bf5+ gxf5 hxg4 Ke6 Kf2 Kd6 Ke1 Kd7 b4 Kd6 b6 c5 b5 h5 g5 a5 g3 e5 b7 a4 b6 f4 Rh3 e4 Bb2 e3 Bd4 f3 Na3 f2+ Kf1 h4 Nf3 c4 Qb1 e2+ Kg2 f1N Kf2 e1N Ra2 c3 Be5+ Kc5 Rc2 Ra6 Qa1 Qd4+ Ke2 Nd7 b8Q Kb4 b7 Nh6 Bc7 Ng2 Qe8 Ne5 b8N Neg4 Rh1 h3 Bd8 h2 Nd7 Bg7 Rg1 h1N f8R Nhf2 f7 Rf6 Qe6 Nh3 Rg8 Qb6 Ra2 c2 f8N Rh7 Nc5 c1N+ Kd1 Rh8 Ng6 Nb3 Ke2 Rh7 Nh8 Qb7 Nc4 a3 Nce5 Qb5 Rc2 a2 Ne1 Qb8 N5f3 Qe5+ Ne4 Qb2 Rc5 Bf8 Rd5 Nc5 Nc3 Be7 Nb5 Bd6 Nbd4 Bf8 Qb1 a1N Nb3 Nc2 Qa1 Bg7 Ne5 Qc3 Qa8 Rf4 Qf7 Nhf2 Na5 Nfe3 Rd6 Nhf5 N5f3 Rh2 Qfa7 Qd4 Nb3 Nfh6 Rd5 Nh3 Rf1 Qa1 Rh1 Bb2 Qa6 Nh4+ Ng2 Rf6 Rg1 Qa3 Ra1 Bc1 Q8a7 Qb2 Ra5 Nhf2 Nge1 Nf1 Qa8 Ng2 Q6a7 Ra6 Ra2 Nh3 Qg7 Qb1 Qa1 Rf6 Qa3+ Kb5 Q3b2 Kb4 Ra3 Qa2 Qbb1 Qb2 Qba2 Ng1+
1nb1k3/6b1/n1NQ2b1/1qP1P2N/5Knb/1PP3Q1/1r2Q1RR/QBR2qq1 w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 f5 d4 c5 dxc5 a5 fxe5 h6 Bg5 hxg5 g3 f4 g4 Ra6 Nd2 Rf6 Nb1 Rf5 gxf5 Rh4 Bh3 Rh5 Bf1 Rh8 Kd2 d5 h4 f3 Ke3 g4 h5 g5 b3 g3 f6 g4 e6 a4 b6 a3 c3 f2 b7 d4+ Kf4 g2 e4 a2 e7 g3 f7+ Kd7 h6 d3 h7 d2 Bd3 f1Q+ Nf3 g1Q Rh2 Nh6 Rg2 Bg7 f8Q Rg8 h8R Ng4 Rhh2 Qa5 Qe1 d1B Nd2 Qb4 Rc1 a1N Bb1 Nc2 Qf6 Rd8 Qd6+ Ke8 Qe2 Qb5 e5 Qa4+ Ne4 Nb4 Qda6 Qb5 Qa1 Rd2 Nf6+ Kf7 Nh5 Bc2 Qd1 Bg6 Qe2 Nf2 Nd4 Ke8 Nc6 N4a6 Na7 Rb2 Nc6 Nd7 b8Q Ng4+ Rf2 g2 Qc7 Qh1 Qd6 g1B Rg2 Ndb8 Rh2 Qh3 Rfg2 Bf2 Qdd3 Bh4 Qg3 Kd7 e8Q+ Kc7 Qa3 Qg1 Qf8 Kd7 Qd6+ Ke8 Qa2 Bgf6 Qa1 Bg7 Qge1 Qhd3 Q1f2 Qdd1 Qg3 Qdf1+
2q4b/1rq2Q1n/1P1k4/qRrn2nR/n3P3/2QB1P2/1Q1rK2P/1N2R1BQ w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 f5 cxd5 e6 f4 e5 fxe5 f4 Nc3 f3 Ne4 Bg4 Ng5 h6 Qb3 hxg5 Kd1 f2 Kc2 Bf3 gxf3 g4 Kb1 Qh4 Qd1 Qf6 Kc2 Qd8 Kd3 Kd7 e4 g5 b4 c5 e6+ Kd6 b6 a5 e7 g3 e8Q g4 b5 a4 b7 g2 b6 c4+ Ke3 a3 d4 c3 Qea4 a2 Bb5 f1N+ Ke2 c2 Qc4 g3 Qc3 Ra5 Bd3 Rh7 Rb1 a1Q Be3 c1Q Rb5 Na6 b8Q+ Qc7 Qe8 Nc5 Qf7 Nf6 Qdc2 Na4 Q2b2 Bg7 Bf2 Bh8 Be3 Qe7 Bf2 Kd7 d6 Ne3 Rh5 Rc5 d5 Nc2 Be3 Nb4 Bd4 Rg7 Be3 Nh7 Bd4 Kc8 d7+ Kb7 d8R Qc7 d6 Kc6 d7 Nd5 Ra8 Kd6 Ra5 Qc8 Rb5 Qf4 Nh3 g1R Nf2 Rd1 Re1 g2 Be3 Qe5 Bd4 Qe7 d8Q+ Qed7 Qg5 Qdc7 Qgc1 Qa3 Qcb1 Qb4 Q1c1 Qa5 Qca1 Rc1 Nd1 g1N+ Kf2 Nh3+ Ke2 N3g5 Bg1 Ndf6 Qca3 Nd5 Nc3 Rd1 Nb1 Q7d7 Qac3 Qdc6 Qe8 Rb7 Qf7 Q6c7 Qcg7 Nh3 Qg2 N3g5 Qh1 Qa6 Qaa3 Qa5 Qac3 Rd2+
1nNnQ3/1Q6/1P1b1rPr/2r3N1/R3r2q/2NnK1PR/2r2rP1/Q2Bk1N1 w - - 0 1 legal: proof: c4 b5 d4 e5 a4 g5 axb5 d5 f3 g4 Bh6 g3 hxg3 Bg4 fxg4 Kd7 Be3 Bh6 cxd5 Bg7 d6 Ke8 d5 Bf8 Bd4 exd4 Kf2 Kd7 b4 c5 e4 a5 e5 h5 b6 f5 b7 d3 g5 d2 g6 h4 b5 f4 b6 a4 Qb3 d1R Qf3 a3 Qd3 h3 Rh2 c4 Qf3 a2 Nc3 Rh6 Bd3 Rd2+ Nce2 c3 Rf1 a1R Rc1 c2 Rd1 c1N Be4 R1a4 Qa3 f3 Ke3 f2 Bc2 f1R Nc3 Ne7 Qa1 Rdf2 Rd4 Nec6 Bd1 R8a5 Rb4 Raa2 Ra4 Rac2 Rh1 h2 e6+ Ke8 d7+ Ke7 d6+ Kf6 e7 Kf5 e8Q Qh4 d8N Nd3 d7 Rc5 Nf7 Bd6 Ng5 Nd8 Qf8+ Ke5 Qh8+ Rf6 Qf8 R1f2 Qe8+ Ne6 d8N Kf5 Nc6 Nd8 Ne7+ Ke5 Nc8+ Kf5 Ne6 Ke5 Nf3+ Kf5 Re1 h1R Neg5 Rhf1 Ng1 Rf4 Nge2 R1f2 Rh1 Rg4 Rh3 Rgf4 Qf8 Rb4 Ng1 Ke5 Nb1+ Kd5 Qe8 Kc4 Qae5 Kb3 Nc3 Kb2 Qd4 Kc1 Qde5 Na6 b8Q Rg4 Qb7 Nb8 Bf3 Rgc4 Nce2+ Kd1 Nc3+ Ke1 Bd1 Rd4 Qed5 R2f4 Qa2 Rff2 Qa1 Re4+
2nr1RQ1/N3r3/bQn1rK2/BB1P2P1/1rr1R1P1/q1RB2B1/5Pq1/3k1r2 w - - 0 1 legal: proof: h4 b5 d4 f5 a4 c5 axb5 d5 dxc5 g5 hxg5 d4 e3 d3 Nd2 Bg7 Ne4 Bd4 exd4 fxe4 Kd2 Kd7 Kc3 Ke6 b4 Kf5 b6 a5 b7 e5 b5 h5 d5 a4 g3 d2 c6 a3 b6 e3 g4+ Ke4 c7 h4 Rh3 a2 Rf3 h3 Rf8 e2 Nf3 e1R Nd4 h2 Nc6 h1Q Na7 Qd6 Bb5 Nc6 b8Q Qg2 b7 Nge7 Rb1 a1R Rb4+ Nd4 Bb2 Ra4 Qb1 d1R Kc4 Ndc6 Bc3 Re3 Qb3 Rf1 Qb2 Bf5 c8B Kf3 Be1 Ke2 c3+ Bc2 Bf5 Rh7 Bd3+ Kd1 Qc8 e4 b8B Qdg3 Bd6 Q3h3 Bg3 Bb1 Qe6 Rd8 Qg8 Nc8 Kc5 Re7 c4 Re2 Qf6 e3 Bc3 Nb8 Kd4 Rc2 c5 e2 c6 e1R c7 R1e5 Qb6 Rc1 Rc4 Bc2 Ba5 Nc6+ Kc5 Rb4 Re4 Nd6 c8R Ba4+ Bbc4 Bb5 Rc7 Ba6 Rc8 Nb8 Kd4 Rc3 Rc5 Nc8 Rc7 Rb2 Bb5 Rc4+ Ke3 Rbb4 Kf4 R5e6 Rc5 Nc6 Kf5 Re5+ Kf6 Rd4 Rc3 Rdc4 Bh2 Qe3 Bf4 Qc1 Bh2 Qa3 Bg3 R5e6+
B3n1rB/b1q4P/1QBr1Q1K/N1P1N3/5P1N/br2kP2/5bb1/RB2rb2 w - - 0 1 legal: proof: f4 c5 e4 h5 d4 a5 dxc5 f5 exf5 Nf6 a4 Nc6 b4 Ng8 bxa5 Nd4 Ra3 Nf6 Rg3 Nf3+ gxf3 Ng8 Rg4 hxg4 Kf2 Kf7 Kg3 Kf6 c4 e5 h4 b5 a6 d5 c6 g5 h5 b4 c7 b3 a5 e4 a7 e3 h6 d4 h7 e2 a6 e1R Nh3 d3 Na3 b2 Qb3 b1R Nf2 d2 Nd3 d1B Ne5 Be2 Bb2 Bd3 Bh3 Bf1 Qb6+ Be6 c8B Qc7 Bb7 Rd8 a8B Rd6 a7 Bd7 Bc3 Rb3 Bc6 Ke7 f6+ Ke6 f7 Nf6 Bd4 Ne8 Ba1 Be7 Rg1 Rg8 f8N+ Kf5 Nfg6 Ke6 Nh4 Bg2 Bcb7 Bb5 Bc6 Rdd1 Nd7 Bh1 Ng6 Ree3 Bh8 Bb4 Bf1 Rd6 Bd3 Ba6 Rd1 Re1 Bab7 Bb5 a8Q Ba6 Qd8 Bb5 Nb1 Ba3 Qg1 Ba6 Nd2 Bb5 Ra1 Ba6 Kh2 g3+ Kh3 g2 Qb6 g4+ Kh4 g3 Kh5 Bb5 Kh6 g1B Qa5 g2 Ba8 Ba6 Nh4 Ba7 c5 g1B Qb6 Bg2 Ne5 Bf2 Bb1 Baf1 Ndc4 Qb7 Bd7+ Kd5+ Qf6 Kd4 Na5 Ke3 Bc6 Qc7
4b1r1/n3r2k/1Q5b/K2qNP2/n1B1rB2/1p2NP1P/PQRn2N1/2N2Bq1 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 h5 g4 c5 gxh5 f5 exf5 d4 Na3 d3 Rb1 Qd6 Rb4 cxb4 cxd3 Be6 d4 Qd8 d5 Bc8 d4 Kf7 Kd2 g5 h6 e5 f3 b5 h3 e4 h7 Kg7 a6 g4 d6 g3 d7 b3 Kc3 e3 a7 g2 d5 b2 d6 b1Q Qd4+ Nf6 Qb6 e2 Rh2 e1N Bf4 Rg8 Nc4 Nd3 Ne3 Nb2 Kb4 Na4+ Ka5 b4 Ne2 g1R Nc1 b3 Rc2 Ne4 h8N Rg4 Nf7 Kh7 Ne5 Qg5 d8Q Bh6 d7 Nd2 Qf8 Qd8 Qa3 Rh4 Qb2 Nc6+ Kb5 Rb8 a8B Na7+ Ka5 Rhg4 Bc6 Rb7 Bcb5 Rc7 Bfc4 Bb7 Bf1 Bc6 Bbc4 Qa8 d8N Re7 Ne6 Be8 Nc5 Rh4 Nc5d3 Qd8 Ne1 Qa1 Bg5 Re4 Bf4 Qd6 N1g2 Qc6 Ne2 Qd1 Nc1 Qd5+ Bb5 Qe1 Bc4 Qg1 Bf1 Qb7 Bbc4 Qd5+
1br4B/1R3P2/1Nqk1b2/1qn2QNR/1QQp4/1rP5/K1bPnNP1/r5N1 w - - 0 1 legal: proof: e4 c5 a4 g5 b4 b5 bxc5 f5 exf5 a6 h4 Qc7 hxg5 Qa5 axb5 Qc7 b6 Qd8 Bb5 axb5 f4 h5 b7 d5 f6 Kd7 f5 e5 g6 h4 f7 e4 f6 b4 c6+ Kd6 g7 e3 c7 h3 Ra5 b3 Rh2 e2 Ra7 b2 Nc3 b1R Bb2 Nh6 g8Q Nd7 b8Q Nc5 Rb7 Bg7 f8N Qd7 Nh7 Nf5 Ng5 Raa1 f7 Bd4 Qg6+ Bf6 Qc1 Qb5 Nd1 Nd4 Nf2 Bf5 Rh1 Be4 Qf5 h2 Bc3 Rb3 c8N+ Kc6 Nb6 Rc8 Qbf4 Bd3 Q4g4 Kd6 Qh4 Nde6 Qb4 Nf4 Bd4 Be4 c3 Bc2 Qc4 Be7 Bh8 d4 Qb1 Bf6 Nd1 Rba3 Qbb4 Rb3 Kf2 e1B+ Kf1 Nd3 Ke2 Bg3 Nf2 Nc1+ Ke1 Be4 Kd1 Bge5 Qh3 Bg6 Qf5 Ne2+ Kc2 Qc6 N1h3 Bg3 Rf1 h1Q Ng1 Qh5 Re1 Nc1 Re4 Ne2 Rh4 Qhf3 Rh2 Qb5 Rh7 Qfc6 Rh5 Rba3 Kb2 Bge5 Qf4 Bc2 Qf5 Bg3 Rb8 Ke7 Rb7+ Bc7 Rh2 Kd6 Rh5 Bb8 Re7 Re1 Rb7 Rb3+ Ka2 Ra1+
1N1N4/Br2P3/3pqbBq/1P1QNR1K/3PP3/nbN1Q3/qk3n2/n3Q1r1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 gxf5 c4 Ra4 c3 Rg4 hxg4 bxc3 Nc6 c4 Nb8 c5 Qf6 Ba3 Qg5 Bc1 Qd8 Kf2 Ke7 Kg3 g5 c4 a5 h4 a4 e6 Kf6 e7 Ke5 f6 Kd4 h5 a3 h6 a2 c6 a1N f7 d6 c5 Be6 c7 Bg7 c8Q Qa5 f8N Qa4 h7 Nf6 c6 Ra7 c7 Rb7 Qe1 Qa2 Rh5 Rg8 h8N Bb3 Qe6 Nbd7 c8Q Nb6 Qc6 Nc4 Nc3 Na3 Nf7 Bh8 Nd8 Ne4+ Kg2 g3 Kf3 g2 Kg4 Be5 Nd7 Bf6 Nb8 Rg6 Rh8 Rg7 Rf8 Nf2+ Kh5 g4 Qf3 g3 Qee3+ Kc4 Qd5+ Kb4 Nf3 g1Q Bh3 g2 Ne5 Qh2 d4 Qf4 Bf5 g1Q Bg6 Qg2 Rf7 Qge4 Bb2 Bh4 Rf5 Bf6 Nef7 Qe6 Ne5 Bc4 Bc1 Kb3 Bb2 Kc2 Bc1 Bb3 Bb2 Nb1 Ba3 Rg8 Bc5 Kb2 Ba7 Na3 Qd3 Rg7 e4 Qd2 Qde3 Qc1 Bh7 Rg1 Bg6 Qd2 Qh3 Qf4 Qhe3 Qh6+
1br2r2/1NPk2P1/b4p2/2Bnb1QP/1n2q2N/1KN4R/3QNPqR/6qR w - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 e5 axb5 g5 d4 h5 dxe5 h4 g3 g4 Qd3 h3 Qh7 Na6 Bxh3 Nb8 Bf1 Nh6 h4 Ng8 Bh3 gxh3 Kd2 d5 Kc3 a5 e4 d4+ Kb3 f6 c4 d3 h5 h2 b6 d2 g4 Bd6 c6 Qd7 g5 Be7 e6 Na6 b7 Bb4 b8R Ba3 c5 Bb4 e5 d1Q+ Qc2 Be1 g6 Qg7 e7 Ra7 c7 Qd6 c6 Bd2 Nc3 Qd3 Ne2 Bf4 Be3 Qf8 g7 Qd1 Bc5 Qg1 Qd2 Ra8 Ra3 Bg3 Rb4 Qg2 Rh4 Nb4 Rh3 Ba6 c8N Bf4 Raa1 Rb8 Rag1 Qe4 Rg2 a4+ Kb2 a3+ Kb3 a2 c7 a1B Nd6+ Kd7 e8N Ne7 Nb7+ Ned5 Ned6 Be3 Nf5 Rc8 Nh4 Qe8 Rgg1 Q8g6 Rg2 Rhf8 e6+ Ke8 e7 Kd7 Rb1 h1Q Rgh2 Qhg2 Rbh1 Q6g5 Bd6 Ba7 Bc5 Q5g4 Qg5 Bb8 Qd2 Rcd8 Qg5 Qg1 Qd2 Qg4g2 e8Q+ Kc8 Qe5 Kd7 Qeg5 Rc8 Nb5 Bd4 Nbc3 Be5
1NR2bq1/Pb2bqk1/4Qqp1/P2n1P2/3QB3/1Q1R1P2/2K1Q3/RN2nrr1 w - - 0 1 legal: proof: b4 a5 e4 h5 g4 f5 exf5 b5 gxh5 d5 c4 Nf6 cxd5 Ng8 bxa5 b4 a4 Na6 Bb2 Nb8 Ba3 bxa3 d4 Kf7 Kd2 c5 h4 e5 f3 c4 h6 e4 h7 c3+ Kc2 g6 h5 e3 a6 a2 a5 e2 d6 e1Q d5 Qd7 h6 Qb7 d7 Qe8 d8R Nc6 d6 Nf6 a7 Nd5 d7 Nf4 Bd3 Ng2 Qe2 Rb8 Be4 Ne7 Rh4 Qa8 Rf4 Ba6 Rc8 Nd5 d8Q Bb7 Qd7+ Kf6 Qa4 Qf7 Qb3 Be7 Qec4 Rd8 Ne2 Rd7 Nd4 Rd8 Kd3 c2 Nc6 c1B Kc2 Bca3 Qe2 Bf8 Rh4 Bae7 Rh1 Rd7 Rd1 Rd6 Rd3 Re6 Nb4 Rd6 Na6 Rc6+ Kd1 Rc1+ Kd2 Rg1 h8Q+ Qg7 Qg8 Qf7 h7 Rf1 Re8 Rc8 Nb8 Rcc1 Rc8 Rg1 Nc3 Rcd1+ Kc2 Rdf1 Rb1 a1Q h8Q+ Kg5 Qf6+ Kh5 Rc1 Kh6 Nb1 Qd4 Qd6 Qdf6 Qc5 Qh7 Qe6 Kg7 Qd4 Qg8 Nc6 Qb8 Re1 Qc7 Red1 Qd7 Nb8 Qe8 Nd2 Qef7 Ra1 Kh8 Nb1 Kh7 Qdc4 Kg7 Qd4 Ne1+
Nr2N3/N1QbBn1q/4B3/2P2P1r/bQ3K2/1RPrB1B1/k4p1P/1rr2n2 w - - 0 1 legal: proof: b4 c5 f4 b5 a4 f5 axb5 h5 d4 e5 fxe5 f4 dxc5 f3 g3 Be7 Ra6 Bg5 Rg6 Bh6 Rg4 Bf4 gxf4 hxg4 Kf2 Ke7 Ke3 Ke6 c3 d5 b6 g5 b7 a5 b5 f2 b6 d4+ Ke4 a4 e3 d3 Nf3 g3 Bh3+ g4 Nfd2 g2 Na3 g1R Ndc4 d2 Nb5 a3 Na7 a2 Qb3 d1B Qb4 Nd7 b8B a1R b7 Nb6 Bd6 Rh5 b8B Rb1 Be7 Nd5 Nb6 Nh6 Bc7 Rb8 Na8 Ba4 Bcd6 Rd1 Re1 Kf7 e6+ Kg8 Re2 g3 Rb2 g2 Rb3 g1R Kf3 Qe8 e4 Qg6 e5 Bcd7 Be3 Nf7 Bg5 Nf6 Ra3 Kh7 Rb3 Ne4 Bh4 Ng3 e7 Qf5 e8Q Kg6 e6 Rdc1 e7 Rgd1 Bg5 Nf1 Qc8 Qc2 e8N Qd3 Bg2 Kf5 Bge7 Qc2 Qc7 Ke6 Bh3+ Kd5 Rb2 Qh7 Bf5 Rd2 Kg4 Rd4 Be6+ Ke4 f5 Kd3+ Bdf4 Rd5 Rb3 Kc2 Bg3 Rd3 Qc4 Rdd1 Kf4 Rd3 Ra3 Kb2 Rb3+ Ka1 Qb4 Ka2
r1Nn2n1/Q3b1nr/1P2RpQQ/3P4/1k4PQ/2NBb3/P3nB1K/q4n1B w - - 0 1 legal: proof: f4 d5 c4 g5 b4 e5 fxe5 a5 bxa5 b5 h4 b4 hxg5 Ne7 Na3 Ba6 Rb1 Bb5 cxb5 Ng8 Rb2 Bd6 Rc2 Bf8 Rc4 dxc4 Kf2 Kd7 Kg3 c5 d4 h5 e4 b3 g6 h4+ Kh2 h3 g4 c3 b6 Kc6 a6 c2 e6 b2 g7 b1N e5 f6 a7 c4 e7 c3 e8B+ Qd7 e6 Rh7 e7 Na6 Nc4 Kb5 Qd2 Rh6 Bd3 Nb8 Ne2 Kb4 Nd6 Nc6 Nc8 Rh7 Re1 Nd8 Qh6 Nd2 d5 Qf5 Bg6 Qf1 e8Q Be7 Bb2 c1N Bge4 c2 Nc3 Ne2 Qeh5 c1B Bh1 Ng3 Re5 Nf5 Re6 Qd1 Qh4 Nf1+ Kg1 h2+ Kg2 Rb8 a8Q Be3 Qa7 Qa1 Bc1 Ra8 Bd2 Nd4 Be1 Ne2 Kh3 B3c5 Bf2 Be3 Bhe4 h1N Kg2 Nd2 Kh2 Nhg3 Bh1 Nf5 Q6h5 Ngh6 g8Q Ng7 Qf8 Ng8 Qg6 Nh5 Qfh6 Nf1+ Kg2 Ng7 Kh3 Nd2 Kh2 Nf1+
3n1r2/B2P1pR1/2bbb3/2PQ1B1P/5Nr1/r1QQ3r/3PN1Bk/2nBK2q w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Be6 fxg5 Bc8 b4 h5 Qxh5 c5 b6 Bb7 b5 Bg7 Ra4 Bf8 Qh7 Bc8 Rb4 cxb4 g4 Kd7 h4 Kd6 c4 Ke5 b7 Kf4 b6 Kg3 g6 a5 d6 e5 g5 a4 g7 e4 g6 e3 Nh3 b3 Rg1+ Kh2 Bg2 a3 Bb2 a2 Bd4 a1R Nf4 R1a3 Nc3 b2 Nce2 Nd7 b8Q b1B b7 Ne7 g8B Be4 g7 Nc6 Qc7 Nc5 b8Q Be6 d7 Bd6 Qbb7 Nb3 Ba7 Nc1 c5 Qe7 Qa5 Rf8 Qc3 Nd8 Qd5 Qf6 Qhf5 Qh6 Bh7 Bf3 Qdd3 Bc6 g8B Qh5 Qfd5 Qh6 Ng3 e2 Bf5 Qh5 Bgh7 Qh6 Kf2 e1R Nge2 Rhg8 Bg4 Rd1 B4f3 Rg4 Bf5 Re1 Ng3 Re4 Bd1 Re3 Nge2 Rh3 Ke1 Qh8 Qcc4 Qa1 h5 Qb1 Qdc3 Qe4 Bf1 Qh1 Q4d3 Rgh4 Rg7 Rg4 Ng3 Kg1 Bg2 Re8 Qd3c4 Rh8 Q4d3 Rf8 Nge2+ Kh2+
k1nn2RK/PN1b2bP/2p5/3q4/Q1RB3Q/3qN1qN/PrP2Q2/qr1Q4 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f5 bxa5 Bd6 e4 Ba3 exf5 Bf8 f4 g5 g4 h5 Bh3 Nh6 fxg5 Nf7 g6 Nh6 g5 Ng8 Bg4 hxg4 Kf2 b5 Kg3 d5 Kf4 Kd7 h4 Kc6 e6 Kb7 Ke5 d4 e7 b4 e8N c6 f6 g3 g7 g2 f7 d3 g6 d2 a6+ Ka7 h5 b3 h6 b2 h7 Bb7 Nd6 Qc7 Nc3 b1Q Bb2 Qd8 Rh4 Qd7 Nh3 g1Q Nd5 Qg2 Ne3 Nh6 Kf6 Bc8 g8Q Qg3 Nb7 Qd3 g7 Bd7 Rc4 Qd5 Bc3 Qb2 Rb1 Qa1 Rb5 Qd3 Rg5 Qd5 Qb1 d1Q Bd4+ Bc5 f8Q Nf7 Qb5 Qd3 Qa4 Nd8 Qd6 Bb6 Qf7 Re8 g8Q Bc5 Nd1 Re1 Ne3 Rb1 Kg7 Rb2 Qf2 Rb1 Bf6 Bd4 Qdf4 Bc3 Qh4 Be5 Qf7 Rb2 Kg8 Rb1 Bh8 Bg7 Qg1 Rb2 Qd1 Bf6 Na5 Rb1 Nb7 Be8 Na5+ Nd7 Bg7 Rab8 Kh8 Ka8 a7 R8b2 Nb7 Nb6 Rg6 Bd4 Qf2 Nc8 Bf6 Bd7 Rg8 Bc5 Be5 Bf8 Bd4 Bg7+
BQNrbQ2/2KQ3N/5br1/Pq4P1/kp3nN1/b1b2PP1/Q4R1b/1r3R2 w - - 0 1 legal: proof: e4 d5 h4 a5 b4 g5 bxa5 d4 hxg5 d3 cxd3 Bf5 d4 Bd7 d5 Bf5 d6 Bc8 d4 f6 d7+ Kf7 e5 Na6 d5 Nc5 Bf4 Ne4 Bh2 Nd6 exd6 Rb8 Bg3 Ra8 Be5 fxe5 Ke2 h5 Kf3 b5 Ke4 c5 a4 b4 f3 c4 a6 c3 a7 h4 a5 c2 Nh3 c1B Ra2 Rh6 Ra3 Qb6 d8Q Bg7 d7 Rg6 d6 Ke6 Qd3 Bf6 Nd2 Qb5 Nf2 h3 Qc2 h2 Rb3 Ba3 Qa2 Rb8 Rg1 h1R a8N Ba6 Qf8 Rd8 Nb6 Bc8 Ke3 e4 Kf4 e3 Bd3 e2 Rf1 e1B Nde4 Bec3 Ng4 Bb7 Rf2 Rb1 Nc8 Kd5 g3 Kc6 Bc4 e5+ Kf5 Ne7+ Ke6 Nd5 Rbb2 Rg8 Rf1 Rg6 Bd3 Bd4 Rg2 Bg1 Rgf2 Bh2 Bc2 Bh8+ Nef6 e4 Ke5 e3 Be4 e2 Ke6 Rg7 Nh7 Kc5 Ke5 Nf4 Bc6 Ba6 Ba8 e1B Qfg8 Rf8 d8Q Rg6+ Qg7 Bb7 d7 Bc6 Qe8 Bd2 d8Q Rg8 Qef7 Be8 Qb7 Rf8 Qb8 Rg8 Qd7 Bc3+ Kf5 Nd3 Qh6 Bhf6 Ke6 Rh8 Qb2 Kc4 Kd6 Nf4 Qf8 Rhg8 Qd2 Kb3 Qa2+ Ka4 Kc7 Bf7 Qc5 Rd8 Qf8 Be8
1qQNk1NK/2B3Q1/3bPP2/1N3PnP/1Rprn3/Rb4R1/b1b3Nb/7n w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 f5 g4 b5 gxf5 b4 c4 Ra7 Bh3 Rb7 Bg4 Rb5 cxb5 hxg4 Kd2 c5 Kd3 d5 a4 g5 e4 d4 h4 g3 f4 b3 e6 b2 b6 g4 e5 c4+ Ke4 d3 a6 d2 b7 g2 f6 g3 Kf5 Qd6 Kg6 Rh7 a5 Qa3 e7 Rh5 a7 Qc3 a8N Nd7 b8R Rh7 a6 Bg7 a7 Qa3 h5 Qc3 Rb4 Qd4 Nc3 Qd6 Nf3 g1B Rh3 g2 Nb5 Nc5 Ra3 Qb8 Rg3 Bh2 Nh4 g1N Qg4 d1B Ng2 Nh6 Be3 Ne4 Bb6 b1B Bc7 Nh3 Qg5 Kd7 e8N Nf5 Kf7 Ba4 Kg8 Bf8 Qg6 Rf7 Kh8 Ba2 Qg7 Bc5 Ba5 Be7 Nac7 Nhg5 Ne6 Bd6 Bc7 B4b3 Nd8 Nh6 a8Q Ng4 f5 Bb7 Qa6 Ngf2 Qa8 Nh1 Qa6 Bf8 Ned6 Bd5 Nc8 Ke8 e6 Bd6 Qb7 Rd7 Ne7 Bc6 Qc8 Bc2 Na7 B6a4 Ng8 B4b3 Nb5 Bf4 Ne7 Rd4 Ng8 Bd6
Q5b1/r1PQq1P1/5nQ1/1NPB1R2/1B1Kp1b1/RB2Pn1B/3n3b/5nkn w - - 0 1 legal: proof: d4 a5 f4 b5 a4 g5 fxg5 c5 dxc5 Ra7 axb5 Ba6 b4 Bc8 b6 Ra6 b5 Ra8 g6 Na6 h4 Nc7 g4 Rb8 g7 Bb7 Nc3 Be4 Nd5 Na6 Nb4 axb4 g5 Bf3 Rb1 Bc6 Ra1 Rc8 Be3 Nb8 Bc1 Bb7 h5 Rc6 Qd6 Ba6 Qd1 Rg6 hxg6 Bc8 Kf2 d5 Ke3 Kd7 c4 Ke6 c6 Kf5 c5 Kg4 c7 Kg3 b7 e5 b6 h5 Bb2 f5 Bc3 b3 Rh2 b2 Bh3 b1N Ra5 f4+ Kd3 h4 e3 d4 Ra7 f3 Raa2 f2 Ra1 f1N Bb4 Qe7 Nf3 Nc6 b8Q Nf6 g8B Nbd2 g7 Be6 g6 Rh6 Rh1 Kf2 b7 Ba2 Bd5 e4+ Kc2 d3+ Kc3 Ne5 g8B Bg7 Nd4 Nef3 Qa8 Bh8 Rh2+ Kg1 b8Q Bg7 Qe8 Bf8 Bf5 h3 Rf2 h2 Nb5 h1N Bh3 Rh8 Bge6 Bh6 g7 Bf4 Bb3 Bh2 Bed5 Rf8 Qec6 Rb8 Qd7 Rb7 Qb1 Ra7 Qb2 Ng5 Rf5 Ngf3 Qa3 Nb1+ Kc4 d2 Qa6 d1B Q6c6 Nbd2+ Kc3 Ne1 Kd4 Bg4 Qa6 Nh7 Qg6 Nf6 Bc2 Bc4 Ra3 Bb3 Bc6 Be6 Bd5 Bg8 Bcb3 Nef3+
R3b1K1/3RrQ2/5P1b/P1N2QrP/B3pR2/n1Q1Pbk1/3q1N2/2rR2qb w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 f4 g4 Ra6 Bb2 Ra7 Bf6 Ra8 Bh4 g5 Bg3 fxg3 h4 Nh6 hxg5 Ng8 Nh3 h5 Ng1 h4 Rh2 Nd7 Rh3 Ndf6 Rh1 Nh5 gxh5 Be6 Qa4+ Bd7 Qd1 Bc8 d4 Kd7 Kd2 Kd6 Ke3 e5 Ke4 b5 f4 c5 a4 c4 e3 g2 g6 c3 f5 c2 g7 c1R f6 b4 a6 b3 a5 h3 a7 h2 Qc2 b2 Ra4 Ne7 g8Q Be6 Bb5 Rc8 a8R Rh7 Qc3 Rg7 Nd2 Bd7 Nh3 g1Q Nf2 Rc6 Qf7 Rg5 Nb3 Nf5 Nc5 Be8 Rb4 Ra6 Ba4 Bg7 Rc4 Ra7 Rb4 Qg3 Rd1 Qg1 Rc4 Re7 Rb4 Nh6 Rc4 Ng4 Rb4 Rg6 Kf5 h1B Rc4 Rh6 Kg5 b1B Rb4 Rh8 Rc4 Ba2 Kg6 Rg8 Rb4 Bc4 Kh7 Be2 Rc4 Bef3 Rb4 Bh6 Rc4 Rg5 Rb4 Bg7 Kg8 Qb6 Rc4 Qb2 Rb4 Bb5 Rc4 Qd2 Rb4 Kc7 d6+ Kc6 d7 Kd6 d8R+ Bd7 d5 e4 Rb1 Ne5 Rf1 Nc4 Rb7 Qd4 Rba7 Ke5 d6 Be8 d7 Kf5 Rb7 Ra1 Rbb1 Na3 Rbd1 Qe5 Ra7 Rb1 Rda8 Rc1 d8Q Qeh2 Rad7 Qd6 Qc8 Qd2 Nfd3 Kg4 Rf2 Be2 Rf4+ Kg3 Nf2 Bef3 Qa6 Rd5 Qae6 Rg5 Qf5 Bh6+
1r2q1N1/PB3K2/7P/1n1PPQ1B/1p1bb2R/NN1Bk3/1B1bb1n1/5Qqq w - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 h5 a4 f5 g4 a5 bxa5 d5 c4 f4 cxd5 Ra6 Ra3 Rah6 Rg3 Rf6 Rg2 Rf5 gxf5 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 Ke7 e4 c5 h4 g5 d4 g3+ Kf3 b4 Kg4 f3 e6 Kd6 e5+ Ke7 h5 f2 f6+ Ke8 Kf5 c4 Kg6 g4 a6 g2 e7 Kd7 h6 c3 a7 g3 a8B c2 f7 Na6 a5 Nf6 d6 Ke6 e8B Nh5 d7 Nc7 a6 Bb7 a7 Kd5 Bb2 Ke4 Nf3 g1Q Nfd2+ Ke3 Bd3 c1B Nb3 f1B Rh4 g2 Na3 Be2 Qf1 Bc5 f8Q Nb5 Kf7 Be4 d5 Bd2 Bb7 Qh1 Qf5 Qc8 d8N g1Q Nc6 Nf4 Ne7 Ng2 Ng8 Qd8 Qe7 Qa8 Qef6 Bd4 Qf1 Qc8 Q6f5 Qe6+ Kg7 Qc6 Bh5 Qc8 Kf7 Qc6 Nf6 Rb8 Ng8 Qe8+
B5nb/pQr3B1/4K2P/B2N2rq/1P1n2PN/1R1nP1k1/3Q2n1/Qnn4Q w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 Rh6 gxh5 Rh7 d6 Rh8 d4 g5 b4 g4 f3 g3 d5 Bg4 fxg4 Na6 Ra3 Nb8 Rd3 Qh4 Rd2 Qd8 Rd4 exd4 Kd2 Kd7 Kd3 c5 Kc4 f5 h4 f4 h6 f3 h7 g2 b6 d3 b7 d2 h5 f2 h6 Na6 b8Q Qa5 Na3 Bg7 Nf3 g1N Bg2 f1N Nh4 Nf3 Bb2 Nd4 Nb5 Be5 Qb6 Rc8 Nc3 Rc7 Qb7 Bg7 Rh3 Ne3+ Kd3 c4+ Ke4 Qb5 Qh1 d1N Bf3 Nc5+ Kf4 Nf6 Ke5 Rg8 h8Q Ng2 Be4 Ncb3 Rd3 Nf2 e3 Nd2 Ba1 Nb1 Bb2 Ke8 d7+ Kf7 d8B Qc5 Nf5 Kg6 Nh4+ Kg5 Ba1 Qb6 d6 Qb5+ Nd5 c3 d7 c2 Rb3 c1N Kd6 Nfd3 Bc3 Rc8 Ba5 Rc7 d8Q Qe8 Qd7 Qh5 Bf3 Rgc8 Be4 Ng8 Bf3 Rc5 Be4 R8c7 Ba1 Nf3 Ke6 Bb2 Qc3 Rb5 Qce1 Bh8 Bg7 Rbc5 Qa4 Rb5 Qa1 Nd4+ Kd6 Rbc5 Qd2 Nce2 Nc3 Rc4 Qc6 Nec1 Nf5 Nf3 Ke6 Rc5 Qb6 Rb5 Ba8 Rbc5 Qb7 Nd4+ Kd6 Re5 Nd5 Qh3 Nfe7 Kh4 Ng6+ Kg3 Ndf4 Na2 Nd5 Qh5 Nh4 Nac1 Qdd1 Nc2 Qd2 Rg5 Ke6 Nd4+
2rb4/1bkBb2R/2NR2N1/Nr3nP1/2bRQ3/P3QrP1/1rP2p2/2Kq2R1 w - - 0 1 legal: proof: d4 a5 b4 f5 bxa5 g5 e4 c5 exf5 Qc7 dxc5 Qd8 f4 Bh6 f6 Na6 f5 Nc7 Bf4 Nd5 g3 Ne3 h3 Ng4 hxg4 gxf4 Qd6 Bg7 Qd1 Bf8 Kd2 e5 a3 h5 a6 b5 c6 d5 g5 f3 a7 d4 c7 Kd7 f7 e4 f6 f2 Nh3 d3 Bg2 b4 Rg1 h4 Qf3 e3+ Kd1 e2+ Kc1 e1B Nd2 b3 Qb7 Be7 f8R Rb8 a8R Nh6 f7 Nf5 Nf4 h3 Nc4 h2 Qe4 h1B Ra7 Bb7 c8N Kc7 Bh3 Ba5 Ng6 Qd6 Qe3 Bd5 Rd8 Qd7 f8Q d2+ Kb2 d1R Qe8 Rd2 Rad1 Rd3 Kc1 Be6 Qe4 Rf3 Rd4 Qd5 Rd6 b2+ Kd1 Bb6 Na5 b1R+ Kd2 Rb2 Kc1 Bc5 Bg4 Bd8 Nce7 Bg8 Nec6 Rc8 Rf6 Bce7 Rd6 Rh4 Bh3 Rhf4 Bg4 Rfb3 Qe3 Rb5 Bh3 Rf3 Qe4 Ng7 Bd7 Nf5 Qe3 Bf8 Q8e4 Bfe7 Ra4 Qd3 Rad4 Bc4 Nce5 Kb8 Ng4 Ba6 Be6 Bf6 Rh7 Bb7 Bd7 Bfe7 N4e5 Kc7 Nec6 Qd1+
2n2b2/R1rr2kB/NKBQ4/1b2Rb2/PP2Pp2/q2rn1p1/1P1BR3/2Q3B1 w - - 0 1 legal: proof: f4 g5 fxg5 e5 d4 b5 dxe5 b4 c3 Ba6 cxb4 Bc8 g4 h5 g6 Qe7 g5 Qf6 Nd2 Qd8 Nc4 a5 Be3 a4 Ba7 Bb7 Ne3 Bc8 Ng4 hxg4 Qxa4 Rh3 Qd1 Rh8 Kd2 f5 Kd3 d5 Kd4 c6 e4 g3 h4 f4 e6 Ba6 g7 Nf6 g8B Be7 h5 Kf8 g6 Nbd7 h6 Qe8 h7 Ne5 Bb5 Neg4 Rh2 Rd8 Nh3 Kg7 Re2 Bf8 e7 Ne3 Kc5 d4 Qc1 d3 Nf2 d2 Kb6 d1B Nd3 c5 Bc6 c4 Nc5 Bb5 Na6 c3 a3 Qf7 e8R c2 Re5 Qb3 Ra2 Rd7 Ra1 Kh6 g7 Qd3 Be6 Qc3 Bf5 Ng8 Bg6 Ne7 g8Q Qd3 Qd5 Kg7 Qd6 Rg8 a4 Qa3 h8B+ Kh6 Bh7+ Rg6 Rf2 Bg4 Re2 Bf5 Bf6 Qb3 Ra3 Qa2 Rc3 Qa3 Bb7 Rg5 Rc7 Rh5 Bc6 Rh2 Re1 Rd2 Re2 Rd1 Rd5 Rd3 Bc3+ Ng6 Bd2 Kg7 Re5 Ne7 Qb1 c1R Qa1 Rcc3 Qc1 Nd1 Kb7 Rc4 Bg1 Ne3 Kb6 Rc2 Ra7 Rc5 Bd5 Rcc7 Bc6 Nc8+
8/2Kn4/pQ4Pn/1q1bBN1P/np2rPRQ/k1r2R1B/2r2PQ1/2R1R2b w - - 0 1 illegal: No proof kernel
bB2nn1Q/B1Q1Kr1B/3P3q/4p3/PN1RN1b1/1qr1Q1p1/2Q1PbP1/6k1 w - - 0 1 illegal: Other
8/b2npP1p/1bR2QB1/rkB2q2/4QBnb/P4PQ1/1KN2P2/R3q1Br w - - 0 1 illegal: No proof kernel
Q1n1N3/K1P1Qq2/1R2r1bp/N2q1N1n/p6P/P3R3/1b1RP3/NB1r1nk1 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 b5 c4 d6 cxb5 Be7 c6 Bf8 Ba3 Qa5+ Bb4 Qd8 Bc5 dxc5 Kf2 Ke7 Ke3 Ke6 h4 Kf5 g4+ Kg6 a3 f5 e6 a5 b6 c4 b7 a4 c7 c3 e7 c2 e8N c1N Bh3 h6 Nd2 Nd3 Ngf3 Ra6 Nc4 Nf4 Qd7 Nh5 Kd4 f4 Rad1 Ngf6 Ne1 f3 Na5 f2 Rd2 f1Q Nc2 Ne4 Na1 Nd6 Kc5 Qf7 Qe7 Nc6 b8R Nd4 Rb6 Nf3 Rhb1 Be6 R1b3 Nh2 Re3 Bf5 Bg2 Qa8 Be4 Bg7 Bb1 Qd8 Kc6 Nf1 Kc5 Bb2 Kc6 Nc4 Kb7+ Qd6 Ng7 Rd8 Ne8 Rd7 Kb8 Kh7 Kb7 Qd5+ Kb8 Nd6 g6+ Kh8 g7+ Kh7 g8N Kg6 g5 Bc2 Rb4 Kf5 Rb6 Kf4 g6 Bf5 g7 Bg6 Rbb3 Rb6+ Ka7 Rc6 Rb6 Rd8 Re6 Kg3 Re3+ Kf2 Qe5 Rc8 Ne7 Kg1 g8Q Rc1 Nf5 Rd1 Qe7 Rb8 Rc6 Rb4 Rb6 Re4 Nf6 Re5 Qa8 Re6 Ne8 Nc8+
3n1nq1/1QpRBbN1/1r1Q4/R2BR1P1/q2rp3/P4B1P/2k1bPq1/3R3K w - - 0 1 illegal: No proof kernel
kn1r1rB1/P3q3/1K1P1Bq1/1Q3B2/1NB3pr/N1b3NP/2PRnp1b/1Q6 w - - 0 1 legal: proof: e4 d5 exd5 h5 a4 c5 b4 e5 g4 a5 bxa5 e4 gxh5 e3 f3 Bh3 Ra2 Bc8 Rb2 Bf5 Rb4 Be4 fxe4 cxb4 Ke2 Kd7 Kd3 Kc8 Kc4 g5 Kb5 f5 d4 f4 d6 b6 a6 e2 h3 e1B a5 b3 d7+ Kc7 e5 g4 d5 f3 h6 b2 h7 f2 a7 Kb7 e6 Ba3 a6+ Kc7 e7 Nf6 e8B Qc8 d8N Nh5 Bg6 Ba5 Bf5 Bc3 Bg5 Qe6 Bf6 Ng3 Ne2 Qe7 Nc6 Bd6 Na3 b1R+ Nb4 Rf8 Qd3 Rd1 h8Q Bf4 Qh7 Rh8 Qg7 Rh4 Qh6 Bfe5 Qc1 Rd2 Qb1 Bd6 Nf4 Ne2 Nh5 Bh2 Ng3 Rd1 Ka4 b5+ Ka5 Nd7 Rg1 Rf8 a8B Nb8 a7 Rd2 Bc6 Rd1 Bcd7 Kb7 Bde6 Ka8 Bg8 Rd2 Kb6 Rd1 Na6 b4 Qb5 b3 Nb4 b2 Rh1 Nd4 Bc4 Ne2 Rg1 Rd4 Rd1 Rd3 Qc1 b1Q Rd2 Qb2 Qb1 Qc1 Rd1 Qg5 Rd2 Qg6 d6 Re3 Bgf7 Re6 Bg8 Rd8 Bg7 Rf6 Bh8 Rf7 Bf6 Rff8
1b3rQ1/QN5B/2P1np2/4pP1k/RKPrP3/2QN4/1nr2rq1/R4bNN w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 d5 gxh5 b5 a4 c5 axb5 d4 c4 Qd5 Bb2 Qd7 Bc3 dxc3 d4 Qc7 dxc5 Qd8 h4 g5 f4 e5 h6 g4 b6 g3 h7 c2 b7 c1R h5 g2 a6 f6 a7 Kf7 c6 Bg7 h6 Kg6 Ra4 Qb6 Kd2 Qf2 Qc2+ Bf5 Kc3 Qf3+ Kb4 Qg4 Nd2 Qg3 Qc3 Rc2 Ne4 Ne7 Nf2 Nd7 b8Q Bh3 Qg8 Rf8 a8Q Nc8 Qa7 Ncb6 e3 Qg4 Bd3+ Kh5 Bf5 Nc5 e4 Ne6 Bg6+ Kh4 f5 Kg5 Ne2 Rd8 Rha1 g1R Nh1 Rf1 Ng1 Rd3 Qe8 Rg8 h8N Qg2 h7 Rf8 Nf7+ Kh4 h8N Rd4 Nd8 Rff2 Bh7 Kg4 Ndf7 Kh5 Ng6 Bh6 Nd6 Be3 Ra5 Na4 Nb7 Nb2 R5a4 Bg4 Qd8 Be2 Qda8 Bf1 Nf4+ Kg4 Nd3 Kh5 Qa5 Rdd8 Qc7 Ba7 Qg7 Rd5 Qg8 Bb8 Qa7 Rd4
2Nn3k/pn3pbP/q1rB1P2/2b2Q2/Q2B2r1/2P1RrrP/2BR4/2K1BR2 w - - 0 1 legal: proof: b4 d5 e4 c5 bxc5 b5 exd5 h6 h4 b4 Nc3 b3 Ne4 Qa5 Ng5 Bh3 gxh3 hxg5 axb3 g4 b4 Qb6 b5 Qd8 f4 g5 d4 e5 Kd2 e4 b6 g3 f5 g4 c6 g2 h5 g3 h6 Bd6 b7 Kf8 c7 Qc8 h7 Kg7 c3 Qe8 c8Q Nh6 Ne2 g1B Nf4 g2 Ng6 Qe6 Bd3 Rd8 Qa4 Qe7 Bc2 Bc7 d6 Rg8 d7 Nc6 d8R Qd6 d5 Bc5 b8B g1R Ne7 Rg4 Re1 Kh8 Re3 Qg6 Kd1 Be5 d6 Bg7 d7 Qe6 f6 Nf5 Be5 Nd6 Bd2 Nb7 Kc1 Qc4 Bb8 Qa6 Be1 Rg3 Bd6 Rf3 Qc7 Rc8 Qca5 Rc7 Nc8 Rg3 Rf3 e3 Q5b5 e2 Re3 Rf3 Qd3 Rg3 Qf5 Rg4 Rf8 Rg3 d8B Rg4 B8e7 Ncd8 Be5 Rg3 Bd4 Rc6 Bd6 Rg4 Rfe8 Rg3 Rd3 Rf3 Ree3 Rg3 Bf2 e1R+ Rd1 Reg1 Be1 Rf3 Rd2 Rg4 Bf2 Rg5 Kb2 Bh6 Rf1 Rgg3 Kc1 R8g4 Be1 Bg7
Q2q4/2q2pP1/5n2/1bBP3P/QpknKb2/1NP4N/2BB1qrN/1N1nR3 w - - 0 1 legal: proof: b4 b5 f4 d5 a4 a5 bxa5 g5 e4 h5 exd5 g4 g3 Ra6 Ra3 Rg6 Rb3 h4 gxh4 Rg5 fxg5 c5 Rb4 cxb4 h5 Ba6 Bd3 Bb7 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 d4 e5 h4 b3 h6 g3 h7 e4 a6 g2 a7 b2 a8N b4 a5 Na6 g6 Be6 c3 Nc5 h5 Qc8 a6 Bf5 g7 Bd7 a7 Nd3 Qa4 Qc7 Nb6 Be8 a8Q Nf2 Bd2 Nf6 Nf3 g1N Nd7 Ne2 Nc5 Bb5 Nb3 Be7 Nh2 Re8 h8N Bf8 Na3 b1Q Ng6 Qd1 Nf4 Re5 Bh3 Rg5 Nb1 Rg2 Bc8 Ng3 Nh3 Nf5+ Kf4 e3 Re1 e2 Bd7 Ne3 Bf5 Nc2 Bc1 Qd3 Bd2 Nd1 Bg6 Qdc4 Bf5 Qd8 Kf3 Qcc7 Bg6 Ke7 d6+ Ke6 d7 Bd6 Be4 Bf4 d5+ Kd6 Bd3 Ne8 Ke4 Nd4 Na1 Kc5 Bc2 Kc4 Nb3 Qdc8 d8B Q8b8 Bg5 Qbd8 Rg1 e1Q+ Be3 Qh4 Re1 Qg3 Be7 Qh4 Bc5 Qf2 Bd2 Nf6#
Bk3B2/1B2b3/3bPn2/1PNnQ3/1Q1br1p1/3P1pPK/bBbN4/2Rq2N1 w - - 0 1 legal: proof: b4 a5 h4 g5 c4 e5 a4 b5 axb5 d5 cxd5 e4 h5 Ra6 f3 Rf6 fxe4 Rg6 hxg6 Qf6 Ra4 Qc3 e5 Qd4 Ra1 Qxa1 Kf2 Kd8 Kg3 c5 e4 Kc7 g7 f5 e6 h5 e7 a4 e8B a3 e5 h4+ Kh2 c4 g3 h3 Qa4 a2 Bc6 f4 Bb7 c3 Bg2 c2 Bb2 Bf5 e6 Nc6 d6+ Kb8 b6 c1B b5 Be7 d7 Nb4 d8N Bc2 d3 Nd5 Nd2 Rh4 Qb4 Ngf6 g8Q Qb1 Qh8 a1B Ba8 Rg4 b7 Rh4 Bc3 Ba3 Bb2 Qd1 Qg7 Nd7 Qgc3 N7f6 Qe5+ Bd6 Bc1 Bd4 Bb2 Kc7 b8B+ Kc8 Bc7 Rg4 Bb6 Kb8 Bc5 Rh4 Ngf3 Rg4 Rf1 Rh4 Ng1 Rg4 Kh1 h2 Nb7 Rh4 Be4 Rg4 Kg2 h1B+ Kh3 Bf3 Bh7 Be4 Bf5 f3 Bh7 Nc7 Bg6 Bd5 Be4 Ba2 Bd5 Be7 Bd6 Re4 Nc5 Bd8 Bf8 Be7 Bdc6 Bd6 Bcb7 Ncd5 Qa4 Bb4 Re1 Ba5 Qb4 Bd8 Rf1 Be7 Re1 Qe2 Ra1 Qd1 Rc1 g4+
1bB3nN/1R1n2p1/2RP1R2/k1NpPr1b/2q5/2Nb1P1K/P1Q5/1Q3Nbq w - - 0 1 legal: proof: c4 b5 b4 a5 bxa5 e5 d4 d5 g4 h5 gxh5 f5 c5 f4 dxe5 Ra6 e4 Re6 Be3 Rd6 cxd6 fxe3 h4 Kd7 h6 Kc6 f3 b4 a6 Kb6 h7 c5 a7 c4 a8R c3 e6 e2 Kf2 e1B+ Kg2 c2 e7 c1Q e8N b3 e5 b2 h5 Qd2+ Ne2 Bg3 h6 Be1 Ra6+ Kb5 Nc3+ Kb4 Nf6 b1B Nd7 Qf4 Rc6 Qdh4 Ng3 Qc4 Qc2 Be7 Nc5 Ka5 Be2 Bf6 Nf1 Nd7 Bd3 Qh5 Bf5 Bg3 Rh2 Bfh4 Kh3 Bf4 Rg2 Bh2 Rg6 Ba6 Rf6 Bc8 Qf2 Bd3 Rb1 B4g3+ Kg2 Bh4 Qc2 Bf2 Rb7 Bd4 Qb1 Qh4 Be6 Qe1 Kh3 Qd1 N5e4 Ba7 Nc5 Bb8 Bf5 Ne7 Bg4 Rf8 h8Q Ng8 Qh7 Rf7 Qe4 Rf8 h7 Qc1 Rg6 Rf5 h8N Qe1 Nd2 Qh1 Nf1 Ndf6 Qe2 Bd7 Qg2 Be8 Qgc2 Nd7 Rf6 Bh5 Rb2 Rf4 Be6 Rf5 Rb7 Nb6 Bc8 Nd7 Rf7 Ba7 Rf8 Bb8 Rf6 Bg1+
R5N1/K2N1P2/2qkbp2/BQ1PqQ2/pq1B2P1/rB2n1Pq/8/1nr3BQ w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 e6 a4 Nh6 axb5 Kd7 f6 Ng8 f7 Qh4 Bc4 Qf6 Bf1 Qd8 b4 Nf6 g4 Ne4 f4 Nf6 f5 Ne8 f6 Bc5 f8B Bd6 f7 Bg3+ hxg3 Nf6 Ra3 Ng8 Rf3 Ba6 Rf2 Bc8 Rf6 gxf6 Ke2 a5 Ke3 c5 d4 h5 d6 e5 b6 h4 b5 e4 b7 h3 b6 c4 Nc3 a4 Nf3 h2 Nd5 c3 Bb2 c2 Bc4 Ra5 Bb3 Nc6 b8Q Qc7 b7 Nh6 Ne7 Rc5 d5 Na5 Kd4 c1Q Ng8 e3 Qg1 e2 Ne5+ Kd8 d7 e1Q Bd6 Rc3 Bc5 Nc4 Qa7 Re3 b8Q Nd2 Qb5 Nb1 Qf2 Qb7 Qf5 Kc7 Bb6+ Kd6 d8B Qb8 Nd7 Qc6 Qaa5 Qe2 Qe1 Qbb7 Qd1 Rc3 Re1 h1Q Ba7 Re3 Ba5 Qh3 Bbc3 Qb2 Qdf3 Rh7 Qh1 Rf3 Re8 Qe2 Nc5 Be6 Ra8 Qe5+ Kc4 Rh8 Bd4 Qb8 Kb4 Rd3 Nd7 Qf8 Bd1 Ra3 Bb3 Qb8 Bg1 Qbb7 Bad4 Qbb6 Ne7 Rc8 Ng8 Qbb7 Bab6 Qb8 Ka5 Rc7 Ka6 Rc8 Qfd3 Nf5 Qdf3 Ne3 Qf5 Qc3 Ba5 Qc2 Qe2 Qb4 Ka7 Qc6 Qef1 Qcb5 Q1d3 Rc1 Qc4 Qc6 Qa6 Qh6 Qb5 Qh3
qR4R1/1bBrP2K/N1Qb4/3P1r1k/n2pB2P/2Q3P1/BBp5/2bbRq2 w - - 0 1 legal: proof: c4 b5 d4 h5 a4 g5 axb5 d5 g3 e5 Nc3 g4 dxe5 Nc6 Nb1 d4 Nd2 Nb4 Ndf3 Nd5 cxd5 Ke7 Nh4 Ke8 Ng2 h4 f3 h3 fxg4 hxg2 g5 Bh6 Nh3 Bg7 Ng1 Bf8 Kd2 c5 Kd3 a5 Ke4 f6 h4 Kf7 b4 Kg6 b6 c4 b5 a4 e6 c3 e7 a3 e8Q+ Kh7 b7 c2 b8R a2 b6 Bd6 g6+ Kg7 b7 Bg4 Nh3 g1Q Ng5 Kh6 g7 Qb6 Qe1 Qa5 Qc3 Qa3 Qec6 Rh7 Ne6+ Kh5 Nc5 Ne7 g8B Nc8 Na6 Rd7 Bh7 Nb6 Bb2 Na4 e3 Be2 Kf5 Bd1 e4 Ra7 Rb1 a1B e5 Qg2 Bc4 Qf1+ Ke4 Ra8 Rg8 Rf8 b8B Qa2 e6 Qa3 Bc1 Bb2 e7 Qa1 Bc7 Rf7 Bf4 Bc1 Kf5 Rf8 Rb8 Rf7 Ke6 f5 Ba2 Rf8 Bd2 f4 Be4 f3 Rg1 f2 Bg5 Qd3 Re1 f1B Bd2 Rf5 Bg5 Re5+ Kf6 Rf5+ Kg7 Bh3 Bd2 Qf1 Kh7 Bhg4 Qa3 Bge2 Bc3 Bd3 Bb2 Bc4 Nb4 Ba6 Qac3 Bb7 Na6 Nb6 Bb1 Qa5 Ba2 Na4 Nc5 Qa7 Na6 Qa8
Q3Q3/1qP1P2q/RbP1b1N1/r1n3p1/6B1/1q1PR2Q/2Nkqp2/n1R1R2K w - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 b4 b5 bxc5 a6 g4 b4 gxh5 Bd6 Nf3 Be7 Ng1 Bf8 c4 d6 c6 a5 c7 Ra6 c5 Ra8 c6 Be7 Bb2 Bf8 Bd4 Ra6 Be3 Rb6 Bc5 Rb5 axb5 dxc5 Kf2 Ke7 Kg2 Ke6 h4 Kd5 e4+ Kd4 e6 f5 h6 g5 e7 b3 e8Q b2 h5 f4 h7 a4 b6 f3+ Kh2 a3 e5 c4 h6 a2 d3 Ke3 e6 f2 b7 c3 Be2 c2 Nh3 c1Q Rf1 Nf6 Qe1 Qd1 Qa5 Ng4+ Kh1 Qb3 Rc1 Qd7 Na3 b1Q Nf4 Bc5 Qa8 Na6 b8R Bb6 Nc2+ Kd2 Ng6 Ne3 Bg4 Nc5 e7 Qf5 Rb7 Be6 Ra7 Q1b2 Rab1 a1Q Ra6 Qaa2 Ra1 Rf8 h8R Qf7 Re1 Qh7 Rac1 Rf5 Rf8 Re5 Rf3 Rd5 Nb4 Nc2 Rfe3 Na1 Nc2 Qg8 h7 Qab1 h8Q Qh7+ Rh3 Rf5 Qg7 Qe5 Qh6 Qe2 Rf3 Rf4 Rg3 Ra4 Qh3 Ra5 Re3 Ba7 Bh5 Qb7 Bf3 Bb6 Bg4 Qb3
3N3b/kPP5/8/Bp2RprP/1nn2PN1/2n5/QnnQb1BK/3BQr1Q w - - 0 1 legal: proof: d4 a5 g4 b5 a4 h5 axb5 e5 dxe5 Be7 gxh5 Bd6 b4 Bf8 b6 c6 Ra3 a4 Rb3 Qe7 Rb2 Qc5 Rb3 Qa5 bxa5 Ba3 Rb2 Bf8 Rb5 cxb5 c4 Kd8 e4 g5 h4 f5 f4 d5 Kf2 g4 Kg3 d4 c5 d3 c6 a3 h6 a2 e6 a1N h7 d2 e5 Nd7 b7 Kc7 a6 Kb8 e7 Bh6 e8Q Ngf6 c7+ Ka7 e6 Nb8 e7 Be6 Kh2 Nd5 Nc3 Rf8 h8Q Rf7 Nf3 Bd7 Ne4 Bc6 Bg2 Bg7 Nd6 Nb6 Ne5 Nc4 Re1 Bf3 Qh5 Rf6 Ndf7 Rg6 Nd8 Bh8 Qc2 d1N Bd2 Rg8 Ba5 Be2 Qd2 Nc6 Qh6 Nb4 Qhc6 Ndb2 h5 Nb6 Bf3 Bd3 Bd1 Be2 Qh1 g3+ Kg2 Rg7 Ng4 N6c4 Kg1 g2 Kh2 Bf1 Re5 g1N Qg8 Nb6 e8B Nac2 Qe6 N6c4 Bc6 Ne2 Bg2 Nc3 Qe7 Be2 Qh4 Rg5 Q4e1 Nba2 Bb4 Kb6 a7 Ka6 Ba5 Nab4 Nc6 Re8 Nd8 Re6 Rc5 Re3 Re5 Rf3 Bb6 Nc6 a8Q+ Na7 Bc5 Rf1 Bd6 Kb6 Bb4 Nc6 Qa2 N4a3 Ne6 Ka7 Ba5 N6b4 Nd8 Nac4
2r4Q/B2PRnP1/kn2b2b/1rPR1Qr1/p5Q1/3QN1pP/3K2N1/2bNr3 w - - 0 1 legal: proof: e4 c5 f4 b5 d4 g5 dxc5 b4 fxg5 b3 axb3 Qc7 b4 Qb6 b5 Qd8 g4 h5 g6 d5 g5 d4 Bh3 Qd6 Bg4 Qd5 exd5 hxg4 c4 Kd7 b4 Kc7 b6+ Kb7 g7 e5 d6 f5 b5 a5 g6 e4 h3 a4 d7 e3 Qd3 f4 Ne2 g3 Nbc3 f3 Nf4 e2 Ng2 f2+ Kd2 f1R Nd1 Rf4 Re1 Ne7 g8Q Ra5 c6+ Ka8 c7 Kb7 Qf7 Bh6 g7 Nbc6 Qff5 Nd8 Ba3 Nf7 Bc5 Nd5 Qg4 Ka8 Ra3 Bb7 c8N Kb8 Ne7 Rc8 Nf5 Bc6 b7 Nb6 Rb3 Bd5 Nfe3 Be6 Qdf5 d3 Ra3 Na8 Ba7+ Kc7 c5 Nb6 Rc3 Rd4 Rc4 Rd5 Rd4 Re5 Qf6 Rg5 Qff5 Rd8 Rd5 Rc8 Kc3 d2 b8Q+ Kd8 Qa8 Kc7 Qd3 Rh8 Qg8 Kb7 Qgh7 Rb8 Qhf5 Rc8 Rf1 e1B Rf3 Na8 b6 Rb5 Rf4 Bf2 Re4 Ka6 b7 Nb6 b8Q Bg1 Qd6 Bf2 Qf8 Be1 Qh8 Bf2 Nb2 d1R Ree5 Re1 Kd2 Bg1 Nbd1 Bf2 Nc4 Bd4 Nce3 Bb2 Qf6 Bf5 Re7 Be6 Qff5 Bc1+
rR2N1n1/1Q4K1/b5q1/Prb5/2NQ1r1P/1pR1nPP1/kp2N1Bp/3N3R w - - 0 1 illegal: No proof kernel
r3n2R/1bB1pP2/k2P4/1r1Qn3/qQ2Qp1P/Q2np1P1/b2N1N2/N2RK3 w - - 0 1 illegal: No proof kernel
1QK5/2p3Qq/1pb2P2/RpBNbrPk/1qP2Qnr/1n2R3/5P1B/1BB5 w - - 0 1 legal: proof: b4 d5 g4 e5 e4 g5 exd5 f5 gxf5 g4 a4 a6 h4 g3 a5 g2 b5 Bd6 b6 Bf8 Na3 Qg5 hxg5 Be6 Nb5 axb5 a6 Ke7 a7 Na6 Ne2 Rd8 a8Q g1R Ra5 Rd7 Ra1 Rg3 Ng1 Ra3 Nh3 Nb4 Ng1 Ra7 bxa7 Na6 Ke2 Kf7 Kd3 h5 Ke4 b6 c4 h4 d4 h3 d6 h2 d5 Rh3 f6 Kg6 Qd2 Rdh7 d7 Rc3 d8B Bb4 d6 Rd3 d7 Rc3 Be7 Bg4 Kd5 e4 Kc6 e3 Kb7 e2 d8B e1Q Bc5 Rh5 Bde7 Ba3 Qf4 Rb3 Nh3 Nh6 Bed6 Rh4 Qb8 Kh5 a8Q Bd7 Bd3 Ng4 Bb1 Qb4 Re1 Rf3 Re3 Bb2 Ra5 Bc6+ Kc8 h1Q Be5 Be8 Qd5 Bc6 Qd7 Ba1 Bed6 Be5 Qg7 Qh2 Ng1 Qh1 Ne2 Qh3 Nc3 Qh2 Bd4 Nc5 Nd5 Nb3 B4c5 Qh1 Qd4 Rf5 Qd2 Ba1 Bh2 Qe4 Qd4 Qe7 Qe4 Be5 Qf4 Qf7 Ra4 Qg6 Ra5 Qh7
q2K3N/2nR1p2/1pp3Q1/4bP1Q/1b1r1R1P/n1R2b2/PR4P1/2BQN1nk w - - 0 1 legal: proof: c4 d5 cxd5 a5 d4 g5 b4 h5 bxa5 g4 f4 h4 e4 h3 e5 Rh5 d6 Bh6 d5 Ra7 Qc2 Bf8 Be2 Rh8 Bf3 gxf3 Qf5 Bg7 Qxh3 Kf8 Qh5 Ra6 d7 Rd6 exd6 Bh6 Qf5 Kg7 Qe4 Kf6 Qh7 Bf8 Kd2 e5 Kd3 e4+ Kc4 b6 Kb5 e3 h4 f2 a6 f1N a7 e2 a8Q e1B f5 Ke5 Nd2 Kf4 Qg6 Qg5 d8Q Kg3 d7 Qg4 d6 Bb7 Ndf3 Ne7 Rb1 Bf2 Nh3 Nd5 Nf4 Nd2 Ne1 Na6 Rf1 Kh2 Rb2 Ne3 Qh5 Qf3 Ng6 Rg8 Nh8 Nc2 Qf6 Bc5 d8R Rg4 d7 Bg7 Qfg6 Be5 Rc8 Rd4 d8R Bb4 Rd7 Qa3 Rf4 Kh1 Qa7 Nf3 Qa8 Be4 Qd5 Ng1 Kc6 Bf3 Kb7 Re4 Qd1 Rd4+ Rd5 Qa5 Kc6 Na3 Kd7 Qa4+ Kd8 Qa5 Rd7 c6 Ra8 Nc7 Ra7 Qc5 Ra5 Qc4 Rc5 Qa6 Rc3 Qa8#
5B2/PrKP1N2/kB5n/4Qb1p/2n1R1p1/2b2NnP/B4pP1/2Qn1bBQ w - - 0 2 legal: proof: c4 a5 d4 d5 cxd5 e5 b4 b5 bxa5 b4 a4 Qd7 d6 Qb5 axb5 Be6 Qc2 Bf5 Qd1 Bc8 f4 Nh6 e4 Na6 f5 Rb8 d5 Ng8 Ra2 Ra8 Rd2 Nb8 Rd4 exd4 Qh5 Ra6 Qg4 Rc6 Qd1 Rc3 e5 Rg3 Nf3 Rg6 Ng1 Re6 fxe6 Bb7 Bc4 Ba6 Bf1 Bc8 Kd2 Kd8 Kd3 h5 Kc4 c5 a6 f5 h3 g5 b6 g4 Kb5 d3 a7 f4 b7 f3 Kb6 b3 d7 c4 Be3 d2 Qc1 d1B Na3 b2 Nb5 b1N Nd6 c3 Nf7+ Ke7 Bc4 c2 Kc7 Nc6 b8B Bg7 Ba2 Nh6 d8B+ Ke8 e7 f2 d6 Bf5 Nf3 Na5 Bb6 Nc4 Re1 Nc3 Re4 Be2 Qh1 c1N Rf4 Bg6 Kb7 Kd7 Bc5 Nb5 Bdb6 Ke6 e8Q+ Kd5 e6 Bf1 e7 Bf5 d7 Ne2 Bbd6 Nbc3 Kc7 Rg8 Qd8 Re8 Re4 Nd1 Bh2 Bc3 Bg1 Ng3 Ba3 Rh8 e8Q Rf8 Qg5 Rh8 Kd8 Kc6 Qc1 Kb5 Kc7 Ka6 Qe5 Rb8 Bf8 Rb7+
k2rq3/1N4q1/5pp1/P1bPNBpQ/2NrRqb1/8/Q3P1PB/2Qq1Q1K w - - 0 1 illegal: Other
1B1R4/rb1nP2P/pBQ2qQ1/b2pp1N1/6PN/k1b1QP2/B3p2B/5Kn1 w - - 0 1 illegal: No possible last move, all moves rejected
Q2K2nN/Q2b2r1/2Q1N1NP/3q2qP/2PP2R1/1Bp1nk1p/2Rpp3/r1N5 w - - 0 1 illegal: No proof kernel
1QRQN2k/1r2QprB/P3p3/2K3Bp/p1P4Q/4bN2/P3Pp1p/q1r2N2 w - - 0 1 illegal: Other
8/4knQ1/b2q2q1/1q1B1BRn/RP1Pr3/p1QN4/Prn2BPr/B3b1KQ w - - 0 1 legal: proof: e4 b5 c4 f5 cxb5 g5 h4 d5 exd5 Ba6 hxg5 Bb7 Nc3 Bc8 Ne4 fxe4 f4 e5 Kf2 c5 d4 a5 b3 h5 g6 a4 d6 a3 g7 h4 f5 c4 b6 h3 d7+ Ke7 b7 c3 Be2 e3+ Kf1 e4 Bg4 c2 Rb1 h2 Ne2 Nh6 g8B Nf7 Bb2 c1Q Nf4 Qc4+ Nd3 Qb5 Ba1 e2+ Kf2 Nc6 b8B e1R Bg3 Nb4 Rf1 h1N+ Kg1 e3 Bf2 e2 f6+ Kd6 Qc1 Ba6 Qc3 Nc2 Bf5 Rh2 Rc1 Qe7 d8Q+ Qed7 Qe8 Rb8 Qe3 Qe7 Qh3 Ng3 Rb1 Nh5 Qh4 Nd8 Bd5 Nf7 Qh3 Bh6 Rb2 Bd2 Rb1 Ng5 f7 Qc7 Qh4 Ke7 Rb2 Qd6 Qh3 Kf6 f8Q+ Nf7 Qg7+ Ke7 Rb1 Rd1 Rc1 e1Q Rb1 Qee6 Re1 Bg5 Rb2 Rd2 Re5 Re8 Rb1 Bh4 Rc1 Kd8 b4 Qg6 Re7 Re2 Ra7 R8e4 Rf1 Bc8 Ra4 Ba6 Re1 Rd2 Re3 Ke7 Rg3 Ne3 Rg5 Rb2 Qg4 Nc2 Qf4 Rh3 Qh2 Bg3 Qh1 Rh2 Be3 Be1 Bf2 Rg4 Kf1 Rf4 Kg1 Re4
1QQ4r/P2R1b2/NpB1n2B/P3n3/3BnrRq/1PQq1kP1/rbQ4q/4K3 w - - 0 1 illegal: No proof kernel
3Q4/2QrbKP1/p4R1N/n1rN3b/P1rNbQ2/B1b3N1/3bPP1k/1Rq2n2 w - - 0 1 legal: proof: g4 b5 d4 g5 c4 f5 cxb5 e5 dxe5 Ba3 h4 Bf8 Bh3 Nc6 hxg5 Ke7 g6 Nb8 g5 Ke8 Bg4 fxg4 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 c5 b4 h5 a4 c4 g7 a6 e6 c3 b6 c2 g6 g3 e7 Kg4 e8N g2 b7 h4 b5 h3 b6 h2 Ke5 d5 Qd3 d4 Bb2 c1B Qd1 d3 Qb3 d2 Qc2 d1R Qc3 Qg5+ Ke4 Ne7 g8N Nbc6 b8Q Rh4 g7 Nd5 b7 Ne3 Nd2 Be7 Nf1 Bd2 Ba3 Na5 Ng3 Nf1 Nf3 Kh3+ Qf4 Bg4 b8Q Bh5 Qd8 Rc8 Nef6 Rc5 Nd4 Qh6 Rg1 h1B Nd5 Kh2 Kf5 Rg4 Qc4 Bc3 Qfc7 Qc1 Ke6 Rd3 Rb1 Bd2 Nc6 Rf4 Qb4 Rfc4 Nh6 Rdd4 Ne3 Rd7 Nd5 Ne3 Rd1 g1B Nd4 Be4 Qbb8 Nf1 Rb6 Qc3 Rdb1 Qc1 Qf4 Kh3 Qbc7 Bh2 Nh1 Bg3 Rd6 Bgh4 Ng3 Kh2 Rdb6 Bhf6 Rc6 Bg4+ Kf7 Be5 Rf6 Bgf3 Nb5 Bec3 Nd4 Bh5+
RnK3Br/NQ6/1P2R1b1/qnk1p3/Q1P1P2b/1QQb1R2/2P2Nr1/1n2br2 w - - 0 1 legal: proof: f4 g5 a4 b5 axb5 c5 d3 c4 dxc4 Qa5+ Kf2 Qc7 Ke1 Qd8 fxg5 h6 g6 Ba6 g7 Bc8 g4 Nf6 g5 Ng8 g6 Qc7 Bd2 Qd8 Bg5 hxg5 Kf2 f5 Ke3 d5 Kd4 Kd7 Kc5 a5 e4 g4 h4 d4 b4 g3 h5 g2 b6 d3 h6 a4 b5 f4 h7 f3 b7 a3 b6 a2 Nc3 f2 Nb5 d2 Qf3 d1N Na7 Nc3 Rh3 Nb5 Qb3 Nf6 g8Q Nd5 g7 Ndc3 Rf3 Nb1 Nh3 g1R Be2 f1B Nf2 Rg2 Bd1 Nc6 b8Q Bd3 Qb7+ Qc7 Qf7 Rb8 g8Q Bh6 Kd5 Bd2 Qgg7 Be1 Qgc3 Ra8 Qa6 Nb8 Qaa4 Qf4 Qfg7 Qd2 Ke5 Rf8 h8R Rf7 Rh6 e6 Qcb2 Qa5 Q2c3 Ke7 Rhf6 Bd7 Rh6 Be8 Qh7 Rfg7 Be2 Bg6 Bf1 Rg1 Bh3 Rf1 Bf5 Kd7 Kf6 Kd6 Bh3 e5 Be6 Rg8 Qb7 Kc5 Ke7 Rh8 Nc6 Ra7 Bg8 Ra8 Kd8 Ra7 Nh1 Bh4+ Kc8 Ra8 Nf2 Ra7 Qa6 Rg7 Qa8 Bf7 Rhf6 Rg2 Na7 Bg6 Re6 Nd2 Re1 a1B Qb7 Nb1 Ree3 Bb2 Rf8 Bc1 Ref3 Bd2 Rfe8 Nc6 Kd7 Be1 Ra8 Nb8+ Kc8 Be7 Qd7 Bf6 Qb7 Bh4
1bnKNrR1/4bq1Q/2Rn2R1/3Bk2q/p5rP/Pb1R4/QPP3Q1/bbB5 w - - 0 1 illegal: No possible last move, all moves rejected
Q1Qq3k/8/B1P3n1/QBKr1Pnp/1Bbr2R1/1N1B1qPP/2rbN1r1/6r1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 bxa5 Na6 e4 Nb8 exf5 Qc7 Qd5 Qb6 Qd1 Qd8 f4 g5 a4 Nc6 f6 Nb4 f5 Na6 Ra3 Nb8 Rf3 Qc7 Rf2 Qd8 Rf4 gxf4 Kf2 Kf7 c4 d5 g3 h5 a6 b5 a7 e5 c6 b4 h3 b3 a5 d4 c5 d3 a6 e4 c7 b2 c6 f3 Ke3 f2 Bg2 f1Q Qg4 d2 Qd1 Nh6 Ne2 Kg8 Qe1 d1R Qa5 Be6 c8B Nf7 Nd2 b1R Nb3 Rb2 Bd2 Nd7 Kd4 e3 Be4 Bc4 Bd3 Bh6 Bb4 Nde5+ Kc5 Qf3 Re1 Ng5 f7+ Kg7 Be6 Ng6 f8Q+ Kh7 Bc8 Rc2 Qe8 Rb8 a8B Rf8 a7 Kh8 Ba6 Rg8 Nc3 e2 B8b7 Rf8 Rf1 e1R a8Q Rg2 Rf2 Reg1 Bb5 Rd2 B7a6 Rc2 Rd2 Rb7 Qc8 Rd7 Ne2 Rd4 Qa8 Rg8 Qd7 Rg7 Qdc8 Rgd7 Rd1 Nh7 Rf1 Bd2 Rd1 Ng5 Rf1 Qg4 Rf4 Qf3 Rg4 R7d5#
QNB3KR/RR1pbB1B/2q5/3Pq3/2knP2B/1nP2n1Q/4b1nP/3nr2r w - - 0 1 legal: proof: f4 a5 b4 e5 bxa5 h5 fxe5 h4 Nc3 c6 Nb5 h3 gxh3 cxb5 h4 b4 h5 Rh7 Nf3 Rh6 Ng1 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 g5 a4 b5 d4 g4 a6 g3 c3 b3 e6 b4 h6 g2 h7 b2 e7 b1Q+ Kg5 f5 Kg6 f4+ Kf7 f3 e8Q f2 a5 b3 a7 b2 a6 Be7 Qd3 Qb6 Nf3 g1N Bg5 Nc6 Bh4 Qe1 Ne5 b1N Qh3 Nf3 e3 Nf6 Bd3 Rb8 a8B f1N a7 Ne4 Bb7 Nbd2 a8B Nf2 Ra7 Nd1 Bf5 Rg8 h8R Nb3 Bh7 Rg1 Qg8 Qb5 Qgg2 Qc5 Kg8 Qd6 Ba6 Rb4 B8b7 Ra4 Bad3 Ra1 Bdg6 Rb1 Bf7+ Qe6 Ba8 Ba6 Bb7 Be2 Bc8 Rc1 Ng6 Kc4 Ne5+ Kb5 d5 Ncd4 Nc6 Kc4 Nb8 Qc6 e4 Nfe3 Qg7 Ng2 Qf8 Qd2 Qd8 Qf4 Rb7 Qff6 Qa5 Qe5 Qa8 Re1 Rf1 Bd3 Rf2 Rh1 Ra2 Be2 Ra1 Nf2 Ra2 Rce1 Raa7 Nd1
1bB3bN/BP2r1R1/P1Qp3B/N5PQ/3N1k2/b2P1q2/K2bn3/N1r2bqn w - - 0 1 legal: proof: b4 b5 c4 a5 a4 g5 h4 f5 hxg5 Na6 e4 Nf6 exf5 Nb8 Ra3 Bb7 Rb3 Ba6 cxb5 Bc8 b6 Ng8 b5 Nf6 Rb2 Ng8 Rb4 axb4 g4 Kf7 f4 h5 g6+ Kf6 d3 e5 Kd2 c5 Kc2 b3+ Kb2 h4 b7 h3 g7 c4 b6 h2 a5 c3+ Ka1 c2 a6 e4 Nf3 e3 Rg1 h1Q Rg3 b2+ Ka2 e2 Na3 e1B Bh3 Bd2 Nd4 Nc6 b8B Qg1 b7 Nge7 Ba7 Rh7 g8Q Rf7 Nb3 Nd4 Na1 Ne2 Nc4 Qc7 Rg2 Qc6 Na5 Qf3 Qh8+ Bg7 Qe8 d6 Qc6 b1B+ Ka3 Ba2 Rg3 Bb3 Kb2 Ba4 Ka2 Bh6 Rg2 Be3 Bd2 c1B Rg3 Ba3 Bc1 Kg7 f6+ Kg6 f5+ Kg5 Bd2 Rh7 f7 Kf4 f6 Nf5 f8N Re7 f7 Bc2 Rg2 Nfg3 Bc1 Nh1 Ng6+ Kg5 Nh8 Kf4 f8N Bb3+ Kb1 Bg8 Ne6+ Ke5 Nd4 Kf4 Rg3 Bd7 Rg2 Rc8 Bd2 Rf7 Ka2 Re7+ Qd5 Bg5 Qa4 Rc1 Qc6 Rf7 Rg3 Bd8 Qh5 Bc7 Be1 Bf5 Bf2 Bd2 Be3+ Ke5 Bh6 Bb8 g5 Be4 Bc8 Kf4 Rh3 Bf5 Rh2 Bd7 Rf2 Bh3 Rh2 Bf1 Rh4+ Ke5 Rf4 Re7+ Rf7 Rc4 Rh7 Kf4 Rg7 Rc1+
2rrBrbr/1p1Q1q2/1R1q1R2/1K1kBr1B/N4B2/1Pb4P/QP3P2/1n1nR3 w - - 0 1 illegal: No proof kernel
R2n1N1Q/2P4K/2b2R1p/2k4P/1NB2Q1Q/1rnPr2b/PN6/qqbbN1n1 w - - 0 1 legal: proof: e4 a5 f4 d5 exd5 g5 fxg5 c5 b4 Bh3 bxa5 Bd7 Ba3 Bc8 Bb4 cxb4 Kf2 Kd7 Ke3 Kd6 Ke4 e5 h4 b5 c4 f6 g4 b3 c5+ Ke7 a6 b4 c6 Kd6 g6 b2 g7 b3 c7 Bd7 g5 Be7 g6 Bh3 a7 Kc5 d6 Nc6 d7 Rb8 Na3 b1Q+ Nc2 b2 a8N Rb3 Qe1 h6 h5 Bd6 Nf3 Nge7 g8Q Nd5 Qf7 Re8 g7 Be7 g8Q Nc3+ Ke3 e4 Kf4 e3 Nb4 e2 Qh4 e1N Rg1 f5 Nb6 Bf6 Qh8 Re3 Nc4 Qa8 Rg6 Nd8 Rg8 Qb8 Re8 Qc1 Rg8 b1B Nb2 Bc2 Bc4 Bd1 d3 Be7 Rb1 Bg2 Rg6 Qb7 Rf6 Qb5 Nd4 Nf3 Ndc2 Ng1 Ne1 Be4 Ke5 f4 Qff8 Bc6+ Kf5 f3 Kg6 f2 Kh7 f1B Qf7 Nb7 d8N Bh3 Qff8 Bd6 Qf7 Bf4 Ne6+ Kb6 Nf8 Kc5 Qe8 Nd8 Qe4 Bg5 Qef4 Qc2 Rc1 Qb1 Rc2 Qa1 Re2 Rg3 Re8 Qb7 Qfg4 Bc1 Qf4 Re3 Ree6 Be8 Ra6 Qh1 Ra8 Bc6 Nbc2 Qh2 Nb4 Qc2 Rc8 Qcb1 Rb8 Bhg2 Ra8 Bh3
1b3RN1/7Q/1nr1rbBK/n1N5/2q2pPR/1b1rPP1Q/2RP2Nq/k4b1N w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 b3 Na6 Bb2 Nb8 f3 e5 Bd4 e4 Bf2 e3 Qc1 exf2+ Kd1 Bb7 Qc2 Ba6 Kc1 Bb7 Qd1 Bc8 g4 Kd7 b4 Kd6 g6 h5 g7 c5 e3 a5 b6 f5 b5 f4 b7 a4 b6 c4 Bh3 Kc5 d6 Kb4 d7 f1B Ra2 h4 Kc2 a3 Ne2 c3 Kd3 c2 Ke4 Kb3 Kf5 Nc6 Kg6 Na5 b8N Ra6 Ng3 Nf6 g8N Bd6 b7 Qc7 d8R Nd7 Rf8 Nb6 Nd7 Qc4 b8Q Rh6+ Kg5 Re6 Qb7 Bb8 Bg2 h3 Nc5+ Kb4 Kh5 c1R Qh7 h2 Rc2 a2 Na3 a1B Qe2 Bf6 Kh6 Rd6 Qed3 Rd8 Qdg6 Rd7 Qh5 Rd3 Qh4 Be6 Qh3 Be2 Bf1 Bd5 Rg1 h1Q Rg2 Qh2 Nh1 Bc6 Rf2 Ba4 Rg2 Bb3 Rf2 Qg3 Rh2 Qg1 Nb5 Qg2 Nd6 Ka3 Nf5 Qf2 Nh4 Qg3 Rc3 Ka2 Ng2 Ka1 Rc2 Qf2 Qg3 Qg1 Rh4 Qh2 Qh3 Nd7 Qg7 Re6 Qh7 Nb6 Qh8 Rd8 Qh7 Bd3 Be2 Rdd6 Bd1 Bf1 Be2 Rc6 Bd3 Rb1 Bg6 Rc1 Rb2 Rc3 Rc2 Rd3
1Qbk2r1/K1pN4/3qQ1Bn/1PRn1B1B/PBP4b/3nq1R1/1Pr5/1nQ2q2 w - - 0 1 illegal: No proof kernel
1b5r/4RP2/2pQ4/rq1R4/b3rRbP/QbP2BnR/n4PK1/qkB1N2Q w - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 h5 dxe5 f6 g4 Rh6 Nd2 Rh7 Ne4 f5 gxf5 Rh8 Nf6+ Kf7 Ng4 hxg4 Bg2 Ke7 Bf1 Ke8 h4 Kf7 e4 g5 a4 b5 e6+ Kf6 e7 Ke5 e8Q+ Ne7 f6 d5 a6 b4 a5 g3 c3 d4 f7 b3 a7 b2 a6 b1B Qb3 g4 Qba4 d3 Qb4 d2+ Ke2 d1B+ Ke3 g2 Qc6 g3 Ba3 Ba4 Kf3 Qd7 Qg6 Nbc6 Bc1 Nf5 Rh3 Ba2 Be2 Bd6 Qa3 B2b3 Ra2 Nb4 Rd2 Qb5 Rd1 Rb8 a8Q Na2 a7 Bd7 Qb7 Rbe8 a8R Re6 Rd8 c6 Rd4 Bb8 Rb4 Kd6 e5+ Kd5 Rf4 Re7 e6 Ree8 Bd3 Re7 Be4+ Kc4 Bd5+ Kd3 Qa6 Ree8 e7 Kc2 Qgd6 Kb1 Qb6 Bc8 Qe3 Be6 Qe1 Bc8 Ne2 g1Q Nd4 g2 Nc2 Bd7 Qf1 Qh1 Ne1 Ng3 Qg1 Bf5 Qh2 Qhf1 Qh1 g1R Rd7 Rh5 Rd8 Reh8 e8R Be6 Re7 Re5 Bc4 Re4 Be2 Bc8 Nc2 Qd1 Ne1 Rf1 Kg2 Bg4 Bd2 Qc1 Bf3 Qb2 Bc1 Qa1 Nc2 Rd1 Ne1 Rdd4 Qf6 Re5 Rd5 Rde4 Qfd6 Qc4 Rd4 Ra5 Rd5 Qb5
KRN5/pn6/1QPQ3r/6bP/P1qR1P2/1q2k1Nr/2RR1qnB/Qbbq4 w - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 Na6 gxf5 Nb8 Bh3 Ke7 Bg4 hxg4 Nh3 Kf7 Ng1 Ke8 Kd2 Ke7 Ke3 g5 Kd4 d5 h4 b5 e4 g3 c4 g4 a4 g2 c6 b4 Kc5 g3 c7 b3 e6 Kf6+ e7 Ke5 h5 b2 f6 d4 f7 d3 Rh2 d2 Na3 Kf4 e5 b1Q e6 Qe4 Nb5 Ba6 c8R Nh6 Nd6 Ng4 e8R Nc6 e7 Rb8 Ne2+ Kf3 Qh1 d1Q Bf4 Qb3 Rd1 Ne3 Rd4 Bh6 f8Q Bg5 Qa1 g1Q Rc7 g2 Ng3 Qe1 Nc8 g1B Qf6 Qec2 Qd6 Ng2 Rf8 Qed1 e8Q Qf6 Qed8 Rh6 Rd7 Rb7 Qb6 Na5 Rdd8 Rg7 Kd5 Nb7 Kc6 Qcc3 c5 Qcc4 Rfe8 Qf5 Re2 Re7 Rc2 Re3 Kc7 Bb5 Kb8 Bc6 Ka8 Be4 Rcd2 Bb1 c6 Rc3 Rc2 Re3 Rdd2 Rd3 Rh4 Qfc5 Be5 Bh2 Rd4 Rc3 Nf1 Bhf4 Rh8 Be3 Bh2 Qf5 Ng3 Qff7 Re2 Bc1 Red2 Qf6 Ne4 Ba3 Ne7 Bc1 Rb8 Kg4 Nc8 Rh3 Ng3+ Qf4 Ne4 Qfg3 f4 Qf2 Ng3 Kf3 Qbb4 Ke3 Qa5 Ba3 Qb6 Bc1
1bnB2q1/Q1KbpRQQ/1NR2Q2/1P2r3/1rP1q2n/1k2P3/2n1P1Bn/r1R5 w - - 0 1 illegal: No possible last move
qnB2nnb/2Np2P1/N2k2N1/P1R3N1/4r1Q1/1P3nq1/3PbQ1b/B2KB2r w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 c4 Bh6 cxb5 Bf8 hxg5 a5 b3 a4 Nc3 a3 Rb1 Ra5 Rb2 axb2 a4 Ra8 f4 b1N g4 e5 f6 c5 b6 h5 f5 h4 f7+ Ke7 a5 c4 g6 e4 g5 e3 f6+ Kd6 g7 e2 b7 h3 g6 h2 Bb2 Kc6 Ba1 Qc7 Nh3 Na3 Nd5 c3 Ng5 Bd6 f8N c2 f7 c1B Qc2+ Nc4 Qf5 Ne5 Qf2 Rh7 Nfe6 Rh3 f8N Bb2 Nc5 Rh7 Rg1 h1Q Na6 Qe4 Rg4 Rh1 Rf4 Qg2 Rf5 Qd8 Ndc7 Qg3 Nh3 Bda3 Ng5 Kd6 Rf4 Bc5 Rc4 Be3 Rc5 Bf4 Rb5 Qf3 Rc5 Bh2 Nfe6 Qg3 Nf8 Nh6 g8Q Bd4 Qf7 Ng8 Qf4 Bc3 Nb4 Ra6 Qg4 Rb6 Nba6 Rb4 Qh5 Re4 Qg4 Nbc6 b8B Bd4 Nb4 Ba6 Ba7 Bd3 Nba6 Qa8 Bb6 Nb8 Ba7 Nc4 Bb6 Bh8 g7 Ne5 Ng6 Nf7 Ba7 Nd8 Bb6 Ne6 Ba7 Nf8 Bb6 Bg1 Bg2 Ra4 Bb7 Re4 Bc8 Bb5 Nd5 Bc4 Bd8 Bb5 Ndc7 Bd3 Nge6 Bb5 Bh4 Bc4 Ng5 Bb5 Nh3 Bh2+ Ng1 Qf4 Qf1 Qf6 Nh3 Qf3 Ng5 Qh3 Kf2 e1N Qfg1 Rc4 Ke2 Re4+ Kd1 Nf3 Be1 Qg3 Qf2 Be2+
1k1bnR2/1n1b2bB/2P2p2/NKp1r3/3r2nP/rQPR3P/N3RqQ1/1Q3Q2 w - - 0 1 illegal: No proof kernel
r1K1kBbq/1rp2R1n/PNb3Q1/2b2pQ1/n2Q4/1QPr4/1P2B2P/Nn3N2 w - - 0 1 illegal: No proof kernel
q1B2bR1/1n2nRBQ/3p1PB1/Q1r2QrB/5pP1/5P2/1nP2N1K/1k2q1bb w - - 0 1 illegal: No possible last move, all moves rejected
1Nn3Q1/b1r2nr1/pR1PNN1R/7R/3p2bK/1nPP2R1/2P1kb2/1B1q2Qq w - - 0 1 illegal: No proof kernel
rQ5Q/P1K1NbQP/b1pBBr2/q1pB3N/q1Pk4/P6n/Bbn5/5R1q w - - 0 1 legal: proof: g4 h5 gxh5 e5 f4 a5 fxe5 d6 b4 Rh6 bxa5 Ra6 a3 Rh7 Ra2 Ra7 Rb2 Ra8 Rb5 Rh8 Rc5 dxc5 Kf2 Kd7 Kg3 Kc6 Kf4 Kd5 d4 b5 h4 f5 e4+ Kc6 h6 g6 h5 b4 d5+ Kb7 a6+ Kb6 a7 c6 e6 b3 Ke5 g5 e7 b2 e8B f4 h7 f3 d6 g4 d7 f2 h6 g3 Ne2 g2 Bf4 g1Q Bf7 Qg2 Ng3 Qh3 Be6 Be7 Bfc4 f1Q Nh5 Qg4 Ba2 Ba6 Nc3 b1B Qd4 Bf6+ Kd6 Ne7 e5 Rf8 h8Q Ng6 Nd5+ Kb5 h7 Qa5 d8Q Qc1 Bh2 Nf4 Ne7 Nh3 Rf1 Qgd1 c3 Qda4 Qg4 Bc2 Qgg7 Bb3 Bd5 Qe1 e6 Bd4 Be5 Rf6 Bf4 Qe4 Qdf8 Qh1 Be5 Nd7 Qb8+ Nb6 Kc7 Bc4 Bd6 Bb3 Bg2 Kc4 Bd5+ Kd3 Nf5 Bbc4 e7 Bb3 e8B Nc4+ Qb6 Be5 Bd7 Ne3 B7e6 Nc2 Ne7 Ke3 Bg2 Bd5 c4 Bb2 Be4 Kd4 Bf3 Be4 Bg2 Bg6 Bgd5 Qc3 Qb5 Bf7 Qbb8 Qca5+
1bq2Q2/K4N1r/nP2b3/QPNk1p2/2N3nn/2p2qR1/2PPRNB1/r2q2Q1 w - - 0 1 legal: proof: e4 b5 f4 g5 fxg5 d5 exd5 h6 a4 Bb7 axb5 Bc8 g4 Bg7 g6 Bd4 g5 Bb7 b3 Bc6 Bb2 Bg7 Bf6 Bf8 g7 Bd7 g6 Bc8 Bg5 hxg5 Ke2 Kd7 Kd3 Kd6 Kd4 a5 h4 f5 b4 g4 h5 c6 h6 g3 h7 g2 Na3 a4 Rh2 Na6 Nh3 g1N Re2 Be6 Bg2 Qc8 Nf2 Nf6 g8Q Ng4 g7 c5+ Kc4 Ra7 b6 Nf3 Kb5 c4 Qg1 c3 Rb1 Nh4 Nc4+ Kd7 d6 a3 Qf7 a2 g8Q a1Q Qf6 Bg7 Qff8 Be5 Qgg7 Bg3 Qe5 Bh2 Rbe1 Qd1 Re3 Ra8 Rg3 Qf3 Re2 Ra7 Ka5 Kc6 d7 Ra8 Qb8 Ra7 d8N+ Kd5 b5 Ra8 Rh3 Bc7 Qa7 Bb8 Rg3 Rg8 h8N Rg7 Na3 Rh7 Nb7 Nb4 Bf1 Bg8 Nc4 e5 Re3 e4 Nc5 Be6 Re1 e3 Nf7 e2 Bg2 Bf4 Rb1 e1Q Rc1 Qf1 Re1 Bb8 Re2 Qd1 Qa6 Qd8 Qa7 Nc6+ Ka6 Nb4+ Kb7 Qe8 Qa2 Ra4 Qa3 Na6 Qb4 Ra1 Qa5 Qc8+ Ka8 Be5+ Ka7 Bb8+
6rn/rNR1PKQ1/q4Q2/Q2R1N1b/p2P2n1/PPN2b2/2kBN1qp/b6q w - - 0 1 legal: proof: f4 b5 h4 d5 c4 e5 cxb5 g5 fxe5 Ne7 hxg5 Ng8 e3 Ba3 Be2 Bf8 Bc4 dxc4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 g4 f5 b3 h5 e4+ Kd4 b6 Kd3 e6 c5 Ke5 a5 g6 a4 b7 f4 g7 f3 g5 f2 a3 f1B e7 h4 e8Q h3 g6 h2 Qb5 Be2 Qf1 Qa5 Nc3 Kc2 Qf6 Bf3 Nge2 Nd7+ Ke6 Ne7 g8N Bg7 b8N Ra7 e5 Qa6+ Nc6 Bh5 d3 Bb7 Nh6 Rg8 Qa5 Bh8 g7 Ng6 Nf5 Ba8 Ne4 c3 Kf7 c4 e6 Bb7 e7 Nde5+ Ke6 Ng4 Rd1 Ba8 Kf7 Bb7 Nd8 Ba8 Nf2 Bf3 Ra2+ Kb1 Ne4 c2 Nb7 c3 Bd2+ c1Q Ra1+ Kc2 Rb1 Qb2 Ra1 Rb8 g8Q Rd8 Qgg7 Rg8 Rh1 Qc1 Rg1 Qf1 Rg3 Qg2 Rb1 Nf2 Rg5 Ng4 Rb2+ Kd1 Ra2 c2 Rb2 c1Q Rc2 Qb1 Rc7 Qa1 N4c3+ Kc2 Nfd6 Qb1 Rd5 Qbh1 Qh7 Bg7 Nf5 Bh6 Qhg7 Bg5 Be1 Bc1 d4 Bb2 Bd2 Ba1 Bg5 Qg3 Bh6 Qgg2 Bd2 Nh8+
2BNq3/rP5P/b1r1QP2/R1Qb1q2/pp2n3/P2NnN1k/nbKN4/2B1Q3 w - - 0 1 illegal: No proof kernel
4Rb2/1rrp2Pp/1n1BPP2/4R2P/N5bN/2R1QN1q/qQ2nr2/b2R1K1k w - - 0 1 illegal: No proof kernel
3k1B1N/P2r1Q1p/5pr1/1N1P3P/1bN3K1/qPqB4/B1nrn1b1/2RbN2Q w - - 0 1 legal: proof: e4 d5 exd5 b5 c4 g5 cxb5 Bf5 f4 Bc8 fxg5 a5 b3 a4 Nc3 a3 Rb1 Bh6 Rb2 axb2 a4 Bf8 Ke2 b1B Kf3 c5 g4 e5 h4 f6 d4 c4 g6 Bh6 d6 Bd3 a5 Nc6 d7+ Ke7 a6 Bb7 g5 e4+ Kg4 e3 g7 e2 a7 e1R g6 Bc2 d5 Rc8 b6 Ba6 b7 Nb4 b8N Qa5 d8N Bd2 Bd3 Qa3 Nb5 c3 Nbc6+ Ke8 Nf7 Ne7 g8B Nf5 g7 Nd4 Nf3 Ne2 Bb2 Rf1 Qe1 Bd1 Na5 c2 Nc4 c1Q h5 Rd8 Bc3 Nc2 Bb4 Rd7 Bf8 Rf2 Qg1 Rh2 Ne1 Bb4 Qg2 Qd2 Rf1 Qc3 Qh1 Ncd4 Bb1 Nc2 Ba2 Rf2 Nfe5 Kd8 Ng6 Rh2 Be6 Rg8 Bf5 Rf2 Nh8 Rg2+ Kh4 Rg6 Bd3 Rh6 Kg4 Bc8 Bc5 Re8 Bf8 Re4+ Rf4 Rd4 g8Q Ba6 Qf7 Bc8 Bf5 Rd2 Bd3 Rb7+ Kh4 Bh3 Rf1 Bg2 Kg4 Rd7 Rg1 Ncd4 Nf3 Bc2 Rb1 Bd1 Rc1 Nc2 Ne1 Rg6+
K4Rr1/2rnpN1B/N1pNqQ2/1N3b1P/1b1rQ1q1/n1P1PP1Q/5B1n/2k5 w - - 1 2 legal: proof: d4 b5 g4 f5 gxf5 h5 b4 c6 a4 Qc7 axb5 Kf7 d5 Qb7 d6 Qc7 dxc7 Ke8 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 a5 Kb6 g5 h5 d5 f6 g3 e3 g4 f7 a4 Bd2 g2 Be1 g3 Nf3 g1Q Na3 d4 Ne5 g2 Qb1 Bg7 f8Q d3 Qf6 d2 Nf7 Bf5 Kb7 d1R c8N Nh6 b6 Rg8 b5 Ng4 Ncd6+ Kf3 Bd3 Nd7 Be4+ Ke2 f3 Bh8 Bf2 Kd2 Rh4 Nh2 Rf4 Rac8 Qb4+ Kc1 c3 Rd4 Ka7 Qh1 b7 g1Q b8Q Qg4 b6 Rc7+ b7 Bg7 Nab5 a3 Qa4 a2 Qc8 a1N Ka8 Nc2 b8N Na3 Na6 Qf1 Qb4 Qc4 Bd3 Qe6 Bc2 Rd3 Qe4 Rd4 Qf8 Qg1 Qh4 Rc4 Nh8 Bh7 Qe5 Re4 Qh3 Qgg4 Rf7 Ra4 Bf5 Rc4 Qe4 Bd4 Bg6 Bc5 Bf5 Rg6 Qh6 Bb4 Rf8 Rg8 Qf6 Bg6 Nhf7 Rd4 Nd8 Bf7 Bh7 Bg6 N8f7 Bf5
Rrq2K1R/p3P1N1/2kP3b/1Rb2P1r/n2pqQN1/P6n/2N1B1R1/n1Qb4 w - - 0 1 illegal: No possible last move, all moves rejected
K1Nk4/pB5P/qn1P3B/1r2b2p/2q1QPR1/1QB2B2/P2Q3n/1q1rNbn1 w - - 0 1 illegal: No proof kernel
1r2Qnbk/3QN1p1/BR1BrrP1/1P3pn1/1NN2bP1/1B1nq2K/1P4N1/2n5 w - - 0 1 illegal: No proof kernel
Q2r1bR1/B4Kb1/P2prpqB/1B3PPr/7N/1nRbRP1R/5Q1n/2bk4 w - - 0 1 illegal: No proof kernel
r4RR1/QPk1b1n1/4p2P/1rB1bp1n/1KQnqPb1/2RQ2b1/2NNRP2/8 w - - 0 1 illegal: No proof kernel
3B4/2nQnRQ1/r2p2B1/1bPP1r1R/bnPn1qN1/1B1kPRpK/1b6/6R1 w - - 0 1 legal: proof: f4 a5 b4 e5 fxe5 h5 g4 c6 gxh5 Bc5 Nc3 Bf8 Nd5 c5 bxc5 Ra7 Nb4 axb4 Bb2 Ra5 Bc1 Ra8 Kf2 Ke7 Kg3 Ke6 d4 Kf5 a4 Ke4 h4 f5 a5 g5 e3 b5 c3 b3 e6 g4 e7 b4 e8B b2 a6 b1N h6 b3 h7 b2 h5 Ne7 h6 Bg7 a7 Na3 Rh5 b1N Nf3 Rf8 h8R Nd2 h7 Qc7+ Ne5 Nb5 Ba3 Nb3 Bc4 Na6 Bg6 Nb4 Bb2 Rf7 Rf8 d6 h8Q Bd7 d5 N3d4 Qa4 Bf6 Kg2 g3 Qg7 Qa5 Rb1 Nc7 Bb3 Qb5 Rbh1 Qc4 Ng4 Kd3 Kh3 Be5 Qc6 Be8 Qb7 Ba4 Rg1 Bf6 Qb5 Be5 Qd7 Rf6 Be8 f4 Bg6+ Rf5 Rf7 f3 Ba1 f2 Bb2 Rb8 a8R Rb6 Raf8 Ra6 Ba1 Ndc6 Bb2 Qf4 Ba1 Nd4 c4 f1B+ Kh4 Be2 Kh3 Bd1 Bb2 Bb5 Bc3 Na2 Ba5 Nb4 Bb6 Na8 Bd8 Nc7 Rf6 Ndc6 R8f7 Bb2 Re6 Nd4 Re4 Qh6 Rf4 Qg5 Rf3 Qf4 Ba2 Bda4 Bb3 Ra7 Rf8 Ra5 Rf7 Ra6
6QN/nr2B1P1/2p2b2/1BP1Q2R/4Bp1Q/nP1bkBn1/1bP5/2nRKr1q w - - 0 1 illegal: No possible last move, all moves rejected
1K1n2N1/2pQ1q1P/Q3BBR1/Bn2r3/3n1rP1/pPBb1b2/P2b1k2/1R1Q1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 c4 g5 cxb5 d5 Nc3 h4 Ne4 d4 fxg5 d3 Ng3 hxg3 exd3 Nh6 d4 Ng8 d5 Qd7 Bc4 Qd6 Bf1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb6 h4 a5 b3 e5 d6 f5+ Kd5 g2 d7 f4 g6 a4 h5 a3 h6 e4 h7 f3 g7 e3 Rb1 f2 Nh3 g1N Bd2 e2 Nf4 e1N Bc3 Nc6 Ng6 Ne2 Ne7 Nh6 g8Q Ra4 Qg6 Bb7 Ng8 Qe7 d8B Ng3 Bc4 Nf7 Rh6 f1B Qe6 Nf3 Rg6 Qe8 Bf6 Nd6 Qd7 Bd3 Ba5+ Ka7 Kc5 Qf7 d5 Bh6 Bfc3 Ba8 b6+ Kb7 Bb2 Bd2 Bbc3 Nb5 d6 Nfd4 Be6 Nd8 Kd5 Ka6+ b7 Nf1 Kc5 Rb4 b8Q Bf3 Qbc8+ Ka7 Qc6 Ra4 d7 Rb4 Nh6 Re8 Ng8 Nf5 Qd6 Rf4 Qd5 Nfd4 Qc4 N8c6 d8B Re7 Qd7 Kb7 Bd5 Re5 Bf6 Ka6 Qa4 Nd8 Qc4 Re3 Be6 Re5+ Kb4 Kb7 Qcc6+ Ka7 Qa6+ Kb8 Qad6 Kb7 Bb6 Nf5+ Ka5 Rc5 Qd4 Re5 Qc8+ Kc6 Ka6 Bde2 Bba5 Bd3 Qdd7+ Kc5 Qa8 Bd5 Bcb4+ Kd4 Bc3+ Ke3 Qb7 Bf3 Qbc6 Nbd6+ Ka7 Nd4 Qa6 Kf2 Kb8 N6b5
K2n1Qqn/3nr3/4p1b1/bN2Pn1p/1R2Q3/1RrB2PP/1QR1P3/b1QN2k1 w - - 0 2 legal: proof: c4 d5 cxd5 b5 f4 b4 b3 Nc6 Bb2 Qd6 Bf6 Qe5 fxe5 Nb8 a3 gxf6 axb4 f5 b5 f4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Kd4 a5 Kc5 f3 d4 f2 g3 f4 d6 Ke6 b6 Kf5 d7 Kg4 d8R f3 d5 a4 b7 a3 b4 a2 b5 Nh6 b6 Bf5 d6 e6 Qd2 Ra7 Qc1 Bg6 Re8 Nf7 Nc3 Nd8 Rb1 a1B Bg2 f1Q Rb3 f2 Nd1 Nd7+ Kb5 c5 b8Q c4 b7 c3 Nf3 c2 Nd4 Be7 Be4 Kh3 Bd3 Kg2 h3 Bg5 Qc7 Bd2 b8Q Ba5 Qc4 Rh7 Rf8 Rc7 Ka6 Re7 Rf4 Rc8 Qa4 Rc3 Rg1+ Kh2 Ka7 Qg2 Qab4 f1N Nb5 Ne3 Qe4 Nf5 Ka8 Qf3 Rf1 Qg4 R1f3 Kg1 Qbb7 Nc5 d7 Qg5 Qec6 Qg4 Rfb4 Qg5 Qb2 c1N Rff4 Qg4 Rfc4 Qg5 Qcc7 Qg4 Qe4 Qg5 Bb1 N1d3 Qc8 Nf4 Bd3 Qh6 Qc7 Qg7 Qcc6 Qg8 Qc8 Ndb7 d8Q Nd7 Qf8 Nd8 Rc6 Bh7 Qc7 Ng6 Rcc4 Nh8 Qc5+ Kh2 Qce3 Bg6 Qec1 Kg1 Rc7 Rc4 Rc5 Rd4 Rcc3 Rc4 Rc2 Rc3
5k2/r1Pr1qpp/1P1RK3/b1R3P1/1PQ2N1R/1BB1b1B1/2Q2Rbb/3n1rn1 w - - 0 1 illegal: No proof kernel
n3Nn2/1N3B2/2K1QrpR/1PPP1nk1/5p1q/3r2rQ/r2BQPQb/2B2b2 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 c5 b4 Bf5 b6 Be4 b5 Bf5 Ra4 Bc8 Rb4 cxb4 Ke2 a5 Ke3 e5 Ke4 Ke7 d4 Kf6 h4 g6 c4 a4 b7 a3 h6 b3 h5 b2 c5 a2 h7 a1N d6 Bd7 Kd5 e4 h6 e3 Nd2 b1R Ngf3 e2 Ng5 e1R Nge4+ Kf5 Bc4 Nb3 Qe2 Rg1 Nf6 Rg3 Nde4 Ra2 Ne8 Na6 b8Q Qh4 Qc8 f6 Bd2 Rd1 Qc6 Bc8 d7 Bd6 d8Q Bb7 Bc1 Rdd3 Qe7 Ba8 Qcb7 Nc7+ Kc6 Bf4 N4d6+ Kg5 Q7e3 f5 Bf7 Nf6 Qe6 Rf8 h8Q Nd7 h7 Rad2 Bg8 Rf6 Bf7 Ra2 Rh3 Nf8 Bd2 Qg4 Rh6 Qh4 Kb6 Qg4 Qg2 Qh4 Bc1 Be4 d5 Na8+ Kc6 Bf3 Bd2 Bg4 Nb7 Bh3 Qgf3 Bf1 Qfe4 Rge3 Qg2+ Bg3 Bc1 f4 Bd2 Rf5 Qc3 Rf6 h8B Rf3 Qh3 Bh2 Qg2+ Rg3 Bc1 Rf5 Bd4 Rf6 Bde3 Bg1 Bed2 Nd4+ Kd6 Nf5+ Kc6 Bh2 Qb3 Rd4 Qbe3 Rd3 Q3f3 Rg4 Qfh3 Rgg3
4knQ1/1Q2bn1p/Bn1rN1RP/2q3P1/2P2R1Q/PbBqB3/2rp3K/2B4n w - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 bxa5 Nc6 e4 Nb8 exf5 g5 f4 Qc7 f6 Qd8 f5 Ra7 Nc3 Ra6 Nd5 Ra8 Nf4 gxf4 Kf2 d5 g4 e5 Kg2 b5 h4 e4 h5 d4 a6 e3 a3 e2 g5 e1Q a7 f3+ Kh2 f2 c6 d3 c7 b4 Nf3 d2 Ba6 b3 Nd4 b2 Ne6 b1N Qg4 Nc3 Qh4 Bd7 c8Q Nd5 Qb7 Qe3 c4 Nh6 Re1 Nf7 h6 Qc5 Rf1 Bb5 Rb1 Ba4 Rb6 Nd7 Rc6 Rb8 a8Q Bb3 Rb6 Nfe5 Rd6 N5b6 Rc6 Bd6 f7+ Ke7 f8B+ Ke8 f6 Be7 Bg7 Nf8 Rg1 Qdd4 Rg4 Nf7 Rf4 f1N+ Kg2 Ng3 Kh2 Qd3 Rd6 Qc7 Rc6 Ne5 f7+ Kd7 Rf2 Nfg6 Rf5 Rhd8 Nd4 Na4 Qb6 Bd1 Qb3 Nh1 Rf4 Qc8 Rcf6 Qc5 Ne6 Rb5 Qb1 Rb2 Bh8 Ra2 Qbb8 Nb6 Qbb7+ Qc7 Qab8 Bb3 Bg7 Rc2 f8B Bc5 Bd6 Nf7 Be5 Be7 Bd4 Ke8 Be3 Qc5 Q7a8 Kd7 Qbb7+ Kd6 Bh8 Rd7 Qg8 Nf8 Rg6 Rd8 Qa8 Kd7 Qb7+ Ke8 Bc3 Rd6
Q1N3n1/1RK2pNk/1Br1QP1B/2P1rNp1/q4q2/B1P2Bbb/1P2rn2/3r4 w - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 g4 Rh7 gxh5 Rh6 Ra4 Rh8 Rd4 exd4 Kd2 d5 Kd3 a5 h4 a4 e4 a3 e5 a2 h6 a1Q e6 g6 h5 Ra5 b6 Ra2 e7 Ra3+ Nc3 Bg4 h7 Nh6 b7 Bg7 Nf3 Ra6 Nh4 Bd7 Rh3 Rc6 Ne4 Be5 Bg2 Ng4 h6 Qb1 Qe1 Qc8 Bf3 Qc7 Nf5 Qa1 Rh4 Rg8 h8B Qa4 h7 Bg3 Bh6 g5 Bf6 Be6 h8Q Nd7 b8B Qf4 Ba7 Rd6 Bb6 Rf8 Bfg7 Ndf6 Qe3 Rg8 Bf8 Rg6 Qe1 Ng8 Qe2 Bc8 Qe1 Rde6 Qe2 Re5 Ned6+ Kd7 Qe4 Ke6 Qe1 Bd7 Nc8 Rf6 Qa5 Re2 Qa8 Ke5 Qh7 Rd6 Rh3 Kf6 Qh8+ Kg6 Qe5 Kh7 Qe6 Re5 Rh4 N4f6 Rg4 Qc1 Re4 Qf4 Re1 Ne4 Ra1 Qc6 Ra7 Qa4 Rb7 Qg4 Ke2 d3+ Ke3 d2 Kd3 Qh4 Ke3 d4+ Kd3 Qa1 Kc4 d1R Kb4 Qc1 Ka5 d3 Ka6 d2 Ka7 Qh3 Kb8 Re1 Kc7 d1R Nh4 Qf5 Qea2 Rg6 Be2 Rd3 e8N Ne7 f4 Ng8 Bfg7 Ree6 Bf3 Qd1 Bc3 Nf2 Ng7 R1e2 Bb4 R6e5 c3 Qa4 Ba3 Rgd6 Qb3 Qfe4 f5 Qf4 f6 Bh3 Nhf5 Rd1 Qe6 Rc6+
1qB2n1k/3qB3/3q1Rq1/1b3Qr1/1K2QPp1/P2pb1nP/rNRP2R1/2R2Q2 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c6 b4 Ra6 bxa5 Ra8 Nc3 c5 Nd5 Nc6 Nb4 cxb4 Bg2 Nb8 Bh3 Ra7 Bf1 Ra8 f4 Kf7 c4 d5 h6 e5 a6 g5 c5 b5 a7 e4 h3 e3 h7 Kg7 c6 g4 c7 d4 Ke2 b3 Kd3 b2 Rh2 b4 Kc4 b1Q Nf3 e2 Ne1 b3 Rg2 b2 Nd3 Bd7 c8R Ne7 Kb4 e1Q Rc2 Rg8 h8R Bb5 Rh6 Nd7 Rf6 Qe5 Be2 Qc8 Qf1 Kh8 Bf3 Qd8 Bb7 Rg5 Bc8 Qe8 Re6 Qd8 f6 Nf5+ Rd6 Bg7 f7 Nf8 Rdc6 Qd7 Rf6 Ng3 a3 Rb8 a8Q Qee6 Qe4 Qed6+ Rc5 Qc2 Ra2 b1Q+ Bb2 Qe1 Bc3 Qeb1+ Nb2 d3 Ka5 Qb3 Bb4 Qbe6 Rc1 Qf5 Bc5 Qg6 Kb4 Rb7 Rf5 Bd4 Rf6 Q6c6 Be7 Be3 Rc5 Qcc7 Ra1 Qb8 Rc2 Qa2 Rd1 Qae6 Rdc1 Qed6+ Kc3 Re5 Nd1 Nh7 Re6 Ba4 Kc4 Rb1 Nb2 Bb5+ Kb3 Rg5 f8Q+ Qg8 Qf7 Ra1 Qff5 Qg6 Rf6 Nf8 Kc3 Ra2 Kb3 Qdb6 Kb4 Q6d6+
2KQ4/2n2B1R/2P1Nr2/R1q1p1p1/R3N3/nQb1Q1PP/1R2Pqn1/k1b1r2n w - - 1 2 illegal: No extended proof kernel
3b4/4BQK1/1qNb2qR/1r1p3b/3QQ1p1/Pr2P1b1/1NBP3P/1nNNn1k1 w - - 0 1 illegal: No proof kernel
1NqR1r2/r1BP2p1/5pP1/n3QP2/1nBN2r1/PB3KbQ/1N1k1n1n/n2N4 w - - 0 1 legal: proof: d4 a5 b4 d5 bxa5 Kd7 e4 Nh6 c4 Na6 cxd5 Nc5 d6 Kc6 d7 Na6 d5+ Kc5 d6 Nb8 Kd2 Kc6 Ke1 Ng8 g4 h5 a3 b6 g5 Bb7 Ba6 Kc5 Qc2+ Kd4 Qd1+ Ke5 Bf1 Bd5 exd5 Kf5 Ra2 Ra6 Rc2 Kg6 Rc4 Ra8 Rg4 hxg4 Ke2 Kf5 f4 Ke4 h4 e5 g6 c5 f5 b5 h5 c4 h6 f6 a6 b4 a7 b3 h7 c3 Rh3 b2 Bg5 c2 Rb3 g3 Nh3 g2 Rd3 g1R Qe1 Qc8 d8N Ne7 d7 Rg4 d6 Nd5 Bf4 Nb4 Ne6 N8c6 d8N Na5 Nd4 Be7 Rd2 Rf8 N8c6 Bd8 h8Q Bc7 Qg3 c1N+ Kf2 Bb8 Bc4 Ncb3 Kg2 Bc7 Nb8 Na1 Qh7 Rh4 Qh2 Rg4+ Bg3 Ke3 Nf2 e4 Nc3 b1N Q7h3 Nb7 Na4 Na5 Rd1 Nd2 Nb2 Nf1 d7 N1b3 Rc1 Kd2 Nfd1 e3 Kf3+ e2 Bd6 Na1 Qe5 Bd8 Bc7 e1N+ Kf2 Ned3+ Kf3 Be7 Bb3 Nf2 Rc6 Nd5 Re6 Bb4 Re8 Bd6 Rd8 Nb4 Nbc6 Rb8 a8B Rb7 Nb8 Ra7 Be4 Rg5 Bed5 Rg4 Qeh2 Bg3 Bdc4 Bh4 Qd6 Bg3 Qe5 Nh2+
3Q2N1/n1b1R3/p1QP1p1b/5PPq/b4kr1/P3rNNB/1Nq1r1b1/B3K1B1 w - - 0 1 illegal: No possible last move, all moves rejected
rQq1n1B1/Q1Rn4/pQN2b1B/1PBb1P2/PnpQ4/4p1KP/1rb5/N6k w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 h5 cxb5 Nf6 g4 Ng8 gxh5 Bd6 Nd2 Bc5 Nb1 Bf8 a4 f5 e4 Bb7 b4 Rh6 e6 Ba6 e5 Rh8 Ra2 Bb7 Re2 Bc8 Re4 fxe4 f4 Ke7 Kf2 d5 h3 g5 h6 c5 f5 a6 b6 g4 b7 e3+ Kg3 d4 h7 d3 Nf3 d2 Na3 Bg7 Nd4 Bf6 Bc4 Nd7 b8Q Bb7 Nac2 Bd5 Qb6 Qc8 Ba3 Rb8 Qa1 d1B Qc3 Rb7 Na1 Bc2 Rc1 Rb8 Ndb3 Ra8 Qd4 Rb8 Na5 Ra8 Kf4 g3 b5 g2 Qa7 g1N Kg3 Nf3 Bb3 Ne1 Nc6+ Ke8 e7 Kf7 Qb6 Nd3 e8Q+ Kg7 e6 Kh6 e7 Kg5 Qa7 Nb4 Qd8 Kh5 Qdb6 Kg5 Kh2 Kh5 e8Q+ Kg5 Qb2 Kf4 Qd4+ Kf3 Qee5 Kf2 Qeb8 Kf3 Rg1 Kf2 Rg7 Kf1 Kg3 Kg1 Re7 Kh1 Rf7 Bf3 Be6 c4 Rg7 Bd5 Re7 Ne5 Rc7 Nd7 Bf7 Ne7 Be6 Rd8 h8B Ng8 Bf7 Nh6 Bg8 Nf7 Bg7 Nd6 Bf8 Ne8 Bh6 Nf8 Bg7 Rd6 Bh6 Nd7 Qg4 Be6 Qh4 Rd2 Qf4 Bd5 Qfd4 Nd3 Bc5 Nb4 Qh4 Bd1 Qf4 Rb2 Qd4 Bc2
r6q/4pn2/1n2Q1rR/BB1NP2p/1Q1Pk1P1/Npbr4/BB5P/1b2bKQ1 w - - 0 2 legal: proof: b4 d5 c4 a5 bxa5 g5 cxd5 f5 e4 g4 a4 g3 e5 Kf7 fxg3 Nf6 g4 Ke8 g5 Ng8 Ra3 Nc6 Re3 Nb8 Re4 fxe4 g4 Kd7 d4 c5 g6 b5 g7 h5 d6 Kc6 a6 Kd5 a5 e3 a7 e2 a6 b4 d7 c4 Na3 c3 Bb2 c2 Nh3 c1R Nf4+ Ke4 Nd5 Nh6 g8B Qa5 d8B Bf5 Rg1 Qb5 Ba5 Nf7 Rg2 Rc4 Rf2 Qe8 Qa4 Bg6 Rf6 Nd7 Rd6 Bh7 Rh6 Rc3 Qc6 Rh3 Qe6 Rd3 Kf2 e1B+ Kg1 Rc8 a8Q Rc6 a7 Nb6 Qb7 Bf5 a8Q b3 Bh7 Bg7 Be2 Bf6 Kf1 Bg5 Qac8 Rd6 Qc1 Bgd2 Qa1 Bc3 Qd1 Re3 Bb5 Rd3 Qa1 Rg8 Qb8 Rd8 Qbd6 Ra8 Qb4 Rg6 Qd1 Qh8 Qb1 Bf2 Qe1+ Be3 Qf2 Bf4 Qg1 Bg3 Qc8 Kf3 Nc4 Rd2 Ba3 Be1 Qe6 Rg7 Bb2 Bc2 Bd3 Rg6 Na3 Rd1 Bdc4 Be4 Bd3 Rd2 Bb1 Rd1 Ba2 Bb1 Nf6 Rd3 Nd5 Ke4
2Br1qQ1/5n2/QNbPp1pB/4QP2/6r1/3Rb2R/1pP1KnP1/B1nQb1k1 w - - 0 1 illegal: No proof kernel
2kb2B1/B1B1p3/qRrp4/1rQ1n1b1/1N2b3/K2BPR2/2P1PQPp/3Qnn2 w - - 0 1 illegal: Other
k3qN2/pqQR4/1rb1Nb1p/R2P1n1P/q2R2PQ/R2Q3B/1rp1n2P/3K4 w - - 0 1 illegal: No possible last move, all moves rejected
QKq1N3/1NP1Rbp1/QR2p3/P5B1/3RP1p1/2krNnP1/4b2r/2qn1b1N w - - 0 2 legal: proof: f4 h5 b4 c5 d4 a5 dxc5 e6 bxa5 Qc7 f5 Be7 e3 Kd8 f6 Qb6 fxe7+ Kc7 Bc4 Kc6 Be2 Qd8 Bg4 hxg4 Kf2 Kb5 Kg3 Kc4 Kf4 f5 Ke5 b5 Kd6 b4 e8N b3 h4 f4 a4 f3 c6 b2 e4 f2 h5 f1B c7 Ba6 c8N Qf6 Kc7 d5 g3 d4 h6 d3 h7 d2 Nc3 b1B Nd5 Qf2 Qe2+ Kd4 c4 d1Q c5 Bbd3 c6 Qf8 Rb1 Bdc4 Bg5 Qe1 Nh3 Nh6 Ne3 Bab5 a6 Qc1 a5 Kc3 a7 Nd7 Nf2 Ne5 Ncd6 Rd8 a8Q Nf5 Nb7 Rd3 Kb8 Qf7 c7 Nf3 Rg1 Ba4 Nh1 Qd7 Rb6 Bcb5 Qa2 Be2 Rd1 Bf1 Qe2 Bc4 Nc2 Ne3 Rd2 Nd1 Ne3 Rf8 h8R Bab5 Rh6 Rh8 Rf6 Rh2 Rf7 Rd4 Qg2 Bce2 Re7 Rd3 Qh3 Qd4 Qa6 Qa4 Qh8 Bc6 Nf6 Be8 Qg8 Bf7 Ne8 Rd5 Rd4 Qd7 Qh7 Rd6 Qf5 Rd5 Qa8 Rd6 Qb5 Rd5 Qba6 Rd6 Ra4 Rd3 Rd4 Qc8+
r5Q1/P1B1BK1p/k2b3B/4r3/2p2p2/n1r1qP1P/bQ2R2P/1B1qNQnN w - - 1 2 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Ra7 d4 Ra6 d6 Ra8 a4 Be6 d5 Qh4 Ra2 Bd7 Rd2 Qh3 gxh3 Bc8 Rd4 exd4 Kd2 Kd7 Kd3 g5 Kc4 c5 e4 f5 f3 g4 e5 g3 a6 d3 a5 b6 e6+ Kd8 d7 Kc7 a7 Kb7 d8B g2 e7 d2 e8Q Na6 d6 b5+ Kd5 b4 d7 b3 Ke6 b2 Na3 b1R Ne2 g1Q Be7 Nc7+ Kf7 Rb5 d8B Qe3 Ng3 Ka6 Bd3 Nf6 Bb1 Ne4 Qf1 d1Q Nc2 Nc3 Ne1 Ne2 Rg1 Rb3 Nh1 Rc3 Rg2 Nb5 Bc7 Ng1 Re2 Na3 Bd2 Bd7 Qb8 c4 Qb3 Ba4 Qb2 Bb3 Bc1 Ba2 Bd2 Re8 a8Q+ Qa7 Bh6 f4 Qd5 Qe3 Qg5 Rg8 Qgg2 Rg5 Qg3 Re5 Qg8 Ka7 a6 Ra8 Bf6 Bc5 Be7 Bb4 Bb8+ Kb6 a7 Ka6 Bc7 Bd6
1RbNBR1R/1Q1nb3/n3Q1pN/bRP1p2K/4P3/3P2p1/P1r2N1k/5qrq w - - 0 1 illegal: No possible last move, all moves rejected
q7/1nB1QN2/Kp1RPb2/1PrB3R/1b3p1n/P1p1kP1B/2Q2qB1/1r4qQ w - - 1 2 illegal: No proof kernel
2R2rNq/2Kn2B1/q2nN1RP/P2RP1pr/3p2N1/6PQ/k2pn1R1/3Q1bb1 w - - 0 1 illegal: No proof kernel
Rq3B2/rNP1rN2/4pP2/QKR3q1/2Q1PQ1R/2pnP3/3Rnp1b/1b3kr1 w - - 0 1 illegal: No proof kernel
2Q5/p2nNq1P/q1q3R1/P1Pp3k/4K2n/bpQPN1b1/1B2rrBN/Q1N5 w - - 0 2 illegal: No possible last move, all moves rejected
N4Nn1/qk3KpQ/r1p1b2b/nP6/2P2Bp1/2rQ1P1B/QP1Qr3/2B1R1q1 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 Na6 gxf5 Nb8 Ra4 Ba6 Rf4 Bc8 Rg4 hxg4 Kd2 a5 Ke3 d5 Kd4 Kd7 e4 c6 c4 Kc7 h4 a4 f3 a3 h5 a2 h6 a1Q e6 Qe7 Ke5 d4 f6 d3 f7 d2 h7 Ra6 Bh3 Ra7 Nc3 Qa2 Nge2 Rb7 Na4 Qaa3 Nd4 Na6 Nb6 Nc5 Na8+ Kb8 Re1 Qh4 e7 Qd3 e8Q Be7 f8B Bg5 Qg6 Bf5 Ne6 Rb6 Bd6+ Kb7 Nf8 Qf2 Qa4 d1R Qa2 Ra6 Qh6 Bd8 Qd2 Qde3 Bb8 Be6 Kd6 Nf6 e5 Nb3 Bc7 Rg8 h8Q Qa7 Qh7 Qg1 Bb8 Bb6 Ke7 Be3 Bd6 Bh6 Bc7 Bf7 e6 Na5 Qdd3 Rd2 Bf4 Rc2 Qd2 Rc3 Qdd3 Be8 Qd2 Bd7 Kf7 Rh8 e7 Ng8 e8Q Bf5 Qed8 Bc8 Kg6 Be6 Q8d3 Nf6 Nd7 Re8 Nf8 Ng8 Q3e3 Bd7 Qed3 Re2 Kf7 Be6+
bQq5/R4npk/PKp2p2/b1NQQn1r/6qB/1PqN1P2/B3P3/4rQN1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 h5 cxb5 Nf6 g4 Ng8 gxh5 a5 b3 a4 Nd2 a3 Rb1 Nc6 Rb2 axb2 a4 Nb8 h4 b1Q f3 d5 Kf2 d4 h6 d3 Ke3 c6 e6 f6 b6 Rh7 b7 Qa5 Kd4 Be7 h5 Kf8 Ne4 d2 Nc5 Qf5 Bh3 Qb5 a5 Qa6 Qf1 Qb1 Bf5 Bd8 e7+ Kf7 Be4 Rh8 h7 Bc7 h6 Nd7 b8Q d1Q+ Bd3 Bg3 Bg5 Be1 Bh4 Qbc1 Qd6 Bd2 Bb1 Bb7 Ba2 Kg6 Qd5 Ne5 e8Q+ Nf7 Qb8 Ne7 Qbe5 Rhg8 h8N+ Kh7 Ng6 Rh8 Nf4 Bb4+ Nfd3 Qc3+ Ke3 Rad8 Ke4 Ba8 Ke3 Kg6 h7 Qc8 a6 Nf5+ Ke4 Rhe8 h8Q Re7 Qe8 Kh7 Qf8 Red7 Qfd6 Rh8 Qb8 Qdc1 Rh2 Qg8 Qde6 Q3b2 Qbe8 Qe1 Bg3+ Kg6 Nf4+ Kg5 Nb7 Rd1 Q6d5 Qbc3 Nd3 Kg6 Rh7 Qf8 Bh4 Qg3 Qed8 Re1 Q8d6 Rg8 Rh8 Qb8 Qd8 Re8 Rf8 N7h6 Rf7 Rh8 Re7 Qc7 Qb8 Qc8 Rd7 Nf7 Rc7 Rh5 Re7 Qc1 Rc7 Ne7 Kd4 Kh7 Rd7 Qa1+ Kc4 Nf5 Rc7 Bd2 Kc5 Bb4+ Kb6 Qc3 Nbc5 Qg4 Ra7 Ba5#
1BqK3b/rpPNr3/N2Q1Nq1/2p2n2/1P1p4/q1Pb4/kPn1N1R1/1R1RQ3 w - - 1 2 illegal: No possible last move
1NNn4/2bQ1PPR/2pR1prq/k1q5/2n1r2q/1PK1p2Q/2P1b1QR/6BR w - - 0 1 illegal: No proof kernel
3R1R1B/2r5/1Pb3q1/Qp3P1k/1B2bnr1/B4B1p/1QP2pQP/b2N1bnK w - - 0 1 illegal: No proof kernel
B2N4/RPN3p1/3rP1P1/q3b3/1nQpkP2/3R1rbQ/2p1N2n/b1QbQ1K1 w - - 0 1 illegal: No proof kernel
n1b2B1Q/2p1p1p1/BP1NP3/b1bB1Q1K/R1RR1P1n/r2r3P/1k5q/6Rb w - - 0 1 illegal: Other
Qn3qR1/B4PNP/2b1p3/p5Pb/Pkp1rr1N/b2bN1R1/2Q4n/3R1NK1 w - - 0 1 illegal: No proof kernel
1kN1B2b/p1qQn3/2q1K3/PP2N1p1/n1P1BrP1/1r2r2N/3pQ1B1/3q1RB1 w - - 0 1 legal: proof: f4 e5 fxe5 c5 c4 b5 d3 Bb7 cxb5 c4 Nc3 Bd5 Nb1 c3 Qd2 Be6 Qd1 Bc4 dxc4 h5 g4 h4 b4 Qg5 a4 Qf5 Nd2 Qg5 Rb1 Qd8 Rb2 Rh6 Rb3 Rh8 Rb2 Qa5 Ne4 Kd8 Rd2 Na6 Rd6 Nb8 Nd2 Ke8 Ra6 Qd8 Rf6 Be7 Rf3 Bf8 Rg3 hxg3 h4 f5 e4 g5 Ke2 d5 Kf3 Kd7 e6+ Kc8 a5 g2 b6 f4 h5 c2 b5 d4 e7 d3 e8B Bb4 h6 Kb7 e5 Nd7 Ke4 f3 Kf5 f2 h7 Nc5 e6 Qd7 Ndf3 Bc3 Be3 c1Q Qe2 d2 Nh3 g1R Bg2 f1Q Bg6 Kb8 b7 Qfd1 Ne5 Qc6 e7 Qa3 e8B Re1 Rf1 Na4 Bg1 Qc7 Ke6 Ne7 B6e4 Rf8 h8N Qac5 Nhf7 Q5c6+ Nd6 Rf4 Qd3 Re3 Qe2 Qc5 Nc8 Rd3 Ng6 Bh8 Ne5 Rb3 Bd5 Qa1 Nf7 Nf5 Bd7 Q5c6+ Ncd6 Q7b6 Bdf3 Kc7 Bd5 Rd8 Be8 Qe1 Bde4 Qd1 Ne5 Re3 Kf7 Rb3 Nc8 Rdd3 b8Q+ Kd8 Nd7 Re3 Qd6 Qb8 Qd5 Kc7 Ne5 Qbb7 Qdd3 Kb8+ Qd7 Qcc7 Ke6 Ne7 B4g6 Qa8 B6e4 Qac6+
Q7/3rKP1q/1Q1pR2p/2BPp1kN/2b2n2/Nb1B1q1P/QPB2r2/B1b4q w - - 0 1 illegal: Other
1bqBnR1n/n6Q/3kNqBp/1p2Rp2/1PP3b1/r2K3P/7P/1Q1BQ1Bq w - - 0 1 illegal: No proof kernel
B2q1r2/b2p2Bk/4NPp1/2NqpQ2/3Pb1P1/KR2qP2/1NQB2B1/rr1n4 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 f5 e4 Bb7 exf5 Qc7 b6 Ba6 b5 Bc8 Ra4 Qd8 h4 Nc6 Rb4 cxb4 h5 g6 h6 Nd4 Nf3 Ne6 Ng1 Ng7 hxg7 Bb7 Qh5 Ba6 Qd1 Bc8 g4 Kf7 d4 a5 Kd2 h5 c4 b3 Kc3 b2 Kb3 e6 c5 a4+ Ka3 h4 b7 h3 b8B h2 b6 Qf6 f3 Bd6 b7 Ra5 Nd2 b1Q Qc2 Bf4 c6 Ne7 g8B+ Kg7 c7 Qb5 Nh3 Qd5 Ng5 Rb5 Bg2 Rb1 Nc4 Kh6 Rg1 h1Q Nb2 Kg7 Rf1 Qg1 Bd2 Qe3+ Qd3 Qf8 Rc1 Kh6 Rc3 Qd8 Rb3 Be5 f6 Nf5 Ba7 Bd6+ Bc5 e5 b8N Bb7 c8Q Ba8 Na6 Bb8 Qc6 Ba7 Ne6 Bb7 Bf7 Kh7 Bf8 Rg8 Bg7 Rf8 Nac5 Ba8 Kb4 a3 Qe4 a2 Ka3 Qf4 Qd3 Ne3 Qf5 Nd1 Qa4 Qe3 Qc4 Qb7 Qcc2 Qb5 Nc7 Be4 Bd5 Qc4 Ba8 Qd5 N7e6 a1R+
3Qb1B1/r2P4/RNRb2pn/3K1kPR/Nq6/1r1p2QP/1r1P2p1/rQ1R2q1 w - - 0 1 legal: proof: g4 f5 a4 h5 c4 d5 e4 b5 axb5 h4 exf5 d4 b3 Nd7 Ba3 Ndf6 Bd6 Nd5 Bg3 hxg3 cxd5 Qd7 Bh3 Qd6 Bf1 Qd8 Ke2 Kd7 Kf3 a5 Ke4 c5 f4 e5 b4 a4 b6 c4 h3 g2 b5 a3 f6 a2 f7 g6 b7 c3 b8Q c2 f5 c1Q d6 Bg7 f8Q Qe8 f6 Ke6 g5 Bd7 b6 Qa3 f7 Qc8 b7 Bh6 Nc3 Qb2 Nf3 Qb6 Qb1 Qcc5 Qfd8 Ra7 f8R Qcb4 Na4 Be8 d7 Bg7 Rf4 Bf8 Rh4 Nh6 Rh5 Bd6 Qbc7 Q6c5 b8R Qc1 Bb5 Qg1 Rb6 Rf8 Rc6 Rf5 Nh2 Rf3 Ng4 Rb3 Ne3 d3+ Nc4 Rb2 Qb6 Rb3 Qe3 Rb2 Qg3 Rb3 Kf3 Kf5 Ncb6 Rb2 Bc4 Rb3 Qbe1 Rb2 Rd1 a1R Bg8 Ra3 Ra1 Rab3 Qc1 Qf1+ Ke3 e4 Qb1 Qc1 Nc4 Qf1 Kd4 e3 Kd5 e2 Ncb6 Qf2 Rd1 e1R Nc3 Qg1 Ra6 Re4 Nca4 Rc4 Qa1 Rc1 Qa2 Ra1 Qb1 Rba3 Rdc1 Rc3 Rd1 Rcb3
B2R1NR1/1N1P3p/2q1K1nq/1Q1Nb3/QNR1p3/2pP1n2/q3P2P/1rkr3q w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bb4 f5 Bf8 b3 Qd7 Ba3 Qd8 Be7 Be6 Bf6 gxf6 fxe6 f5 Ra3 f4 Ra5 Qe7 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 Kg4 c5 d6 a5 e7 f3 d3 c4 d7 f2 b4 a4 b6 a3 b5 a2 b7 Qc8 b6 Bg7 Nf3 Nc6 b8N Nd4 e8N+ Kg6 g3 Ne7 Bg2 f1Q Ng5 Qf6 b7 Ra3 Bc6 e4 Nd6 Rg8 Ne6 Rb3 Nc3 Rb1 Nd5 Qc7 Rg1 c3 Na6 Qg5+ Kh3 f5 b8Q f4 g4 f3 Ba8 f2 Qb5 Qc6 Nb7 f1Q+ Rg2 Qc1 g5 Kf5 g6 Be5 g7 Qh1 Rf2+ Qf4 Qdb3 Rf8 g8R Ng6 Qd1 Rb4 Rb1 a1Q Qda4 Qa2 Rf3 Rb2 Rff1 Rd2 Rb4 Rb2 Rc4 Rb1 Nec5 Kg5 Nab4 Qc1 Rf7 Qcd2 Re7 Rff1 Ree8 Rfd1 Ne6+ Kf5 Nf8 Nf3 Ne7+ Kf4 Rd8 Ke3 Kg4 Qc1 Kf5 Kd2 Ned5 Qcc2 Rc8 Kc1 Re8 Qd2 Rd8 Qc5 Ke6 Qh6 Qba6 Qc7 Q6b5 Qc6+
1Bn2qN1/4pnb1/4BR2/pP2QQ2/1K3nPp/P1R5/1nqkP1RB/rB4r1 w - - 0 1 legal: proof: g4 d5 h4 b5 c4 g5 cxb5 Bg7 hxg5 Bh6 f4 Kf8 Na3 Bf5 Nc4 Bg6 f5 dxc4 fxg6 Ke8 Qb3 Bg7 Qd1 Bf8 d4 Kd7 Kd2 Ke6 Kc3 Kd5 b4 Ke4 g7 f5 d5 h5 b6 c5 b5 f4 d6 f3 g6 h4 d7 f2 b7 Qc8 d8Q Nc6 b8B Nh6 g8R Nf7 Nf3 Bg7+ Nd4 Qf5 Bb2 Ke3 Bg2 f1Q Qc8 Qb1 Re8 Rf8 Rh2 Qbf5 Be4 Q1f3 Kc2 c3 Kb3 c2 Rg2 c1N+ Kc3 c4 Bb1 Q5e4 Qf5 Nd3 Rc8 Nf4 Qc2 Rd8 Qe5 Rd7 Ba3 Rc7 Bd6 Qf1 Kb2 c3+ Kb3 Qf2 Qb2 c2 Nf5+ Kd2 Nh6 Qf5 Ng8 Qc5 Qa3 c1N+ Ka4 Qf6 Qf3 Ncd3 Qfe4 Rd7 Q4f5 Nb2+ Kb3 Qc2+ Ka3 Ncd8 Kb4 Nb7 Rc3 Rd8 Bdc7 Rd3 Bd6 Rg3 Bdc7 Nbd6 a3 Nc8 Bd6 a6 Bdc7 Ra7 Bd6 Rd7 Bdc7 Bh8 g7 Rd6 Bb6 Rdd3 Bg1 Rdf3 Bh2 Rf1 Ba2 Rg1 Rf1 Rh1 Rff3 Ra1 Bb1 Qh6 Rgf2 Rg1 Rg2 Kd1 Rc6 Kd2 Rfc3 Qf6 Re6 Nd8 Rb6 Qf8 Rf6 Nf7 Nh6 Nd8 g8B Bg7 Be6 Nf7 Ng8 a5+
R3nr1b/p1pQ4/3P1Q2/K1np1Q2/n1PPb1NB/P1kN2r1/n1NNB3/5n2 w - - 2 3 legal: proof: g4 h5 gxh5 b5 f4 e5 fxe5 b4 e6 Bd6 Nc3 Bc5 Nb1 Bf8 e4 d5 a3 b3 e5 Qg5 Ra2 bxa2 b3 Qd8 b4 Qd6 exd6 Bb7 Be2 Ba6 Bf1 Bc8 h4 a1N d4 g5 Kd2 f5 Kc3 g4 b5 f4 Kb4 f3 c4 f2 b6 g3 b7 g2 h6 Nd7 b8N Ne5 h7 Nh6 h5 Nb3 e7 Kf7 e8N Ke6 Qc2 Bd7 Ne2 g1N Nf6 Nhg4 h6 Nc5 Na6 Bg7 Bg5 Ned3+ Ka5 Raf8 Nb4 Nb2 Bh4 Nba4 Nd2 Rhg8 Nc1 Bh8 Ncd3 Kf5 Be2 f1N Qb1 Be8 Nc2 Bg6 Rh3 Rg7 Re3 Rgg8 Re8 Rg7 Ra8 Rgg8 Nfe4 Nf6 Nef2 Ne8 Ng4 Rg7 Nf3 Ke4 Qb5 Rgg8 Qd7 Bf6 h8Q Be5 Bd1 Ne2 h7 Nec3 Qf6 Na2 h8Q Rg7 Qh5 Bh7 Ngh2 Rg3 Be2 Bf5 Ncb4 Ke3 Nd2 Bh7 Qhf7 Be4 Qff5 Bh8 Q7f6 Rgg8 Bh5 Rg3 Ng4+ Ke2 Nc2 Rf3 Nb1 Kd1 Nh2 Rg8 Nf2+ Kc1 Nd2 Rfg3 Be2 Kb2 Nhg4 Rf8 Nd3+ Kc3
n2r1R2/1NPp1p1K/rN2PP2/1B1Bp3/2b1P1nQ/4B2n/1k1Nn3/2rQ1Nb1 w - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 h4 Bh6 hxg5 Bg7 b6 Bf8 d4 e5 b5 Qe7 d5 Nh6 Ra4 Ng8 Rb4 Qe6 dxe6 cxb4 f4 Ke7 Kf2 a5 Kf3 h5 c4 h4 Kg4 h3 b7 h2 c5 b3 c6 a4 f5 a3 g6 Kf6 g7 a2 c7 a1R b6 b2 Nf3 Na6 b8Q Bb4 b7 Ra2 Nbd2 Ne7 g8B b1N Bh7 Nd5 Kh5 Ne3 Kh6 Ra1 g4 Rg8 g5+ Ke7 f6+ Kd6 g6 Kd5 g7 Kc5 Be4 Ng4+ Kh7 Nc3 Bd5 Rd8 e4 Ne2 g8N Ba5 Ne7 Kb4 Rg1 h1N Nh2 Kc3 Qa7 Nc5 b8N Nhf2 Na6 Na4 Nc5 Bb7 Nc8 Nh3 Nb6 Ba6 Nb7 Bc4 Qb8 Ra6 Rg3+ Ne3 Rg8 Ng4 Rf8 Bb4 Qa7 Bc5 Qa8 Bg1 Qa7 Nd4 Bd3 Ne2 Nhf1 Bb3 Bb5 Bc4 Na8 Rb1 Qf2 Nb6 Qh4 Rba1 Ba3 Rc1 Bc5 Na4 Nb6 Kb2 Nc8 Nb6 Be3 Na8 Nb6 Rb8 Qh5 Rc8 Qh4 Rd8
4n2Q/1b2kpb1/B7/Nb2r1PP/1RR2rR1/rp2Q2n/pPR2Pr1/K1N1Q3 w - - 0 1 illegal: No proof kernel
Q3R1bQ/4rN2/1B2QPbr/p1p3b1/1Pq1Np2/nRp3KP/nNP5/2k2N2 w - - 0 1 illegal: No possible last move, all moves rejected
6RQ/1PN3n1/3R3q/1N4k1/2K1r1BN/2ppNP1P/2Ppp2R/Q1bn1brr w - - 0 1 illegal: Other
4r1BB/5Pb1/PQb2b2/3pR1p1/qKNPQR2/1Q2p1Pn/1np3B1/1Qr1k3 w - - 0 2 legal: proof: e4 b5 c4 f5 cxb5 h5 exf5 a5 b4 h4 bxa5 Bb7 Nc3 Ba6 Nce2 Bc8 g3 h3 Nf4 Nc6 Ng2 hxg2 Bb2 Nb8 Ba3 Nc6 Bc1 Nb8 a4 Kf7 h4 Kf6 f4 g5 b6 c5 a6 e5 a5 c4 b7 e4 a7 c3 a6 c2 h5 d6 h6 Qd7 h7 Qc6 Nf3 g1B Bg2 Bg7 Bb2+ Bd4 Rf1 Qb6 Ra5 Nh6 Ne5 Bf8 Qb1 Nf7 Nc4 Qb4 Re5 Nd7 b8Q Nd8 Qb6 Qa4 d3 Be7 Kd2 Ne6 Qb3 Rb8 a8B Ndc5 Bd5 Bb7 Qb6 Rhe8 h8Q+ Ng7 Rf2 Bc6 Bg8 d5 Qh7 Nge6 Qb3 Bd8 Qc7 Rb7 Qcb6 Rh7 Ba1 Rh1 Rf3 Rc1 Rf2 Kg7 f6+ Kh6 f7 Kh5 f8Q Kg4 f5 Bf6 Qe7 Nf4 Bc3 Bg7 f6 Nh3 f7 Bf6 Bb4 Ba1 Bc3 Bg7 Bb2 e3+ Kc3 Qa5+ Kd4 Na4 Bc3 Nb2 Rf6 Qa4 Kc5 Qa2 Kb4 Nf4 Bh3+ Kf3 Bg2+ Ke2 Qe6 Nh3 Rf4 Kd1 Qf5 Ke2 Qe4 Kd1 Bd4 Ke1 Re7 Bf8 Bh8 Bg7 Re6 Nd1 Re7 Baf6 d4 Nb2 Re5 Qa4+
8/1Pp1b1pQ/N3qPp1/1rQKQ3/2PQpRP1/5NkB/1qb1n2n/1RN2r2 w - - 0 2 illegal: Other
1NR3K1/p2R1RBn/QP2qQb1/Qpnp4/PQ2pP2/8/1rkP2B1/1b1qr3 w - - 1 2 illegal: No proof kernel
q2NBN2/4K3/Q1q2r1P/n4P1N/ppb1p2k/PP2p1br/1B3B1r/5RQB w - - 0 1 legal: proof: d4 f5 c4 c5 dxc5 d5 g4 h5 gxh5 d4 e4 Na6 b3 Qb6 Nd2 Qd6 Ba3 Nb4 Rb1 Nd5 exd5 Qd8 Rc1 Bd7 Rc3 Be6 Re3 Bc8 Re4 fxe4 Ke2 Kf7 h4 Kf6 f4 g5 c6 b5 f5 a5 c7 e5 c5 e3 Kd3 a4 Ke4 g4 d6 b4 Kd5 g3 h6 g2 d7 Qe8 d8N Qh5 c6 Bc5 h7 Bb6 Kd6 Qh6 h5 Qf4 Ngf3 g1R Bb2 Ba7 a3 Be6 c8B Bc4 c7 Qe4 Nh4 Kg5 Bg2 Bb8 Ng6 Ne7 Nf1 Nc6 Nf8 Ra6 Ng3 Na5+ Ke7 Qa8 Bd7 Rf6 c8Q d3 Be8 e4 Qa6 Re1 Rf1 d2 Bh1 Re2 Qe1 d1Q h6 Rg8 h8B Qc2 Qf2 Kh4 Qg1 Rh2 Nh5 Rg3 Be5 Rgh3 Bg3+ Kg4 Bf2+ Bg3 Bg7 Kh4 Bh8 Qd2 Bg7 Qdd5 Bh8 Qdc6 Bg7 Rg6 Bb2 Rf6
3n1r2/2n1N2r/Q1pPp2K/2kq3Q/1b2rNRp/2P1pq2/NB3PNP/1Q5R w - - 0 1 legal: proof: e4 d5 exd5 f5 a4 b5 axb5 Be6 g4 Nh6 d6 Kf7 d7 Ng8 Bd3 Nf6 Be4 fxe4 Ra3 Ng8 Ra1 Bf5 gxf5 Qe8 Ra6 Qc8 Ra1 Qd8 Ke2 g5 Ke3 h5 b4 a5 d4 c6 b6 g4 Kf4 h4 Kg5 a4 b7 a3 b5 a2 b6 e3 d5 g3 d6 g2 f6 Ke6 f7 Bg7 f8N+ Ke5 Ng6+ Ke4 Qh5 Kd5 Bb2 Ra7 Nh3 Nh6 Nhf4+ Kc5 Nc3 g1R+ Ng2 Qg8 d8N Na6 b8Q Nc7 b7 Qf8 Qa8 Qf3 b8Q Rf8 Rd1 a1Q Na2 Bc3 Rd4 Qad1 Rg4 Bb4 c3 Rb7 Qa6 Qdd5+ Ne5 Nf7+ Kg6 Ng5 Kh6 Nge6 Ng6 Ra7 N6f4 Ra1 Nf7 Nd8 Nh8 e6 Nhg6 Rd1 Ne7 Rd4 Qd3 Rc4 Qa8 Re4 Qb1 Nb5 Qc8 Rd7 Qa6 Nc7 Nf5 Rdf7 Ne7 Rh7+
1kB1q2Q/pn3bp1/1B3R1r/1q5p/b2r1N1P/PpQ3bR/1RK1Q1PP/4Q3 w - - 0 3 illegal: No possible last move, all moves rejected
1b2R2n/BQpr3k/8/1P1q2RB/p4q2/Qr3p1N/P1P1PRpK/n1qB1R2 w - - 0 1 illegal: Other
1nQbQ1Q1/k3N3/pp2P1RP/n1Bn3b/B5NQ/2p5/bPP1p2K/4rBr1 w - - 0 1 legal: proof: d4 h5 g4 e5 dxe5 b6 gxh5 Bc5 a4 Bb7 a5 Bc8 a6 Bf8 e4 f5 e6 Ba3 e5 Bf8 Ra4 Qg5 Re4 Qg2 Ra4 Qb7 Re4 fxe4 axb7 Ba3 Bd3 Be7 Bf1 Bf8 e7 g5 h4 c5 f4 d5 Kf2 Kd7 Kg3 Kc6 e8B+ Nd7 b8Q a6 f5 g4 Bh6 e3 f6 c4 f7 d4 Qe1 d3 Nc3 d2 Nf3 d1B Nh2 Be7 f8Q Nf6 Be2 Rg8 Nd5 c3 Rg1 Rg5 Kg2 g3 Bf1 Rg6 Kh3 g2 Qg8 Ra7 Qe2 Bd8 Bf8 Rg7 Bc5 Rg4 Qd6+ Kb7 Qde6 Nb8 Ba4 Rg7 Q6g4 Be6 Qf5 Bf7 Qc8+ Ka8 Qb5 Re7 Qbe8 Re6 Ne7 Ka7 h6 Be2 h7 Bc4 h8Q Nd5 h5 Ba2 h6 Bh5 Rh1 Rgg6 Qf6 g1N+ Kh4 Nf3+ Kh3 Nd2 Qh4 Nc4 Rg1 Na5 Rg4 Rg5 Kg3 Rf5 Rg6 Rg5+ Kh3 Rg1 Ng4 Rf6 Kh2 e2 e6 Rf3 Bh3 Rff1 Bg2 Rb1 Bf1 Re1
3RN3/Pp2rq2/1PNKnNp1/1p1Rb1PQ/1R1p3b/QP2bn2/4k3/Nb2B3 w - - 1 2 illegal: No possible last move, all moves rejected
Q2b3k/8/2rB2Br/pQp1NPPp/r2Rb1B1/2PKpN1N/PB1n4/n1r5 w - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 d5 exd5 f5 b4 Bg7 b5 Qd7 Na3 Qc6 Rb1 Qh6 Rb4 Qa6 bxa6 Bf8 Re4 fxe4 Ke2 Kf7 f4 Kg7 d4 e5 g4 h5 c3 c5 d6 b5 d5 e3 f5 e4 g6 b4 g5 b3 a7 b2 d7 b1R d8B Rb7 d6 Nh6 d7 Ng4 Bb2 Nf6 Bc7 Rh6 d8N Be6 Qd7+ Kh8 Nc2 Be7 Bh3 Rb4 Bg4 Ra4 Nh3 Nc6 Nd4 Nb4 Rd1 Rc8 a8Q Nc2 Nf3 Bd5 Bd6 Na1 Nc6 Bd8 Rd4 Rc7 Nce5 Rc6 Ke1 e2 Kd2 e3+ Kd3 e1R g7+ Kg8 Qdb7 Ne4 Qb5 Kh7 g8B+ Kh8 Bf7 Nd2 Be8 Rc1 Bg6 Be4+
KNrN2Q1/2RQ1Rpp/pr1P4/n4b1r/Bb2pk1r/PNP5/1nR4P/6R1 w - - 0 1 legal: proof: e4 d5 exd5 c5 b4 f6 bxc5 Kd7 Bb2 Ke8 f4 Bg4 f5 Qa5 Be5 fxe5 f6 Qb4 g3 Qf4 gxf4 Bd7 f5 Bc8 Kf2 Kd7 Ke3 b5 Ke4 e6 d4 b4 d6 a6 c6+ Kd8 d5 b3 c7+ Kd7 a3 b2 f7 Nh6 f6 Ng8 c3 Ra7 Nd2 b1R Bb5+ Nc6 Ngf3 Ne7 Ba4 Nf5 Ra2 Rb5 Rc2 Rab7 Nb3 Ne3 Rg1 Na5 Nfd4 Rb6 Nc6 Nec4 Qd3 Be7 f8Q Nb2 f7 Rc5 Qg8 Rc4+ Kf3 Rh4 f8R e4+ Ke3 Rh5 Kd4 e3 Kc5 e5 Rf7 e2 Qd1 e1R Qd4 Bb7 c8R Re4 Qd2 Reh4 Qd3 Rbb4 Qb5 e4 Kb6 Re5 Ka7 Reh5 Rb8 Bc8 Ka8 Rg5 Qd3 Re5 Rb5 Reh5 Rc5 Rb6 Rf6 Bf8 Nb8+ Kd8 d7 Ke7 d8N Bf5 Rf7+ Kd6 Qh3 Ke5 Rcc7 Bb4 d6 Kf4 Rfe7 Bg6 Qd7 Bf5 Qc4 Rf8 Qg8 Re8 Rf7 Rf8 Ndc6 Rc8 Nd8 Kf3 Nc6 Ke3 Nd8 Kf4
7Q/P1bn2P1/k1Ppp3/B1RNP3/n1b2r2/1p4pp/qBQK3B/NB2rN2 w - - 0 1 illegal: No proof kernel
2br2k1/ppNN4/RBP5/P2nR3/1p2n2P/K1p3P1/1R2RQpQ/2r1qNb1 w - - 0 1 illegal: Other
3nrk1K/1b6/b1Q3Qq/1pNp1p1P/1P1nNP2/1BBq3Q/1q1P1N1r/4bQR1 w - - 0 1 illegal: No proof kernel
1Q5B/2NQQpRq/1b4pk/pp4q1/PBPnb2n/1Pr1r1PB/8/R2r2KQ w - - 0 1 legal: proof: f4 h5 d4 e5 fxe5 c5 dxc5 h4 Nc3 Ke7 Ne4 Ke8 Ng3 Qe7 Nf5 Qd8 g3 h3 Ne3 Rh7 Ng2 hxg2 Qd3 Rh3 Qd1 Rh8 Kf2 a5 e4 b5 c4 d5 a4 g6 h4 d4 c6 d3 b3 d2 h5 Be6 h6 Ra7 c7 Qd3 c8Q+ Qd8 h7 Rb7 Ne2 Ne7 Kg1 Nbc6 Nc3 Rd7 Qb8 Bd5 e6 Nf5 e7 Nh4 e5 Be4 Nd5 Nd4 Ba3 Bg7 Qc1 d1R Bb4 Rd3 Rh2 Rc3 Qe1 Rf8 h8B Bh6 Be2 Bf4 Bg4 Bc1 Bh3 Ba3 Bd6 Bc5 Qb1 Ba7 Bb4 Bb6 Rh1 Rd6 Qc1 Re6 Nc7+ Kd7 Qf4 Bd3 Qe4 Nhf3+ Kf2 Re8 Bf5 Bb1 Rh7 Bd3 Ke3 g1Q+ Kf4 Qd1 Ke3 Qh1 Rg7 Qh7 Bh3 Nh4 Qh1 Bf5+ Kf2 Rf6 Na8 Ke6 Kg1 Qd5 Bg2 Bc2 Nc7+ Kf5 e6 Kg5 Bf1 Kh6 Bh3 Rc8 e8Q Qg5 Qec6 Re8 e7 Rff3 Qe6 Rfd3 Qee4 Rd1+ Qe1 Rg8 e8Q Bb1 Qd7 Re8 Kh2 Re7 Qe5 Bf5 Qc5 Ree3 Qce7 Rd2+ Kg1 Be4 Qbf8 Rdd3 Qb8 Rd1+
1Bb1B1RN/1pR2pRp/Q1pb3n/1Pr3Qr/q5q1/2PnR2P/1K2BP2/4r2k w - - 2 4 legal: proof: d4 a5 b4 e5 dxe5 Qg5 b5 Qd8 Nc3 Qh4 Nd5 Qe7 Nb4 Qd8 Bh6 axb4 Bxg7 Ra3 Qd6 Ra5 Qd1 Ra8 Kd2 Ke7 Kc1 Ke6 g4 d5 e4 d4 a4 b3 a5 d3 h3 d2+ Kb2 Nf6 a6 Qd5 g5 Rg8 g6 Bb4 a7 Ba5 Nf3 Nh5 Be2 Nd7 Nh4 Bb4 Qc1 d1Q Qg5 Nf4 Rg1 Qc4 Rc1 Nf6 Rg2 Rb8 a8Q Ng4 Qa6+ Bd6 Bh6 Qb4 g7 Qa4 Ng6 Ra8 Nh8 Nd3+ Kb1 Rd8 g8R b2 Rg3 Qg1 Re3 Rb8 c3 Qg2 Rg1 c6 Bg7 Nh6 Bf8 Qg4 Rg2 Ba3 Bd6 Bb4 Bc7 Rd5 Bd6 Ra8 Bb8 Rc5 Rgg3 Ba3 Ka2 b1R Rg1 Re1 Rg7 Kd7 e6+ Ke8 e7 Kd7 e8B+ Ke6 e5 Kd5 Reg3 Ke4 e6 Ra7 e7 Ra8 Rf3 Ra7 Rf6 Ra8 Rd6 Ra7 Rd7 Ra8 Bf1 Kf3 Rc7 Ra7 Qd2 Rh5 Qg5 Re5 Kb1 Bd6 Rg2 Rc5 Rg1 Nc1 Kb2 Ra8 Bc4 Ra7 Re1 Kg2 Re3 Kh1 Be2 Ra8 Bd7 Ra7 e8R Ra8 Reg8 Nd3+ Kb1 Qh4 Be8 Qag4 Qb6 Ra1+ Kc2 Re1 Qa6 Nc1 Kb2 Qa4 Rg3 Qhg4 Re3 Nd3+
bQ2B1N1/1p2q3/QQ1pr3/3RPkp1/N2P3Q/pP1rb3/1n1n1bP1/R1q2N1K w - - 0 1 illegal: Other
1Q1BN3/1bR2p1r/2K2npb/5Prp/1p4P1/1Qpn2P1/3q1N1P/1qQ1QBkN w - - 0 1 illegal: No proof kernel
bB1B4/bB1R2bR/P2bq2r/2N1rp2/1RP5/2P5/1qP1Nk1n/BK1B1n2 w - - 0 1 illegal: No proof kernel
2N1RNr1/2K3PN/p2B4/1B2r1bk/q1P3NN/PP4bn/4rRn1/Rq1r4 w - - 0 1 legal: proof: c4 b5 cxb5 f5 e4 c5 exf5 g5 f6 c4 d3 Na6 dxc4 Nb8 g4 Qb6 f4 Bh6 f5 Kf8 Qd6 Ke8 Qd2 Bb7 Qf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Qd8 Nh3 Bg7 Ng1 Bf8 Kd2 Kf7 Kc3 d5 Kd4 h5 Kc5 a6 b6 h4 b3 h3 a3 f3 b7 f2 Bd3 f1Q Be3 d4 Bc1 h2 Nh3 Rh5 Nf2 Bh6 Be4 e5 Bc6 e4 Nd2 d3 Nf3 d2 Nh4 d1R Bb5 Qd7 Kb6 Ne7 Bf4 e3 Bd6 Nbc6 b8R e2 Re8 e1B Rg1 h1R Rg2 Nd8 Rh2 Qe6 Kc7 Ng6 Rg2 Nf4 Rh2 Nh3 Rg2 Bf8 g6+ Kg8 g5 Rh2 f7+ Kg7 Ng4 Bg3 Rd2 Be7 f8N Re2 Nh7 Qe1 Rc2 Qb4 Rca2 Qe4 Rc2 Qa4 Rca2 Bf8 Rb2 Qb1 f6+ Kg8 g7 Kf7 g8N Bh6 Ne7 Ne6+ Kc6 Rd8 Nc8 Nef4 Kc7 Ng2 Rd2 Re4 Rf2 Re2 Nf3 Kg6 f7 Rh4 f8N+ Kh5 g6 Bg5 g7 Re5 Nh6 Rhe4 Ng4 Re2 Nh4 Bf6 Re7 Re8 Nfg6 Rf8 Re8 Rg8 Ngf8 Bg5
k7/2PQNb2/1bN1Ppq1/3N1q2/5nbK/r1R4P/NN2Pb1R/3BqnN1 w - - 0 1 legal: proof: f4 b5 g4 e5 fxe5 a5 a4 c5 axb5 c4 g5 h6 g6 f6 d3 Ke7 Bg5 hxg5 dxc4 Ra6 c5 Re6 Na3 Ke8 Nb1 Re7 Kd2 Rf7 gxf7+ Ke7 Ke1 Rh7 Bg2 Rh5 Bf1 Rh8 Kf2 d5 Kg3 Kd7 c4 Kc7 b4 Kb7 h3 d4 c6+ Ka8 c7 a4 c5 d3 c6 d2 b6 g4 b5 g5 Qc2 d1B Qd2 a3 Qd7 a2 Na3 Bc5 f8N Bb3 Bg2 Nh6 Ng6 Na6 Be4 Nb4 Ne7 Nd3 Rh2 Bf7 Nd5 Nf4 Rc1 a1Q Nc4 Qf8 Rc3 Qe1+ Rf2 Qe8 Bc2 Qe6 Bd1 Qf5 Nb2 Rd8 Qe7 Bce6 c8N Rd7 Qd8 Ra7 c7 Ra3 Qd7 Bd4 Nce7 Be3 Nb4 Bc5 Na2 Bd4 Nd5 Be3 Kh2 g3+ Kh1 g4 Rh2 Bf2 b7+ Ka7 b8N Ka8 Nc6 Bb6 Rf2 g2+ Kh2 Ng6 Kg3 Nf4 Nf3 g1Q+ Kh4 g3 Rh2 Qg2 Ng1 Qge4 Nce7 g2+ Rg3 Bf2 b6 Qg6 Nc8 Bg4 e6 Qc2 Nce7 Qcf5 Nf3 g1B b7+ Ka7 b8N Ka8 Nbc6 Bb6 Nd3 Bgf2 Ng1 Ng8 Nc8 Ne7 Nb2 Nh5 Ndc3 Nd5 N8e7 Ndf4 Ncd5 Bfc5 Rf2 Be3 Rgf3 Ng3 Rh2 Bf2 Rc3 Nf1+
n4b1n/1KPb3n/P3q1B1/Np1RRbB1/B1Pb4/1B2BP2/2Q1B2k/2q1r3 w - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 f5 exf5 g5 d4 g4 dxc5 g3 f3 Bh6 Na3 Bg7 Nb1 Bf8 h4 b5 h5 Bh6 Nc3 Ba6 Ne4 Bg7 Nf2 gxf2+ Kd2 Bf8 g4 Bc8 g5 Ra7 Rh4 Ra6 Rh1 Rg6 hxg6 Qc7 Rh6 Qb6 Rh1 Qd8 Ke3 e5 Ke4 Ke7 Kd5 h5 a4 h4 a6 e4 c3 e3 a5 e2 c6 e1B c7 h3 g7 h2 a7 Nc6 a8B Nf6+ Kc5 d5 Kb6 Kd6 g8B Ke5 g6 d4 a6 d3 g7 d2 Bb3 Kf4 g8B Kg3 Qc2 d1N Be3 Qe7 Ba4 Nh7 f6 Nb2 f7 Ne5 Be2 f1B Rd1 Ng6 Be4 Bfh3 Rd5 Bcf5 Kb7 Qe6 Re5 Nc4 B4d3 Bc5 f8B Bd4 Be7 Nb6 B7g5 Na8 Bf7 Re8 c4 Nh4 Bg6 Bb4 Bd1 Bf8 Ne2+ Kg2 Nc1+ Kg3 Rf1 h1Q B3e2 Kh2 Nb3 Qg1 Na5 Bhg4 Bf7 Ng6 Bb3 Nh8 Bg6 Qh1 Rg1 Bh3 Rg4 Qe1 Rd5 Qd2 Re4 Qc1 Ree5 Qf6 Rc5 Bd7 Ba4 Bhf5 Rcd5 Re6 Qc3 Re7 Bdb3 Qe6 Qc2 Rg7 Bh6 Qb2 Be8 Rg1 Bg6 Re1 Bhg5 Qc1
Bq1KnNRB/3Rp1N1/3PPn2/R4pn1/R3brPP/1R1q1k2/4q1N1/7b w - - 0 1 legal: proof: g4 b5 c4 h5 a4 d5 axb5 h4 Qb3 g5 f4 d4 Qg3 hxg3 fxg5 Rh7 Nf3 Rh5 Ng1 Rh8 Nf3 a5 Bh3 c5 Nc3 Bg7 Ra3 Be5 Nh4 Bf4 Bf1 Ra7 Nf3 Rd7 Ng1 Rd5 cxd5 c4 Nb1 c3 Ra4 c2 Ra1 Bd6 Bg2 Bb4 Bf1 Bc3 dxc3 Qd7 Be3 Qc7 Bc1 Qd8 Kd2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 b4 f5 h4 a4 d6 g2 g6 a3 g7 d3 b6 d2 b7 d1B c4 a2 b5 Rh5 b6 Be6 Na3 Qf8 Bb2 c1Q Nc2 Qd2 Ne1 Rh6 Nh3 g1N Ng5+ Kf4 e4 Nc6 b8R Qg2 e5 Na7 b7 Kg3 Kb6 Nc8+ Kc7 Qc2 c5 Be2 c6 Qe8 Bg2 Nf6 g8R Bd5 Ne6 Qd3 Ng7 Nh3 e6 Na7 Be4 Rh8 Ng2 Ng5 Ra8 Qf8 b8N Bf3 Rhb1 Qe8 Nd7 Nb5+ Kb6 Nc7 Ra5 Qc8 Nf8 Nce8 c7 Qa8 c8R Qb8+ Kc5 Bb7 Kb6 Qe2 Bd5 Be4 Rc7 Kf3 Rd7 Qd3 Bd4 Qe2 Rb3+ Qd3 Rc1 a1Q Rc4 Qe1 Rca4 Qe2 Kc5 Ba6 Ba8 Bab7 Kb6 Kg3 Ne3 Bh1 Bb2 Kf3 Ng2 Be4+ Rb7 Qc8 Ng6 Nc7 Nh5 Qb8 Rg7 Rc8 Nf8 Nce8 Rg8 Nfh7 Bh8 Bd5 Ng7 Rc7 Nf4 Rc4 Ng2 Qc8 Rd7 Rf4 Bc6 Qd8+ Kb7 Qb6+ Kc8 Be4 Ba8 Qa7 Kd8 Nhf6 Rc5 Qb7 Rca5 Qb8+
1k1N4/NpR5/1p3RPp/qbNB1Q1P/1K1N2nP/1Prq1q1n/8/2Nb2N1 w - - 0 1 legal: proof: d4 e5 dxe5 g5 f4 d5 c4 Bf5 cxd5 Bg4 Be3 Bc8 Bb6 axb6 h4 Bc5 f5 Be7 h5 g4 g3 Bh4 gxh4 Ra3 Qd2 Rc3 Qc1 Rc6 Qd1 Rg6 fxg6 Bf5 Kd2 Be6 Ke1 Bc8 Kd2 Kd7 Kc3 f5 a4 c5 e4 Kc7 a5 c4 d6+ Kc6 d7 Kc7 a6 h6 e6 g3 b3 g2 a7 f4 a8N+ Kc6 e7 f3 e8N f2 e5 Qf6 Qc2 Ne7 d8N+ Kd7 Nac7 Qf3+ Kb4 c3 Bc4 f1B Bd5 Bb5 Nd6 Re8 Qd3 c2 Nc3 c1Q Na2 Qcd1 Nf5 Qdf1 Qc2 Q1d3 Rc1 Rg8 Nd4 Nbc6+ Ka3 Rg7 e6+ Kd6 Rh3 Ne5 Na6 Ng4 Nc5 Kc7 Kb4 Kb8 Rf1 Rf7 Nc1 Rf4 Qb1 Re4 Rg3 Re2 Rh3 Rc2 Rh1 Rc3 Qc2 Nf5 e7 Ng3 e8N Ne2 Nd6 Nf4 Qf2 Bcd7 Nc8 Nh3 Na7 Bf5 Qd2 Be6 Qg5 Bc8 Qf5 Be6 Nge2 g1Q Rf2 Qe1 Ng1 Qed2 Rhh2 Qa2 Rc2 Qa1 Rhe2 Bed7 Re6 Bc8 Rf6 Qa6 Na4 Qa5+ Ka3 Qfe2 Nf7 Ngf2 Qe5+ Rc7 Nd8 Bg4 Qf5 Qf1 Rc3 Bd1 Rc2 Ng4 Rc3 Qa6 Kb4 Qff3 Rc4 Rd7 Rcc6 Rd6 Rc7 Rc6 Nb2 Qa2 Na4 Rc3 Nc5 Qa5#
2rn4/1rPNRprP/B1k1p1r1/2N1b1RP/RBn5/K2rR3/1R2pP2/N7 w - - 0 1 illegal: No possible last move
qRN5/1p1n2k1/P2P4/pQ2R1q1/1PN1PbR1/2RKRr2/bpBpRq2/8 w - - 0 1 illegal: No proof kernel
B4qK1/R5P1/1BPp1Br1/bPBPnbq1/6Qr/N2nBq2/1kn3R1/2b2B2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 Na6 b4 Bg7 Nc3 Nb8 Na2 Na6 axb5 Bf8 b6 Nb8 b5 Nh6 Nb4 cxb4 Ra5 Ng8 Ra6 Bh6 Ra1 Bf8 Ke2 Kf7 Kd3 e5 Kc4 h5 Kd5 a5 f4 h4 g4 a4 d4 h3 c4 e4 c5 h2 g6+ Kf6 b7 b3 g7 a3 Be3 a2 Ne2 b2 Rg1 b1Q Rg2 h1Q Nc3 Qc2 Nb1 Nh6 g8B Qd2 Na3 Nc6 b8B Ne5 Ba7 Nhf7 Bb6 Ra6 Qf3 Rh4 g5+ Kg7 g6 Kf6 g7 Nd3 Qg4 Nfe5 Bf7 Qe7 Be6 Qh3 Bg8 Qf3 Bh7 Kf7 f6 Qc1 f5 Qd2 Rc1 a1N Rc4 Nc2 Ra4 Ra7 Ra5 Rc7 Ra7 Rc6 Bf2 Qdf4 Be3 Qg5 Bg6+ Kg8 Bh5 Kh7 f7 Rg6 f6 Kh6 Qh3 Kh7 Bg4 Kh6 Bf5 Kh7 Qg4 Kh6 Bc1 e3+ Be4 e2 Be3 e1B Bd8 Qe8 Bb6 Be7 f8B Ba5 f7 Bd8 Bd6 Qe7 f8B Bd2 Rf2 Bc1 Rg2 Kh7 Bb8 Kg8 Bd6 Kf7 Bdc7 Kf6 Bb8 Qf7+ Kd6 Qe8 Ba8 Qf7 c6 Qe8 Bc5 Ba5 d5 Qd8 Bc7 Qe8 B7b6 Qe7+ Kc7 d6+ Qd7 Qe6 Kd8 Kf5+ Be7 Ke4 Ke8 Qef6 Qh3 Bf5 Bed8 Qe6+ Kf8 Qee7+ Kg8 Nf4 Re2 Kd3 Qg2 Kc3 Qg4 Nfd3 Rh2 Kb2 Rg2 Qb7 Bf6 Qc7 Bf2 Qe7 Bfe3 Qf8+
rr1RnR2/2kn1p2/1b1NK3/3Pn3/1R1PBrR1/2Pb3r/3rRPq1/1R2NQ2 w - - 0 1 illegal: Other
b2QN1r1/1r1R3K/2P2qpB/br1NN1r1/1PR1r2N/2nnq1P1/1P6/3k2NN w - - 0 1 legal: proof: d4 b5 e4 c5 dxc5 h5 a3 f5 exf5 h4 g3 b4 axb4 h3 Bg2 hxg2 Kd2 Kf7 Kd3 Kf6 Ke4 a5 c4 d5+ Kf4 a4 h4 d4 c6 a3 c5 d3 h5 d2 c7 a2 c6 Ra5 h6 Bb7 c8N Na6 h7 Ba8 Rh4 Nc5 Nc3 Rb5 Nb6 e5+ Kg4 e4 Kh5 Ke5 Kg6 Kd4 f4 Kd3 f6 e3 f5 e2 f7 e1R f6 Re4 Nbd5 Bd6 f8N Bc7 f7 Nf6 Nd7 Rg8 h8N Ba5 f8N Qe7 Ne6 Qd6 Rb1 a1R Nec7 Ra3 Ne8 Ra2 Qe2+ Kc2 Ne5 Nd3 Nd1 Qe7 Qe1 Rb7 Nf2 d1R Bh6 Qd6 Nf4 Nd5+ Kh7 Nc3 Nhg6 Qf6 Nh1 Rc1 Qe3 Kd1 Nd5 Ra1 Rf4 Ra3 Nh4 g6+ Ng7 Ra1 Qb6 Ra4 Qd8 Ra1 Nh3 g1Q Rg4 Qe3 Ng1 Ra4 Ra1 Rb5 Ra2 Rc2 Ne8 Rf2 Ra3 Rf5 Rb3 Rg5 Ra3 Nb1 Rc3 Ra2 Rc4 Nc3 Rd4 Bc7 Rf4 Ra7 Rc4 Rab7 Rf2 Qe7+ Rf7 Qf6 Rd7 Ba5
nRr4B/3K3r/b1R5/BNPPpQ1q/4P3/bnB1k3/nqP1B2B/1n2Bb2 w - - 0 1 illegal: No proof kernel
2qK4/1R2P2B/2B2n1P/6nB/1BRpBPb1/2bPpnN1/krR2qr1/2qN4 w - - 0 1 illegal: No proof kernel
8/1p1B1B2/bBKQq1b1/r1nn1P1p/1RB2B2/1N2Bq1k/2q1PP1P/b1r1R3 w - - 0 1 illegal: Other
1r2RRbr/q1R1Bp2/1k1b4/3RPb1B/2p2P2/2KN1q1P/P2rR3/1nnB1N2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 Qd7 b4 Qd6 bxa5 Qd8 d4 e5 d6 h5 gxh5 Nf6 d5 Ng8 Qd4 exd4 Kd2 Kd7 f4 c5 e4 b5 h6 g5 h7 d3 h3 g4 a6 g3 e5 c4 a7 g2 Ba3 b4 Nf3 g1Q Rh2 b3 Bb4 b2 Kc3 d2 Ne1 d1R Be2 Nh6 Nd3 Na6 Bh5 Ng4 Re2 Rb8 a8B Qa7 Nd2 b1B Nf1 Ne3 Bc5 Bc2 Rb1 Rd2 Rb7+ Qc7 Ba3 Nc5 Bb4 Kd8 d7 Qc6 Rc7 Nb3 Bc5 Bd6 Ba3 Rg8 h8R Nc1 Bc5 Re8 Rf8 Bb1 Bb7 Nc2 Bb4 Na3 Ba8 Qca4 Bc6 Q4a6 Ba4 Q6b7 Bd1 Qc6 Nb2 Bh7 Nd3 Bg8 Bc5 Qcb6 Bb4 Qf2 Bc5 Ke7 d8R+ Bd7 Bb4 Qf3 Bc5 Rb6 Ra8 Rbb8 Bb4 Kd8 Bc5 Be7 d6 Bf5 d7 Bd6 Bb4 Ke7 d8R+ Ke6 Bc5 Kd5 Re7 Kc6 Rc7+ Kb5 Bb4 Kb6 Rdd7 Be7 Rd4 Bd6 Rd5 Re6 Re8 Rh6 Rf8 Rb7 Rab8 Rh8 Rbe8 Rb8 Rcc8 Bc7 Be7 Bd6 Rc7 Nb1+
2K1r2r/1Bp1QB2/1PR1bB2/2Pk2pN/1bbnN2B/bn2P2r/B5P1/5qB1 w - - 1 2 illegal: No possible last move
1KB3b1/1p2B3/1PkrbN1B/3R2bq/N2Pr2R/1b1P3n/2BPp1R1/1q1n3B w - - 0 1 illegal: No proof kernel
1q2R2B/K1PBNb2/p1P2R1b/2N5/B2b2Np/2n2rb1/P2rNnkP/2N2q2 w - - 1 2 legal: proof: d4 b5 g4 c5 b4 f5 gxf5 e5 dxe5 Kf7 bxc5 b4 c4 b3 Bd2 b2 Na3 Ke8 Rc1 Qc7 Rc3 Qd8 Qa1 bxa1B e4 Kf7 Ke2 g5 Ke3 h5 Kd4 d5 f4 a6 f6 Kg6 c6 g4 c5 g3 e6 g2 e7 h4 e8N Kh5 f7 Kg4 c7 Bd6 f8N Bd7 e5 Be7 f5 Bc6 f6 Bd6 e6 Rh5 f7 Qg5 e7 Nh6 Bb5 Bg3 Ne6 Qg8 f8N Nd7 Nb1 Nb6 Ne2 Kh3 Ng6 Ng4 Rf1 Rf5 Ba4 Rd8 Nc1 Nf2 Nf6 g1B e8B Rf3 Ne7 Kg2 Ng4 Rd6 Bd7 Qb8 Bf4 Bb5 c6 Bc4 Kc5 d4 Rb3 d3 Nc3 d2 Be5 d1Q N3e2 Rd2 Re3 Nd5 Bh8 Bg7 Re4 Nc3 Re3 Qa8 Kb6 Bh6 Nc5 Bf7 Re6 Qf8 Ka7 Qb3 Rf6 Qb5 Re1 Qd8 Nd4 Qf1 Re4 Nh3 Nde2 Bd4 Ng8 Qc8 Re8 Nf2 Ne7 Qb8+
qB1R3r/n1P1B1pN/1BQ1P1b1/b1B3r1/P3K1B1/p3np1n/P2Bb2N/3k4 w - - 0 1 illegal: No proof kernel
B1k5/2qb1P2/2p1NB1n/2n1P3/2P1R2p/1B1KR2b/rPr1p3/R1NR1Rbr w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bf8 hxg5 f5 e4 Kf7 e6+ Ke7 e5 Ke8 Qd3 Ba6 Qe2 Bc8 Qe4 fxe4 Kd2 a5 g4 d5 f4 h5 f5 a4 e7 Kd7 e8R d4 b6 h4 b7 e3+ Kd3 a3 f6 e2 g6 a2 g5 Be7 g7 Ra5 g6 Bb4 Bg5 Na6 b8R Be1 Bg2 Bf2 Rf8 Be1 Rb4 Qe8 Ba8 Qf7 Nf3 Nh6 g8R Bf2 g7 Bg1 Nbd2 Rh7 Rd1 a1R Nb3 R5a2 Nc1 Qe7 Rh3 Qc5 Rh8 Qa7 g8B Nc5+ Kd2 d3 Re4 Re7 Nd4 Rh7 Kc3 d2 Bb3 Qb6 Ne6 Qd6 Re1 d1B Rhe3 Rg7 Rf1 Rg6 f7 Qb6 Nd8 Rc6 Bf6 Rb1 Kd4 Qb7 c3 Bc2 Rhg8 Bd3 Rg2 Bb5 Ne6 Rb6 Re1 Bh2 c4 Ra5 Nd3 Rd6+ Kc3 Ra2 Re8 Rd1 Ng5 Rd2 Ra1 Rc2+ Kb4 Rd5 Nc1 Rd1 Rf2 Rh1 Rf1 Bg1 Rf8 c6 Rh8 Qc7 Re8 Bba6 Re6 Qd8 Rd6+ Kc7 Rd5 Bh3 Rdd1 Bac8 Ne6+ Kb8 Nf4 Qc7 Ne6 Rd2 Kc3 Bd7 Ref3 Kc8 Rfe3 Rc2+ Kd4 Nb7 Kd3 Nc5+
2NB2Kb/qB2B1RQ/2B2nBp/P5r1/2p4r/1p1Nn3/1Pb1PP1r/3kB1q1 w - - 0 1 illegal: No proof kernel
N1Bq3r/1NB1b3/1P3NPn/1bN2R2/4p2k/np1qq3/1PrNNpP1/4K1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
RR2B2n/8/3qbBpp/K4Rq1/NPp1Rb1Q/n4k1P/r1PR1r1P/1q4R1 w - - 0 2 legal: proof: d4 e5 e4 f5 a4 b5 axb5 Qh4 Nc3 Qh3 gxh3 Ba3 dxe5 Kf8 e6 Ke8 e5 Bf8 Ne4 fxe4 Kd2 Ke7 Kc3 a5 f4 c5 b4 d5 f5 h6 b6 c4 b7 a4 Qd4 a3 Bg2 e3 Rb1 e2 Bd2 e1Q Qg4 a2 Rd1 d4+ Kb2 d3 Bc3 d2 Bc6 Qe3 Qh4+ Qg5 Be8 Nc6 b8R Nd4 Ne2 Nb5 Rhg1 Na3 Bd4 Bd7 Nc3 Ra7 Na4 Ra8 Rde1 d1Q Re2 Rh7 Bc3 Qd6 Reg2 g6 Rf2 Nf6 Rd2 Rf7 Bd4 Nh7 Bc3 Bc8 f6+ Kd8 e7+ Kc7 e6 Bd7 Rd4 Kc6 Rd2 Ra6 Bd4 Kd5 Ra8 Bg7 Rb8 Rf8 f7 Be5 Ra8 Bf4 Bf6+ Ke4 Rb8 Rg8 f8R Kf3 Ra8 Qf5 Rf7 Ng5 Rf8 Nf7 Rb8 Nb1 Ra8 Nh8 Rb8 Nc3 Ka3 Qg5 Bg7 Qh5 Bf7 Qdc5 e8R Bg5 Ra8 Qd6 e7 Ra7 Reb8 Ke3 Be5 Bf5 e8R Bc8 Re6 Bd7 Be8 Nb1+ Kb2 Ra6 Nb6 a1Q+ Kc1 Ra2 Rf4 Rg7 Ref6 Re7 R6f5 Bc8 Rfd4 Bf4 Bg7 Kf3 Bf6 Re2 Re4 Rf2 Rd4 Ra7 Re4 Qa6 Kb2 Qg5 Ra5 Be6 Ka2 Nc3+ Ka3 Nb1+ Ka4 Qd8 Rde2 Qd1 Rd2 Qc1 Nd7 Qd6 Nb6 Rb7 Rf5 Ra7+ Kb5 Ra2 Na4 Na3+ Ka5 Qb1
2qbN3/1pbB1nBk/1PB1p2b/RR4P1/2R5/K1P2P2/2r1BNp1/1bn1B2r w - - 0 1 illegal: No proof kernel
nK1b1bN1/1p6/p1BQp1P1/r7/2R1Nr2/P3Prqk/b1P2qN1/NRN4N w - - 0 1 legal: proof: d4 g5 b4 c5 bxc5 g4 c6 g3 fxg3 Na6 g4 Nb4 g5 Na6 g4 h6 g6 Nf6 g5 Nh7 g7 Nc5 dxc5 Nf6 g6 Ng8 Bg5 hxg5 Kf2 f5 Kg3 d5 h4 e6 a3 Ke7 c7 Kf6 h5 g4 Kf4 d4 h6 a6 e3 g3 h7 g2 c6 d3 Nh3 g1B Bg2 d2 Nf2 Rb8 Rh4 Ne7 Nh1 Bd7 c8N Bf2 c7 Bc6 Nb6 Bd5 c8N Qc7+ Nd6 Ba2 Bc6 Nc8 Rg4 Rg8 h8N Bh4 Nf7 Rh8 Ne5 Rh5 Nd3 Rg5 Qe1 d1Q Nd2 Qe2 Nb3 Qd2 Ndc1 Qf2+ Bf3 Ra8 Qd2 Rh5 Rb1 Qb8 Nc4 Nb6 Nb2 Qc7 Nbd3 Re8 Nd4 Na8 Ne1 Rc8 Ng2 Qb8 Qe1 Rc4 Qg1 Ra4 Qh2 Ra5 Ndb3 Qc7 Rg3 Rg5 Rh3 Rg3 g8N+ Kg7 Nd2 Qe2 Qg1 Bd8 Bc6 Qb8 Ndb3 Qd2 Nh6 Kf6 Qd1 Qe1 Na1 Rg4+ Kf3 Kg5 Rh4 f4 Ke4 Qe2 Ng8 f3+ Nf4 Rg3 Ng2 f2 Kd4 f1R Rf4 Bd5 Ke5 Ba2+ Qd5 Rg4 Rc4 Rf3 Qc5 Qf2 Qd5 Qa7 Ne4+ Kh5 Qc5 Rh4 Qd5 Kg4 Qc5 Kh3 Qd5 Bh6 Kd6 Bf8+ Kd7 Qc5 Qd6 Qg5 Kc8 Rhf4 Kb8 Qgg3
1R3N1n/3Q4/nq1pB2K/1NpP4/1kP1pq2/4NPN1/nr2PNr1/1NRn1b2 w - - 1 3 legal: proof: g4 a5 h4 g5 a4 f5 gxf5 b5 b4 g4 Ba3 Ra7 axb5 Bh6 b6 Bg5 hxg5 Ra6 b5 Ra8 Bb4 axb4 c4 h5 d4 c5 Kd2 e5 Ke3 Ke7 f6+ Kd6 b7 h4 b6 e4 Kf4 b3 f7 h3 f8N h2 f3 b2 g6 g3 g7 g2 Nh3 g1Q Nf2 Ne7 g8N Ra2 Bh3 Na6 Be6 Kc6 Nf6 Rg8 Nh5 Rg2 Ng3 Ng6+ Kf5 Nh8 b8N+ Kb7 Nc6 d6 d5 Qe1 Qa4 Qd2 Rc1 h1N Ne7 Qh6 Kg4 Qf4+ Kh5 Qc7 Nef5 Qd8 Nc3 b1N Ne3 Rb2 Ra3 Qc7 Rb3 Qb8 Qd7+ Qc7 Nb5 Nc3 Na3 Na2 Nb1 Rd2 Nd3 Nf2 Rb4 Nd1 Nf2 Rb2 Rb3 Kb8 b7 Ka7 Rb4 Qb6 b8N+ Nc7 Nc6+ Ka6 Na7 Ka5 Nb5 Na6 N5a3 Qd8 Rb8 Qb6 Nb5 Kb4 Qe8 Qf5+ Kh6 Qe5 Bg8 Bh3 Be6 Qf5 Qd7 Qf4+ Kh7 Rg1 Kg7 Bf1 Kh7 Rg2 Kg7 Qf5 Kh6 Qf4+
7B/4pN1b/1bNP1nk1/3B1p2/2N1Prp1/R1q1R1Pp/P1rnRR2/3RK1n1 w - - 0 2 illegal: No proof kernel
8/R3pnqq/1Kp1N1bk/2PN3p/r1N1QP1P/3p1N2/1bR1p2P/n3BNN1 w - - 0 1 illegal: No proof kernel
R1q5/pK1Pp2R/P2r1R2/1Bp2bR1/2q1P3/pP2pnN1/2kn2B1/b1BR3N w - - 0 1 illegal: Other
1n6/nb2rB2/Npq1BBnp/3ppBr1/2PB4/2QpPK2/1P1PN3/3kbR1B w - - 0 1 illegal: Other
4nR1N/1q6/8/3r1nRR/bB3RB1/P1PPnB1N/2rNP3/k2qqqK1 w - - 0 1 legal: proof: f4 a5 b4 h5 bxa5 e5 fxe5 d5 g4 Ra6 gxh5 Ra8 Bg2 c5 Bh3 d4 Bf1 d3 cxd3 c4 Nf3 c3 Ng1 c2 Bb2 Bb4 Bc1 Bc3 dxc3 Bf5 Kd2 Bg4 Ke1 Bc8 Kf2 Kd7 h4 Kc6 h6 Kb5 h7 Ka4 e6 f5 e7 g5 e8R b5 h5 g4 h6 b4 a6 b3 a7 g3+ Kg2 f4 Na3 b2 Nf3 b1Q Re5 Nd7 Nh2 f3+ Kg1 Qh4 Bg5 Ne7 Ng4 Nf5 Nf2 Nf6 Nc4 Qb7 Nh3 Rd8 h8R Rd5 h7 Bd7 Rf8 Ne8 Nd2 Ka3 h8N Kb2 Be7 c1Q Bb4 Ba4 a3 Rb8 Qe1 Qd1 Rc1 Ka2 a8B Kb2 Re4 Ka2 Rf4 Kb2 Bg2 f2+ Kf1 Ka2 Bf3 Kb2 Kg2 f1N Bg4 N1e3+ Kg1 g2 Qf1 Qhe1 Rc2+ Ka1 Rb2 Qa7 Bc6 Qb7 Rb3 Ra5 Bcf3 Re5 Bd6 Rd5 Rb5 Qf7 Ra5 Rb2 Bb4 Rc2 Rc5 Qb7 Rb5 Rd8 Re5 Rd5 Rh2 Nh4 Rg5 Nhf5 Nf2 Nf6 Rhh5 Ne8 Nh3 gxf1Q+
2q1rnn1/KN1BP3/b2rp1n1/N7/R1RnNB2/P1RPP1qb/7R/k2B4 w - - 0 1 legal: proof: b4 a5 g4 b5 c4 d5 cxd5 h5 gxh5 e6 f4 Be7 f5 Kd7 f6 Ra7 bxa5 Ra8 fxe7 b4 a3 b3 Qc2 Nf6 Qb2 Ng8 Qa2 bxa2 Kf2 Kd6 Ke3 Ke5 h4 c5 d6 f5 d7 g5 h6 g4 d3 g3 a6 c4 h7 g2 a7 c3 h5 c2 h6 Bb7 Nc3 Bc6 Nf3+ Kf6 Kd4 f4 Kc5 g1Q+ Nd4 Ke5 Ne4 f3 Rh4 f2 Nb3 Qg3 Na5 Qc8 Kb6 Kd4 d8N Bb7 Bf4 Ba6 Rc1 a1N Ndb7 Nb3 Bh3 f1B Bg4 Bh3 Bh5 Qe1 Be8 Qg3 Bd7 Nc5 Rg4 Nc6 Rh4 Rb8 a8B Ne5 Ka7 Ng6 Rg4 Nf6 Rh4 Re8 h8R Ng8 h7 Rd8 Bb5 Rd6 Bd7 Qc6 Rg4 Re8 Rh4 Qc8 Rg4 Nf6 Rf8 Ng8 h8R Qg1 Rhh4 Qg3 Rh1 c1N Rh2 N1b3 Rf5 Na4 Rc5 Nb6 Rc3 Nc4 Rg5 Nf8 Rc5 Ne5 R5c4+ Kd5 Ra4 Neg6 Rh1 Nd4 Rhc1 Bf5 Rh2 Bg4 Rcc4 Bh3 R1c3 Bg2 e3 Nf3 Nec5 Bh3 Rab4 Nd4 Bh6 Ke5 Bf4+ Kf5 Nd8 Kg4 Ne4 Kf3 Nf2+ Ke2 Bf3+ Kd2 Ndb7 Nc2 Be2 Kc1 Ra4 Kb1 Ne4 Nd4 Bd1 Ka1
3Nqn1R/nBR5/P1B5/R1p2rn1/1B1N1P2/bq1qbNB1/2bP3P/k3K3 w - - 0 1 legal: proof: g4 b5 e4 f5 f4 d5 c4 a5 cxd5 h5 b4 Ba6 bxa5 Bc8 e5 Ra7 gxf5 Ra6 Qg4 Rf6 exf6 hxg4 a4 Kd7 f7 Kd6 f6 Kc5 a6 Kb4 a5 Kb3 d6 e5 a7 g5 a8B e4 a6 e3 d7 b4 Bfg2 e2 Bh3 g3 Ra4 g2 Ra1 g4 Ba3 g3 Bg4 Nc6 Bc1 Nge7 Ra5 Ng6 Bf3 Rh5 Nh3 g1B Ra1 g2 Bb7 Rf5 Bb2 Na7 Ng5 Be3 Na3 g1N Bfc6 Nh3 Nf3 Ng5 Nb5 Bd6 Rf1 Nf8 Bd4 Be7 Bc5 Kb2 Nbd4 b3 Ra5 Qe8 Bb6 Ba3 d8N Ka1 Bc5 b2 Rg1 Ne4 Rg7 Ng5 Bb6 Qe6 Bc5 Qb3 Bb6 Ng6 f8R Qd3 Re8 Nf8 f7 Be6 Rh7 Bb3 Re7 Bd1 Rh8 b1Q Bc5 Qbb3 Bb4 Nfh7 f8B Bc2 Bg7 Nf8 Bf6 Nf7 Bh4 Ng5 Ba4 c6 Bg3 c5 Rc7 Bg1 N4e6 Bd4 Bac6 Bg7 Kf2 e1Q+ Kg2 Qee4 Kf2 Bb2 Bd7 Qc6 Ke1 Bd4 Be8 Be3 Ned4 Qce4 Bec6 Qe8
rr2B1Bq/rP1bP3/np3B1K/3R1r2/1P1N2P1/N1bRn1N1/p1RB3k/r7 w - - 0 1 illegal: No possible last move
n2q2Nr/3R1b1K/2rNk1p1/R1B5/PN1b2Pn/B2PqN1p/r1BPR3/7r w - - 0 1 illegal: No possible last move
4BKR1/k1P3n1/p1r1NBr1/rqN3R1/P1pPn3/1NP2bR1/1B2Bn1q/1n6 w - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 exd5 g5 b4 c4 fxg5 Bh6 g6 Be3 g5 Bc5 Qg4 hxg4 bxc5 Rh5 Be2 Rh4 Bf1 Rh8 Ke2 Kd7 Ke3 Kc7 Ke4 e5 a4 b5 d4 Kb7 h4 b4 d6 f5+ Kd5 b3 h5 e4 c3 e3 d7 e2 Ke6 e1N Kf7 g3 g7 b2 h6 f4 g6 f3 h7 f2 Nd2 b1N Rh3 g2 Ngf3 g1Q Be2 f1R Rg3 Na6 Bb2 Ne7 g8B Nd3 g7 Nf2 Ne1 Qa5 Nb3 Qh2 Kf8 Rg1 Nd3 Qb5 d8N+ Kb8 c6 Bg4 Ne6 Nc5 Ra2 Nce4 Ndc5 Nf5 Ra1 a6 Ra2 Ra7 Ra1 Re7 c7+ Ka7 Ra2 Bf3 Rg5 Rg3 Ra1 Nbd2 Rg1 Rg4 Rg3 Nb1 Nf4 Re5 Nfe6 Ne3 Ke7 Rf5 Bf7 Rf8 Bg6 R8f6 g8R Re5 Bf7 Nf5+ Kf8 Ng7 h8B Rh6 Be8 Rg6 Nf4 Rc6 Nfe6 Rd5 Re5 Rg6 Reg5 Nf5 Be5 Ng7 Bf6 Qb6 Nd7 Ra5 Ndc5 Qb5
1N2nr2/P2b2Pn/Np1B1pbR/2n2RR1/1P2q3/B2p1P1K/1rB2R2/1Nk2q2 w - - 0 2 legal: proof: h4 c5 d4 g5 hxg5 d5 b4 a5 e3 a4 Qd3 Bg7 Qb3 axb3 dxc5 d4 Rh4 d3 Rh1 Bd4 exd4 Qd6 Kd2 Qc7 Ke1 Qd8 a4 Kd7 g4 Ke6 c4 h5 a5 b2 c6 b6 g6 f6 c7 h4 a6 h3 d5+ Ke5 d6 Kd4 g7 e5 c5 h2 a7 e4 c6 e3 d7 e2 g5 Ba6 c8N Bc4 g6 Ba2 c7 Na6 f3 Rh3 Kf2 e1Q+ Kg2 Rb8 Nd6 Qde8 d8B Q8e4 c8R Nh6 g8R Nf7 Bc7 Nc5 Nb7 Nd6 Be2 Bf7 Ra2 Ne8 Bd1 Rh5 Bd6 Qf1+ Kg3 Be6 Ba4 Bd7 Bc2 Rh8 Rc6 Rc8 Rg7 Rf8 Ne2+ Kc4 Nd4 Rc7 Nc3 b1B Ba3 Rc8 Rb2 Ba2 Nb1 Bb3 Rc7 Bba4 Nc6 Bb5 Nd2+ Kc3 Nb8 Bf5 Rce7 Bbd7 Re5 Rc7 Rh7 Rc8 g7 Bg6 Rg1 h1N+ Kh2 Rc6 Rgg5 Nf2 Rh6 Nh3 Rgf5 Ng5 Nb1+ Kc4 Kg3 Nh7 Rg5 Kd4 Ref5 Ke3 Kh2 Qc1 Kh3 Qd1 Nc3 Kd2 Nb1+ Kc1 Kg2 Na4 Nc5 Qf1+ Kg3 Rc7 Nca6 Rc3 Kh2 Nc5 Kg3 Rb3 Kh2 Qfe1 Kh3 Qf2 Bd1 Qfe1 Rf2+ Rb2 Bc2 Qf1+
Nr2b1K1/b3R1P1/3p1nqk/2pPR2r/B1NbR1P1/2PB2B1/pR6/3N2qr w - - 0 1 legal: proof: f4 e5 fxe5 g5 a4 g4 b4 g3 b5 Ba3 hxg3 Nh6 g4 Ng8 g5 Bf8 c3 Na6 a5 Nb4 Qa4 Nd5 Qa3 Nb6 axb6 Qe7 Qa4 Qd8 Qa6 bxa6 Kf2 f5 Kf3 Kf7 Kf4 Kg7 d4 c5 e4 h5 g4 a5 b7 h4 b8R h3 g6 a4 e6 a5 Ke5 f4 b6 h2 e7 f3 e8B a3 d5 a4 b7 a2 Nh3 a3 Bf4 f2 Nd2 Be7 Re1 a1B Bd3 f1Q Bg3 a2 Nf2 Ra6 Nc4 Qg1 Nd1 Kh6 g7 Qa5 Ra8 Qb6 b8R Bb7 Ra7 Bc6 Rc7 d6+ Ke6 Qb1 Kf7 Bd8 e5 Rb6 e6 Nf6 e7 Bb2 Re4 Bc1 Bd7 Rh7 e8N Be3 Ra7 Rb4 Nc7 Bd4 Na8 Bb6 Be8 Rb5 Rae7 Ba7 R7e5 Rb2 Rb7 Rb5 Rbe7 Rb8 Bd7 Qf1 Rg1 h1R Rg2 Qg1 Rb2 Qc2 Bc8 Bb5 Kf8 Be8 Bd7 Kg6 Ba4 R7h5 Rf5 Kh6 Rfe5 Qc1 Rf5 Qg5 Rfe5 Nh7+ Kg8 Qf6 Rc2 Qg6 Rb2 Nf6+
r5n1/p4BB1/K3Nr2/1P2pqq1/P1N2P1b/R1R1Rp1B/2r2P1k/1NB2b1q w - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 f5 Qa4+ b5 cxb5 f4 Qb4 Nd7 Qe4 Ne5 Qc4 dxc4 e3 f3 Na3 Ng6 Nb1 Nf4 exf4 Bf5 Bd3 Bd7 Bf1 Bc8 d4 Kf7 Kd2 Ke6 Kc3 Kf5 Kb4 Kg4 Ka5 e5 a4 h5 b4 c5+ b6 c3 b5 c2 d5 h4 d6 h3 g6 c4 g7 c3 d7 h2 Nh3 Qc7 d8B Qf7 b7 Bf5 b8N Bg6 Ka6 Rh7 Ra3 Qb3 Nd7 Qf7 Bf6 Qa2 Ng5 Qf7 Ne6 Be7 Nb6 Rh6 Nc4 Bd3 Rg1 h1Q g3 Be2 Bh3+ Kh5 Rd1 Bf1 Rd3 Qg6 Re3 Qg5 g4+ Kh4 Nbd2 Bd8 Nb1 Rg6 Be7 Rf6 Bf8 Qf5 g5 Qg2 g6 Qgg5 Bb2 Nh6 g8B c1Q g7 c2 Bf7 Ng8 Ra1 Qe1 Ra2 c1R Raa3 Rc2 Bc1 Nh6 g8R Qd1 Rg7 Ng8 Be8 Qe1 Rc7 Be7 Bg7 Qd1 Bg2 Qe1 Bf7 Kg4 Bh1 Kh3 Bg2+ Kh2 Rc5 Bd3 Bh3 Qh1 Na5 Bf1 Rcc3 Bd8 Nc4 Qgg6 Be8 Rf7 Nb6 Bh4 Nc4 Rf6 Bf7 Qgg5
2B1Rbb1/2Nrqr1p/4pr1P/n2pKB2/r1PN3p/2R5/k2P3P/2B2NRN w - - 1 2 illegal: No proof kernel
1nnb3r/4BNPk/P3q2q/1N2Qn2/PKrn2R1/1R1b1PR1/N3R1n1/6N1 w - - 0 1 legal: proof: c4 a5 g4 h5 e4 f5 exf5 d5 cxd5 a4 f3 a3 bxa3 g6 a4 Nf6 a5 Ng8 Bh3 Ra6 fxg6 Ra7 g5 Ra8 Bg4 hxg4 a4 b5 h4 c5 d4 e5 Kd2 c4 Kc3 e4 d6 e3 d5 g3 a6 g2 h5 e2 g7 Kf7 h6 Kg6 h7 e1N d7 Qe7 d8N Qe6 d6 Ne7 d7 Nf5 Nc6 Be7 Rh3 Bd8 Kb4 c3 Qd5 c2 Ba3 c1Q Rg3 Ra7 Nc3 Rc7 Nd4 Rc4+ Kb3 b4 Rb1 Bb7 Qe5 Be4 Na2 Bd3 Nb5 Qf4 Rb2 Qh4 Re2 Qh6 Nh3 g1N g8R+ Kh5 g6 Ng2 Rb2 Ne2 Ng1 Nc3 g7 Nd5 Re2 Nb6 Rf8 Nc8 Rf7 Ba5 d8R Bb6 Rd4 Bd8 Rh3+ Kg6 Rb7 Rf8 h8N+ Kh7 Nf7 Rh8 Kb2 b3 Rg4 Bb6 Bf8 Bd8 Ka3 b2 Rhg3 b1N+ Kb3 Na3 Be7 Nc2 Rb6 Ncd4+ Ka3 Rc5 Kb4 Qd7 Rc6 Rc1 Rc3 Qde6 Rb3 Rc4+
BNnRNk2/1PK2q2/5N2/2b4N/1RbbR3/P2b1rQ1/3PP1R1/2rb2rq w - - 0 1 legal: proof: f4 e5 fxe5 b5 b4 a5 bxa5 h5 c4 d6 g4 Nc6 Ba3 Na7 Bc5 b4 gxh5 Nb5 cxb5 dxc5 Kf2 f5 Kf3 g5 h4 g4+ Kf4 c6 b6 c4 e6 c3 Ke5 g3 a6 b3 h6 c2 a3 c1B h7 f4 e7 f3 a7 c5 h5 g2 h6 b2 Rh4 f2 Qe1 c4 Nc3 b1B Ne4 c3 Nh3 g1R Bg2 f1B Qg3 c2 Nf4 Ba6 Nh5 Rc8 a8N Qd7 Nef6+ Kf7 e8N Bd3 Be4 Ne7 Nac7 Bg2 Ba8 Bd5 b7 B5c4 Na6 Bb2+ Rd4 c1Q Nb8 Rg8 h8R Bbc2 h7 Bd1 Rb1 Rg4 Rg8 Rf4 h8R Rf3 Rg5 Rc7 Rg4 Nc8 Re4 Bb4 Rg8 Bc5 Rg5 Ba1 Rb4 Kf8 Rg6 Qg7 Rgg4 Ba6 Ke6 Bac4+ Rd5 Qg6 Rg5 Rc6+ Kd7 Bad4 Kd8 Qf7 Rd7 Ra6 Kc7 Qb1 Qf4 Rd6 Rg2 Qa1 Qg3 Rb6 Ra4 Rb1 Rb4 Rc1 Nhg7 Qh5 Rd8 Qh1 Ngh5 Qa2 Rf2 Qb3 Rg2 Bb5 Rh4 Qg8 Rf4 Bbc4 Re4 Qf7+
1r1R3n/q3PP1P/nB2B1RR/2N4P/3B4/2n1r1Qn/Kp1B1Rb1/3k1r1n w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 h5 exf5 c5 g4 Qa5 gxh5 Qc7 b6 Qd8 b4 e5 d4 e4 b5 Bd6 Nc3 Na6 Na2 Be5 dxe5 Nb8 Nb4 cxb4 Kd2 Kf7 h4 g5 f4 d5 c4 a5 Kc2 a4 Kb1 b3 c5 e3 e6+ Kf6 b7 b2 h6 d4 h7 d3 e7 g4 b6 e2 c6 e1N c7 a3 Qb3 g3 Ka2 g2 Ne2 g1N Nd4 d2 Ne6 d1N Qg3 Ra5 Bd2 Re5 Bh3 Qd7 Nc5 Na6 b8B Nd3 b7 Nh6 Ba7 Nf7 b8B Re3 Bb6 N3f2 B8a7 Bb7 c8R Bg2 Rd8 Qb7 Bg4 Ngh3 h5 Re8 Rg1 Nh8 Rc1 Nh1 Rc2 Kg7 f6+ Kh6 f5 Kg5 f7 Rf8 Rd6 Rb8 f8R Qc7 f6 Nc3+ Kb3 a2 f7 a1R Rfd8 Rf1 Rh6 Na4+ Ka2 Qd7 Qh4+ Kf4 Be6+ Kf3 Qg5 Ke2 Qg3 Be4 Rg2+ Kd1 Rf2 Bd5+ Rc4 Bg2 Rg4 Qc7 Rgg6 Qd7 Bba5 Qc7 Bac3 Qd7 Bb6 Qa7 Bd4 Nc3+
3q2bR/N2K1RPq/P1nbr3/1R1n1N1p/1BQ2R2/2P5/Pp1k1N1q/n5N1 w - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 f5 exf5 c4 f4 g6 f6 Qb6 f5 Kd8 f7 Kc7 d3 Kc6 dxc4 Qc7 c5 Qd8 h4 Kc7 g4 Ra7 f6 Ra6 g5 Ra8 Bh3 Kc6 Bf5 gxf5 g6 b5 Qd3 Ra6 Qd1 Rb6 Be3 Kb7 Bd4 Rd6 Be5 Kc6 Bb2 Rd3 Bc1 Rg3 Be3 Na6 Bc1 Rg5 hxg5 Nb8 Kd2 Kd5 Kc3+ Ke4 Kb4 d5 c6 e5+ Kb3 h5 c7 b4 Ka4 d4 Kb5 f4 c3 f3 a6 d3 g7 b3 g6 f2 Nd2+ Ke3 Rb1 f1Q Rh4 e4 Ba3 Nc6 Bb4 Be6 c8N Rh6 Rf4 Qh3 Qg4 Bd6 f8R Nge7 g8N Nd5 f7 Qh2 g7 Rg6 Nge7 b2 Rh8 Qg8 f8R Qh7 Na7 Bg8 R8f5 Rh6 Rbf1 Re6 Nb3 d2 Nc5 d1Q Nd3 Kd2 Nf2 e3 Rg5 e2 Nf5 e1N Qe2+ Kc1 Qc4 Nde7 Kb6 Nd5+ Kb7 Kd2 Kc8 Nc2 Kd7 Na1 Ne3 Nde7 Rb5 Nd5 Nf5 Rh6 Re1 Rf6 Re7 Re6 Rf7 Qa4 Nh6 Qa5 Nf5 Qd8+
4NB2/PN1r4/rQN2n2/1r1kbB2/5bPB/pb2qP2/pR3B1P/Kq5N w - - 0 1 illegal: No proof kernel
n1R4n/2PBR3/1R3NR1/3n1PP1/NpKrrq1b/p3P3/5nq1/QN1k3N w - - 0 1 illegal: No possible last move, all moves rejected
1k6/1r5P/2n1N2P/1N1R1N2/2p2n1q/R1pQ1pBP/K1Pq1b2/rRN2R1b w - - 0 1 illegal: No possible last move, all moves rejected
rnbN1N2/p4PRQ/5pq1/1qkN2P1/P4R1N/qR1n3P/4p2q/3B2KR w - - 0 1 illegal: No possible last move
1bB2q2/b3NRb1/p2p4/4bKP1/N2BrN2/rQ1P1p2/PP3p2/BB2kN2 w - - 1 2 illegal: Other
B1b1r3/B1P1NnRP/1RB1Q2q/3q2n1/1K1RP1r1/4p2r/3bPBq1/1k1b3R w - - 0 1 illegal: No proof kernel
2NQq2q/P5R1/BR2PbB1/2k1r3/1rPqB2q/B2p1RR1/b1qP4/1n2n2K w - - 0 1 illegal: No possible last move, all moves rejected
1r4n1/P2P3n/r2R2Kp/bk3q2/bPNB1RQP/1b2q1b1/1NNRN2r/R7 w - - 0 1 legal: proof: e4 a5 b4 g5 f4 b5 fxg5 d5 exd5 a4 Bc4 Ra5 Bb3 axb3 c4 Ra3 cxb5 Ra8 Kf2 Kd7 Kf3 c5 Ke4 e5 Kf5 b2 a4 f6 h4 c4 g4 e4 d4 h6 b6 e3 d6 Kc6+ d7 e2 g6 e1R d5+ Kb7 d6 Kc6 g5 c3 b7 c2 a5 Qe8 a6 Re2 g7 Qh5 a7 Kb5 Rh2 Qe8 g6 Be7 Nd2 b1B Nc4 Bd8 Nb2 Ba5 Be3 Ba2 Bd4 c1B Rg2 Rc2 Qg4 Bb3 Ne2 Bf4 Rf2 Bg3 Rf4 Nc6 b8N Ne5 Nc6 Nf3 Ne5 Rb8 Nec4 Qe3 Nd3 Ng5 Ndb2 Ba6 d8N Nh7 d7 Rb6 Ne6 Rd6 Nc5 Bb7 Ncd3 Ra6 Ne1 Rd2 Nc2 Bc6 Nc1 Rh2 Ne2 Qc1 Ke6 f5 Kf7 Ne7 g8R Qe3 Rf8 Ng8 Rf2 f4 g7 f3 Kg6 Ba2 Rg2 f2 Rf4 f1Q Rgf2 Bb3 Rg2 Ngf6 g8R Qff3 Rg7 Rb8 Re7 Ng8 Re6 Bd5 Rd6 Ba4 Nc1 Qf1 Rd2 Be6 Ne2 Qh3 Ne5 Beb3 Nec4 Qf1 Re4 Qf8 Rf4 Qf5+
3RN3/q1bnBP2/4b3/rb6/1q1kpPRN/1r3PN1/3NPnR1/rbRK1Q2 w - - 0 1 illegal: No proof kernel
Qr3RB1/1R1rK3/2Rn4/PP1Rnq1k/P5Np/1Np2n2/brP3n1/N2Nb3 w - - 0 1 illegal: No proof kernel
2Knq1Q1/1P6/5B2/4P1N1/RR2bp1q/1qbBRPPB/Rp1n1r2/r3q1kB w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bf8 hxg5 c6 b4 Ke7 b6 Ke8 Nc3 c5 b5 Na6 Nd5 Nb8 Nb4 cxb4 Kd2 Ke7 Ke3 Ke6 Kf4 h5 c4 f5 e4 d5 g6 a5 g3 b3 f3 d4 c5 a4 c6 h4 c7 a3 g7 h3 b7 a2 b6 b2 Bg2 h2 Nh3 Nc6 b8R Bb7 c8B+ Qd7 Be3 d3 Bd4 Nd8 Qb3+ Bd5 Ba6 d2 Bd3 Nf6 g8B+ Qf7 Rhd1 Bb4 Bh1 Bc3 b7 Ra6 Ra8 Rh5 Re1 d1Q Re3 Ra7 Bh7 Qe8 Bg6 Ra3 Ra4 Qc2 Qc4 Qb3 Bh7 Rh4+ Kg5 f4 Bf5+ Ke7 e6 Kd6 e7 Rh7 Bb6 Ke5 Ba7 Bc6 Qg8 Rh6 Bc5 Rh4 Bb4 Kd4 Bd7 Bd5 Kf5 Rh8 e5 Ne4 Ng5 Nd2 Kf6 Bc6 Bh3 Be4 Rd1 a1Q Rde1 Qb5 e8R Rh4 Re6 Qe8 Rb6 Qad1 Rba6 Ra1 Ra2 Rh7 R6a4 Rc7 R1e2 Qe1 Be7+ Rc4 B1g2 h1Q Rb4 Nc6 Ke6 Nd8+ Kd6 Qh2 Bf6 Qhh1 Bg4 Qh4 B4h3 Rc1 Bh1 Rc2 Rb6 Ra4 Kc7 Ra5 Ra6 Ra3 Ra8 Ra5 Kc8 Ra7 Ra5 Ra6 Rb5 Ra1 Ra2 Nc4 Rh2 Bb4 Rba5 Rg2 R5a4 Bd2 Bc2 Ba5 Rc3 Bb4 Bd3 Ke3 Rc2 Nd2 Rc4 Bc3 Rcb4 Kf2 Nh7 Kg1 Ng5 Re2 Rf2 Nc4 Rh2 Rc2 Re2 Rd2 Re3 Rf2 Qf7 Nd2 Qd5 Qed1 Qg8 Qe1
1nN1qn2/2Pr4/P1R1n3/1N1RR1pB/Np1Np1P1/1K5k/PR3rb1/2Q1bb2 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 c5 d4 f6 dxc5 h4 g4 f5 exf5 Na6 Bf4 Nb8 Bg3 hxg3 Kd2 Kf7 Kc3 Kf6 h4 d5 f4 b5 h5 g5 a6 e5 h6 b4+ Kb3 d4 c4 g2 c6 d3 h7 e4 c7 d2 c5 Qd6 c6 Qd7 Bb5 Bh6 Rh2 Qe7 Na3 Qd6 Qc1 Qe7 Ne2 g1N Nd4 Bd7 c8N Qe8 c7 d1B+ Rc2 Ne7 Rb1 Rg8 h8R Rf8 Rb2 Bf3 Rc6+ Be6+ Bc4 Ng6 Nab5 Bg7 Rhh2 Nh3 Rhd2 Bg2 Rd1 Kf7 f6 Bd5 f5 Nhf4 Rd3 Ne6 Rd1 Rh8 Rd3 Ngf8 Rdd2 Rh2 Rd1 Kg8 f7+ Kh7 f6 Kg6 Rf1 Bh8 Rf5 Bg7 Re5 Rh7 Ka4 Bh8 Bb3 Bc4 Rd5 Bcf1 Bc4 Nfd7 f8R Re7 f7 Kf6 Rg8 Nf8 Kb3 Rd7 Re5 Nh7 f8N Bg7 Ng6 Nf8 Nb6 Bh8 Ne7 Bg7 Rec5 Bh8 Bd5 Ke5 Na4 Bg7 Nc8 Bf6 Qe1 Kf4 Qc1+ Kg3 Rg7 Kh3 Re7 Be5 Bc4 Bg3 Rd5 Nf4 Ree6 Be1 Ree5 N4e6 Rdc5 Nd8 Bf7 Nde6 Bh5 Ra7 Rcc2 Rb7 Rd6 Rb6 Rdd5 Rbd6 Rcc5 Rf7 Rcc2 Rf2 Rc6 Rd7
1B3b1K/p1n1k2N/q3N2B/PnPbP3/2B1Pn2/4rNQ1/1pqB1p2/3N2rR w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 c5 gxh5 Qc7 b4 Qa5 bxc5 Qd8 a4 d5 c4 Rh7 c6 Ne7 c5 Ng8 Ra3 Rh6 Rc3 Rh8 Rc4 dxc4 Kf2 g5 Kg3 b5 h4 f5 d4 c3 h6 g4 Kf4 c2 h5 g3 a5 b4 c7 g2 h7 b3 h6 b2 Nc3 Be7 Qd3 Ba6 c8N Qd7 Nd6+ Kd8 Nf7+ Ke8 Qg3 Qc6 Nd1 Bb7 Bd2 c1Q Nf3 g1N N7g5 Nf6 e3 Bd6 Bc4 Rg8 h8B Ke7 h7 Na6 Bg7 Nc7 h8B Rae8 Bh6 Nb5 Nh7 Qa6 B8g7 Bd5 Kg5 Ne2 Kg6 Qc2 Bf4 Rgf8 Bgh6 Rh8 Kg7 Rhf8 Bfg5 f4 Bh4 Bg8 Kh8 Bd5+ Qg8 Rf7 Bg3 Rg7 Bh2 Rg1 Bg3 Nd7 Bh2 Nf8 Qg3 Ne6+ Qg8 Rd8 Bg3 Kd7 Nh4 f3 e4 f2 Nf3 N2f4 Bh4 Rb8 Bd8 Na3 Bc7 Rb3 Bb8 Bc6 d5 Bf8 d6 Re3 Qg3 Ke8 Qg7 Nb5 Qg3 Bd5 d7+ Ke7 d8N Nec7 Ne6 Qc8 Nd8 Qb7 Ne6 Qa6
b1BN4/1b1KPn1N/Pr2p1rN/1nP5/pb1B4/Q1q2p2/P1B1R3/1q3NBk w - - 0 1 illegal: No proof kernel
nRn2R2/Pppr2B1/P1R1pNK1/p3P1R1/2PN4/k5q1/7r/NQ1bN1nb w - - 1 2 illegal: No proof kernel
3Q2N1/p3pkBP/5N2/Prp4n/1BP1BK1b/qNr4B/2pPp2N/2R2b1n w - - 0 2 illegal: Other
R1BKR1B1/rq2B1PP/Np1bBN2/7r/2P5/n5Pb/1B1qk2B/n1q3q1 w - - 0 1 legal: proof: e4 c5 f4 g5 fxg5 d5 exd5 a5 b4 h5 bxa5 h4 Bd3 h3 Bh7 Kd7 Qg4+ Ke8 Qb4 cxb4 Nxh3 Nf6 Ng1 Ng8 Kf2 Kd7 Kg3 Kd6 Kh4 Kc5 d4+ Kc4 a4 f5 g6 b3 Kg5 f4 h4 b6 d6 b2 h5 f3 h6 f2 g7 f1Q d5 Ra7 d7 Rc7 a6 Qe1 d6 Qf2 a7 Bb7 a8B Rc6 a5 Qf1 a6 Qf3 a7 Qa3 Nh3 Qe3+ Nf4 Qc7 d8B e5 d7 e4 Nc3 b1Q Re1 Qa2 Nd5 Nf6 Nb4 Ne8 Bb2 Bc8 Be7 Nd6 Kf6 Qc1 d8B e3 Nfd5 e2 Bb7 Na6 a8B Bh3 Bg8 Nc5 Na6 Nb3 Bc8 Qb7 Bc7 Nb5+ Bge6 Rh7 Bh2 Na3 g3 Rc7 c3 Kd3 c4 Rd7 Kf7 Qab1 Ke8 Qbc2 Nf6 Q2d2 Ra2 Rc7 Kd8 Na1 Rg1 e1Q Rg2 Qcc3 Re2 Qcc1 Re4 Qg1 Re1 Qa7 Bad5 Qa8 Bg8 Qb7 Bde6 Rh8 Bb4 Bd6 h7 Rc5 Re4 Rh5 Re2 Be5 Be7 Bd6 Re4 Qde1 Nb8 Be5 Bd5 Qb1 Bb4 Qc2 Bd7 Qa8 Ke7 Qa6 Bgf7 Nb5 Ra4 Rf8 Bc8 Qed2 Bg8 Rf7+ Kd8 Qcc1 Re2 Bf4 Re8 Na3 Bde6 Ke2+ Bd6 Qa8 Ra5 Qag2 Ra8 Ra7 Na6 Q2h1 Bgf7 Qb7 Bg8 Qa5 Bf8 Bd6 Be7 Qad2
K7/P2B1n1B/1b1B1k2/qqqP1r1n/3rP3/B1p4n/2P1bNq1/RN1B2RB w - - 0 1 illegal: No proof kernel
1k6/p1b1P3/1N1NbK2/bBP1rqB1/3N1rR1/3NPnrp/P3p3/Nn2NR2 w - - 0 1 illegal: No possible last move, all moves rejected
2bn1R1R/KP2P1r1/r2N2P1/5Br1/2q4q/BN1B1k2/2bR2rP/2q1R2B w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 f5 d4 e5 fxe5 f4 dxc5 f3 g3 Be7 Qd5 Bf6 Qd1 Bg5 Bh3 Na6 Bg4 Nc7 Bf5 Bf4 gxf4 g5 Bh3 g4 Bf1 Ne6 Kd2 h5 Qe1 Ng5 fxg5 h4 Qg3 hxg3 Kd1 Kf8 Ke1 Ke8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 b4 a5 e4+ Ke6 c4 d5 c6 a4 Kc5 f2 b6 a3 b7 g2 b8R d4 c7 d3 Kb6 a2 c5 g3 b5 d2 c6 d1B g6 Qf8 Bd3 f1R Nc3 Rh7 Nge2 g1Q+ Nd4+ Ke7 e6 Kd6 e5+ Ke7 Ne4 g2 Nd6 Rff7 Ba3 Bc2 Rd1 a1Q Rd2 Qgc1 Re1 g1R Nb3 Ra5 Ra8 Rg5 Rb8 Nh6 Ra8 Ba6 c8R Qh8 c7 Qa2 Ka7 Rf2 b6 Nf7 Rf8 Rfg2 c8B Nd8 Bb7 Ra4 Bbe4 Rg7 Bf5 Qh4 Rb8 Rb4 Ra8 Bc8 b7 Rb6 Rb8 Qaa1 Rh8 Qad4 Ra8 Rg8 Rb8 Qc4 Ra8 Kf8 e7+ Kg7 e6 Kf6 e8B Rg7 e7 Rc6 Bed7 Rb6 Bfe4 Ke5 Bdf5 Kf4 Bf3 Rg1 Bh1 R1g2 Rf8 Kf3 Re4 Nf7 Rg8 Bd7 Raf8 Bc8 Rh8 Nd8 Re1 Ra6+
2Nr1nbq/1k2Nr1R/1p1rP1R1/PP5r/1b3BPn/3R1R2/1q5K/1Nq2N1B w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Nbd7 b4 Nb8 b5 Ng8 Qb3 Ne7 Qb2 Ng8 Qb4 axb4 Kf2 Kd7 Kg3 f5 d4 c5 e4 Kc7 a4 h5 d6+ Kb6 d5 h4+ Kh2 h3 g4 b3 e6 f4 e7 f3 e8N f2 e5 b2 g6 c4 d7 c3 g7 c2 d6 Nh6 g8N Nf5 Bg2 f1R Bf4 c1Q Ne2 Rh6 Ng3 Nh4 a5+ Ka7 Ne7 b6 Ra2 Bb7 Ra1 Bd5 Ra3 Bg8 Rf3 Kb7 e6 Rh5 Be3 Qdc8 d8R Nd7 Bf4 Q8c3 Rc8 Qh8 Rc5 Rd1 Nf1 Rd8 Rg5 Rh7 Rg6 Rf7 Nc8 Be7 Nf6 Nf8 d7 Bb4 Nd5 Rd2 Nde7 Rd6 Rg1 Bc5 Bh1 Bb4 Na3 b1Q Rg2 Qa2 Nb1 Qab2 Rd2 Qbe5 Rdd3 Qeb2+ Kg3 Re8 d8R h2 Rd7+ Ka8 Rc7 Red8 Rc5 Kb8 Rh5 Kb7 Kh3 Qe3 Rh7 Qec1 Bg2 h1R+ Kg3 Rh2 Bh1 Re2 Kh3 Re5 Kg3 Rh5 Kh3 Qa3 Kh2 Qab2+
K1qq1R1R/1NBp3b/2PP3B/2r1np2/n4P1k/rN4R1/rBP2r1r/3BR3 w - - 0 1 illegal: No possible last move
1RR1r1q1/1pBpkr2/r3n2P/R2PbPRN/1P1B4/1N1Bbp1q/8/n1K1B3 w - - 1 2 illegal: No proof kernel forced: wxLB
r1n2r1N/Pk1Pq3/1p5R/2p1Kp1p/BB1NRP1b/5r2/2Pr1R2/Nb1R1N2 w - - 0 1 legal: proof: e4 d5 exd5 a5 f4 g5 b4 g4 bxa5 Kd7 Qf3 Ke8 h4 gxf3 g4 Qd6 g5 Qd8 h5 Nd7 Na3 Ne5 Nb1 Ng6 hxg6 Qd6 Nc3 Qd7 Nb1 Qd8 Kf2 Kd7 Ke3 e5 Ke4 c5 a4 Kc7 d4 h6 a6 b6 d6+ Kc6 d7 f2 a7 f6 g7 Bd6 a5 Kb7 g6 Bf8 d5 Be7 d6 Qf8 a6+ Kc6 d8N+ Kd7 Nc6 Rb8 a8R Bd8 a7 Qf7 Na5 Qa2 Nd2 Ne7 g8N Qb2 g7 Qb5 Nab3 Kc6 Ba3 Kb7 Ne2 Qe8 Bb4 Be6 d7 Nc8 Ned4 Qe7 Bb5 f1R Rd1 Rf3 Na1 Ba2 Ba4 Bb1 Nf1 f5+ Kd5 e4 Rh2 e3 Rf2 h5 Nh6 e2 g8R e1R Nf7 Qe3 Re8 Re2 Re4 Bh4 Ke5 Rf8 Nh8 Rd2 Ke6 Nd6 Ke5 Rbd8 Rc8 Qe2 Rc6 Ra8 Rc1 Nc8 Rh6 Qc4 Rce1 Qf7 Rd1 Qe7+
4K3/1BBRpp1N/Nr2Rrn1/4Pkq1/1p1r1P1q/B5B1/1P1P1N2/b1Nn1bb1 w - - 0 1 illegal: Other
3b1Nr1/4pK1B/1pp1P1pk/1qR1B1n1/b1r3P1/N2R1PrN/NPRb4/6nR w - - 0 1 illegal: No proof kernel
nq1b2RR/2k1N2q/4pNn1/1RpqP1r1/Rr3p2/p3NPN1/P1P2KBB/7n w - - 0 1 illegal: No possible last move
Q2r1R2/rP2rb2/b1Nq4/NPkqr1B1/1RBn2r1/5N2/P2P2P1/3K2Bb w - - 0 1 illegal: No proof kernel
5Q1b/n2bPnR1/K4P2/3P3R/P2qN1pB/4nk1B/P1qrr1NB/R4q2 w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 e5 b3 d5 cxd5 a4 bxa4 fxe4 d4 Bc5 dxe5 Bf8 Ke2 Ke7 f4 g5 h4 c5 h6 b5 f5 e3 Kd3 g4 h5 e2 e6 Kf6 h7 Ke5 f6 e1N+ Kc3 Ke4 h6 c4 Qd2 Qb6 Nf3 Nc2 Bh3 Bg7 Nh4 Bd7 Ng2 Ne3 Kb4 Qd4 Nc3+ Kf3 Ne4 Ra7 Qd3 c3+ Qc4 Rc7 Ka5 b4 Qc5 b3 Qf8 Nc6+ Ka6 c2 Ba3 c1Q Bd6 b2 Bh2 b1Q Re1 Nge7 Re2 Rg8 h8B Nd8 h7 Nec6 Rb2 Qg1 Rb7 Nf7 Ra7 Qc2 Rb7 Bh6 Bg7 Na7 h8R Rc3 Rh7 Rd3 Rh8 Qf1 Rc7 Bf4 Bh6 Rg5 Rh7 Re5 Rg7 Bg5 e7 Bf4 Bg5 Rd1+ Rc4 Rd2 Bh4 Bh6 Nf4 Re2 Rc8 Rf5 Ng2 Re5 Rh7 Bg7 Rb8 Bh8 Rg7 Qg1 Rbb1 Rd2 Rf1+ Ke2 Rf5 Qf1 Rh5 Kf3+ Ka5 Nc4+ Ka6 Re6+ Nd6 Ree2 Ne4 Ne3
rR1Bn3/1PN2p1P/q1qqQbPn/6b1/3b2P1/4B1R1/2NKB1P1/1N2n2k w - - 0 1 illegal: No proof kernel
Q2B3K/4R2P/2r1P1P1/N2B1k2/2Nnpnqn/3PP2R/2B1n1qr/1R3nn1 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 f4 d5 fxg5 e4 Nf3 Bg7 Ng1 Be5 dxe5 d4 g4 h5 g6 d3 g5 d2+ Kf2 Be6 Qe1 Bc4 Qd1 Bd3 cxd3 Na6 Qb3 Nb8 Qe6+ Kf8 Qc8 Ke8 Qg4 hxg4 Ke3 Kd7 Kf4 Ke6 b4 d1Q h4 c5 h5 f5 g7 a5 h6 g3 h7 a4 g6 g2 b6 a3 b5 c4 b7 a2 b6 c3 Nd2 c2 Nc4 Ra5 Rh3 Nh6 Nf3 g1N Rb1 a1N Nfd2 Nc6 b8Q Nb4 b7 Ra2 Qa8 Nb3 b8R Nd4 Na5 Qe7 e3 Rc8 Bb2 c1N Be2 Rc6 g8B+ Qf7 Kg5 f4 Rd8 f3 Ndc4 f2 Rd7 f1N Ba3 Nd5 Be7 Rb2 Bd8 Nhf5 Kh5 Qd2 Bd1 Nce2 Bc2 Nh4 Kh6 Kf5 Re7 Qe6 Kg7 Ndf4 Bf7 Qf6+ Kg8 Qg5 Bd5 Qg4 e6 Nc1 Ba4 Qdg2 Kh8 Rf2 Bc2 Nce2 Rb6 Q2f3 Rb4 Rh2 Rb1 Qfg2
1rB2K2/3n2P1/RQ3R1P/PNR1BqP1/bn1p1P1N/3B3p/4q1n1/q4bk1 w - - 0 1 illegal: No possible last move
r1b5/1QB1B1B1/1nN5/bkPPb3/1p1PP2P/3K1pb1/1b2NqR1/1RR3r1 w - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 d5 exd5 c6 a4 Qd7 axb5 Nh6 b6 Qd8 b7 Ng8 b4 e5 b5 e4 b6 e3 f3 Na6 Bd3 Nc5 Bb5 Ne4 fxe4 cxb5 Ke2 Kd7 b8B f5 c4 g5 h4 a5 b7 f4 h6 g4 d3 a4 h7 f3+ Kf1 g3 Bc7 g2+ Ke1 b4 b8R a3 Nc3 e2 Kd2 e1B+ Ke3 a2 Nce2 Bd6 Nd4 Be5 Nc6 B1g3 Rb1 a1B Ne2 Ne7 Qg1 Rg8 h8B Bab2 Bg7 Qf8 Qf2 g1B Bd2 B1h2 Rhc1 Qf6 Bc3 Qd6 Kd2 Qc5 Qg1 Qa7 Qb6 Bg1 Qb7 Bb6 Bd4 Ba5 Bc5 Qb6 B5d6 Qf2 d4 Nf5 Bgf8 Ne3 c5 Nc4+ Kd3 Nb6 Kc2 Bgf4 Bh6 Rg1 Kd3 Bg3 Be7 Bgf4 Bcd8+ Bc7 Qa6 Bb7 Rc2 Bce5 Bc7 Bh2 Rg8 Bhf4 Rg7 Kc8 Rg2 Bg3 Bb8 Kd7 Bg7 Bc8 Ba7 Kc7 Qb5 Nd7 Bb6+ Kb7 Rcc1 Ra7 Qa4 Ka6 Bbd8 Ra8 Bc7 Nb6 Qa1 Kb5 Qa2 Nc4 Qa1 Bb6 Qa7 Ba5 Qb7+ Nb6
6r1/2q1p1Pq/B5R1/bRNqQ2B/1pP1N2P/P2b2pP/1B2n1k1/Kb3R2 w - - 0 1 legal: proof: e4 c5 d4 d5 dxc5 h5 b4 a5 g3 h4 gxh4 axb4 f4 b5 Nf3 g5 Ng1 d4 Nc3 g4 Bc4 Nd7 Nb1 Ndf6 Bf1 Nd5 exd5 Rh5 Qf3 Rg5 fxg5 Ra6 Qe2 Rh6 Qd1 Rh8 Kd2 b3 c4 Kd7 h3 f5 d6 Ke6 a3 Ke5 c6 Kf4 g6 Kg3 c7 f4 d7 f3 Nc3 d3 Ra2 b2 Na4 b1Q Kc3 d2 Qe2 d1Q Rb2 f2 Nc5 Nh6 Nf3 Nf5 Nd2 Bh6 g7 Rg8 Qe5+ Bf4 Rb4 Nd4 Be2 Qh7 Kb2 f1B Ka1 Kg2 Rb1 g3 Bh5 Bb7 c8B Qc7 d8R Be4 Ba6 Bc2 Nde4 Bd2 Rf8 Ba5 Rf6 Qd3 Rb3 Bb1 Rg6 Be2 Bb2 Qf3 Rf1 Bed3 Nc3 Qd5 N3e4 Ne2 Rb4 Bb6 Ra4 b4 Ra5 Qd4 Rb5 Ba5 Rb7 Qdd6 Rb5 Qd5
2Nn4/1nNp1RnP/Qn6/N1krPB1B/p5Rp/rb1B3K/PP2P3/5r2 w - - 0 1 legal: proof: d4 e5 c4 c5 dxc5 b6 f4 Ke7 fxe5 Nc6 Be3 Na5 c6 Nf6 c7 Ke8 c5 Nc6 Bd4 Nb8 c6 Ng8 Be3 Qe7 Bc5 Qd8 Bd6 h5 Bc5 bxc5 g4 h4 Qd4 Qg5 Qd1 Qh5 gxh5 Rh6 Qd5 Rh7 Qd1 Rh8 Na3 g5 Rc1 g4 Kf2 g3+ Ke1 g2 Ra1 Bh6 Nb1 Bg5 Na3 Bf4 Nb1 Bg3+ hxg3 Kf8 Qc2 Ke7 Qd1 Ke8 Kf2 Ke7 g4 a5 g5 f5 g6 c4 g7 c3 h6 f4 h7 c2 Qe1 c1N Nf3 g1R Nfd2 f3 Na3 Nd3+ Ke3 f2 Kf3 Nh6 g8B Ba6 c8B Bc4 c7 Nc5 Bf7 Nc6 Bh3 f1N Nb5 Nd8 Bh5 Rf8+ Bf5 Bb3 Nc4 Ne3 Ba6 Nd5 Qd2 a4 Qd3 Ncb7 Na5 Rf1+ Kg2 Nb6 Kh3 Rg8 Rg1 Rg3+ Kh2 Re3 Rg4 Rc8 Qc4 Rd3 Rd1 Rd5 Kh3 Rb8 Rdd4 Rc8 Rdf4 Rb8 Bc2 Ke6 Rf7 Nf5 c8N Ng7 Qd3 Rd6 Qg6+ Kd5 Nc7+ Kc5 Bf5 Rd5 Bad3 Ra8 Nc4 Ra5 Qh6 Rb5 Na5 Rb4 Qg6 Rc4 Qh6 Rc3 Qf6 Bc4 Qh6 Ra3 Qg6 Bb3 Qe6 Nc4 Qa6 Nb6
1r1B4/1p1b1Bq1/1Pp2n1R/QN1P1P2/R1qPPK1N/2NBpp2/1k4n1/3b4 w - - 0 1 illegal: No extended proof kernel
4R1K1/2r1N2n/2R1B1P1/1b2qPP1/b1r1N2b/3br2P/R2BPN1k/2q1bQn1 w - - 0 1 illegal: No proof kernel
r6N/PP2R3/P1r1b1P1/4q1bn/2bnbP2/1B2B1RQ/R1N2B1b/1bK3bk w - - 0 1 illegal: No proof kernel
1q2nn2/K2Q1b2/B1N1b2N/R4RPk/r6r/1Pr2Pr1/BB1bPPR1/n3n3 w - - 0 1 illegal: No proof kernel
1Nb1R1qq/NP1P1n2/1bK3Q1/1Nq2P2/PP5r/2b1rB1k/2q2B2/1b3RnB w - - 0 1 illegal: No proof kernel
3R1BNn/4PP1Q/2BPPrpn/5k1r/N3q1qr/1B2bb2/RKP3n1/3b2N1 w - - 0 1 illegal: No proof kernel
n1r5/kPP2q2/4RP2/2r2Rb1/B2QbP1N/4q2P/q1nB2p1/RKbr1NN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 f4 Kd7 c4 Kc7 Kc2 Kb7 b4 g5 h6 a5 h3 e5 h7 a4 f6 a3 b6 e4 c5 d3+ Kb3 d4 Ka2 e3 b5 e2 Qc2 e1B Nd2 g4 Ne4 g3 Qh2 g2 Be3 d2 Ng5 d1Q Ne2 d3 Nd4 d2 Ngf3 Qc7 Nb3 Qf7 Qg3 Bh6 Qf2 Ne7 Ng1 Qe2 Kb1 Ra5 c6+ Ka8 c7 d1R+ Bc1 Qe3 b7+ Ka7 Nd2 Na6 b8R Bb7 Bd3 Bc6 Bc2 Nc8 Ba4 Nb4 Nf1 Nb6 Qd2 Bb7 Qd4 Rc8 h8N Bg5 Ng6 Nc2 Nh4 Be4 Ra8+ Kb7 Ra6 Na8 b6 Rc5 Ra5 Bd2 Rb5 Ka6 b7 Ka7 Qd8 Rc3 Rf5 Rc4 Qd4+ Rc5 Ra2 Re8 Rb2 Rc8 Rb6 a2+ Kb2 Qe2 Re6 Be3 Bd2 a1Q+ Kb3 Qc3+ Ka2 Qcd3 Bc3 Bc1 Bd2 Qc3 Kb1 Qce3 Ka2 Qb5 Ngf3 Ba3 Ng3 Rc1 Re1 Rb1 Nf1 Qb6 Ng1 Qa6 Be8 Rb6 Ra1 Rb1 Bd7 Rd1 Bb5 Bc1+ Kb1 Qaa3 Ba4 Qa2+
R1rB1B1Q/1p3nPB/4qP1R/1R6/1PPk4/3P1bN1/nq3r1b/N1bKr2q w - - 0 1 illegal: No possible last move, all moves rejected
7b/qBP1BnRr/1P1R2Pp/3PQ1Pb/2nb1R2/N1kb1BK1/bN6/3n1r2 w - - 0 1 illegal: No proof kernel
N2n4/5q1p/K1rk3b/1n1PN1N1/2R1PbBQ/1P4bP/1r1R2qP/R1Bb2b1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Qd7 f4 Qh3 gxh3 exf4 d4 Ke7 Kd2 f5 Kc3 g5 Kb4 a5+ Ka4 c5 e4 c4 b3 c3 b6 c2 Kb5 f3 b7 f4 Ne2 a4 Bb2 c1B Na3 g4 Rg1 f2 Nc3 g3 Ra2 g2 Qf3 Nf6 Qe3 f3 Qe2 Kd6 Nab1 a3 Ra1 a2 Qe1 Bfh6 Nd2 Bg4 Na4 Rc8 Be2 f1Q Nb6 f2 Nf3 Ne8 Ng5 Bf4 Bc1 Nc6 b8N Nd8 N8d7 Rc6 Ne5 Ra7 Rh1 g1B Na8 Qg2 Bd1 Bh5 Bg4 Rg7 Ka5 f1Q Qh4 Qff3 Kb5 Bg3 Ka5 Qf7 Kb5 Nc7+ Ka5 Rc3 Kb6 Nb5 Ka6 B1f2 Rd1 Bg1 Rd2 Rg6 Rc2 Rd3 Rc4 Rd2 Bc8 Bd1 Bd7 Rb2 Bg4 Ke7+ d6+ Kf6 d7 Ke7+ Be6 Kd6 Bg4 Ne6 Rb1 a1B d8R+ Ke7 Rf8 Kd6 d5 Nd8 Rg8 Rc2 Rf8 Bad4 Ra1 Bde3 Rg8 Rb2 Rg7 Re6 Rg6 Bd2 Rf6 Bde3 Rf2 Bef4 Re2 Re7 Rf2 Rc7 Rd2 Rc6+
2BNR3/K1n4p/1rP2N1Q/1n1b2Pq/RbBNP3/Pq4k1/2P1b1b1/2B1rr2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 a3 Kg4 e4+ Kg3 e6 b5 c6 d5 g6 f5 g7 f4 e7 b3 Kc5 b4 Bc4 d4 Be6 f3 Bf7 b2 Qe2 d3 Be8 d2 Qd1 b3 Bd7 f2 Nf3 f1B Rg1 Nh6 g8B Qe8 Kb6 Qh5 e8N Nf5 Ne5 Na6 Nf7 Bb4 Nd8 Nc7 Nf6 Rb8+ Ka7 Nd4 Bc4 Rf8 Nc3 b1R Nb5 b2 Ra2 Ba6 Bc8 Rb6 Qe2 d1B Qe3+ Bf3 Qh6 B1e2 Rd1 Ra1 Rf1 b1Q Rb2 Qa2 Rd1 Qb3 Rd3 Kh2 g4 Kg3 g5 Rf7 Rd1 Bg2 Rf1 Rf8 Rf5 Rf7 Re5 Rf8 Re8 Rf7 Be3 Re1 Bc1 Rf8 Ng8 Rff1 Nf6 Nf5 Nd4 Nd6 Bd3 Bc4 Rb1 Bd5 Bc4 Qbf3 Rb2 Bd2 Rb5 Qb3 Ra5 Bb4 Ra4 Ndb5+
1q2n1Q1/2b1KPRN/R1B1P2p/3N1B2/bqk3n1/b4bPP/P2Bq1r1/2r1R3 w - - 0 1 illegal: No proof kernel
1N2R1QK/B2P4/1r3Pn1/br2Pq2/2br4/N1P1Bnpk/2B1qP2/R1qN2r1 w - - 0 1 illegal: No proof kernel
2r1nBq1/R1P3pN/1PQ1Bb2/8/1K2r1bR/1n2PPk1/R1P1B3/1Nbq2nn w - - 0 1 illegal: No proof kernel
R2nkbN1/Pb5Q/P1qn1P2/1B2q1N1/K1rpP1R1/B2P2Rb/b1n5/4Br2 w - - 0 1 illegal: No proof kernel
3qn3/PPP1NPb1/b2r1QBn/3P2n1/k4n1R/1q2B2p/1rR3R1/1N1K2Nr w - - 0 1 illegal: No proof kernel
r3r3/3q2Q1/2p1P1Pr/R1PBbn2/1N1r2PR/r1K2NnR/b2PkN2/B2r4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 Nc6 axb5 Nb8 e4 e5 fxe5 dxe4 b4 Kd7 c4 Ke6 g4 a5 b6 h5 b5 f5 c5 Kd5 g6 Kd4 b7 f4 b6 h4 Ra3 h3 Rb3 e3 Ra3 f3 Bb5 c6 Rb3 a4 Bc4 a3 Rb2 e2 Ra2 h2 Ba6 Rh6 Bc4 Bg7 Bf7 Kd3 Nc3 Qd7 Bd5 Ne7 Ne4 Nf5 Bb2 Bh8 Kf2 e1R Ba1 Re3 Kf1 f2 Nf3 Re2 Qc1 Re3 Qb2 Bg7 Kg2 f1R Nf2+ Ke2 Qd4 Rd3 e6 Rd1 Qf6 Rd4 Qf7 Be5 Qg7 Na6 b8N Ng3 b7 Nb4 Na6 Nc2 b8R Bb7 Rg1 h1R Nb4 Ba6 Rh8 Bc4 Rh7 R1h5 Rh1 Rf5 Rh3 Rff8 Rb2 a2 Rb3 Rf7 Ra3 Re7 Ra5 Ree8 Nh4 Ke1 Kf3 Ne3 Rh8 Nef5 Rh7 Nd6 Ke3 Kf1 Nf3 Bb3 Bc3 a1R Bb2 Ra3 Ba1 Rf4 Kd3 Ndf5 Rh8 Rd4+ Kc3 Ba2+ Kb2 Ke2 Rh7 Rh5 Rh8 Rg5 R8h4 Rh5 Kc2 Rh6 Kb2 Bb3 Kc3 Ba2+
N7/P2b2Bn/P1p2Rq1/1KP2n1P/5N2/1Rb1rQq1/n1qkP3/Nn2RB1n w - - 0 1 illegal: No possible last move, all moves rejected
2NN1k2/1qQR2pP/2q2BPn/2b4B/Krb2B1P/3bR1Pq/1r1q1P1r/5N2 w - - 0 1 illegal: Other
bQb5/4qpP1/1nbB1k2/2bP1P1P/2B2R1K/1Nq1P1nn/r1B4R/1NNq4 w - - 0 1 illegal: No proof kernel
1b2Kn2/bN1N4/1PPN2b1/q2kP3/1r2p2R/4P2r/qrBP1RrB/1Q2B2b w - - 0 1 illegal: No proof kernel
1Q6/N4N1b/n1p1n2P/n1P1nP2/2r1PR1r/3q1Brr/P2Rq1Bk/1NB1K3 w - - 0 1 illegal: No possible last move, all moves rejected
qn3B2/1kr1KP1B/4PR1N/1PbP1B2/3p2bn/2R2P2/1N1pnr1b/1Qr1R3 w - - 0 1 illegal: No possible last move
1N6/R1N4R/r2P1P1P/rbK2Pkp/1B1rp1q1/1qnPn2B/1b2B2N/3Qn3 w - - 0 1 illegal: No proof kernel
2B1k3/n3Bb2/r2ppR2/b1P2NKP/1P3Pnr/q1qPRQ2/1R2Brq1/5N2 w - - 0 1 legal: proof: e4 b5 g4 f5 exf5 h5 b3 hxg4 a3 b4 axb4 c5 Ke2 c4 bxc4 Rh7 Ke1 Rh8 Ke2 g5 Ke3 a5 h4 a4 f3 d6 f6 a3 c5 g3 c4 g2 c6 a2 c7 g4 Kf4 g3 d3 Nc6 c5 Nh6 Ne2 g1Q Kg5 g2 Ng3 Be6 c8B Na7 Rh3 Bf7 Nd2 e6 Nf5 Ng4 Be2 Qa5 Rb1 a1Q Nf1 Q5a3 Rb2 Be7 f4 Qh1 Re3 g1R Bd2 Qb7 Bc3 Bd8 Bd4 Qg2 h5 Ba5 Bc3 Rh1 Be1 Rh6 Bh4 Qc1 Qb3 Qc3 Qd5 Nc6 Qf3 Ra6 Bg3 Na7 Bh4 Bg6 Re4 Rh8 Re3 Rg8 f7+ Kd8 Bg3 Rh4 f8R+ Be8+ Ng7 Ke7 Rf6 Bg6 Nf5+ Ke8 Be1 Bf7+ Rg6 Qc4 Bc3 Qcb3 Bf6 Qc3 Be7 Qg1 Ra2 Ne5+ Kh6 Qh1 Rf6 Rg2 Rb2 Rf2 Kg5 Ng4 Re4 Qh2 Re3 Qg2
1BR4N/3B3p/B1n1RqrP/R1q2P1K/2b1Q2r/b2PPP2/Nk1rb1p1/3n4 w - - 0 1 legal: proof: g4 e5 b4 f5 gxf5 a5 Nf3 axb4 Ng1 d5 Bb2 d4 Bc1 d3 cxd3 e4 Na3 e3 dxe3 Ra7 Nb1 Ra8 a4 Kd7 h4 Kc6 e4 Kc5 a5 Kd4 h5 c5 h6 b5 a6 g5 a7 g4 Ra2 c4 Qb3 g3 Qa4 g2 Nh3 c3 Rc2 Ne7 Bf4 Nd5 Ng5 Nc6 Nf7 Ne3 Bb8 Qf6 Rh5 Rg8 Nh8 Nd1 Rg5 Rg6 e3+ Kc5 Ke2 b3 Kf3 b2 Kg4 b4 Kh4 b3 Be2 Ba6 e5 Bc4 e6 Bd6 Rc1 c2 Nc3 b1B e7 b2 e8B Bba2 f3 b1R Kh5 Bab3 Na2 Rb2 Bd7 Bf8 Ra1 c1Q Bc8 Bd6 Ba6 Rd2 Rg4 Be7 Re4 Qcc3 Re6 Qa5 Bf4 Rb8 a8R Rb4 Rc8 Qc7 Bb7 Qd6 Qa8 Kb5 Bg3 Qc5 Ba6+ Ka4 Bb8 Ka3 Qb7 Kb2 Qa8 Na7 Qd5 Nc6 Qe4 Nc3 Bd1 Ra4 Bc2 Bf8 Bb1 Bd1 Bc2 Rb4 Ba4 Be2 B4b5 Bd6 Nc1 Nd1 Ra5 Ra4 Na2 Qd5 Nf7 Ba3 Nh8 Rb4 Ba4 Qc5 B4b5 Ne5 Be8 Nc6 Bd7 Bb5 Qg4 Re4 Qf4 Bc4 Qe5+ Rd4 Qd5 Rdg4 Qe4 Rh4+
n4b2/1PP3QN/1p2PB1R/1n1p1BN1/k1b1N1n1/P2qqr2/2r2Pb1/1RK2R2 w - - 0 1 illegal: No proof kernel
4k1N1/b2N3n/2n2Kb1/1PprP1P1/q2rPQ1b/1R2B1Bb/PpB2R2/1r1R4 w - - 0 1 illegal: No proof kernel
r2Q1Nkn/1r1Pb1NR/4PBP1/P6N/2B2b2/p2p1R1P/3qB1n1/n4nKb w - - 0 1 illegal: No proof kernel
2BbnQ1R/P5b1/1pBB2P1/4r2R/p2P2PK/2R1rb1N/rn2rP2/k2Nq3 w - - 0 1 illegal: No proof kernel
kbBr2B1/pnP5/npn1R2K/1P4N1/b2PN1P1/P3N1r1/1q1n4/R2Q1rR1 w - - 0 1 legal: proof: e4 c5 h4 f5 b4 g5 hxg5 d5 b5 d4 Ba3 d3 Bb4 cxb4 Qg4 Qa5 exf5 Qc7 Qd4 Kf7 Qxd3 Qa5 Qd7 Qd8 Ke2 h5 Ke3 b3 Kf4 h4 c4 h3 c5 b6 c6 h2 f6 b2 a3 Na6 Ne2 Rh3 Nbc3 b1N Ne4 Rg3 Rg1 h1R Nd4 Qe8 d3 Nd2 Nc2 Bb7 f3 Rd8 Ne3 Bh6 Qd4 Ke6 f7 Qd7 Qa4 Qd4 f8R Qb2 d4 Bg7 g6 Bf6 Nc5+ Kd6 g7 Kc7 Ne4 Kb8 Re8 Ka8 Qd1 e5+ Kf5 Be7 f4 Bd6 Re6 Bb8 c7 Ne7+ Kf6 Bc8 g8B Nc6 f5 Bd7 Be2 Be8 Bg4 Bf7 Kg5 Bg6 Nd6 e4 f6 Bf5 f7 Bh7 Nd5 e3 f8N e2 Ne3 Bc2 Nh7 e1N Ne4 Ba4 Kg6 Nd3 Nhg5 Ndc5 Bf5 Rf3 g4 Rhh3 Kg7 Rhg3 Kh6 Rf1 Rg6 Nc4 Bc8 Nd2 Re6 Nb7
4Nk1n/1BQ1rq2/1BR2P2/7n/n1nPp1K1/P2P2p1/NB3bP1/2r1bRRq w - - 0 1 legal: proof: e4 d5 b4 a5 h3 axb4 c3 f5 Ba6 g5 Bf1 d4 cxd4 g4 Ne2 g3 Ng1 Be6 exf5 Bf7 Ba6 Bh5 Bf1 Bg4 hxg4 Qd6 Ba6 Qd5 Bf1 Qd8 Ke2 c5 Kf3 h5 a3 e5 f6 b5 g5 c4 g6 b3 g7 b2 d3 e4+ Kf4 h4 f3 h3 Qc2 b4 Qb3 c3 Qc4 h2 Qb5+ Qd7 Qc4 b3 Nh3 c2 Qc7 Nh6 g8R Nf7 Nc3 b1N Na2 b2 Rg6 Nc3 Nf2 b1N Be2 Nd2 Rg1 h1Q Ng4 Rh7 Bb2 Nc4 Raf1 Nh8 f7+ Ke7 Rb6 Na4 Nf6 Ra5 Rd6 Rc5 Ne8 Rc6 Kg5 c1B+ f4 Be3 Bg4 Bf2 f5 Rc5 Bh3 Bh6+ Kh5 Bd2+ Kg4 Bde1 f8B+ Kf7 Rb6 Kg8 Re6 Qf7 Rc6 Nd7 Be7 Rg7+ Bg5 Rh7 Bh4 Kf8 Bd8 Ndb6 f6 Nd5 Qa5 Nf4 Bb6 Nh5 Qa7 Rd5 Qc7 Rd7 Kg5 Re7 Bc8 Nf4 Ba6 Rh4 Kf5 Nh5 Bb7 Rf4+ Kg5 Rf5+ Kg4 Rb5 Bc1 Rb1 Bb2 Rc1
3rNN2/2R1P1PB/1b2b1n1/1N1k2P1/Pq2n2p/Q4rq1/p5Pq/1RRKBq2 w - - 0 1 illegal: No proof kernel
2Q3B1/k2PnPP1/2R4r/1qq5/2P1Nbrn/BRp4B/1pPNK1rr/N1r5 w - - 0 1 illegal: No possible last move, all moves rejected
1b1n3B/Q6b/RNB1Pb2/b3pNPb/5r2/rN1q1PP1/p2RPK2/Bk5q w - - 0 1 illegal: No proof kernel
q6R/2NQ2BP/P2nBp1K/2RB1P2/8/k1P2Npr/rNP1nnrn/2b1q3 w - - 0 1 illegal: No possible last move
2n4R/B3p1k1/2p1P3/Q7/b2PP1qq/1RP1rNrb/qN1PBrNr/5RK1 w - - 0 2 illegal: No proof kernel
2n5/1K5B/1R2R2N/k1q1qPPq/3RN2Q/1P1pqr2/bbPP2pB/Nn5n w - - 0 1 illegal: No proof kernel
Kq1b2R1/5r2/bPr2pP1/1P2p2k/N4B1N/n1P1PRB1/bbBR4/3qQ2r w - - 0 1 legal: proof: g4 b5 d4 h5 a4 g5 axb5 c5 f3 cxd4 gxh5 Nc6 f4 g4 Be3 Ne5 Bc1 Nf3+ Kf2 Ng5 fxg5 Ba6 Ke1 Bc8 Kd2 e5 Kd3 d5 h4 a5 b4 a4 h6 a3 h5 g3 b6 g2 b5 f6 h7 Kf7 h6 Kg6 Rh3 a2 Rf3 Ba6 Bf4 Rc8 e3 Rc6 Bg3 Qb8 Nc3 Kh5 g6 Ne7 Qe1 Nf5 Rd1 a1B Na4 Bb2 c3 Be7 Rd2 Rf8 h8R Bd8 h7 Rf7 Rg8 Nd6 h8B Nc4 Bg7 Na3 Bf8 Qb7 Bh6 Qb8 Nh3 g1R Bhf4 Rh1 Ng5 Kh6 Be2 Kh5 Bd1 Nc4 Kc2 d3+ Kb3 d4 Kb4 Na3 Ka5 Kh6 Rg2 d2 Bc2 d1Q Rd2 d3 Rff2 Rh4 Nf3+ Kh5 Rf1 Rh3 Nh4 Rh1 Rf3 Qb1 Rh2 d2 Re2 d1B Rd2 Bc8 Rff2 Bdg4 Rf3 Bce6 Ka6 Qd1 Rd6 Ba2 Rd5 Qd6 Rd2 Bd7 Ka7 Bc8+ Ka8 Ba6 Bd3 Qc7 Bc2 Qb8+
1N2qb2/1b2pp2/P4R2/P1N5/1k2brQP/bN2P1PR/4BK1B/Rqnqr3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 h4 Na3 h3 Nb1 hxg2 Qa4+ Nc6 Qc2 g5 Qd1 g4 Ba3 g3 Bc1 Nd4 Qc2 Nf5 Nf3 g1B Qb3 g2 Qd1 Ng3 fxg3 Bh6 Ng5 Bg7 Nf3 Bf8 a4 Kd7 d4 Kd6 h3 c5 a6 b5 Na3 b4 Bd2 c4 Ne5 b3 Nd7 b2 Nb1 c3 Be3 c2 Nc5 c1Q Nd2 b1B Ndb3 Nf6 h4 Rh5 Rh3 Re5 Bf2 Nh5 a5 Rb8 Be3 Qe8 Bf2 Rb4 Be3 Bh2 Bg1 Be4 Kf2 Qc2 Ra3 Bb7 Ra1 Kc7 d6+ Kc6 d7 Kb5 d8N Bf3 d5 Qb1 d6 Rf4 d7 Kb4 Nde6 Re3 d8R Ree4 Nd7 Re3 Ke1 Re5 Nec5 Re3 Bf2 g1Q Nb8 Qh1 Rd7 Bg1 Rd6 Re6 Bd4 Be3 Rc6 Bc1 Bg1 Ba3 Bh2 Re5 Kf2 Re3 Qd7 Re5 Bg2 Qhd1 Qc8 Rf6 Rd6 Nf4 Bf1 Re4 Qg4 Nd3+ Kg1 Rff4 Rf6 Nc1 Kf2 Re5 Ne6 Rg5 Nec5 Rd5 Kg1 Rd2 e3 Rf2 Ne4 Re2 Nec5 Re1 Kf2 Qg6 Bc4 Qb1 Be2 Bfe4+
NRB1Q1nn/3PBN1r/1r2p3/1RPPP1p1/1b5b/1R3bbP/1K2kN1r/1b6 w - - 0 1 illegal: No proof kernel
K4b2/rBb3P1/2q1kB1p/1Q2n2P/1rRr1p1P/1N1P1B2/1b3P2/2NbNR1r w - - 1 2 illegal: No possible last move, all moves rejected
1B2B1Rr/6r1/1P1Kqb2/1RP2ppp/PPQRN2P/rNn1B3/7b/nk4n1 w - - 0 1 illegal: No possible last move
R1qbB1r1/3P1NbP/B1k1Krp1/5p2/5BbP/2PR2P1/N2n2p1/2q1nQR1 w - - 0 1 illegal: No possible last move
r4k2/3pRp2/1B1P1K2/6PN/r2qb3/1nR1PRQP/BpqN2nP/r1B2q2 w - - 0 1 illegal: No proof kernel
k1b4Q/5N1n/1b3Rb1/1Np2qpK/2PBPB1P/P1rP2p1/B2Nn2n/1q4R1 w - - 0 1 illegal: No possible last move
4Kn2/rr1pP3/N3N1Rp/1B5P/1BpR2PP/2r3bn/nkP1Q3/qN3R1q w - - 1 2 legal: proof: a4 e5 d4 b5 axb5 exd4 h3 g5 f3 Bb7 h4 Bd5 Qd2 Be6 Qd1 Bh3 gxh3 g4 fxg4 Bd6 Qd2 Be7 Qd1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kb4 e4 c5 e5 a5 b3 c4 h5 a4 h4 h6 b6 d3 e6 a3 b7 a2 Nh3 d2 Nf4 Na6 b8N Bd6 e7 Nf6 Qe2 d1N Qh2 Nf2 Ne6 Nh3 Qe2 Ra7 Bg2 Nh7 Rd1 Nf8 Kf6 Bg3 Rd4 Qa5 Kg7 f5 Kf7 f4 Bc6 f3 Bb5 f2 Ke8 f1R Be3 Rf3 Bd2+ Rc3 Be1 Qa3 Bd2 Qc1 Be1 Nc5 Na6+ Ka5 Bd2 Qh1 Be1 Na4 b4+ Kb6 Bc6 Rb7 b5 Ka5 b6 Ra7 b7 Rg8 Nac5 Kb4 Bb5 Rg6 b8R Rf6 Ng7 Rb6 Nge6 Rbb7 Rc8 Bf2 Rc6 Bg3 Nd2 Ka3 Na6 Kb2 Nb1 Rd3 Bb4 Nc3 Nd2 Rf3 Rf1 a1Q Nb1 Re3 Ng7 Na2 Rg6 Rb3 Ne6 Rc3
b1q2rN1/qP3p2/1r5b/NpRQ1BbP/5P2/Rn1r3P/1P1B2p1/1k2NRK1 w - - 1 2 legal: proof: g4 e5 d4 b5 a4 d5 a5 h5 gxh5 Nd7 c4 exd4 cxd5 Nb6 axb6 Rh6 Qa4 Rh7 Qd1 Rh8 e4 Kd7 f3 Kd6 Kf2 Ke5 d6 g5 d7 a5 h3 c5 Qd2 g4 Ne2 d3 Rh2 c4 Nf4 Kd4 e5 g3+ Kg2 c3 e6 a4 e7 c2 e8R a3 Nd5 a2 Qe1 d2 Ne7 d1R Bd2 c1B Qe6 Nf6 Rh1 Bb7 Kg1 g2 Na3 Qc8 d8N Ra6 Ng8 Ba8 Nb7 Ne4 Na5 Bh6 b7 Nc5 Rf8 Nb3 Nc2+ Kc5 Rd8 Rb6 Ne1 Bg5 Re8 Kd4 Bd3 Bh6 Bf5 Bg5 Bb4 Rd3 Bd2 Bh6 Qc6 Bg5 Re5 Bh6 Rb1 a1Q Rc5 Qa4 Ra1 Qa3 Nf6 Rf8 Ng8 Qa4 Ra3 Bg5 Nc4 Qa7 Na5 Bh6 Bb4 Bcg5 f4 Ke3 Bd2+ Ke2 Qd5 Kd1 Bc3 Kc1 Bd2+ Kb1 Kh2 Rd8 Rf1 Re8 Kg1 Rf8
1q6/1k2BN2/3pqnr1/b1P1Q2P/RB3PRq/1NnKpn1b/2BPp1PN/8 w - - 0 1 illegal: No proof kernel
1bk3K1/p3RB2/rr3NnQ/R4P2/P2n1BbR/N1p5/1PP1Bp1P/1b2r1n1 w - - 0 2 illegal: No proof kernel
3b1k1B/1bb1p1n1/2qp2Qb/P2P1n2/5NRB/5KpP/1P1RB1P1/br2NR2 w - - 1 2 illegal: No proof kernel
B3r2q/1P2b3/N5p1/KPp2R2/nbNP1B1k/1P1B4/1bP1b1pN/2b1n1QR w - - 0 1 illegal: Other
1N4R1/pq1pr3/K3pBbR/PRN1r1nQ/n3B3/3P2Nn/nPP3Pr/4k3 w - - 1 2 illegal: No proof kernel
q6r/N1k3P1/p7/1BpQ4/1RnpnP2/Pb3RP1/r1P1nRNr/4nNBK w - - 0 2 illegal: No possible last move, all moves rejected
3n2b1/1P2P1RK/2p1ppN1/1kbP2R1/b2qqR2/1nP2PQ1/B1N5/Bqn4B w - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 a5 d5 f6 d6 e6 Bf4 Ra6 Bc1 Rb6 e4 h5 Qd4 Rh7 Qd2 Re7 dxe7 d5 Rh2 d4 Qd1 Rd6 Rh1 Rd5 exd5 Kd7 Ke2 h3 Kf3 c6 g4 h2 b4 d3 g5 d2 c3 h4 Kg4 a4 Kh5 a3 Kg6 a2 b6 h3 f3 Bg7 b7 Qb6 b5 Qd4 b6 Na6 b8R Kd6 b7 Kc5 Ne2 Kb5 Bg2 Nh6 Qg1 d1B Nf4 Nb4 Bb2 Ba4 Kh7 Bd7 g6 Nf7 Rg8 Bh6 g7 Be8 Ng6 Be3 Qf2 Nd8 Qg3 Nd3 Rg1 Bf2 Bh1 Nc1 Rg2 Bf7 Na3+ Ka5 Nc2 Kb5 Rb1 a1N Rg1 Nab3 Ba1 Qe4 Rg2 Bc5 Rg1 Ne2 Rbd1 Nec1 Rd4 Qf5 Rf4 Qe4 Re1 Qd4 Re5 Qe4 Rg5 Qd4 Rf8 Qe4 g8B Qd4 Bg2 h1Q Re8 Qe1 Bh1 h2 Rf8 Be8 Rf7 Qee3 Rg7 Bf7 Ne5 Be8 Bf7 Qee4+ Bg6 Bf7 Ne1 Qee3 Bb1 Qee4+ Ng6 Na2 Bg2 Nac1 Ba2 h1Q+ Bh3 Ne2 Nc2 Qb1 Bg2 Nec1 Bh1 Bg8+
5bbK/N2q1Bp1/1n4N1/1p4P1/2Rp1BqP/3kPq2/1PRPn1n1/B1QnR3 w - - 0 3 illegal: Other
RQ1n4/1p2Br2/1P1p3B/NPp1nR1b/P2rp3/K4NPP/2q2bRB/5q1k w - - 0 1 illegal: No proof kernel
KR6/2nbQ1p1/RP4N1/N2p3N/5BnP/PPpp1rP1/4B3/rn1Bqr1k w - - 0 1 illegal: No proof kernel
1r3n1B/1pb2p1k/1pr1R2P/3RB2R/2KPrp2/N1P2P2/2B1NPq1/q5Qb w - - 0 1 illegal: Other
2nKr2b/N7/k5p1/n1b3P1/N1PPR1B1/1BrQ1p1R/RPp2P1p/bb2N3 w - - 1 2 illegal: No proof kernel
B3NQ2/3Kr2r/1R1R1P1P/3pkbb1/8/p1pP1Pq1/1qPBb1pB/1N2R1r1 w - - 0 1 illegal: No possible last move, all moves rejected
2kbK1q1/qppR3p/2b1P3/1N6/2PQnP1b/1PNrBpBR/B2p1P2/6N1 w - - 2 3 illegal: No proof kernel
1Nk5/pq1p1PKP/1p5p/PNrR1R2/r1pQ1n1B/bp3B2/bP3P2/5R1N w - - 1 2 illegal: Other
3N1BR1/2b5/rBqrB3/p1PnpPPK/2kq1nR1/2N1PQ2/P6R/bbn4r w - - 0 1 illegal: No proof kernel
3n4/2nN1Ppn/bP2QB1r/2nbPqP1/p3r2k/P3BR1N/1b2Bn2/5RKR w - - 0 1 illegal: No proof kernel
4bR2/pRnP3N/PN2P3/rBk1r1p1/r3nb2/6P1/nbPRN3/Bb2qK1Q w - - 0 1 illegal: No possible last move, all moves rejected
k1rBBnn1/5N2/1Q1p1nbP/1K1PBp2/N1P4P/2b1R1Nr/2qr1PR1/b4b2 w - - 0 1 illegal: No proof kernel
1BK1k1B1/3np1rb/r1pPQ3/r3P3/nRPb4/b1rn2R1/1PRPqNB1/4N3 w - - 0 1 illegal: No proof kernel forced: bxDB
1kq1b3/n2b2q1/2Bp4/3RPrB1/pN1P1nK1/P1rRbbP1/1P1QN3/3N2Rb w - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 b5 cxb5 Ba6 Rh2 Bb7 Rh1 Bc8 Kf2 a5 Kf3 c5 d4 h5 e4 f5 e5 d6 g3 Kd7 a3 Kc7 g6 h4 g7 a4 Rh3 c4 Qe2 c3 Qd2 c2 Qd1 Bd7 Rh2 h3 Be3 c1Q Nd2 Qg5 Bc4 Rh5 Re2 h2 Qe1 h1B+ Rg2 Nc6 b6+ Kb8 b7 Na7 Qf1 Ne7 g8R Qg7 Ne4 Nd5 Bb5 Qc8 Qf2 Be7 Re8 Bg5 Qd2 Bh6 Ne2 Rg5 Kf2 f3 Bc6 f4 Rgg1 Rf5 N4c3 Bg5 Nd1 Bh6 Kf1 f2 Rf8 Bg5 Rc1 Be8 Rc5 Bh6 Nc1 Bg5 Ke2 f1B+ Kf2 f3 Ne2 Nf4 Rd5 Bh3 Rf7 Rf6 Rf8 Bhd7 Rf7 Bh6 Rf8 Rf5 Rf6 Nh5 Bg5 Nf4 Ke3 f2 Rf7 Kc7 b8N f1B Rf6 Bfg2 Na6+ Kb6 Nb4 Kc7 Re6 Bf3 Rg6 Rf8 Rf6 Kb8 Rf7 Nh3 Rf4 Rf5 Re4 Nf4 Kf2 Nb5 Re3 Ra6 Rb3 Na7 Rd3 Ra5 Ke3 Rc5 Nc1 Rc3 Be7 Bfh5 Ne2 Ng2+ Ke4 Be3 Bh4 Rf6 Bg5 Nf4+ Rg2 Re6 Kf5 Bf3 Rg1 Qe7 Bh6 Rf6+ Kg5 Qg7+ Kh4 Be4 Bg5 Rf5 Kg4 Bef3+
1n3rb1/2B1q1BK/1P1p4/3rnP1k/NrNPR2r/1p3RQ1/PPB2N2/b3q2b w - - 0 1 illegal: Other
n1N4K/N3r1bb/3Q4/p4q1q/Bp1nBPn1/PRN2R1P/1PPb4/2B1k1br w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 d4 c5 dxc5 Qb6 Bd3 Qc7 Bf1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Ke4 a5 f4 g5 c6 d5+ Ke3 b5 a3 e4 Kd4 e3 c7 b4 Qd3 e2 Qc3 e1B Qc5 g3 Qc3 g2 Qd2 g4 Qc3 g3 Qe3 Qd7 Qe8 Ra7 Nc3 Nh6 Nb5 Na6 Bd3 Ng4 Be4 Bd2 Ne2 g1N Nec3 Bg7 Qf8+ Qf7 Rb1 g2 Qd6+ Be6 c8B Re7 Bb7 Nc7 Bc6 Na8 Na7 Rh5 Ba4 Nf3+ Kd3 d4 h3 Rg5 Re1 g1B Re3 Qg6 Qc5 Bg8 Qd6+ Re6 Kc4 d3 Kd5 Nd4 Rg3 Bh7 Rf3 Kf7 Rg3 Re7 Rf3 Be5 f6 Qf5 Rg3 Kg6 f7+ Kh5 f8N Kh4 Nd7 Rgg7 Nb6 Rg8 Nbc8 Rg5 Re3 Rg8 Bf3 Kg3 Be4+ Kf2 Qh6 Nh2 Ne2 Be1 Qd6 d2 Rb3 d1Q Bd2 Rg2 Nc3 Qe2 Rd1 Qf3 Bc1 Q3h5 Rd3 Bd2 Rf3+ Ke1 Qa6 Bh8+ Kd6 Re6+ Kd7 Ng4 Qd6 Rh2 Kd8 Rg6 Ke7 Rh1 Ke8 Bf6 Kf8 Rg7 Bb7 Bg6 Be4 Re7 Kg8 Be5 Nd1 Bg7 Nc3 Bh6 Kh8 Bh7 Qc5 Bf8 Qd6 Bg7#
6NN/1br1r1r1/n1pRn3/1P5R/B2PK1p1/PQ1N2P1/1bP2Brq/qB3k1n w - - 0 1 illegal: No proof kernel
Rn1B2n1/PN2p1Np/B3Pk1r/2n1r2P/1Q4P1/q4NnR/rbR4P/3K2rb w - - 0 1 illegal: No proof kernel
Bn4nq/bP1b1PQ1/p5N1/r3p2p/P1N1rb1P/1rP1N2K/1R5R/k1n1B2B w - - 0 1 illegal: No proof kernel
BBNRr3/rPppRb1q/n4bNr/1QN4p/2P1n1k1/K6b/PnPR3P/8 w - - 0 1 illegal: No proof kernel
2B2Bb1/QR2b1pN/3r2PN/P1r1NP1p/1qP4n/KBb1p1k1/3qP3/4nr1R w - - 0 1 illegal: No proof kernel
2b1Br2/1NnQp2N/4rb2/1N2Pn2/B1p1kqbB/1R2P1p1/RPPK2Pq/3r4 w - - 0 3 illegal: No proof kernel
nnq1N1R1/3bP2B/q3k3/B1R2pr1/b1p3p1/P1BPK1P1/n2R1PN1/2bQr3 w - - 0 1 illegal: No proof kernel
1b2k1r1/3np1R1/P1Kq1B1Q/2P1Pq2/2p1n1R1/2NrN2N/p1Pn2Pr/2BB3b w - - 0 1 illegal: No proof kernel
N5n1/bk1p1N2/2q2RBB/4r1pb/4p1Pb/P1nP2P1/r2N1Pq1/1rQKR2R w - - 0 1 illegal: No proof kernel
2bBn2K/rp1N2Pq/RR6/P2NR2P/p4Qnp/PP3nrk/B2b1q2/2B1b3 w - - 0 1 illegal: No proof kernel
8/qk2PBN1/p2rP3/npQ1rR2/1P2r3/1Pb1Rn1K/P2B1r1p/2rbNN1R w - - 0 1 illegal: No proof kernel
5b2/Q1p1PNBp/2nn1Bk1/P5PR/1n2p1K1/1rb1P1qP/B2b1N2/2Nr2Rb w - - 0 1 illegal: No proof kernel
2Bkrrbn/1pp2rqp/2B1K3/3P2NR/R1P1P3/BPN1b1n1/2R3Pr/2b4Q w - - 0 1 illegal: No possible last move
r1BQ2nK/qR1P4/q2R1B1P/1qprpb2/q1P1n2p/2N3BP/2k1P1b1/5NN1 w - - 1 3 illegal: No proof kernel
4q1rK/1b1N4/4QBk1/1Bpb2Bp/RrP4p/N2nP1p1/P2R2PP/nn2R2b w - - 2 3 illegal: Other
1rRn2Br/N3Q1B1/Pnn1qR2/2N1Rp2/7p/kbP1pP2/2p1PN1P/3Kbr2 w - - 0 3 illegal: No possible last move, all moves rejected
1rqr4/P3Q3/2P1n2k/N2N1B1p/1pnp2Kb/1n3p1R/PP1PB3/1bbRB1R1 w - - 0 1 illegal: Other
B1R1r1k1/1Nb3nr/4p1pB/3nPP1R/P1q3B1/2n1R1r1/bP1p1QPp/1NK5 w - - 0 1 illegal: No possible last move, all moves rejected
kbrb1RBK/1b1n1p2/2pp2Pq/1NQR1P1q/1B3p2/P3RP1N/2P5/1B1r2n1 w - - 1 2 illegal: No possible last move, all moves rejected
bB2kb1K/1R5N/p2bpR1p/1PR2NnP/P4r2/1PQ1PB1r/qp2qN2/7n w - - 2 3 illegal: No proof kernel
3BB1r1/ppqb4/2pR3N/Kr1p1Pnn/1PB2N2/P3Nn2/P1qPbR1Q/2k5 w - - 2 3 illegal: No proof kernel
K4n1b/P1r3B1/ppNQB3/Pn1p1Pk1/1NBR2q1/n5p1/b1P3Pp/1Nr4R w - - 0 1 illegal: No proof kernel
1NK4b/1R2B1rp/p1r1P2p/3kP1Rb/Pp1r1p1P/QP1n2n1/3BN3/2q1NR2 w - - 1 3 illegal: Other
rq5Q/pbP1K1p1/rk3ppB/6PN/b1pN4/1P3P1R/1nP2n1N/1n2RB1B w - - 2 3 illegal: No proof kernel
1Rr4B/Q1pn2B1/3Rp1kp/5p2/2N2pnP/2Pb1Pp1/NPq1P3/1BRbr2K w - - 1 6 illegal: Other
3Kn2B/qN2N2p/Br1p1RpB/1NPP1pP1/5PkP/n2bQ1b1/1R3q2/n2r2b1 w - - 0 1 illegal: No proof kernel
2N2B1r/R3nN1k/b1Bp4/1Rbn1pPp/2NQpp1b/2BPq1b1/r3PP1P/6K1 w - - 0 1 illegal: No proof kernel
1RB2qn1/Rn1qP1QK/P3Nrn1/P1r5/2b5/3b1n1k/B3P2P/NBn4Q w - - 0 1 legal: proof: f4 a5 d4 f5 b4 c5 dxc5 e5 bxa5 h6 g3 Be7 Be3 Bg5 fxe5 f4 Bd2 f3 Bc1 Be3 Bd2 Bd4 Bf4 Be3 Bg5 Bf4 gxf4 hxg5 Kf2 Kf7 Kg3 Kg6 Kg4 d5+ e6 b5 c4 f2 a4 d4 c6 d3 a6 b4 c5 d2 c7 b3 c6 b2 a5 Qf8 Ra2 Nd7 e7 Nc5+ Kg3 Kh5 f5 g4 Kf4 Kh4 f6 g5+ Ke5 g3 f7 g2 Nf3+ Kh3 Nd4 g4 Ne6 g3 Kf5 Rh5+ Kg6 Nb7 Na3 b1B+ Rc2 Rc5 Kh7 Ba2 Rc1 Bc4 Nc2 Rb8 Qe1 d1Q Na1 Bd7 c8B Qd2 c7 Bdb5 Qd1 Qd7 Qd5 Bd3+ Qe4 Bbc4 Rb1 Nd8 Rg1 Rb6 Rb4 Rbc6 Rb7 Rd6 Ra7 Nb7 Ng7 Rf6 Ne6 Qfe8 f8Q Qed8 Qf7 Qf8 Nf4+ Kg4 Rh1 g1N Bg2 Nf3 Rb1 Ne5 Qg7+ Ng6 Bh3+ Kh4 Bf5 f1N Qh1 g2 Ne6 g1N Rb3 Nf3 Rb6 Nd8 Rb8 N1d2 Bb7 Nb3 c8B Nc1 Bd5 Nb7 Bfe4 Bb5 Ba2 Bdc4 Beb1 Kh3 Qe1 Bd3 Qh1 Bbc4
4q3/rPN2brP/1rPNRnQ1/1B2r3/2R3b1/2K1P1PQ/1b5r/B3Qbk1 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 Kd2 h5 gxh5 g5 Ke1 g4 Bh3 g3 Nc3 Na6 Bf1 g2 Nb1 Nc5 Bd2 Ne4 Bc1 Ng3 hxg3 Be7 Bd2 Bc5 Bc1 Bf8 Kd2 Ke7 b4 Ke6 c4 Kf5 h6 Kg4 c5 d5 c6 a5 e6 f5 b6 d3 b5 f4 e3+ f3 b7 d4 b8Q a4 e7 a3 e8Q a2 b6 Ra5 b7 Nf6 Qf7 Ba3 Qe5 Bb2 Qee8 Re5 Na3 Be6 Qee7 Qe8 Qh7 Bf7 Qe1 f2 Nh3 Kf3 Nc4 g1R Nf4 Rg2 Qg6 Rh2 h7 Rg8 Ne6 Rg7 Rb1 a1R Nd6 Ra7 Be2+ Kg2 Qd7 f1B Nc7 Ba1 Rb4 Bb2 Kd1 d2 Kc2 d1R Bb5 Rd3 Rc4 Rb3 Bd2 Rb4 Bc3 d3+ Kd2 Rh3 Rh2+ Kg1 Rf2 Rh2 Qh3 Rba4 Bd4 R4a6 Bc3 Rb6 Bd4 Bc1+ Kc3 d2 Rf4 d1B Re4 Rg5 Re6 Bg4 Kb4 Re5 Ba1 Ba3+ Kc3 Bb2+
2R1Nkq1/2B5/3r2r1/1PB1n1Pq/1K2q1P1/PP3r2/Br1NQ1qR/Q4rn1 w - - 0 1 illegal: No proof kernel
R2q3N/PrBK2Q1/6np/1P1n3k/1bQB1P1P/b3Q1R1/3qqr1P/5nN1 w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 a4 Qb3 Bd7 Qb6 Bb5 Qa7 b6 Qb7 Be2 b3 Bg4 Ba6 Bh3 gxh3 Qd6 Bc4 Qd8 b4 b5 Bb3 axb3 Qxb5+ Nc6 Qb7 Nb8 Ke2 Kf7 Ke3 g5 Kd4 c5+ Ke5 h6 a4 b2 d4 c4 f4 g4 f6 Kg6 Ke6 g3 b5 c3 f7 c2 a5 g2 d6 Ra6 h4 Qc7 d5 Kh5 Nd2 b1N Qc6 Qd8 d7 Nf6 d6 Nd5 Ne4 Rh7 Ng5 Nd2 Bb2 c1Q Qc4 Nf1 Bd4 Nc6 Ra4 Ra8 a6 Qd2 Ra3 Ne5 Rg3 Qb8 d8Q Ng6 Qdc7 Qd8 d7 Rc8 Qb6 Qe2+ Kf5 e5 Ke6 Bb4 f8Q e4 Nf7 e3 Qg7 Qd2 a7 e2 Nh8 e1B Qbc5 Ba3 Qce7 Rc5 Kd6 Qe2 Qe3 Beb4 Ke6 Qb8 d8B Qd2 Qf6 Rb7 Bc7 Qf8 Qg7 Qd8 Qcd3 Rc2 Qc4 Qg5 Nh3 g1Q Kd7 Qgg2 Rg1 Qf3 R1g2 Qf6 Ng1 Qfe2 Bc3 Qf3 Re2 Qf8 Bd4 Qd3 Qe8 Qfe3 Re1 Rf2 Qe4 Qdd2 Qed3 Qf3 Re8 Qf6 Qe3 Qfe2 Ra8 Qd8+
3qNn2/1Pq2n1P/2b1rP2/B1k3r1/3N4/3Q2nP/1P1KB1pR/n2QBb1R w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 g4 Ba6 gxh5 Bc8 f4 exf4 e3 f3 Kf2 Qf6 Ke1 f2+ Ke2 Qd8 Kd3 f5 Ra5 f4 Kc2 f3 Ra3 Bd6 Ra1 Bf4 exf4 Qd7 Ne2 Qe7 Ng1 Qd8 d4 Ke7 h3 Kd6 h6 c5 b6 a5 b7 g5 h7 a4 f5 a3 f6 a2 Qd2 g4 Kc3 c4 Qd1 g3 Be2 f1N Bd2 g2 Rh2 f2 Be1 Ra5 Na3 Nd7 Nf3 Ng3 Kd2 f1B Rc1 Nf8 Nb5+ Kd7 d6 Kc6 d7 a1N d5+ Kc5 d6 Nh6 Rb1 Nf7 Nc7 Rb5 Ne8 c3+ Kc1 c2 Nd4 Rb6 Kd2 Rg8 Rc1 Rg5 Rb1 Qc7 d8B Bd7 Rc1 Bb5 d7 Re6 Rb1 Qd6 Ba5 Bc6 d8Q c1Q+ Kd3 Qc4+ Kd2 Qe7 Qd7 Qd8 Rc1 Re7 Qf5+ Re5 Qd3 Re6 Qb1 Bd7 Qa4 Kd5 Bf2 Qcc7 Qd3 Bc6 Re1 Kc5 Qd1 Qdd7 Bf3 Be2 Reh1 Qcd8 Be1 Bf1 Be2 Q7c7
1q5r/p1n1N1Q1/K1R2P1P/nRB2Pr1/1B1b1Q1n/2PnqR1P/1k2b1N1/8 w - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 e4 d5 a4 f5 exf5 Nh6 dxc5 Ng8 axb5 d4 c3 d3 Bg2 Bd7 Bd5 Be6 Bb3 Bc8 Bc2 dxc2 Ke2 Kf7 f4 Kf6 b4 g5 h6 e5 c6 e4 h3 e3 b6 g4 b7 g3 c7 g2 b5 Qd4 b6 Qd7 Na3 Qe7 Kd3 e2 Kc4 e1Q Kb5 Qf2 Ne2 g1N Nc4 Qfe3 Ba3 c1N Qd4+ Q3e5+ Bc5 Qd8 Rb1 Ne7 Ng3 Nd3 Ne3 Nf3 Rhf1 Nec6 Ng2 Nh4 Rf3 Na6 b8B Na5 b7 Bg7 Rb3 Be6 c8R Qd6 Qg1 Qe3 Rc6 Qf8 Bc7 Qb8 B7d6 Bf7 Bb4 Bh5 Bdc5+ Kf7 Rb2 Bd4 f6 Kg6 Nf5 Nc7+ Ka4 Rg8 Ne7+ Kf7 Rb1 Rg5 Rb3 Ke8 f5 Kd7 Rf4 Be2 Rf3 Qc8 b8Q Qb7 Qh8 Rf8 Qf2 Qb8 Qg7 Rh8 Ng8+ Kc8 Ne7+ Kb7 Bb6 Ka6 Qg3 Bf1 Qf4 Be2 B6c5+ Qb6 Ka3 Kb5 Rb2 Kc4 Ka4 Ne5 Rb1 Kd3 Rb3 Kc2 Rb1 Nd3 Rb3 Ne6 Rb1 Qc7 Kb5 Qd8 Rb3 Qb8+ Ka6 Kc1 Bd6 Kc2 Bbc5 Kc1 Rb5 Kc2 Bb4 Kb2 Bdc5 Nc7+
8/k2KQ1Q1/2P3qP/1R1NBqb1/n1P1BB1p/rbbqP3/N6P/n1n2R2 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 f4 exf4 a4 c5 d4 b5 dxc5 h4 axb5 Rh5 gxh5 Ra6 Qd2 Rh6 Qd1 Rh8 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kf3 Kb7 b6 f5 c3 g5 h6 g4+ Kg2 d4 Be3 g3 Kf3 g2 Qe1 d3 Qc1 d2 Qa3 d1Q Qc1 Qe8 Qd2 Bg7 Qb2 Ne7 Bf2 Nbc6 Nh3 g1B Bg2 Be6 Bg3 Be3 Rf1 Bb3 c4 Qd3 Nc3 Nc8 Na2 Nb4 Rab1 Nc2 c6+ Ka6 b7 Ka7 a6 Bc3 Qa3 Nb6 Qe7 Na1 Qg7 Na4 b8B+ Kb6 a7 Qg6 Be5 Ra8 Ng5 Ka6 Ne4 Kb6 Nf6 Bc1+ Kf2 f3 Nd5+ Ka6 Qe7 Bg5 e3 f4 Qg7 Bd1 Rb5 Bb3 Kg1 f2+ Kh1 f3 Bgf4 Rb8 Qe7 Rb7 a8Q+ Ra7 Qg8 Qdf5 Qgg7 Qd3 Re1 f1N Kg1 Nd2 Rf1 f2+ Kh1 Qgf5 Be4 Qg6 Kg2 Ra8 Kh3 Ra7 Rg1 f1Q+ Kg4 Qfb1 Rf1 Ra8 Bc7 Ka7 Bfe5 Bc2 Bf4 Ndb3 Bfe5 Nc1 Bf4 Qh5+ Kf5 Bb3 Ke6 Qg6+ Kd7 Rf8 Bfe5 Rf2 Nb4 Ra2 Bf4 Ra3 Na2 Qbc2 Bce5 Qf2 Bg3 Qff7 Bgf4 Qff5+
2n5/PkBrPr1R/n1n2N1q/rp2QK2/P1NPB1R1/6R1/4qP1b/Q2q4 w - - 0 1 legal: proof: g4 d5 b4 h5 gxh5 a5 bxa5 f5 c3 d4 cxd4 Ra7 Nf3 Ra6 Ng1 Ra8 e4 fxe4 d3 e3 Ke2 Kf7 Ke1 e2 Kd2 Ke8 Nf3 e5 Kc3 e4 Ng1 e3 Kb3 Bf5 Kc2 Be4 dxe4 Qc8 Kb3 Qd7 Kc2 Qd8 Kd3 Kd7 h4 Kc6 a4 e1Q a6 g5 e5 b5 Ke4 e2 e6 g4 h6 g3 h7 g2 h5 Qh4+ Bf4 Bd6 h6 Ne7 Rh3 Rf8 h8Q Nc8 e7 Rf7 h7 Qh6 Nf3 g1N Nh2 Nf3 Bg2 Ne5 Nd2 Qf1 Re3 e1Q Ng4 Qfe2 Nc4 Q1d2 Qc1 Qdd1 Qg7 Ra7 h8R Ra8 Rh7 Ra7 Na3+ Kb6 Bh2 c5 Nf6 c4 Kf5 c3 Rg3 c2 Be4 Nec6 Nc4+ Kc7 Qb1 c1R Raa3 Rc3 Qa1 Rc2 Rg4 Bf4 Bg1 Bh2 Rag3 Rc1 Ne5 Kb6 Qh8 Rd7 a7 Na6 Nc4+ Kb7 Rf3 Bb8 Bh2 Rc2 Bc7 Rc3 Ba5 Bh2 Bc7 Rc2 Rfg3 Rc3 Bc2 Re3 Bb1 Re6 Be4 Nb8 Bd3 Ne5 Bc2 Rb6 Be4+ Nec6 Qg7 Ra6 Qg8 Rg7 Qe6 Ra5 Qd6 Na6 Qe5 Rf7
2bQq3/N2qq3/P5q1/R1Q1PB2/nPr1R3/1n1NP3/p2P2q1/1B1Kb1Bk w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 gxh4 c4 d5 cxd5 Bg4 Na3 Bh3 Nb1 Bc8 a3 b5 b3 b4 axb4 Qe7 Kf2 Qf6+ Ke1 Qd8 Nh3 a5 Ng1 a4 Rh3 a3 Rh1 Ra4 bxa4 Bb7 Nf3 Ba6 Ng1 Bc8 g4 Ke7 g5 f5 d6+ Ke6 g6 Kd5 a5 Ke4 a6 h5 g7 c5 d7 c4 e3 c3 Bc4 h3 Ke2 f4 Qb3 h4 Bf7 c2 Be6 h2 Ke1 a2 Na3 h3 Ke2 f3+ Ke1 f2+ Ke2 Qe7 d8Q Rh4 Qb1 Nc6 Nb5 Nf6 g8B Na5 Na7 Nb3 Nf3 Nd5 Ne1 Nb6 Rg1 h1Q Nd3 h2 Bb2 c1Q Qc2 Na4 Qc5 Qg2 Bh7+ Qg6 Bd4 h1Q Bg4 Qc4 Rac1 Qcf7 Kd1 Qg2 Bf5+ Kf3 Rh1 Rf4 Rh4 Qfe8 Rc4 Kg3 Rg4+ Kh2 Rc3 Nc1 Ra3 Kh1 Rh4+ Qh3 Rg4 Nb3 Rh4 Nb6 Ra5 Na4 Rg4 Rf3 Re4 Rf4 Qc1 Bh6 Bb6 Bg5 Qc5 Bh4 Bc7 Qhg2 Bd6 Q7d7 Be7 Bg3 Bh4 f1Q+ Ne1 Qfb5 Nd3 Be1 Bf2 Qde7 Bg1 Qbd7 Bg8 Nd4 Bb3 Rh4 Bc2 Nb3 Bb1 Rf4 Bh3 Rf6 Bf5 Rc6 Qb5 Rc2 Qc5 Rc4
1Qrr4/nN1P4/1p4KP/R7/bb1b2R1/2k2P1n/Pn3P1Q/B2BNrrB w - - 0 1 legal: proof: d4 d5 b4 a5 g4 axb4 c4 h5 gxh5 c5 Bf4 f5 Bc1 f4 cxd5 f3 exf3 c4 Bg5 Qa5 Bc1 Qc5 dxc5 Be6 Ne2 Bg4 Ng1 Bc8 Kd2 Kd7 Ke3 g5 Ke4 e5 Kf5 g4 h4 e4 c6+ Kd6+ Kg6 Kc5 c7 g3 d6 e3 h6 c3 h5 b6 h7 c2 h6 g2 Nc3 b3 Nh3 Kb4 Na4 g1R+ Bg2 e2 Bb2 c1B Nf4 e1N Rh5 Nd3 Nc5 Nf6 Nb7 Be3 Ra5 Bd7 c8B Ba4 Bf5 Nc6 d7 Nd5 Be4 Rf1 Bh1 Bd4 Ng2 Rc8 Ne1 Na7 Qc1 Bd6 Qc7 Rhd8 h8Q Bf8 Qh2 N5f4+ Kf5 Nh3 Kg6 Kc4 Q8e5 Be7 Qb8 Bb4 Bc3 Nb2 Bc2 Be3 Bh8 Bd4 Bd1 Kc3 Bg7 Nc4 Bf6 b2 Bg7 b1R Bf6 Rc1 Rb1 Bc5 Rb4 Nb2 Bh8 Be5 Re4 Bb4 Rg4 Bd4 Kf7 Rg1 Be5 Kd2 Nd3 Be3 Bb3 Rcf1 Bd1 Nc4 Ba1 Bd4 Ne1 Nb2 Kg6 Kc3
1B2q3/3K3Q/1N1Qr3/1PRnNP1r/2B3R1/r1qbPP1P/2Rpbn1p/k7 w - - 0 1 illegal: No proof kernel
2rRQN2/n1BP2P1/qqp2b2/QP2R3/1q1pP2r/n1b3B1/1PN3K1/1Bk5 w - - 0 1 legal: proof: c4 b5 e4 e5 h4 g5 a4 f5 axb5 d5 d3 gxh4 Nf3 d4 Ng1 Bb7 exf5 e4 Qb3 e3 Qd1 Be4 dxe4 Qd5 cxd5 Bd6 Rh3 Ba3 Rh1 Bf8 g4 Kd7 f4 Kd6 g5 Kc5 d6 Kb4 g6 h5 d7 a5 f6 e2 Kf2 e1B+ Kf3 h3 f5 h2 g7 h4 f7 a4 f6 h3 Ra2 a3 Qc2 Ne7 Qd3 Na6 Ra1 a2 Na3 Nc8 Qd2+ Kb3 Ne2 Na7 Qa5 Rc8 Nc2 Be7 f8B Rh4 f7 Bc3 Nf4 Bf6 Bd3 Nb4 Ng6 c6 Rf1 h1Q+ Kg3 h2 Rf5 Qd1 Re5 h1Q Bd6 Qd2 f8Q Qhe1+ Kf3 Qh2 Bf4 Qed2 Rf1 a1Q Bg3 Qa3 Qe7 Ka2 Rf2 Kb1 Qe8 Kc1 Nf8 Qa4 Bc7 Qa2 Ne1 Nc2 Rf1 Na3 Bb1 Qa1 Nc2+ Qe1 Rh1 Qd2 Rh3 Qf4+ Kg2 Qg5 Re6 Qc5 Re5 Qb6 Rh2 Qa2 Rh1 Qc4 Rf1 Qb4 Rff5 Qe3 Rh5 Qd3 Rh8 Qdc4 Rg8 Qa2 Qh5 Q4c5 Qa4 Be7 Ng6 Qb4 Rd8 Bf6 Nf8 Nc4 Qe8 Qaa3 Qb3 Qaa4 Qa2 Qaa6 Qa5 Na3
4nq2/R1r1PR2/5P2/1q1NB1Q1/2k1K1pq/2Pp1P1B/2qnP2b/R1r1NQ2 w - - 0 1 legal: proof: b4 b5 g4 c5 d4 g5 h4 e5 dxe5 f5 h5 Ba6 gxf5 cxb4 a4 Bb7 axb5 Bd5 Ra2 Bf7 Ra1 Bg6 hxg6 Bc5 Ra5 Be7 Ra1 Bf8 Kd2 Ke7 Ke3 d5 g7 h5 e6 Kd6 c3 Kc5 f3 a5 b6 b3 b7 h4 Kd3 h3 Bg2 g4 Bf4 d4 Ra3 b2 Qa4 h2 Be5 Ra7 Bh3 Nd7 b8Q Nb6 Ra1 Nc4 Qab3 a4 Qc2 a3 Ke4 a2 Qd2 d3 Qf4 Rc7 Na3 b1Q Qg5 Bd6 e7 Qb5 Nc2 Qf8 Ne1 Rh6 Qa8 Rh7 Qa4 Rh8 Qd1 Nd2+ Ke3 Nf6 g8R Rh7 Rg7 Kc4 Rf7 Ne8 f6 Rh6 Nc2 Rh7 Qf1 Rh6 Ne1 Rh8 Rb1 a1Q Rb3 Qaa5 Ra3 Qaa4 Ra2 Qc2 Ra7 Nb1 Ke4 Rh7 Bg2 Rh8 Nh3 Nd2+ Ke3 Rh7 Nf4 Rh4 Rg1 h1Q Nd5 Qh3 Kf4 Qg3+ Kf5 Rh1 Bh3 Qh4 Bd4 Bh2 Be5 Nb1 Ke4 Nd2+ Ke3 Qfh6 Qf2 Rc6 Ng2 Kc5 Rga1 Rc1 Ne1 Rc7 Qg2 Kc4 Qf1 Bg1+ Kf4 Qg7 Kf5 Qf8 Kf4 Bh2+ Kf5 Nb1 Ke4 Nd2+
qN3nn1/R1P2P1b/1K3R2/P2pB2P/b3Qp1Q/1k2Pr1B/n3Bn1N/7q w - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 gxh5 f4 Bd3 b5 Nc3 e5 Ba3 Be7 Na4 Bh4 Kd2 Ra6 Bb2 Rf6 Nc3 Rf5 exf5 e4 Nb1 Bg3 Bf1 e3+ Kd3 e2 Kd2 Bh4 Bc1 Bf6 Qe1 Bd4 Qd1 Be3+ fxe3 Rh6 Qe1 Rh7 Qd1 Rh8 Kd3 Kf7 Kd4 e1N h4 g5 a4 d5 c4 b3 h6 b4 c6 g4 Kc5 g3 c7 b2 f6 Ke6 h7 b3 f7 g2 Qd4 Qd7 Ne2 g1Q Kb6 Nc6 c5 Qd8 Qe4+ Ne5 c6 Nd3 Nd4+ Kd6 Be2 Nf2 Nd2 b1N N2f3 b2 Nh2 Nc3 Ra3 b1B Bb2 Qf8 Ra2 Bh3 c8B Ng6 c7 Bd7 Nc6 Qd8 Ra1 Na2 Nb8 Nf8 Bd4 Be8 Bh3 Qg2 Rc1 Qh1 Rc5 Bd7 Ra5 Bb5 Ra7 Bc6 a5 Ba4 Bf6 Bd3 Rg1 Qe8 Rg6 Qc8 Nc6 Qa8 Nb8 Bb1 Ka6 Kc5 Be5 Bbc2 Rf6 Bb1 Qc2+ Kb4 Qe4+ Kb3 Kb6 Ne7 h5 Rg8 h8Q Rg3 Qh6 Ng8 Qg5 Rf3 Qh4 Bd3 Qd4 Bf5 Qe4 Bh7
7N/B4PrP/3pKn1P/1n1PR1qQ/kBQ3n1/2q3P1/1Qpr1n1R/n1N5 w - - 0 1 legal: proof: c4 b5 cxb5 a6 b4 Bb7 b6 Nc6 b5 Bc8 b7 Nb8 g4 h5 b6 Rh6 Bg2 Rh7 Bc6 Rh8 Bb5 axb5 gxh5 f5 e4 g5 Qc2 d6 Qc3 g4 Qe3 g3 Bb2 g2 Qf3 Bh6 Qd1 Bf4 Bc1 Bg3 fxg3 f4 Ne2 Be6 Ng1 Bf5 exf5 Ra3 Qc2 Ra4 Qd1 Ra8 Ke2 Kd7 Kf3 Kc6 Kg4 e5 h4 f3 a4 e4 d4 f2 a5 f1Q a6 e3 h6 e2 h7 e1N a7 b4 d5+ Kb5 h5 c5 h6 b3 f6 b2 f7 c4 Nh3 g1N Nc3+ Kb4 Nf4 b1N Kf5 Qd3+ Ke6 Nf6 Bd2 Rg8 Nce2+ c3 Rh2 Nc2 Nc1 Rg7 Ng6 Nh3 Nh8 Nc6 b8Q Ne5 b7 Nba3 Qh5 Nf2 Qc8 Qc4 b8B Neg4 Qc7 Qd3 Qc4+ Ka5 Ra2 Na1 Be1 Qd4 Re2 Nb5 Re5 Qg8 Qc6 Ka4 Qc4+ Ka3 Bd2 c2 Bb4+ Ka4 Bc7 Rf8 Bb6 Qc3 Bd4 Rd8 Be3 Rd7 a8Q+ Ra7 Qac8 Rc7 Qd4 Rc4 Qb6 Rd4 Qc4 Rd1 Qb7 Rd2 Ba7 Qd8 Qb6 Ng8 Qb8 Qg5 Qb6 N8f6 Qbd4 Qce3 Qb2 Qc3
1n6/BP1BN3/P2P2R1/3Pn1nK/2Rb3P/Qp1n3b/Q1p3k1/qq1B1nN1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 b4 b3 a5 Qc2 g5 Qd1 Ra7 Ra2 Rb7 Ra3 Rb5 axb5 a4 Ra2 a3 Ra1 Rh6 Kf2 Ra6 Ke1 Ra4 bxa4 Bg4 Ra2 Be6 Ra1 Bc8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 h4 f5 d3 c5 a5 g4+ Ke2 a2 a6 b3 b6 c4 b7 g3 Kf3 g2 h6 c3 h7 c2 h8Q+ Nf6 d6 Bg7 Qf8 Nd5 Be3 Nb4 Nc3 Qb6 Qd2 Qa5 Re1 a1Q Ba7 Qb1 Be2 Qaa1 Nd5 Bf6 Ne7 Bh8 Kf2 f3 Kg3 f2 Bd1 f1N+ Kf3 f4 d4+ Ke6 Kg4 f3 e5 f2 Qdf4 Ne3+ Kh5 Nc4 Re4 f1N Rh3 Bf6 Rg3 Nd3 Rg6 Bd7 Qc1 Bc8 Qb2 Bd7 Nh3 g1N Qa2 Nf3 Ng1 Bc8 Qh6 Bd7 Qc1 Ng5 Qca3 Bc8 Nd5 Kf5 e6 Bg7 e7 Nce5 e8B Be6 Bd7 Bf6 Rg4 Bh8 Rg2 Ke4 Ne7 Bh3 d5 Kf4 Rf2+ Kg3 Rf4 Kg2 Ra4 Nf7 Rb4 Bd4 Rc4 Nfe5
1QKbb1q1/2B3kB/1p1Nr1n1/1r1PP3/3p2P1/3p4/P2PRr1Q/bRN1B3 w - - 0 1 legal: proof: b4 a5 bxa5 f5 c3 d5 g3 e5 Qc2 f4 c4 d4 Qf5 Nc6 Qe4 g5 gxf4 g4 h3 d3 hxg4 Nb4 Qd4 Nd5 cxd5 exd4 e4 Kf7 e5 h5 f5 c5 f4 h4 Kf2 b6 Kf3 c4 Ke4 h3 f6 c3 f5 c2 a6 h2 a7 Ba3 Nc3 Rh6 Nge2 Rh3 Nb5 Ne7 Nd6+ Kf8 f7 Rb8 a8Q Nc6 Rb1 Ba6 Bg2 Ne7 Re1 Kg7 f8Q+ Kh7 f6 h1R f7 Bb4 Ba3 c1B Qh8+ Kg6 f8B Bb2 Nc1 Rg3 Qh2 Rf3 Re2 Ba1 Qa7 Rc8 Qb8 Rc6 Bh6 Qg8 Be3 Kg7 Bf2 Bc5 Be1 Rf2 Bf3 Ng6 Kf5 Bb5 Bb4 Qd8 Ke6 Qg8+ Kd7 Rhf1 Be4 Ba4 Nb7 Be7 Bd6 Bd8 Bc7 Re6+ Kc8 Be8 Nd6 Rg2 Bh4 Rd1 Be1 Rf2 Nb3 Rc1 Bf5 Rc2 Nc1 Rb2 Be4 Rb5 Bf5 Nf8 Bh7 Ng6
bQr5/bR5B/3K1P1P/3n1PQ1/2q3Nb/2r1pk1N/pPpR1P1p/1B1N4 w - - 0 1 illegal: No proof kernel
r3Bn1N/8/Kpb1B3/2q1kPpR/6Q1/Pp2p1P1/2Pq1PnR/2Qb1NQ1 w - - 0 1 legal: proof: e4 a5 h4 g5 d4 c5 dxc5 f5 exf5 Ra6 h5 Rg6 hxg6 e6 b4 Nc6 b5 Nb8 c6 Ke7 b6 Ke8 Bd2 Bd6 Bb4 axb4 Qf3 Na6 Qd5 Bb8 Qd1 Ba7 bxa7 Nb8 Ke2 Ke7 Kd3 Kf6 Kc4 h5 Kb5 d5 a8Q e5 a3 d4 c7 b6 g3 b3 g7 e4 Be2 d3 Qc1 d2 Nf3 d1B Ne5 e3 Qg2 h4 Ng6 h3 Bh5 h2 Nd2 Ne7 g8Q Nd7 Qc4 Nf8 Qg1 Bb7 c8B Nd5 Be6 Bc6+ Ka6 Nf4 Nf1 Ng2 Qg4 Qd2 Rb1 Rg8 Nh8 Ke5 Be8 Rg7 Ra1 Rh7 Qb1 Nh4 Qg2 Bdf3 Qe1 Rb7 Qb1 Rb8 Qb2+ Qd4 Nd2 Rd8 Rag1 Bd1 Qc1 Qc5 Qf1 Rc8 Rg2 Rb8 Rhg1 h1Q Qe1 Qh2 Rh1 Qg1 Rh3 Rd8 Rgh2 Ng2 Rh5 Qf1+ Ka7 Qe2 Qg1 Rc8 Nf1 Qd2 Ka6 Ra8#
R2Q4/2Br1Qp1/PP2K3/4P3/PNBb1np1/Pn2p1k1/3b2pn/r1RN2R1 w - - 0 1 illegal: Other
1B4Rb/1P1nb2q/KN1Qb2r/P7/nqR1Qn1b/4P3/1rNPPNr1/2k4B w - - 0 1 illegal: No proof kernel
1n1RRN1K/3PnrB1/Pn2P3/4r1R1/b1q1nbBQ/2PnPbN1/1n5Q/3k4 w - - 0 1 illegal: No proof kernel
1n1n4/3bK1rN/2q2nB1/2n1R1P1/Q2PP1Rb/r1PRQ1P1/1n5q/N3Bkn1 w - - 0 1 illegal: No proof kernel
N1R1B2b/P1b2PRb/K1b3PB/4nr1Q/r2Pn3/b2q4/P5k1/Bq1Q1N1b w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kf4 g4 e5 f6 c5 a6 h5 a7 h3 d6 e4 f7 e3 d7 e2 f3 Kg3 g5 e1B f4 h4 d3 h2 f5 c4 f6 c3 Be3 h3 Bc5 c2 Qd2 c1B Bb4 Rh5 Na3 Nc6 Qc2 Bc3 Qe2 Bf4 Nc4 Bc7 Nf3 Ne5 Nfd2 b6 Ba5 Ba3 f8B Bcb2 f7 Nf6 Bh6 Ne4 Bg2 Bc3 Rhc1 h1B Qd1 h2 Nf1+ Kf2 Bh3 Bb7 Bg2 Bc6+ Ka6 b5 Nb6 Rc8 Na8 b4 Bh3 b3 Qg4 Qf8 d8Q b2 Qd1 b1B Bd7 Qe7 Qh8 Qd8 Be8 Kg2 Qh7 Bcb2 Bc3 Bb7+ Kb5 Bcd6 Qc2+ Kf3 Bd4 Nc5 Qg6 Nc6 Be5 Bg2 Bd4 h1Q Ng3 Qd1 Qa4 Bh1 Bg1 Bh8 Bd4 Ne5 Bc3 Rc6 d4 Qb8 Ka5 Bf5 Rc2 Qd3 Rg1 Ne4 Ba1 Rc8 Nf1 Rc7 Qg8 Bh7 Qg6 Bd5 Rc4 Qbb1 Ka6 Rc8 Rg4 Rc5 Qd1+ Kf2 Rf4+ Kg2 Rf6 Rc7 Qf5 Rc5 Rg6 Rc8 Rg7 Rc7 g6 Rg5 Qf4 Rf5 Qh4 Rc5 Qhh5 Rc8 Ka5 Bb8 Rb4 Rc4 Ka6 Bc7 Rb8 Bc6 Rc8 Ra4#
N1B2Kr1/P2P1RB1/2BrP3/q1n1Pr1R/5N2/kPQ2bnb/1n6/b2n1Qr1 w - - 0 1 illegal: No possible last move, all moves rejected
1Q1Q1qR1/r1Pnq1PR/P5n1/bb6/1r5n/PQ4Bn/2KP2kr/N2B2rN w - - 0 1 illegal: No proof kernel
n1Q4N/1QpP1R1r/P2BR3/3rPBnk/1qKN4/2b1q3/rqbPP2n/1B6 w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 a4 h5 g4 b5 g6 f5 a5 f4 d6 b3 g7 Kf7 g5 Kg6 Rh4 b4 Nf3 b2 Ra3 b3 Kf2 Nh6 g8B Bf5 Rh3 h4 Nc3 b1Q Bh7+ Kh5 g6 b2 g7 Nf7 g8Q Ng5 Qdb3 Nd7 Nd5 Nb6 Nd4 f3 Ke3 f2 Ne7 Bc2 Rf3 h3 Rf7 h2 Ng6 h1R Bh3 Qa2 Be6 b1Q Bf5 Qab2 d7 Bb4 Qd5 Rh4 Qb7 Bc3 Qf8 Qb8 Qfc8 Qa7 Ra2 Qb4 Ba3 Q4b2 Bd6 f1N+ Kf2 Nh2 Ke3 Qb4 Ra1 Q1b2 a6 Rb8 Rf1 Na8 Re7 Rg4 Re6 Rg1 Rf2 Ra1 Rf1 Ra2 Rf3 Re8 Nh8 Re7 Rf2 Bb3 Bb1 Bc2 Rf7 Qab6 Bf5 Qa7 Qc6 Rb5 Q6b7 Rd5 Rf8 Bd1 Kd3 Rh7 Rff6 Qa5 Rf8 Bc2+ Kc4 Q7b6 Rf7 Qa7 Nb3 Qe3 Nd4 Qab4+
1b4QR/Pb1R4/P1P1nrqP/B2BPN1Q/2n1rqpb/k1r1Nq2/4Q3/7K w - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 e5 dxc5 Rh6 fxe5 Rh8 Kf2 Ke7 Kg2 d5 c4 b5 e4 f5 h4 g5 a4 d4 h5 g3 c6 d3 c7 g4 e6 Kd6 e7 Kc5 e8Q Kb4 a6 d2 c5 f4 e5 Bd6 a5 Qg5 h6 Nf6 a7 Nfd7 Qe1 Nf8 Rh4 f3+ Kh1 g2+ Kh2 f2 Ra2 Bb7 Rh5 Ne6 Ne2 Nc6 Nbc3 d1Q Bd2 g1B+ Kh1 Qf4 Bg2 f1R Nd4 Qdf3 Rf5 Be7 Qg6 Rhc8 Qe2 Bh4 Rf7 Re1 Rb2+ Ka3 Nd5 b4 Qh5 b3 Rd7 Rf1 Rb1 b2 Ne3 Rf2 Rd1 b1Q Ndf5 Qbe4 Rd8 Rab8 Rh8 Rf1 Nd6 Qg6 Ndf5 Re1 Bc3 Rf8 Rd2 Rbc8 Rd7 Rf6 a6 Na5 Bd2 Nc4 Ba5 Qf1 Bd5 Q1f3+ Qg2 Re2 Nd1 Re4 Nde3 Rg8 c8Q Rgf8 Qc7 Rc8 Qd8 Bgf2 Qg8 Be1 Bb6 Ba5 Bd8 Bc7 c6 Bb8 Ba5 Rd8 Re7 Rd6 Rd7 Nc5 Bf7 Rd3 Be6 Rc3 Bd5 Qd1+ Qf1 Ne6 Qe1 Qe2 Qd1 Qef2 Qe2 Q2f3+
1Rb1Bq2/Pp5Q/nk1r1P2/1PR2Qb1/1n4b1/1B1q1PK1/Nr2n2P/1B1N3r w - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 c5 gxh5 c4 b5 c3 Ba3 Rh7 Bb4 axb4 dxc3 Nc6 c4 Rh8 c5 Nb8 a4 e5 c4 g5 h6 d5 h7 Kd7 c6+ Kc7 c5 d4 f3 d3 Kf2 e4 a5 g4 f6 d2 a6 e3+ Kg3 b3 Nc3 b2 Qc2 b1B Bd3 d1Q Nge2 Ne7 Na2 Bh6 Nec3 e2 a7 e1R Rg1 Re8 h8Q Na6 Qh7 Bg5 Bc4 Rg8 Bb3 Qf8 Qcf5 Qd3 Nd1 Rg7 Rg2 Rh1 Re2 Bc2 Rc1 Nd5 Re8 Ndb4 Rd8 Bd7 Rb8 Bc8 Kg2 g3 Kh3 g2 Kg3 Bb1 Rc4 g1N Rc2 Kd8 c7+ Ke8 c6 Ne2+ Kf2 Rd7 Rc5 Rd8 Qd5 Bg4 c8B Rd6 Qdf5 Kd8 Bd7+ Kc7 Be8+ Kb6 c7 Bc2 c8B Bb1 Bce6 Bc2 Rd8 Rc8 Bed5 Rcc6 Be4 Rc7 Rb8 Bb1 Rd5 Rc2 Rc5 Rb2 Kg2 Ng1+ Kg3 Bc2 Bc4 Bb3 Bcf7 Be6 Bg8 Bc8 Bb3 Qd2 Bec2 Qd3 Bb1 Ne2+
1rn2Q1b/R1P1p2n/r1R3r1/N6P/Pb1b1b1B/1q1B4/K2PP2k/2NbQ1R1 w - - 0 1 illegal: No proof kernel
2n1bB2/b4r2/N1NbQPK1/PP2Q3/2P5/rk1b1p1n/2RPqn2/Q2B2rR w - - 0 1 illegal: No possible last move
2n1rk1K/R2pqBr1/1r1nP3/3B1P2/2bNbQ1R/b2Q2NQ/1PPP4/n3r3 w - - 0 1 illegal: No proof kernel forced: bxDB
4qbr1/1P2Q3/1qpP1N1b/1Pn1b1NR/P1KN1RP1/1B1Q1r1b/1B1n1k2/1b6 w - - 0 1 illegal: No proof kernel
5Rn1/2r1N1k1/2qn1p1b/Q1Pn2Pn/2B2P2/2PR1r1P/q1r2Nb1/N1K2BQ1 w - - 0 1 illegal: No proof kernel
qB1rb2K/6R1/k1P3n1/B4p1N/RQbb2P1/1BnP1rP1/q2NP2n/1Q1b4 w - - 0 1 illegal: No proof kernel
B1N2Kr1/1N2Q1R1/PPp1q1B1/1Q3n2/2P1b1b1/q2PbnR1/n3k1P1/r5bN w - - 0 1 illegal: No possible last move, all moves rejected
N2R2K1/4QQPR/7q/2q1n1rP/BN3nn1/2b1P1PP/nB1pk2q/r2b2B1 w - - 0 1 illegal: Other
1Q1N4/RRb3PB/qp6/q1P2N2/r2Pqn2/B2P2nr/2bbRPqk/Q1K5 w - - 0 1 illegal: No proof kernel
r3R3/6p1/1B2NrNK/3P3B/PQ1R1P2/3Qbn1B/nn1P2qP/kb2r1qn w - - 0 1 illegal: Other
1nnKNk2/2rP4/rR1pq2b/B1PP2PB/P1qr1B2/3q2bR/Q3NQ2/r7 w - - 0 1 illegal: No proof kernel
3Bn1Rb/1P2K1qq/b3R2P/1PnP3P/6q1/5Q2/NrNQRpqk/3Br2r w - - 0 1 illegal: No possible last move, all moves rejected
1k5n/nP1r2b1/qB1b1p1R/PQ1q3P/1P3nb1/RBK1Q3/1N1BPr2/1n3N2 w - - 0 1 illegal: No possible last move, all moves rejected
3b3b/2RRb3/1PPQ2Qb/kbpB1r2/1bPn3B/1K1N3P/P3r2N/1N1qn3 w - - 0 1 illegal: No proof kernel
1n5N/K1RqB1RP/1Qb2PPk/r3Pb2/2bn1N2/RP4Q1/p7/b1rbbB2 w - - 0 1 illegal: No proof kernel
1Q1BQ1NK/N3pb1P/3P4/1q2nr2/PnP3B1/bk3N1R/1P2r1Rb/1b1bb3 w - - 0 1 illegal: No proof kernel
2Nrbqb1/R1PpB3/1PQ1r1P1/b1R1Pk2/b2BNn2/b1n5/K1QP1b2/6N1 w - - 0 1 illegal: No proof kernel
8/b2Nk1r1/1rn1P1bQ/3nBR1q/Q2R1n2/PP2PBPr/1p3N1K/3rN1n1 w - - 0 1 illegal: No possible last move, all moves rejected
1k6/NPq2R1b/2PP1Brp/5P2/QN1QPnb1/2n1Brb1/1R2rrB1/3K1b2 w - - 0 1 illegal: No proof kernel
3n3B/nP1r1P1P/2k3pP/5NP1/1qN1N1rR/2Q1nBb1/qR2n2K/Q5nn w - - 0 1 illegal: No proof kernel
4BQ1q/b5B1/R1qbp3/1R2P3/3Pk1P1/4q1P1/Nn1PbR1q/Qnr1Kb1N w - - 0 1 legal: proof: f4 b5 a4 d5 axb5 g5 c3 d4 cxd4 gxf4 h3 a5 g3 Ra6 Ra2 Rg6 Ra1 Rg4 hxg4 Bd7 Qa4 Be6 Qd1 Bc8 b4 Kd7 e4 Ke6 e5 Kd5 b6 f5 b5 h5 b7 c5 b6 a4 Ke2 h4 Qe1 h3 Qd1 e6 Kf2 h2 Ba3 f3 Bg2 f4 Bb4 a3 Ba5 a2 Qb3+ c4 Bf1 Nd7 b8Q Bc5 b7 Ke4 Ke1 f2+ Kd1 f3 Bc3 Ba7 Bh3 f1Q+ Kc2 f2 Na3 Nc5 Re1+ Qe2 Nb1 f1B Bb4 a1Q Qa3 Na4 Bf8 c3 Bg7 Qe3 Kd1 Nf6 Re2 c2+ Ke1 Qc3 Qa1 c1B Qd6 Qc5 b8R Ba6 Qf8 Ba3 Rb5 Nb2 Bg2+ Kd3 Nc3 Nd5 Nb1 Nc3 Nh3 Qc6 Bd5 Bd6 Nf2+ Kc2 Rg1 h1Q Bg2 Qh7 Nh1 Kd3 Bd5 Rg8 Bb3 Qh2 Ba4 Qeh6 Rf2 Ke4 Ra5 Bae2 Ra6 Qe3 Bb5 Qc4 Be8 Qc6 Bf6 Nb5 Bg7 Na3 Nc3+ Kd3 Bh6 Nb1 Na2 Ke4 Bg7 Rh8 Rf7 Rh7 Rg2 Rh3 Rb7 Qh4 Rb5 Qh8 Rf2 Rh7 Bf6 Rc7 Bg7 Qd7 Nc1 Rc5 Na2 Qc6 Rba5 Rc3 Rb5 Rc1+
3n4/2Rn1pP1/1R6/1QN3rP/PbR2PP1/1rp2k2/3B1qb1/QrBK1bnN w - - 0 1 illegal: No proof kernel
1R1B4/r2b1nq1/K1PPQR1P/2b1q3/4kP2/PB2p1b1/1Nn2p1n/1R2QrN1 w - - 0 1 illegal: No proof kernel
1q1rQ3/kPR2P2/5B1q/1p4RP/r2pP2P/B1q2b1B/QnbbKN2/4n2N w - - 0 1 illegal: No proof kernel
N1QrB3/1P2Pqn1/k1P4N/2Bn2Pp/bp1R3P/6b1/5nRr/Qb1qK1N1 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 dxe5 Qb6 axb5 Qd8 b4 cxb4 c4 a5 g4 f5 e4 d5 c5 Kd7 c6+ Kc7 h3 Kb6 g6 f4 g7 a4 g5 a3 e6 a2 e5 f3 e7 f2+ Kd2 d4 e8Q d3 e6 Na6 Rh2 Nc5 Bb2 Qd7 Na3 Bd6 Rg2 Qf7 e7 Bg3 Bd4 Bf5 Be2 f1B Bh5 Nf6 g8N Rd8 Nh6 Nd5 Nc4+ Ka7 b6+ Ka6 b7 Ne6 Qg8 Ng7 Bc5 Be4 Rc1 a1Q Nb6 Be2 Qf1 Bd1 Rc4 Ba4 Na8 Qd4 Qa1 Bf5 Rc2 Be4 Kd1 d2 Ke2 d1N Rd2 Nf2 Ke1 Bb1 Qe8 Rd6 Qc8 Rhd8 h4 Re6+ Kf1 Re2 Bg6 Qg4 Rd4 Ra2 Ke1 Qgf3 Ng8 h5 Nh6 Ng4+ Rf2 Q7f4 Be8 Qf7 Kf1 Qb3 Rf3 Rh2 Rf2 Qbf3 Ke1 Qb3 Kd2 Qbf3 Rg2 Nf2 Ke1 Qd1+
bQ4bN/2BB1P2/1R2KP2/1nNpbPp1/1kq3Pn/1b2r1P1/6QR/1Qb4r w - - 0 1 illegal: Other
NBbk3K/1B4Q1/1rbp1n1p/b1P1q3/B2RP1P1/R1Qr1P2/n4PN1/3b2r1 w - - 0 1 illegal: No proof kernel
1QRr3b/Nn2nB1p/rP1p2n1/P1P5/Q1bk1BP1/2Nb1R2/1P5R/b4q1K w - - 0 1 illegal: No proof kernel
7r/QnnpN1Pp/BP3Q1B/rN1P4/1kbNP1q1/1r5b/4rP1n/3RK2R w - - 0 1 illegal: No proof kernel
1n6/1kp2P1q/3P1PQp/RK2nb2/1r1QP3/r1bN2B1/BPr1BnNR/7n w - - 0 1 illegal: No proof kernel
1r1RQ2b/1P1BR2P/1r2nP2/1bNqp3/N1n2bQK/6B1/5pPP/1k1bQ1n1 w - - 0 1 illegal: No proof kernel
b1n3N1/1q1B2QK/1P2P1PP/p1br1RQp/2BR1R2/kb3N1P/1rn1q1b1/8 w - - 0 1 illegal: No proof kernel
Rr3N2/1N1nnQ1B/PKBPb2p/3qp1Q1/2b1PrP1/4Q1R1/2kq1P1b/1b6 w - - 0 1 illegal: No proof kernel
3n4/1P1Nnprr/BBQ2Qq1/P1Nb3P/p1R2Pn1/1b1Pn2k/4K3/R2Q3q w - - 0 1 illegal: No proof kernel
1N1n1R2/1PPBb1r1/2q3QN/P2q3b/bkrB2KQ/6pR/Pb1p2P1/N1n5 w - - 0 1 illegal: No possible last move
Nq1b2BK/1p2r1nP/1bQp3Q/n3P2R/1q5n/R2P4/1P2kP1B/NR3qb1 w - - 1 2 illegal: No proof kernel
1NBn1n2/Pb5q/4RQp1/2pP2RP/1nP1rq1P/2N1bn1K/QR1n1B2/5k2 w - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 b5 b3 a5 exd5 e4 b4 axb4 Bc4 Ra6 Bd3 Re6 Bf1 Re5 fxe5 Qe7 Qe2 Qg5 Qd1 Qd8 Kf2 Kd7 Kg3 c5 a4 f5 c4 e3 h4 g6 d4 e2 e6+ Kd6 a5 e1N e7 b3 e8Q b4 a6 f4+ Kh2 b2 a7 b3 Qd2 f3 Qee3 f2 Qdd3 Qe7 Qed2 Nc6 Qa5 Qh7 Bh3 f1Q Bf5 Qf4+ Kh3 Nf6 Ra2 Bb7 Bc8 Nd7 Qdc3 Nd3 Nf3 Bh6 Rg1 Nf8 Rg5 Ndb4 Ne5 Nd8 Nc6 Rg8 Qa4 Rg7 Bd2 Re7 Nb8 Re1 Qf3 Re4 Nc3 b1N Be3 b2 Bf2 Nd2 Qb3 b1N Rb2 Re3 Qa2 Re4 Qg2 Nf3 Qf1 Nbd2 Qfa1 Ke7 d6+ Kf6 d7 Ke6 d5+ Kf6 Rg3 Kf5 Qf1 Bg7 Rg1 Bd4 Qfa1 Be3 Rg3 Ke5 Rg5+ Kd4 Qf1 Nf7 Qfa1 Kd3 d8R N3e5 Rd6 Nd8 Re6 Nef3 Qa6 Qe7 Q1a2 Qh7 Nd1 Ke2 Nc3+ Kf1 Qd6 Qg7 Qe7 Qg8 Qf6 Qh7
rkb2q2/p1N2nQ1/PrR2R1n/1qBp2q1/3Q2P1/1QBP3q/3P1P2/q3K2N w - - 1 2 illegal: No extended proof kernel
q1R1Q3/1pn1p3/1Rr2Pr1/1PBBKn2/2P1PB2/NknP1nN1/2b3q1/2n2Q2 w - - 0 2 illegal: No proof kernel
b1k3B1/r3Q2B/PB1pN1Kb/P3n2Q/bbnR3R/1Npb1q2/1P1P2Pq/8 w - - 0 1 illegal: No possible last move
2Q1B3/Rq1PB1n1/2pK3P/bqPR4/pP3NN1/1rR5/1Q1rrP1n/1n1r1k2 w - - 0 1 illegal: No proof kernel
5b1b/k2Pr3/pqqR1pK1/P1P3b1/2N2PBr/QN2BQ1P/2bnR3/1r4B1 w - - 1 2 legal: proof: e4 b5 c4 d5 b4 dxe4 g4 h5 gxh5 c5 bxc5 b4 Qa4+ Nc6 Qc2 Nd4 Qd1 Nb5 cxb5 Qc7 Nh3 Qd7 Ng1 Qd8 Ke2 Kd7 Ke3 Kc7 Kf4 Kb7 Kg5 b3 a4 b2 d4 e3 f4 e2 d5 e1Q h3 a6 b6 Ra7 d6 Qe4 h6 e5+ Kh5 g5 a5 g4 h7 g3 Ra2 g2 Qf3 Qc6 Nd2 b1R Nc4 e4 Ne2 g1B Nd4 e3 Be2 Bf5 Nb3 Bc2 Rh2 Kb8 b7 Qdb6 Rh1 Bf2 Rd1 Bh4 Rd5 Bg5 d7 Ra8 Rd1 Ka7 Rd6 Re8 Bd1 e2 Be3 e1B Rb2 Bd3 Re2 Bc3 Bg1 Bc2 b8B+ Kb7 Bc7 Re6 Bd8 Re5 Bf6 Re7 Bfd4 Ka7 Bde3 Nh6 Bd4 Ng4 Bdf2 Nh2 Be3 Rg8 h8Q Nf1 Qd4 Nd2 Qd3 Bh8 Qc3 f6 Qb2 Re4 Qa2 Rg7 Qa3 Rh7+ Kg6 Rh4 Nc1 Ba4 Nb3 Re7 Bc2 Qc8 Bf5 Qcb7 Bg4 Q7c6 Nd4 Bd1 Nb3 Bc2+
Q1K1b2B/2P2nq1/6P1/1rpB1p2/3RPNkB/P5n1/2q1rP1q/Qn1q1R1N w - - 0 1 illegal: No proof kernel
3k1n2/3Pp2b/1pqB1n2/Rr2n1QP/3N3B/6Pb/bP1QPb1K/N2NRq2 w - - 1 2 illegal: No proof kernel
1n2rb1r/kb1N1b1P/B2n4/P2p3N/R2PnQRp/3N3P/QKPB4/4rr2 w - - 1 2 legal: proof: e4 c5 b4 cxb4 g4 h5 Nc3 f5 exf5 d6 Nb5 h4 Nc7+ Kd7 Be2 a6 Bxa6 Qe8 Bf1 Qh5 gxh5 Ra6 Nf3 Ra4 Ng1 Ra8 d4 Kc6 Kd2 Kb6 f4 g5 a4 e5 h3 e4 f6 g4 h6 b3 Kc3 e3 a5+ Ka7 h7 b5 f5 e2 f7 e1R f6 g3 Nd5 g2 Ne2 g1R Ndf4 b4+ Kb2 Nh6 Ra4 Bb7 Ng3 Nf5 Ba6 Rgf1 Qh5 Bh6 Nd3 Bf8 Kb1 b2 Rg1 Bh1 Ka2 b1N Kb2 b3 Bd2 Nc3 Qg4 Bb7 Qf4 Ne4 Nh5 Bg7 Rg4 Bf8 Ka3 b2 Ka2 b1B+ Kb2 Bh6 f8Q Ba2 Qg8 Bf8 Qd5 Bc4 f7 Ba2 Qc6 Be6 Qc4 d5 Qb3 Nfd6 Qa2 Bg7 f8N Bf7 Nd7 Bf8 Rg5 Nc6 Rg2 Re8 Rg4 Nb8
1k6/Nr4Q1/1R1prBQ1/p2r1P1P/5r2/nn2qb1P/P1n1RPBN/2n1BK2 w - - 0 1 legal: proof: e4 h5 g4 f5 exf5 b5 gxh5 c5 d4 e6 Nc3 c4 Nb1 b4 c3 Bc5 dxc5 bxc3 b4 g5 b5 a5 c6 g4 b6 g3 c7 c2 b7 e5 h3 e4 Bg2 c3 Bb2 e3 Qd5 e2 Bf1 g2 Qc5 Ra7 Qb4 Qg5 Rh2 Na6 b8B Ne7 Qc4 Nc6 Qd5 Ne5 Qb3 Nb4 Qd5 Bb7 Qc6 Nc4 Rh1 Na3 Nf3 g1R Nh2 Rg4 c8Q+ Ke7 Q6c7 Rd8 Bg2 Bf3 Qa6 Rb7 Qg6 Qf4 Rf1 Qe4 Ba7 Rf4 Be3 Qe5 Bd2 Qe6 Qc4 Kd6 Qd4+ Kc7 Qdg7 Kb8 Rh1 c1N Rg1 c2 Nc3 Qe5 Nb5 Qe8 Bdc3 Ncd3+ Kd2 c1N Rb1 e1R Na7 Re5 Re1 Nbc2 Re2 Nc5 Ba1 d6 Rb6 N5b3+ Kd1 Rc5 Bb4 Qe7 Bf6 Qe3 Bbc3 Re8 Bd2 Nca1 Ke1 Re6 Kf1 N1c2 Be1 Rd5
kb1NBKBq/p7/bP1p1B2/1r1n1n2/nPRP4/1b2R2P/P2n3b/1N2Q2Q w - - 1 2 legal: proof: f4 h5 c4 b5 cxb5 e5 Na3 h4 Nb1 h3 gxh3 exf4 Qa4 g5 Kd1 g4 Nf3 g3 Ng1 g2 Ke1 Na6 Qc2 Rb8 Qd1 Rb6 Qb3 Rg6 Qd1 Rg3 hxg3 Rh6 Nc3 Rh5 Nb1 Rh8 Kf2 f5 Kf3 c5 b4 c4 e4 c3 d4 c2 g4 Nc5 e5 Nh6 b6 Bd6 e6 Na4 g5 Bb8 g6 d6 e7 Kd7 g7 Kc6 e8Q+ Kb7 g8B Ka8 Be3 c1N Bd2 Be6 Bb5 Nb3 Ne2 g1B Bd7 Bh2 Re1 Bc4 Qe7 Rh7 Be8 Rg7 Qe3 Rg5 Qg1 Qf6 Qh1 Qh8 Be3 Rh5 Bf2 Rg5 Bh4 Rh5 Bf6 Nd2+ Kf2+ f3 Ke3 Bf7 Nf4 Bb3 Ne6 f4+ Kd3 Rf5 Re3 Rb5 Nd8 Nf5 Qhe1 f2 Qc1 Nc4 Ke4 f3 Qh1 f1N Qe1 Nc5+ Kd5 f2 Kc6 Nfd2 Kd5 Na4+ Ke6+ Rd5 Kf7 f1B Kf8 Be2 Rc3 Nce3 Rc4 Bf1 Nc3 Bd3 Rc1 Bf1 Nb1 Be2 R4c3 Bec4 Rd3 Ba6 Rc6 Ra5 Rc4+ Nd5 Re3 Rb5
3b1n1R/1pR1N3/3Bbn2/1Qp1Pq2/1P2PnB1/2Pb1Q1K/PbB3nN/1b2k3 w - - 0 1 illegal: No proof kernel
n2QQ2b/KnBbB3/2p1R2P/QrR3nN/2P1P1p1/3k2P1/Pbp1q3/r2N4 w - - 0 1 illegal: No proof kernel
2Nb2R1/1K1Q1n1P/r1NbB1p1/1n1P2P1/1q2Qrpp/k3P3/1q4PB/1bQ4R w - - 0 1 illegal: No proof kernel
nr3Q2/B3B1RP/1pQ1rqRp/3P4/K1p1N3/1bb4P/P1rP1N1q/k3n1R1 w - - 0 1 illegal: No possible last move
2B1R1rQ/2b3np/Q2rPn1P/q7/2pB2kP/1q2p1N1/1PR1P1K1/1N1b1rQ1 w - - 0 1 legal: proof: c4 b5 g4 a5 a4 e5 c5 e4 axb5 Qg5 h4 Qh5 c6 dxc6 gxh5 c5 f3 c4 f4 Ra6 Bh3 Re6 Bf1 Re5 fxe5 Ba6 Ra3 Bb7 Ra1 Bc8 Kf2 Kd7 d4 Ke6 b6 Kf5 h6 g5 d5 c5 e6 a4 d6 e3+ Kf3 c3 b7 a3 d7 c2 d8Q g4+ Kg3 a2 Q8d2 c4 Qd8 Na6 b8Q Bd6+ Kg2 g3 Qb3 Bc7 Q8d5+ Kg4 Nf3 f5 Na3 f4 Qe1 Nf6 Qb8 Rg8 Qd6 Bd7 Ng5 Ba4 Bd2 c1Q Nb1 Qc3 Ne4 Qb3 Bc3 Rd8 Bd4 f3+ Kg1 g2 Ng3 Rd7 Qh8 f2+ Kh2 g1R Bg2 f1R Bb7 Rd8 Bc8 Rg8 Qc1 Rd1 Qa3 Rgf1 Kg2 Rd3 Ba7 Rd6 Bd4 Qb8 Qe1 Bd1 Qf2 Qb3 Qg1 Nb4 Qa6 Ne8 Nc3 Nd5 Rc1 a1Q Rc2 Ba5 Nb1 Ndf6 Rh3 Bc7 Ne4 Qaa2 Rf3 Ng7 Ng3 Nfe8 Rf8 Nf6 Re8 Qa5
1R1bN3/4R1p1/r3QPP1/1PrK1Rpn/2pnB1q1/1k4B1/2Nb1PPq/n6Q w - - 0 1 illegal: No proof kernel
2R3B1/1prQn3/1R2PNPq/PQ1N2pq/5n2/1P1B3P/K4bpk/1b2Qnr1 w - - 0 1 illegal: No proof kernel
r6n/PNRP1qB1/K1p1pbP1/2nR2QP/3r4/1k1P2qp/2bQB3/4bRN1 w - - 0 1 illegal: No proof kernel
RBBB2q1/1pQPp1P1/1P2P1N1/1k1n1pq1/3P2NQ/1rb2Rq1/3n4/K2b2b1 w - - 1 2 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 g5 gxh5 g4 b4 Ra7 b5 Ra6 Qa4 Rg6 Qb4 Rg5 fxg5 axb4 Kd1 Kd7 Kc2 c5 Kb2 f6 a4 b3 e4 c4 d4 g3 h4 g2 d6 Qb6 g6 Nc6 h6 Qa6 h5 Nd8 b6 Kc6 a5 Kb5 h7 Bg7 e5 Bd7 h6 Be8 Nd2 Nf7 Nh3 g1B Nf3 Qa8 a6 Qa7 Nh4 Bf8 Bf4 Ng5 Nf2 Bh2 Ng4 Bg1 Rh3 Qa8 a7 Ne4 Rf3 Nd2 Bh3 Bg7 Ra4 c3+ Ka1 c2 Bh2 Qd8 a8Q Qc7 Qb8 b2+ Ka2 c1Q Ra8 Qc8 Qc7 Qd8 Nf2 Qb8 Bc8 f5 e6 Nf6 d7 Nd5 Ng4 Bf6 Bg3 Bg5 Bd6 Rg8 h8Q B5e3 h7 Bef2 Qf6 Be1 h8B Rg7 Bh2 Rg8 Qd8 Qg3 Qc7 Rg7 Qg5 Rh7 Be5 Bf7 Ng2 Rh3 g7 Bh5 Qd8 Qc7 Nh4 Qc1 Bf4 Qc7 Ng6 b1Q+ Ka3 Qd3+ Ka2 Qe3 Be5 Qef4 Qh4 Qe3 Ka1 Qg5 Qg8 Qd8 Bc7 Qf8 Bb8 Qf7 Qd8 Qg8 Qc7 Q3f4 Rf2 Rb3 Rf3 Qg3 Qc2 Qg2 Bhc7 Qh2 Bd8 Qg3 N4e5 Bg4 Qc7 Bh5 Rf2 Bd1 Ng4 Nf1 Rf4 Ba5 Rf2 Nd2 Rf3 Bc3+
1b1qR1KQ/b1QpR1qB/1p1B3q/r1n2P2/pNk2N2/5P2/PPn1P2n/6R1 w - - 1 2 legal: proof: d4 g5 c4 e5 g4 exd4 h3 a5 c5 b6 c6 Bb7 cxb7 f5 gxf5 g4 Bd2 g3 Bc1 Nf6 Nc3 Rg8 Nb1 Rg4 hxg4 Ng8 Bd2 Nf6 Bf4 Ng8 Bc1 Bh6 Be3 Ke7 Nf3 Qe8 Kd2 Nf6 Qb3 Na6 Rh4 Rd8 Rh1 Nb8 Ng1 Qg8 Rh2 Qg5 Kd1 Rh8 Bc1 Ng8 Rh1 Ke8 Ke1 Qd8 Qd1 Bf8 Kd2 Kf7 Kd3 c5 Ke4 h5 Ke5 a4 Qd2 c4 Bg2 c3 Bh3 g2 Qh6 d3 Qd6 d2 Qa3 d1N Bf4 h4 Bg3 c2 Nc3 c1B Qd6 Ne3 Qc7 Nf6 Nd5 Rh5 Nb4 Na6 b8Q Nc2 Qbc8 Bg5 Rd1 Bc1 Rd3 Nc5 Re3 Nfe4 Q8b8 Ng5 Re4 Bg7+ Kd6 Nf3 Re7+ Kf8 Bf4 Nh2 Qbc8 Bh6 Ke5 Kg8 Kf6 Bf8 Bd6 Bf4 Kg6 Bg7 Qa8 Bge5 Qab8 Rg5+ Kh6 Kf8 Kh7 Bg3 Nf3 g1Q Ne1 Qg2 Ned3 Qg1 Bg2 h3 Be4 Qg2 Nf4 Qg1 Re8+ Kf7 Qa8 Qg2 Rg1 Kf6 Bf8 Rh5+ Kg8 Bd6 Be7+ Ke5 Bf8+ Kd4 Re7 Rg5+ Ng6 Qc8 Qca7 Bge5 Kf7 Bf6 f3 Na1 Re6 Nc2 Bc6 Bfe5 Bd5 Nf1 Bb3 Rh5 g5 h2 Nf4 h1Q g6 Rh8 g7 Qh6 g8R Nh2 Rg7 Qc7 Be7 Rb8 Rh7 Rb7 Qh8 Qd8 Bf8 Rb8 Re8 Ra8 Qb7 Ra5 Rg7 Bb8 Qa7 Bec7 Bd6 Qgg5 Qb7 Ba7 Qc6 Bcb8 Qc7 Na1 Kf8 Qhh4 Bg8 Nc2 Bh7 Kc4 Re7 Qhh6+ Kf7 Qgf6+ Kg8 Qfg7+
2k2nn1/q4r1p/2P3pP/n2Kq3/1RpR1b1Q/3rQ1P1/B1PPBq2/2N2NQ1 w - - 1 3 legal: proof: b4 c5 a4 b5 axb5 e5 f4 Qf6 fxe5 Qd8 b6 Ba6 b5 Bb7 e4 Ke7 e6 d6 e5 Nd7 Bb2 Nb8 Bd4 Ke8 e7 Kd7 Bb2 Bc6 bxc6+ Ke6 Bc3 Kd5 e6 Nd7 Na3 Nb8 Be5 dxe5 Nb1 Kd6 Ke2 f5 Kd3 a5 Kc4 g6 e8Q a4 h4 f4 g3 f3 b7 Kc7 e7 f2 h5 e4 h6 e3 Bh3 f1Q+ Ne2 a3 Nc3 a2 Rb1 a1N Rb4 Ra3 Bg4 Qf2 Qg1 Nd7 Nd1 Rd3 Nc1 e2 Rh4 e1Q Be2 Qb8 Ne3 Qa7 Rd4 Nb3 Nf1 Na5+ Kd5 Bg7 Qf7 Nf8 e8B+ Kd8 Qf3 Be5 Qe3 Bc7 Bd7 Bf4 Bc8 Kc7 b8Q+ Kd8 Qb5 Kc7 Be6 Kd8 Bf7 Kc8 Na2 Qa1 Nc1 Qb2 Ke4 Qc3 Ba2 c4 Qh5 Qb2 Rb7 Qb5 Qh4 Qg5 Rb6 Qge7+ Kd5 Qe4+ Kc5 Qe5+ Rd5 Nd7+ Kb4 Ne7 Rd4 Rf8 Rb7 Rf7 Rb5 Qf6 Rb6 Nf8 Kc5 Ng8 Kd5 Qfe7 Rb4 Qe5+
qNR5/2PPQRQ1/b2p2p1/1nnpN3/N2Pn1P1/rB5b/4K1bP/Bk3n2 w - - 0 2 illegal: No proof kernel
1b1Kr2R/3p4/1R1Q1Q2/N1P1p2n/P1n1rP2/2nNPBPp/3qNrn1/k1B5 w - - 0 1 illegal: No extended proof kernel
B1QBRQN1/3NNP1b/2bRp3/1P1nnP1n/2bPk1r1/3p2b1/3KPp1q/8 w - - 0 1 illegal: No proof kernel
1K6/1q1PPk2/1p1pN2n/3PP1B1/1Pp1Rb2/R1qb2q1/1QQ1qr1n/B4B1N w - - 0 2 legal: proof: g4 a5 f4 h5 gxh5 e5 fxe5 a4 b4 Rh6 c3 Rh8 Qb3 axb3 c4 Ra6 c5 Re6 c6 d6 Bb2 Re7 Bc1 Rd7 cxd7+ Ke7 Kf2 f5 Ke3 c5 a4 g5 d4 c4 h4 b6 h6 f4+ Ke4 f3 Kd5 f2 e4 g4 h5 b2 h7 g3 e6 g2 a5 Nh6 a6 Ng8 a7 Nh6 a8Q Ng8 h6 Qe8 Nf3 g1Q Ra3 Bg7 Ng5 Qh5 Rh4 Be5 Qa4 Qf3 Nd2 b1Q Qc2 Qa1 Rg4 Kf6 e7 Qac3 Ne6 Bf4 Rh4 Qgg3 Rg4 Na6 Kc6 Nb8+ Kc7 Nc6 Rh4 Ne5 Kb8 Kf7 Rg4 Nf6 Rh4 Rf8 h8B Nfg4 h7 Nh6 Bg7 Ng6 h8Q Ne5 Bf6 Qe2 Bb2 Qef3 Bg5 Neg4 Ba1 Nh2 e5 Qc6 Ne4 Qd5 Bg2 f1Q Nf2 Qfd3 Nh1 Qe2 Bf1 Bb7+ Kc7 Bc1 Re4 Bf4 Qb2 Bc6 Qc2 Ba4 Qb2 Qa8 d5 Bc2 Qf6+ Kg8 Qf5 Bd3 Qh3 Rf6 Qg2 Kf7 Qf2 Be3 Qg2 Rf2 Qc2 Qa6 Kb8 Bf4 Qf3 Qe3 Qfe2 Qed2 Qb2 Qe1 Qed2 Qe2 Qdc2 Qb7+
3B1N1B/2p1Pqr1/bR1Bb2b/1PP2p2/Pkb2nQR/p6Q/PK3n1q/6N1 w - - 1 2 illegal: No possible last move
1n4Bn/p2n1Np1/5q1P/1P1KPkP1/3Q1N2/BRp1P1R1/Bb4b1/1qnQ3r w - - 0 1 illegal: No proof kernel
K2n4/2BPb3/Rp2rq1q/r2N1B1p/BN1P3q/p2R1Q1Q/1P1P1n1P/1q2k3 w - - 0 2 illegal: No proof kernel forced: bxDB
3q2N1/k1P3BR/n2bpQP1/4rppR/bP2PB1Q/1r1r4/K4NP1/1rq2Q2 w - - 0 2 illegal: No proof kernel
1N3K2/P3qRQP/p1Nr4/rb1pRrB1/n3Q3/PP2b1qp/3B1P1r/3B2k1 w - - 0 1 illegal: No proof kernel
1Kq1Q1r1/1B6/2PR4/p1b1npp1/2b2qPQ/Pk3N1b/1P2RP1N/1B1R1b1b w - - 1 3 legal: proof: c4 b5 h4 e5 h5 a5 d3 g5 Be3 c5 Bd4 Ra6 cxb5 Rg6 hxg6 c4 Be3 Na6 d4 Nc5 dxc5 Qe7 Bd4 exd4 Qc1 Qf6 Qd1 Qd8 Kd2 Ke7 e4 Ke6 e5 Kd5 e6 h5 b6 f5 g7 h4 a3 d3 Ke3 h3 e7 d2 e8R c3 c6 c2 b7 c1Q b8Q h2 Qh5 d1B+ Nd2 Bg4 Nf3 Ne7 Ba6 Ng6 Rd1 h1B Bb7 Ne5 Nh2 Bh3 g4 Rg8 Qh4 d6 Re7 Be6 Qc8 Qd7 Qe8 Qc8 Rd7 Qc4 Ndf3+ Kc5 Rd2 d5 Rd6 Qa4 Rg1 Kc4 Re2 Kb3 Rf1 Qc4 Rd1 Qc1+ Kd4 Qf4+ Kc5 d4 Kb6 d3 Ka7 d2 Rc1 Bc4 Rd1 Rh8 g8B Be7 Bd5 Rg8 Be4 Bf8 Rde1 d1B Bb1 Bc2 Red1 B2d3 Red2 Bdf1 Re2 Qd7 Kb8 Qe6 Rd8 Bc5 R8d6 Qc8+
2q2R1r/B1P1BK1p/2p2PbN/3Q2pR/5r1r/b2B1bP1/1P3b1P/3krQ1N w - - 0 1 legal: proof: d4 f5 e4 fxe4 c4 b5 cxb5 c6 a4 Ba6 d5 Nf6 d6 Nd5 a5 Nb6 axb6 Bc8 Nd2 Na6 Nb1 Nc7 dxc7 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Kf7 Ke3 Kg6 Kf4 e5+ Kg4 a5 f4 e3 b7 e4 b8B e2 g3 e1R b6 a4 b7 e3 Na3 e2 Nb5 a3 Qd2 a2 Qd5 Ba3 Nh3 Ra4 Nd4 Kh6 Kf5 Kh5 Ke5 Kg4 Ba7 Qg8 b8Q g5 Kf6 d6 Qbb5 Bf5 Be3 Bg6 Nf5 Qc8 Bec5 Rd4 Rc1 a1R Rc4 Re4 Nh6+ Kf3 f5 Rad1 Bab6 Rd4 Nf2 Ke3 Qa6 Kd2 Ba7 Rh4 Rg1 Rf4 Nh1 Kd1 Rg2 Rh4 Rf2 Rf4 Qf3 d5 Be7 Rde4 Qb5 d4 Qd5 d3 Qg2 Bh5 Rb4 Bf3 Kf7 d2 Ra4 Kc1 Rb4 d1B Rc4+ Bc2 Qg1 Rd1 Rd4 e1B Bd3 Rh4 Qf1 Ref4 Re4 Bg4 Rf3 Bf2 Re6 Re1 Rg6 Ra4 Rf4 Rd4 f6 Bb1 Rg8 Kd1 Rf8 Bf3 Rg4 Rh3 Rh4 Rf4 Rh5 Rhh4 Bc4+ Bd4 Ba6 Bf5 Bd3 Bf2 Bd4 B5e4 Ba7 Bg6+
2NQB1r1/1p3K1p/b2R4/P2Qq3/1P6/1bp1rRP1/PBP1npk1/1Nr1qN2 w - - 0 2 illegal: No proof kernel
Q5N1/QBBPRp2/1b5b/r3qP2/Ppknp2P/p2bq3/RQ2P3/n3KN2 w - - 1 2 legal: proof: g4 h5 gxh5 d5 c4 Nf6 cxd5 Ng8 b3 Rh7 Qc2 Rh6 Qd1 Rh8 Ba3 b5 Bh3 a5 Bg2 a4 Bc1 a3 Bf1 Ra4 bxa4 Na6 Nf3 Nb4 Ng1 Nxa2 f4 Kd7 d4 Kd6 h4 g5 f5 c5 h6 e5 h7 c4 Rh3 c3 Nf3 b4 Nh2 c2 Nc3 g4 Re3 g3 Bg2 Qa5 Nf1 Ba6 Re4 Bd3 Bf4 Nc1 Ra2 Qb5 Re3 Nb3 Ne4+ Kd7 d6 Kc6 d7 Kd5 d8Q+ Kc4 d5 c1Q d6 Ne7 d7 Nc6 Qe8 Ncd4 Nf6 Bh6 Qa8 Na1 Bb7 g2 Ng8 g1B Qa7 Qc3+ Qd2 Qb3 Qb2 Qd5 Ne7 Ra8 h8Q Qd6 Ng8 Qd5 Qb8 Ra5 Qa7 Qb5 Bg5 Qd5 Bd8 Qe4 Bc7 Qf4 Rg3 e4 Rg6 Qe5 Re6 Nb5 Re7 Bb6 Qg7 Nd4 Qf8 Qc2 Qfa8 Qc1+ Kf2 Qcf4+ Ke1 Qe3
1QR3Q1/qPPpQ1NB/Pr2p2q/3Pb3/3Nnp2/p3P1b1/3b2K1/1Rrk2B1 w - - 0 2 illegal: No proof kernel
q1Nn2B1/P2r1pP1/2BPQB2/2p3rP/p1N2k1p/1rQn2R1/1RP1b2K/q7 w - - 0 1 illegal: No proof kernel
1R3B1R/5b1p/Q1B2Rp1/2q1P3/1N3rP1/4QKPP/qk2pP1p/n1rn1n1N w - - 0 2 illegal: Other
8/PB2Np2/B1R1rBp1/2nP1Qn1/p2p1r2/1nPqq2P/5PKb/3kNQR1 w - - 0 1 illegal: No proof kernel
1r3Bn1/1Pp4R/RPR1n1Bp/1Q2Kn2/NbP4P/k2Np1q1/3pb1P1/5Qn1 w - - 0 2 legal: proof: e4 e5 a4 b5 axb5 f5 d4 g5 f4 a5 fxg5 Ra6 Ke2 Re6 Kd2 fxe4 Ke1 e3 Bd2 e4 Bc1 Re5 dxe5 Ba3 Ke2 Be7 Ke1 Bf8 Ke2 Ke7 c4 d5 b4 a4 e6 Kd6 b6 d4 b7 a3 g6 a2 e7 Na6 e8Q Bf5 b5 Kc5 g7 Kb4 b6 Nc5 Nh3 Qg5 Nf4 Qg3 Nc3 Ne6 Na4 Bh3 Bd2+ Ka3 Qb5 Bb4 Nd3 Bf5 Qe1 Bh3 Qf2 Bg4+ Qf3 Nh6 h3 Rb8 g8R Bh5 Rd8 Ng8 Rd6 Bg4 Rc6 h6 h4 Bh5 Re1 a1N Bc1+ Ka2 Ba3 Nb3 Rd1 Ng7 Re1 Nc5 Rg1 Nce6 Rh1 Ba5 Bf8 Nf5 Rd1 Bb4 Rh3 Qe5 Ra1+ Kb3 Rg3 Qf4 Rg7 Qg3 Rh7 Bg4 Kd1 e2+ Kc1 e1N Kd1 Qd6 Ke2 Bh5 Kf2 Bg4 Qe2 Nf3 Qe1 Qe5 Be2 Bh5 Qf1 Ng1 Bg4 Qh2 Bh3 Bd1 Bg4 Qe5 Bh5 Be2 Bg6 Qh2 Nab2 Qe5 Ra6 Qg7 Na4 Ka3 Ndb2 Nd6 Kg3 e3 Qe1 d3 Qf1 d2 Nd3 Nd8 Kf4 Nf5 Ke4 Ne6 Kd5 Qd7+ Ke5 Qd6+ Ke4 Qf4+ Kd5 Qf3+ Ke5 Qg3+
k1K3RR/2p2B1q/1pP2BPb/b1ppq1r1/1P1P3b/P2QN3/1N3Br1/3Qq3 w - - 0 3 illegal: Other
Q7/pBbbBN2/1Pp4P/3r1p1k/P2R1n1P/R1Q3n1/1pNN1Pb1/3bK2b w - - 0 1 illegal: No proof kernel
Q3R3/r1PR2P1/NkBp1p2/1p2P1Bp/3pKn2/nPqb2Q1/1R1PN1r1/2r5 w - - 1 2 legal: proof: h4 c5 f4 g5 hxg5 e5 fxe5 b5 a4 Bd6 c3 Ba6 a5 Bc8 Qa4 Bc7 Qd4 Bb6 axb6 cxd4 Kf2 h5 Kf3 a5 e4 a4 g4 a3 b7 a2 c4 Qa5 g6 Kd8 e6 Kc7 g5 Ra7 g7 Qb6 e7 Ra4 e8R Rb4 b3 Qa7 c5 Qa8 c6 Nh6 g8Q Nf5 g6 Qa5 e5 Kb6 Nc3 Ng3 Bg2 Ne2 Ne4 Ra4 Nc5 Na6 b8Q+ Bb7 Ba3 Qc3+ Ke4 Nf4 Qa8 Nb4 Na6 Nc2 Be7 d6 Bg5 f6 Ne2 Na3 Rhb1 Rc4 Qg7 Rg8 Rb2 Bc8 Rg1 a1R c7 Ra2 Qd7 Ra1 Qg4 Be6 Qg3 Rc5 Bh3 Bc4 Bd7 Rf1 Rg2 Rf2 Rg1 Rg2 Bc6 Rf8 g7 Rg8 Ra1 Rh8 Re7 Rb8 Rd7 Rb7 Raa2 Ra7 Qh3 Bd5+ Kf5 Qc4 Qf8 Nb1 Qg3 Ra8 Nb4 Qc1 Ra7 Na3 Na6 Rc3 Qg8 Bc4 Ke4 Rc2 Ra2 Qa1 Qh8 Qc3 Rb2 Rc1 Rb7+ Ka5 Rb8 Ra7 Qc8 Rcg1 Qb7 Rd1 Rh8 Rc1 Qa8 Kb6 Re8 Bd3+
2n5/rRBKQNP1/1pn1bRNb/1nPp3p/1pq5/B1QPp3/1P2k2P/4B3 w - - 0 3 illegal: No possible last move, all moves rejected
6K1/4N1P1/1nrp2Rp/RQp2p1B/1N2P1p1/2PB1Prb/1Q1q2P1/2Qb2kq w - - 0 3 legal: proof: h4 b5 a4 g5 axb5 Bb7 Nc3 Be4 Nb1 Bh6 Rh3 Bf5 Rh2 Bh3 Rh1 g4 d4 e5 d5 c5 Be3 Nc6 dxc6 Bf4 Bd4 Bg5 hxg5 exd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kf4 e4 a5 b4 f5 c7 a4 c8B a3 b6 a2 c3 h6 g6 d3 b7 d2 b8Q+ Qc7 b5 Rh7 g7 Ra3 b6 Ra6 b7 Rc6 Qc1 Re6 Bd3 Re8 Na3 Rf8 Nf3 Rh8 Ne5 Qd8 Nc6+ Qc7 Ne7 Rf6 Nc2 Rc6 Rb1 a1Q Nb4 Qb2 Ra1 Qc2 Ra5 Qb1 Re1 Qb2 Re3 d1B Re1+ Qd2 Re2 Qe3 Rb2 Qd2 Rba2 Rb6 Ra6 Rc6 R2a5 Nf6+ Kc4 Ne8 Kd5 Nd6 Rb6 Rd8 Rba6 Kg5 Ke5 Kh4 Kf6 Nc4+ Kf7 Qh2 Rb6 Rc7 Rg6 Qh1 Ra7 Nb6 Ra5 d6 Be6 Rc6 Bb3 Rd7 Qe8 Rdc7 b8Q Ra7 Kg8 Ra8 Rb5 Ra2 Bf7 Ra1 Ra5 Ra4 Na2 Rd4 Nb4 Rd5 Rf6 Rd4 Bh5 Rd5 Rg6 Rd4 Bb1 Rd3 Qb7 Rg3 Bd3 Rc7 Qb5 Rc6 Rf6 Kg5 f3 Kf4 Rg6 Ke3 Nbd5+ Kf2 Qbb2 Qe2 Nb4 Kg1 Qa6 Qe3 Qb5 Qd2
1Nn5/b1rQb1Rp/3BNq1R/1PpQ1p2/rPK2q2/1PP4R/B3p1pP/7k w - - 0 2 illegal: No proof kernel
b4Nn1/PRnpnR2/p1p1Rp1P/P1PnN3/3Q3p/5q2/1QBB2P1/1K1r3k w - - 0 1 illegal: No possible last move, all moves rejected
1bR2r1B/1qprkBp1/1PPb1NPn/2NP2Rb/4n3/3B2P1/2q4n/1rQ1KQ2 w - - 0 1 illegal: No proof kernel
1Q2b3/3k1rrB/K2pr1qp/1P1Pb2P/4P2B/rrR1nP2/n6N/b2R1RQN w - - 0 1 illegal: No possible last move
2RNn3/PpPn2qr/K3N1Pb/2Bpn1bB/1QQ5/1P5b/3Pr2k/2Qrn1R1 w - - 0 1 illegal: Other
3N1N1K/1pp2rnQ/3R4/rr3qbn/PB1Pb3/1PP1QPbB/r1k5/R2n3N w - - 0 1 illegal: No proof kernel
BqbQ1Nq1/1N1p2KR/r6P/b1RP1kp1/3nqq2/2Q3PP/qnP2B2/rN6 w - - 0 1 illegal: No proof kernel
q4q2/NRp4n/B2P3K/P1Br1pn1/2P1bP1b/3Pnn1k/2n3R1/2rQRQ1N w - - 0 1 legal: proof: e4 d5 exd5 a5 g4 h5 b4 axb4 gxh5 Be6 Bc4 Bf5 Bf1 Bc8 Ke2 Kd7 Ke3 e5 f4 b5 h4 g5 c4 e4 a4 b3 a5 g4 h6 b4 h5 g3 d3 g2 h7 b2 h6 b3 Nc3 b1N Ra4 b2 Qe2 Nd2 Nb5 b1Q Na3 Be7 Qd1 Nf6 Rh5 Bb7 Bb2 Nf3 Rh2 Nc6 Ne2 g1N Nb5 Ncd4 Na7 Ng5 Ng3 N1f3 Ra1 Qf8 Rg2 Rd8 Nh1 Nf5+ Ke2 e3 Bd4 Qb6 Bc5 Qa6 Rb1 Rg8 h8Q Nfh7 Qa1 Bc6 Rb7 f6 Nb5 Qa8 Na7 Rh8 Rg1 Rg8 Bh3 Rg6 Rg2 Rg7 Kf1 e2+ Kf2 e1N Bg4 Nc2 d6 Ke6 Qf1 Rb8 Qad1 Be4 Ke2 Nh2 Bf3 Nfe3 Kf2 Kf5 Kg3 Re8 Kh4 Bd8 Kh5 Re5 Rf2 Rd5 Re2 Ne6 Re1 Rg1 Bg2 Nhg5 h7 Nhf3 h8R Nh7 Rg8 Neg5 Rg7 Be7 Kh6 Kg4 Bh3+ Kh4 Bd7 f5 Bb5 Bd8 Qf2+ Kh3 Ba6 Ne6 Qfe2 Bh4 Qf2 Qh8 Rg2 Neg5 Re2 Re1 Qf1 Qhg8 Qd2 Rc1 Qdd1 Qgc8 Re1 Qf8+
BQqBbQbK/N1P4p/1p4R1/2r1P1NP/R4bPr/1n1b2n1/1Pq1k3/Q2b4 w - - 0 1 illegal: No proof kernel
8/4q1P1/1QB3n1/R2KPR1p/P2b1NkP/1rnQpqB1/rbNNP1b1/2n4b w - - 0 1 illegal: No proof kernel
1b1K3q/NR3BkP/p5q1/PP1br2r/rBBP1Qq1/3p2nN/3P4/nR1Q3q w - - 0 1 illegal: No possible last move, all moves rejected
1NR2rQQ/2p1K1Nb/1qP2p1R/b2n4/1q1B4/P3nPrP/B1nk1P1R/3n3b w - - 0 1 illegal: No possible last move
1B1nn3/N1bnBbp1/K1n3Pp/P1qNr1QR/3P3Q/1q4P1/r3B1kP/1R1b4 w - - 0 1 illegal: No proof kernel
Qr1qNK2/4pr1P/Rbp4P/nbB5/2P2Qnb/PN1R2p1/N5Pk/1nr2B2 w - - 0 1 illegal: No proof kernel
5Q2/B3np1P/3p2Nr/kq3rRP/Np1bRP2/4PK1n/1PBnr3/1RQ2bb1 w - - 0 1 illegal: No proof kernel
1BbR3R/4p1p1/rR2Pr2/3pPNk1/nqQPPbB1/1r4nq/3Pb3/5QKN w - - 0 1 illegal: Other
N7/2q1B2P/r1npq1QN/N1pPq1KB/1nP1p1b1/4bPR1/r2kPr2/5Q1R w - - 2 3 illegal: No possible last move
1QQRb1rk/q2N3r/2P1pn1p/2bQ3P/3q4/1pB1PBP1/6nP/RN1r1q1K w - - 0 1 illegal: No possible last move, all moves rejected
2r1nB1b/1PkqNppq/BR3Pr1/P1N4R/p2Q4/P2bKQP1/1n6/2Rq3n w - - 0 3 illegal: Other
n1q1r1B1/1k2p2R/q7/1P2b2B/pPQ1NqpR/bbn1PP2/1Br3P1/N3Q2K w - - 0 1 illegal: No proof kernel
3n1N1K/3rPbQ1/n1r2b2/2R1P1p1/2Q1Bpkn/P1pnR1N1/2P3PQ/2B1q1b1 w - - 0 1 illegal: No proof kernel
3rn3/3pQP1k/1NR2P2/Kn1r1NP1/b1pPRQpr/bB6/2Pr1q2/1RB2n2 w - - 0 1 illegal: No proof kernel
3Q1nb1/pp1QRr2/kbbp2nB/n2q1PQ1/1P6/3R1KN1/nN1P1P1P/r4B2 w - - 0 1 illegal: No possible last move, all moves rejected
2Q1Kn2/Nn1PB1pb/1r2qp1P/q2pP1R1/4B1Pr/3Pr1Q1/k1N1r1R1/b6B w - - 0 1 illegal: No proof kernel
N2Bq1N1/1b3p1r/3np3/1Kp1PQB1/RQB1rPr1/q1r2R2/PPPk3n/b7 w - - 1 3 illegal: Other
1KRQrb2/1pNb1B2/1R1q2pn/2Bn1P2/1q2Nq2/3Q1PP1/1P1NpPk1/r6q w - - 0 1 illegal: Other
qbb4Q/NP4Q1/1b1B2N1/R3rPK1/n2p1p1p/R2PP3/p3B2P/k1n1rr1Q w - - 0 1 illegal: No proof kernel
r1N3N1/3n2bp/1PR1nQ2/1p4pn/qP3PR1/B1p1Pq1B/b2KBkP1/3Q1r2 w - - 0 1 illegal: No possible last move, all moves rejected
4Q2K/Rp2r1p1/NnP3Qp/k6P/2bPB3/2b1B1Q1/q1PR2Pp/3bNnrq w - - 0 1 illegal: Other
Q7/1PpkB3/Bp1n1prB/PNP4Q/RP3Kpr/1q4P1/r1bb1r2/2R1N2n w - - 0 3 illegal: No possible last move
b2Q1bR1/2Nn1K1b/p4Q2/1NB2PqQ/PBp2p2/2p1nP1P/2P1r2r/R3b2k w - - 1 3 illegal: No proof kernel
1B6/NBBq1P2/1nr1pPQp/k2bQrnN/2P1P3/p3K2R/PR2np2/4bn2 w - - 0 1 illegal: No proof kernel
4n3/pNn1P1r1/PB1Pp1kr/2ppQb2/1Rr4q/2nP3Q/2P1B1n1/1N2KR1Q w - - 0 1 illegal: No possible last move
1k1B4/3rp1P1/p1QR1Nb1/Q2b1N2/Pp1qPb1p/pP1r1PQ1/1BK5/Rn5n w - - 2 3 illegal: Other
8/3ppp1B/q1RrP1pp/1b1k1B1Q/1b2NQ1P/n2N1Pr1/nRb3PP/K6R w - - 4 6 illegal: Other
N3n2b/2p1p2P/2Nq2pp/2PP4/2RQ1r1P/3bP1nk/K2B1Qpr/1R2R1Br w - - 0 3 illegal: No proof kernel
b7/1Bp1p3/Pp3qq1/Rb2Ppr1/2rP2nB/1PQ2p1Q/NKP3nR/3B1Nk1 w - - 2 3 illegal: No proof kernel
5N2/6q1/p3K1pp/1QqN2PB/PpRp1R1P/1n1nQq2/1P1BrP1b/1rB4k w - - 1 4 legal: proof: d4 c5 e4 cxd4 c4 f5 exf5 b5 Bg5 b4 Bf4 Ba6 Bc1 Bb5 cxb5 Qc8 Bh6 Qc7 Bc1 Qd8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 a4 Ke4 g3 d5 h3 e5 f6 a6 b6 g6 f7 d3 b7 d2 Ra3 d4 Ne2 Qe7 Qb3 d1Q Qc4 Nf6+ Kg5 Nc6 b8B Qc5 g4 Na5 Qb5 Nd5 Rc3 Nf4 Kf6 Nd3 g5 Kf3 Ke6 e4 Bbf4 e3 Rc4 Bd6 f8Q Nb3 Nbc3 Re8+ Qe7 h6 h4 Rc8 Nd5 Rhe8 Bh3 Bb8 Bg4+ Kg2 Re1 Be5 Ng3 Qf3 Ne4 e2 Bfd2 Bh2 Nef6 Rc7 Bh5 Rcc8 Nd7 Rc7 Rh1 e1Q+ Be3 Qc3 Bed2 Qf8 Rf1 Qg7 Re1 Rcc8 Re4 Kh1 Nf8 Rc6+ Kd7 Re6 Rf4 Re1 Qf7 R8e2 Qe7 Qc8+ Kd6 Qg4 Qe3 Qf3 Ke6 Rd1 Be1 Qc2 Bcd2 Rb1 Bc1 Qc3 Bed2 Qc2 Rc8 Qc5 Rc7 Qa7 Rc4 Qc5
8/BpbR3n/4n1N1/1bP2r1p/1P2p1b1/RPpR1r2/B1knPQpP/2N1KQ2 w - - 0 1 illegal: No proof kernel
bn1K4/2QB1rp1/p1Pb1p2/Br4N1/2R1pN1k/1Pq3pp/P2PPRB1/1nQ5 w - - 0 1 illegal: Other
5NQb/k1BpP1pB/4r1pN/6Pp/2nKpp2/1r1PR1qP/n3qPR1/5QR1 w - - 2 4 illegal: Other
1Q1n4/p2bq1PB/P2B2p1/1Kpnr1N1/2Pb2Pp/Qn3B1P/r1nk4/NR2R2n w - - 0 1 illegal: No proof kernel
3B1nr1/r1pp1p2/1n1kpPN1/1q1P4/b1PN1RRQ/1BN1P2K/Q2P1n2/1nbb4 w - - 0 1 illegal: Other
bb5K/p3p3/1N1pb1BP/1r1PkpQ1/1BpR2n1/qp3P2/1PP1rnQ1/N2R3R w - - 0 1 illegal: No proof kernel
1r6/1q1RB1p1/1Pr3PR/BK2n3/6N1/1B2pb1N/Pk4PP/1rrB3Q w - - 0 1 legal: proof: c4 h5 b4 b5 d4 c5 e4 f5 exf5 a5 bxa5 d5 f3 e6 cxd5 c4 Qd2 Bc5 dxc5 Nd7 Qb2 Nb6 axb6 Ra6 Qd4 Ra8 Qg4 hxg4 fxg4 Ra7 Bg5 Ra5 Bc1 Ra8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 d6 Kd4 f6 c3 g5 e5 d7 e4 c6 e3 f7 c2 f8B Ne7 c7 Qe8 d8Q+ Bd7 c8B Ra7 Bd2 c1R Nh3 Rc2 Bc4 Qf7 Rd1 Ra3 Bb3 Ng6 Nc3 Qe6 Ne4 Rc6 Nf6 Ne5 Ng4 Qf7 Be7 Rc1 Qc7 Bc6 g6 Ra5 Rb1 Bf3 Bf5 Qd5 Bfc2 Qb7 Qc6 Rb8 Qf6 Be2 Qf1 Bf3 Qh1 Raa8 Rb2 Rc8 Rb1 Rab8 Ka5 b4 Kb5 Rc6 Be1+ Nd3 Rd2 Kc3 Bd1 Rc2 Rc1 Ne5 Rd7+ Kb2 Bd2 Rc7 Be1 R2c6 Rc4 Rcc8 Rf4 R8c7 Rf5 Rc1 Rh5 R7c6 Bbc2 b3 Rh6 Ka1 Bc3+ b2 Ba5 b1R+ Bb3 Kb2
Q1N3rn/6P1/2Kq3B/1n6/P2P1Nnb/2BPk3/brRNq2P/1Nb3Rr w - - 0 1 legal: proof: e4 f5 exf5 d5 b4 a5 bxa5 d4 c3 Ra7 cxd4 Ra8 g4 g5 f4 h5 Bh3 Kf7 fxg5 Qd6 g6+ Ke8 g5 Qd8 Bg4 hxg4 Ke2 Kd7 Ke3 Kc6 Ke4 b5 a4 e5 f6 g3 a6 g2 f7 b4 a7 b3 g7 b2 g6 Qd6 Na3 b1N Qh5 Be7 f8B Be6 Nh3 g1R Qh4 Nh6 g8N Nc3+ Kd3 Kd5 g7 c5 Nc2 e4+ Ke3 c4 Na3 Nf7 Ra2 Nc6 Nb1 Nb5 Rc2 Rb8 a8N c3 Nf4+ Kc4 Qh3 Nce5 Nf6 Rg8 Qg2 Nh8 Qf3 Rf1 Rg1 Rb7 Nh7 Bh4 Ng5 Rd1 Qg2 Bf7 Nf3 Rb8 Be7 Rf1 Bb2 Rc1 Bg5 Ng4+ Ke2 e3 Bh6 Na7 Ba1 Rb2 Qh1 Nb5 d3+ Kb4 Nfd2 Ba2 Kf3 e2 Qg2 e1Q Nb6 Qf1+ Ke4 Qe2+ Kf5 Re1 Qa8 Rd1 Rc1 c2 Nc8 Qf2 Ke4 Rf1 Rg2 Rh1 Rcg1 c1B Nc4 Qe7+ Kd5 Qfe2 Kc6 Kb3 Ncd2+ Kc2 Rf2 Qd8 Rg3 Kd1 Rfg2 Ke1 Rg1+ Kf2 R3g2+ Ke3 Rf2 Rb4 Bc3 Rb2 Nb3 Qf1 Rc2 Qe2 N3d2 Qd6+
1b6/1P2q1kb/BNRn2B1/r1P4K/1n2Rpq1/1N2Q1rn/1PP3PB/1b5B w - - 0 1 illegal: Other
1b4bB/P3R3/1P1N2N1/4Pr2/P2BnpN1/K3rnr1/nPkNqR1r/6Q1 w - - 0 1 illegal: No proof kernel
1q6/b1r3BB/1bp1b1Pr/2PRb1b1/1Pk1P1RR/4n3/1Q3PN1/1NKrR3 w - - 0 1 legal: proof: a4 b5 axb5 f5 d3 e5 e3 e4 dxe4 f4 exf4 Bb7 Qd2 Ba6 Qd1 Bc8 g4 g5 Qd6 h5 Qd3 hxg4 Qd1 g3 Bd2 g4 Ra3 Na6 Bc1 Nc5 Ra2 Ne6 Ra1 Ng5 fxg5 Rh7 Ra2 Rh6 Ra1 Rh8 Kd2 Ke7 c4 Kd6 h4 Kc5 g6 a5 h5 d5 b3 d4 b6 g2 b7 g3 b8R c6 h6 a4 h7 d3 Qg4 a3 Qe2 a2 Rb6 Ne7 Qf3 Nd5 Na3 Be6 Rh4 Ne3 Nh3 g1B Rg4 g2 Nb1 Qb8 Qf6 Bh6 Bb2 Bh2 Kc1 g1B Nf4 Bg5 Ng2 Bc7 Rb4 Rc8 h8R Bgh2 Rhh4 Bb6 Qg7 Be5 Rb5+ Kd6 Qb7 Rc7 Be2 Bed4 Rf5 Bdc5 Bg7 Bd4 Bf1 Be5 Be2 Kc5 b4+ Kd4 c5 Kc4 Bd1 Bd6 Rd5 d2+ Kb2 Ra3 Qa7 Rd3 Qa3 Bg3 Ba4 d1R Bc2 Rh1 Bd1 Bd6 Kc1 Ba7 Qb2 Bde7 Rf4 Bd8 Rhg4 Rh6 Bb3+ Kb5 Rh4 Rd2 Rfg4 Rd4 Bc2 Kc4 Bb3+ Kd3 Nd2 Re7 Rd7 Bf5 Bg8 Be6 Bh7 Bdb6 Rd5 Rc7 Rb1 Nc2 Kd1 a1B Qa2 Bc3 Rc1 Ba1 Nb1 Bc3 Qb2 Kc4+ Ke2 Rd3 Rd1 Be5 Re1 Rb3 Kd1 Ne3+ Kd2 Rd3+ Kc1 Rd1+
1N1qr1QB/3b4/2P1PBnn/1K3kB1/2Pp2n1/P1P2q1R/2b2p1R/2N1qB2 w - - 0 1 illegal: No proof kernel
3n4/kqqPpB1n/2PP1rb1/3B4/Np1K2Qb/1R1RN1p1/2P3P1/3Nn2N w - - 0 1 legal: proof: e4 d5 b4 g5 h4 c5 bxc5 g4 Bb2 Qd7 Ba3 Qf5 Bc1 Qg5 hxg5 Kd7 Rh6 Kd8 Rh1 Ke8 exd5 b5 a4 a5 Rh3 f6 Rh1 b4 Bb2 Ra6 Bc3 Rb6 Be5 Rb5 axb5 fxe5 Ke2 Kd7 Ke3 Kc7 d4 Kb7 f4 h5 c6+ Kb6 g6 g3 f5 h4 f6 e4 d6 h3 g7 a4 d5 h2 d7 a3 f7 a2 d6 Rh5 Nh3 Rh4 Kd4 e3+ Qg4 e2 Nf2 e1N Nc3 Na6 Rd1 a1Q Bc4 Nf6 g8B Rh6 Bd5 Nh7 Rd3 Qa5 Ncd1 Nc5 Rf1 Qa7 Nh1 Qc7 Rff3 Rf6 Rfe3 Bg7 f8N Ka7 Ng6 Nb7 Bgf7 Bh6 Ne5 Nd8 Nc4 Bg5 Rf3 Bb7 Nce3 Bh4 Rb3 Ba6 b6+ Ka8 b7+ Ka7 b8N Bd3 Na6 Bg6 Nc5 Qb7 Nhf2 h1Q Na4 Qg1 Nh1 Qc7 Rf2 Qf1 Rd2 Qb5 Rdd3 Qbb7
4RN2/2n1nPQ1/1pb2PP1/1P1B2Nq/1P6/nB1RKpk1/p1qp4/3n2BB w - - 0 1 illegal: No proof kernel
B3q3/2q2q2/kN2Nb2/q1BPR1n1/1P2P1N1/PQ1r1brP/n1b1n3/1R1N1K2 w - - 0 1 illegal: No proof kernel
6nn/P1B5/1n6/k2qR1P1/b2Q3b/PBpKq1bq/1P2BP2/NRBNr2r w - - 0 1 illegal: No proof kernel
3BnB2/PR3QPr/2KbBN2/2Nr1n2/1nP1bRqp/bP6/rk1P4/3B2n1 w - - 0 1 illegal: No proof kernel
7r/2BkBq2/nb1p1bnr/RR1Pb2P/K3qr1b/2P3P1/2B4P/Q1N1NB2 w - - 0 1 illegal: No proof kernel
1r3NqQ/6nB/k1PrPn2/6rp/1b1P1q1N/B1q1N1R1/P3KRP1/N4q1b w - - 0 1 illegal: No proof kernel
B1qnn1K1/3rN3/p2B3r/3R1P1n/2qP2b1/P2QPbbR/1R1RN2P/5n1k w - - 0 1 illegal: No proof kernel
2b4Q/b4RBp/2q3PP/4NqnN/1r1PnB1B/1Pk1nB1P/4r3/Kn2b1R1 w - - 0 1 illegal: No proof kernel
2bN3r/RN2R3/B2bQ3/q2rprP1/1PPB2bP/2n1P3/1k1b2BB/r1n3K1 w - - 0 1 legal: proof: d4 b5 f4 h5 a4 g5 fxg5 c5 axb5 cxd4 Qd3 Qb6 Qh7 Qc7 Qxh5 Qb6 Qh7 Qd8 Kf2 a5 b4 e5 h4 Ke7 g4 Kd6 c3 Kd5 e3 f5 b6 d3 g6 Kc4 g5 Kb3 g7 d5 b7 d4 c4 f4 Qf5 d2 Qf7 d1R Na3 f3 Nh3 d3 Bg2 d2 Nf4 a4 Ne6 Na6 b8B Nc5 Ba7 Qa5 Nb5 a3 Rf1 a2 Nd6 Nd3+ Kg1 Nf6 g8B Ne4 Bd4 Nc3 Nb7 Bd6 Ned8 Ra6 Bb2 Nc1 Qe6 Ra7 Bh7 Ra8 Be4 f2+ Kh2 Ra7 Bc6 Ra6 Bb5 Ra8 Ba6 Ra7 Rg1 f1R Kh1 Rf5 Rf1 Re1 Kh2 d1B Kg1 Re2 Rf2 Rd2 Rf4 Bg4 Rf2 Na4 Bbc3 Rd1+ Be1 Nc3 Rf1 Kb2 Bg3 Ra8 Bh2 Rd3 Bb6 Rd5 Bd4 Nd3 Rad1 a1B Rf4 Nc1 Rd3 Rff8 Rf7 Ra7 Rh7 Rf5 Re7 Qb6 Qf6 Kc2 Rd2+ Kb1 Bb5 N3e2+ Kh1 Bc3 Ra2 Bd2 Qe6 Nc3 Kg1 Qc7 Ra6 Kb2 Ra4 Ra6 Ra3 Rb6 Ra8 Ra6 Ra7 Ra1 Ba6 Qa5
2q2QNb/1P2N3/1B2r3/1N1n4/B2R4/KPqq1prP/3PkPNq/q1b2b1R w - - 0 1 illegal: No possible last move, all moves rejected
B4q2/1Kp1N3/1P1BP1rk/2P1n1r1/1P2b3/1RQ1rB1q/nPBq3R/q1N3q1 w - - 0 1 illegal: No proof kernel
1r2R1nq/pP4Nb/p3K1N1/PBB1P1r1/q1nP3N/2krP3/3R1N1Q/b6b w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 d5 gxh5 Ne7 c4 Rh6 cxd5 Rh8 Qb3 Ng8 Qd3 Bd7 Qg6 Bc8 Qa6 bxa6 Kf2 Kd7 Kf3 f5 Kf4 c5 b4 g6 a4 c4 h4 c3 d4 c2 d6 Kc6 e3 Kd5 h6 Nc6 h7 Be6 d7 Rb8 b5 Na5 h5 Bb4 b6 Bc3 b7 Nc4 Ba3 c1Q a5 Qd1 h6 Qa4 Ra2 Ba1 Bc5 Bf7 Nd2 g5+ Kg3 f4+ Kg4 f3 Kf5 g4 Ne4 g3 Nf2 g2 Rd2 Qe8 d8N Rc8 Ne6 Bg6+ Kf4 Rc6 Ng7 Rb6 Rh5 Rb3 Rf5 Qb8 Rf8 Rd3 Re8 Qc8 Ne4 f2 Nf3 g1R Nh4 Rg3 Be2 f1B Nf2 Bg2 Bf1 Bf7 Be2 Qa8 Kf5 Bh5 Bf1 Bd1 Be2 Bh1 Bf1 Bc2 Be2 Kc6 Ke6 Kb5 Bf1 Rg5 Be2 Ne7 Bf1 Rf8 h8N Ng8 h7 Qd8 N8g6 Qb8 Bb6 Kb4 h8Q Kc3 Bc5 Qc7 Ngf5 Qg7 Qh6 Qh8 Ng7 Rg4 Qf4 Rg1 Qh2 Rg5 Re7 Rb8 Re8 Bb3 Bg2 Bd1 Bc6 Bdf3 Bb5 Be4 Ne7 Bh7 Neg6 Rc8 Bf8 Rd8 Bc5 Rb8
N1RBqb2/8/r4P1P/3rn1rb/p7/K2p1B1k/PrPQ1PRB/2nqN2B w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 h5 bxc5 e5 g4 Qc7 gxh5 Qd8 d4 exd4 Kd2 Kf7 h4 Kf6 c6 g5 c7 a5 h6 d5 h7 b5 h5 b4 h6 a4 Qf3 b3 Bg2 g4 Kd3 g3 Be3 b2 Nc3 b1R Nb5 Qe8 Rh3 Ne7 Qe2 Nec6 Nf3 Nd7 Bh1 g2 Bf4 g1R Qd2 Na5 Bh2 Rg5 Ne1 Rb2 Rb1 Rhg8 Rg3 Nb3 Rg2 Ra6 h8B+ R8g7 Rd1 Bb7 c8B Ne5+ Ke2 Ba8 Bb7 d3+ Ke3 Rh5 Nc7 Nc1 Kd4 Rg5 Kc3 Rh5 Qe3 d2 Bc6 Bb7 Na8 Bc8 Bb7 Bd7 Qf4 Bb5 Qd4 Be2 Qb4 Bg4 Qd6+ Kg5 Bc6 Nb3 Kb4 Kh4 Ka3 d4 Bf3 Rgg5 Bf6 Kh3 Bd8 Nc1 f6 d3 Qb4 Nb3 Ra1 d1Q Rb1 Bg7 Qa5 Nc1 Qd2 Bf8+ Be7 Rb8 Rb5 Rbb6 Rc5 Rb2 Rc3 Rh4 Rc4 Bh5 Rc8 Rhb4 Bd8 Rb5+ Be7 Rc5 Bd8 Rd5+
1Nk1B1q1/P4pRP/1n6/2r1pq2/N1B1rrq1/1PB1Pn2/1K3P2/1nbRBQ2 w - - 1 2 legal: proof: d4 a5 g4 b5 a4 h5 gxh5 c5 axb5 Ba6 bxa6 cxd4 Kd2 d5 h4 Kd7 c4 g5 Kc2 e5 b3 a4 h6 d3+ Kb2 a3+ Kc3 a2 h7 g4 e3 d4+ Kb2 d2 c5 d3 h5 g3 h6 g2 a7 Ne7 c6+ Kc8 c7 Nd5 Be2 Nc3 Qf1 d1Q Nf3 g1N Nd4 d2 Nc6 Nf3 Rg1 Nd7 Nb8 Bb4 Rg7 Nb6 Bc4 Rg8 h8B Qe2 h7 d1Q+ Nd2 Qed3 Ne4 Nb1 Nc5 Qf5 Bd2 Qdg5 Be1 Bd2 Na4 Qg2 Rg3 Rg4 Bg7 Re4 Bf8 Qe2 Rg7 Qgg4 Ba3 Qd3 Rg6 Qd8 Bb4 Qg8 Ba5 Nc3 Rd1 a1R Rg7 Nb1 Bc3 Rf4 Nc5 Ra5 Na4 Rc5 Bd3 Rcc4 Be2 Rce4 Bc4 Kb7 c8B+ Kc7 Nd7 Kd8 Bb7 Rc8 Nb8 Rc5 Bc6 Kc8 Be8 Bc1+
1BRq4/1q3N2/1pBqn1n1/Kb1Pq1QN/P3RN2/r1pq3P/2P2r1P/1kN5 w - - 0 1 illegal: No possible last move, all moves rejected
1K1kB3/3bRP2/PNpPq1Nq/5Nn1/RnP3N1/3P1nQ1/pr3B2/3bbn2 w - - 0 1 illegal: No proof kernel
q6R/PnpNr2p/b3P3/Rq2r2K/bRP1BB2/Q1N4b/1Pr3P1/3Rb1k1 w - - 0 1 illegal: No proof kernel
B4nb1/5P2/6b1/rQ2Bb1R/1bP1Kb1r/4pP1N/BPkbP1Np/1R2n2B w - - 0 1 illegal: No possible last move, all moves rejected
1k6/q3RPNp/2Rb2pB/2nrpP2/2r3bP/1NP1r1NP/1Bn1Q3/2KN2n1 w - - 0 1 illegal: No proof kernel
8/k1PnP3/PNbP1BQ1/bKNN3n/2p1r1Rp/b7/Pp1R2r1/qN1r3B w - - 0 1 illegal: No proof kernel
1b3qr1/P2Pb2N/3R1RP1/1r3b2/2RKpnr1/Pk1pRp2/1P1BNQ1n/5B2 w - - 0 1 illegal: No proof kernel
3q2QB/2b1N3/PN2RPNK/1q2P2B/3Prr2/pbP1nb2/1kN2pRp/2n5 w - - 0 1 illegal: No proof kernel
Qb1Nnb2/2N2q1p/pNP1b1RB/7k/3rKn2/N2PPPq1/5pP1/1B2rR2 w - - 0 1 illegal: No proof kernel
8/2bb1nPQ/4p1rN/p1PrRnbB/1N2N1Pq/PPB2Kp1/R4N2/1qk5 w - - 0 1 illegal: No proof kernel
BrBrr1nQ/3K1R2/RP2n1N1/1p3P1r/5p2/pPBP2P1/3b3B/2qk1bN1 w - - 0 1 illegal: No possible last move
3QN3/p2Rpnb1/2P2R2/2P1rBB1/p2PB2N/3bb2n/r2P1B1P/q2b1k1K w - - 0 1 illegal: No proof kernel
k7/2p1PN2/3B4/pqP1bQ1N/NB1R1n1P/2P1Kn2/P3pr1R/1nr1qr1N w - - 1 2 legal: proof: g4 h5 gxh5 e5 d4 b6 dxe5 Bb7 b3 Ba6 e4 f5 e6 Rh7 e5 Rh6 Bg2 Bc4 bxc4 Rh8 Be4 fxe4 Ke2 g5 h4 d5 f4 a5 f5 g4 f6 d4 e7 Kd7 e8N Kc8 c3 Kb7 h6 e3 f7 d3+ Ke1 g3 h7 g2 e6 b5 c5 d2+ Ke2 b4 Bb2 b3 Qc2 d1R Nd2 Bg7 f8B Nd7 Nh3 g1Q Nc4 Be5 Ba3 b2 Ng7 b1N Nb2 Rc1 Bb4 Qb8 Nh5 Ngf6 Na4 Nd5 Bd6 Rf8 h8N Rff1 Nf2 Nf4+ Kf3 e2 e7 Ra6 Nf7 Ka8 Ke3 Qb5 Rh2 Rb6 Qd3 Rb8 Qf5 Rf8 Ke4 Qg3 Nh1 Qe1 Ke3 Bg7 Qg6 Ne5 Qh7 Nf3 Qf5 Nbd2 Rb1 Be5 Rb2 Nb1 Rd2 Rg8 Rd5 Rg2 Rd4 Rgf2
5RNn/2p1P2n/nP6/bRPq1rPK/Q2p3B/p2P3q/b1Nk3N/1Bn1N3 w - - 1 2 legal: proof: f4 e5 a4 b5 axb5 f6 g4 f5 gxf5 exf4 h4 g5 Bg2 a5 Bh3 g4 Bf1 Ra6 Na3 Rg6 Nb1 Rg5 hxg5 Ke7 Nh3 Kf7 Ng1 Ke8 Kf2 Kf7 c4 h5 b4 d5 e4 f3 Kg3 f2 Kh4 d4 c5 g3 f6 Kg6 f7 g2 b6 a4 b5 a3 b7 Na6 b8N Qd5 e5 Kf5 e6 Kf4 b6 Nh6 Nf3 g1N Qa4 Bd6 f8N Nf7 e7 Ne2 Nh7 Be6 Nh2 Rf8 Nc6 Nh8 Nb4 Rf5 Nf6 Bg8 Bh3 f1N Nc2 Ne3 d3 Be6 Bd2 Nc1 Be1 Ng4 Ng8 Nf6 Nd2 Nh7 Ndf3 Bf7 Rf1 Be6 Nb4 Ke3 Rb1 Bf4 Nc2+ Ke2 Rb4 Bd2 Rb5 Ba5 Bf2 Bf7 Nfe1 Kd2 Bg4 Be6 Bd1 Bf7 Nb4 Be6 Bc2 Bf7 Bb1 Be6 Kh3 h4 Kg4 h3 Nbc2 Bf7 Bh4 Be6 Nf6 Bg8 Kh5 Be6 Nhg4 h2 Ng8 h1Q Nh2 Qhg2 Rf4 Qh3 Rf1 Qd6 Rf3 Ba2 Rf4 Qd5 Rf3 Re5 Rf8 Rf5
4b1Kr/1pB2pPr/1B2P2k/Q1P1BP1N/2RpBrbr/2nP1n2/1Nr2R2/8 w - - 0 2 illegal: No possible last move
2Kb3B/1n1PB1bR/4pp1R/7Q/1Pr5/1nbbPPk1/1PBN3p/1Bnr2N1 w - - 1 2 legal: proof: h4 d5 c4 b5 cxd5 b4 a3 Ba6 axb4 Bc8 Na3 g5 Nc4 g4 Na3 Qd6 Nb1 Qf4 Na3 Bd7 Nb1 Qg5 hxg5 Bc8 Nc3 Bf5 Nb1 Be4 Nc3 Bf3 Nb1 Bxg2 d4 Kd7 Kd2 Kd6 Kc3 a5 Kc4 h5 Kb5 c5 Kb6 g3 Kb7 e6 f3 h4 g6 h3 g7 c4 Qa4 h2 Na3 f6 Nh3 c3 Nb1 c2 Bh6 c1B Ra3 Nd7 Ra1 Rc8 Ra2 Ne5 Qe8 a4 Rg1 a3 Nd2 Nd3 Qf7 Rc4 Qh5 Ne7 g8B Bg7 Bh7 Nc8 Ra1 a2 Kb8 Nc5 Bc2 Rd8 Bb1 Nd3 Bc2 Bf8 Bg7 Rd7 Bh8 Bg7 Nb1 Bf4 Nd2 Be5 Rc1 a1N Bb1 Bh1 Rg2 Rd8 Ng1 Nb3 Rd1 Ndc1 Kb7 Ke7 d6+ Kd7 d5 Bc3 Rf2 Bg2 Bc2 Bh3 Rg2 Bf5 Bb1 Bg6 Bc2 Ke8 d7+ Ke7 Kb8 Kd6 Kb7 Rf8 d8B Bd3 Kb8 Rf7 Bb1 Ra7 Bc2 Ra1 Be7+ Kd7 Bb1 Nd6 Bc2 Nb7 d6 Kc6 Kc8 Rb1 Rf2 Ra1 Bh3 g2 Bf5 N3c5 d7 Kd5 Re1 Ke5 Rff1 Kf4 e3+ Kg3 Bb1 Be2 Bfc2 Bd3 Nh3 g1B Rd1 Bf2 Ng1 Kg2 Rde1 Bg3 Re2+ Kh1 Rg2 Bc7 Rg6 N5b3 Rh6 Kg2 Ne2 Bf8 Ba2 Rb1 Rh7 Bg7 Rg1+ Kf2 Rg6 Bd8+ Bc5 Ra1 Ng1 Ne2 Rgh6 Rd1 Bab1 Kg3 Rg6+ Rg4 Be7 Nec1 Rgh6 Rc4+
B6R/R3P1NP/B2bp2B/1q3rNP/pkP1n2b/n2npK2/P1p4B/6Qr w - - 0 1 illegal: No proof kernel
2BB4/2B1Pn1r/Np1p2rQ/1kp5/1p2PBn1/p3Pb1P/PR2K2R/4Nnb1 w - - 0 1 illegal: Other
1K2r3/rPqp3B/1B1b1k2/1nRPNq1q/p4N1P/R5Q1/Pb1B3P/bB1bn3 w - - 0 1 illegal: No possible last move
R1Q4B/2bnr1Pp/2k5/P4n2/bp2RR1P/r2q2Kb/BPN2P1n/2R1N1bq w - - 0 1 illegal: No proof kernel
4Bkn1/NbR1n3/P1BPpb1r/2pr4/1q1N4/1QPBPn1r/1P3B2/1nK1r2R w - - 0 1 illegal: No proof kernel
4Bbn1/P1R2pp1/3P1PP1/2rb1n1p/Rrn1k1P1/1R2N2q/3Q1q1N/2KRBq2 w - - 0 1 illegal: No proof kernel
3B4/1Pp2bN1/b1Qp1Nn1/q1P2RK1/1N1PN2P/2rpPr2/R7/1nrBb1kq w - - 0 1 illegal: No proof kernel
2b2B2/rp3Nn1/3Pk3/BBP2pRK/Nnp2P2/bPQBb3/bP3r2/b1R3q1 w - - 0 1 illegal: No proof kernel
1BR3n1/3B2rB/k2bpQR1/1pr1NPqB/3KPP1N/p3r1n1/1P4bP/1b5b w - - 0 1 illegal: No proof kernel
b3N3/n1B1p1pp/r2Q2PP/NrPRKRRB/3RPn2/pn3P2/k3b1b1/1q6 w - - 0 3 illegal: No proof kernel forced: wxDB
BrQ3B1/2N3Nn/2Kbr3/2RPp1p1/qB3Bkp/1p4Pn/bP1qP2P/4nR2 w - - 0 6 legal: proof: c4 e5 a4 Nc6 f4 Nb4 f5 Na2 a5 d5 cxd5 Qf6 a6 Qe6 fxe6 Nb4 Nc3 Nxa6 Nb1 Nb4 Ra5 Na2 Ra3 Nb4 Ra1 Na2 Kf2 Ke7 Ke3 Kf6 Ke4 Kg5 d4+ Kg4 e7 b5 e8B f5+ Kd3 g5 g3 c5 d6 h5 d7 a5 d8B f4 Ke4 b4 Kd5 h4 Qa4 c4 Bc7 c3 Qa3 f3 Bd8 c2 Bc7 f2 Bd8 a4 Bb5 Bd6 Bd2 c1Q Ba5 Rh6 Nc3 Rb8 Nh3 Be6+ Kc6 Nf6 Bf4 Nh7 Bc4 Qd2 Nd5 Nc3 Nc7 Nd5 Qc3 a3 Rc1 a2 Bg2 a1N Rhf1 Nc2 Bh1 Ne1 Qc2 b3 Bb4 Bf5 Qc3 Bb1 Rc2 Ne3 Bg8 Ba2 Qc4 Rg6 Qa6 Rf6 Qc8+ Re6 Rc5 Nd1 Kd7 Qc2 Ba8 Qd3 d5 Qd2 Rh1 f1Q Kc6 Qf3 Rf1 Qf2 Be3 Qf8 Nf4 Nf2 Nh5 Qf4 Ng7 Qfd4 Bf4 Nh3 Rc3 Qa7 Rc5 Qa4+
1nQRBb1r/k3p2N/nr2qp2/pKp5/5PNP/1PB2b1N/b3PP2/4Rq1N w - - 0 1 illegal: No proof kernel
NB1kN2r/4q3/B2nRPrp/1p1P1Q2/2bN2rp/p3NR2/PP4nP/1K3rn1 w - - 0 1 illegal: No proof kernel
3KnQ2/B1r5/1B2ppR1/n1N2PP1/1P2Nq1r/2Br2rp/3qP1pP/Rb3Bk1 w - - 0 1 illegal: No proof kernel
kqN4n/1NP3bn/1rPP1Bq1/5R2/4bR1K/2P2Q1n/n1rQQR1P/6b1 w - - 0 1 illegal: No proof kernel
BK3N2/n1RP2P1/3pBn1k/B2Prb2/2P5/1QrPq3/Nr1Q2b1/N3q2n w - - 0 1 illegal: No proof kernel
3b2Qq/1B3nP1/Pb1K3Q/1rQ5/B2n1p1R/3P3r/3B1qPP/1Rq2qkN w - - 0 1 illegal: No proof kernel
NR4b1/3QPB2/QP1N1B2/1Kp4r/P5N1/Pb4qP/p1kBn2r/2r2nr1 w - - 0 1 illegal: No proof kernel
bB5n/1p2Q3/PP1b1Ppr/2KPq2B/R1Br2rQ/Pr3r2/Q7/4N1kN w - - 0 1 illegal: Other
3b4/PP2r1pP/1P3nK1/nQp1N1rN/Q1B4P/Rr2r3/4b1Q1/N1k1b2R w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 b5 c4 Bb7 cxb5 Ba6 b6 Bc8 d4 c5 b4 Ba6 b5 Bc8 d5 Qc7 Ba3 Qb7 Bb4 Qc6 dxc6 axb4 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 h4+ Kf6 a4 e5 f4 b3 h6 b2 b7 d6 b6 Bd7 a5 Be7 h7 Bd8 c7 Bb5 c8Q Nc6 a6 Na5 a7 Be2 Nd2 b1R Ngf3 Rb3 Qd7 Rc8 Qa4 Rc7 Ra3 Re7 Qb1 Re3+ Kd5 e4 Qbb5 Rb3 Ne5 e3 Ke4 Bc4 Rh3 e2 Rh1 e1B Bd3 Rb4 Nb3 d5+ Ke3 d4+ Ke4 Rf7 Bf1 d3 Na1 d2 Be2 d1R Bf1 Ke7 f6+ Kd6 Kf5 Kd5 Kg6 Kd4 f5 Re7 f7 Be2 f8Q Rd3 f6 Ke3 f7 Kd2 Qfe8 Rdb3 f8N Kc1 Nfd7 Re4 Nf6 Ree3 Nh5 Nf6 Qec6 Rf8 Qce4 Nd7 Qg2 Rf5 Nf7 Nf6 Ne5 Bd1 Bd3 Be2 Bc4 Rg5+
1nR1Q1q1/1n3rBP/2Q2bkn/8/1nKRqP1p/1QP1Rn2/2P1p2P/1B2N3 w - - 0 1 legal: proof: e4 a5 a4 c5 Qf3 h5 Qg4 b5 axb5 f5 Qd1 d5 Nc3 h4 g4 Ra6 Nce2 Rc6 Ng3 Be6 Ke2 Bf7 Ke1 Bh5 gxh5 Rd6 N3e2 d4 Ng3 Rd5 exd5 c4 Ne4 c3 dxc3 fxe4 Kd2 Kf7 f4 e5 b4 g5 h6 a4 b6 d3 h7 g4 b5 a3 b7 g3 d6 g2 b6 a2 d7 Bg7 Qe1 Bf6 Nf3 g1N Ba3 Kg6 Bf8 Nh6 Bg7 Rf8 Rd1 a1N Bh3 Qe7 d8Q Rf7 Qd6 Nb3+ Ke3 d2 Qc6 Qd8 Be6 Nc5 Ba2 Qf8 Qe2 Qg8 Ne1 Nf3 Bb1 Ng5 Qc4 Nf3 Ke2 e3 Qb3 e4 Rf1 Nba6 b8Q Nb7 Qbe8 Nb8 Rc1 d1N Rh1 Nb2 Rd1 Nd7 Rd4 Nd3 Rf1 Nb4 Rg1+ Kh5 Rg3 Nb8 Rh3 Nd8 b7 Kg6 Kd1 e2+ Kc1 e3 Kb2 Nd7 b8R Nb7 Rc8 Nb8 Ka3 Qh8 Ka4 Qf8 Kb5 Qg8 Nd3 e1Q Kc4 Qh1 Ne1 e2 Rg3+ Ng5 Rgd3 Qe4 Re3 Nf3
3n1k2/1P5R/1Q3qQq/1q1p2p1/K1R2PNN/PN1qB1Q1/nb1P2Pq/7r w - - 1 2 legal: proof: c4 b5 cxb5 a5 h4 g5 b4 Ra6 bxa5 Rb6 h5 Rg6 hxg6 f5 e4 d6 e5 Kd7 Bd3 Ke6 Bc2 Kd5 e6 Bd7 exd7 Ke6 Be4 fxe4 f4 c5 a6 h5 a7 h4 a8Q d5 g7 Kf7 b6 e5 b7 e3 a3 e2 Rh2 e4 Bb2 c4 Rh3 c3 Rh2 h3 Bc1 c2 Bb2 c1Q Nf3 Ne7 g8N Nbc6 Bd4 Nb4 Qa6 Nec6 Be3 Na2 Nh4 Qc5 Qb3 Bg7 Nf6 Kf8 Ng4 Qf6 Nc3 Nd8 Rc1 Rh6 Rh1 h2 Nb5 Rh7 Rc2 Qh6 Qb6 Bb2 Rc4 Rh8 Qg6 Rh7 Rf1 h1Q Nd4 Qh2 Qc3 Qe7 Nb3 Qf6 Rh1 Rh8 Ba7 Rh7 Qg3 Rh8 Kf2 e3+ Kf3 e1Q Bb6 e2 Ke3 Qeg1+ Kd3 e1Q Kc2 Nc6 d8Q+ Qe8 Qc7 Nd8 Be3 Qb5 Qb6 Rh7 Na1 Qc5 Kb3 Qf1 Ka4 Qd3 Nb3 Re7 Bf2 Re1 Bd4 Qg1 Rh3 Qh2 Be3 Rh1 Nf5 Qhg7 Rh7 Qgh6 Nh4 Qb5+
rk4n1/2n1r3/R2K1Q2/3qN3/2PB2Pp/1NpQQ3/n1PP1P2/rNn2r1B w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bh6 a4 Bg7 a5 Bf6 Bc4 Bd4 Bf1 Bb6 axb6 Kf8 Rh5 Kf7 Rh1 Ke8 b3 c5 b7 d5 Ra6 c4 Rg6 c3 Re6 Bd7 Re4 dxe4 Qg4 Be6 Qd1 Bc4 bxc4 Qc7 Rh2 Qb6 Rh1 Qd8 Ke2 Kd7 Ke3 Kc7 Kf4 a5 Ke5 h5 g4 a4 g6 e3 g7 h4 f6 b4 f7 a3 f8N e2 Nh7 e1N Qf3 b3 Qd3 a2 Nf6 a1R Ne4 b2 Nf3 Na6 Bg2 Rh7 Nc5 Kb8 Nb3 Nc7 Rf1 e6 Bh1 Qg5+ Kd6 e5 Rg1 e4 Ne5 e3 Rf1 e2 Rg1 Nh6 g8Q+ Qd8+ Kc5 Rf7 Qg7 Ng8 Qf6 Re7 Qe3 Qd3 Kc6 Qf5 Kd6 Nd3 Re1 Nb4 Rf1 e1N Qd3 Ka7 b8Q+ Ka6 Qbf8 Ka7 Q8h6 Kb8 Qhe3 Qg5 Na3 b1R Rg1 Rb2 Nb1 Rba2 Rf1 R2a7 Rg1 Na2 Ba3 Rb7 Bc5 Qf5 Qde2 Nd3 Bd4 Ndc1 Q2d3 Rb5 Rg3 Qe4 Rf3 Rb7 Rf5 Rba7 Rg5 Qf5 Rg6 Qd7+ Kc5 Qd5+ Kb6 Ne2 Qff4 Nb4 Na3 Rc1 Nb1 Rf1 Qff5 Qf3 Kc5 Ra1 Ra6 Nc1 Kd6 Nba2 Qf6 Qd5+
B2NnB1r/p3p2n/1qBPP1p1/2b1QN2/8/1P2NK1Q/qRPP1r2/n5k1 w - - 0 1 legal: proof: g4 g5 b4 c5 bxc5 d5 cxd6 Bh6 f4 Qb6 fxg5 Na6 g6 Kd8 g5 Bf8 g7 Nf6 g8B Ke8 g6 Qd8 g7 Nb8 Ba3 b5 Bb4 Ne4 Nh3 Be6 Bc3 b4 Na3 Nc5 Ng1 Nb3 Bb2 Bd5 Rb1 Na1 Bc1 Be6 Rb3 Bc4 Rc3 b3 Rg3 b2 Rg6 Bb3 axb3 hxg6 Kf2 Kd7 h4 Ke6 e4 Ke5 h5 Kf4 e5 b1N h6 f5 h7 Qc7 Qh5 Na6 Nc4 Nc3 Bb2 Nd5 Nf3 Nf6 Bg2 Qb6+ Nd4 Nc7 B8d5 Rg8 h8N Nh7 Nf7 Rh8 g8Q Bh6 Qh3 Rf8 e6 Ne8 Ba8 Bg5 Bgd5 Bh4+ Ke2 Bf2 Bdc6 Be3 Nd8 Rf7 Qf1+ Kg3 Qg7 f4 Rg1+ Kh2 Qf3 Nhf6 Rb1 Nh7 Bc3 Rff8 Rb2 Kg1 Qh3 Rf6 Nf5 Bd4 Nh6 Bc5 Ne3 Rf7 Bf6 Rff8 Bg5 Rf5 Qe5 f3+ Kd3 f2 Ke4 Rf3 Nhf5 f1Q Bh6 Qfa6 Bg7 Rf2 Bf8 Rg2 Kf4 Qa2 Kf3 Rf2+
Q2bR1nN/KQ4p1/Nn2r2P/5Rq1/1Pn3Pp/4N2R/kn3pPP/1n4B1 w - - 0 2 illegal: No proof kernel
3k4/QRnP3r/Q3P3/qq1Nnp1r/1b2bP2/3N2b1/Q1PB1PNR/r1nK4 w - - 0 1 illegal: No proof kernel
2QB3r/R2q1Q2/2pb1P1n/2PbNP2/K3n3/3Bq1PB/2b1r1RP/1kr1Qq2 w - - 0 1 illegal: No possible last move, all moves rejected
BnrkN3/P4pbr/r2K2QB/4rR2/1P2bQ2/PP3qB1/4rP1n/R2Q2b1 w - - 0 1 illegal: Other
2kr2R1/4PP1p/1QbRRq2/2Q2PrP/2B2Kn1/1nQ2rN1/5b1P/B1r2bn1 w - - 0 1 illegal: No proof kernel
2Qb1K2/rP1N2Pr/1P2rP2/4qb1N/b2n4/k1B1rQpn/2Q2qPN/4R2B w - - 0 1 illegal: Other
4nb2/1NRR1r2/1q2Q3/1bp2Q2/P1qr1bPn/BQP2Pk1/R1P1b3/r2B3K w - - 0 1 illegal: No proof kernel
N7/k2BbNq1/p2P2n1/1b3R2/Q1Qq4/PPbRP2r/2PQ1r2/1rKn1r1N w - - 0 1 illegal: No proof kernel
b1BQ1r1R/3q3p/N4bkb/r1N1Q3/PQ1p2P1/1nN2r2/nP1PK2P/1n2B3 w - - 1 2 illegal: Other
2Q1RbN1/2bp1b1P/1PQ1p2K/2rPPq2/1Bq1k3/1n1r3n/2RP4/R2QNr2 w - - 0 2 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c6 c4 Qa5 Bh3 Ba6 fxg5 Qa3 g6 Qd6 g5 Qd5 cxd5 Bc8 Bg4 hxg4 Kf2 a5 Kg3 f5 Kf4 g3 e4 e6 h4 Ke7 b4 Kd6 h5 a4 b6 g2 b7 a3 h6 c5 g7 c4 h7 c3 b5 c2 b6 a2 g6 Nc6 Kg5 Ke5 b8R f4 Kh5 f3 Nh3 g1B Rh2 f2 Kg5 f1Q Na3 Nd4 Nf2 Nh6 g8Q Ng4 g7 Nb3 Rg2 Bh2 Rg1 Ba6 Re8 Be2 Rg3 Kd4 Rc3 Bc7 e5 Ra6 Bb2 c1Q Ne4 Nf2 Nf6 Nh3+ Kh6 Bh5 Rc2+ Kd3 Bc3 Qf5 Bb4 Bf7 Nb5 Ra5 Nd4 Rc5 Nf3 Rc3 Ne1+ Kd4 Ba5 Rg3 Bb4 Rd3 Rb2 Qc4 Rc2 Be7 Qf8 Bc5 Ng8 Ke4 Qe7 B5d6 Qd8 Bc5 Qa8 Bf8 Rb1 a1R Qc6 Ra5 Ra1 Bfd6 Ne7 Rf8 g8Q Rc5 Qg7 Rg8 Qh8 Rg1 Ng8 Rf1 Qf6 Kf4 Qd8 Ke4 Qc8 Bf8+
1qr3Q1/KpP1N2P/4q3/2R1p1RP/QB2P1n1/P1N3b1/1Rrqb1kr/n1N5 w - - 0 1 illegal: No possible last move
N1rb3q/1Nnk4/KQ1q1p2/3PbR2/1PPP1Pb1/n2r3Q/p1BRQ2N/3r4 w - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 gxh5 d5 exd5 c4 axb5 c3 b3 Nc6 Ba3 Nb8 Bb2 cxb2 Ke2 e5 Kd3 a5 Kc4 g5 d4 g4 f4 e4 h4 g3 b6 a4 Kb5 a3 c4 e3 b4 g2 h6 a2 b7 e2 h5 e1B h7 Ra3 h6 Qd6 Qe2+ Ne7 Nf3 g1Q Nc3 b1R Na4 Bh4 Nb6 Qdg6 Na8 Na6 b8Q Kd7 Qb6 Nc6 Nh2 Rd1 Rb1 Qh5 Rb2 Bd6 Rd2 Qgg6 Rg1 Bb8 Rg5 Qd6 Rf5 Bd8 Bh3 Re8 h8Q f6 h7 Rd3 Bg2 Rf8 Be4 Na7+ Ka5 Re3 Bc2 Nc7 Qg8 Qh6 h8N Rd3 Qgg2 Nab5 Nf7 Na3 Qh3 Qh5 Ng5 Qh8 Ne4 Ke8 Nc5+ Be6 Nb7 Kd7 Rg5 Bg4 Re5 Be7 Rh5 Rc8 Rf5 Bd8 Qhf1 Ne8 Qe5 Qdf8 Qee2 Be5 Ka6 Qd6 Qh3 Nc7+
1n2K2k/B1R1P3/1bNq4/2p3p1/1RPnr1R1/1PqQ2QP/2Q1nrP1/2b1r1N1 w - - 0 2 illegal: No proof kernel
Q2Bb1r1/Kb1p1N1k/p2PP2r/1n1PP3/B1qQR3/3Q4/1N1Pr1r1/b1N3n1 w - - 0 1 illegal: Other
1K5n/p1r3r1/4b1P1/PkNN4/b3QQ2/b2pP1N1/2PR1PbB/1q1Rrn1R w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 f5 b4 e5 bxc5 f4 Kd2 f3 dxe5 Bg7 e3 Bf8 Be2 fxe2 Kc3 e1R Kd4 b5 Kd5 h5 g4 h4 a4 b4 e6 b3 c6 h3 e7 b2 Kd6 h2 a5 Na6 g6 Rh7 g7 Nh6 g8Q Rg7 g5 Qb6 g6 Nc5 Qe6 Nb3 Qe4 Nd2 Nc3 b1B Bb2 Nf1 Na4 Ba2 Qdg4 Be6 Be5 Qb1 Kc7 d5 Ne2 d4 Ng3 Bcd7 Nc5 Nf7 Qgf4 Nh8 Bd6 Rb8 Be5 Rb4 Bd6 Rc4 Be5 Qc1 Kb8 Rc3 c7 Ba4 c8N Qb1+ Nb6 Rc4 Nb3 Rc7 Nd5 Kd7 e8R Kc6 Rd8 Ba3 Bd6 Kb5 Nc5 Qb3 Rd1 Qb1 Rg1 h1B Rd2 Nf7 Rh8 Bg2 Rhh1 d3 Be5 Rc1 Bd6 Nh8 Be5 Nh2 Rgd1 Nf1 Qff5 Qb2 Re1 Rgd7 Ne2 Rg7 Bh2 Bg8 Qff4 Be6 Ng3 Ra1 Rb1 Qb3 Rb2 Re1 Rb1 Qb2 Rbd1 Qb1
b3n2N/R1pNq3/b3P1BP/P2k1rn1/4n2r/2P1QRb1/K1p1NP1R/Q5b1 w - - 0 1 illegal: No proof kernel
1N5r/Q1bp2nQ/KrPn2n1/1RP3kn/b1P5/BRP1R1r1/3PBp2/q3B3 w - - 0 1 illegal: Other
5rbQ/P1N1P2Q/5rpR/BqP4p/b1NRNk1q/3n1b2/1n1bP2P/5RK1 w - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 f5 dxe5 c6 g4 Ra7 gxf5 Be7 Bg2 Ra8 Be4 Bd6 Bd3 Bf8 Bb5 cxb5 Kf1 Kf7 f4 h5 a4 d5 c4 g6 e6+ Kf6 a6 d4 a5 d3 c5 d2 a7 b4 a6 b5 Ra4 b3 Nf3 b4 Ra2 b2 Kg1 b3 Ra1 Ne7 Nc3 b1Q Ra4 b2 Rd4 Nec6 Ne5 Nb4 Nc4 Bh6 e7 Nd3 Qb3 d1B Bd2 Nd7 Qa2 Rb8 a8N N7e5 a7 Be6 Nc7 Bg8 Qa1 Rb6 Ne4+ Kf7 f6 Ba4+ Be1 Qe8 f5 Bd2 Qa2 Qb5 Qb3 Qd1 Qc3 b1B Qc1 Bb4 Qh6 Qb3 Bc3 Nb2 Bd2 Qh3 Be1 Rh7 Bc3 Rg7 Qh7 Qh4 Be1 Ned3 Bc3 Ba3 Ba5 Rd6 Kg2 Bbc2 Rf1 Bb4 Kg1 Bd2 Na6 Ke8 f7+ Kd7 f8R Rf7 f6 Ke6 Rc8 Rf8 f7 Bf4 Rb8 Kf5 Nc7 Rf6 Rbd8 Kg4 Rc8 Bd2 Rcd8 Re8 f8Q Bcb3 Qfg7 Ref8 Qgh8 Ba2 Ncd6 Baf7 Nc4 Bd5 Qh6 Nc1 Q8g7 Bh7 Ng5+ Be4 Re8 R8f7 Rh8 Bg8 Rh7 Rf8 Qh8 Ncd3 Q6g7 Rf4 Rh6 Bf3 Ne4 R4f6 Qgh7 Kf4
1Qq1Q3/q4n1P/B1P1p1b1/1pPb2N1/1bk2b1B/4P2P/1Kr4B/1nRQ2Nr w - - 0 1 legal: proof: d4 a5 b4 f5 bxa5 h5 g4 c5 dxc5 Na6 gxh5 Nb8 a4 f4 e3 f3 Ra3 Kf7 Rd3 Ke8 Rd2 Nh6 Re2 fxe2 Kd2 Ng8 Kc3 Kf7 f4 Ke6 a6 e1Q+ Kb3 d5 c4 g5 a7 b5 c6 g4 a5 g3 a6 d4 h6 g2 h7 d3 Qe2 d2 Kc2 d1B+ Kb2 Nf6 Nd2 Bc2 Ndf3 Nd5 Qd1 Nc3 Bd2 Bg6 f5+ Kd6 Be2 Kc5 Ng5 Nd7 Bg4 Nb1 Bh3 Qh4 Be1 Ne5 Bg3 Qe4 Bh4 Be6 Bg4 Bd5 h3 Qc8 f6 Rg8 Bd7 e6 f7 Be7 f8B Nf7 Bg7 Qd3 Be5 Qd4+ Kc1 Kb4 Bh2 Qb6 Kb2 Bd6 Ne2 g1B c5 Bf2 Rf1 Be1 Ng1 Bd2 Re1 Kc4 Rf1 Bb4 Re1 Qe8 Bc8 Bf4 Bb7 Rd8 a8Q Qa7 Qb8 Rd6 Rf1 Qc8 Re1 Bh1 Rf1 Rd3 Re1 Rc3 Rf1 Qa8 a7 Bd5 Ba6 Qab7 a8Q Qa7 Re1 Rf8 Qab7 Nh6 Qf7 Bc7 Qc1 Bg3 Qe8 Rf1 N1f3 Rh1 Ng1 Bf4 Qd2 Nf7 Rc1 Bd3 Qc2 Bg6 Qd1 Rc2+
8/2Pr2R1/1QR1NB1Q/q3n3/1Qp3P1/prP1nkbK/P1qq1PR1/2nq3B w - - 0 1 legal: proof: e4 f5 b4 c5 h4 g5 hxg5 e5 d4 b6 b5 Bb7 Na3 Bc6 bxc6 Qe7 Nb1 Qf6 Nd2 Ke7 dxe5 Ke8 e6 Qe7 e5 Qd8 Ne4 fxe4 g4 Ke7 c3 h5 g6 a5 g7 d5 c7 h4 Bg2 d4 Kf1 a4 Bh6 c4 Qe1 h3 Rd1 b5 Qe3 a3 Rd2 b4 Rd3 h2 Qe1 b3 Nf3 e3 Bf4 b2 Bg5+ Nf6 g8Q b1Q Bh3 e2+ Kg2 Nd7 Qg1 Rb8 Qc1 Rb3 Rg1 Qc2 Qg6 e1N+ Kg3 h1Q Bg2 Qh5 Bh1 Rg8 Rg2 Rg7 Re3 d3 Nd4 d2 Bh4 d1Q Kh3 Rg8 Qb1 Bg7 Qh6 Nd3 Rf3 Bh8 Rf5 Nc1 Rg5 Rf8 Rg7+ Rf7 Qb2 Qg5 Qb1 Nd5 Qb2 Ke8 e7 Ne3 Ne6 Qa8 Qb1 Qa5 Qb2 Qf4 Bf6 Qfd4 Qb1 Q4d2 Qb2 Nb6 Qb1 Kd7 e8R Kc6 Rb8 Nd7 Rb6+ Kd5 Rc6 Ke4 Qb2 Rb5 Qb4 Re7 Ng5+ Kf4 e6 Rb8 Qb6 Ne5 Qb4 Rd7 e7 Rb7 Ne6+ Kf3 e8Q Rb5 Qb8 Rb6 Q4f8 Rb1 Qb6 Rb3 Rg5 Bg7 Qfb4 Bf8 Rg7 Bd6 Kh4 Ned3 Kh3 Bg3 Bg5 Ne5 Bd8 Qa8 Bf6 Qa5
3q1K1n/3Q4/Bb3pP1/2R3rp/1Q1qPqb1/1NB2PPP/1nB2k2/b1NQq3 w - - 0 1 illegal: No proof kernel
1NQN3r/pn4np/2R1Pn1n/1K1P3q/PBP1rQNn/3B2nP/6kb/3B4 w - - 0 1 legal: proof: e4 d5 exd5 g5 b4 c5 bxc5 e5 a4 e4 f3 Bf5 Ra3 Bg6 Rb3 e3 Rb4 Bf5 Rf4 Be4 fxe4 gxf4 Ke2 Kd7 Kd3 b5 g4 f5 c4 e2 g5 e1N+ Kd4 b4 g6 f3 e5 b3 g7 f4 d6 Ke6 d7 Kf5 c6 Kg4 c7 b2 c8Q Qe8 d8N+ Nd7 Na3 b1N Nh3 Ng2 Bd3 Nc3 Nb5 Nh4 Qf1 f2 Ba3 Kf3 Bb4 Ne4 Nc7 Nh6 g8B Ndc5 Be6 Qh5 Na6 Nb7 Nb8 Bd6 Rg1 Bc7 Rg6 Nf6 Qc1 f1N Bg4+ Kg2 Bd1+ Ng3 Nf2 f3 h3 Re8 Ng4 f2 Kc3 f1N Kd4 Na5 Kc5 Nb7+ Kc6 Ngf5 Kb5 Nfg8 Rc6 Nf6 Nf7 N1g3 Nd8 Rh8 e6 Ng7+ Bf5 Rf8 d4 Rf7 Qf4 Rd7 Rc5 Rd5 Bb1 Re5 d5 Re4 Bd3 Bb6 Rc6 Bg1 Qd7 Bh2 Na6 Rc8 Nb8 Rc7 Qc8 Re7 Ba5 Re8 Bb4 Rh8
Qrk4K/Q1bp4/1p2NBnn/1BrP3n/R1bPpBQ1/2P1P2b/5q1P/5N2 w - - 0 2 illegal: No proof kernel
3r4/5q1k/1NKQRnRb/2Pb3P/n1R1P3/Bpp3QB/p1PB1P1q/1q2r3 w - - 0 1 illegal: No possible last move
B1N1B3/1bRQ1p1p/5bP1/nP2BPkP/Q3r3/1rb1p2q/5nPN/1q1QK3 w - - 0 2 illegal: No proof kernel
r5Q1/kP2QP1p/2Rqp1P1/Bq6/q2Nrb2/n1p1P1B1/KP1R4/nB4Qb w - - 0 1 legal: proof: h4 d5 c4 f5 cxd5 g5 hxg5 b5 a4 f4 axb5 f3 e3 Bb7 Nc3 Qc8 Nce2 Qd7 Qb3 Ba6 Kd1 fxe2+ Kc2 Bb7 Kc3 Qc8 Qd1 Qd8 Kc2 Bc8 Kb3 Kd7 d4 e1Q f4 a5 g4 c5 g6 Kc7 b6+ Kb7 f5 e6 g5 a4+ Ka2 a3 g7 c4 f6 c3 f7 Qd2 d6 Ne7 g8Q Qe8 d7 Bg7 d8B Qb5 d5 Ra4 d6 Na6 d7 Ng6 Nf3 Bh6 Rh2 Qd6 Nd4 Nc5 Bd2 Ne5 g6 Bf4 Be1 Nb3 Bg3 Nc4 Bd3 Ka8 Be4+ Bb7 Bb1 Bh1 b7+ Ka7 Qg1 Rb4 Ba5 Ra4 Qg7 Ra8 d8Q Rb4 Qgg8 Ra4 Bc2 Rb4 Rd1 Na1 Qe7 Ra4 Rh5 Rb4 Rc5 Ra4 Rc6 Rb4 Kb1 a2+ Kc1 Na3 Bb1 N1c2 Rd3 a1Q Rd2 Qa2 Qf6 Na1 Qe7 Nc4 Bf5 Qaa4 Kb1 Na3+ Ka2 Rc4 Bb1 Rb4 Nc2 Re4 Nd4 Qbe5 Rc8 Qf5 Rc6 Qfb5
1K6/8/1p3r1N/Rpp1QBqR/PP1nQP2/nQB3kb/qPPbnR2/7q w - - 0 1 illegal: No proof kernel
bN6/q7/p1pRQRP1/Pk2P1Qr/3pb1b1/q1PPB3/1b4KN/2Rrn2Q w - - 0 3 legal: proof: f4 g5 h4 e5 hxg5 a6 fxe5 Bd6 b4 Nf6 b5 Bf8 b6 Ng8 a4 Nc6 e3 Na7 bxa7 b5 a5 Rb8 Bc4 Ra8 Bb3 Bh6 Ba4 bxa4 Nc3 Bg7 Nb1 Bf8 Kf1 d5 g4 Kd7 c3 Kc6 e4 h5 g6 f5 g5 h4 g7 h3 e6 f4 e7 a3 e8R h2 g6 a2 e5 f3 Kf2 Ne7 g8Q Kb5 Bb2 Rh5 Qe6 Nf5 Qc1 Qe7 Rd8 Nh4 Rd6 d4 d3 Rb8 Kf1 f2 a8Q Nf3 Nd2 c6 Nc4 Qa7 Kg2 Bb7 Nb6 Be7 Rb1 a1Q Qg5 Qa3 Rf1 Rf8 Qb8 Ba8 Bc1 Rf4 Qc7 Re4 Qb7 Re1 Be3 Rd1 Qbc8 Bf8 Nd7 Be7 Qh8 Bf8 Nb8 Be7 Re1 f1B+ Kg3 Bh3 Rf1 Bg4 Kg2 Nd2 Rf6 Nf3 Ne2 Bf8 Ng3 Bh6 Rg1 Bf8 Nf1 h1B+ Kf2 Nh4 Qh7 Be4 Nh2 Nf3 Kg2 Qc1 Rd8 Ba3 Rd6 Bb2 Qh8 Qa1 Qhh6 Rb1 Rc1 Qa3 Qh4 Ra1 Q6g5 Rb1 Qe1 Ra1 Qh1 Rb1 Rc2 Rd1 Rc1 Ne1+
1r6/3Nqb2/Ppr1P1BQ/QPpr1pb1/K2kpBn1/6N1/2P1bP2/1R2N1B1 w - - 0 3 legal: proof: b4 d5 a4 a5 g4 e5 d4 h5 gxh5 e4 b5 Nc6 e3 Ne5 dxe5 d4 exd4 Bg4 d5 Bh3 Ra3 Be6 Rb3 Bc8 Rb4 axb4 Kd2 Ke7 h4 c5 a5 g5 e6 Kf6 d6 Ke5 d7 f5 h6 b3 Kc3 b2 Kb3 g4 h7 g3 h5 b6 h6 g2 a6 Rb8 Nd2 b1B Be2 Qf6 d8N Qg5 Nf1 Ne7 Bh5 Qg4 Ng3 Qh4 Ka4 Ba2 Bg6 Bc4 Qe1 Nc6 Nf7+ Kd4 Ne5 Qe7 Qa5 Bd7 Bf4 Be8 Nd7 Rg8 h8Q+ Ne5 h7 Be2 Qg7 Bf7 Qh6 Ng4 h8B+ Bg7 Bh5 Rbc8 Bg6 Bf6 Bg7 Rc6 Nf3+ Kd5 Rf1 g1R Rb1 Rd1 Ne1 Bg5 Bge5 Rb8 Nf1 Qf6 Bh2 Qg7 Bef4 Kd4 Ng3 Qf6 Bg1 Qe7 Qg7+ Kc4 Qh8 Rd5 Qh6 Kd4
BR4B1/1pP1QPpp/4p1n1/P1b4Q/q2R2P1/1n2K2P/r2R2n1/Bk1b2bN w - - 0 1 illegal: No possible last move
1Nb2Nr1/N4q1n/RP1Pp3/Qb1rP3/2np1q1p/K4Q1P/2kP4/R2qb1BQ w - - 0 1 illegal: No proof kernel
1kr3nQ/R2nbqPQ/p4pp1/KP1r1PN1/P3RqBN/8/3QR1P1/qbr5 w - - 0 1 illegal: No proof kernel
7k/2p1p3/B2PPNQ1/qR3KR1/q1P2n1p/rN1Qb1P1/3qbrQP/1n1Nq3 w - - 0 1 legal: proof: c4 d5 f4 g5 fxg5 b5 a4 d4 axb5 Bh6 b3 Bg7 Bb2 Bf8 Bc3 dxc3 Kf2 a5 Kf3 f5 Kf4 Kf7 e4 Kg7 d4 h5 d5 a4 e5 c2 e6 c1Q+ Nd2 a3 b4 h4 b6 a2 b5 Nd7 g3 Nb8 g6 Ra3 b7 Nf6 b6 Nc6 b8N Qc3 b7 Nb4 Bg2 Nc2 Ne2 Qa5 Nb3 Nh5+ Kg5 f4 Kf5 f3 Nd7 f2 b8Q Ba6 Qd3 Nf4 Qa8 f1Q Nc3 Qe1 Nd1 Bb7 Nf6 Rh6 Rf1 Kh8 Rb1 a1Q Rf2 Rh7 Re2 Qd7 Re5 Rf7 d6 Qa1c3 Bc6 Qcd2 Bb5 Bf3 Ba6 Be2 Qg2 Bh6 Rb2 Ra1 Rb5 Na3 Ra2 Nb1 Ra3 Qab4 Raa5 Ra3 Rb7 Ra4 Ke5 Nd5 Ne4 Rf1 Nf6 Ra3 Rc5 Qda4 Rbb5 Nb6 Ke4 Be3 Rg5 Nd5 Ke5 Kg7 Ke4 Nf4 Kf5 Kh6 g7 Rf2 g8Q Qbc3 Qe8 Qca5 Ng4+ Kh7 Qg6+ Kh8 Nf6 Bf3 Ne4 Bh5 Nf6 Be2
3nr3/p2pb2b/3P1pPR/rB2rP1p/B2Q1P1k/1rNNn2P/K2BQ1Q1/3q4 w - - 0 1 illegal: No proof kernel
2n4n/k1pbr1P1/2n4R/2R1Qp2/1RK1qrn1/b1pP1PNp/1NP2B1P/4Q2Q w - - 0 1 illegal: No proof kernel
2QK1Q1R/pPN5/4r1r1/PB1pb1pR/2p1qPn1/n1PP3R/b3pn2/3kB2Q w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 g4 Ba6 gxh5 Bb7 a5 Ba6 Nc3 Bc8 Na4 bxa4 Ke2 Kf7 Kf3 Kf6 Kf4 c5 b4 d5 h4 a3 b5 a2 h6 Nd7 h5 Ba6 b6 Qe8 b7 Bc4 h7 Nh6 c3 Ng4 h6 Rg8 h8R Nde5 h7 e6 f3 Bd6 Ne2 Nf2 Rh3 g6 Rb1 a1N Nd4 Nc2 Nb5 Ba2 Nc7 Na3 Bb5 c4 d3 Qe7 Ra1 Rae8 Bd2 Rg7 Be1 g5+ Kg3 Rgg8 f4 Rg6 Qf3 Neg4 Qh1 e5 Rb1 Kf7 f6 e4 Rd1 e3 Rd2 Nd1 Rdh2 Ndf2 Rh5 Be5 R2h3 Rgg8 Kf3 Kg6 f7 Kf5 Kg3 Rg6 f8Q+ Qf7 Kf3 Ree6 Kg3 e2 Kf3 Nh2+ Ke3 Kg4 Qc8 Qf5 Qf8 Bd6+ Kd4 Be5+ Kc5 Qe4 Qc8 Bd6+ Kc6 Be5+ Kd7 Re8 Rh6 Ree6 R3h5 Kg3 Kd8 Ng4 Rg8 Qg2 h8Q Kf3 Qf6 Ke3 Rgh8 Qe4 Qf8 Nd1 Bf2+ Kd2 Be1+ Kc2 Rh3 Ndf2 R6h5 Kd1
1qnr3B/1Pr5/KRpRPP1P/1NP4B/nk6/qnp1N3/1R2n2N/2B2q2 w - - 0 1 legal: proof: e4 d5 g4 b5 c4 h5 gxh5 b4 c5 b3 Qe2 Nd7 Qc4 dxc4 axb3 Nb6 b4 Nd7 b5 Nb8 Ne2 f5 Ng1 Bb7 e5 Be4 f3 e6 Bh3 Be7 Bg2 Bf6 exf6 e5 Bh3 Bd5 Bf1 e4 Ra5 e3 Ra1 Be4 fxe4 Qd5 Ra5 Qd4 Ra1 Qd8 Ke2 Kd7 b4 g5 h4 a5 d4 g4 b6 Kc6 e5 Kb5 b7 c3 Kd3 g3 e6 f4 d5 e2 h6 e1Q h5 a4 h7 a3 d6 a2 d7 g2 h6 f3 Nd2 f2 Nc4 Qe7 d8R Ra4 Be2 f1N Rd6 Qd7 Rb1 a1Q Ne3 Qe8 Bh5 Ra7 Nf3 g1N Rh2 Ne7 Rhb2 Nd2 Nh2 Nd7 b8N Qa3 Nc6 Nb6 Nd4+ Ka4 Nb5 Qb8 Kd4 Rd8 h8B Nec8 Kd3 Na8 Kd4 Nb3+ Kc4 Rb7 Nd4 Qf2 b5 Ne2 b6 Qf1 Nb5 Ra7 Kd5 Kb4 b7 Nab6+ Kc6 Ra8 Ra2 Qb2 Ra6 Qa3 Rb2 Na4 Rb6 Qa7 Rdd2 Nd6 Ra6 Rd7 Rd1 Rad8 Rd5 Nc8 Rd6 Qb8 Rb6 Qa1 Na7+ Ka3 Kb5 c6+ Ka6 Rc7 Nb5+ Kb4 Nc4 Qa2 Ne3 Qa3
2r1N3/1rBRqbbP/1RRNb1k1/1p1B2n1/2Br4/1P1P1nPN/2K2b1P/7n w - - 0 1 illegal: No proof kernel
R7/1nb5/q1rP1n1P/pR1N2r1/2Bnp1BB/PK1bPqN1/5P1k/1R4rN w - - 1 2 legal: proof: c4 c5 b4 f5 bxc5 d5 cxd5 h5 g4 Qd6 gxf5 Qd8 Qa4+ Bd7 Qc4 Bc8 Qg4 hxg4 Kd1 Kd7 Kc2 b5 d4 g5 h4 a5 f6 e5 f7 b4 e3 b3+ Kb2 e4 d6 Ke6 a3 Kf5 h5 g3 h6 Kg4 c6 g2 c7 Nc6 d7 Qf6 d8R Bd6 f8N Ra6 Be2+ Qf3 d5 Nf6 Rh5 Rg8 Nh7 Rg6 Rf8 Nd8 Nc3 Rc6 Rb1 Ba6 Bc4 Nb7 Nge2 g1N Ng3 Ne2 Nh1 Nd4 Ne2 Rg7 Kc3 b2 Ra8 Bh2 Neg3 Rg8 Ra1 b1Q Bb2 Qf1 Rb1 Rg7 Nf5 Q1e2 c8B Bc7 d6 Qf1 Nf8 Q1e2 Nd7 Qf1 Nfg3 Bb5 Rh2 Rg8 Rg2 Kh3 Nb6+ g4 Nd5 Rg5 Ba1 Ba6 Rb5 Q1e2 Rg1 Kh2 Rgb1 Qf1 Ne2 g3 Bg4 g2 Neg3 Ne6 Kb3 g1R Be5 Nd4+ Ka2 Rh5 Bf4 Qd3 Bg5 Qf1 Bh4 Rg5 Kb2 Nh7 Ba2 Bb6 Rb4 Bc7 Bb3 Qb5 Ka2 Qb6 Kb2 Bc4 Rb5 Bd3 Bc4 Nf6 Kc3 Qa6 Kb2 Nc2 Kb3 Nd4+
N2b3K/1PP2b1N/1n1nkPP1/nP3nBB/7Q/2bR2qN/1r1nr3/N5N1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f4 g5 fxg6 h6 f5 h5 g4 Bg7 b4 Qc7 g5 Qd8 Ra3 Bh6 Rg3 Bf8 Rg4 hxg4 Ke2 e5 Ke3 Ke7 Ke4 a5 c4 g3 h4 d6 h5 a4 h6 g2 g7 a3 h7 a2 g6 a1N b6 Nd7 c6 Qc7 b5 Ra2 b7 Nb3 c5 Nb6 Be2 Be6 Nd2 Bf7 Bh5 Rb2 Rh3 Nh6 Qe1 Na5 Nb3 Kf6 Qb4 Be7 Rd3 Bd8 Na1 Re8 h8N Qb8 c7 d5+ Kf3 d4 Ke4 Ke7 c8N+ Kd7 g8N Qc7 Rc3 d3 Bg5 d2 Rd3+ Qd6 Qc4 d1N Qd4 Ne3 c6+ Kc7 Qa4 Nec4 Nf6 Qa3 Nh7 Nd6+ Ke3 e4 Kf4 e3 f6 e2 Qb4 Bb3 Nf7 Nhf5 Qe1 Re6 Qh4 e1B Kg4 Bc3 Kf4 Nbc4 Nb6 Ree2 Kg4 Kb8 Na8 Nb6 Bd2 Bd5 Nfg5 Bf7 N5h3 Qb3 Nf3 g1N Kg5 Ne7 Kh6 Qa3 Kg7 Nef5+ Kh8 Qb3 Ne5 Nf3 Bg5 Nd2 Ng4 Qb4 Ne5 Qg4 Nf3 Qg3 Nfg1 Nbc4 Nb6 Kc7 Re3 N6e4 Rf3 Kd6 c7 Ke6 Na8 Nb6 Rd3 Ned6
2n3B1/2Q1PRrP/PB1bn1N1/2R4K/2b3P1/3r2PB/b1n1p1rn/1B1k1B2 w - - 0 1 illegal: No proof kernel
n6Q/KPN5/PN1R4/nppB3b/P3p3/1r2NNk1/Pb1N2P1/qR3n1r w - - 0 1 illegal: Other
1q2r1q1/2N2K1P/npNP3B/B3B1P1/npR3Q1/p3p1P1/B3Pk2/r4B1r w - - 0 1 illegal: No proof kernel
2r2R2/PPpN2BB/3QbP2/b1P3n1/3N1r2/N1brk1n1/1rPq1q2/NN4K1 w - - 0 1 illegal: No proof kernel
2QRBrN1/1pKqp2P/1P3B2/6n1/1kn2rbq/1r5B/1BP1PP2/NbBb4 w - - 0 2 illegal: No proof kernel
r4bk1/1RRb1p2/P2nRP2/1r2R1n1/RPq5/QbB2NN1/P2nP1p1/2n3K1 w - - 0 1 illegal: No proof kernel
3qr3/1N1PN1P1/pR1N1BP1/2Q1rnpn/Pn4PN/3b2r1/1R3K1r/1b1k2N1 w - - 1 2 illegal: No proof kernel
B1bN1q2/2Npb1P1/N3N1QR/4Pn2/rP1PP1nn/3N1rpr/K4Bk1/2r5 w - - 0 1 illegal: No possible last move, all moves rejected
bKnb4/2q2Pp1/Rb1P3R/nkPb1P1p/2rrR2B/5N2/1NR1q2P/4Q1R1 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 f5 axb5 Bb7 g4 Bc8 gxf5 c6 b4 Qc7 b6 Nf6 b5 Qd7 b7 Qd8 b6 Ng8 Bb5 cxb5 Ke2 Kd7 Kd3 e5 Ke4 h5 c4 a5 f4 b4 d4 b3 c5 a4 f6 b2 d6 Kc6 d5+ Kb5 d7 a3 f7 a2 f5 Ne7 Bg5 Qc7 d8R Nbc6 b8R Bb7 Bh4 Na5 Qe1 Nc8 Nf3 Be7 Rd6 Rd8 Nbd2 Bg5 Rc1 b1B+ Rc2 a1B Rg1 Ba2 Nc4 Bc3 Nb2 Ra7 Rh6 Ba8 b7 Rd6 Kd3 Bd8 Ke3 e4 Kf4 e3 Ke4 Bb4 Ke5 Rg6+ d6 e2 Kd4 Rg4+ Ke5 Rc4 Ke6 Ne7 Rc8 Ra6 b8R+ Rb6 Rb7 Bc3 Rcb8 Nc8 Ra7 Bd2 Ra6 Bc3 Qg3 e1Q+ Qe5 Qe2 Rb7 Qb8 Re7 Rd4+ Kd7 B2d5 Qg3 Rc4 Re3 Bcf6 Qe1 Rb7+ Ke8 Bb6 Re4 Ra7 Nd2 Bfd8 Nf3 Nb7 Kd7 Rd4 Ra1 Raa4 Ra3 Rab4 Ra6 Qc7+ Ke8 Qb8 Qf1 Ne7 Kd7 Rbc4 Qe1 Na5 Rc3 Ng6 Rc2 Qa7+ Kc8 Qd7+ Kb8 Ne7 Qc1 Nc8 Qe1 Qc7+
2N1k3/NP2bbp1/6Pb/B2p2rR/pN5r/P1nq2P1/Q3nPB1/NNr2K2 w - - 1 2 legal: proof: d4 e5 dxe5 f5 e4 b5 c4 Bd6 cxb5 Nh6 e6 Bb4+ Nd2 Ng8 e5 Bf8 b4 Bc5 g4 Qh4 Rb1 Qg3 hxg3 Be7 Rb3 Bc5 Re3 Bf8 Re4 fxe4 e7 a5 g5 c5 a3 d5 g6 h5 b6 e3 b5 c4 b7 a4 b6 h4 Nb3 c3 Nf3 h3 Bg2 c2 Kf1 h2 Qe2 Nc6 b8N Nd4 b7 Nf6 Nfd2 Ne4 Nb1 Be6 Bd2 c1B Na1 Bf7 Ba5 Rh4 Na6 Nc3 Nb4 Rc8 Qb2 Nde2 Qa2 Kd7 e8N Be7 Nd6 Rcc4 Na6 Rcg4 Nb4 Rg5 Nb5 Ke8 e6 Bd2 Rg1 h1Q Na7 Qh3 Rh1 Qf5 Rh2 Bc5 e7 Qd3 Bd8 Kd7 e8N Be7 Nd6 Bc1 Ne4 Ke8 Ba5 Rf4 Nbc6 Re5 Nb5 Nd4+ Kg1 e2 Rh5 Rh4 Nba7 Bh6 Nb4 Rg5 Nd6+ Kd7 Ndc8 e1R+ Bf1 Rc1 Kg2 Ke8 Kg1 Nd1 Bg2 Ne2+ Kf1 Ndc3#
1r5n/qQ1p1NN1/1PPPpn2/1b1r4/3q1P1p/1B1k1N1P/2b1R1rK/BN3N2 w - - 0 2 legal: proof: b4 c5 a4 b5 axb5 f5 e4 Bb7 exf5 Qc7 b6 Bc8 b5 Qd8 f4 e6 g4 Qe7 g5 Qd8 Ra4 Be7 Rb4 Bf6 gxf6 cxb4 Kf2 Kf7 Kg3 a5 d4 g5 c4 h5 d5 b3 b7 a4 d6 b2 b6 a3 h3 h4+ Kh2 a2 c5 a1Q Qf3 g4 Ne2 Ne7 Ng3 Na6 b8N Nd5 Nc6 Nac7 Nd4 Rh5 Bc4 Ne7 Qb7 Qh8 c6 Ng6 Bb3 Qa7 Re1 Ne8 Nf3 Rb8 Nf1 Qg7 Bd2 Nh8 Re2 Rg5 Bc3 g3+ Kh1 g2+ Kh2 g1R Be5 Kg8 f7+ Kh7 f6 Kg6 f8N+ Kf5 f7 Nf6 Ng6 R1g4 f8N Rg2+ Kh1 Rh5 Nh7 Rhg5 Bc3 Rh5 Nge5 Rhg5 Qc7 Ba6 Nf7 Bb5 Qb7 Rh5 Rf2 Ke4 Re2+ Kd3 Bd4 Ne8 Nf6 Rd5 Nh5 Qe5 Ng7 Nf6 Na3 b1B Ba1 Bc2 Nb1 Rg1+ Kh2 Qd4 N7g5 Rg3 Nf7 Rg2+
q3R1b1/3Npr2/KB2q3/1pB1P1PB/PbBn1R2/2Pnqp2/1PQ5/2Br2k1 w - - 0 2 illegal: No proof kernel
3NN3/Qqp1b3/p2qB2B/1Bbb1p2/qPB1P3/P3KP1n/2r1P3/k2B2nR w - - 0 1 illegal: No possible last move, all moves rejected
B7/1P1PNqN1/PbN2r2/R3R3/1K1n1N1k/1n2pnp1/1pnNPnP1/5bQ1 w - - 0 1 illegal: Other
4b2N/qprbpR2/2Q4N/Pn2qP1p/1P3N2/N1NRPB1q/3b1k1P/K3nr2 w - - 0 1 legal: proof: g4 f5 gxf5 d5 c4 a5 cxd5 a4 b3 a3 Bb2 axb2 f4 Kd7 d4 Kd6 Kd2 c5 Kc3 h5 a4 g5 b4 c4 a5 g4 f6 g3 f7 g2 Qc2 Bh6 f8N Qc7 Qf5 Nc6 Ng6 Bd7 Na3 b1B Kb2 Rf8 Qc2 Nf6 Qa4 Rhg8 Nh8 Bg6 Rd1 c3+ Ka1 c2 Rd3 Nh7 f5 Bd2 e3 Ng5 Qb5 Nf3 Be2 Ne1 Bf3 Na7 Ne2 g1Q Nc3 Qg3 Rg1 Bge8 Rg2 Qe5 Rg7 Qc5 Rf7 Rg1 Qc4 Rf1 Qa6+ Kc7 Qc4 Nb5 d6+ Kb8 d5 Qa7 Qc6 c1Q+ Ka2 Qd1 Kb2 Qe2 Ka2 Qg2 Ka1 Be6 d7 Qh3 d8N B6d7 d6 Rg8 Qd5 Rg4 Ne6 Rc4 Nf4 Rc7 Qe4 Kc8 Rf6 Be6 Rf7 Kd7 Rd5 Kc6 Rd3+ Qd5 d7 Kd6 d8N B6d7 Qc4 Ke5 Qc5 Qa6 Bg4 Qe6 Qc6 Qc5 Rg7 Qa7 Rh7 Kf6 Be2 Kg5 Ndf7+ Kh4 Nh6 Qe5 Rf7 Kg5 Bf3 Kh4 Bh1 Kg5 Ng8 Kg4 Bd5 Qe4 Nh6+ Kf3 Kb2 Kf2 Ka1 Qed4 Bf3 Qe5
1n3nb1/5BPN/R2PnB1q/4N2b/1k1P4/rPqK2Q1/1N1P1br1/1rB2B2 w - - 0 1 legal: proof: e4 b5 a4 d5 exd5 g5 axb5 f5 h4 Qd7 hxg5 Kd8 c3 Ke8 Ra4 Qd6 Rd4 Qe5+ Re4 Qd4 cxd4 fxe4 Ke2 Kd7 g4 a5 f4 e5 g6 c5 g5 h5 g7 e3 b3 h4 d6 h3 g6 h2 b6 Kc6 f5 Kb5 b7 e4 f6 a4 f7 a3 Bg2 c4 Bf3 a2 Bg2 a1Q Bf1 c3 Qe1 c2 Nh3 Ne7 g8B Qc3 g7 Ng6 Na3+ Kb4 Bh7 Be6 Bb2 c1N+ Kd1 Be7 f8B Nd3 Ke2 Ndf4+ Kd1 Bh4 Bc1 Bf2 Rg1 h1B Nc4 Bg8 Ng5 Ne6 Ke2 Ra3 Be7 Ngf8 Bg6 Rh2 Nb2 Bg2 Bd8 Bh3 Rh1 Rg2 Bf7 Bf5 Bf6 Bg6 Rg1 Bh5+ Nf3 Rh2 Rg5 Rg2 Ra5 Qc7 Ra6 Qa5 Kd1 e2+ Kc2 e3 Kd3 Qg5 Ne5 Qh6 Qd1 e1Q Qg4 e2 Qg3 Nc6 b8N Qd1 Ng4 e1R Nd7 Nb8 Nge5 Qg4 Be8 Qh3 Bf7 Ng6 Nf8 Rd1 Nh7 Ngf8 Na4 Re1 Bb2 Rb1 Bc1 Qg4 Nb2 Qf3+ Kc2 Qc6+ Kd3 Qc3+
N4rq1/BB3Pk1/1n3n2/3n2b1/RN1rb1PN/2KPP1BQ/rPn1N3/1r6 w - - 0 1 legal: proof: h4 e5 a4 g5 hxg5 b5 axb5 d5 Ra5 d4 Ra1 d3 cxd3 e4 Ra4 e3 Rc4 f6 dxe3 f5 Kd2 f4 Rc2 f3 e4 Bf5 e3 Bd7 Ke1 Bf5 Re2 fxe2 Kd2 Bc8 f4 Kf7 g4 e1N g6+ Kg7 e5 h5 e6 c5 f5 a5 b6 c4 b7 a4 e7 h4 Na3 h3 Kc3 h2 Bg2 Nf6 Ne2 Nc2 Bd2 Nbd7 b8B Nb4 Be1 Bb7 Ba7 Be4 Nc2 a3 Bg3 a2 Qf1 a1N Bf3 Qc8 Qh3 Nb6 Rd1 h1R e8N+ Kg8 g7 Be7 Nc7 N4d5+ Kd4 c3 Nb4 Kf7 g8N c2 Nh6+ Kg7 Rf1 c1R Re1 Rb8 Na8 Rb1 Rc1 Rf8 Rc4 Qe6 Bg2 Rbd8 Bf3 Nf4+ Kc3 Rd4 Bg2 Nc2 Bf3 N6h5 Bg2 Qg8 f6+ Kh7 f7 Kg7 Bf3 Bg5 Bg2 Nf6 Nf5+ Kg6 Nh4+ Kg7 Bf3 Ra1 Bg2 Rhb1 Bh1 Ra2 Bf3 Bg6 Bb7 Bf5 Nc6 Bg6 Ra4 Be4 Nb4 N4d5+
1bK2r1r/q3nP1b/Nb2N3/3RP1qp/B3Q1PP/Pr1BN3/1BN5/1k1n4 w - - 0 1 illegal: No possible last move
1B2q2q/2R1qNQ1/N1PK4/b2R4/1PbPP2k/1p1n1P2/3q1R2/qr2RNn1 w - - 0 1 illegal: No proof kernel
3N1B1Q/5BbP/n5B1/k2Pq1P1/PRn1q1N1/1p3P2/1bn1rNb1/N1K2b2 w - - 0 1 legal: proof: f4 h5 b4 f5 a4 d5 c4 a5 cxd5 g5 bxa5 b5 g4 Ra6 Ra3 Rf6 Rg3 Rf7 fxg5 f4 g6 f3 g5 Rf4 Rg4 hxg4 Kf2 Rf6 Ke3 f2 Kd3 Rf3+ exf3 Rh4 Ke2 Rh8 d4 Kd7 Kd2 c5 h4 Kc7 g7 e5 a6 Kb6 a7 g3 a8N+ Ka5 h5 e4 h6 c4 h7 e3+ Kc2 c3 d6 e2 d7 b4 d5 g2 Bd2 e1N+ Kc1 b3 Bd3 f1B Nh3 g1Q Nf2 Qh2 Nc7 Qe8 d8N Nh6 g8B Bch3 Bg6 Nc2 B8f7 Na6 Na3 Qe4 Ne8 Qhe5 Nf6 Bhg2 N6g4 Nf5 Rh4 Bg7 Bf4 Rg8 Qd4 Re8 Be3 Nd6 Bd2 Ne1 Nc2 Nc4 Na1 Re7 Be3 c2 Qb2 Re8 Bc5 Nb6 Kd2 c1B+ Kd1 Nc2 Bf8 Qg3 Qf6 Bb2 Kd2 Qge5 Kd1 Bh6 Qh8 Bg7 Kd2 Nc4+ Kd1 Bc3 Kc1 Bb2+ Kb1 Qe3 Nh6 Qf5 Nh3 Ne5 Rb4 Nc4 Ng4 Qd4 Nhf2 Re2 Bd6 Qde4 Bf8 Bbd4 Kc1 Qfe5 Nd3 Bc3 Ndf2 Bb2+
8/2R3KP/1qP1nrRp/PBRBn3/1Q2P1qB/bN3P2/q1n2Bkr/1q6 w - - 0 1 illegal: No proof kernel
4n2r/1QPpPqR1/3R4/kb2b3/b4N1q/2NPNP1P/1q1N3K/b2Rn2B w - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 f5 a4 c5 bxc5 f4 axb5 f3 Kf2 Nh6 Ke3 f2 Kd3 Ng8 Kd4 Nh6 Kc3 Ng8 Bb2 a5 Kb3 h6 Bd4 Bd6 Kb2 Bf8 Be3 Ra6 Kc1 Rf6 Bg5 Rf3 gxf3 hxg5 c4 g6 e4 a4 c6 g4 e6 a3 h3 g5 e7 a2 b6 g3 c5 g4 d3 g2 Kd2 g3 Ke3 Rh7 Kf4 Nf6 b7 Rh8 e5 Bg7 c7 Nh7 c6 Bf6 Nc3 Na6 b8R Nb4 Qb1 Nc2 Rb6 Ba6 c8N Bb5 Nge2 g1Q Bg2 Qh2 Rg1 f1B Bh1 Ne1 c7 g2+ Kg4 Bg7 Nf4 Be2 Ra6 Bd1 Rd6 Bda4 Nb6 Kf7 e8N Ke7 e6 Be5 Ng7 Nf6+ Kg5 Qf8 Nc4 Ne8 Kg4 Qf6 Qb3 Qf7 Rd1 a1B Nd2 Bb2 Rf1 Ba1 Rf2 g1Q+ Rg2 Qf2 Nf5+ Kf6 Ne3 Ke7 Ndc4 Qb2 Nd2 Qg1 Kg3 Qf2+ Kh2 Qh4 Ra6 Nc2 Rg7 Ne1 Ra8 Kd6 e7 Kc6 Ra6+ Kc5 Qd5+ Kb4 Rd6 Ka5 Qa8+ Ba6 Qb7 B6b5
n1b4K/qqQ1RPN1/1n1q3N/1p2pN2/3b4/3PPr2/B2BP2P/2Nk2Br w - - 0 1 legal: proof: a4 d5 g4 e5 b3 h5 gxh5 f5 b4 a5 bxa5 d4 Ra3 f4 Rg3 d3 cxd3 Kd7 Re3 fxe3 dxe3 Ke8 f4 Kf7 Kf2 Ke6 Kf3 Kf5 h6 b5 a6 c5 a7 g5 a5 c4 a6 c3 h7 c2 Bg2 Nc6 Nc3 Nge7 Na2 Bg7 Nh3 Qd7 Rf1 Qc7 Nf2 Ng6 Ng4 Qa5 Bd2 c1Q Qc2 Rd8 h8B Nge7 Nh6+ Ke6 Kg4 Nb8 Kh5 g4 f5+ Kd6 f6 g3 Bd5 Qca3 Nc1 g2 Ba2 Nd5 Kg6 g1Q+ Kh7 Bf8 f7 Nc7 Bf6 Nd7 Bh4 Qh1 Bf2 Nb6 Kh8 Qb7 Bg1 Re8 Rf5 Re6 Rf6 Q5b4 Rg6 Rf6 Rg8 Be7 Re8 Rf3 Qc4 Bd8 Re7 Qaa5 Qg4 Kc5 Qd7 Qc3 Qc6+ Kb4 Qc4+ Ka3 Qc5+ Kb2 Qc6 Rb8 a8N Kc2 a7 Kd1 Qd6 Qcb4 Qd7 Na6 Nc7 Ra8 Ne6 Qd6 Ng7 Nc7 Qc6 Bf5 Qc5 Rc8 Qc6 Nca8 Qd7 Rc2 Qc7 Bc8 Ngf5 Rb2 Qc3 Rb1 Qc4 Nc7 a8N Qaa7 Qc6 Ncd5 Nc7 Na8 Ne8 Bb6 Qc4 Bd4 Neg7 Ndb6 Qc7 Bc5 Bf2 Kc2 Nb3 Rh1 Nc1 Kd1 Bg1 Bd4
6rr/n1R1P2b/p3rPrB/1PP2K2/kq5B/3N1Q2/nP1p2B1/R3Rn1R w - - 0 1 legal: proof: d4 h5 a4 e5 g3 c5 dxc5 b5 axb5 e4 Nd2 f6 Ndf3 Ne7 Ne5 f5 Ng4 Ng8 f3 Bd6 fxe4 Bf4 e5 hxg4 Nf3 Be3 Ng1 f4 Ra3 f3 Ra1 Bf4 gxf4 Kf8 Ra6 Kf7 Ra1 Ke8 Kd2 d5 Ke3 Kd7 h4 g5 c4 a6 c6+ Kc7 f5 Kb6 h5 f2 h6 d4+ Ke4 d3 e6 g3 e7 g2 e8R g4 h7 g3 f6 Qd6 c7 Qb4 Nh3 g1R Nf4 Nc6 Bg2 f1N e3 Bg4 c8R Nge7 Rc7 Nd5 Qf3 Na7 Ree7 Rhg8 h8B Nc3+ Ke5 Rge8 e4 Na2 c5+ Ka5 Bg7 Ka4 Bh6 Bf5 Be3 d2 Nd3 Rac8 Beg5 Bh7 Bh4 Rh8 Ke6 Rcg8 e5 Rg6 Rh3 Rh1 Kf5 Rhg8 e6 Rh2 Bh1 g2 Re8 g1R Ree7 Rf2 Bg2 Rh8 Rh1 Re2 Rg7 Nh2 e7 Re6 Rg8 Rc1 Re1 Nf1 Rd8 Rc4 Rd5 Rcg4 Rde5 Nh2 Rh1 Nf1 Ree1 Rd4 Nc1 Rdd8 Nd3 Rdg8
3Q4/2B1n1pr/2Pnn2N/R1NRR3/pk1q3P/1nRp3P/3K1PP1/3N1b1n w - - 0 1 illegal: Other
1NK3R1/RNr2bPP/1RQ1np1B/1p2k3/1P4pp/2PR2P1/r6p/3r1nN1 w - - 0 2 illegal: Other
N1r1Bb2/1n1KP3/B2b1b2/1bB1P3/prQ1nqPN/P3R2P/1q5N/2Bk2q1 w - - 0 1 legal: proof: c4 e5 b4 b5 cxb5 h5 d4 g5 dxe5 h4 g4 Bb7 Nd2 Ba6 Rb1 Bc8 Rb3 Bc5 f4 Bf8 Rg3 hxg3 fxg5 Bh6 Nh3 Bg7 Ng1 Bf8 e4 Ke7 Ke2 Ke6 Kf3 d5 Kf4 a5 h3 c5 b6 f5 b5 g2 b7 a4 a3 c4 g6 c3 g7 c2 b6 d4 Nb1 d3 Nf3 g1B Be3 c1B Nbd2 Rh6 Nb1 d2 Qc2 d1Q Qc5 Q8d2 Qb4 Bb2 Ba6 Nf6 Nh2 Nc6 b8B Bd7 b7 Na5 Ba7 Rb8 Bc5 Bb5 Qc3 Bf2 Re1 Bg3+ Kg5 Qf2 Nd2 f4 Ndf3 Qdd2 Nh4 f3 Bf4 Qg1 Re3 f2 Qb4 f1Q g8B+ Kd7 Kf5 Kc6 Ke6 Ba1 Qd4 Qb2 Bg5 Qf4 Qc4 Rg6 Kf7 Rh6 e6 Rg6 e7 Rh6 Ba7+ Kd6 Bh7 Ke5 Bf5 Rg6 Bd7 Rh6 Be8 Rg6 Qc6 Rh6 Bc5 Rg6 Bd6+ Kd4 Ke6 Rh6 Bc5+ Kc4 Re2 Kd3 Re3+ Kc2 Qd5 Rg6 Qc4+ Kd1 Bh6 Qf3 Bg5 Bd6 Bh6 Qf4 Bg5 Rd8 b8N Nb7 Nd7 Rc8 Bh6 Rc6 Nb6 Rg5 Na8 Rd5 Qa2 Rd4 Bg5 Rb4 Qc4 Nh5 Kd7 Ng3 N4f3 Qc1 Nh4 Bf6 e5 Qb2 Bh6 Ne4 Rg3 Qf3 Bc1 Qf4 Re3 Rc8+
3n1BR1/1Rn3rB/p3r1Nk/5nb1/P1PP3B/R2QP3/q1KnP1q1/1bR2q2 w - - 0 1 illegal: No possible last move, all moves rejected
4r2r/3Q2p1/qN6/K1N1q3/BN1B2Pr/3PPq2/2PPNknR/2Bn1bbq w - - 0 1 illegal: No proof kernel
3R4/B1Ppb1N1/QRKPq3/PBp1P2b/5qkb/4Rrb1/5nPB/3n2Rr w - - 0 1 illegal: Other
r1bBqN1b/r3QP1K/pPN3p1/2P1bp2/5P1N/nP1k1BR1/2r5/B4n1B w - - 0 1 illegal: No proof kernel
1k5q/3PN2N/2b1Bp1p/4qPQR/n1b3pP/1Nbr4/PB3N1P/1n1KBq2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Bb4 Na3 Bc5 d4 Bf8 d6 Kd7 d5 Ke8 g3 b5 Rb1 Ra6 Rb4 Rc6 Ra4 Rc4 Rb4 Rf4 Rd4 Rh4 gxh4 exd4 e4 Kd7 f4 c5 f5 g5 a6 g4 e5 f6 a7 b4 a8N c4 Nb1 b3 Bb2 c3 Bc4 c2 Nh3 c1Q Nd2 d3 Nf2 Qa1 Qc1 Ba6 e6+ Kc8 e7 Nd7 e8N Nc5 d7+ Kb8 d6 Na4 Be6 Bc4 Ng7 Ne7 Nb6 Nd5 Nc8 Ndc3 Ne7 Nb1 Kd1 h6 Re1 Qc8 d8B Rh7 Ba5 Rh8 Be5 b2 Nb3 Qe8 Qg5 d2 Nh5 Qd8 Nf4 Qc8 Nfg6 Rh7 Ng8 Rd7 Re2 Be7 Nf8 Bd8 Bac3 Ba5 Ne7 Bb4 Nh7 Qh8 Bcd4 Bc3 Bg3 Rc7 Re5 Rc5 d7 Rd5 Bc5 Rd4 Ba3 Rd3 Rc5+ Kb7 Rc8 Ka7 Rg8 Kb7 Ke2 d1B+ Kf1 Bf3 Rg7 Bh1 Ke2 Bc6 Rg8 Nd2 Rg6 b1Q Bb2 Qh1 Rg7 Nb1 Rg8 Bd2 Rg6 Qg2 Kd1 Bc3+ Qd2 Qe8 Nh1 Rf3 Bc1 Bb2 Rg5 Rd3 Rh5 Qf1+ Be1 Qh8 Nf2 Be5 Ba3 Kb8 Bc1 Qd4 Bb2 Qf4 Nc5 Bc3 Nb3 Re3 Qc1 Qe5 Qd2 Rh3 Qg5 Rd3+
R1K1Nr2/1PPqp1r1/2RP1b2/1Rq1Qpk1/8/nrN1PP1n/Np3rB1/5R2 w - - 0 1 illegal: No possible last move, all moves rejected
2NNqB2/1P3P2/1n4rK/1pB4N/k1P1BR1p/n1b1Npbp/1P2r1bP/6Q1 w - - 0 2 illegal: No proof kernel
1b6/1RNQ1R2/p3r1P1/2Kr1p1p/1p3q2/qNPNPP1q/1P1B1nR1/1n3kN1 w - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 b5 hxg5 b4 a4 e6 e3 Ba6 Bc4 Bb5 Bd5 exd5 axb5 Qf6 Ra6 Qb6 Ra1 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 g6 h5 b6 a6 b7 Rh6 c3 Bd6 g3 Nf6 g7 Ne4 g8R Re6 c6 Qg5 c7 Nc6+ Kd3 d4 Kc4 d3 b8N d2 c8N Nd4 Qa4 Kg4 Qb5 d1Q Ne7 Nb3 Rg7 Qf3 Nbc6 Rd8 Nd5 Bb8 Rh2 Nbd2+ Kd4 d6 Nc7 d5 Rg2 f5 Ra5 Rdd6 Rf7 Qgf4 Qa4 Rd7 Rb5 Rdd6 Rb7 Rd7 Na3 Nb1 Nc2 Rd8 Ne1 Rdd6 Ne2 Kh3 g4 Q3g3 f3 Nf2+ Kc5 d4 g5 d3 g6 d2 Qb5 d1Q Na5 Qa4 Bd2 Qa3 Qd7 Qgg4 Nb3 Qh4 Rg1 Kh2 Nd3 Qh3 Rg4 Kh1 Ng1 Rd4 Rh4 Kg2 Rg4+ Kf1 Rg2 Rd5+
2q1B1N1/kq4pN/Pp2Pp1B/2PK1Pn1/7Q/2B1b3/NrR3Pp/n2bqB2 w - - 0 1 illegal: No proof kernel
QN4Bb/B1q3p1/4KB1P/p3Npn1/PP4r1/N3r1P1/n1q1rP2/RqB1k2b w - - 0 1 illegal: Other
3n4/r1NNKR2/2N1p1p1/b2B2B1/N1ppPb1p/2PP4/1P1Qr1kP/b1B2n1q w - - 3 4 legal: proof: e4 b5 a4 f5 axb5 f4 Ra3 Bb7 Rc3 Bc8 Re3 fxe3 g4 Bb7 f4 Bc6 f5 Bd5 f6 Bc4 Nh3 Be6 Ng1 Bf5 gxf5 Kf7 Bg2 Ke8 Bh3 Kf7 Bf1 Ke8 Ke2 Kf7 Kf3 a5 Kg4 c5 Kg5 d5 b6 h5 b7 e2 Nh3 e1B Bc4 h4 Nc3 a4 Rg1 a3 Nb1 e6 Nc3 g6 Ba6 a2 Na4 a1B Rf1 c4 Nf4 Nc6 b8N Nge7 Bb7 Ra7 d3 d4 Qe2 Nd5 Qd2 Ne3 Nd5 Qa5 Nc7 Nd8 Bd5 Bd6 Nc6 Rf8 Rf4 Nf1 Rf2 Kg8 f7+ Kh7 Kf6 Bf4 Ke7 Kh6 f6 Kg5 Rf3 Kg4 Rf2 Rg8 f8N Kh3 Nd7 Rf8 f7 Qc3 Qd1 Qb3 Qe2 Bc3 Qd2 Ba5 c3 Qd1 Rf3+ Bg3 Rf5 Bf4 Rf6 Qf3 Rf5 Qh1 Rf6 Rg8 f8B Rh8 Bh6 Rf8 Qe3+ Kg2 Bg5 Be5 Rf7 Bg3 Rh7 Rf2 Rf7 Bf4 Qd2 Re2
1r3Bq1/1N2q1p1/Pq1Nk3/2r4R/2qB3Q/1Qb1PK2/2Pn1P1P/1B1b1B2 w - - 0 1 illegal: No possible last move
2R5/P1PKP1Pp/QNQ2rk1/n3b2q/3P2B1/2qrN1R1/p1r5/RR1n4 w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 g5 axb5 a5 h4 c6 hxg5 a4 b3 a3 bxc6 d6 c7 Ba6 Ra2 Bb5 Ra1 Ba4 bxa4 Qd7 Kf2 Qc8 Ke1 Qd8 c4 Qd7 c5 Bh6 c6 Qe7 Bb2 Bf8 Bd4 Qd8 Bc5 dxc5 Kf2 f5 Kf3 Kf7 Kf4 c4 c8R c3 e4 c2 d4 c1Q+ Nd2 a2 g4 Ra6 a5 Qd6 c7 Qb6 e6+ Kg7 Ke5 f4 g6 f3 e7 f2 e8Q Qa3 g5 Ne7 Be2 f1R Nh3 Qab3 Qc6 Qf3 Ke6 Nd7 e5 Qd3 Qa4 Qa3 Nf4 Rc1 Ng2 Qb5 Ne3 Qc3 Ndc4 Nf6 Nb6 Ng4 Kd7 Nf2 e6 Rc2 Rhb1 Rg8 Bg4 Nd1 Qc4 Qe5 Q4b5 Qh2 Qa4 Qh5 Qa3 Nf5 e7 Nd6 Qaa4 Nc4 Qab5 Ra8 a6 Na5 a7 Rb8 Qa6 Rb7 Nbd5 Rb5 Nb6 Rf5 Qa8 Rf3 Qc6 Rh8 Ned5 Rd3 Ne3 Kg8 g7 Kf7 g8R Bg7 Rcd8 Be5 Rc8 Bd6 g6+ Kf6 g7 Kg6 Rgf8 Rg8 Rf3 Rf8 Rh3 Rf6 Rg3 Be5
K1B1N2k/q1P5/PR1Q3P/q1Q1r1p1/1Q2n1P1/2p2QPN/q3n3/1n1n2B1 w - - 0 1 illegal: No possible last move
4r1N1/2PqP1K1/2Rbq2P/N4Q1R/1nNnbQ1q/P2P3r/6Nn/kq5B w - - 0 1 legal: proof: f4 d5 e4 e5 fxe5 a5 exd5 h5 b4 c5 bxa5 h4 Ba3 h3 Bb4 cxb4 gxh3 Bc5 h4 Be7 h5 Bf8 Kf2 Kd7 Kf3 b5 Kg4 g5 Kf5 f6 Kg6 f5 h4 b3 c4 f4 a3 b4 d3 g4 a6 f3 e6+ Kd6 c5+ Ke5 c6 Kd4 h6 f2 d6 g3 a7 b2 h7 b3 h5 g2 c7 Be7 d7 Qe8+ Kg7 Bc5 d8N Qd7+ e7 Nh6 Nb7 Nc6 Qd2 Nb4 Nh3 g1Q+ Bg2 f1N Na5 Bb7 Qf4+ Be4 Nd2 Kc3 Ndc4 Rae8 a8Q b1Q Qd5 b2 Qdf5 Qa2 Rh2 Qe3 Bh1 Qf2 Rb1 Qh4 Rc1+ Kd4 Rcc2 b1Q Rc3 Bd6 Rc1 Rhf8 h8N Qab3 Nf7 Rh8 Nce5 Q3a2 Rc6 Qae6 Nec4 Kc3 Nfe5 Ng3 Ng4 Ne2 Nf6 Ng4 Ng8 Nd4 Ng5 Rd8 Nf3 Re8 Ne1 Rh6 Ng2 Kc2 Ne5+ Kb2 Nec4+ Ka1 Rh3 Rf6 h6 Nh2 Rg3 Rff8 Rg5 Rf6 Rh5 Rg6+ Kh8 Rg3 Kh7 Rf3 Kg7 Rh3
K2q2B1/P2P1RbQ/n1b2rqP/1Bn1P3/P3N1k1/1r1B4/1QR1r3/Bb3r2 w - - 0 1 illegal: No possible last move
Q1qB2rr/2P2P2/1KnQBP2/1P1N4/bb1P1Brr/R2r4/1k2r1Br/3R4 w - - 0 1 legal: proof: g4 c5 a4 d5 e3 b5 axb5 h5 Nc3 f6 Ne4 d4 Ng5 c4 d3 Nc6 dxc4 d3 c5 Nd4 exd4 Rh7 Nf7 Rh8 Ne5 f5 gxf5 Bb7 Ng4 hxg4 Ra3 Ba6 Ra1 Bc8 Kd2 Kf7 Kc3 a5 Kc4 g5 h4 e5 f4 a4 b4 g3 c6 d2 b6 e4 Kb5 a3 c4 g2 h5 g4 c5 a2 f6 Ke6 h6 Kd5 h7 e3 b7 g3 b8Q e2 c7 e1R c6 Bd7 c8B Ne7 f5 Re2 Nh3 g1R f7 g2 Qa4 d1R Bf4 Rd3 Qd6+ Ke4 Rd1 a1R Qa5 Be8 Be6 Qc8 Kb6 Raa2 c7 Ba4 b5 Nc6 Qa6 Rg8 h8B Rad2 Rh2 Rh1 Bf6 g1R Bd8 R1g4 f6 Ra2 Rf2 Rh2 Rf3 Rh4 Qd7 Bb4 Qd6 Reg2 Qa7 R2g4 Bg2 Re2 Qa5 Qd7 Qa7 Rc8 Qa8 Rgh8 Be7 Rcg8 Bd8 Qc8 Bh6 Rde3 Nf4 Rd3 Nd5 Rde3 Rg1 Kd3 Rd1+ Kc2 Bf4 Rd3 Rh3 Kb2 Rg3 Rdd2 Ra3 Rd3
3N1R2/rQ1N4/2Pbb1QP/b2pRn2/1q3P1R/3nPP1r/k2n1RKr/2B5 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 c5 dxc5 h5 g3 h4 Qd3 h3 Bg2 f4 gxf4 e6 Bd5 exd5 Qxh3 Ne7 Qh7 Ng8 Kf1 Ke7 c4 Ke6 b4 a5 h4 g5 h5 d4 e3 g4 c6 g3 c7 d3 c5 Kd5 b6 Kc4 c6 Kb3 b7 d5 b5 d2 b6 d1R+ Kg2 a4 Qf7 a3 Rh4 a2 Nf3 Qe7 Ne5 Qb4 Nd7 Rh1 Qg6 Ra7 Nc3 Ne7 Ne2 Na6 b8Q Nf5 b7 Bd6 f3 Nc5 Qa8 Nd3 b8R Rh7 Qb7 Rh3 Ne5 Be6 c8R Rh6 Nd7 Rh8 Kg1 g2 Rf8 Rh7 Rbe8 Rh8 Bb2 Rh6 Re1 a1N Bc1 Ka2 Nd4 Nb3 Re2+ Nd2 Re7 Ne5 Kf2 g1B+ Kg2 Nd3 Rf2 Bh2 Ree8 Bg3 Re7 Bg8 Re5 Be6 Re2 Be1 Rf2 Bg8 Ne6 Rh1 Ng5 Be6 Nf7 Qc3 Bb2 Nb3 Rg4 Qc4 Nd8 Ba5 Ba3+ Nd2 Bc1 Qb4 Qe8 Rg6 h6 Rg5 Qf7 Rgh5 Qg6 R5h3 Rh4 R1h2+
N5rr/6nk/pQP1q3/n1QqN1B1/2RPP3/1PbK1Q2/PbBb4/2Qq4 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 c5 g4 b6 gxh5 Bd7 b3 Bb5 Na3 Bc6 dxc6 b5 Rb1 Qd4 Rb2 Qd7 Rc2 Qd8 Rc4 bxc4 d4 g5 Kd2 f5 e4 Kf7 h4 Kg7 h6+ Kh7 h5 g4 e6 a6 e7 c3+ Kc2 f4 e8Q f3 Be2 g3 Nh3 g2 Kd3 g1Q Qd2 f2 Nb5 f1Q Nf4 c2 Ng6 Ne7 Ne5 Qg6 Nc7 Nf5 Qf7+ Ng7 Qf3 Nd7 Rh2 Rc8 Na8 Nb6 Rh1 Qfg1 Bd1 Nc4 Qa5 Q1g4 Qb6 Na5 Bg5 c1B Bc2 Bb2 Rc1 c4+ Ke2 c3 Kd3 Rg8 Qc5 Kh8 h7 Q6e6 Qb6 Qdd5 Qc5 Nf5 Qb6 Kg7 Qc5 Re8 Qb6 Bb4 h8Q+ Kf8 h6 Qh5 Bb1 c2 h7 B4c3 Qf6+ Qef7 h8Q Ng7 Qe3 Qd1+ Qd2 Rc8 Qh5 Rh8 Qe7+ Kg8 Qec5 Qfe6 Qg4 Kh7 Qf3 Qe1 Rd1 c1B Bc2 Rce8 Qdf4 B1d2 Rc1 Rc8 Qa7 Qd1 Bb1 Rcg8 Qab6 Bb4 Rc4 B4c3 Bc2 Bdc1+ Qd2 Qe1 Qdd1 B1d2 Qc1 Qd1
R1n2q2/3BPRN1/1rK1P1r1/r3N2q/6P1/n3PQ2/2p1bPNQ/Nn1kb3 w - - 0 1 illegal: No proof kernel
BQQq4/4P2P/7n/3NBbB1/B1P1k2p/7q/qr1q1PP1/Rr1bnKN1 w - - 0 1 illegal: No proof kernel
1r2R2K/1k4r1/1r2QQB1/1pr2P1P/r1QPR1b1/r1n2P2/1PnQ2q1/NN6 w - - 0 1 legal: proof: c4 c5 g4 f5 e4 h5 exf5 d5 gxh5 b5 a4 e6 a5 Be7 cxd5 c4 d3 c3 Ke2 Bc5 Bd2 Bb6 axb6 cxd2 Kf3 Kd7 Kg4 a5 h4 g5 b7 Kc7 h6 a4 Kh5 a3 Kg6 g4 Kg7 e5 h7 e4 h5 e3 Rh2 a2 Qa4 d1R Rh3 e2 Nf3 e1R Rh4 g3 Nd4 g2 Qc4+ Nc6 Nb3 Ra4 Re4 Ne7 d6+ Kb8 d7 g1R+ Bg2 Rc1 Qe6 Re8 h8Q Nd4 Qhh6 Nd5 Qhf6 Qa5 d8Q Qd2 Qc7+ Ka7 Qc4 Nc3 Kh7 Rg8 Bh1 R8g7+ Kh8 R1g6 Bf3 Bd7 Bd1 Nc2 d4 Bc6 b8Q+ Ka6 Qbe5 Kb7 Qh2 Qg5 Qf4 Qg2 Qd2 Ra3 Re2 Bf3 Re4 Bg4 f3 Re3 Qd6 Ra8+ Qg8 Na4 Re8 Re5 Na3 Rb8 Qh4 Ne3 Qg5 Rge6 Qf6 Nc3 Be2 Ka7 Bc4 Rf1 Re1 Nc2 Re4 Ra1 Nb1 Kb7 Qc5 Rd6 Bf7 Rb6 Qc4 Rd5 Bg6 Rc5 Na3 Rf1 Qge6 a1R Qc1 Ra2 Qd2 Rfa1 Nb1 Ra4 Rg8 Nb4 Re8 R1a3 Na1 Nc2
1B2Q3/N1PQRP1Q/n2p1Rr1/r2P1q2/PK3bN1/1p4bP/4nqQ1/r2k4 w - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 a5 b3 f5 exf5 a4 bxa4 b4 a3 b3 Bc4 Ba6 Bd3 Bb5 axb5 b2 b6 c6 Bb5 cxb5 a4 Qc8 Ra2 Qc7 Ra1 Qd8 d4 Kf7 Kd2 Kf6 Kc3 g5 f4 e5 h3 e4 b7 e3 h6 g4 h7 e2 Nf3 e1R Rf1 g3 Ne5 g2 Na3 Nc6 b8Q b1Q Qb7 g1B d5 Qc8 Qg4 Ra5 Qg2 b4+ Kc4 b3 Nb5 Qc7 Na7 Qb6 c3 Bd6 Ng4+ Kf7 f6 Kg6 Bd2 Be3 f5+ Kg5 Rf2 Rg1 Qc8 Qc2 Re1 Nd4 Bc1 Be5 Qc7 Qe6 Kb4 Bg3 c4 Qe5 Rf3 Qf2 c5 Rh1 c6 Qe4 f7 Nf6 f8Q Rg8 h8Q Rg6 Qh7 d6 Nc8 Qb1 Qe8 Nd7 f6 Qe4 f7 Bd2+ Rc3 Kf4 Qb7 Qc2 Re7 Ne2 c7 Qd3 Qb5 Qdf3 Bb2 Ra1 Qc6 Be3 Rc4+ Qe4 Bd4 Bc1 Ba7 Nc5 Bb8 Be3 Nf6 Bc1 Na7 Ke3 Qb5 Kd2 Ng4 Kd1 Qbd7 Qb1 Rce4 Bcf4 R4e6 Qf5 Rf6 Na6+
q4N2/B1p1k1nP/brb3Q1/2PQP1p1/2B2q2/1q1b3P/N1BP4/BrK2R2 w - - 0 1 legal: proof: f4 d5 e4 e5 exd5 a5 b4 e4 bxa5 Bd6 h4 Be5 fxe5 Be6 Bc4 Bd7 Bf1 Bc8 a4 h5 Bb5+ Nd7 Bd3 Ndf6 Bf1 Ng4 Ra3 Nf2 Rg3 Nh3 Rg4 hxg4 gxh3 Qe7 Ba6 Qg5 Bf1 Qd8 c4 g5 h5 b5 a6 f5 a7 e3 h6 b4 a5 f4 h7 f3 d6 b3 d7+ Ke7 a6 b2 Ne2 g3 Nd4 g2 Qc2 g1Q Kd1 f2 Ne6 Nf6 Nf8 Qh2 Nc3 b1B Qg6 Be4 Na2 Nh5 Bb2 e2+ Kc1 Ng7 Ba1 Rb8 a8B Rb6 a7 Ba6 Rg1 Bd3 Be4 Qf4 a8Q Qb8 Qd5 Qa8 Bf5 Be4 Rh1 Bg2 Bc2 e1Q+ Bd1 Qee3 Bc2 Be4 Be2 f1B Rg1 Bfg2 Rf1 Qb3 Bed3 Qf7 Be2 Bd3 d8B+ Ke8 Be7 Bh1 Qa5 Bc6 Bc5 Kd8 Bg1 Qf4 Qd5+ Ke7 Be3 Rb4 Ba7 Rb6 Ne6 Rhb8 c5 Qba4 Nf8 Rb2 Qg8 Qb3 Qc4 Rb6 Qd5 Be4 Bb5 Bd3 Bc4 Rb1+
3r1R1b/3BK1k1/2rr2B1/P1N1n1Bp/PPnrB3/6RP/Q3p1rP/1qQ5 w - - 0 1 legal: proof: e4 b5 d4 a5 e5 f5 d5 b4 Nd2 e6 dxe6 Qh4 Ne4 Qh3 gxh3 fxe4 Qg4 a4 Qd1 Ba6 b3 Bc4 bxa4 b3 a5 b2 Kd2 Kd8 Ke1 Bb3 cxb3 Ke8 Ke2 b1Q Ke3 d5 Kd4 h5 f4 g5 a4 e3 e7 Kf7 Kc5 g4 b4 d4 f5 d3 e6+ Kg7 Qb3 d2 Bd3 d1R Ne2 g3 Nf4 g2 Be4 g1R Nd3 e2 Qa2 Nf6 Bg5 Rg2 Rg1 Nfd7+ Kd5 c5 Kd6 c4 f6+ Kg8 f7+ Kg7 Rf1 c3 Rf3 c2 Rg3 Rf1 Nc5 c1R Qb2+ Rc3 Qc1 Rf6 Ra3 Rc4 Raf3 Nc6 Rf4 Rhh6 Rf5 Kh8 Rf1 Bg7 e8B Nde5 Bd7 Rg8 f8Q Rf4 Qf6 Rd8 e7 Rc3 e8B Nc4+ Ke6 N6e5 B8g6 Rd3 Qf7 Rd6+ Ke7 Rh4 Ba8 Rhd4 Bae4 Rc6 Qe6 Rcd6 Rf7 Kg8 Qd5 Bh8 Rf8+ Kg7 Qe6 Nd2 Qb3 Ndc4 Qa2 Rc6 Bge8 Rhf6 B8g6 Rfd6
bb4B1/P1QqKnR1/3N2p1/P2b1BP1/5q1n/p3Qb2/NPr2P2/1BB3k1 w - - 0 1 illegal: No proof kernel
2NnnNN1/3RQ2b/p2q2Pq/r1P5/1P1k3n/4pK2/4PPQ1/qNn1B2B w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 g4 Nh6 b4 Ke8 g5 Ng8 Ra3 Nc6 Rg3 Nb8 Rg4 fxg4 Bf4 a6 Bd2 Ra7 Bc1 Rb7 Na3 Rb6 Nb1 Rf6 gxf6 Qb6 Bd2 Qa5 Bc1 Qd8 h4 g5 Be3 g3 Bc1 g4 Nh3 Bh6 Ng1 Bg5 hxg5 Kf8 Bh3 Kf7 Bf1 Ke8 c4 Kf7 b6 Ke6 c6 Ke5 f7 d5 f8Q h5 c7 h4 b7 d4 Nd2 g2 Qf3 d3 Qf5+ Kd4 Qf7 e5 Rh2 e4 Qe8 h3 Nb1 e3 Na3 g3 Qf8 Bf5 c8N Nf6 Nb1 Bh7 g6 Nc6 b8N Ne8 Qe7 Qd6 Bd2 Nd8 Nd7 Rf8 Qc1 Rf5 Nf6 Ra5 Rh1 h2 Nh3 g1Q c5 Qg2 Nf4 Qh3 Ng8 g2 Qd1 g1N Bg2 Nf3+ Kf1 Ne5 Be1 d2 Qb3 Nd3 Ne6+ Ke5 Qc2 d1Q Nf8+ Kd4 Rg1 Qh4 Bh1 Nc1 Kg2 Qh6 Qa2 Qa4 Kf3 Qa3 Qae6 Qc3 Qh3 Qa1 Bg2 h1N Qh2 Ng3 Bh1 Nf5 Rg4+ Kd5 Qg2 Qa3 Re4 Qa1 Re6 Kd4 Rf6 Qdh2 Rb6 Qb8 Rb7 Qd6 Rd7 Nh4+
1R2n3/1R1b1K2/3kpPNp/1bR4P/1BP2NPn/1P3qRQ/n6b/Q2b2q1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 a5 e4 f4 Bd3 Ra6 Be2 Rf6 Bf1 Rf5 exf5 Bb7 Nh3 Ba6 Ng1 Bc8 g4 h6 f3 g6 f6 Rh7 Bd3 Rg7 Bf5 gxf5 Qd4 Rg5 Qd1 Rh5 g5 Rh4 Ne2 Bg7 Ng1 Rg4 fxg4 Bf8 Ke2 d5 Kd3 Kd7 Kd4 f3 Ke5 a4 h4 f2 g6 f1B h5 a3 b6 a2 g7 f4 b7 d4 Bd2 f3 Ne2 f2 Rg1 d3 Na3 Na6 b8R Qb6 Nf4 Nc7 Rg3 Ne8 Bb4 d2 Rb1 a1N Nc4 Nb3 c6+ Kc7 Kd5 Nc1 Ne5 Na2 Neg6 Bb5 c4 f1Q Qf3 d1B Ke5 Bca6 Ke6 Bc8+ Kf7 e6 Qc3 Ne7 g8Q Nf5 Qa3 Kd8 c7+ Kd7 Qh7 Qbg1 Qa4 Nc3 Qa1 Nh4 Rb7 Na2 Rb8 Bb7 c8R Qf3 Rc5 Bc8 Rh3 Qfg2 b3 Q1h2 Nd3 Qf3 Nh8 Bc2 Rd1 Qc6 Qe4 Bd6 Ng6 Bg3 Qg2 Qg1 Ndf4+ Qd5 Rd3 Bh2 Rhg3 Bd1 Rd2 Qd3 Qh3 Qd5 Rc6 Qd3 Rcb6 Qd5 R6b7+ Kc6 Rdd3 Qf3 Rd5 Bd7 Rc5+ Kd6
2NNrR2/2Q1PPB1/pPn4p/3pbP2/bkB3B1/4Br2/K5PQ/1r2nr2 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 h4 Ba6 hxg5 Bb7 b6 Bc8 b4 e5 d4 e4 b5 Qc7 Ra4 Qe5 Rb4 cxb4 dxe5 Ke7 Qf3 Kf7 Qd1 Ke8 Kd2 Ke7 c4 d5 Kc2 e3 Kb3 a6 f4 h6 c5 e2 e6 e1R g6 Bb7 g7 Bc8 c6 Kd6 e7 Kc5 c7 Nd7 f6 Re4 b7 Re6 b8B Bb7 c8B Re4 b6 Re3+ Nc3 Rf3 Ka2 Ne5 Nh3 Nd7 Bc4 Rd3 Qc2 Bc6 Ng5 Ba4 Rf1 Rf3 Nf7 Ne5 Nd8 Nd3 Be5 Ne1 Bg4 Rh7 Nb5 b3+ Kb1 b2 Be3+ Kb4 Nd6 Rh8 Ka2 b1R Nc8 Rb8 f7 Nf6 g8Q Bg7 f5 Nd7 B5d4 Be5 Rg1 Bd6 Bg7 Ne5 Rh1 Nc6 Rh5 Bf4 Rg5 Rb7 Qe8 Rc7 Qd7 Rb7 Qc7 Be5 Qe4 Rb8 Qf4 Rg8 Qh2 Rf1 Bf6 Rg6 Bh8 Re6 Rg8 Rg6 Bg7 Ra8 Bd1 Rg3 Bg4 Rgf3 Rf8 Kc3 Nb7 Na5 Ncd6 Re8 Nd8 Kb4 Nc8 Nc6
3r4/2kppR2/2P1PPPR/6n1/n1Q2K1P/1nr1p3/p2BNQR1/1N1b1Rq1 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Na6 e4 Qc7 e5 Nb8 Bd3 Qd8 Be4 fxe4 g3 h5 Be3 g5 Bc1 h4 gxh4 g4 Bf4 g3 Qc1 g2 Qd1 Bh6 Bd2 Bf4 Bc1 Bg3 hxg3 Rh6 Ra4 Rh7 Ra1 Rh8 Ke2 a5 Ke3 a4 b4 a3 f4 a2 c4 Ra6 b6 Nf6 f5 Ra3+ Kf4 e3 b5 Ba6 b7 Ra4 c6 Ra3 e6 Qb6 g4 Kd8 c7+ Ke8 c8Q+ Qd8 b6 Ra5 g5 Ng4 c5 Ne5 f6 Nf7 Qe1 Ra3 Bd2 Nc6 b8R Rc3 b7 Na5 Rh2 Be2 Qf2 Bd1 Ne2 g1N Rg2 Nb3 g6 Ng5 Qc6 Qc8 Qe4 Kd8 c6 Kc7 Qc4 Rd8 Ra8 Qb8 Ra5 Ne4 Rh5 Nf3 Rh8 Nfg5 Rh6 Qc8 b8R Nec5 Ra8 Qb7 Rb8 Na4 Ra8 Rg8 Rf8 Qb5 Rf7 Qd5 Rg1 Qh1 Rg2 Qg1 Na3 Bc2 Rf1 Bd1 Nb1 Rd8
4N1Rn/NpBK3k/PN1P2b1/1P2Q1pr/1pP4p/2n1P2p/R2n1qN1/3Q4 w - - 0 1 illegal: Other
K4BQ1/2Rr1Q1n/1q1qp1r1/P2PPR1P/bqBr4/7R/2P1nb1R/Nb3k2 w - - 0 1 illegal: No proof kernel
Nq4b1/bn6/2B2r1r/1RKpB2q/1Q1P2P1/PP5n/rQ3Pq1/b2k1BBN w - - 0 1 illegal: No possible last move
Q2r4/n2rb1P1/1B2P2n/2P1pB1Q/1K5q/2nRP1P1/rQQb2bR/1Nb3k1 w - - 0 1 illegal: No proof kernel
QRb1Qq1b/P2R1P2/bBQK1b2/3nnQ2/P1r1NP2/1N1q1p2/1k3P2/3r2b1 w - - 0 1 illegal: No proof kernel
3Q1n1R/q1PQnQ1b/1rq1r1Qp/n2PK1nP/P6B/4b3/1Rb2P1N/4kN2 w - - 0 1 legal: proof: e4 a5 g4 f5 gxf5 d5 exd5 a4 Bb5+ c6 b3 cxb5 bxa4 Kd7 a5 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 c4 Kb4 d4 e5 h4 g5 a4 g4 a6 g3 c5 h6 a7 g2 f6 Qa5 h5 Ne7 d6 Bf5+ Kf3 e4+ Kf4 e3 f7 e2 d7 e1Q d8Q Bh7 d5 Qc3 c6 Nd7 c7 Rb8 a8Q Qc6 Na3 Kc3 Nc4 b4 Rh4 b5 Nf3 g1N Nd4 b3 Qa6 b2 Nf3 b1B Qa7 b4 Qf1 b3 Ra2 b2 Qh3 Rb6 Nh2+ Nf3 Ne3 Ng5 Qa6 Bbc2 Rg4 b1N Rb2 Na3 Rg1 Bg7 f8Q Nc4 Qf7 Nf8 Qhd7 Bd4 Nef1 Kd3 Bd2 Ke2 Bc3 Bc5 Bf6 Ke1 Rg3 Rg8 Rg4 Rg6 Rg2 Nd6 Ke5 Nb7 Qd3 Qa7 Q3f5 Nh3 Bh4 Na5 Rg1 Rd6 Rg8 Be3 Rh8 Ng5 Q5g6 Re6+
1rr5/qRbk4/q3pRPQ/BR2P1N1/n4nP1/4rb2/B2P2PR/1Kr3Qq w - - 0 1 illegal: No proof kernel
QQ6/Rrqb1P2/2P1R3/2p1PK1Q/n1P2NQ1/n2b1q2/kb1NPbB1/5n1r w - - 0 1 illegal: No possible last move, all moves rejected
1rR2n1b/kr1QnPq1/P3P1N1/3p4/3NN3/3PPn1Q/K2r2R1/1B2qNnb w - - 0 1 illegal: No proof kernel
2QNRnN1/3rbb2/6rB/P1nNpK2/1P3P2/Q1qn1Pq1/1n2PbR1/N3k3 w - - 0 1 illegal: No proof kernel
2KN2k1/1n3r1p/qPn2BN1/RQ2p3/3NPb2/3b3r/PQ3PRP/2b1nrN1 w - - 1 2 legal: proof: c4 f5 g4 d5 gxf5 a6 cxd5 Nd7 b4 Nb8 b5 Be6 Bh3 Bd7 Bf1 Bc8 b6 Ra7 Bg2 Nd7 Be4 Ra8 Bd3 Nb8 Qa4+ Qd7 Bb5 axb5 Qa7 Qd6 Qxb7 Qd8 e4 Kf7 Ke2 g5 Ke3 e5 d4 g4 d6 b4 f6 g3 d5 b3 d7 c5 d6 b2 Qc6 g2 Qb5 c4 Nc3 b1R Kf3 Nh6 Nce2 c3 Bg5 c2 Nd4 Rf1 Rb1 Nf5 Kg4 c1B Rb4 Bh6 Ra4 Nc6 Ra5 Qc7 d8N+ Kg8 d7 Nd6 Bh4 Nb7 Kf5 Ra6 Ke6 Bhf4 Qb2 Qb8 Bg5 Qa8 f7+ Kg7 f8N Kg8 Bf6 Qa7 Nh3 g1N Ng6 Nf3 Rg1 Ne1 Rg2 Qa8 Ng1 Qa7 Rd5 Ra3 Ra5 Rh3 Qb5 Nc5+ Kd6 Ba6 Qb2 Nb7+ Kc7 Bd3 Kc8 Bc2 N8e6 Bd3 d8Q+ Kf7 Qb5 Rf8 Qb2 Qa6 Qe8+ Kg8 Nd8 Qc4 Qd7 Qa6 Qd5+ Rf7 Qc5 Bc2 Qcb5 Bd3
Rn6/P3q1pP/Qq1N2P1/1nkbBKbB/3NQ1pn/PB6/1r2P1B1/3b3r w - - 0 1 legal: proof: b4 c5 f4 h5 d4 e5 fxe5 a5 dxc5 Qg5 bxa5 Ke7 g4 Qe3 a3 Ke8 g5 Qh3 Ra2 Qe6 Rb2 Qb6 Rb4 Qd8 Rg4 hxg4 Kd2 Ke7 Kd3 d5 c4 b5 h4 f5 a6 f4 e6 f3 c6 Kd6 c7 d4 Ke4 f2 c5+ Kc6 e7 d3 e8B+ Qd7 a7 b4 h5 b3 h6 b2 Bg2 f1Q Qc2 d2 Nf3 d1B Nc3 b1N Nb5 Rh7 Bf4 Ne7 Bh5 Qf2 Nd6 Nf5 Be5 Bb7 c8B Qe7 Be6 Nd4 Bb3 Nb5 Kf5 Nd2 Rh3 Qd4 Rh2 Qb4 Rh3 Qa5 Rh2 Qb6 Qe4+ Kd7 Nd4 Bd5 Rh4 Nf3 Rh3 Qed8 Rh2 Be7 Rh3 Bf6 c6+ Ke7 c7 Kd7 Nc2 Kc6 Nd4+ Kc5 c8Q+ Qdc7 Qa6 Qe7 Ba2 Nc6 Rh4 Rb8 Bb3 Rb7 Rh1 Nb8 Rf1 Rh8 Rf2 Rd8 g6 Bg5 h7 Rf8+ Nf7 Ng1 Nf3 Nc6 Bc2 Nc3 Nd4 Qbd8 Rf1 Rb2 Bb3 Qb6 Rf2 Bh4 Kf4 Bg5+ Kg3 Nb5 Nd6 Rf3+ Kh2 Re3 Rf8 Rd3 Ra8 Nb8 N6f5 Rf3 Nd6 Rf1 Kg3 Re1 Bc2 Nf3 Bb3 Bh4+ Kf4 Bg5+ Kf5 Rg1 Nf7 Rh1 Nd6 Nh4+
1K3k1B/7B/p2qR1p1/1bP1B1PP/r4P2/1PR1nn2/Q1bbq2r/2n2NQB w - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 c4 Nc3 f6 d3 Ba6 dxc4 Qc8 c5 Qc7 g5 f5 exf5 Bb7 Nd5 Qd8 Ne3 Bc8 Ng4 hxg4 Ke2 e5 Ke3 d5 h4 g3 f4 a6 c4 d4+ Ke4 d3 f6 g2 h5 d2 f7+ Ke7 b6 Nc6 b7 Qb6 Kd5 e4 b8B e3 b3 e2 Bb2 e1Q Rh3 Qe2 Rc3 Bd7 Nf3 g1N Nh2 Nf3 Be5 Ncd4 c6 Nh6 c7 Rb8 c8B Nhf5 Bg2 Bb5 Qg1 d1B Bh1 Bc2 Nf1 g6 Re1 Qf6 Be6 Ne3+ Kc5 Rd8 Kb6 Bg7 Kc7 Rhe8 c5 Kf8 Bc4 Rd5 Kb7 Qc6+ Ka7 Re6 Kb8 Bf6 Ba1 Bd8 Bh8 Ba5 Bb2 Re4 Ba1 Ke7 f8Q+ Kd7 Qg8 Qd3 Qg7+ Ke8 Qc7 Nd1 Bb2 Rde5 Bg8 Qd6 Bh7 Ne2 Rc4 Bd2 Bg2 Nc1 Bh1 Kf8 Bd4 Re2 Rc3 Rh2 Re3 Rd5 Re6 Qe2 Bdf6 Ne3 Be5 Qd7 Qb6 Rd4 Qa5 Re4 Qa1 Ra4 Qa2 Qd6+
1bbnR3/1Pnq1q1k/N3ppr1/1NB1rN2/b1PPQ2P/3KNPR1/Q6r/8 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 c6 b4 Qa5 b6 Be6 b5 Bd7 b7 Qd8 b6 Bc8 Bb5 cxb5 Ke2 a5 d4 g5 c4 a4 d6 g4 f3 g3 h6 g2 h3 f6 h7 Kf7 d7 Kg6 Nd2 b4 Qe1 e6 Ba3 b3 Kd3 b2 Ne2 g1R Ng3 Na6 b8N Nc7 Na6 Nh6 Bc5 a3 Nf5 a2 Qe4 Nf7 Nf1 Bd6 N1e3 Qg8 b7 Nd8 Re1 a1Q h4 Qa4 Ra1 Qf7 Rh3 Rg5 Rg3 Rg8 h8N+ Kh7 Rag1 R8g6 R1g2 Qg7 Nf7 b1B+ Rc2 Be5 N7d6 Qf7 Nb5 Ba2 Rcg2 Bb3 Na7 Qc6 Nb5 Ba4 Rg1 Nd5 Ra1 Bb8 Ra2 Nc7 Ra1 Qd5 Ra3 Nc6 d8Q Qdd7 Qf8 Nd8 Qd6 Rh5 Qb6 Nc6 Qa5 Nd8 Qd2 Rhg5 Ra1 Ra7 Qa2 Ra8 Rh3 Rg2 Rg3 Rh2 Rag1 Rh6 Rg8 Rg6 Re8 Ra7 Nb4 Ra6 Rg3 Rd6 Na6 Rd5 Bb4 Re5 Ba3 Rd5 Bc5 Re5
3bb3/k5p1/P3BrPr/Q1n1NrPq/1KR4Q/1P1n2Q1/NpP4R/1r3r1Q w - - 0 1 illegal: No proof kernel
2R5/1P3r2/brBN4/N1p1pK1k/rnBBQb2/2P1P3/P2r3P/Q3bBnq w - - 1 2 illegal: No proof kernel
5n2/Qq1pR1b1/NNP2Q1r/3R1n2/3bB2Q/bb1P1p2/k1PPrP1K/1q4Q1 w - - 1 2 illegal: No proof kernel
k7/qqpKP1P1/4b1nP/q4Nbb/r1N2p2/B3n1QN/2PQRP1N/1n4R1 w - - 0 1 illegal: No proof kernel
3QR1nN/B2R1N1P/1P1R2P1/1P3qbb/7K/br2pppR/1r2n1P1/2Q2rk1 w - - 0 1 illegal: No proof kernel
4Q3/1n1Pbr2/k1PpQ3/3K4/4pRPp/n1NRbR1B/1nrP2qP/3r1N1R w - - 1 2 legal: proof: b4 c5 a4 b5 axb5 g5 f4 Bh6 fxg5 Bg7 b6 Bf8 e4 d6 e5 Kd7 e6+ Kc6 b5+ Kd5 Ba3 Bd7 exd7 Ke6 Bb4 cxb4 Ke2 Kd5 Kd3 Kc5 Ke4 a5 g4 f5+ Kf4 h5 c4 e5+ Ke3 a4 g6 h4 b7 Kb6 g7 a3 Nh3 a2 Bd3 b3 Ng1 f4+ Ke4 b2 Qe1 f3 Kd5 f2 Nf3 f1R Be2 Nc6 Ng1 Nh6 g8Q Be7 Qe8 Na5 b8R+ Nb7 Nc3 Rf7 Bf1 b1N Nge2 Na3 Bh3 Nf5 c5+ Ka5 b6 Ka6 Rc1 a1B Ng3 Rg8 Nf1 Ne3+ Ke4 Nd1 Kd5 Rgf8 c6 Nb2 Qe3 e4 Qh6 Qc8 Qe6 Qc7 Rd8 Qb8 Re1 Qa7 Re3 Rb8 Rd3 Ra8 Ng3 Rf1 Rc8 Rd1 Nf1 Rf7 Rd8 Na5 b7 Qg1 b8R Qg2 Rb3 Rb8 Kd4 Rb5 Rb8 Rc5 R8b5 Nb7 Rf3 Rh5 Rbf5 Rg5 R5f4 Rc5 Nd5 Rc2 Nc3 Nd3 Kd5 Bb2 Nb5 Bd4 Rc3 Nb2 Rcd3 Bb6 Nc3 Be3
k3B2b/5pB1/b1P2P1Q/N2PR3/1PR1n2r/QpnrpKP1/2q4q/1R1nR3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 d5 exd5 g5 hxg5 c4 Nc3 Ba6 Ne4 Bb7 Nc5 Ba6 axb5 Bb7 b4 Bc8 Nb3 cxb3 Ke2 Kd7 c4 Kc7 f4 Kb7 d4 h5 d6 a5 b6 e5 g3 a4 d5 e4 f5 e3 c5 h4 d7 a3 g6 h3 g7 a2 Rb1 a1Q Kf3 h2 Bb2 Ra3 Bb5 Ra2 Qc1 Be7 Ne2 Rh4 Re1 h1N Nd4 Nf6 g8Q Nc6 Qg5 Ne4 Qh6 Qc7 d8R Na7 Nc6 Ka8 Na5 Bf6 Be8 Bh8 Bg7 Qb2 f6 Qh2 Qa3 Rd2 Rd6 Rd3 Rc6 Nhf2 b7+ Kb8 Re6 Nb5 Re5 Ka7 b8R Nbc3 Rb6 Ba6 Rd6 Nfd1 c6 Ka8 Rde6 Qd6 Re7 Qc5 R7e6 Nef2 Re4 Qc4 R6e5 Qc5 Rd4 Nfe4 Rc4 Na4 Rd4 Qcc2 Rc4 Nac3
3RNB2/4P2b/n1PK2P1/n3p1Q1/P2qP2r/1rN1Nqpp/1b2QRq1/k2N4 w - - 0 1 illegal: No proof kernel
b1r3q1/1kN1N1B1/1p1Pp3/Q2n2qK/4nP2/r1b1Rpb1/NP2PP1Q/2R1N3 w - - 2 3 legal: proof: c4 f5 a4 d5 cxd5 b6 g3 Be6 a5 Qc8 a6 Qb7 axb7 Bc8 Na3 a5 Nh3 h5 Ng1 f4 Bh3 f3 Bg4 hxg4 Nc2 a4 Na3 Ra5 Nb1 Rc5 Nh3 Rc4 Ng1 Rf4 gxf4 Rh5 Na3 Rh7 Nb1 Rh8 h4 Kd7 d4 g5 h5 c5 h6 Kc7 h7 e6 Nh3 g3 O-O g2 Kh2 g1B+ Kg3 g4 Kh4 g3 Na3 g2 Qd2 c4 Nc2 a3 Ng5 c3 Ne4 Na6 b8N Nc5 Na6+ Kb7 Qe1 a2 Nc7 Bh2 Be3 g1Q Rd1 a1R Rd3 Ne7 Bd2 Rg8 h8Q Ra8 Re3 Kb8 Qa1 Qg6 Rb1 Ra7 Ne1 c2 Nc3 Bb7 Qa3 c1Q Na2 Ba8 Bc3 Qd1 Rc1 Bg7 Qb4 Ra4 Qa5 Ra3 Qh6 Qe8 Kg5 Bg3 Qh2 Qd8 Kh5 Qf8 d6 Ne4 d7 Kb7 d5 Qd4 d6 Nd5 Nb5 Bh8 Nc7 Qdg7 Bf6 Qfe7 Bd4 Rc8 Be5 Qg8 d8N+ Kb8 Nc6+ Kb7 Bd4 Qeg7 Ne7 Q7f8 Bc5 Bc3 Bd4 Qfg7 Bf6 Q7f8 Bh8 Qf6 Bg7 Qg5+
n1rn3R/2P1PP2/Q3NqBP/2p3p1/1K1N4/1QPbbQ2/Q2bb1pR/4r1k1 w - - 0 1 illegal: No possible last move, all moves rejected
3q4/1k1pB1b1/pb1q4/Qr2r2N/1pRN1rPN/P1NPK1P1/PR6/1b2Q1n1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h3 c6 Bd3 g4 hxg4 Na6 Nh3 Nc7 Ng1 Nb5 Bf1 Na3 Bb5 cxb5 bxa3 Qc7 Rh2 Qa5 Rh1 Qd8 Ke2 e5 f4 h5 c4 a6 f6 h4 f5 h3 c5 b4 g3 b5 c6 e4 c7 h2 Nc3 b3 Bb2 e3 Qb1 Rh5 Kf3 e2 Kf4 e1B Nh3 Nh6 Ke3 Nf7 Nf4 Bb7 c8Q Ng5 Qc7 Nf3 Qa5 Bg7 f7+ Ke7 f8N Kd6 f6 Kc6 f7 Ng1 Bc1 b2 N8e6 b4 f8N Rb8 N8g6 Re5+ Ne4 Ba8 Nh5 Rbb5 Nd4+ Kb7 Nh4 Bf2+ Kf4 Rec5 Nc3 Rd5 Qe4 b1Q Qe1 Qg6 Rb1 Re5 Rb3 Qd6 Rb2 Nf3 Rg1 h1R Rg2 Bg1 Re2 Rh2 Re4 Rf2 Ke3 Bh2 Qe2 Ng1 Qd1 Rf4 Qe1 Ka7 Nce2 Bd5 Nc3 Kb7 d3 Bb3 Bd2 Bc2 Nde2 Rec5 Rc4 Bb1 Nd4 Nh3 Ke2 Re5+ Be3 Ng1+ Kd2 Rf8 Bg5 Rf4 Be7 Ne2 Qf2 Bg1 Qe1 Bf2 Nb3 Bb6 Nd4 Ref5 Ke3 Ng1 Rd2 Rfd5 Rb2 Re5+
1N4R1/1p2PQ2/n1PQ2qB/n1b2B1r/1B1p1pP1/1n1P1RnK/2r1BP2/n1k5 w - - 0 1 illegal: No proof kernel
R1R5/b4n2/2P1Np1p/bQK1B3/2b1rP1k/nB3RbP/p2P1QP1/Rb2q3 w - - 0 1 illegal: No proof kernel
5k1n/Pqq1pPR1/5Nn1/bKpBb1p1/1BPQn1Q1/1R4Pb/4P2R/5Rq1 w - - 0 1 legal: proof: d4 b5 b4 f5 g3 c5 d5 a5 bxa5 f4 Na3 Ra6 Nb1 Rc6 dxc6 f3 h4 g5 h5 h6 Na3 Rh7 Nc4 Rg7 Ne3 Rg6 hxg6 h5 Ng2 fxg2 Kd2 d5 Kc3 h4 a4 h3 f4 h2 c7 Bg7+ Qd4 Qd7 f5 Be5 f6 Ba6 g7 Nh6 Bd2 Bc8 a6 Nf7 a5 Nc6 a7 Nh8 Nh3 g1B a8R Be3 a6 b4+ Kb3 Qd8 Ka4 b3 c4 b2 a7 b1Q Bg2 Qb7 Nf4 Bh3 Bb4 Bd2 c8Q Kf7 g8R Qdc7 Rhb1 h1Q Qg4 Qg1 Rb3 Bc3 Rf1 Be1 Qf2 d4 Nd5 d3 Qfd4 d2 Rac8 d1N Bh1 Qd8 Rg7+ Kf8 f7 Nf2 Nf6 Ne4 Ra8 Qdc8 Rb8 Qc7 Rb6 Q8b7 Kb5 Nd2 Bd5 Ne4 Ba3 Ba5 Bb4 Bf4 Rf2 Ne5 Rh2 Neg6 Rb1 Be5 Rf1 Qa8 Ra6 Bb6 Ra3 Qab7 Rb3 Ba5+
2r3k1/1Pp1prp1/2q1P3/2P3r1/4BPP1/4BK1Q/r1BN1nq1/Q1R1BbrR w - - 0 1 illegal: No proof kernel forced: wxDB
2b1B3/3bq1K1/1k2B3/p2n1pRB/PPrr3n/R1B4p/1p1PPN1P/1Q3Q1n w - - 1 2 illegal: No proof kernel
1Q3nq1/B4R1B/QP5p/nP1N4/k3pp1P/q2b1Pbr/2RPp1KQ/Q5b1 w - - 0 1 illegal: No proof kernel
Q1nk1KQ1/1p6/n2N2b1/P4prB/3pPP2/1PrB2pp/1P2qB1B/3b1N1R w - - 1 2 illegal: No proof kernel
N5N1/2PQP1nk/pb1R1Qp1/1b1Q3r/P3p3/2p1P3/1pKP1qr1/Rr4QB w - - 0 1 legal: proof: c4 h5 b4 c5 bxc5 h4 c6 d6 c7 h3 gxh3 Rh6 h4 Rh7 h5 Rh8 f4 e5 c5 e4 c6 Nd7 Ba3 Ne5 Bc5 dxc5 fxe5 Be6 Nc3 Bh3 Nb1 Bc8 a4 f5 h4 Kf7 h6 Kg6 h5+ Kh7 e3 b5 e6 c4 e7 a6 Na3 c3 Bg2 b4 Nc4 b3 Ne2 f4 Nb6 b2 Nd4 f3 Nf5 Ra7 Na8 Be6 c8Q Bd7 c7 Be8 Qd7 f2+ Ke2 Nf6 Qg1 Qb8 Kd1 f1R+ Kc2 Rb1 Rh3 Rb7 Bh1 Rg8 Rg3 Rb4 Rg6 Rb5 Qd5 Bc6 Qd7 Ne8 Rd6 Kh8 h7 Ra5 Re6 Bb5 Nh6 Qb6 Rg6 Qf6 Qd5 Qf2 Rf6 g6 Rd6 Rg7 Ng8 Rf7 Qdg5 Rf4 Qf5 Kg7 Qd7 Rg4 h8Q+ Kf7 h6 Rg2 h7 Bg7 Qc1 Bd4 Qg1 Bb6 Qe5 Ng7 h8Q Be2 Qd4 Rh5 Qh6 Bb5 Qg5 Ne8 Qdd5+ Kg7 Qge5+ Kh7 Qf6 Ng7
nNr5/Bp5P/nq2PpP1/R4KQ1/pPQ5/2pBRP2/2bB1npk/B3b3 w - - 0 1 illegal: No proof kernel
bb5r/2QK1npR/1QpN2P1/1n1qQ3/p4r2/P1P5/Pn1kPB1Q/r3qB1R w - - 0 1 illegal: No proof kernel
1n1rN3/B1N3NP/1N3q2/2RNPBK1/2bp1P1R/1n2P2P/1q5b/2k1nq1r w - - 0 1 legal: proof: b4 c5 bxc5 b5 g4 h5 gxh5 Nc6 a4 Nb8 axb5 Qb6 Bg2 Qc7 Bf1 Qd8 e3 e5 d4 f5 dxe5 f4 Qe2 f3 Kd2 fxe2 c4 Kf7 f4 Ke6 c6 Kf5 b6 Ke4 b7 e1N h6 d5 c5 g5 c7 a5 c6 a4 h7 d4 Nf3 a3 Nc3+ Kf5 Bh3+ g4 Ng5 a2 Ba3 Nf6 Rc1 a1Q Bc5 Be7 Ke2 Be6 c8N Ne4 c7 Nd2 Nb6 Nb3 c8N Qb2+ Rc2 Ra7 Ncd5 Ra1 Kf2 Qd6 Kg3 Rd8 Kh4 Bf7 Rc3 Qf6 Rc1 Be6 Kh5 Bg8 Ne6 Ke4 Ng7 Kd3 Nd6 Kd2 Nde8 g3 Bf5 g2 Rc3 g1Q Rc4 Nd7 b8N Qf1 Na6 Nb8 Nac7 Be6 h3 Kd1 Rg1 Rc1 Rg4 Rb1 Rb4 Kc1 Rb5 Ra1 Rh4 Rb1 Nb4 Bc4 N4d5 Qc6 Rg4 Bh4 Ra5 Bg3 Kg5 Bh2 Rh4 Qa3 Nba8 Qa6 Ba7 Qb2 Rc5 Qf6+ Kh5 Qg1 Bd3 Ng2 Nab6 Kd2 Nce6 Rd1 Be4 Kc1 N6c7 Rf1 Bg6 Ne1 Bf5 Qgf2 Kg4 Rh1 Kh5 Qf1 Kg4 Qf8 Kg5 Qf6+
R2b1N2/3Pp3/5B1n/3p4/KP3r1p/1NnN1qNP/PqkNBP1q/2b1R3 w - - 0 1 legal: proof: c4 a5 g4 c5 e4 f5 gxf5 b5 b4 a4 e5 d6 e6 Bd7 exd7+ Kf7 cxb5 c4 Qb3 axb3 d4 Ra7 Na3 Rc7 Nb1 Rc5 dxc5 Qe8 Bg5 Qc8 Bc1 Qd8 Kd2 Kf6 Kc3 Ke5 h3 Ke4 f6 g5 b6 h5 c6 h4 b7 g4 c7 b2 c8N g3 f7 g2 Na7 d5 Na3 b1Q N7b5 Na6 b8N Bh6 f8N Bf4 Nc6 Bc7 Nbd4 Nh6 Nge2 g1Q Bb2 Qh2 Ne5 Nc5 Nb3 Rg8 Rg1 Rg4 Rg2 Rf4 Nd3 Qe8 Rg3 Bd8 Rg8 Qh5 Rh8 Qf3 Rg8 Qd1 Nb1 Qe1+ Kc2 Na4 Bf6 Nc3 Kb2 Qd2+ Ka3 Nb5+ Ka4 c3 Rh8 Qb2 Rg8 c2 N1d2+ Kf5 Re1 c1B Ng6 Bb6 Ra8 Bd8 Nc4 Ke4 Nf8 Qc3 Na1 Qe5 Ng3+ Kd4 Be2 Kc3 Nb3 Kc2 Ncd2 Qc3 Nh5 Qb2 Ng3 Nc3+
1n1NkN2/N1P5/r3b1br/4n1PB/Pnq1p2b/1K2PNRb/3P3R/2Br1N2 w - - 0 1 illegal: No possible last move, all moves rejected
b3N3/2p1R3/Bp1B1K1n/PPn1rrBB/1PrP1R2/1r1P3r/kB3N2/1q4b1 w - - 0 1 illegal: No possible last move
2BnKR2/5b1p/P1R1nNr1/bPP1BN1N/4Np2/5bP1/rNr4P/2b2kq1 w - - 0 1 illegal: No proof kernel
1k2b1N1/2q1N2B/Pbr3PR/1RNn1Nqp/r1rPr2P/2P1p1n1/5B1K/6N1 w - - 0 1 legal: proof: e4 a5 f4 d5 exd5 g5 fxg5 c5 b4 Bh3 bxa5 Bd7 Qg4 Bc8 Qb4 cxb4 Kf2 Kd7 Kg3 Kc7 d4 h5 h4 f5 a4 b5 g6 e5 g7 e4 c3 f4+ Kh2 b3 g4 e3 a6 b4 a7 f3 a5 b2 g5 f2 Ra2 b3 Nd2 b1R Bd3 f1Q Ne4 b2 Bd2 Nf6 g8N Nc6 Nd6 Ne7 Bh7 Bd7 Nf5 Be8 Be1 Qb5 Bf2 Ne4 d6+ Kb7 d7 Nd5 g6 Ng3 Ra4 Rc8 a8N Rc4 Nc7 Ra1 Ne6 b1R Nc5+ Kb8 a6 Ra3 Ra5 Qc7 d8N Raa4 Nc6+ Ka8 Nce7 Kb8 Ne4 Rc6 Nc5 Rbb4 Kh3 Rc4 Kh2 Qbb7 Rb5 Qf4 Nf3 Qg5 Rhb1 Qb6 Ng1 Qb7 Nc8 Bd6 Nce7 Bc7 Ngh6 Rf8 Nhg8 Rff6 R1b4 Rfe6 Rb2 Re4 R2b4 Ka8 Rb2 Qc8 Rb8+ Ka7 R2b5 Bb6 Nf6 Bf7 Bg8 Qd7 Rf8 Be6 Rf7 Ka8 Rh7 Kb8 Rh6 Qc7 Bh7 Bf7 Nfg8 Be8
R2R4/4p3/RP1R2p1/P3B1nq/1b1b2N1/1kpB1NK1/1n1PPnP1/q2rR2r w - - 1 2 illegal: Other
4B2r/kNP4p/pR6/2NPpb1R/1rP2B1r/1Nbn2rN/P4NPq/3K2n1 w - - 0 1 legal: proof: e4 c5 h4 d5 exd5 g5 hxg5 f5 b4 Nh6 bxc5 Ng8 Qg4 Be6 Qh4 Bc8 Qe4 fxe4 d4 Kd7 f4 Kc7 g6 b5 c6 Kb6 g7 e5 f5 b4 f6 e3 d6 e2 d5 a6 d7 b3 f7 b2 c7 Nc6 Bf4 Bb4+ Nd2 Ka7 f8N Nd4 Nh3 Bc3 Ne6 Ne7 g8N Nec6 Nc5 Nb4 Nf6 Qe7 d8N Bf5 Ndb7 Rag8 Rb1 Rg3 Ng4 Qh4 Ngf2 Qh6 Rd1 b1R Rc1 Rb2 Rb1 Rb3 Ng5 Qh2 Ngh3 Nbc6 Rb2 Rb6 Rb1 Nb4 Rb3 Rh6 Rb2 Rh4 Rb1 Bb2 Ndb3 Nd3+ Kd2 e1R c4 Rge3 Be2 Rg3 Bh5 Ne2 Be8 Ng1 Kc2 Re2+ Kd1 Rc2 Nc1 Bc3 Rb6 Rb2 N1b3 Nf3 Re1 Ng1 Re3 Rg6 Rg3 Rgg8 Rg5 Rg7 Rh5 Rg3 N3a5 Rb5 Nab3 Rb4
nB2B1b1/1R1r4/b1q1P1n1/3Rr2p/rp1PkNq1/B3P3/5P1P/1R1N2BK w - - 0 1 illegal: Other
3R4/1bbR2b1/n3n3/1NnrB1P1/P1BrpnP1/1p2K3/P1k1NP1R/2NR4 w - - 0 1 legal: proof: e4 f5 exf5 d5 h4 a5 c4 g6 cxd5 a4 Qh5 gxh5 g4 Qd6 b3 Qf6 bxa4 Qg5 hxg5 h4 Bc4 h3 Bd3 h2 Ke2 Kd7 f6 Kd6 f7 Ke5 d6 Kd4 d7 c5 d8N b5 Be4 e5 d3 h5 Bf3 h4 Ba3 c4 Bd6 h3 Be7 c3 Be4 b4 Bh7 c2 Bf5 c1B Nb7 e4 Nd6 b3 Nc3 Bg7 f8R Na6 Rb1 Bf4 Rf1 Bb7 Nc8 Nf6 Rf7 Nd7 Nd6 Ndc5 Be6 Rad8 Bc4 Rhe8 Bf6+ Re5 Rd7 Bg3 Be7 Rd5 Rd1 Bf4 Nf7 Bd6 Ne5 Bc7 Bd6 Nb8 Nb1 Nba6 Na3 Kc3 Nb5+ Kc2 Ke3 Rd4 Ne2 Rd5 Rhe1 h1N d4 h2 Nd3 Ng3 Be5 h1N Ndc1 Nh5 Rg1 Nf4 Rg2 Nfe6 Rh2 Rd6 d5 Ng3 Rhh1 Nh5 Rh2 Rb6 d6 Nhf4 Re7 Rc6 d7 Rd6 Rf7 Rd5 Re7 Rf8 d8R Rd4 Red7 Rf5 Bf6 Rfd5 Be5 Ba8 Nd6 Bc6 Nb5 Bb7
b1r2N2/4bN1n/Pq2pqBr/2k2nn1/2q4B/1PNR1P2/3NP2P/2RK1rR1 w - - 0 1 illegal: No proof kernel
Br1N2B1/R1nb2BP/2B2P2/n1p5/2P1N2R/r2nq1nP/K2Nr1P1/2b1n1k1 w - - 0 1 illegal: No proof kernel
3N1B2/4B1q1/r1b1NKp1/N2pR2p/2bn3P/3PPR1B/Pb1P2n1/Bk3r1n w - - 1 2 legal: proof: g4 e5 b4 f5 gxf5 a5 bxa5 e4 Ba3 d6 Qc1 d5 Qb2 Nc6 Qb3 Nb8 Bc1 Qd7 Qd3 exd3 cxd3 Qd8 f4 Ke7 Kf2 Kd6 Ke3 Kc5 h4 Kb4 Kd4 c5+ Ke5 b5 a6 h5 e3 c4 f6 g6 a7 c3 f7 c2 f5 Qe7+ Kf4 Ba6 f6 Nh6 Kg5 Nc6 Na3 Nd4 Nb1 Ng4 Rh3 Nf2 Nf3 Nh1 Bb2 c1N Na3 Nce2 Ne5 Nf4 Nc6+ Ka4 Re1 b4 Ba1 b3 Nd8 b2 Nc4 b1B Na5 Ka3 Re2 Qb7 Rf2 Bc2 Rg3 Rh7 Bh3 Ng2 Rf5 Bc4 Re5 Bc5 f8B Rd7 f7 Ba4 Bd6 Bc6 f8B Rf7 Bb8 Rf4 Bbd6 Qg7 Bde7 Rf1 Rf3 Rb8 a8N Rb6 Nc7 Ra6 Nce6 Bd6 Bc3 Bc5 Bb4+ Kb2 Bc3+ Kb1 Bb2 Ba3 Ba1 Qh6+ Kf6 Bb2 Bg4 Qh7 Bh3 Qg7+
1b2BN2/R2K2p1/B1PpPP1p/q2k4/b4BrP/1NR5/Rb1P2nr/Bq1r4 w - - 0 1 legal: proof: b4 e5 f4 c5 fxe5 b5 a4 f5 g4 f4 c3 Nc6 Qb3 Qe7 axb5 Qd8 b6 Nce7 b5 Nf5 Qb4 cxb4 gxf5 Ke7 Ba3 Kf7 Bc1 Ke8 Kf2 Kf7 Kf3 a5 Ke4 h6 Kd5 f3 e4 f2 h4 a4 b7 a3 b8R b3 b6 a2 f6 b2 c4 Ra5+ c5 Qe7 e6+ Kg6 b7 Ra6 c6 Ra4 e5 Kf5 Nf3 Qd8 e7 Rg4 Kd6 Ke4 Ba6 f1R Rh3 Qa5 Nd4 Rd1 Na3 b1Q e6 Rg2 Ra8 Rh2 b8B Bb7 Bf1 Ba6 Rc3 Bb5 Nb3 Ba4 Bh3 Qb4+ Kc7 Kd5 e8B Ne7 Bf1 Nf5 Nc4 Ne3 Ra7 Ng2 Ne5 Bd6+ Kc8 Bc7 Ng6 Qa5 Bb2 Rf8 Ba6 d6 Kd7 Rh8 Nf8 Rg8 Ra8 Rh8 Ba7 Bb8 Be3 Rg8 Ra7 Rh8 Nh7 Rf8 Bf4 Rf7+ Kc8 Rb7 Nf8 Rb4 Kd7 Qf5 Rac1 a1B R1c2 Qe4 Bc1 Rc4 Ra2 Qb1 Ba3 Bb2 Bb4 Bc1 Ba3 Re4 Bb2 Rb4 Ba1 Bb2 Be3 Rg4 Bg5 Rf1 Bf4 Rd1
b2BKRq1/pP1pp2R/1N1nP1p1/2n2B2/PP2r3/k3N1N1/3P2qr/2nRR3 w - - 1 3 legal: proof: f4 g5 fxg5 b5 g4 b4 g6 b3 g7 Nf6 g8N Nh5 g5 Ng3 g6 Nh5 cxb3 Nf4 b4 Nd5 b5 Nf6 h4 Ba6 h5 Bh6 g7 Qc8 Qc2 Ne4 Nf6+ Kd8 Nd5 Ke8 Qd3 Bg5 h6 Qd8 Qg3 Bf6 Qg6 fxg6 g8R+ Kf7 Rh5 Bg7 hxg7 Bb7 Rh1 Bc8 a4 Ke6 b4 Kd6 b6 c5 Rf8 h5 g8R c4 Na3 c3 Ne3 c2 Bb2 c1N Nac4+ Kc6 Bh3 h4 Bd4 Qc7 Bf5 h3 Rg7 h2 Rh7 Nf6 Kf2 Qe5 Kf3 Ne8 Kg4 Qe6 Kg5 Nd6 Kh6 Na6 Kg7 Nc5 Rb1 Bb7 Be5 Nde4 Bc7 Nd6 Bd8 Rc8 Ra1 Ba8 b7 Rc7 Nb6 Qa2 Ned5 Rc8 e4 Qc4 Ne3 Qg8+ Kh6 Rc7 Ne2 Rc8 Re1 h1Q+ Kg5 Qf3 e5 Qg2+ Ng3 Rc7 e6 Rc8 Rhf7 Rh4 Rh7 Re4 Kh6 Rb8 Nbc4 Rc8 Nef1 Kd5 Nb6+ Kd4 Ne3 Kd3 Ng4 Kc2 Ne3+ Kb2 Rd1 Na2 Re1 Ka3 Rad1 Nc1 Rff7 Qe8 Kg7 N5b3 Rf8 Rc5 Bg4 Rh5 Bf5 Rh1 Bc7 Qb8 Bd8 Nc5 Kg8 Rh2 Kg7 Nc4 Kf7 Qc8 Ke8 Qb8 Rf6 Nd6+ Kf8 Ne8 Bc7 Ng7+ Kf7 Qh8 Bd8 Ne8 Rg1 Nc7 Rgf1 Nb5 Rfe1 Qg7+ Ke8 Qg8+ Rf8 Nd6+
1Nq2R2/b1P5/1ppN1R1p/2b2npB/2RBN1PP/1R2bK1r/kP1r2P1/1q6 w - - 2 3 illegal: No proof kernel
2b3K1/3rP1pB/1pB1r1p1/k1PPb2R/4p3/2NnP1b1/1P1Bn1pN/3R2BR w - - 0 1 illegal: Other
1R2N3/1p1Np1B1/k3Bp2/np4n1/B1qb1Pq1/RP1BP2P/1Pb2r2/n1N1K1r1 w - - 0 1 illegal: No proof kernel
K1n1k1Bb/3R1r2/4PP2/2Q1r1RP/PbP2P2/p1r3B1/2n2Nb1/1r2N1B1 w - - 0 1 legal: proof: d4 b5 g4 e5 a4 exd4 Qd3 c5 Qxh7 a5 Bg5 f5 gxf5 c4 axb5 a4 b3 a3 Be7 Qa5+ Nd2 Qa4 bxa4 c3 Nb1 Ra7 Nxc3 Ra6 Nb1 Ra8 Kd2 d5 Kd3 g5 h4 g4 e4 g3 f6 g2 h5 Bf5 b6 Na6 b7 Rd8 b8B Bc8 e5 Bg7 Bc5 Bb7 Nh3 g1B Nd2 Ne7 Qf5 Rf8 Nf3 Nc8 Rd1 Rf7 Ne1 Bh8 c4 Rdd7 Bg2 Rde7 f3 Be3 Nf2 Bd2 Rg1 Bb4 Qg5 Re6 Bh3 Ree7 Be6 Ba8 Qf5 Bc6 Rg5 Bb7 Kc2 d3+ Kb3 d4 Bca7 d2 Bd6 Rg7 Bg8 d3 e6 Ref7 Bh2 Bd5 f4 Bg2 Bg3 Rg6 Rc1 d1R Qc5 d2 Rc3 Ra1 Rd3 d1R Rd7 Rd5 Bb6 Re5 Ba7 Ba5 Bb6 Nb4 Kc3 Rb1 Kd4 Na6 Ba7 Bb4 Bb6 Re4+ Kd5 Rgg7 Kc6 Re5+ Qd5 Rg6 Kb7 Rgg7 Ka8 Rg6 Rf5 Rg4 Bd4 Rh4 Rg5 Rh3 Bh2 Rc3 Bg3 Nb8 Be3 Nc6 Qc5 Nd4+ Ne4 Nc2 Bg1 Rf3 Nf2 Rc3+
3QBnb1/kr2NPn1/3N1q2/1r2qPr1/B1RPPn1n/r1P5/3P2R1/1K1B4 w - - 0 1 illegal: No possible last move, all moves rejected
1R1BN1Qb/2RP1bqN/3PpP2/4PPn1/3qNnP1/1pr4k/BK6/3r1b2 w - - 0 1 legal: proof: b4 b5 g4 f5 gxf5 g5 c4 a5 h3 d5 cxd5 g4 hxg4 axb4 a4 Bb7 axb5 Bc8 f4 Kf7 d4 Kf6 Kd2 c5 Kc2 h5 e4 c4 d6 b3+ Kc3 h4 d5 h3 d7 h2 b6 Rh3+ Bd3 Na6 b7 Nh6 Nf3 Nb4 Qd2 Bg7 Kb2 Bh8 Nc3 Nf7 Bb1 Ng5 Ba2 e6 Re1 h1B b8N Qf8 d6 Ba6 Qf2 Qg7 Qc5 Nd5 Qc8 Bg2 Qg8 Bf1 Bd2 Ra7 Rec1 Rh1 Be3 Rc7 Bb6 Bd3 Ba5 Rd1 Bb6 Bb5 Na6 Rc6 Nc7 Ba6 Na4 Bb5 Nc5 c3+ Ka3 c2 Kb2 Nh3 Ng5 Bf1 Nd3 Rc3 Nf2 Bbc4 Qb8 Bcd3 Nh7+ Kf7 e5 Ng5 f6 Kg6 Ba5 Kh6 Qd8 Bg6 f5 Nf4 Qg8 Bf7 Ne8 Ngh3 Nf8 Kg5 Ne4+ Kh4 Nh7 Ng5 Bd8 Kh3 Bb1 Rc4 Ra8 Rc3 Rb8 Nh5 Ba2 Nf4 Rb1 c1Q+ Ka1 Qe3 Kb2 Qb6 Rc1 Re3 Rc4 Rc3 Rc7 Qd4
brN3N1/qPP4n/n2B2R1/Kp1P1kqn/2R2p1P/1bP1Q2P/4B3/2q2B2 w - - 0 1 illegal: No proof kernel
1B1kq3/qPR1NRPq/2b4P/1BqrP3/1P2p3/6p1/q1P1Q1r1/bK1NR3 w - - 0 1 illegal: No proof kernel
5Q2/n2k1nPB/3P2Pb/r1nP1PN1/1b4rb/B2rP1rR/1KqN4/1R2Bb2 w - - 0 1 illegal: No proof kernel
q3q3/1P1rNNBr/r1RpN1b1/n2n4/2P2PK1/1P3B2/1rRPPb2/Qr2k3 w - - 0 1 illegal: No proof kernel
7n/PqPPbB2/K1R2r1R/2r2Qq1/b4bb1/P1P1pB2/2B1PNn1/1b1Nk3 w - - 0 1 illegal: Other
br1Bb1B1/2n5/3R2Pn/B2bKP2/1nP1qPkb/1RN5/p1Q2PPr/3qN3 w - - 0 1 illegal: Other
3B4/2R2pqn/n6P/2P2N1K/1P1PP1qB/bBkqNqQr/b1P4r/2R2r2 w - - 0 1 illegal: No possible last move, all moves rejected
R1r2N2/N1PP1PB1/3RnQ2/6r1/1kPprr2/4P1bK/b1nnqP2/q4B1R w - - 0 1 illegal: No proof kernel
1qB1N3/RPP2P2/P1nn1r2/b2bk1K1/6P1/1q2q1pr/2PqRb1Q/2BN3B w - - 0 1 illegal: No proof kernel
bK4rb/nbP1Br2/2bP4/3P2pR/5PP1/BN1qnBR1/2Qn2NP/2n3k1 w - - 0 1 illegal: No proof kernel
B2Q4/BR1P2r1/6n1/Pb3N1N/rq1p2KP/Pnn1b2r/1P3Pp1/RNkn4 w - - 0 1 illegal: No proof kernel
r1N5/4rN2/kq2P1PP/qp1pB1nb/3QR3/BR3P1P/3bK2P/b1bB2n1 w - - 0 1 illegal: Other
1rR2R2/B1qK3N/b2P1rp1/qpB1P1P1/4nb1P/rPN1Rb1P/1q2Q3/6k1 w - - 0 2 illegal: No proof kernel
3RNBq1/1b1q1N2/qRB1P2r/nNq1P2p/6Pp/2Q2PqP/1b3kPK/5r2 w - - 0 1 illegal: Other
3K2r1/3p2kn/1npP3r/NnPq1BP1/P2P2Bp/4P1rB/2r5/Q1Nb2RR w - - 1 2 illegal: No proof kernel
4B1B1/pP2NP2/P1P1B3/R1nnq1rr/P2NR1qk/Kp2b3/1P3pr1/3rQ3 w - - 1 2 illegal: Other
1n1q2R1/2p2PK1/1PpP2Pq/knBP4/2P1b1qq/1B1Br3/2Qp2N1/3Nr2R w - - 0 1 illegal: No proof kernel
2Rr2B1/K4rkp/QN1Ppbr1/1PNnPp1p/2b4R/6nP/PP6/1b2BB2 w - - 1 2 illegal: No proof kernel
B3r1R1/p2K3n/Bp1p2r1/P1b1nP1p/qNPk3P/Bp5P/1PR5/r1N4Q w - - 2 3 legal: proof: d4 f5 e4 e5 dxe5 b6 exf5 Bb7 Qd2 Bf3 Qb4 c5 h3 Bg4 h4 Bh3 gxh3 cxb4 Ke2 Kf7 Kf3 h5 Kf4 g6 a4 b3 f6 Ke6 f7 Kd5 e6 d6 e7 g5+ Kf5 g4 e8B g3 f4 g2 a5 Be7 f8Q Rh7 Nc3+ Kd4 Ke6 Qc7 f5 Bg5 Nge2+ Kc4 Na2 g1R Nb4 Na6 Bd2 Qg7 Bc6 Nb8 Nc1+ Kd4 Rh2 Nf6 Ba6 Rh6 c4 Rg6 Qe7 Qh7 Qb7 Be3 Be1 Qh8 Rc2 Nh7+ Ke7 Rf1 Bg2 Nc6+ Kd7 Re8 Bh1 Ne7 Qg2 Qg7 Qg1 Qe5 Ba8 Nc6 Qh1 Qb5 Rb1 Bg1 Ra1 Qa4 Bf2+ Ke5 Bc5 Bd4 Nba2 Bg1 Ba3 Bc5 Nb4 Kd4 Nca2 Rf2 Rg1 Rf1 Rg5 Ra1 Nc1 Rge6 Rg7 Rg6 Rg8 Ne5+
1r4KR/p2BQ3/3B3P/P1Np4/p3Ppbp/2P1qnp1/P1P2bR1/2N1Nk1r w - - 1 2 illegal: No proof kernel
2r4k/1q2pbrp/1b1PqNnB/1PnQPR1P/2RqB3/1P6/1b1P1q2/2K1N2B w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 f5 h4 Kf7 e4 Kg7 h5 c5 g5 a5 g6 f3 b3 f4 d6 f2+ Ke2 a4 e5 c4 Na3 c3 Kd3 c2 Nc4 a3 Kc3 f3 Nb2 a2 Ne2 Qd7 Nd3 Qe6 Kb2 Nd7 Bh3 f1Q Rh2 f2 Bg4 Nc5 Rh4 Qg2 Bf5 f1Q Rc4 Nf6 Be4 Nfd7 Ne1 Qff2 Ng3 Rg8 Qf3 Kh8 Qd3 Bb7 Qd5 Bh6 Rb1 Be3 Ra1 Rgc8 g7+ Kg8 Rb1 Nf8 Ra1 Ng6 Rb1 Kf7 g8B+ Kg7 Bf7 Kh8 Be8 Qgf3 Bc6 Rg8 Ra1 Rg7 Rb1 Qff5 Bh1 Re8 Ne4 Rc8 Nf6 Q5f4 Qd3 Q4g3 Bce4 Qgf3 Qd5 a1B+ Ka3 Bed4 Bb2 c1Q Ka2 Be3 Bd4 Bb2 Ra1 Qc3 Kb1 Bc6 Ra8 Be8 Raa4 Bf4 Be3 Qd4 Kc2 Bh2 Bh6 Bf7 Ra1 Q3g2 Rc1 Bg1 Kd1 Nb7 R1c3 Nc5 Rf3 Qd7 Rf5 Qb7 Rg5 Qg4+ Kc2 Qgd7 Rf5 Qe6 Bg5 Qf4 Ng8 Na4 Bf6 Qde3 Bg5 Qc3+ Kb1 Bb6 Bh6 Qf2 Nf6 Qcd4 Kc2 Nc5 Kb1 Bc3 Kc1 Bb2+
qN4n1/1Q2q1rb/qq2R1pK/4rP1b/PB1Pp3/b2NPN1P/1n4P1/4RB1k w - - 0 1 illegal: No proof kernel
RB1bqr2/1pPp1n1n/4P2p/1P1r3R/2RPr1QN/1PbB1N1P/bk6/3K1n2 w - - 2 3 illegal: No proof kernel forced: wxLB
4r1B1/1r1pRP1R/KPn4p/4qpBP/Pr1Pb1QP/Nk3b2/1N6/q1b3nR w - - 0 1 illegal: No proof kernel
Rrk3B1/bp4n1/Qp5K/nrPq2p1/1N2b1PP/1Pb3B1/1NRPP2q/q5R1 w - - 0 1 illegal: No proof kernel
3Bb3/Rnp3P1/1PK5/3p4/R1P3Rp/2Pr2bP/Q2PkBqN/1qbqNnr1 w - - 2 3 illegal: No proof kernel
r3NK2/2Pn1pr1/p1NPb1Pb/6B1/kP5q/1bpR2qR/2P2PB1/1N2Qnr1 w - - 0 1 illegal: No proof kernel
nB2Kn2/4nr2/R1RNRp2/Pp1B3P/1P1pn3/1b1P1NPk/r4P1r/1Q2bq2 w - - 1 3 illegal: No proof kernel
N1n2B1B/1rb5/nQr2nk1/8/ppRqq1PP/PP4P1/p1BP2b1/3nKRN1 w - - 0 1 illegal: Other
3KN1r1/3R2nB/2PbPp2/1Qp2NB1/p2r1PP1/1nP1qqqB/Pk4nR/4n3 w - - 0 1 legal: proof: d4 c5 h4 g5 b4 gxh4 b5 e5 dxe5 b6 Bg5 Bb7 Bc1 Bc6 bxc6 Qg5 Qd3 Qe7 Qd1 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 h5 e4 a5 g4 d5 f3 b5 Be2 a4 Na3 h3 Rb1 b4 Rh2 h4 Bb5 b3 Rg2 f6 Qd2 d4 Rb2 h2 Qd3 h1Q Qf1 d3 Bd2 h3 Bb4 h2 Qa1 d2 Nc4 d1N Nd6 Nd7 Ne2 Qe1 Ng3 h1Q Ne8 Bd6 Bf1 Ne7 Rh2 Nf5 Bh3 Qb8 Qb1 Nde3 Bd2 Ng7 Nf5 Rg8 Bc1 Qc7 c3 Rd8 Rbg2 b2 Rd2 Qf2 Qd3 b1N Qb5 Qhe1 Rd5 Nd2 Rd3 Nb3 Rd1 Nb6 Rd3 Nc2 Rd2 Be7 Rd7 Nc4 Bd2 N4e3 Bc1 Qd6 Bd2 Qd5 Bc1 Kf7 e6+ Kg6 e5 Bd6 e7 Qee2 Bg2 Ne1 Bh3 Qe6 Ke4 N3g2+ Be3 Qd1 Bg5 Qg3 f4 Kf7 Nd4 Qf5+ Kd5 Qfd3 Nc7 Qde3 e8B+ Kf8 Bg6 Qde2 Be4 Q2f3 Re7 Rd7 Ne8 Rd8 Ra7 Rd7 Nf5 Kf7 Kc4 Ke6 Bc2 Rd8 Rd7 Rb8 Ne7 Rc8 Bh7 Rd8 Nf5 Rf8 Qb8 Rg8 Kb5 Kd5 Kb6 Kc4 e6 Kd3 Qb7 Kc2 Qb8 Be7 Kc7 Kb2 Qb5 Bf8 Re7 Rd2 Rd7 Rd4 Kd8 Bd6
kB1B1q2/NR1p3p/bq3P2/N1r2p2/P1PP1b2/1n1K1bRP/2q2P2/Q1qB2r1 w - - 0 1 illegal: No proof kernel
1b3q2/r1r3pk/2N1B3/RP1PQ2p/2KRrp2/1n2pBnP/3P1PPB/1rn2N2 w - - 0 1 legal: proof: c4 b5 e4 d5 exd5 a5 Qe2 b4 Qd1 Ba6 b3 Bb5 cxb5 a4 Qe2 axb3 Qf3 Ra7 Qd1 Ra8 Ke2 c5 Kd3 h5 a4 f5 h3 Kf7 a5 Kg6 a6 e5 a7 b2 Qf3 c4+ Kc2 e4 Qe3 c3 Kb3 c2 Na3 b1R+ Bb2 c1N+ Kc4 b3 Nc2 Nh6 Nb4 Na6 Ra4 Nc5 Ne2 Kh7 Nc6 Bd6 Ng3 Re8 Be5 b2 Be2 N5b3 Bf3 Bb8 Nf1 Ra1 Bh2 b1R Qg5 f4 Qe5 e3 Rb4 Nf5 Ra4 Bd6 Rb4 Rb8 a8B Ng3 Bb7 Ra7 Bc8 Rbb7 Be6 Bb8 Qa1 Qg5 Beg4 Nd4 Rb3 Rb2 Rd3 Re4 Be6 Qf6 Rg1 Na2 Rh1 Ngf5 Ng3 Qf8 Rb1 Nc1 Nf1 Rb3 Qb2 Rf7 Ra1 Ng3 Ra5 Rfc7 Qa1 Rb1 Qc3 Ndb3+ Qd4 Re5 Qe4+ Kh8 Qf5 Re4+ Rd4 Rab7 Qf6 Kh7 Qe5 Ra7
B3K1Qq/2r1np1P/5p2/b2Pp2R/1p2rq1B/R1PrP1r1/1Pn2P1N/1kB1N3 w - - 0 1 illegal: No proof kernel
4r1Rr/1p2BNPP/p5Kp/qP2b3/1QB2R2/1P1n3P/nrp1Pp2/N3Nb1k w - - 0 1 illegal: Other
4qn2/1pr2R2/2Prp1nB/1k2Pq1P/5R2/pP1Rr1pB/1pQN1PP1/2b3KN w - - 0 1 illegal: No proof kernel
qbnNbk2/1R1B3P/Qp4Rq/r2P4/r1P2PP1/7Q/b1rP4/2NK1B2 w - - 0 1 legal: proof: e4 c5 b4 a5 bxa5 f5 g3 d5 exd5 f4 gxf4 Kf7 Ba3 Ke8 f3 h5 Bc4 g5 Bb4 g4 Bd3 g3 Bf5 Nc6 Bh7 Ne5 Na3 Ng4 fxg4 h4 Nb1 h3 Nxh3 cxb4 Ng1 Bh6 Ne2 Bg7 Ng1 Bf8 a4 e5 c4 b3 h4 g2 h5 e4 a6 b6 h6 b2 a5 e3 a7 e2 a6 Bc5 Qb3 Bd4 Nh3 Kf8 Bd3 Ne7 h7 Bf6 Nc3 b1B Na2 Bf5 Nc1 Qe8 Ng5 Ba2 Nf7 Bd7 Nd8 Nc8 Rh6 Be5 Rg6 Bb8 Qc3 Bb1 Ra5 Ba2 Rc5 Qe6 Rc7 Be8 Rb7 Rg8 Bc2 Qd6 Qh3 Qa3 Bd3 g1R+ Kf2 e1Q+ Kf3 Qc5 Bf1 Qh4 Ke2 Qh6 Kd1 Qa5 Ke1 Bf7 Nd3 Ke8 Nc6 Bc7 Ke2 Rg3 Rb8 Rg7 Nc1 Rd3 Kd1 Kf8 Nd8 Be8 Qh4 Re7 Qh3 Ree3 Rb7 Qa3 Bg2 Rc3 Bf1 Rb8 a8Q Rc2 a7 Rb3 Rc6 Rb4 Rg6 Bd6 Rd7 Qa6 Qb7 Bc7 a8B Ra4 Qa7 Bd6 Bc6 Ra8 Rb7 Bc7 Bd7 Bb8 Rc7 Qb7 Qa5 Ra6 Qb5 R6a5 Qa6 Qa7 Rb7 Qa8
QNn5/n1PqBP2/b2n2R1/K1bB3b/1NQbRbP1/2P2bk1/P1P5/1r4r1 w - - 0 1 illegal: No proof kernel
3b1r1r/3P2kN/1PR1R3/1B2Pbb1/1K2P3/2N1Pq1n/Q1P1nq2/Bbr1rQ2 w - - 0 1 illegal: No proof kernel
2B2qB1/1qr2N2/PRPr1p1Q/bP2q1P1/2nk1N1Q/1n1P1P1R/5b2/1K2bb2 w - - 0 1 illegal: No proof kernel
1N6/Pr1RR1p1/1n1n3n/1K3Pb1/1PQN1nBP/k3P2b/2n3PB/2nq1Qr1 w - - 0 1 illegal: No proof kernel
kq2r3/1N2nR1p/2N1B3/2B2bpQ/PPqPPR1P/2b2P1n/8/r1Q1b1qK w - - 0 1 illegal: No proof kernel
1R6/BPk1P3/K4P2/P1PpR3/QnQr3r/q7/BNbp1Pnr/1Nn1bq2 w - - 0 1 illegal: No proof kernel
KB6/r1rQ1PR1/4P1Pb/nN1Pn1p1/1pR2P2/1B2b1r1/QP3r1k/2rN1b2 w - - 0 1 illegal: No proof kernel
B4RqQ/4P3/pRKpPb2/2nP2Pr/1n5Q/rP2BkNP/p4N1q/5rn1 w - - 0 1 illegal: No proof kernel
B2N2qr/2BRP2p/2n4P/Qq2KpP1/bn4b1/b4PP1/QP1Rp2n/1N2k3 w - - 1 2 illegal: No possible last move
1r1k4/1b1p2PR/1rQKB3/P1Q1b3/1p2P2R/3p1rbp/1PnP3P/q1B1N2N w - - 0 3 illegal: No possible last move, all moves rejected
nB5Q/1q4n1/R1p2PpP/3prRbn/p1P4P/2n1bB2/PP1QN2K/k6N w - - 0 2 illegal: No proof kernel
Brq1RRbK/6NP/Pb3BQ1/2Q2n1N/ppnP4/PP6/q2qP1q1/1b2r2k w - - 0 1 illegal: No proof kernel
NB4r1/qp1Bpr2/r1QP1P1R/b1Qb2pn/1P2Pq2/3R4/PkP4K/N2n1q2 w - - 0 1 illegal: No proof kernel
k2nn3/6P1/q1p2bpB/Rpqr3b/PR2NQBP/QrP2P2/2N3P1/3nq2K w - - 0 1 illegal: No proof kernel
2Q1nBK1/n2Pq1pN/1n5b/1prpR2P/2P4r/nP1NB2R/1rbPk1P1/Q7 w - - 2 3 illegal: No proof kernel
8/b1p2K1p/Pn2N3/PpPqkP2/RPqb1q2/rNRnq2P/B7/Bb2Q2Q w - - 0 1 illegal: Other
kNR3qK/4Bqp1/Pp1r4/1R2pBP1/1n2P1b1/QPpQ1N1P/2P1n3/nq3b2 w - - 0 4 illegal: No possible last move, all moves rejected
1BrR2b1/p3Kp1r/k1q2NP1/P6n/1pp1p1B1/pP6/2PQPPbr/2NR1Q2 w - - 1 10 illegal: Other
3b3b/1PNBP1r1/P1bn1Pp1/2PQN2N/p1n1RRK1/1k4P1/b3R2r/q5b1 w - - 0 1 illegal: No proof kernel
N3K2n/5NP1/2P2p1P/2B2R1r/1P1N1RrQ/R1P3p1/1bn1bP2/1nr2kqn w - - 0 1 illegal: No proof kernel
kBqb3Q/p5Rr/2R1nN1q/qP1b4/1P1Br1Rp/KP5P/P1PnB3/q7 w - - 0 2 illegal: Other
2nnqk1r/pP5R/5PP1/PnrQ3K/1N1RN1P1/3Q2P1/1QpB4/5r1r w - - 0 1 legal: proof: e4 e5 g4 b5 d4 f5 exf5 b4 dxe5 b3 cxb3 Bd6 b4 Be7 b5 Bh4 f6 g6 Bd3 Ne7 Bf5 Bg3 fxg3 Bb7 h3 Bf3 g5 Bg4 hxg4 gxf5 Ke2 Ng8 Kd2 Qc8 Ke1 Qd8 Ke2 h5 Kf3 d5 b4 c5 a4 c4 e6 h4 g6 d4 a5 h3 e7 h2 b6 c3 b7 d3 b5 c2 b6 f4 Nc3 d2 Nh3 Qc8 Ne4 Na6 b8Q Nc5 Ra4 Ne6 Rd4 Nd8 Nhf2 Rh5 Nd3 Rc5 Nb4 Qd7 Qe2 d1N Qd3 Nc3 Bd2 Nb5 b7 Qe6 Qd6 Rb8 Kg2 f3+ Kh3 f2 Kh4 f1R Qd5 Rbc8 Kh5 Ra8 Rg1 Qd7 Rg2 h1R+ Rh2 Nh6 Kg5 Nf5 Rh4 Nfd6 Rh7 Rhg1 Kh6 Nc8 Kh5 Rh1+ Kg5 Rc3 Nc5 Rhg1 Q3c4 Nf7+ Kh5 Ncd6 Ne4 Qc6 Qa2 Rc5 Qa1 Rd8 Qb2 Nc8 Nd6+ Kd7 Rf4 Rh8 Re4 Nd8 Rd4 Kc7 e8Q+ Qd7 Bh6 Qf7 Qe4 Kd7 Qd3 Qe7 Nf7+ Ke8 Bd2 Kf8 Ng5 Qe8 Ne4 Rh1+
n5n1/4QPPR/N5P1/P1rR2Pn/B6P/kb1BB2r/4r1KQ/1rn2nb1 w - - 0 1 illegal: Other
R2NR1K1/p2k4/1r1Nnq1P/P4Bq1/4PPQ1/1bP3Qn/nP3b2/2Rr3q w - - 0 1 legal: proof: g4 b5 c4 e5 cxb5 Ke7 Qb3 h5 Qxf7+ Kd6 gxh5 c5 Bh3 c4 Bf1 c3 dxc3 Kc7 Be3 Kd6 Bd4 exd4 Kd2 g5 Kd3 g4 Kc4 g3 e4 g2 a4 d3 h4 d2 a5 d1N b6 Bg7 b7 Bh6 Nd2 Nf6 Qg8 Ne8 Nh3 g1Q Ng5 Nc7 Rc1 Nc6 b8Q Nb4 Bh3 Qf6 Ne6 Na2 Nd8 Be3 h6 Qgg5 h7 Bb7 f4 Bf2 Qc8 Rb8 h5 Ne6 Bf5 Bc6 h6 Ba4 Rh5 Rb6 Qg7 Rf8 h8R Rf7 Qg8 Ke7 Kd5 Bb3+ Nc4 d6 Qc5 Kd7 Qe3 Rf8 Qg3 Re8 Nb7 Rd8 Qg6 Bd4 Re8 Nf2 Rh4 Nh3 Rg4 Bf2 Qh5 Qh4 Rgg8 Qhg5 Qhg4 Kc7 Qe3 Ng7 Re5 Rd7 Ra8 Rd8 Kd4 d5 Kc5 d4 Qeg3 Rd7 Nd8 Rdd6 Re6 Kd7 Re8+ Re6 Kd5 d3 Re1 d2 Rc1 d1Q+ Qd3 Qh1 Qdg3 Qf8 Rb8 Kc7 Ra8 Red6+ Ke5 Rd1 Nd6 Qh8 Rb1 Qh5 Kf6 Ne6+ Ke7 Qd4 Rc1 Qg5+ Kf7 Kd7 Nc6 Qh5+ Kg8 Qf6 Nd8 Qhg5+
Rr1r2QN/b1B1PP1P/1rN2pq1/b2n1P2/2n5/p1QP4/1P3KN1/Rq1k4 w - - 0 1 legal: proof: a4 d5 Na3 e5 Nb1 b5 axb5 d4 Ra5 e4 Ra1 e3 dxe3 d3 cxd3 Qf6 Nd2 Qg5 Nb1 Qd8 g4 h5 g5 f6 g6 Be6 Bh3 Bf7 Bg4 hxg4 gxf7+ Kd7 f4 Kd6 h4 Kc5 b6 Kb4 e4 g5 e3 a5 b7 c5 e5 g3 f5 g2 e4 c4 e6 c3 h5 c2 h6 Kb3 e5 a4 e7 g4 e8Q g3 h7 a3 e6 Nd7 b8N Ne5 Qd2 Ne7 Nc6 Nc4 Nc3 Nd5 Nge2 g1B Rh4 g2 Nf4 Bb4 e7 Ba7 Nd1 Rb8 Ne3 Ba5 Qg8 g1Q+ Ke2 Qc7 Ng6 Qcg3 Ng2 Rd8 Qe1 Rb8 Be3 c1R Bf4 Kc2 Bc7 Qg5 Kf3 Rd8 Qc3+ Kd1 Rd4 Qh1 Kf2 Rb8 Qg7 Rhd8 Nh8 Qg6 Qg8 Nce3 Ra4 Nc4+ Qd4 Rb6 Ra2 Rc3 Qe5 Rcb3 Ra1+ Kc2 Qd4 Qb1 Qc3+ Kd1 Ne5 Bb4 Ra6 Ba5 Nc6 Bb8 Ra8 Ba7 Qe5 Rbb8+ Qd4 R3b6 Qe5 Re8 Qc3 Red8
r3R3/3rP2b/3NP1nR/3b3P/1KQ1npNP/Pp1B2Qn/3P1q2/1N2k1n1 w - - 0 1 legal: proof: g4 a5 b4 h5 gxh5 d5 bxa5 d4 f4 d3 e4 Nf6 Bb2 Nd5 Bf6 exf6 cxd3 f5 e5 Bc5 d4 Ne7 Kf2 Bd6 Ke2 Ng8 e6 Be5 fxe5 f4 d5 f3+ Ke3 f2 Kf3 Kf8 Ke2 Ke8 Kd3 Ke7 Kc4 b5+ Kc5 f5 h4 g5 a3 g4 a6 f4 a7 g3 Ra2 b4 Bc4 f1B Nh3 b3 Qf3 g2 Qd1 g1N Qc2 Rh7 Qd3 Bb7 Ba6 Nf6 Kb5 c5 Rh2 c4 Rf2 c3 Kc5 c2 Re2 c1N Kb4 Nbd7 Qg3 Nf8 Nf2 Ne4 Ng4 Nh3 Rc2 Ng6 Rc6 Qb6+ Bb5 Qe3 Bd3 Qf2 Re1 Ne2 d6+ Ke8 d7+ Ke7 d8N Neg1 Rb6 Bd5 Nf7 Be2 Nd6 Bd1 Re3 Bc2 Ne8 Rh8 Nd6 Rhd8 Rc6 Rd7 Rb6 Rf8 a8Q Rfd8 Qa4 Ra8 Re1 Qd4+ Bc4 Bd3 Qb5 Nef2 Ne4 Nf8 Qc6 Kd8 e7+ Ke8 Qb5 Kf7 Nc5 Bh7 Rc1 Ne4 Rh6 Ng6 Nb7 Ke6 Nd6 Qf2 Bf1 Bc6 Qe2 Kd5 e6 Kd4 Qa6 Bd5 Rc8 Nhg5 Re8 N5h3 Bg2 Nf8 Qc6 Ng6 Bf3 Kd3 Bd1+ Nf3 Bc2+ Ke2 Qc4+ Ke1 Bd3 Nfg1
1B5q/3n2Pp/p4PrP/NnPBn2P/2RP1qNQ/1KQr2N1/2r1b3/2k5 w - - 0 1 illegal: No proof kernel
BQN5/bpPbNP1K/rb6/1PpP4/1rn1kbB1/4Pq2/1Qr2P1R/2B5 w - - 0 1 illegal: No proof kernel
2K5/1r1rB2p/3NP3/pBn2b2/PbNb1P2/3Pb1n1/PQ1PR2B/3kn2Q w - - 0 1 legal: proof: f4 e5 g3 d5 b3 e4 g4 f5 gxf5 d4 Nf3 d3 cxd3 Qd7 Ng1 Qa4 bxa4 Bd7 Ba3 Be6 Bc1 Bc8 h4 g5 Bg2 b5 Bf1 a5 Na3 g4 Rh3 Ra6 Rf3 Rg6 Rb1 Rg5 hxg5 exf3 Bg2 Ba6 Nh3 Nc6 Bb2 Nf6 Kf2 Nd5 Qc2 Kf7 Rh1 Nde7 Qd1 Bc8 Bc1 Ng8 Bf1 Ke8 Ng1 Nb8 Ke1 Kd8 Nc4 Kd7 Na3 Ke8 Kf2 Kd7 Ke3 c5 Ke4 f2 Kd5 g3 e4 g2 e5 b4 f6 c4 f7 c3 g6 b3 g7 c2 Bb2 c1B Qh5 Bb4 f8B Nf6+ Kc4 Ke6 Kb5 Nc6 Kb6 Ne4 Kc7 Nd4 Nb5 Nf3 Rh2 Ne1 Be7 Nc5 Nf3 g1B Nd6 Rd8 Bd4 b2 Bg2 b1R Kb8 f1N g8Q+ Kd7 Qge8+ Ke6 Qh8 Be3 Bh1 Bca3 Re2 Bb2 Bg2 Ng3 Qh1 Rd7 Bh3+ Kd5 Be6+ Kc6 Bc4 B2c3 Bb5+ Kd5 Nc4 Ke6 Ng5+ Kf5 Nf7 Kg4 Nfd6 Rb3 Qh2 Kf3 e6 Bb7 Qh6 Be4 Kc8 Bf5 Qh1+ Ng2 Bdf6 Bcd4 Bh4 Rb2 Qg1 Ne1 Qg7 Nh1 Bg3 Rb3 Bh2 Ng3 Rg2 Rb2 Qh1 Rb1 Rg1+ Ke2 Rg2+ Kd1 Re2 Bbc3 Bc6 Rbb7 Bb5 Bb4 Qf6 Bg1 Qg7 Bde3 Qc3 Bd4 Qb2 Bge3
2n1n2N/P2QP2K/1R2p1pB/1rQP2Pk/B1P5/P3r3/2b1N1Br/nn5n w - - 0 1 legal: proof: b4 a5 bxa5 d5 e4 c5 exd5 e6 f4 g6 h4 Ra7 a3 Ke7 f5 Kd7 h5 Ra6 h6 Qb6 f6 Be7 fxe7 Qb2 Rh4 Qg7 hxg7 Ra7 Rh1 Ra6 Ra2 Ra7 Rb2 Ra8 Rb4 cxb4 Kf2 Ke8 Kg3 h5 Kf4 f5 Kg5 Kf7 g4 b5 d4 f4 c4 b3 a6 h4 d6 h3 d7 h2 d8Q b2 d5 b4 a7 f3 Qb6 b3 Qa6 f2 Qb6 Rh3 Qd6 Re3 Qd4 Nd7 Qc7 Nb6 Bh3 f1N Ne2 Nd2 Qdc5 Bd7 Nbc3 b1N Bg2 b2 Nb5 Nf6 Kh6 Ne8 g8B+ Kf6 Kh7 Kg5 Bf7 Nc8 Nd6 Ba4 Qd7 Nb3 Rg1 h1N Bd2 Nc7 Be8 Na1 Nf7+ Kh4 Rd1 Bc2 Nh8 Rb8 Bc1 Rb5 Rd3 Kg5 Rb3 Kh4 g5 Kh5 Bd2 Rf3 Bc3 Rg3 Bg7 Re3 Bf7 Ne8 Bh6 Nc3 Rb4 b1R Rb3 Rb2 Rb4 Nc7 Be8 Nb1 Rb3 Ra5 Rb6 Rab5 Qdd6 Ra2 Bd7 Ne8 Bc6 Rb4 Ba4 Rb5 Qd7 Bb3 Ng1 Rf2 Ne2 Bc2 Bf1 Rh2 Bh3 Re4 Bg2 Re3
2r1Q3/2K2Pp1/1B3P1q/p2P4/q2q2Bp/1PP1B2R/P1kN1n2/2nb1bRQ w - - 0 1 illegal: No proof kernel
1KbB2b1/p3p2B/R1Q2P2/r3Pn2/1kP1P1B1/pn2p2Q/3P3P/N3q1qN w - - 0 1 illegal: Other
2r2n2/1R1Q1PPp/n2pPPn1/5k2/BpKP1N2/1RP4q/1b2pq2/1R4NQ w - - 0 1 illegal: No proof kernel
K1R1Q1N1/Q1B1Br2/2P3bn/Pr2P2p/k7/P2n3P/n1nnP3/r2qb1RB w - - 0 1 legal: proof: d4 a5 b4 f5 bxa5 e5 dxe5 c6 g4 Na6 gxf5 Nb8 Nc3 c5 Nd5 Ra6 Nb4 cxb4 Bh3 Ra7 Bf1 Ra8 f4 Na6 c4 h5 Kd2 d5 Kd3 Kd7 Kd4 Kc6 c5 Kb5 f6 g5 f7 b3 c6 b2 f5 b1N h3 g4 a3 g3 f6 g2 Bg5 Rb8 Bh4 Nc3 Qe1 Na2 Qb1+ N6b4 Qe1 Bf5 Nf3 g1R Rb1 Ka4 Nh2 b5 Bg2 Nh6 Qf2 Bg6 Ng4 Rh7 Rd1 Be7 f8B Rf1 Rd3 Ra1 f7 Bf6 Kc5 d4 Qg1 Nc2 Bd6 b4 f8Q b3 Qe8 b2 Bc7 b1N Rb3 Bg5 Nf6 d3 Ng8 Bd2 Be7 Be1 Qf2 d2 Rg1 d1N Bh1 Nb2 Rb6 Rc8 Rb8 Qd1 Kb6 Nd3 Kb7 Rf7 Qa7 Nd2 Ka8 Rd8 Rc8 Rd5 Qd7 Rc5 Qe8 Rb5
1r6/1k2BB2/N5p1/2QKPb2/1q1bP3/1p2rQPP/P1P1nQq1/qr2NRn1 w - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 h5 f4 c5 fxe5 Ke7 dxc5 Ke8 Nd2 h4 Rb1 Bd6 Rb3 Be7 Rf3 Bf8 g3 h3 Rf2 Qf6 Rg2 hxg2 Ba3 Qg5 Bc1 Qd8 Kf2 b5 Ke3 d5 Kd4 Kd7 e4 Kc6 a6 f5 h3 f4 a7 f3 Bd3 b4 Be2 f2 Bf3 f1Q Bb2 g6 Qb1 Kb7 Qa1 Bf5 Ba3 Qb6 Qc1 Nf6 Qa1 Nh7 Qc1 Ng5 Be2 Qe1 Qb2 Qa1 Ngf3 g1R Bc4 Rb1 Qc3 Nc6+ Kd3 d4 Ne1 Bh6 Rf1 Rhb8 Bf7 Nf3 Kc4 d3 Kd5 Ng1 Nb3 d2 Qf3 Be3 Qf2 Nd4 c6+ Kc7 Nc5 d1Q Qf3 Qe2 Na6+ Kc8 c7 Qg2 Qf2 Kb7 Qf3 b3 Be7 Qb4 Qf2 Nde2 c8Q+ Kb6 Qc3 Kb7 Qc5 Bd4 Qf3 Rc8 Qf2 Rc6 Qf3 Rb8 a8Q+ Kc8 Qaa7 Rc7 Qd6 Rc3 Qac5+ Kb7 Qf6 Re3 Qf2 Bg4 Q6f3 Bf5
n2b3k/1bqN3P/1rr1n1P1/2qp2K1/Q4P2/QR1PBP2/2PpRqQq/5B2 w - - 0 1 illegal: No possible last move
k2r3Q/P3KbP1/1B4Qn/3p1p2/1b3PbP/P2PRb1R/2B3B1/n1rNb1r1 w - - 0 1 illegal: No proof kernel
n2Qb1n1/p1p2rP1/PrP3N1/4P1bQ/BKPpbq2/R1P1n2R/2R4N/7k w - - 0 2 illegal: No possible last move, all moves rejected
6rq/2k1Pb1p/bpr1RbN1/1Q4Kn/4RPP1/pPB2N2/PN4Pn/q5Q1 w - - 1 2 legal: proof: c4 d5 cxd5 g5 d6 e6 h3 g4 hxg4 Bh6 Nc3 Bg7 Nb1 Bf8 d4 Kd7 e3 Kc6 d5+ Kb6 d7 Kc5 d6 Kc6 Bc4 f5 Qf3+ Kc5 Bd5 exd5 Qxf5 Kb6 Qf7 Kc6 Kd2 a5 e4 d4 e5 d3 Ke3 d2 Kf4 d1B e6 a4 e7 b6 Bd2 a3 Qf5 Ba6 Nc3 Nf6 Rh6 Rg8 Nf3 Bg7 Na4 Bb3 Re1 Nh5+ Kg5 Bf7 b3 Qc8 d8Q Nd7 Qb1 Ne5 d7+ Kb7 Re6 c5 Re3 c4 Nb2 c3 Qe8 c2 d8N+ Kc7 Qg1 c1Q Nc6 Qa1 Re4 Qd8 Bc3 Rc8 Nb4 Qd4 Qb5 Qd8 N4d3 Bf6+ Kf5 Qe8 Nf4 Qf8 Ng6 Qg7 Nd2 Qh8 f4 Nf3 Ndc4 Rb8 Nce5 Nh2 Nf3 Rbd8 Qb4 Rd6 Qb5 Bd4 Kg5 Rc6 Nd2 Be5 Nf3 Bf6+
2k2BN1/7P/PP3q2/R4p1Q/KnB2bqq/1pN1pP2/1P1Pr1qQ/1b1nB3 w - - 0 1 illegal: Other
n3b3/2bRp1k1/Pp3qrN/1PpP4/4KBPR/1Pb1B2Q/2P2nB1/qbQ5 w - - 0 1 illegal: No proof kernel
bN4k1/K1Pr1pn1/2RqbPpB/1P6/2rQn1Np/1Q1P4/3BpPP1/2n2B2 w - - 1 2 illegal: No proof kernel
1rk2N2/2n2Q1P/5p1P/PR2prb1/3PP1pQ/rp1RnPN1/5R1n/2q1K1B1 w - - 0 1 legal: proof: g4 a5 h4 d5 b4 d4 bxa5 d3 h5 Ra7 cxd3 Qd6 d4 Ra8 d5 Qd8 h6 Ra7 Bg2 Ra8 Be4 Bf5 Bd3 Bg6 Be4 Bh5 Bg6 hxg6 gxh5 Qd7 Na3 Qc8 Nb1 Qd8 d4 Kd7 e4 c5 a4 e5 d6 b5 h7 c4 h6 c3 a6 g5 a7 g4 Nf3 g5 Bd2 g3 Qe2 g4 Qd1 b4 Rh3 c2 Nh4 c1R Ng6 b3 Ra2 g2 Be3 g1N Nc3 Kc8 Ne2 Nf6 Ng3 Be7 Nf8 Na6 a5 Nd5 Re2 Rb8 a8R Nac7 Rc2 Bg5 d7+ Kb7 Rd2 Qc8 d8Q Ra1 Rb2 Ra4 Qf3 Ra3 Ra6 Rg8 Rc6 Rg6 Rc5 Rf6 Qe7 Rf5 Rb5+ Nb6 Qh1 f6 Qf7 Nf3+ Kd1 Nh2 Ke1 Qd7 Rd2 Kc8 f3 Ra4 Bg1 Qc6 Rd3 Nbd5 Rh5 Ra3 Rh3 Nf1 Rh2 Nde3 Rf2 Qc4 Qh3 Nh2 Qh4 Qc1+
3k2N1/bpp3N1/BQ2Kp1p/4rPp1/r1PrRR2/1P2b1nQ/1P2n1PP/R5b1 w - - 2 5 legal: proof: c3 d5 d3 d4 c4 Qd6 Bf4 Qb6 Bc1 Qb3 axb3 Kd8 Na3 Kd7 Nb1 Ke8 e4 Nh6 Bd2 Bh3 Bc3 dxc3 d4 Kd7 d5 Be6 d6 Bd5 exd5 Ng8 Be2 Kd8 Bf1 Ke8 Ke2 g5 Kd3 a5 Kd4 e6 Ke5 h6 f4 c2 d7+ Ke7 d8R c1B f5 a4 Be2 a3 Nd2 a2 Bf3 Rh7 Nh3 Ra5 Re1 Nf6 Nf4 Nh5 Rb1 a1R Ne4 R1a4 Ra1 Rc5 Nf6 Nc6+ Ke4 e5 Qd3 Nd4 Ne6 Rb5 Rd6 Rc5 Ng8+ Ke8 Rd7 f6 d6 Re7 Rf1 Rc6 Kd5 e4 Qc3 e3 Rf2 e2 Ng7+ Kf7 Be4 e1B Rf4 Bf2 Qh3 Bg1 Rd8 Rb6 d7 Bce3 Re8 Ng3 d8Q Nde2 Qd6 Re6 Qb4 Bfc5 Bf3 Rbc6 Qa5 Ba7 Qb6 Re4 Re7+ Kf8 Re5 Rc5+ Ke6 Rd4 Bc6 Rcd5 Bb5 Rc5 Ba6 Rcd5 Nh5 Ke8 Ree4 Kd8 Ng7 Re5+
1b2N2R/nqp2n2/4BNBb/PbPPP3/R6P/1Pp2N2/2K1k3/r1B1n3 w - - 0 1 legal: proof: f4 d5 c4 h5 c5 b5 g3 e5 fxe5 h4 gxh4 Qd6 Qb3 Qd8 Qc4 dxc4 Kd1 b4 Ke1 b3 axb3 Bd6 Na3 Be7 Nb1 Bf8 Bh3 a5 Bg2 a4 Bf1 a3 bxa3 Ba6 Nc3 Bb7 Nb1 Bc8 h3 g5 Rh2 g4 Rh1 g3 Nc3 Ra6 Nb1 Re6 Rh2 Rg6 Rh1 Rg4 hxg4 Kd7 Rh3 Ke7 Rh1 Ke8 Kd1 Ke7 d4 Ke6 e4 f5 a4 f4 g5 g2 g6 f3 g7 f2 Ra3 Ba6 Be3 Qc8 Kd2 Bb5 Nf3 g1B Bg5 Qb7 Bg2 f1N+ Kc2 Bf2 Nh2 Nd2 Rf1 Nf3 Bc1 Nc6 Ng4 Nh6 g8B+ Nf7 Nf6 Na7 Nd2 Be1 Rg1 Bh6 d5+ Ke7 Bh7 Rg8 e6 Ra8 Nf1 Bb4 Nd2 c3 Bg6 Ba5 Bh3 Bb6 e5 Ne1+ Kb1 Kf8 e7+ Kg7 Rg2 Bg5 e8N+ Kh6 Nf3 Bd2 Be4 Bf4 Rg8 Be3 Nh7 Kh5 Rh8 Bf4 Bhf5 Bh6 Bg6+ Kg4 Bef5+ Kg3 Nhf6 Kf2 Be6 Ke2 Ra1 Nc8 Ra3 Ba7 Ra1 Bb8 Ra3 Ra6 a5 Na7 Ra1 Rd6 Ra4 Rd8 Nd6 Rg8 Nde8 Rg7 Bc2 Rg1 Bg6 Nd3 Kc2 Rh1 Bg5 Ra1 Bc1 Ne1+
1q1B4/R1n5/B1k1Pn2/1p2P1Rb/Pnr1Rbp1/KP1b1PN1/1P6/3rNB2 w - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 f5 h3 g5 gxf5 a5 h4 a4 Qd2 g4 Qa5 Qg5 hxg5 Ra6 Qb4 Ra8 Qb3 axb3 cxb3 Ra7 Nd2 Ra3 Nb1 Ra8 Kd2 h5 Kc2 c5 e4 d5 a4 Kd7 g6 c4 g7 c3 f6 d4 f3 d3+ Kd1 c2+ Kd2 h4 Kc3 h3 e6+ Kc6 e5 d2 f7 d1B Na3 h2 Bg5 c1N Ne2 Na6 Bd8 Nd3 Ng3 Nf6 g8B Ndb4 Bh7 Bh6 f8R Bd7 Rg8 Rc8 Rg5 Be2 Nc2 Be8 Re1 Bd3 Re4 Nc7 Ne1 Bh5 Bg6 Rh7 Be8+ Rd7 Bg6 Kb7 Be8 Rd5 Bc6+ Kb6 Bb7 Rd7 Rf5 Bf4 Ba6 Kc6 Rg5 Rd6 Rg1 h1Q Rg2 Bc4 Rh2 Rd1 Rd2 Qg1 Rd7 Bd3 Rf7 Qb6 Rfg7 Nc2 Re7 Qb8 Rh7 Ne3 Kb4 Ned5+ Ka3 Nb4 Be7 Re8 Bd8 Re7 Rhg7 Rd7 Rh7 Rd4 Rf7 Rc4 Re7 Ncd5 Ra7 Nc7
1b4R1/1p2PnBP/8/kq1BpRrn/1NqR2K1/4P1P1/b2BN1PP/4q1q1 w - - 0 1 illegal: Other
1Bn3n1/1R1r1P2/3pNP1P/nr6/1PR1pPP1/2Kr1q1B/B1Rp4/3b2Nk w - - 0 1 illegal: No possible last move, all moves rejected
2R4n/2Pr1kP1/8/R2b1pB1/Rbqr3r/3qPNq1/PBqn1PBP/2K3N1 w - - 0 1 illegal: No possible last move, all moves rejected
N2br2r/k3P1p1/q2PP3/P1n2B2/3K2bn/q1p1NPPR/3n3B/2BRqR2 w - - 0 1 illegal: No proof kernel
5BN1/2kp2b1/2PR4/1rbP2n1/PP2bR2/2NPQ3/nR3pPK/q2nr2R w - - 0 1 illegal: No proof kernel
B2r1b1k/3P2rn/qBNn2Pp/2pBPr2/5K2/1QbBn1N1/PRP2P2/3b4 w - - 0 1 illegal: No proof kernel
2B2R1b/4kP1P/1qPpP3/1b2Pp2/r1Bq1Q2/b1BPNK2/3nrB2/5qNn w - - 0 1 illegal: No proof kernel
1R4R1/3BQR2/1prnPr2/1PBbR1Pb/1p5K/1nP1b1n1/2P2pPq/2N3k1 w - - 0 1 illegal: No possible last move, all moves rejected
2r2K1b/Pqb5/2p2RPQ/1n2p1B1/BBp2PRn/BN2P2k/2PPr1r1/6n1 w - - 1 2 illegal: No proof kernel
4nnn1/p1Brp1nQ/1N1r2PP/4b2P/q1P1PBB1/3p1R2/kB3RP1/1bK5 w - - 0 1 illegal: Other
B3q1nQ/RB2pbN1/1b4PB/P3P2p/pqb4q/2B1b3/PKN2PrP/6k1 w - - 0 1 illegal: No proof kernel
bk2K1B1/4NQ1R/1p1p2P1/1npqNpN1/3n4/q1NP1PPr/1PP5/1q4Rr w - - 0 6 legal: proof: h4 g5 hxg5 e5 a4 b6 a5 e4 a6 Qf6 Ra5 Qc6 Ra1 Qb7 axb7 Bc5 Ra6 Be7 Ra1 Bf8 d3 e3 Bd2 Bc5 Ra4 Bd6 Ra1 Bf8 Qc1 exd2+ Kd1 Bb4 e4 Bd6 e5 Nc6 e6 Bb4 Ke2 Nb8 Qd1 Bf8 e7 c6 exf8N Na6 Ne6 Nb8 Nd8 Ke7 Qe1 Kf8 Qd1 Ke8 Ke3 a5 Ke4 h5 Ke5 f5 Kd6 a4 g6 c5 g3 a3 Ne6 a2 Be2 h4 Ng7+ Kd8 Bf1 h3 Qc1 d1Q Nf3 h2 Qf4 Ne7 Qe4 Nd5 Bg2 Nc6 b8N Nc3 Qd5 Bb7 Qf7 Kc8 Ne6 Nd4 Ke7 d6 Neg5 Rh3 Ke8 Ncb5 Nc3 Qb1 Ne5 Ra4 Be4 Ba8 Nbc6 Ra3 Rg1 h1Q Ne7+ Kb8 Bd5 Ra7 Be6 Qd5 f3 Rc7 Kd8 Rc8+ Kd7 Rch8 Rh1 R8h7 Ke8 Qe1 Rd1 a1Q Rg1 Rh1 Rd2 Qeb1 Rh2 Qa3 Rh6 Rg7 Rh7 Rg8+ Qf8 Rh8 Bg8 Rh3 Qf7 Rh1 Rg7 R8h5 Rh7 R5h3
2NRq3/1N2P1k1/Nrq3Pp/1bNp1p2/4P1p1/bBP3rP/nbQK1P2/2B5 w - - 0 1 illegal: No proof kernel
1rBn3N/4N2N/K2p2qr/2b1Nr2/6pP/r2PqRBn/1P1P1RPP/k6r w - - 0 1 illegal: Other
R4N1N/1r1ppBpN/PPrp1BP1/r2P3n/1NkP4/q5b1/3Prn2/5RK1 w - - 0 1 illegal: No proof kernel forced: wxDB
K1r2N2/1pbPQ1Rr/1P3n2/2b1B1r1/2R1NP1P/5P1P/npqr1P2/3B1k1r w - - 0 1 illegal: Other
nk2n1Q1/1q3Pn1/1RP2BnP/pN6/R3p1P1/P3PB2/2rbPn2/K1Nq2r1 w - - 1 2 illegal: No proof kernel
3Qqbq1/P1bb1P2/r2r2Pp/4BP1k/P1pPB3/1K1N4/2PR1nq1/1R2q2N w - - 0 1 legal: proof: g4 a5 e4 g5 b4 f5 bxa5 d5 h4 Na6 Be2 Nc5 Bf1 Ne6 gxf5 dxe4 Rh3 g4 Rh1 Ng5 hxg5 Qd3 Be2 Qd6 Bf1 Qd8 d4 Kf7 Kd2 e5 Kc3 c5 f4 b5 a4 b4+ Kc4 b3 a6 g3 f6 Kg6 f7 e3 Na3 b2 Qe1 b1Q Bd3+ e4 Bd2 e2 Bc3 g2 Rh2 h6 Qd1 e1Q Nh3 g1B Qe2 Qb7 Ba5 Nf6 Rb1 Bd7 Bc7 Ng4 f5+ Kh5 g6 e3 Be5 Qg2 Be4 Rg8 Qd2 e2 Qa5 Nf2 Kb3 Qe8 Qd8 Rh8 Rh1 Bh2 Nc4 Qa5 Nb2 e1Q Nd3 Ra7 Bf6 Bc7 Rh2 Ra8 Be5 Qb6+ Ka2 Qf6 Kb3 Qg7 Kc4 Qg8 Kb3 Rc8 a7 Rb8+ Ka3 Rb6 Ka2 Ra6 Kb3 Qe2 Rhh1 Qd2 Rhd1 Qe1 Rd2 Be6+ Kc3 Be7 Ng1 Qg7 Ne2 Qd7 Qa8 Rd8 Nb2 Qe8 Nd3 Rdd6 Qd8 Bd7 Kb3 Qgg8 Ng3+ Kg4 Bh8 Bf8 Nh1 Kh5 Be5 c4+
1Rn3b1/1B1B1p1q/1NP1r2q/4p2P/2q2P1K/pQ1PPPr1/N2qPk1b/7R w - - 1 2 illegal: Other
1QBKnr2/1pp1B3/1bP3k1/PPb2b2/Pp1PP2R/1NR1P2n/2n4n/r3qN2 w - - 0 1 illegal: Other
2q2r2/2pRnB2/1p2N1P1/1B1ppp1p/N1PP1P1n/3r1kPP/Qr1R2bP/2K5 w - - 3 4 illegal: Other
6n1/PR1P1P2/1b3nPB/bK1bn3/4B2B/1brQPP2/nk1P2Nr/1b4N1 w - - 0 1 illegal: No proof kernel
kN3Nbr/2p2B2/P1KnP3/1R5P/P3P2p/2P1Pr2/bNR5/1nb2qnQ w - - 0 1 legal: proof: d4 a5 e4 e5 dxe5 a4 g4 a3 bxa3 Ra6 a4 Qg5 a5 Qe3+ fxe3 Ra8 h4 h5 gxh5 g5 h6 Ke7 h5 Ke8 e6 Na6 Ba3 Nb8 Bd6 Be7 Bg3 Bf8 Bh4 gxh4 Kd2 Kd8 Kc3 f5 Kd4 d5 a4 b5 a6 b4 h7 b3 c3 b2 Qd2 f4 Bb5 f3 Qe1 f2 Qf1 Ba3 Bd7 Ne7 Qb5 f1Q Nf3 Nf5+ Ke5 d4 Kd5 d3 Ng1 d2 Nf3 d1B Be8 Bd7 Ra2 Kc8 Bf7 Be8 Nbd2 b1N Nd4 Nc6 Nc4 Ne5 Rc2 Nf3 Nc6 Bc1 Nb8 Ng1 Nb2 Nd6 Qe2 Rf8 Qg2 Be2 h8N Bc4+ Kc5 Ba2 Ng6 Rh8 Rh2 Rf8 Qh1 Rh8 Rhe2 Rf8 Bg8 Rf3 Nf8 Bg6 Rh2 Bh7 Bf7 Bg8 Rhe2 Qf2 Kc6 Qf1 Nbd7 Rb8 Rg2 Ra8 Rg5 Rb8 Rb5 Ra8 Nb6+ Kb8 Nbd7+ Ka7 Nf6 Rd8 N6d7 Ka8 Nb8 Rd7 Bg6 Rh7 Bf7 Rh8
3B3n/3rrP1P/bB3P1n/n2B4/k1bRPppP/Pp1P4/R4qN1/4K1Q1 w - - 0 1 illegal: No proof kernel
R7/p2BB1bP/Q3n1P1/4rqN1/PnP1R1P1/q2bp1B1/P2P1q2/1K1r1k1n w - - 0 1 illegal: No possible last move
3n1Kb1/3PnP2/BBP1rPr1/p5k1/PR1Qp1r1/2P1R3/1n2PR2/1bq2N1n w - - 1 2 legal: proof: g4 c5 h4 f5 Nc3 g5 gxf5 c4 Nb1 g4 c3 Bh6 Na3 Bg5 hxg5 d5 Nc2 d4 b3 d3 bxc4 dxc2 c5 Qd4 Rh3 Qd5 Rh1 Qd8 f4 Kf7 Kf2 b5 Kg3 h5 Kh4 a5 d4 e5 a4 g3 c6 b4 d5 g2 f6 Kg6 f7 e4 d6 b3 Rh3 b2 Re3 b1B Nf3 g1R Nd2 Rh6 Bh3 Na6 Nf1 Nc7 Qd4 Ne7 d7 Ba6 Be6 Bc4 Bd5 Bb3 Bc4 Ne6 Ba6 Bc4 Ba3 c1N Bc5 Nd3 Bb6 Nb2 Ra3 Qb8 Rb3 Nd8 Rb4 Kf5 g6 Qd6 Qh8 Qd2 Qd4 Be6 Qd3 Kf6 f5 Qc1 Qc4 Nb7 Qd5 Re8 Qd6 Nd8 g7 Rhg6 g8R R1g4+ Kh3 h4 Qd4+ Kg5 f6 Bf5 Rh8 Rgg8 Rh6 Bh7 Rh5+ Kg6 Rf5 Kh6 Rf2 Kg5 Bc7 Rg6 Bb6 Rf4 Kh2 h3 Kg3 h2 Kh3 Bg8 Kg3 Kf5+ Kh3 Rf3+ Kh4 h1N Kh5 Rg4 Kh6 Rff4 Rd3 Rg2 Rh3 Kg4 Kg7 Kg5 Re3 Rfg4 Bc4 Nc8 Bd3 Re6 Kf8 Ne7 Bb5 Rh2 Bd3 Rh6 Ba6 Rg6
3b1R2/1RNBp1r1/2P1QPrb/3P3b/K2kPPP1/R1n2np1/2n2P1b/q5N1 w - - 0 1 illegal: Other
3bb1q1/bPQn1Bp1/rB2Nqn1/RP1PR1Bp/2K4P/5PPP/5b1r/3k4 w - - 1 2 illegal: Other
2k1b3/3r2PQ/1R1P2b1/qpP1R1pb/p2BPqP1/b1Nn1K2/PP1N4/R4n2 w - - 2 3 legal: proof: h4 b5 h5 a5 e3 e5 f3 e4 fxe4 g5 Bc4 Ra6 Bf1 Rg6 hxg6 Ba6 Qe2 Bb7 Qd1 Bc8 e5 c6 e4 d6 exd6 Qc7 Rh5 Qe7 Rh1 Qd8 d4 Kd7 d5 Nh6 Bc4 Ng8 Bb3 Ke8 d7+ Ke7 Bc4 Kd6 Bb3 Kc5 d6 Kb6 Bd5 cxd5 Ne2 Kc5 Ng1 Kc6 Kf2 Kb7 c4 h5 c5 f5 g3 h4 Na3 f4 Nc2 f3 Rb1 d4 Bd2 d3 Bf4 d2 Ke3 f2 Qe2 f1B Rc1 d1B Rh3 a4 Qf3 Nh6 Qh5 Ng4+ Kd4 Ne3 Rh2 h3 Nf3 Na6 Qg4 Bc4 Ra1 Bf7 Qf5 Nb4 Rg2 h2 Nd2 h1Q Na3 Bg7+ Be5 Qh2 Nab1 Nf1 Nc3 Rh7 Rf2 Qa5 d8R Bh5 g4 Bd7 Rf3 Nd3 Rb8+ Ka6 Rf2 Bde8 Rb6+ Ka7 Qd7+ Ka8 Rf5 Bf6 Ra6+ Kb8 Qe7 Kc8 Rb6 Ng3 Ke3 Nf1+ Kf3 Rg7 Bg3 Be5 Bf2 Bf6 Ncb1 Bc3 Re5 Bb4 Nc3 Ba3 Be3 Bd5 Qa7 Rd7 Bd4 Bg8 Ra6 Bh7 Rb6 Rd8 Qf7 Rd7 g7 Bf5 Qg8 Bfg6 Qh7 Qf4+
r3n3/2p2PPp/2PP1rbk/1p3QpB/1P1npK2/2R1rNBN/2rq2PP/7N w - - 0 1 illegal: No possible last move
b2bqR2/1p2Pp2/8/P1P1p1B1/PkNQQP1N/3n3B/pP2P2r/rnq2K1b w - - 0 1 illegal: Other
7r/r1B1p1R1/1pP5/1P2r1b1/b1nPp1KB/1Pp1P1nb/P1Pq3N/1Bk3NR w - - 0 1 illegal: Other
q6r/k1p3p1/qp1Pq2p/6RP/Pp1NBbPP/N1P2Qn1/1P1P4/2K2b1R w - - 0 4 illegal: No proof kernel forced: bxDB
rQb2bN1/N2k1rbn/q1N1b1N1/R1rq3Q/R3BR2/5N2/BN1N3B/1K6 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 d4 e5 Kd2 c5 Kc2 h5 b4 a5 d6 e4 d7+ Ke7 d5 e3 f6+ Kd6 b6 a4 f7 c4 b7 c3 b8Q+ Ke7 d6+ Ke6 b5 a3 b6 h4 b7 e2 Nd2 e1R Bd3 a2 Qh5 h3 Ngf3 h2 Rf1 h1B Be4 Qc7 d8N+ Kd7 Nc6 Nh6 g8N Ra6 g7 Ra5 g6 Ra7 Na5 Re2 Nc4 Ra5 Nb2 Kd8 d7 Rf2 Ne7 Qh2 g8B Ng4 g7 Qe5 Ng6 Rb5 Rg1 Nf6 Rg4 Nh7 Rf4 Bd6 Rf5 Rc5 f8R+ Qe8 R8f6 Qe5 Be6 Bg2 g8N Bf8 Rf4 Qd6 R6f5 Qa6 Rd5 Bf1 Rd4 Bb5 Ra4 Bc4 Rg4 Rf1 Qbe5 Bd5 Ra5 Rh1 b8N Rh4 Nf6 Bh6 Nb3 Bcb7 Bf4 Bc4 Kc1 c2 B6d5 Re8 Ng8 Bf8 Bf7 Bcd5 Bh2 Bc4 Qh6 Rh5 Rf4 Rf5 Be6 Rf7 Qhh5 Rc7 Qb5 Rc5 B6d5 Kc7 d8N Kc8 Ndc6 Kc7 Na7 Kd8 Nbc6+ Kd7 Rg4 Ra8 Rf4 Bc8 Rb1 a1Q Qb8 Qa2 Nbd2 Bg7 Ra1 Bb3 Bd3 Bf8 B5e4 Be6 Bc4 Qb3 Bcd5 Qbd3 Bb3 Qd5 R1a4 Bg7 Bc4 Bf8 Ba2 Bg7 Nbc4 Bf8 Kb2 c1B+ Kc2 Bb2 Kb1 Bh8 Nb2 Bhg7
4RQ2/kNpRBB2/q1bbR3/N2rR2N/b1b5/2K1RR2/1nr4Q/2b1R2B w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Nc6 d5 Na5 bxa5 Ba6 Kf2 Bb7 Ke1 Bc8 g4 Kd7 e4 f5 d4 h5 Kd2 h4 b6 f4 d6 Kc6 a6 f3 e6 a3 g6 a2 g5 h3 d5+ Kc5 b7 Kb6 b8Q+ Bb7 d7 h2 d6 f2 g7 Ra7 e5 Qc8 d8R Nf6 g8B Nd7 g6 Rh3 g7 Ra8 e7 Nc5 e8R Rg3 e6 Rf3 a7 Qd7 e7 Ne6 Na3 Qb5 d7 Ka6 Qe2 Nf4 Nh3 Re3 Bg2 f1B Nc4 Bc6 Bf7 Ra3 g8R Nh5 Rg5 Bh6 Nf4 Bd5 Re5 Nf6 Na5 Bb3 Kc3 Ng4 Nh5 Nf2 Bg5 Nd3 Re1 a1B+ Qb2 Qb6 R1e3 Ra2 Bgd5 Be2 Re1 Ba4 Bh1 Qg6 Bf6 Bg5 Rf3 Bc1 Qb4 Rb8 Rfe3 Rb5 a8R+ Kb6 Rf8 Bf1 e8R Be2 Rab8+ Ka7 Be7 Qa6 Rb6 Rd5 Rbe6 Bf1 Rc8 Be2 d8N Bf1 Ndb7 Be2 Bf3 h1B Rcd8 Bed1 Bh4 Bd7 Bg6 Be2 Rg5 Qb5 Kc2 Rd4 Rf4 Rd6 Bf7 Qa6 Rb5 Rd4 Qf8 Bg2 Rc5 Bb5 Rd7 Ba4+ Kb1 Rd6 Be7 Bef1 Qd2 Rc2 Rcf5 Bd4 Rfe5 Bc5 Qf2 Bh1 Qh2 Rd4 Bc6 Bd6 Ka1 Bd5 Rff6 Bc4 Bh1 Bg2 Rf2 Bgc6 Rff3 Rd5 Kb1 Nb2 Ka1 Bc4b5 Ka2 Rdc5 Ka3 Bc4 Kb4 Rd2 Kc3 Rcd5 Rc8 Re2 Re8 Rc2+
1nk1NB1q/4qKR1/1Q2N1R1/2N2nqq/n1R2r1R/2Q4R/B2Rbp2/R3Q3 w - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 g3 Bh6 fxe5 f4 g4 Ra6 Ra3 Rf6 Ra1 Rf5 gxf5 g4 Nf3 Ba6 Ng1 Bg5 hxg5 Bc8 Kf2 Kd7 d4 c5 e4 h5 b4 c4 e6+ Kc7 f6 g3+ Kf3 c3 e7 h4 e8R h3 e5 c2 Ke4 a4 d6+ Kb7 Kd5 a3 g6 g2 f7 a2 f8R f3 d7 f2 Ke6 h2 g7 Rh7 b6 Rh8 b5 Nc6 d5 Nb8 d6 Ne7 g8R Nbc6 Nf3 g1Q Bh6 c1Q Ng5 Qc7 Rf6 Qd8 Qe1 Qa3 Rg7 Qh3+ Kf7 Rg8 e6 Qa3 Nd2 Qag3 Nb3 Rh8 Bc4 Na5 Rfg6 Qe5 Nc5+ Kb8 b7 Nec6 e7 Qd5+ Nge6 Qb6 d8Q Nb3 d7 Qa6 Qb6 Qgg5 d8R Qa7 Rd7 Qd1 Rd2 Qdh5 Rf8 Nbd4 e8N Nf5 Qa5 Bd7 Qc3 Rh7 Rh8 Qa3 Rg1 h1Q Rg4 Qa7 Rh4 Qh2 Rad1 a1N Ba2 Nb3 Ra1 Bc8 Nd3 Nc5 Rh3 Na4 Ndc5 Qb6 Rh4 Qbd8 Rh3 Ka7 b8R Ba6 Rc8 Nb8 b6+ Ka8 Rc7 Be2 b7+ Ka7 Nb3 Qe5 Rc4 Kb6 Nbc5 Kc6 Nd3+ Kd7 Rhh4 Qc5 Rh3 Qcc7 Ndc5+ Kc6+ Rd7 Qf3 Nf6 Na6 b8Q Qcc8 Qbb4 Nb8 Rdd4 Qd6 Rd8 Rh8 Rgg8 Qfg4 Bg7 Rh4 Rd7 Qdc7 Rf4 Q7d8 Rd2 Q4h5 Rfe4 Qd6 Qbb1 Qcd8 Rf4 Qd4 Bf8 Rg4 Ne8 Qdh8 Rg7 Qd6 Na6+ Kd7 Nac5+ Kc8 Qb6 Qdd8 Rh4 Qd6 Rf3 Rf4 Rfh3 Qde7+
2N1k3/r2Nn3/1nB1Rp1N/2q1pQ2/1NQ4K/NN1RbbB1/2n1n3/BN3R2 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 g5 g4 Bb7 gxh5 g4 e4 g3 fxg3 Bc6 g4 Bb7 g5 Bc8 d4 a5 e5 Rh7 d6 Rh8 d5 Bh6 Be3 Kf8 Bc1 Ra6 d7 Rd6 exd6 Kg7 Qb3 Kh7 Qa4 Bf8 Qd1 Kg7 Kf2 c5 Kg3 c4 h4 c3 b4 e6 h6+ Kg6 h5+ Kf5 g6 Kf6 b6 c2 g7 a4 h7 a3 b5 a2 h6 Nc6 b7 Nge7 g8N+ Kg6 b8N f6 b6 Kf7 b7 Ng6 Qh5 Qa5 d8R Nd4 d7 Qc7+ d6 Be7 Bb2 c1N Na3 Ncb3 Bb5 Qa5 Nf3 Qd2 Rhe1 Qe2 Qf5 Nc1 Bc6 Nf8 Nd2 Qe3+ Kh4 Qd3 Ndb1 Qc3 Na6 Nd3 b8N Qa5 Nc5 Qb4 Nb3 Qc4 Re3 Ne1 Re8 Qa4 d8B Nd3 d7 Nc5 Rd3 Qb5 Bc7 Na4 Bg3 Bc5 Ne7 Bb7 Nc8 e5 Re6 Rg8 h8Q Ba8 h7 Ng6+ Kh5 Rf8 Nc3 Nh4 Bf3 Be7 d8N+ Ke8 Rf1 a1N Ncb1 Ng6 Ndc6 Qd5 Nb4 Nac2 Ba1 Ne2 Qg7 Qd4 h8N Nb6 Nf7 Bb7 Nh6 Rf7 Rd6 Ba8 Qg8+ Bf8 Rc6 Ra7 Qc4 Bc5 Nd7 Ne7 Re6 Qd6 Bd5 Be3 Kh4 Qc5 Bh1 Bf3 Bg2 Bg4 Bc6 Bf3
1nk5/1br1q2R/3R2b1/2RB4/1NR3qb/N1RKQ1QQ/rR1n1R1B/2N1b2q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 b4 c5 f4 h5 d4 e5 g4 a5 f6 a4 d6 c4 f5 c3 g6 e4 d5 h4 f7 e3 g7 c2 b6 a3 b7 a2 g5 h3 f6 h2 b5 Ra5 g6 Rh4 b6 Re4 Na3 Qc7 Bg2 Be7 f8R Nc6 b8Q Qb7 f7 Qc7 b7 Qb6 Qa7 Nd8 b8R+ Bb7 Kd3 e2 Qf1 e1B Ne2 Rea4 Bf4 Qf2 Nc1 Ra6 Qe3 Bc8 Rb2 Nh6 g8Q Ba5 g7 Rc4 Re8 Qe1 f8R Bf6 Re4 Rc7 Rc4 Bh4 Be5 Bb4 Rf2 Ng4 Bf3 Bb7 Qh3 Kc8 d7+ Kb8 d6 Nf6 Bd5 Ne4 Rab1 a1Q Rb3 Ra4 R1b2 Nd2 Rbc3 Qg1 Bf4 Qg4 Be5 Rc8 Rc5 Nc6 d8N Rc7 d7 Qa2 R3c4 Ba5 Bf4 Qb3+ Rc3 Qb4 R5c4 Qe7 Bd6 Ka8 Be5 Nb8 Nc6 Bb4 d8R Ra7 Rc8 Ra5 Rd1 h1B Bh2 Ra6 Rc5 Ba5 Nb4 Bf3 Ne2 c1Q Rh1 Qcg1 Nc1 Bd1 R5c4 Ba4 Rd8 Be8 Rd6 Bh5 Qhg3 Qg2 Qge6 Bg6+ Qf5 Q2h3 g8R Ra7 Rg7 Qg2 Rd1 Qh1 Rh7 Ra6 Nba2 Bb4 Rdc6 Ra4 R6c5 Ba5 Nb4 Ka7 Nac2 Ra2 Na3 Nb1 Na6 Qf4 Bc6 Rd7+ Ke2 Bc8 Rb3 Rc7 Qfh3 Be1 Rd6 Nd2 Nb4 Qg4+ Bf3 Ba6 Rc3 Bc8 Re4 Kb7 Kd3 Be6 Bg2 Kc8 Bf3 Bd5 Bg2 Bgf7 Rec4 Bb7 Bd5 Bg6+
2r1BNNN/6NN/qnR1QNK1/1q2Q3/n4q1B/4bR2/1b5Q/1kbbNrR1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 b4+ Kd6 d4 c5 h4 e5 f4 g5 f6 a5 f5 g4 b6 g3 b5 a4 b7 g2 h6 a3 b6 c4 f7 a2 h7 c3 h5 c2 h6 Ra4 f6 Ra7 Qe2 Ra4 Rh3 Qc7 Bg5 c1B Nd2 Na6 b8R Be6 b7 Bd7 Rf3 Qc6 Rc8 Qc5 b8Q+ Nc7 Bh4 Bb5 Kf5 e4 Kg6 e3 Ne4+ Kd7 d6 Kc6 d7 Kd5 d8N Na8 Ne6 Rc4 Qh2 Ba4 Ng7 Qb5 Rc6 Bfa3 f8N Nb6 f7 Nf6 Qe1 Rg8 h8Q e2 Nh7 Rc8 f8N Nfd7 Rb1 Rc5 Nef6+ Kc4 d5 a1Q d6 Bab2 Qg8+ Kd4 Qe6 Rf5 Qeg3 Nc5 d7 e1Q d8N Qe5 Nf7 Qe3 Qc7 Kc3 Qce5+ Kc2 Bc4 Qa5 Bb5 Qf4 Rd3 Qa7 Rc7 Qc4 Be8 Bg5 Rc6 Qa5 Nf3 Qab5 Rg1 Bgc1 Ne1+ Kb1 Nhg5 Bd1 h7 Qaa6 h8N Rf1 Nh6 Nca4 Nhg8 Qg4 Rf3 Qf4 Rh1 g1B Ngh7 Bc5 Rg1 B5e3
2NR3N/rN1B4/1rNK3n/b1q1n1r1/b4N2/2N5/3QqB1k/1nRQrBRN w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 b7 h4 g5 a3 f7 h3 b6 a2 g7 h2 g6 Ra5 Nc3 Nc6 b8N Bd7 b7 Rh7 Nge2 Qb6 Rg1 h1N Ng3 Rh2 Be3 Qd8 Rc1 Nce7 Nc6 a1R b8Q+ Qc7 Qd8 Nf6 g8N Rg2 g7 Nf5 Nge7 Ra8 g8B Ne4 f3 R1a3 Bf2 R8a7 Bh7 Bg7 f8N Nh6 Bf5 R3a6 Nfg6 Nd2 Nh8 Nb1 Ke4 e5 f4 Qb8 Be6 Qb6 f5 Qb2 f6 Rb6 f7 Qb5 f8N Qe2+ Be3 Bf6 Nfg6 Bg5 Nf4 Bh4 Ngh5 Rg5 Bg4 Be1 Ng3 Rb5 Qa5 Rb6 Qa2 Be8 Bd7 Bd2 Na4 Ba5 Nc3 Qh5 Bf2 Qh2 Kd3 e4+ Kc4 e3 Qb2 e2 Nc8+ Kc7 Kc5 e1R Qb5 Qg2 Qbd3 Qe4 Q3d2 Qe2 Be3 Nf2 Nh1 Nfg4 Bf2 Ne5 d6+ Kb7 Bdh3 Bd7 d5 Be8 d7 Kc7 d8N Bd7 N6e7 Bc6 Nb7 Ba4 Bhg2 Kd7 Nc6 Kc7 d6+ Kd7 Nfd5 Ke6 d7 Kf5 d8R Kg4 Bh3+ Kf3 Ne3 Kf4 Kd6 Kf3 Bf5 Kf4 Ng2+ Kf3 Be4+ Kg4 Bh7 Kh3 Bf5+ Kh2 Bd7 Na3 Rb1 c1Q Nf4 Qc2 Rc1 Nb1 Ne4 Qcc4 Nc3 Qc5+
1k1b1N2/Nn2nQ1r/qBK1brQn/5b2/RB6/2N3R1/1BB2B2/Rbn1B1B1 w - - 0 1 illegal: No proof kernel
2Q5/1rB3qr/Q2QQ1p1/r1NQnRNk/RQ5N/4n3/bQn2R2/1b2bK1B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 a5 e4 c5 b4 f5 d4 Kf7 d6 g6 d5 c4 d7 c3 d6 a4 h6 a3 h5 a2 h7 c2 h6 f4 e6+ Kf6 e5+ Kg5 e7 Na6 e8Q Qf6 d8N Qf7 b6 Rb8 d7 Qe6 b7 Qc6 e6 Qc3+ Nd2 f3 e7 Qf6 b5 Ra8 b8Q Qc6 b6 Nc7 b7 Qf6 Nb3+ Kg4 Qa7 Bg7 b8Q Ne6 Qdd6 Qf8 Rh2 Bb7 Nf7 Bd4 d8Q Qg7 Bf4 c1N Bg2 f2+ Kf1 Bb6 Nf3 Ba5 Qaa6 Nd4 Nh4 Ra7 Nc5 Nd3 Bh1 Kh5 Ng5 Bd5 Qb4 Nf6 Qeb5 Bg8 e8Q Rb7 Qc8 Nc2 Qee6 Ng4 Qbc6 Bf7 Qcd5 Nde5 Rg2 Rd8 h8R Rdd7 h7 Nge3+ Ke2 Rdc7 Rf8 f1B+ Kf2 Bg8 Rf5 Bd3 Kg1 Be4 Rf2 Rd7 Qa4 Be1 h8Q+ Qh6 Qhf6 Rh7 Qb4 Qg7 Bh2 Nd7 Qfb2 Ne5 Rd1 a1R Rd4 N3c4 Kf1 Ra5 Rd3 Bf7 Ra3 Bg8 Ra4 N4e3+ Kg1 Na3 Bg3 Bb1 Bf4 Nac2 Bh2 N3g4 Kf1 Nge3+ Ke2 Qc7 Qdb3 Ng2 Qed7 Nf3 Qdd2 Rb8 Kf1 Rb7 Qd1 Bd5 Qde6 Qg7 Bc7 Bc4+ Qdd3 Ne5 Qad6 Bd5 Q3a6 Bc4+ Qbd3 Bca2 Q3d5 Nge3+
RN1b2BN/2Qr3b/3RQn1B/nrK1pq1b/k5q1/NR4B1/3n2N1/1N3N1N w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 a5 Kc4 h5 b4 c5 g4 h4 d4 e6 f4 h3 f6 h2 f7 a4 d6 a3 b6 Kc6 b7 a2 g6 Bg7 f8N Qb6 f5 Ra6 d7 Rh5 d8N+ Kc7 b5 Rh3 d5 Bh8 f6 Ra5 g5 Rh5 g7 Ra6 f7 Ne7 g8Q Qa7 b6+ Kd6 g6 Qa8 g7 Ra3 Nf3 Ra6 Nfd2 Re5 Qc2 Rg5 Nd7 Nbc6 f8N Ra3 b8N Rd3 b7 Rg2 Ng6 Rgg3 Nde5 Rg5 Nh4 Qa5 Ndf7+ Kc7 d6+ Kb6 d7 Nd5 d8R Nf6 Be2 Rd7 Nf1 Rf5 Rg1 h1B Rg3 Bf3 Bh6 Bh5 Ng2 Rg5 Rb3+ Qb5+ Kc3 Ka5 Nc4+ Ka4 Nca3 Na5 Bc4 Rf5 Bd5 c4 Kd4 c3 Qc1 Qd3+ Kc5 c2 Qe8 Qd1 g8N Qg4 Ne7 Re5 Nf5 Bg7 Qe1 c1Q+ Qc3 Qcg5 N5g3 Q5f5 Nh1 Bf8+ Qe7 Bg7 Nh8 Bf8 Qd6 Be7 Rg8 Bd8 Rg6 Re4 Qe3 Rb4 Qc7 Rb6 Nc6 Rb4 b8B Ba6 Qb7 Bb5 Bg3 Bd3 Nb8 e5 Bg8 Rb6 Qd2 Bc2 Qdd5 Rb4 Qe6 Rb6 Nbd2 Bb1 Qc7 Bc2 Rd1 a1N Ndb1 Rb4 Rd6 Bd3 Rc3 Rb2 Ra6 Nb3+ Kb6 Qfg5 Qe8 Nh7 Rd6 Nf6 Qe6 Nd2+ Kc5 Bh7 Ra8 Q5f5 Re3 Rb6 Rb3 Rb5+
1BNr1QB1/8/bRK3pB/1Nb2QB1/B2b1n2/qn1QBN2/2rR4/k1q3nB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kd4 a5 h4 a4 b4 c6 e4 f4 b6 g6 b7 a3 h6 a2 b5 f3 h7 f2 d6 Ke6 Kc5 Bh6 d4 Bd7 d5+ Kf7 h5 Qh4 b6 Qh3 e6+ Kf6 e5+ Kf5 e7 Ke4 e8B Nf6 e6 Bc8 d7 Qh2 d8N Bf4 d6 Be5 e7 Bc3 d7 Ra4 h6 Qg2 Be3 Rd4 Bf7 Ne8 Nf3 Ng7 e8B Rd2 Rh2 Qh3 Bg8 Rb2 Na3 Rc2 Bg2 f1Q Nf7 Nh5 d8B Nf4 Rb1 a1N Nb5 Nb3+ Kd6 c5 Bh1 c4 Rd2 Qg1 Bg5 Nc6 b8Q Ncd4 b7 Nde2 Kc6 Bd4 Qd6 c3 b8B Ba6 Qf8 Qe1 Rb2 Ng1 Qe2 Qc1 Qf1 Kf5 Nfd6+ Kg4 Nc8 Bc5 Bf6 Kf5 Bg5+ Ke4 Rb1 Qa3 Qf2 Qf1 Qd6 Qfc1 Qd4+ Kf5 Qd3+ Kg4 Nba7 Nfh3 Qh2 Qe1 Qf2 Nc1 Bb3 Ra2 Nd4 c2 Bef7 Rd8 Qf6 Nf4 Ba4 Qd1 Rb7 Nb3 h8B c1B h7 Rc2 Nf3 Bb2 Nb5 Qc1 Bg7 Bc3 h8Q Ba1 Qc4 Be5 B7h6 Bed4 Qe7 Kf5 Qef6+ Ke4 Qf8 Rd5 Bg8 Rd7 Qf1 Rd8 Re2 Kd3 Rb6 Rd2 Rh2+ Kc2 Qf5+ Kb2 Q1d3 Rc2 Rd2 Ka1
r2Q2Bb/K3BNqr/1Npbk3/Q1R1Nb2/4nqn1/3N1RNq/1N1N2R1/7Q w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 a5 Kd4 g5 Kc5 e5+ d6 e4 d4 c6 h4 a4 f4 e3 b4 e2 f6 e1Q f5 a3 d5 g4 b6 g3 b5 a2 b7 g2 h6 Be7 h7 Qea5 h5 Qac7 b6 Bf8 h6 Ne7 d7 Bg7 d6 Bf8 Ba3 Ng6 Ne2 Be7 Rh2 Ra4 Ng3 Ra6 Bc4+ Kf8 f7 Qe8 d8Q Nf4 Nd2 Ra8 Qh1 Ra6 Rc1 Bg5 d7 Rg8 h8N a1B h7 Ne2 Ng6+ Kg7 f8N Bh6 h8N Ra7 Nf4 Bf6 N8e6+ Kh7 Nf7 Be5 f6 Ra8 Nd3 Kg6 Nb2 Rg7 Nf4+ Kh7 Nfd3 g1Q+ Rf2 Nd4 Rg2 Kg6 Bd5 Bef4 Nfe5+ Kg5 Bg8 Qh5 Rc2 Re7 f7 Bg7 f8R Qh3 Rf6 Bh8 Rf7 Be3 Rf3 Bf4 Rc4 Kf6 Nf7 Ke6 Nfe5+ Rf7 Qg5 Bf6 d8N+ Ke7 Rc2 Rh7 Ndf7 Nd7+ Kb4 Qe3 Ng4 Qb8 Qa5 Qbe5 b8Q Nc5 b7 Bf5 Qbd8+ Ke6 b8N Q3e4 Nd7 Bh8 Rc1 Qf6 Rc3 Bb8 Nge5 Qf4 Kc4 Ne4 Be7 Qg7 Kb4 Nf2 Kc5 Ne4+ Kb6 Nc2 Rc5 Ne3 Kb7 Bd6 Nb6 Rc8 Ka6 Ng4 Ka7 Ra8+
1KB3Q1/2BprQ1b/B1b2B1B/RN5Q/1kn3B1/2R1bNq1/2n1r3/2bBR1r1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 e5 Kc3 Ke7 Kc4 h5 Kd5 a5 b4 e4 c4 e3 f4 h4 g4 a4 c6 e2 g6 e1B c5 h3 g7 h2 b6 a3 b5 a2 f6+ Kf7 b7 Nh6 g8B+ Ke8 c7 Ra3 c6 Rf3 b6 Rg3 f7+ Ke7 f5 Rf3 g5 Rh3 g6 Rh7 g7 Rh5 Bh3 Ng4 Na3 Bd2 Nb5 Nh6 Bg4 Bf4 Bb2 Rh4 Nf3 Bd6 Re1+ Be5 Rc1 a1R Rc3 Na6 b8R h1B b7 Rc1 Ra8 Rh2 b8B Bb7 c8B Re2 Bc7 Nb4+ Kc5 Nc2 Kb6 Bg2 Ka7 Bf4 Kb8 Be3 Ra5 Ba6 Nh4 Be4 Nf3 Bb7 Qd5 Kf6 Ba1 Ba3 f8B Nf7 Qd1 Ne5 Bb3 Ba8 g8Q Nc4 Bh6 Ke7 Qdd5 Qf8 Ba4 Qg7 Ba6 Rb1 Bb3 Bac1 Bb2 Nd4 Bd1 Nc2 Ba1 Qg6 Qe5+ Qe6 Qh2 Qg6 Qh5 Qg7 Bcf4 Qe5+ c7 Bac6 Bh2 Qg7 c8B Qg5 Bc7 Qh4 Nd4 Qg3 Nf3 Nd2 Rc5 Bb2 Rg1 Na3 Ba4 Rc1 Rc2 Ndc4 Bb3 Rd1 Rc1 Rde1 Bd1 Bb1 Rc2 Bbc1 Bh8 Rf1 Rc3 Bd3 Bd4 Nc2 Rh1 Rg1 Bh8 Rgg2 Re1 Rg7 Qh7 Rg1 f6+ Kf8 f7 Ke7 Qg8 Bf5 Na3 Ke6 Nb5 Kd5 f8Q+ Rf7 Qfg7 Kc5 Qf6 Re7 Qff7 Kb4 Bf6 Bh7
rnBNNRQ1/2Bn2B1/Q5q1/rB4q1/B2r3p/2Nb1QBK/1b1R4/4r1kB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 f5 e4 h5 b4 c5 d4 a5 d6 Ke6 d5+ Kd7 b6 h4+ Kh3 f4 g4 c4 e6+ Ke8 e5 c3 b5 c2 e7 Kf7 e8N Kg6 b7 a4 d7 a3 d6 a2 b6 f3 e6 f2 e7 Ra5 Ne2 Ra8 Nf4+ Kf7 Nc3 Rh5 Rh2 Na6 b8B Rh6 b7 Ra7 Bc7 Rg6 b8B Nc5 Qf3 Bg7 Bb2 c1Q Ne6+ Qf4 Bb5 f1R Rd2 Rf2 Rf1 Ba6 Ba4 Qc8 d8Q a1R d7 Qb7 Qc8 Re1 d8Q Bd3 Qd6 Qf5 Qa6 Nd7 Ba1 Rf6 Nd8+ Kg6 Bg3 Qe5 Bc7 Qc6 Bb2 Rf5 Bb5 Kh7 g6+ Kh6 Ba4 Bh8 g7 Ngf6 g8B Kg5 Bd5 Nb8 Qe6 Ra8 Qg8+ Bg7 Be6 Qe3 Bc8 Ra5 Ba1 Nfd7 Bb5 Kg6 g5 Qf4 Bb2 Kf5 g6 Bh8 g7 Qg6 Nd6+ Ke5 e8B Kd4 Ba4 Qfg5 Ba1 Nb6 Beb5 N6d7 Ne8 Rg2 Qge6 Rge2 g8B Re4 Qeg4 Bg7 Bd5 Rf4 Qge6 Be5 Qg8 Rg4 Qf5 Ke3 Bh1 Rd4 Qg4 Bg7 Rf8 Re4 Na2 Bh8 Bg7 Rc4 Bh6 Bb2 Nc3 Rd4 Bg7 Be2 Bgf4+ Kf2 Qf3+ Kg1 Bg3 Bd3
2b4r/Bk1B3Q/4np2/r6B/nbB1qQ2/R1Q2B1N/B1BR2b1/q2NNK1b w - - 0 1 illegal: No possible last move
R2r2Rb/RBRb2N1/R1R4Q/1K1pB3/1n1Q2qp/B7/1b1Rn1Qq/4krN1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 h5 b4 a5 g4 a4 f4 a3 f6 Kg6 c6 d6 f5+ Kf7 b6 a2 g6+ Ke8 g5 e4 c7 Kd7 b7 Kc6 f7 h4 g7 e3 f6 e2 g6 e1B b5+ Kb6 Rh2 Ka5 b6 Nc6 b8R Ra6 b7 Nce7 Na3 Bc3 Rd2 Rh6 Nb5 Bb2 Ra8 Qd7 b8B Nd5 Nd4 Ba3 Ra7 Qe8 Bg2 Nb4 Bb7 Nc6 Nf5 Be7 f8R Nb4 f7 Nf6 g8Q Qa4 g7 Bd7 c8R Rh8 Rc7 Ne4 Qg4 Ng3 Qd4 Bf6 Rd8 Rh5 f8Q d5+ Kc5 Be5 c4 Bb2 Rc6 Bf6 Be5 Rh8 Rda8 Ne2 Qd6 Qc2 Qdf8 Ka4 Qd6 Kb3 Kb5 Qe4 c5 Qg4 Qdf8 Be6 Rc7 Bd7+ c6 Ra3 Qe8 Ra6 Qg6 Ra3 Q8h7 Rd8 g8R Bh8 Qhh6 Ra6 Ng7 Ra3 Rd3+ Kc2 Qge4 Rb3 Qg2 Rc3 Rd1 Rf3 Ra6 Rf1 Rd3 Bc3 Ba3 Bb2 Rd2+ Kb3 Rc1 a1Q R8a7 Qa2 Rc8 Qb1 Rca8 Qd3+ Rc4 Qdg3 Rc1 Qh2 Rc4 Be6 c7 Bd7+ Rcc6 Ka2 c8R Kb1 Kc5 Kc1 R8c7 Qhf4 Rd3 Qd2 Kb5+ Kd1 Qf3 Ke1 Qg2 Qdf4 Rd2 Qh2
5r1n/4rq2/2B1R3/b1K1N3/N2N1R2/QQnp2pb/N2B1NrN/r1R2BkN w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 d5 h4 g5 c4 a5 b4 a4 f4 g4 h6 a3 h5 a2 c6 e6 h7 g3 h6 Qc7 c5 Qb7 c7 Ra5 b6 Rb5 c6 Rc5 b5 Rc2 Bd2 Qa8 b7 Na6 b8N Bd7 c8B Qb7 c7 Qa7+ b6 Bb5 Nh3 Nc5 b7 Bc6 Nc3 Qa3 Na6 Be8 b8N Qa5 Rc1 a1R Ne4+ Kf7 f6 Kg6 f7 Kf5 Nc6 Rca2 Bd7 Be7 c8N Na4 f8Q+ Bf7 Nhf2 Ra3 Qb3 Bd8 Nab4 Nb2 Nb6 Ne7 Na4 Ng6 Na2 Qc7 Kc5 d4 Be8 Rg8 h8N e5 h7 d3 Rh6 Nd1 Nh1 Kg4 f5 Kf3 f6 Be6 f7 Bh3 Nef2 e4 Qd6 e3 f8R+ Qf7 Qe7 Ba5 Nd4+ Kf4 Bc6 Nc3 Qa7 Qf6 Nf7 Nh8 Ng5 Qf7 Nfe4 Kg4 Ngf3 e2 Re6 e1R Nh2+ Kh4 Nef2 Re4 Nb4 R3a2 Qa8 Rb2 Na2 Re2 Qa3 Rb7 Qb8 Rc7 Qbb3 Re7 Nfg4 Rg2 Ngf2 Qe8 Rff6 Rf8 Rf3 Ng6 h8N Qd7 Nf7 Nh8 Kc4 Qe8 Ne5 Qf7 Rf4+ Bg4 Ne4 Kh3 Kc5 Bf5 Nhf3 Bg4 Nfg5+ Kh2 Nef2 Bh3 Nge4 Qf5 Nf6 Qg6 N6g4+ Kg1 Nh2 Qf7
n1R5/1N4r1/N3n1k1/rQpr4/NB4N1/KpB2Qbb/BQNqN2R/2N2r2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 d4 e5 Kd2 g5 Kc3 c5 Kb2 b5 f4 g4 a4 b4 f6 g3 h6 e4 a6 e3 a5 e2 h7 e1R f5 g2 d6 Bg7 h5 Re4 h6 Bf8 d5 Rg4 d7 Qc7 d8N+ Ke8 f7+ Ke7 a7 Kf6 a6 Rd4 d6 Rf4 d7 Nc6 Qe2 Nb8 Rh2 Qb7 Nc3 Qd5 Na2 Bd6 f8Q+ Kg5 f6 Qc6 f7 Qc7 Nb7 Kf5 d8N Nc6 Qb5 Rb8 a8N Rf2+ Bd2 Qa5 a7 Bc7 Nc1 Nge7 Ne6 Ne5 Nb6 Rf3 a8N Rg8 h8Q Rf4 h7 Rg3 Bc4 Rc3 Nge2 g1R N6d4+ Kg5 Nc2 Nf3 Bb3 Be5 Nc7 Ra8 Ra3 Rg3 Ba2 b3 Ra4 Bf5 Ka3 Bh3 Qhg7+ Kh5 h8B Rd3 Be1 Bd6 Qb2 Rd5 Bd4 Qc3 Ra6 Ng5 Na4 Rff3 Rc6 Ra5 Na6 Ne6 Bh8 Qd4 Bb4 Qd2 Bhc3 Nc8 Rc7 Nb6 Rc8 Qe3 Qg7 Rff5 f8N Na8 Ng6 Rf1 Ne5 Qd2 Qf6 Rg7 Ng4 Bg3 Qf3 Kg6
4N1R1/4R1Bp/B2B1Q1n/N1KpBR1N/7q/1QB1BB1p/b1nrr2b/q2k4 w - - 0 1 illegal: Other
1R2bb1Q/2qRN2K/Q1R3r1/1n2N3/b7/B1QR1bkB/Rb3bN1/2B2n1R w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bb7 d5 Ra5 bxa5 Bc8 Kf2 Ke7 Kf3 c5 Ke4 h5 g4 f6 d4 h4 d6+ Ke6 a6 c4 d7 h3 b6 c3 a7 h2 a8Q a3 d5+ Kf7 Kf5 a2 e4 c2 g6+ Kg7 b7 Qe8 e6 Rh3 d8B Na6 b8R Bb7 e5 Qa4 g5 Qc6 e7 Qc3 e8Q Qc6 e6 Rh7 d6 Qd7 Qe1 Rh4 Qc3 Rh7 Ne2 Rh6 Bh3 Bc6 Nd2 Qc7 e7 Ba4 Ba3 c1B d7 Bb2 Nf4 Qc8 Rb6 Nc7 Qa6 Nb5 Ng2 Qc7 Rad1 a1B Nc4 Bc2+ Rd3 Ba4 Qb3 Bd4 Qc3 Bb2 Rc6 Bg1 Ne5 Bf2 Ra1 h1B Ra2 Kh8 g7+ Kh7 Rd2 Rg6 Rd3 Qc8 Bb6 Qc7 d8R Nh6+ Ke4 Ng8 Be3 Nh6 g8N Ng4 Kf5 Nh2 Bc1 Nf1 R8d6 Kg7 Qb8 Kh7 e8R Kg7 Ne7 Kh7 Nh4 Bf3 Ng2 Kg7 Rd7 Kh7 Ke6 f5+ Kf7 f4 Qd8 Rd6 g6+ Kh6 Kg8 Kh5 g7 Rg6 Kh7 Kg5 Ne3 Kh4 g8R Kg3 Qdc8 Bg4 Red8 f3 Ng2 Bh5 Rh8 Bg4 R7d5 Bd7 R5d4 Be8 R4d7 Ba7 Rcd6 Nh2 Rd2 Bf7 Bf5 Bg7 Rc6 Be3 R2d3 f2 Rde8 f1B Rhf8 Be2 Bh3 Bg4 Rf6 Bh5 Rf1 Be2 Rh1 Bf3 Red8 Bc5 R7d6 Bh6 Rc6 Nf1 R8d7 Ba7 Rh8 Bf2 Qg8 Bc4 Qg7 Bf7 Rb8 Be8 Qh8 Bf8
1Q3RrB/2NnqNR1/1Qb3N1/4BQ1Q/r3Q1Q1/2nBp3/3kq2R/1Kb2b2 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 g4 Kf7 f4 e5 d4 h5 Kd2 c5 Kc2 e4 a6 c4 a7 e3 b6 h4 f6 Kg6 d6 c3 f5+ Kf7 b7 h3 d5 h2 d7 Nc6 b8B Bh6 g6+ Kf8 g5 Bg7 f7 Ke7 f8R Rh7 Ne2 Qb6 d8N Qb5 f6+ Kd7 d6 Qe5 f7 Nh6 Na3 Qf4 Kb1 Be5 g7 Qg3 g8Q Nb4 g6 Qg2 g7 Ba6 Bb2 Rh8 Nf4 Nd5 Bd3 Ng4 Nb5 Qe2 Ng6 Ngf6 Nc7 Bb5 Qh7 Rg8 Qh5 Bd4 Rg1 h1B Ra2 Bg2 Qb3 Bc6 Qb6 Bf1 Ba1 Bc5 Rg4 Ba3 Rc2 Rh8 g8Q Bc1 Qg7 Rg8 Bb2 Qf3 Rh2 Qe2 Rgg2 Ne4 Qgd4 Nc5 Qdg4+ Ne6 Ka1 c2 Bh8 Nc3 Re8 Bd5 f8Q Be4 Nf7 Bc6 Qgg5 Nc5 Qg7 N5e4 Rf8 Nf6 Qf4 Ba3 Qe4 c1Q+ Qb1 Qcc2 Qb6 Qb3 Qef5+ Qe6 Rg1 Ne8 Qgd4 Bc1 Qdg4 Nf6 Qb7 Bb5 Qbe4 Bc6 Rgg2 Bd5 Rg3 Kc6 d7 Kc5 d8Q Nd7 Rgg2 Qe5 Rg1 Bc6 Rgg2 Nd5+ Kb1 Qe7 Ne8 Qe5 Ne7 Qf2 Qe2 N7f6 Rg7 Nd7 Q2g4 Qe2 Ng6 Qe6 Be5 Qe7 Bd4+ Kb4 Be5+ Ka3 Qa5+ Kb3 Nc7 Nc3+ Ka1 Rb8 a8Q Rb4 Qb8 Na4 Bd6 Kc3 Be5+ Kd2 Qab6 Rc4 Kb1 Nc3+ Ka1 Nd5 Ka2 Ra4+ Kb1 Nc3+
1B1Q4/nB1Q2Br/1b6/Rq1N1RpN/n2N2Np/K2N1N2/6Q1/knRn2n1 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 a5 h4 g5 f5 Ra6 f7+ Kd7 h5 Rg6 hxg6 Kd6 f6 Bf5 gxf5 Kd7 d4 Kd6 Kd2 e5 Kc3 h5 Kb3 c5 g7 h4 b6 e4 b7 e3 Bg2 e2 Nc3 e1N Qc2 Nc6 b8N Rh7 Nd7 Qe8 Ne5 Qe6 Ng4 Nge7 g8N Bg7 f8R Rh8 f7 Qd7 f6 Kc7 d6+ Kb6 d5 Qe6 d7 Qf5 d6 Nd3 d8N Qg6 d7 Nf5 Ne6 Ne3 Nf4 Qf5 d8N Rh6 Nde6 a4+ Ka2 a3 b4 c4 b5 Ka5 b6 Kb4 b7 Na7 b8B Bh8 Bb7 Qb5 Qg2 Nc5 Bb2 Rh7 Ncd5+ Ka4 Nd3 c3 Nf3 c2 Nfh2 Bg7 Rhf1 Bh8 Rc8 Bg7 f8Q Nd1 f7 Bd4 Qg7 Be3 f8Q c1N+ Kb1 Kb3 Qd8 Ne2 Qgd7 Bd4 N8f6 Ng1 Nh5 a2+ Kc1 Bf2 Bg7 Bd4 Rc6 Bf2 Ra6 Na4 Ra5 Bb6 Nd4+ Ka3 Rb1 a1N Rf5 Nb3+ Kc2 Ka2 Rc1 Nd2 Nhf3 Nb1 Ra6 Ka1 Ra5 Qc5+ Kb3 Qc6 Rcc5 Nd2+ Ka3 Qb5 Rc1+ Nb1+
8/1BB4R/1RQ1R2Q/N1RnRK1B/1N2bRn1/k1qNp3/1b1p3p/2q3nQ w - - 0 1 legal: proof: d4 h5 f4 c5 dxc5 a5 a4 g5 h4 f5 g4 b5 axb5 Bb7 gxf5 g4 e4 Ra7 e5 Rh7 f6 Rg7 f5 Rg5 hxg5 Bc8 Qe2 Qc7 Qd2 Kd8 Qd1 Ra6 f7 Rf6 exf6 Qb6 Bd3 Kc7 Be2 Kb7 Bc4 Qd8 Bf1 Kc7 Ke2 d5 Ke3 e5 c4 g3 b4 a4 g6 d4+ Ke4 d3 b6+ Kc6 g7 h4 b7 h3 b5+ Kd7 c6+ Kd6 b6 Kc5 c7 Kb4 c5 g2 c6 a3 Nc3 a2 Bf4 d2 Rc1 a1Q Nd5+ Ka3 Rc5 Nh6 g8R Qc3 Be2 Bd7 c8B Qg3 c7 Qg6 Nf3 g1N Nb4 Be6 Ne1 Bd6 f8Q Qg4 f7 Qg7 f6 Bd7 Bh5 Qg5 Rg6 Nc6 b8R Qh4 b7 Nf5 Ned3 Nf3 Qh6 Ne1 f8R Be8 f7 Nfe7 Re6 Nd5 Kf5 e4 Qb1 Bd7 Re8 e3 f8R Be5 Rh2 Nf3 Qh1 Bd4 Rf7 Bf6 Rf2 h2 Rh7 Qe7 Bd6 Ng1 Rf4 Qg7 Re7 Be8 Re5 Kb3 R7e6 Qe1 Ra8 Qh4 b8N Qe1 Bb7 Qc1 c8Q Qc7 Ra6 Bg6+ Kg4 Qc3 Rb6 Be4 Qd7 Qc8 Bc7 Ka3 Qe8 Nd8 N8c6 Nf7 Na5 Bh8 Qg7 Nh6+ Kg5 Ng4 Qc6 Qc1 Qh6 Bg7 Ref5 Bb2 Rfe5 Bg2 Kf5 Qh8 Ree4 Qhc3 R4e5 Be4+
6QN/Br1KQBnN/1qNN1B1k/1br1QrN1/1Rb1R1n1/n4R2/4Nb2/6n1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 Kg7 Kf4 c5 Ke5 h5 f4 a5 g4 c4 b4 c3 d4 a4 f6+ Kh7 f5 e6 b6 h4 d6 a3 f7 h3 d7 c2 f6 h2 d5 a2 d6 Qe8 d8N Ra4 b7 Ne7 d7 Ra3 Kd6 e5 b5 e4 b6 e3 g6+ Kh6 g7 Ra6 g8Q Nbc6 b8N Ra5 b7 Bg7 f8R Ra4 g5+ Kg6 f7 e2 Qe1 Rc4 Nf3 Ne5 Bb2 c1R Nbc6 Kh5 b8B Re4 g6 Bb7 Ba7 Rb4 Nc3 Ng4 Ng5 Rf4 Rb1 Ba6 Nb7 a1N d8N Bd4 Qg7 Rf5 Qe5 Nc2 g7 Bf2 g8Q Na3 Kc7 Kh6 Nd6 Rc2 Ba1 Rc1 Rb4 Bb5 Bg2 Bc4 Bd5 Rc2 Rg1 h1B Rg3 Bg2 Re3 Bf1 Re4 Rc1 Nde6 Qa8 Nh7 Qb8+ Kd7 Qb6 Neg5 Bb5 Qd2 e1N Qe3 Bfc4 Ne2 Nf3 Bd4 Nc8 Qe7 Ng1 Bf6 Rc2 Qf4 Rc3 Qfe5 Rc2 Rd8 Rc1 f8N Rc2 Bf7 Rc3 Nb7 Nd6 Ng6 Ne8 Nd6 Ng7 Rb8 Bd5 Rb3 Rc5 Rf3 Bb3 Rb7 B3c4 Qa8 Rb8 Nh8 Qa5 Rb6 Ba4 Rb4 Qb6 Qb7 Bab5 Qc8 Be1 Qce8 Bf2 Qg8 Rb7+
2KQ2N1/3NN2B/Q1r2rb1/2q1b2k/2N5/1QNnB1qN/rR3Rnr/n4RB1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 g5 Kc4 c5 h4 e5 b4 a5 d4 g4 f4 a4 d6 g3 Kd5 a3 f6 c4 f5 a2 h6 g2 h7 e4 h5 e3 b6 c3 b7 e2 h6 e1N b5 c2 b6 Ra3 d7 Qe7 d8Q Qc7 Rh2 Ra7 Nc3 Nc6 b8Q Qf4 b7 Na5 Nh3 g1R Qbd6 Nf3 b8B Rb7 Be3 c1R Qb3 Re7 Bd3 Rg3 Qa6 Re8 Ba7 Nh4 Rb2 Nc4 Kc6 Rd1 d5 Be6 Kb7 Rg6 d6 Qg3 d7 Na5+ Kc8 Rd2 Rf1 a1Q Bg1 Re2 Bae3 Bd6 Rf2 Qa3 Bb1 Kf8 f7 Nf6 Rf1 Rh2 Be4 Rhg8 h8N Bc7 h7 Kg7 f8R Nh5 Nf7 Nf4 h8N Nd3 Nd6 Qc5 Nc4 Ng2 Nf7 Rf6 Nh6 Bf7 Rff2 Rh8 Ng8 Bg6 Rf1 Rc6 f6+ Kh7 f7 Ree6 Qe8 Rf6 d8N Kg7 Qe7 Rh6 Qd7 Rf2 Qd5 Rcf6 Nc6 Kh7 Nce7 Rc6 Qbb5 Nb3 Qd8 Na1 Qb3 Rff6 Re8 Rh5 f8N+ Kg7 Rbf2 Rhf5 Rb2 Rf2 Nd7 Kh7 Rf8 Kg7 Rbb1 Ra2 Rb2 Bh7 Nf5+ Kg6 Nfe7+ Kh5 Rff2 Bg6 Rf1 Bf7 Bh7 Bg6 Rf7 Rfd6 R7f3 Rf6 R3f2 Be5+
1N6/N3qbr1/1R4nq/R2K3k/qb2Q1nN/1p2Rr1B/r1RQ1RRQ/2B4B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 g5 Ke4 c5 f4 b5 a4 e5 d4 b4 h4 g4 f6 g3 f5 c4 d6 c3 a6 g2 a7 b3 d5 c2 d7 Nh6 a5 Nc6 d6 Nd4 a6 Be7 Kd5 e4 Rh2 e3 Ra5 e2 Nf3 g1Q Na3 e1R Rg2 Bf8 Nb5 Qf2 Qd2 Rb8 a8B Rg8 a7 Qe8 d8R Re3 d7 Ng4 h6 Qg3 h5 Rg6 h7 Qc7 h8Q Bb4 h6 Rc3 h7 Rc4 Nh4 Qe3 Re8 Rb7 d8R Qcf4 Rd6 Qh3 Rb6 Rg7 Re3 Rb8 Bb7 Rc7 a8Q Ne2 Na7 Bd7 Bc6 Rbb7 Qhb8 Qh1 h8R Be8 Rg8 Re7 Qc7 Qh6 Qh2 Rbc7 Bb7 Rc3 Bc6 Re4 Rf2 Qg1 Bh3 Qe1 Rg2 Rf4 Rh8 Rf2 Rg8 Bd7 Rc8 Be8 Bb7 Ng1 Rc4 Nf3 Bc6 Nfe5 Rcc5 Kg8 f7+ Kh7 f8R Ng6 f6 Qf4 f7 Kh6 Qb7 Kh5 Qe7 Rf3 Qe4 Rc4 Rg8 Rc3 f8N Rf2 Nd7 Re2 Bb2 c1Q Rf8 Qh6 Nb8 Qa1 Rf1 Qa4 Bc1 Rf2 Ba8 Rc2 Bb7 Ra2 Rc2 Rf3 Bc6 Qg3 Rff2 Qc7 Bb5 Qe7 Be2 Rf6 Bf3 Rf8 Rg3 Rf6 Bh1 Rf3 Rgg2 Bf7+
2N1Qq2/1QR3bQ/2B1n1Q1/k1r1R3/Nn3Qp1/n1BR1b1r/3K4/B2q1QNb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 e4 c5 d4 Kc7 e6 Kb6 h6 f5 h7 g5 e5 a4 e7 f4 e8N f3 d6 g4 d7 a3 e6 f2+ Kd2 a2 d5 c4 e7 Nc6 d6 Nf6 h5 Nd4 h6 Ra3 Bb2 Ne6 Nc3 Ng7 Rc1 a1N Na4+ Kb7 b6 Ka6 b7 Qc7 d8R Rb3 b8Q Ngh5 b5+ Ka5 d7 Qh2 b6 Ng8 b7 Rb4 Qf4 Bg7 b8Q Ngf6 Qb7 Nc2 Bg2 f1B Nd6 Be2 e8Q Bf3 Qf1 Rb5 Qg6 Rc5 Ba1 Nd5 Re1 Ndb4 Re5 Na3 Bc3 Be2 Bc6 Qf2 Ba1 Qf3 Rh3 Qf2 Rd3 Qf3 Rf8 Bd1 Rf7 c3+ Ke1 c2 Kd2 Rg8 h8Q c1Q+ Ke1 Qb1 Qhh7 Rh8 Kd2 Qb3 Rfe7 Qf7 Bc3 Qf8 Rf7 Qd5 Ba1 Bf3 Rfe7 Qc4 Rf7 Qb5 d8Q+ Qb6 Qdd7 Qbd8 Qe8 Be6 Nc8 Bed5 Rc7 Bh1 Qg8 Bdf3 h7 Qdd6 Qfh6 Nf4 Qg8f7 Nh3 Qff4 Ng5 Bc3 Ne6 Qhh3 Rg8 h8B Qd5 Qh4 Qb3 Ba1 Qd1+ Ke3 Be4 Rh5 Bh6 Bhc3 Bef3 Re5 Bg7 Qhh3 Rh8 Qhh5 Qb1 Kd2 Rh6 Qh7 Qb3 Q5f5 Rh3 Qfg6 Qd1+
1Q4Qb/Nq3Rn1/Rr2Qp2/2RbR1B1/N2RqNn1/K1R1B3/6b1/1Bq3rk w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 g4 c5 e4 a5 d4 h5 Kd2 h4 Kc3 c4 Kb2 c3+ Ka3 a4 b6 c2 g6 h3 g7 h2 d6+ Ke6 d7 Nf6 g8Q Ra6 g5 Rh4 g6 Rh3+ Bd3 Rh7 g7 Rh5 b7 Bc5 d5+ Ke7 d6+ Ke6 Nc3 Nd5 Nh3 Bg1 b5 Qf8 d8R Nc6 b8N Nf6 b6 Bd4 b7 Nd5 Be3 Rh7 Rf1 h1B Qe2 Qe8 d7 Nce7 Nc6 Rb6 b8Q Rh6 Na7 Rg6 Rac1 Nf5 Nf4+ Ke7 e6 Kf6 e7 Kg5 e5 Kh4 e6 Kg3 Ra1 Bb7 Rc8 Be4 d8B Bg2 Rc5 Kh2 Ra2 Qb5 e8R Nf6 e7 Ng4 Rf3 Bd5 Rf8 Qc6 e8R Kh1 Bg5 Qb7 Re4 Bf6 Rd4 Be5 Re8 Bf6 Re5 c1Q+ Rb2 Qe1 Bb1 Qc1 Rf2 Qc2 Rb3 Qe4 Ka2 a3 Na4 Bc6 Rbc3 Bd5+ Ka1 a2 Qc4 Bc6 Qe6 Bd5 Rf3 Bb3 Kb2 Bd5+ Ka3 a1Q+ Ba2 Qd1 Bb1 Qdc2 Qgd8 Qd2 g8R Bh8 Rg7 f6 Rf7 Ng7 Qg8 Rh6 Rf2 Rh3 Re2 Rf3 Re1+ Rf1 Rec1 Qd1 Ra5 Rg1 Ra6 Qdc2 Rc5 Qd2 R1c3 Qc1+
2nN2RN/k2K4/3N3p/nrN1n2r/1b2q1r1/2RB1B2/rR3NbQ/1NB2QQ1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 a5 Ke4 c5 Ke5 Kc7 b4 Kb6 g4 a4 f4 c4 d4 a3 d6 a2 d5 c3 g6 e6 g5 c2 f6 h6 d7 Rh7 f5 Rg7 f7 Ra3 f6 Ka7 d6 Rf3 b6+ Ka8 b7+ Ka7 b5 Rf2 Bd3 Qc7 d8N Bd7 Nh3 Be7 f8N Qb6 f7 Rg2 Nf2 Bc6 d7 Nf6 Rh3 Rg8 g7 Bf3 g6 Bc6 Qg1 Rh8 g8B Bb4 g7 Nd5 Ng6 Ne7 f8Q Rg4 Nf7 Nc8 d8N Bg2 Nd6 Qc6 Rg3 Rh7 Nh8 Qe4+ Kf6 e5 Ke6 Nc6 b8N Na5 b6+ Ka8 b7+ Ka7 Ng6 Rh8 Kd7 Rh7 Na6 Rh8 Ba3 c1R Bd5 Rc5 Bc1 Rb5 Qf5 Rf8 g8R Rf6 Qf4 Rf5 Nc5 Rh5 Rf3 Qe2 Rh3 e4 Nh8 e3 Bf3 Qc2 Qfh2 e2 Qhh1 e1N Qf1 Qe2 Qhg1 Qe4 Rg3 Kb6 b8Q+ Nb7 Qa8 Na5 Qd5 Ka7 Qe5 Nc2 Rh3 Na3 Qeh2 N3c4 Na3 Rf5 Rb1 a1R Rb2 Ra2 Nb1 Rh5 Bc2 Bh1 Bg2 Ba3 Rc3 Bb4 Bf3 Bg2 Bd3 Ne5+
2b1Q1N1/p1n2RBR/1Qn1r1r1/3k1b1B/1RpnqQ2/6K1/1b1R1NBR/5RN1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 f4 e5 Kf2 c5 b4 h5 d4 c4 d6 h4 g6+ Kf6 g5+ Kg7 d5 h3 d7 h2 b6 e4 b7 e3+ Kg3 e2 b5 e1N b6 Bb4 f6+ Kf8 d6 Nd3 g7+ Kf7 f5 Nc5 Nd2 Nc6 b8R Nh6 g8B+ Kf8 f7 Ba3 b7 Na5 g6 Qf6 d8R+ Kg7 f8R Qc3+ Qf3 Nc6 d7 Ne5 Bb2 Qb4 Ra2 Qa5 Ne4 Na6 Nf2 Nf7 f6+ Kh6 g7 Kg6 Qf4 Ng5 f7 Qd5 Bg2 Ne6 Bc3 Bb2 Bh7+ Kh5 g8N Nc6 Bg7 Ned4 Bd3 Nc7 Be2+ Kg6 Bg4 Ba1 Re2 Rh6 Bh5+ Kh7 Rd2 Qe4 Rde8 Re6 d8Q Bc3 Re7 Bb2 Qe8 Bd7 Rd8 Bc8 Rd5 Rb8 Rb5 Ra8 b8Q Rg6+ Bg4 Re6 Rb4 Kg6 Qb6 Rb8 Ngh3 Ra8 Rf1 h1B Ng1 Rb8 Nf6 Rb7 Rh8 Rb8 Rh2 Rb7 Qc5 Rb6 Ng8 Ra6 B2h3 Bf3 Qb6 Be2 Bg2 Bd3 Qd6 Bb1 Bh5+ Kf5 Rd7 Re7 Qf4+ Ke6 f8R Bd3 Rd5 Bb1 Rg5 Bc2 Rg4 Kd5 Rf7 Re6 Rgh4 Bd1 Bg6 Bg4 Rh7 Bf5 Bh5 Nd8 Qb8 Rad6 Qb7+ Nc6 Qb6 Rg6+ Qg5 Rde6 Qg4 Rgf6 Qf4 Rg6+
1k1NN1Rn/2NRQ1N1/BN3p1B/bbR2qN1/2b5/6Qp/1BrQ1K2/1nqr4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 c4 a5 e4 d5 g4 Kd7 b4 Kc7 c6 h5 g6 f6 e6 h4 c5 h3 g5 d4 g7 a4 e5 d3 g6 a3 e7 d2+ Kf2 a2 e6 Ra5 Nf3 Bd7 e8N+ Kc8 c7 Ra6 e7 Ra5 b6 Na6 b5 Rh6 Na3 Ra4 Bb2 Be6 b7+ Kd7 c8N Bg4 b8N+ Ke6 b6 Rh4 c6 Rd4 b7 Kd5 c7 Rh7 Nc6 Nb4 b8B Bd7 Ng5 Nc2 Rc1 a1Q Ba6 Nh6 g8Q+ Nf7 Nb5 Na3 Ng7 Nb1 e8N Bb4 Qe1 d1B Qe7 Bc2 Rhd1 Ba5 Ba7 Rd3 Be3 Bb3 Rc3 Bc4 Rc2 Bg4 Bf4 Qd6 Nd8 Be2 Nb6+ Kc5 Rcc1 Nh8 Rc2 Rd2 Rc3 Rc2 c8Q+ Kb4 Qg4 Kc5 Qg2 Rh4 Bd2 Rd4 Nbc7 Bd3 Qg3 Bf1 Qh7 Be2 Qd7 Qe6 Qh6 Rd6 Qe7 Qf5+ Bf4 Na3 Rdd3 Qc1 Rd1 Nb1 Rd5+ Kb4 Rc5 Rdd2 Rd3 Rd1 Rd7 Bb5 Qh5 Bed3+ Qhe2 Bdc4 Nbd5+ Ka4 Qd2 Bc3 Nb6+ Ka5 Ng7e6 Bb4 g7 Bc3 g8R Bb4 Na4 Bc3 N6g7 Bb4 Nc3 Kb6 Na4+ Ka7 Nb6 Kb8 Nf3 Qd5 Bh6 Ba5 Ng5 Qf5+
Q7/Bq1BqR1p/3q2k1/1NB3b1/6rB/2Kpn1B1/QRQrnBb1/R2N1N2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 c4 e5 g4 d5 f4 a5 b4 a4 b6 e4 b7 e3+ Kc3 a3 c6 a2 c5 e2 b5 e1Q+ Nd2 Qd7 g6+ Kf6 c7 Bd6 g7 Qh4 g5+ Kf7 c6 Qh5 g6+ Kf6 b6 Ba3 Ne2 Qg5 Qc2 Be7 Rh2 Nh6 g8R Ba3 g7 Ra5 Rf8+ Nf7 g8Q Be7 Bh3 Qg6 Nf1 Qg2 Be3 Na6 b8B Rb5 b7 Bd8 Bba7 Qd6 b8B Rb7 Bf2 Bd7 c8N Nc5 c7 Qc6 Nd6 Rb4 Nb5 Qd6 c8Q Bc6 Qb7 Nd3 Qa8 Qe4 Qg2 Nc1 Bg4 Kg7 f6+ Kg6 f5+ Kg5 Bc7 Ne5 f7 Nc4 f6 Ne3 Bh3+ Kh5 Bd7+ Qh4 Qg8 Rg4 Rg2 Qh1 Bcb8 Qe7 Bbg3 Qh2 Bh4 Qb8 Bfg3 Qb7 Rh2 Qd6 Rf2 Be7 Rb8 Bd8 f8B Qe7 f7 d4+ Kb2 d3 Nc3 Bg2 Nd1 Ne2 Bh6 Qd6 f8B Bg5 Rf7 Qe7 Bhg7 Kg6 Kb3 Qee4 Bfc5 Qe7 Qe8 Rg8 Bgd4 Rg7 Qg8 Qd6 Bde5 Qe7 Bf2 Qd6 Beg3 Qe7 Rc1 a1Q Rb1 Qaa6 Ra1 Ng1 Kc3 Qad6 Qd8 Rg8 Qa5 Rf8 Rf3 Rff4 Qaa2 Rb4 Rf7 Rb2 Qcb3 Rd2 Qbc2 Qbc6 Na3 Qce4 Rb2 Qb7 Nb5 Ne2+
1r1b1N1r/2nbR1p1/1Qn5/B1BR3B/QNR2Q2/3q2B1/p2N2BB/k1bq2K1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 b4 f5 e4 c5 d4 a5 h4 a4 h6 c4 e6 Kf6 d6 f4 b6 f3 h5 a3 e7 a2 e8R c3 d7 c2 d5 Na6 d6 Rb8 b5 Qe7 d8Q Ke5 h7 Nf6 b7 Bh3 h6 Bg4 d7 Ng8 b6 Nb4 Nh3 Ra8 b8B+ Ke6 b7 Bh5 e5 Bf7 Qb6+ Nc6 Ba3 c1B Bc5 Ra6 Qa4 Kd5 e6 Qf6 e7 Ra8 Bg2 Qd6 Rd1+ Ke5 Kg1 Nf6 Nf2 Ba3 Nd3+ Kd5 Nb4+ Kc4 Rd3 Rg8 h8Q Bh5 h7 Qf4 Rd5 Qg3 Nd2+ Kc3 Rc1+ Kb2 Rc4 Bg4 Bbd6 Bf5 b8B Ka1 Bdc7 Qg6 Bh2 Bc1 Bbg3 Be6 d8B Bc8 Qba7 Qd3 Ba5 Rb8 Qb6 Bf5 Rc8 Ne8 Rc7 Be6 Rcd7 Nc7 e8B Bd6 Bf7 Rgc8 Qf8 Be7 h8N Bh3 Bh5 f2+ Kh1 Re8 Qf4 Bd8 Ng6 Rh8 Re7 Bd7 Nf8 f1Q+ Bcg1 Qfe2 Bc5 Qg4 Kg1 Qd1+
q1nNQRr1/1pk2b2/1NB5/QKr4r/Bbp3r1/2B5/nN2R1N1/R2N1Q1N w - - 0 1 illegal: No possible last move
3n2RK/NNB2NQ1/3B2r1/2q1R2b/Qn4rn/QNN1p1kp/4p2N/bBR5 w - - 0 1 illegal: Other
4r1k1/4QN1R/2Rp2bn/KQbr1qRn/3NN1q1/2p1NBBQ/N5p1/3BN3 w - - 0 1 illegal: No proof kernel
3Bn2Q/1pqQp3/5p1B/1r1B1KR1/NNR3rB/6B1/q1nRB2b/2kb2QN w - - 0 1 illegal: No proof kernel
k5r1/3Np3/2RQ2Q1/2N1b1R1/1B3B2/r2R3n/1n1bQrBn/Q1BKB1bQ w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nc6 f6 Rb8 f7+ Kd7 axb3 Ra8 b4 Nb8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 f5 g5 b6 Ba6 h3 Bd3 f6 Bf5 gxf5 g4 Bc4 g3 Be2 Qc8 Bf1 Qa6 Nf3 Qc4 Ng1 Qg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 d4 Kc8 b4 Kb7 g5 h5 b5 a5 g6 c5 g7 g2 d6 a4 d7 c4 d8Q c3 d5 c2 d6 h4 d7 h3 Nd2 h2 Qe2 a3 Ngf3 g1N Nb3 a2 Ne5 Nc6 Bg2 Nh6 g8R Ra3 Rg5 Bg7 f8Q Ng4 f7 Bh6 f6 Ra4 Qg7 Rg8 f8Q Ne3 f7 Rh8 Qfe8 Nf1 f8Q Ra6 Qff3 Ra7 Qeg6 Ra3 Qc7+ Ka8 d8B Ra6 b7+ Ka7 b8B+ Ka8 b6 Ne3 Nc5 Nd1 Ned7 Ra3 Qcd6 Nh3 Rb1 a1B Rb3 Bf6 Rd3 Nb2 Bbc7 Rg8 b7+ Ka7 b8B+ Ka8 Ba5 Be5 Rg1 h1R Bb4 Rh2 Q7f6 Bg7 Bda5 Bd4 Rf1 Bg1 Qc3 Be5 Qfe4 Nd1 Qa1 Nb2 Qed5 Be3 Rf6 Bg1 Bf1 Rf2 Qh1 Nd1 Bg2 Nb2 Bf4 c1B Bbc7 Nc4 Kd1 Bd2 Re6 Be1 Bc1 Bd2 Nb7 Nd4 Nbc5+ Nf3 Rf6 Be3 Be1 Bd2 Bb4 Bb2 Qg3 Bd4 Rc6 Nh2 Bf4 B4c3 Qd6 Be5 Qgg4 Ra6 Qge6 Ra3 Qg6 Nb2+
B1K2k2/R1NRq1R1/2R3b1/2B1nn1Q/3rp2Q/4r2N/rQN2nR1/N1nN4 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 c5 Kg3 a5 Kf4 h5 Ke5 h4 b4 c4 d4 c3 f6 h3 f7+ Ke7 f8N a4 b6 a3 d6+ Ke8 d7+ Ke7 b7 c2 b5 a2 d5 h2 b6 Nf6 g8Q Qe8 d8R Qf7 g7 Rh6 g6 Na6 b8N Rh3 b7 Rc3 Ba3+ Nb4 Qh7 c1R g8R Ne8 g7 Rb3 Bg2 Rc4 Nc3 Rc5 Nfd7 Ra6 Qdh5 Rb5 Nc5 Raa5 Nba6 Qf8 b8Q Qf3 Nh3 Qd1 Nc7 Qc2 Rhc1 h1N Nd1 Rb2 Nb3 Qg6 Rc6 Ra4 Qb7 Rb6 d6+ Kf7 d7 Nd6 Qh4 Nf5 Q7h5 Nf2 Bd5 Rba6 Qb6 Rd2 Qbd4 Ra8 Qb2 Rd3 Bf3 Re3+ Be4 Nh6 Kd6 Nbd3 Bc5 e5+ Ne6 Re2 Kc7 Re3 Ned4 Nf5 Nc2 Rd4 Bh1 Ba6 Bg2 Bc4 Bh1 Ra6 Kc8 Be6 Rge8 Bd5 g8R Be4 Ree6 Ra7 Rc7 Ra5 Rec6 Raa4 Ra7 Ra3 Rc1 a1N Rcc7 Ra2 Rg7+ Ke6 Rdg8 Qf6 Rg2 Qe7 R8g7 Ng3 Rcb7 Bg6 Rc7 Nf5 d8N+ Kd5 Nf7 Ke6 Rd7 Ne4 Nd6 Nef2 Qg3 Kf6 Nb5 Ke6 Nc7+ Kf6 Rg8 Kf7 Rg7+ Kf8 Qgh4 Rf3 Rg3 Re3 Ba8 e4 Rg2 Ne5 Nb4 Nc2 Na1 Ne1 Rc3 N1d3 Nbc2 Ng3 Bb4 Nc1 Rc6 Nf5 Bd6 Neg4 Bc5 Ne5
1b6/1r1QBNK1/1R1NR1B1/2B1B1Qp/2rq4/Rn3NNN/2b3k1/r1brB3 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 Kf4 c5 d4 h5 b4 a5 b6 a4 b7 a3 b8R c4 b5 c3 b6 c2 f6 a2 b7 e6 f7 Qe7 Bd2 c1R Bd3 Rc4 Nh3 Nh6 g8N Rh7 g7 Qc7 g6 e5+ Kg5 e4 Kf6 e3 Re1 e2 Ne7 Nf5 g8Q Rca4 g7 Ne3 Bg6 R8a5 Nf5+ Kd7 d6 Kc6 d7 Kd5 d8N Ke4 d5 Kf3 d6 Be6 d7 Rh8 Ng3 Ba3 f8B Rh4 Nf7 Nf1 d8B Bf5 Nd6 Qc1 Bde7 Kg2 Bc3 Ra6 Nd2 Rh7 Nf3 Rc4 Qgd5 Bb1 g8N Nd2 Nh6 Nb3 Qg5 Qe3 Nf7 Bc2 Qdd5 Qd3 Qb5 Bc1 Qd7 Rb6 Ba5 Rh6 Kg7 Rb5 Ra8 Qd1 b8B Rb7 Rb1 a1R Bc3 Qd5 Ra3 Rh8 Be5 Qd4 Ba7 Rh6 Bc5 Rh8 Bd8 Rh6 Ba5 Rh8 Be7 Rd8 Rd1 e1B Rd3 Bc3 Re3 B3b2 Be1 Bc3 Re4 Ba5 Rb2 Bc7 Rb1 Bb8 Rb2 Na5 Rb6 Nb3 Rf4 Rc8 Rf6 Rd8 Re6 Na5 Qb5 Qd1 Nde4 Nb3 Qe8 Rdd4 Qd7 Qd2 Ned6 Qf2 Rb5 Rd1 Rb6 Qd4
Q1NB4/b1n4q/k3r3/6Q1/Kb1Rn2B/Q2qpN1N/NQBq1R2/q4Q1N w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 e4 b3 exf5 a6 f6 Nd7 f5 Nb6 f7+ Kd7 f6 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 h3 a5 Ke2 Ra6 Ke1 Rc6 Qa4 Rc3 Qc2 Rf3 Qd1 Rf5 gxf5 Ba6 Qg4 Bb7 Qd1 Bc8 b6 g5 Be2 g4 Bd3 g3 Bf1 Ba6 Nf3 Be2 Ng1 Bg4 hxg4 Bg7 Bd3 Bh6 Bf1 Bf8 b4 Kc8 d4 Kb7 Kd2 h5 Kc3 e5 Kb3 c5 g5 g2 d6 e4 d5 h4 d7 h3 d6 c4+ Ka4 h2 g6 c3 b5 c2 g7 Na6 Nd2 Qe8 d8B Qe7 d7 Rh6 Ngf3 g1B Bd3 Nb4 Qf1 Rh8 Ra2 Nh6 g8N Qd6 Ne7 Qb8 Nc8 Bfc5 f8Q Nd5 f7 Qa8 f6 Bce3 Qa3 Rg8 f8Q Rg7 f7 Kb8 b7 Ba7 Qfc5 Be3 f8N Rg5 Ne6 Rg2 Neg5 Rg1 Nh3 Nc7 Qg5 Ng4 Bb2 c1Q Bbf6 Bf2 Bc2 e3 Ne4 Qd2 Ng3 Be1 Rb2 Rg2 Rg1 Qd3 Nh1 Nf2 Rb4 Ne4 Rd4 Rg3 Rg2 Bb4 Rf2 Qd2 Qg4 Rg1 Bh4 Rg2 Qh5 Rg6 Qg5 Rb6 Bf6 Re6 d8Q Bac5 Qh8 Qa6 Bd8 Ba7 Qhe5 Qc6 Qd5 Qcc3 Qda2 Qcd3 Q2b2 Na6 Be7 Kc7 b8N Kb7 b6 Nc7 Nc6 Ka6 b7 Qd1 b8Q Qd2 Ng3 h1Q Bd8 Qh2 Qa8 Qh1 Nf4 Qh3 Nh1 Qf5 N6e7 Qh7 Ned5 Qh8 Nc3 Qh7 Kb3 a4+ Ka2 Re7 Qab3 a3 Nh3 Re8 Qa4+ Ba5 Kb3 a2 Qaa3 a1Q Ka4 Bb4 Na2 Re6
RRr1Qq2/Q7/N1nnKN2/1n4q1/1n3p2/B3R3/B2NN1kb/1RQRnN2 w - - 0 1 legal: proof: c4 a5 g4 f5 f4 g5 a4 b5 axb5 e5 fxe5 d5 cxd5 f4 h3 Bf5 gxf5 g4 Nf3 g3 Ng1 Ra6 Qa4 Rg6 Qd1 Rg4 hxg4 Kd7 Nc3 Ke7 Nb1 Ke8 d4 Kf7 Kd2 h5 Kc3 c5 Kc4 a4 e4 g2 b4 h4 b6 h3 b5 h2 f6 Kg6 e6 Kg5 e7 Kh4 e8N Kg3 b7 a3 b6 a2 f7 Nh6 g5 Nc6 b8N Nb4 e5 Na6 e6 Rg8 g6 Kf2 b7 Bg7 f8Q Ng4 e7 Qd6 Ba3 Qf6 d6 Nb4 d5 Qh4 d7 Qg5 d8Q Qh5 d6 Bf6 d7 Nh6 g7 Nf7 Qc7 Nc6 d8R Bh4 Qc1 Bg3 Ne2 g1N Nf6 Qg5 e8R Nf3 Nd2 Nfd4 Nd5 Nb5 Rb1 a1N Na6 Nc2 b8R N2b4 Re3 Rh8 Rg1 h1Q g8N Qhh6 Qa7 Bh2 Qe8 Qf8 Ngf6 Rg8 Bg2 Rh8 Rd1 Nfd6+ Kb3 Rg8 Ra8 Rh8 Rdb8 Rg8 Bf3 Rh8 Bh5 Kg2 Bf7 Rg8 Ndc3 Rh8 Nce4 Rg8 Nf1 c4+ Kb2 c3+ Kb3 c2 Ned2 Nf5 Kc4 Rh8 Qb2 c1N Qc2 Ncd3 Qc1 Ne1 Be6 Nbd3 Kd5 Rg8 Bf7 Nfd6+ Ke6 Rh8 Kd7 Ndb4 Ba2 Rh7+ Ke6 Rc7 Qd4 Rc8 Qb6 Nf7 Qa7 Nfd6
1B2KN1R/Q2B1pQn/1Q5p/4Nr1Q/1Q1r3b/1qR4n/n2N1N1k/1Nb1R3 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b6 a5 b3 g5 hxg5 a4 Rh5 a3 Rh2 Bd7 Rh1 Ba4 bxa4 Qd6 Qb3 Qe7 Qd1 Qd8 Kf2 Kd7 Kg3 c5 Kh4 c4 e4 a2 g4 c3 d4 c2 d6 Ke6 d7 Qc8 d8Q Bd6 a5 Nd7 a6 Nb8 a7 Nc6 g6 Be7+ g5 Qa6 g7 Nb8 b7 Ba3 g6 Nd7 Kg5 Nb6 b8N Nd7 Nc6 Qa5 Bf4 c1N Qb6 Qb4 Bb5 Bb2 Nh3 Qa5 Re1 Qa4 Qh5 Qc4 Nf2 Re8 a8Q Qa4 Qaa7 Ne7 g8R Nd5 g7 Rd8 Re3 Qc2 Rc3 N7f6 Ba4 Nc7 d5+ Kd7 e6+ Kc8 d6 Ba3 e7 Kd7 e8N Ke6 d7 Na8 e5 Qd2 Nd6 Bb2 Nc4 Qd3 Ncd2 Nc7 Bb5 Kd5 e6 Ba3 e7 Ne6+ Kh6+ Ng5 Ne5 Nh3 e8Q Qc4 Rf8 Qb3 g8Q Bb2 Kg7 h6 Qaa5 Nh7 Qe7 Rc8 d8N Rc5 Qea7 Ba3 Rc2 Kd4 Bg3 Ke3 Ne6 Bb2 Rd8 Ba3 Nf8 Bb2 Bh4 Kf4 Bd7 Rb5 Be7 Kg3 Rc3+ Kh2 Bd6 Ba3 Bc7 Be7 Bb8 Bh4 Qb4 Rd5 Na3 Rd4 Rb1 a1B Re8 Na2 Re1 Bb2 Nab1 Bc1 Rd8 N7g5 Kf6 Rd5 Ke7 Nh7+ Ke8 Rd4 Qgg6 Rg8 Qgf6 Rg5 Qg7 Rf5 Nfg6 Rg5 Ke7 Qa4 Rh8 Rf5+ Ke8 Qd1 Nf8 Qb3
1bb1B3/4Rp1q/kb3nN1/5b2/2RQNBNp/BK1qB3/R1Q5/1B2NnN1 w - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 d4 b5 axb5 a6 dxc5 h4 g3 Qc7 g4 Qd8 h3 g5 Qd5 a5 Qd6 Rh5 gxh5 g4 Qd3 g3 Qd1 Ra6 Nd2 Rg6 Nb1 Rg4 hxg4 Qe7 Nh3 Qg5 Ng1 Qd8 Kd2 d5 Kc3 Kd7 e4 Kc7 b4 Kb7 c6+ Ka7 b6+ Ka8 h6 d4+ Kb3 d3 c4 g2 b5 d2 c7 Kb7 g5 Bb4 e6 Ba3 c5 Na6 c6+ Ka8 h7 Nb4 h8N Bb7 c8N Qf6 e7 Qd6 e8B Nd5 g6 Qd7 e5 Qe6 c7 Nge7 g7 Ba6 g8N Kb7 Bd3 Qd6 e6 Qc5 Ng6 Nf5 e7 Nf6 Nh6 Nh5 Ra2 Nd6 Ng4 Nc4 Nd6+ Ka8 b7+ Ka7 c8Q Qe3 Ne4 Bd6 Na3 Bb8 Nc2 Nf6 Ba3 Qf3 Rh3 Ne3 Ne1 Nf1 Qcc2 Kb6 Qa1 d1B Qe5 Qe3 Rf3 Qh6 Rf4 Qh7 Qb2 Bc7 b8B Bc8 Qd4+ Kb7 b6 a4+ Kc4 Ka6 Ba7 Bb8 b7 Bf5 Qd2 Bc8 Bb1 Bb3+ Kc3 Bbe6 Qc2 Bf5 Bb6 Bd6 b8B Be5 Bc1 a3 Kb3 Bc7 Bc5 Bb6 Be3 Ba7 Rb2 a2 Ba3 a1Q Ra2 Bb6 Rf2 Ba7 Bbf4 Bb8 Rd2 Qh6 Rd3 Qh7 Rc3 Qb2+ Kc4 Qc1 Kb3 Qd1 Rc4 Qf3 Bd7 Qe2 e8R Qd2 Re7 Qe2 Ngf3 g1B Be8 Qd3+ Kb4 Bh2 Ng1 Bc7 Ka4 Bb6 Kb4 Qd2+ Kb3 Qd1 Bg5 Bb8 Bgf4 Qd3+
B5N1/2Nk1pqR/1pR2R1q/3pR3/2r1NQ1b/N1p1nrRK/B1Q2B2/2N5 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 a5 g4 a4 gxh5 a3 bxa3 Qf6 a4 Qe7 a5 Qd8 d4 b6 c5 Na6 c6 Bb7 cxb7 c5 Qa4 c4 Qd1 Nc5 dxc5 Rh6 Kf2 Rh7 Ke1 Rh8 Kf2 d5 Kg3 g5 b8Q g4 h4 c3 e4 Kd7 a4 Ke8 h6 Ne7 a6 Nc6 h5 Qc8 a7 Nd4 e6 Rg8 e5 Bg7 a5 Nc2 a6 Ne1 h7 Bf8 h8R Ke7 c6 Qc7 h6 Nf3 h7 Ne1 Rh3 Qc8 c7 Nc2 Na3 Ke8 e7 Nd4 Qc2 Rg6 Bc4 Ne6 Ba2 Qd8 c8N Rg7 Be3 Rg6 Bf2 Nc5 Ne2 Kd7 e8N Rc6 Ncd6 Bg7 e6+ Ke7 Nf6 Nd7 Nc1 Rc5 Ng8+ Kf8 Ne4 Ke8 e7 Rc4 Qf4 Bf6 Rb1 Rb8 a8N Ne5 a7 Kd7 Nc7 Qf8 e8R Qh6 a8B Bh4+ Kg2 Rc8 Rg3 Ra4 Kh2 Nc4 Re5 Ne3 Rb5 Rc4 Rc5 Re8 Rc6 Re6 Rf3 g3+ Kh3 g2 Rg3 g1Q Rg7 Rg6 Rh5 Rg4 Re5 Rg2 Rgg6 Nf5 Rgf6 Ng3 Ne7 Nf1 Rg8 Rg7 h8R Ne3 Rh7 Rg4 Rgg6 Rg5 Ng8 Rf5 Qf3 Qgg5 Qg4 Qg7 Qf3 Q5h6 Rg3 Rf4 Qg4+ Rf5 Qg5 Rf3 Qf5+ Kd8 Qf4 Kd7
1N1BqQ1N/1RN1RrbQ/NK2nQ2/4RB1b/NnR3q1/1Rbn2r1/8/3k1q2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 h4 g5 d4+ Ke4 f4 e5+ d6 a5 b4 c6 f6 a4 d5 g4 b6 g3 f7 g2 f5 a3 f6 a2 b7 Bh3 b5 Ra4 b6 Ra7 h6 Be7 f8Q Bg4 f7 Bd7 h5 Bf5 h7 Bg6 h6 Ra3 Qd4+ Kf5 Bg5 e4 Nf3 Kg4 Nc3 g1N Rh5 Rb3 Rb1 a1B Na4 Ne2 Qf6 e3 Nd4 Qe8 Nb5 Nd4 Bd3 e2 Nc7 e1Q Bf5+ Kf3 Bh4 Bd8 d7 Ke2 d6 Rg3 Rb3 Qg1 Rg5 Be7 d8R Bc3 Rd7 Kd1 Q8g7 Bh5 f8Q Bd8 Re7 Qf1 d7 Na6+ Kd6 c5 b8N c4 b7 Nb4 Kc5 Qf4 Nba6 Qg4 b8N Nd3+ Kb6 Ne6 Qgg6 Be1 Qgg7 c3 Qgf7 c2 Q7g7 Qf3 Rg4 c1Q Rc4 Bc3 Qgg6 Nd4 Re5 Be7 d8R Qg4 Rd7 Ne6 Qgg7 Ba3 Bg5 Ne7 Qgg8 Ng6 Re7 Ngf4 Qgg6 Rg8 h8R Bab2 h7 Rg7 Rg8 Rf7 h8N Nb4 Qh7 Qb1 Rg7 Nfd3 Qfg6 Bd4+ Rec5 Bg1 Rd7 Ke1 Nd5 Bgd4 Bd8 Bbc3 Rb7 Rf6 Rge7 Rf7 Ndc7 Bg7 Qf6 Ke2 Rb5 Qf1 Re5+ Kd1
1bRB1N2/1nrn2BR/QN6/1R1q2b1/BRNb3B/2K5/q3Rr1Q/B1kb2b1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 Kd6 d4 c5 Kd2 a5 f4 e5 h6 g5 f6 a4 h7 c4 h5 a3 f5 a2 b6 e4 b5 g4 h6 e3+ Kc3 e2 b7 e1B+ Nd2 g3 b6 g2 f7 Be6 f6 Qe7 Nf3 g1Q Qa4 Bg7 f8R Bd7 f7 Be5 Bb2 Qgg5 Rc8 Bf2 f8N Bc6 Re1 a1B Re2 Be1 Qa6 Nd7 b8R Qf7 b7 Ra7 Rh4 B5g3 Ne5 Nc5 Ned7 Bef2 Nb6 Ba4 Bh3 Bb3 Bd7 Nf6 Ba4 Bg1 Rf4 Rg8 h8B Bd1 h7 Nfd7 Bg7 Qe5 h8R Qee6 Kb4 c3 Rh7 c2 Kc3 c1B Rfe4 Qff5 Re5 Qb1 Rg5 Qa2 Ndc4+ Ke7 Rgh5 Bg5 d6+ Kf7 d5 B3h2 Bh6+ Kf6 Bg7+ Kf5 Rh4 Rh8 R4h5 Kf4 Rh4+ Kf3 Rg4 Ne5 d7 Qd6 d8B Ned7 Rd4 Qe5 d6 Qd5 Ra8 Bhf4 b8Q Nb7 Rc5 Rg8 Rb5 Bfh2 Qc7 Rh8 Rc8 Bg3 Rh1 Rh2 Bdf6 Rf2 Rh7 Nbc5 Qb8 Rc7 Rg4 Nb7 Rge4 Ne5 d7 B3f4 d8B Nd7 Kb4 Bfh2 Bbe5 Bd4 Bg3 Kg2 Bh4 Kf1 Rf4 Be3 Ba1 Bd4 Rb2 Ke1 Rg4 Bb3 Re2+ Kd1 Rge4 Kc1 Rf4 Be3 Kc3 Bd1 Rd4 Rc6 Qg3 Rc5 Qh3 Bb8 Qh2 Rc6 Rdd2 Rc5 Rdb2 Rc7 R2b4 Bd4+
n2n3B/3n3k/1b1NBnRr/Q1NQR1R1/Q7/1N2qqKN/2rN2Q1/1b1b1Q2 w - - 0 1 illegal: No possible last move
n1N5/1QQ1n1nr/4bB2/R1B1N3/4BkNN/1B2R1bK/b1r1bB2/1qN1q2R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 f5 e4 h5 b4 c5 d4 a5 d6 Ke6 d5+ Kd7 b6 h4+ Kh3 f4 g4 c4 e6+ Ke8 e5 c3 b5 c2 e7 Kf7 e8N Kg6 e6 f3 b7 f2 b6 a4 e7 a3 d7 a2 d6 Rh7 Qf3 Nf6 Ne2 Rg7 Be3 c1N Bg2 f1B Nd2 Rg8 Bc5 Nh7 Nf6 Rh8 e8R Nb3 Re3 Ra4 Nc1 Qc7 d8Q Ba6 d7 Nc6 b8B Ne7 b7 Qa5 Qc7 Nd4 d8B Be6 Bba7 Be2 b8N Nb5 Nbd7 Rc4 Qfb7 Rc2 Nf3 Qe1 Bab6 Bh6 Ba7 Nf8 Nde5+ Kg7 g6 Rh7 Bab6 Bf4 Ba7 Kh6 g7 Bg3 g8B Bc8 Bb3 Ne6 Bab6 Ng7 Ba7 Be6 Bab6 Nc3 Ba7 Ncd5 Bab6 Ngf5 Ba7 Nb6 g5+ Kg7 g6 Kh6 g7 Na8 Nfg4+ Kh5 g8N Ng7 Ng1 Kg5 Be4 Kf4 Bab6 Rc3 Ngf3 Rc2 Rb1 a1Q Ba7 Qac3 Ra1 Qb2 Ra5 Qb1 Nh6 Ng6 Bf6 Ne7 Nhf7 Bf2 Kh2 h3 Nd6 Bh4 Nc8 Bf2 Rf1 Bh4 Rg1 Bf2 Nh4 Bg3+ Kh1 h2 Kg2 h1B+ Kh3 Bhf3 Rh1 B2c4 Rd3 Be2 Bf2 Bf7 Bac5 Bce6 Re3 Bg8 Ba4 Ba2 Bb3 Be6
bkN2B1K/1qqr1nQ1/2R5/n4qn1/Q3r3/NR1N1N1R/R1B1N1p1/2b1R2B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 g5 Ke4 a5 Kf5 c5 e4 Kc7+ e6 g4 h4 c4 b4 a4 d4 g3 d6+ Kb7 d5 c3 b6 f6 Kg6 f5 e7 c2 e8N f4 e5 a3 h6 a2 e6 f3 b5 f2 e7 Ra5 h5 Bh3 d7 Bg4 d6 Ra3 h7 Be2 h6 Rc3 Bg2+ Bf3 Ba3 c1Q Ne2 f1Q Qa4 Qf2 Re1 Qc8 d8R Qc4 d7 Qc7 Rc8 Rc4 Bh1 Qcc5 Rc6 Na6 d8N+ Kb8 b7 g2 Nd6 Nc7 e8B Rc2 Nc8 Bd5 Nf7 Qfe3 Ne5 Na8 Nf3 Bd6 Kg7 Qa7 Bg6 Rd2 Bc2 Bf4 Bf8 Qe4 Na3 Qc5 Rb1 a1N Rb2 Nc7 Ra2 Nf6 Bd6 Re8 h8Q Qb1 h7 Ng8 Bf8 Nh6 Qg8 Qa7 h8R Nf7 Rh3 Nb3 Qh8 Qc4 Kh7 Re6 Qg7 Re4 Kg8 Ne6 Kh7 Nfg5+ Kh8 Nf7+ Kg8 Qac5 Rd6 Kc7 b8N Bc6 Nd7 Na5 Nde5 Ba8 b6+ Kb7 Kh7 Ng5+ Kg8 Rd5 Nd3 Bc1 Rf6 Rd7 Re6 Nd8 Kh8 Qf5 Rf6 Qc7 Rc6 Kb8 b7 Qbb6 Ne7 Ka7 b8R Qa6 Rb1 Qab7 Nc8+ Kb8 Rb3 Ndf7+
3K1N2/B2nqr2/BN5R/kb1R3q/1b1NnB1B/p1r1Q2Q/2N1NRr1/6Bn w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Kc4 Kc7 d4 Kb6 b4 e5 f4 a5 h4 g5 d6 e4 Kd5 g4 d7 c4 Ke6 e3 d5 a4 d6 g3 f6 e2 f7 e1Q+ Qe2 g2 f5 c3 f6 c2 h6 Ra7 h5 Be7 f8N Nc6 f7 Qg3 h7 Bf6 h6 Qf3 Qe3+ Bd4 Ra2 Ra6 Na3 Nge7 Ne2 Rg8 h8Q g1N h7 Qf4 Rh6 Kb7 b6 Na7 b5 Ka8 b7+ Kb8 Bd2 c1R Nc2 a3 Be1 Bg7 Bh4 Bb2 Qhc3 Nf5 h8B Ra4 Bd4 Ng3 Qcd3 Qa5 Ke7 Nh1 d8N Rg2 d7 Kc7 Nc6 Bc3 d8R Nh3 Rd5 Ng5 Nd7 Ne4 Nb6 Bd7 f8N Bb4+ Bc5 Qg4 N6d4 Qh5 b8B+ Kb7 Rb2 Nc8+ Kd8 Qa7 Bf4 Ra6 Qh3 Be8 Qde3 Bd7 Na8 Rf6 b6 Ka6 b7 Ka5 b8B Bb5 Nb6 Qg7 Ba7 Rf7 Bf2 Qge5 Be7 Qf6 Bg1 Qg7 Bh4 Qge5 Na4 Nb6 Ra2 Nd7 Nb6 Qg7 Nc3 Qg8 Na1 Qgg6 Re2 Qd6 Rf2 Qc5 Bd3 Ba4 Nce2 Rc3 Ba6 Bb5 Nac2 Qe7+
Q1r1kBK1/r4N2/4b3/2RnN2B/RpRbrR2/N1NR3b/1B1qQN2/q5n1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 e5 Ke3 h5 Ke4 c5 g4 b5 a4 b4 d4 h4 f4 h3 f6 c4 g6 h2 g5 c3 a6 c2 f5 Rh7 f7+ Ke7 a5 Bd7 f6+ Kd6 g7 Qe7 a7 Qe6 a6 Nc6 g6 Nh6 g8R Rb8 a8N Qh3 g7 Re8 a7 Qg3 Ra4 Qa3 Nc3 Bh3 Nb6 Be7 f8N Qb3 a8Q Qa2 f7 Kc7 Bb2 c1R Be2 Ng4 Kf5 e4 Kg6 e3 Nfd7 Qa1 f8B Bh4 Kf7 Nf2 Nc4 Bg5 Bh5 e2 Nde5 e1Q Qe2 Qb1 Na3 Rd1 d6+ Kb6 d5 Rc8 d7 Kc7 d8N Ne7 Rh8 Qd2 d6+ Kb6 d7 Kc7 Rg8 Nd5 Rh8 Qa2 Kg8 Qa1 Ndf7 Re1 d8R Be3 Rd6 Be6 Nh3 Bd4 Rf1 h1B Rd8 Bg2 Rd6 Nd3 Rf4 Nc1 Nf2 Bgh3 Rb6 Rg1 Rb5 Rg4 Rc5+ Kb6 Nc6 Kc7 Rc4 Kd7 Ne5+ Ke8 Rc5 Rh6 Rc4 Rf6 Rh6 Rf5 Rg6 Rh4 Rg3 Rg5 Rd3 Rg3 Rff3 Re4 Rf4 Rge3 Kh7 Rg3 g8R Rf3 Rg5 Rg3 Qf1 Ne2 Kg8 Ng1 Qe2 Rf3 Rfg4 Rf6 Rf4 Rh6 Ng6 Rh7 Re5 Nb6 Rec5 Nd5 Ne5 Bd7 Nh8+ Rf7 Neg6 Rfe7 Nf7 Bde6 Ne5 Ra7
BRQ2Q2/1R1bB1p1/1n2b2R/nKN4R/1bN1rR1B/rQ1Q1q2/7k/rQ4q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 f5 Kd3 c5 Kc4 a5 b4 a4 h4 a3 e4 a2 h6 f4 e6 Kd6 h5 f3 e7 f2 e8Q Ne7 h7 Be6 e5+ Kc7 h6 Rg8 h8Q Na6 b6+ Kb8 h7 Bd7 d6 Nc7 b5 Bg4 b7 Bf5 d5 Nc8 e6 Qd7 e7 Bg6 Rh5 Ne6 Nd2 Ra6 Rb1 a1Q Ba3 Ra7 Nb3 Nf4 Bg2 Qf5 d7 Kc7 d8B+ Kd6 b8R Ke5 d6 Nd5 b6 Kf4 b7 Kg3 d7 Ra4+ Kb5 c4 Nc5 f1B Nf3 Bf7 Qb3 Nb4 Nd2+ c3+ Nc4 Be6 Qg6+ Qg4 e8R Nb6 Qd3+ Qf3 Bh4+ Kh2 d8Q c2 Qc8 c1R Rh6 Be7 Rf8 Nc6 Rf4 Re8 Qf8 Rc3 Bh1 Bfh3 h8R Bd7 Rh5 Bhe6 R8h6 Rc1 Bb4 Ra3 Qb2+ Rc2 Na6 Na4 Ra8 Qe4 b8Q Nd8+ Ka5 Bf5 Qc1 Rca2 Bg2 Qe2 Bd5 Qf3 Ra7 Qd4 Ba8 Qg1 Rb3 Bc5 Qcb1 Ra1 Qb6 Re4 Rc7 Be3 Bbe7 Bfe6 Nc5 Bd2+ Qb4 Be1 Qbc3 Bd2 Rb8 Nc6+ Kb5 Nb6 Qcb3 Bb4 Rcb7 Na5+
1B4nk/1Q3Q1r/1bB1BrRq/R1B5/N1K2nR1/1RB2np1/2Q1n1n1/R1Nb4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Ra3 f5 e4 Kf7 Ke2 c5 Kd3 a5 h4 g5 b4 Kg7 h6+ Kh7 b6 g4 h5 a4 b7 g3 d6 f4 e6 f3 e5 f2 d7 Nf6 e7 Qc7 e8B Be7 d8R Rf8 b5 Rg8 b6 Nfd7 e6 Nf6 Nc3 Rh8 Bh3 f1N Rd4 Qc6 Nge2 Bd8 e7 Qd6 Rb3 Bc7 Ba3 Kg8 h7+ Kg7 Bf5 Nfd7 h6+ Kf6 Bh3 Na6 b8Q Qe6 b7 Nh2 Rd5 Rf8 h8R Bb6 h7 Ra7 Rg8 Nc7 h8R Qc6 Rh4 Ne6 Bb2 a3 Na4+ Ne5+ Kc3 c4 d4 a2 Ra5 a1N d5 Ng6 d6 Nc2 d7 Ne1 d8B Nef4 Qb1 Qe6 Bc6 Neg2 e8Q+ Ne7 Bc7 Rf7 Bd6 Bd7 Rgg5 Ng8 Bc5 Bc8 Kb4+ c3 Qd3 Qd6 Kc4 Bg4 Ra1 Qf8 Qa8 Qh6 b8B Rf8 Qd1 Rh7 Qb7 Bf3 Be6 Rff7 Rd5 Kg7 Rg5+ Kh8 Rhg4 Rf6 Rg6 c2 Qef7 c1N B2e5 Nfd3 Qc2 Ndf4 Nd4 Bd1 Ne2 Nf3 Bed4 Na2 Nc1 Nc3 Bde5 Nce2 Bb2 Nh2 Bc3 Nf3
B7/R1N3r1/n3Rq2/Q2Nbrnp/1N3n2/1NBbB3/BRK3NQ/2Br1kr1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 Kd2 c5 g4 h5 g6 e5 b6 c4 f6 a4 f7 a3 f5 c3+ Kc2 e4 g7 a2 b5 e3 g5 e2 b7 e1R f6 Re2+ Nd2 Bg4 g6 Qc8 b6 Ra5 Nf3 Nd7 b8N Nc5 b7 Na6 Ne1 Re7 Nb3 Qe6 Nc6 Qe2+ Qd2 Qh2 b8R Ra7 Bg2 Qe5 Nb4 Nh6 g8B Qe2 g7 Be7 f8B Qf2 f7 Kd7 d6 Ke6 d7 Kf5 d8Q Ra4 d5 Ke5 d6 Ra5 d7 Be2 Ba8 Bd6 Ng2 Qf6 Re1 Kf5 Qb6 Kg4 d8N Kg3 Ne6 Rf5 Qa5 Kf2 Nc7 Be5 Bd6 Rh7 f8B Nf7 Rb5 Ng5 Bc5+ Kg3 Be3 Bd3+ Kd1 Kh3 Bf7 Kg3 g8N Rg7 Ne7 Kh2 Qb2 c2+ Kd2 Rb7 Ned5 Rb8 Bfc5 Rbg8 Bcd4 Kg3 Bc3 Rd8 Rb1 a1R Rb7 Kf3 Ra7 Rd7 Bf4 Kf2 Re4 Kf1 Be3 Bf4 Re6 Be5 Qba2 Rd6 Ba3+ c1N Rb2 Ne2 Bg8 Bb5 Kc2 Nf4 Qb1+ Ke2 Qh1 Rg1 Qh2 Rdd7 Rb1 Rd6 Bac1 Kf1 Rb2 Bd3+ Kd1 Qd8 Nb6 Re7 Rg6 Nh7 Nd4 Bb1 Ba2 Rg7 Re6 Ng5 Kd2 Qf6 Kd1 Bd3 Nb3 Be2+ Kc2 Rd1 N6d5 Bd3+
1rk1b3/RnN2QQB/2rb1B1r/2pb2B1/1B2RKNQ/6Q1/2n1R1B1/2r1Q1q1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 e5 g4 a5 b4 h5 d4 c6 b6 e4+ Kf4 e3 d6 a4 d5 a3 f6 e2 b7 e1R g6 a2 b5 h4 g5 h3 f7 h2 g7 Rh6 g6 Qe7 b6 Re5 Nf3 Qe6 Bg2 Rh3 Re1 h1B Nc3 Ra4+ Re4 Ne7 g8B Rd4 g7 Rg5 Nh2 Rh4+ Ng4 Rh7 Qe1 Rd3 Nb5 Rhh5 Bh7 Qg6 g8Q Rd1 Nc7 Rd4 Qg7 Na6 b8Q Nc5 b7 Kd8 d7 Ng8 f3 Be7 f8B Nh6 Bb2 Ra4 Bf6 Ra8 Qa7 Nf7 b8Q Nb7 Qaf2 Rh6 Qh4 Re5 Re2 Re6 Bg5 Bf6 Bb4 c5 Re4 Nfd6 Qf7 Nc4 Qg7 Qf7 Re2 Ke7 d8B+ Kd7 d6 Na3 Be7 Bc3+ Bef6 Nc2 Re4 Qe7 Qf7 Kd8 d7 Rc6 Rb1 a1R Rb2 Nd4 Rbe2 Rc1 Qhg3 Nb3 Qa7 Na1 Qg7 Bd4 Qa2 Bg1 Qaf7 Bh2 Ke3 Nd6 f4 Rb8 f5 Nb7 Kf4 Nc2 Re6 Bg1 Nb5 Bd4 Qfg6 Rh2 Q6h6 Ba1 Bb2 Na5 f6 Rd6 f7 Rh3 Bf1 Bd5 Bg2 Rc6 Bbf6 Rh1 Nd4 Kc7 d8R Bd7 f8Q Be8 Rd7+ Kc8 Ra7 Nb7 Nb5 Bd4 Nc7 Be5+ Kf5 Bf4 Qff7 Bd6 R6e5 Rh4 Kf4 Rh2 Qhh3 Qe6 Qgf2 Rh1 Qhe3 Rh6 Qh4 Ba2 Q3g3 Qd5 Qg1 Qd1 Q1f2 Qg1 Qe1 Be7 Re6 Bd5 R6e4 Bd6+
QB1q3N/rnB1NB2/NR4p1/N1bbRb1B/kB3b2/4R3/1r1n3Q/r1N2K2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 d4 c5 b4 f5 e4 a5 e6+ Kd6 h6 c4 h7 c3 b6 a4 b7 c2 b5 a3 e5+ Kc7 d6+ Kb6 d7 Ka5 h5 a2 d5 f4 e7 g6 e8B f3 b6 Kb4 e6 Ra4 d6 Bh6 e7 Ra8 Na3 Nf6 Qd2+ Kb3 Rb1+ Ka4 Qh2 a1B Nc4 Bc3+ Bd2 Bb2 Na5 Nd5 Bb4 Nf4 Be2 f2+ Kf1 Nd3 Bf7 Qc7 e8R Bf6 d8B Ne1 d7 c1R Re5 Be3 h6 Be7 Bh5 Bd2 Ne2 Rc2 Nc1 Nc6 b8N Rb2 b7 Ra7 Na6 Nf3 b8B Bc5 Re3 Qb6 Bdc7 Nd8 Rg1 Re8 h8Q Nb7 d8N Bf5 h7 Rg8 Re5 Bf4 Ndc6 Re8 Ne7 Nd2+ Ke2 Rd8 Rg3 f1B+ Ke1 Rf8 Rge3 Bg2 Qg8 Rd8 h8N Rd3 Qd8 Ra3 Qd5 Ra1 Qe4 Nd8 Qa8 Nb7 Kf2 Qd6 Kg1 Bd5 Kf2 Nf3+ Kf1 Qd8 Bc3 Rc2 Rb6 Rb2 Bb4 Nd2+
4k3/N2r1b1N/prB3B1/4KN1N/b3qBQn/2n3RB/NRB3Q1/3rbRr1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 c5 Kg3 f5 Kf4 h5 b4 h4 e4 c4 g4 a6 d4 h3 g6 c3 g5 c2 g7 h2 e6 Ra7 e7 Ra8 d6 Kf7 e8B+ Ke6 d7 Ke7 e5 Rh4+ Qg4 Nh6 g8B Bg7 e6 Rh5 d5 Nf7 g6 Bb2 g7 Ne5 b6 Nc4 b7 Na3 b5 Nc4 d6+ Kf6 e7 Ba3 b6 Rh6 Nc3 Nd2 Nf3 Ne4 Rg1 h1R Nd4 R1h5 Rg3 Ng5 Bh7 Rh4 g8Q Nc6 b8R Ne4 b7 Rh1 Bh3 Ne5 Beg6 Bb4 e8B Rg1 Na2 Qe7 d8N Ra7 d7 Nf3 N8e6 Be1 d8N Nc3 Bc6 Nh4 Nf7 Bd7 Ng7 Qb4 Nh5+ Ke7 Bd2 c1R Ng5 Rd1 Ke5 f4 Bc1 f3 Bf4 f2 Bc2 f1B Bhg6 Rd2 Nh7 Bc4 Qd5 Bb3 Qg2 Rd1 Rb1 Bd5 Rf8 Bf7 b8N Bde8 Rb2 Rd7 Nf5+ Kd8 Bf3 Bb3 Rf6 Bef7 Nc6+ Ke8 Na7 Ba4 Bc6 Qc4 Rd6 Qb4 Rd2 Qc4 Rf2 Qd3 Rf1 Qe2+ Ne3 Qc4 Bgd3 Rd6 Bg6 Qb4 Nf5 Rf6 Bb7 Rb6 Bc6 Qe4+
1R2R1b1/3Q1q1r/R2NB1QK/4Qq1b/1bp1bB2/RnRN2N1/3r4/2Nk1n1N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kf4 c5 b4 f5 d4 h5 e4 h4 g4 a4 e6+ Kd6 g6 a3 b6 c4 g7 h3 b5 a2 g5 h2 b7 Nd7 b8R Rh6 g6 Ra4 b6 Ra8 e7 Qe8 Kg5 f4 b7 f3 e5+ Kc7 e6 Kd6 Ne2 f2 Bf4+ Ne5 Nd2 Qd8 Bh3 f1B Nb3 Rh4 Ng3 Be2 Nc1 Nf6 e8R Bd7 g8N Qa5 e7 Rh8 g7 Qa7 Be6 Nh7+ Kh6 Bh5 Nf6 Rg8 Ng4 Nf6 Nf2 Ne4 Qc2 Nc5 Qg6 Nb3 Re1 h1B Re3 Bg2 Rc3 Qc5 Nfh1 Ra6 Ra8 Be4 b8R Rc6 Ra6 Qa5 Rb1 a1Q Qf6 Qb2 Ra1 Qf2 Ra3 Rb6 Bd2 Qf5 Bf4 Qc5 Qg5 Qf7 Qf5 Kc7 d6+ Kc6 d5+ Kb5 Qf6 Nf3 Qe5 Bc8 d7 Kb4 d8N Nh2 d6 Nf1 d7 Rb7 Qc7 Qcf5 Qe5 Rb6 Nb7 Rd6 d8Q Rd2 Nc5+ Bcb7 Rc8 Bbd5 N5d3+ Kb5 Ndf2 Nd4 Qd7+ Kb4 Red8 Qe8 Bf7 Be6 Qa7 Qd7 e8N Bd6 Rb8+ Qb7 Re3 Nb3 Rd3 Bc5 Nd6 B6d5 Re8 Be6 Rd4 Kc3 Rd3+ Kc2 Re3 Qe7 Qd7 Bb4 Rf3 Rf8 g8Q Qef6+ Qg6 Rg8 Ng4 Kd1 Rc3 Rg7 Ngf2+ Ke1 Nfd3+ Kd1 Qe7 B6d5 Be6 Qf8 Bd7 Bg8 Be6 Q8f7 Qd7 Rh7+
n5Nb/NRB1bk1n/2Rq4/RN3qQp/N3R3/rR2B1K1/6N1/rB2Qbb1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 e5 b4 h5 f4 a5 Kf2 c5 d4 e4 d6 c4 g6 c3 b6 e3+ Kg3 e2 b5 c2 d5 a4 g5 a3 g7 a2 f6 Bh3 d7+ Kf7 f5 Bg4 b7 Qa5 d8B Be7 g6+ Ke8 d6 Bf3 b6 Bd5 f7+ Kd7 f8R Bb3 f6 Ke6 d7 Qa7 f7 Nc6 b8R Qb7 Na3 Bd5 Nf3 Bc5 Bc7 Ra4 d8N+ Ke7 Qe1 Qa8 b7 Ne5 Re8+ Kf6 f8N Nc4 Nb5 Be6 Nh4 Bg1 Ng2 Qa5 Be3 c1Q Nc6 Bh3 Ne6 Qcd2 Nc5 Ra3 Nca7 Nb6 Na4 Na8 Re4 Rh7 Rc1 a1B Rc2 Qd7 Rc6+ Qe6 Rh2 Ke7 Rh1 Nf6 g8Q Rg7 Rh2 Nh7 Rh1 Rf7 g7 Rf6 Qd8+ Kf7 g8N Rf5 Qg5 Bh8 Rh2 Rd5 Rh1 Rd1 Rh2 Rda1 Rh1 Nb6 Ra8 Qf5 b8R Qd2 Rb7 Qb4 Rab8 Na8 Rh2 Bg4 Rh4 Bh3 Re5 Qc5 Rhe4 Qe7 Nd4 Qb4 Ra5 Qd2 Ndb5 Qd1 Qf2 e1B Bd3 Bb4 Qe1 Be7 Bb1 Qd3 Rd8 Qd2 Rd3 Qb4 Rb3 Qd2 Nf4 Bf1 Ng2 Qd6+
1RQnq1r1/5Bn1/1N1B1qr1/2N2Qp1/Q2R1B2/2N1rk1b/2N1N3/r1QQb2K w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 Kf6 d4 g5 f4 c5 Kf2 e5 Kg2 a5 h6 a4 h5 c4 h7 c3 b6 a3 d6 a2 d5 c2 d7 e4 h6 e3 b5 e2 d6 e1R b7 Re6 b6 Qc7 d8N Na6 b8N Qb7+ Nbc6 Re4 d7 Re6 Bc4 Rd6 Nc3 Ne7 Ne6 Rd3 d8Q Nc7 Nc5 Nd5 Qd7 Rb8 Rh4 Nb4 Bf7 Ned5 Nd4 Rh3 Nge2 Rd3 Rb1 a1Q Kh1 Qaa8 Qa4 Rg8 h8Q+ Rg7 h7 Qba7 b7 Ke7 f6+ Kd6 f5 Ke5 Bd2 c1R Nc2 Bd7 Rd4 Qb6 Rb2 Bd6 Qc8 Ne7 h8Q Nbc6 Qh5 Ra1 Qc1 Nd8 Rb1 Qaa5 Qg4 Ra8 b8N Re3 Qgg1 Be6 Qgd1 Qab5 Rbb4 Qe8 Rb3 Nd5 Rb2 Be7 Rb3 Rg6 Nbd7+ Kd6 Rb1 Qa6 Nb6 Ke5 Rb2 Nf4 Nbd5 Bd6 Bg8 Ra7 f7 Rg3 f8Q Nh5 f6 Rag7 f7 Bh3 Rb8 Bc7 N3e4 Ba5 Be3 Be1 N4c3 Qae6 Bf4+ Kf5 Nb6 Kg4 Qe7 Rd3 f8B Kf3 Qf6 Re3 Bf7 Rg8 B8d6 Ng7 Qf5 Qf6
1N1rQrkn/6n1/b1Q4b/QrK1b1NN/4R1BR/3q1p1R/1QQB1R1p/3R4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Ke3 Kf7 Kd4 a5 b4 h5 e4 c6 g4 a4 e6+ Kg7 g6 h4 g5 h3 d6 a3 e7 a2 e8R f4 e5 f3 d7 Ba6 b6 Bb5 e6 Bd6 b7 Nh6 e7 Ra5 Nc3 Ng8 Nge2 Bd3 b5 Nh6 b6 Rf5 Ng3 Qc8 d8Q Ng8 Qc2 Rb5 Nce4 Bc4 Qd7 Na6 b8N Rb3 b7 Rh6 Nh5+ Kh8 g7+ Kh7 d3 Bf4 Bd2 Qd8 Rd1 Nb4 Kc5 a1B d4 Rf6 d5 Ba6 d6 Nh6 g8R Nf7 Bb5 Nh8 g6+ Kh6 g7 Kh7 Rgf8 Bae5 g8R Bh6 Rg2 Nd5 Rf2 Nc7 Bc4 Rf4 Be6 Rf7 Rg8 Rf8 Rg4 Rb4 Rh4 Rb5+ Kc4 c5 Qc6 Qd7 Bg4 Kg8 Ng5 Ne6 Rhh2 Qd8 d7 Ng7 Kd5 Bg3 Rhh1 c4+ Kd4 c3 Kc4 Qa5 d8Q Qa3 Qa5 Be5 Rhh2 Rb4+ Kc5 Qb3 Rhg2 h2 Rg3 Rd4 Rgh3 Rd8 Nd7 Qb1 b8Q Qb3 Qbb7 Qb1 Nb8 Qb3 Qb2 c2 Qbc8 Qd3 Qf5 Qe2 Qd3 c1R+ Qdc3 Rb1 Qcc2 Rd4 Rc8 Rdd8 e8Q Qe4 Rc7 Qd3 Re7 Bc3 Re4 Be5 Qba2+ Rb3 Qab2 Rb5+
n5NQ/1N3BbQ/Q1bn4/4N1N1/Qp1BnrRQ/3pbN2/3R4/1rk1KRq1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 h4 Kf7 a4 Kf6 f4 b5 c4 d5 h6 e5 h7 g5 h5 b4 c6 g4 h6 e4 a6 g3 a7 g2 c5 e3 a5 e2 c7 d4 a6 Be7 c6 Qd7 Qd3 Bc5 Bb2 Qf7 Ra2 Bd7 c8N Qf8 c7 Qe7 Rh4 Bb6 Nh3 g1N Nd6 Qe6 c8N Qe4 Nb7 Qg2 Ng5 Nh3 Rg4 Bc7 Nd2 Ba5 Ne7 Qe4 Ndf3 Bc6 Bc3 Qe6 Rd2 Nd7 Qc4 Rf8 a8Q Nf2 a7 Qd6 Qd8 Qe5 a8Q Ne4 Qca6 Nd6 Bh3 d3 Bd4 Nb6 Qd7 Bd5 Qae8 Be4 Qh5 Na8 Qh4 Bd8 Qda4 Bc6 Ne4+ Kf7 f6 Ke6 f7 Nf6 Ng8 Kf5 Neg5 Qe3 Bg2 Nfe4 Bh1 Re8 f8N Bf6 Nd7 Bg7 Nde5 Rb8 Nf6 Rhf8 h8Q Rbc8 h7 Rf7 Qd8 Rcc7 h8Q Rce7 Ng8 Re6 Rg1 Rf8 Rf1 Qg1 Q4h7+ Rg6 Nc4 Kg4 f5 Kf4 f6 Rh6 Bg2 Rh1 Nce5 Rf7 Bb2 Rf8 f7 Ke3 Qe7 Rh4 Qf6 Rf4 Bc3 Re8 f8R Re6 Qe7 Rh6 Rf6 Rh1 Rg6 Nb5 Ne6 Rhh4 Bh3 Nf6 Rd1 Qg3+ Rf2 Nd6 Bd4+ Ke4 Bg4 Rh1+ Kd2 Qg2 Rc1 e1B+ Kd1 Rf1 Bh5 Qg1 Ra2 Bg3+ Kd2 Bf2 Rg4+ Kd5 Re1 Be3+ Kd1 Nfe4 Qh4 Rf2 Rf1 Rb2 Ke1 Rb3 Qb6 Rb2 Neg5 Rb3 Nef7 Kc4 Rd2 Rb2 Qaa5 Kb3 N7e5 Qh2 Bg6 Qg1 Qab5 Ka2 Bf7+ Kb1 Qa4 Kc1 Qba6 Rb1
nR2K1NQ/B1knp3/2N1QQ2/r1N5/BR4b1/1q1pbNR1/2R1r1Nn/1r1R4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Kd3 d5 Kd4 Kd7 Ke5 g5 b4 d4 c4 g4 h4 a4 f4 g3 f6 g2 f7 a3 h6 a2 h5 Ra7 f5 Rc7 b6 Rb7 b5 Rh7 f6 Rc7 b7 Rg7 b6 Na6 h7 Qe8 h8N Nb8 c6+ Kd8 h6 Qd7 h7 Na6 b8N Rg4 c5 Ra7 b7 Ra8 Rh4 Rg7 Qf3 Ra7 Ng6 Ra8 h8Q Qg4 Nf4 Qg6 Bb5 d3 Ba4 Nb4 Be3 Kc7 Nd2 Bh3 Nb3 Be6 Rd1 a1R Rh3 Rh7 Rg3 Bg7 f8R Bh6 f7 Nf6 Rd8 Rc1 f8N Bg8 Nfd7 Rf7 Ke6 Ra5 Rf8 Ng4+ Nf6 Nh2 Rd8 Bh7 Rd4 Nd5 Re4 Qg8 Rb4 Kd8 Bf2 Qf8 Ng8 Rb5 Bd4 Rb1 c7+ Ke8 c6 Nb6 Qf2 Na8 Ba7 Ra5 Qf1 Qg7 Qf2 Qd4 c8Q+ Qd8 Qfd4 Be4 Qc3 Bf3 Qce5 Rf5 Qef6 Bg4 c7+ Rab5 Nd7 Ra5 b8R Bg5 Nd4 Bh6 Nge2 g1N Ng2 Ngf3 Ng1 Be3 Qa6 Ne5 c8R Bh6 Rc2 Be3 Qd6 Qc8 Qc6 Kd8 Qe4 Rf3+ Qef5 Rf2 Ngf3 Ng6 Kf7 Re2 Q5e6 Nf8 R8b7 Qc3 Nc5 Nd7 Rb8+ Kc7 Nc6 Qc4 Ke8 Qb3
2N2NB1/p1rnBR2/QQ1Nr1Q1/2Q3Rb/1K2q2B/N3r2k/1p2N2b/nb5Q w - - 0 1 illegal: No proof kernel
R1nQb1Bk/1B4Nq/4q3/BNQ3N1/rr1b1KBR/2p5/2pn4/QbB1Q1Q1 w - - 0 1 illegal: Other
b2knR2/B1r3q1/4pb1R/2B1RN1B/1K4QR/1n1np1Br/1Q2NBR1/q5Q1 w - - 0 1 illegal: Other
1q3q1Q/1NNrpRQr/2qp2bR/8/5Rn1/1B1Rn3/1BNNR2b/K2k1BN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 f4 a5 b4 g5 Kb2 g4 h4 g3 c4 a4 h6 g2 h5 Nc6 h7 Nh6 b6 Rg8 h8Q+ Rg7 b7 Ra5 b8N Rb5 Rh3 Qc7 Ra2 a3+ Ka1 Qa5 Na6 Ng8 h6 Nb8 c6 Qd8 h7 Qc7 c5 Qb6 c7 Qc6 Nd2 Qa8 c6 Re5 b5 Nh6 b6 Re2 b7 Ng4 Bb2+ Ne5 Nb4 Na6 Nc2 Qb8 Rd3 Nb4 Qe1 Nd5 Qg3 Ne3 Qg4 Qa8 b8N Qb7 Na6 Qb8 Qg3 Bb7 c8N d6 c7 Be4 Nb6 Rf2 c8B Rf3 Nd4 N5g4 Nc7 Rf2 Na4 Rf3 Nge2 g1Q Be6 Qh1 Ng1 Rf2 Nc5 Rg2 Nb1 Rc2 Nd2 Rc4 Nb7 Rc2 Na6 Rc7 Bb3 Rd7 Nc7 Qg2 Qg8 Qf2 h8R Rh7 Qg2 Bh6 Qc8 Kg7 f6+ Kg6 f7 Kh5 f8R Bg6 f5 Bf4 f6 Bh2 f7 Kg5 Qd8 Kf4 Nc2 Qf3 Qc8 Qc6 Qe8 Rg7 Rh6 Rh7 Qe4+ Kg3 Qe5+ Kf2 Qg7 Ng2 Ne3 Ke1 Nc2+ Kd1 Rg8 Qa7 f8R N2e3 Rf4 Qa8 Qef8 Qb8 Qff6 Qf8 Qh8 Qb8 Rg7 Qf8 Rf7 Qb8 Bd4 Qf8 Rb2 a2 Qfg7 Rd8 Nc5 Qg2 Ndf3+ Kc1 Nb4 Rd7 Bd5 Bf5 Re2 Nf2 Nd2 Bg6 Nc2 Kd1 Kb2 a1Q+ Kb3 Qa5 Kb2 Nfg4 Bb3 Qa7 Nb7 Qab8 Ka1 Qe4 Bb2 Qc6
n4B1R/kB6/2bp1rbq/Kp1Rr2Q/1B1NQ3/NQR5/2RB3R/B1b1bn2 w - - 0 1 illegal: No proof kernel
2K2k1B/B1pB1r2/3n2Rn/N1Qr4/N2N1nQ1/pbB1b3/3qQ2N/Bn1R3N w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Kd3 e5 Kc4 g5 b4 e4 d4 e3 f4 g4 h4 g3 f6 g2 d6 e2 Kc5 e1N h6 a4 h7 a3 h5 Bg7 h6 Kf7 d7 Nc2 d5 Ba6 f5 Nc6 d6 Ne3 b6 Bb5 b7 Bf8 b8B Bg7 Qg4 Na5 Ne2 g1N Nd2 Ra7 Bh3 Bc4 b5 Bd3 b6 Bf8 b7 Bb5 Ng3 Bf1 Bb2 Nc6 Rd1 Bc4 Ndf1 Be6 Nh2 Nb4 Ba1 Ra6 Ba7 Nf1 b8N Qe8 d8Q Nd5 Nd7 Qe7 Nb6 Qe8 Na4 Nge7 d7 Ne2 Rg1 Nc1 Nh1 Rg8 h8B Rb6 h7 Rg5 Bg7 Nb4 h8B Nc8+ Qe7+ Kg8 d8N Nd2 Nc6 Qd8 Na5 Nc6 Rg3 Ne5 f7+ Kh7 f6 Nb1 Rgg1 Nd6 Qe8 Be7 f8Q Ne2 f7 Bb3 Qb5 Nf4 Qbe2 Bf6 Qe7 Rb8 f8N+ Kg8 Ne6 Nef7+ Kc6 Nh6 Nd4 Rd5 Q7e5 Bg5 Bf6 Qf8 Kd7 Qg7+ Qe7 Rf8 Rg2 Rf7 Bc3 Nc4+ Kc8 Qg6 Qc5 Qd3 Qh4 Qd2 Bd7 Nh5 Bfg7 Be3 Rg6 Nf4 Qhg4 Nd6+ Kd8 Re7 Ba1 Rh5 Ndf3 Rf5 Bgc3+ Kf8 Nd4 Ref7 Qe5 Ne4 Kc8 Rg5 Q5b5 Rd5 Qc5+ Nd6+
q1N2RbR/Q2p1p2/1n1Q1K2/6n1/1BR3rp/RBb2Q2/N3B1B1/nR2B1kr w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 c4 Kg4 b4 Kg3 e4 Kf2 g4 a5 g6 h5 c6 h4 b6 a4 c7 a3 g7 a2 e6 Ra3 Ke5 Rc3 c5 Nh6 g8R Rg3 g5 Ra3 c6 Rc3 b7 Rg3 g6 Qe8 g7 Rg6 e7 Rd6 b5 Rd5+ Kf6 Nf5 e5 Qd8 e6 Rd4 b6 Rd2 Bg2 Rh5 Nh3+ Kg3 Nc3 Na6 b8Q Bb7 c8B+ Rd6 c7 Ne3 Nf4 Kf2 Nfd5 Nf1 Rh8 Ne3 g8B Bc6 b7 Ba4 Qa7 Bh6 b8B Qf8 e8Q Rb6 Ba3 Nc5 Bh7 Rb7 e7 Ne6 Nb6 Ng7 Qd6 Rb5 Rhb1 Rg5 Bc2 Rg3 Bb3 Ne6 Bb4 Ng5 Qd8 Bc6 e8R Nc4 Q8e7 Ba4 Qe4 Rg4 Qed3 Qg8 Rf8 Bc6 Qf5+ Bf3 Qe4 Bd1 Qf3+ Kg1 Qa8 Ra7 Ba6 Rb7 Nc8 Nb6 Baf1 Bc2 Qa5 Bh7 Qa7 Nh3 Be2+ Bc1 Rb2 Ng5 Rab1 a1N Ra2 Nh3 Ra3 Ng5 Bbd1 Be3 Na2 Bc5 Be1 Bb4 Bb3 Bd2 Ne7 Ba5 c8R Rc7 Bb4+ Rc1 Rc4 Rd1 Nc8 Rf1 Rd8 Qe8 Bc7 Bg8 Be1 Qe4 Rf8 Qa8 Bd8 Bb4 Be7 Bc3+ Qd4+ Kh2 Bc5 Rh1 Bb4 Bd2 Qdd5 Kg1 Qd6 Bc3+
Q6K/n2q2pB/R1r4B/1N2RR1N/2krNn1b/QqBR2pp/1B1R2b1/6B1 w - - 0 1 illegal: Other
2BR1n1r/B1B3p1/2pN4/b2Q2Nr/1R1Bn3/1K1QN1qb/3Q1pN1/1B2qN1k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 e4 a5 b4 f5 d4 a4 Kd2 c6 Kc2 a3 b6 a2 d6+ Ke6 h6 f4 h5 f3 b5 f2 h7 Ra5 d5+ Kf7 h6 Kg6 d7 Bb7 d6 Ra3 e6 Qg5 d8Q Qg4 e5 Kf5 d7 Ke4 e7 Qe2+ Nd2+ Kf4 e8B Kg3 e6 Rd3 e7 Ba8 b7 Ra3 b6 Ra5 Rh4 Rg5 Kb3 Qg4 Nh3 Kh2 Bg6 Re5 e8N Qf5 Bb2 Ba3 Nf6 Re2 Ng4+ Kh1 Bd4 Re5 Ba6+ Kg2 Nf1 Qf3+ Nge3+ Kh1 Qd2 Be7 Rd1 a1Q Nf4+ Kg1 Ng2 Bd6 Bb1 Ne7 Re4 Re8 h8N Rh5 h7 Rc5 Nf7 Qg3 h8N Bf4 Ng5 Nc8 Nhf7 Bc7 Nd6 Rh8 Qg8 Bd8 Qd5 Kh1 Rg4 Bc7 d8Q Nd7 b8B Nf8 b7 Ba5 Bc7 Qc3+ Ka4 Qc1 b8B Bb7 Ba7 Qc3 Qd3 Qd2 Kb3 Qe1 Bc3 Rb5+ Rb4 Rc5 Bd4 Rb5 Ndf5 Nd6 Qd7 Ne4 Nd6 Bc8 Qd8 Be6 Bc8 Bh3 Qd7 Nf6 Qd2 Rc5 Q7f5 Rb5 Qfd3 Ne4 Qf7 Rd5 Nb5 Rh5 Bf6 Re5 Qb2 Re8 Qdc3 Bg4 Rd8 Rh7 Qbd2 Bh3 Bfd4 Ne6 Qcd3 Rh5 Nd6 Reh8 Qg8 Nf8 Qgc4 R5h6 Qd5 Rh5
4n1bn/4R1qR/2kN2N1/1r2BRpp/2BQ1N2/pRbN2K1/p4QrN/1B4R1 w - - 0 1 illegal: Other
6K1/2B3N1/B3Bn2/1N1NB1pN/1q3Q1B/npp2R1R/3pnp2/2k1B1BN w - - 0 1 legal: proof: b4 h5 d4 d5 g4 b5 gxh5 g5 Qd2 e5 Qd1 a5 bxa5 c5 c3 e4 c4 b4 Qb3 Bd7 Qd1 Bb5 cxb5 c4 e3 Bc5 dxc5 d4 Qe2 d3 Qd2 Ra7 Qd1 Rd7 f3 Rd4 exd4 e3 Qc2 Rh6 Qe2 Re6 Qd1 Re4 fxe4 Qc7 Na3 Qb6 Nb1 Qd8 a4 Kd7 h4 Ke6 h6 f5 d5+ Ke5 d6 Kf4 d7 c3 h5 b3 c6 Qe7 d8B Nd7 h7 Qb4 h8B Nb6 a6 Nf6 h6 Qe7 h7 Nfd5 a7 Qb4 a8N Qd4 c7 Qf6 c8B Qd4 a5 Qa4 a6 Qa5 e5 Qa3 a7 Ne7 e6 Ke4 Be5 e2 Kf2 e1N Kg3 f4+ Kg4 f3 Kh5 Nd7 Kh6 Qa5 Kg7 Nb6 h8B Qb4 Bdc7 Nc6 e7 Qc4 e8N Qd4 Rh3 Nd7 b6 Nf8 b7 Ng2 b8B Qa4 Nd2+ Ke3 Kg8 Nf4 Nb6 Nd5 a8N Qe4 Be6 Qf4 Ne2 Na5 Ng7 Qg3 Nf4 Qg4 Nfh5 Nb4 Nd5+ Kf2 Ne4+ Kg1 Bd2 Nbc6 Be1 d2 Ba6 Qh4 Neg3 Qb4 Nh1 Nd7 Qc2 Nd4 Qe4 Nc4 Qf4 Kf1 Bh4+ Ke2 Rf1 Nc2 Ba7 Kd3 Baf2 Nd4 Be1 Ne2 Bd4 Kc2 Bg1 Na5 Nf5 Nc4 Bhe5 Kc1 Nfg7 Ndb6 Bb8 Na3 Nac7 Nd7 Nb5 Qd4 Bbc7 Qc4 Rf2 Qb4 Rg2 f2 Rgg3 Kc2 Re3 Kc1 Ref3 Nf6+
5BR1/b1B4k/2RNKBbq/B5B1/p1NrR1R1/7q/2n1pB2/Rq1Bnr1Q w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 c5 Kf4 a5 Ke5 g5 b4 Kg7 h4 c4 d4 c3 f4 a4 d6 c2 b6 e6 d7 g4 d5 g3 f6+ Kh7 f5 g2 b5 Ne7 d6 Ng8 f7 Bg7+ f6 Qe8 d8R Ne7 f8B Qc6 d7 Qb7 h6 Kg6 h7 Qf3 h5+ Kf7 b7 Qd3 b6 Na6 b8B Qb3 h6 Kg6 b7 Qb2+ Nc3 Nc7 Nf3 g1Q Nd2 Ra7 Re8 Ra6 d8B Qa2 Nc4 Qe3+ Ne4 Ned5 Ba7 Nb5 b8B Qh3 Ba5 Na3 Bbc7 Nf4 Rg1+ Ng2 Bg5 c1Q Bf2 Rd6 Be2 Ne1 Rg4 Rd4 Ned6 Qab1 Be7 Rg8 h8R Rf8 h7 Nac2 Rg8 Bd7 Rc8 Be8 h8R Qd2 Rhh4 Rf7 Bh6+ Kh7 Bg5+ Bh6 Qc1 Rf8 Re4 Bg6 f7 Qde3 Kf6 e5 Bd1 Qd2 Reg4 e4 Ke6 e3 Bed8 e2 Bdf6 Qhc3 Re4 Qh3+ Rhg4 Bg7 Bb8 Qde3 Rc6 Qh6 Bbc7 Qeh3 Qe3 Bh8 Qf3 Bg7 Be5 Bf6 Qh1 Be7 Bef6 Bd8 Bb8 Bb6 Bc7 Bc5 Bad2 Ba7 Bda5 Rb8 f8B Rb3 Bfh4 Rf3 Bg3 Rf1 B3h4 Qb2 Bf2 Qb1
NKQ3n1/4Q3/1b5k/6bB/n2N1Q1B/2bQ1n2/R1p3qR/R1B1N1RR w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 g4 h5 gxh5 a5 c4 d5 cxd5 Rh6 a4 Qd7 axb5 Raa6 bxa6 a4 b5 Rc6 b6 Rc4 Bxc4 Qd8 Bf1 Bd7 Bg2 Bb5 Bh3 Bf1 Bxf1 a3 Ke2 Kf7 Kf3 Kg7 Ke4 e5 d4 c5 f4 a2 h4 c4 d6 g4 Kd5 g3 d7 e4 h6+ Kh7 a7 c3 a8N e3 b7 g2 f6 e2 h5 e1B f5 c2 f7 Bd2 f6 Qe7 d8B Qe1 Nf3 g1N Be2 Ne7+ Kd6 Na6 b8R Nc7 d5 Be3 Rb2 Bd2 Nd4 Nh3 Rg1 Ba5 Qd3+ Kh8 h7 Qh4 Nd2 Bc3 N2f3 Qe4 Ne1 Bg7 f8Q+ Ng8 f7 Qg2 Qe7 Bd2 f8Q Qf2 Qf4 Na6 Bf3 Nc5 Kc7 Qe3 d6 Ba5+ Kb8 Bf6 d7 Ng5 Be2 Nf7 Bg4 Kg7 h8R Qe4 h6+ Kg6 h7 Bg5 Bh5+ Kh6 Bc7 Qe2 d8Q Qg2 Qc8 Bb6 Bd8 Qf1 Rab1 a1B Ra2 Bc3 Rba1 Qg2 Rh1 Nf6 Rg8 Na4 h8R+ Nh7 Rg7 Ne5 Bc7 Qe4 Qh2 Be3 Rgg1 Qg2 Rf8 Qg4 Rf2 Nf3 Bg3 Bg5 Bh4 Nf6 Qf4 Ng8 Rfh2 Qg2
2R1R2q/k1N3R1/1r2q1Q1/2rB2Kn/q1NB3n/2Q1NQ1B/1bRn1RN1/4r3 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Kf2 Kd7 Ke3 Kc8 Kf4 Kb7 d4 a5 b4 c5 b5 h5 f6 h4 d6 a4 g7 h3 d7 a3 f7 a2 d5 c4 g6 h2 d6 c3 g5 c2 Be3 c1Q Nd2 e6 Bh3 Qc3 Nc4 Ra5 Nf3 Ne7 g8Q Nbc6 g7 Nb8 g6 Na6 Nh4 Nb4 Rc1 a1Q Rc2 Qd2 Rg1 Qe8 d8Q h1N d7 Ra7 Rg4 Qd5 Ng2 Nc8 Qf6 Ra2 d8R Qed7 Re8 Na6 Rg3 Bc5 f8R Nd6 Qg4 Qh5 Qc3 Ra5 Bd4 Qa4 Qf7 Nf5 g8N Qe7 g7 Nh4 Nf6 Ba3 g8B Rh6 Nd5 Bb2 Qgf5 Qd7 Rg7 Nc5 Rc8 Rf6 Qg6 Qh8 Kg5 e5 Qfd3 Rd6 Rff2 e4 Qf3 e3 Bge6 e2 Nde3+ Rc6 Re8 e1R Bf7 Qc8 Bd5+ Kb8 b7 Ka7 b8N+ Qd7 Na6 Ng3 Qh7 Nh5 b6+ Kb7 Qhf5 Nb3 Qg6 Rc5 Rc8 Nd2 Nc7 Qa3 Na8 Ka6 b7 Qa4 Re8 Rb6 b8R Qd6 Rbc8 Qe6 Nc7+ Ka7
Br2N3/3RBb1N/q1Rr3N/r1bkBR2/K4R2/R2b1r2/qQ2Q3/1nNQ4 w - - 0 1 illegal: No possible last move
q2q4/3R2Bk/1N3Rn1/3n3K/2b2rqN/2bRQ3/1N1NBBq1/N2QQb1R w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 f4 h4 f3 hxg5 Na6 g6 Rb8 g7 Rb6 g5 Rf6 g6 Rf5 Rh5 Rg5 Rh1 Rg3 fxg3 Nb8 g4 f2+ Ke2 Qd7 g5 Qd6 Bg2 f1N Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Kf2 h5 Kg3 e5 Kh4 c5 b4 e4 d4 e3 f6 c4 b6 e2 b5 c3 b7 c2 d6 a4 d5 a3 b6 a2 f7+ Kd7 Be3 e1Q+ Bf2 c1Q Na3 Qee7 Be2 Qde8 Nc4 Qc2 Nf3 Qd3 Nfd2 Qe6 Nb2 Ne7 g8Q Qd8 g7 Qc7 g6 Na6 b8N+ Kd8 b7 Qe5 d7 Nc5 Na6 Qb6 b8N Qc6 Nb4 Ba6 Nc2 Bc4 Rc1 Ne4 Na1 Qee6 Rf1 Kc7 d8R Nc3 Nd7 Kd6 Nb6+ Ke5 d6 Kf6 d7 Ncd5 Qh7 Qa8 g8Q Bg7 Qe8 Rf8 Qh6 Qf3 Rb1 Qg2 Qe3 Bh8 g7 Kg6 g8R+ Kh7 Rg3 Bc3 Kg5 h4 Kh5 h3 Rh1 Rg8 f8B h2 Bg7 Qb8 Rf3 Qe4 Rf6 Ng6 Rc1 Rf8 Qe6 Bb4 Rc3 Ba5 Rd3 Bc3 Re8 Qa8 d8N Rf7 Nb7 Qd8 Nd6 Rf8 Nab3 a1Q Re7 Qaa8 Nf5 Qf4 Nh4 Qfg3 Rf1 h1B Rd7 Rf7 Na1 Q3h3 Rf3 Rf4 Re1 Qf1 Q6e4 Bg2 Qe6 Qg1 Rf1 Qgh2 Rh1 Bf1 Qe8 Q2g2 Q8e4 Rg4 Rf6 Rf4 Qe5 Ba5 Qc3 Bb4 Qcc1 Bc3 Qe1 Qhg3 Qcd1 Qg4+
3k2B1/1Brn2nn/2n3N1/N1rN3Q/RbBQNr2/2B2R2/2R1Qb2/3n2NK w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 b5 g4 e5 fxe5 f5 a4 f4 axb5 Bf5 gxf5 g4 h3 g3 Qa4 Qh4 Qd1 Qg4 hxg4 Ba3 Rh5 Bd6 Rh1 Bf8 Nh3 h5 b4 c5 e4 a5 d4 a4 g5 c4 b6 c3 e6 a3 b5 h4 b7 f3 d6 c2 g6 g2 Kf2 g1R e5 a2 g7 Ra5 f6 Rh5 f7+ Kd8 d5 Rhg5 e7+ Kd7 e8B+ Kd8 e6 R1g4 d7 Ra7 e7+ Kc7 d8R Rga4 d6+ Kb6 d7 Kc7 b6+ Kc6 Nd2 Rf4 Bc4 Ra4 Rh2 Rgg4 Bb2 c1B Ng1 h3 Ne4 Ra6 Bc3 Nf6 g8B Rg6 Kf1 f2 Qh5 Ra7 Rg2 Ra6 Rg3 Rg7 Rf3 h2 Bd3 Rg5 Bc4 Re5 Kg2 h1N Kh2 Re6 Kg2 Be3 Kh2 f1N+ Kg2 Bg7 f8N Ra7 Bb3 Na6 b8Q Nf2 b7 Re5 Ng6 Nc5 Bbc4 Nd1 Kh1 Bf8 Qa8 Kc7 b8N Ref5 Nc6 Nh7 Rb8 Bf2 Rb2 Rb7 Bef7 Ra7 Bfd5 Nfe3 Re2 Rg5 Rd2 Nf5 e8N+ Kb6 Nc7 Ng7 d8Q Be7 Rc1 a1N Ra2 Nab3 Qab8+ Rb7 Na5 Nd4 Ra4 Bd6 Qf6 Nd7 Bc6 Ba3 Qd6 Rc5 Qd8 Ndf6 Rc2 Bb4 Q6d7 Ra7 Ba8 Nc6 Qd2 Rb7 Q8d4 Nd7 Qe2 Ra7 Ne8 Rb7 N8f6 Kc7 Nd5+ Kc8 Nh8 Kd8 Ng6 Rc7 Bb7 Rf7 Bd3 Rf5 Bc4 Rf4
3q1NNn/Q2B1k2/2q1n1N1/R1N1nK2/1n1QRBqB/2b5/2R1n3/2BBQ2b w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Na5 axb3 Nc6 b4 Nb8 b5 Ba6 Nf3 Bb7 Ng1 Bc8 h3 a5 Qa4 g5 Qd1 h5 Qf3 Ra6 Qd1 Rc6 Nf3 Rc4 Ng1 Rf4 h4 Rf5 gxf5 g4 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Ke2 c5 Kd3 e5 Ke4 g3 b4 g2 d4 h4 b6 c4 b7 c3 b5 a4 d6 h3 b6 c2 g6 h2 d5 a3 g7 a2 Be2 Nc6 b8B Na7 b7 Be7 f8N+ Ke8 d7+ Kf7 d6 Nb5 Nf3 g1N Nh7 Nh6 Nbd2 Qa5 d8B Na7 g8B+ Ke8 f7+ Kd7 f8N+ Ke8 f6 Nc6 Nh4 Nf3 Re1 h1Q Nhg6 Nb4 Nb3 Nf7 Nc5 Nh8 Be6 Ng5+ Kf5 e4 Bd7+ Kf7 Bbc7 e3 b8Q Ne6 Qa7 Qc6 Bh5 Kg8 f7+ Kg7 Nf6 e2 Bf3 Bb7 Ng8 Bf6 Qd2 Bd4 Bh4 Bc3 Bb2 c1Q Kg4 Nd3 Be8 Ba6 d7 Ndf4 d8Q Bb7 Nh7 Qd1 f8R Qca6 Bc1 Bd5 Rf6 Qc6 Nhf8 Be4 Q8d4 Qab6 Rg1 e1N Rg2 Ned3 Qe1 Qb8 Re2 Qd8 Rc2 Bd5 Be2 Bh1 Bf3 Qe2 Bd7 Qee4 Bd1 Ne2+ Kh5 Qg2 Bh2 Qge4 Rf4+ Ne5 Rg4 Qg2 Re4 Kf7 Bhf4 Qg1 Rb1 Qg3 Rb5 Qg2 Ra5 a1N Rca2 Nc2 Kh6 Nb4 Rc2 Nf3 Kh5 Qh2 Kg4 Ne5+ Kf5 Qg3 Na6 Qg2 Nc5 Qg4+
B5K1/r2r2N1/nn1rRN2/4QnB1/qn1B2RN/1nB2R2/Q2NN3/3knQ2 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 c5 d4 h5 b4 a5 g5 g2 d6 h4 Kd5 c4 g6+ Ke8 Ke6 a4 b6 c3 f7+ Kf8 d7 Kg7 f8N Kh6 Kf7 c2 d5 a3 d6 h3 b5 e4 b7 h2 g7 e3 f6 e2 f5+ Kh5 b6 Kg4 Qd5 e1R Ne2 g1N Be3 c1N Nd2 a2 Bg2 Nf3 Ng6 Ra5 Rg1 h1N Nh4 Nf2 Bd4 Ne7 g8N Qc8 d8N Ra3 d7 Rb3 Ne6 Rb1 d8B Rh6 Ng7 Nd7 b8B Rb3 b7 Qc4 Bbe5 Qa4 b8Q Ra3 Bc3 Nb6 Bed4 Ne4 Qbe5 Nd3 Qc4 Rf1 Re1 a1N Qa2 Rh7 Kf8 Nec5 f7 Rh6 f6 Nf5 Be7 Nab3 Bh1+ Kh3 Rg4 Nb4 Bd8 Nca6 Be7 Ng5 Ba8 Rg6 Nh6 Rf4 Kg8 Nf3 f8Q Re4 f7 Rd6 Bg5 Rd7 Qf6 Re6 Q8e7 Red6 f8R Kh2 Qee5+ Kh3 Rf1 Ne1 Re8 Rf7 Re6 Rc7 Ng3 Rcd7 Rf3 Kh2 Re3 Kg1 Ne2+ Kf2 Qf7 Nec2 Rf3+ Ke1 Kf8 Rc7 Ng8 Kd1 Nf6 Ne1 Kg8 Ra7 Qc7 Rb7 Qc4 Rbd7 Ng3 Na1 Qf1 Nb3 Ne2 Qc6 Ng6 Nc7 Qd5 Ra7 Nh4 Nca6 Qe5 Qa4
BNQ2q1R/7r/1K1R4/Bb4q1/nn2B1Nk/QrpR4/BN1nR3/RbQ5 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 Ke7 Ke3 h5 Kd4 a5 Kc5 a4 d4 a3 b4 a2 f6+ Kd7 b6 h4 b5 e5 d6 Ke6 d7 Kf5 b7 e4 f7 e3 f8Q+ Nf6 g8Q h3 g7 e2 g6 Kg4 b6 h2 d5 c6 d6 Kh5 Nd2 Ra3 Nh3 Qe8 d8R Rh6 d7 Rf3 Nc4 e1Q Bd2 Qf7 Nb2 Qfe6 Ba5 Q1e2 Nf2 Nd5 Qc1 Q6e5 Ng4 Rb3 Bg2 Kh4 Be4 Rh7 Re1 Qf1 Re2 h1B Qe6 Qg5 g8B Qf3 g7 Nb4+ Qef5 Bg2 Bgd5 Bf1 g8B Qff4 Bgf7 Qf3 Qe7 Qf4 Rh8 Qf3 d8R N8a6+ Kc4 c5 Kb5 c4 b8R c3 b7 Be6 Kb6 Nc5 Rd6 Bd7 Rbe8 Bb5 b8N Bd3 Ba8 Bb1 Red2 Bb5 Qc8 Qf5 Be6 Qf8 R2d3 Nba6 Qf1 Rb4 Rc6 Rh6 B4f5 Ne4 Bc4 Nd2 Qc1 Rh7 Bd5 Rf4 Qa3 Rb4 Rd6 Nc5 Bf7 Bc2 Rb1 a1N Ba2 Rb3 Rg3 Bcd3 Re2 Nc2 Ra1 Nb4 Bfe4 Bb1 Rgd3 Na4+
nk3KQ1/5Q1R/1qB2R1N/NRbrr2B/3NQ2q/Bp3n2/r6B/1bQ1Q3 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 d5 cxd5 c5 bxa5 c4 d4 c3 g4 c2 gxh5 Rh7 Bd2 c1Q Be3 Qc2 Bc1 Qc5 dxc5 Rh8 Ke2 Kd7 Kd3 Kc7 Kc4 g5 a4 e5 h4 g4 f4 g3 f6 g2 a6 e4 d6+ Kd7 Kd5 b5 a5 e3 a7 b4 h6 e2 c6+ Ke8 d7+ Kf7 a6 e1Q h5 b3 f5 Ne7+ Kd6 Bg7 c7 Ng8 h7 Qe3 h6 Nc6 Nf3 g1R Nd4 Bb7 c8Q Nb8 Qe1 Nc6 Ba3 Qc1 Be2 Qe3 Nd2 Nb4 Qcc1 Qa5 d8B Ke8 f7+ Kf8 Bh5 Rg5 Nc4 Qe8 Bc7 Rb8 a8B Nc2 a7 Ba6 Bc6 Ne7 a8Q Qb6 Na5 Bd3 Rh2 Rg8 h8Q Nd5 h7 Qe4 Qb7 Bh6 Qf6 R8g7 h8N Re8 Qe6 Qh4 Q6e4 Rh7 Bb8 Nc7 Rh3 Kg7 f8R Re5 Nf7 Na8 Qd7 Rd5+ Ke7 Rh8 Ke8 Kf6 Bh2 Rg2 Qc7 Be3 Qcg3 Rh7 Qg8 Rhg7 Nh6+ Rf7 Qc3 Ne1 Ra2 Nf3 Q3e1 Rg5 Rc2 Bg1 Rc5 Bb1 Rb5 Rg2 Rg3 Ra2 Rg7 Be3 Rh7 Qg3 Qec2 Ke5 f6 Rb7 Rff7 Re7+ Kf8 Re6 Rd7 Re7 f7 Re6 Rd6 Re7 Bg1 Qh4 Rf6 Re6 Bb2 Kd6 Qe4 Kc7 Ba3 Kb8 Bh2+ Rde5 Kg7+ Re8 f8Q Rd8 Qff7 Bf2 Be8 Bg1 Kf8 Rd5 Bc6 Rd6 Ndf5 Bc5 Nd4 Rdd5+
bN6/2Br1Q2/1NKb2qQ/2NR2B1/B2p1r2/n4Nq1/3rn1R1/kN1BRQ2 w - - 0 1 illegal: No possible last move
QQ1R4/2Q2q2/B2R3b/1NRBBpb1/1R1N1q2/Bb4nK/Nn2R2b/k1q5 w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 f5 c4 b5 cxd5 a6 axb5 Ke7 g4 Kd7 g5 Ke8 h4 h5 Qb3 a5 Qd1 Ra6 Rh2 Rf6 gxf6 g5 Rh3 g4 Rh1 Rh6 Qa4 Rg6 Qd1 Rg5 hxg5 Bd7 Nf3 Be6 Ng1 Bc8 Kf2 Kd7 Kg3 c5 e4 c4 b4 c3 d4 a4 f7 a3 g6 a2 b6 c2 e6+ Kd6 e5+ Ke7 b5 Nh6 b7 Qc7 g7 Ng8 b6 Bd7 d6+ Kd8 d5 Ne7 g8B Ng6 Ba3 c1Q Nc3 Be7 f8Q+ Be8 d7 Nc6 b8B Nd4 b7 Bg5 Rh4 Nf4 Ba6 Nd3 Nf3 Nb2 Qc2 Ne2+ Kg2 g3 Kh3 g2 Nd4 Qf4 Rc1 a1B Na2 g1B Qc6 Qd2 Rc5 Ng3 Rf4 h4 Qfd6 Qc8 Qdc7+ Ke7 d8R+ Qd7 Bf7 Bh2 d6+ Kf8 e7+ Kg7 e6 Kf6 Bg8 Bf7 e8R Bh6 e7 Bb3 Re4 Qf4 Bd5 Qe6 Qa4 Qf7 d7 Bg5 Rc8 Bh6 d8R Bg5 Re2 Bh6 Rd2 Bg5 Rd6+ Ke5 Red8 Bh6 e8N Bg5 Rf2 Bh6 Be6+ Ke4 Rb5 Kd3 Re2 Bg5 Bd5 Bh6 Re7 Kd2 Rb4 Kd1 Nc6 Kc2 Nd4+ Kb1 Re2 Bg5 Qc4 Bh6 Rc5 Bg5 Nc7 Bh6 Bf3 Bg5 Ncb5 Bh6 Kg2 h3+ Kf2 Qe8 Qf7 Qg8 Rdd5 Nc4 Nc2 Be5 Ncd4 Bf6 Be5 Qg6 b8Q Bfg5 Bc8 Nb2 Qfc7 Ka1 Qaa8 Qf7 R5d6 Bg1+ Ke1 h2 Ba6 Ne4 Kf1 Ng3+ Kg2 Bc4 Rc2 Bb3 Kh3 h1Q+ Rh2 Bf2 Bc6 Qhc1 Bd5 Bg1 Re2 Bh2
6RN/Q1pB2N1/2RBR2R/NnnbB1bn/1nQn2n1/kN6/4N3/4KQ1q w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Na5 axb3 Nc6 b4 Nb8 b5 Ba6 Nf3 Bb7 Ng1 Bc8 h3 a5 Qa4 g5 Qd1 h5 Qf3 Ra6 Qd1 Rc6 Nf3 Rc4 Ng1 Rf4 h4 Rf5 gxf5 g4 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Kf2 Kd6 b4 e5 d4 h4 b6 h3 b5 h2 g6 e4 g7 a4 b7 a3 b6 a2 Qc2 Be6 Bf4+ Kd7 d6 Nc6 b8N+ Kc8 d7+ Kb7 d5 Na5 d6 Nh6 g8R Nb3 Nc6 Nd4 Bh3 Ka6 b7 Kb5 Nd2 Qc8 b8Q+ Qb7 d8N Qb6 d7 Be7 f8Q Ba3 f7 Qb7 Nb3 Be7 f6 Ka4 Nca5 Ka3 Rc1 Nb5 Qa7 g3+ Ke2 g2 Be5 e3 Rg6 Bd5 Ne6 Bc6 d8R Be4 Bf5 Ng4 Ng7 Qc6 Kd1 e2+ Kd2 e1N Bd7 Bf3 Ne2 g1N Qd3 Qd5 Rc6 Nc2 Ra8 Qe4 Qc4 Nb4 Ke1 Bd8 Qe8 Be7 f8N Bg2 f7 Bg5 Rge6 a1N Nc5 Qh7 Ng6 Nb3 f8B Bd5 Nh8 Qh3 Qf7 Nf3+ Kd1 Nfd4 Bfd6 Qh7 Ke1 Qh5 Rg8 Qh7 Rg1 h1N Qf1 Ng3 Rh1 Qe4 Rhh6 Qh1 Reg6 Nh5 Re6 Nd2 Ncb3 Ne4 Bf8 Nc5 Be7 Qg1 B7d6 Qh1
N2Bb1b1/3k2n1/B4B2/Q1qpbK2/n1N1Q3/1q1RR2R/2Rp2rQ/3NRN2 w - - 0 1 illegal: Other
1QbR1rk1/1pp3b1/1Q1Q2R1/1q1K4/2RB2NB/N2N2qQ/B3r2n/2q2NN1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 Be6 h4 Nf6 g4 Qd7 h5 Ng8 g6 Nc6 g5 Ne5 g7 Ng6 hxg6 Qd8 Rh5 Bd7 Rh1 Bc8 Kf2 e5 Ke3 h5 Ke4 h4 a4 h3 d4 h2 a6 Rb8 d6 Qf6 a5 Ra8 d7+ Ke7 d8B+ Ke8 a7 Bb4 d5 Bc3 d6 Qf7 a6 Qa2 f6 Be6 f7+ Kd7 f8N+ Ke8 Be3 Qf2 Nd2 Rc8 a8Q Qf7 a7 Qf2 Bc4 Qg3 Nd7 Rh7 Rc1 Qf2 Bd4 Bb2 Nf1 Rh3 Nc5 Nh6 g8Q+ Qf8 g7 Bd7 g6 Rf3 Ba2 Rh3 Bh4 Rd8 Nd3 Nf7 Qh7 Nh6 g8N Be6 g7 Kf7 d7 Qd6 Qb8 Rf8 d8R Qd7 a8N Qb5 Nb6 Ng4 Rc4 Bc8 Nf6 Rf3 Qh6 Rf2 Qe3 Re2 g8Q+ Ke7 Qh8 Kf7 Qd2 Ba1 Qb4 Bc3 Qd6 Bb2 Kf3 e4+ Kf4 Bc3 Qh6 Ba1 Qh3 e3 Ke4 Bb2 Nfd7 Kg8 N7e5 Qb4 Kd5 Qb5+ Rc5 Bc3 Nbc4 Ba1 Na3 Bc3 Ngf3 Bb2 Rg1 h1Q Qb6 Qg2 Qhf6 Nh2 Ng4 Qg3 Qfd6 Bc3 Bh8 Bg7 Rg2 Bh6 Bd4 Bg7 Rg1 Rc2 Rg2 e2 Ng1 e1Q Nge5 Qge3 Rg6 Q3g3 Ng4 Rd2 Bdf6 Qc1 Bd4 Qa4 Rc2 Re2 Rc4 Qb5+
6r1/2B1rr2/1p3B2/BNQ1R2R/1Q2NB1n/q1pNR2B/QR1q4/1K2n1kn w - - 0 1 legal: proof: f4 a5 e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 Kf7 bxa5 Be6 h3 Bh6 f6 Ke8 g3 Bf7 f5 Bf4 gxf4 g3 Qf3 Bh5 Qd1 Bg4 hxg4 Ra7 Be2 Ra6 Bf1 Ra8 a4 Kd7 d4 Kd6 Kd2 h5 Kc2 c5 f7 e5 f8R g2 f6 h4 f5 h3 g5 h2 g6 c4 g7 e4 a6 c3 a7 b6 f7 e3 f6 e2 a5 e1Q a6 Qh4 Bf4+ Kd7 d6 Kc6 d7 Kd5 Nf3 Ke4 d5 g1R d6 Qe8 d8B Qe6 d7 Nc6 Ra2 Rh6 Na3 Rh7 Ne1 Rg4 Bh3 Rb8 a8Q Qg5 a7 Nh6 g8N Rg1 Nd3 Qh5 Bdc7 Qef5 d8B Qf3 Qb1 Qf1 Rb2 Kf3 Nb5 Qc8 Re8 Rb7 f8Q Rf7 Re5 Qg4 Qc5 Re7 f7 Nf5 f8B Qg5 Nf6 Nh4 Ne4 Ke2 Qa2 Qa1 Qb4 Qh6 Qc8 Rg8 a8R Kf3 Re1 h1N Ra5 Ra7 Rh5 Ne5 Qf5 Rf7 Bde7 Qd6 Bf6 Re7 Re2 Qe1 Qg5 Qd2+ Kb1 Rf7 Qg1 Rb7 Qgc5 Re7 Ndf2 Nd3 Re5 Ne1 Nd3 Rg1 Rg2 Rf7 Rg3+ Ke2 B8e7 Rg2 Re3+ Kf1 Ra8 Ra7 Rh8 Kg1 Rhh5 Rg8 Qbc4 Qe6 Bb8 Ng3 Qd6 Rd7 Bc7 Nh1 Qdd5 Rgd8 Bb4 Qd6 Ba5 Qa3 Qdc5 Rg8 Q4b4 Rde7
N2KR1N1/RpQ5/Q2nBnn1/3R1N2/p3r2n/4BNn1/B3QrQ1/k3N1q1 w - - 0 1 illegal: No proof kernel
6NB/5B1N/rN4RR/1r1Q3b/2Nb4/1kBpB3/2Rpb1p1/1NQ1QnbK w - - 0 1 illegal: Other
2KB1qNr/2N1QBkN/R2nB1B1/2R1b3/4q3/b1r2QB1/Qq1Rbr2/4nN2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 a5 f4 h5 d4 c5 g4 a4 b4 c4 g6+ Kg7 b6 h4 b5 a3 g5 h3 b7 h2 d6 a2 Kd5 c3 b6 e4 d7 c2 Ke6 e3 d5 e2 d6 e1B Qf3 Nc6 b8N Na5 b7 Bc3 Ne2 Rh7 f6+ Kh8 f7 Nb3 f5 Be7 f8Q Qc7 f6 Rh5 g7+ Kh7 f7 Na5 Nd2 Qc6 g6+ Kh6 Nd4 Bh4 Qe7 Qc5 f8N Bf6 Ndc6 Nb3 Nh7 Bh4 Bd3 Qa7 Nf1+ Nd2 Na6 Rd5 b8Q Qf2 Qb1 Rg5 Nc7 Ba6 d8R Be5 d7 Nf6 g8B Rg2 g7 Ne8 Bg6 Nd6 B8f7 Be2 g8B Kg7 Rc8 Qc5 d8B Rf2 Kd7 Bhf6 Rg1 h1Q Rg2 Bh4 Bb2 c1R Bd4 Rc3 Qb2 Bef6 Be5 Bg3 Bf4 Be5 Qa3 Qh4 Qa6 Bh2 Bg3 Qe4 Be6+ Kh6 B8f7 Kg7 Rd1 a1Q Qa2 Qcb4 Rb1 Qa3 Rb6 Q1b2 Ra6 Bg1 Qh4 Qab4 Ne7 Qb8 Ng8 Bh2 Qf5 Nf3 Qe7 Ne1 Qf3 Q8b4 Nb5 Rb8 Rc5 Ra8 Nc7 Qb8 Bh4 Bhf4 Bg3 Be3 Rd5 Bc5 Rh2 Bb4 Rd2 Ba3 Rh5 Bf6 Rha5 Be5 Rc5 Q2b4 Ngf6 Qf5 Be8+ Kh8 Qc2 Qbf4 Qa2 Qh6 Bef7 Qb2 Qd3 Rb8 Qf3 Rb4 Ng8 Rh4 Ng5 Qe4 Bh7 Qf8 Bhg6 Nb5 Kc8 Kg7 Nh2 Rh6 Nf1 Rh8 Nh7 Nd6+
rr1R4/Q1Q1Bb2/4n2b/1b1n1QNk/3Q2N1/N1rRb2N/q3b1BK/2Q2R1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Kg3 Kf7 e4 Kg6 b4 c5 d4 a5 d6 h5 e6 f4+ Kh2 c4 g4 a4 d7 c3 e5 c2 d5 a3 e7 h4 e8Q+ Kh7 b6 h3 e6 f3 b7 a2 b5 f2 g6+ Kg7 g5 Na6 b8Q Qa5 d8Q Qd2 d6 Ra7 d7 Qe3 e7 Nh6 b6 Qe1 b7 Rh7 Qf7+ Kh8 e8B Qe7 Bg2 f1B Na3 Bb5 Qbc7 Nc5 b8Q Ne6 Qf5 Rb7 Qa7 Qf7 g7+ Kg8 Bb2 c1B Bf6 Be3 Be7 Rb8 Qdc1 Bca6 Rb1 a1R Rb3 Be2 Rc3 Bab5 Rd3 Qf6 Bh5 Qb2 Bhf3 Qa2 Bb7 Nf7 Bbe4 Ne5 Bb7 Rh6 Bbd5 Rg6 Bc6 Kh7 g8N Bh6 Nf6+ Kg7 Ng4 Nc4 Bcd5 Rf6 g6 Nb6 Bde4 Rf8 Bb7 Nd5 Bc6 Kg8 g7 Rb1 Ba8 Rb3 Bb7 Rc3 Bc6 Nf6 Bcf3 Kf7 g8N Kg7 Bb7 Nd5 N8f6 Rh8 Nh7 Rf8 Ng5 Rg8 Qf3 Kg6 Qf5+ Kh5 Bc6 Rg7 Qh8 Rgg8 d8R Re8 Qhd4 Ra8 Kg3 h2 N1h3 Rg8 Rg1 h1B Kh2 Re8 Bf1 Be4 Bg2 Rh8 Rf1 Rg8 Qf2 Bg6 Qf5 Bf7 Bh1 Nf6 Bcg2 Nd5 Rd6 Rgc8 Rd8 Rcb8
n3Q2R/1r2N1Bb/2n2Nr1/4bbQQ/3bBRqn/Nb4Nk/6N1/B3RB1K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f6 d4 Kf7 g4 Kg6 Kg2 c5 e4 a5 b4 h5 b6 h4 e6 a4 e5 c4 e7 c3 e8N c2 b7 a3 d6 a2 e6 Be7 b5 Rh5 b6 Qd7 d5 Rh6 Bb2 c1B Na3 Rh7 Ne2 Rf7 Ng3 Na6 b8B Bf4 b7 Bd8 e7 h3+ Kh2 Qe6 d7 Bb6 d8N Nh6 d6 Nf5 d7 Nc7 Bc3 Qc4 Ne6 Ra6 d8Q Na8 Bbe5 Bd7 Rb1 a1N b8R Nb3 Ba1 Na5 Rc1 Bc5 Rb4 Rd6 Qf3 Nc6 Re1 Bc8 Bed4 Rg7 Kg1 h2+ Kg2 Rd7 Bdc3 Bb8 Ra4 Rb7 Nf4+ Kh7 g6+ Kh6 Qd2 Kg5 Be5 Kh4 g5 Rg8 g7 Qe6 Rae4 Bd4 g6 Qd7 Nd6 Qe6 e8Q Bd7 Nc8 Bd6 Rg1 h1B+ Kh2 Bg2 Ne7 Bh3 Qde3 Bg4 Qh1 Bd1 Qhf3 Bb8 Rh1 Bb3 Qfe2 Bd6 Qb5 Bc7 Kg2+ Kg4 Rh8 Nh4+ Kh1 Qf5 Ng2+ Kh3 Qh6 Qg4 Rf4 Bde6 Qh5 Bd6 Bd3 Bd7 Be4 Bc8 Rf3 f5 Bf6 f4 Qbg5 Rf8 g8B B6e5 Rff1 Bf5 Bc4 Rf7 Rf2 Rh7 Bf1 Rh6 g7 Bh7 g8N Rg6 Bfd3 f3 Bd5 Bb6 Bg7 Bbd4 Rff1 f2 B5e4 Be6 Nf6 Bf5 Rg1 f1B Ba6 Bc4 Rgf1 Bb5 Rf4 Ba4 Bf1 Bb3
Bn1rB1RB/r6n/bqr4R/b2k1n1r/2N1N3/Bb2KQ2/4Q1R1/N2B1Q1N w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 g4 a5 f4 h5 b4 e5 d4 c5 g6+ Kf6 d6 a4 b6 a3 d7 h4 d5 h3 b7 e4 g7 e3 b5 h2 d6 a2 b6 c4 g5+ Kf7 g6+ Kf6 Bg2 c3 Nh3 c2 Nd2 Rh4 Nc4 Qc7 d8B+ Be7 d7 Nh6 g8B Ng4 g7 Nh6 Nf2 Ra5 Ba3 c1R Bf7 Na6 g8B Rh3 b8N Rh5 b7 Ra4 Nc6 Ra5 b8N Bb7 Be8 Ba8 Nb4 Bb7 Nc2 Nc5 Na6 Na4 Nc5 Ba6 Ba8 Qb6 Qd2 Nf7 Nce4+ Kg7 Bc7 Bb4 d8R Nc5 f6+ Kg6 Rg1+ Kf5 Nh1 Ke6 Rg2 Nd7 Be5 Nb8 Kf3 Rd1 Qe2 Rc5 Rb1 Rd6 Na1 Rcc6 f5+ Kd5 Bh7 Ba5 Rb5+ Qc5 Rb6 Ng5+ Kf4 Qb4 f7 Qb5 Bg6 Nh7 f8Q Qc5 Rc8 Rd8 f6 Qd4 f7 Qc5 Qf1 e2 Bh8 e1N Qe7 Nc2 f8Q Nd4 Ke3 Qd6 Q8f3 Qc7 Nb3 a1R Bf5 Ra2 Na1 Qd6 Bg4 Qb4 Qh3 Qc5 Bd1 Qd6 Nhg3 h1B Qg4 Qf6 Qf8 Qd6 Qge2 Qb4 Q8f3 Qc5 Rb2 Qb6 Rh2 Bg2 Nh1 Bh3 Rg2 Be6 Rg6 Bg8 Rh6 Bb5 Bd6 Rd7 Bg6 Ke6 Qd2 Bb4 Ne5 Raa7 Ra2 Bf7 Rg8 Ba5 Ba3 Ba6 Qdd3 Rd8 Rg2 Kd5 Qde2 Be6 Nc4 Bf5 Be8 Bg6 Ned2+ Be4 Q3f2 Bc2 Ne4 Bb3 Qff3 Nf5+
N1bR2R1/1Q1BQ1Br/1n4n1/1K1Q2b1/3N1N1k/B2Q3q/1nR2qr1/n1Bn3Q w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 h4+ Kf4 b4 e5 d4+ Ke4 f4 c5 b6 a5 b5 g5 f6 Kf5 b7 g4 h6 a4 h5 e4 f7 g3 d6 e3 b6 a3 d7 g2 h7 a2 d5 e2 d6 Kg4 h6 Ra6 f5 Qh4 d8R Kg3+ Kb5 e1N f6 c4 d7 c3 Nd2 c2 Nh3 g1N Nc4 Qh5+ Qd5 Bb4 f8Q Nc6 b8Q+ Qe5 f7 Na5 b7 Kh4 Nf4+ Kg5 Bh3 Rg6 Nb6 Qf5 Rh2 Ne2 Na8 Bc3 Qe7+ Bf6 f8B Kh4 Qbd6 Qe6 b8Q Bg5 Qbb7 Nc4 Qd3 Qf5+ Q6d5 Nb6 Rb1 a1N Rb2 Nf6 Rg2 Ng4 Rg3 Nf2 Bg4 Rhg8 h8Q Nd1 h7 Rh6 Ra2 Qf6 Bg7 Qf8 Ba3 c1Q Rc2 Qb1+ Bgb2 Qa2 Bc1 Rh5 Be6 Qf5 Rg2 Qh3 Rg1 Nb3 Qa1 Qb2 h8B Rh7 Bg7 Qa2 Qb1 Na1 Bf8 Ng2 Bd6 Nde3 Rc3 Nec4 Bda3 Bf6 Bcb2 Rh6 Re8 Rh7 d8N Rgg7 Bf5 Kg5 Nc6 Rg8 Nd4 Rg6 Nfe6+ Kh4 Rd8 Ngf4 Rg3 Rg8 Qbh1 Rg4 Bc1 Qd2 Q5e4 Nb2 Qed5 Rg6 Rc2 Nc3+ Ka6 Ncd1 Kb5 Qf2 Rg1 Rg3 Bh6 Rf3 Rgg8 Rg3 Bg7 Ng6 Nf4 Bg5 Bd7 Rg2
Q1BRR1N1/Q2qB3/3q2bN/r2Nk3/r2n4/2Bq2R1/nK1RB1R1/1Qb1rq2 w - - 0 1 illegal: No possible last move, all moves rejected
5bK1/1qB3qR/1rN1B1b1/R2n4/R1n1rQQ1/2N2QrR/BkB2N1R/3bb3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 a3 f7 h3 g6 c4 g5 a2 f5 h2 b6 c3 d6 c2 g7 Kb3 b7 Rh7 f6 Rh3 g6 Ra6 Qg4 Rh6 Bd3 Qc7 d8N Qb6 d7 Ra4 Nc3 Rh7 Nh3 Rh4 Bf4 c1R Nf2 Ne7 g8B Rg1 g7 Ra7 Bc2+ Kc4 b4 Ra6 b5 Rg3 Nc6 Rg2 d8R Rh8 Rd3 Rg1 Rh3 Nd7+ Kd6 e5 Ke6 e4 b8R e3 Ra8 Qa7 b6 e2 b7 e1B b8R Rb6 Rb7 Rg3 Rc7 Qb7 Ra5 Nd5 Ra4+ Bb4 f8Q Rh4 f7 Ne5+ Rd7 Qa7 Qd6 Qb7 Ra5 Ba3 f8Q Bc5 Bf7 Bb4 g8B Ba3 Bcg6 Kb3 Bc2+ Kb2 Qb8 Nc4 Bc7 Bb4 Qa8 Bc5 Qh6 Bf8 Qhf4 Nde3 Kf6 Nd5+ Kg6 Bg7 Re7 Bf8 Be6 Bd7 Rh7 Be8+ Kf5 Bg6+ Kg5 Be4 Ra4 Bf3 Kg6 Be2 Kf7 Bd1 Rg1 h1B Rg2 Bd2 Rgh2 Be4 Ra5 Be1 Ra4 Bc5 Kg7 Bg6 Qaf8 Bb4 Qff3 Bc5 Q8f4 Be7 Bgf7 Ba3 Kg8 Bf8 Rc1 a1Q Ra5 Qa3 Ra1 Qe7 R1a4 Rh5 Bb3 Re5 Ba2 Re2 Bf5 Qe5 Bc2 Re4 Be6 Qg7+
1NR1N3/R1Rr2Q1/1n2R2K/nqB2Br1/B2Q2b1/1qq1B3/Q1qn3B/b2Nk3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 g4 c5 g6 h5 Kg5 e5+ f6 a5 f4 c4 d6 a4 d7 c3 b6 c2 g7 e4 b7 h4 f5 h3 d5 a3 d6 h2 Be3 c1Q Bd3 a2 Nc3 Nc6 b8B Nge7 g8Q Na5 f7 Rh7 f6 Nb7 Nf3 Nd5 Nd4 Bg7 f8B Ra7 Nf5 Nb6 Re1 Qe8 d8R h1Q d7+ Nd6 f7 Bh8 Ng7 Qe6 Ne8 Bb7 Rc8 Nd5 d8R Ra5 Rc7 Qf1 Rdc8 Bg7 b3 Ka3 b4 Kb2 b5 Nc4 b6 Qc2 Bfc5 Nd2 f8Q Bd4 Bb5 Rd7 Ba4 Qb5 Qfg7 Ba8 b7 Nb6 Kh5 Qeb3 g5 Bf6 g6 Be5 Bf4 e3 Kh6 e2 Bh2 Bf6 Ba7 Bd4 b8N Bf3 Qd5 Bg4 Qa8 Nf1 Qd3 Nd2 Qg2 Bf6 Qd4 Be5 Qf7 Bf6 g7 Be5 g8B Bf6 Rg1 e1Q Qg7 Qg3 Rae1 a1N Nd1+ Kc1 Bh7 Qgc3 Re7 Be5 Re1 Bf6 R1e6 Be5 Nb2 Bf6 Bf5 Be5 Nd3+ Kd1 Nf2+ Ke1 Nd1 Qc3b2 Qgd5 Na8 Qf4 Q3d3 Bcg1 Qbc6 Bgb6 Nab3 Be3 Rd8 Bg6 Qf5 Bad4 Nb6 Rb7 Bf6 Rec7 Rd7 Qfe4 Rb5 Qc4 Na5 Qa2 Qbb3 Ra7 Qf1 Qd3 Rg5 Bf5 Q6c5 Qe4 Qfb5 Qd5 Qcb4 Bc5 Ba1 Qdd4 Q4c3
1K4QR/1RN1Bn2/N2q2bR/2rB4/2N3r1/Nr1Qn1NR/BQ3n1r/1nb1k3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 Ke5 h5 b4 c4 d4 e6 f4 h4 g4 h3 b6 h2 b5 a4 g6+ Kg7 b7 Kh6 d6 a3 b6 c3 d5 a2 g7 c2 f6 Kg6 g5 Rh5 f5+ Kh7 f7 Rh4 f6 Kg6 d7 Ra3 d6 Rc4 Qd3+ Kh5 g6 Kh4 Bg5+ Kg4 Bg2 c1R Bd5 Qc7 d8N R1c2 Ne2 Rc6 Ng3 Nh6 g8Q Bg7 f8N R6c5 Nc6 Rb3 Na5 Na6 b8N Nb4 b7 Qb6 d7 Nf7+ Kd4 Rd2 d8Q Bh6 g7 Qd6 Na3 e5+ Ke4 Rg2 Na6 Nc2 b8R Ne3 Qb6 Bb7 Rad1 a1N N5c4 Nac2 Ne6 Bc6 Rde1 Be8 Nec7 Kh3 Rc1 Rf2 Qb4 Kg2 Rb7 Rd2 Qbc3 Kf2 Qb2 Re2 Nab5 Na3 Rc3 Nb1 Nba3 Nd1+ Kf5 e4 Bh4 e3 Bg5 Qd8 Ke6 Rc2 Bh4 e2 Bg5 Ne3 Bh4 Nh8 f7 e1R Be7 Rg1 f8R+ Ke1 Ke5 Qb8 Kd6 Bg6 Kd7 Nf7 Rd8 Qa7 Kc8 Qb6 Kb8 Qb4 Qf8 Qb6 g8B Qd6 Qg7 Ng5 Bge6 Nf7 Rh8 Re2 Qg8 Rd2 Nf1 Rg4 Ng3+ Kf2 Rg1 h1N Rg2+ Ke1 Rh2 Bf4 R2h6 Rh2 Rc2 Rh5 Rh2 Nf2 Rh3 Ng2 Bf3 Bc1 Bed5 Ne3 Bd1 Rb4 Bb3 Rhh4 Ba2 Rb3 Qbc2 Rh5 Qb2 Qc6 Rh2 Qd7 Rg2 Rh1 Rgh2 Qd6 R2h3 Rh2
N4R1Q/k3N2r/1R2N1Bn/1R3NBr/2RQ4/n2qBn1r/rK2N3/1nQbb3 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 e5 f4 c5 d4 Kc7 Kd2 Kb7 Kc3 g5 b6 a5 h6 e4 d6 e3 d5 a4 d7 a3 d6 c4 f6 g4 b5 a2 h7 e2 f7 e1N h5 g3 h6 g2 f5 Qe7 d8B Ra6 d7 Qg5 f6 Qg3+ Bd3 Nf3 Rh4 Bd6 f8R Ra4 f7 Ka8 b7+ Ka7 b6+ Ka6 Bdg5 Rb4 d8Q Nc6 b8N+ Kb7 Nd2 Bc5 Ne2 g1R Qd4 Ka8 b7+ Ka7 Rb1 a1R Nb3 Rb5 Na6 Rh1 b8R Nce5 Bg6 Rh3 Kb2 Bg4 Rb6 Bb4 Bce3 Be1 Qc1 Rd5 Nc7 c3+ Kc2 Nc4 Na8 Qd6 Rb2 Ra4 Kb1 Na3+ Ka2 c2 Rb1 Ne7 Kb2 Rc5 Rb5 Qa6 Rb6 Qd3 Rb5 Nf5 Rb6 Rg8 h8N Rg7 h7 Ra6 Qf4 Ra4 Nbd4 Nh6 Nf5 Ra6 Qd4 Rca5 Qd1 c1N Qc2 Na2 Qc1 Nc3 Ka1 Ra4 Qd5 Rd4 R1b5 Ne4 Nc3 Bh5 Re8 Ng1 f8N Rb4 Ne6 Nd2 Bf7 Ndb1 Rf8 Bd1 Ng6 Nf3 h8Q Rh7 Ne2 Rf4 Rg4 Nc2+ Kb2 Ra1 Nge7 Nca3 Bg6 Rh5 Rh4 Rg4 Qd8 Rg3 Rc4 Rgh3 Qdd4 Ra2+
1Bq3NB/3RQ2n/2Q1b1k1/3R1r2/1KR1Q1qn/3B1qr1/1N1pRbR1/4N1Nb w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 e5 f4 d5 b4 h5 g4 a5 b6 e4 c6 a4 f6 e3 c7 h4 b7 a3 b5 a2 b6 e2 g6+ Ke6 g7 Kf7 f5 e1Q+ Nd2 h3 g5 h2 g6+ Ke8 f7+ Ke7 f6+ Ke6 Bb2 Kf5 Qf3+ Kg5 Rc1 a1Q Bd3 Ra6 Qe4 Nh6 g8R Qa2 g7 Bd7 c8N Qd1 Ndf3+ Kh5 Ne1 Qb1 Nd6 d4+ Kb4 Qc7 c4 Ra1 c5 Qa2 c6 Be8 Rc4 Be7 f8R Qg4 f7 Qcc8 c7 Nd7 b8R Bh4 b7 Nf6 Ra8 Rb1 b8B Bd7 Re8 Bf2 f8Q Nh7 Ra5+ Nf5 Qfe7 Be6 Rd5 Qa8 Rd8 Rd1 Rd7 Kg6 Re8 Rf8 g8N Ra1 Bc3 Ra3 Ba1 Qd8 c8Q Qc7 Qb7 Qc8 Qc6 Rf7 Rc2 Rf6 Nc4 Rf7 Nb2 Qab7+ Bb5 Rg3 Rc1 Qa8 Bd3 Rf6 Rc4 Rf8 Bf1 d3 Be2 d2 Bd3 Re3 Nh3 Rg3 Rg1 h1B Rg2 Qa7 Ng1 Qe3 Nd1 Qef3 Bh8 Rf6 Nb2 Kg5 R5d6 Nh4 Rdd4 Kh5 R4d5+ Rf5 Qe3 Qe2 Qf6 Bf7 Qf4 Qef3 Re2 Be6 Qe7 Kg6 Qd4 Qd8 Qe4 Qc8
2n2Nr1/1BR1R2B/1BBNQ1QK/q2R4/4pbb1/nq2Q2r/2BR3b/2N2kq1 w - - 0 1 illegal: No possible last move
2b1Q3/r1r2q1r/kp4Nn/1n1B1B1R/K1nR1QBN/b2Q4/1BQ3R1/NB3q2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 h5 Kc3 e5 Kb3 c5 f4 Kc7 g4 h4 a4 e4 d6+ Kc6 f6 e3 f7 e2 g6 e1N g5 h3 g7 h2 g6 b6 d7 Kb7 a6+ Ka7 f5 Nh6 g8R Nf3 f6 Nh4 a5 c4+ Ka4 c3 g7 c2 d5 Nf3 d6 Ng5 Bh3 Qc7 d8Q Ne4 d7 Ba3 f8Q Bc5 f7 Nf6 Bb2 c1R Qde8 Rh7 d8Q Bg4 Nd2 Rc2 Qd3 Rc1 Nb3 Bf5 Bg4 Qg3 Nf3 Qe5 Nh4 Qe6 Q1c2 Rg1 Rd1 Be3 Na1 Nfd7 Qfd6 Bc1 f8N Ne5 Nfg6 Nef7 Qf4 Nc6 Rd2 Rc8 Rg2 Ka8 a7 Kb7 a8B+ Ka7 a6 Rc7 Rf8 Nd6 g8B Nd4 Be4 Nc4 Rf6 Qe7 Rd6 Nb5 Rd4 Bc8 B8e6 Qf7 B6f5 Re1 Bd5 Ree7 Bde4 Bd2 Bd5 Bb4 Bde4 Ba3 Bd5 Nd2 Ba2 Nc4 Bb1 Ka8 a7 Kb7 a8B+ Ka6 Bd5 Ra7 Re1 h1Q Re5 Reb7 Bd7 Qc1 Rh5 Qf1 Bdf5 Rc7
3B3r/NpB2B2/Rq3BnQ/b1b3q1/1k5N/1rN5/QK1Q1nRN/2N2qRb w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kd7 d4 Kd6 Kd2 g5 Kc3 c5 f4 e5 h4 g4 h6 e4 h7 c4 h5 e3 f6 g3 a6 e2 f7 e1B+ Kb2 g2 a7 Qc7 a5 Nh6 f5 Na6 f6 Bf5 Bf4+ Kd7 d6 Kc6 d7 Kb5 d8B Bc8 d5 Rb8 a8R Qc6 d6 Bg4 d7 Bg7 f8Q Bf2 Ne2 g1Q Bfc7 Qb6 Ra2 Bh4 Nc1 Nf5 h6 Bh3 Qd2 Qg4 Rg1 Qc5 Nc3+ Kb4 f7 Rg8 h8N Be5 h7 Beg3 Qfh6 Be1 f8N Bg2 Nf7 Bh1 h8B Qg5 Bhf6 Qb6 Ng6 Ne7 Nfe5 Nc5 a6 Rh8 a7 Ne4 Nf3 Bhf2 Nh2 Bc5 Nh4 Ng6 Bg2 Nf2 Bd5 Re8 Bf7 Re3 Bde7 Rh8 d8N Qg2 Ra6 Qf1 Rb8 Rd3 a8Q Rf3 Ne6 Rh3 Nd4 Rd3 Rg8 Rg3 Bed8 Rd3 Ncb5+ c3+ Ka1 Rg3 Na7 Rd3 Ndb5 Rf3 Qd6 c2 Kb2 Ra3 Qdd2+ Rc3 Qd3 Bd6 Ra3 Ne5 Nb3 Bc5 R8g2 Ng6 Nc8 Bd2 Qa6 Be1 Nca7 c1Q+ Ka2 Qg5 Nc1 Bd2 Kb2 Be1 Nd6 Bd2 Ne4 Be1 Qd5 Bd2 Qe2 Re3 Ra6 Ra3 Qe3 Be1 Qa2 Bd2 Nc8 Kb5 Qf4 Ba5 Na7+ Kb4 Nc3+ Ne4 Qe3 Nf2 Qd2 Rb3+
b1Qr2rk/3KB2B/n1Qb2B1/Rr4qn/p1B1Q1Q1/R7/N1B4r/2N1RN1r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Ke3 Kf7 Kd4 Kg7 g4 h5 b4 a5 e4 c6 b6 a4 e6 h4 Ke5 c5 d4 f4 b5 c4 g6 f3 b7 f2 g5 c3 e7 c2 e8B h3 d6 h2 d7 Be7 Ke6 Rh3 b6 Rb3 e5 Kh8 d5 Ra7 d6 Bf8 g7+ Kh7 Qg4 Nh6 g8B+ Kh8 g6 Ra3 Ne2 Qg5 Bh7 Rb3 Ba3 c1R Nd2 Rc6 Nc1 Re3 Bc4 Ra8 Re1 h1R Nf1 Na6 b8Q Rd3 b7 Rdh3 Qc7 Rh4 b8R R1h3 Rb5 Kg7 Ra5 Rb6 Qc6 Bb7 d8N Nc7+ Kd7 Kh8 e6 Nd5 e7 Rb2 Bb4 Nf4 Ra3 Nh5 Qce4 Rc3 Nc6 Nf7 Bb3 Nd8 Bc2 Rb1 Bc5 Rc4 Nb4 Nc6 Nba2 Rb5 Bf7 Rh2 e8Q Rd4 Qc8 Nb4 Qcc6 Kg7 Be8 Na6 Bb4 Kh6 g7 Rd2 g8B Kg7 Bgf7 Kh8 Bc4 Rc8 Beg6 Ba8 Ke6 Be7 d7 Rg8 d8Q Bd6 Kd7 Rdd5 Qdc8 Rd2 Ng3 f1R Bc5 Rfh1 Nf1 Rdf2 Bb4 Rff8 Bc5 Bf4 Be7 Bd6 Rg3 Re8 Ra3 Rd8+
nk1n3n/N1Rrq2b/3RnBQ1/2BpbB2/2K1R2R/B2rQ2Q/2n1B3/2N2N2 w - - 0 1 illegal: No possible last move
1Bkn4/Q1N5/3RN2b/Q1r1N1r1/1rQN3p/1b2R1bR/2N2Rn1/1Brq2BK w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 c5 d4 e5 g4 a5 Kg2 h5 b4 h4 g6 a4 b6 c4 f6 e4 b5 e3 b7 e2 g7 e1B d6 c3 f7 a3 d5 c2 b6 a2 g5 Qf6 g6 Ba5 f5 Bc3 Qe1 Ne7 g8N Na6 b8B Qg7 b7 Nc6 f6 Na7 Rh3 Be7 f8N+ Kd8 f7 Rh5 d7 Rh7 Nh6 Qf6 g7 Nb4 g8Q Bb2 Be3 c1R Ng4 Ba3 Kh1 Rc5 Bd3 Bd6 Ne2 Na6 Nd4 Bb4 Ne5 Bc3 Bg1 Nb4 Na3 Qf1 Bb1 Nac6 Nac2 Raa5 Qf2 Nd3 Nfe6+ Ke7 d8R Bd2 f8N Qd1 Nc7 Bh6 Nfe6 Nf4 Rf8 Bd7 Qd2 Ng2 Rf2 Nd8 Re3 Rab5 Qa5 Rb4 Qg4 Bc6 Qe2 Ba4 Qc4 Bb3 Rh3 Bf4 Re3 Rh5 Rh3 Kf6 Re3 Bf8 d6 Rg5 d7 Ke7 Rh3 Bh6 Re3 Nc6 d8R Bg3 Rd6 Nd8 Ba7 Ba4 b8Q Bb3 Qbb6 Rf5 Bb8 Rg5 Nf7 Rce5 Qba7 Rc5 Ra6 Kd7 Ne5+ Kc8 Rd6 Bf4 Rh3 Bg3 Nd5 Rb6 Ndc7 Bf4 Re3 Ba4 Re1 Rb3 Re4 Rc3 Na3 Rc1 Bd3 Bh2 Rb1 a1R Rb3 Ra2 Bb1 Rb2 Rh3 Bg3 Nac2 Rb4 Re3 Bb3
Q4bkr/5nN1/1K3nr1/2B2B2/bB1pBN1R/B3nR2/R1N2qrQ/5QrR w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 e5 Kc4 a5 f4 g5 b4 g4 h4 d6 f6 g3 h6 g2 b6 d5+ Kb5 e4 c4 d4 f5 a4 h5 e3 h7 e2 c6 e1R b7 a3 c5 a2 c7 Qd5 h6 Re3 Bd3 Re2 Ba3 Qf3 c6 Re7 Qf1 Qe2 Kb6 Bg7 b5 Ra4 Nh3 g1N Nf4 Qf3 Be4 Na6 b8Q Nh3 Qa8 Be6 c8N Nc5 c7 Kf8 f7 Rb4 Nd6+ Re8 c8B Re7 Ne8 Be5 Ng7 Rb3 Bb4 Qh5 Na3 Qe2 Nc2 Ng5 Rh3 Qd2 Rf3 Nd3 Bc5 Nf6 Ba3 Rg8 h8R Rb2 h7 Bd6 Bd7+ Re8 Bb4 Ke7 f8B+ Kf7 Ba3 Bb4 Bc5 Nf2 Bc8 Nd1 Bd7 Nh5 f6 Bb3 Bdf5 Ba4 Rb1 Rb3 Rb2 a1R Ra2 Rbb1 Kc7 Ref8 b6 Qf2 b7 Rb2 b8Q Ne3 Kb6 Rc1 Nd5 Rd8 Qh2 Rde8 Nf4 Rc8 Ne8 Rg6 Ng7 Rd1 Rd8 Re1 h8R Rc1 Rh7 Re1 Rd7+ Kg8 Ra7 Nf7 Ra5 Ng3 Rh4 Nh5 Rb5 Bc3 Rb3 Bb4 Rd3 Reb1 Rd1 Kh7 Qfh1 Qg2 Be7 Nh6 Na1 Rh8 Re1 Rd2 Nc2 Rc1 Bf8 Kg8 Q1g1 Qe2 Qgf2 Rcd1 Rh1 Rdg1 Qfg2 Qe1 Qf1 Rdg2 Bd6+ Kh7 f7 Nf6 f8B Qf2 Bb8 Be7 Bbd6 Kg8 Bdb4 Nf7 Qb8 Bd6 Qa8 Be5 Bfc5+ Bb8 Ne8 Bd6 Ng7+ Bf8
1n1q1nB1/Kn1R4/RBQ1r3/Q1r1N3/2p2n2/1QB4b/1RNB1k1b/1Q3BNr w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 h4 g4 a4 b6 c6 f6 a3 g6 a2 g7 e6 b5 h3 f7 h2 g5 Nf6 g8Q Ra5 f5 Rh6 b7 Ra8 b6 Nh5 f6 Qe8 g6 Ng7 Qf3 Na6 b8Q+ Nc7 b7 Qd8 Na3 Qe7 Nc2 Nh5 g7 Ra5 d3 Rc5 Bd2 Kd7 d6 Qd8 Qe4 Be7 f8B Nf4 f7 Na6 Qgh7 Ng6 g8B Bg5 Bg7 Bf4 f8Q Bg3 Qff5 Nf8 Rb1 a1N Rb2 Rf6 Qh6 Rg6 Qed5 Rf6 Qb3 Rg6 Qa7 Nb8 Qa5 Bf4 Qe4 Bg3 Qe1 Bf4 Qb1 e5+ Ke4 Rf6 d4 Re6 d5 Bg3 Ke3 e4 Kd4 e3 Bh8 e2 Bg7 Ke8 d7+ Ke7 Qg6 Kd6 Bh8 Qe8 d8B e1N Bb6 Ng2 Qh6 Nf4 Qf6 Na6 b8N Qd8 Nd7 Nb8 Ne5 Bd7 Ne2 Bc8 Rg1 h1R Rg2 Qd7 Ng1 Bh2 Rg7 Qd8 Ra7 Rb5 Ra6 c5+ Kc3 c4 Kd4 Rc5 Qg6 Rf6 Qe8 Bh3 Bg7 Rc7 Qeb5 Re6 Qc6+ Ke7 Kc5 Rc8 Bh6 Kf6 d6 Kf5 Bg7 Kg5 d7 Kh4 Nef3+ Kg3 Bgc3 Kf2 Ne5 Qh4 d8R Qf6 Rd3 Qd8 Rd7 Rc7 Q3a2 Nb3+ Kb5+ Nc5 Qb3 Rc8 Bc7 Qf6 Kb6 Qd8 Ka7 Nb7 Bb6+ Kg3 Qd6 Rc5 Qc6 Kf2
1Q1RnrNb/2BNq1b1/1KQnn2Q/1p3n2/4RrQR/1N1k2B1/5Q1B/5b1B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 h4 b5 d4 e5+ d6 g5 a4 c6 f4 g4 f6 g3 h6 g2 h7 Qe7 h5 Qg7 f7 Qg5 a6 Nh6 a7 Be7 f8Q Ng4 f5 Be6 d5 Na6+ Kb6 c5 f6 c4 a5 c3 h6 c2 d7 Nc7 d8B Bg8 a6 Nh2 d6 Qg6 d7 Bf7 Nf3 g1N Bf4 c1B Nfd2+ Kd4 Bg3 e4 Nb3+ Ke3 Nc3 Qh5 Ra4 Ng4 Rh4 Ne6 Bg2 Bb2 Bdc7 Nf3 d8R Nd2 Nd5+ Kd3 Bh1 e3 Re4 e2 Qg1 Bd6 Ne7 e1N Ng8 Qg5 Qg7 Ng2 Qf2 Bh5 f7 Nf6 f8N Ne3 Nd7 Nf5 Qg6 Rc8 a8Q Be2 a7 Bf1 Qb8 Bf8 a8Q Ne8 Qc6 Qe7 Qg4 Bfg7 Ngf6 Rf8 h8B Bc1 h7 Bb2 Ng8 Nc4+ Ka6 Ne5 Kb6 Nf7 Bh2 N7d6 Bg3 Bh6 Bhe5 Bg7 h8Q Ba1 Qh7 Bh8 Bef4 Bag7 Qh6 Rf6 Bh2 Rf7 Bfg3 Rf8 Qa7 Ra8 Qb8 Ra4 Re5 Rf4 Re1 Ng5 Re4 Ne6
n1R2Q2/NqB1bB1K/1R2R2p/2kN3N/1NBbnQ2/1Q1b3r/1B6/n2nr2B w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 a5 Kh5 c5 d4 e5 b4 a4 f4 c4 g4 a3 f6 e4 g6 c3 f5 c2 f7 e3 g5 a2 f6 h6 b6 e2 b7 e1B b5 Bg7 f8R Bh4 b6 Na6 b8Q+ Nc7 b7 Bd7 f7 Be1 Nh3 Bc8 Bc4 Bg3 Nf4 Ra5 Nc3 Bf2 Rb1 a1N Re1 Be5 g7 Bg1 Kg6 Qe7 Nh5 Qd7 Bb2 c1N Qb3 Nf6 g8B Ng4 Rd8 Rh7 f8Q+ Re7 Bf7 Be3 Kh7 B5f4 g6 Be5 g7 Nc2 g8B Rc5 Re8 Qb5 Re2 Be6 Rc8 Kd7 d6 Kc6 d5+ Kb6 d7 Bf6 d8B Na1 d6 Bed4 d7 Nf2 Nd5+ Kc6 Re3 Bg4 Re5 Be2 Re4 Kd6 Re3 Rc6 Re5 Kc5 Re6 Na8 Qf4 Ncd3 b8N Qb6 Bc7 Nd1 d8N Rd6 Ndc6 Qb7 Ncb4 N3f2 N8c6 Ne4 Na7 Bd3 Rc1 Ra6 Rc2 Rc6 Rg2 Ra6 Rg6 Ra3 Rb6 Bg5 Rgd6 Re5 Re6+ Be7 Be8 Rg5 Bgf7 Rg1 Bc6 Be2 Qa2 Rh3 Qb3 Re1 Nc3 Nd2 Bh1 Ne4 Ncd5 Bd3
kNQ1B2r/1b3b2/B1RpB1RB/q2r3n/r1R3Kb/3NQ1n1/4pNBQ/1R6 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 a5 Kf3 e5 b4 h5 c4 a4 g4 h4 c6 h3 c7 a3 c5 a2 g6 h2 f6 Ra7 f7+ Ke7 g5 e4+ Kg4 e3 f4 e2 b6 Ra8 f5 Ra3 b5 Re3 c6 Rhh3 b7 Rh6 b6 Re5 g7 Rh5 g6 Rh6 f6+ Ke6 Qd2 Rh3 Nc3 Rd5 Ne4 Bc5 f8Q Bf2 f7 Bg3 Rb1 a1R Nf3 Ra7 Ne5 Raa5 Bg2 Ra4 Qe3 Rdd4 Rg1 Kd5 Nd3 Ne7 g8B h1B g7 Na6 b8Q Ra5 b7 Rb4 Qe8 Nc5 f8R+ Ne6 Rf6 Be1 Bf7 Rba4 g8B Nf5 Qf8 Rh2 Be8 Ng3 Rf4 Rh8 Nef2+ Ne4 Qh6 d6 Qh2 Bd7 c8R Qc7 Bf1 Ng3 Rc4 Rb5 Bgf7 Qa5 c7 Rc5 Bd2 Kc6 Qa8 Nf4+ Be6 Bd5 Bg2 Nfh5 Bc1 Qb5 b8N+ Kb6 Qd4 B7c6 Bh6 Bb7 Qe3 Qb4 Rd8 Qb5 c8B Qb4 Rd7 Qb5 Rc7 Qb4 B6d7 Bf7 Bb5 Qa5 Be6 Bc3 Rc8 Bf6 Rc7 Bh4 Ba6+ Qb5 Nc6 Qb4 Qc8 Qb5 Nb8 Ka7 Rc6 Qa5 Rd4 Rd5 Rdc4+ Ka8 Be4 Ng7 Kh3 Nh1 Rg6 Nh5 Kg4 N1g3 Bh1 Qc3 Bg2 Qa5
BN2Bk1B/1r2p2r/4n2N/2R1B2K/5N1N/4bB1Q/QqR1R1np/rb4Qb w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Kf3 a5 Kg4 d4 b4 d3 f4 h6 c4 d2 b6 a4 b5 a3 c6 a2 g6 Bb7 c7 Nc6 c8B Ra3 f6 Ra5 c5 Ra3 f5 Qc7 g7 Nb4 f7+ Kd8 c6 Rc3 f6 Rc5 Nc3 Re5 Rh2 Rc5 Nd5 Qb8 Bd7 Bc8 b7 Nc2 b6 Qd6 b8B Bb7 Be8 Ba8 b7 Qg3+ Kh5 Qe1 g4 Rb5 g5 Qe4 g6 Nb4 Re2 Qb1 Nf3 Rc5 Bg2 Qb3 Qg1 d1B Nh4 Nc2 Bb2 Rc3 Rc1 a1R Be5 Qb5 b8N Ne1 Rc2 Rh7 Bf3 Rb3 Nf4 Ng2 Rc5 Bc2 c7+ Kc8 Bbd4 Bb1 Bc3 Qb4 Bcd4 Qd2 Bb2 Bae4 Bbd4 Qb2 Rcc2 Kb7 c8R Rb5 R8c3 Bc6 Rc5 Kc8 Kg4 h5+ Kg5 Nh6 g8N Kd8 g7 Nf5 Nh6 Rb3 g8B Bg7 f8Q Rb7 f7 Bd5 Bc3 Nd4 Kg6 Bf6 Qg7 Ne6 f8Q Bc6 Qff7 Bg5 Qgf6 Be4+ Qf5 Bc6 Qh3 Bd5 N4f5 h4 Kh5 Bc6 Bh8 Bd5 Bce5 Be4 Qhh2 h3 Nh4 Bc6 Qg3 h2 Qh3 Bd5 Nd3 Be3 Nf4 Ng5 Qfe6 Bc6 Qa2 Ne6 Bg6 Bd5 Bge4 Ke8 Bf7+ Kf8 Be8 Rc7 Bc6 Ra7 Ba8 Rb7 Bg6 Be4 Be8 Ne1 Bg4 Bh1 Bf3 Ng2
n3rQ2/bp4n1/2R1N1B1/kbN1N3/1R1N2RR/KQ3Q1N/2pr1B2/nqr4B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 e5 Kc3 h5 Kb3 c5 a4 Kc7 f4 h4 g4 e4 a6 Kb6 a7 h3 g6 e3 a5+ Kc7 f6 h2 f5 e2 g7 e1N a6 Kb6 d6 c4+ Ka3 c3 d5 c2 g5 Nc6 f7 Nce7 g6 Nd3 d7 Nc6+ d6 Nde5 f6 Nd3 Nd2 Nh6 g8B Kb5 g7 Qe8 d8N Ka5 Bh7 Bf5 g8R Nce5 Qf3 Be6 Rb1 Ba2 Rg4 Nb2 Nc6+ Kb6 Nh3 Qe6 Ne4 Qc4 Be3+ Kb5 Nc5 Nf5 d7 Be7 f8N Bb3 d8N Ba4 f7 Nd3 Nde6 Ng7 Nd7 Rae8 a8R Nc1 f8Q Nb3 a7 Na1 Ncd4+ Ka5 Bg2 Bb5 Bg6 Na4 Rc8 Qf1 Ne5 Nb6 Rc6 Na8 Rb4 Qb1 Bf2 Bg5 Qb3 Be3 Qf3 Rh6 Rd1 Rhh8 Bh1 Rd8 Rdg1 Rhe8 Rh4 Rd6 Rg5 Rdd8 Bg2 h1R Rgg4 Rc1 Bh1 Rd5 Nf5 Rd2 Nfd4 Nb6 a8Q+ Ba6 Qb8 Bb5 Qd6 Na8 Qdf8 Bf4 Ned3 Bb8 Ne5 Ba7
k2BqBb1/1n1Q2K1/qR3qN1/1NNn4/1BrrR3/7Q/ppBQ1R2/1Qb1B3 w - - 0 1 illegal: No proof kernel
BR1qr2R/rB2b1NK/4Q3/2Qp1n1N/1q6/b1QpNk2/1N3n1R/3bBQ1N w - - 0 1 illegal: Other
b3N2N/B3knQq/1R3NQ1/2pRnQ1b/K1qr4/2r5/BbpQQ3/1N1B3R w - - 0 1 illegal: Other
2kN4/B3K1RR/q2B2rN/1p2q3/1QnRNpn1/Q6Q/B2bq1b1/B1N2rB1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 Ke4 c5 Kf5 b5 d4 f6 e4 c4 a4 c3 h4 c2 a6 g4 e6+ Kc7 a7 g3 a5 g2 h6 Qe8 h5 Ba3 a6 Bd7 h7 Nc6 h6 Rd8 a8R Bb2 e5 Na7 d6+ Kb6 d5 Rb8 Qd3 Bc6 d7 Kc7 d8N Rb7 d6+ Kb6 d7 Kc7 e7 Ba3 Ke6 f5 Nc3 f4 Qh3 Be4 Bc4 Rb8 Nge2 g1Q Ba2 Nc6 a7 Bb4 Be3 Bd3 Ne4 Qb1 Nc1 Bc5 Bg1 Qf8 e8Q Be3 Qe7 Rc8 Qb4 Bf2 Rb8 Bb6 a8Q Bf1 Qaa3 Ba5 Ra8 Be2 Ra7+ Kb8 Rh2 Bc7 Rg2 Bh5 Rg7 Nf6 Ra4 Rg8 h8B Bb6 h7 Qe8+ Kd6 Bd4 e6 Ne5 e7 Qb2 Rb1 Qg6 e8N Nc4+ Ke7 Ng4 N8d6 Be3 Nf5 Qa6 Nh6 Qd4 Rb3 Bd2 Rd3 Qe3 Rd4 Qe2 Ra5 Qb6 Ra7 Qa6 Ndf7 Rc5 d8B Kc8 Bb6 Rg5 Rad7 Rg6 Ba7 Rd8 Rb7 Rd5 Nd8 Rc5 Nb3 c1Q Rbd7 Qa1 Nc1 Rc7 Rd3 Qe3 Rg8 Qb2 Ke8 Qf2 Ne2 Nh2 Be5 Na5 h8B Rc1 Bd6 Bf3 Rh7+ Ng4 Ke7 Rf1 Nc1 Nc4 Bhe5 Qe2 Rgg7 Qd4 Bf6 Qc5 Ba1 Bg2 Rd4 Qe5+
R4R1r/3K1bBN/r4Npb/R3Rp2/NR2N1Q1/5q1B/nB2QQn1/1k3n1q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 a5 Kf4 c5 h4 f5 d4 g6 b4 a4 e4 a3 h6 c4 e6 Kd6 b6 c3 h7 a2 h5 c2 b7 Bd7 h6 Qe8 b5 Qc8 b6 Ra5 e5+ Ke7 d6+ Ke8 e7 Kf7 e8N Ke6 d5+ Kf7 Nh3 Bc6 d7 Rb5 d8R Ba3 d6 Ke6 d7 Be4 Nd2 Kd5 e6 Kd4 e7 Kc3 Nf6 Rb4 Ke5 Bd3 Ke6 Rb2 e8Q Bf8 Ng5 Be2 Bh3 Bg7 Re1 Na6 b8Q Ne7 b7 Rb3 Qh2 Rf8 h8R Nb4 b8R Ra3 h7 Nd3 Qf2 Nd5 Rb5 Qc7 Ra8 Ne3 d8N Bh6 Nb7 Qg3 Kd7 Nf4 Nc5 Bc4 Qg4 Qf3 Rg8 Ra6 h8B Bf7 Bg7 Nfg2 Ngh7 Qe2 Rab1 a1Q Ra5 Qf3 Na4+ Kd3 Ba3 c1N Rb4 Kc2 Bb2 Na2 Re2 Qg1 Qe5 Re8 Qb5 Nf1 Re5 Rb8 Nde4+ Kb1 Qbe2 Qh1 Rd8 Rbb6 Rdc8 Re6 Rcb8 Re8 Rd8 Rg8 Rf8 Rh8
1BB4b/1bBQNnk1/1p6/R6R/2KN1R1r/r1N3pQ/2n1rN2/1qRR1Q1q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kd3 e5 a4 c5 f4 g5 h4 b6 h6 g4 h5 g3 a6 e4+ Kc4 e3 d4 e2 f6 e1R d6 Be6+ d5 Qc8 d7 Bd6 d8B Bf5 h7 Re7 a5 Re1 h6 Qd7 a7 Re5 a6 Bc2 f5 Qe7 Bh3 Re2 Qf1 Re3 Nc3 Re5 Bc7 Qd7 Bf4 Kf8 f7 Re1 Rc1 Be7 d6 Qc8 d7 Bh4 d8R+ Re8 Rdd1 Ke7 f8N Kf6 Ne6 Bb1 Nd4 Kf7 f6 Qd8 Bc8 Nc6 Nh3 Be4 Nf2 Nb4 Bfd6 Kg6 f7 Bb7 f8R Nc2 Rf4 Bf6 Rh5 Re2 Bb8 Bg7 Be5 Qh4 Bbc7 Rb8 a8Q Qh1 Qa7 Ra8 Bb8 Bg2 Qd7 Bb7 Bec7 Be5 Kb5 c4 a7 Bf6 Na2 c3 Kc4 Nb4 Nh3 c2 Nf2 Ne7 Nc3 Nec6 Nfe4 Nd8 Nf2 Rhe8 h8Q Nf7 h7 R8e4 Qhe8 Kg7 h8N Be5 Ng6 Bf6 Ne7 Be5 Ra1 c1Q Qdh3 Nc2 Qed7 Qb2 Rac1 Qb1 Rf6 Rh4 Rf4 Kf8 Bd6 Bh8 Bbc7 Rb8 a8R Kg7 Raa5 Ra8 Bb8 Ra7 Bdc7 Ra6 Rad5 Ra2 Ra5 Ra3
nkqB2QR/N6b/p1Qr1N2/rB1R3Q/1Qqb1B2/B7/nQn3Kp/3N1R2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 c5 b4 Kc7 d4 e5 g4 h5 g6 h4 b6+ Kb7 d6 e4 g5 a6 d5 c4 g7 h3 f6 c3 g6 c2 d7 Ne7 g8N Qe8 d8R Be6 f7 Nbc6 g7 Rc8 d6 Bb3 f5 Bd5 f6 Ba2 b5 Kb8 b7 Bb3 d7 Be6 Ne2 Rh6 Na3 Ng6 Nc3 Be7 f8B Nge5 f7 Bf6 Bf4 c1Q Bc5 Kc7 f8Q Qg6 Qe8 Nb4 b6+ Kc6 b8Q h2 b7 Qf5 Kg2 e3 Qdh5 e2 Nab5 Nc4 Nd1 Nb6 Ra5 Na2 Ba3 Na8 Na7+ Kb6 Qe5 Rc5 Qb2+ Rb5 Rb8 Qfc5 Rd8 Bf5 Rg1 Qc7 b8Q+ Qb7+ Qe4 Bh7 Rf8 Be5 d8B+ Qc7 Re8 Rd6 Nf6 Bc3 Rh8 e1N+ Kf2 Be5 g8Q Nc2 Kg2 Bc3 Qc8 Qc6 Qd7 Kb7 Bc4 Qd5 Qc6+ Kb8 Rf1 Qc8 Bd3 Qb3 Qb4 Bd4 Bc4 Rb7 Rd5 Rb5 Q4c3 Ra5 Bb5 Qa4 Q3c4 Qb3 Qb4 Qc4
3kn1RN/q7/p1Q2bBr/NpB1Rn2/B4NK1/3bNR1n/3Q1q1Q/1Q4Qr w - - 0 1 illegal: No proof kernel
3R4/p1R5/BNnrqr1R/1Qb1pBk1/5n2/q4Qr1/3B2QR/BNBbN1K1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 Kf2 h5 g4 c5 b4 e6 d4 h4 d6 c4 d7 h3 f6 Kg6 d5 h2 b6 c3 d6 c2 f7 Nf6 b5 Nh5 f5+ Kg7 b7 Nf6 b6 Ng8 f6+ Kg6 Ra6 Ne7 Qf3 Bg7 f8N+ Kf7 g6+ Kg8 g5 Qe8 d8B Rh5 f7+ Kh8 d7 Nec6 Bf6 Rh3 d8R Rh6 Nd7 Rh3 f8B Ne7 Ba1 Ng8 Bb4 e5 Bbd2 Nc6 b8Q Nd4 b7 Ne7 Nb6 Bf8 g7+ Kh7 g8B+ Kg6 Be6 Ndc6 Rd7 Qf7 Rc7 Nd5 Ra2 Qg8 Ba6 Nf4 Kf1 Rg3 Bh3 Bd7 Bf5+ Kg7 g6 Kf6 g7 Bc5 Rb2 Qe6 g8Q Be8 Qgg4 Bh5 Qh3 Bg4 Qhg2 Kg5 Qe8 Rc8 b8R Rd8 Rbc8 Rd6 Rd8 Nb4 Qb5 Nc6 Qfd3 Bd1 Nf3+ Kh5 Ne1 Kg5 Rg1 h1R Qdf3 Rh6 Rh1 Rf6 Rh6 Bb4 Kg1 Bc5+ Be3 Rd5 Bd2 c1Q Rc2 Qa3 Bc1 Bf8 Bed2 Rd6 Rch7 Nb4 Rcc7 Nc6 Rh8 Rd4 Rh2 Bc5 R8h6 Rd6+
r2QB2Q/B1Q2n1N/2rNk3/2b1rp2/K2p2B1/1nB4N/1R2q1bR/2BrR2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 f5 Kb4 a5+ Ka4 g5 e4 d5 h4 g4 b4 g3 c4 g2 c6 Nd7 c5 Kf7 e6+ Kf6 b6 Qe7 b5 Nb8 c7 Qf7 c6 Ke7 b7 Kd6 e7 Qg6 e8N+ Ke6 b6 Qh6 e5 Na6 b8R Ke7 e6 Bb7 c8Q Nb4 c7 Qg6 h6 Qf6 h7 Qe5 h5 Nc2 h6 Qh2 Nd6 Ba6 b7 Qg3 Be2 Kf6 e7 Qf3 e8B Nd4 Nh3 g1R Nd2 Nb3 Qd8+ Ke6 N2e4 Rg6 Rh2 Qe3 Bg4 Bf1 Nf6 Bg2 Qh1 Qe2 Nde4 Bc5 Nd6 Rg7 Rb1 Re7 Rb2 Ra6 Ra8 Rb6 b8B Rc6 Ba7 Bd4 Ka3 a4 Kb4 a3 Ka4 a2 c8Q+ Ke5 Qb7 Bc5 Qbc7 Ke6 Rb8 Ba3 Rb4 a1R Rd4 Rb1 Rd1 Bb4 Re1 Bc5 Qa5 Rb7 Qac7 Rb5 Be3 Rd1 Bd2 Ne7 Bc1 Rf8 h8B Ng6 h7 Ne5 Bg7 Nf7 h8Q Rg8 Nh7 d4 Bgh6 Rb8 Bhd2 Ra8 Bc3 Rg7 Bf3 Rg3 Bh5 Re3 Bg4 Re5
2n3Nk/8/3QK1R1/2NQpQ2/bpp1R1n1/r4BNr/1N1N1B1q/2RRB1br w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 g5 Kd4 Kg7 Ke5 b5 a4 c5 f4 g4 h4 e6 d4 g3 a6 b4 f6+ Kh7 d6 c4 a7 g2 f5 Qe8 d5 Qc6 h6 Qc5 h5 Bb7 d7 Ba6 d8N Qf2 d6 Qc5+ Qd5 Qb5 d7 Qb7 f7 Bc5 f8B Be7 f6 Bb5 f7 Bh4 a5 Qc8 a6 Bc6 Nd2 Bb5 Bc5 Bf2 f8Q Be1 Be2 Qb7 Bf3 Ne7 Bf2 Qc6 Ne2 g1R Nb7 Qb6 d8Q Qa5 Ng3 Qa3 Nc5 Nc8 Qd8d6 Qa2 Qf5+ Kg8 h7+ Kg7 Rh4 Qa4 Re4 Re8 h8N Qa5 h6+ Kg8 h7+ Kg7 Nf7 Rf1 h8R Bd7 Nh6 Qa2 Ng8 Nb6 Rh6 Ba4 Rg6+ Kh8 Bb2 Rg1 Rc1 Nc8 Bc3 Rh1 Kf6 e5 Rd1 Rf8+ Ke6 Nd7 Rc1 Rb8 a8R Nf6 a7 Ng4 Rd1 Rb7 Rc1 Rbf7 Rb8 Rfh7 a8N Rd8 Nb6 R7h3 Rb7 Rf8 Rd7 Rf7 Rd8 Ra7 Rd7 Bb5 Rd8 Ra3 Nba4 Bc6 Nb2 Ba4 Ndb3 Bd2 Rd7 Be3 Bce1 Qb1 Rd8 Qc2 Rd7 Qe2 Nd2 Bd4 Be3 Qg2 B3f2 Qh2 Ra7 Rh4 Be3 Rh3 Rd1 Ra1 Bg1 Bb3 Ra3 Ba4 Rc3 Ra2 Rcc1 Ra3 Be3 Bb5 Bh6 Bg1 Be3 Bc6 B3f2 Ba4
2k2q2/Q1NNR1N1/4rQ2/bp1b1n2/p4R1N/1rpNn1R1/QB1B2BQ/3K3b w - - 0 1 illegal: No proof kernel
NNR3Rb/bq6/K1p1Bknp/1B2R2r/2r1b3/5p1B/1BQQ1n2/QN3R1R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Ke7 Kd2 a5 Kd3 f5 Kc4 a4 e4 h6 g4 a3 b4 f4 g6 f3 e6 a2 g5 Nd7 d6+ Ke8 d5 Ngf6 e5 Ng4 b6 Nf2 Kb5 Nh3 b7 Ra3 b8N Be7 g7 Rg8 g6 Nb6 Ne2 Ra6 Qc2 Bf8 e7 Na8 Nec3 Ra4 Bb2 Ng1 Bh3 Ra3 Na4 Bd7+ Ka6 Re3 b5 Rb3 b6 Bf5 b7 Rd3 Nb6 Rh8 g8R Rc3 g7 Kf7 e8R Be4 e6+ Kg6 d7 Rc4 d6 Qc8 d8Q Be7 d7 Bc5 e7 Kg5 Nc3 Kf6 Rf1 a1B Nb1+ Bd4 Nc6 Qb8 Qc8 Rc5 d8Q Rh5 Qcd7 Qc8 Nb8 Rh7 Qda4 Qd7 Bg2 Nh3 Qa2 Nf2 Bh3 Qc6 Qdd5 Qd7 Rc8 Rh8 e8B Qf7 Ba4 c6 Rge8 Rf8 g8B Qg7 Re5 Nc7+ Ka5 Be3 Na8 Ne6 Bb5 Ba7 Qdd2 Nf4 Bge6 Ng6 Ka6 Rg8 Ba3 Bc3 Bb2 Rd8 Qa1 Rd4 Rg8 Rc4 Nd7+ Ke7 b8R Qf7 Rbc8 Qh7 Rc5 Bh8 Re5 Qf7 Nb8 Kf6 Qaa4 Qg7 Qa1 Qb7+
NB3K1R/1k2n1pB/1r6/Q1rp2b1/Q1RR2p1/N2B1q2/bN2QR2/nQb1Q3 w - - 0 1 illegal: Other
RQ1B1RB1/Qnn1KNp1/r3Qp2/NN2b3/kB5q/r2bbQ2/1R3p1N/2N5 w - - 0 1 illegal: Other
2Br1B2/1N3bBq/Np2N1N1/B1N5/1q1pR2b/knN1R3/2q2b2/NR2K1Q1 w - - 0 1 illegal: No possible last move
3Nrnk1/n2B3R/BBR2rNr/2Q2n2/K1N1b3/b6R/B2rb1q1/BNB1B3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 d4 h5 Kd2 c5 Kc2 a4 d6 h4 b6 h3 d7 e4 g6+ Kg7 g5 a3 Kb3 h2 b5 a2 b7 e3 d5 e2 d6 e1N b6 Rh3+ Nf3 Nd3 f6+ Kh8 g7+ Kh7 f5 Be7 f7 Bf8 f6 Ne7 g8B+ Kh8 g6 Nb4 Qd5 Rh4 Ne5 N8a6 b8R c4+ Ka4 c3 b7 c2 Qc5 Nd3+ Nc4 Bg7 f8N Nf5 f7 Qg5 d8B Ndb4 d7 Bb2 Bb6 Ba3 d8N Rh6 Bd3 Be6 Rc8 Qg2 b8B Nc6 Bg3 Na7 Rc6 Nb8 Be1 Bd5 Bf1 Bf3 Bd3 Be2 Bh7 Nd4 Bf5 Kg7 Bd7 Nf5 Bg8 Na6 Bh7 Nc7 Bg8 Ne6 Bh7 Kf6 g7 Rb8 g8B Kg7 Ng6 Nf8 Rf1 h1B Rf3 Rc8 Rh3 Rb8 Bf4 c1R Bg5 Rd1 Bc1 Ne6 f8B+ Kf6 Bd6 Kg7 Bdf4 Nf8 Bf7 Rd6 Be5+ Rf6 Bfe6 Ra8 Bhg8 Rb8 Bc8 Ra8 Ba6 Rc8 Bd7 Rb8 Nbd2 Ra8 Rb1 a1R Rb4 Rb8 Nb1 Ra2 Ba1 Rd2 Rbb3 Rc8 Rh2 Rb8 Rbh3 Rc8 Ne3 Rb8 Ba2 Kh7 Nc4 Kg8 Nf7 Re8 Nd8 Qg4 Qe3 Be4 Qc5 Rh8 Rh7 Qf3 R2h3 Qg2 Rf7 Rh4 Rh7 Rh6
NRB4k/1pnnRB1r/1NN2R1K/1qbqNr2/N2Q3N/4Bb2/5r2/n1RN4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 Kg7 Kf4 c5 a4 h5 d4 e6 g4 c4 a6 c3 d6 h4 g6 h3 g5 h2 d7 c2 a7 Qf6 d8N Qe7 a5 Nh6 d5 Na6 d6 Nb8 f6+ Kg8 g7 Qc7 a6 Bd7 f7+ Kh7 g8R Nc6 Be3 c1R Bh3 Bg7 f8R Rc8 a8N Na5 a7 Qc3 Nc6 Qb4+ Qd4 Rc2 Ne5 Rb8 Ne2 Bb5 d7 Nf5 d8N Nc6 Nb6 Nfe7 Rf6 Bf8 Nec3 Be2 a8N Qb5 Nca4 Bf3 Re1 h1Q Nbc3 Ra2 Rac1 Nd5+ Kg3 Bd6 Kh4 Nc7 Nd1 Bc5 Re8 Rg8 g6+ Kg7 Kg5 Kh8 Kh6 Re2 Re7 Rg7 Rg1 Rc8 Rg2 Nb8 Ndc6 Nd7 Rh2 Bd5 f4 Rf2 f5 Qg2 Rh1 Bf3 Rf1 Rcg8 Rf8 Qh1 Rb8 Rf8 f6 Qg2 f7 Qh1 Nd3 Qg2 Bg4 e5 Bf5 e4 Nde5 Nf6 Bc8 Nd7 Bf4 e3 Bg5 e2 Be3 Re8 f8N e1N Na5 Re2 Nac6 Nc2 Rf2 Na1 Rf1 Rf7 Rf2 Rf5 g7+ Kg8 Rf1 Rf2 Nfg6 Ref8 Nh4 R8f7 Nd3 Bg4 Nde5 Qd5 Rg1 Be2 Rg6 Bf3 Rf6 Rf4 Kg5 Kh7 g8B+ Kh8 Kg6 Rf5 Kh6 Rg7 Bf7 Rh7+
n1rNRq2/3bpB1B/1BRN4/4rQR1/1kNN2p1/4Kbr1/1bR4R/R2Rn3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 h4 g5 c4 d5 b4 Kd7 f4 g4 b6 Kc6 b5+ Kb7 f6 a4 f5 a3 f7 a2 f6 d4 h6 d3+ Ke3 d2 h7 Qe8 h5 Qd8 h6 Bg7 f8N Ra6 f7 Ra5 c6+ Ka8 c7 Kb7 c5 Qd5 c6+ Ka8 b7+ Ka7 Na3 Kb6 Nf3 Kc5 b6 Qc4 Qc2 d1B Ne6+ Kb4 f8R Ra8 Rf6 Ra7 Qf5 Bc2 Nd8 Qa6 Bc4 Bb1 Nd4 Qa4 Rd1 Bd3 Bf7 Bf8 Nc4 Bd7 c8B Qc2 c7 Na6 b8R Be4 b7 Bf3 Rc6 Bg7 Ra8 Nf6 b8R+ Rb7 Ra7 Re8 h8R Nh5 h7 Rb5 Rg8 Nf4 h8R Nd3 Rh2 Ne1 Rab7 Bf6 Rg5 Qg2 Rbb6 Qf1 Rc5 Rh8 Rbc6 Rh3 Bb7 Rg3 c8N Nc7 N8d6 Na8 Ba6 Qh3 Bc8 Qh8 Bb7 Qf8 Bd2+ Ka4 Ba5 Bg7 Bb6 Kb4 Ne2 Bb2 Nd4 Ra5 Bc8 Be8 Bce6 Bd7 Bg6 Rb5 Bef7 Ra5 Bh7 Rb5 Rab1 a1R Rbc1 Ra6 Ra1 Rba5 Ne5 Ra7 Rcc2 Rc7 Nec4 Rd5 N8b7 Ra5 Re8 Rc8 Nd8 Re5+
5Qb1/5R2/B2N3B/Nn6/p2R2Bb/1N1rp1rq/BBBn4/KNRqb1kB w - - 0 1 illegal: No proof kernel
4N1r1/1Br2B2/1RnBN3/1RK2N1B/b4qrb/nB1Q1N1n/rBb3kN/R7 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kd4 h5 e4 f5 b4 c6 g4 h4 d6 Ke6 g6 f4 g5 a4 b6 f3 g7 a3 b7 f2 b5 h3 d7 h2 b6 a2 g6 Ne7 Bg2 f1B Kc5 Bd3 Bb2 Ra7 Nf3 Ba6 d4 Bd3 Nbd2 Ra6 Nf1 Be2 Qd3 Qc7 d8N+ Kd7 g8B Bd1 d5 Ba4 d6 Nd5 g7 Be7 Bf7 Bh4 g8B Nf4 Ne6 Nh3 Ned4 Ra8 Rb1 a1N Nf5 Nc2 Bb3 Na3 Bgf7 Rg8 e6+ Kd8 d7 Qf4 Rg1 h1R e5 Rg4 Ra1 Rh2 Bh1 Rhg2 N1h2 Rg8 Rgc1 R2g4 Rc4 Ra7 Rb4 Ra6 Rb5 Ra5 Kd6 c5 Kd5 c4 Kc5 Nc6 b8B c3 b7 c2 Bd6 Ra6 b8R Ra7 R8b6 c1R+ Bc4 Bc2 Bb3 Ra6 Be7+ Kc7 d8N Bd7 Bd6+ Kc8 e7 Be8 Ne6 Kd7 Bg6 Ra7 Bh5 Rc7 Kd5 Re1 Bg2 Re2 Kc5 Kc8 Neg7 Kd7 Nd2 Qf2+ Bd4 Bd1 Rb4 Nd8+ Bc6+ Kc8 e6 Qf4 B4e5 Bd7 e8B Reg2 Ndf3 Ra2 e7 Bc2 Bef7 Be8 Ne6 Bd7 Kd5 Be8 Ba8 Ba4 e8N Kd7 R4b5 Rb2 Ne1 Ra2 Bb2 Nc6 Bde5 Rg2 Nfd4 R2g4 Bb7 Ke7 Kc5 Kd7 N8g7 Ke7 Bd6+ Kf6 Bf8 Ke5 Ne8 Qf1 Qc3 Ke4 Bd6 Qf4 Qc4 Ke3 Nef3 Kf2 Qd3 Kg3 Nf5+ Kg2
2R2n2/2NB1r2/1BN2r1Q/K1q3Nn/2B2r1B/RNB1b3/B3b3/nR2nkbN w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 c5 d4 e5 Kd2 a5 Kc3 h5 f4 c4 g6+ Kf6 b6 h4 b7 e4 d6 a4 d7 e3 b5 e2 g7 e1B+ Bd2 a3 g5+ Ke7 Kb4 Kd6 g6 a2 d5 c3 f6 h3 b6 h2 f7 c2 f5 Ke5+ d6 Kd4 f6 c1N Bc3+ Ke3 Nd2 Kf2 Ne2 Rh5 Ng3 Re5 Bh3 Ne7 g8B Re3 g7 Ra7 Qh5 Re2 Qh6 Na6+ Ka5 Nd5 b8N Nd3 Nc6 Qe8 d8B Bf5 b7 Re6 b8N Nac5+ Na6 Bg4 d7 N5f4 Bb6 Qe7 d8B Be2 Bg4 Rd7 Nc7 Nh5 Bh3 Re4 Bf5 Rd6 Bd7 Kg2 Rf1 Bf2 Rfb1 Qe5 Be7 h1R Bd8 Rg1 Nh1 Ne1 Be7 Rc4 Bd8 Be7 f8R Rf1 f7 Bg1 Re8 Bf6 f8N Bg5 Nfe6 B5e3 Bh4 Rf2 Ng5 Ne6+ Rb5 Qf5 Rc8 Nf8 Bd5+ Re4 Bc4 Qc5 Rb1 a1N Rb3 Re7 Ra3 Rf4 Ba2 Qe5 g8B Rdf6 Bgc4 Qd4 Rb4 Ref7 Rb1 Qd6 Nb3 Kf1 Na8 Qd4 Nc7 Qc5+
3rRRqR/R2RNB2/RB2NB2/1NbNr1rQ/3q4/1N2n2r/r1bKn3/7k w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 d4 Kd6 h4 c5 b4 e5 b6 g5 f6 a5 b5 g4 h6 a4 b7 a3 b6 c4 f5 a2 f7 g3 h5 c3 h7 c2 h6 e4 f6 e3 Bc4 e2 Nd2 g2 Nb3 Nc6 b8N Nce7 b7 Qd7 Nf3 g1R+ Kd2 e1R Na6 Ref1 b8R Qc7 Nb4 Ra6 Bb2 Bd7 Re8 Bg7 f8R c1R f7 Nf6 Rh5 Rg8 h8R Nf5 h7 Qc8 Rh6 Re1 Qe2 Rh1 Qh2+ Ng3 Qh5 Rh3 Rg6 Kc7 d6+ Kb7 d5 Ba4 d7 Ne2 d8R Ng4 d6 Bd4 d7 Bc5 Bf6 Ne3 Rh6 Rg5 Nd5 Kc6 Nfd4+ Kd6 Nb5+ Kc6 Rb1 a1Q Rg6 Qe5 Ra1 Qe4 Ra3 Qb8 Rg7 Qg3 Ra8 Rc3 d8B Qd4+ Bd3 Ra7 Bb6 Rd7 Ra7 Rd8 Na1 Bb3 R3a6 Bc2 Nb3 Rc4 Rd7 Ra4 Rda7 Ra2 Rd7 Qc4 Bg6 Qb8 Rfg8 Qe5 f8N Qg4 Rda7 Qge6 Rgd7 Qd4+ Bd3 Qf7 Ne6 Qg7 Rgf8 Qg8 Ndc7 Re5 Nd5 Rg1 Nbc3 Rgg5 Nb5 Qh4 Bg6 Qg4 Bf7 Qd4+ Ke1 Rc8 Bfd8 Be7 Ndc3 Qg6 Rhg8 Bc5 h8N Qg7 Bf6 Rd8 Ng6 Qh7 Rh8 Qg7 Nd6 Qg8 Nce4 Kd5 Nb5+ Kc4 Nec3 Kd3 Nd5 Ke4 Qh4+ Kf3 Qh5+ Kg2 Nge7 Qh4+ Kd2 Kh1 Ra4 Qf4 R4a6 Qd4+
1B3rb1/Brn2q2/NrnN3r/Q6q/1R4B1/b1KN2RB/1R2Np2/3k1NNB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 c5 d4 g5 Kd2 a5 e4 f5 h6 c4 b6 a4 h5 f4 b7 g4 h7 a3 d6+ Ke6 h6 f3 b5 a2 d5+ Kd7 b6 f2 e6+ Ke8 e7 Kd7 e5 g3 Rh4 g2 Kc3 Bg7 Qd2 Qc7 e8B+ Kd8 d7 Ke7 d8R Bf5 d6+ Ke6 d7 Bc2 Bh5 Kf5 Bg4+ Ke4 Qg5 Ba4 Be3 Ra5 Nd2+ Kd5 Rb1 a1Q+ Rb2 Na6 b8B Qa2 b7 Bc2 Bea7 Ne7 Rg8 Qa4 d8N Qb5 Ne6 Bb3 Nd4 Nc6 Nde2 Qf7 Qh5 Bf8 e6+ Qf5 e7 Nc7 e8B Ra6 Rg7 Ba3 Rg6 Rf8 h8N Qc5 h7 Rb6 Nf7 Qe7 Ne5 Qef7 h8N Qg5 Qh6 Qh5 Qg5 Kc5 Qd8 Kb5 Bed7 Ka4 Nd3 Ba2 Bh3 Bb3 Bdg4 Ba2 Ngf3 g1R Bfg2 Rb1 Bh1 Bb3 Nf1 Ba2 Kc2 c3 Nfg1 Bc4 Rf6 Bd5 Rf3 Ba2 Rg3 Be6 Ne1 Ba2 Kd3 c2 Kc3 Bc4 Nd3 c1R+ Rc2 Re1 Rd2 R1b5 Rb2 Rb1 Qg5 Re5 Qf5 Re6 Qd5 Rh6 Qe5 Qf3 Nf7 Be6 Nd6 Bg8 Qg5 Qff7 Qd2 Qg5 Rh5 Qh4 Rhb5 Qhh5 R5b4+ Ka5 Qg5+ Rb5 Rc4 Rc8 Rd2 Rb4 Rb2 Ka4 Re4 Na8 Bc7 Rf8 b8N Rb7 Re5 R4b5 Na6 R5b6 Bcb8 Nc7 Rbb5 Bc1 Re4+ Ka3 Rb3+ Ka2 Reb4 Ba3 Nb2 Kb1 Qa5 Nd8 Kd4 Kc2 Nd3 Kd1 Kc3 Nc6 Rb2 Qhg6 Nd2 Qgf5 Nf1 Q5h5
K2r2B1/2R2R2/NBN3R1/2bR2NQ/bB1R1nq1/BB3b1p/5kp1/1rn1Rn2 w - - 0 1 illegal: No proof kernel
N1Kqkrqb/NrB3nN/6pN/1b3N2/1n3rB1/QB3p2/R4BB1/R2RN3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Kg3 a5 Kf4 f5 h4 g6 e4 a4 d4 c4 b4 c3 e6 a3 Ke5 c2 h6 f4 h5 f3 d6 a2 b6 Ne7 d5 Ra3 h7 Nf5 e7 Ra6 b7 Bh6 d7+ Kf7 e8B+ Kf8 d6 Nh4 Ke6 Qc7 b5 Qc6 e5 Rb6 Rh2 Qe4 Be3 c1R Qb3 Rc2 Nh3 Nc6 b8B Qb4 Bg2 Ra6 b6 Rg8 h8N Ra3 b7 Bf4 h6 Ne7 h7 Rc3 Bc7 Nc6 b8N Na5 Bf7 Bh6 Ng5 Rc4 Bf2 Rg7 Na6 Bb7 d8N Rf4 Kd7 Qa4+ Nc6 Rf5 e6 Qd4 Na7 Bc6+ Kc8 Qe5 d7 Qe4 d8R+ Be8 Rd1 Rg8 e7+ Kg7 Qb2+ Qd4 Bb3 Rf4 Nhf7 Rh8 Nd6 Bb5+ e8B Kf8 Bd7 Nc6 Bg4 Nb4 Nf5 Bg7 Qc1 Ra4 Na3 Ke8 Nc2 Rf8 Qa3 Bh8 Ne1 Qd5 Kb8 Qg8 Kc8 Bd4 h8N Bb2 Rac1 a1Q Nhf7 Bh8 Nh7 Qf6 N7h6 Ra5 Ra1 Qe7 Nc5 Ra6 Nd7 Rb6 Qc1 Qd6 Qa3 Rb7 Nb6 Qd4 Na8 Qb6 Ra2 Qd4 Rh1 Qdd5 Ng3 Nf5 Rda1 Ng7 Ngf5 Qd6 Nc2 Rd4 Rhd1 Rf4 Ne1 Qd8+
2BrkNb1/N2r3B/7B/4q2R/BnK1R1RQ/1p1Npnb1/1bR1b1RR/6B1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 e5 Kd3 h5 f4 c5 a4 b5 g4 b4 f6 e4+ Kc4 h4 d4 h3 f7+ Ke7 d6+ Kd7 g6 h2 g5 b3 f5 Rh5 f6 Rh7 d5 Be7 f8B Ra6 f7 Qb6 g7 Nf6 g8R Qb7 g6 Ng4 g7 Rh8 Na3 Rh3 Ne2 Nf6 Qd4 Rh5 Be3 Qa8 Nc1 Rh7 Nd3 Kd8 d7 Re6 a6 Ng4 a7 Bd6 a5 Nf2 a6 Bb7 Nb5 Bc6 Bh3 Nd1 Ra5 Rh8 Bg1 e3 Qh4+ Be7 Bg4 Qb7 a8R Rd6 a7 Nf2 Ra2 Qc7 Rc2 Rh7 Rh8 Nh3 g8B Ng5 Bh6 Bf6 f8N Be5 Bf5 Ke7 d8R Bg3 Bc8 Na6 Rb8 Rf7 a8B Nb4 Bh7 Bd7 Rg2 Bg4 Bc6 Be2 Na7 Qa5 Rd7+ Ke8 Rc7+ Rfd7 Ba4 Nf3 Rb5 Rd8 Rg8 R6d7 Rc6 Qc7 Rg4 Qe5 d6 Rg7 Ra5 Rgd7 Kb5 c4+ Rc5 c3 Kc4 c2 Rab5 Rg7 d7+ Kf7 Rc6 c1B Re4 Bb2 Rg6 Qf6 Rh5 Qe5 Rgg4 Re8 Bf2 Rd8 Rc1 h1B Rc2 Rg6 Rh2 Rd6 Bg1 Rd5 Rh3 Bg2 Rh2 Bh3 Rgg5 Be6 Rgg4 Re8 d8R Re7 Ng6 Red7 Rg8 Rd8 Nf8 R8d7 R8g7+ Ke8 R7g5 Bg8 Rg6 Be1 Rgg2 Bf2 R6g4 Bg3 Nc6 Rd8 Na7+ R5d7+
2K1R2N/1QBQqN1N/N1r1R3/6N1/4n2N/1b2rNR1/k1Bbr1qR/4n3 w - - 0 1 legal: proof: g4 a5 b4 d5 bxa5 b5 a4 c5 axb5 h5 gxh5 f5 e4 c4 c3 d4 cxd4 c3 exf5 c2 d5 Rh6 Ba3 c1Q Bb2 Qc6 bxc6 Rh7 Bc1 Rh8 Ke2 Kf7 Kf3 g5 Ke4 e5 h4 g4 f4 g3 d4 g2 c7 Ke7 f6+ Kd6 f7 Bb7 Kf5 e4 c8Q e3 h6 e2 h5 e1R a6 Re3 h7 Nf6 h6 Ra7 Nh3 g1Q Bd3 Qf1 Nd2 Bg7 f8R Ne8 Ra3 Rg8 Rf6+ Re6 Bc2 Ra8 a7 Qe1 Rh2 Rh8 Rg3 Bc6 Qb7 Qe7 Nf3 Nd7 Bd2 Bb5 Ba5 Rd8 a8N Qd2 Nh4 Qf7 Nc7 Bc6 Na6 Qe2 Bc7+ Ke7 d6+ Kf8 d5 Qg2 Ng1 Nb8 d7 Rg8 h8R Ke7 h7 Re2 Ngf3 Ba4 Qd2 Nc6 d6+ Kf8 Qd5 Nb4 Qdc6 Bb3 Qa4 Rf2 Ke5 Rd2 f5 Bh6 Rfg6 Rf2 f6 Nd3+ Kf5 Qg7 f7 Nf6 Qab5 Re8 d8N Re7 d7 Ne1 Qd3 Re8 Ne6+ Ke7 d8N Re2 f8N Bd2 Neg5 Qf7 Rh6 Rg6 Rg8 Qg7 h8N Qf7 Nfh7 Qf8 Qde4+ Kd7 Qc4 R8e3 Ndf7 Qe7 Re8 Ne4 Qcb4 Rd6 Qc8+ Kc6 Rg6 Kd5 Qbb7+ Kc4 Rh6 Rc6 Rd6 Qf8 Ke6 Kc3+ Kd7 Kb2 Rde6 Ka3 Kd8 Qb4 Qd7 Ka2 Kc8 Qe7
N2R1BB1/bR1NR1q1/k2q1B1n/1b2r2B/2BrQ3/1qrR4/1B5K/1Q2b2B w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Kf2 Kd7 Kg2 e5 b4 a5 d4 c5 f6 Kc7 d6+ Kb6 d7 h5 d5 a4 d6 c4 f7 a3 Nc3 a2 Qe2 e4 Na4+ Kb7 b6 e3 b5 h4 Kh2 h3 Nf3 c3 Bb2 c2 Re1 a1R Bg2 c1Q Ne5+ Kb8 b7 Ka7 b8R Qb1 Nb6 Qc7 d8B Qb7 d7 Qf5 Bf6 Qbe4 d8R Qeg4 Ned7 Nh6 g8B Bb4 f8B Bc5 g7 Qc2 g6 Ba6 Bf7 Rd1 g8B Rd4 g7 Qb3 Bh5 Rh7 Qd3 e2 Qe4 Qg6 Rd1 e1B Bc4 Rh8 g8B Qg7 Rd3 Rh7 Na4 Rh8 Rb6 Rc8 Rb8 Rc6 Nab6 Re6 Na8 Re5 Rf1 Rh7 Bh1 Bb6 Rbc8 Rh8 Rc6 Kb7 Rf4 Ba7 b6 Bb5 Rc7+ Ka6 b7 Rh7 b8Q Rh8 Rb7 Rh7 Bg5 Rh8 Kg1 h2+ Kg2 Rh7 Rf7 Rh8 Re7 Rh7 Kf3 Rh8 Bf6 Rh7 Bg2 h1Q Kf4 Qh3 Bh1 Qe6 Kf3 Qd6 Kf4 Rh8 Kf3 Qf7 Kg2 Rh7 Kh2 Rg7 Qc7 Rg3 Qc5 Qg7 Qb4 Bf2 Qbe1 Re3 Qb1 Be1 Rd1 Rc3 Rd2 Qc6 Rd3 Qd6
k4B2/b4NB1/1B6/5N1q/R2qrRr1/2nBR2R/1r1QrRQR/K4nrR w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 b4 Kd7 d4 Kc8 Kd2 Kb7 Kc2 a5 Kb2 h5 f6 c5 b5 e5 d6 a4 f7 e4 d7 c4 g7 h4 g6 e3 d5 e2 g5 e1R d6 h3 Ne2 h2 Na3 Ra6 Qd2 Rh3 Nd4 Ra5 Bd3 Rh5 Nf5 Ne7 g8R Re4 g7 Nec6 g6 Ne7 Rh8 Rg5 g8R Ra8 g7 Qc7 d8R Re1 d7 Rg4 Rh3 Qc5 Re8 Re2 d8B Na6 Rgh8 Nc7 g8Q Ned5 Ree3 c3+ Kb1 Qb4+ Bb2 Rb8 Nc4 a3 Ne5 Bc5 f8B Ka8 Nf7 c2+ Ka2 c1Q Bbg7 Qd1 R8h4 Re4 Rf4 Qd4 b7+ Ka7 Ref3 Ne3 Rf2 Ncd5 Ba5 Nf1 Bd8 Ra8 b8R Bb6 Rc8 Rb8 Rc2 Ka8 Rb2 Ba7 b6 Qc2 Re1 Qcc5 Ka1 Nc3 Rb4 a2 Ra4 Qcd6 Bc7 Qh6 Bd8 Qh5 Bc7 Rc8 Bd8 Rc4 b7+ Kb8 Ba5 Rb4 Bb6 Rb2 Rg1 h1R Rgg3 Rg1 Re3 Rg4 Rfh2 Ng3 Reh1 Nf1 Bh6 Rh4 Qg2 Rg4 Bhg7 Rb4 Rf2 Rb2 Bbc5 Kc7 b8R Kc6 Rc8+ Kb7 Rc6 Kb8 Bb6 Ka8 Rcc4 Re1+ Qd1 Rb3 Rf4 Qh4 Qb2 Nd5 Rcc2 Qh5 Rcg2 Nc3 Qf2 Nd2 Qg3 Rg1 Rgf2 Nf1 Qg2 Rb5 Qb3 Rb4 Kb2 a1R Ra5 Rb5 Ra4 Re1 Qb4 Nd1+ Ka2 Re2+ Qd2 Nc3+ Ka1 Rb2
rr3QRn/R3BBBr/BKB5/R5b1/1R2Bkb1/2bp3B/2b5/nQNN4 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Qb6 g7 Bc8 g5 Qg6 hxg6 Nb8 Kf2 h5 Ke3 e5 b4 Ke7 c4 d5 f6+ Ke6 c6 Kf5 b6 a5 b5 e4 Kd4 a4 b7 h4 c7 h3 b6 h2 f7 a3 c5 a2 c6 e3 Ba3 e2 Bh3+ Kf4 Be7 e1B Kc5 d4 Ne2+ Ke5 Nc1 d3 Nc3 Bg4 c8B Kf4 c7 Ke5 Bd7 Bh4 c8B Ra3 Bc6 Nf6 g8R Bh6 f8B Ra7 g7 Be1 g6 Nh5 Kb5 Nd7 b8R Bf2 b7 Nc5 Kb6 Be1 Qc2 Bg5 Nd1 Nb3 Qb1 Bb4 Rf1 h1B Rf7 Bg2 Bf5 Nf4 Bfe4 B2f3 Rf5+ Ke6 Ra5 Rh7 Rh8 Bc3 g8B+ Rf7 g7 Ra8 Rh4 Ng6 Rc8 Nh8 b8Q Nd4 Qf4 Nc2 Ra7 Be2 Qf3 Ke5 Rb8 Rf5 Bc4 Rf7 g8B Rh7 Qf7 Bef3 Ba6 Be2 Qe8 Kf4 Bg7 Bf3 Bf7 Be2 Rbb7 Rb8 Qf8 Bf3 Bf5 Bd5 Be4 Bb3 Rh5 Bgf6 Ra5 Bg5 Qb2 Ba4 Rb1 a1R Qb4 Re8 Rb8 Ra2 Qb3 Na1 Qc2 Rd8 Rb4 Rb2 Qb1 Bc2 Rbb7 Ra8 Rb8 Be5 Qd8 Bef6 Qd6+ Be5 Rg8 Rb3 Qd8 Bc3 Qf8 Rh4 Rbb5 Rh6 Kc7 Rb4 Kb7 Rh7 Rb6 Rd4 Rb4 Rdd8 Kb6 Rdb8+
3Q1Nq1/1q3n2/1R4B1/q1nN1QbN/NQNq1NQ1/1NR1Bpq1/r6K/4k3 w - - 0 1 illegal: No possible last move
N1N3NB/6K1/1B1b3N/4NQ1B/2n1nr2/pRp2p1N/Q3NR1b/2Bqk2q w - - 0 1 legal: proof: c4 a5 g4 f5 f4 g5 a4 b5 axb5 e5 fxe5 d5 cxd5 f4 h3 Bf5 gxf5 g4 Nf3 g3 Ng1 Ra6 Qa4 Rg6 Qd1 Rg4 hxg4 Kd7 Nc3 Ke7 Nb1 Ke8 d4 Kf7 Kd2 h5 Kd3 c5 Ke4 a4 b4 c4 d6 a3 g5 h4 f6 Kg6 b6 Kh5 Kf5 g2 d5 h3 e4+ Kh4 Kg6 Kg3 b7 Kf2 f7 h2 d7 Rh4 e6 Bh6 f8Q Rg4 e5 Nf6 d6 Nd5 b5 Bg7 e7 Nb6 e8N Na4 e6 Bb2 b6 Nc5 e7 Qc7 d8B Nb3 d7 Na5 Nd6 Bc3 e8N Bg7 Nh3+ Kg3 Qe2 g1B Ra2 Be5 Nc3 Nb3 Nc8 Nd2 Qf5 Qc5 Nc7 Bf6 Na8 Be7 Kg7 Qb5 g6 Na6 b8N Rg5 b7 Bd6 Bb6 Nc5 d8N Qa4 Nbc6 Qa5 b8B Na4 Nf7 Rh5 Nh6 Rh4 Ne5 Nc5 Rb2 Nce4 Rb3 Qd5 B8c7 Nf3 Qa2 Qd1 Be2 Nfd2 Bh5 f3 Ne2+ Kg2 Bd8 c3 Be7 Nc4 Bf6 Be3 Rf1 h1Q Kg8 Bd4 Bh8 Rf4 g7 Bg1 Kh7 Bh2 g8N Qd2 Kg7 Qd4 Rd1 Qd3 Rd2 Kf1 Nd4 Qb1 Rf2+ Ke1 Ne2 Qd3 Qb2 Qd5 Qa2 Qd1
3Qb2r/kBbRK3/7p/pR2p3/1N1rRB2/1Q2qQN1/1q2Q1R1/Q3QQn1 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Ke2 Kd7 Kf3 e5 Kg4 a5 b4 c5 d4 Kc7 d6+ Kb7 d7 h6 f6 c4 Kf5 c3 Ke6 c2 b6 Bc5 b5 Rh7 f7 Kb8 f8Q Ba3 d5 Bb2 d6 Bc3 b7 Ra6 Qdf3 Ra7 Ra2 Nf6 g8Q Bd4 g7 Bb6 g6 Ne8 Bf4 c1Q Rh4 Qc5 Rg2 Qe3 Na3 Qc5 Ne2 Ra6 Nc2 Rh8 Nb4 Ka7 b8R Qcc7 Ng3 Qc1 Kf7 Qdc7 Ke7 Bf2 Qa2 Rh7 Qae2 Q7c6 d8Q Bb7 d7 Rh8 g8Q Ba8 g7 Bb7 Qgb3 Q6c2 g8Q Q1d2 Qa3 Qdc1 Qa1 Qe4 Qgb3 Bb6 Qbd1 Nf6 Qde1 Bc8 Qf7 Bc7 Rb7+ Ka8 b6 Nh5 Qdf8 Qcc2 d8Q Qe3 Qb3 Qb2 Ra7+ Kb8 b7 Rd6 Bg5 Qed2 Qff2 Nf6 Re4 Bb6 Q2d1 Rd4 Ba6 Ng4 Qff1 Nf2 Qff3 Qe3 Qde2 Nh3 Bf4 Ng1 Bc4 Qb1 Bd5 Qa2 Ra6 Bc7 Rd6 Ka7 b8R Qb1 Rb5 Qb2 Bb7 Bd7 Rdd5 Be8 Rd6 Qbd2 Rd7 Qb2
nR3N1q/1B2BR1b/2B1R1b1/1nN2r1q/nk1B1R1Q/rB2K1Q1/2Br4/4b2B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 h5 e4 f5 b4 c5 d6 h4 g6 c4 e6+ Ke8 e5 h3 e7 Kd7 e8B+ Ke6 d7 Kd5 g5 a4 e6 h2 g7 c3 b6 a3 b7 c2 e7 a2 g6 f4 b5 f3 b6 Nc6 b8Q Ra7 b7 Ra3 Bb2 c1R Qe1 Rh6 Bg2 Kc4 d5 Kb5 d6 Nb4 Ne2 Kc4 Bd4 Nd3+ Ke3 f2 Nbc3 f1B Nf4 Rb1 Ne4 Qb6 d8R Qb3 d7 Rh8 Nc5 Qb2 Nfe6 Rh5 Qbg3 Rf5 b8R Nf6 g8B Rd1 g7 Rd2 Bg6 Ne8 Bb7 Nc7 Re8 Na8 d8B Kb4 B8h7 Bh3 Rf1 h1Q g8B Qd5 Rd1 a1N Rf4 Nb3 Qef2 Qa1 Rf1 Nb2 Qfh2 Bg2 Qhh4 Be4 B8f7 Bh6 Nf8 Na4 Bhg8 Qe5 Bfd5 Be6 Bdc6 Bf7 B6h7 Bg6 Bgd5 Nc1+ Bb3 Na2 Rf3 Qh8 Rf2 Bd3 Bh1 Qd1 Rf3 N2c3 Rf1 Rg5 Rf7 Nb5 R1f4 Bh5 Bh7e4 Bb1 Bc2 Bg6 Bc7 Qh5 Bd6 Rg2 Rec8 Bg7 e8B Rd2 Be7 Rf5 Bec6 Be5 Rd8 Bc7 Rd5 Ba5 Re5 Bh7 Re6 Rf6 Qgh3 Bc7 B2e4 Bd3 Rf3 Bg3 Rf4 Be1 Q3g3 Bb1 Bef3 Bbe4 Bd1 Beg6 Bc2 Rf5
Q1n1r1n1/QNrR4/3QBqk1/1K4B1/N1bNN3/1R1Q1b2/1N1nnb1n/4N2N w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 c5 f4 a5 d4 h5 g4 a4 b4 e4 b6 e3 g6+ Kg7 b5 h4 d6 e2 d5 e1N b7 a3 d7 a2 b6 h3 d6 h2 f6+ Kh6 g7 Nd3 g5+ Kg6 f5+ Kh7 f7 Qf6 d8N Qh6 f6 Nf2 d7 Nc6 b8Q Na7 b7 Nh3 Qbd6 Ne7 g8N Rb8 Nd2 Nf4 Rb1 a1N Rb3 Qg6 Nh6 Qb1 Ne6 Ng8 d8N Bg7 f8Q Ne7 f7 Nf5 Bh3 Bc3 Ngf3 Nd5 Ng4 Nd4 Nf2 Ne7 Ne1 Nf3 Nd4 Ng8 Be6 Kg6 Rg1 Ba5 Nh1 Qf5 Qfe7 Bb6 f8Q Ra8 b8N Rh7 Na6 Qf6 Nb7 Bd7 Qe2 Bc6 Qd3+ Be4 Rg3 Nc8 Kb5 c4 Nac5 c3 Nc4 c2 Na4 Ba7 Be3 c1N Ncb2 Ne2 Rh3 Rg7 Rh7 Rb8 Qec7 Rf7 Qa5 Rc7 Rd7 Bc5 Qa7 Bb6 Nf2 h1B Bf4 Bg2 Nh1 Nh2 Qd8 Bf3 Bd2 Kh5 g6 Bd5 g7 Bc5 Bg5 Bb6 Rb4 Nb3 Q8f8 Nd2 Rb3 Nge7 g8N Bc5 Nh6 Ng8 Ng4 Bb6 Ngf2 Bc5 Ne4 Kg6 Ndc2 Bf2 Qd8 Nce7 Qf8 Re8 Nd4 Nc8 Qda6 Qe5 Qfd6 Qf5 Qa8 Qf6 Q6a7 Bc4+
1Rq1rnQ1/1B2Rr2/N1RQ2b1/3B2b1/1R1N3k/BR5p/n1R5/n1BRb1rK w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 Kf2 c5 b4 h5 d4 e5 g4 a5 Kg2 c4 g6+ Kf6 d6 h4 g5+ Kg7 d5 a4 d7 e4 d6 c3 b6 c2 b7 e3 b5 e2 b6 e1R Ra2 a3 Nd2 Re3 Ne2 Re7 Ne4 Rh6 f6+ Kh8 f5 Re5 g7+ Kh7 f7 Raa5 f6 Kg6 Rh3 Kh5 g6 Rec5 Rb3 h3+ Kh1 Ra6 Bg2 Re5 Nc5 Qe8 d8R Qd7 Nd4+ Kh4 Re8 Be7 f8B Qb5 d7 Qc4 d8R Nd7 b8R Rh7 f7 Bg5 b7 Ne7 g8B Nc6 g7 Nb4 Re7 Rg6 Na6 Bd2 Bf3 Be1 Qd2 Rg4 Qf4 Re3 Qd6 Rg6 Rab2 a2 Bd5 a1N Ra2 Rhh6 Bh7 Rh5 g8Q Rf5 Rab2 Rgg5 Bg6 Rf2 Bge4 Na2 Rb4 Qc5 R2b3 Rg4 Ra8 Rff3 b8R Bb7 Ra7 Qc8 Re6 Rg2 Be7+ Rg5 f8R Rf7 Rfe8 Bc6 Rc7 Nf8 Rf6 Bb5 Rc6 Be2 Rf2 Bg4 Rd2 Bf5 Rd1 Re2 Rd7 Bg6 Rdc7 Nd7 Bf8 Re3 Re7 Re2 Bh6 Nf8 Ba3 c1B Rc2 Rg3 R7c6 Bg5 Bf3 Bf6 Bhc1 Bg5 R6c5 Rg4 Bb7 Re6 Bfd5 Re2 Rc6 Rg3 Rd7 Re8 Re7 Rg1+
1RB2rK1/1R2Q1B1/3pNQ2/b1qkbB1B/4r1B1/B4BR1/1n1n2r1/1RNn1b2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 a5 Kf4 h5 Ke5 a4 g4 a3 c4 a2 b4 h4 f4 h3 f6 h2 c6 e6 f5 Ne7 b6 Ng8 b5 Ra6 b7 Rh3 c5 Rh6 g6+ Ke8 f7+ Ke7 c7 Ra3 b6 Ra5 g7 Qe8 g5 Rh3 g6 Ra6 c6 Rd3 Nc3 Ra8 Bh3 Ra4 Rb1 a1R Bg4 Rad4 Ne4 Na6 b8R Raa3 b7 Rd2 Qf1 R4d3 Ne2 Nb4 Nc5 Nf6 g8B Rf3 g7 Ne4 Rg1 h1N Rg3 Ra4 Ba3 Nhf2 Nc1 Nd1 Bh5 Rf4 Bh7 Rg2 g8B Nd2 B7g6 Rf3 Bg4 Bh6 B6h5 Qf8 Bh7 Rff2 Bf3 Be3 B7g6 Bg5 Bhg4 Bh6 B6h5 Bg7+ Kf4 Kd6 Kg5 e5 Kg6 e4 Kh7 e3 f6 e2 Ne6 Qe7 f8B e1B f7 Be5 Bg7 Qg5 f8Q+ Qe7 Nc5 Nd3 Kg8 Re4 Ne6+ Kd5 Bf5 Qc5 Qe7 d6 Bf5g4 Bd7 c8B N3b2 c7 Bb5 Bd7 Be2 c8B Qa7 Nd4 Bd3 Bdf5 Qc5 Ne6 Bb5 Qh1 Bf1 Qhh4 Ndc4 Qhf6 Ba5 Ra8 Nd2 b8R Re2 Rb5 Re3 Rb7 Rb3 Rbb8 Rb7 Ra7 Rc7 Rab7 Rd7 Qe8 Rf7 Qee7 Rf8+
1B2BN1k/Rr1RrR1b/R6R/5B2/nRNp1QR1/q1qQ4/1bn2Kn1/1B1q4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 d5 f4 a5 c4 g5 b6 Kg7 b5 e5 h6+ Kh7 f6 e4 f5 g4 b7 e3 f7 g3 c6 d4 c5 g2 h5 e2 f6 a4 c7 a3 b6 a2 c6 Be6 c8B Qd6 c7 Nd7 b8R Qc5 b7 Ra5 Nd2 Qa3 Ra8 Rc5 b8R Rc6 Kf2 e1N Ne2 Qa7 Rg1 Qb7 Nc4 Ba3 f8Q Ne5 f7 Ng6 Bd7 Qb1 c8B Nf6 Bf4 Qb6 Qd3 Bf5 Be8 Rg8 Ra6 Qc7 Rb4 Bg4 Bf5 Qa5 Bb8 Rb6 Nf4 Rg7 Ne6 Nd7 Qd6 Rb5 f8R Re7 Rf7+ Kh8 h7 Nb6 Qf4 Na4 Nf8 Rbb7 Be2 Qc7 Bf3 Nc2 B3e4 Bb2 Ra7 Re5 Rd7 Re7 Raf1 Kg7 h8R a1Q Rh6 Nh4 Rha6 Qa3 h6+ Kh8 h7 Bh5 Nd6 Bg6 Nc4 Kg7 h8R Bh7 Ne5 Qcc3 Nc4 Bg8 Rh5 Bh7 Rhh6 Kh8 Rh1 Nf3 R1h4 Nfe1 Rg4 g1Q+ Ke2 Qh1 Kf2 Na1 Qdg3 Qh5 Bb1 Nac2 Qd3 Ng2 Re1 Rg7 Ree7 Qh1 Rf7 Qd1 Rff6 Re7 Rf7 Rb6 Qdd2 Rb5 Qd3 Rb7
B1bqnb2/n5B1/1B4BR/2r1Nq1B/1p2Qnr1/BkNR1Q2/1B1KbN2/7N w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 a4 Kd6 g4 e5 f4 h5 g6 b5 f6 c5 f7 h4 a6 e4 g7 h3 a5 e3 f5 c4 f6 h2 g5 c3 a7 e2 a6 c2 g6 Nc6 Ra3 Na5 Nh3 Bb7 Nf2 Be7 f8B Qe8 f7 Rd8 a8B Nc6 a7 Rd7 Bb2 c1N Kd2 Bc8 Rd3 Rh3 Nc3 Nf6 g8N Rc7 g7 Rf3 Nh6 Nd8 g8B Be6 Nf5+ Kd7 d6 Nc6 d5 Rf4 Bg7 Qc8 f8B Ne8 Bf7 Qd8 Bh5 Rg4 Ng3 Bf5 Qa4 Rc8 Qe4 e1Q+ Kc2 Be6 Bg6 Bf5 Be2 Qf1 Kd2 Be6 Bd1 Ne2 Qf3 Nf4 Qe4 Rg5 Bdh5 Rg4 Qf3 Nb8 Qe4 Rc5 Qf3 Nc6 Qe4 Kc8 d7+ Kc7 d6+ Kb6 Qf3 Ka5 Qe4 Qb6 d8N Bc8 Nf7 Qd8 d7 Qh3 Qf3 Kb4 Ne5 Kb3 Qe4 Rg5 Qf3 Qf5 Qe4 Rg4 Qf3 Qc7 d8B Qd6 Bb6 Qd8 Ra1 h1B Ra6 Bg2 Ngh1 Bf1 Qe4 Bg5 Bd6 Be7 Qf3 Bf8 Qe4 Rc4 Bda3 b4 Bb7 Be2 a8Q Na7 Bc6 Rh4 Qb7 Qg4 Qf7 Qgd7 Ba8 Rg4 Qff5 Rc6 Qf3 Rc4 Q5e4 Qf5 Bf7 Bd1 Bd4 Rg2 Rh6 Be2 Bb6 Rg4 Bfg6 Rc5
6RN/k3Bnn1/BpqR1q1Q/2B1rB2/2BB4/1N1B4/2N1b1bb/1NKrQ1q1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 h5 a4 e5 f4 c5 g4 Kc7 g6 h4 g5 e4 f6 c4 f7 h3 d6+ Kc6 g7 h2 g6 b6 d5+ Kb7 f5 Nf6 g8N Na6 d7 Kb8 g7 Ba3 f8Q Ne8 f6 Kb7 f7 Be7 d6 Nb8 a6+ Ka7 a5 Nc6 Bd3 Rh4 Nf6 Rh3 g8B Rg3 Qh6 Ne5 f8B Ng7 Ng4 Nc6 Nf3 Rg1 Nd4 Re1 Ne3 Nh5 Nec2 Qc7 d8N Ng3 d7 Bb7 Nf7 Qd6 d8B Qf6 Rg1 h1B Nb3 Bg2 Bb2 c3+ Kc1 e3 Nh8 e2 Bgc4 Bd6 Bde7 Nf5 Ra4 Bf1 Rg8 Bh2 Bc5 Nd8 Bfe7 Bbg2 Ra2 Kb8 a7+ Kb7 Ba1 Nf7 Rb2 Rd8 a8B+ Ka7 a6 Rd7 Bae4 Ng7 Bf5 Rd8 Nb4 Rd7 Rd2 c2 Bb2 Bf3 Bc3 B1g2 B3d4 Rd5 Qh4 Re5 Qh6 Rg1 Qf1 e1Q+ Rd1 Qf2 Qe1 Be2 Rd2 Rf1 Rd1 Qg1 Rd2 Nd8 Rd1 Rf2 Rd2 Kb8 a7+ Kb7 a8B+ Ka7 Bc6 Nf7 B6b5 Nd6 Kb2 Nf7 Ba6 c1Q+ Ka2 Qc3 Nc2 Qb4 Ka1 Qa4+ Kb2 Qac6 Kc1 Bh5 Re2 Bhf3 Re4 Rd2 Rg4 Be2 Rg6 Qg5 Re6 Qf6 Rd6 Rd1+
NQB4b/3q1B2/3BRRBn/3R1N1R/r3bnQ1/3BbKnB/2rp3k/2B1b3 w - - 0 1 illegal: No possible last move
Q1b1Rb1r/2k1NNQp/nN4Rb/1r1n4/2K3N1/BRN2BR1/2N3q1/3r2bN w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 e5 b4 a5 g4 c5 f4 a4 b6 e4+ Kc4 a3 d4 e3 b7 e2 g6 e1R d6 a2 b5 Qf6 b6 Qe5 f6 Ra5 g7 Ra6 g5 Kd8 g6 Qe4 f5 Ra8 f7 Ra3 d7 Qf4 f6 Nh6 g8N Na6 b8N Qh4 b7 Nc7 g7 Ng4 d5 Qf2 Nh3 Na8 Nc6+ Kc7 b8R Re8 d8N Re6 d6+ Kd7 Nd4 Rb3 Rg1 Qf3 Nc3 Re2 Ne7 Rb6 g8N Qf4 Ba3 Reb2 Qa4+ Rc6 Rb3 Qg5 Bg2 Qe5 Bf3 Nf2 Nc2 Ne4 Rg6 Qg5 Nh6 Qg2 Nf2 Nc7 Qa8 Na6 Rg1 a1B Nhg4 Rb6 Nh1 Rb1 Na4 Rd1 Nc3 Qd2 Rg3 Qg2 Bb2 Rb5 Ba3 Bg7 f8Q Bh6 f7 Nf6 Nce3 Nd5 Nc2 Bg7 Qg8 Bf8 Qg7 Bb2 Ne6 Bc1 Nf4 Kd8 d7 Kc7 d8N Be3 Na4 Bg1 Ne2 Rb7 Nb6 Rb8 Kb5 c4 Nc3 Rb7 Nb1 c3 Kc4 Qd2 Nce3 c2 Nc3 c1B Nc2 Rb8 Nf5 Bb4 Ne7 Qg2 f8R Bh6 Re8 Bd6 Nf7 Bdc5 Nd7 Rb5 Nb6 Bd6 Nc6 Bf8 Ne7 Bd7 Na2 Be6 Nc3 Bc8
Nr3Q2/1RK1Nq2/pR1NQ1bn/bQ4Q1/BQ1b2b1/nN4QQ/4rB2/1k5q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 d4 h5 f4 h4 d6 h3 d7 a6 b6 e6 b7 c4 d5 c3 f6 h2 f5 c2 d6 Kb3 f7 Qa5+ Bb5 Be7 d8N Qe1+ Be3 Qe2 f8Q Rh4 d7 Rh7 g6 Ra7 g5 Nf6 g7 Qc4 g8Q Rh8 g6 Nh7 f6 Qh4 f7 Qa4 g7 Ra8 Nc3 Bh4 Kd6 e5 Ne6 e4 d8Q Qd4+ Kc7 Ng5 Qf3 c1Q Bf2 Kc2 b4 e3 Nge2 Bd7 Qh3 Ne4 Qg5 Be8 Rb1 Nc6 b8Q Nf6 Ne4 Ng4 Nd6 Qd5 Ba4+ Qb3 b5 Nb4 b6 Nh6 Rd1 h1B b7 Bf3 Rg1 Qd1 Nc1 e2 Qc8 e1B b8Q Be2 Qbb5 Rb8 Qfe7 Rh7 f8Q Bg6 Qcb7 Bf3 Qgg3 Be2 Qeg5 Bg4 Qgf7 Qf3 g8N Qh1 Ne7 Bc3 Q7e8 Bd4 Re1 Rf7 Re5 Rf3 Rf5 Rf4 Rf6 Re4 Q7b6 Re2 Q6a5 Nd3 Qab4 Nb2 Qec6+ Nc4 Qcd5 Na3 Rf7 Kd1 Qdc4 Qc2 Nb3+ Qc1 Rb2 Qf4 Qb4c5 Bd3 Kd7 Bf3 Ng8 Bc3 Qa5 Bd2 Qh5 Ba8 Nc1+ Nc2 Nc7 Bd8 Rb6 Bf6 Qce6 Bd4 Qab5 Ba5 Qhg5 Bg6 Nb3 Na3 Qcb4 Bf3 Na8 Kc2 Rh7 Bg4 Rf7 Qf1 Kc6 Q1c1 Rfb7 Qf7 Ne7 Qh1+ Kc7 Kb1
3k3n/2p5/4K2R/1BN1QQ1r/B2r3b/Bb1QqQpq/Q2R2B1/N1Q1nQn1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 a5 Kf3 f5 Kf4 g6 e4 a4 d4 a3 b4 a2 h4 Qe7 h6 Bd7 h7 Qf7 e6 g5+ Ke5 f4 e7 f3 b6 g4 b7 g3 h5 f2 d6 Bh6 b5 Qf3 d5 Qg4 b6 Qe2 Nh3 Ra7 Ng5 Ra4 Na3 Bg4 Bg2 f1N Ne6 Bh3 d7+ Kf7 d8Q Qe3 d6 Qf2 d7 Rc4 Nc2 Na6 b8Q Bg5 h6 Be3 b7 Ba7 Qdc8 Qe3 d8Q Rd4 Nc5 Bd7 e8B+ Kf8 Qf3+ Bf5 Bb5+ Kf7 Qa8 Qd2 b8Q Qe2 Ba3 Nb4 Rd1 a1Q Rd2 Qa2 Na1 Qe3 Qb6 Qb1 Qba6 Nh2 Ba4 Qbb3 Qaf1 Nc2 Qdd5+ Ke7 Qac6 Qb6 Qa2 Bg6 Qcf5 Kd8 Ke6 Ne7 e5 Ne1 Bb5 Qb8 Qce4 Qb7 Qed3 Qbe4 Ba4 Qh4 Bb5 Qh3 Ba4 Rg8 h8Q Be8 h7 Rg5 Qg8 Ng6 h8Q Rh5 Qgg7 Bb6 Qhh6 Nh8 Qhf4 Rd7 Qfc4 Rd4 Qc1 Bg6 Kf6 Bh7 e6 Bg8 Qgg5 Ba5 Qe5 Bc3 e7+ Kc8 e8B Kd8 Bec6 Bb3 Qgf5 Bb2 Bcb5 Bc3 Qf3e2 Nhf3 Qef2 Ng1 Q2f3 Rd5 Ke6 Bd4 Qee4 Bf6 Qe5 Bh4 Be8 Rd4+ Qcc4 Rh7 Qab1 Qh2 Qa2 Be7 Beb5 Qh5 Rh3 Qg4 Rh4 Qh3 Rh5 Rg7 Rh6 Rg5 Re2 Rh5 Rd2 Rd5 Qcc3 Bh4 Qc1 Rd4+
RN1B1Q2/R1p2B2/R3R3/1p2b2n/1Bk5/Qn2BRq1/p1rr1RN1/R3Kb1b w - - 0 1 illegal: No proof kernel
NBk5/1N3B1K/1R2r1Q1/B2RQ2b/np1r2BQ/nQrb3Q/2r3B1/3Q4 w - - 0 1 legal: proof: b4 b5 h4 g5 hxg5 f5 e4 d5 exf5 a5 bxa5 d4 c4 d3 a4 c6 a6 Be6 a7 Qb6 a5 Qd8 a6 Qd5 cxd5 Bd7 Bxd3 Be6 Be2 Nd7 Bf1 Rc8 a8B Nc5 a7 Na6 Rh4 Rd8 Rh2 Bh6 Rxh6 Bc8 Rh1 Bd7 Ke2 e5 Kd3 h5 Ke4 h4 d4 b4 g4 c5 f4 h3 g6 c4 f6 h2 f5 c3 d6 c2 d5 Rc8 f7+ Kd8 f8Q+ Be8 g7 Rc3 f6 Re3+ Kf5 e4 d7 Kc7 d8B+ Kc8 f7 Bb5 Kg6 Rhh3 g5 Bc4 d6 Nc7 Nf3 Ra3 Nc3 e3 Nh4 e2 Nb5 e1R Qe7 Nd5 f8Q Nc7 Bd5 Raf3 a8B Bd3+ Qf5+ Re6+ Kh7 Be4 d7+ Kb8 g6 Re3 Ra6 Rb3 Be2 Rhc3 Qh3 Bg2 Bf4 c1R Bg4 Rcb1 Nf5 Rb6 Qe5 Rc2 Nfd6 Rc5 Bf7 Be4 Nb7 Ne7 g8Q Re6 Rb6 Rc2 Rg1 Bf3 g7 h1B Rg3 Be2 Rd3 Bhf3 Rd5 Rbc3 Qe8 Rbb3 g8Q Nc8 Qg6 Rc4 Qeg8 Rd4 Bg3 Bd3 Bf4 Nd6 Bh2 Na6 Nc7 Bfe2 Rc5 Bf5 Rbc6 Bfd3 Qee4 Ra3 Bf3 Nb5 Nd6 Bc4 Q8g7 Raa2 Qed3 Re8 Qb3 Rc3 Bb7 Rg4 Na8 Rg3 Ba5 Rg4 Rb6 Re6 Rh5 Bcd3 d8Q+ Rc8 Qdh4 Na3 Bg2 Rd4 Qh8 Nc5 Bbf3+ Nb7 Rd5 Rc2 Q8f6 R8c3 Bh5 Ka7 Bf4 Nc5 Nb7 Na4 Bd6 Bg4 Qe5 Bf3 Nc7 Kb8 Na8+ Kc8 Bb8 Bfe4 Bhf3 Bf5 Be2 Bg4 Bef3 Bh5 Be2 Bc4 Bg4 Bd3
b2r2k1/3RB2p/2QN4/1q2Rr2/KR1qR1qr/3Rn1B1/pQ2BB2/4BR1N w - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 d4 h4 d3 f4 g4 f6 Bh6 cxd3 Bg5 hxg5 Nc6 d4 Kf7 d5 Nd4 Nh3 Nf5 exf5 Kf8 Ng1 Ke8 d4 Kf8 Kd2 e5 Kc2 c5 Kb3 a5 f7 g3 b6 e4 d6 e3 d7 g2 g6 c4+ Ka4 e2 b4 e1Q g7+ Ke7 f8R c3 d5 c2 b7 Qe3 b8Q Qa7 b5 Nf6 g8R Qb7 b6 Nh5 Rh4 Ra6 Rg5 Qbc7 f6+ Kd6 b7 Qe8 f5 Qf7 d8R+ Ke5 d6 Qd5 d7 Ng3 f7 Kf6 Rb4 Qf3 Ne2 g1R Qd5 Qf2 Rfe8 Qf3 f8B Qb6 Bc5 Nh1 Na3 Qc3 Nc4 Ra7 Bd2 c1Q Nd6 Nf2 Ng3 Qe1 Nh1 Qd4 Be2 Rf1 Re4 Ng4 Qc6 Qh4 Be1 Ne3 Rh5 Kg7 f6+ Kg6 f7 Kg7 f8B+ Kg8 Rd5 Rf5 Rde5 Qg4 Rd1 Ra6 Rd3 Ra7 Rde8 Qa6 d8R Qac4 Rd7 Qb5+ Ka3 a4 Be7+ Kg7 Bb6 Rhf8 Rf4 Kg8 Rf1 Ra6 Qa7 Ra5 b8B Bb7 Qa6 Ba8 Qab7 Rh5 B6a7 Qa6 Re4 Raf5 Qbb5 Rh4 Qe5 Qdc4 Qb2 Qab5 Re5 Nd1 Baf2 Qcd4 Ka2 a3 Kb3 a2 Re4 Qbb6 Ka4 Ne3 Nb7 Rhh5 Bbg3 Rh4 Nd6 Qb8 Bd8 Qbb6 R8e5 Qb8 Bg5 Rd8 Be7 Qb5+
n2N3R/Qrnq2K1/3R1N1B/1kN2q2/NpN1RpB1/2R2q1R/3Q1n1r/R7 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 d4 g5 d3 cxd3 Nc6 d4 Nb8 d5 Kd7 Bg2 Ke7 Bf1 Ke8 h3 Bd7 Bg2 Be7 Nf3 Bf6 gxf6 g5 Nh4 g4 Nf3 g3 Bf1 Be6 Ng1 Bf7 Qb3 Bh5 Qd1 Bg4 hxg4 Qd7 Nc3 Qc8 Nb1 Qd8 a4 Kd7 e4 c5 Ke2 b5 Kf3 h5 Kf4 h4 Kg5 c4 Kg6 b4 d4 c3 g5 h3 e6+ Kc7 f7 c2 f8N g2 e7 h2 e8N+ Kb7 e5 Ra7 d6 Kc6 d5+ Kc5 a6 Rh3 e6 Rah7 a5 Qd7 a7 Qb5 a8Q Qa4 a6 Rc3 d7 Nc6 d8R Rb7 a7 Rh7 e7 Qa6 d6 Rg3 d7 Nf6 Ne2 g1Q Na3 Nh5 Nf6 Rh3 e8R Qg3 Ne6+ Kb6 Nc3 Qa4 Nc5 Rh8 Qd2 Nd4 Be2 Qf3 Re4 Nf4+ Kg7 Nb5 g6 Nc7 Rc8 Qa5 d8N Nfd5 Rd1 Qb5 N3a4+ Ka5 Qb7 h1N Qb8 Qb7 Nc4+ Kb5 a8R Nf2 Qa7 Nb6 Rh1 Rg3 Rh3 Rg2 Rab8 Nba8 Bd1 Rh2 Be2 Qf4 Bh5 Qf3 Bg4 Nd5+ Rc7 Rf8 Rd7 Ndc7 Rc8 Qc6 Rd6 Rf7+ Kg8 Re7 g7 Qd7 Kh7 Rf7 Kg6 Re7 g8R Rf7 Rgh8 Rh7 Bb2 c1Q Be5 Re7 Bf4 Qb1 Bh6 f4 Nf7 Qbd3 Kg7 Nd5 Rcc6 Qf5 Rcc8 Rb7 Rcc6 Ndc7 Nd8 Qde3 Rd3 Qd4 Rd6 Qdd5 Rda3 Qde6 Rc3 Qd7+
1qB3nk/bN5q/4Rp1B/2R1BB1Q/6BQ/qb4q1/rN1NN1Kp/N5N1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 d5 axb5 f6 g4 a6 c4 Bd7 cxd5 Be7 g5 Bc8 g6 Bf8 h4 a5 Ra3 Nc6 Rb3 Kd7 Rc3 Nd4 Rb3 Ne6 Rf3 Ng5 Ra3 Nf7 gxf7 g5 Ra4 g4 Ra1 Ne7 Ra4 Rg8 Ra3 Rg5 hxg5 Ng8 Ra1 Qe8 Nh3 Bg7 Rh2 Ba6 Na3 Nh6 Bg2 Qe7 Nb1 Rh8 Ng1 Bf8 Bh3 Qd8 Rh1 Ng8 Bf1 Bc8 Kf2 Ke7 b4 h5 e4 c5 d4 g3+ Kg2 c4 b6 a4 b5 h4 b7 c3 b8Q c2 e6 a3 g6 a2 g7 Qd6 e5 Qa3 b6 Qb4 b7 Qa5 d6+ Kd8 e7+ Kd7 e8N Ke6 d7 Qe1 d8N+ Kf5 e6 Kg6 d5 Kh7 d6 Ne7 g8B+ Kg6 d7 Nf5 e7 Bh6 Bd3 Bg7 Nc6 Qe3 f8N+ Kh6 d8N Qf4 Nd7 Qg5 Nd2 Rh7 Qf4 Nd4 b8B Bf8 Nc5 Nf5 Nd6 Kg7 e8B Qh5 Ncb3 Be6 Bd7 Ne7 Ncd4 Kh8 Nde2 Bh6 Bf7 Ng8 Bf5 Bc4 Qg4 Be3 Bf7e6 Ba7 N8b7 Rg7 Rh2 Qh7 Bc8 Rc7 Rb1 a1Q Qe1 Qa5 Na1 Bb3 N6c4 Qb5 Qh5 Rc6 Qf2 Ra6 Be5 Ra2 Nb2 Qe8 Bg4 Qd8 Bef5 h3+ Kf1 Qd6 Rh1 h2 Kg2 Qb8 Qf4 Bc4 Qfg5 Bf7 Qgh4 Be6 Nbc4 Bf7 Rb5 Be6 Nb2 Bb3 Kh3 g2 Rc5 Bf7 Ngf3 Bc4 Re1 Bb3 Kg3 g1Q+ Kh3 Qd4 Kg2 Qc3 Nfg1 Qe3 Ne4 Qd3 Bh6 c1Q Nd2 Qcc3 Rc6 Qc5 Re6 Qdc3 Rc1 Qa3 Rc2 Qd3 Rc5 Qg3+
R1Qqb3/N1p1Rqq1/3Q2Rb/1NNKB3/R7/4N1pN/R1B1k1n1/4q1Rn w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Na5 axb3 Nc6 b4 Nb8 b5 Ba6 Nf3 Bb7 Ng1 Bc8 h3 a5 Qa4 g5 Qd1 h5 Qf3 Ra6 Qd1 Rc6 Nf3 Rc4 Ng1 Rf4 h4 Rf5 gxf5 g4 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 d4+ Kg3 b4 Kf2 b6 e5 b7 h4 d6 g3 d5 h3 b5 h2 b6 e4 g6 a4 d7 e3 d6 a3 g7 e2 Bf4 e1Q Nc3 a2 Bd3 Qe5 Nb5 Qee8 Be5 Qde7 d8R Bd7 Bc2 Nc6 b8N Nb4 b7 Nd5 Na6 Bc6 b8R Q7d7 Nh3+ Ke3 Ra8 Nge7 g8R Nb4 Rg1 h1Q Nc5 Ng6 Ra4 Be4 Rda8 Ne7 Rg6 Qdc8 d7 Qh2 d8N Nbc6 Qd6 Bh6 f8N Qb8 f7 Nd5 f6 Qh1 Nfe6 Ke2 f8Q Nf4 f7 Ng2 Ng7 Nb4 Nf5 Nd3 Ne3 Nf2 Nc6 Qbd8 Nca7 Bc6 Qg8 Qed7 f8R Qf7+ Kd4 Bd7 Re8 Bc6 Re7 Be8 Rab1 a1Q+ Rb2 Qe1 Rba2 Qg7 Kc4 Qh2 Kd5 Nh1 Nf2 Qh4 Nh3 Qhf6 Qe6 Qff1 Qc8 Qff7+
2QR4/BB1R1B1p/K1N2Rbq/2n1BN2/2q1B2R/3b4/kprp3R/2r2QB1 w - - 0 1 illegal: No possible last move
2N4q/N1RQrk1p/1N1p4/1BBqp1R1/1R1pK1NB/1nb3N1/8/2r1R1BR w - - 0 1 illegal: Other
qkr1B3/N4Kb1/b1br3N/N1NqB2N/7Q/2R1R1Q1/B1r1Bn2/qN3n1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 Kc7+ e6 h5 g4 f6 Kg6 h4 b4 f5 d4 c4 e4 a4 d6+ Kb7 e5 h3 b6 c3 b5 h2 d5 f4 d7 a3 e7 a2 e8B c2 e6 f3 d6 f2 e7 Bh6 Kf7 Ra5 g6 Rh7+ g7 Ra3 g5 Qc7 d8N+ Ka8 d7 Qe5 g6 Na6 b7+ Kb8 Be2 f1R+ Bf4 c1Q Qd6+ Ka7 b8N Qe1 b6+ Ka8 b7+ Ka7 Nbc6+ Kb6 b8N Rc3 Na7+ Rc6 Nh3 Nc7 Nb7 Qb5 d8Q Nf6 Na6 Rh8 g8N Ne4 g7 Rf2 Nac5 Qea5 Rc1 h1B Rc3 Rg2 Qd3 Nf2 Be5 Rd6 Bc6 Qa3 Na5 Ba6 e8B Qc4+ Kf8 Qd5 Nf4 Qa4 Qh4 Rh2 Nd2 Rg2 Re1 a1Q Qdg3 Rh2 Bcd7 Qac6 Be6 Qa8 Nb1 Bf3 Kf7 Be4 Nf6 Rg2 g8B Bg7 Ng4 Bf3 B8b5 Rh2 Bh7 Rc8 Nh6 Qe4 Be8 Nh1 B2c4 Nd5 Qg2 Kc7 Nh5 Kb8 Qgg3 Ne3 Re2 Qec6 Be4 Nf1 Ree3 Rc2 Be2 Nf2 Ba2 Bg2 Bf5 Qe4 Bh3 Bf3 Bg2 Qd3 Bh1 Bc6 Bd4 Qe4 Be5 Qd5+
4RRNB/rb2rNB1/5bn1/qqNbNR2/4Q3/BrkB4/4R2n/KB3qR1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kf7 Kd2 e5 Kc2 h5 f4 c5 g4 a5 b4 a4 Kb2 c4 g6+ Kf6 b6 h4 g5+ Ke7 b5 Kd6 g7 e4 f6 e3 f7 e2 f5 e1Q b7 h3 b6 h2 f6 Ra6 g6 Qe5 Qd3 Qe1 Nd2 Qde8 Ne4+ Kd7 d6 Kc6 d5+ Kb5 d7 Kb4 d8B Be6 d6 Nc6 b8R Rh5 b7 Be7 f8R Rd5 f7 Bd7 Ra2 a3+ Ka1 c3 Re2 a2 Nf3 c2 Nc5 Rd4 Qe4 Be6 d7 Bd5 Rg1 h1B Ne5 Nh6 g8B Rb6 g7 Ng4 Bh7 Kc3 g8N Nh2 Bg6 Qd2 Ba3 Rb3 Bc7 Rdb4 d8N Bf6 Rc8 Rb6 b8R Ne7 Rb7 Rd6 Rb5 Re6 Bb8 Qd7 Re8 Bg2 f8B Qg5 Bh7 Ng6 Ndf7 Re7 Bg7 Qc7 Rf8 Qa5 Rce8 Bh1 Rd2 Bg2 Bd3 c1Q+ Bb1 Qe1 Re2 Qf1 Nc4 Qd2 Bh8 Qa4 Qf4 Bde4 Nb7 Ne5 Bc5 Qd8 Ra5 Bc6 Bd3 Bg7 Bc7 Bgd5 Qe4 Ng6 Bb8 Bd4 Bbe5 Be6 Beg7 Bf6 Bd6 Qb4 Rf5 Qb5 Nce5 Bed5 Bc5 Ra3 Bd6 Ra7 Ba3 Qda5 Nc5 Ba8 Bc1 Bab7 Bc4 Kb4 Kb2 a1R Bcd3+ Bc4 Qg4 Ra3 Qf3 Ba2 Ka1 Kc3 Qe4 Bad5+ Ra2 Ra4 Ba3 Rb4 Re2 Rb3
NK2NR2/NN3Rn1/2nrQ1R1/q3bnN1/2b1N2R/B1Q3rB/1R2n3/k2br3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 a3 f7 h3 g6 c4 g5 a2 f5 h2 b6 c3 d6 c2 g7 Kb3 b7 Rh7 f6 Rh3 g6 Ra6 Qd4 Rh6 Nf3 Qc7 d8N Qc3 d7 Rh8 Ng5 Ra4 Nc6 Rh7 d8N Na6 b8N Rh3 Nb7 Ne7 Kd6 e5 g8Q e4 g7 e3 Nd7 e2 Nb6 e1N Na7 Nb4 Na8 Rh7 Bh3 Nbc6 Kc7 Nf5 Qe3 Ba3 f8R+ Be6 f7 Ng2 Qd3 Nge3 Nd2+ Kb4 b3 Rh6 Nde4 Bb2 Rg1 Ka3 b4 h1B b5 Bg2 b6 Bc4 Qd4 Qa5 Qc3+ Bb3 Rb1 Bf1 Rg4 a1R Rh4 Ka2 Kc8 Nce7+ Kc7 Rd6 Kb8 Ba3 Bb2 Bfc4 Rg1 c1N Rg3 Bb4 Ba3 Ne2 Rc8 Nfd4 Rf3 Ndc6+ Kc7 Nc2 Nd2 Be6 Nc5 Rd3 Nde4 Rf1 f8N Kb1 Nfd7 Nc2d4 Ndf6 Re3 Rff4 Rg3 Rf8 Re1 Ne8 Bd1 Rf2 Beb3 Qe6 Ka2 g8R Kb1 Qd3+ Ka1 R2f7 Bc3 Rg6 Rb4 Qdc4 Rb5 Qd3 Bc4 Qf3 Rb2 Qff6 Rd2 Qh8 Qb4 b7 Bb2 b8R Qa5+ Rb6 Rdd3 Nb7 Bc3 Qd6 Nef5 Qhe5 Ng7 Qde6 Rd2 Kc8 Ndf5 Rb2 Rd6 Qd4 Qc5 Qd2 Be5 Qc3 Qb4 Kc7 Qa5+ Kc8 Nb4 Kb8 Nc6+
1Q1R1rk1/qB6/1Nb2nB1/R1R3r1/4B2N/q1BN1Rb1/nr6/qNrB2KN w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 g4 a5 d4 f5 b4 Kf7 e4 c5 b6 c4 b5 a4 e6+ Kg7 b7 a3 b6 h4 d6 h3 g6 c3 e7 c2 e8B h2 g5 f4 e5 f3 d7 a2 d5 Ra7 d6 Ra3 e6 Rh7 e7 Qc7 d8N Nh6 d7 Rd3 Nc6 Qe5 d8R Ng8 Nb4 Bh3 Ba4 Qe4 e8B Be7 Bg2 Qe5 Bb2 c1Q Ne2 Rb3 Rf1 h1Q Ng3 Bd6 Bc3 Rh5 Nd3 Nc6 b8R Nge7 b7 Rh7 Rbc8 Qa3 b8N Rb6 Nd7 Nf5 Qb3 Rb5 Nb6 Nb4 Rc5 Nh6 Qb2 Bb8 Bd1 Kg8 g7 Bd7 Bg6+ Be8 Be4 Qe7 Bg6 Qea7 Be4 Qh3 Kg1 Ng4 Nh1 Bg3 Bb7 Rh5 Be4 Kf7 g8N Bc6 Ne7 Nf6 g6+ Kg7 Qb3 Rg5 Rf2 Qh7 Rf1 Qg8 Nf5+ Kh8 g7+ Kh7 Rdd5 Qga8 g8B+ Kh8 Bf7 Kh7 Bg6+ Kg8 Nd7 Rb7 Nh4 Rb8 Re1 Rf8 Nb6 f2+ Kf1 Rb8 Re3 Rb7 Rf3 Rb8 Ke2 f1R Qb2 Rf8 Rd8 Rf2+ Ke1 Rc2+ Kf1 Re2 Kg1 Rc2 Qc1 Rb2 Qf4 Q7a4 Bh3 Q8a7 Bc8 Q4a6 Bb7 Q6a4 Nd2 Q4a5 Qb8 Q5a4 Rc1 a1R Ra5 Na2 Rc2 Rc1 Nb1 Kg7 Be5 Kg8 Rcc5 Nb4 Bc3 Qa1 Bc8 Na2 Bb7 Qa3
nB1Qn1Nr/1n2R3/bB3NK1/1NB1RN2/BnN2k2/2Q1r1b1/3B1bb1/B4q2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 c5 g4 h5 b4 e6 b6 h4 b5 h3 f6 c4 g6 h2 Kg5 c3 f4 c2 f5 a4 g7 e5 b7 e4 b6 a3 Bb5 a2 Na3 e3 Qd2 e2 Ba4 e1N Qc3 Nd3 Nf3 Bd7 Ne5 Qe8 f7 Qc8 f6 Bb5 Bd2 c1B Re1 h1B Kg6 Qe6 g5 Bc6 Nec4+ Kd7 d6 Bf3 d5 Nb4 Nb5 Ra7 Re5 Bb2 Rae1 Nh6 g8N a1N Ne7 Ng8 Nf5 N8a6 b8B Bg2 b7 Nb3 R1e3 Bg7 f8B Nbc5 Bc7 Ba1 b8B Bb7 Bb6 Nc7 R3e4 Qe7 f7 Ba6 Re2 Qd8 Be7 Na8 f8N+ Ke8 R2e3 Nf6 Nh7 Kd7 R3e4 Ne8 Nf6+ Kc8 Bf8 Re7 d7+ Kb7 d6 Kc6 Re1 Nb7 Bc5 Qc7 d8B Bb2 d7 Ba3 R5e4 Qf4 Re5 Qf1 Bdb6 Bc1 d8Q Ba3 Rd5 Re3 Re5 Bc1 Bfd6 Bf8 Bdc7 Bd6 Re7 Bg3 Be5 Bf2 Bed4 Rf3 R1e5 Re3 Qb3 Bg3 Ba1 Bb2 Qa3 Bd4 Qc1 Re2 Qc3 Bdf2 Kf7 Re3 g6 Qe1 g7 Qf1 g8N Qd1 Nd7 Qf1 R5e6+ Kd5 Kg6 Rf3 Re2 Re3 Re1 Be5 Re2 Ke4 Ndf6+ Kf3 Re1 Beg3 Re2 Rd3 R2e4 Re3 R4e5 Kf4
nb1kNQ1q/1R2NR2/2b3Rr/2NNnQ2/2bK2p1/2R3r1/1BBr2R1/1N1nN3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Ke3 g5 h4 a5 b4 f5 d4 c4 d6 a4 e6 c3 d5 f4+ Kd4 g4 e4 a3 b6 f3 d7+ Ke7 e5 a2 b7 f2 b5 c2 b6 Rh6 Qf3 Rh8 h6 Ra6 h5 Qe8 d8R Qb5 h7 Bd7 h6 Qa5 Bb2 c1R Rh3 Rd1+ Bd3 f1B Qf5 Re1 Bc2 Rc1 Rc3 Re1 Nf3 Be8 Rd6 Rc1 Ne1 Nd7 b8Q Bh5 b7 Ndf6 Qc8 Bg6 b8R Ra7 Rb7+ Nd7 Ra6 Qd8 d6+ Ke8 e7 Nb6 Qb8 Nf6 d7+ Kf7 e8N Ke7 e6 Na8 Nc7 Be8 Rd6 Qc8 d8N Bc6 Nd5+ Ke8 e7 Ra3 Ne6 Bc4 Nc5 Nd7 Rg6 Ne5 Ng2 Rg1 Ne1 Rg3 Qd6 Ra6 Qb8 Rg8 h8N Qd8 h7 Bh6 Rg7 Bf4 Rf7 Rg6 Qd6 Rh6 Ng6 Ra4 Nf8 Ra6 h8R Rh2 Rh6 Rd2+ Ned3 Qb8 Ng6 Rb6 Rh2 Qc8 Rg2 Qb8 Na3 Qc8 Rh1 a1N Nb1 Qd8 Rh6 Qb8 Ke4 Qc8 Ne1 Qb8 Bd1 Nc2 Qdf6 Ne3 Bc2 Nd1 Qg7 Nd3 Kd4 Bd6 Ne6 Bc7 Qf8+ Kd7 e8N+ Kc8 Ng5+ Kd8 Nge7 Qc8 Ne4 Bb8 Nc5 Ne5+ Bd3 Qe6 Rg6 Qf6 Qf1 Qh8 Qf5 B6b5 Rg5 Rh6 Rg6 Re2 Be4 Bc6 Bc2 Rd2+
r3N3/3p3R/Kn2b2N/2Q1R3/B2q1r2/b1BnQBQQ/1BrBQb2/nk2B3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 b4 e5 f4 g5 b6 a5 Kb5 g4 c4 a4 f6 a3 c6 a2 f5 g3 c5 g2 c7 Bh6 b7 Bg5 c6 Qe8 h6 Ra3 h7 Nh6 f7 Qf8 h5 Ra8 f6 Ra7 Qe2+ Kd4 Bd2 e4 Nc3 e3 Nh3 g1N Re1 a1B Ne4 Ra8 Nhf2 Na6 b8Q Bc3 Nd6 Rg8 h8B Qd8 f8B Bb2 f7+ Bf6 Qb6+ Nc5 Ne8 Ra1 Ng4 Ra7 Bfg7 Ra2 f8B Nf7 h6 Qe7 h7 Nh3 Nh6 Bb7 c8Q Nf2 c7 Ba3 Bg2 Qd6 Bc6 Qe5 Bd6 Qe4 Bg3 Nd3 Ka5 Qg4 Ba4 Rc2 b5 Nfe5 Qa7 Qh4 b6 Bd5 b7 Be6 b8Q Nc4+ Kb5 Nb6 Rh2 Nb7 Ka6 Na5 Rh3 Ke4 Rhh1 Ba1 Bb2 Nb3 Bhc3 Rg4 h8Q Rf4 Bf2 Qf6 Rh5 Qd4 Reh1 Bg4 Bfe1 Be6 Qf1 e2 Rd5 Nf2 Re5+ Kd3 Rh4 Rc1 Qh3+ Kc2 Qf8 Kb1 Qc5 Rc2 Qd8 Rf6 c8B Nd3 Qde7 Rf1 Bb7 Rf4 Bf2 e1R Bf3 Rg1 Bfe1 Rg8 Qbd6 Bd5 Qg6 Be6 Qgg3 Rgf8 Qh7 Rg8 Qe4 Rgf8 Bbc1 B1b2 Qe2 Na1 Rhh5 Qd5 Qce3 Qd4 Qc7 Bc5 Qc8 Bba3 B1b2 Be7 Qc5 Bh4 Nf5 Rh8 Rh7 Rf8 Nh6 Rh8 Qgh2 Bf2 Q2g3 Rg8 Ng7 Rd8 Ne8 Ra8+
3B4/NK4NR/B1Bbbbk1/n7/n1Q4q/Br1NqB2/2QN1Np1/3Rr1Nr w - - 0 1 illegal: No possible last move
k1r2bn1/3K4/3BBN1r/2N1BBNQ/2bB1b1r/b1R4q/1QR1BN1p/N6n w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 Kb7 g4 h5 b4 a5 d4 h4 f4 h3 g6 e6 g7 h2 f6 a4 d6 c4 d5 c3 f7 c2 d7 a3 g5 a2 f5 Qe8 d8N+ Ka7 g6 Bb7 d6 Rh3 d7 Rd3 b6+ Ka6 f6 Qe7 b5+ Ka5 Be3 c1B Nh3 Qa3 Qh5 Qb2+ Bd4 Bc5 f8B Qa3 f7 Bd2 Nf2 Bc1 Bd6 Rf3 f8N Ra7 Nh7 Ra8 Nf7 Qb2 d8N Be3 Na3 Qc3 Nf6 Ba6 b7 Kb6 Nc2 Ka7 Ng5 Rh3 Rc1 a1B Be2 Bb2 Na1 Rh4 Rc2 Ba3 Rhc1 Qd3 Rc3 Bd2 R1c2 Qh3 Ndf7 Bdc1 Nge4 Bd2 Nfg5 Bdc1 Nd7 Be3 Nef6 Bf4+ Ke4 e5 Kd5 Nc6 b8B+ Kb7 b6 e4 B6e5 Bf8 Bbd6 Rc8 Nc5+ Ka8 b7+ Ka7 Qg4 e3 Ke6 Nb4 Kd7 Bc4 Qf5 Ne7 g8B Nd3 Be6 Ng8 g7 Rh6 Qh7 Rh4 Bf5 Rh6 Bf1 e2 Qh8 e1R Be2 Rh4 Qh5 Rb1 Rc1 Rb6 R1c2 Ne7 g8B Ra6 N2g4 Nf2 Bge6 Nh1 Nf2 Rac6 Bf7 Rb6 B7e6 Ng8 Ncd3 Ka6 b8Q Rbc6 Qb4 Rb6 Nc5+ Ka7 Qb2 Ka8 Qa2 Rb1 Qb2 Rg1 Nf3 Rg6 Ng5 Rh6
1Kbn4/3BQ1nN/1b2Q3/N3p1BN/2bq1QNN/R2N1R1Q/q1r4r/4Qb1k w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 a5 Ke4 h5 Ke5 d5 b4 h4 f4 d4 g4 h3 c4 h2 g6+ Kg7 b6 Kh6 c6 e6 b5 a4 c7 a3 c5 a2 f6 d3 b7 d2 b6 Qe8 g7 Na6 b8Q Ra7 f5 Kg5 f7 Kh4 f6 Kg3 g5 Bd7 c8Q Be7 f8Q Rb7 g6 Nb4 c6 Rh6 f7 Ra7 c7 Na6 b7 Rh7 Nc3 Bh4 Kd6 Nh6 g8N Ra8 g7 Rh8 Nd5 Ra7 Bh3 Kf2 Ngf6 Ba4 g8N Rh7 Nb4 Bb3 Nf3 Qa4 Nh5 Bd8 Qe7 Nc5 f8N Bc4 Nh4 e5 Ngf6 Qc2 Bd7 Nf7+ Kc6 Rh6 Nh7 Ne6 Rg1 Qb2 Rg3 h1B+ Kb6 Bf1 Rf3+ Kg1 Qe1 d1B Bg5 Bb3 Ng4 Qd4+ Kc6 Ra4 Nd3 Bc4 Qa7 Rb4 b8N Rb2 Qa4 Rc2 Kb7 Ng7 Nc6 Bg2 Na5 Bh3 Kb8 Kh1 Ne3 Bhe6 Ng4 Bf5 Qa6 Bfe6 c8Q Bb6 Qab4 Nd8 Qbd2 Bf5 Qf4 Bfe6 Rb1 a1Q Rb3 Qa2 Ra3 Bcd5 Qac4 Bb7 Qb3 Bc4 Qc6 Bc8 Qce6 Rf6 Qfg3 Rf4 Qbb4 Rh2 Qh3 Re4 Qbd2 Re2 Qf4 Rc2
B7/1b2bR1B/1Rp2r1k/1n2Br2/n1qRKNRN/1r3r2/N1Q1N1Bq/1B2N3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Kf3 Kf7 b4 Kg6 g4 h5 e4 a5 d4 f4 d6 a4 b6 h4 e6 a3 e7 h3 e8B+ Kh7 e5 h2 d7 a2 b7 Bh6 d5 Ra3+ Ke4 f3 e6 f2 e7 Rd3 g6+ Kg7 g5 Nc6 b8R Rc3 d6 Rh7 b5 Rh8 b6 Rb3 b7 Nd4 Nf3 Rb4 Bg2 f1Q Ne1 Qf7 Rg1 h1R Bf4 Rc4 Qc2 Rc5 Nc3 Ne6 Ne2 Qf6 Be5 Rc3 Rd1 a1R Rd4 Rca3 Bf7 Nf8 e8B Nh7 Bd5 Qe7 d8N Rc1 d7 Nf8 Nc6 Qb4 d8N Qc4 Nb4 Rf3 Na2 Rh5 Bd7 Rb3 Bf5 Nd7 Rf1 Ne7 Ne6+ Kg8 g7 Nb6 Rg1 Na4 N6f4+ Qf7 Ra8 Nc6 b8R Na7 Rb6 Nb5 Ra7 Bb7 Bc6 Qe7 Bh7+ Kf7 g8N Qd6 Ne7 Bf8 Nf5 Be7 Nh4 Rf8 Bf5 Kg8 g6 Rf6 g7 Rf3 Bg6 Rb1 Bh7+ Kf7 g8B+ Kg7 Bf5 Rg5 Bgh7 Rbb3 Bfg6 Rf5 Bd5 Bc8 Ba8 c6 Rab7 Kh6 Rc7 Bd8 Rf7 Ba6 Bh1 Be7 Rg4 Qc7 Bg2 Bb7 Nd5 Na3 Qb2 Bd8 Bd6 R5f4+ Ke5 Nc5 Bb1 Na4 Qc2 R4f5+ Ke4 Qb8 Bc5 Qh2 Ndf4 Be7 Bd6 Nb5 Bc7 Rb2 Be5 Rbb3
3BRR2/4RRBB/1pQ1bnRr/p2n2RB/1br5/1K1q1b2/N5Qq/2NkB3 w - - 0 1 illegal: No proof kernel
3q4/2k1bBpr/2N2Q1p/4KbrQ/q1RnNR1b/4QNN1/3N1QNn/Q5B1 w - - 0 1 illegal: No proof kernel
1N1bB1b1/BNR2RRp/r5q1/K3n1R1/Q1Nn2p1/1p6/2QR1NR1/1N2k1nr w - - 0 1 illegal: No proof kernel
1BN2r1B/NQB1pr1n/1b3R2/N1KB1q2/brn2p2/RQ3N1N/pN6/2kB4 w - - 0 1 illegal: No possible last move
K5QN/1p3p1r/1Nb2b1N/2B4k/q1BN4/rpQ1N1nn/1R6/1QbN1QQR w - - 0 1 illegal: Other
q3R1n1/q1RN3k/QR1N1B1b/5r1N/K3B2N/b1N3Nn/5br1/R1BQ2r1 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 b4 e5 d4 c5 Kd2 h5 Kc3 a5 Kb3 c4+ Ka4 c3 f6 h4 b7 c2 g7 Kf7 d6 Kg6 b5 e4 d5 e3 b6 e2 f7 e1Q d7 h3 d6 h2 Nc3 Rh4 Nge2 Qf6 d8B Rh6 d7 Qd2 Bg2 Qf1 Ng3 Na6 b8N Qd5 b7 Qfd3 Bf6 Rh3 d8N Qe5 Nd7 Qed5 b8R Ba3 Nb7 Nc7 Nd6 Kh7 Rb6 Qe3 f8Q Ne6 Qc8 Qf2 Qa6 Nf4 Rg1 Rh6 Be4+ Rg6 Re1 h1R Rf1 Nh6 g8N Rg1 Ne7 Nh3 Nef5 Rf8 Nh4 Ng8 Re1 Qfc5 Rf1 Qe3 Rf5 Qb7 Rc5 Qa8 Rc7 Qc5 Bg7 Rf5 Bf6 Rg7 g6+ Kh8 Bb2 c1B g5 Be3 Bc1 Bf2 Rbb1 Qca7 Rb6 Nh6 Be7 Rg8 g7+ Kh7 Bd8 Rf8 Be7 Ng8 Bf6 Re8 Bc6 Re2 Be4 Nh6 g8R Rc2 Re8 Ng8 Re5 Rd2 Kb5 a4 g6+ Kh6 g7 Kh7 Ka5 Nh6 g8N Bfc5 Rcc6 Rdg2 Ne7 Ng8 Neg6 Be3 Rc7 Bh6 Bb1 Bc5 Nf4 Bf2 Be4 a3 Ka4 a2 Rab1 a1B Re8 Bb2 Ra1 Ba3 Nfh5 Bd2 Bd8 Bde3 Bf6 Bh6
2r1q3/6bk/3R1RN1/1R1n1KR1/1b1NbQ1r/Rn2Q3/B1QQ1B2/b1Bb2R1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ba3 Kf7 Ke2 Kg7 Kf3 h5 Ke4 c5 f4 e5 d4 c4 g4 h4 f6+ Kg6 d6 h3 f7 h2 d7 c3 f5+ Kh7 b6 c2 b7 c1B d5 Bf4 a6 Qa5 d8Q Qb4+ Bc4 Qa4 f6 Nd7 b8B Qc6 g6+ Kh6 a7 Be3 g7 Qc7 d6 Qc5 g5+ Kg6 Nh3 Qb5 Nf4+ Kh7 g6+ Kh6 Nc3 Bb6 Bc1 Be7 f8Q Qa4 f7 Bc5 Rg1 Qa3 Qc2 Bh4 Nb5 Be3 Ba2 Ne7 Rb1 Bf6 g8Q+ Bg7 Qa5 Bd4 Qad2 Qa4 Bc7 Ba6 Bb6 Rc8 a8R Ba1+ Rb4 Rh7 Bf2 Rh8 Nc7 Bb5 Nce6 Be2 Ra6 Qb5 Ra3 Bd1 Rb1 Nd5 Qe7 h1B+ Kf5 e4 f8R e3 Rf6 e2 Nd4 Bf8 Qee3 Nc5 d7 Bd6 d8R Bf8 Rdd6 Qe8 Rbb6 Nb3 Rb5 Nb4 Qd5 Bf3 Qde5 Nd5 Q5e4 Kg7 Qe5 Rh4 Q5e4 Kh8 g7+ Kh7 g8R Bh1 R8g5 Bg7 Ng6 e1B Qdd3 Bg2 Q4f4 Bb4 Qdd2 Be4+
1Nq1Q1N1/1B4N1/q3Q3/1N1B2BN/Q1n2nnr/1QN2b2/Rq1k2r1/q3R2K w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 Ke7 Kg2 Kd6 b4 Ke5 d4+ Ke4 d6 a5 f6 c5 d7 h5 b6 e5 f7 a4 f8N a3 b7 c4 b5 c3 b6 c2 d5 a2 d6 h4 Nh3 Nf6 g8Q Ra6 g7 Ra3 g6 Nd5 Ba6 Ra4 Nf4 Nc6 b8Q Rc4 b7 Na5 N8e6 h3+ Kg1 Rh5 Nd4 Rh4 Nh5 h2+ Kg2 Rc7 Bg5 c1Q Rg1 Qe8 d8Q h1N d7 Nf2 Qa7 Rc4 b8N Bb7 Nb5 Ng4 Qb3 Ba8 Qdb6 Qc8 d8N Rc7 Rf1 Nf4+ Kg1 Re7 Qe8 Nc4 g8B Qc3 g7 Kd3 Qbc6 e4 Ne6 e3 Bf7 e2 g8N e1Q Neg7 Qe5 Re1 Qf6 Qcb6 Bg2 Bb7 Bf3 Qaa4 Re2 Bfd5 Rd2 Qbc6 Qfe6 Qcd7 Qa6 Qde6 Rdh2 Qbb4 Qc2 N1c3 Kd2 Qbb3 Qc1 Rb1 a1Q Rb2+ Qc2 Ra2 Qcb2 Rf1 Re2 Rb1 Nh2 Re1 Rg2+ Kh1 Ng4+
k4NQn/N2N2K1/q2NB1r1/N1n1r3/r3R3/5R1q/1N1BQ3/R1QqqQ1q w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 Ke2 Kd7 Kd3 Kc8 Kd4 Kb7 Ke5 c5 d4 h5 b4 a5 g5 h4 f7 c4 f8R h3 f6 c3 g6 g2 g7 e6 d6 a4 d5 c2 d7 a3 d6 h2 b6 a2 f5 Qc7 d8N+ Kc8 b7+ Kd7 b5 Ne7 g8Q Na6 b8Q Rh4 b6 Rg4 f7 Rb4 Kf6 e5 b7 e4 Kg7 e3 f6 e2 Nc3 e1R Na4 Qc5 Nc6 Ra7 Nh3 g1Q+ Ng5 Qg2 Bc4 Qf1 Nb2 Re3 Bd2 c1Q Na5 Qh3 Re1 h1Q Ne4 Qd5 Qe8+ Ke6 b8N Rc7 d7 Ra4 Nd6 Re5 Re4 Rc6 d8Q Nc5 Qc7 Rb6 Qf1 Qe1 Nbc6 Ra6 Na7 Rc6 Qeb8 Ng6 Qb5 Nh8 Bb3 Rb6 Qbe2 Qc4 Rc8 Kd5 f8N+ Qe6 f7 Qeh3 Nd7 Ra6 Rc1 a1Q Rf8 Qb1 Ba2 Qc2 Ra1 Qcd1 Rb8 Rc6 Rb3 Qa6 Qcc8 Rb6 Qc7 Nd3 Qc1 Nc5 Ndc4 Rbe6 Rf3 Rf6 f8N+ Rfe6 Ncb6+ Kd6 Bc4 Kc7 Nbc8 Rd6 Be6 Rc6 Ndb6 Kb8 Nbd7+ Ka8 Nd6 Rc8 Bc4 Rce8 Bb3 R8e6 Ba2 Rh6 Be6 Rg6+
1rB2Q2/3n4/K1B5/2Nb3q/QQ2B1q1/B3qNnQ/RR1QNk1p/Q1r3b1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kf7 Kd3 c5 Kc4 e5 f4 h5 g4 e4 d4 h4 d6 h3 g6+ Kf6 d5 e3 a6 h2 g5+ Kg7 b6 e2 Kb5 e1Q b7 c4 a7 c3 d7 c2 d6 Qe6 Nd2 Qee8 Bd3 Qee7 Ra2 Qc7 d8N Na6 b8Q Rh7 d7 Qa3 f6+ Kh8 f5 Bb7 f7 Kg7 f6+ Kh8 Ne6 Bg2 d8Q Bh6 f8Q Qe5+ Nc5 Qf5 f7 Rg7 Ndf3 Qg4 Qfe8 Nb4 f8Q Nc6 Ne2 Ne7 Be4 Qe3 Ka6 Nf5 Qa4 Ng3 Qbb4 Rb8 a8B Rc7 Ba3 c1Q Bac6 Qcd2 Qf1 Qd5 Qa1+ Bg7 Qdd6 Bd4 Rb1 Bh1 Qf5 Kg7 Rbb2 Nf6 Qd2 Nd7 Qe7+ Kg8 g7 Qf7 Qd6 Qfh5 Qh7+ Kf7 g6+ Ke8 Qf4 Ke7 Qh8 Rcc8 g8B Rc7 g7 Rcc8 Qc7 Kf6 Qb6 Bg2 Qbb4 Bh1 Nfg1 Kg5 Be6 Kh4 Nf3+ Kh3 g8Q Kg2 Qf8 Kf2 Be6d5 Rc7 Bb7 Bg2 Bc8 Bh1 Nb3 Rc1 Bc6 Qe8 Qh3 Qeh5 Bf5 Bb6 Nc5 Ba7 Nh4 Bd5 Nf3 Bb6 Be4 Qb3 Qh4 Kg2 Ne6 Bg1 Nc5 Qe3 Qh3+ Kf2
r3R2Q/1b1K3B/1knBBN1N/3BQ2N/1BB1Q2p/2Nn4/q3b3/1b1Rqq2 w - - 0 1 legal: proof: d4 b5 g4 e5 f4 c5 fxe5 a5 dxc5 f5 a4 g5 axb5 f4 h3 Bh6 h4 Ra6 Nf3 Rf6 Ng1 Rf5 gxf5 g4 Ra4 Ne7 Ra1 Bg5 hxg5 Ng8 Kf2 h5 b4 d5 c4 Kd7 e4 Kc7 f6 f3 Kg3 a4 Kf4 h4 f7 a3 f8Q f2 c6 a2 e6 g3 Kf5 g2 e5 d4 c5 d3 g6 d2 g7 Qd5 Nh3 g1Q Qe2 d1B Qe4 Bb7 e7 Ba8 e8N+ Kd8 b6 Rh6 b5 Qd6 b7 Qg2 c7+ Kd7 c8B+ Kd8 b6 Nf6 g8N Nh5 e6 Bf3 c6 Qd7 Bd2 Na6 b8B Qg1 b7 Rh7 Bb4 Nc7 Nh6 Nf6 Qh8 Qe7 Nc3 Ncd5 Rd1 a1Q Bc4 f1B Nf4 Qa2 B8d6 Qag2 b8Q Bb7 Nh5 Ng8 Nef6 Q1h2 Rg1 Bd3 Rge1 Nf4 Bd5 Ba8 Qb5 Rf7 Ba6 Bb7 c7+ Kc8 Qa5 Qf1 Bac4 Rf8 Re3 Qe8 e7 Bb1 Ree1 Nd3 Ke6 Qa2 Re3 Qd8 e8B Be2 Bg6 Ne7 Bh7 Nc6 Qc5 Rg8 Qcd4 Qf8 Qde5 Qe1 Qh1 Ba6 Qhe4 Kb7 c8B+ Kb6 Kd7 Bb7 Rg3 Qb2 Rg7 Qa2 Re7 Nf2 Re8 Nd3 Nfg4 Qff1 Ngf6 Na7 Kd8 Rf8 Bce6 Nc6+ Kd7 Rg8 Re7 Rb8 Re8 Ra8
3n2Q1/2rB3B/4bRRb/K1BQB1n1/1R1N2nN/8/1Nbp1Bn1/1kB3Rq w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 h4 f4 hxg5 f3 e4 Kf7 g6+ Ke8 g5 Ra6 g7 Rh6 g6 Rh5 Qd2 Rg5 Qd1 Rg3 fxg3 Nc6 g4 Nb8 g5 f2+ Kd2 Nh6 Bc4 f1N+ Ke1 Ne3 Bf1 Nef5 exf5 Ng8 Kd2 d5 Kc3 Kd7 b4 e5 b6 Kc6 b5+ Kb7 c6+ Ka8 b7+ Ka7 f6 Kb6 f7 Kc5 c7 h5 b6 h4 Nf3 e4 Nd4 h3 Bd3 e3 Nd2 a4 Rb1 h2 Rg1 h1B Nc4 a3 Nb2 Nc6 b8B e2 b7 e1N Ba7+ Kd6 b8B Nh6 g8Q Ke5 g7 a2 g6 Ne7 Kb4 a1N c4 Qd6+ c5 Rh7 Ka5 Nac2 c6 Be6 c8B Be4 c7 Ne3 Bd7 Neg4 c8R Ng2 Rc6 B4f5 Bc2 Bd3 Qd2 Ke4 Bc7 Qh2 Be5 Qh1 Bb6 Bf5 Rf6 Be6 Qg5 Nef5 Ba7 Nfh4 Bc5 Nf3 Ba7 Ba3 f8B Nf7 Bfc5 Nd8 Qh8 Qh6 g8N Qh1 Ne7 Rg7 Qgh5 Ng5 Nef5 Rf7 g7 Bb4+ Ka4 Bd2 g8R Re7 Rgg6 Rh7 Be8 Rc7 Bd7 Bf4 Qg8 Be3 Nc6 d4 Nh4 Bf4 Ka5 Be3 Ba4 Bc2 Bb3 d3 Nd4 d2 Bab6 Nf3 Bc4 Bh6 Bd3+ Ke3 Qf5 Ba2 Qfe6 Ng5 Qd5 Bc4 Rg7 Ba2 Bh7 Bab3 Rgg6 Bc4 Nd1+ Kd3 Rb4 Ba2 Nb2+ Kc3 Qd6 Be6 Qd5 Ba4 Nb5+ Kc2 Bf2 Bb3 Bbc5 Kb1 Nd4 Bc2
n3qQ2/1BBn2Bn/3B1B2/1N1QR3/K4rrp/1b3n2/Q1R1QN1k/1N4qB w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 b4 Ke7 d4 Kd6 Kd2 a5 Kc3 h5 Kb3 c5 b6 e5 b7 c4+ Ka4 e4 b5 h4 b6 c3 f6 e3 f7 e2 f8Q+ Ne7 g8B e1Q g7 c2 g6 Ra7 Bb2 c1N Ra2 Ra6 Qe2 Qg3 Bg2 Qc3 Nh3 Qe3 Re1 Be6 Nf2 Nd3 Bh1 Nd7 b8N Qe8 b7 N3e5 Nc6 Ng4 Na7 Ngf6 Bh7 Qg5 g8Q Qg1 g7 Rb6 Bc2 Nh7 Bce4 Rc6 Qgf7 Rg8 Ba1 Rc3 Rc2 Rf3 Qf5 Rf4 Beg2 Rh8 g8Q Rg4 Qff3 Rf4 Qgf7 Rg8 Qb3 Rgg4 Qa2 Bf5 Q7g8 Bd3 Bf3 Bc4 Qge6+ Kc7 Q6e4 Nc8 b8B+ Kd8 d6 Ncb6+ Ka3 a4 d5 Na8 Nb5 Kc8 Bg7 Kb7 Kb4 a3 Ka4 Kb6 Qef5 Kc5 Qh5 Ne5 Be4 Nf3 d7+ Qe7 Qb2 a2 d8B a1N Qa2 Nb3 d6+ Qe5 Bg5 Qe6 Bb7 Qe8 Ba6 Kc6 d7 Kd5 Bbe5 Ke6 d8B Kd5 Bd6 Nc5+ Ka5 Nd7 Ka4 Qg3 Bdf6 Qg1 Bfe5 Ke6 Bg5f6 Kd5 Bb7+ Ke6 Qhf7+ Kf5 Nd3 Rg3 Q7g8 Kg4 Qd5 Kh3 Nf2+ Kh2 Bc7 Rgg4 Bed6 Nfe5 Qed1 Nf3 Re5 Qf1 Qe1 Qg1 Qe2 Bb3+
3R3Q/1R5K/q1QN4/2brNrk1/Q1bQ2p1/1N4B1/QBB2qb1/N1b1Q2r w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Kd7 f7 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 g5 e6 h3 Na6 h4 Nf6 Rh2 Nc5 Rh1 Nce4 gxf6 g5 Ra3 g4 Ra1 Ng5 hxg5 Bc5 Rh6 Bd6 Rh1 Bf8 Ke2 c5 Kd3 h5 Ke4 a5 d4 c4 b4 e5 b6 c3 g6 c2 d6 h4 g7 h3 g8Q a4 d5 a3 b5 a2 b7 h2 b8B Rh4 b6 Bb7 Ne2 Ra3 Nd4 Rf3 Qe1 Rhh3 Bb2 c1Q Na3 Qc4 Rb1 a1R Bd3 Bh6 f8Q Bg7 f7 Qcc7 f6 Bc8 b7 Ra2 Nb3 Rh7 Bc2 Bh8 Qh6 Qb6 f8N+ Ke8 Ng6+ Kd7 f7 Rg3 Kf5 e4 f8Q Qe8 Ne5+ Kd8+ d7 e3 Qfb4 e2 Qa4 Ke7 Qhc6 Qf8+ Kg6 Rd3 d8N Qa6 Ndf7 Be6 Nd6 Qf2 Bc7 Rh5 b8Q Rf5 Kh7 Kf6 Qbb4 Rd1 Qd4 Ra1 Rg1 h1B Rg3 Bg2 Rd3 Bf1 Ndc4 Bg7 Nbd2 Qa5 Qh8 Qg2 Qg1 Rg5 Nf7+ Re5 Bb3 Qa7 Bc1 Qb7 Qef2+ Rf5 d6 e1B d7 Qc8 Nc2 Rf4 d8Q+ Kf5 Ba3 Rf3 Bg3 Bf8 Nce5 Qa6 Rb2 Rab1 Na1 Bc4 Qdb6 Rf4 Rd8 Bd6 Qbe3 Bc5 Nd6+ Kg5 Qee4 Rbc1 Qb1 Rf5 Qa2 Qf3 Bc2 Bg2 Rb7 Qe2 Ndb3 Rd5 Qd4 Bd2 Qh1 Qf2 Bb2 Re1 Qf1 Bc1 Qe2 Rg1 Qe1 Rh1+
k1r1q1RB/4Q2N/B7/3N3p/rK1N1R1Q/NB5n/3n1Qq1/rnB1rNN1 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 d4 Kd7 Kd2 Kc8 Kc3 Kb7 b4 c5 b6 a5 g5 h5 f7 e5 f8N g2 f6 e4 d6 e3 f5 c4 d7 e2 g6 e1R d5 a4 b5 a3 f7 a2 g7 Ra4 f6 Rh7 d6 Re8 Qe1 Ra8 Na3 Rh8 Qe7 Ra6 Nh7 Nc6 f8N Nb4 f7 Nh6 g8B Nc2 Nf6 Kb8 b7 Qb6 d8B Ne1 d7 Qf2 Nd5 Rg6 Nh7 Rf8 Ne3 Ka7 b8N Rg5 b6+ Ka8 Rh4 Nc2 Rf4 Qe2 Nc6 Re8 f8Q Ng4 Nb4 Nf2 Nbd5 Nh3 Rb1 a1R b7+ Ka7 b8N Ka8 Nc6 Rf5 Nb5 Na3 Kb4 c3 Ncd4 c2 Qh4 Rfe5 Bf6 Rg5 Rb3 Nb1 Na3 Rc8 d8Q Rf5 Ng4 Qe8 Ba6 Re5 Bf7 Re1 Nge3 Rg8 Be5 Rg5 Bh8 Rf5 Nf1 Rg5 Bd2 c1N Rg3 Nb3 Bc1 N3d2 Qde7 Rge5 Rg8 Rf5 Ngf3 g1Q Be6 Qg4 Ng1 Qg2 Qff6 Rfe5 Qf2 Rf5 Q6h4 Rg5 Nde3 Re5 Bb3 Ra5 Nd5 Ra4+
4NK1k/1N1bN1N1/4R3/1p1R1N2/2Bb4/1rQQ1Q2/b2BNp2/1qqnQ1bB w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 fxe5 a5 b4 f5 bxa5 g5 g3 f4 g4 Nc6 h3 Nce7 h4 Nf5 gxf5 g4 Bg2 Ra6 Bh3 Rg6 Bf1 Rg5 hxg5 Be7 Bh3 Bd6 Bf1 Bf8 Kf2 Kf7 a4 Kg7 e4 h5 d4 c5 a6 c4 a7 g3+ Kf3 c3 a8B g2 d6 h4 Kg4 h3 d7 c2 f6+ Kh7 Kh5 f3 f7 f2 e6 h2 e5 Be7 f8Q Bf6 d5 Nh6 d6 Qe7 d8N Bd7 a5 Qg7 e7 Bh3 e8N Qa7 a6 Qd4 e6 Qd2 d7 Bb2 a7 Qd3 e7 Qc4 Na3 Be5 Qf6 Bf5 g6+ Kg8 g7 Kh7 g8N Bb8 Bd2 c1Q Nc2 Bg3 Nd4 Bd3 Nb7 Qc5+ Nf5 Q1c3 d8Q Qb3 Ng7 Bf4 e8N Bc2 Ne7 Qb1 Ra6 Be5 Bc4 Ng4 Ne2 Bd4 Re6 Ne3 Qe1 Nd1 Rf1 g1B Kg5 Ba1 Qd3 h1B Qfc3 Bb3 Kf6 Ba2 Kf7 Bb2 Rf6 Bc6 Re6 Bh2 Rg1 Bd7 Rg4 Bg1 Rd4 Rg8 Rd5 Qc6 Nc7 Rc8 Nce8 Kh8 Kf8 Qc5 Nd8 Qa3 Bc6 Ba1 a8Q Qac1 Nb7 Rc7 Rdd6 Bb2 Bh1 Rc5 Qaa3 Rd5 Qf3 Rd3 Rd5 Re3 Qd4 Rb3 Qdd3 Ba1 Qb4 Be5 Qbc3 Bd4
n4RK1/1QRN3p/4R2Q/3RN2q/1QB3bB/Qpnn4/2pRrq2/R2Bk3 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 h4 b5 f5 Ra6 g5 Rf6 gxf6 g5 Bg2 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 Ke2 Kd6 Kd3 Kc5 Ke4 Kb4 Ke5 c5 f8Q e6 a4 g3 d4 g2 a6 Ne7 a7 c4 a8B c3 g6 c2 d6 Kb3 f7 b4 Kf6 e5 Kg7 e4 f6 e3 a5 e2 a6 e1Q a7 Bd7 d5 Bg4 d7 Qe2 d6 Nec6 Nd2+ Kc3 Nb3 Ne5 Bg5 Qa6 Qd2+ Kb2 Rh6 Qe7 d8R Qeb7 d7 Qe4 Nf3 g1N Bh4 Qd5 Nc5 b3 Qb4 Nec6 Ne5 Qc8 Bc4 Qd3 Qd6 Qc7 f8Q Qh3 f7 Nd4 Bf3 Qb6 a8Q Nde2 Qb7 Nf4 Bd1 Qf3 Rc8 Nd3 d8R Na6 Rc7 Qe2 Ncd7 Qbf2 Qfe7 Qef3 f8R Ne2 Qa3+ Kc3 Qde6 Kd2 Qeb4+ Nc3 Rf5 Qe1 Kf7 Qee2 g7 Qff1 g8R Qff2 Rgf8 Ke1 Qeb6 Rg8 Re6 Rg6 Qe3 Rg8 Qh6 Rh8 Rcc6 Nc7 Kg7 Na8 Rc7 Qg3 Rf2 Qef3 Rd2 Qgf2 Rf4 Re8 Rf8 Qf5 Kg8 Re7 Nb6 Qh5 Rd5 Rf7 Nbd7 Rf3 Nc5 Re3 Ncd7 Re2
1KR3BR/2rN2k1/2pR1qb1/1B2B3/NRR3qp/3p1r1N/NR1b3r/4QQ2 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 g4 a4 g3 axb5 Nf6 b6 Bg7 b7 Ng8 hxg3 Be5 g4 Bg7 g5 Bf8 d4 c6 d5 Nf6 b5 Na6 c5 Nc7 d6 Nfd5 dxc7 Nb6 cxb6 Bh6 Qe2 Bg7 Qd1 Bf8 Kd2 Kf7 Kc3 e5 Kc4 h5 b8R a5 f4 e4 g4 h4 f6 d6 g6+ Kg8 g7 e3 f5 a4 f7+ Kh7 g8R a3 b7 e2 g5 e1Q f6 a2 b6 Qe3 g6+ Kh6 g7 Ra5 Bb2 Rh7 Qe1 Qee7 Be5 Bg4 c8R Qec7 Rh8 Qde7 g8B Bd7 Nh3 Qcd8 Nc3 Bf5 Rd1 a1R Na4 Bg7 f8N Qee8 f7 Bb1 Nd7 Rb5 f8Q d5+ Kd4 Rb2 Kc5 d4 Kd6 Rh2 Bb5 Bd3 Qff1 Qg5 Kc7 Qf6 Rc1 Be4 Rc4 Rd2 Rh2 Rda2 Rb2 d3 Rd8 Qef8 Rbc8 Qb4 b8N Bg6 b7 Bf8 Na6 Kg7 b8R Be7 Rc1 Qg4 Rc4 Bb4 Kb7 Bd2 Nb4 Rc1 Ka7 Rc2 Rb7 Ra1 Na2 Rd1 Kb8 Rdc1 Qg3 Re1 Rb6 Re3 Qge1 Rg3 Ndc5 Rf3 Rd6 Bc1 Nd7 Rh2 Ba6 Bg5 R6b4 Bd2 Bb5 Rh5 Bf4 Re5 Bg3 Re7 Be5 Rf7 Ndc5 Ra7 Nd7 Rc7
K3rNQ1/1RR5/n3qR1b/RNrqqQ2/r1B1bQ2/1R1Q1RBn/k5bN/8 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 g4 c5 f4 e5 d6 h5 Kd5 a5 d7 c4 f6 e4 b6 h4 f7 e3 g6 c3 b7 e2 g5 e1R f5 a4 f6 a3 g7 a2 g6 c2 Nc3 Kb3 Bc4+ Kb4 Qd2 h3 Nf3 h2 Nb5+ Ka4 b4 Re2 Qf4 Rh7 Rf1 Qa5 d8Q h1B Qd7 Re8 Qdf5 Nh6 g8R Re6 g7 Bc5 f8N Re7 f7 Nc6 b8R Re3 Rb7 Re4 Nh2 Qa6 Rf3 Bg2 Bd2 c1Q Be1 Bb6 Bg3 Qd1 Rh8 Qh1 g8Q Ng4 Rc1 Rh4 Rh5 a1Q Kd6 Nb8 d5 Bc5+ Kc7 Re8 d6 Be3 d7 Nf2 d8Q Nh3 Qdd3 Qe6 Rc3 Ra5 Rb3 Qhg1 Ra7 Bd7 Kb7 Qgd1 Ka8 Bc8 Rg5 Na6 Rc7 Rg4 Nd6 Qg7 b5 Qge5 b6 Rc5 b7 Bc1 b8R Bb7+ Ka7 Be4 R8b7 Qh1 Nb5 Qd1 Nh7 Bd2 f8R Be3 Rf6 Qd2 Qc3 Qdd5 Qd3 Rh4 Nf8 Bc1 Q4g4 Bd2 Rh5 Bh6 Qgf4 Qa1 Qfh7 Bf5 Qfg5 Qdd7 Nd6 Rb5 Bd5 Rhb4 Qg4 Be4 Bc4 Qc3 Rhc5 Qce5 Qf4 Qc6 Qhf5 Qcd5 R5c6 Ra5 Rcb6 Rc5 Rb5 Qc3 Rb1 Ka3 Rb3+ Ka2 Ra5+ Ra4 Nb5 Re7 Ka8 Qce5 Rc6 Re8+ Rc8 Re7 Rc7 Re8+
Br1N1BN1/qQ2N2k/3BQ3/2BK1nR1/Nq2b3/7q/nB1R2QB/r1nbb3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 Kg7 Ke4 h5 g4 c5 f4 a5 d4 e5 b4 h4 f6+ Kg6 f7 h3 f5+ Kg7 f6+ Kh7 b6 c4 d6 a4 d7 c3 b7 a3 b5 h2 d5 c2 b6 a2 d6 Nc6 b8Q Qc7 d8N Ra4+ Kd5 e4 b7 e3 g6+ Kh6 d7 Ra8 g7 Ba3 f8B Kg6 g5 e2 f7 e1N Bc5 Rh5 f8B Na7 Qe2 Qf4 Nf3 Qb4 Bb2 c1Q Nc3 Qb6 Rg1 h1B Qg2 Qe3 Nh4+ Kh7 Na4 Nb5 Rd1 a1Q Nf5 Nd3 Ne7 Bb4 Rd2 Nh6 g8N Nc1 Bd3+ Nf5 Be4 Qa5 Qc7 Qa7 b8B Qaa3 Qb7 Qh3 Bh2 Rb8 Bhd6 Bc3 Bf3 Qb4 g6+ Kh8 g7+ Kh7 Qe2 Rh6 Rg5 Rf6 Bh2 Ra6 Qe6 Ra5 Ndc6 Bg2 d8B Bd7 Bdb6 Be8 Bbc7 Bh5 Be4 Bd1 B7d6 Ra6 Nd8 Ra5 Rc2 Be1 Rd2 Nc3+ Ke5 Bb3 Qc6 Ra8 Rg3 Bc4 Nf6+ Kh6 g8Q+ Ng7 Nb6 Ra1 Na4 Bb3 Qa6 Rb8 Ba8 N3a2 Qb7 Bh1 Rgg2 Bc2 Kd5 Bd1 Qg4 Qbb6 Q8e6 Qb4 Nfg8+ Kh7 Qge4+ Nf5 Rg5 Bg2 Qf3 Bf1 Qh1 Bd3 Qg2 Be4+
1NQ3r1/3R2K1/nN2B3/B1QBn1Br/1N1q3N/bNq2qN1/1kn5/2bRQ2b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 a3 f7 h3 g6 c4 g5 a2 f5 h2 b6 c3 d6 c2 g7 Kb3 b7 Rh7 f6 Rh3 g6 Ra6 Bg2 Rh6 Nd2+ Kb4 Nb3 Rc6 Bg5 c1B Bd5 Rh3 Ne2 Ra6 Qe1+ Bd2 Ng3 Ka4 Rd1 Qc7 d8N a1N Nc6 Be7 f8Q Rh8 f7 Nf6 g8Q Qa5 d7 Bc1 d8B Rh7 g7 Ra8 Nb4 Qc5 Ba5 Na6 b8N Bb7 Nd7 Rh5 Qc8 Qf2 f8N Nc2 Ng6 Qd2 Rg1 h1Q Qc5 Qf3 Nh4 Qdf2 Qd8 Bc6 Qc7 Rg8 Qc8 Qd2 Rg2 Qdd3 Rgd2 Qc4 Na1 Ba8 b3+ Ka3 Nb6 Kb2 Rd3 Rgh8 g8B Bc6 Bf7 Rg8 Na2 Qcg4 b4 Bf8 b5 Qa4 Qce3 Ba3 Nb3 Bb7 Qec5 Ng4+ Kd6 e5 Ke7 e4 Nb4 e3 Bfe6 e2 R3d2 Qe3 Kf7 Ne5+ Kf6 Re8 Kg7 Qf3 Nd7 Bc6 b6 Rd8 b7 Rf8 Qeg1 e1Q b8N Rd8 Rd3 Qc3 Qe1 Rdh8 Nb6 Rf8 Na2 Qad4 Nb4 Qfg4 Bc4 Bh1 Bcd5 Re8 Rf3 Rf8 Rf7 Qgf3 Rd7 Rg8+
Q1b2N2/qn4b1/1k1n4/Nq2Q2Q/2R2Bn1/Nr2bB1N/r1NR2N1/BqK2B2 w - - 0 1 illegal: No possible last move
1R2K1B1/bQrQ1b2/3NBrB1/1Q4n1/1Q2b1nb/6k1/nR2bR2/BNQ1Q1q1 w - - 0 1 illegal: No possible last move
BBr4R/Qr6/1rqn1K2/NBkNN3/2N1R2r/2b3R1/1BNb2b1/1Q1nr2N w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 Kg5 e5 f4 a3 g7 e4 b7 e3 b6 a2 f5 e2 Rh3 e1B Na3 h4 Bb2 c1R Nc4+ Kd7 d6 Kc6 d7 Ra3 d5+ Kc5 d6 Kb5 Ne2 Qe7 d8N Nh6 g8B Be6 d7 Kb4 Rg3 h3 Nc6+ Kb5 d8R h2 N6a5 Rc2 Qb1 Qh7 f7 h1R f6 Be7 f8N Rh3 Nd7 Rd3 Nde5 Ba3 f7 Beb4 f8N Qd7 Kf6 Bd2 g5 Nf7 g6 Rd6 g7 Bd5+ Ne6 Na6 b8Q Bg2 b7 Rb6 Qa7 Nc7 b8B Nd6 N6d4+ Kc5 Bd5 R8h7 g8N Qc6 Ne7 Bab4 Rh8 Ncb5 Be4 Rc3 Nc2 R3h4 Nd5 Rg7 Rg5 Rb7 Ng3 Qd7 Nh1 Qc6 N2a3 Rc1 Nc2 Nc3 Rg3 Nd1 N4e3 Bbc3 Bb5 Rg4 Nec4 Rh4 Rh7 Nf2 Ndb4 Rc7 Rh8 Bd4 Ne1 Qd7 Qd3 Qc8 Ba8 Rb7 Rb1 a1R Ne3 Rc4 Rd1 B4c3 Nbd5 Rc1 Qc2 Kd4 Qb1 Rc6 N1c2+ Kc5 Rf1 Re1 Nec4 Nd1 Rf4 Qe8 Rd4 Rc8 Re4 Qc6
BB6/N3b1BR/1Q3Rn1/Q2K1QbN/B1nrRbqB/k2b2q1/2B2b2/4r1R1 w - - 0 1 illegal: No possible last move
2bKbbRq/Q2qQ1rB/2k5/rq3QQQ/3n1B2/1nB3q1/B1N2QR1/N2R4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 a5 Ke5 h5 g4 e6 b4 h4 d4 c4 f4 a4 g6 a3 g5 a2 f6 c3 b6 h3 f5 h2 d6 c2 f7 Ra3 f6 Na6 b5 Qc7 g7 Bb7 d5 Nc5 g6 Ra8 Bf4 c1Q Na3 Ne4 Bc4 Rh4 Ne2 Rh7 Rg1 h1B Nc2 Ra4 Ned4 Bc8 b7 Ra7 b8B Qa3 b6 Qc3 b7 Qb6 Qh5 Nc5 Rg2 Na4 Rd1 a1Q Ba2 Ne7 g8B Qab2 g7 Q6b4 Na1 Rh8 Bh7 Qg3 g8R Qb1 Ndc2 Nc5 Bc7 Ra6 b8Q Qa4 Qa7 Nf5 Ba5+ Qb7 Bc3 Qb5 Bd2 Nb3 Bc3 Bg7 f8Q Ra5 Re2 Bh6 f7 Nfd4 Kf6 e5 Rg2 e4 Qg7 e3 Qgg5 e2 f8Q e1Q Qgh4 Qh3 Qf2 Qe8 Qff7+ Kd8 d7 Qg3 Qf5 Bf8 Q7h5 Qe5+ Kf7 Kc7 d6+ Kc6 Bcd2 Qf3 Bc3 Qf6+ Ke8 Qg3 d8Q Qh6 d7 Qf6 Bg6 Rh7 Qe7 Qh8 d8Q Rg7 Bh7 Qc7 Rh2 Bd5 Rg2 Bde6 Qeg5 Qd6 Qde7 Bed7+ Kd8 Qe6 Bg6 Be8 Bh7 Qd7+
nN2Q3/3qQ1B1/RQ1r4/1B2QR1Q/qK3bR1/3BrkNb/q1Q2B2/1bn4q w - - 0 1 illegal: No possible last move
1BBRR2q/q1R2bqr/1qK2n2/7B/1RQ1n2R/3Q1rR1/1BQ1NkNb/6b1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 c5 Ke4 e5 g4 h5 d4 a5 b4 a4 f4 c4 f6 Kg6 f5+ Kh7 f7 c3 f6 Kg6 b6 h4 d6 a3 Kd5 c2 b7 h3 d7 e4 b5 a2 b6 e3 Ne2 h2 Bb2 c1B Nf4+ Kh7 g6+ Kh6 g7 Kg5 Nc3 Kh4 g5 Kg3 g6 e2 Qc2 e1Q Ng2 Qd1 Be2 Be3 Rc1 a1Q Bh5 Qd2 Ne2+ Kf2 Rhg1 Qe7 d8R Nd7 b8B h1Q b7 Qh3 Kc6 Qeb4 d5 Qaa5 d6 Nh6 g8B Qe1 g7 Be7 f8R Ng4 f7 Qa7 Rfe8 Rh7 f8R+ Ndf6 d7 Bd6 Be6 Bh2 Rh8 Ne4 g8Q Ngf6 Beg4 Qed2 Qgc4 Qdd4 Bf7 Bc7 Qa6 Qb3 Nh4 Rg7 Qc5 Bg3 Bf4 Nh7 b8R Qa3 Kb5 Qc7 Bd6 Bb7 Rdc8 Ra7 d8Q Bh2 Rg3 Bd5 Ng2 Rg8 Qd7 Rf8 Rcd8 Be6 Rc3 Kf1 Qdc6 Bb3 Bc8 Beg1 Q5d5 Qe3 Qd3 Kf2 Rb6 Qe7 Bb8 Rd7 Bg6 Rf3 Qa4 Bd5 Qac2 Nhf6 Qe6 Qf8 Rc7 Qa7 Rh5 Qg4 Rh4 Rh7 Bh5 Qgg7 Qf7 Bc4+ Kc6 Qfh8 Rb4 Ba2 Qfb3 Qed4 Qbc3 Bf7 Qcc4 Qdb6+
1nr3NR/BBrB2Q1/2n3R1/Q2qBb2/2r1kB2/2R2b1Q/3B1Rq1/K1b1b2N w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 d4 h5 Kd2 c5 Kc2 a4 Kb2 c4 g6+ Kf6 g5+ Ke7 d6+ Kd7 f6 Ke6 d7 Kd5 f5 e4 f7 e3 b6 h4 f6 h3 b5 e2 g7 e1Q b7 h2 b6 Qa5 g6 Na6 b8B Nh6 g8B Qc5 g7 Qde7 d8Q+ Qed6 b7 Qa7 Bd2 Bg4 Ra3 c3+ Ka1 c2 Qa5+ Ke4 d5 c1B Qf3+ Ke5 Bh3 Rh7 Ne2 Bc8 Rc3 a3 Ng3 a2 Bd7 Qb6 Ba7 Qdc7 b8B Nb4 d6+ Qbc5 Qd3 Be7 f8Q Nd5 f7 Q7c6 Rf1 h1B Rf2 Bf3 Nh1 Nc7 Qf5+ Kd4 Qh3 Kd5 Bf4 Bd8 Nd2 Na6 Ne4 Bh4 Nf6+ Kd4 Qe7 Ng4 f8B Ne5 Bd5 Bg3 Bc7 Nb8 g8R Qb7 Rg4 Nec6 Rg6 Rf7 Ng8 Bh4 Rfc2 Be1 B8h6 Rh7 Rf2 Rf7 Bg4 Bf5 d7 Rg7 d8R Rf7 Be6+ Ke4 Bce5 Qd5 Bc8 Rh7 Qf6 Rc7 Bd7 Na6 Qh8 Rac8 Qg7 Nab8 Bhg5 Qbb5 Bd2 Qf1 Bgf4 Qg2 Rf8 Rd8 Bc8 Re8 Ba6 Rec8 Bb7 Bd1 Rc5 Rd7 Nh6 Bf3 Rh8 Rdc7 Ng8 Be6 Rc2 Bf7 Bd7 Be6 Bdc3 Bf5 Bb4 Be3 Kb2 a1R Rc5 Ra4 Bbc3 Rc4 Ka1 Bc1 Bcd2 Rb4 Rc3 Rc4
1r1B2k1/Bb6/Q1Q1N3/1BBBN3/4R3/N4rbn/1KNBqqqq/Rb2n2Q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 c5 g4 h5 d4 e5 Kd2 a5 Kc2 h4 g6+ Kg7 b6 a4 f6+ Kh6 b7 h3 g7 Kh7 f7 c4 b5 e4 g5 c3 b6 h2 f5 a3 d6 a2 d7 e3 g6+ Kh6 d5 Qe8 d8Q Qe7 f6 Qc5 d6 Nc6 b8N Ra6 b7 Qg5 d7 e2 Qb6 e1Q d8B Bd6 f8B Nge7 f7 Qf2+ Ne2 Ra3 Nd7 Nd5 b8B Ne5 Qa6 Nf3 Ne5 Bb7 Ba7 Nf4 Bd2 Qgg2 Nd4 Ne1+ Kc1 c2 Bb5 Bc7 Kb2 Rf3 Na3 Bb8 Rg1 h1B Bfc5 Re8 g8B Kg7 f8N Nh3 Bgc4 Be4 Nfe6+ Kg8 g7 Bc7 Bde7 Rb8 Bd5 Bd3 Bd8 c1Q+ Kb3 Qc4+ Kb2 Bb1 Ndc2 Qh2 Rg4 Qce2 Re4 Bg2 Nec4 Bg3 Ne5 Bh1 Qc6 Qef1 Qe2 Q1g2 Qc4 Qe2 Qa4 Qgf2 Qaa6 Rf6 Qcb6 Nf3 Kc3 Nd4 Bh6 Bf4 Bdc4 Qfg3+ Re3 Qf1 Nb4 Bb7 Qc6 Nc2 Bd5 Qff2 Kb3 Qgg1 Re4 Kh7 Bg5 Ne1 Kc3 Bg3 Bge3 Bf4 g8Q+ Kh6 Qg2 Kh7 Qf3 Kg8 Qh1 Bg3 Kb3 Qgg2 Bg5 Bd3 Rd1 a1Q Bd2 Rf7 Rc1 Rf3 Rd1 Qc1 Ka2 Qc4+ Kb2 Bc2 Ra1 Bb1 Nbc2 Qce2
kqqB2B1/b1B2K2/rR1r3R/Q4b1n/3B1bq1/5NNB/1B4N1/NnQQq3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 Kb7 g4 h5 b4 a5 d4 h4 f4 h3 g6 e6 g7 h2 f6 a4 d6 c4 d5 c3 f7 c2 d7 a3 g5 a2 f5 Qe8 d8Q Rh7 g6 Rh8 b6 Ne7 Kf6 e5 g8B e4 g7 e3 d6 e2 b5 e1Q d7 Ra4 Bh3 Rh7 Na3 Qd2 Rb1 a1B+ Bb2 c1Q Nc2 Qe2 Nf3 Ka8 b7+ Ka7 Qa5+ Na6 d8B Rhh4 b8B+ Kb7 b6 Rh8 B8e5 Nc7 Bed4 Kb8 b7 Ned5+ Kg6 Q8b5 f6 Bc5 f8N Nc3 f7 Ba7 Ne6 Ne8 f8Q Nf6 Nf4 Bf5+ Kf7 Rh6 Ng2 Nh5 Qc5 Rd6 Qc4 Qe1 Qf1 Qg5 Qg1 Qg4 Qe3 Qa6 Qh6 Bc5 Qhc1 Ka7 b8B+ Ka8 Bbc7 Ba7 Ba3 Qeg3 Rb6 Nb1 Bab2 Q3f4 Bh7 Qb7 g8N Qc8 Nh6 Qfg3 Bg8 Qe5 Re1 h1Q Re4 Qef4 Re6 Qe1 Rg6 Qfe4 Rf6 Qeb7 Rg6 Qbb8 Rf6 Be4 Nf5 Bd3 Ng3 Bf5 Rh6 Ra2 Ba3 Bc3 Bb2 Bd2 Na1 Bf4 Qac5 Ra6 Qa3 Qe4 Qa5 Qe1
R1Q5/4Q3/RbN3rq/1b2n1n1/RNNK1NqR/1B3k1b/2BRbB2/2R1nr2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 b4 c5 g4 f5 d4 h5 g6 c4 e6+ Kd6 g7 a4 g5 h4 b6 h3 b5 a3 g6 c3 e7 c2 e8Q h2 b7 a2 b6 Ra7 Qe1 Rh5 Nd2 Rg5 Nh3 Nd7 b8N Ndf6 b7 Be7 Nf4 Nh7 Nc6 Ra5 b8R Ra6 Nc4+ Kc7 Rbb1 Ngf6 g8R Ne4 g7 Bf8 Nb4 Kb7 d6 Nhf6 d7 Rg6 d5 Ng4+ Kd4 Qh4 d8R Ng5 e4 Ne5 d6 Qg4 d7 Raf6 Be3 c1Q Bf2 Be7 Bd3 Bc5+ Kd5 Qe3 Rc1 Bb6 Bc2 Qeh3 Qc3 Qh6 Qe7 Rf8 Rh8 Kc7 Rhd1 h1B g8B Bf3 Rd2 Be2 Re8 Ba6 Ra8 Bb5 Ra4 Rff6 Bf7 Kb7 Rha8 Kc7 R8a6 Kb7 Rab1 a1N Rh1 Kc7 Rh4 Kb7 Rc1 Kc7 Nh5 f4 Bg8 f3 Nf4 Nb3 Be6 Nc5 Bf7 Ncd3 d8N+ Bd7 Ndc6 Ne1 Qe3 Rf5 Q3c5 Kb7 Kd4 Rff6 Be3 f2 Be6 f1B Bf2 Bh3 Bd5 Nef7 e5 Rf5 e6 Ne5 Qd6 Rff6 e7 Rf8 e8R Rf5 Ne7+ Bc6 Bg8 Bb5 Rea8 Rff6 Nec6 Rf7 Qd5 Kc7 Qe4 Kd7 Nfd3 Ke6 Nf4+ Kf6 Bb3 Rf8 Bh7 Rf7 Qe3 Kf5 Nb8 Ne4 Nfd5 Nd7 Bg3 Ng5+ Kc3 Bef1 Qee7 Ne5 Qc8+ Ke4 N8c6 Rf2 Nf4 Kf3 Rd8 Rd6 Bhc2 Rg6 Rd2 Ba5 Kd4 Be2 Rb8 Bc7 Rba8 Rf1 Bf2 Bb6+
QNBNn2R/RBqN2k1/1br4N/1Nrq4/4b2q/N1K5/bBQ3B1/nR5q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 c5 g4 h5 d4 a5 Kd2 e5 b6 h4 b5 h3 b7 a4 f6 h2 g6+ Ke8 b6 e4 d6 e3+ Kc3 c4 g5 e2 d5 a3 f7+ Kd7 f5 a2 g7 Rh6 f6 Ra5 g6 Qe8 Qc2 Qe6 Nf3 Qe5+ Nd4 Ra7 Na3 Nc6 b8Q Qh5 b7 Nb4 Ndb5 Ra5 Qa8 Be7 f8R Bd8 f7 Bb6 Rb1 a1Q+ Bb2 Nf6 g8B Ne8 b8N+ Kd8 d7 Ke7 d8N Kf6 d6 Kg7 d7 Ba6 Bg2 Qd5 Rhd1 h1B Bh7 e1Q+ Rd2 Qa2 Rh8 Qa1 f8N Qee4 Nf7 Qh4 Qc1 Nc2 d8N Nb4 Nfd7 Nc2 Bh3 Be4 Bg2 Nd4 Qc2 Nb3 Nbd6 Rc5 Ndb5 Qa2 Rf2 Na1 Rf6 Qdh5 Rc6 Qd1 Rc7 Qdh1 Ra7 Qb3+ Kd4 c3 Bg8 Rhh5 Nh6 Rhe5 Bc4 Re6 Bd5 Rf6 Bb7 Rfc6 Qe2 c2 Qc4 c1Q Qc2 Qcf4 Bc8 Qc7 Bb7 Nd6 Bc8 Nc4 Bb7 Qa2 Kc3 Nd6+ Nc4 Qc1 Nd4 Rh5 Nc5 Qch1 Na3 Kf6 g7 Ne8 g8B Kg7 Be6 Bf1 Bd7 Qf7 Bg4 Bc4 Bgc8 Rd5 Ncd7 Rdc5 Ndb5 Qfh5 Bf3 Qd5 Bg2 Ba2+
4QQQR/1kr2Bn1/1n2n3/R2r1b2/Nq1rNK1p/B6N/3N1b1N/Nb2B1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 b4 c5 g4 Kc7 d4 f5 e6 h5 b6+ Kb7 b5 a4 d6 a3 g6 a2 d7 c4 g5 c3 e7 c2 e8N Bg7 d5 Nf6 d6 Ng8 Nd2 Ra7 Nh3 Bh6 g7 Ka8 Nf6 Qe8+ Kf4 Rh7 d8B Qc6 e4 Qc4 d7 Ne7 g8N Rg7 Ba3 c1R Qf3 Rf7 Ng4 Bb7 N8f6 Bc8 Nh2 Rc7 b7+ Ka7 b6+ Ka6 Be2 Bg7 g6 Qb5 e5 R1c4+ Nfe4 Rc1 e6 Re1 Bc4 Bd4 g7 Bf2 g8Q Rd1 Bd5 Qb4 Bb3 Nbc6 b8B Ne5 b7 Nc4 Ba7 Nb6 b8N+ Kb7 Nc6 Rg7 Nd4 Rg5 Nc2 h4 Rg1 Rh5 Rg6 Rg5 Rh6 Rh5 Rh8 Rg5 Rb1 a1N Bc4 Nb3 Ra1 Nc5 Bb3 Nc6 e7 Nd4 e8Q Rh5 Bf7 Nce6+ Ke5 Ng7 Kf4 Rg5 Ra2 Rh5 Na1 Rg5 Bc1 Rh5 Ra5 Rg5 Ba3 Nde6+ Ke5 Rg4 Be7 f4 d8N+ Ka8 Nb7 Rg5+ Kf6 Rd5 Nbc5 Rd4 Na4 Kb7 Ke5 Bd7 Qh5 f3 Qhh7 Bc8 Qgf8 Bd7 Qhg8 Bc8 Ndb3 R1d3 Nbd2 Rd5+ Kf6 R3d4 Bd6 Bd7 Bg3 Be1 Rh6 f2 Qh8 f1B Qd6 Nf8 Rh7 Rdc4 Rh5 Bd3 Qg8 Nc8 Rh8 Bf5 Kg5 Bb1 Bg1 Rcd4 Kf4 Nb6 B3f2 Nh7 Bg3 Ng5 Qdf8 N5e6+ Ke3 Bf2+ Kf3 Be3 Be1 Bh7 Kg4 Bf2 Kf3 Bg6 Kg4 Bf5+ Kf3 Ng5+ Kf4 N5e6+
1N6/2R1Q1Bb/1NB1K3/4qrN1/4qrN1/1BBRq1QB/1Q2r1pb/n3nk1B w - - 0 1 illegal: No possible last move
1Q1R1B2/N5Qn/3qB2b/Br2RrR1/b1qn4/1r5R/pN1NKRR1/1Nk4b w - - 0 1 illegal: No possible last move
k1BBbQ2/6R1/N2Bq1B1/1q2B1n1/1Q3b1r/1prNQN2/b1q2Q2/2KnRB2 w - - 0 1 illegal: No possible last move
rq2Qb1B/nBn5/3QbBBR/1r1N1bKB/R4Rp1/2Q5/5Nk1/Bq1Q1n2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 f5 Kh4 c5 b4 a5 d4 f4 e4 c4 b6 c3 b5 a4 h6 c2 h7 a3 e6 Kd6+ e7 g6 e5+ Kd7 e6+ Kd6 b7 f3 b6 a2 Nc3 f2 Bg2 f1B Bb2 c1Q Nh3 Qc7 e8B Qd7 e7 Bg7 Nf2 Nc6 b8R Ra3 b7 Qc2 Kg5 Qb1 h4 Qe6 h5 Qe1 h6 Kc7 d6+ Kb6 d5 Kc5 d7 Ra8 d8B Bf8 d6 Bc4 d7 Be6 Nd5 Qb4 Bf7 Kd6 e8B Na7 Bdf6 Ne7 d8Q+ Bcd7 Bbc3 Bf5 Qc8 Bde6 Rh2 Rg8 h8Q Rg7 h7 Qb6 Nb4+ Nd5 Rh6 Rg8 Bcd4 Nc7 Nd5 Q6b2 Qg7 Qb5 h8B Qb6 Kh4 g5+ Kh5 g4 Kg5 Q6b3 Bh5 Qg3 Bc3 Qe5 Beg6 Kc5 Bd2 Kd4 Qe7 Rg7 Qd6 Rh7 Qe8 Rd7 Qa3 Rd6 Rd8 Rb6 b8Q Rb7 Rd7 Rb5 Rf7 Qc1 Nb4 Qb1 Bc3+ Ke3 Bb7 Qd6 Qbc8 Qd8 Qcd7 Qb8 Q1d6 Ke2 Nd5 Kf1 Bce5 Kg2 Qc3 Ra5 Qa4 Rb5 Qd1 Qe4 Rb1 a1N Rb4 Nc2 Ra4 Qe1 Qa5 Qg1 Ba1 Ne3 Qc3 Nf1 Be5 Bd3 Rff4 Bdf5 Bef6 Ng3 Qdc2 Qb1 Qd1 Nf1
Q5rQ/1B1q2b1/N1r4K/1NR1B3/3N1pNn/2N1q2R/bkq1nBNb/2R4B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 f5 h4 a5 d4 c4 b4 c3 e4 g6 d6 Ke6 h6 c2 b6 a4 b5 a3 d7 a2 h7 Ra4 h5 Qc7 Kg5 f4 d8R Qc3 b7 Qd2 b6 Ne7 d5+ Kf7 d6 Ke6 d7 Qe1 h6 Nec6 Nc3 Nd4 Rh3 Bd6 Qf3 Ndc6 Nb5 Qd1 Be3 c1Q Bg2 Bc5 Ne2 Ra5 Nec3 Bb4 Bh1 Qb3 Bf2 Qcd1 Rc1 Re8 h8N a1B h7 Ne7 Kh6 g5 Ng6 g4 h8Q g3 Nh4 Ra6 Ng2 Nbc6 b8N Rg8 b7 Ng6 Rf8 Rb6 Na6 Bc5 b8B Qbc2 Rf5 Nh4 Bc7 Nd4 d8N+ Kd7+ Nc6 Ke6 Bb8 Ne2 Bc7 Qd7 Ncd4+ Ke7+ e6 Rc6 e5 Bb6 Ne3 g2 Rg5 g1Q Ng2 Qe1 Qe4 Qed2 Qf3 Qe3 Bd6+ Ke8 e7 Kf7 e8N Bb2 Nf6 Bb7 Nb3 Ke6 Ng4 Bc8 Ne4 Kd5 e6+ Kc4 e7 Bf6 e8B Ba7 Nec3 Bc5 N3d4 Bb7 Ne6 Kb3 Ned4+ Kb2 Bf7 Bb6 Rc5 Ba7 Be5 Bc8 Bd5 Bb6 Nb4 Ba6 Na7 Bc4 Na6 Ba2 Nab5 Qed2 Be1 Rcc8 Rc7 Qe8 Nf5 Bg1 Rc5 Bh2 Bf2 Qd7 Nfd4 Qe3 Ba8 Rc7 Qb7 Rc6 Qb8 Qce4 Bb7 Qc2 Qa8 Bg7+
3Q1Qq1/3Q4/1N3rb1/1B1NR1N1/Knp1Q1Q1/nn4qQ/kBB2R2/b2rBb2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kf7 Kd2 e5 Kc2 h5 Kb3 c5 g4 a5 f4 h4 g6+ Ke7 g5 Kd6 b6 e4 g7 e3 g6 e2 b7 e1Q f6 h3 f5 h2 f7 Be7 f8B Rh5 f6 Qc7 f7 Qe4 Qe2 Rh3+ Ka4 Na6 b8Q Re3 b4 Ra7 b5 Rg3 b6 Qg2 b7 Qf3 Nc3 Nb4 Nh3 Qf6 Ng5 Rd3 Bb2 Rf3 Ra2 Ra8 Qe4 Nc2 Bb5 c4 Re1 Bf5 Qc8 h1B b8N Na3 Nd7 Bg2 Nb6 Qe6 Re3 Nf6 g8Q Rf4 g7 Bg6 Qh7 Qg4 g8B Bf1 Qh3 Qd8 Qcf5 Qg3 Bh7 Ra6 Bh6 Qg8 f8Q Rf2 Qeg4 Rd2 Re5 Rd3 Qfe4 Rd1 Qe8 Bf8 Qec8 Bg7 Qe8 Kc7 Qf8 Kb7 d6+ Nd5 d7 Bf6 Qef4 Nb4 d8Q Bg7 d5 Bh8 Na8 Rf6 d6 Ka7 d7 Bg7 Nc7 Kb6 Qde8 Bh8 d8Q Bg7 Qed7 Bh8 Re7 Kc5 N7d5 Bg7 Nge4+ Kd4 Ng5+ Kd3 Nb6+ Kc2 Ncd5 Kb1 Re5 Bh8 Bd4 Bg7 Rf2 Bh8 Bb2 Ka2 Ba6 Be8 Re3 Nac2 Kb5 a4 Ba1 a3 Nf3 Rd6 Ka4 Kb1 Bb5 a2 Bhg7 Bh5 Bac3 a1N Be1 Ka2 Ng5 Nb3 Bgc3 Bd4 Re5 Rf6 Bd3 Bg6 Qe4 Be2 Ba1 Na3 Bc2 Bf1 Bac3 Be3 Bd4 Bc1 Bdc3 Bb2 Bd4 Ba1 Bdc3 Qf7 Bb2 Qg8
B2Rr1Q1/bQ1Nbn1Q/2NQ3Q/5p1n/Nq1q1BbN/R4K2/1Q1B2r1/1r5k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 b4 g5 e4 c5 d4 a5 h4 f5 e6+ Kd6 e5+ Ke7 b6 a4 b7 g4 b5 g3+ Kf3 c4 b6 g2 d6+ Ke8 d5 a3 h6 c3 d7+ Ke7 h7 c2 h5 a2 h6 Ra6 Qe2 Nc6 b8Q Bg7 b7 Bf6 d6+ Kf8 e7+ Kf7 e8N Ke6 Nc3 Bg5 Bd2 c1Q Nf6 Qe7 d8Q Ra5 d7 Ra7 Na4 Qe1 Qdc7 Qh4 Qd6+ Kf7 d8N+ Kg6 e6 Qd4 Rd1 a1R Rh3 Rb1 Nd7 Nf6 Qee5 Re8 h8Q Bh4 h7 Kh5 Qe2 Qf8 e7 Ra5 Qa8 Ra7 b8B Ba6 Qb5 Rb7 Qbe5 R7b2 Qb7 Rc2 Bc4 Bb5 Bd5 Bf1 Rg3 Bg5 Qg7 Kh4 h8Q+ Nh5 Qgh6 Bf6 Q8h7 Rcb2 Ne2 g1B Nf4 Bh3 Qe2 Ra2 Qeb5 Rc2 Qb2 Bg5 Ba5 Rg2 Bd2 Qf7 Be4 Qfc4 Bc7 Qb4 Bb8 Rf8 e8Q Be7 Qef7 Re8 Qfg8 Na5 Bc7 Nc4 Nc6 Bf2 Ke2 Ne5 Ra3 Nf7 Ng6+ Kg4 Bd5 Ne5 Bf3+ Kg3 Nh4+ Kh2 Bb8 Qf4 Bd5 Nf7 Bc7 Qe5+ Kf3 Bg1 Bb6 Kh1 Bbe3 Qh8 Bf4 Qhd4 Bc3 Rc2 Nf6 Rcc1 Qb5 Qb6 Qc7 Rf8 Nd4 Nd8 Ba8 Re8 Nc6 Nf7 Rd8 Rc2 Nd7 Rg2 Bcd2 Q6c5 Qcb8 Qcc3+ Qd3 Ba7 Qb7 Qh8 Qd5 Qhd4 Qdd6 Bg4+
1q1B4/1N1n2K1/np2R2B/2Qr1Q2/1B1B1b1R/2NRn2Q/Bkbr1R1q/b3B3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 c5 h4 g5 a4 e6 d4 c4 d6 c3 a6 g4 a7 g3 f6 c2 f5 Kb3 d5 b6 h6 g2 h5 Bg7 d7 Qe7 d8B Qf8 d6 Qe7 h7 Qf8 h6 Bb7 a5 Na6 d7 Bc6 Ra3+ Kb4 Ne2 g1N Ng3 Bf3 Qd3 Rc8 a8Q Bh5 Qad5 Bg6 Ne4 Nh3 Nc5 Nb8 a6 Ng5 a7 Qe8 a8R Bh5 Nb7 Qe7 Nc3 Na6 Rh4+ Ne4 Qh3 Bg6 Ra2 Rc5 Bc4 Qe8 Bf4 c1Q Rf2 Ka3 Ba2 Qb2 Bg3 Bf8 f7 Nd2 f6 Nf1 Qf5 Bg7 f8B Ne3 Rc8 Qc2 Rc6 Kb2 Bfe7 Ra5 Bb4 Qf8 Qc5 Rb5 Bc7 Qb8 d8R Qd2 Rd3 Qe2 Kf4 e5+ Kg5 e4 f7 Nf6 f8B Nd7 Re6 Be5 Bg7 Rd8 h8B Qc2 h7 Bd4 Rf3 Qh2 Kh6 Be5 Bf8 Bf4+ Kg7 Ra5 Be1 Rb5 Qd6 Rd5 Qe7 Ng4 Qc5 e3 Rf2+ e2 Kg8 Ne3 Bd4 Qh1 h8Q Qh2 Bd2 e1B Kg7 Bh5 Qhh7 Bd1 Qh3 Bc2 Q7f5 Rc8 Bd8 Rc7 Kh7 Rc6 Bh6 Rcd6 Rg2 Beg3 Rf2 Be5 Be1 Bgf4 Re7 Rg6 Re6 Rg2 Rf3 Re2 Rf2 Rd2 Ne4+ Kc1 Bdc3 Bd6 Bcf6 Bfe5 Kg7 Ba1 Nc3 Bf4 Bd4 Kb2
4R1r1/B3nkp1/bK1B3Q/1NNqqB2/4B3/3nN3/Nn1R1b1R/1BB2bQr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 a5 Ke3 c5 b4 f5 h4 a4 d4 c4 e6 c3 e7 c2 d6 a3 b6 a2 d5 f4+ Kd4 f3 Kc5 f2 e4 Nf6 h6 Nh7 b5 Ra5 d7+ Kf7 h5 Kg8 d6 Ra7 e8B Ba6 b7 Nf6 b6 Nd5 e5 Bb5 e6 Nf4 e7 Ra3 Nh3 Ng2 Nf4 Ba6 Nd5 Ra4 Nbc3 Nf4 Bh3 f1B Bg6 Bfc4 e8B Rb4 Ne3 Bd5 Rh2 Bb3 Nb5 Bd5 Be4 Qe7 d8N Qc7+ Nc6 Bf7 Qg1 Rb1 Bhf5 Qe7 Nb4 Bd5 Beg6 Nc6 b8B Qg5 b7 Ne2 Kb6 Nc3 d7 Bc4 d8N Qh4 Ba7 Nd1 b8B Bd6 Nb7 Nb2 Nc5 Bg3 Bd6 Ne7 h7+ Kf8 h6 Qg5 Rd2 Rg8 h8R Bf1 Bh7 Kf7 Rh2 Ra8 Re8 Qh5 Rd2 Qd1 Rh2 Qd5 Rd2 Bf2 Bhg6+ Kf6 h7 Rd8 h8Q Rc8 Qh6 Rd8 Bh7+ Kf7 Re2 Rc8 Bd2 Re1 Rd1 a1Q Na2 c1N Bb1 Ncd3 Bc1 Bh4 Rh2 Bf2 Rh8 Rg8 Rd2 Nd1 Be4 Qae5 Bhf5 N1b2 Qg4 Bg2 Qd1 Rh1 Qg1 Rc8 Rg8 Bf1 Re8 Ng6 Re6 Rg8 Re8 Ne7
KQbR3q/b2Nn2k/r7/R2R4/p1B2rbB/1NRb1n2/2B1B3/RbQRN3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 h5 Kf3 a5 Ke4 f5+ Kd5 Kf7 e4 Kg6 g4 a4 b4 d6 c4 h4 b6 h3 b7 h2 b5 f4 c6 f3 c5 f2 c7 Rh6 e6 Rh3 b6 Rh6 e7 Ra5 e8B+ Kg7 e5 Qe7 e6 Rb5 g6 Qf6 e7 Qb2 g5 Nc6 b8Q Bb7 c8R Kh8 g7+ Kh7 Nf3 Rh5 Ne1 Qc2 Rd8 Qc3 Nd2 Rh4 g6+ Kh6 Be2 f1B Nb3+ Qe3 Bd7 Ba6 e8R Rhb4 b7 Re4 Re5 Rb6 Bf5 Reb4 Bc2 Nd4 c6 Nf3 c7 Rf4 c8R Qc3 Rg5 Qf6 Rc3 Bd3 Be3 Ra6 Qc1 Bh3 Bf2 Bc8 Bh4 Be7 Rhg1 h1B Rd7 Bd8 Re5 Bb6 Kc6 Bg2 Ra5 Ba7+ Kc7 Ne7 g8B d5 g7 d4 Bc4 Bh1 g8R Qh8 Rgd8 Kh7 Rdd5 Bg2 Qa8 Bgh3 b8N Bhf5 Nd7 Bfe4 Qb8 Bg6 Bcd1 Bb1 Rf1 d3 Bc2 d2 Rg1 d1B Rf1 Bd3 Rh1 Bb7 Rf1 Bc6 Rg1 Bb5 Kb7 Bf5 Ka8 Bd3 Ndc5 Bd7 Rf1 Bc8 Nd7 Ng5 Rg1 Nf3 Bf1 Rd6 Ng2 Ng5 Rh1 Bh5 Be2 Ra6 Rd1 Nf3 Ne1 Bg4
1Bn3bQ/4N2r/q1Q1RR1N/B1p2rR1/2n3B1/2rN2BK/5b1B/bk2BR1r w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 h4 Kd4 b4 e5 f6 g5 b6 a5 f7 c5 h6 a4 h5 a3 b7 a2 f5 e4 h7 e3 b5 g4 d6 e2 f6 Kd3 h6 Ra3 b6 Bd7 Rh5 Nc6 b8B Qe7 b7 Be8 d7 Rc3 d8R+ Nd4 Nf3 Bc6 Ne5+ Ke4+ Nd3 e1R Qa4 Qd7 Be2 Ne7 Re8 Rc4 Rg5 Nb5 Nc3+ Kd4 Nd5 Ng6 Re6 Rd1 Ne7 Bg7 f8B Qc8 f7 Rg8 h8N Bh1 h7 Na7 Qc6 Rc3 Be5+ Kc4 b8B Kb3 Kh2 Kc2 Bg3 Re1 Ba3 Rg1 Bb4 Bd4 Rf1 a1B Bg7 Bg2 f8R Qa6 Nf7 Rh8 B7e5 Nc8 Nh6 Bf2 Rff6 Bd5 Bf3 Rf8 h8Q Rh1+ Kg2 Rh5 Bh2 Bb3 Beg3 Ne5 Bd1+ Kb1 Ba5 Bd4 Be1 g3 Bg4 Bf2 Bac7 Nf3 Be5 Rf7 Bed6 Rh7 Bdc7 Nh4+ Kh3 g2 Bcg3 g1R Nb2 Bd1 d4 Bb3 d5 Rh1 d6 Bc4 d7 Nf5+ Kg2 Nfd6 d8B Ba2 Nd3 Nc4 Ba5 Bb3 Rg7 Re5 Kh3 Rf5 Rg5 Ne3 Rd6 Bg8 Rde6 Nc4
2krnB2/1bp5/1bq2BB1/3Rr2B/n3N2B/Kn1Q1NQ1/B1NN4/r1R3Qr w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 g4 a5 b4 h5 d4 e5 Kd2 a4 Kc3 h4 Kb2 e4 d6 e3 d5 e2 b6 e1R f6 h3 g6 h2 b7 Na6 b8Q Bh6 b5 Nc5 f5 Ne4 f7 Ngf6 f8B Qe7 b6 Re3 g7 Ra7 g8B Nc5 g5 Re4 g6 Ba6 b7 Re1 g7 Nb3 Bh7 Nc5 g8B Re3 Nf3 Qe8 Bg6 Nh5 f6 Re1 f7 Re2+ Ka3 Ne6 Bg5 Nhf4 Bh4 Bg7 Nbd2 Rh5 Rc1 Ree5 Be2 Reg5 Qg1 Rg2 Bfe7 Bd4 f8B Be3 Bef6 Rh6 Qa8 Ng7 b8N+ Kc8 Nc6+ Kd7 B8f7 Nd3 Nb4 Nb2 Nc2 Rh5 Bc4 Rgg5 Ba2 Rh8 Qb7 Bd4 Qb3 Kc8 Qc3 Bb6 d7+ Kb7 d8Q Re5 d6 Qc6 d7 Ne8 Qd3 Rg8 Qg3 Ra8 Rhd1 h1R Qe7 Ra7 d8N+ Kc8 Qed6 Bb7 Ne6 Raa5 Qc5 Ra6 Kb4 a3 Neg5 Na4 Nge4 Ra7 Qcg1 Ra8 Bb1 a2 Ka3 a1N Bba2 Nb3 Bh5 Rg7 Bfg6 Rd7 Rb1 Rd8 Rdc1 Na5 Rb5 Nb3 Rd5 Rg5 Bb1 Nb2+ Kb4 Ra1 Ba2 Re5 Ka3 Na4
4q1K1/2B5/Br1bb3/1B1Bqn1k/QbRrN2N/4Rn1N/p1Bb4/1N1B1Q1Q w - - 0 1 illegal: No possible last move
1R4qK/6nN/R1qR2RN/NB6/2BR3b/p3BbQ1/1nkrRBr1/Q1b2b2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 h3 b6 c4 f5 c3 b7 c2 g6 Kb3 f7 h2 f6 Qb6 d8R Rh5+ g5 Qa7 g7 Qa6 d6 Qe2+ Be3 Ra6 d7 Qd2 Na3 Be7 f8B Ra7 f7 Na6 b8Q+ Qb4 Nh3 Rh7 g6 Bh4 Rg1 h1B Ng5 Nh6 Kf6 e5 g8N e4 g7 Bg3 Bb5 Rc7 Bfc5 Ra7 f8R Qd2 Nc4 Qg2 Rfe8 Bh4 Qg3 Nf5 Nh6 Nb4 g8B Nd3 Kg6 Rf7 Nh7 Ba6 Ra2 Ra8 Qa1 c1B Na5+ Kc2 b4+ Nb2 Bb6 Rf8 Bgc4 Ng7 Bf2 Rf4 Bbe3 Rg4+ Kf7 Rb8 Kg8 a3 Kh8 Rb6 Re6 Rd6 Ra8 Rd5 d8R Rd2 Rd4 Qf3 Rd1 Qf6 Rc6 Bf3 Rb6 Qg5 Rg6 Qc5 Rdd6 Qc6 Ra7 Re2 R1d4 Rd2 Qe5 Rg2 Qg3 Be2 Ra8 Bb7 Ra6 Bf1 Be2 Ba8 Bbc4 Bb7 b5 Ba8 b6 Bb7 Bg5 e3 Bb5 Ba8 Bec4 e2 b7 e1Q b8R Qe6 Bf4 Qb6 Bg5 Bf3 Bge3 Qc6 Nf8 Rd1 Nf5 Kc3 Qb1 Nd3 Re2 Nb2 Nh7 Rd2 Qa1 Kc2 Nh6 Qg8+
1B1n1Rbn/b2bQR2/NKNr1NN1/1N3bB1/k4Bp1/4Qq1r/1q2R2N/1B6 w - - 0 1 illegal: No possible last move
2R5/k2NpQr1/3bNnrQ/N3Q1RR/7B/R1N5/1RRqB1n1/K1nb1nq1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 f4 a5 d4 g5 Kd2 c5 Kc2 Kc7 Kb2 Kb7 h4 a4 d6 g4 h6 c4 h7 g3 d5 g2 d7 Bg7+ f6 Kb6 d6 Kb7 f5 Ra6 b6 Qc7 d8R Qc5 d7 Qd6 h5 Qe6 b5 Qe5+ Qd4 Qh2 h6 Nc6 f7 Qc7 f8Q Qe5 f6 Kb8 b7 Qe3 f7 Ra7 Rh5 Qe2+ Nd2 Ne5 Ra3 c3+ Ka1 c2 Nb3 Qe1 Be2 Ra5 Rg5 Nf3 Qe5+ Ka7 b8N Nf6 b6+ Ka8 b7+ Ka7 Qe8 Rc5 f8Q Rc6 Na5 Re6 Qef7 Rg8 h8R Nh2 h7 Qd2 Re8 Ra6 d8N Bg4 Ne6 Nf1 Rc8 Bh5 Bb2 c1N Rc2 Bh6 Nd7 Rg7 b8R Rb6 Ba6 Bd1 Ne2 g1Q Nc3 Rc6 Rg8 Rd6 Rh5 Bf4 h8R Rc6 Be2 Bh2 Qd5 Bd6 Qe5 Rb6 Rg5 Rc6 Rhh5 Ra6 Rab3 a3 R8b4 a2 Ra3 Nd3 Bc1 Ne1 Rbb2 Ng2 Rgh8 Qd3 Bf4 Qd2 Bg3 Rc6 Qg6 Ra6 Qff7 Rc6 Rc8 Ra6 Rb5 Rc6 Qh6 Rb6 Kb2 a1N Bh4 Nb3 Kb1 Nc1 Rbb2 Rb4 Ka1 Rg4 Rf5 R4g6 Rfg5 Qd5 Rh8 Qdd4 Rc8 Qd2
2k3q1/nN2Q1RB/6n1/2pR4/nKB2bbB/p2RrRN1/Bb1NQ3/B2B3r w - - 0 1 illegal: No possible last move, all moves rejected
3N2Bk/N1Q1BnN1/1qb4r/RpNp4/3B4/1R1KnN2/N1R3Qb/B1r3rn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 c4 e5 h4 b5 a4 g5 f4 Kg7 a6 e4 a7 e3 h6+ Kh7 f6 d6 a5 g4 h5 g3 c6 g2 a6 Bb7 c5 Qd7 f7 Be7 f8B Bf6 f5 Qf7 c7 Bd4 c8R Ne7 f6 Rg8 c6 Qa2+ Kd3 e2 c7 e1R f7 Bd5 Qc2 Be5 Bb2 Bb3 Nc3 Bf4 Rh3 Nf5 Nf3 g1N Be7 Kh8 f8N Rg3 h7 Ne2 Nd7+ Kg7 h8N Qa4 h6+ Kh7 Nc5 Nfd4 Nf7 Qa2 Nd8 Qb1 Na2 Ne6 Bd4 Nc6 Bg2 Rb8 a8N Na5 a7 Rc1 Bf1 Ng5 Bg2 Kg6 h7 Rb6 h8B Bd5 Bhf6 Rg4 Rg3 Kh7 Bh3 Rh4 Be6 Rhh1 Bfe5 Nc4 Bg8+ Kg6 Rh3 Ng3 Bg7 Qb4 Qg2 Rc6 Nb6 Rhf1 a8N Nf7 Rh1 Bh6 Ne4 Ne3 Bde5 Qb3+ Nac3 Rc4 Ra5 Qb4 Na2 Rb1 Ba1 Rc6 Bgd4 Qc5 Rg1 Rfe1 Rf1 Bg5 Rf2 Bh4 Rb2 Rg1 Rb3 Rbf1 Nf6 Kg7 Nbd7 Bg5 Nab6 Kh8 Ne8+ Bf6 Ng7 Nh1 Rb8 Be5 Nc8 Rc1 Na7 Bg3 c8Q Qb6 Rb7 Bh2 Rc7 Be6 Qb8 d5 Rc8 Rd6 Rc2 Bg4 Qb7 Rh6 Nc5 Bd7 Qc7 Bc6
4Q1r1/q2BBB2/1p3n2/r2N3b/2K1p2k/QRB1Q1rB/R6b/RBbnN1Q1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 h5 a4 e5 f4 c5 g4 b6 a6 e4+ Kc4 h4 d4 h3 g6+ Kf6 d6 h2 g5+ Kg7 a7 Bd7 a5 Qc8 a6 Rh6 f6+ Kh8 f5 Qc7 g7+ Kh7 d5 Ne7 g8B+ Kh8 f7 Kg7 g6 Kf6 g7 Rh5 Nf3 Rh8 Bh3 Rh7 Ne1 Ba4 d7 Qc6 d8Q Rh8 d6 Qe8 d7 Rh4 Nc3 Rh8 Nd5+ Ke5 f6 Nec6 Bd2 Bd6 f8Q Qf7 Qde8+ Ne7 d8Q Nd7 Qf3 Bc7 Qe3 Bd1 Bb4 Bg4 Bc3+ Kf5 Ra3 Bf4 Rb3 Kg5 Rg1 h1R Qc7 Rb8 a8B Rh5 a7 Kh4 Bc6 Bh2 a8R Nf5 Ra2 Rc8 Rf1 Rg1 Qb7 Qe7 f7 Nf6 Bd7 Rg3 Qa7 Rg5 Qa3 Bh5 Qac1 Ra8 Qg1 Ra5 Qce3 Qe6 Qd6 Qe7 f8B Rg6 Bf7 R6g4 Bde6 Qa7 g8B Rg6 Be7 R6g5 Bh7 Rg8 Bhg6 Nh6 Bc8 Ng4 Bd7 Nf2 Bgf5 Nd1 Bfg4 Rh8 Be2 Rhg8 Bd3 Ra4+ Kb5 c4 Qa3 Ra5+ Kb4 Qa8 Bb1 Qa7 Bb2 c3 Kc4 c2 Bc3 c1B Rff2 R3g5 Ra1 R5g6 Rfa2 Rg3
qB1R1QN1/1N1Qpb1k/1R2N2n/8/1NN3QN/5n1r/rb2KpQb/1n1R1B2 w - - 0 1 illegal: No proof kernel
B2RrbBN/8/1R4qk/qB2R1Rr/nQ2b3/n1NB1QB1/p1p1K3/1B2Q2b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 h5 e4 c5 d4 f5 g4 Kf7 b6 Kg6 d6 a5 d5 c4 b7 c3 b5 c2 e6 f4 d7 f3 d6 h4 b6 a4 e5 h3 e7 f2+ Ke2 h2 e8B+ Kg7 e6 a3 e7 Nh6 g6 Ra6 g5 Rh7 Qe1 Ra7 Bf4 Nc6 b8R Rb7 Nf3 Ne5 Bg3 Nf5 Nc3 Ng4 Ne5 Rc7 b7 Nf6 Rg1 h1B Nf7 Be4 Nh8 Kg8 g7 Rh5 Rg2 Kh7 g8B+ Kg7 g6 Bc6 Ba2 Ng4 Bb1 Kh6 g7 Be4 g8B Nf6 Bg6 Bd5 e8B Ne3 Bd3 Nc4 Beg6 Rc6 Bge4 Qa5 d8Q Bf5 d7 Re6 Qe7 Bg6 d8R Nd7 Qf6 Nc5 Qf3 Re8 Ra2 Bh7 Rb2 a2 Rb6+ Bc6 Ra8 Bg6 b8Q Na3 Qd6 Na4 Qb4 Bd5 Rac8 Ba8 Rc5 Bb7 Re5 Ba8 Bc6 Be4 Bh2 Bb7 Rgg5 Ba8 Bg2 Bb7 Bg3 f1Q+ Kd2 Qh1 Ke2 Qh3 Bcb5+ Qe6 Bh3 Qd6 Bc8 Bbd5 Bb7 Qg6 Ba8 Bb7 Qg4 Bh1 Qf3 Be4
1RnN3R/1b1q1nB1/2BN4/3R3r/1Q1RKpqQ/NrNQbN1N/1p2n1k1/8 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kf3 c5 h4 f5 e4 b5 a4 g5 d4 c4 h6 c3 h7 f4 d6+ Ke6 a6 b4 a5 b3 h5 c2 d5+ Kf7 a7 Be7 h6 Kg6 e6 Qe8 a6 Bf6 e5 Kf5 e7 Bd7 e6 Qf7 e8Q Be7 Bg2 Bc8 d7 Bd6 d8R Nc6 e7 Bc7 d6 Bb7 d7 Qg7 Na3 Qf7 Bb2 c1Q Qf8 Rc8 e8N Be5 a8R Bc7 a7 Bb8 Bg7 b2 Qb4 Be5 Rb8 Bc7 a8N Qe7 Nb6 Na7+ Nd5 Bb6 Rh5 Rc7 Nh3 Be3 Qdd4 Qc2 Rd1 Rc3 Qdc4 Qf7 Rd4 Rb3 Qf1 Qc8 Qd3+ Ke6 Rh4 Qf5 Rh5 Qc6 Nd6 Nc8 Ne4 Qg6 Ndc3 Kf5 Re8 Qcd6 d8N Qd7 Rf8+ Nf6 Rg8 Ne8 Bh1 Ned6 Re8 Rf8 h8N Qge6 Nhf7 Rh8 Ne5 Nf7 h7 Qg6 Nec4 Qge6 Nd2 Qg6 Ke2 Kg4 Nd6 Kg3 Bc6 Kh2 Re5 Qge6 Kf3 g4+ Ke4 g3 Rh6 Qg4 Red5 Kh1 Nf3 g2 Rc4 g1N Rcd4 Ne2 Rh4 Ne5 Rh5 Kg2 Rh4 Rf8 h8Q Rf5 Qh6 Rg5 Qf6 Rf5 Rh8 Nf7 Qh4 Rh5
n5QB/qRB3qr/2p5/B4NB1/B3kb1Q/R1bnr2K/RpB5/Q1RN1b2 w - - 0 1 illegal: No possible last move
7B/KNRqB3/1Bp1p1RQ/3B1qNb/kBQ2Nq1/3R4/5nrN/2B1br1n w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 g5 Kc4 a5 Kc5 a4 h4 e6+ d6 c6 f4 a3 b4 g4 d4 a2 f6 g3 b6 g2 f7 Qe7 h6 Ra5+ b5 Qd8 h7 Qe8 d5 Bg7 f8Q Qg6 h5 Qh6 f5 Ra8 b7 Ne7 Kb6 Na6 b8R Qf4 h6 Rg8 h8B Bb7 f6 Nc5 f7 Qc4 h7 Qa4 Nc3 Qf4 Nce2 Qb4 Rh6 Nb3 Qd3 Ra3 Qc4 Ra8 Rc8 Nd2 Rg6 Bf6 Nf3 Rg7 Nf4 Qb1 Nh2 Rg8 Qh6 Ne4 f8B Nf2 Rc7+ Kd8 d7 g1Q Bg2 Nf5 Bb4 Bh4 Be4 Rb8 Ka7 Ba6 b6 Qg4 b7 Ng3 Bd4 Rc8 b8B Ngh1 h8B Qc2 Rb1 a1Q Bb6 Qd4 Rb3 Qdd1 Bg2 Qcf5 Rd3 Rf8 Be1 Ke7 d8N+ Kd6 Be4 Bf6 Bea5 Bc3 Bg2 Rf6 Bf3 Be1 Bb4+ Ke5 Nb7 Rg8 d6 Rg7 d7 Qd2 d8N Rf8 Ra3 Qd7 Qb3 Be2 Bg2 Bf3 Nf7+ Ke4 Ng5+ Ke5 B6a5 Kd4 Be7 Be2 Bab4 Bd1 Qa4 Kc4 Rd3 Rgg8 Qb3+ Kb5 Qc4+ Ka4 Bd5 Qh3 Rc8 Bh5 Bc7 Qhg4 Bb6 Qg3 Rc7 Qf6 Ne2 Ne4 Nh3 Qfg5 Rg7 Rf1 Nef4 Qf5 Rg5 Nef2 Rg4 Rf8 Rg7 Rf6 Rg8 Rg6 Rg7 Rg4 Ng5 Qh4 Rg8 Rg2 Rg6 Qhg4
2RNBB1R/3BN2b/pq3N2/1p2r1B1/Rb1n1Q1B/2nr2B1/1Q2nR2/1n2k1K1 w - - 0 1 illegal: No proof kernel
b3Q1RK/1B6/r1Q1B1r1/1r1B2N1/B1ppq1nb/BRR5/Nn1Np2R/3k1B2 w - - 0 1 illegal: No proof kernel
Br3nBR/NR1BpN1Q/rr6/1B3Q2/1p2b2R/k3Np2/q3RnB1/B3K1b1 w - - 0 1 illegal: No proof kernel
3N1N2/n3b2p/2Br3Q/1pnRR3/2kq1NpQ/qb1R1KBR/3B1R2/5RNr w - - 0 1 illegal: No possible last move, all moves rejected
BN6/1pq4p/R3n3/2kr1RnQ/BrbR1BNp/q2QR1Q1/5Q2/K2R2bR w - - 0 1 illegal: Other
r5RN/BN1R2q1/2n5/QKq3Bb/1nRR3R/2R2Nbb/1kqRBn1R/7r w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 g4 a5 d4 e5 b4 h5 g6 c5 d6 a4 d5 a3 g7 h4 f6 h3 d7 a2 f7 h2 g5 Ra4 g6 Qe8 d8R Rh4 b6 Bf5 b7 Rh8 d6 Be7 f8R Bg5 d7 Nh6 Rf7 Qf8 Na3 Rg8 Qd2 Ra5 b5 Bf6 b6 Qd6 Nf3 Nc6 b8R Qf8 b7 Bh4 Rbc8 Nd4 b8B Ra8 Qa5 Rh8 Nb5 Ng4 Ba7 Bg3 g8N Rh6 g7 Nf2 Ne7 Rh8 Rb1 a1Q g8R Qb2 Ra1 Qg7 Ra4 Bg6 f5 Rh4 Rg1 h1B f6 Bg2 Bg5 Qa3 Rc7 Bh5 Ng6 Rh1 Nh8 Bh3 Rg2 Qe3 Rh2 Qe2+ Kc3 c4 Kb4 Kd3 Nd6 Kc2 Nb7 e4 Rdc8 e3 d8R c3 Rd6 Qh7 Rfd7 Qg7 Ra2+ Kc1 f7 c2 f8R Qd3 Rf4 e2 Rc5 e1N Rh4+ Qd2+ Ka4 Ned3 Be2 Nb4 R5c7 Qe3 Rc3 Kb1 R8c6 c1Q R6c4 Ndc6 Rad2 Qc2+ Kb5 Kb2 R6d5 Qee7 R5d4 Qc5+
2rBR2Q/NRq3r1/1Bn5/3B2Rp/rB5b/4Rb1b/NB1q4/2KRnkBR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Kd7 Kd2 h5 b4 f5 e4 a5 g4 c5 g6 c4 g7 a4 d6 Ke6 b6 a3 g5 a2 b7 f4 d5+ Kd7 g6 f3 e6+ Ke8 b5 f2 e5 Qc7 b6 Bd7 e7 Ra3 Bg2 f1B Nf3 Rc3 Nd4 Rf3 Nc6 Bc8 Nc3 Kd7 e8R Rg3 Na7 Nf6 g8R Ng4 g7 Nh2 Bb2 Qd8 Kc1 Qh4 Qd4 Nc6 b8B Nd8 b7 Nf3 Bc7 Rg5 b8B Qf2 Ba5 Bb7 Bb4 Nc6 Rb1 a1R Na2 c3 Bc7 c2 Bb6 Ne1 Re6 Be7 Rb8 Qf8 g8R Rg3 Rg5 Qh6 Qc3 Rf8 Bg1 Rc8 Be4 Ba8 Bf3 Bh3 Rb7+ Ke8 d7+ Kf7 d8B Qh7 Rg8 Rg7 d6 Qd3 d7 Bh4 Re7+ Kg6 e6 Kf5 Bd5 Kg4 Bdb6 Kg3 Qd4 Qe2 d8B Qe5 Ree8 Qb8 e7 Qc7 Bb3 Kg2 Bd5+ Kf1 Qc3 Rh7 Qh8 Rf7 Rg5 Rg7 Nc3 Ra4 Na2 Bd7 Rg8 Bh3 e8R Qd7 Re3 Qc7 Kd2 Bg2 Rd1 Bh3 Kc3 c1Q+ Kb3 Qc5 Rge8 Q5d6 Kc3 Qf4 Kd2 Qh2+ Kc1 Qd2+ Kb1 Ra6 Bb3 Ne7 Rb8 Bd5 Rb7 Bf3 Bf7 Nc6 Bd5 Qf2 Kc1 Ra4 B6a5 Qg2 Bb6 Qd2+
2bQRq1b/N2R1R2/1Rr2N2/n3B2R/k1r3B1/q4K2/1RR3Bb/nRR3qr w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 b4 a5 f4 c5 d4 e5 g4 h5 b6 c4 g6 e4 g7 h4 b5 a4 b7 h3 d6 e3 b6 Kc6 g5 Kb5 g6 h2 f6 a3 d5 a2 f5 c3 f7 c2 f6 Be6 d7 Ne7 g8R Ra7 g7 Rh7 d6 Rh6 Nc3+ Ka5 Nf3 Rh3 Bg2 Qc7 d8R Rh6 d7 Ng6 Rb1 a1Q Ne5 Na6 b8R Rh3 b7 Qa4 Nd5 Qe4 Re8 Qb4 d8R Bd6 f8R Bc8 f7 Ne7 Rd7 Nc5 Bb2 c1R Nf6 Rc4 Rh8 Qd8 g8B Nc6 Rh5 Nb3 Qd5+ Qc5 Rhc1 h1Q Bd4 Rh2 Kf3 e2 Bh7 e1B Bf5 Bh4 Bg4 Ka4 Ba1 Nca5 Nc6 Qcg1 Be5 Ra6 Na7 Rac6 Rfh8 Be1 f8R Na1 Rff7 Bc3 R8h6 Qe7 Ra8 Qf8 b8R Qc5 R8b2 Qa3 Rab8 Rh4 Rbc2 Qg1 R8b2 Bc7 Rde7 Rh1 Qd8 Bb6 Rb7 Bf2 Rfd7 Bg3 Rhh7 Bh2 Rhf7 Bd4+ R7b3 Be3 Rb6 Bh6+ R2b3 Bg7 Rbb2 Bh8 Rbb1 Qad6 R3b2 Qa3+
4n2q/1r1Nr3/2B1R3/NN1NRQbb/1N2np1B/N2N2Rn/4q1Nk/2NK3r w - - 0 1 illegal: No possible last move
1n1Q1rbn/N5B1/B1K3Q1/QQR2R2/7b/n2Qn1qk/NR1bNR1N/2n5 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 f4 h4 f3 hxg5 Na6 g6 Rb8 g7 Rb6 g5 Rf6 g6 Rf5 Rh5 Rg5 Rh1 Rg3 fxg3 Nb8 g4 f2+ Ke2 Qd7 g5 Qd6 Bg2 f1N Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Ke2 Kd7 Ke3 e5 Ke4 h5 d4 c5 b4 a4 d6 c4 Kd5 e4 b6 h4 b5 h3 b7 h2 b6 e3 f6 e2 f7 e1N Qd3 c3 Ne2 c2 Ra2 a3 Nbc3 Rh6 Rb2 Rh4 Na2 Na6 b8Q Be7 f8R Rh3 b7 Rh6 Rf2 Ke8 Kc6 Be6 d5 Nc5 Rg1 Bf6 d7+ Ke7 Rg4 h1N Rc4 Bf7 d6+ Ke6 Bf4 c1N Be5 Qe7 d8Q Ng3 d7 Nc2 Qa5 Nf5 d8Q Nd7 Rc5 Rh8 Bc3 Ngh6 g8Q Nfe3 g7 Qf8 g6 Bh4 Qh7 Qe7 g8N Qg5 g7 Qg3 Nf6 Rf8 Ng4 Bg8 Nh2 Nf7 Bf6 Nh8 Qhg6 Ng4 Qba8 Nge3 b8N Rf7 Q8a6 Rf8 Nb4 a2 Q6b5 a1B Na2 Bf7 g8R Na3 Rg7 Bg8 Rh7 Qh3 Rhh5 Qg3 Rbc2 Bd4 Rhf5 Bc3 Rb2 Bb4 Kb7 Bd2 Nc6 Nd5 Na7 Ne3 Qg4 Kf7 Qge4 Kg6 Kc6 Kh6 Bg5+ Kh5 Bf6+ Bg5 Qee8+ Kh4 Bg7 Bf6 Qg6 Be7 Bg2 Bf6 Bd5 Kh3 Bc4 Bh4 Qba4 Bb4 Ba6 Bd2 Q4b5 Nb8+
QRNn2Bb/NRr2BRB/R4b2/q3nQ2/3b3B/k4NB1/nn1nN3/3K4 w - - 0 1 legal: proof: c4 a5 g4 f5 f4 g5 a4 b5 axb5 e5 fxe5 d5 cxd5 f4 h3 Bf5 gxf5 g4 Nf3 g3 Ng1 Ra6 Qa4 Rg6 Qd1 Rg4 hxg4 Kd7 Nc3 Ke7 Nb1 Ke8 d4 Kd7 b4 h5 e4 c5 f6 h4 g5 a4 e6+ Kd6 g6 g2 e7 h3 e8N+ Kd7 d6 a3 g7 a2 d5 c4 b6 h2 e5 c3 f7 c2 b7 f3 b5 Rh7 b6 Rh4 Nc3 Nc6 b8R Rb4 b7 Nh6 g8B Na7 Nce2 Qa5 Qd3 Be7 f8Q Bf6 Bf4 c1N Kd1 f2 Nf3 g1B Bg3 Nc8 e6+ Kd8 d7 Nf7 Nd6+ Kc7 d8N Kb6 e7 Kc5 e8B Ne7 Qf5 Rc4 Nc8 Kb4 d6 Ka3 d7 Ne5 Bef7 Rc7 Nc6 Bh8 Bg2 f1N d8B Bd4 Rg1 h1N N6a7 Nd2 Qe8 N7c6 Bdh4 Nd8 Bh3 Qb5 Bg4 Qb6 Bgh5 Bf6 Bhg6 Qa5 B6h7 Bh8 Rb1 a1B Ra8 Bf6 b8R Na2 R1b7 Bh8 Bf2 Bab2 Rg7 Bbc3 Bfg3 Nf2+ Ke1 Nfd3+ Kd1 Bb2 Qc6 Ng4 Rb6 Bf6 Nb5+ Kb4 Raa6 Bbd4 Qa8 Nge5 Nba7+ Ka3 R6b7 Nb2+
2rb1N2/4Qb2/R2b3B/1r1n1KB1/2kbqRNB/2q2B1B/1QQ4Q/N1N2r2 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 b4+ Kd4 b6 c5 b7 h5 b8Q a5 f6 a4 b5 e6 f7 h4 d6 h3 b6 c4 d7 h2 b7 c3 Ne2+ Kc5 d4+ Kb4 d5 a3 d6 a2 Bh3 e5+ Kf5 e4 Qc2 e3 Na3 Qb6 Rf1 h1Q Rf4+ Qd4 Qa7 Rh4 b8Q+ Bb7 d8B Qf3 d7 Bc5 f8N Nf6 g8N Rh8 g7 Nd5 g6 Nc7 Nh6 Bd6 g8B Nd5 Ng4 Rh5+ Bg5 Qg3 Qc7 Rc8 d8B Ba6 g7 Bc4 Bd2 Bb3 Nc1 e2 Qb2 e1R Nc2+ Kb5 Qe7 Kc4 Qb8 Rf1 Be6 Qe1 g8Q Qh4 Qg6 Qe1 Nb4 c2 Bd7 Qe3 Bc6 Qc3 Bb7 Nb6 Bf3 Nd5 Ncd3 c1B Nc2 Ba4 Be3 Be8 Qgh7 Bd2 Nc1 Bf7 Qg6 Rh8 Bh6 Rc5 Bf2 Rb5 Bh4 Be3 Qe4 Bg1 Bdg5 Rg8 Qe7 Bf2 Nh7 Rc8 Nf8 Bg3 Rb1 Bc7 Na1 Bd8 Qh2 Ra5 Rb6 Rb5 Nc2 a1B Ra6 Rbc5 Qb2 Rb5 Re4 Bd6 Rf4 Rb6 Qb1 Bb2 Na1 Rb5 Qg7 Bba3 Qbc2 Bac5 Be4 Qe3 Bf3+ Bd4 Qge5 Qe1 Qee2+ Kb4 Qed2 Kc4 Qb2 Qee3 Qdc2 Qe4+
2nB1qQ1/3q2N1/rN1N3R/2k3Nn/2n5/bB1R4/Br1Qq1K1/BnR2NR1 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Kf2 Kd7 b4 Kd6 d4 c5 b7 a5 b5 h5 b6 e5 f6 h4 g7 h3 f7 h2 g6 c4 g5 e4 Bb2 e3+ Kg2 a4 Qd2 c3 Nh3 c2 Bc4 c1Q Ba2 Nh6 g8Q a3 g7 e2 g6 e1Q Ng5 Nd7 b8N Qcc7 b7 Nc5 Nd7 Na6 b8R Qh4 Nb6 Be7 f8N Qe1 Nfe6 Qf8 Rd8+ Qd7 Rg1 h1N Bb3 Nf2 Rh1 Nf5 Rh6 a2 Qc1 Rc8 Kf3 Rc2 Qh7 Nh3 g8N Nb8 Rc8 Nc6 g7 Qfd8 Nd2 Na5 Kg2 Qc6 Nf6 Bf8 Nfe4+ Ke7 Rb1 a1N d6+ Ke8 d5 Ne7 Ba2 N1b3 Ba1 Rb2 g8B Qa4 Qc2 Qe3 Rg1 Qe2+ Kg3 Qd4 Nf1 Nd2 Rc3 Nb1 Qd2 Qc8 Rc1 Nf4 Ng7+ Kd8 d7 Nh5+ Kh3 Qcc5 Bf7 Kc7 d6+ Kc6 Bfb3 Nc4 d8R Kb5 d7 Qcd6 Qg8 Rh7 N7e6 Nc8 Nd5 Rf7 Ng7 Rf5 Nb6 Kc6 Re8 Ra5 d8B Ra6 Re5 Qf6 Rd5 Ba3 Rd6+ Kb5 Rd7 Qd5 Rd6 Qb7 Rd3 Qf8 Nd6+ Kc6 Nh7 Kc5 Ng5 Qg4+ Kh2 Qbd7 Kh1 Qge6 Kg2 Qe2+
4B3/1r1B2B1/NNrr1N2/1BR5/1Q2N2k/KRn4b/NbqR1b1R/2Q2bq1 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 b4 c5 d4 h5 Kd2 e5 Kc3 Ke7 Kb3 a5 f6+ Kd7 d6 Ke6 d5+ Kf5 b6 h4 b5 c4+ Ka3 c3 b7 h3 b8Q e4 f7 e3 b6 h2 b7 e2 Nd2 Kg4 Ne4 a4 Rb1 c2 Rb3 Nf6 g8N Qd7 g7 Rh3 g6 Qd8 Bb2 Bf5 Qc1 e1R Bb5 Qc8 Ne2 Be7 f8N Bd7 N2c3 Qd8 Na2 Bf5 Nd7 Kh4 Nb6 Qc8 Be5 Bd8 d7 Rc3 d6 Nd5 Ngf6 Ra7 g8B Bh3 g7 Rc6 Be6 Nc3 g8B Rd1 Bgf7 Bc7 d8R Rd3 d7 Rdd6 Re1 h1B Be8 B1g2 Re2 Bf1 Rg2 Rc5 Rh2 Rcc6 Na8 Ba5 Nb6 Qc7 Rc8 Bb4+ Kb2 Bc5 d8R Bf2 Ka3 Qg7 B6d7 Qg1 Qa1 c1Q+ Qb2 Qc2 Qc1 Rd1 Qd6 Rd2 b8N Rb7 Na6 Rd5 Ng8 Rd3 Bg7 Rd4 Ngf6 Rd1 Kb4 a3 Qe7 Rdd6 Qf8 Re6 Rc7 Rcd6 Rc5 Rc6 Qe7 Red6 Rf5 Qb1 Bc8 Re6 Rd2 Nd1 Bcd7 Qc2 Nac3 a2 Ka3 a1B Qb4 Red6 Na2 Nc3 Rc5 Bb2+
r1QQN1QR/3B3N/bnq1B3/2B1n2Q/k3bBQp/1n1NN3/K1R4b/b7 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bb7 d5 Ra5 bxa5 Bc8 e4 Kd7 d4 h5 Kd2 f5 Kc2 c5 Kb2 f4 g4 a3+ Ka2 c4 d6 f3 g6 f2 b6 Kc6 g5 Kb5 a6 Qc7 g7 Bg4 g6 Qf7 b7 Qe6 a7 Rh7 a8B Qd5 e6 Bf5 e7 Na6 b8Q+ Ka5 e8Q c3+ Bc4 f1B e5 c2 d7 Bd6 d8B+ Bc7 e6 Qc6 d5 Nh6 g8Q B1h3 e7 Ka4 g7 Qb5 d6 Bf1 d7 Qc6 Nd2 Be6 Qc8 Be5 Bb6 Bh2 d8Q Bf4 Bc5 Bd3 Nh3 Nb8 Nf2 Nf5 Nf1 Bh2 Bf4 Nd6 Ne3 Nf7 Qg4 Bef5 Rac1 Rh8 Be6 Ba6 Nd3 Ne5 Qef7 Bh7 e8N Be4 Qfg6 Nbd7 Q6g5 Qb5 Bc6 Nb6 Bcd7 Qc6 Q5f5 Bg1 Rh2 h4 Qfh5 Kb5 Rd2 Bh2 Rg1 Ka4 Rgd1 c1B Rc2 Bb2 Rb1 Ba1 Rbb2 Nd5 Rb8 Nb6 Qgf7 Nd5 g8N Nb6 Ngf6 Rf8 Nh7 Rg8 Kb1 Rh8 Qfg8 a2+ Kc1 Bd4 Ra8 a1N Kb1 Nb3 Ka2 Ba1 Qe7 Nf3 Qgf8 Bc3 Nd6 Ng5 Qb7 Rg8 Qff7 Rg6 Rh8 Ba1 Qa8 Rf6 Qfg8 Rf8 Qb7 Rc8 Ne8 Ra8 Qd8 Nf3 Qbc8 Ne5
k1n2N2/1NnR4/1B2BbB1/1N1q2q1/4rbQ1/3pR2B/1R1NQ1Bn/1R3nK1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 f4 Qb6 e4 Kd8 exf5 Kc7 f6 Qc6 f7 Qb6 f5 Bb7 h3 Be4 f6 Bf5 Na3 Kc8 Nb1 Qd8 Qd3 Kc7 gxf5 g4 Qd1 g3 Na3 Ra6 Nb1 Rd6 Be2 Rd4 Bf1 Rg4 hxg4 Kc8 Ke2 Kb7 Ke1 Kc7 b4 Kb7 c4 h5 g5 e5 b6 d5 b5 d4 g6 e4 c6+ Ka8 g7 a4 c7 e3 c8B e2 b7+ Ka7 c5 h4 b6+ Ka6 c6 g2 Kf2 a3 c7 a2 Be3 d3 Rh3 e1N Ne2 g1N Nd2 Qe7 Be6 Nef3 c8B Rh7 Nc3 Ne2 Rb1 a1B Nb5 Be5 Bg2 Nc6 b8Q+ Ka5 b7 Ka6 Bb6 Bb2 Qf4 Rh6 Qg4 Ng3 Qe2 Nh2 Kg1 Ngf1 Re3 h3 b8R+ Qb7 Bcd7 Nge7 g8B Nc8 Bh7 Rh4 Bg6 Bh6 f8R N6a7 f7 Qd5 f6 Bf4 Rd8 Qg5 f8N Bd4 f7 Bf6 Nd6 Nb5 Nb7 Nca7 Bc8 Nc7 Rd7 B4e5 Qgf3 Re4 Qg4 Bf4 Bef5 Nab5 Ne6 Nd6 f8N Bd8 Ba5 Ka7 Nd4 Bf6 Be6 Bg7 Nc5 Bf6 R8b2 Ka8 Nb5 Qe5 Ba6 Qg5 Bb6 Nc8 Nb7 Nf3+ Kf2 h2 Bh3 h1Q Bg2 Qh8 Bh3 N3h2 Kg1 Qg8 Nc5 Qe5 Ba2 Qg5 Bb7+ Kb8 Bbd5 Re5 Bdg2 Re4 Nb7 Ka8 Bb3 Qe6 Bc4 Qc6 Be6 Qcd5
4qK2/QrB2NN1/1R2B1p1/bN3R1R/2B2Bk1/B1Q2b1r/3bNrqR/2q5 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Ne5 axb3 Rb8 b4 Ra8 b5 Nc6 h4 e6 h5 Nd4 h6 g6 Nh3 Nf5 Ng1 Ng7 hxg7 Nh6 Ne2 Qe7 Ng1 Nf5 gxf5 Qd8 Kf2 h5 Ke3 c5 Kf4 a5 Kg5 h4 g8B a4 b4 e5 d4 a3 b6 a2 d6 c4 b7 h3 b8Q e4 d5 c3 b5 e3 b6 c2 b7 h2 Na3 e2 Qd2 e1B Qc3 Rh7 Bc4 Qc7 Bf4 Ra6 Qd3 Ra7 Nb5 c1R Ne2 Qb6 Qf3 Ra6 Qa7 Bg3 b8R+ Kd8 d7 Bg7 f8B Qd4 f7 Ra3 f6 Re1 Rb6 Rc3 Ba3 Rg1 f8N Qe4 f7 Rg2 Raf1 a1Q Rf2 Bd4 Qd3 Rg7 Kh6 Qc1 Qf3 Bc5 Ne6+ Ke7 d8N+ Kf6 d6 Kf5 d7 Bb4 f8R+ Rf7 Qe3 Kg4 Qd3 Rg7 Rf5 Ba5 Qc2 Rd3 Qc3 Bb7 Bf7 Bd5 Bg8 Re7 Bf7 Bh4 Kg7 Bc6 Kf8 Rf3 Bfd6 Bg5 Ng7 Bd2 Bf4 Rgg3 Rg2 Rf2 Bfd5 Qe3 Nf7 Qe6 d8B Rb7 Bdc7 Qd7 Rhg1 h1Q Be6 Bf3 Re1 Qh2 Rh1 Qhg1 Rh6 Qgf1 Rgh2 Qg2 Rh8 Rh3 Rhh5 Qe8+
2r1r1r1/kr3Q1B/1N5R/pr3BQB/2B1q1QK/QR1R3q/3Nn2B/b5R1 w - - 0 1 legal: proof: c4 b5 f4 g5 a4 f5 axb5 e5 fxe5 d5 cxd5 f4 g4 Bf5 gxf5 Nd7 h3 Ndf6 h4 g4 Bg2 Ne4 Bf1 Ng5 hxg5 Bb4 Rh3 Bd6 Rh1 Bf8 Kf2 Kd7 b4 Kc8 d4 Kb7 e4 a5 d6 c5 d5 h5 g6 c4 g7 h4 d7 h3 d6 f3 Kg3 f2 b6 c3 f6 c2 b5 h2 e6 Rc8 e7 Kb8 e8B Rh7 e5 Be7 e6 Nh6 g8B Rc4 b7 Bf8 f7 Qf6 d8Q+ Ka7 b8R Rf4 d7 Rh8 e7 Ra4 Nd2 Qc3+ Kh4 g3+ Nc4 g2 b6+ Ka6 b7 Qb3 Qg4 Qb5 Nf3 g1R Nb6 Ra2 Bc4 f1R Nd2 Rf4 Bh7 Bg7 f8Q Rf5 Beg6 Rb2 e8B Ka7 Qf7 Qa4 Qdg5 Rfb5 d8R Bf6 Bd7 Re8 Bdf5 R2b4 Bb2 c1R Bh5 Qc2 Rd7 Qe4 Be5 Rg2 Rg1 h1Q+ Bh2 Rb3 Rb1 Ba1 Rd3 Rg3 Rbd8 Qhf3 R8d6 Qg2 Bd5 Rcc8 Bc4 R3b4 Rbb3 Qgf3 Qgg7 Rg2 Qb2 Qfe3 Qa3 Qh3+ Kg5 Rg3 b8Q+ Ka6 Nd7+ Rc6 Qd8 Ka7 Rf6 Rg2 Qg3 Rb8 Bfg4 Nf5 Rh6 Nd4 Bgf5 R4b5 Nb6+ Rb7 Qdf6 Rcc8 Q6g6 Rf2 Qf4 Ne2 Qgf6 Qf1 Kh4 Rg2 Qd8 Rg6 Qg4 Rgg8 Qg5 Qh3+
4nb2/2B1Q1RQ/BQ1N1rB1/K4rN1/pN2Rb1q/2pQ2b1/1NB1N1kn/8 w - - 0 1 illegal: No proof kernel
5B2/bnN2R2/rN2Nb1r/R5R1/p1qN2B1/2BB2K1/2QQn2p/1q2RN1k w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Kf2 Kd7 d4 Kd6 b4 e5 g7 a5 f6 h5 b5 c5 f7 h4 b7 e4 b6 c4 g6 h3 g5 e3+ Kg3 e2 Qc2 h2 Nf3 c3 Bb2 Nh6 g8R Qf6 g7 Qg6 Nbd2 Qe4 g6 Nd7 b8N Qe7 b7 Nb6 Na6 Rc8 b8N Na4 Nc7 Rd8 Nd7 Re8 Nb6 Qd8 Ra2 Be7 Rf8 Rh7 g8R Nc5 g7 Nb7 Bh3 Qc8 Re1 Qb8 Nf1 Bf6 Bf5 Re6 Bd3 Ng4 Ra3 Rh6 Ra4 Ne3 Ba1 Bg5 Ra3 Ng2 Ra2 Ke7 d6+ Kf6 d7 Nf4 d5 Rc6 Nd4 Ke5 d8Q Bf6 d6 a4 Rb2 Qc8 Rb3 Qe6 d7 Qc4 Rb5+ Nd5 Qb3 c2 Bc3 c1Q Qc2 Qb1 Ra5 Re6 Qc8 Rd6 d8N Re6 Qd7 Rd6 Kg2 Kf4 N8e6+ Kg4 Kf2 Rc6 Qd6 Kh3 Qf4 Rd6 Qfd2 Nf4 Rfa8 Nc5 f8B Nb7 Re8 Rc6 Re7 Rd6 Rf7 Rc6 Ke3 Kg2 Ke4 Kh1 Kf3 Nh3 Kg3 Ng1 Rh8 Rd6 g8B Rc6 Bgh7 Rd6 Bhf5 Rc6 Rg8 Rd6 Rd1 e1B+ Kf4 Rc6 Rg5 Bf2 Re1 Ne2+ Kf3 Be3 Bg4 Bg1 Nf5 Bc5 Nfd4 Rd6 Nd7 Ba7 Nb6 Nf4 Kg3 Rc6 Nbd5 Ra6 Nb6 Ne2+
1KB4B/1n2NQB1/1p1NpR2/q1r4r/R2rq1Q1/1kN3n1/3BNQ2/q1Q3N1 w - - 0 1 legal: proof: f4 a5 e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 Kf7 bxa5 Be6 h3 Bh6 f6 Ke8 g3 Bf7 f5 Bf4 gxf4 g3 Qf3 Bh5 Qd1 Bg4 hxg4 Ra7 Be2 Ra6 Bf1 Ra8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 a4 c5 a6 b6 g5 c4 a5 g2 g6 e6 f7 h4 f8B+ Ne7 d6 c3 g7 c2 g8N h3 d7 h2 Kd6 Qe8 Kc7 Qg6 d8N Qg3 d5 Nc6 d6 Rh6 f6 Rh5 d7 Qg5 a7 Qc5 f7 Nf5 a6 Nfd4 f5 Na5+ Nc6+ Kb3 d8N Rh7 f6 Qa3 Bg7 Ka4 f8B Rh4 f7 Rb8 a8Q Nab3 a7 Qa2 Ba6 Na5 Nc3+ Kb3 Nb7 Nf3 Bd2 Qb2 Nd6 Nc4 Bc8 Rh7 Qb7 Rh3 a8Q Nh4 Ra4 Nf5 Nge7 Na5 Qg4 c1R Bh8 Ng3 Bfg7 Qa1 f8Q Rh5 Qf2 Qa2 Qaa7 Rc2 Qba6 Nb7 Qaf1 Qa1 Qc1 Ra8 Bd7 Rd8 Bc8 Qa2 Kb8 Rd7 Nge2 g1Q Ne5 Qa1 Nf3 Qe1 Rf1 h1Q Nfg1 Qe4 Qf7 Rd8 Rf6 Rd7 Qa5 Rd8 Qaf5 Rd7 Ncb5 Rc5 Qf2 Rd8 Nbc3 Rd7 Nc4 Rd4 Nd6 Qf1 Nf4 Qb5 Nfe2 Qa5
q4r1k/1BqN1r1n/2r1R1B1/B1bRqnQ1/R6Q/1Nn5/1Q4BR/4RQKb w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 Kf2 Kg7 b4 c5 d4 a5 g4 h5 b6 e5 b7 e4 f6+ Kh7 f7 h4 b5 a4 f5 a3 b6 c4 f6 c3 d6 h3 d5 c2 d7 h2 d6 a2 Nf3 Ra4 Qe1 Ra7 Bg2 Be7 f8Q Ra8 f7 Ra6 Bd2 c1Q Ne5 Nh6 Ba5 Ng8 Nd2 Qc6 Nb3 Qdc7 d8R Bf6 d7 Bg7 g6+ Kh6 g5+ Kh5 Rb1 Bf6 g7 a1R g6 Ne7 g8B Nf5 g7 Kh6 Bh7 Qa4 Bg6 e3+ Kf1 Rh7 g8B+ Rg7 Qd2 Be7 Re1 Bc5 Qe7 Ra8 f8Q Rc1 Re8 Qa3 d8Q Nd7 b8R Bb7 Qb2 Nf6 Nd7 Nh7 B8d5 Bc6 Qff6 Rf7 b7 Rc3 Qh4+ Kg7 Qeg5 Qa2 Re4 Qa4 Rd4 e2+ Kf2 Qa3 Qgc1 Qa1 Qdg5 Rc2 Rh8 Raf8 b8R Qa3 Rhf1 h1N+ Kg1 Nf2 Rb6 Nd1 Rf4 Nc3 Qd1 Ba8 Bb7 Qa1 Re6 Rc1 Ref1 e1Q Rfe4 Qeg3 Rfe1 Qge5 Qde2 Qa4 Qef2 Qac6 Ra4 Qa6 Red4 Qa7 Qf1 Qab8 Ba6 Bf3 Bb7 Qa8 Bh3 Bh1 Bhg2 Nf6 Rh5 Nh7 Rh6 Kh8 Rh5 Be7 Rd5 Bc5+ Qhf2 Rd1 Rh2 Rd4 Qfh4 Rb4+ Qhf2 Rb6 Qd4 Rc6 Qdf2 Ba3 Qfh4 Bc5+
1b1RbK2/Q1R1n2N/1r1n1R2/r2R1R2/N3qQ1B/1bbbB3/1B2r3/N2N1B1k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 c4 d4 a4 g4 c3 b4 a3 d6 h4 b6 Kc6+ e6 h3 e5 Kd5 d7 h2 g6 a2 e7 c2 e8Q f6 e6 Ba6 g5 Qc8 d8B Bg7 b7 Bf8 b5 Bg7 b6 Rh5 Qd2 Qc6 e7 Qc5 Nh3 Be2 Na3 Bf8 g7 Qd6 Kg6 Ke4 Kf7 Kf3 g6 f5 d5 f4 Bb2 c1R Nf2 Re5 Nc2 Qb4 d6 Rg5 d7 Rg3 Nd1 Na6 b8N Rh3 b7 Nc5 Na6 Rh7 b8B Qa3 Ba7 Ne4 Be3 Rh6 Nc5 Bb5 Na4 Qb4 Rb1 Ra5 Na1 Rc3 Rc1 Rc2 Qd4 Bc6 Qa7 Re2 Rc2 Bb5 Rc7 Qd4 Rg1 h1B Rg5 Bd3 Rf5 Nd6+ Ke6 Bc2 Qf7 Bb3+ Rd5 Bg2 e8N Ne7 g8R Qe4+ Kf6 Kg3 Rf5 Kh2 Rh8 Rh4 g7 f3 g8R f2 Rgg5 Kh1 Rh6 Bf3 Rd5 Bh5 Rgf5 Rg4 Rg6 Bh6 Qf8 Bf4 Kg7 Be5+ Nf6 Bg3 Nc2 a1B Nh7 Rf4 Re6 Be8 Ref6 Rh4 Qf7 Rh6 Kf8 Bh2 Ba3 Bd4 Bb2 Bc3 Na1 Nb5 Rb7 Bb8 Rc7 Rg6 Qg8 Rh6 Qg5 Nd6 Qf4 Ndc8 Rf7 Rb6 R7f6 Nd6 Rg6 Ng8 Bh4 Ne7 d8R Nc6 Bh3 f1B Rgf6 Ne7 Rcc5 Rd2 Rc7 Bd3 Bf1 Re2
QBkn3b/R3K1BQ/6rb/q2Q2RQ/3Q2bn/N1n1R2r/RN3r2/B1nB4 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 g5 Kd4 c5+ Ke5 a5 h4 e6 b4 c4 d4 g4 f4 a4 d6 c3 d5 c2 f6 a3 b6 a2 h6 g3 b7 g2 h5 Qe7 h7 Nh6 f7 Ng8 b5 Nf6 b6 Ra6 f5 Qd8 h6 Ra3 Qd4 Bg7 f8R Rc3 Rf7+ Qe7 Bb2 c1N Ne2 g1N Rh5 Rc4 Nf4 Kd8 d7 Qf8 Na3 Qe8 Kd6 e5 Be2 e4 Nd3 e3 Bd1 e2 Rg5 Rg8 h8Q e1B h7 Na6 b8Q Bd2 b7 Be1 Qa8 Rc5 b8B Bc3 Re7 Nc7 Re3 Bd2 Bc3 Qh5 Nb2 Bh6 Qg7 Rb5 h8Q Ne6 Qf7 Rc5 Qhh7 Nf3 Qfg6 Nh4 Qgf7 Ng4 f6 Nf2 Qfg6 Bg7 f7 Bh8 f8B Rc4 Qgf7 Rg6 Bg7 Rb4 Qf3 Rb3 Qf5 Qg4 Qf3 Qf5 Qfh5 Ne4+ Kc6 Ke7 d8R Qe5 Rd6 Nd8+ Kc7 Qf5 Ra6 Ke8 d6 Qa5+ Qb6 Bf5 Ra7 Bg4 d7+ Ke7 Bce5 Nc3 Qd5 Rb4 Qa8 Rf4 Qd5 Rf2 Qa8 Nc6 d8Q+ Ke6 Qd3 Ke7 Qd5 Nd8 Rg3 Ke8 Bef6 Be3 Kd6 Bd2 Qbd4 Be3 Rb1 a1R Rh3 Ra2 Ra1 Rh2 Rg3 Rh3 Rf3 Ne6 Be5 Kd8 Rg3 Kc8 Ke7 Bf4 Re3 Nd8 Na4 Rg2 Nb2 Re2 Ra2 Rf2 Nbc4 Ra6 Qd2 Bf3 Rg3 Na4 Ba1 Bh6 Nb2 Rg6 Rg5 Nc3 Q2d4 Bg4
1KNRBqB1/2rQR1B1/2R2nbN/Q7/3b4/1nr2QB1/r1nk2Bb/Q2b3R w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 a3 f7 h3 g6 c4 g5 a2 f5 h2 b6 c3 d6 c2 g7 Rh6 g6 Ra6 f6 Rh8 b7 Rh7 Ne2 Ra3 Bg2 Rb3 Nd4 Rbh3 Nc3 Rd3 Nd5+ Kc4 b4 Qb6 d8Q Rh6 b5 Rg3 d7 Be7 f8Q Rc3 f7 Rf3 Bf4 c1B Bg3 Bc5 Nf5 Rh8 Nh6 Rh7 Ne7 Na6 b8Q Kc3 Qbd6 Nf6 g8B Qb8 b6 Bd2 Re1 h1B g7 Nb4 b7 Nc2 Rb1 a1N Qc1 Qa8 b8R Nb3 Rb6 Bde3 Qd5 Bg1 Rc6 Bh2 Qa3 Rd3 Qa1+ Kd2 Qfe8 Ba6 f8B Bd4+ Kd6 e5 Kc7 e4 Nc8 e3 Qf3 e2 Bf7 Rc3 g8B Bd3 Bg7 Bg6 Qee7 Qa3 Kb8 Qc5 Qee8 Qa3 Qa5 Qf8 Bh3 Bg2 d8R Bf1 Qe6 Bg2 Rh1 e1R Be8 Re2 Rbe1 Bf1 Qeg4 Rg2 Re4 Be2 Qd7 Rf2 Bg2 Bd1 Bh8 Rf7 Bg7 Re7 Qe6 Rc7 Qd7 Re2 Re7 Re5 Qa7 Ra5 Qa8 Ra3 Qa5 Ra2
3QBKB1/3Q1B1n/5r2/1bRn3R/2QrRQ2/6rn/1R1b1qNq/1NB1Bnk1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 g4 a5 f4 a4 b4+ Kb6 d4 c5 f6 a3 f7 e6 f5 h4 f6 a2 g6 c4 g5 h3 g7 h2 d6 c3 d5 c2 d7 Rh6 g6 Qe7 d8B+ Qc7+ d6 Ra4 Nf3 Bb7 Nh4 Bc6 Ng2 Ne7 g8B Nd5 g7 Na6 Qd3 Rg6 Qc4 Nc5 Be2 Ra3 Bh5 Rag3 Re1 h1N Re4 Be7 f8Q Nf2 f7 Nh3 Qe8 Bg5 f8R Rf6 Qd7 Bd2 Bgf7 Nb3 g8B Nc5 Rh4 Ne4 Re8 Neg5 Be7 Qb8 Rc8 Qc7 Re4 Qb8 Be8 Qc7 Bhf7 Qb8 Ba3 c1R Bf8 Rcc3 Bc1 Rcd3 Bg7 Rd4 Rc7 Bb7 Rc5 Bc6 Bh6 Nh7 Be3 N7g5 Bf2 Qc7 Be1 Qb8 Nc3 Qc7 Rb1 a1N Rb2 Nc2 Nb1 Nce3 Qe7 Qb7 d7 Nf1 Kd6 e5+ Qe6 Qa7 d8R Bd7 Ra8 Qa2 Ra5 Kb7 b6 Bb5 Rh4 e4 Rg4 e3 Re4 Nc7+ Ke7 e2 Kf8 Nd5 Qd7+ Kb8 Bf2 e1Q b7 Qe3 Be1 Qf3 Ra3 Qf2 Rf3 Ka7 b8Q+ Ka6 Qe5 Kb6 Rf5 Qb3 Qf4 Qbe3 Nh4 Qh2 Ng2 Qf2 Rfe5 Nf3 Rh5 Nfg5 Qc2 Rf5 Qc3 Rf6 Qc4 Rdd3 Qc3 Qe3 Bf2 Ba4 b5 Ne7 Rf5 Rd5 Qb3 Kc5 b6 Bb5 Be1 Qd4 Re2 Qe3 Qfc7+ Kd4 Qcd8 Ke4 b7 Rd4 Rd5 Kf3 Qc4 Qeg1 b8Q Qf2 Rc5 Nd5 Re4 Re6 Ne3 Rf6 Ng4 Kg2 Qf4 Kh1 Ne3 Kg1 Ng2 Nh7+
4qNBR/1B3R1n/qN5r/4Q2Q/Bq2NB2/rR2qRN1/kb3bnK/6Rb w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 g4 Kd6 f4 a5 Kf2 c5 Kg2 h5 b4 e5 f6 a4 b6 c4 f7 c3 f5 c2 g6 e4 b7 h4 f6 a3 g7 a2 g5 e3 b5 h3+ Kh2 e2 b6 e1Q g6 Rh6 Bb5 Nd7 b8N Ne5 b7 Bd7 Nd2 Bc8 Qh5 Qf1 Ne4+ Kc7 d6+ Kb6 d5 Ka5 d7 Kb4 d6 Kb3 Ne2 Ra4 N2g3 Be7 f8R Ra5 f7 Qe8 d8Q Ra4 d7 Qf4 Rg1 Nc4 Qc7 Bc5 d8R Qe3 Nd7 Ra3 b8R Nf6 g8B Bb7 g7 Nh7 Qce5 Bc6 Bd2 c1B Nb6 Bb2 Raf1 a1Q Ba4+ Ka2 Rf3 Qae1 Bc1 Qa5 Rd3 Qa6 Rb3 Bd5 Kh1 h2 Kg2 Qe1 Bf4 Ne3+ Kh3 Ng2 Rb7 Qeb5 Rd8 Qea5 f8N Qe8 Rf7 Qb4 Rc8 Bf2 Rd8 Nf6 Bh7 Bc6 g8B Bd5 Bf5 Nh7 Bc8 h1Q+ Kg4 Ne1 Bb7 Qg2 Kh4 Qgf1 Kg4 Qfe2 Kh3 Qe3 Kh2 Ng2 Rdd7 Ng5 Rh7 Bc6 Rh8 Nh7 Rf7 Be1 Nd6 Nh4 Rf2 Bh1 Nde4 Ng2 Rf3 Bf2
4KB2/1rkn2R1/1bN1BqnB/7b/2q1NR1Q/7R/N1n1R2B/rR1Q1nqN w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Kc4 e5 d4 g5 f4 a5 b4 a4 h4 g4 f6 a3 d6 g3 Kd5 a2 b6 c4 b7 c3 b5 c2 f5 e4 f7 g2 b6 e3 h6 e2 h7 e1N f6 Nh6 h5 Qe7 Ne2 g1N Rh3 Nd3 Nd2 Nf5 h6 Ra6 Ne4 Kd8 d7 Nb2 N2g3 Rg8 h8R Rg6 h7 Ra7 Bc4 Nd6 Bh6 c1Q Nh1 Nb5 Rg8 Na4 h8R Rg4 Rg7 Qe8 Rb1 Be7 Ke6 a1Q f8B Nf3 d5 Nh2 f7 Nc6 b8B Qcb2 b7 Nf1 Bh2 Na3 b8N Nc2 Na6 Rg1 Nb4 Nb6 Na2 Ne5 Bb3 Kc7 d6+ Kc6 Re3 Ng6 Re2 Qc3 Rhh7 Qd8 Bc4 Qc7 Bb3 Ba6 d8Q Rb7 d7 Bc5 Qh4 Qf4 d8N+ Kc7 Bc4 Nd7 Nc6 Bb6 Bd5 Qc4 Rh8 Nge5 Ke7 Ng6+ Ke8 Qf6 Be6 Qc5 Rf2 Be2 Rhh7 Bh5 Re2 Qf2 Rb2 Q6d4 Bc5 Nh8 Qd3 Ng3 Qe7 Q4f3 Bd2 Bg4 f8R Re1 Rh3 Ra1 Qh4 Qc4 Bh6 Qg1 Qd1 Ng6 Rb1 Bh5 Rff7 Qfc3 Rf4 Qf6 Bf8 Nf1
NK3b2/bB2B1R1/NB3n2/r2B1r2/RQ1r1Q2/3q2Nb/b1k3N1/1nqR1BR1 w - - 0 1 illegal: No possible last move
3n1q1k/BR1brQNn/B2Rr3/1B6/2Nb4/3rN2q/1B1b1R1K/b2NRNQ1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 Kf2 Kg7 Kg3 c5 d4 e5 b4 a5 d6 h5 b6 a4 d7 h4+ Kh2 h3 g4 c4 d5 a3 b7 c3 b5 c2 b6 a2 g6 e4 d6 e3 f6+ Kh6 g7 Kh7 f7 e2 f5 e1R g5 Ne7 g8N Re4 g6+ Kg7 Bb5 Ra5 Nd2 Rhh4 f6+ Kh8 g7+ Kh7 Ne2 Rc4 Nc3 Rhd4 Bb2 c1B Rb1 a1B Re1 Nf5 Ne7 Rc6 g8B+ Kh8 Ned5 Rh4 Ne3 Rcc4 Ndf1 Bg7 f8Q Rhd4 f7 Qe7 d8R Nh6 d7 Na6 b8B Rc7 b7 Bf6 Ba7 Bd2 b8N Nc5 Nc6 Ra6 Ne5 Rd3 N5c4 Nb7 Qg4 Rb6 Qg1 Bd4 Ncd1 Re6 Qe8 Qf6 f8R Nf7 Ba6 Ng5 Qf7 Qg7 Bh7+ Qg8 Be4 Nh7 Bc6 B2c3 Bcb5 Bd2 Rfe8 Qf8 Re2 Rcc6 Rf2 Re4 Re6 Rb6 Rd6 Re7 Re8 Rc6 d8N Bd7 Ne6 Nd8 Ng7 Rb6 Kg3 h2 Kg2 h1Q+ Kg3 Qf3+ Kh2 Nb7 Rb8 Nd8 Rb7 Qg4 Nc3 Qf5 Re1 Qf3 Ncd1 Rc6 Rd5 Rce6 Rd6 Qh3+
2BNbB2/Q2b1Q2/r4K1B/r2Q4/RB5k/bR1p2nN/2N2Qn1/nBrq2N1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 b4 d4 c4 a4 g4 h4 f4 a3 f6 Kg6 f7 h3 f5+ Kg7 f6+ Kg6 b6 a2 b7 h2 b5 e6 c6 Bg7 f8B Rh5 c7 Qd7 c5 Rh3 b6 Qb5 Qc2+ Rd3 Qf2 Rc3 Na3 Nh6 Bd3+ Nf5 Nc2 Qb1 c6 Ra7 Bb4 Na6 b8N Qb3 b7 Bh6 f7 Qb2 f8B Bd7 c8N Ra3 c7 Qb3 Nd6 Qa4 c8B Nc5 Ne4 Ra5 Nc6 Ne3 b8Q Ng2 Qa7 Be8 Rb1 a1N Nd8 Qd7 Rb3 R3a4 Nc3+ Ne4+ Nd5 Ra3 Ne3 Ra6 Bb1 R3a5 Nc2 Ng3 Bcd2 Kh7 Kf6 e5+ Bbd6 e4 Nf4 d3 Nfh3 e3 Bb4 e2 g6+ Kh8 g7+ Kh7 g5 e1R Bd2 Qg4 Bc1 Qd1 Be3 Bc6 Bb4 Bd7+ Ke7 Kg6 g8Q+ Kh5 g6 Bf4 g7 Bb8 Qgf7+ Kh4 g8Q Bd6+ Kf6 Rf1 Beh6 Be8 Ne2 Rg1 Qd5 Re1 Rf1 h1B Neg1 Bd7 Bbd2 Ba3+ Qge6 Qg4 Bdb4 Rc1 Re1 Qd1 Re4+ Nf4 Rd4 Be4 Rc4 Bg6 Rd4 Bge8 Re4 Bc6 Qef7 Bcd7+ Bbd6 Bb5 Ra4 Bbc6 Bb4 Ng2 Ke6 Bb5+ Ke5 Bbc6 Kf6 Bcd7+
1Q3Nr1/3b1rn1/Q1RK1p1N/3Q2B1/B3Bq1b/R1qq1R2/B2kBQ1R/2n2b2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 c5 Kf4 a5 g4 h5 e4 a4 b4 h4 d4 c4 e6+ Kd6 g6 h3 e7 h2 e8Q a3 g5 a2 e5+ Kc7 g7 Kb6 d6 c3 d7 c2 g6 Qc7 d8R Qb7 d5 Ra5 e6 Qc6 Ke5 Rh4 e7 Bf5 d6 Rg4 d7 Bd3 Nh3 Ra6 Qe1 Qb7 Nd2 f6+ Kd6 Qa7 Qf2+ Kb7+ b6 Rg2 b5 Nh6 g8B Rg4 g7 Rg6 Bh7 Qa8 g8B Ng4 Ne4 Nc6 Bg5 c1Q Be2 Bh6 Nf4 Ra7 Ne6 Nge5 Nf8 Qf4 Rc8 Nd8 Rc6 Ne6 d8Q Ng7 Ng3 Qc8 Rhf1 Qh3 Nf5 h1B Qf7 Bf3 Qd5 Bg4 e8B Bc4 Rh1 Qd3 Rh2 Bh3 Rf1 a1Q Bd7 Bg4 Qe7 Bh3 Qe6 Qac3 Ra1 Bf1 Ra3 Bb3 Be8 Ba4 Bgf7 Ka8 Bfg8 Rf7 b7+ Kb8 Qg3 Ka7 b6+ Ka6 b8R Qcd2 Qf2 Qc3 Bh4 Bg5 Nh6 Qb5 b7+ Ka5 Qc8 Kb4 Ra8 Qbc4 b8Q+ Qb5 Qa6 Nd3+ Qe5 Nc1 Bd7 Qe1 Rf3 Qc3 Ra7 Kb3 Be8 Kc2 Bd7 Re7 Ba2 Rf7 Be8 Kd2 Ra8 Qfe3 Qd5+ Qbd3 Bd7 Ne6 Be8 Rg8 Be4 Qed4 Qac8 Bb5 Ra3 Ng7 Qa6 Q4e3 Bg3 Ba4 Bf4 Bh4 Bg5 Bb5 Rc8 Bd7 Rc5 Bf5 Ba4 Bd7 Rc6 Qf4+
3B3Q/p1R1Nq2/KN1n3b/1NQBnR1n/nBb1B1rr/5n2/k5NR/1RB5 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 h5 g4 e5 b4 c5 d4 e4 f4 e3 g6 h4 f6 e2 f5 e1N f7 h3 g7 h2 b6 Nd3 Kb5 c4 f6 c3 g5 c2 g6 Rh7 b7 Qc7 Qh5 Bf5 Bg2 Qc8 Na3 Nc5 Ne2 Be4 Rb1 Ne7 g8B Nec6 g7 Nca6 Nf4 Bf5 Be4 Nc5 Ng2 Nba6 b8Q+ Kd7 d6 Ke6 d5+ Ke5 d7+ Kd4 d8R Kc3 d6 Bh3 d7 Qc7 Rc8 Nb7 d8B Qd7 Rc7 Nac5 Qg5 Na4 Ka6 Bg4 b5 Be2 Qc5+ Bc4 Qc8 Nd6 Qb8 Be7 f8B Rh4 Bgd5 Nd4 g8N Nf3 f7 Bg5 Ne7 Bh6 Qc8 Nb2 Qb8 Kb3 Qc8 Ka2 Qb8 Bb3 b6 Bc4+ Nb5 Na4 b7 Rg4 Qc8 Qf5 b8R Qe6 Rf1 h1N Rb6 Ng3 Rh1 Nb7 Rh2 Nh5 Qb8 Qd7 Rf6 Nd6 Rf5 Qe6 Bg7 Qg6 f8N Qf7 Nd7 Rh4 Bgb2 Rg4 Bd2 c1N Bb4 Nd3 Bc1 Nde5 Qbb6 Nc8 Qf6 Nd6 Qh8 Rb8 Nb6 Rc8 Nc6 Ra8 Bh4 Rag8 Bd8 Rh4 Ne7 Rgg4
Nn4k1/2BnR1N1/5bRn/NrRp2QQ/1R1BB3/b1Nr3K/3N2n1/1B3bq1 w - - 0 1 illegal: No possible last move
5r2/prQN1QQ1/4R3/1R3qR1/rbR3nK/kBN3QN/3B1bbn/b2N2R1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 d4 Kd6 f4 e5 Kf2 g5 Kg3 c5 h4 g4 b6 e4 h6 c4 h7 e3 f6 c3 b5 e2 h5 e1R h6 c2 f7 Be7 f8Q Bf5 b7 Nf6 b6 Qe8 Qg7 Rf8 h8R Rf7 h7 Qa4 Rc8 Qc6 h8N Re2 Bd2 c1B Ra5 Na6 b8R Bh7 b7 Be4 f5 Nc5 Nh3 Na6 Kh4 g3 Nf2 g2 Qe1 g1B Nc3 Nc5 Nfd1 Bf8 Qeg3+ Kd7 d6 Na6 d5 Be7 Ng6 Bc5 Nf4 Re3 Nh3 Bb2 Bc4 Nc7 Bb3 Ba1 Rg1 Ng4+ f6 Nh2 Re8 Bf8 Re6 Ne8 Ra4 Qc8 Rc4 Re7 f7 Rf3 Kg5 Bf2 Kh4 Kd8 d7 Nf6 Re1 Nfg4 Rh1 Re8 Rg1 Bb4 f8Q Rf4 Qff7 Re7 Rh6 Bbc5 Re6 Kc7 d8R Bg2 d6+ Kb6 d7+ Ka5 Rg8 Bb4 d8Q+ Rc7 Qh7 Qd7 Rg5+ Qb5 Qhg7 Qf5 Rc8 Rd4 b8N Re4 Qd6 Rb7 Nd7 Rab8 R8c6 Rf8 Rb6 Rf4 Qc7 Rd4 Ba2 Rf4 Ne4 Ka4 Nec3+ Ka3 Bb3 Rd4 Rb5 Rd6 Nb8 Ra6 Nd7 Ra4
bQQR2nN/4q1r1/1r6/b1Rr4/5n1K/NQ1p1qNR/r1R1BRQ1/1N2k1B1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 f4 Kf6 Kf2 g5 Kg3 e5 b4 d5 h4 a5 b6 e4 h6 a4 h5 d4 c6 g4 c5 a3 h7 d3 b7 a2 b5 e3 h6 e2 b6 e1R c7 Re2 c6 Ne7 Kh4 g3 Rh3 g2 Qd2 Re6 Ne2 g1R Ng3 Ra3 Be2 Bd7 c8Q Re3 c7 Rg8 h8R Nd5 h7 Na6 b8Q Nab4 b7 Be8 Qb2+ Re5 Be3 Re1 Bg1 Ne7 Qb3 Re6 Qa8 Bc6 b8Q Rg7 Rh2 Bh1 Qg2 Rb6 Rh3 Qd6 Rg8 Nbd5 h8N Rf7 Rg4 Rg7 Rg5 Ng8 Rh5 Qd7 Rg5 Bb4 Rh5 Ke7 f6+ Ke6 f7 Ba5 f5+ Ke5 f8R Kf4 f6 Qe7 Rd8 Rc1 Rg5 Rc5 f7 Rcb5 f8N Rc5 Nd7 Rcb5 Bh2 Ke3 Ne5 Nf4 Qa7 Qd7 Qab8 Rd5 Rf5 Qe7+ Rf6 Ra4 Nc4+ Kd4 Nca3 Ke3 Qe4+ Kf2 Qg2+ Ke1 Bg1 Qe3 Rc6 Qf3 Rc5 Rc4 Nd2+ Rc1 Rb1 a1Q Rb2 Rc2 Ndb1 Qa2 Qg4 Rd2 c8R Qa1 Rbc2 Qe5 R8c6 Qe7+ Rf6 Qf2 Qgc8 Qf3 R2c3 Rb2 Rc2 Ra2 Ng6 Qfe3 Bf3 Re5 Qh2 Ne6 Be2 Ba8 Nh8 Reg5 Rf3 Nf4 Rf2 Qf3 Qg2 Rd5#
2K1BBrN/1N1Rrb2/QR6/BRR1QnR1/1b6/1pN3B1/qN1n2q1/2n3nk w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 d4+ Ke4 a4 e5+ d6 b5 h4 g5 f4 g4 d5 g3 h6 b4 h5 b3 h7 g2 h6 c6 a6 Qh4 Kb6 c5 Kc7 c4 d7 c3 d8N c2 a7 Qe1 f6 Qe2 f7 Bg4 d6 Qf3 d7 Be7 f8B Qe3 f5 Ba3 a5 Qd3 f6 Qh3 a6 Bf5 f7 Bg4 Bb5 Bb2 Bb4 Be2 f8B Nf6 Qd5+ Kf5 Nf3 Kg4 Kc8 Kg3 Rg1 e4 Bf4+ Kf2 Nfd2 c1Q+ Nc4 e3 Qe5 Qc2 Nb7 Ne4 Ba5 Ba3 Bg3+ Kf3 Nc3 Rg8 h8R Bb4 h7 Qa2 Rac1 Nd2 Nb2 Bc4 Rc2 Qh2 d8R e2 Be8 e1N Rd7 Bf7 Rc1 Rg7 Rg8 Qh1 h8N Nd3 Rge1 Rh7 Rg5 g1N Rf1+ Kg2 Rf6 Rg7 Rb6 Nc6+ Kc7 Nc5 Rb5 Nb8 Nb1 Qa3 Be7 Bg8 Bf7 Nd3 Rcc5 Qa4 Nc3 Nc6 Bh5 Rb8 a8Q Nc1 a7 Nd4 Bg6 Rf8 Be8 Nf5 Kc8 Rff7 Bf8 Re7 Qf6 Qa2 Qb8 Nb1 a8R Nd2 Qbe5 Bf7 Ra6 Rg8 Qb6 Qh2 Qa7 Qh3 Rab6 Kh1 Qa6 Qg2
2Q5/3BB3/3RbN2/3rq2Q/1K1nnprn/2BN2qN/Qn4BQ/N2kb1BR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 Kd2 f5 Kc3 c5 e4 c4 e6 Kd6 e7 a4 e8B f4 e5+ Kc7 d6+ Kb6 d7 a3 e6 a2 h6 g4 h5 g3 h7 g2 e7 Ra5 h6 Ra7 d5 Ra6 d6 Ra7 Qh5 Rb7 Nd2 Qc7 d8Q Nd7 Nb3 Ndf6 d7 Ra7 Nh3 g1Q Be3+ Kb7 b6 Ka6 b7 Qc6 b8Q Qe4 Rd1 a1N Qa8 Nc2 Bg2 Nd4 Na1 Qe5 Qd5 Rc7 b5+ Ka5 b6+ Ka4 b7 Rc5 b8N Rb5 Qe6 Rd5 Na6 Qh2 Qc7 Qg3 d8B+ Ka3 Qef7 Be6 Bd7 Ka2 e8N Ne7 Qg8 Nef5 Be7 Nh4 Kb4 Kb2 Nc5 c3 Bg1 c2 Qc8 Ne4 Nf6 c1N Nd3+ Kb1 Qgf7 Rg8 h8B Rg4 h7 Bg7 Bc5 Bf8 Bg7 Bd6 h8Q Bc7 Be7 Ba5+ Ka4 Be1 Rd2 Nf2 Kb4 Ne4 Qcf8 Nde2 Ne8 Nf5 Qh4 Qc7 Ndf2 Re5 Ng5 Bc4 Qh2 Nh4 Ngh3 Ra5 Bd4 Qe5 Bc3 Bb3 Rd6 Nd4 Nf6 Rb5+ Ka3 Nd3 Qhh5 Kc1 Qc8 Nb2 Nd3+ Kd1 Qfg8 Rc5 Kb4 Ra5 Qgc4 Ba2 Q4a6 Be6 Qaa8 Rc5 Qa2 Rd5
4bB2/b2R1q1N/2R3Q1/3K1nr1/2pb1R1q/4RQN1/R1QBn2k/Qb1BB1r1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Ke4 c5 d4 e5 b4 h5 g4 h4 f4 a4 b6 a3 f6 Kg6 d6 h3 f7 a2 b5 h2 d7 c4 f5+ Kg7 g6 Kf6 g7 Ra6 b7 Qc7 d8Q+ Qe7 b6 Rh4 d5 Be6 d6 Bd7 Ne2 Rh6 Nbc3 Nc6 b8B Ra7 b7 Ra4 Qc2 Nd4 Kd5 e4 Bd2 e3 Ng3 Kg5 f6 Kf4 g5 Bc8 g6 Qe8 d7+ Kg4 Nce4 e2 Ng5 e1Q Nh7 Q1e7 Be2+ Kh3 Qa5 Qe3 d8R Ba3 f8R Bc1 f7 Qf2 Re1 Bf5 Rd7 Rh5 Bd1 Rg5 Re3 Nh6 g8Q Ne2 g7 Rb4 Be1 Rb1 Bf4 Kg2 b8B h1B Bbd6 Ba3 Qac3 Bc5 Qh8 Bb6 g8Q Ba7 Qg6 Qe7 Rc8 Kh2+ Rf3 Bg2 f8R Bh1 Rc6 Qf7+ Qe6 Bg2 Bfd2 Bd3+ Qhe5 Nf5 Qa3 Bh3 Re3 Bg4 Qe4 Bh5 Bc5 Qf4 Qf3 Qh4 Be7 Qf6 Qg8 Be8 Qg6 Qg7 Rf7 Rc1 Bf8 Qg8 Rb1 a1B Rb2 Qg7 Ra2 B1d4 Qac3 Rb1 Qa1 Rc1 Qcb2 Bb1 Rff6 Qe7 Qc2 Qf7+ Ree6 Bdb6 Bf2 Ned4 Be2 Rg1 Bd1 Ne2 Bfe1 Ng7+ Rf5 Qf6 Ree5 Bd4 Rf4 Nf5 Re3 Qf7+
R2N1kbR/nn2R3/2R2q2/2b3pb/QQN2Q2/1r4B1/RrBBq3/4bKQB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 g5 b4 a5 d4 f5 e4 c5 h6 f4 h7 f3 b6 a4 h5 a3 d6 a2 h6 c4 d7+ Ke7 e6 c3 b5 c2 b7 Qe8 d8R Nc6 b8Q Qg6 e5 Ra4 d5 Ra8 b6 Bd7 b7 Qf5 Bg2 f2+ Kf1 Na7 Nf3 Qg6 Rc8 Qe8 Nd4 Ba4 Bd2 c1B Rc6 Qd8 d6+ Ke8 e7 Bb3 d7+ Kf7 e8B+ Ke7 e6 Nf6 Bg6 Qc8 d8R Ng4 Na3 Ba4 Bc2 Nf6 Qf4 Ne8 b8B Nd6 Nc4 Qa6 Bge4 Rg8 h8R Nb7 h7 Bb3 Rh3 Bb2 Bh1 Bc3 Re3 Bb4 Be5 Rb8 Qdg4 Rg6 Qg1 Rh6 Re2 Rh2 Rd7+ Ke8 e7 Rg2 Ne6 Bc5 Rae1 a1Q Nd8 Qb5 Bc7 Qf6 Rd3 Ba2 Ra3 Rg3 Ra1 Rb3 Ra5 Rb2 Ree1 Bb3 R1a2 Bb4 Bce4 Bd1 Bc2 Bh5 Bd6 Nc8 Ra8 Na7 Rg8 Qbe5 h8Q Qee6 Qh7 Qg4 Rh8 Qe2+ Kg2 Bc5 Qd3 Bb4 Qa3 Bc3 Qb4 f1B+ Kg3 Bh3 Bc7 Be6 Be5 Qd1 Kf2 Bg8 Kf1 Rb3 Ne6 Kf7 Nd8+ Kg7 e8Q Bc5 Qd7+ Kf8 Bc7 Qg4 Re7 Rb2 Rca6 Qe6 Qda4 Rb3 Rc6 Qe5 Be3 Be1 Bd2 Qe4 Qff2 Qef3 Bg3 Qe2+ Kg2 Rd3 Qbb3 Na5 Qc3 Rb2 Qcb4 Qg4 Qf4 Rdb3 Kf1 Nb7 Re4 Qd1 Re7 Qe2+
1k2b3/5Q2/Rb2r1R1/Q1RR1r2/2NB2q1/B2K1ppR/1nQNQ3/Bq1r1n1B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 e4 c5 Ke2 Kc7 d4 f5 h6 g5 h7 a4 d6+ Kb7 e6 f4 h5 c4 h6 g4 b6 g3 d7 a3 b5 a2 d5 c3 e5 c2 d6 Qc7 d8R Ra3 d7 Qc5 e7 Bg7 e8Q Ne7 e6 Bc3 Qf7 Ba5 Nf3 Re8 h8B Ng8 e7 Bb4 h7 Bd2 Bg2 Ka8 b7+ Ka7 b6+ Ka6 Bd4 Qb4 h8B Ra5 Na3 Rf5 Kd3 Nh6 Nc4 Ng4 Rh3 Ne3 Ba3 c1R Bh1 Nf1 Qc2 Be3 Nfd2 Rd1 Rc1 a1Q Bhg7 Nc6 b8R f3 b7 Na7 Ra8 Qab1 b8R Qa4 Ba1 Bb6 Bgd4 Bb7 Rbc8 Bc6 Rc7 Bb5 Rc6 Kb7 Rg6 Nc8 Ra5 Kb8 Ra6 Rh8 e8Q Rh6 Qe2 Qab4 Rd6 Re6 Rg8 Qa4 d8Q Be8 Rd5 Qd7 Qf8 Qg7 Qf7 Qg4 Rg6 Ba7 Qde7 Nb6 Qc5 Na4 Qb4+ Bb6 Qa5 Qb2 Rb1 Qa2 Rbb5 Qb1 Rbc5 Nb2+
1n1QQ2q/q1q2n2/1N1B1N2/3RBpk1/B1Qp2bb/1B2KQ2/B6r/N3NRr1 w - - 0 1 illegal: No possible last move
2RR1NN1/5Qq1/p1b1Nr2/Q1BR1KNB/QqkbQ3/6p1/nr1rN2n/R7 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kb4 f4 g5 h4 c5 b6 e5 f6 c4 f5 a6 d6 c3 f7 g4 h6 g3 d5 c2 b7 Bd7 h5 Qe7 h7 Ba4 h6 Bb3 f6 Ba4 d7 Kc5 d8R Bb3 d6 Ra7 d7 Qd6 Be3+ Qd4+ Kf5 c1R Nh3 e4 Be2 Bd5 b4+ Kd6 b5 Kc5 b6 Kb4 Bh5 Bd6 f8N Qd2 f7 Bf4 Nc3 Bg5 Ne6 Qb2 f8N Qa3 Ne2 Qc3 Bc5+ Kc4 Qa4+ Qb4 Re1 e3 Rd1 Bc6 Rd5 Bf6 Nhg5 Rb1 Rc8 Bc3 d8Q Rb2 Qd7 Bg7 Qf7 Nf6 Rcd8 Rg8 h8N Ng4 h7 Nh2 Nhg6 Bd4 Ne7 Rg6 h8Q Rd2 Qhh7 Rh6 N2f4 e2 Ng8 e1Q Ne2 Rb2 Qhg6 Qc3 Qa5 Be3 Qa4 Qg7 Rc8 Bd4 Qh7 Nd7 b8Q Ne5 b7 Nd3 Qe5 Nc1 b8R Rd7 Qc7 Rg6 Qca5 Na2 Rd8 Rd6 Rbc8 Rf6+ Ke4 Rf3 Qhf5 Rd3 Qe5 Rdd2 Kf5 Nc3 Qe4 Na2 N6f4 Rg6 N4e6 Rf6+
QQKq4/BB4p1/Bb3R2/2Rb3r/NpN1Q2N/2qn3k/1NQ2B1n/n3Br2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 e5 Kg4 c5 f4 b5 a4 e4 h4 e3 d4 b4 d6 e2 f6 Ke6 f5+ Kf7 a6 e1N a7 c4 d5 c3 d7 c2 h6 Bc5 h5 Rh7 a5 Bd4 a6 Bf2 d6 Qa5 d8N+ Ke8 f7+ Kd7 f8N+ Ke8 d7+ Ke7 Nf7 Kf6 d8B+ Ne7 Bd2 c1Q Nf3 Qc3 Nd6 Bh4 Ne6 Qc2 Nc4 Nc6 Bb6 Qe5 Ra5 Qc1 Qc2 Ng2 Bf2 Qd1 Nc5 Qc3 Bde1 Qdd3 Na4 Qa3 Nab2 Qa2 Rc5 Qa4 Nc3 Bg3 Nh4 Qa5 Nca4 Rh8 h7 Qb5 h6 Rb8 a8Q Qa5 a7 Nd4 Qe4 Ng8 a8B Nf4 Bb7 Qc3 Be2 Ra8 Rf1 Be6 Bd3 Bd5 Be2 Kf7 f6 Nb3 Kf5 Qd8 Bd3 Na1 Be2 Kf8 f7 Nf6 Bd3 Ng4 Be2 Rg8 h8Q Ra5 h7 Bh2 Bd3 Bg1 Be2 Nh2 Bd3 Qa3 Ke5 Ke7 f8B+ Kd7 Bd6 Rb5 Bb8 Rf8 Ba7 Ra5 Qg8 Ke7 h8Q Rf5+ Kd4+ Kf6 Qge8 Kg5 Qeg8 Qe7 Qa8 Kg4 Qhb8 Kh3 Be2 Qd7 Bd3 Rf7 Ke5 Qc8 Kd6 Qc3 Be2 Rf5 Ke7 Nd3 Kd6 Qf8+ Kd7 Qe7+ Kc8 Rh5 Be3 Ra6 Rf8 Rf6 Bd4 Rf1 Rf6 Bf2 Be3 Bg3 Bd4 Bc7 Bdf2 Bb6 Na3 Nc1 Bea6 Nd3 Nac4 Qd8#
B3q2R/Qr2p3/6BQ/KR1NB1nN/B3p2k/R1b1RbN1/2q1b2r/BnN5 w - - 0 1 illegal: Other
1K1bRNRr/b3nnQ1/1pB2QQ1/Np1RR3/2N3Q1/8/b2B1Nrb/Q2q1k2 w - - 0 1 illegal: Other
n2N3k/1p2Bpn1/2p2qB1/Rr3R1B/4RNNQ/2N1K1b1/1r2bnBR/3N2Q1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 g5 e4 c6 a4 g4 h4 g3+ Ke3 g2 d4 Ba3 h6 Kf8 h7 Kg7 h5 Qf8 e6 Qb4 a6 Qc4 h6+ Kf8 d6 Qd5 d7 Be7 d8N Nd7 a5 Nb6 a7 Qh5 e5 Nd7 a6 Nb6 d5 Nd7 d6 Ndf6 d7 Bd6 Ba3 Rb8 a8R Qg4 a7 Qg7 Nh3 g1N Nc3 Be7 Rh2 Ne4 Bg2 Nd2 Nf2 Ne2 Qg1 Qg4 Rf1 Qc4 Nfd1 Nb1 Rf5 Nf6 Bb4 Rg8 h8Q Bd6 h7 Nh5 Qf6 Be7 h8N Qb5 Qh4 Kg7 Ng6 Bd6 e7 Rf8 e8B Nd2 e6 Neg3 e7 Qf1 Ne5 Rh8 Ng4 Nh1 Ne6+ Kg8 d8N Bg3 Bd7 Ng7 e8B Rh5 Bf8 Kh8 Nf4 Nf2 Be6 Bd7 Be7 Bc8 B8d7 Nc4+ Kd4 Nb6 Ke3 Nh1 Bb3 Nf2 Bde6 Bd7 Bc2 Rc8 Rb8 Na8 Bed5 Be6 Bdf3 Bc4 Bb1 Be2 Bbe4 Nb6 a8R Rc7 Bc2 Rd7 Raa5 Na8 Rc8 Rd2 Rc7 Nh3 Rd7 Nf2 Rd4 Kg8 Bd3 Rb2 Re4 Rg5 Nh6+ Kh8 Bh5 Rb3 Ng4 Rb2 Rf6 Rd5 Rf5 Rdb5 Rfe5 R5b3 Nfe6 Kg8 Rd4 Nh3 Bdg6 Qf6 Rf5 Rb5 Nf4 Kh8 Re4 Nf2
rB3N2/1b5p/Q3n1RB/b5q1/B1NQ1NKB/1rpq1N2/k2n1Rp1/4QQ1N w - - 0 1 illegal: No proof kernel
2BrRrKR/3b3N/2N1NN1B/b1Q4N/1NNN1n1k/1Qr2B2/1bq3n1/3qr3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 Ke5 h5 b4 c4 d4 e6 f4 h4 g4 h3 b6 h2 b5 a4 g6+ Kg7 b7 Kh6 d6 a3 b6 c3 d5 a2 g7 c2 f6 Kg6 g5 Rh5 f5+ Kh7 f7 Rh4 f6 Kg6 d7 Ra3 d6 Rc4 Bg2 Rf4 Bf3 Nh6 g8B Ra8 Na3 Rg4 Nc4 Kh5 g6 Be7 f8Q Qe8 d8N Na6 b8N Bd7 f7 Bb5 g7 Bg5 b7 Bd7 Nbc6 Kh4 b8N Nf5 Ne2 Rg3 Nb4 Ne3 Ndc6 Qc8 Nf4 Bd8 Nh5 Nc7 Nd4 Ncd5 N8c6 Ng2 Bh6 c1Q Qb3 Ba5 Bh7 Qd1 g8N Rh3 Ngf6 Ndf4 Bf5 Rg3 Re1 h1R Qe7 Rhh3 f8N Rg7 N8h7 Rf7 Rc1 a1B Rh1 Qd2 Rce1 Qd1 Re4 Bb2 Re3 Be8 d7 Rb8 d8N Bd7 Kd6 e5 Ne6 e4 Ke5 Ra8 Qc5 Rb8 Ree1 e3 Kd6 e2 Rh2 Rf8 Ke7 Rd8 Kf7 Rb7 Rf1 e1R Rhh1 Be8+ Kg8 Rf7 Rf2 Qc7 Re2 Qc8 Neg7 Qc7 Bc8 Bd7+ Re8 Be6 Rf1 Bd7 Nge6 Rg3+ Bg4 Rc3 Bf3 Qe5 Rf2 Qf5 Rc2 Qfd3 Rc1 Q3c2 Ra1 Bb6 Ra8 Ba5 Rf8 Rg7+ Kh8 Qdc1 Ra7 Be8 Re7 Bd7 Ree8 Rf7 Rg8 Rf8 Kg7 Q1d1 Rh8 Rf7+ Kg8 Rf8+
bN1R1N1B/1bQ1b1Br/2K5/1Q2Q2q/1RNQ1r2/1N2r2n/2k3nR/1q4RB w - - 0 1 illegal: No possible last move
2q2N1Q/1Rr1k1Kb/4B1Bn/Q5r1/2B1N2n/pQ2R1N1/1BR1b3/1r2nN1Q w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 c5 Kg3 a5 Kf4 h5 Ke5 h4 b4 c4 d4 c3 f6 h3 f7+ Kd7 f8N+ Ke7 b6 a4 d6+ Ke8 b7 c2 d5 h2 b5 a3 d7+ Ke7 b6 Rh3 Nd2 Rh7 Bb2 c1R Ra2 Rc4 Ne2 Rc6 Ng3 Rc2 Bc4 Qe8 Ndf1 Na6 b8R Rc1 b7 Nh6 g8N+ Kd8 Kf6 e5 g7 e4 g6 Kc7 d6+ Kc6 d8Q e3 d7 e2 Qa5 e1N d8Q Nb4 Q8d3 Nf7 Q3b3 Bg4 Qdf3+ Kd6 Rg1 Ng5 Qh1 Rb1 Rg2 Nf7 Re2 Nh6 Re3 Qc8 Bd3 Nf5 Kf7 Nc6 Nf6 Rh5 g8B Ra7 g7 Nh4 Bg6 Nd4 Nfe4+ Kc6 Rf3 Rg5 Re3 Be2 Kf6 Ndf5 Be6 Nh6 g8B Ra8 Kg7 Ra7 Ned2+ Kd6 Nde4+ Ke7 Bc4 Ra6 Bge6 Rc6 Ra8 Nd3 b8Q Rc7 Ra7 Ne1 Rb7 Bg4 Qg1 h1B Qba8 Bhf3 Qh1 Be2 Be5 Rc1 Rc2 Rb1 Bb2 Bf5 Nh7 Qd7 Qh8 Qc8 Nf8 Rh5 Bgf7 Bh7 Bg6 Rg5
3N2Bb/3R4/2qB4/BR4QN/QrNp4/BRR2nq1/QN2nb2/1Kb2k1q w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 f4 Qb6 e4 Kd8 exf5 Kc7 f6 Qc6 f7 Qb6 f5 Bb7 h3 Be4 f6 Bf5 Na3 Kc8 Nb1 Qd8 Qd3 Kc7 gxf5 g4 Qd1 g3 Na3 Ra6 Nb1 Rd6 Be2 Rd4 Bf1 Rg4 hxg4 Kc8 Ke2 Kb7 Ke1 Kc7 Kd2 d5 c4 h5 Kc2 e5 b4 e4 g5 e3 b6+ Kc6 b7 a4 b5+ Kc7 g6 e2 g7 e1Q b6+ Kc6 Nc3 a3 Kb1 h4 Na4 h3 Ne2 d4 Nb2 g2 Nf4 g1B Bd2 h2 Nh5 Qde7 Ba5 Qb4 Qa4+ Qb5 Bh3 Nd7 b8R Bf2 b7 Bh4 Rc1 Ne5 Rc3 Nh6 g8Q Nd7 Qg5 Bg7 f8N Qf7 Ne6 Qg6 f7 Be1 f8B h1Q Bd6 Ne5 Nd8+ Kd7 c6+ Ke8 c7 Kd7 c8N Qbc6 c5 Bf2+ Bf1 Nf3 Nb6+ Ke8 N6c4 Kd7 Rb3 Rg8 Rc8 Bh8 b8R Rg7 R8b5 a2+ Kc1 Rf7 f6 Nf5 Kc2 Rh7 f7 Ng3+ Bd3 Rh6 f8B Ne2 Bfe7 Qg8 Bh7 Rg6 Re1 a1B Kb1 Qg7 Rc1 Qe5 Bg8 Qg3 Nd3 Bc3 Ndb2 Bd2 Re1 Bc1 Qa2 Nf4 Ree3 Rg7 Rec3 Ne2 Bf8 Ke8 Ra8 Rb7 Ra7 Kd7 Nf7 Qa6 c6+ Ke6 c7 Qc6 Ba3 Rb8 Bfd6 Rb6 Rc5 Rb4 c8Q+ Qd7 Qa8 Qe8 Rf5 Qc6 Nce5 Kd5 Rd7 Ke4 Nd8 Rb8 Nec4 Rb4 Rc5 Ne5 Nd3 Kf3 Ndb2+ Kg2 Qa6 Kg1 Qb5 Kg2 Qa4 Kf1 Rb5 Nf3
4R1nB/b3Q1Q1/Kb1b1NRq/n3Q1NB/6RR/bN1p4/1p2B1b1/Bk2N3 w - - 0 1 legal: proof: c4 b5 g4 a5 e4 f5 exf5 c5 b4 h5 gxh5 g5 bxa5 b4 Na3 Na6 Nb1 Rb8 d3 Rb5 cxb5 c4 d4 Nb8 Kd2 Rh6 Ke2 Rc6 Ke1 Rc5 dxc5 Bh6 Qa4 Bg7 Qd1 Bf8 Kd2 Kf7 a4 Kf6 h4 Ke5 f4+ Ke4 h6 e5 h5 d5 c6 d4 a6 d3 f6 g4 c7 b3 Kc3 g3 b6 g2 f5 Bd6 a5 Be7 a7 Bd7 c8R Be6 a8R Qf8 f7 Qe8 f8Q Qc6 a6 Bh4 Kb4 c3 Ka5 c2 f6 Ne7 b7 Bf2 a7 Bg3 h7 Nd5 h8Q Bf5 h6 Bg6 f7 Nd7 b8N Bf4 h7 Kd4 Qe2 Qc4 Ra4 Nc3 Re8 Nc5 Qfg7 N3e4 f8N Nf6 Nd2 Kc3 Ne6 e4 Rh4 e3 Ng5 Be4 Nd7 Bd6 N1f3 g1B Ne1 Qe6 Qe7 Bd5 Qhg7 Bg2 h8B Nb7+ Ka6 Na5 Rag4 Bf2 Ba3 c1B Rab8 Bg1 a8B Bb2 Bc5 Ba3 Bf3 Kb2 Rb6 Kc1 Rc6 Ng8 Nf6 Kb2 Bd4+ Ka2 Nde4+ Kb1 Ba1 b2 Nc5 Bf2 Nb3 Bg1 Qd2 e2 Qc3 Ba7 Qe5 Bb6 Ra4 Ba7 Bh5 Qh3 Rag4 Qe3 Nef3 e1B Be2 Bf2 Ne1 Qf4 Rd8 Bfb6 Re8 Bdc5 Nd7 Qf8 Rg6 Bcb4 Nf6 Bd6 Qgf7 Qg7 Qff8 Qh7 Qfg7 Qh6
5B2/p4N2/p7/Q1R1nr1B/p1Rr1rNK/nQ1QQ1N1/5N1B/kqr1RB2 w - - 0 1 illegal: Other
3n1RN1/n1B1N1pR/NK2p2N/2pRQ2q/k7/2r1B1Q1/pq1Q2B1/R5Qb w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 Qd7 a4 Qd6 axb5 Qd8 e4 Kd7 d4 h5 gxh5 Ba6 d6 Ke6 d7 Bc8 d5+ Kd6 f4 a5 f5 e6 f6 Be7 fxe7 Ke5 Qa4 Ra6 Qd1 Rc6 d6 Rc5 Bg2 Rd5 exd5 Kf5 Bf1 Kf6 Kf2 Ke5 Ke3 f5 e8N c6 h4 a4 b4 a3 b6 a2 b5 Ba6 b7 Ne7 h6 Rg8 h5 Nc8 b6 Bc4 h7 Rf8 h8R Qh4 d8B Bd3 h6 Qh5 h7 Bb5 d7 Na7 d6 Rg8 Bc7 Qh2 d8Q Qc2 Nf6 Qc4 Nh3 Qb3+ Nc3 Nd7 b8N Qa3 b7 Rf8 Na6 Qa4 b8Q Nc5 Ng8 Nc8 Nd5 Nb7 Ng5 Rf7 Nde7 Qc2 Bg2 Qb2 Qg1 Na7 Rh5 Be2 Rh2 Bf3 d7+ Nd6 Kd3 f4 Be3 c5 Rh5 Bd5 Qf8 f3 d8Q f2 Qfe8 Rf8 Qg6 Rf3 Qd7 Qb1+ Kc3 Qf5 Nf7+ Ke4 Qb2 f1Q Qg3 Qb5 Nfh6 Nf7 Qe2 Bc6 Qdd2 Qb2+ Kc4 Nd8 Qee1 Qg4 Rd5 Bb7 Qed1 Qh5 Qb3 Nac6 Kb5 Na7+ Kb6 Ba8 Bd4 Bc6 Qbb4 Bb7 Qdg5 Kd3 Be3+ Kc2 Q5e5 Qa3 Qd2+ Kb3 Nf6 Ka4 Rf8 Bc6 h8R Ba8 Rh7 Bc6 Bg5 Rc3 Nfg8 Qc1 Be3 Qc2 Rd6 Be4 Rd5 Bf3 Bf1 Bh1 Bg2 Qb2+
Q5bB/BN2q1b1/qN3bBN/Nn1R2r1/4B1r1/1K1R1R2/2QQ3Q/k1q3rn w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 a5 f4 c5 d4 e5 Kd2 h5 Kc2 h4 f6 c4 d6 Ke6 g6 Kd5 f5 a4 f7 e4 b6 c3 g5 a3 b5 a2 f6 e3 g7 e2 g6 Kc4 d5 h3 b7 h2 b6 Ra3 d7 Rb3 d6 Qe7 d8Q Qe3 d7 Kb4 Nd2 e1R Nh3 Bd6 f8Q Qe2 f7 Na6 b8B Ra3 b7 Rh4 Ba7 Rf4 b8Q+ Qb5 Nc4 Ree4 Bb2 Re1 Bg2 Qb6 Na5 Ne7 g8N Rg1 g7 Be5 Nh6 Rg4 g8B Nc7 Bh7 Nb5 Nf4 Bg7 Bge4 Qa6 Bhg6 Bf6 Qh8 Nf5 f8R Ng3 Nd5+ Ka4 Rc1 a1B Qa8 Rb3 Qd2 Rb4 Qh7 Rg5 Qc7 Bg7 d8N Be6 Re1 Bg8 Rf3 Rd4 Nb6+ Kb4 Bd3 Rdg4 Re5 Bf6 Bde4 Bg7 Bc1 Bb2 Qh8 Ka3 Rd5 Ka2 Ndb7 Ka1 Kb3 c2 Qc5 Bbf6 Bb2+ Kb1 Rd3 c1Q Qcf2 Qc7 Bc3 Qe7 Qh7 Rc1 Rf1 h1Q Qh2 Qg1 Rff3 Nh1 Bb4 Ka1 Bd6 Bb2 Be5 Qgc5 Bc3 Rcg1 Bd4 Qc1 Bf6 Bf8 Bg7 Bf6 Bh8 Qd6 Qc7 Qe7 Qcc2 B8g7
R1q1b2R/3b1N2/2Q1Rb1B/3n1Q2/N2B2Br/K1qN2kr/1Q5n/B2n1QNr w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kf7 Kd2 h5 Kc2 e5 Kb3 c5 f4 a5 g4 e4 d6 c4+ Ka3 h4 b4 h3 b6 c3 g6+ Kf6 b7 c2 g7 h2 g5+ Kf7 d7 a4 d5 e3 d6 e2 f6 Kg6 f7 Kh5 f5 Kg4 g6 Qa5 d8B Ra6 f6 Kh4 d7 e1R Be2 Qg5 Nc3 Ne7 g8R Rh5 g7 Qg6 b5 Re6 b6 Qh7 Bg4 R6e2 Bb2 c1Q Rh8 Qe3 g8Q Nbc6 b8N Qc2 b7 Ne5 Bb6 Kg3 d8N Rh4 Bd4 Bd7 Na6 Bg7 f8Q Nd5 f7 Bf6 Qg6 Nf3 b8Q+ Qe5 Qfd6 Re3 Qc6 Qc7 Qbb6 Qc8 f8B Qc1 Nf7 Be8 Ka2 a3 Na4 Qc3 Qf5 Rd3 Bh6 Bd7 Nh3 Be8 Rf1 h1B N6c5 Nh2 Ng1 Bg2 Rf2 Bh3 Re2 Rf1 Re6 Re3 Nf3 Rh1 Ng1 Rf3 Qbb3 Re3 Qdf1 Rd3 Qc2 Rf3 Kb1 a2+ Kc1 Re3 Nd3 Rf3 Rb1 Re3 Ba1 Rf3 Rb8 Re3 Bb2 a1N Ra8 Rf3 Kb1 Re3 Qcc1 Nc2 Ka2 Rf3 Qd2 Nce3 Ba1 Nd1 Qb2 Re3 Be2 Bg4 Bf3 Bh5 Bg4 Bd7 Nd6 Bhe8 Nf7 Rh3 Re5 Re4 Re6 Qd2 Ka3 Rf4 Bh5 Rfh4 Bg4 Qc3+
RB5q/n1Q1B1R1/b4NN1/1qr5/1rBQ1Nn1/q5R1/Rbk1q2Q/B4KQq w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 d4 Kd6 h4 c5 b4 e5 b6 g5 f6 a5 b5 g4 h6 a4 b7 a3 b6 c4 f5 a2 f7 g3 h5 c3 h7 c2 h6 e4 f6 e3 Bc4 e2 Nd2 g2 Rh3 Nd7 b8R Qe8 b7 Ra7 Ba3+ Nc5 Ra8 c1Q b8B+ Rc7 Rg3 Be6 Nh3 Qd8 Nf4 Be7 f8N Qd7 f7 Nf6 N8g6 Qb5 f8R Bc8 Rg8 Ba6 Rg7 Ng4 Bb4 Rd8 h8B Bf6 h7 Qa3 Qb1 Ne5 Kf2 Nc6 Qf1 Na7 Qg1 Qaa4 Ba3 Qab4 Ke1 Nd7 Kf2 Rf8 Ke1 Rf7 Kf2 Ne5 Ne4+ Kd7 d6 Kc6 d7 Ng4+ Kf3 e1Q d8Q Kb6 d5+ Ka5 d6 Ka4 d7 Bb2 Nf6 Rc5 Qc7 Re7 d8Q Re4 Qdd4 Qb3+ Qge3 g1Q Bb4 Qh2 Ba3 Qh5 Kg2 Qe2+ Kg1 Qh4 Bb4 Qa3 Qf2 Qd2 Kf1 Qh1+ Qg1 Qc2 Bd3 Kb3 Be2+ Rc3 Be7 Qd2 Bc4+ Kc2 Rb1 a1Q Re1 Q1a2 Ra1 Q2b3 Ra2 Qe8 Rf7 Qbb5 Bg7 Qf8 h8Q Qc8 Qh2 Qh8 Be2 Rc5 Bc4 Re3 Qg2 Rb3 Qh2 Qd8 Bh8 Rb4 Rg7 Qf8 Qd5 Kd1 N6h5 Bc1 Rh7 Qc8 Ba1 Bb2 Nf6 Kc2 Qd4 Qh8 Rg7 Qe2+
1b1qR1B1/3r4/Q1Q5/KnBR1n1k/b1Rn1q2/3nBr2/n1QQNR1N/3N3N w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 a5 d4 c5 Kd2 e5 Kc3 g5 f4 g4 b6 c4 d6 e4 b5 g3 b7 a4 Kb4 e3 d5 g2 h6 a3 f6 Kg6 h5+ Kf5 f7 e2 b6 Kg4 f5 c3 f6 a2 h7 c2 h6 Qe7 Nf3 e1N Rh4+ Kf5 Nh2 Kg6 Be3 g1N Bc4 c1Q Nc3 Ngf3 Qc2+ Qe4 Nd1 Be7 f8Q Nd2 f7 Ng2 Qe8 Qf5 f8B+ Kf6 Qc6 Na6+ Ka5 Kg6 b8N Nf3 d7+ Nf6 d8Q Ne5 b7 Qe4 d6 Be6 d7 Ba3 Bfc5 Rf8 h8Q Qd3 h7 Nc7+ Na6 Nfd5 b8N Nb5 Rb1 a1N Rb2 Rf7 Ba2 Re7 Rc4 Kh5 Qf6 Ndc3 h8R+ Rh7 Rf8 Nh4 Re8 Nf5 Bb3 Ra7 Ba2 Rc7 Nb4 Rf7 Qa6 Qd5 N8c6 Nd3 Nd4 Qd2 Bb3 Na2 Ne2 Qe4 Qfc3 Qf4 Qda8 Bd5 d8R Bc6 Rd5 Rcd7 Qd4 Qe1 Qdc3 Qeh4 Q3d2 Qhg5 Q8b7 Qd8+ Qc7 Nd4 Qcb6 Ba4 Qc7 Nb5 Qcb6 Ndc1 Nd3 Rf8 N3f2 Nd3 Nh1 Rff7 Bcd4 Bd6 Bc5 Bb8 Qc7 Rg7 Qcb6 Rg3 Qc7 Rf3 Qcb6 Qf6 Qc6 Qd8+ Bb6 Na3 Rb1 Rf7 Rc3 Qg3 Rde5 Bb5 Ndf2 Qg4 Rf1 Rh7 Bg8 Rd7 Rc4 Ba4 Nd1 Nb5 Rd5 Qd4 Rf2 Qf4 Qb2 Nc2 Qb1 Ncd4 Qbc2 Rc7 Bc5 Rd7+
5rQ1/2b2R2/BRrk2bK/2n3r1/1N4NR/B4qqR/1QNq2nB/NqB2Q2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 a5 Kf4 c5 Kg5 e5+ f6 e4 d4 c4 h4 g6 f4 a4 b4 c3 b6 a3 f5 e3 h6 c2 h7 e2 b7 e1Q d6 a2 d5 Qee8 h5 Ra6 h6 Qc7 f7 Qe7+ f6 Qc6 b5 Qc3 b6 Qe6 Nf3 Ne7 Rh4 Qc6 Nh2 Qc7 Nd2 Qe1 Ng4 Qd8 Nb3 Ra4 Ba6 Qe2 Qf1 Rg8 h8Q Ra3 h7 Nf5 Rb1 Qh2 Na1 Rg7 Qg8 Qe2 h8R Ne3 Kh6 g5 Rb4 Be7 f8R Ng2 f7 Rf3 Rh3 Rf2 Rb1 Qf3 Rh4 Nc6 b8B Ne5 b7 Nd3 Rb6 Nc5 Bc7 Bf6 b8Q Bd4 Re8 Bb2 f8B Be5 Re6 Bb7 Rf6 Bc6 Qb7 Bb5 Be7 Bd3 Rf7 Bh2 Rb1 Be4 Qb2 Bg6 Bb8 Qa5 Rh3 Qd2 Bf8+ Kd8 d7 Bc7 Rh7 Bb6 Bh2 Bc7 Nb3 a1R Rh8 Ra4 Na1 Rf4 Rh4 Rf6 Rh3 Rc6 Rh7 Be5 Be7+ Kc7 d8N Kd7 Ne6 Bb8 d6 Bc7 Ne3 g4 Nd4 g3 Rh4 Nf4 Ng4 g2 Rh8 g1Q Bf8+ Kd8 d7 Qgg3 Rh7 Bd6 Be7+ Kc7 d8N Kd7 Rh8 Bc7 Rh7 Rf6 N8c6 Ng2+ Ne3 Rd6 Nb4 Rc6 Rh3 Qe1 Ng4 Qec3 Be3 c1Q Ndc2 Q1e1 Bc1 Qcd2+ Bg5+ Kd6 Rh4 Qde2 Be7+ Kd7 Na2 Qee3+ Rf4 Nb3 Rh3 Bd6 Qd4 Qfe2 Bd2 Rf7 Kg5 Rf8 R7h4 Qb5+ Qe5 Bc7 Ba3 Nc5 Bdc1 Q1d2 Kh6 Rf3 Qc3 Kd6 Rb4 Qef2 Qcb3 Re3 Rf7 Qf3 Qb1 Qdd3 Rb2 Re5 Rb3 Rg5 Rb4 Qbc4 Rb6 Qcb3 Nab4 Qd2 Qa2 Qb1 Qb3 Nb7 Qb2 Nc5
B1n4N/2r1R2n/1k3r2/1B2n1QQ/6RN/qKN1nQR1/NbQ3pB/3r1bB1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 e4 c5 d4 Kc7 Kd2 f5 Kc2 g5 b6+ Kb7 d6 f4 d7 f3 e6 c4 h6 f2 b5 c3 e5 g4 e7 g3 e8R g2 h7 a4 h5 a3 d5 a2 d6 Nf6 h6 Ra5 e6 Ra4 e7 Ra5 Be3 Ng4 Rh4 Ra3 Nf3 Ne5 Rg4 Qc7 d8Q Bg7 d7 Rf8 h8Q Ra4 h7 Na6 Nh4 Rf6 Qf3+ Nc6 Kb3 c2 Nc3 Qe5 Qc7+ Ka8 d8Q Qc5 b7+ Ka7 b8N+ Bb7 Bd3 f1N Be4 Nab4 Bg1 Nd5 Na6 Rc4 Nb4 Nfe3 Rb1 a1R Nba2 Qd6 b6+ Ka6 Re1 Na7 Rg8 Rd1 e8B Nc8 Bb5+ Ka5 Qc5 Ba6 Qe7 Qg3 b7 Qh3 b8B c1N+ Ka3 Nd3 Bbh2 Ne5 Kb3 Nd6 Qc8 Kb6 Qcf5 Rc7 Rg3 Bf8 R8g4 Bg7 Qhe8 Nc8 h8N Rfc6 Q8f7 Nf6 Q7h5 Nh7 Qeg5 Rh6 Ba8 Rf6 Be8 Bf1 Bb5 Bf8 Qc2 Ba3 Re2 Bb2 Rd2 Rb1 Rd7 Rc1 Re7 Rd1 Rd4 Qd7 Re4 Qd6 Reg4 Qa3#
r4r2/N1B1Q3/b1K3B1/4QN2/Nb2B3/bb1R2nQ/Rnkp1QB1/RRq4n w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 e5 Ke4 h5 Kd5 a5 b4 d6 g4 h4 f4 h3 c4 a4 b6 e4 g6+ Kf6 g7 a3 b5 h2 c6 e3 c5 a2 b7 e2 g5+ Ke7 b6 e1B f6+ Kf7 f5 Bd7 c7 Qc8 g6+ Ke8 f7+ Ke7 c6 Kf6 Bf4 Qd8 c8R Ra4 c7 Ba5 Qh5 Bd2 Qh3 Be1 Nf3 Bb4 Bg2 Bb5 Nd4 Ra8 Rd1 h1B Rd3 Na6 b8Q Nc5 b7 Ba6 Nc3 Ne4 Na4 Ng3 Kc6 Nh6 g8B d5 g7 Ng4 Bh7 Nf2 g8B Qe7 Bd6 Qe1 Bg6 Be7 B8h7 Rf8 Bf4 Ba3 Rd8 Beb4 c8N Qd1 Na7 Qc1+ Nc2 d4 Bc7 Kg5 Rd6 Kf4 f6 Ke5 B6e4 Kf4 Bhg6 Ke5 Rd2 d3 Re2 Qd1 Nd4 Qc1+ Rc2 d2 Qe8+ Kf4 b8R Ke3 Nf5+ Ke2 Rd3 Kd1 Bf1 Bf3 Bg2 Nfh1 Qe5 Be2 Rb6 Bc4 Rb2 Bf1 Rbb1 Kc2 Ra6 Bb3 Ra5 Rfc8 f8Q Be2 Qfe7 Rf8 f7 Bf1 Rd4+ Bd3 Bef3 Ba6 Rd3 Qb2 Rd1 Qc1 Rb1 a1N Be4 Be6 Rf1 Nb3 Rd1 Nc5 Rf1 Rfc8 f8Q Bb3 Qff7 Rf8 Ra1 Qb2 Rfb1 Qc1 Qff6 Nb7 Qfh4 Nd6 Qhf4 Nc4 Qf2 Bd6 Nc3 Bab4 R5a2+ Nb2 Na4 Bdc5 Qh2 Ba3 Qh3 Bcb4
R3KN2/3nBB2/Qr2n1B1/RQ2nB1Q/4p1rb/3Nqb2/2Rr3k/NNQ3n1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 Kg5 e5 f4 a3 g7 e4 Kg6 h4 Kf7 a2 g5 h3 b7 h2 f5 Bd7 g6 Nc6 b8Q+ Qc7 b6 Nge7 g8B Rh7+ g7 Ra7 b7 Ra4 Ba3+ Rb4 Nh3 c1N Qc8 Be6+ Ke8 Nd8 b8Q Nf7 Qa6+ Nc6 Qh5 Ng5 f7 Ne2 f6 Nf4 Nf2 Nfh3 Nd3 Be7 f8Q Nf4 f7 Ne2 Qbb5 Rh6 Bh7 Bh3 g8B Re6 Qfh6 Qb7 f8N Bg4 Bf7 Bf3 Bh3 Qb6 Rc1 h1R Rc2 Rd1 Bhg6 Rd2 Bg4 Re5 B4f5 Ne6 Qe3 Ng1 Qe1 Kc7 Qc1 Rb2 Bc5 Bh4 Be7 Rb4 Bh3 Rg5 Bhf5 Rg4 d6+ Kb8 d7 Kc7 d5 Qe3 d8R Rb3 Nc5 Ne5 Ra8 Rb2 Qba4 Rb7 Q4b5 Rb6 Nb3+ Rc6 Bg5 Kd6 Bf6 Rb6 Bg5 Nc6 Be7+ Ke5 d6+ Kf4 d7 Kg3 d8N Ne5 Nb7 Kh3 N7c5 Kh2 Na3 Nc6 Nd3 Ne5 Rb1 a1N Rbb2 Nc5 Nb1 Ncd7 Rc5 Nc2 Na1 Nd4 Rcc2 Qe1 Ra2 Ne6 Ra5 Qe3
2bR3R/N3RqbQ/Q4b1N/n4rr1/n2Q4/3qp1Bk/2bRQ2B/1N1NK2B w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 e5 d4 a5 g6 h5 f6 e4 f5 c4 f7 c3 b6 c2 g5 h4 f6 h3 d6 Ke6 d5+ Kf5 b5 a4 g7 a3 b7 h2 g6 a2 b6 Be7 f8R Na6 b8B Bb7 d7 Rh5 d6 Rg5 f7 Rg2 Ne2 Kg4 Re8 Nb4 f8Q Ba6 b7 Qa5 d8Q Bd3 d7 Nf6 g8N Qa6 g7 Qb5 Nec3+ Kh3 Bg3 Ra5 b8N Qf5 Nc6 Nfd5 Qe2 Nb6 Na7 Bf6 Bcf4 c1Q+ Nd1 e3 Qd6 Bc2 Re7 Na4 Nh6 Qd3 g8Q Rf5 Qa6 Nc6 Qh7 Na5 Qdb6 Qb2 d8R Qbb3 Qd4 Bg7 Na3 Qg8 Rc1 a1B Nb1 Qf7 Bb8 Bb3 Rc2 Bb2 Rd2 Bc2 Qf2 Ba1 Be2 Bc3 Bf3 Bf6 Qe2 Bb2 Rg1 h1B Bh2 Rg6 Bbg3 Rgg5 Bd5 Bf3 Rh1 Bg4 Qg8 Ba3 Qe5 Rf4 Nf5 Bg7 Ba8 Bf3 Bg1+ Kg4 Rh8 Bb2 Nh6+ Kh3 B1h2 Bg4 Bh1 Bc8 Qh7 Rff5 Qd5 Bbe5 Qd4 Bef6
b1kb3N/R2bRqQ1/nn1p2rB/Kr2RB1b/NNq3Q1/1BQ5/Q5R1/4N3 w - - 0 1 illegal: No possible last move
QNBb4/1q1Q4/7b/2k2pNr/3qBnbp/N1N1BR1r/K1nB4/3QR1RR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Ke7 d4 a5 Kd2 c5 Kc2 f5 Kb3 h5 e4 a4+ Ka2 c4 b4 h4 b6 a3 e6 Kd6 b7 c3 e7 c2 e8Q Nd7 b8B+ Qc7 g6 Be7 g7 Bf6 g5 Be5 g6 Bg3 b5 Be5 b6 Ba6 b7 Rh6 Bg2 Ra7 Bd2 c1Q Ne2 Qc5 Nec3 Ne7 g8R Qb4 g7 Ra8 Ba7 Be2 b8N Qbb6 Rf1 Bf6 Rf3 Qcc6 e5+ Kc7 e6 Bf1 d6+ Kb7 d5 Ne5 d7 Ba6 d8Q Nc4 d6 Nd5 d7 Nf4 e7 Qd4 Qf8 Qb5 e8R Rh5 Re1 Ne3 Qde7 Kc7 d8N+ Qbd7 Qfe8 Be2 Nf7 Nc2 Ng5 Kb7 Q7f7 Bd8 Bc5 Ra6 Qd5+ Kc7 Qa8 Ra5 Ba7 Kd6 Bh1 Qb7 Qf7 Qf6 Bae3 Qd4 Qd7+ Kc5 Bg2 Rb5 Rh1 Rb3 Re8 Bb6 g8B Bc7 Be6 Bd8 Rf2 Bg4 Be4 Be7 Rf3 Bf6 Nb5 Rd3 N1c3 Bd8 Kb3 a2 Rg1 Qa7 Na3 Qa6 Rc1 a1B Ka2 Qb5 Qda7+ Qb6 Bc8 Bb2 Qd7 Qb7 Qe2 Ba1 Rcf1 Bb2 Qd1 Bc1 Re6 Qb5 Rh1 Qb7 Rfg1 Qa7 Bf2 Re3 Beb7 Re2 Nh7 Nd5 Bde1 Bcg5 Bd2 Bh6 Ng5 Nf4 Ree3 Qb6 Be4 Qa7 Bg3 Rh2 Ree1 Rh3 Bf2 Qa6 Bfe3 Qb7
N1N1Bkb1/1BB1R3/3N1KqR/n4N2/2pr2pQ/Bq3Qb1/n3Q2p/R2Qr3 w - - 0 1 illegal: No proof kernel
R2BR3/R1NN1b2/2knr3/2qb2Rr/1RN4q/2Bnr1q1/3BKR1N/b2Q3B w - - 0 1 illegal: No possible last move
1nK4B/1RNR3N/2R3bb/8/1rbQnNBb/N4n2/NR1rB2k/3r1qNB w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 b7 h4 g5 a3 f7 h3 b6 a2 g7 h2 g6 Ra5 Na3 Nd7 b8R e5+ Kf5 e4 f4 e3 b7 e2 Bb2 e1R Rc1 a1N Be2 Be7 f8N Ra6 Ne6 Nb3 Nc7 Ngf6 g8B Nb6+ Be6 Ra7 g7 Qe8 g8B Bf8 Rb1 Ke7 d6+ Kd8 d5 c1B d7 Ke7 d8R Nh7 Qd4 Bh6 d6+ Kf8 d7 Ke7 Bd5 Kd6 Bge6 Rd1 Bc3 Ra5 Rb2 Ng5 Kf6 Rc5 B6g4 Nd2 f5 Qh5 Bg2+ Rd5 Bg2f3 Qh3 Bg2 Kc6 Ke7 Ndf3 f6 Ne4 f7 Bcg5+ Ke6 Rb5 f8N Rb4 Nh7 Be7 Rf8 Bh4 Rf6 Rg8 Rf7 Rg5 Ke7 Rf5+ Ke8 Rd5 d8N+ Kd6 Nde6 Rd2 Nf4 Bf5 Re7 Be6 Kd8 Nd7 Rc8 Bf5 b8N Bg6 Nc6 Rd1 Rb8 Rd2 Rb7 Nb8 Kc8 Rd1 Qb6 R5d3 Bh8 R3d2 Bgf1 Qg2 Qe3 Qf2 Bg2 Qf1 Rg7 Rc4 Nb4 Ke5 Na2 Rcd4 Ngh3 Rb4 Rg1 h1B Qb6 Qf2 Re1 Qf1 Ng1 Rb1 Rc1 Ra1 Rc6 Rad1 B2h3 Bg2 Be6 Bh1 Bd5 Bg2 Bg4 Bh3 Bd7 Be6 Qd4+ Kf5 Re7 Kg4 Rg7 Kg3 Rf7 Bh3 Bg4 Kh2 Re7 Bg2 Rd7 Bh3 Bh5 Be6 Bg4 Nc5 Be4 Bc4 Bd5 Ne1 Bg2 Nf3 Bh1 Ne4
NRb2R2/N7/3NrB1n/B1q5/2Q1RBn1/nKb4B/R1r1Nq2/nkN1qN2 w - - 0 1 illegal: No possible last move
2b2R2/4B1R1/Rb4p1/1nNn2Nk/n1r1N3/NB2Qq2/2R1B1Br/qB2b1BK w - - 0 1 illegal: No possible last move
5bR1/p2Q2r1/2bRNk2/BN4b1/1r2Bn2/KbR2R2/q2n2N1/B1RrNR1B w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 f4 e5 b4 c5 d4 h5 Kd2 h4 Kc2 e4 Kb3 h3 b6 c4+ Ka3 h2 f6 c3 g6+ Ke8 f7+ Ke7 b7 c2 b5 e3 f5 e2 b6 e1B g5 Bg3 f6+ Kd7+ d6 Ke6 g7 Nd7 b8R Rh6 g6 Bf2 b7 Be1 d5+ Ke5 Bd2 c1R Nc3 Rc2 Nb5 Rc1 Bd3 Qc7 Ba5 Nc5 d7 Bd2 d8N Rc4 d6 Be1 d7 Rch4 Nf3+ Kf4 Rc1 Qd6 Be4 Qc7 Rf1 h1B Ne6+ Kg4 d8R Qc6 Qd7 Rh7 Nf4+ Qe6 Ng2 Bd2 Nfe1 Ne7 g8B Kg5 g7 Ng6 Rc3 Be7 f8N Nf4 f7 Kf6 Rff3 Qd5 Ne6 Bf8 Rc1 Rg4 Rf1 Rhh4 Bgh7 Qc4 g8R Rg7 Bf3 Be3 Bhe4 Rhg4 Qd3 Rh4 Rd6 Nb3 Qd1 Bd7 Rc8 Bc6 b8B Nd2 Qa4 Bd5 Rc5 Qc2 Rc3 Bb3 Bbc7 Rb8 Bcb6 Rh5 Bd4+ Re5 Rc8 Rb6 Ba1 Rb7 Rc3 Rd5 Nbc7 Rb4 Qd7 Nh3 Nb5 Bg5 Bg6 Rdd4 Bb7+ Nf4 Bge4 Nf3 Bbc6 Rd1 Bcd5 Nd2 Bc6 Be7 f8R+ Rf7 Bf3 Nh5 Ne3 Ke5 Rb8 Rg7 Rbf8 Bg2 Rf4 Bf8 Bfd5 Qb1 R4f2 Nf4 Bb7 Bh3 Bh1 Kf6 Bbf3 Bf5 N3g2 Qc2 Bd5 Be4 Rff3 Qb1 Bc4 Qc2 Bd3 Bc6 Be4 Qa2+
2nnn1NK/1QR1Bq2/2N5/prRNrkbb/8/1B2B3/1RNB3n/R1N3qN w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 g5 d4 e5 f4 c5 h4 a5 b4 c4 h6 c3 b6 c2 h7 g4 d6 g3 d7 g2 d5 Ra6 h5 Bd6 h6 Ra7 b5 Na6 b7 Be7 b8B Qb6 d8R Rc7 d6 Rd7 Na3 Bf8 Qf3 Rc7 d7 Ra7 Nh3 g1N Be3 c1Q Nc2 Rc7 Nf2 Bc5 Bc4 Qd2 Bb3 Bd6 Rh5 Qd1 Nh1 Qc5 b6 Rc6 b7 Nh3 Bd2 Qdg1 Ba7 Qg7 b8R Qb5 Bae3 Bb7 Rdc8 Qg2 d8N Bc5 Rc7 Re6+ Nc6 Be7 Rg5 Kf7 f6 Nf2+ Kf5 Ba8 Rb6 Kf8 Kg6 e4 f5 Re5 f7 Qc4 Rb5 Qg1 Rc5 Bd6 Rg2 Ne7+ Kf6 Rg8 h8N Rg5 h7 Nc8 N6d4 Nb4 Bc3 Rg4 Na3 Qd5 Bf4 e3 Ne2 Re4 Nc1 e2 Be3 e1N Rh2 Nd1 Rb2 Rgf4 Nc2 Re8 Bcd2 Nc6 Qe4 Nd8 Qb4 Bc6 Qb7 Qh2 Kg6 Rb4 Kf6 Bd7 Kg6 Ke7 Kg7 Qf3 f8N Rb5 Ne6 Nf2 Nf4 Ng4 Nf7 Qg1 h8N Qff1 Ne5 Nf3 Kh7 Kf6 Nhf7 Nfh2 Nc6 Be7 Nh6 Kg5 Ng8 Nf6+ Kh8 Be6 Qb8 Bf7 Qb7 Bh5 Nd5+ Kg4 Nf4 Nh7 Nd5 Bg5 f6 Re5 f7 Nf6 f8B Ne8 Bd6 Qf7 Be7 Kf5
2N1R2N/3kq3/n3N3/np4Br/nr1B4/KR2r1Bb/pb2Q2N/R2NRB1N w - - 0 1 illegal: No proof kernel
2Q1b2N/1B2bBB1/1RB1R2b/kBr2nbr/r4R2/2np1BB1/5B1R/K2N3q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 a5 Kc3 h5 g4 e5 f4 d5 b4 Kd7 Kb2 Kc7 c4 a4 b6+ Kb7 g6 Ka6 c6 d4 g5 e4 c7 e3 g7 h4 c5+ e2 f6 h3 b7 h2 f5 Ra7 g6 Be7 f7 Bg5 f8R Be6 c8B Nd7 b8B+ Kb5 c6 Bf6 c7 Qe7 Qc2 Qd8 Nf3 Bh4 f6 Bh3 f7 Ra6 Ng5 Rd6 Nc3+ Kb6 b5 e1B Nd1 Nh6 g8B Ne5 g7 Rg6 Bb7 Bg2 c8B Bb4 Bd7 Ka5 b6 Neg4 Be3 Rc6 Bg3 Nf2 Bb5 Rc5 Bdc6 Ne4 Bef2 d3 Re8 Nc3 f8B Qe7 Bf7 Qe4 g8B Nf5 Re6 Rh5 Bg7 Qd5 Rb1 a3+ Ka1 a2 Rf1 Bh3 Rb2 Qh1 Bf3 Ba3 Bfe8 Bg2 Nf7 Bg5 Nh8 Rh4 Bec6 Ra4 Bf7 Bb4 Be2 Bf3 Qc1 Bh5 Bef3 Bh6 B7a6 Bg6 b7 Bh5 b8R Bg5 Bg8 Be8 Rb6 Ba3 Rbe2 Bh6 Qc2 Bac1 Bc8 Bcg5 B8b7 Be7 Bf7 Bhg5 Kb2 a1B+ Kb3 Bd2 Bg1 Na2 Bfd5 Bh6 Bd7 Rc8 Rf4 Baf6 Bf3 Bfg5 Kb2 Qg2 Ka1 h1R Qc7 Rh5 Qc1 Qh1 Rh2 Rc5 B1f2 Re5 Qc8 Rc5 Bdc6 Nc3+
1BbNK1Nr/1B2N3/2B1q3/3Nn2N/2Rp1Nrp/QpB1rn2/N1kb4/1N3R2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Kc3 b5 Kd4 d5 Ke5 h5 c4 e6 a4 d4 g4 b4 f4 h4 f6 Kg6 f7 b3 c6 Nh6 f5+ Kh7 c5 Qd7 Kf6 e5 a6 e4 a7 e3 a5 e2 a6 e1R c7 Re5 c6 Bc5 f8N+ Kg8 g6 Bd6 g5 Ba3 g7 Bc5 Bg2 Re8 Ne2 Rh7 Nf4 Bb6 Bb2 Qd6+ N8e6 Qd5 Ra4 Qf3 Rf1 Ba5 Bc3 Qg3 Qc1 Rd8 Ke7 Qh2 f6 Rf8 Rc4 Rh8 f7+ Kh7 g8N Nd7 Qa3 Ne5 Nd8 Bb6 g6+ Kg7 Nf6 Bh3 c8N Qh1 c7 Rb8 a8N Ba5 a7 Nd7 Nab6 Rhg8 a8B Ng4 Nbd5 Nh2 Nd6 Ne5 c8N Nhf3 Bc6 Qg1 Bb7 Qe3 N6h5+ Kh6 g7 Kg5 Nb5 Kf5 Bc6 Ke4 Bh1 Rh8 g8N Rb6 Bb7 Rg6 Bc6 Rg4 Bg2 Nd3 Kd7 Bb4 Nce7 Re8 f8B Ba5 Bg7 Qe1 Be5 Qe2 Bb2 Bd2 Bc3 Qe3 Bb8 Qe1 Nf5 Re6 Nfe7 Ne5+ Ke8 Qe3 Ng6 Kd3 Ngf4+ Kc2 Nbc7 Ng6 Na6 Qe1 Bb7 Re3 Bh1 Nge5 Nab4+ Kd1 Na2 Kc2 Ndf6 Rg2 N6d5 Bc8 Nb6 Rg4 Bg2 Ng1 Bgc6 Ngf3 Nbd5 Qe2 Rb4 Qa6 Rc4 Qb6 Bd7 Qd6 Bdc6 Qe6
3B1R2/B1N1Rp1Q/QQ3N2/2qN4/B2k3K/2nPrbr1/1nb2QQ1/4R1r1 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b4 a5 bxa5 g5 hxg5 Qe7 b6 Qd8 b7 Be7 Qb3 Bc5 Qd1 Bb6 axb6 Ra2 Rh3 Ra3 Rh1 Ra8 Kf2 Ke7 Kg3 c5 e4 h5 e6 Kd6 g6 Ke5 g7 c4 d6 c3 d7 c2 e7 Ra7 e8Q+ Kd4 e5 Rh6 e6 Na6 b8Q Nb4 b7 Ra5 e7 Ra4 Qe1 Qb6 d8B Qa6 Qc6 Rh8 e8N Qa7 Bb5 Qa5 d3 Qc7+ Kh4 Qd7 g4 Rh7 g5 Qc7 g6 Na2 Ne2+ Ke5+ Nf4+ Re4 Qa6 Ne7 g8Q Re3 g7 Kd4 Na3 Nd5 Qf2 Bg4 Re1 Qc5 Ba4 Nb6 Nf6 Bd1 N4d5 Nc3 Bb2 Rh8 Qh7 c1R g8Q Bc2 Qgg2 Rg8 Qba7 Nc4 b8R Rg6 Q7b6 Rg3 Re2 Rf1 Rae1 Rg1 Ba1 Nb2 Nb5+ Ke5 Nbc7 Kd4 Rc8 Rh3+ Kg5 h4 Kg4 Rg3+ Kh5 h3 Kh4 Nbd1 Bb2 h2 Bc1 h1B Ba3 Ke5 Bb4 Qe7 Bc5 Nb2 Qba5 Nb1 Ba7 Rg5 Qh3 Qc5 Q5b6 Bf3 Qhg2 Kd4 Be7 Nc3 Rf8 Rg6 Bd8 Rg3 Qff1 Re5 Re3 Rf5 Re7 Re5 Qff2+ Re3
2K5/2N1B1r1/R1rBPN1Q/BBQq1kB1/5N1p/b1Q2r2/3n1R2/1Rr1q3 w - - 0 1 legal: proof: h4 e5 a4 b5 axb5 d5 b6 g5 hxg5 e4 c4 e3 cxd5 Qe7 b4 Qd7 fxe3 Qa4 e4 Na6 e5 Qb5 Rxa6 Bb7 Ra1 Qd7 b5 Ba6 Rxa6 Qc8 Ra1 Qd8 Kf2 Kd7 Kf3 a5 Kf4 c5 Kf5 h5 e4 h4 g4 f6 d4 c4 e6+ Ke7 e5 c3 g6 c2 b7 a4 b8R a3 g5 a2 d6+ Ke8 g7 Rh5 b6 Ra5 e7 Kd7 e8N Ra3 d5 Rh3 b7 Qb6 Qd2 Rg3 Nc7 Qa7 Ne2 Rg4 Qc3 Rh7 g6 Qa6 Nf4 Qb6 Nd2 Qa6 Ne4 Rg3 Bb5+ Qc6 Rh2 Rd3 Rf2 Rd4 Ra8 Be7 b8B Rc4 Ra6 Rd4 Rb1 Kc8 Ke6 f5 Nf6 Qb7 d7+ Kd8 Ba3 c1R Bb4 a1Q Ba5 Ba3 Qc5 Rb4 Kd6 Qa7 e6 Rbc4 Kc6 R4c2 Qc3 Qc5+ Kb7 Ke7 Kc8 Qc6 d8B+ Kd6 Qc5+ Ke5 d6+ Qd5 d7 Qc3 Be7 Qe1 d8B Rc3 N6h5 Nf6 g8Q Ne4 g7 Nd2 Qf8 Rf3 g8Q Rg7 Qh8 Rcc3 Nh3 f4 Nf6 Kf5 Qh6 Rc1 Qg8 Rfc3 Qgh8 f3 Nf4 R3c2 Nce8 Rc4 Bbd6 R4c3 Nc7 R3c2 Rg2 f2 Rh2 f1R Rf2 Rf7 Q8g7 Rg1 Qg3 Rg7 Qgc3 R1g3 Ne4 Re3 Bg5 Rf3 B8e7 Rb2 Nf6 Rb4 Be2 Rb6 Bb5 Rc6
5B2/nB1RNRQK/1r2Q2n/1N3b2/bqP2BR1/B1n5/B1r2nN1/Q1r4k w - - 0 1 illegal: No possible last move
RB3nB1/Q7/P1kqr3/p1brbnR1/RQ4Bn/1n3RKR/1Q6/1N1N3N w - - 0 1 illegal: No possible last move
1B3B2/3qPbnR/1R3Nq1/5Bbr/4R1Kb/1Q2p1B1/1n1Q1NB1/NkqQ4 w - - 0 1 legal: proof: c4 b5 d4 a5 h4 f5 a4 g5 axb5 d5 hxg5 e5 cxd5 Ra6 e4 Re6 exf5 e4 Nh3 Na6 Ng1 Re5 dxe5 Nb8 Ke2 Ke7 b4 c5 g4 h5 f4 h4 g6 h3 d6+ Kd7 b6 Kc6 d7 Kb5 b7 Kc4 g7 a4 f6 a3 b5 h2 f5 a2 g5 Rh3 b6 Rh6 e6 Rh4 g6 Nh6 g8N Ng4 g7 Be7 f7 Nf6 f8Q Nh5 f6 Rf4 f7 Rf3 Bf4 e3 Na3+ Kc3 Bg3 Kb2 Nf6 c4 g8B c3 Bg2 c2 Nh3 c1Q Bh7 Qdc7 d8Q Q7c2+ Q8d2 Rf5 Nf2 Ng7 Qg8 Rh5 Kf3 Na6 b8B Nb4 f8B Nd3 b7 Bd7 Bf5 Be8 Kg4 Bf7 Nb5 Bd8 Nd4 Be7 Nb3 Bd8 N6e4 Bh4 e7 Bg5 Nf6 Bh4 Re1 h1Q Rg1 Qh2 Rh1 Qg1 Bbc7 Qh2 b8R Bg5 Rb6 Qh3+ Kf3 Bh4 Bb8 Bg5 Be4 Qd7 Bf5 Ka3 Kg4 Nb2 Rb1 a1B Rb4 Ka2 Re4 Na4 Rh4 Bd4 Rh3 Nb2 Na1 Bh4 Rh1 Be5 Rh2 Bf4 Rh1 Bfg5 Rh2 Nc4 Rb6 Nb2 Rh3 Kb1 Rh2 Bg6 Qb3 Bf7 Rf4 Rh6 Be6 Qg6 Re4 Rh8 Bf5 Rh7 Bgc7 Bg3 Rh5 B3h4 Bg3 Rh8 Rh7 Ne6 Rg7 Rh5 Rh7 Ng7
2QrQ1R1/PR1B4/pQ3qB1/2Br2n1/3N4/KN1B1NB1/n1Rbr1q1/1k4n1 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 g3 b5 Kf7 d6 Ke8 d7+ Kf7 hxg3 Kf6 g4 Kg7 g5 Kf7 Be2 a6 Bd3 c6 Bf1 Qb6 a4 Qa7 b6 Bg7 bxa7 Bf8 Ba3 b5 Rh3 b4 Rh4 c5 Bc1 Bb7 Rh6 Bc6 Rh1 Bb5 axb5 Bg7 Bd3 Bh6 Bf1 Bf8 d8R h5 g4 e5 d4 c4 Kd2 b3 Kc3 h4 Kb2 h3 f4 h2 d5 e4 g6+ Kf6 b6 e3 g7 e2 b7 e1R g5+ Kf7 f6 Kg6 d6 Kf5 d7 Ke4 f7 Re2+ Nd2+ Kd3 g6 Rh6 f5 Rh8 f6 Bb4 f8B Rh3 f7 Rh8 Rb1 Ne7 g8B Rh5 g7 Nec6 Bh7+ Rf5 Be7 Ne5 f8Q Nbc6 g8B Nf7 b8Q Nce5 Bg6 Bc3+ Ka3 b2 Qa4 Ng5 Be6 Nef3 Bc5 Ba5 Re8 c3 d8N c2 Nc6 Kc3 Qab5 Re4 Bd3 Rd5 Bd7 Re2 Qd8 Rb8 Qfe7 Ra8 Rg8 Rc8 Qc7 Rb8 Qe8 Rd8 Ra1 b1Q Ra2 Qa1 Qc8 Nh3 Qbb8 Nfg5 Ngf3 Qb2+ Ka4 Qb6 Ncd4 Qf6 Re1 h1Q Ka3 Ng1 Rb2 Ree5 Re2 Qg2 Rb6 Re3 N2b3 Re6 Bf4 c1N Qbc7 Na2 Bg3 Re7 Rb7 Re6 Re1 Re2 Qb6 Bb4+ Ka4 Kb2 Rc1 Be1 Rc2+ Kb1 Ka3 Bd2
8/2b3Q1/KBNq2Q1/2NRpNB1/B1r1B3/3R1r2/1kBqP1r1/Rn3rQb w - - 0 1 legal: proof: g4 b5 c4 g5 b4 d5 cxd5 a5 bxa5 b4 a4 b3 h4 b2 hxg5 Bg7 f4 Kd7 f5 Qf8 g6 Qd8 g5 Ke8 Qb3 Nd7 Qd1 Bf8 g7 Ne5 Bg2 Ng6 fxg6 Bd7 Bf1 Bb5 Nc3 b1B axb5 Bf5 Nb1 Bc8 d4 Kd7 Kd2 Kd6 Kd3 h5 Kc4 c5 a6 e5 b6 f5 Kb5 c4 a7 c3 b7 h4 b8N f4 Nc6 h3 Nf3 h2 Nh4 f3 Nd2 f2 Ne4+ Kd7 d6 Ke6 d7 Kd5 Bh3 f1R Nf5 c2 Nc5 Qe8 d8B Qe7 Bb6 Be6 Ka6 Kc4 d5 Kc3 d6 Re8 a8B Qf7 d7 Bd6 d8R Nf6 g8Q Bc7 g7 Bd5 g6 Qf8 Bg5 Rf3 Qg1 c1Q Qf7 Qd6 g8B Qc2 g7 Rh4 Bh7 Kb2 g8Q Rc4 Qgg6 Ne4 Qfg7 Nd2 Ra3 Rh8 Rd3 Nb1 Bg2 Rg8 Bb7 Rf1 Be4 Qd2 Bc8 Rf3 Bd7 Qe7 Ncd4 Qf6 Ba4 Ba8 Rd5 Qd6 Qg2 Bc6 Rd1 Ba8 Nc6 h1R Re1 Rhf1 Qg1 Nc3 Ra1 Nb1 Bc2 Rh8 Bg8 Rh2 Bf7 Rg2 Be8 Qf8 Na7 Qf6 Bea4 Qd6 Nc6 Rc1 Na5 Rfg3 R5d4 Rf1 Bb7 Rh2 Bf3 Bd5 Nc6 Be4 Rd5 Rgh3 Bg4 Bh1 Bf3 Rg2 Be4 Rhf3
2q4b/B1R1Q1R1/rQ2NK2/1RpNp3/3rQ1Pn/kB3b2/B6N/nQq1Q3 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 h5 g4 h4 d4 c6 f6 e6 b6 h3 a6 h2 f5 Qe7 d6 Qa7 f7 Rh4 f6 Bd7 b7 Be7 f8Q Rh6 d5 Qb6 g6 Qc7 g7 Qa5 a7 Rg6 f7 Qb6 Nf3 Nh6 g8B Rf6 Bc4 Qc5 Nc3 Rg6 Bb3 Nf5 Qe8 Nh6 f8N Na6 b8R+ Qb6 Be3 Bd8 Rc1 Bc8 d7 Bc7+ d6 Qb7 d8Q Rg5+ Kf6 Nc5 d7 Nf5 Nd5+ Ka3 Qde7 Nh4 d8Q Bf4 Rf1 h1Q Nh2 Qg1 Qb6 Be5+ Kf7 Bh8 Bd4 Rg7+ Kf6 Qc7 Qc2 Qe3 Qb1 Bb7 Rf5 Qe1 Rg5 Qc8 Rc3 Rh7+ Rg7 Qc1 Be3 Ba6 Rb7 Be2 Rc7 Rh5 Rc4 Bf3 Rb4 Re5 Rb5 Re4 Bg1 Rd4 Bf2 Rb8 Bg1 Rb7 a8Q+ Ra7 Qab7 Ra6 Qe4 Qb1 Qe1 Qc2 Qg6 e5 Qge4 Qd1 Ne6 Qc1 Ba2 Bg2 Q6a7 Rda4 Nf8 Qc3 Ne3 Qb8 Q4b1 Qc1 Bgd5 Bf3 Ne6 Rb4 Bdc4 Nb3 Qac5 Nd4 Bcb3 Nc2 Qd4 Na1 Qde4 Qa8 Nd5 Qc8 Ba7 c5 Qb6 Rd4
1n5k/NqQ2B1r/1R2p2B/4NR1q/2R3p1/1nbNKr1R/1PB2R2/b3Q2Q w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 h5 exf5 Ra7 g4 Ra8 gxh5 Ba6 bxa6 Qd6 Qe2 Qd7 Qd1 Qd8 Ke2 Kf7 f4 g5 d4 Kg7 h4 c5 f6+ Kh7 h6 c4 h5 a4 a7 c3 d6 a3 d5 c2 f5 a2 d7 g4 f7 Qb6 d8N Nd7 f6 Qb3 d6 Qc4+ Ke3 Rc8 a8B Qb5 Rh3 Qb4 Na3 Rc5 Nc6 Rf5 Nf3 Qa4 Bd3 Nb8 d7 Qa6 d8Q Qb7 Nb5 Qa6 Nb4 Nc6 Qc7 Qc8 Ne5 Qe6 Na7 Nd8 Bd5 Qd7 Qe1 Bg7 f8R Nc6 f7 Nb8 B3e4 Qd8 Nbd3 Qd7 Rc8 Qd6 f8R Nf6 Bf7 e6 Rf3 Qa3 Rf2 Nfd7 Bd2 Qb3 Rc1 Na6 Rb8 a1B Rb6 Ndc5 Bc3 Rg8 Bd2 Kh8 h7 Rf4 Bf5 Nb8 B5g6 Bf6 Bf5 Kg7 h8R Qd5 Be4 Qb7 Beg6 Nb3 Be4 Be7 Bf5 Bb4 h6+ Kf6 h7 Kg7 Rd8 Re8 Rd5 Re7 Rc5 Ba5 Rc4 Bc3 Rb1 c1Q Rf8 Kf6 h8Q+ Kg5 Qh2 Kf6 Qhh1 Kg7 Rh8 Qd1 Rh3 Qc2 Bh7 Kh8 Rd1 Qb1 Bc1 Qa2 Rdd2 Rd7 Rff3 Qa5 Rdf2 Rfd4 Rf5 Rf4 Be8 Re7 Bhg6+ Rh7 Bgf7 Nd2 Ba4 Qb5 Bc2 Qe8 Bg8 Qh5 Bf7 Nb3 Ke2 Rd4 Bh6 Rf4 Ke3 Rf3+
N2k2q1/K2P1pb1/2Q4Q/1R1Q4/3Q1qnr/N1p5/1rBB1RnN/2b1BQR1 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 b6 h5 gxh5 a5 b3 a4 Bg2 a3 Bh3 Bd7 Bf1 Ba4 bxa4 Qf6 Bh3 Qd6 Bf1 Qd8 Kf2 g5 Ke3 c5 d4 a2 h4 g4 b7 c4 a5 c3 d6 g3 h6 g2 d5 Qd7 Kd4 Na6 b8B Kd8 e4 Nc7 Kc5 Qg4 Kb6 Qg3 d7 Qe1 h5 Nf6 h7 Na6 h6 Qh4 e6 Qh2 e5 Nb4 a6 Ra7 Bd2 Ne8 Nf3 Bd6 Rg1 Qh4 Bd3 Qh3 Nh2 Bf8 Bc2 Qh4 Qf1 Ng7 Na3 Be7 Rb1 Rc7 a7 a1B a8N Rc4 Ka7 Na6 Rb5 Rf8 h8Q Nc5 h7 Nf5 Qf6 Qg5 h8Q Re4 Qhh6 Qg8 Qfh4 Rb4 Qd4 Bf6 Bd6 Bg7 Bc7+ Ke7 Be1 Rb8 d6+ Kf8 Bd8 Bb2 Bg5 Nh4 Bgd2 Ne4 Qd5 Nf6 d8Q+ Ne8 Qb6 Bc1 Qbd4 Nf6 e7+ Ke8 Rc5 Ng4 Rb5 Kd7 e8R Rb2 Re7+ Kd8 e6 Qh7 Reb7 Qf5 R7b6 Qf4 e7+ Kd7 Ra6 Rd8 e8Q+ Kc8 Qee3 Rh8 d7+ Kd8 Qee4 Rh7 Rf6 Rh8 Rh1 g1Q Qc6 Qgg3 Qed5 Ng2 Rg1 Rh7 Qg6 Rh4 Qh6 Qge3 Rf5 Qe8 Rf6 Qg8 Rf5 Qe4 Rf2 Qf4
knB1Q1K1/B3R3/2RN1PB1/1pQ1q1p1/rr2R3/nR1N2b1/5N2/n2qQ1R1 w - - 0 1 legal: proof: b4 a5 bxa5 d5 a4 h5 g4 f5 gxh5 d4 e4 b6 exf5 d3 a6 Qd7 a7 Ba6 a5 Bb7 a6 Qd5 axb7 Qa5 cxd3 Qb4 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 e5 Ke4 g5 h4 c5 f4 Kc7 d4 c4 f6 c3 Kf5 c2 Ke6 e4 Kf7 e3 f5 e2 h6 e1Q h5 Qb4 h7 Qc8 d6+ Kc6 d5+ Kd7 h6 Qd2 Rh4 Qc4 Nc3 Qde2 Re4 Qg2 Nce2 Qh1 Be3 c1N Bh3 Qc2 Nf4 Qhh2 Nd3 Qb1 Qe1 Na6 b8R Qhb2 Rbe8 b5 R8e7+ Kc8 d7+ Kb7 d8N+ Kc8 d6 Rb8 a8B Nb3 d7+ Kc7 Ba7 Nd4 Nb7 Q1c2 d8Q+ Kc6 Qe8+ Kd5 Nd6+ Rb7 Bg4 Nb4 Nh3 Nb3 Nhf2 Qd1 Bh5 Qd4 Bg6 Qe5 Rc1 Na1 Rc6 Rb6 Bb7 Ra6 Bc8 Ra3 Rg4 Ra4 Rg1 Qh2 Re4 Nbc2 Re7 Rb4 Re4 Be7 Kg7 Qf4 f7 Qe5+ f6 Na3 f8Q Bd8 Kf7 Ne7 Kg7 Bb6 Kf7 Rg8 h8R Bc7 Rh7 Rh8 Rg7 Bb8 h7 Rg8 Rc1 Nc6 h8R Bc7 Qfe7 Nb8 Rh3 Rh8 Rc6 Rh4 Kg8 Ra4 Ree3 Rhb4 Re4 Bb6 Ng4 Bf2 Rf3 Bg3 Ngf2 Nb1 Q7f8 Na3 Re7 Qb3 Qff7+ Qe6 Ne5 Ra5 Rb6 Qd1 Rb3 Raa4 Ned3 Rd4 Rbb7 Rdb4 Rbd7 Kc6 Rb7+ Nd7 Rb6+ Kc7 Ra6 Qf5 Qd5 Qe5 Be3 Kb8 Rc6 Ka8 Ba7 Nb8 Qc4 Qb2 Qc5 Qe5
RnNB4/1KQ5/b2pn1B1/1R1p2r1/2q2n1R/2BN1k1P/1Qq1N3/Q2bR2R w - - 0 1 illegal: Other
3bq1k1/2N4p/2BBpQ1Q/R2NQ3/1Q1b1nb1/B7/r1PnN1RK/1q1R3Q w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 h4 f4 hxg5 f3 e4 Kf7 g6+ Ke8 g5 Ra6 g7 Rh6 g6 Rh5 Qd2 Rg5 Qd1 Rg3 fxg3 Nc6 g4 Nb8 g5 f2+ Kd2 Nh6 Bc4 f1N+ Ke1 Ne3 Bf1 Nef5 exf5 Ng8 Kf2 d5 Kg2 e6 b4 d4 c6 d3 c7 d2 b6 a4 b7 a3 b5 a2 b6 Nh6 g8Q Nc6 b8B Ne7 b7 Qd7 f6 Nhf5 g7 Qb5 f7+ Kd7 g6 Nh4+ Kh2 Nhf5 Na3 Qa6 Nb5 Ne3 Ne2 N3f5 Bg2 Qa5 Ba3 Nd5 Bf3 Be7 f8Q Qa6 Qf6 Qa8 Qgf8 Qa4 g8N Nd6 g7 Bd8 Ne7 Nc4 g8R Nf4 Rg2 Qa8 Q8g7 Ke8 Nd5 Bd7 c8Q Bc6 Qc1 d1Q Qcc7 Nd2 Qce5 Rf8 Bbd6 Qc8 Rb1 a1B b8Q Bd4 Ra1 Rf7 Ra2 Ra7 Qgh6 Ra5 Qa1 Qb1 Rd1 Qd7 Qb6 Bb7 Qc5 Ra6 Qb4 Qe7 Qh8+ Kf7 Nbc7 Qe8 Be4 Bg5 Q8f6+ Kg8 Ndc3 Ra5 Bc6 Ba6 N3d5 Bd3 Qac3 Bf5 Qf3 Bg4 Qf1 Ra8 Qh1 Bh4 Bb2 Bg5 Ra5 Ra6 Ba3 Bh4 Qff5 Bd8 Qff6 Rb6 Qa4 Rb2 Qb4 Ra2
qQ6/1qR1Pp1B/2N1RrQ1/QNb5/2Q1nK2/p2Qr1N1/2B1b2R/b1k3B1 w - - 0 1 illegal: No possible last move
B2K1B2/4N2B/2B2b1Q/Bp1QNrRn/1p3rR1/3r1P2/1q2kN2/rbQR4 w - - 0 1 illegal: Other
2N1b3/1PQ1pR2/5prQ/QK2b3/r1NN3r/BnR2BBn/k2N1N1R/r7 w - - 0 1 illegal: No possible last move
qB1qk1q1/1Brrp1Q1/Q3pR2/8/p2BN1PB/NBK4n/NR3Q2/R5b1 w - - 0 1 illegal: Other
R1q1q1K1/Q3B1NB/5R2/2Q5/Nr2nb1B/2N1NRrP/b4n1q/2kn1QNb w - - 0 1 illegal: No possible last move
bNb1N2k/Q1q1Q3/1Qr5/RRBq3n/KR3B1N/1n1Q2PB/1n4q1/2Qrb3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 d4 Kg7 Kd2 a5 Kc2 e5 Kb3 h5 f4 c5 g6 h4 f6+ Kh6 b6 h3 b7 h2 g7 Kh7 f7 c4+ Ka4 c3 g3 c2 b5 e4 f5 e3 f6 e2 d6 e1Q d5 Qee8 d7 Qde7 d8Q Qd6 Bf4 c1N Bh3 Na2 Na3 Qc5 d6 Nc1 d7 Qc3 b6 Nb3 Nb5 Ra6 Nd6 Qc7 Qc1 Qe6 Nf3 Nc6 b8N Qd5 b7 Ne5 Ne8 Bb4 f8Q Nc4 f7 Nf6 g8R Be1 Rg5 Nh5 Qfe7 Rc6 Nh4 Rf8 Rf1 h1B Rb1 Qg2 Rb5 Kh8 Rg1 Rg8 f8B Rg5 Rf1 Rd5 Rf2 Rd1 Ra2 Qd6 Qb6 Qc7 d8Q Qd5 Rb4 Qg2 Kb5 a4 Qd3 a3 Ka4 Qd5 Raa1 a2 Rb5 Nba5 R1b4 Nb3 Nd7 Bf3 b8Q Be4 Q8a7 Bg2 Nb8 Be4 Rb1 a1Q+ Qa3 Qc3 Ra5 Qc2 Qc1 Qg2 Rbb5 Bb7 Rb2 Ba8 Rb4 Bf5 Rb1 Bc8 Rbb5 Na1 R1b4 Nb3 Qd7 Ncd2 Bc5 Nc4 Qe7 Nb2+
q1B1b2Q/b1N2N2/BBr4Q/1RnQP2r/5QRQ/3N4/1nkb2R1/3rq1nK w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg2 c5 d4 f5 e4 g5 b4 a5 h4 g4 d6 Ke6 d5+ Kd7 b6 f4 b7 c4 e6+ Ke8 b5 a4 h6 c3 e7 Kd7 h5 c2 h7 g3 h6 a3 b6 a2 Rh2 f3+ Kh1 f2 Ba6 f1N Nf3 Qe8 Rg2 Qd8 Ne1 Nc6 b8Q Nd4 b7 Ne2 Be3 c1Q Bb6 Ng1 Na3 Nd2 Nd3 Nf6 Nb5 Nc4 Nc7 Nb2 Qh5 Qf1 Qh4 Qe1 Rc1 a1R Rc4 Rd1 e5 Rc1 Rg4 Rd1 Qa7 Qe8 b8R Ne4 Qb7 Ra7 Qg5 Nc5 Qf4 Bg7 Qa8 Bf6 Rb7 Bg5 Rb8 Rf8 h8Q Rf6 h7 Bb7 Qg7 Bc6 h8Q Bb5 Qgh6 Ba4 Qb4 Bd2 Rb7 Qg8 Qaf8 Rg6 Qff4 Qa8 Qbe4 Re6 Qeh7 Rf6 Qh4 Rf5 Q7h6 Rh5 e8B+ Kc8 Bg6+ Be8 Rb8+ Kd7 Bf5+ Ne6 Bb7 Raa1 Ba6 Rac1 Ba7 Rc6 Rb5 Bc3 Bb6 Bd2 Rg5 Bb4 Bh3 Bd2 Rg4 Nc5 Rg5+ Kd8 d7 Ke7 d8N Bc1 Rc2 Bd2 Rg4+ Kd7 d6 g2+ Kh2 Ne2 Nf7 g1B+ Kg2 Bd4 Kh2 Ng1 Kh1 Bc1 Rcg2 Bd2 Q6h7 Bf2 Nd5 Ke6 d7 Bfe3 d8Q Bf2 Q7g7 Bfe3 Qgf8 Bd4 Q4h6+ Kf5 Nc7 Bf2 Nf4 Ke4 Nd3+ Bf4 Qd7 Ke3 Qdd8 Kd2 Qd5 Be3 Qf4 Kc2 Qf8h6 Bc1 Rg8 Be3 Bhc8 Bd2 R8g4 Nb3 Ba5 Ba7 Bb6 Nc5
2b1RNN1/P2qq3/1R2QQ1B/2Rb1K1B/r1qR2N1/kB1Qnn2/1b6/r1n4R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 h4 Kb4 a4 e5 d4 b5 f4 g5 f6 c5 h6 c4 f5 g4 h5 g3 d6 g2 d5 c3 a6 c2 d7 Kb3 a5 b4 f7 Ne7 a7 Rh7 f6 Ba6 d6 Bc4 a6 Qb6 d8R Bb5 d7 Qa5 Re8 Qb6 d8R Rh8 h7 Bc4 h6 Nbc6 Nd2+ Kc3 Rb1 b3 Be2 Kb4 Rd4 b2 Bh5 Qc5 Nh3 g1Q Nf2 Nf5 Ng4 Be7 f8N Ka3 f7 Bf6 Rc8 Rg8 h8Q Ne3 h7 Rg7 Qe2 Qd1 Qg8 Qe7 h8R Bd5+ Kd3 Qf1 Ne4 Qd7 Re8 Rh7 Qg6 Bg7 Qe6 Rh6 Nef6 e4+ Kc3 Qf4 Qd3 Ne5 Ng8 Nf3 Rc8 Rf6 Rc5 Qfc7 Bd2 Rf4 Bc1 Rb8 Bd2 c1N a8B Rb6 a7 Ra6 Bb7 Ra4 Ba6 Rf5 Bc4 Rg5 Nf2 Rg1 Bb3 Qb8 Rh7 Rf1 Qc4 Ng5 Bc2 Ng2 Qg4 e3 Ng6 e2 f8Q Bf6 Re7 e1Q Re8 Ne2+ Kd3 Bb7 Rd6 Nf3 Bh6 Bc8 Ke4 Qbb5 Qe7 Rg1 Nf8 Qa6 Rbd1 b1B Rb6 Bb2 Qf6 Ba2 Rd4 Bb3 Qd3 Qb4 Rcc6 Ra1 Qge6 Qbe7 Kf5 Nc1 Ng4 Qb5+ Rc5 Ne3+ Kf4 Qb4 Bd1 Qc3 Bc2 Bd5 Bb3 Nd1 Kf5 Qb4 Bf4 Qc4 Bh6 Ne3+
1N3n1Q/krqr3b/B2B1Kb1/4RP2/2N4Q/BBbQ1R2/2R1rn2/2r1rNB1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 Kc7 f4 Kb6 d4 h5 b4 e6 g4 c4 d6 c3 d5 c2 d7 h4 g6 a4 d6 a3 g5 h3 g7 h2 g6 a2 f6 Ra5 f7 Ne7 g8B Rh4 g7 Qe8 d8Q+ Ka7 d7 Nec6+ Kf6 e5 b6+ Ka8 b5 e4 b7+ Ka7 Nd2 e3 Nc4 e2 b6+ Ka6 Nf3 e1R Qd3 Rb5 Ba3 c1R Nfd2 Bb4 f8R Rh7 Bf7 Rbe5 g8Q Bc3 Qh8 Nb4 Be6 Rcd1 Rc1 a1R Rc2 Rac1 Qe7 R1e2 d8B Qd7 Rg1 h1B Rg5 Rd5+ Re5 Rde1 Bc7 Bg2 Bd6 Qc7 Bc5 Bf3 Bg1 Be4 Rf7 Bg6 Qed8 N8c6 b8B Nd4 b7 Rd7 Bd5 Rg7 Qh4 Ne6 Qdh8 Nf8 Be6 Qc5 Bd6 Ka7 b8N Rb7 Bd5 Bcf5 Be6 Re3 Be2 Qc7 Nf1 Bh7 Bc8 Bfg6 Bd1 Rb5 Ba6 Rb7 f5 Re2 Rd7 Re7 Rd8 Rd7 Rc8 Re1 Rf2 Re4 Bb3 R4e2 Rf3+ Qc5 Qd2 Nd3 Qd1 Nf2 Qd3 Bd2 Na5 Qb6 Rc2 Bc3 Nc4 Qc7
Qq2rQBK/N5bN/B2r1n1R/3b1R1N/1Q3R2/r5QP/1nQrbB2/4n2k w - - 0 1 illegal: No possible last move
2r3RQ/n1N5/1nQ2N2/B1b5/Nr1BBbRq/KR1PR2Q/n3r2R/1bk4n w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 f4 Kf6 h4 c5 h6 a5 d6 g5 h5 e5 d3 a4 Kd2 g4 Kc2 e4 Kb2 e3 d7 g3 b6 g2 b7 e2 h7 e1R h6 c4 b5 Bc5 b6 Re4 Rh2 Bf2 Nh3 g1B Nc3 Be3 Bg2 Re5 Ng5 Qe7 d8B Bgf2 Ne6 Nc6 b8N Na7 Nc7 Be6 b7 a3+ Ka2 Bg3 Be4 Bc5 Na4 c3+ Qb3 c2 Bb2 Bf7 Re1 Bd5 Bd4 c1N+ Ka1 a2 Kb2 a1N Qb6+ Be6 Qc6 Nab3 Re3 Ne2 Ka2 Nbc1+ Kb2 Na2 Nd7+ Kf7 b8R Nf6 Rb3 Nd5 f6 Rb8 f5 Rb4 Ka3 Rf8 h8R Nb6 h7 Bf4 Rg8 Ng3 h8Q Nh1 Qh3 Bd5 Rg4 Re8 Rbb2 Bb3 Rb1 Bc2 Rb3 Bb1 Nb5 Nbc8 Ba5 Nb6 Nc7 Rc8 Rh4 Kg8 f7+ Kg7 f8R Qg5 Re8 Kf7 Rg4 Qh4 Reg8 Ke7 Qa8 Kd6 f6 Re7 f7 Ree8 Bh8 Re7 Nf6 Ke5 f8Q Kd4 Qh6 Re6 Bg7 Re5 Qh8 Re6 Bg2 Re5 Qc6 Re6 Reg3 Re2 Bf3 Ke3 Be4+ Kd2 Re3 Re8 Nh7 Rc8 Bd4 Kd1 Nf6 Kc1
3q1NBk/b2qr2n/6K1/1N3NRQ/1R2b2q/B5N1/1R2r1Pr/r1QBQ1Nn w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 Kg7 Kf4 c5 b4 a5 d4 h5 b6 c4 g6 a4 Kg5 c3 f4 h4 d6 h3 b7 c2 d7 h2 b5 a3 d5 a2 d6 Ra4 b6 Nh6 f6+ Kg8 f7+ Kg7 f5 Ng4 Ba3 c1R Nc3 Ne5 Be2 Rb1 Nb5 Ra7 Qc1 Rh3 f6+ Kh8 g7+ Kh7 g8B+ Kh8 Bd1 Qc7 d8N e6 d7 Rb2 Rb1 a1R Nc6 Bc5 d8N Re2 f8N Qd7 f7 Ng4 Rb2 e5 Nde6 e4 Ne7 e3 Kg6 Nf2 Nf5 Qd8 Ng3 Nd7 b8Q Nf6 b7 Nh7 Ng7 Bd7 N3f5 Bc6 Nh5 Be4 Qg3 Rh4 b8R Re7 Qg5 Ba7 Ng3 Rh3 Qh5 Rh4 Nf3 Qd7 Re1 h1Q Ng1 Qh2 Rf1 Nh1 Rf4 Qh3 Rg4 Qd8 Rg5 Qg4 Nd7 Rh2 f8Q Qf4 Qfh6 Qfc7 Nf8 Qcd7 Rb6 Rc2 Qh4 e2 Q6h5 e1Q Rb7 Re2 Rb6 Bb7 Qb4 Qf2 Qe1 Be4 Nd4 Qf4 R6b4 Qg4 Nb5 Qh4
1RK2R2/1Nb2n2/1nq3Q1/q1B3nB/3qQr2/BBNQ3r/1R1n1P1k/3b2NB w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 b4 a5 g6 c5 d6 e5 d7 h6 f6 a4 f7 a3 b6 a2 b5 c4 b7 c3 g7 c2 b6 Rh7 d5 Qf6 d6 Ra7 Qf3+ Kd4 Nc3 e4 Be2 Ke5 Ba3 c1N Rb1 a1Q Rb2 e3 g3 Be7 f8B Bd8 Rh5+ Kd4 Rf5 Bc7 d8Q Nb3 d7 Ra4 Qe8 Qa2 d8N Nd7 b8Q Nd2 b7 Nb6 Qg6 Bd7 Bd1 e2 Qa8 e1N b8R Be8 Qe2 Nef3 Nb7 Ng5 Qea6 Bb5 Bfc5+ Kd3+ Rf4+ Re4 Bb3 Qd4 Kf5 h5 g4 h4 Bd5 h3 Bc6 Nf7 g5 Nf6 g8B h2 Bd5 h1Q Bb3 Be5 Ke6 Rh3 Ke7 Qg2 Bd1 Bc4 Bh5 Nh7 Rf5 Rf4 Ke8 Nh8 Bd5 Bc7 Qb5 Nf7 Bc6 Qg4 Bh1 Qg2 Qd7 Bb3 Qaa4 Ne5 Rf8+ Qe4 Qac6 Nf7+ Qce6 Bd1 Qd6 Na4 Kd7 Qad5 Kc8 Qa2 Qgf6 Qc6 g6 Nhg5 g7 Qad5 g8B Qf5 Nf3 Qe5 Qg6+ Qf5 Ne4 Ke2 Ng1+ Kf1 Nc3 Qfe5 Ba7 Qa5 Qee4 Nh6 Bb3 Nhf7 Nge2 Qca6 B7c5 Qc6 Nc1 Kg1 N1e2+ Kh2 Ng1 Qcd5 Qa6 Qc6 Qad3 Nb6+
2q1rRBk/2BnQBN1/R5Q1/3rnq1N/6qN/3Q1bPR/K2b2nn/5NN1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 Kg7 d4 h5 Kd2 a5 Kc3 e5 Kb3 c5 g3 a4+ Ka2 c4 g6 c3 f6+ Kh6 g7 Kh7 f7 h4 f5 c2 f6 h3 b6 e4 b7 h2 b5 a3 b6 e3 d6 e2 d7 e1Q d5 Qa5 d6 Qb4 Bc4 Na6 b8Q Qa4 b7 Qda5 d8N Nh6 d7 Ng4 Qd3+ Qf5 Bf4 c1Q Ne6 Ne5 d8Q Bb4 f8R Bd2 f7 Nc5 Qe7 Ncd7 Qbd6 Ra5 b8N Bb7 Qa6 Rd5 g8B+ Kg6 Bb3 Qc8 Ng7+ Bc6 Bc4 Qd1 Bb3 Qg4 Qb6 Nc4 Bc7 Nce5 Nc3 Kh6 Nd1 Kg6 Ne3 Kh6 Kb1 a2+ Kb2 Kg6 Nf1 Kh6 Re8 Kg6 f8N+ Kh6 Ng6 Ba8 Re1 a1N Ka2 Nc2 Rf8 Ne3 Ra1 Ng2 Nh4+ Bc6 Bf7 Kh7 Qba6 Bb7 Qae6 Rg8 Qg6+ Kh8 Bc4 Nf6 Nd7 Ba8 Nc5 Nfd7 Nce6 Bb7 Nf4 Bc6 Nge2 Bb7 Nfh5 Ba8 Rg1 h1N Bb3 Nf2 Rh1 Bb7 Rh3 Bc6 Ng1 Ba8 Rd8 Re8 Bc4 Rd6 Bg8 Bf3 Bce6 Rd5 Bef7 Qb7 Ra8 Qc8 Ra6 Qd4 Rb1 Nfg4 Rb8 Nh2 Qef6 Re6 Qe7 Qdg4 Rba8 Qb7 Rf8 Qc8 Qb4 Re8 Qc5 Ne1 Qe7 Ng2
BRNn3Q/1R1N1q2/N1b5/1Qq5/1nRbBbrB/1P1K3k/1q2N1Nb/1Q5r w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 f4 e5 d4 h5 g4 a5 d6 c5 g6+ Kf6 b3 h4 b6 e4 g7 a4 g5+ Kf7 f6 Ke6 d5+ Kf5 g6 Kg4 d7 e3 f5 a3 b7 a2 f7 h3 f6 c4 d6 h2 Na3 c3 Kd3+ e2 Nc4 c2 Ne3+ Kg3 Bg2 e1Q Ne2+ Kh4 Be4 Ra7 Ng2+ Kh3 Bg5 c1B Bh4 Bg5 Qb1 Qb6 d8R Qef2 d7 Ra3 Rc1 h1Q Rc4 Bc5 f8Q Ra5 f7 Nh6 g8B Bd4 g7 Qc5 Qe8 Na6 b8N Ra4 f8N Qhf1 Bgd5 Bb7 g8N Bf4 Ne7 Nf7 Nc8 Bc6 Qe5 Bh2 Re8 Qc1 d8Q Qb2 Nfd7 Qf5 Qb6 Nd8 Qb5 Qf7 Rg8 Rh6 Qh8 Rb4 Bf3 Be3 Bde4 Bef4 Rf8 Nc7 Na6 Nd5 Qc2 Ra4 Re1 a1B Qb1 Qa2 Rec1 Bd4 Rb4 Rh7 Rcc4 Qb2 Bg5 Ne6 Bg6 Bb8 Nc1 Bhc7 Rc2 Kg3 Qb7 Rh1 Na7 Bg1 Bh4+ Kh3 Ne2 Bch2 Rb6 Bbd6 Rb8 Rg4 Rc4 Ba4 Nc8 Bd4 Rbb4 Bdf4 Qb6 Nc3 Ba8 Nd8 Bge4 Na2 Qa5 Bc6 R4b7 Bc7 Qa4 Bcf4 Qb5 Nb4+
1n5R/1rb1Q1R1/r1N3b1/2RB1R1B/QqP2rK1/1q1N4/1b1BrQ2/1kn1N1R1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 Kf6 h4 Ke5 b4 d5 c4 g5 h6 a5 c6 e6 b6 a4 f6 a3 c7 a2 b5 d4 h7 d3 b7 Kd4 h5 d2 b6 e5 h6 Ra7 f7 Bh3 c8B Qe8 Qa4 d1Q+ Be2 Bb4 f8Q Be7 Be6 Bd6 Na3 Kc3 Bd5 Qe7 Bd2+ Kb2 Nc2 Bf5 Rh5 Nf6 Nb4 Qb3+ Nd3+ Kc2 Qg7 Rf8 h8R Bg6 h7 Bc7 Rg8 Ra6 h8R Qb4 Qe7 Nfd7+ Kg4 e4 f4 e3 f5 Nc5 f6 Rf7 Rb1 a1B Nf3 Bb2 Rg1 Rf8 Bd1+ Kb1 f7 e2 Rg7 e1R Be2 Bc3 Bd1 Re2 Nfe1 Bf6 Qa5 Bb2 Qa4 Rd8 f8R Rd7 Nf4 Nd3 Rf5 Nc1 Nfd3 Rd6 Nf4 Rf6 Nfd3 Nd7 b8N Rf7 Rff1 Rf3 Nc6 Nb8 b7 Rf5 Kh3 g4+ Kh4 g3 Kg4 Rf8 Rff5 g2 Rhg5 Nd7 b8Q Rf7 Rff1 Rf3 Qb6 Nb8 Qf2 Bg3 Rgh1 g1R R1h5 Rh1 Rg1 Bc7 Re5 Rh2 Rhf5 Rh6 Bg8 Rb6 Rc5 Rb7 Bd5 Be8 Nd8 Ra6 Nc6 Bg6 Kh4 Rf4+ Kg5 Re6 Bg4 Re2 Bh5 Rf3 Kg4 Rf4+
2Nn4/n1q1Nqr1/1r1R2Bk/1RB2QR1/1P2QN2/q2bKB1r/1q1Q4/b2N3N w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 b4 Kg7 d4 c5 f4 a5 g4 e5 d6 h5 d7 a4 g6 a3 f6+ Kh6 f7 c4 b6 e4 b7 e3 d5 a2 f5 c3 d6 c2 g5+ Kg7 Qd3 h4 Qe4 h3 Bg2 h2 Nh3 Ra3 Rg1 h1R Nf2 Rb3 Bf3 Qf6 d8R Na6 b8N R1h4 d7 Nc7 Nc6 R8h7 Ne7 Rg4 Nh1 Ne8 Nc3 Rh3 Nd1 Qb2 f6+ Kh8 Bd2 Bb7 Nc8 Bg7 f8N c1Q f7 Nc7 Ne6 Nb5 f8Q Ba6 Nf4 Qc7 Qff5 Ra3 Rc1 a1Q Rc5 Na7+ Rb5 Bc3 Kd3 e2 Be3 Kg7 Bc5 Qaa2 Ke3 Qf7 Rg3 Nh6 Rg2 Qf8 Rg3 Nf7 Rg2 Kg8 g7 Rh6 Rg3 Rg6 Rg2 Kh7 g8N Qe8 Nge7 e1Q+ Kd3 Qh4 Ke3 Qh3 Rg3 Kg7 Rg2 Rc6 g6 Kh6 g7 Rb6 g8B Rg7 Bh7 Qg8 Bg6 Qf8 Re8 Nd8 Rg5 Qf7 Rf8 Qc4 Rf6 Qf7 Rd6 Qg3 Ra5 Bd3 Rb5 Qc2 Qed5 Ba1 Qb7 Qb2 Qbe4 Ne6 d8Q Rc3 Qe8 Nd8 Qed7 Rc2 Rf6 Bf1 Re6 Qg4 Bg2 Qh4 Kf3 Rc3+ Qdd3 Qa3 Rd6 Qh2 Kf2 Be2 Qdd4 Rh3 Qc3 Rh5 Ke3 Bd3 Bf3 Qhb2 Qd2 Rh3
bb3N2/Q1qBRqB1/4bQb1/Qr2R1P1/1BN1r3/3Bq2k/1N3K2/n2R1n1B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Kd7 b4 h5 g4 f5 e4 c5 b6 a5 b7 c4 d6 Ke6 d7 h4 d5+ Ke7 d6+ Ke6 b5 c3 b6 f4 g6 c2 g7 h3 g5 a4 Bb2 c1Q Na3 f3 Nc4 a3 Kf2 a2 Bd3 h2 Qf1 Qb1 Nh3 Ra6 Nf4+ Kf7 Bc3 Qb3 Bb4 Ra4 Re1 Na6 b8B a1Q b7 Qa5 d8Q Be6 d7 Nf6 g8B+ Kg7 Qb6 Nc5 d8Q Qc1 Qa7 Nd5 Bc7 Qb6 b8N Ne3 Nd7 Bd6 Nf8 Qb7 Rg1 h1B Bb8 Rh3 Qda5 Qc7 Bf7 Rg3 Be8 Rg4 Bc6 Qa2+ Re2 Nb3 Bd7 Na1 Bc6 Bf5 e6 Bg6 e7 Ra3 e8B Rb3 e5 Bg2 Bc5 Rb5 e6 Qb3 e7 Bh1 Ne5 Qf7 Bed7 Rh4 e8R Bg2 Kg3 f2 Re7 Bd5 Rh1 Be6 Nc4 Be5 Bb4 Bd6 Qd1 f1B Kf2 Bg2 Qg1 Nf1 Re5 B2e4 Qg4 Bf3 Qf5 Bg2 Nd5 Rg4 Ndb6 Bgd5 Na4 Re4 Bb7 Bc6 Nab2 Bcd5 Bbc8 Ba8 Bb7 Qc8 Na3 Rc4 Re8 Ng3 Nc2 Bh7 Rd1 Nf1 Bh1 Re4 Re7 Qc6 Bc7 Qc3 Bd8 Bb8 Ne3 Qc7 Qf4 Bhf5 Re8 Bh7 Nec4 Bhf5 Nh7 Kg6 Nf8+ Kh5 Bf6 Bg6 Qf3+ Kh4 Re7 Qd8 Qf4+ Kh3 Bg7 Qc7 Qf6 Qe3+
1q1NBQ2/q2Rr1bb/1B1n1PR1/BNQ2N1Q/K2bq3/N3R3/3r2N1/1n4kq w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 d4 Kd6 Kd2 c5 Kc2 a5 Kb3 e5 h4 g5 f6 g4 f5 e4 b6 g3 h6 e3 b7 e2 f7 e1B h7 c4+ Ka4 g2 b4 c3 h5 c2 f6 Nh6 b5 Bd2 b6 Qe8+ Bb5 Qe2 Be8 Bf5 Rh3 Be3 Na3 Bf2 Nf3 g1Q Ne1 Bh4 Be3 c1Q Qc2 Qgh2 Ng2 Qb2 Rd1 Na6 b8R Qb1 b7 Rg8 h8N Nc7 Ng6 Bg7 Ne7 Ra7 f8Q Nf7 h6 Qh1 h7 Nb5 h8Q Bf2 Qh5 Bh7 Bd2 Qg4 Re3 Qe4 Rc8 Rh8 b8N Bg1 Nbc6 Rb7 Ng8+ Re7 Na7 Qb2 Nh6 Rg8 Nb1 Na3 Rc7 Bf2 Rg1 Qb8 Rb7 Nc4 Bc3 Nd2 Na3 Nb1 Rb5 Kc7 Nf5 Nd6 Rb4 Rh8 N7b5+ Kb6 Rc4 Rg8 Rc7 Rh8 Rd7 Rg8 Kb3 a4+ Kb4 Nf7 d6 Kc6 Rd8+ Kd5 d7 Nd6 Ka5 Kc6 d5+ Kc5 Rh3 Bd4 Re3 Nf7 d6 Kd5 Nc4 a3 Ka4 a2 Nca3 a1Q Ba5 Ke5 Ne1 Kf4 Qc5 Qa2 Rg6 Qa1 Rc8 Qa2 d8N Qf2 d7 Nd6 Bb6 Qd2 Rh6 Qa5+ Kb3 Bh8 Rc7 Rg2 Rg6 Qaa7 Ba5 Bg7 Ka4 Re5 Nf7 Rh2 d8B Re7 Rd7 Ra2 Bb6 Rd2 Nd8 Qe6 Rh3 Qee4 Ng3 Ke3 Nf5+ Kf2 Ng2 Kf1 Re3 Kg1
3Qb3/qq2P1b1/3nB1BQ/N1rn4/1BR1NKR1/1Q1Q2Rr/2nQ2Nk/1q1q4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 g5 e4 c5 d4 a5 h4 f5 b4 g4 d6+ Ke6 d5+ Kf7 d7 c4 e6+ Kf6 d6 Ke5 b6 c3 b7 c2 b5 a4 b6 a3 h6 a2 h5 Qc7 h7 Bg7 h6 Ra5 Bd2 c1N Rh4 Qc2 Bc4 Ra8 Nc3 Ra5 Nge2 Bf8 Nf4 Nd3 Rc1 Nc6 b8Q a1Q b7 Kd4 e5 Qab1 Ne4 Qcb3 d8N Q3b2 d7 Nf6 e7 Ne1 e8B Nb4 e6 Bg7 e7 Qb3+ Bc3+ Ke3 Bg6 Ne8 Nc6 Nd6 Qc7 Re5 d8Q Bd7 b8Q Be8 Qa5 Rb5 Be6 Nd5 Qa2 Ra5 Qb7 Qb5 Qa6 Qb7 Bb4 Rb5 Rc5 Ra5 Qf1 Nc2 Rc4 Rb5 Qg2 Ra5 Nd3 Rb5 Qb3 Ra5 Qgf1 Rb5 Na5 f4+ Kh2 f3 Kg3 f2 Ne1+ Nc3 Qg2 f1Q Qh3 Qh1 Qd4+ Ke2 Kf4 g3 Rg4 g2 Qd2+ Kf1 Qhd3+ Kg1 Rg3 Re5 Rg4 Kh2 Rg3 Rg8 h8Q Qg1 h7 Qga7 Nf2 g1Q Ng2 Rc5 Ne4 Bd4 Qg7 Qgd1 Qf8 Rg7 h8R+ Rh7 Qg7 Rh3 Rh4 Bf6 Qh6 Bg7 Rhg4 Nd5+
b1k5/q1NpBN2/1Q1R2BB/Q2n2P1/n1Q1BR2/r4rNK/n4r2/RBb1b3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 e5 Kf2 h5 Kg3 a5 b4 h4+ Kh3 e4 g4 a4 c4 e3 g6 e2 b6 e1R g7 a3 c6 a2 b5 Re4 f6 Ra7 f7+ Ke7 c7 Bb7 c8N+ Ke6 c5 Qe8 f5+ Ke5 f6 Ke6 c6 Bd6 f8R Ba8 c7 Bc5 f7 Rh5 b7 Bd6 b6 Bb4 Nd6 Bc3 c8B Be1 Ne2 Ba5 Qc2 Rb4 Bh6 Rb3+ Ng3 Rf3 g5 Ke7 Bd3 Kd8 Na3 Ne7 g8B Nd5 Qc4 Na6 b8Q Be1 b7 Nab4 Nab5 Ra3 Bg6 Rf2 Rd1 a1B B8h7 Bb2 Nc7 Na2 Qa7 Bc1 b8Q Rff3 Qa5 Rf2 Kg4 h3 Qbb6 h2 Bb7 Rh3 Bb1 Raf3 Bhg6 Ra3 Rg1 h1N Rd4 Raf3 Rf4 Ra3 Rh8 Raf3 f8B Qe3 Bc6 Qc5 Nf7+ Kc8 Rh7 Qa3 Be7 Qa4 Qab4 Qa7 Q4a5 Ndb4 Bce4 Nd5 Rg7 Ra3 Nh5 Rhf3 Ng3 Rb2 Kh3 Nf2+ Kh2 Nd1+ Kh3 N1c3 Rh7 Bf2 Rd1 Be1 Rd4 Nf6 Rd6 Nfd5 Kh4 Ra4 Bg7 Rbf2 Bbc2 Bb2 Rh5 Ba3 Bh6 Bd2 Kg4 Bb4 Rh1 Ra3 Kh3 Na4 Ra1 Bc1 Bb1 Be1
2Q1Q1b1/8/r1BkN2n/BR1N1KN1/R1qq3R/1Q4pB/b2r1NnP/b3Nn2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 Ke4 g5 d4 a5 b4 g4 h6 a4 h7 c4 b6 a3 b7 c3 d6+ Ke6 d7 c2 b5 f6 b6 a2 d5+ Ke7 d6+ Ke6 Bd2 c1Q Nc3 g3 Nf3 Qb2 Nd5 Na6 b8Q Ra7 b7 Qc1 Ne1 Qc3 Bh3+ Kf7 e6+ Kg6 e7 Kf7 e8N Nh6 Qb3 Nc7 e3 Qc6 Ba5 f5+ Kf4 Ke6 e4 Qc5 e5 Ra6 Nef6 Qc4+ Ne4 Bg7 Qa8 Qf6 b8Q Rd8 h8R Bb7 Rb1 a1N Qc8 Nc2 Ra1 Ne3 Ra4 Nf1 Qab8 Ng4 Rh4 Nh6 Rg1 Qd4 Rg2 Qf7 Rb2 Bc6 Kg5 Bb5 Nf2 Bc4 Qe3 Bh8 Rb5 Ba2 Qb3 Bg7 Bg2 f4 Bh3+ Ng4 Qa8 f3 Qc6 Qff4+ Kg6 Qc1 Q6a8 Qcc4 Kg5 Kf7 Kf5 Ne6 Qab8 Nf4 e6+ Kf8 e7+ Kf7 Qa8 Ng2 Qab8 Qd2 Qa8 Ba1 Qac6 Qdd4 Q6a8 Rh8 e8B+ Kf8 d8N Nh6+ Ke6 Rh7 Bc6 Rd7 Nf7+ Rd8 Nd1 f2 d7 Nd2 Qab8 f1B Nf2 Bd3 Qa8 Bh7 Ng5 Nf1 Qab8 Ng4 Qa8 Bg8+ Kf5 Nh6+ Kg6 Re8 d8N Re2 Qab8 Ng4 Kf5 Rd2 Ne3 Ke7 Nde6 Re2 Qa8 Kd6 Nd5 Rc2 Qe8 Rd2 Qac8 Nh6+
bk3nq1/1rb2B1n/1B2q1N1/R2n1NRQ/2B1R3/P4RN1/Rp1rKb2/2QQ4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kd7 h4 c5 d4 Kc7 f6 e5 a6 g5 d6+ Kc6 d7 Kc7 h6 b5 h5 c4 a7 c3 h7 b4 h6 e4 f7 b3 a3 b2 f5 c2 d5 e3 f6 g4 d6+ Kb7 Nd2 g3 Ke2 g2 Ngf3 g1Q Ra2 Ne7 Rh5 Nbc6 Nh4 Ng8 Rg5 Nge7 Nf5 Qg3 Ne4 Qg1 Neg3 Qe8 d8R Nb8 d7 Bg7 f8Q Nd5 f7 Qe6 Qc5 Be5 f8R Bc7 Rde8 Rg8 h8R Rg7 d8Q Nd7 h7 Rb8 Bd2 c1B Ba5 Rg6 Rf6 Nf8 Bb6 Rg7 Qdd6 Rd7 Qf4 Bd2 Qcc1 Be1 Qg4 Bf2 Qh5 Ka8 Rhg8 Bb7 h8N Bc6 Re7 Rb7 Ng6 Qg2 Nfh4 Rd6 Rf3 Qg1 Nhf5 Rd7 Kd3 e2 Kd2 e1N Bc4 Nd3 Rgg7 Ne5 Ke2 Nh7 Rg8+ Rd8 Ree8 Qf7 Re7 Nd7 Re4 Ndf8 Rg7 Qg8 Rge7 Qh1 Re8 Qh3 R8e5 Ne7 Ra5 Nd5 Nd6 Qhe6 Ndf5 Rd7 Rc3 Rb8 Rf3 Kb7 a8B+ Kc8 Qa1 Rb7 Qab1 Kb8 Qbc1 Ra7 Bb7 Rd8 Bc8 Ba8 Bd7 Rb7 Be8 Nb4 Bf7 Rd4 Qa4 Nd5 Qad1 Rd2+
n3B2B/6q1/3R2n1/B1Rr2k1/p1N2rb1/1QQP1QNQ/1q1qrbRK/4NQ2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 Kf6 f4 c5 Kf2 g5 Kg2 a5 h6 e5 b6 a4 b5 g4 h5 g3 h7 c4 b7 e4 h6 c3 d6 c2 b6 e3 d7 e2 Na3 e1Q Ne2 Ra5 Rg1 Qe8 d8R Bb4 Nc4 Qb5 Rd6+ Ke7 f6+ Kf7 f5 Na6 b8N Qd7 b7 Ba3 Nc6 Rb5 b8Q Rb6 Ncd4 Rb2 Qb3 Bb7+ Nf3 Ba8 Qc3 Ke8 f7+ Kd8 f6 Ne7 d3 Bc5 Bd2 c1Q Qdb3 Re8 f8Q Ng6 h8B Nc7 f7 Bf2 h7 Rc2 Kh1 g2+ Kh2 Qb2 Ng3 Qe2 Ne1 Bf3 Rd1 Bg4 Rc1 Qe3 Be2 Na8 Bf3 Qg5 Bc6 Qa5 Qh6 Ke7 Qf4 Rd8 Qf3 Qb7 Be8 Rd7 Be3 Re2 Bb6 Qg5 Ba5 Qgd2 Rb6 Rd5 f8Q+ Kd8 Q8f5 Qg7 Rd6+ Ke7 Rf1 Be3 Rf2 g1R Rg2 Bb6 Qf1 Bf2 Qf3 Rd4 Rc2 Rf4 Rd4 Kf6 Rd6+ Kg5 Nh1 Ne5 Ne3 Nf7 Rg3 Qdc1 Qe5+ Kh4 Rc5 Bd7 Nc4 Qcc2 Qec3 Qd2 Rgg6 Ne5 Rg5 Qe7 Bf6 Ng6 h8Q+ Qh7 Bd4 Qh6 Qh7 Bf5 Qd7 Bh3 Bh8 Qg7 Qfc6 Rg3 Qcb7 Rge3 Qf3 Re5 Rg2 Rd5 Ng3 Kg5 Qc8 Bg4 Qd7 Bh5 Qh3 Bg4
QB2N3/4rkNb/2r4b/qRrnp3/R4B1b/QBPR4/Nnq2B2/B1Q2K2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 a5 f4 d5 b4 g5 h6 d4 c6 a4 h7 e6 b6 a3 f6 g4 f7+ Ke7 h5 a2 f5 g3 b5 d3 c7 g2 b7 Nh6 f6+ Kd6 b6 Be7 f8Q Kd7 f7 Kd6 Nc3 Qd7 Nge2 g1B Bf4+ Kc6 Ng3 Bd4 Qc1 Ra5 Rh3 Qd8 Nf5 Kd7 Ng7 Na6 b8B Nf5 b7 Nc5 h6 d2+ Ke2 d1R Rd3 Na4 Ne8 Bf6 Qfa3 Rc5 f8N+ Ke7 Bg2 Be3 Bd5 Bd7 c8Q Qc7 Bb3 Kf7 Qd8 Rd2+ Kf1 Bh4 Qc8 Rg8 h8B Nb2 h7 Rg6 Bd4 Re2 h8B Ne7 Bhf6 Bd2 Bf2 Bc6 Bg7 Be4 Bgd4 Nd5 Qd8 e5 Ne6 Rg7 Qc8 Rh7 N6g7 Qc6 Qd8 Re3 Qda5 Rg3 Qa8 Rg6 Rb1 a1Q Na2 Qa4 Bc3 Rgc6 Bcd4 Nc4 Bc3 Qb2 Ra1 Qb1 Bb2 Qa5 c3 Qc2 Bd6 Rc8 b8R R8c6 Rb5 Be3 Bb8 Bg6 B4g3 Bh6 Bf4 Be4 Rb1 Bg6 Ba1 Nb2 Rb4 Rh8 Ra4 Bh7 Nc7 Rc8 Nce8 R8c7 Bc4 Nd1 Rb5 Nb2 Bb3 Re7
2b3qR/KBrNr1n1/1qQ3R1/bp4BN/2n1R2Q/k1q2BBQ/5B1P/N1b5 w - - 0 1 illegal: No possible last move
1b1qq3/2r1Q3/qN3n2/P1R5/2pQ4/1R1bN1BB/1RQQQ1b1/1K1nBrNk w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kf7 f4 Kf6 d4 e5 Kd2 b5 Kc2 g5 h4 c5 a6 e4 a5 g4 d6 b4 d7 c4 d5 g3 d6 g2 a7 e3 h6 e2 h5 e1Q h7 Bg7 h6 Qee7 Ra3 Na6 Bd2 Qc7 d8R Qf7 d7 Qe6 Rh2 Qe1 Rb3 Rb8 a8N Rb6 Qe2 Bb7 Na3 Qd6 Rc8 Qe7 d8Q Rc6 Nb6 Nc7 Kb2 Nd5 Nc2 Bf8 Ne3 Rc7 Ka2 Qh4 Be1 Nc3+ Ka1 Ba8 Qdd2 Nd1 Kb1 Qe8 Qc2 Bd6 Qed2 Rg7 Rc5 Bb8 Qe2 Rc7 Qcd2 Kf7 f6 Kg6 f5+ Kg5 f7 Kf4 f8Q Qhd8 Qe7 Nf6 Qc2 Rg8 h8Q Rf8 h7 Be4 Qg8 Rf7 h8Q Bd3 Rb2 b3 Rh3 Rf8 Qd5 Be4 Nf3 g1Q Qdd2 Qgg6 Ng1 Bg2 Rg3 Bf3 Bh3 Bg2 Ra2 b2 Qh4+ Ng4 f6 Qh6 f7 Qf6 Nd7 Qa6 Qh8 Nf6 Nb6 Rg8 f8B Rg5 Ra3 Rd5 Rb3 Rf5 Ka2 b1B+ Ka1 Bc6 Rg2 Bf3 Rf2 Kg3 Bh6 Rf4 Bg5 Bg2 Bh4+ Kh2 Bg3+ Kh1 Qhg7 Nh7 Qgd4 Rf6 Qa2 Bd3 Qac2 Rf7 Kb1 Nf6 Rcb5 Ng4 Rff5 Rf6 Rfc5 Rf1 R5b4 Nf6 Rb2 Qf7 R4b3 Qfe8
KB2Q2b/2r5/Nn1pR1nq/nQ3r1R/5k1P/NR2Nbq1/2QB4/2NBN2b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 a5 b4 g5 c4 g4 h6 a4 e4+ Kg6 h7 f5 c6 a3 c5 a2 c7 d6 e6 g3 c6 g2 e5 f4 b6 Kg5 e7 Bd7 e8R Na6 c8Q Nc5 c7 Na6 b5 Kf5 b7 f3 b8B f2 e6 Qg5 b6 Be7 b7 Bd8 e7 Qh4 Qa4 Qh5 Be2 f1B Bd2 Qg5 Bd1 Qg4 Na3 Qh3 Qb5 Qh4 Nf3 g1Q Ne1 Qh5 Rb1 a1N Rb3 Qh6 h3 Be6+ Kc6+ Ke4 Rh2 Qg3 Rh1 Bg4 Qcf5+ Kd4 c8N Nc7 Nb6 Ra5 Nd5 Bf3 Qc2 Ke5 Kb6 Bd3 Ne3+ Kf4 Rh2 Bde4 Rh1 Na6+ Ka7 Bb6+ Ka8 Bd4 h4 Bg7 Rg1 Bh1 Rg2 Bf3 Re2 Bf6 Rd8 Bc3 e8Q Ne7 Rc8 Bd4 Rc5 Ng6 Rh5 Rg8 h8N Rg7 Nf7 Nb4+ Ba7 Rh7 Ne5 Nd5 b8N Rc7 Na6 Bb2 Bb8 Bd4 Nd7 Be5 Nc5 Bh8 Rb2 Nb3 Rb1 Nd4 Nb3 Nc6 Nc1 Bg4 Qb6 Bgf3 Rb3 Rc5 Qb5 Na5 Rg5 Rf7 Re5 Rcc7 Re6 Rf5 Rg2 Qh2 Rg5 Qg3 Rh5 Nb6#
n1b2R1Q/bR1QB1R1/B2NNN2/BQ6/2rPpNrn/1K2n2q/2n5/1n4kN w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 Kd6 f4 c5 b6 a5 h6 g5 h5 e5 f6 e4 h7 g4 f5 Ke5 d6 Kf4 f7 Kg3 b5 a4 f6 a3 d7 c4 h6 c3 b7 c2 b6 a2 Na3 Qc7 d8B Qe5 Ba6 Kg2 Rb1 a1N Nc4 g3 Be7 Qc3 Ne2 Bf5 Nd6 Nc6 b8N Qe3 b7 Ra7 Nd7 Nd4 b8Q Ne6 Qb5 Nc7 Rg1+ Kh2 d4 g2 Bd2 c1N Ba5 Qh3 Kd2 Na2 Qda4 Nc2 Ng3 Nc3 Nh1 Na8 Kc1 Rb7 Kb2 Rc7 Kb3 Rc4 Rb2 Bg7 f8R Nb1+ Ka2 Bg4 f7 Be5 Nf6 Bc8 Qd7 Bg3 Rb7 Bf4 Qab5 Bg3 Nfe8 Nf6 Kb3 Nd5 Nf6 Rg8 h8N Rg4 h7 Nde3 Ng6 Be5 h8Q Bf4 Nde8 Bb8 Nf4 Ba7 Nd6 Rg7 Rc1 g1N Re1 Nf3 Rg1 Rg8 Rg7 Nh4 Re8 Qg4 f8N Kg1 N8e6 Qg3 Rf8 Qg2 Rh7 Rg4 Rg7 Qh3
QB1Qb1kb/Q1Q2Rnn/1NP5/3p1BRB/R1n3K1/N2rN1qn/Qn6/r7 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 e5 c4 a5 h4 g5 b4 d5 f6 a4 h6 a3 h7 a2 b6 Qe8 b5 Qd7 b7 Qd8 h5 Qd7 h6 Bg7 b6 Ra5 c6 Ra8 c7 Ra3+ Qb3 Ra6 c5 Qf5+ Bf4 Nd7 b8Q Bf8 c6 Be7 b7 Nc5 Qa7 Bd8 b8Q Be7 Be2 Nd7 Na3 Nc5 Nh3 Bd7 c8B Qg6 Qbc7 Be8 Kg4 e4 Rhg1 e3 Bf5 Ne6 f3 Ra4 Nf2 Ng7 Nd1 Kf8 f7 Bf6 Qb2 Rd4 Rg2 Rd3 Bg3 Bd4 f4 Bc3 Bf3 e2 Ne3 e1N Be2 Nf3 Qc2 Nd2 Bh2 Nc4 Qd2 Ne7 Rgg1 Rg8 h8Q Nb2 h7 Qd6 Bf3 Ng6 Bd1 Ne6 Qf6 Ng7 h8Q Bd4 Qfd8 Be5 Rc1 a1N Rc4 Nb3 Ra4 Na5 Qc2 Bd4 Qb3 Be5 Qa2 Nac4 Qda8 Nh5 Qf6 Ng7 Qfd8 Rh8 Bg3 Rh1 Rg2 Bf6 Be2 Ra1 Rg1 Ne6 Bh2 Kg7 f8N+ Kg8 Nd7 Ngf8 Nb6 Ng7 Kh3 Qb4 Bh7+ Kh8 f5 Nh5 Qcd7 Qe1 Bb8 Qf2 Bg6 Nh7 Qd7c7 Kg8 Rg3 Bc3 f6 g4+ Kh4 Qf3 Bf5 Be5 Rg2 g3 Rg1 g2 f7+ Kf8 Bd1 Bh8 Be2 Qf2+ Kh3 Ng7 Bh5 Ne6 Nd7+ Kg7 f8R Qf4 Rf7+ Kg8 Nb6 Ng7 Rf1 Qe5 Rf4 Qd6 Rg4 g1N+ Kh4 Nh3 Rg5 Qe5 Kg4 Qg3+
2q2b2/R1N4N/Q1n2Bp1/1r2Qb2/BR1R4/1N3K1P/N2B1nNQ/1brk1b1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 c4 Ke6 b4 Kf5 e4+ Ke6 b6 f5 h3 a5 c6 d5 h6 a4 b5 g6 c7 a3 b7 a2 h7 f4 b6 f3 c5 d4 c6 d3 Nc3 d2 Qc2 d1B Bd2 Bg7 Bb5 Qe8 Ba4 Nf6 Nge2 Bf8 Nd4+ Kf7 e6+ Ke7 e5 Ng8 Nb3 Be2 Rhd1 Bd7 c8Q Bd3 c7 Na6 b8Q Nb4 Qa6 Qc8 b7 Nh6 Ke3 f2 Kf3 Rg8 h8B f1B Bg7 Nc6 Bf6+ Ke8 e7 Kf7 e8N Ke6 Qb2 Kf5 e6 Ng4 e7 Nf2 Qc2 Nh1 Qb2 Qd8 c8N Bb1 Nb6 Qc8 Qh2 Rb8 Nc7 Rg7 e8N Re7 Bh4 Re1 Nbd5 Be6 Nf4 Ke5 Nf6 Bef5 Na5 Kd4 Bg5 Qd8 Ng2 Qc8 Qa7+ Kd3 Nh7 Qd7 Nb3 Qc8 Qa3 Kc2 Qe7 Re5 Bf6 Rb5 Qb6 Ra8 b8R Raa5 Bh6 Rc5 Rd3 Rab5 Qee5 Rc4 Bd2 Rcc5 Ne4 Kd1 Qa6 Rc1 Rb7 Nb4 Rd6 Nd3 Rd4 Ndf2 Ra7 Bbd3 Rb1 a1N Rb2 Nc2 Rb1 Nb4 Nc3+ Kc2 Na2 Kd1 Na5+ Bc2 Rb3 Nc6 Rbb4 Bh6 Nb3 Bf8 Rd7 Bcd3 Rdd4 Bb1
3BK3/1P1R2Rb/p1R5/7n/B2bQ1N1/QrBnN1b1/Q4Nrn/n3BqkB w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 h5 g4 c6 b4+ Kb6 d4 c5 f4 h4 d6 e6 d7 h3 g6 a6 g5 h2 g7 c4 f6 c3 f7 c2 d5 Qe7 d8R Nf6 g8B Bh6 f8B Qb7 Kd6 e5 g6 e4 g7 e3 f5 e2 Nh3 e1B Qd3 Nh5 f6 Qf7 Bg2 Qe8 f7 Bf2 Nd2 Bg4 Rg1 h1N Nf1 N1g3 Bd2 c1N Be1 Nce2 Ne3 Be6 Bh1 Bc8 Rd7 Rh7 Rc1 Qd8 Qe4 Qc7+ Ke7 Nef4 d6 Nc6+ Ke8 Na5 Rc6+ Ka7 Rg2 Rb8 b6+ Kb7 b5 Nb3 Be7 Nf1 f8Q Nd3 Bf6 Bg3 Nf2 Na1 Bb3 Nh2 g8N Bg7 Bfc3 Bd4 Nf6 Rg7 N6g4 Rg6 Ba4 Rg5 Rd8 Bf5 d7 Bh7 Qa3 Qf4 Qa2 Ka8 b7+ Ka7 Rdc8 Qf3 d8B Qd1 R6c7 Kb6 Qa3 Qe2 Qa2 Qf1 Rd7+ Bc7 Rg1 Kc5 b6 Rg7 Nf6 Rg2 N6g4 Ra8 b8Q Ra7 Bc6 Bg3 Qbf4 Rb7 Ba4+ Rc7 b7 Rc6 Rb8 Rb6 Qff3 Rb3 Rc8+ Bc7 Qf8+ Kb6 Nc2 Bg7 Nd1 Rd2 Rg3 Rg2 Nh6 Bf6 Qfa3 Be5 Nb4 Kc5 Rgg7 Bg3 Ng4 Be5 Qee2 Bg3 Nd5+ Kc4 Bb4 Kd4 Qe6 Bb8 Rc6 Bbe5 Bbc3+ Ke4 N5e3 Kf3 Bed2 Bd4 Qe5 Ke2 Qe4 Qg1 Ndf2 Qe1 Nc2+ Kf1 Nce3+ Kg1 Qc2 Bge5 Qca2 Qf1 Be1 Bg3
k1nR4/5Q2/1r1qnB2/2N1P1QK/3r1bR1/bQ2N3/p1bq1RN1/2B1RBRb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kg4 Kc7+ e6 Kb7 e4 a5 h4 g5 b4 c4 d4 a4 e5 a3 d6 c3 b6 c2 h6 f5+ Kh5 a2 e7 f4 e8Q f3 b5 f2 d5 g4 d7 g3 h7 g2 d6 Ra7 Nf3 g1B Na3 Na6 Nc4 Nb4 Qf7 Ra8 Ne3 Ne7 Ne1 Bh2 N1g2 Rg8 h8R Nd3 Rg1 Qe8 d8R Ra7 d7 Rg4 Rg8 Re4 Rg4 Kb8 b7 Ra6 Qd2 Ka7 b8N Rd4 b6+ Ka8 Qb4 Bf4 Qb3 Nc5 b7+ Ka7 Rb1 Rb6 Na6 Ne6 b8R Bb7 Nc5 Nc8 Rb2 Be7 Rb1 Qg8 Rf8 Qg7 d8Q Bd6 Qg5 Qf6 Na6 Ba3 Nc5 Qe7 Rd8 Bf3 Rb7+ Ka8 Rbd7 Ra4 Rd2 Qd6 Re2 Be4 Re1 Bb7 Rb2 Bf3 Kg6 Bd1 h5 Rd4 h6 Bf3 h7 Bb7 Bd2 c1Q h8B Be4+ Kh5 Bc2 Bg7 Qd1 Bc1 Qd2 Bc4 f1B Bf6 Be2 Bd3 Bf3 Bf1 Qb4 Nh4 Bh1 Nhg2 Be4 Rd2 Bc2 Rf2 Qd2
3b4/1nQNrQ1R/qpbR1B2/R1B2qRQ/5kq1/NnR2P2/1r2B3/1K1N2q1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kf7 d4 Kf6 Kd2 Kg5 Kc2+ Kf6 h4 c5 h6 e5 f3 g5 d6 b6 h5 c4 h7 c3 d5 g4 d7 e4 h6 Ke5 d6 e3 a6 e2 a5 e1Q f6 g3 f7 g2 a7 Qf6 d8Q Qe7 d7 Qb4 a6 Qc4 Qc7+ Bd6 f8N Nc6 d8R Nb8 Na3 Qg3 Ne2 g1Q Nd7+ Kf5 Kb1 Be7 Be3 Bb7 Bc5 Bc6 Qb3 Nf6 Rc8 Rg8 h8Q Re8 h7 Qgg4 Rh4 Qa4 Qf7 Bd8 Ra2 Re7 Rd2 Kg5 Rd6 Ne4 Qe5+ Qf5 h8B Qg4 Rh7 c2+ Ka2 c1Q Nc3 Qe3 Nd1 Qc1 Be2 Nd2 Qed5 Kf4 Bf6 Qa5 Qh5 Nb3 Qdf7 Qe3 Kb2 Qeg1 Ka2 Bb7 Kb2 Nc6 Ka2 Rb8 a8R Qa4 a7 Nca5 Kb2 Bc6 Ka2 Qe6 Kb1 Rb7 Rab8 Qb5 a8R Qa6 Ra7 Qd5 Rba8 Rb8 Rg7 Nb7 Rg8 Qb5 Ra5 Qa6 Ra7 Qdf5+ Bd3 Re2 Rg5 Rc2 Be2 Be7 Rh8 Re8 Rh7 Bd8 Ra8 Re3 Rc8 Be7 Re8 Bd8 Re5 Re4 Red5 Re3 Rd3 Re7 Rc3 Rb2+
3N1Bn1/b1Q2RBR/P5BN/Kr2n1r1/QpNR4/2nnNq2/b4Q1N/kq6 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc3 b5 Kb4 e5 h4 g5 a4 e4 f4 g4 f6 c6 h6 g3 h7 e3 f5 g2 a6 e2 f7 e1N f6 Qd7 a5 Qh3 h5 Bf5 h6 Be4 a7 Qg4 a6 c5+ Ka5 c4 Ra4 c3 Bb2 c2 Na3 c1N Nf3 g1Q Nc2 Qh2 Bd3 Qgg3 Rf1 Bf5 Ne3 Bd7 Bg6 Qhg2 Nh2 Be7 f8B Q3f2 f7 Kc7 d6+ Kc6 d5+ Kc5 Bbg7 Qgf3 Rd4 b4 Qa4 Be6 d7 Ne2 d8N Qg1 d6 Nd3 d7 Nc3 Rf2 Qb1 Rf1 Nf6 Rf2 Rg8 h8N Ba2 h7 Nb5 Nc6 Bd6 d8N Nbd7 Ne5 Rb8 a8Q Nc3 N5c4 N7e5 Qb7 Be7 Rd7 Bd6 Qc7+ Kd4 Rd2 Nb5 Rd1 Kc3 Rf1 Bc5 Rd4 Ba7 Bd6 Rf8 Qc8 Qe4 Qc7 Ng8 Rf6 Nd7 Rf5 Re8 f8Q Re5 Nhf7 Rd5 Rf2 Rg5 h8R N7e5 Rh7 Qf4 Nh6 Rb7 Nd2+ Kb2 Ndc4+ Ka1 Qff7 Qg3 Bdf8 Nc3 Qf3 Rb8 Qg2 Rb6 Rf7 Qf3 Qf2 Rb5+
1K2nR1r/4pq2/4kBn1/nbBR3n/1N2P2Q/5Qq1/R3Br2/NnQBB1N1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 g4 Nf6 h4 Nbd7 f5 Nh5 f6 Bg7 fxg7 Rf8 hxg5 Nb8 g6 Nf6 g5 Rh8 Ra2 Ng8 Ra3 Nf6 Ra1 Ng8 Kf2 Kd7 Kf3 a5 Ke4 c5 d4 h5 b4 a4 d6 f5+ Kd5 c4 e4 a3 b6 h4 b5 h3 b7 f4 b6 f3 Bd2 f2 Be2 f1N Ra2 c3 Qc1 h2 Be1 c2 Nd2 Qc7 Nb3 Ng3 Na1 Nc6 b8R Ra7 b7 Nh6 g8Q Rh7 g7 Ra4 g6 Qd8 Qh8 Rc4 g8B Na7 g7 Qc7 Bf7 Rc6 g8Q Nh5 Qg2 Nb5 Qf3 Ng4 Bg6 Ng7 Bh5 Ne8 Qhf6 Ne5 Qh4 Rh8 Bg4+ Kd8 d7 Ng6 Ra8 Rb6 b8B Qg3 Be5 Rf6 Bd1 Rf7 Kc6 Nc3 d5 Nb1 Bf6 Rff8 Ra5 Ba6 Be2 Bb5+ Kb7 Rf7 Ka8 Kc7 d8N Kd6 Kb8 Rff8 Nc6 Rf7 Qce3 c1Q Nb4 Qc4 Qc1 Qb3 Bh5 Kd7+ d6 Ke6 Bg7 Rf4 d7 Qc4 d8B Qb3 Rb2 a2 Bb6 Qd5 Be3 Qf5 Be5 Qf7 Bc5 Rf5 Rd2 Rf6 Rd5 Rf4 Nac2 a1N Bf6 Nb3 Ra2 Na5 Na1 Rg8 Nh3 Rh8 Rf1 h1N Ng1 Rf8 Qfe3 Rf2+ Qef4 Rg8 Bd1 Rh8 Bhe2 Qh3 Qfe3 Ng3 Qf3 Nh5 Bfd4 Rh2 Qg2 Qh7 Rf8 Qf7 Qf3 Rf2 Bf6 Qg3+
b1Q1B2k/q3R3/1RNNn3/3N4/rRr1pBN1/K3Q2n/P1Q1BnNp/3r2b1 w - - 0 1 illegal: No possible last move
k2rBbN1/1r5B/2R2B2/5Np1/B3PKn1/r1RbQ3/2b1NQp1/Q1qBRn2 w - - 0 1 illegal: Other
4N1Rn/2nb1b1r/R2rp1pN/1kB1QB2/NB2Qb2/1B2rBq1/1Q2KP2/1R6 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 d5 b4 Kd7 c4 a5 h6 a4 c6+ Kd6 c5+ Kc7 f6 a3 f7 d4 h7 g6 h5 d3 h6 d2+ Ke2 a2 Nf3 Ra3 Ng5 Qd5 b6+ Kd8 c7+ Kd7 b7 Kc6 b5+ Kd7 b6 Kc6 Ne6 Rf3 Nc3 Na6 b8R Qd6 b7 Bd7 c8B Nb4 Bg2 Qc7 Ng7 Be6 Qe1 Nc2 Ne8 Qg3 Na4 Bd5 Ba3 Qh3 Be6 Rf4 Bf3 Qg3 Bb4 Kb5 c6 Rd4 c7 Ne3 c8B Bb3 Qb1 Rd6 Qe4 Nd5 Rhb1 Nc7 Ra8 Bg7 f8B Be5 Ra6 Bf4 b8Q+ Rb6 Bf5 Bf7 Bb7 e6 Bfc5 Rd6 Bd5+ Rb6 Bb3 d1B+ Ke1 Be2 Qbb7 Bd1 Qbd5 Be2 Qde5 Rd6 Ra8 Bc4 Ra6 Bd5 Ke2 Bc6 Ra8 Bd7 Rd8 Ne7 Qb2 Nc6 Qbe5 Rg8 h8Q Rg7 Qb2 Ne5 h7 Rg8 Qf6 Rg7 h8N Rh7 Ra8 Ng4 Qfe5 Nh6 Rf1 Rd1 Rb1 a1R Rh1 Rd6 Ra6 Bg8 Nf7 Ra3 Nd8 Nf7 Rh2 Nh8 Nf7 Rc6 Nh6 Bf7 Rhh1 Rb6 Rhd1 Bc8 Rd8 Rd6 Nf6 Bd7 Rg8 Qg4 Ne8 Qg3 Ba2 Rc3 Bb3 Re3+
1B2K3/RQrbQn2/2P3Rb/Np2R3/B6R/1rp1QB2/1rk1bR1N/1qn4N w - - 0 1 illegal: No proof kernel
n2Qq3/2NBn1pr/2rK3k/b4RRN/R5P1/1BB2nN1/1bRp1Q2/Q5bR w - - 0 1 illegal: No proof kernel
5B2/Rrp1R1R1/1n2b1q1/2r4Q/N1rnk3/2p4N/n1KQP1N1/N1QNBBb1 w - - 0 1 illegal: Other
1B4BQ/1k2r1Nb/qNR5/3QBn1N/n3qKRR/R2b3p/4rp1P/3Q1R1b w - - 0 1 legal: proof: f4 c5 b4 a5 bxa5 e5 d4 f5 dxc5 Be7 g3 Bg5 fxe5 f4 Qd6 f3 Qd1 Bf4 gxf4 Qc7 Qd4 Qb6 Qd1 Qd8 Kd2 g5 Ke3 b5 c4 h5 a4 d5 a6 Kd7 e6+ Kc6 a5 b4 e7 g4 e8R b3 a7 g3 f5 b2 a6 d4+ Kf4 h4 e4 d3 e5 h3 f6 f2 e6 g2 e7 d2 f7 Qd5 f8B Kc7 c6 Qe6 c5 Qb3 Ra3 Qe6 Bc4 Qe1 Bg7 Nh6 Rg8 Ng4 e8N+ Kd8 c7+ Kd7 c6+ Ke7 Be5 Bf5 c8Q Rh7 c7 Bd3 Ng7 Nh6 Nc3 b1B Nge2 g1Q Na4 Nf5 Ng3 Qef1 N3h5 Qgg2 Nb6 Nd7 Ba2 Rb8 a8Q Nc5 a7 Na4 Qd5 Rb7 a8R Rb8 Qcb7 Re8 Qb8 Bbc2 c8R Bb1 Q1b3 d1B Rc6 Bf3 Qd1 Qe2 Bcb2 Bbc2 Bc7 Qe6 Ra6 Qc8 Bd6+ Kd8 Bbe5 Bfe4 Rf1 Bb1 Na8 Kd7 Rab6 Qa6 Rb4 Re6 Qf8 Re8 Bc7+ Kc8 Nb6+ Kb7 Bb8 Re7 Rh8 Rh6 Rh7 Rhe6 Qh8 Bf3 Ba1 Re2 Bae5 Qg1 Rhh6 Bh1 Rhg6 Bbc2 Rg4 Qg2 Qd4 Ne3 Bg8 Bh7 Qd5 Nf5 Rh4 Bb1 Rbb3 Bc2 Rg3 Bd3 Rgg4 Qe4+
KNB5/2Nn4/1Q1QR2r/n3B3/1B1qPn1b/Q1p1BN1R/1Rbqp2B/r1k5 w - - 0 1 illegal: No proof kernel
kqQBb3/1N5Q/2R2R1P/pQ5N/1B1q1QN1/nKbnn1r1/2Q3pr/2R2B2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 e5 f4 c5 d4 Kc7 Kd2 Kb7 Kc3 g5 b6 a5 h6 g4 h5 e4 d6 e3 f6 c4 b5 g3 d7 g2 d5 e2 f5 e1N d6 Na6 f7 Qh4 d8N+ Kb8 b7 Qe7 h7 Nc5 f6 Be6 d7 Qe8 h6 Bd6 f8Q Qe7 f7 Ka7 b6+ Ka6 b8Q Nf6 b7 Ra7 Ba3 Qe8 Nd2 Ncd3 Qc8 Nc2 b8Q+ Rb7 Ne4 Rg8 h8Q Ng4 Bb4 Na3 Nf3 Ne3 Nh2 Rg3 Rc1 Bf5 Qb3 Bg6 Nf6 Bc5 Qe5 Ka7 Qc2 Rb5 Nhg4 Bd6 Qf4 Rh5 Nb7 Rh2 d8B Be7 Qd7 Ka8 Nh5 Bg5 Qb5 Bf6+ Qfe5 Qd7 Qh7 Qd6 Qfh8 Qb8 f8R Be8 Q8g8 Bg7 Rf6 Bh8 Qf4 Bg7 Kd4 c3 Qe6 Bh8 Qc8 Bg7 Qa2 c2 Kc3 Bh8 Kb3 Bg7 Rb1 c1Q Qac2 Qd2 Re1 Nd5 Ree6 Ne3 Rc6 Qd1 Be2 Qa1 Rc1 Qd4 Bf1 Bf8 Bd2 Bb4 Be1 Bc3 Bd2 Bb2 Bb4 Bc3
bK1R2Q1/2NB2b1/NQ2n1Pr/5p2/1B1q3k/pN3B1b/1RRQ3Q/1qn2Qr1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Ke3 a5 Ke4 c5 g4 h5 d4 a4 b4 h4 b6 h3 g6 c4 g5 h2 b5 f6 g7 a3 e6 c3 d6+ Ke8 Kd5 f5 e4 c2 e7 Kf7 e8R Kg6 b7 Be7 e5 Rh5 e6 Nd7 Kc6 Bf8 b8N Ra5 b6 Nc5 d5 Ba6 d7 Bd6 b7 Be5 e7 Be2 d6 Nf6 Na6 Bc4 b8Q Nd3 Kb7 Ne4 g8Q+ Bg7 Nh3 Nf4 Bg2 Be6 Bf3 Rd5 Nd2 Bf7 Nb3 Ne6 Rb1 Re5 Qf1 Nf4 Rb2 Rh7 Bd2 c1Q Bb4 Ne6 Rf8 Nf6 e8B Nd5 Rg1 h1B Rgg2 Rh4 Rgc2 Qb1 Ka8 Qf6 d8Q Bg2 d7 Re1 Qdb6 Rh6 d8Q Nc3 Qh2 Na2 Qd2 Nc1 Bd7 Qd4 Rd8 Be8 Kb8 Rd1 Be4 Kh5 g6 Kh4 Nf4+ Bh3 Nd5 Bf7 Ndc7 Be8 Bc8 Bc6 Bd7 Ba8 Bf3 Re1 Qfb5 Rh1 Qf1 Rg1
1R2N3/nb1K1kPq/3brq1Q/BR6/1p3NrQ/B2B2bp/1N1B1R2/1BQ3n1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 e5 Ke3 h5 Ke4 c5 g4 b5 a4 c4 f4 h4 d4 c3 f6 h3 g6 c2 a6 Bd7 d6 Bc8 Kd5 e4 g5 e3 a7 e2 f5 e1Q g7 Bd7 a5 Qe2 g6 Qde7 f7+ Kd8 f6 Q7e3 a6 Qe8 Na3 Qe1 Ra2 Qf2 Bd2 c1B Nc4 Ba3 Nb2 Be7 f8Q Qe3 f7 Rh7 Ne2 Qg3 Qc1 Bc8 d7 Beb4 Nf4 Bc5 Bd3 Be7 Ke6 Nf6 g8N Bad6 d5 Qh4 Qh6 Qf8 g7 Nh5 Nf6 Qg8 Ne8 Qh8 f8B Bb7 Rf1 Qg3 Ra5 Qh4 Rf2 Nc6 Bb1 Rc8 a8B Ng3 a7 Ne2 Bd3 Bb8 Bb1 Ng1 Bd3 Bg5 Ba3 b4 Rb5 Be7 Bb1 Bed6 Bd3 Ba6 Bb7 Qf8 a8R Na7 Bc6 Bbc7 Rab8 Bb7 Bb1 Ba8 Bb7 Qh8 Ba6 Bb7 Rc5 Qg5 Bad3 Qh4 Rb5 Qg8+ Kf5 Ke7 d8Q+ Kf7 Qdg5 Rd8 Qg3 Qe7 Qgh4 Rd7 Ne6 Bg3 d6 Qd8 Nf4 Re7 d7 Bd6 Ra8 Re6 Rb8 Qe7 d8B Qh8 Ba5 Qd8 Q6g5 Rhh6 Qgh5+ Rhg6 Qh6 Rg4 Q4g5 Rg6 Qhh4 Qh7 Qf6+ Kg8 Ke6 Rh6 Qg6 Qg5 Kd7 Qe5 Qgh5 Re6 Q5g5 Qf6 Qgh6 Kf7
1b3Rnk/p1p1R1qN/1NNQ4/Q4b2/2n2R2/Pr1Brb2/1Q1BB1q1/1K1Q2Q1 w - - 0 1 illegal: Other
1B3QR1/1qR4b/3pbpBK/P1NQ1Q2/N3NR2/1r2NbN1/B3nb2/k1r1n3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Ke3 Ke6 Kf4 b5 a4 h5 g4 h4 e4 b4 c4 b3 a6 h3 a5 b2 a7 h2 c6 Ba3 g6 Bd6 g5 Rh6 c5 Be7 c7 Rh8 c6 Rh7 g7 Rh8 g6 Bh4 Nd2 b1B Ra4 Nh6 g8N Ng4 g7 Ba6 c8Q Bc4 c7 Be1 Ne2 Nf2 Nb3 Qe8 Kg5 Bd5 Nf6 Rh4 g8R Rg4+ Kh6 Bb4 Nc5+ Ke7 e6 Kd6 e7 Ke5 Ng3 Na6 Bc4 Nh3 Ba2 Rb8 a8N Be6 Nb6 Ng1 Nbd5 Be1 Ne3 Bf2 Rd4 Qd8 e8Q Qe7 Qf8 Nb4 Rc4 Ne2 Rf1 h1B Qd5+ Kf4 Bd2 Nc2 e5+ Be4 Rc3 Bf3 Nfe4 f6 Rc4 Rb3 Rc3 Bf5 e6 Ne1 Bc1 Qf7 e7 Be6 e8B Qe7 Bg6 d6 Qd7 Rg5 c8N Rg4 Qb5 Qb7 Nb6 Bc2 Nba4 Rh4+ Qh5 Rh1 Qh3 Ke5 Bd2 Bh5 Qf5+ Kd4 Bc1 Bg1 Rf4 Bf2 Nd3 Rf1 Rc7 Bf3 Ndc5 Bd3 Qc6 Bc2 Ng4 Kc4 Ne3+ Kb4 Bd2+ Ka3 Qcd5 Bb1 Nac3 Kb2 N3a4+ Ka1 Bc3+ Rb2 Bd4 Rg1 Nd3 Rf1 Ba7 Rb3 Ndc5 Qa8 Qh3 Rd3 Bh5 Nc2 Ng5 Rc1 Bb8 Ne1 Bf7 Ra3 Qg4 Bh7 Bg6 Rb3 Ng5e4 Qa6 Qgf5 Qb7
r2b2Q1/3rq2p/5R2/1KRBN2Q/1RNb3p/3nNrRP/Q6B/Br2Rn1k w - - 0 1 illegal: Other
1N2b1rN/1n1BkNK1/5N1Q/RQ2bpN1/4BP1B/1R2R1Q1/2p3q1/1r1br1b1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Nd7 exd7 Kg6 Ne2 Bg7 Ng1 Bf8 Kd2 c5 Kd3 a5 Ke4 e5 b4 h5 g4 c4 b6 f6 b7 Kf7 Kf5 a4 b8N a3 g6+ Kg7 b5 e4 g5 a2 b6 e3 b7 h4 Nc3 e2 Rh3 e1B Qb3 Rh5 Bd3 Ra3 Nf3 Be7 Ne4 Kf8 g7+ Kf7 Qb5 c3 Bf4 c2 Bg3 Bc3 Qb2 Qb6 Na6 Qe3 b8R Bb7 d8N+ Ke8 Kg6 Bf8 d7+ Ke7 Qc1 f5 Nf6 Bb2 Be4 Bc8 Rb3 Rh8 Nb8 Nh6 g8B Qd2 Be6 Nf7 Qh1 Bh6 d6+ Kf8 Qc1 Rg8+ Kh7 Ba6 g6 Be3 Qf1 Bb5 Qc1 Ne5 Nf7 Nd3 Nh8 Nc5 d8Q+ Be8 d7 Nb7 Qa5 Ke7 d8N Be5 g7 Rf8 g8Q Qe2 Qb5 Ra5 Rh1 h3 Bh4 h2 Re1 h1B Qg3 Ra6 Bd7 Qf1 Rab1 a1R Kg7 R6a2 Ndf7 Rb2 Ra3 B3d4 Ra5 Rb4 Nh2 Bf3 Qh6 Qg2 Re2 Bh5 f4 Bg1 Nf3 Rb3 Rb2 Re1 Re3 Bg4 N3g5 Bd1 Rba2 Rb2 R2a3 Rb1 Rab3 Rg8+
Kb3r2/2n2r1n/3NnQ1p/3N1B1B/2B1BB1P/3p2r1/QQR4R/1nRNk2q w - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 axb5 e5 fxe5 f4 d4 Bb7 dxc5 Bf3 Bd2 Be4 Bc1 Bf5 gxf5 Qg5 Qd3 Qe7 Qd1 Qd8 Kf2 Kf7 Kf3 a5 Ke4 g5 Kd5 a4 e4 g4 h4 a3 b4 d6 c4 h6 b6 a2 e6+ Kf6 c6 f3 b7 f2 c7 g3 c8B g2 e7 Ra3 e8B Rc3 c5 Na6 Kc6 Ke5 b8R d5 Kb7 d4 b5 Qd5+ c6 Qf7+ c7 Qd5+ Bc6 Rg3 f6 Qd8 f7 Qd7 b6 Re3 Qb3 Kf4 e5 Kg3 e6 Nb4 e7 Qh3 e8B Rh7 Nc3 Be7 f8Q Nd5 Nd1 Rf3 Qf6 Rf7 Bc4 f1N Rh2 d3 Bf5 Bd6 Rc8 Nd2 Ka8 Nb1 b7 Bf4 b8Q Rf1 Ne3 Kf2 Ne2 Ke1 Nd1 g1R Nec3 Rg3 Bb7 Bd6 Bf4 Qg2 Qa7 Qh1 Qb2 Rf8 Bh5 Rf2 Qg5 Ngf6 Qa5 Nh7 Qf6 Ne7 Bbe4 Nd5 Rb8 Be5 c8N Bc7 Rb5 Bb8 Rc5 Rf7 Nd6 Nc7+ Kb7 Nd2 Rb1 a1N Qaa2 Nab3 Rc1 Nd4 Nd5 Nb1 Rc2 Nde6 Rc1 Ne8+ Ka8 Rff3 Rc8 N8c7+ Kb7 Qg2 Bb3 Kf1 Qg5 Rf8 Be3 Nd4 Bd7 R3f5 Bf4 Na6 Ka8 Qh1 R8c2 Ke1 Bc4 R5f7 Bdf5 Ne6 Qgf6 Nac7+
6Q1/n1N4n/rn3N1p/Rr1Q3R/1BQbBk2/3Brq1P/2rK1Q1p/1RQ2N2 w - - 0 1 illegal: Other
rR3N1B/2Rq1r1n/1RN1rQ2/Qqk1bpR1/1p3N1B/1B4rR/5P2/1K2n2Q w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 b6 e4 Qd6 e5 Qd8 d6 Kd7 e6+ Kc6 Ba6 Kd5 Bf1 Bd7 exd7 Ke6 d5+ Kf6 Kd2 Ke5 Kc2 g5 h4 c5 a4 f5 a6 g4 a7 c4 h6 g3 h7 e6 a5 g2 h5 c3 h6 b5 a6 b4 Ne2 g1Q Rh5 Nc6 Bg5 Be7 Nd2 Rc8 a8R Bf6 a7 Nd4+ Kb1 Rb8 Nc4+ Ke4 Na5 e5 Nc6 Nb3 Bh4 Rb5 Nf4 Qa5 d8R Bg7 d7 Nf6 d6 Rb7 Rg5 Nd4 Rab8 Nf3 a8Q Qb5 Ra7 Ne1 Bc4 Rc7 Rb6 c2+ Kb2 c1R Bb3 Ra1 Rdb8 Ra3 d8N Rf7 d7 Rg8 h8Q Nh7 Nde6 Qg4 Qd6 Qd1 d8R Ra4 Qc7 Qd7 Nf8 Ra2+ Kb1 Ra5 Ne7+ Kd4 Qh1 e4 Nc6+ Kc5 Re8 Bd4 Qf6 e3 Qcd8 e2 Rc7 Ra8 Re3 Bb2 Rh3 Be5 Rg1 Ng5 h7 Rgg7 h8B Nh7 Qc8 Rg3 Qa6 Nd3 Qa5 e1R+ Kc2 Re4 Kb1 Ne1 Rg2 Bd6 Rg1 Re6 Rg2 Be5 Rg1 Rc3 Rg5 Rg3
nn2N1k1/N2bRr2/5QKp/1qQ4p/1RNN2r1/1BQp2Rr/3Bb2P/3B3N w - - 0 1 illegal: Other
6Q1/1B4R1/QN1R1BpB/b1QP1n2/2Rn2Bp/1b2r1BK/qk2Np2/r3Nr2 w - - 0 1 illegal: No proof kernel
1QB4B/bN2n1p1/QrN1K3/1r5b/B3RQ2/RR1Bq1P1/p1n2pB1/N1kr4 w - - 0 1 illegal: Other
2R2B2/1p2nB1Q/NN1r4/QpR1Bp1K/nP4BQ/nRqB3b/1b3r2/1N2k3 w - - 0 1 illegal: Other
QBq1K2k/NN1PR3/qN2N3/p2b2nr/1Rn3p1/N6B/QR3p2/B3bQ1r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kf3 f5 d4 Kf7 b4 Kg7 h4 a5 e4 c5 h6+ Kh7 h5 g4+ Kf4 c4 d6 c3 d7 c2 e6 Nf6 Kg5 f4 b6 f3 e5 f2 d5 Be7 b7 Ra7 b5 Qb6 d8N Qd6 b6 Qb4 d6 Ra6 d7 Ra8 Nf3 Qa3 Nfd2 Bb4 e7 Qd3 e8R Qd6 e6 Qc7 e7 Bc5 Bb2 c1Q Na3 Bd4 Ne6 Qd8 Ra2 Ra6 Ba1 Ng8 Bh3 Bg7 Rb2 Ra8 Qf1 Qc6 Ndc4 Na6 b8B Bf8 b7 Qd6 Nb6 Nf6 Kf5 Kg8 h7+ Kf7 h6 Rg8 h8Q Ne4 h7 Ng5 Qc3 Bh6 h8Q Nb4 Qcc4 Nd3 Qa2 Ne5 Rg1 Q8c7 Rg3 Qdc6 Rgb3 Nc4 Rb4 Bf8 Qe5 Qb5 Qd5 Qa6 Qc6 Rh8 Qf3 Kg8 Kf6 Kh7 Q3g2 Nf3 Kf7 Bg7 Qgh1 Bc3 Ba7 Nh4 b8N Qc5 Nc6 Bb7 Bg2 Rc8 Bb8 Be1 Na7 Bf3 Rf8 Rd8 e8N Qcc8 Nd6 Bb7 Re8 Be4 Bh3 Nf3 Re7 Rdg8 Qhg2 Rg6 Qgh1 Rh6 Bg2 Ba8 Qhg1 Rh1 Bh3 Be4 Qgg2 Bc6 Re8 Ng5+ Ke7 Bb5 Qa8 Bc6 Nb7 Bd5 Bf4 Kg6 Bb8 Rh5 Kf8 Kh7 Ke7 Qc5+ Kd8 Qc6 Re7+ Kh8 Ke8 Qc8+
2nnN1NB/Qp2NRRB/1N2p3/rP3brK/2Nb1k1B/p2R1rb1/Q7/Q7 w - - 0 1 illegal: No proof kernel
1R5Q/1p3rbp/1n2Q3/2B2bN1/7k/KPR1Bb2/qpBN2RB/b2B1NQr w - - 0 1 illegal: Other
1R2n3/nN3Qp1/3n1NQp/RrKbn3/1BR3Pb/3BN1k1/Q1B3p1/2N1N2r w - - 0 1 illegal: Other
Q1BB1Nk1/1nbQ1N1N/1rB1p3/3p1qpn/QbR5/1rRP4/2B1pB2/1K4R1 w - - 0 1 illegal: Other
3NQ2R/2bK1rN1/k1pQp3/4BR2/1p1n1B1q/1n1N2QN/BpPnRr2/3N4 w - - 0 1 illegal: Other
N1Rrq1N1/3nNN2/NB3NB1/4b2K/b1r1Q3/3NPqr1/q3R2R/1B1kq3 w - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Nc6 f4 Nd4 fxe5 Ne6 Nf3 Ke7 Ng1 Ng5 hxg5 Ke8 Kf2 Kd7 Kg3 c5 Kh4 h5 d4 a5 b4 c4 b6 c3 d6 Kc6 b7 Kb5 b8N Kc4 d5 a4 d7 a3 b5 a2 f6 g3 d6 g2 g6 c2 g7 Kb3 b6 Ne7 g8N Qc7 d8N Bb7 f7 Qc3 d7 Qc4+ Qd4 Be4 e6 Qa4 b7 Rh7 Nf3 g1R Nc3 Qb4 Na4 Bc6 Rh2 Qc5 Qe4 Qd5 Nb6 Rg2 Ne5 Rh8 Nd3 Rg3 Na6 Qe5 b8R Nd5 e7 Bg7 f8N Nf6 e8B Ba4 Be3 c1Q Nh7 Kc2 Nc6 Qe1 d8N Nd7 Bg6 Qe8 Rc8 Be5 Nhf6 Rh7 Rd1 a1Q Nf7 Qa2 Bd4 Rb8 Na8 Rh8 Bc5 Rb4 Nce7 Rc4 Rb1 Kd2 Bb6 Kc2 Rb2+ Kd1 Ngh6 Rf8 e3 Rg8 Rbe2 Rf8 Qg4 Rg8 Kg5 h4 Kh5 h3 Bg2 Rf8 B2e4 Rg8 Bef5 Rf8 Qe4 Rh8 Rhf2 h2 Rg2 h1Q+ Rh2 Rf8 Nhg8 Qf3+ Qg4 Qef2 Ndc5 Qd8 Bb1 Qe1 Nd3 Qff1 Ned5 Qe7 Qd4 Rd8 Qe4 Qe8 Nde7 Qf3+
nb4b1/KRPR3B/1QR1rr1N/2qR3n/N1R1rkB1/BqR1n3/1R4q1/1N6 w - - 0 1 illegal: No possible last move
2k2n2/3rn2Q/2Pq2BR/1n1b1B1q/1BB1R3/1RBqN1Bn/2N2b2/rKB3N1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 a5 c4 h5 Kc2 d5 g4 Kd7 f4 e5 b4 h4 c6+ Kc7 g6 h3 b6+ Kd6 c5+ Ke7 b5 a4 f6+ Ke8 b7 d4 f5 h2 c7 Kd7 b6 e4 g7 a3 c6+ Kd6 g5 e3 g6 a2 f7 e2 f6 e1Q Qh5 Qg3 Qh7 Qe1 Na3 Qee8 Bd3 Ne7 g8N Nd5 g7 Be6 c8B Ne7 Nh6 Nd7 b8R Bd5 b7 Kc7 Bg6 d3+ Kb2 d2 g8B d1Q Nf5 Bg7 f8B Qd3 Ne3 Ra7 Rb1 a1N Nac2 Nb3 Be6 Nd4 f7 Be5 Bg7 Bg3 f8B Nb5 Bc3 Bf2 Ra1 Rg8 Kb1 Rg7 Ra4 Qf7 Re4 Ra1+ Kb2 Qf3 Bef7 Qh5 Bg8 Nf5 Bfb4 Nf8 Bd7 Ne7 Bdf5 Ra7 Kb1 Qd6 Ra8 Ra2 b8B+ Kd8 Ra3 Rf7 Re6 Kc8 Rb3 Rg7 Nh3 Ra3 Re1 h1N Ng1 Qd8 Bg3 Qd6 Be8 Ra7 Rh6+ Rd7 Bef7 Rg4 B7g6 Rh4 Bba3 Ra4 Bab4 Ra1+ Kb2 Bf7 Nf1 Bc5 Re4 Bc4 Bge6 Nf2 Bd5 Nh3 Bdf7 Ra6 Kb1 Bf2 Ne3 Ra5 Be8 Bg8 Bef7 Ra7 Bc4 Bd5 B3b2 Ra5 B2c3 Ra1+
nB2Q1Rb/rP1NB1Bp/2K5/R1BRnbBN/2r2r2/nN1qB3/7b/1B5k w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 f4 e5 g4 a5 b4 a4 d4 a3 b6 a2 g6 c4 g7 c3 f6 c2 f7 Nh6 g8N Bd7 b7 Be7 f8B Ra6 b5 Qb6 g5 Bc8 f5 Qc7 f6 Bg4 b6 Qd7 f7 Qb5 g6 Ra3 g7 Rd3 Be3 c1N Ne2 Nf5 Nd2 Qc4 Nf6 Ra3 g8R Nd7 Qe1 Ra7 Nb3 Nd3 Nf4 Qb5 Rd1 a1B Bg7 Bd8 b8B+ Bc7 b7 Nb6 Qe2 Na8 Nd7 Qc4 Nh5 Qc2 Beh6 Ne3 Rh4 Nc4 Be3 Bb2 Ra1 Be6 Ra5 Na3 Rh2 Bg4 Qe1 Bc3 Rd2 Qb1 Be2 Ba1 Bd1 Bb2 Bc2 Bf5+ Kf3 Qd1+ Qe2 Bc3 Bb1 e4+ Kg2 Qe1 Beh6 e3 Kf3 Qd1 Rf8 Qc1 Ndf6 Be6 Ke4 Qb2 Bf4+ Ke7 Bgh6 Bd7 d6+ Ke6 Rd1 Bb5 d7 Qc2 d8B Bd7 Bhg5 Bd6 Bb6 Bc8 Qe1 e2 Bc5 Bd7 Bd2 Bh2 Rc8 Re8 f8B Re7 Bfh6 Rf7 Rg8 Rf8 Qg3 e1R+ Qe3 Rg1 Qe1 Rg2 Bdf4 Rg4 d5+ Kf7 d6 Ke6 Rd2 Bc8 d7 Ba1 Nd5 Bh8 d8B Rf6 Kd4+ Kf5 Qe8 Ne5 Bg7 Rh4 Bde7 Kg4 Nb6 Kf3 Rd3+ Kg2 Kd5 Kh1 Bfe3 Rc4 Rd2 Bh3 Nd7 Rff4 Kd6 Bf5 Rd5 Nf7+ Kc6 Qe4 Nb6 Qd3 Nd7 Ne5+
q1B1r1bn/1NK1b3/1R1Rq1Bn/B7/pN4Q1/4P1BB/2BBR3/kr1qNn2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 h5 g4 a5 b4 c5 d4 c4 d6 Ke6 d5+ Kd7 e6+ Ke8 Ke5 a4 d7+ Ke7 g6 f4 g5 f3 b6 h4 b7 f2 g7 h3 g6 h2 e3 c3 b5 c2 b6 Rh7 Ra2 Ra7 Nc3 Ra5 Nf3 Qe8 d8N Rh3 Bd2 c1Q Ne1 Qb1 Qg4 Rh4 Bh3 Nf6 g8B f1N g7 Rh6 Bh7 Qa1 g8B Rh4 Bc2 Ra8 Rb2 Rh7 Na2 Qd1 Nb4 Qd7 Bf7 Ng8 Bfg6 Nh6 Rg1 h1Q Rg2 Na6 b8R Nc5 b7 Ne4 Re2 Nd6 Rb3 Qc6 Rd3 Bd7 Rd4 Be8 Bgf5 Bf7 Rd3 Bg8 Rd4 Ke8 e7 Qc4 Bc8 Ndf7+ Ke6 Nh8+ Kd6 Qa6+ Kc7 Qe6 d6 Qf3 Ndc6 Kf7 e8B+ Kf6+ d7 Be7 Na5 Ke5 d8B Rg7 Qh4 Rg1 Beg6 Qfd5 Qg4 Rh1 Na2 Qe4 Rd6 Qf3 Rb6 Kd5 Rd6+ Kc5 Nb4 Qfe4 Nb3+ Kc4 Nc5 Ra5 Bc1 Kc3 Bd2+ Kb2 Ra8 Q6e5 b8B Ka1 Nb7 Qe6 Raa6 Re5 Rab6 Q4d5 Bd7 Qa5 Bc8 Qa8 Kc6 Qa2 Rd5 Bc5 Ng2 Nh2 Ra6 Qf1 Ba5 Re8 Bg3 Be7 Rd6 Qe6 Kc7 Qb1 Rab6 Rd1 Bcd3 Nf1 Ne1 Qbb3 Bde4 Rb1 Bef5 Qd1 Be4 Qa7 Bc2 Qa8
B3Nr1B/1pR3NP/BB2n2q/1nR1B1kN/2n1r2r/1b4n1/1Q3bKB/5BR1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 h4 g5 e4 c5 a4 f5 d4 g4 h6 c4 e6 Kf6 a6 c3 e7 f4 e8B c2 h7 f3 a7 Qc7 d6 Qd7 h5 Be7 e5+ Kf5 h6 Bf8 a5 Qb5 e6 Qa6 e7 Qd3 d7 Qb5 d8B Nd7 a6 Ndf6 d5 Qc5+ Qd4 Qd6 Nc3 Qe5 d6 Qe4 d7 Qd3 Bf4 c1R Nd5 Qd2+ Ne2 Nh5 Ra5 Ng3 Bb6 Rc4 d8B Be6 Bdc7 Nf6 Qb2 Re4 Bce5 Nfh5 Bb5 Ng7 e8N Bc5+ Ne3+ Kg6 Bd3 Bb3 Rg1 Ne6 Bb5 Rf8 h8B Rd8 a8R Rdd4 a7 Rc4 Bd6 Rb4 Bfe5 Kg5 h7 Rbc4 Rh1 Ra4 Kg1 f2+ Kg2 Qc1 Nf4 Rad4 Bfc4 f1N Ba6 Nd2 Bf1 Nc4 Nf5 Qe3 Nh5 Qf4 Ne3 Qf6 Rb5 Qh6 Nf5 Ne2 Bh2 g3 Bb8 Re3 Kh3 Nc3 Nfg7 g2+ Bbg3 g1N+ Kg2 Re5 Rc8 Nge2 a8B Rh4 Rg1 Ree4 Be5 Bf2 Rbc5 Ng3 R8c7 Nb5
nR1rbrn1/5qKB/QN3Np1/NRR1N2q/BB4Nb/P2qq3/5Nk1/6N1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 c5 Kg5 Ke5 Kg6 Kf4 d4+ Ke4 h4 e5 f4 b5 f6 b4 a3 c4 f7 b3 f5 c3 a6 b2 d6 c2 h6 Nc6 d7 Na5 f6 Rb8 h7 Be7 f8N Rb6 h5 Nc6 a7 Bb7 a8B Na5 h6 Nb3 d5 Qc7 d8N Rb5 d6 Qc5 f7 Qb4 d7 Bf6 Nd2+ Ke3 Rb1 Kf2 Rh5 e4 Qe2+ Kg3 Nc6 e3 d8N Rc5 Na5 Rb5 Nd7 Qc4 f8N Bh4 Rc5 Bd5 Ndc6 Rb4 Ne4+ Kf4 Ndf6 Nd4 Nf2 Kg3 Ne5 Ne6 N8d7 Rb8 Neg4 Rf8 Bc6 Nc7 Bd2 c1Q Ba4 Qd1 Bb4 Bc6 Nb6 Na8 Bh3 Qf4 Qa6 e2 Bf1 e1Q Bd3 Rd8 Be4 Qee3 Kf7 Ne7 Bd3 Rhg8 h8N Kg2 h7 Rge8 Bf5 Ng8 Ng6 Qff3 N6e5 Rf8+ Kg6 Qdd3 h8R Be8+ Kh7 Qb3 Bc2 Qf7 Bd3 Nh6 Rg8 Qf5+ Kh8 Q5h5 Bh7 g6 Bc2 Qfb3 Kg7 Qe6 Rh8 Ng8 Ba4 Qa2 Rd1 b1Q Rdd5 Qbc2 Rb5 Qab3 Rdc5 Qcd3 Ne2 Bc6 Nh6 Rd5 Nb7 Rc8 Qa7 Ne7 Na5 Qbc4 Rf8 Ng8 Ng1 Rd6 Nhg4 Qcd5 Rf7 Rf8 Rb7 Be8 Rb8 Rd8 Qa6 Qf7+
n6B/1N1b1RBP/k3pK2/BbqR1rB1/3r2RB/Bbn1N3/B2q1Q1N/b7 w - - 0 1 illegal: No proof kernel
KB1B1R1R/B2r1b1N/B2p1n1k/3b1r2/pN1q1b2/2BNQ2B/1PR3B1/3nb3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kd5 e5 f4 a5 c4 e4 g4 e3 c6 a4 c5 e2 g6 e1B c7 h4 g5 h3 b6 d6 c6 h2 b7 Qe7 Qd2 Na6 b8B Qe2 Bg2 Bh4 Na3 Be7 f6+ Kf8 f7 Kg7 f5 Ra7 Nh3 Bf2 Qe3 Rh5 f8B+ Kh8 f6 Rh4 g7+ Kh7 f7 Rh5 Nc2 Qf1 Nf4 Be1 Nd3 Qe2 Ncb4 Bd7 c8B Nh6 g8N Bd2 c7 Ng4 Bg7 Rh3 f8B Bd8 Be7 Bb5 Bc3 Be1 Nf6+ Kg6 Nh7 Bc4+ Kc6 Nc5 Ba6 Rf3 c8B Nf2 Bch3 Qd2 Rf1 Bb6 Bd8 h1B Ra3 Kh5 g6 Nce4 g7 Rf5 g8R Nd1 Rh8 Bf7 Rb3 Nf6 Rf2 Ra8 Kb7 Bd4 Ra3 Be5 Ra1 Bf4 Rb1 Qe2 Rf8 Qf1 Rc2 Qg1 B1d2 Qf2 Bd4 Qh4 B2c3 Kh6 Bda7 Qg4 Bbc7 Rc8 Bcb8 Rc7+ Ka8 Rd7 Rbc1 Bg5 Rh8 Qd4 Rf2 Bf4 Rcc2 Bh5 Rf3 Bg6 Rg3 Bf7 Rgg8 Nh5 Rf8 Nf6 Bgb7 Bhd5 Bc6 Bde6 Bcg2 Bd5+
3B1r2/3pbN2/pB1n1Qqr/B2npN2/PB1Bpk1q/1K1R4/N5R1/3B2BR w - - 0 1 illegal: Other
NqNb1Q2/2b3n1/1r2NN1R/1N2P3/pNbB3K/2R3n1/3kq1Q1/3BRrN1 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 d5 a4 e5 axb5 h5 fxe5 h4 c4 h3 cxd5 Qd6 gxh3 Qc7 h4 Qe7 h5 Qd8 Kf2 Kd7 Kg3 g5 h4 a5 e4 f5 d4 g4 d6 Ke6 c6 a4 b6 Bh6 b7 Bg7 c7 Rh6 d7 Qf8 d8N+ Ke7 e6 Kf6 d5 Ke5 d6 Qf6 e7 Nc6 e8N Nce7 b8N Bd7 c8N Bc6 d7 Ra7 Rh3 Rh7 h6 Bh8 h5 Qf8 Na3 f4+ Kh4 g3 Qc2 Kd4 e5 f3 Na6 f2 Nf6 g2 Rc3 Rb7 Nc7 Rf7 h7 Bd5 h6 Rb6 Na8 Bc4 Be2 f1Q Bd1 Qe2 Bb2 Bg7 h8R Nf5+ Kh3 Ng3 h7 Qb4 Kh4 Nh6 Rb1 Qd6 Qg6 Qb8 Nb5+ Kc5 Ne6+ Kb4 d8N Nhf5+ Kh3 Bh6 Rbc1 Ng7 Kh4 Be3 Qg4 Bc5 Qe4 Bd6 Qg4 Bc7 Ba1 Ka5 Nc6+ Ka6 Nb4+ Ka5 Rd8 Rf8 h8Q Rf7 Rd6 Rf8 Nh7 Rf1 Nf6 Bd8 Qf8 Bc7 Nf3 g1B Rc6 Bc5 Ng1 Be7 Qf3 Bed8 Qg2 Bb3 R3c5 Bc4 Bd4 Bd5 R5c3 Bc4 Rd6 Qd3 Nc2 Ne8 Nf4 Ne4 Bf3 Qe3 Re1 Ba2 Ra3 Be6 Bd1 Ng7 Rc6 Qe2 Rg3 Bd5 Rg6 Ng3 Rh6 Ba2 Ne6 Bb3 Ne3 Ba2 Rc5 Kb4 Nc2+ Kb3 Rc3+ Kb2 Nba3 Kc1 Nb4+ Kd2 Nb5 Bc4
nr1qbRNQ/6r1/Q3R3/4NNNP/3rB3/1kN2N2/pB1n3B/K1q1q1N1 w - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 a4 a5 axb5 d5 c4 f4 cxd5 e6 e3 a4 exf4 Bc5 f5 Be3 Qg4 Bb6 Qd1 Ba5 bxa5 Qe7 Ke2 Qf6 Ke1 Qd8 f4 Ke7 h4 Kd6 d4 c5 Kd2 g5 Kc2 e5 Kb2 e4 h6 c4 f6 e3 f5 g4 a6 e2 a7 e1Q h5 g3 b6 g2 f7 Nf6 f8N Nc6 b7 Qe4 b8B+ Qc7 h7 Bd7 Ng6 Nd8 Nh4 Be8 Nc3 Ng8 f6 Qe6 f7 Nb7 f8N Qe3 Nd7 Qe6 Nf6 Ne7 Qd3 Bb5 Ng8 Qg6 Nf5+ Kd7 d6 Ke6 d5+ Ke5 d7 Nd8 d6 Ne6 d8N Be8 d7 a3+ Kb1 Qh6 Bb2 Qe3 Rh4 Qg3 Rf4 Nd5 Be2 Qh4 Bf3 Qe1+ Ka2 Qd6 Be4 Nec7 Ne6 Qe7 Rc1 Qd8 Ka1 a2 Ned4 Qg3 Qf1 Qe1 Ndf3+ Ke6 Nh3 g1R Qe2 Rg7 Nhg1 Nb6 Qd3 Nb5 Bd6 Rb8 a8N Na3 Nc7+ Kf7 Be5 Nb1 Ne6 Na8 Rc2 Rb4 Re2 Rb8 Qd6 Rb4 Qa6 Ra4 Nd5 c3 Bd6 c2 Nc3 c1Q Bc7 Rd4 Neg5+ Kf8 Be5 Qb6 d8N Qf6 Nc6 Qd8 N5h3 Kf7 Bd6 Ke6 Nce5 Ra4 Nfh6 Rd4 Rf8 Rb7 Nf5 Rb8 Ngh6 Rg8 h8Q Rg6 Ng8 Rg7 Nc6 Rdb4 Bh2 Rd4 Ng3 Kd6 Nhg5 Kc5 Nce5 Kb4 Nf5 Kb3 Rd2 Rdb4 Rd6 Rd4 Re6 Nd2+
4nB2/1R2P2k/1Q2NRr1/2q1bN2/1NBrp3/Rr1Rn1R1/1rR1K1R1/3q2Q1 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 h5 a4 e5 axb5 d5 cxd5 h4 d4 h3 d6 Rh7 d5 Be6 dxe6 Qe7 gxh3 Rh6 h4 Rh8 h5 Qd8 f4 g5 h4 c5 b4 a5 h6 c4 h7 e4 d7+ Ke7 h5 Kf6 b6 Kg7 e7 g4 f6+ Kh6 b5 a4 b7 c3 b6 a3 f7 a2 f5+ Kg7 h6+ Kf6 Rh2 c2 Na3 g3 Bc4 g2 Ke2 Bg7 f8R+ Ke5 f6 Kf5 f7 Kg6 Nf3 g1R Nh4+ Kf6 Nf5 Kg6 Rg2+ Kh5 Qf1 Nc6 b8R Bf6 b7 Qb6 d8R Na5 Rd3 Rh1 Qg1 Rh2 Bb2 c1Q Nc2 Qd6 Nb4 Qc5 Rfc8 Be5 f8N Nf6 Ne6 Rd8 h8R Ra6 h7 Rc6 Rf8 Ne8 Rf6 Rd4 Rc7 Rcd6 Rbc8 Rh3 b8Q Qb1 Qb6 Qd1+ Kf2 Rg3 Rb7 Rg6 Rdg3 Rd3+ Bd4 Rb3 Be3 Rd4 h8R+ Rh6 Rhg8 Rg6 Bd2 Rb2 Rd3 Rb3 Bh6 Rb2+ Ke3 Rb3 Rc1 a1R Rcc3 Rab1 Bf8 R1b2 Rcc2 Qc6 Ra8 Qc5 Nfg7+ Kh6 Nf5+ Kh7 Ra6 Rh6 R8g3 Rg6 Raa7 Nc6 Ra3 Na5 Ba6 Nc4+ Kf2 Qc1 Ke2 Ne3 Bc4 Qd1+
1n4Qn/2bb3Q/BqQ1b1Q1/k3B1N1/1b1RQQ2/2nQ1p1P/1N2R3/K2Nq3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 fxe5 d5 axb5 g4 c4 Bg7 cxd5 Bf8 Nh3 a5 Nf4 h5 Nc3 Ra6 Nb1 Rg6 Nh3 Rg5 hxg5 h4 Ng1 h3 Nf3 h2 Ng1 Rh3 gxh3 Ke7 Ra4 Kd7 Ra1 Ke8 e4 Kd7 b4 c5 d4 Kc7 Kd2 Kb6 Kc3 f5 Kb2 f4 g6 a4 g7 c4 e6 f3 e5 g3 d6 g2 d5 Nf6 g8Q Nbd7 e7 Nh7 e8Q Nc5 d7 Nf6 e6 Na6 e7 Nh7 d6 Nc5 Qgg6 Ne6 Bf4 Nc7 Ra2 a3+ Ka1 c3 Ne2 g1B Be5 c2 Nec3 c1Q Qdc2 Nf6 Nd1 Bh6 Nb2 Qd2 Nc3 Ng8 Ncd1 Na6 Qcd3 Qc7 d8N Nb8 Ne6 Bd7 Ng5 Bc5 Qb1 Be6 d7 Qe1 d8Q Bd6 Qge4 Bf8 Q8g6 Nh6 e8Q Nf7 Qde7 Qc5 Qbd3 Nh8 Qeh7 Bc7 Rg1 h1B Rg4 Bg2 Q8c6+ Ka7 Be2 Bf1 Rh4 Qc4 b6+ Ka6 b5+ Ka5 b7 Qb3 b6 Bb4 Qd8 Qe3 Ba6 Bb5 Qdd3 Qd4 Qee3 Qc5 Rd4 Ba4 Qee4 Bb5 Qcd5 Bbd7 Qc6 Qd6 Na4 Qc5 Re2 a2 Nb2 Bc8 Qge8 Nd7 Rd5 Qf2 Nf7 Qe1 Rd6 Qcg1 b8Q Bd8 Ng5 Qgf2 Qba8 Bc7 Q8g6 Qc5 Na4 Qcg1 Kb2 a1N Kb1 Qgf2 Nb2 Nb3 Rd5+ Nbc5 Ka1 Qd4 Rd6 Na4 b7 Qb6 Rd4 Nc3 b8Q Bcd6 Bg7 Bh2 Qbd6 Bg3 Qf8 Bc7 Qff4 Nb8 Be5 Bcd7 Qd6 Nc6 Qag8 Nb8 Qdd5+ Bc5 Qc6 Bb4
3BQ1r1/1r1B2B1/PK4R1/N3Q1Bp/1kNQBBq1/rnR1n3/B4n2/1r5q w - - 0 1 legal: proof: f4 a5 e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 Kf7 bxa5 Be6 h3 Bh6 f6 Ke8 g3 Bf7 f5 Bf4 gxf4 g3 Qf3 Bh5 Qd1 Bg4 hxg4 Ra7 Be2 Ra6 Bf1 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 h5 g5 b4 a6 e6 g6 b3 a7 c6 a5 b2 g7 g2 f7 Qc7 f8B+ Qe7 f6 Rh7 a6 Nh6 g8B Nf7 f5 Nh6 f7 Rg7 f6 Rh7 Bb5 Rh8 Nf3 g1N Ra3 Rh7 Ne5 Nh3 Rg1 Nd7 Nc4+ Kc7 d6+ Kd8 Bg7 Nf2 f8Q+ Qe8 f7 Nc5 d7 Kc7 Na5 Kb6 Rc3 Qc8 Qd6 Nhg4 f8Q Ne3 Na3 b1R Rg6 Rb8 a8B Nb3+ Ke5 Rh8 d4 Rb7 d5 Ra1 Qb8 c5 Kd6 e5 Qd4 e4 Qe8 Rb1 Be6 Rg8 Bf7 Ng2 Bg5 e3 Bf4 e2 Be6 e1Q Bc4 Nc1 Ba2 Nb3 N3c4+ Kb5 d8B+ Kb4 Bd7 Ne3 Bdg5 Qh1 Qc7 Ra1 Kc6 Rb1 Bh3 Qg4 Qce5 Qf1 d6 Qh1+ Bg2 Ra1 d7 Rb1 d8B Ra1 Bb1 Ra2 Bge4 Ra3 Nb6+ c4 Ba2 Rf7 Bb7 Re7 Bc8 Rb7 Qd3 Qf1 Bd7 Qh1 Rc1 c3 Nbc4 c2 Qdd4 Rc7+ Kb6 Ra7 Rg1 c1R Rg3 Rb1 Rh3 Nf5 Rd3 Ne3 Rc3 Rb7+
K4N2/1p1Q1qr1/P2R1BBR/8/1N1n3N/2N1b3/2QpB1r1/1nnrNNNk w - - 0 1 legal: proof: g4 a5 d4 c5 dxc5 f5 f4 g5 fxg5 f4 e4 d6 b4 f3 bxa5 Bf5 exf5 Na6 h4 f2+ Ke2 Nb8 g6 Nc6 Bh3 f1Q+ Kd2 Qc4 Ke1 Qf4 Bf1 Qg5 hxg5 Nb8 Ke2 Kd7 Kd3 Kc6 Kd4 h5 a4 h4 c4 h3 g7 h2 a6 e6 f6 d5 a7 Rh3 g6 Qe8 a5 Rb3 f7 Ra3 a6 Qd7 g5 Rh3 Nd2 Ne7 g8N Qc7 g7 Rh7 g6 Qa5 Nf6 Ng8 Bb2 Bd6 f8N Bc7 Qc2 Ne7 g8B Bb6 g7 Qb4 N6d7 Qb3 Be2 Qb5 Rd1 Nc8 Ne5+ Kc7 Nf1 Qa5 Nef3 Kc6 Ne1 Nd6 Bf7 Ne4 g8N Qa2 Nf6 Rg7 Bg6 Nc3 Ne4 Nb1 Nc3 Qb3 Ke5 d4 Rd2 d3 Ba1 Kc7 c6 Be3 Bb2 Kb6 Kd6 e5 c7 e4 c8Q Nc6 Qd7 Nd4 Ba1 Re8 Rd1 Re5 Rd2 Rg5 a8N+ Ka7 Kc7 Rg2 c5 Qf7 Kd8 Kb8 c6 Ka7 Nc7 Kb6 Kc8 Kc5 Kb8 Kc4 N7d5 Kc5 Qf5 Kd6 Qc8 Ke5 Nb4 Kf4 c7 Qd5 Qh3 Qf7 Rd1 d2 c8N Bf2 Qd7 e3 Beh5 e2 Ka8 Be3 Nd6 Rh7 Nf5 Rg7 Nef3 e1N N5h4 Nd3 Re1 Nc1 Bg4 Bf2 Re6 Be3 Ne1 Nc6 Be2 Nd4 Ngf3 Kg4 Rd6+ Kf4 Rg1 h1R Bb2 Rf2 Rg5 Rg2 Rh5 Rhg1 Rh6 Rh1 N1h2 Rf1 Ng1 Kg3 Nef3 Rd1 Ne1 Kf2 Nf1 Bf4 Ne3 Kg3 Ba1 Kh2 Nf1+ Kh1 Na4 Nb5 Bf6 Be3 Nc3 Nd4
1K4N1/5N2/n2r1Bpq/1Np1Q2B/NbkqQ1R1/2NN1P1n/4bN2/5BqR w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 d5 exf5 b5 a4 d4 axb5 d3 cxd3 a4 d4 Nf6 d5 Ra5 bxa5 Ng8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 a3 d4+ Kb4 h4 c5 h6 a2 a6 e6 d6 g6 b6 Be7 d7 Bf6+ Kd6 e5 h7 e4 h5 e3 a7 e2 a8B e1Q d5 Nc6 h6 Na7 b7 Bd4 b8N Qe2 f6 Qf8+ Kc7 Qee8 d8N Qe1 f7 Qe4 d6 Ne7 d7 Bg7 Nh3 Qd3 Qg4+ Bd4 Na6+ Kc4 Nb4 Nf5 Nc3 Ng7 Bb2 Nc6 Qe4 Nf5 Nb7 Ng7 d8N Na7 Ndc6 Qe7+ Kb8 Rg8 h8Q Be6+ f8N Bc8 h7 Qf6 Ne7 Qf7 Nd7 Nh5 Qhe5 Qg7 h8N Nb5 Nf7 Rd8 Ng8 Nf4 Rg1 Qh8 Rg4 Qh6 Rc1 a1Q Nb6+ Kb3 Nbd6 Nc7 Ndb5 Rd6 Rd1 Ba6 Nba4 Kc4 Bb7 Qc1 f3 Qb1 Nf2 Nh3 Bc8 Qa1 Rf4 Qc1 Bg4 Qe3 Bh5 Qe1 Bg2 Qg1 Rg4 Qdd2 Nbd3 Qdf4 Qe1 Be3 Rb1 Qd4 Bf1 Bd2 Q1e2 Be1 Q2e4 Bd2 Bc1 Be1 Bg5 Bd2 Bf6 Be1 Na2 Bb4 N2c3 Qg2 Ndb2+ Kb3 Na7 Qhe3 Bb5 Qh6 Rh1 Qg1 Bf1 Be2 Nbd3 Kc4 Nab5 Na6+
BnN2B2/2R3b1/3nK2r/2PrBp1Q/R1p2nQ1/4B1b1/4Bb1N/1k2BB1R w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 b5 g4 b4 gxh5 b3 axb3 Ne7 b4 Bb7 b5 Ba6 b6 Bc8 b7 Ng8 b4 c5 d4 d6 b5 Bd7 b6 Bb5 cxb5 c4 Ra3 Qc8 Ra1 Qc5 dxc5 Ke7 Bg2 Kd8 Bf1 Ke8 Kf2 Kd7 Ke3 Ke6 Ke4 a5 h4 g5 h6 g4 h5 g3 h7 g2 h6 f6 Be3 a4 Nc3 a3 Na4 a2 Nf3 g1B Nh2 Nc6 b8R Bf2 b7 Be1 b6 Bh4 Rc8 Be7 b8B Nd4 b7 Bf2 Rc7 Ra7 Nb6 Nc2 Nc8 Nd4 Kf4 Kd5 e6 Bf8 e7 f5 e8B Ne7 Bh5 Bg7 Bg4 Rd8 h8Q Ra6 h7 Ng6+ Kg5 Ke4 Qe8+ Ne5 Qh5 Ng6 h8B Be5 Bg7 d5 Bh6 Nc6 Bf8 Beg3 Kf6 d4 Ke6 d3 Beh6 Kd4 e4 Kc3 e5 Kb2 Be3 d2 Qf3 d1N Qg2 Rd7 Bge2 Bh4 Qgg4 Rd3 Kf7 Bhg3 e6 Rd7+ e7 Nc3 Ke6 Rd5 e8B Ne4 Bd7 Nd6 Be8 Nce7 Bc6 Kc2 Rb1 a1B Rb4 Bc3 Ra4 Kb1 Rd7 Ne4 Be5 Nd6 b8B Bb2 Ba8 Nc6 Bc7 Nb8 Ba5 Bc3 Rc7 Ba1 B5f4 Bg7 Be1 Nh8 Bc1 Nb7+ Ke7 Rh6 Bce3 Ng6+ Ke6 Nd6 Be5 Nf4+
k7/P3b3/Q1b4N/pn3BQB/q1BB2pb/Bb6/qNR1BnRR/1BK5 w - - 0 1 illegal: No proof kernel
1Q4BN/3KBB2/1Q6/1Q1B1nBR/n4bp1/1PqnpBbp/rk1N2RB/8 w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 h4 g5 f4 a5 f5 Ra6 h5 Qc7 f7+ Kd8 Rh2 Rd6 Rh1 Rg6 hxg6 Bb7 f6 Be4 Bh3 Bf5 gxf5 Kc8 Bg2 Qd8 Bf1 Kc7 Ke2 e5 Kd3 d5 c4 h5 c6 Kd6 g7 Kc5 b3 Kb4 b6 a4 c5 g4 b7 h4 c7 a3 c8B e4+ Kd4 a2 Ke5 d4 Ke6 d3 c6 d2 c7 Bd6 f8Q Rh7 f7 Ne7 g8B Rh5 f6 Ng6 Qe2 d1N Nh3 Nb2 Qh6 Ne5 f8B Nbc6 b8Q+ Kc5 f7 Kd4 Nd2 Kc3 Bg2 Kc2 Be7 Ng6 f8B Rf5 Qeb5 Kc3 Bf3 Nb4 Nf4 Rf7 Bb7 N4d3 c8B Qa5 Bd5 Na4 Kd7 h3 Rh2 Nh4 Ng6 Nf5 Nh8 Bg3 Rg2 Kc2 Qhb6 Qc3 Bh6 Rf8 Bhg5 e3 Bca3 Rf6 Bad6 Kb2 Bcb7 Rf8 Bdf7 Rc8 Rc1 a1B Bbd5 Rf8 Q8b7 Ra8 Qb8 Be1 Bh2 Bg3 Rf1 Ng7 Bh4 Ka2 Qc8 Qc4 Qb4 Bae5 Be2 Qc3 Q4b5 Kb2 Rf5 Bef4 Rh5 Nf5 Bef3 Ra5 Qcb8 Nac5+ Kc6 Ra2 Bhg5 Na4+ Kd7 Kc1 Q5c6 Kc2 Qcb5 Kb2
NR1q1Q2/4K1N1/1q1Q4/3R1BNr/N2N1b1N/PqNb2Bn/1n2Qr2/r2b3k w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 g5 d4 b5 f4 e5 h4 c5 a3 c4 h6 c3 h7 b4 h5 g4 h6 c2 a6 g3 f6 g2 a7 b3 f5 b2 f7 Qf6 Qe2 Qe7 f6 Qd7 Bf4 c1R Rh5 Rc2 Nc3 b1B Bg3 Qe7 Nf3 g1Q Bh3 Qe6 Bf5 Nd7 Ng5 Be7 f8Q Nb6 f7 Rb8 a8N Na4 Ra2 Bb7 Rb2 Qc8 Ne6 Bc6 Ng7 Rb7 Rb4 Nb2 Rb5 Rc7 Rb8 Ba4 Qd8+ Rd7 f8N Bh4 Nfe6 Bg5 Nc5 Bf4 Qf8+ Ne7 Rg5 Bb3 N5a4 Rb7 Rh5 Rb5 Rg5 Rg8 h8N Rc5 Qd3 Rf2 h7 Bd1 Ng6 Ra5 Nh4 Rb5 Qe8 Ng6 h8Q Rc5 Qh5 Rh8 Qf3 Rh5 Qe2 Rc7 Qf8+ Re7 Bd7 Bbc2 Kf5 e4 Kf6 e3 Bf5 Bb1 Qf3 e2 Qg2 e1Q Qgf1 Qe3 Qfe2 Nh8 Qdd2 Nf7 Qdd3 Nd8 Qdd2 Ne6 Qdd3 Kd7 d6 Kc6 d7 Re8 Qdd2 Bd3 Kf7 Qf3 Kf6 Re7 d8N+ Kd6 d5 Qe3 Rg4 Ng5 Nde6 Nh3 Rg5 Qb6 Nd4 Qb3 N4b6 Kc5 d6 Rb7 Nba4+ Kc4 Nb1 Kd5 d7 Rc7 Ke7 Rc1 Qf1 Ke5 Nbc3 Rb1 d8N Ra1 Nce2 Kd5 N8e6 Ke5 Bg4+ Ke4 Rd5 Be5 Qh6 Bf4 Bf5+ Ke3 Bh2 Qg6 Ng5 Qgb6 Nec3 Re2 Qh1 Kf2+ Qe4 Rc2 Bg3+ Kg1 Qf3 Rf2 Qe2 Kh1 Qd6 Qcd8+
bBb1N1kr/2B3q1/nn1Q1bNR/4Q1nB/N2N2NN/3P1b1b/N1RK1r2/8 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 b5 e4 f5 a4 Kf7 a6 h5 d6 c5 a7 c4 e6+ Kg7 e5 h4 g6 h3 g5 b4 d7 f4 a5 c3 a6 c2 e7 f3 e8Q h2 e6 b3 e7 b2 Ra2 Qa5 d8B Qf5 Bc7 Nf6 Nc3 b1B Be2 Kg8 g7 Kh7 g8N Qg4 g6+ Kg7 Nh6 Qe6 Ng4 Kg8 g7 Kh7 g8N Qf5 Qb5 Nd5 e8N Qg5 Ne7 Qg8 Ng6 Nb6 Qe5 Bd6 Rb2 Qg7 Na2 N8d7 Bb8 Kg8 Bc7 Rb8 a8N Nc5 a7 Rb7 Bb8 Na6 Nac7 Be7 a8N Bf6 Ne6 Rf7 Nd4 Rf8 d3 f2+ Kd2 f1B Ngf3 Bh3 Qd6 Rf7 Nfh4 Rf8 Rg1 h1B Qe1 Bf3 Rh1 Rf7 Qeg3 Rf8 Qge5 Rf7 Nc3 Ba2 Rh2 Bad5 Na2 Nc5 Rh1 Ne6 Bc7 Ng5 Rh2 Nd7 Nb6 Ba8 Na4 Rf8 Rb6 Rf7 Bb2 c1N Rc6 Nb6 Rc2 Rf8 Bc3 Rf7 Ba5 Rf8 Bb8 Nb3+ Kd1 Nd5 Bac7 Nc5 Kd2 Nb6 Nhf5 Bf1 Rh6 Na6 Nfh4 Bh3 Ne3 Bh1 Bh5 Bhf3 Ng4 Bfg2 N2c3 Bd8 Ke1 Rf2 Na2 Bf6 Kd1 Bgf3+ Ke1 Rf1+ Kd2 Rf2+
B1qq1NQn/B2n1R1N/Q2R1Prr/1nB5/1b3Bk1/B1nN3b/3BK3/2r3B1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 e5 f4 c5 d4 a5 b6 g5 f6 g4 h6 c4 h7 a4 b7 c3 h5 g3 f7 e4 b5 a3 b6 e3 h6 e2 f5 g2 d6 a2 d5 c2 Ba3 c1Q Nc3 Ra6 Na4 Nf6 Nb2 Qcc7 Nf3 g1R Nd3 Rg7 Ng5 Qc4 Qa4+ Qb5 Rd1 a1N Bg2 Rhg8 h8B Ra7 h7 Ra6 Rf1 Be7 f8N+ Ke8 Rd2 Nbd7 b8B Ne4 b7 Qc5 Ba7 Qdc7 b8B Rb6 Qa6 Rg6 Bd4 Nc3 h8Q Nb3 Ngh7 Kf7 Bg1 Nd4 Kf2 e1N Bh1 Nf6 d7 Qd8 Bf4 Nef3 d6 Ne5 Ba8 Ndb5+ Ke1 Rc6 Rff2 Rh6 Rf3 Qa5 d8B Ng6 Bdb6 Nd7 Rd1 Qc4 Bbc5 Qd8 Qg7+ Ke8 Bd2 Nh8 Qg5 Kf7 Rf2 Ne5 d7 Rgg6 Qg2 Bd6 Qd5+ Ke7 Qg8 Qe6 Bce3 Bb4 Bf4 Kd6 Bc5+ Kd5 Kf1 Ke4 Rf3 Qb6 d8B Nd7 Kf2 Qb8 Bdb6 Qf6 Ba7 Qd8 f6 Kf5 Re3 Kg4 Re7 Bb7 Rg7 Qbc8 Rf7 Rc7 Ke3 Bg2 Kf2 Bh3 Ke1 Na2 Ke2 Rc6 Bcd4 Rc3 Bdc5 Rc1 Bde3 Qb6 Ne1 Qcb8 Rd6 Q6d8 Bd2 Qbc8 Nd3 Nac3+
nr3Nr1/4nqNn/2P1KQbB/Nk1NbN1R/1N1BBr2/5RQr/8/1n4N1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 Kd7 Ke5 a5 c4 a4 f4 e6 b4 d4 h4 a3 f6 a2 f7 g4 f5 d3 h6 g3 c6+ Kc7 h7 Kb6 f6 g2 c7 d2 c5+ Ka7 h5 Qe7 b6+ Kb7 h6 Kc6 b7 Ra4 b5+ Kd7 b6 Kc6 Qb3 d1R Bd3 Rd4 Rh5 Qe8 Nc3 Rf1 Nd5 Rb4 Be4 Kb5 Qg3 Na6 b8N Ne7 b7 Rf4 Nc6 Bg7 f8N Rb2 Rb1 a1N b8N Nb3 Na5 Nd2 c6 Rb4 Rb3 Nb1 Kd6 e5 f7 Bf5 c8N Bg6 Rf3 Nc7 Ne6 Na8 f8N Rg8 h8Q Rb3 Bf5 e4 h7 e3 Be4 e2 Na6 e1R Nab4 Ree3 Bd2 Bb2 Ng7 Be5+ Ke6 Rec3 Nh3 g1N Nd6+ Kc5 Ndf5 Kb5 Rd3 Nf3 Ng1 Nh2 Bc1 Ng4 Rf3 Nf6 Bd2 Rh4 Bg5 Rc4 Bh6 Rh3 Bc2 Rf4 Be4 Qd8 Ne8 Rb2 Qg7 Rb3 h8B Nh7 Qf7 Rb2 Neg7 Qe8 Qf6 Ka4 Nc2 Rb8 Ncb4 Kb5 Qfh4 Qd8 Ne8 Bc7 Bd4 Be5 Neg7 Qe8 Qf6 Qf7+
1BB1R3/1b1qnrqk/r2B1P2/nn6/1BQR1r1B/1N2BQ2/R3pB1b/3N1K2 w - - 0 1 illegal: No possible last move
n1BBQ2b/k1b3r1/N2p1BR1/1qnK1qBP/Q1BQ4/1Nq4b/7R/1B1Br3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 f5 Kd4 a5 h4 a4 b4 a3 c4 f4 e4 g4 e6 g3 c6 d6 h6 a2 e5 f3 h5 f2 c5 g2 h7 Ba6 b6 Ne7 b7 Rg8 h8B Nd7 b8B Qc7 b5 Kd8 b6 Kc8 b7+ Kd8 Qa4 Nc8 e7+ Ke8 Nc3 Bc4 Nf3 g1Q Bf6 Rg2 Nd2 Qd8 c7 Bg7 c6 Bh6 Nb5 Nc5 Rh2 Rg6 Nb3 Nb6 c8B Qh1 c7 Bd2 Bg4 Qd7 c8B Bd3 Bc7 Ba5 b8Q Qf3 Bcg5 Bf5 Bd8 Rg7 Bc4 f1Q Qa7 Q1e2 Rg1 a1B+ Nc3 Qc2 Rg3 Qf1 Bd1 Qb5 Rgg2 Rb8 Rg4 Na8 Kd5 Qe1 Na2 Qec3 Nb4 Bc7 Na6 Qf2 Rg1 Bh3 Qb6 Qf5 Rgg2 Kf7 e8B+ Kf8 Bg6 Bb2 Bh7 Ke8 Bf4 Rb7 Rg6 Ra7 B4g5 Ba1 Nb8 Ra5 Na6 Bb2 Qb4 Ra1 Qa4 Rb1 Bf3 Re1 Bd1 Qfc2 e6 Qf5+ Be5 Ba1 e7 Qe3 Ra2 Qf6 Re2 Nd7+ Qc5 Rf7 Rc2 Qff2 Bh2 Bh8 Rg7 Qc3 Be5 Qff3+ Be4 Qf5 Rg6 Rg7 Rd2 Nf8 Bb1 Ne6 Bb7 Kd7 Rh2 Qf1 Bef6 Qf2 Bc6+ Kc8 Bd7+ Kb7 e8Q Qf5+ Be5 Qb6 Bc8+ Ka7 Qf2 Nc5 Qd4 Qf4 Bef6 Qb5 Qa2 Qf1 Qa4 Qf5+
1q1n1NR1/2N1r3/NNkB3N/2n1BN2/2QbN1K1/pP2R3/BQ5r/nr3b1n w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 g5 h4 e5 d4 a5 h6 c5 f6 c4 f7 a4 h7 a3 b6 c3 h5 c2 d6 Ra4 b7 Nh6 d5 Qe8 Nc3 Nf5 h6 Rg8 h8B Rh4 h7 Nc6 b8N+ Kd8 d7 Kc7 d8N Nce7 d6+ Kb6 d7 Rb4 Qe2 Rg6 Ne6 Bh6 d8N Rg4 Bf4 c1R Nc7 Ng3 Rh3 Rg7 Nba6 Nh1 b3 Re1 Qc4 Rh4 Nge2 Nc6 Nd4 Rd1 Rg3 Bh3 Bd3 Bf1 Bb1 Rh2 Ba2 Qf8 Rb1 Qb4 Rb2 Rb1 Re2 Qb5 f8N Rf7 Ng6 Re7 Nf7 Bg7 Nh6 Nd8 Rg4 Bf6 Bg7 Qb4 h8Q Qb5 Bg3 Kb7 Nf4 e4+ Ke3 Qb6 Nfd5 Qa7 f4 Qb8 f5 Be5 Rh4 g4 Nb6 Bf6 Kf4 e3 Rg2 e2 Ne4 e1N Rh3 Nc2 Rg1 Na1 Rg2 Bh4 f6 Bg5+ Kf5 Be3 f7 Bg1 f8N Bf2 Bd6 g3 Nf6 Be3 Rg1 g2 Ne4 Bf2 Kf4 Be3+ Kf3 Bf2 Ndf5 Be3 Qe2 Kc6 Qg8 Bd4 Bge5 Nf2 Kg3 Nd3 Qc4+ Nc5 Kh4 Qb7 Qb2 Qb8 Rh1 g1N Kg3 Nf3 Rg1 Ne1 Kh4 Nd3 Rg8 Nf2 Kg5 Rc1 Re3 Nh1 Kg4 Rb1
1NNRN1n1/Nn1B1rbK/2prN1R1/N5n1/5P2/4q3/RQ3r1B/2N1Qbrk w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Ke4 e5 h4 g5 d4 a5 b4 c6 f6 g4 h6 a4 f7 g3 h7 g2 h5 a3 b6 a2 b7 Ra4 b5 Rb4 b6 Qd7 h6 Rb2 Na3 Na6 b8Q+ Qc7 b7 Bg4 Nb5+ Ke7 d6+ Kf6 d5 Qd8 d7 Kg6 d6 Be2 Qe1 Bh5 Ne2 g1R Na7 Rb3 Bh3 Ne7 Bf4 Rd3 Bh2 Kg5 f4+ Kf6 Nc1 Rg7 Rg1 Qb6 d8N Be2 d7 Ng8 Rg2 Rd6 Rg6+ Ke7 Kf5 e4 Ne6 e3 d8N Nc5 Nc7 Bf1 Ne8 e2 Kg5 Qb3 Bd7 Qe3 Kh5 Rf6 Qe5+ Re6 b8N Nb7 Qb2 Rd6 Rf6 Rg2 Rg6 Bg7 f8N Rf2 Nfe6 Qf3+ Kg5 Qe3 Qeb4 e1N Qe4 Nc5 Nb7 Nf3+ Kf5 Kf7 Na5 Nb7 Qeb4 Ng5 Q4d2 Nf6 Qe1 Rf8 h8R Ng8 h7 Ke7+ Rf6 Rf7 Kg6 Nh6 Rf8 Ng8 h8N Rd1 N8c7 Kd6 Rd8 Rdd2 Ne8+ Kd5 Bg1 Ke4 Bh2 Rf8 Nf7 Kf3 Nfd6 Kg2 Ndc8 Rf7 Qd4 Kh1 Qb2 Nf3 Kh7 Rd6 Rb1 a1R Rg6 Ra2 Ra1 Rg2 Qe5 Raf2 Qb2 Rg1 Ra2 Ng5+
2n2qN1/BQ1R1Nrr/p4nN1/NN1N1r2/BKPbBR2/Q5Nb/3k4/b1b5 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 b4 Ke5 h4 Ke4 f4 d5 h6 g5 h5 e5 b6 g4 h7 g3 c6 g2 c7 a6 b7 Ra7 h6 Qh4 f6 Qh2 b5 Be6 c8B Qh3+ Be3 Bc5 f7 Ra8 f8N Bg4 f5 Qf3 f6 Qf5 f7 Ne7 b6 Bh3 Ng6 Qg4 f8N Qf4 Na3 Ng8 Nd7 Qg5 Ne2 g1B Nb5 Bf5 Nf6+ Kf3 Rh4 e4 Ngf4 Bh3 Bf5 Qh5 Qc1 Qf7 Qa3 Nc6 b8Q Ra7 b7 Nce7 Ng3 Nc8 Rd1 Bd4+ Kb4 Ba1 c4 d4 Bd3 Qe8 Bc2 d3 Ba4 d2 N4d5 Qf8+ Bc5+ e3 Rf4+ Kg2 Qc7 e2 b8N e1B Nc6 Bgd4 Na5 Kg1 Qb8 Rg7 Qb7 Kg2 Be4+ Kg1 Rc1 d1R+ Rc3 Bef2 Rd3 Rf1 Rd1 Bfe3 Rd2 Nge7 Ng8 Rf3 Rd3 Kf2 Ba7 Ke1 Ndc7 Bdb2 Rd7 Bbd4 Nd5 Kd2 Ngf6 Rhg8 h8N Rh7 Ng6 Rgg7 Ng8 Rf1 Rg4 Rf5 Rf4 Rgf7 Rg4 Rhg7 h7 Bh6 h8N Rh7 Ne3 Rfg7 Rf4 Bg5 Nf7 Nd5+ Kb3 Nf6 Nd5 Ke1 Rf2 Bc1 Rf4 Ne7 Kb4 Kd2 Bb6 Nc8+ Bc5 Qe8 Ba7 Qf8+
N1r2RR1/5pnb/R4rB1/bB3Qn1/P1rRnR2/1R1NB3/3QKRn1/q6k w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a4 Ke7 d4 c5 h4 g5 e4 b5 a6 g4 h6 b4 a7 g3 h7 g2 e6 Kf6 h5 c4 d6 c3 d7 b3 h6 c2 e5+ Kf5 d5 Ke4 e7 b2 e8Q Qf6 d8R Qf4 e6 Bc5 d6 Nf6 d7 Nc6 e7 Qb8 Ra3 Qe5 Rb3 Qc7 Rh2 Ba6 Ne2 g1N Nf4 Bc4 Na3 b1R Be3 c1N Nb5 Qe5 Nc7 Rg8 h8R Nh3 h7 Ng5 Qd2 Kf3 Bd3 Rg6 Rf8 Bb4 Rf2+ Kg3 Rb8 Ba5 Qc8 Nd4 R8b4 Nde6 h8R Ng7 e8B Qa1 d8R Rh6 Bh7 Nd3+ Ke2 Rc1 Bb5 Ne1+ Bd3 Bd5 Rhg8 Be4 Rd7 Rb8 a8R Ng2 Ra6 Kh2 Na8 Bh7 Be4 Rc3 Nd3 Kh1 Bf5 Rc1 Rbf4 Rc4 Rdd4 Nfe4 Qd7 Rhb6 Bg6 Rf6 Qf5 Rbc8
r2B4/5R1N/k1NQ1RB1/1p2N1nn/1nP1rbq1/KN1NBQn1/N1N5/4q2b w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Kc3 Kd7 Kb2 Kc7 a4 g5 h4 b5 f4 Kb7 c4 e5 f6 d4 f7 d3 c6+ Ka7 f5 d2 h6 g4 c7 g3 a6 g2 h7 e4 h5 e3 a5 e2 f6 e1Q h6 Qee7 Na3 Nc6 Bd3 Nb8 Nc2 Bd7 Bg6 Qde8 Ne2 g1N Nf4 Qe4 Nd3 Bd6 f8N Be7 f7 Ne2 Rf1 Bc5 Ne6 Qf3 f8N Bg1 Nec5 Qf2 Nb3 Qd4+ Ka3 Bh2 Rf6 Nc6 c8N+ Kb8 a7+ Kb7 a6+ Kc7 Ne7 Rb8 a8N+ Kd8 a7 Qf4 Nb6 Kc7 a8Q Nb4 Na4 Bc6 Nc3 Kb6 Na2 Ng3 Qf3 d1N Be3+ Qd4 Rf7 Rd8 Qb8+ Ka6 Qd6 Nf2 Rf1 Nh3 Rf2 Nf6 Rf1 Rg8 h8B Rb8 h7 Nfh5 Bf6 Ng5 h8N Qg4 Nh7 Ra8 Rf2 Ne6 Bh4 Ng5 Rf6 Rf8 Nf7 Rh8 Nfe5 Rf8 Re6 Rf4 Rf6 Re4 Rf1 Nf5 Rf7 Bf4 Rf6 Nfg3 Rf7 Qd8 Rf6 Qb6 Rf7 Bd5 N7c6 Qd4 Rf6 Qc3 Rf2 Qe1 Rf7 Nh3 Bd8 Ng5 Qh1 Rd4 Nd7 Be5 R2f6 Bf4 N7e5 Be4 Qf1 Bh1 Qf3 Re4
R1r1Nq2/3RpR1n/RKbr1BB1/1b3nB1/2k1P3/QN4Q1/1R2R1q1/b2b3R w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 h4 Qd6 g4 Qb4 g6 Qd6 h5 Qb6 g7 Qc6 g5 Qg6 hxg6 Kd8 Ra5 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 Kd6 Kd4 f5 b4 h5 b6 a5 b5 f4 b7 h4 b6 a4 Nc3 c6 Qb3 f3 Qa3+ Kd7 Kc5 f2 d4 h3 d6 Ke6 d7 h2 d8R Nf6 g8R Rh3 d5+ Ke5 d6 Rd3 g7 Rh3 d7 Rh5 g6 Nh7 Nf3+ Ke6+ Nd5 Rh6 Nd4+ Ke5 Bg2 f1B Nb3 Ke6 e3 Bb5 Nf6 Ke5 Rh8 Ke6 g8R Bg7 Rf1 h1B Be4 Bf3 Bb1 Bd1 Ne8 Bc3 Ra2 Ba1 g7 Ke5 Raf2 Rd6 Re2 Ke6 Rf7 Ke5 Qa2 a3 Bg6 Ke6 Qb2 a2 Qa3 Ke5 Rgf8 Ke6 g8Q Ke5 Bh5 Ke4 Rf6 Kd3 e4 Kc3 Bg6 Kd3 Nc7 Kc3 Rde8 Kd3 d8R Bd7 Bg5 Kc3 Qg7 Kd3 R8f7 Kc3 Qa6 Kd3 Kb4 c5+ Ka5 Bc6 Rd7 c4 Ref8 c3 Ne8 c2 Rfg8 Nf8 Rh1 c1Q Re6 Qb2 Qa7 Na6 b8R Kc4 b7 Nb4 Kb6 Nc2 Qa3 Nh7 Qe5 Ne3 Qg3 Nf5 Rh8 Ra5 Ra8 Qg7 b8B Qf8 Rhh2 Ra7 Rb2 Rc7 Rhe2 Rc8 Bf6 Rd4 Bf4 Rd2 B4g5 Rd6 Rbd2 Be5 Rb2 a1Q Bf4 Qa2 Be3 Ng5 Rh1 Nh7 Beg5 Ba4 Rbd2 Ba1 Rb2 Bab5 Re5 Ba4 Rea5 Bab5 R8a6 Qb1 Ra8 Qc2 R5a6 Qd2 Re3 Qh2 Ree2 Qg2
1B5K/R4b2/1R4nn/3p2NB/nb1NQ1bq/1BnPqrB1/6QB/k1B1BR2 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 b4 hxg5 b3 axb3 Na6 b4 Nb8 b5 Bg7 Rh5 Bh6 Rh1 Bf8 b4 a5 c5 a4 c6 Na6 b6 Rb8 b5 Rb7 cxb7 Nb8 Ke2 Kf7 Kd3 c5 Ke4 h5 Ke5 h4 f4 c4 g4 a3 d3 a2 g6+ Kg7 g5 e6 Nh3 c3 Qe1 c2 Nc3 Ba3 f6+ Kf8 f7 Kg7 f8R Rh5 f5 Bb4 Ne2 Nh6 Rf6 Qe8 Nd4 Nc6+ Ke4 d6 b8B e5 b7 Ne7 b6 Be6 Rg1 Bf7 Be2 Qh8 Rf1 Qh7 Ng1 h3 Ngf3 h2 Re6 h1B f6+ Kf8 Bc7 Rh3 b8B Ke8 b7 Kd7 Qh4 Qh8 g7 Ng6 Kd5 e4 g8Q e3 Qe4 Qh7 Bd1 e2 Ba5 e1Q Qg7 Nh4 g6 Qe3 Ng5 Rf3 Qg8 Bg2 g7 Ng6 Bbc7 Bh3 b8B Bg4 Be2 Be8 f7 Qh8 f8B Bf7 Be7 Qh7 Bf6 Qh8 Be5 Qh7 Ba3 c1N Bg3 Qh8 Bd1 Ne2 Bc1 Qh7 Qf8 Qh8 g8B Qf6 Qg7 Qe7 Rb1 a1N Rb3 Qd8 Ra3 Nb3 Ra2 Nc5 Bb3 Ba3 Bae1 Bb4 Ra7 Na4 Bh7 Nf8 Bg6 Nec3+ Kc4 Qf6 Bh5 Ng6 Bh2 Nb5 Kd5 Qff4 Nf5 Qg3 Qb2 Qh4 Qg2 Nbc3+ Kc4 Qf4 Kd4 d5 Bd6+ Kc6 Rf6 Qd2 Bdg3+ Kb5 Re6 Nh8 Ke5 Ng6+ Kf6 Qe3 Kg7 Be7 Nd4+ Kb4 Bcd2 Ka3 Rb6 Kb2 Bc1+ Ka1 Kh7 Bb4 Kg7 Nf8 Kh8 Ng6+
k1N2R1R/B4R2/R2KQP1p/n1n2r2/b1BNn1Rb/3r1p1b/QR4Q1/2q1R3 w - - 0 1 illegal: No proof kernel
1q1BN3/5bbR/1r1R1n2/1KB1p3/6QP/r4BnN/1BB1p1B1/Nq1rkBQ1 w - - 0 1 illegal: Other
kr2qQ2/B4Qnn/1bb2qRB/P1B2q2/Br1B1p2/1B4N1/1p2RN2/BK3N2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 h4 c5 a4 Kc7 d4 g5 Kd2 f5 Kc2 b5 e6 Kb7 e7 g4 e8N c4 e5 c3 a6+ Ka7 e6 b4 h6 g3 d6 g2 e7 Qc7 d7 Qb6 d8B Qb7 a5 Qd5 h7 Bd7 h5 Qd6 h6 Qh2 d5 Qh5 d6 Qh3 Ra2 Be6 d7 Bc4 Qd5 Qh4 Nh3 g1Q Ng7 Qgg4 e8B Bb5 Nf2 Qgg3 Qf7 Be7 Nh5 Qe3 Rg1 Bc6 Bc4 Qeg5 Nd2 b3+ Kb1 Bf8 Be7 Nf6 d8B Nbd7 Ng3 Nh5 Ndf1 Ng7 Re2 Rb8 Bb6+ Ka8 a7 Nf6 Bec5 Qgh5 Bg5 f4 Bd5 Rg8 h8B Nh7 Bc4 Be7 Bd7 Bd8 Bd5 Ne6 Bhd4 Ng7 B5e6 Re8 Bc4 Re4 Rg2 Bd5 Ba4 Bc6 Rg1 Qh3 Bd5 Qf5 Bc4 Nf6 h7 Qh4 h8B Nh7 Bh6 Qhf6 Ngh1 Bc7 Rg6 Bd8 Nhg3 Bc7 Ba3 Bd8 Bbc5 Bc7 Bb2 Bb6 Ba1 b2 Bcb3 c2+ Ka2 c1Q Be3 Qd2 Kb1 Qdd7 Bed4 Kb7 a8Q+ Kc8 Be3 Qe8 Bed4 Bc7 Ba7 Bb6 Bc5 Rb4+ Rc2 Qfe7 Qb7+ Kd8 Qg8 Nh5 Bf6 Ng7 Bfd4 Qef6 Qbf7 Kc8 Qff8 Kb7 Qgf7+ Qfd7 Rd2 Ka8 Re2 Qdf5+
2B1B1BN/4P1r1/1r1q2B1/3Q1NB1/2RB2K1/3n2Q1/p1npRBbb/1qr1Nk2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 h4 Ke4 b4 g5 b6 a5 c6 f5 b7 d5 e6 g4 b5 d4 c7 a4 c5 a3 h6 a2 h5 d3 h7 Qd5 b6 Ra4 c6 Ra6 e7 Kd4 e8B Ra3 e4 Nd7 b8Q Qe6 h6 Bb4 e5 Bb7 c8B Qd6 c7 Qf8 e6 Bf3 b7 Rb3 e7 Ngf6 Bg5 Bg2 Nd2 Nc5 Nc4 Rg8 h8B Rg7 h7 Nd5 Ne3 Qf6 Rh2 f4+ Kh4 f3 Nf5+ Ke4 Rc1 f2 Be6 g3 c8B Ne3 Nf3 Nc2 Bg8 Qd6 Kg4 d2 Ne1 Nd3 Qf3+ Ke5 Be2 f1Q Qa8 Bc3 b8B Rb6 Ba7 Qh1 Qab7 Bd4 Qd7 Bg1 Qf2 Ke4 Qb5 Rf7 Bd4 Rg7 h8N Qe6 Rh6 Bh2 Qd7 Qd6 Re6+ Kd5 Qf4 Kc4 Bf2+ Kc3 Bf3 Qg1 Re2 Qf1 Be4 Qh1 Rb1 Qg1 Rb4 Qh1 Nf3 Qb1 Ne1 Rb5 Qb7 Nc5 Nf3 Bh1 Ne3 g2 B4g6 g1R+ Qg3 Rc1 Re1 Bg2 Nf5 Kd3 Rc4 Ne6 Bae3 Rb6 Bd4 Nc5 Re6 Re1 Qd5 Rc1 Ne5+ Ke2 Nd3+ Kf1 Ne1 Nd3 Re5 Qb8 Re2 Qd6
Q7/4BBbQ/1R2Bpnr/1K5n/N1n3Qq/1rp2BPn/BR2B3/1B3bkN w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 a4 Kd7 d4 b5 Kd2 c5 Kc3 h5 e4 h4 g3 c4 d6 Kc6 Kb4 h3 e6 h2 d5+ Kb7 g6 f6 a6+ Kb6 e5 Qc7 g7 Qe7 a7 Rh3 a5+ Kb7 a6+ Kb6 Ba3 Nh6 g8B Rh4 Nh3 Qb7 e7 Bg7 e8B Rh5 d7 Ng4 d8Q+ Qc7 d6 Nf2 e6 Rh8 e7 Bb7 d7 Rh6 Bef7 Bg2 Be2 Bf1 e8B Kc6 Bg6 Qf4 Qe7 Qh4 d8Q+ Nd7 Bef7 Ne5 Nc3 Nfd3+ Ka5 b4 Ra2 b3 Na4 c3 Rb2 Nf4 Nf2 Nh5 Bb1 Ng6 Be6 Nhf4 Bgf7 Nh5 Rg1 h1N Q1d4 Rb8 Qg4 Rb6 a8B+ Rb7 Nd3 Nf2 a7 Nh3 Bb4 Ng5 Nf2 Nh3 Rc2 b2 Nh1 N5f4 Bba2 b1N Rb2 Nd2 Qdf8 Nh5 Qh8 Bg2 Rgb1 Bf1 Qef8 Nc4+ Ka6 Kc7 Be7 Rb3 Be4 Ra3 B4f5 Kc6 Qh7 Na5 Qfg8 Nc4 a8B+ Kc7 Bd8+ Kd6 Kb5 Ke5 Bfe4 Kd4 Be7 Ke3 Bac6 Ng1 Qa8 Nh3 Rb4 Kd2 R1b2+ Ke1 Beb1 Bg2 Bd1 Kf1 Be2+ Kg1 Bcf3 Bf1 Ka6 Na5 Rb6 Nc4 Kb5 Rb3+
Q4r1B/2kBP3/1bBN3R/1q1bb2K/5n2/Q2NpRrB/3B1p2/nBB2Qb1 w - - 0 1 illegal: No proof kernel
B1q2B1N/1n2p1RB/rN5N/QQP1R1n1/np4B1/Bk4b1/3K2r1/1BB3nb w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 f4 Kf7 a4 d5 c4 g5 h4 b5 a6 b4 a7 g4 h6 d4 c6 g3 h7 d3 c7 g2 f6 Ke6 c5 Kd5 a5 Kc4 f7 Qd6 f5 Qg6 h5 Qg5 f6 Qg6 a6 Bg4 c8B Qh6 Ne2 g1N Nd2+ Kd5 Nd4 Qg5 h6 Nc6 Qa4 Bh3 Bg4 Qh5 Nf5 Ne2 Nc4 Nd8 Kd2 Qh4 Rg1 Rb8 a8B+ Nb7 a7 Rd8 Qb5 Bg7 f8Q Rd6 f7 Nf6 Qd8 Bg2 f8B Bh1 Qda5 Rg8 h8B Ra6 h7 Qh3 Nh6 Kd4 Rg2 Ng1 Ba3 Kd5 Re1 Kd4 Re5 Ne4+ Ke1 Kc3 Nb6 d2+ Kd1 Nd8 Bd3 Nb7 Bb1 Kb3 Bc1 Bf6 Bhg7 Bh4 h8N Ng5 Bh7 Nd6 Bae4 Bg3 a8B Nb7 Bf6 Rg7 Bb1 Rg6 Be2 Qc8 Bg4 N1h3 Ke2 d1N Kd2 Nc3 Rg1 Na4 Ba3 Ne6 Bg5 Rg8 Kd3 Rg6 Bgc1 Neg5 Kd2 Rg8 Rf1 Rg6 Rf7 Ng1 Rg7 Rf6 Kd1 Rf2 Ke1 Rg2+ Kd1 Bf2 Kd2 Bg3+
4NQ2/nQ6/1Q1pB3/r1nN3p/Rr1bNQQR/qQp2Q2/1bK1P3/k1B2b2 w - - 0 1 illegal: No proof kernel
3B1K1B/B4n2/B2RBn2/2BQ1bb1/2b1Np2/n2RqP2/1QB1k1pp/1R1r1N2 w - - 0 1 illegal: No proof kernel
1R2nqn1/3r3K/BpR1p1R1/1p4R1/kN1Q1Br1/1q1QpB1R/bP4RN/5R2 w - - 0 1 illegal: Other
4k3/1B1N1b2/B3B3/n1R2q2/NR2q2R/1pQ1q3/p2BPBNN/KN1qn3 w - - 0 1 legal: proof: b4 h5 g4 e5 gxh5 d5 a4 d4 f4 d3 fxe5 Nh6 cxd3 Qe7 d4 Ng8 d5 Qd8 b5 a5 b6 Ra7 bxa7 g5 a8B Rh6 Kf2 Rb6 Ke1 Rb5 axb5 Bb4 Qc2 Bc5 Qd1 Ba7 b6 Qd7 bxa7 b5 Ba3 Qd6 Bc1 Qd8 d4 c5 Kd2 f5 Kc3 g4 Kb2 b4 h4 a4 e6 b3 e7 g3 h6 c4 h5 g2 d6 f4 d7+ Kf7 e8B+ Kf8 d5 f3 d6 f2 h7 Ne7 h8B Qb6 d8N Qe3 h6 Ng8 h7 Qe5+ Qd4 Bd7 Nf3 g1Q Bb7 Qg4 a8N Qeg5 Qc3 Q5f4 Bd4 Qgg3 h8R Be6 d7 Qf7 R8h5 Qf5 Nb6 Qh4 Nh2 Bf7 Bd2 Qg3 Bh3 f1Q Bf2 Qh4 Nc6 Qd1 d8N Nh6 Ne5 Qhe4 Bb5 Nc6 Ne6+ Ke8 Ned7 Na5 Nf4 Ng4 B5a6 Ne3 Ng2 Nc2 Ra3 Ne1 Ka1 Nd3 Ra2 a3 Na4 Ne1 Rc2 a2 Rh4 Qb5 Be6 Qbf5 Qg3 c3 Rc1 Qe3 Rb4 Qdc2 Qe5 Qce4 Qc5 c2 Qc3 Ke7 Nf3 Kd8 Rh4 Ke8 Nh2 Nf3 Rg1 c1Q Rh1 Qcc2 Rc1 Ne1 Qd3 Qd1 Rc5 Qg6 Qc3 Qgf5
B3R1bN/Rr2B1B1/qR4NN/2Bq1b2/2rP2rr/3R1B1k/5Q2/1R1rn1K1 w - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 d4 h4 d3 f4 g4 f6 Bh6 cxd3 Bg5 hxg5 Nc6 d4 Kf7 d5 Nd4 Nh3 Nf5 exf5 Kf8 Ng1 Ke8 Kf2 Kd7 b4 e5 f7 c5 f8N+ Ke7 d6+ Kf7 g6+ Kf6 d7 a5 b6 h5 b5 a4 g7 h4 b7 c4 b8R h3 b6 a3 b7 e4 Ng6 h2 Qc2 c3 Bg2 a2 Ne2 Nh6 g8B Qc7 d8R Bd7 Ng3 Ra6 Na3 Ra8 Nc4 Qa5 Ba3 Ra7 Bd5 Nf7 Bf3 Ne5 Bc5 Rh4 Rhb1 h1B Nd6 e3+ Kg1 e2 Nf7 Nd3 Nfh8 Ne1 d4 Be6 Re8 Bg8 Rbc8 Qd8 b8R Rb7 Re3 Bg2 Rd3 Bh3 Rb6+ Qd6 Re8 Qe6 Rab1 a1Q Ra8 Qa6 Ra7 Qc6 Qd2 c2 Qe3 c1R Qf2 Rc4 Bde4 Kg7 f6+ Kh6 f5 Kg5 f7 Qd6 f6 Qd5 Nf5 g3 f8B g2 Nh6 Bf5 Ne5 Kf4 f7 Kg5 Bg7 Kf4 Qf1 Kg3 f8B Kh3 Qf2 Nc2 Bfe7 e1R+ Qf1 Rd1 Neg6 Ne1 Qf2 Qd6 Bc6 Qd5 Qb2 Rc7 Ba8 Rb7 Kf2 g1R Qe2 Rgg4 Qb2 Re4 Kg1 Ref4 Qf2 Rfg4+
R4r2/3N2q1/QqNB2B1/1q1n3R/2N1qr2/5nRR/R1N3P1/qkBnK2N w - - 0 1 illegal: No possible last move
1NB3B1/3r3K/2r1N2R/1N6/1n2rB1r/NkBB1n1R/1q1P1qq1/rQR1N3 w - - 0 1 legal: proof: c4 e5 a4 g5 f4 d5 cxd5 b5 axb5 f5 g3 g4 fxe5 f4 h3 f3 Ra3 Bh6 Ra1 Bf4 gxf4 g3 Qc2 Nc6 Qd1 Bg4 hxg4 Nb8 b4 Kf7 e4 c5 b6 h5 g5 a5 f5 h4 b5 h3 d6 h2 e6+ Kf8 f6 g2 Kf2 a4 Ke3 a3 Kf4 f2 Kf5 c4 Kg6 a2 b7 c3 e5 c2 b6 Ra6 d7 Qe7 d8N Qd6 f7 Ke7 f8R Qb4 Bb2 c1R Rf6 Ra7 Nf3 g1R Bd3 f1Q Na3 Ra4 Bc3 Qc5 Ne1 Na6 b8B Rgg4 b7 Rc2 Rc1 a1R Kg7 Qd6 Rh6 Rad4 g6 Qb6 Bc7 Qe2 b8N Nb4 Rh3 Rhh4 Bd6+ Ke8 e7 Nf6 Ne6 Nd7 Kg8 Qf3 g7 Qf2 Bc7 Rge4 Bd6 Rhf4 Kh7 Kf7 e8N Qb5 Rh6 Rh4 N8c7 Qb6 Ncb5 Rd5 Rg1 h1Q Rg3 Qhg2 Rh3 Rdd4 Bc7 Ke7 g8B Rd6 Bb2 Rcc6 Bc3 Rd5 Qb3 Rdd4 Qb1 Qb7 Nc5 Rdd6 e6 Ne5 Rd1 Rdd4 Rc1 Nf3 Be5 Rd7 Bf4 Kd8+ e7+ Kc8 Nd6+ Kc7 Ne6+ Kb6 Ndb5 Ka5 Nd6 Qbb6 Ndb5 Rd5 e8B Ka4 Bd7 Rdd4 Bc8 Rd7+ Bg7 Qbd4 Nf8 Qb2 Ne6 Rdd4 Bh8 Kb3 Bhe5 Rd8 Bc3 Rd7+
K5r1/1NNkbB1R/1PN3n1/5b1r/R2Nq1Rb/2Bn2p1/1B5B/1BN2nQ1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 Ke2 c5 Kf3 g5 Ke4 e5 d4 g4 f4 c4 h4 c3 d6 c2 Kd5 e4 b6 e3 a6 e2 h6 e1N h5 Kd7 f6 Bg7 f7 Nd3 f8B Bf6 a7 Nc5 h7 Be7 h6 Nca6 f5 Bg5 f6 Be3 f7 Qe8 Ra4 Bf2 Bd3 Bg3 Ne2 Bh4 Nd2 Bd8 Rg1 Nc5 Nf3 Nca6 Bb2 c1B Bb1 Bcg5 Nc1 Bf4 Rg3 Bc7 Qg1 Kd8 d7 Qe2 Bd6 Qe1 f8N Qe3 Rg2 Bg5 Bh2 Qe8 Ne6+ Ke7 d8N Kd7 Nb7 Bg3 Nc7 Nc6 Bc3 Rb8 a8B Nab4+ Kc5 B3h4 d5 Nc2 d6 Qe3+ Nd4 Qd2 Kb5 Nce7 Ka6 Qd3+ Ka7 Nf6 Rg3 Rg8 h8B Qe4 h7 Nh5 Bg7 Ne1 h8R Bf6 Rh7 Ng6 Bb2 Bfg5 Bh6+ Be7 Rg7 Nd3 Nd8 Rh8 Bd5 Rh7 N8c6 Rh8 Rg2 Ng3 Bd2 Nf1 Bf7 Rh6 Rh7 Rh5 Rf2 g3 Bdc3 Ne1 Rf4 Nd3 Ne5+ Kd8 d7 Bef6 Rg4 Ke7 d8N Bf5 Nec6+ Kd7 Nb7 Rc8 Ndb3 Rg8 Nbd4 Bd8 Ka8 Bde7+
bq4Q1/2P1qb1b/4R1B1/2kp1R2/B4R1N/r2R1BB1/1N1n1q1N/2nR1B1K w - - 0 1 legal: proof: d4 b5 g4 e5 f4 c5 fxe5 a5 dxc5 f5 a4 g5 axb5 f4 h3 Bh6 h4 Ra6 Nf3 Rf6 Ng1 Rf5 gxf5 g4 Ra4 Ne7 Ra1 Bg5 hxg5 Ng8 Kf2 Ke7 Kg2 h5 c4 d5 b4 a4 e4 g3 e6 h4 b6 a3 e5 a2 b5 Rh7 f6+ Kf8 f7 Ke7 f8R Qc7 b7 Qa5 c6 Qb6 c7 Qc6 g6 Nf6 c5 Rh5 b6 Rg5 g7 Nbd7 b8R Ng4 b7 Qa6 c6 Nc5 Rf5 Qa3 g8N+ Ke8 e7 Nh2 Nf3 Qa6 Nh6 Nb3 Nc3 Qa3 Ng4 h3+ Kg1 g2 Na4 Qd6 Nh4 f3 Bf4 Nc1 Nb2 Rh5 Rb1 a1Q Bg3 Qaa3 Ra1 Qab4 Ra3 Qd8 Qe2 Be6 c8B Bf7 c7 Rh6 Rba8 Ra6 Rd3 Ra3 b8R Qdd6 Ba6+ Kd7 e6+ Kc6 e8B+ Kc5 Rb6 Qe7 Ba4 Qb3 Qe1 Qb4 Be2 Nf1 Nh2 Nd2 Rf8 Qb3 Bd1 Qb5 Qe4 Qbe8 Qg4 Qb8 Nf1 f2+ Kh2 Qg5 e7 Qe3 e8B Qe7 Ne3 f1B Bf3 Be2 Qg8 Bd1 Kg1 Bb3 Nf1 h2+ Kf2 Bc4 Re6 Bb5 Rg1 h1B Nh2 Bd7 Rd1 Bc6 Kg1 Ba8 Rf4 Bg6 R8f5 Bh5 Ng4 Bf7 Kh2 Bh5 Bg6 g1Q+ Kh3 Qf1+ Kh2 Bg2 Bc4 Qf2 Ba6 Bf1+ Kh1 Bh3 Nh2 Bf1 Rb3 Bd3 Bc4 Be4 Bf1 Bb1 Rd3 Bc2 Bh7 Bf7 Bg6 Ncb3 Bh7 Bg6 Rfe5 Qbe8 Rdd4 Qb8 Rg5 Bcf5 Rd3 Bf7 Rh5 B5g6 Rhf5 Nc1 Qg7 Bg8 Qh8 Be8 Bg6 Bh7 Qg8 Bf7
BR1r2RK/1nk1B3/2qRrBN1/1P2NR2/q7/2bpQ1BR/1B2N2p/2bq4 w - - 0 1 legal: proof: g4 g5 h4 b5 f4 f5 gxf5 c5 a4 g4 axb5 c4 e4 c3 f6 Na6 e5 Qc7 f5 Kd8 dxc3 Qb8 c4 Nc7 c5 Qb6 Bd3 Ne6 Bf1 Ng5 hxg5 Bb7 Ra4 Bd5 Ra1 Bf7 e6 Kc7 exf7 Qb8 Ra6 Qc8 Ra1 Qd8 Kd2 h5 Kc3 d5 Kd4 a5 Ke5 a4 c4 g3 b4 h4 c6 e6 c5 g2 b6+ Kc8 c7 h3 b7+ Kd7 c8R a3 b8B d4 g6 d3 g7 a2 b5 Rh7 Na3 Rh5 Qe1 Ra7 Ne2 g1B Bg2 Ra5 Bb2 Ra7 Nc4 Ne7 g8R Bh6 f8R Bhe3 f7 Rh6 f6 Rh7 Ba8 Rb7 Qd2 Bg5 Qe3 Qb6 Rc6 Rh5 Rf1 a1Q Rf5 Rh6 Bd6 Rh8 Rb8 Nc8 f8B Qa4 f7 Bf2 Bfe7 Be1 Bc7 Nd6 f8B Ra7 Rh2 Nb7 Bg7 Ra6 Rh1 Bf4+ Kf6 e5 Kg6 e4 Bgf6 Bh6 Bg3 Bc3 Rd6+ Kc7 Ne5 Qc6 Rh2 Bf4 Kg7 Rb6 Rf2 h2 Rf3 Qe8 c6 Ra6 Qd4 Bc1 Qf2 e3 Qg1 Kb6 c7+ Qc6 c8N+ Kc7 Qe1 Rh4 Qg1 Rd4 Kh8 Rd5 Rh5 Rb6 Rff5 Rd4 Rh3 Rd5 Nd4 e2 Qe3 e1Q Ne2 Qh1 Bf8 Qhd1 Ne7 Ra6 N7g6 Rb6 B8e7 Rd4 Re6 Rd8 Rd6 Qcc4 Rd5 Re6 Rd6 Qc6
nBRNn2b/3Q4/N1Np1Nr1/1K1n1P2/1Rqpq1B1/1B6/bB1R4/1B1N1k2 w - - 0 1 illegal: Other
5n2/NRBQ4/Rb2N1R1/6rP/nBR2r1B/1Rb1Bp1B/1N3bpn/k1K5 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 h3 g5 Ra3 h5 Ra4 Qd6 Ra1 Qg6 Rh2 h4 Rh1 Qh5 gxh5 g4 Ra3 g3 Ra1 Bg4 hxg4 Kd8 Ra6 Ke7 Ra1 Ke8 e4 Ke7 d4 c5 Kd2 a5 b4 f5 d6+ Ke6 g5 f4 b6 c4 b7 h3 d7 a4 d8N+ Ke7 e6 Kd6 e7 f3 e8R a3 d5 h2 b5 Kc5 b6 Kb4 d6 a2 d7 Bh6 e5 Nf6 e6 Ra5 e7 Nc6 b8B Nd5 b7 Ne3 g6 Ra3 g7 Rh7 g8R Bg5 Ne2 Bh4 Bc7 Ra4 b8B Rg7 Na3 Nd5 Nb5 Nd4 Ne6 Nb6 d8B Rg5 Bh3 g2 Nec3 Bf2 Rg1 h1N Rg6 Ng3 Na7 Nde2 Rh8 Nd7 e8R Nf8 Re7 Nf1+ Kc2 Bb6 Be3 Ka3 Qd7 Nh2 Nd1 c3 Nb2 Rf4 Rab1 a1B Rhh6 Ka2 Rgc1 Nh7 Kd1 c2+ Kd2 Nf8 Reh7 Rgg4 Bh4 Nc3 Bd6 Na4 Bb4 Rg5 Bc7 Rb5 Nd1 Bg7 Rb3 Rg5 Nb2 Bgd4 Rd1 Bc3+ Kc1 Ka1 Rd4 Be1 Rc4 Bf2 Kd2 c1B+ Kc2 Bd2 Re7 Bc3 Kc1 Rc5 Rg3 Bce1 Qb5 Ba5 Bd8 Nd7 Nc7 Nc3 Ra6 Na4 Ne6 Bb6 Rg6 Nf8 Rb7 Rcf5 Bc7 Bc3 Qd7 Rg5
3KbkB1/1rn4b/2NN3R/5PBB/Q1R1pN1B/R1nR1rb1/1Rp5/5nB1 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Rh8 g5 Qd6 g7 Ra8 Bg2 Qg6 hxg6 Ng8 Bf1 Nb8 Ke2 h5 Ke3 e5 Ke4 c5 d4 a5 b4 c4 b6 c3 d6 a4 Kd5 e4 b7 h4 d7+ Ke7 d8R h3 b5 h2 b6 a3 Nd2 a2 Be2 Rh5 Qa4 c2 Nc4 Nc6 b8N Nh6 g8R Rh3 b7 Rh4 g7 Na5 g6 Nc6 Nh3 Rf4 Bh5 Rg4 Nf4 Ra7 Nd6 Rg3 Be3 Bd7 Bg1 Nb4+ Ke5 Na6 d5 Rh3 Rb1 a1N Rb2 Nb3 Rc8 Nb4 Rc4 Be8 Nc6+ Kd7 Kf6 Na2 b8B Nc5 Rh8 Rb7 g8B Nc3 g7 Ne6 Bc7 Rg3 Bd8 Rf3 Be7 Nc7 Rh7 Nf7 Rh6 Ne5 Bd8 Bg6 Be7 Bh7 Bd8 Ng4+ Kf7 Ne3 Bg5 N7b5 Bh4 Kc7 Ke8 Nf1 Be6 Ne2 g8R Nec3 Rg3 Bg7 Bg8 Be5 Nf7 Kc8 d6 Nc7+ Ke7 Rf2 Rd3 Rf3 Nd5 Bg3 Nf4 Ne8+ d7+ Kc7 d8B+ Kc8+ Kf8 Nc7 Nd6+ Kd7 Kf7 Ne2 Kf6 Nc3 Nf7+ Ke8 Nd6+ Kf8 Bg5 Ne8+ Ke6 Nc7+ Kd7 Rb5 Bh4 Rb7 Bdg5 Rb5 Bf2 Rb7 Rg1 h1B Kd8 Bg2 Rh1 Bh3 Bg1 Bg4 Rh2 Nb1 Ra3 Nc3 Re2 Rb5 Rd2 Rb7 Bg6 Bh5 Be8 Bf7 Rd3 Be6 Bef7 Bd7 Bh5 Be8
2NBR1r1/q1N1P2k/p1BRp1N1/rnQ5/8/R4R1B/p2Kr2r/N1N2bR1 w - - 0 1 illegal: Other
2R1Rr2/Pn1R2Rr/Qr4N1/1n3kN1/1B1bb3/1NqnB1n1/2K4n/1N1RN2B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 b5 h4 e5 a4 g5 f4 c5 f6 e4 h6 c4 f7 g4 d6 Ke6 d7 b4 a6 c3+ Kc2 g3 a7 e3 h7 e2 d5+ Kf5 a5 e1R h5 g2 a6 Be7 f8R+ Nf6 d6 Re3 h6 Kg6 f5+ Kg5 Nf3+ Kg4 Qd3 g1N Re8 Ng8 f6 Qa5 d8R Nd7 f7 Ngf6 f8B Ne2 Bg2 Nc5 d7 Bb7 Rd1 Re6 Bh1 Ng3 Ne1 Rb6 Be3 Be4 Ra2 Rc8 a8R Kf5 a7 Ng4 Rb8 Rc7 Rbc8 Nb7 Ra4 Rg8 h8N Bf6 h7 Nh2 Ng6 Bd4 h8N Qe5 Bc5 Rf8 Nf7 Qf6 Ng5 b3+ Kc1 b2+ Kc2 Qh8 Rc4 Qe5 Bb4 Qa5 Rc6 Qa1 Rce6 Rcc6 R6e7 Rc7 Na3 b1N Rg7 Nd2 Nb1 Nc4 Kb3 Ncd6 Qa6 Bc6 Kc2 Nb5 Ree7 Bf3 Rde8 Bc6 d8N Be4+ Kc1 c2 Nde6 Rd7 Nc5 Rc7 Kd2 c1N Nb3 Nd3 Rd7 Rc4 Rd6 Rc7 Rdd8 Re7 Rd7 Ref7 Kc2 Re7 Rg8 Rh7 Rgg7 Qc3+
RQ2K1bk/bB2B3/r2r2B1/3B2rN/4B1nN/R1nP2r1/2NN1q2/N1q1rR2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 a5 Ke3 h5 Kd4 f5 b4 Kf7 g4 Kg7 e4 c6 e6 a4 Ke5 f4 b6 f3 b7 a3 g6 f2 e7 a2 e8N+ Kh6 g7 Kh7 g5 h4 d3 h3 d6 h2 b5 c5 d7 c4 Ke6 c3 Kf7 c2 b6 Ba3 e5 Ra5 e6 Be7 Bg2 f1R+ Nf3 Nf6 Ba3 c1Q g6+ Kh6 g8B Ra6 g7 Bb4 e7 Re1 Rf1 h1R Qb3 Qe3 Bh7 Qc5 g8B Ra7 Ng7 Ra6 e8B Rh3 Nh4 Qe3 Nh5 Nc6 b8N Bc3 b7 Ra5 Na6 Qf2 b8N Rg3 Nb4 Nd4 N8c6 Ne2 Nd4 Rag5 Nd2 Qc7 Bf3 Qc6 d8R Be6+ Kf8 Bc4 Ra8 Ng4 Qb2 Qc8 N4b3 Bd4 Bf5 Be6 Bc6 Bf7 Bfe4 Ba7 Qe5 Qc7 Bb7 Qc1 Qb8 Nc3 Nc2 Rh7 Be7 Rh8 Rb1 a1R Rb2 Ra6 Ra2 Rh7 Ra3 Rhg7 Nba1 R7g6 Bf5 Rgd6 Bfe4 Be6+ Bef7 Bd5 Ke8 Bc4 Bfg6 Bd5 Nf6 Kg7 Nh5+ Kh8 B8f7 Be6 Bg8 Bf5 Ba2 Be6 Bad5 Bg8
k3rNRQ/1r1qBnbN/nB1R1P1B/3r3b/R4B2/2b5/2bR3N/q4RKB w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 h5 d4 e5 f4 a5 Kf2 c5 b6 e4 b7 Kc7 g6 h4 g7 c4 g5 c3 f6 a4 f7 a3 d6+ Kc6 d7 a2 b5+ Kc7 f5 h3 g6 c2 d5 h2 b6+ Kd6 f6 Rh7 Nf3 Rh3 Bg2 Be7 f8N Rh6 Nbd2 Ra6 Ng5 Rh4 Qh5 Qc7 d8R+ Qd7 Qh8 Ra7 Ndf3 Rh5 Rf1 h1B Ngh7 e3+ Kg1 e2 Nh2 e1R Bh6 Na6 b8B+ Kc5 b7 Kb6 d6 c1B Be4 Rd5 Bc7+ Kc6 b8B Kb7 Ba5 Bb2 Bb6 Bc3 Rd1 a1Q Rd2 Bf3 B8c7 Bd1 Bh1 Ka8 Bb8 Qe8 d7 Rb7 Bbf4 Beb4 Rg2 Bc2 Rd2 Ne7 g8R Nf5 Rg7 Nd6 Re7 Ba3 g7 Nf7 g8R Bd6 Re4 Qe6 Ng6 Bf8 Ra4 Bg7 Ngf8 Qh3 Re8 Re3 d8B Bg4 Re6 Bh5 Rd6 Re8 Be7 Qd7
R2N4/qbRB1nNN/2nn1NPb/N5R1/2Qrp2K/1R1b1kBB/3r1rR1/8 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 Kg3 a5 b4 e5 d4 h5 f6 c5 g6 c4 f7 a4 f5 a3 g7 a2 b6 c3 f6 e4 b5 c2 b7 Ra3+ Kh4 Rd3 g4 Rb3 g5 Qa5 b6 Nh6 g8B Nd7 b8R Nc5 b7 Qb6 g6 Bf5 Ne2 Rg3 Rg1 Nd7 Nd2 Ne5 Ra8 Bd7 b8R Neg4 Rg2 Rd3 Nb3 Rh7 Na5 Ne3 Ng3 Bc8 Qe2 Qa7 Rb3 Rd2 Qc4 Bg7 f8R Bb7 Rfc8 Nf7 Rc7 Bh6 Bb2 c1R Rb1 Nd8 f7 a1N f8N Rd7 Nh7 Rcc2 Be6 Nf7 Bc3 Rf2 Be1 Rcd2 R1b2 Rd8 Bd7 Nac2 Rg1 Nb4 Bfh3 Nec2 Rg2 Na3 Rc2 Nc6 Rcc3 Nfe5 Rf3 Nf7 Rf5 Nb5 Rg5 Rf6 Nh1 Rf3 Nf2 Rf5 Ng4 Rf1 Kg3 Rff2 Ngf6 h4+ Kg4 Rf5 Kh5 Rf1 Bg3+ Rf4 Bhg4 h3 Kh4 h2 Nh5 Ke7 N5f6 Rff2 Bh3 h1B Rh2 Bf3 Rg2 Rb8 d6+ Kd8 d5 Be2 Bde6 Bd3 d7 Ke7 Bef5 Rd8 Bfg4 Nce5 Bf5 Kd6 Bfg4 Re8 d8N Re7 Ne6 Rd7 Nf4 Nc6 N4h5+ Rf4 Ng7 Rd8 Be1 Rff2 Bf5 Ke5 d6 Kf4 d7 Kf3 Be6 Rfe2 Bg3 Nbd6 Bef5 Rf2 Be6 Re8 d8N Re7 Bc8 Re5 Bce6 Rd5 Bd7 Rd4
1q2Nk1B/1B2N1R1/2qrn2R/1n2PBN1/1NB2KQ1/1N3R2/p5rB/b3r1qb w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Ke3 a5 g4 c5 d4 h5 b4 c4 e6 h4 d6 c3 b6 h3 b5 h2 d7+ Ke7 d5 a4 b7 c2 g6 a3 g5 a2 b6 Bg7 d6+ Kf8 Nf3 Rh5 Bh3 Bf6 e7+ Kg7 e8N+ Kf8 g7+ Kf7 g6+ Ke6 Kf4 Na6 b8B Qe7 d8N+ Kd7 e4 Nc5 b7 Nb3 Nc6 Ra7 Ng5 Rh6 Nb4 Nd4 Bb2 c1Q+ Nd2 Qc6 Nb3 Nb5 Qg4 Qd8 Raf1 Ne7 g8B Bc3 Rhg1 h1Q g7 Qg2 Rh1 Qg1 Bc4 Qdb6 g8B Nd5+ Kf3 Ndc7 Bgd5 Ra6 Kf4 Rg6 Rf3 Kd8 d7 Ke7 d8R Kf8 Rd7 Rd6 Bc1 Ba1 Bb2 Ra5 Rg7 Ne6+ Ke5 f4 Bc7 Nc5 b8N Ne6 Bd4 Bb7 Kf5 Qd7 N8c6 Qc8 Bb2 Qb8 Ne7 Ba8 Bb7 Qc6 Rh7 Ra6 Bh8 Rd2 Rg7 Rg2 Rf1 f3 Bh2 f2 e5 Nd8 Kf4 Rb6 Re1 Ra6 Re3 f1R+ Rf3 Re1 Bc8 Qd5 Bb7 Rd6 Qh4 Qdc5 Bf5 Qc6 Qg4 Qa6 Bbc8 Be4 Bb7 Qc6 Bg3 Bd5 Rh6 Be4 Bh2 Bd5 Bg6 Ne6+ Kf5 Ned4+ Kf4 Rb2 Rf1 Bh1 Bf5 Rg2 Rf3 Ne6+
4n2b/1R2Rp2/B4r1K/2q3NB/1Bb1NRQr/r3R3/3NbP1q/1Rn1kNN1 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 h4 d5 c4 g6 e4 a4 c6 a3 c5 d4 c7 d3 h6 d2 h7 a2 b6 Nf6 Kg5 Ra3 h5 Ra6 h6 Rg8 h8N Ra8 h7 Nbd7 b7 Nb8 c6 Qe7 Rh3 Qd6 Ba6 Nd5 Ba3 Qc5 Re3 Ne7 Qg4+ Nf5 Bb4 d1B Nd2 Bg7 Nf1 Qc2 Rb1 Nd7 b8R a1R Rb7 Nc5 Be2 Bd7 c8N R8a4 c7 Bb5 Nb6 Nd3 Nc4 R1a3 Ncd2 Qc5 c8N Bc4 Nd6 Nc1 Bf3 Rd8 Be2 Rd7 Bf3 Ke7 e6 Bde2 e5 Ra5 N6e4 Nd6 Bg2 Bf6+ Kh6 g5 Bf3 Ne8 Ng6+ Kd8 h8R Rd4 Rf8 Bh8 Rg8 Kc8 Nh4 Rb5 Qh5 g4 e7 g3 e6 g2 Rg4 Rba5 Rf4 Rb5 Rb6 Kc7 Rb7+ Kc6 Qg5 Rba5 Bh5 Rb5 Qg6 Kd5 Nhf3 Rba5 Nfg5 Rb5 N1f3 g1Q Qg7 Qh2 Ng1 Rdd3 Qg6 Kd4 Qf5 Ra4 Qh3 Rda3 Qg4 Nf6 e8B Rba5 Bb5 Ne8 Ba6 Rb5 Rc3 Rba5 Rc2 Kd3 e7 Rb5 Rcb2 Rba5 Rb3+ Kc2 Re3 Kd1 Rd3 Ke1 Rdd7 Rh3 Rd3 Rh4 Re3 Ra3 Rbb3 Ng7 e8R Rb5 Ree7 Ne8 Rg3 Qd4 Rgd3 Rf5 Re3 Qc5 Rb1 Rf6+
BNNRn1b1/4Bkn1/R4BRr/1rBP2Q1/Kb1p3q/R1b1b3/b5N1/4RB2 w - - 0 1 illegal: No proof kernel
1N5R/n2N1Rr1/1q4Br/Q6K/3N1b1B/2rNRPp1/1rN1n1R1/1b1k1nBR w - - 0 1 illegal: No possible last move
2nNb2r/2BRqN2/2r4B/2nBNBr1/N1R1K3/b4pk1/QPnr2B1/1N1R4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 f5 d4 a5 e4 c5 h4 g5 h6 a4 d6 Ke6 h5 c4 h7 a3 d7 c3 b6 c2 d5+ Ke7 h6 f4 e6 Kd6 b7 Ke5 e7 a2 e8B Ra6 d6 Ra5 Bg6 Qb6 d8R Ra8 d7 Qc6 Rh4 Qc7 Ne2 Ra4 Nec3 Bg7 Bf5 Qa5 Bg2 Rd4 Na4 Na6 b8B+ Qc7 Be3 c1R Qb3 Qd6 Bc7 Ne7 Rg4 Bf8 Qa3 Rg8 h8N Rd2 h7 Rc6 Rh4 Nc5 Nf7+ Kf6 Rg4 Rh8 Ne5 Bb7 Qb3 Nc8 Qd5 Qe7 Qc4 Rg8 h8N Ba6 Nhf7 Bb5 Nd3 Rh8 e5+ Kg7 e6 Kf6 Nac3 Ba4 Nde5 Bb5 Na3 Ba4 Rd1 a1N Qa2 Nc2 Nab1 Bb5 Be4 Ba4 Bd5 Kf5 Rh4 Qd6 e7 Bb5 e8B Qe7 Rh5 Ba4 Rhh1 Bb5 Rhe1 Ba4 Re2 Bb5 Na4 g4+ Kf2 f3 Bh6 Na1 Ke3 g3 Bh1 g2 Ree1 g1R Bg2 Rc2 Rd4 Rd2 Rd1 Rh1 Rg4 Rh5 Rc4 Rg5 Bf1 Rc2 Kd4 Kf4 Bg2 Kg3 Ke3 Ncb3 Ke4 Rd2 Nd6 Kh4 Bg6 Kg3 Nf7 Nc2 Bh7 Qe8 Bg6 Ba3 Bf5 Qe6 Rf8 Qe7 d8N Rc5 Rg8 Be8 Rg6 Rc6 Rd6 Qf8 Rd7 Qc5 Rh1 Qe7 Rd1 Nc5+
NB4R1/2N1b2r/BR3N1b/PR1r1rq1/1R1N4/1n3bk1/RN2Q1p1/1K1B1nb1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc2 b5 h4 g5 f4 c5 a4 e5 f6 b4 f5 g4 f7 g3 f6 g2 a6 e4 h6 c4 a7 c3 a5 e3 h7 e2 h5 e1B h6 Qe8 Bf4+ Qe5 Rh5 Bh3 Ra2 Be7 f8N Na6 f7 B7h4 Ne6 Nc7 f8N Bhg3 Nd2 b3+ Kb1 b2 Ngf3 Bgf2 Qe2 Rb8 a8B Na6 Nd7 Rb6 Nf6 Be3 Nc4+ Ke7 d6+ Kf7 d5 Kg6 d7 Bg4 d8N Bh4 d6 Nc5 d7 Nb3 Nc7 Rb5 Nde6 Bg1 d8R Ne7 Nfd4 Nd5 Rb8 Qg5 Rb6 Ne3 Bf3 Rf5 Na8 Rd8 h8R Rdd5 Be4 Bf3 h7 Bg3 Bc7 Bd6 Rhb8 Bc5 Rh4 Be7 Rf4 Kh6 h8R+ Kg6 Rhg8+ Kh6 Ng4+ Kh5 Bc2 Kh4 Nf6+ Kg3 Bd1 Nc5 Qc2 Nb3 Bd3 Nf1 Qe2 Rd7 Be5 Rd6 Nec7 Rd5 Kc2 b1R Nb2 Ra1 Ba6 Rb1 Rb5 Ra1 R8b6 Rb1 Kd3 c2 Bd6 c1B Kc2 Rde5 Ncd5 Ra1 Bb8 Bd2 Ndc7 Rd5 Nd3 Rc1+ Kb2 Rc4 Kb1 Rc6 Nb2 Rcd6 Nh7 Rh6 Nf6 Rh8 Nde6 Rh7 Rfb4 Qg6 Nd4 Bh6 Raa4 Qg4 Ra2 Qg5
2R2K1N/1q3nB1/pB3N2/2b1Qr1N/Pb1R2NR/kN2n3/7n/nrR1b1RB w - - 0 1 legal: proof: g4 d5 e4 c5 exd5 f5 b4 g5 bxc5 Bd7 h3 Bb5 gxf5 g4 Ba3 g3 Bb2 Be2 Bc1 Bg4 hxg4 Qb6 Rh5 Qa5 Rh1 Qd8 Ke2 Kd7 Ke3 b5 Kd4 h5 Ke5 b4 c4 e6 f4 a6 a4 h4 d4 g2 d6 Kc6 d5+ Kd7 c6+ Kc8 c7 Kd7 c8R b3 f6 b2 g5 h3 f5 h2 c5 Rh7 f7 Ne7 Kf6 e5 g6 e4 g7 e3 g8N e2 Bh6 e1B Qe2 Bf2 Nd2 b1N Bg7 Qc7 Nb3 Qa7 Nh3 g1B Nh6 Nec6 Qe5 Bd4 Nf4 Bc3 Nh5 Nb4 Ng4 Nc2 Bg2 Nc6 Kg6 Nd2 f6 Bgd4 Rag1 Na1 Be4 Be7 f8R Nc4 Kf7 Be1 Rg8 Bd8 Kf8 N6a5 f7 Ne3 Rc6 Bb4 Rd1 Bdc3 Rd4 Be1 Rh8 Nb7 Rg1 Rh6 Bh1 Rf6 Rh7 Rf5 Rh6 Rc8 Rh7 Rc7 Rh6 Kc8 d7+ Kb8 d6 Be7+ Ke8 Qb6 d8N Ka7 f8N Rc8 d7 Rb8 Rc8 Bd6 c6 Bdc5 c7 Nd6+ Ke7 Qb7 Nf7 Kb6 d8B Qa7 Nd2 Ka5 Nh7 Qa8 Nh8 Qb7 Bc6 h1N N7f6 Ng3 Kf8 Ngf1 Bh1 Nh2 Rh7 Bc3 Rh6 Nec4 Nb3+ Kb4 Nf4 Ka3 Rh4 B3b4 Nh5 Ra8 Rb8 Ra7 c8R Ne3 Bb6 Ra8 Rc7 Ra7 Re8 Ra8 Rc6 Rb8 Rec8 Bbc3 Be4 Qa8 Ba7 Bb6 Nc1 Bca5 Rcc4 Bc5 Bh1 Rb1 Bb6 Bab4 Nb3 Qb7 Rc1 Nf7+
1bn3b1/1R2N1bb/1N1RN3/qK6/Q1p1r3/B5RN/BN1rBRRP/2n3qk w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 e4 f5 Ke2 g5 Kd3 a5 Kc4 c5 d4 a4 b6 f4 b5 a3 d6 Ke6 d5+ Kd7 b7 a2 h6 g4 e6+ Ke8 h7 f3 d7+ Ke7 d6+ Kf6 e5+ Kf5 e7 Ke4 e8B f2 b6 g3 e6 g2 e7 Qc7 d8R Bg4 d7 Qc8 Nc3+ Ke5 Qa4 Bh5 Bf7 Bg6 e8R+ Ne7 Ba3 Kf4 Nh3+ Kf3 Nd1 g1Q Kb5 Na6 b8R Bg7 b7 Qc7 Nb2 Nc8 Be2+ Kg2 Re3 Nb4 Rf1 a1B Ba2 Re8 h8N Bh7 Ng6 Re4 Ne7 Nd3 Rg8 c4 d8N Nc1 Ne6 Qd8 Rd1 f1B Rd6 Qc7 Rf8 Bg8 Rf7 Nb6 Rbf8 Rd8 b8N Nc8 Nd7 Qa7 Nb6 Rd7 Rc6 Rd2 Rd6 Qc7 Bd1 Bd3 Be2 Qf2 Rd1 Qg1 Rg3+ Kh1 Rf2 Bb1 Rfg2 Qa7 Rff2 Qa5+ Kc6 Be5 Rd7 Bb8 Rb7 Rc2 Rd6 Rd2 Nd3 Bg7 Nb2 Rg4 Rf1 Bbh7 Rff2 Qa8 Kc5 Re4 Kb5 Qa5+
NBNK1r2/2B1NR2/1b5q/2pBNRnb/B3NQ2/r1n4P/3p3R/2Bn2kb w - - 0 1 illegal: No possible last move
1R4b1/b3P1kr/4p2N/1R1R2p1/Bn1R1nN1/2BrBNrB/B4K2/3RQ1rq w - - 0 1 illegal: No proof kernel
n2KB3/1pNBB1RR/rp3r2/1qR5/1R2N2b/kb2QP1N/1n1r4/Br1B3R w - - 0 1 illegal: Other
Q3n1N1/p1N2R1r/6Nq/Bpr5/1rBn1R2/RPK2R1R/1B3q1B/2b2qBk w - - 0 1 legal: proof: e4 d5 c4 f5 exf5 h5 cxd5 h4 a4 h3 a5 b6 a6 Bb7 axb7 Kd7 gxh3 Rh6 h4 Ke8 h5 Rh8 d4 Kf7 Kd2 Kf6 h4 g5 f4 c5 d6 e5 h6 g4 h7 e4 b3 c4 d7 g3 h5 g2 d5 b5 d6 e3+ Kc3 e2 h6 e1R Ra3 Re7 Qf3 Bg7 Rh3 Na6 b8B Nb4 Bb2 Re2 Nd2 Re5 Ne2 g1Q Nd4 Re8 Ne6 Nc2 Ne4+ Kf7+ f6 Kg6 f5+ Kf7 Nc7 Qe7 d8R Qf2 d7 Bf8 Rc8 Bg7 d8B Nd4 Qh1 Qd6 Qg2 Kf8 f7 Nf6 Be2 Re7 Qf3 Ne8 Nf6 Rg8 h8N Qb6 h7 Bh6 Qd5 Kg7 f8R Bc1 Ng6 Re5 Rf3 Kh6 h8B Kg5 Rf7 Qe6 Qc6 Rc5 Bg7 Rf8 Ng8+ Kg4 f6 Qd6 Rf4+ Kh3 Rf3+ Kh2 Bh6 Qg2 Be3 Kh1 Bg1 Qf2 Ne6 Qe7 Rg7 Nc2 f7 Be3 Rc7 Nd6 Rh7+ Qeh4 N8e7 Rh8 f8R Qhh2 Rd7 Qf1 Rhh3 Rh4 Ba5 Bh6 Rhg3 Qhf2 Rc7 Rf4 Kd2 c3+ Kd3 Rb4 Rh3+ Kg2 Rb7 Nd4 Bbc7 Rc8 Ng8 Ne8 Bch2 c2 Re7 c1Q Qa8 Rd8 Nc7 Rd7 Re4 Rh7 R8f7 Kh1 Reh4 Nf5 Rc4 Qg5 Kc3 Qh5 Bd3 Bc1 Be2 Qh6 Bd3 Rd5 Rcf4 Nd4 Bc4 Rc5
2q1KBR1/1n2R3/2NQp3/1qR1N1N1/2b3Np/3RB2B/1N2P1r1/k2qbnnR w - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 Kf2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 h5 b6 c5 b7 f5 d6 c4 d7 h4 Ke6 a4 Kf7 a3 d5 e6 d6 f4 Nf3 c3 Be3 a2 Na3 c2 Nc4 Kb3 Nfe5 f3 Rc1 a1N Bh3 Ka2 b4 f2 b5 Ne7 g8N f1Q+ Nf6 Na6 b8N Nb4 b6 Bb7 g7 Qc8 g8R Qc6 d8R Nbd5 g6 Nf4 d7 Ned5 g7 Ba6 b7 Nb3 Nfg4 Na5 Ke8 Qb5 Nb2 Bb4 Nbc6 Be1 b8B Nb7 Bd6 Rh5 Rf8 Rg5 g8R Qg1 Rf5 Rg6 Rb1 c1Q Bf8 Qc3 Qd2 Qf1 Rc1 Rg7 Rc2 Ka1 Rf7 Qcc4 Re7 Qg1 Bf2 Ne3 Qd6 Nf1 Be3 Rg5 Rc3 Qcc5 Rc8 Rg6 d8N Qcc4 Nf6 Rg2 Rd3 Qc2 Ndf7 Qd1 Bb6 Qgc5 Ng5 Qcc2 Be3 Qcc5 Bg4 Nh3 Bf5 Ng1 Bh3 Qa5 Rcc7 Bc4 Nfg4 Qc3 Nb4 Qa5 Rc5 Qb5+ Nbc6 Qca5 Nh7 Qc7 Ng5 Qc8+
BQrb1Nk1/3p1N1N/1RRN4/3K1pN1/1P1B4/1B1q3B/n1r1p2R/1n2Bbr1 w - - 0 1 illegal: No proof kernel
2rb2Q1/prN4n/p5r1/1RK3Nb/3q2k1/RB1p2B1/P1Bq2NR/3N1RRN w - - 0 1 illegal: Other
1N2n2n/p3k1pQ/3p4/2qB1BN1/2n4B/R1B3PN/p1BbKrRr/3R2NN w - - 0 1 illegal: Other
2k2q1N/n1q5/1QRBb2Q/R3R1q1/3Q2RK/NbnB4/1bP2R2/bR5B w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 g4 h5 gxh5 a5 d4 c5 bxc5 b4 c6 b3 axb3 Qb6 b4 Qd8 b5 Ra7 b6 Rb7 cxb7 Rh6 Nd2 Rc6 Nb1 Rc5 dxc5 Bh6 Bh3 Bg7 Bf1 Bf8 h4 e5 f4 d5 Kf2 Kd7 Kg3 g4 f6 a4 f7 e4 h6 e3 c6+ Ke6 h5 d4 h7 d3 h8Q d2 h6 a3 c7 Kd7 f5 a2 f6 e2 h7 Na6 b8Q Bd6+ Kh4 g3 f8R e1B b7 Bb4 Bd3 Nh6 Nf3 Qe7 Rg1 Bc3 Ba3 Qe5 f7 Bb2 Bd6 Nb4 Ng5 Nc6 Re8 Ng4 f8R g2+ Rf2 Ne3 Nf7 Na7 Na3 Nd5 Rb1 Qc3 Re5 a1Q Qf8 Qc5 h8R Nc3 Rh6 Qa2 Nh8 Qg8 Qf4 Qf8 Qh5 d1B Qd4 Qc4 Rhe6 Qc5 Qh6 Bg4 Rf6 Ba1 Rb5 Qc4 Ra5 Be6 Rg6 Bb2 Rg4 Bd2 Rb1 Ba1 Rb6 g1Q Rba6 Bc1 Rc6 Nab5 Qba7 Bcb2 Qab6 Na7 b8R Ba6 Rb7 Qc5 Rb8 Bac4 Rb7 Bb3 c8B+ Ke8 Rb8 Qc4 Bb7+ Kd7 Rcc8 Qc7 Bh1 Qb7 Rc6 Qc7 Re8 Qg2 Re7+ Kc8 Re1 Bf7 R7e5 Bfe6 Rb1 Qg3+ Kg5 Qgf4+ Kh4 Qg5+
kBq2r2/b2b3R/p5Q1/R1Qb2R1/4r1QP/2rN1B2/1B1B2K1/r4NBB w - - 0 1 legal: proof: a4 f5 c4 d5 e4 h5 exf5 g5 g3 b5 axb5 h4 cxd5 c5 b4 g4 bxc5 Nd7 Ra4 Ne5 Ra5 Ng6 Ra4 h3 Ra1 Nh4 gxh4 g3 Nc3 g2 Nb1 Nf6 Qe2 Nh5 Qd1 Ng3 hxg3 Qa5 Qf3 Qb6 Qd1 Qd8 d4 Kd7 f4 Kc7 Kf2 Kb7 d6 e5 d5 a6 c6+ Ka7 d7 h2 b6+ Kb8 b7 e4 f6 Bd6 g4 Ba3 g5 Rg8 g6 Ra7 d6 Bb2 g7 Rf8 g8Q Ra8 f5 Be5 c7+ Ka7 b8B+ Kb7 f7 Qf6 d8R Qe6 f6 Qf5+ Nf3 g1R d7 Bd6 Bg2 Qg5 Ne5 Ba3 Bb2 Qh5 Qg6 Re8 f8B Bb4 f7 Qg5 Qg4 Qf6+ Bf3 Ba3 Nd3 Qf4 Bc5 Re5 f8Q Qf6 Nd2 Qe6 Nf1 Rg3 Rg1 h1B Bb6 Bd6 Ra5 Qe8 B6d4 Bc5 Be3 Ba7 Qc5 Qe6 Rh8 Bg2 d8B Bd7 Rh6 Qg8 Bdg5 Qc8 Bed4 Bh1 Rg2 Re7 Rh7 Re5 Bd1 e3+ Kg1 e2 Bd2 e1R Bf3+ R5e4 Kh2 Ra1 Bg1 Bb6 Q4f5 Rg5 Qg4 Rf5 Kg3 Rf8 Kh3 Ra7 Kh2 Ka8 Rg3 Qe8 c8B Rc7 Rg2 Ba7 Rg3 Bc6 Be6 Bg2 Bd5 Bh3 Bh1 Qc8 Rg2 Rd4 Bf3 Bd5 Qg3 Bd7 Q3g4 Re4 Rg3 Re6 Kg2 Rcc6 Qh3 Rc7 Rg5 Re4 Qg4 Rc6 Qb5 Rcc4 Qc5 Rc3
3q4/rk1NQp1P/3Qq3/2R2QbR/Q2B4/NB6/2Kp1pb1/2BQRQ1q w - - 0 1 illegal: Other
Rqr1B1q1/8/BQR1n1QB/2Bn2r1/B3Nrn1/3b4/rPB4K/kN3NR1 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 Kd7 Kg3 Kd6 d4 c5 b6 h5 b7 a5 f6 a4 f7 e5 f8B+ Ne7 g8B h4+ Kh2 h3 g7 a3 g6 e4 Bh7 e3 g8B e2 g7 e1R Qd3 a2 Bf7 c4 g8B c3 Nf3 c2 Rg1 Re5 Bch6 c1R Nfd2 Nd7 b8N Nc5 Na6 Rc4 Be8 Rg5 Qg6+ Ne6 Nc5 Ba6 Ba4 Bb5 Bf7 Qb8 Be8 Rb4 Be2 Bd3 Nf1 Ra6 Kh1 h2 Ne4+ Kc7 d6+ Kb6 d5 Ka5 d7 Rc4 d8R Kb4 d6 Nd5 Ned2 Rf4 Ne4 Kc4 d7 Ra7 Bb5+ Kb3 Rc8 Ra5 d8Q Rg8 Nbc3 Ra3 Rc1 a1Q Qb6 Ra2 Bc5 Qb1 Rc6 Qc2 Nb1 Qc4 Rd1 Rgf8 Ba6+ Kc2 Bg4 Rh8 Kg2 h1N Kh2 Nf2 Rd2+ Kc1 Bd1 Rhf8 Ba4 Rh8 Bd7 Rc8 Be8 Ng4+ Kg3 Qd4 Rh2 Qg7 Rh3 Ngf6+ Kh2 Qg8 Rhg3 Bb5 Ra3 Bd3 Rb3 Kc2 Rb5+ Kc1 Ra5 Ng4+ Kh1 Nf2+ Kh2 Nc3 Qg7 Qh8 Neg3 Qf8 Bc4 Qf7 Na3 Bf5 Ra8 Qg8 Ba6 Nd5 Bhg6 Bb1 Bgd3 Bc2 Ne4 Bb1 Qg6 Bc2 Nb5 Kb1 Nbc3+ Ka1 Nb1 Ng4+ Kg3 Bd1 Bdc2 Be2 Kg2 Bd3 Kh3 Nf2+ Kh2 Ng4+
n2n1qrR/Q1rPkB1r/K1QN1RbB/3q2RN/1BB5/1Bq5/6r1/2Q4B w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Ke2 a5 Kd3 c5 Kc4 h5 d4 h4 b4 e5 d6 e4 d5 a4 d7+ Ke7 f6+ Kd6 b6 e3 Kb5 e2 b7 e1Q f7 a3 f8B+ Qee7 Bg2 h3 Nd2 h2 Nh3 a2 Rg1 h1R Nf4 c4 Ne4+ Kc7 Nh5 c3 Nd6 Rh4 Bh1 Nc6 b8R Nh6 g8B c2 g7 Qe3 g6 Qd2 Bf7 Qe8 g8B Kd8 g7 Rf4 Rg5 Ra7 Rb1 Rb7+ Ka6 Ng4 b5 Qd4 b6 a1Q+ Ba3 Qde4 Qc1 Qc3 Bb4 Nf6 Ra8 Rc7+ b7 Rg4 Rb3 Rg2 Rb8 Qc5 Rf3 Qc3 Rf2 Q8e7 Rff5 Ne8 Rf6 Qef3 Be6 Ne5 Qf1 Nf7 Nc4 Ne5 Bgf7 Rc5 Qd1 Rh7 Qd2 Kc7 d6+ Kc6 d8Q c1R g8B Qcd3 Bg6 Nf7 Bh6 Nc7+ Ka7 Bd7 Qc8 Be8 d7 Rc2 Qc1 Qa3+ Na5+ Kd6 Ra8 Qb2 b8Q Qd8 Ba2+ Ke7 Nc4 Qf5 Bb3 Rc3 Nd6 Rcg3 Rg4 Qc3 Kb6 Qe4 Qa7 Qe6 Rb8 Na8+ Ka6 Qee5 Qcb7 Rc7 Qc6 Qec5 Bd3 Qd5 Bdc4 Ng5 Re4+ Ne6 Re5 Rgg7 Ref5 Bg6 Bf7 Qh8 Rf8 Nd8 Rg5 Qg8 Be8 Qgf7 Rh8 Qf8 Bf7 Rg8
bR2r3/1RP5/Q5NQ/1RBBB3/6b1/1Kb1n2n/RbrR1NNR/1k1br3 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Qb6 g7 Bc8 g5 Qg6 hxg6 Nb8 Kd2 h5 Kc3 a5 b4 e5 c6 Ke7 c7 d5 f6+ Kd6 f7 e4 b6 Ke5 b5 h4 b7 h3 b6 h2 Ne2 e3 Kb3 Ke4 c4 d4 c5 d3 c6 d2 Nbc3+ Kd3 Nf4+ Kd4 Bc4 e2 Ne4 e1R Bd5 Bf5 c8Q Re2 c7 Na6 b8R Rg2 b7 Nb4 Nf2 Bd7 Ra2 Nc2 Qh5 d1B Qh6 Bb4 f8B Ne7 g8R Bc3 g7 Ng6 Bb2 B7g4 Be7 Rg1 Ng2 Nf4 g6 Nh3 Rd8 Re8 g8R Re1 g7 Ra6 Rf8 Rc6 g8N Rc5 Rf5 Ne3+ Ka3 a4 Bf8 Ra5 Ne7 Rc5 Ng6 Rc6 Ba1 Bb2+ Kb4 a3 Rg5 Rc2 Kb3 Bc3 Qe6 Bb2 Qa6 Bc3 Ka4 Bb2 Bc5+ Kc3 Rh5 Kd2 Kb3 Kc1 Rd6 Kb1 Rf5 Bh8 Be5 Bf6 Rbd8 Bh8 b8R Bf6 Rb7 Bh8 Rf1 h1B Rdb8 Bg7 N2f4 Be4 Rh1 Bh8 Ng2 Bf6 Bg3 Bc3 Rh2 Bef3 Be5 Be4 Bg8 Bef3 Rd2 Bb2 Ra7 Ba8 Bd5 Re6 Rf4 Bc3 Rfb4 Re8 Rab7 Kc1 Rb2 a2 R4b6 a1B Ra2 Kb1 Rb5 Bab2
6Br/2bQ1Bb1/2P3n1/B1B2R2/B1NpN1n1/r1q1B1nK/R1q2Q2/R2N3k w - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 h4 g5 fxg5 Bb7 h5 Bd5 g3 Bf7 g4 Bg6 hxg6 Qb6 Nh3 Qc7 Ng1 Qd8 Kf2 a5 Kg3 e5 c4 Ke7 b4 h5 f6+ Ke6 f7 d5 c6 e4 b6 Ke5 g7 d4 b7 h4+ Kh3 e3 c5 Ke4 c7 e2 c8Q e1Q c6 a4 g6 a3 g5 a2 b5 Bb4 f8B Qd2 b6 Rh5 Bc5 Bc3 Bb5 Nh6 g8B Qf2 g7 Nf5 g6 Qf8 Qe2+ Qe3+ Nf3 Ng3 Bf7 Ba5 g8B Rh8 g7 Nd7 b8B Ne5 b7 Bc7 Rh2 Ng6 Ne5 Ra3 Qf2 Qc3 Qd7 Qd6 Bf4 Qd5 Bba7 Qdb3 b8R Qbc2 Nc4 Be5 Rf8 Bc7 Kg4 h3 Bab6 Be5 Rg2 h2 Ba4 h1N Ba5 Bf6 Be3 Be5 Bh7 Bf6 g8N Be5 Kh3 Bg7 Qd2 Kf3 Nf6 Nf2+ Kh2 Q2b2 Ne4 Ng4+ Kh3 Qcc2 Nbc3 Qbc1 Rb1 a1B Nd1 Bc3 Ra1 Bb4 Qe1 Qc3 Rga2 Q1c2 Bcb6 Bd6 Bc5 Nh1 Qh4 Ng3 Bhg8 Bb8 Re8 Bc7 Re5 Ke2 Rf5 Ke1 Bf4 Kf1 Bc1+ Kg1 Bh6 Kh1 Be3 Nh5 Qf2 Ng3+
BN1BB2K/N4n2/1nB1B1R1/1rQqrr2/R2q1N1Q/Rp4bB/1k2P2q/8 w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 a5 g4 f5 b4 e5 fxe5 Ne7 bxa5 Be6 h3 Bf7 Bb2 Ng8 Bc1 Bh5 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Qc8 Bh3 Qd7 Bf1 Qd8 a4 Ke7 d4 b5 Kd2 c5 Kd3 h5 Ke4 h4 a6 c4 g5 c3 a7 g2 g6 b4 d6+ Kd7 a5 Kc6 d5+ Kc5 f6 Kc4 Kf5 c2 e6 Kb3 d7 h3 a6 h2 d6 Be7 g7 Qb6 Kg6 Rh7 d8Q Bf8 f7 Qb7 e7 Rh3 e8B Nc6 d7 Rh4 Na3 Qb5 Bg5 Qc5 Qd6 c1Q Nb5 Kc2 Ra3 b3 Nh3 g1R Nf4 Qb2 Bh3 Rhg4 Kh7 Qb4 Qc5+ Qc4 Kh8 Rf1 Rg1 Bd6 f8N Nf6 g8B h1Q Be6 Rb8 a8B Ne5 a7 Qh2 Bc6 Nd5 a8B Nb6 Na7 Qd4 Qf6 Kb2 d8R Qdd5 Nd7 Qcd4 Qe7 Rb7 Nb8 Bc7 Bh4 Rg5 Rd7 Rf5 Rg6 Rf3 Qh7 Re3 Bd8 Bd6 Qh4 Nf7+ Kg8 Ree5 Rc7 Nd7 Kg7 Rb5 Rb7 Ra5 Rb4 Nb6 Rba4 Rb5 Qc4 Bb4 Qc5 Be1 Kg8 Bg3 Kh7 Nh6 Kh8 Nf7+
b1QKrB2/kqP1R3/qnbN4/Q6N/6BN/bN2pR2/Qr3r1N/N2R4 w - - 0 1 illegal: No possible last move
BnR4R/1KBk1b2/2Nrb1NN/nQ5B/2b3P1/4B1Q1/1Br3p1/Q3b1bB w - - 0 1 legal: proof: c4 a5 g4 f5 f4 g5 a4 b5 axb5 d5 cxd5 e5 fxe5 f4 h3 Qf6 Nf3 Qf5 gxf5 g4 Ng1 g3 Ra2 Ra6 Ra3 Rg6 Ra1 Rg4 hxg4 Kd8 Ra3 Kd7 Ra1 Ke8 e4 c5 Ke2 h5 Kd3 f3 Kc4 a4 d4 h4 b4 a3 d6 a2 Kd5 f2 f6 h3 d7+ Kd8 e6 c4 b6 h2 e5 c3 b7 c2 f7 Bd6 f8N Rh6 e7+ Kc7 e8B Kd8 e6 Ke7 b5 Rh4 b6 Rh6 Na3 Bc5 Nh3 Kd8 Ng5 Be7 Nb5 Rh4 Bb2 c1R Na7 Bd6 Nf7+ Ke7 Bg2 Rc7 Rc1 Na6 b8Q f1B b7 Kf6 d8B+ Be7 Bc6 Bd7 Qa4 Rc8 Bb6 Ba3 e7 Nc5 e8B Ke7 Qc7 Rh6 b8Q Bd3 Ba8 Nb3 Qcc6 B7f5 Qcb5 Bb4 Be4 Be1 Rc7+ Kf6 Kc6 Ne7+ Kb7 Nc6 Bf3 Bd7 d5+ Ke7 Be3 Re6 Nd6 Kd8 Nf5 Bf1 d6 Be2 Rf1 h1B Be4 Bhf3 Rh1 Bd3 Rh7 Bfe2 Bh1 g2 Nh6 Bg6 Rh8 Bh5 Bg6 Bf1 Bd3 Bf7 Bg6 Rf6 Bh5 Bf5 d7 Ke7 Bc3 a1B d8B+ Kd6 Bc1 B1d3 B3d2 Bd4 Bb2 Bg1 Be3 Be2 Ng6 Bf1 Rd7+ Ke6 Qg3 Nb8 Rd2 Rc2 Qa1 B1d3 Bc7 Bc4 Nh4 Ke7 Rdd8 Rd6 Rc8 B5e6 Nc6+ Kd7 Ng6 Na5+
Qn3n2/B1q2Nnk/1Kb1Q2B/4N3/2Q2B2/P1N2qpR/Bn1qrBB1/R7 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 h4 b5 f5 Ra6 g5 Rf6 gxf6 g5 Bg2 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 Ke2 h5 Kd3 e5 f8B Ke8 g6 c5 a3 g3 d6 b4 Kc4 h4 Kb5 e4 d4 b3 f7+ Kd7 a6 h3 d5 e3 f6 c4 g7 h2 a7 c3 a8Q c2 Qd3 e2 Qc4 e1N Nf3 b2 Nc3 b1N Bf4 c1Q Bg2 Nh6 g8B Nf5 B8h6 Bb7 f8B Ke8 Ne5 Qd2 Be7 Qc8 Kb6 Nc2 Bd8 Ng7 d7+ Kf8 d6 Bf3 f7 Bc6 Bf6 Rh7 d8B Nd4 d7 Ne6 Bc7 Rh8 d8N Qcd7 Be3 Qe7 Bf2 Qed7 Rf1 h1Q Rd1 Qh5 Rh1 Qf3 Rh3 Q7d6 Bfg5 Qd7 Bge3 Rh7 Ne4 Nc3 Bef4 Nd1 Nc3 Qe7 Bd6 Nb2 Bdc5 Qed6 Bce3 Ke7 Qaa6 Kf6 Qc8 Qd7 f8Q+ Qf7 Qe8 Nf8 Qb7 Qe7 Qa8 Rh8 Be6 Rg8 Ndf7 Qed6 Ng4+ Kg6 Nge5+ Kh7 Bd5 Qd7 Qe6 Rh8 Qf1 Qd6 Ba2 Qe7 Qfc4 Qc7+ Kc5 Ng6 Bd4 Re8 Bde3 Nf8 Bd4 Qd7 Kb6 Qe7 Bde3 Qc7+ Kc5 Nf5 Nd3 Nd4 Qg4 Re4 Qge6 Nf5 Nde5 Ng7 Bd4 Bb7+ Kb5 Re2 Ba7 Bc6+ Kc5 Qe7+ Kb6 Qc7+
1nN3QQ/R1N1N3/2P3b1/2bn1B2/1qq1NbB1/pnQ1N2K/k2B4/2R1Nb2 w - - 0 1 legal: proof: d4 h5 f4 c5 dxc5 a5 a4 g5 h4 f5 g4 b5 axb5 Bb7 gxf5 g4 e4 Ra7 e5 Rh7 f6 Rg7 f5 Rg5 hxg5 Bc8 Qe2 Qc7 Qd2 Kd8 Qd1 Ra6 f7 Rf6 exf6 Qb6 Bd3 Kc7 Be2 Kb7 Bc4 Qd8 Bf1 Kc7 Kf2 e5 Kg3 d5 c4 a4 b4 e4 b6+ Kc6 b5+ Kb7 g6 d4 c6+ Ka8 c7 Kb7 c5 d3 g7 e3 c6+ Ka8 b7+ Ka7 b6+ Ka6 Bd2 Kb5 Qf3 Kc4 Bh3 Kb3 Nc3 e2 Nd1 e1N Ne3 Bd7 c8N Nh6 g8B Nc2 Bh7 Bc5 f8Q Nd4 f7 Be8 f6 Qd5 Qg8 Qc4 f8N Bg6 f7 h4+ Kh2 Nhf5 Ne6 Ne7 f8N Nd5 Ng5 Kb2 Ne4 g3+ Kg2 Nb3 Bg4 Bd6 Kh3 g2 Qf6+ Be5 Nf3 g1B Ne1 a3 Rc1 Ka2 Rh2 Bf7 Bhf5 Bf4 Ng6 Bf2 Nge7 Bg6 Qc3 Bg1 Nf1 Bc5 Ne3 Bg5 Kg2 h3+ Kg3 Qb4 Rh1 h2 Kh3 Bf4 Qgh8 Na6 b8Q Qc4 Rf1 h1B b7 Bf3 Qg8 Be2 Qbe5 Nb8 Qeh8 Qb4 Rg1 Bf1+ Rg2 Nd7 b8N Qc4 Na6 Nb8 Nc7 Qb4 Qcd4 Qc4 Ba5+ d2 Qc3 Bd3 Rg1 d1Q Rg2+ Qc2 Rd2 Be2 Rd4 Qb5 Ra4 Qc4 Bb4 Qb2 Ra7 Qd2 Qcg7 Qdd4 Bd2 Qb4 Qf6 Qdc4 Qc3 Bf1+
2R1BqNn/B4N1k/Rp5B/2N4r/r1nQ1qN1/n1n1PKQN/1N2R1r1/8 w - - 0 1 legal: proof: c4 e5 b4 a5 bxa5 d5 cxd5 g5 f4 f5 g3 g4 fxe5 f4 h3 f3 Bb2 Bh6 Bc1 Bf4 gxf4 g3 Qc2 Nh6 Qd1 Bg4 hxg4 Ng8 d4 Kf8 a4 Kg7 e6 c5 a6 h5 f5 c4 e7 g2 Kf2 h4 e8N+ Kh7 a7 h3 d6 c3 d7 h2 a5 c2 g5 Qf6 d8N Qc6 d5 Ne7 a6 Rf8 g6+ Kh8 g7+ Kh7 g8N Qc5+ Be3 c1Q f6 Q5c3 d6 Nd5 f7 Qc8 d7 Ne7 Qd4 Q8c7 Nd2 Q7c5 Nh3 g1N Nc4 Nf5 Ne6 Ne7 d8N Qc7 Nc5 Qc8 Nb2 Ng6 Kg3 f2 Nef6+ Kg7 Ra2 Nd7 Ng4+ Kh7 Ra1 Re8 f8B Nh8 Bfh6 Nb6 Nf7 Nc4 Bg2 Re5 Bc6 Qf8 Be8 f1N+ Kf4 Nfd2 Ra3 Ngf3 Re1 h1R Ra5 Rh5 Ra1 Rd8 a8R Nb1 a7 Ng5 Rc8 Nba3 a8Q Rg1 Qb8 Ne4 Kf3 Nc3 Qg3 Rg2 Ra2 Nc2 Ra6 N2a3 Bef4 b6 Bb8 Qg5 e3 Rd7 Re2 Ra7 Ra5 Ra6 Ba7 Qe5 Rb5 Ra4 Ra5 Qed6 Ra6 Qf4+
Q3rQ2/n1BBQN1p/n3BN2/1q6/2B3K1/1n1q1RPB/3N1R2/qnB3kr w - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 axb5 e5 fxe5 f4 d4 Kf7 dxc5 Ke8 Kd2 g5 Ra2 Bb7 Ra1 Be4 Ra2 Be7 Bg2 Bf5 gxf5 g4 Bf1 g3 Ke1 g2 Ra1 Bh4+ Kd2 Bg3 hxg3 Qh4 Ke1 Qd8 Kf2 Ke7 Kf3 d5 e4 a5 c4 a4 b4 a3 b6 d4 e6 Kf6 b5 Ke5 e7 d3 e8N Kd4 f6 a2 c6 d2 f7 Qd5 f8Q Qe5 c5 Ra6 c7 Nd7 c8B Nh6 b7 Qc7 b8Q Nf5 b6 Qd6 c6 Qa3+ Kg4 Ke3 b7 Kf2 c7 f3 e5 Rd6 e6 Ng7 e7 Nb6 Bc4 Qd3 Nf6 Ne6 e8B Nc5 Bed7 Na6 Qa8 Rc6 Qa4 d1N b8B Nc3 Nd2 Nb1 Qab4 Re6 Qbe7 Re1 Bde6 Rf1 Bcd7 Nc8 Rh2 Na7 c8B Rg8+ Qfg7 Re8 Bc7 Rd1 Qgf8 Rf1 Ne2 Rh1 Nd4 Kg1 Nb5 f2 Nd6 f1Q Nf7 Qff5+ Kh4 Qb5 Kg4 Na3 Rb1 a1N Rb3 Nb1 Rc3 Qdd5 Rf3 Qd3 Rh5 Nb3 Rhf5 Kh2 R5f4 g1Q Rf2+ Qg2 R4f3 Kg1 Kf4 Qh2 Bh3 Qg2 Kg4 Qgf1 Bde6 Qd1 Bcd7 Qe1 Ng8 Qee5 Nf6 Qa1
Bk3n2/2r1Bqb1/4b3/3N1p2/Np4P1/rb1B1BR1/R2B3r/1B1QQNKQ w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 h4 e5 c4 g5 hxg5 e4 cxd5 b4 f3 Nc6 fxe4 Na7 e5 Nb5 axb5 Bg7 Ba3 Bh6 Bc1 Bf8 g4 Kd7 Kf2 h5 d4 f5 e4 c5 a6 Kc7 e6 c4 e7 c3 e8Q h4 e5 c2 d6+ Kb8 d5 h3 a7+ Kb7 g6 h2 e6 Bd7 g7 Ne7 g8B Ng6 b6 Bb5 d7 Ne7 d6 Bg7 Nd2 Qc7 d8N+ Kc8 Nc6+ Qd8 d7+ Kb7 Bd3 Qb8 d8B Ba4 Nf1 Rh7 Bd2 c1R Ne2 Rc5 Nc3 Be5 Rg1 h1B Rg3 Rh5 Kg1 Nc8 e7 Bh8 Ba2 Rh7 Bab1 Rf7 Ra2 Rh7 Qh5 Qe5 e8B Qg7 Ne7 Bd5 Qh1 Qf7 Bd7 Rc6 Be6 Bc4 Bd5 Rh2 Bf3 Be6 Ned5 Bg7 Bh4 Ne7 Bf6 Ng6 Be7 Rac8 a8B+ Kb8 b7 R8c7 Nf4 Bc2 Na4 Rc3 Be3 Ra3 Bc1 Ka7 Bd2 Rc4 b8Q+ Ka6 Ra1 Nf8 Nd5 Bb3 Qe5 Ka7 Ra2 Rc7 Qee1 Kb8
K2N2rn/N1qPrRQ1/3n2R1/1pR3p1/2QB2B1/QR2q3/6R1/R1bNn2k w - - 0 1 legal: proof: b4 a5 bxa5 d5 a4 h5 g4 f5 gxh5 d4 e4 b6 exf5 d3 a6 Qd7 a7 Ba6 a5 Bb7 a6 Qd5 axb7 Qa5 cxd3 Qb4 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 c6 f4 e6 f6 Be7 f7 Na6 b8R Nb4 f8Q Qe8 h6 Rh7 f5 Qd8 h5 Nd3 f6 Rf7 h7 Qe8 h8Q Nf2 h6 Qd7 h7 Nh3 Qhg7 Nf4 h8R Ng2 Qg4 Qd8 R1h2 Nf4 Rg2 Nh3 Ne2 Qe8 Bb2 Nh6 Nec3 Nf4 Rg8 Nd3 Na3 Nf4 Nd1 Qc8 Be2 Qc7 d3 Ng6 Nb5+ Kd7 d6 c5+ Ke4 Kc6 d7 c4 d4 c3 d5+ Kc5 d8N e5 d6 c2 d7 c1Q Qh4 Nf5 Bg4 Nh8 Bd4+ Kc4 Ra5 Ba3 Qe7 Bb2 Qa3 Re7 f7 Qc3 f8R Bc1 Rf7 Qd2 Kf3 Kd5 Rb7 Rc8 a8R Nd6 Rbb8 Qdc2 Na7+ Q2c5 Rb7 Rb8 Rb5 Rc8 Rb3 b5 Rb6 Rb8 Rc6 Q5b6 Qgh6 Rc8 Rg6 Rb8 Qg7 e4+ Ke2 e3 Kd3 e2 Kc3 Ke4 Kb4 e1N Rc4 Qbb7 Rc5 Qcc8 Ka5 Qd5 Rbf3 Qc7+ Ka6 Qe5 Rb3 Qf4 Qh1 Qe3 Qf1 Nf5 Qc4 Kf4 Ra2 Kg3 Ra1 Kg2 Ra2+ Kh1 Rab2 Rc8 Rg2 Qa5+ Kb7 Qac3 Rb8 Nd6+ Ka8 Rc6 Rb6 Qa5 Ra6 Qc7 Qab4 Rb6 Ra1 Ra6 Rg3 Ra2 Qa3 Rh2 Rg2 Rh7 Qe5 Rg7 Qf6 Rg8 Qe5 Ne4 Qg7 Nd6
Q1r1N3/4RrN1/r2bN1BK/NQ1Q2N1/1R1r4/kpnb1q2/4pP1B/B4N2 w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 g6 b4 Qd7 bxa5 Qd8 fxg6 Nh6 h4 Ng8 g4 Qd6 g7 Qd7 g5 Qd8 h5 Nd7 Ba6 Ne5 Bf1 Ng6 hxg6 Be6 Qb3 Bf5 Qd1 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 d4+ Kb4 a4 h5 d6 b5 a6 c5 a5 h4 a7 c4 d7 h3 a6 h2 d5 e6 d6 c3 Qe2 c2 Nf3 Ne7 g8N Qe8 d8N Bg7 d7 Rh7 Nf6 Rh6 Bb2 c1R Nc6+ Kb3 d8B b4 Nbd2+ Kc2 Qb5 b3 Na5 Bd7 Ra4 Rh7 Rb4 Bc6 Bc7 Rh8 Nh5 Bf6 g7 Bb7 g8N Rd1 g6 Qf8 g7 Nf5 Ba1 Ne3 Ng5 Be7+ Ngf6 Be4 g8Q Bd3 Ng7 Nd5+ Kg4 e5 Nfe8 Rc8 a8Q e4 a7 Nc3 Qgd5 e3 Bd6 Rg8 Kh5 Qf3+ Kh6 Rf8 Be2 Rf4 Re1 Rf7 Nf1 h1R+ Bh2 Rd2 Bd1+ Kb1 Bc2+ Ka2 Bb1+ Ka3 Re2 Bd6 Bc2 Bh7 Bg6 Rd3 Qac6 Rd4 a8N Rg1 Nac7 Rg2 Nce6 Rg1 Bh5 Bd3 Bg6 Rgg4 Qa8 Rgf4 Rd2 e2 Rd1 R4f6 Rc1 Nd1 Rc7 Nc3 Re7 Bc7 Nc5 Ra6 Nce6 Bd6
N3BQn1/4P3/1B1K4/b1N1RppR/2r4b/k3N1Qb/q3Qq1Q/1Q1Q1Rq1 w - - 0 1 legal: proof: h4 a5 a4 e5 f4 f5 fxe5 b5 axb5 d5 c4 g6 cxd5 Ra6 g4 Ra7 g5 Nd7 h5 Ndf6 gxf6 g5 Ra2 Ra6 Ra1 Re6 Qa4 Re7 Qc2 Rg7 Qd1 Rg6 hxg6 Bd7 Qa4 Be6 Qd1 Bc8 Kf2 Kd7 Ke3 c5 b4 h5 d4 c4 b6 h4 g7 h3 f7 h2 d6 Kc6 d7 Kb5 d5 a4 Kd4 c3 b7 a3 b8Q+ Bb7 e4+ Kb6 d6 a2 b5 Ka5 Kc5 c2 e6 Ka4 b6 Bc8 e5 Rh6 b7 Rh7 e7 Rh6 e8Q Rf6 e6 Ne7 g8R Kb3 Nd2+ Ka4 Bb5+ Ka5 Ne4 Nc6 Nf3 Bh6 f8Q Ne5 Nfd2 Ng4 Nf1 Qe7 d8N Qh7 d7 Bg7 Be3 c1B Kd6 Kb4 Bb6 Be3 Qb1+ Ka3 Nc5 Bf2 Ne3 Qh4 Qh5 Nh6 Qe2 Rf7 e7 Bc3 Rf1 h1Q Nde6 Ba5 d8Q Qg1 Rh8 Ng8 Nc7 Rh7 Na8 Bd7 Qbc7 Bc6 b8Q Bg2 Be8 Rh5 Rh6 Bh3 Re6 Qhg3+ Re5 Rh4 Qdd7 Rc4 Qdd8 Q1g2 Rh1 Qg1 Rh2 Bg2 Rh5 Bf1 Qe4 Bg2 Rf1 a1Q Qf4 Q3h2 Qg3 Bh3 Qcb7 Qb2 Qh1 Qhg2 Qhh2 Qa2 Qb7 Bfe1 Qe4 Q2f2 Qb1 Bg4 Kc7 Bh3 Qdd1 Qf3 Kd6 Qf4 Qgg2 Bh4 Qgg3 Qff2
nN1B2BQ/1P6/pN2NN1n/1R2Rr1K/4p2R/3B1kb1/2N3n1/Nn2q1Qn w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 e4 b3 exf5 a6 f6 Nd7 f5 Nb6 f7+ Kd7 f6 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 h3 Ra7 Qb3 Rb7 Kd1 Rb6 Ke1 Rc6 Qc2 Rc3 Qb3 Rf3 Qd1 Rf5 gxf5 Bb7 Ra3 Bc8 Ra5 Nh6 Ra1 Ng8 b6 g5 Be2 g4 Qb3 g3 Bf1 Bb7 Nc3 Bc6 Nb1 Bb5 Qc2 Be2 Qd1 Bg4 hxg4 Bh6 Qf3 Bg7 Qd1 Bf8 Ke2 Kd6 Kf3 Ke5 d4+ Kd6 b4 h5 b7 e5 b5 c5 b6 h4 g5 e4+ Kg4 g2 g6 c4 g7 h3 Nd2 c3 Ne2 g1N Ra5 c2 Rb5 h2 Nb3 Rh5 Bg5 c1N Na1 Be7 f8N Na2 f7 Nd7 b8N Rh8 f6 Nc3 b7 Nc5 Nh7 Nh6+ Kh5 Qc7 f8Q Qc8 g8B Nf3 f7 N5a4 Nf6 Nb6 Qg7 Na8 f8N Na4 Nf8d7 Nc3 Nb6 Rh7 Qh8 Kc7 d6+ Kd8 d5 Ne1 d7 Kc7 d8N Kd6 Ne6 Ke5 Qc1 Bd6 N2d4 Nb1 Bd3 Ng2 Ndc2 Qc3 Qg1 Qe1 Bh4 Kf5 Bg5 Be5 d6 Rf7 d7 Rf8 d8R Rf7 Nc5 Bg3 Re8 Rf8 Bh4 Kf4 Re5 Kf3 Ne6 Rf7 Nfd7 Rf4 Bd8 Rg4 Nf6 Rf4 Qc5 Qd2 Rc1 h1N Qg1 Qe2 Rd1 Qe1 Rd2 Ne3 Rh2 Ng2 Rh4 Rf5+
4QQ2/1BR2p1k/6qB/r2Q2RB/3NQbr1/6p1/q1Q1PQK1/q1N2qRn w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 fxe5 d5 axb5 h4 c4 Na6 cxd5 Nb8 h3 g5 Ra5 Nd7 Ra3 Ndf6 Ra1 Nh5 gxh5 g4 Qb3 g3 Qd1 Bg4 hxg4 Qb8 Qb3 Qc8 Qd1 Qd8 d4 c5 b4 a5 d6 c4 d7+ Ke7 b6 h3 b5 a4 e6 Kf6 b7 Kg7 b8Q a3 g5 a2 h6+ Kg6 d5 c3 h7 c2 d6 h2 e7 Ra6 e8Q Nf6 b6 Nd5 b7 Nc3 Bg2 Ra4 Kf1 Rh4 Qa8 Ne4 b8R Bh6 Nf3 Rh3 Rb5 Kg7 g6 Qh4 d8Q Nf6 d7 Qg5 Nbd2 Qe3 Nd4 Rf8 Qb6 Qe5 d8Q Qc7 Rg1 h1Q Qdd5 Qd7 N2b3 Rh2 Qde4 Qc8 Rg5 Qb8 Qad5 Ng4 Bf4 Qd8 Rc1 a1Q Bf3 Nf2 Bh5 Qda8 Qbc5 Kf6 g7 Rh4 h8Q Rg4 Qd2 Qh4 Kg2 Q8a2 Qe1 Nh1 Qf2 Rg8 Qhh7 Rh8 Qhg8 Rh7 Qgf8 Rh8 g8B Rh7 Rcd1 c1Q Qcc2 Qcb1 Rc1 Qh3+ Kf3 Rg7 Bh7 Qf1 Bf5 Rg6 Bc8 Rg7 Bb7 Rg6 Qfc5 Kg7 Qcf8+ Kh7 Bd2 Qe1 Kg2 Qd1 Rf5 Bf4 Rg5 Qe1 Qcc8 Qd3 Rc7 Qed1 Nc1 Q3c2 Q4e5 Ra6 Be3 Qg6 Qee4 Ra5 Qcf5 Qdb3 Qc2 Qbb1 Qfe4 Bd6 Rf5 Be5 Bh6 Bd6 Rg5 Bf4 Ncb3 Qe1 Nc1 Qf1+
2R3B1/rBpR1qQ1/QB1b4/r1p2q2/B5b1/2Qr3R/r1B1NkP1/KBN5 w - - 0 1 illegal: Other
2BN1b2/2r2R2/3RNq2/nK1Q1P1n/1r1pB1Q1/R2b1p1p/3B1RR1/R5Nk w - - 0 1 legal: proof: d4 b5 h4 f5 e4 g5 hxg5 c5 dxc5 e5 f4 b4 fxe5 b3 axb3 f4 b4 Qf6 b5 Qf5 exf5 Be7 Kd2 Bd6 Ke1 Bf8 Kd2 Ke7 Kc3 a5 Kc4 h5 b4 h4 g4 d6 b6 d5+ Kb5 h3 c4 f3 g6 a4 c6 a3 g5 a2 g7 Nd7 b7 Ra6 b8N Ndf6 e6 Kd6 c5+ Ke5 e7 Ke4 e8R+ Be6 g6 Nd7 c7 Ra3 c8R Ndf6 c6 Ne7 g8R Nh7 c7 Nf6 g7 Nh5 Nd2+ Ke3 Bd3 Kf2 Nc6 Kg2 Red8 Rc3 Nb3 Rc4 Be4 Nf4 Nbd4 Bd7 Ne6 Rd4 Ra8 Nh5 c8B Rh7 Rh2+ Kg3 Bd2 Nf4 Ra3 Nh5 Rf2 Be8 Rd6 Rc4 Qa4 Bf7 Ncd8 Nc6 Qa5 d4 Qa8 Na5 Qd5 Be7 Rf8 Bg8 Rf7 Bf8 Rff1 Kg2 Rf2+ Kh1 Rg2 Rh6 Rf2 Bh7 g8R Rg6 Ka6 Rg7 b5 Bg6 b6 Rh7 Rfd7 Be8 b7 Rf7 Re7 Bb5+ Kb6 Rh7 b8Q Rg7 Ra7 Rgc7 Rgg2 Ba6 Qbb7 Bb5 Qbc6 Ba6 Qe8 Bb5 Qg6 Ba6 Rb1 a1Q Qg4 Qc3 Rba1 Qc1 Bc3 Qg5 Bd2 Qf6 Rb7 Ra4 Ra7 Bd3 Rb7 Rac4 Kb5 R7c6 Rh7 Rc7 Rf7 Rb4+
q1r2R2/p2Bp3/4R1N1/3knP1b/R3nBpQ/1NRK3R/Q1N1n1bR/B7 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Kd7 f7 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 g5 Na6 h3 Rb8 h4 Rb6 Kf2 Rf6 gxf6 g5 Ke1 g4 Ra3 Bh6 Ra1 Bg5 hxg5 Qe8 Ne2 Qf8 Ng1 Qd8 Ke2 Kd6 f8R c5 d4 h5 b4 c4 b6 c3 g6 h4 g7 c2 b5 h3 f7 h2 b7 Qd7 b8R Qc7 b6 Bb7 Ra4 Nf6 g8Q Bc6 b7 Nh5 Na3 Rh6 Rbc8 Nc5 b8B Nb3 Kd3 Ba8 Ne2 Nd2 Bb2 Nf3 Qe1 Ng3 Nc1 Ne2 Nb3 Rg6 Qh4 Nc3 Ba1 Kd7 d6 Kc6 d7 Nd5 d8R Rh6 Rd6+ Kb7 Re6 Nc3 d5 Qd8 d6 Ne4 d7 Rh8 Rc3 Qe8 d8R c1N+ Kc4 Ne2 Kd3 Qc6 Nc2 Qe8 Bf4 Ne5+ Ke3 Qc6 Rdd3 Kb6 Rd2 Bb7 Rdd3 Bc8 Bg2 Bd7 Rd2 Be8 Bf1 N2g3 Bb5 Kb7 Rg2 Ne2 Rf2 Qc8 Bd7 Qa8 Rf3 Nf6 Rh3 Ne4 Rg1 h1B Rg2 Nc6 Rgh2 Bg2 Re5 Kc7 Kd3 Kd6 Re6+ Kd5 Qf2 Qc8 Qh7 Qb8 Qhh4 Qd8 Qg1 Qc8 Qb1 Qa8 Qa2 Nb8 Rg8 Nc6 f8N Bh5 Ng6 Ne5+ Ke3 Nf3 Rf8 Rg8 Kd3 Rh8 Rf7 Rc8 Rf8 Ne5+
2n2B1b/Bq6/p2Q4/PBN1B1k1/r1B1Q3/2RNpp1K/R1q1B2N/2rq3Q w - - 0 1 legal: proof: f4 c5 d4 d5 g4 Kd7 e4 Ke6 exd5+ Kf6 b4 h5 bxc5 e5 gxh5 b6 c4 e4 d6 Qd7 c6 Qd8 c5 Kf5 d5 Bd7 cxd7 Nc6 Ba3 Qe8 Bc1 Ne5 fxe5 Qd8 Kf2 g5 Kg2 a6 h4 f6 a4 e3 h6 b5 h5 g4 h7 g3 e6 b4 e7 b3 e8B b2 a5 Rc8 h6 Qb6 d8Q Bg7 c6 Bf8 d7 Rb8 d6 Qd4 c7 Be7 c8B Rb4 Nd2 b1Q Kh3 g2 Qf3+ Qf4 Ne4 Rb7 Be2 Rb4 Nf2 Rb8 Nd3 Qb6 Ba3 Qb7 Qe4+ Kg5 Ra2 f5 Nf3+ Kf6 Nh2 Qf2 Rc1 g1Q Rc3 f4 Qb6 f3 d8N Qg7 d7+ Qc6 Nb7 Bc5 d8B+ Be7 Be6 Qfg1 Nbc5 Qd1 Bc4 Rc8 Qb4 Qb7 Bb6 Qg6 Ba7 Kg5 Qb6 Bd8 Beb5 Bf6 Qd6 Ne7 Bb4 Rhf8 h8Q Bg7 h7 Rf4 Qe8 Rc6 h8B Nc8 Qg8 Bf6 Qh7 Rg4 Bg7 Qf5 Bf8 Bh8 Ba3 Qd5 Bb2 Qc2 Rca3 Rc7 Be5 Qd4 Rb3 Qa1 Rc3 Qad1 Qed5 Rd4 Qde4 Rc6 Bb3 Ra4 B3c4 Rc7 Qg8+ Rg7 Qgh7 Qh1 Kg3 Rg6 Ng4 Rh6 Ne1 Qf1 Ned3 Rh1 Qh2 Qfc1 Kh3 Rd1 Qh1 Q1d2 Nh2 Rc1 Qd7 Qe1 Qd6 Qed1
1NRQ4/bBbN1B1Q/R5bK/P2q4/pQb3Q1/2B2r2/2pNpk2/2rQ3Q w - - 0 1 illegal: No proof kernel
B1N1RBQq/5BQ1/3n4/2R1p2q/pRRqP3/k5qr/p2RKN2/2R1Qr2 w - - 0 1 illegal: Other
2rBBBK1/nn1bbnb1/nn1R4/r1QB2q1/N1QN1kB1/R7/2BPR3/6Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 c5 b4 a5 g4 h5 e4 c4 b6 a4 b7 a3 e6 Kd6 e5+ Ke7 g6 h4 Kg5 f4 b5 f3 d6+ Ke8+ e7 Kd7 b6 Ke6 d7 f2 g7 a2 Kg6 c3 e8R+ Be7 g5 h3 Bd3 f1N Ne2 h2 Nd4+ Kd5 Kf7 c2 g6 Rh5 e6 Ke5 Nc3 Ra6 Ba3 c1N Na4 Nf6 g8B Ng4 g7 Rh8 Bc2 Nfe3 Qg1 Nb3 Bc5 Nc6 b8Q+ Bd6 e7 Kf4 b7 Nba5 Qc7 Nh6+ Kf8 Nd5 b8Q Nb7 Qa7 Nf7 Bb4 Ra5 Qc5 Na7 Qc4 Rh7 Q7c5 Rh8 Ba3 Nb6 Bb4 Qc7 d8B Bd7 Ba3 Qc6 Bb4 Qg2 Ba3 Rh6 Bgh7 Qg5 g8B Rh3 Bhf5 Rf3 Bg4 Rc3 Rb1 a1B Rb3 Nh6 Bd5 Nf7 Bb4 Bb2 Ra3 Ba1 Qc1 Bb2 Re1 h1N Re2 Nf2 Qg1 Nd3 Re6 Be5 Rd6 Bg7+ Kg8 Ba1 Rf8 Bb2 e8B Bf6+ Kh7 Be7 Rg8 Ba1 Rgg6 Bb2 Rge6 Ba1 Re2 Bb2 Qc8 Ndc5 Qc6 Na6 Q6c5 Ba1 Q5b5 Bf6 Qa2 Rf3 Rc6 Nh8 Nb3 Nbc8 Bf8 Nf7 Rd6 Rc3 Qbb6 Rc6 Qbc5 Bg7 Kg8 Baf6 Nd4 Nb6 Qb3 Rc8 Qbc4 Be7
1b2NB1N/2R2b2/1k3K2/r1n1rBrQ/3b1P1Q/Q3b2q/1n1BQQ2/3RbQ1N w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 Ke5 a5 b4 g5 f4 e6 d4 a4 h4 c4 b6+ Kb7 b5 c3 h6 g4 f6 g3 d6 a3 h7 g2 h5 a2 f7 c2 h6 Qe8 d5 Nf6 d7 Ra4 d8Q Bc5 f8B Nh5 d6 Ba3 d7 Be7 Na3 Ra6 Bd2 c1R Nc4 Qg6 Bd3 Ra7 Qf1 Nf6 Qe8 Qg3 d8Q Qh3 Bf5 Ne4 Ne2 g1B Ng3 Re1 Rd1 Rg8 h8N Ra5 h7 a1B+ Qd4 Na6 Qh5 Be3 Nd6+ Ka8 Qc3 Nf2 b7+ Ka7 Ne8 Bd6+ Kf6 e5 Qa3 Kb6 b8Q+ Bb7 Qhe2 Nc5 Qd8+ Bc7 Rg1 Bd5 Nh1 Bad4 Rg7 Bf7 Qe7 e4+ Qe5 Kb7 b6 Nfd3 Qff2 Kc6 b7 Nb2 b8Q Bd6 Qbb3 Bb8 Qbc4 Kb6 Qcd3 Bc4 Rc7 Rg5 Qh5 Bg8 Qdf1 Bf7 Qff3 Bg1 Q3f2 e3 Ng6 e2 h8Q Be3 Qhh4 Bd4 Q8h5 Be3 Nh8 Bd4 Qff3 Bge3 Q1f2 Reg1 Qf1 e1B Q3f2 R1g2 Qfg3 Re2 Qgf3 Bg1 Q3f2 Re4 Qhe2 Be3 Qd5 Re5 Qdf3 Bd4 Qfh5 Nb7 Qff3 Bge3 Q3f2 Nc5
1Rn5/2QqPQ2/2Q1BN2/4B2r/3rnnQb/k1n2Q1b/4N1BN/1n1RKQ1b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 h4 f5 b4 a5 e4 c5 h6 g5 b6 a4 d6+ Ke6 d5+ Kd7 h5 c4 e6+ Ke8 b7 g4 b5 f4 e7 Kd7 b6 c3 h7 c2 h6 g3 e5 a3 Qf3 g2 Ne2 g1N Nd2 a2 Bb2 c1N Rb1 a1N Bg2 Ra5 Nf1 Nab3 Nh2 Na6 b8N+ Ke8 b7 Bg7 d7+ Kf7 e8B+ Ke7 e6 Kd6 Be5+ Kc5 d6 Kb4 Bf7 Nh3 Qf1 Qe7 d8Q f3 d7 Na2 Qf8 Rd5 d8Q Nc5 Qd6 Rd4 Qc6 Ne4 Nd7 Bf6 b8Q+ Ka3 Qbc7 Nbd2 Rb8 Nf4 Rg1 Bg5 Nf6 Nb1 Qg7 Qd7 e7 Bh4+ Qg3 Nd6 Be6 Nac3 Rh1 Bg5 Qg4 Bb7 Ne8 Nf6 Rg1 Rg8 h8Q Nc8 h7 Nfe4 Qg7 Rh8 Qf7 Ba8 Nf6 Bh4+ Qg3 Rg8 h8Q Rg5 Qhg8 Rh5 Qg4 Nc5 Kf2 N5e4+ Ke3 f2 Q3f3 Nbd2 Qb1 Bb7 Rd1 f1B Qd3 Ng3 Kf2 Nb1 Bh3 Bg2 Ke1 Bh1 Bg2 Ba6 Ba2 Bc4 Qf1 Be6 Qdf3 Bf5 Be6 Ne4+ Qgg3 Bh3 Qg4 Nf2 Q3f3 Ne4+
nb2rr1k/3RB3/1nr4P/2RBbB2/Bn1NK1Bq/1b2Q3/nBN3Q1/4RQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Kd3 d5 b4 a5 h4 f5 e4 Kf7 c4 Kg7 b6 d4 e6 a4 e7 g4 e8B f4 b5 f3 e5 g3 e6 a3 c6 a2 c5 g2 e7 f2 b7 Bg4 h6+ Kh7 h5 Qb6 c7 Qe6 c8B Qf7 c6 Ra4 b6 Ra7 c7 Ra3+ Ke4 d3 Bb2 d2 Nf3 g1B Bg2 f1R Nd4 Nd7 b8B Qb3 b7 Nb6 Ba4 Qb4 e8Q Rc3 Na3 Bd6 Rc1 a1N Nc2 Rf8 Qf1 Bd1 Bg4 Bgh2 c8B Bde5 Bd6 Na8 b8R Rc6 Rb7+ Ne7 Rd7 Rhg8 Rg1 Kh8 h7 Nd5 Be7 Ndb6 Bh1 Qc4 Qg2 Bb8 Re1 Bhe5 Qf7 Qb4 Qb3 Re8 Qe3 Rgf8 Bf5 Be2 Qf1 d1N Bf3 Bb5 B3g4 Bc4 Bb7 Bb3 Qg2 Re6 Bd5 Nc3+ Kf3 Na2 Ke4 Qd2 Qf1 Qf2 Qg2 Kg7 Qf1 Qh4 h8Q+ Kf7 Qhh6 Kg8 Qhg5+ Kh8 h6 Ref6 Qee2 Re6 Qeg2 Rc6 Qe3 Rcf6 Na3 Rc6 Rc4 Nc2 Rc5 Ncb4 Nac2 Bf6 Qc1 Bg7 Qe3 Bge5
6QB/Q1Nq1Q1r/N2Rq2R/1qbb3B/2QrQ1Bq/3Q2Pn/1nN2q2/K5k1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 d4 e5 Kd2 a5 Kc3 h5 Kb2 c5 f4 h4 g3 e4 f6 Kg6 f7 Kf5 b6 a4 b7 c4 d6 h3 d5 h2 d7 e3 g6 Ke4 f5 e2 d6 e1Q g7 Rh3 f6 Rh8 b5 Ne7 g8B Rh6 b6 Qe8 d8Q Bd7 Qc7 Ra5 Qe2+ Kd4 Bh3 Nbc6 b8N Bf5 b7 Qf2 d7 Nd5 d8Q Rh7 Na6 Qd7 b8Q Be6 Nc3 Bc5 f8Q Ncb4 f7 Nf4 Qba7 Bd5 Bg4 a3+ Kb1 Qe6 Bb2 Ra4 Qc2 Ke3 Nge2 Qd7 Nb5 c3 Ned4 Nbd3 Qcc8 Qe6 Nbc7 Nh3 Qfe8 Rc4 f8Q Ra4 Rd1 h1Q Bf7 Rb4 Qb3 c2+ Ka2 c1Q Qc4 Qhh2 Bfh5 Qcd2 Qff7 Ra4 Qd6 Qb4 Qcb7 Qb5 Qeg8 Qbd7 Rd2 Rb4 Bc3 Nb2 Rh1 Qb5 Ka1 a2 Nf3 Qed7 Bh8 Ra4 Ne1 Qe6 Qf1 Rd4 Qc4 Qed7 Rf1 Qh1 Rd1 Qe4 Rh1 Qee6 Qbc6 Qff6 Qcb7 Kf2 Nc2 Kg2 Rd3 Qf2 Rh2+ Kg1 Rd2 Bg2 Qe4 Bf3 Qdd5 Bh1 Qed3 Bg2 Qe5 Bd5 Qee4 Ng5 Rh4 Qe1+ Rd1 Ba8 Qdc3 Rd6 Bg6 Nd3 Rh6 Qf1 Ne1 Qff6 Qff8 Nh3 B6h5 Qh4 Qff7 Bc6 Rd2 Rd5 Rf2 Bb7 Rf5 Rd4 Rd5 Ba8 Rd6 Bd5 Q3b3 Ne5 Kb2 a1Q+ Kc2 Qaa4 Kb2 Nd3+ Kb1 Qab4 Ka1 Nb2 Nc2 Qd2 Qbd3 Qf2
2BQ1Bkb/K3r2q/2B2qb1/4n1q1/nPN1q1q1/1Q1B1Q2/2N2rB1/RB4NR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 Ke3 c5 g4 a5 d4 f5 g6 h4 d6 c4 e6 c3 d7+ Ke7 b6 c2 g7 h3 d5 a4 Kd4 h2 Kc5 a3 e4 a2 b7 f4 d6+ Kf6 e7 Kf7 e8B+ Kf6 g5+ Ke6 g6 f3 e5 f2 Bd3 f1Q Bh6 Ra7 Qf3 Qf6 Kb6 c1Q d8Q Qff4 d7 Qc2 Na3 Qe1 Nc4 Na6 b8Q Qee4 b4 Nf6 g8B+ Kf5 g7 Qg2 e6 Nc5 e7 Qg4 Bh7+ Ke6 Beg6 Qfg5 Bf5+ Kf7 Qbg3 Rc7 Bhg6+ Kg8 e8B Bd6 Bb1 Be5 Qb3 Bb7 Qgf3 Na4+ Ka7 Rh7 Bd3 Rc5 Bb1 Bd5 Bd3 Bf7 Be6 Bc3 Bd5 Rc7+ Bb7 Rc5 Bc8 Re5 Bb1 Re7 Bf5 Bg6 Bd3 Q4h4 Bh3 Rh8 Bg2 Qhg4 Bb1 Kh7 Bd3 Rf8 g8B+ Kh8 Be6 Bb2 Bf5 Kg8 Bg7 Rff7 Bf8 Be5 Rf1 a1Q Rd1 Qb2 Ra1 Bc3 Qc7 Be5 d8N Nd7 Ne6 Bh8 Qd8 Qg7 Nd4 Q7f6 Nc2 Qe2 Nh3 Qee4 Rhb1 h1Q Rd1 Qh2 Rh1 Nb2 Ng1 Na4 Ne1 Qh7 Bb1 Qd5 Bfd3 Qde4 Nc2 Qfg7 Qe3 Rf2 Qf3 Q7f6 Qc7 Ndb6 Bc6 Nd7 Qd8 Ne5+
B1B2k1N/1BNq2b1/Rr1qr1r1/1r2Q3/NR6/n3Q1BP/bn1n1KR1/1B4B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 b4 f5 c4 a5 e4 d5 h3 g5 b6 g4 h6 a4 c6 g3 c7 f4 b7 d4 e6 f3 e5 a3 e7 a2 h7 g2 c5 d3 b5 d2+ Kf2 Ra6 c6 Nh6 b6 Nf7 Qb3 d1Q Rh2 Nh6 Na3 Ng8 Nb5 Nd7 b8B Nc5 b7 Bf5 c8B Qa5 c7 Qb4 Bd3 Rd6 Bb1 Bg7 Be3 Be6 Ne2 g1R Rg2 Nf6 Nec3 Rb6 Na4 Qd7 Qd5 Kf7 e8B+ Kf8 Qd2 Rg8 h8N Re1 Bh5 Bb3 e6 Nd5 Qd4 Nc3 Qe5 Qbd4 Bhg6 Q4d6 Bge4 Bc4 Bc6 Nb3 Bc5 Nd4 Bce4 Nc2 Bd4 Na3 e7+ Ke8 Ba7 Bb3 b8R Bc4 Ba8 Nd1+ Kg3 Nb2 Bg1 f2 Bcb7+ Qd8 c8B f1N+ Kf2 Q8d7 Bh2 Nd2 Bg3 Re3 Ng6 Kf7 Nc7 Reb3 Qe3 R3b5 Qe5 Rh8 Qe3 Rh6 Nh8+ Kg8 Qe5 Re6 e8Q+ Bf8 Q8h5 Bg7 Qe3 Kf8 Qhe5 Rg6 B7e4 Rc6 Rb6 Be6 Ra6 Rcb6 Beb7 Bd5 Be4 Re6 Rb1 a1R Bg6 Ba2 Bc2 Nbc4 Rb4 Rg1 Bb1 Nb2 Bf4 Rc5 Qe1 Qd8 Rg3 Nf3 Ke2 Rbb5 Rg5 Rc4 Bf2 Rg4 Bg1 Nd2 Kf2 Rc6 Q1e3 Q8d7 Bfh2 Rcb6 Rg6 Rh4 Rg2 Rhh6 Bg3 Rhg6
1bn1QBB1/N3q1NQ/1k3r1q/1Nq1N3/B3R1K1/PR6/b2NQq2/4Nrnb w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 c5 h4 Kc7 d4 b5 a6 e5 d6+ Kc6 f6 g5 a7 c4 d5+ Kb6 a3 c3 h6 b4 h5 c2 h7 b3 f7 b2 d7 e4+ Kg4 e3 f4 e2 h6 e1Q f5 Bg7 f8Q Ba6 d6 Be2+ Nf3 Qf6 d8N Bd3 d7 Kc7 Qe8 Nc6 Nb7 Qg6 d8N Bb5 f6 Qe7 f7 Qef6 f8N Kb6 Ne1 Bd3 Nfe6 Be4 Rh3 Bh1 Bb5 Qe5 Qe2 Nge7 Ba4 Nc8 Nd6 Rf8 h8Q Nd4 h7 Qh6 Nb5 Rf6 Nc6 Nf3 Nd2 Ng1 Rb3 b1B Ra2 Bf8 Ng7 Bd6 Ra1 Rb8 a8B Qe7 Nca7 Ba2 Bd5 Bc7 Bb2 c1Q Bg8 Qcc5 Be5 Rb7 Bd6 Bb8 Rc1 Rc7 Rc4 Rc6 Re4 Rf1 Bh2 Rcf6 Bd6 Qec7 Bf8 Qd8 Nh5 Qde7 Qg7 Qf2 h8N Qfc5 Nf7 Qf2 Ne5 Qfc5 Kg3 g4 Kh4 g3 Kg4 g2 Qgg6 Nf3 Qh7 g1Q+ Ng2 Qgd4 Ng7 Qf2 Ne1 Ng1
Q3rR2/3bn3/1kqR1b2/1NR2N1Q/PB2rqn1/RBR1Rr2/3r2K1/q3N2Q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 b5 f4 c5 Kf2 Kc7 a4 g5 f6 e5 a6 e4 a7 g4 h6 b4 h5 c4 h7 g3+ Kg2 e3 f5 e2 h6 e1R d6+ Kb6 d5 b3 d7 b2 f7 c3 d6 c2 f6 Bb7+ Nf3 Be7 f8N Qc7 d8R Kc5 f7 Na6 d7 Bd6 Nc3 b1R Ba3+ Rb4 Rc8 c1Q d8R Kb6 Rh3 Kc6 Ng6 Nf6 f8R Rb3 Bc4 Nb8 Ngh4 Re4 Bb4 Kb6 Ra3 Be7 Qh1 Q7f4 Rc5 Bc8 Nf5 Nc6 Nb5 Ng4 Ne1 Bf6 Rd6 Rf3 Bb3 Bd7 Re8 Rg8 h8R Rd8 a8Q Rf8 Ree6 Rfe8 h7 Qc3 Rf8 Qc2+ Kg1 g2 h8Q Qcc1 Qh5 Qc3 Rd3 Qc4 Ree5 Ne7 Re3 Qe6 Red5 Qc6 Rdd3 Be6 Rdc3 Rd2 Red3 Bc8 Rd6 Bd7 Rg3 Ne5 Kh2 g1Q+ Kh3 Qd4 Re3 Qa1 Rec3 Rdd3 Kg2 Ng4 Rh3 Rf1 Re3 Rf3 Rcd5 Rd1 Rdc5 Rd2+
4RB1k/3RQ1b1/n1Kq3r/2Pn3q/N3N3/1r1NB2b/N2NqnBN/5QQn w - - 0 1 illegal: No possible last move
R3b2B/Rb4Kb/2PQR1N1/1Qr2k2/Rqq5/1R1n2nN/1br2nBN/3R3B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 b4 d4 c4 d3 g4 e6 f4 d2 g6+ Ke7 g5 a4 b6 a3 b7 h4 c6 h3 g7 a2 c5 h2 f6+ Kf7 c7 Kg6 c6 Qe8 f5+ Kh7 f7 Qd7 g6+ Kh6 f6 Kg5 b5 Ra4 b6 Rah4 Bg2 R8h5 Bb2 Na6 b8R Rc4 b7 Ne7 g8R Nf5 g7 Ba3 f8R Nc5 f7 Ng3 Re8 Rc2 f8N Nce4 Ng6 Nf2 Rh8 Qd3 g8B Qb3 Rh7 Qb4 Ra8 Qc4 b8R Bb7 c8Q Qb4 Qe2 d1B Qb5 Kg4+ Kf6 Rhc5 Kg7 Kf5 Bf7 Bh5 Qd8 e5 Nd2 e4 Nf1 e3 Bfd5 e2 Re6 e1N Qd6 Ned3 Nh3 Qc4 Rg1 h1B Nh2 Qb4 Bc3 Bb2 Rgd1 Qc4 Ra4 Qb4 Rab1 a1Q Rba8 Qa2 Be5 Qac4 Bd4 Ba1 Rb3 Bc3 Rhh8 Bb2 R8a7 Qe1 Rha8 Qeb4 Bf1 B1f3 Bf6 Be2 Bh1 Bef3 Bfg2 Bd5 Re3 Bg8 Re6 Bh7 Kf7 Ba3 Bh8 Bc1 Kg7 Ba3 Ne5 Be8 Ng6 Bb2+
2K1NRQR/2BB1rb1/5NNN/N2Qb3/Pn3r2/r1pN1n1n/1q1Rb3/1k4B1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 c5 a4 b5 d4 g5 f4 c4 a6 g4 h6 g3 a7 c3 h5 e6 f6 g2 f5 Bd7 d6 Qc8 h7 Ne7 d5 Bh6 f7 Bg5 f8Q Rg8 h8N Be8 f6 Qc6 f7 Qc5 d7 Qf2 Kd6 e5 Kc7 e4 d8B e3 d6 e2 h6 e1R d7 Qb2 h7 Bh6 Be3 Qc1 Nh3 g1B Nf4 Nc6 Qd5 Bh2 Ra2 Rg4 Bg1 Bg7 Qg8 Ng6 f8R Qb2 Nd2 Ra1 Bh3 Rb8 a8N Rb7+ Kc8 Bg3 Ne6 B3e5 Nc5 Nf4 Bc7 Bh5 d8N Rh4 Nhf7 Be2 Bd7 Nh3 h8N Rf4 Nh6 Ra7 Nc4 Rb7 Nd3+ Kb3 Rh2 Kc2 Ng4 b4 Ng6 b3 Nf6 Nb4 Nf7 Kb1 Nh6 Ra7 Bd8 Rb7 Nc7 Ra7 Nce8 Rb7 Bf5 Rf7 Na5 Qc2 Bc7 b2 Ra3 Ra2 Rb3 Ra3 Bd7 Ng5 Ne1 Ka1 Nd3 b1N Rb2 Nd2 Nf5 Ndf3 Rh8 Nh3 Nh6 Qd2 Ra2+ Kb1 Rc2 Qc1 Rd2 Qb2
K1RQ1rN1/b1n1q2N/2b4p/k3B3/B2B1Q2/QbrNBR2/3P4/2nB1Brn w - - 0 1 illegal: No possible last move
k2rrq1q/4r1BR/3b3K/1n1b1N2/2N5/BQ1BRQ1R/BqP2pBB/4n2N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 d5 Ke3 Kd7 Kf4 Kc7 b4 Kb7 h4 a5 e4 f5 c6+ Ka7 c7 d4 h6 d3 b6+ Kb7 h7 a4 b5 a3 h5 d2 e6 g6 h6 a2 e5 Qd3 Kg5 f4 e7 f3 e8B f2 e6 Nd7 e7 Ra4 Qf3+ Qe4 Na3 d1Q Rh3 Ra5 Bg2 Ra6 Nc4 Qf1 Bf7 Ne5 e8B Ra7 Ne2 Ne7 Ng3 N7c6 Ba3 Ka8 Re1 a1Q Re3 Bd6 Nh1 Be6 c8N Qfc1 Ne7 Nd3 Nf5 Nd4 Bg8 Re7 b7+ Ka7 b8B+ Ka8 b6 Qcb2 Bgf7 Bd5 Bb5 Rhe8 h8B Ne1 h7 Qe5 Bg7 Qf6+ Kh6 g5+ Kh5 g4 h8R g3 Rh7 Rd8 Bg8 Qf8 Kh6 Bc5 Be5 Bd6 Ba6 Nb5 b7+ Ka7 Bf1 g2 Bh2 g1R Bf7 Rg4 Bg2 Rge4 Bg8 Kb8 Be6 Kc7 b8Q+ Kc6 Bf7 Ree8 Bg8 R4e7 Bf7 Nc7 Qb4 Nb5 Qb3 Kc7 Be6 Kb8 Na5 Ka8 Qd3 Bc6 Ba2 Qd4 Qb3 Nc3 Bd3 Bd5 Nc4 Qe5 Bb4 Qb2 Ba3 Qf7 Bf8 Qh8 Bg7 Nb5 Be2 Qfg8 Bd3 Qf8
1b1rr1bn/NNR1n2n/Q2q1Q2/b1B1RK1Q/2R2PQ1/1q5Q/1k1p3Q/3B3B w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 g5 b4 a5 c4 e5 h4 a4 h6 d6 h7 a3 c6 a2 h5 g4 b6 g3 b7 g2 c5 Bd7 c7 Nc6 b8R Na7 c8B Bb5 h6 Qc7 c6 Qb7 Na3 Bc4 b5 Be6 b6 Bd7 Nb5 Be6 Rh4 Qe7 b7 Bg7 c7 Bc4 Be2 Be6 Be3 Qf7 Bc5 Nc6 Nh3 g1N Rc1 a1Q Nf4 Nge7 Nd3 Qa6 Na7 Rd8 h8Q Ng6 h7 Nf3 Rh5 Qb6 Rc4 Nce7 Qe8 Qf8 h8Q Bg8 Qf1 Qb1 Bd1 Qb3 Qh6 Bh8 Qh3 Bg7 Qf4 Nh8 Qfg4 Bh6 Be6 Bf4 c8Q Bh2 Bd5 Ng5+ Ke3 Bg3 Bh1 Nh7 Ke4 Bf4 Rg5 Bh2 Qeh5 d5+ Kf3 d4 Ke4 Nd5 Qc6+ Qd6 Qa6 Ne7 Rc8 Re8 Rc6 Rad8 b8Q Bg3 Rc7 Bh2 Nb4 d3 Nbc6 Bf4 Na5 Bh2 Ke3 e4 Nb7 Ke5 f3 Kd5 f6+ Be5 Kf2 e3+ Kg2 d2 f7 e2 f8Q e1B Qf6 Bf2 f4 Be3 Qbc8 Bd4 Qh2 Bc3 Qgh3 Ba5 Qcg4 Qb5 Bd4 Ke4 Kg3+ Kd3 Bc5 Qb3 Kf3 Bb2 Re5 Ba3 Rb4+ Kc3 Ke4+ Kb2 Rc4 Qdb6 Bg1 Bd6 Bc5 Q6b4 Rd7 Bb8 Rc7 Neg6 Kf5 Qb6 Bhf3 Qd6 Bh1 Ne7+
3N1BK1/4BQ2/2B5/N3pqN1/Q1b1nnQ1/QRr2nb1/qPRQ3r/1Qq2k2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 Kg6 c5 Kf7 a5 h4 e5 f4 g5 d4 g4 d6 a4 f6 c4 f5 a3 d7 c3 b6 g3 d5 a2 b7 g2 d6 c2 h6 Qb6 d8N Qc6 h5 Ra7 h7 Ra6 d7 Bg7 h6 Qa4 Nd2+ Ke3 Ngf3 Kf2 Bb5 g1N Rh3 Nc6 b8Q Nce7 Bc6 Qa5 Qc7 Qc5 Ng5 Qb5 Rb3 Qa5 Qg4 Qb4 Nc4 Nf3 Na5 Ng6 Bf4 Qb7 Rc1 a1Q Qd6 Qa4 Qa3 Ra8 Bg3+ Ke2 Bh4 Qf4 Qa4 N8e7 Qa3 Rg8 h8Q Nd5 h7 Bh6 Qa4 Qc7 Qg7 Qa7 h8Q Ba6 Qhh7 Bc4 Qf8 Qe4 Qfa3 Ngf4 Qg6 Rg7+ Kf8 Qa6 f7 Rc8 f6 Rh7+ Kg8 Qf5 f8Q Nc3+ f7 Ne4 Qfe7 Qa8 Qee6 Qa7 f8B Rc7 Qef7 Rc8 Rd1 c1Q Rd2+ Kf1 Rc2 Qa8 Nh3 Qa7 Bf6 Bg5 B6e7 Bh4 Ng5 Bf2 Nde6 Rh5 d8Q Rh2 Qd2 Bg3 Nd8 Qc5 Qa2 Qa3 Qgd6 Rc7 Qb1 Qa2 Qc5 Rd7 Qcb4 Rd3 Qba3 Rc3
7B/2Nq1kbb/3R3B/1PB1Q2q/K1Rp4/1n1NnB2/1n1N4/1QRrrBBb w - - 0 1 illegal: No possible last move
n2Q3B/bB2bbr1/2R2PnK/3n4/rNN1kN1p/Q2q1N1B/2Q4N/1R2N1q1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 Kg5 e5 f4 a3 g7 e4 b7 e3 b6 a2 f5 e2 Na3 e1B Nf3 h4 Bb2 c1N Bh3 Ra5 Qc2 Qe7 Nc4+ Kd7 d6 Kc6 d7 Kd5 d8Q+ Qd6 f7 Qd7 Rb1 Na6 b8N a1Q b7 Qa3 Nc6 Nb3 b8N Nd2 N6e5 Nb4 Nbc6 Qd6 Nd3 Bg3 Nde1 Nf6 g8N Be7 f8Q Rb5 Nh6 Nd3 Nb4+ Ke4 d5 Qc5 d6 Ba6 d7 Qa7 Kg6 Bgd6 g5 Nd5 Ng4 Rb7 Ngh2 Rh5 Bh8 Qg1 f6 Bc5 Kg7 Bb5 g6 Ba7 Rc1 Rf5 Kh6 Rf4 g7 Ba4 g8B Bb3 Bge6 Qa6 Bg2 Qb5 Beh3 Ba2 Nb2 Nc4 Rb1 Ncb6 Nc4 Bc5 Qd6 Na8 Qa6 Be7 Qa3 Qf2 Rf1 Qg1 Rf2 Qa6 Rd2 Rc7 Rdd1 Rg4 Rdc1 Rg7 Bh1 Rc5 B1g2 Ra5 Nb6 Nc3 Qd2 Rb5 Qf8 Nc5 d8N Ne6 Nd4+ Ke5 Bb7 Nf4 N8e6 Ra5 Qd8 Ng6 Nf4 Qd3 Qf2 Bd5 Ndf3+ Ke4 Qfa2 Ra4 Rc2 Nb5 Rc6 Nc3 Nc4 Bf7 Qc2 Nd5
3N3R/3rRr2/N1RpB2Q/1qP2b1q/1n6/1rBR2Q1/1QKn1n2/1RR2Bbk w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 c4 Kf6 h4 Ke5 b4 Kf4 c6 a5 b6 g5 b5 e5 b7 a4 h6 e4 h7 d6 c7 a3 h5 g4 f6 g3 h6 e3+ Kc2 a2 c5 g2 f7 Nf6 b6 Ke4 f4 e2 f5 e1Q Nh3 g1R Qg4+ Ke5 Ng5 Qe3 Qg3+ Qf4 Na3 Ra7 Nb5 Ng4 f6 Ra4 Ne6 Ke4 Bd2 Qf3 Re1+ Qe3 Bc3 Be7 f8R Nf2 f7 Qe8 Nd8 Nc6 b8Q Ra7 b7 Bf5 c8B Bf6 Be6 Bd4 Nc7 Rg8 h8Q Rg7 Rd1 Qg5 h7 Qh5 Rd3 Ra3 Na6 Rb3 Rg8 Qd7 f8R Rf7 Re8 a1N+ Kd2 Rg2 Re7 Nb4 Qf6 Qc6 h8R Qb5 Qh6 Rh2 Rg7 Rh4 Rc7 Rg4 Rgh7 Rgg7 Rc6 Rd7 Kc1 Rgf7 Kd2 Ra3 Kc1 Nb3+ Kb2 Nd2 Rg1 Na2+ Kc2 Rb3 Rh1 Rf6 Re7 Rf7 Qc7 Be3 b8R Bd4 Qa5 Be3 Qa3 Bd4 Qb2 Be3 Qh4+ Kf3 Be2+ Kg2 Rc1 Bd4 Bf1+ Kg1 Qg4+ Kh1 Qg3 Rb4 Ra8 Nfe4 Nb8 Bg1 Ra3 Nf2 Na6 Rc4 Qb1 Rg4 Rb3 Rb4 Rb2 Rb3 Qa1 Qb6 Rbb1 Qb5 Qb2 Nb4+
1b6/K2n3P/1Q2qr1r/QQRN1Q2/qpnN4/k2BR1B1/2b5/B1qQRb1Q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Qc2 Kd7 Kf2 c5 Ke3 f5 d4 g5 h4 b5 a4 c4 a6 c3 h6 g4 a5 g3 a7 b4 d6 Kc6 d5+ Kc5 h5 g2 a6 Qh4 d7 Bb7 d8Q Qg4 d6 Nf6 d7 Bc8 e6 Ne4 e7 Ng5 e8Q Bg7 Ra5+ Kc4 Nf3 Nh3 Rd5 Rf8 h7 Rg8 h8B Qg3 h6 Nf4 h7 Qg6 Bb2 Qg4 Ba1 Bh6 Be5 Qg6 Qd1 c2 Nc3 Kb3 Kd4 Nh3 Kc5 f4 e4 Qf7 Kb6 Bg5 Qf6 Rg6 d8Q Rh6 Qb5 Ng1 Be2 Be6 Bd3 Nd7+ Kb7 Rc8 a8Q Rc6 a7 Bh4 Qc7 Bg3 Qf5 Qe7 Rh3 Bf7 Qad8 Rcf6 a8Q Be6 Ka7 Qf7 Nh2 f3 Rc5 f2 Nf3 f1B Qca5 Bc4 Qdb6 Qd5 Ng5 Nf3 Ne6 Nd2 Bb8 Qc6 e5 Qd6 Qaf3 Qc6 Nd5 Bf4 Be4+ Bcd3 Bd6 Nc4 Rh1 Be2 Re1 Bf1 Q3h5 Bg3 Qh1 Bf4 Ng5 Bh2 e6 Bg3 Nf3 Be5 Qe2 c1Q e7 Bb1 e8R Bg3 Bc7 g1Q Bd3 Qd4 Re3 Qe4 Qb5a6 Bc2 Qd1 Qa4 Qa6b5 Qe6 Nd4+ Ka3 Bb8 Bf4 Be5 Bg5 Bh2 Bf4 Bg3 Bb8+
1Q2Q1Rq/2BQRRPn/1B1RKNn1/3RN3/2q2bBb/2Rn1br1/1rp3k1/8 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 c5 g4 a5 d4 h5 b4 e6 g6 c4 b6 c3 g5 c2 b5 h4 g7 h3 g6 a4 b7 h2 f6 a3 b6 a2 f7 Rh3 Be3 Bd7 Be2 Rh6 Nc3 Qe7 Bg4 Ra6 Nf3 Be8 Ne5 Ra7 Re1 Nf6 g8R h1Q g7 Nbd7 b8B+ Rc7 b7 Qd8 Ne4+ Ke7 f3 Nh7 Nf6 Rc3 Bc7 Qf1 b8Q Qc4 Ke4 Rg6 f4 Rb3 f5 Rb2 Rb1 a1B Qd2 Ra2 Rb3 Rb2 Rc3 Rg5 Bf3 Rg2 Bg4 Rg3 Nd3 e5 Nh5 Ra2 Bh3 Rg2 Rh8 Rb2 Rb3 Nb6 d6+ Kd7 f6+ Kc6 Kf5 Kd5 d7 Ba3 f8Q e4 f7 Rg3 Qg8 Bd6 f8R+ Bf7 Bg4 Ra2 Ra3 Qe8 d8R Nd7 Bf2 Bb2 Bg1 Be7 Rc3 e3 Qd1 Bh4 Nf6+ Kc6 Bf2 Bd5 Rf7 e2 Qf8 Ba3 Qe7 Qg8 Qe8 Bd6 Bg1 Rb2 Be3 Rb6 Bf2 Bg2 Bg1 Bf4 d5+ Kb5 d6 Kc6 Bd4 Rb2 Bdb6 Bh1 Qe7 Ndf8 d7 Ng6 Qe8 Nhf8 Qd2 Qh7 Rg8 Qh8 Rd1 e1N Ne5+ Kb5 Qd6 Nh7 Qde6 Bf3 Rd5+ Qc5 Q6e7 Nd3 Ke6 Kb4 Q8f8 Kb5 Re8 Kb4 d8R Kb5 R8d6 Kb4 Ra3 Qc4 Ra4+ Kc3 Ra3+ Kd2 Rc3 Ke1 Qd7 Kf1 Ree7 Kg2 Qfc8 Ra2 Qce8 Rb2
Q2n1k1B/1P1Bq3/3b3n/1Brn2NB/RK4b1/Q3p1R1/R1q2bBB/3QN2r w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 a5 Kc3 h5 g4 e5 f4 d5 b4 a4 b6 a3 b5 e4 g6 h4 g7 h3 f6 e3 g5 d4+ Kb4 a2 c4 h2 g6 d3 f7+ Ke7 c6 d2 c7 Qd4 b7 Ra7 f5 Qd3 b6 Qe4 f6+ Kd6 Bb2 Bh3 c8B Rh7 Bg2 Qe8 Bd7 Ra6 Bb5 Rh6 c5+ Ke6 Na3 Qe7 Nc2 Bf5 Nh3 Qd7 Ne1 Ne7 g8B Bg4 g7 Bh5 c6 Ra5 c7 Bg4 c8B Rh7 Rf1 h1N Rf4 Nf2 Ng5+ Kd6 Bc3 Rh1 Rc4 Qe6 Bcd7 Qe5 Bh7 Qe4 g8R Nd5+ Kb3 Qe8 Ra4 Nc6 Bg6 Nd8 Bh5 Be7 f8Q Qf7 Bbf1 Rc5 Bfb5 Qg7 f7 Qh7 Rb1 a1B Bh8 Be5 Rb2 Bg3 Rba2 Bh4 Qe8 Qg7 f8Q Qe5 Qe2 d1Q+ Ka3 Qc2 Qd1 Be2 Rg7 Ng4 Rg8 Nh6 b8B+ Rc7 b7 Bf2 Qf5 Bg4 Qfd3 Bf8 Qc3 Qe7 Qa5 Kc5 Qa8 Rc6 Bh2 Rc8 Qg6 Rc7 Qgd3 Rc8 Bg1 Kd6 Qb3 Rc5 Bh2+ Qe5 Rg6+ Ke7 Qc3 Bg7 Qca1 Kf8 Qac1 Qe7 Qa1 Nf4 Kb4 Be5 Qac1 Bb8 Qa3 Bd6 Ne4 Bf5 Rg3 Bg4 Ng5 Nd5+
n2n1Q2/QrQ1r1R1/8/P1q1rpQr/r2Q2b1/1QN2Bb1/1N5K/k3BBNR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg2 g5 a4 f5 h4 b5 e4 c5 d4 b4 e6+ Kd6 a6 g4 a5 c4 e5+ Kc7 d6+ Kc6 d5+ Kb5 e7 b3 e8B+ Kb4 e6 c3 a7 c2 h6 b2 d7 Kb3 d6 g3 e7 Na6 h5 Rh7 Nc3 b1R Bd2 Kb2 Be1 Qc7 d8Q c1R d7 Qc5 Qc7 Bb7+ Qf3 Rf7 h7 Nh6 h8Q Rb8 Ra3 Ra1 d8Q Rcb1 Kh3 g2 a8Q Rc8 Qfd3 Bf3 Qaa7 Bg4+ Kh2 Ra2 Qf3 Ka1 Qhd4 Rb7 Bc6 Bg7 e8Q Re7 Qf8 Nf7 h6 Bf6 h7 Bh4 h8N Rcb8 Rb3 Ra4 Ng6 Rb5 Nf4 R8b7 Qcd6 Nc7 Nd3 Na8 Nb2 Qb6 Qfd3 Rbe5 Bf3 Qc5 Q8c7 Nd8 Qdf6 Rab4 Qg5 Ra4 Nh3 g1R Qb5 Rg3 Ng1 Rh7 Qbc4 Rh5 Rb6 Re7 Rg6 Re5 Rg7 Re7 B3g2 Rge3 Bf3 R3e5 Qb3 Bg3+
1B2b3/3B2b1/1p1KnBkr/RQ1b4/q2RR1N1/PQ1n2r1/Q4B1b/1NBb3B w - - 0 1 illegal: No proof kernel
2Bn1br1/7k/PRb1B1bN/q7/NBQQ1N1B/1BbB1R1p/nr6/Q1b4K w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 Kg7 f4 c5 Kf2 h5 g4 e5 Kg2 b5 a6 h4 g6 c4 f6+ Kh6 g7 e4 d6 e3 d7 e2 f5+ Kh7 d5 e1B g5 c3 a7 b4 f7 c2 a5 b3 a6 b2 d6 Nh6 g8B+ Kg7 f6+ Kg6 Rh3 Nc6 Ne2 Nf5 Kh1 Ne3 Nbc3 b1B Rf3 h3 Na4 Be7 f8Q Nb8 f7 Qe8 d8N Qd7 Nf4+ Kf5 g6 Kg5 g7 Kh6 Bd3 Qc7 d7 B7h4 Qb4 Nd5 f8B Rh7 Qc4 Bb4 Be6 Bc3 Bb4 Nc6 g8B Be7 Nf7+ Kg7 d8Q Bb7 Bb2 c1B Nh6 Bf8 Qd6 Rc8 a8B Qa5 Qdc5 Bc2 Rb1 Nd8 Qb6 Bc6 Bb7 Rb8 Bbc8 Rh8 Bgf7 Rg8 Qbd4+ Nf6 B2a3 Rb5 Be7 Rb2 Bab4 Kh8 Nf5 Kh7 Nh6+ Ne4 Bh4 Ra2 Rb3 Rb2 Q1g1 B1d2 Qa1 Bc1 Bf1 Nd6 Be2 Bg6 Bd3 Ne4 Bc5 B3d2 Rb6 Nc3 Bb4 Na2 Qcc3 Bc5 Bb3 Bd6 Bfe6 Bf8 Qcc4 Bc3
R2K1B2/N1Bb1knB/8/b1Q2nQR/1q1R3n/nP2rB1b/1Q5p/NB1rB3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Kg3 c5 Kf4 h5 e4 a5 d4 h4 g4 h3 d6 a4 e6 c4 Ke5 a3 b3 f4 e7 c3 b6 a2 g6 c2 g5 f3 b7 f2 g7 Na6 b8B Rh5 d5 Rh8 g6 Nf6 g8B Nh7 g7 Bd7 Bh6 c1N Na3 Bg4 Qd2 Qc8 Be2 f1B Nf3 Nc7 Nc2 Ra5 Nfd4 Bd7 Nb5 Ra8 Na7 Bf5 Bf3 Nf6 Bh7 Bb5 g8Q Bbd7 Qgg5 Bc6 d7+ Kf7 Kd6 Bb7 d8R Nh5 e5 Ne6 Bc7 Qb8 Kd7 Nd3 d6 Ng3 Qc3 Ndf4 Qb2 Ng2 Ba5 Bg4 Be1 Bd5 Rd1 a1N Rd4 Nf5 Rc8 Nef4 Kd8 Ngh4 d7 Nh5 Rh2 Nhg7 e8B+ Ke6 Rh1 Qb4 Beg6 Bc6 Rh2 Rb8 Rh1 Rb5 Ra8 Rd5 Rh2 Nh5 Bg7 Bc5+ Bf8 Bb6+ Kc8 Rg8 d8B Ba5 Bc7 Bd7+ Kd8 Nhg7 Rdd2 Nh5 Be4 Nd6 Qe3 Nf3 Qc5 Rg7 Rd3 Re7 Bgf5+ Kf7 Rd1 Nh4 Bf3 Ng6 Rh1 Rd3 Rh2 Ng7 Rdd2 Rc3 Rd4 Rd3 B5e4 Rd1 e6+ Kf6 Rh1 Ndf5 Bd3 Rf7 e7 Ke6 e8Q+ Re7 Rg1 h2 Bde4 Bh3 Rg5 Ngh4 Rh5 Kf6 Bd3 Re2 Qe3 Kf7 Qg5 Re5 Na3 Nc2 Bde4 Nce3 Nc2 Nc4 Na1 Na3 Bb1 Re3
bNb5/2k2B1n/1brR1B1K/3qRQQn/2B1pP2/Q2n3n/1r1R3R/3R1NR1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 a5 Kg4 c5 Kh5 e5 b4 c4 g4 c3 d4 e4 f4 c2 b6 h6 g6 a4 g7 a3 b5 a2 d6 Be7 b7 Bf8 f6 Qc7 f7 Qd8 g5 Ra3 b6 Rc3 g6 Qc7 d5 Re3 Qd3 Qc4 Nd2 Qa6 Ne2 Qa3 Rg1 Qc5 Nd4 Re2 Bb2 c1N Qa3 Nd3 Nc6 Nf2 Rd1 a1N Bf6 Be7 f8R Bd8 Re8 Nh3 Re5 Rg2 Ba6 Nc2 Bc4 Nb4 Nf1 Rb2 Rd2 Nd3 Rh2 Ne7 g8B Nf5 g7 Ng3+ Kg6 h5 Bf7 h4 g8Q Qd4 Qh7 Re8 Kh6 Nh5 Qf5+ Re6 Rd2 Ng5 Rh2 h3 Rd2 h2 Rd1 Na6 b8R h1B b7 Nh7 Ra8 Nac5 b8Q Nf2 Qb5 Bb7 Nb8+ Kc8 d7+ Kc7 Ra6 Ba8 Rd6 Nh3 Qg5 Be7 d8R Nd3 Rh8 Bf3 Qf5 Bg4 Qba5+ Kb7 Qd8 Qc5 Qg8 Qd4 Qgg5 Kc7 Rb6 Ng3 Rd8 Rf2 Rb2 Bc5 Qfg6 Rc6 Rc2 Be6 Q6f5 Nh5 Rb2 Bb6 d6+ Kb7 d7 Kc7 Ra2 Nc5 Re2 Rf3 Rh2 Rf2 Re8 Re2 d8R Bc8 R8e6 Rb2 Rdd5 Qd2 Red6 Qa5 R5d2 Nd3 Bg8 Qb5 Bgf7 Qd5
1n1b4/2K1B2Q/Q3R3/BN1q4/1BbP2rr/nRN2n1p/Bb4N1/bQBB2k1 w - - 0 1 illegal: No possible last move
1r1QbNnN/6KN/2r3bn/2QN1R1B/3pRq2/7k/1rNbBP2/RNB4b w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 Kf7 Kd3 d5 Kd4 b5 Ke5 h5 a4 h4 g4 e6 c4 h3 g6+ Ke7 g7 h2 c6 b4 a6 b3 g5 b2 c7 Kf7 a7 Rh5 g6+ Ke7 a5 Qe8 c5 Qc6 a6 Qb5 c6 Rh8 f6+ Ke8 f7+ Ke7 Be2 Rh6 Nf3 Rh8 Re1 h1B Nd4 Rh3 Nc2 Bd7 c8Q Qb4 c7 Nh6 g8R Rb3 g7 Be8 Bh5 Qg4 Re4 Rc3 Qd3 Rc6 Qb5 d4 Rh8 Qh4 Be2 Ng8 Rh5 Nh6 Rf5 Qg5 Qcb7 Kd7 g8N Qf4+ Kf6 Bb4 Kg7 e5 c8N+ Ke6 Qc7 Bd2 Nce7 Nd7 Nf6 Rb8 Nh7 Nf6 a8B Nfg8 a7 Rbb6 Re3 e4 Ng6 Rb7 Bh5 Rb8 Re2 e3 Qc5 Rb4 Nh8 Rb8 Re1 e2 Q7a5 Nf6 Qd8 Nfg8 Rg1 e1R Rg4 Re2 Rh4 Rd6 Baf3 Ra6 a8N Rc6 Nba3 b1B Nb6 Rcc8 Nd5 Rc6 Ncb4 Bd3 Nbc2 Be4 Nb1 Bd3 Rf6+ Ke5 f8N Bdg6 Re6+ Kf5 Re4 Re3 Rh3 Reb3 Be2 Rb2 Rf3 Ne7 Nhf6 Kg5 N6h7+ Kh4 Qc7 Neg8 Qc8 Qg4 Rf5 Kh3 Qd8 Qf4
1B1Qrn2/1K2BBrR/R1r3R1/bk2n2B/3p4/q1rPQB1N/b6n/1NN4B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 hxg5 c4 exf5 c3 bxc3 Nf6 c4 Ng8 c5 Bg7 Nf3 Bh6 Ng1 Bf8 Ke2 e5 Kd3 d5 c4 Kd7 f4 a5 g4 h5 c6+ Kc7 c5 a4 f6 d4 Kc4 h4 d3 h3 g6 a3 f7 a2 g5 h2 f5 e4 f6 e3 g7 e2 g6 e1R Qf3 Re5 Ne2 Ra5 Bg5 Bh3 b6+ Kc8 b7+ Kc7 Nc1 Ra3 Kb5 Bf5 Qe3 Bh3 Be2 Qd7 Bf3 Nh6 g8R Qe6 g7 Be7 f8N Rc3 f7 Rd5 Ng6 Qd6 f8Q Nd7 Ka6 Bg2 Nf4 Bd8 Nh3 Ng4 Be7 Rg5 Qe8 Nf8 b8B+ Kc8 Ka7 Ne5 c7 Rg6 Bh5 Bd5 Bf3 Ne6 Qf8 Kd7 c8B+ Kc6 Bb7+ Kb5 c6 Ba5 c7 Qa3 Qd8 Nf8 c8B Rgc6 Bcg4 Bb3 Bh5 Bc4 Rg1 h1N Rg6 Ng3 Ka8 Rh7 Rh8 Nf1 g8B Rg7 Bf7 Nh2 Bh1 Rc8 Bbf3 Rc6 Rh7 Bb3 Nd2 Bc4 Kb7 Bb3 Rb1 a1R Rb2 Rb1 Ra2 Rb2 Nb1 Re2 Rd6 Re1 Rg2 Ba2 Rgg6 Rc8 Ra6 Re2 Qc7 Rec2 Qd6 Re8 Qc7 Rc6 Qd8 R2c3
2QQqB2/R1RK1b1B/7n/1nB1kp2/RPnb3n/rrB1BQ2/7N/3BbN2 w - - 0 1 illegal: No possible last move
n2rRr2/3BBkN1/N2p1bRR/3b1q2/2N1Q1rn/1PB2B2/1K2b3/r1B3BQ w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 e5 Kc3 h5 f4 a5 g4 d6 b6 h4 g6 e4 b3 e3 g5 e2 c6 e1R b7 h3 c7 h2 g7 a4 f6 a3 g6 a2 f7+ Ke7 f5 Re4 f6+ Ke6 Nf3 Rhh4 Ng5+ Ke5 Na3 Qe7 Be2 Nc6 b8B Re3+ Kb2 Rhe4 c4 Rc3 c5 Rea4 Nc2 Rg4 Ne6 Rg5 Nb4 Nh6 g8R Rc4 g7 Rf4 Bf3 Bb7 c8B Rgg4 Ba7 Qd7 Na6 Qe8 Bd7 Nd8 c6 Rd4 c7 Rb8 c8N Be7 f8B Nf5 f7 Kf6 Nb6 Bd5 Nc4 Rdf4 Bg1 Nh4 Qd4+ Kg6 Qe4+ Rf5 Rb1 a1R Rh8 Bg5 Be7 Qf8 Bf6 Ra8 Bc3 Bf6 g8Q+ Bg7 Nd4 Ne6 Qh7+ Kf6 Rg8 Nc7 Ne6+ Ke7 Qh8 Bf6 Rg6 Rd8 Qh7 Na8 Qh5 Qg8 f8B+ Kf7 Ng7 Qh7 Be7 Rff4 Ba7 Rf5 Re1 h1B Bg1 Bg2 Re3 Bf1 Re2 Ng2 Qh1 Nh4 Rh2 Ng2 Rhh6 Be2 Bd2 Nh4 Re1 Rff4 Bc1 Qg8 Rh8 Qh7 Re8 Qh5 Rf1 Qg5 Rf2 Qf5 Rh2 Ng2 Rh5 Nh4 Rhh6 Be5 Bc8 Qh5 Bf8 Kg8 Be7+ Rf8 Qb1 Kf7 Qe4 Qf5 Bd7 Bf6
R4b2/N3R1Pb/1Rr4k/1BrQ4/r1QB1N1p/b2B1b2/2nn1q1B/KB3QB1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 c5 Kd2 a5 Kc2 f5 g4 Kf7 b4 Kg7 Kb2 h5 e4 f4 b6 f3 e6 c4 d6 a4 d7 h4 b5 f2 g6 Ne7 d5 Ra7 d6 Rh7 b7 Nec6 b6 Nd4 g5 Ra8 e7 Qe8 d8Q Be6 d7 Nf3 e5 Ra5 Nh3 Bf7 e6 Rh6 Be3 Na6 b8R Nd2 b7 Nf3 Na3 Ng1 Nf4 Nc7 Bd4+ Re5 Nb5 Rh5 Na7 Nb5 Bd3 Nf3 Re1 f1B Ra8 Bg2 b8B Bf1 Rb1 c3+ Ka1 Na3 Rb6 c2 Re4 Bh3 Qf1 c1B Qc8 Qd8 e8B Bg8 e7 Rh6 Qc4 Bg2 Re2 Qc8 d8B Bh7 Bb5 Nd2 e8B Qf5 Bed7 Qf7 B7f5 Bf3 Bg1 Rc5 Re7 Bd1 Bb1 Bf3 Bfd3 Nc2+ Ka2 Nd4 Ka1 a3 Bdc7 a2 Be5+ Kg8 g7 Rhc6 Qd5 Ba3 Qc4 Bf5 Bbd6 Kh7 g6+ Kh6 g8Q B5e4 g7 Bh7 Nh3 Qf4 Qgd5 Qh2 Bc7 Qf2 Beh2 Bb4 Bce5 Nc2+ Kb2 a1R Nf4 Ra4 Bd4 Ba3+ Ka2 Ne1 Ka1 Nc2+
3QB3/B2Pbp2/b2Nn1rb/3R1rk1/3BBN2/R1K2r1r/3q1Q1n/3QB1BN w - - 0 1 illegal: No possible last move
B6k/2KB1Rb1/1nb3bN/R3N3/q1RQ4/4r2N/p2B2NP/Q1nbrNNq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 d5 Ke3 g5 Kd4 f5 e4 Kf7 c4 Kg7 b4 a5 b6 f4 e6 g4 Ke5 f3 c6 a4 h6+ Kh7 b7 f2 b5 d4 b6 d3 e7 a3 e8N d2 c5 g3 c7 g2 c6 Nf6 Ng7 Qe7+ Ne6 Qb4 Nf4 Qa4 Nfh3 Na6 b8N Bb7 c8N Bb4 c7 Be7 Nd6 Bc6 c8R Qc4 b7 Qb4 Nf7 Bd5 Rc4 Kg8 h7+ Kg7 Nh6 Rf8 h8N Qb3 Ng6 Qb4 Nh4 Qa4 Nd7 Ra7 b8Q Bb7 Qd6 Kh8 Qd4 Bc6 Qe1 d1B Nd2 Bd8 Kd6 Nb4 e5 Na2 e6 Re8 Ne5 Nd5 e7 Nb6 Be2 f1B Bf3 Bfe2 Nf1 Bd3 Bd2 Bg6 Be4 Nc1 Ra2 Rg8 e8B Bf6 Bd7 Re8 Ra1 Ra5 Kc7 Bg7 Ra2 Bb5 Ba8 Bc6 Qef2 Rd5 Qa1 Rd3 Qfd4 Rf3 Rb2 a2 Rb5 Re3 Ra5 Re4 Ngf3 g1Q Ng2 Qe3 Nfg1 Qe1 Ng8 Re2 Nh6 Re3 Ng3 Rf8 Ngf3 Rf5 Rf1 Rf7 Rf2 Qh1 Nfg1 Re1 Nf1 Rf4 Rf3 Rfe4 Rf7 R4e3
1N6/2B1q2R/P2q1QBp/3R2RN/4KN1r/1Q4q1/Q1Rrb1Rn/1qbkn1R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 a4 Ke5 g4 Kd4 a6 c5 a5 e5 g6 b5 g5 b4 f6 c4 a7 c3 g7 b3 d6 b2 d7 c2 g6 Qc7 d8R+ Bd6 f7 Qb6 f8R Qc5 Ne2+ Kd3 Ng3+ Kd4 Nh5 Ne7 g8R Qb4 g7 Na6 Nc3 b1Q Bd3 Qa2 Ne2+ Kd5 Nef4+ Kd4 Bg6 Kc4 d4 Kb3 d5 Nc5 a6 Bd7 Rf5 Qb1 Rg5 e4+ Ke3 Bc7 d6 Bb5 d7 Nd3 f3 Rb8 a8R Ne1 Rhg1 h6 Ra2 Nc6 Ra7 Ne5 Bd2 Qa3 Ba5 Be2 Qd2 c1Q Rc2 Bd6 Bc7 Qd1 Kd4 e3 Ke4 Ng4 Qa5 Qc5 Qa2+ Kb4 Rg2 Nh2 Rgf8 Bf1 Nd3+ Kb5 g8Q e2 f4 Qb4+ Rc4 Be7 f5 Bf6 Be5 Nef3 Kf4 e1Q Qd5 Be7 f6 Be2 f7 Qg3+ Kf5 Rb6 Bf4 Rf6+ Ke4 Qbb1 Rc1 Ne1 Rc8 Nc2 d8N Qd2 Rcg1 Ne1 Bd6 Rg8 Nc6 Rf4+ Ke5 Qdb4 Rfd8 Rh4+ Ndf4 Qba3 f8Q Ka4 Qf5 Re8 Rdd7 Rd8 Nb8 Kb4 Rcc7 Kc3 Qf6 Qc6 Qd1 Qab4 Qda4 Qa3 Q2b3+ Kd2 Rc8 Qb7 Rc2+ Kd1 Qa5 Qc7 Ke4 Bf8 Rh7 Qb6 Be5 Rd2 Rad7 Qd8 Rd5 Bg7 Qf7 Qae7 Qaa2 Qdd7 Qe6 Bf6 Bc7 Bb2 Qe5 Bc1 Qe6 Qed6 Qf6 Q7e7+
b2bNq2/1n1b2QP/knr1b2R/7q/4BRN1/pN1K1B1B/QQrB4/B5B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 h4 d5 e4 Kd7 b4 Kc7 c4 Kb7 h6 a5 h7 f5 e6 f4 b6 g4 b5 d4 e7 g3 e8Q f3 h5 g2 e5 f2 e6 a4 e7 d3 h6 a3 Qg4 Nc6 Be2 f1B Qg7 Qd4 Nh3 g1Q Nf2 Bg4 Bf3 Qd8 Qef7 Ra4 e8N+ Bd7 Ng4 Kb8 b7 Ka7 b8B+ Kb7 b6 Ra7 Bh2 Qg3 Bg1 Ka6 b7 Qe7 b8Q Na5 c6 Be2 c7 Nb7 c8B Qd8 c5 Qg2 c6 Qh2 c7 Be7 Qa2 Qh5 Ke3 Ra8 Nd2 Nf6 Nb3 d2 Rb1 d1B Bd2 Rg8 h8B Bc4 h7 Bce6 Kd3 Nd5 Be4 Bf3 Rf1 Bg2 Rf4 Nb6 Bf3 Rf8 Rh4 Rf6 Rh3 Qg5 Rh6 Qh5 Be4 Rf5 Bf3 Rc5 Be4 Rc2 Bf3 Bc6+ Bd7 Bg5 c8B Qe7 Qbe5 Qf8 Qeb2 Bd8 Be4 Ba4 Bdc6 Bh1 B8d7 Rc8 Bf3 Bg2 Bce4 R8c6 Nf2 Bf7 Bh3 Be6 Ng4 R6c5 Qe7 Bad7 Bhd4 Rc6 Qg7 Na8 Qc1 Nb6 Ba1 Bh1 Qcb2 R6c5 Bf5 Na5 Bd1 Ba8 Bf3 Nb7 B5e4 Rc6
Kr2rq2/P2QR2n/3bN3/4R1RN/qR3Bb1/QRB3N1/B1R4p/1r1k1rn1 w - - 0 1 illegal: No possible last move
R1Bk1q2/2n1b3/Bp1B1Q2/1PK2b2/bN4qQ/BB1NR2b/4r2b/BQ3Rr1 w - - 0 1 illegal: No possible last move, all moves rejected
1B4Q1/qq2bNpR/Q3R1q1/QBqk2P1/1q2r3/7N/K1r2N1N/Nn1NR1n1 w - - 0 1 illegal: No proof kernel
rN1R4/8/1RB1Q1nk/Q2KB2N/bbn3pN/QNqbq1P1/5B2/N2q1N1q w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 g5 exf5 g4 h4 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Bd7 Ra2 Be6 Ra1 Bc8 Ke2 Kf7 Kd3 Kg7 Ke4 e5 b4 c5 d4 h5 f4 c4 g3 h4 d6 c3 g6 h3 b6 h2 b5 a4 d5 c2 b7 a3 f6+ Kh6 d7 a2 f7 Na6 b8N Qe8 d8Q Bb4 f8N Kh5 g7 Bb7 b6 Ba5 f5 Bb4 f6 Bd2 f7 Be3 Ne2 Bg1 Ng6 Bd4 f8Q Ne7 g8N Bf2 Nd4 Nc7 Bb5 Rh7 Be3 c1Q Bc6 Ba8 b7 Rg7 d6 Ncd5 d7 Be1 Nh4 Qf7 Qb3 Ng6 Bf2 Qe6 Qfa3 Ne3 Nc2 Nc4 Nd2 Qd1 Nf1 Bb4 Rb1 a1Q Qda5 Qc3 Nf6+ Kh6 d8N Rg8 Na1 Rh8 Rg1 h1B+ Rg2 Qe7 Nh5 Qc5 Ne6 Q5e3+ Kf5 e4 Nd4 Rd8 Ke6 Rc8 Rh2 Bf3 Rh3 Be2 Kd5 Bd3 Qba2 Rf8 Ndb3 Re8 Na6 Rg8 b8B Bb7 Be5 Ra8 Nb8 Bc8 Be8 Bd7 Qe2 Ba4 Bc6 Qf3 Qe3+ Qf4 Qeb6 e3 Qba6 e2 Qc8 e1Q Qe6 Qf6 Ng2 Qe3 Nc5 Nb2 Ng7+ Kg5 Rh8 Nc4 Rd8 Kh6 Nh5 Qh4 Rb3 Qh2 Nh4 Qh3 Qb2 Ba3 Rb6 Qh2 Ncb3 Bb4 Qa3 Qh1+
1bNR4/2Rb3B/RBn5/q2K1Q2/1nrbp3/Rn1bPQR1/R2N3k/1N1Q3n w - - 0 1 illegal: No possible last move
2N4Q/1n1bKQN1/4N3/r1n2nbB/N5Bp/NbpQ4/1R1R2PB/k1r3Nq w - - 0 1 illegal: No possible last move
bq1nk3/1r3R1R/n1NQ3N/b7/N1BPNN1Q/r1B1B2p/2N1K1pb/r6Q w - - 0 1 illegal: No proof kernel
1q1Bb3/r7/NQr1QbnB/2QN1K1B/N1Rp1Q1n/1b1QPRrQ/p7/4k3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Ke3 Ke6 Kf4 f5 h4 a5 c4 d5 b4 a4 c6 a3 b6 a2 c5 g6 h6 d4 h7 Kd5 h5 Kc4 c7 Ra4 e6 Qe8 e7 Ba6 c8Q Qb5 e8Q Bb7 h6 Bd5 c6 Ra6 c7 Ra5 b7 Nd7 b8N Ngf6 Qe3 Qa6 b5 Ba8 b6 Bc6 b7 Qa7 Nc3 Be7 Rh3 Ng4 Nd5 Nde5 Na6 Qb8 Qe6 Bf6 Rf3 Rc8 h8Q Be8 h7 Ra3 Qe4 Ne3 Qb1 Ra4 Qbb6 Ra5 Qf8 Ra4 h8B g5+ Kg3 g4 Kf4 g3 Qd2 Qa7 b8Q g2 Bg7 Ra5 Bh6 Qa8 Q8a7 Qb8 Ba3 Ra4 Be7 Ra5 Bd8 Ng6+ Kg3 f4+ Kh3 Nc2 Kg4 Ne1 Kf5 Ra4 Re3 f3 Rc1+ Nc2 Qfd6 f2 Qf4 Ra3 Rf3 Ra5 Nh3 g1R Ng5 Rg3 Ne4 Ra3 Bh3 f1B Nec3 Ne1 e3 Ng2 Bg4 Be2 Qc2 Bd1 Bh5 Ra5 Qcb3+ Kd3 Na4+ Ke2 Qd3+ Ke1 Rc4 Bb3 Qc5 Ne5 Qab6 Ng6 Nab4 Ra8 Na6 Ra7 Be7 Rd8 c8Q Rd6 Bd8 Rc6 Qcc7 Qc8 Qg4 Qa8 Qcf4 Qb8 Qh3 N2h4+
R2B1RrN/RqR1b1k1/N1n5/3rrQPB/1nb2Qp1/RQ5p/1KBR2n1/8 w - - 0 1 illegal: No proof kernel
R1Q1Qb1n/1R3b1B/2R1N2p/RpR4P/5rRr/qK1nn3/N3Nr2/3kBB2 w - - 0 1 legal: proof: d4 a5 f4 d5 b4 g5 bxa5 e5 dxe5 d4 fxg5 d3 cxd3 Qf6 d4 Qe7 d5 Qd8 Kd2 Kd7 Kc2 f5 e4 b5 a4 c5 g4 h6 h4 f4 g6 c4 a6 c3 d6 Ke6 d7 f3 g7 f2 a5 Be7 h5 Bf8 g5 Ra7 g6 Qc7 d8N+ Ke7 e6 Kf6 e7 Ke5 e8R+ Be6 Re7 Qd6 Bd2 Kd4 e5 Qc7 Qc1 Nd7 Ne2+ Kc4 Be1 Bh3 e6 Rb7 a7 Kb4 a8R Ne5 a6 Nd3 a7 Qc5 Rf7 Ne7 g8B Rd7 g7 Rd4 Rb8 Ng6 a8R Rh4 e7 Be6 Rf5 Bf7 e8Q Rh7 Rb7 Nh8 R1a5 Qc6 Kd1 Kb3 Rc5 c2+ Kd2 Qc8 Nbc3 Qc7 Ne6 Qc6 Qa1 c1R Na2 Rcc4 Qc1 Rcf4 Rg1 Qc8 Rg4 Qc7 R8a6 Qc8 Rac6 Qc7 Bh3 f1N+ Kd1 Ne3+ Kd2 Ng6 Bf1 Rh8 Bh7 Rg8 Rcg5 Nh8 Qc5 Kb2 Qf5 Kb1 Kc3 Rf2 Kb3 Rf4 Rd6 Qc1 Rc6 Bd6 Re7 Rd4 Rg3 Bg6 Nc5 Rf8 Qfc8 Rf2 R3g4 Rdf4 Ne6 Ba3 Rea7 Bf8 Rd5 Qd2 Ra8 Qc1 Rd7 Bf7 g8R Bc5 R8g5 Bf8 Rgc5 Qc4+ Ka3 Kc2 Re7 Kd1 Rb7 Qc1+ Kb3 Qa3+
r2RR1Q1/4R3/1B2p2K/rNbQ2r1/nR2qk1N/Rn1P1B2/b1p1b1Q1/B4R2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 h5 Kf4 a5 b4 c5 g4 e6 d6 a4 g6+ Kf6 g5+ Kg7 b6 c4 b7 a3 b5 h4 b6 c3 d7 a2 Na3 h3 Nb5 h2 Bg2 c2 Bf3 Ne7 f6+ Kg8 g7 Kh7 g6+ Kh6 g8Q Nf5 f7 Qf6 d8R Nc6 b8R Ncd4 b7 Ra4 g7 Kg6 Bb2 Bb4 f8R Qf7 Rfe8 Bd7 Re7 Qe8 Rbc8 Rh6 b8R Qf8 Rc4 Ba3 Rb4 Nb3 Bd4 Qf6 Bb6 Nc5 Rde8 Ra5 Rbd8 Rh5 d3 Qf7 Qe1 Bc8 Qe4 Na4 Qd5 Nd4+ Kg4 Re5 Kh4 Kf5 Rf1 Qf6+ Kh5 Qf7+ Kh6 a1R Be4+ Kg4 f4 Bd7 f5 Bc6 f6 Nb3 Nf3 Rg5 Nh4 Ra2 Ra1 Kf4 Rhg1 Qf8 f7 h1B Rgf1+ Bf3 Rc7 Kg3 Rce7 Be2 Bf3 Bb7 Rf4 Bc5 Rb4 Rb2 Ra3 Ra2 Red7 Qd6 f8B Qe5 Bd6 Qf4 Be5 Ra1 Bb2 Qe4 Rde7 Kf4 Bd4 Ra2 Ba1 Bc6 Qh8 Ba8 g8Q Bb7 Qhg7 Ba8 Qc4 Bd5 Qcd4 Bc4 Qd5 Ra8 Rb1 Rg6+ Kh7 Na5 Rf1 Nb2 Rab3 Ra4 Rc3 Ba2 Ra3 Nb3 Qc6 Rg1+ Kh6 R4a5 Qd5 Na4 Qg6 Rg5 Q6g7 Re5 Qg2 Rg5
1nkr3N/R1p1q1B1/b3RRQR/rb6/nR1Q1PRb/B7/n3QN1p/4KB2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kd7 g4 e5 a4 b5 d4 h5 d6 e4 a6 h4 f6 h3 g6 b4 g7 e3 a7 e2 d5 b3 g5 b2 g6 Rh4 a5 Rh6 a6 Ne7 g8R Nbc6 g7 Rh5 f7 Rg5 Na3 b1B Nb5 Nb4 Ba3 Be4 Rb1 Na2 Rb4 Rb8 a8R Bf3 a7 Nc6 Qd4 Be7 f8R Re5 Rf6 Nc1 Re8 Bh5 g8Q Bf8 Ree6 Bb7 Qg6 Ba6 Qb2 Kc8 d7+ Kb7 d6 Qc8 d8Q Rf5 d7 Na2 Qe7 Qe8 d8B Bf3 Qd4 Kc8 Rh2 Bg7 Rg2 h2 Nh3 Bh6 Rg4 Bg5 Nf2 Qd7 Qee8 Bh4 Be7+ Qd8 Bf8 Bd5 Bg7 Bc4 Qh5 Rd5 Qeg6 Qe7 Qhe5 Kb7 Qee4 Rbd8 Qg2 Nb8 Nd6+ Kc6 Qf3 Kd7 Nf7 Bcb5 Nh8 Kc8 Kd2 e1N Qe2 Nd3 Kd1 Nc5 Kd2 Kb7 Ke1 Nbd7 Rc8 Nb8 a8R Rg8 Rd8 Na4 Rdd6 Kc8 Ra7 Rc5 Rd5 Rd8 Rh5 Bd3 Rh7 Ra5 Rh6 Bdb5
Q4rQ1/1P3Bpn/qpQN1Q1Q/3nb1n1/B4r2/3bQ3/1k1K2R1/rN1RB2N w - - 0 1 illegal: No proof kernel
5RNk/pr4R1/b1R5/r1BQ1pbB/3RQ3/RK1n1NQR/Pb2Nn1q/4r3 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 fxe5 Bf5 cxd5 Nh6 b4 Ng8 bxc5 Bc8 e4 g5 d4 f5 Kd2 Kf7 Kc3 Kg7 h4 b5 h6+ Kh7 d6 g4 c6 b4+ Kb3 g3 c7 g2 d5 Qd7 h5 Qe6 d7 Ne7 d8Q Nd7 Qg4 Qb6 d6 Qb8 e6 Ng6 e5 Bb7 c8R Ba6 e7 Rg8 e8Q Rg7 e6 Nb6 e7 Nd7 Qg3 Qb7 Nc3 Rf7 Rh3 Kg8 h7+ Kg7 h8R Bb5 Nce2 Qf3+ Be3 Qf4 Rc6 Rb8 Nf3 g1B Bc5 Nf6 d7 Bd4 Rg8+ Kh7 h6 Ng4 Rc1 Bb2 Rg7+ Kh8 h7 N6e5 Rc3 Nf2 Qa5 Ba6 d8R Rf6 Rd4 Ned3 Qad8 Re6 Qd5 Rb7 Qa8 Qd2 e8N Re5 Nf6 Qf4 Ng8 Be7 Qe4 Bg5 Qd8 Qd2 Qdd5 Qf4 Ka4 Qd2 Ra3 b3 Bg2 Bc3 Bf1 b2 Bg2 b1R Bh1 Rf1 Bg2 Bb4 Kb3 Re1 Nf4 Re3 Rgc7 Qc1 Bf8 Nh1 Qf7 Bh4 Nd2 Qg1 Bf3 Re1 Ne2 Nhf2 Bh5 Ra5 Nf3 Qh2 Qfd5 Bc3+ Bb4 Bg5 Rf7 Bb5 Bc5 Bb2 Rf8 Kg7 h8R Qg1 Rhh6 Qh2 Rhg6+ Kh8 Rg7 Ba6+
1r1Q1rNk/1B3Q2/1RN2bbB/2nBB3/1p1pQ2P/R1R1nKB1/2n1q1Bq/8 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 a4 b5 f4 g5 h4 Kg7 c4 e5 h6+ Kh7 a6 d5 c6 e4 a7 g4 a5 e3 f6 g3 c5 g2 f7 Nf6 a6 Ng4 f5 Bd7 f6 Bg7 f8B Qa5 f7 Qa3 c7 Qa2+ Nd2 Be6 c8R Qb2 c6 Bf6 c7 Bd8 Nf3 g1Q Bd6 Qd4 f8Q Qb6 Ra3 Bg8 Bg2 Qa5 Ne5 Nc6 Kf3 e2 Ne4 Nb8 Nc6 Qgb6 Nf6+ Kg6 h7 Qe1 Bg3 Nd7 Bh6 Bf7 Ng8 Rb8 a8Q Nc5 a7 Bf6 Qb3 d4 Qd8 Qd2 Rb1 Qa6 Qb7 Qa2 a8B Ne3 Qbd5 Be8 Qe4+ Kf7 Rbb3 b4 Rc3 Qe6 Qa7 Qh3 Qb7 Qh2 Qa7 Rb7 Rb8 Rb5 Rb6 e1N+ Kf4 N1c2 c8B+ Bd7 Bcb7 Bf5 Kf3 Bg6 Nge7 Rf8 h8B Bg5 Bhe5 Bf6 Bg5 Kg7 Bh6+ Kh8 Ng8 Na1 Bc8 Nac2 Qf7 Qb7 Be6 Qe7 Bd5 Qe6 Rba6 Rb8 Bb7 Qe7 Rb6 Qe8 Na5 Qb5 Nc6 Qe2+
4n3/1r6/1NRKRRpp/bq1bRNB1/2PQ1N1Q/r6R/kqn1BQ2/5n1R w - - 0 1 illegal: No proof kernel
1B1N3q/2q1R3/R1RKp3/R3N1pQ/RRB1r3/nbn4B/Q3n1PQ/1bk3r1 w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 f5 exf5 b4 h4 g6 h5 b3 h6 Bg7 hxg7 Ba6 axb3 Qc7 b4 Bc8 b5 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 a5 Kd5 h5 f4 g5 c4 a4 b4 d6 c6 a3 b6 h4 c7 a2 b7 h3 c5 h2 c6 Qd7 b5 Nh6 g8Q Qe8 b6 Qg6 Qh5 Ng4 Bc4 Ra4 Ne2 Rb4 Nd2 Ne5 Nf3 Rh7 Re1 h1N Ned4 Na6 b8R Rb1 b7 Rh6 Ne6 Nc5 Nd8 Qg7 Bd2 Bd7 c8R Ne4 c7 Nhg3 Ra8 Qh7 b8R Ne2 Ra5 Rd1 Qh2 Rh4 Rb4 Be8 Rca8 Bg6 c8B Qh8 Rc1 a1Q R8a6 Qc3 Rca1 Bh7 R1a4 Ra1 Rc1 Bg6 Rc2 Rg1 Be3 Rg4 Ba7 Bh7 Bb8 Rh4 Bd3 Qc7 Rcc6 Nc4 Ne5 Na3 Bc4 N2c3+ Kd4 Ng3 Qe8 Rg4 Qeh5 Bg6 B8e6 d5 Kc5 d4 Bd7+ Kg7 Bc8 d3 Bd7 d2 f6+ Kf8 f7 Kg7 f8R d1B f5 Bb3 Rf6 Nge2 Re6 Re4 f6+ Kg8 f7+ Kg7 Rd6 Bh7 Bh3 e6 Rd7 Kf6 Re7 Bg6 Ng4+ Kf5 f8Q+ Qf6 Qh1 Kf4 Ne5 Ke3 Qh2 Qh8 Qf1 Kd2 Qa1 Kc2 Qa2+ Kc1 Rbb5 Rf4 Rb7 Bb1 Rbb4 Qc8 Kd6 Re4 Qh6 Qb7 Qh5 Qc7+
1RQ1r2Q/1bBK1bB1/1BPR4/p1qn1NNN/7b/1B2R3/Brp1n3/k2q3B w - - 0 1 illegal: No proof kernel
1NQb4/1rn1kb2/P2Nr3/3RQ1N1/2p1NRB1/1p1N1B2/n3K2Q/BqNb3q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 e5 a4 b5 f4 c5 g4 h5 d6 e4 a6 h4 d5 b4 d7+ Kf7 g6+ Ke7 d6+ Kf6 a7 b3 g7 c4 a5 e3 g5+ Kf7 g6+ Kf6 a6 h3 Nc3 h2 Qd5 e2 Bh3 Qa5 d8N Bb7 d7 Rh6 Nc6 Bc5 d8N Nd7 Nb8 Ne7 g8Q Rh4 g7 Rh7 Qh8 Qb6 g8Q+ Rg7 Nf7 Ba3 Nd6 Qa5 Qc8 Qa4 Bb2 Qc6 Rd1 Ng6 Bg4 Bb4 Ba1 Ba3 Nce4+ Ke7 Qh6 Ndf8 Qe5+ Ne6 Rd5 Rg8 Qh3 Re8 f6+ Kf8 f5 Nc7 f7 Nf4 Kf2 e1Q+ Kf3 Qd1+ Ne2 Nd3 Rf1 Qb1 Nc1 h1B+ Ke2 Nb4 Qhh2 Na2 Rf4 Bb4 Qg7+ Ke7 Qe5+ Ne6 f8N Ba5 Nh7 Bd8 Nhg5 Bf3+ Kf2 Bd1 Ke3 Bc2 f6+ Kf8 f7 Nc7 Kd2 Re6 Ke2 Ke7 f8N Qe8 Nf3 Qh5 Nh7 Bc6 Nhg5 Be8 Ne1 Bf7 Ned3 Qh6 Nd7 Rb8 a8B Qh4 Bc6 Rb7 Nb8 Qg3 Bf3 Qg1 Bd7 Qh1 Qb2 Re5 Bdg4 Re6 Qe5 Bd1+
1B6/2N2Qpr/1K1kN3/1B5N/N1bNq1q1/3brQPr/n1RB1Np1/1nR3R1 w - - 0 1 illegal: Other
N2QnR1N/QB1n1pK1/1Q3P1r/r3b3/1Bp1Rb2/8/1R3q1R/Rq1kb1BR w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 Kd7 d4 Na6 d6 Ke6 d7 Kd6 Be2 Nb8 Bd3 Ke6 Bf1 Kd6 d5 Ke5 d6 Kf6 Bh6 Bb7 Bc1 Bd5 exd5 Qe8 Na3 Qc8 Nb1 Qd8 Ke2 Kf5 Kf3 a5 b4 g5 h4 e5 h6 c5 b6 c4 h7 a4 b7 a3 b5 a2 h5 Qc7 d8Q Ra3+ Qb3 Nf6 d7 Rg8 h8B Na6 b8Q Ra4 d6 Nh7 b6 Nb4 h6 Qa7 b7 Qa5 Bg2 Nd5 Ne2 Nhf6 h7 Ne8 Ba3 Ne3 Nf4 Be7 Qa7 Rg7 b8R Bf6 Ng6 Rb4 Nc3 Qb6 Nb5 Ra4 Bb4 Ng4 Nc7 Ra5 Na8 e4+ Kg3 e3 f4 e2 Bb7 e1B+ Kf3 Ke6 Ke4 Qf2 Qb1 Be7 f5+ Kf6 Qb3 Ne5 Qbe3 g4 Qeb6 Kg5 Rh2 Rg8 Rh1 Nd3 Bd4 g3 h8R Kg4 R8h2 g2 Nh8 Nc5+ Ke5 g1Q Be3 Bg5 Bd4 Bgd2 Be3 Nc7 Kf6 Re8 Bd4 Bf4 Kg7 Re6 Be3 Rh6 f6 Qc2 Bd4 Qb1 Be3 Qg2 Bg1 Qf1 Qe8 Kg3 d8R Qf2 d7 Kg4 Qe7 Kg3 Rf8 Ne8+ Kg8 Kg4 d8R Nd7 Rdc8 Kg3 Qed8 Kg4 Rc6 Kf3 Rc5+ Ke2 Re5+ Kd1 Re4 Qc1 Rb1 a1B Rb2 Nd6 Kg7 Qb1 Ra2 Bd4 Ra1 Bde5 Rc8 Bb2 Rc5 Bbc3 Rg5 Bce5 Rgg2 Qe3 Rga2 Qf2 Rb2 Ne8+
4N1Q1/1n1p2RR/2B1Q1N1/6KQ/q1P1R1q1/3p1Nb1/N1nBb1rr/N1Nk3b w - - 0 1 illegal: Other
3Q2q1/Q1pBr1Q1/p2nN3/3br1P1/1Q3NBk/2Q3Nn/1q2r3/RKRQb1B1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 g4 e5 d4 h5 Kd2 h4 Kc2 h3 b4 a6 f6 Kg6 d6 h2 b6 e4 b7 e3 b5 e2 f5+ Kh7 d7 e1R d5 Re3 g6+ Kh6 g7 Kg5 f7 Ra7 f6 Ba3 f8Q Qe7 d8Q Kh4 d6 Be6 f7 Ba2 g5 Bb4 d7 Be6 b6 Nf6 g8B Ng4 Bh3 Nf6 Ne2 Rb3 Nf4 Nh5 Qg7 Ra8 f8N Nc6 b8Q Ba5 b7 Rb5 Bg4 Ne5 Be3 Nc4 Qa7 Qa3 b8Q Nd6 Nd2 Rh7 Bg1 Bd5 Ne4 Be1 Qdf6 Rb2+ Kc1 Re2+ Kb1 Qc3 Qb4 Re8 d8Q Re5 N8e6 Qd4 Qgg6 Re7 Qgg7 Qc3 Ng3 Qc4 Nd3 Nf4 Bf7 Qb5 Be8 Nh3 Ndf4 Qc4 Bd7 Qc3 Bd4 Qd2 Rf1 h1Q Bg1 Qg2 Qf5 Qf3 Qd3 Qe4 Q3c2 Qh7 Qd3 Qg8 Qdc3 Qd4 Qdb3 Bf2 Rc1 Be1 Q3a4 Qd2 Qd1 Qb2+
1B3q2/rpRNP1p1/R4qQ1/3k3K/4b1BB/n4nRR/4RQ1b/q1NNR1r1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 f5 e4 c5 h4 c4 a4 c3 d4 c2 h6 f4+ Kg4 f3 d6 Ke6 h5 f2 a6 Ra7 d7 Bb4 h7 Be1 a5 Bb4 d5+ Kf7 e6+ Ke7 h6 Kd6 e7 Ra8 e8R Qc7 a7 Ba3 e5+ Kc5 e6 Bb2 d8R Qh2 d6 Qe5 d7 Qe1 a6 Nc6 Ne2 Bc3 Bf4 c1Q Qd6+ Kc4 Rh3 Nb4 Kh5 Ne7 Rg3 Ng6 Bh3 f1Q Bg4 Qcd2 Nc1 Bd4 Nc3 Nd5 Nd1 Rf8 h8Q Be5 h7 Rf6 Qhf8 Qc3 h8R Rb8 a8N Nh4 a7 Nf3 Nb6+ Kd4 a8R Rg6 R8a6 Ra8 Re7 Qb2 Rde8 Ra7 d8B Qef2 Qc6 Nc3 Rc7 Nb1 Nd7 Na3 Bh4 Qb4 Qf5 Qf8 Qcc2 Q2e1 Qf2+ Kd5 Ra2 Qc3 Re2 Qa1 Rg2 Nh2 Re1 Qf6 Rhf8 Qb1 Qa2+ Kd4 Bf3 Qfd3 Nb6 Qb4 Rce7 Rg4 Qg6 Qdb1 Be2 Rg3 Bg4 Qf7 Rd7+ Kc5 Qf2+ Qd4 Rgg1 Qa1 Rh1 Rg2 Bfg3 Qe7 Rf3 Qf8 Rhg1 Bb8 Bd6+ Kc6 Rh3 Qdf6 Bf4 Bd6 Ree7 Bc7 Rd2 Nf3 Rde2 Bd7 Rf7 Be8 Rd7 Bf7 e7 Bd5 Bfg3 Be4 Bd6 Bd8 Bb8 Rg3 Rg2 Bc7 Rgg1 Bf4 Rc7+ Kd6 Nd7+ Kd5 Rg2 Bd6 Rgh2 Rg1 Rg2 Bh2 Rgg3 Qb1 Re6 Qbb2 Ra6 Qa1
1BrRBn2/4Q1RB/4nNB1/3NB1Br/6Kn/2b3p1/qQnp2bP/3RNk2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 Kf6 b4 Ke5 c4 g5 f6 d5 c6 a5 c5 a4 f7 a3 b6 a2 b5 d4 h6 e6 c7 d3 h7 Kd4 b7 e5 c6 Ra3 b6 Bg7 f8Q Qd7 Nc3 Qe8 Nd5 Bh3 c8B Rb3 c7 Nf6 Bf5 Ra3 c8B Qg6 Qe2 Rb3 Qb2+ Kc4 Bcd7 Rb5 Qe7 Nh5 Be8 Qe6 Bfg6 Nd7 b8N Nf8 b7 Nf4 Nd7 e4+ Kg3 e3 b8B g4 Nf3 e2 N7f6 e1N Rg1 Neg2 Ne1 Rg8 h8B Nh4 Bd2 Ra5 Rd1 a1N Bg2 Rc5 B2e4 Bg2 Bh7 Qf7 Beg6 N4e6 f4 Nc2 f5 Rb5 Bg5 d2 Ne4 Bc3 Bhe5 Rh8 f6 Qg8 f7 Rc5 Nf3 Kd3 Nef6+ Ke2 Ne1 Rc6 Bd7 Rc8 Be8 Nd7 f8R Qf7 Rg8 Ndf8 Rg7 Qg8 Rf1 Qf7 Rf3 Qg8 Rd3 Kf1 Nb4 Qf7 Rd8 Qg8 Nbd5 Qf7 Qea3 Qa7 Qe7 Qa2 Bg8 Rh5 B8h7 Nc5 Kf4 g3 Kg4 Nce6
QBbBBQB1/r1B1q3/4R3/2bR1rB1/2P2NK1/pr3p2/QnkNr3/R5n1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 h4 Kf5 e4+ Ke6 b4 g5 c6 d5 b6 f5 b7 a5 c7 a4 b5 a3 b6 g4 h6 d4 h5 d3 h7 d2 h6 Nc6 b8B Bg7 b7 Nge7 Nh3 Nd5 Nf4+ Ke7 e6 Kf6 e7 Ke5 e8R+ Kd4 e5 Qg5 e6 Ne3 e7 Rf8 h8Q Ne5 h7 N3c4 Rh5 Nf3 Qe2 d1R Nd2 Kc3 Qg2 Rf6 Qf8 Nb2 h8B Re1 Bc4 Ng1 Bg8 Ra7 Qd5 Rf7 Qa2 Bd4 Bf6 Qg7 Kh4 g3 Rg5 g2 Rh5 Kb4 c4 Kc3 Bg5 Re2 Kg3 Be6 c8Q Kc2 Bc7 Bc5 Qa8 Bc8 b8B Qe5 Rh6 Qe4 Rd8 Qe6 e8B Qe7 Rd5 Rf6 Ne6 f4+ Kg4 f3 Bh4 Rf5 Nf4 Nh3 Re6 g1R+ Bg3 Rge1 Bh4 Ng1 Bf6 Re3 Bg5 Rb3 Bf6 Qd6 Bfd8 Qe7 Nh3 Rb6 Nf1 Ba6 Bg5 Bc8 Nd2 Rb3 Nf4 Re2
2b2Kr1/3Q4/k1BBQ1B1/2BRqR1B/2p3Qr/nB5b/1pN1Pbn1/2N2bR1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Kg3 h5 Kh4 c5 d4 Kc7 g4 f5 a4 b5 a6 Kb6 a7 f4 a5+ Kb7 a6+ Kb6 d6 b4 e6 b3 d7 f3 e7 b2 e8B f2 d5 Qc7 d8B Bb7 g6 Rh6 Kg5 h4 d6 h3 g7 h2 d7 Rh8 Kg6 Ne7+ Kf7 Rh4 g8Q Bf3 g5 Rc4 g6 Nd5 g7 Re4 Bf4 Kb5 Bd6 Bg4 Bg2 f1B Nc3+ Kb6 Bf3 Re6 Ra5 Rh6 Na2 Bg2 Nc1 Rh3 B8e7 Nb4 d8R Bc8 Bh5 N8c6 Nf3 Nc2 Ne1 Na3 Rg1 h1B Nc2 Nb4 Bg6 Rb8 a8Q Nd3 a7 Rh4 Qe4 Bf1 a8B Bhg2 Qe6 Ne1 Bac6 Rb7 Qd4 Qb8 Qdg4 Qc7 Qh7 Bh3 g8B Ng2 Bh5 Bg7 Qhf5 Bd4 Kf8 Bf2 Beg6 Ra7 Qd7 Rb7 Bb3 c4 Qfe6 Qb8 Rf5 Ka6 Bc5 Qh2 Bed6 Rc7 Rd5 Qe5 Re8 Rb7 Re7 Ra7 Rf7 Rb7 Rf5 Rc7 Qd8 Rg7 Qdd7 Rg8+
5nBr/2BNKP2/k2NpBB1/2rRb1QN/1Q1B1q2/3n1n1n/1R1p2b1/2B4Q w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 g5 Kd3 a5 Kd4 d5 Ke5 Kd7 f4 Kc7 b4 Kb7 h4 g4 c4 a4 b6 a3 c6+ Ka6 b5+ Ka5 f6 g3 h6 d4 h5 d3 f5 d2 c7 a2 c5 g2 h7 Ba6 Ke6 Ra7 c8Q Qd3 c6 Qd8 h6 Bg7 b7 Kb6 f7 Qd4 f8Q Qc5 c7 Ra8 f6 Ka7 Rh5 Qc3 Bc4 Qd3 Na3 Qg6 Nh3 g1N Rd5 Qd3 Nf4 Ne2 Qh1 Qc2 Nh5 Qd3 Qcd8 Nc6 b8N Bb7 c8B Qg3 Rb1 a1N Nd7 Qf2 Rb2 Rb8 b6+ Ka8 Ba2 Ng1 Nc4 Nb3 Nd6 Nb4 Bb1 Bc6 b7+ Ka7 Bg6 Ka6 f7 Ra8 b8B+ Bb7 Bc7 Qf4 Rd4 Nf6 Rd5 Rg8 h8B Nh3 h7 Nd3 Ne5 Rb8 Bd7 Rc8 Bc6 Ne4 Nd7 Be5 Bf6 Ba8 h8B Bb7 Bhg7 Rh8 Bh7 Ba8 Bg8 Bb7 Nb6 Nd4+ Kd7 e6 Ke7 Nf3 Nd7 Ba8 Ba4 Neg5 Bc2 Nh7 Bb1 Nb4 Bf5 Nd3 Bg6 Bc3 Bd4 Bc6 Bgf6 Bb7 Qh6 Nf8 Qg5 Bc6 Bf2 Be5 Bd4 Rb8 Qe8 Rb5 Qb8 Rc5 Qb4 Ba4 Kd8 Bd1 Ke8 Be2 Kd8 Bf1 Ke7 Bg2
1B1Qn3/BK1BpB1Q/8/Nr1p4/1N2RrRq/2B2k2/1b2nBbP/n2Q1N1n w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 f4+ Ke4 b4 g5 b6 a5 Kb5 a4 c4 g4 b7 a3 f6 d6 h6 a2 c6 g3 c5 g2 h7 Qc7 f5 Bd7 f7 Ra6 f6 Qd8 Bc4 Bf5 c7 Bc8 c6 Ra7 Kb6 Na6 b8B Bg4 b5 Bh5 Nh3 g1N Be3 Bg6 Nf2+ Kf5 Nd2 Nc5 Nd3 Na6 Bf2 Ra8 Kb7 Nh6 c8N Nh3 b6 Nc7 Re1 Bg7 f8Q Ra6 f7 Bf6 Qg8 Ne8 f8Q Bf7 c7 Ng4 Nf1 Ra5 Ba7 Ng1 Re4 Rc5 Nb4 Ne2 Rc1 Bh5 Bf7 a1N Rcc4 d5 Qgg7 Rg8 h8B Bb2 Qh7+ Rg6 Bc3 Qd6 Bg8+ Qf6 Bf7 Qh4 Nd6+ Kg5 c8B Rf6 Rcd4 Rf4 Nc4 Bg6 Na5 Bf5 Bfe1 Nf2 Bd7 Nh1 Bf2 Kg4 Qfh8 Kf3 Q8g8 Nc7 Qd8 Bh3 Rc4 Rf5 Rg4 Ne8 Rce4 Rf4 Ka6 Nb3 b7 Bg2 b8B Na1 Kb7 Rb5+
1N5b/N2rQ3/p5q1/P3rN2/BpbBn2R/Q6N/r1BkNqR1/KRqN4 w - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 c5 fxg5 c4 h4 c3 bxc3 Nh6 c4 Ng8 c5 Qf6 Bd2 Qb6 Bc1 Qd8 g4 Bg7 h5 Qb6 g6 Nc6 g5 Bf8 g7 Nce7 Qd2 Qc7 Qd1 Ng6 hxg6 Qd8 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 c4 Ke4 a4 h5 a5 d5 e6 f5 c6 b5 c5 a6 e7 b4 e8Q+ Ne7 g8N f4 c7 h4 g7 f3 g6 d4 c6 h3 Qd3+ Kd5 e4+ Kc5 e5 f2 e6 h2 Nf6 Ra7 g8N Rh4 g7 Rg4 Nh5 Ra8 Nf4 Rg6 Ngh3 Ra7 Qa3 d3 Ne2 Kc4 Be3 d2 Nbc3 Kd3 Nh6 d1R g8R Re1 Nf5 Rg3 Rb1 Rg2 Bd4 Kd2 Nd1 Qd6 Ka1 Nd5 e7 Be6 c8N Bg7 c7 Nc3 Nb6 Bc4 c8N Qg6 Nd7 Ne4 Nb8 Rd7 Na7 Bh8 Qd8 Rg4 Bg2 f1Q e8B Qf2 Qe7 Rg3 Rg7 Rb3 Bf1 Rb2 Bg2 Rd5 Ba4 Rd7 Bc2 Nc5 Bc6 Ne4 Rf1 h1Q B6a4 Qhg1 Rh7 Q1g5 Rg1 Qge3 Rh4 Qc3 Bcb3 Qc1 Rg2 Ng3 Nef4 Re5 Bc2 Ne4 Ne2 Ra2+
2B5/2N1N2p/3nB2B/Q2pk1K1/1rbRqb2/b1n2Qn1/1qBP2R1/1RB2NB1 w - - 0 1 illegal: No possible last move
5q2/4Rp2/r1qq3R/BQ1R1rkB/QnNQ3r/bBNK1P2/4pR2/1R1b1R2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Nd7 exd7 Kg6 Ne2 Bg7 Ng1 Bf8 Kd2 h5 g4 a5 b4 e5 f3 c5 b6 e4 b5 a4 b7 h4 b8R c4 b6 h3 b7 a3 Qa4 h2 Ne2 a2 Na3 Rh3 Nc3 Qe7 d8Q Ra7 d7 Qf6 d6 Kg7 g6 Kh6 g5+ Kh5 g7 Qe5 g6 Ne7 g8R Nf5 g7 Be7 Re8 Nd4 g8B Kg5 Bh7 Nc6 Bg6 Qg3 Bh5 e3+ Ke2 Ra5 Bd2 Rh4 Bh3 Qg1 Be6 Qg3 Raf1 a1R Rf2 Qf4 Rhf1 h1Q Rh8 Re5 Rh6 Rf5 Qh8 Qe5 d8R Nb4 d7 Qd6 Re8 Qh3 d8R Bd7 Qd4 Bc6 Na2 c3 Bb3 c2 Nc4 c1Q Nc3 Be4 Rd7 Bc2 Red8 Bf8 Re7 Qhh2 Rdd7 Qc6 Rdd6 Qa3 Rd5 Qhd6 Be1 Na6 Bd2 Bd1+ Kd3 Ra2 Rc8 Qab4 b8Q Qbc5 Be1 e2 Qbb5 Ra3 Rb8 Ra1 Qab4 Ra5 Q4a4 Nb4+ Ke3 Ra6 Rb6 Na2 Kd3 Qa3 Rbb7 Nb4+ Kd2 Nc2 Re4 Rh3 Qba5 Rg3 Nb5 Qd8 Ba2 Qad6 Kd3 Qd6c7 Ree6 Bb4 Re7 Ba3 Qab6 Qg8 Ba5 Rh3 Nc3 Q7d6 Qbc5 Qf8 Rb1 Rh2 Bb3 Rh4 Qcb5 Nb4+
4nNN1/r2R1R1N/k3N3/p2Bq1N1/QbN1P3/1Q1KnpB1/p2rQR2/4b2b w - - 0 1 illegal: Other
1B1BQ3/2nb1K1P/2rk1B2/pR1r2B1/N6Q/1pN1QBpq/R2Nqb2/3B1n2 w - - 0 1 illegal: No proof kernel
BN5k/bB1qr1qp/1n1nR3/1Qp3BQ/RbPN4/Q3B2B/p1N5/K2r1B2 w - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 g5 a4 f5 axb5 Bb7 h3 Bf3 gxf5 g4 Nd2 g3 Nb1 Bg4 hxg4 Qg5 Rh5 Qe7 Rh1 Qd8 Rh6 Kf7 Kd2 Kg7 Kc3 d5 f4 a5 b4 g2 Kb2 c6 c4 a4 e4 d4 b6 d3 g5 d2 b5 Ra5 e6 Bd6 f6+ Kf8 e5 Bc7 b7 Qe7 f5 Na6 b8Q+ Qe8 f7 Kg7 b6 Bd6 b7 Qd7 e7 Rd5 f8B+ Kf7 f6 Bc7 e8B+ Ke6 g6 Qd6 f7 Bd8 g7+ Kf5 e6 Nc5 e7 Qe6 Bd7 Ne4 e8B Bb6 Be7 Ngf6 f8Q Ba7 Ne2 g1B g8B Bgc5 Na3 Kg5 Bgf7 Qg4 Nc2 a3+ Ka2 Qg2 Bh3 Rg8 Bh5 Rg7 Bf3 Qg4 Bh1 Kf5 Bf7 Nd7 Bh5+ Rf7 Re6 Rd6 Qbe8 Nb6 b8N Rd4 Bf6 Rb7 Qd6 Re7 Qg3 Bb4 Kb1 c5 Qb5 Ng5 Ba8 Ne4 Ra2 Rd8 Ka1 Rd5 Be8 Rd4 Bec6 Kg6 Bh4+ Kg7 Bcb7 Kh8 Qd3 Qg6 Bg5 Qg7 Qf3 Kg8 Qh5 Kh8 Qe1 d1Q Qc3 Rdd7 Qb2 Qd5 Bce3 Qc6 Qc3 Rd2 Ned4 Qd7 Qd3 Nd6 Rb2 a2 Qa3 Ba5 Rb4 Rd3 Ra4 Bb4 Qg6 Rd2 Qh5 Rd1+
bQKBn3/R1PrQB1r/qB5p/3qBp1N/4pR2/2B3R1/n5Qb/2BkN3 w - - 0 1 illegal: No proof kernel
5Br1/1p3RQQ/1B3N1K/1n2B2r/1B1qB2k/rPp1NRbN/b2B2bp/Q7 w - - 0 1 illegal: No proof kernel
qqB3Bk/r2B1b2/2KRBrp1/1N4P1/pN5N/1nBQ1p2/1R2B3/2Qr2bQ w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 c5 fxe5 g6 d4 Bb7 dxc5 Nc6 h4 Nce7 h5 Nf5 h6 Ng7 hxg7 Bc8 Kf2 f5 Ke3 Kf7 Kd4 d5 e4 h5 c4 a5 b4 f4 g4 a4 c6 h4 b6 h3 c7 h2 c5 Qh4 b5 Qf6 c6 Bd6 g5 Bb4 b7 Ne7 g8B+ Kg7 b8Q Ba6 c8B Bd6 c7 Ra7 b6 Bb5 b7 Bb4 Be2 Rh5 Qa8 Rh6 b8N Bd3 Bb2 Rh5 Qc1 Ba5 Kc5 d4 e6 Rh3 e5 Be1 Ra2 Bc4 Na6 d3 Nf3 d2 Nc3 d1Q Nh4 Bd5 Nb4 Nc6 e7 Qf8 e6 Rf3 Nb5+ Nd4 Bc3 Rb7 Rb2 Qb3 Rf1 Bf2 Rd1 Qd8 e8Q h1R e7 Bg1 Bce6 Kh8 Qd7 Qb8 e8B Qc4+ Kd6 Qc6+ Ke7 Bc4 c8B Rf1 Rdd2 Rd1 Rd3 Rh2 Kd8 Rf2 Qd5 Bb3 B8d7 Ba2 Qh1 Bc4 Qa6 Rff1 Be1 Nb3 Rd4 Rf2 Bc3 Qf3 Qd6 Qc6 Qdd5 Qa6 Qdf3 Qaa8 Qd3 Rf3 Bh3 Bf7 Bhe6 Re3 Ke7 f3 Kd8 Re4 Ke7 Rf4 Rd5+ Qe5 Rd6 Rf6 Kd8 Rb8 Kc7 Rb7+ Kc6 Qf4 Rd4 Qfb8 Rd6 Ra7+
1N3knB/1QpBR3/K1R2rRp/1bB4n/1qrNq2P/p7/3rBQ1Q/1B5B w - - 0 1 legal: proof: d4 e5 dxe5 b5 f4 Be7 a4 Bc5 axb5 Bf8 c4 g5 fxg5 Bc5 b4 Bb6 c5 Nh6 cxb6 Ng8 Kd2 d5 Kd3 f5 g4 a5 h4 h6 e4 a4 e6 f4 e7 d4 Kc4 f3 g6 a3 b7 f2 g5 d3 e5 d2 g7 Na6 b8Q Qd6 g6 Nc5 b6 Rh7 Kb5 Nd3 b7 Qd8 Bb2 Nc5 Qc2 d1Q Nd2 Na6 Rc1 Nf6 g8R+ Kd7 e8B+ Ke7 g7 Nd5 e6 Nf4 Ne2 Nd3 Qa7 Rb8 Nb3 Rh8 Bd7 Ra8 b8Q Qd2 Qbb7 Ndc5 Nbd4 Qd1 Nc6+ Kd6 e7 Qd2 e8B Qd4 Bg6 Q8f6 Nb8 Qe4 Nd4 Ke7 Be2 Qf8 Rhe1 f1R Ka5 Qff4 b5 Ne6 b6 Nb4 Kb5 Nc6 Ka6 Qd6 Qd2 Qb4 Ba1 Ne5 Rc6 Rf6 Qf4 Ng4 Qh2 Nf4 Bh7 Qd5 Bb1 Qe4 Nb5 Qb2 Be6 Ng6 Ka5 Rh7 Bf1 Rf4 Rcc1 Qb3 Na6 Qe5 Qd5 Qf3 b7 Qd4 b8B Qdd3 Qaf2 Qd4 Qb7 Bd7 Ba7 Nf6 Nb8 Nh5 Bg2 Rf7 Bh1 Qc5 Re5 Qe4 Rc3 Rf4 Bg4+ Kf7 Be2 Ne7 Re6 Qd6 Re8 Rf3 Rg6 Ng8 Rc2 Bc6 Bf6 Rd3 Nd4 Rd2 Re5 Bb5 Rc6 Qc5 Qa6 Qc4 Bc5 Ra7 Re8 Rb7 Qb6 Ba4 Ree6 Qc3+ Ka6 Qb3 Qa7 Rb4 Qb7 Rc4 Re8 Qb4 Re5 Ne7 g8B+ Kf8 Be6 Rf7 Bh8 Rf5 Bd7 Rf6 Bb6 Ng8 Re7 Qf5 Ba7 Qe4 Bc5 Bb5+
6qN/r2NBQ1N/n2p1n2/3NB3/Np2N1RR/1Qp1KbbB/1Pn5/k2q1R2 w - - 0 1 illegal: No proof kernel
2N5/Nn1Nqk1N/1p1b2nQ/5K2/qB1N1B1R/1RN1p3/pP1QQ3/n1rb1B2 w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 Nd7 cxd5 Nb8 g3 Kd7 g4 Ke8 a4 h5 gxh5 b6 a5 Na6 Ra2 Rb8 Ra4 Rb7 Ra1 Nb8 a6 Rh7 axb7 a5 Bd3 Rh6 Bf1 Rh8 Ke2 e5 Kf3 c5 Kg4 g5 f4 a4 d4 e4 h4 a3 d6 c4 h6 c3 h7 c2 d5 Kf7 h5 Qc7 h6 Qc3 d7 Qe1 d8Q Bc5 d6 Bd7 Nc3 Ba4 d7 Bb4 f6 Bf8 f5 Qd2 Rh4 Bc6 Nf3 Qe1 Nd4 Ne7 Bf4 c1N Qe2 Na6 b8N Rg8 h8Q e3 h7 Ba8 Nbc6 Nc7 Na7 Ne8 Nc8 Nb3 Rd1 Ng6 Rd2 Bd6 Rd3 Kf8 f7 a2 Qhf6 Qa1 h8B Qd1 Qe6 Bc6 Bf6 Na1 Be7+ Kg7 f8N Qa4 Nh7 Rf8 Qf6+ Kg8 Qh8+ Kf7 f6 Bf3+ Kf5 Rg8 Bf8 g4 Be7 g3 Bf8 Ba3 Bb4 g2 Qc7 g1Q Qd6 Nc7 Qd5+ Ne6 d8N+ Ke8 Qg7 Nc5 N8c6 Nb7 Qh6 Qf2 Qd8+ Kf7 N6a7 Bh5 Qd6 Re8 Qd5+ Re6 Qg2 Rc6 Qd2 Qe1 Qge2 Qed1 Ncb5 Qe1 Rb3 Rc1 Nc3 Qg3 Bc7 Qd6 Bb8 Qe7 Bf4 Kg8 f7+ Kh8 f8N Kg8 Qee1 Kf7 Nd7 Bd1 Qde2 Nf8 Q1d2 Ng6 Ba5 Bc5 Bb4 Bd6
N1R3B1/Bb3B1r/2B1pQ2/1n2r2p/RQ2K1kB/4PN2/3QRp2/brbB3n w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 h4 Qd6 g4 Qb4 g6 Qd6 h5 Qb6 g7 Qc6 g5 Qg6 hxg6 Kd8 Ra5 Kd7 Ra1 Ke8 Kf2 Kd7 Kf3 a5 b4 f5 d4 c5 b6 h5 b5 a4 b7 f4 b6 c4 d6 Ke6 d7 Kf5 d8B a3 d5 a2 d6 c3 d7 c2 Nc3 Na6 b8Q Nf6 g8B Ne8 b7 Ng7 Bb3 e6 Nb5 Rh7 Nc7 Nb4 Rh2 Nc6 Qd2 Ba3 Bg2 Ne8 g7 Nf6 g8B Ne8 g6 Bc5 g7 Ra4 Bh4 Rc4 d8Q Ba3 Bf7 Rc5 g8B Re5 Na8 Nc7 e3 Ne7 Bb2 c1R Bd4 Rb1 Ba7 Nb5 Bd1 Bc1 Qbd6 Ng6 b8R Ne7 Q6b4 Ba6 Rc8 Bb7+ Ke2 Kg4 Nf3 Nf5 Kd3 Ng3 Qf6 Ba3 Bh1 Bb2 Re2 Bc1 Nd4 f3 Bg2 f2 Bc6 Nh1 Nf3+ Nd4 Bfe8 Rg5 Ke4 Nb5 Bef7 Rb3 Rb1 a1B Rb2 Rf5 Ra2 Rb1 Ra4 Re5+
bB1k1n2/1Q6/6R1/pR1N1n2/pp1RQrp1/Q2B3K/1Pbr2R1/1NNqR1R1 w - - 0 1 illegal: Other
2QbBqR1/k1n2b1r/rNq4N/n7/b3N2p/N1RPR3/RR1B2NQ/7K w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 Kf2 Kd7 e4 f5 g4 c5 Kg2 Kc7 e6 Kb7 d6 h5 e7 f4 e8N c4 a6+ Kb6 g6 c3 d7 h4 a7 c2 g7 Ba3 e5 Rh7 e6 Rh8 e7 Kb7 g5 Nh6 g8R Nf5 g6 Ng7 b6 Qc7 d8Q Be6 Nd6+ Kc6 e8R Rh7 b7 Kb6 Nf3 Nd7 b8R+ Kc6 Qe2 Qc8 Rb2 Ne5 Raa2 Bb3 Ne1 Bc4 Ne4 Bf7 Rh3 f3+ Kh1 f2 Ng2 Be7 Rc3+ Nc4 Na3 Ne6 g7 Bg5 Re7 Nc7 Ree8 Qb8 Qc8 Bd8 Re7 Qb4 d3 Kb6 Bd2 c1Q Ree8 Na5 Re5 Rb8 a8N+ Ka7 Nb6 Qc2 Rf5 Ra8 Rf3 Qf8 Re3 Nc6 Ne1 Qa4 Bh3 f1B Ng2 Na5 Bd7 Qc6 Qf2 Be2 Be8 Bg4 Qf4 Bd7 Qh2 Rh6 Rh8 Rh7 g8N Qg6 Nh6 Ba4 Rg8 Qc6 Qg4 Kb8 Qf5 Ra6 Qc8+ Ka7
2r1r2b/2pN4/3N4/kN3R2/1N1BqrBQ/b2B3n/qRQPK1N1/4BBq1 w - - 0 1 illegal: No possible last move
nrr2R2/KN4k1/BN1nr3/Q7/1rp1Rb2/2NR1PnN/1R3NQ1/R2r2B1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 f5 axb5 g5 e4 g4 exf5 Be6 f3 Qd6 g3 Qf4 gxf4 g3 h3 Bf7 Bg2 Bh5 Bf1 Bg4 hxg4 Bh6 Nc3 Bg7 Nb1 Bf8 Ke2 Kf7 Ke3 a5 Kd4 h5 Kc5 e5+ d6 g2 b4 h4 d4 a4 d5 a3 b6 a2 b5 h3 b7 h2 f6 c6 Kb6 c5 d7 e4 d8Q e3 d6 e2 f5 e1N g5 Bh6 d7 Ra4 Nc3 Na6 b8N Ra5 Nh3 g1R Qd2 Ra4 Ka7 Rag4 b6 Bf8 b7 Be7 Qa5 Rb4 d8N+ Kf8 g6 Rh7 f7 Rh5 Qg2 Nh6 Nd7+ Kg7 b8R Bg5 f8R Bf4 Nb7 Nd3 Nb6 Ne5 Rfe8 Nc7 Be3 Nef7 Ba6 c4 Re4 Rd1 Bg1 Na8 Rd8 Re1 Rd3 Nd6 Rb1 a1R Rb2 Rad1 f6+ Kh8 f7 Rc5 f8R+ Kg7 Qg4 Nhf5 Qg2 Kh6 g7 Ng3 g8N+ Kg7 Nh6 Rc8 Ng4 Rb1 Red4 Re6 Re4 Rd1 Bc5 Rb8 Ngf2 Rc8 Rhe1 h1R Be3 Rd2 Ra1 Rdd1 Ng4 Rb8 Bg1 Rh2 Ngf2 Rh1 Ng5 Rh8 Ngh3 Rg8 Rf6 Rge8 Rf8 Rec8
bR1K4/1N3b2/RpNN2bN/1NQ4b/Q5nk/3Qb1r1/1BB2bP1/2rQ1Q2 w - - 0 1 illegal: Other
7Q/RR1P1rnQ/N2q4/5nk1/1Rp1rpnR/NbNK2N1/1NR2Bn1/3B4 w - - 0 1 illegal: No possible last move
2b1k1q1/NqB1p3/q2QpR1n/5RQ1/K1P1R2R/N1r2qQ1/2B1QR1Q/3n4 w - - 0 1 illegal: Other
1RRQ1B1B/bp3Q1B/1Q2rrp1/4pnP1/1KN4Q/6B1/n1Q1r3/kqN4B w - - 0 1 illegal: No possible last move
4rBK1/RQ2q3/p1BB1b2/Np3q1B/3N2p1/RNN3r1/QNP3B1/b1n1k3 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 c4 a4 c3 dxc3 Rh6 c4 Rh7 c5 Rh8 b4 b6 c6 Ba6 a5 Bc8 a6 Bb7 axb7 Na6 Be2 Rh6 Bf1 Nc5 bxc5 Rh8 Kd2 Kf7 Kd3 Kf6 Kd4 g5 Kd5 e5 b8N e4 h4 b5 f4 e3 h6 e2 h7 e1B c7 d6 c8B a6 c6 Bh6 c7 Bg3 h5 Qf8 Nf3 Qe7 Nc6 Bg7 h6 Qe1 Nfd4 Rb8 Bb7 Qf2 c8B Bh2 Nc3 Qe3 Bg2 Qf2 Ra3 Qg3 Nb3 Ra8 Qf3 Ra7 Nca5 Bg1 Bc6 Ke7 f6+ Kf7 f5 Qg4 Bf4 Bd4 Bh2 Re7 Re1 Re8 Re7+ Kf8 Ke6 d5 f7 Nf6 B8b7 Nd7 Bd6 Rg8 h8Q Bdf6 h7 d4 Qe4 d3 Bf3 Qg3 Bh5 d2 Qc4 d1Q Bg2 g4 Bbc6 Qf2 Qe4 Rc8 Qa4 Ne5 Ra7+ Be7 Qc4 Nd3 Qe4 Bd4 Qf6 Qfe1 h8N Nc1 Qg5 Qh4 Ng6+ Kg7 f8N Qd3 Qgf4 Rc7 Ne5 Bf6 Nec4 Qg5 Qd2 Kh6 Nb2 Qge3 Qe2 Kg5 Qd2 Rc8 Kf7 Kh4 Ne6 Rge8 Qf3 Bde5 Ned4 Qg5 Qd5 Kg3 Qd1 Kf2 Q1f3+ Ke1 Qc4 Bh8 f6 Qdf5 Qfd5 Bg3 Qf3 Bh4 Qe4+ Qe3 Qe7 Qe2 Qb7 Re3 Qd5 Rg3 Qe6 Re8 Qc4 Re5 Kg8 Bg7 f7 Bhf6 f8B Re8 Nc5 Qe7 Qa2 Bh8 Ncb3 Qd3 Ncd1 Bg5 Nf5 Ra8 Na4 Ba1 Nac3 Re8 Nfd4 Qf5 Nb2 Bf6
b2BQ3/N5Rn/rB2Q1Bb/2b1N1NN/R3Bq1k/PBK2n2/1b1N2n1/1b2r3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kf7 g4 b5 d4 h5 Kd2 c5 f6 Kg6 f5+ Kh7 d6 e5 d7 c4 f7 e4 a6 h4 g6+ Kh6 g7 Kg5 d5 h3 a7 b4 d6 h2 f6 b3 Kc3+ e3 Nd2 e2 Nh3+ Kh4 g5 e1B g6 b2 Rg1 h1B Qb3 Bd5 Bd3 Ne7 g8B Qc7 d8N Bh6 f8N Bg7 d7 Bf3 Ng5 Qf4 Nc6 Bf2 d8B Bf5 Nd7 Bc5 Nde5 Nd7 f7 Bh6 f8Q Nf6 g7 Ng6 Qe8 Nh7 Bd5 Rf8 g8N Rf7 Be6 Re7 Nf6 B3e4 Nh5 b1N+ Kc2 c3 Bg8 Rg7 Qbe6 Re7 Kb3 c2 Rg3 Na3 Kc3 Nc4 Ba3 c1B Bb1 Bd6 Bc5 Ne3 Bcb6 Ng2 Bf7 Bda3 Bc2 Bc5 Bb3 Nh8 Bg6 Nf7 Rd3 Bf3 Rd7 Bb1 Rb7 Nd6 Rc7 Nf5 Rb7 Nd4 Rc7 Rc8 a8B Bd5 Bb7 Ra8 Na7 Nf3 Rd7 Bc4 Bbe4 Bd5 a3 Bb7 Rd4 Bc6 Ra4 Bb7 Nac6 Ra6 Na7 Ba8 Ngf7 Nd4 Qc4 Ba2 Bef5 Bg5 Nd7 Nf3 Rb1 Re4 Nde5 Nge1 Qce6 Re2 Be4 Bb2+ Kc4 Re3 Bf5 Re2 Rc1 Bb1 Rd1 Bc1 Kc3 Nd3 Rg1 Nde1 Bdc7 Bh6 Rg7 Ng2 Ng5 Re1 Bd8 Be3 Bg6 Bf2 Bc4 Bc5 Bb3 Bb2+
K1rB3n/3r2QQ/B2Rbn1N/QN3B1Q/r2r2q1/2R3P1/1br1k3/Q3r1BB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kd4 h5 e4 a5 b4 c6 b6 a4 g6 f4 g7 f3 e6+ Kd6 b5 h4 e7 a3 e8Q h3 b7 a2 g3 f2 e5+ Kc7 d6+ Kb6 e6 h2 e7 c5+ Kd5 c4 d4 c3 d7 c2 Be3 c1R Ne2 Na6 b8Q+ Ka5 b6 Kb4 b7 Nh6 g8B Qb6 d8Q Nf5 Be6 Rh4 Qe5 Nd6 b8Q Rh5 Qb7 Rc6 Na3 Rc7 Rc1 a1R Bf5 Rc3 Nb5 Ra7 Qg7 Rh4 Qh5 Nc5 e8B R1a4 Bc6 Rc2 Qdc7 Qa6 Qa5+ Kb3 Qgh7 Nce4 Qbg7 Nf7 Rg1 h1R Qde1 Rca2 Rc3+ Kb2 Bb7 Ba3 Bg2 Qg6 Ba6 R1h2 Bh1 Qg4 Kc6 f1R d5 Nf6 d6 Be6 d7 Nh8 d8B Rd7 Ned4 Rc2 Rg2 Ra1 Bg1 Rc1 Rd2 Kb1 Qd1 Bb2 Rd3 Re1 Kb6 Rd6+ Kb7 Rd7+ Ka8 Qf3+ Nc6 Rhd4 Rd2 Qg4 Ne5 Re2 Qf1 Rce1 Rdd3 Kc1 Nf7 Re5 Nh6 Rc5 Rf3 Kd1 Rf4 Rd3 Rd4 Rdd2 Rd6 Rdd4 Qc4 Rcc7 Qa2 Ke2 Qa1 Rc8+
qnr3QB/R1bN3K/3n1RNr/2B2nQ1/8/1bk3P1/BR2R1n1/nnB2R1B w - - 0 1 illegal: No possible last move
1Rb2nb1/Qr1r4/2BQQ3/n1BB4/q2b2R1/pBK1Qq2/P4Qr1/2N1B1Nk w - - 0 1 illegal: No possible last move
r2NN1Nq/1NBQ4/4br2/8/2B1q1P1/1RbR1pQn/1b5n/kBK1BnNB w - - 0 1 illegal: No possible last move
B1K1Rq2/RbN3k1/N6R/3p4/1N1rn1NN/b1BrqQPr/1Q1R1n2/1qR5 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kd5 a5 b4 d6 c4 h4 f4 e4 c6 e3 c5 a4 c7 a3 g3 e2 f6 e1R f5 h3 b6 h2 c6 a2 g6+ Ke8 b5 Bd7 c8R Re2 g7 Kf7 b7 Ra4 b6 Re8 c7 Be7 Bd2 Nc6 b8Q Bf8 b7 Rh3 Qf3 Rg4 Nc3 Na5 Bg2 Nh6 g8N Qe7 Rd8 Ra4 c8R Nc4 Be1 Be6+ Kc6 Rh4 Nd5 Ra8 Bc3 Rh3 Nb4 Bd7+ Kc7 Bg7 Rc1 Kf8 f7 a1Q Nf6 Qa4 Ng4 Qb3 Ra1 Be5 Ra7 Kg7 f8R Bc6+ Rd7 Rd8 Re8 Nd2 f6+ Kh7 f7 Ne4 f8N+ Kg7 Ra2 Ra3 Ne6+ Kg6 Rd2 Qf8 Qf2 Bf6 Nf3 Be7 Nh4+ Kh7 Rc1 h1Q Qa8 Qe1 b8N Qb1 N8a6 Qe3 Kb8 Rb3 Ra7 Ra3 Nec7 Kg8 Ba1 Rd3 Bc3 Rd4 Qb7 Kg7 Qf3 Rd7 Nbd5 Rd8 Qb2 Rd7 Ndb4 Rd8 Nh2 Ng4 Bh1 Ngf2 Ng4 Bf6 Bg2 Rd3 Re6 Bd4 Rf6 Bc5 Rh6+ Rd4 Nbd5 Ba3 Ndb4 Re8 Rd8 Re5 Kc8 Red5 Rf6 Rd3 Re8 R5d4 Rh6 d5 Bf1 Ba4 Be2 Bb5 Bd1 Bc4 Ba4 Bb3 Bc6 Ba4 Bb7 Bc6 Ba8 Bb7+
Bkb2b2/1B5Q/1B1q3p/4BN2/2KRq3/1rn3QB/Pbn2R2/NnR1Rr1R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kd3 c5 f4 Kc7 g4 e5 g6 b5 d6+ Kb7 a6+ Ka7 g5 h6 f6 b4 d7 b3 g7 b2 g6 e4+ Kc4 e3 d4 e2 f7 e1B d5 Bg3 d6 Nc6 f5 Be5 f6 Be7 f8R Rb8 f7 Rb5 Re8 Nb8 f8R Nf6 g8Q Qa5 d8B Rb7 g7 Bf4 d7 Rb3 Qh7 Bg3 g8B Qa3 Qg4 Rf3 Bf4 Nc6 Be5 Nd4 Nd2 b1N Ne2 Nd5 Nb3 Nc2 Ned4 Ndc3 Bh3 Rf1 Rf2 Bf8 Bd5 Bh4 Re6 Bf6 Bb7 Rg8 Qh4 Rg3 Nf5 Rf3 Qg3 Bh8 Rd6 Kb8 Ba5 Rd3 d8R Bf6 Re8 Qa4+ Bb4 Qc6 Rd4+ Qd6 Ba5 Rf3 Bb6 Re3 Na5 Bh8 Kb3 c4+ Kb2 Rd1 Bf3 Nb4 Bf6 Nb5 Rg4 c3+ Kb3 c2+ Kc4 Rf1 Nb3 c1Q+ Bc3 Rd3 Re1 Nc2 Rge4 Qcf4 a7+ Ka8 Bg7 Kb7 a8B+ Kb8 Bc3 Qg4 Rf4 Be5 Bfb7 Qe2 Bb4 Bb2 Bc3 Qee7 Bg7 Qe8 Rd4 Qe4 Nc5 Ra3 Nb3 N5c3 Be5 Qc6+ Kd3 Nd2 Rac1 Ndb1 Na1 Qe4+ Kc4 Rb3
2Rq1B1K/1N1kqQ1Q/N2b3p/1n5Q/Rbr5/1B2nN1P/r2bN1N1/3Qq2Q w - - 0 1 legal: proof: g4 d5 a4 f5 f4 b5 axb5 d4 gxf5 d3 f6 Nd7 e4 Ba6 e5 Bb7 e6 Nb8 f5 Bc8 cxd3 Bb7 d4 Bf3 d5 Bh5 Be2 Bg6 Bf1 Bf7 exf7+ Kd7 Ke2 a5 Kf3 g5 Kg4 c5 Kh5 e5 b4 a4 d4 g4 d6 a3 h3 g3 d5 e4 b6 a2 b7 h6 Kg6 e3 b5 g2 b6 e2 Nf3 e1B Bc4 g1B Nc3 Bg3 Bb3 c4 Ne2 c3 Ba3 Bg7 f8Q c2 f7 c1Q f6 Na6 b8Q Be1 b7 Qb6 Qa7 Rd8 b8N+ Kc8 Qe8 Qb7 f8Q Qbc6 f7 Nb4 Na6 Q6c5 Qe4 B7d4 Qfe8 Nc2 f8Q Bb4 Qh7 Nf6 Kg7 Qd2 Qh5 Bde3 Qff7 Bh2 Rg1 Rde8 d7+ Kd8 Rg4 Nd4 Rc1 a1Q Qb1 Nb5 Re4 Bc3 Ra4 Re4 Bb4 Qc7 Bf8 Bd6 Qh1 Rb4 Qbc2 Qb7 Qcd1 Rc4 Nc5 Qe1 Rc2 Bed2 Ra6 Bc7 Bd6 Re8 Bf8 Rf4 Kh8 B7e5 Ra8+ Kc7 d8N+ Re7 Ra6 Bb4 d6+ Kc8 Raa2 Qd4 Nde6 Re8 Ra6 Qe7 Ra3 Re4 N6f4 Qd3 Ng2 Nd5+ Qfg7 Bef4 Qgf7 Ne3 d7+ Kc7 Rc3 Ra8 d8N Bg3 Ndb7 Qd8 Rc1 Bd6 Rc2 Ra4 Na6+ Kd7 Rc5 Rc4 Ra1 Ra2 Rc8 Rac2 Ra4 Ra2
Bbk1N1R1/1r1rR2q/2Np4/1n3Q2/Q5QN/2NK1P1N/3b3Q/Qb1qB1nq w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 a5 b4 e5 c4 g5 h4 a4 h6 g4 h5 g3 b6 a3 h7 e4 h6 e3+ Kd3 e2 f6 e1Q b5 g2 b7 a2 c6 Ba3 f7+ Ke7 f8Q+ Ke6 b6 Ra7 c5 Qa5 c7 Qb4 c6 Qde7 Qf5+ Kd6 Nh3 g1B Bg2 Ra6 Nc3 Nf6 Qa4 Qg4 Bd2 Ne8 Be1 Bh2 Rg1 Bc1 Bh1 Rf8 h8N Qh7 Ng6 Rf7 Nh4 Ra7 Bd5 Qh5 f3 Bd2 Rg8 Rg7 Rb1 a1Q Rb4 Qd1 Re4 Be5 Re2 Ke7 Re3 Nd6 Re4 Na6 b8Q Nf7 b7 Ng5 Qa8 Rf7 b8N Rb7 Qa7 Rg7 Qf2 Kd6 Qh2 Bef4 Re7 Bg3 Nf2 Nh3 Be4 Ng1 Nh3 Q7g6 h7 Qhh6 h8Q Qgh7 Ng6 Qc1 Ng5 Be3 Qg2 Bh4 Nd5 Ra7 Rf7 Bg3 Qgc2 Qh2 Nh3 Qh1 Qh2 Bd2 Nh4 Bb7 c8Q Qd1 Qg4 Ba8 c7 Bc6 Ndf4 Bd5 Ne2 Ba2 Qf8+ Ke5 c8N Nc7 Nd6 Nb5 Ne8 Bgf4 Nf5 Ke6 Ba8 Rb7 Nc6 Bb8 Qc5 d6 Rd7 Rf7 Qa1 Rf8 Rdg7 Rff7 Nc3 Kd7 Qce5 Kc8 Qef4 Qh6 Nh4+ Rfd7 Qff5 Qh7 Re7 Bb1+
1k1q1nQ1/1r2rQKN/2p1n3/RQ1P1QQR/r3B3/1n6/q3bbBN/1B3BB1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kd4 f5 g4 h5 b4 h4 e4 c6 g6 Kc7 g7 f4 e6 f3 Ke5 a4 d4 f2 g5 h3 e7 h2 e8Q a3 b6+ Kb7 d6 a2 b5 Bg4 g6 Qc7 Qf7 Rh4 Qc2 Ra6 Nc3 Ra3 Nd5 Nf6 g8B Qd7 g7 Re3 Nf3 Ne8 Nf6 Qc7 Bh7 Be7 g8B Ra3 Be3 Kc8 b7+ Kd8 b6 Na6 b8Q+ Bc8 b7 Qb6 d7 Rc3 Kf5 Rg4 e5 Bc5 e6 Nec7 d5 Rf4+ Kg6 Ra4 Qf5 Rb3 Kg7 Rb2 Bg2 f1R Bg1 Bf2 Bg6 Qa5 B8h7 Nc5 Qa8 Rb6 b8Q Re1 Bf1 Rb3 Qb5 Qb6 Bh5 Qb8 Bg4 Ba6 Bgh3 Re5 Bhg2 Rb1 Qbb7 Be2 Qb5 Rb3 Bg6 Ree4 Nh7 Rbb4 Rc1 a1N Re1 Nab3 Ra1 Ra7 Ra4 Rb7 Ra5 Qc8 Qb8 Ra4 Qa8 N7a6 e7+ Kc7 e8B Re7 Qa7 Nb8 Qa8 Kd6 d8Q+ Nbd7 Qh3 Qb8 Bb1 Qc7 Qf5 Qc8 Qdb6 Nf8 Bd7 Qb8 Qd8 Qa7 Qac8 Qb6 Qg5 Qc7 Qe8 Qd8 Bdf5 Nce6+ Kg8 Rbc7 Bfe4 Rb7 Kh8 Nf4 Qcf5 Kc7 Qfg8 Kb8 Qef7 Bg3 Bd4 Bh4 Kg7 Bf2 Rg1 h1Q Be3 Qh5 Rh1 Qg4 Rh5 Qg3 Nh2 N4e6+ Kh8 Qgd6 Bb6 Qa3 Bc5 Nf4 Kg7 Qa2 Be3 Bh4 Bg1 Be1 Bbd3 Bf2 Bb1 N4e6+
R1R1rr1k/2Q2pRn/5P2/Q3q1rN/b2R2b1/KRQrB1Q1/2Br4/2n2QN1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 Kd2 Kf8 Kc2 Kg7 Kb3 h5 f4 a5 g4 e5 f5 c5 b6 h4 b7 h3 g6 e4 d7 c4+ Ka3 h2 b4 a4 g5 c3 d6 c2 d5 e3 f6+ Kf8 b5 e2 b6 e1R Nd2 Re4 Bd3 Qe8 d8Q Ra7 d7 Re6 d6 Ra6 Qf1 Re7 Ne4 Nh6 g7+ Kg8 Be3 c1R Ng3 Rc5 Bc2 Nf5 Nh5 Nd4 Qc7 Nb3 d8Q Nd7 b8Q Nf8 d7 Nh7 b7 Rd6 Qa8 Rcd5 b8R Rd2 Qaf3 Nc1 Rb3 R6d3 Qa5 Re4 Qdc7 Rg4 Qfc6 Qe5 Qcc3 Re4 Nf3 Rg4 Rg1 h1B Rg2 Re4 Ng1 Rg4 Rg3 Bc6 d8R+ Be8 Rd4 Bf5 Kb4 a3 Rg2 a2 Ka3 Ba4 Rg3 Nf8 Rg2 Kh7 g8R Re4 Rg3 Bg4 Rg2 Nd7 Rc8 Rf8 g6+ Kg8 Rab1 Kh8 R1b2 a1R+ Ra2 Re8 Rg3 Nf8 Rg2 Rf4 Rg3 Rf5 g7+ Kh7 Rg2 Rg5 g8Q+ Kh6 Rbb8 Nh7 Ra8 Rb1 Ra1 Rb6 Rb1 Rd6 Rb3 Rdd8 Qf8+ Kg6 Qfd6 Rf8 Rg3 Rde8 Rg2 Qb5 Qh2 Qe5 Qg3 Bd1 Q7c4 Rg4 Qb2 Ng5 Qgf3 Kh7 Qbc3 Kh8 Qcc7 Nh7 Q3f2 Rg6 Rg5 Bg4 Qg3 Rh6 Rg7 Rg6 Qff2 Rg5 Qe2 Qe6 Qf1 Qe5
b2B4/nNRB1nB1/QK1bQb2/4rN2/2r2P2/3nR2p/1N3NBN/bBk1q3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 h4 g4 a4 b6 c6 f6 a3 b7 a2 f7 h3 g6 e6 g5 Ra3 b5 Rh7 g7 Rg3 b6 Ne7 g8B Qd7 g6 Rh6 g7 Ng6 Qe1 Nh4 Nf3 Qe8 Na3 Ng2 Bb2 Rg5 Nh2 Rh4 Nc4+ Ke7 Kc5 e5 d4 Kf6+ d6 Kf5 d5 e4 Rc1 a1B Bh7+ Rg6 g8B e3 Bg7 Ke4 Nb2 Be7 f8N e2 Be6 Ke3 Nd7 Rg5 Ne5 Rh6 Bb1 Nh4 Bg2 Bf6 d7 Nf5 d8B Nd6 Ned3 Nf7 Bd7 Re5 Nf2 Rhh5 Qa5 e1N Qa6 Kd2 Rc3 Re4 Re3 Rhe5 Rf1 Kc1 Rg1 Re6 d6 R4e5+ Kc4 c5 Kb5 Nc6 b8N Qe7 b7 c4+ Kb6 Na7 Nc6 c3 b8Q c2 Nd4 Bb7 Nf5 Ba8 Qbc8 Rc5 Qc6 Ree5 Qd5 Rc4 Qe6 Kd2 Rh1 c1B Rf1 Nd3 Rfe1 Nc5 Rc3 Nd3 Re3 Rd4 Rc7 Rc4 Na4 Ba3 Nb2 Qe8 Re1 Qf8 Bc8 Ree4 d7 Rc2 Be7 Rcc4 d8N Re5 Re3 Kc1 Nb7 Bb4 Bd8 Ba3 Bd7 Qb4+ Qb5 Qe1 Qa6 Bd6
1b2N1k1/r1B3N1/1BB2n1q/n3r1Q1/N3p1N1/B2Q2NR/1KPrbrBR/b7 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 e5 h4 g5 b4 a5 f4 d5 h6 g4 h5 g3 c6 g2 f6 a4 c7 e4 f5 a3 h7 a2 h6 d4+ Kb2 d3 b6 d2 b7 Ra6 b5 Qd4+ Nc3 Qa4 b6 Nd7 b8N Bd6 b7 Qc4 Rh3 Qd5 Na4 Qc4 Ne2 g1R Ng3 Rh1 Nc6 Bf8 b8B Ne7 Ne5+ Ke8 Ng4 Kf7 Bg2 Rg8 h8B Re1 h7 Bb7 c8B Rg6 Bc7 Bd5 Bb7 Ne5 Bc6 Rg5 Qf3 d1R Qd3 Bh6 Rh2 Kf8 f7 Nd7 Bd4 Rh1 h8N Nf6 Bdb6 Rhf1 Rh3 Kg7 f8N Rd2 Ne6+ Kg8 Ng7 Rff2 Nf7 Ra7 Nd6 Qa6 Nde8 Bc4 Rb1 Rh5 Ra1 Bf4 Rh2 Nh7 f6 Re5 f7+ Kf8 Ka3 Nf6 Rb1 Bb5 Rb3 Bc4 Kb2 Bb5 Ba8 Nc6 Bb7 Na5 Bc6 Bg5 Kc3 Be3 Ba3+ Bc5 Kb2 Bd6 Qe3 Be2 Qg5 Ng8 N3h5 Nf6 Rbh3 Qd3 Ng3 Qf3 Ne3 Qh5 Ng4 Qh6 N7h5 Ke7 f8Q+ Ke6 Qh8 Kf7 Qh7+ Kf8 Nhg7 Kf7 Qhf5 Kf8 Qd7 Kg8 Bd8 Bc7 Qd3 Bb8 Bdc7 a1B+
Qr3Rn1/2NR2R1/2pRB1n1/3P3Q/bBqR1N2/b1NN2r1/6r1/1bN1Krk1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 d4 h5 b4 a5 f4 e5 f6 Kg6 f5+ Kf7 b6 c6 b5 e4 d6 e3 b7 e2 d7 a4 b6 a3 d5 a2 Nc3 h4 Bd2 Qc7 d8R h3 Rd7+ Ne7 g6+ Kg8 f7+ Kg7 g5 h2 Bh3 Rg8 f6+ Kh8 g7+ Kh7 Be6 Rh8 g8R Qf4 g6+ Kh6 g7 Kh5 Rb1 Kh4 Rb4 Kg3 Rd4 Kg2 Rd6 Na6 b8N a1R b7 Nc7 Na6 Ne8 b8N Rh3 Nd7 Rg3 Nc7 Rb8 Nc5 Ng6 Nd3 Ra2 Rd7 Be7 f8N Ba3 f7 Ba6 Rd6 Bb5 Rd7 Ne5 Ng6 Ba4 Rf8 Nf6 g8R Qe4 Rg7 Rc2 Nb1 Qf4 Bb4 Ng8 Nc3 Qe4 Qd2 Ra2 Qh6 Qf4 Qh5 Qc1+ Nd1 Qc4 Nc3 Rb2 Nf3 Ra2 Nd2 Rc2 Rf1 h1B Rf6 Kg1 Nb3 Be4 Ngf4 Ng6 Nbc1 Rd2 Bh3 Rc2 Rfd6 Rb2 Be6 Ra2 Nf2 Bb1 N2d3 Bac2 Rfd8 N6e7 f8Q Rb5 Qhf7 Ba4 Qh5 Ng6 Rb8 Rb2 Qc8 Rb6 Qb7 Rc2 Rf8 Rb5 Qa8 Ra2 Nb2 Rb8 Kd2 e1R Rd3 Qc5 Rd4 Rf1 Ke2 Qc4+ Kd2 Rf2+ Ke1 Rff3 Nbd3 Rag2 Rdf7 Rff2 Rfd7 Rf1#
7n/1Q1BBpB1/B1rq3b/2NRK2b/rRbRN3/R2R2Q1/2rbB2P/3n3k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 c4 Kg4 e4+ Kh4 b4 g5 h6 a5 h7 d5 e6 g4 e5 g3 b6 a4 c6 a3 c7 g2 e7 a2 e8B Ra3 b7 Ra8 c5 Bg4 c8R Bh3 b5 Be7 c6 Bf5 c7 Nd7 b8R Ra3 b6 Rg3 e6 Bd3 b7 Nc5 Ba3 Bc4 Be2 Bf8 e7 Na4 Ke5 d4 Nf3+ Kh3 Qg1 d3 Nfd2 Rg6 Nb3 d2 Nc5 d1B Nd2 Nc3 Nde4 Qd3 Rd8 Bh6 Rd4 Rc6 c8R Qc2 Rcd8 Qd3 Qf2 g1B R8d5 Qc2 Qf4 Kg2 Bd7 Be3 e8B Ne7 Rf1 Bd2 Rf3 Rg8 h8B Kh1 Rfd3 Rg2 Qg3 Qb1 Bg7 Ng6+ Kf5 Nh8 Ke5 Rf2 Bc8 Qc2 Bed7 Rg2 Na6 Qb1 Be7 Rf2 Nac5 Qb6 Rb1 a1R Ra8 Ra4 b8Q Qa6 Rb4 Qb6 Bf1 Bh5 Ba6 Nd1 Qc8 Be1 Qb8 Rc2 Be2 Bed2 Ra7 Rc8 Qb7 Qg6 Bab5 Rc6 Ra6 Raa2 Raa3 Ra1 Ba6 Raa2 Rac3 Ra4 Ra3 Qd6+
1KQRN1nb/2QpBN1N/1r6/1qn4B/R2bkP1r/4bN2/1r3R1R/NR1b4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 h4 g4 b4 e4 c4 e3 b6 e2 b7 e1B b5 a4 c6 g3 c5 a3 c7 a2 h6 g2 b6 Bg3 c6 Bc5 h7 Ra7 h5 Be3 Kd6 Ra5 h6 Ra7 Qc2 Bd4 Na3 Bgf2 Be2 Bfe3 Bh5 Na6 b8R Bf2 b7 Bh4 Nf3 g1B Rh2 Qe8 Rf2 Qf7 Qc4 Bc3 Nc2 Bg3 Ba3 Be1 Rb1 a1R Ra8 Ba5 b8R Bb7 c8Q Ne7 c7 Ra2 Na1 Rb2 Qc5 Bc6 Rb4 Bh4 Ra4 Rab7 Qa7 Bd2 Bc5 Re8 h8R Qc4 h7 R7b6 Qab8 Ng8 Qbb7 Kg7 f6+ Kh6 f7 Bf6 f8N Qb5 Qa7 Be3 Bg4 Qc4 Qcb8 Bg7 c8N Rd8 Nd2 Ne7 Rff1 Bed4 Ba3 Bge3 Rf2 Nc5 Kc7 R6b3 Nd6 Rb6 Qab7 Be4 Nf3 Bc2 Q8a7 Re8 Rd8 Bd1 Qc8 Qb5 Qab7 Bge5 Kb8 Kg7 Bb4 Kf6 Qc7 Ng8 Ba3 Re6 Ne8+ Kf7 Bb4 Rh6 Ba3 Ne6 Be7 Nc5 Ka8 Bg7 Qbc8 Nb7 Kb8 Rh2 Ne6 Kg6 Neg5 Nf6 Rg8 Rh1 Bh5+ Kf5 h8N Rh4 Nh7 Ke4 Nf7 Bh8 Rgg2 Ng8 Rh2 Nc5+
B2r3K/1N1BnNq1/3NbBb1/P3R2p/Nk1n1Nrb/5R1b/5Q2/B1Qq3B w - - 0 1 illegal: No possible last move
1n1BBrq1/1B6/q6p/B2n1Q2/K1kbr3/R1Pn1b2/2N4n/QQBQRN1Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 e5 Kb4 d5 g4 a5+ Ka4 d4 f4 h6 b4 e4 b6 e3 c6 d3 c3 d2 b5 e2 g6+ Kf6 g5+ Ke7 c7 Kd6 f6 Kd5 f5 e1Q g7 Be7 g6 Kc5 f7 Ra6 f8Q Qd7 f6 Bd6 f7 Qh3 b7 Bd7 c8B Qe7 Na3 Qg5 Nf3 Qhg2 Nh2 Qd8 Nc2 Bh3 b6 Qe2 Ra3 Nf6 g8Q Nd5 g7 Bg4 Bd7 Ra8 Bg2 Bf3 Be8 Kc4 Re1 Be5 Nf1 Bd4 Qh7 Qd3 Qf5 Rg8 Qd6 Rf8 g8Q Qg5 Qgh7 Qg8 Qh2 Ra7 Qh1 Ra6 Qe2 d1N Qhg6 Nf2 Qd1 Ng4 Qh7 Nd7 b8B Nh2 b7 Re6 Bc7 Re4 b8Q Qe2 Qb1 Nb8 Bd8 Qd3 Ra2 Qe2 Ka3 a4 Qa1 Kc5 Qhg6 Qa6 Qb6+ Kc4 Qbb1 Kc5 Kb2 a3+ Kb3 Ng4 Ba5 Nh2 Ka4 Kc4 Bd7 Rfe8 f8B Rd8 Be7 Rf8 Rb2 a2 Be8 Nc6 Rb3 Nb8 Qab2 a1N Ra3 Nb3 Q2a1 Bg4 Bd8 Be2 Bb2 Nc1 Bf3 Nd3 Bg2 Re5 Be4 Bf3 Bc1 Ne7 B4c6 Re4 Bb7 Nd5
QN1b3k/B3r1qr/2bQB3/1Q2Q3/q5R1/3R2pB/nNrQ2PK/Bq1B3b w - - 0 1 illegal: No possible last move
7n/r1B1NBqR/n1r2R2/1Q2bN1N/QB3BB1/1n3N1p/3q1nkP/KN1q4 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Qf6 cxd5 Bf5 gxf5 Qd8 d4 Kf7 Kd2 a5 Kc3 h5 e4 g5 b4 c5 Kb2 g4 d6 c4 f6 Ke6 f7 h4 d7 g3 b6 g2 b7 h3 b5 a4 d5+ Ke7 e6 Kf6 e5+ Kg5 b6 Kh4 d6 f3 e7 f2 e8B Ra7 e6 Qc8 d8B+ Be7 f8B Rh5 d7 Rc5 Bf4 Na6 b8N Nh6 b7 Rc6 Be2 f1Q Bdc7 Bd6 d8N Nf7 e7 Qd7 Nf3+ Kg4 Ne6 g1Q Ng7 Nh8 Nf5 c3+ Ka2 c2 Bf7 a3 e8N Qd8 Neg7 Be5 Bb4 Qd2 Nh5 Qg3 Rg1 Qfe1 Rf1 Qg2 Nc3 c1N+ Kb1 Qgg3 Qa4 Qed1 Ra2 Qg2 Ka1 Qg1 Rb2 a2 Nb1 Nd3 Rf2 Rd6 Rf1 Nf2 Nc6 Rf6 Nce7 Rc6 b8Q Qg3 Bc3 Qg2 Rc2 Qg3 Qbb5 Qg2 Kb2 a1N Ka2 Nb3 Bb4 Nd4 Ka1 Qg3 Rc4 Qh4 Rc5 Qg5 Rd5 Qg8 Rd6 Qf8 Rh6 Qg7 Rh7 Qf8 N3h4+ Nf3+ Nd4 Nh1 Bg5 Qg7 Bec4 Ng1 Rf6 Nf2 Bf4 Nf3 Bd3 Bd6 Ndf5 Nd4 Nhg6 Kf3 Be2+ Kg2 Bg4 Be5 Ngh4+ Kg1 Nf3+ Kh1 Nd5 Kg2 Nde7 Nb3#
3R1nQb/NRB1r3/1KnQB1P1/1bB3B1/kn1p3b/N6r/R1p5/R2qB1R1 w - - 0 1 illegal: No proof kernel
2k2B1B/1R1qbQ1N/2BrbPr1/4R1p1/3QK1RN/2q4B/2p2Rn1/1n1B1Rn1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 c5 h4 e5 d4 b5 a4 g5 f4 b4 d6 e4 h6 c4 h5 b3 f6 c3 h7 b2 f7 c2 f5 Qb6 h6 Qa7 a6 Nc6 a5 Qb7 a7 Nb4 a6 Qc6 d5 Bg7 f8Q Qc4 Rh4 Qb5 Nd2 b1N Qf7+ Kd8 d7 Kc7 d8R+ Ne7 d6+ Kb6 d7 Kc7 Re8 Nec6 d8R+ Bd7 Bh3 Qf1 Ba3 Na5 Ngf3 Nb7 Rg4 Rc8 a8B Bf6 a7 Na2 Bf8 Nc5 Nh4 Qc4 Bc6 Nd3 a8B Nac3 Re5 Rg8 h8B Rg6 h7 Qd5 Rde8 Nf4 R8e7 Rd8 Qg1 Na3 Rf1 Kc8 Qf2 Be6 Rb7 Qd7 Qg1 Bd5 Kd4 e3 Ne4 Be7 Nf6 Ng2 Kd3 e2 Qd4 Ba2 Bf3 e1Q Bd1 Ne2 Ke4 Nb5 Nf3 Qg3 Rb8+ Kc7 Bhg7 Qe8 h8R Ngf4 Bc6 Rd5 Bg2 Na3 Rh2 Rd6 Bh3 Ng1 Rhf2 Qd7 Rb7+ Kc8 Nh4 Be6 Bh8 Qc3 Nh7 Ng2 f6 Nb1
bQ2Q1RR/R1Q3Q1/KpR1B1p1/2q3r1/N3Q3/3qnP2/n3r1N1/qk2BRb1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kd4 a4 e5 h4 c5 f3 g6 a6 e4 a7 e3 d6 c4 d7 b6 f6 c3 a5 e2 a6 Kd3 h6 c2 h5 Bd6 f7 Bc7 f8Q Bd6 h7 Qc7 d8R Qe7 h6 Qb7 Qg7 Qe7 Nh3 Qe3 Qe1 Qe6 Nc3 Qa2 Na4 Be6 Rc8 Nf6 Nf4+ Kd4 Ng2 Kd3 Rc6 Re8 h8Q Rc8 h7 Bb3 Qe8 Qb1 h8R Nd5 Ba3 c1Q Bb4 Bc5 Bc3 Kc2 d4 Ne3 d5 Rd8 d6 Rc8 d7 Bd5+ Bb4 Rc7 d8Q Re7 Qc7 Re6 Qeg3 e1Q Bc4 Qc3 Rg1 Qd3 Rf1 Bd4 Ra3 Qa1 Be1 Kb1 Qg4 Re5 Qe4 Rg5 Ra2 Nd7 Rg8 Nf6 Ra3 Rd8 a8Q Rd7 a7 Re7 Qab8 Re6 Qh4 Ne4 a8R Nc3+ Ka6 Na2 Qe4 Qcc3 Ra7 Qb4 Rc3 Qc5 Rc2 Be5 Rcf2 Bh2 Rh1 Ree5 Rff1 Bg1 Rhh8 Re6 Rd6 Ba8 Rc6 Nd5 Qh4 Re2 Qhe4 Qc2 Bb3 Ne3 Be6 Qd3+
r4Q1R/1b4b1/1p3P1p/n2B1N1n/qR3B1N/2kB1BN1/QNrq4/KB2rN2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 e5 Kc2 c5 Kb2 b6 a4 c4 g4 e4 f4 e3 a6 e2 f6 e1R a7 Re5 f5 Re4 g6+ Ke8 g5 Kd7 g7 Kd6 g6 Be7 a5 Na6 f7 Bf6 f8N Bb7 Bd3 Bc8 Qa4 Re6 Bf4+ Be5 f6 Nc7 a6 Nb5 Nd2 Bd7 Qa2 Rb8 a8B Ne7 g8B Qc8 a7 Qe8 g7 Nf5 Ne2 Qd8 Rab1 c3+ Ka1 c2 Ng6 c1Q Nf1 Qcc8 Rb4 Nh4 Neg3 Ng2 Nh4 Na3 Bc6 Qa6 a8B Bc8 Bb1 Qa7 Bb5 Qf7 B5d3 Qfd7 Bf7 Q7e8 g8N Nc4 Ne7 Bb7 Rh2 Qa4 Nef5+ Kc7 d6+ Kc6 d7 Kd5 Bh5 Bd6 Bf3+ Re4 Rh3 Rc8 Rh2 Bf8 Rh3 Qe8 d8N Bg7 Ne6 Qd8 Nc5 Rc7 Bdc2 Qd6 Nd3 Rb8 Nb2 Rcc8 Bd2 Nf4 Bd3 Nh5 Bf4 Rc7 Qa3 Na5 Qa2+ Kc6 d5+ Kc5 Rh1 Re1 Rh2 Qd8 d6 Rc6 d7 h6 Re2 Rbc8 Re8 R6c7 Rh8 Rc6 Rc4+ Kb5 Rd4+ Rc4 Bd5 Kb4 Bf3 Kc3 Re4 Qc7 d8Q Qcd7 Qf8 Re8 Rd4 Rcc8 Rb4 R8e2 Bb5 Rc2 Bbe2 Qd2 Bd3 Ba6 Bac6 Ra8 Bcd5 Bb7
2qR4/Q4P2/N3p2Q/BrN1Nn1b/1br1N3/3pr2k/R1RR1KR1/1n1rNB2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 b4 Kf6 h4 a5 f4 d5 c6 g5 c5 d4 b6 e6 b5 g4 c7 d3 b7 a4 h6 g3 c6 a3 b6 a2 h5 g2 h7 Ne7 h6 Qd5 Qd2 Qb3 Rh2 Qb5 Nc3 Qd5 Kf2 Qc4 Ne4+ Kf7 f6 Kg6 f5+ Kf7 Nf3 g1R Ne1 Ng8 Rg2 Na6 b8Q Qb5 b7 Rh1 Qa7 Qb3 b8N Nc5 Na6 Bd7 c8R Ne7 c7 Na4 Rd8 Qc4 c8R Rh3 Bb2 Rg8 h8R Nc3 h7 Be8 Qh6 Nb1 Bc3 Rb8 Ba5 Re3 Rc5 Qc1 Rc2 Rg4 Rg8 Rh4 Rh2 Rb6 Rgg2 Rb5 Rd2 Qc8 Rc2 Rg4 h8N+ Kg8 Rd2 Bh5 Ng6 Kf7 Rc2 Na3 Rd1 a1R Rdd2 Rd1 Ra2 Nb1 Ne5+ Kg8 Qf4 Kh7 f7 Rh4 f6 Nf5 Rdc2 Bb4 f8N+ Kh8 Nfd7+ Kh7 f7 Rg4 Qg3 Kh6 Ndc5 Rh4 Nc3 Rc4 Qh4 Ng3 Qh3 Kg5 N3e4+ Kf4 Kg1 Nf5 Rgd2 Be2 Kf2 Bg4 Qh8 Bf3 Rg2 Bh5 Ng3 Kg5 Qh6+ Kh4 Nge4 Kh3
2n5/2bBN1pR/1r1N3r/rB1p3b/3P1BB1/1Q1R1N2/1qN2q1B/KQ1b1kN1 w - - 0 1 illegal: No possible last move
r1k1B3/Bb3B2/4NKPB/r2R2RR/n1Bp1Q1Q/p1r2p1q/1RR5/1n2bN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 h5 Kf3 a5 Ke4 f6 Kf5 d5+ e6 d4 g4 a4 c4 a3 e4 h4 b4 h3 c6 h2 b6 Bb7 e7 Bh6 c5 Ra7 c7 Kd7 c8R Ra5 e8B+ Ke7 g6 Ra7 b5 Bg5 e5 Na6 e6 Nb4 c6 Bh4 g7 Nd5 g5 Ra6 c7 Ba8 b7 Qd7 b8Q Rh7 b6 Be1 b7 Qa4 Qh5 Qb5 Bc4 Qa5 Nf3 Bg3 Rd8 Qc5 c8R Qb6 Ra2 Qb3 Bf7 Nc3 Rd5 Be1 Nbd2 Ra5 Qf4 Na4 b8B Rh8 Nf1 Bb7 Rb2 Qc3 Kg6 f5 Ba7 Nf6 g8R Ne4 Qhh4 Nd2 Rg7 Nb1 Rcc5 Kf8 Kf6 Qd3 g6 Qb3 Ng5 Qh3 Rg1 h1R Rh7 Rh2 Be3 Rc2 Rh5 Rc3 Rgg2 Rg8 Rgc2 Rh8 Bg8 Ke8 e7 Bd2 Ne6 Be1 Re5 Kd7 Rcd5+ Kc8 Bf7 Rf8 e8B Rg8 Qf3 Rh8 Bh6 f4 Reg5 Rg8 Qe3 f3 Qef4 Rg7 Bg8 Rc7 Bgf7 Rc6 Bc5 Rca6 Bb6 Ra8 Bc5 Rd3 Ba7 Rc3
1BQ2N2/2Np2rN/1BBB1q1R/2pBNn1q/Q2N4/1P1K2b1/1pn1br1R/5k2 w - - 0 1 illegal: No proof kernel
3N3N/Q2p3K/BBR1B2n/B1QPr2q/pNq1k1p1/5N2/5rbn/N4RrB w - - 0 1 legal: proof: b4 h5 f4 e5 fxe5 b5 g4 Be7 gxh5 Na6 a4 Kf8 axb5 Qe8 b6 Qd8 c3 Nb8 b5 Bb4 cxb4 Ke8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 Kf5 g5 h4 a5 e4+ Kd4 b7 c5 b6 f6 Kg6 c4 h6 c3 e6 a4 e5 g4 e7 c2 e8B f5 h7 f4 e6 f3 e7 f2 b5 Ke4 d4 Nf6 h5 Nc6 b8N Kd5 b7 Nb4 h6 Qa5 b6 Na6 Nc6 Nc7 b8N Qc5 b7 Qc4 Nd2 Qb4 Nd8 Nh5 Ba6 f1Q Nb3 Ra7 Nbc6 Qf2 b8Q Qh2 Bd2 c1R Bf7+ Ke4 e8B Nb5 d5 Qhd6+ Be6 Nc7 Nf3 Ra8 Qg1 Rf8 h8N Nf6 h7 Nb5 Rh6 Nd4 Qa7 Qc4 Ba5 Qe5 Nb4 Qh5+ Kg7 Ng8 Bg6+ Rf5 Rb1 Rf1 Na1 Rd1 Qf2 Rg1 Rf1 Bb7 Bb6 Bc6 Ba5 Bb5 Qc2+ Ke3 Bb6 Re5 Be4 Rb8 Rf6 Nh6 Qc3+ Qd3 Qc5 Qc4 Nd2 Rc8 Bh1 Rc7 Nf3 Ke4 Bg8 Rb7 Rc6 Rb8 Be6 Rc8 Nb7 Rf8 Nd8 Rff5 Ng6 Rf4 h8B Rf8 Kh7 Rf4 Ne1+ Nf3 Bf6 Rff5 Nh8 Rf4 Bg5 Rff5 Bd2 Rf8 Ng2 Nh2 Bc3 Rf2 Nh4+ Rfg2 Nf3 Rf2 Bd2 Qc1 Rd1 Bf1 Bc3 Bg2 Rf1 Qe1 Na2 Qb1 Bca5 Qc1 Nb4 Qc4
K1QRRRrB/Rr2NB2/6Qn/1Q3B2/p2r2rk/1q2q1R1/4NQ1P/4q3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 g4 a5 gxh5 e6 b4 b5 a3 Bc5 a4 Bb6 axb5 a4 Qb3 Ba5 Qc2 Rh6 Qd1 Rh8 bxa5 e5 d4 Ne7 d6 Be6 f4 Bf5 e4 Nbc6 d7+ Kf8 d5 Be6 d6 Bd5 exd5 e4 Qf3 Ng8 Qd1 Ne5 fxe5 Qe8 Bd3 Qe7 Bf1 Qd8 Ke2 c5 Ke3 g5 a6 Kg7 e6 Kh6 b6 f5 b7 c4 Kd4 e3 Kc5 f4 Kc6 e2 b8Q e1R Kb7 g4 a7 Kg5 e7 c3 e8B g3 h6 g2 h7 c2 Qd2 Ne7 Bf7 Rg8 h8R Rg6 Nc3 Qe8 d8Q Re2 d7 Re4 d6 Re3 Rf8 f3 Nd5 f2 Qdc8 Rg8 d8Q Rh8 d7 Kg4 Qb6 Re4 d8R+ Nf5 Qg6+ Kh4 Bb2 c1R Ra3 Rc5 Rg3 Nh6 Bd3 Rg8 Bh8 Rcc4 Qe5 Rf4 Bf5 f1Q Qeb8 Qf3 Qf2 Qe5 Rde8 Qd4 Ne2 Rg4 Rd1 g1Q Rd2 Qfc3 Ne7 Qde3 Rdd8 Rcd4 Qe5 Qb2+ Qb5 Qgc1 Qc4 Rc8 a8R Qe1 Ra7 Rc7+ Ka8 Rb7 Qc8 Qbb3
3B1N1k/5QRp/N1B3n1/3QN1RN/p1p1Bn2/2N1nB1P/r2K4/2r2Q1q w - - 0 1 legal: proof: d4 b5 f4 d5 a4 g5 axb5 e5 dxe5 d4 fxg5 d3 cxd3 Bg7 d4 Bh6 d5 Bf8 b4 Ke7 b6 Bh6 b5 Nc6 b7 Ke8 b8N Ba6 b6 Qc8 Rxa6 Qd8 b7 Bf8 Ra1 Ba3 Nxa3 Nce7 Nb1 Nc6 g4 Kf8 e4 Kg7 d6 f5 e6 a5 h3 f4 d7 f3 e5 f2+ Kd2 a4 g6 Ra5 g5 Qf6 d8Q Qf5 e7 Qg4 e8N+ Kf8 g7+ Kf7 g6+ Ke6 Nc3 Kf5 e6 Qe4 e7 Qf3 Nf6 Ne5 e8B c5 Bd3+ Ke6 Qf1 c4 Nh5 Nf6 g8Q+ Nf7 g7 Qg4 Qd5+ Ke7 Bc6 Qd4 Nf3 Qe4 Nd7 Ne5 b8N Rb5 Nf8 Ng6 Ne5 Rb1 Rg1 Qh1 Rg5 Rb2+ Bc2 Ra2 Rb1 Qh2 Na6 Qh1 Qdd3 Nd5 Rb7+ Kd6 Qf3 Ndf4 Qf7 Rg8 Bb2 Ne6 B2e4 Nef4 Ne6 Rd8 Nf8 Rd7 Qd5+ Ke7 g8B Ke8 Ra7 Ke7 Be6 Rb7 Bg4 Rd7 Ng3 Kf6 Rc7 Kg7 Nh5+ Kh8 Ra7 Ng2 Qf7 N2f4 Bgf3 Rb7 Qe8 Rb3 Rg7 Rba3 Qef7 Ra1 Ke3 R3a2 Ba3 Rc1 Be7 Ne6 Bd8 Nef4 Qfd1 Ra3 Kd2 f1N+ Ke1 Ne3+ Kd2 Raa1 Qf1 Ra2+
2qBbBK1/N1Rb3B/1k1qB2R/1nn5/3N3b/1Q3P2/r2RQq2/N3rNB1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kd7 Kf3 h5 Kf4 c5 Ke5 Kc7 d4 c4 g4 h4 g6 c3 f3 c2 d6+ Kb7 g5 h3 f6 h2 g7 e6 b6 Rh5 d7 Kc6 f7 Ba6 b7 Rh6 g6 Bc5 f8B Qe8 d8N+ Kc7 d5 Rh8 d6+ Kd7 Be3 c1Q Ne2 Qc3+ Nd4 Qe1 Bd3 Qg1 N8c6 Qf2 Ra2 Qg2 Nb4 Nf6 g8Q Qf2 g7 Nd5 Rd2 Nc3 Kf6 e5 Bh7 e4 Qe2 Qc8 Kf7 Bb5 Nbc2 Na6 b8N+ Kd8 d7 Kc7 Na1 Be7 Rc1 h1B Nbc6 Bg2 Na7 Nc5 a6 Kb6 Rcc2 Qg3 Bg1 e3 d8B+ Qgc7 Rc1 Bh3 Rcc2 Bc6 Rc1 Nb5 Rc4 Ne4 Rc5 Bhd7 Rh5 Nf6 Rh6 Ne4 Qc4 Rb8 Rdh2 e2 Nd2 e1Q Bf5 Rh7 Rg6 Qg3 Bf2 Na3 Nab5 Nc5 a7 Ne6 a8R Kb7 Bg1 Nc5 Nf1 Qcd6 Rg2 Rh4 Rh6 Rh2 Bh7 Bg4 Ra6 Bh4 Na7 Bb5 Rc6 Bh3 Rc2 Rd2 Ra2 Qf2 Qe2 Rd1 Rd2 Re1 Rc7+ Ka6 Bfe7 Ka5 Kf8 Be8 Qd5 Rbb1 g8B Bhd7 Qb3 Nb5 Be6 Kb6 Kg8 Rb2 Bf8 Ra2
4B1N1/2Q1BN2/4R3/1KQ2b2/Rqn3QQ/2Pnb1qb/nB3R2/1k2rrBB w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 c5 exf5 c4 a4 c3 axb5 Rh6 dxc3 Rh7 c4 Rh6 c5 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 h4 e5 a6 g5 h6 g4 f6 d6 h7 g3 a7 g2 f7 Bg7 f8B Bb7 c3 Qg5 f5 Qd8 c6 Ne7 b6 d5+ Kb5 d4 f6 d3 c7 d2 c8Q Rg8 h8Q Bd5 f7 Ba2 h5 Be6 h6 Nec6 b7 Na5 h7 Bf5 Nf3 g1Q Qc5 Nbc6 b8Q Qe7 Bb2 Nc4 Qc7 Nb4 Rh6 Qg3 Re6 Bh6 Ra4 Re8 Bh3 Kd3 a8B e4 Ng5 e3 Qg4 Kc2 Bh1 d1B Nd2 e2 Nde4 e1N Nf6 Rg6 Ng8 Kb1 Qf6 Bf3 h8B Ned3 Qfd4 Qed6 Be7 Na2 f8R Rf6 Nf7 Be3 B3g2 Be2 Bc6 Bf1 Qh4 B1h3 Qdg4 Rg6 Bd4 Rf6 Qd5 Qa3 Qc5 Be4 Bd7 Rf1 Bc6 Bf5 Bd7 Bc1 Bg1 Be3 Bdc6 Rd8 Be8 Re1 Raa6 Rd4 Ra4 Rf4 Nd6 Rff1 Rf7 Bh7 Rf2 Bf5 Nf7 Qb4+
1Rn1BRb1/N2BQQb1/8/1Q1n1B2/6qR/r1P2n1r/5B2/N1knKRBn w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 c5 exf5 c4 a4 c3 axb5 Rh6 dxc3 Rh7 c4 Rh6 c5 Rh8 f4 Kf7 h4 Kf6 b6 e5 h6 d5 h7 g5 a6 g4 h5 e4 c6 g3 h6 e3 c7 e2 c3 g2 b7 d4 a7 d3 Rh4 Bc5 Nf3 g1N Qa4 Qe7 Nfd2 Qf7 Qb5 Qe8 Bh3 Qe5 Nb3 Ne7 Na3 Ng6 Be3 Nf8 Bf2 Nbd7 b8R Ba6 c8B Nb6 Bd7 Qd4 Rd1 Bd6 Na1 Ne6 Be8 Bf8 Rb1 Rg8 h8Q+ Bg7 h7 Nc8 Rd1 Rf8 Qg8 Nc7 h8B Nd5 Bg4 Nh3 Rc1 Ke7 f6+ Kd6 f5 Ke5 f7 Kf4 f6 Bb7 Bg1 Nf2 Bgd7+ Ke3 Qh7 Rg8 f8Q Qg4 f7 Bc6 Bf5 Bd7 Qe7+ Be6 Bd7 Rd8 f8R Re8 Qf6 Bg8 Qf7 Re6 Be8 Rf6 Bfd7 Rf3 Rb1 Rh3 Bf5 Bh6 Bf6 Bg7 Bd4+ Kf4 Qe7 Nh1 Bdf2 Kf3 Qh5 Kf4 Qhf7 Kf3 Kd2 Kf4 Rf1 e1N Bed7 Nf3+ Kd1 d2 Ke2 d1N Be8 Ng5+ Ke1 Kf3 Rb6 Rb8 a8B Kf4 Bb7 Ra8 Bbc6 Ra7 Bcd7 Nf3+ Ke2 Ra5 Rb8 Ra4 Qb2 Ra7 Nb5 Ra3 Na7 Nh2+ Ke1 Kf3 Bfe6+ Ke4 Qb7 Kd3 Nb3 Kc2 Qb5 Kb1 Na1+ Kc1 Bf5 Nf3+
N4nr1/n1Q2B2/3BRQ2/1q6/1N4kN/1BNq2n1/PN2r1qr/2BbK1QR w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 e6 g4 Kd7 h4 Nh6 g6 Be7 g7 Ba3 g5 Be7 g6 Bg5 hxg5 Ng8 Bc4 Ke7 Bf1 Ke8 d4 Kd7 a6 b5 f6 h5 f7 c5 f8B b4 a7 b3 d6 c4 d5 b2 Ne2 e5 Qd4 e4 Na3 b1Q Nc3 e3 Qf6 Ne7 g8B h4 g7 e2 g6 h3 Bf7 h2 g8N Qb5 g7 Rh5 Nh6 Nbc6 g8Q Ng6 Nf5 Rb8 a8N Na7 Be7 Nf8 Qg1 Rh3 Nh4 Bb7 Nd1 c3 Nb2 c2 Nb1 Rc8 Nc3 Ba6 Kf2 e1R Bc4 Re2+ Kf1 Rb8 Bb3 Bc8 Bd2 Bb7 Re1 c1Q Bf4 Qc2 Bc1 Rd2+ Re2 Qg6 Ke1 Qg2 Re6 Rc8 Nf5 Rh8 Nh4 Rg8 Nca4 Rcc2 Nc3 Qda5 Bd8 Qd3 Bc7 Bc6 Bb8 Ba4 Bc7 Qab5 Bb8 Kc8 d7+ Kb7 d8Q Qg7 d6 Kc6 Bc4 Rf2 d7+ Kc5 Qf3 Kd4 Bd6 Rd2 Qf5 Bd1 Qc7 Qg4 d8N Qg6 Ne4 Ke3 Qf6 Qg3 Bb3 Qg6 Nf5+ Kf3 Nc6 Rg2 Nb4 Rde2+ Kf1 Qg3 Nc3 Kg4 Nh4 Qh3 Qgb6 Qhg3 Rg1 h1N Qbf2 Rh2 Qfc5 Ref2+ Ke1 Qg2 Q5b6 Ng3 Rh1 Rd2 Qg1 Re2+
QR2Q2R/QB1b1q2/1rn3kn/q7/B4PN1/1bB1RN1Q/q1n1K1R1/1Q3b2 w - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 f5 cxd5 b5 a4 f4 axb5 f3 e3 Bg4 Qa4 Be6 Qd1 Bc8 Be2 e5 Bd3 a5 Bc4 e4 Be2 Bd6 Bf1 Bf4 exf4 e3 Rh5 e2 Rh1 Ra6 Rh3 Re6 Rh1 Re3 fxe3 Na6 Kf2 Nb8 g4 Kf7 b4 e1N d4 h5 d6 c5 b6 a4 d5 a3 e4 h4 g6+ Kf6 b7 c4 g7 a2 g5+ Kf7 b5 c3 e5 c2 e6+ Kg6 d7 h3 b6 h2 e7 Na6 b8Q Nb4 e8B+ Kh7 d6 Qc7 d8Q Nc6 d7 Na7 g6+ Kh6 b7 Qc6 Nc3 Qd6 Ne4 Qe6 Bg2 Qb3 Bb2 c1Q Bc3 Qa4 Nf6 Qc6 Ng4+ Kh5 Kf1 f2 Nf3 Qc7 Ke2 Nc6 Qa7 Qa3 b8R Qaa5 Qb1 Nge7 g8R Rh6 g7+ Rg6 Rg1 Nf5 Rh8+ Nh6 g8Q h1B Qgb3 Nc2 Qe7 Qb7 d8Q Bd7 Qa8 Qba7 Qdb6 Qc7 Qba7 Qb7 Qba3 Qb3 Qee3 Qf7 Qae7 Re6 Qh4+ Kg6 Qh3 Rf6 Qe5 Be6 Bd7 Bb3 Qe8 Rd6 Qb2 Rf6 Rae1 a1Q Qc1 Q1a2 Qb1 Nb4 Ba4 Rb6 Kd2 Nc6 Re3 Rb5 Ke2 Rb4 Ne1 Rb6 Bd5 Be4 Nf3 Bf5 Rg3 Bd7 Rg2 Nb4 Bb7 Nc6 Re5 Bd5 Re4 Bb3 Re3 f1B+
n1bB2Q1/NbR1N3/R1qq1Rr1/1BnN2bN/8/R3N1P1/1B4KQ/q3kb2 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bb7 d5 Ra5 bxa5 Bc8 Kf2 Kd7 d4 h5 e4 f5 g3 c5 e6+ Kd6 g6 c4 g7 h4 e5+ Ke7 d6+ Ke8 a6 a3 a7 a2 a8R f4 e7 Kf7 e8R Kg6 d5 Kf5 e6 Ke4 d7 c3 e7 c2 b6 f3 d6 h3 b7 h2 Na3 Nc6 b8Q Rh3 Qd2 Rh6 Nc4 Na7 Ne2 Re6 Bb2 c1Q Nf4 Nh6 g8N Qc7 d8B Nf5 d7 Qd1 Nd5 Qc6 Nce3 Ng7 Bb5 Rg6 Rf1 h1B Kg1 Ne6 Qh2 Bh6 Rf8 Nf4 e8N Ne6 Rf7 Bg5 Ng7 Nc5 Nh5 Qd2 Rfc1 f2+ Kf1 Qb4 Rf6 Qd4 Rc4 Kd3 Nge7 Kd2 Rc3 Bf3 Rac1 a1Q Ra3 Qf4 Ra6 Qfd6 Ra3 Bg4 Kg2 Bb7 Rcc3 Nc8 R8a6 Nb6 Qa8 Ne4 Rc5 Ke1 Qb8 Qc8 Rc7 f1B+ Kh1 Bh4 Rc1+ Bd1 Bc7 Nc3 d8N Nca4 Ndc6 Na8 Na7 Bg5 Rc2 Qcd7 Qg8 Bg4 Bd8 Qe8 Kg1 Bgc8 Rc7 Qec6 Kh1 Nc5 Kg1 Be2 Kg2 Bf1+
1q3R2/R1Q1N2Q/1NB5/3Q1qQb/b2r1B2/2QPr3/1rNK2qN/r1B1n2k w - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 d4 h4 d3 f4 g4 f6 Bh6 cxd3 Bg5 hxg5 Nc6 d4 Kf7 d5 Nd4 Nh3 Nf5 exf5 Kf8 Ng1 Ke8 b4 Kf7 d3 e5 b6 c5 d6 h5 d7 a5 b7 a4 b8N h4 b5 c4 b6 e4 b7 g3 Na3 c3 Qf3 h3 Nc6 g2 b8N h2 Ne7 e3 Nc2 a3 Ra2 Qb6 d8Q e2 Nd7 Nh6 Qc7 Qb8 Nb6 Ra4 Qd5+ Be6 Ra1 a2 Nf3 Ng4 Rg1 h1B Nh2 Ne3 g6+ Kf8 f7 Kg7 f8B+ Kf6 g7 Rd4 g8Q Bd7 Qg3 Ba4 Bh6 Rd8 Qg4 Rb4 Qgg8 Rb2 Qh7 Rd6 Nd4 c2 Kd2 e1R Be2 Qa8 Bf3 Qb8 Rf1 g1Q Rf2 Qg7 Qc3 Ng2 Rf1 Ree6 Rf2 Kf7 f6 Ne1 f5 Rd8 Be4 Bf3 Bf4 Bh5 Bf3 Ke8 Bh1 Re3 Rf3 Rd6 f7+ Kd8 f6 Qg2+ Ne2 Rd7 Qg5 Rd4 f8Q+ Bae8 Qff7 Ba4 Qfb3 Ke8 f7+ Kd8 Nc4 Kd7 f8Q Ke6 Qfh8 Ree4 Qd8 Re3 Qc5 Kf6 Qcc7 Ke6 Nb6+ Kf6 Bd6+ Kg5 Qd5+ Kh4 Rf8 Kh3 Be5 Bd7 Bf4 Ba4 Rb1 a1R Qg5 Qg4 Bc6 Qf3 Qgd5 Kg2 Qg5+ Kh1 Qdd5 Rb5 Rb2 Qg2 Ra2 Rb2 Ra3 Bb3 Ra5 Ba4 Ra7 Ree4 Bg3 Rg4 Ke3 Rdf4 Bd2 Rh4 Nd4 Rh3 Nb5 Rd4 Na3 c1Q Nc2 Nf3 Bd6 Qcf1 Bc1 Ne1+ Bg3 Rhh4 Be5 Qf5 Bf4 Rh3+ Qg3 Qf3+ Kd2 Q3e4 Qgg8 Re3 Qg5 Qg2+
nqN1BN2/R7/Q5R1/1Kn2N2/3Bq1qQ/rPBB1kq1/Nbr3R1/nN6 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 b3 e5 g7 h5 b7 a5 f6 c5 g6 a4 d6 a3 f7 h4 g5 a2 d5 h3 d7 h2 d6 Rh4 Be3 Ne7 g8N Ra5 g7 Rh5 g6 Rh4 Ne2 Kf3+ Bd4 e4 Rg1 h1Q Rg2 e3 Nec3+ e2 Nh6 Rh5 g8R Rh3 g7 Nc8 Qd3+ Kf4 Nf5 Na6 b8B Ra3 Kb5 e1Q Rg6 Qg5 d8Q Qg4 Qh4 c4 d7+ Bd6 d8N Nc5 f8N Qg3 Bc7 Qe4 Ba5 Nb6 Nc6 Be5 Nce7 Rh2 Nc8 Rc2 Bb4 Bf6 Qe2 Na8 Ba5 Qd5 Qe6 Be5 Bd3 Qe4 Qa6 Bf6 Nd5+ Kf3 Bac3 Bg5 Nb4 Bc1 Rh8 Bb2 g8B Qf2 Bf7 Qfg3 Be1 c3 Be8 Rg2 Rh7 c2 Bec3 c1Q Rhg7 Rc2 Ra7 Qcg5 Nd2+ Kf4 Rg1 a1N Nb1 Qd8 Na2 Kf3 Rg2 Qdd6 Qh5 Qde5 Qh4 Qb8+
2qR1Q1K/1B2q1nN/P3QQB1/R1r1r3/3r3Q/RnqrRRq1/1k6/1N4B1 w - - 0 1 legal: proof: f4 a5 e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 Kf7 bxa5 Be6 h3 Bh6 f6 Ke8 g3 Bf7 f5 Bf4 gxf4 g3 Qf3 Bh5 Qd1 Bg4 hxg4 Ra7 Be2 Ra6 Bf1 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 a4 b5 a6 h5 g5 h4 a5 e6 d6 h3 g6 c4 g7 h2 a7 g2 a6 c3 d7 c2 d5 Kb3 d6 b4 f7 Qb6 d8Q Qb7 f8R Qf3 f6 Rh4 f5 Qf2 f7 Rd4 f6 Nh6 g8R Qf3 d7 Nf5 Bd3 Ng7 Nh3 g1Q Bg6 Qc3 Be3 Kb2 Ra5 c1Q Ng5 b3 Nh7 Qg4 Rf1 h1R Re1 Rh3 Bg1 Rhd3 Re3 Qh3 Qf3 Qg3+ Qf4 Qc8 Qe7 Q1c3 d8Q Q8c6 Qd5 Qc8 Rd8 Nd7+ Kd6 e5 f8Q e4 f7 Nc5 Ke5 Na4 Kf6 Nc5 Qh4 Rb8 a8B Rb5 Ra3 Ra5 Qde6 Rb5 Rf3 e3 Bb7 e2 Re3 e1Q Rh8 Na4 Rg8 Re5 Rd5 Qe2 Ra5 Nc5 Qfe8 Rh5 f8R Rd7+ Re5 Nf5 Qb6 Kc1 Nd2 b2 Qed6 b1R Qf7 Rb4 Nb1 Rb5 Qbc6 Nh6 Kg7 Kb2 Kh8 Nb3 Rd8 Rc5 Rgf8 Qe4 Qc4 Rg5 Rf3 Nf5 Qf8 Ng7 Qcf6 R7d4 Re7 Qee5 Qcg8 Qd6 Ree3 Qe7 Qge6 Rge5
N1n1Q3/kb1nBBRR/2BpNq1P/1R3b1q/2Rr4/4nB1B/1r3QK1/2N5 w - - 0 1 legal: proof: d4 b5 h4 g5 e4 f5 exf5 h5 a4 c5 dxc5 Nc6 axb5 Nb8 g3 Bg7 hxg5 h4 g6 h3 Bg2 Bf6 Bf1 Bh4 gxh4 Rh6 Qd2 Rh7 Qd1 Rh8 b4 a5 c4 e5 f4 a4 Kf2 d6 h5 Kd7 f6 Kc7 g7 Kb7 f5 a3 b6 h2 c6+ Ka6 c7 e4 c5+ Kb7 f7 a2 f8N e3+ Kg2 e2 b5 e1Q f6 Qd2+ Ne2 Bf5 f7 Qh4 Nc3 Ra4 c8B+ Ka8 b7+ Ka7 c6 Qb4 c7 Qd3 b6+ Ka6 Nb5 Qf4 Qc2 Be6 Bd7 Qh4 c8B Qf4 Nc7+ Ka5 Na8 Ka6 Bc6 Bf5 Ne6 Qb3 f8Q Rb4 Qe8 Qh6 Bg5 Rh4 Nc1+ Bd3 Be2 Qb1 Bef3 Qb2 Be7 Rd4 Qf2 Bf5 Rb1 Qc3 Rb4 a1N Rc4 Nc2 Rg1 Qf6 h6 Qa5 B8d7 Qae5 Bc8 Nd7 b8R+ Ka5 b7 Ka6 Kf1 Ka7 Kg2 Nb6 B8d7 Qa5 Rd8 Nc8 b8R Qc5 Rb5 h1B+ Kh2 Ne3 Rg4 Qg6 Kh3 Nf6 g8B Rh7 Bf7 Qh5+ Kg3 Qa3 Rg7 Qc3 Bg4 Bf3 Bh3 Bg2 Bf3 Rh8 Bdc6 Nd7 Rh7 Rg8+ Kh2 Rg7 Qh8 Rgg4 Rg8 Rd2 Rg5 Rb2 Qe8 Qf6 Rgg7 Rd4 Bg4 Re2 Bb7 Bge4 Bf3 Nf1+ Kg2 Rb2 Bc6 Nf8 Bd7 Bb7 Bdc6 Nd7 Kg1 Ne3 Kh1 Nd5 Kg2 Ne3+
Q2N1b2/1P2n3/3q3Q/2q1Q3/B1nr4/3rQ1bB/pK2N1R1/BRRQR1rk w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 b4 Kd7 d4 Kd6 Kd2 a5 Kc3 c5 b7 h5 b5 e5 g7 c4 g6 e4 b6 a4 g5 e3 f6 a3 f7 e2 Bb2 e1R Nh3 h4 Nf4 a2 Bh3 Re8 Re1 Rh7 Ne6 Ne7 g8B Rh8 g7 Ra7 g6 Qc7 Nd8 Nd7 b8Q Nf6 b7 Ng4 Qf3 Nf2 Qe3 Rh6 Kc2 Rh7 Nc3 Ng4 Ne2 c3 Rac1 Ra4 Ba1 Ne5 Kb3 c2 Kb2 Rh5 Bh7 Rf5 g8R Rg5 g7 Rg1 Rh8 Ra3 g8R Rd3 Qa8 Qc5 Rg2 Bh6 f8Q Bg7 Bd7 h3 Ba4 h2 Bf5 h1Q Bh3 Qh2 Qff4 Rf8 Qh6+ Rf6 Rg8 Bf8 R8g5 Qg3 Rf5 Qg6 Rff1 Rf4 Rb1 Kc7 Rec1 Qgd6 Rfe1 Kb6 Bb3 Kb5 Ba4+ Kc4 Qb8 Qa6 d6 Kd5 d7 Qad6 Qf2 Ke4 d5 Rg4 Qd4+ Kf3 Qa7 N5c6 Qe5 Na5 Qb6 Rgd4 Qb3 Qdc6 d6 Qa6 Nf7 Qac6 d8Q Qc7 d7 Q7d6 Rg6 Kf2 Qa8 Kf3 d8Q Kf2 Bg4 Kg2 Bh3+ Kh1 Qc3 Rg4 Qd7 Rgd4 Nd8 Nc4+ Kb3 Rd2 Qce3 Rd1 Rg2 R1d2 Rcd1 c1B Kc3 R2d3+ Kc2 Bd2 Rdc1 Nb6+ Kb2 Bb4 Red1 Be1 Qg4 Bg3 Re1 Rc3 Qgf3 Rcd3 Qfd5 Nd7 Qb3 Nb6 Qd1 Nc4+
2Q3b1/1q1n4/3N1Bk1/1Nr1q3/n2RN1nQ/Qp3Q1r/4KPR1/3rRBRQ w - - 0 1 legal: proof: h4 d5 g4 a5 b4 f5 bxa5 g5 e4 d4 exf5 d3 f6 Bg7 fxg7 e6 cxd3 Nh6 d4 Qd6 d5 Rg8 hxg5 Na6 g6 Rh8 g5 Ng8 Rh5 Qd8 Rh1 Nb8 d4 h5 a4 c5 d6 b5 d7+ Ke7 a6 b4 a7 b3 a5 e5 d5 c4 a6 c3 d6+ Ke6 Ke2 Kf5 Nh3 c2 Ra4 h4 Rd4 e4 Bb2 c1Q Na3 e3 Nb5 Nh6 g8Q Qe8 d8N Qe6 d7 Rh7 g7 Rh8 g6 Rh7 Nf7 Ng4 d8Q Qe5 Nhg5 h3 Ne4 h2 Qh4 Be6 Qc8 Qcc7 g8R Nd7 g7 Qb7 Nfd6+ Kg6 Qe1 Rb8 a8Q Rh5 Rg1 h1R a7 Rh3 Re8 Bg8 Qb4 Rf5 Qa3 Rh5 Qc1 Rd8 Qac8 Rf5 a8Q Rh5 Ke1 e2 Qe3 Nf8 Qf3 Nd7 Kd2 e1N Ke2 Nd3 Qh1 Bd5 Rg2 N3c5 g8R+ Kh7 Rg5 Bg8 Rg1 Na4 Re6 Ngf6 R5g2 Ng4 Re7+ Kg6 Ba1 Qa6 Qac6 Qa7 Qc3 Qb6 Qf3 Qb7 Rd1 Nb8 Rc7 Qh8 Re1 Bd5 Rc4 Bg8 Nf7 Rd1 Nfd6 Rc5 Bc3 Qh5 Bf6 Nd7 Rd4 Qe5
BQ1R1K2/n3N3/N2R1Br1/2QRq1qk/R4n1b/PQ2b3/2pb2R1/5qBQ w - - 0 1 legal: proof: g4 a5 b4 b5 bxa5 f5 c4 d5 cxd5 g5 f4 Bb7 e4 Na6 exf5 Nh6 f6 Nb8 f7+ Kd7 f5 Bc8 h3 Ng8 f6 Kd6 Qa4 Bf5 Qc2 Kd7 gxf5 g4 Qd1 g3 Be2 Ra6 Bf1 Rc6 Bd3 Rc4 Bf1 Rg4 hxg4 Qe8 Nc3 Qc8 Nb1 Qd8 Ke2 c5 Kf3 h5 Ke4 e5 d4 b4 a6 b3 a7 g2 a8Q b2 g5 c4 d6 c3 Kd5 e4 g6 h4 g7 h3 Be3 h2 Ne2 g1B Ng3 Na6 Bg2 Rh6 Na3 b1Q Qb3 c2 Nb5 Rh3 Nc7 Nb8 Na6 Bf2 Rd1 Be7 f8R h1Q f7 Bg1 f6 Nh6 g8R Qc8 Nf5 Bh2 Bg1 Bd8 Ne7 e3 Re8 e2 f8Q e1B f7 Qc1 Bf3 Qd2 Rg2 Qf4 Qg8 Bh4 f8Q Nf5 Qh7 Nc6 Qab8 Ng3 Kc5 Qh6 d5 Bc7 a3 Ba5 Rd3 Qd2 Rd1 Qe1 Rd4 Qd8 Ra4 Qe4 Qff5+ Qe6 Rf8 Bc3 Rf6 Ke8 Rg6 Qf6 d7+ Kf8 d6 Ne2 Rd5 Nf4 Qh8+ Kf7 Qfh5 Qc7 d8B Bd2 d7 Qg5 Be4 Qa5+ Kd6 Rg3 Qhc3 Qb5 Qc5 Na7 Re5+ Qc4 Ba5 Nd3 d8R Qe3 Kd7 Bg5 Bc3 Qd5+ Rd6+ Kg7 Bf2 Qf1 Ke8 Bg1 Q8b5 Nf4 Qh1 Bh4 Qb8 Rg6 Bd4 Kh6 Kf8 Qee2 Rf5 Qg4 Bf6 Qg5 Bf3 Qd4 Ba8 Kh5 Rfd5 Qde5 Bd4 Bf2 Be3 Bg3 Bg1 Bf2 Qbc3 Bd4 Qcb3 B4e3
Q5nB/6RB/1r1N2B1/1BkN1QR1/5P2/qBn3K1/1RRq1qbp/2rQn3 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 g6 Bh6 g5 Bg7 fxg7 Qd8 axb3 Ba6 b4 Ng8 b5 Bc8 Kf2 Kd7 d4 Kd6 b4 c5 b6 a5 b5 h5 b7 e5 b6 e4 Nh3 a4 Rg1 h4 Bb2 c4 Nc3 a3 Ra2 Nf6 g8B Nfd7 g7 Ra5 g6 Rc5 Rg5 Qe8 Bf7 Nf6 g8B Be6 g7 Rh6 Bg6 Nfd7 B8h7 Qe7 g8B Na6 b8Q+ Rc7 b7 Nb4 Qf8 Nf6 b8R e3+ Kg2 e2 Nf2 h3+ Kg3 e1N Nfe4+ Kd7 d6 Kc6 d7 h2 d8Q Nbd5 Qf7 Qc5 Nd6 Bh3 Rb5 Bg2 Qa8+ Rb7 Ba1 Qa7 Rd2 a2 Rc2 Qc5 Bb2 a1Q Qe6 Qca3 Qf5 Q1a2 Ba1 Rh5 Rbb2 Rh6 Be6 Ng8 Bef7 Ndf6 d5+ Kc5 Be8 Ra7 Ba4 Rc7 Bb3 Rc6 Ndb5 Rc7 d6+ Nd5 d7 Rc6 d8R Rc8 Bh5 Rb6 B5g6 Rc7 Nd6 Rcc6 Ncb5 c3 Rd7 Rc8 Rg7 Rcc6 Rc1 c2 Nc3 Rc8 Bb5 Rc7 Rcb1 c1Q Rc2 Qd2 Rbb2 Kb4 Nce4 Nc3 Nf6 Rcc6 Nd5+ Kc5 B3a4 Qc4 Bb3 Qcd4 B3c4 Qg1 Bb3 Qgf2+ Kg4 Rc8 Rb7 Rcc6 Ra2 Kd4 Rc1 Rc4 Ra7 Kc5 Rf7 Ne4 Bh8 Rb8 Rb2 Rb6 Rg7 Qfd4 Kh4 Rc2 Kg4 Nc3 Kg3 Qg1 Ra2 Qf1 Rb1 Rc1 Rc2 Qg1 Rbb2 Qgf2+
q1r1r3/N1R3R1/4q2R/3N4/BpPNb1Q1/1B2BnQ1/1R1KN2b/k2Nb1r1 w - - 0 1 illegal: No possible last move
rrr3b1/1BkNQ3/2Brp1Q1/4R3/b1PK4/1N1B1Q1Q/1n1B1NQ1/r2R1q2 w - - 0 1 illegal: No possible last move
1k4nr/2b1R3/qp1r4/Rr2BPBb/4KB1r/b6B/RN1Q4/BNNQ1N2 w - - 0 1 legal: proof: b4 a5 bxa5 d5 a4 h5 g4 f5 gxh5 d4 e4 b6 exf5 d3 a6 Qd7 a7 Ba6 a5 Bc8 a6 Nc6 cxd3 Qd8 d4 Na5 d5 Nb7 axb7 Bd7 Ra6 Be6 Ra1 Bc8 Ke2 Kd7 Kd3 e5 b8R c5 f4 Kc7 h4 g5 d6+ Kc6 f6 c4+ Ke4 g4 d4 c3 d7 Kc7 d5 g3 f5 g2 f7 c2 d6+ Kc6 h6 Qg5 d8B Bb7 d7 Bc8 h7 Qg6 h5 Bg7 f8N Qh6 Rh2 Qf6 h6 Ba6 Ne2 g1B Ra5 Bf2 Bf4 c1R Ng6 Qh4 Rb7 Rc8 a8N Bc5 Bh3 Ba3 Bg5 Rd8 Nc7 Rc5 Nc1 Be2 Nd5 Bh5 Ra2 Rb5 Ne3 Bgf8 Rba7 Bfd6 Nf1 Bc7 Rb7 Qf2 Rba7 Qb2 Qd2 Qa1 Qd1 Rf8 d8Q Rf6 Q8d2 Rd6 Rb7 Bd8 Re7 Bc7 Ke3 e4 Ne5+ Kb7 Nc4 Kb8 Nb2 Re6 Kd4 e3 Kd3 e2 Kd4 e1R Kd3 Nf6 Kd4 Rc8 h8B Ng8 h7 R1e4+ Kd3 Reb4 Bhe5 Rd6+ Ke3 Rc4 h8B Re8 Bh2 Rh4 Bhf4 Nh6 Bhg7 Rh8 Ke4 Ng8 Bef6 Be8 Nc4 Nh6 Ra8+ Kb7 Rc2 Bc5 Ra3 Qa2 Ba1 Kb8 Bge5 Bh5 Ra7 Qa5 Ra2 Ba3 Nb2 Ng8 Ra6 Rbd5 Ra7 Qb5 Ra4 Qa6 Ra5 Rb5
8/K1Q3q1/3B1r1b/2RnBNn1/Q5R1/1QQBr1B1/1qpPqNkB/5N1q w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 b4 a5 b7 a4 g7 h4 b5 e6 f6 a3 f7 a2 g6 c6 g5 h3 b6 h2 Qa4 Rh7 Nf3 Nh6 g8Q Rg7 Nc3 Rh7 g7 Ng4 g6 Qe8 Nd1 Ra7 Rg1 h1Q Bb2 Ne5 Nf2 Nd3 Rg4 Rh6 Nh2 Ne5 Bd3 Qe7 Nf1 Nbd7 Rc1 a1Q Rc5 Nf6 Qh8 Nf3+ Kc4 e5 b8B+ Qc7 g8N e4 g7 e3 b7 e2 Ne7 e1Q g8Q Qe2 Qhg7 Ng5 Be5+ Kd7 d6 Ke6 d7 Nd5 d8B Rf6 Nf5 Qb2 Be7 Ra6 B7d6 Qd7 Q7h7 Bh6 f8Q+ Qf7 Qgh8 Qg7 Qd8 Rb6 Qc7 Rb3 Bh2 Ra3 Bdg3 Rb3 Qb6 Ra3 Bbd6 Rb3 b8B Ra3 Ra5 c5 Qbb4 Rb3 Kb5 c4 Ka6 c3 Rc5 c2 Qb7 Rc3 Ka7 Ra3 Bb5 Rf3 Bd3 Re3 Bbc7 Kf7 Q7g8+ Kg6 Bde5 Kh5 Bcd6 Nf4 Qgb3 Nd5 Qc7 Qhf3 Rb4 Qh1 Ne4 Kg4 Nf2+ Kf3 Rg4 Nh7 Qhb8 Kg2 Q8b4 Ng5 Q4c4 Ne7 Qcc3 Nd5
7r/2Q1n1Rq/5N1B/NqN3RB/R1pn1n2/N2rbn2/2B1QP1N/1B2K2k w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 f5 h4 f4 hxg5 f3 g4 Na6 exf3 Nb8 g6 Bd7 g5 Bg4 fxg4 Bg7 Be2 Bh6 Bf1 Bf8 d4 Kd7 b4 Kd6 b6 a5 g7 e5 b7 h5 b5 c5 b6 a4 g6 c4 g5 e4 Be2 a3 Nf3 h4 Nh2 e3 Rg1 a2 Bh5 h3 Na3 Nd7 b8R e2 b7 Ne7 g8B Qe8 g7 Ra6 g6 Rh7 Rg5 Rh6 Bh7 Qd8 g8B Nc5 g7 Na4 Bb1 Qe8 Bgh7 Nc3 g8N Qb5 Bhc2 Rh8 Nf6 Bh6 Rbg8 Ra8 R8g6 Rad8 b8N Rd7 Rg8 Rd8 R5g7 Be3 Nc6 Rd7 Na5 Rd8 Nf1 h2 Rg5 h1Q R8g7 Qe4 Nh2 Qh7 Qd2 Ne4 Qd3 Nc5 Qd1 Ne6 Bd2 Kc7 d6+ Kb6 d5 Kc5 d7 Kd4 d6 Nf4 Ne8 Rc8 d8Q Rb8 Qc7 Rd8 Bf5 Kd5 d7 Kd4 Bbc2 Kd5 Rb1 a1N Rb4 Nb3 Ra4 Nd4 Bb1 Ra8 d8N Ra7 Qb6 Rd7 Ndb7 Ke5 Nc5 Rd5 R5g6 Rd6 Bfc2 Rd7 Nd3+ Ke4 Rg5 Rd6 Qc7 Rd5 Ng4 Kf3 Nc5 Kg2 Nef6 Kh1 Nh2 Ndc6 Nab7 Rd3 Na5 Nd4 Rg3 Nfd5 Bc1 Bf4 Rg2 Re3 Kd2+ e1N Qe2 Nef3+ Kd1 Rd3+ Bd2 Ne5 Ke1 Nef3+ Kf1 Bg3 Bh6 Bf4 R2g4 Be3 R4g5 Nd2+ Ke1 Nf4 Rg4 Rb3 Rg2 Rd3 R2g5 N2f3+
6NB/1B4P1/4Q2b/1RNBBK1n/2b3Nk/B1R1q1pn/1Rn2n2/Q4rNq w - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 gxf5 g5 h4 d5 cxd5 e5 fxe5 g4 a4 Ra6 axb5 Rh6 Rh2 Rh5 Rh1 Rg5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kf7 Kg3 c5 Kf4 h5 e4 c4 b4 c3 d4 a4 f6 Kg6 e6 g3 e5 a3 e7 a2 e8B+ Kh7 g6+ Kh6 e6 h4 b6 c2 d6 h3 e7 h2 d7 Ba6 b7 Qc8 d8Q Qc6 d5 Qc3 f7 Bd3 b5 Nf6 d6 Nc6 b8B Ne5 d7 Rg8 b6 Qc7 b7 Bb5 Ba3 c1Q+ Kf5 Qa5 Nc3 Qa6 Qc8 Ne4 d8B Qa4 Rb1 a1N Qe6 Bd7 Bc4 Qa6 Rb2 Qc2 Bd5 Nd3 Na4 Rh8 Be5 Qcc4 b8R Nc2 Qa1 Kh5 Nc5 Bh6 f8N Qc3 Nh7 Rf8+ Nf6+ Kh4 R8b5 Nf4 Bb6 Bc8 Bec6 Nh3 e8N Qa8 Bb7 Qe3 Ba5 Rf7 Bac3 Bd7 Ne2 Bc8 Rc1 h1N Ng1 N1f2 Bcd4 Nd3 Bc3 Nef2 Bcd4 Ndf4 Bc3 Rc7 Ng8 Nh5 Nef6 Rf7 Bcd4 Bd7 Bc3 Be8 Bcd4 Rf8 Bc3 Bf7 Ng4 Qa5 Bcd4 Qae1 Bh8 Qf1 g7 Qg2 Be5 Qh1 Bdc6 Rd8 Be4 Rd1 Bf3 Rf1 Bfd5 Ne1 Rc4 Nc2 Rc3 Be8 R5b4 Bb5 R4b3 Be2 Rb5 Bc4
R1q2Q1n/4K1B1/3rR2q/2kN1n2/2N2rB1/pP1Qn2B/B1N1qRN1/1r2N3 w - - 0 1 legal: proof: c4 e5 a4 g5 f4 d5 cxd5 b5 axb5 f5 g3 g4 fxe5 f4 h3 f3 Ra3 Bh6 Ra1 Bf4 gxf4 g3 Qc2 Nc6 Qd1 Bg4 hxg4 Nb8 e4 Ke7 d4 h5 Kd2 a5 Kc3 c5 Kc4 h4 g5 a4 f5 f2 d6+ Kd7 Kd5 c4 e6+ Kc8 e5 Kb7 b6 a3 d7 h3 Kd6 g2 g6 c3 g7 c2 e7 h2 e8N Ra6 d5 Nc6 e6 Rh5 f6 Rg5 f7 Nd4 f8Q Nb3 e7 Rg3 Qd3 Qa8 d8N+ Kc8 Nc7 Na5 e8B Nb3 Bd7+ Kb8 Nde6+ Kb7 Nd4 Nc5 Bh6 c1Q Ra2 Qe8 Bg4 Ra8 Nc2 Nd7 Nd2 Rc8 Nc4 Qa1 Nf3 g1R Nfe1 Qe2 Bfh3 Ne7 g8B f1N Bg7 Ne3 Ke6 N7f5 d6 Kc6 b7 Qd2 b8R Qac1 Ra8 Rf3 Nd5 Ne5 d7 Ng6 d8N+ Kb5 Kd7 Rf4 Ne6 Rc6 Ke8 Rd6 Bf7 Rf3 Nef4 Kc5 Nfg2 Nh8 Bg8 Qe2 Be6 Nh6 Ke7 Rgf1 Rg1 h1Q Bf7 Rff6 Bg8 R1f4 Rf1 Rb6 Rf2 Rfd6 B8e6 Rd4 Rf6 Rf4 Bf7 Rb5 Re6 Nhf5+ Kf6 Qb1 Na1 Qbc2 Ne5 Qh2 Ne7 Rd7 Rea6 Rbb4 Bd5 Nf1 Re6 N1e3 Bb3 Qf2 Nd5+ Rd6 Bc4 Nd4+ Ke7 Qa4 Bb3 Qc6 Nc4 Rb6 Qd2 Rf6 Qd3 Qhf4 Bc2 Qc8 Bb1 Rb3 Qh7 Qh6 Qd3 Rc3 b3 Rc1 Re2 Rf4 Ba2 Rb1 Nac2 Qf3 Rf2 Qd1 Ndb6 Qe2 Nd5 Ndf5+
5R1R/n1n5/5Qp1/q2qBBQR/nPn1n2r/2NR3R/3N1Q2/B1kBK1r1 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 h4 g6 h5 Qd7 f7+ Kd8 f4 Ba6 h6 Bg7 hxg7 Nh6 f5 Qc8 Nh3 Kd7 Ng1 Ng8 f6 Qd8 Bh3 Bc8 Bg2 Kd6 Bf1 Bf5 gxf5 Kd7 f8R Kd6 d4 a5 b4 c5 b6 e5 f7 h5 f6 a4 b7 c4 Rh2 a3 Rh1 c3 Qc2 e4 Qf2 h4 Qd2 a2 Rh2 h3 Bb2 e3 Bg2 e2 Bf3 c2 Nc3 c1N Qg5 Ne7 g8B Na6 b8B+ Nc7 Bg4 Ra6 Bf5 Nb3 Nf3 Na5 Nd2 Nc4 Rd1 Ra8 Ba1 Nc6 Rb1 Rh4 Rb3 Qd7 Rc8 Ra5 f8R Na7 f7 Rc5 Rh1 h2 Rce8 Qd8 Re3 Ra5 Rh3 Ra4 Ncb1 Qd7 Rbd3 Qe6 Nc3 Ra3 Rg1 h1N Rf1 Nf2 Rfh1 Ne4 R1h2 Kd7 d6 Kc6 d7 Qd5 d8Q Kb6 Qde7 Ka6 Qe5 Rb3 Qeg3 Rb2 Qf2 Rb1+ Nd1 Kb5 Qf6 Qd6 d5 Ka4 Rd8 Qc6 d6 Qd5 f8R Rc1 d7 Rb1 Bc3 Ka3 Rde8 a1Q d8Q Qa2 Bf7 Qa5 Ba1+ Qb3 Rh8 Rc1 Ref8 Ka2 Nf1 Kb1 Nd2+ Kc2 Rh5 Rb1 Rh1 Kc1 Nc3 Qba2 Qde7 Qd5 Be8 Qaa5 Ba4 Nb2 Qg5 Na8 Rhh8 Rg4 R3h5 Rh4 Bd6 Nc7 Bb3 Na4 Rhh3 Rb2 Qef6 Rc2 Q2d4 Nec5 Kf2 e1N Be5 Ng2 Kf1 Ne4 Ndb1+ Ne3+ Ke1 Rg2 Nd2 Rg3 Bd1 Nc4 Qf2 Rg1+
2r2B1K/2p4r/4nR1P/1Qq4N/NN1RB3/1R3N1k/R1QN1r1q/nq2Br2 w - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 f5 exf5 d4 g5 d3 cxd3 Nf6 d4 Ng8 d5 Ba6 Qb3 Bb7 Qd1 Bc8 b6 Ba6 h3 Be2 Ra2 Bg4 Ra5 g6 Ra4 Bh6 gxh6 g5 Ra3 Be2 Ra1 g4 Nf3 g3 Ng1 Bg4 hxg4 Qc8 Bb5+ Qd7 Bf1 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 a5 b4 h4 d4 a4 d6 h3 d7 e6 g5+ Kf7 Ke5 h2 f4 g2 f6 Kg6 f5+ Kh7 b5 a3 b7 a2 f7 Na6 b8N Qe8 d8R Ne7 Kf6 e5 f8R e4 b6 e3 d5 e2 b7 e1R d6 Qh5 d7 Qf3 Nd2 Qf4 Ngf3 g1Q Bg2 Re3 Qc2 Nc8 Nc6 Rb3 b8Q Qb4 Qb5 Qc4 Nb4 Qf2 Rb1 Rd3 Rb3 a1R Rf1 Qe3 Rf2 h1Q Bb2 Ra2 Bc3 Qcf4 Kf7 Qfh2 f6 Qb1 Bh1 Ne7 Re2 Rg8 g6+ Kh8 g7+ Kh7 Rg2 Rh8 g8N Nd5 Nc4 Ra1 Nfe5 Qg5 Qd2 Ne3 Qc1 Qhh4 Ra2 Qb2 Be4+ Qf5 Nf3 Nc2 Qd2 Rf1 Qf2 Ra7 Be1 Na1 Qc2 Re3 Ncd2 Qh2 Rfe8 Qb1 Re6 Rb7 Kf8 Kg6 f7+ Kh5 Kg7 Kg4 f8B Rb6 Nf6+ Kh3 Nh5 Rb8 Rf6 Rh7+ Kg8 Re7 Kh8 Nc5 Rc8 Qfe5 d8N Re2 Ne6 Ref2 Rd8 Rc8 Rd4 Rh7+ Kg8 Nb7 Nc5 Nd8 Na4 Qd6 Qd7+ Ne6 Qb5 Re7 Kh8 Qc5 Qcd3 Rg7 Qc2 Rh7+
k3n2n/pNP1NBQ1/b1B2Qq1/2rR2b1/Q1N5/N3Q2p/3q2Nr/2RKB3 w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 a4 f5 axb5 c5 exf5 c4 d4 c3 h4 c2 hxg5 Bh6 Be3 c1Q Bd2 Qc4 Bc1 Qc5 dxc5 Bf8 f4 Kd7 b4 Kc7 g4 Kb7 f6 e5 g6 h5 f7 h4 g5 e4 b6 e3 b5 h3 f5 e2 g7 Qc7 g6 Be7 f8Q Bg5 d6 Rh5 d7 Rh4 f6 Be3 f7 Rh8 Qa4 Nc6 d8N+ Kb8 b7 Qe7 Na3 Na5 c6 Bd4 Nf3 Bg4 Bg2 Qb4+ Bd2 Be6 Nh4 Qc3 Rd1 Nf6 g8N Nc4 g7 Be3 Ne7 Nd5 g8B Qa5 Qg7 Bg5 f8Q Nb4 Qff6 Nd6 Bf7 Rg8 Be4 Rf8 Ng2 Bc4 Bf3 Kc7 b8N Qa6 Nb7 Nd5 Nd7 Nf4 Ne5 Kb8 b6 Ne8 Bc3 Ng6 Rd5 Bb5 Nec4 Nh8 Bb4 Bh4+ Kd2 e1Q+ Kc2 Qe3 Rc1 Bg5 Kd1 Qd3+ Bd2 Qg6 Be1 Qa5 Nbd6 Ba6 b7 Kc7 Be4 Rc8 b8Q+ Kd8 Qbb2 Kc7 Qa2 Kb8 Qaf2 Ka8 Nb7 Qc3 Qe3 Qa5 Kc2 Qd2+ Kb3 Rg8 Nh4 Nc7 Rd6 Rgd8 Rd4 Qa5 Kc2 Qb4 Kd1 Ne8 Rd2 Rd5 Bf3 Rcd8 c7 Rc5 Bc6 Rd4 Rd3 Rf4 Rd4 Rf2 Rd5 Rh2 Ng2 Qd2+
1qN2B2/Q1NQb1Q1/6b1/PBRn1B1r/p1Nn3N/2Q5/Rnb2p1k/2K2Q2 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 h3 gxh3 Kd7 h4 Ke7 h5 Ke8 a5 Qd6 b3 b5 b4 Qb6 axb6 a5 Nf3 a4 Ng1 Ra5 bxa5 Bb7 Nh3 Ba6 Ng1 Bc8 e4 Kd7 d4 g5 Kd2 f5 h4 c5 e6+ Kd6 e5+ Ke7 d6+ Ke8 d5 c4 e7 Kd7 e8N f4 b7 f3 e6+ Kd8 e7+ Kd7 h6 b4 h7 f2 h5 b3 h6 b2 Nf3 g4 Bh3 Nf6 Ra2 Nc6 b8Q Nd8 Nh4 Nf7 Na3 b1B Nc7 Nh5 Qa7 Ng5 Qf1 c3+ Kd1 Ne6 Nc4 g3 Ba3 g2 Kc1 g1Q Bf5 c2 e8B+ Kd8 d7 Qg3 Bc5 Nd4 Rg1 Qb3 Rg5 Qb8 Ba3 Bc5 Bb4 Ke7 d8N Kf6 d6 Bd7 Nc6 Nf4 Ne7 Nd5 Nc8 Bb5 d7 Be7 d8Q Ba6 Ne5 Bd3 Bb5 Be4 Qd7 Bd3 Kb2 c1N Nc4 Bbc2 Bd6 Nce2 Ba3 Nec3 Kc1 Nd1 Bd6 Nb2 Rh5 Rg8 h8Q+ Rg7 Qg8 Rh7 Qg3 Rh8 h7 Be4 Qc3 Bed3 Rh6+ Kg5 Ba3 Kf4 Rc6 Kg3 Rc5 Kh2 Bb4 Rg8 h8Q Rg5 Qg7 Rh5 Rc6 Bf6 Bf8 Be7 Rc5 Be4 Bh3 Bh7 Bf5 Bg6
1nNB4/2b4N/1q2rNQp/B1B2r2/1Pk2N2/KbpR3R/2B1b2N/r1R2Q2 w - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 b5 cxd5 b4 a3 Bg4 axb4 Bc8 h4 g5 hxg5 a5 b3 a4 Rh3 a3 Rh1 Nd7 Ra2 Nc5 Ra1 Na4 bxa4 Be6 Ra2 Bf5 Ra1 Bc8 d4 Ke7 Kd2 f5 Kc3 c5 Kb3 a2 e4 f4 g4 c4+ Ka3 c3 g6 h6 d6+ Ke6 a5 f3 g7 f2 a6 Bb7 d5+ Kf7 d7 Rb8 d6 Ke6 a7 Nf6 g8R Bc6 a8N Ne8 g5 Qc7 d8B Be7 g6 Bh4 d7 Rh7 g7 Be7 Bd3 f1B Be3 Bd5 Bc5 Bh3 Qf1 Bg5 Bc2 Qb7 Nd2 Rh8 Rc1 Bb3 Ndf3 Nd6 Ba5 Bh4 d8B Nf5 Ne2 Qb6 Nf4+ Kd7 e6+ Kc6 e5 Qc7 e7 Qa7 e8N Rb6 e6 Bg4 e7 Bg3 Nf6 Nd4 Nh2 Be2 e8N Kb5 Nh7 Re6 Nb6 Nc6 Nef6 Nb8 Nc8 Qb6 Re8 Rf8 g8Q Kc4 Qg6 Rf7 Re7 Rf8 Rd7 Rf7 Rd3 Rf8 Nh3 Bc7 Nf4 Rf7 Nhg4 Rf8 Rhh3 Rf7 Nh2 Rf8 N6h5 Rf5 N5f6 a1R+
3r1Q1b/R2R1Qr1/1Qb1Rp1K/R7/N1bB3Q/2r1B3/pPB4Q/nN1q1k2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 g5 fxe5 b5 a4 a5 axb5 Qd7 h4 Qd6 hxg5 Na6 bxa6 Qd8 Kf2 Kd7 Kf3 h5 Kf4 c5 e4 h4 d4 a4 g4 h3 g6 h2 e6+ Kd6 a7 c4 g5 c3 e5+ Kc7 e7 Kb6 e8Q a3 g7 c2 g6 Bf5 d6 Bd3 d7 Kb5 e6 Kc4 e7 Rc8 Kg5 Qa5+ d5 Rc7 a8R Qc5 d8B Rh6 Qb5+ Kd4 e8R Qc6 d6 Qd7 Qh5 Be4 Ra7 Qc6 d7 Nf6 g8Q Bg7 Re6 Bd3 Qf8 Bh8 g7 Qf3 g8Q Bc4 Ne2+ Kd3 Qb6 Ng4 Be3 c1R Bf6 Rc3 d8Q+ Rd7 Bh3 Rh7 Bfd4 Qf1 Qdc7 Qd1 Qh4 f6+ Kg6 Rd8 Qgf7 Rg7+ Kh5 Ne5 Kh6 Nf3 Ra2 Nd2 Bf5+ Ne4 Rg1 h1B Qch2 Bf3 Ra1 a2 Rg5 Bh1 Bg6 Bg2 Rf5 Nd2 Rfa5+ Be4 Bh7 Nb3 Bf5 Rc1 Nec3 Rc2 Na4 Rc3 Bf2 Ke2 Bfe3+ Bg2 Bc2 Kf1 Na3 Qe1 Rd1 Na1 Nb1 Bc6 Be5 Bg2 Rdd7 Bc6 B5d4 Qd1
q1r1b1N1/4qB2/r1R1NN2/2R1B3/3Q1PR1/b1Q1Kq1p/2Bp1B1k/n2R2R1 w - - 0 1 legal: proof: a4 b5 axb5 c5 d4 g5 dxc5 f5 e3 f4 exf4 g4 f3 Ba6 Qd6 Bb7 Qd1 Bc8 fxg4 Qc7 h4 Kf7 g5 Nh6 g4 Qd8 h5 Qb6 g6+ Ke8 g5 Nc6 g7 Ng8 Nh3 Ne5 Ng1 Ng6 hxg6 Qd8 Kf2 h5 b4 d5 c4 Kd7 b6 Ke6 c6 Kf5 b7 e5 b8Q a5 b5 e4 c5 d4 c7 d3 b6 h4 b7 a4 c6 h3 Be3 a3 Nd2 a2 Ngf3 Kg4 Nd4+ Kh4 Rg1 Qd7 Ne6 Nh6 g8B Bb4 g7 Bc5 g6 Ba7 Bf7 Qe8 g8N Bc5 g7 Bd7 c8R Ba3 Qc7 Qe7 b8B Be8 Bb6 Ra5 Ke3 Ra6 Qe5 Qb7 c7 Qa8 Bg2 Kg3 Qc3 Kh2 Qa4 Qd5 Rad1 a1Q Qad4 Qa8 Bf3 Qb2 B3h5 Qb3 Bhg6 Qbd5 Nf6 Qh5 g8R Qhd5 Bh7 Qdc6 R8g4 Nf5+ Kf2 Ne3 Ng8 Nc2 B6a7 Na1 Ke3 Bd7 Kf2 Ra4 Qd6 Rc4 Nh6 Bc5+ Nd4 Rd8 Ng8 Ba3 Qd5 Qd6 Ne6 e3+ Kf3 Qe7 Ne4 e2 Bf2 d2 Ke3 Rc6 Qdd4 Rf8 Nef6 Ra6 Bc2 Bc6 Rd8 Bb5 Rd6 Rd8 c8R Be8 Rc5 Rc8 Bh4 Rc7 Rdc6 Rc8 Be5 e1Q+ Kf3 Qf1+ Ke3 Qg2 Bf2 Qf3+
2BqkB2/2B1NN1B/B3R3/Q1b3p1/1q3rpR/QbbQP3/8/nnN1K1Q1 w - - 0 1 illegal: Other
1N6/1nBRn3/5bQ1/p1Brq3/N1q2N1k/NQ1B1R1p/1nNKb2P/4R1R1 w - - 0 1 legal: proof: f4 a5 b4 c5 bxc5 f5 g4 e5 gxf5 b5 e4 b4 a4 b3 d4 b2 dxe5 Ba6 f6 Ra7 f5 Bc8 f7+ Ke7 Bb5 Rb7 Bf1 Rb5 axb5 Qe8 Ne2 Kd8 Ng1 Kc7 Na3 b1Q f6 Qa2 Nb1 Qd5 Ke2 Qde6 Ke1 Qf5 exf5 Qd8 c4 g5 e6 h5 b6+ Kc6 b7 d5 e7 Kd7 e8Q+ Kc7 c6 Kd6 c5+ Kc7 Kd2 g4 Na3 d4 Ne2 h4 Qb3 h3 Nf4 d3 Rg1 Be7 f8N g3 f7 g2 f6 Nd7 b8N Bb7 N8e6+ Kc8 f8R Rh5 f7 Ba6 c7 Bf6 Nd4 Ne7 Ndc2 Rd5 Bb2 Bc4 Re1 Bb5 Be5 Ba6 Kc3 d2 Bd3 d1N+ Kd2 Nb2 Bd6 Nf5 Qe6 Qe8 Qe4 Ne7 Qg6 Bb5 Be5 Kb7 c6+ Kb6 c8R Kc5 Rh1 g1Q c7 Qd4 Rd8 Qc4 c8N Ba6 Nb6 Bb5 Bd4+ Kd6 Na4 Ba6 Be3 Ke5 Rhg1 Nc5 Rd7 Nb7 Bb6+ Qe4 Qg7 Kf5 Bc7 Bb5 Rh8 Qg8 f8B Qe6 Rg8 Qe5 Qf7 Ba6 R8g3 Bc4 Rf3 Ba6 Ng2+ Kg5 Nf4+ Kh4 Qg8 Qc4 Qg6 Nc8 Bb4 Ne7 Bc5 Bb5 Rd8 Be8 Rd7 Bf7 Qh7+ Bh5 Qg6 Bg4 Rff1 Bd1 Rf3 Be2
2Q3r1/NQ2r1R1/Q4n1N/pnRq4/1P3BBb/1R4K1/2Rq1p2/2QRq1kB w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 b5 a4 a5 axb5 Bf5 g4 Bc8 gxh5 Ba6 bxa6 Rh7 Bh3 Rh6 Bf1 Rh8 Kf2 Kd7 h4 f5 d4 g5 e4 c5 b4 g4 e6+ Kd6 e7 c4 e8R c3 e5+ Kc7 e6 Kd6 a7 c2 h6 f4 h5 f3 h7 Qe7 h6 Qf6 e7 Bg7 Rc8 Qg6 e8B Qe4 Ra3 Qe2+ Kg3 f2 Bg2 Qd3+ Nf3 Qd2 Rc5 Qe2 Nh2 Qa6 Nc3 Qb7 Nb5+ Ke7 d6+ Kf6 d7 Qc8 d8R Qc7+ Bf4 c1Q d5 Kf5 d6+ Be5 d7 Qc4 Bh5 Qd5 Qc1 Qcb7 Rb3 Na6 Rd1 Bf6 Rdc8 Bg5 d8Q Qd7 Bh1 Nc7 Qe7 Nf6 Qd6 Qd8 Qa6 Re8 h8R Re7 h7 Rb8 a8Q Qd7 Nc3 Nb5 Q8b7 Ra8 Rcg8 Rae8 Rg7 Rg8 Nf3 Qd6 Ne5 Qd2 Nf7+ Q6d5 Kh2 g3+ Kh3 g2 Kg3 Na3 Nb5 Ke4 Na7 Nb5 Nh6 Ra8 Rbc3 Rg8 Rc2 Kd3 Bg4 g1Q+ Bg2 Qe1 Bh1 Rge8 Rhg8 Ra8 h8Q Rd8 Bd7 Ke2 Bg4+ Kf1 Rf8 Ra8 Rff7 Kg1 Qhc8 Nh7 Rf5 Nf6 Re5 Rb8 Re3 Ra8 Rb3 Rb8 Qce6 Rg8 Qec8 Bh4+
q3B3/b2R1R2/2BR2P1/2BRKp1R/8/2knp3/r1NqrQ2/2NrQNNn w - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 Qd7 a4 Qd6 axb5 Qd8 e4 Kd7 d4 g5 hxg5 Nc6 d6 Ke6 d7 Kd6 d5 Nb8 f3 Ke5 Qc2 e6 Qb3 Qe7 Qd1 Qc5 d6 Qd5 exd5 Kf5 Qd2 Kg6 Qe2 Bb7 Qd1 Bc8 b6 e5 Rh2 e4 Bc4 e3 Bf1 Ba6 Rh5 Bd3 Rh1 Be4 fxe4 Bg7 Rh5 Bh6 Rh1 Bf8 Ke2 h5 Kf3 a5 Kf4 c5 d8R f5 g4 h4 b4 a4 b7 h3 d7 a3 d6 c4 b5 c3 e5 a2 e6 c2 b6 h2 e7 Ra7 e8B+ Kg7 g6 Kf6 g5+ Ke6 g7 Na6 b8N Rh3 b7 Nh6 g8Q+ Nf7 g6 Ra8 Qe1 Kd5 Ba3 Kd4 Nc6+ Kd5 b8N c1Q Bg2+ Kc4 Nb4 Nc7 N8a6 Rb8 Nc2 Rh6 Nd2+ Kc3 Bc6 Ra8 Nc5 Ne5 Nd3 Na6 Bc5 Nb4 Nf1+ Qd2 Nc1 Ng4 Rb1 a1Q Qa2 Nf2 Ke5 Nd5 Rb4 Nf4 Rd4 Rh4 Rd5 Rg4 Rc8 Rg2 d8R Ra4 Rc7 N4d3+ Kf6 Ra3 Rf7 Bg7+ Ke6 Bd4 d7 Ra8 Rb8 Ra7 d8R Ra3 R8d7 Ra6 Bf8 Ba7 Rbd8 Ra5 Bc5 Ra3 Qb1 Ra2 Qe2 Nd1 Qe1 Re2 R7d6 N1f2 R8d7 Qb2 Kf6 Qb8 Qb5 Qa8 Qc4+ Kb2 Qf4 Kc3 Qf3 Ne4+ Ke6 Ng3 Qff2 Bb6 Qd1 Ra1 Nf3 Qe1 N1d2 Ba7 Kf6 Nb4 Ke5 Ra2 Rg1 h1R Rg2 Ra6 Rh2 Ra2 Rh5 Rf1 Ng1 Nh1 Ndf3 Qd2 Nh2 Ree1 Qde2 Rd1 Qfe1 Rf2 Nf1 Rg2 Qf3 Re2 Qff2 Nd3+
1Q2QqB1/1K3nN1/pr2Bb2/1r4N1/kp2BB2/3r1Q1Q/Pn2R1Rq/3N3Q w - - 0 1 illegal: No possible last move
1R1K1N2/Pqp5/Rq1nrR2/1b1RQNkp/BR4q1/1N4Bb/1B1r1QN1/8 w - - 0 1 legal: proof: f4 a5 e4 f5 c4 g5 h4 d5 cxd5 a4 g4 a3 e5 Bg7 gxf5 g4 bxa3 Nd7 a4 Ndf6 exf6 Bh6 a5 Bg5 hxg5 Qd7 Ba6 Qd6 Bf1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 b5 d4 h5 a4 b4 g6+ Kf8 a6 g3 d6 g2 Kd5 e4 Kc6 e3 g7+ Kf7 a5 e2 d7 e1Q a7 b3 d5 b2 a6 Qd2 d6 Rh7 Nh3 g1Q Qe1 Qg5 Qe5 Qg1 Bb5 Qdh2 Nd2 b1B Ba4 Qg5 Bb2 Qgg3 Nb3 Qe7 d8B Qf8 d7 Bc2 Rhb1 Nh6 g8N Qhf2 Ne7 Rb8 a8R Qg4 a7 Rb4 Rb8 Qfg8 Ra3 Kf8 f7 Rd4 Rb4 Qgg3 Rd1 Re4 Rd5 Ba6 Ra2 Bad3 Kb7 Re2 Kc8 Ng4 Ra1 Nf6 Ra2 Kg7 f8R Kh6 Rf7 Ng4 f6 Qgg1 f5 Re3 Nf4 Bc4 Ng2 Qa1 Rf8 B2d3 f7 Qh1 f6 Bf1 Nf5+ Kg5 Be7 Rh6 d8R Bb5 Bd6 Rd3 Rde8 Qfg1 Kd8 Rd2 Re6 Qg6 Rfe8 Qd4 f8Q Nf2 f7 Qb6 Rf6 Ne4 Qc3 Bd7 Bg3 Bdb5 Qe5 Qg8 Qc5 Nd6 f8N Qg6 Qf2 Qg7 Nge3 Bh3 Ng2 Qg8 Ke7 Qb1 Rb8 Qb7 Kd8 Qg1 Rf7 Re6 Rf6 Qg6 Ra1 Qd1 Ra3 Qg4 Rf7 Re7 Ra2 Qe6 Rf6 Nc4 Ra3 Qeb6 Ra1 Be8 Bc6 Nd6 Ra6 Re6 Ba4 Bb5
Q1N4k/1n2R2N/1BQ2bQB/2r1n2p/brPn1K2/Q1R1B1p1/3NB1r1/3Q4 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 dxc5 g4 f4 g3 h4 Ba6 e4 Ra7 e5 Qc8 b6 Rb7 f6 Qc6 f5 Kd8 f7 Qf6 exf6 Rc7 Ra2 Bc8 Ra1 Rc6 Qg4 Rd6 Qd1 Rd4 Ke2 Rg4 Ke1 Rg5 hxg5 Bb7 Bd2 Ba6 Bc1 Bc8 Ke2 h5 Ke3 d5 c4 e5 b4 e4 g6 a4 c6 a3 b7 d4+ Kf4 a2 b5 d3 b6 d2 g7 e3 c7+ Kd7 Nf3 e2 Ng5 e1N Be2 Kd6 Nh7 Nc6 b8Q Nd4 b7 Be6 c8N+ Kd7 Qa8 Ne7 g8Q Nef3 b8Q Bg7 f8B Ke8 Qc7 Nec6 Re1 Nd8 Qcc6+ Bd7 Qa3 Nb7 Bc5+ Bf8 Bb6 Ne5 Qg4 Kf7 Qa8 Bg7 Qg5 Re8 Qg6+ Kg8 f7+ Kh8 f8B Bf6 Bh6 Rd8 Qa3 Be8 Qa8 Rd5 Qa3 Bd8 f6 Rc5 f7 Bd7 Nc3 Be7 Ne4 Bf6 Rb1 a1R Rb3 Rb1 Rc3 Rb4 Qa8 Be6 f8Q+ Bg8 Qda4 d1R Be3 Rd2 Qd1 Ra2 Qfd6 Bf7 Nd2 Be8 Qe7 Nd8 Qea7 Nb7 Qa3 Rc2 Qf3 Bb5 Qc6 Ba4 Bd3 Be7 Bf2 Rd5 Nb1 Nd7 Re2 Bh4 Re7 Rc5 Be3 Rg2 Be2 Bf6 Nd2 Ne5
1Rb3Qn/1Q5N/3B2P1/6BB/K1RNn1pN/6pn/1n2Nk1b/1qrRN2R w - - 0 1 illegal: Other
1b1NNb2/2B2Qp1/1RQN1PQ1/1B3b2/r2pNB2/N4b1k/5R1B/K3nq1n w - - 0 1 legal: proof: d4 b5 f4 e5 fxe5 h5 g4 a5 gxh5 f5 e4 c5 dxc5 f4 a4 Ra6 axb5 Rah6 Bh3 Rf6 Bf1 Rf5 exf5 Ke7 Qd6+ Kf7 Qd1 Ke8 Kd2 Kf7 Kc3 d5 b4 a4 Kb2 d4 c4 f3 h4 f2 e6+ Kf6 b6 Ne7 b5 Bb7 c6 Qc8 c5 Rh6 c7 Rg6 c6 Nd7 h6 Ba8 b7 Ke5 b8B Rg5 h5 Rg3 b6 Rc3 h7 Qa6 h8N Qa5 c8Q+ Ke4 c7 Nc5 b7 Qb4+ Qb3 Qb6 h6 Re3 h7 Kf4 f6 Kg4 Ne2 Nf5 e7 Qa6 e8N Re6 Nec3 Qb5 Rh2 Nh4 Ne4 Nf5 Nf7 Ra6 h8Q a3+ Ka2 Ra7 Qh7 Nd3 Bf4 Ra4 Nd8 Ne1 Qf7 Qa6 Bb5 f1B Qh6 Bd3 Rf2 Bd6 Qg5+ Kh3 Qgg6 Bc2 Qcd7 Bd3 Qc6 Ng3 c8N Nh1 Bc7 Bf8 Ned2 Bf5 b8B Bb7 Ne4 Ba8 Kb3 a2 Na3 Bb7 Rd1 a1B Ka2 Bc3 Rb1 Ba5 Ncd6 Bb6 Ka1 Ba7 Be2 Qd3 Rb6 Qf3 Bh2 Qg2 Bb5 Qf1 Nc8 Ba8 Bcf4 Bb7 Bbc7 Bb8 Ncd6 Bbc8 Be5 Bg4 Beg3 Bcf5 Bf4 Bf3
1BQn1N1R/p1p4q/1RK5/1rN5/1RN3bb/1Q1R1BNP/2nn3N/1n3Bk1 w - - 0 1 illegal: Other
5RqR/N1K1R2N/1n1pP1BB/n2RB3/n2R1r2/pn2NN1k/3n3b/Q3Q3 w - - 0 1 legal: proof: d4 a5 g4 e5 a4 b5 axb5 f5 f4 c5 dxc5 g5 fxe5 f4 h3 Ra6 Bd2 Rf6 Bc1 Bb7 Na3 Rf5 Nb1 Bf3 gxf5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qc8 Rh6 Qc7 Rh1 Qd8 Kd2 Ke7 Kc3 h5 Kd4 h4 Kd5 a4 b4 h3 c4 h2 e4 a3 c6 g2 b6 f3 c7 f2 c8R Qe8 b7 Bg7 b5 Qh5 b6 Bf8 c5 Qg6 f6+ Kf7 g5 Nh6 c6 Rh7 c7 Ng4 e6+ Kg8 e7 Kf7 Kd6 Ne3 e5 Nc2 e6+ Kg8 f7+ Kg7 Rd8 Nb4 c8N Na2 Bd3 f1N Nd2 Rh4 Na7 Ng3 Ngf3 g1N Nf1 Nh5 Kc7 Nf4 e8R Nge2 Re7 Nac3 Qe1 Nd4 Ne3 Nbc6 b8Q Na5 b7 Na4 Rb1 Rg4 Rb4 Ndb3 Rd4 Kh7 Rf1 h1N Qa8 Kg7 b8B Nf2 Bb1 Qh7 g6 Kh6 g7 Kh5 g8R Ne4 Rh8 Ned2 Qb7 Bh6 f8N Qg8 Nh7 Bg5 Qc8 Bh4 Qb7 Bg3 Bc2 Bh2 Bg6+ Kh6 Qc6 Rh4 Qc3 Nd5+ Kc8 Rg4 Be5 Ndb6+ Kc7 Rf4 Qa1 d6 Rb8 Nc8 Rb5 Ncb6 Rbd5 Re4 Nfg5 Rh4 Rf8 Rf4 Be4 Kh5 Bd3 Bg3 Bg6+ Kh4 Nf3+ Kh3 Nf1 Ne4 Be3 Bh2 Bd2 Rf6 Bh6 Ned2 Ne3 Rf4
1N2qQ2/2nBbB1R/4Rp1R/1B1p1NPq/1n6/3QBk2/3KR2R/Nb1b3q w - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 c5 axb5 a6 d4 f6 dxc5 Kf7 g4 Bd6 g5 Bf8 g6+ Ke8 Bg2 a5 Bf1 Ke7 Na3 Ra6 Nb1 Re6 Qd3 Ke8 Qd2 Re7 Qd1 Rf7 gxf7+ Ke7 h4 g5 Ra2 h5 Ra4 g4 Ra1 Rh6 Bh3 Rg6 Bf1 Rg5 hxg5 Qc7 Qd4 Qb6 Qd1 Qd8 c4 Ke6 b4 Kf5 e4+ Kg6 e6 d5 e7 g3 e8R g2 c6 h4 c5 h3 e5 Kf5 e6 Ke4 e7 h2 b6 a4 b7 a3 b5 a2 c7 Bg7 f8Q Qd7 c6 Qd8 b6 Bf5 c8R Be6 c7 Nd7 b8N Bh6 b7 Nb6 Na3 Bf7 Kd2 Bg6 Nc2 Bg7 Bb5 Na4 Nf3 g1Q Nfd4 Qg4 Nf5 Nc5 Qe2+ Kf4 Qd3 Na6 Re1 h1B Re2 Bg2 Rb1 a1Q Rb2 Qb1 Na1 Bf3 Ra2 Qd7 Rcd8 Qc6 c8B Qh5 Rd7 Nc7 Rh2 Qe6 Ra6 Qf7 Re6 Bd1 Ree2 Qg4 Rh6 Qh5 Rh2 Qe6 Rd6 Qe4 Bcd7 Qh1 Re6 Kg4 Qc3 Qbe4 Qd3 Bh7 Ba3 Qe5 Bc5 Kf4 Be3+ Kf3 Nc6 Qe4 b8R Qa4 Rb7 Qa8 Qf7 Bf8 Nb8 Bg6 Rd8 Qa4 e8B Ne7 Qg7 Qe4 Bf7 Nc6 Rde8 Bc5 R8e7 Nb4 Qf8 Bd6 Bfe8 Bc5 Reh7 Be7 Bf7 Qc4 Ra7 Qc6 Ra2 Qa8 Kc1 Qa4 Rae2 Qa8 Kd2 Qc6 Bc8 Qe8 Bcd7 Bc2 Qc3 Nc6 Nd6 Nb4 Qc4 Bgd3 Nf5 Bd1 Qd4 B3c2 Qd3 Bb1
1NQ4b/1nNB3k/Rq2nB2/1Q2N3/7K/4NN1Q/Pb1pbnpR/2R1bQ2 w - - 0 1 legal: proof: c4 b5 g4 a5 e4 f5 exf5 c5 b4 h5 gxh5 g5 bxa5 b4 Na3 Na6 Nb1 Rb8 d3 Rb5 cxb5 c4 d4 Nb8 Kd2 Rh6 Ke2 Rc6 Ke1 Rc5 dxc5 Bh6 Qa4 Bg7 Qd1 Bf8 f4 Kf7 Kf2 Kg7 Kg3 e5 h4 d5 h6+ Kh7 f6 c3 a6 g4 a7 b3 a8N c2 b6 b2 f7 e4 b7 e3 f5 e2 f6 d4 h5 d3 c6 d2 c7 Nd7 b8N Bd6+ Kh4 g3 f8Q e1B Bh3 Bb7 c8Q Bf3 Nc3 b1N Qe8 Ba3 Bb2 c1B Nd5 Bb4 Rh2 Qa5 f7 Na3 f8R Nb5 Bf6 Be4 Nac7 Qa8 Ne3 Bg2 Nf3 Bb2 Rc1 Nc5 Bd7 Qb7 Qe2 Bh3 Qf1 Nd6 Qe5 Ne6 Qeb5 Qb6 Re8 Ng7 Re6 Nb7 Rec6 B4c3 Re6 Kh8 h7 Bg4 Rc6 Qd4 Ra6 Qb6 Bd8 Ne6 Be7 Kg7 h8N Bd4 h6+ Kh7 Nf7 Nf6 N7e5 Ne4 Bf6 Nf2 Nf7 Kg6 h7 g2 h8Q Bh5 Kg3 Bg4 Qh3 Bh5 Kh4 Kh7 Bd8 Bh8 N7e5 Bg4 Bf6 Bh5 Ng1 Bd1 Ngf3 Be2
4QB1Q/6q1/2Rn3K/1N2PQ1R/k3rpp1/rN3BrB/nBnn4/2B2N1N w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 g5 Bf5 axb3 Na6 b4 Bc8 b5 Nb8 h3 Be7 h4 Bf5 h5 Bg6 Bh3 f5 Bf1 Bf6 gxf6 Bf7 Ra3 g5 Ra1 Bg6 hxg6 Qe7 Ra2 Qd7 Ra1 Qd8 Kf2 Kd7 Ke3 a5 b4 h5 d4 c5 e6+ Kc7 e7 Kb6 e8N a4 d6 h4 g7 g4 Kf4 a3 Kg5 c4 e4 f4 d7 a2 d5 c3 d6 c2 Nc7 h3 Ne2 h2 Ng3 Qe7 d8N Na6 d7 Qd6 f7 Rh3 f8B Ra7 Qd5 Ra8 Qf5 Nf6 g8B Qd1 Nd2 Qf3 Nb7 Nd5 d8B Nb8 Na5 Qc3 Bf6 Rh6 Bh3 Na6 Ndf1 Qa3 Bfb2 Nc3 e5 Nb1 Nb3 Nc5 Bd5 Qa7 Bf3 Nd2 Rb1 Rh7 Ra1 Rd7 Kh6 Nce4 Rb1 Rd4 Ra1 Kb7 b6 Kc6 b7 Kb6 b5 Nd6 Rb1 a1N b8Q+ Qb7 Qe8 Re4 Nc5 Ka5 b6 Kb4 Nb3 Ra3 Nb5 Qa7 b7 Ka4 b8Q Qc7 Rg1 h1R Qbd8 Rh2 Nh1 Rg2 Qdf6 Rg3 Qh8 Qe7 Rg2 Qd7 Rh2 N2c4 Be3 c1N Bd2 Na2 Rc1 Qf7 Rc3 Qd7 Bdc1 Nd2 Rc6 Nc2 Bhg2 Nb7 Rh5 Nd6 Bh3 Qg7+
QR4B1/6kB/4r3/3npKN1/3RNPN1/B1R1pQN1/1b1pn1bN/1q1rB3 w - - 0 1 illegal: Other
3BBkn1/1r3p2/2Rr4/2Q2RQ1/p2p2NP/qbbRK1Q1/1r2B3/1N1QR2R w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Nc6 c5 Na5 bxa5 Be7 Bg2 Bd6 Bf1 Bf8 Kf2 d5 c4 g5 e4 g4 h4 g3+ Ke3 g2 h6 Rh7 e6 Qd6 a6 Qg3+ Nf3 g1R e5 Bg7 c6 Ra7 c7 Ne7 c5 Kf8 b6 Rb7 a7 Rh8 a8Q Rg2 c6 Rh7 Ra3 Ke8 Be2 Rb8 b7 Qe1 Nh2 Bd7 Ng4 Ng6 c8Q+ Ke7 c7 Bh8 Rd3 Rg7 h7 Qa5 Qg8 Bc6 c8R Qa6 Qa7 Be8 Qc5+ Qd6 Rc6 Rc8 b8Q Rc7 Bd2 Rb7 Ba5 Nf8 Bb6 Rg6 Bc7 Bg7 h8R Nd7 Rh5 Nf6 Rf5 Bh8 Qg7 Ng8 Qf6+ Kf8 Qg5 Rf2 Bd8 Bg7 Rc7 Bb5 Rc6 Bc4 Qc7 Bf6 e7+ Kg7 e8R Bb3 e6 Bc3 e7 Rg2 Qc4 Qa3 Qg3 Rf2 Qc5 Rh2 Bf3 Rb2 Be2 Kh8 Rf8 Rd6 e8B Kh7 Bd7 Kh8 Re8 Kh7 Re4 Kh8 Be8 Kh7 Qh5+ Kg7 Qg5+ Kf8 Ref4 Rb8 Rff1 Rb7 Re1 d4+
NN1B1kN1/4p3/n1PrBb1r/3K1R2/1RRpQq1Q/3R1pB1/1br5/1BR5 w - - 0 1 illegal: No possible last move
1r1R4/1BR1N2n/1q2QQ2/rN1PR1N1/4K2p/N1Q3pQ/k3p2b/q1B2q1N w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 h4 g5 f4 Na6 f5 Nc5 f6 Ne4 Na3 Kd6 Nb1 Bf5 gxf5 g4 Ra6+ Kd7 Ra1 Ng5 hxg5 Bh6 Rh5 Bg7 Rh1 Bf8 Kf2 Kd6 Ke3 Kc5 d4+ Kb4 b6 a5 d6 h5 d7 c5 b7 e5 b8N a4 d5 g3 g6 a3 g7 e4 Nh3 c4 Qb3+ Ka5 Na6 c3 Nc7 c2 Ba6 a2 Bb7 h4 Nb5 Ra6 N1a3 Rh7 Qc3+ Ka4 b4 Re6 Nf2 Qc8 d8R Ne7 g8N Bg7 f8N Rh6 f7 Qc7 f6 Rh8 Re1 Nc6 Ne7 Qd6 Nh1 Ne5 Nh7 Ng6 f8Q Qa6 Qg8 Nf8 Ng5 Nh7 f7 Qb6+ Kf4 e3 f8Q Rd6 Qe6 Bd4 Qff6 Rg8 Rb1 a1Q Ke4 Rc6 Qh3 Rc8 Rb3 Ra8 Qfe6 Bc5 Qcf6 Bd4 Rc3 Ra5 Rc7 Kb3 Rf1 e2 Rf5 Qb2 Re5 Qa1 Rd6 Rh8 Nc3 Rha8 b5 Qa6 b6 Rc8 Bb2 c1Q Ba8 Qd2 b7 Qdc1 b8Q+ Qb5 Rd8 Qf1 Bc1 Bg1 Qa7 Qb4+ Qd4 Qb6 Bb7 Rb8 Ncb5 Ka2 Qc3 Bh2
2RbK2R/B2qQQQ1/2P1nB2/q1p1nr2/3Q3q/Nk4p1/1p3R2/1Q3RNB w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 d4 b5 g4 c5 gxh5 a4 d5 Ra5 b3 b4 bxa4 Rb5 cxb5 Bb7 a5 Bc6 dxc6 Rh7 Bc4 Rh6 Bf1 Rh8 Ke2 Kf7 Kd3 g5 Kc4 e5 Kd5 d6 h4 b3 a4 g4 f4 g3 h6 b2 b6 e4 b7 e3 h5 e2 h7 e1Q a6 Bg7 f6 Qb6 a7 Qa6 a8R Nd7 b8B Qee2 a5 Ne5 h6 Qg4 f5 Qb6 a6 Qg6 a7 Ng4 Rh2 Qa5 Bg5 Qa4 Rf2 Qb4 Na3 Nh2 Bg2 Qa4 Qd4 Nf3 Raf1 Qh5 Bh1 Qa5 Bh4 Ne5 Bg5 Kf8 Ke6 d5 f7 Ne7 Bf6 Qh4 Kd6 Rg8 h8R N7g6 h7 Bh6 Ke6 Nf4+ Kd6 Qb5 Kc7 Bg5 Kd8 Qa6 Bc7 Qa5 Rc8 Nf3 a8Q Ne5 Qc4 d4 Bb6 d3 Qd4 d2 Qb7 Qc3 Ba7 d1Q Qa6 Qcd2 Qad3 Qdg4 Qb1 Qa5+ Rc7 Neg6 Kd7 Ne6 Rc8+ Nd8 Be5 Bf6 Rh2 Kg7 Rhf2 Re8 Rf8 Re6 Re8 Qgh3 Rf8 Rd6+ Ke8 Rd5 Rg8+ Kh6 h8Q+ Kg5 f8Q Be7 f6 Qe6 Bc7 Rf5 f7 Qd5 Rd1 Ne6 Be5 Bd8 Rdf1 Qd6 Bg7 Ne5 Qh7 Qdc7 Rh8 Qb7 Be4 Qbc7 Qe7+ Kg4 f8Q Qb7 Nf3 Kf4 Bf6 Qbc7 Qhg7 Qb7 Qa4 Ke3 Ng1 Qbc7 Qad1 Qb7 Qdg4 Kd4 Qff7 Kc3 Bh1 Kb3 Qd4 Qd7+
b2R3Q/3KNQQp/k1pB2R1/r3Pq1N/r1p1bQ1q/N7/2BN1B2/bN6 w - - 0 1 illegal: Other
6k1/rQK1P3/q1B2pB1/NRBbpN1p/N2N3r/Nn1pQ3/2R2R2/5nB1 w - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 c5 dxc5 d5 a4 d4 axb5 e6 f4 Nh6 e4 Qd7 f5 Qd5 exd5 Ng8 f6 Be7 fxe7 Kd7 Ke2 Ke8 Kf3 h5 Ke4 a5 Ke5 a4 Kd6 a3 g4 e5 b4 a2 c4 d3 b6 f6 b5 Kf7 g6+ Kg7 c6 Ra3 g5 Rb3 c5 Bf5 b7 Ra3 c7 Rc3 c8Q Rc4 c6 Bd7 b6 Rd4 c7 Rh7 Qd2 Nc6 b8B Ra4 b7 Ra6 Nf3 Ra8 Ba7 Nh6 b8R Nd4 Rh2 Bh3 Bc5 Bd7 Qb7 Bf5 c8N Ra3 Bg2 Nc2 Nb6 Ra4 Kc7 Ng8 d6 Nd4 d7 Be4 d8N Rc4 Na4 Ne2 Qe3 Bd5 Na3 Re4 Nc6 Bc4 Nfd4 Rh4 Na5 Rf4 Bc6 Rf5 Rf2 Rf4 Bb2 Bb3 Rc1 a1Q Rc2 Ng3 Bc1 Kh8 Bb2 Rf7 g7+ Kh7 Bc1 Nh6 g8N Nhf5 Nh6 Rf8 g6+ Kg7 Bb2 Bd5 Bc3 Kh8 g7+ Kh7 Be1 Rh4 g8B+ Kh8 Bh7 Nf1 Bg6 Kg7 Ndb5 Nd4 Nf5+ Kg8 Bc3 Nb3 Nbd4 Qa2 B3b4 Rd8 Ba7 Re8 Bbc5 Rd8 Qa6 Re8 Rb5 Ra8 Qb7 Qa1 Bab6 Ra7 Qg5 Be6 N5c4 Ne3 Rg2 Rg4 Nb1 Kh8 Nac3 Nd2 Nf3 Rg3 Bb4 Qa4 Nba3 Qa5 Na4 Qa6 Na5 Nef1 Bg1 Rh3 Rf2 Kg8 N3d4 Nb3 Qe3 Bd5 Bc5 Rh4
bKQ2QBn/p2NR3/1B4r1/1B6/2P2r2/3p2NN/k1p2nbp/1N1RNB1Q w - - 0 1 legal: proof: b4 g5 f4 e5 fxe5 b5 c4 g4 a4 g3 axb5 Qf6 b6 Qf3 b7 Qf6 hxg3 Qg6 g4 Qf6 g5 Qd8 b5 Bb4 Ra2 c5 Ra6 Bc3 Ra1 Qa5 b6 Qb5 cxb5 c4 Rh3 Bb4 Rh2 c3 Rh3 c2 Rh1 Bc3 dxc3 Kf8 Ra2 Ke7 Ra1 Ke8 Kd2 Ke7 Kd3 Ke6 Kd4 h5 Kc5 f5 g4 d5 e4 h4 c4 f4 g6 h3 g5 h2 g7 f3 g6 d4 Be3 d3 Nh3 Nc6 b8N f2 b7 Na5 b6 Nb3+ Kc6 Nc1 Kc7 Nb3 Nd7 Na5 b8Q Rh7 b7 Rh4 Bb6 Ne7 g8N Rh8 g7 Rh7 Ngf6 Ng6 g8B+ Rf7 Nh5 Nf8 Ng3 Ke7 e6 Rh7 Ne5 Rh4 Nf3 Nc6 e5 Rf4 Ne1 Ng6 Ra5 Bd7 Qc8 Nh8 b8N Be8 Kb7 Bg6 Rg1 Be4 Nd7 Bd5 Qf3 Be4 Qh1 Bf3 Be2 f1B Ra6 B1g2 Bf1 Na5+ Kc7 Nb7 Ra5 Rb8 Rd5 Nc5 Rd4 Ba8 Re4 Rf8 Re3 Ne4 Re2 Rd8 Re3 Nf2 Re2 Ke8 e7 Ne4 Nf3 Nf2 Nf8 Rb7+ Kc6 Nd1 Re4 Ng6 Be2 Ne3 Rd1 Ng4 Bf1 Nf2 Ne1 Rd7+ Qb7 Rd6+ Kc7 Rd4 Qc8 Nh8 Kb8 Rd6 Bh7 Kf7 e8B+ Ke7 Bb5 Rg6 e6 Rd4 Bg8 Kd6 Re3 Rf4 e7 Rf7 e8Q Rf4 Bc7+ Kc5 Nd7+ Kb4 Qf8+ Kb3 Bb6 Kb2 Re7 Ka2
1n2B2K/6Rp/2q4B/QB1NR1Nb/5n2/1k1pBp2/N2q1NpP/B1n1R2Q w - - 0 1 legal: proof: f4 c5 d4 a5 a4 b5 axb5 e5 dxc5 d5 e3 d4 e4 Ra7 Bc4 Rd7 Bf1 Rd5 exd5 Ba6 Bd2 Bb7 Bc1 Bc8 g3 f5 Qf3 g5 Qe3 e4 Nd2 Kd7 Qd3 Nf6 Nb1 Ng4 Qd1 Bg7 Ne2 Be5 Ng1 Rf8 fxe5 f4 Qd2 f3 Qd1 Rf4 gxf4 Ke7 Nd2 Ke8 Nb1 Kd7 Kd2 a4 c4 a3 b4 a2 d6 Ke6 f5+ Kf7 e6+ Kf6 c6 Ke5 d7 e3+ Kd3 e2 f6 e1Q c7 Qf2 f7 Qg8 f8B Qg7 d8N Qf6 b6 Ne3 c5 Kd5 b7 g4 c6 g3 b5 g2 b6 Nf5 e7 Qb2 e8B Be6 c8Q Nd7 b8R Bg8 b7 Qb3+ Nc3+ Ke5 c7 Qff7 Ne6 Nh4 Qd8 Qe7 c8N Qg7 Ng5 Qbf7 N1h3 Nf5 Qa5+ Qd5 Nf2 Nd6 Ne7 Nf5 Be3 Qf6 Bh6 Qc5 Ned5 Kd6 Ke4 Ng7 Bb5 d3 Re1 Bf7 Re2 Qc8 Qh1 Ne6 Rae1 a1N Na2 Qfc3 Kf5 Bh5 Ra8 Nb8 Ra7 Q3c6 Kf6 Nf4 Kg7 Nb3 Kg8 Nc1 Kh8 Na6 b8B+ Q8c7 Bd2 Kc5 Re5 Q7d6 Bc7 Nb8 Bc3 Qg6 Ba1 Qe4 Bd8 Qb4 Rg7 Qc3 Be7+ Kd4 Bb4 Qb2 Bd2 Kc5 Ba4+ Kc4 Bb5+ Kb3 Be3 Qd2
rK5R/1ppk2B1/3n2p1/1pnbQN2/1Pp1Q1B1/4N3/1B1R2rN/Q3B1NN w - - 0 1 illegal: Other
1k1rR2n/2RK1Brb/7r/B2RbQ1R/1N1B1q2/P3n1Bq/1n1b2Q1/1R1N2N1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 g5 f4 b5 h4 c4 d4 c3 a6 g4 d6+ Kd7 f6 c2 h6 g3 h7 b4 h5 e6 a3 b3 d5 b2 f7 g2 f5 Qe7 f6 Nh6 a7 Qd8 Qg4 Bg7 f8R Qb6 Re8 Qf2 Bf4 c1B Nc3 b1N Bc4 Rg8 h8R Na6 Nd1 Nd2 Rh7 Rh8 Rb1 Nf1 Qf5 Ne3 Bg3 Nb4 Rh3 Rb8 a8Q Bd2 Bb3 Ba6 Ba2 Rc8 Bc4 Ng8 h6 Ne7 Rh5 Qf3 Ba2 Bd3 Bb3 Qg4 Bc4 Qh3 Bb3 Bf8 f7 Ng6+ Kf6 Bc2 Rg7 Nd3 h7 Nb2 Ba2 Rg8 h8B Be4 Rgh7 Rc6 Bg7 Nh8 Ke5 Be7 f8B Rc8 Bf6 Rg6 B8g7 Bf8 Bd8 Rh6 Ba5 Be7 Bb3 Bd8 Qb7+ Bc7 Ba2 Rd8 Qc6+ Kc8 Bb3 Kb8 Bc4 Bb6 d7 Bc7+ d6 Rc8 d8N Bd3 Qcf3 Bc2 Q3g4 Bd3 Qgg6 Bc2 Kf6 e5 Ke7 e4 d7 Be5 Bf7 Bd3 Nf3 g1R Nc6+ Kb7 Nb4 Kb8 d8R Rg2 Bh2 Rg5 Bf6 Rg3 Qg8 Rg7 Kd7 Nd5 Ng1 e3 Qe6 Bf4 Bd4 Rg3 Bg6 Bg5 Kd6 e2 Na2 Bf6 Rc7 Ne3 Bf7 Bh7 Qf5 Be5+ Ke7 Rg4 Rd5 Rg2 Qgg4 Rg3 Qge4 Rg7 Bg3 Qg4 Rg5 Qf4 Nb4 e1Q Kd7 Qef1 Rh5 Qh3 Qg2 Rd8+
kqq1B2B/1R6/8/r2r1P1R/n2BN1qK/bQBnB1Q1/1nN5/Nbb1NQ2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 e5 f4 c5 Kf2 Kc7 Kg3 Kb7 d4 a5 f6 g5 h6 g4 f5 c4 b6 c3 d6 a4 f7 c2 b5 e4 h5 a3 d5 a2 h7 e3 h6 e2 d7 e1N d6 Nd3 Na3 Nf6 Rh5 Ra6 Be3 c1Q Rb1 a1B Nf3 Nf2 Nc2 Bg7 f8B Nh3 Kh4 g3 Nfe1 Bd4 Na1 Qe8 d8N+ Ka8 d7 g2 Nb7 g1Q d8N Be5 Bfc5 Ne4 Nc6 Nc3 Nb4 Na4 Nd6 Bf8 Ne4 Nc6 Bcd4 Be6 Nbc2 Nb4 Bc3 Rg8 h8B Nf4 h7 Nfd3 Bg2 Bc7 Bhd4 Ndb2 h8B N4d3 Bf1 Ba3 b7+ Kb8 Qe2 Ba2 Bg2 Bf4 Qf1 Ra5 Bh1 Kc7 b6+ Kc6 Bg2 Qb8 Bf3 Rd8 Bg2 Qc7 b8Q Rdd5 b7 Qc8 Qe5 Qb8 Bh1 Qgg8 Qg7 Qd1 Qg3 Qbc8 b8Q Qe2 Qe5 Kb7 Qe6 Ka8 Qb6 Qb8 Qb3 Qgc8 Bf3 Qd1 Be2 Nb4 Bb5 N4d3 Be8 Qf3 Rd1 Bb1 Rd2 Bh6 Rf2 Qe2 Rf4 Qd1 Rg4 Qe2 Rg7 Bf4 Rb7 Qd1 Bg1 Bc1 Bge3 Qg4+
q4n2/1nRB1b1R/1n1B3Q/rQ2PR1N/1r2k3/1qQNBR2/1Qrb4/K1Q4q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e6 Ke7 h4 Kf6 d4 Kf5 Kd2 g5 Kc2 c5 b4 a5 Kb2 g4 e4+ Kf6 d6 g3 d7 a4 h6 g2 d5 Ke5 b6 f5 b5 c4 b7 f4 d6 f3 e7 f2 e8Q+ Be7 h7 Nh6 b6 Ra7 h5 Ra5 Nf3+ Kf6 Ra3 g1R Ne5 Rg4 Nd2 Rg7 Bh3 Rg5 Nf1 Nf5 h6 Rg4 Ng3 f1Q Rf3 Qd3 Be3 Qd5 Kb1 a3 Qg1 Rhg8 h8Q+ Ke6 h7 a2+ Kb2 a1N Qh5 Qe8 d8R Nb3 Rd7 Nc5 Rc7 Na4+ Ka1 c3 d7 c2 d8R Nd7 b8Q Nf8 b7 Bb4 Qg7 Qf7 h8Q Nd6 Nd3 Bd7 Qe1 Be8 Qb2 Bc3 Qb1 c1Q Rh2 Qh1 Qc1 Be1 Qhc3 Rg5 Rdd7 Qc6 e5 Kd5 Re7 Rb4 Bd7 Qa6 Rh3 Qa8 Rf5 Qe6 Rh7 Bf7 Qg6 Rgg4 Nh5 Ke4 Qg7 Qb3 Qh6 Rg2 Rhf3 Re2 Qa7 Rd2 Qb6 Rc2 Qb5 Bd2 b8B Qa7 Rc8 Nb7 Bd6 Qa8 Rc7 Nb6+
kbnQ2RQ/2K5/q2R1Nr1/BNRrP3/qBq2B2/1n2Bb2/5N2/rbR2B2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 g5 Ke4 a5 h4 c5 d4 Kc7 b4 Kb7 h6 a4 b6 g4 e6 f5+ Ke5 a3 e4 f4 b5 f3 h7 a2 e7 f2 e8N c4 h5 g3 h6 g2 d6 c3 d5 c2 d7 Ra5 d6 Be7 Be3 c1R Na3 Ra6 Nf6 Rc2 Rc1 Ra5 Rh5 Qc7 d8R Na6 Nh3 Qc4 d7 g1Q Qd5+ Kb8 b7 Bc5 Qd6+ Ka7 b8B+ Ka8 b6 Rd2 Nb5 a1Q+ Qd4 Qaa2 Bd6 Ne7 Rf5 Rf8 h8R Qg4 h7 Rg8 Rg5 Rg7 Rhg8 Rg6 h8Q Qaa4 Rh5 Qge2 Rf5 Ra2 Qd1 Ra1 Rg5 Ba3 Bb4 Nc5 Kd6 Nb3 Rc5 Bb2 Kc7 Bd4 Rdf8 Qea2 d8B Bg4 Rf7 Nc8 Rd7 Bf3 Rd6 Ra6 Na3 Ra5 b7+ Ka7 b8B+ Ka8 Nb5 Q2a3 Bd3 f1B Nf2 Bh3 Bf1 Bf5 e5 Qa2 Bf4 Bb1 Ba7 Qae2 Nc3 Qa6 Nb5 Qc4 Rcc6 Bc3 Bae3 Bd4 Qd2 Ba7 Rc5 Rg1 Qd1 Rg6 Na3 Nb6 Rd5 Bh1 Rc6 Nd2 Kd6 Rc5 Nb5 Nc8+ Kd7 Qcc2 Bda5 Nb3 Kc7 Bf3 Rdd8 Qe2 Qd6 Rd5 R6c5 Qc4 Qf8 Qe2 Rd6 Qc4 Qd8 Bb8+
R1b3K1/nQ2b3/2N4P/1B1q1q2/1BB3k1/BNRQ3N/RNr1b2n/2rqN1n1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 e4 f6 Kg6 c4 Kf7 f5 b4 c3 d4 a4 h4 a3 b6 f4 e6+ Kd6 b5 a2 h6 c2 e7 g4 e8B g3 b7 f3 e5+ Kc7 d6+ Kb6 d7 Kc7 h5 g2 b6+ Kc6 e6 Kd5 e7 Ke4 h7 Kf5 h6 f2 d5 Nf6 d6 Na6 b8R Ra7 b7 Ng8 Ra8 Qc7 b8Q Qa5 d8N Nc7 d7 Rb7 Nf3 g1Q Nc6 Rb3 d8N Ba6 Rh3 Qh1 Qb7 Kg4 Nbd2 Rb2 Bc4 f1B Nb3 Nf6 Ne6 Nb5 Nf4 Be2 Qd3 Na7 Ne1 Qf5 Re3 Rb1 Ba3 c1N Nh3 Rb2 Bd7 Rc2 e8N Be7 Nd6 Rc8 h8B Qe4 Bg7 Qg2 Bf8 Qd5+ Be6 Rc7 Bb5 Rc8 Nc4 Rc7 Rb1 a1Q Rb2 Rc8 Ra2 Qad4 Qc3 Qd1 Qd3 Rc7 Qb6 Bc8 Qb7 Bf1 Rf3 Ne2 Nb2 Ng1 Kg7 Be2 Bf7 Nh5+ Kg8 Ng3 Re3 Nf1 Be6 Bh4 Bfb4 Be7 Bf7 Nh2 Rf3 Qd4 Bfc4 Qdd5+ Kg7 Qb1 Qe3 Rd7 Qb8 Qde5+ Kg8 Rd1 Qb7 Qd6 Qd2 Qdc5 Rc3 Qcd5+ Kg7 Qc1 Qd3 Qd2 Kh8 Rdc1 Kg7 Qd1 Kh8 Qd4+ Kg8 Qdd5+
R5BQ/5RrR/2P1N1rb/R3q1Bn/2N2q1r/R2n1q1Q/b2KQ1nB/k2B4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 b4 Kf6 f4 e5 h4 d5 b6 a5 b5 g5 c6 g4 c7 a4 c5 a3 h6 g3 h5 d4 c6 d3 b7 e4 b6 a2 h7 e3 h6 g2 Nd2 e2 Nh3 g1N Nc4 Qe8 Kd2 e1R Be2 Qf7 Ng5 Qg6 Ne6 Na6 b8B Ra7 b7 Qg3 Bf3 Qh2+ Qe2 Nc5 Bh5 Bd7 c8B Nh3 Bc7 Bg7 b8R Rg1 Rb3 Rg6 Ra3 Be8 Ba6 Bf7 Bb5 Rb7 Ba4 Qf2 Bd1 Ra7 Bf3 Qg3 Bd5 Qf3 Rb1 a1Q Rb5 Qe5 Rba5 Bf8 Ng5 Be6 Bb8 Rag7 Bc7 Bf7 Ne6 Ke7 Rh2 Nf6 Bb8 Nh5 f6+ Ke8 f5 N3f4 Rh1 Ng2 Bc7 Bg8 f7+ Ke7 Rh3 Kf6 Rh4 Bd6 f8R+ Bf7 Rfa8 Bf8 Bb2 Qg3 Bd4 Qf4+ Be3 Rhg8 h8Q Rg4 Rh3 Rh4 Qh7 Rg6 Qh8+ R8g7 h7 Bg8 Kc1 d2+ Kc2 Kf7 f6 Nd3 Bb8 Ke8 f7+ Ke7 Bd6+ Kf6 Rh1 Qf1 Bh6 Qff4 Bg5+ Kf5 Bc5 Ng3 Nd8 Rh5 Qe3 Nf1 Nb2 Qe6 B1f3 d1Q+ Kc3 Qb8 Bd6 Ng3 Qf2 Qf1 Kd2 Qf6 Bdf4 Qbe5 Bd1 Rh3 Be6+ Ke4 Qe2+ Kd4 Bc4 Qf3 Bcb3 Be7 f8R Qff5 Rf6 Bf8 Bc4 Be6 Qg8 Rc7 Bcb3 Bc4 Qe6 Rh5 h8Q Rf7 Bbc2 Ba2 Bb3 Rhh7 Qc8 Rb7 Rh2 Rb4 Rh6 Nh5 Bh2 Re7 Rh7 Bh6 Bg8 Reg7 Rf7 Qf5e4 Qh3 Qeg4 Bb3 Ra4 Kd1 Kc3 Ne6 Rd4 Nc4 Rf4 Nd2 Kb2 Nc4+ Ka1 Kd2 Qgf5 Bc2 Rh4 Bd1 Qf5f4+
bb2Q1B1/1R5P/R3rBNq/B1NbB2n/q2nR3/rRBqQ2r/kN1K4/8 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Ke7 b4 c5 d4 a5 h4 f5 d6+ Ke6 h6 g5 d5+ Kd7 h7 c4 b6 a4 b5 a3 h5 g4 e6+ Ke8 h6 c3 b7 a2 e7 Kd7 e8R g3 e5 c2 b6 g2 Nc3 f4 Nge2 g1R Qd3 f3 Kd2 f2 Nd4 Qg5+ Qe3 Ra7 Bb2 Qf4 Bc4 f1B Nd1 Be2 Bc3 Nc6 b8B Qf2 b7 Rg3 Rh3 Nf6 Nb3 Qf3 Nb2 Nd4 Re6 Rhg8 h8N R8g6 h7 Ra3 Re8 Rh6 Ng6 Nh5 Bc7 Bg7 b8R Bb7 Re6 Ba8 Rb7 Bf8 Re1 a1Q Nc5+ Kc8 Ba2 Bc4 Bb8 Kd8 d7 Bd6 Rf6 Bc7 Ra6 Bb3 e6 c1Q+ Kd3 Bd6 Re2 Bf4 Be5 Qch1 Kd2 Qe4 Rh4 Rh3 Re1 Bg3 Rb1 Qef3 Re4 Bc4 Bh8 Bb8 Rb3 Kc7 e7 Qg3 e8Q Qd6 Be5 Qf3 Nf4 Re6 Ng6 Qf4 Ke1 Qh6 d8B+ Kc8 Bh4+ Qd8 d6 Bcd5 Qf7 Qd7 Bhf6 Qb5 Kd2 Qa4 Rg1 Qf1 Rb7 Qfc4 Rb1 Qcb3 Bh8 Kd8 d7 Qbc4 Rb3 Qf1 Bef6+ Kc7 Qe8 Qf3 Ra5 Kd6 d8B Qf1 Rb7 Qfb5 Bb6 Qd7 Ra6 Kc6 Bb3 Kb5 Bhg7 Nf5 Bce5 Nd4 Ba2 Kb4 Bc4 Rb3 Ba5+ Ka3 Bh8 Ka2 Bhg7 Nf5 Bec3 Qdb5 Bfe5 Nd4 Bgf6 Qd7 Bg3 Qdb5 Bgc7 Bc6 Bce5 Re7 Bg8 Bd5 Nbd3 Ra3 Rb3 Re6 Nb2 Qd3+
2QKb3/P2QR2B/nR2nbrB/B4qRN/qb2R1B1/3q2N1/r2k1r2/1R3Q2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 d4+ Ke4 a4 e5+ d6 b5 h4 g5 f4 g4 d5 g3 h6 b4 h5 b3 h7 b2 a6 c6 h6 g2 f6 Bd7 a7 Bf5 a5 Qd7 Kb6 c5 f7 c4 a6 c3 Ra5 c2 Be2 Nc6 Nh3 g1R Bg4 Rg3 Qf1 Nd4 Nd2+ Ke3 Rg1 Ne2 Ne4+ Kd3 Ra1 Qe8 Kc7 b1Q d7 Qe7 d6 Rf3 Ng3 Qe6 d8Q e4 d7 Bg7 f8Q Qbb3 Rb1 Bg6 f5 e3 f6 Qb5 f7 Bf6 Nf4+ Kc3 Nfh5 Rb8 a8B Rb6 a7 Rf2 Be4 Nd4 Qc8 e2 d8B e1B Qe7 Qd3 f8R Bf7 Re8 Qf5 Qed7 Ne7 Bg5 Rg8 h8R c1Q h7 Qcc2 Bh6 Nec6 Re7 Rg6 Rhe8 Qa4 h8R Ra6 Rhg8 Nb8 Rb6 Qg5 Bef5 Kd2 Re4 Ra5 R8e7 Be8 Rh1 Rg7 Bh7 Rg6 Bf8 Qf5 Rgg7 Rh6 Rg5 Rg6 Bh6 Ra6 Qb7 Ne6+ Kc8 Nf8 Bc7 Ra5 Kd8 Na6 Qb8 Qa1 Qa8 Ra2 Qc8 Qd1 Be5 Qa4 Bc3+ Kc2 Ba5+ Bec3 Qg2 Kd2 Rhb1 Bb4 Qf1 Ne6+
1RNb2b1/2nQr2B/8/5KbR/R1QNb2N/4Bn1r/P3bRRr/1QQ2q1k w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 c5 Ke4 b5 d4 e5 f4 h5 g4 b4 a6 h4 d6 c4 g6+ Kf6 g5+ Kg7 d5 b3 d7 h3 a7 h2 d6 b2 Bd3 c3 Ne2 c2 Nd2 b1B Nf3 Ba6 Nh4 Nh6 f6+ Kg8 f5 Bg7 Nd4 Qf8 d8Q Nf7 Be3 c1B d7 Rh6 Bc2 Be2 Qb6 Na6 d8Q Nc7 Qd7 Rh8 Rg1 h1B+ Rg2 Rb8 Qc5 Rb3 a8R Bh6 g7 Kh7 g8N Ba3 Bc1 Rh3 Be3 Bb4 Qc4 Be7 Ra4 Bd8 Ne7 Rh2 Bd3 Bc2 Qb1 Bb3 Qcc1 Be6 Bg1 Bc4 Nc8 Bb3 Ke3 e4 Kf4 e3 Bf2 Qg7 Bg1 Ne5 f7 Nf3 f8R Qf7 Ke4 Kg7 g6 Kf6 g7 Bg5 g8Q Bc4 Re8 Qf8 Qgd5 Rh6 Qc5 Bg8 Q5c4 Rh8 Ng6 R8h3 Nh4 Qb4 Re5 Qe1 Rb5 Qf1 Rb8 Bd1 Bc2 e2 Be3 e1R Bd3 Be2 Bc2 Rg3 Bd3 Bf4 Bc2 Kg5 f6 Kh5 f7 Bfg5 f8R Rgh3 Rf2 Bg2 Rf5 Kg4 Rc5+ Kg3 Bd3 Bf4 Rh5 Bfg5 Bc2 Rh1 Kf5 Kh2 Kg4 Kg1 Bh7 R1h2 Kf5 Kh1 Qbd3 Ne5 Rab1 Ba8 R1b2 Nf3 Qdb1 Bd1 Bd2 Re7 Be3 Bad5 Rg2 Bb7 Rbf2 Be2 Bd2 Ba8 Be3 Be4+
1NbNb3/2B1Q1N1/KRrn2k1/2R2R2/1b1Q1b2/1q3PNr/2NB2R1/1nbr1B2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 a5 g4 e5 d4 h5 b4 e4 b6 e3 Kb5 h4 f6 e2 g6+ Ke8 b7 e1B d6 h3 g7 Kf7 f3 a4 d5 h2 g5 c4 d7 c3 d6 c2 g6+ Ke6 f7 Kf6 Bd2 c1B Na3 Nc6 b8N Rh3 Ne2 Be7 f8N Bf2 Rb1 Na5 Ng3 Bd4 Ne6 Nh6 g8R Ra6 g7 Nb3 Nc2 a3 Rf8+ Nf7 g8R a2 Ng7 a1R Qe2 Qc7 d8Q Rc6 d7 Qb7+ Qb6 Bf2 d8N Be3 Rg1 h1B Rg2 Bf4 Qe1 Qc7 Qd4+ Kg6 Rb2 Bc5 Qe7 Qd6 Rh8 Qd5 Rh5 Bd7 Rf5 Be8 Rh8 Qe6 Rhh5 Bcd6 Rc5 Rb1 Rhf5 Ra1 Be3 Nd2 Rb3 Nb1 Bd2 Rc7+ Kb6 Rc6+ Kb7 Qd5 b5 Qc4 b6 Qa4 Ra5 Bb4 Ka6 Nd6 Rb2 Rc4 b7 Qb3 Nd7 Rc7 b8B Rc5 Bc7 Rc4 Rh2 Bg2 Nb8 Rc3 Bb5 Bf1 Rg2 Bc4 Rc5 Be6 Bf1 B6d7 Rba2 Bg4 Rab5 Be6 Raa5 B6d7 Rf5 Rc6+ Rb6 Bc8+ Nb7 Na3 Qee4 Bb2 Qe7 Rd1 Rae5 Nb1 Rc5 Be6 Nd8 Bc1 Na3 B6d7 Nc2 Bc8+
2n1bqR1/1Rr2B1K/2NR1b2/3bnN2/b1Q3B1/1Pb5/3NRQN1/B2kN1rr w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 c5 e4 a5 g4 h5 d4 c4 e6+ Kd6 e5+ Ke7 d6+ Ke8 g6 a4 d7+ Ke7 Kg5 h4 g7 a3 Kg6 a2 g5 h3 d5 f4 b3 h2 b6 c3 b7 f3 Qe1 c2 Nd2 f2 Be2 f1B Ngf3 Ra7 Qf2 Rh5 Ne1 Qb6 d8N Bh3 d6+ Ke8 e7 Kd7 e8N Bg2 Nc6 Ke6 d7 Kd5 d8N Nd7 b8R Rc7 e6 Qc5 Nd6 Be7 Bb2 c1R Bg4 Bb7 Rf1 h1B Nf5 Qb4 Rb1 a1B Bd4 Bc8 Rb7 Bc3 Rb2 Bf6 Rc2 Qf8 e7 Rh2 e8B Bf3 Nb1 Ke4 Bf7 Bhg2 Be5 Rh1 Ne6 Be2 Rb2 Bb5 Nf4 Ba4 Ra2 Rg1 Kh7 Ne7 g6 Bh4 g8R Rd1 Bh8 Ne5 g7 Bd7 Rb2 Bf3 Nfg2 Nc8 Rd2 Be8 Rd5 Be2 Rd6 Rh1 Rg1 Bc4 Rf1 Rh3 Rh1 Bd5 Rh2 Rg3 Nf3 Kd3 Nbd2 Kc2 Nfe1+ Kc1 Rh3 Rd3 Re3 Rd4 Re2 Re4 Nef3 Rg1 Nfe1 Kd1 Qf3 Ng6 Bh3 Bb2 Qf2 Re3 Bg4 Qe7 Rf8 Rh3 Ra7 Rhh1 Rb7 Ba1 g8Q Be6 Qg7 Bd5 Rg8 Qf8 Qc3 Bb2 Bd4 Ne5 Qc4 Ba1 Bc5 Bd4 Ba3 Bc3 Bb2 Re7 Ba1 Rd7 Bf3 Rc7 Bg4 Bf6+
4QRNn/b3N1nk/n1Rq1B2/2Q2P1r/bB1nb3/K1R2r1Q/Q2nB3/2R4R w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 Kg7 f4 h5 d4 e5 Kd2 a5 Kc2 c5 Kb3 h4 g6 h3 f6+ Kh6 b6 c4+ Ka3 h2 d6 a4 d7 c3 g7 c2 b7 e4 f5+ e3 f7 Rh7 d5 Bd6 f8R Ra7 Qd4 Qe8 d8B Ra8 g5+ Kh5 g6 Kh6 Qc5 Nd7 b8Q Qe4 b5 Ndf6 b6 Nh5 b7 Ne7 g8Q Qe6 g7 Bd7 Be2 Ng6 Nh3 Nh8 Bd2 c1N Ng5 Na2 Bf6 Nb4 Qe8 Na6 Bb4 Bb8 d6 Ba7 b8R Bc6 d7 Qd6 Rc1 h1B d8Q Bhe4 Qa2 Bd7 g8R Ng7 Rb6 Rc8 Bc4 e2 Rc6 e1N Be2 Nf3 Nc3 Nd4 Nd5 Rb8 Ne7 Rb5 Qcb6 Rc5 Qa8 Rc3+ Qb3 Rf3 Qc5 Be6 Qd3 Bb3 Rc3 Bc2 Rc1 Bd1 Ne6 Bb3 Nf4 Bd1 Nh5 Bc2 Kb2 a3+ Ka2 Ba4 Qe3+ Rf4 Qh3 Rf3 Rh1 Nge6 Rgg1 Ng7 Ka1 a2 Kb2 a1N Rgc1 Nab3 Ka3 Bb6 Qa7 Nd2 Qaa8 Nc7 Qa6 Ba7 Qac4 Na6 Qa2 N2b3 Bh4 Nd2 Nf6 Nge6 Bg5+ Kg7 Nfg8 Rh5 Bh4 Kh7 Bf6 Ng7
1q2k3/1N1R2bR/1Rrr1Pb1/4K3/2BN2Q1/1Q2B1n1/rR1B1rN1/BB1nr2b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 h5 Kf3 a5 Kf4 c5 d4 a4 g4 h4 b4 a3 g6 a2 g5 c4 d6 h3 f6 h2 f7+ Kd7 g7 c3 d5 c2 b6 e6 b7 Rh7 g6 Nh6 g8B Na6 b8B Rg7 b5 Qc7 b6 Ra7 b7 Qc5 Na3 Qc7 Nc4 Nf5 Nf3 Nd4 Bd2 c1R Bh7 Rg8 g7 Rb1 Ne3 Nf5 Nd4 Nc5 Ke5 Ra4 f4 Na6 Qg4 Rc4 Ng2 Nc5 Ba7 Qd8 b8R Ng3 f5 Nce4 Rb2 Rc6 Bc4 Rd1 Rab1 a1R f6 Rh8 g8Q Bg7 f8B Ke8 Rb6 Qc7 R1b2 Nc3 Bb1 Ra2 Be3 Qb7 Bd2 Rf1 Be3 Nd1 d7+ Kd8 Qf7 Rf2 Bb4 Rd6 Bbd2 Qb8 Qfg6 Ba6 Qd3 Rf8 Qb3 Rg8 Bf1 Bd3 Be2 Bg6 Bc4 Kc7 d8N Kd7 Nb7 Rc8 Bbd3 Ke8 Bb1 Rdc6+ d6 Rd8 Rg1 h1B Rf1 Re2 Rf5 Rf2 Rh5 Rd7 Rh7 Nf5 Ke4 e5 Kd5 e4 Ke6 Ng3 Ke5 Rdc7 d7+ Kf8 Bf4 Rd6 Bfe3 Rcc6 d8R+ Be8 Bh6 e3 Rd7 e2 Bhe3 e1R Rb5 Rfe2 Bc5 Bh5 Rb6 Bg6 Bcb4 Ke8 Bbc3 Nf5 Rc2 Rf2 Ba1 Ng3 Rb2 Be4 Bc3 Bd3 Bd2 Bg6
3b1B1R/6n1/1q1bBN2/N1kb2rN/1n1nQr1B/6r1/P2QRQ1B/b1N1B1K1 w - - 0 1 illegal: No possible last move
1R4Q1/2nbkbnK/1B2Br2/n2R3N/3b4/1QR1PQr1/1Nq1r1QQ/B1R1b3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 a5 Kf3 f5 Kf4 c5 d4 c4 b4 c3 h4 c2 h6 a4 e6 a3 h7 a2 e7 g6 Kg5 f4 b6 f3 h5 f2 b7 Be6 d6 Qb6 e3 Ra7 d5 Bg7 b5 Nd7 b8R+ Qd8 h6 Bc3 b6 Ra5 b7 Bb2 Qf3 Bd4 Bc4 f1B Bb2 c1N Nh3 Ne5 Nd2 Ned3 Nf4 Qc8 d7+ Kf7 d8B Ra6 d6 Bh3 d7 Nb3 Rac1 a1B Nh5+ Nf4 Rc3 Na5 Bb6 Nf6 d8R N6d5 Rhc1 Nc7 Rd5 Bd7 Bb3 Bhe6 Nc4 Ke8 Ba2 Bf7 Bb3 Rf8 h8Q Rg8 h7 Nfe6+ Kh6 g5 Qhf6 g4 h8Q g3 Kh7 g2 Qg6 g1R Qgg2 Re1 Qe5 Re2 Qd6 Qd8 Qdh2 Rg3 Ba2 Ng7 Bb3 Bc8 Ba2 Qd6 Bb3 Kd7 Ba2 Ke6 e8Q+ Qe7 Qg8 Qc5 Bb1 Ke7 Bf5 Bd7 Be6 Bf6 Rf8 Qc6 b8Q Bh4 Qb7 Qa4 Rb8 Qd1 Ba7 Rd6 Qb3 Qd2 Bb6 Qc2+ Rcd3 Rc6 Be5 Bd4 Nb2 Nf5 Rc3 Ng7+ Bf5 Rcg6 Be6 Rf6+ Nd3 Rg5 Rc6 Bc5 Ba1 Bd4 Rc3 Rgg6 Nb2 Be1 Qf5 Rg3 Qfe4 Rfg6 Qef3 Rf6+
1NRN1rq1/2N1BQ1b/1kN1Rn2/b1rBn3/5r2/2QPN1BQ/b4B2/Kn5n w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 a5 f4 c5 f6 Kc7 b6+ Kb7 d6 e5 d3 h5 Kd2 h4 Kc2 h3 Kb2 e4 f7 c4 g6 a4 g5 h2 d7 e3 g7 e2 b5 e1N g6 Nf6 g8Q Rh7 f5 Qe7 g7 Na6 d8N+ Kb8 b7 Kc7 b8B+ Kb6 Qh8 Nd7 g8Q Nb4 f6 Rg7 Qf3 Na2 Nc3 Rg5 Qfh3 Qe6 Bg3 Nf3 Bg2 Nfe5 Nd1 Bb4 f8B Ba5 f7 Nc3 Nf3 Nb1 Ne3 Nf6 Re1 h1B Be7 a3+ Ka2 Bb7 f8N Be4 Qf7 Bh7 Nd4 c3+ Bd5 c2 N4c6 Rg4 Re2 Rf4 Bb2 c1R Bd4+ Rc5 Qhg7 Qg4 Nfe6 Bg2 Qh8 Qg8 Nc7 Bge4 Rc2 Bef5 Qhg7 Be6 Rc4 Nd2 Rc3 Nde4 Re1 Nf2 Ka1 a2 Nf1 Nh1 Bdf2 Bg4 Re4 Bd1 Ne3 Bb3 Rcc4 Neg4 Re6 Ne5 Qgg4 Rb8 Qd1 Rc8 Qe1 Ra8 Qc3 Rc8 Kb2 a1N Kb1 Nc2 Kb2 Nb4 Ka1 Nc2+ Kb1 Bg6 Na7+ Nc6 Ne8 Na3+ Ka1 Bh7 Nb7 Rb8 Ng7 Re8 Nd8 Rf8 Ne8 Nb1 Rd4 Bb4 Rc4 Ka5 b6 Ba2 b7 Ne5 b8N Rb5 Rc8 Rc5 Nac6+ Kb6 Nc7 Ba5
1b1RR3/NRQ1b3/4BB2/1N1n2Pb/1rB2r2/1Nn1qr1n/KNk3B1/4n1QB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 Kd2 c5 Kc3 h5 Kb2 a4 g4 c4 b6 f4 e6 Kd6 g6 a3+ Ka2 f3 g5 f2 g7 h4 b7 c3 e7 h3 e8B h2 b5 c2 e5+ Ke7 d6+ Ke6 d7 Kf5 e6 Ke4 d5 Qf6 d8R Bd7 d6 Qe7 b6 Ba4 d7 Rh4 Nf3 Bc6 Nbd2+ Ke3 Bf7 Qe8 e7 Ba4 Nd4 Ra6 Bb2 c1B Nb5 Nf6 g8B Rf4 B7c4 Nd5 Bf6 Nc6 b8N Na7 b7 Rb6 Bg2 f1R Nb3 R1f3 Na6 Bd2 Rg1 h1N b8N Nf2 Nb4 Nh3 Rb1 Bc3 Qf1 Be5 N8c6 Bb8 Nd3 Rb7 Nb2 Rb6 N5d4 Rb4 Be6 Nb5 Na7 Ke4 Rh1 Ke3 Qf2+ Ke4 Qg1 Nbc3+ Ka1 a2 Ndb5 Qg6 e8B Be7 B8f7 Qf5 Re8 Qe5 d8Q Qd4 Qc7 Qe3 Na5 Bd1 Nb3 Nf2 Rhh8 Nh3 Rd8 Be2 Rhe8 Bd1 Nd3 Be2 Kb2 a1N Bh5 Nc2 Bh1 Na4+ Ka2 Ne1 Nb2 Bd1 Bf1 Be2 Bfg2 Bd1 Bhf7 Be2 Nc4 Kd3 Bg8 Kc2 Nb2+ Ndc3+ Ka3 Bd1 Bc4 Nd5 Ka2 Rf2 Bf7 Bh5 Be6 R2f3 Rd1 Ndb6 R1d6 Nd5 Rb6 Bc5 Rb7 Bf8 Bg7 Be7 Bf6 Nac3+
N2n4/3B2QN/k2q1bnK/1RP3Rn/NB3r1N/1QR4b/Q1b3Q1/Nrr3b1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Ke3 d5 h4 Kd7 f4 Kc7 b4 Kb7 c4 e5 b6 a5 c6+ Ka6 c7 g4 b7 g3 h6 g2 h5 a4 h7 a3 b5+ Ka5 h6 e4 f6 a2 f7 Qd6 b6 Na6 b8R Bb7 c8N Nc7 f5 Qe7 Kf4 e3 c5 e2 f6 e1B Kg5 d4 Rh3 d3 Qc2 d2 Na3 d1B Nf3 g1N Qg2 Bg7 f8N Bb3 Nc2 Ra6 Nd7 Bc3 Ba3 Qd8 Nh4 Qe8 f7 Qe1 f8N Bb2 Bb5 Bbe5 Rc3 Ne2 Rd1 a1R Rd5 Ba8 b7 Bd4 Ncb6 Rb1 Na4 Qd1 Ndb6 Ne7 Bd7 Ng3 Na1 Bg1 Qa2 Rg8 h8Q Nh5 h7 Bf6+ Kh6 Bc2 Rg5 Ne6 Qg7 Qd6 h8Q Ng6 Nh7 Rf8 Qhg8 Nd8 Qgd5 Ra7 Bb4+ Ka6 Qg2 Rc1 Rc8 Rb1 b8Q Bb7 Rc7 Bc8 Na8 Rb7 Rc6+ Rb6 Rc7 Rc1 Rb7 Rf7 Ba5 Rbb1 Rb5 Rf8 Bb4 Rf7 Bc6 Bh3 Bd7 Qd2 Qbg3 Qd6 Q3f3 Be5 Qfd5 Rf4 Qdb3 Bf6
1B4Rb/2R4r/3RP1RR/1BqbN2Q/5rbb/2B2rN1/Q2n1B2/Kn1kNn2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 g5 Kc2 f5 h4 a5 b4 c5 Kb2 g4 e4 g3 h6 g2 d6+ Ke6 d5+ Kf7 b6 Kg6 b5 a4 d7 c4 h7 f4 h5+ Kg5 b7 Qe7 d8N Bd7 b6 Ra6 e6 Nc6 b8B Nd4 d6 Nc2 h6 Nf6 b7 Ng4 e5 Nh2 Qd5 Kg4 Nf3 g1R Nf7 Na3 Be3 Rg3 Nbd2 Nb1 Ne1 f3 Rg1 f2 Ne4 a3+ Ka2 c3 Bb5 f1B Bf2 Bc6 d7 c2 d8R Ra4 Rd6 Bh3 Qc4 Qg5 e7 Nf1 e8Q Be7 e6 Bd5 Ne5+ Kf4 Qg6 Rf3 Qh5 Bg4 Qb3 c1B Ng3 Bb2 Rg2 Qf5 Rg1 Bh4 Rg2 Nbd2 Rc1 Nb1 Rc7 Qc2 Rg1 Qc5 Rg2 Rc4 Qc2 Bd4 Qb2 Rb4+ Ka1 a2 Rg1 Rf8 h8B Rf7 h7 Bc3 Bf6 Rd4 h8R Rh7 Ba7 Rc4 b8R Ra4 Nh1 Ke4 Rbg8 Bd4 Bg3 Ke3 Bb8 Bc3 Rg6 Raf4 Rh6 Bd4 Rg8 Bc3 Nc2+ Kd2 Bf2 Kd1 Ne1 Bf5 R1g6 Bg4 Ng3 Bd4 Bh8 Bc3 Nc6 Bg7 Ne5 Bgf6 Qa3 Bg7 Kb2 a1N Qa2 Bgf6 Bg7 Nb3 Bh8 N3d2 Ka1 Be7 Nf7 Bf8 Bc3 Bg7 Ne5 Bh8
5QQ1/br1PQbr1/2N2n2/bkBB2R1/2nQ4/5Q2/b1N4n/BqrBN1RK w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 c5 d4 e5 g4 a5 Kg2 h5 b4 h4 g6 a4 g7 c4 f6 a3 f5 a2 f7 c3 g5 e4 g6 e3 d6 e2 f6 e1R b6 Kc6 d7 c2 b7 Ra6 d5+ Kb6 b5 Qc7 d8Q Ra5 d6 Nd7 b8N Kc5 b6 Rh6 b7 Nb6 Na3 Rb5 Qf3 Nc4 Bb2 c1N Nc6 Qb6 b8B Be6 Nc2 Nb3 Be2 Rh7 Bd1 Nbd2 Ba7 Nf1 d7 Rb4 Qe7+ Kb5 Rh2 h3+ Kh1 Bd5 Rg2 h2 Rg5 Qb8 Rb1 a1B Bc5 Rb3 Be5 Bd4 Rc1 Be3 Ba1 Bd2 Qe5 Ba5 Qd4 Bd6 f8Q Bf7 Qe8 Bdc7 Qee4 Bcb6 Qe7 Ba7 Rb1 Bd5 f7 Nf6 g8B Rg7 f8Q Bf7 Ne2 Rb4 Nf4 Qb6 Ng2 Rb3 Be2 Rc1 Nge1 Qb8 Bd1 Rb2 Kg2 h1B+ Kg1 Bd5 Bf7 Nh2 Be6 Bg2 Bg8 Bh3 Kh1 Bhe6 Bf7 Na3 Bg8 Ba2 Bf7 Nc4 Bg8 Rh7 g7 Bd5 Be6 Rb3 g8Q Rg7 Bh3 Bf7 Be6 Rb4 Bd5 Qe5 Rb3 Qf5 Re3 Qd3 Re4 Qb3 Reg4 Qb1 Rg2 Ka4 R2g4 Rb7 Rg1 Kb5
1q2q1Q1/R3Rq2/1B1QNn1K/P2r1bN1/2Qr1RB1/2bq4/R1n1Q1q1/1R3Nk1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 e5+ f6 c5 h4 b5 a4 e4 d6 g6 d7 b4 h6 b3 a6 c4 a5 c3 h5 b2 h7 c2 a7 e3 h6 e2 f5 e1Q Bh3 Bc5 Bg4 Na6 Nf3+ Ke4 d4 Rb8 a8R Bb6 d5 Qf1 d6 Qe7 d8Q Ba7 d7 Qc5 f7 Qd3 f8R Rb4 Re8+ Qe5 Ra2 Nf6 Re7 Bd4 Be3 c1Q Ra7 Bc3 Qe2 Rd4 Re1 Rg8 h8Q Nb4 h7 Nc2 Kh6 g5 Qc7 Qe6 Qd6 Rd8 Qg8 Rd5 Bc5+ Qce3 h8Q Rd4 Bb6 Rd5 Ne5 Qf7 Nd2+ Kf4 Rg1 b1Q Nef3+ Qe5 Rh1 Kg3 Qhh7 Qbb5 Rb1 Qf4 Qhg6 Qc6 Qc5 Qb8 Qc4 Qa4 Bh5 g4 Ng5 Rf8 d8N Qae8 Nde6 Bd7 Qd1 Kg2 Nf1 g3 Bg4 Rd4 Qe2+ Kg1 Qh5 g2 Qh3 Qec8 Qg3 Rd8 Qge5 Qc6 Qd6 Bc8 Qc7 Rd5 Qd6 Nh5 f6 Qce8 Ng7 Bf5 N7e6 Qb5 Nh7 Qd7 Nhg5 Qfe8 f7 Nf6 f8R Qf7 Rc8 Qde8 Rc5 Kh1 Rcb5 g1Q R5b4 Qg2 Qc8 Rf4 Rd4 Kg1 Qc4 Rf3 Rf4+ Re3 Nc5 Re4 Nce6+ Red4
1n3Q1r/1B1BR1N1/2rQ1q2/k2q4/1NQRN3/Kq3QNn/6nP/N1bbB1q1 w - - 0 1 illegal: No possible last move
nN1R3r/3nBNR1/r2Q3b/kb6/b3RBrN/1Q2N3/1q1K2Pq/1bN1BB2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 e4 d5 b4 Kd7 c4 Kc7 b6+ Kb7 b5 a5 e6 f5 g6 h5 e7 a4 e8R d4 e5 h4 e6 h3 e7 a3 g7 h2 Nc3 a2 Kd2 f4 Nce2 f3 Ba3 d3 Nc1 f2 Nf3 Bf5 c6+ Kc8 b7+ Kc7 c5 Bg6 Nh4 Nh6 g8Q Nd7 b8B+ Kc8 b6 Nf6 c7 Kb7 c8N Ka6 b7 Qd6 c6 Ra7 c7 Nhg4 Nb6 Kb5 c8N Bh7 Nd5 Ra6 Ncb6 Bh6+ Ne3 Ne5 Rd8 Ka5 e8N Ned7 Qgb3 Nd5 Bc5 Qe5 Nd6 Nc7 Nf7 Na8 Be7 Qf6 Rg1 h1Q Bf4 Qh2 b8B Qd4 Rb1 a1R Bbe5 Qb4+ Bc3 Ra4 Rh1 Qg3 Rh3 Qh2 Rg3 Bf5 Rg7 Bh7 Qf3 Bg6 Qg3 Bf5 Kd1 d2 Qg6 Bd3 Qd6 Bb5 Kc2 d1B+ Kd2 Bd3 Ra1 Bb1 Ra2 Nf8 Nd7 Bdc2 Nb8 Nd7 Bc4 f1B Bd3 Be2 Ra3 Bf3 Bf1 Bc6 Ra1 Bb5 Nd3 Ba2 Re1 Bab1 Nc1 Be4 Kd1 Bec6 Bd2 Qc3 Re2 Rb4 Be1 Qa1 Kd2 Re4 Be5 Rg4 Bf4 Qe5 Nef5 Ba4 Re4 Bcb5 Ne3 Qb2+
2k1n2R/2BRBn1q/KrQb3R/2RN1QQ1/2b3B1/3Nr1Q1/Q3P3/b4qrb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 d4 c5 Kd2 g5 Kc3 f5 Kc4 g4 b6 g3 Kb5 g2 h6 a4 h5 f4 h7 c4 e6+ Kd6 b7 Kc7 e7 f3 e8Q c3 h6 a3 Qb3 c2 Nc3 a2 Ba3 c1B Nh3 g1Q Nf4 f2 Bh3 f1B Bg4 Qg2 Nd3 Qf6 Qc6+ Kd8 d6 Bd2 d5 Be3 d7 Bec5 Rc1 a1R Qa2 Na6 b8Q Ba7 Qg3 Qff3 Ka5 Qf5 b5 Bd6 b6 Rb1 b7 Nc7 b8B Ba6 Rh2 Ne8 Bc7+ Ke7 d8R Bc4 Rh1 Rb5+ Ka6 Rc8 Rh3 Bd4 Bc5 Qg1 Bb4 Bg2 Rd7+ Kf8 Ba3 Bh1 Bc5 Qgf1 Rc2 Be7 d6 Rcb8 Nd5 Ba1 Bb4 Kf7 Rh4 Ke6 Rc1 Bb3 Rc5 Bc4 Bc3 Bf8 Bf6 R8b7 Be7 Rb1+ Ka5 R7b5+ Ka6 R1b3 N3b4 Re3 Nd3 Ngf6 Rh3 Rg8 h8R Ne4 h7 Ng5 Rh6+ Rg6 Rg8 Nf7 h8Q Bfg7 Qh7 Bge5 Rd8 Bf4 d7+ Bd6 Rg7 Nf6 Rh8 Ne8 Bf3 Q5h3 d8Q Qf5 Bf8 Qh5 Qdg5 Qhh3 Be7 Qf5 Qb6 Kd7 Qc6+ Kc8 Bg4 Rge6 Qg8 Qh7 Q3f4 Rg3 Qf8 Rg1 Qg3 Ne5 Qff5 Nf7 Bed8 Ne5 Rd7 Nf7 Bf6 Re3 Be7 Rb6+
4N1Rn/1R1B1Q2/3QNRBb/N7/Krb1n1rR/n1k1q3/2PbqB2/2b3NN w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb3 Ke5 h4 g5 f4+ Ke4 h6 a5 f6 d5 c6 e5 h7 g4 h5 g3 c7 g2 f7 Qg5 f5 d4 f6 Bb4 f8N d3 b6 Kd4 f7 d2 b7 e4 h6 e3 Rh4+ Qf4 Nc3 e2 Ne4 e1N Bd3 Nf3 Ng3 Ra6 Nh1 Nc6 b8N Na7 Rb1 Nb5 Nbd7 Ne7 Nf6 Bc3 Ne8 Rg8 h8R Rg4 h7 Ng6 Rg8 Ng5 h8R Rb6 R8h6 Nh8 Rf6 Ba6 Bg6 Ne4 c8B Rb8 Bd7 a4+ Ka2 a3 Kb3 a2 Ka4 Ba5 b4 Na3 b5 Rb7 Rb3 a1B b6 Bb2 Ne6+ Kc4 f8Q Qg5 Nh3 g1B Qf7 Be3 Ng1 Qc5 Rb5 Bh6 Rb3 Rb8 b7 Qb6 Qf3 d1Q Be3 Bac3 Qg3 Qe2 Qd6 Bd2 Bf2 Bbc1 Rb1 Qbe3 Rb5 Rc8 b8N Kc3 Nc6 Rb8 Na5 Rb6 Rb1 Bc4 Rb4 Ra6 Rb8 Rb6 Rb7 Rb4+
rQ1bR2R/3qQ3/b3BBk1/B7/N1B3nn/1rnN2nN/rBPR2K1/N2q4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 b4 d5 f4 g5 Kf2 a5 h6 e5 h5 d4 b6 d3 f6 d2 c6 e4 c7 e3+ Kg2 g4 h7 e2 b5 e1R b7 g3 h6 a4 b6 a3 f5 a2 Bc4+ Re6 Nc3 Qd4 Bb2 Qd8 Qe2 d1N Na4 Na6 b8N Nc3 b7 Nd1 Nc6 Bd7 c8B Nc3 b8Q Qb6 Nb4 Qa5 Rd1 a1Q Nd3 Qc5 Nh3 Qe7 Rhe1 Nc5 Rd2 Bb5 Qee5 Qd7 Re3 Ke8 f7+ Ke7 Qec7 Kf6 Qd8+ Be7 f8B Kf7 f6 Kg6 f7 Qd1 Bg7 Rd6 Bf6 N5e4 Qf8 Bd8 Qe7 Rda6 f8N+ Kh5 Ne6 Kg6 Ree2 R6a7 Nec5 Ba6 Nb3 Rb7 Bg5 Ngf6 Na1 Ng4 Bf6 Rb3 Re1 Rf8 h8B Rg8 h7 Rg7 Kh1 g2+ Kg1 Rg8 Bhg7 Ng3 h8R Rf8 Bh6 Rf7 Be3 Rh7 Bb6 Rh5 Ba5 Rhb5 Bd5 Ra3 Bb3 Ra2 Bd5 Rb3 Bc4 Ne3 Kh2 g1N Ree2 Ng4+ Kg2 Nf3 Re5 Qd4 B8e6 Qd6 Reh5 Qd4 Re8 Qd7 Rhh8 Nh4+
QR2Q3/QRBnq1N1/2kbQbK1/2n3R1/r2qN1rR/1B1N2Pb/1q2Q3/5q2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 a5 Kf4 c5 d4 h5 b4 c4 f6 e5+ Kf5 h4 f4 a4 f7 a3 g3 c3 g6 c2 d6 h3 b6 e4 b5 a2 d5 h2 g7 e3 b7 e2 b6 e1Q Bc4 Qde7 Nf3 Q7e5+ Kg6 Q1c3 f5 Rh4 f6 Qed4 Nbd2 Qdd3+ Ne4 Rh5 Bf4 c1Q Ne5+ Kd8 d7 Qdc2 Qe2 Ra6 Bb3 Q2d3 Rb1 Qdd1 Nd3 Ba3 f8N a1B f7 Ra4 Bc7+ Ke7 d8R Rh8 Ne6 Nd7 b8R Qce1 b7 Ngf6 g8Q Bc5 Ng7 Bd6 Rb2 Nc5 Re8+ Kd7 f8Q Qc4 Re5 Rh4 Rg5 Qdc2 Rb1 Qb2 Qff7+ Be7 d6 Qcd4 Qe6+ Kc6 d7+ Bd6 d8Q Nfd7 Qge8 Rf4 Rf1 Rh4 Rf4 h1Q Rfg4 Qhf1 Qde7 Rh8 Rh4 Rg8 Ra8 Qef2 b8Q Qf8 Q7d8 Qe7 Qa7 Rf8 Rb8 Rf4 Bc2 Rg4 Bd1 Qa3 R1b7 Bc3 Bb3 Qb2 Q8g8 Qb4 Qde8 Bf6 Qc4 Q4c3 Qge6 Qb4 Qca6+ Qb6 Qa5 Qb4 Qa8 Q4d4 Q5a7 Rf4 Q8g8 Nb6 Qc4 Bh3 Qe8+ Nd7 Qe6 Rg4
4B3/QKNR1Rq1/1n1QNb2/1q1n4/r1nBbRB1/1B2r1P1/3Qr1nk/4QQ2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Ke3 c5 Ke4 a5 d4 h5 b4 h4 b6 c4 d6+ Ke6 g6 c3 g7 a4 b7 h3 b5 f6 d5+ Kd7 b6 a3 g3 a2 e6+ Ke8 e7 Kf7 d7 Kg6 e8Q+ Kh7 d6 f5+ Kd5 h2 e4 c2 e5 f4 e6 Kh6 e7 Kg5 Be2 Rh7 Be3 c1N Qf1 Ra4 Bg4 Nd3 Nc3 Ne1 Bd4 f3 Nb5 f2 Nc7 Ng2 Ne2 Nf6+ Kc5 Rh4 g8B Bg7 Bb3 Nd5 Nf4 Bf6 Rg1 h1R Nfe6+ Kh6 Rc1 a1Q Rc4 R1h2 Kb5 Rh5 Rh1 Re5 Rb4 Nc6 b8Q Re3 b7 Nb6 Qa7 Ne5 b8Q Nec4 Kc6 Ba6 Rg1 Qc8 d8R Bb7+ Kc5 Ba8 d7 Qa6 Rh1 Be4 Rg1 Bc2 Kc6 Qb5+ Kb7 Bh7 Na6 Bg6 Qd6 Bf5 Nac7 Bc2 Qe1 f1N Qf7 Bf5 Rf8 Bb1 d8Q Be4+ Qd5 Qb2 e8B Qa1 Qd6 Qc3 Qg8 Qb2 Rf7 Qc3 Bf5 Kh5 Qgf8 Qb2 Bh7+ Kg4 Bf5+ Kf3 Rd7 Nh4 Rh1 Rhe2 Bg4+ Kg2 Rh2+ Kg1 Rf2 Ng2 Rf4 Kh2 Rf3 Bh8 Rff7 Qc3 Qf4 Bf6 Q8d6 Rf3 Qfd2 Nfe3 Qf4 Qa1 Qc6 Ned5 Qcd6 Rd3 Qff1 Rde3 Bb2 Ne5 Rd4 Nec4 Bc3 Bh7 Rf4 Be4 Bd4 Qb2 Bc5 Qe5 Bd4 Qg5 Bh3 Qg6 Bg4 Qg7
N4R1n/RR2n3/1nqBBr2/1k4BQ/2q2r1Q/2b3Pb/2Bn3N/q2RRNK1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 a5 b4 e5 d4 c5 g6 h5 b6 a4 d6 Kc6 b5+ Kd5 b7 e4 f6 a3 f7 c4 f5 a2 g7 h4 d7 h3 f6 h2 g3 c3 b6 Kc6 d5+ Kc5 d6 c2 Nf3 Qe8 d8Q Rh5 d7 Ne7 g8B Rh4 Bg5 c1Q Bd3 Ra7 Nbd2 Bg7 f8B Qc4 f7 Rf4 Re1 h1N+ Kg1 e3 Nf1 e2 Bc2 Ra6 N3h2 Bc3 Qd5+ Kb4 Qf3 Nf2 Qh5 Ng4 Rad1 Nc6 b8R a1Q b7 Na5 Ra8 Kb5 Ra7 Ne5 b8R+ Rb6 Rbb7 N5g6 Rd6 Nh8 Rdd1 Nec6 Qf6 Ne7 d8N Bh3 Ne6 Qec6 Qfh6 Q4e4 Qh4 Nc4 Q6h5 Qed5 Rc7 Ra6 Rcb7+ Nb6 Nc7+ Ka5 Rc1 Qdc4 Na8 Kb5 Red1 Nc8 Bb4 e1N f8R Ne7 Be6 Nf3+ Kf2 Ra5 Bd6 Nd2+ Kg1 Rf6 Re1 Ra4 Red1 Qg4 Re1 Raf4 Rcd1 Qe2 Qg6 Qee4 Qgh5 Qec4
2Q1b2N/Q1N1b2n/N3B3/k1Bn4/2r2Q1B/1PnB2n1/1rb1qR2/1NR1qNK1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 f4 c5 Kf2 Kc7 d4 Kb6 g6 e5 d6 a5 g5 h5 d7 e4 g7 a4 d5 c4 b3 h4 f6 a3 f7 h3 g6 h2 f5 a2 f6 c3 d6 c2 Qd4+ Ka5 b6 Ne7 g8B Nf5 g7 Qe8 d8B Ng3 d7 Rh7 Ba3 c1N Nf3 Nh5 Bd3 Qe5 Bc5 Be7 f8N Ng3 f7 Nce2 Rc1 h1B Nh2 Rh4 Ng6 Nc3 f8Q e3+ Kg1 e2 Nh8 e1Q+ Nf1 Bc6 Qff4 Q5e2 Be6 Be4 g8N Bcb7 Qdf2 Bbc6 Nf6 Bf5 Nd5 Ba4 Qh6 Rc4 Nc7 Ra6 b7 Rd6 Bc2 Rd2 Bd3 Rb2 Qhf4 Bg6 Q2e3 Bc6 Rc2 Be8 Rc1 Be4 Qd4 Bf8 Bh4 Be7 d8Q Nd7 b8N Nf8 Qc8 Nh7 Nba6 B4g6 Na3 Bf5 Rab1 a1N Rc2 Bfg6 Rbc1 Bf5 Rd2 Nc2 Nb1 Ne3 Qdd7 Ned5 Rdc2 Qe3+ Rf2 Q1e2 Qb8 Qe1 Qa7 Q3e2 Qc8 Qf3 Be2 Bc2 Bd3 Qfe2
1Q4Qq/1BKb2B1/2RRRNN1/1n4b1/1r2Qr1q/Pk3qN1/3q3r/3NnQQ1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 c5 d4 b5 f4 g5 d6 c4 h6 g4 h5 g3 f6 g2 a6 e6 a7 c3 a3+ Ka5 f5 b4 d5 c2 f7 Ka4 d7 b3 d6 b2 f6 Be7 f8Q Qe8 d8Q Kb3 d7 Qg6 h7 Nh6 f7 Na6 Nc3 b1R Bb2 Rg8 h8Q Rb8 a8Q Nc5 Nge2 g1Q Qe4 Q6g2 Ng3 Rg4 Qhg8 Bf6+ Kd6 e5 Ba6 Bg5 Bb7 Qf3 Kc7 Nf5 h6 Rf4 h7 Nd4 h8N Qh2 Qg1 c1Q Nd1 Qcd2 Ng6 Qh8 Rh6 Nd3 Qf6 Ra8 d8R Ne1 Rd6 Bd7 Qb8 Ra4 Bc3 Rb2 Rc1 Rb4 Re6 Ra2 f8N Rc2 Nh7 Nb5+ Kb6 Rb2 Qff8 Rc2 Nf6 Ra2 Bd4 Rb2 Rcc6 Rc2 Qf5 e4 Rcd6 e3 Qe4 e2 Qff7 Nc3+ Kc7 Rb2 Ne8 Rc2 Bg7 Rb2 Qff5 Rc2 Nf6 Nb5+ Kb6 Rb2 Qh3 Ra2 Qhf1 Qg2 Rh3 Nc2 Nf5+ Qd3 Qa8 e1Q Qab8 Qeh4 Rc6 Qc3 Rd3 Qf3 Ng3 Ne1 Rd4 Rh2 Rdd6 Nd4+ Kc7 Qcd3 Qgd8 Qd2 Qg8 Nb5+
2NkqnrB/1b3b1K/Rb2R1Q1/Qn3Q1B/2B3PN/2r2bq1/1q3QQ1/RR6 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 Ke3 c5 Ke4 a5 b4 c4 g4 c3 d4 h4 e6 c2 Kf5 h3 e4 a4 b6 a3 e5 a2 d6 h2 d5 f6 Kg6 f5 b5 f4 d7+ Ke7 b7 f3 b6 f2 Na3 Ra4 Qd2 Nf6 Nb5 Ng8 Bb2 c1Q Bc4 f1B Nd6 Nf6 Qg2 Ra7 Nf3 Qc3 Nh4 Na6 b8R Ne4 b7 Nc7 Ra8 Qa3 b8Q Nf6 Qb6 Nb5 Qbf2 Ra4 Ra6 Be2 Rhb1 Ne8 Bc3 Rg8+ Kh7 h1B g6 Qb4 g7 Qb6 Bd4 Bb7 Nc8+ Kd8 e7+ Kc7 d8R Ra3 e6 Qa4 Rd6 Bf3 Bc3 Qe3 Rdb6 Ned6 e8B Nf7 e7 Ne5 Re6 Nd7 Bh5 Rb3 e8Q Bc5 Qf8 Bb6 Qf4+ Kd8 d6 Qe5 Qf5 Qg3 Be5 Rc3 Bd4 Rf8 g8Q Re8 Qgg6 Rg8 Re7 Bfd5 Bh8 Bf7 Re6 Bf3 Rg1 Bb7 Rab1 a1Q Rge1 Qb2 Rec1 Qd1 Rba1 Qde2 Rcb1 Nc5 d7 Bf3 Rd6 Qe8 Re6 Bb7 Qgg1 Bhd5 Qgg2 Bf3 R6a4 Rc2 Qe1 Kc7 Ra6 Rc1 Qa5 Rc3 d8Q+ Kb8 Qd4 Kc7 Qgg1 Nd7 Qdf2 Kd8 Qgg2 Nf8+
1bBBR1K1/1Q4Q1/2rr2Rb/1q3BrN/R2P3k/2Bbnbn1/q2B4/Q1Q2N2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 Ke5 h5 b4 c4 d4 e6 f4 h4 g4 h3 b6 h2 b5 a4 g6+ Kg7 b7 Kh6 d6 a3 f6 a2 f7 c3 d7 c2 g5+ Kg7 b6 Rh6 f5 Ne7 f6+ Kh8 g7+ Kh7 g8R Na6 b8Q Bg7 f8B Kg6 b7 Qe8 d8B Rh5 Qa7 Qd7 b8Q Rh3 Bd3+ Nf5 Ne2 Kh5 g6 Nb4 Nd2 Nd5 Re1 h1B Bb4 Nde3 Qbb7 Ng3 Bf5 Bh6 f7 Bf3 Kf6 e5 f8Q e4 g7 Qb5 Bc3 Kh4 Nf4 Bd7 Qa4 Ra5 Nf1 Be6 Re2 Bc4 Nh5 Bd3 B1d2 c1R Re1 Rc2 Qc1 Ra6+ Ke7 Rd6 Qf7 Rh1 Re8 Rg1 g8B Rg2 Qg7 Rg1 Bge6 Rg2 Bb4 Rcc6 Bbc3 Rg1 Bc8 Rg2 Rb1 a1Q Rb4 Qa2 Qaa8 Ng4 Qaa6 e3 Ra4 e2 Qaa8 Ne3 Kf8+ Bg5 Rd1 e1B Qaa7 Bf2 Re1 Bg1 Re6 Bh2 Rg6 Nd1 Re8 Ne3 Nf6 Bh6 Qaa8 Ne2 Nh5+ Rg5 Qa5 Ng3 Qaa6 Qab2 Kg8 Qa2+ Bfe6 Qc2 Kh8 Ne4 Bf5 Rd7 Rb4 Bb8 Qaa1 Ng3 Kg8 Rdd6 Ra4 Qa2+
2Q1b2N/Bq5q/4r2b/N2BQnP1/1bBNQ2R/1nBnK2R/1N4Bn/2r3k1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 h5 e4 f5 b4 c5 d6 Ke6 b6 a4 g6 f4 g5 f3 b5 c4 g7 a3 d5+ Kf7 e6+ Kg6 e5 Kf5 e7 Kg4 e8B c3 b7 a2 d7 c2 d6 h4 e6 h3 e7 h2 b6 Rh7 Qd3 Rh3 Nc3 Rh4 Ke3 Kg3 Bb2 c1N Qe4 f2 Na4 Rh8 Bf7 Qc7 d8Q Qc6 e8Q Qd5 d7 Bb4 Bg2 Na6 b8N Nc5 b7 Nh6 g8B N5d3 Bc3 Nb3 Nc6 Ra6 Na5 Re6 Nf3 Qb5 Rac1 a1B Nb2 Qa6 Nd4 f1N+ Ke2 Qc6 b8B+ Qc7 Qee7 Nf5 Ba7 Qb7 Qdf8 Rhh6 d8N Bd7 Re1 Rc6 Bc4 Rhe6 Nf7 Be8 Nh8 Rc8 Qd7 Rc5 Qfg7 Rcc6 Qc8 Rc7 Kd1 Kf2 Re3 Rcc6 Rh3 Rc7 Rg1 h1Q Qge5 Nh2 Kc2 Rcc6 Re1 Rc5 Rh4 Qh7 Re3 Kg1 Reh3 Rcc6 Kd1 Rc7 Ke2 Rcc6 Be1 Rc5 Bd5 Rc1 Bc3 Qb7 Na4 Bb2 Bc4 B2a3 Nb2 Bf8 Bf7 Bh6 Bg8 Bb4 Bf7 Rd6 Bfd5 Re6 Rg4 Nf1 Re3 Bhf8 Rf4 Qh6 Rh4 Qhh7 Reh3 Bh6 Kf3 Nh2+ Ke2 Ng7 Ke3 Nf5+
R1b3rB/Qr2NK1b/1R2R2Q/b2BnP1q/3Rq3/n3R2N/3B2k1/B1r2Nb1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f6 Kf7 Ke2 Kg6 Ke3 Kf5 Kd4 Kf4 g4 h5 b4 a5 g6 c6 f7 h4 b6 a4 b5 a3 g7 h3 d6 a2 d7 e6 g5 h2 g6 Ra5 b7 Ne7 g8R Ra3 g7 Ra5 b6 Rhh5 Qa4 Nd5 Nh3+ Kf3 Bg2+ Kg4 f4 Kg3 Re1 Qe8 d8B h1B Bf6 Na6 b8R Rg5 b7 Bb4 f8Q Rb5 d3 Qf7 Nd2 e5+ Kc4 e4 d4 Ne7+ d5 Qe8 d6 c5 d7 e3 d8R Nc7 Rd4 e2 Qa5 Qh5 Nf1+ Kh4 Bc6 Be4 Qa3 Bh7 Bf3 Ncd5 Bd2 Nc7 Ra8 Bc3 Qa7 Ba5 Be4 Rb6 f5 Nb5 Be5 Rg1 Rab1 a1Q Rb2 Qb1 Qf6+ Kg4 Re8 Rg2 g8N Rg1 b8B Rb7 Rd6 Rg3 Bc6 Qe4+ Bd4 Kf3 Qh6 Rg7 Red8 Ng6 Ne7 Kg2 Rbb1 Nc7 Rb6 Nb5 Rf6 Rg8 Be5 Nc7 Rfd6 Nb5 Bh8 Na3+ Kb3 Rd7 Ba1 Rc7 Rf6 Rb7 Rd4 c4+ Ka4 c3 Kb3 Nb5 Kc4 c2 Kc5 Na3 Kd6 c1R Bd5 Rcc7 Rc1 e1B Rc3 Bf2 Re3 Ne5 Rb1 Rc1 Rb6 Rd7+ Ke6 Ng6+ Kf7 Bg1 Rfc6 Rb7 Re6 Ne5+
1r1R4/3n1NRQ/1k1n2B1/b1q1P3/2qQ1NQ1/1bNb1q1K/5r1Q/1qBR1QN1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 d4 Kc7 e4 g5 h4 a5 b4 f5 h6 a4 d6+ Kb6 e6 a3 d5 c4 h5 g4 d7 c3 e7 a2 e8R c2 h7 Ne7 h6 Qc7+ d6 Qb7 d8Q+ Qc7 Bd3 Nd5 Qf1 Ba6 Nc3 Rg8 h8Q Be7 h7 Nf6 e5 Bb7 d7 f4+ Kh2 f3 Bg6 g3+ Kh3 g2 Qg7 f2 h8N Ne4 Nf7 Ka7 Qh7 Bd5 b6+ Kb7 b5 Nd6 Rb1 a1Q Rb4 Ra7 Rg4 Ra2 Rg5 Qc4 Rg3 Ka8 b7+ Ka7 b6+ Ka6 Qc8 Qb1 d8N Nd7 Ne6 Bd8 b8Q+ Ka5 b7 Kb6 Nf4 Qcb3 Nce2 Qf3 Nc3 Bb3 Qa8 Rb2 Qa1 Bc7 Rd8 Ra2 Qd3 f1B Qf5 Bd3 b8Q+ Kc5 Qa6 Ba5 Qg4 Rf8 Qba8 Rb2 Qc4+ Kb6 Qae4 Rg8 Qe2 Ra2 Qb2 Rf8 Qf1 Re8 Nge2 g1Q Qd5 Qc5 Qd4 Rh8 Ng1 Rf8 Rh2 Re8 Rd2 Rg8 Rd1 Re8 Be3 c1Q Qh2 Rf2 Bd2 Qcc2 Bc1 Qca2 Qfg2 Qa4 Qf1 Qc4 Bh5 Re7 Qe6 Nb8 Qef5 Rb7 Qd7 Qe4 Rg7 Qed5 Qdf5 Nd7 Qg4 Rb8 Bg6 Qf3+
1rk1b1R1/B3q2r/1Q4Bn/NNbPN2Q/br1BRrq1/3Q3n/1QQ5/2BK4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 e5 d4 a5 g6 h5 f6 e4 f5 c4 f7 e3 g5 c3 g7 h4 f6 e2 g6 c2 d6 a4 d5 h3 b6 a3 b7 h2 b5 a2 b6 Ra4 Qd3 Ra3 Nf3 Rh7 Nc3 Na6 b8Q Rh3 b7 Qb6 Ne5+ Kd8 d7 Rh5 Nb5 Qc6 Rg1 Bd6 f8B h1B f7 Nh6 g8Q Bc5 g7 Be4 Qh7 Rb3 g8Q Rb4 Qg2 Nc7 Bg7 Ne6 f8B Ng5 Qg4 Rh4 Qh5 Bg6 Rg4 Qd6 Re4 Qe7 Bh3 Be8 Bf5 Nh3 Bg6 Rf4 Qd6 Bg1 b8Q Bc5 Rb1 a1Q Qe6 Qa7 Qeb6+ Qc7 Ra1 Qe6 Ra8 Qg4 Kd2 e1R Bh8 Bf2 Bc5 Rh1 Be3 Bh4 Bd4 Be7 Bg1 Bc5 Bg7 Ke7 d8N Bcd7 Nb7 Qd6 Na5 Qf6 Ba3 c1R Be3 Rcb1 Bc1 Qd6 Bg1 Qf5 Kd1 Qg4+ Nf3+ Qde6 Qbe5 Bc6 Qb2 Kd7 Bd4+ Qe7 Qdc2 Bf7 Rg8 Be8 Qd3 Kc8 Qdc2 Qg3 Ne5 Rh2 Nc7 Ba4 Nb5 Qg4+ Re2 Qee6 Qba7 Qf7 Bc3 Rf3 Qf5+ Qe6 Qbb3 Nf7 Qh4 Be3 Nd4 Rb8 Qfd3 Nhg5 Nb5 Qe7 Qh6 Bb6 Re4 Rhh3 Qa3 Rb4 Qb2 Rh4 Bc5 Nh3 B3d4 Rh5 Qg5 Rh7 Qh5 Nh6 Re1 Bc7 Re4 Bd6 Bb6+ Bc5 Qa6+ Qb7 Ba7 Rf6+ Qe2 Rf3 Qb6 Qe7 Qd3 Rf4+
R3KB1B/nRr4n/2B2Q2/N1nPqn2/rr1N2bN/b2QN3/1R3q2/k2B2B1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 g6 a3 g5 c4 b6 h4 f6 h3 f5 c3 b7 a2 g7 c2 g6 Kb3 f7 h2 f6 Nh6 g8R Qe7 d8B Ra5+ Bb5 Bd7 g7 Ra8 Bc6 Rh7 Nd2+ Kb4 Ngf3 Rh8 Nh4 Bc8 Rb1 a1Q Nf1 Kb3 Ne3 Ka2 b4 Qe8 b5 Be7 f8B Qb2 f7 Bc5 Kf6 e5 b6 e4 Qd3 Ra6 Bde7 Bb4 Bc5 Ba3 Bd2 c1N Bc3 Qg2 Rb2+ Ka1 d5 Bg4 Rg1 Qc8 Ke7 Qf5 Ke8 Rh7 Rh8 h1R g8B Rg7 Bh7 Qgf2 Bg6 Qg5 Bh5 Nf5 Rg8 Rh7 Bh8 Ra4 Rg2 Nb3 Bcd4 Nd7 b8N Ndc5 b7 Na5 Rg7 Rb1 Rg1 Bh3 Bd1 Qh5 R1g6 Bg4 Rd6 Qg5 Rd8 Qf6 Bd7 Qd6 Nc6 Qdf4 Ra8 Qe5+ Ne7 Nc6 b8N Na7 Nc6 Ng3 Na5 Nf5 Nf1 e3 Bc6 e2 Ne3 Ne6 Bb6 e1N Bd4 Nf3 Bb6 Nh6 N7f5 Nfg5 Nd4 Nc5+ Be7 Qef4 f8Q Nf5 Qf6 Q4h2 Bf8 Qe5+ Re7 Rf7 Qf1 Nh7 Qd3 Qef4 Rb7 Rc7 Rd2 Rbb4 Rb2 Rd7 Bc7 Qg5 Bh2 Rc7 Bg1 Qgf4 Qg5 Q4h2 Qf6 Qe5+
KnR5/1Bb1q1kb/1R2Rr1q/1P2Qr1B/1BnBN3/N7/BQ1Q3q/Q1nq4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 a5 f4 h5 d4 c5 g4 a4 b4 c4 g6+ Kg7 b6 h4 b5 a3 g5 h3 b7 h2 d6 c3 Kd5 e4 d7 e3 Nh3 e2 Be3 e1Q Bg2 a2 Nf2 c2 Ne4 c1Q Na3 Bb4 f6+ Kf8 f5 Ra7 f7 Ra8 g7+ Ke7 f8R Qdc7 g6 Qh4 Re1 Na6 b8Q Nh6 g8B h1N g7 Qhh2 Bf7 Qb2 g8B Bd2 Bh5 Qcf4 Kc6 Qb3 d5 Ng3 Bd4 Bb4 Rc1 a1Q Rf6 Nf7 d6+ Kf8 d8Q+ Kg7 d7 Be7 Qe5 Qh6 Qd2 Ne2 Q8a5 Qa4 d8Q Qd1 Qb2 Nd6 Ba2 Nb8+ Kb6 Bb7 Rc8 Ra6+ Kc7 Nc4 Rb6+ Bf6 Qad2 Bd5 Bgf3 Bf7 Kb7 Rf8 Qde8 Bg8 Qg6+ Kh8 Qg1 Bh7 Qh1 Bg7 f6 Nc1 f7 Qb1 Qf1 Qbc2 Bh1 Qa4 Qff6 Qb4 Qa1 Qc5 Qff2 Bf6 Qdb2 Kg7 Qfd2 Ra4 Re3 Rb4 Ka8 Qe7 Nd6 Rb3 Bb7 Rc3 Re1 Rf3 Ne4 Rf5 Re2 Rd8 Re3 Rd6 f8B+ Kh8 Qf4 Be5 Qg3 Rdf6 Qg5 Qe8 Bb4 Bc7 Qg3 Qef8 Qe5 Kg7 Ng3 Bg8 Qc5 Ne2 Ree6 Bh7 Qe5 Qe7 Ne4 Nc1
1B1k1NR1/3n3B/Q2K2Pr/qRN1Q1q1/n1Nr2b1/Rbr5/1b6/Qb2R1QQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Kg3 h5 Kf4 c5 d4 a5 e4 a4 b4 h4 g4 h3 b6 c4 e6 c3 Ke5 f4 d6 c2 b5 f3 e7 a3 b7 h2 b6 f2 g6 a2 d5 Qd7 g5 Qa4 g7 Bd7 Ne2 Ra7 Bf4 c1R Nd2 Ra8 Ng3 Rc5 Nc4 Rc8 Bd3 Ra6 Qg1 Bc6 d7+ Kf7 d8N+ Ke8 d6 f1B Ne6 Rh4 d7+ Kf7 d8Q Nh6 e8Q+ Kg8 Qdd4 Bh3 Qg6 Ba3 Nf8 Bb2 Kd6 Bg4 e5 Be4 e6 Qa5 e7 Nd7 b8Q Nc5 e8Q Na4 Qee5 Rc5 Qh7+ Kf7 Qa8 Ng8 Re1 Bg6 Ne4 a1Q Qa7+ Rc7 Nc5 Qc1 Qh8 Nf6 g8R B6f5 Qh6 Be6 Bh7 Ke8 g6 Kd8 Re3 Nd7 Ra3 Qe3 Bg3 Qg5 Qdd1 Bef5 Qa1 Bb1 Qb7 Ra7 Qa6 Rh5 b7 Rc8 Qhg7 Rh6 b8R Rb7 Qh8 Rb4 Rb5 Rc7 Qg2 Rc8 Rg1 h1B Re1 Rc7 Qg1 Bd5 Qe4 Bde6 Qhe5 Bd5 Qeh1 Bde6 Nb6 Bb3 Bh2 Re4 Nc4 Rd4+ Qed5 Bc1 Nd2 Rh3 Nd3 Ra7 Kc6 Rh5 Bb8 Rc7+ Kd6 Rcc4 Nc5 Rc3 Nc4 Rhh3 Ne3 Bb2 Nc4 Rf4 Qe6 Rh6 Qe5 Rd4+
bqr1BN1q/8/N2N1BP1/b1Q1q1nB/4Q1qr/BN5k/b2R1K2/1RN2R1n w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 e5 d4 a5 g6 h5 f6 e4 f5 c4 f7 e3 g5 c3 g7 h4 f6 e2 g6 c2 d6 Ke6 b6 Kf5 b7 Kg4 b5 a4 d5 a3 d7 a2 b6 h3 d6 h2 Nd2 Rh7 Ba3 c1Q Kf2 Qc4 Qa4 Kh4 Nb3 Ne7 g8B Qb4 Rb1 Bh6 f8N a1Q f7 Nbc6 b8B Bg7 b7 Qg4 Qe4 Qe8 d8R Ne5 d7 Nf3 Be5 Nf5 b8N Ng3 Bf6+ Ng5 Na6 Qee5 Bg2 Qb8 Bf3 e1Q+ Kg2 Rh6 Ne2 Rh7 Rf1 h1B+ Kg1 Qac3 Nec1 Kh3 Bd1 Rh4 Be2 Qd1 Kf2 Qe6 Bh5 Qee5 Ne6 Qg4 f8Q Bb7 Qc5 Bd5 Bf7 Bc4 Nf8 Bg2 Nd4 Ba2 Be8 Bh6 Ndb3 Bh1 Be7 Qh8 Bf6 Qce5 Rc8 Bg2 d8N Bf3 Nb7 Bg7 Nd7 Bf8 Rd8 Be7 Qcd4 Bb4 Qc5 Ba5 Nd6 Qb4 Nb7 Bg2 Qf4 Bf3 Nf8 Rc8 Rd2 Qb6 Nd6 Qb8 Qf5 Ba8 Qe4 Nh1+
q2b1Q1n/r2n1B1R/2nP1B1Q/6R1/kn5r/rN1B1BB1/3KR1bN/4q1QR w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 e5 d4 a5 g6 h5 f6 e4 f5 c4 f7 e3 g5 c3 g7 h4 f6 e2 g6 c2 d6 a4 d5 h3 b6 a3 b7 h2 b5 a2 b6 Ra4 Nd2 Ra3 Bb2 c1Q Nb3 Rh4 Nf3 Qcc7 Kd2 e1R Bd3 Re6 Qg1 Rg4 Re1 a1N Re2 Nh6 g8B Rh4 g7 Nc6 b8B Re7 b7 Nc2 Bgh7 Qe8 g8B Qcd8 Bhe4 N2b4 Ba1 Bg7 f8Q Nf7 Bc3 Nh8 f7 Bf6 Qh6 Qa5 f8Q Qa8 Be5 Rh7 Bf7 Bd8 Bf6 Qe5 Bc7 Qg3 b8R Bb7 Bb6 Qe5 Bf2 Qa1 Bg3 Qe1+ Ke3 Bc7 Re8 Bd8 Re7+ Kc8 Bg8 Ne5 d7+ Kc7 d6+ Kb6 Qf2 Bc7 Rf1 h1N Nh2 Bc6 Qg2 Nf2 Rh1 Bb7 Bed5 Ne4 Qg1 Nc5 Rg7 Bc6 Rg5 Re7 d8R Rf7 Rc8 Bd8 Bg2 Rfa7 Rc7 Bf3 Rh7 Ncd7 Bf7 Nec6 Bh3 Bg2 Bg4 Ne7 Bf3 Nec6 Bf5 Kb5 B5g6+ Ka4 Bd3 Qb1 Kd2 Qe1+
B2Kr3/1R1nRQ2/2P4b/1Q1B4/N1nb3k/1qRQR1qb/1q3B2/N1B1rRb1 w - - 0 1 illegal: No possible last move
1q2Bk2/2Rq4/PNBN1K2/1r1b1nB1/N2n1QbN/5Q1N/Bbn5/1rR1n1R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 e5 Kd3 c5 Ke4 b5 d4 h5 a4 b4 g4 b3 f4 c4 g6 c3 f6 h4 g5 b2 d6 h3 d5 c2 g7 h2 f7+ Kd7 Kf5 e4 g6 e3 Bb5+ Nc6 Nc3 b1N Nh3 e2 Rg1 e1N Qf3 Rb8 Bd2 Nf6 g8B c1Q g7 Qa3 Bh7 Rg8 Bg6 Be7 f8Q Bb7 Bc1 Kc8 d7+ Kc7 Bd2 Bc8 d6+ Kb7 Ke6 Nh5 f5 Qb6 Bg5 Qc7 Qf7 Rd8 g8B Qb6 Qf6 Qac5 Be8 Ng3 Qd4 Qa6 Qdf4 Ne4 Kf7 Nb4 Bc6+ Ka7 Kg6 Qb7 Ba2 Qd5 Kg7 Qb6 Kg6 Na3 Rc1 Nbc2 Kg7 Qd2 Kf7 Bb7 Kg7 Rdc8 d8N Ng3 d7 Nb5 Nf7 Ba3 d8R Qd5 Kg6 Nbd4 Rd7 Qb1 Rc7 Qb2 a6 Kb6 a5+ Kc5 a7 h1B a8N Qb4 a6 Bg2 Qf2 Qd7 f6 Bf3 Ba4+ Bbc6 Q2e3 Bg4 Bb5 Qb3 Na4+ Kd5 Qef2 Ke6 Nd6 Ngf5 f7 Bd5 Bc6 Rb6 Q2f3 Rcb8 Bh6 Ke7 f8N R6b7 Kg5 Qb6 Kg6 Qa7 Kg5 Rb1 Ng6+ Kd8 Nh4 Ke7 Kg6 Bb2 Bg5+ Kf8 Kf6 Rb5 N8b6 Qb8
1Q1r2B1/1b2q2P/1Bk1B2R/5Q1q/1K1nNQ2/Rn2n3/1NbQr2n/BR1B2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 e4 c5 d4 g5 Kd2 f5 Kc3 a4 h6 a3 e6+ Kd6 e7 g4 e8B a2 h5 c4 b6 g3 e5+ Ke7 d6+ Ke6 b7 Kd5 b5 f4 h7 f3 h6 g2 e6 f2 b6 Nc6 b8Q Nge7 b7 Rg8 h8R Nb4 d7 Qc7 d8Q+ Bd7 Be2 f1B Na3 Nec6 e7 Na5 Qdc8 Bg4 Qf5+ Qe5 Nh3 g1N Nf2 Nac6 Qd2 Ra5 Bb2 Nc2 Bd7 Ne3 e8B Bg2 Bd1 Nf3 Ne4 Nh2 h7 Ra8 Rb1 Bc5 Ba1 Rg6 Qc7 Rd8 b8Q Re6 Bf7 Be2 Bc8 Bd3 Bg8 Bc2 Qcf7 Ba7 Qf4 Qh5 Q7f5+ Ne5 Kb4 c3 Nc4 Kc6 Nb2 Nef3 Rg1 Re7 Bce6 Bh1 Rg6 Bb6 Na4 Ba7 Rh6 Bb6 Bb2 a1Q Nd6 Rg7 Q4e5 Nc4 Qa7 Ra8 Bef7 Qa2 Qee3 Bb3 Qdd3 c2 Ba1 c1N Qef4 Qf2 Nb2 Re8 Qdd2 Qfh4 Be6 Qe7 Bgf7 Rg2 Qa8+ Kc7 d5 Bc2 Rg8 Nf1 Rg3 Re2 Bg8 Bg1 Rh3 Nd4 Ra3 Rd8 Qc8+ Kb6 Qb8+ Qb7 Nf7 Ncb3 Ng5 Nce3 d6 Nh2 d7 Bd5 Ne4 Bc6 Qc8 Qc7 Qa8 Bb7 Qb8 Rf8 d8B Kc6 Nf6 Qg7 Bb6 Rd8 Ne4 Qe7+
1rqQ3K/5NPN/4q1Bn/RQN3Bb/1n3bQq/6N1/4RQq1/r1k1bQ1B w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 a3 f7 h3 g6 c4 g5 a2 f5 h2 b6 c3 d6 c2 g7 Kb3 b7 Rh7 f6 Rh3 g6 Ra6 Qg4 Rh6 Bg5 c1Q Nc3 Kc2 b4 Qa5+ b5 Ra7 d8Q Qe3+ Ne4 Qb4 b6 Qc4 d7 Rh8 Bg2 Ra6 Ne2 Ne7 g8B Qg1 N2g3 Qb3 Nc5 Qc4 Bh7 Bh6 f8N Nf5 f7 Nc6+ Kf6 e5 b8Q e4 b7 e3 Qbf4 e2 b8Q e1B Qb5 Nb4+ Bc6 Qe4 Qff1 Qgg2 g7 Ra3 Bg6 Qe3 Rg1 h1Q Nh7 Qh4 f8Q Rg8 Ba8 Bb7 Rh1 Bf3 Rh2 Ra7 Kf7 Bd1 Rb1 a1Q Bf3 Qa6 Ra1 Kd2 Ra5 Kc1 Ba8 Qc8 Bb7 Qh1 Re2 Q1h3 Bh1 Qg2 Qfe7 Re8 Qf8 Ra8 Kg8 Ra6 Be7 Bf4 Kh8 Nh6 Bf6 Qe6 Bg5 Re7 Qf6 Ra8 Qd4 Rb8 Qdf2 Rf7 Qg8 Re7 d8N Ra7 Nf7 Ra6 Qd8 Ra7 Re3 Bf3 Re2 Ra6 Qh3 Bh5 Qg4 Rab6 Ra8 Ra6 Ra7 Ra4 Ra5 Ra1
2b1nq2/3kP2n/R2b1B2/3NB2Q/1K1NB1rR/1Q1bn3/N2Qq1rQ/1n4BB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 g5 b4 f5 d4 c5 Kd2 a5 Kc3 f4 e4 g4 e6 c4 e7 f3 e5 g3 h6 g2 d6 f2 h7 a4 d5 a3 d7+ Kf7 e8B+ Ke7 d6+ Ke6 b6 a2 b5 Ra5 h5 Na6 b7 Ne7 b8N Qb6 d8Q Ng8 h6 Qe3+ Bd3 f1B b6 Bg7 b7 Bd7 Nf3 g1N Qb3 Qc5 Be3 Nf6 Be4 Rb5 Nc6 Rf8 h8B Bc8 b8Q Rb4 d7 Bd3 h7 Rg8 Ne7 Bf8 Rh4 Nc7 Nd5 Bd6 Bg7 Ra4 h8Q Nh7 Qg5 Qb5 d8B Qa6 Bc6 Ne8 Bb7 Kd7 Nd4 Nf3 Bg1 Nd2 Bgf6 Rb4 Bc7 Rg7 Qh5 Rg2 Qg8 Qa8 Qg3 Qa6 Qh2 Qb5 Qa8 Qc5 Qa5 Qb5 Kb2 c3+ Ka3 c2 Nbc3 Qc5 Bb8 Rc4+ Qab4 c1Q+ Ka4 Qb2 Bc7 Nb1 Ba8 Bb7 e6+ Kc8 Bb8 Qe2 e7 Kd7 Bc7 Bc8 Bb8 Qc7 Kb5 Qd8 Bc7 Bc5 Bce5 Bd6 Qb2 Ng7 Qd2 Qf8 Qb3 Ne8 Ka5 Rc6 Ncb5 Rc1 Nbc3 Rf1 Ka4 Rf4 Ka5 Rfg4 Ka4 Bb8 Kb4 Bd6+ Ka5 Qg8 Bf3 R2g3 Nc7 Bb7 Bh1 Bc8 Bae4 Rg2 N7d5 Qf8 Ka4 Na3 Rd1 a1N Rc1 N1c2 Ra1 Bc7 Ra2 Ne3 Kb4 Nb1 Ra6 Bb8 Na2 Bd6+
2N1B1k1/1Q1P1Nr1/2N1KQ2/3NQ2q/q3BRnb/3bb3/b1n3Q1/1RQ1Brr1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 Ke5 h5 b4 c4 d4 e6 f4 h4 g4 h3 b6 h2 b5 a4 g6+ Kg7 b7 c3 d6 a3 d5 a2 d7 c2 d6 Qe7 d8N Na6 b8Q Qd7 f6+ Kh6 g7 Kh7 g5 Ra7 g6+ Kh6 f7 Qc7 b6 Bb7 Nf3 Nf6 g8Q Rh7 g7 Qc4 d7 Ra8 f5+ Kh5 Nc6 Qb4 Ng5+ Kh6 Bd3 Qe1+ Be4 Be7 f8N Qh4 Rf1 h1B Bd2 c1B Be1 Nb4 Ng6 Be3 Qc1 Ba6 b7 Qh5 Nc3 Nc2 Rb1 a1Q Rf4 Qa4 Nd5 Bd3 Qd6 Rd8 b8Q Rf8 Qb7 Bd8 Qdc7 Ng4+ Kd6 e5 f6 Bf3 f7 Bd1 Ke6 Bf6 Bg2 e4 Nge7 Bf3 Nc8 Bfe2 Nf3 Bh4 Qe5 Bc4 Ng5 Bed3 Bh1 Ba2 Bf3 Bd4 Bg2 e3 Bh1 e2 Be4 Rd8 f8Q Be3 Qfd6 Rf8 Qe7 Rf5 Nf7+ Kg6 Bb4 e1R Qef8 Rh1 Be1 Rf1 Qd8 Rh1 Qdb6 Rf1 Qbb2 Rh1 Qf8 Rg1 g8B Rg7 Qe7 Na1 Qg2 Nc2 Nfd6 Qb4 Bf7+ Kh7 Q7f6 Qa4 Be8 Kg8 Nf7 Nh2 Rg4 Rff1 Rf4 Ng4
2b1r1Bk/3P4/2b3Q1/2qbq2n/Q1BB2B1/r2NrB2/K1N2QRb/1R2N1Nn w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 h5 e4 c5 d4 f5 Kd2 Kf7 Kc3 Kg7 Kb3 a5 g4 f4 e6 a4+ Ka2 h4 e7 c4 e8B f3 e5 h3 e6 f2 g6 a3 d6 c3 g5 h2 d5 c2 b6 Nf6 e7 Nc6 b5 Ne4 d7 Rh5 b7 Rh8 b8N Rg8 d6 Nd2 b6 Ne5 b7 Ndf3 Bh3 f1B Be3 c1Q Na6 Nc4 b8Q Na5 Bg4 Nb3 Nc5 Ra6 Nd3 Ra7 Nd2 Nbd4 Qb2 Qc6 Rb1 Kh8 Qa4 Ne1 Ndf3 Bg2 Qf2 Nf5 Bd4+ Ng7 Bf7 Qc3 e8Q Qf6 d8N Qe5 d7 Qcc5 Nc6 Nh5 Bd5 Bd6 Ncb4 Bb8 Qf7 Re8 Nc2 Ra6 Ba8 Rae6 g7+ Kh7 g8B+ Kh8 Ka1 a2 g6 Bc7 Kb2 a1R Qf5 R6e7 Bc4 Ra3 Qg5 Qf6 Bb7 Re3 Bbd5 Qe5 g7+ Kh7 g8B+ Kh8 Qg6 Bd6 Ba8 Bc7 Nh4 Bc6 Ng2 Bd5 Ne2 Bb8 Rg1 h1B Bb7 Nf3 Ba8 Nh2 Nge1 Nf1 Rg2 Nfg3 Ng1 Bc6 Rh2 Bhf3 Rg2 Bfd5 Bb7 Nh1 Ba8 Rc3 Ka2 Bd6 Bb7 Bc7 Ba8 Ra3+ Kb2 Qg7 Qg5 Bf3 Ndb4 Bb5 Nbd3 Bh2 Qg6 Qge5 Bad5 Bc6 Be4 Rb3+ Ka2 Rc3 Bef5 Bfe4 Bf3 Bed5 B5g4 Ra3+
3q1br1/PN1N1R2/QQ3Bn1/1KQb1k1n/1Rr1q2q/N2BRN2/qb6/R4N2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 g5 Kc4 c5 a4 e5 h4 b6 d4 e4 f4 e3 a6 g4 h6 e2 a7 e1B f6 g3 a5 g2 h5 Ne7 d6 Ke6 h7 Kf5 h6 Bd7 f7 Ba4 d5 Nbc6 d7 Nc8 a6 Bd6 f8N N8e7 Nd2 Qb8 d8Q Bc2 Qe2 Bh4 Ngf3 g1Q Nd7 Ng8 Bb2 Qf2 Bf6 Qd4+ Kb5 c4 Rh3 Bf8 d6 Kg4 f5 c3 Qc8 Nce7 Qc5 Be1 Qe6 Qd5 Bd3 Bb3 Nf1 c2 Nde5+ Kf4 d7 c1Q d8N Bc3 Nc4 Ng6 Nb7 Qbd8 Na3 Rc8 a8Q Bb2 a7 Rc7 Qb8 Qe4 Qec4 Qc2 Qa4 Qh2 Qa6 Bd5 Rg3 N8e7 Rh3 Rg8 h8R Qg3 Rh7 Qh4 Rf7 Kg4 h7 Nf4 h8R Neg6 Rhh7 Nh5 Rh6 Ne7 Rg6+ Kf4 Rg2 Ng6 Rc2 Kg4 Rc4 Rc8 Rb4 Rc6 Bh8 Rc7 f6 Kf5 Rh7 Rc6 f7 Rc7 Bf6 Rc8 Qbd6 Rc7 Ka4 b5+ Ka5 Rc6+ Qcb6 Rc4 Qc5 Bd6 f8N Be7 Rb3 b4 Rf7 Bd6 Nd7 Bf8 Rc3 b3 Kb5 Bc1 Rg3 b2 Rb3 b1Q Rb4 Qa2 N3h2 Nh8 Re3 Ng6 Nf3 Bb2
1rkB1QK1/3r1Pbn/2b3N1/2RQ4/n3R3/rr2NQ1B/2qNr1R1/r2RQQ2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Kc4 e5 d4 g5 f4 a5 b4 a4 h4 g4 f6 a3 d6 g3 Kd5 a2 b6 c4 b7 c3 b5 c2 f5 e4 f7 g2 b6 e3 h6 e2 h7 e1R h5 Bh6 f8Q Bd2 h6 Nc6 b8Q Bb7 f6 Qc7 Qf3 Bg5 Rh5 Re3 Nh3 g1R Nd2 Rg4 Nf4 Rg1 Ng2 Re4 Ne3 Ba6 b7 Re8 Bh3+ Rg4 f7 Nce7+ Ke5 Qb6 d5 Qc6 Ba3 Rc8 Rg1 c1R Rg2 a1R Qf1 Ra7 Qa8 Rcb1 b8Q Rb3 Qb4 Rc3 Qbb1 Qb7 Qbe1 Qc7 Bc5 Be2 Bb6 Qc4 Bd8 Nf6 Rh4 Rg8 h8R Qb3 h7 R8c7 Qc6+ Kc8 d7+ Kb8 Ke6 Qc2 d6 Rb3 Qcf3 Bb5 Rh5 Bh4 Rc5 Ned5 Ke5 R4g6 Ke6 Nb6 Ke7 R8g7 Rg8 R7a3 h8N Bc6 Re2 Rg1 Ng6 Na4 Rg2 Rh1 Rg4 Rh2 Re4 Nh7+ Ke8 Ng5 Ke7 Rh7 Kf6 Rh5 Kg7 Nh7 Kh8 Bf6+ Rg7 Re5 Kg8 Rc3 Ne7 Rab3 Rg2 Bg7 Ng6 Rg5 Bf6+ Rc8 d8Q Rd5 d7 Rba3 Qa5 Rcb3 d8R Rd7 Qab5+ Kc7 Qbc4 Rcb8 Qd5 Re7 Rd6 Rd7 Bd8+ Kc8 Qdh5 Rc3 Rg3 R1a2 Nb3 Ng5 Rd1 Ra1 Nd2 Nh7 Qd5 Re2 Rg2 Rcb3
1Q6/RN1Q1b1k/2N1N1n1/1rr4n/2rRR1n1/2bP3K/1n1Q1QB1/rNN1B1q1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 e5 f4 c5 Kf2 a5 Kg2 g5 f6 a4 h6 Kg6 f7 g4 d3 g3 h5+ Kh7 b6 a3 f5 e4 b7 a2 f6 c4 b5 c3 b6 e3 d6 e2 d7 e1R Ne2 c2 Rh4 Qe8 d8N Nd7 b8N Ne7 b7 Ng6 Rd4 Ra5 Nbc6 Nde5 b8Q Rb5 Qd2 Bb4 f8Q Nc4 f7 Bc3 Nb7 Be6 Qc8 Rg8 Qd7 Nb2 Re4 Bb3 Kh3 g2 Qc5 g1R Qf2 Rgg5 Bg2 Rgc5 Rd4 Qb8 Re4 Rc8 f8N+ Kg8 Rd4 Bf7 Ne6 Qa7 h7+ Kh8 Ned8 Kg7 h8R Rc7 Rg8+ Kh7 h6 Rc8 Ne6 Rc4 Ne7 R8c5 Nc6 Rg1 Re8 Rf1 Qd1 Qb6 Be3 c1N Bd2 Qa7 Be1 Rg1 N2f4 Ne2 Qd2 Ng3 Ne2 Nh5 Nc1 Qa4 Nf4 Qd1 Ree4 Rf1 Ne6 Qg4+ Kh2 Qg5 Kh3 Qe3+ Qg3 Qg1 Qgf2 Ng3 Na3 Bb4 Nb3 Kg8 h7+ Kh8 Kg4 Be8 Qff7 Ba5 Bf2 Bc3 Qff4 Rb1 Be1 Bf7 Qff2 Rd1 Rb1 a1N Rc1 Nc2 Ra1 Rb1 Nc1 Ne2 Ra2 Ra1 Nb1 Nef4 Ra7 Ne3+ Kg3 Ne5 Nc7 Kg7 h8Q+ Kg6 Qa8 Kh7 Qb8 Nh5+ Kh3 Ng6 Ne6 Ng4
3NB1bQ/R1NN1R2/b3qbr1/B3nBn1/n1R4P/3r4/K2nR1Bk/R2Q1b2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 c4 Kg4 h4 Kg3 e4 a5 b6 g5 e6 f5 h6 d5 e5 d4 c6 d3 b7 d2 c5 g4 e7 f4 e8B f3 e6 a4+ Ka2 a3 b4 f2 b5 Nd7 b8N Ngf6 b6 Ra5 b7 Qb6 h7 Bh6 c7 Bf8 e7 Rg8 h8Q Nh7 c6 Nc5 Nh3 Bg7 Bg2 f1B Nc3 Bf6 Nd7 Rg6 b8R Bca6 c8B Na4 c7 Qe6+ Nd5 Ng5 Rb7 Rb5 Rg1 Rb3 Nhf4 Kh2 Ra7 g3 Bb2 Rd3 Bc3 Nb6 Ba5 Na4 Qe2 d1B Qe1 Qg8 Ne6 Bg4 Nd8 Qe6 Qd1 Bf5 Bh3 g2 Bb7 Bg4 c8R Bh5 Rc4 Bf3 Nc7 Bd5 Kb1 a2+ Kc1 Qe5 Bf5 Bg8 Bc6 Qe6 Bb7 Be2 Rf1 g1N Bg2 N1f3 Kc2 Ne5 Rf3 Nc3 Kb3 Bf1 Bg4 Bg7 Rf7 Bf6 Bf5 Na4+ Bc3 Rd4 Ba5 Rd6 Rb1 a1N+ Ka2 Nb3 Ra1 Nd2 Nf8 Rd5 Bd7 Nd3 e8R Qc6 Re2 Ne5 Be8 Rd3 Nd7 Qe6
rbNrb3/6bk/1r1N4/rQ2PNqB/5QB1/B2nQ3/BnKRBb1Q/5R2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 h5 e4 c5 d4 f5 Kd2 Kf7 g4 Kg7 b6 a5 e6 h4 b5 f4 e7 a4 e8B c4 g6 a3 d6 f3 d7 a2 b7 f2 d5 c3+ Kc2 h3 d6 h2 b6 Ra7 g5 Nf6 Ba3 Rg8 Qd2 Qe7 d8Q Nd5 d7 Na6 b8Q Rc7 b7 Rc4 Qa5 Qe5 d8N Bb4 Nf7 Nb6 Ne2 Rc7 Qb5 Qc5 Ng3 Bd7 Nd6 Na4 Nc8 Nb2 Be2 f1R Qe3 Rc6 Qbf4 Rb6 b8Q Rd1 Rf1 h1R Nd2 Rh5 Nc4 Rdd6 Rad1 a1B Bf7 Be8 Rd2 Rd8 N4d6 Qe5 Bg4 Bc5 Ngf5+ Kh8 g7+ Kh7 Bc4 Qe7 Bce2 Nb4+ Kb1 N4d3 Kc2 Bd4 Qh2 Be5 Qc7 Bg3 Qcc4 Bf2 Qcb4 Rh8 g8B+ Kg6 Ba2 Kh7 Qbd4 Qf6 Qde5 Qg7 Q5f4 Qh6 Kb3 c2 Kc3 c1B Kc2 Nd1 Bf7 Bg7 Ba2 N1b2 Bf7 Rf8 g6+ Kh8 Ba2 Qg5 Bf7 Bf6 g7+ Kh7 Ba2 Be5 Nb7 Bb8 g8B+ Kg6 Bgf7+ Kh7 Rdd1 Bd2 Nbd6 Bc3 Rd2 Bg7 e5 Rh6 Kb3 Ra6 Kc2 Ra5 Bfh5 Re6 Nf7 Rb6 N7d6 Rf7 Bb4 Rfa7 Ba3 Ra8
1R3b2/QNrBkN1N/Q1b2R2/p1K2R2/b2rNq2/1N1n4/1nR2PQB/r6n w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 h5 Ke3 c5 b4 e5 d4 a5 g4 c4 d6 h4 d5 c3 f6 e4 Kd4 e3 d7+ Kf7 b6 h3 b5 h2 b7 e2 d6 e1R g6+ Ke6 g5 c2 b6 Re5 f7 Bg7 f8N+ Kf5 Qe2 Rh3 Bf4 c1N Ra2 Re8+ Kc5 Ra7 Nd2 Nf6 Qa6 Rh7 Nb3 Re4 Rc2 Nd5 Ne2 Ra8 Nc3 Bh8 g7 Ra4 g8Q Nb4 g6 Kf6 g7 N8c6 b8R Nd4 b7 Nde2 Bh3 Ng3 Re1 h1B Re5 Qe7 d8N Qf7 d7+ Bc6 Rf5+ Ke7 Ne4 Nh1 Bh2 Ra1 Rf6 Rh4 Nh7 Ra7 Bg4 Qf8 Nf7 Ba4 d8N Bcd7 Be6 Bdc6 Bd7 Rg4 Ra8 Rh4 b8Q Rc7 Qba7 Rg4 Nb7 Ncd3+ Kd4 Nb2 Kc5 Rh4 Rb8 Rf4 Nfg5 Rh4 Qd5 Rg4 g8R Bg7 Nf7 Bh6 Rg5 N4d3+ Kb6 Rh4 Rgf5 Bg7 Ned6 Rd4 Qg2 Qd8 Ne4 Bf8 Be6 Qd6 Bc8 Ne1 Bd7 Qf4 Kc5 Ned3+
B1Rbr1rB/BB3RnQ/NP6/2b1qQ1R/p4RNn/3n4/2b1Br2/2k1NK2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 g4 c5 f6 e5 f5 h5 b6 c4 f7 c3 b5 h4 g6 e4 g7 h3 b7 h2 f6 a4 g5 c2 g6 e3 Nf3 e2 Ne5 Qa5+ Nd2 Qb6 Bb2 c1N Ng4 Be6 Qc2 Ra7 Nf3 Be7 f8Q Bc8 f7 Na6 b8N Nb4 Na6 Nf6 g8B Nba2 g7 Qd8 Qh7 Qa5+ Kf2 Bd7 Ne1 Ra8 Qc8 Be8 f8R Bg6 Rf7 Ne8 Qf5 Nb4 Ra3 Nc2 Rf3 Ne3 Rf4 Ng2 b6 Nc7 Bc3 Ne6 Bb2 Kd7 d6 Kc6 d5+ Kb5 d7 Nh4 d8B Bc5+ Bd4 Kc4 d6 Kb3 d7 Rc8 Bc7 Re8 d8R Qc3 Bb8 Kb2 Ba7 Nd3+ Kg3 Kc1 Rc8 Be7 Bg2 Bd8 Bb7 Qc7 Qg5 Be4 Qgf5 Qc5 Bc3 Qe5 Ba8 Ndc5 Kf2 Bc2 Ng2+ e1B+ Kf1 Bf2 Ne1 Bd4 Re7 Qc7 Rf2 Ng2 Rf4 Qb8 Bf7 Nd3 Ba1 Bc5 g8B Nb4 Bg7 Qe5 Bf6 Nd4 Bfd5 Ne6 Bf7 Rhg8 Bh8 Ng7 Rd7 Qc3 Bdb7 Qe5 Bfd5 Nd3 Rf7 Nb2 Bf3 Nd3 Rg1 h1R Be2 Rh2 Rh1 Ne3+ Kg1 Rf2 Rh5 Ng2 Qe4 Nh4 Qef5 Rh2+ Kf1 Rf2+
Q7/RN1Q3N/PqR1bNp1/2R2nbB/4n2N/rR1r3k/b1rB1B1N/3K3n w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kd7 d4 c5 h4 b5 f4 e5 h6 e4 h5 c4 d6 g6 f6 Ke6 d7 Kf5 f7 c3 d5 c2 h7 b4 a6 e3 d6 e2 h6 Kg4 f5 b3 a5 b2 f6 Bg7 f8N Bb7 f7 Qe7 d8R Qe4 d7 Bc8 a7 Qg2 Nf3 Ba6 Rh5 Kg3 Nh4 Qc6 Bd2 c1N Rc8 Qa4 d8N Qe4 Rc6 Qb4 Rhc5 Bb5 Nb7 Bc4 Nd7 Ne7 f8N Be6 Nf6 Nf5 a6 Nd7 Ra3+ Qb3 Bh3 Rd8 a8Q Kh2 Bf1 Qb6 Rb3 Rg8 h8B Rc8 h7 Bh6 Ng2 Bg5 Nh4 Rg7 Bg2 Rc7 Bf3 Kh3 Re3 Re7 Rb3 Re8 Bg7 Rd8 h8R Rcc8 Bh6 Rc7 Be3 Nd3+ Kd2 e1R Bh5 Rg1 N8h7 Rg3 Kc2 Nf2 Nd2 Rcc8 Ndf3 Nh1 Nh2 b1B+ Kc1 Rc7 Rf8 Ba2 Rf7 Rcc8 Qd5 Rc7 Kd1 Rf3 Bf2 Rcc8 Rc4 Nc5 Qd7 Ne4 R4c5 Rc7 Bf8 Rg3 Bd6 Re3 Bf4 Rc3 Bd2 Rcc8 Qe8 Rdd3 Rfc7 Rc2 Qd7 Re8 Na5 Rf8 Ra7 Rd8 Nb7 Re3 Qe7 Rdd3 Qd7 Rg3 Rb1 Ra3 Rb3 Rd3
6Q1/p1k2n1b/2rNB2N/P2B4/N2nKrQN/R2BRr2/1bQ3bB/1q4Nn w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 g5 c4 g4 cxd5 g3 hxg3 Nd7 g4 Nb8 g5 Bd7 Ne2 Be6 Ng1 Bc8 Ke2 Kd7 Kd3 h5 a4 b5 f4 e5 g4 b4 c6+ Kd6 g6 h4 f6 h3 f7 b3 g7 b2 g5 h2 a5 Nh6 g8N Rh7 f5 Ba6+ Ke4 Qd7 d4 Kc7 g6 Qc8 g7 Qe6 d6+ Kc8 d7+ Kc7 d8N Ng4 f6 Kc8 d5 Kc7 d6+ Kc8 c7 Bb5 Nh6 Be8 g8B Bg7 f8Q Nc6 f7 Qa2 Bd3 Nd4 Nc3 b1B Bf4 Bd7 Qc2 Bc6+ Nd5 Kd7 Nb7 Rc8 Bg3 Bh8 Qg7 Qb2 Qg6 Rg7 Qh5 Rg5 Ra3 Rf5 Qh4 Re8 Qg5 Re6 f8N+ Kc8 Ng6 Qa2 Nf7 Nh6 Nh4 Qa1 Qg4 Rg6 Ke3 e4 Nc3 Bd5 Na4 Qa2 Kd2 e3+ Kc3 Kd7 c8B+ Kc6 d7 e2 d8Q e1R Be6 Bg2 Qa8 Ref1 Nbd6+ Kc7 Be5 Qb2+ Kc4 R1f3 Kd5+ Qc3 Ke4 Bf6 Nc5 Qb4 Na4+ Nc6+ Bec4 Rgg5 Kd5 Qb2 Qd2 Qc2 Bf1 R5f4 Nh3 Qb2 Bb3 Bg6 Bd3 Bh8 Qc2 Rgf5 Re1 h1N Re3 Qb1 Ng1 Rc4 Ba2 Rc5+ Ke4 Bh7 Bh2 Bb2 Bd5 Nd4 Qg5 Ng4 Nh6 Rc6 Bge6 Ne5 Qag8 Nf7 Qg4 R5f4#
1Q2q1B1/qb2n1BQ/8/1bQN4/qRR2bNQ/2N3pr/1rPk1n2/R3RK1R w - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 e5 fxe5 b5 a4 h4 axb5 h3 gxh3 Na6 h4 Nb8 h5 Qb6 Nd2 Qf6 Nb1 Qd8 e4 Ke7 b4 Ke6 h4 f5 c6 g5 c7 d5 h6 a5 h7 d4 h5 g4 b6 g3 b7 a4 h6 d3 b5 a3 b6 f4 Bb2 f3 Nh3 a2 Nf2 Qf6 Ng4 Bd7 c8R Ra3 Rc4 Qd8 Nc3 Na6 b8Q Bc6 b7 Nb4 Bh3 d2+ Kf1 f2 Qb1 Ke7 e6 Rb3 e5 Nd3 Bg2 d1B Bd5 Qe8 Qc8 Rb4 b8R Bf3 Rb6 Rb3 Rbb4 Bb5 Qb8 Be4 Qc1 Bg7 Qg5+ Bf6 Qe3 Bg5 Qd4 Bf4 Qdb6 Kf8 Qe3 Ne7 Qc5 Rg8 h8Q Bf3 Rb1 a1Q Qh7 Qa7 Ra1 Be4 Qg6 Bf3 h7 Rh8 Qh5 Kg7 Qh4 Rf8 h8Q+ Kg6 Qg7+ Kf5 Qgh6 Rh8 Qh7+ Ng6 e7 Qa4 Bg8 Bb7 Bc1 Rb2 Be3 Qa7 Bd4 Qa4 Nd1 Ke4 e6 Qa7 Nc3+ Kf3 Qf7 Rh5 Qh7 Rh6 Bg7 Rh5 Qhg5 Rh3 Qgh6 Qd7 e8N Ne7 Nef6 Qe8 Qh4 Qa4 Nh6 Qa7 Rd4 Ke3 Nfd5+ Kd2 Ng4 Qa4 Rdc4 Nf5 e7 Qc6 e8R Qg6 Re5 Ne7 Kg2 Qh5 Ree1 Qe8 Kf3 f1Q+ Qf2+ Qe2+ Kg2 Nc1 Kg1 Nd3 Qfa7 Qe3+ Kf1 Nf2 Qb6 Qd4 Qc6 Qb6 Qc5 Qba7
n4N2/q3Q1Q1/2n2N1Q/1n3bNq/1b1r1QNB/1K4p1/BqP1r3/1R2NRBk w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 h4 Ke5 f4+ Ke4 b4 g5 f6 a5 b6 d5 b5 e5 c6 d4+ Kb3 g4 h6 g3 h5 d3 c7 d2 f7 Bg7 f8N Qg5 b7 Rh7 f5 Bd7 c8N Be6+ Bc4 Ra7 b6 Kf4 f6 e4 f7 e3 Ne7 e2 Nc6 e1N Nc3 Bf5 Qg4+ Ke3 Nd5+ Kf2 Nf3 Kg2 Nf6 d1Q Nce5 Qd6 Rf1 Qd8 Rb1 Nd7 b8Q Qe7 b7 Nb6 Qe4 Ra8 Ne6 Bf8 Neg4 Ra6 Be3 Na8 Qa7 Rd6 b8Q Rd4 Bg1 Kh1 Qbf4 Qg6 Qb6 Qa7 Neg5 Bb4 f8N Re7 h7 Qe8 h6 Qh5 Qeb7 Re2 h8Q Ne7 h7 Nc6 Qhg7 a4+ Ka2 a3 h8B Ree4 Kb3 a2 Qbe7 a1Q Be6 Re2 Bf7 Nd3 Ne1 Nde5 N6d7 Bg6 Ne4 Qb7 Qg8 Qb2+ Ka4 Na7 Bf6 Qh3 Qg7 Qc8 Ba2 Qh5 Bh4 Qc5 Ng5 Bf5 Qbh6 Nb5 Ndf6 Qb6 Nfe6 Nc6 Nf8 Qc1 Kb3 Qa7 Rb2 Qa1 Rb1 Qb2+
r2R1R2/Q1b1b1k1/BB1n3R/2q4Q/2r1qN2/1Kp3NN/NrPR2nB/1R3q2 w - - 0 1 illegal: No possible last move
1R6/k2q3N/1R3N1Q/r1N2rbB/1q2n2N/NpR1nbK1/1P1Q1B2/2B1nrR1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 Qd7 a4 Qb5 axb5 Kd7 Bg2 Kd8 Bf1 Ke8 f4 Kd7 Kf2 a5 h4 g5 d4 e5 d6 c5 d5 e4 f6 g4 f5 c4 h6 a4 f7 c3 h5 b3 f6 c2 b6 e3+ Kg3 a3 h7 a2 b7 e2 h6 e1R Qd2 Ra4 Rh3 Ra5 Na3 Na6 b8R Bb7 Nf3 Be7 Nh4 Nc5 Be2 Rf1 Rb1 Ba8 Rb6 Kc8 f8N a1Q f7 Nf6 Nd7 Rf8 h8Q Nb7 h7 Bd8 Qg7 Qa2 h8R Qa1 Ne5 Kb8 d7 Ka7 d6 Nd5 Qgh6 Bg5 d8N Ne3 d7 Nd6 Ne6 Bf3 d8B Qa2 Nd7 Qa1 Nc4 Qa3 Nf6 Qb4 Bc7 Re8 Nc5 Re5 f8N Rf5 Qd5 Qc3 N8h7 Qb4 Bd2 c1Q Na3 Qcc3 Bc1 Qd3 Rhb8 Qdb5 Qd2 Qd7 Kh2 Bg2 Rg3 Bf3 Rg1 g3+ Kh3 g2 Kg3 Nb5 Be5 Nd6 Bd4 Ng4 Bf2 Ne3 Rh1 g1N Rh3 Bb7 Bh5 Nf3 Ra1 Ne1 Kh2 Nd5 Rc3 Ne3 Kg3 Bf3 Qd4 Nd3 Bd2 Rh1 Rf1 Ne1 Bc1 Qc6 Qd2 Qc8 Rg1 Qd7 Rg2 Rf1 Rg1 Ne4+
2qN2bQ/4Q1r1/Rn3n2/5Q2/1N1N1bp1/1B1B3N/2Kn1bPq/RQB2Qrk w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 g4 c4 Qd6 cxd5 Qa6 Ne2 Qh6 Ng1 Qg5 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 b4 Kf7 f4 e5 d4 h5 Kd2 a5 f6 Kg6 f7 Kf5 g6 Ke4 d6 c5 g7 h4 d7 a4 d8N c4 b6 a3 b5 h3 f5 c3+ Kc2 h2 b7 a2 b6 Rh7 d5 Nf6 g8B Rg7 d6 Nbd7 Nd2+ Ke3 b8N Kf2 b7 e4 Bd3 e3 Ndf3 e2 Na6 e1B b8Q Nb6 d7 Bd6 f8Q Bf4 Bb3 Kg3 Qe5 Bf2 Nb4 Bb7 Qb5 Bd5 Nh3 Bg8 Qe7 Rc8 Rf1 h1Q Nd4 Kh2 Re1 Qg1 Re6 Kh1 Qf1 Rc5 Rd6 Re5 Rc6 Re1 Re6 Nc8 Ra6 Nb6 N8e6 Rd1 d8Q Re1 Qc8 Rd1 Nd8 Re1 Qfe2 Qh2 Qcb7 Rg1 Qf1 Bf7 Qbe8 Bd5 Qh8 Bg8 Rb1 a1Q Qb8 Qa4 Ra1 Qc6 Qbb7 Nh7 f6 Qc8 f7 Nf6 Kb1 c2+ Kb2 Qc6 f8Q Qc8 Qff7 Nfd5 Qf5 Nf6 Be3 c1N Qbe4 Na2 Bc1 Nc3 Kc2 Nb1+ Qc6 Bb8 Qc3 Bc7 Qb2 Nd2 Qb1 Bf4+
2k3r1/Q1B1n3/3qb1N1/3b1RQ1/1B1PKNnR/4RB2/qpR1rRQ1/2nQ2b1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 c5 d4 e5 a4 b5 g4 h5 a6 b4 a5 c4 g6 b3 d6 h4 g5 c3 f6 b2 f7 h3 a7 c2 a6 h2 g7 Nc6 g6 Nb8 Ke4 Rh3 f4 Qb6 f5 Rd3 f6 Kd8 d7 Qc7 Bd2 c1N Bb4 Nc6 Na3 Nb8 Nh3 Rg3 Bg2 Rf3 Nf4 Rf1 Bf3 Nb3 Rc1 Na1 Rc2 Nc6 Nc4 Nh6 g8Q Ng4 g7 Rf2 Qh7 Rg2 g8Q Ne7 Qg5 Qd6 Re1 h1B Re3 Bh6 f8R+ Kc7 f7 Nb3 d8B+ Kd7 Qhg6 Re2 Bc7 Nc1 Rh8 Bg2 f8R Rb8 a8R Bh1 Q5h5 Bg5 a7 Bh4 Qe1 Bf2 Rf5 Bg1 Qd1 Bg2 Qhg5 Bh1 Bca5 Bg2 Rh4 Bh1 Nb6+ Kd8 Qg7 Be6 Nbd5+ Kd7 Bc7 Rg8 Rb8 Bg2 Rb5 Kc8 a8Q+ Kd7 Rf8 Rf2 Ng6 Bf7 Ree2 Bh3 Qh8 Nh6 Qg2 Bf5+ Ke3 Be4 Qb7 Be6 Bg4 Bf3 Qb6 Be4 Rf3 Kc8 Ndf4 Bb7 Qa7 e4 Qe5 Bc6 Qg5 Bb7 Rf5 Bbd5 Kd2 e3+ Kc3 Kd7 Rg3 Kc8 Red2 e2 Re3 e1Q Bf3 Qe2 Q5g3 Qea6 Qg5 Qa2 Rde2 Rf1 Rf2 Re1 Kd2 Re2+ Kc3 Nb3 Kd3 Ng4 Qdf1 Bc4+ Ke4 Nc1 Qd1 Bcd5+
B4r1B/2R1QrqB/NK5R/2QB1b1R/1P4k1/2q3N1/2q1nRpb/2bRn1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kd4 g5 Kc5 a5 e4 f4 h4 a4 b4 c6 d4 a3 h6 g4 d6+ Ke6 d5+ Kd7 h7 a2 h5 g3 e6+ Ke8 e5 g2 h6 f3 b6 f2 e7 Kd7 b7 Ra3 Rh5 Nf6 Nd2 Rf3 Ne2 Qc7 e8B+ Kd8 e6 Rf4 Ne4 Rg4 Bb2 Qf7 Rc1 Qc7 Bg6 a1B e7+ Kd7 e8B+ Kd8 Bef7 Kd7 Rf5 Rg8 h8R Rf4 h7 Bh6 Rh5 Rg7 Rf8 Ng4 h8R Ne5 Rh7 Bg5 R7h6 Nf3 Bh7 Rg8 Bg7 Be5 Bh8 Rf5 Rc2 Bh2 N2g3 Be3+ Qd4 Ne1 Be2 Bd2 Bf3 Bg5 Kc4 c5 Kb5 Nc6 b8Q c4 Qba7 c3 Rc1 c2 Qc4 f1Q Qg1 Qf2 Rd1 Re5 Rc1 Re8 Nc5+ Kd8 d7 Ke7 d8R Rg7 Rd1 c1Q Na6 Qc3 Bfg8 Bd7 Rc8 Bc1 Rf4 Q7e5 Rc7 Nd4+ Kb6 Rf8 Bfe4 Qe2 Rf2 Qec2 Qb5 Ne2 d6+ Kd8 Ba2 Rgf7 Ba8 Qg7 B2d5 Be6 d7 Ke7 Bg6 Kd6 d8Q+ Bd7 Qh4 Bf5 Qc5+ Ke5 Qd8 Q3b2 Bh7 Qbc3 Bf3+ Kf4 Bfd5+ Kg4 Qdd6 Ba3 Qe7 Bc1
1n3Rn1/2QK1N1B/8/1qQ2n1N/Qp3b1R/r2PRB2/bR3BRb/Qqr4k w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 g5 a4 c5 h4 e5 f4 b5 h6 b4 a6 c4 f6 g4 a5 c3 a7 g3 a6 c2 f5 g2 h7 Qc7 h5 Be6 h6 Qd8 f7 Ne7 f6 Qe8 Ra2 Kc5 d6 Bh3 d7 Nbc6 d8Q Nc8 Bd3 Qd7 Rb2 Nd4 Na3 Ne7 Rh2 Nef5 Qc7+ Nc6 Nc4 Rc8 a8B Ne3 a7 Nf5 Nd6 Ne7 Ne2 g1B Ng3 Ng8 Nh5 Be6 Rg2 Ba2 Qf1 Bg7 f8Q Bh2 f7 Bf6 Bb7 Bg5 a8Q Bgf4 Qa4 Qe8 Kf5 Kd5 Qfe7 e4 f8R e3 Nf7 e2 Be4+ Kd4 d3 e1Q Bd2 Qb1 Be1 c1N Bf2+ Be3 Bf3 Nb3 Ke6 Ra8 Qd1 Qb8 Bc8 Qb5 Kd7 Ra6 Be1 Bef4 Bf2+ Kc3 Qee5+ Nd4 Qe3 Nf5 Qc5+ Bc4 Qa1 Ra2 Qa4 Ra3 Rb3+ Kd2 Rb2+ Qc2 Bb7 Ba2 Be4 Ke2 Re8 Bc1 Bf3+ Kf1 Re3 Qb1 Ba8 Nge7 Bb7 Rf8 h8R Rc8 Rf8 Ng8 h7 Bd2 Ree8 Bdf4 h8R Rc3 Re4 Rc1 Re3 Ra8 Qac2 Ra3 Be4 Nfh6 Bh7 Nf5 Qa4 Qa5 Rg4 Qb5 Rh4 Kg2 Ba8 Nge7 Rhg8+ Kh1 Rg2 Ng8 Kc8 Ncd4 Bf3 Nc6 Kd7 Nb8+
2nb1kB1/1Q2R1r1/q1br2Q1/2NR1n2/P2p3N/KrB5/R1R1q3/1RB2bBN w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 e5 Kc3 b5 Kb4 d5 h4 g5 c4 g4 f4 e4 a4 g3 a6 e3 a7 g2 h6 e2 h5 e1Q+ Nd2 Qa5+ Ka3 Qd8 h7 Bb7 f6 Bc8 f7+ Ke7 f5 Bg7 f8R Qg3+ Nb3 Bd4 c6 Qg7 f6+ Ke6 c7 Na6 f7 Ke7 h6 Qg6 c5 Qf5 c6 Nb8 Bc4 Qdd7 Qc2 Bg7 Nc5 Qf6 Ra2 Qe8 Qg6 Ba6 c8Q Nd7 c7 Nb6 Qb7 Rd8 a8R Rd6 Ra7 Nc8 Nh3 g1R Nf2 Qe6 Rh5 Bf6 Nh1 Qc6 Rd8 Qe2 f8N Rg2 Rf5 Rg1 Rf1 b4+ Kb3 Bb5 Re1 Qa6 Rd1 Nb6 c8R+ Bd7 Rc6 Rg4 Rb8 Nc8 Rdd2 Bg5 Kb2 b3 Ka3 b2 Rc2 Re6 Rd6 b1B Bb3 Nf6 Bc4 Ne8 Bb3 Rg8 h8B Rb4 Bc3 Ng7 h7 Nf5 h8B Rg7 Bd4 Bh4 Bg1 Rb6 Qg3 Kf7 Ng6 Bd8 Nh4 Kf8 Qg6 Bc6 Rd7 Rd6 Bc4 Rg8 Bc3 d4 Bd5 Rg7 Bg8 Rf6 Rd5 Rd6 Qa8 Rb4 Re7 Rb6 Qb7 Rb4 Rcb2 Be4 Rc2 Bg2 Qd7 Bh3 Rb6 Bf1 Qb7 Rc4 Rb3 Rb4 Rb1 Rb3+
Q1N2bbB/6B1/2QR1RBN/r2qBbNq/p3r3/n1n1B1K1/k1P2r2/6QN w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 b4 d5 f4 g5 Kf2 a5 h6 e5 h5 d4 b6 d3 f6 Ke6 c6 Kd5 c7 Kc4 f5 e4 b7 g4 f7 e3+ Kg3 a4 f6 e2 h7 e1R h6 Ne7 b5 Re3+ Nf3 Nd5 b6 Nc6 b8Q Nce7 b7 Re6 Be3 Rg8 h8B Nf4 h7 Kb4 Rh6 d2 Bd3 Neg6 Qg1 d1B Ng5 Ra5 Nc3 Qd4 Nce4 Qd5 Nf2 Be2 Rd1 Ka3 Qa8 Ka2 b8B Ne5 Qc6 Nc4 Bg6 Re4 Nh1 Bf5 c8N Na3 Be5 Bc4 Rd4 Qe6 Rd6 Nd5 Rh3 Nc3 Rh6 Bg7 f8B Qd5 f7 Bb3 Be7 Bf8 B7f6 Bc4 Bfg7 Bb3 Kg2 g3 Kf3 g2 Kg3 Be7 f8Q Bc4 Qf7 Rf8 Qfe8 Rf7 Qa8 Bf8 Qec6 Rf6 Bh5 Rf7 Rhf6 Bb3 Bg6 Bc4 Qh2 g1Q+ Qg2 Qc1 Qg1 Qcd1 Rfe6 Q5d3 Bh6 Ra6 Bhf6 Ra5 h8N Rh7 Nhf7 Bb3 Bh8 Q3e2 B6g7 Rh2 Qca6 Qh5 Nh6 Rf2 Rf6 Bg8 Q6c6 Qd5
R1NBr1n1/1Q4BK/2QqqrQQ/4NB1P/Q2Bqb2/1r6/bp3RR1/2n4k w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 g5 h4 e5 d4 b5 f4 c5 a4 g4 a6 g3 h6 g2 h5 b4 h7 b3 a7 c4 f6 c3 f5 b2 a5 c2 a6 Bh6 f7 Be6 f8Q+ Ne7 f6 Be3 f7 Qd7 Nc3 Rg8 h8B Qe8 Qh6 Rg5 f8R Bf2 Nf3 g1R Nb5+ Kd7 d6 Kc6 d7 Be3 d8Q Rf5 d5+ Kc5 d6 Rg2 d7 Rf6 Bg7 Ng8 Rh2 Rg3 Rg2 Bf4 Nd6 Nc6 Nc8 Nd4 Bd3 Ba2 Be3 c1Q Qa4 Qe6 Qe8 Qd2 d8B Rb8 a8Q Qd1 Bd2 Ne2 a7 Nc1 Bc3 Qd2 Bc2 Qdd6 Qeg6 Rb3 Qb7 Rh3 a8Q Rh1 Ng5 Re1+ Kf3 Re2 Bf5 e4+ Kg4 e3 Nf7 Re1 Ne5 e2 Bb4+ Kd4 Bc3+ Ke3 Qac6 Rf1 Qaa4 e1Q Rf7 Rf2 Bd4+ Ke2 Rf8 Kf1 Kh4 Qe4 Kg4 Bh2+ Kg5 Re2 Qab5 Bb1 Ra8 Ba2 Qa4 Bg3 Rf2+ Kg1 Rg2+ Kh1 Qh8 Ne7 Kh6 Ng8+ Kh7 Bf4 Rf7 Bh6 Nf3 Qe8 Bh3 Qb1 Bd7 Re7 Ne5 Rfe6 Rff2 Rf6 Bh3 Bf4 Bf5 Nh6 Qf8 Qe4 Qh8 Ree6 Qf8 Ng8 Bh8 Qee7+ Qfg7 Qe8 Q7h6 Qed7+ Bg7 Re8 B8b6 Q6e6 Bd8 Qdd6
7k/K1b5/1qr1RqnB/R3P1NB/RQ4Q1/Q1n1Qb1B/1N3p2/1qRrQ1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Ke3 f5 Kd4 Kf7 b4 Kg7 h4 a5 e4 a4 e6 a3 d6 c6 Kc5 g4 d4 a2 d5 g3 b6 f4 e7 f3 e8B f2 b7 g2 b5 Qa5 h6+ Kh7 h5 Bg7 d7 Ne7 d8R Qe1 Kb6 c5 e5 c4 d6 c3 d7 c2 Qg4 Ra5 Na3 Ng6 Nc4 Qd2 Nb2 Qd3 Nh3 g1R Ng5+ Kg8 h7+ Kf8 h6 Ne7 Bh3 Na6 b8R Rg2 Ra8 Ng6 Ka7 Rg1 b6 Rc5 b7 Nc7 b8Q Nd5 Qbb4 Bf6 Be3 Rg8 h8Q c1Q h7 Bb7 Rdc8 Qf5 d8Q Nc3 Qdd4 Qcb1 Rc6 Rd1 Re6 Bd8 Bd2 Qf4 Qe3 Bf3 Rf1 Qf6 Rg1 Ne7 Bh5 Rc6 Qa3 Qd3 Rc1 a1Q Qb4 Ne4 Rg4 Nc3 Rd4 Qa2 Rd5 Qab1 Ra5 Qb5 Ra4 Qf7 Qf6 Rg6 Qf5 Kg7 Qfg4 Qf6 Qe1 Bc7 Bf4 Kh6 Ra5 Rg7 Bd2 Ng6 h8Q+ Rh7 Qb8 Kg7 Qb6 Rh8 Qbe3 Rg8 Rb8 Kh8 Rb6 Bg2 Rba6 Bf3 Ra4 Rg7 R6a5 Qc2 Nh7 Qg5 Qb6 Qb1 Qf5 Qf6 Bh6 Ne7 Qbe3 Rg1 Qfg4 Ng6 Ng5 Qb6+
3qQN2/1Q2Qn2/rR1r3b/N2P1n2/3KR1bN/k3pq1N/2BQBr1B/2N1q3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 g4 Kc5 f4 Kb4 f6 c5 f7 e5 f5 a5 d6 h5 d7 a4 g6 a3 b6 a2 g7 h4 g5 h3 b7 h2 g6 Be7 f8N Bd6 f6 Rh7 f7 Be7 Nh3 Bf6 Be2 Rh5 Nc3 Rh4 Re1 h1Q Rb1 a1R Na2+ Ka5 b4+ Kb6 b5 Ka5 b6 Nc6 b8Q Re4 b7 Ra7 Rb6 Qc7 d8Q Nh6 g8B Bg7 Qe7 Bg4 Bh7 c4+ Kc3 Qd6 d4 Nf5 d5 Qd8 Qd2 Bh6 g7 Ka4 g8Q Ra6 Ng6 Rf4 f8N e4 Nh4 Ne5 Qg6 Rf2 Qge8+ Qd7 Qa8 Nf7 b8N Qg2 Nc6 Qd8 Qab7 Qf3+ Qd3 Rb1 Bf4 Rb4 Bh2 Ka3 Na5 e3 Rc1 Qc7 Rb1 Qd8 Re6 Rd6 Re4 Rbb6 Nc1 Rc6 Qd2 Ra6 Kc2 c3 Kd3 c2 Rb6 Ng3 Ncb3 c1Q Kd4 Qe1 Nc1 Qf1 Re5 Qg1 Bc2 Qe1 Re4 Nf5+
1N2r1kB/1R5N/4b2n/1q1P3B/7B/1p2bRrQ/qNq1B1BQ/b2KN1Rn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kf7 f4 b5 d4 e5 h4 g5 d6 c5 h6 b4 f6 c4 d7 b3 h7 c3 h5 g4 f5 g3 h6 c2 a6 e4 a7 g2 a5 e3 a6 e2 Nd2 Bb7 Nc4 Be7 Bg5 c1Q Nf3 g1Q Nb2 Qcc8 Qd2 Bd6 Bh4 Qdc7 d8N+ Kf8 f7 Qg5 Nc6 Bh2 Rg1 Nd7 Nb8 Ke7 f8R Qe5 f6+ Ke6 f7 Qc2 Ra4 Ke7 Rb4 Bc8 Rb7 Bf4 Qd3 Qec7 Qf5 Nc5 Qh3 Be6 Bg2 Nf6 Qh2 Rg8 h8Q Rg6 h7 Ng4 Qh3 Bc1 Qe5 Ne4 h8B Nef2 Qeh2 Nh1 Bf1 Bf4 Bg2 Ne3 Bf1 Qb1+ Kd2 Qa1 Ne1 Qa2 Bg2 Rg7 Bf3 Kf6 Bh5 Ng4+ Qe3 Qa1 Nc6 Re8 Nb8 Qe5 a8B Qc5 a7 Ng3 Rb4 Nh1 Bf3 Nh6 a8B Qa2 Bg2 Ke7 Baf3 Rg6 Rb7+ Qc7 Bf2 Qb5 d5 Bg5 Bh4 Rg7 Rg8 Rg6 f8N Kf7 Bfg4 Bf4 Nh7 Be5 Qeh3 Bd4 Nd3 e1B+ Kd1 Bb6 Nc4 Bc3 Be2 Ba1 Ncb2 Bc5 Ne1 Be3 Bhf3 Rg3 Rf8+ Kg6 Bg4 Qc8 Rff1 Qc7 B4f3 Kf7 Bh5+ Kg8 Rf3 Qc2+
1nKBq1Q1/r4R1b/1Q2B1BB/3p1RP1/3Nq3/R1bnB2q/1nN3kN/2N3r1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g6 e5 Ke2 Ke7 Ke3 Kf6 Ke4 a5 Kd5 h5 b4 a4 g4 e4 c4 a3 f4 d6 g7 h4 c6 h3 c7 a2 b6 e3 b5 h2 g5+ Ke7 c5 e2 f6+ Kd7 f7 e1N f5 Qe8 f6 Nh6 g8N Ng4 b7 Bh6 f8B Ng2 b6 Ra4 f7 Bg7 Na3 Na6 b8B Nh4 b7 Nf2 Qb3 Rc4 Be3 Rc1 Qb6 Bh6 Ne2 Rc4 Nc1 Nf5 Bd3 Qd8 Rf1 Bg7 Nh6 Qe8 Ng4 h1Q+ Be4 Qg2 Nh2 Bc3 Bh6 Qh3 f8R Rh7 c6+ Ke7 Bb1 Rg4 Rf6 Bd7 c8B Rg1 c7 Ba4 Bd7 Bc2 Kc6 d5 Rf8 Nd6 c8Q Nc4 Rf6 Qf8 Be6 Nb2 Bc7 Qf7 Qg8 Qe8+ Bd7 Rf7 b8N Bh7 Kb7 Rg7 Bg6 Rf7 Rb1 a1Q Be6 Qa2 Ra1 Qc4 Nc2 Nfd3 Ra3 Qe4 R1f5 Rg7 Nd7 Nb8 Ne5 Rf7 Nef3 Rg7 Qb5 Rf7 Bd8+ Kd6+ Kc8 Re7 Rf4 Ra7 Nfd4 Ke5 Qb3 Qh1 R4f5+ Ke4 Rf7 Q1g2 Nf1 Qgg4 Qb6 Qf4 Ndb3 Kf3 Nbd4+ Kg2 Nh2 Qe4
r1kB2R1/3n3K/1QB1r2R/qBp4R/3NQQ1Q/4bR1P/2N2r2/1nQb1qb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 g5 Ke4 c5 Kf5 a5 d4 g4 e4 g3 b4 g2 d6 a4 d5 f6 Kg6 f5 b6 f4 b5 a3 e6+ Ke8 d7+ Ke7 b7 f3 h6 f2 b6 a2 h7 Nf6 e5 Qc7 d8R Ne8 Bb5 f1Q Ne2 g1R+ Bg5+ Nf6 Qc1 Bg7 Nd4 Qf3 Na3 Rg3 Rg8 Qb3 Nac2 Na6 b8Q Qe3 b7 Bf8 d6+ Kd8 d7 Qf4 h3 Rc3 Rf1 Rd3 Rf3 Nb4 Qa7 Rb3 b8Q Nd5 Qab6 Re3 Rb1 a1B Rb2 Nb4 Ra2 Nd5 Ra6 Nc3 Bh4 Ke7 d8R Nb1 Rd5 Qd8 Q8c7+ Bd7 Bc6 Ke8 e7 Re2 Bg5 Rf2 Bb5 Bc6 Qd6 Nd7 Qf6 Qd2 Qf4 Qa5 Bh4 Nb8 Bg5 Qd6+ Bf6 Kd7 e8B+ Kc8 e6 Bh6 e7 Nd7 Rh5 Bd5 Bc6 Bc4 Bb5 Be2 Bc6 Bd1 Bb5 Nb8 Bec6+ Qd8 e8Q Nd7 Qe7 Qf8 Qee4 Bc3 Bg5 Bd2 Bd8 Be3 Rg7 Rg8 h8Q Qf7+ Kh7 Re8 Qa3 Qf6 Rg8 Re6 Qc1 Qf8 Qhf6 Bg7 Q6g5 Be5 Qfh4 Bh2 Qgf4 Bg1 Ra7 Nb8 Rag7 Nd7 Rg6 Qf6 Rgh6 Qg5 Qf6 Qg2 Qff4 Qf1
B2r1K1Q/3r1Q1R/n2B3B/P1b3Q1/1Q1N1R1N/1bnp2Nr/kq5B/4n1Bq w - - 0 1 illegal: No possible last move
1B1N2R1/b1nn4/N1q3n1/p1qQ1B1Q/k2rNB2/1r5K/b1R1P1bB/R2B1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg2 f5 b4 a5 h4 c5 d4 g5 b6 f4 d6 Kc6 b7 Kb5 d7 f3+ Kh3 f2 h6 c4 h5 c3 h7 c2 h6 Ra6 e6 Qc7 d8R Nd7 b8B Qc4 e7 Qc3+ Nf3 Ra8 e8B Qb2 d5 Bd6 Nbd2 Qc3 Ne4 Bc5 d6 Ne7 Bf4 c1Q Qd5 Ng6 Bg2 Qf6 Nh2 f1B Rg1 Rf8 h8Q Qc2 Rc1 Ka4 h7 Ba7 b5 Qc5 b6 Ba6 b7 Bc4 Rh1 Ba2 Rc2 Rg8 Bf7 Rg7 Rg8 g4+ Kg3 Qe6 Bh3 Bg2 Ra1 Bf3 Nf1 Qe8 Kh2 Qec8 Be6 Q8c6 Bf5 Rf7 Bg2 g3+ Kh3 Re7 Qhe5 Re8 h8B Rd8 Bh1 g2 Bg7 Nf6 d7 Ne8 Bf8 Nc7 Bd6 Re8 d8N g1N+ Kg3 Re7 Qh8 Rd7 Qh5 Bg4 Kh2 Nf3+ Kg2 Nfe5 Kg3 Bf3 Kh3 Rf7 Bh2 Nd7 Bdf4 Rg7 Neg3 Re7 Rb2 Bb6 Ba7 Qa3 b8N Qac5 Na6 Re4 Rd2 Rb8 Rb2 Rb7 Bb8 Ba7 Bg2 Rd4 Bc2+ Ka3 Bd1 Be4 Rc2 Rb3 Bf3 Ka4 Bg4 Bh1 Bf5 Bf3 Ne4 Bg2+
bkq3RN/1Bnq4/2RQ3P/6qn/RB1rQ1r1/pBbnN1B1/3B2K1/3N2N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 b4 g5 e4 c5 d4 Kc7 h4 a5 e6 f5 d6+ Kb7 e5 f4 e7 a4 e8N f3 e6 c4 d5 c3 e7 c2 b6 g4 b5 Ra7 d7 Bg7 h6 Ra8 d6 Nf6 h5 Ng8 h7 Ra6 h6 Bf6 Ng7 Qe8 d8Q Bc3 d7 Ra7 Qd6 Bb2 Bd2 c1Q Bg2 Nf6 Nc3 Qf7 e8B Na6 Nf5 Nb4 Q8e7 Rg8 h8N Nh5 Nd1 Bc3 Nfe3 g3+ Kf1 Rg4 d8R+ Bd7 Qe4+ Bc6 Ra8 Qd7 Bf7 f2 Rg8 Ra5 Bb3 Nd3 Rh4 Qc2 Rc1 a3 Bf3 Ra4 Kg2 Qb2 Rc2 f1N Rc1 Qc8 Rc2 Ka8 b7+ Ka7 Rc1 Rd4 b8B+ Ka8 b6 Qa1 Kh3 g2 Bc7 Qb1 b7+ Ka7 b8B+ Ka8 Nc2 Ne3 Ba5 Nd5 Bb4 Nc7 Nce3 Qa2 Bc2 Qae6 Bb3 Qed7 Rc2 Ba1 Rc1 Bd5 Rc6 Bc3 Qde7 Ne8 Bg3 Nc7 Qd6 Kb8 Be2 Ne1 Ba6 Nd3 Kh2 Qe6 Bb7 Qd7 Ne2 g1Q+ Kh3 Qf2 Ng1 Qff5 Kg2 Qg5 Qf3 Rge4 Rc4 Qgg7 Ba8 Re8 Ba5 Ree4 Rc5 Bb7 Rc6 Qg5 Qg4 Rd5 Qge6 Ree5 Ra4 Re4 Bb4 Rg4 Qe4 Rd4 Rc4 Ba6 Bd5 Bb7 Bc6 Ba8 Bb7 Qh4 Rc6 Qg5
4n2b/qrQ1Q2B/k3nBNP/B2R3N/Q1qB3p/r2b1BqR/3N3K/1b5N w - - 0 1 illegal: No proof kernel
kN2B1R1/B1B3N1/2rRPq2/2Q2b2/4Rn1b/BBpqKbN1/Q2Nn3/r3n3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 e4 g5 d4 a5 h4 f5 b4 c5 h6 Kc7 e6 Kb7 e7 a4 e8B g4 e5 a3 b6 c4 d6 g3+ Ke3 a2 d5 c3 h5 g2 d7 Nc6 b5 Be7 h7 Bf6 h6 Na7 d6 Bh4 Ne2 g1N Qd5+ Kb8 b7 Qa5 d8B Bg3 d7 Bh4 Nd2 Qc7 Ba3 Qc6 Qc5 Qg6 Re1 a1Q Ng3 Nc6 Bc4 Nd4 Bb3 Ndf3 Rh2 Qb6 Bc7+ Ka7 b8R Qd1 d8N Ne2 Ne6 Ne7 Ng7 Ng6 Rg2 Bd7 Rd8 Ngf4 Rgg1 Rf8 h8Q Rf6 h7 Rc6 Qg8 Qb1 h8B Qd3+ Kf2 Bc8 Rd6 Kb7 Rg2 Ra5 Qe6 Ka8 Qd5 Qa6 b6 Bb7 Bb2 Ra1 e6 Qac4 Ba3 Qcd4+ Kf1 Qf6 Kf2 Nc1 Re5 Ne1 Re4 Nce2 Rg1 Ng6 Rg2 f4 Qdc4 f3 Q4d5 Qb1 Ke3 f2 N7h5 Qd8 Ba4 Qf6 Re5 f1B Qb4 Qc1 Nf5 Rc5 Qa2 Bf3 Bb3 Ngf4 Rg8 Qf7 Nfg3 B1g2 Re4 Bg4 Bd4 Qc2 Ng7 B2f3 Qb5 Bf5 b7+ Ka7 b8N Ka8 Qc4 Rc6 Ba7 Qf6 Qc5 Qd3+
1K2R3/NBrRn2q/1BPbqB1N/3Q2q1/Q3b3/1B2n1k1/1Brn1p1R/4Q2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 h4 a5 b4 g5 e4+ Kg3 c4 f5 e6 a4 h6 d6 e7 f4 e8R f3 c6 f2 b6 g4 b5 a3 c5 a2 c7 Qd7 h7 Ba6 c8B Qg7 b7 Nd7 Kc6 d5 Kc7 d4 b8Q d3 e5 d2 e6 Qh6 b6 Be7 h5 Qf6 b7 Ra7 h6 Qd4 c6 Bf8 e7 Ngf6 Qa8 Bg7 Nc3 Bf8 Nh3 Bd3 Ng5 Ne4 Bb2 Bc4 Rh2 Rg8 h8Q Bd3 h7 Qf6 Nb5 Rg7 Nf7 Ne5 Kb8 Ng6 Nh6 Qe6 Rc1 Ra4 Na7 a1Q Rc5 Qc1 Rd5 Ra2 Rd7 Qb1 Qb3 d1N Qd5 Bc2 Bc4 Nd2 Bb3 Be4 Qg8 Bh1 Bf6 Qee4 Red8 Qbd3 e8Q Bd6+ Rc7 Rc2 Nb5 Kf4 Bb2 g3 h8B Rd7 Bhf6 Ne5 Qa4 g2 Na7 g1Q Qg2 Ng6 Qee6 Ne7 Re8 Qe2 Qf1 Qg8 Qg1 Bf3 Qh1 Kg3 Qee5+ Qf4 Qee4 Qd3 Qee1 Qgh7 Ka8 Qff5 b8B Be4 Rb7 Qe6 Bc7 Qe3 Bb6 Qg5 Rc7 Bc5 Kb8 Ne3 Bb7 Bb4 Rcc8 Rc7 Rcd8 Bc5 Rd7 Bd6
NR1Q3r/Q4rK1/Q1P2B2/6Rq/nqbRQ2r/1R2pN2/Q2b1nb1/2kB1N2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 d5 h4 g5 c4 a5 b4 a4 f4 g4 h6 a3 h5 a2 c6 e6 h7 g3 h6 g2 b6 Ra3 c7 Bb7 c8N Ra7 c5 Ra5 b5 Ra3 c6 Ra6 Nf3 g1R Qc2 Be7 Rh4 Rg4 Qe4 Rg5 Nbd2 Bd6 Be2 Nd7 Bb2 Ne7 Bd1 Bb4 Nf1 Rgg8 Rb1 a1Q Rh5 Be1 Rg5 Bd2 Bc3 Qa2 Rb3 Qb1 Bb2 Rf8 Bc3 Ba8 b7 Ne5 b8R Nd3 b6 Nf2 b7 Qe8 Nb6 Qh5 Rd8 Ra7 b8R Bb7 Na8 Nc8 Rd7 Nb6 Rd6 Kf7 Ke5 d4 f6 d3 f5 Ba6 Rd4 Na4 Ba1 Bc4 Bb2 Rhg8 h8Q Rb7 h7 Rb4 Kd6 e5 Bc3 Rc8 Ba1 Rgf8 Qg7+ Ke8 h8Q Kd8 Qf4 e4 f7 e3 Ke5+ Ke7 Qe4 Qb2 Qhh7 Rh8 Qd5 Rcf8 Qb5 Qb1 Qa6 Qb2 Kf4 Qc3 f6+ Ke6 Qhg8 Rb6 Q8h7 Qb4 Bb2 Rb5 Qgg8 Rd5 Qe4+ Kd6 Bc3 Kc5 Ng3 Qa5 Re5 Rd8 R3b7 Qh6+ Kf5 Bb3 Bc2 Bc1 Ba1 d2 Nf1 Qh3+ Kg6 Ba2 Rb2 Qb4 Kg7 Qf5 Rb6 Rh4 Rb8 Qg4+ Rg5 Rf5 Qee8 Rc8 Qe4 Qh5 Bd1 Bd5 Rd3 Be6 Rbb3 Bd5 Qd8 Bc4 Qd7 Rh8 Rb1 Bb5 Bd4+ Kc4 Qc7 Rff4 f8Q Rf5 Qfc8 Rff4 f7 Rf6 f8Q Rff4 Qfd8 Rff8 Bc2 d1B N3h2 Bg4 Bd1 Bh3 Nf3 Bd2 Rb2 Bg2 Rb1 Qb3 Qce6+ Kb4 Be5+ Ka3 Rd4 Qb4 Bf6 Bd3 Qca7 Bb5 Rc1 Kb2 Rc3 Be2 Ra3 Kc1 Qa2 Bc4 Rb3 Rf7+
N3n1q1/2bBB3/q1P2rQ1/2rk2K1/4RQB1/1n1pbq1R/1B2N3/1bRB1N1N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 e5 g4 d5 f4 a5 c4 h5 b4 e4 b6 a4 b5 a3 b7 h4 c6 a2 c7 h3 f6 Ke6 f5+ Ke5 g6 h2 f7 Bh6+ g5 Nc6 f8N Bd7 b8Q Ra7 c8B+ Qc7 b6 Nge7 b7 Kd6 Kf4 d4 g7 d3 g8N e3 f6 e2 f7 e1B Bh3 Bh4 Bb2 Be1 Nf6 Be8 Ng4 Bc3 Ne2 Nb4 Nd2 Ba4 Nf2 Ng8 Qg1 Ra5 Ne6 Bc6 f8B+ Ne7 Nf1 Na6 Bg4 Nc5 Rc1 a1Q Bd7 Nb3 Qg3 Re5 c5+ Kd5 Qg1 Ba4 c6 Nf5 Be7 Qd8 Nc7+ Kc4 Qg2 Rc5 Na8 Qg8 Qe5 Ng7 b8R Rh7 Re8 Qa3 Qf6 Qa2 Qg3 Kd5 Qg6 Ba5 Qe3 Nh5+ Kf5 Nf6 Qf4 Bb6 Bd6 Qa1 Re4 Bc7 Be7 Qa3 Qe8 Qa2 g6 Rf7 g7 Rf8 Qg6 Ne8+ Qf6 Bg5 Kg6 Qa1 Kh5 Bh6 Qg6 Rf6 Kh4 Nd2 Kh5 Bc2 Kh4 Nb3 Kh5 Qe6 g8B Bb1 Bf7 Qa6 Kh4 Bg7 Kg5 Bh8 Qh6 Bg7 Bfh5 Qg8 Qg6 Bf8 Rg1 h1Q Rg3 Bg7 Rh3 Qf3 Nh1 Rf8 Rg3 Bd4 Rh3 Be3 Ng1 Qf2 Bd1 Qg3+ Bhg4 Qf3 Ne2 Rf6
R1BR4/3nQrB1/rP2R1RR/rQ4b1/1pKN1qqB/7n/1kqQ3Q/5bN1 w - - 0 1 illegal: No possible last move
n1R1r3/kr1N2BN/1p1b1QKn/r7/1Q1N2qQ/N2NR1PR/3q3n/2QB1b2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 e5 Ke4 c5 a4 Kc7 f4 h5 d4 h4 g6 h3 f6 h2 g7 c4 f7 b6 g3 Kb7 d6 c3 a6+ Ka7 d5 c2 d7 Nf6+ Kf5 e4 g8R e3 a5 e2 d6 e1Q Nf3 Rh6 Be2 Nh7 Ra3 Rg6 Re3 Be7 f8N Rh6 Ne5 Rg6 Nd3 Rg4 Bb2 c1N Na3 Qg1 Bg7 Ng5 Kg6 Rh4 f5 Rh5 f6 Ne6 f7 Nb3 Nh7 Bf8 Qc1 Nc7 Bd1 Be7 f8N Nc6 Rh8 Bb7 Rg8 Qc8 d8N Qf2 d7 Bd6 Nde6 Nbd4 d8Q Qd2 Nd7 Nf3 Qf6 Nd8 Nd4 Nf7 Rge8 Rb8 Qh4 Nh6 Rd8 Ka8 a7 Ba6 Rh8 Qg8 Qf6 Qc4 Rc8 Re5 Qh4 Re8 Qf6 Kb7 Qh4 Bb5 Qf6 Ka6 Qh4 Rb7 a8Q+ Ra7 Qc6 Na8 Qc5 Rb7 Qb4 Ka7 a6 Qg8 Rf1 h1R Rg1 Rh2 Rh1 Rg2 Rh3 Nh2 Nb1 Qe6+ Kh5 Qe4 Nf3 Qf2 Nd3e5 Bf1 Nd3 Nc7 Kg5 Qc4 Kg6 Qfc2 Qc3 Rf2 Qcf6 Qe6 Nd4 Rf5 Na3 Qd2 Nb8 Ka8 Nd7+ Rb8 a7 Kb7 Nc6 Ka6 Nd4 Rb7 Qg4 Re5 Qg5 Qg4 a8Q+ Ra7 Qd5 Rb7 Qb3 Ka7 Qbc4 Ra5 Qb4 Qe6 Qh5 Na8 Qh4 Qg4+
2R5/2B1q1Q1/pQN5/1b1P1KbN/2QNRnn1/kb2rN1q/3QR1B1/N5rr w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 g4 c5 f4 e5 b6 h5 g6 h4 f6 a6 g5 c4 b7 h3 f5 h2 f7 c3 d6 c2 f6 Qe7 g7 Qc7 d7 Kb3 d8R Qb6 g6 Qd6 Nd2+ Kb4 Nb3 Bd7 Bf4 c1Q Bg2 Rh7 Ra4+ Kb5 Qd2 Ne7 g8N Qe6 g7 Rh8 Nf3 Nf5 Na1 Qcc4 b4 Nc6 b8N Nh4 Re1 h1B Re2 Qe7 Rc8 Ng6 Bh2 Be8 Kf5 e4 Bc7 Nce5 Nc6 e3 d5 Qc3 Nh6 Ng4 g8N Bg7 f8Q Nf4 f7 Bf6 Qg7 Bg5 f8Q Kc4 b5+ Kc5 Re1 e2 b6 Kb5 b7 Qca3 Rd1 e1R Nf6 Rg1 Re4 Qc3 Re2 Ka4 b8Q Ka3 Rde1 Ra7 Qfg8 Rb7 Nh5 Rb3 Qb6 Qce3 Nd8 Bb5 Nc6 Qd3+ Re4 Qf1 Qgd4 Re3 Qc4 Rh7 Qg7 Rh8 Nfd4 Qf3 Nf7 Qh3 Nfe5 Rh6 Bf1 Bf3 Bg2 Bd1 Re2 Bb3 Nef3 Qg3 Nf6 Rhh1 Nh5 Qh3
1Q4B1/B1Rrqnp1/Q1N1n3/Qb6/r2r4/n1K1kN2/Rb1RP2B/4QQRq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 d4 c5 Kd2 a5 b4 f5 d6+ Ke6 d7 Kd5 e6 Ke4 d5 c4 d6 f4 h6 f3 h7 f2 e7 a4 e8R+ Kd4 h5 a3 h6 a2 b6 Ra3 b7 Rf3 b5 Rh3 b6 Rc3 Na3 Rb3 Nb5+ Kd5 Bh3 f1Q Re7 Qf6 Nf3 Qh4 Na7 Qh5 Rg1 Rb4 Be6+ Ke4 Qf1 Nc6 b8B Ba6 b7 c3+ Kc2 Qc7 d8R Ra4 d7 Bb5 Bf4 Qh1 Bh2 Ke3 Kb3 c2 Rf7 Nf6 Bd5 Rg8 h8Q c1R Qh7 Nh5 Qb1 Rcc4 Qbe1 Ba3 h7 Ba6 h8Q Ne5 Qh6+ Nf4 Qe6 Bb5 Qa6 Bc1 Nc6 Re8 Be6 Re7 Bd5 Qd6 Ba7+ Qc5 b8Q Re4 Rf6 Rec4 Bg8 Ne6 Rff8 Nf7 Rc8 Re4 d8Q Rb7 Qda5 Rc7 Nfd4 Qe7 Rfd8 Rf4 Rd5 Rd7 Kc3 Rh4 Rc7 Rg4 Rb1 a1N Rb2 Nc2 Ra2 Na3 Nf3+ Ke4 Rd4+ Ke3 Rd1+ Rgd4 Rdd2 Bb2+
2nN2B1/bRR2pQ1/2qNbPB1/1Qq1NB1n/rBN1r1K1/B3R2r/5q2/7k w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 f4 Ke7 Kf2 Ke6 Kg3 Kf5 e4+ Ke6 h4 a5 c4 d5 f5+ Kd7 h6 g5 e6+ Kc7 c6 Kd6 e7 Ke5 e8N g4 b6 a4 c5 d4 h7 d3 c7 a3 h5 a2 c6 d2 b7 Qd7 h6 Bc5 Na3 Ne7 Bd3 Rg8 h8B+ Rg7 h7 Ng8 Qe2 d1Q Rb1 a1Q Nd6 Qf1 Nac4+ Kd4 e5 Ne7 e6 Qd1 Ba3 Qd2 Nf3+ Kd5 Rhc1 Qe8 Nfe5 Ng6 e7 Be6 c8B Ra4 c7 Nd7 b8N Ba7 Rb7 Qac3 Nbc6 Nf4 Nd8 Nb6 f6 Qb4 Bg6 Qc6 e8R Qbc5 Kh4 Rg8 Bg7 g3 h8Q g2 Bf8 g1R Qg7 Rg3 Bd7 Re3 c8B Re4 Be7 Qde3 Qb2 Qd2 Qb5 Rh8+ Kg5 Qe2 Bh7 Qb2 Bg8 Rh3 Rc3 Qf2 Rc2 Bg4 Bf5 Kd4 Bcd7 Nc8 Bg6 Be6 Rc3 Bd5 Bdf5 Be6 Kg4 Kd5 Nd2 Kd4 Rc1 Ke3 N2c4+ Ke2 Rc3 Kf1 Bf8 Kg1 Ree7 Ree3 Rec7 Re4 Re3 Kh1 Ne8 Q5d5 Bfb4 Qdc5 Ned6 Nh5+
2R1NBn1/4pBb1/N6N/b1r1Q1qb/3Q1nqR/kP1n1K2/1R2rQ2/2QQ3R w - - 0 1 illegal: No possible last move
Nb1n2bR/3P1NNQ/B7/1q6/NB1n1q2/p2b1QB1/nRr4R/2k1KRrR w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 d4 Kd6 g4 a5 f4 h5 g6 e5 g5 c5 g7 c4 f6 c3 b6 e4 b5 h4 b7 a4 g6 a3 b6 h3 f5 h2 f7 e3 f6 c2 Ba6 e2 Nf3 Nc6 b8R Nce7 b7 Qe8 Nh4 Qb5 Nf5+ Kd7 d6 Kc6 d5+ Kc5 d7 Kb4 d8N Kb3 d6 Nh6 g8R Qa5+ Bd2 Kb2 g7 c1Q d7 Nc6 Nc3 Bd6 f8N Nf7 Nfe6 Qb5 Nc7 Nb4 Rf1 Rh5 Rh8 h1B g8Q Rg5 Ng7 Rg1 Rh2 Na2 Qh7 Bd5 Bf4 Bb3 Bg3 Qf4 Qd5 Ra7 Qf3 Be6 Na8 Bd5 Nde6 Nd8 Ng5 Bg8 f7 Bc7 f8B Be5 Kf2 e1N Bb4 Nc2 Nf7 Nd4 Ke1+ Ne2 Rh1 Nd4 Rd1 Bd6 Rd2+ Kc1 Na4 Bc7 Rdh2 Be5 N8b6 Bd6 Ra8 Be5 b8R Rc7 Rb7 Rc2 Rab8 Bc7 Na8 Be5 Rb6 Bb7 Rbh6 Be4 R6h4 Rc6 Rb2 Bd3 R4h2 Rc2 Nh6 Be6 Rc8 Bb8 Nf7 N8c6 Rh8 Nd8 Nd6 Bg8 Nf7 Qh6 Qf2 Qd6 Qf3 Qf4
2kN2Q1/Qq1p4/1Q1R1N2/3Rbr1b/r2nPBnN/N1KB4/R1q2rR1/6qN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 h4 f5 b4 g5 e4 g4 c4 f4 b6 f3 b5 a4 h6 g3 h7 f2 e6 g2 b7 a3 c6 a2 c5 Qc7 e7 Qd8 h5 Qb6 h6 Ra4 c7 Bg7 c6 Qc5 b6 Qc4 Rh5 Ra6 Bd3 f1Q Rd5 Qb3 Na3 Bf8 Qg4 Qf6 Ne2 g1Q Ng3 Qgf1 Nh1 Kf7 e8N Qd8 Nf6 Qbd1+ Kc3 Ke7 Bf4 Ra4 Rd6 Na6 b8Q Nc5 b7 Bg7 Qa7 Nb3 b8Q Nd4 Qbb6 Ba6 c8R Qg1 c7 Bc4 Rb8 Bf7 c8R Bh5 Rc5 Qc7 Ra8 Qb8 Rcd5 Qb7 Rb1 a1R Rb2 Ra2 Rg2 Rf2 Qg5 Kf7 Qg3 Ne7 Qg4 Nef5 Qg3 Re8 h8N+ Ke7 h7 Nh6 Nf7 Rf8 h8N Ng4 Nd8 Qb1 Ne8 Be5 Nf6 Nh2 Qg8 Ng4 Nhf7 Qa2 Ng5 Qab1 Nf3 Qbd1 Ne8 Rf5 Nf6 Rb2 Qaa5 Qb8 Nh4 Rab4 Nb5 Rf2 Ne6 Qb7 Ra6 Qe2 Qa7 Qed1 Q5b6 Qb1 Ra2 Ra4 Na3 Qbd1 Nc7 Qb1 Qg5 Kd8 Ne6+ Kc8 Nd8 Qbd1 Qg8 Qc2+
2N4b/1nPNN2K/6r1/2NRQB1p/3qrB1Q/RqnB2n1/4Nk2/2R1bb1B w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 g4 h5 b4 a5 c4 e5 f4 a4 f6 Kg6 f7 a3 f5+ Kh7 c6 a2 c5 d4 Ke4 d3 g6+ Kg7 c7 Kf6 b6 d2 b7 Kg5 b5 Be6 c8N Qa5 c6 Qc7 b6 Qd6 f6 Nh6 g7 Be7 g8B Bd7 f8R Be6 f7 Bf6 Qe1 Na6 b8Q Qe7 b7 Bg7 Rd8 Qf6 f8N Bc4 Bh7 Bg8 Nd7 Nf7 Ne2 Qe6 Bf5 Rh6 Nc5 Rg6 Nbc3 Nh6 Nd5 Bh8 Nde7 Qb3 Rd5 Bf7 c7 Be8 Qa7 Bb5 b8N Bc4 Rg1 Bb5 Rg3 Kh4 g5 d1N Bf4 Bc4 Rb1 a1Q Rc1 Qab2 Nbd7 Nc3+ Ke3 e4 Qb6 Ng8 Qd6 Nf6 Qe5 Bb5 Kd4 e3 Bg2 Rb8 Bh1 Nfe4 Qf2 Rbb6 Qe1 Rge6 g6 Rbd6 Rf3+ Ng3 g7 Rg6 g8B Rde6 Bh7 Bd3 Ng1 e2 Qf2 e1B Ne2 Bb5 Bd3 Rg4 Bhf5 Reg6 Qg7 Qa1 Ke5 Qaa4 Re3 Kh3 Qf6 Qd4+ Ke6 Bc4 Kf7 Bb5 Qe5 Kh4 Na4 Nc5 Rf3 Nb7 Nac5 Bg7 Kg8 Bh8+ Kh7 Bc4 Bd2 Re4 Bf4 Qb2 Bd2 Nd1 Nf4 Kg5 Bc2 Bf1 Qh2 Qb6 Ra3 Qb3 Bd3 Nc3 Ne2+ Rf4 Bfe4+ Kg4 Be3 Bg2 Bf5+ Kf3 Qh3 Re4 Bf4 Kf2 Qh4 Bf1
4Q3/p2Q3n/N4nrN/1R1B1NNn/Q1BB2q1/q3K2R/qbb2rPB/4B2k w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 b4 Kd6 d4 h5 f4 c5 f6 e5 f7 c4 f5 h4 f6 c3 g6 e4 g7 c2 b6 e3 b7 h3 b5 h2 b6 Rh5 Nh3 Rh4 Nc3 Qe7 Rb1 Qe5 Bb2 c1Q Qa4 Rf4 Nd1 Nc6 b8B+ Kd7 b7 Nh6 g8B Ng4 d6 Ke6 d7 Kf5 d8Q Nb4 d5 Qe6 d6 Qa2 d7 Bg7 f8Q Nd5 f7 Ndf6 Ng5 Nh7 Qfe8 Ngf6 f8B Kg4 Bd5 Kg3 Bb4 Qc5 Bd2 Qca3 Bd4 Bh8 Rb3 Bg7 Kd3 e2 Ne3 e1Q Bc7 Qea1 b8N Qd1 Na6 Qg4 Qde7 Rb8 d8N Rb6 Ndf7 Rd6 Q8d7 Rf2 Qee8 Bb7 Be2 Ba8 Rb1 h1N Be1 Kh2 Nf5 Ng3 N7h6 Ngh5 Ke3 Kh1 Bec4 Rb6 Bh2 Bh8 Be6 Be4 Bed5 Bc2 Rd3 Ng8 Rb5 Rg6 Bb6 Bb2 Bd4 Rf1 Kd2 Ngf6 Rh3 Qb4+ Ke3 Rf2 Qdc8 Qd6 Qcd7 Qda3+
rrk1NR1b/Q1B1RN2/2nKrN2/Q1rNQPN1/3R4/r2p4/n1b5/Qq3B2 w - - 0 1 illegal: No possible last move
1nQr4/NN6/1QnB1Bb1/1rBB1p1k/1bN4b/1b2bN1R/4P2q/NQK1R3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 h5 Kd2 c5 b4 f5 g4 Kf7 g6+ Kg7 g5 a5 e6 c4 e7 h4 d6 a4 d5 a3 d7 h3 d6 a2 b6 h2 b7 Qa5 d8N Na6 b8B Rh5 e8N+ Kh8 d7 Be7 g7+ Kh7 g6+ Kh6 Nd6 Qe5 b5 Nb4 b6 Kg5 b7 Nc2 Bg2 Kh6 Bd5 Nd4 Ba3 c3+ Kc1 c2 Nd2 Rh3 Bc5 Nc6 Ngf3 Nf6 g8Q Kh5 g7 Qg3 Re1 h1B Qe6 Qh2 g8Q Bf8 Rb1 a1B Rb3 Ra5 Ra3 Rb5 N6c4 Rh4 Nb3 Rd4 Qd3 Be7 Qee3 Bc3 Bbd6 Bb4 b8N Bg2 Na1 Bh3 Qg7 Bg4 Nb7 Bd8 Rc3 Be7 d8B Nd7 Qd1 Bh4 Qf8 Rd3 Bf6 Rd4 Na6 Ndb8 Nc7 Be6 Qc8 Bf7 Qdd3 Bg6 Ra3 Bh3 Qb3 Bg2 Qb1 Rd3 Kb2 c1B+ Kc2 Rb6 Nb5 Rd4 Qg1 Be3 Na7 Rd2+ Kc1 Rb5 Nd4 Be4 Rb3 Bc2 Rc3 Bef2 Rh3 Bb3 Nf3 Be3 Bf8 Bg5 Bcd6 Bh6 Qb6 Bf4 Bc5 Be3 Bfd6 Qh1 Bc7 Bd4 Be4 Qh2 Bce5 Bf2 Bg3 Rd7 Bd5 Rd8 Bgd6 Be3+
B1Bnrr1b/2KR1QRr/2B5/PQB4r/1Q1pNr1k/N2B1b2/3N4/2q3Nn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 b5 Kd5 g5 f4 e5 c4 e4 h4 b4 a4 e3 h6 g4 h7 b3 h5 b2 h6 g3 c6 d6 c5 e2 c7 e1R c6 g2 a6 Re8 a7 Re1 a5 Qe7 Qd3 Re2 Qb5 Qd7 Na3 b1R Be3 Ra2 Bd3 Ba6 c8B Rb4 c7 Ra4 Bc5 Qe7 Bd7 Rb4 c8B Rd2 Bc6 Qb7 Rd1 Kf7 f6 Qc7 f5 Bg7 Rh3 Rdb2 Rg3 Rf4 Rg4 Re2 Rd2 Kf8 f7 Ke7 f8N Kf6 Ng6 Re6 Ne5 Bb7 Nec4 Re8 Rd1 Rf8 Nd2 Re8 Re1 Rf8 Re7 Re8 Rd7 Rf8 Rh4 Kg5 f6 Ne7+ Ke6 d5 f7 d4 Rg4+ Kh5 Rg3 Be5 Rg7 Kh4 Qb4 Re8 f8Q Nf5+ Kd5 Ng3 Qf7 Rhf8 h8Q Nh1 h7 Re7 Qhg8 Rfe8 h8N Bf6 Ne2 g1R Qb5 Rg6 Ng1 Rh6 Qff8 Rh7 Nf7 Rh5+ Ng5 Be5 Nge4 Bf6+ Rg5 Reh7 Qgf7 Bh8 Qd6 Na6 Qde7 Nb4+ Ke6 Rb8 a8B Rf8 Bd5 Nc6 Rg7+ Rg5 Qd6 Nd8+ Ke7 Rgh5 Qdb6 Rff5 Bc6 Qf4 Qb4 Qf1 Kd6 Qc1 Kc7 Rf4 Ba4 Bd5 B4c6 Re8 Q6b5 Rf8 Ng5 Bf3 Nge4 Rb6 Bd5 Re6 Bdc6 Ree8
1R1N4/1b2B1k1/b2bRp2/1NR1RPb1/2q1R2K/Q5BB/2Q1bnrN/nr5B w - - 0 1 legal: proof: d4 b5 h4 c5 a4 e5 axb5 g5 hxg5 c4 dxe5 c3 bxc3 Ne7 c4 Ng8 c5 Be7 Nf3 Bd6 Ng1 Bf8 g4 h5 c4 d5 e4 a5 f4 f6 Kf2 Kf7 Kg3 a4 g6+ Kg7 g5 a3 b6 d4 b7 a2 c6 d3 f5 d2 e6 Ra4 c7 Ra5 c5 Ne7 e5 Nec6 e7 Nb4 e8N+ Kg8 c6 Qd6 g7 Ra6 Nf3 Nc2 Nh2 Rh7 Nc3 Qb4 e6 Rb6 e7 Rh6 Bh3 Bd7 c8R Na3 c7 Nc4 Qa4 d1B Qa3 Bb5 Nd6 Rh8 e8R Nc6 b8B Be2 Re6 N4e5 Nf7 Nd4 Nd8 Ng4 Kh4 Ba6 Nb5 Nf2 Re1 Qc4 Rb1 a1B Rb4 Kh7 g8B+ Kg7 g6 Nb3+ Bf4 Bd4 Bd6 Rb7 Be7 Na1 Re5 Rh7 Bd5 Be3+ Be4 Bf4 Bh1 Rh8 Ra4 Rg8 Rb4 Qb3 Rbe4 Qc4 Nc3 Rb1 Nb5 Kh8 Re6 B8h6 g7+ Kh7 Ba7 Bd6 Bd4 Bhf4 Be5 Kh6 Rb8 Kh7 c8R Bg5+ Kg3 Kh6 Rc5 h4+ Kg2 Re8 g8Q Rf8 Qf7 Rg8 Qh5+ Kg7 Bg3 Bd3 Qd1 Be2 Qc2 Bgf4 Bg4 Bg5 Be5 h3+ Kg3 Bh6 Kh4 Bf4 Nf3 h2 Bh3 Be3 Bg3 Bc1 B1g2 h1B Nh2 Be3 Bf1 Bhf3 Bfg2 Bef4 R4e5 Bfb7 Bh1 Bc1+ Re4 Bd2 Rd1 Be3 Rdd5 Bef4 Rde5 Be3 Bg4 Bg5+ Kh5 Kh8 Bf4 Bh6 Kh4 Rg7 Bh3 Rg2 Bg3 Kg7 Qab3 Be3 Qa3 Bg5#
4R3/RQ2Q3/4pB1B/n2Qr3/Kr2Br1N/1r1P2B1/2RnQ1bb/1kqQ1rN1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 f4 Kd6 h4 a5 f6 g5 f5 Ke5 d6 Ke4 b6 c5 f7 a4 h6 e6 d7 a3 d3+ Kd4 Kd2 a2 Kc2 c4 h5 c3 Kb3 g4 b5 g3 h7 c2 b7 g2 b6 Qg5 d8Q+ Bd6 f8R Ra5 f6 Qg4 f7 Qh3 h6 Re5 Re8 Rd5 f8Q Bh2 Qfe7 Qe3 Nd2 Nc6 b8Q Bb7 Ka4 Kc3 Ndf3 Nf6 Nh4 Re5 Qd5 Rf8 h8Q Na5 h7 Ne4 Qe2 Ba8 b7 Rf4 Qg8 Qd2 h8B Qe1 Be3 Kb2 Qgg4 Qc1 Bf6 Nd2+ Kb5 Rc4 Bh6 Rc3 Ka4 Rb3 Ngf3 g1R Bg2 Re1 Ng1 Rf1 Be4 Rf4 Qgf3 Qf1 Qbc7 c1R b8B Rb1 Qcb7 Qc1 Qg4 Bg3 Rh2 Kc2 Rg2 Bh2 Ba7 Kb2 Bf2 Kc2 Bg3 R1b2 Rb1 a1R+ Qa3 Rf1 Qef3 Rc3 Qb8 Raa2 Qc6 Nb7 Bh7 Rbb5 Rb4 Na5 Rd4 Kb1 Rd7 Rcb3 Ra7 Ne4 Qd1 Rd2 Qe7 Rdf2 Qc4 Bd5 Qbb7 Rff5 Rc2 Nd2 Qge2 Bg2 Qcd5 R5f4+ Be4 R5b4+
3nr1K1/b1Bb1N1P/1b1N1Rn1/k3b2Q/4Q3/1rp4b/1qN2RB1/N1QQB2N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 Kc7 e4 Kb6 h4 f5 d4 a5 b4 c4 d6 c3 h6 g6 d7 a4 h7 a3 d5 a2 h5 Bg7 d6 Qf8 Kg5 f4 d8Q+ Ka7 e6 f3 d7 f2 e5 Qc5 h6 Qc4 e7 Bb7 e8N Bc8 b6+ Ka6 b5+ Ka5 b7+ Qc7 e6 Qb6 e7 Bf8 Bd2 Nc6 b8B Nd4 Qc1 Bb7 Bg2 f1B Na3 Ra7 Be1 Bd5 Nc2 Bg7 Bc7 Ra8 Nd6 Be6 e8Q Ra7 Rh2 Ne7 Ne2 Bd5 Ng3 Rb7 Nh1 Be5 Rb1 Be6 Na1 Rf8 h8Q Ndc6 h7 Rg8 Kh6 g5 Qh5 g4 Qg7 g3 Qgg4 Rb8 Qe4 Re8 Rb2 Bf5 Rf2 Ng6 Rh4 Bh3 Rhf4 Bc4 R4f3 Bce6 Rf6 Beg4 Kg7 Rb7 Nc2 a1B Kf7 Bb2 Na1 Ba3 Kg7 Re6 Kg8 Bc5 Bb8 Qc7 b6 Qc8 Bc7 Re8+ Kf7 Rb8 b7+ Bb6 Kg7 Ra8 b8N Qb7 Na6 Rb8 Nb4 Be6 Bf3 g2 Nbc2 g1B Bg2 Bef5 Qc8 Bfg4 d8N Bd7 N8f7 Nd8 Qhd1 Qc6 Qb7 Qb5 Qh4 Qb2 Qbe4 Ka6 Qhg4 Ba7 Qh5 Rb3 Rf3 Bgb6 Rf2 Re7 Kg8 Ka5 Ng3 Re6 Nh1 Re8+
4bBNq/6p1/2R3r1/2nRN1Pn/1nBNb1KB/2QN3B/3nn1rR/1k4BQ w - - 0 1 illegal: No proof kernel
3nQ2b/n1BPpN1k/R1Nq4/nQ5b/2Q4R/rN1R1N2/R1r2nn1/KB4N1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 d4 a5 Kd2 g5 Kc3 Kg7 Kb2 c5 h4 g4 f4 a4 f6+ Kh6 d6 c4 f7 g3 f5+ Kg7 d5 g2 b6 Bd7 b5 Ra5 b7 Kh7 f6 Bg4 h6 Ra6 d7 Bf5 b6 Bh3 d6 Bf5 h5 Ra7 Qe2 Bg6 Bf4 Qe8 d8R Nc6 b8N Rc7 b7 Be4 Nd2 Bc2 Nb3 Rc8 Rh4 Na7 Ra2 c3+ Ka1 a3 Nc6 Bd1 b8Q c2 Qc4 c1N Qbb5 Bg7 f8R Qg6 Bd3 Ne2 Bb1 Rc7 Be5 Nf4 f7 Rc8 Rfe8 Qd3 f8Q Be2 Nf3 g1N Qff7 Ngh3 Ng1 Bg4 Rd7 Rc7 Ra8 Nf2 Qe8 Ng2 Rdd8 Nc8 Ra6 Na7 d7 Qg6 Ra8 Bf3 Rd2 a2 Rd3 Rc8 Qd4 Be2 Bc7 Qd6 Qc3 Nf6 Qcc5 N6g4+ Qc3 Ne5 Qc2 Rg8 Qcc4 Kh8 h7 Nf7+ Qe5 Bf6 Qb2 Kg7 h8N Kh7 h6 Nd8 Nf7 Bh5 Nfe5 Bh8 Nef3 Rg5 Qf8 Ra5 Qe5 Kg6 h7 Ra3 Qb2 Bg7 h8N+ Kh7 Qe5 Bf6 Nf7 Bh8 Kb2 a1N Qe8 Nc2 Qb5 Nd4 Qe6 Nb7 Qed5 Na5 Qdc4 Ne6+ Nbd4 Rc3 Ka1 Nd8 Nb3 Rb8 Nbd4 Nc8 Qb2 Rbb3 Rb6 Nab7 Ra2 Rc2 Rba6 Ra3 Qbb3 Na5 Qbb5 Rb2 Nb3 Na7 Qcb4 Rc2+ Qd4 Rc3 Qdc4 Rc2+
r4b1Q/nP4p1/K1R1rN2/1r4B1/B6r/Bb1n1Q2/kNB1rR2/NRq2NN1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 e4 f5 Ke2 a5 Kd3 c5 Kc4 f4 d4 f3 b4 f2 d6+ Ke6 d5+ Kd7 e6+ Ke8 d7+ Ke7 d6+ Kf6 e5+ Kf5 e7 Ke6 e8N a4 h6 a3 h5 a2 h7 Ra6 b6 Ra7 Kb5 c4 b7 c3 h6 c2 Nd2 Kd5 e6 Ra4 e7 Ra7 Qf3+ Kd4 Rb1 a1R Rh2 Nf6 Ba3 c1R Bd3 Kc3 Nf1 Ra4 Bc2+ Kd4 Rg2 Nd5 Nf6 Rg8 h8N Nc6 b8R Qc7 e8B Qd8 h7 Nb6 Ng6 Rh8 Ne5 Re1 Nc4 Re6 Nb2 Nc4 Rb6 Qc7 d8N N4e5 d7 Ra8 Nb7 Ra2 d8B Na7+ Ka6 Nd3 Bea4 Kc3 b5 Qf4 Rd6 Qc1 b6 Bd7 Na5 Bb5+ Kb7 Bc4 Nb3 Bd5+ Rc6+ Bc4 Nh2 f1R Rf2 Rfe1 Bde7 R1e5 Na1 Rc5 Nf1 Rb5 Bac5 Bb3 Ka6 Rd8 b7 Rd4 Bd8 Rh4 Be3+ Kb4 Bg5 Rg8 h8Q Ka3 Nd1 Rb2 Be7+ Ka2 Ba3 Bb4 Nde3 Ra8 Nc4 Bc5 Bd1 Rc2 Nb2 Rce2 Bc2 Bf8
Rb3b2/2nR3b/1KN2B2/QnN1n3/1R1rbB1r/B1q1N1Bp/1P1kB1N1/5Q2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Ke3 c5 d4 h5 g4 a5 e6 Kd6 e7 f5 e8Q h4 b6 h3 g6 a4 g7 a3 b7 a2 g5 c4 g6 c3 Nf3 c2 Qb5 Ra4 Ne1 Ra7 Na3 Bd7 Ng2 Qa5 Nc4+ Ke7 d6+ Kf6 d5 Kg5 Kd4+ f4 Kc5 Qa3+ Kb6 Rh6 e4 Ra4 e5 Be7 e6 Nc6 b8B Rb4 Be2 Na5 Nce3 f3 Qf1 Nf6 g8R f2 g7 Bc6 d7 Bd6 d8B Bg3 e7 Qc3 e8N Rd4 Nc7 Rhh4 d6+ Bd5 d7 Nc6 Na6 Ne5 Rf8 Be4 g8N Bh7 Ne7 Ne8 Rf7 Nc7 Rg1 Bf4 Bd2 c1B Qa5 Bh2 Nc5 Be4 Rb1 a1N Rf8 Nc2 Nc6+ Kg6 Re8 Na3 Be7 Nab5 d8B Bf4 Bf8 Bg3 Re7 Kg5 Ra1 Bh2 Ra4 Bg3 Rb4 Bh2 Ne1+ Kf4 Rd7 Bg3 Bf6 Bh2 Qg2 f1B Qh1 Bh7 Rg8 Bg2 Rh8 Bge4 N1g2+ Kg3 Bd6 Kf2 Bde7 Ne8 Bbd6 Nec7 Ra8 Bf4 Nc4 Bh6 Bf4 Bf8 Nce3 Na3 Ba6 Nab5 Qg1+ Ke2 Qf1+ Kd2 Bg3 Na3 Bd3 Nab5 Be2 Nf3 Bdf4 Ne5 Nf5+ Kc2 Bd6 Be3 Bde7 Bg1 Nfe3+ Kd2 Bd6 Bh2 Nd3 Ne6 Ra4 Nc5 Bf2 Na6 B4g5 Rh5 Ba3 Ng4 Nc5 Rh4 Rb4 Bb8 Bg3 Ne5 B5f4 Nac7
2b4K/1Q2n3/1rrB2N1/bkNnB2q/R1nr4/4PB2/R1Bp1Q1N/r1R1N1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 d5 Kd4 Kd7 c4 a5 b4 f5 h4 a4 e6+ Kc7 Ke5 g4 e7 g3 e8B a3 b6+ Kb7 b5 a2 h6 g2 h5 f4 h7 f3 h6 f2 Qe1 d4 Rh4 d3 Bg6 Ne7 Kf6 Bd7 c6+ Kc8 c7 Kb7 c8R Be6 c5 Bc4 Nf3 g1N Nh2 Ra7 c6+ Ka8 c7 Kb7 Nd2 Ra4 Ndf3 Na6 Be3 d2 Bc2 Bd3 Bg2 f1R Qf2 Nb8 Ne1+ Re4 Bf3 Rg8 h8N Na6 h7 Nb4 Ng6 Bc4 h8B Bd5 Ra8 Rg7 Rc1 a1R Ra2 Qe8 c8N Rd4 Nd6+ Kb8 b7 Kc7 b8B+ Kb6 Rf4 Be6 Nb7 Bc8 Bd6 Rb1 Nc5 Nbd5+ Kg5 Rf7 Bhe5 Rf6 Kh5 Bg7 Re4 Bh8 Kh6 Rbb4 Kh7 Rb3 Bb8 Rc6 Bbd6 Bg7 Rf4 Bf8 Kh8 Rbb4 Na4+ Ka5 b6 Kb5 b7 Qf7 Bg4 Nf3 Nc5 Rb1 Re4 Ra1 b8Q+ Rb6 B5f4 Ne5 Qb7 Nc4 Bfe5 Qf5 Bf3 Rg1 Nh4 Rg6 Rf4 Rf6 Ng6 Qg5 Qh4 Qf5 Bg1 Qg4 e3 Qh3 Bb8 Rc6 Bbd6 Qf5 Qf2 Qf7 Nh4 Qh5+ Bh7 Nb2 Nb3 Ng8 Be7 Rd3 Rfa4 Nc4 Bb4 Bc5 Ba3 Bd4 Bd6 Nge7 Nc5 Bb2 Bg2 Rd4 Bf3 Qf5 Bg6 Bc3 Bh7 Qg4 Bc2 Ba5 Ng6 Qh5+
2Q1R2R/3N2r1/1BB4n/3Kn1kb/B3bNN1/2b1prRP/n2BQ2b/1N2q2B w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 g5 f4 a5 b4 e5 h3 d6 c6 e4 c7 g4 b6 g3 b5 e3 h6 a4 h7 a3 b7 a2 b6 g2 Ne2 g1B Bd2 Be7 Kd5 Ra6 c4 Ra5+ c5 Bf8 Bg2 Ra7 c6 Bf2 Rg1 Be7 Bh1 Na6 b8B Nc5 b7 Ra4 Ba7 Qd7 b8N Bh4 Rg3 Nd3 Bb6 Bb7 c8B Ne5 Qe1 Qd8 Bd7 Nh6 Qf2 Re8 h8R Rg8 Qf1 Rg7 Qe1 Ba6 c7 Bd3 c8B Ra8 Bc6 Be4+ Kd4 d5 B8d7 Ra6 Ba4 Bf8 Bdc6 Bb4 Qf1 Bc3+ Kc5 d4 Nd7+ Kf7 f6 d3 f5 Qc8 Nf4 Qc7 Rg4 Bg3 Qe2 Bh2 Rg6 Qb7 Rg3 Ra8 Kd6 Rf8 Kc5 Ke8 f7+ Ke7 Nf6 Qa8 Bc1 d2 Ng4 d1B Bd2 Qa6 Qf3 Qf1 Qe2 Re8 f8N Qe1 Nd7 Rf8 f6+ Kf7 Nd3 Kg6 f7 Kg5 Nf4 Bf3 Na3 Be4 Rc1 a1N Nb1 Nb3+ Kd6 Re8 f8Q Ra8 Rc2 Nc1 Qc8 Na2 Rc1 Bb3 Rc2 Bf7 Rb2 Bh5 Rb4 Bf5 Kd5 Ra7 Re4 Rc7 Nb8 Rcf7 Nd7 Bh7 Nd3 Rf3 Nf4 Nef7 Re6 Ne5 Ree8 Be4+
1b1qnR2/1r1Q1r2/NQ3r2/5b1B/K1b2k1P/NQBp1BRB/bR1n4/Q3B3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 c4 d5 e4+ Ke6 a4 g5 h4 b5 a6 f5 a7 d4 h6 d3 a5 g4 h7 g3 a6 f4 Ra2 g2 Bd2 f3 Rh3 f2 Na3 Qb6 Rb2 Nf6 Qb3 Ne8 Rg3 Rg8 h8B Qb7 Ne2 g1R Nc3 Qb6 Nd5 Be7 Be1 Nf6 Bh3+ Rg4 Nc7+ Kf7 e6+ Kg6 e5 Bd6 e7 Kf5 e8Q f1B e6 Kf4 e7 Ne4 Bhc3 Rg7 Qd8 Bf5 e8B Nd2 Bh5 Nd7 Qb8 Be5 c6 Rf7 c5 Nf6 Qd8 Rc8 a8B Ne8 a7 Bg2 Na6 Bd5 c7 Bc4 c6 Rb8 c8Q Rf1 c7 Rb7 Qcd7 Qd4 c8R Bb8 Ka5 b4 Ka4 Qf6 Qb6 Qd8 Qc2 b3 Qd1 Rc7 Baf3 Rb7 a8Q Rf6 Ra2 b2 Qdb3 b1B Rb2 Ba2 Qaa7 Qe7 Rd8 Nc7 Rf8 Ne8 Qd1 Rf7 Qbb3 Rf2 Qa1 Qd8 Qc5 Re2 Qcb4 Re6 Qb6 Ref6
1qB1bRQ1/3r1n2/n3k3/N2N1N1N/3QrPr1/p3Bn2/2RKRn1Q/QN2b3 w - - 0 1 illegal: No possible last move
4QB1n/RB4K1/2R1nN2/RQ1r4/NP1q1bnk/Qb1Q4/2B2Rp1/1rr1r1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 g5 e4 c5 h4 f5 d4 a5 b4 c4 b6 c3 h6 g4 Kf4 a4 Kg5 g3 Kg6 g2 d6+ Ke6 h5 f4 d7 f3 h7 a3 h6 f2 b7 c2 d5+ Ke7 e6 a2 e5 Ra3 Rh5 Bg7 d6+ Kf8 Ba6 f1N Nc3 Ra4 Nh3 Ra5 Nf2 Nf6 Na4 Nh2 Ne4 Nd5 Qg1 Qe7 Nf6 Nc7 d8Q+ Ne8 d7 Rd5 Qa5 Rd6 d8Q Rd2 Qd3 Nd7 b8Q Ng4 Bb7 Rg8 h8R Nc5 h7 Qd7 Qba8 Ke7 Qab5 Re2 Bh6 c1R Rf5 Ree1 Rf2 Rf8 Rg8 Nd6 h8R Re8 Rh7 Nf7 Rf8 Bh8 Rg8 Qd4 Bf8+ Kd8 Rh6 Re7 Kh7 Rd7 Rg7 Rd5 Rg5 Bg7 Rhg6 Nh8 e7+ Kc7 e8B Kd8 e6 Bh6 Rh5 Bf4 Kg7 Rb1 Qa7 Bd7 Bf7 Be8 Bg8 Bf7 Bh7 Rbc1 Nb6 Rb1 Qaa3 Bg8 Na4 Rbc1 Rb1 a1R Rbb2 Rab1 e7+ Kc7 Rbc2 Kd6 Ra2 Ke6 Rgh6 Bf7 Bf5+ Ke5 e8Q+ Ne6+ Kh7 Qb2 Qbc4 Rc5 Qdd8 Red1 Ng8 Rd3 Qab3 Re3 Nc3 Ree1 Ra7 Qd2 Qb6 Qd4 Na4 Ra5 Qa3 Rb5 Qd7 Nc7 Bc2+ Bg5 Qcd3 Bb3 Rc6 Ne6 Nf6 Ra5 Qe8 Rc5 Re2+ Kf4 Qa5 Ne3 Rf2+ Kg3 Kg8 Bf4 Rg5+ Kh4 Qaa6 Rc3 Ra5 Rc5 Qab5 Ng4 Kh7 Rd5 Kg8 Nd8 Kg7 Ne6+
brN1B1b1/1nrQ4/KRr5/n1B1Q1b1/p1NRQb2/Q1N2B2/q4NNP/k7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 d4 a5 Kd2 c5 Kc3 f5 Kc4 g5 e4 a4 h6 g4 h7 g3 e6+ Kd6 b6 g2 Kb5 c4 e7 f4 e8N+ Kd7 d6 Ke6 b7 c3 d7 f3 d5+ Ke5 d6 f2 Qc2 Kd4 e5 Ra7 e6 Na6 b8Q Qc7 d8Q Be7 d7 Qd6 Ba3 Nf6 Nh3 g1B Bg2 Bf8 e7 Qc7 Nd6 f1B+ Nc4 Qg3 e8B Bb7 Qe7 Be4 d8Q+ Nd7 Bf3 Ba8 Nf2 Rg8 h8N Nc5 Ng6 Bh3 Nf4 Rc7 Ng2 Nb7 Ka6 Bh6 b5 Bg5 b6 Na5 b7 Be6 Qf5 c2 Nc3 c1R Rb1 Rh8 Rb6 Bg8 Qg6 Rc6 Qbc7 Qf4 b8N Qd2 Qg3 Qa2 Bd6 Nf8 Qdd7 Ne6 Qb1 Nd8 Qb3 Ndb7 Qa3 Rb1 Qe1 Rh7 Bf8+ Nd6 Qe2 Rb4 Qe4+ Kc5 Qdf5+ Bd5 Ng4 Rc8 Rb7 B1e3 Qge5 Bef4 Nf2 Rh6 Qg4 Rc7 Qd7 Rg6 Nc6 Rh6 Qee7 Bg8 Na7 Rg6 Nc8 Rh6 Qb2 Rb5 Qc1 Kb4 Rd1 Kb3 Q7e5 Rg6 Rd3 Re6 Qa3+ Kc2 Ncd1 Kb1 Nc3+ Ka1 Rd4 Rb4 Ra7 Rb8 Rb7 Rf6 Rb6 Ndb7 Bc5 Rfc6
1N2Q1q1/NBK2N2/1n4r1/Q1NB3k/p3rR2/1b3nR1/QnP1b2B/b3nQ1Q w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 e5 Kc4 g5 Kd5 a5 h4 g4 f4 e4 b4 d6 c6 a4 h6 g3 b6 g2 h5 e3 b7 e2 b5 e1N h7 Na6 b8N Qe7 f6 Qa7 c7 Qb6 h6 Kg6 f5+ Kf7 Bf4 Nd3 Nf3 g1N Bh2 Ne2 Nc3 Bd7 c8B Ra7 Bg2 Be7 Ne4 Ng1 Qb1 Ne2 Nd4 Nac5 Ra3 Ra8 Rf1 Ra5 Bb7 Ra6 Ndc6 Bf8 Qa2 Nb2 Rg3 Qd8 b6 Bg7 Rf4 Nd4 Na7 Ncd3 Nc5 Nf3 Bh1 Bc8 Kc6+ d5 Bg2 Qe8+ Kc7 Ne7 Bh1 Rg8 h8Q Be6 h7 d4 Bd5 Qf8 b7 Nc8 Bg2 Nb6 Bh1 Ke8 f7+ Ke7 Bg2 Kf6 Bh1 Qe8 f8Q+ Bf7 Bg2 Nde1 Qd6+ Be6 Qe5+ Kf7 f6 d3 Qc3 d2 Qa5 d1B Bh1 Be2 Bg2 Ng5 Bgf3 Kg6 f7 Bf6 f8Q Bd4 Bh1 Kh5 Qf5 Rg6 Qd3 Bd1 Qf1 Ngf3 Bg2 Bf7 Bh1 Qe6 Qe8 Qg4 h8N Be2 Bg2 Bg8 Nf7 Re6 Qh1 Re4 Qeb5 Bd1 Qbf1 Be2 Nbc6 Bf6 b8Q Bc3 Qe8 Bh8 Nfd8+ Bf7 Nb8 Qg8 Qd7 Be6 Nf7 Bg7 Bb7 Bb3 Qdb5 N2c4 Qe8 Ba1 Bh3 Nb2 Be6 Nd7 Bc4 Rg6 Bcd5 Nb6
1B3r1k/7B/N1NRnn2/R3Qq1p/2KQb3/1QN2rr1/4R1bP/rN2bQN1 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 Kd2 a5 Kd3 f5 g4 Kf7 e4 Kg7 c4 h5 b6 d5 g6 a4 g5 a3 c6 f4 b7 f3 e6 f2 e7 d4 e8R a2 c5 Be6 c7 Ne7 c8Q Ra7 e5 Qd7 c6 Bh3 e6 Qc7 Qd7 Qd8 c7 Kg8 c8N Kg7 Nd6 Rg8 Nb5 Ra8 Kc4 d3 N5c3 d2 Bd3 f1R Qd4+ Rf6 Qf1 d1B Bf4 Nd5 e7 Nc6 b8N Ra3 Na6 Bc2 Bb8 Bf5 Be4 Kh8 g7+ Kh7 Bd3 Qd7 Be4 Rh8 g8N Nd8 g6+ Kg7 Bd3 Ne6 Rd8 Bg4 e8Q Bh3 Ne7 Bg2 Nc6 Bb4 Bf5 Qf7 Rd6 Bce4 Qe7 Kg8 g7 Rb3 Bg6 Rf3 Qg5 Qf5 Bh7+ Kf7 Qf4 Nf6 Qfe5 Rf8 g8Q+ Ke8 Qg5 Kf7 Qge3 Kg7 Qed3 Kh8 Qc2 Ra3 Qb3 Qg6 Nd2 Qg5 Re1 a1R Re2 Qf5 Ndb1 Ra5 Nh3 R5a3 Rg1 Bh1 Rg5 Bg2 Ng1 Rg3 Nd5 Be1 Ndc3 Qg4 Qef4 Qh3 Ra5 Qf5 Qfe5 R3a2 Re3 Rf2 Re2 Rff3
n2r3N/4k3/2RNrNB1/3RBqRp/5B1b/2R1Q3/Bb1Pr1br/4KnQB w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 h5 g4 e5 f4 a5 d6 c5 g6 e4 b6 e3 b7 c4 d7+ Ke7 f6+ Kd6 f5 c3 g5 c2 b5 a4 b6 e2 g7 a3 g6 a2 f7 Qe8 d8R+ Nd7 b8Q+ Ke7 b7 Ngf6 g8B Nd5 g7 Nc5 f6+ Ke6 Rh3 Ra6 Nc3 Nc7 Rd5 Nd7 Ne4 Ra5 Rc3 Rc5 Bg2 Qe7 Nh3 Rc4 Nhf2 Ra4 Bh7 Qd8 g8B Nc5 Bb2 c1B Nd6 Na8 Ng4 Ne4 Qa7 Be7 b8B Qf8 Qe3 Bb7 Bg6 Rb4 Rb1 a1R Bh1 Ra7 Ba1 Bb2 Rbc1 Kd7 Rc6 Ng3 R1c3 Nf1 Qc1 Qc8 f8R Ra6 f7 Rf4 Bc7 Rf2 Re8 Bd8 Ree5 Bh4 Rg5 Ra3 Bb8 Kd8 f8N Qf5 Be6 Ke7 Nf6 Ra6 Rdc5 Ra4 Ba2+ Re4 Rd5 Re6 N8d7 Rd8 Ne5 Ba6 Qb1 Bd3 Nef7 Be4 Nh8 Bg2 Qg3 Re3 Qf4 Rh3 Qg3 Rh2 Qbd3 Bf3 Qg1 Bg2 Qe3+ Be4 Qf3 Bb1 Ba7 Rc8 Rc1 Bc3 Be3 Rd8 Bf4 Be4 Qh3 Bg2 Rc2 Bb4 Bd4 Ba3 R2c3 Bb2 Qg3 Rf3 Q3f2 Re3 Qg3 Re6 Kf2 e1R Be5 Re3 Nb5 Rf3+ Ke1 Rf2 Nd6 Be4 Qh3 Bg2 Qe3 Re2+
5B1Q/q2R1N2/b4bnR/b1Nr1rNp/N1K3B1/2n1r2P/1RR4B/kN2Qr2 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 Kd2 Ke7 Kc3 Ke6 e4 d5 g4 f5 g6 a5 b6 a4 g5 f4 c6 a3 g7 f3 g6 h6 c7 a2 b7 d4+ Kc4 f2 Qe1 d3 Be2 f1R Bg4+ Rf5 Ba3 d2 Nh3 d1R Ng5+ Kd7 e6+ Kc6 e7 Rfd5 e8R Bb4 e5 Nd7 b8B Ndf6 e6 Bb7 c8N Ne4 e7 R5d3 Nb6 Ra6 Na4 Qc7 Rd8 Qb6 e8N Ba8 Nf6 Nc3 Nfe4 Qg1 Nec5 Bb7 Rd7 Ne7 g8N Re3 g7 Ba5 h3 h5 Nh6 Qf2 g8Q Ng6 Bh2 Rd5 Nhf7 Rf5 Qg7 Rf8 Qh8 Raa8 Rg1 Rad8 Rg2 Ba6+ Kd4 Ne4 c4 Nc3 Bb4 Qg1 Rb2 Rf1 Nce4 Qf2 c5 Kb5 c6 Qg1 c7 Qf2 Ne5 Rf5 c8R Qg1 Nef7 Qf2 Nbd2 Qg1 Rab1 a1B Rc6 Qf2 Rc2 Qg1 Bf8+ Bb2 Bh6 Kb4 Nec5 Ka3 Bf8 Ka2 Rf6 Rb8 Re6 Rb5 Kc4 Qf2 Rbc1 Qg1 Nb1 Ka1 Rb6 Nd5 Re2 Bf6 Rb2 Nc3 Rcc2 Qg3 Rd1 Qc7 Rd7 Qa7 Nge6 Nf4 Ne4 Bg7 N6g5 Be5 Rh6 Rd5+ Rb5 Ng6 Nec5 Bc8 Rbb7 Bf6 Rbb2 Ba6+
1KQ1Q2q/r1Nr4/B1R1bQ1B/k1B1nPpN/1R5Q/1nQ4N/3b4/r1r2Nn1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f6 Kd7 Ke2 c5 Kf3 Kc7 Kf4 Kb6 Ke5 a5 h4 a4 f4 a3 d4 g6 b4 e6 h6 c4 h5 a2 f7 c3 f5 c2 h7 Bh6 f8B Ra7 d6 Bd7 d5 Bg5 h6 Ra5 Qf3 Qe7 Nd2 Qe8 Nh3 Bc6 d7 Bd8 Kd6 e5 Rb1 Bf6 d8Q+ Kb7 b6 a1N b5 e4 Qc8+ Ka8 Kc7 e3 d6 e2 d7 e1R d8Q Bh4 b7+ Ka7 Rb4 Re2 b6+ Ka6 Qf2 Bf6 Qh4 Nd7 Be7 Qf8 Qe8 Bc3 Rh2 Ra4 b8N+ Ka5 b7 Bd5 Rh1 Re1 Na6 Ngf6 b8N Nb3 Bb5 Rg8 h8Q Ra1 h7 Rd1 Rh2 Ne4 Nf1 Nd6 Bh6 c1R Rc2 g5 Be2 Be1 Rc6 Nf7 Qc3 Be6 h8Q Rg7 Bc5 Rh7 Qhe5 Qh8 Kb7 Rd6 Bd3 Bd2 Qg7 Nf6 Nd7 Nh5 Nf6 Nf4 Nh5 Ne2 Kb8 Ne5 Qf6 Ra7 Nc7 Rd7 Ba6 Ng1
1rn1r1R1/b5B1/1QQ1Q2R/2qPB1br/N2BNN2/n6b/3p1NB1/1K3Bkb w - - 0 1 illegal: No proof kernel
4NB1b/2R2Qr1/BnrQ1rbr/2P1n2R/p2KqR1Q/1NB2RnB/7k/R7 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 Kf6 c4 Ke5 h4 g5 f4+ Kf6 b4 e5 b6 a5 h6 d5 h7 a4 h5 e4 c6 g4 h6 g3 c5 g2 c7 Qe8 b7 Qd7 b5 Ra5 b6 Qb5 Nh3 g1R Bb2+ Ke7 f6+ Ke6 f7 Kf5 Nf2 Rg2 Qh5+ Rg5 Ng4 Nd7 b8Q Bd6 f8B Be5 b7 Qb4 Bc3 Ra6 Nd2 Ne7 Nb3 Rf6 Rh3 Nb6 Qf7 Rg7 Rf3 Nc6 Bh3 d4+ Ke2 e3 Kd3 Bd7 c8B e2 Qd6 e1R b8R Rf1 Bb7 Be8 Rc8 Rg1 Ba6 Re1 Qc4 Bg6 Rc7 Re4 Qf7 Qc4+ Kc2 d3+ Kb2 d2 Kc2 Qe6 Kd3 Rb4 Ke3 d1N+ Kd3 Rhg8 h8R Nf2+ Ke3 Nh1 h7 Nd5+ Kd3 Rb6 Kc4 Ke4 f5 Qe8 Qfe7 Ng3 Qf7 Re6 f6 Qa8 Be7 Rc8 Bf8 Qb7 Rg8 Bd4 h8Q Be5 Qh4 Qa8 Re3+ Kf4 Rh8 Qb7 Rh5 Qa8 Qe8 Qb7 f7 Rf6 Be7 Qa8 f8R Qb7 Qed7 Qa8 Rf7 Rh8 Bf8 Rh6 Re4+ Kf3 Be1 Bb2 Bc3 Ne5+ Kd4 Rc6 Qe8 Nb6 Qee7 Rf5 Nf6 Kf2 Ne8 Rf6 Bf5 Kg2 Bh3+ Kh2 Rf4 Re6 R7f5 Rf6 Qf7 Qb7 Rc8 Qe7 Rf3 Qe6 R5f4 Qf5 Rc7 Qc2 Ke3 Qe4+ Kf2 Rgh7 Qd4 Rfe6 Be1 Nec4 Qd6 Bh8 Ba5 Ne5 Bc3 Qc4 Ke3 Rf6 Rff1 Qe2+ Kd4 Rg7 R1f3 Qe4+
1B2r3/1q3kN1/6bb/2pNrN2/3NBR1B/bKP3nB/1n1Q2Bb/RQr2R2 w - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 e5 gxf5 g4 d4 Bg7 dxe5 Qg5 hxg5 Bf8 Kd2 c5 Kc3 h5 b4 d5 e4 a5 f4 g3 g6 a4 g7 a3 b6 d4+ Kb3 d3 e6 h4 b5 a2 e7 g2 b7 d2 f6 h3 f7+ Kd7 e8N Ke7 e5 h2 f5 Ra7 b6 Ra4 f6+ Ke6 Nc3 Ra6 Nf3 g1B Nh4 Bd6 f8N+ Kf7 Bg2 Bf2 Rf1 h1R Ne6 Nd7 b8Q Bf8 b7 Rc6 Nd5 Ne7 c3 Bg1 Nf5 Bh2 Ned4 Re6 Qc2 d1Q Bg5 Qc1 Qd2 Nb6 Bh4 Nc4 Bh3 Nb2 g8B+ Kg6 f7 Bh6 f8R Qb1 Rf4 Rc1 Neg7 Bd7 Rf7 Be8 Rf8 Nc8 Bg2 Nd6 Rf1 Re7 Be6 Ne4 Bc8 Ng3 e6 Bb5 Rf7 Bd3 Bd7 Rc8 Be4 Ree8 e7 Rc6 Bg2 Re6 Bc8 Re5 Be6 Rc8 e8B Rd8 Bc6 Re8 Nfe3 Be4 R7f4 Bd3 Bf5+ Kf7 Bfh3+ Bf5 Qa7 Qe4 Qb6 Qb1 b8B Qe4 Nf6 Bg6 Nef5 Qf3 Ba8 Qc6 Nd5 Qb7 Rb1 a1B Qb5 Nd1 Qb4 Bb2 Ra1 Ba3 Qb5 Qa7 Qbd3 Nb2 Qb1 Bh7 Nde3 Qa6 Bae4 Bg6 Nd5 Qb7+
2b1N3/B2K3R/Q1BB1q1Q/pNQR1n1n/3b1r2/3r1BPn/B3N3/N1bkb3 w - - 0 1 illegal: No proof kernel
N3N3/b1R1Q3/4R1P1/n3pr1R/BBQQb1r1/1n3q2/br1b1R1Q/2QNk1K1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 h5 f4 a5 Kf2 c5 d4 h4 d6 a4 d7 e6 f6 Kg6 b6 c4 b5 a3 b7 h3 f5+ Kh7 b6 h2 d5 a2 d6 c3 f7 c2 g6+ Kg7 g5 Nf6 Nc3 Nc6 b8N Ne7 b7 Ra3 Nge2 Qe8 d8Q Nh5 d7 Rb3 Ba3 c1R Na4 Rh7 f6+ Kh8 Na6 Nc6 b8Q Nf4 Qe7 Na5 d8Q Rc4 Rc1 a1B Nc7 Rb2 Q8d4 Qc6 Ne8 Rh5 g7+ Kh7 g6+ Kh6 g8Q Kg5 Nb6 Kh4 Bb4 Bh6 f8R Rf5 f7+ Kg4 Na8 e5 Q1d2 Qf6 Nc3 Be6 Qc8 Bd5 Bd3 Bg5 Kf1 Kf3 Bc2 Ne6 Nd1 Nc5 Ba4 Ncb3 Qh7 Bf4 Rc3+ Be3 Qc1 Qc6 Rc2 Bd2 Rh8 Be6 f8R Qe4 Rf6 Qe3 Rg1 h1B Rg2 Qe4 Re2 Kg3+ Kg1 Qf3 Rf2 Bg8 Qe3 Rg4 Rc7 Bd5 Qa6 Be4 Qf1 Bb1 Qe4 Ba2 Qd4 Qe4 Qa7 Rb1 Re6 Bd4 Qfc4 Rb2 Qb6 Qd3 Qbd6 Bb6 Qdd4 Ba7 Re2 Be4 Qh2+ Kf3+ Rg2 Qc3 Rh5 Qd3 Nf2 Ke2 Nd1+ Ke1 Bd6 Rh4 Bb4 Qf3 Rf2 Rg4+
bnB1NB2/3RQ1b1/4KPN1/3Q1b1k/1r2Q2n/1R1r2pB/r1QR2Rq/r5Q1 w - - 0 1 illegal: No possible last move
N3B3/N1b2q2/1N1r1pb1/1N4nk/3QB1b1/1rNRb1Q1/2P1R1KB/rBQ2n2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 d5 h4 a5 e4 g5 b4 a4 c6 a3 b6 g4 h6 a2 b5 g3+ Kg2 d4 c7 d3 b7 d2 h5 Bb4 b6 Bd7 c8B Bf8 h7 Ke7 h6 Ra7 e6 Kf6 e7 Kg5 e8N Bg7 e5 Qe7 e6 Qa3 e7 Qb3 Rh3 Be5 Bd3 Bf5 Ne2 Nc6 b8N Qe6 b7 Qf6 Be4 Ra8 Nd4 Bd7 Nc3 Nb4 Nbc6 Bg4 b8N Bd6 Nd7 Ra3 Ndb5 Qf5 Nec7 Nd5 e8B Ngf6 Nca7 Rb3 Na8 Bc7 Ndb6 Rg8 h8Q Nh7 Ba6 Rg6 Qe5 Rd6 Bc8 Kg6 Be6 Ng5 h7 Bh5 Qf1 d1B Bf4 Bdg4 Re1 a1R Re2 Kh6 Qc1 Ne3+ Kh1 Nf1 h8Q+ Qh7 Kg2 f6 Qg8 Qf7 Qd4 Rbb1 Ba2 Rb3 Kg1 g2 Rd3 Bg6 Bh2 Kh5 Bb1 Qd7 Kf2 g1B+ Kg2 Qe7 Qe6 Qd7 Qee5 Qf7 Qg3 Be3
n1BNN2R/bN5b/1Q1Nrp1n/2P2KB1/nR1r4/4Q1R1/kr3NQ1/4qQ1n w - - 0 1 illegal: No possible last move
1N4NN/1Rrr2KB/1b1p3n/1R4BQ/3q1R1Q/nQ4R1/2nNr1P1/kr3b1R w - - 0 1 illegal: No possible last move
kN1Q3N/Bn2r3/2p1B1Q1/1n3qBQ/bN4n1/Q1P3b1/K1rbn2R/1Q1BR3 w - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 a5 Kc3 g5 Kb3 d5 h4 Kd7 f4 d4 e6+ Kd6 c3 g4 f6 c6 f7 Kc7 f5 Kb7 h6 a4+ Ka2 d3 b4 d2 h7 g3 e7 g2 e8B a3 f6 Qd6 h5 Qh2 h6 Ka7 b6+ Kb7 b5 Qd6 Nh3 g1B Bd7 Qh2 Be2 Qe5 Nf4 Ra7 Ng6 Bf2 Be6 Ne7 Rh2 Nf5 Qf1 d1N Bg5 Bd6 f8Q Be3 f7 Nd7 Qe8 Ng3 f8Q Nf2 Bd1 Bd2 Qd8 Rg8 h8Q Qf5 h7 Ng4 Qhg7 Ka8 h8Q Nc5 Qh5 Nb7 Nh8 Ne2 Qgg6 Bg3 Qh1 Rg7 Qe4 Re7 Qc2 Na5 b7+ Kb8 Qc1 Nc4 Kb3 a2 Qb2 Re8 Bc2 Nd6 Na3 Ra5 Re1 a1N+ Ka2 Ra7 Bd1 Nc2 Kb1 Ncd4+ Nc2 Ra8 Qb4 Ra1+ Kb2 Ka7 b8N Rc1 Ka2 Ka8 Qb1 Ba6 Qfe7 Nb7 Qa3 Re7 Nb4 Na5 b6 Bb5 b7+ Ka7 Nd3 Ba4 Nb4 Nb5 Nd7 Nf2 b8B+ Ka8 Na6 Nb7 Nb4 Ng4 Ba7+ Bb8 Qb6 Bc7 Nb8 Bg3 Qd8 Rc2+
B1r1k3/R3r2N/B1p2rRq/1B2R1r1/1N1P2nb/QQ2n2N/Bn1B4/RbK5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 a5 d4 f5 Kd2 h5 e4 a4 g4 f4 d6 f3 e6 f2 g6 a3 d7+ Ke7 e5 a2 b6 h4 b5 h3 b7 h2 b6 Rh4 g7 Ra3 g5 Rh7 g6 Re3 Nh3 Ra3 Qb3 Nf6 g8B Qe8 d8N Rf7 g7 Ng4 Nc3 Nf6 Ba6 f1R Rg1 h1R Rg6 Qa4 Nc6+ Ke8 e7 Rf5 Ne4 Nfd7 Neg5 Rg1 Nb4 Qc6 Nh7 Nf6 Qd3 Nbd7 b8R Rg4 b7 Nb6 Ra8 Rc3 b8Q Na4 Ra7 Nb2 Qbb5 Rc5 Qa3 Rgg5 Qbd3 Ng4 Qdb3 R7f6 Bd5 Re6 g8B Rff6 Be4 Qd6 Bf3 Bb7 Bg2 Be4 Bf3 Bb1 Ba8 Kd7 e8R Be7 Bf7 Bd8 Bg8 Qf8 Bf7 Re7 Bg8 Qh6 Bf7 Na4 Kd1 Rc3 Bd2 Rcc6 Bfc4 Nb2+ Kc1 Rc5 Rf8 Rcc6 Rf7 Ke8 e6 Rb6 Bcb5+ c6 Rfg7 Rb8 Rf7 Reb7 e7 Rc8 Rfg7 Bc7 Rf7 Bg3 Rfg7 Bh4 Rf7 Kd7 e8B+ Kd8 Rfg7 Rbf7 Bd7 Re7 Be6 Ke8 Bd5 Rff7 Re6 Rf6 Rg6 Bf5 Rb1 a1N Re5 Nc2 Ra1 Nce3 Qd1 Be4 Ba2 Bd3 Qdb3 Bb1
Q2nQnb1/1B3nNp/4N3/1r4N1/n3K2k/qPBQ4/R2rN2b/1QB1N1bR w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 c5 g4 e5 f4 a5 d4 c4 g6+ Kf6 b6 e4 g5+ Kg7 b7 a4 d6 c3 d5 a3 d7 a2 d6 c2 b3 Ra7 Nf3 Nh6 f6+ Kg8 f5 Qa5 d8Q Qa3 g7 Kf7 d7 Ng8 Nc3 Ra5 Bg2 Ne7 Ne2 Rb5 Ne1 Nbc6 b8B Ng6 Be5 Bd6 Bc3 Bh2 g8N Nf8 Ne7 Ba6 Qa8 Nd8 Kd4 e3 Bb7 Bg1 Ke4 Rg8 Ng6 Rg7 Ngf4 Bh2 Ne6 Rg6 Rb1 a1B Rb2 Rh6 Ra2 Rh4+ Kf3 Rd4 Ng7 Rd2 Ke4 Bb2 Ng3 e2 g6+ Kg8 f7+ Kh8 Nd3 e1N f6 Nf3 Ne1 Ne5 Ne2 Ba1 B1b2 Bg1 Qb1 Bh2 Bc1 Bb2 Bb4 Bd4 Ba5 Bdg1 Bc3 Nfe6 f8N Kg8 B1b2 c1N f7+ Kh8 Nd4 Ncd3 Bc1 Nb2 Ne2 Ndc6 d8Q Na4 Qdd3 Ncd8 Nd7 Nf8 Nc5 Nb6 Nce6 Na4 Bc6 Bc8 Ng5 Be6 Bb7 Nfd7 f8N Bg8 Ba5 Nef7 Nfe6 Nf8 Bc3 Qb2 Ne8+ Ne5 Ng3 Qa3 Nh3 Bf7 Ne2 Kg8 Nc5 Be6 g7 Kf7 Qe3 Kg6 g8Q+ Kh5 Ng7+ Kh4 Ng5 Nfd7 Qe8 Bg8 Nce6 Nf8 Qed3 Nef7
1N3NR1/4Q2p/rn2KB1k/QbRbB2b/N1Nq2PN/4b3/B1r1Q3/1nr3Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 d5 Kc3 a5 Kd4 f5 g4 Kf7 b4 Kg7 c4 a4 e4 a3 b6 f4 g6 f3 b5 a2 c6 f2 c7 Bd7 c8Q Qf6 c5 Ra4+ Bc4 f1B b7 Qb6 e6 Nh6 Ke5 d4 c6 d3 e7 d2 e8Q Ra3 c7 Rb3 Bb2 Rg8 Nc3 Qf2 b6 Qe3 Nf3 Bc6 Qf5 Qg1 c8N Ba3 Nh4 Bh3 Nd6 Na6 b8B Nc5 b7 Rh8 Rh2 Qe3 Qg1 d1B Rc2 Bf3 Rb1 Rb6 Na4 a1R Ba2 Ng8 Rcc1 Kh6 g7 Ne7 g8N+ Kg7 Nf6 Nc8 Nd7 Kh6 Kf6 Nb3 e5 Qf4 e6 Nd2 e7 Bf1 Qd8 Ra6 e8Q Bc4 Qe2 Bc5 Qde7 Be3 Bc7 Qe4 Qa5 Bf7 Bd4 Rd8 Rc5 Bh5 Nc4 Qd3 Rd1 Nb6 b8N Rc1 Ke6 Bb5 Bf6 Nb1 Bd6 Qc3 Rdd5 Be4 Nf8 Rd7 Re5 Qb2 Bc7 Rd2 Rg5 Rdc2 Bce5 Qd4 Rg8 Bd5+
2Q4K/1r1nP3/2B1rB1k/QNNqb1b1/1Q1rQ2B/1B2p2r/b1RR4/n1R4Q w - - 0 1 illegal: No proof kernel
7b/BB1P1bRR/7p/b2nb1KQ/B2Nr2n/N1r4Q/2Qr1kB1/2R1qBR1 w - - 0 1 illegal: No possible last move
n2bR2B/BQPKQ1q1/3R1R2/2B1rbp1/3nB2k/4Q2N/1RbBnN2/4r2n w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 d5 h4 g5 c4 a5 b4 e6 f4 a4 h6 a3 h5 a2 c6 Bg7 Kc5 e5 c7 d4 b6 d3 h7 d2 h6 e4 b7 e3 b5 e2 b6 e1N Bg2 Bd7 Kd6 Nf3 c8Q Ne1 c5 Ra4 c6 Ra3 c7 Ra6 Be4 Ra5 Qe2 d1B Bd2 Ra8 Nc3 Nd3 Nh3 Nb4 Rf1 Bb3 Rad1 a1N Qe3 N8c6 b8B Nd5 b7 Nc2 Ba7 N6d4 b8R Nb6 Qb7 Ne7 Rf2 Re8 h8B Ne2 h7 Kf7 f6 Ncd4 f5 Bc2 Rf4 Nec6 Rf2 Nb4 Rf4 Nd3 Rff1 Kf8 f7 Bf6 Rf4 Qc8 Rf2 Bd8 Rf3 Nc6 Bd4 Nf2 h8B Re5 Bc5 Nh1 Rf2 Bf6 Rg2 Qe8 Rd8 Rb8 Re1 Bc8 Nd1 Na8 Ndf2 Ncd4 Rd7 Bd8 Rf1 Nb5+ Kc6+ Qe7 Rd6 Qf6 Re1 Ke7 f8R Qg7 Rf1 Be6 Re8+ Kf7 f6 Bf5 Rh2 Kg6 f7+ Kh5 f8Q Kh4 Qe7 Bg6 Kd7 Nbd4 Ng4 Rc8 Rff6 Rb8 Ngf2 Bh7 Qd5 Rb1 Qb7 Ra1 Rg2 Bg6 Rg1 Bh7 Rb1 Bg6 Rb5 Re1 Rb2 Bf5+
2R2BN1/PQb2r2/2N2RB1/1NB1b1k1/2q2rb1/RB1Rb1n1/2p2nn1/K2Q3R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kf7 Kd2 Kf6 Kc3 c5 Kb2 e5 a4 g5 f4 b5 h4 e4 a6 c4 a7 b4 a5 e3 h6 g4 a6 e2 h5 e1B h7 g3 d6 g2 d7 b3 d5 Qe8 d8Q+ Qe7 d6 Bg7 d7 Ba5 h6 Bb4 Qb6+ Qe6 d8R Bbf8 Bd3 Be7 Qb7 Qe3 Na3 Qc5 Be3 Qb4 Ne2 g1B Nb5 Bh2 Bc5 Nd7 Ra3 c3+ Ka1 c2 Ned4 Qc4 Nc6 Ne5 Rd7 Rb8 a8B Ng4 a7 Nf2 Be4 Bg1 Rd3 Bd6 Bd5 Bc7 Be4 Kf7+ f6 Ne7 f5 Rf8 h8R Nd5 h7 Ne3 Rg8 Ng2 h8N+ Ke8 Ng6 Kf7 Nge7 Be6 Rhh3 Rbd8 Rh1 Rd4 Bd5 Rf4 Be4 Nh3 Rh8 Be3 Ng8 Nf2 Bf3 Ke8 Bh5+ Rf7 Bg6 Bd5 Qb6 Bf3 Bb7 Be2 Bc8 Bg4 Qb7 Qb4 Be6 b2+ Ka2 b1N Bb3 Nc3+ Ka1 Ne2 R8h6 Nd4 Rh8 Kd7 R8h6 Qc4 Rh8 Rf8 f7 Be5 f6 Ke6 R8h6 Rc8 f8B Nf5+ Rd4 Ng3 f7 Rd8 Rh8 Rd7 R8h6 Bed6 Rd3 Re7 Bg7 Rd7 f8R Re7 Rc8 Ref7 Bh5+ Kf5 Bf8 Kg5 Rf6 Qa4 Bg6 Qc4 Bb6 Be5+ Bd4 Bed6 Bc5 Be5+
n2kb1r1/PnNBn3/2nRB1NR/2Br1N2/Nr1Q1K1N/pQ2b3/1Q4q1/Q7 w - - 0 1 illegal: No proof kernel
b1kBbq1Q/p1r2R1B/1R2N2n/6Q1/RK3Q1N/2r3P1/Q2rR1Rn/bb2B3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 e4 Kd7 d4 f5 Kd2 c5 Kc3 h5 b4 h4 g6 h3 d6 c4 e6+ Ke8 b6 h2 g7 f4 d7+ Ke7 b7 f3 b5 f2 b6 Rh4 d5 Rg4 e5 Rd4 Bd2 Nh6 g8R Qc7 Nh3 Kd8 Qa4 Qd6 Bd3 f1B Nf4 Qc5 Be1 Qc6 Nd2 Qc5 Nf3 Nc6 b8Q Ng4 b7 Be2 Rf1 h1B Qa3 Ke7 Bh7 Bd3 Qc7 Bg6 b8R Bb7 Nh4 Rd2 Qb3 Rf2 Ra4 Bg7 Qa2 Re2 Rf3 Nd4 Rf2 Qc6 Kb4 c3 Rf1 Qa6 Qcc4 Bc6 Rb6 Bh6 Rg7+ Kd8 e7+ Kc7 e8Q c2 e6 c1R g3 Bb1 e7 Qc8 Qh8 Qf8 Rg1 Rc8 Rf7 Nf5 Qe4 Rc5 e8R Bg7 Qf3 Rec2 Re2 Rd2 Qe4 Bf3 Rgg2 Nfh6 Qe3 Ba1 Qf2 Bb7 d8Q+ Kb8 d6 Bc6 d7 Rc3+ Qe7 Rc7 d8B Kc8 Ne6 Nh2 Qf4 Be8 Qc5 Ba8 Qe7 R7c5 Qeg5 Rc7+
QR3RQ1/2kbQnr1/3R2bB/r3b1nB/q1K1B1B1/1PN3N1/1Qp5/2q1Q1b1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 c5 g4 a5 f4 e5 g6 h5 d6 h4 f6 a4 g7 h3 f7 e4+ Kc4 a3 d4 e3 f5 e2 g5 e1Q b6 a2 f6 h2 d5 Ne7 g8B Qc7 g6 Bg7 f8Q Nbc6 b7 Nd4 b8Q Qe3 f7 Qh6 Bh3+ Ndf5 Bg4 Qa5 Qe1 Bf6 g7 Qa7 Bh7 Qe3 g8B Be5 Nc3 Ng6 Nge2 Nf4 Ng3 Nh3 Rb1 a1B Bg6 Qh6 B6h5 Ng5 Bh7 Rg8 Be3 Rg7 Qg8 Qa3 f8R Ra5 Rg1 h1B Rg2 Bd4 Rd2 Qa4+ Qb4 Qe6 Bf4 Nh6 Be4 Nhf7 Be3 Nh7 Bh6 Nhg5 Rdd1 Bg1 Rd3 Bb7 Rd2 Bc6 Rdd1 Nd8 Rd4 Kc8 d7+ Kc7 Rd2 Ndf7 Rdd1 Kd6 d8Q+ Bd7 Qa8 Qe5 Rd2 Qf4 Rdd1 Qc1 Rd2 Ke5 d6 Bg2 Rd1 Bh3 Rd4 Bf5 d7 Bg6 Be2 Bhf5 d8Q Bd7 Rd2 Ke6 Beg4+ Ke5 Rg2 Kd6 Qe7+ Kc7 Rd2 Nh3 Rd6 Nhg5 Rb6 Qe3 Rd1 Qc1 b3 Bb2 Rdd6 Ba1 Rbb8 Bb2 Kd3 Ba1 Qa3 Bb2 Nb1 Be5 Qb2 c4+ Ke2 c3 Kd3 c2 Nc3 Qa3 Kc4 Qa4+
2RN3Q/3q1b1q/1Q4Q1/1bB1bB1P/2kBb3/1rrp1n2/1QQB1KNn/1R4R1 w - - 0 1 illegal: No proof kernel
1b3Q2/1r3q2/1B1N2Q1/1QKPkq2/1rR2N2/2bB1nb1/bB3p1n/RQ2B1BN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kd4 g5 h4 a5 e4 a4 b4 a3 e6 Kd6 b6 a2 b7 f4 e5+ Ke7 h6 g4 b5 g3 b6 f3 h7 f2 d6+ Ke8 h5 g2 d7+ Ke7 h6 c6 Kc5 Qe8 d4 Qd8 d5 Ra7 Rh4 Ra6 Nc3 Qe8 Rc4 Ra4 Nge2 g1Q Ng3 Qf7 Nce2 Rb4 Bb2 Nf6 Qb1 Ng4 Nh1 Nh2 Nf4 Qgg6 Bd3 Qgf5 Bc3 Rg8 h8Q Rg7 Be1 Rh7 Qg8 Bg7 Qh8 Bf6 Qg7 Bh4 Qg6 Rg7 h7 Bg3 h8B Rh7 Qb3 Rg7 Qa4 Rh7 Qb5 Rg7 Rac1 a1B Rb1 Bc3 d8B+ Kf8 Ra1 Nd7+ Kd6 c5 b8B Ke8 e7 Ba6 b7 Rh7 Bb6 Rg7 Rd4 c4 Re4 Bd4 B8c7 c3 Kc6 c2 b8Q+ Bc8 Kd6 Bc3 Rc4 c1B Kc6 Nf3 Qb7 Nf6 Kc5+ Bd7 Bb8 Ng4 Bd6 Bc6 Bdc7 Kd7 e8N Ke7 e6 Ngh2 Qb8 Bb7 Nd6 Ba6 Qb7 Ra4 Qb1 Rb4 Qc8 Bb5 Qa6 Ba4 Qb5 Bb3 Bb8 Ba2 B8c7 Kf8 e7+ Kg8 Qg5 Kh7 e8Q B1d2 Qgd8 Kh6 Qa8 Kg5 Qf8 Kf6 Qac6 Ke5 Qce8+ Qe7 Qg6 Qef7 Ng2 Qg8 Bd8 Bb2 Bh4 Nf1 Rc2 Bh2 Kc6 Bdf4 Rc5 Kd4 Nc8 Qgf7 Bg3 Bb8 Nd6 Q7f6 Nf4 Rb7 Bg7 Ke3 Bh8 Qf7 Rc4+ Bd4 Bd8 Bb2 Kc5 Bf6 Bb6 Be5 Nh3 Bg7 Be5 Bf4 Bb2 Bc3 Bf6 Bh2 Bh4 Bhe5 Bg3 Bf4 Bh2 Bg3 Bg1 N1h2 Nf4 Bg7 Ne6 Bc3 Nd4 Kf4 Ne2+ Ke5 Nf4 Qe4 Nh5 Qg4 Nf4 Qgf5
KB1Nq2r/3Qn2Q/1nBRNPQ1/8/2Nn3B/3n1bR1/kb1pr1N1/q4QN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 d5 Kb4 g5 c4 e5 f4 e4 h4 e3 b6 a5+ Kb5 d4 b4 e2 f6 Ke6 c6 e1N b7 d3 h6 a4 c5 Kd5 c7 g4 Kb6 Kc4 f7 g3 b5 g2 h7 a3 c6 a2 h5 Bh6 f8N Ra7 f5 Bg7 h6 Nf6 Nd2+ Kb4 Ne6 Rf8 h8N Na6 b8B Qe8 h7 Qd8 Rh3 Bd7 Nc4 Ne8 f6 Bh6 Rg3 Rg8 Bg5 d2 Bh4 Nd6 Ng6 Nf7 h8Q Nd3 Qh7 Nd6 Ngf4 Qe8 c8Q Nf5 c7 Bc6 Qcd7 Bf8 c8Q Nc7 Be2 Bd6 Qf1 Kb3 Bf3 Ne7 Be4 Bb7 Bc6 Ba3 Qg6 Ba8 Qb7 Bb2 Re1 a1Q Re4 Qc8 Rd4 Ka2 Rd6 Ra4 Qa7 Rh8 Qb7 Rb4 Ka7 Qe8 b6 Ncd5 Qbc7 Rb3 b7 Rb5 Qh7 Nb6 Qg6 Nf5 Qdh7 Re5 Qcd7 Re2 Nf3 g1N Ng2 Nh3 Ng1 Nhf4 Bc7 Nfd5 b8N Na4 Bb7 Ba3 Nc6 Nde7 Bb8 Nd4 Ncd8 Nb6 Bc6 Bc1 Ba4 Bd5 Bc6 Bf3 Kb7 Bb2 Ka7 Nbd5 Ka8 Nb6+
bB4q1/Q3n3/4pR1P/Q1NNB3/Bb2BbNR/Nnr5/1kN1K2R/q2b2r1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 b4 Kf6 h4 Ke5 f4+ Ke4 h6 g5 c6 d5 c7 a5 f6 g4 b6 e6 c5 g3 f7 d4 h7 d3 h5 Kd4 f5 d2+ Ke2 a4 f6 g2 b5 a3 b7 a2 h6 Ra5 b6 Qe8 c6 Ba3 f8R Bd6 f7 Ra3 Rh4+ Bf4 Bb2+ Kc4 Qa4+ Kd5 Qa5+ Kc4 Nf3 Kb3 Ne1 g1B Be5 Bg3 Bg2 Ne7 Be4 B1f2 Nc2 Bd7 c8B Bd4 c7 Nbc6 b8B Ng8 b7 Ra4 Nba3 Rc4 Rah1 Na7 R1h2 Bc6 Bd7 a1Q c8N Bc5 Nb6 Ne7 Nd5 Rg8 h8N Bf4 Ng6 Qc8 Be8 Rc3 Bd7 Kb2 Be8 Ba4 Bd7 Bb3 Ba4 Qd8 Bh8 Rg7 Ne5 Rg1 Ng4 Bb4 Bhe5 Qc8 Rh8 Ba2 f8N Nac6 Nd7 Qg8 Nc5 Bb1 Rh7 Ba2 Rf7 Nd4+ Kf2 Bb1 Rf6 Nb3 Ke2 Ba2 Bbc7 Bb1 b8Q Ba2 Qba7 Bb1 Bh7 Ba2 Bb8 Bb1 Ne1 Be4 Nec2 Bg2 Nc7 Bd5 Be4 Ba8 Nd5 d1B+
1B3bk1/2n2N2/3p1BNR/Rn2nP1r/2QQ2N1/q2N1qQN/BQ2bK2/1nr5 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 b4 a5 f4 g5 h4 e5 b6 d6 c6 a4 f6 e4 b5 e3 c5 a3 f5 e2 c7 a2 c6 g4 h6 g3 b7 g2 b6 Ne7 h7 Qe8 h5 Ra3 h6 Bg7 Bb2 Be6 c8Q Rc3 c7 Kf8 f7 Ng8 Kf2 e1N Nh3 g1N Nd2 Nd7 b8N Nc5 b7 Nb3 Nd7+ Ke7 f8N Kf7 b8B Rc4 Nf6 Rc1 Ng6 Nc2 Nc4 Qf8 Qd4 Nf3 Ng4 Nf6 Qa6 Bd7 c8Q Nd5 Qa3 Ne5 Be2 Nd2 Qg3 Nc7 Rh2 Rg8 h8Q Nb1 h7 Bb5 Bf3 Qe7 Bd5+ Qe6 Bc3 Bf8 Nb2 Be2 Nd3 Nca3 Qa6 Rg7 Qac4 Nab5 Rh1 Ke8 Rh2 Qd7 Rh1 Qc6 Be6 Rd7 Qg7 Qe4 h8N Rf7 Qf6 Rh7 Nf7 Rh5 Qg5 Qb7 Qd2 Qc6 Qb2 Nd2 Rb1 a1Q Bd5 Qaa8 Ra1 Nb1 Ra5 Qca6 Qcc5 Q6a7 Ba2 Qe4 Qcd5 Qc5 Qc4 Qa3 Bd2 Qd5 Bg5 Qc6 Bf6 Qe4 Re1 Qf3+ Kg1 Rg5 Nhf4 Be7 Rd1 Qa8 Kf2 Qc6 Ngh8 Kf8 Rh1 Kg8 Nhg6 Bf8 Rh6 Rh5 Nh3 Qf3+
n1K1Q3/NBQn3R/1pNb4/1R2qnR1/PBN1k3/r4NR1/Qrbnq3/R7 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 g5 h4 c5 d4 e5 f4 c4 a6 c3 f6 g4 a7 b6 h6 g3 f5 g2 f7 c2 f6 Bg4 h5 Nc6 h7 Bg7 f8Q+ Nce7 f7 Rb8 a8Q Bd7 h6 Be8 Ba3+ Kd7 d6 Ke6 d7 c1Q d5+ Kf6 d6 Qcc8 Rh5 Nf5 Kd5 e4 Nd2 e3 Qc2 e2 Bb4 e1N Ba6 Qe7 d8N Ba4 d7 Nd4 Bb7 Qc7 Nc6 Bb3+ Nc4 Ne6 d8N Nf3 Rg5 Nd2 Na7 Qe5+ Kc6 Nc7 Nf3 g1N Qe8 Bf8 a4 Ne2 Qa2 Rc8 Qb8 Na8+ Qc7 Bc2 Rg3 Kf5 Rg5+ Ke4 Rg3 Bg7 f8R Nf6 Rg8 Bf8 R8g5 Rg8 h8R Nd7 h7 Rg7 Rg8 Rf7 h8R Rg7 Rgh3 Ng3 R3h7 Nf5 Rg3 Rg4 Rg5 Rh4 Rhg8 Rh2 R8g6 Rg2 Rd6 Re2 Rd5 Re3 Rb5 Ra3 Ba6 Q7e6+ Kb7 Bd6 Ndc6 Qe7 Qg6 Rg8 Qe8 Q7e6 Kc8 Rh8 Re7 Rh2 Bb7 Rg2 Nb2 Qc4 Rh7 Qe2 Nc4 Rg1 Rh8 Rb1 Rh7 Rb2
1qq1K3/BRNn2R1/P5nR/r1NQ1rR1/N6r/bN1p3N/1B2b3/1Qr2k1B w - - 0 1 illegal: No possible last move
N2Q2N1/2bK1R1Q/P1r3R1/3bB3/1q1rn1pQ/qR2b1NQ/N2Q2b1/5Bkn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 f4 g5 d4+ Kb4 h4 c5 a4 c4 a6 e6 d6 c3 a5 c2 f6 g4 a7 Na6 f5 Nh6 d5 Kc5 f7 b4 d7 b3 d6 b2 f6 Bg7 f8N Rg8 Ne2 Qe7 d8Q Rh8 d7 Kc4 Ra3 Nc7 a6 Nf5 h6 Bb7 h5 Ne8 h7 Ned6 h6 Bg2 Qd2 Ng3 Rb3 Rc8 a8N Rc6 Nbc3 b1B Bb2 c1B Na2 Nde4 Ng6 Qa3 Ne7 Kc5 Qc7 Rd8 h8Q Bf8 Rh3 Nh1 h7 Bh6 f7 Be3 f8R Bd3 Nac3 Bc4 Rf7 Bd5 Ng8 Kc4 Na2 Bb6 Qg5 Bce3 Rh6 Ba5 Bc3 Kd3 Rg6 Bab6 Qd6 Bc7 Bd4+ Kd2 Qh4 Kd1 Ng3 Ke1 Nf6 Kf2 Ng8+ Kg1 Ba1 Rb8 d8Q Rb4 Qg7 Rd4 h8Q Nc5 Kf6 e5 Ke7 e4 Q8h5 Bf4 Qgh7 e3 Q5h6 Ne4 Kd7 e2 Qh3 e1Q Q6h4 Bg5 Qb4 Be3 Qd2 Qe2 Bb2 Qb5 Bc3 Qbb4 Ba1 Rdc4 Be5 Rd4
qb2B3/1Q2B1N1/p4r2/1brQ1r2/1Bnq2R1/2N1RQQB/1PR4r/k3Kn1B w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 g4 Kd6 f4 e5 g6 h5 g5 c5 g7 c4 g6 e4 f6 h4 b6 e3 f7 c3 f5 c2 f6 h3 b7 e2 Nc3 a6 Rh2 Nc6 b8Q+ Qc7 Qb7 Qb6 Bg5 c1R Ra3 Nb8 Nf3 Be7 f8B Rh6 f7 Qb4 Nh4 Rc2 Qd3 Nd7 Qg3+ Ne5 Bg2 Rh7 Bh1 Nf6 g8B Nh5 g7 Rh8 Bh7 Rb8 g8B Bd7 Bf5 Bb5 Rf2 h2 Bh3 Re8 Bh7 Rc8 Bg6 Rc5 Rf4 Rh6 Rg4 Nf6 Rb3 Ne4 Bf6 Nd2 Bh5 Nf1 Bg6 Rc7 Nf5+ Kd7 d6 Ke6 d7 Rc5 d8R Bd6 B6e7 Nc4 Bh5 Rf6 Rc8 Bf4 d5+ Ke5 Be4 h1Q Ng7 Kd4 d6 Qf3 d7 Bb8 Bd5+ Kd3 d8Q Rd2 Bc6+ Kc2 Qd5 Qe4 Ra3 Qd4 Rc7 Qa5 Rc8 Qd8 Bg6+ Kc1 Be4 Qe8 Bh1 Qd8 Be8 Kc2 Ne4 Kb1 Re3 Ka1 Nc3 Rc2 Qdg2 Rcf5 Bb4 Q8d5 Bfe7 Qf3 f8Q Rd2 Qbc7 Qa8 Qg8 Rc2 Q2f3 Rd2 Qgd5 Rc2 Kf2 Rd2 Qcb7 e1R+ Ne2 Rc1 Rc6 Rc3 Ke1 Rcc2 Nc3 Rh2 Re2 Rd2 Rce6 Rd3 Rc2 Rdd2 Re3 Rdf2 Qf7 Rc5 Q3d5 R2f5 Qdf3 Nd6 Qf7d5 Nc4
6qK/3Q1QP1/1BQnbb2/1r1n1B1b/2NN1Bb1/7q/1RR1N1Qp/kNQ3r1 w - - 0 1 illegal: No possible last move
4NbkN/1qRBp1b1/2B4q/1N2N2K/3Q1Q1P/1N1bQ1b1/rr1nQ3/2nR2B1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 g5 Kg4 a5 h4 d5 f4 d4 b4 a4 c4 d3 c6 d2 c5 a3 b6 a2 h6 Rh7 c7 Qd3 c6 Qe2+ Nf3 Ra7 b7 Qe1 b5 Ra3 b6 Rb3 Nd4 Qe3 Nc3 Qe5 Ncb5 Rb1 Kh5 g4 Qe2 d1Q Nb3 g3 Be3 g2 Bg1 Na6 b8Q Qe4 b7 Nc5 f6 Rc1 f5 Qdc2 Qa7 Qb1 b8N Bb7 c8N Qe3 c7 Qd4 Nc6 Rh8 h7 Qe3 Ne5+ Ke8 Qb6 Nd3 Qd4 Rc2 Rh3 Qb2 Rd1 Nc1 Rf3 Qd2 Rc3 a1B Rc5 Be4 Rc4 Bg7 f7+ Kf8 Ncd6 Bd3 c8B Qf4 Bd7 Nf6+ Kg6 Rd2 Ne8 Ne4 Rc7 Rg8 Kh5 Qh6+ Kg4 Rc2 h8N Nd2 Qee3 Qb1 Be2 Ra2 Bf3 Bc3 Bfc6 Qb2 Bh2 g1B Qe2 Qf4+ Kh5 Bf2 Bg1 Bh6 Nf6 Kg7 Ne8+ Kh7 f8Q Rg2 f6 Bg3 Qf7+ Bg7 Qg6+ Kg8 Qge4 Bf8 Qe4e3 Rf2 Nc5 Qb4 Nb3 Ba1 Nbd6 Qb6 Nb5 Qb7 f7+ Kh7 Qb6 Nc4 Q2f3 Bh6 f8Q Rfe2 Qf5+ Kg8 Neg6 Bf8 Q3g4 Be5 Qbd4 Beg7 Ne5 Reb2 Qge2 Nd2 Qfg4 Qf6 Qgf4 Qh6+
1B3k2/P2Qb1qb/r3Qnp1/5qR1/1B1QR3/N4n2/rb1bQ2Q/R3BNKB w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 b5 d4 e5 f4 c5 Kf2 b4 h4 c4 a6 g6 f6 e4 a5 c3 a7 b3 f5 b2 f7+ Ke7 a6 c2 f6+ Kd6 h6 Be7 f8Q Qc7 h7 Bb7 h5 Qc6 h6 Qc5 f7 Qb6 Qe2 Bc8 Qe8 Bf6 f8B+ Ne7 Bd2 c1B Be1 Qc6 Bg2 Bh3 Na3 b1Q Nf3 e3+ Kg1 Be5 Nh2 Bd7 Nf1 Bg3 Rh5 Rg8 h8Q Bh4 h7 Bd2 Rg5 Be6 Bh1 Nd7 Qf6 Qd3 h8Q Qb7 Qf4+ Ne5 Qfh2 Qc2 Qf7 Kd7 d6 Qf5 d5 Kd8 Qff6 Ke8 Qhg7 Bf7 Qe6 Bc1 Qh8 Bb2 Qg7 Rh8 Qgf6 Bg8 d7+ Kd8 Qff7 Bh7 Qg7 Ng8 Bfb4 Nf6 Qgf7 Rc8 a8R Re8 Ra7 Rc6 Qg7 Qc7 Rb7 Rb6 a7 Qc3 Rc7 Ra6 Rc4 Rf8 Re4 Qc7 Qef2 e2 Qd4 Rh8 Qh6 Qb7 Qh5 Re8 Bg3 e1B Q5e2 Bd2 Be1 Kc7 d6+ Kc6 d8B Nf3+ Kg2 Qg7 Bc7 Rc8 Bb8 Rd8 Qed5+ Kd7 Qa2 Rc8 Qe6+ Kd8 d7 Rcc6 Nb5 Ra2 Na3 Ra6 Q6c4 Bg3 Qe6 Bd6 Kf2 Ne5+ Kg1 Bc5 Qd5 Ke7 Qe6+ Kf8 d8Q+ Ne8 Q6c4 Be7 Q8d7 Nf6 Qce6 Nf3+
NR6/pq1b2B1/R2Bb3/KP1nB1b1/3n1Q2/1Q1Q2BN/Bb1rr1k1/2Q3qN w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 d4 Kd6 Kd2 e5 Kc3 c5 g4 h5 b4 c4 g6 e4 g5 e3 f6 h4 b6 e2 f7 e1Q+ Nd2 h3 f5 h2 f6 Qe6 b5 Qe1 Kb4 c3 g7 c2 g6 Qd7 b7 Qe2 Ra6+ Qc6 Nh3 Bf5 Ka5 Qf2 Bc4 Qe1 Ba2 Qe8 Ne4+ Kd7 d6 Rh5 d5 Bg4 Bb2 c1B Be5 Ne7 g8Q Qcc8 g7 Qc4 Nef2 Bb2 Qc1 Kd8 d7 Qc5 Qh7 Qc8 g8Q Be6 Qd3 Bh6 f8B Qg6 f7 Qg1 Qdd2 Rg5 Qf4 Rg2 Qgg3 Bg5 Bfg7 Qc6 f8B Qc8 Qb3 Nbc6+ Ka4 Nd4 b8B Qb7 Ka5 Qf1 Rg1 h1B Bbd6 Rh2 Bb8 Bf3 Nh1 Bfg4 Rg2 Qg1 Rf2 Ng6 Bfd6 Ne7 Rc2 Rf2 Rcc6 Re2 Rcb6 Ng6 Bdc7+ Ke7 d8N Kd7 Bcd6 Ne7 Bbc7 Rc8 Bb8 Rcc2 Bbc7 Bg8 Ne6 Rcd2 Bb8 Bf7 Nc7 Bfe6 Na8 Bgf5 Bb4 Bg4 d6 Nd5 Bc5 Bf7 Bc7 Ke6 Bb8 Be8 Ba3 Bc6 d7 Bf5 d8Q Bg4 Qh2 Kf5 Bad6 Ke4 Bg3 Be8 Bde5 Bf7 Bbd6 Bd7 Qf2 Bfe6 Qff1 Qc8 Rb8 Qb7 Qff6 Nc3 Qh6 Kf3 Qhf6+ Kg2 Qff8 Bc8 Qf4 Nd5 Qd7 Bg4 Qdf5 Bd7 Qfd3 Bge6
3Nn1QQ/3qB3/3QRBpr/2qR1QP1/2k2r2/1nr2BK1/r1NB1Rr1/2Q3b1 w - - 0 1 illegal: No extended proof kernel
nNBBnN2/Q4q2/p1Q1B1B1/P3Kqbq/2Q1RQ2/RN1b2qk/4B3/5b1r w - - 0 1 legal: proof: d4 g5 h4 c5 g4 e5 dxe5 c4 f4 c3 fxg5 Bd6 g6 Ke7 g7 Ba3 bxc3 Ke8 c4 Bd6 c5 Bf8 g5 b5 c6 a6 c7 Nc6 h5 Rb8 Rh2 Na7 Rh3 Rb6 Rh1 Rg6 hxg6 Qf6 Na3 Qe7 Nb1 Qd8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 e4+ Ke6 a4 h5 c4 d5 c5 f5 a5 b4 c6 h4 Ne2 f4 Qa4 h3 Ra3 f3 Nf4+ Ke7 e6 b3 e5 b2 Be2 f2 Re1 f1B Nd2 b1Q Nb3 Nh6 g8N+ Ke8 g7 h2 e7 Kf7 Ne6 Kg6 e8B+ Kf5 g6 h1Q Nf6 Qa2 g8B Ng4 g7 Be7 Bg5 Qd6 Nf8 Qh5 e6 Qg3 N6d7 Nf6 Nb8 Bb7 Bgf7 Nc8 g8Q Nb6 c8Q Na8 c7 Bc6 Qc4 Bb5 Qb7 Rh6 Qa4 Bd3 c8B Rh8 Bed7 Ne8 Qa7 Rh6 Bh4 Bg5 e7+ Kf4 Bde6 Rh7 Kc5+ d4 Kd5 Qhg4 Bg6 Rh6 Bd1 Rh5 Re2 Kf3 Re3+ Kg2 Re4 Kh3 Bf3 Qaf2 Be2 Qf7 Qb4 Bc2 Qd6 d3 Qf4 d2 Kd4 d1Q+ Ke5 Nec7 e8Q Bd3 Qa4 Ne8 Qc6 Qh7 Raa4 Be7+ Kd4 Kh2 Bed7 Qf3 Qgc4 Qf7 Ra3 Kg2 Bg5 Rh1 Be6 Qh5 Bf3+ Kh2 Ke5 Qe2 Bg2 Qeg4 Bf3 Kh3 Be2 Qhh7 Bf6 Bd8 Bg7 Bg5 Bf6 Qh5 Bd8 Qgf5+
7q/br4bp/Bk2bb1N/N1rQ1rBP/5Rn1/Q2QQ1B1/R2q1BN1/2K3B1 w - - 0 1 illegal: No possible last move
R4Kb1/1r6/1RBk2p1/2qNn2Q/2bN1qPB/1B3Nn1/b4Q1b/1RRn1RB1 w - - 0 1 legal: proof: f4 b5 c4 a5 a4 d5 cxd5 e5 axb5 g6 fxe5 f6 h4 Ra6 h5 Rd6 h6 Rd7 Ra4 Nc6 Ra1 Rg7 hxg7 Nb8 Kf2 Kd7 Ke3 h5 Kf4 c5 b4 f5 d4 h4 e4 a4 b6 a3 e6+ Kd6 e5+ Ke7 Kg5 f4 b5 f3 b7 h3 d6+ Ke8+ e7 Kd7 d5 f2 b6 h2 Bb5+ Nc6 b8R f1B b7 c4 Nc3 a2 Nf3 Qb6 e8R Rh3 Be3 Qc5 Rc1 a1N Bg1 Nf6 g8B Be2 g4 Bd3 Qe1 Be2 Qf2 Bf1 Ne2 c3 Ned4 c2 Re6 Qb4 Ra8 Rh6 b8R Kd8 d7 Kc7 d8B+ Kd7 d6 Bc4 Ba4 Qc5 Rbb1 Nh5 Bb3 Ng3 Kf6 Bg7+ Kf7 Rh7 Bh4 Bb7 Rf1 c1Q Ba4 Bh8+ Kf8 Nc2 Rf6 Ba2 Bgb3 Ne3 Re6 Nd1 Rf6 Bc8 e6+ Kd8 e7+ Kd7 e8N Qf4 Bb5 Ba6 Nc7 Rg7 B5a4 Bc4 Nd5 Re7 Nb5 Ne5 Rc1 Kc6 d7+ Qd6 d8Q Rb7+ Kg8 Bg7 Qa5 Kd7 Rb1 Qc5 Rb6 Bf8 Rc1 Bd6 Nbd4+ Qc6 Rb5 Qc5 Kg7 Bc7 Rb4+ Kd6 Bc6 Bb8+ Kg8 Bc7 Rb6 Nf7 Bd7+ Qc6 Ra7 Qe4 Ne7 Ne3 Ra1 Ngf5 Rfc1 Nd1 Ra8 Qe5 Qa4 Kc5 Kf8 Qg3 Qa7 Bf4 Qa5+ Kd6 Rab1 Be5 Qfd2 Bf4 Be3 Be5 Rf1 h1B Nh2 Bhd5 Bg1 Qe3 Nhf3 Bh2 Qb5 Qf4 Qf2 Ng3 Qa5 Be6 Qf5 Ne5 Nd5 Bg8 Be8 Qe3 Qh5 Qe4 Rb4 Qc5 Bc6 Qe3 Rb6 Qf4+
1k4r1/3Rn1pK/1N1b1N2/1R1QrqqR/5NP1/2N4N/3q1B1R/BnqB2Qn w - - 0 1 illegal: No proof kernel
1n1QB1B1/B1q1nB2/2qQp3/4r1Q1/k2r1RNK/1rr1P3/bQ2N1N1/4R1Bn w - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 b4 fxg5 b3 h4 e6 g6 Qd7 g7 Nf6 g5 Qe7 g6 Qd8 axb3 Be7 b4 Ng8 b5 Bg5 hxg5 Ke7 Rh6 Kd7 Rh1 Ke8 Kf2 Kd7 Kg3 c5 d4 a5 b4 f5 b6 h5 b5 a4 d6 a3 d5 f4+ Kh4 c4 b7 c3 b6 f3 Nd2 a2 Nc4 c2 Be3 Ne7 g8N c1R g7 f2 g6 Na6 b8B Qc7 b7 Nc5 Ba7 Rb1 b8Q Rc1 Nh6 Qc6 g8B Ba6 g7 Rc3 Bf7 Rd8 Qb2 Rab8 g8B Rbb3 Ng4 Bb5 Qd4 Na6 Re1 a1R Rh3 Ra2 Rf3 Nb8 Rf4 Ra5 Qg7 Ba6 Qg5 Rab5 Bg2 f1Q Bed4 Qc7 Nce3 Qf3 Bh1 Ra5 Ng2 Bc4 Bf2 Rc5 e3 Rcb5 Ne2 Qe4 Kh3 h4 Bg1 Ra5 Kh2 h3 Kg3 h2 Kh4 Kc8 d7+ Kb7 d6 Kc6 Rf6 Re5 Rf4 Re8 d8Q Kb5 d7 Ka4 Rf2 Qec6 Rf4 Q7b6 Qc7 Rd8 Qd6 Qbc7 Bh5 Rf8 d8Q Rff5 Bg6 Re4 Bh5 Rfe5 Bhf7 Rd4 Re4 Qa6 Ngf4 Rb6 Bg2 Ba2 Bh1 Rdb4 Rc4 Qb5 Bc6 h1N Bce8 Qbc6 Ng2 Rbb5 Re4 Rd4 Rf4 Rbb3
nb1r2q1/kBpnr2Q/1N2q2r/q2B3N/2P5/3rB1NQ/2Q1BBK1/1NR3R1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Be7 g4 Bb7 h5 Be4 Ra5 Bd3 Ra1 Bg6 hxg6 Bf8 Kf2 f5 c4 h5 e4 a5 b4 d5 e6 f4 e7 Kd7 e8B+ Kc8 b6 Kb7 g7 a4 e5 h4 e6 d4 b5 f3 e7 d3 g6 d2 g5 a3 Nc3 h3 Nge2 a2 Bc6+ Kc8 e8N h2 Qc2 d1R Rg1 Qe7 b7+ Kd8 b6 h1Q Nf6 Qf7 Nh5 Bd6 Be3 Be7 Rc1 a1Q Nb1 Bb4 Kg3 Nf6 Kf2 Qa2 g8B Nbd7 g7 Qh3 g6 Qa1 Be4 Rd3 Bc6 Qf8 Bf7 Qa2 g8Q Nd5 g7 Rh6 Qh7 Bc5 g8Q Qa5 Qg2 Qg8 Neg3 Qhg4 Qh3 Bd4 b8B Kc8 Be2 Bc5 Kf1 f2 Bd4 Qf5 Kg2 f1R Bg4 Qe5 Bf2 Re1 Ba7 Qd6 Bf3 Re7 Be2 Bd4 Bb5 Kb7 Bc6+ Ka6 b7 Rd8 Bc5 N5b6 Bfd5 Na8 Ba7 Be5 Bab6 Qde6 Bbe3 Nc5 b8N+ Kb6 Q7f5 Bd4 Nd7+ Ka6 Nb6 Nd7 Na4 Bc5 Qh7 Ba7 Nb6 Bb8 Bb7+ Ka7
n6R/Q3Rbn1/N4R1p/4QRQP/3BnN2/Qq3nb1/Qn1kn1K1/B2B1r2 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 a5 f7+ Kd7 g5 Ra6 f5 Rf6 gxf6 Bb7 Qb3 Ba6 Qd1 Bc8 Kf2 Kd6 b4 Ke5 d4+ Ke4 h4 e5 b6 g5 b5 c5 d6 a4 d5 a3 b7 a2 b6 c4 d7 g4 d6 g3+ Kg2 c3 Qc2+ Kd4 Be2 e4 Be3+ Ke5 Nh3 Nh6 Bd1 Na6 b8Q Nc7 b7 Na8 Qa7 Qb6 d8Q Qb3 b8Q Be6 d7+ Bd6 f8R Bf7 Bd4+ Kd5 h5 Kc4 Re1 e3 Nf4 e2 Qda5 Be5 d8B Rg8 Qc1 c2 Nc3 Rg7 Qca3 c1N Rh8 Nd3 Ne4 Nb2 Nc5 Rg5 Rb1 a1N Na6 Rg8 Qa2 Rf8 B8b6 Bc7 Qe8 Be5 Rf1 Bd6 Qee5 e1N+ Kg1 Nf3+ Kg2 Bc7 Bc3 Bd6 Bbd4 Bb8 Rc1 Bd6 Rc2 Bc7 Re2 Bb8 Kh3 g2 Re4 g1N+ Kg2 Ne2 Re3 Bg8 f7 Bd6 f6 Nf5 Q5a3 Ng7 Qg5 h6 Re7 Rc8 f8Q Bf7 Qg8 Rf8 Qh7 Bc7 Qhf5 Bb8 Qe5 Bd6 Ng6 Kd3 Rf2 Qb4 Rf1 Nb3 Rf2 Nbd2 Rf1 Bc4 f7 Ne4 Rf2 Qb3 Rf1 Na4 Ba1 Nb2 Nf4+ Kd2 Rf2 Rd8 f8R Bf7 Rf1 Rc8 Rf2 Rc1 Rf1 Be8 Rf5 Bf7 Bc2 Re1 Bd1 Bc7 Rf2 Rf1 Ng6+ Ke1 Rf6 Bb8 Qea5+ Nfd2 R2f5 Bg3 Qe5 Nf3 Nf4 Kd2
5b2/1Q5p/B3k1rQ/2Qn1Rb1/1R1b1n1b/3R1NNP/b1R1rKNR/3b1QB1 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Qf6 cxd5 Qf5 gxf5 Ba6 Ra5 Bb7 Ra1 Bc8 b4 Kf7 d4 a5 e4 c5 f6 g5 d6 g4 b6 f3 e6+ Kg6 e5 Kf5 d5 g3 h3 c4 e7 c3 e8R c2 e6 g2 b7 a4 f7 a3 e7 a2 b5 Ra5 b6 Bh6 f8Q+ Nf6 d7 Rc5 d8N Bd7 d6 Ke5 Nc3 Ba4 d7 Rc7 Ne4 Bg7 Ne6 Rc3 d8R Kf5 Rh2 Rb3 Nf4 Nd7 b8R Rg8 b7 Nc5 Ba6 Ne6 Be3 c1B Ng3+ Ke5 Rb1 a1B Rbc8 f2+ Ke2 Bh6 Qf1 Rg6 Qg7 Ba3 Rf8 Bg5 e8Q Rc3 Rf7 Bf8 Qe7 Ra3 Rd2 Bd4 Qh6 Nd5 Rb4 Bb3 Rc3 Ba2 Qc5 Rb3 Rdc2 Bh4 Qa1 f1B+ Kf3 Bd3 Qf1 Bf5 Ke2 Bg4+ Ke1 Bd1 b8Q+ Nc7 Qb7 Ne6 Qca7 Kd6 Nf3 g1B Ng2 Bdf6 Bb6 Bfg5 Rf5 Nef4 Bd4 Ke6 Qc5 Ra3 Rcb3 Be3 Rbc3 Bc1 Bf2 Bb2 Bg1 Ba1 Kf2 Rb3 Rcc4 Re3 Rd4 Bb2 Rdd2 Bd4 Rd3 Re2#
1B3rr1/R5K1/R3N2Q/QNQb1qn1/3P1p1B/1Qn3QB/1pr2N1b/4kbB1 w - - 0 1 illegal: No proof kernel
2QK4/3b1b1r/1R1N1Rrn/1Rn1BN1p/1rB5/b2R1B1k/1Q1Np2P/4B1qB w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 exd5 c3 bxc3 Bh6 c4 Bg7 c5 Bf8 Kf2 Kd7 Kf3 e5 Kg4 a5 Kf5 h5 d4 e4 g4 e3 c4 f6 d6 e2 d5 a4 b6 a3 g6 a2 b7 Ra5 g5 Nc6 b8R Ne5 g7 Rh7 g6 Ra7 c6+ Ke8+ d7+ Ke7 c5 Rb7 c7 Nf3 c6 Rb3 Bg2 Nd2 Bf3 Rh8 Rb6 Rb2 Qb3 Ba6 c8Q Rh6 c7 Nf1 Nd2 Bc4 Rb1 Qe8 d8R Rc2 Bb2 a1R Be5 Rh7 Qb2 Ba2 Rdd6 Rc4 Rdc6 Qd8 d6+ Ke8 Ke6 f5 Rb5 Nh6 g8B f4 g7 Ng3 Rcb6 Ne4 Rd1 Bb3 Rf1 Ra6 Rd1 Rh8 Bh7 Be7 g8B Kf8 d7 Ba3 Bf5 Rh7 Bh3 Ba2 Bhg2 Nc5+ Kd6 Rca4 Bc4 Rb4 Rf1 Qe8 d8B Bb3 Bh4 Qd8+ Qd7 Qg5 c8N Qg3 Kc7 Qe1 Be4 f3 Kd8 f2 Nd6 Qb1 Rd1 f1B Bgf3 Bh3 Qc8 Bd7 Be1 Ba2 Nh3 Qc1 Nf5 Qb1 Nf2 Qc1 Rb7 Rg6 R7b6 Qa1 Rf1 Qb1 Bcd3 Kf7 Bh1 Bd5 Bc4 B5e6 Bc6 Bd5 Nfe4 Ke6 Ned6 Qa1 Nf3 Qc1 Rd4 Qe3 Nd2 Qg1 B5g3 Kf6 Be5+ Kg5 Rd3 Kg4 Rf2 Bf7 Bcf3+ Kh3 Rg2 Rgg7 Rg6 Bfe6 Rf6 Rg6 Nh4 Bg8 Nhf5 Bf7
RNNR2Rn/Q4r2/1q1b1B2/2Rp1rp1/rn1N3B/2KBb3/k2P1QR1/5bB1 w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 b3 axb3 Qb6 b4 Qc7 b5 Qd8 h4 Kf7 f4 e5 c4 d5 f6 Ke6 b6 a5 c6 a4 f7 e4 b7 e3 c5 e2 h6 a3 c7 g6 h7 a2 c6 Bh6 f8R Bg5 f5+ Ke5 h5 Kd4 h6 Kc4 f6 Bg4 c8R Qe8 f7 Bf5 c7 Qd8 Bb2 Be3 Nf3 Bg1 Bd4 Qe7 Rh2 Na6 b8N Qf6 Nc3 Qg7 Rg2 Kb4 Ne4 Ka3 Nd6 Be3 Rcd8 Qf6 c8R Bd3 Rc5 Bf5 Nc8 Ne7 Rg8 Be6 f8Q Bh3 Qb1 Qd6 Qb7 Nb4 Qa7+ Kb3 Bf6 Qb6 Bh4 g5 Nd4+ Kb2 Qf2 Ng6 Rg7 Rg8 h8B Rf8 h7 Rf7 Rgg8 Rf5 Be5 Nh8 Bh2 Rf7 Bg1 Rf5 Rac1 a1R Rd1 Ra4 Ra1 Ng6 h8B Rf7 Bf6 Nh8 Rac1 Ka2 Ra5 Bf4 Rcc5 Bd6 Qc7 Ra7 Qd7 Rc7 Ra8 Rc6 Qa7 Rcc7 Be5 Rf5 Bf6 Rf7 Qf4 Na6 Kf2 e1B+ Ke2 Bf2 Kd3 Be3 Qf2 Nb4+ Kc3 Rf4 Bd3 Rf5 Rg3 Bf1 Rg4 Bef4 Rg2 Be3
1BnQ2R1/3bqKB1/3QN3/Q1pp3P/nQR1r3/R1bRr3/3NR3/3knB1b w - - 0 1 illegal: No proof kernel
2R1RB1Q/4bR2/r1b2n2/1p2Q1Qr/2RK2r1/3Q2qP/kp3nQN/3BNb1B w - - 0 1 illegal: Other
1BR5/n1R3Q1/2r2rR1/BpN1N2Q/2q1BPR1/5b1n/bb1pNKNk/1n1R4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 c4 Kf7 f4 e5 a4 b5 g4 h5 g6+ Kf6 g7 d5 g5+ Ke7 g6 Kf6 c6 e4 c5 h4 c7 d4 a6 e3 c6 d3 a7 e2 a5 h3 a6 h2 Nd2 Qd7 Kf2 e1N Ndf3 Rh5 Nh4 Nh6 g8R Nc2 g7 Nd4 Bg2 Qe7 Ne2 Ne6 Bd2 Qd7 Rg1 h1B Ba5 d2 Be4 Nf7 Rg6+ Ke7 Ng2 Nc5 f6+ Ke6 Rb1 Bb7 c8R Na4 c7 Nc3 Rc1 Ng5 f7+ Ke7 Rb1 Nc6 Rc1 Rb8 a8N Qd5 a7 Nb1 Nb6 Rh6 a8N Qc4 Na4 Na7 N8b6 Bd5 Nd7 Rb6 Ne5 Rf6 Nc5 Kd6 Nh4 Bf3 Ng2 Be7 f8B Be6 Qh1 Bf7 Qh5 Nh3+ Kg3 Be6 Rd1 Bf7 Rb8 Be6 c8R Bd5 Rb7 Be6 Bf5 Kd5 Rbc7 Bf7 Rg4 Rc6 Bg6 Bf6 Bd6 Be6 Rh8 Bf7 g8Q Bg7 Bc2 Rf6 Rh6 Bh8 Rhg6 Be6 Ncd3 Ke4 Qg7 Bd5 Nge1 Ke3 Nc5 Be6 Be4 Bf7 Kh2 Kf2 Ng2 Qa4 Rb7 Ba2 Bb8 Qc4 Rbc7 Rf8 Ne1 Kf1 Kg3 Rff6 Nc1 Kg1 Ne2+ Kh1 Qg5 Ng1 Kf2 Kh2 Ng2 Nh3+ Ke3 Qe6 Qf7 Ra6 Qh5 Rc6 Ned3 Rf5 Qf8 Bc3 Ne5 Rf6 Qg7 Bb2 Nh4 Ng1 Kf2 Qc4 Ng2+ Nh3+
6NR/B1N1Q1BB/1KbQ1BPR/N1pQ1n2/1r2q3/6QB/1p1bn3/2kb2rr w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 e5 Kc4 h5 Kb5 b6 d4 h4 a4 h3 f4 e4 g4 h2 a6 e3 a7 e2 f6 Kg6 f5+ Kf7 d6 e1R d7 Nc6 a5 Ba3 d5 Nb4 d6 Re5+ Qd5+ Re6 a6 Rh4 g6+ Kf8 g7+ Kf7 g5 Re4 Ne2 Ne7 g8N Rh4 Nd2 Nec6 Nb3 Rf4 Nc3 Nd3 Bh3 Rd4 Be3 Nc1 Na5 Qf8 d8B Qe8 d7 Ne7 Qe5 Ra4 Qg3 Bb4 Nd5 Bd2 Rb1 Rb8 a8B Ra1 a7 Ne2 Rbc1 Rd6 Rc6 Rg1 Bb7 Re6 a8Q Re5 Ka6 b5 Ba7 b4 Rb6 c5 Nc7 b3 Re6 b2 Kb6 Kf8 f7 Kg7 f6+ Kg6 f8B Nf5 Bg7 Re3 Rd6 Qe4 f7+ Kh5 f8Q Ra3 g6 Raa1 Bdf6 Rad1 d8Q Be6 Nh6 Bb3 Qfe7 Rdf1 Ng8 Bd1 Ka6 Re1 Bd5 Rb4 Bb3 Ref1 Qd5 Re1 Qb8 Ref1 Rd8 Re1 Bg2 Ref1 Qgd6 Kg4 Bh3+ Kf3 Re8 Ke3 Ba2 Rd4 Kb6 Kd3 Qg3+ Kc2 Qbd8 Kc1 Q8d6 Bc3 Nh6 Bb4 Rh8 Bd2 Ng8 Rb4+ Nb5 Bf4 Qdb7 Nfd4 Bg2 Be3 Nh6 Nf5 Bg8 Bf4 Bh7 Bd2 Qbd5 Re1 Ng8 Rgf1 Bc3 Rf4 Bcf6 Rh4 Rf1 Rh3 Rf4 Rg1 Rh4 Qe5 Rh6 h1B Qdb3 Rh2 Bh3 Bc6 Qbe6 Qe4 Qed5 Rc4 Nc7 Rhh1 Rh5 Rd4 Rh6 Rb4+
N4b2/1r1B1R1B/BQ1B2p1/1NNN3b/2k2pP1/3bRnr1/nr2R2B/1Qq2K2 w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 h4 g6 h5 d3 h6 Be7 cxd3 Qd6 d4 Qf6 d5 Qg7 hxg7 Bf8 d4 Kd7 e4 a5 b4 h5 b6 c5 e6+ Kd6 e5+ Ke7 b5 f5 b7 c4 d6+ Kd8 d5 c3 b6 a4 d7 Ke7 d8R a3 Rh3 h4 Nf3 c2 Rd7+ Ke8 e7 Kf7 e8N+ Ne7 e6+ Kg8 d6 a2 Nc7 Nec6 e7 Kf7 g8B+ Kf6 e8B Ne5 Nd4 Na6 b8B Ra7 b7 Nc6 Re3 h3 Bh7 h2 Na8 h1B Ba3 c1R Nb5 Nab4 N1c3 Rc2 Qb1 Ne5 Rf7+ Ke6 d7 Rb2 d8Q Bd7 g3 Be4 Nd5 Bd3 Qb6+ Bc6 Bd6 f4 b8N Rd7 Na6 Rb7 Be2 Bd7 Kf1 Bc6 Ne7 Bh1 Nd5 Bf3 Bc6 Bh5 g4 Rb3 Bb2 Rg8 Bd4 Rc3 Rh3 Nf3 Bg1 Rg7 Bh2 Rb8 Rf5 Rgb7 Rf7 Rb3 Be7 Ke5 Bd7 Rb2 Bc5 Rc8 Be7 Rc3 Nc5 Ra3 Nd6 Kd4 Nb5+ Kc4 Bd6 Ne5 Re3 Nf3 Qc2+ Rc3 Re1 a1Q Qb1 Na2 Rc1 Rcc2 Na3+ Kd4 Re1 Bf5 Ba6 Rg2 Qc1 Rg3 R1e2 Bd3 Qe1 Qb1 Nb5+ Kc4 Qd1 Qc2 Qb1 Qc1+
1Q5Q/qbnR4/np1NN3/B1r2B2/3b3K/1B1QR1P1/rR2pb2/1BRBrk2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 e5 f4 h5 Kf2 c5 Kg3 c4 a6 b6 f6 Kg6 f7 Kf5 a7 Ke4 g6 c3 a5 c2 f5 Nc6 d6 Rb8 a8B Bg7 f8R Nf6 d5 Qe7 a6 Bh6 a7 Rg8 d7 Rh8 d8R Qa3+ Bd3+ Kd4 g7 e4 g8B e3 d6 Rh7 d7 Ba6 Rh2 Qc3 Bb3 Bg7 Nh3 Ne5 Bae4 Qb4 a8B Nd5 f6 Rb7 f7 Qe7 Nf4 Nc6 Nd2 Ncb4 Nc4 Rc7 Rfe8 Rc5 Bd2 c1B f8Q h4+ Kg4 h3 g3 Bc8 Qh8 Na6 Nd6 Rh5 Rf2 h2 Ba5 h1R Bf5 Re1 Qf3 Bd2 Rc1 Rh2 Bb1 Bc3 Ra2 Rd2 Bd1 e2 Kh5 Qf7+ Kh4 Rc2 Bb7 Bd2 Bc6 Be3 Ba4 Bg1 Qb3 Be5 Qb5 Ke3 Qd3+ Kf2 Bb3 Bd4 Re3 Kf1 Ne6 Qg7 Ng5 Bf2 Ne6 R2c4 Rd2 Ra4 Rb2 Ra1 Rg8 Ra4 d8Q Qa7 Rg7 Ra2 Rd7 Bb7 Qb8 Ndc7
4BQ2/2r1B2p/1N1n2K1/1PbnB2R/3Q4/rpn1RN2/5NN1/kBrbN1qR w - - 0 1 illegal: Other
2qrn3/bR1n2pK/B4N2/Bb1RbNRR/pN3r2/7B/2Q1BQP1/kB2n3 w - - 0 1 illegal: No proof kernel
b1N2RBb/NR4p1/2N2B1R/BBbKPknQ/4R1rq/4rr2/2QRpn2/8 w - - 0 1 illegal: Other
2BQbRq1/1B3PrR/1N2N1B1/1Qn3r1/NbN2B1N/1kn2p2/1p2Q3/bK3n2 w - - 0 1 illegal: No proof kernel
n2R3Q/1q1QP1r1/2RK1b1N/2BQ4/kp1QbQ2/Nn2r1N1/r1Bp3n/2B4N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 d5 Kg3 Kd7 Kf4 Kc6 a4 f5 c4 b5 h4 b4 e4 d4 e6 g5+ Ke5 f4 a6 g4 a5 g3 e7 g2 e8Q+ Qd7 a7 f3 a6 f2 h6 d3 h5 Bb7 h7 Nf6 h6 Ng8 Nh3 g1R Qf7 Be7 Qf4 Rg3 Na3 Kc7 c6 Kb6 c5+ Ka5 c7 Qc8 c6 Qe8 c8Q Bg5+ Kd6 Qd8+ Qd7 Rf3 e5 Qb6 e6 Bd8 e7 Qe3 c7 Qe2 c8N Qd2 Ra2 Qe3 Rc2 Bd5 Rc6 Qe1 Rg1 Nf6 Rg8 Bb6 Rd8 Re8 h8N Re3 h7 Qd2 Nf7 Bd4 h8B Rg8 Nh6 Be4 Bg2 f1N Nf2 Ng4 Nh1 Ba1 Bd4 Rg7 Bc5 Bf6 Bh3 Ngh2 Bf5 Qg2 Qd2 Bg5 Qb2 Nd2 Qd4 Nb3 Bg6 d2 Bf5 Bb1 Bc2 Rg6+ Kc7 Rg8 Nd6 Ka4 Ne4 Rg7 Neg3 Bf6 Kd6 Qf3 Qdg4 Nd7 Qgf5 Rc8 a8Q Nb6 a7 Qe4 Qb7 Na8 Qbd7 Rc7 Qh7 Rb7 Qh8 Rb5 Rcc8 Qb7 Rc6 Ra5 Qde4 Nc7 a8Q Ra7 Qd4 Ra5 Qa6 Na8 Qac4 Ra6 Qcd5 Ra7 Bd1 Be4 Bc2 Ka5 Nb1 Ra6 Qfg4 Kb5 Qf4 Ra2 Na3+ Ka4
nqQ1Q3/2N1P3/3b2RN/4kp1r/1pRrB1R1/nQ2N2N/2rB1Q1K/2b2b1Q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg2 g5 a4 f5 h4 b5 e4 c5 d4 b4 e6+ Kd6 a6 c4 h6 c3 h7 c2 e7 g4 e8Q g3 e5+ Kc7 a5 Bh6 a7 Bd2 e6 Kd6 a6 Nf6 h5 Qb6 h6 Bc3 e7 Ne4 Rh4 Qd8 Na3 Nf6 Bd3 Ng4 Nh3 Nh2 Rg4 Rf8 h8Q Qc7 h7 Qb7 Be4 Qc6 Nc4+ Kc7 Bd2 c1B Qb3 Rf7 Ne3 Nf1 d6+ Kb6 d5 Kc5 d7 Kd6 d8N Qb6 Kh1 Nd7 Qd4 Qb8 h8R Rh7 Rhg8 Nb6 R8g6+ Be6 Qc5+ Ke5 d6+ Bd5 d7 g2+ Kg1 Rh5 Qc8 Bc4 Nf7+ Kd4 Nh6 Ke5 d8Q Bb5 Nc2 Ne3 Kh2 Nec4 Ne3 g1R Qd3 Rd1 Qe2 Bd4 Qf2 Bc5 Ra2 Na3 Rc2 Bf1 Rc3 Qb7 Rc4 Rb8 a8N Bd6 Nc7 Na8 a7 Qb5 Be1 Rd4 Bd2 Rb6 Bg2 Rc6 Be4 Nb6 a8Q Rc5 Qac6 Na8 Bc2 Qb8 Qh1 Rc6 Be4 Rd3 Rd4 Rc2 Rc4 Rd4
5R1b/N1B1pp1q/n4B1R/Q2BKbrQ/2R3NB/P1Q4n/6r1/RrB3kn w - - 0 1 illegal: No proof kernel
1RN1Rb2/3P4/qr3bR1/3Qr1BQ/2B2Q1N/1Rnp1b2/knKQ1pQ1/4n2B w - - 0 1 illegal: No possible last move
1nrR1B2/1rb1n1N1/1R1q2b1/1N2BBQ1/k1B5/3Q4/1QpnPpQQ/K1q1R3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Kd7 Kd2 g5 Kc3 a5 b4 c5 Kb2 f5 h4 g4 h6 f4 h7 g3 d6 c4 b6 Kc6 b5+ Kb7 d5 a4 d7 g2 d6 f3 e6 f2 e7 Nc6 e8B Qc7 d8R Bg4 d7 Rb8 h5 Nge7 h6 Ng8 Qd3 Nge7 Bf7 Nd4 Nf3 g1Q Nc3 Nb3 Bh3 Qc8 Rb1 Qg3 Ng5 Qc5 Ne6 Qf5 Ng7 Nd4 Ka1 a3 Re1 a2 Ba3 Qff4 Bg8 Bh5 Bf5 Be8 Bge6 Rg8 h8B Ndc6 h7 Qc1 Bd5 Qd6 Bf7 Ka8 b7+ Ka7 b6+ Ka6 Nb5 c3 Bc4 Ka5 Bc5 Rc8 b8Q c2 Qb7 Nb8 Qg2 Bg6 b7 Ka4 Ba3 Na6 b8Q Rc7 Qa7 Rb7 Qb6 Nb8 Qc7 Qc6 Qch2 Qd6 Ne8 Bh6 Be5 Be3 h8Q Bb6 Bb4 Bc7 Ng7 Nbc6 Rc8 Qd1 d8Q Qc5 Nd4 Qc1 Bd6 Nb8 Ne8 Nd5 Qdg5 Qf4 Kb2 a1N Qe5 Qc6 Ng7 Nb3 Qef6 Nd2 Ka1 Qb6 Bc3 Qc6 Rb6 Nb1 Nb5 Qc1 Bc5 Rd8 Bf8 Qd6 Bb2 Re8 Qfc3 Ne7 Qb3+ Ka5 Be5 Rd8 Qb2 Re8 Rd8 Ka4 Rd7 Rc8 Rd8 Nd2+
1rn1r3/QB2B2b/2N1Qq1N/RN3Q1b/p1n4B/P5NB/2n2p1k/q1K3RB w - - 0 1 legal: proof: g4 h5 gxh5 e5 e4 c5 b4 g6 bxc5 Be7 d4 Nf6 f4 Ng8 f5 Qb6 f6 Kd8 fxe7+ Kc7 dxe5 Nh6 e6 Ng8 e5 Kc6 Bh6 Qc7 Bc1 Qd8 Kd2 Kd5 e8Q Ke4 c4 Kf4 h4 Kg3 c6 a5 c7 b5 c5 d5 e7 f5 e6 g5 h6 f4 h7 f3 h5 f2 h6 d4 c6 d3 Qdh5 b4 Bh3 b3 Ba3 g4 Qef7 b2 e8Q Qh4 e7 Bd7 c8B Nf6 c7 Ra7 Ne2+ Kf3 Nbc3 b1N+ Kc1 Ra8 Nb5 Na6 Rg1 Nb4 Ng3 Bf5 Bb7+ Ne4 c8N Nd2 Nca7 Rb8 Nc6 Nd6 Qeg8 Qg5 e8B Nc2 Qgg6 Qh4 Qge6 Nc8 Be7 Nc4 Qhg6 Rf8 h8B Qf6 h7 Be4 Bd7 Re8 Bg7 Bf5 h8N Kf4 Qh5 Bh7 Qc5 Kf3 Qa7 Kf4 Qf8 Kf3 Nf7 d2+ Kb1 d1B Nh6 Kf4 Kc1 Bf3 Bg2 Be2 Bh1 a4 a3 Bd1 Rb1 Bf3 Rb3 Be2 Rd3 Bd1 Rd5 Be2 Ngf5 g3 Re5 g2 Ng3 Bh5 Rc5 Qf5 Bgf6 Kf3 Bh4 Qf6 Nc3 Kf4 Ra5 Kf3 Nb5 Kf4 Nhf5 Kg4 Qff7 Kh3 Nh6+ Kh2 Qe1 Qg6 Bh3 Qe6 Qf5 Qf6 Rf1 g1Q Qee6 Qg2 Rg1 Qd5 Be4 Qde5 Bh1 Qa1+
2Q5/3rQrbk/4Q1Nq/5Np1/p2nQRPb/B2KRR1n/Q2N3q/2N1bB2 w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 f5 exf5 b4 h5 b3 axb3 Bd7 b4 Be6 b5 Bf7 Na3 Nc6 Nb1 Bg6 hxg6 Nb8 Ke2 h5 b4 c5 d4 e5 g4 a5 f4 h4 f6 a4 f5 h3 b6 e4 f7+ Ke7 b5 Kf6 g7 e3 b7 c4 d6 c3 b6 h2 d5 c2 d7 Nc6 b8N Nge7 g8Q Qc7 d8Q Na5 d6 Qc5 b7 Rh7 d7 Ra7 Qd2 Rg7 Ba3 c1B Nc6 Ra8 b8Q Qe5 Qbc8 Qe4 Qe8 Ra7 d8Q Rc7 Nd4 Qg2+ Kd3 e2 Qa2 e1B Nge2 Nb3 Nd2 Bb2 Nc1 Bc3 Qdd7 Nd5 Qe4 Bd6 f8N Bdg3 Ng6 Bh4 Qdd8+ Rge7 Qge6+ Kg7 f6+ Kh7 f7 Red7 Nf5 Bg7 f8R Nd4 Qde7 Qf2 Rg1 h1Q Rg3 Qfh2 Rf3 Ra7 Rb1 Rab7 Rb3 Nf4+ Kc4 Nh3 Rbe3 Qd6 Kd3 Qhh2 Nh6 Rbc7 R8f4 Ra7 Nf5 Rac7 Qee8 Qf8 Q8e7 Qf6 Ne5 Qh6 Ng6 Ra7 Qec5 Rf7 Qce7 Rd7
3N1Rnn/B4NBN/QR1q2q1/2p1rb2/3p3b/P3B2B/1Q3RNk/1bK2B1r w - - 0 1 illegal: No proof kernel
Q2QBK2/r1RB1Nn1/5B2/1P1BBpqp/1q2NQ2/k1bQb3/b6N/1r3n1R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 c4 g4 c3 d4 c2 b4 a4 e6+ Kd6 e5+ Kc7 b6+ Kb7 g6 a3 b5 a2 d6 f6 g7 Ra5 Kg6 f5 Kf7 Ra8 d7 Ba3 g5 Ne7 g8Q Nbc6 g6 Nd5 g7 Nce7 Nd2 Nc7 d5 Bc5 d6 Ra4 Bc4 Rh6 Ngf3 Bd4 Bd5+ Nc6 e7 Ne6 e8B Qc7 Nh2 Bc5 Bb2 c1Q Ne4 Be3 Qd3 Rh7 Qh8 Qc5 Rac1 a1B Bd4 Qb8 d8B Rb4 d7 Rb1 Bf6 Bc3 d8Q Qb4 Bd7 Qa7 Qhf8 Qaa3 Rc2 Qc1 Ke8 Qg1 g8N Qg5 Nh6 Ng7+ Kf7 Qc4 e6 Qb4 Bc4 Ne7 Bde5 Nd5 e7 Bg1 e8B Ne3 Kg8 Nf1 Nf7 Be3 Qfd6 Ka8 b7+ Ka7 Bde6 Bd7 Bcd5 Bc6 Qa8+ Kb6 Qe7 Bd7 Kf8 Bc6 b8Q+ Bb7 Ned6 Kc5 B6d7 Bc8 Qd8 Bb7 Bg2 Bd5 Rc1 Ba2 Bd5 Qa3 Ne4+ Kb4 Bd4 Qa5 Qf4 Ka3 Rc2 Rh6 Bfe5 Ra6 Bf6 Ra7 Bde5 Qa4 Rc1 Qb3 Rc2 Bb2 Rc8 Bc3 Rc7 Qb4+
q3N1K1/1N1Q1R1q/Nb1rQBP1/B3B3/n5N1/qBR2pp1/b1r1n3/2k1BR2 w - - 0 1 illegal: No proof kernel
rB2B3/1B1QQ3/1B2bNpP/2nQN3/R6N/b1qN3r/Kqr1n1pk/3BR3 w - - 0 1 illegal: Other
BQb5/b3Q3/BqnPN1B1/2b3N1/2QBQ1K1/pQR1qR1n/1N1k1pr1/4r3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 a5 h4 g5 e4 f5 d4 c5 b4 f4 e6 Kd6 e7 a4 e8B a3 h6 c4 h7 c3 h5 c2 e5+ Kc7 h6 Kb6 d6 Qf6 e6 Qf7 d5 Bd7 e7 Nf6 Qd4+ Kb7 b6 Bc8 b5 Ne4 d7 Nf2 d6 Ra5 d8N+ Ka8 Rh3 Qd5+ Qe4 Be6 b7+ Ka7 Bb2 Kb6 Bd4+ Qc5 Nd2 c1Q Bc6 Bg8 e8B Bc4 Bg6 Bg7 Ne6 Re8 Rg3 Nh3 Kg4 f3 h8Q Re7 Bd5 Nc6 h7 Ra7 b8Q+ Ka5 b6 Kb4 b7 Ba6 Nc4 Qb6 Qbf8 Qe3 b8Q Bc8 Qhg8 Re8 h8Q Rae7 Bc5+ Kc3 Qh4 Bd4 Nb2 Kd2 Rc1 Rh7 Qe7 Rh8 Rc3 Rh5 Bb4 Bc5 Ba6 Rh8 Kf5 g4 Qgf7 Nf4 Nh3 Rh7 Ng5 Nh3 Rg1 g3 Kg4 g2 Rf1 g1B Qg8 Na7 Ba8 Nc6 Qgf7 Nf4 Qg3 Rh2 Qh4 Nh3 Ba5 Qb5 Bb6 Qb3 Ba7 Qb6 Qc4 Bf2 Qb3 Bg1 Qf5 Bf2 Qe4 Bb4 Qf8 Qc7 Qef5 Qe2 Nd8 Qd3 Qg3 Re1 Qf4+ Be3 Qfc4 Bd4 Bc5 Qe3 Qe7 Qa5 Nde6 Qb5 Rg1 f2 Rg3 Qb7 Qe4 Qb5 Bb6 Qa5 Bc7 Ba7 Bb6 Qb5 Bc5 Qb6 Bd4 Bc5 Rf3 Rg2+
3NKQB1/5N1n/1r1P4/Nk2qQ1r/p3bBp1/1Bq3R1/2rbN2Q/1QnN3R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 g5 Ke4 a5 Kf5 c5 e4 f6 Kg6 g4 Kf7 f5 b4 a4 d4 f4 h4 f3 d6 f2 d5 c4 b6 c3 b7 c2 h6 Ne7 h5 Qa5 b5 Nbc6 b8N+ Kd8 e6 Qb4 e5 Bd7 h7 Qd4 h6 Ra6 b6 Bc8 b7 Rb6 d7 Kc7 d8N Qc4 Bf4 c1Q Ra3 Rb5 d6+ Kb6 Nc3 Rb4 Qf3 Nf5 Ke8 Nce7 Nbc6 Ng6 b8Q+ Ka6 e7 Rb7 e6 Qe1 Nge2 Ne5 Nd1 Nd7 Na5 Qcc3 Qe4 Nd4 Qf5 Rc7 Qbb1 Nb3 Bg2 f1R Bd5 Nc1 Bb3 Rg8 h8N Rg5 h7 Rh5 Nhf7 Bh6 h8Q Nf8 Qhh7 Bb7 Ng5 Rf3 Bc4+ Ka7 Kf7 Qa1 Be3+ Rc5 e8Q Rh4 e7 Qe5 Rd3 Rf4 Bb3 Kb6 Bd2 Rcc4 Rg3 Rc2 Qh8 Rb4 Qhh7 Nd7 Qf8 Nf6 e8B Be4 Bb5 Kc5 B5c4 Rb6 Be6 Kb5 Ke7 Qd5 Bg8 Qc5 Be3 Qc3 Ngf7 Bf4 Qhh6 Nh7 Ke8 Rh2 Qh3 Bg5 Qg2 Rh5 Qh2 Qd5 Bf4 Qdc5 Be5 Bd2 Bf4 Q5e5+
1N2bBN1/kr2b3/3p2Bp/2b3rB/3qn1Q1/P1R3QN/2B2QnR/K1qB1Q2 w - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 f5 bxa5 g5 h4 f4 hxg5 f3 exf3 Nc6 f4 Nb8 f5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 b5 Kc3 e5 Kb2 b4 c4 h6 f4 e4 g4 e3 f6 b3 c6 e2 a6 e1B f5 Rh7 f7+ Ke7 c5 Qc7 f6+ Kd8 a7 Na6 g6 Bh4 g5 Rg7 Qg4 Nb8 Na3 Qd6 Nc2 Kc7 Be2 Qe5+ Nd4 Qd6 Bd1 Bg3 Rh2 Bb7 Nh3 Rh7 g7 Qf4 g6 Ne7 g8Q Qf5 g7 Kc8 c7 Nd5 Nc6 Na6 Nb8 Nc3 a3 d6 Bg5 Nb4 Rc1 Na4+ Ka1 Nb2 Rc3 Bc6 Bc2 Kb7 c8B+ Kc7 Bd1 Qf2 Bf5 Kb7 Bfc2 Be7 f8Q Nc4 f7 Be8 c6+ Kb6 c7 Ne3 c8B Na6 Bb7 Nc5 Bbe4 Ng2 Bg6 Qd4 Bh5 Bf2 Qg3 Bd8 Be7 Kb7 Na6 Rc8 a8B+ Ka7 Nb8 Ne4 Bc6 Rc7 Bb5 Rc5 Bbd3 Rg5 Qg4 Nf6 Bdg6 Bg1 Qh8 Be3 g8N Ne4 Qe5 Rg7 Qef4 Rh7 Qf1 Bg1 Qg7 b2+ Ka2 Bf2 f8Q Bg1 Q8f5 Bf2 Bf8+ Be7 Qge5 Rf7 Qeg3 Rg7 Ba4 Be3 Q5f2 Rf7 Kb3 b1Q+ Qb2 Qh8 Rc1 Rf2 Rc3 Qc1 Ka2 Bc5 Qbe2 Qd4 Qb2 Rf7 Qbf2 Bd8 Bab3 Rb7 Bbc2 Qcd2 Ka1 Be7 Q4h4 Qf4 Qhg4 Qc1+
2QN1Rb1/R5N1/KRP3Q1/2R3Qp/1n6/RnqrB1qr/bpBNN3/6bk w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 Kf7 Kd3 h5 Kc4 d5+ Kb5 e5 g4 b6 c4 d4 f4 d3 a4 d2 c6 e4 g6+ Kf6 g5+ Kg7 a6 e3 a7 e2 c5 e1Q c7 Be7 a5 Nc6 f6+ Kf8 f5 Qg3 f7 Kg7 f8N Qd4 a6 Qe4 Qg4 d1B Ra5 Qc3 Nd2 Rh7 f6+ Kh8 f7 Kg7 Ne2 Be6 c8Q Rb8 a8R Qef3 a7 Nd4+ Ka6 b5 c6 b4 Rc5 b3 Rh3 Rb4 Rb8 b2 a8R Bdb3 Ra7 Ba2 Rb6 Qg3 Bg2 Bed5 Be4 Nf6 Bc2 Nb3 Qe4 Bd8 Qg2 Rh4 Ne6+ Kh8 f8N Rd7 Ng7 Bg8 Nfe6 Rd3 Qg1 Nd5 Qg2 Bf6 Nd8 Bd4 Rh1 Qh2 Nc4 Bf7 Nf5 Rhh3 g7+ Kh7 g8R Bb1 Rf8 Kg6 Qe4 Bf2 Be3 Qg3 Nd2 Be6 Rc1 Bg1 Rf1 Ba2 Ra1 Bb1 Ra3 Ba2 Qf4 Bf7 Qh4 Be6 Nfd4 Bf7 N4e6 Kf5 g6 Ke5 g7 Kf5 Qe7 Kg4 Nf1 Kf3 g8Q Kg2 Nd2 Kh1 Qg6 Bg8 Ng7 Qb8 Qh4 Qg3 Qhg5 Nb4+
8/2B3qQ/r1P2R2/1b4p1/BN2r1kN/B1b1Q3/qR1Bp1NB/nQ1nNK1n w - - 0 1 illegal: No possible last move
Q4bnN/5bqq/B1pRQR2/P1nRNp2/kB5R/1rr4B/r1R5/1B1N3K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg2 b5 e4 g5 a4 c6 d4 f6 h4 g4 h6 g3 d6 b4 a6 b3 a7 b2 h5 Qe8 d5 Bb7 h7 Qd8 e6+ Kc8 h6 Qa5 d7+ Kc7 d8R Kb6 d6 Qa6 e5 Ka5 e7 Bg7 e8B Qb6 d7 Ne7 e6 Ng6 e7 Bf8 Ba6 Qc5 Rh2 Qc4 Kh1 Qb3 Nc3 b1Q Bd2 Qc4 Nf3 Qg8 Ne5 Qc2 Qg4 Qb1+ Nd1+ Qb4 Qe6 Bc8 Bc3 Qf7 Rc2 Qg7 Rb1 Rg8 h8N Qh7 Bd2 Qc3 Bf7 Rg7 e8B Ne7 Bg6 Ng8 Bf5 Rg4 Beg6 Rb4 Bh3 Rb3 Rbb2 Kb4 Be1 Ka3 Rf2 Qd4 Rbc2 Qg4 Be4 Qgg7 Rf4 Rc3 a5 f5 Rh4 Ka4 Bd2 Re3 Bb4 g2+ Kh2 g1R Bed3 Rg4 Kh1 Rg2 Be4 Qhg6 h7 Rc3 Rh6 Q6f7 Rf6 Re2 Rb2 Rd2 Bb1 Rg2 Rc2 Rf2 Bd3 Na6 Be2 Nc5 Ba6 Rb8 a8Q Rff3 Re8 Rfd3 d8R Rd2 Rd6 Bd7 Rd8 Be8 Rd5 Qa7 R8d6 Bf7 Nhg6 Rb5 h8R Qe7 Rh4 Rg2 Rc1 Ra2 Rc2 Qh7 Nh8 Rb6 Rfh6 Qg5 Rf6 Qg4 Ba3 Rbb3 Bb4 Qgg7
Rb3Br1/bNRrBkqN/1p2R1r1/n6p/1KN1Q3/2q2N1B/1n2Q2P/1RN5 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Kd7 f6 Ra6 f5 Qe8 f7 Rd6 f6 Qd8 bxa3 Rb6 a4 Ra6 a5 Ra8 Nc3 Kd6 Nb1 Bf5 gxf5 Kd7 a4 e5 d4 g5 Kd2 c5 Kc3 h5 d6 g4 a6 e4 a5 e3 a7 b6 a6 c4 d5 g3 Ba3 g2 Kb4 c3 Nf3 g1Q Qe2 c2 Nc3 c1B Bh3 Qf2 Na2 Qc8 Rb1 Qg2 Re1 Bb2 Nc1 Bg7 f8R Rh7 f7 Nh6 f6+ Ng4 Rg8 Rh8 f8B Ke8 d7+ Kf7 d6 Rh7 Be7 Qc6 Rc8 Ne5 Rc7 Nc4 Bf8 Be5 d8N+ Ke8 Nb7 Nb2 d7+ Kf7 Na5 Qc3+ Kb5 Qg4 Bae7 Nc6 Nc4 Re8 a8Q Na5 a7 Qg6 Rc5 Bb8 Qe4 Qg3 a8R Ba7 Rc7 Bh8 Rd1 Qg7 Rd6 Rh6 Re6 Rg6 Qd1 e2 d8N+ Kg8 Qd2 e1R Nb7 Rd1 Qde2 Rd7 f7+ Kh7 Bb4 Red8 Bfe7 Rb8 f8N+ Kg8 Ba3 Kf7 Nh7 Rg8 Bac5 Qgd4 Bf8 Be5 Bce7 Bg3 Na2 Qg7 Nc1 Qc2 Kb4 Be5 Rcc6 Beb8 Rc7 Qcc3+
1Nn1R3/n1Nbq2R/1p1b4/kPq5/qR3BNQ/Q2r1B2/5pr1/K1BRB2B w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 h3 a5 b6 a6 Rh5 gxh3 Rh6 h4 Rh8 h5 Qd6 Ra2 Qc6 Ra1 Qb7 axb7 Ke7 Bh3 Kd8 Bf1 Ke8 h4 Kd8 b4 f5 d4 c5 Kd2 Kc7 Kc2 a5 Kb2 g5 e4 g4 d6+ Kc6 d7 c4 d8R Kb5 e6 a4 e7 g3 e8B+ Bd7 h6 f4 d5 g2 h7 f3 d6 f2 e5 Ra5 e6 Ne7 h5 Ka6 b5+ Ka7 h6 Bc6 d7 Nf5 e7 Na6 b8N Nb4 Qd3 Rg8 h8Q Nd6 h7 Nc8 Qa3 Kb7 Bh5 Kc7 e8R Bd6 Nf3 g1Q Bg2 Qe1 Nc3 Qe7 Ne5 Ra7 Be4 Rg2 Bhf3 Ra6 Rb1 Ra7 Qa2 a3+ Ka1 Ra5 Qb3 a2 Ng4 Ra3 Qb2 Rb3 Qd4 Ra3 h8B Rb3 Rh7 Ra3 Nd1 c3 Nde3 c2 Bd5 Rd3 Qa3 Be5 Rb2 Kd6 Qc4 Bg3 Bc3 Be5 Qe4 Kc5 Be1 Bd6 Qf4 Rh2 Bde4 Rg2 Nd5 Kc4 Qh6 Kc5 Bf4 c1Q+ Rb1 Qc4 Nc7 Qd5 Qh4 Kc4 Rd1 Qc5 Qc1+ Kb3 Qc3+ Ka4 Rb1 Nd5 Rb4+ Ka5 Qb2 Na7 Qc1 Rg1 Bh1 Rg2 Bf3 Qe2 Qb2 Ne7 Bc1 Qd1 Qa3+ Qa4 Reh8 Nec8 Rde8 Bd5 d8B Be6 Bdg5 Bd7 Bgf4 Qg5 Qb2 Qe7 Rhf8 Qa3 Rf5 Qc3 Rd5 Qc5 Qc3 Re3 Rd2 Rd3 Rd1 Qce5 Kb2 a1Q+ Kc2 Qa4+ Kb2 Qf5 Qa3 Qfg5 Ka1 Qc5
B2R2K1/1b4nR/1p1qqRb1/1P4pN/1N1r2B1/N1NB4/n3Nr1k/BQQ1r3 w - - 0 1 illegal: No extended proof kernel
3qR3/6P1/Np1Q4/2b1p1Qr/1n1BbNRB/b2q2rN/3N1B1k/nK1QN2B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 e5 Kc2 c5 f4 h5 g4 b6 a4 h4 d6 c4 a6 h3 a5 h2 f6 Kg6 d7 c3 a7 Rh7 f7 Ne7 d5 Nec6 d6 Be7 f8B Rh6 a6 Rh4 f5+ Kh7 g6+ Kh8 f6 Rh6 g7+ Kh7 g5 Kg6 g8Q+ Kf5 g6 Rh3 f7 Rh4 Nd2 Kf4 Ra4+ Kg3 Nh3 Bg5 Bb2 Rh7 Kb1 Nb4 Bg2 Qf6 d8B Qf1 d7 N4c6 Bc5 Na5 f8Q Bf4 Qd6 Qe2 Bh4+ Kg4 d8N Rg7 Nb7 Nbc6 Bcf2 Nb3 Nc5 Na1 Nd3 Bb7 Ne1 Nb4 Rg1 Rb8 a8N h1Q a7 Be3 Nc7 Bc5 a8N Bf3 Nd5 c2+ Kc1 Qb5 Ndf4 Qd3 Nc7 Rh7 Bc3 Rh5 Na6 Re8 Qg7 Rg8 Bcd4 Qh2 Bh1+ Qg3 Ne2 Be4 Rf1 Qgf3 Qge7 Qf6 Nef4+ Kf5 Rg1 Qf8 Rg3 Qd8 Rf3 Kg4 g7 Rgh8 Ne2 R8h6 Rf8 Rf6 Rh8 Rf3 Re8 Rg3 Kb2 Nc6 Rb4 c1B+ Ka2 Ba3 Ra4 Nc2 Kb1 N6b4 Nef4+ Qe2 Nfg2 Bg6 Ng1 Nd3 Rc4 Na1 Bb2+ Nf4+ Re4 Bf5 Bbd4 Bh7 Ngf3 Kh3 Ng5+ Kh2 Nh3 Nd3 Rg4 Be4 Ngf4 Qf3 Qg5 Nb4+ Nfd3 Nbc2 Ndf4 Qc3 Re7 Qd3 Re8 Nb4+
BRn2NB1/1Q2B1p1/Q1Nn4/n1pB1B2/2P3r1/4Q1r1/bRRq2bK/1Qq2k2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ke7 f4 Na6 e4 Rh6 e6 Nb8 f5 Qe8 Qg4 Kd6 f6 Be7 fxe7 Kc5 e5 Rh8 Qd1 Qd8 Kf2 a5 Kg3 f5 e8B d5 c4 d4 h4 c6 b4+ Kb6 h6 f4+ Kh2 d3 e7 d2 h7 c5 e6 a4 h5 f3 h6 a3 Bf7 f2 e8B a2 e7 Nd7 Na3 Ngf6 Nc2 Nf8 Ne2 Be6 Nf4 Ne4 Ng6 Ng3 Bc6 Ra4 e8B Ra6 Ba8 Nf5 Bfg2 f1Q Bg8 Qg5 Bd7 Nd4 Rb1 a1N Rb2 Qff6 Bgd5 Nf5 Nd4 Qd8 Nc6 Ra3 Qg1 d1B Qe3 Kc7 b6+ Kd6 b5 Bb3 b7 Ba2 b8R Nb3 b6 Na5 b7 Rd3 Bc8 Nd7 Nf8 Nb6 Rf1 Rd4 Rff2 Rg4 Rfc2 Bf7 Bce6 Nc8 Bd2 Bh5 Bc3 Rg3 Bf6 Bf3 Bd7 Bg2 Be7+ Kc7 B7e6 Nfd6 Bf5 Rg4 Qc3 Qc1 Qe3 Qd7 Bgf7 Rg8 h8Q Rg3 Qh7 Rh8 Ng6 Rf8 Bg8 Rf6 Nf8 Rfg6 Qe6 R6g4 Qe3 Qd8 Qg6 Qd7 h7 Qd8 h8Q Qd7 Qhh6 Qd8 Bh4 Qg5 Qee8 Qgd2 Qee3 Na7 Bd7 Qe2 Nd4 Ndc8 Be7 Qed1 Rd2 Qe1 Qb1 Nb5 Rdc2 Qc3 Bf5 Q3d2 Bf6 Kd6 Qg6 Re4 Be7+ Ke5 Qa6 Nbd6 Qe1 Kf4 Nc6 Nb6 Rc8 Kf3 Qg1 Ke2 b8Q Reg4 Qe3+ Kf1 Qbb7 Qde1 Re8 Qed2 Rb8 Nbc8
1N3Q2/BR1Pn2r/Q2r2pB/q1R1nN1b/2QN1b1K/pB3N2/q1B1n1N1/k7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 f5 e4 c5 h4 a5 b4 c4 d4 a4 e6 Kf6 h6 g6 e7 a3 e8B c3 h5 c2 h7 f4+ Kh4 f3 d6 f2 h6 Ba6 d5 Be7 b6 Ra7 d7 Bb7 d6 Ra8 b5 Bf8 Nc3 Qc7 d8N Ke5 d7 Nf6 Qd3 Qd6 Nce2 Nh5 Bf7 Qc5 Rb1 Ra7 Nd4 Ng3 Bb3 Ba8 b7 Nc6 b8N Ne7 b6 Nc8 b7 Ra4 Qa6 Nh5 N8e6 Rb4 Nf4 Nb6 Bd3 f1Q Ng2 Nc4 Rh3 Rb6 Ngf3+ Kd6 e5+ Kd5 e6 Ng7 e7 Qa5 e8Q Rd6 Qc8 Qe2 Bg5 c1N Bdc2 Qed2 Nbc6 Kc5 b8N Ne2 Nf5 Ne5 Ncd4+ Kb4 Rhh1 Be7 Rhc1 Bd8 Qcc6 Bc7 Qe4 Kc3 Rb2 Re8 h8Q Re7 h7 Bd5 Bh6 Be6 Ng3 Bg4 Ngf5 Bh5 Qf8 Rf7 h8B Re7 Ba4 Rf7 Rb6 Re7 Bcb3+ Kb2 Rc5 Ka1 Rb7 Qa2 Qg4 Ne6 Bc2 Rh7 Bab3 N6f4 B8g7 Nd5 Be3 Qb1 Bgh6 Qa2 Qe4 Ne7 Qed3 Nc1 Qdc4 Ne2 Ne6 Rc6 Rcb5 Nd3 Ba7 Bf4 Rc5 Ne5 Ned4 Rd6
1n1n4/B1KPR2R/N3prqb/1Q5B/1Qr2N1p/5Q2/qR1RB1R1/2q1kbB1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 c5 d4 a5 g4 h5 b6 c4 b7 a4 g6 e6 g5 a3 f6 c3 d6 c2 f7 a2 d5 Qb6 d7 Qa5 d8R Qc5 g7 Rh6 f5 Rf6 g6 Ra5 Na3 Qb5 Rb1 a1Q Be3 c1Q Nh3 Qe8 Nf4 Be7 f8R Qc4 Qf3 Qb3 Be2 Rc5 Bg1 Qba4 Rf7 Nh6 g8R Qf8 g7 Rc7 d6 Na6 b8Q+ Bb7 Nc2+ Ka5 Nb4 Rg6 f6 Nc5 Na6 Q1a3 b4+ Kb6 b5 Ka5 b6 Qfe8 Rb2 Bf8 Re7 Rc6 f7 Rf6 Rh2 h4 d7 Rc8 Kd6 Qc2 Rh8 Qc1 g8B Qa2 Rh7 Be4 b7 Bd3 Rg2 Bg7 f8Q Qg6 Rde8 Ka4 Rd2 Kb3 Bf7 Kc3 Qa7 Rc7 b8B Rc8 Qb6 Rc7 Nb4 Na6 Ba7 Nb8 Qb5 Rc8 Na6 Rc4 Qg8 Bf8 Rc8 Bg7 Rc6 Bf8 Kc7 Bg7 Be8 Nf7 Qf8 Bh6 Rc5 Nd8 Rb2 Qf5 Bh5 Qg6 Rc6 Qc2 Rc5 Kd2 Rc6 Ke1 Rc5 Nbc6 Rd5 Qc1 Rd6 Bf5 Rdd2 Bh3 Rg3 Bf1 Rg2 Nb7 Qb8 Nbd8 Q8b6 Nb8+ Q6c5 Ndc6 Qcb4 Nd8+
R4Q2/1p2N1BB/1pBb1Nq1/5RB1/r3Q1BP/3Q2Nr/1rn1Q1nq/k2K1b2 w - - 0 1 illegal: Other
4R2r/p2NR2q/1BBKPNn1/Bp4r1/1QB5/1b5R/k1qR1b1b/1nQBQ3 w - - 0 1 illegal: No proof kernel
4R2Q/1Rn2r2/7B/3kp1N1/q1rrnr1Q/4QPbK/bR2R2p/RB1N2QN w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 d4 e5 b4 c5 f3 h5 Kf2 a5 Kg2 a4 d6 h4 d7 c4 f6 Ke6 f7 c3 b6 a3 b5 a2 d5+ Kd6 b7 c2 g6 Ra5 g7 Nc6 b8R Qc7 d8Q+ Bd7 b6 Nf6 g8R Bg7 f8N Nd4 b7 Nc6 g5 Ra8 g6 Rh7 Qd3 Nd4 Ne6 Nh5 Nh3 Nf6 Re8 Qc8 Bh6 c1R Rh2 Nc2 Qe3 Na3 Nc3 Ne4 Nf2 Bf6 g7 Qc4 g8Q Ra4 Ncd1 Rf7 Nh1 Nb5 Ng5 Nc7 Bd3 Qb3 Bc2 Rd4 Bb1 Qa4 Qc8 Kc5 d6 Be6 d7 Rc4 d8Q Kc6 Qe7 Kd5 Qb4 Be7 Qbe1 Rf4 Q1g1 Bb4 Qh8 Be1 Qh7 Bf7 Kh3 Bg3 Re2 Bg8 Qg4 Bf7 Qh5 Bg8 Qh8 Rf7 Kg4 h3 Qh4 h2 Kh3 Rf4 Ra8 Rf7 b8R Rf4 Rb7 Rf7 Bd3 Rf4 Rab1 a1R R1b2 Ra3 Bb1 Rb3 Rf8 Rb6 Rfc8 Rbf6 Re8 Rf7 Raa7 Qb4 Raa2 Qa4 Ra1 R7f5 Rf2 Rc3 Rba2 Kd6 Ra3 Ba2 Rab3 Rf7 Rbb2 Rcc4 Rfe2 Kd5
4B1nB/3bB2r/3QR1Q1/2P1npr1/5N2/3Q2q1/1K1nnpR1/1BBNbkNN w - - 0 1 illegal: Other
3R4/NnKn4/3BQqk1/P2QBr2/3pR1r1/2N1bb1n/N1p1Q3/nBNQN3 w - - 0 1 illegal: No proof kernel
N1rBb3/3k4/3n3Q/p1pNnR1q/3Q1PQ1/b3NnBN/5n1Q/RQ1BrK2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 a5 d4 g5 h4 e5 d6 c5 d7+ Ke7 h6 e4 h7 g4 h5 g3 b6 e3 b5 e2 h6 g2 b7 Ra7 d5 Ra6 b6 Kd6 f6 Qc7 d8Q+ Qd7 f7 Ra8 Nd2 Nc6 b8N Nd4 b7 Ra6 Rh5 Nf6 Nc6 Nb5 b8Q+ Nc7 Nh3 g1N Ne7 Bb7 Rf5 Ba8 Qb1 Rg8 h8Q Rg7 h7 Rg4 f4 Bh6 f8N Rg2 Ne6 Nb5 Nc7 Bc6 Na8 Ne4 Qdg8 Bf8 Qg4 Qe8 Nc4+ Kd7 d6 Bg7 Qd4 Nf2 Ne3 Qh5 Bd2 Ra7 Bb4 Rc7 N7d5 Rc8 Qf8 Bf6 h8Q Be5 Qfh6 Rh2 Qde4 Bb2 Qed4 Bc1 Bg2 Ba3 Be4 Rg2 Bc2 Rh2 Bd1 Rg2 Kd2 e1N Bc3 Ngf3+ Ke2 Ned3 Kf1 Nde5 Be1 Ne4 Bh4 Re2 Bg3 Nf2 Q8h7+ Kd8 Qh8+ Be8 d7 Nd6 Nb4 Ke7 d8B+ Kd7 Nbd5 Qg6 Ng5 Qf7 Qh2 Qh7 Nh3 Qh5 Qh6 Re1+
5kBB/1B1Qb1b1/2K2Bp1/2N1b1RB/2rRrNQp/n2R1qQ1/5Pb1/n2Q4 w - - 0 1 illegal: No proof kernel
2BQ4/QQr1q2B/1n1KPNbB/1B5Q/Q2b2n1/1n1R1rN1/3p1pR1/1nk3N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 c4 g5 b4 g4 h4 g3 e6 a4 e4+ Kf6 b6 d6 h6 a3 h5 a2 h7 g2 b5 Bh6 c6 Bd2 e5+ Kf5 c5 Kf4 c7 Ke3 b7 f5 b6 f4 h6 f3 e7 f2 e8N Bd7 c8B Bg4 c6 Ra7 c7 Bd7 Rh3+ Kf4 Bb5 Qe7 Nf6 Be8 Bf5 Be3 c8B Bg6 e6 Nd7 b8Q Rc7 Nd2 Bd4 Rb1 a1N b7 Nb3 Qa7 Rc4 b8Q Rc7 Rh2 Ke3 Qg4 Rc4 Qbb7 Rc7 Ngf3 g1N Rg2 Ne2 Ng1 Rc2 Bfd3 Nc3+ Kc6 d5 Nde4+ Nd2 Qh4 Nb6 Rb3 Nb1+ Rc3 Qg7 Ng3 Qe7 Ba3 Nb3 Bc5 Qf7 Bf8 Kd2 Kd6 Kc1 Bf5 Qg7 Rd3 Rc7 Qe4 Bb2 Qea4 d4 Re3 d3 Be4 d2 Rd3 Ne7 Bf5 Rg8 h8Q Ned5 h7 Bd4 Be4 Qf7 Bh6 Ne3 Bf5 Rg7 Qd8 Ng4 h8Q Qe8 Be4 Rgf7 Bf5 Bh5 Bh7 Bg6 Nd5 Rf3 Nf6 Qf7 Qhe8 Qg7 Qf7 Bf5 Qh5 Bg6 Qa2 Qf7 Q2a4 Qe7+
Q1nq4/5Bbb/1k1BpBr1/1N2R1b1/1Qpn2Pb/3Q2Q1/1RrN2K1/3BR2Q w - - 0 1 illegal: No proof kernel
1b1n1R2/2N1kn1p/1Q4Q1/1b2B1r1/BNN1n1r1/1BKB1NpN/2nPR1q1/1Q6 w - - 0 1 illegal: No proof kernel
b2R4/r1b2rp1/qkn2N2/1N2QrB1/BNB3Pp/2Q4K/1rB3RN/1RN1n3 w - - 0 1 illegal: No proof kernel
1B4Q1/N4P1B/3b1pQ1/1Q2b1BR/BN4b1/1n1r4/1p1qnbr1/NR2BkNK w - - 0 1 illegal: No proof kernel
1Q3B2/Rnn1BPr1/5p2/2nb1BNk/r1NB1K2/pQb1RnR1/RRQ5/7q w - - 0 1 illegal: No proof kernel
2Q1R3/R1bn1pn1/1N4B1/1NkPBrB1/3n1pNr/7R/1N1Q2bB/2Nnq2K w - - 0 1 illegal: Other
2RQB3/3b1ppR/Q1bR4/1q3nPN/Rnr1k1rQ/5N2/2b2KRQ/1B2B2b w - - 0 1 illegal: No proof kernel
2b3B1/B3pbNQ/3Q2Q1/nkN5/1r1P1K2/bq1nR2Q/pB2B3/bRR3Qr w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 a5 b4 h5 d4 c5 g4 a4 f4 a3 g6 h4 g7 a2 f6 h3 d6 h2 g5 c4 f5 c3 f7 c2 b6 Kc6 f6 Nh6 g8Q Ra7 b7 Qc7 g6 Bf5 g7 Qa5 b5+ Kb6 d7 Bd3 Nh3 Qc3 d8Q+ Qc7 Be2 Ra3 Qe8 Qc6 Qh7 Qc7 g8B Ra8 Ng5 Bc4 Ne6 Qd6 Qg1 Qc7 Nd2 Qd6 Ng7 Qd5 Ne4 Nc6 b8B Ra4 Kf4 Ng4 Bb2 Rb4 Rc1 Nf2 Nc5 Na5 Qd7 Qb7 Qdh3 Be6 Qgg6 Bc8 Rhf1 h1B Ba7+ Kc7 b6+ Kc6 Rb1 Bd5 Rfc1 Bc4 Qg1 Kb5 Qhg6 Qd5 b7 Rh5 b8Q+ Qb7 Qe6 Rh1 Qbd6 Qd5 Qh3 Qf3+ Kg5 Qa3 Kf4 Qb3 Nge6 Bg7 f8Q Bh8 f7 Be5+ Kf5 Nd3 Qfh6 Bf4 f8R Bd2 Qhh7 Bc3 Kg5 Bd5 Ng7 Bde6 Rf3 Bf7 Ba3 Bb2 Re3 Ba1 Bb2 Rc4 Re1 c1B Rf1 Bd2 Rfe1 Bb4 Rec1 Ba3 Bf3 Ne5 Kf4 Rb4 Be2+ Nd3+
1QR2B1r/p7/2R1R1q1/1nN1bB2/2K1pBbQ/B1r3bn/kP1RRN2/4N2b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 f4 Kc5 g4 Kb4 f6 h5 f7 e5 b6 c5 d6 h4 b7 h3 g6 h2 f5 Be7 f8B Rh7 g5 Nf6 g7 Nc6 g8R Rf7 b8Q+ Bb7 g6 Qc7 g7 Nh5 f6 Qd7 Qe1 Kb3 Ra6 Nd8 Bh3 Qe8 d7 Nc6 d8R Na5 Nc3 Nc4 Qh4 Qb5 Re6 Qa6 Nd1 Qa2 Bf5 Qa4 Nf2 Nd6 Nf3 Nb5 Re1 h1B Re2 Qa6 Ne1 Ka2 Kc4 e4 d4 Bd6 d5 Bg3 d6 Nf4 d7 Nh3 Bf4 Bc8 Rc6 Re7 f7 Re6 Be7 Rh6 f8B Rh8 Re8 Qb6 d8N Qa6 Kd5 c4 Nb7 c3 Kc4 c2 Ba3 c1B Nc5 Bd2 Re5 Bc3 Ree6 Be5 Rd2 Qb7 Re2 Qf7 Rd2 Qg6 Re2 Rh6 Rh8 Rh7 g8R Rd7 Rg7 Rd3 Rd7 Rb3 Rdd2 Rd3 Rh7 Rf3 Rhc7 Rc3+ Kb4 Bd7 Rc8 Be8 Be7 Qh6 Qd6 Nd4 Rd8 Nb5 Qc7 Rc8 Qb8 Bh5 Rf8 Bg4 Rg8 Rc7 Rc8 Qg6 Bd6 Rh7 Bf8 Rd3 Kc4 Rh8 Ra6 Rb3 Rac6 Rc3+
R3q3/1r1brp1R/3Q1P2/1NKNB3/3Rnp2/3R1BrN/4b2b/1k1NRQqQ w - - 0 1 illegal: Other
KR1n2Q1/1n2kBNQ/Q1pN1pR1/B1n5/1bq2P1q/1B4r1/RrR1B2R/r7 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Bd7 exd7 Kg6 Rh5 Bg7 Rh1 Bf8 Kd2 e5 Kc3 a5 Kc4 h5 Kc5 a4 g4 c6 f4 a3 b4 h4 b6 a2 b5 h3 b7 e4 b6 e3 Be2 h2 Na3 f6 Qc2+ Kf7 g6+ Kg7 g5 Rh5 Nc4 Qe7 d8R Ra7 Nh3 Rh6 Bd2 Ra6 Ba5 Qc7 Rhg1 Ne7 d7 h1R d6 Kg8 g7 Kf7 g8B+ Kg7 g6 Nf5 Bf7 Rh2 Ng5 R6h3 Ne6+ Kh6 g7 Rh4 g8B Rg4 Ng7 Rgg2 Rh1 Rh3 Rh2 Nd4 Re8 Qc8 d8Q Qe6 Qc8 Ra8 Rc1 a1N Qf5 Ra7 Rc2 Qe4 Re7 Ra6 d7 Nab3+ Kd6 Nc5 d8Q Nbd7 b8R Nb7+ Kc7 Ndc5 Ra8 Nde6+ Kb8 Ra7 Nd6 Qc4 Qe8 Ned8 Re5 Be7 Qfd7 Ra6 Rg5 Rg3 Ra7 Rh4 Ka8 Rh5 Bb4 Ra1 Raa2 Rh4 Ba5 Rhh3 Bf1 e2 Qf8 e1Q Be2 Rb3 Qf5 Qh4 Qd3 Qd5 Qd7 Qe6 Qa6 Rb2 Qc7 Qe4 Bb3 Qa4 Bgf7 Rg3 Qg8 Qc4 Bb4 Na5 b7 Bf8 b8R Nab7 Ba5 Be7 Qe8 Bf8 Qe6 Be7 Qec8 Kh7 Rg6 Bf8 Be8 Kg8 Q7d7 Be7 Bf7+ Kf8 Qh3 Qg4 Qh7 Qh4 Nde8 Bd6 Qg4 Ke7 Qg5 Be5 Nd6 Bc3 Qg4 Bb4 Qc8 Nde6 Qcg8 Ned8
1kb1NRB1/R2n4/1B6/n1n2RQp/r2KNp2/1q4Bq/1QB2r1P/1RqQ1R2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 fxe5 d4 g5 d3 cxd3 Bb4 d4 Be7 d5 Bf6 gxf6 Kf8 Nc3 Kf7 Nb1 Ke8 Kf2 Kd7 Ke3 g5 b4 a5 d4 h5 b6 c5 b5 g4 b7 Kc7 d6+ Kb6 d7 Ka7 d5 c4 d6 c3 f7 c2 f8R a4 e6 a3 e7 a2 e8R g3 b6+ Ka6 Na3 g2 Nf3 g1N Nb5 Ne7 Ng5 Qc7 d8Q Qc6 d7 Ra7 Kd4 Nd5 e4 Qc7 e5 Qc6 e6 Rg8 e7 Qh6 Bf4 c1Q Bd3 Qb1 Ne4 Nh3 Rf1 Qc2 Bg3 f4 Rf5 Ne3 Nbd6+ Nc4 Ref8 Qb3 e8B Ng5 Bf7 Qe6 Bc2 Na5 Ne8 Rg7 Qe7 Ra8 d8B Nd7 b8R Ra7 Rb5 Qh3 b7 Ra8 Bg8 Ka7 Rbf5 Rg6 Nc3 Ne4 Qg5 Nec5 Rb1 a1Q Bb6+ Ka6 R8f7 Qab2 Rf8 Qc1 Ne4 Ra7 Ra8 Re6 Nc3 Re2 b8Q Rf2 Qe5 Kb7 Ne4 Nc4 Qef6 Ra4 Ra7+ Kb8 Kd5 Ra3 Qb2 Ra4 Kd4 Na5+
b3Kn2/Q1N1p2N/2n2B2/2N1B3/2r1P1kq/R3qpnR/2BQrQBB/Q4q2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 g4 Nf6 h4 Nbd7 f5 Nh5 f6 Bg7 fxg7 Rf8 hxg5 Nb8 g6 Nf6 g5 Rh8 Ra2 Ng8 Ra3 Nf6 Ra1 Ng8 Kf2 Kd7 Ke3 f5 Kd4 a5 Kc5 h5 d4 c6 e4 a4 b4 h4 d6 Ke6 d7 a3 d5+ Ke5 b6 a2 d6 f4 b7 h3 b5 f3 b6 h2 Nd2 Kf4 Nh3+ Kg3 Bb2 Kh4 Bf6 Kh5 Nb3 Qe8 d8Q Kg4 d7 Rh5 Bg2 Nh6 g8B Nf5 g7 Ra7 g6 Ra8 Ng5 Rh6 Nh7 Ra3 Bd5 Ng3 g8Q Ra6 g7 Qf8 Qd4 Rh4 Qf2 Ra4 Qh8 Nf5 g8Q+ Ng7 Qc7 Qe8 d8N Qh5 Ne6 Rh3 Qgd8 Qh4 Bc4 Rb4 Qdd2 Rg3 Rhd1 h1N Bd3 Rh3 Rdb1 Rh2 Bc2 Ng3 Rc1 Bd7 Rh1 Be8 Qcd7 Ra4 Q7d4 Bf7 Nc7 Bd5 Qb2 Rb4 Qa3 Rd4 Qa7 Rb4 Raf1 a1Q Rd1 Qa6 Ra1 Qf1 Ra6 N7h5 Ra3 Nf4 Bg5 Ng6 Qa1 Nf8 Bf6 Rb5+ Kd4 c5+ Ke5 c4 Nc5 Rh3 Rh2 c3 Rh1 Rb4 Rh2 Na6 b8B Ba8 b7 Rc4 Rh1 Rh2 Kd5 Ne6 Kc6 Nb4+ Kd7 Nc6 Ke8 Nf8 N7a6 Qc1 Bbe5 Qb1 b8B Qf1 Bd1 c2 Nc7 c1Q Bc2 Qg5 Qdd4 Qce3 Qdd2 Rh6 Rh3 Qh4 Qda5 Ne2 Bh2 Ng3 Qad2 Rh5 Nb5 Rd5 Bbe5 Rd6 Nc7 Rd7 Qdc3 Rd2 Qd3 Re2 Qd8 Qe1 Qd2 Qf1
1B1n4/1pb1kBBB/QN2NNK1/3q1p1R/1PnBq3/1n2R3/q5R1/Q2r1R1r w - - 0 1 illegal: No proof kernel
1RR1b2N/2pBq1np/2Q5/n1QNB2P/Rn4N1/K3n1BN/r5nb/1B2B2k w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 f5 fxe5 b5 a4 a5 axb5 f4 g4 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Qg5 Nh3 Qe7 Ng1 Qd8 h4 Kf7 e4 g5 d4 f3 Kd2 a4 Kc3 a3 Kb3 a2 f6 Kg6 e6 Kh5 b6 Kg4 f7 Kg3 e7 g4 e8Q f2 h5 Nh6 e5 Nf5 e6 Ba6 d6 Qc8 e7 Bb5 b7 Na6 b8N Nc5+ Ka3 Nh6 b4 Na4 d5 Bc6 b5 Qd8 b6 Bg7 f8B Bd4 d7 Nb2 d6 Nf7 b7 Be3 Nc3 Bd2 Nh3 Ba4 Nc6 Ng5 b8R Be1 Rg1+ Kh2 Qd4 g3 Bd2 g2 Bg7 Ne4 Be5+ Ng3 Nd5 Nd3 Qc5 Nb4 Bd3 f1N Bb1 Ne3 Rf1 g1N Rf8 Bf2 Be1 Nf3 Qg6 Rg8 e8B Qe7 d8B Kh1 d7 Ngf5 Bg3 Rg7 Ne5 N3h4 Ng4 Bg1 Qgc6 Nhg2 Rh8 Bh2 Rg8 Qf7 Bf6 Qe7 d8N Rg6 Bd7 Ng7 Bfe5 Rf6 Qa6 Rf2 Nf7 Rc2 Rgc8 Bb5 Be6 Be8 Qac6 Rd2 Bd7 Rb2 Nh8 Rf2 Bd3 Re2 Rd1 a1N Bb1 Nb3 Rd4 Na5 Rf4 Na2 Ra4 Nb4 Bdf5 Rc2 Bd7 Ra2+
1kN1Qb1B/1b2b1K1/B2pRQ2/NQ6/3rpR1q/3PRQn1/4bR2/B2r1R1b w - - 0 1 illegal: No possible last move
k3n3/2q1QQb1/2R1pn1r/pN6/Kr2Bn1B/1Q2RRn1/P1Q2n2/2Q1R1NN w - - 0 1 illegal: No possible last move
K4RQN/1NRb1rQ1/2n2Bp1/br1k4/1B4PR/NR3q2/4pb2/1RrBb1B1 w - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 g6 h4 b4 h5 b3 h6 Nc6 axb3 Nd4 b4 Ne6 b5 Ng7 hxg7 Be6 Ra3 Bd7 Ra1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 b4 h5 g4 c6 f4 a4 f6 a3 b6 h4 f7 h3 f5 h2 b7 e6 b8R a2 b5 Ba6 f6 Bb7 b6 Nh6 g8Q Qd7 Rc8 Ra5 Nf3 Rc5 Na3 Qe8 Ng5 Rb5 Rc7 Ba8 b7 Ra5 b8R Be7 f8R Qf7 Rb3 Rh7 Be2 Bd8 Rab1 a1B+ Kc4 e5 d4 c5 Be3 e4 Bg1 e3 Qe1 Rh8 Bd1 e2 Qc3 Nf5 Qb2 Ra7 Kb5 c4 Kb6 Ne7 Qc3 Rh5 Qb2 Qg7 f7 Bc6 Qc3 Bd7 Qb2 Ra6+ Kb7 c3 Kb8 Rb6+ Ka8 c2 Qc3 Nc6 Qb2 Ke7 d6+ Kf6 Qc3 c1B Qb2 Be3 d5+ Bd4 Qc3 Ke5 Qb2 Bc8 d7 Rb5 d6 Qf6 Qc3 Rh7 Qb2 Be7 d8B Kd5 d7 Bf2 Qc3 Qf5 Qcg7 Bb4 Bf6 Ba5 d8N Qf3 Nb7 Bd7 Rb8 Be6 f8B B1c3 Bb4 Bce1 Nf7 Bf5 Rf8 Bd7 Qh6 Rg7 Nh8+ Rf7 Qhg7 Qe4 Rh3 Qf5 Rh4 Qf3 Rb3 Bg3 Bgd4 Bgf2 Rf1 h1R Bb6 Bg3 Bg1 Bgf2 Bc2 Bc3 Bh2 Be5 Rfb1 Rc1 Bg1 Bc3 Bd1 Bce1
N1Q4n/B1q1Qp1p/1bB2P1r/1R1qRQ2/kBbn2q1/q1RK4/4Q2Q/N4R2 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 d6 Bg4 axb3 Na6 b4 Bc8 b5 Nb8 d4 Kd7 e5 Ke6 d5+ Kf5 d7 a5 Qd4 Ra6 Qd1 Rd6 exd6 Kg6 Kd2 Kf5 b4 Ke4 g4 Kd4 f4 e5 g6 c5 f5 c4 f6 e4 g5 a4 g7 a3 b6 a2 b5 Kc5 g6 Kb4 b7 Nh6 g8Q Be7 b6 Kb5 g7 Ka5 Nh3 Kb4 Qe2 Qe8 d8B Qb5 d7 Nf5 d6 Qe5 Ba3+ Kb5 Nf4 Nh4 Bg2 Nc6 b8R Qg5 b7 Na5 Rh3 Nc6 Rc3 Qg6 Bb6 Qg4 d8Q Qh3 d7 Bc5 Bb4 Qg4 Nd5 Nd4 Nc7+ Ka4 Na3 Ng6 Ba7 Bb6 Rf1 a1Q Nc2 Qa3 Qgf8 Rg8 Na8 Nh8 Qc5 Nb5 Qf5 Nd4 Qe7 e3+ Ke1 Qf3 d8R Qg4 Be4 Be6 Re8 Bd5 Na1 Be6 Qb2 e2 Kd2 Bd5 Ke3 e1Q+ Qe2 Qeg3+ Kd2 Qe5 Bf3 Be6 Bc6+ Qb5 Rbc8 Bd5 b8Q Be6 Rb3 c3+ Ke3 c2 Qbh2 Bc4 Rb8 Qg6 Rc3 c1Q+ Ke4 Qg3 Rb7 Qc7 Rbb8 Qg5 Rb7 Rf8 g8Q Qh4+ Qgg4 Rg8 Qc8 Qg5 Qgf5 Qg4+ Ke3 Rg6 Qed7 Bc5 Re5 Rh6 Qe7 Rh5 Bd7 Qbc6 Rb5 Qd5 Bc6 Rh6 Kd2 Bb6 Ke3 Bb3 Kd3 Bc4+
2N1K3/2q3Bk/2Q2bbB/2R2RnR/1pN1Bq2/4n1B1/qP1BpNr1/2R1Qq2 w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 cxd5 f5 exf5 h5 g4 b4 gxh5 Ra6 Bc4 Rb6 Bf1 Rb5 axb5 Bb7 Na3 Ba6 Nb1 Bc8 Ke2 Kf7 Ke3 c5 Ke4 e5 d4 g5 h4 Kg7 f4 a4 d6 g4 Kd5 g3 h6+ Kh7 b6 e4 d7 a3 Ke6 e3 Kf7 e2 f6 c4 f5 g2 b7 a2 h5 c3 d5 c2 d6 Qc7 Nh3 g1Q Bg2 Qa7 Na3 Nc6 b8B Nce7 d8N Bb7 d7 Ng6 Bd2 c1Q Be4 Qh2 Qe1 Bc5 Nc6 Bc8 Bg3 Nf4 Ne7 Qc3 d8R Qd7 Nc4 Qe5 Rc1 a1Q Nf2 Qdc7 Rd5 Ba7 Ke8 Qe6 f7 Ng6 f8R Qb1 f6 Qa6 f7 Bd4 Rc5 Bf5 Nc8 Qh4 Rh2 N8e7 Rh3 Rg8 Rh2 Kh8 h7 Qhf4 Rh4 Kg7 h8B+ Kh7 h6 Nd5 Bg7 Nh8 Rh2 Ne3 Rh5 Kg6 h7 Qaa2 Bh6 Rg7 Rg8 Bc3 f8Q Nf7 h8B Bf6 Qd6 Kh7 Rf8 Rg5 Qc6 Bg6 B8g7 Qba1 Bh4 Rg2 Bg3 Q1b1 Bf3 Qbf5 Be4 Qh3 Rhe5 Qh1 Rh5 Qf1 Qe6 Nh8+ Rf7 Be5 Qc6 Bc3 Kf8 Be5 Rf6 Nf7 Rff5 Bf6 Ke8 Ng5+
1K2Nb1B/1np1kprn/5n1B/Q2R2BB/R2BNrb1/1N3P2/1n5N/Q2r2Q1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 e6 g4 Ke7 gxh5 Ba6 e4 Bb7 d4 Qe8 e5 Qd7 d6+ Kd8 d5 Qc6 d7 Ke7 Bd3 Qd6 exd6+ Kf6 Bf1 Bc8 Ke2 a5 Kd3 g5 Ke4 g4 d8Q+ Be7 b4 e5 h4 g3 b6 a4 d7 a3 b7 g2 b5 a2 b6 Ra3 d6 Ra4+ Kd5 e4 h6 e3 h5 e2 h7 e1R h6 Rae4 Nc3 Re6 Nf3 g1N Ne4+ Kg6 Nh2 Kf5 Be2 Nc6 b8Q Nf3 b7 Na7 Qa8 Ng1 b8N Rf1 Nc6 Rf6 Nd4+ Kg6 Nb3 Rf4 Bh5+ Kf5 f3 Nc6 Qa5 Ne2 Qf8 Ne5 d8B Bd7 Qg7 Nd4 Qde1 Bc8 d7 Ne6 Qg2 Nd3 Kc6+ Bc5 Bf6 Rg4 d8N Rh4 Nb7 Nf8 Nbd6+ Ke6 Ne8 Nb2 Qg5 Bd7+ Kb7 Rg4 Bg7 Nf6 Kb8 Rg8 Qge3 Ba3 Qec5 Rfg1 Bg5 Rf4 Qb1 Rc1 Rd1 Bb4 Rd5 Rd1 Qg1 Bc8 Qd3 Bd6 Qc4 Kd7 Qca4+ Kd8 Qa3 Bg4 Rc1 Kd7 Rc4 Kd8 Ra4 a1N Nbd2 Nb3 Qa1 Nc5 Nb3 Nb7 h8B Kd7 h7 Ke6 Ng3 Ne4 Bd4 Nf6 Bg7 Be7 h8B N8h7 Ne4 Bf8 B7h6 Ke7 Nc3 Rg6 Ne4 Rg7
2R1R2q/2QR1rk1/Qb1N4/3nn1p1/r2R2P1/K2p2pB/2b2B2/NBN2RNn w - - 0 1 illegal: Other
Q4NQ1/4k1BN/2K1n3/QBp2pb1/q1Q1b1Br/Q3rpnn/R2P1BR1/6N1 w - - 0 1 illegal: Other
RQQb2k1/5RB1/2Q4p/2B1r2p/2N3Bq/p2QRQ2/nn1r2KP/nN1b3B w - - 0 1 illegal: Other
5r2/B7/1BKRN2p/4BQp1/1Q1pBbb1/1QQ3bP/RN1N1rn1/1n1qB2k w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 Kf7 Ke3 a5 Ke4 g5 Kd5 d6 c4 h6 f4 a4 e4 a3 f6 Kg6 e6 a2 e7 Bg4 e8Q+ Kh7 h3 Qa5 f5 Qa4 b6 Be7 b7 Bf3 c6 Qa3 c7 Qb2 c8Q Qb3 f7 Qc3 f8B Qd2+ Bd3 Nd7 b8B Qf4 c5 Qg3 c6 Ra6 f6 Bg4 c7 Ra7 e5+ Bf5 e6 Qh4 f7 Kg6 Ne2 Kh5 Kc6 d5 Bf4 Ngf6 Nec3+ Qg4 Na4 Kh4 Qb3 Qd1 Be5 Qg1 Nd2 Bg4 Be4 Nb6 Nb2 Bd6 e7 Nc4 Qf5 Qd1 c8Q Na3 Qed7 Bc7 e8N Nh5 Bb4 Nf4 f8B Ng2 Ng7 Nb1 Bfc5 Rf8 Ne6 Bd6 Qde8 Raf7 Qe7 Bc7 Bca7 Rf6 Bed4 Bf4 Bdb6 R6f7 Bc3 Kg3 Bbe5 d4 Re1 Kh2 Bca5 Bg3 Qeb4 Bf4 Re3 Kh1 Rc3 Bg3 Rc5 Bf4 Rd5 Bg3 Rd6 Rf6 Qg6 Rf2 Qf5 Nc3 Rc1 a1B Rc2 Bf4 Kd7 Nb1 Qcc3 Bh2 Kc6 Bg3 Na4 Bf4 Ra2 Bg3 Bc5 Bb2 Bcb6 Bc1 Nb2 Rf7 Nc7 Rf6 Ne6 Rf8 Ndc4 Bd2 Q4a4 Qe1 Qcf3 Rh8 Bc3 Rg8 Qab4 Qe2 Qe3 Bc1 Be1 Rf8 Qec3 Bcf4 Nd2 Qd1
R5b1/1q3QQ1/1k3KP1/1N2BrrN/n1bN2Rp/Bn1pp2Q/1B4B1/4N1bN w - - 0 1 illegal: No possible last move
rb3QQK/q2r4/1QBpBpb1/3Qb3/1R4pn/nN2P3/N1RB2N1/1BB3k1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 b4 Kg4 h4 Kg3 c4 Kf2 b6 g5 e3 a5 b7 g4 h6 a4 h5 a3 e6 a2 Ke5 Ra5 h7 Qe8 e7 Nf6 b5 Ra3 c6 Rg8 h8N Qd8 e8B Nd5 c7 Nb4 c5 N4a6 b6 Rb3 c6 Rb4 h6 Rc4 h7 Ba3 Bd3 Nc5 Nd2 Rf4 Rh2+ Kg3 Ng6 Rf1 h8B Nba6 b8Q Nb4 b7 Nca6 Nf4 Rf3 Ng2 Kf2 Ne2 Rf6 Nc3 Rfg6 Rb1 a1B Nb3 R6g7 Qa7 Nd5 b8Q Qh4 Qab6 Nf4 Bf5 Qh7 Kf6 d6 Qd5 Nb4 Rb2+ Kg1 Na2 Rf8 Bb1 Bf5 c8Q Bg6 c7 Nc2 Bc6 Bc5 Qce6 Re8 c8B Na3 Qef5 Rd8 Be6 Rd7 Qf8 Rg8 Qg7 Ra8 Qg8 Bh5 Bg7 Ng6 Qf4 Nh4 Bh8 Qe4 Kg7 Qd4+ Kh7 Qa4 Bc3 Qa7 Kh8 Bg6 B3d2 f6 Qh6 Bd4 Qhf8 Be5 Rc2 Bad4 Rb2 Bc5 Rc2 Nf3 Rh5 Nh4 Rf5 Bcd4 Rf4 Bc5 Rb4 Bcd4 Qba5 Bb6 Qab5 Bc7 Qb6 Bb8
1QRQN3/nb5q/1pNQ3B/1r2pn2/1Bkpr2Q/1rb1R3/2PB3N/K1BB4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 d5 Kb2 g5 f4 g4 h4 e6 a4 b6 a6 g3 a7 g2 h6 Qc7 h5 Na6 a5 Qe5+ Nc3 Rh7 c6 Nb4 f6 Na6 f5 Bg7 c7 Qh2 Na2 Qd6 Nf3 g1R Nh2 Qc5 Be2 Bh8 Nb4 Bg7 Ra3 Bf8 Ka1 Rh8 h7 Qd6 h6 Qc5 Re3 Bg7 Nc6 Bd7 c8N Qe7 Nd6+ Kf8 Ne8 Rc8 a8Q Kf7 Qb8 Nb4 a6 Rc7 a7 Bc8 a8Q Bb7 Qd8 Qd7 Qab8 Ne7 Qd4 Rg4 Bd1 Re4 Qd3 Rg8 h8Q Rf8 h7 Rc8 Nd4 Rc3 Nc6 Rb3 Rg1 Rb2 Rg6 Bh6 Rg8 Bf4 Qd4 Be5 Qc5 Bc3 Qcd6 Rh4 Rg4 Rg8 Rc4 Re4 Bd2 Na6 Bc1 Nc7 Rc5 Nb5 Rc4 Kf8 f7 Na7 Qf6 Rg1 Qh4 Rg5 h8B d4 Be5 Rh5 Bg3 Qc7 Be1 Rg5 Bed2 Qd7 Nf6+ Kg7 f8B+ Kf7 Ne8 Rh5 f6 Rhb5 Rc5 e5 Bh6 Nf5 Na5 Qe7 Rc8 Qd7 Nc6 Qe7 Qa3 Ke6 f7 Qc7 f8B Qh7 Bd6 Kd5 Bb4+ Kc4 Ba5 Qg8 Qad6 Qh7 Bb4 Rb3+
B2Q2b1/2K2P1b/rnR3nB/R1RN1p2/q1R4p/2bprBk1/2Q1BR2/Q3N3 w - - 0 1 illegal: No proof kernel
B4BR1/r4P2/1nBN4/p1p1QQK1/2qRp3/1Bk2NbN/b1n5/Nb2r1RN w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 d4 h5 b4 e6 g4 h4 d6 h3 f6 h2 g6+ Ke8 d5 Kd7 b6 e5+ Kg5 e4 f4 Nc6 g7 Nh6 g8B Be7 f5 Ne5 b5 Bf8 b7 Qb6 b8N+ Kd8 f7 Qb7 b6 Bd7 f6 Qc7 b7 Nc4 Nd2 Rh7 Qf3 Na3 Bb5 Be6 d7 Nf5 Bc6 Ra7 Nf1 Ng3 Na6 Bd6 b8Q+ Qc8 f8N Be5 Qf5 Ne2 Ng6 Ng3 Nf3 Bf7 Nb4 Ne2 Ng3 Ra8 Rd1 h1B Nc2 Rh8 Nf4 Nb1 Rd4 Ng1 Nh3 Bg2 Nh1 Bg3 Qbe5 Na3 Bf4 Ne2 Rg1 Qa6 Na1 Nc4 Bd2 Nd6 Bf4 Kc7 d8N Kb6 Nb7 Nc8 d6 Qd3 d7 Ba2 d8R Ra7 Nd6 Bf1 Bgd5 Qc4 Rg8 Ka6 Ba8 Nb6 Bdc6 Rhh7 Kg6 Rhf7 Bh6 Rfd7 g5 Rf7 Rd1 Nd4 Bf8 Nc2 Rd4 Bd3 Kh5 Rg7 g6 Rh7+ Kg5 Rh4 g7 Rf4 Nd2 Rf1 Nf3 Re1 Qe8 Ne3 Qee5 Bdb1 Rh8 Nc2 g8B Qa4 Bb3 Qc4 f7 Qc3 Nb7 Qc4 Bd5 Kb5 Rg8 Kb4 Nd6 Kc3 Bdb7 Kb2 Bc6 Kc3
2BQB2R/1Q2np2/1R1QKb2/n1NpNB2/1Q2rkp1/Q1R3rb/3P4/B4b1q w - - 0 1 illegal: Other
B3q3/B3pR1Q/kb1BBnPb/1pKN3N/1p5r/3Q3R/1NN2rb1/4NRn1 w - - 0 1 illegal: Other
R1nNkN2/b2pr3/3r2q1/N1pRpQR1/b2P1BBK/4nQ2/2B1N1b1/1BN5 w - - 0 1 legal: proof: h4 g5 hxg5 f5 b4 b5 e4 c6 exf5 Bb7 c4 Bh6 a4 Kf8 a5 Qb6 a6 Bg7 cxb5 Be5 Rh6 Ke8 Rh5 Qc7 b6 Bc8 b5 Qb7 axb7 Bg7 Rh1 Bf8 d4 e5 g4 h5 f4 a5 Kf2 h4 g6 h3 Kg3 h2 g7 a4 g5 a3 g6 a2 f6 Ba3 f5 Kd8 f7 Ra7 f8N Nf6 g8B Rh6 g7 Nd5 f6 Bb4 f7 Nf6 Bd3 Rh4 Bc2 Rf4 Nc3 Bd6 Nce2 Ra5 Bgh7 Ra7 g8B Rf5 Kh4 Ne8 Bf4 Ra4 Nc1 Ra8 Nge2 Na6 b8R Rf6 b7 Nb4 b6 Nd5 Rg1 h1B Rg5 Ne3 Ne6+ Ke7 f8N Bg2 Nd8 Bc5 Be6 Nd6 Bg4 Ke8 Qd3 Re6 Qf5 Ra6 Ra8 Re7 b8Q Bb7 Rb1 a1Q Rb5 Qb1 Qc7 Bc8 b7 Ba7 b8N Bb7 Rd5 c5 Nbc6 Nc8 Na5 Bc6 Qb7 Ba4 Qb3 Nc4 Qf3 Ne3 Qe6 Qb6 Bhd3 Qd6 Qf5 Qg6 Bb1 Rae6 Bdc2 Rd6
4B1RN/R3N1Q1/1qrkN2B/1Q3Kbp/P1bp4/1p1Q2Nr/1nR1RN2/1nq5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 d5 Kd3 Kd7 f4 b5 c4 e5 g4 h5 g6 b4 g7 b3 c6+ Kd6 a6 d4 Ke4 Qd7 f6 Qa7 c5+ Kc7 f7 Bb7 f5 Bc8 g5 Qb7 a7 Ne7 g8Q Qa6 g6 Qb6 g7 Bd7 f6 Bg4 Qd3 Rh6 Nc3 Qa5 Nce2 Qa3 Rh2 Nd7 Ng3 Rd8 a8Q Be6 Qa5+ Nb6 Qab5 Rg6 Re2 Nbc8 Bh6 Na7 Nh3 Nd5 Nf2 Be7 f8N Nc8 f7 Qa7 a3 Rf6 Ng6 Qb6 f8N Rf3 Nh8 Bg5 Qh7 Rd6 g8R+ Bf7 Qg7 Re3+ Kf5 e4 Raa2 Nc3 a4 Nb1 Rac2 Qb7 Bg2 Nb6 Bf3 Nc4 Bh1 Kc8 c7 Rc6 Ne6+ Kd7 c8R Nb2 Ra8 Qb6 Ra7+ Qc7 Nf1 Rh3 Ng3 e3 Bf3 Ke7 Bg4 Ra6 c6 Kd6 Bf3 Qd8 c7 Rc6 Nc5 Bc4 Ne6 Qb8 Bh1 Ra6 Bc6 Qb6 Red2 e2 Be8 e1Q Re2 Qh1 Qb4+ Kd5 c8N Qc1 Qb5+ Qc5 Re1 Rc6 Ne7+ Kd6+ Re5 Qb6 Re4 Bd2 Re2 Bg5
2Q1Bq2/1K3Q1R/p1BN2Np/QbB1rP2/2n2RBp/r1R2nb1/k6q/3B1R2 w - - 0 1 illegal: Other
r1B1kqb1/2rRn1pn/8/B2qp1BN/3bQ1pN/N1Q3PN/RKN5/Q4B2 w - - 0 1 illegal: Other
2R1Q3/RBn2NpB/nP3b1r/6pB/1RKB2rk/Qqp1q2b/1R3N2/4B2N w - - 0 1 illegal: Other
Q2Nk1bB/2B1P3/Rr2npr1/n2K1Rq1/RN1Q1B1B/q5p1/3p2B1/4NRb1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 a5 Ke4 a4 c4 f6 h4 d6 b4 a3 c6 a2 b6 g4 c7 g3 b5 Bh6 e6 Bf4 h6 Ne7 c5 Nd7 h7 Nf8 c6 Ra4+ Qd4 Ng8 b7 Rb4 b8B Qd7 b6 Ng6 h5 Nh4 e7 Be3 h6 Nf3 b7 Nh2 Nc3 Ng4 Nd5 Bg5 Bg2 Nh2 Nf3 Rb6 Rf1 Rb1 Ne1 Rb5 Nb4 Kf7 e8R Qh3 Re6 Bh4 Bg5 Rb6 Kd5 Qg4 e4 Nf3 e5 Bd7 c8R Ne7+ Kc4 Re8 h8B Rg8 h7 Rg6 c7 Nc6 Kd5 Na5 Rd8 Qf5 c8Q Ba4 Bc7 Bb3+ Qc4 Qf4 Qa8 Nd4 b8B Qc1 Rf5 Qa3 Rb1 a1Q Rc8 Qc3 Ra1 Qac1 Ra4 Q3b2 Rf1 Qa3 Ke4 Qd2 Bd8 Qdb2 Bg7 Qba1 Rc5 Rc6 Qd3 Q1c1 h8N+ Kg8 Qd2 Ba2 Nf7 d5+ Kf4 Bb3 Bh8 Kf8 Bb6 Rd6 Nd8 Rc6 Rd6 Ke8 e6 Ba2 e7 Bc4 Bh6 Bb3 Ke3 Bg5+ Kd3 Bf4 Bg5 Be3 Bh4 Bg1 Qc3 Qf4 Re6 Qh6 Bf4 Qg5 Bbc7 Rd6 Rc6 Ba2 Ra6 Rb6 Re5 Nb5 Re4 d4 Re5 Bg8 Ke4 d3 Rf5 Nd4 Qb2 Ne6 Kd5 d2 Qe5 Bf7 Qd4 Bg8
3NRN2/Q3pRB1/n3P3/1R1BBNpK/N1Rrp2N/1Q6/nbq2q2/3b2rk w - - 0 1 illegal: Other
Q3NNn1/Bpb1p1Q1/1Q4Rp/nP1r1N1q/BR1Nb3/1KB4k/N3Qq2/r7 w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 a3 Qa4+ Bd7 Qxa3 Be6 Qa7 Bc8 Kd1 Kd7 Kc2 c5 g4 c4 d4 c3 f4 Bh6 a4 Qc7 b4 Qe5 g6 Qe3 f6 Qg3 a5 Qh3 d6 Ke6 f7 Qe3 f8Q Qe5 d5+ Kd7 g5 Nc6 g7 Nf6 g8N Nd8 g6 Qd4 f5 Qe4+ Kb3 c2 a6 Qd4 g7 Ne8 f6 Qd1 f7 Qg4 Qb6 Qe2 a7 Qf3+ Nc3 Be3 Na2 Qg4 Bb2 c1Q Bb5+ Qc6 Ba4 Ne6 b5 Qd4 Rb1 Qf6 Rh6 Bd2 Bc3 Qg5 Ne2 Qg2 Nd4 Bf4 Rg6 Qc5 Nh6 Qf2 g8N Nf6 Nhf5 h6 Qg7 Nd8 Rb2 Nc6 f8N+ Ke8 Qa6 Be6 d7+ Kd8 Qb6+ Bc7 Ng3 Bh3 Ngf5 Bg2 Rb1 Be4 Rb2 Nh5 Nf6 Rg8 Ne8 Nf6 Qa5 Rh8 Qb4 Ng8 Qc4 Qh4 Qe2 Qh5 Nc2 Qf2 Ncd4 Rc8 a8Q Na5+ Ka3 Bb8 Rb4 Rc5 Nf6 Kc7 d8B+ Kc8 d6 Rd5 Qa7 Bc7 Ne8 Bb8 Bb6 Bc7 Nh7 Kd8 Qa8+ Kd7 Ba7 Nf6 Nc6 Ke6 Ncd4+ Ke5 d7 Kf4 d8Q Rf8 Kb2 Ng8 Ka3 Rf6 Nf8 Rc6 Be1 Rc1 Bc3 Ra1 Kb2 Bb8 Qb6 Bc7 Ka3 Qg4 Nfd6 Kg3 N6f5+ Kh3 Kb2 Qh5 Ka3 Nc6 Kb3 Na5+
QN5B/p1k1rB1R/1pN3r1/Rn2b3/1RB1Nqp1/B6P/bB3n1K/4qR1Q w - - 0 1 illegal: No possible last move
2q1bnR1/pB1k3p/N3r1RB/1p1qR2P/Br2K1N1/6B1/nN1NQQ2/4Nq2 w - - 0 1 illegal: No possible last move
1K1R1B1Q/q3p3/k2r2p1/b1qQPn1N/p2Qq3/RrR1BB2/2n5/RR1B2N1 w - - 0 1 illegal: No possible last move
3BN1K1/QBr1bpR1/4p2n/1p4Nq/b1BQPB1R/3q2R1/bB4N1/1k4Nn w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h4 a3 bxa3 Nh6 a4 Ng8 a5 Bg7 Na3 Bh6 Nb1 Bf8 g4 b5 g6 Bd7 g5 Qc8 g7 Ra6 h5 Rg6 hxg6 Qd8 Nh3 Bf5 Ng1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 a4 h4 e4 e6 a6 c6 a5 h3 a7 h2 a8B Rh7 a6 Rh6 a7 Rh3 Bb7 Rh5 a8Q Rh7 Qa7 Qa5 Bb2 Qb4+ Bc4 Rh3 Nc3 Qa4 Nce2 Nd7 Ra3 Qc2 Nf4 Rf3 Ng2 Rf5 Rg3 Nh6 g8R Nf6 g7 Bd7 g6 Nfg4 d3 Nf2 Qd2 Ke7 d6+ Kf6 Qb4 Bc8 d7 Be7 d8B Rc5 Bc7 Qe2 Bf4 Qh5 Kc3 Bd7 d4 Bc8 d5 Bd7 Bfc1 Ke5 d6 Bc8 Ba6 Bb7 d7 Ba8 d8B Bb7 Re8 Ba8 g8N Bb7 g7 Ba8 Nh3 Bb7 Rg1 h1B Nf6 Ba8 g8N Bb7 Nh4 Bf3 Ng2 Bd1 Nh7 Ba4 Ngf6 Nh1 Rh8 Ba8 Ne8 Bb7 Ba3 Ba8 N7g5 Bb7 Kb2 Kd4 Bf4 Ba8 Rh7 Bb7 Rg7 Ba8 Rg4 Bb7 Rh4 Ba8 Bd5+ Kd3 Bb7 Rc3 Qd6 c5 Qdb6 c4 Qd4+ Ke2 Ne3 Rc1 Rg3 Ke1 Ng1 c3+ Ka2 c2 Bc4 Ng8 Bb2 Nh6 Ba6 Bd5 Bb7 Bf6 Ka3 Be7+ Qdc5 Kd2 Kb4 Rd1 Qd6 c1Q Ng2+ Kc2 Kc5 Re1 Kd4 Qcd1+ Ke5 Qd3 Qdb6 Rc1 Qd4 Bf8 Kf6 Kb1 Rh7 Be7+ Kg7 Nf5+ Kg8 Rc2 Bb3 Rc7 Rg7 Bc4 Bd1 Ba2 Bb3 Bf6 B3d5 Be7 Bc4 Nh6+
Bkn5/qp2n2p/1q4QB/b1NpRr1Q/4N1B1/2KQ2qR/2RB1R1P/B2b4 w - - 0 1 illegal: No possible last move
2bRB1q1/3BB1N1/6N1/N3Q1p1/1np3b1/kBN1QpRR/b1Pr4/BnK1b3 w - - 0 1 legal: proof: g4 e5 b4 b5 d4 a5 dxe5 h5 bxa5 Nh6 gxh5 Ra7 e6 Rg8 f4 Ke7 e4 Rh8 f5 Qe8 Bd2 Kd6 Bc1+ Kc6 e7 Qd8 e5 Ng8 Bd2 Ra6 Be3 Kb7 Bc1 Re6 fxe6 Kc6 Kd2 Kc5 e8B Kb4 a4 g5 h4 f5 e7 c5 a6 d5 h6 d4 a7 f4 a8Q f3 a5 d3 h5 Qd4 h7 Be6 a6 Bg7 h6 Qc4 a7 Bh3 e6 Qh4 Qe4+ Bd4 a8R Na6 Bd7 Qh5 e8B Bg4 e7 Bf5 Na3 Nf6 Qe3 Nd5 Rh3 Qf7 Nc4 Nc3 Rd8 Bg4 Na5 Qg8 Qde1 Nb1+ Kd1+ Bc3 Ba3+ Ka4 Ne2 Nb4 Qg3 Bd2 Qge5 Be1 Kc1 d2+ Kb2 d1B Kc1 Qf7 Rg3 Rf8 h8N Qg8 h7 Rf4 Rh3 Rd4 Ng6 Rd6 h8B Rd2 Ng3 Be2 Ne4 Bc4 Bd3 Bd5 Bc4 Bb7 Ba2 c4 Bf6 Nd5 Bb2 Bc8 Bb3+ Kb4 Bd4 Nbc3 Rb1 Ka3 Bc5+ b4 Bd4 Nb5 Ba1 Nbc3 Bf7 Rh2 e8N Bg3 Ng7 Rd2 Bfe8 Bf2 Ba2 b3 Be7+ Nb4 Rg3 Rd6 Rh3 Rb6 Rg3 b2+ Kd2 Rb5 Rc1 b1B Bb3 Ba2 Rh1 Nb1+ Kc1 Rd5 Nc3 Be1 Rhh3 Rd2
3B2nB/3p1NN1/1pbR1r2/2r1b3/RrB2N1r/3R1q1p/2QP1N1K/Q2BkN2 w - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 a4 exf5 b6 c5 a3 c6 Na6 bxa3 Nc5 a4 Kf7 a5 Nb7 cxb7 Ke8 b8B Kf7 f4 h5 Kf2 e5 Kg3 c5 a4 c4 g6+ Kf6 g7 h4+ Kh2 e4 g4 c3 g5+ Kf7 a6 e3 g6+ Kf6 a7 c2 a5 e2 a6 e1R Ne2 Bc5 Ng3 Bd4 Nc3 Nh6 g8B Bf2 g7 Qe7 Ra3 Qe3 Nce4+ Ke7 f6+ Kd8 f7 Ke7 f8N Qc3 f5 Qd4 f6+ Kd8 f7 Ke7 Ne6 Re3 f8N Nf7 Nf4 Qd3 Bc7 Qc4 Be2 Nh6 Bb2 c1R Nf1 Rf3 N8e6 Qd5 Qc2 Bd4 Nf2 Kf6 Rd3 Kf5 Bd1 Be5 Bd8 Bb7 Bc3 Rc8 a8Q Rb1 a7 Bc6 Rg1 h3 Rg6 Rb2 Bf7 Rb4 g8N Bb7 Ba1 Rc5 Bd4 Bc6 Ba1 Bb2 Ng7+ Ke5 Rd6 Bd4 Ng2 Rf6 Nf4 Qf3 Bc4 Bc3 Qc8 Rh7 a8R Bb2 Ra4 Rh8 Nh1 Ke4 Qa8 Be5 Qa5 Nf5 Qa7 Rh4 Nh6 Ne7 Nf7 Ng8 Bd4 Rb3 Qa5 Rb2 Qac3 Rb4 Qa1 Rf5 Rda3+ Qd3 Bc7 Bf6 Nge6 Bh8 Bd8 Bg7 Ne2 Kf3 Nf2 Bh8 Bg7 Qe3 Rad3 Rff4 Bh6 Be5 Bg7 Rf6+ N6f4 Bb2 Nh5 Bc3 Bh8 Bb2 Nh1 Bc3 Ng7 Be5+ Nhg3 Kf2 Nf4 Ke1 Nh1 Qe2+ Nf2 Qf3
N1r5/Kp3B1k/QRNQ1r2/5Rbp/1nqn1p1B/2NN1PBp/2B2r2/2Q2N2 w - - 0 1 illegal: Other
1QBq1n1B/7N/6k1/NK1p4/R1r1pQ1b/NpR1P2n/rQ4pB/1BB1Qn2 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 c5 dxc5 f5 bxa5 b6 h3 Bb7 gxf5 g4 Qd2 g3 Qd4 Bf3 Qd1 Bg4 hxg4 Qc8 Bg5 Qc7 Bc1 Qd8 Kd2 Kf7 Kc3 d5 Kb4 h5 f4 e5 a4 h4 c4 h3 f6 e4 e3 g2 f5 h2 g5 b5 g6+ Ke8 g7 Kf7 a6 Qc8 a5 Nd7 a7 Be7 a6 Bd8 c6 Rh3 c5 Ne7 g8N Qb7 c7 Nb6 c8Q Ng6 c6 Ne7 c7 Ng6 Nf3 Rh8 Ne7 Qc6 Bd3 Rh5 Na3 Rh3 Bb1 Rh6 Qe1 Nf8 Qb7 Qe6 c8B Qc6 Ng5+ Ke8 Nh7 Qc2 Nc6 Bc7 Na5 Bb8 f7+ Kd8 f6 Qf2 Kc5 b4 Kb5 Bf4 Qb8 Bg3 Qf4 b3 Rf1 Ne6 f8B Ke8 Bg7 Kf7 Bh8 Kg6 f7 h1N f8B Nd7 Bd6 Bh4 Bc7 Qd2 Rf2 Qb2 Rc2 Qf6 Rc3 Ng5 Be5 Ng3 Bd6 Nh3 Be5 Nb6 Bd6 Rb8 a8Q Nf1 a7 Qd8 Ra2 Rb7 Qb8 Rc7 a8Q Rc4 Qaa7 Nd7 Qd4 Nf8 Qdd2 Qg5 Qb2 Qf6 Qff2 Qd8 Bh2 Kh5 Qff4 Ra6 Nc2 Kg6 Ra4 Rac6 Na3 Rf6 Qfc7 Rf2 Qf4 Rc2 Qa1 Ra2 Qb2 Bg3 Be6 Bf2 Bc8 Bh4
5K1b/N3rRR1/2pq1Nr1/QBk2B2/2n1R1bB/2p1pq2/2PBN1Bp/Q4N2 w - - 0 1 illegal: Other
N5n1/1rp4R/kBQ1RN1B/4N2B/N3rnp1/2b3q1/KpP1pB1q/1NQ3Q1 w - - 0 1 legal: proof: g4 a5 e4 g5 b4 f5 bxa5 d5 gxf5 Be6 exd5 Nh6 h4 Bf7 h5 Bg6 hxg6 Ng8 d4 Kd7 Kd2 Kc8 Kc3 e5 Kb3 b5 f4 Kb7 a4 h5 f6 e4 f7 e3 d6 h4 d5 h3 d7 b4 g7 h2 d6 Rh3 a6+ Kb6 a7 Rh6 a5+ Kb7 a6+ Kb6 f5 Rh4 f6 Qe7 d8B Re4 d7 Qd6 Ka2 Qe5 Be2 Qg3 Nf3 Rc4 Qg1 Qg4 Ne5 Qf5 Bh5 Bd6 f8Q g4 f7 Qe6 Qe8 Qf5 f8B Qf7 Bh4 Qf2 d8Q e2 Bh6 Bc5 Qdd1 Nd7 Qc1 Bd4 Bc5+ Kb5 Bb6 Rb8 a8N Rb7 a7 Qg3 Qg6 Ka6 Qc6 Ne7 g8N Ng6 Nf6 b3+ Ka3 b2+ Ka2 Qd3 Bg3 Nf4 Bf2 Bc3 Bbc5+ Ka5 Nb6 Qg3 Na4 Re4 Bb6+ Ka6 a8N Nf8 Kb3 N8g6 Ra3 Ne7 Ka2 Bd2 Rd3 Ng8 Rd6 Bc3 Re6 Qh4 Qg3 Qh3 Re1 h1Q Qg1 Q3f3 Rd1 Qfg2 Rd7 Qg3 Rh7 Qhh2
1N1Qq1BB/nPp2R1n/1R3BR1/1nbBN1rK/3B1q1B/R3B3/8/1k2n3 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 e4 b5 a4 f5 exf5 d4 axb5 a4 c4 d3 b6 Qd4 b7 Ra5 bxa5 Qd7 Bxd3 Qd8 Bf1 Nc6 b8R Ba6 Rc8 Bb5 cxb5 Nb8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Kd4 h4 g5 f6 e5 h6 e4 b6 e3 f7 a3 h5 a2 f5 e2 a6 Kd3 h7 Nd7 a7 Ne7 a8B Bh6 f8B Nc5 f6 Qd5 f7 Nb7 Bg7 Qd6 f8R Nd5 Rb8 Qe5 Nf3 Qe7 Rg1 Qf7 Bf6 Nd8 Ne5+ Ke4 d4 e1N Be3 Qg8 Na3 Bg7 h6 Nf7 Kh5 g4 Bc4 g3 Nb5 g2 Na7 Ng5 Nac6 Nc3 d5 Nb5 d6 Na7 Rf7 Bf8 d7 Bc5 d8B Qe8 Be6 Rf8 h8B Rg8 h7 Rg7 Bde7 Rg6 Qd8 Rg7 Nd7 Kd3 Nce5+ Kc2 Bad5 Rg6 Bhg7 Kb2 h8B Nh7 Rb7 Rg4 Nb8 Rg3 Rc1 a1Q Rc3 Kb1 Ra3 Qd4 Bh4 Qf4 Bgf6 Bb4 B7c5 Rg8 Bcd4 Bc5 Rf1 g1N Rf2 Rf8 Rg2 Ne2 Rg6 Nc3 Rd7 Ncb5 Bg8 Rf7 Re7 Rg7 Rf7 Nc8 Rba7 Qe7 b7 Qe8 R7a6 Nca7 Rc6 Qh2 Rb6 Qf4 Rh6 Rg4 Rg6 Rg5+
3NqQ1N/qnBRN1N1/1b2Pn1K/1k4b1/8/rb3NB1/N1R3nB/3B1Nb1 w - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 gxf5 g5 h4 d5 cxd5 e5 fxe5 g4 a4 Ra6 axb5 Rh6 Rh2 Rh5 Rh1 Rg5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kd7 Kg3 h5 Kf4 c5 b4 c4 d4 g3 e4 c3 f6 h4 f7 g2 e6+ Kc7 e5 Kb6 d6 a4 e7 a3 e8N h3 d5 h2 g6 a2 g7 c2 d7 Be7 f8N Ba6 e6 Bf6 d6 Rh6 Ng6 Rh3 Nf3 g1N Nbd2 Be7 Nh8 Bf6 Be2 Qc8 d8B+ Qc7 Qf1 Bc8 Bd1 Ne7 g8N Nbc6 Ng7 Bd4 Kg5 Ne2 d7 Nd5 Ne7 Rg3+ Kh6 Bb7 Bb2 Nf6 Rc1 Bg1 Be5 a1B Qf2+ Bd4 Nf1 Ka7 b6+ Ka6 b5+ Ka5 Bd6 Nf4 Be5 Qc8 Bdc7 Qe8 d8N Ng2 Bed6 Ba8 b7+ Bb6 b8B Ka4 Qc5 Na5 Qf5 Bd5 Be5 Nh7 Qf8 Nf6 Bf4 Bb3 Bfd6 Bbd4 b6 Kb5 b7 Bb6 Bf4 Rg4 Bg3 Ra4 N1d2 Ra3 Nf1 Bgd4 Rg1 h1Q+ Bh2 Bf2 Bg3 Bfd4 Bbc7 Bdc5 b8N Nb7 Nbc6 Bf2 Bge5 Bh4 Bhg3 Qh3 Nb4 Qf5 Bef4 Qc5 Na2 Qd4 Rh1 Qa4 Rh2 Qa7 Rb1 c1B Rb2 Qa8 Rd2 Qa7 Rd7 Bb2 Bfe5 B2d4 Bed6 Bg1 Bdf4 Ne3 Rc2 Ng2 Bfe5 Qa5 Bh2 Qa7 Beg3 Bg5+
2bbBK1N/1nR1RqR1/1R4N1/6p1/NN1P2k1/1b6/QNrqN3/B2n1rN1 w - - 0 1 illegal: No possible last move
1R1nRbn1/k7/2B1QrR1/4B1Bn/2pr4/r1rN4/KB2BNPB/2B1b2R w - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 Qd7 a4 Qd6 axb5 Qd8 e4 Kd7 d4 g5 hxg5 Nc6 d6 Ke6 d7 Kd6 d5 Nb8 f3 Ke5 Qc2 e6 Qb3 Qe7 Qd1 Qc5 d6 Qd5 exd5 Kf5 Qd2 Kg6 Qe2 Bb7 Qd1 Bc8 b6 e5 Rh2 e4 Bc4 e3 Bf1 Ba6 Rh5 Bd3 Rh1 Be4 fxe4 Bg7 Rh5 Bh6 Rh1 Bf8 d8R c5 b4 a5 b5 h5 d7 f5 e5 Kf7 e6+ Ke7 g6 Kd6 b7 Kc7 d6+ Kb6 g7 h4 e7 f4 e8B a4 Ne2 f3 Qb3 h3 Kd1 f2 Kc2 h2 Kb2 a3+ Ka2 Ra7 Qe6 c4 Nbc3 Rh5 Rb1 Be7 Ne4 Ra5 Nf4 e2 Nd3 e1B Be2 f1R Nef2 Nc6 b8B Kb7 b6 Rab5 Rb4 Ka6 b7 Rh4 Rc8 Rf4 d8B Rd4 d7 Bf8 Be5 Ka7 Bdg5 Nd8 Rb1 Rb3 b8B+ Kb7 Bbd6 Ka7 Rc6 Rc3 Rb8 Rb3 Bb2 Rc3 Bgc1 Rb3 Rg1 h1N Rcc8 Ng3 Rh1 Nh5 Bh2 Nf7 d8B Rc3 Bdg5 Nd8 Bc6 Rb3 Ka1 a2 Bde5 Rc3 Ng4 Rf6 Ngf2 Nh6 g8R Rb3 Rg6 Ng8 Bb7 Rc3 Rc7 Rb3 Re7 Rc3 Re8 Rb3 Ba3 Rc3 Kb2 a1R Bc6 Rb1+ Ka2 Rbb3 Bab2 Ra3+
3N1bNB/2k3rr/r1B5/N5n1/1N2pnRP/1rnN1R2/NN1B3Q/KB1n4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 g4 c4 Qd7 cxd5 Qd6 Bc4 h5 Qf3 g3 Qa3 Be6 Kd1 Bf7 Be2 Qg6 Qd3 Qg5 hxg5 h4 Qc2 h3 Bf1 h2 Ke1 Bh5 Qb3 Bg4 Qd1 Bh3 gxh3 Rh7 Qb3 Rh4 Qd1 Rh8 d4 Kd7 Kd2 e5 Kc2 a5 b4 c5 Kb2 g2 f4 e4 d6 c4 d5 a4 f6 Rh7 f7 Rh5 h4 Ra5 b6 Rb5 b7 Ra5 g6 Rh8 g7 Ne7 g8B Rh7 f5 Bg7+ f6 Ra6 f8N+ Kd8 d7 Nc8 b5 Re6 b6 Rc6 Ng6 Bf8 f7 Rc7 Qc2 Bc5 f8B Rh8 Bd2 Nc6 b8N Na5 b7 Bf2 Na3 Nd6 Ne7 Rh6 Bd3 Rh8 Na6 Bb6 b8N Rc5 Ne2 g1N Rf1 c3+ Ka1 Rh7 Bg7 Nac4 Nc1 Rc6 Nb4 Rc7 Rf3 Nb2 N8a6 Nf7 Nca2 Ne2 Nc5 Ng5 Rg1 h1R Nc4 a3 Bh8 Nd1 Rg4 Rh3 Nb2 Nf4 Bf7 Ra7 Ng8 Kc7 d8N Rb7 Bb5 Rg7 Ncd3 Bc5 Bd7 Bf8 Bc6 Ra7 Nb7 Ra6 Qb3 c2 Na5 c1N Qc2 Nce2 Be6 Nec3 d6+ Kd8 d7 Kc7 d8N Rg3 Be3 Rh7 Qh2 Rg2 Nac1 a2 Bb3 Rb6 Bc2 Rb5 Bb1 Rb7 Na4 Rb2 Bd2 Rb3 Nab2 Ra7 Be8 Ra6 Bd7 Rg6 Be8 Rgg7 Bc6 Ra3 Nab7 Ra8 Na5 Ra6 Na4 Ne3 Kb2 a1R Ndb7 Rd7 Nd8 Ra3 Nca2 Rdg7 Ka1 Ned1 Nab2 Rb3
4R1R1/kp5N/N3p1QN/2R1r3/1BN3Rb/2K1R1P1/rR1R1q1n/1r2rB1n w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 g5 bxa5 f5 h4 f4 hxg5 f3 exf3 Bg4 fxg4 Nd7 f4 Nb8 f5 Ra7 Ba3 Ra6 Bc1 Ra8 a4 Kd7 d4 Kc8 Kd2 h5 d6 c5 a6 c4 a7 e6 f6 h4 a5 h3 a6 h2 d7+ Kc7 g6 Kb6 d5 Nh6 f7 Bc5 f8R Qg5+ Rf4 Rd8 g3 Bf2 d6 Qh5 g5 Rc8 d8R Qh3 g7 Ng4 g8R Nh6 d7 Nc6 g6 Rcb8 g7 Qg4 Kc3 Nf7 Rc8 Nce5 d8R Nd3 Na3 Qf5 Rg4 Qh7 Nf3 Bg1 Ra2 Be3 Rc5 Nfe5 Bd2 Bg5 Qc2 Bh4 Ng5 Nf2 Qg6 Rc8 Rdd5 Qh8 Nh7 Nf3 Re5 Rf8 Re3 Rf5 Re8 Re5 g8N Qf6 Nh6 Qf5 Be1 Qf6 Rd2 Qf5 Rg1 h1R Rg2 Nh2 Rg8 Rg1 Re8 Nh1 Rg8 Rf8 a8N+ Ka7 Nc7 Ra8 Rb2 Qf3 Rgd2 Qg2 Kc2 c3 Nc4 Qe2 Kb3 c2 Kc3 c1R+ Rdc2 Rb1 Rd2 Bd8 Re8 Kb8 a7+ Kc8 Rg8 Nf2 Rd6 Qd3+ Kb4 Qe2 Bg2 Rh1 Bc3 Rhc1 Bf1 Re1 Rd2 Nh1 Kb3 Qf2 Bb4 Rf5 Kc3 Re5 Rg7 Rb8 a8R Bh4 Ra1 Ra8 Rg8+ Bd8 Ra6 Kb8 Rac6 Ra4 Na6+ Ka7 Rc8 Bh4 Rce8 Ra2
1B2N1n1/QnB5/1rP2qpB/1B1Rp2k/N3b1n1/2Nr3N/RB1B3p/2B2K2 w - - 0 1 legal: proof: a4 c5 d4 f5 dxc5 b5 axb5 g6 f4 Bb7 e4 Bd5 exf5 Nf6 h4 Be6 g4 Qc7 g5 Qb7 h5 Qb6 h6 Ng8 f6 Bd5 f5 Bg7 hxg7 Kd8 f7 Qf6 gxf6 Bb7 Bd2 Ba6 Bc1 Bc8 f8B Ke8 b4 Kf7 c4 h5 b6 e5 b5 d5 b7 a5 b6 h4 c6 h3 c5 h2 c7 d4 c6 a4 Ra2 a3 Bb4 d3 Nh3 Nh6 g8N Ng4 Bbd2 Ra5 Nc3 Rh7 Qa4 Rd5 Qa7 Bd7 c8N Na6 b8B Nc5 b7 Nh6 Bc7 Rd6 b8B Nb7 Rg1 Be6 Nb6 Bd5 Rh1 Be4 Nba4 Kf8 f7 Kg7 Nf6 Ng8 Bb2 Rd4 Bdc1 d2+ Ke2 Kh6 f8B+ Rg7 Ne8 Rd3 f6 Kh5 f7 d1N Bb4 Nf2 f8B Ng4 Bba5 Rgd7 Bfh6 R7d4 Ke1 Rb4 Be2 Rb6 Kf1 Rg3 Bb5 Rd3 Ra1 a2 Rg1 Rd8 Rg2 Rd3 Rd2 Rg3 Rd5 Rd3 Rb1 a1Q Bb4 Qa3 Ra1 Qb3 Ra2 Qc4 Bc5 Qb4 B5e3 Qe7 Bed2 Qf6+
2K2n2/4R1R1/1b4bR/q3Bk1B/1Q3PNB/1r3bRq/Bnn2NR1/1qr1RR2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 Ke5 h5 b4 c4 d4 e6 g4 h4 b6 a4 b7 c3 f6 Kg6 f7 a3 d6 h3 b5 h2 d5 c2 b6 a2 d7 Qe8 d8R Na6 b8B Nh6 d6 Be7 f8R Ng8 d7 Ra7 b7 Bb4 Nc3 Rh4 Nf3 Be7 Qd4 Nc5 Be2 Rh6 Ne4 Rh4 Qb4 Bf6+ Kd6 e5 Kc7 Qe6 Rde8 Ra5 d8R Na4 Re7 Rd5 Rdd7 Nb2 Be3 Rh8 Rae1 a1Q Rhf1 h1B Nh2 c1N f4 Rd1 Bf2 Bf3 Bh4 Ncd3 Nf2 e4 Rd6 e3 Rff7 Rc1+ Kd8 Rc7 Rb6 Rc6 Be5 Rc1 b8R Qb1 Ra8 Bcb7 Ra3 Bbe4 Rc6 Qb3 Kc8 Qc3 Bd1 e2 Rb3 Nc4 Rb2 Na3 Rd2 Nb2 Rd3 Bh1 Rg3 Nc2 Rg2 Rh5 Rh7 Qh3 Rc3 Bg7 Rcg3 Nf6 Rh8 Bd5 Rh7 Bf8 Rh8 Bf7 Rh6+ Kg7 g6 Rg5 Rb7 Bc5 Re7 Rf5 g5 Bb6 Bd6 Re5+ Nhg4 Re3 Bc7 Nh7 Be5+ Kg8 g7 Nf8 Rg6 Kh7 g8R Rb3 R8g7+ Kh8 Rc6 Be8 g6 Bf7 Rgg1 Bf3 R1g2 Be8 Rgf7+ Kg8 g7 Kh7 Rce6 Bc7 Ra6 Bb6 g8B+ Kg6 Rg7+ Kf5 Bf7 Bd8 Rh6 Bb6 Bg8 Bg6 Bd5 Ra3 Ba2 Rd3 Rfg1 Rb3 Ref1 e1Q Be2 Qd2 Re1 Bf7 Rgf1 Bg6 Qa3 Bc5 Nf6 Ba8 Bh5 Bf3 N6g4 Qa5 Qb4 Bb6
b7/Q1Bqk2n/1P4RB/b1rn3B/N3nB1r/NBBB2b1/K2N1Nr1/2q4R w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 c5 b4 h5 g4 a5 d4 e5 Kd2 c4 Kc3 h4 Kb2 c3+ Ka2 c2 f6 h3 g6 a4 d6 e4 f7+ Kd7 f5 h2 b6 a3 b7 e3 f6 e2 g7 e1N d5 Rh3 g5 Rh4 g6 Qb6 b5 Rd4 Nf3 Rc4 Bd3 Rca4 Bb2 c1R Bc3 Rd4 Nfd2 Ra7 Qa4 Qa6 b6+ Nc6 b8B Ne7 g8B Kd8 g7 Rb4 d7 Qb5 Bf4 Rb7 Qa7 Nd4 Rg1 h1Q Rg6 Qf1 Bh7 Qc6 g8B Nb3 Be2 Nc5 Bh5 Bh6 f8B Nf3 f7 Ng5 Bfg7 Rb8 f8N Nce4 Be6 Bb7 Bf7 Nc8 Ne6+ Ke7 d8N Qd7 Nc5 Ba8 Ndb7 Rc4 Na4 Qd1 Bhg8 Nh7 Nd6 Bg5 Bh6 Bh4 Be2 Bg3 Bd3 Rb7 Be8 Rbc7 Be6 R7c5 B8f7 Qg1 Bg4 Re1 Bh5 Re2 Be6 Rg2 Bg8 Nef6 Ne4 Nd6 Nf2 Nde4 Bf7 Qc1 d6+ Kd8 Bg8 Nd5 Be6 Qe8 d7 Ke7 Kb3 a2 Na3 Qd8 Rb1 a1B Ka2 Qc7 d8B+ Ke8 Bhe2 Qd7 Bdc7 Ke7 Bd1 Rd4 Beg4 Rb4 Bh5 Bb2 Bb3 Rbc4 B3e5 Bc3 Ra1 Ba5 Rb1 Qc3 Rh1 Qc1 Bc3 Nd6 Be3 Rh4 Bef4 Ne4
bR1n4/4rn1k/3r1RbB/2P1BR1R/qbQNb3/3NbB1B/R2RK3/6Rr w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 g4 Kg7 c4 h5 b4 e5 f6+ Kh7 g6+ Kh6 b6 a5 b7 d5 f7 h4 f5+ Kg7 g5 a4 b5 e4 b6 d4 c6 a3 c7 h3 c5 e3 Qe2 a2 Bg2 h2 Nd2 d3 Ne4 Rh5 f6+ Kh8 g7+ Kh7 g6+ Kh6 Nf2 Qd6 Nf3 Rd5 Nd4 Qc6 Bf3 Bf5 c8B Be4 Bh3 d2+ Kf1 d1B Nd3 Bd6 f8R Bc2 f7 Qa4 Bd2 Nc6 b8R Re5 b7 Ra6 Rfd8 Re7 f8R Bf4 Rf5 Bb1 Rdf8 Bg5 R8f6 Nd8 Bc1 Rae6 Qc2 Rd6 Ke2 Bf4 Qc4 Bg5 Rd1 h1B Rd2 Bg2 Ra8 Bh1 b8B Bc2 Rb1 a1R Rb2 Bb1 Ra2 Bg2 Bc7 Bh1 Rb8 Ba8 Ke1 e2 Kf2 e1B+ Kf1 Rb6 Be5 Rd6 Ke2 Be3 Rf7 Nf6 g8R Nd7 g7 Kh7 R7f6 Bc2 Re8 Bg2 g8R Be4 Rd1 Bb4 Rd2 Bh1 Rg1 Rb1 Bg3 Ne5 Rg8 Ra1 Rgg5 Nef7 Be5 Ba8 Bh5 Bhc6 Bf3 Be4 Rh5+ Nh6 Nf2 Ra6 Rg2 Bec6 Rfg5 Bf4 Rd1 Bg6 Nd3 Bce4 Rgf5 Rd6 Be3 Bg5 Rdd2 Rh1 Rg1 Bf4 Bf2 Bg5 Bh4 Be3 Bg5 Kg7 Bgf4 Nhf7 Bh6+ Kh7
2B1rRN1/3RNn2/b1bb2Q1/2P1nNn1/qr2NB1R/2q4N/2Rb4/Nk1K1N2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 h4 Kf6 c4 g5 b4 e5 c6 a5 c5 d5 b6 d4 b7 d3 c7 e4 b5 g4 h6 a4 h7 g3 h5 a3 b6 e3 h6 a2 Rh4 e2 Nh3 g2 Nd2 g1N Qc2 Na6 b8N Be6 c8N Bd7 b7 Bg7 Ne7 Qb6 Nbc6 Qb5 b8N Bf8 Nd4 Bc6 Nd7+ Kf7 f6 Nb8 f5 Qa5 Nb3 Ke8 f7+ Kd8 f6 Kc7 Nf5 Bd6 f8R Qc3 f7 Ra4 Rd8 Rb4 Nf6 Nd7 f8R Ne5 Ne4 Kb7 Qb1 Ka6 Rd7 Kb5 Qc2 Ka4 Rb1 a1B Rb2 Ka3 Qb1 Qc4 Rc2+ Bb2 Na1 Ngf3+ Kf2 Ng5 Ke1 Qb5 Bg2 Qa5 Nf1 Qa4 Bf4 Bc1 Bf3 Be3 Bh5 Bc1 Bf7 Be3 Bc4 Bc1 Ba6 Be3 Bb7 Bc1 Bc8 d2+ Kf2 d1B Ke1 Rc4 Qb6 Rb4 Qa6 Nef7 Qb6 Nf6 Qa6 Rg8 h8N Ng4 h7 Nge5 Ng6 Rh8 Nge7 Bd2+ Kf2 Rg8 h8N e1Q+ Kg2 Rb6 Nhg6 Rb4 Qb6 Rh8 Ng8 Be2 N6e7 Ba6 Kg1 Qe3+ Kg2 Qc3 Kf2 Rb5 Ke2 Rb2+ Qb5 Ka2 Kd1 Kb1 Qe2 Rb4 Qg4 Rh6 Qh5 Rf6 Qg6 Re6 Nd5 Re8 Nde7 Qab3 Qg7 Qa3 Qg6 Qa4
R1R4R/1NbN1bk1/RK2b3/1P2r1r1/1n5B/Rn1Q2B1/B2q2RB/1n1qn2R w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 c5 d4 e5 b4 a5 f4 h5 g4 c4 f6 e4 d6 c3 b6 a4 d5 h4 Kd4 c2 Kc5 h3 g6+ Ke8 f7+ Kd7 b7 a3 f5 e3 g7 a2 f6 e2 g5 e1N b5 h2 g6 Ra5 Bc4 Nc6 b8B Qe8 Na3 Bb7 Kb6 Rh6 Qd3 Nge7 g8R Rh8 g7 Qc8 Nf3 Ra8 Ne5+ Kd8 d7 Ra7 Bf4 c1N Bg3 Rh5 Rh8 Rg5 g8R Nb4 Bb3 Qc3 Nac4 Bc8 Na5 Qd2 Rh6 Nec6 Rg7 Be7 f8B Ne2 f7 Rc7 Bh4 Bf6 Bd6 Ncd4 Rhg6 Rc1 Bdc7+ Ke7 d8R Be6 f8R+ Bf7 Nb7 Nc3 Nd7 Nb1 Rh8 Rc5 Bcg3 Be5 Rc8 Bd6 Bc4 Nb3 Rgg8 Bf4 Rgh6 Be6 d6+ Kf7 Bc7 Rce5 Ra8 Qb2 Ra3 Qc3 Rga8 Qd2 Rg6 Rd5 Rgg8 Rde5 Rgc8 Kg7 R8a6 Bf5 Rg1 h1B Rg2 Be6 Bh2 Nc3 Rd1 a1Q Rb1 Nd4 Ba2 Nb3 Rh6 Rc5 Rca8 Bg3 Re2 Bh3 Nb8 Bd5 d7 Bf7 d8R Nec2 Rg2 Bhe6 Rh1 Ne1 Rc8 Qad1 Nd7 Nb1 Rhh8 Rcf5 Bd8 Bb8 Bdc7 Rc5 Bcf4 Re5 Bfg3 Bc7+
1BB5/r2r2N1/1P2n2R/1KbB2BB/5Rq1/2bn1QR1/2bkrq1R/1B1Br2N w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 Ke2 f5 Kd3 h5 Kc4 c5 d4 f4 g4 a4 b6 h4 b5 a3 b7 a2 b6 h3 g6 h2 g7 f3 e6 Kf6 d6 f2 d5 Ke5 g5 Ra6 e7 Bg4 e8B Nh6 g8B Bg7 g6 Nc6 b8B Qf6 d7+ Qd6 d8R Bf3 Be2 f1R Bh7 Nf7 Nc3 Rf8 Nb5 Re1 Nh3 Nh6 Bg5 Ra8 Nf2 Ra3 Nd4 Nb4 Nf5 Rd3 Kb5 c4 Bd7 c3 Bc8 c2 Rc1 Rg8 Rf8 a1R Rf6 Bf8 g7 Nf7 Rh6 Nd8 Bg6 Qc7 d6 Ra7 d7 Ne6 d8R Bc5 Rd4 Re8 g8B Bg4 Ng7 Bf5 Rg1 h1Q Rg3 Qh3 Nh1 Qg4 Rb1 c1B Rb2 Bf4 Qb3 Bd2 Bd1 Bc3 Rbh2 Rd2 Bh5 Nd3 Rb4 Nd8 Bd5 Re7 Bg6 Rd7 Ra4 Rde2 Bh7 Nb4 Qa3 Kd4 e5 Be4 e6 Qcf4 e7 Qf2 e8B Ne6 Bh5 Bc2 Bf5 Ba1 Qf3 Bc3 Ra2 Nd3 Ra4+ B3b4 Bfe4 Kc3 Bh7 Ba5 Rf4 Kd2 Bf5 Bc3 Bfe4 Bb3 Beg6 Nb2 Bgc2 Nd3 Bb1 Bc2
br1b1N2/3B4/nkB4B/1bq4q/1pn2BBB/3Q2N1/1NrP1qN1/BRR1K3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 Kd7 f4 e5 a4 h5 g6 c5 g7 Kc7 a6 b5 f6 e4 f7 b4 d6+ Kb6 a5+ Kc6 a7 h4 a6 c4 d7 e3 g5 c3 g6 h3 f5 h2 f6 c2 Qe2 Be7 f8B Rh4 f7 Qb6 d8B Bb7 Bb2 Nh6 g8N Bf6 g7 Ng4 Bh3 Rh7 Bd6 Be7 f8B Nf6 Nh6 Nh5 g8N Bf6 Nc3 c1Q+ Nd1 Bc8 Nf3 Nf4 Qd3 e2 Nf5 Bc3 Ng3 Bg4 Rb1 Qa5 Bh6 Bf6 Ba1 Rc7 Ne7+ Kb6 Nh4 Qcc5 Neg6 Nd5 Nb2 Bd7 Nf8 Bb5 Bg4 Ne3 Ng2 Nc4 Bdf4 Be7 Rf1 h1B Rc1 Nc6 Rb1 Rb8 a8B Bf6 a7 Bg5 Bf6 Rcc8 B6e5 Bd8 Bf6 Rc7 Bh4 Qh5 Kf2 Rcc8 Rfc1 e1Q+ Kf3 Qg1 Ke2 Qf2+ Kd1 Qhc5 Bb7 Qh5 a8B Qa7 Ba6 Qe7 B6b7 Qec5 Ba6 N6a5 Bc6 Nb3 Ne1 Bd5 Ng2 Be4 Bd7 Ba8 Bb7 Qd6 Ne3 Nc5 Bbc6 Na6 Ng2 Qdc5 Qa3 Qcg5 Bd5 Na5 Qd3 Rc2 Bb7 Nc4 Bbc6 Qf3+ Ke1 Qc5 Be5 Qff7 Bd6 Qf3 Bdf4 Qff2+
1r1R3n/3QbR1B/2BB3r/pP2q1B1/k2r2B1/3R1qn1/n1KN2NB/2B2R1b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 e5 d4 a5 Kd2 h5 g6 h4 d6 h3 d5 c4 f6 c3+ Kc2 e4 g7 h2 f7 e3 f5 e2 g5 e1Q f6 Qc7 g6 Qh4 b6 Qh3 b5 Qh7 b7 Ne7 g8B Bh6 f8R Qg7 f7 Qc4 Ne2 Bf4 Ra3 Qgd4 g7 Qc6 Bg2 Qe5 Rf1 h1N Bh7 Bg5 g8B Ng6 Nd2 Ng3 Nf4 Na6 b8B Be7 Bf3 Bb7 Ng2 Nf4 Bhe4 Rh6 Bgh7 Ng6 Bc7 Re8 Bb8 Nh8 Bg4+ Kd8 d7 Nb4+ Kb1 Na2 Kc2 Qcf6 Bd6 Qf3 Bb8 Bd6 Bc7+ Ke7 d8R Kf6 Bb8 Be7 d6 Bc6 d7 Ba8 Bh5 Ke6 Bc6 Bb7 Rc8 Ba8 d8B Bb7 Rc7 Kd6 Bg4 Kc5 Rg8 Kb4 f8B Ba8 Rb3+ Ka4 Ra7 Ba3 Bg5 Be7 Bd6 Rb8 Rb7 Bd8 Rf7 Be7 Bg7 Qe1 Bd4 Qe5 Rd8 Bb7 Bg1 Ba8 Kb1 Bb7 Bh2 Ba8 Ka1 c2+ Rc3 Bb7 Kb2 Qd3 Bcd7 Qg7 Bc7 Qe5 Nh4 Bd5 Ndf3 Kb4 Bce3 c1R Bc6 Qc4 Qd3 Be6 Qd7 Qcd5 Bd6+ Ka4 Bef4 Rd1 Bc1 Rd4 Kc2 Bf5+ Rd3 Be4 Nd2 Bh1 Ng2 Qf3
N2R1b1R/rQ1N2r1/1NNb1p2/1N1n1KN1/1Br3B1/2B3N1/kqB2P2/3rr2b w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Nd7 exd7 Kg6 Ne2 Bg7 Ng1 Bf8 Kd2 Kf5 Kd3 Ke5 g4 c5 b4 a5 g6 h5 g7 f6 g5 h4 g6 a4 b6 h3 b7 h2 b8B a3 b5 e6 b6 a2 b7 Ne7 g8N Rh4 g7 Rha4 Ne2 Ng6 Qb3 Rg4 Bb2+ Kf5 Ng3+ Kf4 Bc3 e5 Bh3 Be7 Na3 Rg5 Rad1 a1B Nb5 Ra4 Bg4 Qe8 d8N Ra7 d7 Bf8 d6 Ne7 Nf7 Nd5 d8N Bd7 Bc7 Bc6 b8N Bb2 d7 Ba3 Bd6 c4+ Kd2 Qe6 Bdb4 e4 Ne7 Qe5 g8B Rg7 Nc8 e3+ Ke2 Qd4 Ng5 Ke5 Kf3 e2 Nb6 e1R Nde6 Bb7 d8N Bc6 Ba1 c3 Nec7 c2 Bac3 c1R Bh7 Bd6 Bc2 Ba8 Rf1 h1R Qb1 Bb7 Nca8 Rh4 Rd3 Rcd1 Rh1 Bf8 Ba5 Bad6 Bab4 Rhh7 Rh6 Rc7 Rd2 Rhg7 Rh8 Rc4 Qa2 Bc6 Qa6 Be8 Qb7 Bg6 Kg2 Be4+ Kh3 Bh1 Ndc6+ Kf4 Re2 Qd2 Re8 Qc1 Rd8 Qb2 Ncd4 Ke5 Nc8 Ne7 Ndc6+ Kd5 Nd7 Rc5 Bg6 Kc4 Ncb6+ Kb3 Bc2+ Ka2 Kh4 Nd5 Kh5 Rf7 Kg6 Rc4 Kf5 Rg7
r1NNN3/B1BN3p/q1bqQ3/Pk2n2B/1n2NB1p/R1b2r2/4NnN1/2R1K3 w - - 0 1 illegal: Other
7R/RpB3rB/nnBB1pNP/b5p1/BN3b2/K3r2B/2B2kN1/2NQ1b1q w - - 0 1 illegal: No proof kernel
R1rNrN2/n2bR1pK/B2r4/B1br1R2/3PbB2/k4Bn1/2RR3R/1Q1B4 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Qf6 d5 Qh6 Bb2 Qa6 Bc1 Qa5 bxa5 Bb4 Qc2 Bd6 Qd1 Bf8 Kf2 Kd7 Ke3 f5 Kf4 c5 Kg5 c4 Kg6 a3 h4 a2 e4 c3 d4 c2 h6 f4 b6 f3 h7 f2 e6+ Kd6 b7 Be7 h5 Na6 b8R Nc5 a6 Bg5 e7 Nd3 e8B Nf6 h6 Bf4 e5+ Kc7 a7 Bb7 e6 Kd6 e7 Rf8 h8R Nb2 h7 Bc8 Na3 Ng8 Ne2 Bh2 Nf4 Bg1 Ba6 f1B Ne6 Be2 Rh5 Rf5 Nf8 Bc4 Ba4 Nd3 e8R Bb7 Rbc8 Nc5 Re7 Bb5 Bf4+ Re5 Qc1 Bh2 Rf5 Bd7 Qb1 c1R Bd1 Ne4 Rc2 Re8 a8B Ng3 Nc4+ Kc7 d6+ Kc6 Rd2 Kd5 Na5 Rcc8 Rff7 Bbc6 Nb7 Rh5 Nd8 Re5 B6b7 Kc4 Rf5 Be4 Ba6+ Kc3 B8b7 Rd5 Bc6 Nf6 Rg8 Ng4 h8R Ne5+ Kh7 Nd3 Ba8 Ne5 B8b7 Nc6 Ba8 Na7 B8b7 Bb5 d7 Kc4 Qc2+ Kb4 Rc1 a1R Qb1+ Ka3 Rcc2 Rd6 Bc6 Bed3 Bcf3 Be4 Nb7 Rd5 d8B Bd7 Ba5 Ra2 Nd8 Rb2 Kg6 Rb3 Rh3 Rb6+ Kh7 Rbd6 Rh8 Bg1 Rhh2 Be3 Rde2 Bc1 Red2 Bb2 Rg8 Bc3 Rh8 Bb4 Nf7 Rc4 Ne6 Rb8 Rhe8 Rc7 Nf8 Bc5 Rd8 Rb4 Ra8 Rb8 Bh6 Rcc6 Bf4 Re8 Nd8 Rc8
1r1N4/1B3R2/Br1bpr2/B2R2pn/B3N1Nr/2K1b3/P1Q1B2N/3qBN1k w - - 0 1 illegal: No proof kernel
1b4bR/1Bq1NN1b/1R4n1/BNNq1r2/r1B5/1BP4n/1n3NkB/KQNr4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 a5 b4 e5 Kb2 d5 g4 h5 f4 a4 c6 h4 b6 d4 c7 h3 g6+ Kf6 g7 h2 b5 e4 g5+ Kf7 b7 d3 g6+ Kf6 b6 e3 Nd2 e2 Ne4+ Ke7 f6+ Ke6 f7 Kd5 f5 e1R f6 d2 Nf2 Rh6 Rb1 a3+ Ka1 a2 Ne2 Be6 c8B Na6 b8B Bc5 f8N Ne7 g8B Nc7 b7 Be3 f7 Rh4 g7 Rb4 Nh7 Ng6 f8N Ra5 Ng5 Bf4 Nd7 Bf7 c3 Ne6 Ba3 Qc7 Nc5 Bg3 Nc1 Nef4 Qc2 d1N Bc4+ Ke5 Rb3 Nh3 Qb1 Kf4 Rb2 Be6 Nf7 Kf3 Rb3 Kg2 Rb2 Rba4 Rb6 Nb2 Bb4 Rd1 Bb3 Rb5 Ba5 Rf4 Bc4 Rb4 Bb3 Rf5 Bc4 Qe5 Bc7 Qe4 b8N Qd5 Nc6 Bd6 Bb7 Bg3 Rf1 h1B Nd4 Be5 Nb5 Bd6 Bd8 Bb8 Re1 Kh2 Rf1 Be4 Bc7+ Kg2 Bh2 Bc2 Bh7 Be4 g8N Bc2 Ne7 Be4 Nh6 Bg8 Rh1 Rf4 Bc8 Ng1 Nf7 Nf8 Bhf5 Bf3 Bc2 Bh5 B2b3 Rf5 Ba6 Bg6 Bc8 Nd3 Ba6 Ne1 Kb2 Nd3+ Kc2 a1Q Bc7 Qf3 Rh3 Qd5 Rh8 Nh3 Bh2 B6h7 Bc8 Ng6 Ba6 Ra4 Bc8 Qa3 Ne6 Qac5 Bb7 Qc7 Nc5 Rb4 Nd8 Nde5 Kb2 Nd3+ Ka1 Nb2 Nf7 Ra4+
R2r1BB1/R1rN2R1/3Knn2/5Q2/R3r1B1/N2b2Rq/2bkBPrB/1R2bq2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 g4 a5 f6 h5 d6 e6 d5 c4 b6 c3 d7 h4 g6 a4 d6 c2 b7 a3 g7 h3 g5 a2 g6 h2 f7 Na6 b8R+ Bb7 Qd5 Nc5 Na3 Qh4 d8R Na6 d7 Nf6 g8B Qc4 g7 Bc5 f8B Kb3 Bf4 c1R Be2 Bb4 Nf3 Nc5 Kd6 e5 Rg1 h1B Be6 e4 g8B e3 Rg3 Ba6 Qf5 Rh2 Ne5 Be4 Rb7 Bc2 Ra7 Rg2 Re8 Rd8 Re7 Ba5 Reg7 Be1 Rb1 Kb4 b3 Kc3 b4 a1Q b5 Qaa2 b6 Kd2 b7 Qab3 b8R Qcb5 Rba8 Q5d3+ Bd5 Ne6 Bg4 Qe2 Bdf3 Qf1 Be2 Bad3 Ra4 Bd1 R8a7 Rc7 Rb4 B1c2 Rba4 Re8 d8R Qc3 Rdb8 Rd8+ Nd7 Qb3 Bd1 Qc3 Be5 e2 Rba8 Qd4+ Ke7 Qe3 Kd6 Qh6 Re3 Qh5 Bh2 Qh3 Rg3 Kc3 Ke7 Bd2 R7a5 e1R R5a7 Re4 Bde2 Be1 Kd6 Kd2
1br1R2B/3BNN1B/2Nq1n1P/B4RK1/NN2B1N1/4bn2/b1qrk3/1Q1q3b w - - 0 1 illegal: No possible last move
1RN1N2k/q1b2K1b/2PNn3/R2R1rbn/1BQ4n/4N2B/1Rrn1R2/2N2qN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 e5 Ke4 g5 Kd5 Kg7 h4 a5 b4 g4 f4 e4 c4 g3 f6+ Kh7 f5 a4 b6 e3 b7 g2 f7 e2 f6 e1B b5 d6 b6 a3 h6 a2 c6 Be7 f8R Ra4 c5 Bf5 c7 Bg4 c8N Ra7 c6 Bg3 f7 Be2 Ke6 d5 h5 d4 Qa4 d3 Qc4 d2 Nc3 d1N Ba3 Bgd6 Nd5 Bh4 Ne3 Be5 Bb4 Na6 b8R Nb2 b7 Be1 Rh2 Qh4 Rd8 Qf2 f8R Bd3 Rd5 Bc7 Rf3 Nc5+ Kf7 Ne6 Rf4 Qc2 Rff5 Qa4 Rf2 Nd1 Rb2 Nf6 Rf2 Re8 Rb2 Kh8 h7 Bb1 Nf5 Ng7 Ne2 g1N Rd8 Ra5 Bh3 Bcg3 Rf2 Bc7 Ra8 Nf3 Ng1 Bd2 Rd4 Qa3 b8N Nh4 Nd7 Nc3 Nc5 Re2 Nb3 Ne6 Rb8 Bg5 Ne3 Nce4 Rd1 Re5 Rd5 Qa5 Qd4 Qb5 Nc1 Rd2 Qc3 Qf1 Qc4 Bd3 Ke7 Kg7 h8N Nc3 h6+ Kg8 Nf7 Rc2 h7+ Kg7 h8N Nb1 Nd8 Kh7 Nb7 Nd2 Nf7 Kg7 Nfd6 Kh8 Ne8 Bh7 Nbd6 Rf5 Rab1 a1Q Kf7 Qa6 Ra1 Qa7 Raa5 Nh5+
RQ1BN2n/B2R2r1/RB3bpR/4R1BP/2bn1q2/Nq3n1B/k7/3KR1br w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 f4 Kd6 h4 e5 d4 c5 f6 a5 f5 g6 h6 a4 h5 a3 h7 e4 f7 c4 f6 e3 b6 a2 b5 c3 b7 c2 b6 e2 Na3 Qd7 Nh3 Nh6 Bg5 c1N Qb3 Ra4 Nf2 Qb5 Ne4+ Kd7 d6 Kc6 d7 Bg7 d8R Rf8 h8R Qe5 Bh3 Ra7 Rd7 Qf4 Nd6 Rg8 f8B Nf7 d5+ Kc5 Rg1 Nc6 b8R Nd4 Ra8 Ba6 b7 Bc4 Rh6 Nh8 f7 Bf6 b8B Rg7 Rh1 Ra6 Ne8+ Rd6 Qb2 Ncb3 Ba7+ Kb4 Be7 Ka4 f8R Nd2 Qb8 Re6 Bb6+ Kb3 Bec5 Ree7 d6 N2f3+ Kf2 Re3 Rhe1 Rc3 Rff7 Rc1 Rfe7 Kb2 Re5 Rd1 Rc1 a1Q Rc2+ Kb3 Ra2 Qc3 Ba7+ Qb4 Bcb6 Rb1 Nb5 Rd1 Ra6 Rc1 Na3 Ka2 Rc7 Rb1 d7 Qb3 d8B Rd1 Rd7 Rb1 Rg1 Ra1 Rg3 Rh1 Rg1 Be6 Rf1 Bf7 Rg1 e1B+ Kf1 Bb4 Kf2 Bc5 Rge1 Nf5+ Ke2 Bg1 Rdd1 Bc4+ Rd3 Qb2+ Kd1 Qb5 Rd6 N5d4 Rd7 Qb3+
B1NN1N1r/bB2bbBP/1nQN3K/r5Rr/3n2RB/3BkN1q/3p4/1N2q3 w - - 0 1 illegal: No possible last move
nBB1QNBk/2KN3P/1Bb2qrn/1pqR1q2/1rR5/1NNB4/5r2/2bBN3 w - - 0 1 illegal: No possible last move
kBQ2r2/bb2pN2/BBn1R1n1/B1R2NqR/q5Bq/R7/1BK2n1P/rR6 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 b4 d5 c4 Kd7 f4 Kc7 b6+ Kb7 f6 a5 c6+ Ka6 c7 Kb7 c5 a4 f7 g4 f5 d4 f6 g3 h6 d3 h7 a3 b5 a2 Qc2 g2 Nc3 Bg7 f8R Na6 f7 Bf5 c8B+ Kb8 b7 Be4 c6 Qd4 c7+ Ka7 b8B+ Kb6 Nd5+ Ka5 b6 Ra7 b7 Nh6 Ne3 Kb6 Nf5 Bd5 Bb2 Bf3 Nh3 g1Q Ng5 Rg8 h8R Ng4 Rh5 Rh8 Rg8 Bc6 f8B Ne5 Nf7 Ng6 Bh3 Bf3 Bg4 Nb4 Rb1 Qg3 Rhe1 a1Q Re6+ Nc6 Kc1 Be5 Bh6 Qaa4 Bd2 Bd6 Rd8 Bc5 Ba5+ Ka6 Rd5 Rf8 Rde5 Qgf4+ Re3 Qg5 Kd2 Ra8 Ba7 Bd5 Kd1 d2 Ra3 Qf2 B7b6 Qfh4 Bd7 Ra7 b8B Kb7 Bc8+ Ka8 Ba6 Be3 c8R Bh1 Ke2 d1N Kd3 Nf2+ Kc3 Nd4 Rc5 Bb7 Qd2 Nc6 Qd8 Nge5 Qc7 Ng6 Qc8 Qg3 Bd8 Q3h4 Bae2 Nce5 Rb3 Nd7 Bb4 Bc1 Rce5 Qa5 Kc2 Be3 Bf1 Bb6 Rc5 Nde5 Be1 Qb5 Rd3 Ra2 Ba5 Ra1 Ra3 Ba7 Bdb6 Nc6 Bd3 Qb4 Ba6 Qa4+
2n2q2/1kP3rN/2b2Q2/2qr4/RnBNB3/BB1BRqbK/Rb1pR3/R4R2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 a5 Kf2 h5 Kg3 d5 b4 Kd7 c4 Kc7 b6+ Kb7 c6+ Ka6 b7 e5 g6 h4+ Kh3 a4 g4 e4 g7 e3 f6 a3 b5+ Kb6 f7 d4 c5+ Kc7 f5 d3 f6 a2 Ba3 e2 Rh2 e1Q Nd2 Qee7 Ne2 Na6 b8R Qdd7 b6+ Kd8 b7 Kc7 Nf3 d2 Ng5 Qed8 Nh7 Qd6 Nd4 Q8d7 Re2 Ra7 Ra8 Qd5 b8R Ne7 g8B Q5f5 Rb2 Bh6 f8R Qg5 f7 Nb8 Re8 Qh5 f8R Qdf5 Bb3 Bd7 Rf7 Rb7 Ra4 Nc8 R8e3 Na6 Qc2 Rg8 Qc3 Rd8 Rf8 Kb8 c7+ Ka7 c6 Bf4 Bg2 Bg3 Be4 Qff7 Bd3 Qc5 Be4 Qfe7 Rff1 Qf8 Bc4 Be8 g5 Rd5 g6 Ka8 g7 Ka7 Kg4 h3 g8B h2 Rc2 Kb6 Kh3 Nb4 Be6 Na7 c8B Rg7 c7 Bc6 B8a6 Nc8 Bb3 Ka7 Bad3+ Kb7 Rad1 a1B Ra2 Bb2 Rda1 Rd6 Bec4 h1Q+ Rh2 Qhf3 Rhe2 Qd8 Ne6 Qe8 Qf6 Rd5 Nd4 Qef8
7r/RRK1r1k1/1NB3b1/qr1Q1RR1/bp2PrRB/b3B1n1/B3N3/1BB4n w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 f5 Ke3 Kf7 Kd4 g5 a4 b5 e4 f4 h4 c6 e6+ Kg7 Ke5 g4 d4 g3 e7 g2 e8R b4 h6+ Kf7 a6 c5 d6 f3 h7 c4 d5 c3 a5 f2 a7 c2 a6 Kg6 h5+ Kf7 d7 Be7 h6 Bg5 Kd6 Bf4+ Re5 Bh2 Ne2 g1R Nd2 Rg2 Rg1 Qg5 d8R Bb7 Kc7 Qg6 d6 Bc6 d7 Ne7 Rg8 Qf5 d8B Bf4 Nc4 Nd7 Nb6 Rg7 Rg5 Rb8 a8B Ba4 a7 Nf6 Bc6 Nh5 a8B Ng3 Qd5+ Kf6 Be3 c1R Rg4 Rf7 R8g5 Nh1 Bb7 Rc5 Ba6 Rff8 Bc4 Rb5 Ba2 Re8 Bb1 Rhf8 Bh3 f1B h8R Bg2 h7 Bf3 Rhg8 Rf7 R5g7 Bh6 R4g5 Bh5 h8B Bg6 Rg4 Qh5 Bc1 Bd2 Rgg5 Bc3 Be6 Bb2 Rg4 Ba3 Reg5 Qh6 Rf8 Qh3 Qd1 Qd3 Bea2 Qd5 Qd4+ Ke6 Qd1 Rf4 Rff5 Ra8 Rh7 Rb8 Bd4 Ra8 Rff7 Nf5 Bde3 Nfg3 Rff5 Rh8 Bf6 Rae8 Rd7 Re7 Qd3 Kf7 Qd4 Qc4 Qd5+ Kf8 Kd8 Bb3 Rb7 Bb2 Rh5 Qc2 Bh4+ Bf6 Rhg5 Kg7+ Be8 Qd3 Kc8 Bc2 Bb3 Bb2 Raa7 Qc3+ Bc4 Qa3 Bca2 Qa5 Kd8 Ba3 Kc8 Rh7 Bd7 Ba4 Kc7 Re6 Be8 Rh8 Bc6 Re7+
7R/b1RRR3/knrP1B1N/3KB3/N4r1R/1R1pB2r/n2Qr1n1/1b2BB1q w - - 0 1 illegal: No proof kernel
1r2R3/1q1B4/k3n1R1/nRR4r/1n1n4/qpP1NBBQ/3NbRB1/1BbB3K w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 a4 h5 f4 e5 Kf2 d5 g4 Kd7 Kg2 Kc7 a6 b5 a5 b4 g6 b3 f6 h4 f5 e4 c6 e3 f7 e2 c3 e1Q f6 d4 g7 d3 g5 d2 g6 Qde7 a7 Bb7 a6 Kb6 Qf3 d1N c7 Qd6 c8B Bc6 Nd2 Bb5 Be2 Rh7 Nh3 Qc7 Ra5 Rh5 Nf2 Rh7 Bd7 Bd3 Rc5 Qc6 Ng4 Qe4 Ne3 Nb2 Bd1 Nh6 g8R Be2 g7 h3+ Kh2 Be7 f8R Nc6 f7 Nc4 Re8 N4a5 f8R Rb8 a8B Nf5 a7 Nb4 Rf1 Bh4 Kh1 Nd4 Rff5 h2 Bac6 Ne6 a8B Qg3 Rf2 Bg5 Rb5+ Ka7 Rfc5 Rh5 Qg2 Qh7 Bf3 Ka6 Qh3 Qd6 Bae4 Bf4 Bb1 Bh6 Rgf8 Qe4 g8B Qb7 Rf6 Qe7 Rg6 Qf8 Kg2 h1N Kh2 Ng3 Kg1 Ne4 Kh1 Ng5 Bf7 Qd6 Bg2 Nd4 Bfd5 Nge6 Bdf3 Bg7 Ndf1 Qe7 Bd2 Qf8 Be1 Bh6 Nd2 Nd5 Rc7 Qa3 Rcc5 Bg5 Rf1 Nb4 Bg3 Bh6 Rf2 Qa1 Ng4 Bd3 Nf1 Bc1 Nge3 Be2 Nd2 Qa3
BR1N3R/2N2NRb/2R2nNP/2r1K2R/1BpN1R1q/8/kq1n2Qb/br5b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 f5 h4 a5 d4 c4 b4 a4 e4 g6 d6 Ke6 d5+ Kf7 e6+ Kf6 e7 a3 e8R a2 e5+ Kf7 e6+ Kf6 h6 Nd7 b6 Be7 b5 Qc7 h5 Nf8 b7 Ra5 b8R Bb7 b6 Qc8 h7 Rc5 d7 Qd8 Nf3 Bd6+ Ne5 Ne7 h6 Bc6 b7 g5+ Ke3 f4+ Ke4 g4 Qe2 f3 Qg2 f2 Bd2 g3 Ng6 Qb6 d8N Qb2 Rh5 Nd7 Nf7 Ne5 Rec8 Nf3 Nc3 Rf8 Re1 a1B h8R Rg8 Be2 f1B Nb5 Rg7 Bb4 Nd2+ Ke3 Rg8 Bf3 Bd3 Rg1 Be5 d6 Bce4 Qe2 g2 d7 Bh2 d8N Bc2 Rf1 g1Q+ Rf2 Rf8 Rc6 Qg4 Nd4 Qh4 Rh7 Rg8 Rg7 Bb1 Rf1 Re8 Qg2 Nd5+ Ke2 Bbc2 Rbc8 Re7 b8R Rb7 e7+ Bd6 N8e6 Bh2 Rh8 Rb6 Ngf8 Bh7 e8N+ Ke7 N8c7 Bce4 Nfg5+ Kf6 Nd8+ Ke5 Ngf7+ Kf4 Kd1 Ke3 Ng6 Kd3 Be2+ Ke3 Rf4 Rbb5 Bg4 Kd3 Bc8 Rb6 Bb7 Rbb5 Ba8 Rb7 Ba3 Kc3 Ke2 Rbb5 Qf1 Bh1 Qg2 Qc2 Bb4+ Kb2 Rc8 Ka2 Rb8 Nf1+ Kf3 Qb2 Ke4 Nd2+ Kf5 Qc3 Ba5 Rb1 Bb4 Qb2 Ke5 Nf6+
kqrq2qb/6p1/B3B1NN/3nnBBr/1R2Nr1N/NRB2q2/2N3P1/1KQ5 w - - 0 1 illegal: Other
2K4n/B3N2Q/kBn2b1p/bN5b/q2r2B1/R1BNB1N1/P3p2r/Rr3BN1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kd3 c5 Kc4 Kc7 Kb5 e5 g4 h6 d4 c4 f4 e4 g6 e3 d6+ Kd7 g7 b6 d5 e2 f6 c3 a6 c2 f5 Ra7 f7 Qf6 g5 Qe7 f6 Rh7 g6 Kd8 d7 Kc7 d8B+ Kd6 Na3 Qe3 Qd3 Rb7 a7 Qf2 a8B Qf5 Rh3 Qe5 Be3 Nd7 Ka6 b5 Ba5 c1B Bc3 Kc7 d6+ Kc6 Rg3 b4 Nb5 Nb6 d7 b3 d8B Ne7 g8N b2 g7 Nc4 Bdb6 b1R Qc2 Rh8 Qh7 Bb2 Rf3 Ng6 Ne7+ Kd7 g8N Qd4 Rh3 Nce5 Nf5 Kc6 Ng3 Bb4 f8B Bg4 f7 Bh5 Bfc5 Ba5 f8N Qa4 Nd7 Rd1 Ba7 Rd4 Bcb6 Rh4 Nc5 Rd4 Nf6 Rg8 Nd3 Nh8 Nd5 Rf8 Bcd2 Rf2 Bc3 Rh2 Ne7+ Kd7 Qg6 Rb8 Bf3 Nc6 Qh7 Rb7 Na3 Rb8 Bg4+ Kd6 Nc8+ Kd5 Nb5 Kc4 Ne7 Rf4 Bcd2 Bf6 Be1 Rd4 Bc3 Rg8 Kb7 Rg5 Nc7 Rb5 Kc8 Rb1 Ne8 Kb5 Nd6+ Ka6 Nb5 Bh4 Bg5 Bf7 Ne5 Bc4 Bb2 Be1 Ne4 Rdd1 Ra3 Rd4 Ng3 Ba5 Be3 Bf7 Nd3 Bh5 Bc3 Bf6
1rBKn1qk/2BQ4/p5RB/RB3R1b/1bp1P1n1/n4R1B/NN6/2Brr1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 c5 Kg3 f5 Kh4 Kf7 d4 Kg7 g4 h5 e4 a6 b4 f4 b6 f3 b5 f2 b7 c4 e6 Bc5 e7 Ra7 e8B Bd7 b6 Ne7 d6 Bc6 g6 Bd5 Kg5 h4 d7 h3 Nf3 h2 Ne1 Ba3 Nc3 Bb4 Bh3 f1R Rg1 h1N Nd3 Nf2 Na2 Rh7 Nb2 Nbc6 b8R Qc7 d8B Re1 b7 Ne5 Bb5 Bc6 d5 Bc3 d6 Nfd3 d7 Qc8 Bc7 Bd5 d8B Kh8 Kf6 Re2 g5 Bd4 g7+ Kg8 Ra8 Rh5 b8R Ne1 Rb7 Kh7 g8B+ Kh8 g6 Bc5 Bge6 Nf5 Rbb8 Bc6 Qd7 Nd6 Ke7 Nc2 Bef5 Re1 g7+ Kg8 Bfg4 Na3 Rb7 Kh7 g8R Bb4 Rg6 Kh8 Rb6 Rh6 Rg5 Bd5 Rf5 Ne8+ Rd6 Bf7 Rb8 Ba5 Rg6 Ra8 Rbb6 Bc3 Rbf6 Rb8 Rf3 Ba5 Be6 Bd2 R6f5 Ng4 Bf4 Rh7 Bdc7 Rg7 Bh6 Rg8 Rgg5 Bh5 Rg6 Bb4+ Qd6 Qb7 Bc8 Qd5 Kd8 Rf8 Qd7 Qg8 Bhg5 Rf6 Bh6 Rd6 Nc3 Nb1 Ra5 Rdd1 Na2 Na3
1qB5/1pRB1b1R/1R2PB2/k2qK1b1/1n5r/2B3QR/pN3rBR/Rn1Nb3 w - - 0 1 illegal: No proof kernel
1B6/rRB1b1Rp/NR2BkB1/nR1p3n/r1q2NP1/2n5/2bRnKQ1/2B1R3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 c4 e5 g4 d5 b4 a5 g6+ Ke7 g7 a4 b6 e4 c6 a3 b5 e3 f6+ Ke6 b7 a2 c7 e2 f5+ Ke5 c5 Qe8 b6 Ra7 c6 Be6 c8R Nd7 b8R Be7 f7 Rc7 f8B Bc5 f6 Qf7 b7 Be3 Qc2 Ba7 Rh6 Qg6 f7 Ndf6 Nc3 Qg5 Na4 Bf5 Nh3 Be6 Bd6+ Kd4 f8R Qf4 Rf7 Bf5 Nc5 Ne4 Na6 Ngf6 g8R Nh5 Rgg7 Nc3 Re6 Re7 c7 Bc5 Rh6 Qe4 Kf2 e1N Nf4 Nf3 Bd3 Ng1 Re8 Rd7 c8B Nge2 Bc7 Be7 Rb6 Rg8 Rab1 a1N R1b5 Nb3 Ra8 Na5 b8B Rf8 Ra7 Rg8 Rab7 Rh8 Qa2 Bg6 Bb1 Qd3 Rff6 Qc4 Rff8 Bc2 Rf5 Rd6 Be6 Rd7 Re5 Rg8 Re3 Rf8 Rd3+ Ke4 Rd2 Rf5 Rd6 Ke5 Rdb6+ Kf6 Qb2 Bd1 Bd3 Re5 Bg6 Re4 Qc2 Rd4 Qe4 Bc2 Qg2 Rd8 Ba7 Ra8 Bab8 Ra7 Bef5+ Bd6 Re5 Re4 Be6 Rd4 Re4 Be7 Re3 Qb3 Re5 Ra4 Re4 Qc4 Re3 Neg3 Re1 Nge2
B1B2Rqk/2nnRr1b/Q3N3/1R2b3/bp6/2B2Rp1/n1B1K1Pn/2B1RB1N w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 fxe5 b5 h4 a5 b4 g4 bxa5 Ra6 Nc3 Rg6 Nb1 Rg5 hxg5 Ba3 Rh4 Bc5 Rh1 Bf8 d4 c5 e4 h5 a4 f5 g6 c4 e6 h4 g7 h3 d6 h2 d7+ Ke7 d5 Kf6 d6 g3 e5+ Kg6 e7 Kh7 e8R b4 a6 c3 a5 c2 e6 f4 e7 f3 a7 f2+ Ke2 Nc6 a8R Nb8 a6 Qa5 d8R Nf6 g8B+ Kg7 a7 Be6 d7 Bf5 Nf3 Bh3 Bb3 Bg4 Qd3 Qb5 Ra3 Qf5 Qa6 Rh7 Nd2 Qg6 Ne4 Bf5 Nd4 Nd5 Ne6+ Kh8 Ra5 Rg7 Rb5 Nc7 Rc8 Qh7 d8B Nd7 Rab8 Rf7 a8B Qg8 Ba4 Nd5 Rc3 Bg7 Rf3 Bh7 Rf8 Nc7 e8B Bd4 R8b7 Be5 Rg1 h1N Bdg5 Rf6 Bgd2 Rf5 Bh5 Rf7 Bc3 Rg7 Ba3 Rf7 Bg4 c1N+ Ke3 Bf6 Bc2 Na2 Bc1 Be5 Bc4 f1B Nf2 Bfd3 Re1 Bdg6 Bf1 Be4 Ke2 Bc6 Nd1 Nf2 Bgf5 Ne4 Nf2 Nef6 Nh1 Ng4 Ra7 Nh2 Bh3 Ne8 Bg4 Nc5 Re7 Nc7 Nd4 Be8 Bc8 Bc6 Ne6 Nd7 Ra5 Ba4 Rd5 Nf6 Rb5 Nd7
3B1Nk1/1BN2N1R/1q5n/N3pN1R/1nRrP1nN/Rp1p2QR/q2r2K1/1b6 w - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 bxa5 Nf6 f4 Ng8 fxg5 Bh6 Nf3 Bg7 Ng1 Bf8 g4 e6 h4 Qc7 h5 Nh6 g6 Na6 g5 Ng8 h6 Bg7 hxg7 Nb8 Bb2 Qb6 Bc1 Qd8 Kf2 b5 a4 h5 e4 d5 c4 f5 c6 f4 c5 h4 c7 f3 c6 h3 a6 d4 a7 b4 a5 h2 a6 e5 Qd3 b3 Nd2 Bg4 c8R Rh7 c7 Ne7 g8N Kf8 g7+ Kf7 g6+ Ke8 Nh6 Bf5 g8R+ Kd7 g7 Ke6 Ra3 Nbc6 Rh8 Bh3 g8R Qd5 Nf5 Kf7 Rg3 Ng8 Nc4 Rh4 Bg5 Rh7 Na5 Qd7 Bd8 Bg2 Rh3 Qe6 Be2 Rh4 Rh5 Nb4 Kg3 f2 Nf3 Rf4 N3h4 f1Q Qc3 Rb8 a8N Rf2 a7 Qa1 Ba6 Qb6 Bb7 Rd2 Qf3 Bf1 Qf2 Ba6 Kg2 Be2 Qg3 Qa2 Rh7+ Kf8 Rh5 Nf6 Rh7 Ng4 Rh5 Kg8 Rh7 Qg6 Nb6 Nh6 a8N d3 Nd7 Bd1+ Kf1 Bc2 Nf8 Qg4 Nb6 Qg6 Nd5 Rd1+ Kg2 Ra8 Rf1 h1N Rf4 Ra6 Rg4 Ra8 Rg5 Nf2 Rh5 Bb1 Rb8 Nf7 c8N Rd2 Nc7 Nh6 Ncd6 Ra6 Nf7 Rd6 Ra8 Rd4 Ra6 Nc2 Rc6 Nb4 Bg5 Qf6 Rc4 Qb6 Bd8+ Nfg4+
3NK1Q1/N1q3Q1/2B4N/6qQ/3nRn2/k2n1Qq1/BRPbRR1B/2q2b2 w - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 g4 h5 gxh5 a5 d4 c5 bxc5 b4 c6 b3 axb3 Qb6 b4 Qd8 b5 Ra7 b6 Rb7 cxb7 Rh6 Nd2 Rc6 Nb1 Rc5 dxc5 Bh6 Bh3 Bg7 Bf1 Bf8 Kd2 e5 Ke3 Ke7 Ke4 d6 Kd5 e4 f4 g4 h4 g3 c6 g2 c7 a4 f6+ Kd7 h6 a3 h7 e3 h8N a2 f7 e2 f5 e1Q f6 Qb4 h5 Qe7 h6 Qd8 h7 Qe7 Nf3 g1Q Rh4 Qg6 Bg2 Qe2 Nd4 Qc3 Nf5 Qe8 Qh5 Qg5 Bf4 Nc6 b8R Bh6 f8Q Qgg3 b7 Qee1 f7 Qcg7 Na3 Na5 Nb5 Q3g5 Na7 Qeg3 Re1 a1Q Re2 Qc1 Qf3 Qc3 Qg7 Nc6 Bh1 Nd4 f8R+ Qe7 Nf7 Qeg5 h8Q Ne7+ Ke4 d5+ Ke5 Qc5 Nd8 Qc4 Ra8 Qc3 b8Q Ba6 Qb3 Qc5 c8B+ Kc7 Qa2 Kb6 Be6 Bd3 Qb3+ Ka5 Rb8 Qc8 Kd6 Ng6 Be5 Nf4 Rb7 Qc3 Kd7 Qc7+ Ke8 Bc4 Qh5 Ba6 Qc3+ Ka4 Qhg8 Bd3 Qc6+ Ka3 Rb2 Bc4 Re1 Bf1 Re2 Nb3 Qc3 d4 Bc6 d3 Rf6 d2 Qcf3 d1N Rf8 Ng2 Rhe4 Nf2 Rf6 Nd3 Bf7 Nbc5 Ba2 Ne6 Rf8 Nd4 Rf7 Q3h4 Bh2 Qgg3 Rf8 Bd2 Nh6 Qgg5 Qh3 Qgg3 Rff2 Ngf4 Q3g4 Qf6 Qf3 Qfg5
3b1B2/2n2RNN/1R1R2Qq/4pQRn/B2NQ3/1nbK4/B3q1P1/2qk2B1 w - - 0 1 legal: proof: c4 a5 b4 g5 h4 b5 hxg5 d5 cxd5 Ra6 a4 Ra7 axb5 a4 Qb3 Ra8 Qd1 Ra5 bxa5 h5 d6 e5 d4 Qf6 e4 Qd8 f4 Bg4 d7+ Ke7 f5 Be2 Nf3 Bc4 Ng1 Bd5 exd5 Rh6 Bb2 Re6 Bc1 Bg7 d6+ Kf8 fxe6 Bh6 d5 Kg7 Qd4 Kg6 Qd1 Bf8 Ke2 Kf5 a6 Ke4 b6 c5 b7 f5 a7 a3 a8Q c4 e7 h4 e8Q a2 g6 c3 g7 f4 Nf3 c2 Nd4 h3 Be3 c1B Bg1 Na6 b8R h2 Rb6 Qe7 d8R Bd2 d7 Qc5 d6+ Qc6 Qc2+ Kd5 Kd3 f3 Nc3+ Kc5 Ne4+ Kd5 Ng5 f2 Nh7 Be7 Qg6 Nh6 g8B+ Nf7 Rd1 a1N Rf8 Nc7 d8B Nb3 d7 Bc3 Qc8 Bg5 Be7 Qf6 Be2 f1Q d8N Qc6 N8e6 Nh8 Bd6 Bd8 Rf7 Qc5 Be7 Qa3 Ng7 Qc1 Bf8 Qe1 Qg3 Ng6 Qf5 Qh6 Rd2 Qc1 Bd1 Nf4+ Ke3 Kc4 Qgg6 Qb2 Qce4 Nh5+ Ke2 Na1 Ba4 Nb3 Rd6 Kb4 Kd3 Ka3 Rd1 Qbc1 Rf1 Kb2 Rf4 Qe1 Rg4 Kc1 Rg5 Kd1 Bf2 Nb5 Rf1 h1Q Bg1 Nc7 Rf2 Bb4 Rc2 Qf2 Rcc6 Bc3 Rb6 Qb2 Be3 Qe1 Bg1 Qc1 Rfd7 Qf2 Bc4 Qe1 Rf7 Qf2 Be8 Na1 Ba2 Nb3 Ba4 Qe2+
Kn5N/2B1Q3/1P5q/pR1b1R1B/2N1N2N/qR1q3Q/1Rq4b/1q2Q1Bk w - - 0 1 legal: proof: b4 b5 c4 a5 e4 f5 exf5 d5 cxd5 Ra6 g4 Bd7 a4 Bc8 axb5 Qd6 bxa6 Qf6 b5 Qg6 b6 Qd6 f6 Qd8 h4 h5 f4 g5 f7+ Kd7 f5 Nc6 f6 Nd4 Bd3 Nf5 gxf5 g4 Bf1 Rh6 Ne2 Rg6 Ng1 Rg5 hxg5 Bh6 Bd3 Bg7 Bf1 Bf8 Ke2 Kd6 Kd3 Ke5 Kc4 Ke4 Kb5 e5 Kc6 g3 d4 h4 g6 g2 g7 h3 a7 h2 a8Q Bc5 f8Q Qe7 f7 Be6 Kb7 Qe8 d6 c6 f6 Bd5 d7 Ba3 d8N Bc5 Be2 Be6 d5 Be3 d6 c5 d7 c4 Qc8 c3 Bh5 c2 Ka8 Bg5 Qe7 Bf5 f8R Qf7 Ra3 Qb3 f7 Nf6 g8N Be6 Nf3 g1Q Nh4 Qc5 Be3 c1Q Qe1 Qd3 Rb3 Q1c2 Na3 Bf4 Nc4 Qa3 Rb2 Bg3 Bg1+ Kf4 Re8 e4 f8R e3 Nf7 e2 d8B Nd7 Nf6 Nb8 Nh8 Bg8 Qh3 Be6 Q1b4 e1Q Ne4+ Bf7 Qc3 Qea1 Qe1 Qab1 Rg8 Be6 Rg5 Bf7 Rgb5 Be6 Bf2 Bg8 Rg1 h1Q Rf1 Bf7 Rg8 Bh2 Rg3 Bd5+ Qb7 Qhf3 Bc7+ Qd6 Bg1 Qa3 Nf2 Qfd1 Rgb3 Qdd3 Qhe6 Kg3 Q6e3+ Bf3 Ne4+ Kh3 Qh6 Qe6 Qh7 Qh6 Qe7 Bg2 Rff5 Bh1 Qc8 Bf3 N4g6 Kg2 Nh4+ Kh1 Rf6 Bd1 Qh3 Bg4 Rf1 Be6 Rff5 Bd5+
2q1R3/B2nN3/r1q1p2R/Q6n/QQN3r1/R2b4/PpB2KR1/1Nk3BB w - - 0 1 legal: proof: c4 a5 d4 d5 cxd5 h5 e4 f5 exf5 c5 dxc5 b5 g4 e6 gxh5 Kd7 b4 Ke8 bxa5 Bd6 Nc3 Bc7 Nb1 Bb6 axb6 Qd6 Qd4 Qd7 Qd1 Qd8 f4 Kf7 h4 Kf6 b7 g5 d6 g4 d7 b4 h6 g3 c6 g2 h7 b3 c7 b2 h5 Qf8 d8Q+ Qe7 h6 Ra6 Qa4 Ra8 Nf3 g1Q Rh3 Ra7 Nfd2 Bd7 c8B Qg4 Bd3 Ra5 Nc4 Ra6 Bc2 Ra7 Kf2 Bc6 Ra3 Qh5 Be3 Ra8 Qda5 Nd7 b8B Qc5 Bb7 Ra6 Ba7 Bb5 Bh1 Kf7 f6 Nb8 f5 Ke8 f7+ Kd7 f8R Nf6 Re8 Rg8 h8N Qc8 h7 Rg4 Ng6 Qh6 h8R Nh5 Bed4 Qc1 f6 Qc6 f7 Qc8 Nb6+ Kd6 Ne7 Bd3 f8Q Nd7 Bc5+ Ke5 Rh6 Nhf6 Nc4+ Kf4 Qg7 Nh5 Qgc3 Qd1 Qcb4 Qf3+ Ke1 Qfa8 Kf2 Qcc6 Nbd2 Qac8 Rg1 Q6a8 Rg2 Qac6 Nb1 Ke4 Kg1 Kf3 Bf2 Ke2 Bb3 Bc2 Bfd4+ Kd1 Kf1 Q6c7 Bg1 Kc1 Kf2 Bd3 Bc2 Qc6
Rr2qBn1/1BBn3k/1N1bR3/1N1qP3/R3r3/1bQQBN1K/1R3bQ1/6n1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Na6 cxd3 Bc5 d4 Bf8 d5 Nb8 e6 c5 Kf2 g5 Kg2 f5 h4 f4 d4 g4 e4 g3 a6 f3+ Kh3 f2 a7 c4 b6 c3 b7 g2 h6 c2 d6 Rh7 h5 Rc7 h7 Rc5 h8R Be7 d7+ Kf8 h6 Rb5 h7 Kg7 d5 Qf8 d8Q Ba3 d6 Rd5 d7 Qf7 e7 Na6 b8B Qg6 e8R Be7 Bd6 Ra5 Nc3 Nf6 Nb5 Nc7 Qd2 Ne6 Rh2 Ra4 Qg5 Bb7 Be3 c1N e5 Rg4 Ra4 Nf8 Qc8 Bf3 d8Q Bd5 Qc3 Rd4 Be2 f1Q Bf3 Qd3 Bc7 Bb3 Bb7 Re4 Nf3 g1B Rb2 Bf2 Qg2 Ne2 Qdd4 Bb4 Re6 N8d7 Qd6 Qc4 Qdd3 Qd5 Rb8 Bd6 h8B+ Kh7 Bg7 Qe8 Bf8 Ng8 Rd8 Rb8 a8N Rc8 Nb6 Rb8 Bc6 Rb7 Rda8 Rb8 Bb7 Ng1+
3nN1Rb/B4q1P/r1Q2NNr/rq6/QrN1R3/KBR5/3B1R1n/Q2b2k1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 d4 Kd7 Kd2 Kd6 Kc3 e5 Kb2 g5 f4 c5 h4 e4 a6 g4 h6 c4 h5 e3 b6 c3+ Ka3 e2 h7 e1R f6 g3 a7 c2 f5 g2 h6 Re2 f7 Ba6 b7 Re1 f6 Re6 Ne2 g1R Bd2 Rg4 Nf4 Qb6 Rh4 Re1 Ng6 Qd8 Bc4 Reg1 Bb3 R4g3 Re4 Be7 f8N R1g2 f7 Qe8 Nd7 Nf6 f8R Ng4 Nf6 Rg8 h8Q Bb5 h7 Nc6 b8N Bd3 Na6 Rh3 Nc7 Qf7 Rc8 Bf1 Ra2 c1Q+ Rb2 Rb8 a8Q Rb4 Qf3 Bf8 Qa4 Qc5 Rc2 Be7 Rf8 Rh4 Rc3 Qb5 Nh5 Rg3 Ne5 Rh2 Ree3 Na5 Rc2 Be2 Be1 Qc5 Nd2 Bf6 Ndc4+ Ke7 Bd2 Nc6 Ne8 Qg6 d6+ Ke6 d7 Bd1 d8B Qg7 Qg2 Kf5 d5 Qd7 d6 Rg5 Rg8 Qf7 Bb6 Rh4 Qg7 Nh2 Ba7 Rg6 Rc1 R3g5 Rf3+ Ke4 d7 Qcd5 d8R Qa5 Rd7 Nd8 Re7 Qad5 Qh8 Bg7 Qh1 Ra6 Ng6+ Be5 Rf5+ Kd3 Qg7 Ke2 Rf1 Qb7 Qc6 Qb8 Rf6 Rf5 Ree6 Kf1 Qh8 Bd4 Re4 Kg1 Rc2 Rfa5 Rf2 Qb5 Qg7 Bb6 Qa1 Bd4 Rc3 Bh8 Nhf6 Rh6
3rq2n/N2Pn1q1/3Q4/2rRbBB1/KN3q1N/1Q1B2RR/4nN2/2QB1kr1 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 f6 c5 g7 e5 f7 c4+ Ka4 e4 b4 e3 b7 e2 g6 e1R b5 h4 g5 c3 b6 c2 Rh3 Ra7 Na3 Qc7 Bd3 Nh6 g8R Re5 g7 Re2 g6 Nd7 b8Q Re7 b7 Nf5 Bg5 c1N Nc2 Ra6 Nb4 Ne2 Qc1 Re5 Qd8 Be7 f8N Bf6 b8Q Ne7 Ra2 Rc6 Rd2 Rc5 Qb5 Re3 Qbc4 Be5 Qb3 Rf3 Bf5 Rf1 Rdd3 Rh5 Rdg3 Rd1 Rh8 Rh7 g8B Rg7 Bh7 Rg8 g7 Rf1 Rh2 h3 Ng6 Qc8 Rf2 h2 Nh3 h1Q Nh4 Qf3 Rfg2 Re8 g8B Rg1 Nf2 Qf4 Rh3 Qa8 Rgg3 Qb8 Bge6 Rg8 Qf8 Qe8 Qf6 Rf8 Bc2 Rg8 Bhd3 Rf8 Rh6 Rg8 Bd1 Nf8+ Bb5 Rh8 Rh5 Nfg6 Qf8 Rg8 Bf5 Nh8 Qh6+ Qg6 Bbd3 Rd8 Ka3 a4 Qf8 Kc7 d6+ Kb6 d5 Qe8 d7 Ka5 d6 Kb6 Ka2 a3 Qh6 Rc4 Qe6 Kc5 Qh6 Kd4 Qg6 Rb8 d8N Rc5 d7 Rbc8 Nb7 Rd8 Nd6 Rf1 Nc8 Rg1 Ka1 a2 Kb2 Ng8 Ka3 Ne7 Na7 a1Q+ Qa2 Qb2+ Ka4 Qc3 Qcb1 Qa1 Qd6+ Kc3 Qa3+ Kd2 Qb3 Qd4 Qc1+ Ke1 Rh6 Kf1 Re6 Bf6 Re5 Bg7 Rd5 Qf6 Qe5 Qfg6 Qb8 Be5 Qd6 Qg7
5k2/2n3Rb/rQNqR2K/2b1N2Q/RnQ4P/6Qb/1bB1N1qB/3R1bB1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 fxe5 Be7 c4 Ba3 cxd5 Bf8 Qa4 h5 Qb3 a5 Qd1 Ra6 g3 Rah6 hxg5 h4 Qc2 h3 Qd1 Rh4 gxh4 Be6 Bg2 Bf5 Bf1 Bc8 Kf2 c5 Kf3 f5 Kf4 a4 e4 h2 d4 c4 b4 a3 e6 a2 e7 c3 d6 c2 e5 Qc7 d7+ Kf7 d8Q Bg7 e8R Qc4 e6+ Kg6 b6 Bf8 b7 Kg7 e7 Na6 b8Q Bd7 b5 Qb3 d5 Qc4+ Qd4+ Nf6 b6 Qa4 g6 Be6 Kg5 f4 b7 f3 d6 f2 d7 Bg4 Q8b6 Be6 d8N Bg4 Qc4 Bf3 Ne2 Qb3 Na3 Nd5 Be3 c1B Qg3 Nac7 b8B Nb4 Nc6 Qd1 Bh3 f1B Bf5 Bh5 Bc2 Bb2 Bg1 Qd6 Rd1 a1Q Rd4 Qe6 Rd1 Kg8 g7 Rh6 Rd4 Kf7 g8R Bg6 Rg4 Bh7 Re4 Rg6+ Kh5 Qa2 Rg7+ Kf6 Rd4 Qd6 Rg4 Rg5+ Kh6 Ra5 Rd4 Ra6 Rd1 Ncd5 Bc7 Ke6 Ra8 Kf6 e8Q Be7 Bb8 Nc7 Qh5 Bf8 Qcc5 Qad5 Nc4 Qg2 N4e5 Be7 Ng6 Ke6 Qc4+ Kd7 Re1 Ke8 Rd1 Qd7 Nge5+ Kf8 Rd6 Qd8 Re6 Bc5 Be3 Qd6 Rg1 Ra3 Ra4 h1B Bf2 Qf3 Be3 Bhg2 Rh1 Bh3 Rg1 Bfg2 Rd1 Bf1 Bg1 Qg2 Qgg5 Ne8 Ng4 Be4 Ra5 Qd5 Bbh2 Nc7 Nge5 Bh7 Qg3 Qd6 Ra7 Rc3 Raa1 Ra3 Ra2 Ra5 Ra4 Ra6
4R1b1/4N2N/3q1n2/1qbN1Rr1/BBQQP1QK/q3qRB1/1N3Rqn/7k w - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 gxf5 g5 h4 d5 cxd5 e5 fxe5 g4 a4 Ra6 axb5 Rh6 Rh2 Rh5 Rh1 Rg5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kd7 Kg3 c5 e4 h5 d4 a4 b4 a3 d6 c4 g6 c3 b6 Kc6 b5+ Kb7 g7 c2 f6 a2 d5 Qd7 e6 Qd8 f7 Be7 f8N Rh6 d7 Bg5 e7 Rg6 e8R Re6 d6 Qe7 d8Q Be3 d7 Qd6+ Kh4 g3 Bd2 c1Q Qg4 g2 Nh3 g1Q Nh7 Qg2 Nc3 Rg6 Na4 Nf6 g8Q Bc5 Qc4 Nc6 Nf4 Rg5 Rh3 Nd4 Bb4 Qe3 Rf3 Qb2 Rc1 a1Q Nd5 Qaa3 Rc2 Qbb3 Nb2 Qbd3 Kh3 h4 Rf2 Kb8 b7 Qb1 Rg3 Nf3 Qb6 Qbd3 d8N Nh2 Rgf3 Be6 Be2 Qb1 Bd1 Bg8 Ba4 Qbd3 Re5 Qb1 Rf5 Qbd3 Nf4 Qde2 Qa7+ Kc7 Nc6 Kd7 Nd5 Ke6 Nce7 Q2d3 Rf4+ Ke5 b8B Qb1 b6 Qbd3 Kg2 h3+ Kg3 Qde2 b7 Q2d3 Qc1 Qde2 Bc7 Qb5 b8R Kd4 Kh4 Ke5 Nd1 Kd4 Re8 Kd3 Rf1 Ke2 Qc4+ Qad3 Bca5 Qbd7 Be1 Bb4 Bg3 Qb5 Qad4 Bc5 Qc1 Qdb3 Rf5 Qa3 Rh1 Nf1 Nb2 h2 Rg1 h1Q+ Bh2 Qg2 Bg3 Nh2 Bb4 Qf1 Qcc3 Qff2 Rg2 Kf1 R3f4 Qff3 Rf2+ Kg1 Qcc4 Qg2 R4f3 Kh1
2K1n3/r3N1Q1/BQ1q1R2/1P2r2R/3q1R2/NBrnB2Q/4QNq1/k1q2q1N w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 h5 b4 c5 d4 a5 b6 e5 Kb5 e4 b7 g2 g5 e3 g6 h4 f7 e2 f8Q+ Qe7 Kb6 e1Q g7 h3 f6 a4 f5 c4 f7 c3 f6 h2 Ne2 g1R Be3 a3 Ng3 c2 Ba6 c1Q b5 a2 Qe2 Rh5 Qc8 Qcc3 f8Q Ra7 f7 Rh8 Qh3 Rh4 Na3 Nc6 b8N Qed2 Nd7 Rh7 Nc5 Rh6 Nd3 Rh5 Rf1 a1Q Rf4 Rh6 Nf2 Nf6 g8B Qdb2 Qg7 Qf1 f8R Ne8 R8f6+ Qe6 Bf7 Qbc1 Bg8 Nb4 Bf7 Ra8 Kb7 Rh5 Bg8 Nd3 Bf7 Kd7 d6 Re5 d5 Ra7+ Kb8 Qd4 Bg8+ Kd8 d7 Qec6 Bf7 Ke7 d8N Qg2 Be6+ Kd6 Bf7+ Kc5 d6 Kb4 d7 Kc3 Bb3 Qcc5 Nc6 Qcd6+ Kc8 Rf1 d8Q Rg1 Qf3 Kb2 Qe2+ Ka1 Qdc7 Rd1 Ne7 Rd2 Qc6 Rc2 Qc5 Rc3 Qc6 Nc5 Qb6 Qcf1 Rg1 Qc1 Ngh1 Qgf1 Rg5 Qg2 Ng3 h1Q Rh5 Qhf1 Ngh1 Nd3+
K1Q1rk1B/n2B4/qbpn1n1R/1B1NNPB1/2Q5/1R4rR/4rQ1b/RN6 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 h5 Ke3 e5 Ke4 a5 d4 a4 b4 h4 d6 h3 Kd5 a3 b7 h2 g7 a2 b5 e4 b6 e3 d7+ Kf7 g6+ Ke7 g5 e2 Qc2 e1B Nf3 Bc3 Bb2 Nc6 b8R Be1 b7 Ra7 Ne5 Rh4 Qf2 Re4 Bb5 Nh6 g8Q Nf7 g7 Re3 g6 Qe8 d8R Ra5 Rd6 Bd2 Kc5 Rb3 d5 Nfd8 Rf6 Qf7 d6+ Ke8 Bc3 Ra8 Bb2 Qd7 Qc4 Qc8 g8B Rg3 g7 Ba5 Be6 Nf7 g8N Bb6+ Kd5 Bg7 d7+ Kf8 d8B Na7 Rh6 Nd6 Bed7 Bh8 Ne7 c6+ Ke6 Bf6 Nd5 Bg5 Bc3 Bge3 Bg5 Bf4 Re1 h1R Re3 Re1 Rf3 Re2 Re3 Rg1 Reh3 Bh2 Bb2 Rg3 Bd4 Ne4 Bb2 Nf6 Kd6 Qe8 Rc8 Qd8 b8Q Qe8 Rc7 Qc8 Qb7 Rb8 Qa8 Qa6 Rb7 Re8 Qc8 Bd4 Kc7 Bb6+ Kb8 Bd8 Nbc3 Bb6 Rd1 a1N Nb1 Nb3 Ka8 Na5 Nf3 Rd2 Na3 Ng8 Ra1 Be3 Ba4 Bd4 Nb1 Re2 Rb3 Nb7 Bb5 Bb6 Bh8 Nd6 Ne5 Nf6
b1R3N1/1b5P/7R/N1BBbN1p/5r1n/2Rr1q1B/nkn1QQQB/R3K3 w - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 h5 a4 d5 axb5 e5 cxd5 e4 g4 e3 g6 Ne7 g5 Qd6 fxe3 Qb6 e4 Ng8 e5 Qf6 Bg2 Qg7 Bf1 Qh6 gxh6 Kd8 Ra6 Ke7 Ra1 Ke8 Rh3 Kd7 e4 f5 b4 a5 d4 c5 h7 f4 g7 c4 e6+ Kd6 e7 f3 e8R a4 e5+ Kc7 e6 Kb6 d6 a3 d5 a2 d7 c3 d8Q+ Kb7 e7 c2 d6 Be6 d7 Nc6 b6 Bf5 b5 Bg6 Na3 Nb4 Rb1 a1Q Be3 c1N Nc4 Ra3 Ne2 Ra7 Nd4 Qa3 Ra1 Nf6 g8B Bf7 Nf5 Ne4 Rg3 Nd2 Bh3 Ra5 Bg1 Bd5 Bc5 Qc3 Be6 Qa3 Rg6 Ra4 Rh6 Ne4 Qc2 Bg7 Qg2 Ng5 Rg8 Nca2 e8N Nf7 Qe7 Ne5 Bf7 Ng6 Be6 Nh4 Na5+ Kb8 d8B Ba8 b7 Bf6 Rg3 f2+ Kd2 f1B Ke1 Bb2 Nf6 Rg8 Re3 Rg3 Ng8 Qb3 Qf2 Bg2 Rd3 Bc6 Bd5 Rf3 Qg5 Bg7 Bde7 Kc7 b8Q+ Kd7 Qe5 Nc2+ Kd2 Rd4 Qee2 Kc7 Bcd6+ Kb6 Bh2 Rf4 Qgg2 Be5 Bf8 Bd6 Kd1 Kc5 b6 Kb4 b7 Ka3 b8R Bcb7 Rc8 Kb2 Kd2 Be5 Bc5 Rde4 Kd1 Re3 Kd2 Qb4+ Kd1 Qe4 Kd2 Qf3 Ra3 Nd4 Rc3 Rd3+ Ke1+ Nc2+
2R1NQK1/R1b1Q3/7R/1P1n3n/Bb1rN2p/2Q1n3/1BN1kBq1/RQ3rn1 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 b4 h5 g7 e6 f6 a4 b7 a3 g6 a2 g5 c6 f7 Nd7 b8Q+ Qc7 Qf3 Ne5 Qc3 Nf6 g8N Bh6 f8Q+ Kd7 d6 Rh7 g7 Ng6 Nh3 Qc8 Nf2 Ra4 Ne4 Nd5 Bb5 Ngf4 Ke5 Qb7 d4 h4 g6 Nh5 Na3 Bg5 Bb2 Bd8 Nc2 Bc7 Rhf1 Rh6 Rf6 Qa8 Bd3 c5 Bb5+ Qc6 Qb7 c4 Qb6 Ra8 Ba4 Rd8 b5 Qa8 Qba5 Rh8 Qe1 c3 Qb1 Kc8 Rf7 Kb7 Ngf6 Rg8 Qe7 Rgf8 g8Q Rd7 Qb4 Kb6 Ne8 Qc6 Rh7 Rf1 g7 Qb7 Qgf8 Qa8 Na3 c2 g8R c1N Nc2 Ne2 Rgg7 Ng1 Rh6 Qc6 Na3 Qc2 Qc3 Qg2 Rf7 Nb4 d5 Rd8 Kd4 e5+ Kc4 Rd7 Nc2 Rd8 d7+ Ka5 Nd2 e4 d6 e3 Ne4 e2 Kd4 e1B Ke5 Kb6 Ke6 Nd5 Rfh7 Nhf4+ Kf7 Nh5+ Qcf6 Bd2 Rg7 Bb4 Kg8 Ra8 d8B Ra7 Ng5 Kc5 d7+ Kc4 Ne4 Kd3 Qd4+ Ke2 Qc3 Bcd6 Ba5 Bc7 d8R Ra6 Rc8 Rd6 Bb6 Rd7 Bf2 Rd6 Ba3 Rd8 Qbb3 Rd6 Bb2 Rd8 Rd1 a1N Qa2 Rd7 Qb1 Bd8 Qc1 Qg5 Qd6 Ndf4 Na3 Nc2 Qdc7 Ne3 Nc2 Rd4 Qcd6 Qe5 Ra7 Nfd5 Qde7 Bc7 Qa1 Qh2 Qa2 Ng2 Ra1 Nge3 Qb1 Qg2+
1b1n2R1/1QrBk2K/R4qQ1/1rnPNq2/2R1N3/NN2B1nQ/p2Q2q1/2B5 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 e5 Ke3 c5 Ke4 a5 d4 h5 b4 c4 d6 h4 b5 c3 f6 a4 Kf5 h3 b7 a3 d5 e4 b6 h2 g7 e3 Kg6 e2 f7+ Kd7 Nf3 e1Q Nd4 c2 Qd2 Qg3 Bb5+ Nc6 b8B Rh7 b7 Rh3 Nb3 Ra5 Ba7 Qc3 b8Q Rh5 Be3 Ra6 Qb7+ Qc7 Rf1 h1N Rf4 Qb4 Rc4 Be7 f8Q Bd8 Qf3 Rh4 Qh3 Nf6 g8N Ra7 Kg7 Rh6 g6 Ng3 Ba4 Rh4 g5+ Rg4 Bb5 Nfe4 Kh7 Nc5 g7 Qc3 g6 Qf6 Ba4 Be7 Ra2 Kd8 d7 Qce5 Ra1 Qff5 Nf6 Bd6 g8R+ Ke7 Ne4 Qef6 d8N+ Bc7 Nf7 Nd8 Bd7 Bb8 Ne5 a2 Na3 Ra5 Rb1 Rb5 Rb2 Qf1 g7 Qg2 Rh8 Rg6 g8Q Qf5 Rb1 Rc6+ Qg6 Rc7 Rg8 Qf6 Na5 Qf5 Rbb4 Qf6 Nb3 Qf5 Ra4 Qf6 Bb2 c1Q Ra6 Qcf1 Bc1 Q1f5
Q3BB1K/1qR2N1Q/1Q1P3B/nRb1N1bn/kB6/5q2/p2n1rR1/b4NN1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 e4 b3 exf5 a6 f6 Nd7 f5 Nb6 f7+ Kd7 f6 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 h3 a5 Ke2 Ra6 Ke1 Rc6 Qa4 Rc3 Qc2 Rf3 Qd1 Rf5 gxf5 Ba6 Qg4 Bb7 Qd1 Bc8 b6 g5 Be2 g4 Bd3 g3 Bf1 Ba6 Nf3 Be2 Ng1 Bg4 hxg4 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 h5 Kd3 c5 Ke4 e5 b4 g2 d4 a4 g5 a3 d6 Kc6 b7 a2 d7 h4 b5+ Kb6 d5 Ka5 g6 h3 g7 c4 b6 c3 Qc2 h2 Bb5 Ba3 f8Q Na6 b8N Bd6 b7 Qe8 d8N Ba3 f7 Be7 f6 Nc7 Kf5 e4 Kg6 e3 Nd2 e2 Nf1 e1N Rb1 Na8 Nd7 Nf3 b8Q Nb6 Bh6 Nc4 Ne5 Qd7 Bc6 Qc7 Be8 Bc5 Rb6 Nfd2 Rb5+ Ka6 Qd3 c2 Qd6+ Qb6 f8B c1B f7 Nf6 g8R Na5 Kg7 Bb2 Qc2 Ba1 Qh7 Be3 Qe6 Bg5 Bb4 Qc6 d6 Qb7 Qb3 Qf3 f8B Nh5+ Kg6 Qb7 Rg7 Qf3 Rc7 Qb7 Ndf7 Qf3 Ne2 g1B Qa8+ Ba7 Rg1 h1Q Rg2 Rg8+ Bfg7 Rf8 Ng1 Qb7 Nd8 Rf7 Bf8 Rf2 Ndf7 Qf3 Qg8 Qb7 Kh7 Qh3 Kh8 Qhf3 Rd5 Kb6 Qh7 Ka6 Qd8 Bc5 Qa8+ Kb6 Qb2 Qc6 Qb3 Kb5 Qbb1 Ka4 Qb2 Ba7 Rb5 Qb7 Qd4 Bb6 Qc5 Ba7 Qc6 Bae3 Qb6 Bc5
1RB1n2r/qBQ1B3/PN4k1/bQ4NN/1n2Np2/R1b4Q/q1q3R1/1n3KR1 w - - 0 1 legal: proof: c4 a5 g4 e5 b4 d5 bxa5 g5 cxd5 b5 f4 f5 fxe5 f4 h3 Bf5 gxf5 g4 Na3 g3 Nb1 Ra6 Na3 Rg6 Nb1 Rg4 hxg4 Bh6 Rh3 Bg7 Rh1 Bf8 e4 Kf7 a4 c5 d4 h5 d6 h4 f6 g2 g5 b4 d5 c4 e6+ Kg6 e7 h3 e8Q+ Kh7 e5 h2 a6 b3 a7 c3 a8B b2 a5 c2 e6 Nh6 a6 Qd7 g6+ Kg8 f7+ Kg7 e7 Nf5 Qh5 Nc6 Bb7 Qd8 d7 Qa5+ Nc3 b1N d8R Qa2 d6 Ncd4 d7 Ne2 Ne4 Nd2 Nf3 g1Q Qh3 Qg2 Rb8 Qe6 d8Q Ned4 Ra3 Rh4 Qb5 Nd6 e8N+ Kh6 g7 Qa2 g8R Bg7 f8N Nb1 Nd7 Nc6 Nb6 Nb4 Rg1 h1Q Nfg5 Kg6 N8f6 Ne8 Qc7 Rh8 Nh5 Qhh2 Bb2 c1B Bf6 Qgc2 Be7 Qc5 Bd3 Qhc2 Kf1 Bd2 Be2 Be1 Bg4 Bc3 Bgc8 Qd4 Nc4 Qa7 Nb6 Be1 Rf8 Ba1 Rf5 Bf6 Rd5 Bfc3 Rd2 Nd5 Rdg2 Ba5 Qbd3 Nb4 Qb5 Bc3
1Q3Q1R/2rBN1Q1/1Bb2RB1/2rq4/p2bbr2/1R1N2R1/P1r1QN2/k4n1K w - - 0 1 legal: proof: f4 c5 e4 d5 g4 g5 c4 f5 cxd5 c4 h4 c3 b4 c2 h5 Nd7 h6 Nc5 bxc5 Kd7 exf5 Ke8 fxg5 Be6 g6 Bc8 Ba3 c1Q g5 Qc3 Bc1 Qg7 hxg7 Qb6 Qh5 Qa5 Qd1 Qd8 Kf2 Kd7 Kg2 h5 d4 b5 f6 a5 f7 e5 c6+ Kd6 c7 e4 Nc3 a4 Bd3 b4 Nh3 h4 Ne2 b3 Rb1 b2 Nef4 e3 Qe2 Nh6 g8R Ng4 g7 Rh5 g6 Ra5 Nf2 Bb7 c8B Rc5 Rf1 h3+ Kh1 h2 Bd7 Rh3 Be4 Rg3 N4d3 Rf3 Bd2 Bc6 Ba5 Be7 Bb6 Bf6 Rh8 Rc2 g8Q Qa8 g7 Qb7 Rbe1 b1R Bg6 Rb5 Rb1 Rbc5 Rb3 Qa8 Qh7 Qb7 g8R Qa8 Qd2 e2 Qg7 e1R f8Q+ Re7 Qe2 Qa5 Rg1 Ne3 Rg3 Nf1 Rh6 Qb4 Rgh8 Qd2 Ba7 Kc7 Bb6+ Kb7 d6 Ka6 d5 Bd4 Bge8 Qg5 Rf6 Qe5 Bg6 Rf7 Be6 Rc7 d7 Qh5 d6 Qd5 Ra3 Kb5 d8N Kc4 d7 Nd2 Rb3 Nf1 Rb5 Kc3 Bef5 Ba8 Nc6 Bb7 Ne7 Bc6 Nb4 Kb2 d8Q Ka1 Qb8 Qe4 Nbd3 Qd5 Kg2 h1B+ Kg1 Rf4 Rb3 Be4 Bd7 Rf3 Kh1 Rf4+
r2bb1Q1/1pB4R/3Qn1r1/1K3B2/P3Nq2/r2Rb1B1/2Bb1N2/kN1NQR2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 Be6 h4 Nf6 g4 Qd7 h5 Ng8 g6 Nc6 g5 Ne5 g7 Ng6 hxg6 Qd8 Rh5 Bd7 Rh1 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 a4 c5 d4+ Ke4 a6 e5 f6 h5 d6 h4 f7 h3 d5 h2 d7 Ra7 d6 Qc7 d8R Rh5 d7 Rh6 Nh3 Qb6 Bf4 Qd6 Kb5 c4 Bd3+ Kd4 Nf2 e4 Qe1 e3 Bc2 c3 Bg3 Ne7 g8N e2 g7 Nd5 g6 Qf4 Nf6 Be7 g8B Ra8 g7 Rg6 N6e4 Bg5 Rf1 h1R f8Q Rh3 a7 Bh4 Bh7 Nc7+ Ka5 Bg5 g8Q Ne6 Qd6+ Kc4 Ra3 Bh4 Re8 Bf6 d8B Bg5 Qc1 e1B Bc7 Bd2 Qe1 Bd8 Re7 Bd7 Rg7 Be8 Kb6 Bf7 Rb3 Rf6 Bf5 Rfh6 Rh7 Rg6 Bd1 c2 Rd3 c1B Bc2 Rc8 a8N Be3+ Ka5 Rb8 Bb6 Rc8 Nc7 Bcd2+ Nec3 Rb8 Na6 Ra8 Bc7 Nd4 Kb6 Ne6+ Nc5 Kb4 Rg7 Kc4 Ncd1 Kb4 Nbc3 Ka3 Nb1+ Ka2 Kb5 Ka1 Nce4 Bd4 Bh4 Bb6 Rh7 Rf3 Rd4 Ra3 Rd3 Bbe3 Bg3 Be8+
1q1Q1N1Q/1R2n1NB/3RqN2/1K3q2/1BRQ3q/4QP1r/BR4pb/kbn5 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 d5 exf5 b5 a4 d4 axb5 d3 cxd3 a4 d4 Nf6 d5 Ra5 bxa5 Ng8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 g5 d4+ Ke4 b6 e5 d6 c5 b7 g4 h6 g3 d7 a3 a6 a2 d5 g2 h7 Ne7 d6 Qe8 d8Q Qg6 h5 Rg8 h8Q Qg5 d7 Qh6 f6 Qd2 a7 Qe3 a8B Nbc6 b8R Rg7 f7 Bb7 h6 Na5+ Kb5 c4 h7 c3 Nh3 c2 Qf3+ Kd4 Nf4 e4 Rh4 Bd5 Bd3 Nb3 Ba3 c1Q Nh5 Qc8 Rb7 Qb8 Nd2 Kc3 Rb1 a1Q Rb2 Qb1 Bd6 Qf4 Qe3 Nc1 f3 Ba2 Bc5 Qf6 Rg4 Rg5 Ng7 Qe6 Rh4 Rg3 Rf4 Ng8 Bd6 Be7 f8N Rh3 Bc5 Qc2 Ba3 Bb1 Bc4+ Nd3 Ba2 Bd6 Qf6+ Be5 d8Q Qg4 Qe1 e3 Rbb4 Qc1 Ne4+ Kc2 Qfb6 e2 Rbf7 Nh6 Qg8 Qb7 h8R Nf5 Rh6 Qc8 Rd6 Qe3 Qh8 Nc1 Nf6 Qb8 Rfd7 Ne7 Rfc4+ Qc3 Bd5 Qe6 Rb7 Bh2 Qeh4 e1Q Qe3 Qg3 Qhd4 Qh4 Rb3 Bg1 Bb4 Bh2 Ra3 Kb2 Be4 Ka1 Rb3 Qb2 Bh7 Qc3 Rb2 Qc2 Qde4 Qd3 Q4d4 Qdf5+
2Q3N1/3q1k2/qBrr1nnB/1K1n3R/N2q1BR1/2NB1p2/P3Q1QR/2q1Q3 w - - 0 1 legal: proof: c4 e5 b4 a5 bxa5 d5 cxd5 g5 f4 f5 g3 g4 fxe5 f4 h3 f3 Bb2 Bh6 Bc1 Bf4 gxf4 g3 Qc2 Nh6 Qd1 Bg4 hxg4 Ng8 d4 c5 Kd2 b5 Kc3 h5 e4 b4+ Kc4 h4 d6 h3 a6 g2 e6 h2 e5 b3 g5 b2 e7 Nh6 a7 Nf7 d5 Qa5 g6 Qd8 g7 Nh6 g8N Kf7 e8R Qc7 e6+ Kg6 d7 Qc6 d8Q Nf5 e7 Qd6 Ne2 g1Q Kb5 c4 Nbc3 b1N Na4 c3 Qe1 c2 Nec3 Qe5 Qc8 Nh6 f5+ Kg7 f6+ Kg6 f7 Qf6 f8B Nf7 d6 Qgd4 d7 Ne5 d8B Kf7 Bf4 c1Q B8h6 Nbd7 Bb6 Ng6 Bd3 Qg7 Rd8 Nf6 Rd5 Rh7 Rg1 h1Q Rg4 Qf1 Rh5 Rb8 a8Q Qd7+ Qcc6 Rd8 Qc8 Qd4 Qce4 Rd6 Q4e2 Rc6 Qg2 Qd7 Bhg5 Rh6 Rh2 Nh5 Qee2 Qgd4 Qe1 Nf6 e8Q+ Kg7 Q8e2 Kf7 Ne7 Nd2 Rb1 Nde4 Ng8 Nd5 Rb4 Nef6 Rb2 Rh5 Bh6 Re5 Rb4 Ree6 Rc4 Red6 Rc5 Nde7 Rch5 Ned5 Q1f2 Qfd1 Qh4 Qa3 Qhe1 Qdc1 Nb2 Qaa7 Nba4 Qa6+
6R1/Q1N1r2n/B1P3RQ/2K2n2/2B1rQ1p/N4Bqb/Q1NBR1pb/1b4k1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 dxc5 g4 f4 g3 h4 Ba6 e4 Ra7 e5 Qc8 b6 Rb7 f6 Qc6 f5 Kd8 f7 Qf6 exf6 Rc7 Ra2 Bc8 Ra1 Rc6 Qg4 Rd6 Qd1 Rd4 Ke2 Rg4 Ke1 Rg5 hxg5 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 h5 Kd3 d5 Kd4 Kd7 b4 Kc6 c4 g2 g6 e6 b7 a4 b5+ Kd7 b6 Kc6 g7 a3 Ne2 a2 Bd2 h4 Na3 Ne7 g8B Bd7 Qc2 Bg7 f8Q Bh6 f7 Ng6 f6 Bf4 Qh6 Rh7 f8Q Bh2 f7 Ne7 Rb1 a1R Qa2 Rg7 Rb3 Rh7 Rg3 Re1 Rg6 Bc8 Rg1 Nd7 b8R Nf6 b7 Rg7 Ra8 Nh7 b8Q Bd7 Qa7 Nf5+ Kc3 d4+ Kb4 d3 Qfb8 Bd6 f8N e5 Ne6 e4 Nc7 e3 Qf8 Re7 Qf4 Ng3 Q8h6 Bh3 Re8 Nf5 Bd5+ Kd7 Nd4 e2 Reg8 Be5 Qf2 Bh2 Bf3 Re4 c6+ Ke7 Nce6+ Kd6 c7 Ke5 c8B Nd6 c5 Nf5 Bc3 d2 c6 d1B Kc5 Bc2 Nc7 Bd3 Ba6 Bb1 Qh5 Kf4 Qh6+ Ng5 Qg3+ Ke3 Qf4+ Kf2 Bd2 Nh7 Rh1 Rc1+ Ndc2 e1Q Bfc4 Rd1 Bc3 Rd7 Bd2 Rde7 Rg1 Qf1 Rh1 Qd3 Re1 Qc3 Re2+ Kg1 Bc1 Qe1 Bd2 Qg3
1q6/2Nr1B2/R1p1QB1B/Q1R1NRn1/rNb4K/3n1n2/4PN1p/k1b2RQ1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 Kf2 Ke7 Kg3 f5 d4 h5 e6 Kd6 e7 c6 e8R f4+ Kh4 f3 g4 f2 a6 Ra7 b6 Qf6 b7 Bh6 Nf3 Bd7 Bg2 f1N Nbd2 Bf8 Ne5 Bh6 Ne4+ Kc7 d6+ Kb6 d5 Kb5 Rf8 Kb4 Nf2 Qf5 g6 Kc3 g5 Ra8 g7 Qf7 g6 Qe6 a7 Nh2 Rf1 Bd2 Rf5 Be1 Ra6 Be8 d7 Qf7 d8B Bd2 d6 Qc7 d7 Nh6 g8Q Bf7 g7 Bc4 Bd5 Rh7 Qe6 Nf7 g8R Ng5 Bf6 Bf4 d8N Nd7 b8N Nc5 Bd2+ Kb2 Qe1 Nh3 Rgg5 Rd7 Qd1 Qd6 Bc1+ Kb1 Qd4 Bd2 Qg4 Qc7 Qg1 Nd3 Ra2 Qc8 Rg3 Qc7 Qe8 Rf7 Ne6 Rd7 Na6 Qb8 Nb4 Nb2 Nc7 Ba6 Rc3 Nf3+ Kg3 Nd3 Rc5 Bc4 Bf7 h4+ Kg4 Be3 Qe6 Bg5 Raa5 Bd2 Rab5 Ka1 Rb6 Bc3 Kh5 Bb2 Bh6+ Bc1 Kg4 Nhg5 Kh5 h3 Kg4 Qb7 Kh5 Rc8 a8Q+ Qa7 Kg4 h2 Kg3 Qa5 Qa6 Ra8 Qb5 Qa7 Kg4 Nd4 Kh4 Qb8 Qa6+ Kb1 Qb5 Ra4 Qa5 Ka1 Ra6 Ndf3+
1rQB2rK/2RQpb2/2R1Bp1k/1Q1N4/q2NNn2/B1n4N/3QP2b/1R3b2 w - - 0 1 legal: proof: g4 b5 c4 g5 b4 d5 cxd5 a5 bxa5 b4 a4 b3 h4 b2 hxg5 Bg7 f4 Kd7 f5 Qf8 g6 Qe8 g5 Bf8 g7 Kd8 Na3 Qb5 axb5 b1Q Rh6 Qe4 Nb1 Qe6 Rh1 Qg6 fxg6 Ke8 Kf2 c5 Ke3 h5 Kf4 h4 d4 f6 b6 c4 d6 h3 a6 h2 a7 c3 b7 c2 d7+ Kd8 Kf5 Rh5 d5 Rh3 Nc3 Rh8 Nh3 Rh7 Rb1 Na6 b8N Nc7 Qd2 Rh8 Ba3 c1Q Ne4 Ne6 Nc6+ Kc7 d8B+ Kd7 d6 Ke8 Nd4 Rb8 a8N Qe1 Nc7+ Kd7 Nd5 Ke8 Bg2 Qg3 Rhc1 h1B Rc7 Qb3 Bf3 Ba6 Bg4 Nf4 Rc6 Ng2 Ke6 Nh6 g8R Qb5 g7 Nf5 g6 Nfe3 Rc7 Nd1 Bf5 Rh5 Rh8 Nc3 g8Q Qb3 g7 Bc4 Qh7 Rh6 g8Q Rg6 Qh5 Qa4 Bg4 Bb3 Kf5 Ba2 Qe6 Bb3 Qc8 Kf7 d7 Bh6 Re8 Kg7 Ke6 Kh7 Kf7 Nf4 Be6 Rg3 Qe5 Bg5 Rc6 Kh6 Kg8 Bg2 Kh8 Bf1 Rf8 Rb6 Qeb8 Rb4 Qb5 Rg2 Rg8 Bh4 Rg4 Bg3 Rc7 Bh2 Rg3 Nd1 Rgc3 Ba2 R3c6 Nc3 Qc4 Rb7 Qb5 Rb8 Bf7 Rg5 Nb4 Be6 Nd5 Bg4 Be6 Qa7 Rb7 Qa8 Bb6 Bh5 d8Q Qa7 Qdd7 Qa4 Bd8 Bf7 Rbc7 Rg8#
NrQB4/K5p1/NRbQ3n/6R1/N1P4r/3qR1q1/3BBkBp/2qQbN2 w - - 0 1 illegal: No proof kernel
R1B3kN/3P4/2Bbn2Q/1b6/BR1r1p2/2Q5/n1K1qBpq/1Q1RNRNq w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Nh6 d5 Ra5 bxa5 Ng8 e4 g5 d4 f5 Kd2 Kf7 h4 c5 d6 g4 d5 c4 d7 c3+ Kc2 a3 h6 f4 d6 a2 a6 g3 b6 g2 h5 Rh7 e6+ Kf6 e5+ Kf5 e7 Ke6 e8B Bb7 a7 Qe7 a8R Qh4 d8Q Rh8 h7 Nd7 h6 Bc6 b7 Bd5 b8R Bg7 Be3 Qe1 Ba6 Nf8 Qb6 Qf1 Bc6 Kf7 Na3 Nf6 Bc8 Ne4 Qdb1 Ne6 Bf2 Rd8 h8Q Bf8 h7 Bc4 Qa6 Be2 Rb4 Bb5 Qb6 Qe1 Qe3 Rd7 Qg3 Qe3 Qg5 Qh3 Qh6 Qh2 Q8g7+ Ke8 Qg3 Kf7 Qf3 Be7 h8N+ Kg8 Qe3 Ng3 Qd4 Ne2 Qc5 Nc1 Qd4 Nc7 e6 Bf8 e7 Ne6 e8B Rd8 Qb3 Be7 Rb1 a1Q Qd2 Na2 Rf1 Qe1 Qb1 Qe2 Rd1 Bc4 Ba4 Bb5 Bc6 Re8 d7 Bd6 Kb3 c2 Qc3 c1Q Nc2 Rf8 Ne1 Rf6 Nh3 Rf5 Rf1 Rd5 Ng1 Rd4 Bh4 Qh5 Bf2 Qe3 Kc2 Qh1 Rd2 Q5h2 Rd1 Qe2+
Q1R1K3/p2B1r1N/1BPb2kB/3p1Rb1/3Qbq2/n1Q1qn2/1N5N/1R3N1B w - - 0 1 legal: proof: d4 c5 dxc5 b5 f4 f5 a4 g5 axb5 Qc7 fxg5 f4 h4 f3 exf3 Qb6 f4 Qc7 f5 Qd8 g4 Kf7 g6+ Ke8 g5 Na6 h5 Rb8 g7 Rb6 Qd5 Qc7 Qd1 Rg6 hxg6 Qd8 Ke2 h5 Kf3 e5 Ke4 h4 Kd5 h3 c4 e4 b4 h2 f6 e3 c6 e2 c7 e1B b6 d6 Kc6 d5 c5 Bc3 b5 Nh6 g8R Be5 b7 Bb2 b8B Bc3 g7 Kf7 g6+ Ke6 b6 Kf5 b7 Qe7 f7 Ba5 Nf3 Be6 c8N Ng4 Qd4 Qd8 Bc7 Qg5 b8Q Bd6 f8N Rh6 Qbb4 Rh4 Bb6 Nf2 Nbd2 Bg3 Qbc3 Rf4 Nh7 Qe7 Bg2 Qf7 Nd6+ Kg4 Nf1 Kh5 Rc8 Rf6 g8B Bf5 g7 Nc7 Bh6 Nd3 Rb1 Be4 Rg1 h1Q N3h2 Qe7 Be6 Nb5 g8Q Na3 Bd7 Rf7 Nc4 Ne1 Nb2 Nf3 Qgh8 Bh4 Kc7 Bf6 c6 Kg6 Qf8 Qc5 Qe8 Be5+ Kd8 Bd6 Qf8 Bb4 Ke8 Bf4 Qfh8 Bg5 Qf8 Qd6 Qfh8 Qf4 Qf8 Nd2 Bf3 Qe3 Rg4 Be7 Rf4 Bd6 Rf5 Qg2 Qfh8 Qg3 Bh1 Nf3 Qhe5 Bf8 Qb8 Bd6 Qa8 Qgf4
1NQ2B1n/B5nb/1bP3k1/N5Nr/1R1n1K1R/1Q3Q1p/BN1R1rbp/1R6 w - - 0 1 illegal: Other
2N1Q2R/K2R2BP/1q5B/2kB4/1Np2b1Q/R2R1n1p/n5b1/b1NQQb1r w - - 0 1 legal: proof: c4 b5 f4 h5 g4 a5 a4 g5 axb5 e5 fxe5 d5 cxd5 Be7 h4 Bf8 hxg5 h4 Rh2 Rh5 gxh5 Ra6 Rh3 Rh6 Rh1 Rh8 Kf2 Kd7 Ke3 c5 b4 f5 d4 c4 h6 h3 b6 a4 g6 a3 h7 a2 e6+ Kd6 b7 Qe7 g7 Nd7 b8R Nb6 b5 Qd8 e7 Na8 e8Q Bd7 b6 Qc7 b7 Bb5 Nc3 Qc8 Bg2 Ne7 g8N Ng6 Ne7 Qc6 Nc8+ Kc7 Qe5+ Kd7 d6 Qa6 d5 f4+ Kd4 f3 Kc5 f2 e4 f1B Nge2 Qa4 Bh6 Ne7 Nc1 Nc7 Kb6 Qb4 Ka7 Kd8 d7 Qd6 Ra8 Ba4 b8B Qc6 Qe6 Ng8 e5 Na6 Bd6 Bg7 Bf8 Kc7 d8R Bf6 Bfg7 Nb4 Qe8 Be7 e6 Bg5 e7 Bf4 Rg1 Qg6 Be4 Qf6 Rg3 Bc6 Rd3 Qe6 Bf3 Nf6 Rb8 Ne4 Ra8 Bd7 d6+ Kc6 Nd5 Kc5 Bg2 Ba4 d7 Nd2 Bf3 Rf8 Bh1 Na6 Nb4 Bc6 Bd5 Qd6 Qg6 Rf7 e8Q Nf3 Qg3 Re7 Qh4 Re1 Qe6 Bb7 Rh8 Qc7 d8Q Qc6 Rb1 a1B Qde8 Qc7 Rb2 Qd8 Rbd2 Qf6 Nc6 Nb4 Qe4 Na2 Nb4 Bg2 Qee2 Rh1 Qee1 Qg6 Ra3 Qb1 Rdd3 Bf1 Rb8 Bc6 Rb7 Qb2 Re7 Qf6 Rc7 Qd8 Rb7 Qb6+ Ka8 Nh2 Be6 Qb5 Ka7 Bcg2 Rbd7 Nf3 Bd5 Qb6+
N1r1B1Q1/bRN2prR/2r3qQ/r1RQR3/3P1b2/1B2Bp2/2K1k3/N1Q2n2 w - - 0 1 illegal: Other
1k6/2N5/1q1p1NK1/3Nq2Q/Q1bB1R1q/2nNq1Rr/1pP2BBQ/r4R1R w - - 0 1 legal: proof: d4 a5 f4 c5 dxc5 f5 b4 Kf7 bxa5 Qe8 e4 Nf6 exf5 Ng8 g3 Qd8 f6 Ke8 h4 g5 Be3 Nc6 Bc1 Nd4 g4 Nf5 gxf5 g4 Bd2 Bh6 Bc1 Bg5 hxg5 Ra7 Rh6 Ra6 Rh1 Ra8 Kd2 b5 Ke3 h5 Ke4 e5 a4 b4 a6 g3 c6 g2 c7 h4 a7 h3 g6 b3 a5 d6 g7 Kd7 f7 b2 f8N+ Kc6 a6 h2 f6 Nh6 g8R Bb7 c8Q+ Qc7 f7 Rh7 f5 Rg7 f6 Nf5 Nh3 g1Q Bg2 Rh7 Qh5 Ng7 Be3 Qd1 Nc3 Qe1 Nf4 Qb1 Bf2 Rb8 a8N Ne6 Kf5+ e4 a7 Ba6 Nd7 Qc1 f8R Bc4 f7 Nd4+ Kg6 Qe3 Nd3 Nb5 Nd5 Nc3 Raf1 Rh8 Qd8 Kb7 N7f6 Qcb6 Nac7 Ra8 Qe8 Rh7 Qe2 Rh3 Qa4 Qd2 Qh5 e3 Rg7 e2 Rgg8 e1Q Rg7 Rb8 Rgg8 Qe8 a8Q+ Kc8 Q8a5 Qde3 Rg7 Nd1 Qd2 Nc3 Bg1 Qe4+ Kg5 Qa7 Qf4 Rb3 Ng8 Na2 Bf2 Ra3 Rhg1 h1Q Qe5 Qh2 Rh1 Rh4 Kf6 Qh3 Qh2 Qee3 Rg3 Qab6 Kg6 Kb7 Ngf6 Q8e6 Re8 Nc3 Re7 Ra1 Re8 Q6e5 Re6 Q5f4 Re4 Qe5 Rf4 Qe7 f8B Kc8 Ng4 Kb8 Bg7 Q7e6+ Bf6 Qe7 Bd4 Q7e5 Ngf6 Qg4+ Kh7 Rh3 Kh6 Qh4 Kh7 Qe6 Kg6 Q6e5
R1b2Q2/1BK1B1b1/2p1p1N1/Q2nQq2/nP4n1/1Bn3B1/2bkN3/N1RN1R2 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Na5 axb3 Nc6 b4 Nb8 b5 Ba6 Nf3 Bb7 Ng1 Bc8 h3 a5 Qa4 g5 Qd1 h5 Qf3 Ra6 Qd1 Rc6 Nf3 Rc4 Ng1 Rf4 h4 Rf5 gxf5 g4 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 Kc5 a4 d4+ Ke4 b4 c6 b6 h4 d6 a3 g6 g3 d7 g2 b7 h3 d5 h2 d6 a2 g7 Nh6 g8B Qe8 Kb6 Na6 d8R Qd7 b8B Bb7 Bg5 Qe8 d7 Nc7 Nc3+ Ke5 Qe1+ Kd4 Rc1 a1N Ba6 Nc2 Nge2+ Ke5 Rf1 h1B Nd1 Bg7 f8N Ke4 f7 g1N f6 Na1 Ne6 Nb5 f8N Kd3 f7 Be4 Ng6 Nb3 f8Q Nc5 Bg3 Nh3 N6d4 Nf4 Bb3 e6 Be7 Ng4 Nc2 Qf7 Ra8 Qf5 Na1 Bc8 Bb7 Nc3 Kc7 N5a4 d8Q+ Nfd5+ Kb8 Bf6 Qa5 Bg7 Qf2 Nb1 Qf4 Nbc3 Qd6 Kd2 Qe5 Nde3 Kc7 Bd3 Bd5 Bc2 Bb3 Ned5+
3B2N1/1q1RnP2/5b1N/2pRN1Nk/B1p1Qb1B/1R1br1B1/2Q3p1/1KQ4n w - - 0 1 illegal: Other
b1Q4B/n3p2N/8/R1Q4n/N1BRpP1k/1Q1QB2N/RqKpR3/3rb1n1 w - - 0 1 illegal: Other
2r1Q3/4B3/kbR1pR1P/q4Npb/2KQNNR1/4p2N/1B1RBn2/1q2q2Q w - - 0 1 illegal: Other
N3q1B1/3pN1Qr/3Qp1NN/Qr6/1K2R1b1/1b4bR/4RpPQ/B1k1B2q w - - 0 1 legal: proof: d4 c5 dxc5 a5 f4 f5 b4 g5 bxa5 g4 h3 Nc6 hxg4 Nd4 e3 Ne6 e4 Ng5 fxg5 f4 Be3 Nh6 Bc1 Nf5 exf5 Qb6 Ke2 Qc7 Ke1 Qd8 Kd2 Kf7 Kc3 b5 a4 h5 c6 f3 a6 f2 a7 h4 c7 h3 a5 h2 g6+ Kf6 g5+ Ke5 g7 Ke4 g8Q Bb7 c8R Qe8 f6 Qg6 a6 Qf7 g6 Bg7 Nf3 Rb8 a8Q Qe6 a7 Qf7 Kb4 Qe6 c4 Qh3 f7 Bd4 f8B Rh5 g7 Re5 c5 Qh7 c6 Qh6 c7 Qh4 Ra2 Qg5 Re2+ Qe3 Nc3+ Kf4 Nh4 Qd2 Bb2 Rf5 Re8 Rh5 c8Q Bf3 Ba1 Qe1 Qc7+ Be5 Qdd6 Bg4 Qa5 Rb6 Qab8 Rh7 a8N Rb7 Qh8 Rb6 g8N Rb7 Rg1 h1Q Nh6 Rb6 Qg7 Rb7 Rd2 Ke3 Ng6 Bg3 Bc4 Rb6 Bg8 Qe2 Kc5 b4 Rf1 b3 Nd5+ Ke4 Re1 b2 Rd3 b1B Kc4 Qe3 Re2 Bc2 Qbc7 Rb1 Qb8 Bb3+ Kb4 Bh4 Qh2 Bg3 Qd6 Rb2 Rc3 Rb1 Rc4+ Kd3 Re4 e6 Rc8 Qg5 Nde7+ Qd5 Rc1 Rb2 Rce1 Rb1 R2e3+ Kd2 R1e2+ Kc1 Rf3 Bh4 Rh3 Bg3 Qf7 Qc6 Bfg7 Rb2 Bc3 Qc8 Be1 Qe8 Qf8 Rd2 Qf7 Rd5 Qg7 Rb5+
1RQNbR1r/QN1bk2P/Bq6/2b1N3/1p1pr2N/2B2B2/1QpQ1p2/1K3R2 w - - 0 1 illegal: No possible last move
N2QnNqR/B3brn1/2B1R1N1/QQr5/8/NbqR1q2/1P2B3/1bk1nBK1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 d4 h5 f4 a5 Kf2 e5 g6+ Kf6 g5+ Kg7 d6 c5 d5 c4 d7 e4 b6 c3 d6 h4 b7 c2 Qd5 h3 Na3 h2 Be3 c1Q Nf3 a4 Qa5 Be7 Nh4 Qd1 Ba7 Nc6 b8Q Nf6 Qbb5 Qg8 d8R Ne8 d7 e3+ Kg2 Qd3 Re1 e2 Kf2 Rh7 f6+ Kf8 g7+ Kf7 g6+ Ke6 f7 Nd4 f8Q Qc3 f5+ Kd6 f6 Ne6 f7 Rb8 Rg1 h1B Rg3 Be4 Kg1 Bb1 Re3 Bb7 Rd3+ Bd5 Rc8 Ke5 d8N Rb6 Ra8 Ke4 Rc8 Nf4 Ne6 Nh5 Nc7 Bb3 Na8 Rc6 Rcd8 Rc5 Rb8 Nc7 Qd8 Ne8 f8N Kf4 Rb6 Ke4 Re6+ Kf4 Rc1 e1N Rc2 Qh8 g8B Rf7 Rh2 Nhg7 Nf3 Qh3 Ne5 Qf3 Rh8 Ke4 Nac4 a3 Be2 a2 Na3 Nf5 g7 a1Q Bh7 Kf4 g8B Nfg7 Be4 Qa2 Bf1 Bd1 Bc6 Bb3 Rdd6 Ke3 Be2 Qd5 Neg6+ Kd2 Rd7 Kc1 Bf1 Qdf3 Rd3 Rf4 Bf7 Nd6 Bfe8 Rf7 Bed7 Qe2 Bf3 Nde8 Bdc6 Qe4 B3e2 Qf3 Nc4 Qa4 Na3 Qae4 Ne5 Qh7 Neg6 Qg8
1nR5/1Rq2kbb/B1n2N1Q/1K1n2Q1/4rr2/1B2R1Pr/1B6/QQNqbRN1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 e5 Kd3 c5 Kc4 a5 d4 h5 f4 a4 b4 a3 b6 a2 b7 e4 d6 h4 g6 e3 d5 h3 g7 h2 f6 e2 d7+ Kf7 b5 e1N d6 Nf3 g3 Qa5 d8Q Bh3 d7 Kg6 f7 Rh4 b6 Ng5 Nc3 Ra7 Nce2 Qa3 Bb2 Rh7 Kb5 c4 Nc1 Bb4 f8Q Ne7 g8B c3 Bb3 Ne6 Qh6+ Kf7 f5 c2 f6 Bf5 Qh8 Bc3 d8Q Ra4 Q8d2 Nd5 Qdg5 Nd8 Qd3 Nd7 b8N Be1 b7 Qd6 Rb1 a1B Q8g7+ Ke6 f7+ Bg6 f8R Re4 Rf2 Qc7 Rf3 Nc6 Re3 Rh8 Qd1 Rf8 Qgh8 Kf7 Bd3 Nc5 Nd7 Na6 b8R Bh7 Rc8 Nab8 Bdc4 Ne7 Nf6 Nec6 Na2 c1Q Qd3 Qd2 Nc1 Qe2 Ng4 Qb6+ Ka4 Rd4 Bc3 Qc2 Nge2 Qb7 Rf1+ Bf2 Ng1 Qd1 Bc2 Qc7 Rb7 h1R Bb3 Re8 Qb1 Rf4 Be5 Bd4 Ba6 Be1 Kb5 Rh3 Bg7 Bc5 Bd4 Bd6 Qhe5 Bf8 Nf6 Bg7 Ba1 Rf5 Qc3 Re7 Qa5 Ree5 Bb2 Rf4 Qaa1 Ree4
5br1/r2NnQ1n/R3n1NB/1B1k1q2/Q2Pb2Q/1rq5/2KN1R1q/1B1QR2N w - - 0 1 illegal: No possible last move
qrKNBNr1/1Q1N4/1QQR2n1/qR6/kBPqr3/2nn4/5BR1/1R2bbN1 w - - 0 1 illegal: No possible last move
R2B1Rqq/NB4b1/1q3R1Q/K1Q1nbB1/PQr4r/3r1Qb1/1n1N2Nk/4N3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc3 b5 Kb4 e5 h4 g5 a4 e4 f4 g4 f6 c6 h6 g3 h7 e3 f5 g2 a6 e2 h5 e1B+ Nd2 Nd7 h6 Ne5 f7 Bf2 a7 Qg5 f6 c5+ Ka5 c4 Ngf3 g1Q Bg2 c3 Ne1 b4 Qf3 Qh2 Rf1 Be7 f8Q c2 f7 Rb8 a8R b3 Bh1 Kd7 d6 Ke6 d7 b2 d8B Bf6 Qc5 b1Q f8Q Nd3 d5+ Ke5 Ra2 Ne7 d6+ Nd5 d7 Bg7 Qb4 Bg3 Qfc5 Nb2 Rf2 Rb6 Ra3 Rd6 Ra2 Rf8 h8Q Rf4 h7 Rh4 Qhf8 Qg6 h8N Qh7 Ra3 Qg8 Rd3 Qh3 Rd4 Qh2 Rf4 Qh3 Rf6 Qh2 Qc7 Nf4 Qcb6 Rd5+ Qfc5 Nfd3 Rf8 Qh3 Qh6 Qh2 Ne4 Qh3 Bcg5 c1R Nd2 Rcc4 Ng6+ Ke6 Nc2 Ne5 Ne1 Rd3 Bg2 Qf5 Bh1 Qf6 Nf4+ Kf5 Nfg2+ Rcf4 Qfd5 Kg4 Qf3+ Kh3 Qfb7 Qa1 Be7 Rc4 d8N Nd7 Qbd5 Kh2 Nc6 Bh8 Bd8 Nd1 Na7 Qac3 Rf3 Nb2 Ne3 Qd6 Qf5 Qcf6 Rf1 Ne5 Bb7 Qfg7 Qe4 Qdg6 R1f7 Bf5 N3g2 Q7h7 Qg4 Bg7 Qf3 Qd6 Rf6 Qhh8 Bc6 Qde6 Bb7 Qb6+
2B1R1nq/5QB1/K1RnN2r/1N1QQ1Nr/P2bbRB1/1qrk1N2/q6b/6R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 d4 g5 h4 e5 a4 c5 f4 g4 f6 c4 d6 g3 f7 b6 d7 g2 a6 c3 f5 c2 a7 Na6 f6 Ne7 d5 Ng8 h6 Bb4 f8R Bb7 h5 Ba3 h7 Qe8 d6 Nh6 f7 Rc8 a8B Bd5 Bb7 Rc6 d8R Bb4 d7 Bc3 Bb2 c1R Be2 Nc5 Bg4 Bd4 Bc8 Rc3 Nf3 g1B Na3 Ng8 h6 Nb7 Ka6 Bh2 Rg1 Nd6 Rc1 Qe6 Qb3 Kd3 Rde8 e4 d8N e3 Nb5 Be4 Qd5 e2 Ba1 Qe5 Ne6 e1Q Rc2 Qb1 Rcc1 Nf6 Neg5 Qb3 Bb2 Rg8 h8Q Rg7 h7 Ng8 Ne6 Rg5 Qg7 Rf5 h8Q Rh5 Neg5 Qf6 Qgh7 Qh6 Qhe5 Qg7 Rd8 Qh8 Rfe8 Qa2 f8N Qb3 Qhf7 Qa2 Na3 Qb3 Nfe6 b5+ Ka5 b4 Nb5 Qa2 Rf8 b3 Rde8 Rb6 Ba1 b2 Rc2 Ra3 Rc6 b1Q Bc3 Qbb3 Ba1 Rb8 Ka6 Rh6 Qfg7 Rb7 Rf4 Rc7 Qf8 Rch7 Qf7 Rh5 Bc3 R7h6 Bb4 Nc4 Bf8 Nd6 Bg7 Qbb2 Bf8 Rc3 Bg7 Qbb3
2q2B2/6BK/bkB3QQ/1Pn2qBr/4qbN1/n3R3/NR3Rr1/QNQr2b1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 e5 Ke4 a5 h4 c5 b4 Kc7 f4 g5 d4 c4 h6 c3 d6+ Kb6 f6 g4 h7 c2 d7 a4 Kf5 e4 Kg6 g3 f5 g2 f7 e3 f6 a3 d5 e2 h5 e1R h6 a2 d6 Re5 Rh2 Kb7 b6 Re4 Nh3 g1Q+ Bg2 Qh1 Bg5 c1Q Nf2 Qg1 Ng4 Qce3 Qc1 Qe8 d8N+ Ka6 b7 Qf3 d7 Qh1 Nc6 Re7 d8Q Nd7 b8R Nb6 Qd6 Re2 Rh3 Qf4 Re3 Nc4 Qd3 Bb7 b5+ Kb6 Nb4 Qc8 Bc6 Bg7 f8Q Na3 f7 Nf6 Qfd6 Qd5 f8B Ne4 Qf6 Rh2 Qe5 Rg8 h8B Nc5 h7 Bh6+ Bhg7 Rh5 h8Q Qf1 Qdf5 Qe4 Kh7 Ra7 Qg6 Qff5 Ra8 Ba6 Qe6 Re7 Ra7 Re8 Rf7 Rd8 Rf6 Rd1 Qd6 Qfe6 Rf2 Q6e5 Nc3 Q5d5 Rb1 a1B Nba2 Qdf5 Rb3 Bb2 Nb1 Be5 Qf6 Bh2 Qa1 Bg1 Rbb2 Rh2 Bfe7 Rg2 Bd6 Rd8 Bdf8 R8d5 Bh4 Bf4 Bg5 Kc7 Kg8 Kb6 Qhh6 Re5 Kh7 Qfd7 Bge7 Rh5 Bg5 Qdf5
kB2RbQ1/1r1B1Rn1/4Pq1N/N3qr2/8/1QN1Q2n/1rBnQRb1/1bKR4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 e4 c5 d4 Kc7 Kd2 Kb7 e6 f5 b6 g5 e7 c4 e8B g4 e5 g3 h6 a4 b5 f4 e6 a3 h5 g2 h7 f3 d6 f2 d5 a2 d7 Ra7 h6 Bg7 d6 Na6 Nf3 g1Q Ng5 Be5 Nc3 Qc7 d8N+ Ka8 d7 Bg7 b7+ Kb8 Ngf7 Qcg3 Rh2 Ne7 Bd3 f1B Qe2 Bg2 Bc2 Rf8 h8Q Nb4 h7 Nd3 Qg8 Nf4 h8R Nh3 Nh6 Nf5 Rh7 Qf1 Rb1 Be4 Rf2 a1R Ba3 Bg2 Rd1 Ra2 Kc1 Rb2 Qe3 Qc7 Bd6 Rf7 Bg3 Bf8 Qg4 Qe5 Qge2 Rf6 Rf7 Ng7 Bf4 Rf5 Nc6+ Kc7 b8R Ba6 Rc8+ Kb7 b6 Bb5 Ra8 Ba4 Rd8 Bb3 Rc8 Ba2 Bg3 Bb1 d8Q+ Be7 Bd7 Bf8 Nb5 c3 Na5+ Ka6 Qdg5 Rc7 Re8 Rb7 Be4 c2 Qb3 Qf6 Bb8 Qe1 Qge3 Qec3 Nc4 Qce5 Nc3 Rc7 Bd3 Kb7 Na5+ Ka8 Qa3 Ra7 Rff1 Qd8 Qf4 Rb4 Bd6 Rb2 Kd2 c1N+ Bc2 Bd5 Qd4 Rc7 b7+ Kb8 Qdf2 Nh5 Qfe3 Bf3 Rf2 Nb3+ Kd3 Bc6 Qb4 Bh1 Qbg4 Bg2 Qg8 Nc5+ Kd2 Ne4+ Kc1 Ng7 Q3d3 Ka7 Qdf3 Qdf6 Qee3+ Ka6 b8Q Nd2 Qb3 Rb7 Qee2+ Ka7 Bb8+ Ka8 Qfd3 Rc7 Qde3 Rb7
4b1rR/B2nb1nN/1Pr5/k3bBB1/N2Q2RN/2qQ3R/K1q2R2/Q3n1qQ w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 c5 f4 Kc7 d4 Kb6 Kd2 a5 Kc3 e5 Kb2 g5 h6 e4 f6 e3 f7 a4 h5 a3+ Ka2 c4 f5 c3 h7 c2 h6 g4 f6 e2 d6 e1N d5 g3 d7 g2 d6 Qc7 d8Q Bd7 Nf3 g1B Bg5 c1Q Bh3 Ne7 Nh4 Rg8 h8Q Nd3 h7 Ne5 Nc3 Bf2 Na4+ Kb7 b6 Ka6 b5+ Ka5 b7 Bh6 f8N Ng4 b6 Bd4 f7 Nh2 Bf5 Be8 d7 Nf3 Rh3 Q1c3 Qh1 Be5 Rg1 Ne1 Rg4 Rg6 Qg7 Rc6 h8R Qc8 Qf6 Qc7 Nh7 Bf8 Qd6 Qc8 Qd1 Qc7 Qa1 Qc8 Bb1 Nf5 Be4 Bfd6 f8R Ng7 Rf2 Qc7 Qf6 Be7 d8Q Nd7 b8B Qc8 Ba7 Rb8 Qd1 Qc7 Qd4 Qc2+ Ka1 a2 Bf5 Nc5 Qh6 Ned3 Rhg3 Bf7 Bc1 Rf6 Qg8 Nd7 Rh3 Bg6 Qb3 Rg8 Qbb2 Be8 Qd2+ Q7c3 Qdd1 Rc6 Bg5 Qe1 Qbc1 Qg1 Qa3 Ne1 Qdd3 Qc5 Kb2 a1Q+ Kb3 Qac1 Qaa1 Q5c3+ Ka2 Q1c2+
2B1n1QQ/BrQK2Qb/q2R1N2/1bR3bn/1Nr5/k1B2P2/1N1r2n1/2N2Rb1 w - - 0 1 illegal: No possible last move
1r3KB1/1k1n2R1/RbN2N2/R1n3bN/b5Q1/1QB1rP2/2brN2Q/n2q1B1Q w - - 0 1 illegal: No possible last move
1nn1n2N/qrR1K2k/RPN1Q1b1/B7/1QR4B/bB1N4/2NrQr2/1bR4r w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 Kg7 Kf4 c5 Ke5 h5 f4 a5 g4 c4 b4 c3 d4 a4 f6+ Kh7 f5 e6 b6 h4 d6 a3 f7 h3 d7 c2 f6 h2 d5 a2 d6 Qe8 d8N Ra4 b7 Ne7 d7 Ra3 Kd6 e5 b5 e4 b6 e3 g6+ Kh6 g7 Ra6 g8Q Nbc6 b8N Ra5 Bd2 c1R Na3 Rcc5 Nf3 Re5 Nc2 Rf5 Qe2 Ra7 Nfe1 Rf2 Nd3 Rb7 Ba5 Rh7 Rc1 a1N Bg2 Rh8 Bd5 Nb3 Ke6 Nd2 Bb3 Nc4 Rhd1 Bg7 f8Q h1B f7 Nd6 g5+ Kg6 Ra1 Be4 Rdc1 Nd5+ Qe7 Rh5 f8R Nf6 Rf7 Rh1 Ra4 Rd1 Rc4 Rd2 Qf8 Kh7 g6+ Kh6 Qg8 Bf8 g7 Bh7 Qf1 Bg6 Qe2 Nb4 Nbc6 Na6 Nce5 Nb8 Ndc6 Bh5 Ng6 Qd8 Ra4 Nfe8 Rc4 Qc7 Nh8 Bg6 Qh4+ Bh5 Qd4 Bg6 Qc5 Be7 Qb4 Bf8 Rf5 Be7 Rfc5 Bf8 Qf7 Kh7 Qf5 Be7 g8R Bf8 Ke5 Be7 d8B Be6 Qf6 Bef5 Qe6 Bf8 Bh4 Qd7 Qf3 e2 Kd5 e1R Qfe2 Bf7 Rg3 Rh1 Rgg1 B7g6 Ra1 Bg7 Rgc1 Bb2 Ra2 Ba3 Ke5 Ng7 Kf6 Qc7 Ne7 Qd7 Rc7 Qa4 Nc6 Be4+ Ke7 Nge8 Nb2 Bef5 Ne3 Bb1 Nc2 Qb5 Ra1 Qa6 Nd3 Qa7 Qc3 Be4 Bb4 Bb2 Ra6 Ba3 Ba5 Bg6 Qb4 Nc8+
nn1bNq1Q/1R2QbR1/Bb1N2B1/5RK1/P1r1b2q/2R1r3/4QBkN/b3B3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 a4 Ke4 d4 b5 f4 g5 h4 c5 a6 e5 d6 c4 h6 c3 d5 b4 d7 b3 h7 c2 d6 b2 a7 Bg7 f6 Na6 f7 Bf8 h5 Ne7 f5 Qb6 d8R Nc6 h6 Na5 d7 Bb4 f8R Rb8 a8B+ Bb7 f6 Bc5 f7 Qb4 Rc8 Be7 d8B Nc6 Be3 c1B Ba5 Nc7 Nf3 Bd8 Na3 b1B Bf2 Bb2 Nc4 Ba2 Rb1 Ba1 Rg1 Qc5 Kh5 g4 Nh2 g3 Bae1 g2 Nd6+ Kf4 Ba6 e4+ Kg6 e3 Ne8 e2 Rb5 Qa3 Kh5 Rg8 h8N Rg3 h7 Re3 Rf5+ Ke4 Rg8 Bd5 f8Q Bf7+ Kh6 Qe7 Rg7 Qc5 Rh1 g1B Qfd6 Qb4 Qd7 Qf8 Qe7+ Ne6 Rc7 Rc8 Qd2 Nb8 Rc3 Rc4 Qb2 Bh5 Nf7 Bc6 h8Q Bb7 Qf6 Nc7 Kg5 Bd5 Bc6 Na8 Bd7 Bg6 Qe7+ Be6 Bd2 e1Q Nfd6+ Kd4 Bc6 Bef7 Be4 Bh7 Rb5 Bhg6 Rb7 Bh7 Bg6 Kd5 Bh5 Be4 Bg6 Kd4 Rc1+ Kd3 Rc3+ Ke2 Qb5 Qf1 Bde1 Qh3 Ng4 Qh7 Rh5 Kf3 Nh2+ Kg2 Kh4 Qhg8 Rf5 Qh7+ Kg5 Rh3 Bg3 Bgb6 Bgf2 Re3 Qb2 Qh3 Qe2 Qh4+
Kbk5/1bN2B1N/PQb4q/nN2N2R/2bn1B1r/b7/1R2BRqB/Q3Q2r w - - 0 1 illegal: No possible last move
kB1qnRr1/b4QBK/N2rbq2/1b2NR1B/1RQ5/5r2/QQ1PR1N1/3n2b1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 f4 Kb7 g4 a5 b4 h5 b6 e5 d6 a4 f6 h4 d7 h3 Kf5 e4 Kg6 h2 f5 e3 f7 c4 f6 c3 b5 c2 Qf3+ Nc6 Nh3 e2 Nf4 e1R Bb2 c1Q Ng2 a3 Be2 a2 Na3 Be7 f8R Kb8 f7 Rh5 b7 Qc7 d8Q Nb4 Nc4 Qf4 Ne5 Nd5 Rb1 a1B Qb6 Nh6 Kh7 Bc5 g6 Bd4 g5 Bf2 g7 Qc7 g8Q Ne3 g6 Rf1 g7 Qf6 Qf4 Rh3 Bh5 Rf3 Qc4 Qcd8 Rg1 Rc1 Re1 h1B Re2 Nhf5 Bd4 Nd6 Rb4 Ne8 Bc3 Qh4 Qf6 Ka7 b8N Be6 Na6 Bg1 b6+ Kb7 Qh8 Nd1 g8Q Qf4 Qfg6 Qff6 Qb1 Rb8 Qba2 Ka8 Bb2 Rcc3 Qgg7 Rcd3 b7+ Ka7 Qg6 Rd6 Bc3 Rc8 b8B+ Ka8 Qhg7 Bb2 Qgb1 Ba3 Qbb2 Ba7 Rh8 Bg1 f8R Ba7 Qf7 Bg1 Rb5 Bac5 Rb4 Ba7 Rhg8 Rcc6 Rg5 Rc8 Nh4 Bg2 Rf5 Bh3 Ng2 Bd7 Bd4 Bb5 Be3 Bg4 Bh6 Bh3 Bg7 Bg4 Rg5 Be6 Rf5 Qa5 Nh4 Nc7 Rh8 Rf8 Ng2 Ne8 Rg8 Qad8 Rh8 Rg8 Bh6 Rg5 Rf8 Rg8 Bg7 Qb6 Qbb1 Qc7 Qbb2 Qcd8
B4Q2/Bq1RNKR1/4nb2/q1Rr4/k3qN1Q/b1BNRBP1/5nrQ/4q2b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 h5 Kc4 a5 b4 e5 d4 c5 f4 e4 f6 a4 b6 e3 g6 e2 f5 e1Q g7 a3 g3 a2 b7 h4 d6 Kc6 d7 h3 d5+ Kb6 f7 h2 f6 Rh3 b5 Ka5 b6 Qee8 d6 Na6 Kd5 c4 b8N c3 b7 c2 Qd2+ Ka4 Be2 Qb6 d8Q Qe7 d7 Nc5 Nc6 Qa7 b8B Nb3 Nb4 Rh6 Nd3 Kb5 Nh3 Qb6 Re1 h1Q+ Bf3 Qf1 Nc3+ Ka5 Qh2 Qf2 Nhf4 Qf1 Bd2 c1Q Ba7 Qh1 Re3 Qce1 Rc1 a1B Rc2 Qb4 Qe7 Rh4 d8R Nd4 Rd7 Nh6 g8B Ng4 Qe4 Be7 f8Q Ne6 f7 Nf2 Qh7 Rg4 Q7h4 Bb7+ Ke5 Bd6+ Kf6 Rg5 Rc1 Re5 Ncd5 Ka4 Bc3 Q4a5 Ne7 Ba3 Bh7 Qbb4 Bhe4 Rb5 Bd5 Qe4 Rc2 Rb2 Rc1 Rd8 Rc2 Bc8 Ba8 Bb7 Bcd4 Rc8 Be2 Qed5 Qg8 Nd1 f8R Rc5 Rf7 Qb3 Qd8 Bf3 Qf8 Qb7 Rg7 Rd5 Kf7 Ra2 Bdc5 Bf6 Bb4 Be4 Rc8 Qf3 Bc3 Qg4 Nh5 Bh1 Rc5 Qe4 Bf3 Rg2 Nhf4 Nf2
2q5/5r2/Nn2R3/R1B3Nk/bbqQB3/n1P1Nrnn/1R5B/KQ1BRQr1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 a5 h4 d5 f4 e5 b4 g5 Kb2 e4 c3 g4 b6 d4 h6 g3 f6 Kg6 c6 a4 f5+ Kh7 f7 e3 c7 d3 b5 e2 b7 e1Q h5 d2 b6 g2 f6 Nc6 b8N Nd4 b7 Qe2 Nh3 g1R Na6 Bd7 c8B Qe1 b8R Bc6 Bf5+ Rg6 Na3 Nf3 Be2 Ne5 Nc4 Nd7 Ne3 Nb6 Be4 Bb4 f8B Qc8 f7 Qf1 Bc5 Nf6 f8Q a3+ Ka2 Qf4 Re1 Ra7 Qb3 d1N Qb1 Nf2 Bd1 Rg7 Qf7 Rf8 Ng5+ Kh8 h7 Ba4 Qc4 Nh3 Qf1 Rgf7 Bd2 Kg7 h8R Qh4 Rg8+ Kh6 Bc1 Rd8 Re8 Rd3 Re6 Qf4 Nc2 Qfc7 Bf4 Rf3 Ne3 Qc6 Bh2 Qd5+ Qb3 Qc4 Kb1 Rgg7 Ra2 Rg6 Ka1 Rg8 Rb2 a2 Ra8 Rg6 Qc2 Rg8 Qb1 Rgg7 Bg6 Ne4 Ra7 Ng3 Be4+ Rg6 Re8 Kg7 h6+ Kf6 h7 Rg8 Nf5 Kg6 Re6+ Kh5 h8Q+ Kg4 Qd4 Kh5 Ne3 Rg6 Rc2 Rgg7 Kb2 a1N Rg2 Nc2 Ra8 Na3 Ka1 Rf6 Rb2 Rff7 Nc7 Rg6 Ra5 Rgg7 Na6 Nh1 Nh7 Rg1 Ng5 Ng3
Q1Nq3k/B1bqbrn1/5BRN/4R3/NbR1n1q1/2P2bQ1/Br4B1/K2Q3N w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 g5 f4 Kg7 b4 d5 Kb2 a5 h4 e5 f6+ Kh7 b6 e4 h6 a4 b5 g4 f5 d4 h5 e3 c6 e2 f7 e1Q c7 g3 b7 g2 f6 d3 b6 d2 Rh4 Be7 f8R Na6 b8B Bg4 c8B Qe4 b7 Qed4+ Nc3 Qf4 f7 Bg5 Re8 Qh2 f8Q Nb4 Nge2 g1B Re5 Bf6 Be6 Bf2 Bg2 Qf4 Ba7 Qd6 b8Q Qd8 Ng3 Be7 Ba2 Be1 Nh1 a3+ Kb1 Nf6 Bb2 Bf3 Na4 Qg5 Rc4 Ne4 Qf4 Qf5 Qg3 Qg4 Bc3 Kg8 h7+ Kg7 Bb2 Rf8 h8N Nd3 Ng6 Ndc5 h6+ Kh7 Qb7 Rb8 Qa8 Kg8 h7+ Kg7 h8N Ne6 Nf4 Rf7 Nd5 Kg8 Ndb6 Ng7 Nc8 Rb3 Ng6 Qgd7 Nh4 Kh8 Nf5 Rb5 Qc1 d1Q Nh6 B1b4 Bc3 Q1d4 Qd1 Qg4 Bd2 Qd4d7 Bg5 Bed6 Bf6 Bc7 Bb3 Rb6 c3 a2+ Kb2 Rb8 Rc1 a1B+ Kb1 Rb5 Ba2 Bb2 Rc2 Bc1 Ka1 Bca3 Re2 Rb8 Rg5 Be7 Rg6 Rb2 Re1 Bab4 Re3 Nd2 Re5 Ne4
3k1r1r/bQ1N1BB1/1N4R1/Q2BnqRB/bK6/P7/n3Qr1R/Q1bN2qb w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 h5 g4 c5 d4 b5 Kd2 e5 Kc3 e4 f6 e3 g6 h4 g5 e2 g7 e1R a3 h3 f5 c4 f7+ Ke7 a6 h2 a7 Rh3+ Nf3 Qe8 d6+ Kd7 g6 Be7 f8R Qd8 f6 Rh6 f7 Bg5 d5 Rh8 Bb2 Bf4 Nfd2 Be5+ Kb4 c3 Nc4 c2 Be2 c1B Bh5 Bg3 Qe2 Bcf4 Nc3 Qg5 Nd1 Nf6 g8B Bf2 g7 Ne8 Nb6+ Kd8 d7 Qg4 Rc1 Bg1 Rc6 Rf1 Rg6 Qf5 Be5 Bf2 Rhg1 h1B R1g5 Bc1 Ba1 Kc7 Bb2 Nf6 d8Q+ Kb7 d6 Nbd7 Ba1 Ne4 Qf6 Ne5 d7 Nc3 d8Q Bd7 Re8 Bfe3 f8N Rf2 Bf7 Rc8 Qde7 Kc7 g8B Rd8 a8Q Rc8 Nc4 Ba7 Nb6 Rb8 Qc5+ Bdc6 Re7+ Kd8 Qb7 Be8 Nfd7 Rc8 Ka5 b4 Bd5 b3 Kb4 b2 Bgf7 Rf8 Qa5 b1Q+ Bb2 Qbd3 Qh8 Qg3 Ree6 Qg1 Rc6 Nb5 Rc2 Ra8 Bd4 Nc3 Rd2 Nc4 Bg7 Ne5 Rd3 Rb8 Rh3 Rc8 Rh2 Ra8 Nc5 Ba4 Ncd7 Na2+ Kc5 Ng4 Qc6 Rg8 Be6 Ke7 Bh6 Raf8 Qb7 Kd8 Qa1 Nc3 Bg7 Ne5 Kb4 Rh8 Bf7 Na2+
1NrQ2Rn/1BR2qb1/8/3P1qr1/bKQNqq1Q/1b1QBn2/2N2R2/1k3NB1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d6 Kd7 b4 a5 g4 h5 f4 c5 d4 e5 Kd2 c4 Kc3 h4 f6 Ke6 d7 Kd5 f7 Ke4 g6 a4 f5 a3 g7 a2 b6 h3 b5 h2 g5 Bb7 f6 Bd6 f8N Ne7 g8Q Nf5 f7 Qc8 g6 Bd5 b7 Ne7 g7 Nbc6 b8B Ng6 b6 Rh5 b7 Rg5 Ne2 Nh8 Ne6 Bf8 Na3 Qe8 Rg1 h1B Rg2 Qc8 Rb1 a1Q+ Rb2 Qc7 Ba7 Rc8 b8N Qb1 Rc2 Qb5 Bf4 Qb1 Bh2 Ke3 Rf2 e4 Bh3 Ne5 Bg2 Bc6 Qf1 Ba4 Ng3 Bb3 Bc5 Qa7 Kb4 c3 Rc1 c2 Bg1 Qc7 Qa6 Qa7 Qd6 Kd3 Nf1 e3 Bc6 Qc7 Bb7 e2 Ba7 Bc6 Qe7 Rg2 d8Q Bca4 d5 Rg6 Qh7 Nf3 g8R Bg7 f8Q Qd7 Qf4 e1Q+ Nd2 Qe5 Qeh4 Qf7 Nf1 Qef6 Be3 Qe5 Bd2 Qg5 Qfc7 Qgf6 Nd4 Qg5 Re1 c1Q Re7 Qcc2 Bc1 Qgf4 Qc6 Qe2 Rc7 Qee8 Be3 Qed7 Kc5 Kc3 Qa6 Rg5 Qb5 Qd3 Nac2 Kb2 Kb4 Kb1 Qa6 Qdg6 Qc4 Qge6 Qhd3 Qee4 Qcc3 Qde6 Qcc4 Q6f5
n2K1NrB/1Q1BNrb1/2q4P/2R2R1B/1rb2q1k/2Qn2rN/5RQ1/2Q1b1N1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 Ke4 a5 h4 g5 b4 c4 d4 c3 e6 Kf6 h6 g4 e7 a4 e8R g3 h5 c2 b6 a3 d6 a2 Kd5 g2 e4 Qd7 b7 Na6 b8N Qa7 Kc6 Nc5 b5 Nb3 d7 Bd6 d8Q+ Qe7 d5 Bc5 h7 Ba3 b6 Nc5 h6 Ra4 e5+ Kf5 b7 f6 e6 Qf8 Kc7 Bd7 e7 Rd4 d6 Bb2 Rh5+ Kg6 Nd2 f5 Be2 f4 Nh3 g1R Nf3 Rg2 Nfg1 f3 Nc6 f2 b8Q f1R Qb7 Rdg4 Rf5 Rh4 Qda8 Nd3 Kd8 Bc3 Bb2 Nf6 Qc1 Be6 d7 Rg8 h8Q Be1 Bd4 Qf7 Rf8 Nd5 e8B Rg3 Bb2 Rhf4 Qc3 Nc7 Rc5 Rd4 Bh5+ Kf6 Ne7 Bc4 Rb1 a1B Qg2 Rf2 Qab7 Na8 Rf5+ Ke6 Rc5 Qf4 Rff5 Re4 Qa3 Rf1 Bh8 Bg7 Rb2 Rf2 Qc3 Rff3 Qe3 c1Q Rf2 Qc2 Qc1 Qa4 Qbb4 Qc6 Qbb1 Ba6 Qb6 Rb4 Qb7 Bc4 Rf7 Qa4 Kc8 Qd4 Rf8 Rf5 Rf7 Qf4 d8N+ Kd6 Ne6 Qc6+ Kd8 Rf6 Neg5 Rf5 Nh7 Ke6 Nd5 Rf6 Nf8+ Kf5 Bd7+ Qe6 Bg6+ Kg4 Ne7 Kh4 Bh5 Rf5 Rf6 Qc6 Rf7 Rd5 Rf6 Rd6 Rff5 Rf6 Qd4 Rf7 Qde3 Ne5 Qec3 Nd3
3R1Q1b/1rQK3B/qB1nP3/1BBN2k1/3N2N1/2R3bn/R1b1n1rQ/2R3qn w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 g5 e4 c5 h4 f5 d4 a5 b4 c4 b6 c3 e6 Kf6 b5 a4 e7 g4 Kf4 g3 e8B g2 h6 c2 e5+ Ke7 d6+ Ke6 h7 a3 d7 a2 h5 Bb7 d5+ Ke7 e6 Kf6 d6 Ra5 h6 Ra8 Bg6 Ne7 Qd2 Ra6 Nf3 g1N Ne5 Ra8 Nc3 Ra6 Qh2 Qe8 d8R Ra3 d7 Nbc6 Be3 c1N Bc5 Rg8 h8R Na5 h7 Be4 b7 Bc2 b8N Rb3 b6 Nb7 Nbc6 Nd6 b7 Qf7 b8B Qg7 Bc7 Rb7 B7b6 Nce2+ Ke3 Rc7 Nd5+ Kg5 Nd4 Nh3 Ng4 Rb7 Rc1 a1B Ra8 Bb1 d8Q Bc2 Ra2 f4+ Kf3 Bc3 Qc7 Nef5 Rg1 Nfg3 Be4 Nh1 Rg3 Ba1 Bg6 Nc3 Bb5 Ne2 Bf5 Qg6 Be4 Bh6 Bf5 Rg7 Rd8 Bc3 h8Q Be1 Rg2 Bg3 Qf8 Rg8 Ra3 Bg7 Rc3 Bh8 Bfd3 Nf5 Ke4 f3 Qc8 f2 Qc7 f1Q Rf2 Nef4 Rd2 Rg7 Ke5 Nd6 Rg2 Qg1 Bf5 Qe8 Bh7 Qc6 Rf2 Ba4 Ra2 Bc2 Ba7 Qa6 Bab6 Kh5 Kf6 Kh4 Ke5 Ne2+ Kf6 Rg6+ Ke7 Kg5 Kd7 Rf6 Raa3 Rf2 Ra2 Rg2
1R4N1/Qn5B/3P1KNQ/BRnq2b1/3rNNbn/8/1r1R1b1b/1B1BQq1k w - - 0 1 illegal: No possible last move
2BqN1QN/rqr5/2PnQQNQ/2BR2R1/bbr1b1R1/2r4n/4k3/1R2B1K1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 Kf6 c4 Ke5 f4+ Ke4 Kf2 a5 h6 d5 b6 e5 h5 g5 b5 a4 h7 d4 h6 a3 f6 g4 c6 a2 c5 d3 b7 d2 f7 Qd6 f5 Ne7 b6 Qc7 f6 Bg7 f8Q Ng8 f7 Ra4 Nc3+ Kf4 Rh4 e4 Qb3 Na6 b8R Nf6 b7 Rb4 Nb5 Rc4 Rb1 a1R Nf3 e3+ Kg1 d1B Ne5 Ne8 Nd6 Bf5 Ng6+ Kf3 Bd2 g3 Be1 g2 Rg4 Bc3 Rd8 e2 b8Q Qb7 c7 Nb4 c8R Be4 c6 Ra7 Rg5 Rg8 h8Q Rg7 h7 Nd5 Qfg8 Ke3 f8B Rc7 Qf6 Nf4 h8N Kd3 Qa2 Bb4 Qh7 Ke3 Qh6 Ba4 Rd7 Rc3 Qae6 Rc4 Rg7 Rc3 Rd8 Nh3+ Kh2 g1R Qbc8 Nf2 Bh3 Rg4 Qg8 Rh4 Qce6 Kd3 Kg1 Ke3 Nc8 Rf4 Rdd5 Nd6 Bf5 Nh3+ Kh2 Nb5 Nd6 Rg4 Ne8 Nd6 Qef7 Rh4 Bc8 Rf4 Q7e6 Kf3 Bf2 e1Q Rg4 Qd1 Be1 Ke2 Rgg5 Nc4 Bc5 Nd6 Rg4 Rff3 Kg2 Rc4 Kh1 Nf2+ Kg1 Rfc3 Nh4 Qd3 R7g5 Qd1 N4g6 Qd4 Qff8 Qf6 Qfg7 Qd8 Qgf6 Nh3+
3kB1R1/NnR1b3/1PQn1q2/6rq/1B3r2/Qq1B4/BNR1bK1N/b1q2NQ1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 c5 b4 h5 g4 a5 d4 e5 g6 a4 d6 a3 f6 c4 b6 e4 f5 e3 b5 h4 b7 a2 d5 h3 g5 c3 g7 h2 f7+ Kd7 f6 c2 b6 e2 g6 Qe8 Bd2 c1Q Nf3 Qe6 Bb4 Ra5 Nbd2 Rh4 Kf2 Qb2 Rc1 a1Q Rc7+ Kd8 d7 Bd6 f8N Qf5 f7 Qd3 Ne6+ Ke7 d8N+ Bd7 Nc6+ Kf6 Nf4 Be8 f8Q+ Bf7 Na7 Nh6 g8B Qda3 g7 Qac1 Nd3 Na6 b8Q Rf4 Qbe8 Be7 d6 Qab3 d7 Nf5 d8R Nc5 Qc6+ Nd6 Rdc8 Nb7 Rg1 Q2c3 Nb2 h1Q Bh7 Qe5 g8B Qhh5 Bd3 Ke6 Bg2 Qf6 Nf1 Rg5 Bh1 Qcc2 Qa1 Qcc4 Qg7 Qc1 Qa3 e1B+ Ke2 Qhg6 N3h2 Qh5+ Bf3 Bc3 Kf2 Ke5 Rg2 Bd5 Bf7 Be4 Rg8 Kf5 Be8 Ke6 Kg1 Bd5 Bfe2 Bf3 Kf2 Be5 Bb1 Bc3 Bed3 Be5 Nc4 Ba1 Ba2 Qf8 Qd4 Qf6 Nb2 Bf8 Bd7+ Ke7 Be8+ Kd8 Kg1 Ra5 Rc2 Be7 Kf2 Rb5 Qdc5 Ra5 Qg5 Rc5 Qg2 Rg5 Qg1 Be2+
2qBk3/5r1P/Nb2nQ2/QnR3r1/B2Rb3/QqBQ2Nb/5N2/2RrRr1K w - - 0 1 illegal: No possible last move
4nbN1/1B2PNn1/1QN2R2/4B2r/rq2q1KR/2r1BQ1R/rR2bqQ1/3k1N2 w - - 0 1 illegal: No possible last move
Br5R/kPRN4/2Rr2b1/1rn2BN1/5q1N/B2bb3/Q2nQ2B/rq2NQK1 w - - 0 1 illegal: No possible last move
r2N2k1/4brbN/4n2B/BQ1N2RQ/2bBRb1R/q1QB4/P2R4/2Kbb2n w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kf7 d4 c5 Kd2 b5 h4 e5 d6 g5 h6 b4 d5 e4 h7 g4 f6 g3 d7 g2 d6 b3 a6 c4 h5 b2 a7 Nh6 f5 Ng8 h6 Bb7 Rh4 Qe7 d8N+ Ke8 f7+ Kd7 f6 Bd5 Nc3 b1B Bd3 Bc2 Qh5 Bg7 f8R Ba4 f7 Nc6 Nf3 g1B Ng5 Nf6 Re8 Rf8 h8B Bd1 h7 Nd4 Bb2 e3+ Kc1 Be6 Nd5 e2 Bc3 e1B Ba5 c3 Rb1 c2 Rb5 Ng4 Rc5 Rg8 f8B Nf2 Rb5 Nh1 Rc5 Rc8 a8Q Rc7 Qa6 Bf7 Qb7 Ne6 Qb1 B1d4 Rb5 Bgf6 Bh6 Qf8 B8g7 Be7 h8Q Ra7 Bf6 Rg7 Rc5 Ra8 Nh7 Bg8 Qb4 Rf7 Qg7 Ba1 Qgg5 Be5 Qbd2 Bf4 Bd4 Be5 Qc3 Bg7 Kb2 c1B+ Kb1 Ba3 Rb5 Bc5 Kc1 Ba7 Rc5 Bb8 Qe5 Bc7 Qee2 Bb8 Qeb2 Bc7 Qb5+ Kc8 Bc2 Rf2 Bde3 Bg5 Nf4 Nd4 Nc6+ Kd7 Re4 Bc4 Rd5 Ne6 Rd2 Bd5 Bd3 Bc4 Bd4 Bb8 Qe2 Ke8 d7+ Kf7 d8R Bbe5 Rd5 Kg8 Qh5 Bc7 Nd8 Qa3+ Qbb2 Be7 Rg5 Be5 Nd5 Rf3 Nc6 Rf7 Nd8 Qa4 Qb8 Bf4 Qb5 Qa3+
5n1B/1Bb1r2b/3Bk3/Q2NNR2/1K4R1/3pQ1nn/2P2QBq/r1QR1rNq w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 e5 h4 g5 b4 a5 f4 d5 h6 g4 h5 g3 c6 g2 f6 a4 c7 e4 f5 a3 h7 a2 h6 e3 b6 e2 b5 e1N b7 Qe7 b6 Ra4 Bf4 Rd4 Bd6 Qe6 Qc1 Qe5 Rh4 Be7 Rg4 Nc6 b8Q Na7 b7 Rd1+ Kb4 d4 Nc3 d3 Qa8 Bd8 b8Q Ne7 Qb6 Ng6 Qbe3 Qh2 Nd5 Nb5 Qa5 Re8 h8B Nd4 h7 Nef3 Rb1 Bd7 c8B Re7 Bb7 Bc7 Ra1 Ng5 Rb1 Ke8 f7+ Kd8 f8N a1R f6 Ne2 f7 Bf5 Nd7 Ng3 Ne5 Nf8 Qf2 Nh3 Qce3 Re1 Rd1 Nf4 Ne2 g1Q Bg2 Qgh1 Ng1 Nh3 Qc1 Rf1 Qfe3 Ne6 f8R+ Re8 Rf6 Re7 Rf7 Be4 Rf5 Ke8 Bg7 Kd8 h8Q+ Nf8 Qh4 Ke8 Bh8 Kd8 Rf7 Bh7 Qf6 Ke8 Qff2 Kd8 Rf5 Ke8 Nc6 Kd7 Ne5+ Ke6
1q3Bbn/2B4Q/1K1R2NQ/4rBN1/2k1b2b/1np1Rr2/4qN1P/1BQNR2n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 b4 g5 d4 f5 b6 a5 e6 Kd6 b5 g4 e7 c4 e8Q g3 h6 a4 b7 a3 h7 a2 b6 g2 Nh3 g1Q+ Nf2 Bg7 Qe4 Qe8 Bh3 Qd8 Ba3+ Kd7 d6 Ra7 d5 Bb2 Nc3 Qg4 Kd4 f4 Kc5 f3 Qc1 Nf6 Re1 Rf8 h8N Qe7 Ncd1 c3 Qh7 Qf7 e4 Nc6 b8B Bb7 e5 Nh5 Re3 Nd8 Ng6 Ng3 Bc7 Nh1 Kb5 Ba8 b7 Ra5+ Kb6 Qe6 Qh6 Qf4 b8Q Nf7 Qa7 Nh8 Bf5 Bc6 Rb1 a1N Bb4 Nb3 Bc5 Ke8 d7+ Kf7 d8R Ba3 d6 Be4 Qb7 Qc4 d7 Qe2 e6+ Kf6 Bb4 Re5 e7 Rf7 e8B Qg3 Nh3 f2 Bf8 f1B Nhf2 Be7 Ra1 Bd5 Bb1 Ke6 Qa7 Rf3 Bf7+ Kf6 Be6 Bg2 Bef5 Bg8 Qb7 Kf7 Qe4 Bf6 Qeh4 Bg5 Qh7+ Kf6 Q4h6 Qf4 Re8 Bh4 d8N Qg3 Nf7 Qf4 Rd8 Qg3 Bfe4 Ke6 Rd2 Qf4 Bed3 Kd5 Bf5+ Kc4 Ng5 Rh3 Rd6 Be4 Ra2 Rf3 Rb2 Qe1 Rbe2 Qd2 Re1 Qe2 Bh3 Qf7 Bc8 Qe8 Bf5 Qb8+
2BRN2N/Qq5b/1n1b1r1k/1RB5/2NKn3/Bp3bqB/2Q1Q2P/Qn2Rr2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 f5 Ke3 Kf7 d4 c5 a4 b5 h6 Kg6 e6 b4 d6 c4 d5 f4+ Kd4 b3 e4 f3 d7 c3 e5 c2 d6 f2 h7 Qg5 d8B Qe7 d7 Nh6 a6 Qf6 e7 Ra7 e8Q+ Nf7 a5 Qg5 e6 Qe7 Bh3 f1B Nd2 Bg2 Bb6 Bgb7 d8R Bg2 Ne2 Kh6 Re1 g5 Nc4 Nd6 Bc5 Qb7 e7 Nd7 Nc3 Rg8 h8N Bf3 Nd5 Ra8 Bb2 c1N a7 g4 a6 g3 Qc2 g2 Ra5 Na2 Rb5 Nc3 Nc7 g1Q+ Qf2 Qg6 Qc2 Qg5 Bc1 Nb1 Qf7 Qb8 e8Q Bcb7 Qe3 Bbe4 Qee2 Bh7 Ne8 Ne4 Qe7 Qc7 Qf7 Rb8 a8B Rb6 a7 Rf6 Bb7 Bd6 a8Q Nb6 Qa1 Qf4 Qd7 Rg1 B1a3 Rf1 Bc8 Qg3 Qe7 Qc6 Qa7 Qb7
K1N5/1N1BBn1k/3N1n1r/q1bQR1R1/r2b1pPq/4Q2Q/3B4/Qb1Bn1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Ke3 Kf7 Kd4 Kg7 g4 h5 b4 a5 e4 c6 b6 a4 e6 f4 b7 h4 g6 h3 e5 h2 e7 a3 Kc5 a2 d4 Kh6 b5 Ra7 b6 Nf6 g7 Qe8 g8Q Bf5 d6 Be4 e6 Bd5 d7 Rh7 d8B Be4 d5 Bc2 d6 Bf5 d7 Nh5 Nc3 Ra8 Nf3 Ng3 Ne4 Qf7 Be2 Bg6 Nd4 Nf1 Nb5 Ra4 Rg1 h1Q Bd2 Qh3 Ned6 Ra7 e8R Qh4 e7 Ng3 Nc8 Ra4 Nbd6 Qf5+ Qd5 Nh5 Qe1 Bg7 Bd1 Nf6 Qe3 Bh8 Rb1 a1N Rb5 Nc2 Rg8 Qe5 e8B Ne1 Be7 Bb1 Rg5 Bg7 d8N Qc3+ Nc4 Qa5 Bd7 Bh8 Kd6 c5 Kc7 Nc6 b8Q Ne5 Kb7 Nf7 N4d6 c4 Qa7 c3 Ka8 c2 b7 c1B b8Q Ba3 N8b7 Bc5 Qa6 Ba7 Qc7 Bg7 Qcc3 Bh8 Re5 Kg6 Qh3 Rh6 Qb6 Kh7 Qbe3 Ng8 Rg5 Bhd4 Qa1 Nf6 Qda2 Qb4 Rbe5 Qa5 Qd5 Bac5+
n3QbN1/n1N1BR2/3B1RB1/RQrqBNkP/4r1b1/K2br2p/8/Q2R3q w - - 0 1 illegal: No proof kernel
1Nb2qN1/1r4n1/1rK1nnk1/2Q1BpNR/1B1P4/2BQR2Q/1bB3r1/Q1q3R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Kf3 a5 Ke4 g5 h4 g4 b4 a4 e6 c4 d6 f5+ Kd5 c3 e4 g3 e5 a3 b6 g2 b5 a2 b7 c2 e7 Kf7 e8Q+ Kg7 b6 Rh7 d7 Qe7 d8Q Rh8 e6 Rh7 h6+ Kf6 h5 Ra5+ Qb5 Rh8 h7 Nh6 Nh3 g1R Ng5 Ng4 h6 Rg8 h8B+ Kg6 h7 Nh6 Bd3 Ra6 Nc3 Rg3 Nce4 Qf7 Ba3 c1N Bc2 Bc5 Bc3 Nb3 h8Q Nc6 b8B Qf8 b7 Rg7 e7 Ra5 e8R Nbd4 Nf6 Rg2 Re3 Ng8 Be5 Bb4 b8N Rb7 Qc5 Rab5 Rc1 a1Q Qa5 Nd8 d3 Nh6 Ng8 Ng4 Qd2 Qb1 Rcg1 Qc1 Rhh3 Ne2 d4 Ng3 Rh2 Nh5 Qd3 Ne6 Kc6 Nhg7 Qh4 Nf6 Qg3 Qd8 Rh5 Qe7 Qh3 Qf8 Ba1 Bc3 Bb4 Bb2 Qa4 Ba3 Bac3 Bb2 Qa1 R5b6+
7R/r1NnkBQ1/4B1nB/1Qpqb1bQ/2P1R1Rq/2BQ4/1KNq4/2N1n2r w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Be7 g4 Bb7 h5 Be4 Ra5 Bd3 Ra1 Bg6 hxg6 Bf8 Kd2 d5 Kc3 h5 e4 f5 b4 a5 g7 c5 b6 h4 e6 h3 e5 a4 b5 f4 b7 f3 g6 h2 g5 a3 e7 a2 b6 d4+ Kb2 d3 c4 f2 Na3 d2 Nc2 Qd3 Ne2 Nf6 g8R Qf3 g7 Ne4 g6 Na6 b8Q+ Kd7 e8N Qd3 e6+ Ke7 b7 Qe3 Nc7 Ra7 Bh3 f1N Bg4 Kd6 e7 Ng5 e8Q Nf7 Be6 Ne5 Qb5 Qf3 Q8e8 Be7 b8B Ne3 Re1 Rh5 Rh8 h1Q g8B Bg5 g7 Ng6 Bgf7 Qh4 g8Q Ng2 Qg7 Qd5 Rg1 Ne1 Rg4 Nf3 Qf1 d1Q Be3 Rh6 Nc1 Q1d2 Qd3 Ne1 Bd4 Rh7 Bc3 Rh5 Qeg8 Ke7 Q8h7 Qhf2 Rb1 Rh1 Qh5 Qf6 Na8 Qfd4 Bf4 Nb8 Nc7 Nd7 Ra1 Bh4 Bh6 Bg5 Nb3 Q4f2 Rd1 Qh4 Nc1 Nf3 Re1 a1B+ Kb3 Bb2 Ree4 Ba1 Ba5 Bd4 Bc3 Be5 Kb2 Ne1
1rr2B2/2B1QnRB/5qb1/P3Q1NN/1RKBpQnk/q7/QbN1R3/2nq4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kd3 Kf6 f4 c5 a4 e5 h4 b5 a6 g5 d6 b4 h6 g4 h5 g3 d7 b3 h7 b2 a7 g2 a5 Ne7 h6 Bb7 Kc4 Qb6 d8B Nc6 d4 Nb4 d5 Nc2 d6 Bg7 d7 Rb8 a8R Rf8 h8Q Bf3 h7 Nd4 Rh4 Bh5 Ne2 g1Q Na3 b1Q Be3 Ne6 Qa4 Bg4 Bd4 Qe3 Bc7 Rbd8 Ng3 Ng6 Nc2 Bh3 Qa2 Rfe8 Nh5+ Kf7 f6 Bf5 Bd3 Qd1 Ra7 Be4 f5 Rc8 d8Q Ng5 Rh2 Qec1 Rb1 Qa3 Rb4 Rf8 Re2 Qe6+ Kb5 c4 Qd6 c3 Qc5 Ke8 f7+ Kd7 Rb7 Qf6 Kc4 Rg8 Qa7 Ke7 f8N Nf7 Ne6 Rb8 Ng5 Rgc8 Qg8 Bh1 h8Q Be4 Ne1 c2 Qf8+ Kd7 Qac5 c1N Qh7 Bh8 Qfh6 Bg7 Qd5+ Ke7 Nc2 Nh4 Qb5 Nf3 Qd5 Nh2 Qc5+ Qd6 Ra7 Ng4 f6+ Kd7 Qd5 Bg6 Be4 Ke8 Bf5 e4 Qe5+ Kf8 Rab7 Nd8 f7 Qf6 Be6 Ke7 f8B+ Ke8 Bg8+ Kd7 Qh8 Nf7 Qc5 Ke8 Bh7 Kd7 Nh3 Ke6 Qe7+ Kf5 Qe3 Nf2 Ng5 Kg4 Ra7 Kh4 Qf4+ Ng4 Rab7 Qd6 Ra7 Be5 Qhf6 Qd8 Q6f5 Bh8 Q5e5 Qd6 Rab7 Qf6 Qb5 Qa4 Bc3 Qa6 Qe8 Rd8 Bb6 Qa3 Rd7 Bf6 Bc7 Nh6 Rg7 Rdc8 Qe7 Nf7 Bb2 Qad6 Qd5 Bc3 Qde5 Qf6 Ba1 Be1 Bd4 Bc3 Rb3 Ba1 Rb4 Bb2
1kq1b1RQ/RNr1Q3/4bPn1/2q1r2K/3B1R2/1p4bN/B1n1NB1R/1NQ2n2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 h5 a4 e5 g4 b5 d4 c5 f6 Kc7 g6 b4 g7 c4 a6 c3 g5 h4 a7 c2 a5 h3 d6+ Kb7 d5 h2 g6 Qd7 f7 Ne7 g8R Rh7 g7 Qe8 a6+ Kb6 d7 Kc7 Kg4 e4 f4 e3 d6+ Kb6 f5 e2 d8N e1Q d7 Kc7 f6 Ng6 Nb7 Q1e7 Bc4 Qc5 Nh3 Qee3 Ba2 b3 Bb2 c1N Bd4 Be7 f8B Ne2 Qc1 Qc6 Rf1 h1B Rf4 Bg2 Rh8 Ng3 g8R Bd6 Be7 Be5 Bec5 Nf1 Kg5 Qf2 d8N Bf5 Bb6+ Kc8 Bbc5 Re7 Kh5 Rc7 Ne6+ Qe8 Rh7 Nc6 Bb6 Rb8 a8Q Nb4 a7 Nc2 Rhh8 Qg1 Bf2 Bd6 Nd4 Bc6 Ne2 Qd8 Bbd4 Be8 Rh4 Bg3 Rf4 Rc5 Rh6 Re5 Rhh8 Kc7 Rh6 Rc8 Qb8+ Kc6 a8Q Rc7 Qba7 Qc8 Rhh8 Rd7 Qaa3 Kc7 Qf8 Rg7 Qaa3 Rd7 Qae7 Kb8 Qfg7 Rc7 Rh6 Bc6 Qh8 Be8 Bc3 Qd7 Bfe1 Qb5 Kg5 Qd7 Nf2 Rd5 Rh2 Rc8 Kh5 Bf7 Nh3 Qc5 Bd4 Re5 Bef2 Qe6 Nbc3 Be8 Bb1 Rc6 Ra7 Qc8 Ba2 Rc7 Nb1 Be6+
k1r2qqb/1b1N1RR1/2p1B1N1/N5Q1/1r1NKB1R/1r1n1Bb1/2P5/n1QQ3Q w - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 a5 Kd3 d5 b4 Kd7 f4 g5 h4 g4 f6 a4 h6 c6 h7 Kc7 h5 Kb7 f7 g3 f5 d4 b6 a3 b5 g2 f6 a2 h6 Ra6 e6 Qd6 e7 Qe5 e8B Nd7 Na3 Bd6 f8R Qc5 f7 Qb4 Bf4 Nb8 Nf3 g1B Bg2 Be3 Bd7 Be7 Nc4 Ra3+ Ke4 d3 Nd4 d2 Bf3 Rb3 Na5+ Ka8 Rh4 Bb7 Be6 Bd6 Qc1 Ne7 Rg8 d1Q f8Q Qc4 Qd8 Bf2 Rg7 Ng6 Qg5 Rc8 h8N Qdf1 h7 Ne5 Ng6 Na6 h8Q Bg3 Qhh6 Qf2 Qh1 Nd3 Rf1 a1R Qhh5 Ra4 Qhg4 Kb8 Q4h5 Ba8 b7 Be5 Qhg4 Ka7 b8N+ Bb7 b6+ Ka8 Nd7 Rab4 Q4h5 Qd2 Rf2 Qc5 Qhg4 Qf8 Qc1 Qg8 Qh3 Qc3 Qhh1 Qc5 Rf1 Qcf8 Rf2 Nc7 Rf1 Nb5 Rf2 Ba6 b7+ Ka7 Qcd1 Ra4 Bfg4 Rc4 Rgh7 Rb2 Bd2 Bc7 Rff7 Bce5 Bf4 Bh8 Rhg7 Rc3 Nf5 Nd4 Bh5 Nb3 Bf3 Na1 Nd4 Rb5 Bc7 Ra3 Qgc1 Rb4 Be5 Bc4 Bf4 Rab3 b8Q+ Ka6 Qe5 Ka7 Bd2 Ka8 Qg5 Ba6 Bf4 Bb7
n3q1B1/1bNQR3/bPpK1k1q/5r2/1BrNBR2/4b3/Q2nRr1N/3QR2B w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 a5 g4 h5 f4 h4 b4 a4 d4 a3 g6+ Kf6 b6 h3 b5 h2 g7 a2 d6 c6 b7 Qe7 g5+ Kf7 b6 Qd7 f6 Ne7 g8B+ Kg6 d5 Nf5 f7 Qc7 d7 Ra6 d8Q Rh3 d6 Nh6 f5+ Kg7 f6+ Kg6 d7 Raa3 Nd2 Ra6 Bd3 Qd6 Nb3 Be7 f8Q Ra8 f7 Ra5 Bd2 Rf3 Nd4 Ng4 Bb4 Na6 b8R Ne3 Rb7 Rf2 Ngf3 Nc7 Re1 h1B Re2 Bg2 Ra7 Bf1 Nh2 Na8 Bc2 Kh5 g6 Kg5 g7 Kf6 Qfe8 Nc4 f8R+ Kg5 Rf7 Qh6 Rf4 Bb7 Qf7 Bf6 Rb1 a1R Bh7 Be7 g8B R1a4 Qc7 Rb5 d8N Bc5 Qcd7 Rba5 Qfd5 Rb5 Bf5 Kf6 N8e6 Rba5 Nc7 Nd2+ Ke3 e4 Qa2 Be7 Bh3+ Rf5 Bg2 Bf8 Bh1 Bc5 Re1 Bc4 Rb2 Bca6 Bd3 Nf3 Rbe2 Nd2 Ba5 Rc4 Bc2 Ba3 Bb4 Bc1 Ndf3 Rc5 Kd4 e3 Be4 Re5 Bed5 Re4+ Kc5 Rc4+ Kd6 Nb1 Rb2 e2 Be4 Be3 Nd4 Nd2 Rg1 e1Q Rf1 Qe2 Re1 Nf1 Rc2 Qeh5 Rd2 Qe8 Rde2 Bb5 Ra5 B5a6 Re5 Nd2 Re7 Qb8 Bc3 Qbf8 Bb4 Qe8
rqQqR3/R1bK3B/1p2RNb1/N4N2/2bQ1Pr1/1B4N1/Q4Qqn/B1k1n3 w - - 0 1 illegal: No possible last move
k1BQ4/2q2R1P/rpRB1n2/4bq1Q/RNQnrNnN/1R2b2B/5B2/3b3K w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 e5 f4 c5 Kf2 Kc7 Kg2 g5 a4 b6 d6+ Kb7 h6 g4 f6 e4 d5 g3 f7 c4 a6+ Ka7 d7 c3 a5 e3 h5 e2 f5 e1Q h7 c2 f6 Qc3 d6 Nh6 Qd4 Bg7 f8R Qe7 d8N Qe8 f7 Bf5 d7 Qd3 Nd2 Qde3 Qc4 Qc5 Ndf3 Qc7 Ra3 Qd6 Nh4 Qde5 Nh3 Qa1 Nf4 Bd3 Be3 c1N Bf2 Qd4 Rb3 Nf5 h6 Rg8 h8Q Qa1 h7 Bb2 Qe5 Nd4 Qh5 Qe6 Rh2 Qg4 Kh1 Qf5 Bh3 Be2 Rg2 Qab1 Rg1 Nd3 Rc1 Bd1 Rcc3 Nbc6 Rc1 Ne7 Rc2 Rb8 Nc6+ Ka8 d8Q Rg4 a7 Nd5 Nb4 Nf6 Rcc3 Ne5 Rc1 Kb7 a8B+ Ka7 a6 Qbc2 Bd5 Ra8 Bb7 Bc3 Bc8 g2+ Kh2 g1B+ Kh1 Qcd3 Rc2 Qg3 Rc1 Rb8 Rc2 Ka8 a7 Rb7 Qb5 Bb2 Rc6 Re7 Qa6 Rg5 Qc4 Neg4 Rg8 Re5 f8B Re4 Bd6 Qc3 Rf8 Qc1 Bg3 Be3 Rf7 Rg8 Bf2 Rge8 Qh6 R8e5 Qg6 Ra5 Qh5 Ra6 Nhg2 Ra4 Qa6 Nc2 Rc5 Be5 Nh4 Nd4 Rcc7 Qc6 Qc4 Qb7 Rc6 Qc7 Bd7+ Kb7 a8R Ra1 Ra5 Ra2 Bc8+ Kb8 Rb5 Ra6 Ra5 Ka7 Ra4 Ka8
1b1Rb1Q1/1nr1QPQ1/2kq4/Q4R1B/1Kr1N2q/2n1N1b1/RB3BpB/4N2q w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 e5 f4 c5 d4 a5 Kd2 g5 Kc3 a4 d6 a3 b6 a2 b7 g4 f6 g3 b5 e4 f7 c4 d5 g2 b6 e3 f5 e2 f6 e1B+ Qd2 Ne7 h6 Rh7 h5 Bg3 Kb4 c3 Be2 c2 Na3 Bh4 Nc4 Qc7 Bb2 c1Q Nf3 Ng8 Ne3 Rh8 h7 Qd8 h6 Ra7 Ne1 Qd1 Rf1 Qc7 Bh5 Qe2 Rf5 Be7 f8Q Qc6 f7 Qf3 Qg7 Nf6 Bd4 Rd8 h8B Qf1 h7 Qf4 Qc3 Rg8 Qc5 Bf2 Qa5 Ne4 Bc5 Rd8 Qg8 Bfh4 Bb2 Bg3 h8Q Qh4 Qhg7 Bg5 Bcd4 B5f4 Bc5 Re8 Bcd4 Nc3 Bc5 Kd8 d7 Rf8 Bd4 Qd6+ Bc5 Ke7 d8R Nd7 b8N Rc7 b7 Re8 Na6 Rf8 Rd1 a1Q b8B Bb7 Rd2 Bc6 Ba3 Qd1 Ra2 Qc1 Bb2 Qa1 Nf3 Qah1 Ne1 Re8 Kc4 Be5+ Bd4 Nc5 Kb4 Nb7+ Nc5 Qd7 Ne4 Qd6+ Bc5 Rf8 Re8+ Kd7 Rc8 Qdf6 d6 Ba4 Re8 Kc6 d7 Qd6 d8Q Bb5 Qdf6 Bef4 Rd8 Re8 Kb3 Re5 Bd4 Rc5 Qe7 Bc4+ Ka3 Be6 Kb4 Bd7 N3c2 Be8 Bf2 Be5 Ne3 Qd2 Ba7 Rd5 Ng4 Rcd7 Bfd4 Bb8 Bg1 Rc7 Baf2 Rc5 Ne3 Qd6 Bh2 Rc4+
Q2QN2Q/1pNn3B/R1P2bqR/b3n1Rr/6bn/B1B3r1/k2q1Q1B/N2K4 w - - 0 1 illegal: No possible last move
k4nr1/P3N1B1/BbqR4/RN1br1R1/1Q2Rn1p/N3Q1K1/1r1q1B1B/3Q2n1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 a4 e5 f4 b5 Kf2 c5 g4 Kc7 d6+ Kb7 g6 h5 g5 b4 a6+ Ka7 a5 c4 g7 e4 f6 b3 f5 c3 g6 e3+ Kg3 b2 f7 c2 d5 e2 f6 e1N d7 Bb7 d6 Nf3 Bf4 c1Q Ne2 Ng1 Na3 b1R Nd4 Qcc8 Rh4 Qdc7 d8B Be7 f8B Qc1 f7 Bf3 d7 Nf6 g8R Q1c7 g7 Nc6 Ndb5+ Kb8 a7+ Kb7 a6+ Kb6 Be2 Rb8 a8Q Nd4 a7 Rb2 Qe4 Nh7 Qe3 Kb7 Bc4 Qc6 Bb6 Qe8 d8R Ne6 Rd6 Qed7 Be5 Bf6 Re4 Bd8 Red4 Qdc8 Nc2 Ra8 Kh2 Nc7 Qee2 Nf6 Nc3 Nd7 Ra5 Rh7 Na3 Qb5 Qf2 Bc6 Re4 Nd5 Qfe2 Rb8 Bf2 Bb6 Qe3 Qb4 Ba6+ Ka8 Ncb5 Qd2 Kg2 Qb7 Bh2 Nf4+ Kg3 Qc8 Rh8 Rh6 g8N Re6 Ne7 Re5 Rg8 Bb7 Rg5 Qcc3 Bg7 Rg8 Ng6 Qc4 f8Q+ Qc8 Re6 Bd5 Qb4 Qc6 Ne7 Nf8 Rd6 h4+
1R1nb3/p1RB1r1k/4PRbr/bq3BQ1/2NqNQn1/7B/5Qq1/3NB1KR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 b4 c5 d4 f5 e4 Kf7 g4 Kg6 e6 c4 e5 c3 b6 h4 b7 h3 e7 h2 e8B+ Kh7 b5 f4 b6 f3 g6+ Kg7 d6 c2 g5 Qc7 d5 Rh5 d7 Rh6 d8Q Bb4 e6 Qf4 d6 Ba3 d7 Qc7 Qd2 Na6 b8Q Ne7 b7 Rh3 Nc3 Qa5 Qbf4 Rb8 Nd1 Rh8 Bh3 Ng8 Ne2 Rh6 Ng3 Ra8 b8R Nc5 Ne4 Nb7 Ra2 Kh8 g7+ Kh7 Qdf6 Bb4 d8N Qb5 Nc6 Bc3 Na5 Bd7 Nc4 Ba5 Qe7 Bc6 Bd7 Nd8 Ba3 c1Q Bb4 Qa3 Rc2 Qb2 Bc3 Nf6 g8R+ Nf7 Kf1 f2 Rg6 Ng4 Rf6 Qa1 Qc5 Nd8 Qde3 Qab2 Be1 Qd4 g6+ Kg8 g7 Kh7 Bc8 Be8 Qcg5 Bg6 Bd7 Be8 Rg1 h1Q Qd2 Qf3 g8B+ Kh8 Bf7 Kh7 Bh5 Bg6 Rh1 Be8 Rb6 Rc8 Rb8 Rc7 Qde3 Qe2+ Kg2 f1B+ Kg1 Qf3 Qf2 Bd3 Bg6+ Kh8 Bc8 Rf7 Bd7 Kg8 Ng3 Bf5 Ne4 Kh8 Bh7 Bg6 Rc3 Bh5 Bf5 Bg6 Na3 Kg7 Rc7 Kh7 Nc4 Qg2+
N4K1N/pn2R1n1/Q2P1Q2/q4q1k/1Nb1QQR1/2b1B2B/2rR1b1q/B1rR4 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 g5 Ke4 e5 d4 c5 b4 c4 h4 g4 f4 g3 b6 g2 d6 c3 Kd5 e4 b5 c2 d7 e3 h6 e2 h7 e1B f6 Kg6 Ke6 Na6 f7 Bc5 f8Q Bd6 d5 Bc5 b7 Be3 b8R Qc7 b6 Qc6+ Qd6 Bg3 h5+ Kh6 Kf7+ Nf6 d8R Bgf2 f5 Bd2 b7 Nb4 Ra4 Be1 Ne2 g1Q Nf4 Qgc5 Bh3 Q6b5 Na3 Qf2 Qf3 Qd4 Nc4 Qa5 Nd3 Qab6 Qe4 Bf4 Be3 Na6 Nb4 Rg8 h8B Qbc5 Nb6 Rg1 Kf8 c1Q Re8 Rg2 Re7 Bf2 Rd1 Be6 Rd8 Qe5 b8Q Ne8 f6 Qb1 f7 Ng7 Qbc7 Rc8 Na8 Kg5 h6 Qa5 h7 Nc5 Qa6 Nb7 Qc3 Qb8 Qf6+ Kh5 Rd2 Be5 Qff4 Ne8 Bf6 Rc3 h8N Rc1 Rd1 Bc3 Bfd4 Bce1 Ba1 Bc3 Ra2 Qc8 d6 Qc2 Rb2 Bg3 Kg8 Bc4 Ra2 Bd3 f8Q Qcf5 Qf6 Qf2 Kf7 Qg1 Rb8 Qh2 Rb2 Re2 Rd8 Bf2 Rb8 Ng7 Rg8 Ne6 Rg4 Ng7 Kf8 Bb5 Rb3 Ra2 Rb2 Bc4 Rbd2 Rac2
1QB1QN1b/4P3/N1Q1Rp1n/1K1rNB2/3b3n/r3Q3/1bR4B/bkBq1b1R w - - 0 1 illegal: No possible last move
1k3r1R/1b3qR1/RbnK4/N3NBn1/1N2b3/B1Q4B/r1Qpn1P1/1bB3RQ w - - 0 1 illegal: No proof kernel
q4Q2/3NnnNB/1rRb2N1/r1B5/2b4R/QR2nP2/b2p3R/B1bk1KQN w - - 0 1 illegal: No possible last move
QNb3Q1/2n2Rb1/N1B1Q1q1/3B1Nr1/r1RPb1pN/3r2b1/1B1n4/2Q1RK1k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 e4 f5 b6 c5 b7 a4 h6 a3 b5 c4 h5 c3 d6+ Ke6 d7 g4 b6 f4 h7 a2 h6 c2 Bb2 c1R Bc4+ Ke7 e6 Kf6 e7 Kg5 e8B f3 e5 Kf4 e6 Kg3 e7 Kg2 Nd2 Ra6 Ne2 Nc6 b8N Rb1 b7 Ra8 Na6 Qb6 d8R Na5 b8N Qg6 Bd5 Nf6 Qc1 Nb3 Rd7 Bg7 Ng3 Rg8 h8Q Ra7 h7 Ra8 Bdf7 Nd5 Nf5 Nc7 Bd5 Ra7 Rh3 Kg1 Rg3+ Kh1 Kf1 Ra8 Rg2 f2 Nf3 Ra7 N3h4 Nd2+ Ke2+ f1B+ Kf2 Rf8 Qg8 Rf7 Ke1 Bd3 h8Q Be4 Rg3 Ra8 Rc3 Rf8 Qe6 Rg8 Rc4 Ra7 Nc5 Ra3 Nca6 Rd3 Qh7 Rh8 Qhg8 Rh5 Rd8 Rg5 Bec6 Kh2 e8Q Kh1 Qd1 Rc1 Rd7 Rcc3 Qef8 Ra3 Qc1 Ra4 Rb1 a1B Rf7 Bf3 Qb4 Be4 Qb7 Nb3 Qa8 Nd2 Ba3 Bc3 Bb2 Nf3+ Kf1 Be1 Qc2 Bf2 Re1 Bg3 Qc1 Nd2+
k3B1KQ/8/r3NR1P/2bqpR2/3nQQQr/r1nn1r2/1N2RB1B/3BNb2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 Kd7 Ke5 Kc7 h4 Kb7 b4 a5 c4 d4 f4 d3 h6 g4 b6 a4 h5 g3 f6 d2 f5 g2 h7 a3 f7 a2 b5 e6 f6 Na6 h6 Bg7 f8N Qd3 c6+ Kb8 c5 Ne7 c7+ Kb7 Qc2 d1R Rh2 Ra7 c6+ Ka8 Na3 Qg6 Qe4 Rd4 Be2 Bd7 c8B Rg8 h8Q Rb4 c7+ Rb7 Nc4 Qg4 Nf3 g1R Bd1 Be8 Ne1 Bg6 Be3 Rg3 Bf2 Re3 Bd7 Rb2 Be8 Rb4 Nb2 Nd5 c8Q+ Rb8 Rc1 a1N Rc6 Nb3 Rc5 Rf3 b7+ Ka7 Kd6 Qg5 f7 Nc3 Rf5+ Nd4 Rg2 Qh5 Ke7 Ra8 b8R Rc4 Rb6 Nb4 Rd6 Be5 Qd7+ Kb8 b6 Ra3 b7 Nd3 Rc6 Ka7 b8B+ Ka8 Bc7 Bg7 Bh2 e5 Ne6 Bf8+ Kf6 Bc5 f8Q Rca4 Qdg7 Ra6 Qff7 Bh7 Qgg4 Rf8 Kg7 Qh3 Bhg1 Qh1 Bh2 Rh3 Qf6 Rh4 Qfg5 Bg6 Q5f4 Rf6 Kg8 Bh5 Qgg3 Be2 Qgg4 Bf1 Rg3 R3a4 Re3 Ra3 Re2 Rf7 Qee3 Qd5 Qee4 Ncb5 Nf8 Nc3 Rcf6 Ba7 Ne6 Bb6 Bea4 Bc5 Be8 Nc1 Qfe3 Nd3 Rh5 Rh7 Rf8 Rf7 Qeg3 Rf3 Rf6 Re3 Q3f4 Rg3 Rhf5 Rf3
3KB2b/2NB2QB/rB5p/2n1Qr2/b2Q2NN/P2R3R/2k1qrN1/b2bn2R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 b5 f4 c5 d4 h6 a6 e6 a3+ Ka5 f6 c4 a7 b4 g6 c3 f5 c2 d6 Ka4 f7 Kb3 d7 Bc5 f8Q Bb6 Kd6 e5 d5 e4 g5 e3 g7 e2 g6 e1B f6 Bd4 f7 Ne7 g8N Bg7 Qe2 Na6 Rh3+ Bec3 Nf3 Nc6 Nh4 Bf6 g7 Nc7 Nd2+ Ka4 Qe5 b3 Ndf3 b2 Be3 Kb3 Bb5 c1R Bb6 b1B Ng2 Qe8 d8Q Rc2 Nfh4 Bg5 Nf6 Rb2 g8B Bg6 Rah1 Na6 Qg7 Bg4 f8N Ncb4 Bh7 Bd1 Ng4 Rf2 Ne6 Kc2 Bd7 Nc5 Kc7 Nbd3 d6 Ba1 Qdf6 Be3 Qff4 Qe7 Qfd4 Raf8 a8B Be8 Bae4 R8f5 Bc6 Ne1 Kc8 Bd2 Nc7 Bdc3 Bb5 Qe6 Kd8 Qc4 Bbc6 Qe2 Bb5 Bf7+ Be8 Bb3 d7 Ba4 Ke7 Qf1 d8R Qe2 Rd5 Rf8 Kd8 Rf6 Bbd7 Bd2 Ba7 Ra6 Bb6 Bf4 Qde3 Bg3 Rd3 Bf4 Q5d4 Bd6 Qeg5 Bf8 Qge5 Bg7 Qg6 Bh8 Qg8 Ra5 Qgg7 Ra6
3r2q1/B2B1n2/2P1r3/rk2r1bR/1BRB1pb1/Q1RKNnn1/1N3Q2/1R1NQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 f5 h4 g5 e4 d5 b4 Kd7 c4 a5 h6 g4 b6 Kc6 b5+ Kd7 h5 d4 h7 a4 c6+ Ke7 c5 a3 h6 d3 e6 a2 b7 g3 e5 g2 c7 f4 b6 Na6 b8Q Bb7 c8R Bf3 b7 Nb4 Qd6+ Ke8 b8B Nd5 e7 Nb6 Rh5 Nd5 Nh3 g1N Na3 Nb4 Ba7 Na6 Nc4 Be2 Ne3 Nc7 Qc2 Nb5 Rb1 a1R Ba3 Rb8 Bb4 Nc3 Nf2 Nd1 Bh3 Nc3 Nfd1 Ra5 Bd7+ Kf7 e8R Be7 e6+ Kf6 Rc7 Rbb5 Qb2 Qb8 Rec8 Bg4 Rc6 Bd8 e7+ Kf7 e8N Bg5 Qd4 Ke7 Nd6 Nce2 Ndc4 Ng3 Qa3 Nf3+ Kc3 d2 Ncb2 Rb6 Kd3 Rba6 R6c7 Re6 Qdc3 Nf6 Qc2 Rd8 h8Q Nfe4 h7 Nd6 Qhc3 Nf7 h8B Qa8 Bd4 Re5 Nf2 d1R+ Q2d2 Re1 Nfd1 Qd5 Qf2 Qe6 Nf1 R1e4 Qce1 Qg6 Nfe3 Qg8 Rc1 Re6 Rc4 R4e5 Ra8 Rb8 c6+ Kd8 Rb7 Rc8 Rb5 Kc7 Rbc5 Rd8 Rb8 Nd6 Rc1 Nf7 R5c4 Nh1 Rb5 Ng3 Rbc5 Kd6 Rb1 Kc7 Bb8+ Kb6 Ba7+ Ka6 Rc3 Ng1 R5c4 Nf3 Qeg1 Kb5 Qfe1 Nd2 Qgf2 Nf3
1B6/5KbB/Q1pr4/n3R3/brRNPNQ1/r3BQR1/r1qn1Nb1/N1kB4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 g5 b4 a5 e4 f5 h4 c6 d4 a4 e6 Kf6 b6 f4+ Kg4 f3 b7 a3 d6 f2 h6 a2 Kh5 g4 e7 g3 e8B g2 h7 Nh6 d7 Nf7 b5 Qb6 d8R Qc7 d5 Ke5 Kg6 Nh6 h5 Ba3 d6 Na6 b8Q Qd7 b6 Qh3 b7 Nf7 d7+ Nc7 h6 Qe3 Qa7 Kf4 b8B Bb2 Rh5 Ng5 Qf3+ Ke5 Qa6 Kd4 Nd2 Kc3 Be2 Kc2 Nb3 f1B Nh3 g1R Nf2 Rf8 h8Q Qd3 h7 Nce6 Qg7 Bg2 h8N Rd1 Be3 Nd4 Rb1 Rd2 Rg1 a1R Bd1+ Kb1 Qg8 Ra2 Na1 Nb3 Qe6 Bf6 Qeg4 Kc1 Bf7 Qc2 Bg8 Na5 Bh7 Be5 Re8 Rf7 d8N Bg7 Re5 Rb7 Ne6 Rb4 Nd4 Be6 Rc5 Bb3 Rc4 Bh3 Rg3 Ba4 Nb5 Bg2 Nd4 Nf7 Re5 Nd6 Rc3 Ndc4 Kf7 Ra3 Ng6 Ra2 Bg5 Ra3 Nf4 Rd3 Bh6 Nd2 Rc4 Ra2 Nd5 Rda3 Be3 Rd3 Nf4 Rda3 Bc7 Rd8 Bb8 Rd6
2b1RQ2/6Nq/1P2n3/r1BNr1kB/2Q1R3/N1p1R1B1/r1K3bb/1Q1N1nrB w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 d4 h5 Kd2 c5 b6 c4 b5 e4 b7 h4 d6 e3+ Kc2 h3 g6+ Kf6 d5 c3 g7 a4 d7 h2 g5+ Ke7 g6 Kf6 b6 a3 d6 e2 Be3 e1R Be2 a2 Nh3 Be7 Bh5 Rf1 Nf2 Bf8 Bc5 Rh6 Na3 Ra4 Qb1 Ra8 Nd1 Nc6 b8B Rf3 Re1 h1B Re3 Qe8 d8N Rh7 d7 Rf1 Ne6 Rh6 d8Q+ Nce7 Qd5 Qb5 Qc4 Rh7 Bc7 Nh6 g8B Qa5 Ng7 Ng4 Bd5 Qa7 Bc6 Bg2 Bb8 Bh3 Bh1 Rg1 Bbd6 Nd5 Re4 Be6 Bc7 Bd6 Re3 Ke7 f6+ Kd7 Nf5 Be5 Re4 Rg7 f7 Nh2 f8R Rg4 Qbb3 Rh7 g7 Nf1 g8N Re7 Nf2 Rg1 Re8 Bg2 Rae1 a1R R1e3 Qb7 Qb1 Ra5 Bb8 Nc7 Nd1 Bd6 Ng3 Be5 f5 Bf4 f6 Beh3 Nf5 Bh2 Bd6 Re6 Bg3 Ree5 f7 Qa7 Nge7 Qb7 Qa6 Ke6 Qc4+ Kf6 f8Q+ Kg5 Nd5 Bg4 Nd6 Bd7 Nf5 Ne6 Bd6 Bc8 Bc5 Qh7 Ng7 Ra2+
1rn2K1k/RRRB3p/1b1Nr3/QbnB3Q/1P1n4/N3N1B1/1Br3qQ/n3Q3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 Kg7 Ke4 e5 b4 c5 d4 a5 f4 a4 g4 a3 f6+ Kf7 f5 a2 d6 c4 Kd5 e4 d7 e3 b6 c3 b7 c2 Bb2 c1R Qe1 e2 Nh3 Qb6 d8N+ Ke8 f7+ Ke7 g6 Kf6 g7 Bd6 f8R+ Ke7 f6+ Kd7 f7 Ke7 g5 Rc7 g6 Kf6 Na3 Be7 Nf4 Rc3 Bh3 Na6 b8B Qa7 Bd7 Rc6 Ng2 Nc5 Ne3 Qb6 Nb7 Qc7 Nd6 Nh6 g8B Na6 g7 Kg6 Ke6 Rc5 d5 Qc6 Re8 Rc4 f8Q Bd8 Qf4 Bb6 Ke7 Nf7 Kf8 Nc5 Re7 Rc2 Qh2 Ra6 Rf1 Qb7 Rf4 Qa8 Rc4 Bb7 Rc3 Bc6 Rc4 Bb5 Rc3 Nb3 Rc7 Nd4 Rb7 Kf6 Rc1 a1N Ra7 Rd2 Rcc7 Rc2 Ne4+ Kg6 Bc6 Ne5 Rc8 Rd2 d6 Bd3 d7 Bc4 Qf1 e1N Ke8 Nf7 Bg3 Ba5 d8Q Nd3 Qe1 Rc2 Bb5 Qd5 Reb7 Nc5 Bd7 Bb5 Qb6+ Qc6 Rcc7 Nd6+ Ke7 Qd5 Bge6 Rb8 Bg8 Qf5 Bd5 Qh3 g8Q+ Kh6 Qe8 Kg7 Qg6+ Kh8 Qh5 Nc8+ Kf7 Qg2 Kf8 Bc4 Qb5 Re6 Nd6 Bb6 Qa5 Bb5
krN1QNr1/n4p1B/P1RBQ1nb/RQ5b/B3n3/3R1Qrn/1qB3K1/7N w - - 0 1 illegal: No possible last move
BqQ3n1/QRP1bQp1/2NNK3/2bQBnR1/1nb5/1r3Rr1/6NB/2N3bk w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 e5 f4 a4 b4 d6 c4 e4 h4 a3 b6 e3 b7 e2 b5 e1B h6 a2 c6 Ra7 c5 Bf2 h5 Be7 b6 Qd7 c7 Qa4 h7 Bg3 h6 Qa3 c6 Qa4 Bg2 Ra6 Ne2 Bh2 Bb2+ Kf7 f6 Kg6 f5+ Kg5 f7 Kh4 f8R Nd7 b8N Bd8 b7 Qc2 f6 Ra8 f7 Qd3+ Ke6 d5 Na3 d4 Nb5 Ra3 Rb1 a1B Nd6 Qb5 Nc1 Kg3 Rg1 d3 Be5+ Kf2 Bd5 d2 Rg5 Qf1 Qa4 d1N Qa7+ Bd4 Bf3 Ngf6 Bd5 Rg8 h8N Be7 h7 Ne3 Ng6 Bc5 h8Q Qb5 Qh5 Bg1 Nh4 Nf5 Ng2 Rg3 Be4 Nd5 Qd1 Nb4 Qd5 Bh2 Rb3 Kg1 Rf3 Bf2 Rd8 Be3 f8Q Nf6+ Rd7 Kh1 Qf7 Beg1 Na6 Bc5 b8B Bb7 c8Q Bhg1 Rc7 Ba8 Rb7 Rh8 Bc7 Ng8 Nb8 Rh5 Bb6 Rhh3 c7 Qe8 Nc6 Qf8 Rf1 Rb3 Rf3 Qe8 Bh2 Rg3 Ba5 Nc2 Bc3 Nb4 Be5 Qf8 Rb5 Bb7 Rb6 Ba6 Rb7 Bc4 Nd4 Rh3 Rb5 Rc3 Qd7 Qb8 Qc8 Re3 Rb6 Ba6 Qc4 Re2 Ba8 Rb2 Qd5 Rb3 Nc6 Bc4 Rb7 Rg3
1QrB1b1r/2p3kn/n1BR1N1r/1RP2bnB/nN1q1Q2/5R2/N4Q2/N2K2Q1 w - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 f4 g5 b4 a5 h4 d5 b6 g4 e6+ Kg7 b7 a4 f6+ Kh7 h6 a3 e7 g3 e8B a2 h5 g2 b5 d4 f7 d3 c5 Ra3 b6 Bh3 f5 Bg7 f8R Rc3 f6 Bd7 f7 Bg4 Bg5 Be2 Nf3 g1R Bc6 Rg3 Nfd2 Rh3 Nb3 Qd5 Bd8 Rc2 Nc3 Rg3 Rb1 a1N Na2 Bf3 Be2 Na6 b8Q Qe6 b7 Bb2 Qc1 d2+ Kd1 Bc3 Rh4 Be5 Rd4 Qc8 Rd6 Rc3 Rb2 Nc2 Na1 Bf4 Rb5 Ne1 Qb2 Rc2 Qd4 Qd7 Qf2 Nf6 Qg1 Rhg8 Qf2 Kh8 h7 Kg7 h8N Rc3 Ng6 Rh3 Ne7 Be4 Nd5 Bf5 Ndb4 Nh7 Bg4 Nf3 h6+ Kh8 Bh5 Nfg5 Qg1 Rce3 Qf2 Re6 Qg1 Be5 Qf2 Bf6 Qg1 Be7 Qf2 Nf6 h7 Kg7 Qg1 Kh6 h8Q+ Nfh7 Qe5 Rf6 Qg2 Kg7 Qf4 Rh6 Qg1 Rh8 Re8 Bf8 Re3 Rg8 Rf3 Rh2 Re6 Qd4 Rd6 Be7 f8N Rh1 Nd7 Bf8 Nf6 Rh8 Ke2 d1N Qa7 Rh4 b8Q Nb2 Qab6 Na4 Q6a7 Qb2+ Kd1 Rh2 Qaa8 Re2 Qab7 Re8 Q7c8 Qe5 Qe6 Qb2 Qee3 Qc3 Qef2 Qe3 Be7 Rc8 Bd8 Qd4+
1QN2NKb/1Rp1n2Q/B1qR1P1Q/r2b1B2/2Nr4/2Rb4/1nbn1Bk1/2R1Q3 w - - 0 1 illegal: No possible last move
3R4/3n1Bq1/3qN1QB/qN5B/bR2Q2Q/1NR1P1pB/1kqrK2b/Nn4r1 w - - 0 1 illegal: No possible last move
4q1Nb/1B2qR1Q/2Q2BQ1/3K1QB1/4bNnn/q2Rpr2/Pq2rkN1/6NR w - - 0 1 illegal: No possible last move
4qNNB/1K3Q1r/4RbR1/1R3B2/Q4P1n/1Q2bkB1/Qp1Bbrn1/2bN1q2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 g5 f4 b5 d4 e5 a4 c5 h4 b4 a6 c4 f6 g4 f7 g3 h6 g2 h5 b3 h7 b2 a7 c3 a5 c2 a6 Bg7 f8N Bd7 h6 Qe8 Rh5 Bh3 Nf3 g1B Bd2 c1Q Nh2 Qa4 Nc3 Qa5 Qb3 Ne7 Nd1 Ng8 Ng4 Bh2 Bd3 Qb1 Nf6 Ne7 Ng8 Qb5 Ra4 Kc7 d6+ Kc6 d7 Ng6 d8B Bg4 Bh4 Bg1 Bg3 Be2 d5+ Kc5 d6 Nd7 Ra2 Re8 a8Q Nh4 a7 Bf6 Ra6 Nb6 d7 Be3 d8Q Nc4 Qd7 Re7 Qe6 Qe8 Qf7 Rd7 Re6 Rd8 Nc3 Qf1 Nd1 Rd5 Bb1 Rd3 Rg5 Rc3 Rg6 Rc2 Bc3 Bc1 Bce1 Ne3 Bd2 Qb5 Qae8 Neg2 a8Q Qb8 Qed7 Qe8 Qaa2 Ba6 Bc3 Rf2 Bd2 Be2 Qda4 Nf3 Kf5 e4 Bd3 e3 Ke4 Nfh4 Bc2 Bb5 Bb1 e2 Bc2 Be7 Ke5 e1B Bf5 Rf3 Ke4 Bf2 Ke5 Be3 Ke4 Rf2 Ke5 Bd6+ Ke4 Kb6 Kd5 Qe7 Bh3 Kc7 Bg4 Be2 Bh3 Be5 Bg4 Kd8 Kc6 Qe8+ Kb7 Bf6 Ne7 Rg8 h8R Rg7 h7 Qb5+ Ka8 Kc7 Ng8+ Qd7 Re7 Kd6 Re6+ Kc5 Kb8 Qe8+ Kb7 Bc4 Rg5+ Kd4 Rb5 Rg6 Bf5 Rh6 Ne7 Rh5 Rg8 Rh6 h8B Rh7 Qa8 Bd3 Rg6 Be2 Ng8 Be5 Bh3 Ke4 Bf5+ Kf3 Q8a4 Bf6
N1k2b1q/R1Nnb2p/1b5r/3R1Q2/b2NN1Q1/1B2P3/nQ2K2q/B1rRQ1B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 d4 a5 g4 c5 e6+ Kc7 g6 f5 b6+ Kb7 e7 a4 e8N a3 g5 a2 e3 c4 g7 c3 g6 c2 b5 f4 d6 f3 d5 f2+ Ke2 Na6 d7 Qf6 d8N+ Kb8 b7 Qc3 d6 Qf6 d7 Qc3 Nf3 Qc7 Qe1 Qc5 Ne6 Qb4 d8R Ne7 g8Q Bh6 g7 Bg5 N6c7 Ng6 Nc3 Qd4 Qf8 Ne5 g8Q Be7 Qg4 Nd7 Bb2 c1B Ne4 Nb4 Qff5 Ra6 Na8 Rh6 Nec7 Qf6 Bc3 Ba3 Nd4 Qh4 Rd1 Qh2 Ba1 Rf8 Rg1 Rff6 Bg2 Rc6 Rh1 Rc1 Bf3 Ka7 b8B+ Kb7 b6 Bf8 Bc3 a1B Rf1 Ne5 Rd5 Bd7 Bb2 Kc8 b7+ Kd8 Rh1 Na2 Bc3 Bac5 Bg2 Bb2 Bf3 Bba3 Ba1 Bb6 Bg2 Qg3 Rh5 Bab4 Ra5 B4c5 Ra7 f1Q+ Kd2 Qff4 Bf1 Ng6 Ne8 Bc6 Qe5 Ba3 Bc4 Ba5+ Ke2 Qf6 Qb5 Qg1 Bh2 Qh8 Nec7 Bae7 Rc5 Qg3 Bg1 Ne5 Bg8 Nd7 Rf5 Nc5 b8Q+ Kd7 Q8b6 Kc8 Bf7 Be8 Qe6+ Bd7 Qb2 Bb6 Re5 Qh3 Qef5 Qh4 Bb3 Qh1 Nce6 Ba4 Rd5 Nd7 Nec7 Qh2+
b1qRB2N/4BQP1/1b2N1r1/KN3bQB/4R3/1q3pB1/n1k2nNQ/b2r2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 Kd2 c5 Kc3 h5 g4 a4 e6 Kd6 b6 h4 e7 a3 e8Q a2 b7 c4 e5+ Kc7 e6 Kb6 d6 f4 d5 h3 g6 h2 g7 Ra5 b5 Kc5 g5 Qd7 b6 Nc6 b8B Ba6 g6 Ra4 e7 Rh4 b7 Nf6 g8Q Qf5 d7 Nh5 d8N Rb4 d6 Qf7 d7 Bh6 Qd2 Qf8 Nf3 Qf7 Rg1 h1B Ba3 Nf6 Be2 Ng4 Ne1 Nf2 Bh5 Rg4 Ng2 Qe6 g7 Rg6 Qh7 Kb5 Bd6 Ka4 b8R Bc8 Qf7 Rb6 e8B Nb4 Be5 Rd6 Qe3 Qh3 Ne6 Rd1 d8N+ Bd7 Qg3 Bg5 Re1 Be7 Qh6 Bc5 Qg5 Ba7 Re4 Bb6 Ne1 Bf3 Qh2 Qg3 Ng2 Qh3 Re3 Ba8 Rc8 f3 Bg3 Qf5 Re4 Qb5 Bb2 Qd5 Na3 Qb7 Rc1 a1B Nb5 Qd5 Ned4 Bf5 N4e6 Rd2 Rg1 Rd1 Nf8 Qb7 Nde6 Qd5 Rd8 Na2+ Kc2 Qb7 Ba3 Qb8 Bb4 c3 Bc5+ Ka5 Kb3 c2 Ba3 c1Q Be7 Qcc8 Ka3 Rf6 Ng6 Qbb7 Nh8 Rg6 Nbd4 Qd5 Nc6+ Kb5 Ncd4+ Kc4 Ka4 Kc3 Nb5+ Kb2 Ngf4 Kc2 Ng2 Bc5 Ka5 Qb3 Bh4 Ba7 Bg3 Bb6+
2nQ1K1n/6p1/3NB2R/2Brkrbb/3bb3/4RQ2/QQR1B2P/B2NNq1q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 a5 Kf4 c5 Kf5 f6 Kg6 c4 Kf7 a4 e4 f5 d4 f4 b4 c3 d6 f3 d5 c2 b6 f2 h6 a3 b7 a2 b5 Ra6 h7 Ra7 b6 Nf6 Be3 c1Q Nc3 Ra4 Be2 f1B Nf3 Ra6 Ne1 Ng8 Bc5 Qa3 Rc1 a1B Rc2 Qg5 e6+ Kd8 e7+ Kd7 e8B+ Kd8 e5 Qe3 e6 Bh3 d7 Nc6 b8Q Bg2 b7 Rb6 Qa7 Kc7 e7 Qac1 Qa2 Na7 d6+ Kc6 b8Q Qd3 Rf1 Be4 Rf3 Rb5 d8B+ Bd7 Rh3 Nc8 Re3 Ra5 Qbb2 Rb5 Bg4 Qf1+ Qf3 Qd1 Be6 Qb1 Ba7 Rd5 Bc5 Qh1 Nd1 Rf5+ Qf6 Bd4 Ba5 Qb5 Bc3 Qbf1 Ba1 Nh6+ Kg6 Rg8 h8R Nf7 Rh6 Nh8+ Kh7 Qa6 Bh5 Be8 d7 Qaf1 d8Q Bf7 e8N Be7 Qe5 Bg5 Nd6 Rf8 Bg4 Bh5 Qef6 Rf7 Kg8 Ra7 Kf8 Ra5 Bc4 Rb5 Be2 Ra5 Qb2 Kd5 Qf7+ Ke5 Bh3 Rf4 Bd7 Rf5 Be6 Bf6 Qa7 Rb5 Qaa2 Ra5 Bb4 Rd5 Bc5 Bg5+
Qq2q2N/r2n2bp/1RRBNNnP/k1B5/1nb1R1KB/1Q3n2/4b3/2QBQ3 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 f5 fxe5 b5 a4 a5 axb5 f4 g4 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Qg5 Nh3 Qe7 Ng1 Qd8 Kf2 Kd7 Kf3 c5 e4 Kc7 d4 Kb6 h4 g5 b4 c4 f6 a4 e6 c3 h5 a3 f7 a2 e5 c2 e7 Nd7 e8Q Nc5 e6 Nb7 h6 Bg7 f8N Bf6 d6 Bg7 d7 Nf6 e7 Na5 d5 Ng8 d6 Nb7 Ne2 Qc7 d8Q Nc5 d7 Nb7 Ne6 Na5 Nbc3 Nc4 Be3+ Bd4 Nd5+ Ka7 b6+ Ka6 b7 c1N b8B Nf6 b5+ Ka5 b6 Rg8 b7 Nd3 Qc1 Rg7 Rb1 a1Q Rb6 Qa4 Rh4 Qe5 Bd6 Nb4 b8Q Ba6 Bh3 Ba1 Bec5 Qb2 Bg4 Ne5+ Kf2 f3 Kg3 f2 N2f4 f1B Ng6 Bac4 Nh8 Bfd3 Bd1 Ng6 Re4 g4 Qdc8 Qc6 d8B Nd7 Nf6 Be2 Qcb7 Qc8 Qd5 Qb3+ Qd3 Qa4 Qb3 Bb2 Qb7 Qb8 Qd5 Bc3 Qdd2 Bd4 Qe1 Ba1 Qf8 Bc3 e8R Be5+ Kg2 g3 Kh3 g2 B8e7 Bb2 Rc8 g1N+ Kg3 Bd4 Rcc6 Nf3 Kg4 Be5 Ng8 Rf7 Bh4 Bg7 Nf6 Qb5 Rc7 Qc6 Qc8 Qca8 Qb7 Qe8 Rcc6 Qab8 Qc8 Ndf8 Qd8 Ra7 Qc8 Nd7 Qd8 Qc7 Qa8 Qcb8
1QN1R1b1/BnbNBQ1N/2R5/nr1Bq3/1b2R3/Q2B1pn1/2Kq1P1k/4Q1n1 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 d6 Bg4 axb3 Na6 b4 Bc8 b5 Nb8 d4 Kd7 e5 Ke6 d5+ Kf5 d7 a5 Qd4 Ra6 Qd1 Rd6 exd6 Kg6 Kd2 Kf5 b4 Kf4 g4 e5 g6 c5 g7 h5 g5 f5 g6 e4 b6 c4 b7 a4 b5 a3 b6 c3+ Kc2+ e3 Bd3 a2 Na3 h4 Nc4 h3 Nf3 h2 Re1 h1N Ng5 Rh3 Nh7 Nc6 b8Q Nf6 g8B Ng3 b7 Nfe4 g7 Nc5 Nb6 Na5 Bf7 Qf6 g8Q Rh5 d8R Qe5 Re8 Be6 d7 Be7 Ba3 e2 d8Q Kf3 d6 Kg2 d7 f4 Rc1 a1B Nc8 f3 Qd2 Bf8 Qe7 Kh2 d8B Ba2 Bd5 Bc4 Red1 e1Q Qgf7 Q1e3 Qe1 Qd2+ Kb1 Bb3 Bb6 Bb2 Bb4 Ba3 Qed6 Bh6 Ba7 Bf4 Qa8 Rg5 b8N Ncb7 Nd7 Bc4 Bbc5 Bb4 Qb6 Rf5 Be7 Rg5 Qb8 Rf5 Qd4 c2+ Kb2 Bb3 Qc3 Ba2 Ra1 Bc4 Ra4 c1N+ Kb1 Rg5 Qa3 Nce2 Rc1 Bb3 Rc6 Ng1 B5e4 Be6 Bd5 Rf5 Qg6 Bg8 Qf7 Bc3 Re4 Bb4 Qf8 Qec3 Qg7 Bc7 Qf7 Qh8 Be6 Rb5 Bd5 Qe2 Kc1 Qe5 Kb1 Qe3 Kc2 Qd2+
1qR1B1Q1/1p3B1n/KPn5/2krQNq1/1qrR3R/1b2BR1N/Nrq5/3QN3 w - - 0 1 illegal: Other
n1Bq3b/4r1B1/nNk2BR1/Qpb4b/NP1B2n1/4NN1Q/2n1q1K1/4QRR1 w - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nf6 g4 Ng8 gxh5 b5 a4 a6 a5 Ra7 Qc2 Rb7 Qd1 Rb6 axb6 a5 f4 Kd7 Kf2 c5 d4 g5 b4 e5 h4 g4 b7 c4 h6 g3+ Kg2 c3 h7 a4 d6 c2 f6 e4 f7 e3 h5 e2 f5 e1B d5 a3 h6 a2 f6 Bg7 f8N+ Ke8 d7+ Kf7 d6 Ne7 Bg5 c1Q Ne6 Qa5 d8Q Qa6 d7 Qc3 Nc5 Bf8 Nd2 Qe3 Na4 Ke6 f7 Kd6 Ngf3 Qc6 Rg1 Nd5 Bf6 Qc7 Nc4+ Kc6 Qc1 Bc5 f8B Qd6 B8g7 Na6 Qa5 Re8 h8B Ndc7 d8R Bg4 h7 Bc3 Qe1 Re7 Rg8 Bh5 Rc1 Qee5 Ne3 a1N Bd3 B3d4 Bf5 Na8 Bc8 Nc2 Ra1 Qd8 b8N+ Kd6 Nd7 Kc6 Ndb6 Qe4 Kh3 g2 Rf1 g1N+ Kg2 Bc3 Bd4 Qe5 Bf6 Bb2 Bhg7 Nh3 h8Q Nf2 Rb1 Ng4 Rd1 Bf7 Qh3 Bc3 Bf8 Bh5 Rg6 Qe6 B8g7 Qc4 Ra1 Qe2+ Rf2 Qh8 Bg5+ Bd6 Qb1 Nh6 Bde5 Kc7 Bf8 Bd4 Qc1 Bc5 Bd4 Be5 Qd2 Bed6 Rg1 Ng4 Qe1 Be5 Bfh6 Qe8 Bh4 Bg7 Bhf6 Bh8 Bf8 Kc6 B8g7 Qc4 Rff1 Qd8 Rf2 Qd3 Rff1 Qe2+
1QnbRR2/1n1nN2k/1b2Q1r1/2pK1R1N/q4NBp/3Br3/4QrRP/2B4Q w - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Qf6 cxd5 Bf5 gxf5 Qd8 Kf2 Kf7 Kf3 h5 Ke4 g5 b4 Kg7 d4 a5 d6 c5 f6+ Kg6 f7 g4 b6 g3 d7 g2 b7 h4 d5 a4 d6 a3 b5 a2 b6 f3 e6 f2 e7 Nh6 e8Q Na6 b8N Kg7 b7 Nc7 Nd2 Nb5 Kd5 Ra3 e4 Rh3 e5 Nd4 e6 Nc2 e7 Rc3 Ne2 g1N Nf4 Kh7 Nc6 Nd4 b8Q Ndf5 Ne4 Qa5 d8Q Rg8 d7 Nd6 Ng3 Nc8 Ngh5 Qa4 Qdb6 Re3 d8R Nf5 Bd3 Nf3 Rg1 f1R Rg2 Rf2 Qh1 Rg6 Rb1 Bh6 f8R a1B Qb2 Nfd6 Qe2 Bf6 Qd7 Bfg7 e8B Ne5 Qe6 Nb7 Bd7 Bf6 Rde8 Bd8 Ne7 Bb6 Rb4 Bg5 Re4 Nc4 Re5 Bf6 Rf5 Ne5 B7b5 Qa7 Ba4 Nd7 Bd1 Qa8 Qee1 Qa4 Bg4 Be5 Qd2 Bec7 Qe2 Bd8
3R1Q2/bBn1NbR1/3B1k1B/1p6/BQR1prR1/K1PN3q/2b1Q1r1/rN4n1 w - - 0 1 illegal: No possible last move, all moves rejected
qkn5/b4R2/1p1PN3/2RR1n2/Q2nQ1B1/1pB1R1KQ/r5B1/NNbbB2r w - - 0 1 illegal: Other
NN2Q3/2bqp3/RBBkn2Q/4r3/1PbN2K1/3QrpB1/RnRbr1R1/B7 w - - 0 1 illegal: No proof kernel
bK2n1r1/1rp1q1Q1/2B1N1QR/B3RbnQ/R1B1Pbp1/2N5/1R2N1r1/4Nk2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kd4 g5 b4 a5 h4 f4 e4 f3 h6 g4 d6 Ke6 Kc5 f2 d4 a4 b6 a3 h5 a2 d5+ Kf7 h7 Bd7 b5 Ra7 b7 Qh4 b6 Qh2 e6+ Kf6 e7 Ke5 e8B Ra8 h6 Qh4 Bc4 f1B Nf3+ Kf6 Bd2 Bg2 Ne1 Ke5 Ba5 Kf4 Nc3 Bf5 Bc6 Ne7 d7 Kg3 d8R Kf2 d6 Qh5 d7 Ra6 Re8 Qg5 d8N Ng8+ Qd6 Be7 Ne6 Nd7+ Kb5 Bd8 b8R Qe7 b7 Ngf6 Rh5 Rf8 h8Q Bf1 h7 Rg8 Rh6 Nc5 Qg7 Ra7 h8Q Be2 Qhh7 Kf1 Qh2 Bd3 Qh5 Be2 Qh7g6 Bd3 Rb1 a1R Ra8 Ra2 b8N Rg2 Rb2 Be2 Bb7 Bd3 Nc6 Be2 Ncd4 Bd3 Nf8 Ne6 Kc6 Ng5 Nde2 Bb1 Ne6 Ba2 Rf8 Ne8 Rf7 Qb4 Re7 Bb3 Kd7 Ba4+ Kc8 Bc6 Kb8 Qc5 Rf7 Bf6 Rd7 Be5 Rd5 Bf4 Re5 Bd5 Bc6 Qe7 B6b5 Ra6 Ra7 Bb7 Bc6 Ba8 Rab7 Ra7 R7b4 Qd6 Ra4 Qa3 Qh2 Qe7 Qhh5 Rb7+
3b4/1q1N1r1n/r3RQ2/qb2nR1R/P2pB3/1NB3B1/1QpNnQBK/3kN3 w - - 0 1 illegal: No proof kernel
3R3R/3qb2B/bRn5/1Nr1p2B/N2QP3/1knrNN1Q/5pbK/2Qq1BB1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 h4 Qd6 g4 Qb4 g6 Qd6 h5 Qb6 g7 Qc6 g5 Qg6 hxg6 Kd8 Ra5 Kd7 Ra1 Ke8 Kf2 Kd7 Kg2 Kd6 b4 c5 d4 f5 e4 a5 b6 e5 b5 h5 b7 a4 b6 a3 Nf3 f4 Kh2 a2 Na3 h4 Be3 h3 Bg1 c4 Rb1 a1Q Qc1 c3 Nb5+ Ke7 d6+ Ke6 d7 c2 d8Q Nf6 g8N Rh7 g7 Rh8 g6 Rh6 Ne7 Rh7 g8B+ Rf7 g7 Qa7 Nd5 Be7 Ne3 Nd5 Bh7 Nc6 b8Q Nc3 g8B Qd7 b7 Ra3 Qa7 Rb3 b8N Ba6 Qc8 Ra3 Bg6 Rb3 B8h7 Rf8 Qa3 c1Q Bh5 Qd1 Qc1 Rd8 Qb6 Rb4 Qc5 Rc4 Qa7 Rc5 d5+ Kf6 d6 Ke6 Ne1 f3 Rb4 f2 Nf3 Rg8 Rb3 Rg3 Qh8 Qc8 d7 Qe8 d8R Qed7 Nc7+ Kd6 Rb6 Rd5 Nb5+ Kc5 Nd2 Kb4 Nf3 Qd6 Nd7 Kb3 Rb7 Rd3 Nb6 Qd7 Na4 Rg6 Qd4 Rd6 Rb6 Rd5 Kg3 Rc5 Rh2 Qe6 Rg2 Qf7 Kh2 Qf5 Rgg8 Qd7 Kg3 h2 Rge8 h1B Kh2 Bf6 Qg8+ Rc4 Qe6 Be7 Qh3 Bg2 Rh8 Rc5
1K1Q1R2/2b1n1Q1/Qn1RBBN1/p2N2Pb/p5N1/1q1B3k/N2Br3/Rqqr4 w - - 0 1 illegal: Other
RB6/1QNqR1RK/Np3R2/1np2B2/2N1qb1Q/4P2B/b1rq1r2/QB1kn3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kg3 c5 Kf4 f5 Kg5 g6 h4 b6 d4 f4 a4 f3 h6 f2 h5 Ra7 a6 Nd7 h7 Ndf6 h6 Kd7 a5 Ra8 a7 Be7 d6 Kc6 d7 Kd5 a6 Kc4 e6 Bf8 e7 Qe8 d8Q Bd7 d5 Kb4 d6 Bg7 Qb8 Bg4 d7 Be6 d8R Bf8 Rd6 Bd7 Na3 Kc3 Bh3 f1Q Nb5+ Kc4 Nc7 Kc3 Bf4 Nh5 e3 Bf5 Nf3 Qe2 Qb7 Bg7 Ne5 Bb1 Nc4 Be5 Rf6 Qd7 e8B Ne7 Rg1 Rf8 h8Q Ba2 h7 Nc6 Kh6 g5 Bg6 g4 Bf5 g3 Qf1 Rad8 a8N g2 a7 Qed2 Na6 Nd4 N8c7 Nb5 a8B Bd6 Bh2 Nf4 Qe1 Be5 Qh4 Nd3 Qg7 Kc2 h8R Bf4+ Kh7 Rf7 Re8 Rf8 Re7 Rf7 Rge1 g1Q Red1 Qg3 Rg1 Qf3 Rg3 Rff8 Qh8 Qfc6 Rgg7 Qe4 Rfe6 Qb4 Rg8 Bg5 Rg1 Qh1 Qbe4 Na7 Nb5 Qc8 Bg6 Rf3 Qa1 Rf2 Rf6 Qe6 Bc7 Bf4 Bgf5 Rd6 Rb8 Qd7 Rgg7 Qhb1 Bd5 Kd1 Ra8 Ne1 Bb8 Qc3 Bc6 Rdd2 Nbc7 Nb5 Qh1 Qcd4 Bce4 Qc1 Bb1 Rc2 Qe4 Qcd2 Qb7 Qe4
1QQ2bB1/3N1BN1/p2NrBp1/bnR2q2/B4k1K/3n4/1Rb2P2/rR1QR1q1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 b4 Kf6 c4 Ke5 b6 d5 f6 e6 h6 a6 f7 d4 c6 d3 c7 d2+ Ke2 g6 Kf3 Bg7 Kg4 Bd7 c8B Bb5 f8N Be8 b7 Bc6 h5 Bf6 b5 Bh4 c5 Qc7 b6 Ne7 h7 Bg3 h6 Bf4 Nf3+ Ke4 Nd4 e5 Bb5 Nd5 Ba4 Nc3 Re1+ Be3 Nde6 Qf7 Ng7 Qg8 Bb2 Qd5 Kh4 Nd7 b8R Qd3 b7 Bb5 c6 Nc5 c7 Qd7 Na3 Qf5 Nc4 Kf4 Nd6 e4 Be6 Nd3 c8B Bc5 Bf7 e3 Bce6 e2 Rb1 Be8 Bc4 Nb5 Bf6 Bc6 Bce6 Be4 Nd7 Re8 Ba2 Re6 h8Q Ba3 Rc8 Rb8 Rc5 Rd8 b8Q Rde8 Rg1 e1B h7 R8e7 Qhc8 Re8 Qe2 d1Q h8R Ba5 Rg8 Qf1 Qd1 Qg2 Re1 Qg1 Rh8 R8e7 Ne5 Rc7 Nd7 B3b4 Rh5 Rc6 Rc2 Rc3 Bd5 Ra3 Rcb2 Ra1 Ba2 Ne5 Bd5 Bc2 Bc4 Nd3 Rg5 Qe4 Rc5 Qf5 Bcb3 Bd8 Ba2 Bba5 Bd5 Be7 Bg8 Bf8 Bdb3 Re4 Bbf7 Re6
Q4B1R/rBq2b1p/1Q1N1P2/1R1QB2r/2n2q1R/q3Qp1n/1Nk2K2/B2N2b1 w - - 0 1 illegal: No possible last move
kn3rb1/1n4p1/1QBRNNPr/1B6/qR2KQQ1/1b3R1N/3Bp1q1/BQ3n2 w - - 0 1 illegal: No proof kernel
2bnNr2/B2PR1bp/B1QB2NN/rR1R4/8/p2N3k/nqQ5/qQB1K1q1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 f4 c5 b4 e5 d4 a5 g6+ Kf6 b6 e4 d6 e3 d5 e2 b7 a4 g5+ Kg7 b5 c4 b6 a3 d7 c3 d6 c2 Nf3 Qc7 d8R Qc5 Nbd2 Qb4 Rb1 Be6 Ne5 Nc6 b8Q Nh6 b7 Qa5 f6+ Kg8 f7+ Kg7 f5 Qc3 Nd3 Qf6 Rb5 Na7 Nc4 Be7 f8B+ Kg8 g7 Kf7 g8N Qb2 f6 Kg6 f7 Nf5 Nh6 Bf6 d7 Nc6 Rh5 Bg7 Nd6 Nfd4 Re8 Ba2 Re7 Ne6 Ne8 Ra5 Qh2 Ned8 b8B Bb3 Ba7 Nb4 Qd6+ Be6 Qc6 Na2 Qd2 Rg8 Qb4 Qa1 Qb1 Qb2 Rh4 Qa1 Rd4 Kh5 Rdd5 Kh4 g6 Bf5 Nb2 Be4 Nd3 Be5 g7 Rh8 g8Q Bg7 Rf5 Bg2 Rfd5 Kh3 Re4 Qb2 Bd6 Qa1 Qf8 Rg8 Qe7 Rf8 Qe5 Qb2 Qec3 Qa1 Re7 Qb2 Bce3 Qa1 Qb3 c1Q+ Qd1 Qcb2 Qdc2 Rh8 f8N Rg8 Kf2 Rh8 Ng6 e1Q+ Kg1 Qg3 Bc1 Rf8 Be2 Bf3+ Kf1 Qh2 Ke1 Qg2 Rde5 Bd5 Bf1 Bc4 Rbd5 Ba6 Rb5 Bb7 Red5 Bc8 Rbc5 Qf6 Ndf4+ Kg3 Ba6 Qfb2 Nd3+ Kh3 Rb5 Qg1+
RR1Nn2Q/Rr2N3/8/2b2r1R/BBnb1K2/Qp1pB2q/1Q1b1P2/1N1k1B1b w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Ke3 Kf6 a4 Ke5 c4 b5 h4 d5 f6 g5 h6 b4 f7 b3 h5 g4 a6 e6 c6 g3 c5 g2 c7 Qd7 h7 Ne7 a7 Nec6 h6 Bg7 f8B Na5 c6 Na6 Qe2 Rb8 a8Q Bb7 c8N Nc7 Ne7 Ne8 Nh3 g1B c7 Bh2 c8B Nc4+ Kf3+ Kd4 a5 e5 a6 Bc6 a7 Rb7 Ng5 Bg3 Ra2 Qh3 Nf7 Rg8 h8R Bf6 h7 Rg5 Ra5 Rf5+ Bf4 Bg7 Nd8 Bf6 Nd2 Kc3 Bd7 Kc2 Rg8 Bg7 h8Q d4+ Rd5 d3 Nb1+ Nd2+ Ke3 e4 Ra5 Bd5 Ba4 Kc1 Qc8+ Bc3 a8R Bc6 R5a7 Bb4 Qd7 Bc5+ Qdd4 Bh4+ Qf3 Bf6 Qg3 Kd1 Rb8 Qg4 Rh5 Qh3 Bg5 Rd5 Bgh6 Nc4+ Kf4 e3 Qb2 e2 Qg6 Bfd4 Qd6 e1B Bg5 Bb6 Qda3 Bbc5 Rba8 Nf6 Nf5 Rc7 Nf7 Bb6 Bb4 Rb5 Rgb8 Bh1 Ne7 Ne8 Nd8 Rb7 Bh6 Rd5 Bg5 Bbc5 Bh6 Qe3+ Kg4 Bd2 Bg5 Qe6+ Kg3 Qf5 Be3 Qh3+ Kf4 Rf5+
5K2/2Qr1Q1b/R6N/nNb4B/Qpp1QRqb/4B1rn/RPBN2Nk/5b2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 b4 c4 Qd7 cxd5 Qb5 axb5 Bd7 Qa4 Be6 Qd1 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 h5 d4 c5 g4 a5 f4 e5 f6 a4 f7 h4 b6 c4 b7 a3 g6 a2 g7 h3 f5 h2 g5 Rh5 f6 Nc6 b8N Na7 g6 Bh3 Be2 Nc6 Be3 Rh7 Bh5 Nh6 g8B Na7 g7 Bg2+ Nf3 Nc6 Na6 Rd8 Nd2 Bf1 Nh4 Rd7 Qa4 Rb7 Ng2 Na5 Nc7 Nc6 Nb5+ Kd7 d6 Ke6 d7 Rb8 d8Q Rb6 Qda8 Bc5 f8Q+ Nf7 Rg1 h1B d5+ Kd7 Kf5 e4 Kg6 Na5 d6 Ke6 d7 Ke5 d8Q Ng5 Qd7 Nh3 Kf7 Rd6 Ke8 Rd3 f7 Ra3 Qc7+ Kf5 Bg6+ Kg4 Qfe7 Rc3 f8R Rb3 Rf4+ Kg3 Bf5 Kh2 Bf7 Rd3 g8N Rd7 Qb6 Rg7 Qc7 Rg5 Nh6 Rg3 Re1 a1Q Bh5 Qd1 Qf7 Qg4 Ra1 Bf8 Ra2 Bc5 Bf2 e3 Bc2 e2 Be3 e1B Qe4 Be2 Rgf1 Bd3 R1f3 Bf1 Rf6 Bf2 Ra6 Be1 Rf4 Bf2 Nh4 Bf3 Ng2 B3e2 Qeb7 Bd3 Qa8 Bh7 Qe4 Bb6 Kf8 Bc5+ Qd6 Rf3 Qde7 Bh4 Qd6 Rg3 Qde7 Rd6 Qc7 Rd7+
1RQbN3/1NQ1Qn1R/2rpnP2/pNq3bB/2B3N1/2B1RK2/B2br3/3bk3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 b4 Kf6 f4 e5 c4 a5 h4 g5 h6 g4 c6 e4 c7 d6 b6 g3 b5 g2 c5 e3 b7 Bd7 c8B Ne7 b6 Ra7 h7 Be8 h5 Bh6 c6 Bf7 c7 Bf8 h6 Qd7 Nf3 g1B Ra3 Bg7 Bd2 Ra8 Qe1 Bh2 Ne5 Bc4+ Kf3 e2 Re3 Qe6 Nc3 Ba6 Nb5 Qg8 Bc3 Bf8 Be6 Qg7 c8B Qg8 Ba2 Nbc6 b8Q Ng6 b7 Ra7 Qc7 Nd8 b8R Qc4 Be6 Rb7 Bf7 Ne6 Be8 Rg8 h8N Qc5 h7 Be7 Nhf7 Rb6 Nd8 Nh8 Nb7 Rc6 Bh5 Nf7 h8Q+ Rg7 Qhc8 Bd8 Qh4+ Rg5 Qe1 Bg1 Qh4 e1B Bfc4 Bd2 Qe1 Rg2 Rh2 Kg7 f6+ Kh6 f5 Kg5 Ng4 Bf2 Rh1 Rh2 Qe2 Kh4 Qe1 Kh3 Qe2 Bh4 Qe1 Nh8 f7 Bhg5 f8N Nf7 Qe2 Kh4 Nh7 Kh3 Nhf6 Kh4 Nd4 Bb5 Ne8 Ba4 Nb5 Kh3 Qe1 Bd1+ Ke4+ Kg2 Qh4 Bh6 Qhe7 Bf4 f6 Bg5 Ree1 Kg3 Re2 Rf2 Re3+ Kg2 Rhh3 Re2 Rh2+ Kf1 Kf3 Qe5 Bg6 Qc5 Rh7 Ke1 Bh5 Rb6 Qf8 Ra6 Qfe7 Rc6
q4r2/2Nkrp2/1Q5N/2bP1N1Q/4BRRB/pR2Bb2/2nrrB2/1NQKn3 w - - 0 1 illegal: No possible last move
Q1BQ4/1r1P3p/7n/2b2QB1/Rq1k1r2/n1p1NB2/3Nr1bR/RK2BQrN w - - 0 1 illegal: No possible last move
bQ1n1b1Q/2QpQb1K/RrqR4/2BrN1RB/1b4N1/RnP5/6p1/N2Bk3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 a5 b4 g4 b6 f6 h6 a4 h5 g3 b7 a3 h7 g2 b5 a2 h6 Qe8 c3 Be7 c6 Qf7 c7 Qf8 b6 Qe8 Na3 Qd8 Rh5 Bb4 Qe1 Ne7 Nf3 Ra4 Rg5 Re8 h8Q Ra5 h7 Na6 b8Q Bd6 b7 Bb4 Be3 Rf8 Nc2 Rb5 Bc5 Qe8 e3 Nd5 Be2 Nf4 Bd1 Rb6 Qa7 Qe7 b8Q Qd6 Nh2 Re8 Ng4 Rf8 Qab7 Rg8 Qc6 Bb7 c8R Ba8 Rc7 Rc8 Ra7 Rc7 Qcb7 Rcc6 Q7c7 f5+ Kf3 Kd5 e6 Kc4 e7 Kd3 e8R Qh6 e4 Rd6 Re6 Rd5 Rd6 Ne6 e5 Nd8 e6 f4 e7 Qf6 Qe5 Kd2 Ke4 f3 e8B f2 Qe7 f1B Bh5 Qh6 Kf4 Bc4 Ke4 Rd4+ Kf5 Bf7 Qhf8 Rd3 h8N Rd4 Ng6 Rd5+ N6e5 Qf6+ Ke4 Qe6 Qh8 Qh6 Bd4 Nc5+ Kf5 Nb3 Ra6 Qf6+ Ke4 Qe6 Bc5 Qf6 Rc1 Qh6 Kf5 a1B Ra3 Bb2 Rca1 Bc1 R1a2 Bb2 Na1 Ke1 Ra6 Bc1 R2a4 Bca3 R4a5 Qh7+ Kf6 Qd3 Kg7 Qb5 Kh7 Qc6 Ra4 Bb2 Ra3 Bc1 Rg8 Bh6 Rg5 Bf8
4R1BB/P1RQrNrQ/1Nr4b/4nqRp/K2r2bQ/1QB4B/n1p5/3kN3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 c5 Kc3 e5 Kb3 b5 f4 h5 a4 b4 g4 e4 g6+ Kf6 d6 e3 a6 e2 d5 e1R g7 Bd7 g5+ Kf7 a5 Nf6 g8B+ Kg7 g6 Kh6 g7 Bc8 d7 c4+ Ka4 b3 d6 b2 a7 c3 a6 c2 Nd2 b1R Bh3 Rb7 Bb2 Re8 Bc3 Nc6 Nc4 Qe7 d8Q Nb8 d7 Qc5 Nb6 Be7 Nf3 Ne4 f6 Qe3 f7 Qd2 f8Q Qd5 f5 Nd6 f6 Rh7 f7 Bg5 Qfe7 Qf5 f8B Ne4 Ne1 Nc6 Rg1 Rc7 Rg3 Bd2 Rg5 Ne5 Qg4 Be3 Qh4 Rc6 Ra2 Rb8 a8R Bd2 Qf7 Re7 Qb3 Rb7 Qe8 Rbc7 d8N Rcd7 a7 Bf4 Ra3 Rd4+ Bc4 Be6 g8Q+ Rhg7 Qd7 Bc1 Rg4 Bg5 Nf7+ Kg6 Qh7+ Kf6 Qf2 Be3 Re8 Bh6 Qd8 Bd7 Rg5 Bc8 Qh4 Be6 Ba1 Bc8 Qd7 Nc3+ Kb4 Na2+ Ka4 Qg6 Bc3 Qd3 Qd8 Bg4 Qd7 Qf5 Ba1 Ree6 Bb4 Re7 Bbc3 Qe6 Rg6+ Kf5 Rg5+ Kf4 Qb1 Ke3 Nd8 Rc7 Ba5+ Nd3 Qc6 Ke2 Rc3 Rg8 Qb3 Kd1 Qd7 Qf5 Bb4 Rg6 Bg8 Rcc4 Nf7 Rdd6 Bb2 Rf4 Rc7 Rc6 Bh8 Rg7 Qb2 Rd4 Qb3 Rd5 Bd2 Ne5 Bc3 Rd4+
1QQ1n1rR/p4rB1/6b1/N1NB1RbQ/4n1n1/Q3RB1P/K2kp1qR/1n5N w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb3 Ke5 f4+ Ke4 c4 g5 f6 e5 h3 d5 f7 d4 c6 g4 c7 d3 b6 g3 h6 g2 c5 d2 h7 Ke3 b7 e4 c6 Qh4 f5 Qg5 f6 Bd6 f8R Bd7 c8B Bc7 f7 Bb6 c7 Ba5 Qh5 Qe7 Nc3 Qd8 Ka2 Bb5 b4 Nf6 Bb2 d1N Bc4 Nfd7 Bd5 Bb6 Rh2 Rg8 h8R Nc5 Na4 Nf2 Bg7 Bd3 b5 Qg5 Bg4 Nba6 b8Q Kd2 c8Q e3 Bgf3 Bg6 Ne2 g1N Re1 Ng4 Ng3+ Ne2 Nh1 Bd8 b6 Ne4 b7 Nc7 Nc5 Be7 Rd8 Ne8 f8Q Bf6 Rd6 Be7 Rf6 Bd8 Qfd6 Rf8 Rf5 Rf7 Qbc7 Be7 b8N Bd8 Nc6 Rb8 Nf2 Be7 Na5 N2c3+ Ka1 Ra8 Q7b8 Nb1 Ka2 Bf6 Nh1+ e2 Rg1 Qe3 Rc1 Qg1 Rc3 Qg2 Re3 Bg5 Qb3 Rf8 Qa3 Rg8 Qf8 Rb8 Qd6 Rb7 Qdb8 Rf7
N1q1Bb2/r1bR4/6NB/K1k5/br2pN1p/RQ2b2P/RQ5N/2nRBbQ1 w - - 0 1 illegal: No possible last move
kB1BB3/1b4K1/n2Rp3/1p2Q1Rn/rP2qnr1/2N3n1/NQ3BRQ/N3nQ2 w - - 0 1 legal: proof: e4 f5 exf5 d5 g4 h5 gxh5 b5 a4 d4 a5 d3 cxd3 e6 d4 Bc5 d5 Bb6 axb6 Qd6 Bd3 Qe7 Bf1 Qd8 Ke2 Kd7 Kd3 g5 Kd4 c5+ Ke5 a5 b4 g4 d4 g3 f4 g2 h4 c4 f6 a4 f5 a3 f7 c3 f8N+ Ke7 f6+ Ke8 f7+ Ke7 h6 c2 b7 a2 h5 Qc7+ d6+ Kd8 h7 Qc5+ d5 Qc3+ Qd4 Qb2 h6 Ra6 d7 Kc7 d8R Ra5 d6+ Kc6 d7 Qc3 Ne2 g1N Rh2 Qd2 Bg2+ Kc7 Nbc3 Ne7 Kf6 Nf5 Qe5+ Qd6 Be3 c1N Bc6 Ra6 Rg2 Ra7 Bf2 Rg8 h8Q Ra5 h7 Nb3 Nc1 Nc5 Rg5 Nba6 b8B+ Kb6 Rb1 a1N Rb2 Qc7 N1a2 Ng3 Qg7 Qa7 h8Q Bb7 Qh2 Nh3 Rd2 Nc2 Rd6 Ne2 Rc8 Ra4 d8B+ Nc7 Kg6 Ng3 Nd7+ Ka6 f8Q Nd5 Qf3 Qa8 Qfe2 Nf6 Qf1 Ne1 Rc7 Nce4 Nc5+ Kb6 Kf7 Nf4 Nb3+ Nc5 Na1 Ka6 Qg6 Kb6 Qb1 Ka6 Qb2 Kb6 Rh5 Rg4 Rg5 Ka6 Kg7 Kb6 Rd4 Na6 Be8 Bd5 Rc8+ Kb7 Rc5 Bc6 Rd6 Bg2 Bbc7 Ka7 Rg6 Qe4 Bb8+ Ka8 Rcd5 Qe2 Rd2 Bb7 Rg5 Qd3 Bd4 Qb1 Rg2 Qe4 Bf2 N6h5+
kq1B4/qpQ2N1B/2p1R2K/1P4bb/N1R1n2R/1B1QQ2B/1n4Q1/q1rq1N2 w - - 0 1 illegal: No proof kernel
4k2B/1R6/QR1pB3/R1N2BQq/1NbnNQrB/pp6/P1R1n3/rb2K2n w - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Bh6 dxe5 Bg5 hxg5 Ke7 Bf4 Kf8 Bc1 Ke8 f4 a5 e4 b5 c4 h5 e6 d6 f6 a4 c6 g3 e5 b4 c7 b3 c5 a3 f5 g2 f7+ Kf8 c6 h4 e7+ Kg7 f8B+ Kf7 e8R h3 f6 h2 e6+ Kg6 f7 Rh7 e7 Ba6 c8B Qb6 c7 Ra7 Bc4 Bb7 Bb2 Nh6 Qd4 Bd5 Bf5+ Kh5 c8Q Bf3 g6 Qb4+ Nd2 Ng8 g7 Be4 Ne2 g1N Nc1 Ra8 Qa6 Qc3 Bce6 Qc6 Nd3 Ne2 Rc1 Qc2 Nb4 Nc6 Rb8 Nh6 e8R Qc5 g8Q Bb1 Rb7 Ng4 Rc2 Nf2 Qf4 Ncd4 Reb8 Rh8 Rg1 h1B Be7 Bd5 f8N Bc4 Ne4 Nh1 Bh4 Ra7 Rb6 Rg7 R8b7 Rg4 Nd7 Qd5 Ndc5 Rh7 Bc8 Rhg7 Bfe6 Kg6 Qd8 Qh5 Qdg5+ Kh7 Bf5+ Kg8 Bce6+ Kf8 Rg3 Ke8 Rd3 Nc6 Rd5 Rc7 Bh8 Ncd4 Nd7 Rc6 Ra5 Rc5 Nd2 Re5 Nc5 Re3 Nde4 Rf3 Qh2 Rf1+ Kd2 Rc1 Qhf4 Rcg1 Rc1 Bbd3 Rc3 Rb1 Rc1 Ra1 Ke1 Bb1 Rc3 Qh7 Rc2 Qh5
3r4/3PQQ1R/p1b2b1N/k3BR1p/1pQ1Br2/3qN2K/2N2nrR/B2nQB2 w - - 0 1 illegal: No proof kernel
1n1BQN2/2p1rqkB/P1p5/bRN5/BQ1nb2p/1r5K/3N1RnB/RQ1R4 w - - 0 1 illegal: Other
N1R1r3/kN5N/1nK4Q/1P4rp/Bp1bpB1Q/1BB4q/1nR1N1b1/q5RQ w - - 0 1 illegal: No proof kernel
1R1R2n1/nbN3Q1/R1Nqp3/Q1p1P2R/B1p1k1K1/2n2rQ1/B2B4/1bbB2N1 w - - 0 1 illegal: Other
r4q2/1p2QQ1R/RQ3Bpn/BRK1nqPk/2BNN1q1/5p2/Q3rNN1/5b2 w - - 0 1 legal: proof: f4 a5 b4 e5 fxe5 d5 bxa5 g6 c4 Ra7 cxd5 Kd7 h4 Ra8 h5 Bg7 h6 Ke7 hxg7 Ke8 Kf2 c5 Ke3 f5 d4 Kf7 g4 h5 a4 h4 e6+ Kf6 e7 Kg5 e8R h3 a6 h2 a5 c4 d6 c3 d5 c2 Kd4+ f4 e4 Rh4 e5 Ra7 d7 Nh6 g8Q Nc6+ Kc5 Rh5 e6 Ne7 d6 Ra8 a7 Rh4 a6 Nf7 Nd2 f3 Bb2 c1Q+ Bc4 Nh8 Qb3 Nc6 e7 Rb8 a8N Rh6 a7 Rh3 Qf7 Qd1 Ne4+ Kh4 g5 Nd4 Nc7 Kh5 a8Q Qb1 Ne6 Qc1 Ra6 Qd1 Qb6 Qf1 Nf4+ Kh4 Ng2+ Kh5 Nf2 Qc1 Ne2 Nc6 Bf6 Qg1 Nd4 Ne5 Rf8 Qb1 e8N Qf5 Rb1 h1Q Rb5 Qe7 d8Q Rh2 Qdc7 Qd8 d7 Qg1 Nd6 Qe8 Rg8 Qf8 d8B Be6 Qfe7 Nhf7 Rg7 Nh6 Nde4 Bd7 Qaa7 Ra8 Rh7 Be6 Qd7 Bg8 Qe8 Be6 Qf7 Bd5 Ne3 Qgg4 Ng2 Be6 Qa5 Bd5 Qa2 Bc6 Ba5 Bd5 Bb3 Bc4 Qb6 Bf1 Bc4 Qg8 Ne3 Re8 Nh3 Re2 Ng2 Ra8 Nhf2 Qf8
2N3Q1/N1BB2n1/pR1r1pnK/P2bn2Q/p3R1B1/Q1r1B1k1/1N2nq2/R2N4 w - - 0 1 illegal: Other
Q5R1/p1QpNb2/K1NnN2R/RpBPb1b1/7n/N7/2r3B1/QqkbBR2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 exf5 c4 a5 c3 bxc3 Na6 c4 Rb8 c5 Rb6 axb6 Bh6 Nf3 Bg7 Ng1 Bf8 g4 Kf7 c4 e5 f4 h5 d4 h4 Kd2 e4 Kc3 e3 g6+ Kf6 g7 h3 b7 h2 b8N e2 c6 e1B+ Bd2 Bh4 g5+ Ke7 f6+ Kd6 f5 Nh6 g8N Nc5 Kb4 Na4 g6 Bg5 c5+ Kd5 g7 Ke4 f7 Nb6 Ka5 Qe8 c7 Bd6 f8R Nf7 c6 Bgf4 f6 Be3 Be1 Qe5 Nf3 Rh5 Ng5+ Kf4 Ne7 Qe4 g8R Ne5 f7 Bb7 c8Q Ng6 c7 Bd5 Ka6 Be5 Nbc6 Nc4 Ra5 Nd6 Qa8 Bd2 c8Q Ke3 Na3 Qc2 Rg1 h1B Qa1 Qb1 Qc7 Bhf3 Rh1 Bd1 Bh3 Be6 d5 Rh7 Bf1 Rh2 Bh3 Re2 Bg2 Kd3 Rf1 Nh4 Rg6 Be3 Rh6 Rc2 Rg8 Bd2 Nh7 Bg5 Nf8 Bf5 Ne6 Bg6 Bg3 Kd2 Be1+ Kc1 f8B Bgh5 Ng6 Ne8 Bc5 Nd6 Nge7 Bf7
k2r1K2/pb2p2N/1Q1B1p2/4P3/1QB1QR2/1Rb1p1B1/3nr1q1/nN1R1BRN w - - 0 1 illegal: Other
Nkr2b1n/RB2Q1pn/p3nq2/R1K5/P1NR2p1/1bBQB2Q/2p1NN2/2R5 w - - 0 1 illegal: Other
NkN3rN/brq2K2/4BQQp/pR5p/4R2B/P2nQB2/bBr1p3/3R2Q1 w - - 0 1 illegal: Other
N1b1B3/rp1q4/2pnq2n/2Rr4/kB5p/N1R4p/QQPRR1N1/B1Q1Q1K1 w - - 0 1 illegal: Other
1rbQN1kN/B1N4R/R2N1n2/BNN3Bp/BR4pb/Pqb3K1/8/3b4 w - - 0 1 illegal: No possible last move
5kNN/B2Bb3/3R2rp/Q3b1RB/qb4K1/r1q1RPNR/1n5B/R2rR3 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Bc8 b5 Be6 h3 g5 Qf3 Nc6 Qd3 Nd4 Qc2 Bf7 Qd1 Bh5 h4 Bf3 gxf3 g4 Kf2 Ne6 Ke1 Ng5 hxg5 Rc8 Bg2 Rb8 Bf1 Ra8 Kf2 c5 Kg3 e5 d4 a5 b4 h6 d6 e4 d5 c4 f6 e3 d7+ Kf7 d6 a4 g6+ Ke6 f7 e2 f5+ Kf6 g7 e1R b6 a3 b5 c3 b7 a2 b8R c2 b6 Ra3 b7 Qc8 d8R Re2 d7 Ke7 f6+ Ke6 Re8+ Ne7 d8R Ra8 g8B Qc4 Qe1 Qb5 Rd6+ Kf5 Qa5 Kg6 Be3 c1Q Ba7 Qb6 Bh3 Re1 Ne2 Qcc5 Nd2 Nc6 Re3 Qc2 Rbe8 Qbb3 b8B Nb4 Ne4 Be7 f8R Qbc3 f7+ Kg7 Nf6 Qa4 Bh7 Rb1 Ng8 Nd3 Bg6 Rd1 Bh5 Nb2 Rh2 Qd7 Kf4 g3 B3g4 g2 Rh3 g1B Ng3 Qb5 Bd7 Qa4+ Kf5 Rh7 Re1 Bc5 Bc7 Qaa3 Kg4 Bb4 Re3 Qa4 Re1 Bg5 R8e3 Be7 Rc8 Rh8 f8N Rh7 Ng6 Kf7 Rb1 a1B Bcb8 Rg7 Rc5 Qcb3 Rg5 Qc3 Nh8+ Kf8 Bd4 Rg6 Be5 Ra6 Ba7 Qab3 Nh1 Qa4 Bh2 Qac6 Ng3 Qa8 Qb6 Ra3 Qa5 Qac6 Rc1 Qa4 Nf1 Qcc2 Nf7 Nc4 Nh8 Be5 Ra1 Nb2 Ng3 Qc3
rBBR2RN/2B3R1/rQN3R1/1bp2N2/3PK2b/8/kbb1B3/1bn2RRr w - - 0 1 legal: proof: c4 b5 h4 g5 f4 f5 a4 d5 cxd5 e5 axb5 Nc6 fxe5 f4 g3 Nd4 g4 Nf5 gxf5 g4 Ra5 Bc5 Ra1 Qg5 hxg5 Bf8 Kf2 Ke7 e4 c5 d4 a5 b4 h5 g6 a4 g7 f3 Ke3 f2 b6 a3 f6+ Kf7 d6 Ke6 b7 g3 b8B a2 f7 g2 b5 h4 b6 h3 b7 h2 d7 Ra6 d8R Rh5 Nc3 Bd7 Qb3+ Ke7 e6 Ba4 e5 Bb5 Nce2 Ba4 Ng3 Rh4 Nf3 g1R Be2 f1B Qb6 Bh3 Ng5 Rd1 Rg1 Nf6 g8R h1B Rg7 Bhc6 Bc7 Bf5 b8N Ne4 Kf3 Bh7 Bf4 Rd2 Raf1 a1B Rg6 Bh6 f8R Rh1 Nf7 Bb2 Nh8 Bc2 Rfg8 Bg5 Ke3 Bh4 Kf3 Be8 R8g7+ Kf8 Nf5 Nf2 Bg3 Nd3 Nc6 Rd1 Ke4 Rda1 Rd6 Bd7 e7+ Ke8 Rg4 Ra8 Rdg6 R1a6 R4g5 Bc8 Rg8+ Kd7 e8R Bb7 Rb8 Bc8 R6g7+ Ke6 Bh2 Bd7 Rbd8 Bb1 R5g6+ Bf6 Ke3 Kd5 e6 Kc4 e7 Bh4 e8B Kc3 Ke4 Kc2 Nb4+ Kb3 Nc6+ Ka2 Bb8 Bc2 Bhc7 Bb1 Nce7 Bb5 Bd7 Bc2 Nc6 Rh3 Rf6 Nf2+ Kd5 Bb1 Ng3 Rh1 Bc8 Bhc2 Rfg6 Nd3 Nf5 Nc1 Ke5 Nd3+ Ke4 Nc1+
2R2Rq1/2Rr2k1/N2BqnB1/5Q2/1n1NnRP1/n1B3RN/R2p1N1n/Kr6 w - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 f5 e4 b4 exf5 b3 f6 Nc6 g3 Ba6 axb3 Bb7 b4 Nb8 b5 Bc8 f5 g6 h3 Bh6 Na3 Na6 Nb1 Bf4 gxf4 Nb8 Rh2 g5 Qd3 g4 Qd5 g3 Rh1 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Bc4 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 e5 b4 h5 Kb2 a5 c4 d5 b6 e4 b5 a4 c6 e3 c7 h4 c8R e2 c5 e1Q c6 g2 c7 d4 b7 d3 b6 h3 Ra2 h2 Qc2 a3+ Ka1 d2 Nh3 g1N Bb2 Qe3 Nc3 Qed4 Bd3 Rh7 Ne4 Rh6 Bc3 Rh8 Nef2 Ne2 Rg1 h1N Rg3 Na6 b8B Qe4 b7 Kf8 f7 Ng1 Qb1 Ke7 f8R Ra7 f6+ Ke6 f7 Nf6 Qb5 Nb4 f5+ Ke7 Bc2 Nf3 Qd3 Nh2 Qb5 Nd7 f6+ Ke6 Qg5 Rh5 Qf4 Rb5 Bd3 Qe8 Bb1 Qh7 Bg6 Qg8 Qg5 Kd6 Qf5 Qe6 Rfd8 Rb6 f8N Rb5 f7 Ke7 Re3 Nf6 Rd4 Rb6 Rf4 Ng3 Ref3 Nge4 Rg3 Qc4 Ne6 Qe2 Nd8 Kf8 Nc6+ Kg7 f8R Qec4 Nd4 Qce6 Rce8 Rb5 c8R Rb6 Be5 Rb5 b8N Rd7 Rc7 Rb7 Rc2 a2 Na6 Rb8 Bd6 Rb5 Kb2 a1N Rec8 Rb6 Kb1 Rb7 Ra2 Nac2 Kb2 Na3 Ka1 Nbd5 Nc2 Rb3 Nd4 Nb4 Rfd8 Rb2 Rf8 Rb1#
4qNB1/R4nkB/2n4R/1nN1N3/2PN1Bqn/2RpN3/1b2B3/qNQK1b2 w - - 0 1 legal: proof: d4 h5 f4 c5 dxc5 a5 a4 g5 h4 f5 g4 b5 axb5 Bb7 gxf5 g4 e4 Ra7 e5 Rh7 f6 Rg7 f5 Rg5 hxg5 Bc8 Qe2 Qc7 Qd2 Kd8 Qd1 Ra6 f7 Rf6 exf6 Qb6 Bd3 Kc7 Be2 Kb7 Bc4 Qd8 Bf1 Kc7 c4 d5 b4 Kd7 b6 e5 g6 d4 b5 d3 c6+ Kd6 b7 e4 b6 Ke5 c7 a4 g7 g3 Be2 g2 Nf3+ Kd6 Nh2 Ke5 Nf1 g1N Ne3 Nh6 g8B Nc6 b8R a3 b7 Bg7 f8N a2 f7 Kf6 Ne6 h4 f8N h3 Nd4 h2 Ng6 Nf7 Ne5 Qe8 Qc2 Be6 c8B Nf3+ Kd1 Nh4 Bd2 Bh8 Qc1 Kg7 Ra8 Bd7 b8N Be6 Na6 Bd5 Re1 h1Q Ra7 Qg1 Nc5 Qg4 Rh1 Be6 Ra3 Bd7 Rc3 Be6 Nf1 e3 Bh7 Bd5 Be6 Bg2 Bd5 Nd6 Bdg8 Nb5 Ng3 Bf1 f6+ Kh6 f7 Bf6 f8N Kg7 Bf3 e2+ Ke1 Qa8 Bf4 Qe8 Kd2 e1N Be2 Nef3+ Kd1 Ng5 Ngf5+ Kh8 Rh2 Nf7 Ne3 Kg7 Na3 Nf5 Rh6 Nh4 Rb1 Nba7 Rb7 a1Q Nb1 Nb5 Ra7 Be7 Nb7 Ba3 Nc5 Bb2
n1k2q2/1N3R1B/1R2PN2/rN2N1Bp/RB5b/5Qr1/pN2n1q1/R1nK2N1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 b5 g4 f5 a4 e5 fxe5 Nh6 axb5 Be6 h3 Bf7 Rh2 Ng8 Rh1 Bh5 gxf5 g4 Ra4 g3 Ra1 Bg4 hxg4 Bc5 Bg2 Bb4 Bf1 Bf8 b4 Kd7 d4 c5 e4 h5 e6+ Kc7 g5 a5 b6+ Kc8 e7 c4 e8N a4 e5 a3 e6 c3 g6 c2 f6 g2 d6 a2 g7 Ra4 f7 Qe7 d5 Na6 b7+ Kd8 b8N Qf6 d7 Rh7 b5 Ra3 b6 Qd4 b7 Qf6 Nd6 Qb2 Nc4 Nc5 Nc6+ Kc7 d8R Ne4 b8R Rh6 Bg5 c1Q N6e5 Qb6 Nb2 Qcc5 Qf3 Qba5+ Kd1 Ne7 g8N Qa8 Rh4 Nd2 Ra4 Nc8 Nf6 Nb6 Nc3 Be7 f8B Nb3 Bd3 Nc1 Bh7 Rg6 Rd6 Qcc6 Rb7+ Kc8 Nb5 Qb8 Rdd7 Na8 d6 Bd8 Rb6 Qcb7 Be3 Rg3 Rf7 Qe4 Bg5 Qeb7 Nh3 g1N Be7 Nge2 Ng1 Qe4 Bf8 Qg6 Be7 Qg8 Bf8 Qb7 Be7 Qf8 d7+ Kb8 Bb4 Be7 d8N Kc8 Qf4 Qg2 Nb7 Bd8 Ne8 Bf6 Qf3 Be7 Bgd2 Bh4 Nf6 Rc3 Bg5 Rc5 Nc3 Ra5 Nb5 Qe8 Ra6 Qh8 Rb6 Qf8
2b4Q/br1RK1n1/N4b2/1kN5/5pBN/1BBq3B/1RpNNN1P/R1b3r1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Nc6 d5 Na5 bxa5 Bd7 Bb2 Bh3 Bc1 Bc8 Kf2 Kd7 Kg3 c5 Kg4 g5 Kf5 g4 e4 a3 d4 a2 d6 g3 a6 g2 b6 Kc6+ e6 c4 e5 f6 d7 c3 e7 c2 Ke6 f5 e8N f4 h6 Ba3 a7 Nf6 b7 Be7 b8N+ Kb6 d5 Rf8 d6 Nh5 h7 Qc7 h8N Bb7 d8N Rf7 d7 Bd6 Bd2 Ng3 Bc3 Qc5 Na6 Qb4 Qd4+ Qc5 Ng6 Bc8 Ne2 g1B Nh4 Nf5 Nd2 Bb8 Nf6 Rh7 Nb7 Bd6 Ng4 Kc6 Bh3 Qb6 Nf2 Rg7 Nbc5 Bb7 d8R Rg4 Rd7 Rb8 a8B Kb5 Kf6 Qc6 e6 Qf3 e7 Bc8 e8B Ng7 Bf7 Qd3 Bf3 Rb7 Bb3 Be5+ Ke7 Bf6+ Kf8 Rg3 Bfg4 Rg2 Rb1 a1B Qe5 Bb2 Kf7 Bc1 Rb2 Kb6 Qe8 Kb5 Qh8 Be5 Ke7 Rg3 Nfe4 Bgd4 Rd1 Rg1 Nf2 Bb8 Ra2 Ba7 Ra1 Bb2 Rdb1 Bc1 Rb2 Bf6+
R1RnR1Bq/5Bq1/3K2nq/1NB1N2k/3N1R1q/1p2b3/pP1b4/1R1RB2Q w - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 f5 g4 a5 e4 b4 exf5 Nh6 f4 Kd7 f6 Ng8 f7 Ra7 Qb3 Rb7 Qd1 Rb5 axb5 Bb7 Ra4 Ba6 Ra1 Bc8 b6 h5 f5 g5 h3 Kd6 f6 Bf5 Ke2 Kd7 gxf5 g4 Kf2 g3+ Ke1 Rh6 Qb3 Rg6 Qd1 Rg4 hxg4 Qe8 Qb3 Qc8 Qd1 Qd8 Ke2 e5 Kd3 c5 Kc4 h4 d4 e4 d6 a4 Kd5 b3 g5 a3 g6 c4 g7 h3 b7 h2 Nf3 c3 Bd2 c2 Be1 c1Q Nc3 e3 Bc4 g2 Rb1 g1B Nb5 Qc8 Ne5+ Kd8 d7 Bb4 f8N a2 f7 Ke7 d8R Kf6 Ne6 e2 f8B Bf2 Bc5 Qg5 Kd6 Qg3 d5 Ba5 Ned4 Kg5 f6 Qf3 f7 Qg2 f8R Be3 Rf4 Kh5 Re8 Ne7 g8B Nbc6 b8R Qg7 Ra8 Bad2 Bg3 Qe6+ Kc7 Kg5 d6 e1Q d7 Qh3 d8R Ng6+ Bcf7 Qhh8 Rdc8 Nd8 Kd6 Qf2 Re1 h1Q Qf3 Q1h6 Qh1 Qfh2 Red1 Q2h4 Be1 Kh5
K2q1rbB/4k1p1/2Rn1R2/1pB5/Rp4Br/1R4R1/2NNNRP1/1bQ1B2b w - - 0 1 illegal: Other
R1B4N/2Bp4/1r1K2nR/2RB4/pN1PbBb1/Q4nN1/pN1r1Nn1/4k2N w - - 0 1 illegal: Other
N1B1BRq1/2rK2R1/2R1p1p1/P6k/2Rp3b/B1RQNn1B/1N5R/1b1qb3 w - - 0 1 illegal: No possible last move
N1B1K2N/4Np2/4rb2/1qN1n1B1/3RR2Q/1B1n1p2/1k1NP1pn/R3nR1N w - - 0 1 illegal: Other
B1qRQ2n/R3BR2/RR3N2/r2Nk1K1/1P1N3r/1bB1b3/n5b1/rNq2qR1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 f6 h4 f7 a4 b7 e6 g6 a3 g5 c2 g7 a2 g6 h3 Ne2 h2 Bd2 c1R Qe1 Rh3 Bc3 Nf6 g8N e5+ Kg5 e4 f4 e3 f5 Nc6 b8R Nh5+ f6 Qd7 g7 Qd8 Rg1 h1B Ne7 Rh4 g8N Ng3 Bg2 Rf4 Rb6 Ra5 Ra6 Bg7 f8R Be6 f7 Qc8 Nf6 Bh8 Ra7 Nd8 Re8 Rd1 f8R Bg8 Bf3 Bg2 Be4 Be6 Rf7 Bg7 Rg8 Bf8 Rg6 Bg7 Nc1 Ne2 Nb3 Nc1 Qe2 Bf8 Qb5 e2 Qe8 e1Q Bf3 Nc6 Rh6 Ne5 Rg6 Qf1 Ra6+ Kc7 d6+ Kb8 d7 Kc7 Ra7+ Kd6 d8B Bd5 Rh6 Ng6 Be4 Bc4+ d5 Nh8 Nd4 Ke5 d6 Bb3 d7 Re1 Ned5+ Be7 Qf8 Bc5 Be7 Bb6 d8R Bc5 Qe8 Bb6 Na3 Rd1 Rb1 a1Q Rg6 Qb2 Ra1 Na2 Nb1 Qc1 Ng8 Bc5 Rb6 Re1 Ngf6 Qb2 Nc7 Ra4 Na3 Nc1 Ne2+ Bd4 Ba8 Rd1 Be1 Be3 Nd4 Qb1 Ncd5 Qbc2 Nb1 Q2c4 Ra3 Na2 Nd2 Ra1 Nb1 Qc1 Bc3 Ra5 Rf8 Rb5 R3a6 Ra5 Rf7 Rh4+
1nR2b2/BNn2rk1/R2R2NR/1n1q4/1n2bN2/1NP3R1/nB1b3r/1B3RQK w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 Kf2 g5 Kg2 a5 h4 d5 b4 e5 b6 a4 c3 g4 b5 g3 h6 d4 f6 a3 f5 e4 c6 d3 b7 d2 c7 e3 h5 e2 b6 e1B h7 a2 h6 Qd6 Bd3 Ra7 Ne2 Qe7 Rh3 Ra6 Nf4 Nc6 b8N Qe2+ Kh1 Bb7 c8R Ra7 Bb2 Qh5 Nd7 Nge7 Nc5 Rg8 h8R Nd5 h7 Ndb4 Be4 Ba8 b7 Nb8 Qg4 d1N Nd2 Ne3 Ndb3 Rg5 Bb1 Ned5 Rg8 Rg7 h8R Bd2 Rh6 Nc7 Qd1 Rg4 Rgg6 Rg5 Qg1 g2+ Kh2 Qd1 Rd3 Qf3 Rd6 Qd5 Rg8 N4a6 Rgg6 Nb5 Rg8 Nac7 Rgg6 Nba6 b8B Rb7 Ba7 Nb8 Rh3 Rg4 Rgh6 Kg8 f7+ Kg7 Rg3 Rg6 Qd1 g1N Qe1 Ne2 Qg1 Rb6 Nb7 Nc1 Rf3 Rg2+ Kh1 Be7 f8N Ra6 Nd7 Bf8 Ne5 Ra4 Rd3 Re4 Neg6 Re7 Rg3 Rf7 Bc2 Nd3 Rf1 a1N Bb1 Nb4 Ra6 Nac2 f6+ Kg8 Rd8 Na2 Rd7 Ncb4 Rdd6 Rd7 f7+ Kg7 Rdc6 Bd6 f8R Rf7 Rfh8 Bf8 Rd6 Qf5 N7a5 Be4 Nb7 Qg5 Rh2 Qd5 R2h6 Be7 Re8 Bf8 Rc8 Rh2+
k1q1n2N/1nR2nrr/3r2B1/3r2B1/P1BQB3/6BK/b2NNR1b/bR1N1B2 w - - 0 1 illegal: No possible last move
1R4qB/Rb2NrR1/4q1n1/b4N1k/N1BB4/P1r1Bq2/nB1R2B1/2q1KQ1q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kf7 h4 e5 d4 g5 d6 b5 d5 c5 a6 c4 f6 g4 d7 g3 f5 c3 h6 c2 a7 g2 h5 b4 d6 e4 h7 e3 h6 e2 Nc3 b3 Nf3 g1Q Nh4 b2 Na4 b1Q Be3 Qe7 d8N+ Ke8 f7+ Kd7 f6 c1Q Nc6 Ke6 d7 Qbc2 d8R Qcg6 Nf5 Qea3 Nce7 Bb7 Rd2 Na6 Rh3 Bg7 f8B Kf7 Rg3 Rc8 a8B Qh1 Rg2 Nb4 Rg1 Ba6 Bag2 Bb7 Bd4 Qf3 Bb2 Ke6 f7 Bc3 Bg7 Qgg4 f8B Kf7 Bd4 Rc6 Be3 Kf6 Bd4+ Kg5 Bfg7 Rc4 Be3+ Kh5 Bgd4 Qg7 a3 Na2 Rb1 Qc2 Rc1 Ba5 Rb1 Qb3 Rc1 Rc8 Rc7 Qe6 Rd7 Rc3 Qa1 Ba8 Ra7 Bb7 Qb1 Nf6 Qd3 Rf8 h8R Rf7 h7 Nd5 Rb8 Nf4 h8B Qf8 Bh3 Qg8 Rg7 Ng6 Bg2 Qf4 Bd5 Qhf3 Bg2 Q4e4 Qb1 Qc2 Qd1 Qc1 Bc4 Qfd5 Kf2 Qc2 Qg1 Qde4 Kg3 e1Q+ Qf2 Qh1 Qf1 Qg4+ Kf2 Qf3+ Ke1 Qc1+
1R3b2/2RR2Nq/2Q1NBn1/2B1P1rr/1q2r3/1NNKN1Rb/1b6/1Nrnk2B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 Kd2 f5 e4 c5 b6 f4 h6 a4 e6 Kf6 e7 a3 e8N+ Kg6 b5 g4 d6 Kh5 d7 a2 b7 c4 h7 c3+ Kd3 c2 d5 f3 e5 f2 b6 Be7 d6 Na6 b8N Ra7 b7 Bg5 Nc6 Qc7 d8R Qb8 d7 Qc7 b8R Bf4 Ba3 c1B Qa4 g3 Na5 Kg4 h5 g2 h6 Kg3 Nb3 Bb2 Bc5 Ne7 Ng7 Ng6 Qc6 Bd2 Rh4 Bb4 Rc4 Ra8 Be2 f1R Bf3 Rc1 Rg8 Qa7 d8N Nc7 Nde6 Nd5 Be4 Ne3 Ne2+ Kf2 Nec3 g1Q Bh1 Ke1 Rd4 Qa4 Rd7 Qh2 Rc7 Ra7 Rd8 Nd1 Rdd7 Rg8 h8B Qa3 h7 Ra4 Nh5 Qh4 Bf6 Rg7 h8N Rh7 Bd4 Bf8 Bc5 Re4 Nf7 Qb4 Nhg7 Rh5 Nh6 Rg5 Ng4 Qh7 Na3 Rh5 Rb1 a1R Ne3 Ra2 Ra1 Rg5 Nab1 Ra4 Ra2 Rh4 Ra3 Rhh5 Qb5 Bb7 Qa6 Bg2 Qc6 Bh3 Ra2 Ba3 Rg2 Bb2 Rg4 Qa5 Rg2 Re4 Rg3 Qb4
kb1R2Nr/brqBBb2/q5P1/R2nQK1R/r2NN2r/N2N3N/1n5B/7R w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 b4 Kb7 d4 a5 g4 h5 f6 c4 d6 a4 b6 c3 g6 e6 g7 a3 f7 c2 d5 h4 d7 a2 d6 h3 g5 e5+ Kf5 e4 f4 e3 b5 h2 g6 e2 Qd5+ Nc6 Nh3 e1B Qe5 Nf6 g8N Be7 f8R Nb8 Ba3 c1R Rf7 Nh5 Rh7 Nf6 Rh5 Nd5 Bb4 Nc7 Na3 Bc3 Bc4 Ra4 Be6 Qe8 d8R Rh7 d7 Bh4 Be7 Ka8 b7+ Ka7 Qh8 Bf2 Qe5 Nc6 b8B+ Ka8 b6 Nd5 Bc7 Rb1 b7+ Ka7 b8N Na5 Nc6+ Ka8 Nb4 Ba7 Nd3 Nc4 Nc2 Rb2 Rhe1 Rh8 Qe2 h1Q Ng5 Bb6 Ba3 Nf6 Nh3 Bd2 Kg5 Qf7 Re8 Ba7 d8N Rab4 Nc6 Ng4 Rd8 Qh2 Rh1 Qd7 Bb8 Be1 f5 Qb7 f6 Qa6 f7 Bb7 f8N Bg3 Kf5 Nf6 Nd7 R2b3 Qe4 Nb2 N7c5 Be5 Qd5 Rh4 Ne4 Bc8 Qd4 Nd5 Be7 Rb7 Qc3 Bd6 Qf6 Bd7 N6d4 Be8 Bd7 Bf7 Qg7 Bb4 Bc7+ Bb8 Qf6 Bc5 Bf4 Ba7 Qe6 Qd2 Qe5 Qda5 Bh2 Qc7 Rab1 Nc4 Rb5 a1R Ra5 Ra4 Na3 Nb2
q3BRBQ/4k3/2BpN1b1/N1PB3B/1R2nr2/rR1KBN2/r2bn1R1/1n4b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 a5 c4 h5 e4 f5 g4 a4 b4 a3 g6 h4 g7 h3 e6 f4 e7 h2 e5 d6 g5 a2 c6 f3 c5 f2 b6 Bb7 g6 Rh4 b5 Rh6 c7 Bc6 c8B Nd7 b7 Rh7 b8R Bb7 b6 Bf3 b7 Be2 Nf3 Bd3 Bg2 f1R Rg1 h1N Na3 Ba6 Nc4 Nf2 Na5 Nd3 Rb1 a1B Rb3 Ngf6 g8B Re1 g7 Rh3 Bd5 Nf4 g8B Nb6 Bg4 Bd3 Bh5+ Bg6 Rc8 Bh6 b8R Na4 R8b4 Kd7 e8N Re4 e6+ Ke7 Ng7 Ne2+ Kd3 Bd4 Be3 Nac3 Qa1 Nb1 Bh1 Qe8 Rg2 Qc6 Rf8 Rf4+ Kc4 Ne4 Kd3 Bg5 Qc3 Bh4 Qa1 Be1 Qb2 Qe8 Bc6 Bd2 Bd5 Kd8 e7+ Kd7 Qa1 Qd8 e8B+ Ke7 Ne6 Rh2 Nc4 Ra3 Na5 Qa8 Qb2 Bf6 Qc3 Bh4 Qe5 Bf2 Qh8 Bg1 Rg4 Bc1 Nfd4 Ng5+ Bde4 Nec3 Bf3 Rha2 Rg2 Rf5 B4c6 Rf4+ Bfe4 Bd2 Nf3 Ne2 Kc4 Rf5 Bed5 Ne4 Kd3 Rf4
n2n1r1B/P3k3/Q4r1p/Rb5B/bNN5/BN1N4/KnN2Bqb/RR2Nr2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 e5 Kd2 b5 Kc2 c5 Kb2 e4 g4 b4 a4 e3 f4 e2 d6 e1R f6 h6 a6 c4 d5 b3 a5 Bd7 a7 Bc8 f7+ Kd7 a6 Re3 g6 Qc7 g5 Rh3 g7 Qc5 f5 Bb7 g6 Bc8 f6 Rh7 Be2 Qb4 Qf1 Qa5 Bh5 Rc3 Nf3 Re3 Nbd2 Qd8 Ne1 Be7 f8N+ Ke8 Ne6 Rh3 f7+ Kd7 f8N+ Ke8 Nc5 Rg3 Ncd3 Rh8 Ne6 Bf8 d7+ Ke7 Nd4 Rh7 Ndc2 Nf6 g8R Ne8 g7 c3+ Ka3 b2 Nb3 Rf3 Ka2 Nc6 d6+ Ke6 Be3 Rf6 Bf2 Nc7 Rh8 Qe8 d8B Qg6 g8N Rhf7 d7 Qg2 Be7 Nd8 Ba3 Bd6 Ne7 Bh2 Nc6 Bb7 N6b4 Bc6 Rg8 Ba4 Rg5 Ke7 Ra5 Rb8 a8N Rc8 Ncd4 c2 Nb6 Na8 a7 Rf8 Nc4 b1B+ Kb2 c1N Ndc2 Na2 Rg1 Nc3 Rh1 Ba2 Rb1 Nd1+ Ka1 Nb2 Qe2+ Ne6 d8B+ Kd7 Bc7 Ke7 Be5 Nd8 Rg1 Rcc6 Rf1 Rf4 Bh8+ Re6 Qe4 Rf3 Qc6 Ref6 Qa6 Bb5 Nbc5 Bb3 Rh1 B3a4 Nb3 Rd6 Ka2 Rdf6 Ra1 Rh3 Rf1 Bb8 Nf3 Rh1 Rfb1 Bh2 Nfe1 Rf1
2N1n1KN/1N1B1R2/1Pr2B1N/bnr1R3/1pk4B/R6N/1q2Nr1Q/2Bnq2b w - - 0 1 illegal: No proof kernel
1Nq2n2/1Rq1BN2/P2r1R2/1R3B1k/B2p2br/3Qn1RB/1r1N2B1/1bKBb3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 a4 e5 f4 b5 c4 h5 g4 d5 c6 d4 c5 b4 c7 e4 c6 b3 a6 b2 g6+ Kf6 a7 h4 g5+ Kg7 a5 h3 a6 h2 Be2 Qe7 Ra5 Qf6 Rb5 Qe6 Nf3 Bd6 f6+ Kf8 f7 Kg7 f8R Qf5 Rf6 Bd7 c8B Nh6 c7 Ng8 Ne5 Nh6 Nf7 Qe6 f5 Kf8 g7+ Ke8 g8R+ Bf8 g6 Qb6 g7 e3+ Kc2 Ke7 Qd3 Ng4 Bd1 e2 Bg5 e1Q Nd2 b1B+ Kc1 Rh6 Rg1 h1R Rg3 Qg1 Rh8 Qa5 g8B Ne3 Rh7 R1h4 Rg7 Qg2 Bh7 Be6 Bd7 Qh3 c8B Qc7+ Bc6 Nd7 Bg6 Rb8 a8B Qf4 Bg2 Ke8 Bac6 Bb4 Rh7 Ke7 Rg7 Nf8 B8d7 Qhg4 Bh3 R4h5 Bcg2 Qc7+ Rc5 Bc2 Nd6+ Bf7 N2c4 Qa5 Ba4 Rc8 Rb5 Nf1 Bd2 Nd7 Re6+ Kf8 f6 Bb1 Bdb3 Ne3 Bc2 Rh4 Bd1 Qd8 B6e4 Bh5 f7 Qf4 Rh7 Bg4 Bf5 Rc5 Rg7 Qc8 Be1 Ba5 Bb4 Rc7 Bc5 Be1 Nd2 Qe5 Reg6 Ke7 Rh7 Qg7 f8N Qf7 Rgg7 Kf6 Rh8 Rg6 Rh6 Kg5 Rgh7 Re6 Rf6 Qe7 Rhf7 Qed8 Re7 Kh5 Nf7 Rec6 Re5 Re6 Rb7 Rb6 Rd5 Rcc6 Re5 Rb2 Rd5 Nb6 Nd7 Qdc7 Nb8 Nd7 Re5 Nf8 Rd5 Bc2 Be7 Rd6 Rdb5 Bb1+
4qb2/Q4nBR/R1R1rBb1/1P4n1/r1K2N2/1p1N2B1/B1R1b3/bBNbBk2 w - - 0 1 illegal: No proof kernel
3R1nN1/2brB2q/2b1kpB1/nRn2r1P/n1NRBK2/N2Q2n1/N1N4N/2B5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 g5 d4 c5 h4 a5 b4 f6 d6 c4 d5 c3 e6+ Ke8 b6 g4 h6 a4 h7 c2 e7 Kd7 e8N a3 b7 g3 h5 g2 b5 a2 b6 Qc7 Rh4 Nc6 b8N+ Kd8 d7 Ke7 d8B+ Kf7 b7 Bg4 d6 Ra6 d7 Ne5 Qd3 Bb4 Kf4 Qb6 e4 Bc3 Nc6 Bb2 b8N Ne7 Nf3 g1N Bg2 Ra7 Na6 Ke6 Na3 Nc4 e5 Qb7 Ncb4 Na5 Nh2 Bf3 Rb1 a1N Na2 Bc6 Nd6 N1b3 Be4 Re8 h8N Nc5 Ng6 Na4 Ndc4 Qc7 N6b4 Ne2+ Ke3 Ng3 Kf4 Bd4 Rg4 Bb6 Rb2 Nef5 Ne7 Nh4 Ng8 Qb7 Be7 Bc7 d8R Ng6+ Ke3 Nf8 Kf4 Qa8 Na6 Qc8 Rb5 Qd7 N6b4 Rb7 Be3 c1N Nbc2 Ncb3 Bc1 Bb6 Bb4 Qh7 Be7 Rd7 Rh4 Nbc5 Rg4 Kf7 Rh4 Kg7 e6 Bc7+ Bd6 Bb6 e7 Kf7 Bh1 Rb7 Ke3 Qg7 Rd4 Rd7 Be4 Qh7 Kf4 Bc7 Be5 Rd5 Bd6 Re5 Ra8 Rc8 e8B+ Ke6 B8g6 Rd8 Be7 Rd7 Rd8 Rf5+
1n1n1Bk1/K6R/BR5R/R2N1bNp/3qR1n1/rP1b3Q/RN1n1Br1/3Nb3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 c5 Ke3 a5 g4 f5 d4 Kf7 g6+ Kg7 d6 c4 b6 h6 d7 a4 b7 a3 g5 c3 d5 c2 Kd4 f4 e4 a2 e6 f3 b3 f2 e7 Qa5 e8R Nf6 d8R Qe1 e5 Ra5 e6 Ng8 e7 Bg4 d6 Bc8 d7 Na6 b8R Nc7 Qd3 Rh7 Be3 c1N Nf3 Qd2 Nc3 Qe2 Rb6 Na6 Nd1 Bb7 Ra8 Re5 d8B Nb8 Ra5 Bd5 Kc5 Nf6 Bd4 Kh8 g7+ Kg8 Bc7 Qd2 Bd6 Ne2 Rh3 Kf7 g8R Ng4 Rh8 Rg7 Rh7 Nc3 g6+ Kg8 Ng5 Nb1 Be2 f1B Bf2 Qb2 Rh5 Re6 Qh3 Be4 Ba6 Bf5 Rh4 Re2 Rh5 Rf7 g7 Qd4+ Kb5 Nd2 Rh4 Nd7 Kc6 Nb8+ Kb7 Rf6 Bb4 Rc6 Ka7 Rc4 Ba3 Ra4 Bb4 Ra3 Bc5 Nf6 Re4 h5 Rd8 Nbd7 e8N Nb8 Rdd6 Ng4 Rdh6 Bd6 Bb4 Bg3 Nd6 Bh4 Nc4 Bg3 Be1 Rg2 Ncb2 Bd3 Bf2 Bh4 Bf8 Bg3 Rc1 a1N Rc4 Nc2 Rca4 Ra2 Ra3 Nb4 R3a4 Ra1 Ra2 N4c6+ Ka8 Qb4 Be3 Qd4 R2a3 Nb4 Ka7 Be1 Bf2 N4c6+ Kb7 Nd8+ Ka7 Rc1 Ra1 Rc4 R1a2 Rb4 Ne6 Kf7 g8N+ Qg7 Nf6 Ra4 Nd5 Ra3 Ng5+ Kg8+ Nc7 Qc3 Nd5 Qd4
4N1Nb/2P3b1/5BB1/3q1n1p/kNN2n1N/1bKQBB1r/3R1R2/1bN1r1Rn w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 a5 c4 h5 g4 e5 b4 d5 f4 Kd7 c6+ Kc7 c5 a4 g6 e4 g5 d4 g7 a3 f6 a2 g6 d3 f7 e3+ Kc3 e2 f5 e1N f6 d2 Bg2 Qd5 b6+ Kd8 c7+ Kd7 b7 Kc6 b5+ Kd7 c6+ Kd6 b6 Kc5 Bf3 Kb5 Na3+ Ka5 Ne2 Nc2 Nc4+ Ka4 Rh2 Bc5 f8R Be7 f7 Na6 b8N Qd8 b7 Bh3 c8B Bg4 Bf5 Nc5 Na6 Ne6 b8B Bf6+ Be5 Nh6 g8N Qd5 g7 Nf4 Bg6 Nf5 c7 Ng3 Nb4 Bf5 Rd8 Nh1 f8N Bd3 Rf2 Rb8 Qf1 d1B Be3 Nd4 Nc1 Bb1 Qd3 Nf5 B5d4 Be5 Nf6 Bb3 g8N Rb6 Ne8 Bg7 Bf6 Re6 Bb6 Re1 Be3 Rh7 Ne6 Bh8 Nd4 Re7 Rd7 Rg1 Rd8 Rg3 Rd6 Rh3 Rd8 Nh6 Nf5 Bg7 Nh4 Nf5 Bb6 Re1 Be3 Qc6 Qe4 Qc5 Rdd2 Qd5 Qd3 B1c2 Rb1 a1B+ Rb2 Bh8 Rg2 Bb1 Rg1 Bg7 Rf2 Bh8 Kd2 B1c2 Bd8 Bd1 Rc2 Bag7 Bf6 Ba2 Kc3 Bb1 Rcd2 Bb3
N6R/K2bQ3/B2brN1R/1q1R2BP/qp1R1Rq1/2n1Nn1r/k2B3R/1qB5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 g5 Kd4 b5 Kc5 e5+ d6 g4 h4 e4 a4 b4 d4 g3 f4 g2 f6 Ke6 f5+ Kf7 d5 e3 h6 c6 a6 e2 h7 e1Q h5 Qe4 a7 Qh4 a5 Qe8 Kb6 c5 d7 c4 d8B c3 d6 c2 d7 Qf4 a6 Qh4 Qd6 Qe2 Nf3 g1Q+ Nd4 Qhg5 Nc3 Bg7 Ra5 Qc4 Nd5 Q1e3 Rh2 Qeb3 Qc7 Kf8 f7 Nc6 Nf6 Qa4 Rd5 Nge7 Qd6 Rg8 h8R Qg4 Rh6 Ne5 Bd2 c1Q Nc2 Qca1 Ne3 Nf3 Be2 Bh8 Bd3 Kg7 f8B+ Kf7 Qc7 Q1a2 Qb7 Rb8 a8R Qb1 Ka7 Qcb5 Rd4 Nd5 Bde7 Qg5 d8R Nc3 R8d5 Bd7 Bd8 Qg6 Bd6 Rf8 Bf4 Qg4 Bg5 Bg7 Bc7 Rbc8 Bcf4 Rfe8 Qc7 Re4 Qe5 Rc6 Rah8 Re6 Qc7 Bf8 Bc4 Ke7 Qd6+ Kd8 Qe7+ Kc8 Be2 R4e5 Bc1 Kc7 Nd1 Kc6 Bfd2 Rd6 Qd8 Qbc2 Nh7 Ng1 f6 Re3 f7 Qba5 Ka8 Rde6 a7 Rh3 Ba6 Nf3 Ne3 Bd6 f8R Qb1 Rff4 Q4b5 Qe7 Kb6 Rc8 Qaa1 Rh8 Ka5 Nf6 Ka4 Rff5 Kb3 Rff4 Qe2 Kb7 Qa4 a8N Qeb5+ Ka7 Ka2
R2r1q2/1KB1B1bp/1r3nb1/1B1R4/r1B1B1qB/N1P1N1Q1/5NN1/k1r1R1n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 a5 Kd4 d5 g4 a4 f4 e6 b4 a3 b6 a2 c3 Ra4 b7 Ra3 b5 Qa5 c6 Be7 g6+ Kf6 g7 Qa8 c7 Nh6 g8N+ Kg7 f6+ Kf7 f5 Ra6 b6 Ba3 g5 Be7 g6+ Ke8 g7 Kf7 Bg5 Ng4 Nh6+ Ke8 g8B Kd7 f7 Kd6 f8B Ne3 f6 Nd7 b8B Nc4 f7 Nd2 b7 Nf6 Bh4 Rb6 Qe1 Kc6 Bg2 Kb5 Qg3 Ka4 Be4 Kb3 Nh3 Kb2 Na3 Bd7 c8B Be8 Ke5 d4 Rhd1 d3 Bc7 Bd8 Rac1 a1R b8R Be7 Kd4 Nf3+ Kc4 e5 Bd7 d2 Nf5 Ng1 Nf2 Bc5 Bb5 Bd4 Be7 Ra2 f8N Bg6 Re1 d1Q Ne6 Qg4 Ne3 Ra1 Bf7 Rd8 Rcd1 Rc1 Nf4 Ka1 Rc8 Qb8 Nfg2 Qa8 Bf5 e4 Kb4 Qb8 Ka5 Be5 Bfc4 Bd4 Nd5 e3 Be4 e2 Nde3 Be5 Rd5 Bd4 Bf4 Qd6 Ra8 Qc5 Rf1 e1R Bc7 Re2 Re1 Ra2 Rd7 Ng8 Rd5 Bg7 Bef6 Qf8 Be7 Rbb8 Ka6 Nf6 Bc6 Rb4 B6b5 Ra4+ Kb7 Rd2 Rc5 R2d6 Rd5 Rb6+
4RN2/rkpN4/n1nnB2Q/6r1/N4RR1/1BBr1NqK/2P1N1rR/3b1rN1 w - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 f4 Bd6 f5 Nc6 f6 Ba3 g6 Ba6 g5 Bc8 axb3 Bf8 b4 Bg7 fxg7 Nb8 b5 Ba6 Bf4 Bb7 Bc1 Bc8 Kf2 d5 Kg2 Kd7 e4 f5 b4 a5 b6 Kc6 b7 h5 b5+ Kb6 e6 f4 e5 f3+ Kh3 a4 Bb2 d4 Bc3 f2 Qd2 h4 Bc4 f1N Bb3 d3 Rh2 Nf6 g8R a3 g7 a2 g6 Ne8 Qh6 Ra7 Nd2 Qg5 Ndf3 Ne3 Rf1 Nd7 b8N a1R e7 d2 e6 d1R Nc6 Nb8 Ncd4 Bd7 Nde2 Nd6 e8N Rd3 Nf6 R1a6 Ne4 Ne8 Nc5 Nc4 Na4+ Kb7 b6 Ne5 Rff2 Bb5 e7 Nd6 e8R Ra5 Be6 Na6 Bb3 Kc6 b7 Qf4 b8N+ Kb7 Nd7 Nc6 Nf8 Bc4 Rfg2 Rg5 Rg4 Rh7 Rh8 Bf7 g8B Rg7 Re4 Qe3 Ref4 Be8 Kg2 h3+ Kg3 Qe5 Bge6 Rg8 g7 Bh5 Rf2 h2 Kh3 h1R+ Rh2 Rd2 Nd7 Rd8 g8N Rd3 Ngf6 Rdg8 Nh7 R8g7 Rh4 Rg2 Re8 R7g5 Nhf8 Qg7 Nc1 Qg6 Rhg4 Qg8 Nge2 Rf1 Ng1 Qg6 Rg3 Rf5 Nh4 Be2 Nhf3 Bd1 Nce2 Qg5 Rc4 Qf4 Rg4 Rg5 Rd4 Qd2 Rde4 Qe1 Ref4 Qg3+
R6N/nbRKR3/kqR3q1/b1B1p3/BR1bQ3/2B1P1q1/1NnRN2r/b3B3 w - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb7 b4 h5 d4 f5 e3 h4 d6 e6 d5 a4 d7 a3 b6 f4 d6 h3 b5 a2 Bd2 c4 Nc3 f3 Qa4 h2 Rb1 a1B Rb4 f2 Ne2 Rh5 Be1 Qe8 d8R Rh7 d7 Nf6 g8R Rh4 g7 Nh5 g6 Rd4 Nd1 c3 Nb2 c2 Rh8 c1B g8R Rd1 g7 Rd3 Rh6 Rd1 Qc2 Ng3 Qe4+ Rd5+ Kf6 Ka8 b7+ Ka7 b6+ Ka6 Rg6 Nc6 b8B Bd6 b7 Ka5 Ba7 Rd2 b8B Bc5 Be5 Bb7 Bc3 e5 Rg1 Bd4 Bc5 h1Q Rh6 Qeh5 Ke6 Qg5 Rge8 Qh2 g8R Na7 Re7 Ka6 Rgg7 Nf5 Rg2 Rc2 Ra8 Qhg3 d8N Qg6+ Kd7 Bd2 Nf7 Qb6 Rgh2 Qbg6 Bg2 f1Q Nh8 Qb6 Rc6 Qg1 Rgh7 Qg6 Bh1 Q1g3 Rf2 Nd6 Bg2 Nb5 Bh3 Na3 Be6 Rc1 Bb3 Nc2 Ba4 Rb1 Rff6 Rd1 Rh2 Rb1 Rc7 Rd1 Rfc6 Rc1 Bf2 Rh1 Rg2 Rh5 Be1 Rh2 Ng1 Qg7 Rb5 Qf2 Ba5 Qh4 Rb3 Bb4 Rd2 Qhg3 Ne2 Ba3 Bc3 Bb4 Rf8 Qg8 Ra8 Ba5 Rb4 Q8g6
nN2RN2/BNp1rb1B/3B1Qn1/nK1Nq3/1RP1r3/1N6/r2N2r1/R1q3Bk w - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 f4 Bd6 f5 Nc6 f6 Ba3 g6 Ba6 g5 Bc8 axb3 Bf8 b4 Bg7 fxg7 Nb8 b5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 e4+ Ke6 b4 f5 b6 h5 b5 a5 b7 a4 b6 d5+ Kb5 f4 c4 f3 Ba3 h4 Ne2 h3 Nd2 f2 Bd6 d4 Nc1 h2 Ncb3 a3 Bd3 f1N Qf3 a2 Qf6+ Kd7 e6+ Ke8 e5 Ne7 g8N Nd7 b8B Rh4 b7 Nb6 g7 Ng6 e7 Kd7 e8N Qe7 Be4 d3 Ba7 Rb8 Rb1 Na8 Bg1 a1R Bf5+ Qe6 Ne7 Re4 g8N Ra3 Nc6 Ra2 Nf3 d2 Nge7 d1R Nd5 Rde1 Nfd2 R1e2 Rb2 Rg2 Ng7 Nh8 Bh7 Ng6 Nca5 Qf5 Ne6 Qf4 Nb1 Nd2 Nf8+ Ke8 e6 Qe5 e7 Be6 Nc6 Bf7 Nca5 Rc8 b8B Rd8 Bba7 Rd7 Nc5 Nb3 Nab7 Na5 Rb4 Qd4 Nd2 Qa1 Bf2 Qe5 Ra1 h1Q Ncb3 Qc1 Bg1 Be6 Qh8 Kf7 e8N Re7 Nf6 Qf4 N6d7 Qf5 Qd4 Qe5 Qf2+ Kg7 Nb8 Bf7 Bg8 Nf4 g6 Kh6 g7 Kg5 Qf1 Kh4 Bh7 Kg3 g8R+ Ng6 Qf6 Kh3 Nfd7 Kg3 Re8 Kh3 Nf8 Kg3 Bge3 Kh2 Bg1+ Kh1
6B1/r1r1q1RR/RB1b1p1N/QbR1p2n/Pn5k/RBKN2R1/3NN3/2rb4 w - - 0 1 illegal: No proof kernel
N1Q1rk2/n3n1N1/q2N2r1/B1bKB1Rp/b1BR2N1/2Pp3R/qN3N2/2b3R1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Ke3 e5 g4 a5 f4 h5 b4 e4 Kd4 e3 c6 a4 c7 e2 f6 e1B b6 a3 f7+ Ke7 f5 a2 b5 Be6 c8N+ Kd7 b7 Ra3 g6 Rh6 g7 Ra6 b6 Bfb4 f8R Bf7 f6 Ke6 g5 Be8 g6 Bg3 f7 Ra3 Qg4+ Kf6 Bd2 Ne7 g8N+ Kg7 Rh3 Ra7 Bc4 Ba4 Nc3 Bb5 Nf6 Be8 Nd1 Rh7 Nb2 Bd7 Nd6 Bc6 Qc8 Bh2 Ng4 Qd7 Rd8 Ra4 f8N Ba3 Ba5 Bb4 c3 Kg8 g7 Bf4 Ne6+ Qe8 Re1 a1Q Re5 Qf8 Rg5 Bc1 Ke5 d4 Rd7 Na6 b8N d3 b7 Nc7 Na6 Rh8 b8B Nb5 Nac7 Na7 Na8 Qa2 Rd8 Bc5 Rd7 Kh7 g8R Qh6 Ng7 Rb4 Bbc7 Rb6 Rdd8 Ba4 Bb8 Ng6+ Kd5 Rc6 Rh2 Ra6 Nh3 Rc6 Nhf2 Ne7+ Ke5 Ra6 Rh3 Rb6 Ndf5 Rg6 Rd4 Qb3 Nd6 Qa2 Rf8 Rg8 Rff3 Rf8 Rfg3 Re8 Rg1 Kh8 Ne6 Kg8 Ng7+ Kf8 Ke4 Nec6+ Kd5 Qh7 Ngf5 Qb7 Ng7 Qa6 Ndf5 Be3 Be5 Bc1 Nd6 Ne7+
k2qBKN1/1RnB4/1bb2r2/N1Bp1R1n/1q1B3Q/1r3P2/b2Bp1NR/2R1B3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 d5 Ke3 Kd7 Kf4 Kc7 Ke5 Kb7 g4 h5 c4 a5 b4 h4 b6 e6 g6 a4 g7 h3 g5 a3 c6+ Ka6 c7 Kb7 f6 h2 g6 a2 f7 Qe7 b5 Qd8 c5 Ra7 c6+ Ka8 f3 Ra4 b7+ Ka7 Na3 Rh3 Rb1 a1Q+ Qd4+ Bc5 f8B Qd7 Bd2 Qe7 Ne2 Rh6 b6+ Ka6 Nf4+ Rc4 Ng2 Qa2 Qh4 Nf6 g8R Qd7 g7 Bf2 Bc5 Be1 Rf8 Nh5 g8N Bf2 Rf5 Qb3 Rb2 Qe8 Kd6 Bd7 c8B Qd8 c7 Bc6+ Bd7 Rf6 c8R Qb4 Bd3 Bd4 Bb1 Rc3 Nc4 Rb3 Na5 Be3 Rc7 Bd4 Rc1 h1B Rbc2 Rf8 Be1 e5 Rf2 e4 Bc2 Rb2 Ba4 e3 Rfc2 Rb3 Rd2 Qc8 Ke7 Rf6 Rb2 Rd6 Be8 Qd8+ Kf8 Rf6+ Rf7 Bb5 Rf2 e2 Bd2 Bc4 Bd7 Be3 Nf4 Bd4 Rh2 Bg2 Be1 Bh3 Ng2 Rb2 Bd2 Ba2 Be1 Rb3 Bd2 Nc6 b8B Na7 b7 Nb5 Bg3 Nc7 b8B Be3 Bge1 Bf2 Nc6 Kb7 Ba7 Ka8 Na5 Bd4 Re5 Bf5 Bb6 Bd3 Rf5 Bb5 Ba7 Bc6 Bb6 Be3 Ba7 Qb5 Bd4 Bg1 Bac5 Qb4 B4e3 Ra3 Be7 Qf4 Bc8 Qb4 Ba7 Na6 Bd6 Rg6 Rb7 Nc7 Bd7 Rb3 Bb6 Bd4 Ba7 Be5 Bg1 Bd4 Bgf2 Bb6 Bd4 Rh6 B6c5 Rf6+
R1rr4/R1B2k2/4nP2/1QNqn3/NR2BN2/pBpnb1N1/q3bNR1/2KN4 w - - 0 1 illegal: No possible last move
B4BBQ/3KP2n/1bR1p1qr/1R5p/Bq1nN1kN/8/1BB1N2r/n1Nb1R2 w - - 0 1 illegal: No proof kernel
1qN1BR2/1BrB2b1/p2K1bN1/3bR3/4R1NR/1QBb4/P4pkB/b1Bnr3 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 e5 exd5 e4 b4 Nd7 bxc5 Ne5 fxe5 Rh6 Be2 Rh7 Bf1 Rh8 Kf2 Kd7 Ke3 g5 Kd4 f5 c4 b5 h4 a6 d6 Kc6 h6 g4 h5 g3 d7 f4 e6 g2 Ke5 b4 d4 f3 h7 e3 d5+ Kb7 d6 Kc6 e7 b3 e8B f2 h6 b2 Nd2 b1B Qb3 e2 Rh4 e1B Nh3 g1B Ne4 Bd3 Bg2 Bc2 Nf6+ Be4 Nf4 Bb7 Ng4 Bf3 Ng6 Qc7 d8B+ Qd7 Bc7 Ne7 Rh5 Rg8 h8B Nf5 h7 Ra7 Bg7 Ba8 h8R Bd5 Rh4 Bb4 R8h5 Ne3 Bb8 Rc7 Bh1 Kb7 c6+ Kb6 Be4 Qd8 d7 Nd1 c5+ Kb5 Bh8 Bg7+ Kd6 Bh2+ Re5 Bf4 Bf5 Bg5 Re4 Qc8 d8R B5f6 Bfd7 Bc4 Rb1 Bd3 Rb2 Rf8 Rbe2 Rf7 Re5 Re7 R2e4 Qb7 Qf7 Bc3 Qb3+ Ka5 Rc8 Ba1 Rd8 Qb4 Rc8 Kb5 Rd8 Ra7 c7+ Bc6 c8B Rc7 Bf7 Re8 Bb7 Re7 Rf8 Re8 Qa3 Re7 Bfe8 Qb1 Re1 Kc4 Qb3+ Kd4 R1e2 Bd5 c6 Rc8 c7 Qb2 Reh5 Re3 Rg5 Ke4 Re5+ Kf3 Re1 Kg2 Re4 Rd8 c8N Re2 Re5 Rc2 R1e4 Re2 Ba7 Re1 Bae3 Qb1 Bf4 Qb2 Bh2 Qb1 Nce7 Ra8 Nc8 Ra7 Ba8 Rc7 Bb7 Qb2 Bbc6 Kh1 Qc4 Bg5 Re7 B7h6 Bc3 Kg2 R7e5 Qb8 Qb3 Bf6 Bb7 Bhg7
1RNbR3/2p3Qb/1Rn1rr1N/1RP2RR1/1b2p3/1B5k/1n1bBB1N/3BK1n1 w - - 0 1 illegal: No possible last move
1b4R1/NPb5/N1N4R/pNn4p/bn4N1/BBK1qrpk/6NB/rR2Q2R w - - 0 1 illegal: No proof kernel
R1b3R1/1PN1b2K/1pp5/1QnB2p1/2r1N2B/RqB1BnB1/2nN4/B2Rr2k w - - 0 1 illegal: No proof kernel
8/Rp1n1BRp/1R1r1N2/1RBrp1NN/1p3qqb/R3Q2K/1P3R2/NnBk4 w - - 0 1 illegal: Other
R1Q2N2/1N2Q3/q2rb3/1N1b1QrP/1p2N1NB/RBbn4/7q/QK3N1k w - - 0 1 legal: proof: g4 h5 b4 c5 d4 a5 dxc5 g5 bxa5 f5 h4 d5 hxg5 d4 e4 d3 exf5 h4 cxd3 Nd7 d4 Ndf6 d5 Nh5 gxh5 Ra7 Bf4 Ra6 Bc1 Ra8 Kd2 Kd7 Kc2 b5 a4 e5 f4 e4 g6 b4 a6 e3 g7 e2 f6 e1Q a7 h3 f5 h2 c6+ Kd6 c7 Ke5 d6 Ke4 a5 Rh6 a6 Qe7 f7 Rf6 d7 Rd6 d8N Qe3 f6 Rb8 a8Q+ Rd5 a7 Qa3 Qb7 Qa6 a8N Qae6 Nh3 Qf5 Ra3 Qfd7 Bc4 Qee8 Nd2+ Kd4 Nf1+ Ke4 Bb3 Qe5 Kb1 Qb5 Ng5+ Kf5 Ne4 Ne7 g8N Be6 c8Q Ng6 Qe7 Qa6 Nc7 Rbb5 Nb7 Rd6 Bg5 Nf4 Bh4 Nd3 Nh6+ Kf4 Ng4 Bg7 f8Q Rbd5 Rg1 h1B f7 Bh8 Qe1 Kf3 Nb5 Qh2 Rg2 Bc3 Rga2 Rg5 Qc1 Qc6 Ra8 Qa6 Ra3 Kg2 Qb2+ Kg1 Qa1 Bd5 Qf5 Be6 Qc8 Bf3 f8N Kh1 Ned2 Bc6 Ne4 Bcd5
1K2B1Qn/3n1R1r/r1N2B1N/N1B3P1/4R3/1nQ3r1/1B3pBB/nk2N2b w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 fxe5 Be7 c4 Ba3 cxd5 Bf8 hxg5 Nf6 b4 Ke7 b6 Qd6 b5 Bh6 b7 Kd7 Rxh6 Qb4 b6 Ng8 Rh1 Qa5 Rxa5 Kd8 Ra1 Ke8 Kf2 Kd7 Kf3 f5 Kf4 h5 d4 a5 e4 c5 g4 h4 g6 h3 d6 Kc6 g7 a4 e6 c4 Ke5 Kb5 d5 Kb4 g5 a3 d7 f4 Kd6 c3 Kc7 f3 d8N h2 d6 c2 e5 Kb3 d7 f2 e7 a2 e8Q Ne7 g8N Ra6 e6 Ra8 Qe1 Nec6 e7 Rh7 Bb2 c1N Bg2 Kc2 Na3+ Kd3 Nf3 Nb3 Nc4 Kc2 Na5 Ra7 Nh6 Nd2 Qg8 Rh8 e8B Nd4 Ndc6 Ne4 d8B Be6 Bf6 Nd6 Qb4 Ra6 Rhe1 h1R Re4 Nd7 b8B Rg1 b7 Nf7 Ba7 Bg4 b8B Nb3 Bc5 Rh7 Kb7 Be6 Bh2 Nh8 Qa3 Bd5 Ne1+ Kd2 Rc1 a1N Rcc4 Kd1 Re7 Be4 Rf7 Bd5 Re4 Kd2 Nd3 Kc2 Ne1+ Kb1 Qb4 Be6 Kc7 Bg4 Qc3 Bf3 Bf1 Bh1 Bh3 Nb6 Kb8 Rg3 Bg2 Nd7+
2NR4/1BkbBq2/1RN1nB2/3r2b1/4BN2/Q1RPN1q1/1N5K/nrn2R1n w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 f4 Kd7 Kf2 g5 Kg2 e5 h4 c5 h6 g4 f6 g3 a6 e4 h5 c4 f5 e3 d3 c3 f7 e2 b6 e1Q b7 c2 h7 Ra7 h6 Qh4 f6 Qeb4 d6 Qhe4+ Nf3 Qbc4 Bg5 c1N Ra3 Be7 f8N+ Kc6 d7 Qa4 d8R Qe5 f7 Qd6 Qb3 Qad4 Nfd2 Ne2 Nc3 Kc7 Nd5+ Kc6 Nc4 Nc3 Nb2 Q6f4 Ng6 Bd7 f8N Qdf6 Ne3 Na2 Ne6 Nb4 Rg1 Qg4 Nef4 Qf7 Qa2 Nf6 Rc3+ Kb6 Qa3 N8c6 b8N Rb7 a7 Nc2 a8B N6d4 Nc6 Nh5 Kh1 g2+ Kh2 Rg8 h8R Ne6 h7 Ng3 Rb8 Rg7 Rhd8 Kc7 h8B Na1 Bf6 Rb4 Rb6 Nh1 Bb7 Rg8 Bh4 Bg5 Nge7 Rd4 Bg7 Rd5 Bf6 Re8 Be2 Rf8 Re1 g1N Bf3 Ne2 Be4 Nc1 Nc8 Rh8 Rd1 Rh5 Rf1 Rb5 Nbd1 Rb1 Nb2 Bh6 Qa2 Rd5 Qa3 Bg5 Be7 Bh6 Bhf6 Bg5 Rg8 Qf3 Rd8 Qg3+
4R2R/5Q1P/2QQ2Rb/3QN3/R4rR1/b1RBb3/1B2nqN1/Kb1q1krr w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 d5 exf5 b5 a4 d4 axb5 d3 cxd3 a4 d4 Nc6 d5 Na5 bxa5 Ra6 Bc4 Ra7 Bf1 Ra8 f4 Kd7 h4 Kd6 d4 g5 Kd2 e5 Kc2 c5 Kb2 c4 b6 e4 h6 g4 f6 e3 h7 e2 f7 e1Q b7 g3 b8Q+ Qc7 a6 g2 h5 Nh6 a7 Nf5 h6 Rg8 h8R Nh4 f5 Rg7 h7 Rg5 f6 Qe2+ Nd2 Rh5 Nh3 g1R Nf4 Qe8 Nf3 Bf5 Rh3 Bd3 Ne5 Bh6 f8R Bg6 f7 Qd7 Re8 Ng2 Rc3 Rhh1 Bd3 a3+ Ka2 Be4 Bb2 Qg4 Qb7 Qc5 f8R Qb6 Qc1 Qd1 Rfg8 Rc8 a8R Bg6 Ne2 Nf4 Ra4 Ra8 Rb4 Ra4 Qf7 Bf5 Rg4 Qc5 Rb1 Qb6 Ka1 a2 Rbb3 Rb4 Ra3 Qa7 Ra4 Qc5 Ng3 Ne2 Nf1 Be4 Ne3 Qb6 Rb3 c3 Ng2 c2 Rc3 Qa7 Qe3 c1B Qef3 Bce3 Rbc1 Qf1 Re1 Rc4 Reg8 Qf2 R8g5 Qd7 Rg6+ Kc7 d6+ Kb6 d5 Kc5 Q3f6 Kd4 Q6e6 Qd8 d7 Rb4 Qc6 Rc4 d6 Rb4 Ba3 Rc4 Kb2 a1B+ Ka2 Bb2 Kb1 Qb6 d8Q Qb3 d7 Qd1+ Ka2 Bbc1 Bb2 Rb4 Ba1 Ba3 Bb2 Bc1 Ka1 Rc4 Nf4 Ke3 Ng2+ Kd2 Qde7 Bf5 d8Q Rf4 Bb5+ Bd3 Qdg8 Bc2 Bd3 Bb1 Qed6 Nd4 Re4 Ne2 Nh4 Ke1 Ng2+ Kf1 Qfd5 Rf8 Qgf7 Bcd2 Nd7 Bde3 Re8 Bef4 Ne5 Be3 Qfb7 Rf6 Qbf7 Rf4
2Q5/5pr1/b2P1nk1/1N4NR/K2nNr1R/n2R4/RbNBB1qB/1BBb4 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 d4 c5 Kd2 h5 Kc3 c4 e4 h4 g4 h3 a6 h2 a7 Ke7 Kb4 c3 e6 c2 b6 Rh3 d6+ Ke8 b7 Na6+ Ka4 Rb3 b8B Nc7 e7 Bh6 d5 Rc3 g6 Rg3 g7 Na6 e5 Be6 g5 Nc7 g6 Rc3 Be2 Be3 Nf3 Bf5 Ra2 Bg4 Ng5 Nh6 g8N Ne6 g7 Bg1 Na3 Kd7 e8R Bh5 Nf6+ Kc8 g8B Ng4 Nfe4 Kd7 Bh7 Rf3 Rh8 Nd4 Qe1 Qf8 Qc3 Nb5 e6+ Ke8 d7+ Ke7 Qc7 Qg7 Qc8 Nf6 Bg3 Rb8 a8N Bd4 Nc7 Bb2 Be5 Qg8 d8B+ Kf8 d6 Kg7 e7 Rf4 Bd2 c1N e8R Nb3 Nc2 Na3 Nb5 Nd4 Bc1 Kh6 Ba5 Ra8 Rd1 h1B Rd3 Bg2 Re7 Bf1 Ra7 Bg4 Bad2 Qg7 Ra5 Bf3 Ne6 Qg2 N6g5 Kg7 Bg6 Bg4 Rh4 Rb8 Qc7 Rg8 Qc8 Bh5 Bf5 Kh6 Bh7 Rg7 Bf5 Rg4 Bg3 Rf4 Bh2 Qg4 Rdh3 Qf3 Nc7 Qc3 Bb5 Qd3 Na1 Nc4 Nge6 Nf3 N4c5 Qd4 Bb1 Qg1 Ne4 Qg4 Nc2 Qg2 Ba6 Kg6 Rc5 Bg4 Rch5 Na3 Ng5 Be2 Bc4 Bd1 Bd3 Be6 Be2 Bc4 Rg3 Nd4 Rd3 Ba6 Nb5 Qf1 Qc3 Qh3 Qc8 Qg2
8/KBNBNkp1/RrR5/Rn6/Q1n2B1B/2n1Pqb1/NR3r1N/3qb1R1 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 b6 h5 gxh5 a5 b3 a4 Bg2 a3 Bh3 Bd7 Bf1 Ba4 bxa4 Qf6 Bh3 Qd6 Bf1 Qd8 Kf2 c5 Ke3 f5 h4 c4 Kd4 c3 a5 a2 h6 c2 b7 f4 h5 f3 e6 f2 e7 Na6 b8R Ra7 h7 Nh6 d6 Kf7 e8B+ Kf6 d7 Ng4 h6 Ra8 Nf3 Ke7 Nh2 Nf6 Bg2 f1N Bb7 Ng8 Rg1 Ne3 Nc3 Nc5 a6 Ng2 a7 Qa5 d8N Na4 Ne6 Qa6 Bd7 Nc5 Nc7 Qb6 d3 Nh4 Bf4 c1Q e3 Qb5 Qa4 Na6 Rc8 Rb8 a8R Qbb2 Rb1 Qe2 Rb2 a1B Na2 Nf5+ Kd5 Qc3 d4 Qcd2 Kc6 Kf7 Kb6 Nd6 d5 Ne7 Ka7 Nc4 d6 Rg8 h8R Qf3 h7 Nd5 Rc2 Be7 Rb2 Rf8 Rg8 Qdd1 h8N+ Kf6 Ng6 Kf7 Rh8 Nc3 Rh5 Bh4 Ra5 Be1 Ne7 Bg3 Ncd5 Be1 Rc6 Nc7 Raa6 Ne6 Nc7 Nd4 Bh3 Bg3 d7 Be1 d8B Bg3 Bbc8 Rb6 Bhd7 Be1 Bb7 Bg3 Rb3 Bb2 Ra5 Bc1 Rb2 Bd2 Ned5 Bde1 Bh4 Re8 Ra6 Re4 Ne7 Ndb5+ Kb8 Re5 Ra5 Rd5 R8a6 Rd2 Ka8 Rf2 Kb8 Nd4 Ka7 Ndb5+
4Q2R/5q1n/1Rq2Q2/1r6/2BBQ3/2rPqnBB/5Nbp/KnQ1BkNB w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 b4 Kd7 d3 Kd6 Kd2 Ke5 Kc3 c5 Kb2 Kd4 b6 a5 d6 h5 b5 c4 d7 h4 b7 h3 f6 e5 b6 a4 f7 e4 f8Q e3 Qf5 e2 Bd2 e1Q Qc1 Qe3 Be1 Ra7 Nd2 Nf6 g8B Nc6 b8B Rb7 g7 Nh7 g6 Qf6 Ne4 Ne5 Ba7 Nf3 Rb1 a3+ Ka1 c3 Bd5 c2 g8Q a2 d8Q Qf7 g7 Rb8 Qg4 Bb7 Qge8 Rc8 g8B Rc3 Qg6 Bc6 Nf2 Ba8 Qd2 c1Q Qde7 Qc2 Qc1 Qa4 Qgd6 Qc6 b7+ Qc5 b8B h2 Qec6 Ne5 Qa3 Rc2 Ba5 Qf5 Bh3 Qh6 Ne2+ Ke3 Rhc1 Rb2 Ng1 Rb4 Bh1 Qfe6 Qb5 Bg2 Qd5 Qf8 Qf6 Nf3 Bg3 Qec8 Bge6 Qf7 Qe4+ Kd2 Qbc6 Qe3 Bd4 Qcc7 Rb3 Rc8 Kb2 a1N Rc3 Ke1 Qaa4 Rc4 Rb6 Kf1 Qc2 Rc5 Qc1+ Ne1 Ka2 Nb3 Rc2 Nd2 Ka1 Nb1 Ra2 Ra8 Bc4 Rb5 Bd2 Ra3 Qd7 Rc3 Ra8 Qe2 Rh8 Qe3 Qde8 Qcd7 Qa3 Nf3 Be1 Qd6 Qc1 Qc6
2R5/4N1kB/BB2R3/1N2Nn1r/1nNNR2Q/PrRq4/1B2p1r1/bqn3K1 w - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 a4 cxd5 a3 bxa3 Ra5 a4 Ra6 a5 Ra8 g4 g5 fxg5 Bg7 h4 Bf8 h5 Be6 Ba6 Bf7 Bf1 Bg6 hxg6 Ra7 Na3 Ra6 Nb1 Ra8 Kf2 e5 d4 h5 f6 b5 g7 Kf7 a3 c5 d6 h4 a6 b4 g6+ Ke8 g5 e4 f7+ Kd7 d5 c4 a7 b3 Qe1 b2 Ne2 h3 Nbc3 Nf6 g8R b1R g7 h2 g6 Be7 f8N+ Ke8 Nd7+ Bf8 Nb6 Rh6 d7+ Ke7 d6+ Ke6 Rh8 Nd5 g8B+ Kf6 g7 Qe8 d8N Rb4 d7 Qe7 Nf7 Kg6 d8B Rh3 Rh4 Nc6 Bh7+ Kf6 Rg1 h1Q Rg3 Rb3 Rb1 Qf3+ Kg1 e3 Rhg4 Rc8 a8R Ndb4 Bc7 Rd8 Rc8 Rh5 Rh3 Rdd5 Qh4+ Rdg5 Bd8 Nd4 g8N+ Kg7 Bc7 Qee4 Ne7 Nf5 Rb2 Kf6 Rd2 Kg7 Rd6 Qb1 Re6 Qfe4 Rhg3 Qec2 Rge4 Rg4 Nc6 Bd6 Ne7 Bc5 Ne5 Bd4 Nb5 c3 Nd6 Qd2 Bd8 c2 Bc7 Bb2 Nd4 Rc3 Ba6 e2 Nbc4 Ba1 N6b5 Rb3 Bb6 Rgg5 Kh1 Rg4 Rc3 Rg6 Kh2 Rg3 Bb2 c1N Kh1 Qdd3 Kh2 Rg2+ Kh1 Rh2+ Kg1 Rg2+
NB1N1n2/1Bn2BB1/1R1K4/Q3BNn1/1Bn3k1/R1nb4/bq3p1P/1Q1Nr3 w - - 0 1 legal: proof: d4 b5 f4 d5 a4 c5 axb5 h5 g4 e5 gxh5 a5 e3 Bd6 dxc5 d4 e4 Ra7 Qd3 Rd7 Qf3 Bc7 Qd1 Rd5 exd5 e4 Nc3 Nf6 Nb1 Be5 fxe5 Ng8 Kf2 Ke7 Kg3 g5 c4 f5 b4 g4 Kf4 e3 h6 d3 h7 d2 d6+ Ke6 c6 a4 d7 a3 c7 e2 c5 e1N b6 a2 b7 g3 b5 g2 c6 Nf6 b6 Qe8 d8N+ Kd5 e6 Qe7 Bc4+ Kd4 Ba3 Rf8 h8B Qf7 e7 Nd7 e8Q Qg7 b8B Nf3 b7 Ng5 Qeh5 Re8 Bb4 Re1 Bf7 Ne8 Nc3 Nf8 Qb1 Be6 c8N d1B c7 Bc2 Nd1 Bd3 Nf3+ Kd5 Rf1 g1N Nh4 Qb2 Bg7 Ne2+ Ke3 Nc3+ Kf4 Re5 Nb6+ Kd4 c8B Nc7 Na8 Kd5 Qc1 Re1 Rb1 a1N Rf3 Nb3 Rg3 N7b5 Bbe5 Nd2 b8B Nc7 Ba6 Nc4 Qc2 Qa3 Rb3 Qa2 Qb1 Qb2 Ra3 Nge4 Rg6 Ng5 Kg3 Ke4 Bb7+ Bd5 Rb6 f4+ Kg4 f3 Nf5 f2 Kg3 Nge6 Kg4 Nd4 Kg5 Nde6+ Kf6 Ng5 Ke7 Rg1 Qh6 Kf3 Qc6 Rf1 Qa4 Kg4 Qa7 Re1 Qa5 Ne3 Kd6 Ba2 Kc6 Nc4 Kc5 Nd2 Kd6 Nc4+
1B1k4/N1N1R1p1/3r4/N4n2/3QRbKb/P2RRR1r/1n3b2/rBQ2NRb w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 a5 cxd5 a4 Bc4 a3 bxa3 Qd6 Bf1 Qd8 g4 b5 Qf3 h5 gxh5 b4 Bh3 b3 Bf1 b2 Qd1 Qd6 Bh3 Qb4 Bf1 Qb3 axb3 Be6 Bb5+ Bd7 Bf1 Bc8 Ke2 c5 Kf3 e5 d4 c4 h4 e4+ Kg4 c3 f4 e3 h6 e2 d6 e1B h5 c2 h7 Be7 h6 Bf8 d7+ Ke7 d8Q+ Kf7 b4 Bd2 d5 Be6 d6 Bd7 b5 Bc6 b6 Be8 b7 Ba4 d7 Be1 f6 Beb4 f5 Be1 Nc3 b1R Bd3 Bb4 Bf4 c1B Rh4 Bg3 Nge2 Rb3 Bb1 Rb2 Nb5 Bh2 Ng3 Re2 Nf1 Be1 Na7 Nc6 b8N Nb4 Nbc6 Be3 Na5 Bc5 Bb8 Re7 Qc1 Bc2 Qb6 Be5 d8R Re8 Rd3 Bcd6 Qd4 Kf8 f7 Ke7 f8R Bf4 f6+ Kd8 f7 Bf2 Rhh3 Bh4 Rhe3 Ne7 Re4 Nf5 Ree3 Rg8 h8R Ba4 h7 Bc6 Re7 Bfg3 Rde3 Nd3 R7e4 Nb2 Rd3 Kd7 Rde3 Re6 Re8 Be1 Re7+ Kd8 f8N Bef2 Rd3 Rf6 Ree3 Bg2 R7e4 Bh1 Ne6+ Kd7 Nc7 Re8 Rg8 Kd8 h8R Re6 Rf8 Rf6 Nd5 Bf4 Nc7+ Rd6 Rf7 Rf8 Rfe7 Re8 Rh6 Rh8 Rf6 Rh6 Nab5 Ra6 Na7 Rc6 Rfe6 Rc2 Rf3 Re2 Ree3 Re1 R6e4 Bf6 Na8 Rh3 Nc7 B6h4 Qcc4 B2g3 Bc2 Be5 Nh2 Re2 Rg1 Bf2 Nf1 Re1 Qcc3 Ra1 Bb1 Beg3 Qc1 Bf4
2B5/qQ2Nr2/2r1Q1B1/qN1PB3/B1n1N3/1N1nB1R1/4p2k/KBqqR2n w - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 e5 d4 e4 h4 Bd6 hxg5 Bb7 f3 Bh2 d6 Be5 e3 Bc8 d5 Bd4 exd4 e3 Ne2 Bf5 Ng1 Be4 fxe4 Qc8 Bd3 Qd7 Bf1 Qd8 b4 Kd7 g4 a5 b6 c5 e5 f5 b7 h5 e6+ Ke8 b5 f4 b6 f3 d7+ Ke7 d6+ Kf8 g6 Kg7 e7 Kf6 e8B Kg5 d5 Kf4 g7 Kg3 g5 a4 g6 h4 Bd3 a3 Nd2 h3 Nb3 a2 Ne2+ Kg2 Ng3 c4 Ne4 c3 Rg1+ Kh2 Bb1 c2 Rg3 Kh1 Qe2 Nh6 g8B h2 g7 Ng4 Be6 Na6 b8B Qh4 g8B Nc7 d8N Rh5 d7 Qh3 b7 Rf5 Bgf7 Nb5 Nc6 Na3 d8N Qh5 Ncd4 Ne5 Bg6 Nac4 N8c6 Qh7 Bc8 Rf7 Nb5 Ra6 Ne7 Rc6 Bc7 Qg7 b8Q Qh7 Qb7 f2+ Kf1 Nd3 Be5 Qg7 Qg4 Qh7 Ke2 Qg7 Bd2 c1Q Qe6 Qh7 Rf3 Kg1 Bed7 h1N Rg3+ Kh2 Be8 Qa3 Kd1 f1Q+ Kc2 e2 Be3 Qa5 Nbc3 Ra6 Ba4 Rc6 Nb5 Qg1 Ba7 Qh6 Be3 Qa7 Kc3 Qd1 Bf2 Qh3 Be3 Qhf1 Bc2 Qc1 Rb1 Qce1+ Ned2 Nf4 Bcd3 a1Q+ Kc2 Qa3 Ne4 Qab4 Rd1 Qbd2+ Kb1 Qda5 Ka1 Qed2 Bb1 Nd3 Rc1 Qc2 Rd1 Qfe1 Rc1 Qed2 Rf1 Qdc1 Re1 Q2d1
BB3K2/bR1q3R/1bpRrqN1/rb3qB1/6QB/b2NN3/1P1k3N/R2B4 w - - 0 1 illegal: No possible last move
2Q2b1q/2QbN1pQ/p7/Nr1QR1B1/Q1NN4/P3Q2n/1qq2nR1/K2k3B w - - 0 1 legal: proof: e4 c5 g4 d5 c4 h5 cxd5 f5 exf5 b5 gxh5 a6 b4 Ra7 bxc5 Rd7 Qe2 Rb7 Qd1 Rb6 cxb6 Qd7 Qa4 Qc7 Qd1 Qd8 f4 Kf7 d4 Kf6 Kd2 e5 Kc3 e4 Kb2 e3 h4 b4 b7 e2 d6 e1Q h6 b3 d7 Qda5 d8Q+ Qe7 a3 Nd7 b8Q Qd5 h7 Qa5 h5 Bb7 h6 Bf3 d5 Qc5 d6 Bg2 Ra2 Ne5 d7 Qa7 Qbc7 Nf3 Ne2 Qf2 Nd2 Qg1 Ka1 Qh2 Nc4 Qg3 Rh5 Qh2 Nd4 Bh1 Bg2 Kf7 f6 Kg6 f7 Qd6 Re5 Qc5 f5+ Kh5 f6+ Kg4 Bg5 Bd6 f8N Qh5 f7 Nf6 Ng6 Ne4 f8Q Nf2 Qfe8 Bf8 Ne7 Qh3 Qe1 Ng1 Qe3 Qh2 Qa8 Ngh3 d8N Qb5 N8c6 b2+ Kb1 Qb4 N6a5 Qd2 Bb7 Bc6 Qac8+ Bd7 Bh1 Rg8 h8Q Qb4 h7 Qb5 Kc2 b1Q+ Kc3 Qa4 Q8b7 Qb6 Qd5 Qh6 Kb2 Qc2+ Ka1 Qf5 Qeb8 Nd3 Qcb7 Qh5 Nec6 Bc5 Q8a8 Rb8 Qdg8 Qh4 Qgc8 Bf8 Qbc7 Rb5 Ne7 Qd2 Qd5 Qb4 Rh2 Ndf2 Qb3 Qh5 Qa4 Qc2 Qhg8 Qh4 Qe4+ Kg3 h8Q Qh7 Qf7 Qg8 Qhh7 Qh8 Qe1 Kg4 Ndf5 Qbb3 Rg2+ Kf3 Qc1 Qe3 Qd5+ Ke2 Qb2 Ke1 Nd4 Kd1 Qc3 Qf4 Qg3 Qe3 Qf4 Qeb3 Qe3 Qbb2+
1B1rRBqQ/1P3Rp1/NkN2q2/2n1nB2/2p5/rN2rBq1/2N3B1/B2Q2K1 w - - 0 1 legal: proof: g4 b5 f4 h5 gxh5 e5 fxe5 b4 c3 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Nc6 b6 Bc5 b5 Bb4 cxb4 Nb8 d4 c5 d5 Ba6 Nc3 Bb7 Nb1 Bc6 dxc6 Qg5 Qd6 Qf6 Qd1 Qd8 Kf2 a5 e4 d5 h4 f5 e6 a4 e7 c4 h6 f4 h7 f3 e5 a3 h5 a2 c7 Kd7 c8B+ Ke8 h6 d4 b7 d3 b6 d2 b5 Nd7 b8B Nf8 b7 Ra6 b6 Nf6 Bd6 Ra8 b8B Nh5 b7 Ra4 Bf5 Ra5 Na3 Ra7 Nc2 Ra8 Ne2 Ra4 Kg1 Qc8 Bg2 Qd7 Bb2 Qd8 Ned4 Nf6 Nb3 Rg8 h8N Ng6 h7 Ne4 Nf7 Ra7 h8Q Nc5 Rh3 Qc8 Nd8 Ra3 Nc6 Qc7 Rb1 a1Q Rg3 Qa2 Ba1 Qd8 Rg4 Qc7 Re4 f2+ Kh2 f1Q Re3 Qd3 Kg1 Qb2 Bf3 Qd8 Re4 Kf7 e8N Qc8 Bg2 Qg3 Nc7 Re8 e6+ Kf6 e7 Ne5 Rf4 Qe6 Rf2 Qg8 Na6 Rd8 e8B Qd4 Qf1 d1R Bh5 Re1 Bf8 Re3 Bf3 Kf7 Rd1 Ke8 Rd3 Qdf4 Qd1 Qfh4 Rd6 Qd4 Re6+ Kd7 Bd3 Qdh4 Re8 Qf6 Bfe2 Qd6 Rf7+ Qe7 Ba7 Kd6 Bf3 Kd7 Nab4 Kc7 Bb8+ Kb6 Na6 Qe6 Bf5 Qf6
1nKR1bR1/bb2Nk2/2QQ1P2/BnB5/1n1p2BB/p2N2R1/2BRB3/3b1q2 w - - 0 1 legal: proof: d4 h5 f4 c5 dxc5 a5 a4 g5 h4 f5 g4 b5 axb5 Bb7 gxf5 g4 e4 Ra7 e5 Rh7 f6 Rg7 f5 Rg5 hxg5 Bc8 Qe2 Qc7 Qd2 Kd8 Qd1 Ra6 f7 Rf6 exf6 Qb6 Bd3 Kc7 Be2 Kb7 Bc4 Qd8 Bf1 Kc7 Kd2 e5 Kc3 d5 b4 Kd7 c6+ Kd6 b6 e4 Kd4 a4 c4 h4 c7 g3 b5 e3 c5+ Kd7 Ke5 a3 b7 e2 b6 e1N g6 h3 g7 d4 Nc3 h2 Nd5 g2 Ra2 Be7 f8B Ke8 c6 Nh6 g8R Bc5 Qc2 Kf7 Nh3 g1B Ne7 Ke8 Be2 Nd7+ Ke6 Nf3 b8B Bf2 b7 Nh4 Nf4 Bd6 Nd3 Bf4 Rhg1 h1B Bd2 Bg2 Ba5 Bh1 R1g3 B2e3 Qc3 Nf7 Rd2 Nf3 Ba7 Nf7e5 b8Q Nc4 Bc5 Nd6 Qc1 Bb7 c8B Nfe5 c7 Ba8 Ba6 Nb5 c8B Bhe4 Qd6 Nb8 Bab7 Bf3 Be4 Qb6 Qc3 Nec6 Bd7+ Kd8 f7 Nb4 Qc4 Bh6 Qd5 Bef4 Q6c6 Bc7 Qdd6 Bh5 f6 Qa6 Bf5 Bb6 Bfg4 Bf4 Be8+ Nd7 Bh6 Be3 f8R Bg5 Qf4 Nb8 Qe5 Be3 Bg5 Bf4 Bh4 Bh6 Rh8 Bg7 Rfg8 Bf8 Bf7 Nc7+ Kd6 Ba7 Bb3 Qc4 Qed5 Qc1 Bc2 Qf1 Qb7 Ke8 Qbc6+ Nd7 Qe5 Kf7 Qf4 Nb8 Qe5 N8a6 Kd7 Nb5 Qed6 Nb8+ Kd8 Bg6 Kc8 Be4 Nf2 Bd5 Nd3 Bb3 Bb1 Bd1 Bc2 Bg7 Rd8 Bf8 Rg8 Bb7+
N2r3K/R3r2Q/3R2RB/bP1pk1bN/qQ6/1RR2p2/pRnQ4/5BQn w - - 0 1 legal: proof: a4 b5 f4 a5 d4 e5 fxe5 c5 dxc5 h5 g4 Bb7 gxh5 Bd5 axb5 a4 Bg2 a3 Bh3 Bb3 Bf1 Ba4 b3 Qe7 bxa4 Qd8 h4 Ke7 Rh3 Ke6 h6 Rh7 Kd2 g5 Kc3 d5 e3 f6 Kd4 a2 h5 g4 c4 f5 a5 g3 a6 f4 a7 Rh8 h7 g2 h6 f3 Na3 Nf6 Rh2 Bg7 e4 Na6 c6 Rf8 h8R Qe8 c5 Nc7 h7 Ng4 Be2 Rd8 a8R Rd6 Rb1 Qg6 Bh6 Bf6 Nh3 Bg7 Qg1 Rg8 Bf1 Nf2 Ra7 Rb8 Nf4+ Kf7 Rd8 Ke7 h8Q Qh7 Nh5 Ke6 Nc4 Ra8 Nb6 Ne8 c7 Nh3 c8Q+ Rd7 c6 Bf6 c7 Qg7 Rb3 Qg4 Qh7 Rb8 Na8 Nf4 Qa6+ Rb6 c8R Qg7 Qa5 Qh8 Rcc3 Rf7 Qa4 Rbb7 Rd6+ Ke7 Qc4 Ng7 Qc5 Bh4 e6 Rd7 Ke5 Nh3 Qcd4 Qd8 Qc5 Qa5 Qb4 Ke8 e7 Qa4 Rg6 Nf5 Rd6 Bg5 Ke6 Bc1 e5 Rg7 Kf6 Nd4 Rd3 Nf2 Rdc3 Rf7+ Kg6 Rf4 Kg7 Rf7+ Kh8 Nh1 Rg6 Bg5 Rd6 Rg7 Rg6 Kf7 e8R Qa5 Rd6 Qa4 Rg8 Ke7 e6 Rf7 Nf4 Kf6 Rg6+ Kf5 e7 Rg7 Qf2 g1B e8Q Rgf7 Qee3 Rfe7 Qc1 Ke4 Qg3 Ke5 Rhb2 Nc2 Qd2 Bb6 Qg1 Ba5 Nh5 Rd8+
1r1B2qR/2b3N1/n3RR2/B2B3n/NR1PQ1B1/qp1p1BN1/4pb2/k2K1N2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 Nc6 gxh5 Nf6 d4 Nb8 d5 Ng8 c3 b5 Bg5 Bb7 Nh3 Bc6 dxc6 d5 Bd2 d4 Bc1 d3 Ng1 Ra7 Qe2 Rd7 Qd1 Rd4 cxd4 Qc7 Bf4 Qb6 Bc1 Qd8 h4 Kf7 f4 Kf6 a4 e5 h6 g5 h7 c4 a6 e4 c7 e3 c8N g4 a7 c3 a8B g3 h5 b4 h6 c2 a5 g2 a6 b3 a7 Qe7 Be2 Qd8 Bg4 Ne7 Ra4 Qd5 Nb6 Qd8 Nd2 Ng6 Ne2 g1B Ng3 Be7 Qf3 Na6 Ndf1 Nb4 Bd2 Na2 Ba5 Rg8 h8B+ Rg7 h7 Ba3 Rh6 Ke7 f6+ Kd6 f7 Qh4 f8R Qg5 f5 Rg8 f6 Nb4 f7 Na6 Bf6 Nf4 h8R Nh5 Rc4 Bc5 Na4 Bb6 Rb4 Bc7 Bc6 Qd5 a8B Qc4 Re8 Qd5 Re5 Rb8 f8N Qe6 Qf5 Qg8 Ne6 c1Q+ Bd1 Ng7 Bd8 Qa3 Bg4 Bf2+ Kd1 Nh5 Bh1 Qf8 Bag2 Qg8 Re4 Kc6 Rf6 Kd6 Qf3 Kc6 Ng7+ Kd5 Rb7 Kc4 Ree6 Qe7 Qf5 Qa3 Bc6 Bd6 Qe4 Bc7 Bb6 Kb4 Bhf3 Kc4 Bd5+ Kb4 Nc5 Kc3 Ba5+ Kb2 Rb4 Ka1 Na4 e2+
B3q1n1/1R2Q2K/Q1q2pN1/Np1q4/kb1N1R2/Br1P3n/2NR2p1/3N1RN1 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 a5 cxd5 a4 g4 a3 g5 Be6 g6 Kd7 bxa3 Bf5 a4 Ke8 a5 Bc8 h3 b5 Qb3 f6 Qa3 Bg4 Qd3 Kd7 Bb2 Ra6 Qc2 Re6 Qb3 Re7 Bc1 Rf7 gxf7 g5 Qa4 Bf3 Qd1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bd6 Rh2 Ba3 Rh1 Bf8 e4 c5 Ke2 h5 Kf3 c4 Kf4 h4 Kf5 c3 Kg6 c2 a4 h3 d6 Kc6 g5 h2 d7 Rh4 d3 Ba3 f8N Na6 e6 Rh7 e5 Rh5 e7 Bb4 e8Q Bc3 e6 Rh8 e7 Nb4 a6 Rh4 a7 Nd5 a8R Bd2 a5 Nh6 a6 Nc3 a7 Ne2 Na3 Rc4 Rb8 Qb6 d8N+ Kc5 a8N Kb4 Kh7 Be3 g6 Qa5 g7 Rc6 g8N Nf5 Nb6 Nh4 Ra2 Nc3 Nb7 Bd2 Na4 Ng2 Nh6 Qa8 Ng6 Qa5 Nf5 Qb6 Na5 Qa7 Rb7 Nd5 Nd4 Qb8 Nc3 Ngf4 Bg2 Nh3 Bb2 Rc7 Qa1 c1Q Nd1 Qc6 Qd8 Rc8 e8R Ka4 Re4 Ne7 Rf4 Ng8 Qe7 Bb4 Bc1 Qd5 Rd2 Rc3 Nac2+ Ra3 Bf3 Qe8 Qa2 Qdc6 Qae6 Rb3 Ba3 Qd5 Qa6 g2 Nge2 Qdc6 Rf1 h1Q Ng1 Qh2 Rh4 Qe5 Rf4 Qb6 Ra7 Qec5 Ba8 Qd5 Rb7 Qbc6
3N2k1/1N1R4/pR6/4NK2/qBq1rpB1/1RB1RB1R/1p1PrQr1/1N1b3n w - - 0 1 legal: proof: f4 d5 g4 b5 c3 h5 gxh5 e5 fxe5 b4 Qa4+ Nc6 Qd1 b3 a3 Nb4 axb4 Bc5 Bg2 Bd4 Bf1 c5 c4 Bc3 cxd5 c4 Ra4 Bd4 Ra1 c3 Bh3 c2 Bf1 Bc3 bxc3 Qc7 Nh3 Qd7 Ng1 Qd8 Kf2 Kf8 Ke3 f5 Kf4 g6 h4 a6 e4 Qa5 c4 Nf6 e6 Bd7 e7+ Kg7 e8N+ Kf7 c5 Rd8 h6 Ng4 h5 Kg8 h7+ Kf7 b5 Ra8 h6 Ra7 d6 Qa2 c6 Rf8 h8B Nh2 c7 Rg8 c8B Rg7 e5 Rb7 b6 Nf3 e6+ Kf8 e7+ Kg8 h7+ Kf7 Bg2 Be6 d7 Qa5 Qe1 Ne5 Nf3 Rg8 Ba3 c1R Qf2 b2 Bb4 Re1 Ra3 Qa4 Rb3 Re2 Rh3 Ng4 Bc3 Re4+ Kg5 f4 h8R Bc4 R8h5 Be2 Rh7+ Rg7 d8N+ Kg8 Bf5 Bd1 Nd6 Rb8 b7 Re2 Qd4 Nf2 Bg4 Nh1 Ne5 Ra8 Kf6 g5 Qf2 Rc8 b8R Rc4 B2f3 Rce4 Kf5 Rg6 Bh5 g4 Rb6 g3 Bhg4 g2 N6b7 g1Q Rf7 Qf1 Rfh7 Re1 Rf7 Qc4 Rfh7 Qc5 Rf7 R1e2 e8R+ Qf8 Ree6 Qc5 Rd7 Qc4 Nd3 Rd4 Re3 Re4 Ne5 Rg7 Bh5 Rg3 Bhg4 Rg2
5n1k/2bq2bP/1Qq2Q2/R1BRQ1Kr/2pp3p/BBBQQ3/Q3N3/1b3N2 w - - 0 1 illegal: No proof kernel
3nr1Bk/BRP1p3/NNrp1qbp/4R3/1R4N1/4B3/q1QKB1B1/2RN1r2 w - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 f5 e4 b4 exf5 b3 f6 Nc6 g3 Ba6 axb3 Bb7 b4 Nb8 b5 Bc8 h4 g5 Ra5 Nc6 Ra1 Nd4 g4 Nf5 gxf5 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Kf7 Ne2 Kf8 Ng1 Ke8 c4 Kf7 b4 a5 b6 h6 c6 d6 b7 g3 b8B g2 c7 a4 c5 a3 c6 a2 b5 Kf8 g6 Be6 c8B Qd7 g7+ Kf7 b6 Bd5 c7 Ra3 b7 Rh7 Rh5 Be4 Nh3 g1R Kd2 Ra6 Bg2 Qa4 Nc3 Rh1 Nf2 Bc6 Qc2 Rb6 Ncd1 Rb1 Ng4 Qa6 Ba7 Qb5 b8N Re1 Ba6 Qb7 Be2 Rb3 Na6 Rb6 Rb1 a1Q Rb4 Ke8 f7+ Kd7 f8R Be4 f6 Ke6 f7 Qa8 Rg5 Nf6 g8B Nh5 Rb8 Rf1 Rb7 Bg6 f8R+ Rf7 Rgb5 Rc6 Rg5 Ng7 f5+ Kd7 f6 Ne6 Rh5 Nd8 Re5 Rh7 Rf7 Ke8 Rg7 Kf8 f7 Bd3 Rgg5 Rh8 Rgf5 Kg7 f8N Qa2 Nd7 Qc8 Nb6 Qce6 Rc5 Qf6 Rfe5 Bg6 Bb2 Rh7 Bd4 Kh8 Be3 Rg7 Qb2 Rf7 Rc1 Rf8 Qc2 Re8
Nr4K1/RNB3nn/BB1b4/1qN1qrRQ/b2kn1N1/P4B2/4r1NR/1R2q3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 g5 d4+ Kb4 f4 c5 h4 b5 f6 g4 f5 g3 d6 g2 a6 c4 d7 e6 f7 c3 f6 c2 a7 Qe7 d8N Rh7 h6 Bb7 h5 Ba6 d5 Kc5 d6 b4 d7 b3 Ne2 g1N Nd2 b2 Nb3+ Kc4 Nb7 b1R d8B Rg7 h7 Rg2 h8R Rg4 h6 Rh4 h7 Qa3 Bc7 Rg4 N3c5 Qa5 Nf4+ Ne2 Be3 c1Q Ng2 Nh6 Rg8 Nf5 h8R Ng7 R8h2 Rb5 a3 Qcd2 Rb1 Qdb4 Rg1 Be7 f8N Rd4 f7 Rd2 Rgh1 Bd6+ Kf6 e5 Nfe6 e4 f8N Nd7+ Kf7 Nf6 Ng6 Rb8 a8B Nh7 Ne5+ Kc3 Bg1 e3 Ng4 Ng3 Bd3 e2 Bc4 N7f5 Rg5 e1Q Be2 Ne4 Bc4 Bf8 Kg8 Ng7 Be3 Ra2 Rf1 Re2 Rf7 Qb2 Qd5 Qa4 Qf5 Ra5 Qg6 Qab4 Qh5 Bb5 Re7 Bc6 Ba6 Qb5 Nd6 Ra4 Nb3 Qb6 Nc4 Nd2 Be5+ Qd4 Nd6 Rab4 Nc7 Ba4 Bf3 R4b5 Na8 Ne4 Ra7 Rd5 Bg3 Rf5 Nb7 Qf6 Bd6 Qe5 Bc7 Qb5 Beb6 Bd6+ Bd8 Kd3 N3c5+ Kc4 Rh4 Qe5 Rh2 Nf8 Bdc7 Kd4 Qf7 Nh7+ Qe8 Nf8 Qh5 Nh7+
1NbBKBr1/b2N2bN/B2qrrQ1/8/P4n2/NNqN1k2/RQ3B1q/6nR w - - 0 1 illegal: No possible last move
2bn1bNn/1k1rNb2/4R1N1/BB3b2/bR1NR2n/PQ3B1B/R3K1r1/2q3R1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 Kd7 e4 f5 d4 h5 a3 b5 e6+ Kd6 g6 c5 e7 Kc7 e8B b4 a6 f4 e5 c4 e6 h4 g7 f3 e7 f2+ Ke2 c3 g5 b3 a7 b2 g6 h3 d6+ Kb7 d7 c2 d5 h2 d6 Rh6 Nf3 Rh8 Rg1 h1B Ra2 Nc6 Nh4 Bg2 Bd2 Nb8 Ba5 Nc6 Nd2 b1B Ndf3 Nh6 g8N Rh7 g7 Nf7 Ng6 Nh8 Nd4 Qc7 d8R Bd5 d7 Bf7 Bh3 Qf4 Qd3 Qc1 Qc4 Ne5 Qc3 Nf3 Qd3 Nh4 Qe3 Rb8 a8B+ Ka7 Qg3 Rb2 Qb3 Ka6 Bf3 f1B+ Kf2 Bg2 Ke2 Ka7 Bfg4 Bc6 Bf3 B8b7 Rc8 Ba4 Rc4 Bc8 d8R Ka6 Bb5+ Ka7 Nc6+ Kb7 e8R Qf4 Rdd4 c1N+ Kd1 Ne2 Nf6 Bfe6 Nd5 Bbf5 g8N Rd7 Rb4 Bf7 Rde4 Nd4 R8e6 Rg2 Nde7 Qe3 Rf6 Ne6+ Nd4 Nd8 Rfe6 Qh6 Ke1 Rg4 Kf2 Qc1 Ke2 Rg2+
3BNR2/4br2/k4n2/1r2RP2/K2q1N2/Rr2BnN1/nBBRN3/N1Qb2bn w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 e5 f4 c5 d4 Kc7 Kd2 Kb7 Kc3 g5 Kb3 a5 d6 g4 f6 e4 f5 e3 d5 e2 f7 e1N h6 g3 b6 g2 h5 c4+ Ka4 c3 h7 c2 h6 Qc7 d7 Qg3 d8B Qf2 b5 Ra6 d6 Qc5 d7 Qd6 Na3 Be7 f8R Qc5 Be3 c1B Nc2 Qc7 Ne2 g1N Ra3 Bb2 Na1 Ra7 Ng3 Ngf3 Bd3 Qe5 Bc2 Nc6 Qc1 Nd3 Re1 Nf6 Re2 Rg8 h8B Ncb4 h7 Bd4 Bg7 Qe4 h8N Na2 Ng6 Nf2 Nf4 Nh1 Rd2 Rh8 Nfe2 Rh7 Bh8 Rf7 Bg7 Ra8 Re8 Rb8 Bh8 Ka8 b7+ Ka7 b6+ Ka6 Bg7 Bd6 Re5 Be7 Bc7 Qh4 d8N Be6 Bh8 Bd5 Ne6 Qe4 Bd8 Qh4 Bg5 Bg1+ Bf4 Bc4 Be3 Qd4 N6f4 Qd6 Nc3 Be2 Bg7 Bd1 Nce2 Ra8 b8R Qd4+ Kb3 Ra7 Rc8 Rc7 b7 Rc5 b8N+ Kb7 Nd7 Ka6 Bb6 Rd5 Rg8 Rc5 Bd8 Rc3+ Kb2 a4 Rf8 Rc5+ Rc3 a3+ Kb3 Qd5+ Ka4 Rb5 Nb6 Qd4+ Nc4 Nb4 Bh8 a2 Ra3 Qb2 Nd6 Qd4 Nb3 a1R Ne8 Rb1 Na1 Rb3 Re4 Qd6 Re6 Na2 Bg7 Nh5 Bb2 Nf6 Re5 Qd4+
3B1Q1r/2QRn1Q1/1RRNk3/1q2nr1q/Qn1b1n2/1n1R2P1/Q1B1N3/1b2K2Q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 d4 e5 f4 a5 g6+ Kf6 g7 h5 d6 c5 g3 e4 d5 a4 d7 h4 d6 h3 b6 e3 b5 c4 b7 h2 b6 c3 Ne2 c2 Nbc3 a3 Ne4+ Kf7 f6 a2 f5 Rh4 Rb1 Qe8 d8R a1Q d7 Nc6 b8Q Rh5 b7 Rh7 Qa7 Rh5 b8Q Be7 Qbc7 Qa4 Rb6 Qb5 Qa4 Bc5 Bh3 Nge7 Nd6+ Kg8 Bg2 Bd4 Be4 Ne5 Rf1 h1N f7+ Kh7 f8Q Nf2 f6+ Rf5 f7 Kg6 g8Q+ Kf6 Rg1 Nh3 Qfg7+ Ke6 f8Q+ Qf7 Bd2 c1N Ba5 Nb3 Bc2 Nf4 Rh1 Bb7 Rh4 Be4 Rh6+ Rf6 Qda1 Bg6 Q8h7 Rf5 Q1a2 Qe8 Rc8 Rb8 d8R Ra8 Rd7 Rb8 Nc3 e2 Rh2 Ra8 Rg2 Rb8 Qh1 Bh7 Rf2 Qh5 Rf3 Ra8 Qcd8 Rb8 Rcc6 Ra8 Qc7 Re8 Re3 Ra8 Kf2 e1N Ne2 Ned3+ Kf1 Nb4 Rd3 Re8 Ke1 Rd8 Qfh8 Rg8 Qf8 Bg6 Qhg7 Rh8 Ra6 Be8 Rd2 Qh7 Bd1 Ng8 Qb7 Rf6 Bd8 Qh5 Rab6 Bg6 Qc7 Bb1 Bc2 Ne7 Rd3 Rf5
2nN2B1/1n4RN/1nn1Nr1b/r3qb1R/1K3Q1P/B4Bnk/1BQ3q1/B1B4N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Ke7 b4 c5 d4 a5 Kd2 f5 Kc3 g5 h6 c4 b6 a4 d6+ Ke6 b7 a3 b5 f4 d5+ Kd7 b6 g4 e6+ Ke8 h7 f3 e5 f2 e7 Kd7 e8N a2 Ng7 g3 Nf3 g2 Qc2 g1Q Kb4 c3 Ng5 Ra7 N7e6 Qg4+ Bc4 f1N Nd2 Ng3 Nde4 Qh5 Nf2 Nf6 h4 Qh6 Rg1 Ra5 Nh1 Qe7 Rb1 Rg8 h8B a1N Nh7 Nge4 Rg7 Nb3 Be2 Qe3 Bf3 Qf2 Bb2 Qd2 Rbg1 Qf2 R1g5 Qg2 Rh5 Nbc5 Ba1 Ng3 Bb2 Nfe4 Bc1 Ke8 Ba3 Nbd7 b8B Nb7 Bc7 Qg5 Bd8 Qf4 Bg5 Qf5 Bgc1 Qf6 Rf7 Bh6 Rg7 Rf8 Bcb2 Qf4 Bc1 Rf6 Bab2 Nbc5 b7 Nb6 b8Q Nb7 Qc7 Rf7 d7+ Ke7 Qc4 Ned6 d8B+ Kd7 Be7 Rf6 Q2e4 Qf5 Qf4 c2 Qd3 Nb5 d6 Na7 Be3 c1N Qc2 Nb3 Bec1 N3c5 Ba1 Nd8 Bab2 Bb7 Ba1 Be4 Bab2 Nac8 Bf8+ Kc6 d7 Kd5 Ba1 Ncb7 Bc5 Nf7 d8N Qg5 Nd4 Qf5 e6 Ne5 e7 Qg5 e8B Nc6+ Kc3 Qf5 N4e6 Qg5 Bf7 Qe5+ Bd4 Kd6 Bg8 Bf5 Kb3 Rf7 Bdb2 Ke7 Nhg5 Kf6 Ba3 Rf8 Rc7+ Kg6 Nh7 Rf6 Nf2 Qd6 Nh1 Rf7 Bhb2 Rf6 Rf7 Qe5 Rd7 Bd3 Qfc4 Be4 Nhg5 Kf5 Rg7 Nb8 Kb4 Bd3 Be4+ Kg4 Nh7+ Kh3 Bf3 Bf5 Qf4 Nc6+
RRR5/1bRb1B2/R2Rn3/1n1Q1qkP/bNKb2NN/2b1r1B1/1Q1rNq2/8 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 f5 b4 a5 c4 d5 h4 g5 e4 a4 h6 d4 b6 g4 b7 f4 b5 a3 c6 a2 c7 f3 h7 f2 e6 Kf6 e5+ Kf5 b6 g3 h5 g2 c5 Qh4 e7 Be6 e8N Ne7 c8R Bh6 c6 Ra6 c7 Nd7 b8Q Bf8 b7 Ra5 Nc3 Bg7 Nd5 Qe4+ Kc4 Ra3 Bf4 Nf8 Nf6 Bd7 e6 Nc6 e7 Ne6 e8R Na7 Bg3 Re3 Nb4 Kg5 Ng4 Qf5 Ne2 g1Q Bh3 Rf8 h8N f1B Ng6 d3 Nh4 d2 Rcd8 Rg8 c8R Qgf2 Qe5 Rf8 b8R Bg2 Qb2 Bd4 Rc7 Ba8 Rdc8 Nb5 Bg2 Bc3 Bd5 Bb7 Qdb3 Rf6 Rhd1 Bd4 Rh8 Rf8 Ra8 Rd8 Ra6 Bc3 Rab1 a1B Re8 Ned4 Bf7 Ne6 Rf8 Bd4 Qd3 Bc3 Qd5 Bd4 Qc1 Bac3 Qb2 Bdc6 Rba1 Rd6 Rfd8 Bd7 Rdb1 d1B Raa8 Qh2 R1a6 Ba4 Rd1 Qf2 Rcb8 Bdc6 Rdc8 Be8 Ra1 Rd8 Rd6 Bd7 Ra3 Bc2 R3a7 Ba4 Raa6 Bh8 Qc5 Be8 Rdb6 Rd2 Qd5 Bhd4 Rd6 Bd7
bRNR3q/3b1P2/q1b1b1R1/3n1QR1/2RK2Bb/Q7/1N1kBr1B/nr3B1R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Kc3 b5 a4 d5 f4 e5 g4 h5 c6 h4 c7 e4 a6 e3 g6+ Kf6 g7 e2 a5 e1Q+ Nd2 h3 g5+ Kf7 a7 h2 f6 Ke6 f7 Kf5 g6 b4+ Kd4 b3 c4 b2 a6 b1B c5 Qde8 c6 Q1e7 Qc2+ Kg4 f5 Kf4 f6 Rh3 Ra5 Bb7 c8R Qe6 c7 Q6c6 Nc4+ Re3 Nb2 Nd7 Nf3 Be7 f8Q Nc5 f7 Rb8 a8R Bh4 a7 Ne7 g8R Qa6 g7 Ba2 Ne5 Bc6 Nd7 Kf3 Rh8 Re2 g8R Rf2 Nb6 Qd8 Bf4 Nb3+ Kc3 Rb7 Qf5 Na1 Rg6 Rb8 Bd6+ Ke3 Rb5 Rb7 Rab8 Qe8 a8B d4+ Kb4 d3 Kc5 Kd2 Kd4 Bd7 Rd8 Bae6 Nc8 Rb6 Bf3 Nd5 B3e2 Bc6 Rh5 Bed7 Qe7 Qh8+ Be5 Be6 Rb4 Rb7 Rhg5 Bcd7 Rhg1 h1B Rc4 Bc6 Qa3 Be4 Nd1 Rb1 Nb2 Bed7 Qg4 Bef5 Rh1 Bfe6 Qh5 Ke1 Qf3 d2 Qg4 d1B Qf5 Qe8 Bh2 Kd2 Nb6 Ba8 c8B Bdc6 Bd7 Bda4 Nc8 Qh8+ Qe5 Bh3 Bdg4 Bd7 Qf6 B4c6 Qe5 Bg2 Qf6 Be4 Qe5 Bef5 Qf6 Bfe6 Qe5 Qh7 Qf5 Qh8+
1b2r2R/5QrN/1QQ1N2k/3qR3/2Qb1rQ1/n3q1BN/n4P1Q/bBNK3b w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 d4 a5 b4 g5 b6 Kg7 d6 c5 h6+ Kh7 d7 e5 h5 g4 d5 e4 d6 a4 f6 c4 b7 a3 f7 e3 b5 a2 b6 e2 Nc3 g3 Nh3 g2 Bf4 g1B Bg3 Qe8 d8Q Qe4 d7 Qc2 Qe8 Qe4 d8N Qe5 Ne6 Na6 b8Q Bc5 b7 Qd5 Qd6 Bh2 b8Q Nc7 Qbb6 Nf6 Qdc6 Ra4 Qdb3 Nb5 f8N+ Kg8 Qe7 Na3 Nh7 Bb7 Rd1 a1B Na2 c3 Qc4 c2 Nc1 Bcd4 Bg2 Be3 Be4 Bed4 Rd3 Ra7 Re3 Ra4 Kd2 e1R Bd3 Rb4 Re5 Rg1 Ke2 Ne4 Qg5+ Kf7 Qg4 Nc3+ Kd2 Rb3 Nf6 Qd6 Bf4 Qf8 Nhg5+ Ke7 h7 Nd5 h6 Nc3 Rd5 Rg3 Na2 Rg1 Qg2 Rc1 Qc8 Rg8 h8Q Rcb1 h7 Rg1 Rb5 Bd5 Q8c6 Qd8 Be4 Rf8 Qg8 Re8 h8Q Qd7 Bd3 Bf3 Rf5 Qd5 Qh5 Be4 Qe2 Bg3 Rh8 Bf3 Qh3 Bh1 Nfh7 Rg2 Qd1 c1Q+ Ke1 Bh2 Bb1 Rg3 Qg2 Rg4 Nh3 Rg7 Bb8 Qh6 Nc1 Na2 Qde2 Rf3 Kd1 Qe3 Rh5 Bg3 Qh2 Rf5 Qg4 Bge5 N7g5 Kf6 Bc7 Kg6 Bd6 Bf6 Bg3 Bfe5 Qf8 Bb8 Nh7+ Qg5 Qe4 Qe3 Rg5+ Kh6 Qf7 Bc7 Qg4 Rf4 Re5 Bb8
2K2RQb/1r2Bq2/kbNr1Nn1/1b3R2/1q1r1RB1/5RQR/NRPr4/6Nn w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kd3 Kd7 Kd4 Kc7 Ke5 Kb7 h4 g5 b4 a5 f4 g4 h6 g3 b6 d4 h5 a4 b5 d3 h7 a3 h6 d2 f6 g2 f5 e6 f7 a2 f6 Ra3 c6+ Ka8 c7 Kb7 Rh3 Ra7 Nc3 Qd7 Rb1 a1B Rb2 Ne7 Rf3 Ra8 Na2 Qd8 Be2 Nf5 Qe1 d1R Bg5 Qe7 Qg3 Bd7 c8R Rd2 Rc4 Ra4 Rcf4 Rad4 Bh4 Rg8 h8R Rg6 h7 Bh6 f8Q Qf7 Qg8 Bf8 Bg5 Bc5 Bd1 Na6 Be2 Nh4 Rf5 Rg7 R3f4 Rd6 Bg4 Bf2 Rf3 Nc5 R5f4 Ne4 Rf5 Qe8 f7 Bc6 f8R Qf7 Be7 Bc5 Bd8 Nf2 Be7 Nh1 R5f4 Qg6 R8f5 Qf7 Qd8 Bd7 Rf8 Be3 h8R Ng6+ Ke4 e5 Rh3 Bd4 Qe8 Re6 Kd5 e4 Qd8 e3 Qe8 Re4+ Kd6 e2 Qd8 e1Q Qe8 Bc6 Qd8 Bd5 Kd7 Bc4 Qe8 Rd3 Qd8 Qb4 Qe8 Rd2 Kd8 Kb8 b7 Ka7 b8N Bb6+ Kc8 Red4 Nd7 Rd6 Nf6 R2d4 Ne2 g1R Qd8 Rg2 Ng1 Rgd2 Qe8 Bd8 b6+ Ka6 b7 Bb6 Qd8 Bb5 b8N+ Ka5 Nc6+ Ka6 Qe8 Qfb3 Bd8 Rb7 Qf7 Qd5 Qg8 Qf7 Be7 R4d5 Rb1 Be5 Rb2 R5d4 Nh5 Bg7 Nf6 Bh8
1NRNnB1B/qq6/2B1Q3/1r1NB2b/3b1NrR/3PrqQ1/5N1n/Nk2r2K w - - 0 1 illegal: No possible last move
1kb1q3/n2q4/1KnNB2r/4r1qN/b1QR2P1/1RBBbN2/B4QNB/1q3B2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kd4 a5 g4 h5 b4 f4 e4 f3 d6 a4 Kc5 f2 d4 a3 g6 h4 d5 h3 g7 a2 e6+ Ke8 b6 c6 b5 h2 b7 Qa5 e5 Kd8 e7+ Kd7 e8B+ Kd8 e6 Nh6 g8B Qd2 b6 Qe3+ Qd4 Ra7 Bef7 Qd3 e7+ Kd7 e8B+ Kd8 Na3 Qh3 Nc2 Qe3 Ne1 Qf4 Be6 Ra4 Bg6 Qe4 Qc4 Rh7 Ngf3 Nf7 Bd2 Ne5 Ng2 Rh6 Rb1 a1Q Rb3 Qab1 Bc3 Rb4 Rg1 h1B B6h7 Bg7 d7 Qee1 Bhd3 Rb5+ Kd6 c5 Bf7 Nbc6 b8Q Qec1 b7 Qg5 Qa7 Qe1 Qa2 Na7 b8B Nec6 Qb4 c4 Bfe2 f1Q Bdg6 Qef2 Bef5 Ne7 Bb1 Qfh4 Be5 c3 Nge1 c2 Nd4 c1Q Qc4 Rb6+ Kc5 Qhh5 Be6 Rd6 Bh2 Rb6 Bbe5 Qcf4 Rg2 Q1f2 Bf1 Q2f3 Rd2 Nf5 Qb2 Qc3 Ba2 Ng3 Rd3 Bg2 Qf2 Nf5 Bf6+ Kc7 d6+ Kb8 d8N Qa1 d7 Bd5 Ndf3 Qb1 Nb7 Ne7 Ng2 Bc6+ Rd5 Bb5 Bc3 Nec6 Bh7 Qfe5 Bhd3 Qc7 Nd6 Be5 Rd4 Ba4 d8N Qce7 Bef5 Qd7 Ne6 Qhe8 Ng7 Bf4 Nh5 Be3 Bd2 Ne5 Be6 Rb7 Bb4 Rc7+ Kb6 Rc5 Ba5 Nec6 Bc3 Re5
2n1Q1b1/5B1K/Bk2Br2/R1q1NB1R/2rP2qN/2B1b1RR/1rBQ1n2/1rn5 w - - 0 1 illegal: No possible last move
3NrR2/1BB4R/2R2P2/B1KBr2n/RQ1r4/nRb3q1/rnkN2bN/qN6 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 g4 a5 b4 c5 d4 h5 f4 a4 b6 h4 b5 a3 b7 c4 b6 a2 g6+ Kf6 d6 e4 d5 h3 Kd4 e3 g7 h2 d7 e2 g5+ Ke7 g6 Kf6 d6 e1R Bd2 c3 Nf3 c2 Bg2 c1R Qa4 Qe8 d8B+ Qe7 d7 Rh6 Bc7 Rc2 Ba5 Na6 b8R Qd8 b7 Bb4 Nc3 Qe8 Nd2 Rh4 Rc1 Re3 Ncb1 a1Q+ Kd5 Ra2 Bf3 Nh6 g8B Nc5 g7 Ng4 Be6 Qg6 g8N+ Kg7 Bg2 Ne5 Nf6 Nc4 Ng4 Na3 Qb3 Na4 Bf3 Ra6 d8N Nb2 Rc4 Bc3 Ra4 Rh8 Kc5 Rd6 Ra8 Rd7 b8R Bb7 Ra6 Rd4 Qc4 Ba8 Rb3 Re8 Qb4 Bd5 Bc8 R3e5 Rc6 Qg5 Bb7 Qh4 f6+ Kg6 f7+ Kf5 Re1 h1N Rd1 Ng3 Rh1 Qg5 Rh7 Nh5 Nh2 Qg3 Bh1 Bc4+ Bd5 Bf1 Bd6 Bg2 f8R+ Kg6 f5+ Kg5 f6 Kf4 Ndf3 Ke3 Bdc7 Kd3 Nfd2 Kc2
R1b5/5R2/1BRbP3/1b2BBNn/4R2R/1b2K1qq/R1r2QqN/QBrkn3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 f5 g4 h5 b4 c5 e4 a5 b6 h4 e6+ Kd6 b5 c4 e7 h3 e8R f4 g6 a4 g7 h2 g5 c3 e5+ Kd7 b7 f3 g6 a3 d6 a2 b6 Kc6 d5+ Kc5 d7 Kb4 d6 c2 Bh3 Kb3 Nd2+ Kc3 Nf1 Qh4+ Ke3 f2 d8B Qb4 d7 Qb3 Bf5 Rh3+ Nf3 Rh4 Ng5 Nf6 g8Q Rha4 g7 Nh5 Qf7 Bd6 g8B Rc4 Bgh7 Nc6 b8R Nd4 b7 Nf3 Bb6 Ra5 d8R Rac5 Ba3 Qb2 Rc1 a1Q Ra8 Qb3 b8R Qaa2 Rb7 Rc7 Rg1 h1B Nh2 f1B Rg2 R4c6 e6 Bb5 Rh8 Rc5 Qf1 Rc4 Re1 c1Q+ Rd2 Qcd1 Ree2 Qdc2 Qa1+ Qcb2 Bac5 Qaa3 Rd4 Bg2 Re4 Bf1 Rg2 Be2 Bd4+ Kc2+ Bc3 R4c5 Rf2 R7c6 Rba7 Q2a2 Rf1 Bd1 Rdd7 Rc4 Rdc7 R6c5 Rc6 Q2b2 Qa2 Kc1 Qf6 Qg2 Rf2 Bc2 Rf7 Kd1 Qe5 Qa7 Qg3 Qb8 Re2 Qa3 Qf2 Bb3 Be5 Rc1 Qa1 Qc7 Ra2 Rc2 Rh4 Qa4 Rhf8 Qag4 R8a4 Q4h3 Rae4 Bb7 Rfa8 Bc8 Ref4 Rb2 Bb1 Rbc2 Bf5 Qb8 Re4 Qc7 Rf6 Qg7 Rf7 Qg8 Nh7 Q8g3 Ng5 Ne1+
2N1n1QN/P2N4/q6r/Rn2R2B/b3rb2/1q1NknB1/2BRBr2/rB3R1K w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 c5 f4 e5 Kf2 h5 g4 b5 Kg2 h4 d6 e4 d5 c4 g6+ Kf6 g5+ Kg7 d7 b4 a6 c3 a5 c2 a7 e3 a6 e2 d6 e1Q Nh3 b3 Nd2 b2 Nf2 b1N Nde4 Qe7 d8N Qf7 d7 Nf6 Qg4 Qe3 Be2 Ba3 Nd3 Be7 Ra5 Qc4 Nf7 Nd5 d8R Bb4 Rf1 h3+ Kh1 h2 Ned6 Qe8 f6+ Kf8 f5 Bc5 Bf4 c1R Bg3 Rh4 Nh8 Ndc3 f7 Kg7 f8R Qeb5 Rfe8 Qbb3 Re5 Bd7 Nc8 Ba4 Rd4 Bd6 f6+ Kf8 f7 Kg7 f8N Nd7 Rdd5 Nf6 Nd7 Ne8 Qe6 Rb8 a8B Nb5 a7 Nd2 Rd4 Rd1 Baf3 Re4 Bh5 Ra1 Qg4 Nf3 Rdd5 Kg8 g7 Kh7 g6+ Kh6 g8B Qc6 g7 Qa6 Bh7 Rb6 Rf5 Bf4 g8B Rf6 Rfe5 Rf8 Qe6+ Rf6 Bf5 Kg5 Bgh7 Rf7 Nf2 Rf6 Rd2 Rh6 Nd3 Ra2 Kg2 h1R B7g6 Ra1 Qg8 Rh4 Be1 Rg4+ Kh1 Rg2 Bg3 Rf2 Bd1 Nh4 Bc2 Nf3 Bb1 Nh2 Be2 Nf3+ Bh5+ Qg6 Rfd1 Rb4 Nd6 Be3 N3c5 Rg4 Nc8 Rc4 Bh4+ Kf4 Bfc2 Qa6 Rc1 Re4 Rf1 Bd4 Bg3+ Ke3 Rg5 Be5 Nd3 Bf4 Rf5 Qc4 Re5 Qb3
k1q5/nN3R2/r2N2Kb/1n1B2R1/NN3R2/2B2RQ1/NQ2PNrn/n2rrb2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 c5 b4 Kc7 d4 Kb7 h4 a5 b6 a4 b5 a3 d6 g6 e6 c4 d5 a2 d7 c3 e7 c2 Kg5 f4 h6 f3 h7 f2 h5 Ra3 h6 Ra7 d6 Na6 Rh3 Kb8 b7 Qa5 d8R Qc3 e8N Ra8 d7 Ra7 Qe1 Bg7 Bg2 f1R Bd5 Rf7 Bb2 c1N Nd6 Be5 Qg3 Qa5 Bc3 Nb3 Rf8 Qc7 d8N Rf1 Rf7 Re1 Rh4 Nd4 Nh3 Qc6 Nf2 Nb4 Rhf4 Nf6 Rf3 Rf8 h8Q Ng4 h7 Nh2 Qf6 Qc4 h8R Ra6 Rh4 Nbc6 Rhf4 Rg8 Qh8 Ka7 b8N+ Ka8 b6 Bh3 Nd7 Nb5 N8b7 Bg7 Ndc5 Bf1 Na4 Bh6+ Kf6 g5 Kf5 Rd8 Kg6 g4 Qd4 Qc5 Qb4 Rc1 Qb2 Rg8+ Bg7 Rd1 Nbc3 Re1 Rd1 a1N Na2 Rd8 Bc3 Nca7 Rdd3 Qc6 Rde3 Qc7 Re5 Qc8 Rg5 Rd7 Qh3 g3 Qh4 g2 Qg3 g1R Bc6 Bh3 Nde4 Nd6 Nbc5+ Kb8 b7 Kc7 b8N Bf1 Bb7 Rg2 Nc6 Ndb5 Ba8 Nd6 Ncb4 Kb8 Bc6 Ndb5 Nb7 Rd5 Ned6 Rdd1 Bd5 Ka8
N1RbB3/2KbrNBk/1N3B2/2Br2Qn/6r1/n2RBRrP/2q1n1N1/3R2n1 w - - 0 1 illegal: No possible last move
R2K2B1/r1bBr1RN/1b1rN3/qbP4N/B4BRn/1r6/2Q2N1R/1Nb2k1n w - - 0 1 illegal: No possible last move
b6B/BrQN3N/1nn3P1/r1QRB2k/rRbB4/Q1r1bb2/1BQ3B1/q3K3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 h5 e4 c5 d4 f5 g4 Kf7 b6 Kg6 d6 a5 d5 c4 b7 c3 b5 c2 e6 f4 d7 f3 d6 h4 b6 a4 e5 h3 e7 a3 e8Q+ Kg7 e6 a2 g6 h2 e7 Rh5 g5 Ra6 Na3 Ra7 Bg2 Ra8 Rb1 a1R Qf7+ Kh8 e8Q Qc7 d8B Ne7 d7 Ng8 g7+ Kh7 Qee7 Nf6 Nh3 Qc6 Qc5 Rh6 Nc4 Nh5 Bb2 c1R Bdf6 R1a2 d8B R8a5 Ne5 Nf4 Nd7 Rc3 Bd4 R2a4 B8f6 Nd5 Qc2+ Rg6 Rf1 h1B Rf2 Qc7 Rd2 Nc6 b8B Bb7 Ba7 Ba8 b7 Nb6 b8B Qd6 Bfe5 Qf6 Qfb3 Be7 Qba3 Bd8 Rd3 Rh6 Bbd6 Kg6 g8Q+ Kh5 g6 Rh7 Qf7 Bc7 Ng5 f2+ Kf1 Rg7 Nh7 Bd8 Ke2 f1B+ Ke1 Be2 Rdd1 Bc4 Bf8 Bc7 Qfe7 Rf7 Bg7 Bd6 Bh8 Bc7 Bh3 Bf3 Bg2 Bd8 Rd2 Qg7 Qed6 Bg5 Qc7 Bh6 Ba1 Be3 Rb4 Rf8 Bb2 Rb8 Rf2 Rb7 Rf1 Bg4 Rf6 Bf3 Rd6 Qf6 Rd5 Qf5 Qd2 Qb1+ Qc1 Qa2 Qc2 Qa1+
1q1r2BQ/B2N4/Rr1NN1b1/1B3B1B/N1K1B2q/nQ2Pnbn/pqR5/1k6 w - - 0 1 illegal: No possible last move
nk1r1b1q/1NN1B3/1bn4B/1Q4bB/r1N1n1B1/3p3N/QqRP2N1/RN4K1 w - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 g5 a4 d6 e4 g4 exf5 g3 b6 Bd7 b5 Nh6 b7 Bc6 b6 Bb5 axb5 Qc8 hxg3 Qd8 g4 Ng8 g5 Bg7 Ra4 Bh6 Ra1 Bf8 g4 Kd7 f4 a5 Kf2 e5 f6 h5 g6 c5 f5 e4 g5 c4 g7 c3 g6 c2 f7 a4 f6 a3 Nh3 e3+ Kg1 a2 Qe2 h4 Ba3 d5 Be7 Nh6 g8Q c1Q g7 Nc6 b8N+ Kc8 b7+ Kc7 Nd7 d4 b8N Ra7 b6+ Kb7 Ne5 Qc8 Nc4 Ra6 Nd7 Nf5 Nc5+ Kb8 b7 Ra4 Qh5 Qc3 Be2 d3 Bg4 e2 Qg5 e1B Bh5 Kc7 b8N Qb2 Nb7 Nd6 Qb5 Ne8 Bg4 Bg3 Bh5 Qd8 Na6+ Kc8 Nc7 Bf2+ Kg2 Qdd4 Rc1 Kb8 Rc2 Be3 Kh1 Bg5 Kh2 Qe5+ Kg1 Qec3 Nd5 Nc7 Nde3 Qe5 Ng2 Na8 Qh7 Qe2 g8B Qee5 Qf5 Qec3 Qe6 Qe5 Bh7 Qec3 Bf5 Qe5 Nhf4 h3 Bfg4 h2+ Kf2 h1N+ Kg1 Ra7 Nh3 Ng3 Qed5 Ra4 Qe6 Bg7 f8B Ne4 f7 B7h6 Bg7 Rd8 f8N Qec3 Qg8 Qf6 Ne6 Qf8 Qf7 Qh8 Bd4 Bf8 Nc7 Na5 Bg7 Nc6 Nc3 Nc5 Bh6 Ne4 Re1 a1B Nb1 Qb4 Rd1 Qbb2 Nce3 Rd6 Qa2 Qc1 Na3 Rd8 Nec4 Bag7 Re1 Qb2 Ra1 B7f6 Nb1 Bd4+ Kh2 Bb6 Kh1 Ba5 Kg1 Bb6+
1BQKnb2/1NNr1Q2/N1NqN2n/r6R/2RR4/1p1q1qNP/1b4k1/1b1BR3 w - - 0 1 illegal: No possible last move
nQn1rQN1/2q3QB/Q1q3b1/1Q1R2N1/nR1B2Pp/kB1Qr2r/7b/K4B2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 g4 h5 d4 a5 Kd2 f5 Kc2 c5 Kb2 a4 e4 f4 d6+ Ke6 d7 c4 b6 h4 d5+ Ke7 b5 f3 e6 Kd6 g6 Kc5 e7 Kb4 e8Q f2 g7 Qf6+ e5 Ne7 g8B Qc6 d8Q Ra5 e6 Rh7 d6 Qb7 d7 Qd5 b7 Qe4 b6 Rhh5 Qf7 Nbc6 b8Q Nd4 b7 Qc6 Nh3 Ra8 Qb6+ Nb5 d8Q Re5 Nc3 Re3 Qa6 Nc7 Bh7 a3+ Kb1 Bh6 Qg7 Bf4 Ng5 Bh2 Nce4 c3 Qdf8 c2+ Ka2 Rh3 Be3 c1Q Bd4 Qf4 Kb1 a2+ Kb2 Qg3 Rb1 a1N Qdd3 Nb3 Nf6 Nc5 Ng8 Qe5 Rd1 Na4+ Ka1 Bd7 Rg1 Be8 Rg3 Qec5 Rf3 Qc4 Rf4 Bg6 Qbe8 Q4c5 b8Q+ Q5b6 Qd7 Re3 Qdb5+ Ka3 Qdd8 Qbc5 Qd7 Nc8 e7 Qe5 e8B+ Qed6 Bf7 Rh3 Bd3 f1R Bb3 Re1 Bf1 Re8 Qdf5 Ra7 Qfd3 Na8 Be5 Rae7 Rb4 Qd8 Bd4 Qdc7 Re1 Q7d7 Re5 Qdc7 Rd5 Ree3
2N5/1r2B1nN/Nn6/KNr3q1/qN2p1b1/R1P2rnk/1b3QRB/2NBQ1B1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb4 g5 h4 d5 f4 e5 h6 d4 c3 g4 b6 a6 b7 e4 h7 g3 h5 d3 h6 d2 Na3 g2 Be2 Be7 Qe1 d1N Rh2 Bf8 Be3 Bg7 c6 Ra7 c7 Be6 c8N Nf2 Bd1 Qd2 Ne2 Nd7 b8N g1R Nc6 Rg3 Rg2 Nh1 Bg1 Kf7 f6 Kg6 f5+ Kh5 f7 Kg4 f8N Qf4 f6 Qe3 f7 Ngf6 Bh2 Rg8 h8B Qf4 h7 a5+ Ka4 Qe5 b4 Ne8 b5 Kh3 b6 Bh6 b7 R8g5 b8N Rf3 Na6 Rb7 Nb5 Qf5 Ncb4 Nb6+ Ka3 a4 Bf6 Rd3 h8B Ng3 Bd8 Re3 Be5 Ng7 Bd4 Qg6 Bc5 Bg4 Nh7 Rd5 Bd4 Rc5 f8Q Qh5 Qff1 Rf3 Be7 Be3 Ra2 Qg5 Ra1 Bd2 Bdg1 Bf4 Qff2 Bc1+ Ka2 a3 Kb3 Bb2 Nc1 Nd5 Ka4 a2 Ka5 Nb6 Rb1 Ba3 Rb2 a1Q Ra2 Bb2 Ra4 Qb1 Ra2 Qc2 Ra3 Qa4+
1Rn2bB1/B1N1B1bB/1N2r2R/B3Bp1q/4N1nP/1q3br1/1Q2Q3/1NKq2k1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Ke7 e4 a5 d4 g5 Kd2 c5 h6 f5 b6 a4 h7 a3 e6 Kd6 e5+ Ke7 b5 c4 d6+ Ke8 d7+ Ke7 d5 g4 b7 a2 b6 g3 Ne2 g2 Nec3 g1Q Qe2 Qc7 d8B+ Ke8 e7 Kd7 e8N Ra6 d6 Kc6 d7 Kc5 e6 Kd4 e7 Nf6 Bb2 Rg8 h8Q Ra7 Ne4+ c3+ Kc1 Qc5 Nc7 Rg3 e8B Qa3 Bg6 Nc6 b8N Bb7 Be7 Qb3 d8B Ra6 Nd7 Na7 Bh7 Nc8 h4 Ba8 b7 Re6 b8B Qf2 Rh3 Qf3 Nb6 Qh5 Ba7 Bc6 Bba3 c2 Bad6 Rg1 Rf3 Rg3 Rf4 Bd5 Rg4 Bc6 Rg6 Bd5 Rh6 Ba8 Qd1+ Ke3 Be5 Ng4 Bc4 Bd5 Qd2+ Kf3 Qe3+ Kg2 Qe2+ Kg1 Qf6 Ba8 Bd5 Rc6 Bdg8 Re6 Nbc3 Bb7 Rb1 a1B Qh8 Qa2 Rb5 Qb3 Nb1 Ba8 Nbd5+ Bd4 Rb8 Bb7 Nb6 Ba8 Nec3 Bf3 Ne4 Ba1 Bb4 Bd4 Bde7 Bc3 Ba5 Ba1 Bf4 Bag7 Be5 Qa3+ Kd2 Qb3 Bf4 Bb2 Qe5 Qa3 Q5b5 Bbg7 Be5 Qa4 Qb2 c1Q+ Kd3 Qcc4+ Kd2 Qd5+ Kc1 Qab3 B7d6 Qdd3 Be7 Qdd1+
3RN1N1/6q1/b1P1k1Bb/q3Bp1K/2NRn1Qq/2BB1R2/2n1rrB1/1N1R2b1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg3 f5 Kh4 d5 e4 a5 c4 d4 b4 a4 h6 g5+ Kh5 g4 h4 g3 h7 d3 c6 a3 e6 d2 c7 g2 b6 a2 c5 Ra3 b5 Rb3 c6 Qd5 e5 Ba6 c8B Qd8 b7 Qc7 b6 Nd7 b8B Bh6 b7 Bb5 Qg4 d1Q Rh3 Qb6 Bb2 Qd5 Bc3 Qa5 Nf3 g1B Bg2 Qd8 Nfd2 Bf1 Rf3 Rb4 Nc4 Ke8 e7 Kf7 e8N Nf8 e6+ Ke7 Bbe5 Bg7 b8R Q8a5 Ba6 Qd1 Rd8 Qda4 Rd4 Rb2 Bb5 Re2 Ba6 Nh6 Bb5 Rg8 h8N Nh7 Nf7 Ng5 Ba6 Ne4 Bb5 Rh8 Ba6 Ng8+ Nh6 Bf8 Ncd2 Rf2 Bd3 Q4b4 Nc4 Ngf6+ Kg6 Nd5 h5 Nd6 Kg5 Ne3 Kg6 Nc2 Ng8+ Kd8 h6 Rh7 Rdf4 Re7 h7 Bh6 h8R Ne4 Kh5 Be2 Nbd2 Qba4 Rd1 a1Q Nb1 Rb7 Ned6 Rb2 e7+ Kc7 e8B Kd8 Nf6 Ke7 Bg6 Ke6 Rd8 Q4b4 Nde8 Qe7 Be1 Q1a4 Bb4 Qg7 Ng8 Qe7 Bbc3 Na3 Qg5 Nd6 Ne3 Qg7 Bc2 Ba6 Bd3 Rbe2 Rg4 Qf4 Nc4 Nc2 Rh4 Qg3 Rd4 Ne4 Qg4 Qh4+
N4B1b/2n1q2N/2p1NP2/1B1nrr1n/BQ3qNR/4QK1B/3RB2b/1b3B1k w - - 0 1 illegal: No possible last move
5RN1/3b2p1/R1N2RNB/Bn1rRqqK/1r1nQP2/N1B2bqR/4Bk2/2b5 w - - 0 1 illegal: No possible last move
1N2rr2/1kBp2r1/6nQ/1q1q4/N1bPB3/N2N4/1R1RB1Qb/b1N1nKBN w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 b3 axb3 Qb6 b4 Qc7 b5 Qd8 d4 g5 c4 a5 h4 e5 f4 e4 h6 g4 h7 a4 h5 g3 c6 e3 b6 e2 h6 g2 b7 a3 f6 a2 f5 Ra5 c5 Ra7 c7 Bg7 f7+ Ke7 f8B+ Ke8 f6 Ra8 c6 Qe7 Rh2 Qe4 Na3 Ra6 Rb1 a1Q Bd6 Qd3 Be3 Ra7 Qc2 Ra8 Nh3 g1B Nf2 Ne7 f7+ Kf8 Nh1 Na6 b8N Bb7 c8N Qb2 c7 Qg6 Nb6 Bg2 c8B Qh5 Bc7 Nc5 Na4 Bd5 Bb7 Qb5 Rb2 Bc4 Be4 Rg8 h8N Qd5 h7 Ng6 Rf2 Ke7 f8Q+ Ke6 Nf7 Bh6 h8N Rg7 Ne5 Bh2 Nd3 Bg5 Nc1 Nd3+ Kd2 e1R Be2 Rf1 Nf7 Ne1 Ne5 Be7 Ned3 Bb4+ Kd1 Bc3 Qf4 Ke7 Qh6 Ke6 Rg2 Rf8 Bg1 Re8 Qcd2 Rf8 Qdg5 Re8 Rd2 Ba1 Rf2 Rf8 Qg2 Ke7 Be5 Kd8 Bc7+ Kc8 Rb2 Kb7 Kd2 Nc2 Kd1 Ne3+ Ke1 Nc2+ Kf1 Re8 B2f3 Ne1 Rfd2 Ra6 Be2 Rf6+ Qf4 Rff8 Qf6 Nf4 Qh6 Ng6+
rrR1R1N1/Bpq2R2/2P2bBN/1b1R1q2/1k2B3/5rBn/R4n1Q/K1Rn3Q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Kc3 Kd7 Kb2 Kc6 f4 e5 h4 g5 c4 d4 a4 e4 f6 e3 h6 g4 f7 g3 f5 d3 h5 d2 h7 e2 f6 e1Q h6 g2 a6 Bg4 a7 Qd3 a5 Qf2 a6 Qh3 Nf3 g1N Ra2 Be7 f8B Ne2 f7 Nf4 Nd4+ Kd7 c6+ Kd6 c5+ Kd5 c7 Qhg3 c8B Qd3 c6 Kc4 Bf5 Bc5 Be4 Bh5 Bd6 Nd5 f8R Ne3 Rf7 Qg3 Nf5 Qf2 Bg3 Nc2 Nc3 Qf4 Nd5 Ne3 Ka1 Bd6 Nf6 Ne7 Ng8 Kb4 Rg1 Qd5 Bfd3 Nd7 Qe1 Rb8 a8R Ng6 a7 Be7 Qf2 d1R Qh2 Bg4 Ra5 Qe6 Rd5 Rf1 Bb1 Nd1 Be3 Nf6 Rh1 Rf8 Re8 Rf3 a8R Qc7 Ra2 Nf4 Ba7 Nh3 Re1 Bh5 Rh1 Ng4 Re1 Nde3 Rc1 Bf6+ Rb2+ Ka4 Red8 Ngf2 Qh1 Qee5 Bec2+ Ka3 Nge7 Nf1 R8d6 Nf4 Re6 Rc3 Ra2+ Kb4 Bd3 Rhg8 h8R Bg6 h7 Ra8 Bbc2 Rgb8 Rc8 Ne3 h8Q Bh5 Ng8 Be2 Ree8 Ned1 Q8h2 N4h3 Nfh6 Qf4 Bg6 Qf5 Bb1 Bb5 Be4 Rf3+
1BN1B3/2r3Q1/R1np1n1Q/2Q4R/q1K1n2N/4Qn1P/n4r1k/Q2QbRRb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 b4 Ke5 c4 a5 f4+ Kf6 h6 e5 c6 g5 h7 g4 c5 a4 c7 e4+ Kc4 e3 c6 g3 h3 e2 b6 e1N b5 a3 b7 g2 b6 a2 Na3 Nh6 Nf3 g1N Nh4 Ng8 Nb5 Ng2 Nd6 Nf3 Rg1 Na6 b8Q Qe7 b7 Qd8 Qa7 Nb8 Qe3 Na6 b8R Nd4 Rb6 Nb4 Ra6 Bb7 c8R Qe8 c7 Ne1 Be2 Ndc6 Bh5 Ra7 Rd8 Nec2 c8Q N2d4 Rf1 Qe4 Be8 Bh6 Rb1 a1N Qc7 Bg5 Nc8 Na2 Qb6 Bh6 Qc5 Nab3 Bd2 Ba8 Ba5 d6 Bc7 Rb7 Bb8 Rc7 Rd7 Bb7 Rg7 Ba8 Rg5 Bg7 Rh5 Nf3+ Kb5 Nbd2 Rg1 Nge7 Ra1 Rf8 h8Q Qc2 Rc1 Ne4 Rb1 Qd2 Kc4 Qb4+ Kd3 Nfg5 Ng6 Nd2 Qde1 Nd8 Nh4 Bh1 Q1e2 Ng8 Rbf1 Nde4 Qd1 Qa3+ Kc4 Nc6 Nb6 Ke7 f6+ Ke6 f7 Bc3 Nc8 Be1 Qha1 Qa4+ Qb4 Bc3 f5+ Ke5 f6 Nge7 Qab1 Be1 Qbc1 Nd5 Qb1 Rh8 f8Q Rh6 f7 Rf6 Qh6 Rf2 f8Q Nf6 Qed4+ Kf4 Qba1 Rb7 Qfg7 Rc7 Ng2+ Kg3 Qe3+ Kh2 Nh4 Qa5 Qb5 Nf3 Qbc5 Qa4+
3nbQRr/b6k/rB2QnN1/3N4/1R1K2Nr/Nqn1Pp1Q/4B3/Nr2N2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Ke3 c5 h4 f5 d4 Kf7 b4 Kg7 d6 a5 d7 a4 b6 g4 b5 c4 e6 c3 d5 g3 d6 c2 b7 f4+ Kd4 a3 h6+ Kg6 h7 g2 b6 a2 h5+ Kg7 h6+ Kg6 e7 Nf6 e8Q+ Kf5 Rh4 Nd5 Na3 Nb4 Be3 c1N Nf3 g1R Ne1 Ra6 Qe6+ Kg5 Qdb3 Qc7 d8Q+ Be7 d7 Nbd3 Qf8 Rg2 d8N Nf2 Nc6 Nh1 Ne5 Rg3 Ng4 Rg8 h8N Bd7 h7 Bc6 Ng6 Rh3 h8Q Be8 Bg1 Rh2 Qh3 f3 Rb1 a1R Rb4 Nf2 Rh6 Nd7 b8N Rb1 b7 Nd1 Nc6 Na2 b8N Qb7 Na5 Nf6 Nd7 Ndc3 Nb3 Bd8 Qh7 Rh8 Nb6 Qf7 Nd5 Bb6+ Kc4 Qg8 Na1 Ba7 Bb6 Rh1 e3 Rh2 Rb2 Nb4 Be2 Nc6 Rb4 Nd8 Kd4 Qf7 Qg2 Qb7 Qh1 Rh4 Qhd7 Qc6 Rh7 Qa4 Rg7 Kh5 Qc7 Qc2 Qch2 Qb3 Qh3 Nce4 Nh2 Kh6 Rg8+ Kh7 Ng4 Nc3
1B2kNrr/3q1rR1/2bnN2b/N4r1B/R2Q3b/B1p1KPB1/R1RR4/N6n w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 h4 c5 d4 g5 b4 e5 b6 e4 d6 e3 d7+ Ke7 b5 g4 h6 g3 h5 c4 h7 a4 b7 c3 b6 a3 d5 a2 f6+ Kf7 h6 g2 d6 Ne7 Nd2 Ng6 Ba3 Rg8 h8R Qe8 d8R Ra7 h7 Nh4 d7 Nc6 b8B Qe4 b7 Ng6 Nc4 Nce7 Rh2 Qf4 Qd4 Qg3 Na5 Qc7 Nf3 g1R Ne1 Nf5 Nc2 Qc6 Bg3 Bh6 b8B Ne5 f3 Nd3 Bh3 Qb5 Bg4 Rh1 Rh4 Bb7 Bh5+ Rg6 Rc1 a1R Rhg8 Nd6 h8R Bc6 Rf4 Rb1 Na1 Rb4 Rc2 Nf2+ Nc4 Qf5 Na5 Rb5 Ra2 Rh3 Rg4 Nh1 Rg7+ Ke6 f7 Ke7 f8N+ Qf7 Rh4 Rf5 Kd3 e2 Rf4 e1B Ke3 Rh2 Rhg8 Rgg5 Rg4 Rb2 Rh4 Rbb7 Rhh2 Ra8 Rhc2 Rc7 Rc8 Rb7 d8N Ke8 Rc7 Rba7 Rd7 Rb7 Nde6 Rg4+ Bf4 Rg1 Rg4 Bh4 R8g7 Rc7 Rgg2 Rca7 Rgd2 Rg6 Rb7 Qd7 Rb4 Rc7 Ra4 Rb7 Rf7 Rg8 Rg7+ Rf7 Kd3 Rb5 Ke3 Rf5 Nh7 Rh8 Ba7 Rc8 Bb8 Ke7 Rh2 Qc7 Rhd2 Rcg8 Nhf8 Qb7 Nd8 Qd7 Nde6 Rg5 Bh2 Ke8 Bg3 Rf5+
4Q3/4rR2/bBbN1b1B/Nq2BB1R/B4p2/2PK2kB/r1QN1N2/1nbr3n w - - 0 1 illegal: No possible last move
2rBQbN1/bRN1B2B/4R1b1/1Q1Q4/1n1rP3/1K1B2nQ/3nnqp1/2B1k2B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 h4 Kf5 b4 Ke4 h6 d5 e6 a5 b6 f5 h7 g5 h5 d4+ Kb3 d3 c4 f4 c6 g4 c5 d2 c7 Ke3 c6 Kf2 b5 f3 e7 g3 e8Q Qh4 b7 Bh6 b6 Bf8 h6 Bd7 c8B Bh3 c7 Qe4 Na3 Bg2 Nb5 Ne7 Nh3+ Ke3 Rb1 f2 Bf5 Ra6 c8B Bf3 Nf4 Bh5 Ng6 Qe5 Nc7 Nbc6 b8Q Qc5 b7 Nb4 Rh4 Rg8 h8Q Rd6 h7 Rd4 Be4 Qa7 Bh1 g2 Bf5 Qc5 Be4 Nf5 Ne7 Bg6 Rh6 Ng3 Qb5 Qb6 Q8e8 Qf6 b8B a4+ Kc3 a3 Kb3 a2 Bd3 Rg7 Ng8+ Re7 Ba7 a1B Bc5 Re5 Be7 Rc5 Na8 Rc8 Nc7 Rd7 Be4 Bd4 Bd8 Ba7 Bf5+ Kd4 e4 Ke3 Bd3 f1N Qh5 Kf2 Qh3 Qg5 Qd4+ Qe3 h8B d1N Bhf6 Ke1 Bfe7 Nc3 Qdd5 Nce2 Rb2 Qf2 Rb1 Bf7 Re6 Bh5 Bh7 Bg6 Ra1 Rd6 Ra6 Rd7 Rab6 Rd6 Rb7 Rd7 Qdh5 Rd4 Qhd5 Nd2+
rrK1kN2/4b2R/2N5/B1q1rNpn/n1R4B/1R6/Rn2B1QP/N1Bb1nB1 w - - 0 1 illegal: No possible last move
k2rK3/4RQBB/3bR2B/bbB2P1n/rB1Nq1b1/2R3n1/N1Q2pr1/3R1B2 w - - 0 1 illegal: No proof kernel
N2r3r/1N2nnK1/1NB3nB/3prRP1/2RN3R/k1N3R1/1n1BQ2B/q1b4b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 d5 Kd3 Kd7 Kd4 h5 Ke5 a5 g4 h4 c4 h3 f4 a4 b4 e6 b6 Kc6 f6 h2 g6 a3 f7 a2 b5+ Kb7 f5 Na6 g7 Qd7 c6+ Kb8 c5 Rh4 f6 Nh6 g8R Qe8 b7 Ka7 b8N Nb4 c7 Qd7 c6 Kb6 Bd2 Kc5 b6 Ra5 b7 Ra8 Nf3 Bg7 f8R Nf7+ Kf4 Rh8 Bb5 Qe8 Nd4 Bh6+ Rg5 Bd7 c8N Qd8 c7 Nc6 Nc3 Kb4 Qe2 Nce5 Rae1 a1R Bc6 Ka3 Nb6 Ra2 c8N Ng6+ Ke3 e5 Nd6 e4 Rc1 Qe8 Na6 Bf5 b8B Qe5 Nb7 Ra1 Bc7 Rd8 Bb8 Ra2 Nc7 Ra1 Rc2 Rc1 Nca8 Re1 Rg1 h1N Rg3 Qc7 Rh3 Ng3 Rh4 Qe7 Bf4 Qb4 Rg8 Qb1 Rgh5 Qa1 Rc1 Nd6 f7 Bg5 f8B Bh6 Kf2 e3+ Kf3 Bd3 Be5 Nf5 Bh2 Nfe7 Rf5 Nf7 Bg7 Bf4 Bh6 Bc2 g5 Be4+ Kg4 Bh1 Kh5 Bg2 Re8 Bh1 Qd3 e2 Qc2 Nc8 Re3 Nce7 Qe4 Rd1 Rc2 e1N Rg3 Nd3 Qe2 Rb1 Rb2 Re1 Rb4 Nb2 Rc4 Rhf8 Qg2 Re5 Qe2 Nd6 Bg7 Be3 Kh6 Nf7+ Kh7 Bf4 Bh6 Rh8+ Kg7 Be3 Be1 Bc1 Bd2 Rhe8 Rff4 Rf8 Rf5 Rh8
Q1NB1Rb1/K2B2Bn/R4R1q/P4Qbr/n3BR1p/b3n1NR/k3r3/2b1R3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 a6 Kf7 Ke2 h5 Kd3 b5 Kd4 e6 a4 h4 f4 b4 g4 c6 a7 b3 a5 b2 g6+ Kf6 g5+ Ke7 Kc5 e5 d4 e4 g7 e3 d6+ Kd7 g6 e2 f6 Ke6 d5+ Kd7 f5 e1B f7 Bd2 f6 Rh5 Bg2 Rf5 Ne2 Be1 Bh6 Qe7 Kb6 c5 Ng3 c4 Qf3 c3 Rh3 c2 Na3 b1N Nc4 Kd8 d7 Nc3 Nd6 Rf4 Qe4 Bd2 Re1 Bb7 Qd3 Qe5 Bh1 Ne7 g8B Qg5 g7 Rf2 Qh7 Re2 Be4 Nf5 Qg6 Na6 Qh7 Rc8 a8Q c1B Ka7 Kc7 d8R Nb8 Re8 Bc6 Re6 Nd7 Qg6 Rd8 Nc8 Na4 Rd6 Bb7 Ra6 Bfa3 Bh7 Re8 g8R Nf8 d6+ Kd7 Qh5 Ke6 Rg6 Bd5 Bg7 Qh6 d7+ Ke5 d8B Kd4 Qf3 Kc4 Qf2 Kb3 Rg4 Nd4 Bhf5 Re5 Bd7 Rh5 Qf5 Bg5 Rf4 Nh7 f8R Nb6 f7 Nc2 Re8 Na4 Ree6 Ka2 f8R Ne3 Ref6 Bg8
N3N3/B2Bb2K/Q3r2B/PN2RN1n/2p1qn1r/2Nn1Q2/3N1B1k/bn2Rb2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 g5 f4 b5 d4 e5 a4 c5 h4 b4 a6 c4 f6 b3 a7 b2 h6 g4 f7 g3 f5 g2 h5 Na6 a5 Qc7 f6 Qc6 h7 Nb4 h6 Qc5 Qf3 Be7 f8N Na2 f7 Bd7 Be3 Bg5 Bf2 Qc8 Nd2 b1N Ne2 g1N Ng6 Be3 f8B+ Ne7 Bh3 Qd8 Nh4 Qc7 Nc3 Bc6 Bd7 Rg8 h8N Qc8 h7 Nh3 Bh6 Rg3 Re1 Ng6 Kf5 e4 Re2 Rb8 a8N Nc1 Kf6 Rb4 Kg7 Qb7 Re1 Rb6 Nf7+ Ke7 h8B Bg5 Ra2 e3 Nd6 e2 Ne8 Nd3 Kh7 Ngf4 d6+ Kf7 d5 Be7 Be5 Rg4 Nf5 Rh4 Bed4 Nh5 Ra3 Ra6 Ba7 Nh3f4 Rb3 Rb6 Rb5 Ra6 Bc8 Rb6 d7 Ra6 d6 Ke6 d8Q+ Bd7 Bac5 Ke5 Qb6 Qe4 Qa7 Bc6 d7 Bd5 d8N Re6 Qa6 Bb7 Rd1 e1B Bd7 Bc6 Nb7 Bd5 Bg3 Bf2 Rc1 Bd4 Nbd6 Bb7 Bf2 Bc6 Nd5 Ba1 Re1 Qe2 Ndb6 Nh3 Qh1 Bg2 Na4 Qe4 Nc3 Bf1 Qf3 Bg5 Qh1 Kf4 Ba7 Kg4 Rd5 Nh3f4 Ndb5 Be7 Re5 Rg6 Bg3 Re6 Qf3+ Kh3 Bgf2+ Kh2
1r2b1kN/P1rQ1b1n/RR6/6n1/Q2b1BRr/N2RN1p1/b2KB1N1/q4RR1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 f5 h4 Kf7 d4 c5 a4 g5 e6+ Kg7 a6 b5 a7 c4 h6+ Kh7 e7 f4 e8Q b4 e5 c3 a5 b3 d6 c2 e6 f3 e7 f2+ Kd2 b2 h5 g4 d7 g3 a6 Bb7 d5 Nf6 d6 Qc8 d8R Rg8 d7 Rg4 Nh3 Bg7 Be2 f1B Rg1 Rg6 Nf4 Be4 Na3 b1B Ng2 Ng8 Qf7 Qc5 e8N Qb6 Nd6 Bf3 Ndc4 Nc6 Nce3 Nd4 Rb8 Rg4 d8R Rh4 Qd7 Qf6 Rb6 Rb8 a8R Ne6 a7 Kh8 h7 Ba2 Qa4 Qe5 Rd3 Ng5 Rab1 Qa1 R1b4 Rh1 Rg4 Bd4 Ra6 Kg7 h8N Nf6 h6+ Kg8 Rb6 Rh4 h7+ Kg7 Ra6 Bfd5 Rb6 Bf7 Ra6 Rc8 Rb8 Be8 Rbb6 Rb8 Ng6 Kf7 h8R Nfh7 Rf8+ Kg7 Rff4 Kg8 Nh8 Baf7 Ne1 Bg2 Rff1 Bgd5 N1g2 Ba2 Bb2 Bf6 Be5 c1R Bf4 Rc7 Qd7 Be5 Q1a4 Bd4
2N3r1/B4RBR/4kbrQ/r2q1bRq/1r1pBRRn/NPK4n/2R5/4QB2 w - - 0 1 illegal: No possible last move
qNR2N2/3n1B2/Qb2p2N/1bR2qNq/K1NQ4/4nr2/1Nr3Pk/Bq1RR3 w - - 0 1 illegal: No possible last move
2b3rB/Q3b1QK/1PB1q1BR/N2p3b/3n1n2/1B3k2/QBB1b1qr/5NQR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 b4 a5 g4 a4 c4 d6 c6 f6 g6 a3 g5 h4 g7 h3 c5 a2 g6 h2 c7 Na6 c6 Rb8 b6 Ne7 b5 Ra8 b7 Ng8 b8B Rh7 b6 Rh6 Bb2 Rh3 Na3 Rh6 Nf3 Bd7 c8B Be7 c7 Rh7 Nd2 Nh6 g8Q+ Nf7 g7 Qf8 Nac4 Bd8 Na5 Ke7 e6 Ne5 Kf5 Qf7 e4 Nd3 e5 Nf4 Bd3 Nc5 Qg1 Nb3 Bc2 Be8 Rc1 a1Q Nf1 Qa2 Bb7 Bd7 Bc6 Bc8 Qh8 Rh6 g8Q d5 Q8g2 Qe8 Qhg7+ Qf7 Re1 Rh3 Re3 Rh7 Rh3 Nd4+ Kg4 f5+ Kg5 Rh8 Rh4 Rg8 Kh6 Ra7 Kh7 Ra8 Nc4 Ra3 Na5 Rh3 Rh6 Rh4 Ba1 Rh5 Bb3 Qc2 Qe2 Qe4 Qa6 Qg2 Qa7 Rh4 Qf2 Rh3 Qa2 Rh4 Bb2 Rh5 Rg1 h1B Bc2 Rh4 B6a4 Rh2 Bab3 Ke8 e7 Kd7 e6+ Kd6 e8B Be7 Bc6 Qf6 Bba4 Ke5 Bcb3 Ke4 Bc2+ Kf3 Bab3 Bb4 e7 Qe6 e8B Be7 Bg6 Nd3 Qa4 f4 Qc4 Kg4 Qc5 f3 Qa3 f2 Qa2 Bd7 c8Q Kf3 Be5 Nf4 Qcc7 Bc8 Qd8 Bc5 Qg5 Be7 Ng3 f1B Bf6 Bb5 Nf1 Be2 Be5 Qg3 Bf6 Bg2 Rh1 Bh3 Be5 Qf2 Qg1 Bg4 Qf7 Qg2 Bh8 Bh5 Qf8 Nf5 Qg7 Nd4
BNb2RN1/2kPn1q1/1pr4b/4NR2/B1N1QQN1/qn2K1r1/rB6/2r3NB w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 a4 c5 f4 e5 h4 g5 d4 e4 h6 g4 f6 g3 d6 b6 f5 c4 d5 e3 h7 c3 a6 c2 h5 g2 a5 Qc7 a7 Qc3 a6 Bh6 f7 Qa5 f8N+ Kd8 f6 Nd7 f7 Qa2 Qe1 Qa3 Ng6 Ne7 Bb2 c1R Ne5 Qb4 Ra5 Rd1 Ng4 Qc5 Na3 Rf8 h8N Qb5+ Nc4 Qc6 Ng6 Ra1 N6e5 Nf6 d7 Bf4 h6 Ng6 h7 Rb8 a8B Nh4 h8N Ng8 a7 Ra3 Nhg6 Bh6 Ne7 Kc7 d8N Qa4 Ndc6 Ra2 Rh2 Rd8 f8Q Rd6 Qf4 Qa3 Rh3 Rg6 Rf3 Nf5 Qb4 Rb7 Nb8 Rd6 Rf2 Rc6 Kf3 e2+ Ke4 Kd8 d6 e1R+ Be2 Rf1 Bd1 Nd4 Ba4 Nb3 Ke3 Rc1 d7 Rbc7 Rf3 Rg6 Be4 Rcc6 a8B Kc7 Qe1 Nf6 Ng8 Nd5+ Ke2 Ne7 Ke3 Rc2 Qb1 Rc1 Rf2 Rg7 Bf3 Rg5 Qbe4 Rgg6 Nh3 g1Q Bh1 Qh2 Ng1 Qg2 Qg5 Rg7 Rf8 Rgg6 Qgf4 Rg7 Nf2 Qg5 Rb5 Qf6 Rd5 Rg2 Nfg4 Qg7 Rd6 Qh7 Rdf6 Qg7 Rf5 Rg3+
qQ3R2/1QP1N2k/RB4Nn/6r1/q1bq4/1B1Q1p2/R2QR1qR/1K1nb1Rr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 h4 d5 e4 f5 b4 Kf7 c4 Kg7 Kc2 a5 c6 d4 c5 f4 b6 f3 h6+ Kg6 e6 a4 h7 a3 e5 g4 c7 g3 c6 g2 h5+ Kg7 h6+ Kg6 b5 a2 b7 Qg5 b6 Na6 b8Q Qg3 e7 Bd7 e8R Qf2+ Ne2 g1Q c8Q Ba3 e6 Qfg3 c7 Q1f2 b7 Bb2 e7 Qe1 Rf8 Bh3 e8R Bg2 Qd2 Ba3 Nbc3 Bh3 Qd7 Nc5 Rg1 Ne4 Nd5 Nc3 Qd3+ Bf5 Be3 Qg2 Qbc8 Qf2 b8Q Bc1 Qcb7 Nd1 Re7 Bd2 Nef4+ Kg5 Be2 Be6 Ng6+ Kh5 Ree8 Ra5 Nde7 Be1 Qd2 Rf5 Bc4 Rg5 Bb3 d3+ Kc1 Bc4 Bb6 Qe3 Rf6 Qd4 Re6 Nf6 Rf8 Ng4 Re2 Rg8 h8R Rg7 h7 Kh6 Rb1 a1Q Rhg8 Qa6 h8R+ Rh7 Rb2 Qa5 Rf6 Qa8 Rgf8 Kg7 Rfe6 Rh1 Rh2 Nh6 Kb1 Kh7 Ref6 Qd5 Ra2 Qd4 Qc3 d2 Qf5 Ne3 Qfd3 d1Q+ Qc1 Qd2 Re6 Qb4 Qcd2 Qba4 Ba5 Qc3 Ra6 Nd1 Bb6 Qd4
2RN2Q1/1b1nn1R1/2Rpr1Q1/nk6/4qB1K/q1RPRBbR/QbQ1N3/7q w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 c4 b3 axb3 Bb7 b4 Ba6 b5 Bc8 b4 a5 c5 a4 c6 Rh6 b6 Ra7 b5 Rb7 cxb7 Rh8 f4 e5 Kf2 g5 Kg3 c5 h4 e4 f6 d6 f7+ Kd7 f5 e3 h6 g4 f6 e2 d3 e1N h7 a3 h5 a2 h6 c4 Qc2 c3 Nd2 Nf3 Rh3 Qe7 Be2 Qd8 Nc4 Na6 b8R Ne7 b7 Qe8 b6 Kc6 Ne5+ Kb5 Bf4 Ng5 Nc6 Rg8 h8R Nc5 h7 Na6 Kh4 g3 Re1 a1B Bf3 g2 Ne2 g1Q Nd8 Bh6 f8Q Be6 f7 Ne4 Qg7 Qh1 f8Q Nac5 Qg6 Bb2 Qff7 Bd5 Rc8 Nf6 b8R Nb3 b7 Nd7 Rc6 Na5 Rbc8 Rf8 Qfe6 Rf6 Rg8 Bg7 Qef7 Re6 h8Q Be5 Rg7 Be4 Qhg8 Bd5 Qb1 c2 Qa2 c1Q b8R+ Nb6 Rc3 Bb7 R8c6 Nd7 Rbc8 Qa1 Qb1 Qa4 Qc2 Qa3 Bg5 Bh2 Bf4 Re5 Qa2 Re6 Qg1 Qg6 Qg4 Qe4 Qg6 Nc4 Ng1 Na5 Re3 Qg2 Ne2 Qf1 Q8f7 Qh1 Qg8 Bg3+
2RN3N/2q1Bp2/Nb2bR2/3knR2/2r1n1Nq/1n5Q/RRq1BP1Q/1R4Kb w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 d6 Bg4 axb3 Na6 b4 Bc8 b5 Nb8 d4 Kd7 e5 Ke6 d5+ Kf5 d7 a5 Qd4 Ra6 Qd1 Rd6 exd6 Kg6 g4 c5 b4 e5 b6 h5 b5 c4 b7 h4 b6 h3 Ra2 h2 Qb3 e4 Nh3 c3 Na3 c2 Be2 a4 Kf1 e3 Nb5 a3 Nf4+ Kg7 g6 Kf6 g5+ Ke5 g7 Ke4 g6 Be7 Nc7 Bh4 Na6 Qc7 d8N Nd7 b8R Qc3 b7 Nf8 d7 Kd4 d6 Nh6 g8N Ke4 g7 Ng4 Nh6 Nh7 g8R Qc7 Rg5 Ne5 Ng6 Nf6 Ng4 Kd4 Qe6 Ne4 Rf5 Bg3 Kg2 Rh4 Nh8 Bf4 Bd2 c1Q Bb4 Q1c2 Rb1 h1B+ Kg1 Bh6 Rf6 Bg5 Qf5 Kd5 Qf3 Bh6 Qh3 Bf4 Ne6 Bh6 d8R Bf8 d7 Bc5 Rf8 Bb6 d8R+ Bd7 Rde8 Bc8 Nd8 Be6 Bd1 e2 Be7 e1N Bf3 N1d3 Be2 Nc1 Rc8 Nb3 b8Q Nc6 Rab2 a2 Rg8 a1Q Rg5+ Ne5 Rgf5 Qa7 Ra2 Qd4 Rbb2 Qcd2 Rc1 Qc7 Rcb1 Qa4 Qc8 Qf4 Qh2 Qc2 Qc3 Qc4 Qch3 Qc7 Nb7 Qh6 Rc8 Qh7 Nd8 Qh5 Nh6 Rf4 Ng4 Qh4 Rb8 Nd6 Ra8 Rc4 Rc8 Ne4
BQN1bN1N/2Rnn3/1Bn3Q1/1bbrp2q/2N1Q2K/1k6/2n1PN2/R3nQN1 w - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 Kf2 Kd7 Kg3 Kd6 b4 h5 d4 f5 b6 c5 b5 e5 b7 a4 b6 a3 Kh4 a2 Bg2 f4 Nd2 f3 Qf1 f2 Nc4+ Ke7 d6+ Ke6 d7 Qe7 d8Q Qe8 Be3 Nc6 b8Q Nge7 g8N Ba6 g7 Bb5 b7 Qg6 Rc1 a1N Nh6 Nc2 g8N Ne1 Ng4 Qf7 g6 Qh7 Kh3 h4 g7 Qh5 Qa8 Rh6 b8N Rh8 Nd7 Rh7 Na5 c4 Qdb8 c3 Nc4 c2 Ra1 c1N d5+ Kf5 d6 Ke6 Bc5 Nb3 Bb6 Nc5 Ra7 Rh6 Rc7 Rf6 Qa4 Rf4 Qc2 Rd4 Qe4 Rd2 Ndf6 Rd5 d7 Nf5 Nh7 Nfe7 d8Q Nd7 Qe8 Nd8 N8h6 Nc6 Na5 Kd6 Nf7+ Ke6 Nh8 Kd6 Kh2 h3 Kg3 h2 g8N Ke6 Nh3 Kd6 Nc4+ Ke6 Rg1 h1B Bf3 Bh6 Bg2 Be3 Bf3 Bg2 Rh1 Bc5 Ng1 Qf7 Kh4 Bh3 Qg2 f1N Nf2 Ne3 Qf1 Qf5 Qh5 N3c2 Qg5 Bg4 Qg7 Bh5 Qgg4 Nc8 Ne7 Be8 Qgg2 N8a7 Nc8 Ne7 Qg5 Qf7 Qc1 Nac6 Qb1 Rd2 Bg2 Qf3 Qg6+ Kd5 Nf8 Kd4 Qe4+ Kc3 Qg6 Ne3 Qbe4 N3c2 Bh3 Rd6 Be6 Kb3 Bd5 Na7 Bc6 Rd5 Ba8 Nac6 Qfg2 Kb4 Ngh3 Nd3 Ra1 Nde1 Ng1 Kb3 Qf1 Qh5+
3brQq1/bk3bBb/1NNq2B1/1R2Q1p1/1n1N1NP1/n5N1/4K1n1/1QQ3RN w - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 g5 exf5 Qd7 h4 Ra6 h5 Rg6 hxg6 Qd8 f4 Kd7 d4 e5 b4 h5 g4 c5 d6 c4 b6 Kc6 d5+ Kb7 g7 c3 d7 h4 d6 a4 f6 c2 b5 a3 f5 a2 f7 h3 f6 h2 Nf3 e4 Nbd2 e3 Nd4 e2 Ne4 Na6 Rb1 a1N Nf2 Rh3 Rg1 h1B Bb2 Nh6 g8N c1B Ne7 Nc7 Nef5 Bf4 Qc1 Rf3 Ng3 Bg2 Nfh1 Ka8 b7+ Ka7 b6+ Ka6 b8Q Nb5 b7 Nf5 Bc3 Be7 f8Q Re3 f7 Na3 Rb5 N1c2+ Kf2 Qc7 d8N Be4 d7 Qd6 N8c6 Nb4 d8N Nh4 N8e6 Ng2 Ba1 Be5 Nf4 Bd8 Qh8 Bd5 f8Q Bf7 Qh7 Bh8 Qhb1 Re8 Kf3 e1Q Bd3 Bd7 Bg6 Qee6 Bc3 Be5 Ke2 Qed5 Qc7 Bf5 Qce7 Bf6 Qe5 Bb6 b8N+ Kb7 Nd7 Bd8 Ra5 Ba7 Nb6 Be4 Rb5 Qb3 Bh5 Bh7 Bg6 Qbe6 Qee4 Nac2 Ndf5 Bfg8 Bg7 Na3 Nfd4 Qb3 Qf6 Qf7 Qee5 Qff8 Qff5 Be6 Qff6 Qg8 Qf8 Bf7
Rn2Qb2/B4RNr/3RbB2/2BQ4/N2rpkbp/1RR5/2K1q1PR/3B1nn1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 b4 h5 c4 a5 f4 d5 f6 Ke6 c6 Kf5 c7 e5 b6 e4 b5 h4 b7 d4 g6 d3 f7 a4 g7 a3 c5 a2 b6 Ra7 c6 Be7 f8R+ Nf6 g8Q Qe8 Rf7 Bd7 c8R Bd8 c7 Ra5 Rh2 Qe7 Qe8 Rh6 Nh3 Bb5 Be2 Nc6 b8R Bc4 b7 Rh8 Nc3 Ra7 Bb2 Nd4 Na4 Qd6 Ng5 Qa6 Ne6 Be7 Rd8 Bf8 c8R Rh7 Rd6 Nf3+ Kc1 d2+ Kc2 Kg4 f5 Nd7 Ng7 Be6 f6 Kf4 Rc3 Ng1 Ra8 Qb5 Rb1 Nb8 Ba1 Ra6 Rbb3 Rb6 Bg4 Qe2 Bf3 Rb4 Bg4 Nc6 b8B Rd4 Ba7 Nb8 Rfb7 Qe1 f7 Qe2 Bb2 Be7 f8B a1N+ Kb1 Nc2 Bh5 Bf6 Rf7 Ne3 Be7 Nf1 Kc2 Bf5 Bf8 Bg5 Be7 Bh6 Bf6 Be6 Ba3 Nc6 B3c5 Nb8 Nf5 Bf8 Ng7 Qg4 Qe2 Qf3 Qc4 Qe2 Qd5 d1B+ Kb1 Qe1 Kc1 Bdg4+ Kc2 Bh3 Be2 Bhg4 Bd1 Qe2+
rb1N2r1/n6N/4Q3/1Q1P1QNb/pRq4K/3pRNr1/n1B2b1Q/k3N1BN w - - 0 1 illegal: No proof kernel
1kBr2n1/R1R1Nq2/K1BB2BQ/bbP2r2/8/pR5R/1npNN3/1bR2rN1 w - - 0 1 illegal: No possible last move, all moves rejected
7q/2R4B/Qn1nRBb1/bQRBbp2/rP2pq2/2BBN1R1/3B1kr1/2N4K w - - 0 1 illegal: No proof kernel
1rB4R/1n2r3/qB2R2B/NkBp2BQ/1qNp3n/qP1N1Kb1/8/RN2Rb2 w - - 0 1 illegal: Other
4B1B1/b1kB1B1K/4b2P/4RN1b/4Rnr1/RR2qq2/B1r2npp/B1QQ2N1 w - - 0 1 illegal: No proof kernel
Q2BQ1b1/1Q3Q2/1q2BR1P/3q2nN/1N1Q3B/K3q1r1/pbpn2RQ/krB5 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 h5 cxd5 b5 g4 b4 gxh5 b3 axb3 Rh6 b4 Rh7 b5 Rh8 e4 Kd7 d4 c5 Kd2 f5 Kc3 g5 Kb3 a5 h4 a4+ Ka3 f4 b4 g4 d6 Ke6 d7 f3 b6 f2 b5 g3 b7 g2 d5+ Kf7 h6 c4+ d6 Ke6 h5 c3 b6 c2 h7 Na6 b8Q Nb4 b7 Qe8 d8B Nd5 h6 Qf7 Bc4 f1Q Bh4 Q7f6 Rh2 Bg7 d7 Q1f5 Nh3 g1Q d8B Qe3+ Nc3 Ra6 Qh5 Rb6 Qa8 Rb1 b8Q Ba6 Bb3 Bc4 Na2 Nc3 Nb4 Q6g6 Qe2 Nf6 Rg2 Rg8 h8Q Nh7 Qbb7 Ng5 Qf2 Qff7 Qg3 Qd7 Qh2 Qd5 Ba2 Rf8 Bb3 Rf3 Ba2 Rg3 Bb3 Qf7 Ba2 Qc7 Nf4+ Kf7 Nh5 Ke6 Qaa7 Bb3 Qd4 Qb6 Qf8 Ne2 Qf1 Ng1 Qfa6 N1f3 Qba8 Kd7 e6+ Kd6 e7 Nd2 e5+ Ke6 e8Q+ Kf5 Qc3 Ke4 e6 Bf6 Qb2 Bc3 e7 Kd4 Q6c8 Qdf3 Qab7 Bg8 Qf7 Qd5 e8Q Qee6 Bc4 Qe3 Ka2 a3 Qca8 Nf1 Kb3 a2 Ka3 Nd2 Bb3 Qdc6 Be6 Qd5 Qbe7 Kc4 Qeb7 Bf6+ Ka4 Bh8 Qe5 Rb3 Ba3 Bg7 Rf1 Rb1 Qe4+ Kc3 Bc1 Ndf3 Bd2+ Kb2 Bc1+ Ka1 Qef4 Bb2 Qd4 Nd2 Rf6 Bc3 Ka3 Bb2+
3nQ2q/b2BBQ2/K1n1p1B1/2p3r1/2P1NB1R/1QRr1b2/B3krq1/2QNB3 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Be6 fxg5 Bc8 h4 Bb7 g4 Bh6 g6 Bc8 h5 Na6 g5 Bf8 g7 Nb8 Nc3 Qd6 Nb1 Qg6 hxg6 Bf5 Qh5 Bd7 Qd1 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 b4 a5 b6 c5 Kb5 f5 d6 h5 b7 a4 d5 h4 d7 h3 d8Q f4 d6 a3 d7 a2 Nd2+ Ke3 Qe8 h2 d8B f3 Bd3 f2 Ne4+ Kd4 Bd2 f1R Ne2+ Ke5 Qc1 Nd7 b8B+ Kf5 N2c3 Kg4 Be1 Kf3 Nd1 Rh5 Bf4 Nh6 g8Q Ne5 g7 Rf2 g6 Nc6 Qgf7 Ne5 g8B Ra6 g7 Ra3 Bh7 Bg4 g8B Rc3 Bf5 Rg5 Ka6 Nc6 b5 Bg7 b6 Be5 b7 Bb8 Rb1 Ba7 Rb3 a1Q+ Ra3 Rb3 b8Q Qh8 Bd7 Rc3 Qbb3 e6 Bc4 Rd3 Be7 Ke2 Bh7 Bf3 Bg6 Rg4 Qc3 Rg5 Ba2 Ne5 Qb3 Nc6 Rf1 h1Q c4 Qg2 Rh1 Ng4 Rh4 Nge5 Qb4 Nd8 Rc3 Nec6 Qb6 Re5 Qb3 Rg5
2r1Q1RB/3R4/BB1p4/5KR1/2QB2bB/1nnPRbbr/2p1B1qq/N1k4N w - - 0 1 legal: proof: h4 g5 hxg5 f5 b4 b5 e4 c6 exf5 Bb7 c4 Bh6 a4 Kf8 a5 Qb6 a6 Bg7 cxb5 Be5 Rh6 Ke8 Rh5 Qc7 b6 Bc8 b5 Qb7 axb7 Bg7 Rh1 Bf8 Ke2 Kf7 Ke3 e5 Ke4 a5 g4 h5 f4 h4 f6 Ke6 f5+ Kd6 g6 Kc5 f7 Kb4 g7 c5 f6 a4 g5 d6 d3 c4 g6 a3 Qa4+ Kc5 Nd2 c3 Ne2 h3 Bb2 a2 Re1 a1Q Ng3 c2 Rg1 h2 Nh1 Be7 f8Q Na6 b8B Qc1 f7 Nc7 b7 Ne6 b6 Rh6 Ba7 Bh4 b8B Ne7 g8B Nd5 g7 Nd4 Qfe8 Bg4 Bc7 Rc8 f8B Rh5 Qa6 Kb4 Nb3 Qh6 Na1 Nb3 b7 Be2 Rg6 Bg3 Be7 Rh4+ Kf5 e4 Bg1 e3 Bb6 Bf3 b8R e2 Be5 Nc3 Rb7 Qd2 Bf7 Rh3 g8R Bh5 Qab5+ Ka3 Bh8 Kb2 Bgd4 Bf2 Bc4 Bg3 Rd1 e1Q Bh4 Qe7 Rg5 Qee2 Re1 Qf2+ Ke6 Qf3 Re3 Kc1 Rd7 Qdf2 Be2 Qg1 Nf2 h1B Qa6 Qb7 Kf5 Qh2 Qa4 Qc6 Ba6 Bg2 Nh1 Qf3+ Ke6 Qf1 Qb5 Bgf3 Qc4 Qfg2 Kf5 Bhg4+
R2RR3/1BbPB3/3Nb2b/q1Nn3Q/1rr1n1NB/1Rp4p/k3B2K/3RN1q1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb4 d6 e5 f6 c5 f7 h5 f5 a5 f6 a4 d5 a3 d7 a2 b6 e4 b7 h4+ Kh2 e3 g4 c4 d6 h3 g6 e2 g5 e1Q g7 c3 g6 Qc7 d8R Qh4 Be2 Rh5 Bg5 Qa5 d7 Qe4 Nd2 Nc6 b8R+ Qb5 Ngf3 Qe3 Ne1 Qbb6 Nc4 Ra6 Bh4 Qe6 Nd6 Nh6 g8N Qd5 g7 Nf5 Nh6 Nce7 g8B Ng3 Ng4 Bh6 f8B Bb7 f7 Ra4 b3 Ka3 b4 Rg5 b5 Rb4 Ra8+ Ba6 Rb1 a1B Rb3+ Ka2 Bh7 Qbd4 b6 Ne4 b7 Qa5 b8N Bc4 Na6 Nd5 Be7 Bb2 f8R Bc1 Rfe8 Rh5 Nc5 Bcf4+ Bg3 Rh4 Bg8 Ndf6 Bd5 Qe3 Bb7 Be6 Qd5 Qc1 Qh5 Nd5 Ng2 Qe3 Rd1 Qd4 Ne1 Qg7 Nf5 Bc7 Nd6 Qd4 Ne3 Nd2 Bf2 Qg7 Bg3 Rhc4 Bgh4 Qd4 Ng4 Ne4 Bg3 Qe3 Bgh4 Qg1+
nk1BB1rN/2p3q1/RPBp2BB/2r2KQ1/b3Q1NQ/1Rb4q/1B2n3/4Qn2 w - - 0 1 illegal: No proof kernel
1nNqNR1b/2B1R1pr/4P2N/3N3N/6b1/1BK1b2k/p2NrBnB/2QQ1b2 w - - 0 1 illegal: Other
1r6/1R4Nq/BB1RN2k/q1RbN2r/nQ2Bnp1/p1q5/1r1N1KPB/N6R w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 g4 c4 Bh6 cxd5 Bg5 hxg5 Ba6 Be2 Bb7 Bf1 Bc8 d4 Kf8 b4 Kg7 f4 e5 b6 c5 f6+ Kg6 b7 a5 d6 h5 f7 c4 f8N+ Kg7 d7 h4 b5 c3 f5 e4 b6 a4 d5 a3 f6+ Kf7 d6 h3 Bf4 e3 Qa4 c2 Ne6 Kg6 f7 h2 f8N+ Kh5 g6 e2 g7 c1R+ Kf2 Nf6 g8B Ra5 Nd2 Rc3 Ngf3 Qc7 d8R Ra7 d7 Rc4 Nfd4 Ne8 Rc1 Rc3 Nc2 Nf6 Na1 Nd5 Qb4 Rc5 Bh7 Na6 b8R Bb7 Be4 Qc6 Be3 Nf4 Ng7+ Kh6 Nfe6 Rh5 Rc5 Qb5 Bd4 Bd5 b7 Qa5 Be5 Rf8 Bc7 Ra8 Bb6 Rf6 Rdc8 Rg6 d8N Rgg5 R5c6 Nc5 Rd6 Na4 Nc6 Rf5 Rc7 Re5 Rbc8 Rb8 Rf7 Ref5 Ne5 Rf6 Rc5 Rff5 Ke3 e1Q+ Be2 Qc1 Kf2 Qc3 Ba6 Rfg5 Rc1 h1Q Re7 Rh8 b8B Qhh3 B8c7 Rb8 Rh1 Qhd3 Bd8 Rf5 Rb7 Qb1 Bh4 Rf7 Bg3 Rd7 Bf3 Qh7 Bh2 Rf7 Be4 Rc7 Rb5 Rc4 Rc5 Rd4 Qb3 Rb4 Qc4 Rb3 Qb4 Rb2
Q1b4b/1bpnQ1BB/1RP1Bb1B/1r4Q1/1NR1Q2q/1B1p4/nkN2K1n/5B2 w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 g5 fxg5 e4 h4 e3 g6 Ne7 dxe3 Nbc6 e4 Nb8 e5 Ng8 g4 a5 g5 Bc5 h5 Ra6 g7 Rg6 hxg6 Bf8 b4 Ke7 e4 Ke6 c4 d5 b6 f5 c5 h5 c6 d4 b5 h4 b7 d3 b6 a4 Kf2 a3 Qg4 h3 Nf3 a2 Nc3 h2 Rb1 a1B Na2 Nf6 g8B+ Ke7 g7 f4 e6 Kd6 e5+ Kc5 g6 Kc4 e7+ Qd5 e8Q Rh7 e6 Bd7 e7 Rh3 Bh7 Qh5 g8B+ Be6 g7 Nbd7 b8Q Nd5 b7 Bf6 Nd4 f3 Rb6 Nb4 Nc2+ Kb3 Bh6 Kb2 Qa8 Qh4+ Qg3 Bc4 b8B Ba6 Bb3 Bb7 g8B B8g7 Bge6 Bh8 Rg1 h1B Ba7 Bg2 Rh1 Qe4 Qg5 Rh5 Rh4 Bh3 Qf7 Qf4 e8Q Bf5 Qfe7 Qh2+ Ke3 f2 Rc4 Qh4 Qeg6 Bh3 Qe4 Bg4 Nc3 Na2 Nd5 Bf5 Ndb4 Bh3 Bg2 f1N+ Kf3 Qg4+ Kf2 Nh2 Bf1 Nc1 Qgg6 Rb5 Qg5 Na2 Ra6 Bc3 Bd4 Qh5 Bdg7 Bf6 Rb6 Qh4+ Kg1 Nb8 Beg8 Bd7 Be6 Bdc8 Kg2 Nd7 Kg1 Qh3 Kf2 Qh4+
n1n2nBk/2BB2p1/Q1B2pR1/2K1N3/R2BQPrB/2Qn1NQ1/2bb4/5r1n w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 d5 dxc5 d4 a4 Qd5 axb5 Nf6 exd5 Ng8 Ke2 a5 Kd3 e5 Kc4 e4 h4 d3 b4 e3 h6 d2 h7 e2 d6 e1N b6 a4 b5 a3 c6 a2 h5 Bh3 d7+ Ke7 d8B+ Ke6 c7 Ra7 c8B+ Nd7 h6 Ba3 b7 Bb4 b8Q Ra6 b6 Bc5 b7 Bd6 Na3 Bg2 Qg4+ Ke5 Bh4 d1N Be3 Bc7 Bd4+ Kd6 Qe4 f6 Nf3 Nc5 Rg1 Ra5 Bd7 Ned3 Bc6 Bh1 Rg6 Ne7 c3 Rd8 h8Q Na4 h7 Rf5 Be2 Rd7 Qhc8 Rf4 h8Q Nb6+ Kb5 Rg4 c4 Na8 Qa7 Bd8 Qa6 Ba5 b8B+ Rc7 Qh5 Bd2 Qg5 Bg2 Nb1 Bh3 Ne5 Bf1 f4 N1f2 Bd1 Nh1 Bb3 Be2 Bdf2 Bd1 Bd4 Rg2 Qh3 Nc8 c5+ Ke7 Bg8 Kf8 Qgg3 Bc2 Kc4 Rb7 Bc7 Rg1 Kd5 Rf1 Kc4 Rb2 Kd5 Ne1 Qc3 Nd3 Qg3 Rb5 Na3 Rbb1 Nac4 Rg1 Nf3 Rbf1 Nce5 Rg2 Rb1 a1N Rb4 Nb3 Ra4 Rgg1 Bd7 Rg2 c6 Nbc5 Kc4 Ne6 Be8 Nb2+ Kb4 Ng5 Kc5 Nh7 Ba5 Rgg1 c7 Rg2 Bc6 Rgg1 Be6 Rg2 Bed7 Kg8 Be6+ Kh8 Bg8 Nf8 Bb6 Na7 c8B Rgg1 Bh3 Nc8 Bc7 Rg2 Bhd7 Rgg1 Qf2 Rg4 Qg3 Nd3+
R1Nn2Kr/B1NP4/3QnkB1/p3NpNq/R1BRp2N/2b5/1B1r1b2/R4b2 w - - 0 1 illegal: No proof kernel
1R4Qq/R2Pp1r1/1n1N2N1/2Nb1RbQ/K3n3/1B1r3n/p1N1p1R1/1N2BN1k w - - 0 1 illegal: Other
R2b3B/2rbRp2/1N1k1B1r/1pN4N/BnR4r/RPb2p2/5Q1q/1N2BB1K w - - 0 1 illegal: Other
1b2RB1B/N4R2/2N1rp2/1RK2Q1p/Rb3qBP/4R3/bQp1nq2/B2kn1R1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 b5 fxe5 a5 a4 f6 axb5 Qe7 g4 Kd7 g5 Qd8 g6 Ra6 Qb3 Re6 Qc2 Re7 Qd1 Rf7 gxf7 Bb7 Ra2 Ba6 Ra1 Bc8 Kf2 c5 Ke3 g5 b4 h5 h4 a4 d4 c4 e6+ Kd6 e7 a3 e8R a2 b6 c3 b5 c2 b7 g4 b6 g3 Qd3 g2 Bb2 Nc6 b8Q+ Qc7 b7 Ne5 Nf3 Bd7 Nc3 Be6 Rg1 Bg4 Nb5+ Kd7 d6 Kc6 d7 Kd5 d8R+ Qd7 Qf5 Kc4 d5 Kb3 Kd4 Qc7 e4 Ne7 d6 Nd7 e5 Nc8 e6 Ne7 Ne5 Bd1 Na7 Nc5 d7 Nd5 e7 Rh7 Be2 Nf4 Nec6 Ncd3 Bg4 Ne1 Kc5 Bf3 Rc8 Bd5 d8B Qe5 Rc7 Ne2 Rd7 Qf4 Be5 Bh6 f8B Bg5 Ba5 Bg8 Bd6 Kb2 Bg7 Bh6 Bh8 Bf8 Bb6 Kc3 Bbc7 Kd2 Be5+ Bd5 Bcd6 Bb3 Qa8 Rg7 b8R Rg8 Qb7 Bd5 Rb1 a1B Qb2 Ba2 Rb5 Rg7 Ra8 Rh7 e8R Re7 Rb3 Re6 Rf7 Be7 Re3 Bf8 Rh1 g1Q Bd4 Qgf2 Rg1 Be7 Be5 Bd8 Bf8 Bc7 Nb5 Bb8 Ra4 Qg5 Nba7 Qgf4 Qa3 Bc3 Rb5 Ba5 Ba1 Kd1 Qb2 Bb4+
K1B5/BBB3Q1/1R6/p3Rb1p/3Bp1qk/b1NrP3/Qb1QBnn1/1NQ2q2 w - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 Kf2 h5 Kf3 e5 Ke4 Ke7 b4 c5 d4 f6 d6+ Ke6 d7 c4 b6 c3 b5 c2 b7 Bd6 d5+ Ke7 b6 Nh6 g8Q Ba3 g7 Ng4 g6 Bd6 Bb2 c1B Bd4 Bca3 Qc1 Nc6 b8Q Qc7 d8B+ Kd7 b7 Ne3 Qa7 Rh7 b8B Bdb4 d6 Ng2 Kd5 Qb7 Bdc7 f5 e3 f4 Rh4 f3 Be2 f2 Re4 f1Q Ra2 Qa8 Rb2 Be1 Rb6 Bc3 Qb7 Bcb2 Ba7 Nb4+ Kc5 Qf6 Qa2 Ne1 g8B Qh8 g7 Ke8 d7+ Ke7 Be6 Kf6 g8B Kg5 d8Q+ Qf6 B6g4 Kh4 Bd5 Rh6 Qd6 Nbd3+ Kc6 Be6 Qb4 Ng2 Qbd2 Qf4 Bh3 Qf8 Bf5 Rh8 Bfg4 Bf7 Bc8 Bg6 Bcb8 Qf5 Bd1 Be7 Ne2 Nf2 Nec3 Bea3 Be2 Nd3 Bc5 Rf8 Qg7 Rd8 Kb7 Q4g4 Bc7 Qf1 Ka8 Nf2 Bb7 Rd3 Bd4 Bh7 Rf4 e4 Rf5 Bg6 Re5 Bf5
r3n3/R4N1K/qpRBn2Q/1P1B2R1/1Bq5/4pRBp/N4br1/1kNrNR2 w - - 0 1 legal: proof: e4 d5 c4 f5 exf5 g5 cxd5 g4 a4 g3 a5 b6 a6 Bb7 axb7 Qc8 hxg3 Nc6 g4 Nb8 g5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 f4 Kb4 g4 c5 d4 a5 d6 h5 d5 e5 f6 a4 Kf5 a3 Kg6 c4 f5 a2 f7 e4 f6 c3 d7 h4 d6 c2 Nd2 e3 Bc4 h3 Ndf3 Ka4 b4 Ra7 b5 Ra6 Bd2 Ka3 Ne2 Kb2 Nc1 Nc6 b8B Na5 Ne1 Qe8 d8N Nb3 d7 Ba3 Bb4 Rh7 Bg3 Ra5 Rf1 Nd4 Bd5 Ra6 Nc6 Qe6 d8N Nh6 f8B Rh8 Nf7 Ra7 Bfd6 Rc8 Kh7 Nf3 g6 Ng8 g7 Rcc7 g5 Ra8 g6 Nd4 Qh5 Qc8 Rf3 Qa6 Qh6 Re7 Rf1 Re4 Rf3 Rg4 Rf1 Ne6 Rf3 Ne7 g8R Nf5 Rc8 Nfg7 Rf1 Ne8 g7 Rg6 g8R Rg5 Na5 Rg4 Nab3 Rg5 Rc6 Rg4 Ne2 c1Q Rg5 Qc3 Nbc1 Qc4 Bh2 Rg2 Nc3 Re2 Bhg3 Rg2 Ba5 Bc5 Bb4 Bd4 Nd8 Be5 f7 Bf6 f8R Be5 R8f3 Bf4 Bh2 Bg3 Nf7 Bf2 Bhf4 N6c7 Bg3 Ne6 Ned3+ Kc2 Ne1+ Kd2 Rb1 a1R N3a2+ Kd1 Rb3 Rb1 Ra3 Ra1 Ned3+ Kc2 Ne1+ Kb1 Rg8 Qc8 Ra7 Qa6 Rg5 Kb2 Ne2 Rd1 Nec1 Kb1
rN4k1/Q2qpN2/QQpr1p2/KQb2b2/2q2P2/n5B1/4RrN1/NRNB3N w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 Kd7 d4 Rh6 d6 Ke6 d7 Kd6 d5 Rh8 Bd2 Ke5 Bc1 Kf6 d6 Na6 Bh3 Nb4 Bf1 Nd5 exd5 Rh6 Bc4 Rh7 Bf1 Rh8 Kd2 a5 Kc3 g5 h4 Kg7 b4 f6 h6+ Kh7 b6 a4 b5 c6 Kb4 a3 b7 g4 b8N a2 b6 g3 b7 g2 Rh2 Ra6 Be2 Ra5 Qa4 Qe8 d8N Qf7 d7 Qg7 d6 Rc5 Bf4 Qg3 Qb5 Bg7 Ne6 Qh3 d8N Qe3 d7 Qd3 Ng5+ Kg6 h5+ Kf5 h7 Qb3+ Ka5 Qh3 Nde6 Qg4 d8Q Qh3 Na3 Bf8 Rb1 a1R Bd1 Rd5 Qb6 Qf3 Ne4 Nh6 Bg3 Ng4 h6 Kg6 Ne2 Kf7 N6f4 g1Q Ng2 Ra2 Nc1 Qb3 f3 Rd8 Nf2 Rd6 Nh1 Rf2 Nc2 Bf5 Na1 Qc4 Qa7 Rg8 h8Q Ne5 h7 Bh6 Qab6 Be3 f4 Qgf1 Q6a6 Rc8 Qd8 Qfd3 Qdb6 Bc5 h8N+ Kg8 Nf7 Rf8 Nd7 Re8 b8Q Rd8 Q8a7 Ra8 Nb8 Qdd5 Ba4 Qe6 Bd1 Qd7 Qa6b7 Ng4 Qb7a6 Ne3 Rh5 Nc2 Rg5+ Bg6 Re5 Na3 Re2 Bf5
1R3NQ1/1B1r4/Q3q1Q1/pbBnN3/1rp1Q3/P2Q1R2/BB1p1K1k/nQ3q1q w - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 f4 Bd6 f5 Nc6 f6 Ba3 g6 Ba6 g5 Bc8 cxb3 Bf8 b4 Bh6 b5 Bg7 fxg7 Nb8 b4 Ke7 e4 Ke6 b6 f5 b7 d5 b5 a5 b6 h5 a3 c5 Nc3 d4 Na4 h4 Qd3 f4 Bb2 h3 Bg2 h2 Kf2 f3 Rb1 Nc6 b8Q Rh6 b7 Qc7 Nb6 Nb4 Nd7 Qd6 Nf8+ Ke7 e6 Qf4 e5 Nf6 g8B Rh3 g7 Rh4 g6 Kd8 e7+ Ke8 Ba2 Qf5 g8Q Ra7 g7 Nc2 Qe6 Nd5 g8Q Na1 Qea6 Qf7 Qgg6 Rg4 Qge4 Qe6 Rf1 Kf7 e8Q+ Kg7 Qf7+ Kh6 Qg8 Kh5 Rb1 Qf5 e6 Kh4 e7 Qe6 e8Q Bd7 Qe8g6 Rf4 Ne2 Bc6 Rhf1 h1Q Nc1 Bb5 Qa8 c4 b8B Rd7 Bd6 Rg4 Qef5 Rg5 Bc5 Rh5 Qd2 Rh8 Nd3 Rh6 Ne5 d3 Qc2 d2 Qfd3 Rhh7 Rbd1 Rb7 Qb1 Rhd7 Rc1 Bc6 Rc3 Rb4 Re1 Ba4 Re3 Bb5 Rb3 Qc1 Bh1 Kh3 Qae8 Kh2 Qge4 Qd1 Qe8g6 Ra4 Bg2 Qh1 Rb4 Bc6 Rb6 Rb4 Rb8 Bb5 Qed4 Qc1 Bh1 Ne7 Bg2 Qc3 Kf1 f2 Bb7 Nd5 Rf3 Qc1+ Ke2 Qh1 Qdg4 Nf6 Q4e4 f1Q+ Ke3 Qc1 Ke2 Nd5 Kf2 Qcf1+
B2NB2r/2pn2q1/NB3BB1/pKN3Bn/P5k1/3Q2b1/N1p2nbR/2Q1R2n w - - 0 1 illegal: Other
3Bb3/p1N3p1/1BB2BRn/1p2Qr2/NNR2R2/1P1b1r2/6pK/NkBRqn2 w - - 0 1 illegal: Other
1rB3NQ/N1qnN3/4pp1N/B1Bp1Ppk/R1b1B3/2Q1rrB1/3R1n2/2K4B w - - 0 1 legal: proof: e4 d5 a4 c5 g4 b5 axb5 h5 gxh5 e6 d4 Nf6 dxc5 Bd6 e5 Ng8 exd6 Qd7 Bg5 Qc7 Bc1 Qd8 Kd2 g5 f4 a5 c4 a4 b4 f6 h4 Kf7 b6 a3 b7 a2 c6 Nd7 b8B Bb7 h6 Kg6 h5+ Kf5 b5 Rh7 c7 Re7 c8B Nf8 h7 Ra4 h8Q Qb6 c5 Nh6 c6 Rb4 c7 Rd7 Na3 Qc5 b6 Nf7 h6 Kg6 h7 Rb5 Nf3 Qg1 Qb3 Ba8 b7 Rb4 Ne5+ Kf5 Bg2 Rd8 d7 Rc4 Rh2 Ra4 Ng6 Kg4 f5 Qh1 Ne7 Re4 Ng8 Rf4 Qc3 Qf1 Bh1 Re4 Nb5 Ne5 Ba3 Rb4 Na7 Qc4 Kc1 Qa6 Rd2 Rb3 Bc5 Re8 d8B Qd6 Bd7 Kh4 c8B Qc7 Bb5 Kh5 Bd3 Ng4 Bc2 Nd7 Bce4 Qc6 Bdc7 Nf2 Ba5 Rf8 Bh2 Qc7 b8N Bc6 Bg3 Bb5 Nbc6 Bc4 Nce7 Re8 Rb1 Ra3 Rb4 Rb3 Ra4 a1R+ Bb1 Raa3 Bbe4 Qf4 Qg7 Qc7 h8N Rf8 Nf7 Rd8 Nfh6 Re8 Qd4 Rf3 Qh8 Rae3 Qc3 Rf8 Bb7 Ra8 Bc8 Rb8
1BB1R2r/nBB2rk1/1B6/1nB1n1K1/1N1B4/1R1Q1R1P/1nb3B1/1rq3qN w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Bb6 Bh3 Ba6 Bf1 Ba5 bxa5 Bc8 Kf2 Kf8 Ke3 f5 Kf4 c5 e4 c4 d4 a3 d6 g6 a6 c3 e6 c2 h3 a2 d5 Qe7 e5 Qh7 b6 Qg7 b7 Qd7 e7+ Kg7 e8R Ne7 h6+ Kf7 a7 Qe6 d7 Nbc6 b8B Nb4 d8B Ba6 h7 Bd3 d6 Be4 d7 Qa6 e6+ Kg7 Bg2 Nec6 e7 Qc4 Kg5 f4 Qd3 f3 Bdc7 f2 d8B f1R Be3 c1N Bc5 Ne5 Ne2 Nbc6 Na3 Rf7 Rb1 a1N Rf1 Nc2 Rb3 N2d4 Rf3 Nb5 Ng3 Qc3 Nh1 Qa1 Qe2 Ncd3 Nc2 Nb2 Nb4 Bc2 Qd3 Qg1 B7b6 Qa1 Bdc7 Qa3 Kh4 g5+ Kh5 g4 Kh4 g3 Kg5 Rhf8 h8B+ Kg8 Bf1 g2 Bf6 g1Q+ Bg2 Ng4 Bfd4 Nge5 Rc8 Rd8 e8B Kg7 Bd7 Rh8 Re8 Qaa1 Bc8 Qaf1 B7d6 Qe1 B8c7 Rb8 a8B Rb7 Bb8 Nca7 Bdc7 Qd1 Ba5 Rb6 Bab7 Qc1+ Qe3 Ra6 Bab6 Ra1 Qd2 Rb1 Qe3 Qce1 Qd3 Qc1+
n4k2/1pP1R2R/5N2/NpB1pN1K/1NNb4/nN1QB2b/q2N2pN/1B2b3 w - - 0 1 illegal: Other
1QBq2r1/6nk/3N1nr1/3R1NB1/K2p1b2/1N1P3n/r1R2N2/NN1rBNbN w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 d6 b4 Ba6 b6 Nc6 b7 Rc8 b5 Ra8 b6 Bb5 cxb5 Nb8 h4 Kf7 f4 a5 d3 g5 Kd2 Kg7 Kc3 e5 Kb3 c5 h6+ Kh7 f6 c4+ Ka4 e4 f7 d5 f5 e3 h5 d4 f6 c3 Rh2 g4 Nh3 c2 Nf2 e2 Nh1 e1N Bg5 c1R Rc2 g3 Bh3 g2 Bc8 Bc5 f8B g1B f7 Ba3 Bb4 Ne7 f8N+ Kg8 h7+ Kg7 h6+ Kf7 Nd7 Kg6 Nf6 Nd7 b8N Ne5 b7 Nd5 b6 Nf4 Nd5 Qf6 Na6 Rg8 h8N+ Kh7 b8N Be3 b7 N5f3 Nf7 Bg1 Nd6 Ne6 Ne4 Nf8 Ne3 Ne6 Nd7 Ng7 b8N Ra7 Nc6 Nh2 Nf1 Rb7 Ne7 Ng2 Nef2 Nf4 Nac5 Nh3 Nb3 Ng4 Be1 Bd6 Nf5 Qd8 Ndc5 Nf6 Qf3 Bf4 Qg3 Rb8 Raa2 Rb7 Na1 Rb2 Ncb3 Rd1 Rc5 Nfe8 Rd5 Nf6 Kb5 a4 Qh2 a3 Ka4 Rbd2 Rc2 a2 Qg3 Be3 Qb8 Bf4 Rc6 Rb2 Rc2 Rd2 Ng4 Rg2 Ngf2 Kg6 h7 Rg3 h8N+ Kh7 Nf7 Rg4 Rd2 Rg3 Nc2 Rg2 N7d6 a1R+ Nba3 Rab1 Nca1 Rd1 Nb1 Rg3 Rc2 Rg4 Bh4 Rg6 Bg5 Ra2+
q1qK4/NP1N2q1/5R2/2R1bn2/3NNrb1/N2q3N/pNBRrB2/n1k1NQ2 w - - 0 1 illegal: No possible last move
NKNn4/7R/1RR1rb1R/5q2/nR3P1r/1RRbb1r1/Rr1k1rRQ/6BB w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 Kf4 h4 a5 b4 g5 d4+ Ke4 f4 e5+ d6 a4 h6 a3 d5 a2 h5 c6 f6 g4 h7 g3 h6 g2 b6 Bg4 f7 Be2 b5 Be7 f8R Ra5 b7 Nf6 Qc2+ Bd3 Na3 Ra8 b6 Qd7 Rh2 Qe8 Nb5 Ng8 Na7 Qd8 Be3 Bg5 d7 Qc8 Kd6 c5 d8R c4 Nf3 g1B Rg2 c3 Rf6 Qc4 Nc8 Bf2 Nd4 Qa4 Kc7 Bgh4 d6 Ne7 d7 Nbc6 b8R Qb5 b7 Ra3 Ne6 Qb1 Rdg8 Nd8 R8g6 Kf3 Qb2 c2 Ba7 c1R+ Qc2 Re8 h8R e4 h7 e3 Rh6 e2 Rfg6 Nf7 d8R e1R Rd4 Bf6 Rb4 Be3 Rf8 Rcd1 h8R Rd2 R8h7 Nd8 Bd4 Rf2 Be2+ Ke4 Bf3+ Kf5 Rfg8 Ree2 R2g3 Rd2 Bh1 Rb3 Rg2 Ke4 R6g3 Rb2 R8g6 Rd1 Qe2 Rg1 Qh5 Rh8 Qh2 Re1 Ra8 Rg1 Ra3 Nd5+ Kb8 Nc3 Rab3 Na4 Nc7 Re8 Na8 Re6 R6g5 Qc2 Rc5 Qb1 Rcc3 Qc2 Rc1 a1R Ra3 Qb1 Ra2 Qc2 Rcb3 Qc5 Rgg6 Qf5 Rcc3 Kf3 Bc5 Ke2 Qh4 Kd2 Ka7 Bg7 b8R Re4 Rc6 Bf6 Rgg6 Re6 Bd5 Rfg2 R8b6 Bed4 Kb8 Rg4 Qh1 Raf1 Qh2+ Bf2 Bd4 Rh4 Bh1 Rg2 Be5 Bc5 Bd4 Rg1 Bf2 Be3 Rg8 Rf1 Bg1 Rf3 Rgg6 Rgf2 Rg2 Rg3
KR2bR2/QNB2qRP/n5N1/4Rn1B/2r2r2/R1Rp2k1/2b2b2/rnRR3R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 e4+ Kh4 c4 g5 b4 a5 c6 f5 c7 d6 c5 a4 c6 a3 b6 g4 b7 f4 e6 f3 h6 g3 b5 f2 e5 g2 h7 a2 b6 Bg7 e7 Bh3 e8R Qg5 c8R Qf5 c7 Ra3 Rf8 Bg4 Ne2 g1R Bf4 Rc3 Na3 Rg2 Nc4 Rgg3 Qa4 Qg6 e6 Rce3 e7 Qe8 Qa7 Bc3 Na5 Nc6 b8R Bd7 b7 Bb2 Rd1 a1N Ra8 Re4 b8R Rf3 Nb7 Nc2 h3 Qg6 e8R Na3 Re5 Rc4 Bh2 Bc1 Nf4 Nb1 Be2 f1B Rf7 Be8 Rg7 Rf2 Bf3 Nh6 Bh5 Rf8 h8R Ra2 Rhg8 Rf7 Rf8 Nf5 Bg3+ Kg5 Bh2 Bd3 Bg3 Bc2 h4+ Kh6 Bh2 Ra1 Bg3 Qh7 Ng6 Be3 Bh2 Na5 Bg3 Nb3 Bh2 Nc5 Bg3 Rd7 Kc6 d5 Bg4 Qg8 h5 Kg5 h6 d4 h7 d3 Rd5 Bg1 Qa4 Rb4 Bh5 Rb5 Nd8 Bb3 Qd4 Qf7 Ra3 Na6 Qa7 Bb6 Kb7 Rb4 Ka8 Bf2 Nb7 Rd8 Rc5 Rdd4 Rcc1 Rh4 Rd8 Rhd4 c8R Bc2 Rcc3 Rbc4 Bc7 Rf4 Rd5 Rh4 Ne5+ Kf4 Rda5 Rg4 Ng6+ Kf3 Re5 Kg3 Nc5 Rge4 Nb7 Rf4
N3r1Bk/2R1q1r1/1n2qN1n/2N1BQ2/1K3RbN/P1q1N3/4N1Np/1Q1N2bn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kf7 d4 Kg7 Kd2 c5 Kc3 h5 g4 b5 f6+ Kh7 d6 e5 d7 c4 g6+ Kh6 g7 Kh7 d5 h4 a6 e4 a3 h3 a7 e3 g5 e2 d6 e1N g6+ Kh6 f7 h2 f5+ Qg5 d8N Nc6 d7 Ng2 f6 Ne5 Nb7 Bd6 f8Q Nd3 d8N Bc7 f7 Nc5 Bf4 Ne4+ Kb4 c3 Ne6 c2 Be5 c1Q Ne2 Ngf6 Nbc3 Qc2 N6f4 Rg8 Qb1 Nd7 Nd1 Nf2 Nc5 Nh4 Ng2 Nb6 Rg1 Rb8 a8N Nh1 Ra2 Qcf5 Rc2 Qe7 Rc4 Qfe6 Rf4 Bd7 Qc8 Nf5 f8N Bc6 Qd7 Re8 Qdd3 Bf3 Qe4 Rh8 Qec2 Rh7 g8N+ Kh5 g7 Bg4 Ng6 Nh6 N6h4 Bb8 Qa1 Ba7 Nf6+ Kg5 g8N Rg7 Nd5 Kh5 Nf5 Kg6 Qab1 Kh7 Nd5e3 Kh8 Qe4 Rf8 Nf6 Re8 Ka5 b4 Nfh4 b3 Qf5 b2 Kb4 Rgg8 Nc1 Rg5 Bc4 Rgg8 Ne2 Rg7 Qbc2 b1Q+ Qb2 Qe4 Qb1 Q6c6 Re1 Qc2 Bg8 Qce6 Ref1 Qc1 Rc4 Qc2 Rff4 Qc3+ Kb5 Qa1 Na6 Rh7 Rc7 Nd5 Nf1 Bg1 Nfe3 Nb6 Nc5 Rg7 Kb4 Qc3+
k1K5/Bq4pQ/2Q1NQ1Q/3R1RQ1/Q4rQN/1b2n1P1/q1n2Q1q/r1nb1B2 w - - 0 1 illegal: No possible last move, all moves rejected
1k2r1RN/R5Q1/n3P3/BBBp3B/B3r3/KBr1NB1b/1rQq3q/1B3nb1 w - - 0 1 legal: proof: f4 c5 d4 g5 dxc5 e5 fxe5 b5 h4 b4 hxg5 b3 axb3 Qe7 b4 Qf6 b5 Qd8 Kd2 a5 Kc3 f5 Kb3 h5 g4 a4+ Ka3 f4 b4 f3 e4 f2 c4 d6 c6 h4 c5 h3 c7 Kd7 c6+ Ke8 b6 h2 b7 Ke7 g6 Bf5 c8B Bd7 c7 Be8 g7 Ra5 g5 Rh4 g6 Rh7 b5 Rh5 e6 Ra6 e5 Rh4 b6 Bd7 Be3 Rg4 Bc5 Rf4 Nh3 Rh4 Bb5 f1Q Rg1 h1R Qc2 Rd4 Nd2 Qb1 Nf1 Nh6 g8B Rc4 g7 Ng4 Ne3 Rd4 Bh7 Rd2 g8B Qd1 Nf4 Rh3 Ng6+ Ke8 e7 Nh2 Bb3 d5 Rg4 Nf1 Nh8 Ra8 Rg8 Na6 b8Q Rg2 b7 Qd2 Be4 Rg4 Bg2 Re4 Qa7 Rg3 b8B Rf3 Nf5 Rc3 Bf3 Qh2 Bb7 Qd2 c8B Qc7 B7c6 Qd6 Ka2 a3 Bc7 Q6h6 B7b6 Qhh2 Ne3 Rb8 Ba5 Rb7 Kb1 a2+ Kb2 Rb6 B5a4 Rb8 Bcb5 Ra8 Rd1 a1R Qc7 Rc1 Ka3 Rb1 Rc1 Rb2 Ra1 Bc6 Bf5 Bd7 Qb6 Rc8 Qf6 Rd8 Rg4 Bh6 Qg7 Bf4 Rg5 Bg3 Rg6 Bf2 Rg3 Bg1 Bh7 Bc6 Bg6+ Kd7 e8B+ Kc8 e6 Kb8 Bgh5 Bd7 Beg6 Re8 Bd3 Rg8 Bd8 Bc6 Qc1 Qh4 Qe7 Bd7 Bc6 Nb4 Ka4 Rf4 Bde2 Qh1 Bb1 Re4 Qc2 Re8 Rg8 Qh2 Qg7 Ng3 Ra2 Na6+ Bec4 Nc7 Kb4 Bc8 Ra7 Ba6 Ka3 Bb5 Bf1 Na6 Ba5 Be2 Ba4 Bd1 Bh1 Bg4 Bf3 Bh3 Bfb5 Nf1
3B4/3p4/N4bNk/r1b5/1b1Pnn1N/Npn1Nrq1/2QRBNRN/2NQK3 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Ba6 c4 Bb5 cxb5 Rh7 Qg4 Rh6 Qd1 Rh8 Ke2 Kf7 f4 g5 d4 Kg7 h4 c5 a4 e5 h6+ Kh7 Ra2 g4 h5 b3 b6 c4 a6 c3 a5 g3 b7 c2 f6 e4 a7 g2 f5 e3 a6 Bg7 f7 Qe7 f6 Qf8 Rh2 Nc6 b8N Nb4 Nf3 g1B Rg2 Bf2 Nh2 Qc8 f8Q Qc6 f7 Qd5 Qc8 Qb7 Nc3 Qd5 Ne4 Ne7 f8N+ Kg8 h7+ Kf7 h6 Bh4 Ne6 Qf5 N6c5 Nec6 Nd3 Qg6 Nef2 Rg8 h8N+ Kf6 h7 Qg3 Ng6 Bg5 Nh4 Rf8 h8N Nd5 N8g6 Nce7 Ba3 Ng8 Be7+ Kf7 Bd8 Ngf6 Qc4 c1B Rd2 Ba3 Nc1 Bb4 Qcc2 Ne4 Nc6 Rg8 Na5 Rf8 Nc4 Bge7 Na3 Bed6 Qb2 Bdc5 Qbc2 Rc8 a8N Ndc3+ Ke1 e2 a7 Bh8 Nc7 Kg7 a8N Kh6 Nd5 Rf3 Ne3 Bf6 Nc7 Rb8 Na6 Ra8 Nb8 Ra4 Na6 Ra5 Rd3 Nd6 Kd2 e1N Be2 Qg5 Rg4 Ng2 Rg3 Nf4 Rg2 Qg3 Ke1 Nde4 Rd2 Bd6 Bb5 Bf8 Be2 Bfc5
nR1rBb1n/1B2N2B/pN2Br1B/q5Kb/3P4/q1Q4R/3QpB1B/2q2kB1 w - - 0 1 illegal: No proof kernel
1k1r1N2/RqN2r2/nR1q1Q1Q/1B2b3/1b1nN3/1NQ5/B5PQ/2K2nBB w - - 0 1 illegal: Other
R1B2r2/2B2Q2/r1N1Rq2/rQB1RNk1/Knq1rb2/Q7/1Pp1B2R/3Q4 w - - 0 1 illegal: No possible last move
1q3R1B/r2n1Nnk/2RQ1Q2/5pQ1/Nr2NKp1/2B5/1BNP1p2/3B1Qr1 w - - 0 1 illegal: Other
1B1RNB1Q/1bbnn2B/Bk5q/1nN5/b1b2Q2/1N1KP2r/2N2RQ1/n6Q w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bb7 d5 Ra5 bxa5 Bc8 d4 Kd7 Kd2 f5 g4 h5 g6 c5 g7 Kc7 e3 f4 e6 f3 d6+ Kb7 e7 a3 e8N f2 g5 a2 d7 h4 b6 c4 a6+ Kc6 d5+ Kc5 a7 h3 a8Q c3+ Kd3 c2 b7 h2 g6 Kb6 d6 Rh6 Ne2 Qf6 d8N Kb5 d7 Ba3 Nd2 Rh3 Ne6 Bb4 d8Q Qe7 Qd4 Bc3 Qf4 Bd4 Nb3 Qc7 Nec5 Bd7 Ba3 Ne7 g8B Qd6 g7 Be5+ Ned4+ Kb6 Bh7 Qh6 g8Q Bc7 Qh8 Ba4 Qd2 Nd7 Rd1 a1N b8B Bd6 Rg1 h1B Rg2 Bc7 Be2 f1B Rf2 Bb7 Qe1 Bfg2 Qh1 Bf1 Bb4 Bc8 Qag2 c1N+ Ke4 Na2 Ba6 Be2 Nc2 Bc4 Rd5 Bb7 Kd4 Nf6 Rd8 Nc3 Ba3 Nd7 Bb4 Bg8 Kd3 Nb5 Ne6 Nc8 Bf8 Ne7 Nec5 Bc4+
1BB1QQRQ/N4QrK/2NP4/pRn1R1b1/1bn2qR1/2b3r1/r1B5/B5k1 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 b4+ Kd4 b5 h5 g7 a5 f6 e5+ Kf5 c5 Kg6 h4 d6 c4 f7 h3 d7 e4 b7 e3 b6 h2 Ne2+ Ke4 d4 Kf3 d5 Kf2 d6 c3 Qe1+ Kf3 Bb2 c2 Ra4 c1B Na3 Ra6 Nb5 Qe7 d8Q Qe8 Ned4+ Ke4 Bd3+ Kf4 Bc2 e2 Na7 Ke3 Ndc6 Nf6 g8B Nbd7 b8B Nc5 b7 Nfd7 Ba1 Rh3 Rf1 h1R Rf5 Bg7 Re5+ Kf3 Rc4 Qe7 f8Q+ Kg2 Be6 Nb6 Bc8 Rg1 Qef1+ Kh1 Qde8 e1B Q1f7 Rhg3 Kh7 Bb4 g6 Qf6 g5 Qf4 Qh8 Bf6 g7 Be3 Rd4 Nc4 g8Q Rb6 g6 Bed2 g7 Bg5 Qff8 Bdc3 Qgf7 R1g2 g8R Kg1 Ba4 Ra2 Bc2 Rb5 Rde4 Qf2 Rg4 Qe3 Bc7 Qf4 b8R Rb7 Bd8 Re7 Bc7 Re6 Rb5 Rg6 Bb8 Rg7+
qkB1Q3/2q1n2n/BN3b2/1p2B1R1/RQb4N/B1Q3P1/2QNq3/K3rNn1 w - - 0 1 illegal: No possible last move
2n3qq/Pq2Nk2/5r2/2pb1rn1/QQ3R1K/1NNB1B1N/5RRB/2Br1R2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 e6 g4 Kd7 h4 Nh6 g6 Be7 g7 Ba3 g5 Be7 g6 Bg5 hxg5 Ng8 Bc4 Ke7 Bf1 Ke8 Kf2 c5 Kg3 h5 d4 b5 a4 e5 f6 b4 d6 e4 d5 b3 f7+ Kd7 f8R e3 a6 b2 a5 e2 a7 e1R a6 Nc6 Qa4 Rb8 a8B Re5 a7 Ba6 Rf4 Ke8 d7+ Ke7 d6+ Ke6 Kh4 Na5 Ra2 Re1 Bd3 Bb7 Nh3 Bf3 Nc3 b1Q Rf1 Re5 Raf2 Ne7 g8R Rb6 g7 Rf5 g6 Nc4 Bae4 Bh1 Bf3 Ne5 Qb4 Qf8 d8B Nc8 d7 Nf7 Bc7 Ng5 d8N+ Ke7 Be5 Rbf6 Nc6+ Ke8 Qa4 Qb7 Na5+ Ke7 Nb3 Qf7 Rf8 Qg8 Rg4 Rh6 Bh2 Rd6 Rgg2 Rd4+ Bde4 Rd1 Bd3 Ke6 Kg3 h4+ Kg4 Qh7 g8N Qhg7 Ne7 Qg8 g7 Rhf6 Rd8 Kf7 Rd4 Rc6 Rf4 Rcf6 Ng1 h3 Kh4 Qf8 Bg3 h2 Nh3 Ke6 g8Q+ Qf7 Qd8 Qg8 Qda5 Kf7 Rgg1 Bg2 Q5b4 h1Q Bh2 Rd6 Bg4 Bd5 Rgg2 Rdf6 Bf3 Qg1 Rd2 Qd4 Rdf2 Qe5 Ng6 Qee8 Ne7 Qef8 Bd2 Qfg7 Bc1 Q7h8+
2R2n2/RQ4N1/R6P/b3nbbb/1N1NNk2/n3R3/Bp2Q3/KBr2BBr w - - 0 1 legal: proof: c4 a5 h4 h5 g4 g5 hxg5 f5 b4 d5 bxa5 h4 cxd5 Kd7 e4 Qe8 exf5 Qh5 gxh5 Ke8 d4 Kd7 Kd2 Kd6 Kc3 e5 Kb2 b5 f4 c5 a4 c4 g6 h3 f6 b4 h6 h2 a6 e4 f7 e3 g7 e2 a7 e1N f5 Be6 f6 Ng2 a5 Nd7 a6 Bh3 Nd2 Ne1 Ne2 Rd8 a8R Nf3 a7 Nc5 Ne4+ Kd7 d6 Ke6 d7 Kf5 d5 Ne1 d6 Rc8 d8N Rc7 d7 Na6 Ne6 Nf3 d8N Ne5 Nc6 Ne7 g8B N7g6 Be3 c3+ Ka2 c2 Bg1 c1B Ng7+ Kg4 Ned4+ Kf4 Qe2 Bf5 Rc8 Rd7 a8B Nc7 Re8 Be7 f8Q Nb5 f7 Bg5 Qe7 Na3 f8R Bd2 Bh7 Rd5 Qb7 Rd7 Rf6 Nf8 Rc8 Rg8 Re1 Rc7 Ka1 b3 Nb4 Rc3 Ra6 Rh3 Qg2 Rh5 Re3 Rh8 Qe2 Be1 Na2 Ba5 Nb4 Rh3 Bg8 Rh7 Bc4 Rh4 Bd3 Rh3 Bb1 Rh4 Ne8 Rc7 Ba2 Rh3 Ng7 Rc6 Bf2 Rh4 Rg1 h1B Rg2 Rc2 Bg1 Rc5 Rgg3 Bf3 Ra7 Rh1 Rg2 Bgd8 Rg6 Bh5 Rga6 Bg5 Qd7 Nac4 Bc6 Na3 Qb7 Rc4 Bb5 Rc6 Bd3 Rc1+ Bdb1 b2+
2N1r1k1/q1n1r2R/R4q1Q/P4p2/B1RN2B1/6q1/nQB2Nr1/n1R2KBN w - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 d4 g5 d3 cxd3 Nc6 d4 Nb8 d5 Kd7 Bg2 Ke7 Bf1 Ke8 h3 Bd7 Bg2 Be7 Nf3 Bf6 gxf6 g5 Nh4 g4 Nf3 g3 Bf1 Be6 Ng1 Bf7 Qb3 Bh5 Qd1 Bg4 hxg4 Qd7 Nc3 Qc8 Nb1 Qd8 a4 Kf7 d4 h5 e4 b5 e6+ Kf8 e5 c5 g5 c4 e7+ Kf7 e8N b4 e6+ Kf8 g6 c3 a6 h4 d6 g2 a7 h3 d5 c2 f7 b3 d7 b2 a5 h2 g7+ Ke7 Be2 Rh3 Nd6 Rh4 Bg4 Nf6 g8B Kf8 e7+ Kg7 e8B Qe7+ Be3 c1R d8N Rh3 f8Q+ Kh8 Nc6 Rc2 Nd2 b1N Qc1 Rh4 Qb2 Rc3 Nc8 Rh5 d6 Na3 d7 Rh4 d8R Rc2 Rd4 Na6 Rc4 Rh7 Rc1 Nc7 Nd4 Ne4 Nge2 Qf6 Bg1 Nc3 Ne4 Na2 N2g3 Re7 Ba4 Rb8 a8R Rf2 Na7 Rbe8 Nc8 Rc2 Ra6 Re2+ Kd1 Nc2 Nf2 Na1 Bd5+ Kh7 Be4 Rc2 Qh6+ Kg8 Nd3 Rf2 Ke1 Rd2 Be3 Rc2 Nf2 Rd2 Bec2 g1Q+ Nf1 Qg2 Ng3 Qb7 Kf1 Qa7 Rg1 Re2 Ngh1 Rd2 Rg3 Re2 Rh3 Rd2 Nd1 Re2 Bg1 Rg2 Ng3 h1Q Nf2 Qh2 Ngh1 Qg7 Qf6 Qf8 Rh7 Qg3 Qh6 Qf6
n3q1b1/B2nbk1B/PN2N3/B6R/QQ1qp2Q/1p1B2NK/r1R2N2/r2Q4 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 d5 cxd5 c5 bxa5 c4 d4 c3 g4 c2 gxh5 Rh7 Bd2 c1Q Be3 Qc2 Bc1 Qc5 dxc5 Rh8 a4 g5 h4 e5 f4 b5 Kf2 b4 Kg2 e4 a6 g4 a5 b3 d6 g3 d7+ Ke7 f6+ Kf7 f5 Rh6 a7 Qe7 d8B Bb7 a6 Nd7 c6 Ke8 c7 Kf7 c8B Nb6 Ra2 Qe8 Be3 Rg6 h6 Bb4 h7 Be7 h8Q Qd7 h5 Rg7 h6 Qe6 h7 Rg4 Bd3 Rh4 Ne2 Bb4 Nbc3 Kf8 f7 Bc5 Qd4 Ne7 h8Q+ Ng8 Rc2 Rh5 Qa4 Rh6 Rh5 Qd5 Kh3 g2 Ng3 g1Q Be6 Rc8 a8N Qd4 Bc7 Nc4 Ba5 Be7 Nb6 Bd5 Qf6 Rc7 Qh4 Nf6 Bc8 Kg7 f8N Bg8 Ne6+ Kf7 Bf2 Nd7 f6 Rc5 Be3 Rf5 Bf2 Rf4 Be3 Rf1 Bf2 Kg6 f7 Qe5 Bc5 Qgd4 f8Q Rf2 Qff4 Qh8 Qb8 Kf7 Qd6 Qdf6 Be3 Qd4 Qdb4 Re2 Nh1 Rd2 Ne2 Rf6 Neg3 Rf1 Nf2 Re1 Qdg4 Ra1 Qd1 Qhe5 Bf4 Qh8 Bb8 Re2 Ba7 Rd2 Rc3 Rda2 Rc2 Qhe5 Bb7 Qb8 Bd5 Qe8 Nf4+ Kf8 Nc8 Bh7 Bg8 Kg7 Ne6+ Kg6 Qbe1 Ncb6 Qeb4 Na8 Nb6 Bg5 Bf7+ Kf6 Bg6 Bg8 Bf5 Kf7 Bh7 Be7
1Q1N1Q1Q/pB3r2/4Q3/krNp2qr/5PN1/q2n3R/K2RBb1N/2B2bB1 w - - 0 1 legal: proof: a4 b5 axb5 c5 d4 g5 dxc5 f5 e3 f4 exf4 g4 f3 Ba6 Qd6 Bb7 Qd1 Bc8 fxg4 Qc7 h4 Kf7 g5 Nh6 g4 Qd8 h5 Qb6 g6+ Ke8 g5 Nc6 g7 Ng8 Nh3 Ne5 Ng1 Ng6 hxg6 Qd8 Kd2 d5 Kc3 Kd7 Kb3 Kc7 c4 e5 c6 Kb6 c5+ Kc7 b6+ Kb8 c7+ Kb7 Nc3 h5 Qg4 h4 Na4 e4 Ra2 h3 Nf3 h2 Be2 e3 Qe6 Bd7 c8B+ Kb8 c6 Rh6 b7 Kc7 b8N Qe8 Nc5 Kb6 c7+ Bc6 Bb7 Rh7 c8Q Nf6 g8Q Be7 g7 Qf8 g6 Qe8 Qh8 Bd8 g8N Nh5 g7 Nf6 Nh6 Ne4 g8Q Nf2 Qf8 Qh5 Ng4 Bh4 Ka3 Rf7 b4 Qg6 b5 Nd3 Rd2 Ka5 b6 Qg5 Ka2 Bb5 Qcd8 Ba6 Qde8 Bf2 Nc6+ Kb5 Q8c8 Rb8 Nd8 Ka5 Qc7 Rc8 Qb8 Bb5 Rg1 h1R Rg3 Rh5 Rh3 Rc6 Nfh2 Ba6 Ba8 Bb5 b7 Rb6 Qbd6 Ba6 b8B Rb3 Bb7 Rb5 Bf1 e2 Bc7+ Kb4 Bb6 e1Q Qb8 Qe3 Be2 Qf3 Nd7+ Ka4 Be3 Ka5 Nc5 Be1 Bg1 Bf2 Nd7 Qe3 Qeh6 Qc5 Qe6 Qc3 Nc5 Qb3+ Ka1 Qa3+ Ra2 Ne1 Bf3 Rb6 Bd1 Bf1 Be2 Rc6 Kb1 Nd3 Rd2 Rb6+ Rb2 Qc3 Ka2 Rb5 Rd2 Qa3+
1Q1n1QbB/1b1N1Np1/2B2nRr/nbQ4P/1KQB1B2/2p5/1N2NR2/k6r w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 b5 g4 b4 gxh5 b3 axb3 Ne7 b4 Bb7 b5 Ba6 b6 Bc8 b7 Ng8 b4 c5 d4 Qc7 b5 Qc6 b6 Qb5 cxb5 c4 Ra5 Nf6 Ra1 Bc5 dxc5 Ng8 Kd2 Ke7 Kc3 Ke6 h4 f5 e4 a5 c6 d5 h6 f4 h5 a4 c7 d4+ Kb4 a3 h7 f3 Qc2 f2 Nd2 d3 Bb2 a2 Rh2 Nd7 b8B Ndf6 b7 Ra6 b6 Ra5 Ne2 Ra8 Bd4 Nd7 Bg2 Ngf6 Rg1 Rd8 h8B f1B Qb3 Ke7 e6 Kd6 e7 a1N e8Q c3 Qc4 Nc5 Qf8+ Kc6 Bh1 Ra6 Rg6 Nb3 Rf2 Na5 e5+ Rd5 Bg2 Be6 Be4 Bg8 e6 Bg2 e7 Bf3 Qb3 Ne6 e8N Nd8 Nc4 d2 Nb2 d1B Nd6 Bh1 Qa3 Ba4 Nf7 Bb5 Qa4 Kd7 Bg2 Ke6 c8Q+ Rd7 Qcc5 Rd6 Be3 Rd1 Bc6 Be4 Bh2 Rh1 b8N Bd5 Bef4 Kf5 b7 Ke4 Bg1 Rb6 Nd1 Kd3 Nd7 Bf3 b8Q Bg2 Qa1 Kc2 Qa4+ Kb1 Nb2 Bf3 Qb3 Ka1 Qbc4 Ba6+ Bb5 Re6 Ba4 Bfb7 Bc6 Rd6 Rf3 Bb5 Bd4 Ng4 Rf2 Rf6 Rg5 Rh6 Rg6 Nf6
6BQ/3Q1pN1/1Q2b1B1/b3N1QN/3R1RN1/Pn4K1/q2qqp2/1bBBk1r1 w - - 0 1 illegal: Other
1r2N3/3Q2R1/Kp2b1Nk/PpB4r/1nR1QR2/6b1/1bRB1rNB/2NB2r1 w - - 0 1 illegal: Other
1B1R4/1qNpB1N1/2k1b3/2pn3R/K1BnNrRQ/pP2R1N1/5bQ1/1B5r w - - 0 1 legal: proof: e4 e5 b4 h5 g4 b5 gxh5 f5 exf5 e4 c4 e3 cxb5 Nf6 dxe3 Qe7 e4 Qe6 e5 Qb3 axb3 Ng8 Kd2 a5 Kc3 g5 h4 g4 f4 g3 f6 a4 f7+ Kd8 e6 a3 h6 g2 h7 c6 f5 Kc7 b6+ Kb7 e7 Bh6 f8N Be3 e8B Ra6 f6 Bc5 f7 Be3 h5 Ra5 b5 Bg5 Kb4 Ra7 h6 Ne7 Qe2 Na6+ Ka4 c5 Nd2 Bf4 Rh3 Ng6 Ne4 Bb8 Ne6 Bh2 f8N Ne5 Nc7 Nd3 Bg5 Nf4 Nfe6 Bg3 Be7 Ng6 Ng7 Rf8 h8Q Nf4 h7 Ne6 Bg6 Bh2 Re3 Nd4 Qf3 Rg8 Bc4 Rf8 Ne2 g1Q N2g3 Qh1 Qg2 Ra8 Rg1 Rf4 Qd8 Rb8 h8R Nb4 Rh5 Nd5 Qh8 Ne2 Qh6 Nd4 Qg5 Ne6 Qh4 Nd4 Rf1 Bg1 Rff3 Rf8 Rf4 Bf2 Rg4 Rf4 Nce8 Ka8 b7+ Ka7 Nc7 Kb6 Na6 Ra8 b8R+ Bb7 Rd8 Rc8 Bf5 Rc6 Nc7 Rh6 Bh7 Ba8 Bg6 Kb7 b6 Kc6 b7 Rh8 b8B Bb7 Nge8 Ba6 Be2 Bc4 Ng7 Qh3 Nc3 Kb7 Rhg5 Qh1 Qf1 Nb4 Bb1 Qf3 Qh6 Rh7 Qg2 Be6 Bc4 Kb6 Rge5 Qb7 Nce4 Nd5 Qf6 Rh2 Qh4 Kc6 Rh5 Rh1
n5kb/Rq1P1r1r/2ppB1NR/K3B1rR/1Q2B1p1/NB1RN3/3bQ2N/8 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 b5 g4 b4 gxh5 b3 c5 Nh6 c6 Ba3 axb3 Bc5 b4 Ng8 b5 Bf8 d4 Ke7 e4 d6 e6 Qe8 d5 Bd7 cxd7 Kf6 e5+ Kf5 Bh6 Ke4 Bd2 Kd4 Bh6+ Kc5 Bc1 Qd8 e7 Nc6 Nc3 Nd4 Nb1 Ne6 dxe6 Rh7 Qb3 Rh6 Qd1 Rh8 Kd2 Kd5 Kc3+ Ke4 Kb4 Kf5 e8B g5 h4 f6 e7 Ke6 h6 c6 b6 g4 h7 f5 h5 f4 h6 a6 b7 f3 b8R f2 Bc4+ Kf5 e6 Kf6 Rh5 f1R Nf3 Rh1 Qe2 Rf1 Bb3 Qc7 Bf4 Bg7 Bf7 Qc8 e8N+ Ke7 Na3 Kf8 Be5 Qc7 Nf6+ Qd8 Nd5 Nf6 Ne3 Rd1 Nh2 Rg8 h8N Rd3 h7 Qc8 Ka5 Bh6 e7+ Kg7 e8B Qb7 Bfe6 Rd1 Bd4 Rh1 Bg6 Rf8 Bb1 Rf7 Ng6 Bg5 Rh8 Rg8 Be4 Bf4 Be5 Bg5 Bg3 Ne8 Rh6 Nc7 Be5+ Rf6 Rd1 Na8 Rd3 Bf4 Bbc4 Bg5 b4 Bf4 b5 Bg5 Ka4 a5 b6 Bf4 Bb3 Bg5 Nec4 Bc1 Ne3 Bd2 Nf3 Rh5 Nh2 Rg5 Rh5 Re8 Rf8 Re7 h8R Rf7 R8h6 Re7 Rf7+ Kg8 Rfh7+ Rff7 Rh3 Qa7 b7 Qa6 b8Q+ Qc8 Qb4 Qc7 Ba2 Qb7 Kb3 a4+ Kc4 Re8 Bb3 Re7 R6h5 Bc1 R7h6 Bd2 Nb5 a3 Rg3 a2 Na3 a1B Rg1 Bac3 Ra1 Qc7 Nb5 Be1 Ra7 Bed2 Na3 Bb2 Qc3 Ba1 Kb4 Qb7+ Ka4 Bb2 Qb4 Bd4 Bg3 Be5 Ka5 Bh8+ Be5 Nc7 Nec4 Na8 B6f5 Rh7 Be6+ Ref7 Ne3 Qb8 B4d5 Qc8 Be4 Qb7
5N2/qbQP3n/4B2B/2p1N1R1/5pQ1/p3QB1n/1RQrBN1K/k2qN1b1 w - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 g3 Bh6 fxe5 f4 g4 Ra6 Ra3 Rf6 Ra1 Rf5 gxf5 g4 Nf3 Ba6 Ng1 Bg5 hxg5 Bc8 Kf2 Kf7 Kg2 h5 b4 c5 d4 g3 e4 h4 f6 a4 b6 a3 e6+ Kg6 b7 Qd7 e7 Qb5 e8Q+ Kh7 d6 Qb6 b5 Nc6 b8N Na7 e5 Qa5 g6+ Kh6 b6 Kg5 b7 Kf5 g7 Ke4 f7 Qa4 f8N Qc4 e6 Nh6 g8B Rh7 d7 Qb3 d8Q Qa2+ Nd2+ Ke3 e7 Bg4 d5 Kd4 d6 Kc3 d7 Rg7 Nh3 Bh5 Nc6 Rg6 b8Q Qb1 Be6 Nf7 Ne5 Ng5 Ra2 Nc8 Rg1 Qb7+ Ndf3 Nb6 Rb2 Qa7 Qbc7 Nd5 Nf2 Nf6 Ne1 Nh3 Be2 Nh7 Qa8 Rh6 Qe4 Rf6 Kh1 Bf3+ Rg2 Rh6 Qh5 Rg6 e8B Rg8 Qg4 Rg5 Nc6 Rd5 Bh5 Rd6 Ne5 Rd2 Qeg6 Bb7 Qe4 Ng1 Bf3 h3 Qde2 h2 Q4e3+ Rd3 Rd2 Nh3 Bb2+ Kb4 Rc2 Rd5 Bc3+ Kb3 Bb2+ Ka2 Bd4+ Kb1 Rb2+ Ka1 Qc2 Qa4 N5d3 Rd6 Bg7 Qa7 Ne5 Rd2 Bh6 Be4 Bg6 Bb7 Rg1 Qa6 Bd3 Qa7 Kg2 h1Q+ Kf1 N3g5 Bde2 Qh5 Kg2 Nh3 Rh1 N3g5 Kg1 g2 Rh4 Nh3+ Kh2 Qg6 Rh5 Qd3 Rg5 Qb3 Qcd3 Qd1 Qc2 g1B+
RN2q1Bk/B5b1/1r2n2n/R7/1b4n1/rB3r1b/QnQ1NN1P/1QB1QN1K w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Kg2 g5 b4 f5 d4 Kf7 e4 Kg7 h6+ Kh7 e6 a5 e7 c4 e8B f4 b6 g4 e5 c3 d6 a4 b5 c2 d7 g3 e6 a3 d5 a2 b7 Ra7 e7 Nf6 b6 Ng8 d6 Na6 b8B Nc7 b7 Na8 Bc4 Ra4 Nd2 Rb4 Ne2 Rb2 Ba7 Rb1 b8N Bg7 Bef7 Rb4 e8N Nc7 Bb3 Ne6 Qe1 Rb6 Nf1 f3+ Kg1 Qe7 d8Q g2 d7 Qf8 Nd6 Qe8 Be3 c1N Ne4 Nd3 Nf2 Nb2 Bc1 Bf6 Qc7 Bg7 d8Q Bd7 Rb1 a1R Qcc3 Ra3 Ra1 Bc8 Qdd2 Bd7 Ne4 Bc8 Qcc2 Bd7 Qb1 Bc8 Qdc2 Bd7 Kf2 g1B+ Kg3 f2 Kg2 Nf6 Ra2 Rf8 Bg8+ Kh8 h7 Ng4 Ra1 Nh6 Ra2 Raa6 Ra5 Rf6 Nfd2 f1N Nf2 Rf3 Qa2 Ng3 Nf1 Ne4 Qab1 Nf6 Qa2 Bf8 Qab1 Bb4 Qa2 Nfg4 Qab1 Kg7 h8Q+ Kf8 Qhh7 Bc8 Qhe4 Kg7 Qa2 Kh8 Qcb1 Bd7 Qec2 Bc8 Nd1 Bd4 Nf2 Bg7 Rg1 Nc7 Kh1 Bf5 Rg3 Ne6 Rg1 Ne3 Rg5 Bh3 Rgd5 Neg4 Rd8 Rg3 Nc6 Re3 Ra8 Rg3 Nb8 Rf3 Rh5 Ra4 Ra5 Ra3
kn4NK/2RBBR2/2NN4/B1Qb2b1/qNQR2n1/6q1/BR1nrP2/nr1r4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 Ke5 Kb7 d4 h5 g4 a5 b4 h4 d6 a4 b6 e6 g6 h3 g5 a3 b5 a2 d5 h2 f6 c4 g7 c3 g6 c2 f7 Ra4 d7 Nf6 g8B Bg7 f8Q Na6 d6 Rh5+ Bg5 c1R Qd3 Rc6 Nh3 Qe7 d8B Qe8 d7 Rah4 Na3 Rc2 Nf4 Nc5 Qc4 Rc1 Nd5 Rd4 Bh3 Bh6 g7 Qg6 Nb4 Rcd1 Rc1 Kb8 b7 a1N Ba5 Na6 d8R R4d2 Rd4 Qd3 Rg1 h1Q Qfc5 Qc6 Rg3 Rb2 Rf3 Rb1 Bf7 Qb3 g8N Qa4 Rff4 Qf3 Rc3 Qg3 Bf5 Nd5 Be7 Ne3 Kf6 e5 Bd7 Bg5+ Kg7 e4 Bd5 Rh8 Rf7 Ng4 Rc2 Rh6 Rc3 Rb6 Kh8 e3 Rc1 Ka7 b8N e2 N8c6+ Ka8 Rc3 Rb8 b6 e1N Nb5 Bb7 Nd6 Nf3 Ne5 Nfh2 Nc2 Rh1 Qd3 Bh6 Qc7 Rhf1 Ba2 Bd5 b7+ Ka7 Rc6 Bg5 Qc4 Nf3 Rc5 Rbe1 Qc8 Nd2 Rc6 Ra8 b8R Re3 Rb1 Rb8 Rc5 Rb2 Nb4 Re2 Qc6 Kb8 Q6b5+ Ka7 Rc7+ Ka8 Nec6 Rd1 Qb6 Nb8 Qbc5 Rc2 Rb3 Rcc1 Rb2 Rb1
B1N4k/R1Qrn3/rQB1N3/3n1R2/1Qrb1PRB/2q1Qn1q/K5BR/5b1r w - - 0 1 illegal: No possible last move
1rn1N2Q/1BRn1N1r/N2RKBn1/bq2PBr1/7N/2Qn3b/1B1qQQ2/1k6 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e6 Ke7 Kf2 Kf6 Kf3 Ke5 Kg4 Ke4 b4 c5 d4 a5 h4 g5 h6 c4 h5 f6 b6 c3 b7 c2 b5 a4 b6 a3 h7 a2 d6 Qd7 d5 Ra6 h6 Ne7 Nf3 Qe8 d7 Ng6 d8B Be7 d6 Qa4 d7 Rf8 Bh3 Nh4 Na3 Qb4 Nc4 Bd6 e7 Ra7 e8B Nc6 b8Q Bc7 b7 Ba5 Qg3 Ne7 Bb2 c1N b8N Qd6 h8N Nhg6 Nh4 Rb7 Rb1 a1N Qdg1 Qd3 h7 Nab3 Na6 Nc5 e3 Qd4 Nd6+ Kd3+ e4+ Kc2 Bf7 Rb8 Bd5 Rf7 Ne8 Qc3 Bb7 f5+ Kh5 f4 Kg4 f3 e5 Rg7 Nf7 f2 h8Q f1Q Q1f2+ Qe2+ Qgf3 Rh7 Rd1 Qd3 Ra1 Qb5 Ra4 Kb1 Rc4 Qe1 Q3e2 Qc3 Rdd4 Qd2 Rc3 Nd5 Kf5 g4 Bg5 g3 Bf6 g2 Rdd3 g1R Rd4 N5b3 Rc7 Nc5 Bg4 Nb6 Rd5 Ne6 d8Q Nd3 Qd6 Bd7 Qb4 Nc8 Qc3 Rg3 Rd6 Nef8+ Ke4 Bf5+ Kd4 Nd7 Bh3 Qb6+ Kd5 Rg5 Bg4 Be4+ Ke6 Qb5 Bh3 Bg2 Bf5 Bh3
r3r3/2N2nRq/1q1n2NQ/1nP1RBBb/B1Q2QKb/6Q1/nkBN3q/5N2 w - - 0 1 illegal: No possible last move
krr4R/2bq4/5Qn1/B1R1QB1Q/1RBRnNbb/1N1b2P1/n2Q4/B1n4K w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 a5 b4 e5 d4 c5 g6 Kc7 g3 Kb7 Kg2 h5 b6 e4 f6 e3 b5 h4 g7 e2 d6 e1B d5 a4 f5 a3 d7 c4 d6 a2 f7 c3 f6 c2 Bb2 c1N Bd3 Qe7 d8Q Ne2 d7 Ra5 Nd2 Ra3 Nh3 Ra8 Nf4 Nc6 Bf5 Na5 Nb3 Nc3 Rc1 a1N Qh5 Nc2 Ba1 Bd2 Rhd1 h3+ Kh1 Nb4 Rc2 Kb8 b7 Ne4 Rc5 Be3 Rd6 h2 Rd4 Ka7 b8R Na2 Rb6 Rb8 Rb7+ Ka8 b6 Nh6 g8B Ng4 Nd5 Ne5 Nf4 Bg7 f8R Ng6 f7 Be5 Re8 Bf6 f8Q Bh4 Bc4 Qf7 Qf6 Rg8 d8B Qd7 Q8d6 Bg1 Nd2 Nb3 Qd5 Nbc1 Nb3 Rg7 Rh8 Rg8 Rd2 Bd4 Rd1 Be5 Rd4 Ng5 Qg2 Bc7 Qd2 Ne4 Rb5 Bd6 Rb4 Be5 Rc7 Rf8 Rc5 Bc7 Kg2 h1B+ Kh2 Ba6 b7+ Ka7 Kg1 Bf3 Kh2 Bg4 Kh1 Bd6 Ba5 Bc7 Bf7 Rbc8 B7e6 Bd3 b8Q+ Ka6 Qb5+ Ka7 Bf7 Ka8 Bc4 Qd8 Qe8 Qd7 Qee7 Rb8 Qee5 Rfc8
b7/2Rq2k1/4r1q1/Q1Qq2B1/nN1n2np/1QNQ1B1B/N1P4N/R2r1KbB w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 b4 h5 g4 d5 b6 a5 f6 e5 c6 e4 c7 e3 g6+ Ke6 f5+ Ke5 f7 Kf6 g7 d4 b7 a4 g5+ Ke7 g6 Kf6 b5 d3 b6 a3 Nf3 e2 Bg2 Na6 b8N a2 b7 Ra7 Nc6 Nc5 b8N Na4 Na6 Ne7 g8Q Nc5 g7 Ra8 Nc3 Qd6 Rb1 a1Q Rb7 h4 Nh2 Ng6 Bf3 d2+ Kf2 Bd7 c8B Ne5 Rc7 Qa2 Rg1 Be7 f8Q+ Qf7 Bh1 e1N Bb7 Ra7 Qa8 Qg6 Qb3 Rd8 g8B N1f3 Be6 Kg7 Re1 Be8 Kf1 Na4 Qe2 d1Q Bg5 Q1d2 Ra1 Q6d4 Bd7 Bc5 Qec4 Qdd6 Qd5 Bg1 f6+ Kh7 f7 Kg7 Bh3 Ng4 Qc5 Bd7 Qe3 Bf5 Qc5 Be4 Qcd5 Qde6 Qc5 Rd5 Qcc4 Qd7 f8Q+ Kh7 Qd6 Kg7 Qdc5 Qd4 Qe2 Qe5 Qee3 Rd2 Qd3 Qee6 Nd4 Bc6 Nb4 Ra6 Nca2 Qc4 Ne2 Nd4 Qaa7 Bd5 Qa5 Re6 Nec3 Qc6 Q7c5 Qd6 Bc8 Ba8 Bcb7 Qe5 Bbe4 Qd5 Bef3 Rd1+
n1QBQ2K/N2N3B/RQ1bbqr1/2r2pnN/PqR2Qq1/5R1r/7R/3k3N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 b5 Kf4 g5+ Kf5 c5 e4 g4 d4 g3 h4 c4 h6 b4 e6+ Kd6 e5+ Kc7 a6 Kb6 h7 Kb5 h5 f6 Kg6 b3 h6 Ka4 a7 g2 e7 c3 e8N c2 e6 b2 e7 Nd7 d6 Nc5 d7 Bb7 d5 Rb8 a8N Bc8 d6 Nb7 Ne2 g1Q+ Ng3 Nc5 Qd2 Qa5 d8Q Nb3 d7 Rb5 Rh4+ Nd4 Qb6 Rc5 d8Q Bd7 Nc3+ Ka3 Bd3 Qd1 Ng7 Rd5 e8Q Bb4 Qc8 Nb5 Rc4 Nc7 Qf4 Be6 N7h5 Rc5 Kg7 Qa6 Nh1 Qg4+ Bg6 f5 Nb5+ Ka4 Na7+ Ka3 Bd2 b1Q Be1 Kb2 Bh4 c1R Bd8 Rf1 a4 Rf2 Ra3 Rg2 Rg3 Nf6 Rf3 Rf8 h8R Ne4 h7 Ng5 Rg8 Rf6 h8R Rg3 Rh7 Rh3 Kh8 Qe1 Rh6 Qe4 Bh7 Rg6 Rf8 Qeb7 Rf6 Qb8 Rd4 Kc2 Re4 Kd1 Rc4 Bd5 Re6 Qbb7 Re2 Be6 Rh2 Qe4 Qbc6 Ba3 Nb6 Na8 Nd7 Qe1 Qb6 Qb4 Qa5 Qd6 Qac7 Qe7 Qb6 Qf6+ Ng7 Re5 Rh5 Qb3 Rg2 Qf7 Rh6 Rf6 Rh4 Bd5 Rh6 Be7 Qbc6 Qb4 Nh5 Rfe6 Rcc3 Ba2 Rh2 Rc5 Rf6 Bd5 Rc4 Bf8 Qb5 Qe7 Rf7 Rg6 Rf6 Bg8 Rb6 Be6 Ra6 Qf7 Qbb7 Bd6 Qb6 Qf6+
N1QR1qnN/1rb2B1R/1B1Q2q1/2Bp1rP1/4Q2R/2n1Qb2/2R3n1/1B1K1k1q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 g4 a5 c4 e5 b4 h5 c6 d5 f6 Kg6 f5+ Kh7 b6 h4 f7 h3 b5 a4 b7 e4 f6 Kg6 b6 e3 c7 e2 c5 a3 c6 h2 Qd2 a2 Nf3 Bf5 c8Q Qe8 c7 Ra5 Qe3 Qe6 Nh4+ Kh7 Nc3 Be4 Na4 Ra6 Ng6 Be7 f8Q Qd6 f7 Ra8 Qfe8 Bf3 f8B Bd8 Q8e4 Na6 b8R Ra7 b7 Nb4 Nb6 Qc6 Bc5 Nc2+ Kd2 e1N Bd3 Qe8 Na8 Nd4 Bb1 Ne2 Kd1 Ng2 B1a3 Qe7 Bb6 Qf8 Bd6 Kg7 Bdc5 Rh7 Nh8 Rh5 g6 Kf6 g7 Rf5 Qb3 Kg5 Qbe3+ Kh4 g5+ Kg3 Qb3 Nh6 g8B Kh3 Bf7 Ng8 Qbe3 Kg3 Qd7 Kh3 c8R Bc7 Rd8 Kg3 Rbc8 Kh3 b8Q Rb7 Rg1 h1Q Qd6 Ngf4 Re1 Kg2 Rf1 Qh7 Rh1 Qg6 Rh4 Kf1 Qa7 Bb8 Qa6 Ng2 Rc6 Rc7 Qc8 Rb7 Bc2 Bc7 Rc1 a1Q Bb1 Qe5 Rc2 Qh2 Rh7 Bb8 Rc7 Qh1 Re7 Bc7 Re6 Qgh5 Reh6 Qg6 Rh4 Nc3+
b3Q3/B1r3Q1/3NbBN1/b1P1R2n/1k2pBR1/1r2nBqQ/KQ1qN3/n6N w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kb3 Kd7 f4 e5 h4 a5 c4 a4+ Ka2 g4 b4 d4 f6 g3 c6+ Kd6 c7 a3 b6 e4 f5 g2 b7 d3 f7 d2 c5+ Kc6 h6 Ne7 b5+ Kd5 h7 Rg8 h8N Rg5 f6 Qd6 h5 Ra7 h6 Rg6 h7 Qe6 b6 Rg7 Qf3 d1B Ng6 Rg8 h8B Rg7 Ne2 Kc4 Ng3+ Be2 Rh5 g1Q Bf4 Qh3 Nc3 Qhh1 Re5 Nd7 b8B Bb7 c8N Qh6 Nh1 Nf5 Nd6+ Kb4 Bg2 Be7 f8Q Ba8 f7 Nf6 b7 Nh5 Qh3 Bd8 Qe8 Ne3 f8Q Bg4 Bf3 Rc7 Bf6 Qg3 Ne2 Ra6 Rd1 Rb6 Qg7 Be6+ Rdd5 Rb5 Ba7 Rb6 b8Q Rb5 Ka1 a2 Kb2 a1N Ka2 Rc6 Rg5 Ba5 Rg4 Rc7 Nf5 Kc4 Re5 Rb3 Qb7 Rd3 Qb1 Rb3 Qb2 Kb4 Nd6 Qh8 Qed7 Qd8 Qe8 Qd7 Nf5 Qd5 Nd6 Qd2
1B4n1/p1R1n1nr/b3QrN1/3B2B1/2R3RB/b1bNqR2/N1PkNQ2/K5q1 w - - 0 1 illegal: No possible last move
K1Qb2k1/1n2pNqb/B2Q1bN1/2P1n3/NNRbBQr1/r3BQ2/3b4/4R1B1 w - - 0 1 illegal: No proof kernel
3r4/bNR1b1Bn/1k2b3/bqn2rNQ/1R1N2pK/2R1QNB1/6Pr/B3R2B w - - 0 1 illegal: Other
2nQR3/kBnr3N/4N2Q/NQNP2Q1/1r2nb2/qBRB3p/1B6/3brKn1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 Kc7 d4 Kb7 g6 e5 g5 h5 d6 a5 g7 h4 g6 e4 f6 e3 f7 h3 f5 e2 f6 a4 d7 c4 b6 a3 b5 c3 Nf3 c2 Nbd2 a2 Nb3 Bd6 f8Q Ne7 g8B Ra6 g7 Qe8 d8Q Bg4 f7 Ra7 Nc5+ Ka8 Ng5 Qd7 Nh7 Bc7 Qd2 Nd5 Bb2 c1N Q2g5 Ra4 b7+ Ka7 Rb1 Nb3 Rc1 a1N Rc3 Nc6 b8N Rb4 b6+ Ka8 b7+ Ka7 Bg2 Nce7 Nc6+ Kb6 Na5 Nc8 Qd6+ Ka7 f8N Nc1 Qdh6 Nab3 Nfe6 Nd2 Be4 Qf7 Bd3 Qf3 Rf1 Qe3 Rf8 Bf4 Re8 Nc7 Bf7 Rf8 g8B Ne4 Bg6 Rf7 Ba6 Nf6 Bgd3 Rd7 Bf7 Qe4 Kf2 e1R Bg8 Bd1 Bf7 Re3 Kf1 Ne2 Bg8 Ng1 Bf7 Kb6 b8Q+ Qb7 d5 Ne4 Bg6 Re2 Bdc4 Re3 Bb3 Re2 Qa8 Qb8 Qc6+ Ka7 Qb5 Qb6 Bb7 Qa6 Bh5 Re3 Be2 Qd6 Bd3 Qa6 Nc4 Qa3 Na5 Re1+
1N5Q/2r1Qpb1/3R2R1/Q3Q3/n3rPnn/4RB1K/kN1b2BB/rRrq1B2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Bd7 exd7 Kg6 Rh5 Bg7 Rh1 Bf8 g4 h5 b4 a5 b6 e5 b5 c5 b7 e4 b6 a4 Ra3 e3 Qd4 e2 Nd2 h4 Ngf3 h3 Ne5+ Kg7 g6 Kf6 g5+ Kf5 g7 h2 g6 c4 Rg1 h1R Nc6 c3 Nc4 c2 Re3 a3 Nb2 Qe7 d8R a2 d7 a1R d6 Na6 b8R R8h3 b7 Nf6 g8B Rh6 g7 Nh5 Bh7+ Rg6 g8B Rh2 Qh8 Rh1 f4 Qg5 Kf2 e1N Bd2 Ng2 Be1 c1B Kf3 Ra5 Bg3 Ra4 Bh2 Nf6 Kf2 Ng4+ Kg3 Nh4 Kh3 Bg7 Bg2 Kf6 Bf3 Rh6 Bhe4 Ke6 Bgh7 Rb4 Bd3+ Re4 Bf1 Nc5 B1g2 Re5 Bd3 Bd2 Rb1 Qf6 Bdf1 Ra1 Ra8 Rh5 b8Q Re4 Ra6 Kd5 Qb5 Rg5 Nb8 Qd4 Rg8 Re5 d8Q Re7 Qda5 Rc7 d7 Qa4 Rg6 Qd1 Re8 Kd4 Ree6 Na4 Qg5 Rg1 Qe7 Rh1 Qag5 Rg1 Qgf6+ Kd5 Rd6+ Kc5 d8Q Kb4 Qfe5 Rh1 Bd3 Kb3 Bb5+ Ka2 Bbf1 Rd7 Qda5 Rc7 Bb5 Qe2 Bd3 Rhc1 Ba6 Qe1 Baf1 Qd1
6b1/2r2q2/1KBk1r1Q/3B2NQ/1P2bp1R/QqN2B2/b1Rb2R1/Q1B1nR1n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Ke3 d5 Kd4 h5 e4 f5 g4 a5 c4 h4 b4 h3 c6 f4 Kc5 d4 g6 d3 e6 h2 b6 a4 e5 a3 c7 a2 g7 d2 b7 Rh7 g5 Rh4 g6 Qd5+ Kb6 Ra7 c5 Qb3 c6 Rh8 Nc3 Nf6 g8R Ne4 g7 Qb1 Bg2 Rh7 Bf3 Rh4 Nh3 Na6 b8Q Nf2 Ng5 Nc5 Qa8 Ncd3 Qb3 d1B Qa3 Ba6 c8R Bc4 c7 Qb3 Rf1 h1B Rh8 Bb5 g8B Ne1 Rb1 a1Q Rb2 Rh2 Rh4 Bg7 Rc2 Ba4 Rb8 Bh8 c8Q Qaa2 Qcc6 Rc7 Rd8 Bg2 Rdd2 Nh1 Bf7 Bg7 Qh8 Bf6 Qh6 Be2 Qa8 Bc4 Qa6 Bc6 Q6a5 Bh3 Rg2 Be4 Qa8 Bhf5 Bg8 Bh7 Q8a4 Kd8 e7+ Kc8 Qa7 Kd7 e6+ Kd6 e8Q Rh3 Bf7 Bg8 e7 Rg3 Bd5 Rg4 Nh7 Rg6 Ng5 Be5 Qb5 Rf6 e8B Bd4+ Ka6 Bb6 Bec6 Be3 Qd4 Bd2 Ka5 Qa4+ Kb6 Q2b3 Qg1 Qa8 Qba5 Qe8 Qh2 Qe7 Qa1 Qf7 Q5a3 Qa4 Qh3 Ba2 Qf5 Qb3 Qg4 Ke7 Qgh5 Kd6
Q1r2q1N/2n1b2r/b1r2nNr/1P1RNk2/B2R1N1p/2QK4/B2QBq1B/6Q1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 b4 c5 f4 h5 d4 e5 g4 a5 f6 a4 d6 Ke6 d5+ Kd7 g6 h4 b6 e4 g7 e3 b5 a3 f5 a2 f7 c4 b7 c3 f6 c2 g5 Ra4 g6 Rd4 Nf3 Nh6 g8B Qe7 g7 Ra4 Nc3 Qe4 Ne5+ Kd8 d7 Qb4 Kd3 e2 Bf4 c1R Bh2 e1R Be2 Be7 f8Q+ Kc7 d8N Kd6 f7 Nc6 b8Q+ Kc5 d6 Qa5 d7 Rc4 Qc7 Rh7 Nd5 Qa4 Nf4 Ba6 Qa5 Kd6 Qc3 Ng4 Rb1 a1Q Rb4 Rc5 Rd4+ Rd5 Rg1 Nf6 Rg5 Nb8 Rh5 Rh1 Qg1 Q1a3 Qe8 Qb2 f8N Qab4 N8g6 Rh6 Bh7 Q4a3 g8B Qab4 Bd1 Qf2 Ba4 Qa3 Be6 Qc5 Qh8 Qb4 Qd2 Rc8 Bg4 Rc6 Bg8 Qc5 Be2 Rh7 Qg5 Rc1 Qg1 Rc8 Rg5 Qb4 Rf5 R1c6 Rg5 Bb7 Qg7 Na6 Rh5 Nc7 Ndf7+ Kc5 d8Q Ba6 Nfh8 Rdd6 Qf7 Qa3+ Qb3 Qb4 Bd5 Re6 Qf8 Kd6 Qbc3 Qa3 Ng4 Kd7 Ba2+ Red6 Rhd5 Qb4 Nh5 Ke6 N4e5 Kf5 Nhf4 Qb3 Rc5 Qg8 Qd8 Qf8 Rcd5 Rd7 Qe8 Rh6 Qd8 Ba3 Qe8 Rdh7 Qd8 Be7 Qe8 Rd6 Qec6 Re6 Qa8 Rc6
3bR1QR/QqQ2Rnp/R1rBBN1K/1N2N3/bP5k/7q/1b2rn2/NQ4b1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 e5 Kg4 c5 Kh5 a5 b4 e4 f4 c4 g4 c3 d4 a4 g6+ Kf6 d6 c2 g7 e3 g5+ Kf7 d7 e2 f6 e1B g6+ Ke6 f7 Kf5 b6 a3 b7 a2 d5 Bc5 f8R+ Qf6 d8R Ra5 d6 Ra6 d7 Bb6 Rde8 Bd2 d8Q Nc6 b8Q Bc7 Bc4 Nd4 Ne2 Bc3 Be6+ Ke4 f5 Kf3 Na3 Bb7 Qa7 Kg2 Nb5 Qe7 f6 Bc6 f7 Nf6+ Kh6 Ne4 g8Q Nf2 g7 Bb2 Bf4 c1Q Rf1 Qc3 Bd6 Qd7 Qe7 Bd8 Qb1 Qb7 Nc1 Bd7 Nb3 Rc6 Qg5+ Qg3 Qgc5 Qg4 Qcb6 Kh3 Qc7 Kh4 Re7 Ba3 Rfe8 Qg2 f8N Bb2 Rf7 Qh3 Rd1 Ne2 Rd5 Nf4 Rdf5 Nh5 Ng6+ Kg4 Ne5+ Kh4 Qf8 Bd4 g8N Ng7 Nf6 Bb6 Rg5 Bd4 Rg6 Bb2 Qg8 Bd4 Qg1 Bb2 Rd1 a1B Rd3 Bd4 Qb1 Bab2 Na1 Bbc3 Rg1 Bc5 Qf8 Qb6 Nd4 Qb8 Bf5 Nh1 Nc4 Be6 Ree7 Bb2 Nb5 Nh5 Rg8 Bg1 Ra3 Qb7 Ra6 Ng7 Bg4 Bf5 Qe8 Bc2 Re6 Nh5 Rgf8 Rg8 Ne5 Ba4 Ree7 Rg7 Be6 Rg2 Rh8 Re2 Qg8 Nf2 Re8 Ng7
1Q1Q2KN/nRNqB1p1/N2BR3/1r3n2/N2QBQr1/1P5k/2brBb2/1r2q3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kd4 a5 e4 f4 h4 c6 b6 a4 b3 a3 e6 Kf6 b7 f3 h6 a2 d6 f2 d7 c5+ Kd5 c4 d4 c3 e7 c2 e8Q Ra6 h5 Qc7 d8Q+ Qe7 h7 Ra8 e5+ Kf5 e6 Qa3 h6 Bb4 e7 Bd6 Nh3 Ra7 Qa4 Bg3 e8B Qf8 Nc3 Bh4 Nf4 Qb4 Ba3 c1R Be2 f1R Ne6 Qf8 Bd6 Nd7 b8N Qf7 Na6 Rf3 Re1 Qe7 Nec7 Kg4 Bg6 Bg3 Be4 Rb1 Qc4 Ne5 Na4 Qd7 Qd2 Ra8 Qf4+ Kh3 Qc3 Qb5+ Qc5 Bb7+ Ke6 Rd3 d5 Rb8 Qd4 Nc6 Kf7 Bf2 Kf8 Nge7+ Kf7 Re8 h8Q Bc8 h7 Nf5 Qf8 Re7+ Kg8 Na7 h8N Qd7 Qfe8 Rb6 Qf8 Bb7 Qb8 Rd2 Qfd8 Rbb2 Rac1 a1Q Rc5 Rb4 Rb5 Rb1 Rb6 Bc8 Rb7 Rb6 Bc5 Ree6 d6 Rg6 Ba3 Rg4 Bb4 Qe7 d7 Rb5 Bd6 Qc3 Qe8 Qe3 d8B Qd7 B8e7 Qg3 Qd8 Qg1 Rc1 Qe1 Rc5 Qg1 Re5 Qe1 Rb6 Bb7 Re6 Bc6 Rb7 Bd5 Bh1 Be4 Bhf3 Bd3 Be4 Bc2
rbqqK3/3p4/1NbkB3/B6P/1bB1RbRQ/R3B3/4NnQn/r3QQ1R w - - 0 1 illegal: No possible last move
2b3Q1/R1p1r2B/Qq1NQN2/N3P1Nr/4n1rr/3qQ3/Rb3RnB/R2K3k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 e4 g5 d4 a5 b4 f5 b6 a4 b7 f4 h6 a3 h7 g4 e6 Kd6 e7 a2 e8N+ Ke7 e5 g3 d6+ Ke6 d5+ Kf5 b5 Ke4 b6 f3 h5 g2 d7 Bb4+ Qd2 f2+ Kd1 Qf6 d8Q Nd7 b8R Bf8 h6 Bc5 b7 Ba3 d6 Qg7 Qe7 Bc5 Rh2 Qg6 Bd3+ Kd4 Nh3 Nf8 d7 Kd5 d8R+ Bd6 Qe6+ Kd4 Nc3 Qf6 Ng5 Ng6 Nd5 Ba3 Nd6 Nf4 Rf8 g1R+ Qe1 Ng2 Bf4 Qg6 Nf6 f1Q Rf7 Ra6 Ra8 Bb2 b8N Qf2 Qf1 Rb6 Bg3 Ke3 Ra7 Rb4 Bf5 Rg4 Nc6 Rh1 Na5 Rh4 Rb1 a1R Rc1 Ra2 Ra1 Raa4 Bb1 Rag4 Bc2 Ne1 Qa6 Qg1 Rf2 Qd3+ Rd2 R1h3 Bh2 Rhg3 Bb1 Kf4 Bc2 Qb6 Bb1 Ng2 Rf8 Ne7 Rf7 Re8 h8Q Nd5 h7 Re7 Qg8 Rh5 h8Q Rgh4 Bc2 Ke3 Qh6 Rgg4 Nh3+ Kf3 Qhg5 Qa3 Bh7 Qd3 Rf8 Ndf4 Qh6 Ne2 Ng5+ Kf2 Qhg6 Kf1 Qe4 Ng3 Qe3 Ne4 Bf4 Qdb5 Rf2+ Kg1 Bh2+ Kh1 Rf7 Ba3 Rfa2 Bc1 Nfe8 Qd7 Rff2 Bb2 Nf6 Qdb5 Nde8 Qc4 Nd6 Qd3+
k7/Nprq2Q1/2nB1n1N/Q4n1Q/1PNN1K2/qnnr1B1R/2Q3R1/2B1b2B w - - 0 1 illegal: No proof kernel
1rkBr1R1/1n1R1R2/4p3/1bN2B2/2N2bNr/B1pK1BR1/1N2Q1QP/n2b3q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 f4 c5 d4 g5 a4 b5 a6 c4 h6 c3 h7 g4 f6 g3 a5 b4 d6 b3 f7 b2 a7 g2 f5 e6 d5 Qg5 f6 Na6 Nd2 b1B Nc4 Kd8 d7 Bg7 f8N Bc2 f7 Bg6 Nh3 g1R Nb2 Ne7 Nf2 Kc7 d8B+ Kb7 d6 Qc5 d7 Qc7 Ng4 Qc5 Bh3 Nc7 a6+ Kb6 Rb1 Nf5 Kd3 Qc6 Qe2 Bh5 Ng6 Nh6 f8R Qg2 Rf7 Nf5 N6e5 Re8 h8R Nd6 Rg8 Rb8 a8B Nb7 a7 Bh6 Nec4+ Kc6 Ra1 Na6 Rb1 Re1 Rg1 Qh1 Rg3 Rf1 Ra1 Rf4 Ra5 Bg5 Rd5 Nc5+ Ke3 Nb3 Kd3 Na1 Rd6+ Kb5 Rd4 Nd6 Bf3 Ba6 a8Q Kc5 Qae4 Bb5 Qg2 Bh6 Qee2 Nb7 Nf2 Bg6+ Ke3 Na5 Bc7 Bg5 d8N Bf6 Nbd1 Bh8 Rdd7 Bc2 Bf5 Rh4 Ng4 Be5 Bb2 Bca4 Kd3 Bf4 Nb7+ Kb4 Nd6 Kc5 Bd8 Nb7 Ne4+ Kc6 Ba3 Bb3 Nb2 Bd1 Rd5 Rc8 Nc5 Rb8 Be7 Kc7 Rd7+ Kc8 Bf6 Be5 Bd8 Bf4
R2n1K2/4p3/R2N1b2/NQ1Nkbp1/PBr2r1q/r4QnQ/3n3N/1B1Q2RR w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Qb3 Kf7 Ke2 Kf6 Kf3 c5 Kf4 b5 a4 g6 h4 b4 d4 c4 h6 c3 h5 c2 h7 Ra6 h6 Ra8 a6 Nc6 a7 Qe8 d6 Bb7 d7 Nb8 d8N Bf3 d5 Bh5 d6 Bf3 d7 Bd1 Nf3 Bg7 Nc3 Qf8 Nh2 Na6 Ba3 c1R Nb7 Qc8 d8Q Rc2 Na5 Bf3 Bd3 Be2 Rag1 Qe6 f3 Rb8 a8R Nc5 Ra6 Kf7 Kg5 Rb5 f4 Bf1 f6 Bh3 f5 Rc1 Qd4 Nb7 Nd5 Qc6 Qa1 Rc3 Qad1 Rbc5 Qc4 b3 Bb4 b2 Qb5 b1N Bc2 Nd2 Bb1 Ke8 f7+ Kd7 f8Q Kd6 f6 Ke5 f7 Ra3 Qc8 Qe8 f8Q Rc4 Qff3 Nf6 Qcd7 Rg8 h8R Rf8 h7 Nh5 Rg8 Rf6 h8N Ng3 Rf8 Rff4 Nf7+ Kd4 Qf5 Bf6+ Kh6 g5 Nd6 Bg4 Kh7 Qh5+ Kg8 Qh4 Rfa8 Nd8 Kf8 Bh3 Qc8 Ke5 Qcg4 Nh5 Qgg2 Bf5 Qgh3 Ng3
2R5/1rpn2Br/kq1QR3/bR2PN2/1R1B1N1Q/n6r/p1BnQK1B/1bQ5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 e4 f5 b4 g5 d4 a5 b6 g4 e6+ Kd6 e7 f4 e8Q a4 b5 g3 h6 a3 b7 g2 h7 a2 b6 f3 h5 Bf5 h6 Qg5 Na3 Qg7 Nc2 Qe7 Rh4 Nf6 Bd3 Bg7 Bf4+ Qe5 Ne2 g1N Bh2 Ra6 Ne3 Ra3 Kf2 Qf4 Bc2 Ra4 Qc1 Rg8 h8B Be6 h7 Bh6 Bg7 Nfd7 h8B Nc6 b8R Nce5 b7 Qf6 Rc8 Ra7 b8R Bf5 Rb5 Rb7 Nf4 Nc4 Rab1 Na3 R1b4 Bg5 Rh6 Rf8 Qh5 Rf7 Qh4 Ne2 Qg4 Nc3 Qg2 Bh7 Qgf1 Qe6 Qe2 Ncb1 Rf6 Nd2 Rg6 Nf8 Nf5+ Kd7 d6 Kc6 Rh6 Nd7 Rf6 Qb3 Re6 Bg6 Be5 Rh7 Beg7 Rb6 d5+ Kb7 Bd4 Ka6 e5 Rb7 Bg7 Bh4+ Kg1 f2+ Kg2 Nb6 d7 f1R d8Q Be1 d6 Nd7 Qh4 Rf3 Kg1 Rh3 Kg2 Nb6 d7 Qb2 d8Q Qb3 Re8 Nd7 Re7 Qe6 Kg1 Qb6 Re6 Nb8 Qd6 Nd7 Ne7 Be4 Nf5 Bd3 Bb3 Bb1 Bc2 Ndc4 Kf1 Bc3 Kf2 Nd2 Ra4+ Ba5 Rc4 Nb8 Rcb4 Nd7
Q1B1q2N/R6P/bQRrB3/Qb1NNnk1/3pQqN1/2n2B2/pb3B2/2r3K1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 h4 a5 e4 d5 b4 g5 c4 f5 h6 f4 c6 a4 c5 g4 e6 Kf6 e7 f3 e8N+ Kg6 b6 d4 c7 a3 c6 Rh7 e5 Be7 b5 Bg5 b7 Qd6 h5+ Kf5 e6 Qd8 b6 Bf6 e7 Rh8 h7 Na6 b8Q Bb7 c8B+ Qd7 c7 Ra7 h6 Be4 b7 Bd5 Qa8 Bc4 b8Q Nb4 Qd2 Ba6 Be2 Bg5 Nc3 Na2 Nd5 Nc3 Nef6 g3+ Kf1 f2 e8Q Bb5 Nf3 Ne7 Ne5 Ra6 Nfg4 Rd6 Qb6 Ba6 Kg2 f1B+ Kg1 g2 Bf3 Bfb5 Rh2 Rf8 h8N Bf4 h7 Kg5 Qe1 Nf5 Rh6 Qf7 Qe6 Qe8 Be3 Rf7 Bf2 Bc1 Bd7 Bb2 c8B Rf6 Qe4 Rc6 Qf7 Rfd6 Be6 Rc5 Qfc7 a2 Rc1 Rcc6 Qa5 Rc4 Qcb6 Rc5 Rf6 Rc7 Rf7 Rcc6 Ra7 Rc4 Kh2 g1Q+ Kh3 Qe1 Kh2 Qe3 Kg1 Qf4 Re1 Nd1 Re3 Rc2 Rc3 Rc1 Rc6 Nc3+
q4b2/2B2p2/nK5B/2QbRB2/nPR1rQRB/4NRrQ/3pk2b/3q1N1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 h4 Kg4 e4+ Kg3 b4 Kf2 c4 g5 e6 a5 e5 d5 h6 a4 b6 g4 h5 g3 b7 g2 h7 a3 c6 a2 h6 Qe7 c7 Qe8 c5 Ra7 c6 Qd7 e7 Ra4 Kc5 d4 e6 d3 Kb6 Qd8 e8R Ra3 e7 Bd7 Nh3+ Kg3 Rg1 Be6 Nf2 Qc8 Ng4 Ra4 Nd2 Ra3 Ne3 Na6 b8B Qd7 c8R+ Kf2 c7 Qa4 Qf3+ Ke1 Qf4 Bb3 Rb1 Bc2 Rb3 Nf6 Rc3 Rg8 h8Q a1B h7 Nh5 Qhd4 Rg3 h8B Bh6 Bf6 Ra2 Qc5 Ng7 Bh4 Ne6 Rc4 Bf6 Rcd8 Bfg7 c8Q Be5 Bc7 Bf8 Rd5 Bd6 Re5 Bb3 Rd8 Rc2 e8Q Rc3 Qed7 Rc2 Qcc6 Nec5 Qh3 Rc3 Qh1 Qa3 Qch3 Na4+ Ka5 Rc2 Qc5 Qa1 Rc8 Qa3 Rc3 Bd5 Rb3 Rc4 Rc3 Nb2+ Kb6 Re4 Rc4 Qa4 Rce8 Qd1 R8e7 Qf3 Be2+ Kf2 Ndf1 Ke1 Bd1 Kf2 Ba4 Ke2 Bd7 Na4+ Ka7 Qg4 Bf5 Qg5 R7e6 Qd8 Rg6 Qe8 Rg4 Qd8 Nd2 Qc8 Rf1 g1Q Rf3 Qd1 Ndf1 d2 Bb2 Nc3 Kb6 Qa8 Re7 Nb1 Bg7 Nc3 Bh6 Rg2 Qg5 Bh2 Qf4 Rg3 Re5 Na4+
1Q2N1bk/4p3/K1N1Q1Rp/B2q1P1R/Qr1n3r/1q2B1nB/5B1b/2NQNq2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f6 a6 Ra3 Kf7 Ke2 c6 Kd3 Qd7 Kc4 c5 b4 h6 g4 Ra7 f4 Rb7 d4 Qd6 g6+ Ke8 g5 Bf5 b6 Qe5 f7+ Kd8 b5 Bc8 d6 Kd7 f5 Qe4 g7 Qe3 g6 Qg5 d5 Qe3 Nd2 Nf6 g8N Qe5 g7 Nh5 Nb3 Nf6 Rh5 Qe6 Nf3 Ne4 Nf6+ Kd8 g8Q Nc6 d7 a5 Qe2 a4 Bh3 Ra7 b7 Qe5 Ra2 a3 b6 Ra4+ Kb5 c4 b8N c3 b7 c2 Be3 c1Q Rc2 Rc4 Ka6 Qf1 Nc1 a2 Ne1 a1Q+ Ra2 Qb1 Qd1 Qd4 Rg2 Qa2+ Qa4 Qb3 Qg4 Qc5 Qd1 Bg7 Rg6 Re8 f8Q Qd4 Ng8 Be5 Qf7 Bh2 Nf6 Ng3 Qg8 Na7 Qf7 Nb5 Bf2 Qe5 Be3 Rh4 Nc6+ Kc7 Bf2 Kd6 d8B Be6 Bdb6 Rb8 Bbe3 Qd4 Ne8+ Kd7 d6 Qdd5 Qf6 Bg8 Nc7 Rf8 b8Q Rc8 Ne5+ Kd8 Qe6 Nd4+ Nb5 Ke8 d7+ Kf8 d8B Rc5 Nc6 Rc4 Nd6 Rb4+ Qe2 Qa3 Ne8 Qab3 Ba5 Bf7 Rf6 Kg8 Rg6+ Kh8 Qd3 Bg8 Qe2 Rb5 Qd1 Rb4+
1qQQ3K/1rNP2q1/1kb2R1R/p1R1q3/3b2nB/2Q1BB1R/1BnQ2Np/1r6 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 h5 g4 a5 d4 e6 b4 c4 f4 c3 f6 h4 f5 h3 f7 c2 b6+ Kb7 d6 Qe7 d7 Rh5 d8Q Rh6 b5 Rf6 d5 Bg7 f8R Qc7+ d6 Rf7+ f6 Rd7 g6 Bh6 g5 Ne7 f7 Nd5 g7 Qc4 g8R Qe2+ Be3 c1Q g6 Qc7 g7 Qg2 Ra3 Qf2 Bg2 Qc5 Qd2 Qe1 Bf3 Qf2 Ne2 Qc1 Nf4 Qh4 Nc3 Qe7 Ng2 Rc7 d7 Rc6 Rb3 Nb4 Nd5 Qd1 Nc7 Nc2 Rh8 h2 g8Q Bg5 Qg7 Qb1 Rc1 Ra7 Rh6 Bh4 Rc3 Bf2 Rc5 Qb4 Ra1 Bg1 Ra3 Qb2+ Rac3 Qd6+ Kf6 e5+ Ne6 e4 Qg3 Ra6 Kg7 Rc7 Kh8 Nc6 Qg7 Qf4 Rb3 Qg5 Qgc3 Ne5 Ra3 Ra7 Rb3 Rc6 Nc7 Ng4 Ra3 Kb8 b7 Rb6 Re8 Bf2 f8B Bg1 Be7 Qb4 Bf4 e3 Rf8 e2 Rff6 Bd4 Be3 e1Q Rb3 Ra8 Ra3 Ka7 Rb3 Qa1 Ra3 Qd5 b8B+ Kb7 Ba7 Rb8 Rb3 Rc6 b6 Qe5 Nd5 Ka6 b7 Qb2 Bb6 Re6 Bc7 Rb6 Bcd6 Rb5 Nc7+ Kb6 Ra3 Ra8 b8Q+ Bb7 Qbc8 Rb8 Rb3 Bc6 Ra3 Rb7 Rb3 Qe4 Bg3 Qe5 Bh4 Qa1 Bf8 Qb2 Bg7 Qa1 Rd5 Qbd6 Rc5 Rb4 Ra3 Rb1 Qcd3 Qde6 Bf8 Q6d5 Bd1 Qee6 Beg5 Qf7 Qe1 Qb2 Rc4 Nge3 Qed2 Rb8 Rac3 Qbb5 Ba3 Ng4 Rc5 Qe5 Bb2 Ka7 Qc4 Qb7 Rh3 Kb6 Be3 Qa8 Qcc3 Rb7 Be2 Qb8 Bf3 Qg7+
BNRBr3/R2Q2B1/n7/1QKB3P/1rR1q1np/2N1p3/2bb1kN1/RN3b1b w - - 0 1 illegal: No proof kernel
2r3BB/bN1N2R1/3bnbQ1/R2R2Bp/3n4/RQ2r1Bk/1NPpN1b1/2K4q w - - 0 1 illegal: No possible last move
2Q1QRR1/3N4/p2RN1Rn/K3p2r/3bn3/P3qNrQ/k1B2Qb1/Bn1Nn3 w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 f4 Kd7 h4 g5 d4 b5 Kd2 e5 Kc3 a6 Kb4 g4 d6 Kc6 f6 Kd5 d7 g3 f7 g2 h6 Qg5 d8N Bb7 a3 Qg6 h7 Qh6 h5 Qc6 f5 Nd7 f6 Ra7 h6 Qd6 Qd2 Qb6 Qf2 Bd6 f8N Qc6 f7 Qb6 Bb2 Ne7 Bd3 Ra8 Bc2 Bc7 c6 Ra7 Nde6 Nf5 Nc3+ Kd6 d5 Ra8 Rd1 Nf6 Ba1 Qe3 Rd4 Bb8 c7 Ba7 Ka5 b4 Nd1 b3 Rd3 Rg8 h8R b2 h7 b1N Rh6 Rg3 Rg6 Rd8 c8Q Bc5 Nh3 g1N Nhg5 Nf3 Rd2 Rd7 Rhg8 Ne1 h8Q Ba7 Qh3 Bc6 Nf4 Kc5 d6 Kc4 N4e6 Re7 Qe8 Bg2 d7 Ne4 Rd6 Bd4 d8Q Rb7 Nf3 Ra7 Bd3+ Kb3 Bc2+ Ka2 Qc8 Rb7 Nh7 Rc7 f8R Re7 Nf6 Rh7 Nd7 Rh5 Qh1 Nh6 Qh4 Qc1 Qh3 Qe3
1b4rb/1Qp1np2/8/2Rbk2q/2RR1rB1/NKP3Q1/1N1NN3/Bb1RQQ1n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 e5 a4 e4 axb5 e3 dxe3 Nf6 e4 Ng8 e5 Bc5 Qd3 Bd6 Qd1 Bf8 Kd2 Ke7 Kc3 Ke6 h4 d5 b4 a5 e4 a4 g6 a3 g7 a2 h6 d4+ Kb3 d3 h5 d2 h7 Bd7 c3 Qe8 b6 Qe7 h6 Ra4 b5 Na6 b7 Bc8 b8Q Bb7 b6 Qd7 Nf3 Nb4 Bb2 Qe7 Na3 Nc2 Rh5 Ra8 Be2 Ra7 Qf1 d1B Nd2 Qf6 Bg4+ Ke7 e6 Kd6 e7 Ra5 e8N+ Kc6 e5 Kd5 e6+ Qg5 e7 Bf3 Rd1 a1B Nd6 Be4 e8Q Ra6 N6c4 Bd3 Qee1 Ne7 g8Q Ra4 Qa8 Bc6 b7 Nb4 b8R Bb1 Qb7 Nd3 Re8 Nf2 Rd8+ Kc5 Rd6 Bg7 Rd4 Nh1 Rh4 Bf6 Qg7 Rg8 h8R Bf3 h7 Qh5 Qg6 Bd5 Qgd3 Bg7 Qdg3 Rb8 Rg8 Bh8 Rg5 Rg8 Re5 Ra6 Rf5 Rf6 Rg5 Rf4 Re5 Bf6 h8N Bg7 Ng6 Bh8 Bc1 Bb2 Rg5 Rf2 Nf4 Rf3 Ne2 Rf4 Nb5 Ba3 Bb2 Bb4 Na3 Ba5 Ba1 Bb6 Ka4 Ba7 Nb2 Kd6 Rc4 Bf3 Rc5 Bd5 Kb3 Bb8 Bf3 Ke6 Rg4 Rf5 Rd4 Rf4 Bg4+ Ke5
1R5R/n2RrQbb/1N2B1B1/1k3p2/1b2B1nQ/3r2QK/1p1R1P1B/r1Qb1N2 w - - 0 1 legal: proof: e4 d5 h4 a5 b4 g5 bxa5 d4 hxg5 d3 cxd3 Be6 d4 Bf5 d5 Bc8 d4 c6 d6 Bg7 d5 Kf8 e5 Qd7 e6 Bh6 exd7 Kg7 Qg4 Kg6 Qd1 Bf8 d8Q Kf5 g4+ Ke5 a4 b5 a6 h5 a7 f6 a5 b4 d7 Kd6 g6 Kc5 d6 e5 g7 b3 g5 h4 a6 h3 g6 b2 Nd2 h2 Nh3 e4 Bd3 e3 Kf1 e2+ Kg2 e1B Nf4 Rh5 Qc7 Bb7 d8R Be7 d7 Bd6 Nf1 Bc8 Nd5 Bb4 Nb6 Nh6 g8Q Re5 g7 Bf8 Qf7 Ng4 g8B Re7 Bg6 Bg7 Bf4 Kb5 Qc1 c5 Kh3 c4 Ra3 f5 Rd3 c3 Rd2 c2 Qc3 Nc6 Qg3 Rb8 a8B Na7 Be4 Bb7 Be5 Bd5 Bc7 Rb7 Rb8 Bb3 d8Q Ba4 Rg1 h1B Rg2 Rd7 Qdh4 Rd3 Bd6 Re7 Be5 Nc6 a7 Bb3 a8R Na7 Rh2 Bf3 Rb7 Bd1 Rd7 Be6 Rb8 Ba2 Qff6 Bd5 Be6 Ba2 Qf7 Bb3 Qb1 c1R Qc2 Rb1 Qc1 Ra1 Qh6 Ba5 Bc4+ Kc5 Qge3+ Rd4 Qf8 Nf6 Kg3 Bbc2 Qhg5 Bd3 Rh8 Ng4 Qh4 Bb4 Kh3 B3e2 Bcf7+ Kb5 Bh2 Bc4 Qeg3 Rd3 Qe8 Bd5 Qg8 Ba8 Bb3 Bd5 Qf8 Bf7 Be6 Bg8 Qf7 Bh7
3rN3/8/R1BR1r1Q/2pN2q1/1K1RB1pR/1Nn3Qp/Bb1Bn1bP/3kN2n w - - 0 1 illegal: No possible last move
bB1N1Nrq/1Bb2R2/B4pn1/nQR3QR/1NprKp1P/B5q1/4R2N/6k1 w - - 0 1 illegal: Other
5RQr/kq3R1n/b1P1nB1r/1R4p1/5R2/1BQKNpp1/Q3Bb1N/2q2B1Q w - - 0 1 illegal: Other
1K5b/nrRp2R1/PBpNQ1Bk/2Q1R3/1B1R1N1q/2Q4b/1pn3Br/Q1q5 w - - 0 1 illegal: No possible last move
2br3N/1N2B3/p1nNQ3/1Q3K1N/R2RBB1Q/P1p1q1Q1/1npqq2B/kr6 w - - 0 1 illegal: Other
2k1nbr1/2r2Rp1/4RBK1/QB2qRNQ/1pB1n1pQ/7B/2P2p2/1R1b1Q1N w - - 0 1 illegal: Other
QBr1k1N1/7q/nN5R/Q1pNpQK1/7R/pB2P1pN/B2bbB2/q2n2Q1 w - - 0 1 legal: proof: g4 d5 h4 g5 a4 b5 axb5 a5 c4 f5 gxf5 g4 cxd5 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bd7 Na3 Be6 Nb1 Bc8 d4 c5 Kd2 h5 Ke3 g3 Kf4 e6 b4 h4 b6 h3 g6 h2 b7 a4 f6 e5+ Kg5 a3 f4 Bg7 f5 Qc7 f7+ Kd7 f8N+ Kd8 f6 Na6 b8Q Qe7 b5 Nc7 b6 Qe8 b7 Qb5 d6 Rh6 f7 Qd7 d5 Qh3 d7 Ke7 d8N Nf6 Be3 Nb5 Qa8 Nc3 b8B Rh7 Nd7 Nb5 Bf2 Nd4 e3 Nf5 Nb6 Rh4 d6+ Kf8 d7 Ra4 Nc6 Nd5 Ne7 Nd6 d8Q+ Ne8 Bc4 Nc3 Ba2 Qh7 Nh3 Bg4 Qg1 Be2 Ng8 Nd1 Nc3 Rd4 Qc7 Rd8 Ncd5 Rc8 Rb1 Bh8 Rb4 Bg7 Qca7 Nc7 Qa5 Na6 Rh4 Bf6+ Kf5 Bd8 Rh6 Bc7 Kg5 Kg7 f8Q+ Kh8 Qd8 Kg7 Qd7+ Kf8 Qf5+ Ke8 g7 Bd3 Nge7 Bb5 g8B Be2 Ndf4 Bd8 Bgb3 Bc7 Nfd5 Bd8 Nc4 Bc7 Ng8 Bb6 Qae1 Ba5 Ncb6 Bd2 Rh4 Bc1 Qb4 Bd2 Qa5 Qd7 Rh6 Nb2 Nhf4 Qh7 Qgb1 Bc1 Rd1 h1Q Rd4 Qd1 Nh3 Bd2 Rdh4 Qg1 Qf1 Qh1 Qg2 Qa1 Qg1 Nd1
N1B2K2/1Qp2RR1/NP1Q1r2/1PB3Qr/1qN1n3/3b3N/1b3B2/n2b1N1k w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 a4 d4 Nc3 d3 Nd5 b3 Nb6 Ra7 Na8 b2 cxd3 b1N d4 Qd6 d5 Qb6 axb6 Nc3 Rh2 Ra6 Rh1 Nb5 axb5 Ra7 Ke2 Kf7 Kf3 h5 Ke4 e5 d4 h4 f4 h3 g4 h2 g6+ Kf6 d6 Bd7 Kd5 e4 g7 e3 g5+ Kf7 g6+ Kf6 Bh3 e2 Be3 e1Q Bf2 Be8 d7 Rh4 d8Q+ Be7 Qf3 Nh6 g8Q Ra5 g7 Qe2 Rf1 Nf7 Qg2 Ng5 Qd6+ Ne6 Bg4 Qd3 Nh3 Bg6 Rhg1 h1B Qc8 Qc3 g8N+ Kg7 f6+ Kh7 f7 Qe3 f8B Ng7 f5 Qf4 f6 Bc2 f7 Bd3 Qb7 Qh2 Bc8 Na6 Nf6+ Kh6 Nh5+ Bf6 Ng3 Ra4 Kc6 Nc5 d5 Ne4 Kd7 Ra3 Be7 Rh5 f8N Ra1 Ne6 Bb2 Nc5+ Ne6 Ke8 Rc1 Na6 Rc6 Qe5 Kg6 d6 Nd4 d7 Nc2 d8N Na1 Nf7 Rf6 Nd6 Kh6 Nc4 Kg6 Ng5 Qh4 Nh3 Qg4 Qh2 Bf3 Bec5 Bd1 Qd6 Qf4 Qg2 Qd2 Ke7 Qb4 Ke8 Re6+ Kf8 Kf6 Nf4 Kg5 Nh3+ Kh4 Ne3 Nf6 Nc4 Kg4 Qgd5 Ne4 Qg5+ Kf3 Re1 Re5 Nf1 Re6 Re2 Rg6 Rd2 B3c2 Rd5 Bd3 Re5 Rgh6 Re7 Rf6+ Rf7 B3e2 Rg4 Bd3 Bg3 Kg2 Bgf2+ Kh1 Qgd5 Re6 Rgg7 Rg6 Qg5 Rf6
3q3r/P4b2/2B2R1Q/k1n4K/N1R2B1P/2qQ2RQ/bnpn3R/1RN3B1 w - - 0 1 legal: proof: b4 b5 e4 e5 g4 h5 gxh5 f5 exf5 a5 bxa5 d5 a4 d4 c4 d3 a6 Be6 a7 Ne7 a5 Ng8 a6 Be7 Bxd3 Nc6 Bf1 Rb8 a8R Bc8 a7 Rb6 Qg4 Nb8 Qd1 Ba3 Nxa3 Rd6 Nb1 Rd5 cxd5 Qd6 Ne2 Qd7 Ng1 Qd8 Ke2 Kd7 Kf3 c5 Kg4 Kc7 d4 Kb6 f4 g5 d6 c4 d5 c3 h6 b4 d7 c2 h7 e4 f6 b3 f5 e3 d6 b2 f7 e2 f8Q e1N f6 Nc6 f7 Nce7 Ne2 Kb5 Bf4 Qb6 Bg2 Ba6 d8B Qg1 d7 Nf3 Kh5 g4 Qh6 g3 f8R Qd4 Bb6 Nf5 d8R Nd2 Rac8 Qc3 Nc1 Nd6 Rf6 N6c4 Rd3 Bb7 h4 Bd5 Bg1 Be6 Bd5 g2 Rg3 Kb4 Qg4 Bf7+ Qhg6 Kb5 Rh2 Kb4 Qh3 Kb5 Bge3 g1Q Bc6+ Kb4 Bb6 Qgd4 Rc7 Qd8 Bg1 Nb6 Rc8 Na4 Rc7 Ka5 Rc8 Qb4 Nc3 b1B Rc7 Bba2 Rb1 Nb2 Na4 Qc3 Rc8 Nh6 Rc7 Ng4 Rc8 Rg8 h8Q Ne5 Qh6 Rh8 Rc7 Nd7 Rc8 Bfc4 Qd3 Nc5 Rb8 Bg8 Rb4 Bgd5 Rc4 Bf7+
3NQ2N/3B2Q1/1K1p1n1R/r1B3q1/RQ1nNP1R/pbP2Q1q/7Q/k4b2 w - - 0 1 legal: proof: h4 b5 e4 f5 exf5 a5 d4 c5 dxc5 g5 c6 b4 hxg5 b3 axb3 Qc7 b4 Qb6 b5 Qd8 b6 Ra7 b4 Rb7 cxb7 Bg7 Bf4 Bd4 Bc1 Bc5 bxc5 Kf8 Nf3 Kf7 Ng1 Ke8 Ke2 Kf7 Kd3 h5 Kd4 e6 g4 a4 g6+ Kf6 g5+ Ke7 g7 h4 g6 Kf6 c6 h3 Kc5 Ke5 c3 h2 f6 Rh7 f7 Qe8 f8N Rh4 c7 Rh5 Qf3 Ne7 g8R Rh6 g7 Qd8 Ba3 Rh7 Rh8 Nd5 g8Q Qg5 Nd2 Nf6 Bh3 Nc6 b8Q Rh5 b7 Nd4 Ne4 d6+ Kb6 Bd7 c8Q Bb5 Bc5 Bf1 Qg7 Kd5 Rh6 Kc4 Ng6 Kb3 Nh8 Kb2 Qe8 e5 Ra3 Kb1 Ne2 Kb2 Nf4 Kb1 Rg1 h1B Ne6 Bg2 Ra2 a3 Nd8 Bh1 Bd7 Bg2 Re2 Ka1 Rh1 Bh3 Rb2 Be6 Rh4 Bf7 Rb4 Bb3 Ng3 e4 Ra4 e3 Ne4 e2 Qe5 e1Q Qh2 Bd5 Qa8 Qe2 b8Q Qee3 Qa5 Be6 Qb4 Bb3 Qg4 Nc2 f4 Qh3 Nc6 Bg2 Bg1 Qe5 Qe8 Bf1 Nd8 Qf5 Be3 Qg6 Qgg3 Ra5 Bc5 Qg5 Qf3 Nd4
1Q1nb2k/2P3R1/p3bKBq/5NBP/3pR3/1Q3Qq1/B1qB2rN/5B1N w - - 0 1 legal: proof: a4 c5 d4 b5 axb5 h5 dxc5 g5 b4 f5 e4 h4 exf5 a6 g3 g4 b6 Bb7 b5 Bc8 b7 Ra7 b6 Bg7 bxa7 Bf6 Be2 h3 Bf1 Bh4 gxh4 g3 Ba3 g2 Qg4 Nc6 Qd1 Nd4 Bb2 Ne2 Bc1 Ng3 hxg3 Rh5 Na3 Rh7 Nb1 Rh8 Kd2 Kf7 Ke3 Kg7 Kf4 d5 Kg5 e5+ f6+ Kh7 b8Q h2 a8B e4 c4 d4 f4 e3 f5 e2 h5 e1Q c6 Qc3 c7 Qd3 g4 Qh3 c5 Qg3 c6 Qe7 Qdb3 Qd3 Nc3 Qee2 f7 Qe6 f8B Nh6 f6 Qee4 f7 Qdf3 Nce2 Qed3 Bd2 Qh3 Kf6 Qde3 g5 Qd3 Ng3 Bf5 c8N Be4 c7 Bc6 Nd6 Bd5 Ndf5 Qe4 Be7 Qd3 f8Q Qc3 Re1 Qh4 Nf3 g1Q Re4 Qge3 Rg1 h1B Nh2 Qc2 Bd8 Bf3 Nh1 Qg3 Qfa3 Re8 g6+ Kh8 Be7 Rg8 g7+ Kh7 Bc6 Nf7 Be8 Nd8 Rg2 Be6 Bf7 Re8 g8B+ Kh8 Bg6 Qh6 Bf7 Bg4 Qf3 Bd7 Ba2 Rg8 Qab3 Rg7 Bg5 Ba4 Bb4 Be8 Bbd2 Rg8 Re7 Bh3 Rg7 Bg4 Re2 Bh3 Re4 Bg4 Ne3 Be6 Nf5 B8f7 Bge3 Qhf4 Bh7 Be8 Rf7 Qg1 Re7 Rg4 Bg6 Qh6 Bg5 Qf2 Rd7 Rg2 Rg7 Qg3
5Rr1/1qNB4/1Rb1rRr1/1B3K1B/P5b1/kNB1N1P1/n1BQ3Q/1bn2q2 w - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 cxd5 a5 exf5 a4 h4 a3 hxg5 Bg7 bxa3 Be6 a4 Be5 a5 Bg3 fxg3 Bc8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kb4 a4 e5 g6 c5 g7 b5 g5 h5 g6 c4 a6 c3 a7 h4 f6 h3 d6 c2 d7 h2 f7 Ne7 g8B Bb7+ d5 Na6 f8R Nc6 g7 Bc8 d6 Rh4+ Kf5 e4 Ne2 e3 Bb2 c1R Bf7 Rh6 g8B Rc4 Qd2+ Kb3 Bc3 b4 Bh7 Ne5 Na3 Nd3 Bh5 Qe7 Nc2 Bb7 d8N Rc6 d7 Rcg6 Ne6 Bc6 d8Q Qb7 Nc7 Nc1 Qh4 Re8 Rg1 h1B a8B Bhf3 Qh2 Rge6 Rg2 Rhg6 Rf2 Rb8 Rf6 Rbg8 Rb1+ Ka2 Bh3 b3 Ned4 e2 Ne3+ b2 Nb3 e1Q Bf1 Ka3 Bb5 Nb4 Rf1 Qa6 Bb7 Qa8 Bc8 Qb7 Bd7 Nba2 Kf4 R6g7 Bc2 Rg6 Kf5 Bd1 Rf4 Bdf3 Rd4 Qf1 Rd6 Bcd5 Rb6 Bc6 Ra1 Ne2 Re1 Nec1 Re2 b1B Rf2 Rg4 Rf8 R4g6 Kf4 Bd1 Rf3 Rd6 Ke5 Be2 R3f5 Bef3 R5f6 Re6+ Kf5 Bg4#
5b1r/1QB1rB1R/2P2NK1/1nQ5/N4P1n/RnqQ4/1q1BqBN1/B3b2k w - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Na6 b4 Nb8 b5 Ba6 Bg2 Bb7 Bf1 Bc8 b6 a5 b3 h5 gxh5 a4 Bb5 a3 Bf1 Ba6 Qd4 Bb5 Qd1 Ba4 bxa4 Qc8 Ke2 Qc7 Ke1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 f4 g5 c4 a2 h4 g4 a5 g3 h6 d6 a6 g2 h5 Qe7 b7 Nd7 b8B Bg7 h7 Ra7 h6 Qe6 c6 Ra8 a7 Qe8 c7 Qc8 c5 Bf8 Bc4 Qa6 c8Q Ne7 Nf3 g1Q Bc7 Ng6 Ne1 Qf2 Bd2 Nh4 Ng2 Rb8 a8Q Rb7 Bf7 Qae2+ Ne3 Qg3 Nc3 Qgf2 c6 Qfe1 Qa7 Nc5+ Kd5 e4 Ng2 e3 Na4 Nb3 Ke4 Qg3 Qc5 Ra7 Qb7 Qh2 Rc1 a1Q Rc3 Qh3 Qc2 Qb2 Qd3 Qg3 Rcc1 Qge1 Ra1 Qec1 Ra3 Qcc3 Bg6 Qd1 Bf7 e2 Rh2 e1B Bg6 Ke7 f6+ Ke6 f7 Qdc2 Bf5+ Kf6 Be6 Kg6 Bd5 Kh5 Rh3 Kg4 Bc4 Rg8 h8B Qd1 Bf6 Rh8 Bd4 d5+ Ke5 Qe2+ Kf6 Bg3 h7 Be1 Bde5 d4 Bd5 Bh6 f8N Bg7+ Kf7 Bh6 Nd7 Bf8 Qc2 d3 Bd4 Na5 Rh1 Kg3 Nf6 Nb3 Be6 Kf3 Qb1 Kg3 Bf2+ Kf3 Bde3 d2 Qd3 d1N Bc4 Qe5 Bd2+ Q5e3 Rh2 Nc3 Be6 Nb5 Rh1 Nf5 Kg6 Nh4+ Kh5 Ra8 Bf7 Re8 Rh2 Rg8 h8B Re7 Bg7 Rh8+ Kg5 Nf5 Rh7 Nh4 Bg1 Kg3 Bf2+ Kh2 Nd5 Qb1 Ba1 Qb2 Nf6 Qed4 Ng4+ Kh1 Kh5 Nf3 Nf6 Qdc3 Kg6+ Nh4+
2qNN2N/N4q1B/P2n2KP/4QQQ1/1k3B1r/2r1bR2/1n1B4/1rb1n1RN w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 g4 f5 e4 h5 gxh5 b4 exf5 Kf7 c4 Ba6 cxd5 Bb5 axb5 Ke8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 f4 e5 d4+ Kd6 h4 c5 b6 g5 b7 c4 h6 g4 f6 b3 Kf5 g3 a6 c3 f7 g2 h5 b2 h7 e4 h6 c2 Rh3 e3 Qe2 Ra7 Bd2 c1N Kg6 Qh4 f5 Qe1 f6 Qh4 Na3 b1R Rf3 Be7 f8Q Rb4 f7 Nc6 b8B+ Rc7 Nh3 g1B Nf2 Nf6 Nh1 Na5 Qg8 Ne4 f8Q Ra4 Qf5 Qf4 Qb5 Bd8 Bd3 e2 Bc2 e1Q Nc4+ Ke7 Bd3 Be3 Nd6 Nc4 Ne8 Nb2 Bb1 Rc3 Qa5 Qh2 Bf4 Qf1 Qe5+ Kd7 d6 Kc6 d7 Qhh3 Qf7 Bc7 Qff5 Ncd3 Qg5 Rf8 h8N Ne1 Bd3 Nd6 d8N+ Kd7 d5 Rf5 Bg3 Rh4 Nc6 Rff4 Bc2 Rb4 Na7 Bd8 Bf4 Qc4 Qg2 Bg5 Qf1 Qb3 Qd3 Rb6 Qdf5+ Kd8 Qf7 Ndc4+ d6 Ned3 Bc1 Na4 Qd4 Qc8 Kh7 Be7 d7 Ba3 Rf1 Nd6 Rf3 Qbc4 Qfg7 Qf7 Bd2 Bb2 Rg1 Bc1 Qe4 Ne1 Qae5 Rb1 Qg6 Nb2 Qgh5 Qfc4 Qg3 Qe6 Bg6 Qd5 Qhf5 Qe6 Qgg5+ Qe7+ Ng7 Kc7 d8N Qf6 Ne8+ Kb6 Rgf1 Qfe6 Rg1 Qd5 Kg7 Kc5 Bh7 Kb4 Kg6 Qf7+
1R1r1q2/KQ1QN3/B1b1P3/1n1nN2n/7r/BP2Q3/R1B1R1nk/Bnb4B w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 a5 g4 b5 gxh5 b4 a3 a4 Qxa4+ Qd7 Qd1 b3 Qxb3 Qa4 Qd1 Qd7 b3 Qd8 Kf2 Kd7 Ke3 g5 Kd4 f5 h4 f4 e4 c6 a4 f3 a5 f2 d6 Ke6 Kc5 g4 d4 g3 d5+ Kd7 h6 g2 a6 Rh7 a7 Nf6 e6+ Ke8 e5 Rh8 e7 Kf7 e8B+ Kg8 h7+ Kg7 h5 Rg8 h8B+ Kh7 h6 Bb7 e6 Rg4 Rh2 Nh5 Nc3 Rh4 Ba6 f1N Qf3 Nd2 Ra2 Nb1 Qe3 Qe7 Kb6 c5 d7 c4 d8Q Nc6 d6 Nb4 d7 Bc6 Nd5 c3 Bb2 c2 Ba3 c1N Qb8 Ncd3 d8Q Ndf4 Nf3 g1N Qd7 Ng2 Qbb7 Ne2 Ne5 Rd8 a8B Nd4 Ka7 Qg7 Ne7 Nd5 Nf5 Bb4 Ne7 Qf8 Bf6 Bd2 Bg7 Nhf6 Bh5 Bc1 Bd1 Nh5 Bc2+ Nf5 Nd3 Nd6 Ba1 Ne1 Re2 Ng2 Ng8+ Kg6 h7 Kf5 h8R Kg4 Ne7 Qf3 Rg8+ Kh3 Ne5 Kh2 Rf8 Rc8 Re8 Qf8 Rd8 Rc7 Rb8 Rc8 Qb5 Re8 Qbb7 Rd8 Qeb6 Ndf4 Re1 Ne3 Qbc8 Ba4 Bh1 Neg2 Re2 Nd5 Qe3 Bc6 Qcb7 Nb5+
2RrQ3/2P1K1Pb/1br2R2/4Qq2/n1NR3B/bBRb3N/2N3Rq/2B2k1n w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 c5 exf5 b4 d4 b3 dxc5 Nh6 axb3 Na6 b4 Ng8 b5 Nb8 Ke2 Kf7 Kf3 e5 Ke4 h5 Kd5 h4 g4 d6 f4 h3 c4 e4 a6 h2 f6 Kg6 a7 e3 f7 e2 f5+ Kg7 g6 Kf6 c6 e1B g5+ Ke7 c5 Na6 c7 Qe8 g7 Rh5 f6+ Kd7 b6 Bg3 b7 Bh4 b8B Nh6 g8R Bf2 Ra3 Ng4 Nh3 Rh6 g6 Be7 g7 Qf8 Rg1 h1Q+ Rg2 Qh2 Bc4 Bg1 Qc2 Nf2 Qb2 Nh1 Qe5 Be3 Rc3 Rg6 Ke4 Kc6 Bb3 Kb5 Kd5 Bf5 c8R Bd3 Ke6 d5 c6 Bb6 Na3+ Kb4 Bc7 d4 Bd8 Rb8 a8N Nc5+ Kd5 Bd6 c7 Na4 Nc2+ Kb5 Rh8 Ba3 Ke6+ Qc5 f8Q Rh6 Qed6 Qf5+ Ke7 Rg6 f7 Rf6 Rh4 Rg6 Ba2 Rh6 Rb3+ Kc4 Qe8 Rg6 Rb4+ Kc3 Qe5 Rc6 f8R Bf1 Rg1 Kd3 Bb3 Be2 Rf6 Bf1 Qd6 Ke2 Rc4 d3 Rhd4 d2 Rc3 d1B Rg2+ Qf2 Na1 Bc2 Qc5 Bh7 Nc2 Ba7 Nb6 Ra8 Rg1 Qf5 Nc4 Bb6 Qd6 Bg2 Qc5 Be4 Rg2+ Kf1 Qd6 Bd3 Qc5 Rd6 Qe5 Rc6+ Kf7 Ra5 Be7 Qf2 Rff4 Rb5 Bh4 Rd5 Rf6 Rdd6 Kf8 Qf5 Ke7 Rd8+
n4k2/Q1bb1BN1/1rR2bR1/2n5/B2R1QPP/2n5/K1R1RBq1/N1N3bq w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 fxe5 h4 axb5 Nh6 g3 Ng8 Nh3 g5 Ng1 a5 h3 g4 gxh4 g3 Ra2 Ra6 Ra3 Rg6 Ra1 Rg4 hxg4 Qd7 Na3 Qd6 Nb1 Qd8 d4 f5 Kd2 c5 Kc3 f4 Kb3 c4+ Ka2 a4 e4 a3 b4 c3 e6 g2 e5 f3 d6 c2 d5 f2 d7+ Ke7 b6 Rh7 b5 Ba6 b7 Nf6 b6 Bh6 d6+ Kf8 e7+ Kg7 e8N+ Kg8 e6 Qc8 d8R Rd7 e7 Bf4 Qd2 Nh5 Rh2 Qc5 Ne2 g1Q Rc8 Qb4 Rc6 Qe4 Ng7 Nf6 e8B Qeg2 Bf7+ Kf8 Bb2 c1B Bd4 Rd8 d7 Bc7 Qf4 Ne4 Nd2 Bb5 Nb3 Be3 Rac1 Q1h1 Na1 Na6 b8Q Nec5 Qa7 Rb8 b7 Ba4 Rc2 Bb5 Kb1 a2+ Kb2 Ba4 Nc1 Bb5 Be2 f1N Bd1 Bg1 Bf2 Ng3 Re2 Nge4 Ba4 Nc3 Rg6 Bc6 d8R+ Be8 Rd4 Bd7 Rc6 Bd6 Ka3 Nc7 Kb2 Na8 Rc2 Rd8 b8R Bc7 Rbb6 Rb8 Rg6 Rb7 Ka3 Rb8 Rbc6 Rb7 Rh3 Rb2 Re3 Rb6 Ree2 N3e4 Nab3 a1B Ka2 Bb2 Na1 Bc3 Rd1 Bf6 Rd4 Nc3+
3nN1q1/2P1n2R/RB1Q1rNR/1kb3QB/q3Q3/b1b3b1/2nQ1N1P/3Q2K1 w - - 0 1 legal: proof: d4 a5 g4 d5 a4 e5 e4 h5 gxh5 b5 axb5 c5 dxc5 d4 f3 Be6 Bd2 Bd5 exd5 e4 Bc1 e3 Ra4 Ra6 Ra2 Re6 Ra1 Re4 fxe4 Qe7 Bh3 Qd7 Bf1 Qd8 b4 Kd7 c4 f5 d6 g5 h6 d3 c6+ Ke8 h7 f4 b6 a4 b7 a3 e5 f3 d7+ Ke7 c5 e2 Kf2 g4 c7 a2 c8Q d2 b5 Qc7 d8Q+ Kf7 c6 Ba3 e6+ Kg7 b6 Qe7 Nc3 Kf6 Ne4+ Ke5 Nh3 e1B+ Kg1 g3 Qcd7 g2 Nf4 Qh4 e7 Qg4 e8N Qh5 Nf2 Qg6 Be2 Ne7 c7 Rf8 h8R Rf7 Rh6 Nbc6 b8Q Qg8 b7 Rf5 Qd3 Rf6 Ng6+ Ke6 Q8d4 Nd8 Qb6+ Ndc6 Qc4+ Kd7 Qe4 Nd8 Qb2 Bb4 Qa8 Ba3 Qeb4 Kc6 b8Q+ Nb7 Qf4 Kc5 Rh7 Nd8 Rb1 a1B Qae4 Ndc6 Qa2 Bc3 Rb6 Nd8 Qc8 Bab4 Qd7 Ba3 Qdb3 d1N Qad2 Ne3 Qbd1 Nc2 Qh6 Be5 Qdg5 Bc3 Qgd2 Bg3 Ra6 Qc4 Q7d6+ Kb5 Bb2 Bcb4 Bd4 Bc3 Nd3 Qb3 Bb6 Qa4 Qhg5+ Bge5 Kf2 g1B+ Kf1 Bgd4 Rg1 f2 Bh5 Bdc5 Kg2 f1Q+ Kh1 Bcb2 Nf2 Qfc4 Rg2 Bbc3 Kg1 Qg8 Rg4 Bg3 Rh4 Nc8 Be2+ Qgc4 R4h6 Ne7 Bh5 Qg8
N1BR1bQ1/2rP1Rb1/1KQ4b/1P2B1bk/1n2RRr1/1B2N1R1/3b2Qn/7n w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nc6 f6 Rb8 f7+ Kd7 axb3 Ra8 b4 Nb8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 f5 g5 b6 Ba6 h3 Bd3 f6 Bf5 gxf5 g4 Bc4 g3 Be2 Qc8 Bf1 Qa6 Nf3 Qc4 Ng1 Qg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 Ke2 c5 Kd3 a5 Kc4 h5 Kb5 e5 b4 c4 d4 a4 b7 a3 g5 e4 d6 c3 d5 a2 g6 e3 g7 h4 Ne2 g2 Qa4 g1B Nd2 h3 Nf4 e2 Ng2 e1B Nc4 c2 Nb6+ Kd8 d7 h2 Bb2 c1B Be5 Bd4 Ne3 Bfc5 Bh3 Bf8 Rg1 h1N Rg3 Ne7 g8B Ra6 Na8 Nbc6 b8Q+ Nc8 Qb7 Bec3 Bg4 B1d2 Re1 a1B Qa2 Bc1 Qg2 Rh4 Re2 Nb6 Re1 Na5 Qc6 Ra7 Bh3 Rb7 Ka6 B3d2 b5 Bh6 Re2 Nbc4 Re1 Nd6 f8Q+ Ne8 f7 Rc7 f6 Bc5 Be6 Bd6 Kb6 Rg4 Qg7 Bac3 f8R Bdb4 f7 Ke7 d8R Nf6 Bc8 Bg5 Qb7 Nc6 Re2 Bba3 Qh7 Nb4 Qc6 Rd7 d6+ Ke6 Bb7 Rc7 d7+ Ke7 Bc8 Bh6 Nf1 Bdg5 Qh8 B1d2 Re4 Bcb2 Qc2 Ke6 Qc6+ Kf5 Ne3+ Kg6 Bh7+ Kh5 Qg8 Ba1 Bf5 Rf4 Be6 Ng4 Bb3 Bac3 Rfe8 Nh2 f8R Rg4 Re7 Bcb2 Rff4 Ba1 Ref7 Bac3 Bd6 Bcg7 Be5 Nd3 Ba4 Baf8 Bb3 Nb4
1q3Q2/R1B5/1N1qP3/1K1B2Rr/b2PN2r/NN3bRr/Qq6/2qNQ1bk w - - 0 1 illegal: No possible last move
QbK2R2/2B1N3/2r3qr/QR4P1/1r1QrbNN/1r5P/2b1b3/N1kN1B1B w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 fxe5 d5 axb5 g4 c4 Na6 cxd5 Ke7 Qa4 Kd7 Qd1 Ke8 Na3 h5 Qa4 Ne7 Qc4 Nc5 Kf2 Ne4+ Ke1 Ng6 Qc5 Nf4 Nb1 Ng5 hxg5 h4 Qc2 h3 Qb3 h2 Qd1 Nh3 gxh3 Rh5 Ra6 Rh7 Ra1 Rh8 Kf2 Ke7 Kg3 c5 Kf4 f5 e4 a5 d4 a4 b4 a3 b6 g3 b7 g2 b8N c4 b5 c3 d6+ Ke6 b6 c2 b7 a2 d5+ Kf7 d7 Kg6 d6 Bh6 e6 Bf8 Ke5 f4 e7 f3 Ke6 f2 e8B+ Kh7 e5 Ra5 Na6 Ra3 b8Q Rf3 Nb4 Bh6 Qd4 Bb7 Bf4 c1B Nc3 Qb6 d8Q Bf8 Kd7 Be4 e6 Bc2 Rb1 a1R e7 Ra4 Nd1 Rb3 Nf3 g1R Nh4 Rg4 Kc8 Bg7 d7 Be5 Qb7 Bb8 Qa8 Qg6 Bc7 Bf4 Bf7 Ra6 e8N Rc6 Nf6+ Kg7 Bd5 Rh6 Rg1 h1R Qa5 Rh2 Bh1 Kf7 Rg3 Ke6 Rf3 Rhg2 Na2 Rb4 Nc1 Rg1 Nb3 R1g3 Ba6 f1B Na1 Be2 Qf8 Rbc4 Rb5 Rb4 Rf2 Re3 Qd8 Rgg3 Ng4 Re4 Q8h8 Rgb3 d8N+ Ke7 Nb7 Kf7 Nd6+ Ke6 Ndf5 Rc5 Qdg7 Kd5 Ne7+ Kc4 Qgg8+ Kd3 Rf3+ Kd2 Qd4+ Kc1 Rf1 Bh2 Rf8 Bf4 Qgd5 Rbc3 Qa8 Rc6 Rbf5 Bf3 Bf1 Be2 Rb5 Rcb3
1Q2RR1q/rq4n1/1B1n4/N1BR1r2/1R1P3k/QPq5/q4NK1/2Qr1rRB w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 d4 Kf7 d6 c5 d7 e5 g5 a5 b3 h5 b6 h4 b7 e4 Be3 h3 Na3 g2 Kf2 h2 Nc4 a4 Nh3 g1R Bg2 a3 Bd2 a2 Ba5 Nc6 b8Q e3+ Kg3 e2 Nf2 Qf8 d8R Rf1 Rg1 e1R Bb6 Nce7 Na5 Ra7 Bb7 Nh6 g6+ Kg8 f7+ Kg7 Ba8 Kf6 g7 h1Q g8R c4 Be4 Qe8 f8B c3 Rg5 Qd7 Re8 c2 Rc1 Qh5 Bh1 a1Q Kg2 Nc8 Bb4 Qa2 Be7+ Kf7 f6 Rf8 f5 Qc7 Qd2 Rd1 Qe3 Qb2 Ra1 c1Q Ra4 Q1c3 Qc1 Qa2 Rc4 Ng4 Ba3 Qh4 Ra4 Qh8 Rh5 Nh6 Bb4 Kg8 f7+ Kh7 f6 Qb7+ Rd5 Nf5 Qd2 Kg6 Qc1 Rg8 f8Q Rg7 Qc5 Ncd6 f7 Rh7 f8R Kh5 Ba3 Kh4 Bb4 Ng7 Qa3 Qe1 Qcc1 Qc3 B4c5 Rh5 Rb4 Rf5
RK1Q2B1/2R2N2/N1P1N2Q/q1NbB1P1/1Q3q1N/n4n1r/p2b2b1/1r3Bk1 w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 a4 f5 axb5 c5 exf5 c4 d4 c3 h4 c2 hxg5 Bh6 Be3 c1Q Bd2 Qc4 Bc1 Qc5 dxc5 Bf8 Kd2 Kf7 Kd3 h5 Kc4 e5 b4 a5 f4 h4 g4 h3 b6 a4 Kb5 h2 d6 e4 f6 Kg6 b7 e3 c6 e2 d7 e1Q f7 a3 f5+ Kh7 g6+ Kg7 g5 Qee7 Bb2+ Qf6 Be5 Rh3 Nf3 Ra6 Nh4 Bd6 f8N Qe8 d8N Nd7 b8N Nb6 Nf7 Nc4 Nd2 Nh6 Ne4 Qd8 Nc5 Ng4 Qd2 Ra4 Nba6 Be6 Qf4 Bd5 Nfe6+ Kg8 g7 Kh7 Qd4 Bc7 Qd2 Ba5 Qb2 Qc7 Ra2 Qfd8 f6 Bg2 Ra1 Qd2 Qd4 Qf4 Qd8 Qa7 Nf5 Kg6 g8B Kh5 Nh4 Nd2 Ra2 Ne3 Ra1 Kg4 Ra2 Bc7 Ra1 Bd6 Ra2 Qa8 Kb6 Kg3 b5 Kf2 Ra1 Be7 Kc7 Nc2 b6 Nf3 b7 Rb4 b8Q Rb1 Qb4 Qa7+ Kc8 Qb6 Ra2 Qa5 Kb8 Bf8 Nh6 Bg7 f7 Bf6 f8Q Bh8 Rb2 a2 Nf7 Bf6 Rb3 Na3 Qh6 Bg7 Rd3 Bf8 Rd7 Be7 Rg1 h1B Rc7 Bf6 Be2 Bg7 Rd1 Bf6 Bf1 Kg1 Rdd7 Bh8 Ra7 Bg7 Ra8 Bh8 Bc7 Bc3 Be5 Bd2 Rc7 Nh2 Bg7 Bd5 Bc3 Nf3 Be5 Bg2
Q1QnqKn1/nb2B1P1/1R3P2/RQ1b2Bp/N5B1/3RNr2/r2Bk3/3n3B w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 h4 b4 hxg5 b3 axb3 Bf5 b4 Bg4 b5 Bc8 Na3 e5 Nb1 f5 fxe5 f4 e6 f3 e3 Bg7 Ra3 Be5 Ra1 Bf4 exf4 Qf6 Nh3 Qe7 Ng1 Qd8 Kf2 Ke7 Ke3 Kd6 Ke4 Kc5 Kf5 Kd4 b4 c5 g4 a5 d6 h5 Kg6 c4 Kg7 f2 d7 a4 e7 a3 e8Q a2 f5 c3 b6 c2 b7 Ra3 g6 Qg5 d8B Ra7 b5 Bd7 b6 Bc8 Nc3 Qe3 g5 Qe1 Qb5 Qe6 Be7 Bd7 Rh3 Qc6 Nd5 Rh6 Qg4+ Ke5 Rd3 Ra8 Bg2 f1B Kf8 Be2 g7 Bf1 g6 Ra4 Ne3+ Qc5 Ne2 Nc6 b8R Be6 b7 Bd5 Bh1 Na7 Nc3 Bfg2 f6 Qc6 Qc8 Kf4 Bb4 Ra6 Na4 Kf3 Bc3 Ke2 Bb4 Ne7 g8B Bgf3 g7 Rg6 Bh7 Rg3 Bf5 Ng8 Bg4 Qe6 Ra8 Qd7 Rb1 a1N b8Q Nb3 Be7 Nc5 Qb8b7 Nc6 Ra7 Qe6 Qba8 Nb7 Rbb3 Nbd8 Rb2 Rb6 Ra5 Ra6 Nc4 Rb6 Qba6 Nb7 Bd6 Be4 Bb4 Bg6 Rd8 Na7 d4 Be4 d5 Qc6 Rd7 Nd8 Bg5 Qe6 Rb3 c1N Bbd2 Nd3 Ne3 Qe5 Rb1 Rb2 Q6c6 Rc2 Rb6 Nb2 Rd6 Nd1 Qb5+ Bd3 Rd7 Ra2 Rdd6 Bc4 Rd7 Nf7 d6 Qe4 Rd8 Qc6 d7 Qe6 Bf5 Bb7 Bg4+ Rf3 Re8 Bc6 d8B Bb7 Re7 Qe5 Rd7 Qe4 Rd3 Bcd5 Ng2 Qg6 Be7 Nd8 Ne3 Qe8+
BQ1KN2Q/r5R1/2Q5/6b1/3N1qP1/1QP1pRQ1/NBqnRq2/nk1nr3 w - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 h4 g5 fxg5 Bb7 h5 Bd5 g3 Bf7 g4 Bg6 hxg6 Qb6 Nh3 Qc7 Ng1 Qd8 Ke2 a5 Kd3 e5 Kc4 Ke7 Kd5 h5 b4 d6 g7 a4 g6 Kf6 b6 e4 c6 e3 b7 a3 c7 h4 c8Q h3 b5 a2 b6 h2 Nc3 Nd7 Kc6 Ke5 b8Q Rh4 f6 Be7 b7 Qf8 Kc7 d5 f7 d4 Bb2 d3 Nge2 d2 Nd4 Bg5 Bg2 Ngf6 g8N Nc5 g7 Na4 Rf1 h1Q Rf3 Ne4 Nf6 Qf1 g8R Rh1 Ne8 Ra7 Rg7 Qf2 Qe1 Qb4 f8Q d1Q Qh8 Nd2 Rb1 a1N Na2 Ke4 c3 Kd3 Rc1 Qb5 Rc2 Qf5 Qd7 Qf8 Qc6 Qf4+ Kd7 Qc1 Qd1 Re1 Bh1 Qe4 Qg3 Qf4 Kc8 Qb1 b8Q Qc1 Ba3 Qb2 Qb1 Qc1 Q1b3 Nb2 Bg2 Nd1 Bb2 Nb1 Re2 Nd2 Qf6 Qc2 Kd8 Qg1 Rf1 Qgf2 Ba8 Qh2 Rf3 Qh4 Qg2 Qf2 Qg3 Qb1 Qe6 Qc1 Nb3 Kc2 Nd4+ Kb1 Qeb3 Re7 Qfh6 Qc2 Qc6 Ra7+
QNR3b1/q1r4B/1R2B2B/P4qR1/2K2Q2/3PBnnb/3pbN1B/k2n3N w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 Bh6 d4 Bf8 Be3 d5 Qd2 b5 Rh3 Bg7 Bf4 Ra7 Be3 Rd7 Ke2 Be5 Bf4 Bd6 Qd1 Bc5 dxc5 d4 Bc1 Rd6 Rh1 d3+ Kf3 d2 Ke2 Rd3 cxd3 Qd4 Qa4 Qd7 Qd1 Qd8 a4 Kd7 g4 Kc6 f4 Kd5 c6 Kd4 f6 h5 f5 e5 f7 b4 f8B c3 f6 b3 f7 e4 g6 c2 c7 e3 g7 b2 g5 h4 a6 h3 a5 h2 a7 Rh6 a8Q Rg6 Bh3 Qf6 Bc5+ Ke5 f8B Nc6 Nc3 b1B Qf1 Nb8 Ne4 Qf7 Nf2 Ba2 B1a3 c1Q Be6 Qf5 Ngh3 Na6 Rg1 h1B Rb1 Nf6 g8N Nh5 Rb6 Rg7 g6 Nb4 Ne7 Nc2 Rg5 Bd7 Bd6+ Kd4 Bac5+ Kc3 c8R Qa3 Bh2 Ng3+ Kd1 Bad5 Nc6 Bhf3+ Qe2 Qa4 Nh1 Qd4 Nb8 Bb3 N3f2 Kb2 Rb7 Re7 g7 Ka1 g8B Bh5 Qf3 Bg4 Bb4 Qa7 Bh7 Bh3 Qf4 Bda4 Rc5 Rc7 Bh6 Be8 Rb6 Bc4 Bd7 Bg8 Be6 Bc6 Rc4 Bcg2 Bc5 Bf1 Qh4 Ne1 Qf4 Nf3 Kc2 e2 Kb3 e1N Kb4 Be2 Be3 Nc2+ Kb3 Rg7 Rc8 Rc7 Bc5 Ne3 Kb4 Nd1 Be3 Rf7 Kc4 Rc7+
kb1r2bR/2r2r1n/Bp1N1R1R/NqP1b1KP/1R4QB/3Q4/3R4/1BQq4 w - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 f5 g4 h5 gxh5 b6 d4 f4 dxc5 f3 a6 Nh6 a5 Kf7 a7 Ng8 a6 Nc6 exf3 Na5 f4 Ke8 f5 Nb7 axb7 Rh7 Qd4 Rh6 Qd1 Rh8 Ke2 e5 Ke3 g5 b8R d5 f4 Kd7 c4 Kc7 h4 e4 f6 g4 c6 g3 f5 d4+ Kf4 d3 c5 g2 f7 e3 h6 d2 f6 e2 h7 e1Q Ba6 Qd5 Ra4 Qf3+ Kg5 Qff1 Ne2 g1B Na3 Qef2 Ng3 Qc4 Nf5 Ne7 Rb4 Qe6 Nd6 Qf3 Nac4 Bd4 Na5 Bd7 Rd8 Rc8 a8B Kb8 c7+ Ka7 Be4 Qc4 Bb1 Qb5 Qg1 Bg7 f8R d1R f7 Ka8 Rh3 Rg8 h8R Ng6 Bd2 Bf2 Be1 Be5 Qg3 Qh1 Qd3 Bfg3 Rh2 Rg7 h5 Rg8 Rd2 Be6 Rh6 Rg7 Rfh8 Bd5 f8Q Bg8 Qff1 Rf7 Rf8 Bh2 Bh4 Bhg3 Re8 Nf8 Ree6 Rd8 Ref6 Re1 Rg4 Re4 Qc1 Qd1 Rgf4 Rd4 Rg4 Rd5 Rb4 Bh2 Ndb7 R5d7 c8Q+ Bb8 Nd6 Rc7 Qe6 Be5 Qg4 Nh7+
2NN1BBR/1p1K2NQ/r4Nn1/BPrR1n1n/1q5b/k1N2r2/4P3/2RQq3 w - - 0 1 legal: proof: b4 d5 a4 a5 bxa5 h5 c4 e5 cxd5 e4 g4 e3 gxh5 Nf6 fxe3 Bh3 e4 Bd7 e5 Bb5 axb5 Ng8 Kf2 Ke7 Kg3 f5 Kf4 c5 h4 c4 d4 c3 h6 c2 h7 g6 e6 Kd6 a6 Nd7 a7 Nh6 e7 Ne5 e8N+ Kd7 d6 Rb8 a8N Qe7 d5 Neg4 h5 Qg7 Nf3 Rc8 Nh4 Rc6 Bg2 Qb2 Nc3 Qb4+ Be4 Rb6 Ba3 Be7 Rc1 Rf8 h8Q Ne5 Qh7 Ra6 Rh3 Rf7 Rd3 Rf6 Kg5 f4 Nf5 f3 Nfg7 Nf5 h6 f2 Rd4 f1N Nb6+ Kd8 d7 N1g3 Bd3 Nh5 Nc8 Rf8+ Nf6 Kc7 d8N Rf7 Rb1 c1R Bc4 Rc2 Rc1 Rf8 Nd6 Kb6 Nc8+ Ka5 d6 Rf7 d7 Rf8 Ne4 Ka4 Bg8 Rf7 Rd5 Kb3 Qf1 Rc5 Qd1+ Ka2 Bb2 Rf8 Bd4 Ka3 Nc3 Nd3 Be5 Ndf4 Bd6 Rf7 Nde6 Rf8 d8B Rf7 Kg4 g5 Ba5 Bd8 Bf8 Ng6+ Kf3 Be7 Nd8 g4+ Kf2 g3+ Kf3 Nd4+ Kg4 g2 Kg5 Ne6+ Kf5 g1Q Qc2 Qe1 Qd3 Nh8 Qd1 Nd4+ Ke5 Nc6+ Ke6 Ng6 Kd7 Nd4 Ng4 Rf3 Nf6 Ngf4 Qe4 Nf5 h7 Ng6 h8R Rf4 Qh1 Rf3 Qh3 Nhf4 Qh7 Nh5 Ng4 Bg5 Nf6 Bh4
4N1b1/1P1B2B1/N1N3RK/Rnp1B2P/5QQR/N3qr1r/3b1br1/b3k1N1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 d5 exf5 b5 a4 d4 axb5 d3 cxd3 a4 d4 Nc6 d5 Na5 bxa5 Ra6 Bc4 Ra7 Bf1 Ra8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kb4 d4 c5 h4 e5+ f6 g6 f4 a3 f5 a2 b6 e4 a6 e3 h6 e2 a7 e1B d6 Bb7 d5 Qb8 d7 Bd6 d8N Bc7 d6 Ba6 d7 Bh2 h5 Qd6 h7 Bf2 f7 Qe7+ f6 Bb8 f8R Bd4 b7 Nh6 Ne6 Bbe5 d8N Nf5 Nc7 Bf2 Bf4 Nd4 Bh3 Nb5 Rg8 Bc3 Bd7 Qe3 f7 Bd2 Kh6 g5 f8Q g4 Na3 Kc3 Ne8 g3 Rh4 g2 Rg6 Rg8 Qd6 Rf8 Nc6 Rd8 a8N Rf6 Nh3 g1R h8B Rg2 Nac7 Ra8 Qg4 Rd8 Rh1 a1B Bg7 Ra8 Qe5+ Kd3 Qeg5 Rf7 Bh2 Rf3 Bhe5 Ke2 Ng1+ Ke1 Q5f4 Rd8 Bf5 Rd3 Bd7 Nd6 R1h2 Bc4 Na6 Bg8 R2h3 Nb5 Rg3 Rh2 Rg2 Rfh3 Rg3 Rg2 Rf3 Qe2 Re3 Rc3 Re4 Rcf3 Ra4 Qe4 Ra5 Qe3
n2QNnB1/1b1Q2bR/kN5q/r7/1B2PnQq/3npP2/Q2K2R1/1RB2Q2 w - - 0 1 illegal: No possible last move
1R2N3/1qB1k3/NN1b2rn/R5pB/3PqBQ1/3qQ3/B1BKP1q1/1Q1n3r w - - 0 1 legal: proof: c4 b5 h4 g5 f4 f5 g4 d5 cxd5 e5 gxf5 b4 fxe5 b3 h5 Bd7 axb3 Ba4 b4 Bd7 b5 Be6 Rh2 Bf7 Rh1 Bg6 hxg6 Kd7 Bg2 Ke7 Bf1 Ke8 b4 c5 d4 a5 e6 h5 b6 c4 d6 a4 g7 c3 f6 c2 e7 h4 b7 h3 d7+ Kf7 e8B+ Ke6 f7 h2 b5 a3 b6 a2 Na3 Bb4+ Qd2 Rh7 f8Q Ra4 Bh3+ Kd5 Qf4 Bc3 Bh5 Ra7 Nf3 Ra4 Ne5 Kd6 Bf5 Ke7 Nb5 Nc6 b8N Ra8 b7 Nh6 g8B Qc7 Qg4 Ra6 Nc4 Na5 Nb6 Nc4 Nd6 Ne3 Ne8 Nd1 Bb3 Bb4 d8B+ Kf8 Rf1 Bd6 Qe3 h1Q Kd2 Qe4 Bbf7 Qd7 Bc7 Ke7 Rb1 a1Q Ba2 Qb2 Bfg6 Qb3 Rf5 Rh8 Ra5 Qf5 Rb2 Qf2 Bf5 Qg2 Bfg6 Rf8 Bh7 Rf1 B7g6 Rh1 Bh7 Ra7 Na6 Qd5 b8Q Qb7 Qbc8 Ra8 Qcf5 Rb8 Nf6 Rg8 Ne8 Rg6 Rbb5 Qe6 Qfd3 Qe5 Qb3 Qe6 Qb1 Qee4 Na8 Rg7 Qeg3 Qc8 Rb8 Qg6 Nb6 Qcb7 Q3f3 Qe6 Kd3 Qed5 Bd2 c1Q Bf4 Qa3+ Kd2 Rg8 Be4 Rg6 Bc2 Qe4 Qe3 Qd3+
q2q2q1/3n3k/1r1RQ1RP/1R1NB2N/p6B/4n1Kb/P2qB1BB/2b1N1Q1 w - - 0 1 legal: proof: c4 b5 b4 a5 d4 f5 e4 d5 exf5 c5 bxc5 h5 cxd5 h4 c6 Ra7 g3 Rd7 gxh4 Rd6 h5 Rg6 Be2 Rg3 Bc4 Rc3 Bf1 Rc5 dxc5 Qc7 Nh3 Qd6 Ng1 Qd8 h4 Kf7 f4 e5 Kf2 g5 h6 e4 c7 e3+ Kg3 a4 f6 Kg6 h7 b4 h5+ Kh6 d6 e2 f5 b3 f7 b2 c6 Bb7 c8B Nf6 c7 Na6 d7 Rg8 h8B Bc6 Bb7 Ba3 f8N Ng4 c8Q Nc7 f6 Nh2 f7 Qf6 d8B Bf3 Nd7 Nd5 f8R Qe7 Be5 Bg4 Nc3 b1Q Rf6+ Rg6 Nf3 Nb6 Nd5 Qe4 Rg1 Bh3 Bcf4 Ng4 Rb1 Kh7 h6 Bc1 Ne1 Ne3 Rd6 g4 Rb5 Qe8 Bh4 Qd8 Ba6 Qh1 Bg2 Re6 Nc5 Nd7 Qc6 Rf6 Ne6 Rg6 Ng7 Rf6 Nh5 Re6 Nd3 e1Q+ Nf2 Qc3 Nd3 Qd2 Ne1 Rg6 Rb8 Rf6 Be2 Re6 Rb5 Rg6 Kf2 Re6 Bh2 g3+ Kf3 Rg6 Kf4 Re6 Bgf3 g2 Kg3 Nf8 Qe8 Rf6 Qe6 Nd7 Rf1 g1Q+ Bg2 Rf4 Rf2 Rb4 Rf6 Rb1 Rg6 Rb4 Ra5 Rb6 Rb5 Qf1 Qb3 Qf7 Qb1 Qfg8 Qa1 Qf1 Qd4 Qff8 Qdg4 Qa8 Qd4 Qfd8 Qc5 Nc4 Qg1 Ne3
1BQq4/2NnQ2R/PQ1Q2KP/3q4/3R2r1/nQq2BNp/3r1kb1/2R2N1q w - - 0 1 legal: proof: c4 a5 h4 h5 e4 g5 b4 d5 bxa5 f5 cxd5 Na6 exf5 Bg7 g3 Bf6 hxg5 h4 g6 h3 Ne2 Nb8 Ng1 Bh4 gxh4 Rh5 Ne2 Rh7 Ng1 Rh8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 f4 e5 a4 b5 d4+ Kb4 a6 c5 a5 c4 a7 c3 g7 c2 d6 Qc7 d7 Rh5 d8R Qc5 d5 Qc6 f6 Kc5 f5 b4 f7 b3 f8Q+ Ne7 g8Q b2 f6 Rh6 f7 Qb7 h5 Na6 Bf4 c1Q Nd2 Qc6 Qb3 Rd6 h6 Ng6 Qe7 Qc3 f8Q Bb7 Kf5 Kd4 Be2 e4 Bf3 b1Q Nf1 Nc5 Ne2+ Kd3 a6 e3 Rd7 Qd1 Rc1 Ne5 Neg3 e2 Qg6 e1Q Qc8 Rb8 a8N Nc4 Nc7 Na3 Qgf6 Ba8 Kg6 Rb4 Rg1 Qed2 Rd8 Rd7 d6 Qd5 Rh8 Qg2 Rh7 Qh1 Rg2 Rd8 d7 Rd4 Qfb6 Rg8+ Kf6 Rg4 d8Q Bb7 Qdd6 Bc6 Be5 Nd7+ Kf5 Bb7 Re2 Ba8 Re4 Qd2 Rf4 Qd1 Nh2 Ke3 Nhf1+ Kf2 Re4 Nc5 Kf6 Rd2 Rd4 Nd7+ Kf5 Rh4 Kg6 Rg4+ Qg5 Qe1 Bf4 Qe7 Be5 Qd8 Bf4 Rh4 Qge7 Rg4+ Bg5 Qg1 Qde6 Rb2 Be4 Rf4 Ne8 Qe5 Bh1 Re4 Bf4 Rd2 Qec6 Qec5 Bb8 Rh4 Bd5 Qh1 Qcd6 Q5c4 Nc7 Bc6 Bg8 Bg2 Bd5 Qc5 Be4 Qd5 Bf3 Rg4+
1Q2R3/1NPpB2n/N1b2b2/r1R1RBk1/Q1Q2Rr1/1PB1b1Rn/1K6/4n1n1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Qb6 g7 Bc8 g5 Qg6 hxg6 Nb8 Kd2 e5 Kc3 Ke7 b6 h5 c6 a5 c7 a4 f6+ Ke6 f7 Kf5 b7 a3 Bd2 e4 Nf3 a2 Bd3 h4 Nd4+ Ke5 Na3 e3 Re1 Kf4 Nc4 h3 Nd6 h2 Nb3 h1N Nc5 Rh2 Bf5 Rh8 Na6 Ne7 g8Q Rh6 g7 Nf2 g6 Nbc6 b8Q Nh3 Nb7 Na7 b3 Nf2 Kb2 Rh8 c4 Nh3 c5 Nb5 c6 Kg5 Bc3 e2 Qd4 Nd5 Qa4 Bc5 f8B Rh4 Be7+ Nf6 Qgc4 Nd4 g8R Nf3 g7 Be3 Re8 Rg4 Rf1 Nfg1 Rf4 e1N g8R+ Kh6 Rd1 Nh7 Rd5 Kh5 Re5 Kh6 Na5 Bb7 c8R Ra7 Rg5 Ra8 c7 Bc6 Nb7 Ra7 Reg8 Ra8 Rce8 a1B+ Kb1 Rh4 Rg3 Rg4 Rg5 Bb2 Bcb4 Bbd4 Bc3 Ra7 Rc5 Bf6 Kb2 Ra8 Be6 Ra7 Rge5 Ra8 Bf5 Kg5 Nb4 Ra5 Na6 Bd4 Qab4 Bf2 Qa4 Be3
Qn1nb3/B1B2pqk/3qBB1N/1R4P1/2N2n2/1B2b1R1/NP2QK1R/3b3q w - - 0 1 legal: proof: c4 b5 f4 h5 g4 a5 a4 d5 axb5 g5 cxd5 e5 fxe5 Ra6 Qa4 Rg6 Qd1 h4 h3 Rh5 gxh5 g4 Na3 g3 Nb1 Rg4 hxg4 Qf6 Ra2 Qe7 Ra1 Qd8 d4 c5 e4 g2 g5 a4 e6 a3 e5 c4 e7 h3 b6 a2 d6 c3 h6 c2 h7 h2 h8Q Ba6 b7 Bd3 d5 Na6 b8R Nc7 Be3 c1N Kf2 Bf5 Qe2 Bc8 Nd2 Nf6 Rb5 Qd7 Nc4 Qd8 Ba7 Kd7 e8N Nb3 Ng7 Na6 Nf5 Ke8 e6 Nbc5 e7 Bd7 Nh6 Nh5 Rc1 a1Q Rc3 Qb6 Rg3 Nb8 Qg8 Bc6 Qh8 Nf4 Qg8 Kd7 e8B+ Kd8 d7 Nce6+ Kf3 Qc7 Kf2 Ke7 Qh8 Qe5 Qg8 Nd8 d6+ Ke6 Qh8 Qa3 Qg8 Nb7 d8B Qc3 Ba5 Nd8 d7 Qb4 Bc7 Qd6 Qd2 Be7 Ne2 Qg7 Nc3 Bf3 Bd3 Bd1 Na2 Bf6 Bc2 Bd4+ Ne3 Bc5 Qe2 Ke7 Bb3 g1Q+ Kf3 Bb6 Nc4+ Be3 Qh8 Nb7 d8B+ Ke6 Be7 Nd8 Bf6 Qe1 Rhg1 h1B+ R1g2 Qg1 Bfd4 Ke7 Bd7 Qh2 Be6 Qg1 Qh7 Kf8 Qe4 Qh2 Qa8 Qh5+ Ng4 Kg8 Bf6 Qh2 Nh6+ Kh7 Kg4 Qg1 Rh2 Bc6 Kh4 Be8 Kg4 Bc1 Kf3 Qh1+ Kf2 Be3+
2qRN2q/2QBB1qN/1R3q1k/p2P1PN1/Q1rq2R1/1Q6/1R1nKRbr/8 w - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 d4 h4 d3 f4 g4 f6 Bh6 cxd3 Bg5 hxg5 Nc6 d4 Kf7 d5 Nd4 Nh3 Nf5 exf5 Kf8 Ng1 Ke8 d4 Kf8 b4 e5 b6 h5 f7 Kg7 f8N a5 f6+ Kf7 b5 c5 b7 h4 b8R e4 b6 g3 g6+ Ke8 d6 e3 b7 h3 g7 Kf7 d7 h2 Bb5 g2 Ra2 c4 Na3 e2 Nh3 c3 Qa4 c2 Rb2 Rh6 Rg1 h1Q Nc4 Qe8 d8R Qe5 Nh7 Kg6 f7 Qf6 N3g5 Rh2 f8R Bh3 Bd7 Kh6 Nd6 Ra7 Be3 c1Q+ Kf2 Qd2 Ne8 e1Q+ Kf3 Ra8 d5 Qb4 Bc5 Qbd4 Be7 Qec3+ Ke2 Ra6 Rf7 Rc6 Qb3 Rc4 Qa4 Qf5 Rb6+ Nf6 g8Q Qc1 Rb2 Ne4 Qg7+ Kh5 Qe5 Kh6 Qc7 Nd2 Rf6+ Qg6 f5 Qc2 Rfb6 Qgf6 Rbc8 Qcc3 b8Q Qc2 Rf1 g1Q+ Rf2 Qg3 Qbb7 Bg2 Rb8 Qcc3 R6b4 Qa1 Qbb5 Qh8 Rb6+ Qd6 Qb3 Qdg7 Q5a4 Qdf6 Re6 Qc2 Re4 Qcc3 Rg4 Qcd4 Rbb8 Qa3 Rb5 Qac5 Rb6 Qcc6 Qe5 Qa8 Qc7 Qc8
1K2Q3/n1RB1R1B/1RP4n/8/q2n1BPp/N1NBQ1nk/1rqr4/5rQB w - - 0 1 legal: proof: d4 e5 f4 b5 a4 c5 dxc5 g5 axb5 f5 g3 Bh6 fxe5 f4 Bd2 Bb7 Be3 Bf3 Bc1 Bg4 h3 f3 Ra4 Be6 Ra5 g4 Ra1 Bf4 gxf4 g3 Ra5 Nc6 Ra1 Bg4 hxg4 Nb8 Kd2 Kf7 Kc3 Kg6 Kd4 h5 Kd5 a5 Kd6 g2 b4 f2 c4 a4 e4 a3 b6 a2 e6 h4 c6 Qf8+ Kc7 d5 b7 d4 c5 d3 b5 d2 e7 Ra3 e8B+ Qf7+ Bd7 Kf6 b6 Qh5 e5+ Kg6 e6 Ra5 f5+ Kg5 f6 Nh6 e7 Qg6 e8B Rf8 f7 Qf5 Ne2 g1N Na3 Nh3 Rb1 a1Q Nc3 Rh8 f8R Qf3 Rf7 Ra6 Bd3 Qg2 Qg1 f1N Kc8 Qg3 c7 Nc6 b8Q Rf8 b7 Nf4 Rb6 d1R Qa7 Qf2 b8Q Ng3 Rh2 Qfa2 Rc2 Rd2 B7f5 Qb3 Bh7 Ne6 Kb7 Ra5 c8B Ned4 Bed7 Rb5 Kc7 Qbb1 Bb7 Rb2 Qe8 Qaa2 Ba8 Qc4 Kb7 Qa4 Kc7 Nb8 Bh1 Nbc6 Qa6 Na7 Kb8 Ngf5 Qb5 Kf4 Qb3 Qa2 Qf1+ Kg3 Qg1+ Kh3 Qe6 Rd1 Bf4 Ng3 Qee3 Qb1 c6 Rf1 Re2 Rd2 Re1 Qbc2 Reb1 Rh8 Rb7 Rg8 R1b6 Rg5 Rc7 Rb5 Qh8 Rb3 Qhe8 Rb2
1b1rQ2Q/2n1R3/5rBN/2PNrPN1/nn3NB1/5p1Q/n1R1Nkr1/2B4K w - - 0 1 legal: proof: d4 b5 g4 f5 e4 h5 gxh5 c5 dxc5 e5 a4 Qg5 axb5 Qg4 Bd2 Bb7 Bc1 f4 f3 Qf5 exf5 e4 Bc4 e3 Bf1 Be4 fxe4 Be7 Ra5 Bd6 Ra1 Bf8 c4 Kf7 h4 Kf6 b4 Ke5 c6 a5 h6 g5 c7 d5 c8N e2 Kf2 e1N h5 g4 c5 f3 b6 a4 h7 d4 b7 a3 h6 d3 b5 Kd4 e5 d2 e6 a2 b6 Ng2 e7 Ra6 e8B Nd7 b8Q Ra4 b7 Ke4 Rh2 Ndf6 Ne7 Ra6 Bg6 Nd7 Ne2 g3+ Kg1 Ke3 Kh1 Ngf6 Nbc3 Ne1 Ne4 Nd5 Bh3 Rf6 Ng5 Nc2 Bg4 Nc7 Qe8 Nb4 b8Q Nb6 Qf1 Na4 Qh3 Rg8 Rb1 a1R h8N Bg7 h7 g2+ Kg1 Ra3 Nhf7 Rd3 h8N Rd5 Nh6 Re5 Rb2 Rgf8 Rc2 Rg8 Qeb5 Rd8 Qe8 Bf8 Rh1 Bg7 Kh2 g1R Nd5+ Kf2 Qa8 Rg3 Re1 d1N Kh1 Rg2 Bf7 Rc6 Ng6 Ndc3 Ngf4 Rf6 Bg6 Nca2 Qh8 Bf8 Qc6 Bd6 Qce8 Nb5 Rd1 Bb8 Rd4 Re3 Re4 Nc7 Re7 Re5
7B/kB3N1N/1n4R1/Nb4P1/1n2p1p1/1QNNPRQ1/1Kq2rR1/Q3n1rb w - - 0 1 illegal: No possible last move
1B4b1/N2RnR1N/1q1q1P2/BrQpbB2/1Qr2kN1/1N1Qq3/2pP2K1/6N1 w - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 h5 cxb5 f5 a4 f4 g4 f3 gxh5 Rh7 b6 Rh8 exf3 Nc6 f4 Nd4 f5 Nb5 axb5 Ra7 Bc4 Ra6 Bf1 Ra8 f4 Kf7 Kf2 Kf6 h4 c5 b7 e5 b8Q d5 a6 g5 b6 g4 a7 c4 h6 g3+ Kg2 c3 b7 c2 h5 e4 h7 e3 h6 e2 Ba3 e1Q Bb4 Bc5 Nc3 Qf8 Na4 Ne7 Qe2 Qb1 Qd3 Ng6 Ba5 Ba3 Nc5 Qc1 Nb3 Rg8 h8N Qc5 h7 Bb2 Nf7 Qd1 h8Q+ Rg7 Qf8 Bd7 Rh7 Nh8 Ne5+ Nf7 Be2 Qe3 Qc5 Rg6 Bg4 Nd6 Ra2 Be6 Rd7 Qb1 Bh3 Bf7 Ng4+ Kg7 Ra3 Nc8 f6+ Kh7 f5 Ne7 Ra1 Bg8 f7 Rb6 f8N+ Kg7 Nh7 Rb5 Ra2 Be5 f6+ Kf7 Qbd6 Rc8 a8N Rc6 Qb8 Ke6 Nb6 Qc1 Qf8 Qa3 b8B Rc7 Qb4 Rc4 Nc8 Qb6 Na7 Qd6 Qd4 Kf5 Qd3+ Kf4 Ra1 Qb2 Qc8 Qd4 Re1 Q4b6 Qcc5 Bb2 Re5 Bc3 Rg5 Bb2 Rg7 Be5 Qc8 Qe3 Rf7 Qeb6 Nh6 Qe3 Bf5 Qeb6 Ng4 Qe3 Kh1 g2+ Kh2 Qeb6 Qcc5 Qb7 Nf3 g1Q+ Kh3 Qf2 Ng1 Qe3+ Kg2 Qbb6
1r2nQB1/b1K1Q3/4PrR1/7R/3P1R2/1QR1N2p/NB1n1p1r/1q1Bkq1R w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b6 a5 b3 g5 hxg5 a4 Rh5 a3 Rh2 Bd7 Rh1 Ba4 bxa4 Qd6 Qb3 Qe7 Qd1 Qd8 Kf2 Kd7 Kg3 c5 Kf4 f5 g4 h5 d4 h4 e4 a2 e6+ Kd6 e7 c4 e8R h3 b7 c3 g6 c2 e5+ Kc7 g5 Kb6 e6 Ka5 Ke5 Kb4 g7 f4 d6 f3 a5 f2 a6 Rh7 g6 Qe7 a7 Kb3 d7 Na6 b8R+ Qb4 d8Q Be7 Be2 Bf8 Rb5 Nb8 Nd2+ Kc3 Qe7 Rh4 Nc4 Rh7 Ne3 Qb3 Kd6 Nc6 Kc7 Rh6 Rh5 Nf6 g8B Qb1 g7 Rb8 a8Q Na5 Qf3 Nc4 Bb2+ Kb3 Qa8 Nd2 Bg4 Rg6 Ne2 Rh6 Rc8 Rg6 Nc3 Ne8+ Kc6 Rf6 Bf3 Nd6 Kc7 Kb4 Rd8 c1Q Qc2 Qf1 Bd1 Qc1 Rb1 a1R Qd3 Qc2 Rc1 Qb1 Rc2 Ra5 Qf3 Rg5 Re8 Rg2 Na2+ Ka4 Qdf5 Kb3 Rd8 Rh2 Qc5 Nf7 Rdd5 Nd6 Rdf5 Qa1 Rf4 Qb1 Qf7 Be7 Qf8 Bd8+ Kd7 Ne8 Qce7 Bb6 Kc6 Nd6 Qg3 Ba7 Kc7 Rb6 Bf7 Rb8 g8R Rb5 Rg6 Rb8 Nc3 Kb4 Bg8 Kb3 Ng2 Kc4 Ne3+ Kd3 Na2 Ne8+ Kd7 Nb3 Rc3+ Kd2 Qf3 Ke1 Qb7 Nd2 Qb3 Nd6 Kc7 Ne8+
1b1q4/qR4B1/ppN3b1/R4R1N/5QB1/1kBQ1nPP/3Q2n1/3rQbQK w - - 0 1 legal: proof: b4 e5 d4 c5 dxe5 h5 bxc5 g5 a4 g4 a5 b6 a6 g3 fxg3 h4 Nd2 h3 gxh3 Nc6 Nb1 Rb8 Qd4 Rb7 axb7 Nb8 Qd6 Ne7 Qd1 Ng8 Kf2 Ke7 Kg2 Ke6 c4 f5 e4 d5 c6 a6 c5 d4 c7 d3 c6 d2 Be2 f4 Nc3 Qd5 Bg4+ Kf7 e6+ Kf6 e7 Ke5 e8R+ Kd4 Bb2 Kc4 Na2 Qh5 e5 Be6 c8Q Bg7 c7 Rh7 Rf8 Qf7 Nb4 Qe8 Qd7 Ne7 c8Q+ Nec6 Qcd8 Rh6 Bc3 Qe7 Ne2 Rf6 Qg1 d1Q Qd3+ Kb3 Ra5 Na7 Nc6 Bc4 e6 Nd7 b8Q Ne5 h4 Rg6 h5 Nc8 h6 Nf3 h7 Nd6 h8B Qa7 e7 Nf5 e8Q Be5 Bg7 Rd6 h3 Bg8 Rf7 Bh7 Rb7 Bg6 Rh2 Ne3+ Kh1 Rd5 Rf2 Ng2 Qg5 Rd4 Qbd8 Bb8 Qd2 Ra4 Q8d3 Ra1 Qee3 Rb1 Qde1 Qd2 Qh4 Rd1 Qg5 Qa2 Qe3d2 Qa3 Qe5 Qe7 Qef5 Qd8 Qfe4 Ng5 Qf5 f3 Nf4 Bf7 Nh5 Bg6 Re2 f2 Ree5 f1B Qff4 Nf3 Rec5 Ne3 Rf5 Ng2
Q1n3B1/4k1PQ/BNB5/KQNp1B1R/Rqb1n3/1Ppb2r1/2nqR3/4B3 w - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 b5 cxb5 g5 d4 c5 h4 c4 hxg5 Bc5 dxc5 Ra6 b4 Rh6 Bb2 Rh3 Bc1 Rb3 axb3 Qb6 Rh5 Qc7 Rh1 Qd8 Kd2 d5 Kc3 f5 e4 h5 g4 f4 g6 h4 b6 a4 e6 a3 g7 a2 b7 f3 b5 f2 Kb4 c3 b6 h3 e7 h2 e5 Rh4 c6 Rh6 g5 Rh7 g6 Qc7 Nf3 Rh6 Nbd2 Rh3 Ng5 Qd6+ Ka5 Be6 c7 Qc6 c8B Qc7 Nc4 Rh4 Qd3 Qd8 Ne4 Rh6 Nc5 Rh3 Bd2 Na6 b8Q Rh5 Qa8 Bf5 Be1 Qd6 b7 Rh3 b8Q Rg3 Nb6 Nb4 Qc2 Bd3 Bf5+ Qd8 Be2 f1B Qb1 Nc2 Qbb7 Nf6 g8B Ne4 g7 Nd6 Qba6 Nc8 Q6b7 Be4 Ba6 Bed3 Qc6+ Qd7 Qb5 Qc6 Bgh7 Kf7 e8R Qh6 e6+ Kf6 e7 Qd2 Bg8 Bfe2 Rg1 h1N Rg2 Nf2 Rh2 Ne4 Rh5 Qh6 Rd8 Qf4 e8B Qd2 Bc6 Ke7 Rd6 Bc4 Rdh6 Bed3 Rh2 Qf4 Re2 Qf2 Rh5 Qg2 Qc1 Qf2 Qh6 Qf4 Rb1 Qd2 Rb2 a1Q+ Ra2 Qb2 Ra4 Qa3 Qh7 Qb4+
K3k1Nq/b3P3/2q1R3/3r2B1/pQ2pr2/1B1rR1P1/Q1NRQ1n1/nQ4QN w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 g5 a4 d5 cxd5 e5 axb5 g4 d4 g3 d6 Nc6 d5 Be6 dxe6 Bg7 hxg3 Bf8 g4 Nb8 g5 Qc8 Qd4 Qd7 Qd1 Qd8 Ke2 a5 Kd3 h5 Kc4 c5 Kd5 c4 f4 e4 b4 a4 e7 h4 g3 c3 b6 h3 g6 h2 f6 c2 f5 Rh7 f7+ Kd7 b7 Na6 b8Q Ra7 b5 Nh6 f6 Qc7 b6 Ng8 b7 Rh6 g7 Rh4 Nh3 Nh6 g8N Rf4 Qe2 Rf2 Ra3 Qc8 Re3 Rg2 Nf2 Bg7 f8Q Ng4 f7 Ba1 Na3 Qd8 Qh6 Bh8 f8Q Rg1 Qf7 Ra8 Qfe6+ Ke8 Kc6 Nf6 Qa2 Ng4 Qa7 Bf6 b8Q Nc5 Qb4 Nb3 Kb7 Bd4 Qg5 Rc8 Qgb5+ Rc6 Bd2 c1Q Nc2 Na1 Qbb1 Rg2 Q5b4 Rc5 Qab6 Rd5 d7+ Kf7 Q6c5 Rg1 Bh3 Rd1 Bf1 Qf8 d8R Qh6 Qcb6 Qh8 Ka8 Bc5 Rd6 Ke8 Re6 Rd3 Rg1 h1R Rg2 Rh4 Nh1 Rd5 Rb3 Bd4 Bg5 Ne3 Rh2 Ng2 Re3 Ne1 Bh3 Rf4 Bf5 Rd3 Bh7 Kd7 Bg6 Ng2 Bf7 Qb2 Qg1 Qc1 Qbb1 Bc5 Q6b4 Ba7 Rg6 Rd6 Bb3 R6d5 Re6 Ke8 Qef1 Ne1 Rd2 Ng2 Qff2 Qh4 Qe2 Qh8 Ne1 Qc4 Nc2 Qc6+
3N3k/1NP4b/BRB1r2K/B1bQp1bB/B3pP2/1Qr3R1/n2R2q1/1N2q3 w - - 0 1 illegal: Other
b1b2NN1/1Qb1bkP1/1Q3Pp1/3r4/rB2BR2/q1K2B2/1p1BR3/N3n1BR w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 h4 g6 f5 Ra7 h5 Nc6 h6 Nd4 f6 Nf5 Nh3 Ra8 Ng1 Ng7 hxg7 Kd6 Rh6 Qd7 Rh1 Qf5 gxf5 Kd7 a4 e5 d4 c5 Kd2 h5 d6 b5 a6 h4 a7 h3 d5 b4 a5 b3 a6 h2 Bd3 c4 Ra2 e4 Ne2 e3+ Kc3 Kd8 d7 Nh6 Nf4 e2 Nh5 e1B+ Bd2 Bb7 Na3 Be7 f8R+ Kc7 d8B+ Kd7 f7 Rh7 d6 Be4 Nc2 Bg2 Na1 Bd5 Qb1 Be6 Bb6 Bg3 Bg1 Ng4 Be4 Nf2 Qb2 Rd8 a8B Nd3 a7 Ne1 Bad5 Rh8 a8Q Rh6 Qa6 Ra8 Qb6 Ra4 Bf3 Rh7 Bde4 Rh8 Rc8 Rd8 f8N+ Ke8 d7+ Kf7 Nf6 Bf4 Ng8 Bc7 f6 Bh3 Kd4 Bf5 Bb4 c3 Ra8 c2 Kc3 Bh3 Ra5 Bg4 Rf5 Bh3 Rf4 c1Q+ Qc2 Qa3 Qg2 Bf5 Re2 b2+ Kc4 Rda8 d8B Bc8 Kd4 Qa2 Kc3 R8a5 Qb7 Rd5 Qf2 Bb8 Bda5 Bc7 Qfb6 Rg5 Be3 Rd5 Rg1 h1B Bd2 Bg2 Rh1 Bgh3 Bc5 Bhd7 Bab4 Bc6 Qb8 B6b7 Bg1 Ba8 Q8b7 Qa3+
1R1bNqqB/pp3N1R/2QB4/R2B1bPK/8/QBb3N1/rn1P1k2/B1q5 w - - 0 1 illegal: No proof kernel
2Q1Q1q1/k3b1qn/r2R2KB/4Q3/1NRN1rP1/q3p1N1/1R1P1qBp/1N4N1 w - - 0 1 illegal: No possible last move
RN1n1r2/2QPBR2/rr2p3/pQrN1R1b/B4b1R/1K2P3/1R1N3r/2k4B w - - 0 1 legal: proof: g4 b5 c4 g5 a4 a5 axb5 d5 cxd5 Nd7 b4 Ndf6 f4 Rb8 fxg5 Ba6 h4 Bg7 g6 Qd6 h5 Qd8 b6 Qc8 g5 Bf8 b5 Ra8 h6 Nh5 Nh3 Qb7 Ng1 Ng7 hxg7 Qa7 Rh4 Bc8 Rh1 Qa6 bxa6 Bd7 Na3 Bh3 Nb1 Bc8 d4 Kd7 Kd2 Kd6 Kc2 c5 e3 f5 b7 h5 b8N e6 a7 f4 Ne2 c4 Rh4 c3 Qd3 f3 Ba3+ Kc7 d6+ Kb6 d7 f2 d8Q+ Kb7 d5 Bd7 d6 Ne7 g8R Be8 d7 Nc6 g7 Bd6 g6 Bf4 Kb3 c2 Be7 c1R Rf8 Rc5 Rf5 Rf8 g8R Bf7 Qc8+ Kb6 g7 Nd8 Nd2 Be8 Qb1 Kb5 Ra2 Bf7 Bg2 f1R Bh1 Rc1 Qb2 Rb1 Qc7 Be8 Rh8 Bf7 g8B Bg6 Rh2 h4 Rf2 h3 Rh4 h2 Bh7 Bh5 Rf7 Rg5 Bc2 Rc5 Bb7 h1R Rf5 Bd6 Nf4 Rh2 Nd5 Bf4 Rf7 Rc6 Rf3 Rb6 Bd1 Rc1 Qb1 Rc5 Rb2 Bd6 R3f5 Bf4 Nc6 Ra6 Bc2 Rb8 Ba8 Rbb6 Nb8 Bg5 Bb7 Bf4 a8R Rc4 Qf1 Rh8 Nf6+ Be5 Rb1 Rg8 Bh1 Rf8 Nd5 Bd6 Kb2 Bf4 Bd3 Ka4+ Ka2 Rc3 Rb3 Rcc6 Bc2 Rc5 Kb2 Rcb5 Kc3 Rc5+ Qc4+ Rb4 Rb1+ Ka3 Ba4 Rbb6 Rb3+ Ka2 Rb2+ Ka1 Kc2 Rd6 Kb3 Rdc6 Nf1 Rd6 Qb5 Rdb6 Rc2 Kb1 Rb2+ Kc1 Nd2 Rc4 Nb4 Rcc6 Nd5 Rc5
3br1NN/Q1Qb3k/Q2P1Q2/4N2q/r2K4/QP1bR1p1/p3B2B/1bB1q1R1 w - - 0 1 legal: proof: h4 d5 f4 g5 a4 f5 c4 b5 cxd5 e5 axb5 Na6 Nc3 Nh6 Nb1 Nc5 fxe5 f4 g4 Nf5 gxf5 g4 Ra4 Ne4 Ra1 Ng5 hxg5 Bd6 Nf3 Bc5 Ng1 Bf8 Kf2 Kf7 d4 Kg7 e4 c5 f6+ Kg8 d6 a5 d7 h5 d5 h4 f7+ Kh7 e6 a4 b3 h3 e7 h2 e8Q c4 b6 a3 e5 c3 b7 c2 b8B f3 Ke3 a2 g6+ Kh6 g7 f2 g8N+ Kg6 e6 Qc7 d8Q Qa5 e7 Rh7 Qc7 Bh6+ Kd4 Bf5 f8Q+ Rf7 Qa4 Kh7 e8Q Bg5 Qee7 Be6 Qea3 Bh6 Qd3+ Kh8 Be2 f1B Nc3 Bd7 Ne4 Rf4 Qa6 Bg5 Nf3 Kh7 Ne5 Bd8 Rg1 h1B Qff6 Qe1 Rb1 Qh4 Qaa7 Qh5 Q4a6 Bf3 Rg3 B3g2 Re3 Bh1 Bd2 c1Q Ra1 Qe1 Bc1 Rf2 Nd6 Be4 Ndf7 Bb1 Nh8 Rh2 Qcc4 Rh4 Bd6 Rc8 Qcc7 Rb8 Nef7 Ra8 Bh2 Rb8 d6 g3+ Bg4 Bfd3 Ne5 Be4 Be2 Rg4 Bb2 Bbd3 Rd1 Bb1 Bc1 Bed3+ Kd5 Ra4 Kc5 Qd2 Rg1 Qe1 Kd5 Be7 Kc5 Re8 Kd5 Bd8 Kc5 Bc4 Kd4 Bcd3+
1B1R2N1/N3Br2/QpK3PP/3Rr2r/Q5Rb/N2b4/pNq2q2/1Nr2k1B w - - 0 1 legal: proof: b4 c5 bxc5 g5 a4 h5 f4 e5 d4 b6 dxe5 Nc6 g4 Nf6 gxh5 g4 a5 Nh7 a6 Ng5 fxg5 Na5 Qd3 Qf6 Qd1 Nb7 axb7 Qd8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 a5 b8B a4 h4 d6 c4 a3 e6 g3 e7 Kg4 e8N f5 c6 g2 e4+ Kg3 c7 Kf2 h6 f4 g6 f3 h7 a2 h5 Ra7 e5 Rg8 h8R Rg7 c5 Qg5 h6 Ra6 c6 Qf4 e6 Re7 Ba3 Rf7 e7 Rf6 Rh4 Re6 Rg4 Rf6 Ne2 g1Q Nec3 Qfh2 Qa4 Ra5+ Nb5 Rf7 Bg2 Ba6 Bh1 Kf1 c8Q Qc2 c7 f2 Nf6 Qh2 e8N Be7 Ng8 Bh4 Qb7 Re7 Bc5 Re5+ Kc6 d5 c8N d4 Nca7 d3 N5a3 d2 Nd6 d1R Ndc4 Rc1 Nb2 Bc4 Qa6 Rh5 Be7 Rae5 Kc7 Ke1 Kc6 f1R Nf6 Rff5 Rd8 Kf1 Ng8 Qhf2 Nc3 Rce1 Rad1 Rf7 R1d5 Rc1 Ncb1 Bd3+
2N1b1bq/R2B2pk/r1PQ2N1/r1KN1NP1/3Q4/q1B3R1/b6p/N2Rb1Q1 w - - 0 1 illegal: No possible last move
2B1KbB1/Q5R1/N1B2Q2/rb4qN/1BrpPp1R/b3p3/2Pn1RB1/1k2N3 w - - 0 1 legal: proof: d4 c5 dxc5 g5 h4 e5 hxg5 b5 a4 d5 axb5 d4 f3 Nd7 e3 Ndf6 e4 Qd5 exd5 e4 Nc3 e3 Nb1 Ne4 fxe4 Ke7 Qh5 Kd8 Qd1 Ke8 Ke2 Ke7 Kf3 a5 Kf4 h5 Ke5 f5 g4 f4 b4 h4 c6 a4 c7 a3 b6 h3 b5 h2 b7 a2 b8N Nf6 b6 Ba6 c8B Kf7 b7 Kg6 Ke6 Rh7 d6 Ng8 d7 Ba3 d8Q Bc5 Nd2 Bb5 Na6 Be7 b8R Rh6 Ngf3 Rh8 Bg2 Ba3 Qf6+ Kh7 Kf7 Ra7+ Rb7 Bf8 g6+ Kh6 g5+ Kh5 g7 Ne7 g8B Ng6 Nf1 Nh4 Ne1+ Nf3 g6 Rh6 Qd3 Nd2 g7 Ra8 Rd7 Kg4 Ba3 Rh7 Rc1 a1B Bb4 Bb2 Ke8 Ba3 Ng3 Rh5 Bc4 Rc5 Bd5 Rc4 g8B Ra7 Rf1 h1Q Nh5 Qh4 Rf2 Qg5 Bc6 Ra8 Qb3 Ra7 Qa2 Ra8 Nc7 Ra5 Na6 Bb2 Nf3 Ra3 Nc7 Ra8 Qa5 Ba3 Rh1 Ra6 Ne1 Ra8 Qb6 Ra5 Ng7 Kg3 Na6 Kg4 Qa7 Kg3 Rff1 Kg4 Rh4+ Kg3 Rfh1 Kf2 Nh5 Ke2 Rg7 Kd1 Rf1 Kc1 Rf2 Kb1
NrBr1NBR/kB1R1bBK/p2r3B/1Q1PPp2/q3pRQ1/8/8/5bNn w - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 b5 a4 e5 axb5 d4 c4 d3 c5 Bd6 cxd6 Qd7 exd3 e4 d4 Qd8 d5 Nc6 d4 Ne5 fxe5 Qe7 Nd2 Qd7 Nb1 Qd8 Ke2 Kd7 Ke3 f5 Kf4 h5 g4 c5 b4 h4 g6 h3 g7 h2 b6 c4 b5 c3 g5 c2 b7 Rh6 b8Q Rf6 b6 Ba6 g6 Nh6 Kg5 Ng4 g8B Bd3 b7 Bc4 g7 Nf2 Qg4 Ba2 Nd2 Bc4 Be6+ Ke8 g8B Bd3 d7+ Ke7 d6+ Kf8 d5 Nd1 Nc4 Nf2 Nb6 Qe8 d8R Ba6 Bc8 Be2 d7 Ke7 Ra2 Bf3 Ba6 Rd6 Ra3 Be2 Rf3 Bf1 Be3 c1R Rf4 Rf6 Bd2 Rf8 Kh6 Rc6+ Kh7 Rd6 Qc7 Rb8 Qc5 Bg2 Na8 Bf1 Bb5 a6 Bc6 Bc4 Qb5 Bf1 Rf3 Qh5+ Bh6 Qh3 Rf4 Qa3 Bf7 Qa4 Be6 Rf6 Rh8 Rf8 Bg8 Re8 d8N Rf8 Ne6 Re8 Ne2 Red8 Rg1 h1B Nf8 Bhg2 Rh1 Bf3 Ng1 Bd1 Rh5 Nh1 Rg5 R8d7 Rg7+ Kd8 Nc7 Ra8 b8B Bf3 Ba7 Rb8 Bc5 Bd1 Na8 Bde2 Qg2 Bh5 Qg4 Be8 B6b7 Bf7 Nb6 Kc7 Be3 Be8 Re7 Bf7 Bg7 Ra8 Bc1 Kb8 Be3 Rd8 Rd7 Ka7 Bd2 Rb8 Na8 Bg2 Rf3 Nf2 Bdh6 Bf1 Rf4 Nh1
2b1q1N1/1rR1P1k1/q6R/6N1/QN2RB1p/N2nP1Q1/1p2B1p1/N2rb1QK w - - 0 1 illegal: No possible last move
8/rqqPRr1B/k4B2/P3b1NQ/BBp3p1/N1n2R1Q/b4RNp/4B2K w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 h4 Na6 f5 Nc5 g5 Ne4 Bg2 Nef6 gxf6 g5 Bh3 g4 Bf1 Bh6 Ne2 Qf8 Ng1 Qg7 Bb2 Qg6 Bc1 Qg5 hxg5 Bf8 Kf2 b5 Kg2 h5 a4 c5 d4 Kc7 a6 Kb6 g6 e5 a5+ Ka7 d6 e4 d7 b4 d8B b3 g7 h4 d5 b2 d6 e3 d7 e2 Qb3 e1Q Na3 b1Q Nf3 Qb2+ Bd2 Qe4 Rh3 Qa2 Re1 Qeb1 Bb5 c4 Ba4 Qbb2 Ng5 Be7 f8N Bb4 f7 Ne7 g8B Rh7 f6 Nd5 Kh1 Ne7 Rf3 h3 Ng6 h2 f8R Bc5 f7 Qaa1 Nf4 Bb7 Ng2 Nd5 Bf6 Bd6 Rf2 Rg7 Qh3 Nc3 Bh7 Be4 Qh5 Bb1 Re7 Qb8 Be1 Qab2 Rf3 Qc8 Rf2 Qbb7 Rf3 Kb8 a7+ Kc7 Rf2 Be5 Qh3 Ba2 Rf3 Rb8 a8Q Qd8 Qa6 Ra8 Qb5 Ra7 Qd5 Bf4 Qf5 Be5 Qg6 Qdc8 Qgh5 Kb8 Rf2 Qc7 Rf3 Kb7 Rf2 Qa8 Rb8+ Ka6 Rb3 Ne2 Rbf3 Qe4 f8B Nc3 Re6+ Qec6 Bb4 Rf7 Re7 Q6b7
4Q1Q1/3B2n1/Q4QPp/1R2b3/r1P4K/1n2RpBQ/p2k2b1/R1rBN1nN w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Na6 c5 Qa5 bxa5 Nb8 Kf2 Ke7 Kg3 Ke6 e4 f5 c4 d5 a6 f4+ Kh4 a3 g4 d4 b6 h6 c6 f3 c7 a2 g6 d3 g7 d2 a7 Ba3 g5 Ba6 c8Q+ Nd7 b7 Bb2 b8R Bd4 g6 Ne7 Nh3 Rg8 Nf2 Nc6 Be2 Be3 Na3 Bb6 Nc2 Ba5 Re1 Re8 Nh1 Nd4 Rb5 Nb3 Bb2 Bc3 g8Q+ Ke7 e6 Kf6 e5+ Kf5 e7 Ke4 e6 Be5 Qb1 Ndc5 Bd1+ Kd3 Qc1 Rd8 e8B Rd7 e7 Ne6 Bd4 Ng7 Bf2 Rd5 Qg4 Bc8 Bg3 Rd8 Qf4 Bh3 Qf6 Bg2 Bd7 Rdb8 e8Q Kc3 Be2 d1N Qcg5 Rb6 Qh5 Nf2 Bd1 Nh3 Re3+ Kd2 Ne1 Ng1 Qg4 Rd6 Qh3 Rd3 Bg4 Rc3 Bd7 Rd8 a8Q Rc1 Qac6 Ra8 Qce6 Ra5 Qa6 Ra4
3B4/1R1B1N1q/3r3b/PB4bB/p2ppk2/1RP2bNR/2Q2K2/1B2nNQb w - - 0 1 illegal: No proof kernel
k7/NR2BK1n/1p1BRQqQ/2Q4q/N1Bp1pb1/RR1R4/3P3P/1n2qn2 w - - 0 1 illegal: No possible last move
kr5b/1Nn5/5RpP/bR3b1B/BbN3P1/1KR1pbp1/R3Q3/B1R3QN w - - 0 1 illegal: Other
R6b/2kp3B/1b1nqQ1B/5bP1/p2B1Qb1/R1p2NbR/P1QK4/3B2NB w - - 0 1 illegal: No possible last move, all moves rejected
3Q2Nk/1b3qb1/3Kp2B/QR6/1BB1PN2/1NB1B2q/pQ2p2P/Rb3r1b w - - 0 1 illegal: Other
q1n1B3/p1p2P2/2p1RNNK/1R6/2b1R1R1/PB2q1Bk/4QQq1/1q2N1Rn w - - 0 1 illegal: Other
1r6/N2n4/Q1q1Rnb1/b1kN1R1Q/3nqR1B/P1BP1B1r/1N2r2N/1Nb1K3 w - - 0 1 illegal: No possible last move
1N1BK1kb/1r3N2/q3rR2/2QNR3/bQ1nn1P1/nB1Q1q2/1bP3R1/1R2R1q1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 h5 Kc4 e5 Kd5 a5 f4 a4 b4 h4 g6+ Kg7 b6 a3 b7 d6 c6 a2 b5 h3 f6+ Kh6 g7 Kh7 f7 e4 f5 h2 c7 e3 b6 e2 f6 e1Q Bc4 Qd7 Nf3 Nc6 b8Q Ra6 b7 Qe2 g4 Qf5+ Ne5 Bd7 c8Q Qef1 Rg1 h1Q+ Rg2 Qhg1 Bb3 Ra7 Ba3 Qa6 Nc3 Qff2 Rb1 a1B Bc5 Bb2 Bb6 Qe3 Bd8 Qf3+ Ne4 Be8 Qcc7 Be7 Ke6 d5 Nc3 d4 Nd5 d3 Qe2 d2 Qd3+ Qe4 f8R d1N f7 Nf6 g8R Ne3 Qb6 Nc4 Rg5 Na3 Qc5 Rg8 Rf5 Rg6 Rff1 Kg7 Rfe1 Qf3 Rh8 Bd6 f8R Bc7 Rh6 Nd4+ Ke7 Ba4 Re8 Ne4 Nf7 Rb6 Rc6 Be5 Kd7 Bf6 Re5 Kg8 Ke8 Bg7 Qa5 Bh8 Qc5 Ndb5 Rf6 Nd4+ Qcb5 Rd6 Qc8 Rb6 b8N Rab7 Qc5 Rc6 Qbb4 Re6#
kB4q1/Br4bb/5BN1/2bqQB1n/2B1PR1r/q1nN1P2/2r3RR/QKQ5 w - - 0 1 illegal: No proof kernel
1bB2R1Q/2r1rq2/5n1Q/R4Rnn/2KPbP1r/B2B1q1N/1N1bN3/k2N2N1 w - - 0 1 illegal: No possible last move
qQ2Qr2/Qqb5/B1B1nN2/Nq3n1P/3b2r1/4Rb2/PRK2r2/B1BN2Bk w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kd7 d4 Kd6 Kd2 g5 h4 b5 h6 e5 f6 c5 f7 c4 f5 g4 a6 g3 f6 c3+ Kc2 g2 a7 b4 h7 e4 h5 e3 Nh3 g1B Na3 e2 Rb1 e1R Ba6 Bf2 Rb2 Re4 Re1 Bg4 Re3 Nh6 Qg1 Bf3 Qg7 Be7 f8N Nf5 f7 Nc6 Nd7 Rf8 h8B Rg4 Nf6 Qd7 Qh7 Nd8 Bg7 Rb8 a8B Ne6 Bc6 Qb7 Bh8 Bg1 Nf2 Bd8 Nd1 Bc7 Qg7 Rg8 Qh7 Rbf8 Bg7 Rf4 Bh8 Rgg4 Nc4+ Ke7 Na5 b3+ Kd3 c2 d6+ Kd8 d7 Ke7 d8B+ Kd6 d5 Qa8 Re5 Bd4 Re3 Kc5 d6 Qb7 Bd2 c1Q d7 Qa1 Bg7 Qa8 Bc1 Qb1+ Kd2 Qe4 Bh8 Kd6 Be7+ Ke5 d8Q Qb7 Qe8 Qb5 Rc2 b2 Bc5 b1Q Qg7 Q1b3 Rb2 Qb7 Qb8 Q3b5 Ba7 Be2 Bc5 Rf2 Bb6 Kf4 Ba7 Qf3 Kc2 Kg3 Bc5 Rc8 f8Q Kh2 Qe8 Kh1 Qgf7 Qa8 Bg7 Bd8 Qfa7 Bc7 Bd6 Qfd5 Bh2 Qbb7 Bg1 Bf3+ Re2 Qdb5 Bh8 Rf1 Re1 Rd8 Re3 Rf2+ Bd2 Rd7 Ne4 Bd8 Rbb3 B4b6 Ba1 Bd4 Nf6 Rf7 Rb1 Rf8 Rb2 Rf1 Bc1 Bc7 Re1 Rf2+ Re2 Rf1 Re3 Rf2+
R3N3/1b3N2/2Nb3n/q1kPr2B/1r6/QQn3b1/NBB3Pq/1n1RqKNQ w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 f4 Kd6 d4 a5 g6 e5 b6 c5 f6 h5 f7 h4 f5 h3 f6 a4 b7 a3 b5 c4 b6 h2 g7 a2 Be2 e4 Bh5 c3 Bb2 c2 Kf1 c1N Nc3 Nc6 b8Q+ Qc7 b7 Nh6 g8B e3 Bh7 Ne2 Bc2 Na7 Qe1 Be7 f8Q Nb5 f7 Ra5 Rd1 a1B Na2 Nec3 Qh4 Kd7 d6 Kc6 d7 Na3 d8N+ Kb6 Qh3 Re5 d5 Bd6 Qe7 Kc5 f8N Nab1 Nh7 Rf8+ Nf7 Qa5 Nf6 Rg8 Ne8 Rg4 Qeh4 Rc4 Qa8 Rb4 b8N Bb7 Nc6 e2+ Kf2 Nb5 Qb3 N5c3 Qh3 Qd8 Qaa4 Qa5 Qaa3 e1Q+ Kf3 Qe4+ Kf2 Qh4+ Kf1 Qe4 Ne2 Qe3 Rg1 h1Q Qh4 Qh2 Rh1 Qhh3 Ng1 Qhg3 Rh3 Qh2 Rg3 Qd2 Rg8 Qc1 Nc7 Qd2 Ra8 Qe3 Ne8 Qe4 Kf2 Qe1+ Kf3 Rg5 Nf6 Nb5 Ne8 Qh1 Bc1 Bae5 Bb2 N5c3 Qh3 Bf4 Qh4 Re5 Qh2 Qe4+ Kf2 Bg3+ Kf1 Qe3 Qh4 Qe4 Qg4 Qh4 Qh3 Qe3 Qh1 Qh2 Qaa4 Qd2 Qaa3 Qe1+
rQ1q2Rb/RQ2r3/qn1P1P2/rbB2k1K/4NN1R/2n3R1/B1N2Rq1/b2B4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 c5 Kg4 a5 d4 e5 b4 a4 f4 e4 g6 a3 b6 c4 g7 a2 b7 h6 d6 c3 b5 e3 b6 e2 d5 e1Q f6 c2 f5 Ra6 f7 Qc3 Rh4 Rh7 Kh5 Ra8 g4 Qe7 g5 Qe2+ Nf3 Qed2 g6 Qe5 Nc3 Qf6 Nd4 Nc6 b8R Qg2 b7 Ne5 Be2 Nc4 Ba3 c1Q Ne4 Qd2 Qb1 Nb6 Bd1 Ne7 g8B Bg7 f8R Bh8 g7 Qd3 Bc5 Qa6 Nc2 Qd4 Qb4 Qdd2 Rb1 a1B Bf7 Qd4 g8R Qf6 Rg3 Qd4 Kg4 h5+ Kg5 Qdd3 f6 Qd4 Rb2 Qdd3 Rg8 Qdd2+ Rf4 h4 Ra2 Qdd3 Rf2 h3 Qb1 Rg7+ Kh5 h2 Ra4 Qac4 Ra7 h1R+ Rh3 Re1 Rh4 Qa6 Qb3 Rg4 Rg7 Rf4 Rg3 Qd4 Qb4 Rf3 Qb1 Ra3 Qb2 Ra5 Qb4 Kd8 d7 Kc7 d8N Bd7 Qb3 Bb5 Ne6+ Kd7 d6 Ned5 Rbg8 Nc3 Nf4 Qb4 Nd2 Re7 Ne4 Qc4 Qb1 Qd4 Ba2 Qd5+ R8g5 Qg8 Qb4 Qb8 Rg8 Qd8 b8Q+ Qb7 Nd5 Ke6 Nf4+ Kf5 Qb3 Qa6 Qf7 Re6 Qfb7 Re7
RRQN4/4K2P/2r3k1/1qrNB3/Q1Q1P1qn/1N2bB1n/3b1nr1/2Q2bQB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg3 f5 h4 Kf7 d4 c5 b4 a5 e4 g4 Kf4 a4 e6+ Kf6 h6 c4 h5 c3 d6 c2 e7 a3 e8B g3 d5 g2 h7 a2 d7 Qc7+ d6 Ra3 d8Q+ Be7 b6 Bd7 h6 Be6 b5 Bd5 b7 Nd7 b8Q Qc4 b6 Rd3 b7 Qc8 Qa5 Bc4 Qba7 Bd5 b8Q Nf8 d7 Bb4 d8N Rc3 Qa4 Bc4 Nh3 g1N Bg2 Bf1 Qbb5 Rc6 Bh5 Bd2+ Qe3 Qd7 Bhf3 Kg6 Ke5 f4 Qbc4 Qg4 Bb2 Nf6 Qc1 Rg8 h8Q Rc5+ Kd6 Rg7 Qce1 c1B h7 Rgc7 Q3f2 R7c6+ Ke7 Be3 Be5 Bcd2 Ng5 Nh3 Qec1 Qf5 Qg3 Ng4 Nc3 Ngf2 Nd5 Qg4 Rb1 a1Q Rb8 Qb2 Nge6 Qb1 Nd4 Qb5 Be2 f3 Nb3 Ne6 Rg1 Nef4 Bh1 Ng2 Qh2 Nh4 Rg3 Nd3 Qg1 f2 Bef3 Bg2 Qab4 f1R Qa4 Rf2 Qf8 Bf1 Qf5+ Kh6 Qc8 Rg2 Ra8 Ndf2 Rb8 Qf4 Rg8 Qg4 Rg6+ Kh5 Ra8 Ra6 Rb6 Kg5 Rb7 Rac6 Rbb8 Kg6
2q2k2/1B1q1b1P/qQ1r4/2bBB1RQ/BPB4r/3N2n1/K1Nn2Q1/1brN1R2 w - - 0 1 illegal: No possible last move, all moves rejected
6N1/2b1B1PN/BP1K1BbQ/5Q1B/1nRnr2q/N2QBR1q/1b3qr1/5r1k w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 Ke5 h5 b4 c4 d4 e6 f4 h4 g4 h3 b6 h2 b5 a4 g6+ Kg7 b7 Kh6 d6 a3 b6 c3 d5 a2 g7 c2 f6 Kg6 g5 Rh5 f5+ Kh7 f7 Rh4 f6 Kg6 d7 Ra3 d6 Rc4 Qd3+ Kh5 g6 Kh4 Nf3+ Kg3 Be3 c1R Ng5 Ne7 g8B Na6 b8N Nf5 Nc6 Be7 f8Q Nb4 f7 Nd4 Nh7 Bb7 Be2 Kg2 Qh6 Rf1 f8Q Rac3 g7 Rc2 Bh5 Ba6 Ke4 e5 Na3 Re2 Rb1 a1B Rb3 Bb2 Qf5 Qc8 Rc3 Bd8 Ne7 Bb5 Be6 Ba4 Ng8 Bc2 Bd5 Bb1 Bb7 Qc5 Ba6 Rc2 Bf2 Qc8 Ke3 e4 Kf4 e3 Ke5 e2 Be3 e1Q Rb3 Qf2 Rc3 Bc7 d8B Re2 Be7 Bd8 d7 Bc2 Qd1 Bb1 Kd6 Be4 Qb5 Bg6 Rb3 Rcc2 Qdd3 Qc3 Qbf5 Qce1 Bd2 Re4 Be3 Qh4 Rc3 Qef2 Rc6 Rd1 Rf1 h1Q Rc4 Q1h3 Rg1+ Kh2 Rg3 Kh1 Rf3 Rf1 Kc5 Bc7 d8B Re2 Bf6 Rc2 Bde7 Bd8 Kd6 Qfg3+ Qe5 Rg2 Qef4 Qf2 Qf5 Bc7+
1n2rQ2/RBR2Pnb/1Q2NBrk/3P4/1KR3B1/b1NBq3/Q2B1n2/1qb4q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 Kg7 g4 a5 d4 e5 Kd2 c5 Kc3 h5 b6 c4 d6 a4 g6 h4 b5 h3 d7 e4 g5 a3 b7 a2 b6 h2 Bd3 e3 Qe2 Qe8 d8B Ra4 Nf3 Nd7 b8Q Be7 b7 Ne5 f6+ Kf8 f7 Kg7 f5 Ra5 Bd2 Qc6 Rc1 Rc5 Kb4 h1N Nc3 Nh6 f8R Nd7 Rf7+ Kg8 f6 Nf5 g7 Kh7 g6+ Kh6 g8B Ng7 Qg2 Nf2 Ng5 e2 Ne6+ Rg5+ Qd6 e1Q b8Q Qd5 Qb6 Nb8 Qdc5 Bd6 Rc7 Be5 Qf8 Qe3 Bh7 Qb7 f7 Qbf3 Bf6 Qd1 Be4 Qh1 Bb7 Bd7 d5 Rg4 Rab1 a1Q Rb2 Ba4 Ra2 Bc2 Ra7 Rg3 Qe4 Bb1 Qc2 Rg1 Qa2 Be4 Ne2 c3 Rc4 c2 Rc7 Bb2 Nc3 Kh5 Rc4 Qb1 Rc7 Nf5 g7 Kh6 g8B+ Ng7 Bf5 Rg6 Bh7 Rg8 Bg4 Bd3 Qe7 Re8 Qf8 Bf5 Rd1 c1B Rf1 Nd1 Rf4 Nf2 Rfc4 Rg5 Bg6 Bd3 B6h5 Bh7 Bf5 Rg2 Bd3 Rg6 Bg4 Ba3+
k3N2Q/3QP1BB/3nR2q/1RKn3b/r2bq2r/B3P1B1/1rNBn1RN/7b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 g5 Kd4 a5 b4 f5 h4 g4 e6+ Kd6 e3 c6 e7 Kc7 b6+ Kb7 d6 g3 h6 a4 h5 g2 b5 f4 h7 f3 h6 f2 d7 a3 Ra2 Ra7 Kc5 Qc7 d8B Ra5 d4 Qf4 d5 Qe5 Nf3 g1R Nh2 Ra4 Bd3 f1B Rg2 a2 Ba3 Qe4 d6 a1Q d7 Nf6 Bc2 Ka8 b7+ Ka7 Qd5 Be2 Ba5 Bg7 d8N Ne8 Qd7 Nd6 Bd2 Qf6 Ne6 Bh5 Nc7 Rf1 Ne8 Rf2 Bd3 Re2 Rf1 Qfe6 Rf6 Qh3 Bc3 Rb2 Bd2 Qhh4 Qh3 Bcg4 Re6 Bf3 Bc2 Bf6 b6+ Ka6 Rf2 Bf7 Bab4 Bg6 Na3 Bh1 Rg2 Qf5+ Re5 Qhh5 Kd4 c5+ Kd5 c4 Kc5 Qd3 Qd7 c3 Bb1 Qh4 Re6 Nc6 Bc2 Be5 Bb1 c2 b8R c1N b7 Ka7 Bc2 Rf8 h8B Rf4 h7 Ne2 Bg7 Qh6 h8Q Bh5 Bb1 Qdh7 Be4 Rg4 Nc2 Rh4 Ba3 Nb4 Bd3 Q7g6 Bf5 Qg4 Bh7 Nd5 Rc8 Qe4 b8B+ Ka8 Rc7 Bf6 Rb7 Nc8 Bg3 Nd6 Rb5 Bd4+
NQq3N1/r2P1qR1/nnR1Q1b1/Q3Q1B1/2BR1N2/1P3K2/2r1Q2b/brkq4 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 h4 Kd6 d4 a5 f4 c5 h6 e5 f6 g5 h5 g4 b3 g3 f7 e4 b6 a4 f5 a3 f6 e3 b7 a2 h7 c4 h6 g2 Na3 c3 Nb5+ Kd7 d6 Ke6 d7 Kf5 d5 Kf4 d6 c2 Nh3+ Ke4 Rg1 Nc6 b8Q Qe8 d8Q Ra3 d7 Ra4 Qa5 Ba6 Nf4 Bd6 f8Q Nb4 f7 Nf6 Qg8 Nfd5 f8R Qf7 Rc8 Nb6 Rc6 Bb7 Qe1 Na6 Nc7 Ba8 Qg4 Rc8 h8N Be5 Bd2 c1Q h7 Bb7 Rb1 a1B Nhg6 Kd4 Kf3 e2 Qd1 e1Q Qe2 Qed1 h8Q Ba8 Ne7 Qcc4 Rh1 g1R Ng8 Ra2 Rh4 Rc2 Nd5 Rc7 Qe6 Ra7 Nc7 Qc5 Bc1 Qcf8 Rg4 Qc8 Rg7 Bd6 Qhh5 Bb7 Qhf5 Be5 Na8 Bc7 Nd5 Bh2 Bg5 Rh1 Rd6 Bc6 Rc1 Bb5 Rc6 Bd3 Nf4 Rg1 Qfb5 Bg6 Qbf5 Nb4 Rd6+ Kc3 Rd4 Kb2 Qff6 Na6 Qfe5 Rd2 Rc6 Rc2 Bh3 Kc1 Bf5 Rg4 Bd3 Rg2 Bc4 Rb2 Q6f6 Rb1 Qfe6 Qe1 Qd3 Rc2 Qde2 Qd1
2BBBkb1/2NP4/R1bb1P2/Q3n2q/5rN1/1R1n4/qq2K1Rn/BB1r1N1Q w - - 0 1 illegal: No possible last move, all moves rejected
2N1B2B/qKPQNQQ1/4R1q1/b1P1q2k/bQ4R1/nr2R2n/1Q6/1nr1B1b1 w - - 0 1 illegal: No possible last move
QK6/1B2Bb1n/QB2B3/n1PbbQ1q/4R2P/rr3N2/2Bb2Rb/kr1NN3 w - - 0 1 illegal: No possible last move
B1R3r1/KQB5/1B1b1n1R/1NP2Q2/2kPrn2/QrBn1Bq1/4n1bR/1N2n3 w - - 0 1 illegal: No proof kernel
3n2Nn/B4k1n/1P2b1N1/2n2B2/1RQ2P2/rbq1R1N1/nbr2KQR/B4B1B w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 c5 b4 h5 g4 a5 d4 e5 g6 a4 d6 a3 f6 c4 f7+ Kd7 g7 Ke6 b6 a2 d5+ Kf6 b7 h4 g5+ Kg6 b5 e4 d7 c3 d6 c2 b6 h3 Rh2 e3 Qe2 Qe8 d8R Qa4 d7 Ra6 Re8 Qb4+ Nd2 Nh6 d8Q Qc3 g8B Be6 Bb2 c1N Qd5 Ba3 Qeg2 e2 Kf2 e1N Ne4 Nf3 Rb1 a1N Ne2 Nc6 b8B Na2 N2g3 Nb3 Ba1 Nd8 Ba7 Nc5 Qc4 Bb2 Nf6 Ra3 f8N+ Kg7 g6 Ng5 Re7+ Nhf7 Bh7 Rg8 Re8 Nh8 Re7+ Bf7 Re3 Be6 N8d7 Rf8 Ne5 Rf7 Ng8 Rc7 Qe2 Kf8 g7+ Ke8 Bd3 Nh7 Ng6 Kf7 Bf5 Rc6 Rh1 h2 Qc4 Bc1 Rb4 Bb2 Qe2 Rd6 Qc4 Rd1 N8e7 Rc1 g8B+ Kf6 Bf7 Kg7 Be8 Kf6 Bc6 Kf7 Rg1 h1B Ng8 Qg7 Qh2 Bhd5 Qg2 Qc3 Rh1 Be4 Rh2 Bc2 Qg1 Ba4 Bh1 Bb3 Qg2 Rc2+
2B3K1/4RrBb/P2N1QPb/1B2Rq2/bb2n3/1r2QQ2/3N1Bn1/BN1rb2k w - - 0 1 illegal: No possible last move
1b4Bn/N2bk1bP/BR3n1Q/5Qb1/4P1R1/Rr1Rr3/rQ1N2Rn/1K2q1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 g5 b4 f5 d4 c5 Kd2 a5 Kc2 f4 e4 a4 b6 f3 b5 f2 h6 g4 d6 c4 d7+ Ke7 b7 a3 b6 a2 d5 c3 h7 g3 e6 g2 h5 Nf6 h6 Bg7 d6+ Kf8 e7+ Kf7 e8B+ Ke6 Rh2 Rg8 h8Q Ng4 Qd5+ Kf6 Bf7 Qe8 d8R Ra4 d7 Qe7 Ne2 g1N Nd2 Nf3 Rg2 Nc6 b8R Qb4 b7 Nce5 Nd4 Ke7 Ba6 f1R Nb5 Re1 Na7 Ng6 Qf5 Nf6 h7 Rf8 Bg8 Nh2 Ra8 Qa5 b8R Re3 Rb6 Re8 Rab1 a1B Rg4 Ra3 R1b2 Rb3 Ra2 Bb2 Kb1 Ba3+ Bb2 Bd6 Ra3 Bb7 Rac8 Bb8 Rcc6 Qb4 Rd6 Bc6 Rd3 Re2 Rdg3 Re3 Rg2 c2+ Ka1 c1B Bd4 Rf3 Bg1 Qc3+ Ka2 Qe3 Ka1 Qe1 Ka2 Rbe3 Kb1 Rh3 Rc8 Ba4 Rcc3 Rc8 Rd3 Rc2 Bc8 Ra2 Ba6 Kf8 d8Q+ Be8 Qc7 Bd7 Qcf4 Ke7 Qh6 Rhg3 Bd5 Rgf3 Qc8 Rh3 Bg8 Nh8 Qc3 Ref3 Nf1 Bg5+ Qc1 Re3 Nd2 Qh4 Qb2 Rhg3 Rdd6 Rb3 Rd5 Rge3 Rd3 Qe1+
NNRK3n/PbqQ2N1/1Q1R4/1NNn4/r1n1b1rk/1r1R2bb/3Q2BP/B7 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kf3 c5 Kf4 b5 Kg5 f5 a4 g6 e4 b4 d4 c4 e6 f4 a6 b3 a7 b2 h6 c3 h7 f3 d6+ Ke8+ e7 Kf7 a5 f2 d7 c2 e5 Nc6 d5 Rb8 a8N Qc7 e8Q+ Kg7 d8Q Qb7 e6 Qd7 a6 Rb5 a7 Bd6 e7 Ne5 Na3 b1B Qb6 Bb7 Ne2 Nc4 Bb2+ Nf6 Nc3 c1N Ne4 Bg3 Bg2 f1B Nc5 Nd3 d6 Nf4 Qd2 Qc6 d7 Rb3 d8N Be4 Nb5 Rf8 h8R Rg8 Nd4 N6d5 Ra6 Rf8 Qd7 Rf6 Kg4 g5 e8N+ Kg6 Ng7 Rf5 Ba1 Kf6 Qb5 Ng6 Qb6 Rf4+ Kh5 g4 Nb5+ Nce5 Rg8 Nh8 Re8 Bc2 Ra3 Ra4 Kh6 Be4 Rg1 Qe6 Nc6 Qd6 Nb8 Qc6 Nge6 Kf5 Kg7 Nc4 Kf8 Kg6 Rc8 Kh5 Ke8 Kh4 Bh1 Bh3 Kd8 Be5 Rd1 g3 Bf3 g2 Ng7 g1R Bh1 Rg4 Bg2 Re3 Rd3 Bg3 Rf1 Rf3 Rf2 Re3 Rf6 Rf3 Rd6 Re3 Rd4 Rb3 Rd3 Qc7+
2nNQ3/Bq1B1n1Q/2q2nb1/b1Q1B1NN/2B2nK1/2RP2n1/2r3P1/r1kB2R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kg3 a5 b4 f5 e4 c5 b6 h5 g6 c4 e6 Kd6 e7 Ke5 e8Q+ Kd4 d3 f4+ Kf3 c3 b5 h4 e5 a4 b7 c2 e6 h3 e7 a3 d6 a2 g7 h2 b6 Qc7 d7 Nh6 d8Q+ Nd7 b8N Nf7 g8B Qc6+ Kg4 f3 b7 f2 Nd2 Kc3 Ngf3 Nb6+ Qdd7 Rh7 Rb1 a1Q Ng5 Qa7 Rg1 h1N Be2 Ng3 Nf1 Nh5 Ng3 f1N Be3 c1N Rb2 Rh8 Rc2+ Kb3 Bf3 Ne2 Qc1 Nef4 Bd1 Bg7 Bc5 Bc3 Bf2 Ba5 Rc3+ Ka2 Qe3 Kb2 Qc5 Rh6 Qdf5 Re6 Qh7 Bd7 Bd4 Nc8 Be5 Rg6+ Kh4 Nf6 Nh5 Qca6 Nc6 Bf5 b8B Q7b7 Ba7 Ng3 Nd8 Qac6 Qd7 Rh6 e8B Bg6 Qde7 Nfd6 Bc4 Nf7 Bd7 Kb1 Qg8 Rh8 Qh7 Re8 Rb3+ Kc1 Qf8 Re6 Qe8 Rd6 Ra3 Rd4 Rb3 Re4 Ra3 Re2 Rb3 Rc2 Rc3 Bb6 Bab8 Ra1 Ba7 Ne6 Kh3 Bc7 Kh4 Ba5 Kh3 Nf4+ Kh4 N6d5 Kg4 Nf6+
N2N4/BBnnr3/nb4B1/R1P1n3/5BPk/2q1BQ2/QR1K2br/1N2n1Qq w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 Kf7 b4 a5 c4 d5 f4 h5 f6 Kg6 b6 e5 f7 d4 c6 e4 c7 a4 b7 d3 f5+ Kh7 f6 Kg6 b5 a3 b6 e3 Nf3 h4 Nfd2 h3 Rh2 Nc6 b8B e2 b7 a2 Ba7 Bc5 f8Q Bb6 b8B Bb7 c8B Ne5 f7 Qf6 c5 Bg2 Bb7 Rh4 Bd6 Re8 Nc4 Re7 Kd2 e1N Qa8 Rh5 f8Q Qg7 Qff3 Nf6 Bc7 Nfd7 Be2 Nc2 Qg1 Nb4 Bd1 Na6 Bc2 Nc6 Bf4 Qc3+ Kd1 Nce5 Bce3 Bf1 Rg2 h2 Rd2 h1Q Ke1 Bc7 Nb6 Bg2 Kd1 Rh2 Qg8+ Rg7 Na8 Bb6 Qc4 Re7 Re2 Kg7 g6 Kf6 g7 d2 Bh7 Qa3 Kc2 d1N Bg6 Nc3 Kd2 Nb5 Qc2 Nbc7 g8N+ Kg7 Nh6 Kf6 Nf7 Qb2 Nd8 Qb3 Nc3 Qb2 Rc1 a1N Nb1 Qb3 Qb2 Nc2 Qa2 Ne1 Rc2 Qc4 Rb2 Qb3 Bf2 Qa3 Re4 Qb3 Ra4 Qc4 Ra5 Qb3 B4g3+ Kg5 Bd4 Qc4 Bf4+ Kh4 Bde3 Qc3+
2QRrN1r/Qb3r2/1n1qbQBk/4K2n/1BN2R2/r1QBb1Q1/3P1P2/6Nq w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 Kg7 Ke4 a5 g4 h5 b4 c5 g6 e5 f6+ Kh6 d6 c4 d7 c3 f7 a4 g5+ Kg7 b6 c2 b7 a3 b5 a2 b6 h4 Bd3 h3 Qf3 h2 Ba3 c1R Bb4 Rc5 Na3 Rh5 Nc4 Qe7 d8Q Nd7 b8Q Qd6 b7 Rc7 Qa7 Rh8 b8Q Nb6 Qh3 Be7 f8N Be6 Qbc8 Rb7 Re1 a1R Re3 Ra3 Rf3 Bf6 Rf4 Rf7 Qde7 Rb8 Qg3 Ra8 Qc5 Re8 Qd4 Nh6 Qc3 Ng4 Qd8 Bd5+ Kf5 e4 Qde7 Bd4+ Qf6+ Kg8 g7 e3 Nd7 Kh7 g6+ Kh6 g8Q e2 Nf8 e1Q g7+ Kh5 Be4 Be3 Bd3 Be6+ Ke4 Rh7 Qh8 Qb1 g8B Rh6 Bh7 Qf1 Nh3 Qc1 Rg1 h1B+ Rg2 Qd1 Ng1 Qf1 Bf5 Rhh7 Bg6+ Kh6 Qd8 Qa1 Qhf6 Rh8 Qc8 Qd7 Qfd8 Nf6+ Ke5 Nh5 Qf6 Qd8 Rh2 Bb7 Rhh4 Qd7 Rd4 Qf1 Rhf4 Qh3 Rd6 Qh1 Rdd4 Qdc6 Rd8 Qd6+
1q3k1r/1qrBbn2/bQ2R3/B1RN1Qnn/3PN1bB/4K1N1/2Pb3R/4N2N w - - 0 1 illegal: No proof kernel
bKbb4/2qQ4/3Bqn2/rN1N1P1R/6Rb/1r1BNRnB/RRr2P1Q/4k3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kd4 a5 b4 h5 g4 a4 g6 a3 g7 a2 b6 c6 b7 e6 g5 h4 b5 h3 g6 h2 b6 Ra7 Ba3+ Kd7 Ke5 c5 d4 c4 d6 Kc6 d5+ Kb5 d7 Ne7 Kd6 e5 g8B e4 g7 e3 Nh3 e2 Nc3+ Ka5 Nf4 e1R Bh3 Na6 b8Q Qe8 d8R Re3 b7 Nc5 Kc7 Ne4 d6 Ng3 Nb5 c3 d7 c2 Bc4 c1Q g8R Rb3 Rg4 Ng8 Nd5 Nf6 Bd6 Qe6 Ne3 Be7 Rdg8 Ka4 d8N Ra5 Nc6 Qc3 Nb4 Bd8+ Kc6 Rh7 Nbd5 Rc7+ Kb6 Qce5 Bd3+ Qf4 Rh8 Rc2+ Qc7 Qc4 b8R Qf4 Re1 h1B Rh5 Qc4 Re2 Qf4 Rb1 a1B Rb2 Bf3 Qh1 Qc4 Qh2 Bh1 Nf4 Ba8 Nfd5 Qf4 Rb1 Be5 Rb2 Qc4 Rd2 Bf4 Rb7 Bg5 Ra7 Bh4 Rb7 Be7 Qd7 Bd8+ Rc7 Ba6 Ka7 Bc8+ Kb8 Qf4 Rc5 Qc4 Nf4 Kb4 Ra2 Rcc3 Rdb2 Rc2 Na7 Kc3+ Nb5+ Kd2 Nfd5 Qf4 Rc4 Qfe5 Rcf4 Ke1 Rf3 Qc3 Rb4 Qc5 Rg4 Qc7+
1Bq2k2/4bNr1/QNRb4/BB2Pqn1/P2Q2n1/2Q1q2K/N2Rb3/NN1br3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 f5 Kg2 b5 e4 g5 d4 c5 h4 f4 a4 g4 a6 b4 d6 g3 e6 c4 a7 f3+ Kh3 c3 d7+ Ke7 d5 f2 h6 g2 h5 c2 h7 b3 d6+ Kf6 e7 Kf7 e8Q+ Kg7 h6+ Kf6 Rh2 b2 Ne2 g1Q Nd4 Ba6 Bb5 Bb7 Bf4 c1B Nb3 Be7 Qd4+ Ke6 Qg6+ Nf6 Ra3 Qe8 d8B Rg8 h8N Nd7 h7 Ne5 d7 Rg7 Na1 Nf3 Bb8 Bf4 Nf7 Bfd6 Ba5 Qc8 h8Q f1B+ Rg2 Bc6 Rc3 Be2 d8N+ Kd7 Rc4 Ng4 Qgf6 Bd1 Rd2 Qe3 Qhh6 Ke8 e5 Bd7 Nc6 Kf8 Nb4 Bf5 Qhf4 Bd3 Rc6 Bc4 Qg3 Bce2 Nc3 b1Q Nba2 Qc2 Nb1 Q2f5 Qe6 Qc7 Qc8+ Qd8 Qa6 Qdc8 Bbc7 Rb8 a8N Rb7 Bb8 Rc7 Rb6 Rc1 Rc6 Bc2 Nb6 Re1 Qg1 Bcd1 Qc3 Qee4 Qgc5 Qe3 Q5d4 Ng5+
5q1r/qN4bB/Q2rB1Qb/2QPk2N/1Q4K1/B1r2Q2/1nR2n1P/R2bNb2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 b4 f5 e4 g5 d4 a5 d6+ Ke6 d7 c4 d5+ Kf7 h6 a4 h7 a3 e6+ Kf6 e7 a2 e8B f4 e5+ Kf5 e6 c3 b6 c2 e7 Nc6 b5 Rb8 b7 Nf6 b6 Bg7 Nh3 Ke5 Bd3 Na7 Na3 Nb5 Bf7 Qg8 d8N Be6 e8Q Rc8 b8Q+ Nd6 b7 Qf8 Qc7 Ne4 b8Q Nf2 Nb7 Rd8 Be4 Bh6 Qc5 Rd7 Qa8 Nc4 Qa6 Nb2 Bg8 Rd8 Qg6 Rd6 Rf1 Bd7 Be6 Ba4 Qd2 Bb3 Qdb4 Ba4 Re1 Bb3 Re2 g4+ Kg2 f3+ Kg3 Ba4 Nf4 Bb3 Kh4 g3 Nh5 g2 Rd2 g1Q Bd3 Ne4 Re2 Qd4 Kg4 f2 Rd2 f1B Re2 Nd1 Bb2 c1R Nc2 Ba4 Ba3 Nb2 Ne1 Rc3 Rc2 Qdf2 Rac1 a1B Rb1 Q2f7 Rd1 Rg8 h8Q+ Q7g7 Qh7 Rh8 Rb1 Qc7 Qhf7 Qcb8 Qf3 Qa7 Rf2 Bd1 Rc2 Nc4 Rbc1 Bb2 Ra1 Nf2+ Kh4 Bbc1 Bdf5 Bg7 Be4 Bch6 Kg3 Nh3 Kg4 Nb2 Qe8 Qf6 Bh7 Qf8 Qg6 Nf2+
1qRN4/1r6/1kb2KRP/bBN1Q3/3N2Rn/PnB3QQ/qq1N4/qr1N1b2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 b5 h4 g5 f4 e6 d4 g4 d6+ Kc6 f6 g3 f5 g2 a6 b4 a3 c4 a7 b3 h6 c3 h7 c2 d5+ Kc5 d7 b2 f7 Qe8 d8R Qb5 h5 Na6 h6 Kb6 f6 Kc7 Nd2 b1B Bb2 c1Q Qf3 Qbc4 d6+ Kb6 d7 Qa2 Nh3 g1Q Nf2 Nc5 Bb5 Bd3 Qh3 Bb7 Rc8 Bc6 d8N Ne7 Bc3 Qcb2 Nd1 Qg8 Rg1 Nb3 Rg4 Rb8 a8Q Rb7 Qb8 Nf5 Rg6 Be7 f8N Bf1 f7 Bb4 Kf6 e5 Nfe6 e4 f8N e3 Nd4 e2 Nfe6 e1Q Nc5 Ba5 Qbg3 Nh4 Rb1 Qge8 Rg4 Rg8 h8Q Rgg7 Rc1 Rge7 Qg7 Re2 Qe7 Rg2 Qee5 Rg1 Rc7 Qh8+ Rcg7 Qg8 R7g6 Rh1 N8e6 Qb8 Nd8 Rg1 Rc2 Rh1 Ne3 Qec1 Nd1 Qca1 Ne3 Nf5 Na6 Bf3 Bb4 Nh4 Rc8 B1e2 Bc3 Rb1 Nd1 Bf1 Nc5 Bc6
2BB1nbb/R1B5/1B1PN1kq/K3QN2/1Q2B1N1/P1bq3r/Q1nq4/1qR3r1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kf7 h4 e5 d4 g5 Kd2 c5 Kc3 b5 f6 c4 h6 e4 h5 g4 h7 g3 a6 g2 d6 e3 Kb4 e2 h6 e1B+ Nc3 Bb7 f5 Bd5 a7 Qe7 Be3 Bg3 Qe2 Nd7 Nf3 g1Q Ne5+ Ke8 f7+ Kd8 f6 Be6 d5 Qg2 Ng4 Bf2 Nd1 c3 Ka5 Bg7 f8N Ke8 Bb6 Kf7 Nde3 c2 Nf5 c1Q a3 b4 Qa2 b3 Ba6 b2 Bc8 Qf4 Rac1 b1Q Rh5 Rb8 a8B Qd8 Rh3 Qfh2 Rhc3 Qh4 Rc7 Bd4 Ra7 Ne7 Bc7 Rg8 h8B Rb3 h7 Qh6 Bb6 Rh3 Bab7 Ne5 d7 Nd3 Bc7 Qg3 d6 Nb4 Be4 Bc4 Ne6 Kg6 f7 Qgd3 f8Q Nc2 Qb3 Bgf6 Qb4 Bc3 Bg7 Qe8 d8B Qhd2 Bh6 Bh8 Be3 Qf7 Bg1 Qg7 Bgb6 Qgh6 Qg7+ Kh5 Qe5 Ng6 Qh2 Nf8 Qf2 Kg6 Qe2 Bhg7 h8Q Bgd4 Qe5 Bb3 Qf4 Bh8 Qe5 Rg7 Ned4 Bg8 Ne6 Q3e3 Qc4 Qed3 Qa2 Kh5 Nge3 Rg1 Ng4 Kg6
R1BQ1Q2/2Rb3q/1K1Pn3/1n1P1B1r/2N2q1N/B2RB1Nb/r2q3k/1Bbq4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 a5 Kd4 h5 Kc5 e5+ d6 c6 g4 a4 d4 e4 f4 a3 b4 e3 g6+ Kf6 g5+ Kg7 b6 a2 b7 h4 b5 h3 b6 e2 Na3 e1Q Nc4 h2 Bh3 Qe4 Ne2 Qc2 Ba3 Qf6 Rc1 a1Q Ng3 Qe6 Rg1 Ne7 f6+ Kg8 g7 Kf7 g8B+ Kg6 f7 Bh6 f8Q Qee2 Bge6 h1B Rg2 Qg4 Rd2 Nf5 Rd3 Bg2 Qd2 Qgd1 d5 Qh5 Qa5 Bd7 Bg4 Nd4 f5+ Kh7 f6 Kg6 f7 Nb5 Bh3 Qd2 Rc2 Qad1 Bhg4 Be8 Bc8 Bd7 Rcc3 Bh3 Rc1 Kh7 Bf5+ Qg6 Qd8 Kg7 f8N Qh7 g6 Qf4 Qe8 Kf6 g7 Kg5 g8B Kh4 Bf7 Ra6 B7g6 Ra8 Qd8+ Bg5 Qe1 Qfd2 Qf1 Qf4 Kb4 Na6+ Ka5 c5 b8B Nac7+ Ba7 Ne6 b7 Qdd2+ Kb6 Qd1 Nd2 c4 b8R c3 Nc4 c2 Qf2 Bg4 Qf3 Kh3 Qf1+ Kh2 Qf3 Qh6 Bh7 Qh4 Ng6 Bh3 Qf1 Qhh5 Nh4 Qfd2 Bhg6 Qh7 Qf4 Be7 Qh6 Bg5 Qhf8 Qf4 Ra1 c1Q Rb7 Qcd2 Rc7 Q2e1 Kb7 Qee2 Be3 Qed2 Kb6 Bh6 Bb2 Ra2 Bc1 Rb2 Ra8 Ra2 Bb2 Bg7 Ba3 Bb2 Rb3 Bc1 Bb1 Qg8 Rd3 Rh5 Bf5 Qh7
BRR3bQ/rR2q1Bn/1P6/R1NNr3/nB4K1/1n1qb1R1/1qN1nP1k/1Q6 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 Kd6 d4 g5 h4 a5 b4 c5 b6 e5 h6 e4+ Kg4 c4 b7 c3 b5 c2 h7 e3 b6 e2 h5 e1Q h6 a4 Ba3+ Qb4 Bg2 c1N Nh3 Nd3 Nf4 Na6 b8R Nc1 Rg1 Be6 Rb7 Ra7 Bf3 Nb3 Rg3 Qc5 Bb4 a3 Qh1 a2 Na3 Bg7 Qb1 Be5 Nc2 Nf6+ Kh3 Rf8 h8Q Bg8 h7 g4+ Kh4 Re8 Kg5 Nd7+ f6 Nf8 Bh1 Re7 f7 Bf6+ Kh5 Bg5 Bf3 Re5 Bg2 Ng6 f8R Qe7 Rfb8 Nf8 Be4 Qd7 Bh1 Ke7 d6+ Kf7 Rd3 g3 d5 g2 Rg3 g1N Bf3 Qe7 d7 Qcd6 d8R Ne2 Rdc8 Nac5 Kg4 Na4 Bh1 Qg6 d6 Qd3 Nd5 Kg6 d7 Be3 d8N Kh6 Ne6 Kg6 Kf3+ Kh5 Nc5 Kh4 Qf6+ Rg5 h8B Nh7 Qf8 Re5 Bg7 Be6 Qh8 Bg8 Rg5 Kh3 Rg3+ Kh2 Kg4 Bf4 Nc7 Bh6 Bc6 Be3 Nd5 Ra8 Rbc7 Ra6 Ba8 Ra7 Rcb7 Nb2 Qd1 Bg5 Rb1 a1Q Qc1 Qa2 Ra1 Be3 Qe1 Qb1 Ra5 Na4 Qf1 Qa1 Qb1 Qb2
2Q4N/2BR1q2/BP1n1k2/1K3n2/1bQ1q1QP/3Rr2b/q1qr1B2/1R1NRR1n w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 g5 Kc4 c5 h4 e5 b4 a5 d4 g4 f4 a4 d6 g3 d5 a3 f6 e4 f5 a2 h6 g2 h7 e3 d7 e2 d6 e1N b6 Bg7 b7 Qc7 d8R Ra4 d7 Ra8 b5 Qd6 b6 Qe6+ Kb5 c4 Nh3 g1Q Nc3 Na6 b8B Qf2 Qg4 Nh6 Nf4 Nc5 Bc7 Re8 h8Q Qe4 Be3 Nb7 Rb1 a1Q Nd1 c3 Ng6 c2 Bd3 Qf1 Bf2 c1Q Qh7 Ra2 Nh8+ Kf8 f7 Ke7 f8R Rd2 Rf6 Qa2 Qg8 Bf8 Qc4 Qcc2 Be2 Nd3 Rd6 Ne5 Rd3 Kf6 Rg1 Bb4 Rh1 Qh3 Re1 Qhe3 Bf1 Qg5 Be2 Qg7 Bf1 Re6 Rf8+ Qf7 d8R Re7 R8d7 Re8 Rde3 Nd3 Be2 Nf4 Red3 Nh5 Bf1 Ng3 Be2 Nh1 Bf1 Bd6 Be2 Ke5 f6 Nf5 Bf1 Qg6 f7 Kf6 Rg8 Bb4 f8Q+ Qf7 Qfc5 Qd4 Rf8 Re3 Be2 Qe4 Bf1 Nd8 Qc6+ Ne6 Qa8 Neg7 Qb7 Ne8 Qb8 Bb7 Qc8 Bd5 Be2 Be6 R3d6 Rc3 Qc6 Ne3 Bg1 Ba5 Qh5 Kg7 Ka6 Qe7 Rff1 Qf7 Bf2 Bh3 Qf3 Nf5 Qg4+ Kf8 Bc4 Re3 Rd3 Bb4+ Kb5 Ba5 Kc5 Bc3 Ba6 Ba5+ Kb5 Bb4 Qf3 Kg7 Qc4 Kf6 Qg4 Ned6+
3R3K/2q2q2/PQ1b2QP/1NBR2bR/k3q1rN/r1n5/Rn3RbN/1Bb4B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 g5 Ke4 b5 Ke5 c5 f4 c4 h4 g4 a4 c3 d4 g3 a6 c2 a7 b4 f6 b3 f5 e6 f7 g2 f6 b2 a5 Rh6 d6 Kc6 a6 Be7 f8Q Qd7 f7 Rh7 d5+ Kb6 h6 Bd8 h5 Nf6 Qg4 Rh8 h7 Ng8 Bd3 Ne7 Kf6 e5 Kg7 e4 Qg6 e3 Na3 Ka5 Nf3 b1Q Nb5+ Qa2 Ba3 g1B Bc5 c1B Nh2 e2 Bb1 Qc7 d7 e1Q d6 Ka4 h6 Bb7 Qe8 Nbc6 f8R Rb8 a8B Qe4 Rf2 Nd5 Qee6 Ncb4 Qef6 Rf8 h8N Nd3 Qe6 Be7 d8R Beg5+ d7 Rf3 Qb6 Nb2 Kg8 Nc3+ Kh7 Qa3 Ra2 Rf4 Kg8 Rg4 Nf1 Rc8 Rhh2 Qb4 Bd4 Rh4 Qge6 Qc6 Rdf8 Ne2 d8R Rg4 R8f5 Qe8+ Kg7 Rc3 Rh5 Bh2 Ng6 Bd6 Nh2 Qf7+ Kh8 Qc5 Nh4 Qcc7 Bc5 Rh3 Be4 Bd5 Bh1 Bg2 Be4 Re3 Qg6 Reg3 Ra1 Qaa2 Re5 Ra3 Rd5 Qb1 Ra2 Nc3 Bf5 Qc2 Bd3 Qe2 Bb1 Qe4
KB5r/3n3b/P2bP3/2kr2N1/3nrQ2/1Q2R1QB/Nb3r1N/NRqq1B1N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 Ke4 c5 d4 b5 h4 f6 a4 b4 h6 g4 a6 c4 a5 g3 h5 b3 h7 c3 e6+ Kd6 e7 g2 e8N+ Ke7 h6 b2 d6+ Ke6 a7 c2 a6 Kd7 Kd5 f5 e4 f4 e5 f3 Rh3 f2 Bf4 c1Q Nf3 g1B Qb3 Qcc7 Nc3 b1R Na2 Bg7 Nh2 Nc6 Re3 Rd1 Rb1 Qh4 e6+ Kd8 d7 Ke7 d8Q+ Kf8 Qf6+ Qf7 Bb8 Nd8 Qf4 Ke7 Nd6 Re1 Ne4 Qe8 Ng3 Rd1 Nh1 Nc6 Kc5 Bf6 Kb6 Qg5 d5 Re1 Qg3 Bd7 Kb7 Qd8 Bh3 f1R d6+ Kf8 Qf4 Be8 d7 Ke7 Qg3 Nd4 Qf4 Qda5 d8N Qa4 Qg3 Bg6 Nc6+ Kf8 Ncb4 Ke7 Qf4 Rf2 Nc2 Bg7 Qg3 Nf6 Na1 Nd7 Bf1 Rd8 h8N Bh7 Nf7 Be5 Bh3 Bd6 Qf4 Qc5 Ng5 Qc2 Qg3 Qa3 Qf4 Qac1 Qg3 Q2d1 Qf4 Bg8 h7 Ree2 h8Q Bh7 Qhe5 Re1 Rf3 Re4 Re3 Rh8 Qg3 Rd8 Qef4 Rh8 Bc7 Rag8 a8B Rd8 Nf1 Bh2 Bb8 Ba3 Ka7 Bb2 Bc6 Rc8 Bb5 Rc5 Ka8 Rf5 Qg2 Bg3 Nh2 Rd5 Qf5 Bc7 Bf1 Kd6 Qf4+ Kc5 Qgg3 Bd6
BQ1Nn3/QRBQn2P/1Qr1KRNq/2N4q/R4b2/1rrb3Q/1k1b2P1/6b1 w - - 0 1 illegal: No proof kernel
1b2n1r1/RRQb1qNP/1r2R3/1q1nQ3/B4R2/Rnb5/b1B1QPk1/K5BN w - - 0 1 illegal: No possible last move
1Q1q1BK1/Qr1b2Pr/BN4Rn/P2q2RR/5rq1/qN2Q1Q1/2kN1Q2/n3b3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 b5 Kd4 h5 Ke5 c5 d4 h4 a4 e6 f4 h3 g4 h2 f6 Kg6 d6 c4 f5+ Kf7 d5 b4 a6 b3 a5 c3 a7 c2 g6+ Ke8 g5 Kd7 f7 b2 g7 Nf6 g8Q Nh5 f6 Na6 g6 Rb8 a8Q Ng7 Qd4 Ne8 Ne2 Be7 f8Q Rb7 f7 Bh4 Qaa7 Nc5 Qe3 Rh7 Nd2 b1Q Ba3 c1Q Nd4 Be1 Ba6 Qb4 N4b3 Qg4 Rg1 h1Q g7 Qgh5+ Rg5 Qg4 Bb4 Qa3 Qh8 Rh2 Qh4 Qhg2 Qhg3 Rh7 Rc1 Qh1 Rc4 Qhf3 Rf4 Qg2 Rf6 Q2f3 Nd4 Nb3 Rfg6 Na1 N4b3 Qgf5+ Kd4 e5+ Kc4 e4 Kd4 Q5g4 Ke5 Nc7 Rh5 Ne6 Rgg5 Qe8 Rg6 Qh1 Kf6 Ng5 Bc5 Kd8 d7 Qg2 Qh4 Kc7 d8R Bd7 d6+ Kc6 Qhg3 Kd5 Rc8 Qh1 Rc6 Qc8 Rb6 Qg2 Rb5 Qc7 Qfb8 Qb6 Qef2 e3 f8N e2 Qe8 Qd8+ Qe7 Bf5 Nd7 Nf7 Rhg5 Kc6 Bb4 Qd5 Nb6 Bd7 Rh5 Qd3 Rbg5 Qd5 Qf5 Bf2 Qff3 e1R Qff4 Re2 Qd4 Be1 Qdf2 Re4 Bc5 Bf5 d7 Rf4 Bb4 Qh8 d8Q Bd7+ Rf5 Qe8 Qee3 Qf8 Qdb8 Qd8+ Be7 Nd6 Nd4+ Kc5 N4b3+ Kb4 Qgf3 Qe8 Bf8 Qc8 Q3g3 Qc7 Bd3 Kc3 Ba6+ Kb2 Ke7 Kc2 Rfg5 Qc8 Qe6 Nf5+ Kf7 Qd8 Kg8 Nd6 Qfg1 Nf7 Q1f2 Qgf3 Qe7 Qg4 Qee3 Nh6+
4BqkN/1q1Nb1P1/Pb1Qq1r1/1Q3r2/1n1bN3/Nb1NR3/B4BK1/4Rn1R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 c5 g4 h5 f4 e5 Kf2 b5 d6 c4 f6 h4 g6+ Ke8 g7 Kf7 a6 b4 a5 h3 a7 e4 d7 h2 f5 c3 d5 e3+ Kg2 c2 a6 e2 g5 e1B d6 b3 Nh3 b2 Qd3 Rh5 Nf4 Rh8 Na3 b1Q Be3 c1B Bf2 Qdb6 d8N+ Ke8 g6 Bb2 f7+ Kd7 f6 Ne7 g8B Nf5 g7 Ba5 Nb7 Bd4 Qb5+ Nc6 Nd3 Ke6 d7 Nb4 d8Q Ng3 Nd6 Rh6 Ne4 Rg6 Qc7 Qb2 Re1 Be7 Qf4 Rb8 a8R Qc2 Be2 Qcc5 Bh5 Nf1+ Qg3 Qbc6 Ra7 Bb6 f8N+ Kf5 f7 Be6 Re3 Bb3 Nd7 Qe6 f8N Rc8 Re1 Rc6 Bf7 Rd6 Rc7 Rd5 Re3 Qcd6 Rc1 Qb8 Rce1 Qa8 Nh7 Qf8 Nhg5 Rc5 Bg8 Re5 Nf7 Rd5 Nh8 Rc5 Nc3 Re5 N7c5 Kf6 Bf7 Rf5 Be8 Rh6 Qd6 Rg6+ Bg4 Kg5 Nd7 Kh6 Ne4 Kh7 Ng5+ Kg8 Bf3 Bc2 Bd5 Ba4 Ba2 Bc2 Qb8 Bb3 Qd6 Nd2 Rhf1 h1Q+ Kg3 Qc6 Rh1 Qcd5 Kh3 Qc6 Ne4 Qb7 Kh2 Nf1+ Kh3 Ng3 Kg2 Nf1+
RbbR1N1n/q3PB1R/r7/3RBNb1/1BQnN1P1/K2Q4/3n1q2/k2r1Rb1 w - - 0 1 illegal: No possible last move
2r2qb1/nQ1P2RK/1R1Nk3/2q3bB/3b4/2QRbNQ1/P1n2BqN/2RR3r w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 e5 Kg4 c5 h4 b5 f4 g5 d4 b4 d6 b3 h6 b2 Kh5 g4 f6 g3 a6 e4 f5 e3 d5 c4 h7 c3 a7 e2 d7 e1B d6 g2 Qf3 c2 Be2 Qc7 d8R Ne7 Qg3 Ng6 Nd2 b1Q Ngf3 g1Q Nh2 Bd7 Ndf3 Qcc5 Be3 c1B Bf2 Rg8 h8Q Ba4 d7 Na6 Rb8 Qcb5 Rb6 Rd8 a8Q Qd5 Qb7 Bg7 Bd1 Kf8 f7 Ke7 f8R Ne5 Rff6 Qb4 Rg6 Bed2 f6+ Kf7 Be2 Qg2 Rd1 Rc8 Rg5 Bb2 Rac1 Bb3 Rg6 Bgh6 Rg7+ Kf8 f7 Nc6+ Kg6 Ke7 f8R+ Ke6 h5 Bhg5 h6 Bd4 h7 Qdc5 Rf5 B2e3 Rd5 Qa3 Rd3 Nb4 Rdd1 Nc2 Rd3 Rc7 Rdd1 Rb8 Qhc8 Qf8 h8N Qac5 Nf7 Bc4 Nd6 Na7 Kh7 Rc6 Qcc7 Rc8 Ra6 Bb3 Qa5 Rb6 Qc3 Rb4 Rb6 Bc4 Ra1 Rb1 Rd3 Rh1 Rdd1 Bdf6 R5d3 Bfd4 Rac1 Kf6 Ne1 Bf7 Bh5 Ke6 Nef3 Bg8+
1r6/b1P5/1Qq1Q2b/1r1QQ1n1/N2Q1bRB/K1nq2PB/B5b1/kN1R1n1R w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 d5 Kb4 e5 f4 h5 c4 a5+ Ka3 h4 b4 d4 c6 e4 f6 Ke6 f7 a4 b6 h3 c5 Kd5 f5 d3 f6 Kd4 b7 d2 g6 h2 g3 e3 c7 e2 c6 e1B g7 Bf2 Qb3 d1N Bg5 Ra5 Bh3 Ne7 g8B Bh6 f8R Nd7 b8Q Nd5 f7 Bb7 c8Q N7f6 b5 N5c3 b6 Nh7 Bh4 Rb5 Qce6 Ne3 Qbe5+ Kd3 c7 Ng5 Qb4 Kc2 Ne2 Nf1 Qbd4 Bg2 b7 Bg1 Qdd5 Ba7 b8Q Qd7 Qbb6 Qc6 Rg1 h1Q Qed4 Qh2 Rh1 Qg1 Re8 Qe3 f8Q Qd3 Bf7 Rg8 Qfd6 Rf8 Re7 Rb8 Qd6e5 Rc5 Kb4 Kb2 Bg8 a3 Rg7 a2 Rg6 Kc2 Ka3 Rb5 Bf7 Nh7 Rg4 Bf4 Nd2 Ng5 Rd1 a1B Nb1 Rc5 Kb4 Bb2 Bg8 Bbc1 Bf7 Bcd2 Ka3 Rb5 Bg8 Nce4+ Nec3 Bde3 Ka4 Kb2 Bf7 Ka1 Ka3 Qc2 Na4+ Nc3 Bg6 Qe2 Bc2 Qd3 Bb3 Nh7 Ba2 Bh6 Qg5 Bf4 Qge5 Ng5
2Kq4/B1P1kn2/rN3R1n/2R2P2/2b3N1/1rQR1Qnq/2RRBbn1/2Q2q1B w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 a5 Ke5 d4 f4 a4 h4 g4 b4 a3 c4 e6 f6 a2 b6 g3 c6 g2 h6 d3 c5 d2 b5 Bg7 c7 Ne7 b7 Bd7 Kd6 e5 c8B e4 c6 e3 c7 e2 f7+ Kf8 h5 e1N h7 Bd4 b6 Nd5 h6 Nf6 f5 Ra6 Nc3 Ra7 Nf3 g1Q Na4 Qf2 Rh3 Ra5 Ne5 Qe2 Rd3 Rb5 Ng4 Rg8 h8R Qee8 h7 Nc2 Be2 Na6 b8Q Ncb4 b7 Bf2 Nb6 Qe3 Qa8 Nc6 b8R Rb3 Bb7 Ne5 Bh1 Qh3 Qf3 Nc5 Qe1 d1N Be3 Qh2 Qc3 Qh3 Rc1 a1Q Rc2 Qa6 Bd4 Ne3 Qa1 Ng2 Qc1 Qc4 Ra8 Qb5 Ra5 Be6+ Nd7+ Kg7 f8R Qc4 Rcd2 Nf7+ Kc6 Ne4+ Rc5 Ng3 Nb6 Qb5+ Kb7 Bc4 Be3 Nfe4 Rc2 Nh6 Rf6 Ng5 Rdd2 Ngf7 Bd4 Kf8 Rd3 Qd5+ Kc8 Ke8 Rdd2 Rf8 Rg8 Qd6 h8Q Qd5 Rgg6 Rg8 Rd6 Ke7+ Rd8 Qd6 Rf6 Rg6 Be3 Qf4 R8d3 Qg5 Rfc6 Rd6 Qc3 Rg6 Rf6 Qa6+ Kb8 Qa1 Kc8 Qb1 Qa3 Qf1 Qc1 Qgh4 Ne5 Qd4 Ng4 Qd8+ Kb7 Ne1 Re6+ Kf8 Ra5 Qd4 Kc8 Ra3 Na4 Ng2 Rae5 Qd5 Ba7 Rb3 Rd6 Qd4 Rc5 Ke7 Rdc6 Rd6 Ra6 Rd7 Rg6 Rd6 Rf6 Ra6 Nb6 Qd8+
br1RQR1B/NrPn4/3QN1q1/2P5/K1NbnQBk/2qb3B/2N3n1/2n1N3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 e5 Kb4 d5 c4 h5 f4 a5+ Ka4 h4 g4 d4 b4 e4 c6 d3 g6+ Kf6 g7 e3 g5+ Kf7 b6 h3 b5 e2 c7 e1N g6+ Kf6 b7 h2 b6 d2 c5 Be6 Na3 Bd6 Bb2+ Be5 Nc4 Qd5 Nf3 Qd6 Bh3 Na6 b8N Nh6 g8B Qd3 b7 Nc2 g7 Ncb4 Rf1 h1B Ne1 Na2 Nc6 Ra7 b8N Bd4 Nb4 Rb7 N8c6 Nc1 Nbc2 Ng4 Na7 Ne3 Bh7 Rc8 g8Q Ng2 Qe8 Nb8 Bg8 Bd5 Be6 Nd7 Ra3 Qg3 Rd3 Qg6 Qf3 d1N Bc3 Kg7 f6+ Kh6 f5 Kg5 f7 Nf2 f8Q Be4 f6 Rcb8 f7 Kh4 Qd6 Bf5 Rd1 Bd3 f8N Ne4 Beg4 Ndf6 Ka3 a4 Qff4 Nd7 Rd2 Nb6 Kb4 a3 Ne6 Nd7+ Ka4 a2 Rff2 Be3 Bh8 a1Q+ N4a3 Qc3 Nc4 Qcg7 Qfe5 Bd4 Rf8 Q7f6 Rd1 Qf3 Qf4 Qe3 Qa6 Qd2 Qad6 Qc3 Qh2 Bf2 Rf7 Ng5 N2e3 Rb2 Nf1 Ne3 Ng3 Ne5 Qde7 Be2 Rd8 Bd3 Rf8 Nd7 Ne2 Ba8 Qf4 Ng2 Qed6 R2b7 N2d4 Ne4 Ndc2 Bd4
2RRQ3/1Pn2qr1/N1R1B2k/2Br1bbq/n7/2N1K1Q1/2r1P2b/1QN1rQ1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 h4 f5 d4 Kf7 b4 g5 h6 Kg6 h5+ Kh7 e6 a5 e7 f4 e8Q c4 b6 c3 b5 g4 d6 c2 d5 a4 b7 a3 d7 f3 b6 a2 d6 g3+ Ke3 g2 Ba3 c1R Nh3 g1R Nf2 Qc7 d8Q Nf6 d7 Qc2 Nd3 f2 Bc5 Rg4 Bh3 f1Q Qc7 Ra6 d8R+ Nbd7 b8N Bd6 b7 Rg7 Nc3 Ra5 Be6 Bh2 Na6 Nb6 Qg3 Na4 Qb5 Rf8 Qb1 Ne8 Rg1 Qf5 Qf1 Re1 Nc1 Nc7 Rg2 Qb2 Rf2 Qg6 Rf6 Rfg8 Rff8 Qb5 Rf6 Qe8 Rf8 Bd7 Rc8 Qf7 Rfd8 Kh8 h7 Rb5 Bb3 Bf5 Be6 Rb2 Qfh3 Rc2 Qf1 Nb5 Rc6 Nc7 Rc8 Qg4 Rd8 Rg5 Rc8 Kg7 h6+ Kg6 h8Q Rg7 h7 Kh6 Qe8 Qgh5 h8Q+ Bh7 Qgg1 Rd5 Qhg8 Bf5 Qh1 Rh7 Qg3 Rg7 Qb4 Rdd1 Rb1 a1B Rb3 Rd5 Ra3 Rg8 Qb1 Rg7 Rb3 Bb2 Rbb6 Ba1 Rd6 Bb2 Rdd8 Ba3 Rc6 Bb4 Bd4 Be7 Bc5 Bg5+
1kb3n1/1P1Q1qNB/1RB3b1/2r3bQ/7B/qRQNQ1RQ/q1P5/3qrn1K w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 d5 b4 Kd7 f4 Kc7 Kf2 g5 Kg2 a5 f6 e5 h6 a4 f7 a3 f5 e4 c6 e3 b6+ Kd6 h7 e2 f6 e1Q h5 a2 c7 g4 h6 g3 b7 d4 b5 d3 b6 d2 Ne2 Bg4 c8B Na6 b8R Bd7 Nf4 Kc6 Nh5 Bg7 f8Q Qe6 f7 Nf6 Qa3 Ng8 f8Q Qe3 Bb5+ Kd5 Qf5+ Be5 Ng7 Qc7 Qh3 Nc5 Bc6+ Kd6 Rg1 Ra5 Kh1 Bf4 Nc3 Bg5 Rb1 a1Q Rb3 Qa2 Nd5 Be8 Bg4 Bg6 Nf4 Qf7 Bf5 Rb5 Qdh5 d1B Nd3 Bg4 Bb2 Qee7 Bf6 Qef8 Qc1 Ne4 Qe3 Nd2 Bd8 Nf1 Rb7 Bf4 Bh4 Bg5 Bfe4 Bc8 Bf5 Ne7 Q5g4 Rg8 h8Q Rc5 Qh7 Rh8 Qb4 Ng8 Qc3 Q8e7 Rb8 Qea7 Rg2 Q7a3 Bfe4 Bh5 Q7f5 Bg6 h7 Ne7 Rg1 Re8 h8Q Ng8 Qh5 Re7 b7 Kc7 Ra8 Re8 Ra6 Kb8 Qd7 Re6 Rg2 Ree5 Rab6 Re7 Rf2 Ree5 Rf3 g2+ Kg1 Re7 Rg3 Re8 Bf5 Re6 Qef3 Re2 Qe3 Re1 Ne6 Nh2+ Kf2 Rg1 Nb2 Bh7 Ng7 Rc1 Nd3 g1Q+ Ke2 Qh1 Kf2 Qe1+ Kg2 Nf1 Kh1 Qe2 Bg6 Re1 Bge4 Bf5 Qd5 Qd1 Qd7 Be6 Bg6 Bf5 Bh7 Bg6
6qn/P2NqQq1/B2K4/QR1RNQbR/5b1Q/Bb1rQ3/3P2kb/r1N2n2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 Kh4 a4 b5 f4 g5 a6 c5 a5 c4 f6 g4 h6 e6 d6 c3 h7 c2 a7 b4 f5 g3 f7 b3 f6 b2 d7 g2 a6 Be7 f8N Nh6 f7 Bg5 Ne2 Kh3 Ra5 Ng4+ Kd6 e5 Rb5 e4 Na3 b1Q Nc4 e3 Ba3 c1B Ne5 Bb2 Qc2 Nc6 Qf5 Qa1 Nc1 Ne7 Bd3 Qe8 d8R g1B Nfd7 e2 f8Q e1Q Q8f7 Kg2 h4 Qg8 h5 Ng6 h6 Ne3 Rh5 Bh2 Bc4 Nf1 Bd3 Rb8 a8Q+ Bb7 Qa7 Ra8 Qe3 Bd5 a7 Bb3 Bc4 Rc8 Be2 Rc3 Bd3 Qg7 Bc4 Qa2 Be2 Rf8 h8Q Qh4 Qhg8 Nh8 h7 Rd3+ Qd5+ Qe4 Qgf7 Bd4 Qc5 Qh4 Qc3 Bgf4 Qa5 Bc5+ Kc6 Be7 Kc7 Beg5 Kc6 Ng6 h8Q Rg8 Qh7 Nh8 Kc7 Rc3+ Kd6 Rd3+ Rd5 Qe1 Rb8 Rc8 Qh6 Rc2 Qhf6 Rb2 Rb7 Rb1 Rb5 Ra1 Rc5 Rd4 Ba6 Rd3 Rb5 Bh6 Qh4 Bhg5 Qd4 Qe4 Q5e6 Qeh7 Qe3 Qhg8 Qff5 Qc2 Qef7 Qc7+ Ke6 Qcd8 Kd6 Qe7+
5B1n/P2B1B2/1r2N1q1/3P1n2/RB2bnqn/N3Q3/1RKR1r1b/QN3kBb w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 h4 b5 f4 c5 a4 g5 f6 e5 f5 e4 h6 g4 f7 e3+ Kc2 b4 h7 g3 a6 c4 a7 c3 f6 e2 h5 e1Q h6 g2 a5 Ne7 a6 Qd7 Ne2 g1N Ba3 Nf5 Qd2 Bb7 Qe3 Nc6 Rh2 Nce7 Bh3 Rb8 a8B Qg3 a7 Qg6 Rf2 Bg7 f8N Nf3 f7 Be5 Ne6 Rhf8 h8B Bh2 h7 N3h4 Bg7 Bc6 h8Q Rb6 Bb7 Qc8 Ba6 Qd7 Bc4 Qc8 Ra2 Bb7 Rf4 Bc6 Rb2 Qd7 Kb3 c2 Nec3 c1N+ Kc2 Nd3 Re4 Qc8 Rg4 Nf4 Nb5+ Kd7 d6 Bh1 Bf6 Kc6 d7 b3+ Kc3 Nf3 d8R N3h4 Bb4 Qd7 N5a3 Qc8 Rd2 b2 Kc2 Qd7 Rb8 Qc8 Bcf1 Qd7 Be5 Kd5 Bed6 Qc8+ Bdc5 Qd7 Bb5 Qc8 Be8 Qd7 Qf2 Ke4 d5 Qc8 Qe1+ Kf3 Qh6 Qd7 Bg1 Qc8+ Nc3 Qc4 Qa1 Qe2 Ncb1 Qe4+ Rd3+ Ke2 Bd7 Qg2 Rd2+ Kf1 Rb7 Ne2 Rc4 Nf4 Bg4 Qg3 Bh5 Q6g4 Rcd4 Neg6 Re4 Nh8 Bg6 Re8 f8B Re7 Bh5 Rf7 Bg6 Rf6 Bf7 Qg6 Ba5 Qh3 Ra4 Qhg4 Bab4 Ne2 Qe3 Nf4 Nc3+ b1B+ Kc1 Bbe4 Ncb1 Nd3+ Kc2 Nd6 Rc7 Rf2 Rc3 Ndf5 Rb3 Nf3 Rb2 Nf4+ Kb3 N3h4 Kc3 Nd3 Kc2 Nf4+
2b3kB/6P1/bR4bQ/1Nn1nR2/2q1P3/r1QBNrN1/b1bb2KN/1N1QR3 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 b5 a4 f5 c4 Kf7 g4 d5 e4 h5 c6 d4 a6 f4 g6+ Kg7 c5 h4 a5 f3 e6 b4 e7 b3 e8R d3 g5 h3 a7 d2 a6 b2 c7 h2 c6 Bh3 c8N Rh7 c7 Nc6 Ra5 Nh6 Re6 Rb8 a8N Rb7 a7 Be7 Ncb6 Nf5 c8Q Kg8 g7 Ne5 Nc4 Nd4 Bd3 Bb4 Ne2 Rf7 Nc7 Nb3 a8Q Nc5 Re1 h1B Ng3 Rf8 Qc6 Qd5 Ne3 Qc4 Kg1 f2+ Kh2 f1B Nb5 Rh6 Q6a6 Bf3 Rb6 Bh5 Kh1 Kh7 g8N Rf3 g6+ Kh8 Qc6 Bc8 Nf6 Rh7 Nfg4 Ra7 Kg1 Kg8 Nh2 Be2 Kg2 Ra8 N1c3 b1B Bb2 Ba2 Nb1 Ra7 Qd6 Bc3 Qd4 Bb4 Qc3 Ra8 Qdc1 d1B Ba1 Bc2 Qd1 Ng4 Qb7 Ne5 Qh7+ Kf8 Qh6+ Kg8 Ra7 Ba5 Rf7 Bb4 Rf5 Ra3 Qb3 Ba5 Bd4 Bd2 Qc3 Nf7 Bh8 Ne5 g7 Bg6 Kg1 Bf1 Kh1 Bh3 Kg1 Bg4 Kg2 Ba6 Rff6 Bd7 Rf5 Bdc8
5qnB/1N3B2/1B1rn2b/B1BQQn2/b3P2N/nr1P3k/1rR3r1/2RK1NR1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 h4 a5 e4 g5 d6 Ke6 b6 c5 h6 f5 d7 f4 b7 g4 b5 g3 b6 c4 h7 g2 h5 f3 h6 c3 Ba3 c2 Bc5 Na6 b8R c1R b7 a4 Bb6 a3 Bc4+ Ke7 e6 Kf6 e7 Kg5 e8N Kg4 Bf7 a2 Nd6 Nc7 d3 Ra6 Nd2 Qe7 d8B Rc2 Nf1 Ne6 Rc1 Rb2 Qb3 a1N Kd1 f2 Qd5 Bd7 Nf3 g1R Nh4 Rg2 Rg1 Kh3 Rbc8 Nc2 b8B Na3 B8a7 Ba4+ R8c2 Bg7 Ba5 Qf8 Nb7 Rd6 Bc5 Rb3 Nh2 f1N Bdb6 Ng3 Nf1 Rb2 Ng6 Nf6 Nh4 Rg8 h8B Nf5 h7 Bh6 Bg7 Rb3 h8Q Re2 Rc3 Reb2 R3c2 Ne8 Bgc3 Rg2 Qg7 Nf6 Qg5 Nh5 Bh8 Nf6 Qe5 Ng8 Qd5 Nfe7 Qge5 Nf5
1NBQ1r2/1QNn4/K2B1RN1/5RrB/r2P2r1/P4bb1/bb2k1q1/N2n1NR1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 d4 e5 h4 c5 f4 g5 f6 g4 d6 g3 f7 b6 d7 g2 a6 c4 f5 c3 a3 c2 a7 Na6 h6 Nc5 h5 Nb3 h7 Bh6 f8N Nd2 f6 Ke3 f7 e4 Ne6 Qf6 f8R Bg7 d8N Qe7 h6 Qb7 Nf3 g1R Rf5 Be5 Ne1 Rg4 Be2 Bg3 Rhf1 Nf6 Nc7 Nd7 Nc6 Rf8 h8Q Rg5 h7 Rg4 Bb2 c1B Bc3 Bb2 Nb8 Nc4 Bb4 Qd5+ Bc5 Bb7 Nd2 Bc6+ Ka6 b5 R1f4 b4 Bd6 b3 Qb1 Rg5 Bf3 Kf2 Qf6 e3 h8N e2 Nc2 e1R Qd8 Ne3 Ng6 Rg1 Nf1 Nd1 Bh5+ Qf3 Rf6 Ke2 R4f5 Qg4 Bb4 Bf3 Bd6 Bc3 Qb2 Qh3 Rc1 Qg2 Qb1 b2 Na1 Ne3 Qe4 b1B Qb7 Ba2 Nd2 Rh1 Rg1 Rh4 Nf1 Rhg4 Nc6 Rc8 a8B Bb2 Nb8 Nd1 Qb3 Nc3 Bc6 Nd1 Qb7 Qh2 Bd5 Qh3 Be6 Qg2 Na8 Rc4 Nc7 Nb6 Bc8 Nd7 Nc6 Rb4 Nb8 Ra4+
3nR3/RqQn3K/b3P3/brnkb2Q/N1n2P2/1Q1r1NB1/3R1Q1b/QN5B w - - 0 1 illegal: No proof kernel
3Bbn1N/6rq/1rB1k1N1/2rN2Pp/3Q1P1R/B1b1NR2/2nNK1R1/bn5Q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 e5 d4 a5 g6 h5 f6 e4 g5 a4 g7 a3 f7 a2 d6 c4 b6 c3 b7 e3 b5 e2 b6 c2 d5 Qe8 Na3 Qe4 Nf3 Nh6 g8N Qe5 Ne7 Bg7 f8N+ Kd8 d7 Ng8 Nfg6 Qe4 Rh4 Qe3 Qd4 Qc3+ Nd2 Qc6 Nac4 Nf6 Bg2 Ra7 Ba3 Qc7 Ne3 c1R+ Kf2 e1N Ke2 Ra6 Rb1 a1B Rb3 Nc2 Rb2 Nc6 b8R Rg8 b7 N6b4 Ra8 Bh8 b8Q Rg7 Qb7 Nh7 Rb8 Nf8 Qc6 Nd3 R8b3 Nde1 Bh1 Qa7 Qa8 Kc7 d8B+ Kd7 d6 Rb6 Bc6+ Ke6 N7d5 Bd7 Qb7 Be8 d7 Nb4 Rd3 Rc5 Rc3 Nbc2 Ra2 Ra6 Qb1 Nf3 Qh1 Rb6 Ndf1 Rb7 Qd1 Re7 Ba5 Rg7 Kd3 Rh7 d8N+ Kd6 Nf7+ Ke6 Nf5 Rb8 Bd8 Ncd4 Rg2 Nc2 Ke2 Nd2 Rf3 Bhc3 Nfh8 Rb6 Nf5e3 Nb1 Qd4 Qg7 Nd2 Qh6 Qd1 Rg7 Qh1 Qh7
q4bN1/r1N2r1n/Q3nN1R/4P3/p1N1n3/2b2RQB/P2R1BbB/2rN1k1K w - - 0 1 illegal: No possible last move
3RBq2/r4p2/2PnQN2/b1KPb1Q1/b4N2/r1Nr1nQQ/1B4n1/Q2RBk2 w - - 0 1 illegal: No proof kernel
kN1Q3n/3nRqQB/1rN5/1R2q2Q/1BPNp1B1/5n1r/3qB2P/3bB1bK w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 c4 e5 a4 d5 f4 Kd7 Kf2 Kc6 Kg2 b5 h6 Kb7 f6 g5 a6+ Ka7 c6 d4 f5 b4 f7 g4 h7 d3 f6 g3 a5 b3 c7 b2 Bd2 Qd7 Nc3 b1Q Na2 Bb7+ Nf3 Qf5 c8B Qc1 Rb1 Qh5 Nb4 Qc3 Be1 d2 Bg4 Be7 f8B Bd8 f7 Bc8 Nd4 Qh4 Bfe2 Qf6 Bc5+ Bb6 f8N Qf7 Nd7 Nh6 Rg1 Qb2 Kh1 Qc3 Rf1 Qa1 Rf4 Bb7+ Re4 Bc6 Bf8 Ba4 Rb3 Qc3 Qa1 d1Q Rb1 Nc6 Nb8 Qdd2 Bc5 Bd1 Rb3 Rd8 h8Q Rd6 Qg7 Qce3 Qc3 Qg5 Qf3 Qge7 Qf5 Rf6 Qh5 Rf3 Nd7 Rb8 Rb2 Ka8 a7 Rb7 Bd6 Nb8 Nbc6 Qee6 Rb5 Rb3 Bb4 g2+ Kg1 Rh3 Re3 Na6 Ndb8 Nc5 Re4 Nd7 Re3 Bc5 Re4 Rb6 Re3 Kb7 a8Q+ Kc7 a6 Qd5 a7 e4 Rf3 Qe5 Rf4 Qg8 Rf7 Qge8 Re7 Nf7 Kf2 g1N Kg2 Nh8 Kh1 Qf7 Qb7+ Kd6 a8B Nf3 Qc8 Ba4 Qcg8 Kc7 Bb7 Bb3 Bc8 Bd1 Bf5 Qb2 Bh7 Qd2 Nb3 Be3 Nbd4 Bg1 Re8 Nc5 Bg4 Kb7 Re7+ Ka8 Qd8 Nd7
1q4k1/1Q5N/5bK1/1B2BRp1/nPrQ1q1r/1N2RN2/P1rBnBbb/2B1Q3 w - - 0 1 illegal: No proof kernel
N3kq2/R2bB3/Q1n5/P7/2nr2Nr/2B1NNn1/pR2PQKN/1qbQ1r1B w - - 0 1 illegal: No proof kernel
4b1Q1/rB3n2/1B3kqn/p2Bq1R1/rq1BrP1b/4RNQ1/K1P2Q2/2B3NN w - - 0 1 illegal: No possible last move
q1Qn3r/2R1b2B/1K2N3/pQP3nq/1NrP1Bk1/Q3Q1B1/2b2QR1/3nb2R w - - 0 1 illegal: No proof kernel
N1qr1K1R/n1N3B1/B5QP/Bn1bq2N/2q2QQ1/1p1P2N1/5bRb/1kr3N1 w - - 0 1 illegal: No possible last move
N1bb4/1Bq5/1Bn1pqNK/NQ1R3R/Q1r2rk1/1B4P1/PnN5/R1N1nq2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 b5 Kf4 h5 d4 c5 a6 h4 f6 c4 f7 b4 d6 Ke6 a7 b3 g3 h3 d7 c3 g6 h2 Kg5 b2 f4 c2 g7 Rh3 d5+ Kd6 f5 Ke5 d6 Bb7 f6 Bc8 Na3 b1N Ba6 Bb7 Ne2 Bc8 Be3 c1Q Nc2 Nd2 Bb6 Nh6 g8B Rh4 Bb7 Nf5 Qf1 Qb2 Nc1 Qc7 d8N Nc6 d7 Nfd4 Qb5+ Ke4 Kg6 Kf3 Qa4 Rb8 a8N Rf4 Kh7 Bg7 f8N Kg4 f7 N4f3 Ng6 Bf6 f8Q Ne1 Bb3 e6 Qc5 Nc4 Kh6 Qbe5 Qcb5 Nb2 Rf1 Rc4 Rf5 h1Q+ Rh5 Qc3 Ba5 Qf1 Bb6 Na7 Nc6 Bd8 Na5 Qcf6 Bd4 Nc6 Bc5 Be7 d8R Rf4 Rdd5 Bd8 Ba6 Rb6 Bb7 Rc4 Qbb4 Rb5 Bb6 Rc5 Qab5 Rf4 Q4a4 Rcc4
Q4b1N/7r/1B1PP1b1/1B1R1bBR/2n2qNB/4nRp1/1kq1Q2r/Nq3BK1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 e4 c5 d4 a5 b4 g5 h4 f5 e6 Kd6 e7 a4 e8B c4 e5+ Kc7 b6+ Kb7 b5 a3 d6 f4 d7 a2 e6 g4 h6 f3 h7 c3 h5 c2 h6 Ne7 d5 Ra4 d6 Rf4 Nh3 g3+ Kg1 Rf6 Nf2 Rf7 Rh5 Qc7 d8B Nd5 Ng4 Nd7 Qe2 Ne5 Nd2 Ne3 Nb3 Bd7 Bh4 N5c4 Rd5 Re7 Bd2 c1Q Rb1 Qc5 Na1 Qb4 Rb3 Qc2 Bc3 Bc6 Bcf6 Qbd2 Bfg5 f2+ Kh1 Qd4 Bd7 Qf4 Rd3 Kb8 b7 Ka7 b8B+ Kb6 Ba7+ Ka5 b6+ Ka4 b7 Rg7 b8Q Re7 Rd2 Ka3 Qa8 Kb2 Bb6 Bb7 Bb5 Ba6 Nb3 a1Q R2d3 Qb1 Na1 Bb7 Rc3 Bc6 Ra3 Be8 Rc3 Bg6 Ra3 Rg8 h8R Rgg7 h7 Ra7 Rad3 Ra2 Rg8 Bf5 h8N Rh7 Rg6 Ng2 Rf3 Nge3 Rh6 Bg6 Qd1 Bf5 Rh5 Bg6 Be2 f1B Kg1 Bg2 Bf1 Bh3 Nf6 Bhf5 Qe2 Ra3 Ng4 Rd3 Qe1 Rd2 Qd1 Rf2 Qe2 Rh2
B1rn3Q/3N1k1K/2Qp3R/3Pb3/R2Nn1PB/B3qrb1/QN2q3/1B1r1Bn1 w - - 0 1 legal: proof: b4 e5 c4 b5 cxb5 g5 a4 e4 h4 d6 hxg5 e3 a5 Nd7 b6 Nh6 a6 Nf5 b5 Bb7 axb7 Nh6 fxe3 Ng8 e4 Nb8 e5 Ke7 Qb3 Kd7 Qd1 Ke8 Kf2 h5 Kf3 a5 Kf4 f5 e4 c5 d4 h4 g4 c4 g6 h3 e6 a4 e7 h2 Kg5 a3 g7 f4 Kg6 c3 e5 f3 d5 c2 Nd2 a2 Qe2 f2 Ngf3 Qc8 Nd4 Qc3 Nc4 Nh6 g8B Nf7 Nb2 Nc6 b8B Qc4 b7 Bg7 b6 Nb4 Bc7 Bf6 b8N Nd3 b7 Qb3 Bh7 Rf8 Nd7 Nd8 b8Q Bh4 Ba5 Rf5 Be1 Nc5 Qc7 Qe3 Qc6 Rf4 Kh6 Kf7 e8B+ Ke7 e6 Ne4 Bf5 Rc8 Kh7 Bg3 Nc5 Kf6 e7 Rf3 Bed7 Nb7 e8Q Nd8 Qh8+ Kf7 Qc4 Ra8 Bc8 Rb8 Bb7 Rc8 Bcd2 c1N Bb4 Ne2 Ba3 Ng1 Ba8 Ne2 Nd7 Ng1 Rb1 a1B Qa2 Qd2 Rc1 Qf4 Rc4 Qe3 Bg2 f1Q Ra4 Qfe2 Bf1 Nc3 Bb1 Ne4 Nd1 Bf4 Bh4 Bg3 Ne6 Bc3 Nb2 Bce5 Nd4 Nh3 Rg1 h1R Rg2 Ng1 Rh2 Rc7 Bf6 Rc8 Rh6 Rh2 Bh4 Rhf2 Bh3 Rf1 Bg2 Rc1 Bf1 Rd1
1b3nR1/1bkB2RQ/2PR1n2/2N2K1N/B1Q4r/1P1B1nq1/pBrr3q/1B3Q2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Ke3 Kd7 Kf4 h5 c4 a5 g4 a4 c6+ Kd6 b6 e6 f6 a3 c7 d4 g6 h4 f7 d3 c5+ Kd7 g5 e5+ Kf5 e4 f4 d2 g7 e3 b7 e2 g6 e1N Qg4 d1R Nh3 a2 Nd2 Nc2 Rg1 Rh6 Ne4 Qe7 Bd3 Nf6 g8B Qe8 g7 Rd2 Bh7 Ra3 g8B Nc6 b8Q Qd8 Qb7 Bg7 f8R Ne8 Bb3 Nf6 Rg8 Ne1 Ba4 Nf3 b3 Rg2 Bb2 Rd2 Rad1 Qe7 Qa7 Bb7 c8B+ Kc7 Bd7 Nd8 c6 Ne6 Nc5 Nf8 Bb1 Rc2 Rd6 Qe1 Bg6 Qg3 Rg2 Ne1 Qe2 Nf3 Qc4 Qe1 Rg4 Qg3 Bh7 Bh8 R4g7 Rd2 Ng5 h3 Nge4 h2 Bd3 Ne8 Nf6 h1Q Nh5 Nf6 Rg6 Qgg1 Rd4 Ne1 Bf1 Rg2 Bb5 Rd2 Qc3 Qhh2 Ke5 Ne8+ Ng7 Ra4 Qa6 Qgg3 Qd3 Rb4 Ba4 Qhf2 Qe4 Qge3 f5 Kd8 f6 Rh4 f7 Ne6 f8Q Rc4 Qf3 Rc1 Qc4 Nf8 Be2 Qg1 Qf1 Qh2+ Rg3 Qf3 Qf5 Qc3 Qff7 Qf3 Bb1 Rcc2 Bd3 Qfg2 Kf5 Nf3 Rg5 Qgg3 Nh5 Be5 Qh7 Nf6 R5g7 Bb8 Rd6 Kc7
7R/1r2B2b/N1P1np2/1r2R1NR/1bb1qP2/BQ5B/K1nBnqNk/1Q1B4 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 e4+ Ke6 f4 d5 c4 a5 h4 g5 b6 d4 c6 d3 b7 a4+ Ka2 g4 c7 g3 c5 a3 h6 d2 c6 g2 h5 Qe8 h7 Nh6 Nc3 Be7 Nd5 Bc5 Nf3 g1Q Qb3 d1B Bd2 Nd7 b8B Qg3 Bh3+ Ng4 h6 Qg2 Ne3+ Ke7 e6 Kf6 e7 Bb4 Ng5 Qf2 Ng2 Bc2 e5+ Kf5 e6 Ra5 Rae1 Ba6 c8Q Nc5 Bd6 Bc4 Qb7 Rb5 Qb8 Rg8 h8B Rg7 h7 f6 Re5+ Kg6 Qb7 Kh5 Qb6 Qg6 e8B Ne3 e7 Nf1 Rh2 Rf7 Bg7 Ne6 Bf8 Ng3 h8R+ Qh7 Bd7 Ne2 e8N B2d3 Bc8 Rb7 Nc7 Be4 Bde7 Bf5 Ne3 Kh4 Na6 Kg3 Ng2+ Bfd3 Bg4 Qe4 Bf3 Bc2 R2h5 B2d3 Qd4 Bc2 Qa1 B2d3 Qb1 Bc2 Ka1 a2 Kb2 a1N Ka2 B2d3 Bg4 Nc2 Bh3 Ng7 Bcg4 Kh2 Bf3 Ne6 Bfg4 Ba5 Ba3 Bb4 Be7 Qee3 Bf3 Bh7 Bfg4 Qe4 Bf3 Ne2d4 Bd1 Ne2
1r1qBK2/NQBN2PP/2B1b3/1rR2nQp/B2q1Q1N/1brk2b1/5R2/B1n5 w - - 0 1 illegal: No proof kernel
3N3q/KNBBBP2/2R1p1Pq/n7/2qB1r2/N1R1r2k/nBb1Q3/QnbQ4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 a5 Kc5 h4 d4 a4 b4 e6+ d6 c6 f4 a3 g4 h3 b6 h2 d5 a2 b7 Bd7 g6+ Kf6 g7 Qc8 Kb6 c5 b5 c4 g5+ Kf7 f6 Kg6 f5+ Kh7 f7 c3 f6 Kg6 Bb2 Kf5 g6 c2 Qe2 c1Q Nh3 Qd2 Nf2 Rh4 Nd3 Be7 f8B Rha4 f7 Qcc3 Nc5 Qh6 Na3 Qg5 Rc1 Qce3 Rc3 Nc6 b8B a1N Bc7 Qc1 Nb7 Nf6 g8Q Nb3 Qg7 Nb4 Qh8 Be8 d7 Na5 d8N Qh6 d6 Na2 d7 Ne4 Be5 Bd6 Be7 Nd2 Bd4 Nb1 Qg7 Rb8 Ka7 Bf4 b6 Bd2 Rg1 h1Q Rgg3 Q1h4 Rc6 Qc4 Rc3 Qh8 Bg2 Q4h6 Be4+ Kf4 Bc2 Rb4 Ba4 Be3 Qf6+ Kg3 Qff1 Nd2 Qa1 Kh3 Nd6 Nb1 b7 Rc8 b8B Rb3 Bc7 Rb4 Rc2 Bc1 N6b7 Rb3 Bb5 Re3 Rc3 Rb8 Nd6 Rb6 Ba4 Rb5 N6b7 Rb4 Rd6 Qg5 Bc5 Qgf4 Nc6 Qfh4 d8Q Qcd4 Qd7 Qd3 Ncd8 Q4h6 Rb6 Qb5 Qdd1 Rf4 Bd4 Qc4 Bb5 Bc6 Ra6 Bg2 Bd7 Be4 Rc6 Bc2
1N2Q3/Q2KPnrn/q1q2B2/NbR1q3/1b4k1/1P1B1r2/Q1R3p1/2nBBNB1 w - - 0 1 illegal: No possible last move
1k3NRr/1b1npPN1/1QP1N2Q/K3R1rQ/2nR1q2/5bN1/1B2N1B1/bq3r2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 a5 Kc3 d5 f4 Kd7 b4 Kc7 h4 g5 f6 a4 f7 a3 b6+ Kb7 b5 g4 Kb4 a2 c4 d4 h6 g3 h7 g2 h5 d3 h6 d2 f5 Ra7 f6 Qd3 c6+ Ka8 c7 Qd4 Qh5 d1B Ne2 g1Q Bb2 Qh2 Ng3 Bd7 c8N Bc2 Nc3 Bc6 Rd1 a1R Bg2 R1a2 Nd6 Qdg1 c5 R7a5 b7+ Ka7 b6+ Ka6 Ndf5 Bf3 c6 R2a3 Rd4 Qa1 Nce2 Qc1 Re1 Qb1 Ng7 Nd7 b8R Ra2 b7 Ka7 Rd8 Rg5 b8Q+ Ka6 Qb5+ Ka7 Rb8 Ba4 Ka5 Ne5 Re8 Ra1 Qb3 Bg4 Qb5 Bc8 Qb6+ Ka8 Nf4 Qh1 Ba3 Ng4+ Rd5 Ne5 N7f5 Bg7 f8Q Qf1 f7 Qbd3 Ne6 Nf6 Re4 Rg8 h8N Qfd1 h7 Q3b3 Ng6 Qg4 h8N Nfd7 Ngf4 Rf1 Nhg6 Rh8 Rd3 Bf6 Qfh6 Qb1 Nfg7 Bd1 Rg8 Bf3 Ngf8 Bb7 Nfe2 Kb8 Rd5 Qf4 Bc1 Ng4 Rf5 Ba1 Rd4 Ne3 Bb2 Rh7 Rfd5 Rh8 Re5 Nc4+
QNb2Q1r/B1NP1qnB/2rnB2b/2R4K/3BN1p1/1n1Q1P2/2q2R1B/3q3k w - - 0 1 illegal: No possible last move
5k2/RP1br2r/Br1PBK2/n1np1N2/B2NQR2/B2qq1B1/1n4Nb/3R1Q2 w - - 0 1 illegal: No proof kernel
2R1BNB1/P2rQB1Q/2n3pR/nBP2bR1/1K1B3N/1b6/Nq2rb1q/2r2k2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 e4 d5 h4 f5 a4 b5 a6 d4+ Kb4 d3 c4 f4 a7 f3 h6 d2 a5 f2 h7 Nf6 a6 Be7 h5 Ng4 h6 Nf6 Bb2 Re8 h8N Qd5 h7 Bd6 Rh6 Re7 Bd4 Rf7 Nf3 Bc7 c6 Rd7 c5 Qd6 Qe1 d1B Nc3 Bb3 Ng6 Ng8 h8Q Ne7 Qh7 Bd8 Bd3 f1R c7 Rg1 Na2 Nec6+ Kc3 Rg2 Nfh4 Na5 Kb4 Re2 Rb1 Bg5 Rc1 Be3 Nf8+ Kf7 Rc4 Bf2 e6+ Ke7 e5 Nbc6+ Kc3 Rb8 a8B Rb7 a7 Rb6 Bg6 b4+ Kd3 Rb7 Bf7 g6 Rc2 Bd5 Rd2 b3 Kc3 b2 Rd3 b1Q Rg3 Rbb2 Rg5 Bb3 Bb7 Rbd2 Ba6 Rd1 Bb5 Nb8 Kb4 Rc1 Bc4 Qb2 Bd5 Bb7 Bc4 Be4 Bb5 Bf5 c8B Kd8 e7+ Kc7 e6 Qe5 e8B Qh2 Bba6 Kc6 Bb5+ Kd5 e7+ Ke4 Bg8 Rd8 Bce6 Rd7 B6f7 Kf4 Rgh5 Kg3 Rg5+ Kh3 Qc3+ Re3 Qe1 Rd5 Bed7 Re6 Qe5 Rdd6 Qf6 Re2 e8R Rd5 Rd8 Rd6 Bde8 Rd7 Rgh5 Kg3 Qe7 Kh3 Rc8 Kg3 Nf3 Kg2 Nh4+ Kf1 Rg5 Nbc6+
1r3Nk1/1b5r/b3b1n1/1RBBQ3/N3nBP1/p3PRb1/b1NN4/Nq2QR1K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 d5 b4 f5 g4 Kf7 Kg2 a5 c4 h5 e6+ Kg7 c6 h4 c5 f4 e3 d4 b6 d3 b7 a4 b5 d2 e7 Nh6 e8Q Rh7 b6 Qf6 g6 Qd4 c7 Qd6 c6 Qf6 Na3 Qd4 Rb1 Qd7 Qe1 d1B Nf3 Bc5 Bc4 Qe6 Rb5 Qd7 Qe5+ Kf8 Rf1 h3+ Kh1 h2 Nc2 Ra7 Nd2 f3 Nb3 f2 Nba1 Qd4 Ba3 Qd3 Bd5 Nf7 g7+ Kg8 Bb4 Bf8 Bc5 Na6 b8B a3 b7 Be6 c8N Nh8 c7 Ng6 Nd6 Ra8 Nc4 Bd6 c8N Qb3 N8b6 Qb1 Bc7 Rb8 Na4 Be2 Nd2 Bc4 Nf3 Ba2 Nd2 Be7 B7d6 Bh4 Bc7 Bg3 B7d6 Rf8 b8N Rc8 Nd7 Rb8 Ba7 Nc5 Nf8 Ne4 Bac5 Rh4 Qb2 Rh5 Bf4 Rh7 Qe5 Kf7 Rg1 f1B g8R Bfc4 Rf1 Be2 Kg2 h1B+ Kg1 Nh8 Rg5 Ng6 Rf5+ Kg8 Rb7 Ba6 Rb5 Bg2 Rf3 Bh3 Kh1 Bf1+ Rh5 Bd3 Rh3 Bb7 Rf1 Bh4 Rhf3 Bdc4 Rb2 Bca6 Rb5 Bg3+
rRB2nB1/2K2R2/2BQ1RP1/1r1r1N2/bnk1Nq2/B3b2p/rBr4P/Q3Q3 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 Kd2 Ke7 Kc3 Ke6 Kc4 f5 e4 a5 g4 h5 b6 d5+ Kb5 d4 c4 d3 g6 h4 b7 d2 g5 a4 g7 a3 c6 f4 c5 a2 c7 f3 Kb6 f2 g6 h3 c6 Qg5 Ne2 Qf4 Nd4+ Ke7 e6 Kd6 e7 Ra7 e8R Rh6 e5+ Kd5 e6 Ra3 e7 Qf6 Bg2+ Kc4 Rf1 Qd6 Nf5 Rh5 Nc3 Qd3 Bb2 Qg3 Ne4 Na6 b8B Bd7 c8Q Nb4 c7 Ra8 Qd8 Ba4 c8B Qf4 Bd6 Nf6 Kc7 Nh7 Qe1 d1R g8B+ Rd5 Rc1+ Kd3 Rc6 Bh6 Qa1 Nf8 Qd7 Rg5 Rd8 Rh5 e8Q Bg5 Ra6 Kc4 Qe5 Bh6 Be7 Rg5 Qdd6 Rh5 Qe1 a1R Rb6 Bg5 Rb8 Ra3 Rd7 Ra2 Qd4+ Kb3 Qdd1+ Kc4 Qa1 Bh6 Bef6 Bg5 Ba3 Bh6 Bfb2 Rg5 Rh1 f1R Rf7 Rf2 Rf1 Rb5 Neg3 Rc2 Bc6 Rh5 Ne4 Rg5 Ne7 Rgd5 Rf2 Qh4 R2f6 Be3 Nf5 Qf4
2NbkN1r/1r2bn1p/2KQr3/R1QB3N/Q5rn/P1R3BP/2q4R/N2r1N2 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Kd7 f6 Ra6 f5 Qe8 f7 Rd6 f6 Qd8 bxa3 Rb6 a4 Ra6 a5 Ra8 Nc3 Kd6 Nb1 Bf5 gxf5 Kd7 Kf2 b5 Ke3 e5 Ke4 c5 d4 g5 d6 g4 Kd5 b4 a6 b3 a7 e4 h3 b2 Nd2 b1R Qa4+ Rb5 Bg2 g3 Rh2 e3 Ngf3 e2 Nf1 e1R Bf4 Re4 Ne1 Re3 Nc2 Be7 f8Q Qa5 f7 Qd8 f6 Kc8 d7+ Kb7 a3 Re1 Rc1 Re6 Na1 Qc8 d8Q Nd7 Rc3 Ne5 Qd6 c4+ Qc5 Rb8 a8N Nh6 Nb6 Nf3 Bh1 g2 Bg3 Bd8 Qd6 g1B f8R Nh4 f7 Rb4 Bf3 Qc7 Nc8 Be3 Re8 Beg5 f8N Nf7 Bh1 Re3 Re5 Bge7 Ne6 Re4 Ng7 Rg4 Nh5 Rb6 Rce3 c3 Rg5 c2 Rc3 Rb1 Rf5 Re1 Bf3 c1R Rg5 Qa5 Bh1 Ka8 Kc6 Rb7 d5 Re6 Qcc4 Qa7 Rf5 Re5 Qe6 Kb8 d6 Ba5 d7 Rd1 d8N Qf2 Qd6+ Bc7 Qcd4 Qc2 Ne6 Re2 Ra5 Re5 Q6c5 Bcd8 Nd6 Ree4 Nf8 Re3 Qde5 Re2 Bd5 Ree1 Nc4+ Kc8 Qed6 Re6 Nd7 Bc7 Ncb6+ Kd8 Nc8 Ke8 Nf8 Bcd8
3rN3/QRP4b/1BB1PbRb/B1B4b/q3QnN1/p5K1/1kB1N3/nb3R1r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 h4 Ke6 c4 f5 e4 d5 b4 a5 c6 g5 h6 a4 c5 d4 b6 f4 b5 a3 h7 d3 h5 g4 c7 d2 c6 f3 b7 Bg7 h6 Qd3 b6 Nd7 b8R Ne7 b7 Qd5 Kg3 f2 Ne2 Qc5 Rg1 Bf8 Nbc3 Ra5 Qa4 d1B Nd5 Ra6 Nf6 Ra8 Bg2 f1B Bd2 Qd5 Ba5 Qb5 Qc2 Rg8 h8B Nc5 h7 Bh6 Qa4 Bd7 c8B Rd8 c7 Ng6 Bg7 Rh8 Bf8 Nb3 Bc5 Nf4 Qd4 Rd8 h8B Qa4 Bh1 Bh3 Qe3 Bc2 Raf1 Bb1 Qd4 Na1 Qb4 Kf7 e6+ Kg6 e5 Kf5 Qd4 Be8 Bc6 Bh5 B8d7 Bg2 Be8 Bd5 e7 Bg8 e6 Bh7 Qb4 Ke5 Bg6 Rd1 e8N Rc1 Bc2 Re1 Kh4 g3 Bg7 g2 Kg3 Rd1 Bcb6 Rc1 Bf8 Re1 Bfc5 Rc1 Rh1 g1B Rh4 Be3 Rg4 Bd4 Rg6 Rd1 Bb5 Rc1 Ng4+ Kd5 Qe1 Bf6 Bc6+ Kc4 Rc8 Nd3 b8Q Nf4 Qa7 Rd1 Rb8 Rd8 Bd3+ Kb3 Rb7 Kb2 Bde4 Rd1 Bc2 Rad8 Qb4+ Nb3 Qe4 Na1 Rf3 Rh1 Rf2 Bhg7 Rf1 Bh6
rbb1K1R1/PB2p1nk/2Q2b2/1nb2P2/1r2N1bB/5BN1/QQ4qN/RB1B4 w - - 0 1 illegal: No proof kernel
1Qb2Q2/QR1R1Nr1/b1rK3B/3N2q1/k1B4b/3pP1P1/B1nr1r2/1N1Q1Qn1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 f5 Ke3 d5 Kf4 Kd7 c4 h5 b4 a5 c6+ Kc7 g6 Kb6 g3 a4 g7 h4 c5+ Ka7 c7 d4 e6 h3 Ke5 h2 b6+ Ka6 c6 Kb5 b7 f4 e7 f3 e8N a3 Nh3 f2 Bh6 a2 Ng5 Ne7 g8B Ra6 Nf6 Nd7+ Kd6 Rh7 Nd5 Rg7 b8Q+ Rb6 Rg1 h1R Qa7 Rh2 Nf7 Rg2 Qc1 Ra6 e3+ Ka4 Bc4 f1B b5 Rf2 b6 Rd2 b7 Ne5+ Kc5 Be2 b8Q Nf3 Qf1 Bd3 Rh1 Ng1 Rh5 Be2 Re5 Nf5+ Re7 Nd6 Rd7 Qg5 Qb2 Be7 Qbc1 Bf6 Qce1 Nf5 Qc1 Nh4 Kd6 Ng2 Qce1 Bd3 Qee2 Ne1 Qg4 Nc2 Qgd1 Bb7 c8Q Rf2 Qcb8 Bc8 Nd2 Be2 Rb1 a1R Rbb7 Ra2 Nb1 Rb2 Ba2 Bb5 Bc4 d3 Ba2 Ra5 c7 Ba6 Bc4 Rc5 Re7 Bd7 c8Q Rd2 Qf8 Bc8 Red7 Bd8 Qf5 Rc6+ Ke5 Qg4 Qff1 Bh4 Ba2 Rc4 Kd6 Qg5 Qaa8 Rc7 Qaa7 Re2 Nf6 Rf2 Ne5 Rc5 Bgc4 Rc7 Qc1 Ne1 Nf7 Rbd2 Qd1+ Nc2 Nd5 Rc6+
k7/3R1b2/2R1rR1n/1q2N1bb/1B2Q1nP/3r2Q1/nbRpN2P/1B1RBQ1K w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 h5 d4 e5 dxc5 h4 fxe5 h3 gxh3 Be7 h4 Bf8 Kf2 a5 Kg2 f5 c4 g5 e4 d5 b4 Kd7 b6 Kc6 b5+ Kb7 e6 f4 e5 d4 e7 a4 e8R a3 e6 a2 e7 g4 Nf3 g3 Bd3 Ra6 c6+ Ka8 b7+ Ka7 c7 Rd6 c5 Bf5 c8R Qa5 c6 Nd7 b8B+ Ka8 c7 Ne5 b6 Re6 Bd2 Bg4 Red8 Nh6 e8Q Be7 Bb4 Bg5 Nc3 Qb5 Qf1 Bh5 Bb1 d3 Rd7 d2 Ne2 Neg4 Ne5 f3+ Kg1 g2 Qg6 Rh7 Qe4+ Rc6 Rf8 Rh8 Rf4 Rd8 c8R Bf7 Rf6 Bh5 Qc4 Re6 Rc6 Bf7 Qe4 Bh5 Rb7 Rd3 Rd7 Bf7 Bc2 Bh5 Rc1 a1B Bb1 Bb2 R1c2 Ne3 Kf2 g1N Kg3 f2 Bc7 Nd5+ Kg2 Nf3 Rg1 Nc3 Kh1 Na2 b7+ Ka7 Nc4 Bf7 Bg3 Bh5 Ne5 Kb8 Qg2 f1B Be1 Bf7 Qf2 Bh3 Qf1 Bg4 Rc1 Bgh5 Rd1 Bf4 Rc2 Ka7 Rgg6 Bg5 b8Q+ Ka6 Nc6 Ne5 Qd6 Neg4 Qg3 Kb6 Ne5 Ka6 Rd4 Ka7 Rd8 Re8 Rd7+ Kb8 Rfc6 Re6 Rf6 Ka8
2n1n1Q1/RrRr1B2/2NN2Kb/3Q2B1/Q6P/1bR2RP1/n2qbpk1/1N3Rn1 w - - 0 1 illegal: No proof kernel
2Q2n1Q/1NB2Nr1/b1nQ1Q1B/1rR2Q2/1kp4P/1rq5/1br2PR1/2RBK1n1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 Kd7 b4 Kd6 h4 a5 b6 g5 f6 e5 b7 c5 b5 g4 h6 a4 h7 a3 f7 a2 b6 e4 Na3 e3 Be2 c4 Nf3 g3 Nb5+ Kd7 d6 Kc6 d5+ Kc5 d7 g2 d6 g1N Ne5 Bg7 f8Q Ne7 Nf7 Nd5 Rh2 Nf4 Rg2 Qe8 d8Q Ne6 Qf6 Nc6 b8B Rg8 h8Q Ra5 b7 Kb4 d7+ Qe7 Qf5 Bb2 d8R Rg7 Nbd6 Rb5 Bc7 Qf6 b8Q Ba6 Rc8 Qe5 Bh5 e2 Bh6 Qg3 Rc1 a1R Qd4 Ra3 Qdf6 Rb3 Q8d8 Qf3 Nb7 Nf8 Qdd6+ Ka4 Kd2 e1R Qa8 Qh3 Bd1 Re3 Qb8 Rc3 Ke1 Rc2 Bd8 Ne5 Rc5 Nc6 Bc7 Kb4 Qbc8 Qc3+
R2Q1b2/4QBrb/2r1Q3/2rq4/PkNR4/1n2rPp1/2Q1K1BR/3NbQBn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 a4 Kd6 h4 b5 h6 g5 h7 e5 f6 c5 f7 g4 a6 g3 a7 c4 h5 b4 h6 b3 Nh3 c3 Nd2 c2 Bc4 e4 Rh2 b2 Ke2 Bg7 f8Q+ Kc7 d6+ Kb6 d7 Ka5 d5 b1R d6 e3 Bf7 Rb6 Nc4+ Kb4 Qe8 Qh4 d8Q Rc6 d7 Qe4 Qe6 Nf6 Qf1 Rg8 h8R Na6 h7 Nc5 Qde7 Bf8 d8Q Ng4 Qdc7 Rb8 a8B Rg7 Ra3 Qd4 Rd3 Qd5 Rd4 Rb7 Bb2 c1R Rg8 Rb5 h8Q Rc3 Qcd8 Rb3 Qh7 Bd7 Qc2 Rc3 Q6f6 Bf5 Qfe6 Bh7 Bb7 Rd6 Rh8 Nb3 Ba8 Rc5 Ba1 Qg5 Bg2 Qd5 f3 Rdc6 Nf2 Rd3 Nd1 Nf2 Bb2 Nh1 Bc1 Rc3 Bd2 Na1 Be1 Nb3 Bf2 Rd3 Bg1 Rc3 Ke1 e2 Rg8 Na5 Kd2 e1B+ Ke2 Nb3 Qh4 Bd6 Qde7 Rd3 Ra8 Rc3 Qd8 Bf8 Qhe7 Re3+
2N1K1b1/7r/RB3r1R/1R2Nb2/PpBq1B2/P1kr1RQN/2n1b2Q/2n1b2R w - - 0 1 legal: proof: h4 d5 f4 e5 fxe5 g5 hxg5 a5 c4 a4 cxd5 a3 bxa3 Bg4 a4 Bc8 Kf2 Kd7 Kf3 f5 Kf4 c5 d4 h5 e4 b5 g4 h4 d6 Ke6 g6 b4 g5 c4 a3 h3 d7 c3 g7 c2 d5+ Kf7 g6+ Ke7 Kg5 f4 e6 Kd6+ e7 Ke5 d6 h2 Bc4 f3 Nd2 Kd4 e5 f2 e6 f1B Qh5 Rh6 Ndf3+ Kc3 Nh3 Ba6 Bf4 c1R Ne5 Qb6 e8N Qc5 d8R Rc2 e7 Bd3 d7 Bf5 Raf1 Rd2 Nd6 Rh7 e8R Rd3 Nc8 Ne7 Kf6 Nbc6 Kf7 Qd4 Rf3 Nd5 Re6 Bd6 Rh8 Ne3 d8B Na5 Bb6 Nc2 Ke8 Nb3 g8Q Nc1 g7 Be7 Rc6 Bh4 Rc5 Ra7 Rb5 Be1 Qh4 Rh6 Qh7 Rc6 g8R Rf6 Qg3 Rg7 Qh6 Rc7 Rg6 Rh7 Rg1 h1B Rgf1 Bg2 Rh1 Bf1 Qhh4 Be2 Qh5 Ra7 Rhh6 Bb7 Qhh4 Bd5 Qh2 Bg8 Q4g3 Rff7 Ba5 Rad7 Ra6 Rf6 Bb6 Rh7
2Q2B1k/n2n4/1rBbq1Rr/2N2QQp/rB2PNr1/1b1n2KQ/4P1Q1/NR6 w - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 e5 cxd5 b5 a4 e4 axb5 e3 fxe3 Nf6 e4 Ng8 Kf2 h5 d4 f5 g4 Kf7 b4 Kg7 g6 a5 b6 c5 d6 c4 b7 a4 g5 c3 b5 c2 b6 f4 d7 a3 d5 a2 d6 f3 Na3 Na6 b8N Nb4 b7 Ra7 Bd2 c1R Na6 Rc2 b8B Nh6 Kg3 f2 Rb1 a1R Bh3 Qa5 d8Q Rc5 d7 Rf5 Nc5 Ba6 Qf1 Bc8 Nc2 Qa6 Qa5 Nd3 d8Q Qe6 Bb4 Ng8 Bd6 Ra4 Na1 Rb7 Qd7+ Be7 Qg2 Rh6 Bg4 Kh8 Nh3 Rb6 Nf4 Rf8 Rhg1 Nf6 Qh3 Bb7 Qc8 Nd7 Bf5 Bd5 g7+ Kg8 Bg6 Bb3 Be8 f1N+ Kg2 Ne3+ Kg3 Nb8 Bc6 Nd7 Qb5 Ng4 Qa5 Kf7 g6+ Kf6 g8Q Nge5 g7 Rf7 Bb7 Nc6 Qgf8 Na7 g8Q Bd8 Qgg4 Bc7 Bc6 Bb8 Qfg8 Rg7 Bf8 Bd6 Qh7 Kf7 Qf5+ Kg8 Qb5 Kh8 Qg2 Rf7 Q4h3 Rg7+ Kf3 Rg4 Qa5 Rh4 Kg3 Rb7 Qad8 Rb8 Qdg5 Rb6 Rgd1 Nf2 Rd5 Nd3 Re5 Qe7 Re6 Qf7 Rf6 Qe6 Rg6 Rg4+
N4QR1/1b1Bb1RN/4rQ1K/Q1r2p1Q/2n2B1P/1PQ2n1B/5n2/1bqn1N1k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 c4 d5 h4 f5 e4 g6 b3 a4 b6 a3 h6 d4 h7 d3 b7 d2 c6 a2 c5 Ra7 c7 Bd7 c8N Qe8 Kg5 Nh6 c6 Ra8 c7 Ra6 Qe1 d1B Bf4 Nc6 b8Q Ng4 Nh3 Bc2 Qa5 Nf2 Rg1 Be7+ Kh6 g5 Nd2 g4 Nb6 g3 c8Q g2 Na8 Bb1 Qcc7 Qf7 Qf8 Bc8 Qcd8 Rg8 h8Q Bb7 Qc3 Qe8 Qda5 Qc8 Qhg7 Rb6 Qg5 Rb5 Qh5 Rc5 Ng5+ Kd7 Qg7 Re8 Nh7 Ke6 Qf8 Na7 Qg7 Nb5 Qgg5 Na3 Qf6+ Kd7 e6+ Kc6 e5 Kd5 Qfg5 Nc4 Qf6 Bd3 Re1 a1N Re3 Qc7 Rg3 Nc2 Rg7 N2e3 Rg8 Ned1 Rg7 Bd8 e7 Bb1 e6 Qc8 Rh1 g1N Bh3 Nf3 Rhg1 Qc6 Nf1 Ke4 R1g3 Qd7 R3g5 Qd2 Rg8 Qc1 R5g7 Rf8 e8B Be7 Bd7 Rfc8 Qhg6 R8c6 Qg4 Bf8 e7 Re6 e8Q Be7 Qf8 Ne1 Qb6 Bc6 Qb2 Bb7 Qgg6 Kf3 Qbe5 Ne4 Qa5 Nef2 Bg4+ Kg2 Bh3+ Kh1 Qec3 Nf3 Qge8 Nd6 Qh5 Nc4
2B1K3/2bR1N2/r3RRN1/Pn2b3/1r1pP1b1/1Nkb1rB1/2BqQ3/1BQn1B2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 h4 f5 a4 b5 c4 b4 a6 g6 c6 d4 a7 b3 h6 b2 h7 Qd7 Kg5 f4 a5 f3 c5 Kd5 e6 Kc4 c7 f2 h5 Bg7 e7 Kb4 e8B Qf7 c6 Qf8 h6 Nd7 Nd2 b1R Nh3 Qf7 Nf4 Qf8 Nb3 Ba6 c8Q Ngf6 c7 Nc5 Ba4 Nd5 e4 Kc3 Qe2 Rg8 h8N Be5 h7 Nb7 Nf7 Qb4 h8R Rf8 R1h6 Ne3 R8h7 Nd6 Ra2 Nb5 Rg7 Rb8 a8B Rb6 Bd5 Nd1 Bc4 Bb7 Bd3 Ra6 Bc2 Rb2 Bb1 Bc6 Be3 Bd7 Bc1 Bg4 Be3 Bd6 Kf6 g5 Ng6 Bf4+ Qe6 Bh2 c8B Bd6 Bf4 Bc7 Bh3 f1B Bg3 Bf3 Qb6 g4 Ke6 Be5 Kd7 Bc7 Qf6 Be5 Qg5 Bc7 Qee3+ Bd3 Qe2 Be5 Bf1 Bc7 Bd6 g3 Ke7 g2 Qc1+ Rc2 Kd7 g1B Bg3 Be3 Ra1 Bef4 Ra3 Bfe5 Ra1 Rg8 Rgh7 Rg7 Ke8 Bg4 Ra3 Kc4 Ra2 Qd2 Rb2 Kb4 Ra2 Rcc6 Rc2 Rf6 Rc6 Rf3 Re6 Qe1 Rh5 Qd2 Rf5 Qh6 Rff6 Qd2 Nfh8 Rd7 Rhf7 Rdd6 Rd7 Rdb6 Nf7 Rb8 Nc5 Rbb6 Bac2 Kc3 Nb3 Rc6 Ree7 Rc4 Ree6 Rb4
bR2B1QR/1Nr2n2/1N1RP3/B1NP4/5b2/n2qnpN1/KN1Q4/B1r1r1kr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 Kd2 f5 Kc2 c5 Kb3 a4+ Ka2 a3 e4 f4 e6 Kd6 e5+ Ke7 d6+ Ke8 b6 g4 e7 Kd7 e8N Kc6 b5+ Kd5 b7 Ke4 d7 g3 d5 g2 e6 f3 h6 c4 h7 c3 h5 c2 h6 Bc5 b6 Bf2 Nf6+ Ke5 Nc3 Qe7 d8N Nd7 b8R Ra7 b7 Nb6 Nge2 g1R Na4 Be3 Ng3 Kf4 Bb5 Nc4 Nd7 Re1 Bd2 c1R Ndc5 Qg5 Bb4 Qg6 Qd2 Qd3 Nb2 Bd7 Rh5 Bc6 Ba5 Kg4 Rh2 Bf4 Rh5 Ne3 Rb1 Bd7 Bc6 Bc8 Be8 Bd7 Ra1 Bc6 Rh3 Nf6 Rh1 Nd7 Rh5 Ne5 Rh1 Rf8 h8Q Nf7 h7 Rg8 Rb1 Rg6 Qf8 Rh6 h8B Rh2 Qg8+ Kh3 Qb4 Kg2 Qd2+ Re2 Bf6 Rh5 Rh3 Kg1 Be5 Ree1 Ra1 Rf5 Rh8 Rh5 Bf6 Rcd1 Rc1 Rh1 Rc3 Rc1 Rb3 Bd7 Rb6 Bc6 Bfc3 Ba4 Rd6 Bc6 Kb3 a2 Ka3 a1N Ka2 Qd4 Nca4 Ng2 Nb6 Ne3 N2a4 Rh4 Rc8 Nb3 b8N Rc7 Na6 Rh1 Ba1 Qd3 Rb8 Nd4 N6c5 Nb5 Nb2 Ba8 Ndb7 Na3
B3B3/n3q3/1bnP2B1/1nK1bP1N/Q1b3Rn/B1R1rNQr/4p3/k1B2NQ1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 h4 g4 a4 b6 c6 f6 a3 g6 a2 g7 e6 b5 h3 f7 h2 g5 Nf6 g8B Rh3 f5 Bb7 g6 Ne4 g7 Qe7 Qa4 Nc3 Nf3 Ba6 Rg1 h1N b7 Ng3 b6 Bc4 Bh7 Nge4 g8B Ng5 Bg2 Ra7 Bg6 e5+ Ke3 Kc5 d6 e4 d4+ Kd5 d7 c5 d8N Nb5 Ne6 Nc6 b8Q Rb7 Qba8 Nba7 Nd2 Bh6 Rb1 a1B f8B Bg7 Rb5 Be5 Nf1 Bc3 Qe8 Ba5 B8f7 Rb8 b7 Bb6 Rb3 Rd8 Kd2 e3+ Kc3 e2 b8Q Rd6 Ng7+ Re6 Nh5 Ke4 Kb2 Kd5 Ka3 Ke4 N3h2+ Nf3 d5 Kd4 Rc3 Nh4 Qc7 Bh8 Qeb8 Ree3 Qg3 Bg7 Be8 Be5 Qc2 Ba6 Qf2 c4+ Qd6 Bb5 Be4 Ba6 Rg4 Bb5 Qg1 Ba6 Rb3 c3 Nf3+ Kc4 Qa2 c2 Ka4 Bf6 Qdg3 Be5 N3h2 Kd4 Rc3 Bc4 Qb3 Qb7 Bfa3 Qe7 Bcb2 c1N d6 Na2 Bc1 Nb5 Qb4 Nca7 Qb3 Nb4 Ba8+ Bf4 Qa2 Nbc6 Nf3+ Ke4 Qb3 Kd5 Rc2 Ke4 Qb4 Kd3 Qa5 Be5 Qa6 Ncd4 Kb4 Be6 Rb2 Bc4 Rb3+ Kc2 Rc3+ Kb1 Qa5 Ka1 Qa4 Bd8 Kc5 Ndc6 Qh1 Bc7 Qhg1 Bb6+
1bkN4/br1nQ3/NP3Bp1/4P1n1/3R3r/1B1K3b/1RbQQBQq/RrQ5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 d4 c5 Kd2 f5 e4 a5 b4 a4 e6+ Kc7 h6 f4 h7 c4 b6+ Kb7 d6 a3 b5 a2 d7 c3+ Kd3 c2 d5 g6 h5 f3 e7 f2 e8Q Qc7 d8Q Qe5 d6 Nc6 d7 Nb8 h6 Ne7 Na3 Nbc6 Ne2 Qh5 Rh4 Qf3+ Be3 c1R Nd4 Rb1 Nac2 Nd5 Qde7 Bg7 d8Q+ Kb8 b7 Ra5 Nb4 Nc3 Ne6 Qg3 Qc1 Qh2 e5 Ra7 Rd4 Ne4 Be2 f1B Bf2 Bg2 Bd1 Bf3 Bb3 Bd1 Q8f8 Ng5 Qf3 Bf8 Qg2 Bf3 Qd5 Bd1 Nd8 Bh3 Qdf3 Ne4 Qe2 Ng5 Qe8 Kc7 b8R Bd6 Qe6 Rb7 Na6+ Kb6 Qe7 Ka7 Rc8 Nb8 Rc2 Nd7 Rb2 Bb8 Qcd2 Rf8 h8B Rf4 h7 Rh4 Bf6 Kb6 Nb4 Kc7 h8Q Kc8 Na6 Rc1 Rab1 a1B Qhg7 Nh7 Qgh6 Ng5 Rc2+ Bc3 Ra1 Rb1 Rb2 Ba5 Qc1+ Bac7 b6 Ba7 Kc4 Bcb8 Kc3 Nf7 Qhd2 Ng5 Kd3+ Bc2+
NQ4Q1/rRb5/1p2PNnR/1B2NRr1/R2nP1bK/2bR3n/q4B1Q/k4b2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 f5 a4 g5 h4 c5 e4 b6 d4 c4 a6 c3 h6 c2 h5 g4 e6+ Kd6 a5 Be7 h7 Nc6 a7 Bf8 h6 Be7 a6 Nf6 Be3 c1B Nc3 f4+ Kh4 f3 Ra4 f2 Bb5 f1B Qd2 g3 Nf3 g2 Bf2 g1N Ne5 Rg8 h8Q Qc7 h7 Rf8 Qg8 Bb2 h8R Bd8 Rh5 Nh3 Rf5 Qe7 Qh6 Bc7 Qf4 Rf7 Qh2 Rb8 a8N Nh7+ Kg4 Bb7 a7 Ba6 Kh5 Qd7 Kh4 Rb7 Qb8 Rg7 Qg8 Rg5 Qb8 Ke7 Qg8 Nf8 d6+ Kd8 Nd5 Bc3 Nf6 Kc8 d5 Nd4 Bc6 Bae2 Bb5 Qc6 d7+ Kd8 Nh5 Ke7 d8R Qc4 Rb8 Kd6 Nf6 Kc5 d6 Bg4 d7 Qe2 d8R Qa2 Ra3 Kb4 Ra4+ Kb3 Rd6 Bd8 Rd5 Rc7 Rb7 Kb2 Rd7 Ka1 Rd5 Nb3 Rd3 Rf7 Nc7 Nd4 a8Q Re7 Qb8 Rd7 Na8 Bc7 Qf7 Re7 Qg8 Ng6+ Kg3 Rg7 Qg2 Rf7 Rba7 Nhf4 Rh6 Nh3 Qh2 Bd6 Re7 Rf8 Reh7 Rf7 Rg7 Ra7 Rb7 Ne7 Kh4 Bc7 Rh7 Ndc6 Rh5 Nd4 Rh6 Ng6+
2N4b/2r4b/p1R4K/1nP2rQN/b1kBB3/1Nqnr1R1/N3PQRQ/N3r3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 b4 d5 c4 d4 h4 a6 h6 d3 c6 d2 b6 g6 b7 Qd5 Kg5 f4 h5 f3 h7 f2 c5 Ra7 b5 Nf6 h6 Qe4 c7 Kd5 b6 Qc2 e6 Kd4 e7 Qa4 e8N Ng4 Rh2 Nc6 b8N Nf6 b7 Qb4 Nf3+ Kc4 Nd4 Nd8 Rg2 Bd7 c8N Bc6 Na3+ Kd5 Nac2 Nd7 Ra3 Qb2 Na1 Qc3 Bb2 Bg7 Ndb3 Kc4 Qe1 d1B Nf6 Ne5 Nh5 Be4 Nc6 Re8 h8R Nd3 b8Q Rc7 h7 Nb7 Nb4 Nd6 Na2 Nb5 Qa7 Bf6+ Kh6 g5 Qd2 g4 Qg5 g3 Qb8 Qd2 Bd4 Qc3 Rf8 Bf5 h8Q Bh7 Qb7 Ree7 Qf3 Re3 Rg8 Bc2 Rg6 Be5 Rc6 Bd1 Rh2 g2 Qff4 g1R Bg2 f1R Qf2 Re1 Be4 Rgf1 Rg2 Bf6 Qe8 Bc2 Qee5 Bh8 Qh2 Bd1 Qfg1 Rf4 Qf2 Rf5 Qgf4 Qa5 Nbc1 Nb2 Ng7 Rg3 Nh5 Ba4 Qg5 Qd2 Re3 Nd3 Ncb3 Qc3 Rf3 Rg4 Re3 Rgf4 Rh3 Rf3 Rhg3 Re3
3bk3/1b3p1R/4NB2/3Bnrn1/1q1BrBQ1/Q3KP1N/N1Qr1BP1/4Rr1n w - - 0 1 illegal: No possible last move
1Rbn1BB1/kbQr1pN1/2b3R1/2NB1r2/2R1BB2/1nr2PN1/2q2PK1/1Q2r3 w - - 0 1 illegal: No extended proof kernel
R4QbR/1nP1rP1R/2K1QB2/N4N1B/kn1Qnn2/q2Q3p/6Q1/bN3rb1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 a5 Kc3 h5 Kc4 e5 Kd5 d6 c4 Kd7 b4 a4 g4 e4 f4 a3 f6 a2 b6 e3 f7 h4 c6+ Ke7 g6 e2 c7 Kd7 g7 e1B b7 Bf2 g5 Na6 b8Q Be1 c5 Bf2 b5 Be3 c6+ Ke7 b6 Ra7 g6 Nc5 f5 Nb7 Nf3 Bg1 Qd4 Rh5 Be2 Nf6+ Kc4 d5+ Kb5 Kd6 g8R Rg5 g7 Qe7 Bb2 Be6 Rh8 Ne4 g8Q Bg7 f6 Rf5 f8Q Bf7 Qh7 Bg8 Qa8 Rf4 c8Q h3 f7 Rf6 Nh4 Rf1 Bh5 Bf6 Qg4 Bg7 Qhf5 Be5 Qd3 d4 Qfg6+ Kd5 Nf5 Qa3 Rh2 Bg7 Rd2 Be5 Rh7 Bg7 Qg2 Bh8 Qac8 Bf6 Qe3 d3 Qef2 Bh8 Bf6 Bg7 Rc2 d2 Q6g3 d1N c7 Ra8 Rc6 Ne3 Re6 Ra4 Re8 Rc4 Qff4 Rc6 Qfh4 Re6 Qhg4 Re7 Q4h4 Nd8 b7 Bh8 b8N Nb7 Kb6 Kc4 Nc6 Kb3 Na5+ Ka4 Qe6 Nd5+ Kc6 Nf4 Qd3 Bg7 Ra8 Bh8 Nd2 Bg7 Re1 a1N Nb1 Nc2 Re3 Nd2 Rg3 Ne4 Rh8 Bh6 Rg7 Bg5 Qhg4 Bh6 Rgh7 Bg7 Bg5 Bc3 Bf6 Ba1 Qh4 Nbd6 Qhf2 Nb7 Qfd4+ Nb4+
1B3Rr1/b1p1R3/Bn2b1rQ/1nKN1n2/1QbN1P2/1Q1B2q1/1b1P1k2/BR3B2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Rh6 Kf7 Ke2 e5 Ke3 a5 b4 a4 g4 a3 f4 a2 g6+ Kf6 g5+ Ke7 d6+ Kd7 g7 e4 Kd4 e3 f6 Ke6 f7+ Kf5 d7 e2 b6 Kg4 b5 Kg3 b7 e1N g6 Qe7 d8Q Qg5 b6 Nf6 g8B Nfd7 g7 Ng2 Ne2+ Kf2 Qb3 Ne3 Qf6 Qg3 Bb2 Ra6 Nbc3 Ba3 Re1 a1B Rb1 Bd6 Rg6 h5 f8R h4 Bh7 h3 g8B h2 Bc4 h1B Rg7 Bd5 Qh6 Rg8 Re7 Bb4 Bb5 Bc4 Bd3 Bd6 Nd5 Bc5+ Kc3 Nc6 b8Q Na7 b7 Bb6 Kb4 Nf5 Be5 Be3 Bh8 Rag6 Ba6 Bb2 Bg7 Bc1 Ba1 Bb6 Nd4 Bb2 Rd8 Nc5 Rf8 Be6 Qc8 Nd7 b8B Qg2 Qe8 Qg3 Qd8 Nb5 Qc8 Nc3 Qb7 Ba7 Qb5 Nb6 Kc5 Nh4 Qa5 Nb5 Qab4 Nf5
Q4rbq/P1N4r/n2B1R2/rQN5/p2kB1RR/8/QRPbnn1K/2B1n1R1 w - - 0 1 illegal: No proof kernel
brNB2Rq/2n5/3R1n2/1rQ1b1N1/PqBnQ2N/N1K2Q2/1n2p2P/B2Nk3 w - - 0 1 illegal: No possible last move
K4Bn1/2QNqRrn/RNb1kP2/1N2rN2/BnP5/B1b5/1RQ2qp1/4nN2 w - - 0 1 illegal: No possible last move
bk1n1Qrn/b7/4RP1N/1qQ1q2B/2P2N2/1bb1KR1Q/pB3Rr1/3BQ1Q1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 a5 h4 g5 f4 d5 c4 Kd7 b4 Kc7 h6 e5 b6+ Kb7 f6 e4 c6+ Ka6 b7 Ka7 h7 g4 b5 d4 f5 d3 f7 a4 c7 a3 b6+ Ka6 h5 g3 h6 a2 f6 g2 Nc3 Bg7 f8Q Qd4 Nh3 g1Q Nb5 Qd6 Bb2 Qf2+ Be2 Be6 c8B Qd8 Nf4 Qd7 Qg1 Bd5 Re1 Nc6 Nd4 Qg3 Bh5 Nge7 Rh3 Ng6 Qc5 Bf8 Nf5 Rg8 h8Q Nd8 h7 Qb5 b8R+ Bb7 Qg7 Nh8 Qge7 Rg6 Nh6 e3+ Kc1 e2 Kd2 Qh2 Rf3 Rg2 Ke3 d2 Bcg4 d1B Qee5 Bc6 b7 Bb3 Ref1 e1B R1f2 Qg3 Rc8 Be4 b8Q Bc3 Rc7 Bd6 Re7 Bc7 Re6+ Bb6 Qbd6 Ka7 Qf8 Bb7 Qe4 Kb8 Qeb1 Ba7 Qbe1 Ng6 h8Q Bc6 Qh7 Nh8 Bf5 Qg5 Bc2 Be4 Bd1 Qe5 Qg6 Kb7 Qgg8 Rc8 Qg6 Kb8 Qf5 Ba8+ Kd3 Rc7 Qg4 Rg7 Qh3 Qc7 Ke2 Rg8 Ke3 Qe5+
q1r1bRr1/rR3N1P/1n4N1/bkN3BP/1r3nQq/R2N3B/5p1Q/2NKQ3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 e4 c5 d4 g5 h6 f5 d6 f4 h7 g4 b6 Kc6 e6 f3 d5+ Kb7 h5 g3 e5 g2 b5 a4 e7 a3 e8Q a2 e6 c4 e7 c3 d7 c2 d6 Bh6 Nd2 Ra6 Ne2 g1R Ne4 Ra8 Nf2 Rg2 Bg5 c1Q Nd3 Rf2 Bh3 Qa3 Nec1 Qc7 d8Q Qa7 d7 Qc6 Qd2 Rg2 Kd1 Rg3 Qh2 f2 Qg6 Qe6 e8R Ne7 Rf8 Nd5 Qe7 Qf6 Qe1 Rg8 Qge4 Qd4 Qg4 Nf4 Rb1 a1R Rb3 Qe4 Ra3 Qa6 Rg1 Ra7 Rh1 Rb1 d8N+ Ka8 Rg1 Bd7 Nf7 Be8 Rf1 Nd7 b7+ Kb8 Rh1 Kc7 b8N Kb6 Nc6 Rb2 Nce5 Rb4 Ng6 Bg7 Rg1 Bc3 Rg2 Re3 Rg3 Qc4 Rb3 Ka5 b6 Kb5 b7 Nb6 b8N Re6 Ra3 Rc6 Nd7 Rc8 N7c5 Qb7 Re3 Qa8 Re7 Qd4 Rb7 Qd8 Bh6 Qh4 Bg5 Rc4 Rb8 Ba5 Rb7 Rb4
1k1KN1rb/1bR2P2/1N1bB1q1/Nr3N2/2nB2QP/p1B1Rq2/1b1nR2Q/N7 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Kc4 Kc7 d4 a5 f4 g5 b4 e5 h4 a4 h6 a3 b6+ Kb7 Kb5 c4 d6 g4 h7 c3 d5 c2 d7 e4 f6 e3 f7 e2 f5 e1Q f6 g3 d6 g2 Be3 c1B Rh2 Nc6 Ne2 g1B Nd2 Qc7 d8N+ Kb8 d7 Na5 b7 Bd6 f8N Nb3 f7 Qf2 Nde6 Bg3 d8R Na5 Ng7 Bd6 Nb3 Qe7 Kb6 Qe4 b5 Nf6 Ng3 Qff4 N3f5 Qe8 Re2 Be5 Bd4 Bce3 Bh3 Bgf2 Rd7 Be1 Rc7 Qd8 Ne8 Rg8 h8B Ra7 Rc1 Bc3 Na1 Be1 Rc3 B3d2 Rce3 Bd6 Bc3 Ne4 Bhd4 Bg3 Qg1 Bge1 Qg4 Nc4+ Kc6 Nb2 Kb6 Ra5 Kc6 Nc5 Nd7+ Ka7 Qg2 Bg3 Nfg7 Nd3 b8N+ Ka8 Bf6 Bf8 b6 Bc1 Re4 Nb3 Be6 Nd2 b7+ Ka7 Bfe5 Nb2 R4e3 Qdf6 Nb6 Nbc4 Nf5 Bg7 Bed4 Bh8 Qh3 Bb2 Qg4 Ne5+ Kd6 Qg6 Ke7 Rb5 Kd8 Nec4 Nc6+ Ka6 b8Q Qf3 Rd7 Bb7 Na5 Bge5 Qd6 Ka7 Rc7 Bh2 Qdg3 Kb8 Q3h3 Bf4 Qh2 Bd6
3Qn3/Nr1BP3/PKpRRb2/3br1k1/rnR3N1/4r2q/1BN1Q1Q1/1q1R3R w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Ke3 b5 Kd4 g5 Kc5 f5 e4 g4 a4 g3 d4 f4 h4 f3 d6+ Kf7 h6 Kg6 a6 b4 d5 f2 e6 b3 a5 b2 a7 g2 h5+ Kf6 h7 Ne7 h6 Rg8 h8R Bd7 h7 Bc6 e5+ Kf5 a6 Kg6 d7 Qc8 d8N Bg7 d6 Qb7 d7 Bb5 Na3 b1R Nc6 Rb4 d8R Rg4 Bb2 Ra4 Nh3 g1R Nc2 Nc8 e7 Kf5 e8R Rg5 e6 Bc4 Rd6 Bd5 Qe2 Bf6 Rd1 R8g7 Rhg8 Rg3 h8Q Re3 e7 Rg5 Rg6 Qb3 Re6 Nd6 Rc8 Ne8 Bg2 f1Q Nf2 Kf4 Ng4 Rge5 Bh3 Qa2 Rh6 Kg5 Qf8 Qb1 Qg8+ Ng7 Qd8 Ne8 Rd6 Bh8 Rhe6 Bf6 N6d4 Nc6 Nb5 Rb8 a8Q Nb4 Qc6 Rb7 Na7 Qc1 Qg2 Qa1 Qb5 Qb1 Qbe2 Qf3 Rd4 Qff1 Rc4 c6 Rb8 Rc7 Kb6 Bf3 Rd1 Bd5 Rb7 Rc8 Rd7 Rc7 Rdd6 Qf3 Nh2+ Qg3 Bg4 Qf3 Bf5+ Qg3 Ng4 Qh3 Qe1 Rf3 Qee2 Bh8 Rf6 Rfe3 Bd7 Bg7 Rfe6 Bh8 Rdg1 Bf6 Rd1 Rb7+
1N4N1/2PRB1Qb/4r2P/kN3rR1/n1Q2p2/nqq3b1/2R4K/1q1BRqQR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 g5 Kg3 f5 e4 a5 b4 d5 c4 Kd7 h4 Kc7 b6+ Kc6 b7 a4 e6 a3 b5+ Kc7 h6 f4+ Kh2 d4 c6 Kb6 h5 g4 c7 a2 e5 d3 c5+ Ka5 h7 d2 e7 Na6 e8Q Be6 c8R Qd4 b8R Qd3 b6 Qb5 c6 Nc5 h6 Ne4 b7 Ka6 Nc3 Bc4 e6 Bd3 e7 Nd6 Nf3 Nc4 Qf7 Na3 e8R Bb4 Ne4 Ne7 Qc4 Nd5 Rg8 Nb6 Be2 Ka5 Rg5 Rf8 h8Q Rf5 Nd4 Na4 Nf6 Ra6 Qg1 d1Q Qg7 Qf1 Bd1 Be1 Ng8 Qb3 Nb5 Bc2 c7 Re6 Rd8 Bh4 Rb1 a1Q Rd7 Qac3 Rb2 Bb1 Re8 Be4 b8N Bd3 Rg2 g3+ Kh3 Bb1 Be3 Bd3 Bc5 Bc2 Be7 Be4 Be2 Qfb1 Rf2 g2+ Kh2 Qf1 Bd1 Bg3+ Kh3 Rc5 Rc2 Bh7 Bd8 Rf5 Ree7 Rg6 Re1 Re6 Be7 Qfd3 Qf2 g1Q Qh2 Qgf1+ Qg2 Bh4+ Kh2 Qb1 Qg3 Qcb3 Qe3 Qdc3 Qg1 Bg3+
1Q2n1QK/n1p5/R3R2B/r7/NbBQ4/P6N/N1BPqNb1/N1qqkq1r w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 b5 h4 g5 f6 e6 f7 g4 d6 g3 f5 g2 a6 Nf6 h6 Bb7 a7 Qd7 h7 Ne8 f6 Na6 h5 Bf3 h6 Qc8 d7 Be2 d8Q Rb8 a8B Be7 f8N Qd7 f7 Bc5 Qb3+ Ka5 Bb2 b4 Nh3 g1Q Nc3 Bf3 Bc4 Qc6 Qd4 Rc8 Nf2 Qg4 Rhe1 Bd5 Nd7 Qg1 f8N Nb8 Nb6 Qg2 Nba4 Qf1 Nd7 Bg2 Bb7 Qf3 Be4 Qd1 Bc2 Be7 Ndc5 Nc6+ Kf4 e5+ Kf5 e4 Kg6 e3 Re2 Nf6 Kg7 Ra8 Re1 e2 Ba3 Rhf8 h8N Na7 Ng6 Rh8 h7 Bd6 Qb2 b3 Nf4 Be7 Qb1 b2 N4h3 Bd6 Be6 Qc1 Nb3+ Ka6 Bc5 Qd1 Bb6 Bb4 Bc5 Qc1 Bd6 Qd1 Bf4 Qc1 Bh6 Qd1 Qc1 b1Q Qb2 Qbc1 Bd5 Rhd8 h8Q Ne8+ Kh7 Rdb8 Kg8 Rb5 Kh7 Ra5 Qg8 Rb8 Bc4+ Rbb5 Bf7 Rh5 Kh8 Rh4 a3 Rhh5 Na2 Kb5 Rb1 Rh4 Na1 Rh5 Nf4 Rh1 N4h3 Qg1 Rf1 e1Q Be6 Qee2 Re1 Qgf1 Bf7 Qh5 Re6 Qhf3 Qd8 Kc4 Qb8 Q3e2 Qbg7 Bc5 Rbb6 Bb4 Ra6 Bf8 Rf6+ Kd4 Bc4 Bb4 Nd3 Ke4 Rfe6+ Kf3 Qd4 Qe4 Bf4 Ke2 Nf2+ Ke1 Bh6 Qee2
3N1K2/kP1p2B1/rn1n1R2/2qb2QR/4RB2/q2RR1NB/1PQ1q2Q/3qb1r1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 e5 Ke3 g5 Ke4 a5 Kd5 a4 h4 a3 f4 a2 c4 e4 c6 g4 h6 e3 c5 e2 h5 e1Q h7 g3 f6 g2 h6 Ra7 f7+ Ke7 c7 Qf2 c6 Ra4 b6 Rc4 f5 Re4 Nc3 Qc2 Rh3 Rh4 Qh5 Rc4 Bf4 Qa4 Nge2 g1Q Ne4 Qg5 Nd4 Qg7 Rd3 Qa7 Re1 a1Q Ne6 Qg4 Ree3 Ba6 c8R Qa8 b7 Qad1 c7 Nc6 Bh3 Ra4 Ng3 Nd4 Qg5+ Nf6+ Ke5 Qe8 Nd8 Rg8 h8R Bc4 h7 Nb5 Rb8 Ra2 c8Q Bd5 Qc2 Qa3 Re4 Bh6 f8R Qeh5 Rc8 Qge2 Rcc3 Nd6 Rde3 Bb3 Rf7+ Ke8 Rcd3 Nd5 f6 Bc4 Rg7 Nb6 Rg6 Bd5 f7+ Kf8 Rf6 Ke7 f8B+ Ke8 Qf5 Bg5 Bg7 Bh4 Qg5 Ra1 Nf1 Be1 Ng3 Ke7 Ne6 Ra8 Nd8 Rb1 Rhf8 Ra6 h8Q Qhf3 Qhh5 Qff2 Rh8 Qg1 Rf3 Qgc5 Rfe3 Qg2 Qhe2 Qf1 Qh2 Qfe2 Rh5 Ke8 Nc6 Ra1 Ne7 Kd8 Nc6+ Kc7 Nd8 Ndc4+ Kf5+ Nd6+ Kg6 Kb8 Kh7 Ka7 Kh8 Bc6 Kg8 Bd5+ Kf8 Qb1 Bf5 Ba5 Qa4 Qbc2 Be6 Rg1 Bh3 Qcd1 Qc2 Be1
1Q1BbnNR/PRR2rP1/5q2/NBb3Q1/Rn1k1K1R/2q3p1/B2r4/Q2q3q w - - 0 1 illegal: No possible last move
bRB1K1k1/R1b1Bq2/1P6/Q1Bqq1nB/4Rp2/Q4nB1/nb2rP2/2N3NQ w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 d6 Bg4 axb3 Na6 b4 Bc8 b5 Nb8 d4 Kd7 e5 Ke6 d5+ Kf5 d7 a5 Qd4 Ra6 Qd1 Rd6 exd6 Kg6 Kd2 Kg7 Ke3 e5 Ke4 c5 Kf5 h5 g4 c4 b4 f6 Ke6 f5 b6 f4 b5 e4 b7 a4 g6 h4 g5 a3 Be2 e3 Bh5 a2 Nd2 h3 Nb3 e2 Be3 e1N Bc5 h2 Nc1 Na6 b8R c3 Qb3 c2 Qa3 Nh6 b6 Kg8 g7 Kh7 g8B+ Kg7 g6 Qh4 Qa5 Bb7 d8Q Rh7 Kd7 Bc8+ Ke8 Qf6 d7 Bd6 Be6 Bb7 Qe7+ Nf7 d8B Kg8 g7 Nb4 Bc8 Bc7 d6 Ba8 d7 Nf3 Qd6 Rh8 Be7 N7g5 d8B Qf5 Qd1 Rh6 Qf1 Re6 Qd3 Re2 Qda3 Ne6 Bh4 Neg5+ Bde7 Qd5 Bg3 Qf5 Rb1 a1Q Rb2 Na2 Rb4 Qae5 Re4 Qf7+ Kd7 Kh7 g8Q+ Kh6 Qf8+ Kh7 Qh6+ Kg8 Qc6 Qfg7 Ke8 Qh7 Nb3 c1B Qb7 Bb2 Nc1 Qg6+ Kd7 Qge6+ Ke8 Ne1 Rc4 Qh8 Qb3 Nef3 Qaa4 Qhf6 Nh3 Nb4 Nd3 Nh4 Ra1 h1Q Ng1 Re4 Nc1 Qfe5 Qb5 Re1 Ra7 Na2 Qa5 Re2 Qba3 Qhe4 Ra4 Qh7 Qg2 Q6d5 Qh1 Nhf3 Re4 Qhf7+
Rb2b1N1/Q1pnRR1q/q2Nrr1N/2P5/2P4r/2B3B1/b1QR1RK1/q3kB2 w - - 0 1 legal: proof: c4 h5 d4 b5 g4 f5 gxh5 b4 e4 b3 exf5 Ba6 axb3 Bb7 b4 Na6 b5 Nc5 dxc5 Bc8 b4 Kf7 h4 Kf6 f4 g5 Kf2 a5 h6 e5 b6 d5 b7 a4 b8Q a3 b5 e4 b6 g4 h7 a2 h5 d4 b7 e3+ Kg2 d3 h6 d2 Ne2 g3 Qc2 d1B Nd4 e2 Nc3 e1R Qa7 Re4 b8R Qe7 Ndb5 Re6 Rh2 Bg7 Nd6 Bd7 Re8 Qf7 Re7 Rf8 Bd2 Be8 Be1 Qh5 Nf7 Qh4 Nb5 Qh5 Nbd6 Qh4 Qf2 Bb3 Qc2 Qh5 Rd1 a1Q Rd2 Qa6 Kh1 Qg6 Rhf2 Ba2 Kg2 Ba4 Re8 Bb5 Ra8 Be8 Rfe2 Ke7 f6+ Kd7 f5 Qh5 Kg1 g2 Bg3 Qh3 Kf2 g1Q+ Kf3 Qd4 Re5 Qh5+ Kg2 Qa1 Re1 Ne7 Re5 Nc6 Ree2 Nb8 Re3 Rhg8 h8N Qg6 Re5 Qh7 Ng6 Bh8 Ne7 Rg4 Ng8 Rh4 Ng5 Bg7 f7 Bf6 Ree2 Bc3 f6 Ba5 Re1 Bb6 Re4 Qg7 h7 Qh6 h8B Qh7 Qb7 Ba7 Ree2 Nc6 Rf2 Bb8 Qa7 Re1 Rfe2 Ne5 Bg7 Kc6 Bh8 Nd7 Re7 Re6 Nh6 Rg8 f8R Rg6 f7 Rgf6 Nge4 Qb6 Qa3 Qa6 Bg7 Rff4 Bc3 Rff6 Ndf5 Kb7 Ng8 Kc6 Nfh6 Kb7 Qac1 Qa7 Nd6+ Ka6 Bb2 Ka5 Q1b1 Kb4 Bc3+ Ka3 Qb6 Qa6 Qa7 Ne5 Qe4 Kb3 Rf2 Bd7 Rd8 Be8 f8R Nd7 Rff7 Ka3 Bd2 Kb2 Bc3+ Kc1 Ndf5 Nb6 Rdd2 Nd7 Nd6 Qc8 Rc2+ Kd1 Qg6 Qa6 Rcd2+ Ke1 Qd3 Rh5 Qc2 Rh4
1RQ1Q3/2bQ1N2/1b1B3p/1Nr2RPK/q1B2rrP/1r2Bk2/B1b5/2RnB1r1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 e4 Qd6 d4 Bg7 e5 Qd8 d6 Kf8 d5 Nd7 e6 Bh6 exd7 Kg7 Kf2 Kg6 Ke1 Bf8 Ke2 Kf5 Kf3 c5 b4 a5 h4 e5 g6 e4+ Kg3 c4 g7 c3 b6 e3 b7 Ke4 Kg4 f5+ Kh5 a4 b8Q a3 g4 c2 b5 f4 b6 a2 b7 f3 g5 e2 Na3 e1B Be3 c1R Nb5 f2 Bc4 f1R Nf3 h6 Ne5 Ne7 g8B Ra4 Nf7 Rf4 Rf1 Qe8 d8Q Bf5 d7 Bf2 d6 Nd5 Qbc8 Nc3 b8R Bg7 Qe7+ Be5 d8B Rc2 Qd2 Nd1 d7 Kf3 Ba5 Bc7 Rc1 a1R d8B Bd3 Ba2 Rc5 Qee6 Bh7 Be7 Bc2 Qdd7 Rg4 Qg6 Raf4 Bd6 Qe4 Qge6 Qa4 Qee8 Rb1 Be1 Rb3 Bh7 Rf8 Bd3 Rg1 Bc4 Rfg4 Nh8 Rff4 Nf7 R1g2 Rh1 R2g3 Rh2 Bg1 Rd2 Bf2 Rd5 Rg1 Rf5 Rd5 B3d2 Bfb6 Be3 Rc5
2b1r2R/N4B2/1B1b2KB/4q2p/B1b2BQP/1q3bN1/1RPnR2b/k1n2N1Q w - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 b5 a4 f5 axb5 e5 fxe5 f4 g4 Ra6 Be3 Rf6 Bc1 Rf5 gxf5 Qc7 Nd2 Qb6 Nb1 Qd8 Kf2 Kf7 Kf3 d5 Kg4 g5 Kh5 a4 b4 h6 e4 f3 e6+ Kf6 b6 Ke5 b5 a3 f6 f2 e7 g4 e8R+ Be6 f7 g3 c6 d4 c7 a2 c8Q d3 b7 Kd4 e5 g2 b6 d2 Bc4 f1B Kg6 Be7 f8B Nc6 b8N Nf6 b7 Bh3 e6 Ba3 e7 Qd5 Qcg4+ Ne4 Ne2+ Ke5 Bb3 g1B Ng3 Kd4 Ba4 Nb4 Nc6+ Kc4 b8B h5 Bc7 Nd3 Na7 Bd6 Bb6 Qe5 Qdf3 d1B Nd2+ Kc3 Rb1 a1Q Bh6 Qa2 Rb2 Qb3 Qg2 Bfe2 Ndf1 Nd2 Ra8 Bf3 e8B Bde2 Bf7 Re8 Bf4 Ne1 Bh6 Bc4 Rd8 Nd3 Ra8 Ne4 Bcf4 Nc1 Rb8 Nd2 Rc8 Bd4 Rg1 Bf2 Qh1 Be3 Rg2 Bg1 Qh4 Be6 Qg4 Bd7 h4 Bh2 Rd8 Bc8 Re2 Qa3 Rb4 Qb3 Rb5 Kb2 Rb4 Re7 Rh8 Ka1 Rb5 Re8 Rb4 Qa3 Rb2 Qb3
Q5Nk/b1Q4p/B3QR2/K2b1nR1/brNB1Q1P/3RP3/1b5b/q2Nrq1Q w - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Nc6 cxd5 Nd4 Nf3 Nf5 gxf5 Ne7 Ng1 Ng8 h4 Kf7 b4 a5 d4 g5 Kd2 Kg7 Kc3 c5 e6 a4 e3 a3 d6 g4 d5 f3 f6+ Kh6 b6 c4 b5 a2 Kb4 c3 b7 c2 b8N g3 f7 Kg7 b6 f2 e7 g2 e8Q Qg5 b7 Bf5 Na3 Qd8 Nh3 g1Q Bb2+ Nf6 Qe6 c1B Ba6 f1B Nc4 Be7 f8R B1d3 Nf2 Qg2 Nd7 Qf1 b8Q Bc2 Bd4 Ba4 Rg1+ Bg4 Qe1 Bb2 Rd1 a1B Rd3 Rg8 Rg3 Kh8 Nd1 Bf3 Rg5 Qc7 Rf7 Qa7 Ka5 Rc8 Qc7 Rcb8 Qg3 Rb4 Qf4 Bf8 Qc6 Bg7 Qc7 Ne8 Nf6 Bf8 d7 Bc5 d6 Bd5 Ng8+ Ng7 Rf6 Nf5 d8Q Rab8 d7 Bd6 Qg4 Bh2 Qgf4 R8b6 Qa8 Rc6 Nb6 Rc1 d8Q Rb1 Nc4 Rc1 Nc3 Re1 Qcc6 Qg7 Nd1 Qa7 Be5 Bd4 Qdc7 Bc5 Bd4 Bb2 Qce5 Qg7 Qee4 Ba7 Qh1 Qe7 Qcd7 Qd6 Qc7 Qe5 Bb6 Qc3 Bc5 Qc1 Bd4 Qa1
2R1bq2/qQ1qP3/rrnp1QQB/3B1q2/3K1NRq/b2N3Q/3P2NQ/1B3k2 w - - 0 1 legal: proof: g4 e5 b4 h5 gxh5 b5 a4 e4 axb5 e3 b6 Bd6 c4 Bg3 c5 Bf4 c6 Bd6 b5 Bf8 fxe3 Na6 e4 Nc5 e5 Nb7 cxb7 Bd6 Nh3 Ba3 Ng1 Bf8 Kf2 Ke7 Ke3 Ke6 b8N Kf5 h4 Kg4 b7 Kg3 h6 f5 h5 g5 h7 c5 h6 a5 b6 g4 e6 c4 e7 a4 e8B a3 Rh4 a2 Nf3 f4+ Kd4 Kf2 e4 c3 e5 c2 e6 g3 e7 g2 Bb2 c1Q Qc2 g1Q Ne1 f3 Na6 Qg3 b8Q Qg6 b7 Qd1 Bd3 Kg1 Nb4 f2 Ng2 f1Q Rg4 Ra6 Bf7 Nf6 Nc3 Qgf5 Bd5 Qde1 Rc1 a1Q Qh2+ Kf2 b8Q d6 Qc7 Bg7 Qb7 Bd7 Ne2 Be8 Nef4 Qdd7 Qh3 Rf8 h8Q Kg1 h7 Qh4 Qb1 Rb6 Rc4 Qa7 Rc8 Rg8 Qc2 Qf3 B3e4 Kf1 Nbd3 Rf8 Qg8 Bh8 Qf7 Bg7 h8Q Rg8 Be6 Nd5+ Qf6 Nb4 Ba2 Rf8 Bb1 Rg8 Bd5 Nc6+ Kc4 Qff2 Bd4 Rf8 Be3 Rg8 Qhh6 Bh8 Qh2 Rg5 Qb3 Bg7 Qfg6 Bb2 Qc3 Ba3 Qcf6 Qhg3 Q6h3 Qh4 Ne6 Rh5 Bh6 Rg5 Nef4 Qf3 Qe6 Qf8 Qef6 Qff2 Bg8 Ra5 Bd5 Raa6 Kc3 Qf3 Kc4 Qe4+ Kc3 Qef5 Kc4 Na5+ Kd4 Nc6+
nQ2R2B/P3K2q/2p1B2N/k1N1N1b1/5Q2/brN1b2r/b1P1bR2/1QBN1q2 w - - 0 1 illegal: No possible last move
N1QR1n2/B2q1p1B/N1nqnP2/1qBK1b2/R5B1/2BkN2P/1qr3r1/2R4Q w - - 0 1 illegal: No possible last move
RB1QrN2/Q2nq3/1p2n1NK/rPq4N/N3RP2/5b1k/5Q1n/1BN1B1nr w - - 0 1 illegal: No extended proof kernel
K4Br1/rRQn1p2/1q1N4/QN2NP1b/n4B1r/2qR1BQ1/2r3PN/1k1n3N w - - 0 1 illegal: No possible last move
2b2bnR/N1K1qp1Q/2nP1Nq1/BRB2P2/1bQqr2R/2B4q/2k1B2Q/4B3 w - - 0 1 legal: proof: e4 d5 g4 b5 c4 h5 cxd5 b4 gxh5 b3 d6 Kd7 axb3 Rh6 b4 Ke8 b5 Rh8 d4 Kd7 e5 Ke6 d7 a5 d5+ Kf5 Bc4 Ra6 Bf1 Rd6 exd6 Kf6 Ke2 Kf5 Kf3 g5 b4 e5 h4 c5 b6 a4 h6 c4 b7 a3 b5 a2 b6 c3 h7 c2 h5 Bg7 h6 Nc6 b8B Bf6 b7 Qf8 d8Q Qe8 d7 Qe6 Rh4 Na5 Bd2 c1Q Nh3 Qd6 Qc7 Qc2 d8B Qf8 Nf4 Ne7 Na3 Qc4 Be1 Bg7 Qb1+ Qc2 Ba7 Bd7 b8Q Nac6 Nb5 Bc8 Bc5 Ng8 Na7 Qe7 Nh5 Bf8 Be2 e4+ Ke3 g4 f4 g3 Nf6 g2 d6 Qd7 Q8b2 Qc3+ Qd3 Qa3 Rb1 a1Q Qd2 Qe7 Rb5 Qb1 Qc2 Qd1 Qc4 Qab3 Qa5 Qa3 Qd2 Qc3 Ba5 g1Q+ Bf2 Qg6 Be1 Qa3 Qdc2 Ne5 Kd4 Nc6+ Kd5 Qb3 Qdd2 Qh3 Ba3 Qa1 Kc5 Qac3 Kb6+ Qce5 Bc5 Qd4 Q2b3 e3 Qb1+ Qd3 Bh5 Qde4 Qh2 e2 Qbd3 Qe5 Kc7 Qd4 Bec3 e1B Be2 Bf2 Be1 Be3 Qg2 Bd2 Qh2 Bb4 Qb1 Nge7 Qbc2 Rg8 h8B Rg7 h7 Ng8 Qb2 Qe6 Nh5 Ke4 Nf6+ Ke3 Qb1 Qe8 Bg3 Kd2 f5 Qh5 Qbh1 Rg4 Bg7 Qg6 h8R Re4 Bf2 Bc3 Be1+ Kc1 Qf3 Qe6 Qh5 Kc2 Qh7 Qee5 Qe6 Bb4 Qc4+ Kb1 Bh6 Qe8 Bhd2 Qe6 Bc3 Kc2 Rg4 Qe8 Rh4 Qe7+
RR2N2b/4q2n/1R1qNNn1/pNbN1K2/B2rb2Q/P3B3/2QPkb2/q1B5 w - - 0 1 legal: proof: g4 b5 b4 c5 bxc5 d5 e4 f5 exd5 a5 gxf5 g5 h3 g4 h4 Ra6 Bc4 Rg6 Bf1 Rg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 Ke2 Kd7 Ke3 h5 Ke4 e5 f4 h4 c4 g3 f6 b4 f5 g2 f7 b3 g6 h3 c6+ Kd6 c7 Kc5 d6 h2 g7 b2 a3 Bd7 c8N Ba4 d7 Qe7 d8Q Rh6 f6 Rg6 Kf5 e4 Nd6 Kd4 c5 e3 c6 e2 c7 Kd3 c8R Na6 Nc3 b1Q Ra8 Rg4 Nf3 g1B Nd5 Ba7 Nd4 Nb4 N4b5 Rd4 Ne8 Nc6 Ra2 Qd6 Rb2 Bc2 Rb4 Be7 f8N Ne5 f7 Nf6 g8N Bc5 Ne6 Qa1 f8B Nh7 Ngf6 Ng6 Bh6 Bb1 Bg2 e1B Qc2+ Ke2 Be3 Bf2 Rg1 h1Q Bh3 Ngf8 Rg8 Ng6 Rb8 Qe1 Bg4+ Kf1 Bd1 Bf8 Qe7 Bg7 Rb3 Bh8 Rb2 Nhf8 Qh7 Qe2 Qh4 Nh7 Qce4 Nhf8 Rg7 Qc7 Na7 Qa6 Ba4 Qac6 R2b6 Q6d6 Nb5 Ke2 Ra8 Qcd8 Rgb7 Nh7 Rbb8 Q8e7 Ndc7 Ba2 Qb1 Bd5 Qc2 Bg2 Ncd5 Be4+
kN3Bb1/n4BN1/B6n/1r3nN1/RQKR3p/r1p3BP/PQ1r2b1/q2Q1B2 w - - 0 1 legal: proof: f4 d5 b4 f5 c4 a5 cxd5 e5 bxa5 Be7 g3 Bg5 fxe5 f4 Bb2 f3 Bc1 Bf4 gxf4 Qf6 Kf2 Qd6 Ke1 Qd8 e4 Kd7 d4 c5 Kd2 Kc7 Kc3 g5 f5 h5 a6 b5 d6+ Kc6 a7 Kb7 d7 f2 e6 c4 e7 g4 e8B g3 f6 g2 d5 Na6 f7 Nc5 f8B Qc7 d8Q Nh6 e5 Qh7 e6 Qd7 e7 Qg4 d6 Qe6 d7 Rh7 Bf7 Qe4 e8N Na6 Qa5 Nc7 d8Q Be6 Q8d2 Qe1 Nh3 g1N Ng7 Nf3 Na3 Nh4 Nc2 N4f5 Nb4 h4 Na6 Rd8 Rg1 Ka8 Rg4 Rd6 Kb4 c3 Qb2 Rd2 Ng5 Bc4 Kc5 b4 h3 b3 Nb8 Nb5 Qb4 Bd5 Rf4 Bg2 Kc4 Rh8 Bd3 f1B Rb1 Be2 Rd4 Bh5 Bf1 Bg6 Re4 Bh7 Rg4 Bg8 Rd4 Rf2 Bf4 Rd2 Qbc1 b2 Bg3 Kb7 a8B+ Ka7 Ra1 b1R Bb7 Rh7 Bc8 Ka8 Ba6 Na7 Qcc2 Rb3 Rb1 Ra3 Rb3 Rh8 Qb2 Rh7 Qe7 Rh8 Rb4 Rh7 Ra4 Rh8 Qg4 Qa1 Qd1 Rh7 Nh5 Rg7 Qeb4 Rg6 Ng7 Rb6 Bc5 Rb7 Bf8 Rb5
3B4/1bQ5/4NNQb/2R1bp1B/N1Pr2p1/QB1kPR1Q/1K1n1rQr/2q1n3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 b4 Kf5 h4 Ke4 e6 d5 h6 a5 b6 f5 h7 g5 b5 g4 c6 d4+ Kb2 d3 h5 a4 b7 d2 e7 Nf6 e8B Qa5 h6 Qa7 c7 Ke3 b6 Be6 c8Q Bc5 Ra3+ Kd4 Rf3 Bb4 Bh5 Qa5 Qe8 Ra7 Qg6 Ba2 Nc3 Rg8 h8Q Bb3 h7 Na6 b8Q Rgg7 b7 Nc5 Qhf8 Bd5 h8Q Qd8 Qc7 Rh7 b8N Bb7 Nh3 Ra5 Qe1 d1R Qeg3 Rd2 Qg2 a3+ Ka1 a2 Nd7 Ba3 Nf4 Nd3 Na4 Rd5 Ne6+ Ke4 e3 Rd4 Bb2 Ne1 Bc4 Rf2 Bb3 Bd6 c4 Be5 Qa3 Kd3 Rh2 Ne4 Nf6 Bf4 Bc3 Bg5 Ba5 Nd2 Kb2 Bh6 Rh1 Nc2 Rb1 Ne1 Qch2 Qd6 Bd8 Qd7 Qhh3 Qd5 Qhg7 a1B+ Ka2 Bb2 Qc7 Qd7 Bd1+ Bc3 Rb5 Qd6 Bb3 Qd5 Rf4 Qf3 Rd5 Qd1 Rc5 Bg5 Qhh1 Rd6 Rf3 Be5 Qhh2 Rd4 Kb2 Re7 Qf7 Re8 Bg6 Rh8 Qe8 Rh3 Bh5 Bh6 Qg6 Rh4 Qhg3 Rh2 Q3h3 Qc1+
q4Qb1/rQN5/K1RbQnkN/1B1p1n2/P2p1rr1/Bb4R1/2Q1P3/Q1RB4 w - - 0 1 illegal: Other
1NK3N1/bB6/1N1br1b1/P1n2PB1/4prn1/p5qR/Q1B1BBk1/Q2QR1n1 w - - 0 1 illegal: No proof kernel
bN4B1/nR5N/1R2p3/bRp3r1/1B1n1q1k/1b2PR1r/2QRP1K1/1B3NQn w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Qd7 h4 Qh3 hxg5 Qe3 fxe3 Bf5 Rh4 Be6 Rh1 Bc8 Kf2 f5 b4 Kf7 d4 Kg6 g4 c5 b6 a5 d6 h5 b7 e6 d7 f4 d8R h4 b5 h3 b6 a4 d5 a3 d6 h2 d7 f3 Qc2+ Kf7 g6+ Kf6 g7 Kg5 Bg2 a2 Bd2 Na6 b8N Bb7 Nh3+ Kh4 g5 Rh6 g6 Be7 Rf8 Kg4 d8R Nb4 Ng5 Rh3 Nh7 Bd5 b7 Nh6 g8B Nf5 g7 Nc6 Bb4 Kh4 Nd2 Na7 Rhb1 Nd4 Nf1 Bb3 Rd6 h1B Rb6 Bd8 Rb2 Bc7 Rd1 a1Q Rd2 Qa4 Rb5 Ba5 Rf7 Rg3 Bh3 Rg5 Bf5 Bg2 Kg1 f2+ Kh2 Rg4 Bd3 Bgd5 Rf3 Rg3 Rb1 Rh3+ Kg2 Be4 Nd7 Rf8 b8R Ba8 R8b6 Rf5 Nb8 Re5 Bf7 Rh5 g8Q Rd5 Qg7 Rf5 Bg8 Rg5+ Ng3 f1N Bg6 Nh2 Rb7 Ng4 Nf1 Rd5 R7b6 Nf2 Be4 Nh1 Qg3+ Kh5 Qh2 Kh4 Qg1 Rh5 Ba3 Rh6 Rb7 Ndc6 R5b6 Ba2 Qc4 Rh5 R1b5 Bb3 Qd3 Qc4 Bb4 Rd5 Bf5 Qf4 Qc4 Nd4 Bb1 Rh5 Qc2 Rg5+
5QK1/2b3R1/1Q1PN1Bk/4bpq1/1R4pB/QRQBrbr1/3P2n1/QN1rn3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg3 a5 h4 c5 Qa4 g4 Nf3 f5 e4 Kf7 b4 Kg7 d6 c4 Rh3 c3 Kf4 c2 h6+ Kg6 h5+ Kh7 b6 Qh4 e6 Nd7 b5 Nc5 Ke5 Nb7 e7 Nd8 e8B Ra6 b7 Bd7 b8Q Qg5 b6 Bb5 b7 Nf7+ Ke6 Qe3 e5 Qg5 Bb2 c1R Nd4 Ne7 Nc3 Kg8 h7+ Kg7 h6+ Kg6 Qa7 Qh5 b8R Rg8 h8Q Rd1 h7 Nd5 Nb1 Be7 Qc7 Rc6 Rb3 Rc3 Raa3 Kg5 Rb7 Bc4 Qb6 Bd8 Rb5 Rf8 Rab3 Be2 Rc7 Ne3 Qg7+ Kf4 h8Q Ng2 Qa2 a4 R5b4 Rg8 Qa3 Rg3 Rd7 Bf3 Bb5 Be2 Bd3 Bc7 Ke7 Qg6 e6 Kg5 Qe5 Rg7 Kf8 Qh6 Qec5 Ne5 e7 Nf3 Bg6 Nfe1 e8Q Re7+ Kg8 Ree3 Qf8 Bf3 Qhe5 Qh4 Rg7 Kh6 Ne6 Qd8 Bc1 Qh4 Qea1 Qh5 Bb2 Qh4 Bf6 Qh5 Bh4 Qg5 Q3a2 a3 Qae5 Be2 Qcc2 Bf3 Qab2 a2 Qa3 a1B Qca2 Bb2 Qa1 Bd4 Qec5 Bf6 Qcc3 Be5
2K3nb/N1Q1RQn1/bP1BQ3/1pR1b3/Q1Q1r1N1/N2P4/2r1BBp1/1rk2q2 w - - 0 1 illegal: No possible last move
1rqNrQ2/R3B1n1/p3RNP1/B3n2n/R3QB2/Pp3B1B/k1N5/2br1b1K w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 g5 c4 g4 cxd5 g3 hxg3 Nd7 g4 Nb8 g5 Bd7 Ne2 Be6 Ng1 Bc8 d4 Kf7 f4 e5 Kf2 b5 g4 h5 Kg2 b4 d6 b3 c6 a6 f6 Ke6 d7 Kd5 g6 e4 f5 e3 g7 e2 f7 Kc4 g5 h4 c7 Ba3 f8Q Qf6 d8B Qe6 f6 Bb4 f7 Nh6 g8B Rh7 d5 Qe4+ Nf3 Bf5 c8R+ Bc5 d6 Qd4 g6 Be6 d7 Nc6 Nc3 Rh8 Qd3+ Kb4 Bf4 Ka3 Rc7 e1R Ne4 Qc4 Nf6 Rd1 Qe4 Ne5 Ra7 Nf5 Ba5 Rb8 d8N Ng7 Nd4 h3+ Kg1 Bd6 Nc2+ Kb2 Rh2 Ba3 Re2 h2+ Kh1 Qc8 Re1 Bc4 Bh3 Bc5 a3 Bf1 Rc1 Ka2 Re3 Rd3 Rd1 Rd7 Rd4 Be7 Ra4 Rd1 Rd3 Bc5 Rd6 Be3 Re6 Bd2 Qe7 Be3 f8B Bc1 Bf7 Rg8 Be8 Rh8 Bc6 Rg8 Qc5 Rh8 Bd6 Re8 Be7 Bc4+ Qe1 Rd2 Bf3 Rg2 Bf8 Rd2 Qe4 Rd1+ Kg2 h1N Qd6 Ng3 Qe7 Nf1 Kh1 Bd3 Qf7 Be2 Be7 Ng3+ Kg2 Bd3 Qf8 Bf1+ Kh2 N3h5 Kg1 Rb4 Kh1 Rb8
1k4NQ/1nN1K1p1/2BN2r1/4b1Pb/NQ1B4/PN1r2R1/1Rp3RB/1b1q2nr w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 h5 e4 h4 exf5 h3 Qh5+ Kd7 Qh7 Ke8 Nxh3 Qd6 Ng1 Qd8 Ke2 Kd7 Ke3 e5 Ke4 b5 h4 c5 f4 Kc7 d4 b4 g4 b3 d6+ Kb7 Kd5 b2 d7 e4 Ke6 c4 f6 e3 f5 e2 g5 e1R+ Ne2 c3 d5 c2 h5 Nh6 a3 Bc5 a6+ Kc7 d6+ Kc6 a7 Kb7 f7 Qb6 f8B Nf7 f6 Bg1 h6 Qb4 Qe4+ Nc6 h7 Bh2 Be3 Qd4 Nbc3 b1B Nc1 Bg3 Rh3 Qb6 Na4 Qc5 Ra2 Rb8 a8N Qb5 Bg2 Qa5 Nb3 Rc1 Rb2 Nh6 f7 Qa6 Nc7 Rg1 Qb4+ Qb5 Ba7 Rg8 h8Q Bh2 Be7 Rc1 f8N Ng4 Nh7 Ne5 Nf6 Rd8 Ng8 Rh1 Bf6 Bf4 Bg1 Nf3 Rg3 Na5 Ke7 Qb6 Bc3 Be5 Bh2 Ka7 Bh3 Qc5 Bg2 Ng1 Ba8 Qd5 Rg2 Rf8 d8N Rb6 d7 Kb8 Nb7 Rg6 d8R Qd1 Rd3 Rd8 Rdg3 Rd3 Bd4 Bg4 Nd6+ Nb7 Bb6 Nc5 Bc6 Nb7 Bd4 Bh5
2b1r1Bn/NkB1NPK1/q6N/2bP2R1/1p2rQ2/B2R4/1N2pn1b/Qr2RN2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 g5 Ke4 b5 Ke5 c5 f4 Kc7 h4 e6 a4 b4 d4 c4 d6+ Kc6 f6 g4 a6 g3 h6 g2 a7 c3 a5 c2 d7 Rh7 f5 Rg7 h7 Rg4 h8N Kb7 a6+ Kc7 h5 Rf4 f7 Bg7+ f6 Bf8 h6 Rg4 h7 Rh4 Nd2 Qe7 d8B+ Kc6 Ra3 Bh6 f8Q Rg4 Ne2 g1B Nc4 Rg7 Nb2 Bh2+ Ng3 Be3 Ng6 Rf7 h8N Bd2 Bc7 Be3 Bc4 Bh6 Re1 Qe8 Rd3 Re7 Nf7 Be3 Qh6 Qd7 Qf4 Nh6 Nf1 Re8 Bd6 Qb7 Bc7 Nf5 Bb3 Ng3 Nh6 Nh1 Ba2 Nf2 Ne7+ Kb5 d5 Kc5 f7 Nc6+ Kf6 e5 Bb1 e4 Kg7 Rb8 a8N Ne5 a7 Qa6 Nb6 Ng6 a8R Nh8 Bd6+ Kb5 Bc7 Rb7 Rb8 Bc5 Ra8 e3 Rb8 Bd7 Nbc8 e2 Ra8 Rb6 Na7+ Ka5 Rd8 Bc8 Rd6 Bd7 Rg6 Bc8 Be3 c1R Rg5 Bg1 Bc2 Rb1 Bc1 Bh2 Rh3 Qb7 Bh7 Ka6 Rd3 Re6 Bg8 Qb5 Qa4+ Kb7 Qa1 Qa4 Nd1 Qb5 Ba3 Re4 Nb2 Qa6
b2q4/4bpB1/PrNNbQQ1/1N2PN2/2B1p3/1n1R4/1rnQ4/k1N1BKrR w - - 0 1 illegal: No proof kernel
2KB1r2/1RBP4/2ppbBB1/1n2Q3/QN5N/4bQ1q/2n1NRP1/2brkrB1 w - - 0 1 illegal: No proof kernel
1N3bN1/r1pN1Bn1/K2nPQ2/1RP2B2/RR3Bq1/2BpQbBr/2kn1r2/8 w - - 0 1 legal: proof: e4 b5 h4 e5 a4 g5 hxg5 f5 exf5 e4 axb5 e3 dxe3 Ne7 e4 Ng8 e5 Kf7 Qg4 Ke7 Qd1 Ke8 Kd2 Ke7 Kc3 h5 Kc4 a5 b4 a4 f4 h4 g4 h3 f6+ Ke6 b6 d5+ Kb5 h2 c4 d4 b7 d3 f7 a3 f5+ Ke7 g6 a2 g5 Rh5 e6 Kd6 g7 Ke5 g6 Ke4 c5 Bd6 f8B Kd4 f6 Ne7 g8Q Rh7 f7 Be5 g7 Bf6 Bh3 Rh6 Nd2 Kc3 Bf5 Bh4 Qe2 Nd5 Ngf3 Qg5 Bd6 Qg1 f8B Qf1 Qh8 Qh3 g8B+ Kc2 Bg7 Nc6 b8R Rf6 Bg3 Nde7 Bf7 Qg4 Ne5 Nd8 Qe3 Nb7 Nd7 Ra7 Ne4 Bg5 Bd2 Bh6 Rhb1 h1R Qf8 Rh3 Qh8 Rg6 Bgc3 Bf8 Nef6 Rgh6 Ng8 Rf6 Be4 Rf1 Qf6 Nf5 Rb3 Ng7 Bf5 Rf2 Bc1 Ra3 Rbb1 Rb3 Ka6 Rb2 b5 Nd6+ Rb7 Rb3 b6 Rb4 Ne5 Rb5 Rb4 Bd7 B1d2 Bc6 Nd7 Bf3 Rb8 Bh1 b7 Bf3 Ra4 Rb4 Rb1 a1N Rb3 Rb5 Rbb4 Nb3 Qe4 Bh1 Bdf4 Nd2 Qe3 Bg2 Ra8 Bc6 b8N Bf3 Ra7 Nb3 Rb7 Nd2 Rc4 Rb1 Rb5 Rb3 Rba5 Rb5 Rcb4 Rb7 Rab5 Ra7+
1B1R4/1Np1R1pP/1knN3Q/1r2b3/bnBq1R1R/6K1/2rPNBQ1/1R2b1r1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 Kf2 a5 b4 e5 h4 a4 d6 a3 h6 e4 h5 a2 h7 e3+ Kg3 e2 f6 e1R b6 Kc6 b5+ Kb7 d7 Bc5 f7 Bb4 f8R Nh6 f5 Ng8 f6 Ba5 f7 Ne7 h6 Re3+ Qf3+ Re4 Na3 Bb4 Bb2 Ng6 Bd4 Qf6 Nc4 Qf5 Ne2 Nc6 d8N+ Kb8 b7 Nf4 Re1 a1B Nd6 Qf6 Rh4 Nd3 Qg2 Ra5 Bf2 Rc4 Re8 Bb2 f8R Bc5 Rb1 Ka7 b8R Bd7 N8b7 Ndb4 Re7 Kb6 Rbd8 Qd4 Rff4 Re8 h8Q Rc2 Qh7 Ra1 Qg6 Rf8 h7 Rf5 Ng1 Rh5 Bc4 Bc3 Ne2 Be8 Rb3 Rg1 Qh6 Bd7 Nf5 Bd6 Rb1 Be5 Nfd6 Bf6 Rh3 Bh4+ Kf3 Na5 Be3 Be1 Rhh4 Qc5 Bf2 Rd5 Kg3 Be5 Qh5 Qd4 Qg6 Nac6 Qh6 Nb8 Nc5 Ka5 b6 Ba4 b7 N8c6 b8B Kb6 Ncb7 Rb5
4nBB1/1PrN2N1/r3Bpk1/K1p1n1rR/1B3R1Q/6NP/2bnqb1B/4Q2Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 a5 Kd2 g5 Kc3 g4 b4 g3 e4 a4 b6 c6 b5 g2 e6 a3 b7 a2 h6 Qh4 e7 Qf2 Kb4 Qf3 h7 Ra3 b6 Nd7 b8B Rb3+ Ka5 c5 d6 Bh6 e5 Bf8 d5 Qe3 b7 Qd3 Bd2 Qf5 Nf3 g1R Bc4 Rg6 Bb4 Qh3 Nbd2 Qf5 Ne4 Bh6 Qe1 Nb6 Ng3 Kd7 e8N Bf8 e6+ Kd8 d7 Ke7 Ng7 Kf6 d8B+ Be7 d6 Qe4 d7 Rg5 Ne5 Qe2 Rd1 a1N Rd4 Rc3 Bdc7 Rb3 d8Q Nd7 Bd6 Rf3 Rh4 Rff5 Rf4 Nb3+ Ka4 Nd2 Ka5 Rg6 Bd5 Kg5 Ba2 Bf6 e7 Kh6 e8B Bh4 Bf8 Rfg5 Be6 Ngf6 Ne4 Bf2 Ng3 Ng4 Bbd6 Ndf6 Nd7 Ne5 Bb8 Nd5 Qf6 Nc7 Qd8 Rf6 Qe7 Rg8 h8Q+ Kg6 Qh4 Rh8 Qd6 Rh7 Qd5 Qf3 h3 Qe2 Rf1 Na8 Qh1 Nc7 Nb6 Bd7 Rf5 Ba4 Nd7 Bc2 Rf4 Be3 R1f3 Bf2 Rf5 Rg4 Rh5 Rg5 Rf4 Nb1 Nb6 Nd2 Ba4 Ne8 Nd7 Qd3 Bab3 Qe2 Bg4 Rb6 Bge6 f6 Bg8 Rd6 Bbe6 Rc6 N7f5 Rf7 Ng7 Rd6 Nb6 Rc7 Nd7 Rb6 Rf5 Rc8 Ne4 Nf7 Bh2 Ne5 Ng3 Rc7 Rf4 Ra6#
1N6/QpRB3b/4Kq2/Nn1pb1rb/1Bn2N1Q/2n2R2/rkP4P/3BB1RB w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 a4 f5 e4 g6 h6 Qd7 a6 Nf6 h7 Bg7 a5 Qc6 a7 Rf8 h8B Rg8 a6 Bf8 Nd2 Qe8 c6 Nbd7 c7 Be7 Qg4 Qd8 Bg2 Nb8 Qh4 Ng4 Nh3 Bf8 Ba3 Bd7 c8R Nf6 Bb4 Nc6 Raf1 Bg7 Nc4 Na5 Rc7 Be8 Kg5 f4 Rf3 Qe7 Rc1 Bf7 Bh1 Ne8+ Kg4 Rc8 a8N g5 a7 Nd6 Rb1 Nb5 Nab6 Rcd8 a8Q Rb8 Rf2 f3 Nd7 Rbe8 Rff1 f2 Rb3 Bg6 Rf3 Bh7 Rc1 Ref8 Rd1 Rf6 Qa7 Qd6 Nb8 f1B Rfd3 Rf3 Re1 Qe7 Red1 Be2 Nf4+ Kf7 e6+ Kf6 Rc1 Qf7 e7 Qg6 Ne3 Ke5 e8B Qb6 Rb3 Kd4 e5 Bf6 e6 Rg7 Nf1 Nc4 e7 Rg6 Kf5 g4 Bd7 g3 e8B g2 Bg7 g1N Nd2 Bd1 Bh8 Ne2 Ra3 Rb3 Bg7 Rb2 Nb3+ Ke3 Rb1 Ra2 Na5+ Bc3 Bd4+ Kd2 Bf2 Qd4 Rc1 Rg5+ Ke6 Qg7 Bh5 Qh8 Bf8 Be5 Re3 Nec3 Bb4 Bf3 Rg1 Qd8 Be1+ Kc1 Rd3 Kb2 Bg4 Bg2 Be2 Bf3 Bd1 Bh5 Rf3 Qf6#
BB2k2n/P3rNR1/pR1p1r1n/KN4Qq/5N1N/Pb1Rb3/2N2r2/1Bn3Q1 w - - 0 1 legal: proof: e4 h5 d4 c5 dxc5 f5 exf5 d6 b4 h4 b5 a6 b6 h3 c6 Be6 gxh3 Qc7 h4 Bc8 h5 Nd7 Nd2 Qb8 Nb1 Qa7 bxa7 Nb8 Kd2 g5 Kc3 b5 Kb4 e5 h4 e4 c4 g4 f4 e3 h6 g3 a3 g2 f6 e2 f7+ Kd8 f5 e1Q+ Nc3 Qe6 h5 Qg6 f6 Qf5 c5 Rh7 c7+ Kd7 c6+ Ke6 Be3 Qg6 Nge2 g1N Bb6 Qb1+ Ka5 b4 Nd4+ Ke5 Bg2 b3 Rh3 b2 Ncb5 Bd7 c8Q Be6 c7 Be7 f8N Rg7 f7 Kf6 h7 Qe4 h8N b1R h6 Qg6 h7 Qe4 Nhg6 Bd7 h8N Qe3 Nc2 Rb2 Nf4 Be6 Qd8 Qe5 c8B Ne2 Bc7 Nh6 Rd3 Bb3 Qg1 Nc1 Nf8g6 Nd7 Bb8 Qh5 Rb1 Nf8 Nh4 Ng6 f8R+ Rf7 Bd7 Kg7 Bf3 Bg5 Bf5 Re7 Nf7 Nh8 Rg8+ Kf6 Rg7 Ra2 Ne2 Be3 Nf4 Rb2 Bc7 Rc8 Bb8 Ra2 Qg8 Rf8 Ba8 Rb2 Nb4 Rh2 Nc2 Rf2 Be6 Rfe8 Qh7 Rc7 Ne5 Ba2 Nbd4 Bc4 Rb6 Rc5+ Nb5 Re7 Qe4 Rc8 Qd5 Rf8 Qdg2 Rd7 Bf7 Ke7 Bfd5+ Kd8 Qg5+ Rf6 Nf7+ Ke8 Be6 Re7 Bed5 Bb3 Be6 Ba4 Ba2 Bb3 Bb1 Be6 Nfg6 Bd5 Nf4 Bb3
3Q3Q/Pp1r3R/1qbkn1R1/1BbP2KR/1p2r1BR/1n6/3N1Qr1/n2N1RB1 w - - 0 1 illegal: Other
2bb4/N1B1r2n/RRr1RN2/1q1B1KnQ/nk3p2/3q2P1/1P3pR1/3N1QQR w - - 0 1 illegal: Other
2q5/3bNn2/r1BrN2k/R3bP1P/NBB2p2/b1Q1nqR1/1N1N1Q1p/Q2K4 w - - 0 1 illegal: No possible last move
2BQ1N1b/3Qq3/RB2r2K/Q4p1R/b4k2/p2qnN2/Pq2Qn1P/N3rRQ1 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 fxe5 Bf5 cxd5 Nh6 b4 Ng8 bxc5 Bc8 Kf2 Ke7 Ke3 b5 Kf4 a5 Kg5 f5 e4 g6 d4 a4 e6 a3 d6+ Ke8+ e7 Kd7 c6+ Ke6 e5 b4 h6 b3 d5+ Kf7 h7 b2 e6+ Kg7 c7 Ra4 d7 Rc4 d6 Re4 Ba6 Nc6 Nd2 b1Q Nb3 Qb2 Rb1 Qc3 Nf3 Nd4 Rf1 Nc2 Na1 Nh6 Rb6 Re1 Be3 Ng4 Qe2 Rg8 h8R Qd3 Rh5 Nf2 Qd1 Bb7 c8Q Bc6 Qc7 Ba4 Bc8 Qe8 Bc5 Ne3 d8N Rh8 d7 Rh6 Qb1 Qf7 e8Q Qe7+ Kf4 Kf6 Ra6 Bg7 Qa5 Bh8 Bb6 Qf8 e7 g5+ Kg3 g4 Kh4 g3 Ne6 g2 d8Q g1Q Qed7 Qh1 e8Q+ Qe7 Nf8 Qg2 Qc1 Qg8 Qd1 Qgb3 Qe2 Qbb5 Qd4+ Qe5 Qed7 Rg6 Qg4 Qb2 Qg1 Kf7+ Rg5 Re6 Kh5 Kf6 Kh6 Qd6 Nd4 Qd5 Rh5 Ke5+ Qg6 Kf4 Nf3 Re4 Qg7 Qd3 Qg1 Re6+
5b1b/n3Q3/1BNrb1BN/1k1BP1QK/1r2q1qB/3p1pR1/R2P2n1/R1B4N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qa5 c4 Qc7 c5 Qd8 Kf2 d5 Kg3 Kd7 Kg4 a5 c4 g5 h4 a4 e4 d4 c6+ Kc7+ e6 Kb6 e5 f6 c7 a3 c5+ Ka5 c6 d3 b6 a2 h6 f5+ Kh5 f4 h7 g4 b7 g3 e7 g2 e8Q Na6 b8B Ne7 Na3 Bg7 Nc2 Bf6 Nb4 Qd7 Qg4 Ka4 Ba7 Bb7 c8B Rf8 h8B Ng8 c7 Bd8 Nc6 Rf6 Ne2 g1B Qe7 Rb8 Ng3 Bc5 Rg1 Rd6 Nh1 Nh6 Bf6 Kb5 Bb6 Nf5 Bg2 Nb4 Bd5 f3 Rg3 Ne3 Qg5 Ba8 Bb7 Ng2 c8R Qf5 Rc7 Qe4 Bc8 Bb7 Bf5 Bc8 Ra7 Be6 Bg6 Rb7 Rb1 a1Q Ra2 Qb2 Rba1 Qg4+ Kh6 Qbd4 h5 Qf5 Qe3 Qdg4 Bh4 Qge4 Qg1 Qh3 Kg5 Rb8 h6 Rb7 h7 Qhg4+ Kh6 Rb8 h8N Rb7 Qg5 Bf6 Nf7 Bh8 Qe7 Rb8 Ncd8 Nc6 Qe3 Rd7 Q3g5 Na7 Nc6 Rd6 Bc7 Rdd8 Qef6 Bf8+ Qg7 Rd6 Bd8 Qh3 Kh5 Kc5 Nh6 Rb4 Q7e7 Kb5 Bb6 Qhg4+
n6N/3B4/5bBQ/1Nrp1qrK/P3Rq2/1QRbRp2/Nb2P1BB/k1n3B1 w - - 0 1 illegal: No possible last move
3KN2n/QQq2Q2/1Rb3Pk/2pbN1r1/1BBb2P1/4r3/n1R2pQq/B2NQ3 w - - 0 1 illegal: No possible last move
7k/1Q1n4/N2Q1p2/1P2B1qN/Q1b1bQ1r/Nq1rK1bP/2p2n1R/Q2B1R1R w - - 0 1 illegal: No possible last move
5K2/3rb1rb/3nPbQN/R2BQ1p1/2N2q1B/Q2PB1qR/2B4p/N1n2kB1 w - - 0 1 illegal: No proof kernel
2Q2Q1R/rb1r1R2/nbN1P1R1/p6p/1B2KR2/3R2P1/r1q1N1B1/1kBq1nQ1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 d4 h5 b4 a5 g3 c5 b6 c4 d6 Kc6 d5+ Kb5 g6 f4+ Ke4 c3 b7 Kc4 e6 c2 d7 Kb3 g7 f3 e7 f2 e8Q Bc5 d6 Ra7 b5 Qc7 d8B Ba3 b6 Qc5 d7 Na6 b8Q Rb7 Qf8 Qc3 Bg2 f1Q Nd2+ Ka4 Nb3 Nb4 Be7 Qf2 d8R Nh6 g8R Na6 Bb4 Ng4 Rd3 Nh2 Rg6 Qf1 Nd4 Rhh7 Nc6 Ra7 b7 Kb3 e3 Bb2 Ne2 Rd7 Ra4 Qg1 Qa8 Nf1 b8R Bb7 Re8 Ba3 Qc8 Ka2 Rh4 Ka1 Rf4 Kb1 Rf7 Qd2 Qe1 Qd1 Qf2 Qh2 Qg1 Bb2 Qh6 Be5 Rh8 Bd4 Qhf8 Bc5 Kf4 Bd4 e4 Bc5 e5 Bb6 Bb2 c1R e6 Rc3 Ke4 Ra3 Bc1 Ra2 Rdf3 Rc7 R3f4 Rd7 Ra3 Qc2+ Rd3 Qd1 Bh1 Qf2 Bf3 Qc5 Bg2 Qcc2
Q5r1/b1R1R1q1/1B1pnq2/pRNqb1NP/1R2BQ2/N1kP4/Q2R4/r2K1n2 w - - 0 1 illegal: No possible last move
2q1N1q1/1N1K1n2/NQ1p2pr/5BB1/Qb1RnR2/Rr6/4PN1P/1krN1bB1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 b4 a5 c4 a4 h6 g6 c6 a3 c5 a2 c7 Qe8 b6 Ra4 h7 Bd6 c6 Qf8 b7 Nf6 Nc3 Qg7 Nh3 Qf7 Nf2 Rg8 h8B Ne8 Bh3 Ra8 b5 Rg7 b6 Bf8 Qa4 Rh7 Rd1 Nf6 Rd4 Qg8 Ncd1 Ne4 Bf6 Be7 Be3 Bb4 Bg5 Rh6 Bg4 Ra5 Bh3 Rb5 Bg4 Na6 b8N Nac5 b7 Nd6 Na6 Nf7 b8Q Ne4 Qb6 Bb7 c8R Ba8 Rc1 a1R Rc3 Rc1 Ra3 Bb7 c7+ Bc6 Rc4 Kd5 Rf8 Ba8 c8N Bc6 Kf3 f4 Nd6 Ba8 Nb7 d6 e6 Ke5 e7 Kd5 Kg2 f3+ Kf1 Ke5 e8N Kd5 Bf5 Ke5 Nh3 f2 Kg2 Kd5 Kf3 f1Q+ Kg4 Qe1 Bf2 Qc3 Bg1 Ke5 Rd4 Qc8 Na5 Bd5 Nb7 Be6 Nhf2 Bd5 Bd7 Be6+ Kf3 Bh3 Bg4 Bf1 Bf5 Bc3 Ke3 Rb3 Kd3 Nc5+ Kc4 Bb4+ Kb5 Ne4 Rc4 Qd8 Kc6 Qb8 Rc5+ Kd4 Kd7 Qa8 Rd5+ Kc4 Nb2+ Kc3 Rd4 Kc2 Nbd1 Kb1 Be6 Nd8 Rf4 Nf7 Bf5 Qc8+
1k6/5q2/1p1n4/PR2RpQB/2R1B2B/NPbnrR1b/r2R2Q1/2KNN1rq w - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 h5 g4 a4 gxh5 a3 Qa4+ Qd7 Qxa3 Qd6 Qa7 Qd8 Kd1 Kd7 h4 g5 e4 c5 a4 Kc7 d4 f5 h6 g4 d6+ Kd7 e6+ Kc6 h5 b6 h7 g3 b3 g2 e5 c4 e7 c3 e8N Bb7 d5+ Kd7 e6+ Kc8 h6 Nc6 e7 Qc7 Rh3 Ne5 Rf3 Qb8 Na3 Nf7 Nf6 Bc6 e8B Ng5 d7+ Kd8 Ng4 Qg3 Qb7 Qh4 Bd3 Bb5 Nf2 Qf4 Be4 Qb8 Bh5 Ne6 Bg5+ Be7 Bh4 c2+ Kc1 Nc5 Nd1 Bc4 a5 Ra7 Ra2 Bf6 Qa8 Kc7 d8R Ba6 Re8 Qc8 Re5 Qd7 Qc6+ Kb8 d6 Qe8 d7 Ne7 d8R+ Nc8 Rdd5 Qf7 Rb2 Rd8 h8Q Re7 h7 Nd6 Qg8 Bf1 h8R Re6 Qg5 Nd3+ Kd2 c1R Rb5 Rg8 Rc2 Ra1 Rc4 Re7 Kc2 Ra2+ Kb1 Ree8 Rh6 Bh8 Rhe6 Re7 Red5 Bc3 Ree5 Nc1 Rd2 Nd3 Nh3 g1Q Nf4 Qh2 Ng2 Qh1 Ne1 Bh3 Qd5 Nc5 Kc1 Rg6 Qh6 Rg1 Qg5 Nd3+ Kb1 Qf8 Qdg8 Nf2 Qg2 Rg7 Re3 Rg3 Kc1 Rf3 Q8g4 Qf7 Qg5 Nd3+ Kb1 Rf2 Rg3 Re2 Rf3 Nb2 Kc2 Re3 Kc1 Nd3+
bb5R/B4R2/pNR1KP2/1B1n1n1N/1r2QBN1/q1Pn1q2/krQR3p/6R1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 h5 Kd5 a6 b4 d6 f4 e4 g4 h4 c6 e3 g6+ Ke7 g7 e2 f6+ Kf7 c7 e1N b6 h3 c3 h2 b7 Nf3 b5 Rh3 g5 Rh7 b6 Ne5 f5 Qd7 g6+ Ke8 f7+ Ke7 Na3 Rh4 Nf3 Ra7 Nc4 Ng4 Ra2 Ne5 Bf4 Nh6 g8Q Nd3 g7 Qa4 Nfe5 Nd7 b8R Qa3 Qh7 Rb7 Rd2 Rg4 Qc2 Nf6+ Kd4 d5 Rg1 Bd7 c8R Bc6 Be2 Rg2 Ng4 Kd7 g8N Bd6 Ra8 Bb8 Qg6 Rf2 f8R Rg2 Nce5+ Kd6 Rf7 Nb4 Bb5 Nd3 Ke3 Kc5 Nc4 Re2+ Kf3 d4+ Kg3 Ne8 N8f6 Nc7 Nh5 Nd5 f6 Nf5+ Kh3 Re1 Rh8 Rb1 Ra7 Rb2 Rc7 Nd6 Qe4 Rb4 Kh4 Nf5+ Kg5 Rb2 Kg6 Rb4 Kf7 Rb2 Nd6 Rb4 Nc8 Rb2 Ba4 Kc4 Ke6 Rb4 Qc1 Rb2 Bb5+ Kb3 Qc2+ Ka2 Rf7 Rd7 Rc7 Ba8 Rc6 Rc7 Rd6 Rc4 b7 Rb4 Nb6 Ne5 Rf2 d3 Rc6 d2 Rfg2 d1Q Rd2 Bd6 b8B Nd3 Ba7 Bb8 Re1 Qe2 Rg1 Qf3
1K5N/1rNB1P2/2q2R1N/bQnpBnN1/4n1p1/3bq1RN/1QP2Q2/rB5k w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 g5 h4 a5 b4 e4 f4 e3 c6 a4 h6 e2 c7 e1N h5 d6 h7 a3 h6 a2 b6 g4 b7 Na6 Kc6 d5 b8Q Nc5 b5 Ra4 b6 Ra7 b7 Ne4 Qe2 Nf3 Qf2 Bg7 Bc4 Qf8 Na3 Be6 c8B Nh2 Kc7 Ra8 Bd7 Ra6 Nh3 Ng5 Nb5 Nf7 Rg1 Ng5 Rg3 Nhf3 Bb2+ Ne5 Rf1 a1Q Ba2 Ne7 Bb1 Qa3 Bc3 Rg8 h8N Qe8 h7 Ne4 Nf7 Ra7 h8N Bf8 Bd4 Qe3 Nh6 Ra1 Bc3 Rg7 Bd4 Qg6 Qe8 Bg8 b8Q Bh7 Qb7 Rf7 Kb8 Bg7 Nc7 Bf8 Bc5 Nd3 Bd6 Ndc5 Qb5 Rg7 Qc8 Rf7 Qca6 Rg7 Qa3 Qe8+ Bc8 Qc6 Bd7 Ng6 Qab4 Nh4 Qb3 Be7 Q3b4 Bd8 Be5+ Ke7 Qb2 Bg6 Bd4 Kd6 f6 Nf5 f7 Rh7 f8N Re7 Na6 Ba5 Ne6 Bh7 Neg5 Rg7 Be6 Ra7 Bc3 Nd4 f5 Ke5 f6 Bg6 f7 Bf5 Qfe2 Bh7 Nf2 Kf4 Nc7 Nf5 Bd7 Qc1 Rd3 Qe3 Nfh3+ Kg3 Rf4 Bg6 Be5 Bh7 Qe1+ Kg2 Qf2+ Kh1 Rc3 Qe1 Rg3 Qe3 Rff3 Nd4 Qa3 Nf6 Ba2 Bd3 Bb1 Nfe4 Rf6 Nf5 Qab2 Rb7+
1kN2R2/1qNqpn2/RBR2n2/2rB1QR1/2b1P1Q1/p2K1b1b/2r2PBN/R7 w - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 c5 gxf5 g4 d4 Bh6 dxc5 Bg5 hxg5 Kf8 Qd3 Kf7 Qd1 Ke8 Kd2 a5 c4 h5 b4 d5 e4 Kd7 b6 a4 g6 h4 g7 d4 f6 d3 b7 Kc7 c6 h3 b5 a3 f7 g3 f8R g2 b6+ Kd6 c5+ Ke5 c7 h2 c6 Kd6 Nf3 g1Q Bg2 Qe8 Nc3 Qh5 Nd5 Bh3 c8Q Rh7 c7 Nh6 g8B Qe8 Qf5 Nd7 b8R Nf7 b7 Rh5 Rc8 Nf6 b8R Qd7 Rb5 Ra5 Ke3 d2 Kd3 Rh6 Qe2 d1B Be3 Bb3 Bb6 Kc6 Ra8 Kb7 c8N Rh5 Ra6 Kb8 Rc5 Qb1+ Rc2 Qb2 Rc6 Rc5 Rhg1 h1B Nh2 Rc2 Qeg4 Rg5 Ke3 Bc4 Nc7 Nh8 Bd5 Nf7 Ba5 Qb7 Bb6 Ba2 Kd3 Bb3 Bf1 Bf3 Bg2 Bc4+ Kd4 Qe6 Qe5 Nh6 Qh5 Qg8 Be6 Nh7 Bf1 Ba2 Kd3 Nf7 Rg3 Rf5 Bg2 Nf6 Qd5 Qh7 Rg5 Bb3 Qg4 Bc4+ Kd4 Qg6 Qd7 Rc5 Bd5 Qf5 Ke3 Ba2 Kd3 Bb3 Qe6 Ba2 Qe5 Qd7 Qef5 Bc4+
4qn2/r1Q1pbn1/B1r2P1B/1NR1PQ1R/3b1b1Q/1BN2pK1/B1B2N2/3q2k1 w - - 0 1 illegal: No proof kernel
3R1q2/b2P3Q/1NRB4/k2pn2b/3p2B1/3r2Rq/P1n1RKNN/qQr2B1R w - - 0 1 illegal: Other
2b1B2k/2KPB2p/R2N4/1Pn4n/N6R/1N1QbQNR/q1r1N1pr/bBq5 w - - 0 1 illegal: No proof kernel
3KQ2n/2P1Nrpr/k7/1RQ3N1/2qB2q1/NBRQ3p/1b2RPbb/3nN1N1 w - - 0 1 illegal: No proof kernel
N1NR4/Np5R/1KrBBpb1/2PQ1nN1/1R1r4/1Q3q2/1rb2P2/knN3qQ w - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 c5 b4 d5 bxa5 e6 e3 Bd6 dxc5 d4 Bh3 d3 Bg2 Be5 Bf1 Bd4 exd4 Qc7 Bh3 Qd7 Bf1 Qd8 Kd2 Ke7 Ke3 Kf6 c4 g5 h4 d2 a4 g4 a6 e5 d5 g3 c6 g2 c7 e4 Kd4 e3 Kc5 Ke5 a5 e2 d6 e1R a7 f6 a6 Bh3 c8N Qd7 h6 Be6 h7 Bh3 h5 Qg7 d7 Qh6 d8Q Bf5 Ne2 g1Q Qb3 d1B Ba3 Qgg7 Bh3 Qgg6 Nbc3 Bdc2 Nc1 Ne7 Nb5 Re2 Rb1 Nbc6 Kb6 Qf4 h6 Qg1 Bd6+ Ke4 c5 Nd4 Qdg8 Bg6 Be6 Qf3 Rb2 Rb8 a8N Nef5 Nba7 Nb5 Qf7 Rg8 h8N Kd4 h7 Rd8 Qg8 Na3 Nf7 Nb1 h8Q Rd7 Ng5 Rc7 Rh7 Rd2 Qd5+ Kc3 Rb4 Re2 Re4 Kb2 Rb4+ Ka1 Qb3 Be8 Qf7 Rd2 Qh5 Bf7 Qh1 Bg6 Qd8 Bd1 Qd7 Rb2 Qc6 Bc2 Qe4 Na3 Qed5 Nb1 Ne7 Rh8 Rh3 Qf4 Nac6 Qd2 a7 Rcc8 Nc7 Qe3 a8R+ Na3 Rh5 Qf3 Na7 Nb1 Rb8 Rh6 Na8 Rc7 Rd8 Rh7 Rh2 Rh4 Nec8 Rd4 Rh7 Rc6+
r1N2Qr1/1p1N2RB/1B1P1nKB/2QB4/1R1qbrb1/2Np4/Q1qP3k/1n5B w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 a5 b4 d4 bxa5 d3 c3 Bg7 Rh6 Na6 Rh1 Bd4 cxd4 Nb8 f4 Kf7 Kf2 c5 Kf3 e5 Ke4 h5 a4 h4 g4 c4 g6+ Kf6 g7 h3 g5+ Kf7 g6+ Kf6 d5 h2 a6 c3 a7 c2 d6 Qd7 a5 Qc7 a6 Rh3 Qh5 Rf3 Ba3 c1R Bc5 Rc2 Nc3 Rf2 Ra4 Qe7 Bg2 Qf8 Bb6 Nh6 g8B Qg7 Rb4 Qf8 g7 Qf7 Nf3 Nd7 Bh7 Qg8 Rg1 Ng4 Bh1 Qb3 g8B Ne3 Bd5 Nc4 Rg4 Na3 Rg7 Rb8 a8N Ra2 a7 Nb1 Nd4 Ra1 Ne6 Qc2 Nf8 Rf1 Qf3 Ra5 Qe3 Ra4 Qc5 Rg1 Nc7 Ra8 N7b5 Rg2 Nd4 Rg6 Nc6 Rg1 Ne7 Rg4 Ke3 e4 Kd4 e3 Ke4 Rb8 a8Q e2 Qa6 Ra8 Qac4 Rg1 Qa2 e1Q+ Kf3 Rf1+ Kg4 Qf2 Kh5 Rg1 Kh6 Ne5 Kh5 Be6 Nc8 Qd4 Rg8 Ng4 Nd7+ Kf7 f6 Rg3 Bhf3 h1B f5 Rg1 Be2 Be4 Bf3 Rf1 Bh1 Rf4 Ne7 Rd8 Nc8 Ra8 Rg5 Rg8 Rg7+ Ke8 Ba7 Kd8 f7 Nf6+ Kh6 Nh5 f6 Bg4 f8B Ke8 f7+ Kd8 Nb8 Nf6 Na6 Kd7 Bb6 Bg2 Kg6 B2f3 Bb3 Bd5 Bc4 Ke6 Nb8 Ke5 Bb3 Rf3 Bc4 Kf4 Nd7 Kg3 Bb3 Bc6 Bd5 Kh2 Be7 Qe5 f8Q Qd4 Bed8 Rf4 Be7 Ne8 Bg5 Nf6 Bh6 Rf5 Be6 Be4 Bd5 Rf4+
N1QBQr1b/1pKNR3/2Qp2n1/1b5k/1B1QQPR1/P1Nnq1n1/1r1qB3/8 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 g5 Kb5 g4 c4 e4 h4 e3 a6 g3 h6 g2 f6 Kg6 h7 e2 f7 e1Q h5+ Kg7 h6+ Kg6 c6 Qg5+ Kb6 Qed2 a3 Qb5+ Kc7 Be7 f8B Qdb4 a7 Qg5 c5 Qf6 Qd5 Qbb2 Be2 Qbc3 Qe4+ Qf5 Nf3 g1N Bg5 Nh3 Re1 Qb3 Nc3 Kh5 Ne5+ Qg4 f4 Bf6 Bd6 Bg7 Bd8 Nf6 Rab1 Rg8 h8Q Nf2 h7 Nd3 Rg1 Qf3 Rbe1 Qb2 Rg4 Qe3 B6e7 Re8 Qg8 Qbd2 h8Q+ Nh7 Qe6 Bf6 Qg7 Ng5 Q6c4 Rg8 Qf8 Bh8 Qcd4 Nf7 Qe8 Na6+ Kb6 Rg5 c7 Rf5 c6 Nac5 Bf8 Rb8 a8N d6 Bg7 Bd7 c8Q Rg5 c7 Bb5 Qcd7 Rg6 Qdc6 Rc8 Nd7 Nfe5 Qg8 Re6 Qe8+ Ng6 Be5 Rb8 c8Q Re7 Kc7 Rg7 Qed5 Ne4 Q5c4 Ng3 Qde4 Qf2 Bd4 Qf3 Bc5 Qfe3 Bb4 Rg8 Nab6 Ra8 Qcd4 Ra6 Na8 Rf8 Rf1 Rb6 Rf3 Qg1 Re3 Qf2 Qf3 Qg1 Re7 Qge3 Qfe4 Ba6 Ba5 Rb2 Bb4 Bb5
1B5b/2N3kN/B2b3q/1NR1NpP1/KPnpQ3/B2Nb1rb/4r3/2RQRn2 w - - 0 1 illegal: No proof kernel
1B4n1/1q2kn2/2P1B1bp/1N1Q1P2/nb3p2/B1n1KB2/RN1Q2RB/N1r2rQ1 w - - 0 1 illegal: No possible last move
2n1rN1N/rQ1K1N2/nP6/p1k3Bb/PRNNp3/q4B2/b2Qb2B/3R2bQ w - - 0 1 legal: proof: e4 b5 h4 c5 c4 g5 cxb5 f5 exf5 c4 hxg5 c3 dxc3 Na6 c4 Nb8 c5 Qc7 Nc3 Qb6 Nb1 Qd8 Ke2 e5 Ke3 Ke7 Ke4 a5 Kd5 h5 f4 e4 a4 h4 g4 d6 b4 h3 b6 h2 b5 Nh6 f6+ Kd7 g6 Qe8 c6+ Kd8 f5 Nd7 f7 Ke7 f6+ Kd8 g7 Ba6 g8N Nc5 g5 Qe7 c7+ Kd7 b7 Ne6 b8B Nd4 g6 Ng4 b6 Bb5 g7 Rh5+ Bg5 Nc6 Nh6 Ra7 g8Q Nge5 Bg2 Nd3 Qh8 Nc5 Qd2 Na6 Bf3 Be2 Na3 Bg7 Rb1 Qf8 Nc4 Ne7+ Kd4 Kc6 Rb4 d5 Ke5 d4 Ke6 Kc5 Kd7 d3 Qh7 Nc8 Qh8 Bd1 Ne2 Bb3 Rd1 h1B Nd4 Ba2 Qh7 Bg2 Qh8 Bf1 Qh7 Qg8 f8N Be2 Ng6 Qf8 f7 Be5 Nh8 Bh2 Rb3 Bg1 Rb4 Qg8 f8N Rh1 Bh4 Qg3 N6f7 Rh3 Bd8 Rh5 Bf6 Re5 Qh1 Re8 Bd8 Qf4 Bg5 Qe3 Qe1 Qc1 Qd2 Qa3 Ra1 Qb3 Bh5 Bf3 Qe2 d2 Rd1 Qa3 Qd3 Be2 Bf3 Ra8 Qe3 Na7 c8Q+ Nc7 Qb7 Nc8 Bg2 Na6 Bh2 Bh5 Bf3 Ra7 Re1 d1B Qd2 Be2 Ra1 Qe3 Rd1 Qa3
1BnNR1NQ/4q3/p2pn3/2rnN1P1/N3QQ2/kn1NbK2/2B1P2R/1B3r1b w - - 0 1 illegal: No possible last move
2R1r1n1/2N1P2q/3PK1kb/1B2rNp1/2Q1R2B/B1n5/p1r1RBrB/3b1Q1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 f5 Kg3 Kf7 Kf4 c5 h4 a5 e4 c4 d4 a4 b4 g6 d6 a3 b6 c3 b5 c2 h6 a2 d5 Na6 h7 Nh6 b7 Nb4 b8R Bg7 h5 Ra7 b6 Ng4 e6+ Kf6 e7 Ra3 e8Q Rb3 d7 Rc3 b7 Ne5 h6 Ng4 Ba3 c1R Rh2 Rh3 Ne2 Bf8 Nbc3 Qa5 d8B+ Be7 Qea4 Qb6 e5+ Kf7 e6+ Kf6 Nd4 Nc2 Bb5 Nb4 Qf1 Rc2 Re1 Re8 Re4 Qa7 Rhe2 Rg3 d6 Bd7 Rc8 Rg2 b8B Qb7 Ba7 Nd5+ Kf3 f4 h8B+ Kg5 h7 Nh6 Be5 Ng8 Nf5 Kh5 Qd4 Bf8 h8Q+ Bh6 Bh4 g5 Qc4 Kg6 B7c5 Bc6 Bcf2 Qh7 e7 Bb7 Nd1 Ba6 Nde3 Nc3 Nd5 Bb7 Nc7 Bd5 Qc6 Bb3 Qc4 Ba4 Bfg3 Bb3 Kg4 f3 Bd4 Ba4 Bg1 f2 Bh2 Nb1 Qa1 Nc3 Qh1 f1R Qc1 Rd1 Qf4 Rgg1 Qf2 Rge1 Qff1 Rdd2 Bf2 Rb2 Kf3 Bd1 Ke3 Rdc2 Kd4 Rd2+ Ke5 Rbc2 R2e3 Ree2 Ke6 Rd5 Be1 Rg2 Bef2 Rc5 Re2 Re5+
Rr2q2R/R1bPr1b1/4p1b1/2K4n/B1N1B3/1NP1N1Bk/Q1bQp3/NN2n3 w - - 0 1 illegal: Other
2k2N1q/1p1p1bQ1/2rQrB1N/5B2/Q4NK1/P1bnNb2/1BR1PRn1/1b3N2 w - - 0 1 illegal: Other
N3N3/1k1r1N1n/1bRb4/1KB1N1B1/1Npr2qP/QBQ2pqb/1R3Pr1/3Q4 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 Kd7 d4 Rh6 d6 Ke6 d7 Kd6 d5 Rh8 Bd2 Ke5 Bc1 Kf6 d6 Na6 Bh3 Nb4 Bf1 Nd5 exd5 Rh6 Bc4 Rh7 Bf1 Rh8 Ke2 Ke5 Kd3 c5 Kc4 a5 b4 g5 h4 f5 h6 a4 h7 f4 b6 a3 b5 g4 b7 a2 b8N e6 b6 g3 b7 g2 Na3 Ra4+ Kb5 Qf6 d8Q Re4 d7 Kd6 Qa5 e5 d8B Be6 Nf3 g1R Nc2 Nh6 Bc4 Rg3 Qa3 Rg2 Rb1 a1B Nd7 Qf5 b8N Bd4 Na6 Ng8 Ncb4 Nf6 Bb3 Qg4 Nc7 c4 Re1 Qg3 Rb2 Bh3 Be3 Bb6 Na8 Rd4 Rg1 e4 Nfe5 Rg8 h8Q Nh7 Bg5 f3 Nf6 Rg7 Re1 Rd7 Rg1 Ke7 d6+ Kd8 Ne8+ Kc8 Re1 Kb7 Ree2 Rd3 Bc5 e3 Re1 e2 Rg1 Re7 d7 e1Q Qf6 Qe4 d8N+ Kb8 Ndf7 Kb7 Re1 Qeg4 Ree2 Rdd7 Red2 Rd8 Rd6 Red7 Rc6 Rd4 Qg6 Be7 Qgd3 Bd6 Qc3 Rd7
1B2nNq1/1Bb2NQ1/1n2QprB/1p2qR1K/Q3BPP1/1qR4R/2bBk3/3n4 w - - 0 1 legal: proof: e4 d5 h4 a5 b4 g5 bxa5 d4 hxg5 d3 cxd3 Be6 d4 Bf5 d5 Bc8 d4 b5 d6 Bg7 e5 Kf8 d5 Ra6 d7 Rd6 exd6 Bh6 Nd2 Kg7 Nb1 Kg6 Nd2 Bg7 Nb1 Bf8 Ke2 Kf5 Kf3 h5 a4 e5 g6 c5 g7 c4 a6 h4 a7 h3 a8R c3 a5 f6 a6 c2 a7 h2 Ne2 Na6 Nbc3 Nb8 Ne4 Qe7 d8Q Rh5 d7 Qd6 Qb6 Ne7 d8B Nec6 g8Q Qb4 d6 Qe1 d7 Nb4 Qg7 N4a6 Ng5 Rh6 Bc7 Qb4 d8B Nd7 Nf7 Bd6 Nf4 Qb3+ Bd3+ e4+ Kg3 Bb7 Rc8 Rg6+ Kh4 Be5 Be3 c1Q a8B Qcc4 Bb8 Nc7 Kh5 Ne8 Ne6 Bc7 Bh6 Bd5 Qe3 Nb6 Nf8 Bc6 Rf1 h1N Ra3 Bd7 f3 Nf2 Bb7 Be6 Qa1 Nd1 Be7 Qd5 Bb4 Qd8 g3 Bc4 Bb1 Bd3 Bd2 Bc2 Qad4 Qdd5 Qa4 Qe6 Qe2 e3 Qec4 e2 Qd5+ Be5 Rc3 e1Q Nh8 Bd3 Rc5 Qg8 Nf7 Qa2 Rh1 Qe3 Rac3 Qb3 f4 Qe4 Qdc4 Qd5 Rh3 Bc7 Rc6 Qd4 g4+ Ke4 Rc5+ Nd5 Rh4 Kf3 Rh3+ Ke2 Bc2 Nb6 Rf5 Qe5 Qe6 Bc4 Bce4 Bd3 Rg5 Bb1 Rf5 Bc2
1qn1Q3/2p2qn1/1k2pQB1/1r5B/B2RPKN1/bN2BQPb/n1B3q1/2R1N3 w - - 0 1 legal: proof: c4 b5 b4 g5 f4 d5 fxg5 a5 bxa5 Ra7 cxd5 Ra6 g4 Rh6 Bb2 Rh3 Bc1 Rg3 hxg3 Qd6 Nc3 Qd7 Nb1 Qd8 Kf2 Kd7 Kf3 f5 a4 h5 d4 f4 g6 e6 a6 h4 a7 h3 a8B h2 g7 b4 a5 b3 g5 b2 g6 Be7 a6 Rh4 a7 Qf8 d6 Ba6 d5 Nf6 g8N Ng4 g7 Rh5 Bc6+ Kd8 a8B Rh4 d7 Ne3 Ra4 Ng2 Rd4 Bd6 Nd2 b1N Nf6 Qh8 g8B Ne3 Nb3 Nf5 Bf7 Rh5 Ng4 Ba3 Bg6 Nc3 Be3 Ng7 Ba4 Na2 Ke4 f3 Kf4 f2 Nf3 Qg8 Ne1 Nc6 Bg2 f1Q+ Bf3 Na7 Bb7 Ke7 d6+ Kf8 Bc2 Nc8 Bbe4 Rb5 d8Q+ Kf7 Qh4 Ke8 Bg6+ Kd7 Qf6 Bb7 Rg1 h1Q Qd3 Bd5 Qe4 Kc6 d7 Qh5 d8Q Qg2 Qe8+ Kb6 Nf2 Qhh8 Qc6+ Ka7 Ned3 Qgh2 Bfh5 Ne7 Ng4 Qe8 Bd2 Qf7 Rc1 Qb8 Qe8 Nc8 Ne1 Kb6 e3 Bc4 Qf3 Bf1 e4 Bh3 Be3 Qg2
1B2r2q/2bn1Bk1/b2qn3/Qp6/p1R3P1/1b2KBQQ/nPB2N1R/N3B2R w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 fxe5 b5 h4 a6 hxg5 Ra7 a4 Rb7 a5 Rb6 axb6 a5 Kf2 h5 e4 c5 d4 f5 g6 a4 b7 h4 e6 h3 e5 h2 e7 c4 d6 f4 d5 c3 g7 Kf7 d7 f3 e8B+ Ke7 d6+ Ke6 Bd3 c2 Bh5 Qh4+ Ke3 f2 d8R f1B d7 Bb4 Na3 Qg4 Bd2 c1Q Nc2 Be7 Nh3 Nh6 g8Q+ Nf7 Qf3 Qg6 Nf2 Bd6 Qh3+ Ke7 g3 Bc7 e6 Kf6 e7 Ng5 e8B Ne6 Bf7 Qd1 Bf3 Qh5 Bdg6 Bc4 Rc1 Bb3 Be1 Qd6 Na1 Qh7 g4 Qh4 Qe8 Kg7 Rc4 Rf8 Bb1 Qh8 Bc2 Rg8 Qe7 Rf8 Qeh4 Re8 Rf1 h1N Q4g3 Re7 Rf8 Re8 d8Q Nd7 b8B Bb7 Rg1 Ba6 Rg2 Qa3 Rh2 Qd6 Qg1 Ng3 Qgg2 Ne2 Qgg3 Qh5 Rh8 Nc3 Rh6 Ba5 Qc7 Na2 Qa7 Bc7 Qa8 Bb7 Qa5 Ba6 Rh1 Kf8 Qhg2 Qh4 Qf1 Qf6 R6h2 Qh8 Qfh3 Kg7
rnBk4/2p1R3/qR1r1R2/1N1Q3R/pqK1Q2N/B1n2RPB/2P1n2Q/r5b1 w - - 0 1 legal: proof: f4 e5 d4 b5 dxe5 g5 fxg5 b4 h3 b3 axb3 Bb7 b4 Bf3 b5 Bg4 hxg4 Bh6 Rh5 Bg7 Rh1 Bf8 Kd2 d5 Kd3 h5 e4 f5 b4 a5 e6 d4 e5 f4 b6 h4 b5 f3 g6 f2 e7 h3 b7 a4 b6 h2 g7 Kd7 e8R Qe7 e6+ Kd6 g3 Qh4 e7 Kd7 g5 Qh7+ g6 Qh5 Ba3 Qf5+ Kc4 d3 Qh5 d2 Bh3 f1R Nc3 d1Q Nf3 Rh7 Nb5 Ra6 Nh4 Nf6 g8Q Qb1 g7 Nd5 Qh8 Qb2 g8B Rg1 Rf1 Rh6 Rf3 Nf4 Qh7 Qg4 Qd5+ Rd6 Qhe4 Bh6 Rf8 Qe6 e8R Ne2 R8f6 Ra8 Re7+ Kd8 Bh7 Be3 B7f5 Ra1 Bfg4 Na6 b8Q+ Qc8 b7 Bg1 Qa7 Nb8 Qad4 Qe6 Qd2 Qb4+ Kd3 Nc6 b8R+ Qc8 Rb7 Nb8 Rb6 Qa6 Bc8 Be3 Rg1 h1N Rg2 Bg1 Rh2 Qba5 Kc4 Nf2 Rh1 Nd1 Rh2 Ndc3 Rh1 Nd4 Qh2 Nde2 R3f5 Bd4 Rhf1 Be3 Rh5 Bg1 R1f3 Qb4+
1NB4B/1p1QQn2/3R3B/1Bk3K1/4B1p1/2r1R2q/1Pb1PQqq/RNr1r2n w - - 0 1 illegal: No proof kernel
nB3N1K/4P3/2b2bBr/4QBp1/n1Qp2rn/RB2b1P1/6QR/N1RBk1r1 w - - 0 1 illegal: No possible last move
n1NRB1nN/5KBk/R1qP1n2/R3RbQp/3b3P/1p1B1Q2/n5Qn/1R2r3 w - - 0 1 legal: proof: e4 d5 g4 a5 b4 f5 bxa5 d4 exf5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 b5 g5 Ra6 f6 Nd7 f5 Nb8 f7+ Kd7 Qc2 Bb7 Qd1 Rf6 gxf6 Bc8 Kf2 h5 Ke3 g5 Ke4 e5 h4 c5 d4 g4 a4 g3 a6 g2 a5 b4 a7 c4 a8B b3 d6 c3 Kd5 c2 a6 e4 a7 e3 Ne2 g1N Nd2 Be7 f8Q Nh6 f7 Ng8 f6 Nc6 Nc4 Bb7 Bb2 c1N Qg7 Nf3 f8Q Ne1 f7 Nh6 Qc2 Qb6 Nf4 e2 Ra5 Nf3 Ng6 e1N Qg2 Bc8 Bd3 Nh2 Qf6 Qa6 Qfg5 Nd8 Rf1 Rg8 Nh8 Nef3 Rh1 Na2 Rb1 Nd2 Ke5 Ne6 d5 Nc7 Bb7 Qb5 a8R Qb6 R8a6 Ne4 Bd4 Ne8 Bc6+ Kd8 d7 Nf6 Ke6 Bc5 Ba1 Bd4 Nd6 Rg7 Bc3 Ng8 Bb2 Bb7 Nc8 Qc5 Ba4 Qc6+ Qd6 Rg6 f8R Rh6 Rf7 Ba8 Re7 Nc7+ Kf7 Bb7 Be4 Na8 Qdg3 Rg6 Re5 Rh6 Nb6 Bc8 Bd3 Rg6 Q3f3 Rg7+ Kf8 Re7 Bab5 Re6 Kg7 Ke7 d8R Qc5 Bd7 Qc6 Be8 Bd7 Kg6 Kf8 d6 Re7 Rec5 Re1 Re5 Be6 Nc8 Bf7+ Kf5 Bg6+ Ke6 Kg7 Bc3 Kh7 Ba1 Bf5+ Kf7 Ba7 Re2 Nd7 Bg7 Ndf6 Ree5 Bd4
1n2Q2Q/b2K1R1N/1knb4/NB2pBrP/2B1PB1Q/1bR1p3/1q1b1R2/3b3B w - - 0 1 illegal: Other
2r3qQ/r2Bbk2/1BPn1npp/1R1N1rBP/1N4RB/5nn1/2R1Q2B/6KQ w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 Nc6 f4 Ba6 g5 Qc7 f6 Kd8 f5 Nb8 Qd6 Bb7 Qd1 Bd5 g6 Bf7 gxf7 Qc8 Bc4 Kc7 Bf1 Qd8 Kf2 d5 h4 Kd7 b4 e5 c4 a5 h5 a4 b6 g6 c6+ Kd6 c7 h6 c8Q e4 c5+ Ke5 b5 d4 b7 a3 b6 d3 c6 a2 Nc3 d2 Nf3+ Kd6 Kg1 e3 Qe2 d1N Nd5 Na6 b8B+ Nc7 b7 Qe7 Nd4 Ke5 Rh4 Nb2 Bh3 Qa3 Rg4 Ra5 Nc2 Nc4 Ncb4 Be7 f8Q Nd6 f7 Rh7 f6 Rb5 Rb1 a1R Rb2 Nf5 Rc2 Qa7 Qfd8 Ra4 f8B Rh8 f7 Qa8 Ba7 Ng3 b8B Ra1 Bb6 Ra7 Qa6 Ke6 Qa1 Ne8 Qb1 Nh1 Bh2 Nd6 Bg7 Ng3 f8R Qc8 Rf5 Nf6 Rfg5 Kf7 Re5 Rh7 Qh8 Qg8 Bd2 Ra8 Qbf1 Rb8 Qff3 Rc5 Qh1 Rc8 Bc1 Rc4 Bf8 Rf4 Bd2 Rf5 Bg7 Nfe8 Bf6 Rg7 Bh4 Nf6 Qa6 e2 Bdg5 e1N Qe2 Rf2 Nc3 Rf5 Rb5 Rh7 Ncd5 Nf3+ Kf2 Re5 Qc1 Bf8 Rf4 Ke8 Qh1 Ra7 Bd7+ Kf7 Rg4 Be7 Kg2 Rf5 Kf2 Ne5+ Kg1 Nf3+
1N5Q/PRp2Q1p/B1b4r/BQb2rR1/2bN2BP/3r1nBq/kB4R1/3b3K w - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 f4 c4 Nc6 cxd5 Nd4 Qa4+ Kf7 Qd1 Nf5 gxf5 Ke8 Kf2 Kf7 Kg2 b5 d4 g5 a4 g4 e4 g3 f6 b4 d6 Ke6 f7 b3 d7 b2 d5+ Ke7 a6 Qe8 d8B+ Kd7 d6 Kc6 d7 Kc5 a5 Kb4 a7 Ba6 e6 Rc8 a8R Be2 a6 Bh6 f8B+ Qe7 e5 Bb5 a7 Bc4 Ra2 Bg5 Rb8+ Bb5 Nf3 Nf6 Rg1 Nh5 Qe2 Kb3 Rb7 Qd6 e7 Bf6 e8B Qd3 e6 Bg5 e7 Nf6 Ne5 f3+ Kh1 f2 Nc6 Ng4 Na3 b1B Nc2 Be3 Bh5 Bc5 e8Q Qc3 h4 Nh2 Bdg5 Rd8 Bd6 Rf8 Bb2 Rf5 Bd2 Qd3 Qf3 Qe3 Bd3 f1B Ba5 Be2 Bf4 Bd1 Nb8 Qe6 Bg4 Qe3 Bb4 Bc6 Ba6 Qd3 Ra5 Ba2 Rg2 Qc3 Qf1 Qe3 Qb5 Qd3 Bg7 Qc3 Qf8 Kb2 Qf7 Bc4 Nd4+ Kb1 Ba3+ Ka1 Bd2 Ka2 Be5 Qf3 Bh5 Qg4 Bef4 Qh3 Bg4 Rg8 d8Q Rg6 Qdf6 Rh6 Bb2+ Ba3 Qbd5 Re5 Qh8 Re3 Rc5 Rd3 Ba5 Bb4 Rd2 g2+ Kg1 Ba3 Bg3 Bb4 Rcb5 Be7 Qc5 Bd6 Qb4 Be7 Rg5 Bc5 Kf2 g1R Qb5 Re1 Rc2 Re2+ Kg1 Re5 Rg2 Rf5 Kh1 Nf3+
k2nN2Q/3KpB2/1bn2R2/1N2Q1N1/4P1n1/3NNr2/1RP2Bp1/bb1Qq1Bb w - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 b5 a4 a5 axb5 g5 d4 g4 dxc5 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bg7 Qd6 Bh6 Qd1 Bf8 Kd2 h5 Ke3 d5 Kf4 Kd7 Ke5 Kc7 b4 Kb7 e4 a4 f4 h4 b6 a3 g6 a2 c6+ Ka8 f6 h3 b5 h2 g7 g3 c7 d4 b7+ Ka7 f5 g2 f7 d3 f6 d2 Ne2 Na6 b8B+ Kb7 b6 Nc5 Na3 Na4 Rb1 a1B+ Rb2 Bd7 c8N Bf5 Ba7 Nc5 Nd6+ Ka8 Nac4 Nb3 Nf4 Nh6 g8N Bg7 f8Q Qc8 Nb5 Be6 Nd3 Qd8 Ne3 Bc8 Qe8 Ba6 Ke6 Qb8 f7 Rh7 f8N Nf7 Nf6 Nd4+ Kd7 Nd8 Ne6 Rh3 Qh8 Rf3 Ng5 Qg3 Ne8 N4c6 Be2 Qe1 Rf1 h1B Rf2 Rf6 Bh5 Rf3 Bf7 Bd4 Qe5 Rh3 Rf6 Rf3 Qe2 d1N Bd2 Nf2 Qd1 Qe2 Be1 Ng4 Bf2 Bc5 Nd4 Bc4 Nb5 Ba2 Bg1 Qe1 Bf2 Kb7 Bg1 Ka6 b7 Bb1 b8Q Bb6 Nf5 Ba5 Baf2 Bc7 Ne3 Bb6 Qbd6 Kb7 Qh2 Nd4 Qde5 N4c6 Qh8 Ka8
Q1Q1B3/bqNpnN2/2NPQ3/R1Bb3K/bR4r1/P3N3/bq4Bp/4k1rN w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 b5 b4 Nc6 bxa5 b4 c3 Na7 c4 Nb5 cxb5 Bh6 Nh3 Bg7 Ng1 Bf8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 d4 Ke4 g6 c5 e6 f5+ Kh5 c4 g4 b3 g5 b2 g7 c3 b6 c2 e7 f4 e8B h6 b7 f3 b8N f2 a6 Bb7 a7 Rh7 d5 Rh8 g6 Qc7 d6 Qc8 Nc3+ Kf5 e4+ Ke5 Nge2 b1B Be3 c1Q Nd5 Q8c4 Qe1 Qb4 Bc5 Ne7 g8Q Qcb2 Ne3 Bd5 g7 Qb7 Ng3 Kf4 e5 Kf3 e6 Bc2 a3 Ba4 Nc6 Rc8 Bh3 f1B a8Q Bfc4 Rb1 Ba2 Qc1 Kf2 Bg2 Rc7 Rh3 Rc8 Nh1+ Ke2 Qf7 Rg8 Rh4 Rb8 Rb4 Rc8 Qc4+ Kd2 Rf1 Rd8 Rf4 Ke1 Rb5 Rb8 Ra5 Rc8 Qca6 Rc7 Rb4 Rc8 Kg4 h5+ Kg5 h4 Kh5 h3 Qc4 Ng6 e7 h2 Qe6 Rd8 Bf7 Rb8 e8N Ne7 Nc7 Rd8 Be8 Rc8 Qa7 Ra8 Qb8 Ra6 Qa8 Rb6 Rb3 Rb4 Qca6 Rg4 Rb4 Ng6 Qc4 Be7 Qca6 Bg5 Qc8 Ne7 Qaa8 Rf8 g8N Rf1 Nh6 Rg1 Nf7 Bf6 Ra7 Bc3 Rd4 Ba5 Rb4 Bb6 Ra5 Ba7
r2Q2N1/B3pK1Q/p2R4/4P2b/kn2Pq2/2R2QQ1/Bb1NQn2/2RNbbq1 w - - 0 1 illegal: No possible last move
1R3NQB/1nBp3p/1NP1qKn1/B1nPB2r/BN4RQ/3q2Q1/3n2b1/bk6 w - - 0 1 legal: proof: e4 c5 a4 g5 h4 f5 hxg5 b5 exf5 a5 b4 Ra7 bxc5 b4 Nh3 Rb7 Ng1 Rb5 axb5 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 Kf7 Kd3 e5 Ke4 a4 g4 a3 f4 b3 d4 a2 c4 b2 f6 Ke6 g6 Bd6 c6 Bb4 g7 Qe8 f7 Na6 f8B Bc5 d5+ Kf6 g5+ Kg6 b6 Qe6 f5+ Kf7 c7 Qe8 f6 Kg6 b7 Bb6 b8B Qe6 c5 Qd6 c6 Nh6 f7 Qc5 Bd6 Rf8 Qg4 Re8 f8B Qa3 Rh4 Nf5 Nc3 b1N Nge2 Ne7 Bb2 Bd4 Qg3 Bb7 c8N Qb3 Nb6 Nd2+ Kd3 Kf5 g8Q Qd1 Rb1 a1N g6 Nab3 g7 Ng6 Bdc7 Na5 Nf4 Bc8 Qh2 Nb7 Rg4 Qb3 Ne6 e4+ Ke2 e3 Kd3 e2 Bb4 e1Q Nf8 Re5 Ba5 Qa3 Qh4 Qb3 Be2 Qa3 Bd1 Nac5+ Kc2 Qe2 Na2 Qh3 Nb4 Qhd3+ Kc1 Bc3 Ba4 Qee4 Ba3 Ba1 Bb2 Qf4 Kd1 Ke4 Bc3 Rf5 B7e5 Rh5 Bbc7 Ke3 Rb2 Qf7 Rb3 Qdf1+ Kc2 Qe8 Bb2+ Ke2 Kc3 Kd1 Kd4 Qb5 Qf7 Qf1 g8Q Qh3 Bc3 Kc1 Qf4 Qf3 Bb2+ Kb1 Bh8 Ne7 Qfg5 Qd3+ Ke5 Ng6+ Kf6 Nd6 Qh3 Ba6 Qgh4 Ndb7 Qh2 Qg3 Q2h3 Bf1 Qg2 Qd3 Qgg3 Bg2 Bbe5+ Kc1 Na6 Kc2 Rb5+ Kc1 Nb4 Kb1 Nc8 Nd8 Rb8 Ndb7 Nb6 Qe6+
2R2nQB/B1QR2K1/2qN1R1p/2pB4/2q2b2/k1bR1bbP/P6Q/n1RN2r1 w - - 0 1 legal: proof: e4 d5 g4 a5 b4 f5 bxa5 d4 exf5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 b5 g5 Ra6 f6 Nd7 f5 Nb8 f7+ Kd7 Qc2 Bb7 Qd1 Rf6 gxf6 Bc8 Ke2 Kd6 Kd3 Kc5 Ke4 Kb4 Ke5 g5 d4 c6 d6 e6 h3 g4 d7 g3 d5 g2 d6 h6 a6 Bb7 a7 Qe8 a8Q Qd8 Qc2 Ba6 Na3 Bb7 Bb2 Qb6 d8R Bg7 f8B Ne7 d7 Na6 Ne2 g1B Rc1 Be3 Bg2 Rg8 Nc4 Nc5 Nd6 Nb3 Rhd1 Na1 Nc3 c5 Rd3 Qc6 Bd5 Bh8 Qh2 Rg1 Nd1 Bg7 Qc8 Ka4 Re8 b4 d8R b3 Qc7 Ba8 Bc3 b2 Rd7 b1Q Rc8 Ka3 Ba5+ Qb3 Bb6 Bh8 Bg7 Bb7 f7 Bf4+ Kf6 e5 f8Q e4 Qg8 e3 Kf7 e2 f6 e1B Ba7 Beg3 Kf8 Qc3 f7 Ng6+ Ke8 Be3 f8R Bef4 Rf6 Nf8 Kf7 Ba8 Rf5 Qb3 Bc3 Bhe5 Rf6 Qc4 Kg7 Bd4 Be1+ Bc3 Bf2 Be5 Bd4 Bef4 Rf5 Nh7 Kf7 Rg2 Be6 Q6a4 Bh8 Rg1 Rf6 Nf8 Kg7 Bf3 Bd5 Qc6
brBq3N/r7/4npRQ/5Kq1/2N4N/4PPBn/QQp1N1R1/2BqNk1q w - - 0 1 illegal: No possible last move
Q6B/1pQp4/N2n3r/5nRB/qPb1kNn1/KQ4B1/2Prn1q1/NB3R1B w - - 0 1 illegal: No proof kernel forced: wxLB
RR1Q1b1B/1p1B3k/2B2bq1/b1q2P2/bB2r3/1P1N2p1/1K1QNrB1/n3R2N w - - 0 1 illegal: No proof kernel
3QbB1K/2bQR1p1/P2N2B1/1b2q3/2B2pr1/N2B4/n1bQ1nP1/1Bq2RNk w - - 0 1 illegal: No proof kernel
NK6/4p2n/1B1B1bQr/R1Q1Rb2/BR3bNp/5q1P/b1qkPN2/rB3B2 w - - 1 2 legal: proof: c4 a5 b4 g5 a4 b5 axb5 d5 cxd5 a4 f4 Nc6 fxg5 Na5 bxa5 Bd7 Nf3 Be6 Ng1 Bc8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 g4 Kc4 d4 c5 b6 h5 b7 a3 b8R f6 g6 a2 g7 Be6 d6 Bc8 a6 Rh7 d5 Rh6 a7 Be6 d7 Qe8 d8B Rh7 d6 Bf7 d7 Nh6 g8B Rg7 g5 Rh7 g6 Rh8 g7 Rh7 Nd2+ Kc3 Nh3 c4 Nf2 Bg6+ Kd5 f5 Kc6 f4 Kb7 f3 Ng4 f2 Bb6 Bb1 d8Q Nf7 Qc8 Rh6 Ba3 Ng5 Bd6 Nh7 Qc5 Qf7 h3 h4 Rg1 Bf5 Qb1 Qd5+ Kc7 Qh1 Bf7 Qf3 g8B Bg7 Rb7 Bf6 Bg6 Bg5 Qe4 Bf4 Qec6 Kc2 Ne4 c3 Bc4 Qg2 Bb5 Qf3 Re1 a1B Ba4+ Kb2 Rd1 c2 Rd5 c1Q Re5 Qc2 Qe8 Kc1 Rh1 Rd8 a8N Rd7+ Kb8 Kd1 Re6 Bf6 Re5 Rc7 Ra7 Ke1 Ra5 Ra7 Bf7 Ra6 Ba2 Ra7 Bb1 Kd1 Bg2+ f1B Nef2+ Kd2 Qg6 Ra6 Rg1 Ra7 Bh1 Bg2 Rc1 Qcd3 Rc4 Qc2 Rb4 Qfd3 Rd4 Bd5 Rb4 Qf3 Bg2 Ba2 Bf1 Rc7 Qb5 Rc3 Qc5 Ra3 Rbb5 Bg8 Rb2 Ra1 Rb4 Ba2
n1Q1BkN1/p1QR1b2/q3Q2N/Rq1B2K1/rrn3Pn/3p1N1n/P2N4/1N2B3 w - - 0 1 legal: proof: d4 g5 h4 c5 hxg5 e5 dxe5 c4 g4 c3 bxc3 Bc5 c4 Bd4 c5 Be3 Qd3 Bf4 Qd1 Bg3 fxg3 Kf8 Qd5 Ke7 Qd1 Ke8 Kf2 h5 Ke3 b5 Kf4 f5 c4 d5 e4 d4 c6 b4 g6 b3 c7 h4 e6 b2 e7 h3 e5 h2 c5 Nh6 g7 Nc6 g8N Qd7 g5 Ba6 c8Q+ Kf7 e8B+ Kg7 g4 Nd8 c6 Kf8 e6 Rb8 c7 Rb4 g6 Bc4 Bg2 Ra4 Qe2 Qb5 Kg5 f4+ Bd5 f3 Bd2 f2 Nf3 f1Q Be1 Nf5 Nh6 Nh4 Qd7 Bb3 c8Q Qa6 Qec2 Qfb5 Q2c7 Rh7 Rf1 h1N Qdc6 Nf2 e7+ Kg7 Q6e6 Nh3+ Kh5 Rh8 Rf2 Rf8 Rc2 Rf4 Rc5 Qf1 Ra5 Qfb5 Bc6 Re4 e8N+ Kf8 Nf6 d3 Be8 Red4 Ne4 Rdb4 Ned2 Bc4 Nc3 Bb3 Rc1 b1N Rc2 Na3 Ncb1 Nc4 Rc1 Nb6 Rc6 Nb7 Rd6 Na8 Rd7 Nd6 Bf7+ Kg7 Be8+ Kh8 g7+ Kh7 Bf7 Nc4 g8N Kg7 Be8+ Kf8 Qeb6 Ng1 Kg5 Ne5 Be4 Bf7 Bd5 Nc4 Qe6 Nh3+
5RR1/1BBrbp2/2pb2R1/RNQ5/brP2PK1/5r1n/QR3Q2/1Nk2rBn w - - 1 2 legal: proof: d4 a5 g4 b5 a4 h5 axb5 e5 gxh5 a4 dxe5 Qf6 b3 Qb6 b4 Qa5 bxa5 Be7 Ra3 Bc5 Ra1 Bf8 c4 Ke7 h4 Ke6 e4 g5 Ke2 d5 Kf3 d4 h6 d3 b6 a3 b7 d2 h7 a2 a6 Ne7 h5 Nd5 h6 Nb4 a7 Bc5 Kg4 Bd6 f4 Rg8 h8R Re8 h7 Re7 Qf3 d1R Rg8 Rd7 h8B Rd3 Qf2 N8c6 b8R Nd8 Bg2 Rf3 Ne2 Nd3 Rb2 Rb8 a8Q Rb4 Nec3 Ba6 Qc5 Bb5 Be3 Ba4 Rg1 Be7 Nb5 Nf2+ Kh5 Nh1 Kg4 Nc6 Qaa7 Nd4 Bf6 Bd6 Bd8 Ne2 Qa5 Rb3 Qe1 Rb4 Qf2 Be7 Bh3 c6 Bc7 Bd6 Rg2 Ng1 Rg3 Ke7 e6 Kf6 e7 Ke6 e8Q+ Kf6 Bg2 Nh3 Qa8 Ke6 e5 Be7 Kh5 Kf5 e6+ Ke4 Kg4 Bd6 e7 Kd3 e8R Be7 Kh5 g4 Ref8 Bd6 Qe1 Be7 Bg1 Bd6 Qef2 Be7 Re2 Bd6 Bf1 Be7 Rg2 g3 Kg4 Bd6 Nd2 Kc2 Nb1+ Kc1 Rb2 Be7 Bd3 Bd6 Bf5 Be7 Rh2 g2 Qa5 Ng5 Rh6 Nh3 Rhg6 Bd6 Bh2 g1B Be6 Re7 Bc8 Rd7 Bb7 Be7 Qfd4 Bf2 Bg1 Bd6 Qa6 Bh4 Qf2 Bhe7 Qab6 Kd1 Qa6 Bc2 Qg3 Kc1 N1a3+ Kd2 Qgf2+ Kd3 Rab1 a1R Ra2 Bb3 Rbb2 Rf1 Nb1 Bc2 Qfd4+ Ke2 Qf2+ Kd1 Qa3 Kc1 Qb3 Kd1 Ra5 Kc1 Qa2 Ba4
NBr2R2/1N3pQB/nbQK1R2/6QP/3Qr1rb/2N2Q2/2r1pP1k/4B1nb w - - 0 1 legal: proof: e4 d5 g4 b5 c4 h5 cxd5 b4 gxh5 b3 axb3 Rh6 b4 Rh7 b5 Rh8 d4 c6 e5 Kd7 d6 Ke6 d5+ Kf5 e6 Qd7 exd7 Kf6 Kd2 Kf5 Kd3 e5 Kc4 g5 Kc5 a5 d8Q g4 b4 e4 h4 a4 h6 e3 h7 Kf4 b6 a3 b7 g3 b5 a2 b6 g2 Nd2 Bg7 d7 Be5 d6 Bg7 Ne2+ Kg4 Nc4 g1R Qg5+ Kf3 d8Q Bf6 d7 Na6+ Kd6 c5 b8Q Ne7 b7 Nd5 Bd2 Nf4 Qbc7 Rg4 b8B Bb7 Nb6 c4 Be1 Re8 h8Q c3 Qc6+ Re4 Qhg7 c2 Nc3+ Ne2 h5 c1R Rh4 Rc2 Bh3 Rg3 Bf5 Kg2 Bh7 Ng1 Rf4 Kh2 Qf3 e2 Rd1 Bd4 Rf6 a1B Qdh8 Rgg4 d8N Be3 Rd5 Bb2 Re5 Bd4 Re8 Bc1 Rf8 Bb2 Bc7 Rc8 Na8 Bb6 Bb8 Ba1 Qc7 Bd5 Qc6 Bb2 Nb7 Bc1 Q5g6 Bg5 Q6h6 Bh4 Qhe3 Ba5 Qd4 Bb6 Qg5 Re3 Qhg7 Be4 Qff5 Bh1 Qff3 Ree4
3RBb1B/1kqN4/1N3P2/3RB1NN/pRP1b1n1/r2r1Qp1/pr2K2N/Q4n2 w - - 0 1 illegal: Other
RR1qQ3/rQBrn1Q1/5PNN/p1b1Bn1B/7p/BP2R2p/1K2rkbB/8 w - - 0 1 illegal: Other
BRr1Q1Q1/4Q3/Rp1n1R2/bB3b2/2p1R1rr/n1PqNR2/2P1N1p1/K3k1B1 w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c6 b4 Qb6 bxa5 Qb5 Bd3 Qb2 Bf1 Qc3 dxc3 Ra7 Qe2 Ra6 Qd1 Ra8 Kd2 Kf7 f4 Kf6 a4 e5 h4 g5 h6 d5 h5 b6 h7 g4 a6 c5 h6 g3 a7 e4 a5 g2 a6 d4 Ne2 d3 Qe1 Bb7 Rh4 Bc8 Na3 Bb7 Nc4 Bd6 Ne3 Bc8 Ba3 Ne7 Kc1 d2+ Kb2 Rd8 h8R d1Q h7 Nbc6 Rg8 Rb8 a8B Ne5 a7 Qd3 h8R Rb7 Rg3 Nc4+ Ka2 Be6 Rf3 Rc8 Qg3 Rbc7 Qg8 Rd7 Bb4 Na3+ Kb2 Rdd8 Ra2 Rf8 Ka1 Rf7 Qe8 Rh7 Rg4 Rh4 Qg8 Nc4 Ra6 Na3 Rh6+ Ng6 Rh8 Ne5 Qe8 Nec4 Qg8 Ke7 f6+ Kd7 f7 Bf5 f8Q Be7 Qgf7 Nd6 Q7e8+ Ke6 Rh6+ Bg6 f5+ Ke5 f6 Bf5 Rgf4 Rg4 f7 Rh4 Nd1 e3 Qg8 Rg4 f8Q Rh4 Ng1 e2 Rf6 e1R Rc4 Ree4 Ne3 Reg4 Rd4 Qd2 Bb5 c4 Ne2 Qd3 Bc5 Be4 Bac6 Bg6 a8R Bf5 Rd5+ Ke4 Rb8 Rg6 Ba8 Rg3 Rf1 Rgg4 Re1 Kf3 Bd4 Bd8 Qfe7 Kf2 Re5 Bc7 Re4 Bd8 Rh1 Bc7 Rh3 Ke1 Rf3 Bd8 Qee6 Be7 Qe5 Nb7 Qc7 Bb4 Qce7 Ba5 Nd1 Kd2 Bg1 Nd6 Ne3 Ke1
Q1R1rrb1/1B1Kq3/PRpn1pN1/1N2BQbP/4Qp2/n2B3b/3kNB2/3B4 w - - 0 1 illegal: Other
3b2R1/2krN3/pn2b1Q1/rRPQ2Bq/1P1r2RR/1pp2BK1/2RN1N2/4Bn2 w - - 0 1 illegal: No proof kernel
2r1nR2/1B2P2B/QrQ3Bp/2NnN3/3b2pQ/Kq1p4/4RBkP/1NB3rb w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 Kf7 Kc3 a5 Kb3 g5 c4 d5 f4 g4 e4 a4+ Ka3 d4 b6 h6 e6+ Kf6 e5+ Ke7 c6 Bg7 c5 Ra5 c7 Nc6 f6+ Kf8 f7 Ke7 f8B+ Ke8 b7 Nce7 b8N Nc6 f5 Rh7 e7 Kf7 e6+ Kf6 e8B Ke5 f6 Ke4 f7 Ba6 c8Q Bc4 Qc2+ Bd3 Ra2 Qb6 Qa6 Na7 c6 Re5 c7 Rc5 c8B Nf6 Nf3 Nd5 Bb7 Nc8 Nd7 Nd6 Nfe5 Rc8 Qc6 Bb5 Bc4 d3 Rf1 Bf6 Rc2 Rg7 Be7 Rg6 f8Q Bg7 Bf7 Ne8 Bh4 Bh8 e7 Rd6 Nf3 Bd4 Bf2 Rg6 Nfe5 Rd6 Ng6 Kf3 Re2 Kg2 Nc5 Rf6 Ne5 Rd6 Qc7 Bc6 Bg6 Re6 Qf6 Rd6 Ka2 a3 Qh4 Re6 Bh7 Rf6 Bb5 Re6 Kb3 a2 Ka3 Rf6 Bc4 a1R+ Ba2 Qb5 Qcb6 Bd7 Qc7 Rb6 Qc6 Bf5 Bg6 Be4 Bg1+ Kh1 Rf8 Qc4 Bf2 Kg2 Bh7 Kf1 Bf4 Bh1 Nc3 Ndc7 B4e3 Rc1 Nb1 Qd5 Bc4 Kg2 Bg6 Rg1 Bc1 Kf1 Ba2 Qc4 Bh7 Qb5 Be6 Nd5 Bef5 Kg2 Bfg6 Qb3+
3B1NnR/2P1pR2/RbQ1Bp2/Rb3QPB/2n3rb/4q3/2pk2NR/NK4r1 w - - 0 1 illegal: No possible last move
2B1bQ1B/1nPp1N2/2Q1r2R/2p1P1R1/NQn5/pbrB3B/3q4/2NkbK1B w - - 0 1 illegal: No proof kernel
1QK1b2B/1p2rpQQ/8/kpBqR2Q/N3PR2/r2P2n1/B2bQ2R/1nr3N1 w - - 0 1 illegal: Other
4KBr1/qp2P2N/5BQ1/R5B1/2R1Brk1/RQp2r1n/Qp2NPb1/b1n1B3 w - - 0 1 illegal: Other
N1N3R1/bN2N1nP/2p1BBr1/q1N5/Q1n1pk2/4pq2/1bR1Pr2/2B1QQ1K w - - 0 1 illegal: Other
8/QR1R2P1/q1KNQ1PN/kn3Q1p/2BQ3B/b3r3/3qpnp1/NQRb1r2 w - - 0 1 illegal: No possible last move
2r2R1N/b3pn2/3p1QrQ/2QBn1Q1/k2K2R1/N1Bq2pb/RP2P1q1/B4Q2 w - - 0 1 illegal: Other
Bn1Nqb2/nQ2p3/Qp1N3P/1rkp2B1/K3P1BN/2N5/2q1R3/b1NR1R1r w - - 0 1 legal: proof: g4 a5 d4 h5 b4 c5 bxa5 g5 dxc5 b6 f3 Bb7 gxh5 g4 Qd6 g3 Qd1 Be4 Bd2 Bf5 Bc1 Bg4 fxg4 Ra6 Bf4 Ra7 Bc1 Ra8 Kd2 f5 Kc3 d5 Kb4 Kd7 c4 Kc6 a4 f4 e4 f3 h4 f2 g5 g2 a6 Qc8 h6 Qc7 h7 Qd7 g6 Nh6 a7 Qb7 h5 Qc7 a5 Nf7 g7 Ne5 g8R Bh6 a6 Nf7 Qe2 Ng5 Ka4 Qc8 Nc3 Nf7 Bg5 Nd6 Rd1 Bf8 h6 Kd7 c6+ Ke6 c7 Nd7 c5 Qb8 c8Q Nc4 c6 Kd6 c7 Nde5 Qb7 Ne3 c8N+ Kc5 Nd6 Nd7 Rg6 Rg8 h8N Nc2 Rh2 Na1 Rf6 Qe8 Ng6 Nb3 Nh4 Na5 Rf7 Rc8 a8B Nc6 a7 Ndb8 Qea6 Rg7 Nge2 g1B Bh3 f1Q Rf4 Bd4 Bg4 Qg2 Rff1 Rf7 Nc1 Qc2+ Ka3 Rf3 Rhf2 Rh3 Re2 Qd3 Kb3 Rh1 Ka4 Qc2+ Ka3 Nd7 Nb1 Qd2 Ka4 Ba1 Nc3 Qd3 Qc7 Nb8 Bb7 Kd4 a8N Na7+ Qd7 Rc6 Nc7 Rc5 Ba8 Rb5 Ne6+ Ke5 Nd8 Kd4 Qdb7 Kc5 Bf3 Qb1 Bg4 Qc2+
Rb2n1q1/NP4R1/K1B3N1/1p2qP2/3n4/Rb1R2RB/pB2kNpQ/Qr2r3 w - - 0 1 illegal: No proof kernel
R1KQ1rBq/1pR3Bp/B1p3N1/n1r1Q1N1/2P5/kr3bb1/P1RQ4/1R3R1b w - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 a5 fxg5 a4 h4 a3 bxa3 Ne7 a4 Ng8 a5 Bg7 Nc3 Bh6 Nb1 Bf8 g4 Bh6 g6 Bg7 h5 Bf8 g5 Nc6 h6 Nce7 Nh3 Nf5 Ng1 Ng7 hxg7 Qe7 Bf4 Qf6 Bc1 Qd8 Kf2 Ke7 Ke3 f5 Kf4 d5 e4 d4 e6 Kd6 a6 Kc5 Ke5 Kb4 e7 f4 e8Q c6 a7 d3 Nd2 f3 Rb1+ Ka4 Nh3 f2 Nc4 d2 Bb2 Nh6 g8Q Bb4 g7 Nf5 g6 Bf8 Ng5 Rb8 a8R+ Qa5+ Qd5 Ba3 g8B Bb4 g7 Bd7 Qd8 Be8 Ke6 Bd6 e5 Bh5 Kd7 Bf3 e6 Nd4 e7 Bg3 e8R Nb3 Qe5 Qa7 Be2 f1B Re7 B1g2 Rf1 Bh1 Qc1 d1R+ Qd2 Qa6 Qe3 Qa5 Bf7 Nc1 g8R Be5 Rf8 Bg3 Qdb6 Nb3 Qdd4 Re8 Qd8 Bd6 Kc8 Bh5 Rc7 Re5 c3 Rb5 Ne5+ Rb4 Re8 Rf8 Ba6 Rc1 Ng6 Qe5 Bg8 B5f3 Qef4 Qf6 Re2 Qh8 Qd5 Na5 c4 Rc3 Qdd4 Rb5 Rc2 Rcb3 Qdd2 Rc5 Bg7 Ka3 Qf5 Bf4 Qe5 Bg3
8/1P2BN2/1p1r4/KB2b2q/RP1Qb2p/1k1N1Q1p/3b1nNR/1NnnBNR1 w - - 0 1 illegal: Other
1nQ2Q1q/NP3N2/3p2n1/1B2B3/1bQ1K3/2pb1p1R/r2P1Q1n/1N1RRQbk w - - 0 1 legal: proof: g4 e5 a4 b5 b4 a5 c4 h5 gxh5 e4 c5 e3 c6 Be7 fxe3 Ba6 e4 Bb7 axb5 a4 b6 Bc8 b5 Ra7 e5 Rb7 cxb7 Bf8 Kf2 Ke7 Ke3 Ke6 h4 Kf5 h6 Kg4 h7 Kg3 e6 g5 h5 c5 e7 f5 e8Q a3 h6 a2 Qe6 g4 Qc4 f4+ Ke4 d6 Bb2 f3 Rh3+ Kf2 Be5 Nd7 b8N g3 b7 g2 b6 Be7 Nc6 Bh4 b8Q Ba6 b7 Ne7 Na7 Ng6 Qc8 Bf6 e3 Re8 h8Q Nb8 Qf8 Bh8 h7 Qf6 Qcc2 Be2 Qc4 Bg7 h8Q Rd8 Qd4 c4 Qhg8 c3 Qgc4 Bh6 Rh1 Qh8 Qdc5 Bf4 Nh3+ Kg3 Ng5 g1B Nf7 Kf2 Bh3 Re8 Bd7 Kg2 Rh4 Bfh2 Bb5 Kh1 Qf1 Rd8 Rg4 Bg3 Qb6 Bf2 Rg3 Re8 Na3 Rd8 Rd1 a1N Nb1 Nc2 Qbc5 Nd4 Qb6 Nf5 Qbc5 Nh6 Q5d4 Ng4 Rh3+ Nh2 Kf5 Nf4 e4 Bh4 Qdf2 Ng6 Bg7 Nc6 e5 Nb8 e6 Bg5 e7 Be3 e8R Bc5 Re3 Bb4 Ke4 Re8+ Be5 Rd8 Qd7 Rc8 Qg4 Rc6 Qgc8 Ra6 Q4c6 Ra2 Qa6 Bc4 Ree1 Be2 Qac6 Ra4 Qd5 Ra2 Qdc4 Bd3+
1rnb2QR/p2NP2N/6B1/1p2Qb1K/1P2n1p1/1n1B2Q1/1R3Q1Q/1qBkN1q1 w - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Ne7 fxe5 Na6 a4 Rb8 a5 Rb6 axb6 Ng8 Kf2 Ke7 Kf3 g5 h4 f5 d4 c5 e4 f4 b4 c4 b7 c3 b8N c2 e6 Kd6 Kg4 f3 e5+ Ke7 h6 f2 h7 Nc7 h5 Na8 h6 Qd7 d6+ Ke8 d5 Qe7 d7+ Kd8 Bd3 Kc7 d8Q+ Kb7 d6 f1N d7 Bg7 Nc3 Qf6 e7 Ng3 e8B Qc6 e6 Ne7 Qf3 Nf1 Rb1 Nd2 Ne4 Qc5 Qg3 Nb3 Nf3 Nf5 Qf6 Nd6 d8Q Qg1 Rb2 Nb6 Nd7 Kc6 Ne1 Kd5 Qf2 Bf6 Kh5 g4 Ng5 Ne4 Bg6 Be7 Qdf8 Bd8 e7 Rg8 Qfh2 Kd4 Qff2+ Kc3 h8Q+ Rg7 Nb8 Bf5 h7 Nc8 Qg8 Rf7 Nd7 Rf8 Be3 c1Q h8Q+ Rf6 Nh7 Qb1 Ne5 Rb6 Nd7+ Nd4 Qhe5 Rb8 Re2 Qc2 Bh6 Kb2 Rd2 Kc1 Bf4 Qb1 Rb2+ Kd1 Bc1 Nb3 Qhh3 Qh2 Kh4 Qg2 Nhf6 Qf1 Qhg2 Ncd6 Rh3 Ned2 Q2h2 Qh1 Kg5 Nc8 Rh8 Ne4+ Kh5 Qf1 Nh7 Qg1
1N3n1N/1qr2Pp1/2R1QQN1/1N1prK1R/1b3BP1/pqBB4/1q4N1/k4b1R w - - 0 1 illegal: No proof kernel
1r6/1P1QRqpk/R1R4B/2pqb3/NnQ2bB1/1KN5/R1PQRpN1/2r4b w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 f4 Ke7 e4 Qe8 e6 Kf6 e7 Ke6 e5 Qd8 Kf2 Nc6 Ke1 Nd4 f5+ Kd5 Bd3 Kc5 Bf1 Ne6 fxe6 Kb4 Ke2 Kc4 Ke1+ Kc5 Kd2 Kd5 Kc3+ Ke4 e8Q Kf5 b4 a5 h4 c5 h6 Kg6 h7 d5 h5+ Kf5 h6 Kg6 e7 d4+ Kb3 d3 b6 d2 b7 Qb6 b8N Bg4 e6 Bf3 b5 Nf6 Qd7 Qc6 e8R Qd6 e7 Qe5 b6 Ne4 b7 f5 Nc3 f4 Nge2 Qd4 Bh3 Qd6 Bg4 Nf6 Ra2 Nd5 Rg1 Rg8 h8R Nb4 h7 Bh1 Qf1 f3 Nf4+ Kh6 Ng2 f2 Qc4 Qc7 Re1 Qf4 Rc8 d1Q e8R Qd5 R1e2 Bd6 R8e7 Re8 Rc6 a4+ Kb2 a3+ Kb3 Ra6 Rg8 Kg6 h8Q Qff7 Bh6 Rd8 Rge8 Ra4 Qf8 Kh7 R7e6 Ra8 R8e7 Bf4 Ra6 Rc8 Qfd8 Ra7 Rec6 Ra8 Rb2 a2 Qa5 a1B Ra2 Ra7 Qad8 Qde6 Qd2 Qd5 Nd7 Rb8 Nb6 Raa8 Nba4 Bb2 Nb5 Bbe5 Qe8 Rd8 Nbc3 Rab8 Bf3 Rd6 Qd7 Rg6 Bh5 Rg3 Bg4 Rd3 Qe1 Rd1 Qd2 Rc1
k7/1pBpN1K1/2pb1r2/q1Q1PBN1/RP1r1qb1/6n1/2R1BQBB/1rQ2N2 w - - 0 1 illegal: No proof kernel forced: wxLB
bR4NB/rb2n3/5b1Q/2kPr2N/2pn1Q1N/N2BN1p1/Q1BpR1P1/n5K1 w - - 0 1 illegal: No proof kernel
1Rb1kb2/r3p1rR/3BB3/B2Q1KB1/r1R1nQ2/3p3N/Pp2P3/qQ1N2rB w - - 0 1 legal: proof: g4 a5 d4 g5 b4 f5 bxa5 c5 gxf5 Nc6 dxc5 Ne5 h4 g4 Qd4 Nf7 Qd1 Ng5 hxg5 Ra6 Rh5 Ra7 Rh1 Ra8 Kd2 b5 Kd3 d5 c4 h5 f4 g3 g6 d4 Ke4 b4 g7 d3 a6 g2 a7 b3 c6 b2 c7 h4 c5 h3 c6 h2 f6 Ba6 c8Q Bc4 f5 Nh6 g8Q Rb8 a8B Rb5 c7 Be6 Nh3 g1R Nc3 Rb3 Qb8 Bc8 f7+ Kd7 f6 Rg5 Bf4 Rd5 Qb1 Ba6 c8R Rh7 Nd1 Rbb5 Bd6 Bg7 f8B Rh5 Qd5 Rb7 f7 Rc7 Qb4 Rf5 Rb8 Ng4 Bb7 Bh6 Bg7 Qc8 f8B Ke8 Bc3 Rg7 Qbd4 Rf3 Ba5 Nf6+ Ke5 Rf2 Qf4 Ne4 Bg2 Rd7 Kf5 Rf1 Bf3 Rfg1 Bg4 Rc7+ Ke5 Rd7 Be6 Rc7 Ba8 Ra7 Kf5 R1g4 Rb7 Qc1 Rb8+ Bc8 Bb7 Rg8 Bg7 Rg1 Bf6 Bf8 Bg5 Rg7 Qc2 Qd2 Rc1 Qe1 Qb1 Rg4 Rc4 Rh4 Rg1 h1R Rg2 Rg1 Rh2 Nd2 Qdd4 Rhg4 Bh1 Ne4 Qd5 Qd2 Nhf2 Qc1 Rh7 Rh4 Nh3 Rhg4 Qc2 Qa1 Qb1 Nc3 Qg3 Rd4 Qf4 Ne4 Rc3 Rb4 Rc4 Ra4
1R2R1Kn/k3BpQ1/rR1b4/rn1NbpP1/2R1BP2/1Q1b2p1/2b2BN1/2N1R3 w - - 0 1 illegal: Other
b1k1Kb2/QbNr2R1/3rB2B/1R1b1p1p/1N6/RQ4Qn/2nP1Pp1/QB1Q4 w - - 0 1 illegal: Other
b1kB2N1/qN2pp1n/1B3B2/pPB1nR2/3QB3/1RbQP3/p4Q2/1rNK1r2 w - - 0 1 illegal: Other
4Nq1B/2p3B1/K2p1P1Q/1p1N1B1P/1p1B2BR/1k1bn1N1/2RR1Qrn/2b2r2 w - - 0 1 illegal: Other
3NQQ2/pR1B1Rb1/NK1n4/2N2p1P/1RR4R/1Q1b2pq/rp3k1P/B1r1n3 w - - 0 1 illegal: Other
Q2QN3/5P2/bp3Q1p/p2q1B1b/1R1B1pNP/Kr2Nn1k/2r1Q3/1Q2bRB1 w - - 0 1 illegal: No proof kernel
1Br1R2Q/Qp2BBbN/1Q2B1r1/NP3n2/1nRnp1K1/1PB3p1/4k1p1/3qN3 w - - 0 1 illegal: Other
1NBRB3/k1pqB1B1/1Rn1br1p/1Qr1r3/2N5/pP3BRQ/2Q1Kp1P/b7 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Nc6 cxd5 Nd4 Nf3 Nf5 gxf5 Ne7 Ng1 Ng8 d4 Kd7 e4 g5 b6 a5 b3 h6 e6+ Kd6 b7 f3 b8Q g4 f6 a4 e7 f2+ Ke2 g3 e8B g2 f7 Bh3 e5+ Ke7 d6+ Ke6 d5+ Kf5 d7 Ke4 e6 Ra7 d6 Nf6 e7 Rh7 Qb5 Qb8 d8B Qc8 d7 Bg7 f8Q Qb7 Na3 Bg4+ Nf3 g1R Bb2 Qd5 Bh5 Rg3 e8B Rg1 Nc4 Ra5 Be7 Be6 d8R Qd7 Nfe5 Ng4 Nc6 Ne5 Bh3 Rg5 Nb8 Nc6 Rg1 Rc5 Qc2+ Kd5 Rg3 a3 Rc1 Be5 Qff5 Rf7 Rcg1 Rf6 Rg6 Bf7 R1g3 Be6 Qg4 Bc3 Qh4 Bd4 Bf5 Bc3 Qh3 Bd4 Bc1 Ba1 Bb2 Rf7 Bg7 Rf6 Bf3+ Kd4 Qb7 Re5+ Kd2 Rad5 Qb5 Rc5 R6g4+ Re4 Na6 Bd5 Na5 Qd6 Qbf1 Rc4 Bc8 Be6 Nb8 Kc5+ Qfd3 Kb6 Kd1 Red4 Ke2 Rc5 Re4 Ra4 Rb4+ Ka7 Rb6 Qd7 Qb5 Rd4 Nc4 Rdd5 Qh5 Rg5 Qh3 Rge5+
B3rB2/2RnPpp1/pq1pk2B/5b1K/NRR3r1/1N2nPQ1/7Q/2RR1Q1r w - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 c4 h4 cxb5 h3 a4 Be7 a5 Nc6 gxh3 Nb8 h4 Bc5 h5 Bb6 axb6 Qh4 Qd6 Qf6 Qd1 Qd8 h4 Ke7 e4 c5 Ke2 c4 Kf3 a6 Kg4 c3 b7 c2 e6 Ra7 h6 Qc7 h5 Ra8 b6 Qd8 h7 Qe8 h6 Qf8 b5 Qe8 e5 Qf8 Nc3 Qd8 Nf3 Qf8 Nd4 Ra7 Na4 Qe8 Bg2 Qf8 Nb3 Qd8 Qf1 Ra8 Kh5 Nc6 b8B Qe8 b7 Nd4 b6 Nf5 Bd6+ Kd8 b8Q Ra7 b7 Ra8 Bf8 Qe7 Qd6 Ne3 b8R Ng4 Rb4 Ra7 Ba8 Qe8 f3 Bb7 e7+ Kc8 e6 Be4 Qh2 d6 Qg3 Qd8 e8R Bf5 Re7 Qb6 Rc7+ Kd8 Bf4 Rb7 Rd1 c1R Bd2 Ne3 e7+ Ke8 Rhh4 Rb8 Rhc4 Nf6+ Kg5 Nd7 Kh5 Rg8 h8Q Rc2 Bc1 Rg2 Qh7 Rh8 Bd2 Be6 Qc2 Bf5 h7 Nd5 Bh6 Ne3 Qcf2 Rc8 Qh2 Rg4 Qfg3 Ne5 R7c6 Kd7 Rc7+ Ke6 Rcc1 Re8 Rbc4 Rg8 h8R Nd7 Bf4 Nd5 Rb4 Bd3 Qc2 Rg5+ Kh4 Rg6 Rh5 Ne3 Rhc5 Bf5 Rcc4 Rh6+ Kg5 Rh1 Qce2 Rgh8 Qeh2 Nd5 Be3 Rh4 Bf4 Rg4+ Kh5 Ne3 Bg5 Qb5 Bh6 Qb6
k1N1Q3/pnp3qp/N1r1rR2/B2P1K1Q/Q7/R1p1r1R1/nBb4P/1B1R3R w - - 0 1 illegal: Other
2kq1n2/3brp1R/pb2BPP1/3p2B1/N1pQBR1R/qn5Q/6QR/N4RK1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bf8 hxg5 Nh6 c4 Ke7 b4 Qe8 b6 Nc6 c5 Nb8 b5 Ng8 c6 Qd8 Ra4 Ke8 Ra5 Na6 Ra2 Rb8 Ra1 Rb7 cxb7 Nb8 g4 d5 e4 Kd7 f4 c5 Kf2 h5 g6 a6 e6+ Ke8 g5 h4 f5 h3 e5 h2 e7 Kd7 e8B+ Ke7 e6 c4 f6+ Kd6 e7 Bf5 g7 Qc8 Bd7 Qc5+ Qd4 Rh4 e8R Nh6 g8Q Qb4 Na3 Qb1 Be6 Bh7 Bd3 Be7 Nc2 Rh5 Be4 Qb3 Ne2 Bf5 Nc3 Rh3 Na4 Nc6 b8R Ne5 b7 Kc7 b6+ Kc6 g6 Nd7 Qh8 Bb4 Bg5 Bd6 Raf1 Nf8 Na1 Rc3 Ra8 Rd3 b8R Re3 b7 Kc7 Rbd8 Qa3 b8Q+ Kc6 Re7 Bc5 Qg3 Bb6 Qg2 Re1 Ree8 Kc7 Rab8 Bg4 Ra8 Nf5 Qhh3 Ng3 Rab8 Ne2 Ra8 Nc1 Re7+ Nd7 Rh8 Nb3 Rh4 Bf5 Rah8 Kb7 R8h5 Kc8 Rh7 Re3 Rhg1 h1Q Rf4 Qh2 Rh1 Re1 Rfh4 Qc7 Kg1 Qd8 Re8 Kc7 Reh8 Nf8 Rf4 Re2 Rh2 Re3 Bc8 Bd7 Rhh4 Kb8 R8h7 Re1 Bf3 Re7 Be4 Bb5 Bg4 Bd7 Be6 Kc8
n2qRN2/p7/1p3bb1/Q1BBQp1B/1Pr4k/B2B1r2/R1P1NK1p/R1qQ4 w - - 0 1 legal: proof: f4 c5 a4 g5 d4 e5 dxc5 b6 fxe5 g4 a5 g3 a6 Nc6 hxg3 Nce7 g4 Nf5 g5 Nd6 Na3 Nb7 axb7 Qe7 Nb1 Qd8 b8B Ke7 e4 f5 g4 h5 b4 d5 c6 d4 c7 h4 e6 d3 e5 d2+ Kf2 h3 g6 h2 g5 Nh6 g7 Ba6 c8Q Ng8 g6 Bc4 Qc7+ Qd7 Bd3 Bb5 Ne2 Rh7 Nf4 Rh6 Nc3 Rh4 Ra2 Rg4 Nce2 Nf6 g8Q Ne8 g7 Rh4 Ba3 Rh5 Qc3 Rh3 Ng6+ Kd8 Qca1 Be7 Bd6 Bf6 Bc5 Rc8 Nf8 Nc7 Qh8 Na8 g8B Qd6 Qg7 Be8 Rf1 Bg6 e7+ Ke8 Bd5 Qd8 Re1 Rc6 Rg1 Re6 Qh8 Kf7 e8R Rg3 Qh4 Rg4 Qg3 Rc4 Qf4 Kg7 Rf1 Re7 e6 Rd7 Qc7 Kh6 e7 Kh5 Qae5 Rd6 Qb7 Rd7 Qa6 Kh4 Qa5 Rd6 Bg8 Rdd4 Bd5 Rf4+ Ke3 Qb8 Qc1 Rg4 Kf2 d1Q Qd2 Qa1 Rb1 Rg3 Qd1 Qb2 Rba1 Qc1 Rc8 Bh7 e8B Re3 Bh5 Bg6 Re8 Qd8 Nh7 Rg3 Nf8 Rf3+
kn1Bbq2/PR3pr1/2pq3p/1RB5/2Kr2RQ/3N1P2/QpQQ4/3Q1BnN w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 h4 Ra8 hxg5 Qd7 d4 Qb5 d6 Bg7 d5 Qd7 e3 Bd4 exd4 Qd8 Ke2 Kd7 Kd3 e5 a4 b5 g4 b4 a6 c6 a7 b3 a5 h6 f3 b2 a6 e4+ Kc4 e3 g6 e2 g7 e1Q g5 Nf6 g8Q Nh5 g6 Qee7 g7 Qc7 Nc3 Nf6 Ne4 Qed8 Be3 Ng4 Ne2 Qg5 Qh7 Qh5 g8R Qg5 N4g3 Qe5 Nc1 Qf6 Nd3 Qg7 Rh5 Qf6 Nh1 Nf2 Rg4 Kd8 d7 Ke7 d8B+ Kd7 d6 Qf5 d5 Re8 Bc5 Nh3 Ra3 Re2 Rb3 Re5 Rb7 Ng1 Qg6 Qf6 Qe4 Qh8 Qee2 Rg5 Qec2 Rg7 Qdd2 Ke8 Rf5 Bd7 Re5+ Kf8 Reg5 Be8 d7+ Qd6 Rh5 Qe7 d6 Qf6 Bc7 Qe7 d8Q Qg8 d7 Qd6 Qh4 Qh8 Qhf2 Ke7 d8Q+ Ke6 Qd4 Qhf8 Qh4 Kd7 Bd8+ Kc8 Rd5 Qd7 Qdd1 Qdd6 Qf4 Nd7 Qfd2 Rb8 Rb4 Rb5 a8Q+ Nb8 Qa7 Ra5 Rb7 Rb5 Qb6 Ra5 Qbb3 Rb5 a7 Ra5 Rb4 Rb5 Rh5 Kb7 Qa2 Ka8 Re5 Ra5 Re7 Rb5 Rb7 Ra5 Be3 Rag5 Bc5 Rd5 R4b5 Rd4+
4n2N/3RB3/p1n1Q1p1/1B1pQ3/P2N1qPp/NRnQ1NkN/RrnK3b/8 w - - 0 1 legal: proof: d4 b5 h4 c5 f4 e5 dxe5 d6 b4 a6 bxc5 f6 e4 g6 f5 Bb7 h5 Bc8 h6 Be6 fxe6 Ra7 Rh4 Re7 Rh1 Rg7 hxg7 Qc7 Bg5 Qd7 Bc1 Qd8 a4 Ke7 c4 h5 g4 b4 c6 b3 c5 f5 c7 f4 c8N+ Ke8 c6 h4 c7 b2 e7 Kf7 e8R f3 e6+ Kf6 e7 Ke5 Nb6 d5 c8Q f2+ Kd2 Kf4 e5 Qd7 e6 Qc6 Rd8 Qc4 e8N Rh5 e7 Nh6 g8N Qa2 Bb5 Nf5 Ng7 Qc4 e8Q Ne3 Na3 Qe4 Nh3+ Kg3 Nh6 Qe6 Nd7 Qd6 Ra2 Qf4 Nf7 Rf5 Nh8 Bd6 Ne6 Nc6 Nd4 Bb8 Ne5 b1N+ Kd3 f1N Rd7 Nc2 Nef3 Bd6 Qe5 Nfd2 Ke2 Ne4 Qd3 Bb8 Qg8 Bd6 Qge6 Nf6 Be3 Nc3+ Kd2 Ne8 Rb1 Rf7 Rb3 Bb8 Rd6 Rb7 Rd7 Rb6 Q5f5 Qe5 Bg5 Bc7 Be7 Qf4+ Qde3 Rb7 Qfe5 Ng7 Qg5 Qe5 Be2 Ne8 Rb4 Kg2 Bc4 Qe4 Qd3 Bh2 Rb1 Rb4 Bb5 Kg3 Rbb2 Ne3 Qge5+ Qf4 Rc2 Rb1 Rcb2 Nc2+ Qee3 Qf7 Rb3 Rb2 Q3e5+ Qf4+
QQ1R1n2/2K1B1kN/2Q1pRb1/2bBPr2/pQRqr3/Pn4Bn/qr6/Q3N3 w - - 0 1 illegal: No proof kernel
Bkb2R2/N1r2QBp/q2b1q1n/nNp2Nq1/bKP1NB1P/2RR4/5NQ1/7r w - - 0 1 illegal: No possible last move
2k2n1B/1Nb3Rn/p6q/q1QNpb1Q/PQ4r1/1Kn1PR2/B1Qr1NR1/3q1Q2 w - - 0 1 illegal: No proof kernel
3b3k/1RB4p/2BrB1R1/2rBqR1P/bK1pQ1bN/4Qr2/r1QPnB2/2N1n3 w - - 0 1 illegal: No proof kernel
4b3/kr1NR3/1N1b1Np1/qpbnbNnB/1r1N2PK/rQ2B2R/1P5Q/2R3Q1 w - - 0 1 illegal: No proof kernel
1N2b1RB/1BQ1Rr2/1QNq1bpR/n3p1r1/Rb2b2N/B1k3P1/2r1PKR1/7n w - - 0 1 illegal: No possible last move, all moves rejected
Qn2QB2/1QB3rr/p1BK4/RbQp2p1/PNN1R1Pn/bQq3k1/1n3b1N/8 w - - 0 1 illegal: No proof kernel
4b3/1q2nQ1B/1bR1B1B1/2RB2k1/2p1qp1r/2P1BP1p/QQ2n1N1/1K1R1rNb w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bd6 hxg5 Bf8 Kd2 Ke7 g4 a5 e4 d5 b4 c5 e6 h5 c3 f5 Kc2 f4 e5 a4 f3 c4 b6 h4 g6 h3 g5 a3 b7 a2 g7 d4 g6 Qd6 b5 Rh5 b6 Qc5 Be3 Ra5 Na3 Qd5 Bd3 Na6 b8Q Qd8 b7 Rh6 Qb1 Qd5 Qa7 Nc5 b8Q+ Bd7 Q8b2 Qb7 Kc1 Bc6 Nc2 Ra4 Ne1 Ne4 Ng2 Ng3 Be4 d3 Bd5 d2+ Kc2 Nf6 g8B Ne2 g7 Rh4 Bh7 Be8 g8B Bg7 Bf7 Ng8 Bfg6 Ng3 Bf5 d1B+ Kc1 Be2 Bfg6 Kd8 e7+ Kd7 Kc2 Bf1 e6+ Kd6 Kc1 Bd4 Qf5 Rb4 Qf7 Ke5 Rb1 a1Q Qaa2 Ne2+ Kc2 Bc6 e8B Ne7 Bd7 Bb6 Bc8 Be8 Bd7 Nc6 e7 Rb3 Rd1 Rb5 Rd3 Qe1 B7e6 Ra5 Rd1 Ra8 Kb1 Rb8 Qg8 Kf6 Qf7+ Kg5 Rh2 Qd2 Rh1 Qd4 Rd2 Qe4+ Rd3 Bd7 e8R Ne7 Rc8 Be8 Rc5 Qd4 Ne1 Bg2 Rd1 Rd8 Rh2 Bh1 Rg2+ Ng3 Rgd2 Ne2 Ng2 Ra8 Bde4+ Qe5 Rd6 Rb8 Rdc6 Rd8 Rc1 Rd1 B4d5 Rf1 Rd1 Qe4+
bN5R/2b1q3/q1BB1B1R/k2pBbrn/pN1P3B/P5pR/1nrQ2QK/4Q3 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 c5 bxc5 Nf6 g4 Ng8 gxh5 Qa5 Qe2 Qb6 Qd1 Qd8 f4 g5 Kf2 b5 Kg2 d5 d4 Kd7 c4 Kc7 h4 a5 c6 Kb6 a3 e5 c7 e4 h6 e3 h5 g4 f6 e2 h7 e1Q c5+ Ka6 f5 a4 h6 Qde8 f7 Q8e7 c6 Q7e4+ Kh2 Bd7 c8Q+ Ka5 f6 b4 c7 b3 Qe8 b2 c8Q Qg6 Qcc2 Bb4 f8B Qf5 f7 Be7 Nf3 Bd8 Bg7 Nc6 f8B Qfe4 Nc3 b1B Na2 Bc7+ Be5 Nb8 Qg2 Be6 Bb5 Nc6 Qdd2+ Nb4 Bc6 Q4e2 Bfd6 Qa6 Bf6 Bf7 Ne5 Bf5 Nd7 Rc8 Nb8 Qe7 Rb1 B7e6 Rb3 Bd7 Rc3 Nd3 Nb4 Nb2 Rh3 Qd8 Qee2 Qe7 Qee1 Be8 Bh4 Nf6 Be5 Rf8 h8B Rg8 h7 Nh5 B8f6 Rg5 h8R Bed7 Qd3 Be8 Bcf4 Bed7 Qdd2 Be8 Bb5 Bc6 Bd6 Ba8 B4e5 Bd8 Be8 Rc2 Bc6 Bc7 Bf2 Nf4 R3h6 Nh5 Bh4 Rc5 Rf1 Rc4 Rf3 Rc2 Rh3 g3+
2Qr1R1N/R2p1bp1/n1NR4/1Bp2nb1/B1qr1QPq/BNK4k/qN1PN3/8 w - - 0 1 illegal: No proof kernel
1R5N/pp1p3K/PQ2Bb2/1P1n2Q1/1B2RBbn/4rR2/kNbBb1q1/B4r1Q w - - 0 1 illegal: Other
1Br1K1Q1/B1p5/RR1p2R1/r1PrR2B/2qP2p1/4Qb2/n1rnN3/R1Nkb1Q1 w - - 0 1 illegal: No possible last move
5QQ1/2Rb1bpp/2pB1n1r/RbPQq3/3NR2N/1R1r2P1/K3B2k/R1b1n1N1 w - - 0 1 illegal: No proof kernel
2BRQB1b/K2brn2/p1pqr1n1/QN1k1B2/1b1p3Q/N2P3R/P1NQ2p1/7Q w - - 0 1 illegal: No proof kernel
2B4N/N1B1Bpn1/1Qb3p1/3RBP1Q/2pb2Pq/2B2N2/1Rrp3q/1KQrnk2 w - - 0 1 illegal: No proof kernel
1KQ1rQ2/p2R1p1B/Pb2rk2/2RRNqRn/1pb2PRN/5p1B/7N/B2qn3 w - - 0 1 illegal: Other
N7/qPBRr1B1/nN4Q1/2q2r2/NRB1N3/2pN1N2/nKP2b2/1n1k1nN1 w - - 0 1 illegal: No possible last move
q3B3/1P1n2b1/1p2NN1B/B1B3b1/1B1B1pN1/1rR1q3/P2B1RnQ/1k3K1b w - - 0 1 illegal: No proof kernel
1N1n2NR/2Q1N2K/1b2r3/1bP3PN/1kN2BrN/N2n2b1/R2Rn2q/3B1b1r w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 a5 Kf3 e5 Ke4 Ke7 f4 h5 g4 a4 b4 h4 c4 a3 g6 d6 f6+ Ke6 f5+ Kd7 g5 h3 f7 h2 c6+ Kc7 c5 a2 g7 Qd7 f6 Qh3 Ne2 Ne7 g8N Rh4+ Bf4 Nd5 Ng3 Ba6 Nh5 Be7 f8R Rg4 Kf5 e4 Kg6 e3 f7 e2 Na3 e1N Kh7 Nd3 Be2 Nc3 Rd8 Ra7 Bf3 Ne2 f8N Rb7 Qc2 Rb6 Ng6 Qh4 Rhd1 h1R Rd2 Qh2 Nh4 Bf6 Qb1 Be5 Qg1 d5 Qg3 d4 Rf8 Nec1 Bd1 Ne2 Rb1 a1B Rbb2 Bd6 Ra2 Bc3 Rd8 Ndc1 Re8 d3 Rf8 Bf6 Re8 Bd8 Rf8 Kc8 c7 Kd7 c8N Nc6 Nce7 B8c7 Rb8 Nd8 Rc8 Rc6 b6 Bb5 b7 Bb6 b8N+ Ke6 Nd7 Be5 Nef5 Kd5 Nfe7+ Kd4 Ra8 Kc3 Rb8 Bec7 Ne5 Re6 Nec4 Be5 Qg2 Bec7 Qb7 Bd6 Qc7 Be5 Rdb2 d2 Rc8 Nd3 Ra8 Bc6 b5 Bg2 Rc8 Bf1 Rc2+ Kb4 Rb8 Ba5 b6 Bd6 b7 Bb6 Rc8 Be5 b8N Bd6 Be3 Bg3 Bf4 Nec1 Bf3 d1B Rd2 Ba4 Bd1 Ne2 Nh6 Nf7 Rh8 Bb5 Nhg8 Nd8
1nR2r2/7B/q1nbq1Rn/3R4/RBbNk1Kb/2Rp1r1P/RQP3N1/1B3R2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 Kf6 b4 Ke5 b6 a5 f6 g5 c6 d5 c7 d4 f7 e6 h3 a4 b7 a3 h6 a2 b5 Bg7 f8R Qd5+ Kg4 Bd7 c8B Ne7 f4+ Ke4 h7 e5+ f5 Ng8 b6 Bc6 f6 Qa5 f7 Ba4 Nf3 Bb5 Nh4 Ra7 Bc4 d3 Bd2 Bh6 Qc1 Qa6 Bf5+ Kd4 Nc3 e4 Rc8 e3 f8R e2 Rf6 e1Q Rf1 Qe6 Rg6 Bf8 Qb2 Ne7 Ng2 Nec6 Rd8+ Bd6 Ne2+ Kc5 Rd7 Rf8 h8R Ra8 Bb3 Bc4 Rh4 Kd5 Nd4 Rf7 Bb4 Rf6 Rab1 a1N Ba2 Nb3 Ra1 Rf7 Bb1 Rf8 Kh5 g4 Ra2 g3 Be4+ Ke5 Rc7 Rf5+ Kg4 Rf3+ Bf5 Ne7 Rc6 Na5 Rc7 Nac6 Rc8 Nd7 b8R Kd5 Rb7 Ndb8 Rd7 Ke5 b7 Kd5 Ne1 g2 Rdc7 g1B Ng2 Bf2 Rd8 Nd7 b8R Ke5 Rbc8 Ndb8 Rhh8 Bh4 Ra7 Qb5 R7a4 Qa6 Rh7 Qf6 Be4 Nf5 Rhc7 Qe6 Bd5 Qe7 Bg8 Ke4 Bh7 Qe6 Rdd7 Be5 Rd5 Bd6 Rb7 Ra7 Rbb5 Rf7 Rba5 Rf8 Rac5 Bb3 Rc3 Bc4 Rg8 Qb7 Rg7 Qa6 Rg6 Nh6+
1nr5/B1Rq1N2/4b1P1/2rp3q/3n2BP/2k1B2N/1N1qBr1b/QB1RK1BB w - - 0 1 illegal: No proof kernel
1bB2k2/1B1RNq2/2bbP1Rr/1Q1R2R1/R1np1r2/N1rP2R1/1K3B2/4bnR1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qa5 c4 Qc7 c5 Qd8 e4 f5 c4 d5 h4 a5 h6 g5 b6 f4 h5 f3 e6 a4 c6 g4 e7 a3 c5 d4 c7 a2 e5 g3 b7 g2 d3 f2+ Kd2 Ra7 Kc2 Bg4 c8R Kf7 e8R Qh4 h7 Bh3 c6 Kg7 e6 Qe4 c7 Bc5 h6+ Kf6 Nf3 g1B Re7 Bg4 Be3 Qg6 Kb2 Qe8 Qb3 Bh5 Bg2 f1R Nh4 Qg6 Nf5 Bd6 Rd8 Nc6 b8R Qf7 c8B Rc7 Red7 Bf3 Qb5 Ne5 Ne7 Bh2 Bf2 Rc3 Rg1 Bc6 Na3 Bf4 Ra8 Bb8 Rd1 Bg3 Ra4 a1B+ Kb1 Bf4 Rd5 Nc4 R8d7 Bbd6 Bf3 Bb8 Rg3 Bfd6 Re1 Bb2 Ka2 Bc1 Ree5 Bd2 Reg5 Be1 Be4 Rh1 Rg1 Rh4 R5g3 Nd2 Kb2 Rf4 Rdg5 Ba8 Beb7 Nf1 Nc6 Ne7 Rd5 Re8 h8R Ng6 h7 Ne5 Ne7 Rd8 Rhg8 Nc4+ Ka2 Rf8 h8R Rh4 R8g5 Rh6 Ng6 Kg7 Ne7+ Qg6 Kb1 Rf4 Rh7+ Kf8 Rg7 Qf7 R7g6 Rfh4 Ba6 Bc6 Bab7 Rf4 Ka2 Nb6 Kb2 Nc4+
2bqb2N/1k1rR2n/1P2N3/1n2BN2/5R2/B2QB1Bb/P2BKnpr/3B1Bb1 w - - 0 1 illegal: No proof kernel
q3N2b/Pn2bQR1/1qp2N1k/N3n3/1RRb2R1/5RRb/2P3r1/BKRb1B2 w - - 0 1 legal: proof: g4 d5 h4 g5 b4 b5 e4 a5 exd5 f5 gxf5 g4 bxa5 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Be6 Qf3 Bd7 Qd1 Bc8 d4 Kf7 Kd2 Kg7 a4 h5 f4 e5 f6+ Kh7 d6 g3 a6 c6 d7 g2 f5 b4 f7 b3 a5 b2 f6 e4 g6+ Kh6 g7 h4 a7 h3 a8N h2 a6 Bb7 d5 Bd6 f8R Qe7 d8R Qd7 a7 Bc8 f7 Qe6 Nh3 g1B Nf4 Rh7 Na3 b1Q Nh5 Bgc5 Nc4 Qb6 Nc7 Be7 d6 Ba3 d7 Kg6 Ne8 Nh6 g8R+ Rg7 Qf3 Kg5 Nhf6 Ng4 Rb1 Ne5 Na5 Kh6 Bb2 e3+ Kc1 Rg2 Rg3 e2 Rfg8 e1B f8R Bac5 R8g4 Bc3 Ba1 Na6 Rbb4 Qg8 Kb1 B5d4 Qd5 Qh8 Qf7 Nc5 Rfg8 Bb2 R8g7 Nb7 Rg1 h1B Rf3 Rh2 R1g3 Bg2 Rc4 Bh3 Rb4 Rg2 Rc4 Nc5 Rb4 Ba6 Rc4 Qf8 Rb8 Nb7 d8R Qg8 Rd5 Bbc3+ Rb5 Qf8 Rbb4 Bb5 Rc5 Be2 Rc4 Bd1 Rd8 Be3 Rd3 Bed4 Rde3 Qg8 Re1 Qh8 Nd6 Qa8 Nde8 Be2 Rc1 Bd1 Qe6 Bb2 Qf7 Bdc5 Rg8 Nd3 Nd7 Bh8 Ndf6 Bd4 R8g7 Ne5
1bkq4/3r1BN1/2nb4/3Bnrb1/2p1BBRR/Np1BnP2/1P1BQ3/1B1K3R w - - 0 1 illegal: No proof kernel
4nK2/Qp4q1/N7/nBrk1BBP/2pPr1nB/1R6/1R1q1B2/BN1bN1bB w - - 0 1 illegal: No proof kernel
q2r2BB/p1n2qR1/3P2P1/1b1R2Rr/pn2BBN1/1KbQB1Bk/3N4/3B1r2 w - - 0 1 illegal: Other
r1r3RK/3bR1RB/1n2R2q/2N5/B1r1Rppk/5PrN/2PB2b1/n1QR1R2 w - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 a4 d5 axb5 e6 e3 Be7 dxc5 d4 Qf3 d3 Qe2 Bf6 Qd1 Bd4 exd4 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Ke7 Ke3 Kf6 Ke4 a5 h4 g5 b4 d2 c6 e5 c7 a4 f3 g4 d5 a3 b6 a2 b7 Be6 c8B Qf8 d6 Qh6 b5 Ra5 b6 Qg7 d7 Rh6 d8R Qf8 Bb5 Rg6 h6 Bb3 h5 Kg5 h7 f6 h8R Be6 h6 Bf7 h7 Ra4+ Rd4 Nh6 Rg8 Nd7 h8R Be6 b8R Nf5 b7 Qh6 Rh7 Rc4 Rgg7 Nb6 Ba4 Bd7 Nh3+ Kh4 Nc3 Rg5 Qg1 d1B Bd2 Be2 Rd1 a1R Qe3 Ra3 Rhf1 Rg6 Re7 Rg8 Rhg7 Ra2 Ra8 Rf8 b8R Re8 Rfe1 Bf1 Ra6 Bg2 Rf1 Rd8 Bb7 Rdc8 Bd5 Ra3 Bg8 Ra2 Bh7 Ra3 Kd3 Ra2 Rf4 Nd4 Ne4 f5 Nc5 Nb3 Re4 f4 Rba8 Na1 Rb8 Na8 Rae6 Nb6 Qg1 Rc6 Rbg8 Rc8 Rd4 Ra3+ Ke4 Ra2 Kf5 e4 Qh1 e3 Re4 e2 Qg1 e1R Qe3 Qh5+ Kf6 Qg5+ Kf7 Qh6 Qa3 Re2 Qc1 Re1 Rge8 Re2 Kg8 Re1 Kh8 Re2 Bc6 Raa8 Reg8 Re1 Rf2 Rg1 Rff1 Bh1 Bb5 Rg3 Ba4 Bg2
1N5N/KRn1PB2/1BN1n1bp/1B1bp3/2rNN1n1/3bPR2/4q1Nk/2QN2b1 w - - 0 1 legal: proof: f4 c5 h4 e5 d4 a5 dxc5 b5 a4 g5 hxg5 Bb7 axb5 Ra6 f5 Re6 fxe6 Bc8 Kd2 Ke7 Kd3 d5 b4 f5 c4 f4 g4 d4 g6 Kf6 e7 Kg5 b6 a4 b7 h6 b5 a3 c6 a2 b6 Bg7 c7 Qf8 c5 Nc6 Kc4 d3 Kb5 d2 Ka6 f3 Nh3+ Kh4 g5 Kg3 Nc3 f2 Nf4 Nf6 Rb1 a1N Ng2 Nd7 Rh3+ Kg4 Rf3 Na5 c6 Nc2 Ka7 Qg8 b8N Qf7 b7 Bf8 g7 Qe6 g8B Nc5 Bf7 Bd7 c8N Nab3 c7 Qd6 Nc6 Ne3 b8N Na6 Nd4 Nbc5 Rb7 Be6 Qe1 Qd5 Nd6 d1B c8N Qa2 Nde4 Bd5 Ncd6 Bc2 Nd1 Ne6 Ba3 Qc4 Bc5 Nac7 Bb6 Bd3 Qc3 Rg8 Qc1 Rg6 Rf5 Kh3 Rf3+ Kh2 Bg8 Qc3 Nf7 Qd2 Nh8 Ng4 Bf7 Rf6 Nec3 Rf4 Ne4 Bg7 e3 Bf6 g6 Qe2 g7 Bh4 g8N Bg3 Nbc6 Bh4 Nd2 Bg6 Nf6 Re4 Nd7 Rf4 N4b3 Rc4 Ne4 Bg3 Ndb8 Bh4 Ne1 Bg3 Nbd4 Bh4 Bg2 f1B Bh3 Bf2 Ng2 Nf6 Bg4 Bg1 Bh5 Ng4 Be8 Bf5 Bhf7 Bg6 Nd8 Qe1 Bb5 Bd3 Nd8c6 Qe2
2R2NR1/2R5/p1RRnNQr/1P4np/1N1B2q1/RbbBrP2/4KpR1/1nk5 w - - 0 1 illegal: No possible last move
B2Nn1r1/p5n1/q2R1PrB/2pB1NK1/2P2n1B/p1kN2R1/3b1BQ1/2b1BB2 w - - 0 1 illegal: Other
B1R1N3/1qNB1n1k/K1NqQB1p/2p2np1/2P2bP1/n6R/BB1B4/1b4rB w - - 1 2 legal: proof: e4 e5 d4 Ke7 dxe5 b5 f4 b4 e6 b3 e5 c6 Kd2 Na6 axb3 Qc7 b4 Nb8 b5 Qb6 Kc3 Qc5+ Kd2 Kd8 e7+ Kc7 e6 Kd6 Qe2 Qg5 Qd1 Qe5 fxe5+ Kc7 h4 a5 h5 g5 Ke2 c5 Ke1 Nh6 Nh3 Rg8 Ng1 Rg6 hxg6 Ng8 Qd5 Ra6 Qf3 Ra8 Qd1 Na6 Nc3 Nh6 Ra3 Bg7 Ne4 Bb7 Nf6 Rh8 Ne4 Nb8 Ra1 Bf8 Nc3 Bc8 Nb1 Ng8 Kd2 d5 Kd3 f5 e8B Kd8 b4 Ke7 g4 a4 b6 h6 g7 f4 b5 a3 b7 f3 b6 a2 Nc3 f2 Bb2 d4 Kc4 d3 Kb5 d2 Bg2 f1N Qe2 d1Q Bec6 Ne3 Nf3 Qg1 Rh3 Qf1 Nd5+ Kd8 Nc7 Ke7 Nd4 Qf5 Bh1 Nd7 b8B Qf1 b7 Qf3 Ka6 Nc4 c3 Na3 Rd1 Ngf6 g8B a1Q Bd5 Bg7 Nc6+ Kf8 Ba2 Nd5 c4 Bf6 e7+ Kg7 e8B Ne7 e6 Ne5 Bd7 Nf5 e7 Nf7 Qe6 Be5 Rd3 Qad1 e8N+ Kf8 Bh7 Bf4 Bg6 Kg8 Rd6 Ng3 Be4 Nf5 Ne7+ Kh7 Na8 Rf8 Bc7 Ne5 Bb5 Bc1 Rc6 Be3 Bd8 Qd6 Qd7 Bd2 Bd5 Nd4 Ba5 Be1 Bd2 Bg3 Qf5+ Ng6 Qf6 Bf5 Qe6 Nh8 b8B Qc7 Ba4 Bb1 Bb5 Qd7 Be5 Qd6 Be4+ Rf5 Bf6 Nf7 Bd5 Qb3 Ba4 Rf1 Bdg2 Qe5 Rc8 Rg1 Nac7 Nf5 Ba8 Bf4 Bd7 Qd6+ Nc6 Qb7+
Kq3b1r/3NQrb1/BpBpN1B1/4B1RR/n4B2/pPp1BqN1/1kP5/4B3 w - - 1 2 legal: proof: g4 e5 h4 f5 gxf5 g5 a4 g4 d4 b6 dxe5 Bb7 a5 Nc6 a6 Nd4 axb7 Ne6 Bg5 Bd6 Bc1 Ng5 hxg5 Bf8 Kd2 Ke7 Ke3 h5 Ke4 a5 Kd5 c5 b8B c4 f4 g3 e4 h4 g6 g2 e6 Kf6 e5+ Ke7 b3 h3 f6+ Ke8 e7 h2 g7 Kf7 e6+ Kg6 e8B+ Kf5 e7 a4 f7 a3 Nf3 g1B Ng5 Ra4 Be3 Rh4 Nd2 Ra6 Be5 Rh6 Nde4 Rh4 Qe2 Rh7 Ng3+ Kg6 f5+ Kh6 f6 Kg6 Ne6 Nh6 g8N Ra7 Rb1 Bg7 f8B+ Nf7 Qe1 Qc7 Be2 Bh8 Bfh6 Bg7 Bhf4 Rh8 Qb4 Bf2 Rbg1 c3 Ba6 d6 Bc6 Ng5 f7 Ne4 f8B Nc5 Nf6 Na4 Nd7 Be1 Bf2 Bd2 Be1 Be3 Qc4 Bd4 Be3 Bh6 B5f4 Bdg7 Qe2 Rb7 Ne4+ Kf5 e8B Ra7 Be7 Bf8 Bf6 Bhg7 B6e5 Rb7 Qf2 Ra7 Ng3+ Kg4 Qd2 Kf3 Qd3 Rb7 Qh7 Ra7 Rg2 Rb7 Bg6 Ra7 Rhg1 h1Q Rh2 Qg2 Rh5 Qf2 Nh1 Rb7 Rgg5 Ra7 Bc8 Ke2 Ng3+ Kd1 Ba6 Qf3+ Kc4 Bf6 Qe7 B6g7 Kb5 Ra8 Bab7 Rd8 Ka6 Re8 Qf6 Re7 Ka7 Rf7 Ka8 Qe2 Rh2 Qf1 Ba6 Qf3 Rd2+ Kc1 Rh2+ Kb1 Rhh5 Kb2 Qe7 Qb8+
1N3kb1/q1B1nB2/3Rpn2/4qRBB/K3PrR1/npN3B1/1P1bb2B/2r2B1Q w - - 0 1 illegal: No proof kernel
3B1Rn1/k3PpN1/7B/1br1qP2/3NR1Q1/NB3QQK/1r1q1NrR/2b5 w - - 0 1 legal: proof: d4 c5 a4 a5 g4 h5 gxh5 e5 dxe5 b5 axb5 a4 b4 a3 bxc5 Qg5 b6 Nf6 Rxa3 Na6 b7 Ng8 Rxa6 Qf6 Ra1 Qd8 b8Q d5 f4 Kd7 Kf2 Kc6 Kg3 g5 c4 g4 h4 d4 e4 d3 h6 d2 h7 Bf5 h5 Ra5 h6 Bd7 e6 Qc7 e7 Qd6 e8N Qf6 e5 Rb5 e6 Be7 Nh3 Qg7 Nf2 Qd4 Rh2 Rb6 Na3 Qe5 Qf3+ Qe4 Ng7 d1Q Rb1 Qa4 Rb4 Nf6 f5 Re8 h8Q Qc2 h7 Rb5 Bh6 Nd5 Qg8 Qc1 h8B Rc8 Qbf4 Kb7 c6+ Kb6 c7 Qce1 c5+ Ka7 c6 Kb6 Bc4 Qe5 Bb3 Qf1 Re4 Bg5 e7 Rb8 c8R Qe1 c7 Qd2 Rf8 Nf6 c8N+ Ka6 Nd6 Rc5 Kg2 g3 Kh3 g2 Q4g3 g1R Ndb5 Rg2 Nd4 Rb7 Ne8 Bf4 Q8g4 Ng8 Bf6 Rb8 Ng7 Ka7 Bh4 Be3 B4g5 Bb5 Bf4 Qd5 Bc7 Qe5 Ba5 Qc3 Ndc2 Be8 Ba4 Rb2 Bb3 Bc1 Bd8 Qd2 Nd4 Bb5
5rN1/2RK3n/P2R1Q2/nn5Q/Nb1p4/2qkBBnP/6Q1/BNR1R1q1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 c5 d4 b5 dxc5 f4 a4 f3 e4 Rh7 a6 Rh6 a5 Bb7 a7 Bc6 Qxf3 Bd5 a6 Be6 Qe2 Bf5 exf5 Nc6 Qg4 Rc8 Qe2 Nb8 Qd3 Rcc6 Qd4 Rcd6 Qxd6 Rh7 Qd1 Rh8 Kd2 Kf7 Kd3 Kf6 Kd4 g5 Kd5 e5 a8Q g4 f4 g3 c4 d6 c6 e4 h6 b4 h3 g2 c5 b3 c7 e3 c8N b2 c6 e2 c7 e1N h7 Bg7 Be3 Qd7 Be2 Qa4 Bf3 Qe8 Ne2 g1Q Nec3 Qg2 Na4 Qd8 Ne7 Bf8 c8R Nh6 Rc7 Qc8 Rf1 Rg8 h8B+ Qg7 Qe2 Nc6 Qb7 Na5 Qbb5 Nb7 Kc6 d5 Qg2 Na5+ Kd6 Ng4 Qc5 Nc2 Rc1 Nd4 Re1 Ne2 Rc1 Qa8 Kd7 Qa7 Re1 Ng3 Rc1 Kf7 f6 Qb6 f5 Qb3 Qd4 Qc3 Qd1 Qg6 Bg7 Rh8 Ng8 Bb4 Nd2 b1N Qde2 Na3 Nb1 Nb5 Qd1 Rh7 Bh8 Kf8+ f7 Rh6 Bf6 Qg5 Be5 Rf6 Qde2 Kg7 f8R Kh7 Rd8 Rf8 f6 Kg6 f7 Kf5 Bf6 Qc5 Bb2 d4 Re1 Qc3 Rc1 Re8 f8Q+ Ke5 Qh6 Rf8 Qh5 Kf5 Qef2 Nf6+ Kc8 Rf7 Rd6 Nh7 Re1 Rf8+ Kd7 Nb7 Ra3 Na5 Ba1 Qd2 Rac3 Qb2 Rcc1 Qc3 Be2+ Ke5 Qgf1 Ke4 Qf6 Qg6 Q1f2 Qg5 Bf3+ Kd3 Qg2 Nf5 Qh1 Qg1 Qg2 Ng3
1R1b1nr1/3R1P2/3K1Qn1/2Q1n2R/1R1N2B1/B1Q2pP1/1n1n1b2/N3BNk1 w - - 0 1 legal: proof: c4 a5 b4 g5 a4 b5 axb5 d5 cxd5 a4 h4 Qd6 hxg5 Qg6 Rh4 Qb6 Rh1 Qa5 bxa5 Bd7 Rh5 Bg4 Rh1 Bc8 e4 e5 b6 f5 f3 f4 Na3 Bf5 exf5 e4 Nb1 e3 Rh2 Bc5 Rh3 Bf8 Rh1 Nc6 Rh6 Rd8 Rh3 Nb8 Rh1 Rd6 Rh6 Re6 Rh1 Re4 fxe4 Kd7 Nc3 Ke7 Nb1 Ke8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g3 f3 f6 h4 g6 e2 g7 e1N a6 h3 b7 h2 a7 c6 a8R a3 e5+ Kd7 e6+ Kd6 f7 a2 e7 Nd3 e8Q Rh7 Qde1 Nf6 g8Q Nh5 Q8e6+ Kc7 d6+ Kb6 d7 Nf2 Ke5 Kc5 d8B Ng7 Qf6 Nh3 Ra7 Ne6 Ne2 Be7 Qgg5 Nhf4 Ba5 Rg7 Bh3 Nf8 Bg4 Rg8 d4+ Kc4 d5 Kd3 d6 c5 d7 c4 d8N c3 Bb4 c2 Nc6 Bd8 Bca3 Ke3 Na5 c1N Nd2 Nd3+ Kd6 Nbd7 Rb1 a1B b8R Bd4 Qc5 N4g6 Nab3 N7e5 Qec1 Kf2 Na1 Kg2 Rd7 Bf2 Rb3 Nb2 Nd4 Ba5 Bc3 Bd8 R3b4 Be1 Rf1 h1N Qc2 Nf2 Rh1 Rg7 Rh7 Rg8 Nf1 Kg1 Rh5 Ne4+ Kd5 Ng5 Kd6 Bf2 Be1 Ne4+ Kd5 Rg7 Q2c3 Nd2 Kd6 Rg8
b1N2r2/1RP1B1RB/n1Nn3b/4R1Q1/Q3RpQ1/p1pP4/1B1k1K2/2b1N3 w - - 0 1 legal: proof: b4 b5 f4 d5 g4 c5 a4 e5 axb5 h5 gxh5 a5 fxe5 a4 c4 Ra5 cxd5 Qc7 bxa5 Qc6 bxc6 Kd8 Kf2 Ke7 Ke1 Ke8 e4 Ke7 h4 f5 d6+ Ke6 d7 g5 d8N+ Ke7 a6 g4 c7 f4 e6 Kf6 a7 Ke5 a8Q Kd4 h6 c4 h5 a3 e5 c3 h7 g3 h6 g2 e7 Bg4 e8R Bb4 e6 Bc5 e7 Bd7 Qaa4+ Bb4 Qg4 Nf6 Bb2 Ng8 Kf2 Bc6 Bd3 Bb7 Nc6+ Kd5 Nf3 Ba6 Rg1 Ba5 Ne1 Bc8 Be4+ Kc5 d3 Be6 Nd2 Bb6 Nc4 Bf5 Rb1 Na6 Nd6 Nf6 Nc8 Rf8 h8Q Ba5 h7 Bb4 Qhg8 Be6 h8B Bd5 Nd8 Kd4 Q8g5 Ba8 Bg7 Bd5 Bh7 Ba8 Bh6 Ne4+ Ke2 Nd6 Kf2 Rh8 Bf8 Rg8 Rh1 Rh8 Rh6 Rg8 Rg6 Rh8 Rg7 g1B+ Kf1 Ke3 Nc6 Kd2 Kg2 Bh2 Kf2 Rg8 Rd8 Rh8 e8R Rg8 Re5 Bg1+ Kg2 Bgc5 Be7 Rf8 Re8 Bg1 Ba1 Bbc5 Rb7 Bgf2 Bb2 Bh4 Qf6 Bg5 Re4 Bh6 Qfg5 Bb4 Kf2 Ba5 Bd8 Bb4 R8e5 Bc5+ Kf1 Bg1 Be7 Be3 Ba1 Kc1 Bb2+ Kb1 Ng2 Bd2 Kf2 Bc1 Qd4 Kc2 Ne1+ Kd2 Qc4 Nb8 Qa4 Na6
n2n4/B1N3bQ/1RqkB1K1/4bQP1/3P2r1/2r2Nb1/R2b1Q2/2BBNb1R w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Rh8 g5 Qd6 g7 Ra8 Bg2 Qg6 hxg6 Ng8 Bf1 Nb8 Ke2 Kd7 Ke3 e5 Ke4 c5 b4 a5 d6 h5 f6 a4 Kf5 c4 b6 a3 f7 a2 b5 e4 b7 e3 b6 e2 Qe1 h4 Na3 c3 Qf2 e1B Be2 h3 Bd1 h2 Nc2 Na6 b8R Nc7 b7 Rh3 Nf3 Ra4 d3 Bd2 Nce1 Nh6+ Kf6 c2 g8Q Rah4 g7 Rg4 Qh7 Na8 g8B Bg7+ Kg6 Rhg3 f8Q Nf7 Qh3 Nd8 Qh7 Kc6 d7 Bf4 Qf7 Kd6 Qf5 Rh3 Be6 Bg3 Rb1 a1B Rb2 B7e5 Ra2 Bad4 Bf7 Bg7 Be6 Bdf6 d4 Bfe5 Bd2 c1B Be3 Nc6 d8N Bd2 Bf4 Ba5 Bc1 Bd2 Beb3 Bd7 Ne6 Nd8 Nc7 Bb5 Be6 Bc4 Rc8 Bf1 b8B Bef6 Ba7 Bfe5 Rg1 h1Q Rb8 Qh2 Rh1 Qg2 Nh4 Qc6 Nhf3 Bh2 Rb6 Rhg3 Ng1 Rc3 Ngf3 Bhg3
B3N2N/1R1Qb2q/k3PnB1/r1qn2KN/qB4q1/2b1P2Q/1Q2Rr2/Q2R4 w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 b5 g4 f5 a4 e5 fxe5 Nh6 axb5 Be6 h3 Bf7 Rh2 Ng8 Rh1 Bh5 gxf5 g4 Ra4 g3 Ra1 Bg4 hxg4 Bc5 Bg2 Bb4 Bf1 Bf8 b4 Kd7 d4 Kc8 Kd2 Kb7 Ke3 a5 Kf4 h5 d6 c5 d7 a4 e6 a3 e3 c4 d5 c3 b6 a2 f6 h4 g5 g2 g6 h3 g7 h2 f7 c2 b5 Nh6 g8B Ra5 d6 Qc7 d8N+ Ka8 b7+ Ka7 Ne2 g1B b6+ Ka6 Na3 Qc3 d7 Rd5 Bg2 Qa5 Nc4 Qa4 Ba3 c1Q Bb4 Qa5 Ng3 Rh7 Nd6 Nf5 Kg5 Bf2 Nh5 Bg1 Ne8 Bc5 f8Q Rh8 Qh6 Qc4 Bh7 Rf8 Nf7 Bf2 d8Q Be1 Qd7 Bc3 Re1 h1Q Nh8 Ne7+ Bf5 Bd6 Re2 Qac5 Qf1 Re5 Rd1 a1Q Qf6 Nd5 Qf3 Q4d4 Qh3 Qa4 Qfg7 Nc6 b8R Nf6 b7 Ne7 Be4 Ned5 Bf3 Re4 Bg6 Rf4 Bfe4 Rf2 Bg2 Ng4 Qe5 Ngf6 B2e4 Qdc4 Qd4 Be7 Qe5 Bd2 Qa1 Bc3 Kh6 Nh7 Ba5 Qc7 Ng3 Nf4 Qh4 Nf6 Kg5 Rf7 Qg4 Qh7 Nh5 Qb6 Qh3 Ng8+ Kg4 Rf6 Kg5 Qa7 Rd8 Qcd4 b8Q Qdb4 Ba8 Rf5+ Kg4 Qbd4 Qbb2 Nf6+ Kh4 Qdc4 Bb4 Ra5 Rb8 N4d5+ Kg5 Qac5 Rb7 Qg4+
2B1b2B/3rq2N/PQ1R2r1/bqRN1nn1/1N5Q/kNnR1nK1/4PB2/4Q3 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Na6 cxd3 Bc5 d4 Bf8 d5 Nb8 Kf2 Kd7 d4 g5 h4 f5 h6 c5 e6+ Kd6 a6 c4 h5 f4 h7 f3 e7 g4 e8N+ Ke7 d6+ Ke6 h6 Kd5 b6 c3 d7 Kc4 b7 Kb4 d5 c2 d6 Nc6 b8Q+ Bb7 Ra5 Be7 Qe1+ Kb3 Nf6 Ra7 Nc3 Nd4 Rc5 Ne6 Ncd5 Ng5 Kg3 f2 Bh3 f1Q Be3 c1N Nf3 Na2 Nd4+ Ka3 Bf2 Bc6 Nb3 Nc3 Qb6 Qe8 d8R Rd7 Rh2 Bf8 Rg2 Ne7 Rh2 Rg8 h8Q Qh1 Nh7 Qe4 Qf6 Rg6 Rh1 Nf3 Qh4 Ng5 Rf1 Ra7 d7 Nf5+ Kh2 Q4e6 Rg1 Rc7 Rg3 Q6e7 Rd3 g3+ Kg2 Nge4 Kf3 g2 Kf4 Ng5 Kg4 Ne3+ Kg3 g1N Nhf6 Bg7 h7 Na2 h8B N1f3 Nh7 Bc3 Rc8 Bb4 d8N Nc3 Bf5 Bb5 Nc6 Ba5 Rd8 Ba4 Bc8 Nf5+ Kg2 Q8d7 Ncb4 Qc6 Rd6 Qb7 Qa7 Be8 Qb8 Qb5 Qb6 Nf7+ Kh3 N7g5+ Kg4 Rd7 Kf4 Ng7 Kg3 Nf5+
2kq2Qb/R4KN1/1PN2bQ1/2rn3R/b3qB2/r2P1QRb/2B3N1/qBN5 w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Kf2 Kd7 Kg3 c5 Kf4 a5 Ke5 h5 b4 e6 d6 c4 f6 a4 b6 a3 b7 c3 b8R c2 f7 h4 b5 a2 b6 h3 Ne2 h2 Nf4 Be7 f8N+ Kc6 d7 Nf6 g8Q Bb4 g7 Ba3 g6 Ne8 Qf3+ Kc5 Bd3 Nc7 Nc3 Bb2 Ng2 Ra3 Ra8 Nd5 Ra7 Kc6 Qh7 Ra6 g8B Ra3 Qh6 Rh7 g7 Rh8 Qg6 Rh5+ Bf5 Rg5 Rb1 a1B Bh7 Rh5 Rg1 h1B g8Q Rg5 Ne1 Rh5 Rg3 Rg5 Ng2 Rh5 Ra5 Kb7 Ra7+ Kb8 Kd6 e5 Ke6 e4 Ne2 e3 Kf7 Bh8 Ne6 Baf6 Rb5 Rg5 Ng7 Rh5 Nef4 e2 Nd3 e1Q Rba5 Qe4 Rc5 Qc7 Rb5 Qd6 d8N Bd7 Rba5 Kc8 Rc5+ Qc7 Nc6+ Qd8 Be6 Ne3 Ba2 Bh3 Bb1 Re5 Rb5 Rc5 Rba5 Rc4 Rh5 Rc5 Bb2 c1Q Be5 Qc3 Bf4 Qa1 Nc1 Nd5 Qg5 Qee5 Bhc2 Qe2 d3 Qe4 Ne1 B1g2 Qh6 Bd7 Qg6 Bgh3 Ng2 Qad4 Na5 Ba4 Nc6 Qa1
2r3rr/1kBq1B2/2R5/2Q3bN/QBBP1b2/P2bQ1r1/1Rb1R1K1/1N3n1N w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 Be6 h4 Nf6 g4 Qd7 h5 Ng8 g6 Nc6 g5 Ne5 g7 Ng6 hxg6 Qd8 Rh5 Bd7 Rh1 Bc8 Kf2 Kd7 d4 b5 a3 c5 f6 Kc7 f7 h5 d6+ Kb7 d7 e5 Bd2 c4 Qc1 e4 Bb4 h4 Kg2 e3 Nh3 e2 Ra2 e1B Re2 c3 Rh2 c2 Qe3 c1R Nf2 Nh6 g8N Bd2 g7 Bd6 f8Q Nf5 g6 Ng3 Nh1 Bf4 Qc5 Rc2 Nf6 h3+ Kg1 Rg8 Nh5 Rc3 Kf2 Qc7 d8B Qd7 Bc7 Rd3 Rg2 h2 Kf3 Bc1 Rgf2 Bg5 Kg2 Rb3 Rb2 Rd3 Be2 Nf1 Rf6 Rc3 Rc6 Rb3 Bc4 Bd2 Nf2 h1R Bf7 Rh3 Nh1 Rc3 Bc4 Rh8 g8R Rg3+ Kf2 Rc1 g7 Bf4 Re8 Rg8 Bc3 b4 Re5 b3 Bb4 Rh8 g8B Rc3 Bgf7 Rgg8 Qe1 Rcg3 Re2 Bg5 Qc1 Bdf4 Qe3 Rb8 Rbd2 b2 a6+ Ka8 a7 Ba6 Rc2 Kb7 Rcd2 Bb5 Rc2 Ba4 Rcd2 Bc2 a8Q+ Kc8 Qa4 Kb7 Bba5 Rbc8 Bb4 Rf3+ Kg2 Bd3 Nc3 b1B Rb2 Bbc2 Nb1 Rg3+
2B4N/q1rN1NB1/nP1K2R1/knBN4/1n2r1b1/8/1Prn1R2/r2Q1QRQ w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Qh5 Kd7 Ke2 c5 Kd3 Kc7 Ke4 Kb6 Ke5 a5 d4 a4 d6 c4 f6 a3 d7 a2 f7 h6 f8B c3 d5 c2 d6 Ra5 Bh3 Ne7 g8R Nd5 g7 Ra3 g6 Qe7 d8Q+ Qc7 Rh2 Ra7 Ne2 Na6 Nbc3 Ka5 b6 Ndb4 Be3 c1N Nf4 Ne2 Bc5 Nd4 Rg1 a1R Rhg2 Qb7 d7 Nb5 Qf6 Qa8 d8Q Rc7 Qdd1 Qa7 Ncd5 Bd7 Qhf3 h5 Qh4 Rh6 Qff1 Bc8 Bf5 Rh8 Qh2 h4 Rd2 h3 Bg4 Na3 Kd6 Rh4 Qhg2 h2 Bf5 h1N Rf2 Ng3 Qh1 e5 Bg4 Bf5 Bh3 Bd3 Bc8 e4 Rh8 Qb8 g8N e3 g7 e2 Ng6 Rc4 Ngf6 e1R g8N Bf5 Nd7 Qa7 Rh6 Bg4 Nh8 Rc2 Rg6 Re3 Bg7 Ne4+ Ke7 Nd2+ Kd6 Re1 Nh6 Re4 N6f7 Nb5+
3B3k/bN1Bq2q/bb5R/n6Q/2NKR3/B2bPQ2/1RPnbQ2/5qQN w - - 0 1 illegal: No possible last move
4rnQq/P1BRR3/qpr5/2rP1KN1/4NR2/nN1B1B1Q/k2b4/1bQ2B2 w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 d5 cxd5 c5 bxa5 c4 d4 c3 g4 c2 gxh5 Rh7 Bd2 c1Q Be3 Qc2 Bc1 Qc5 dxc5 Rh8 Ke2 Kd7 Ke3 e5 Ke4 g5 f4 b6 h4 g4 a4 g3 c6+ Kd6 h6 Kc5 c7 Kb4 a6 g2 h7 Nc6 a7 Bc5 a5 Bf8 h5 Be6 c8B Qh4 a6 Bh6 f6 Nge7 f7 Qe1+ Ne2 g1Q f8R Ng8 f5 Be3 f6 Bd2 f7 Nh6 Nc3 Ng8 h6 Bh3 Bg4 Qh2 Kf5 e4 Nd4 e3 Ne4 e2 Nb3 Bc3 Bf4 Bb2 Bc7 Nf6 Qc1 Re8 a8B Bc3 a7 Nd7 Bb7 Nce5 Ba6 Bd2 Bd3 Nc4 Ra2 Rg8 h8N Rg6 h7 Rc6 Rc2 Bg2 Bf3 Na3 Rg1 Bh1 Rg7 Qeh4 Ra2 e1R Rb2 Rc8 Rd8 Nf8 Rd7 Qd6 Rg4 Qc5 Rf4 Qa5 Rc2 Qa6 Re7 Ng6 f8Q Bg2 Qg8 Nf8 Nf7 Rc5 Bb8 R8c6 h8Q Ka4 Qc3 Qh8 Bc7 Re2 Nfg5 Re1 Bh5 Bf3 Rd7 Bd1 Ra2 Bc2 Bf3 Bb1 Rb2 Be3 Rh2 Bd2 Rhh7 Re2 Rhe7 Re1 Qcg7 Re2 Qh6 Kb4 Na5 Ka4 Qh3 Kb4 Nc4 Kb3 Na5+ Ka2 Nb3 Qa5 Ng3 Ree6 N3e4 Qa6 Rh7 Re8 Rhf7 Qb7 Rfe7 Qa6
R2n1R1B/q4qqk/N2Q1r2/1B1b4/QN2N3/r3bKp1/P3P1Qb/1RB2R2 w - - 0 1 illegal: No possible last move
2QQN2k/nb1Nqb1r/4B2R/bP3qBp/1R4Q1/P3Nn1K/2Q5/2B2qR1 w - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 d5 c4 f5 cxd5 Kd7 exf5 Ke8 Bc4 b5 Bd3 a4 Bf1 a3 bxa3 b4 Bd3 b3 Bc4 b2 Bf1 Ra5 Rh3 Rb5 Rh1 Rb3 axb3 Bg7 Nh3 Bh6 Ng1 Bf8 f4 Kf7 Kf2 Kg7 Kg3 e5 d4 c5 d6 c4 d7 e4 f6+ Kf7 f5 h6 b4 e3 b5 c3 d5 e2 d6 e1Q+ Kh3 c2 g4 Qde8 d8B Q1e3+ Nf3 Bb7 d7 Q8e4 Nc3 b1B Bc4+ Qe6 Nd5 Bd6 g6+ Kf8 f7 Kg7 f8R Q6e5 g5 Qe2 Ne3 Nc6 Be6 Qc3 Ne5 Rh7 f6+ Kh8 f7 Qa5 Rg1 Ba2 Rb1 h5 Rb4 Rh6 g7+ Kh7 Qd2 Nf6 g8N Qa6 g6+ Kh8 Be7 Qe1 d8Q Nd7 Bg5 Bc7 Qe2 Ba5 g7+ Kh7 Re8 Na7 f8Q Qd6 Qg4 Qe7 Qf2 Qf1+ Qfg2 Qf5 Qf2 Nc5 Nd7 Nd3 Qg2 Ne1 Ngf6+ Kg6 Rf8 Rh7 Ne8 Nf3 Rh8 Bc4 Bb2 c1Q g8Q+ Qg7 Qf8 Qf1 Bc1 Bcd5 Qc5 Qe7 Qcc8 Rh6 Rf8 Kh7 Rf6 Kh8 Rg6 Rh7 Rh6 Qe1 Bg8 Bf7 Qgc2 Bg6 Ba2 Bf7 Be6 Qf1+
3Q1rRQ/q4Q2/2QBP2q/5nKR/rP3pRr/n1N1N1bk/1nBB4/N7 w - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 b5 cxd5 b4 a3 Bg4 axb4 Bc8 g4 a5 b3 h5 gxh5 a4 Bg2 a3 Bh3 Bd7 Bf1 Ba4 bxa4 Qd7 Bh3 Qe7 Bf1 Qd8 Kf2 Ke7 Ke3 c5 Kf4 f5 e4 g6 d4 c4 h4 c3 d6+ Ke6 h6 a2 d5+ Kf7 a5 c2 h7 Nc6 h5 Qd7 h6 Nf6 a6 Re8 a7 Bg7 a8N Rhf8 h8R Ng8 h7 Nce7 e6+ Kf6 Nc7 Qb5 d7 Qd3 d8Q Qe2 d6 Nh6 d7 Nf7 Nd2 Qd3 Qh5 Ne5 Rg8 Nc4 h8Q Na3 Nb3 Qh3 Be3 c1N Bd2 Qd3 Rb1 a1R Ne2 Qh3 Qf3 Qh7 Nc3 Ra2 Rh5 g5+ Ke3 g4 Kf4 g3 e5+ Kg6 Na1 g2 Bd3 g1Q Qc6 Qa7 Bc2 Nd3+ Kg3 f4+ Kg4 Nf5 N7d5 Re7 Ne3 Nb2 Rg1 Ref7 e7+ Rf6 Qcc7 Ra6 e6 Ra4 Qb6 Kf6 e8Q+ Ke5 Nb3 Bf6 Qf7 Ra1 Rg3 Rh1 Na1 Rh2 Qc6 Rh3 Rg7 Bh4 Rg1 Bf2 Kg5 Rh4 Rg4 Be1 Qdb6 Bg3 d8B Nac4 Be7 Na3 Qd8 Qd4 Ncd5 Qa7 Bd1 Ke4 Bc2+ Kf3 Nc3+ Kf2 Rg6 Kg1 Bd6 Kh2 Rg7 Kh3 Rg8 Qh6+
R2n1k2/R3qPq1/1BN2Br1/bN1P3Q/rR3n1Q/1n1N1q2/3K2pQ/2N2B2 w - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b6 h5 gxh5 a5 b3 a4 Bc4 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Ra5 Qf3 Ra6 Qd1 Ra8 f4 e5 h4 g5 d4 c5 b7 a2 d6 c4 d7+ Kf7 d5 c3 h6 e4 h5 c2 h7 e3 f6 g4 f5 e2 h6 g3 a5 g2 a6 Qc8 d8Q Qc7 a7 Qd6 Rh4 Qe5 Be3 c1Q Nc3 Bb4 Bb6 Bd6 Rb4 Na6 b8N Qcf4 Nc6 Qed4 Nb5 Rb8 a8R Qf3 Qc7+ Kf8 f7 Qf6 Kd2 e1N Ne2 Nc5 Nc1 Ne7 Qe2 Rg8 h8B Ned3 h7 Qe5 Bf6 Nf4 h8Q Re8 Ra7 Ra8 Qh4 Rg6 Qd1 Qb3 Qdh5 Qf3 Qd7 Bc7 Qd6 Qe6 Qe5 Ne2 Qeh2 Nf4 Rab1 a1Q Rba4 Nc8 Rbb4 Nd6 R4a5 Rc8 Ra8 Qe7 R5a7 Ndb7 Bg5 Kg7 f8N Nd8 f6+ Kg8 Nd7 Nb3+ Kc2 Kf7 Nde5+ Kf8 f7 Rb8 Ned3 Qg7 Bf6 Rb7 Bc5 Rb6 Kc3 Ra6 Bb6 Ra2 Bbd4 Ba5 Bb6 Ra4 Kc2 Nd4+ Kd2 Nb3+
3rR2Q/1k2pb2/2qnP2Q/5RB1/q1NN1P1n/1Bn2RNQ/1R2b2b/2KB4 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 c4 d5 cxd5 b5 a4 f4 axb5 f3 gxf3 g4 f4 Ra6 f5 Rh6 Bb2 Rg6 Bc1 Rg5 hxg5 Qd7 Ba3 Qd6 Bc1 Qd8 e4 Kd7 d4 h5 Kd2 c5 a6 Kc7 g6 h4 d6+ Kb6 a7 c4 a8Q g3 d7 g2 e5 h3 g7 h2 d5 Qc7 d8N Qb7 d6 Be6 d7 Qe4 f6 Qf5 f7 Nf6 g8B Nh5 Ne2 g1N Ng3 Qe4 Be2 Bg7 f8Q Qg4 Qb3 Kc7 Nc6 Bf6 d8R Nd7 Ra5 Nc5 Nd4 Bf7 Re8 Nf4 Na3 Ng6 Qh6 Nb7 Bd1 Ne2 Rf1 h1B f3 Nc3 b6+ Kd7 Kc2 Nh4 Bg5 Nd6 b7 Kc7 b8R Qd7 Rb6 Qa4 Kc1 Bg2 Rf2 Bf1 f4 Be2 Rf3 Bg7 Bh7 Rf8 e6 Bh8 Nc6 Bd4 Bhc2 Bg1 Nd4 Bh2 Rf5 Rg8 Qb1 Rh8 Rb2 Rf8 Bb3 Kb6 Qa5+ Kb7 Qe5 Rg8 Qeh8 Rf8 Ra8 Rd8 Qa1 Nb1 Q8h7 c3 Nc4 c2 Qa3 Nc3 Qh8 Rd7 Re8 Rd8 Qb4+ Ncb5 Qe1 Nc3 Qf1 Nce4 Qh3 Nc3 Kd2 c1Q+ Ke1 Qb1 Kd2 Qe4 Kc1 Qec6
1NQ5/1b1Q1n2/1kBRB2N/1p1bBR2/q3QP2/P1rR3Q/6Nb/bb2r2K w - - 0 1 legal: proof: c4 a5 h4 g5 hxg5 f5 f4 d5 cxd5 e5 b4 Nc6 bxa5 Nd4 fxe5 f4 e3 f3 Nc3 Ne2 Nb1 Nf4 exf4 Bd6 Qc2 Bb4 Qd1 Bf8 Kf2 Kd7 d4 c5 g4 Kc7 e6 b5 e7 h5 e8B h4 a3 h3 g6 c4 g7 c3 a6 h2 a7 c2 d6+ Kb7 g5 Bg4 d7 Kc6 d5+ Kb7 g6 Qc7 d8Q Qf7 d6 Qc7 d7 Bb4 Qh4 Rd8 a8Q+ Kb6 Qe4 Ka5 Nc3 Rb8 d8R Qf7 Bh3 Kb6 Na2 Qe6 Rd3 Ka7 Bc6 Kb6 Bb2 c1B Be5 Bc3 Nb4 Qb3 Na6 Bc8 Be6 Bb7 Qh3 Rc8 Nb8 Nh6 g8N Nf7 g7 Qa4 Nh6 Rhe8 g8Q Be3+ Kf1 f2 Kg2 Re7 Nf3 Ree8 Rc1 Ba1 Rc5 Rc7 Re1 f1B+ Kh1 Bg1 Nh4 Ree7 Rd6 Bd3 Qc8 Bb1 Re3 Re8 Bf6 Ree7 Rf5 Re8 Be5 Ree7 Kg2 Re8 Red3 h1B+ Kf1 Bf3 Ng2 Bh2 Qd2 Bg3 Kg1 Bh2+ Kh1 Ree7 Qee2 Bd5 Qe4 Red7 Rb3 Ba6 Bb7+ Bc6 Rd4 Rd5 Rf3 Rc5 Qdd3 Rc2 Rd5 Re2 Rd7 Re3 Qd6 Re2 Rd3 Re3 Qe7 Bd5 Qee8 Rc2 Bc6 Rc3 Rd6 Bb7 Qed7 Re1+
1r3B2/1PNr1n1B/3qq1Q1/QR3Q1P/5nBR/N3r2K/1rp1n1BR/kN6 w - - 0 1 illegal: No possible last move
5qB1/6rR/RrB3NB/PR3Q1r/NBn1K3/1pP3kn/n2Qn3/N1Q4r w - - 0 1 legal: proof: f4 g5 d4 f5 b4 a5 bxa5 c5 dxc5 g4 e4 b6 exf5 Kf7 h3 Ke8 f6 Bh6 g3 Bb7 f5 Bf4 gxf4 g3 Qd2 Bf3 Qd1 Bg4 hxg4 Kf8 Bd2 Kf7 Bc1 Ke8 Ke2 Kf7 Kd3 e5 a4 d5 g5 h5 g6+ Ke8 g7 Kd7 a6 b5 f7 g2 f8Q b4 a5 d4 f6 Ke6 a7 Kf5 f7 h4 c6 h3 c7 h2 c8Q+ Nd7 Na3 Nh6 g8B Rb8 a8R Ng4 Rb1 Rh5 Ra6 Rb6 Ne2 g1N Nc3 Ne2 Bg2 Qe7 Bc6 e4+ Kc4 d3 Kd5 d2 Na4 e3 c3 Qf6 Nc2 Nf2 Qcd8 Kg4+ f5 Kg3 Na1 Nh3 Ke4 Ne5 Ba3 Nd3 Qc1 d1N Qd4 Qg7 f6 N1b2 Qfc5 Nc4 f8N Qh6 f7 Qd6 Ng6 Qf8 Qf5 b3 Bb4 Neg1 Rb2 e2 Rd2 e1R+ Re2 Rf1 Qde3+ Rf3 Qed2 Rf2 Re1 Ne2 Ref1 Rg2 Rf4 Qa8 f8B Rg1 Bh6 Qf8 Qd7 Rg2 Rf5 Rg1 Rb5 Rg2 Rf1 h1R Rf7 Rgg1 Qf5 Rg2 Ba3 Nb4 Rh7 Na2 Bb4 Kh2 Ne7 Rg7 Ng6 Kg3
1K1R3R/2qR4/B3qNQ1/b2N4/2r1RpPB/n2b4/P1QpN2r/Q2n2Bk w - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 Nh6 bxa5 Ng8 f3 Nc6 f4 Nb8 h4 g5 hxg5 e5 fxe5 b6 axb6 Be7 Bd2 Bd6 Bc1 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 Kg4 c4 Kg3 e4 f5 c6 h5 b7 h4 c5 h3 g6 h2 c7 d6 g7 Kf2 g4 Bd7 c8Q Ra6 e6 Qa5 e5 Qd8 e7 Rh7 e8N Rh4 c6 Qf6 c7 Qf7+ e6 Nh6 g8Q Ra4 Ne2 Na6 b8B Rc4 Nbc3 Bb5 Bg5 f4 Qg6 Nf5 Nf6 Qg7 e7 Ne3+ Ke6 d5 Kd6 d4 Ba7 d3 Ncd5 Nb4 Qc2 Rh8 Rd1 Qg8 Qc1 Nc2 Qa1 Na3 Bh4+ Kf3 Rd2 Nd1 Bg1 Ba6 Kd7 Qe6+ Kd8 Rh6 e8R Bb4 Rh8 Ba5 Re8 Qc6 Re4 Bb5 Qcf5 Qd6+ Kc8 Qe6+ Kb8 Rh5 Rb2 d2 c8R Ba6 Rb7 Bb5 Ng3 Ba6 Bd3 Kg2 Rd7 Rh7 Ne2 Rh6 Bgf2 Bb5 Rcd8 Rh8 Rf1 h1Q Bg1 Qh2 Rf3 Kh1 Rh3 Rh7 Be1 Ba6 Rh6 Qh3 Bh4 Qe3 Rh5 Qc5 Rh6 Re7 Rhh8 Rh7 Qfe5 Rh6 Qeb2 Bb5 Qc2 Qcc6 Be1 Rh2 Bh4 Qc7+ Ka8 Rd4 Bc4 Ba4 Ba6 Bb5 Qg7 Bd3 Qg6 Qcd6 Ka7 Rc4 Kb7 Qc6+ Kb8 Qc7+
2R4r/qR1Q3P/5pBk/n2b3r/3R1npB/B1KQ2P1/N1N1n3/1Q1r1B1N w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 fxe5 h5 g4 Bc5 gxh5 Be3 Ra4 Bf4 Ra1 Bg3+ hxg3 Bg4 Ra4 Bf5 Ra1 Bc8 d4 Kf8 Kd2 c5 e4 g5 b4 Kg7 h6+ Kg6 h7 a5 b6 a4 e6 a3 b5 a2 d6 g4 d5 c4 e5 Qe7 b7 Qf8 d7 Ra7 d8R Ra3 e7 Kg7 e8Q Qc5 b6 Ra5 e6 Ra8 d6 Qh5 d7 Kg6 e7 Qh3 Ba3 Kh5 Kc3 Ra6 Qd3 Qh2 Nh3 Nf6 Nf2 Nc6 b8N Bb7 Rc8 Ra5 d8B Qh4 Na6 Ne5 Nb4 Bd5 b7 Nc6 b8Q Kh6 Qd7 Nh5 e8B Qe7 Nc2 Rc5 Rg1 Nf4 Nh1 Na5 Qb3 Qe3 Bh4 f6 Bg6 Rb5 Rg2 Qa7 Re2 Rc5 Re4 Rb5 Rd4 Rc5 Nd2 Rb5 Rb1 a1R Rb2 Rd1 Qa2 Rc5 Rb7 Rb5 Nb3 Rc5 Kb4 c3 Nc1 Rb5+ Ka4 Rc5 Qb1 Rb5 Na2 Rc5 Ne3 c2 Kb4 c1N Nc2 Nce2 Qc4 Bc6 Qa6 Rh5 Qd3 Nc4 Kb3 Bf3 Kb4 Bd5 Kb3 Na5+ Kb4 Nc1 Kc3 Nce2+
1B5r/2N2RR1/2P1bp2/QPn1Qn2/4Rq1Q/bNqBB3/k2N2p1/3q1NK1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Rh7 c5 Ra5 bxa5 Rh8 Kf2 Ke7 c4 Ke6 e4 g5 h4 d5 a6 a3 h6 a2 h7 g4 a7 d4 a8N d3 c6 d2 c5 Qd6 h5 Ba6 h6 Be7 c7 Qd5 c8N Bg5 c6 Qb3 Qe1 d1Q Be3 Qb4 Nd6 Qba4 Nf3 g3+ Kg1 g2 Nc7+ Ke7 e6 Qad4 e5 Q4d2 Nh2 Q1c2 Ne4 Bf6 Nc5 Qdd3 Nb3 Qg6 Bd3 Qc1 Nf1 Bb7 Qa5 Qf5 N1d2 Na6 Rh3 Qf3 Rg3 Bc8 Rg7 Qcd1 Rc1 a1Q Rc4 Qf5 Rf4 Bd7 Rf3 Qf4 Rf2 Kd8 e7+ Kc8 e6 Bb2 Rf3 Nc5 Rf2 Kb8 e8R+ Bc8 e7 Ba3 Rf3 Qc3 Rf2 Nf6 Rf3 Nfe4 Rf2 Ng3 Rf3 Rf8 h8B Nf5 h7 Rg8 Rg6 Rf8 Be5 Rg8 Rg7 Rh8 Rf8 f6 Rff7 Bd7 e8Q+ Bc8 Qe6 Bd7 Qd5 Be6 Rf2 Kc8 Re2 Kb8 Bd6 Kc8 Qe5 Kb8 Qb4 Ka7 Qa4+ Kb6 Qa8 Rf8 h8Q Rd8 Qh4 Rf8 Na1 Rh8 Qd8 Ka5 Nab3+ Kb4 Re1 Qcd4 Qa8 Kc3 Qa5+ Kb2 Na6 Rf8 Bb8 Ka2 Nc7 Q4a1 Bd4 Qb2 Re4 Rh8 Be3 Qc3
3B2k1/3Q3R/p3NQ2/rbNB2B1/2rPnKq1/Qq2R1P1/r3RB1p/1n1N4 w - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 cxd5 b5 exf5 b4 h4 b3 hxg5 Bg7 axb3 Bf6 b4 Be5 b5 Bg3 fxg3 Bb7 Ke2 Ba6 Ke1 Bc8 Ke2 Kf8 Kf3 c5 b4 e5 g6 h5 g7+ Kf7 g5 c4 g6+ Ke8 b6 h4 d6 e4+ Kf4 c3 f6 e3 b5 a6 f7+ Kd7 f8Q Ke6 d7 h3 b7 e2 b6 e1Q Bg2 c2 Nc3 Nf6 g8R Nc6 b8N Qe7 d8B Qc5 b7 Na7 g7 Ne4 Ra2 Qc6 Nf3 Rh5 Nd7 Rd5 b8B Ra5 Qa3 Kf7 Nc5 Qb5 Nd4 Qb4 Re8 Qb3 Nde6 Nb5 Ba7 Bd7 Qf3 Qf1 Nd1 Qfc4 d3 Qcb4 Be3 c1R Re2 Rc4 Qf2 Kg6 g8Q+ Kh6 Bc1 Rc8 Qg4 Kh7 Qd4 Nbc3 Qf6 Nb1 Be3 Qb2 Bf2 Q2c3 d4 Bb5 Bb8 Qbb3 Bd6 Rca4 B6e7 Qcc4 Bf3 Qd5 Rh2 Qh5 Qgf5+ Qg6 Qd5 Rc4 Qd7 Rc2 Bg2 Ra2 Re3 Ned2 Bd5 Ne4 Qf7+ Qg7 Bg5 Rc7 Re7 Kh8 Qf6 Kg8 Rg2 h2 Rf7 Qg6 Rh7 Qh5 Rg1 Qh3 Rge1 Rc8 R1e2 Qh5 Na4 Rc4 Nac5 Qg4+
3B1k2/NR2R2P/1r3q1N/1BBnbn2/1K2QPpq/2R1bb2/3RQ1p1/2Q3N1 w - - 0 1 illegal: Other
2K1N2r/5BPp/1QpR2nB/qN1N3k/1b1q1r2/P2bQ1Q1/NRbR4/2B5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 Be6 h4 Nf6 g4 Qd7 h5 Ng8 g6 Nc6 g5 Ne5 g7 Ng6 hxg6 Qd8 Rh5 Bd7 Rh1 Bc8 Kf2 e5 Kf3 b5 Kg4 e4 d4 e3 a6 e2 d6 e1Q d5 b4 d7+ Ke7 a3 b3 f6+ Kd6 Kf5 b2 a7 c6 f7 Ke7 Rh2 Qe8 Ne2 Nf6 g8Q Qg3 g7 Qd6 g6 Qc5 Qe1 Qc4 Nbc3 Ba6 d8R Qc5 Nd4+ Be2 Ra2 Qb6 Rd6 Rb8 a8N Rb7 Nc7 Qa5 Ndb5 Qea8 Ne8 b1B+ Rc2 Ne4 Rb2 Bh5 Na2 Qb8 Bc4 Qaa7 Qe3 Qa5 Rhd2 Bd3 Bb3 Rd7 Bc4 Kd8 Ke6 Nf6 Bb3 Be7 f8B Qba7 Qf7 Qd4 g8N Qab4 Nbc3 Bde2 Bh6 Qb7 g7 Ng4 Qff2 Qb5 Qfg3 Bc4 Ngf6 Bd3 Bc4 Kc8 Bb3 Rc7 Rd7 Qa5 d6 Ne5 Qeg1 Bd1 Q1e3 B1c2 Bd5 Bf8 Bb3 Ng6 Rd8+ Kb7 d7 Bb4 Nb5 Kb6 Rc8 Kc5 d8Q Rf7 Bd5 Rff8 Kd7 Bb3 Rc7 Bbc2 Kc8 Rf7 Be6 Rff8 Nd5 Rf4 Bf7 Kc4 Re7 Kc5 Re6 Kc4 Ndc3 Kc5 Qb6+ Kc4 Ne4 Kd5 Rd6+ Ke5 Nec3+ Kf5 Qh2 Kg4 Qhg3+ Kh5 Nd5 Qc3 Qg2 Qc4 Qgg3 Qd4
2bQ1R2/R1BB1pQ1/2N3q1/3r4/R2NpbPB/QPK3N1/1Qb1q2r/3k1n2 w - - 0 1 legal: proof: c4 g5 d4 b5 h4 d5 hxg5 Kd7 cxd5 b4 e4 b3 d6 Kc6 d7 Kd6 axb3 Ke6 b4 Kd6 b5 Ba6 Na3 Bb7 Nb1 Bc8 e5+ Ke6 d5+ Kf5 f3 Kg6 f4 e6 Rh3 Qe7 Rh4 Qd6 Rh1 Nc6 exd6 e5 Rh5 e4 Rh1 Ne5 fxe5 Bh6 Bd3 Bg7 Bf1 Bf8 Kd2 Kf5 d8B Kf4 g4 a5 b6 c5 g6 h5 g7 a4 e6 h4 b7 c4 b8Q h3 e7 h2 e8R a3 d7+ Bd6 Nf3 a2 Rf8 Be5 d6 Ra5 Bh4 Rd5+ Nd4 Ne7 g8Q Nf5 d8N Ng3 d7 Rh6 Nc3 Bd6 Rg1 h1B Qdb3 Bf3 Qg7 Bd1 Nc6 Bc2 d8Q Be5 Qa3 Bc7 Rb1 a1Q b3 Qa2 Ra1 Qb2 Qba8 Qa2 Qb2 Qa6 Ra4 Rh8 Nb8 Qg6 Nc6 Bb8 Nb5 Rh6 Nd6 Bc7 Nf5 Be5 Be7 Rh2+ Be2 Nf1+ Kc3+ Nd2 Ng3 Ke3 Bh4 Bf4 Ra7 Kf2 Ra4 Nf1 Be3+ Ke1 Qa6 Bg5 Bf4 Bh6 Bd3 Kd1 Bc7 Be3 Qa5 Bf4 Qc5 Ke1 Qca3 Kd1 Kb4 c3 Bb5 Bb1 Rg2 c2 Kc3 c1Q+ Rc2 Ke1 Ra7 Qd1 Rc1 Bc2 Ra1 Be5 Qa6 Bf4 Ra4 Qb1 Qa5 Kd1 Qb4 Qa2 Q4a3 Re2 Na5 Rh2 Bd7 Qa1 Nac6 Qc1 Kb4 Qd2+ Kc4 Qf2 Kc3 Qe2
R2r4/3Q1B2/1RP2Bb1/2nBnp1k/p1N4B/1n1r2QQ/2n1K1PN/5qRN w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Be7 c5 Bd6 Rh6 Bc7 Rh1 Ba5 bxa5 Qf6 Bf4 Qb6 Bc1 Qd8 e4 h5 c4 d5 a6 f6 b6 Kf7 c6 Kg6 b7 d4 c5 h4 e6 d3 e5 h3 e7 d2+ Ke2 h2 e8N Nd7 b8B Ne7 a7 Nf8 c7 Bd7 c8Q Rh4 c6 Qa5 e6 Kh5 g6 Qc3 g7 Rf4 g8Q Kh6 Qg3 Rf5 Nh3 Rd5 Bb2 Rd4 Rg1 h1N Nd6 Rd5 Nc4 Qc1 Nf2 Neg6 e7 Ne5 e8B Rd3 Bf7 Ne6 Ra3 Nc5 Rb3 Bf5 Rb6 Bg6 Qch3+ Kg7 Bc7 f5 Bd8 Nb3 Bh4 Rad8 a8R Kh6 Bd5 Kh5 Bc3 Nf3 Bcf6 Ne5 Nc3 Re8 Nb5 Rd8 Nd4 Qa1 Nf3 Qb1 Qc2 d1N Qd2 Ne3 Nh2 Nc2 Bf7 Rc3 Qd7 Rd3 Nd1 Nf2 Bd5 Ne4 Nf2 Ng5 Nh1 Ne4 Bf7 Nf3 Nb2 Nec5 Kf2 Rd5 Bc4 Ne5 Ke2 Rd1 Bcd5 Rd3 Nc4 Qf1+
nBR4b/3NR2Q/QNp2p2/1q3N2/BQ4r1/n2KPr1P/BR4r1/kB4r1 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 b6 h5 gxh5 a5 b3 a4 Bg2 a3 Bh3 Bd7 Bf1 Ba4 bxa4 Qf6 Bh3 Qd6 Bf1 Qd8 d4 Kd7 Kd2 g5 b7 a2 h3 g4 e6+ Kd6 a5 f6 e7 g3 e8B g2 a6 Nh6 a7 Bg7 Na3 Bf8 Rb1 a1R Nf3 g1R Nh4 Rg7 Qe1 Ng4 h6 Nc6 b8N Nge5 h7 Rg2 Nd7 Nd3 Nc4+ Ke7 d6+ Ke6 Nf5 Kd5 Ncb6+ Ke4 d5 Ra6 Rb2 Rb8 a8B Rhg8 h8Q Nde5 Qh7 Ne7 Bf7 N7g6 Bc6 Ra1 Ba4 c6 Kc3 Qc7 Bf4 Bg7 e3 Nf8 Rg1 Bh8 Be6 Rf2 Rg7 Rf3 Re7 Nc4 Qe2 Na3 Qa6 Rd8 Bc4 Rg5 Ba2 Rg4 Kd2 Qb8 Bb1+ Nc2 Bf7+ Ne6 Ne5 Rh4 d7 Qd6 Ra2 Re8 d8R Qc5 d6 Qc4 d7 Nc7 Rc8 Qb5 d8Q Na8 Qd6 Rg8 Kc3 Rg2 Ned7+ Qe5+ Kc4 Rhg4 Be6 Qa5 Qb4 Qe5 Bg3 Qa5 Bb8 Qb5+ Kb3+ Kd3 Bg8 Ke2 Kc3 Kd1 Bc4 Kc1 Kd3 Na3 Bbc2 R2g3 Rb2 Ra2 Rb3 Rg1 Bb1 Raf2 Rb2 Rfg2 Re2 Qc5 Bca2 Qb5+ Qc4+ Nc2 Rf2 Kb2 Rd2 Ka1 Re2 Qa5 Qb4 Na3 Rb2 Qb5+
1q3B2/1n3N2/BQRb1B2/3bN3/1N1P1K1r/1pqBP3/2pRQR1q/k1b2Q2 w - - 0 1 illegal: No possible last move
1R1R1R2/nqn1Kq2/3p1Npq/1Q1BN3/1PP4k/3NQ1n1/bB3Q1B/2rR4 w - - 0 1 legal: proof: h4 b5 f4 f5 d4 c5 dxc5 a5 a4 g6 axb5 Bg7 e4 Qc7 exf5 Kd8 g4 Qb6 h5 Qc7 f6 Bb7 f5 Qf4 g5 Ra6 h6 Bc8 hxg7 Qc7 f7 Rf6 gxf6 Qb6 Kd2 Kc7 Ke2 Kb7 Kd2 Qd8 Ke1 Kc7 Kf2 e5 Kg3 h5 Kh4 a4 Kg5 e4 f8B h4 c4 a3 b4 e3 c6 e2 Qe1 h3 Nd2 a2 Bb2 h2 Nh3 Ne7 g8N Kd6 f7 Rh4 Kf6 Re4 c7 Rh4 b6 Rh7 b7 Na6 Rd1 a1Q b8R Qc1 Bg2 Rh5 Qf2 e1Q Bd5 Qe4 Nf3 Qh6 Ne5 Qg2 Rhe1 h1N Nf4 Ng3 Qe3 Rh1 Nfd3 Qe8 Bg7 Nc6 f8R Na7 Bh8 Bb7 c8Q Nc7 Re2 Bc6 Qb7 Ba4 Qb5 Bb3 Red2 Qc8 Kf7 Ba2 f6 Qe4 Rd8 Qb7 Rf2 Qf5 Bg7 Qe6+ Kf8 Rg1 f7 Re1 Nf6 Rg1 Kg8 Ke7 Rf4 d6 Rf3 Qh5 Bh6 Qec8 Bf4 Qh6 Rf2 Nh1 Bh2 Ng3 Bf3 Ke6 f8Q Kf5 Kf7 Rh1 Ke7 Rf1 Nf4 Kg5 Nfd3+ Kh4 Be4 Qd5 Rf3 Qg8 Bd5 Qb7 Qf2 Qh5 Qh6 Rg1 Qhe3 Qh6 Nh5 Re1 Rff8 Rg1 Nf6 Rh1 Rd2 Rc1 Rd1 Qf7+
N5RN/PR1rk1B1/RN3p2/1q1Q1BQ1/1qq1bBp1/2R3n1/1r5P/1q3QK1 w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 d5 cxd5 a4 d4 a3 d6 Kd7 e3 Na6 bxa3 Nb8 a4 Ke8 a5 Ra7 Bd2 Ra6 Bc1 Ra8 d5 e5 Qd4 Nc6 Qd1 Nd4 exd4 e4 f4 Be7 Nc3 Bf6 Nb1 Be5 fxe5 Rh7 Bd3 Rh6 Bf1 Rh8 Kf2 g5 a4 b5 a6 c5 a5 g4 d7+ Ke7 e6 b4 h6 b3 a7 c4 h7 b2 a6 c3 d6+ Kf6 d5 c2 e7 Qa5 d8R Qd2+ Ne2 e3+ Kg1 Qa5 e8R Bf5 d7 Qb6 d6 Rb8 a8N Qc5 a7 Qc4 Re7 Rb6 Nf4 e2 Nd2 b1Q Ng6 e1Q Ra6 Qce2 Nc4 Qb2 Bf4 Rb7 Ncb6 Nh6 Rg8 c1Q d8Q Qcc2 d7 Qee5 Qf3 Q1e4 Bd3 Qeb4 Qf1 Qeb5 Be4 Qcc4 Bd3 Be6 Bf5 Bd5 Re3+ Qe7 Rc3 Be4 Qe8 Qc1 d8Q Qcb1 Qd5 Qeb4 Qed8+ Re7 Re8 Rg8 Nh8 Rg7 Rg8 Rg5 Qf8 Rd7 Qg7+ Ke7 Qg6 Rh5 Qg5+ f6 Nf7 Q1b3 h8B Qb1 Bg7 Rh3 Nh8 Re3 Na4 Re2 N4b6 Rb2 Be6 Rd2 Na4 Qd6 Qe1 Qbd3 Qa1 Re2 Kf1 Nf5 Qb1 Qb2 Rg1 Nd4 Bf5 Qdc2 Rg2 Qbb3 Qe1 Qcb1 Kg1 Rf2 Qf1 Ne2+ Kh1 Ng3+ Kg1 Ra2 Rb2 Qbb8 Rb4 Rb2 Rbb6 Qdc6 Rb5 Qbd6 Rb7 Q6b5 N4b6 Qdb4
1k5N/2nR1p2/4rQ1B/rPR4b/nKr1B1N1/2RN1pB1/Pn1Q4/2Q1nR2 w - - 0 1 illegal: Other
Q7/p4R1N/n2N1qpb/1K3B1n/BNQ2nP1/1N2BR2/1b1n1QPk/4R1b1 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 Na6 axb5 Rb8 h3 Be6 Qb3 Bg4 Qd1 Bc8 d4 Kd7 e4 Rb6 d6 Ke6 d7 Kd6 d5 Rc6 Ra3 Rc3 Ra2 Rg3 Ra1 Rg4 hxg4 Nf6 Qd2 Ng8 Qd4 Nh6 Qd1 Ng8 b6 Ke5 Ra2 h5 Ra1 Kf6 f3 e5 d6 Bb7 Rh2 Bd5 exd5 e4 Rh4 e3 Rh1 Rh6 Ke2 Rg6 Ke1 Rg5 Bd2 Re5 Bc1 Re4 fxe4 Qa8 Ra3 Qb8 Ra1 Qd8 Ke2 Kg5 Kd3 Kf4 Kc4 Kg3 b4 f5 b5 c5 b7 e2 b8Q e1B e5 g6 e6 f4 b6 h4 b7 f3 e7 f2 e8B h3 Qd3+ Kh4 Be3 Kg3 Ra3 h2 Nh3 Bb4 Kb5 c4 Ng5 c3 Nd2 c2 Nh7 c1B Nb3 Qc7 d8Q Bbd2 d7 Bd6 Qf6 Qd8 Qa8 Bf4 b8N Nc5 d6 Bb2 Nc6 Bb4 Qc4 B4c3 Bd3 f1N Bf5 Na6 Nb4 Nd2 Re1 h1N Qf8 Qf6 d8R Bh6 Rd7 Be5 Rf7 Nf2 d7 Bed4 d8N Nd3 Nb7 Nf4 Nd6 Bc5 Ka5 Kh2 Ba4 Qc3 Kb5 Nf6 Qh8 N6h5 Qhd4 Bb6 Qdc5 Qf6 Q5d4 Nf3 Qd2 Bc5 Qf2 Nd2 Bd4 Qe7 Qe3 Bc3 Ra2 Nf1 Rf2 Qf6 Rf3 Nd2 Qee2 Bb6 Bc5 Bd4 Qf1 Bg1 Be3 Bd4 Qf2 Bb2
bnNn2NB/2NR3Q/n6b/n1P1PQQB/kN3B1p/4p2K/1R6/qq2R3 w - - 0 1 legal: proof: d4 h5 a4 a5 h4 c5 e4 g5 hxg5 b5 axb5 d5 dxc5 e5 Bf4 d4 Bc1 Ra7 f3 Rd7 f4 Rd5 exd5 e4 Qg4 Rh6 Qe2 Re6 Qd1 Re5 fxe5 Bh3 Qd3 Bf5 Qd1 Bc8 Kf2 Kd7 Kg3 f5 b4 f4+ Kh3 f3 g4 f2 c4 a4 b6 a3 b5 d3 d6 h4 g6 d2 b7 a2 g7 Nh6 g8N Nc6 b8Q Nf5 g5 Be7 b6 Nb4 g6 Kc6 b7 Qf8 d7 Nd3 d8B Nd6+ Qg4 d1N g7 Ne1 Nf3 Nc3 Bf4 e3 Be2 f1N Ng5 Qf5 Qa7 Qf6 b8R Qg6 Qf5 Nd2 Rb2 Nb7 Ne6 Nb3 Bh5 Bg5 Bf6 Na4 Na3 N3a5 Nc7 Nd3 Rhe1 Nb4 Rad1 a1Q Rd7 Nd8 Nc2 Bb7 Qb8 Ne6 Qd8 Na6 Qe7 Ba8 Nb4+ Kb7 c6+ Kb6 Qf7 Bh6 Qg5 Qgb1 c5+ Ka7 Qfg6 Nb6 Q6f5 Nd8 Ne7 Qaa2 g8Q Qba1 Qgh7 Q2b1 Rd5 Nd7 Bh8 Ndb8 Ng8 Qd3 Rd7 Qb5 Ne6+ Qb7 c7 Qe4 Ng7 Qeb1 Ne8 Kb7 Nc2+ Kc6 Nb4+ Kb5 c8N Ka4 Nc7 Bd5 Ree2 Bc6 Re1 Ba8
r2n1q2/2P3pK/2R2bR1/N4NBQ/2pP2B1/k1prB1Q1/3q1NBR/2rQ4 w - - 0 1 illegal: Other
N4Q2/3b1pQ1/2brk3/B1PN4/R2Q1npq/B2Np3/K1Qb1p1P/1RR2B2 w - - 0 1 illegal: Other
1R2b3/1b2PpBp/r3kP2/KQq3r1/2R1rQ2/B2Q1R2/1Np1N1p1/5BNR w - - 0 1 illegal: No proof kernel
k2K2Bb/N2Q2rn/n1bQ4/br3NR1/1R1R3P/n3Bq1N/1PqN2Qq/1B6 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 c5 d4 Kc7 e4 Kb7 h4 a5 d6 c4 b6 a4 e6 g5+ Ke5 f4 h6 a3 e7 a2 e8B f3 h7 g4 d7 g3 Ke6 f2 e5 g2 d5 c3 d6 c2 Bc4 f1Q Be3 c1N Bg6 Qe1 Nh3 g1B Nd2 Qg3 Bb1 Bh2 Rg1 Qf4 Rg5 Bg7 Qe2 Na6 Qg2+ Kb8 b7 Qc7 Bb3 Nf6 Ke7 Qc6 d8R Ne2 e6 Nd4 d7 Rg8 h8N Qcf3 Nf7 Nc2 Nh6 Nh7 Nf5 Bh8 Bc4 Na3 Bd5 Kc7 b8N Bb7 Nc6 Rb8 Na7 Rg7+ Ke8 Qa4 e7 Bc6 Bg8 Rb5 Rb8 Qc2 Rb6 Rc5 Rb4 Rb5 Rd4 Kb7 Kd8 Ka8 e8Q Bd6 Qg6 Bb4 Qd6 Ba5+ Ke8 Bd5 d8Q+ Nb8 Qc8 Bc6+ Qcd7 Na6 Rb4 Qc4 Bc2 Qcf4 Rd1 a1Q Be4 Qc1 Bb1 Nc7+ Kd8 Qh2 Nb3 Qc4 Rd4 Qc2 Nd2 Na6+
5nRB/1q3bKr/3r4/2N1PN1k/2qNb2b/PQB1q2B/Rn3rQ1/3RR2Q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e6 f5 Kf2 c5 Kg3 b5 Kf4 g5+ Ke5 f4 e4 f3 h4 f2 d4 g4 a3 b4 e7 Kf7 e8N b3 h6 Kg6 h7 c4 d6 b2 h5+ Kf7 h6 Kg6 d7 g3 d5 g2 a6 c3 d6 c2 a7 Ba6 Ra2 Qh4 d8R Nf6 d7 Bc4 Ng7 Nd5 Nc3 b1B Bb2 c1Q Nf3 g1Q Na4 Qg2 Nf5 Nc3 Qb3 Nd1 Bc3 Nb2 Re8 Be7 d8R Qhg4 Rd1 Bf7 Rc8 Rd8 h8Q Bg5 h7 Nd7+ Kd4 Rb8 a8Q Rb6 Nc5 Re6 Kd5 Qe3 e5 Qh4 Qg7+ Kh5 h8B Bc2 Rg1 Qa4 Qc6 Bh4 Qg8 Qh1 Bh3 f1R Ra8 Rf2 Rge1 Qa6 Qg1 Qg2 Qh1 Qgf1 N3d4 Qb7 Bf6 Rh8 Rg8 Rh6 Bh8 Reg6+ Nce6 Bb1 Kd6 Qc4 Qcg2 Rf6 Ke7 Be4 Nc5 Nf8+ Nd7 Bfd5 Ke8 Re6+ Kf7 Rd6+ Kg7 Bf7 Nc5 Rh7+
1RB2B2/B3R2r/q2qrbPn/6QN/2bQP1RN/k3r1nN/2qn2QK/4B3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 a5 b4 f5 e4 c5 d4 h5 e6+ Kd6 g6 a4 e7 c4 e8N+ Kd7 g7 a3 d6 c3 d5 a2 b6 f4+ Kh2 f3 g4 h4 g5 c2 b5 f2 b7 h3 b6 Nc6 b8R Nh6 g8Q Ra3 b7 Qc7 Qd4 Be7 Ng7 Ra4 Nd2 Qb6 Ba6 f1Q Nh5 Bf6 Ba3 c1Q Ndf3 Rh7 Nh4 Ne5 Bb4 Qbc5 Be1 Ra3 Rb1 a1R Rb2 Re7 Rg2 Nc4 Rg4 Nd2 g6 Q1c2 Qg7 Kd8 d7 Kc7 d6+ Kc6 d8B Re3 d7 Re6 Be7 Rb1 d8Q Qd6+ Ng3 Rb5 Bf8 Rh5 Qa5 Bd7 Qg5 Be8 Qe7 Bf7 Qd8 Bg8 Qda5 Qfc4 Qaf5 Q4a2 Qf3 Qaa3 Qg2 Qa5 Bc4 Qa6 Bd5+ Kb5 Bb3+ Re5 Be6 Ka5 Bc8 Bc4 Ra8 Ka4 b8B Ka3 Ba7 Re6 Rb8 Nf7 Bb6 Rh7 Ba7 Qb4 Nh5 Nh6 Ne2 Qc5 Rf1 Qb4 Ng1 Qe7 Rf5 Qc5 Re5 Qcd6 Kh1 h2 Nh3 Re8 Rc5 Re5 Rc7 Re6 Re7 Bg7 Qg3 Bf6 Kg2 h1N Kh2 Qd8 Qf3 Ng3 Qg2 Qdd6
6NK/nbPrQqB1/2r4n/2R1PN1R/1N2BR1Q/B1rqb1n1/7Q/1k1b3N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 b4 d5 c4 a5 h4 d4 e4 d3 b6 d2 c6 g6 h6 a4 b7 a3 h7 a2 b5 Ra5 h5 Qf6 c7 Nc6 b8R Qg7 Kg5 f4 b6 f3 c5 f2 b7 Nd8 c6 Nf6 h6 Ng8 Ne2 Ba3 Bg2 f1Q Rh5 Rb5 Nbc3 Nf6 Qe1 d1B Ng3 Qg8 Nd5 Bc2 Nh1 Bd1 Nb4 Rd5 Bb2 Qb5 Rc1 a1R Rc5 Qf7 Qh4 Re8 h8N Rc1 h7 Rd7 Kh6 g5 Ng6 g4 h8B g3 Bg7 Qd3 Ne7 Rc3 Ng8 Ng4+ Kh7 Nh6 Kh8 Rf8 Bf3 g2 Ra8 g1N b8Q Re8 Ra4 Bb7 c8N Ne2 Ne7 Ng3 Nf5 Ree7 c7 Nc6 Qh2 Rd6 Qd8 Red7 Qdh4 Na7 Bc1 Bb2 Bg2 Ba1 Ba3 Rc6 Bf3 Bb2 Bg2 Bc1 Bf3 Be3 Bg2 Qf6 Bf3 Kf7 e6+ Kg6 e7 Qe6 e8Q+ Qf7 e5 Rc4 Q4h3 Rc3 Rh4 Kg5 Rh5+ Kf4 Bg2 Bf2 Qe7 Be3 Bf1 Kf3 Bg2+ Ke2 Qhh4 Kd2 Be4+ Qe2 Nd3 Kc2 Rac4 Kb1 Nb4+ Qc2 Bf3 Rb3 Rf4 Rc3 Be4 Qd3
R1K3k1/1P1N3R/1r1Nb1nq/3bBR1N/8/RqQrQ1qn/4n2P/B4QbB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Ke3 a5 Kf4 f5 b4 Kf7 e4 g6 d4 c4 b6 a4 h6 a3 d6 c3 d7 c2 b7 a2 e6+ Ke7 Ke5 f4 d5 f3 b5 f2 b6 g5 h7 g4 Na3 g3 Bb2 c1N Nb5 g2 Ne2 g1Q Bg2 f1B Nd6 Ra3 Nf4 Rf3 Nh5 Bd3 Qf1 Qc7 d8R Bh6 Rd7+ Kf8 Rg7 Na6 b8N Qd7 b7 Qf7 Nd7+ Ke7 Bd4 Kd8 e7+ Kc7 e8Q Nc5 Qe7 Ne2 Qf6 Ne7 Bb2 Rf8 h8B Kd8 Rh7 Bc4 Bg7 Rc3 Q6f3 Rb3 Qc3 Ne6 Bh8 Qb6 Rg1 Rb4 Bh1 N6f4 Rg5 Nh3 Rf5 Be3 Bf6 Qg6 Ke6 Qh6 e5 Bg1 Qce1 Rg8 Qd2 Qbe3 Nb5 Ke8 Kd6 Qa3 Nb8 Kf8 Kc7 Rg2 e6 Nef4 d6 Bc5 d7 Kg8 Nd6 Bd5 Qc3 Neg6 e7 Rd2 Bg7 Qb3 d8R+ Nf8 e8Q Bg1 Bh8 Rd3 Qe3 Bce6 Be5 Rb5 Nd7 Rb6 Rb1 a1Q Ra8 Ne2 Kc8 Ng6 Rc1 Nef4 Rc2 Qc1 Ba1 Ne2 Rca2 Qe1 R2a3 Qg3
3N4/P2b2R1/qR1rnN2/1r2QKnN/3BP1BR/Q6q/n1kb2Q1/1bN2q1B w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 Ke4 c5 d4 b5 h4 f6 a4 b4 h6 g4 a6 c4 a5 g3 h5 b3 h7 c3 e6+ Kd6 e7 g2 e8N+ Kd7 a7 b2 h6 c2 d6 Ke6 d7 Ne7 d5+ Kf7 a6 Kg6 d6 Bg7 Qd3 Nf5 Nd2 b1B Qa3 Qa5 d8R Nc6 d7 Nfd4 Rh4 Qc3 Nb3 Nb4 Nh3 g1N Bb2 Ngf3 Nc1 Rb8 a8B Rb5 a7 Ne6 Nf4+ Kg5 e3 Na2 Nh5 Qa5 Bd4 Qa6 Be2 f5+ Kd3 f4 Ke4 Bf8 Nef6 Bb4 Bd5 Rg8 h8Q Bd2 h7 Rg6 Bb7 Rh6 Rg8+ Rg6 d8N Bd7 Nd3 c1Q Rg7 Qe1 Qg8 Qg3 h8Q Qh3 Ba8 Ne1 Bg4 f3 Bd5 f2 Ke5 f1Q Nc1 Rb4 Bh1 Nf3+ Kd5 Rb2 e4 Rb5+ Bc5 Bd3 Rb1 Bc2 Rb4 Bb1 Rb3 Ra5 Rb6 Rb5 Ng3 Kf4 Kd6 Rg5 Bd4 Rgd5+ Ke7 Rd6 Kf7 Nfg5+ Kg6 Nb4 Qh5 Nc7 Qga2 Nce6 Q2b2 Na2 Qh8 Be3 Qg2 Bd2 Be3+ Ke5 Ngh5 Qe2 Bg1 Qf2 Qe8 Kd4 Qe7 Kc4 Qe8 Qf1 Bd4 Nc5 Qe5 Nce6 Nb3 Kd3 Nc1+ Kc2 Nb3 Qc1 Kf5 Qe1 Nc1 Qf1+
2Q3R1/Q6R/rbPkbN2/Nr1B1n1B/1rQ1q2b/N3BBP1/3r1K2/R1r1n3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 d5 b4 Kd7 c4 h5 b6 a5 g3 e5 f6 e4 f7 e3 f5 a4 b5 h4 g6 h3 g7 e2 f6 h2 c6+ Kd6 c7 d4 b7 a3 b6 d3 c5+ Kd5 c6 a2 Be3 d2+ Kf2 e1R Qg4 d1R Qc4+ Kd6 Bg2 Nd7 b8Q Ne7 g8B Ra6 b7 Rd2+ Ne2 Rc2 Qa7 Qe8 b8N Rh5 Na3 Nf5 Bf3 Ne5 Nd7 Be7 f8R Rb1 f7 Bh4 Nf6 Be6 c8B Rb4 Bd7 Rc1 Nd4 Rg5 Bh5 Nf3 Nb3 Ne1 Na5 Qe7 Ra8 Rd1 f8Q Rd2+ Be2 Rh5 Qc8 Rg5 Be8 Qh7 Rd1 a1B Bh5 Bd4 Ra1 Bb6 Rb8 Nd4 Bf3 Rgb5 Bf7 Qd3 B7h5 Nf5 Bd5 Rd1 Bef3 Qe4 Rf1 h1R Rb7 Rd3 Rh7 Nc2 Rfb1 Rc1 Rb3 Rdd1 Rd3 Ne1 Rd4 Qe5 Rg4 Qe4 Rg8 Rd2+
3Q1rR1/4b2q/P1B3N1/2n2B1R/Qn1bBPbN/2Kn1Nbk/4rb2/B2QR3 w - - 0 1 illegal: No proof kernel
3nQQ1b/B1qP3b/b2QPRRn/1r6/B3r3/2N4n/KBNB1N2/R2bbk2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 Kd2 c5 Kc3 h5 Kb2 a4 g4 c4 b6 f4 e6 Kd6 g6 a3+ Ka2 f3 g5 f2 g7 h4 e7 c3 e8Q h3 g6 h2 b7 c2 b5 Qg5 e5+ Kc7 e6 Kd6 b6 Rh5 Nc3 Qe5 Bd2 Nh6 g8R Ra4 g7 Nc6 b8N Nd8 Bb5 f1B b7 Bd3 Nh3 Bh7 Rf1 h1B Na6 Bf3 Nf2 Be7 Nb4 Bh4 Bd7 Qf4 Bc6 Qf7 b8B+ Qc7 Bd7 Ba6 Ba7 Re5 Bb5 Ra5 Ba4 Rb5 Rf8 Re4 g8Q Bg3 Rg1 Be2 Rf6 c1N+ Kb1 Bh4 Rgg6 Nd3 Ka2 Nf4 Nc2 Nh3 Qgf8+ Qe7 Nd3 Be1 Nf2 Bf3 Qb1 Bd1 Qb4+ Kc7 d6+ Kb7 d5 Qc7 Bb8 Kb6 Qd4+ Ka5 Qd3 Kb6 d7 Ka5 d6 Kb6 Qg3 Kc5 Ba7+ Kc4 Bc1 Bf3 Bb2 Bh5 Qh2 Bd1 Ng4 Kd3 Qe5 Ndf7 d8B Kd2 Be7 Nd8 d7 Kd3 Nf2+ Kd2 Nd5 Ke2 Bb4 Kf1 Qed6 Ke2 Kb3 a2 Ka3 Kf1 Bd2 Rd4 Nc3 Rdb4 Rb1 a1B Ka2 Re4 Bbc1 Bb2 Ra1 Ba3 Bb2 Bc5 Rf7 Bd4 Rf3 Bg7 Rff6 Bh8
N1rR4/qR3Q2/rn1Nb3/k5KR/1br2rQ1/PP4nQ/QB1B2b1/n1N4B w - - 0 1 illegal: No proof kernel
1nb5/1BqbK3/4QBN1/n1krbr2/1Rb1P2N/1QQ3B1/RP2Rn2/N3Rr2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kf3 c5 Kf4 f5 d4 h5 g4 a5 d6+ Kd7 b6 Kc6 d5+ Kb5 d7 a4 g6 a3 d6 h4 g7 h3 g5 c4 e6 h2 Ke5 c3 e7 f4 Ke6 c2 e8R f3 g6 f2 b7 a2 Nd2 Rh3 Nb3 Nc6 b8R+ Kc4 Nf3 Qc7 Nh4 Nf6 g8N Ne7 g7 Ra6 Bf4 c1N Bg2 f1B Bb7 Ra5 Bg3 Nc6 Ne7 Nd3 g8Q Bg7 Neg6 Bh8 e3 Be2 Re1 h1B Qc1+ Kb5 Qc3 Nf2 Kf7 Bc4+ Re6 Qb6 d8B Nd7 Bf6 Qc7 Re2 Rh2 e4 Bg2 Rae1 Bh3 Na1 Kc5 Ra8 Ndb8+ d7 Rh1 Ke8 Bf5 d8Q Rf1 Qdd3 Bh3 Re7 Bhd7+ Kf8 Rb5 Qe6 Na5 Rh7 Bg7+ Ke7 Bh8 Qb3 Bg7 Qdc3 Bh8 Nc2 a1R Rh6 Rd1 Na1 Rd5 Rh5 Rb6 Ra6 Rd6 Rb6 Re5 Rb4 Rdd5 Rf5 Bg7 Rf3 Rh5 Rd3 Rdf5 Rd6 Rd5 Ra6 Rhf5 Bg5 Be5 Bf6 Nac6+ Kf8 Bf4 Ra2 Na5 Ke7 Be5
qN5K/4N1rN/R1n1b2b/2BP3n/3B4/1QPQ1BR1/r1RQRrn1/1bn4k w - - 0 1 illegal: No proof kernel
rb3r1N/1B1kP2R/bn1n1BQ1/BrQ2r2/nP6/QN1q1N1R/8/1RbRK3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 c5 e4 a5 h4 g5 b4 f5 b6 a4 b7 g4 h6 a3 h7 c4 h5 a2 h6 c3 d6 f4 e6 g3 e5 c2 e7 g2 d7+ Kf7 e6+ Kf6 e8Q f3 d5 Na6 b8Q Qc7 d8R Qd7 d6 Ne7 Nd2 Nc5 Nb3 Nf5 Qa7 Na4 Ba6 Nb6 Rb1 a1R Rh3 Ra5 Bb7 Rb5 Qd3 Bg7 e7 Ke6 Be3 c1B Bd4 Rf8 h8R Be5 h7 Bh2 Bf6 f2+ Kd1 Bg3 Nf3 g1N Qg6 Ne2 Qa3 Bgf4 Qc2 Be5 Qc5 f1R+ Ne1 Rf4 Nf3 Nc3+ Ke1 Nca4 Qe3 Qc7 d7 Qc4 Qc5 Bc7 Rg8 Qc2 h8N Bb8 Rg7 Nd6 Rgh7 Qf5 Re8 Qd5 d8B Rf5 Bc7 Qd3 Rd8 Ne4 Rd4 Nd6 Rd5 Kd7 Bd8 Nc4 Ba5 Ncb6 Rd4 Qc4 Rd1 Qd3 Bd5 Ba6 Bc6+ Kc8 Bb7+ Kd7
2Q2b2/nBRP1rqQ/NNB5/B1P1N1b1/nR2b1R1/k1rQn3/b3r2B/K7 w - - 0 1 illegal: No proof kernel
Qnnk3n/B2N1BrP/QR3n1n/K6B/1b2P3/1N2N2q/2br2Q1/3RNRq1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 g5 b4 f5 d4 c5 Kd2 a5 Kc3 f4 e4 g4 e6 c4 b6 g3 d6 a4 h6 f3 d5 a3 b5 a2 Kb4 c3 e7 g2 h7 c2 d7+ Kf7 b7 f2 b6 Bg7 e8B+ Ke7 h5 Be5 h6 Nf6 d6+ Kf8 Bf7 Bf4 Qd2 Bg3 Be2 f1N Nc3 Be1 Nf3 g1Q Nd1 Rg8 h8Q Ng3 h7 Nf5 Ne3 Ne7 Kb5 Qc7 d8N Be6 d7 Qcg3 Nc6 Nc8 Ncd4 Ke7 Nb3 Rg7 d8R Ra6 Rb1 a1N Qd3 Ra3 Qg8 Bb4 Ne1 Ra2 Beh5 Qh3 Qc4 Rb2 Rd1 Bg4 Bd2 c1N Bc3 Rd2 Bd4 Kd7 Ka4 Bf3 Qa6 Nc2 Rb2 Ne2 Kb5 Qg6 Rf1 Nf4 Bc5 Qg1 Ka4 Nc6 b8Q Ng6 b7 Nh8 Qba8 Nb8 Ba7 Nd4 Rbb1 Nf5 Kb5 Bf8 Ka5 Kd8 Rb2 Nh6 Rbb1 Nbd7 b8N Be2 Rb2 Bd3 Rbb1 Bc2 Rb2 Rg3 Qg4 Be7 Qge2 Rg7 Qg2 Ne5 Nd7 Nc6+ Ka4 Nb8 Ka5 Nb6 Nbc5 Nc8 Rb6 Bd6 Nb3 Bb4+
2n5/1b3krR/NNBrr1bB/2bQrn1q/5QR1/NPRPB3/8/BqQ2K2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 h5 g4 e5 b3 a5 g6 c5 g7 c4 f6 e4 f7+ Ke7 d6+ Kf6 d7 e3 f5 a4 d3 c3 b6 c2 b7 e2 g5+ Ke7 f6+ Ke6 g6 h4 Na3 h3 Nf3 h2 Be3 c1R Nd2 Bc5 f8Q Ra6 f7 Qe8 d8B Rd6 Bf6 Rh7 Ndc4 Ne7 g8R Nf5 g7 Nc6 b8N Nce7 Na6 Bb7 Bg2 Nc8 Nb6 Qb5 Kf2 e1R Bc6 Rc4 Qb1 Re4 Qc1 Re5 Ra2 Qa5 Rc2 Qb5 Rc3 Qa5 Rg1 h1B Rh8 Be4 g8Q Rg7 Rg4 Re2+ Kf1 Qb5 Nc2 a3 Rh7 a2 Na3 a1Q Rg1 Rg5 Rg4 Qb1 Qh6 Rg7 Qf4 Qa5 Qd8 Qb5 f8B Kf7 Qd7+ Nfe7 Qdf5 Ree6 Qd5 Bg6 Rc2 Nf5 Ba1 Qb4 Rc3 Qa5 Be7 Qb5 Bg5 Qa5 Bg1 Re5 Bh6 Qa4 Be3 Qe4 Ke1 Qh1+ Ke2 Qh4 Kf1 Qh5
5r2/BBQK2Rn/4NBQr/4bN2/2r2QP1/nR1P3b/r3N1N1/kqRnq3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 c5 f4 h5 g4 a5 b4 h4 f6 c4 b6 c3 b7 c2 d6 Ke6 d7 a4 g6 a3 g7 a2 f5+ Kd6 b5 Kc5 b6 Kb4 Kd5 Kb3 Ke6 e4 f7 e3 f6 e2 Bg2 e1Q+ Ne2 h3 Bb2 h2 Nc3 Qf1 Nd5 Bb4 f8N Qf2 f7 Bc3 Qb1 c1R Ndf4 Nf6 g8N Qe1 Qg6 Nc6 b8B Be5 d3 Rh6 b7 Nh7 Ne7 Na5 Nf5 Rc4 Rc1 a1R Ba7 Ka2 b8R Bb7 Bf3 Be4 Rb3 Qb8 d8Q Qbb4 Rf1 h1N Qc7 Nf2 Ng2 Nd1 Kd7 Qb7 Ne6 Rf8 Bc3 Qb4 Bcd4 Ba8 Bb7 Qb6 Rbc3 Qb1 Rh1 Kb2 Rh5 Ra2 Rg5 Ka1 Rb3+ Rc3 Nfg7 Nc4 Nf5 Re8 f8Q Na3 Qb4 Rf8 Qa4 Bg3 Bf6 Be5 Qf4 Rc4 Bc8 Be4 Bb7 Bd5 Qh5 Be4 Rg7 Bf3 Nc3 Be2 Qg6 Bf1 Ne2 Rb4 Ngh4 Bh3 Ng2 Rc4
1b4Q1/B2qN1RB/3bQnKQ/1Qb2B2/Nn2PR2/1N1P3r/4brk1/1q3Rr1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 a5 Kg5 c5 e4 f4 b4 g6 h4 f3 h6 c4 e6 Kd6+ e7 Ke5 d6 a4 b6 c3 b7 f2 d3 c2 h7 a3 b5 a2 d7 Qa5 d8Q Bf5 e8B Be6 b6 Nd7 b8N Bg4 h5 Ngf6 b7 Be6 h6 Bh3 Ne2 Nc5 Nec3 Bd6 Be3 c1B Rg1 Qb6 Qg4 Qc6 Nd2 Na6 Nb3 Qd7 Na4 Bca3 Ba7 Bac5 Rd1 Rf8 h8Q a1B h7 Nb4 Qa5 Bg2 Qg8 Bf3 h8Q Be2 Bh3 f1Q Qh6 Bc3 Ra1 Qb1 Qb5 Be1 Bf7 Bg3 Be6 Rf7 Bf5 Rh7 Rf1 Bh2 Rf4 Rh8 Na6 Rf8 b8R Bg3 Rb7 Bb8 Nc1 Kd4 Nb3+ Ke3 Nc7 Rf7 Rf2 Bd6 Rf4 Rhh7 Ne6 Rh8 Nd8 Rhh7 Nc6 Rh8 Bg2 Rf8 Bf3 Kf2 Ne7 Rh7 Qgh3 Kg1 B3g4 Rff7 Qe3+ Kg2 Qd4 Rh8 Qdc4 Rf8 Qce6 Rf7 Qhg7 Rh3 Bh5 Rf8 Kh6 g5 Kg6 g4 Qh6 g3 Rc7 Qc2 Raf1 Qd1 Kg7 Qb1 Bhg6 Kh2 Bh7 g2 Kg6 g1R+ Bg4 Kg3 Bf5 Kg2 Nc6 Qd8 Rg7 Qd7 Ne7 Ne8 Bg4 Rf7 R4f3 Rf4 Bf5 Nf6 Re3 Rf2 Rf3 Ne8 Rf4 Nf6
3RB1BQ/3NrrQ1/2k3N1/KRB1q2P/3QN3/1Rr4b/nP1b1b2/R1nb1q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Kd7 d4 c5 Kd2 a5 Kc3 g5 h4 f5 b6 f4 h6 f3 b7 c4 h7 f2 h5 g4 d6 g3 d5 g2 Qd4 a4 Kb4 c3 Rh3 a3 Nd2 a2 Ne2 g1B Nf4 c2 Bc4 f1B Ng6 Qc7 Rb3 Ra7 e6+ Kd8 e5 Bh3 e7+ Kd7 e8R Na6+ Ka4 Nf6 Ne4 Bf2 Be3 c1R Rb5 Rg8 h8Q Ng4 Qg7+ Be7 Rf8 Rc3 Rf3 Rf8 Bb3 Qb8 Ka5 Rf7 Rg3 Bg5 e6+ Ke8 e7 Kd7 Bc4 Ne5 Rf3 Nd3 e8B+ Kd8 d7 Kc7 d8R Bcg4 Bb3 Nc1 Rg3 Bd1 Bc4 Rd7 d6+ Kc6 Bg8 Bf4 Qdf6 Bh6 Bc5 Bg5 Qd4 Bd2 Bef7 Re7 d7 Qe5 b8N+ Kc7 Be8 Nb4+ Na6+ Kc6 Re3 Rc2 Rb3 Rb7 Nc7 Rc4 Na8 Rc3 Nb6 Rf7 Ra8 Rc7 d8Q+ Rcd7 Qg5 Re7 Rd8 Rf7 Q5h6 Re7 Qhh8 Rf7 Rb1 a1Q+ Na4 Nba2 Nb6 Re7 Qf7 Bf3 Nf4 Nd3 Bd6 Re6 Bc5 Rf6 Qfg7 Rf7 Rh1 Qd1 Re1 Qe2 Rb1 Qf1 Ng6 Bd1 Ra1 Ndc1 Nc4 Kc7 Nb6 Rde7 Nd7 Kc6
1r2R1QN/4QRrq/q1R1b2k/3NP3/n3Bbn1/2KRB1n1/rP1Nr1B1/4Q3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 c5 d4 g5 Kd2 f5 h4 Kf7 h6 Kg6 e6 a5 e7 g4 e8B+ Kh7 b6 f4 h5 a4 b7 a3 d6 g3 d7 c4 e5 f3 d5 a2 d6 g2 Ne2 g1Q Bg2 f2 Nec3 Qc7 d8Q Nd7 b8R Nb6 d7 Na4 Nd5 Ra7 Qe1 Nf6 Qe7+ Bg7 d8Q Qf1 Rb3 Be6 Rd3 Ng4 Bc6 c3+ Kc2 Qe2+ Nd2 f1N Qde8 Ng3 Rf1 Qd7 Rf7 Qb7 Rb1 a1R Qa8 Rb8 Be4+ Kh8 h7 Bh6 Bg2 Ra2 Be4 Nb6 Kb3 c2 Kc3 Bf4 Ra1 R2a6 Ra4 Qc7 Rc4 Ra2 Bb7 Qf1 Rc6 Qd7 Nc4 Qc7 Be3 Qd7 Nd2 c1R+ Kb4 Rd1 Kc3 Na4+ Kc4 Qe8 Bc8 Qh1 Nf1 Bh6 Ra6 Rd2 Rf2 Bf7 Qd8 Kg7 h8R Nf6 Bh3 Rb5 Bhg2 Re2 Nd2 Qe6 Rf1 Nc5 Kc3 Ng4 Qd6 Qc8 Rc6 Be6 Rf3 Rf7 Qe7 Qa6 Rf5 Bg5 h6+ Kg6 h7 Bf4 Rhc8 Rg7 h8N+ Kh7 Rcf8 Qh2 Qae8 Rb8 Q8f7 Qh6 Re8 Qg6 Qff8 Kh6 Rf7 Qh7 Qg8 Na4+
2N2brN/1k1q4/q3b1n1/1BbPBq2/QB3Pn1/5KRR/Q2Rr2Q/N1q2Q2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 d4 c5 h4 Kc7 b4 a5 d6+ Kb6 f6 g5 d7 e5 f7 c4 h6 c3 h7 a4 h5 g4 h6 c2 Nh3 g3 Nf4 a3 Bd2 c1Q Kf3 g2 Nd5+ Ka7 b6+ Kb7 b5 g1B Ne7 a2 Qa4 Ra5 Na3 Qc4 Bb4 Nf6 Rh3 Nd5 Nc2 Qdc7 d8R Bg7 f8Q Bd7 Nc8 Rg8 h8B Ne3 h7 Nc6 d5 Ra7 Rd1 a1Q Rd2 Qc1 Na1 Be6 Rd7 Bh6 Rg7 Ne7 Rgg3 Qd7 Bg7 Ng4 h8N Ng6 Qf7 Kb8 b7 Q4c2 Qf4 Qf5 Bf6 Bf8 Bg7 Kc7 b8Q+ Kd8 Qa8 Kc7 Bf6 Qcc6 Qa2 Qa6 Qc6+ Kb8 b6 Ra8 Qcc2 Kb7 Bb5 Rb8 Qca4 e4+ Ke2 e3 Kf3 e2 Be5 Qc2 Qfc4 e1Q Qf1 Qec1 Kg2 Ka8 f4 Rb7 Kf3 Rc7 b7+ Kb8 Qac4 Bgc5 Qce2 Qf5 Qh2 Bcd6 Qa2 Rc4 Qa4 Re4 Qa2 Re2 Qa4 Kc7 b8Q+ Kd8 Qa8 Kc7 Bec3 Bc5 Be5+ Qad6 Q8a5+ Kb7 Qa2 Q6c6 Q5a4 Qa6
nR1n1N2/R2bR2n/N3B1r1/2QP1NB1/rPKb4/3Qq2N/1Q1B2n1/4qb1k w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 b4 Ke5 g4 Kf4 g6 c5 f6 a5 g7 e5 g5 h5 b6 a4 f7 h4 b7 c4+ Kc3 a3 f3 Kg3 d4 h3 d6 h2 g6 e4 d5 a2 d7 e3 f4 e2 f5 e1N f6 Qe7 d8B Na6 b8R Ng2 Na3 Qe3+ Qd3 Nc7 Nh3 Bc5 f8Q Ra4 f7 Nf6 g8N Nh7 g7 Bd7 Nb5 Na8 Ne7 Rg8 Nc7 Ba7 Rg1 h1B Na6 Kh2 Bd2 Qe1 Nf5 Bd4+ Kc2 c3 Kb3 c2 Kc4 c1N Qc5 Qe3 f8N Ne2 Bg5 Nef4 Be2 Ne6 Rge1 Nd8 Bg4 Qf4 Re7 Qe3 Rf1 a1Q Rf3 Rh8 g8Q Qae1 Qg7 Rg8 Qh8 Rg6 Rf4 Bc6 Ra7 Bd7 Re4 Nh4 Re6 Bg2 Re7 Bf1 Qf6 Kh1 Qh8 Ba1 Qb2 Ng2 Ng7 Ra5 Be6 Ra3 Nf5 Ra4 Qc2 Bh8 Qb2 Bd4
B3k2r/RKQrB1Pn/1N1Q1q1N/q1Qb2r1/B2N1RPn/8/1R1qB2b/6r1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Ke3 a5 Kd4 h5 e4 c6 g4 h4 b4 f4 d6 a4 Kc5 f3 d4 h3 g6 f2 e6 h2 e7 a3 d5 a2 b6 Bb7 g7 Nh6 d7+ Kf7 e5 Qe8 d8Q Nf5 e6+ Kg8 b5 Qg6 d6 Qh6 e8B Ng3 e7 Qf4 d7 Qf3 Qc8 Qb3 d8N Qb2 Nd2 Ra3 Ne2 Ba8 b7 Ra7 Kb6 c5 Nc4 Qd2 Nd4 Nf5 Be2 f1Q Nf7 Nh4 Bc6 Qf6 e8B Bd6 Rf1 h1R Rf4 Rg1 Ba3 Ra5 Bcf3 Nd7+ Kc6 Ra7 Nb6 c4 Bg2 c3 Nh6+ Kh7 Qc1 c2 Qc7 Nf8 Bd7 Kg6 Bgf3 Qd8 Bh1 Be5 Be7 Nh7 Qa3 c1R+ Qc5 Qf8 Qd6+ Qf6 Kc7 Ra6 b8R Bd5 Bc6 Ra5 Kb7 Be6 Bhd5 Rcd1 Bb3 Bc4 Ba4 Be6 Ra8 Bg8 Rb1 a1Q Ra7 Bd5 Rb2 Qa2 Re4 Bh2 Rf4 Qa1 Qc2+ Be4 Kc7 Nf3 Nb3 Rd8 Qa3 Rge1 Nc4 Re8 b6 Rh5 b7 Qd3 b8Q Rh8 Nb6 Nh4 Ba8 Rg1 B4c6 Rg5 Kb7 Qdd6 Qb4 Qa5 Qc7 Qdd4 Qd3 Qc3 Qdc4 Rd7 Qd6 Qd2 Nd4 Bh1 Qcc5 Bd5 Nhf5 Kf7 Nh6+ Ke8 Rf3 Bc4 Rf4 Bf7 Ba4 Bd5+
1q1kq3/2N2PbP/2BK3Q/B2RQ3/b2R1qBb/N1q3R1/1Q1r2N1/n1Rn2r1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 d5 Ke3 a5 Kd4 g5 Ke5 g4 f4 d4 h4 d3 b4 g3 c4 e6 b6 g2 b5 d2 h6 a4 b7 a3 c6 a2 f6 Bc5 b6 Bf2 h7 Na6 b8R Nb4 h5 Bg3 h6 Bh2 c5 Ra5 c7 Ba6 c8R Ra4 f7+ Ke7 f8N Nc2 b7 Qe8 c6 Qd8 c7 Bg3 Nh3 g1Q Na3 Be2 Bg2 Qe1 Rg1 Bh4 f5 Ba6+ Qe2 d1Q Bc6 Nf6 Nf4 Rd4 Rg3 Ne4 Bd2 Nc3 Rc1 a1B Ng2 Rg8 h8Q Bb5 h7 Rg7 Qe3 Qf3 Rd1 Qef1 Qh6 Ba4 Be1 Rd6 Rd4 Nd1 Ba5 Qc3 Ra8 Bb2 b8Q Na1 Qb3 Rd7 f6+ Ke8 f7+ Ke7 Ke4 e5 Ne6 Qfc4 Kf5 e4 Ke5 e3 Rab8 e2 Rb5 Qe8 Rd5 Qb5 Qc2 e1Q+ Qe2 Qf1 Qf2 Bc1 Qb2 Qb8 Ne1 Bcg5 Re3 Qbb5 Rc5 Qf3 Rd8 Qc1 c8B Qf2 Rf4 Qb3 Nc7 Rd4 Rdd5 Rd2 Rfd4 Qb8 B8d7 Kd8+ Kd6 Rg8 Qe5 Bf6 Rf3 Rg1 Bg4 Qc4 Rg3 Bg7 Ng2 Qcb3 Rcc4 Qf4 Rc1 Qc3
B5N1/1Q1RP1Qq/Q1qR1q2/1n1B2BN/5q2/1QN1Pb2/Rr1k4/2b1nrnK w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 b4 f5 g4 a5 Kg2 c5 d4 h5 b6 h4 e6+ Kd6 b7 a4 b5 c4 b6 f4 g6 c3 g5 c2 g7 a3 g6 a2 Nh3 Nd7 Qd3 Ngf6 g8B Rb8 g7 Ne5 Qa6 f3+ Kh2 f2 Bg2 f1Q Nf4 Qf3 Rd1 h3 Bf7 Qf1 g8N Bh6 Bf3 Qe8 e7 Ne4 Be3 c1Q Bg2 Kd7 d6 Kc6 d7 Qb2 d8Q Bg4 Bc1 Qd7 d5+ Kc5 d6 Kb4 Be3 Nc3 Qf8 Qf5 d7 Nf3+ Kg3 h2 d8R h1Q R1d6 Qbc2 Qg7 Qf6 R8d7 Bg5 Bc1 Rh6 Be6 Qh7 Bd2 Rh2 Nh5 Ng1 Bf7 Rc8 b8Q Rc4 b7 Rf4 Be6 Qc1 Bc6 Rf1 Qc7 Qd5 b8Q+ Qb5 Ba8 Bf3 Qbb6 Bh6 Qe3 Qc6 Bd5 Rhf2 Qed3 Rh2 Be3 Nb5 Qcb7 Q1c4 Bb6 Bd2 Be3 Bc1 Bg5 Rhf2 e3 Rb2 Qc2 Qg4+ Kh2 Qgf5 Nd2 Qg4 Qca4+ Kc3 Qb4+ Kc2 Nb1 Qgf5 Nc3 Kd2 Rb1 a1N Qb3 Nc2 Ra1 Ne1 Ra2 Bd1 Kh1 Qf4 Qc4 Bg4 Qb3 Bf3+
bQq4b/N2k2nb/Q4bRQ/rP4KP/rBR1b2N/2b3R1/2B4n/N2N2B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 d5 b4 f5 h4 a5 c4 a4 e6 a3 h6 g4 Kf4 a2 e4 d4 b6 d3 h7 d2 c6 g3 b7 g2 c5 Bg7 h5 Ra7 e5 Qd3 b5 Qd7 c7 Na6 b8Q Qc6 e7 Qe6 c6 Ra8 Qa4 d1B Kg5 f4 Ne2 g1B Be3 f3 Nbc3 f2 Rh3 Bb3 Rg3 Bh2 Nd1 Qf7 Nc1 Qe6 Bd3 f1B Bc2 Bf8 Bg1 Nc5 Qa6 Bd5 Nb3 Bg7 Rc1 Nh6 Na1 Rg8 h8B Bd3 Qbb6 Bd7 c8N Ng4 c7 B7c6 Nd6+ Kd7 e8R Bh7 c8N Bde4 Nf5 Bcd5 Nh4 Bf6+ Kf4 Qc6 Na7 Qc8 Re6 Rg5 Bg7 Bc6 Bf8 Rg7 Nb3 a1B Be7 Bc3 Na1 Rg8 Bf8 Bh8 Rg6 Bcd5 Be7 Rf8+ Kg5 Rf4 Rb1 Bb7 Rb4 Bbd5 Rc4 Bb7 Rg2 Bg3 Bf8 Nh2 Be7 Bf2 Rg3 Bfd4 e6+ Ke8 Bd6 Bdf6+ Kh6 Bbd5 e7 Ne6 Bb4 Ng7 Qe3 Kd7 Qc1 Bc6 e8Q+ Kc7 Qe5+ Kd7 Qb8 Rf2 Bb1 Ra2 Bc2 Ra4 Qg5 Bd8 Qf6 Ra5 Kg5 Bcd5 Kf4 Bc6 Qg5 Bdf6 Qh6 Qg8 Nc8 Ra3 Qab6 R8a5 Na7 Ba8 Qa6 Qd8 Rh3 Qc8 Rhg3 Bfd4 Kg5 R3a4 Ng2 Be5 Nh4 Bf6+
bN6/1k1BB1q1/1P2Qpn1/QN2r3/R3b1N1/Pn3NnR/2R3KB/b3Qr1r w - - 0 1 illegal: No proof kernel
3n1B2/KQ3P1r/R4Qn1/2P2Brb/N1b1QBrR/p1bNB3/1q1RN3/1k1n4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c6 Kf7 Ke2 Kf6 Kd3 Ke5 Kc4 Ke4 Kc5 a5 h4 d5 f4 g5 b4 a4 c4 g4 b6 g3 b7 g2 c7 e5+ Kb6 d4 c5 d3 h6 d2 h5 Ra5 h7 Qd3 h6 Qa3 b5 Qb4 f6 Ne7 f5 Ra7 Qc2+ Kd4 Rh2 d1B Bd3 e4 Nc3 Nbc6 b8B Bd7 c8Q e3 Bf4 Rg8 h8Q e2 h7 e1N Qg7 Qb1 h8R Bg4 R8h4 Ne5 Be4 N1d3 Bce3+ Kc4 Qd8 Rc7 Ka6 Nf2 b6 Be2 b7 Nf7 b8N Be6 Nd7 Qb2 Ne5+ Kb4+ Kb6 Nd1 Qd5 Bh5 Qb7 Ba2 Ka7+ Ka3 Qd3 Nd8 Qd4 Qc2 Nd3 Qb2 Qg5 Bg7 Qe5 Rc6 f7 Rh6 f8B Rh7 f6 Bh8 Qgf5 Rg5 f7 Ng6 Qee7 Be5 Qff6 Bd4 Bf5 Be5 Nh3 g1R Rd2 R1g4 Ng1 Bd4 Qee4 Be5 Nd5 Bc3 Nb6 Kb3 Ne2 Ka3 Rb1 Bc4 Rc1 Ka2 Rb1 a3 Na4 Qc2 Rb6 Qb2 Ra6 Kb1
2NB2k1/1QnB2Br/6b1/b1q2nQN/1R6/K1NR1Pr1/bnN1P1p1/1q2R1Q1 w - - 0 1 illegal: No proof kernel
1QNRBBR1/1bB1R1b1/2q2b1N/r1Q1nQ2/1n1n3R/q2Pp3/4NPK1/r3k3 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 b4 Kf6 b6 Ke5 f6 Kf4 f7 g5 b7 e5 h6 a5 h5 c5 d6 e4 b5 c4 d7 g4 b6 g3 h7 c3 h6 c2 Qh5 e3 Na3 g2 Qc5 a4 Ne2+ Kf3 Nc4 g1Q Rh4 a3 Nd6 a2 Ba3 Qf6 d8R Bg7 f8Q Qf4 Qff5 Nc6 b8Q c1N b7 Ne5 d3 Qg4 Bh3 Ne7 Kf1 N7c6 Bb4 Rg8 h8R Qg6 h7 Ra5 Rb1 Re8 Rg8 a1B h8N Na2 Nhf7 Nd4 Nh6 Rf8 Ba3 Nb4 Rc1 Qe8 Rc4 Qc6 Rc3 Be6 Nc8 Bc4 Kg1 Ba6 Kh1 Bf6 Rc1 Rf7 Rcg1 Rh7 R1g7 Bc3 Re7 Bg7 Qg6 Qf8 Bd7 Bf6 Qf7 Rg7 Be8 Rg1+ Kh2 Rc1 Qbd6 Rb1 b8B Bb7 Bc7 Ra1 Kh3 Qe4 Qdb6 Qc6 Qa7 Bb2 Qb8 Nbc2 Nf4 Bg7 Qb4 Ng6 Red7 Nb3 Qe6 Bbf6 Qf5 Ne5 Qc3 Nbd4 Bc5 Qf7 Bf8 Qa2 Qc5 Nb4 Re7 Qb3 Ng2+ Ke2 Nf4+ Kd1 Ne2 Qa3 Kg3 Ke1 Kh2 Ndf3+ Kg2 Nd4+
Rn1nN1r1/1q6/2kBb1Rq/5Q2/K5Q1/Q1Pb2pR/3NrPrB/1Bb2NB1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 e5 Kc3 d5 Kb3 Kd7 h4 g5 h6 a5 h5 d4 b6 d3 h7 g4 c6+ Kd6 f6 e4 c3 d2 f7 e3 h6 e2 b7 e1Q c7 Qf6 Rh3 Qe8 Ne2 Qf4 Ng3 Qf6 Bd3 Qe1 Nf1 Nc6 b8B Bg7 f8Q+ Qee7 Ka4 Kd5 b4 Qd8 b5 Be6 c8Q Qc7 b6 Qb7 Ba3 Nd8 Bh2 Ne7 Bad6 Nec6 Bg1 Rg8 h8R Nb8 h7 Qh6 Qf5+ Be5 Qc1 d1B+ Bc2 Rg7 Nbd2 Be2 Qa3 Bd3 Rg8 Re7 h8N Re8 Qg6 Bf4 Bb1 Re7 Qd7 Re8 Qdf7 Kc6 Qff5 Re7 Nf7 Be3 Nc4 Bc1 Bdh2 Re8 Nfd6 Re7 Ne8 Rg7 Kb3 a4+ Kb4 Re7 Ncd2 Rg7 Qgh5 Re7 Rg6 Rg7 Qb2 a3 Qh4 a2 Qa3 Rg8 Bd6 Ra5 Bdh2 Re5 Ka4 Re3 Qhg5 Rg3 Qh5 Rg2 Qh4 Qc7 b7 g3 Qd4 Nd7 b8B Qb7 Bd6 Nb8 Bc2 Qb1 Qdg4 Qb7 Rb1 a1R Rb3 Qh8 Bb1 Ra2 Rb5 Qhg7 Ra5 Qh6 Ra8 Rb2 Nc4 Re2 Ncd2 Qh8 Rf6 Qh5 Rg6 Qh6
3Q1NkN/2N1bqn1/1b3r2/1nQ2P1R/p3r1q1/1NR3B1/1K2BBPQ/1b2Rr2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 f4 e5 d4 a5 Kd2 c5 Kc2 h5 d6 e4 d7 e3 g6+ Kg7 f6+ Kh6 d5 c4 g7 Kh7 b6 a4 b5 h4 b7 e2 d6 e1Q f7 h3 b6 h2 f5 c3 Qd4 Qe3 Qc5 Na6 b8Q Qe2+ Nd2 Qf6 d8N Qee6 d7 Nc7 b7 Qd4 Ngf3 Qg4 Nd4 Nf6 g8R Be7 N2b3 Nh5 Be2 Nb5 Be3 Ra6 Bf2 Ng7 Rae1 Rd6 Kc1 c2 Kb2 Qeg6 Rf8 Rf6 N4e6 Q6h5 Nc7 c1B+ Kc2 Be3 Kb2 Qhg6 Re8 Q6h5 f8N+ Kg8 Nf7 Qhg6 d8Q Be6 Rc1 Rh4 Nh8 Qf7 Rc3 Bc4 Re1 Bd3 Rh1 Bb1 Re1 Bd6 Re7 Bd4 Re3 h1R Rh3 Rf1 Rh2 Rh7 Rh5 Be3 Qba7 Be7 b8B Bd4 Qab6 Rhh6 Qbd6 Re6 Qh2 Re4 Nd5 Rb6 Bbg3 Rf6 Nc7 Be3 Qcd5 Ba7 Qc5 Bb6
1k1Nb1q1/R3Qnr1/1B1q4/N3PB2/P2R1q1b/2p1QQ2/1RBK2b1/1r1B2nN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 h4 c5 d4 Kc7 d6+ Kd7 h6 g5 a6 b5 h7 f5 d5 c4 e6+ Ke8 h5 g4 h6 b4 e5 g3 d7+ Ke7 a7 f4 Qf3 b3 Be3 g2 Ne2 g1Q Rh2 b2 Nd2 b1B Nb3 Be4 Na5 Nc6 Bb6 Qh1 Ng3 Qg1 Kd2 Bg6 Bd3 Qc7 d8R Be8 Bc2 Rb8 a8B Qd6 Nh1 Nd4 Bc6 Qg5 B6a4 Bb7 Bf5 Ne2 Bac2 Bg7 Qe3 f3 a3 Kf8 e7+ Kf7 Ra2 f2 a4 f1Q Rb2 Ng1 Rh5 Qdf6 d6 Qff4 d7 Bg2 Rh4 Rb7 Ra8 Qfg6 d8Q Bf6 Ra7 Qgg3 Rg4 Bh4 Qd3 Qd6 Bd1 Bb5 e8B+ Ke7 Beg6 Be8 Qd5 Rc7 Bfc2 Kd8 Bgf5 Bd7 Qd3 Kc8 Qd5 Kb8 Qd3 Qff3 Rd4 Be8 Qde2 Qff4 Qf1 Nf6 Qf3 Rf8 h8Q Ng8 h7 Nh6 Qg8 Rg7 Qe6 Nf7 h8N Qg6 Qe7 Qh7 Ng6 Rh8 Nf8 Qg8 Ne6 Rh6 Nd8 Re6 Qd7 Re7 Qe6 Rb7 Bc5 Rb6 Qe7 Rb5 Bb6 Rb3 Ra2 Rb1 Rb2 c3+
nR2B2R/k1B1n3/2QNQqqB/1P2KNnb/r1p4b/bQ2N3/2PR2Q1/4r3 w - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 c5 Ke3 g5 Ke4 a5 h4 a4 b4 g4 f4 d6 f6 Kd7 b6 Kc6 e6 Kb7 e7 d5+ Ke5 d4 e8N d3 h6 d2 f5 a3 h7 a2 h5 g3 h6 g2 f7 Ra5 f6 Be6 Qf3+ Bd5 Ne2 g1Q Na3 d1N Bf4 Nb2 Qg2 Bc6 Rd1 a1B Rd2 Qh2 Nd4 Rb5 Nc4 Ka6 b7 Bd7 Ne3 Ne7 Nd6 Ka7 N4f5 Na6 b8R Ra5 Bb5 c4 Bg3 Rg8 h8Q Qg1 h7 Ra4 Rh2 Rg5 Qg8 Be8 h8Q Nc7 Qhh3 Na8 Bd7 Rg4 b5 Rd4 Qc6 Nd1 Qhg2 Nf2 Rh8 Nh3 Bh2 Bb2 Bf4 Bg7 f8B Ng5 Qe6 Bh5 Be8 Ba3 Bg3 Bh6 f7 Rh4 Bg7 Rh1 f8Q Qb6 Qff7 Qf2 Qfg6 Re1 Qcf3 Nh7 Bh2 Bg5 Bh6 Bh4 Qc6 Qf1 Q6g4 Ng5 Qd1 Nh3 Qb1 Ng5 Qb3 Qf3 Ng3 Qf7 Ngf5 Qf6+ Kf4 Qc7 Bg3 Nc8 Bh2 Qcf7 Nb7 Nf3 Ke4 Q6g6 Bc7 Ne7 Nd6 Ng5+ Ke5 Qff6+
2q2B2/Nrk1nn1Q/1b3B2/p2R4/PN4q1/1Q2P1R1/BR1rR1Q1/1bKN2qn w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 fxe5 Bf5 cxd5 Nh6 b4 Ng8 bxc5 Bc8 d4 Kd7 Kd2 f5 a4 b5 h4 a5 h6 g5 h5 f4 d6 g4 e6+ Kc6 d7 f3 e7 f2 e8R g3 h7 b4 h6 g2 d5+ Kb7 d6 b3 c6+ Kb6 c7 b2 Nf3 g1Q Ne5 Ba6 c8N+ Kb7 Nd3 Nf6 Qb3+ Qb6 d8R Nfd7 Na7 Nc5 d7 Be7 Nc3 b1Q Nb4 Kc7 Rh3 Qg3 Nd1 Qg4 Rg3 Nd3 Ba3 Nc6 Ra2 Qb7 Rb2 Rb8 Bh3 Rf8 h8Q Nde5 h7 Nf7 Qg8 Bd3 h8Q Bc5 Qhh7 Qc8 Bg2 Bf5 Bd5 Bb6 Re5 Qa1 e3 Bb1 Kc1 f1N Rf5 Nh2 Rff2 Rb7 Rfe2 Nf1 Qgg6 Rg8 Qe4 Ne7 Qg2 Rg6 Nbc6 Qb4 Rh3 Nf5 Qc3 Nh4 Ba2 Nh8 Nf2 Ng3 Kd2 Nh1 Rg3 Qg4 Bf8 Nf5 Qb3 Ne7 Nb4 Nf7 Kd1 Bc2+ Kd2 Qf1 Nd1 Rg5 Kc1 Bb1 Re8 Nc6 Re5 Qg1 Rb5 Rd5 d8B+ Kd7 Bde7 Kc7 Bf6 Rd2 Rd5 Ne7
1r2QR2/qRB3KN/Q6P/3BbBp1/N1Rr4/k3n1b1/2P1nrN1/qR1bQ3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kd3 Kd7 Kd4 g5 Ke5 a5 h4 d4 f4 d3 b4 d2 f6 a4 h6 e6 f5 a3 b6 Kc6 h5 a2 b7 Ra7 f7 Bd7 f6 Qb6 h7 Bh6 f8R Qa5 f7 Qa3 b5+ Kc7 b6+ Kc6 Nc3 Qb2 Bc4 Ne7 Kf6 e5 Nf3 e4 Rb1 a1R Ne1 e3 Rh4 e2 Ng2 R7a4 Qe1 d1Q Bf4 Bg4 Bc7 Qd7 Be6 Bf3 Rc4 Nd5+ Kg6 Rb4 Na4 Kb5 c6 Bg7 h6 Ne3 Bd5 Rg8 h8Q Be5+ Qg7 Ra3 Kh7 Qa1 Qg6 Rd3 Qf6 Rd4 Qe6 Rg6 Qe8 Rf6 Kg7 Bh5 Qe6 Rf2+ Qf6 Na6 b8Q Nc5 b7 Ne4 Qe8 Nc3 b8R+ Ka6 Qd2 e1B Rb7 Bd1 Qe2 Rb6 Qf1 Ka5 Qh1 Bd2 Qe1 Ne2 Rb8 Qa2 Bd8 Qb3 c7 Qb2 c8B Nf1 Rg8 Qa7 Bc7 Qa2 f8N Qa1 Rcb4 Bc1 Nh7 Bcf4 Bf5 Ne3 Rf8 Bg3 R1b3 Rd2 Rc3 Rd4 Rb1 Qb2 Rc6+ Kb5 Rc3+ Kb4 Rc5+ Ka3 Rc4 Rd6 Rb6 Rd8 Rbb4 Rb8 Rb7 Bd6 Qfe6 Qa1 Qf6 Bdf4 Qa6 Be5+
2Q1qn1B/Nr2nk1b/2NP1Npr/Rr2b3/4P3/1bB1q2B/1R6/1QR2KBQ w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 a5 d4 c5 b4 f5 e4 g6 e6 a4 e7 f4 b6 a3 h6 c4 b7 c3 h7 a2 h5 f3 d6 c2 d5 Ra5 b5 Qd7 h6 Qh3 b6 Rb5 d7+ Kf7 e8N Qg4 d8Q Rb3 d6 Qh5 Na3 Rb1 Ne2 Nf6 Be3 c1Q Bg1 Qb5 Nd4 Bg7 Nc6 Ng8 Bh3 Ne7 Nf6 Be6 Qc8 Nd7 b8R Bb3 b7 Nf8 Kf2 Qe5 Kf1 f2 Nb5 Qe3 Nba7 Rb2 Rc1 a1R Rc5 Ra4 Ra5 Rb4 Qa1 Rb5 Qc1 Rg8 h8B Qe6 h7 Qd7 Ne8 Be5 Nf6 Qd8 Bg7 Qe8 h8B Rb1 Ra8 Rb2 b8Q Rb1 Qbb7 Rb2 Rb8 Rb1 Bh6 Rg7 Qb6 Rh7 B6g7 Rh6 Rb7 Rb2 Qb1 Rc2 Qd4 Rc4 Qdd1 Rcb4 Rc7 Rb7 Rh2 R4b6 Qf3 Rb5 Qh1 Qc3 Kg2 f1B+ Kf2 Be2 Kg2 Bg4 Kf1 Bge6 Rb2 Qg3 Nb8 Qe3 Rc1 Bed5 Nbc6 Bg3 Ng4 Kg8 Bc3 Be5 Bf6 Be6 Bg5 Kg7 Bh4 Bg8 Bf6+ Kf7 Bh8 Bh7 Nf6 R7b6 Bd2 Rb8 Bc3 R8b7
k1n5/7K/2PRBR2/nq3q1Q/2rp1BP1/B1Qr2N1/B2n1qbb/2NN1QR1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 a5 Kf3 e5 Ke4 h5 c4 a4 f4 d6 b4 Kd7 c6+ Kc7 g6 a3 g7 a2 c5 h4 f6 h3 f7 h2 f5 Be7 f8R Ra3 f6 Rb3 f7 Rhh3 Ba3 Bf6 Bc4 Rh5 Nc3 Rh3 Be6 d5+ Kf5 d4 Kg6 e4 Qh5 e3 g4 e2 Kh7 e1Q Nge2 Ne7 g8B Rb2 Nd1 Nf5 Ng3 Bg5 Rg1 Bd7 b6+ Kc8 b5 h1Q c7 Kb7 c8Q+ Ka8 Rc1 a1N Rc2 Qe8 b7+ Ka7 Rf2 Nc6 b8N Nb3 Na6 Qhe4 Nb4 Bf4 Na2 Nd2 Nc1 Na5 Rf3 Bb8 b6+ Ka8 Rf4 Rb4 b7+ Ka7 Ba2 Bc6 Rff1 Q8e5 Rd8 Rc4 f8Q Qf2 Be6 Nd6+ Qf5 Bc7 b8B+ Ka8 Rd7 Qee2 Qd3 Bd5 c6 Qef6 Qc3 Bg2 Qf8 Nc8 Rd6 Qfe5 Qff3 Qb5 Qfd3 Qf4 Rf3 Qf2 Qf1 Qfe5 Rf6 Qef4 Rd5 Be5 Rd6 Qg5 Nf5 Bh2 Ng3 Qgd5 Rd7 Qdc5 Bf4 Qe5 Rd6 Qed5 Nge2 Rd3 Ng3 Qf5+
1BNR2nB/QR1r4/NPQ2nBp/1qK5/Q4qk1/3P4/Nb2b3/r1R1Rrn1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 b4 c5 f4 a5 g4 h6 b6 c4 g6+ Kf6 b7 e4 Kd4 c3 g7 e3 d6 e2 g5+ Kf7 g6+ Kf6 b5 e1N d7 c2 b6 a4 Na3 Qe7 d8R Qe8 Ne2 Bd7 Bb2 c1R Nc3 Rc2 Nab5 a3 Nc7 a2 Na6 Ba3 Rc1 a1Q Na2 Rc8 Bd3 Rc7 Qa4 Ne7 g8N+ Kg7 f6+ Kf8 f7 Kg7 f8R Qf7 f5 Bc6 Bc3 Bb2 Kc5+ Qf6 Bd4 Nf3 Rhe1 Qb1 Be5 Nc8 Ne7 Ng1 Be4 Rd7 d3 Bd5 Rfe8 Rf8 Bd4 Nd6 Nc8 Nc6 b8B Ne7 Qc6 Ng8 Re7+ Bf7 Qa4 Ne8 Qc6 Kh8 g7+ Kh7 Bc3 Qh4 f6+ Bg6 f7 Qf4 Qa4 Nef6 Bce5 Bf5 Bc3 Kg6 Qc6 Re8 f8Q Kg5 Qf7 Bg4 Bg6 Be2 Qc4 Rf8 Q4a4 Kg4 Bce5 Rd6 Rb7 Qc2+ Bc3 Qb3 Be5 Rd7 Bc3 Ne7 g8Q Ra7 Qh7 Neg8 Qa3 Nh5 Bh8 Nhf6 N6b4 Ra4 Na6 Rff7 Qb4 Ra3 Qba4 Rf8 Nc3 Ra1 Na2 Nd5 Bbe5 Rd6 Ne7 Qe4 Ra7 Rf1 Nc8 Ndf6 Qg7 Rd4 Bb8 Qf4 Qgb7 Rd6 Qa8 Rd4 Rb7 Rd7 Qa7 Qb5+
1nK1q2n/2B5/1pR2PB1/R2QnRP1/2BN1Q1Q/q5Rr/1N1r2bb/k2N3q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 e5 Kg4 c5 a4 h6 f4 e4 d4 e3 g6+ Kf6 d6 c4 a6 e2 a7 e1N g7 c3 d5 c2 a5 Nd7 a6 Rh7 Rh5 Nb8 d7 Bd6 Bc4 Nd3 Nc3 Qc7 d8R Qe7 Nge2 Bc5 d6 Qe3 d7 Ne1 Ra5 Be7 Qd5 Rh8 Nd1 Nf3 Nd4 Bf8 g3 Ne7 g8R Nbc6 Rg7 Rb8 a8B Nh4 a7 Nhg6 Re8 Rg8 d8Q Nh8 Ba3 c1Q Bd6 Qca3 Bc7 Qe6 Rgg5 Rg7 Rh3 Rh7 Rhh5 Bg7 Rg8 Kf7 Rg6 Be5 Rhg5 Bd7 Rh5 Rc8 Rhg5 Nb8 Rh5 Nec6 Qh4 Nb4 Rhg5 Ke7 Rf8 Qg8 Rc6 Rd8 Rff6 Nd3 Rfg6 Be8 f6+ Kf8 Kf5 h5 f7 Ke7 g4 b6 f8N Bf7 Nd7 Qe8 Nc5 Bg8 Qf3 Bd5 Na4 Rh6 Qff2 Bg2 Nab2 Bd6 Bb7 Ne5 a8Q Kd7 Kf6 Rh7 f5 Rh6 Qhg3 h4 Qgf4 h3 Qh4 h2 Bba6 h1Q Bf7 Bb4 Bac4 Be1 Qb7 Rh7 Rg8 Bg3 Bg6 Bh2 Qa6 Rh6 Qb5 Kc8 Qd5 Kb7 Qhg3 Rh3 Qh4 Qef8+ Ke6 Rd7 Rb5 Ka6 f6 Qd8 Rg7 Qc8 Rf5 Qe8+ Re7 Rd8 g5 Rd7 Qde4 Rd5 Rb3+ Ka5 Rg3 Rd7 Qd5+ Kb4 Rc5 Rd8 Ra5 Qea4 Rd7 Qb5 Rd6 Rd7 Ne3 Kc3 Rc6 Qba4 Nb3 Rd8 Ned1+ Kc2 Nd4+ Kb1 Rd3 Ka1 Rg3 Rd6+ Ke7 Ned7 Kd8 Ne5+ Kc8 Rd7 Qc5 Rd5 Ne6 Rd2 Nd4 Q4b4 Qb5 Qe7 Qd5 Qe8+
kB4n1/2brn1P1/1R1N4/3N2Qr/1R4Np/qB1RPb1B/Q1K2q2/r2QQq2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Kd7 d4 a5 Kd2 f5 b4 h5 b6 c5 b7 Kc7 b5 a4 d6+ Kb6 d5 Ka7 b6+ Ka6 g6 f4 g5 h4 e6 f3 e7 a3 e8N c4 d7 c3+ Kc2 a2 g7 f2 g6 Bc5 d6 Qg5 d8Q Bg4 d7 Be3 Nf3 Nc6 b8R Bd2 b7 Ka7 Nd6 Nh6 g8B Qf6 g7 Rh7 Qe7 Nf7 d8Q Qg5 Bh3 f1R Nh2 Bf3 Ng4 Nh6 Bb3 Qf4 Qe5 Rf2 Qdg5 Ng8 Rd8 Nce7 b8Q+ Ka6 Qc8+ Ka7 Qc4 Rh5 Rb8 Be3 Rb4 Bb6 Re1 Qd4 Bf4 Bc7 Rg1 Rf1 Rg3 Rd8 Qe3 Ka8 Qec1 Bg2 Rd3 Rd7 e3 Qf6 Qe1 Bf3 Qcd1 Rh1 Na3 Qf8 Rb1 a1Q Rb6 Rf1 Nab5 Qa7 Qa4 Qf5 Qa2 Qa3 Ne4 Rg1 Nef6 Rh1 Be5 Qf4 Nd6 Qg3 Nd5 Qf2+ Rd2 Rg1 Ba4 Rh1 R1b4 Rg1 Bb3 Rh1 Kd3 c2 Kc3 c1Q+ Kd3 Qa1 Kc2 Rg1 Bf4 Qf6 Bg3 Qf1 Be5 Qf4 Rd3 Qg3 Bf4 Qgf2+ Qed2 Nf5 Nf7 Bd6 Q1e2 Q1g2 Bg3 Ra1 Qee1 Nfe7 Be5 Bc5 Bb8 Bd6 Qd1 Bc7 Nd6 Qgg1 Qe1 Qff1 Qdd1 Qgf2+
1N2kbB1/B1q2p1n/nB2N1q1/K1R3RQ/2QB4/Q4R1n/2PP1r2/1bN1r2b w - - 0 1 illegal: No proof kernel
3NB2n/N3PnKQ/1qbn1N2/k4q2/p1rR1Q1P/2R1b3/1rR1B1rB/Q2B4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Kd3 d5 Kd4 Kd7 h4 Kc7 b4 f5 c4 a5 e4 f4 h6 g4 b6+ Kc6 e6 g3 Ke5 d4 b5+ Kb7 h7 a4 e7 d3 e8B f3 Ra2 f2 Rh3 d2 Be2 f1Q Nf3 g2 Nd4 g1R Ne6 Qf7 Rc2 Nh6 Rhc3 Ra5 c6+ Ka8 c7 Kb7 c5 Qg6 c6+ Ka8 b7+ Ka7 Ba3 Kb6 Bd6 Na6 b8R+ Bb7 c8B Qe7 c7 Qd7 Nd8 Qh3 Bcg4 Rg8 h8Q Rg2 Qh7 Nb4 Qh1 d1N Nd2 Ra7 c8N+ Ka5 b6 Nb2 Qa1 Bc6 b7 Nd5 Bh5 Ra6 Na7 Rb6 Rc8 Be7 b8Q Nf4 Rd3 Rg7 Rd4 Bg5 Bd1 Rb4 Bhe2 Rgb7 Qbc7+ R7b6 Qcf7 Rc4 Rc7 Nd5 Qf4 Ne7 Rc8 Qe3 Bc7 Qh5 Ke6 Qhf3 e5 Ng6 Ne4 Nh8 Nf6 N6f7 Ke7 Qg4 Kf8 Qf5 e6 Qb3 e7 Qbb5 Qf2 Be3 Bh2 Rb7 Rc7 Qb6 Qf4 Rc5 Rcd7 Qb3 R4d5 Nc4 Rd3 Rb8 R7d4 Ncd6 Rdc3 Rc4 Qg4 Qb7 Kg7 Qc7 Qg3 Rb2 Qg4 Qb6 Qg3 Ng6 Qf4 Ngh8+
3qr1Q1/k2PpRNn/2Qq1BR1/1K3bb1/2nNQn2/4rB2/qB2P1N1/R4N2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 b4 Kd7 h4 a5 d4 c5 Kd2 Kc7 Kc3 Kb6 Kc4 f5 d6 a4 d7 f4 h6 f3 h5 f2 h7 a3 d5 a2 g6 Ba6 g7 Qc7 d8N Qg3 d6 Qg6 h6 Bb7 d7 Ra4 Nh3 Na6 Bb2 Qe4+ Qd4 Qe3 Nf4 Bg2 Rg1 Qf3 Nd2 Qe4 Nde6 Bh1 Rg6 Qa8 Qe4 Ka7 Ng2 Nf6 g8Q Ra3 Ng7 Qd8 Qc6 Nc7 b6+ Kb8 b7 Re3 b5 Ne6 Qe4 Ka7 b8N Nf4 Qgd5 Rg8 h8Q Nh7 Qde6 Qc7 Q6c6 Qd8 Ne1 Bf3 Bg2 Bg4 Bf3 Bf5 Ng2 f1Q Bf6 Qd1 Nf1 Qd6 Bb2 Nf6 Qh7 Rh8 Qg8 Nh7 Rd1 a1Q Rb1 Ng5 h7 Qa3 Ra1 Qa6 Ne8 Bh6 Ng7 Qaa5 Na6 Qa4+ Nb4 Qa3 Nc2 Qaa5 Qf7 Re8 h8B Nh7 Qg8 Bg5 Nd4 Qa6 Nb3 Qa2 b6+ Kb8 b7 Ka7 Kb5 c4 b8R c3 Nd4 c2 Rb6 c1N Rf6 Nb3 Rf7 Nh5 Nge6 Nf4 Bf6 Na5 Ng7 Nc4 Qcd5 Nd3 Be5 Qda3 Rg6 Nf4 Bf6 Qd6 Qc5+ Nb6 Qcc6 Nc4
2qK1b2/Q1RPp2q/2NrNR1B/n1r5/3BP3/1nbQn3/4Q3/QBk1qNR1 w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 g5 g4 d4 f4 d3 h5 Qd7 fxg5 Qd4 cxd3 Qd8 d4 Bf5 d5 Bg6 hxg6 Qd6 Nf3 Qd7 Ng1 Qd8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ Kb4 d4 a5 d6 c5 d5 h5 d7 a4 b6 f6 Ke6 c4 b7 f5 g7 a3 d6 c3 g6 f4 g5 f3 Qe2 Kb3 Nh3 a2 Rg1 h4 Nf4 f2 Nd2+ Kc2 b4 h3 b5 h2 b6 Qc7 d8B Nh6 g8Q h1N g7 Ng3 g6 Rh7 Qh8 Ng4 g8Q Rf7 g7 Na6 b8N Nb4 b7 Rf5 Nc6 Ra7 b8Q Raa5 Qa7 Rac5 d7 Rfe5+ Kf7 Ne3 Ke8 Qc8 Qgc4 Re6 g8R Rd6 Rg6 Ngf5 Rf6 Nd4 Ne6 Nb3 Rb1 a1B Qca6 Qb7 Bb6 Qc7 Qed3+ Kd1 Qh1 c2 Qac4 Qb7 Kd8 Bd4 Qca6 Bc3 Qa1 Qa6 Qh2 Qc4 Rb2 Qd5 Ra2 Qh5 Ra3 Qh7 Qg2 Rb5 Bd4 Rc5 Ra5 Nc4 Rb5 Nca5 Rb7 Nd5 Rc7 Ne3 Qda6 Qf7 Bd3+ f1Q Qc4 Qe1 Nf1 Qh7 Qca6 Nd5 Bh6+ c1Q Bb1 Ne3 Qh2 Qc2 Qhe2+ Kc1 Qac4 Qd3 Qd5 Qa6 Qdc4 Qb7 Qcd3 Qc8+
k3n3/BrPb1r1Q/1Q6/2q1b3/RbB1rNQB/Rn2Pp2/R3K2q/1Q2N2N w - - 0 1 illegal: No possible last move
2RQ3N/2Pb1qB1/2bNnrNP/p3Q2R/B1r1RQ1b/Nr5k/1K1n1q1B/8 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 b4 g5 h4 d5 f4 a5 b6 e5 b7 e4 h6 d4+ Kb2 e3 c4 g4 h7 d3 b5 d2 c6 e2 b6 e1R c5 g3 h5 g2 h6 Bg7 c7 Re5 c6 Re8 Ne2 g1Q Ra4 Ra6 Nec3 Qd3 Ne4+ Kf7+ f6 Ke6 f5+ Ke5 f7 Kf4+ f6 Qd7 f8Q Qf7 Na3 Bg4 c8R Qf2 Bb5 Bd7 Nd6+ Kg3 Rh5 Re3 Re4 Kg2 Qe2 d1B Qd8 Ba4 Bd2 Bf8 Bc3 Be7 Bd4 Rc3 Be5 Rc4 Bh2 Qf8 f7 Bh4 Be5 Kh3 Bg7 Qe8 f8N Qef7 Ng6 Nf6 Qd2 Rf8 h8N Ra8 Qe2 Na6 b8B Nc7 b7 Ne6 Bc7 Ra7 b8Q Rb7 Qd2 Bc2 Qf4 Ba4+ Re2 Ne4 Qe5 Nd2 Re4 Qe8 Qf4 Rf6 Qe5 Bb3 Ba4 Qf7 Qf4 Rbb4 Qb5 Rc3 Qbe5 Rbc4 Bb6 Bd1 c7 Bf3 Bd4 Qf1 Bg1 Qf2 Bh2 Re3 Rd4 Bfc6 Re4 Rb3+
Q3NRB1/2PKrpN1/1qn1NP2/Rr1B3R/2n2Q1B/3b1q1Q/1qk3b1/1R3b2 w - - 0 1 illegal: No possible last move
q7/pb1R1B1Q/2BK4/bQr5/1PrknNr1/q1N2Pn1/Q1qN2RR/1RB5 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 c5 d4 h5 g4 h4 b4 c4 f3 h3 d6 c3 Kd5 e4 d7 c2 b6 e3 g6+ Kf6 g5+ Ke7 b7 e2 g7 e1R g6 Kf6 Rh2 Qb6 d8N Re4 Ne6 Bc5 Nf4 Nd7 b8Q Rh4 Qd2 Qa5 Nge2 Rh5 Nec3 Re7 Qb5 Nh6 g8Q Qa3 g7 Bb6 Qh7 Nc5 g8B Ne4 Bf7 Ba5 Qde2 Rc7 Nd2 Ba6 Rb1 Rg8 Qec4 Rg3 Qa2 Rg4 Rg2 h2 Bd3 Nd6 Be4 h1Q Rh2 Rc4 Rg2 Kg5 f6 Bb7+ Ke6+ Nhf5 Bc6 Ne4 d5 Qe1 d6 Qd1 Ke5 Nfg3 d7 Qg1 d8R Qh2 Bb2 c1Q Rd7 Qc2 Bc1 Qh4 Bfd5 Qh2 f7 Qg1 f8R Qb6 Rb8 Qd8 Bf7 Qg8 Qh8 Qf8 Kd5 Kf5 Re8 Rhg5 Re6 Qa8 Rh6 Rg8 Rhh2 Rc8 Qh7+ Kf6 Ng6 Kf5 Ne5+ Kf4 Nd3+ Ke3 Nf4 Rc5+ Ke6 Rc4 Bd5 R8c5 Bc6 Nf2 Kd6 Kd4 Be4 Qab2 Bed5 Qa3 Bc6 Nfe4+
nr1QN2N/1N2KrrB/2q1n2r/1k1P1RPQ/2pB2rb/4RB2/R1B5/4Qb2 w - - 0 1 illegal: No possible last move
2n2Q1B/qP1K2nQ/1R4N1/2RB2b1/1NR1pBb1/2NP3b/QB4rr/b5kb w - - 0 1 illegal: No proof kernel
bKQR1Q2/8/3r1N1n/2q3r1/1bnB1BB1/b1PrQpPN/kN6/bR2RN2 w - - 0 1 illegal: No proof kernel
1k1K1Q2/2nR2Bb/2Bn1bR1/1q1QNN2/4rP1r/p3B2n/3R3P/2nNrQ1N w - - 0 1 illegal: No possible last move
3RbN2/r3K2Q/k1B4R/nnn3Rr/pB2P1N1/Qn2N1Pr/3R3b/1q1BQ3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 c5 d4 Kc7 e4 Kb7 b4 h5 g3 a5 e6 h4 Ke5 h3 g6 c4 e7 f4 e8B f3 b6 f2 d6 h2 d7 c3 Ke6 c2 d5 Qc7 b5 Rh3 d6 Rh4 g7 Qc5 Bd2 c1N Be2 f1R Nc3 Na6 Nh3 Ra7 Nd5 Qa3 Qe1 Qb3 Bb4 Be7 Nf2 Bf8 Ng4 Qf3 Bd1 Rh3 Nde3 Ne7 g8Q Nb3 Qh7 Nc6 Ra2 a4 Rd2 Be7 Rd5 Nca5 Rg5 Bf6 Kf7 Rh5 d8R Nc7 d7 Bd4+ Ke7 Qe2 Bc3 Qd3 Bb4 Kb8 b7 Qb1 Bf7 Rf6 Bd5 Rfh6 Bc6 Bb6 Rdg8 Rh3 d8R R6h5 Rd2 Bd4 Rd8 Bb6 Rf1 h1N Rf6 Nf2 Rh6 Nd3 Re6 Ra8 Rh6 Ka7 b8N Ndc5 Nd7 Ba6 Nf8 Bc8 Rc2 Bd7 Rd2 Be8 Ng6 Nd3 Nf8 Bd4 b6+ Ka6 b7 Ra7 b8Q Nb5+ Qc7 Ndc5 Qd7 Ncb7 Qd6 Bb6 Nc2 Bg1 Nce3 Bh2 Qd3 N3c5 Qa3 Nab3 R8d4 N7a5+ Rd7 Nc7 Rd8 Nb5+
2b1r1kn/bnq4n/5b1r/R2bQ1PQ/1BQ1p1BP/N5B1/N6Q/K3RN1R w - - 0 1 illegal: No proof kernel
nkB1N2b/1N2RQ2/4Q1Q1/1KBPPr2/1N3nR1/1b1n3p/1R3nr1/B1Q3rq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 e4 f5 Ke2 a5 Kd3 h5 Kc4 c5 g4 Kc7 d4 h4 g6 a4 g7 a3 b6+ Kb7 e6 h3 d6 a2 b5 f4 g5 f3 d7 f2 e5 Qc7 d8Q Qd7 e7 Rh6 e8N Qd6 d5 Qe6 g6 Qc6 Bb2 Ra7 Qe7+ Bd7 Qe6 Ne7 g8Q Bg7 Qc1 Bf8 g7 Ra8 Qgf7 Rg6 g8Q Rg2 Nf3 Ng6 Ng5 Nf4 Nc3 Bg7 Rg1 Bh8 Qgg6 Na6 Nge4 Kb8 b7 Nc7 N4d6 Qb6 Bd3 f1N Bf5 Ng3 Rb1 a1R Na2 Qa7 Nb4 Ne4 Bc3 Qa3 Rb2 Nf2 Bd4 Qf3 Bg4 Ka7 b8R Qe4 Rd8 Bc6 Rd7 Kb8 b6 Ba4 b7 Bb3+ Kc3 c4 Re7 R8a2 Bf5 Rg5 Rg4 Qh1 Bc5 Na8 Kd4 Bc2 Kc3 Rh5 Kd4 c3 Kc4 Bb3+ Kb5 c2 Bd4 Nb6 Bc3 Ka7 b8B+ Ka8 Qe1 c1N Ba7 Ncd3 Nb7 Rg5 Qe3 Rg1 Qc1 Rh5 Qc6 Rg5 Bc8 Rh5 Qce6 Rf5 Rb1 Re2 Ba1 Rc2 Rb2 Re2 Bb8 Rd2 Bd6 Rc2 Nc7+ Kb8 Bc5 Na8 Ne8 Ne4 Nd8 Rcg2 Nb7 Nef2
1knQ3b/3KRbq1/r1Q1BQ2/3pr2N/1B2PNRN/2nB2P1/8/b1n1NR1b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 d5 Ke3 Kd7 Kf4 Kc7 c4 h5 b4 f5 e4 a5 g6 h4 g3 h3 c6 h2 g7 a4 e6 a3 Ke5 a2 c5 f4 e7 f3 e8Q f2 Bd2 Ra7 Bd3 f1B Nf3 Rh4 Nc3 Rb7 Ne1 Na6 b6+ Kb8 b5 Rh8 c7+ Ka8 c6 Nf6 g8N Nh5 Qf3 Rh6 Ne2 Be6 c8N Bf7 c7 Bc5 Qf6 Be6 Nce7 Ng7 c8B Nc7 Nf4 Qd7 Nf5 Kb8 Nh4 Nf5 Bb4 Qg7 Qc6 Bf7 Be6 Bg2 Rf1 h1N Rb1 Ra7 b7 Ne7 Rb2 Bb6 Kd6 a1B Kd7 Ra6 Rbf2 Bbd4 Rf3 Ka7 b8R Rh5 Re8 Nc8 b6+ Kb8 b7 Re5 Re7 Nb5 R3f2 Bf3 Rh2 Nf2 Rhh1 Rb6 Rh3 Bh1 Rh2 Ka7 b8Q+ Ka6 Nhf3 Rf5 Rh4 Na7 Bc4 Qh8 Qh6 Nd3 Bb3 Nc1 Rg4 Nc3 Qd8 Nc8 Nh4 Ka7 Nf6 Ra6 Bc4 Kb8 Bd3 Qh7 N6h5 Bh8 Qg5 Re5 Qf6 Qg7
1Q1r1n2/1N1QN3/2K2Rr1/2P1rq2/kn4RP/2bQ1b1B/1RpN1n2/Bn3QB1 w - - 0 1 illegal: No possible last move, all moves rejected
4n1rk/1nQ2Qb1/K2N2R1/P2b1R1B/RBr1N1np/1nb5/P4BR1/N3q2Q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 Kg7 Kc4 h5 Kb5 e5 d4 c5 g4 e4 f4 b6 d6 e3 g6 c4 f6+ Kh6 f7 Kg7 f5 e2 g5 e1B d5 c3 d7 c2 d6 Rh7 f6+ Kh8 Rh4 Rh6 g7+ Kh7 Nf3 Qc7 d8Q Bg4 d7 Qa7 Nd4 Ba3 f8Q Bb2 f7 Nf6 g8R Ne8 Nb3 Be6 N1d2 Na6 Ne4 Bec3 Qc7 Bd5 d8N Rc6 Be2 Nc5 Qh1 Nb7 Be3 c1N Rg6 Nd3 Bf2 Ne5 Rf1 Ng4 Na1 Rc4 Qfe7 Bg7 f8B Bc3 Qf7 Kh8 Bb4 Qb8 Bd1 Qc8 Be2 Qe6 Bd1 Rc8 Ka6 Qe7 Be2 b5 Bf3 Nh2 Rf4 h4 Bh5 Ng4 Rf5 Qe5 Rb1 Rb8 Rb3 Qg3 Ra3 Qg1 Ra4 Qe1 Nd6 Rc8 Ne6 Rd8 Nc5 Rb8 Ba3 b4 Nce4 b3 Bb4 b2 Rgf6 b1N g6 Bh6 Re6 Nd2 g7+ Kh7 g8R+ Bhg7 Rg6 Nb3 Rfg5 Nh6 Rg2 Ng4 Rf8 Rd8 Qf3 Rb8 Rf5 Kh8 Qf4 Nef6 Qf7 Rg8 Qe5 Ne8 Qee7 Qd2 Qc7 Qe1
N1R5/2Q1r1n1/1bPB2PK/B2BR2r/1BprqR1n/n2Q2NQ/5nb1/kN6 w - - 0 1 illegal: No proof kernel
R1R1nQ2/3rQPbb/1NNnr1N1/B3b3/3N2r1/6p1/1P3BRQ/kr1Bq2K w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 Kf2 Kd6 Kg2 Kc5 d4+ Kb4 h4 e5 d6 c5 d7 g5 d5 a5 h6 a4 h5 e4 b6 c4 h7 c3 h6 c2 d6 Kb3 f6 e3 f7 e2 b7 e1B f5 g4 f6 a3 Ne2 g3 Nd2+ Ka4 Rh2 a2 Kh1 Ra7 Nd4 Qa5 d8N Bd7 Rg2 Na6 b8R Bg7 f8Q Nc5 f7 Bf5 d7 Nb7 Qe2 Nf6 Rc8 Nd6 N8c6 Rg8 h8N Nfe8 d8B Bh7 Ng6 Rd7 Nc4 Bc3 Be3 c1R Bf2 Re1 Qee7 Re6 Be2 Qe5 Ba5 Qe3 Rc1 a1R Ra8 Rb1 Bh5 Be1 Rc2 Bc3+ Bd1 Qe5 Ne2 Kb3 Nb6 Ka2 Ned4 Qe2 Rc1 Ka1 Rc2 Be5 Rc1 Rg7 Rc2 Bg8 h7 Qe3 h8Q Bh7 Nh4 Rg4 Ng6 Bg8 Qh2 Bg7 Nf3 Bce5 Nfd4 Bh7 Nb8 Nf6 Rc8 Nfe8 Nbc6 Qe1+
6QK/N3PPRn/1B2Nn2/2NQ2p1/2n1b2R/r2N1r2/Qb1k1B1b/q3RB1b w - - 0 1 illegal: No proof kernel
2bBQNN1/2qpr1k1/1nQ2R2/P1r1n1r1/Qb3R2/1r3P1K/RBN3B1/1nN5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 h4 Kf7 c4 g5 a4 b5 h6 e5 f3 g4 Kf2 b4 Kg3 b3 c6 e4 h7 b2 c7 e3 a6 e2 c5 e1R a7 Qe7 f6 Kg6 h5+ Kf7 c6 Re3 h6 Rb3 a5 Bg7 Ra2 Re3 Na3 b1N Bb2 Kf8 f7 Bc3 Rh4 Re1 Bg2 Qd8 Ne2 Na6 Nc2 Bb7 c8Q Bd2 c7 Rb8 a8Q Bb4 Nc1 Nc5 Kh2 g3+ Kh3 Re5 Rf4 Na4 Qd4 Ba6 Qc6 Nf6 Qde4 Rg8 h8B Nb6 h7 Ng4 Bf6 Re7 h8R Ne5 Rh6 Rg5 Qa4 Bb7 Qec6 Rf5 Bg5 Kg7 f8N Ba6 Rf6 Bb7 Bf1 g2 Bh4 g1R Bg2 Ba6 Bg5 Rb7 Qa8 Qb8 c8N Qc7 Bh4 Rg5 Qb8 Rd1 Qa8 Rd5 Qb8 Re6 Ne7 Rc5 Qe8 Rb8 Ng8 Bc8 Rh6 Rgg6 Be7 Rg5 Bd8 Re7 Rhf6 Na8 Ng6 Rbb5 Nf8 Nb6 Ne3 Ba3 Nc2 Rb3 Qd5 Bb4 Qe6 Rcc3 Qec6 Rc5
B1Nb1k1N/P1P1rBn1/4b1n1/K5b1/1Q1B4/4Nr1R/pQ1R4/NRQr1r1q w - - 0 1 illegal: No proof kernel
4qr1k/2R1NQ2/R1K2rQ1/2bN1PB1/3P1p1q/2bnQ3/1BbnB3/1R1Bb1N1 w - - 0 1 illegal: No possible last move
R1B2rk1/NRNQ1b2/1b2Nrp1/q4B2/2K1Q2b/Q1n1P3/2PB3b/q1Qn3R w - - 0 1 illegal: No proof kernel
1nn3rK/n2k1NQ1/pB1n4/q6R/4QRR1/P1q1PnRN/1NB4b/Q1B1r3 w - - 0 1 illegal: No possible last move
2qRQBNb/Bk3N2/3RnB2/2PNQ2q/1q1p2r1/3P1nK1/2B1r2Q/5Rnq w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 Ba6 a4 Bb5 axb5 Rh7 Ne2 Rh6 Ng1 Rh8 f4 e5 Kf2 g5 c4 d5 h4 Kd7 h6 Kc8 b6 a5 c6 e4 c7 d4 b7+ Kd7 c8N Kc7 h7 g4 c5 e3+ Kg3 a4 f6 b3 h5 a3 f5 b2 f7 e2 f6 e1N h6 a2 Bd3 Ra4 Nh3 Qd7 Bc2 Na6 b8B+ Kb7 d3 Ne7 Bg5 Rg8 h8Q Bg7 f8R Nc7 f7 Nf3 h7 Ned5 Nc3 b1Q Qd2 Nf4 Bf6 Qb4 Ng5 Nce6 Nd5 Nh3 Qh2 Nhg1 Nce7 Qc8 Rf1 a1Q Ba7 Qd1 Rd8 Ra2 f8B Qe2 Nf7 Qe5+ Nf4 Qh5 Nfd5 Rb2 Bb1 Re2 Bc2 Bh6 Rd6 Rg5 Qg8 Bg7 h8Q Rg6 Qhh7 Rg5 Qf5 Bh8 Qe5 Nc7 Kf4 g3 Qg6 g2 Ng8 Rf5+ Kg3 Rf4 Qge4 Rh4 Qe8 Ne6 Qe5 Nh3 Rf2 g1Q+ Rg2 Qc1 Rf1 Nhg1 Rd8 Ree4 Re2 Qch6 Ree1 Re2 Ra1 Rf4 Ra6 Qh7 Rad6 Rfe4 Qg2 Qh1 Qf2 Q7h5 Qh2 Rg4#
QRQK4/B1q1r2N/1qBP3R/b1q3N1/Qpb2q1R/1P4r1/2nBR1N1/3b1k2 w - - 0 1 illegal: No possible last move
NNr4k/1B1B4/Rp1Q4/B1RN1nRr/1PK1P2q/bn1qQq2/5Q2/3nB2n w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 h3 a5 b6 a6 Bb7 axb7 Bc5 gxh3 Be7 h4 Ba3 h5 Bf8 h4 g5 e4 f5 Ke2 Kf7 Kd3 Kg7 h6+ Kh7 h5 a5 e6 c5 d6 g4 e7 f4 e8B a4 d7 a3 Qe1 g3 Qe3 f3 Ne2 g2 Rg1 a2 Nec3 f2 Kc4 Ra5 d4 Ra8 d5 Qe7 d8R Ra3 d6 Nd7 b8N Qe6+ Nd5 Qg4 Nbc3 Ra5 Nb5 Qh4 Nbc7 Ndf6 d7 Ne7 Na8 Ng4 Bd2 Nf5 Be1 Rb5 Bd3 f1Q Rc8 Nf2 d8Q Nh1 Qd6 Qf3 Bd7 Rg8 b3 Kh8 h7 Be7 Rc7 Rc8 Rc6 Bg5 Qf2 Bc1 Bf1 Ba3 Be2 Kg7 h8B+ Kg8 h6 Ra5 Rd1 a1N Bhc3 Nc2 Ra1 Kh7 Bcd2 Kh8 h7 Rb5 Ba5 Nce3+ Kc3 c4 Rc5 Nh6 Kd4 c3 Ra2 Nd1 Kc4 c2 Qe3 c1N Bd3 Kg7 h8Q+ Kf7 Ra1 Nf5 Qb2 Kg8 Qbf2 Kh8 Be2 Qfg3 Bg4 Qf3 Bc6 Kg7 Bb7 Kh8 Rf1 g1Q Ra2 Ng7 Bd7 Qgg3 Rg1 Qgh3 Rg5 Nf5 Bab4 Bb2 Ra6 Ba3 Ba5 Qh3g3 b4 Nb3 Nc3 Qgh3 Rc7 Re5 Rc5 Qf1+ Qed3 Q1e2 Nd5 Qd2 Qde3 Qc3+ Kb5 Qd3+ Rc4 Qhf4 Rg7 Nh6 Rg4 Rh5 Rg5 Qd4 Rc2 Qh4 Rc5 Qd2 Kc4 Nf5 Qee2 Qde3 Qd3 Qd2 Qde3 Qd3+
2B5/B1nNR2R/2rBp1Nq/qRnb3Q/1q2Q1R1/n3P1QP/3k2r1/2q2K1N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e6 cxd5 b4 f5 b3 f6 Be7 fxe7 Bd7 axb3 Bc8 b4 Kd7 b5 Qf8 Bh3 Qe8 Bf1 Qd8 e8R Kd6 b4 Ke5 d4+ Ke4 h6 g5 b6 f5 b5 c5 h7 a5 b7 a4 e3 g4 d6 g3 d7 a3 b6 a2 d5 f4 d6 g2 Ba3 c4 Re7 c3 Nf3 g1N Ba6 c2 Ne5 c1Q Kf1 Qc3 Qh5 Qf8 d8Q f3 d7 f2 Qc7 Qb4 d8Q Nf3 Nd7 Nf6 Qg3 Rg8 h8N Ne8 Ng6 Nc7 h3 Ne1 Rg1 Qf4 Rh7 Nc2 Qdh4 Qb3 Be7 Qb4 Bd6 Na3 Re7 Nc4 Q4g4 Kd3 Nd2 Qh6 Ne4 Kc2 Rd1 Na3 Rd5 Kc1 Rb5 a1Q Rg2 Qac3 Qgf5 Qa5 Qd5 Qcb4 Qd3 Nc6 b8R Nd4 Rb7 Nb3 Ra7 Rb8 b7 Nc5 Qdd5 Ra8 b8B Bb7 Qde5 Bd5 Bc8 Kc2 Rab7 Ra6 Ba7 Kd3 Qgg4 Rf8 Rh7 Qaa4 Nb8 Rf6 Ng3 Ne8 Nh1 Kd2 Qee4 Qaa5 Rbe7 Nc7 Nd7 Rc6 Qgh4 Rf7 Rg4 Rf3 Kg2 f1Q+ Kh2 Qa1 Kg2 Rg3+ Kf2 Qab2 Kf1 Rg2 Qg3 Qc1+
4bQqN/2RNR1b1/k1p2b2/1r6/2NB1bnq/2PBP2B/2r3QK/1R1q2QN w - - 0 1 illegal: No possible last move
1R1Rb3/3KQ3/k1n2NB1/BN1p1r2/R1qP1b2/1b5N/BbrPBQ1Q/2r2r2 w - - 0 1 legal: proof: h4 b5 e4 g5 hxg5 f5 exf5 b4 c3 b3 axb3 Nc6 b4 Nd4 cxd4 Bh6 b5 Bf8 Ke2 h5 Kf3 c5 Kf4 a5 Ke5 e6 f4 h4 b4 h3 g4 h2 g6 c4 g5 a4 b6 c3 b7 c2 b8R a3 b5 a2 b6 Be7 b7 Ba3 f6 Nh6 g7 Ra7 g8B Ra8 f5 Bb2 Kd6 e5 g6 e4 g7 e3 Bh7 e2 g8B e1B Be2 Ng4 Nh3 Ra5 Nc3 Ne5 Nb5 Bg3 Qf1 Bf4 Qf2 Qe7+ Kc7 Qb4 f7+ Ke7 Rg1 h1B f8N Bd5 Bg6 Bf7 Nh7 d6 Rg2 Bce6 Nf6 Bb3 Rd8 Rh5 b8Q Nc6 Rg1 Qc4 Rb1 Bc3 Ba3 c1R Bb4 a1R Re1 R5a3 Ba5 Bb2 Rg1 R3a2 Rg3 Ba4 Ra3 Bb3 Ra4 Rg5 Ng4 Rf1 f6+ Ke6 Kc8 Kd5 Kd7 Rf5 Kc7 Be6 f7 Rc1 f8Q Bf7 Kd7 Rf1 Rd1 Rc1 Re1 Ba1 Qe7 Rac2 Bd3 Bc3 Re3 Ba1 Be2 Bb2 Rd3 Qb4 Nf6+ Kc4 B8h7 d5 Qbd6 Be3 Qdh2 Bf4 Nc7 Ba2 Ng8 Rf6 Be4 Rc3 Bhg6 Rf5 Nf6 Rb1 Nce8 Kb5 Nd6+ Ka6 Re3+ Rc4 Rb3 Rbc1 Bb1 Qc3 Rbb8 Bb3 Nb5 Qd3 Qhg2 R4c2 Ba2 Qc4 Qh2 Be8+
7b/Nn3Q2/1BbrQ1qk/1N2nK2/R3nR1r/3B2p1/R1P1bNpP/3Q1BN1 w - - 0 1 illegal: Other
1bQ1B2N/2b3Kr/1BR3N1/2Pp2P1/2qRbn1R/p3N3/r1n3Q1/Bnk1B1Q1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 c4 e6 b4 a4 g4 a3 f4 h4 g6+ Kg7 b6 Kh6 c6 h3 c7 h2 b7 Qd7 f6 Ra4 b5 Rh7 c5 Qd8 f7 Ra5 f5+ Qg5 b6 Rb5 g7 Bd7 c8R Qd2 f6 Kg5 Rc6 Na6 b8Q Rh3 b7 Rb6 Qc8 Rh7 b8B Rb2 Bb5 Nb4 Nc3 Nc2 Bc7 Ra2 Nge2 Ne7 Nf4 Qd3 Qg1 Qc4 g8Q+ Bg7 f8B Ng6+ Kd6 e5 f7 e4 Bb6 e3 Bd2 e2 Nd1 e1B Ne3 Bf2 Be1 Bf5 Rd1 Bg3 Rd4 Be4 Ke6 Be5 Bg7 Bc7 f8N Bb8 Kf7 Bc7 Nd3 Nf4 Ng6 Bb8 Nh8 Bc7 Qg2 Bb8 Rg1 h1N Ne5 Nf2 Neg6 Nd1 Rh1 Nc3 Rh4 Nb1 Rd3 Rh5 Ba1 Rh7+ Qg7 Nh3 Rd4 Bgc7 Rd6 Nf4 Be8 Qd3 Rc6 Qc4 Qg1 Ng2 Nf8+ Kf4 Nfg6+ Kf3 g5 Ke2 Kf8 Nf4 Qgd7 Qb3 Qh3 Qb5 Nf5 Qd3 Qhg2+ Kd1 Ne3+ Kc1 Kg8 Qc4 Kf8 Rh6 Kg7 Rh7+
4B3/3N4/RbR1K1np/2Q1Nb2/P1Nq1r1Q/2r1nB2/k2n1Pp1/1RB1NQb1 w - - 0 1 illegal: No proof kernel
R3B1b1/q1N1K1k1/1Bnp1nP1/b1Q1Q1Q1/p1N2R1B/2rr1Qn1/P3R3/4b2N w - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Na6 dxe5 Qg5 hxg5 Nb8 Kd2 Kf7 Kc3 h5 Kd4 b5 Kd5 a5 c4 h4 f4 g3 e4 h3 g6+ Kg7 e6 g2 c6 b4 f6+ Kh6 c7 a4 c5 b3 e7 d6 e8Q b2 f7 h2 f5+ Kg7 c6 Rh3 e5 Rh8 e6 Ba6 c8Q Rh3 c7 Rh8 e7 Rh4 Ke6 Rh3 f6+ Kh8 Na3 b1Q Qd2 Bd3 Qg5 Ba6 Nc4 Nc6 Ne2 g1B Ng3 Qb2 Be3 Qe2 Re1 Qc2 Re2 Ra7 Bb6 Bh6 f8Q Qb1 f7 Qc2 Bg2 Nb4 Bc6 Bf2 Rf1 Be1 Nh1 Rd3 Rf4 Qc1 Kd7 Qe3 Kd8 Bb5 Qcf5 Qf2 c8R Rc7 Qc5 Bg7 Ra8 Bgc3 Qd7 Qd4 e8N Qg7 Qfe7 Nf6 f8B Ba6 Qdg4 Qh7 Ng3 h1N Qf3 Bc8 Qee4 Be6 Be7 Bg8 Qee5 Qf7 Bb5 Rc6 Nc7 Kg7 Ne4 Ng3 Nf2 Na6 Nh1 Nb8 Qa3 Rc5 Be8 Ba5 Qb4 Rcd5 Qb5 Rc3 Qc5 Rdd3 Qgg4 Kh6 Nb5 Nh7 Bh4 Qa7 Nc7 Nf6 Qgg5+ Kg7 Ke7 Nc6+
2B1br2/N1b2N1r/2PP1R2/qQb1p3/1NR4n/2p4n/Q1rR4/QRBK2kB w - - 0 1 illegal: No proof kernel
3R2N1/r4bpK/6n1/RQQRP2P/Q2rN1Bk/4B1qp/1N1B3r/b1n3Nb w - - 0 1 illegal: No proof kernel
kr1B2K1/3P2r1/n3N1Q1/1B1N4/nR2bQQb/2r1R2B/1b1Ppp1N/1q2R2Q w - - 0 1 illegal: No proof kernel
1BBQBr1N/2np4/4R3/b1R1K2N/b2nQR2/pr2PN2/r3kPq1/2Qb3B w - - 0 1 illegal: No proof kernel
4R2b/1k1prp2/2b4K/r4NRR/BBQn4/BQ4NP/P3nQ1B/1nq2Nr1 w - - 0 1 illegal: No proof kernel
2B2N2/1Qp1bkb1/3BN2P/1R2RP1r/3R1nQ1/1K2Bb1Q/1Nr1pBr1/n1q5 w - - 0 1 illegal: No possible last move, all moves rejected
B1R2RQN/2prQ1Q1/2n1qNNp/3r1P2/1b2rn2/1N2BK1b/PR6/1n1k2B1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 g4 e5 d4 b5 f4 e4 g6+ Kf6 a6 h6 a7 b4 d6 b3 d5 e3 d7 b2 d6 Qe7 d8Q Nd7 g7 Ne5 g5+ Kf7 f6 Ke6 d7 Kf5 g6 Kg4 f7 Qe6 Nd2 b1R Nb3 Bb4 f8B Rh7 Nh3 Ne7 g8Q N7c6 g7 Bb7 Rh2 Be7 Qd4 Kg3 Bg2 Bc5 Qe7 Nb4 d8N Ned3 Nf7 Re8 a8R Nc6 Rc8 Bb4 Nh8 Rd8 f5 Rd5 Nf4 Ba6 Nfg6 Nf4+ Kd1 Rb2 Rb1 Kf2 Be4+ Kf1 Re2 Rc2 Rb2 Rc3 Rg2 e2+ Kd2 Rc4+ Ke3 Ke1 Kf3 Bb7 Be3 Ba6 Qdf6 Kd1 Qef7 Rcc5 Bg1 Ne7 Rh2 Rd4 Rd2+ Ke1 Ba8 Re4 Rdd8 Nc6 Rg2 Rc1 Bfc5 Rd1 Rf8 Rd5 Bce3 Kd1 Qd7 Bd3 Qgf7 Bb5 g8N e1N+ Kg3 Bc4 Rb2 Nc2 Kf3 Na3 Qfd8 Rg7 Nf6 Bf1 Qg8 Nb1 Q8e8 Re7 Qef7 Bh3 Qfg7 Rf7 Qd6 Rd7 Qc5 Qe5 Qce7 Qe6
2R3b1/3QQbn1/3QB1k1/BnK3q1/RpnQ4/qPNR3B/PpNr4/6Nr w - - 0 1 illegal: Other
q4Bb1/1n1r3k/R1Q1n2p/PBNN2B1/3p2r1/bBP3N1/3QbR2/QK1R1q2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 a4 Kg7 g4 d5 f4 b5 f6+ Kg6 c3 e5 Kc2 h6 c6 d4 f7 b4 f5+ Kg7 f6+ Kh7 a6 e4 c7 e3 a7 e2 Nd2 e1Q Kb1 b3 Ne2 b2 Nb3 Qf2 Ng3 Bd7 c8Q Qe8 Nc5 Na6 Qc6 Qfe3 Qd2 Qf3 Bb5 Be6 Rd1 Be7 f8B Qg2 f7 Rb8 a8Q Nf6 Ra2 Rg8 g6+ Kh8 g7+ Kh7 g5 Rb7 Ra3 Rd7 Ra2 Nc7 Qaa6 Rh8 g8N Qa8 Qa5 Bd6 Ne7 Qf1 Nd5 Ne4 Ra3 Rg8 g6+ Kh8 g7+ Kh7 Qf2 Be7 Bg5 Nd6 Qd2 Nb7 Ra1 Bg4 Qa7 Be2 Qa5 Rh8 Qa7 Ne6 g8B+ Kg6 Bg7 Bd6 f8R Be7 Bf7+ Kh7 Qaa6 Rg8 Ra2 Qa7 Ra8 Qb8 Bf8 Qd8 Ra7 Qa8 Qa5 Rg7 Ra6 Bd6 Qb4 Rg8 a5 Rg6 Qa3 Rg8 Kc2 b1B+ Kb2 Bf5 Kc1 Bfg4 Kb1 Bc4 Rc2 Bge2 Qa1 Rg6 Bge7 Rg4 Bg5 Bb3 Nb4 Ned8 Ne6 Re4 Qe3 Bh5 Rf2 Be2 Qd2 Bd5 Nc2 Rh4 Ne3 Ba3 Nc5 Rg4 Be6 Bg2 Bec4 Bd5 Bb3 Bg8 Nd5 Ne6
n2N4/k1BN3b/1rRP3K/BQ1B2BR/2Q4b/3q1n2/Qp3RPp/1qr2N1q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 b5 Kg4 e5 Kh5 c5 d4 Kc7 a4 Kb7 f4 c4 a6+ Kb6 a7 c3 g6 c2 a5+ Ka6 g7 e4 d6 h6 d5 e3 f6 e2 f7 e1Q f5 Qc3 f6 Qc4 d7 b4 Bg5 c1Q Qb3 Kb7 a6+ Kb6 Nd2 Be7 f8B Qb1 f7 Qc5 Ra2 Qcc2 Ngf3 Rh7 Ne5 Nc6 Bc4 Qd3 Nf1 Rb8 a8R Nd4 a7 Nf3 Rf2 Qe8 d8N Bf5 Qb2 b3 Rh2 Bf6 Bd6 Ne7 g8Q Nc8 Bb4 Qb5 f8B Rc7 Bfd6 Bh7 Nd7+ Ka6 Be1 Rb6 Ba5 Rc5 Qa2 b2 Bc7 Rcc6 Bb3 Rc1 d6 Qa4 Bd5 Qad1 Rh4 Qe1 Rc4 Qed1 Rc6 Be7 Kg4 h5+ Kf4 h4 Rb8 h3 a8Q+ Kb5 Qb7 h2 Kg4 Bf6 Kh5 Qe1 Kh6 Qed1 Ng3 Qh1 Nf1 Be7 Rc3 Bf6 Qc6+ Ka6 Qb5+ Ka7 Rc6 Rb7 Qe6 Nb6 Qg4 Be7 Qgc4 Na8 Rc8 Rb6 Rb8 Ra6 Rbb6 Bf6 Rc5 Be7 Rbc6 Rb6 Be3 Bf5 Bf7 Be6 Rh5 Bf5 Bd5 Bh4 Bg5 Bh7
1nr4k/q1R2B2/3p1N2/bBBKnNR1/2qpQr2/1P2N2P/2q1b1B1/R1Q1Q3 w - - 0 1 illegal: Other
Q1N5/1R2n1B1/r1Bp1KQ1/3P2R1/1QNN2p1/b5qR/q2RPqk1/2Bb2nr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qa5 c4 Qc7 c5 Qd8 Kf2 Ke7 Ke3 Ke6 Kf4 Kd5 Kf5 a5 c4+ Kd4 h4 g5 e6 g4 b6 f6 c6 d6 b7 a4 h6 a3 c5 a2 h5 Qc7 h7 Ra6 h6 Rb6 Rh5 Rb3 Na3 Bg7 Qe1 Nd7 b8R Qb7 e7 Qa8 e8Q Qb7 c7 Rb6 c6 Ra6 Qg6 Qb3 Rg5 Qg3 Nc4 Ne7+ Ke6 f5 Nf3+ Ke4 Rb7 Kf4 Bg2 Bb2 Nd4 Ne5+ Kf6 Bd7 c8Q Nf3 c7 Ba4 Qa8 Ba3 c8N Ng1 Bc6 Bd1 Rab1 a1Q R1b2 Qa2 d3+ Qe3 Qb4 Kg3 Rc2 f4 Rd2 Re8 h8B f3 h7 f2 Bg7 f1Q+ Qf5 Qff3 h8R Kg2 Rh4 Rh8 Rh3 Qfe4 Qg6 Qg3 Nb3 Rh4 d4 Rh5 d5 Qee3 Nd4 Qgf2+ Rf3 Qc3 Qb3 Rh1 Qb4 Qe1 Rh3 Qcg3 Qgb1 Qf1+ Qf5 Qfe1 Qg6 Qef2+
1r1NbQ1b/1N2Qq1p/R1Q5/R1Bp1qq1/3Pr1nk/3P2Nn/6BB/2BK1R2 w - - 0 1 legal: proof: d4 g5 h4 f5 hxg5 b5 a4 c6 axb5 Qb6 e4 Qc7 exf5 Qg3 Qd3 Qf3 Qd1 Qd3 cxd3 Bb7 Qc2 Ba6 Qd1 Bc8 f4 Kf7 b4 e5 g4 d5 b6 a5 b7 c5 g6+ Kf6 g7 a4 b5 a3 b6 a2 g5+ Kf7 f6 Kg6 f7 e4 Nc3 e3 Qa4 c4 Kd1 Nf6 g8Q+ Bg7 f8B Na6 b8B Kf5 g6 Kg4 b7 Kg3 f5+ Kg4 Ne4 c3 Bh2 Rb8 Bc5 Nc7 Qc6 Ne6 Bg2 Kh4 Nd6 Nf4 Qge8 Bd7 Qe7 Nh3 Ne2 Rhe8 Ng3 Bh8 g7 e2+ Ke1 c2 g8R Ra8 Rf1 Rab8 Rg5 Ng4 f6 Ng1 f7 Nh3 Qf8 Re4 Qe7 Be8 f8Q Rc8 b8N Rd8 Rb1 a1Q Nb7 Qa7 Ra1 Rc8 Ra5 Rd8 Na6 Rb8 Nd8 Qb7 Bb4 Qd7 Nc5 Qf5 Ncb7 Qf7 Kd2 Qf5 Bc5 Qf7 Kc3 e1Q+ Kb2 Qef2 Rg6+ Q2f6 Kc3 Qg5 Rgf6 Qf5 Kd2 Rf4 B1a3 c1Q+ Ke2 Qe3+ Kd1 Re4 Bc1 Qg7 Qcd7 Qef4 Rfa6+ Q4g5 Qc6 Qgf7
k1B5/Nn2Qp2/1R4K1/n2p3n/N1rPR1bN/Q1bqB2P/qr3B2/B4R1Q w - - 0 1 illegal: Other
1R1B1Q2/2Pn2N1/1r1P3Q/BQ1Bp1b1/b3pR2/2q1KnRN/Rr2N2q/1k1r4 w - - 0 1 illegal: Other
5r1q/1QPrR3/2RpB2Q/k1K1PNn1/1R2bN2/b5Bp/rq3N2/N2B1Qn1 w - - 0 1 illegal: No possible last move
2BB3b/Q7/P1pPB3/rR1qRN2/3Q1Rb1/N3pN1N/r5rQ/nn1r1k1K w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kf7 h4 Kf6 d4 e5 f4 b5 Kf2 g5 Kg2 e4 h6 c6 d6 b4 h5 b3 h7 b2 a6 g4 h6 g3 a5 Qb6 d5 Qb5 d7 Bg7 d8Q+ Ne7 d6 Qb6 a7 Na6 Nf3 Qb3 Qc7 Qb5 Qd4+ Qe5 Rh5 Ng8 Kh1 Nb8 a6 Bd7 Na3 b1R Bc4 Bc8 Be6 Rb3 Rb1 Re3 Rb5 Ne7 Bd2 Re2 Ba5 Rg8 h8N e3 h7 Ra2 Nf7 Nd5 h8Q Nd7 N7g5 Nc5 Nh3 Rb8 a8B Nc3 Qa7 Nb1 Bb7 Nb3 Rg5 Bd7 Bc8 Na1 Qh4 Bh8 Rh5+ Kg7 f6+ Kg6 f7 Qd5 f8R Rg7 Re5 g2+ Kg1 Rg8 Bd8 Rg7 Kh2 g1R+ Qf2 Rc1 f5+ Kh5 f6+ Rg5 f7 Rd1 Rc5 Rb4 Rb5 Ra4 Qfd2 Ra5 Qf2 Rdd2 Kh1 Rd3 Qh2 Rdd2 Re4 Rgg2 Rf4 Rd3 Re8 Rdd2 f8N Rd3 Bg8 Bg4 Ng6 Rdd2 Ne7 Rd1+ Ne1 Kh4 Bge6 Qc4 Ref8 Qd5 R8f5 Rc1 Re5 Rd1 Qg1 Kg3 Nf3 Rdd2 Nhg5 Rd3 Qh2+ Kf2 Nh3+ Kf1 Nf5 Rd1
1BNN2b1/3n1QNB/p1R1n2r/6Q1/rQ2pRN1/2b2B2/kP2r1RP/3rq2K w - - 0 1 illegal: No possible last move
1n2N3/1P2RPn1/QBQ1N1K1/1Q5B/n6k/R1rb2RN/p2n1q1p/1N3Bbr w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 b4 h5 d4 e6 g4 a4 d6 a3 b6 h4 g6+ Kf6 b7 h3 g7 h2 d5 c4 g5+ Kf7 f6 Kg6 f7 c3 d7 c2 b5 Qe8 d8Q Nc6 b8Q Ne5 b6 Rh5 d6 Bd7 Qf3 Ne7 g8B Rh3 Qc6 Kh5 g6 Ng4 g7 Bc8 d7 Kh4 Be3 Ba6 Qdc8 c1N d8N Nf6 Nb7 Nb3 Nd6 Bd3 Qa6 Nd2 f3 Qd8 Ne8 Nd7 b7 Nf5 Bb6 Bc5 f8N Rg3 Nh3 Qf6 Qe5 Nb8 Bf7 Bg1 g8R Ng7+ Qf5 Qb2 Qfb5 Qa2 Ke5 Ra7 Kf6 e5 f4 e4 f5 e3 Bg6 e2 Ne6 e1N Bh5 Qc2 Kf7 Qc5 f6 Qf2 Ra2 Re3 Rb2 a2 Rb3 Re4 Kg6 Rc4+ Qf5 Rc1 f7 Ra8 Ra3 Rc3 Qab5 Ra4 Qa5 Rac4 Qa6 Rc1 Be3 R4c3 Bb6 Bc4 Qfb5 Nd3 Nf6 Re1 Re8 Nc5 Re7 Na4 Ne8 Qf4 Qcd5 Bd3+ Qe4 Be3 Rg1 Rd1 Rg3 Bc5 Bfe2 Rh1 Bf1 Be3 Nd4 Bg1 Ne6 Bc4 Qed5 Qf2 Qdc6 Bd3+
Q1R1N2r/R1q1b3/1N1Bprn1/1RB2Q1n/5N1P/3Kp1kB/Qr2P2N/q6q w - - 0 1 illegal: Other
RRq3BB/RQ1QqQb1/1p1p1r1k/1P1Pb2q/8/1K1Nr3/1N2n1b1/1N2Q1B1 w - - 0 2 legal: proof: e4 f5 exf5 h5 g4 a5 gxh5 a4 c4 a3 bxa3 Nc6 a4 Nd4 a5 Nb5 cxb5 Rh7 Bh3 Rh6 Bf1 Rh8 a4 Kf7 f4 e5 d4 c5 Kd2 g5 Kc3 Kg7 h4 b6 f6+ Kh7 h6 g4 f5 c4 f7 g3 h5 d6 f6 g2 a6 e4 a5 e3 a7 e2 a6 Bf5 Nh3 g1B Be3 Bd3 Nf4 Qc8 Qe1 Bg6 Nd3 Qh3 Nb2 Be7 f8Q Qh4 f7 Bg5 Qd8 Rb8 a8Q Be7 f8Q Nf6 a7 Bh2 Bg1 Be4 Qb7 Be5 a8R Bg2 Qdd7 Re8 R1a7 Ne4+ Kc2 c3 Kb3 c2 Qf7+ Bg7 d5 c1Q Rh2 Bf3 Bh3 Bg2 Be6 Rhf8 Rh3 Qc8 Re3 Kh8 h7 Ng3 Re4 Qh1 Rea4 Bef6 Rb8 Bd4 Raa8 Re7 R4a7 Bc3 Qf4 Rf6 Bg8 Be5 Qff2 Bf8 Qff5 Kg7 h8N Qh4 Ng6 Kh6 Nf4 Bg7 Nfd3 Ree6 Qf7 Re8 Q5d7 Qh3 Qb4 e1Q Qh4 Ne2 Qe4 Kg5 h6 Qh5 h7 Kh6 h8B Bc3 Qeg4 Re3 Qe4 Qeh4 Qb4 Qe4 Qa5 Qe7 Qb4 Bd4 Qe1 Be5
NqQn3R/q2Bk2r/3r4/1b1R1Rr1/3n1p2/Q1n1p3/K3BPPQ/NN3QB1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 Kd2 f5 Kc2 c5 Kb3 a5 g6 e5 g7 h5 b6 c4+ Ka2 c3 b4 h4 b7 c2 d7+ Ke7 b5 e4 b6 h3 d6+ Ke6 d5+ Kf7 Be2 a4 Qf1 h2 Nf3 a3 Nd4 Ra7 Nb3 Ra6 Bf4 Qe8 d8R c1R d7 e3 d6 Nf6 g8B+ Kf8 Be6 Nc6 b8N Na7 b7 Nc6 Bg3 Rb6 Na6 Ne4 b8Q Rc5 Nc7 Rh7 Na8 f4 Qa7 Rcb5 Bh3 Kf7 Qa5 Qe7 Rh8 Rc5 d8Q Rg5 d7 Ba6 Qc8 Bb5 d8Q Qa7 Bd7 Qb8 Rg1 h1N Bh2 Nhg3 Rh1 Nf5 Bg1 Nfd4 Rh5 Ra6 Qdb6 Nd8 Qh6 Rd6 Qa7 Rg3 Rf5+ Ke7 Qh2 Rgg7 N1d2 Rg4 Rd1 Rg5 Nb1 Nc3+ Ka1 a2 Qa3 N4c6 Rdd5 Nd4 Kb2 Qa7 Na1 Qb6 Rhf8 Qb8 Rh8 Nb3 Qaa6 Na5 Nc2 Nac6 Ka3 a1Q+ Kb3 Qa5 Na1 Qab6 Qa3 Q6c7 Kb2 Qca7 Kb3 Nd4+ Kb2 Nd1+ Ka2 Nc3+
k1K5/4R1b1/P3b2B/1p1qR1QB/2pN4/rNQ2r2/QP2nqbB/Rr4RN w - - 0 1 illegal: No proof kernel
3R2qN/3n1pb1/NbN2Q2/2N2Q1B/BR1KpQ2/k4rR1/1rqBPPb1/q7 w - - 0 2 legal: proof: c4 a5 b4 h5 a4 b5 axb5 d5 cxd5 a4 g4 Nc6 gxh5 Na5 bxa5 Ra6 Nf3 Ra7 Ng1 Ra8 d4 Kd7 Kd2 Kd6 Kc3 c5 h4 g5 h6 e5 h7 g4 b6 a3 b7 e4 b8N a2 h5 g3 a6 g2 a7 c4 h6 Bg4 Bd2 Qc7 Nf3 g1Q Qc1 Qd7 Rh3 Ne7 Ne5 Nc6 Na6 Rd8 a8B Qh2 Bg2 Nb8 Bc6 Rc8 Ba4 Bf5 Nc6 Rd8 Rg3 Rc8 Bf3 Qd8 Bh5 Rg8 h8Q Bg7 Qh7 Bh3 Qf5 Nd7 h7 Bg2 h8N Qg5 Be3 Qg6 Nd2 Rb8 Rb1 Rb2 Nb3 a1Q Bd2 Qh7 Nbc5 Rgb8 Rd3 Qg8 Rg3 R2b3+ Kc2 Rd3 Rb4 c3 Kb3 c2+ Kc4 Qg1 Rb5 Rd8 Ne6 Nc5 Bb4 Rf3 Qcf4+ Be5 Bd2 Qgd1 Rb3 Rb8 Rb6 Kd7 d6 Bg7 d5 Qdb1 Bc3 c1B Ba5 Bcb2 Bd2 Bbd4 Rb5 Rb6 Rb3 Kc8 d7+ Kb7 d6 Qc2+ Kd5 Rb4 d8Q Rb5 Qdf6 Kb6 d7 Rb4 d8R Nd7 Ne7 Ka5 Rb2 Bb6 Nec5 Rc3 Rb1 Rb5 Kd4 Rb3 Nb8 Kb4 Nec6+ Ka3 Na6 Rf3+ Rb2 Rbc3 Rb4 Rb3+ Bc3 Rb2 Be1 Nb8 Bd2 Nd7
k3qRN1/2p3p1/2n5/1rR2Nbb/PQ1K3Q/1QrBBb2/1rPN3q/RN5B w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 Qh4 g4 Qf6 gxh5 Qd8 e4 Ke7 f4 Ke8 e6 Ke7 Nd2 Kd6 e7 Kc5 Nb1 Kc6 f5 Na6 e5 Nc5 Qd3 Rh6 Qd1 Ne6 fxe6 Rh8 Kf2 b5 Ke3 Kb7 e8N d5 a4 f5 h4 f4+ Kd4 f3 a6+ Ka7 h6 f2 e7 b4 h7 b3 h5 b2 h6 Kb8 a7+ Kb7 e6 Qd6 Nf3 Qa3 Bd3 f1Q Be3 Qf2 Qe1 Qh2 Nfd2 Rb8 Nd6+ Ka8 e8R Bb7 Nf5 Be7 Rf8 Bg5 e7 Qa2 e8N Ne7 Nf6 Nc6+ Kc5 d4 Ng8 Qf7 Rg1 Bh4 Rg5 Qe8 Rh5 Bg5 Kc4 Nd8 Qh4 Bf3 Qf4 Kb7 a8B+ Ka7 Qd6 Rb5 Qb4 Kb8 Bd5 Nc6 B5e4 Ka8 Qb3 Be2 Bh1 Bf3 Nfe7 Bf4 Rc5 Bg5 Nf5 Bh5 Nc3 b1R Kd5 Rg1 Ncb1 Rg3 Rf6 Qe7 Bf4 Kb7 Bf1 Rc3 Be3 Bg6 Bd3 Qd7+ Ke4 Ka8 Ne7 Rhb8 h8Q Qf2 h7 Rb4 Rf8 Qh2 Ng8 Qe8+ Qe6 Bf7 Nfe7 Rb2 Qb3 Bh5 Kd5 Bg4 Ke4 Qeh5 Nf5 Qe8+ Nge7 Be2 Qhg8 Rb5 h8Q Bg4 Qgc4 Bd1 Qh4 Bh5 Kd5 Bf3+ Ne4 Bh5 Qcb4 Bf3 Ng8 Bh5 Bf1 d3 Be2 d2 Bd3 d1B Ned2 Ne5 Ke4 Bdf3+ Kd4 Nc6+
B1q1q3/rp1BN3/3R1b2/2PNBQ1p/5QR1/Rr1K1B2/bPQ1nb1N/k4r2 w - - 0 1 illegal: No proof kernel
1R1N1r2/bp1b2p1/rN2P3/3n2kn/BQ1b2B1/K1N3Pn/1Qr2BR1/1R1RQ3 w - - 0 1 illegal: No proof kernel
2KbB1Rn/2b2b2/7Q/B1p4Q/1P1pN1R1/4R2N/1nP2qRQ/rbknNB2 w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 g5 fxg5 e4 h4 e3 g6 Ne7 dxe3 Nbc6 e4 Nb8 e5 Ng8 g4 a5 g5 Bc5 h5 Ra6 g7 Rg6 hxg6 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 c5 b4 h5 e3 h4 e6 h3 b6 a4 b7 a3 e7 a2 Kd6 Ke4 Qe1 f5 Bd2 h2 Nh3 f4 Rg1 h1N Rg2 f3 Qc1 Nh6 g8R f2 g7 Nc6 b8Q Ne5 g6 Nd3 Rg4+ Kf3 e4 Nb2 e5 Bb7 e6 Bd5 Bc3 Bc4 Nd2+ Ke3 Rb1 a1B Be5 Ba2 Bh2 Qe8 Kc7 Qf7 e8B d5+ Kc8 Be7 Bc7 Bd8 e7 Qf8 Bb6 Nf7 Qh2 Rh4 Ba5 Nh8 Rg2 Rf4 Rg4 Rf6 Rg2 Ra6 Rg4 Qf3 Rg2 Qe2 Nf3+ Qd2 Ne1 Ra7 Bc4 f1B Rg4 Bg2 Bf1 Bf3 Rg2 Bh5 Rg4 Nf2 Rg2 Nbd3 Rb3 Be5 Rc3 d4 Ra3 Ke4 Rb3 Qe2 Qh6 Nb2 Rbg3 Bf4 Rg4 Ke3 Rf8 Kd2 g8N Bf7 g7 Ba2 Nf6 Bb1 g8R Kc1 Ne4 Nfd1 Rf6 Qe3 Re6 Qf2 Nd2 Nf7 Beb5 Be3 e8Q Beg5 Bb6 Bc7 Re3 Ra1 Ne4 Nh8 Ba5 Bh4 Qf7 Bf6 Be8 Bfd8 Qf5 Bg6 Qfh5 Bf7
1B1n2N1/K4R2/q2r1Q2/pb3B1B/P2QR1p1/kNnR3b/4bbP1/2NNq1Q1 w - - 1 2 legal: proof: d4 e5 c4 b5 b4 g5 h4 a5 f4 c5 bxc5 Qe7 fxe5 Ba6 c6 Bb7 c7 Be4 c5 Bf5 d5 Qf6 h5 Qg6 hxg6 Ke7 Kf2 h5 Ke3 d6 Kd4 f6 c8B h4 e4 h3 a4 b4 e6 h2 g7 b3 c6 b2 c7 Bg6 e5 f5 Nc3 b1B Nge2 f4 Ra3 f3 Bf4 f2 Nc1 Bh7 Be2 f1Q Bh5 Qa6 Re1 h1Q Re4 Nf6 Qg1 Bd3 Nd1 Bb5 Rd3 Bf5 Bd7 Bh3 c8R g4 Rc7 Rh6 g8N+ Kd8 Bc8 Rg6 e7+ Ke8 Bf5 Nc6+ Ke3 Nd8 Kd4 Kf7 e8N+ Be7 e6+ Kf8 Ng7 Rb8 Re2 Ne4 Rd7 Nc3 Re4 Bh4 e7+ Kf7 Ne6 Rb6 Nc5 Bf2+ Be3 Rc6 N5b3 Ke8 dxc6 d5 Kc5 d4 c7 Kf7 c8Q Ke8 Qc6 Kf7 Qh2 Qe1 Qg1 Ke8 Bf4 Kf7 Rde3 d3 Bb8 d2 Qf6+ Ke8 Qd4 Kf7 Rd3 Ke8 Ne3 d1B Rb7 Be2 Nd1 Bg3 Rb6 Bf2 Rf6 Nc6 Rf7 Rd6 Bh7 Kd7 B7g6 Qc8 Kb6 Nd8+ Ka7 Kc6 Bf5 Bh4 Qf6 Bg3 Nd4+ Kc5 e8Q Kb4 Qee5 Ka3 Ndb3 Bf2+ Qd4 Qa6#
3n4/B1p2q1R/BQ1N2KQ/n1qn3P/1pP1B2k/Br4Rn/3RN2Q/5rbN w - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 a5 gxh5 b6 f4 a4 e4 a3 f5 Bb7 bxa3 Rh6 a4 Bd5 a5 Be6 fxe6 Rh8 Kd2 Ke7 Ke3 f5 Kf4 d5 Kg5 b5 h4 b4 a4 d4 a6 g6 h6 f4 a5 f3 a7 f2 h7 d3 a6 d2 Qe2 d1Q Ba3 Q1d5 Nc3 Qb7 Nd1 Qe8 Ra2 Kd8 e7+ Kd7 e6+ Kd6 e5+ Kd5 h5 Qd8 Rh3 Qb6 Rg3 Qd7 e8N Qdc6 e7 Ke6 Nd6 Qd7 e8Q+ Ne7 c3 Qbb5 Rd2 Nc6 Qb8 Nd8 Qb6 Qc5 Qe3 Nec6 Ne2 Rg8 h8B Na5 Bf6 Rc8 a8Q Qf7 a7 Rg7 Kh6 g5 Qh1 g4 a8B Be7 Bb7 Ra8 Bfg2 f1N c4 Ra7 Qf4 Ne3 Bge4 Nd5 Nf2 Rg5 Qc1 Rf5 Nh1 Ra6 Qg1 Ra8 Qfe3 Rf1 Ba6 Ra7 Qh2 Ra8 Rf3 g3 Bh8 g2 Rg3 g1N Bg7 Qf3 Kg6 Nh3 Qh6 Bg5 Bf6 Be3 Bg5 Bg1 Be3 Ndc6 Bf2 Re8 Bd4 Nd8 Bf2 Ke7 e6 Rf8 Bd4 Qf2 Be3 Rf3 Qb8 Qb5 Ba7 Rb3 Qb6 Qbc5 Nb7 Ke8 e7 Kd7 Nd6 Ke6 Nc1 Qf8 e8R+ Qe7 Rh8 Ke5 Qg7+ Kf4 Rh7 Qd7 Rf3+ Kg4 Qh6 Kh4 Rg3 Qe7 Ne2 Qf7+
kb1KB3/2p1R1Q1/4BNN1/5r2/N6B/RbPq1N1P/1rrr1qp1/3QR1Qn w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 f4 Ke7 e4 Qe8 e6 Kf6 e7 Ke6 e5 Qd8 Kf2 Nc6 Ke1 Nd4 f5+ Kd5 Bd3 Kc5 Bf1 Ne6 fxe6 Kb4 Ke2 Kc4 Ke1+ Kc5 Kd2 Kb6 Kc3 Kb7 Kb4 a5+ Kc5 f5 b4 g5 h6 d5 b6 f4 h3 g4 h7 g3 b5 a4 Ra3 d4 Nf3 d3 Nc3 d2 Bc4 g2 Re1 Bh6 e8N Ne7 Nf6 Rf8 h8N Rb8 Ng6 Nf5 e7 Ng3 e8R Qd3 e6 Ka8 Kc6 Nh1 e7 Be6 Bb3 Bd5+ Kd7 Bg5 Bc4 Bh4 Bb2 Bf2 b7+ Ka7 Rc8 Bg1 e8B Bc5 Kd8 Bg1 Nd7 Rf5 Nf6 Bf2 Re7 Bb6 Qg1 d1R Bc1 Bd4 Bd2 Bc5 Be1 Rd2 Bh4 Bb6 Ra1 a3 Na4 a2 c3 Bd4 Rae1 a1R Ba2 Rc1 Bb3 Bc6 Be6 Rcc2 b6+ Ka6 Ra1 Bd5 Ra3 Bf2 Ng5 f3 Qd1 Ra8 b8Q Rb2 b7 Ba7 Qg1 f2 Qd1 f1Q Nf3 Qf2 Qg1 Bd4 Qd1 Ra7 Qa8 Rbc2 b8Q Bb6 Qc6 Rb7 Qd7 Ba7 Qg1 Rbb2 Qb3 Qc4 Rb8 Qd3 Rb4 Bb8 Re4 Ka7 Re1 Rc1 Qd1 Rcc2 Qd6 Kb7 Qg3 Ka8 Qg5 Rb5 Qh6 Rbb2 Qg7 Bb3+
B1QB1Q2/Rn1P4/NRQpR1qB/P2b2Nr/3k4/1pb5/3nn1p1/NK1Nr3 w - - 0 1 illegal: No proof kernel
4R1Kr/q2pb1Nn/P5rQ/1pR2Q2/NP4n1/QN4pN/b1R1Bb2/1B2k1B1 w - - 0 1 illegal: No possible last move
1RK1R3/B1pbNrk1/6r1/NQ1Q1nR1/1QP1q2n/N1bNpB2/2p3nP/1B6 w - - 0 1 illegal: Other
1BQN3n/1pr1p2B/R1Q5/1nr1b2n/R3q1bp/4KBkN/2PQPN1R/2R5 w - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 bxa5 Nf6 f4 Ng8 fxg5 Bh6 Nf3 Bg7 Ng1 Bf8 g4 Nh6 h4 Ra7 g6 Bg7 g5 Ra8 h5 Bf8 g7 Qb6 Kd2 Qe6 Ke1 Qg6 hxg6 Ng8 Kf2 f5 a4 d5 a6 Kd7 c6+ Kd6 c7 Ke5 a5 h5 a7 h4 a6 d4 Qd2 d3 Bg2 f4 Rh2 f3 Nh3 Kf5 Ke3 Kg4 Nc3 f2 Nd1 f1Q Bf3+ Kg3 Ndf2 Nh6 g8B Nd7 g7 Nf6 g6 Bg4 c8Q Bf5 Qc6 Bg4 Bh7 Rd8 g8Q Nf7 a8R Qg2 a7 Rc8 g7 Nh5 Ba3 Rc7 Rc1 Nd8 Qge6 Nf7 g8N Bg7 Qc8 Be5 Nh6 Rg8 Bb4 Rg5 Bd6 Nh8 Nf7 Qh1 Nd8 Rf5 Rb8 Rg5 a8R Qg2 Qd1 d2 Ra6 Qh1 Qe1 Qg2 Rba8 d1N+ Kd3 Rf5 Qd2 Nc3 Ke3 Nb5 Ra4 Rf4 R8a6 Rc4 Bc5 Qh1 Ba7 Rc5 Bb8 Qd1 Qb4 Qd5 Qd2 Qe4+
Q2K4/3R1q1Q/np2pbBp/r1bBqN2/1PP5/1kBQ1RN1/rN5Q/R6n w - - 0 1 legal: proof: e4 c5 d4 f5 exf5 g5 dxc5 b6 h4 Nc6 hxg5 Nd4 a4 Bb7 a5 Nc6 a6 Nb8 axb7 Qc8 Na3 Qc7 Nb1 Qd8 Kd2 Kf7 Ke3 d5 Kd4 a5 Ke5 h6 g4 a4 b4 d4 f4 d3 c4 d2 g6+ Ke8 Ke6 a3 f6 a2 g7 Qd3 c6 Na6 b8Q+ Qd8 f5 Ra7 c7 Ra8 c8N Rh7 g5 Rh8 g6 Rh7 Nc3 Qd4 f7+ Kd8 f6 Qf4 Bb2 Qf3 Na4 Ra7 Bc3 Ra8 Nb2 Qg2 Qh2 Qf2 Nd6 Kc7 Ne2 Kc6 Qb1 d1Q Ng3 Qh5 Qd3 Qb5 Rd1 a1B Ndf5 Qa5 Bg2+ Kc7 Bd5 Ra7 Ke5 e6 Rhf1 Be7 f8Q Bc5 f7 Nf6 g8Q Ne4 g7 Qf3 Qh8 Nf2 Kf6 Nh1 g8B Rg7 Qe8 Rg5 f8R Qh5 Bh7 Qf7+ Ke5 Rh5 Bg6 Rg5 Qh7 Ra8 Nh5 Rg2 Nhg3 Rf2 Na4 Ra2 Nb2 Nf2 Bf3 Be3+ Qd5 Ne4 Be1 Nb8 Nd4 Qd7 Na4 Nf2 Kf6 Nh1 Rd3 Bc3 Nb2 Bf2 Qe4 Kd6 Qd8 Ra7 Qa8 Qh5 Bd2 R7a5 Ra1 Na6 Rf7 Bg1 Bfe4 Qd5 Rf3 Qh5 Re7 Qg5+ Kf7 Ke5 Bb7 Qf4+ Ndf5 Bc5 Be4 Qb7 Qd3 B3d4 Ke8 Qd5 Nd6 Qf7+ Kd8 Bc3 Rd7 Qd4 Qf1 Qe3 Bd5 Kd4 Qd1 Qe1 Na4 Qe3 Ndf5+ Kd3 Qf1+ Kc2 Nb2 Kb3 Qb1 Bg7 Bc3 Qe5 Qd3 Bf6+
1Qqk3n/B2p1R2/B2Pq1p1/N3bbP1/K1R2p2/N3Qr2/3Q4/bNrN2RB w - - 1 2 legal: proof: f4 b5 a4 c5 axb5 e5 fxe5 g6 h4 c4 h5 c3 h6 Na6 bxc3 Nc7 c4 Ne6 c5 Ng7 hxg7 Qg5 Ra5 Qf6 Ra1 Qd8 e4 h5 c4 f5 d4 a5 Kd2 f4 Kc2 a4 g4 h4 c6 a3 Kb3 a2 e6 h3 b6 h2 c5 Ba6 b7 Qh4 b8Q+ Ke7 g5 Qh7 e5 Nh6 g8B Ng4 d5 Bb7 c7 Bh6 c8R Ba6 c6 Ra7 c7 Be2 Nh3 Bd3 Qd2 Qf7 Nf2 Rh7 Nd1 Qe8 d6+ Kf8 e7+ Kg7 e6 Rb7+ Ka4 Bf5 Ba6 Qd8 e8N+ Kh8 e7 Bg7 Bd5 Rb3 Bb2 Rbh3 Bd4 Nh6 Ba7 Nf7 Rg1 Kg8 Bh1 Nh8 Re1 Kf7 Re6 Bb2 Rf6+ Kg8 Rf7 Rg3 Ng7 Bc3 Ne6 Rf3 Nc5 Be5 Nb3 Rh5 e8N Qf6 Qb6 Qe6 Na5 Rhh3 Qbe3 Rhg3 Rd8 Rg1 c8Q Rgf1 Qb8 Re1 Rh7 Kf8 Rc8 Ref1 Rc4 Rg1 Bg2 h1Q Re7 Qh7 Bh1 Qhf7 Nc7+ Qe8 Nb5 Qc8 Rf7+ Ke8 N5a3 Kd8 Nbc3 Rgf1 Rc1 a1B Ncb1 R1f2 Ndc3 Re2 Rg1 Re1 Nd1 Ref1 Nf2 Rc1 Nd1 Rc3 Bc5 Rc2 Ba7 Rc1
1B5n/R1R1Nk1K/pB3p2/2q2bq1/Q2q4/b1pP2r1/P1QQ2Q1/n2N1NRB w - - 0 1 legal: proof: f4 d5 c4 g5 fxg5 b5 cxb5 d4 h4 d3 g6 Kd7 exd3 Ba6 d4 Ke8 d5 Bc8 g4 a6 g5 Nc6 h5 Rb8 g7 Rb6 Kf2 Nb8 Ke1 Rg6 hxg6 Bd7 Bh3 Bf5 Bf1 Bc8 Ke2 h5 Kf3 c5 Kf4 e6 b4 h4 b6 h3 d6 c4 b5 c3 b7 f6 d7+ Ke7 b6 h2 Nh3 e5+ Kf5 e4 Bg2 e3 Qc2 e2 Nf2 e1Q Nd1 Nc6 b8Q Qg3 b7 Qf2+ Qf4 Na5 b8B Qe3 Qfa4 Rh6 d3 Qa7 Nd2 Bb7 Nf1 Bf3 Be3 Rh7 Bb6 Qdc7 d8R Nc4 Rc8 Qc6 Rc7+ Ke8 Rb1 Ba3 Rg1 Nd2 Bh1 Rh3 Rb4 Be2 Rd4 Nb3 Rdd7 Qaa8 Ra7 Rg3 Rdc7 Ne7+ Kf4 Nc1 g8N Bg4 g7 Nb3 g6 Bf5 Qd2 Na1 Qdc2 Nc8 Ne7 Nd6 Qd2 Qd7 Qdc2 Qd5 Qd2 Qf7 g8Q+ Qf8 Qgb3 Nf7 g7 Nh8 g8Q Qb5 Qbb2 Qd7 Qg4 Kf7 Qbc2 Qg8 Qf3 Qd4+ Qe4 Qc5 Qee2 Qd8 Qg2 Qdd4+ Qe4 Bh7 Bg2 Rf3+ Kg4 Bf5+ Kh5 Qe3 Qg4 h1Q+ Qh3 Qh2 Bh1 Qed4 Kh6 Qg3 Qhg2 Qgg4 Qh2 Rg3 Qhg2 Bd7 Kh7 Qgg5 Qc4+ Be6 Q4a4 Bf5+
1N2QRR1/pR4Q1/RBbP1rB1/2pk4/P4p2/1n2Qr2/4NBKb/N1rb3n w - - 0 1 legal: proof: e4 d5 exd5 b5 c4 g5 cxb5 Bf5 f4 Bg4 fxg5 Bc8 g4 Kd7 h4 Qe8 g6 Bh6 g5 Bf8 g7 Qd8 h5 Ke8 Qa4 Qd6 Qd1 Qg6 hxg6 Bb7 Ne2 Ba6 Ng1 Bc8 Kf2 Kd7 d4 Kd6 b4 c5 b6 e5 b5 h5 b7 f5 b6 e4 Kg2 h4 Be3 f4 Bd3 Be6 Qc1 Bc8 Nd2 Rh5 Bf2 e3 Ne2 Rh6 Nb3 Nc6 b8N Rh8 b7 Nf6 g8R Ne4 g7 Na5 g6 Be7 Rf8 Bg4 g8R Ng3 g7 Rh6 a4 Rf6 Rb1 Bd8 Na1 Nb3 Rh2 Nh1 Bg6 Ba5 Rb2 Be1 Qd2 Bf5 Qc1 Bc2 Rb1 Bd1 Qa3 Ke7 d6+ Ke6 d7 Kd5 d8B h3+ Kf3 Ke6 Bb6 Kd5 Rg2 h2 Rg3 Rf5 Kg2 Rh5 Rg4 Rh3 Rh4 Rf3 Rh6 Kd6 d5 Ke5 Bg1 Bg3 Bf2 Kd6 Nd7 Rc8 b8Q+ Rc7 Qb7 Rc6 Nb8 Ke5 Qc8 Rf6 Qe8+ Kd6 Ng1 e2 Rb2 e1R Ne2 Nc1 Qae3 Rf1 Rgh8 Nb3 g8Q Bc2 Qg7 Rc1 Rhg8 Bd1 Rh7 Na5 Rb5 Nb3 Ra5 Rc4 Be4 Rc2 Ra6 Rc1 Qb5 Ke5 d6 Ke6 Bg6+ Kd5 Be1 Nf2 Qbe8 h1B+ Kg1 Bh2+ Kf1 Ne4+ Bf2 Ng3+ Ke1 Kc4 Qgd7 Bg2 Qc7 Nh1 Rd7 Rg3 Rh7 Bc6 Kf1 Rf3 Kg2 Rf5 Qce7 Rf7 Q7e5 Rf5 Rb7 Rf7 Q5e7 Rf6 Qg7 Kd5
R3Bk1B/1npbN1q1/bR3n2/2P1n1Np/1Q2pKN1/4P1n1/r4RQ1/1Q1R2B1 w - - 0 2 legal: proof: d4 b5 f4 a5 a4 g5 axb5 e5 fxg5 e4 g4 Ne7 h4 Na6 h5 Nb4 g6 Na6 g5 Nb8 h6 Bg7 hxg7 Ng8 Bh3 Ra6 Bg2 Re6 Bf1 Re5 dxe5 Qf6 Qd5 Qe7 Qd1 Qd8 Kf2 f5 Ke3 h5 b4 d5 c4 a4 b6 d4+ Kf4 d3 e6 d2 e7 a3 b5 a2 b7 Bd7 b6 Ba4 Rh2 Na6 b8R Bd7 b7 Bc8 Rf2 Qd5 Nc3 Nf6 g8N Qa5 g7 Qa3 g6 Nd7 Nh3 Ndc5 Bb2 Rh6 Qb1 d1N Nd5 Nc3 Ng5 Nd7 Ne3 Nf6 Ng4 Nb4 Ra8 Nc6 b8B Qa6 Ba7 Ne5 Be3 Qa4 c5 Qd4 Rb8 Rh8 Rb6 Bd7 Bh3 Nb5 Bc3 Nd6 Qb4 Nb7 Rd1 a1N Qb1 Nb3 Ba1 Bc6 Bb2 Kd7 e8R Nd2 Ne7 Nf1 g8Q Ng3 Qc4 Rf8 Ra8 Rf7 Ra7 Ke8 g7 Bd7 g8Q+ Rf8 Qg7 Rh8 Qg6+ Kf8 Ra8+ Be8 Rdf1 Na5 Rab8 Nh7 Nh6 Nh1 Ngf7 Nec6 Rg2 Rg8 Rd1 Qf6 Bg1 Rg7 Ke3 f4+ Kd2 f3 Ke3 f2 Ra8 f1B Bd7 Qe5 Qb4 Nb7 Qg5 Qc3+ Kf4 Qd4 e3 Ba6 Qg3 Rg6 Qf3 Rg5 Rgd2 Rg2 Ng5 Ng3 Ng4 Qh8 Bf6 Ne5 Rb2 Qg8 Bh8 Qg7 Ra2 Rc2 Qg2 Nf6 Bb5 Rc4 Rf2 Rc2 Bc4 Ra2 Bf7 Nd8 Bg6 Bd7 Be8 Nb7
r2R1bn1/PknB3n/1np1R1QB/4NR2/1Nbp1K2/Q3p3/Q3P2B/2Nq3N w - - 0 1 illegal: No proof kernel
1b1Nr3/5QB1/1K1pRnq1/1BP1rN2/2Q2r2/3p1n1k/RRQP1p2/2RN1rB1 w - - 0 1 illegal: Other
1R1Qn3/1p2b3/kPn5/NbP1qN1B/R1B1p3/2RK2rN/1pQ2Bn1/4QnN1 w - - 0 1 illegal: Other
NB2k2N/1pbN4/bq6/1R1R2B1/QRKbB3/3pQ1br/1P1P1p1b/1N1n2Q1 w - - 0 1 illegal: Other
1Br4r/8/1n2K2R/1N1n2p1/kbqB1PN1/BR2QpRP/2p1bQp1/3BN2Q w - - 0 1 illegal: Other
6n1/2Qn1pr1/1RNB2Bk/2B1p3/1QPNP2N/6pp/Q4rRq/1bKB1nR1 w - - 0 1 illegal: No proof kernel
1rN1Q3/r1p2rB1/1pR2q2/bP3Kp1/Q1P4B/N3RQ2/kpN5/NR1B1nb1 w - - 1 2 illegal: Other
R1nBn1Q1/p5b1/3Q1R1N/bRQ1p3/1N4p1/rB2q3/bRP2pPN/2kB3K w - - 0 1 illegal: Other
6BQ/k1p1q2p/3B4/n1R1bRQ1/Qp1bK1NP/rNBn2R1/p1Pn3B/5N2 w - - 0 2 legal: proof: d4 a5 g4 b5 a4 f5 gxf5 e5 dxe5 Nc6 Qd6 Ba6 Qd1 b4 b3 Bb5 axb5 a4 b6 a3 Be3 Ra7 Bc1 Ra4 bxa4 Nb8 Kd2 g5 Kd3 d5 f4 Kd7 h4 Kc6 e4 Kb7 a5 g4 a6+ Ka8 b7+ Ka7 e6 d4 e5 g3 e7 a2 e8N g2 e6 Bh6 f6 Qd7 f5 Qb5+ Ke4 d3 e7 d2 f7 Qc5 f8B Qb6 f6 Nd7 b8R Be3 f7 Nh6 Rh3 Ng4 Rg3 Bf2 Nf3 g1B Nd4 Qh6 Rb5 Qd6 Nb3 Nh6 Qg4 d1N Nf6 Nb8 e8Q Bd4 Bb2 Qd8 Rc5 Bde3 Qa4 Qd2 Qg5 Ng4 Bc4 Qd8 N1d2 Bh2 Bd6 Qf8 Nf1 Ne5 Ng4 Nd3 Bc3 Nc6 Be6 Qg7 f8B Bd4 Bg8 Na5 Bf4 N1b2 B8d6 Nbc4 Rd1 Kb6 a7 Qe7+ Bfe5 Kb7 a8Q+ Kb6 Qf8 Kb7 Rd2 Ka7 Rf2 Nd2+ Kd5 Bg1 Rf5 Bgf2 Bf4 Be5 Qff6 Nb1 Ke4 Bfd4 Bc4 Rb8 Qh8 Rb6 Bg8 Ra6 Qd7 Nc4 Qe8 Ra3 Qa4+ Na5 Rg1 Qf8 Bh2 Qe7 Rg3 Nd2+
R7/1p1N3k/n1Nbp2b/BBQBpp2/1q1R4/PN1b2nr/R3P1Q1/Q2R2K1 w - - 0 1 illegal: Other
3BBB2/3NqN1R/R5pN/1p2Q3/r1Bp2Qr/pb1P1n2/2pK2P1/1knR1Q2 w - - 0 2 illegal: No proof kernel
Kb6/B1B2pr1/B3nq2/1qNRBRpN/r2Qn1P1/q4P2/Q2N3R/2k1bbQ1 w - - 0 1 illegal: No proof kernel
R4bQ1/pN1BQ3/q5p1/N3nbNK/P1qnB3/Q4rkb/1N2R1P1/2BRqr2 w - - 0 1 illegal: No possible last move, all moves rejected
1r1b1R1Q/p1rRBn1n/P1brR1Bk/R1N1Qp2/B4N1p/K3n3/4NP2/3Qq3 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 h4 Nb8 hxg5 Bg7 Be3 Bh6 Bc1 Bf8 Kd2 h5 Kc3 b5 Kb3 f5 g4 Kf7 a4 Kg7 c4 d5 e4 b4 c6 d4 c7 d3 c5 h4 a5 d2 e6 Qe8 e5 Nc6 e7 Nb8 c6 Na6 e6 Kh7 g6+ Kg7 g5 Bd7 c8Q Rh7 c7 Rb8 Nh3 Rb5 Qb8 Nf6 c8N Qf7 e8R Rb7 Ba3 Rh5 Bb5 Bc6 Ba4 Qc7 e7 Ng8 Nb6 Qc8 Qe5+ Nf6 Nf4 Nc7 a6 Bd7 Nc3 Nb5 Nce2 Bc6 Nd7 Rh6 Nc5 Rc7 Rh3 Qb8 Rd3 Nd6 Ka2 Nf7 Rd7 b3+ Kb2 Kg8 g7 Kh7 g8R Qb4 Rg6 Bg7 Rf8 Bh8 e8B Qc3+ Kb1 b2 Ka2 b1R Bb4 Qc1 Ba3 Rbb7 Bb4 Qb1+ Ka3 Rb8 Ra2 Qe4 Ra1 Qh1 Ra2 Qe1 Ra1 Nh5 Re6 Bf6 g6+ Kg7 Qd6 Bd8 Qe5+ Nf6 Ra2 Rh7 Ra1 Kh6 g7 Rh8 g8Q Rh7 Ra2 Rg7 Ra1 Rg6 Qh8+ Nh7 Nb3 Bd5 Be7 Bc6 Nc5 Rf6 Rb1 Rg6 Rb5 Rf6 Ra5 Rg6 Qc1 d1N Qca1 Ne3 Qd1 Nd6 Bf7 Rf6 Bh5 Nf7 Bg6 Bf3 Red6 Re6 Rd5 Reb6 R5d6 Ba8 Rf6 Rd6 Re6 Bc6
2Q1n3/1r2r2R/1q1R4/1pR2NQ1/3Q1p1b/1KN1B1p1/1B1B1PPN/nn1b1Bqk w - - 0 1 illegal: No proof kernel
2BR1N2/bR3rnQ/rbn2K2/kppBpb1N/2P1RqN1/6Q1/1B2PRqQ/8 w - - 0 1 illegal: No proof kernel
1n6/3Bkq1p/N2pbRpp/5Q1Q/1Bn1N1P1/R1KP4/rb2BN1R/3BQ1rn w - - 0 1 illegal: Other
3R1n2/3r1b1p/q1r4P/q1B1N3/3N1P2/nN2RBQ1/4N1B1/1RNk1rKN w - - 0 1 legal: proof: d4 c5 a4 a5 g4 e5 dxe5 b5 axb5 f5 gxf5 c4 b6 c3 bxc3 Bb7 Rxa5 Bd6 c4 Ba3 Rxa3 Ba6 Ra1 Bc8 e4 Ke7 f4 g5 Kf2 d5 h4 d4 c5 d3 c4 g4 h5 d2 h6 Qd7 c6 Qa7 f6+ Ke6 c5 Qf7 c7 Nd7 b7 Qg7 b8N Ra6 c6 Nc5 f7 Na4 f8N+ Ke7 e6 Kf6 e5+ Kf5 e7 Ke4 e8B Qf6 e6 Qg7 e7 Qg6 Nfd7 Qg7 Qf3+ Kd4 Ba3 d1R Qg3 Ke4 Bg2+ Kd4 Ne5 Qg6 Nc3 Bd7 c8R Ra5 c7 Bf5 Nbd7 Nb2 Rd8 Be6 c8N Bf7 Rh3 Nf6 Nd6 Nc4 Nc5 Nd7 Nde4 Qa6 Rb1 Ra4 Bb4 Na3 Na2 Rg8 Nc1 Rg6 Bf3 Rc6 Kg2 Ke3 Nf2 Rdd6 N5b3 Nf8 Nge2 Rd7 Nh1 Ra5 Bd6 Rac5 Kg1 Rc2 Qe1 g3 Bc5+ Rd4 Bd7 g2 e8N Ra2 Qg3 Rb2 Nc3 Rf2 Ng7 Qa5 Ne6 Qa6 Na1 Kd2 N3e2 Kd1 Nab3 Rdd6 N6d4 Rd5 Bdg4 Rd7 Bd5 Qa5 Qh2 Qa6 Re3 Qa5 Qg3 Qa6 Kh2 Qa5 Bgf3 g1Q+ Kh3 Qf1+ Bg2 Qa6 Kh2 Qe1 Bf3 Qea5 Kg1 Rf1+
3B2BQ/1R1r2n1/P2R1q2/1KNB1qk1/2bNrN1R/1N1N2P1/1q1q3N/1qq5 w - - 0 1 illegal: No possible last move
2K1q1Q1/4k3/NrbrB1RP/1NrBR2B/2N1nbBR/n2n4/1r1BPB2/1r6 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 d5 Kd3 g5 Kd4 f5 b4 a5 h4 f4 c4 a4 e6 a3 Ke5 f3 e7 g4 h6 d4 c6 g3 c5 d3 c7 d2 h7 f2 c6 a2 b6 g2 h5 Na6 h6 Qd7 b7 Qf5+ Kd6 Nf6 b8R Ra7 b5 Bg7 b6 Kf7 e8B+ Kf8 b7 Be6 c8B Nh5 c7 Bf7 Nc3 Bg6 Rh4 Qf7 Nb5 Nc5 Be6 Ra5 c8B Nd3 Nf3 g1R Ne5 Ng3 Nc4 Be4 Bg2 f1R Qb3 d1R Bd2 Bc6 Bgd5 Rf6 Rb1 Rg8 h8B a1N Bcd7 Rgf1 Kc7 Nc2 Kc8 Ke7 Bg4 Ra2 B7e6 Na3 Ra8 R1f5 b8N Rb2 Ra5 Ne4 Na6 Rc1 Ra1 Rcb1 Qa2 Bf8 Bg7 Rg6 Bd4 Rgf6 Bf2 Rgg6 B6d7 Rd6 B7e6 Bg7 Qb3 Be5 Qa2 Rh1 Rg1 Bf4 Rg3 Rhb1 Qb3 Qh7 B8f7 Rgf6 Bfh5 Qg7 Bf3 Qf7 Rg6 Ba8 Bfg4 Rb6 Bd7 Rfd6 B7e6 Bc6 Qc3 Be8 Qh8 Bc6 Qg8 Ng3 Bg2 Rc5 Bgd5 Ne4 Nbc7 Bb5 Ba8 Rcc6 Bb7 Ba4 Re5 Rc5 Bbd5 Bc6 Nb5 Qe8+
2n1BQKr/B2RPnN1/1B3NPB/b3k1n1/1n2qn1r/1N1B4/BrR2Rb1/8 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 f5 Kf4 c5 e4 h5 d4 a5 b4 c4 g4 c3 g6 h4 g7 h3 g5 c2 g6 a4 d6 Ke6 d7 h2 b6 a3 b5 a2 d5+ Ke7 Kg5 f4 e6 Kd6+ e7 f3 b7 f2 b6 Ra6 e5+ Kc5 d6 Nc6 b8B Ra5 b7 Ra8 e6 Nf6 e8B Rh6 g8B Na7 Bd3 Kd5 Nf3 f1N Nh4 Ke5 Qf3 Nd2 Rf1 h1R Rf2 Rh7 Nf5 R1h4 Ng7 Qe7 d8B Nc4 d7+ Nd6 Bd2 c1N Bb6 Ne2 d8R Nf4 Rd7 Nc6 Bde3 Nd8 Nd2 Ra4 Rg1 a1N Rc1 Ra2 B8a7 Rb2 b8N Nc2 Nb3 Nb4 Rcc2 Bb7 Bc1 Nc8 Bd2 Qf7 Bc1 Bc5 e7 Qc4 Be3 Qe4 Be6 N6d5 Bc1 Nc7 Bec4 Nh5 Qf8 Nf4 Ba5 Na2 B5b6 Ne2 Rd4 Bb4 Nd2 Qf3 Bd5 Ba5 Nd7+ Kd6 Bdf7+ Qd5+ Kf6 Nb4 Rdf4 Qc6 Ba2 Nce6 Nb3 Qc4 Bd2 Bg2 Rd4+ Qd5 Bh6 N2f4 Rdc4 Qe4 Rc7 Nb7 Kf7 Nbd8+ Kg8 Ng5 Rb7 Ndf7 Nf6 Ke5 Rd7 Rh8#
BB1K3R/1nB1R3/kb2B3/2n5/1qR5/1N2r1P1/1qrNbQnP/n1BBn2N w - - 0 1 illegal: No proof kernel
2nBnnRb/Q7/4RbbB/2NBr1q1/2b1KN2/r1B2PP1/3qRB2/1B2Nk2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 b4 Ke5 g3 Kd4 b6 c5 b5 e5 d6 a5 b7 h5 b6 a4 g6 c4 g7 a3 d7 h4 f6 h3 f7 c3 Bb2 h2 Ra2 Na6 b8N Be7 f8B Bf6 b7 Nc7 Ne2+ Kd3 Na6 c2 b8R c1Q Qa4 Rh5 Bc3 Ne7 g8B Ne8 Bh6 e4+ Kf4 e3 Bd5 Qa5 d8B Bf5 Bb6 Bg6 f3 Nc8 Rc2 a2 Na3 a1B Rb2 Bh8 Nc2 Rg5 Rg1 h1B Qd7 Bg2 Qa7 Bh3 Ra2 Bd7 Bh3 Bb2 Re1 Bb5 Bhe6 Bf6 Bg8 Bc4 Bh7 Ba3 Bbd4 Bf8 Rab2 B8g7 R2b6 Bh8 Re6 Ncd6 Rd8 Nc8 Bb6 Nc7 Rg8 Ne8 Ng1 e2 Bf2 Re5 Nh3 Qc5 Rg1 e1N Rg2 Qb5 Nc5+ Ke2 Rh2 Qd1 d4 Kf1 Rg2 Rf5+ Ke4 Qa5 Nf4 Nd3 Ne1 Qd2 Nd7 Rb8 Bb7 Bf7 d5 Re5+ Kd4 Ncd6 Bg1 Nc8 Re2 Nc5+ Bd3 Bh5 d6 Bg6 Be4 Rb3 Bf2 Ra3 Ba8 Qa2 Bb1 Qc2 Nb8 Qb5 Na6 Nd7 Bc6 Nf8 d7 Qa5 d8B Rh5+ Ke3 Qaf5 Bd5 Qg4 Re5 Rf5 Re6 Qd2+ Ke4 Qg5 Nc5 Re5#
2nr1Qnr/1NN1RRB1/2BR1R2/n1b3q1/P4b2/RR2PNqk/1B1K2b1/2n5 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 h4 Ke7 a4 b5 d4 f5 h6 g5 h5 c5 e3 c4 a6 c3 e6 Kf6 h7 c2 e7 b4 e8R g4 d6 Kg5 d7 g3 d5 g2 a7 b3 h6 f4 d6 f3 Kd2 Kg4 Nc3 b2 Nb5 b1Q Bb2 c1N Ra3 Kg3 Nc7 f2 Nf3 g1B Bg2 Nd3 Qf1 Bg7 Re7 Bb7 Rh4 Nc6 Rb4 Bd4 Rbb3 Qb8 d8N Bc5 d7 Na5 Bg7 Be4 Nb7 Bh2 d8R Nc1 Rd6 Bd5 Rf6 Qg6 Rd6 Qd8 Bh1 Rc8 a8R Qg4 Rf7 Qdg5 Raa6 Rd8 Rdf6 Qh3 Rad6 Kg4 Bg2 Bf4 Re7 Qg3 Ref7 Ne7 Bh1 Nc8 Re7 Rhe8 h8R Bc6 Rh7 Rh8 Bf8 Bd5 Rhf7 Be4 h7 Bd5 Qa6 Kh3 Qa8 Be4 Bg7 f1N+ Kd1 Nh2 Kd2 Ng4 Qb8 Rhe8 h8B Nh6 Ne5 Bd3 Bc6 Bf1 Nf3 Bg2 Rfe6 Nf5 Bb2 Rf8 Bhg7 Nh6 Rg6 Rh8 Rgf6 Ng8 Qa8 Rd7 Qb8 Nb6 Qd8 Nc8 Qf8 Rd8
N2Q1B2/1kn1NB2/bn1q3b/PN4KP/n2R2RB/B1rq4/RB5n/2rqB3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 b5 Kf4 c5 a4 Kc7 h4 c4 d4 b4 h6 c3 h7 g6 f6 e5+ Kg5 b3 f4 b2 a6 c2 h5 e4 a7 e3 f5 e2 d6+ Kb7 d7 e1Q d5 Qe5 a5 Ba3 d6 Qd4 Ra2 Qf8 d8B Na6 f7 Nf6 d7 Nc7 Rh4 Nfd5 f6 Qd6 f8B Qd3 f7 Nb6 Nc3 b1N Nh3 Bb2 Nb5 Bg7 Rg4 Nc3 Nf4 Nca4 Bd2 c1Q Be1 Rb8 Qd2 Qd1 a8N Rg8 Bfe7 Re8 Bf8 Re3 h8B Rf3 Nd5 Rh3 Re4 Re3 Ne7 Rf3 Kg4 g5 Be2 Re3 Kf5 g4 Kg5 g3 Rg4 g2 Bf1 Qe4 Bc4 g1N Be6 Qed3 Bc4 Ba1 Bb2 Rg3 Ba3 Bh8 Bg7 Rh3 Bf6 Bg7 f8B Rg3 Be5 Rh3 Bf7 Nf3+ Kf4 Nh2 Kg5 Qf1 Beb2 Rc3 Nc6 Qfe2 Bde7 Qed3 d8R Bf5 Bf6 Rc8 Ne7 Be6 Rd7 Bc4 Rd8 Qe6 Rdd4 Qd6 Be5 Rc1 B5g3 Rc3 Bh4 Rc1 Nc3 Ba6 Nb5 Qc4 Be8 Qf4+ Kg6 Ncd5 Bf7 Qfc7 Qg5 Qcd3+ Nf5 Qd6+ Qf6 R8c3 Kg5 Nc7 Qd8 Bh8 Ne7 Be5 Ra1 Bg7 Ra2 Bh6+
B1B1rr1N/2R1b1PP/rn1n1q1B/2B2B2/6b1/5q1R/4kNKb/rRQ3BN w - - 0 1 illegal: No proof kernel
1q1r2R1/KPRNN1bb/7k/2n5/P1rNNR2/2r1bB2/Q1NBqN2/rB3n2 w - - 0 1 illegal: No proof kernel
1Rn1BNrr/2b2NB1/N2r1N2/1q3b1K/2n1PNN1/3R1Pk1/Bb1Q4/R2r1b2 w - - 0 1 illegal: No possible last move
1B1kn2R/n1N2rP1/1Kqbn3/RN2B2r/1P3p2/1Bb1R1Rr/5RR1/4NQ1b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Ke3 a5 Kd4 h5 e4 c6 g4 h4 b4 f4 d6 h3 Kc5 h2 d4 a4 b6 a3 e6 a2 d5 Bd7 e5 Ne7 g6 Qc8 g7 Qd8 g8R Ra4 b7 Qc7 g5 Bc8 d7+ Kd8 g6 Rh5 Nc3 Rh3 Nb5 Qa5 Nf3 Rh8 Bc4 Ra3 Bb2 Rh7 Bb3 Qa6 Rg1 h1R Ne1 R1h6 Rg2 Rf7 g7 Rh5 Rh8 Qa4 Kb6 Na6 b8B c5 Qe2 c4 Qf1 Nc6 Rf2 Ke7 d8R c3 Rd7+ Ke8 e7 c2 d6 c1N Ra7 Nc7 Ra5 Kd7 e8N Bb7 e6+ Kd8 d7 Nd3 Be5 Bd6 Rd1 a1B Rdd2 Ba8 Rg2 Bb7 Rdf2 Na7 Rg3 Nc5 Rfg2 Ke7 d8R Bc3 Rf2 Bh1 Rc8 N7a6 Rc6 Kd8 e7+ Kd7 Nec7 Ne6 Bd5 Qc2 e8R Qg6 Bb3 Qe4 Na8 Nac7 Rc4 Qc2 Re4 Qc1 Ree3 Qc2 Rc8 Ne8 Rc5 Kd8 Nac7 Ra1 Rgg2 Rd1 Rc4 Rd3 Rce4 Qc1 Reg3 Rf3 Re3 Qc2 Rg6 Rfh3 R6g5 Qe4 R5g3 Qc6+
Rr1b4/RN5N/K2Q1N2/n1nq4/b1NBB2q/P2B3P/1brq1pN1/1k2N1R1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 Ke2 g5 Kd3 c5 Kc4 f5 Kb5 b6 d4 c4 h6 c3 h7 c2 h3 g4 a6 f4 e6+ Kd6 e7 f3 e8N+ Ke7 a7 g3 e5 g2 e6 f2 Bb2 c1B Nf3 g1Q Na3 Bb7 Nf6 Kd6 e7 Qg2 Rg1 Nc6 Ne1 Rc8 a8B Na5 Bd3 Bc6+ Ka6 b5 e8R b4 Nc4+ Kc7 Qd2 b3 Bb7 Ba4 d6+ Kb8 d5 Be7 d7 Kc7 Bd4 b2 Ba8 b1Q Bc6 Qb2 d6+ Kb8 Qh6 Qd2 Bce4 Bb2 Qf8 Qgg5 Qh6 Qd5 Qf8 Qc7 d8N Qcc5 d7 Kc7 Nb7 Kc6 Rd8 Qcb4 Re8 Rc7 Ra8 Bd8 Qh6 Nb3 Qf4 Ne7 Qh2 Rf8 h8N Rg8 Ng6 Nc5+ Ka7 Kb5 Nf4 Rc8 Nfg2 Rb8 Qd6 Rg3 Bf1 Rc3 Be2 Rc2 B2d3 Ba5 d8N Bc7 Ne6 Bd8 Nb6+ Qbc4 Ng5 Kb4 Ngh7 Ka3 Ng4 Qh5 Ngf6 Qh4 Rd1 Qd5 Nc4+ Kb4 a3+ Kb3 Rc1 Ka2 Rd1 Qc1 Rd2 Kb1 Re2 Qd2 Re3 Nb3 Ka6 Nc6 Rg3 Nca5 Rg7 Qd1 Nc5 Qe2 Rga7 Qd2 Nb7 Nc5+
BB1n4/3R1Bq1/k2B2qr/N1rNB3/1K3RBQ/PpnPqb2/1b6/NR1r4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 Kd7 f4 e5 a3 h5 d6 Kc6 f6 b5 g6 Kb7 d3 c5 Kd2 e4 Kc3 c4 a6+ Kb6 f7 e3 a7 e2 g5 e1R f5 h4 d7 h3 g7 h2 f6 Kb7 g6 Qe8 d8R Qe6 Be2 Qf5 Bb2 Qf3 Rd7+ Kb6 Nh3 Qg2 Bg4 Re8 Nd2 Be7 f8B Rh6 f7 Nc6 Rf1 h1Q Nb3 Qhg1 Qe1 Ka6 Qh4 Bb7 Nf4 Nf6 g8B Nd8 g7 Bf3 Rab1 Rc8 a8B Rc5 Nd5 Ne4+ Kb4 c3 Na1 c2 Be5 Bf6 Bfd6 c1Q f8B Qce3 Bb8 Nc3 Bf7 Re6 g8N Qg3 Bh3 Qg7 Bfd6 Q1g6 Bg4 Re8 Nge7 Rg8 Kb3 b4 Nc6 Rf8 Na5 Rfh8 Qe1 Rh1 Qh4 Rh6 Rf2 Rd1 Rf1 Ne4 Ka4 b3 Kb4 Nc3 Bf4 Bd4 Bfe5 Ne2 Rf2 Bb2 Rf1 Nc3 Rf2 Be4 Rf4 Bf3
2r1BbRR/2k2bnP/2P2BQ1/R3KnN1/2N2q2/RrRR1N1n/1rBp4/2q5 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 Kd7 c4 a5 h4 a4 b4 g4 f4 a3 h6 e6 h5 g3 b6 g2 b5 a2 b7 Qe8 c6+ Kd8 c7+ Kd7 c5 Rh7 f6 Ra4+ Ke5 d4 f7 d3 c6+ Ke7 f5 d2 b6 Qd8 Nf3 g1Q Qc2 Qg2 Bd3 Qf2 Bb2 Rh4 Rh3 Rb4 Na3 Rh8 h7 Rb3 h6 Qe8 Nc4 Na6 b8R Nc5 b7 Qg1 Bc3 Qc1 Ra8 Bd7 c8B Kd8 b8R Ne7 f6 Kc7 Rb5 Nf5 Rba5 Qd8 R8a6 Be8 Bd7 Qb8 Bb2 Rg8 h8R Qb4 Rb1 a1R h7 Ra2 Ra3 Qa4 Ra5 Qb4 Bc3 Rab2 Bd4 Ng7 Rba1 Nb7 Qb1 Qa4 Bc2 Nd6 Bc3 Ndf5 R1a2 Bc5 f8N Bf7 Be8 Be7 Rd5 Bb4 Rd3 Be7 Ng6 Bf8 Ngh4 Qb4 Ng5 Qd6+ Ke4 e5 Ra5 Qb4 R2a3 Qd6 Bd4 Qb4 Rc3 Qb8 Rhd3 Qb4 Kf3 e4+ Kf4 e3 Nhf3 e2 Ke4 e1N Ke5 Bd5 f7 Ng2 Bc5 Nf4 Be7 Nh3 Bf6 Be7 f8R Bf7 Bd7 Bc5 Rfa8 Rc8 Be8 Qh1 Qg1 Bf8 Qg4 Qc1 Qh5 Qa1 Qg6 Qc1 Bd7 Be7 Nd6 Rg8 Rb8 Qg4 Nc4 Bb4 Rb6 Ra8 Rbb8 Be7 Rbe8 Rc8 Reg8 Bf8 Be8 Qf4#
2kn1r2/bNq4r/1P2NR2/2BB1B2/2K1n3/1BB1P1Q1/Nr1pbB1r/3b1R1R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Kd3 d5 b4 Kd7 c4 a5 h4 f5 h6 g4 c6+ Kc7 e3 a4 h7 d4 c5 f4 e6 a3 e7 a2 e8B f3 h5 g3 h6 g2 Nc3 f2 Bf7 Ra5 Ba3 Bf5+ Kc4 d3 b6+ Kc8 b5 d2 c7 Nf6 b7+ Kd7 c8B+ Kc7 c6 Be4 Nf3 g1R Bd5 Ng4 Ng5 Nf6 Qe1 Rg2 Bc5 Ra8 Bf5 Qe8 b6+ Kd8 Be2 f1B Qg3 Qe6 c7+ Kd7 c8R Nc6 b8B Nd8 Rc6 Bf3 Rb1 a1R Na2 Rh2 Bf4 B1g2 Bd1 Ne4 Bb3 Bd6 Rbf1 Bb8 Bc7 Rf8 h8B Rb1 h7 Rb2 Bc3 Bd1 h8N Kc8 Nhf7 Qd7 Rf6 Bgf3 Ne6 Ba7 Bf4 Qc7 Nd6+ Kd7 Nb7 Kc8 Bd6 Rfh8 Bf4 R8h7 Bg5 Rb8 Bh4 Bfe2+ Kd4 Kd7 Qg7+ Nf7 Bf2 Rf8 Qg6 Kc8 Qg3 Bg4 Kd3 Nd8 Kc4 Bge2+
BB2Q2b/1N1q1B2/1kn1Kn2/5Brp/PBr1NRn1/4n1P1/b1N3B1/1R2qR2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Kg3 c5 Kf4 Kc7 a4 f5 e4 h5 d4 b5 g6 c4 a6 b4 g3 c3 g7 c2 a7 b3 e6 b2 Ke5 f4 d6+ Kb6 d5 f3 d7 f2 e7 Ba6 e8R Kc7 d6+ Kb7 Qe1 Kc6 Nc3 b1N Ba3 c1N Ke6 Qa5 d8B Nd3 d7 Nb2 e5 Nd1 Nf3 Qb5 Bg2 f1Q Bb4 Nd2 Bc7 Qfe2 Rf1 Nf6 g8B Nb2 Bf7 Nd1 Rb1 Bg7 Ne4 Nc4 Rf8 Nf2 Nd4+ Kb7 Bcd6 Ne3 d8N+ Kb6 Nc2 Nc6 Nb7 N2g4 Bb8 Rg8 Bg6 Bh8 Bf5 Rg6 Nf2 Rg5 Kf7 Qc5 e6 Ne8 e7 Nc4 Be6 Qd5 B8d6 Rc8 a8B Rd8 Bb8 Qdd2 Bc8 Rd4 Bd7 Qed1 Qe6 Q2e1 Ne4 Nce3 Qe5 Nef6 e8B Nh7 Be6 Qdd2 B8d7 Qd3 Bc4 Qdd1 Qe8 Qd3 Bd5 Bc4 B5e6 Ba2 Bc8 Na5 Ke7 Qb5 R8f4 Nhf6 Bf7 Rc4 Bd7 Qd5 Bf5 Qdd1 Ke6 Nc6 Nec5 Qd8 Ne4 Qd7+
1R2NR1K/BB3q2/RqRR1Q2/P1Nr1p2/1k4N1/1n5R/P1B4r/bn1bnn2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kg3 c5 Kh4 b5 Kg5 f5 Kg6 b4 h4 b3 d4 b2 e4 c4 e6 Kd6 e7 c3 e8N+ Ke7 h6 c2 e5 Qd7 d6+ Ke6 h5 Kd5 h7 Qb7 d7 Qa7 d8R+ Bd7 e6 Qa6 h6 Qc8 e7 Qc3 Ba6 Qc8 Nd2 b1N Nb3 Qc7 Rh3 Nc6 Rb8 Na7 Nc5 Kc6 Nf3 Nf6 Be3 c1N Nh2 Ng4 Bb7+ Kb5 d5 Nd3 d6 Ne1 Qd4 Nc6 Qf6 Nd4 Kf7 Bc6 d7 g5 d8R Nb3 Rd6 Kb4 Bd4 Ne3 Ng4 Bf3 Ra6 Nc3 Rc1 Bd1 Rd8 Rb8 Rdd6 Bg7 Kg6 Nb1 Kf7 Rg8 h8R Nf1 h7 Rd8 Kg6 Rf8 Bf2 Rf7 Rf8 Qd7 h8R Qe6 Ne5 g4 Kh7 g3 Ng4 g2 Rc2 g1Q Rhg8 Bh6+ Kh8 Rg7 Be3 Qf7 Na4 Rc8 Qb2 Rc7 Rd4+ Rc4 Nd6 Qe6 Rb8 Bf4 e8B Rd7 Rf8 Qf7 Rd3 Qf2 Qf6 Na1 Ba7 Qb6 Rd5 Rd8 Bd7 Rc7 Ne8 Be5 Bb5 Bd4 Bd3 Nb3 Be4 Rcd7 Rc6 Ba1 Bc2 Re7 Rd7 Re2 Nc5 Rh2 Rd3 Rd5 Rd2 Re5 Rdd6 Rd5
b1k2qRR/1q2QP2/p1N3r1/b2nbR2/P1R5/1b2B1n1/rN4R1/RBN1K1B1 w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 d4 Kd7 f4 g5 h4 e5 a4 b5 d6 g4 c6+ Ke8 d5 a6 d7+ Ke7 h6 e4 c7 g3 h7 g2 h5 b4 d6+ Kf7 f6 Ke6 f5+ Kf7 h6 b3 Nd2 e3 Rh2 e2 Nc4 b2 Be3 b1B Nb2 Bb7 c8R Ne7 Rc4 Nbc6 Qd4 Nb4 Qa7 Qe8 d8B Bc2 d7 Bg7 Bdb6 Qf8 d8N+ Ke8 f7+ Kd7 f6 Bb3 Nc6 Kc8 Bbc5 Rg8 h8R Nbd5 h7 Rb8 Bcd4 Nf5 Bb6 Qe8 f8R Ba8 Qe7 Ng3 f7 Bf6 Ba7 Rg6 Rfg8 Rb4 Rh5 Rb8 Rf5 Be5 Rg7 Rb4 Rhg8 Qf8 h8R Rb5 Nf3 g1Q Nfd4 Qg2 Bc5 Bd1 Nb3 Rb6 Nc1 Bb3 Bg1 Rb5 Bce3 Rc5 Rcf4 Rc2 Rc4 Qh1 Bg2 Rd2 Be4 Rc2 Nd1 Ra2 Bb1 Qe4 Rc3 Qb4 Nb2 Qb7 Rc4 Nh1 Kd2 e1B+ Ke2 Ba5 Kf1 Rh6 Rg2 Rg6 Ke2 Ng3+ Kf2 Bb6 Ke1 Ba5+
4kNNN/RqPNP3/3r1R2/n1qR2Kr/3p4/BnB2q2/N3Q1b1/qN1Bb3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 a5 c4 d5 b4 f5 h4 g4 Kf4 g3 e4 g2 c6 a4 h6 a3 h7 a2 c5 Bg7 b6 Be6 b7 Qd7 b5 Bf6 c7 Ra5 c8R+ Kf7 c6 Ra7 h5 Ra5 h6 Ra6 b6 Ke7 c7 Bh4 Ne2 g1Q Rf8 Qe8 Rf6 Ra8 Nec3 Ra4 Qe2 Rd4 Ba3+ Kd7 Bg2 Bf2 Bf3 Qe1 Rh5 Ne7 Kg5 Nbc6 b8N+ Kc8 Bg4 f4 Nd7 Qc1 Nf8 Nf5 Bf3 Bg8 e6 Be1 e7 Na5 e5 Qc6 e8N Qb7 e6 Rd2 Bg4 f3 e7 f2 Bf3 f1Q Bg4 Bf7 Bf3 Bg6 Bg4 Rg8 h8B Qf3 h7 Bf7+ Bg7 Be6 h8N Nd4 Bf5 Bd7 Bc2 Bh3 Bd1 Bg2 Rf4 Qb2 Nf6 Ndb3 Rf5 Qc6 Rh6 Qc5 Re5 Kb7 Rf5 Kc6 b7 Rd4 b8N+ Kd6 Nbd7 Rd3 Nhg6 Rh8 Ng8 Rh7 Be5+ Kc6 Rh5 Rh6 Nh8 d4 Bf4 Rd6 Bd2 Re3 Rh6 Re5 Rf6 Nc1 Ne4 Qb7 Bc3 Ncb3 Nf2 Re4 Rd5 Rh4 Nd3 Rh3 Nc1 Rh2 Nd2 Rh1 Rb1 a1Q Na2 Nc1 Rb4 Ncb3 Nb1 Rh6 Ra4 Rh5+ Kg6 Nc4 Ra8 Nca5 Ra7 Rh4 Nb6 Rh1 Kg5 Rh6 Nc8 Rh1 Nh7 Kd7 Nf8+ Ke8 Nb6 Rh7 Nbd7 Rh5+
rBN5/B1nN1n1K/n1k2N2/bR6/1b2pB2/1B2PPR1/BnBQ1q1q/3R1b2 w - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 b5 a4 a5 axb5 g5 d4 g4 dxc5 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bg7 Qd6 Bh6 Qd1 Bf8 Kd2 h5 Kd3 d5 b4 Kd7 c4 e5 b6 d4 Ke4 h4 b7 h3 b5 g3 c6+ Kc7 f6 h2 f7 g2 b6+ Kd6 c5+ Ke6 g6 d3 g7 d2 c7 Kd7 Kf5 a4 Kg6 e4 c6+ Kd6 Nc3 a3 Nd5 a2 Nf3 g1N Nf6 Bg4 c8N+ Kc5 c7 Qd7 Ne5 Rh3 f3 Qd8 Rb1 a1B Ned7+ Kc6 Rb5 Bb4 f8R Nh6 g8B Na6 b8B Nf7 b7 Bac3 Ba7 Rh8 b8B Nh3 Qe1 d1N Bf4 Be6 e3 Nb2 Bd3 Nhg5 Qd2 Bh3 Rd1 h1Q Bc2 Bf1 Re8 Qh4 Ree5 Ne6 Rg5 Qf2 Rg3 Nh6 Bf7 Qe7 Bg8 Qd6 Bf7 Rd8 Kh7 Ba5 Bg8 Bcb4 Bf7 Nd4 Bfb3 Ne6 Ncb6 Nf7 c8B Nac5 Ba6 Nc7 Nc8 Rg8 Rb7 Qe5 Bac4 N5a6 Rb5 Rd8 Ba2 Re8 B4b3 Qh5+ Bh6 Qhh2 Ncb6 Na8 Bd6 Rb8 Nc8 Nb6 Bc7 Ra8 Be5 Nd5 Beb8 Qhg2 Bg5 Ndc7 Bf4 Qh2+
N2rRnb1/2B2K2/6Nb/2BB3P/Rr1R1p2/rBb1nQ2/2pBqP2/3k1N1B w - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e5 dxe5 d4 axb5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Kd2 Kd7 Ke3 c5 Ke4 g5 Kf5 a5 h4 f6 Kg6 c4 b4 c3 e4 g4 d6 Ke6 h6 c2 d7 f5 h7 a4 b6 a3 b7 f4 b5 a2 h5 g3 b6 g2 Bc4+ Ke7 e6 Ra5 e5 Na6 b8R Nh6 b7 Ra3 Nf3 g1B Bd2 Qc7 d8B+ Ke8 e7 Kd7 e6+ Kc6 e8B+ Kc5 e7 Rb3 Nd4 Bh2 Ba4 Qe5 e8B Bg3 Qf3 Qe2 Bec6 Nf5 B4d5 Bh4 Rd1 Nc7 Nb5 Bh6 Kf7 Ne6 Bc7 Rb4 Bab3 Rd8 h8N Nf8 Ng6 Bf6 Ra8 Bd7 b8B Ne3 Bb7 Bc3 Bd6+ Kb6 Nc7 Bf5 Ra4 Bd3 Na8+ Kb5 Bc5 Be4 Bc7 Bf5 Be1 Be4 Nd2 Bf5 Rab1 a1R Rbc1 Ra3 Nf1 Bd3 Bd2 Bf5 Nh4 Bh7 Ng6 Nf5 Qe3 Qf3 Be1 Qg2 Bf3 Qg4 Bh1 Qf3 Rd5 Qd1 Re5 Qe2 Qf3 Ne3 Rd1 Bd2 Be6 Bc3 Rdd5 Kc4 Bc6 Kb3 Rd4+ Kb2 Bd2 Kb1 Bb3 Kb2 Re8 Kb1 Be1 Kc1 Bd2+ Kd1 Bcd5 Bg8+
N1b2qn1/2b3BN/Q1N5/1K2PB2/r1p1nPNn/3Np1NR/1R1R4/bB3rk1 w - - 0 1 illegal: No proof kernel
1n2NB1K/Pn2N1b1/1R1PB3/NB1rqp1R/RN2NQb1/6p1/2r2b1N/2n4k w - - 0 1 illegal: No possible last move
2B2BNb/1n1nB1N1/PbNq2N1/8/2Kp3n/N2P3R/RprbkN2/RQ5b w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Ra7 c3 Rb7 c4 Rb5 cxb5 Bb7 Qb3 Ba6 Qd1 Bc8 Ke2 Kf7 Kd3 Kf6 f4 c5 a4 d5 h4 e5 h6 g5 b6 d4 b7 e4+ Kc4 b3 h7 e3 h5 g4 h6 g3 a6 b2 a7 e2 a8R e1B d3 g2 a5 Na6 b8N Bg3 Nh3 g1N Nf2 Bg7 Bh3 Bh4 Nc6 Qd6 Na3 Nf3 Bg4 Bb7 Rh3 Bg3 Bd2 Nh4 Bb4 Bh2 Qb1 Bg3 Nb8 Bh1 Nc6 Nb8 Ra7 Ne7 Ra2 Rf8 h8N Rc8 h7 Nd7 Nf7 Bh8 Nh6 Rc7 Ra8 Nc8 Ra7 Kg7 f6+ Kg6 f5+ Kg5 f7 Kf4 f6 Ke3 Bf5 Ke2 f8N Be5 f7 Bg3 Kb5 c4 Ne6 c3 f8B c2 Kc4 c1B Ng7 Bd2 Ng8 Bc3 Bc5 Qf6 Bce7 Nd6+ Kb3 Nb7 Kc4 Qd6 Ra6 Nf6 Bc8 Nd7 Nf5 Bg7 h8N B3e5 Ng6 Bh8 Ng7 Bf4 Rb6 Bfd2 a6 Ba5 Rb4 Bb6 Ra1 Bc3 Ra4 Bg2 Kb5 Ne5 Nb8 Nd7 Nc4 Bh1 R4a2 Bca5 Na3 Rc2 Nc6 Bc3 Kc4 Bd2+
K2Rn2Q/NB2b1bp/4B1B1/2B5/1RNp1bq1/2kb1P1B/R6P/1qnr2BN w - - 0 1 legal: proof: a4 a5 d4 f5 Kd2 c5 dxc5 b5 axb5 e5 Na3 e4 Nb1 f4 f3 Ra6 fxe4 f3 e5 f2 Nh3 Rf6 Ng1 Rf3 gxf3 Qb6 Ke3 Qf6 Kd2 Qd8 Kd3 Kf7 Ke4 Ke6 c4 g5 b4 d6 b6 a4 b7 g4 c6 g3 b5 a3 b6 a2 c5 g2 c7 Be7 c6 Bf8 Qd4 Qe8 Ba3 Qf7 Nd2 Qh5 Nc4 Na6 b8N Bd7 c8B Qf7 b7 Qe7 c7 Nh6 Nh3 g1B Bc5 Nb4 Nc6 Bg7 b8B Qf7 Bba7 Na6 Bb7 Nb4 c8B Qe7 e3 Kf7 e6+ Kg6 Qb2 Nd3 Kd5 Rd8 e4 Nf7 e5 Qg5 e7 Kf5 e8B Nc1 e6 Qg4 e7 Bf6 Bg2 f1Q Nf2 Qe1 Rb1 a1B Bh3 Bg5 Qh8 Bf4 Bab6 Bg7 Na7 Qb4 Ra1 Qb1 Ra2 Be6+ Kc6 d5 Bcd7 Nd6 Bg6+ Kf6 e8R Bf5 Rg8 Bd3 Be6 Rd7 Rd8 Ne8 Ba6 Rd6+ Kb7 Rd7+ Ka8 Rd6 Nd2 Ke5 Bb7 Rd7 Nd1 Bd4 Nf2 Bb2 Rf1 Ba3 Nh1 Bb4 Bg1 Be7 Bbc5 Rd6 Rf2 Rd7 Bb4 Kd4 Nc4 Rd6 Bc5+ Kc3 Rfb2 d4 Bd7 Re6 Rb4 Re1 Be6 Rd1
5Rnk/R2n4/N2N3b/1pNP1K1P/5BB1/1r2p2N/2Bpr1N1/1QqqNbR1 w - - 0 1 illegal: No proof kernel
k1B1KB1r/Br1Np1Nb/2p1qB1b/3nP2Q/R1B1n1q1/B2P2R1/1p2N3/4R3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 Kf2 Kd7 Kf3 b5 Kf4 f5 Ke5 f4 a4 f3 e4 f2 h4 b4 h6 c6 g6 Kc7 h5 Kb7 g7 b3 d6 Ra7 a6+ Ka8 d7 Qa5+ Ke6 Nf6 Kf7 Nh7 d8B Rb7 g8R Qf5+ Ke8 Qf6 e5 Qf5 a7 Qc2 a5 Bg7 Na3 Qf5 Nb5 Rb6 Ra4 Ra6 Bc4 f1Q d3 Qg5 Nd4 Bg4 Ba3 b2 Ne6 Qh3 Bb6 Nf8 h7 Qgh4 h6 Bf5 Qh5 Bg4 Ne2 Qe3 Re1 Kb7 a8N Nbd7 Ba7 Qeh3 Nb6 Nc5 Nd7 Rb6 a6+ Ka8 Bb8 Ne4 a7 Bf6 Rg6 Bf5 Rg3 Rg8 h8B Bg7 h7 Bh6 Bf6 Rb3 h8B Bh7 Bhg7 Ng6+ Bf8 Nf4 Ng7 Nd5 Bg5 Rh8 Bf6 Kb7 a8B+ Kc8 Rd1 Qe6 Ba7 Qhg4 Bb7+ Kc7 Bc8 Rb7 Bg1 Qgf5 Re1 Qg4 Nb6 Kb8 Bd4 Ra7 Nd7+ Ka8 Bb6 Ra5 Ba7 Rb5 Ra6 Rb3 Ra4 Rb7
R2NRB2/3nqB2/q1R1p1b1/4p1N1/3pPrk1/1n1BbNB1/2Bn3P/1K4QB w - - 0 1 illegal: Other
R3nNbB/2Q2p1R/b6q/1B2pPN1/N2qNk1K/4RN1P/2pb2B1/5rrN w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 Kd7 e4 Ra6 d6 Kc6 d7 Ra8 d5+ Kd6 Bg5 Ke5 Bc1 Na6 d6 Kf6 Nh3 Nb4 Ng1 Nd5 exd5 Ra7 Qd2 Ra6 Qd1 Ra8 a4 Ke5 f4+ Kf5 Kf2 b5 Kg3 c5 h6 g5 h7 c4 h3 b4 a6 e6 a7 b3 a5 c3 a6 b2 Nd2 b1B Ndf3 g4 Bb5 c2 Bb2 Nh6 Ne2 Qb6 d8N Ba2 d7 Qc7 d6 Qb7 Re1 Ng8 Kh4 Ke4 f5 Rb8 a8N g3 a7 g2 Nb6 g1Q a8B Bh6 Ng3+ Kf4 Re3 Qh1 Na4 Qe4 Nb7 Nf6 d8N Qd4 d7 Rg8 h8R Ne8 Nbc5 Bd5 Nce4 Ba6 Rh7 Rb7 Qb1 Qc1 Nh1 Rg1 Qa2 Rf1 Qc4 Rb6 Qc6 Bc4 Raa3 Be2 Qc7+ Rd6 Nfg5 Bh5 Nc6 Bg6 d8N Qcd2 Ne5 Rd5 Nef3+ Re5 Rh8 Bh7 Ra2 Bg8 Rh7 Qd6 Bb7 Rd5 Bg7 e5 Bh8 Qd4 Rb3 Bf8 Nac3 Rf2 Nh2 Q4b6 Nf6 Rd1 Bg2 Rg1 Nfe4 Bb7 Ra8 Ba6 Na4 Qdd4 Nhf3 Rff1 Re3 Qg6 Nc6 Bc5 Nb8 Bb4 Nd7 Bd2 Nf8 Qh6+
N2qBB1N/2B2N2/1pR1Kq1B/rQ2pn2/bB5P/b3RR1p/kPB5/6br w - - 0 1 illegal: No proof kernel
1n4R1/B1B2qP1/KBB1Nkb1/7n/np1N1pr1/1B4pn/1PB2r2/RRN3Q1 w - - 0 1 illegal: No proof kernel
k4r1N/1prpnB2/1rQNnRb1/K5NR/1B4N1/1pBPp3/1P3NR1/1q3N2 w - - 0 2 illegal: Other
NN2B2R/8/1Q2bp2/Nq2NK2/1p1b1PB1/n1b1R2b/1P1rn1rR/NN1kn1B1 w - - 0 1 illegal: No proof kernel
2b2N2/1rN1k3/bN2rq1B/nP2N1qB/1P6/1RNbNn2/q2N1Q2/4RKQ1 w - - 0 1 legal: proof: c4 b5 h4 e5 d4 c5 a4 g5 hxg5 d5 axb5 e4 cxd5 e3 fxe3 c4 e4 Be7 e5 Bc5 dxc5 Kd7 Rh5 Ke7 Rh1 Ke8 g4 a5 e4 h5 b4 f5 g6 c3 g7 a4 d6 c2 e6 h4 e7 f4 d7+ Kf7 e8N a3 g5 a2 c6 h3 c7 f3 e5 h2 e6+ Ke7 g6 Bb7 Nd6 Na6 c8N+ Kf6 e7 Qb6 d8N Qe3+ Ne2 Qf4 Qd4+ Qe5 N6f7 Nc7 Nd2 Ne6 Qf2 Ra7 Rb1 a1Q Rb3 Qa2 Nb6 Ng5 e8N+ Ke7 Ne6 Bc8 N8c7 Rb7 Nf8 Qf6 Ne5 Rh6 Rg1 h1B Nc3 Bg2 Be2 Bgh3 Rh1 Bhf5 Kf1 Be4 Qd4 f2 Bh5 Nf3 Qe3 Kd8 Qc5 Ne7 g8N Nc6 g7 Na5 Ne7 Bc6 g8Q Bd5 Kg2 f1B+ Kf2 Be2 Nf5 Bd3 Ne3 Bde6 Qd4+ Ke7 Re1 Bef5 Qg1 Bh3 Ba3 c1Q Qf4 Ra7 Qfh2 Ba6 Qhg3 Rb7 Qf4 Qca1 Bc1 Bc8 Kg2 Qf5 Qg3 Re6 Q3f2 Bc2 Kf1 Qg5 Ne2 Bg6 Nc3 Bd3+ Ne2 Rf6 Nf7 Rd6 Ndc4 Bh7 Nc2 Qg3 Bh6 Rg6 N2e3 Re6 Nd2 Qf6 Nc3 Qgg5 Ne5 Bd3+
r2NkN2/2rR2Q1/2b3N1/1qR3rb/2N1NBPr/4rN2/5P1K/r1nB1QN1 w - - 0 1 illegal: No possible last move
1N5k/2qqRrq1/b1PBBr2/nP4Q1/2BK1B2/1BB2QB1/5rbp/2N4R w - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 f5 e4 b4 exf5 b3 f6 Nc6 g3 Ba6 axb3 Bb7 b4 Nb8 b5 Bc8 h4 g5 Ra5 Nc6 Ra1 Nd4 g4 Nf5 gxf5 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Kf7 Ne2 Kf8 Ng1 Ke8 Kf2 Kf7 Ke3 h5 c4 a5 b4 e5 b6 d5 b5 h4 b7 e4 b8B g3 g6+ Kf8 f7 Kg7 f8B+ Kf6 g7 a4 c6 h3 c7 h2 c5 a3 c6 g2 Nd2 a2 Ndf3 Nh6 g8B Ba6 c8B Ng4+ Kd4 e3 Ne2 g1R Qd2 Qc7 Bce6 Ra7 Bd6 Kg7 Ne5 Rh6 f6+ Kh8 f5 Rg2 f7 Rf2 f8B Rf6 Nd7 Ne5 Bgf7 Nc4 Bg7+ Kh7 Bg3 Na5 Ba3 Rb7 Nc1 e2 Bad6 e1Q Bc4 Qd1 Rb1 a1Q+ Rb2 Qh5 Qg5 Qh6 Bh8 Qg7 Bdf4 Qa3 Re2 Qe7 Ree1 Qcd8 Bbd6 Qc7 Nb8 Qed7 Bh5 Ra7 Bd1 Rb7 Bdb3 Ra7 Ke5 d4 Kd5 d3 Kd4 d2 Re5 Rg6 f6 d1B f7 Bf3 f8Q Bg2 Qff5 Qgf7 Bf6 Qg7 Qe4 Kh8 Qf3 Bb7 Bg4 Bc8 Re7 Ba6 Bge6 Rh6 Kd5 Rb7 Bc3 Rf6 Kd4 Qdd8 Qd3 Qcc8 Rf7 Re7 Qf3 Qcd7 Qe2 Q8c7 Qf3 Re8 Re7 Ref8 Qe4 R8f7 Qe2 Rf8 Qf3 R8f7
b1q1qB1K/B1qp2q1/1P1B3Q/P3RnR1/rBQBB2b/B2N3k/1p4N1/8 w - - 0 1 illegal: No proof kernel
1NrNB2B/1Rb1kN1Q/n2NrN1N/4Nb2/q7/q2q1P1n/1Q1bP3/2KRr3 w - - 0 1 illegal: No proof kernel
5N2/1B6/RnK1nqNP/2BN3N/3n2b1/PNQRrQ2/1qr2q1k/b2N1r1N w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 f4+ Kh4 d4 e5 d6 c5 Kd5 b5 d7 g5 a6 g4 f6 e4 f5 b4 a7 b3 h6 e3 h7 c4 f7 c3 f6 b2 Ba6 g3 Nh3 g2 Qf3 g1N Bb7 c2 Nc3 b1R Nd1 e2 Ba3 c1Q Nhf2 e1Q Bc5 Qde7 d8N Qcc3 Ne6 Qc2 Ng7 Nh6 Nh5 Na6 Kc6 Bh3 d5 Rd8 a8N Rb8 d6 Q7e5 d7 Ng8 d8N Ne2 Nc7 Bg4 Nde6 Bg7 f8N Rc8 f7 Nf6 Nd4 Nd7 Nb3 Nb6 a3 Re8 Nd5 Nc7 h3 Rg8 h8Q Qcb2 Rf1 Bf6 Nh1 Qf2 Ra2 Ne6 Ng6+ Kg5 f8N Rc1 Qg7 Rc2 Qc7 Rg7 Ra1 Rf7 Rb1 Bg7 Rc1 Rf4 h4+ Kf5 Rg1 Qf6 Rg3 Bh8 Qg2 Re7 Rd3 Rf3 Qc8 Re3 Qc7 Rf7 Qf1 Ke4 Qe5+ Kf3 Qc3 N2f4 Qe2+ Kg2 Qf3+ Kg1 N5g3 Bg7 h5 Kh2 h6 Ne2 Nh5 Bh8 Qe1 Rd2 Rc4 Rc2 Qc3 Bg7 Ra4 N2d4+ Kd6 Bh8 Ra6 Qg7 Nhf4 Ne2 Rd4 Qf1 Qd3 Qa1 Qfe4 Qe1 Nh5 Rf1 Qc4 Qf2 Kc6 Qe7 Qf5 Qc1 Rd2 Ba1 Rd3 Qb2 Qc3 Qf6 Qf3 N2d4+
NQBbKr2/R1b2BP1/NBR1n1r1/3B1q1k/1qnBB2P/rb6/6q1/1Q3B2 w - - 0 1 illegal: No possible last move
2R3R1/1K3BRP/6nr/R1nb2bR/2QrQ3/b2R1N1R/3nP1kB/2q1brN1 w - - 0 1 illegal: No possible last move
2B1rkBB/PrRBb3/2QRnbr1/Q3N2b/3N4/1n2nrq1/B2B1P2/1B4K1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 g4 d5 c4 e5 a4 b5 a6 h5 a7 h4 f6 h3 c6 h2 f7+ Ke7 c5 e4 g6 b4 g5 e3 c7 b3 c6 b2 a5 d4 g7 d3 g6 e2 a6 Qd5 Nc3 b1N Bd2 Qe5 Qc2 Qg3 Nf3 Nd7 Ne5 Nh6 g8B Ng4 g7 Nc5 Nb5 Rh6 Nd4 Ne6 Ra2 Rb8 a8Q Rb7 a7 Rg6 Qa4 Ne3 Rc2 Bd7 c8B Be8 Rg1 h1R c7 Rh3 Qa5 Rh8 Bd7 Rh3 c8B Rh8 Bc1 Nd2 Rc7 Nb3 Bh7 Rg8 Bd2 Rh8 g8B Bg7 Bg2 Kf8 Bd5 Bf6 Bc1 Nbc5 Ba2 Ng2+ Kd2 e1B+ Kd1 d2 Ke2 d1R Kf1 Nb3 Bd2 Rb5 Qc6 Rb7 Rh1 Rc1 Kg1 Rc3 Rh4 Rf3 Rh6 Rg5 Bhb1 Be7 Rf6 Rg6 Be3 Bc3 Bd2 Ng7 Rd6 Ne6 Bc1 Bd2 Bb2 Bdg5 Bc1 Bh4 Bd2 Bhf6 Qac5 Rgh6 Qa5 Kg7 Bgh7 Rg8 Bhg6 Rgh8 f8B+ Kg8 Bgf5 Bf7 Bg7 Bh5 Nc4 Kf7 Bh7 Re8 Bh8 Kf8 Bg8 Rg6 Ne5 Ne3+
1kn1Q1qr/7R/qbQ1r2B/4nB1R/Nn1Pr1Q1/Q2r4/K4QP1/1QQbN3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 Kd2 a5 Kc2 e5 Kb3 h5 f4 c5 b6 e4 f6 a4+ Ka2 a3 b4 c4 f7 c3 b7 Kc7 f5 e3 g6 e2 b5 e1Q b6+ Kd6 f6 h4 g7 c2 Bh6 c1R Nc3 h3 Nf3 h2 Na4 Nc6 b8Q+ Kd7 d6 Ne5 b7 Ne7 g8Q Rc3 Qc1 Ra6 Bd3 Qf1 Qa8 Qe8 Bb1 Rd3 b8Q Kd8 d7 Re6 Qb5 Qe2+ Bc2 Kc7 Qbb1 Bb7 Qgg5 Nc8 Qg4 Bc5 f8Q Bb6 Ne1 Bf3 Qc6+ Kb8 d8Q Qf1 f7 Bd1 Qfc5 Qg8 f8Q Qe2 Qf2 Qf1 Rg1 h1R Qde8 Rh4 Rh1 Qe2 Qh3 Re4 Qg4 Rd2 Rh5 Qa6 Kb3 a2 Q5a3 Rd3+ Kb2 Rg3 Bd3 Ree3 Bf5 Re4 Qbc2 Rd3 Rb1 a1N Ka2 Nf7 Rb2 Ne5 Q2b1 Nc2 Rb5 Qf8 Rd5 Qg7 Rd7 Qg8 Rh7 Nb4+
2N2K2/b1QQRBB1/Nb2nR1r/2P3BB/2rB2b1/1q1B3k/b3Prq1/6Bn w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 c4 d5 h4 f5 b4 d4 h6 d3 h5 a4 b6 a3 b7 g6 b5 a2 h7 d2 h6 Nc6 b8Q Nb4 c6 Ra5 b6 Nc2 b7 Qd6 Kg5 f4 c7 f3 c5 f2 Nc3 Qd5 Nf3 Ne7 Ne1 Nd4 Bg2 f1B Be4 Ra3 Na4 Bg2 Nd3 Bd7 c8B Nef5 Qc7 Ng3 b8B Rc3 Nb6 Qb3 Nb4 Bd6 Bd3 Rc4 Rf1 Bd5 Na6 Nh1 Bb7 Rf8 h8B Rf2 h7 Be7+ Kh6 g5 Kg7 g4 Bc6 g3 Nc8 g2 Ba4 Bf6+ Kf8 g1Q Bg7 Qg2 Rb1 a1B h8B Bb2 Bb5 Ba1 Bg6 Bg5+ Bf7+ Kf5 e6 Kg4 e7 Kh3 e8B Bg4 Rb2 Bf4 Bh5 Bg5+ Bef7 Bd8 Rb1 Bc3 Ra1 Ba5 Ra3 Rc2 Bd3 Bb6 Ra5 Bc4 Rb5 Ba7 Rb7 Nf3 Bd4 Ng5 Bhg7 Bd5 Bgf6 Rc4 Bg7 Qa2 Qa4 d1R Qad7 Qb3 Bf4 Bde6 Bh2 Ra1 Bg1 Raa4 Qf4 Bdb6 Qfc7 Rf6 Rf2 Rh6 Rf6 Ra1 Qcc6 Rf1 Bf4 Rf2 Qcc7 Nf3 Bg5 Bd5 Bb2 Nd4 Ba1 Nc6 Be5 Nd8 Bd4 Ne6+ Kg8 Nf4 Qdd8 Qc3 Qcd6 Rb4 Re7 Ba2 Q6c7 Qb3 Kf8 Rc4 Qdd7 Ne6+
KRrkbNn1/1qbB2b1/2bN4/5n2/PbR2R1P/Q2Rb3/1r3QR1/3R1RB1 w - - 0 1 illegal: No possible last move
B2RR2B/3bp3/1Pn1Bn2/Bb2q1n1/2Q2Pr1/rN3r2/1K3kN1/BB1Q2bB w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 h5 b4 a5 g4 d5 f4 d4+ Kb2 d3 c4 h4 c6 h3 c5 d2 c7 h2 f6 Kg6 c6 a4 b6 Bh6 f7 Qf8 b5 Ra5 b7 Na6 b8B Nc5 b6 Qe8 f8B Na6 Bd3+ Rf5 Nf3 Qd8 Bg7 Qd6 Ne1 Qd5 Ng2 Rh7 Bh8 Be6 c8B Nf6 c7 Nb4 Bb7 Bg7 c8Q Nc6 Be5 Bd7 Ba8 Rh3 Bc3 Rg3 Ba5 Rf3 Qa6 Qe4 Qc4 Re5 Re1 h1N Re2 Nf2 Re3 Kh7 g6+ Kh6 g5+ Kh5 Bc2 Kg4 Rd3 Kg3 Rd5 Bh6 g7 Nh3 g8B Bg7 g6 Kf2 Be6 Rg5 Rd4 Qe5 Ra3 Bh6 g7 Rg4 g8B Bg7 Be4 Ng5 Bgh7 Nb8 Bhf5 Bb5 Rc3 Nc6 Rd8 a3+ Kb3 a2 Bb2 Nb4 Ba1 Bd7 Kb2 Nc6 Qc1 d1B Nd2 Bc2 Qd1 Ba4 Nb3 Bb5 Re8 Qc7 Rd3 Qe5+ Kc2 Bc8 Rdd8 Bd7 B1c3 a1R Kb2 Ra4 B4d5 Ra3 Bb1 Rh3 Nh4 Re3 Bh1 Rf3 Ng2 Qe3 Bg6 Nfh7 Rf8 Bd4 Kb1 Qe5 Rfe8 Nf6 Ba1 Kg3 Kc1 Bc5 Bb1 Bg1 Kc2 Kf2 Kc1 Qf5 Kb2 Qe5+
1NQr1kq1/3n3Q/1Q1n4/1RQ1r1r1/BQ3KN1/r1b3nb/P2pPQ2/Q1B1R3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 d5 Kg3 f5 h4 g5 c4 b5 a6 b4 h6 d4 h7 b3 a7 g4 h5 d3 h6 b2 c6 d2 c7 Qd5 c5 Qd4 e6 Qd8 e7 Nf6 c6 Be6 c8Q Bf7 c7 Ne4+ Kf4 g3 Nc3 b1R Bg2 Nc5 Nh3 Bd5 Na4 Be4 Nb6 Bc6 Qa4 Bb5 Bc6+ Nbd7 Nf2 g2 Qb4 g1R Rh5 Ba4 Ng4 Bc2 Ba4 Ne4 Rg5 Rg8 h8Q Nd6 h7 Bg7 Qb8 Rf8 c8Q Bc3 Qcc5 Bb3 Qg8 Be6 h8Q Rb3 Qh1 Ra3 Qgh7 Rg8 Rh5 Rg5 Qf3 Rg3 Qff2 Re3 Qbc7 Rb8 a8Q Re5 Qh1 Rc8 Nc4 Ra8 Q7b6 Qb8 Na5 Qc8 Kf3 f4 Nc6 Bf5 Nb8 Qd8 Kg2 f3+ Kg3 Be6 Kf4 Bf5 Qfd4 f2 Qg2 f1N Qgf2 Qc8 Rb1 Ng3 Rh1 Be4 Re1 Bg2 Rb3 Ba1 Qb2 Bh3 Qbb1 Bc3 Qa1 Nf1 Qhb1 Kf7 e8Q+ Kg7 Qe6 Qg8 Qh7+ Kf8 Qec4 Ng3 Qc8+ Re8 Qb4c5 Rd8 Rb5 Ra7 Q4d4 Rc7 Qcb4 Rcc5 Qde3 Rcd5 Qec5 Rde5
1b4QB/bN1KPb2/r5r1/1p2b2r/1R1Q1QQ1/n7/QPknNQ2/3RQq1B w - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Ne7 fxe5 Qd7 a4 Qd6 a5 Qb6 axb6 Ng8 Kf2 Kd7 Ke3 a5 Kd4 g5 h4 f5 e4 c6 b7 f4 e6+ Kd6 e7 a4 e8Q a3 h6 a2 h7 f3 e5+ Kc7 e6 Kd6 h5 g4 h6 g3 Na3 f2 Qg4 g2 Nc4+ Kc7 Ke5 c5 d4 Ra6 Be3 Rd6 Rd1 a1Q Rh4 Qb1 Ne2 g1B Na5 Kb6 Bg2 f1R Bh1 Na6 b8Q+ Bb7 e7 c4 Qf7 c3 Qf2 Rg6 d6 c2 d7 Nf6 Kd6 Nb4 d8Q+ Ka6 d5 c1B Bc5 Ne4+ Kd7 Nc2 d6 Na3 Bd4 Bd5 Nb7 Bg7 Qg8 Be5 Qbf8 Nd2 Q8f4 Ba2 Qc4 Ra8 h8Q Bb3 Qcg8 Bf7 h7 Qd3 Qe1 Qh3 Bc3 Ba7 Qhf6 Rf3 h8Q Qf1 Qfe6 Rh3 Qhf6 Bb8 Qa2 Kb6 Na5 Kc5 Bd4+ Kb4 Nb7 Ra6 Qff2 Bf4 Qe5 Be3 Qef4 Ka4 Bh8+ Bd4 Qa1 Kb3 Qa2+ Kc2 Kc8 Rg3 d7 Rh3 d8Q Bda7 Kd7 Rh2 Rh3 Be5 Rb3 Rh5 Rb4 Nb3 Q4d4 Bcf4 Qdf8 Nd2 Qh6 Beb8 Qhg5 Bfd6 Q5f4 Be5
1n1Q2RK/1r4PQ/rb3Q2/3pnq2/3Qr2Q/2BNQ3/kNQpB1bP/4Rb2 w - - 0 1 illegal: Other
R6b/1R1RQq1K/1pB1nR1P/Q1B1k1b1/1q1p2R1/3Pr2b/R2N4/r2q1N1R w - - 0 1 legal: proof: e4 a5 c4 h5 b4 f5 bxa5 b6 exf5 h4 c5 h3 c6 Na6 gxh3 Ra7 h4 Nc5 h5 Nb7 cxb7 Ra8 Ke2 Kf7 Kd3 Kf6 Ke4 c5 b8R e5 f4 g5 h4 c4 a4 d6 d3 c3 h6 c2 h7 g4 h5 g3 h6 g2 a6 Qe7 a7 Qd7 a5 Qb5 a6 Qd7 Qh5 Qe8 Ra2 Qg6 Rb7 Qe8 Nd2 Bg7 Ngf3 g1B Nh2 Bf8 Bg2 Bg7 Nhf1 Bd4 Ba3 c1Q Bc5 Rb8 a8R Ne7 a7 Ng6 Ra4 Rf8 h8R Qd1 Rh7 Bh8 Rhd7 Be3 Bf3 Qe7 Rb4 Re8 Qg5+ Kf7 f6 Ke6 f7 Nf8 Qh5 Kf6 f5 Ne6 f8R+ Qf7 Ra4 Bf4 Ra2 Re7 Rg8 Be3 Rg4 Bg5 Qh4 Re8 Kd5 e4 Bg2 e3 Ke4 e2 Bf3 Qe7 Qe1 Kf7 f6 d5+ Kf5 d4 Qh4 e1Q Bc6 Kg8 Kg6 Qf8 Nc4 Qb4 Ncd2 Qe7 f7+ Kf8 Rd6 Qc7 Kh7 Ke7 Rd5+ Kf6 Rd7 Qf4 f8R+ Ke5 Rg7 Qf7 Rd7 Be3 Qe7 Bg5 Rb7 Qh5 Rf6 Qf7 Rd7 Rb7 Rb8 Rc7 a8Q Ra7 Rdb7 Ra3 Qa5 Bd7 Ra8 Ra4 Rb2 Ra1 Ra2 Bc8 Rd7 Bb7 Ba4 Bg2 Bc6 Bh3 Qf8 Nc7 Rf2 Qe7 Rdd8 Ke6 Rdb8 Qf6 Rb7 Qe7 Rff7 Qf6 Rd7 Qf7 Qd6+ Kf5 Qf8 Re3 Qe7 Ne6 Rf4+ Ke5 Rf3 Bh4 Rf6 Qf8 Rgg1 Bg5 Rg4 Qf7+
b2BQ3/Q1BnB2P/2r3pB/N1b2RK1/1R6/1Br1P3/1qbp1NpB/B1kn4 w - - 0 1 illegal: Other
2qbq3/q1n1P1R1/R1bNNRNK/2R1R1r1/Q5Nb/P6N/1r4kn/3B2B1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 a5 g4 b5 gxh5 b4 a3 a4 Qxa4+ Qd7 Qd1 b3 Qxb3 Qa4 Qd1 Qd7 b3 Qd8 Kf2 Kd7 Kg3 g5 Kg4 c5 h4 f6 e4 c4 d4 c3 e6+ Kd6 b4 c2 e5+ Ke7 h6 f5+ Kh5 f4 d6+ Ke8 e7 Kd7 e8R Kc6 d5+ Kb7 d7 g4 e6 f3 h7 g3 b5 g2 d6 f2 b6 Kc6 b7 Ra4 Nh3 g1Q Nd2 Kd5 Ne4+ Rd4 Be3 c1B Nf6+ Ke5 Qa4 Qc7 d8N Qgg7 d7 Rd6 Be2 f1Q Nf7+ Kf5 d8N Rd4 Bd1 Bd2 Bg1 Rd5 Rc1 Nh6 Rc5 Ba5 Ng4 Na6 b8R Bb7 Ra8 Qc8 Rh2 Qe2 Rg2 Nc7 Ra6 Rg8 h8N Bc6 Ng6 Be7 Rg3 Qd4 Rf3+ Ke4+ Rf5 Bg5 Rf6 Rf5 Nd6+ Kf3 e7 Kg2 Ne6 Rf2 Ref8 Bb6 R8f7 Qb5 Rg7 Rb2 Re5 Bd2 Rc5 Be1 Kg5 Bba5 h5 Qbb8 Re5 Qda7 Rc5 Qe8 Re5 Qbc8 Rc5 Nf5 h6 Ne3 h7 Bh4+ Kh6 Nf1 h8R Bb6 Rff5 Nh2 Rfe5 Nd5 Rhh7 Bd8 Rf7 Nc7 Rhg7 Rf8 Rf4 Rf5 Rf1 Rg5 Rf3 Bd5 Rf6 Bc6
1B3q1k/b2n2r1/2R5/K3Br2/bBN1qPBP/N3R3/2r1R2R/1bBR1r1Q w - - 0 1 legal: proof: c4 b5 h4 g5 e4 d5 cxd5 f5 exf5 h5 a4 Nc6 axb5 Ne5 g3 Ng6 hxg5 h4 Ne2 h3 Ng1 Nh4 gxh4 Be6 Rh2 Bd7 Rh1 Bc8 d4 Kf7 Kd2 Kg7 Kc3 c5 f4 a5 b4 e5 g6 h2 d6 e4 b6 a4 b5 c4 Kb4 c3 f6+ Kh6 d5 a3 b7 a2 b8B c2 f7 Kg7 b6 e3 b7 e2 Na3 e1R Bh3 Be7 f8B+ Kf6 g7 Rh5 Nf3 Rh6 Nd2 Rh7 Bg4 Ra5 Ndc4 Rf1 Bc7 Be6 b8B Bf5 Qf3 Rc5 d7 Bg6 d6 Rf5 Rb1 a1Q Rb3 Qd4 Re3 Qe4 Qh3 Qe8 d8R Kf7 Rd7 Nf6 g8R Rg7 Rh8 Qd8 Rh6 Kg8 Re2 Qe8 Qg2 Bd8 Re7 Nd7 Re5 Bh7 Ka5 Kh8 Be7 Qf8 Rf6 Nb6 d7 Bg6 Bc5 Be7 d8R Nd7 Bb4 Bc5 Ree8 Ba7+ Be5 Bh7 Rc6 Bg6 Bcd2 c1R Qg1 Rc2 Bc1 Nb6 Rd1 Nd7 Qg2 Bh7 Rg1 Bg6 Qh1 Bh7 Rgg2 Bg6 Qg1 h1B Rh2 Bh7 Re3 Bf3 Qh1 Be2 Nd2 Bb5 Ndc4 Ba4 Rd8 Nf6 R8d2 Nd7 Rde2 Bg8 Nd6 Ba2 Ndc4 Bb1
1BB3q1/1nR4B/4nqnr/P1R1Q3/3P1Rp1/KR3q1N/3R1Bb1/3NqkB1 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 h4 b5 f5 Ra6 g5 Rf6 gxf6 g5 Bg2 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 f8B Kd6 a4 Ke5 f7 Kf4 f6 Kg3 g6 e5 a6 h5 a5 c5 g7 c4 a7 h4 a8R e4 d6 c3 d7 c2 Nc3 e3 Qe2 h3 Bc5 b4 f8B h2 f7 b3 Bfd6+ Kh4 f8R b2 Ra7 b1N Nh3 Na3 Rc7 Ne7 g8B Nbc6 Bh7 Ng6 Rb1 Qg5 d8R Nb5 Nd1 Nbd4 Rb3 Ne6 Rf4 Kg3 Bb2 c1Q Bbd4 Qa1 Bg2 Nce5 Bb7 Nc6 d3 Bd7 Bc8 Qd5 Qb2 e2 Kd2 Kg2 Kc2 e1Q Bf2 Qf3 Bg1 Kf1 Qe5 Be8 Rdd7 Ncd8 Bcf2 Nb7 Rc5 Qd4 Rdc7 Bc6 Kb1 Qfd5 Ka2 Q5c4 Ka3 Bg2 Rf5 Qf4 d4 Qg5 Rf4 Qf6 Rf7 Qd5 Bb8 Qdd8 Rfc7 Qdf8 Bg8 Rh6 Bh7 Qg8 Rc1 Bd5 R1c5 Be4 Bh4+ Bf3 Be3+ Ke2 Rf1 h1Q Bg1+ Be4 R1f3 Qg2 Bhf2 Kf1 Rfd3 Qg3 Rd2 Bg2 Rc1 Qd3 R1c5 Qf3
nR2B1Bk/2RN2b1/Q1qrrP2/3B1bnn/5B2/2r1RNR1/q1q1RPB1/7K w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 c4 Kf7 g4 Kg7 b4 h5 b6 a5 g6 e5 g5 d5 b7 h4 c6 d4 b5 h3 c7 a4 c5 d3 c6 e4 b6 e3 Bg2 h2 Kf1 d2 Na3 Bb4 f6+ Kf8 g7+ Kf7 Ra2 Qd7 Qe2 Na6 b8R Rh3 b7 Bf8 Nf3 Nh6 Rg1 Kg8 Nc4 h1N Nce5 a3 Qb5 Kh7 g8B+ Kh8 g6 Bg7 Bd5 Nf7 Qd3 Qe8 Nd7 Ng5 Rb2 a2 Qb5 Nc5 Qa6 a1Q Rb3 Ra7 Ra8 Qe6 b8R Qa2 Rc3 Qe8 Rb2 Na4 Rab8 Nb6 Rd3 Bb7 c8B Na8 c7 Bc6 Rc2 Ba4 Rcb2 Bc2 Bcb7 Bb1 c8R Bc2 Rdb3 Bf5 Bbc6 Rb7 Rc7 d1Q+ Ne1 Rg3 Re2 Qdc2 Nf3 Rb6 Bb5 Rd6 Bd2 Rg4 Bbc6 Rc4 Ra3 Rc3 Bc1 Bf8 g7+ Kh7 g8B+ Kh8 Nb6 Qee4 Be8 Bg7 Nd7 Qea4 Bh3 Qb5 Kg2 Ng3 Rb3 Nh5 Kh1 Qc6 Rg3 Rd3 Bg2 Rc3 Re1 e2 Bf4 Rc5 Re3 Rc3 Rg1 e1R Re2 Rb1 Rge1 Rb4 Re3 Re4 R1e2 Ree6
N1BK4/1R2BBbB/k4b2/2Rq1rPQ/1rqR1Rnb/4B3/1NbP1Rb1/6n1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 c5 Kf4 Kc7 b4 Kb6 e4 h5 g4 a5 d6 f5 d7 c4 e6 a4 Ke5 f4 g6 h4 e7 c3 Kd6 a3 e5 a2 g5 c2 e6 h3 g7 f3 Ba3 c1B Nc3 h2 Na4+ Ka7 b6+ Kb7 b5 f2 Bh3 f1B Nb2 Bc4 Nf3 Ra7 Ne5 Rh4 Rf1 h1Q Qh5 Bd3 Nec4 Be2 Rf4 Nh6 g8B Qe4 Bh7 Bg7 e8R Na6 e7 Ra8 Ref8 Bd3 e8B Nb4 Bf7 Bc2 Bhe6 Qc7+ Ke7 Ra5 Rb1 Qce5 d8R a1B Rd4 Ng4 Kd8 Na2 Be7 Nc3 Bd7 Ne2 Bdf5 Ka8 b7+ Ka7 b8R Ng1 b6+ Ka6 b7 Q5d5+ Bd7 Qd3 Nb6 Q3c4 Na8 Be5 Rf2 Bd6 Bdf5 Bd7 Rff4 Bc6 Rc8 Rb5 Rf2 Bg3+ Bd7 Rb4 b8B Rh1 Rc7 Bh4 Ba7 Rh3 Rb7 Rf3 Rb5 Rf5 Rc5 Qg2 Bc8+ Bb7 Na4 Bcb2 Bb6 Bc3 Nb2 Qe4 Bc7 Qh1 Bf4 Qf3 Be3 Qc6 Rdf4 Bg7 Rg8 Bf6 Rg6 Bg7 Rd6 Bf6 Rdd4 Q6e6 Bd7 Bg2 Bc8+ Rb7 Nd3 Bh8 Rdd5 Baf6 Rdd4 Bhg7 Rb4 Qe4 Nb2 Qed5+ Bd7 Rb5 Rb3 Ra5 Rb8 Ra4 Rb7 Qe4 Bde6 Rb4 Bc8 Qed5+
NB4Nb/1qnb4/B1RQN3/2KP3B/4N1q1/N2RbBrk/n1rBPb2/5q2 w - - 0 1 illegal: No possible last move
r2B3B/b5r1/1PNrNnK1/Bb1NrBNP/R1B1N3/Q4n2/1qkqq3/5R2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 c5 Kg5 a5 e4 g6 b4 a4 d4 c4 h4 f4 h6 f3 h5 a3 h7 f2 e6 Kd6+ e7 c3 e5+ Kd7 d6 Ke6 b6 Kd5 e6 Ke4 d7 c2 b7 a2 b5 Qb6 e8B Qc7 d8N Ra5 d5 Nf6 e7 Qd7 d6 Nc6 b8N Ba6 Bd2 c1R Bc4 f1Q Qb3 Nd4 Qa3 Rd1 Ne6 Qe2 Nc6 Bg7 Bf7 Ra8 e8N Bh8 Nh3 Nf3+ Kh6 g5 Rf1 g4 N8c7 g3 Kg6 g2 Nd5 Qd8 d7 g1R+ Kh6 Rg7 b6 Rc5 Ba5 Bb5 Ndc3+ Ke3 Nd2 Re5 Nde4 Rd3 Bg6 Rd6 Rae1 a1Q Nhg5 Qb1 Bf5 Qa2 Ra1 Qab2 N4c5 Kd2 Nc5e4+ Kc2 Nd5 Qe7 d8B Qa7 Bd2 Qa5 Be1 Qad2 Ra2 Rc7 Kg6 Bg7 h8B Bh6 Nf7 Bf4 Nfg5 Bg3 Qb4 Rf7 Ra4 Rc7 Qa3 Rg7+ Kh6 Qdc1 Bb4 Qcd2 Ba5 Rdd7 Ndc7 Red5 Na6 Bb8 Nac7 Re5 Nd5 Ba7 Nef4 Rgf7 Nfe6 Rd6 Kg6 Rg7+
3Nkn2/n3n2b/Q3R1N1/P5bR/1Rb3Pq/K2rpB2/R1B1Rq1B/r1B3B1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 e5 Kd2 b5 Kc2 c5 Kb3 h5 f4 e4 g4 h4 a4 h3 d6 h2 d7+ Ke7 g6 c4+ Ka3 c3 f6+ Kd6 d5 c2 f7 Ke7 f5 Bg7 f8R Be5 a6 Rh7 g7 Bc7 a7 Qe8 d8R Rh8 a5 Qh5 Nh3 Ba6 Bd3 Rh7 Rf6 Qf7 Qf1 Rh8 Nd2 Nd7 Nc4 Qe8 Nf4 Nb8 Ra2 Qf7 Nd6 Nd7 Nb7 Nf8 Rb8 Bd8 d6+ Ke8 Ng6 Ne7 g8R Rh4 Re6 b4+ Kb3 Rh3 f6 Bc4+ Ka4 b3 Ka3 b2 Rh8 b1B Rh5 Bb3 Qe2 Rf3 Re1 h1Q Qf1 Qh4 Re3 Qg7 Re2 e3 f7+ Kd7 Bf5 Qgf6 Be4 Bc4 Bd3 Nh7 f8B Ke8 Bg7 Qf5 Be5 Nf8 Bh2 Rh3 Bg1 Qff2 Be4 Rh1 d7+ Kf7 Bb2 c1N Bc2 Nb3 Bc1 Nd4 Bf5 Bc7 d8B Bf4 Bc2 Ndc6 Bc7 Bg5 Nd8+ Ke8 Rb4 Rb8 a8B Na7 Be5 Rb7 Beh2 Rd7 Bf3 Rd5 Bd1 Be4 Bc2 Rd1 Nh8 Bh7 Ng6 Rd3+ Kb2 Qg2 Bd2 Nc8 Rf2 Rd6 Ka3 Bd5 Qa6 Bc4 Re2 Na7 Bf2 Ra1 Bfg1 Qgf2 Bc1 Rd3+
2Br1n2/RpNr2Rn/1q1B1N2/1B4q1/nP4KN/kP1B4/b4NN1/1QnB2r1 w - - 0 1 legal: proof: h4 d5 f4 g5 hxg5 e5 fxe5 d4 a3 Bb4 axb4 d3 cxd3 Kd7 d4 Ke7 d5 Ke8 Kf2 Kd7 Kf3 c5 e4 h5 d4 a5 g4 f5 e6+ Kd6 b3 a4 e7 c4 e8B h4 g6 a3 g7 h3 e5+ Kc7 g5 Kb6 d6 f4 d5 c3 d7 c2 e6 a2 g6 h2 e7 Ra4 d6 Ra3 Kg4 f3 Nc3 f2 Bd3 f1Q Nf3 Ra6 Bf4 c1N Nh4 Qf2 Rg1 h1N Ne4 Kc6 Qf1 Qfb6 Nf2 Kd5 Qd1 Ne2 Qb1 Nhg3 Bf7+ Kd4 e8B Kc3 Bd5 Ra4 Bf3 Nc1 Bd1 Ra6 Rg2 Nge2 Bh2 Ne7 g8B Nd5 g7 Rh7 Be6 Ra8 g8N Qg5+ Kf3 Nf6 d8N Rf7 Beb5 Nh7+ Nf6 Nd7 Rg4 Ndf8 d7 Rg7 Bd6 Re7 Bef5 Rf7 Ne6 Rg7 d8N Rd7 Nf4 Rb8 Bde4 Ra8 Qd3+ Kb2 Qb1+ Ka3 Nde6 Nc3 Bed3 Na4 Nc7 Rd8 Bfe4 Bf5 Nfg2 Rd7 Bd5 Rad8 Be6 Re7 Bc8 Red7 Qc2 Qh6 Rg7 Qg5 Rb1 a1R Rb2 Be6 Qb1 Bf5 B1c2 Be6 Be2 Nd3 Qe1 Nac5 Ncd5 Bf5 Nc7 Rc1 Rb1 Ka2 Ra1+ Kb2 Ra8 Na4 Ra7 Ka3 Bf1 Ra1 Qe4 Re1 Bd1 Nc1 Bfc4 Bh3 Qg6 Bf5 Bf1 Bb1 Qe4 Ba2 Qb1 Qd2 Bfd3 Rg1 Kg4 Qg5+
4q3/QKpb4/1n1N1r1N/B2B1p1P/r3b2R/B1B2r1b/1RPNkN2/1N2n1B1 w - - 0 1 illegal: No proof kernel
7r/1n2Rr1N/3B2pP/nKR3P1/4B1q1/B3Nbrq/Q1p2k1b/BB2NNN1 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 f4 h4 fxe5 h3 Qc2 Bd7 Qh7 Be6 Nxh3 Bd7 Ng1 Bc8 b4 Ke7 d4 c5 Kd2 a5 Kd3 f5 Kc4 a4 h4 a3 g4 a2 e4 f4 b6 f3 e6 Kd6 g5 g6 e7 f2 e8B Nd7 b5 Qe7 b7 Rb8 e5+ Kc7 h5 Kb6 h6 Qg7 e6 Ra8 b8N Bb7 e7 Qf6 d6 Be4 d5 Bg7 Nd2 Bb1 Nc6 Ra7 Ne5 Qe6 Nef3 Nf8 d7 Qd6 d8N Bc2 Ne1 Qc6 d6 Rc7 d7 Bd4 Qf7 Be3 Ne6 Bd1 d8B Qd7 Ba3 Bg4 Nd4 Bf4 Bd3 f1Q Ndc2 Ne6 Rc1 a1R Ne3 Qh3 Ndf1 Bh2 Bb1 Bf3 Rc3 Qc8 Bc6 Qd7 e8N Ne7 Bd5 Nc6 Bf6 Ned8 Bde4 Nb7 Rc2 Ra2 Ba1 Qdg4 Nf6 Rd7 Qe6 Rf7 Nh7 Rb2 Rc3 Rg2 Qd5 Rg3 Qd2 Kc7 Qa2 Kd6 b6 Ke5 Kb5 Kf4 Rc2 c4 Re2 Nbd8 b7 c3 Rc2 Na5 Re2 Ke5 b8B+ Kd4 Bbd6 Qhh4 Nh3 Ndb7 Rg1 Qhh5 Rgg2 Qhh4 Ng1 Qhh3 Rgf2 Bg2 Rf5 Bf3 Rb2 c2 Re5 Qhh4 Re7 Qhh3 Nd1 Nd8 Ka4 Ndb7 Rb3+ Kc4 Rc3+ Kd4 Kb5 Qhh5 Nb2 Qhh3 Rc5 Rc8 Nd2 Ke3 Nf1+ Kf2 Nc4 Rd8 Nce3 Rh8
N3nB2/1k4K1/pB6/3p3q/NBPRP1b1/NQNr3B/r2q1Nn1/b3R1rB w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 d5 Kd4 Kd7 e4 Kc7 b4 f5 c4 f4 h4 f3 b6+ Kc6 b5+ Kb7 e6 f2 Ke5 a6 h6 g4 e7 g3 e8N g2 h5 Bh3 c6+ Kc8 h7 Nf6 h6 Ng8 c7 Bf5 b7+ Kd7 c8B+ Ke7 b6 Ra7 Bd2 Bd7 Bb4+ Kf7 Nc3 Bf5 Qb3 Qc7+ Nd6+ Ke7 Rd1 Kd8 Rd4 Qc6 Ndb5 Nf6 Na3 Be6 Nh3 g1R Bg2 f1Q Nf2 Bf7 Bch3 Qd3 Kf5 Bg8 Kg6 Nbd7 b8N Bg7 b7 Nc5 Nd7 Kc7 b8N Kb7 Nb6 Qd2 N8d7 Be6 Nba4 Ne8 Ndb6 Nd3 Na8 Bg4+ Kf7 Ra1 Re1 Nf4 Bh1 Ng2 Bf8+ Qb6 Bb4 Rg8 h8B Ra2 h7 Qd8 Kg6 Q8g5+ Kf7 Bf6 Bg7 Be5 Bgf8 Qh5+ Ke7 Rg6 Kf7 Rf6+ Kg8 Rf3 h8B Re3 Bf6 Rd3 Bd8 Bg7 N8b6 Ra8 Bc7 Rd8 Na8 Rd7 Bb6 Rf7 Nfd1 Rf1 Nf2 Rg1 Ne2 Rc3 Rd3 Qc1 Rd2 Rg3 Rdd1 Ba1 Rd4 Qd2 Nec3 Qhg5+ Kh7 Rd3 Kh8 Qh5+ Kg8 Nc7 Kg7 Ne8+
nN1B3n/1KbR1P1q/r2BQR2/B3rR2/1q3qpB/R4P1p/1k2bN2/6RB w - - 0 1 illegal: No proof kernel
3B1kN1/Pp2N1N1/1NB3p1/rbQ2q1r/PB3K1B/q1n1N1R1/5R1n/2bB3n w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 c5 Kg3 f5 a4 c4 d4 c3 h4 c2 e4 Qb6 h6 Qa7 h7 Nc6 e6 Nd8 a6 Bb4 e7 Be6 e5 Ba3 h5 Qb8 d6 Qa7 d5 Rb8 h6 Qc5 d7+ Kf7 e8N Nc6 d8B Qc4 d6 Qd5 a7 Rc8 d7 Bb4 Nc3 Kf8 Bh4 Qa5 d8B Qb5 Rh2 Na5 Be2 Ne7 Nf3 Qd7 Qd6 Rc5 Bd1 Rc6 Nd4 Ba3 Rf2 Bc5 Nd5 Ra6 Kf4 Ba3 Nb6 Nc4 Qc5 Nd6 Bd2 c1Q Nc2 Ne4 Ne3 Ng3 Bb4 Bc4 e6 Ra5 Raa2 Bb2 Ra3 Nh1 Rb3 Bb5 Rc3 Rg8 h8N Qd3 Nf7 Rh8 h7 g6 Ng7 Qa1 Ne5 Qa3 Nc6 Bc1 Rb3 Rg8 h8N Qc2 Kg5 f4 Nf7 f3 Nh6 Rh8 Ng8 Rh5+ Kf4 Qb1 Rg2 f2 Rb2 f1N Rg3 Qad3 Rf2 Qd6+ Kf3 Nd5 e7+ Kf7 e8B+ Kf8 Nce7 Nc3 Bc6 Qdd3 Nf6 Nh2+ Kf4 Qb2 Nfg8 Qa3 Nbc8 Qc2 Nb6 Qf5+
3qBR2/1bP3qk/Nrp1Nq2/2PRNrr1/1RQ2R1B/K1pn2N1/7N/2b2R2 w - - 0 1 illegal: Other
3qB3/Q2NBbpK/1N1RP1np/1r1bN3/1bB2n2/4B1kN/N2B2P1/3bR2n w - - 0 1 illegal: No proof kernel
3N2R1/1bNN3p/1b4Rp/n1P2B1p/NPN4R/2n1Rr1Q/kB1R1q2/2Kr3n w - - 0 1 illegal: Other
1B1BR3/P1b2n2/5q1b/k1p3PB/1rR1B3/1Rp3n1/1KBRQpN1/2R1Nr1b w - - 0 1 illegal: Other
K1Q1B3/4n1q1/3RN3/prqpp1B1/kB1NBR1n/B2RP3/2PRb1R1/4b1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 c5 a4 c4 axb5 c3 dxc3 Bb7 c4 Ba6 c5 Bc8 Kf2 e5 Ke3 f5 b4 a5 h4 f4+ Ke4 d6 Kd5 Kd7 h6 f3 h5 f2 c6+ Kc7 g6 Kb6 g7 Qd7 e3 Qf5 h7 Qg5 h6 Qh4 c7 Qd8 Ne2 Ba6 c8B Qe7 Bg2 f1Q Ra4 Qf4 Ba3 Qff6 Be4 Qf3 Nbc3 Qf1 Rh2 Qe1 Bd7 Qg5 Be8 Qf4 Nd4 Qeh4 Qg4 Qf5 Ne6 Qf4 Ne2 Ra7 N2d4 Rd7 Rd2 Ka7 b6+ Kb7 b5 Ka8 b7+ Ka7 Rb4 Nc6 b8R Qff2 Rd8 Qhf6 b6+ Kb7 Rb3 Rf7 Rbd3 Bb5 Bb4 Ka6 b7 Rc7 b8B Rb7 Ba7 Qg1 Bac5 Qe7 Ba3 Qc7 Bcb4 Be7 Rd7 Bh4 Rf7 Be1 Rf4 Na7 Qh3 Nc8 Qg4 Qe7 Qh3 Bc4+ Kc6 d5 Qf5 Nd6 Qg4 Nf6 g8R Nf5 Qh3 Nh4 Rgg2 Rg8 h8R Qf8 h7 Rb5 Qg4 Rg7 Rg8 Rg5 Rg6 Ng8 h8B Qe7 Bf6 Qc5+ Kd7 Kb6 Rh6 Rg6 Bg5 Ne7 Qf5 Nc6 Kc8 Ne7+ Kb8 Rg8 Rc3 Be2 Rcd3 Rg7 Ka8 Ka6 Rh2 Qg4 Rg2 Rg8 Bf6 Qg7 Bg5 Rb7 Nc6 Kb5 Rg6 Ka4 Ncd4+ Rb5 Qf8 Nef5 Rf6 Qc3 Qc5 Ne7 Qc8 Qc5 Nf8 Rh8 Rd6 Rh6 Nfe6 Rf6 Rfg4 Rf1 Rf4 Rg1
2Rb4/1QBP2pr/N1NNBR1N/5q2/1P1K1k2/pp3nq1/B1b3n1/2r1B1BN w - - 0 1 illegal: No proof kernel
K1n1bBqN/3P2nR/Nn2k1pr/2r3Pp/B7/N1NQ4/1pqR1B1B/B6N w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 h4 a3 h5 g6 h6 Bg7 hxg7 Ra5 bxa3 Bd7 a4 Ra8 a5 Bc8 Ke2 Kf7 Kd3 c5 Ke4 e5 d4 b5 a4 h6 g4 b4 f4 b3 a6 c4 d6 c3 Kd5 c2 a5 e4 a7 e3 d7 e2 f6 e1N f5 Qf8 d8B Nf3 a6 Qa3 g5 Nd7 Kc6 Qf8 d5 Nc5 d6 Ne4 d7 Nh2 Bb5 Nd6 Bb6 Rb8 a8N Qe7 a7 Nc4 Ba4 Qb4 Nc7 Ng4 a8N Nf2 Bb2 c1Q Nd5 Ba6 Ne2 Qe7 Qd3 Ng4 Ng3 Rb7 Ra2 Nd2+ Ndc3 Ne3 Na3 Qd1 Ba1 Qc2 Nc7 Ng4 Bf2 Bc4 Na6 Qe8 Rh3 Qf8 Nh1 Rc7+ Kb6 Ne7 g8N Rc8 Kb7 Rc5 Rh5 Nc8 Ka8 Ne3 Rh4 Qe8 Rh5 Kf8 f7 Be6 Rh3 Ndc4 Rh5 Kg7 f8B+ Kf7 f6 Nf5 Bd6 Ng7 Bh2 Bd5+ Kb8 Ke6 f7 N4b6 f8B Qb1 Rd2 b2 Ne7 Qd8 Nc6 Qc2 Ne5 Ba2 Nf7 Bc4 Be7 Qg8 Bf8 Rh7 Nh8 Ba2 Rh3 h5 Rf3 Rh6 Rf7 Ne8 Rh7 Ng7 Qd4 Kf5 Qe3 Bf7 Qd3+ Ke6 Kb7 Be8 Kb8 Nc4 Ka8 N4b6+
q1BR1R2/pq1p4/1R1r3k/2P2R2/pNNnQNqn/P2N1N2/b3KB2/5R1r w - - 0 1 illegal: Other
6N1/1Bn2ppp/3p3r/2N1P1N1/b2BR1N1/RB2bQ2/nbN3PB/rK3B1k w - - 0 1 illegal: No possible last move
bN2Bk2/1pBBRn2/N1n1p2r/QP1NPr1q/2BN4/2b1n2K/5R2/N1q1B1b1 w - - 0 1 illegal: Other
Nk2KRR1/1BRR3p/p2N2QP/5qqr/P2B1R2/1n1qrNb1/6b1/3NnqN1 w - - 0 1 illegal: No possible last move
3B2b1/n1p1Nk2/BB5R/b1Bp3r/RRPP1nq1/3Q1N1r/1p1K2Rr/2Rb1B2 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 a5 hxg5 Nf6 b4 Ng8 bxa5 Bh6 Rh5 Bg7 Rh1 Bf8 d4 b5 f4 e5 g4 h5 a4 e4 c4 e3 a6 b4 a5 h4 a7 h3 g6 e2 f6 h2 g5 b3 f7+ Ke7 a6 b2 f5 d6 g7 Nc6 g6 Nh6 g8R Ne5 f6+ Ke6 g7 Nhg4 Nc3 Nd3+ Kd2 e1R Nf3 Qe7 Nd5 Rb8 a8B Rh5 a7 Ndf2 Bb7 Ne5 a8R Nfd3 Ba6 Qd7 Ne7 d5 Qb3 Nf4 Qd3 Re3 Ra4 Neg6 Rb4 Ne5 Rh8 Nc6 g8R Na7 Rg2 Bh6 f8B Kf7 Rhg1 Qg4 Rh1 Bg5 Rh6 Be6 Rhg1 Ke8 Rh1 Bg8 Rhg1 h1B f7+ Kd7 Nf5 Kd8 Bc5 Be7 f8B Ke8 Bb6 Kf7 Re2 Bh4 Bfc5 Bf2 Ne7 Be1+ Kc2 Rh2 Reg2 Re5 Be3 Reh5 Bf2 Rd8 Bh4 Rh3 Ra4 Ba5 Rb4 Rh2 Kd2 Rd6 Nf5 Re6 Bd8 Re5 Ne7 R5h3 Be2 Rg5 Rc1 Rgh5 Bf1 Nb5 Rf2 Kf8 Bb7 Kf7 Ng1 Bf3 Rg2 Bd1 Ra6 Na7 Nf3 Nc8 Ba7 Bb6 Raa4 Ba5 Bab6 Na7 Bc8 R5h4 Ba6 Rh5
2n5/R1P2B1N/5Q1R/4B1Q1/6B1/B1KBbRbq/n1prPB2/N4bqk w - - 0 1 legal: proof: b4 b5 f4 d5 g4 c5 a4 e5 axb5 a5 fxe5 h5 bxa5 d4 gxh5 d3 cxd3 Nf6 d4 Ra6 d5 Rc6 bxc6 Ng8 d4 Ke7 Kd2 f5 h4 g5 a6 g4 a7 f4 a8B f3 c7 f2 e6 Kf6 h6 Kf5 h5 Kf4 d6 Kg3 d7 c4 d5 Qf6 d8Q Qg6 h7 Nf6 e7 Bd7 e8B Bc5 d6 Ba4 d7 Qe4 h6 Nc6 Kc3 Qg2 Ba3 Na7 Qd2 Qe4 Bh3 f1Q Bf7 Qef5 Be4 Q1f2 Nf3 Bc6 Bd3 Be3 Ng5 Nc8 Rf1 Qg1 Rf3+ Kh2 Qe7 g3 d8B g2 Bg4 Rf8 h8B Kh1 h7 Bf4 Bg7 Bg3 h8R+ Qh7 Qe6 Qh3 Rh6 Bd5 Bde7 Rd8 Nh7 Rd7 Qg5 Ne4+ Kc2 c3 Nd2 Bb7 Bec5 Rd4 Kb3 c2 Be5 Nc3 Qef6 Na2 Kb2 Rd5 Nb3 Bc6 Bf2 Bb7 Bb5 Rd2 Bd3 Qf1 Rf5 g1B Rf4 Bg2 Rf3 Nb4 Ra2 Qc1+ Kc3 Bf1 Na1 Qd1 Be1 Be3 Bf2 Qb1 Bb2 Qd1 Ra7 Qe1 Ba3 Na2+ Kc4 Bg2 Kb3 Qg1 Kb2 Bf1 Kb3 Nb4 Kc3 Na2+
3BqQ2/2B5/1n1p1P2/BBkN1p1b/1RrR2N1/qK1Q1N2/5P2/1n1Bq1B1 w - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 e4 a5 d4 c5 dxc5 e6 a4 Qf6 axb5 Qh6 b6 Ne7 c6 Ra7 e5 Rb7 cxb7 Qf6 exf6 Ng8 Ra4 Kd8 Ra1 Bc5 bxc5 Ke8 Kd2 g5 Kc3 g4 h4 g3 h6 a4 h5 a3 c6 e5 c7 e4 h7 g2 h6 a2 Qd3 e3 Nf3 g1Q Kb3 e2 c4 e1Q c5 Ne7 c6 Rf8 h8B Qg6 h7 Nd5 Nc3 Nf4 Rb1 a1Q Bd2 Qg5 Nd5 Ne6 Be2 Qf1 Bg7 Qd4 h8N Qgf4 Bd1 Qd6 Rh4 Qh1 Ng6 Rf7 Nge5 Ng5 Ng4 Qf1 Ba5 Qe1 Bf8 Q4e5 Be7 Ne4 Bd8 Nc3 Rb2 Nb1 Rd2 Na6 b8B Bb7 c8Q Nb4 c7 Ba6 b7 Rh7 Qc3 Be2 Rd4 Kf7 Qd3 Ke6 Be7 Qc5 Qf8 Qc1 c8B Qa3+ Kc4 Qe3 Bh2 Rg7 b8B Rg6 Nc3 Nd5 Ba6 d6 Bb5 Rg7 Bed8 Rc7+ Bc6 Rc8 Bbc7 Qe5 Bg1 Qe3 Bca4 Nb6+ Kb5 Kd7 Nd5 Qe8 Bac2 Na4 Kc4 Kc6 Bb3 Qa1 Bbc2 Nb6+ Kb3 Kc5 Rb4 Bf1 Be2 Bg2 Bcd1 Bh3 Ngh2 Bg4 Bf1 Bh5 Rhd4 Na8 Bfe2 Nb6 Ng4 Qa3+ Kc2 Na4 Qe4 Nbc3 Bb8 Nb6 Bb5 Nb1 Qd3 Rc7 Rf4 Re7 Bbc7 Qc1+ Kb3 Re4 Nfe5 Rd4 Nf3 Rc4 Rd4 Qa3#
R4B2/3qR2b/Qr1R4/1RN3QP/1rK1NNq1/2Rn2nP/b5rk/1RnB4 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Bb6 Bh3 Ba6 Bf1 Ba5 bxa5 Bc8 d4 Kd7 Kd2 c5 Kc3 f5 e4 g5 b6 g4 d6 Ke6 b7 c4 d7 g3 d5+ Kf7 e6+ Kf6 a6 Ke5 h3 g2 a7 f4 e7 a3 e8N f3 d6 a2 Be2 f2 Ba3 Kf4 e5 Kg3 e6 f1B e7 Qc7 d8Q Na6 b8R Nh6 d7 Nb4 Nd6 Nd3 e8R Rg8 Nd2 Nf5 Rc1 a1R Qa4 Rb1 Bd1 Rb6 Re7 Bb7 Qa6 Bd5 Rb7 Rb8 a8R Rg4 Qg8 Qc8 d8R Qd7 Nb3 Be2 Nf3 g1Q Ng5 Qg2 Re1 Kh2 Ne6 Ng3 Nf4 Be6 Kd4 c3 Nc5 c2 Qg5 Ba2 Rf1 Rb3 Rb5 Rb6 Kc4 Qg1 Rb1 c1N Rf3 Bf1 Rfe3 Bg2 Bb4 Be4 Rf3 Bh7 Nde4 Nge2 Re3 Rg2 Rf3 Ng3 Re3 Qg4 Rd6 Qf2 Ba3 Qff3 Bb4 Qd7 Ba3 Qfg4 Rf3 Ne1 Rc3 Ned3 Rc6 Nce2 Rg7 Qe8 Nd7 Qf5 Bf8 Nec1 Re7 Qg4 Ndc5 Qed7 Rd6 Rb4#
1n6/2N1B3/1qP3BQ/rBr4r/Q3bBRb/4Nq1n/bk1BKQP1/6RB w - - 0 1 illegal: Other
2Rnb1n1/4BP2/8/KQ5r/2Rq1kBb/RB1B3B/b1Nn1Pqr/Q3B2N w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 d4 Kf7 Kd2 c5 Kc3 e5 g4 h5 d6 e4 a6 e3 f6 Ke6 d7 h4 d5+ Ke5 d6 e2 a7 e1N g6 h3 g7 h2 g5 c4 Kb4 c3 b6 c2 b7 Nf3 g6 Nh4 Ra3 Qe8 d8R Rh5 Bd3 Nf3 Ne2 Bf5 Rc8 Rh8 Ka5 Rh6 d7 Be6 d8B Bd7 Be7 Na6 b8Q+ Nc7 Ng3 Nd2 Qb5+ Kf4 Bb2 c1Q Bc3 Nf1 Be1 Rb8 a8B Rh5 Bg2 Qc6 Bh3 Nd2 Rf1 Qc5 Nh1 Ne6 Rg1 Nd8 Rg4+ Ke5 Rc4 Qf7 Bdf5 Be8 Bd3 Qfd5 Qc1 Qg2 Bg4 Nh6 g8B Bg7 B8e6 Ng8 Qd1 Bh6 g7 Bg5 Bh3 Bh4 Beg4 Rb7 Qc1 Rd7 Qd1 Rd5 Qc1 Qd4 Qc3 Kf4 Qa1 Nh6 g8B Rde5 Bgh7 Ng8 f7 Re6 Bc2 Reh6 Bhd3 Rh7 Ng3 h1B Ba4 Qc6 Bb3 Bd5 Nh1 R7h6 Raa4 Be6 Na3 Qg2 Nc2 Rh7 Ra3 Bd5 Ba4 Be6 Rcc3 Bb3 R3c4 Ba2 Bb3 Bg3 Bf3 Rh4 Be6 Rh2 Bh3 Rh5 Bfg4 Bh4
kNN1qR2/1n1bP2B/8/q1B1B3/1rRB2q1/1K3P1R/n3Q1Rr/N1B2br1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 d5 cxd5 Kd7 a4 Ke7 axb5 Ke8 Nh3 f5 Nc3 e4 Ra2 Qf6 Nb1 Bd6 Ra1 Be5 fxe5 f4 Kf2 f3 Ke3 f2 Ng1 Qf3+ exf3 Kd7 Ke2 Ke8 d4 Kd7 Kd2 c5 Kc2 Kc7 b4 Kb7 h4 g5 d6 a5 d7 g4 d8B a4 b6 c4 b5 a3 d5 g3 h6 e3 h7 g2 h5 c3 h6 a2 e6 e2 e7 e1R d6 Re6 d7 Na6 Ne2 g1Q Nd4 Nb8 Rh2 Re3 Nd2 Re1 Qe2 Nf6 Ne4 Ng4 Nb3 Qg3 Rg2 Ra3 Nd6+ Ka8 b7+ Ka7 Ba5 Qf4 d8R Na6 b8N Ne5 b6+ Ka8 Bb4 Bd7 Rf8 Nc4 Bc5 Qg4 Nc8 Ra4 Rb1 Na5 Na1 Rd1 Rb4 Nb7 Kb3 c2 Rd4 Nb4 Rc4 Rg8 h8R Rd2 h7 Rg6 Ba3 c1Q Bb2 Qe1 Bc1 Rg7 Rhg8 Rc2 h8B Qd2 Rg3 Qdg5 Bh3 f1B Rg2 Q4h5 Bf5 Qgg4 Bh7 Qe8 Rg3 Rg6 Rh3 Rg5 Bhd4 Rg7 Qd1 Rh2 Qe2 Rg5 Nc2 a1Q Rg6 Ra6 Rg7 Qa5 Na1 Na2 Rg6 Qf4 Rgg8 Rg1 Rg2 Qf5 Qd1 Qe1 Qe2 Nd6 Nc6 Ra4 Na5 Qg4 b7+ Kb8 Nc6+ Kc7 b8B+ Kb7 Qe5 Qa5 Qe2 Ka8 Bc7 Nb7 Nb8 Qf4 B7d6 Qg4 B6e5 Rb4+
2R1BbQR/KQ1P2P1/N2n1q2/1Bb1k1NB/4n3/1Q1qB2B/3rb1B1/5rq1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 Kf2 Kd7 Ke3 h5 Kd4 f5 g4 f4 e4 h4 g6 c6 a6 f3 d6 Ke6 Kc5 f2 d4 h3 b6 h2 g7 Qe7 d5+ Kf7 a7 Nf6 g8B+ Kg7 e6 Rh3 g5 Qf7 b7 Rh8 Kb6 c5 e7 c4 e8B c3 g6 c2 e5 Bg4 d7 Rh3 d8Q Be7 e6 Bd6 e7 Be5 d6 Bg3 d7 Be6 Be3 c1B Qb3 Bg4 Nd2 Ba3 Ngf3 Bgd6 Ne4 Nc6 b8Q Na5 Nc5 Nb7 Rc1 Ne4 Ng5 Kf6 g7 Be2 Na6 Ke5 Rc8 Rf3 Bh3 Qf6 Bh5 f1Q e8B Rf4 Bc4 Bc5+ Kc6 Qg1 Bb5 Rf1 Qbc7 Rb8 a8B Qg3 Qb6 Bf8+ Kc7 Nbd6 Qb7 Qe1 Kc6 Qd2 Kc7 Qd3 Kc6 Bb4 Kb6 Ba3 Ka7 Bb4 Rg1 h1Q Rg4 Qg1 Rh4 Bd1 Qa5 Bg4 Qaa2 Be2 Qg8 Ba3 Qab3 Bb4 Qc7 Rb6 Bd5 Rc6 Qb7 Rc2 Bdc6 Rd2 Bd5 Nc5 Bdg2 Ba3 B5g4 Bb4 Rh8 Nce4 Bgh5 Bc5+
Nq1rkrN1/4N2B/3R2nB/1N1P2Pb/4r1r1/3b1Bq1/RQ2nK2/Q4N1N w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 b4 a5 d4 c5 d6 h5 d5 c4 d7+ Ke7 b6 c3 f6+ Kd6 f7 Ke7 f8N e5 b7 e4 b5 a4 b6 c2 Bb2 c1Q Kf2 a3 Ra2 h4 Nh3 Ra7 Nd2 Ra4 Be2 Nc6 b8Q Rd4 b7 Qc3 Bf3 Qb3 Ne6 e3+ Kg2 e2 Qa1 e1R Nf1 Rde4 Nf2 Nd4 Nc7 Ne2 Na8 Qdb6 d8N Ke8 Bd4 Ne7 g8B Bf5 g7 Ng6 Bh7 Rf8 g8N Rb1 Bg7 h3+ Kh2 Qd3 Bh6 Rbb4 Ne6+ Qd8 Qbe5 Qb8 Qb2 Bg4 Qa1 Bh5 Nec7+ Kf7 Nb5 Rd8 Rc2 a2 Rc6 Rg4 Rd6 Rbe4 Qeb2 Ke8 Rg1 Qc3 Nh1 Qa3 Rg2 Qe3 Qab1 a1R Rf2 Raa4 Q1a1 Ref4 Rg2 Rae4 Rf2 Rf8 Rg2 Qc7 b8N Qa3 Nc6 Qb8 Nce7 Qc3 Nhg3 Qe3 Kh1 h2 Rf2 Qb3 Kg2 h1B+ Kh2 Nd4 Kg1 Qc3 Rc2 Ne2+ Kf2 Bg2 Nh1 Qa3 Nfg3 Bf1 Rd2 Nd4 Rc2 Bd3 Nf1 Qb3 Rc4 Qc3 Ra4 Ne2 Ra3 Qe5 Ra2 Qg3+
1RBk4/q2n4/5rbK/2R2B2/Bq1Pqn1N/b2BBNbP/3BR1b1/2Q3Q1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Nh6 d5 Ra5 bxa5 Ng8 Kf2 g5 Ke3 f5 d4 c5 a6 a3 e6 a2 h6 c4 b6 g4 Kf4 c3 e4 c2 d6 g3 h3 g2 h7 Qf6 d7+ Ke7 d8B+ Ke8 a7 Nd7 a8B Bc5 e5 Nh6 e7 Rf8 h8Q Ba3 b7 Ng4 b8R Bb2 Qg7 Nb6 Nd2 Ne3 Ngf3 g1B Bd3 Bf2 Qgg1 Kd7 Bae4 Qc6 Kg5 f4 Rh2 Bg3 Re2 Ned5 Nh4 Ba3 Ndf3 Rf6 Be3 c1Q Bf5+ Qe6 Kh5 Qc4 Rc1 Qb4 Rc5 a1Q Qc1 Ke8 Bc7 Nd7 Ba5 Qc6 Kg5 Qa8 Kh5 Qa7 Kg5 Qab2 Kh5 Qe1 Bad2 Qb4 Nh2 f3 Kg5 f2 N2f3 Kf7 e8B+ Ke7 e6 f1B Bh5 Bb7 Bhg4 Bg2 Kh5 Nf4+ Kg5 Kd6 e7 Be4 e8B Ke7 Qh1 Nf8 Ba4 Nd7 Qg1 Nf8 Bc8 Kd8 Bgd7 Bg6 B7f5 Nd7 Kh6 Qf1 Qc2 Qfb1 Qcc1 Qc2 Re5 Qc6 Rc5 Qe4
1Q2n1nQ/1q6/3R1nBB/2P2N1q/2R2n1K/1b1B2NP/k3b1b1/B2BQrB1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 g4 d4 Bg7 dxc5 Bh6 Bd2 a5 Bc3 Bg5 hxg5 h5 Ne2 h4 Bd2 h3 Bc1 h2 Ng1 Rh3 gxh3 Ra6 Kd2 Rh6 Ke1 Rh8 b4 Kf7 c4 e5 f4 d5 Kf2 a4 Kg3 e4 f6 Ke6 c6 e3 f7 e2 f8Q e1N f5+ Ke5 g6 a3 c5 d4 f6 Kd5 c7 a2 b6 d3 b5 Kc4 g7 Qe7 b7 Nf3 b6 Nh4 f7 Qe3+ Nf3 Be6 c8B Rh5 Bb2 Qd2 Nc3 Qe3 Ne4 Nd7 b8B Rf5 b7 Ndf6 Qe1 Kb3 Rc1 a1Q Rc4 d2 Bd3 Qa8 Ba1 d1B Qe8 Qa7 f8B Ka2 Qh5 Rf4 Qh8 Be2 Bd7 Bf7 Bf5 Bd5 Rf1 h1B Bg6 Bg2 Bc7 Rf5 b8Q Qb7 Bf4 Bf7 Bh6 Be6 Bd6 Bd5 Bde5 Rf4 Bed4 Nf5+ Kh2 Qf2 Nh4 Qf3 Ng3 Nd6 Nhf5 Nde8 Bg1 Be6 Rb4 Bb3 Rc4 Qfe4 Rf3 Qed5 Re3 Rf1 Re6 Qe4 Rd6 Qf3 Nh1 Qfc6 Kg3 Qf3+ Kh4 g3 Nf2 Bh1 Ne4 g2 Bge3 g1N Neg3 Bg2 Bf2 Bed1 Bfe3 Ne2 Bg1 Ne7 g8B Nf4 Bd5 Be2 B5e4 Neg8 Bc2 Ba4 Bed3 Bb3 Bd1 Qh5+
1B1QR3/1R6/q2P1n2/R2N1Nn1/2k3K1/2Bq1B1B/bbr1PbBQ/1bB1n3 w - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 gxf5 g5 h4 d5 cxd5 e5 fxe5 g4 a4 Ra6 axb5 Rh6 Rh2 Rh5 Rh1 Rg5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kd7 Kg3 h5 b4 c5 d4 c4 g6 a4 b6 a3 b7 a2 b5 c3 g7 c2 f6 Ba3 b6 Bb2 d6 Ke6 d5+ Kf7 e6+ Kg6 f7 Kf6 f8R+ Ke5 d7 Nf6 g8B Na6 b8Q+ Ke4 e7 Nc5 e8B Ne6 b7 Ng5 Nf3 Rh7 Kh4 g3 Bh3 g2 Qh2 g1B b8B Re7 Nd4 Bf2+ Bg3 Ba6 Nf5 Bd3 Bg6 Re6 B6f7 Rc6 Re8+ Qe7 Be6 Qa3 d8B Bc4 Ba5 Qd3 Bc3 Rc5 Na3 Rc7 Rb1 a1Q Nb5 Qa6 Bh7 Rc6 Nc7 Ba2 Ra1 Bb1 Ra5 Ba2 Be3 c1N Bg2+ Nf3+ Kh3 h4 Bg6 Bb1 Bh5 Ba2 Be1 Rc2 Bc3 Nb3 Bc1 Nc5 Bd7+ Ne6 Re1 Ng8 Kg4 h3 Qd2 Bb1 Qg5 Ba2 Qf6 Bb1 Bge5 Ng5 Qd8 Ba2 Ne6 Bb1 Bb8 Ba2 d6 Bb1 Ra4+ Kd5 Ra5+ Kc4 Nc7 Ba2 Rf1 Ne1 Nd5 Bb1 Kf4 Nf6 Bhf3 Nh5+ Kg4 Ba2 Qg3 h2 Be6 h1B Qh2 Bb1 Nfe3+ Kb3 Be4 Qdb5 Nb4+ Qd5 Bh3 Qdc4 Bd5 Bh4 Rf7 Bf2 Nf5 Bg2 Ba8 Qd3 Beb7 Bd5 Rc7 Be6 Bbg2 Bg8 Baf3 Bc4 Nd5 Nf6+ Kf4 Bb5 Rg7 Ba4 Rb7+ Kc4 Bh1 Bb3 B1g2 Be3+ Kg3 B3a2 Kh4 Bb6 Kg3 Bf2+ Kf4 Nfh7 Kg4 Nf6+
6BN/4BPNq/1NK2Pbb/B3R3/nBq2bk1/1Nq1q3/1RBQ4/r2Rr3 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 d5 exf5 b5 a4 d4 axb5 d3 cxd3 a4 d4 Nc6 d5 Na5 bxa5 Ra6 Bc4 Ra7 Bf1 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 e5+ d6 c6 h4+ Kf4 d4+ Ke4 f4 g5 b6 g4 h6 a3 b7 a2 b8N g3 a6 g2 a7 Ba6 h7 Be2 f6 Kf5 f7 e4 d5 e3 h5 Qg5 h6 Ba6 Bc4 e2 Rh2 e1Q Ba3 Qee7 Qd2 Qe5 Nf3 g1Q+ Nd4+ Kg4 f5 Qge1 Ne6 Q5e2 Bb4 Qh5 Ng7 Qe6 Nd7 Q6e2 Nb6 Rb8 a8B Re8 Bd3 Re3 Bc2 Bd3 Rf2 Re7 d7 Nf6 d8B Nd7+ Kd6 c5 Kc6 Re5 Be7 c4 d6 c3 f6 Nc5 d7 Q2f1 d8B Bg6 Bb7 Rg8 h8N Qc4 h7 Qe3 Rf5 Re4 Re5 Qh4 Ba6 Qh2 Bb5 Qhh3 Bba4 Qh5 Bd3 c2 Bb3 c1B Bbc2 Qhh6 Qf2 Kh3 Nf5 Rh4 Bd1 Qeg5 Na4 Re4 Nd2 Bh5 Nb3 Qg1 Bda5 Bg7 Nb6 Bf4 Ng6 Rh8 Rb1 a1Q B1c2 Qac3 Rb2 Kg4 Qe3 Rd8 h8R Qg3 Qc1 Rd7 Rf8 Re1 Nh8 Qe3 Rd8 Rd5 Be4 Rdd1 Rdd5 Qg6 Rd4 Bgh6 Ng7 Qh7 Rd7 Qg8 Bh7 Bg6 Rd8 Qee2 Qe3 Ra1 Rd1 Qf2 Qd2 Qfe3 Ne6 Qg7 Bg8 Qh7 Ng7 Na4+
rk3qqr/3PQ1PB/1B3K1n/1bn3Q1/n1R2R2/1r3N2/1B1B1NQ1/n1B4B w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 Kd7 Kg3 h5 Kh4 a5 d4 c5 b4 Kc7 d6+ Kb7 b6 a4 d7 e5 f6 a3 b5 e4 d5 e3 f7 c4 f8Q a2 d6 c3 Qg4 e2 Nf3 e1R Bg2 c2 Qe7 Nh6 g8B Re6 g7 Re5 g6 Qe8 d8B+ Bd7 Qgg5 Ra7 Nbd2 Nf7 Ne4 Ka8 Rf1 Kb7 Nf2 Rf5 Bh1 Qf8 Bh7 Ra6 g8Q Ra8 g7 Nh6 Qd5+ Kc8 Qg2 Rf4+ Kg5 Na6 b7+ Kb8 Bb6 h4 Qf5 Qg8 Kf6 Rb4 Qfg5 h3 Bb2 h2 Rac1 Bc6 d7 a1N Bd8 Ka7 b8B+ Kb7 b6 Rb3 Bd6 Nc5 Bf4 Na4 Bd2 Kb8 b7 Bb5 Bb6 Ba6 Rce1 c1N Re4 Nd3 Rc1 Bc4 Rf4 Bb5 Rcc4 Ndc5 Bba5 Ka7 b8B+ Kb7 Bbc7 Ka7 Bcb6+ Kb8 Qg1 Re3 Bdc1 Rb3 Bg2 h1Q Bad2 Qh5 Bh1 Qhe8 Q1g2 Qef8+
1r2R3/2bR1RB1/b1rQ3n/1rN1B3/3BKPn1/1P6/2k1NbBQ/B2r1r1B w - - 0 1 legal: proof: a4 b5 axb5 d5 c4 f5 cxd5 g5 e3 f4 exf4 Bb7 f3 Bc8 fxg5 Bb7 h4 Bh6 g4 Bc8 f4 Kf7 g6+ Kf8 g5 Ke8 h5 Bf8 h6 Qd6 Rh4 Qf6 Rh1 Qg7 hxg7 Kd8 Ne2 Kd7 Ng1 Ke8 Ke2 Kd7 Kf3 Kd6 d4 e5 b3 a5 b6 c5 b7 h5 Bg2 c4 Bb2 a4 Nd2 h4 Ke4 a3 Ne2 Nc6 b8B+ Ke7 d6+ Ke6 d7 a2 d8B c3 Bf6 Nh6 g8R c2 g7 c1R g6 Be7 Re8 h3 Re1 h2 g8B+ Nf7 g7 h1R Ba7 Rb8 d5+ Kd6 Rg1 R8h5 Bad4 Nh6 Bh7 Rg5 g8Q Ba6 Bg7 Bd8 Qh8 Bc7 Rb1 Rf5 Ba1 Rc5 Re1 Rf1 Re7 Rf6 Rf7 Rcb5 Bf5 Re6 Bh1 Rg6 Bh3 Rf6 B3g2 Rg6 Bdc3 Kc5 Bd4+ Kb4 d6 Re6 d7 Rg6 Ke3 e4 d8B Ne5 Be7+ Rd6 Bef6 Rc6 Rc1 Ka3 Rc5 Kb4 Rd5 Ka3 Rdd7 Kb4 Bdb2 Neg4+ Kd4 e3 Ne4 Bb6+ Kd3 Bc7 Bbe5 Ka3 Bad4 a1R Nc5 Rb1 Qd2 Ra1 Ke4 Rd1 Qb4+ Ka2 Ba1 Kb1 Qd4 Kc2 Qd6 Ng8 Qh2 N8h6 Nc3 e2 Bd4 Rd2 Bfe5 Rd3 Rb1 e1B Ne2 Rd1 Rc1+ Kd2 Rc3 Bf2 Rh3 Ng8 Rh8 N8h6 Re8 Kc2
3BRR2/2nnN3/RQ3P1n/1bP1k1B1/r6n/2R1b1Kb/NNb2R2/NB4n1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 dxc5 g4 f4 g3 h4 Ba6 e4 Ra7 e5 Qc8 b6 Rb7 f6 Qc6 f5 Kd8 f7 Qf6 exf6 Rc7 Ra2 Bc8 Ra1 Rc6 Qg4 Rd6 Qd1 Rd4 Ke2 Rg4 Ke1 Rg5 hxg5 Bb7 Bd2 Ba6 Bc1 Bc8 b4 h5 c4 d5 b5 Kd7 g6 e5 g7 h4 b7 d4 c6+ Kd6 b6 g2 Kf2 d3 c5+ Kd5 c7 e4 Nc3+ Kd4 Rh3 a4 Nge2+ Ke5 Bg5 g1N Nc1 d2 Nb3 a3 Bd3 a2 Qb1 Nd7 b8R d1B b7 Bd6 f8R Bc2 f7 Nh6 g8N e3+ Kg2 e2 Ne7 Rg8 f6 Rh8 Re8 e1N+ Kh2 Ng2 f8R Rh7 Rf3 h3 Rf2 Rg7 Kg3 h2 Ra8 h1B b8B Rg6 Ra3 Nh4 Ba7 Bc6 Bb6 Bb5 Bf5 Bb7 c8N Bg2 Bd8 Bh3 Nb6 Rg7 Qb2 Bb8 Rc1 a1N Ra6 Rh7 Nba4 Bd6 Na5 Nb3 Na2+ Nd4 Nb3 Rg7 Qb1 Ne6 Nb2 Bb8 Na1 Nc7 Nc8+ Re7 Bg6 Re6 Ne7 Rd6 Bd3 Rd4 Bh7 Bb3 Rc3 Ra4 Qf1 Bd1 Bb1 Bc2 Qd1 Ba7 Qd2 Bb6 Qd1 Ba5 Qf3 Bb4 Qc6 Ba3 Qb6 Bb4 Ra3 Bd2 Rc3 Be3
2k1BB1B/R1N2N1B/b2QRb2/p4BBq/1nq1r3/1K2P3/nb2RQ1P/2r5 w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 d5 a4 e5 axb5 h5 fxe5 h4 c4 h3 cxd5 Qd6 gxh3 Qc7 h4 Qe7 h5 Qd8 d4 Kd7 Kd2 f5 Kc2 g5 d6 a6 h6 f4 b6 g4 e3 g3 d5 g2 e6+ Ke8 e7 Kd7 h7 f3 b7 f2 c6+ Ke8 d7+ Kf7 e8B+ Ke7 d6+ Ke6 c7 Bg7 Kb3 Bf8 Qf3 Ra7 Bd3 f1Q Na3 Be7 Nb5 Nc6 b8Q Nf6 Ba3 Nd5 Nh3 g1B Qf2 Ndb4 Ra2 Rf8 h8B Rf4 Re2 Bf6 Bh7 Na2 Bb4 Qe7 d8R Re4 d7 Qf7 Bf8 Qh5 Qb6 Bb7 c8B Bb2 Qc7 Ncb4 Ng5+ Kd5 Qcg3 Kc6 Nf7 a5 Nc7 Ba6 Qgf4 Kb6 Qd6+ Nc6 Qf5 Bf2 Rg1 Rb7 Rg6 Bh4 Re6 Bhf6 Qf2 Ra7 Bb7 Qc1 Ra8 Qcc5 Bc8 Qc1 Nb5 Rc7 d8B Qf1 Bcd7 Kb7 Ra7+ Kb8 Bc8 Ncb4 Bcd7 Bg7 Bg5 Bgf6 Qd4 Rc1 Nc7 Qhh3 Qd6 Qh5 Bb5 Kc8 Bd3 Rg4 Bdf5 Re4 Rd2 Qb5 Re2 Qc4+
1q1n4/5r2/Q2PP1k1/N1BRQN1n/Bn4n1/1Qrb1K2/1p1Q4/N1bQQR2 w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 c5 g4 d5 cxd5 h5 gxh5 a4 d4 a3 dxc5 Qd7 bxa3 Rh6 a4 Rh8 a5 Qd8 Kf2 g5 a4 f5 e4 Kf7 h4 b5 h6 f4 h5 f3 a6 g4 c6 b4 a5 b3 c7 b2 d6 Qd7 a7 Qb5 a6 Qb3 e6+ Kf6 e5+ Kf5 e7 Qa2 e8Q Qf7 h7 Qf6 h6 Bg7 Be3 Nc6 Nd2 Qf8 Ne2 Nd4 Nb3 Bd7 c8Q Nc2 Qc3 Bc6 Ned4+ Ke4 Ra5 Nb4 Nf5 Nf6 Bc5 Bb5 Qcd2 Nh5 Na1 Rc8 a8N Bd3 a7 Rc6 Qe7 Qb8 Nb6 Rf8 h8Q Rf7 h7 Bh6 a8Q Bf4 Qa6 g3+ Kg1 g2 Kf2 g1N Qg8 Bg5 h8Q Ne2 Nc4 Nd4 Rb5 Rc8 Na5 Ndc6 Bg2 Nd8 Rf1 Rc6 Qe6 Rcc7 Qeb3 Bh6 e6 Rc6 Qg3 Bg5 Bb6 Rc3 Rd5 Bh6 Bc5 Bf4 Bh1 Bg5 Q2c2 Bc1 Qg1 Kf4 Bg2 Kg5 Qcd2+ Kg6 Qe5 Ng3 Ke3 f2 Kf3 Nh5 Qee1 Ra7 Qh2 Rh7 Qhe5 Rf7 Rg1 f1N Rh1 Ne3 Bf1 Bb1 Bb5 Bc2 Rf1 Bd3 Ba4 Ng4
3QBB2/B2K1n2/1q5n/P4Brk/r2B1Pp1/R1q1qNB1/2Q1N3/Rb3N1n w - - 0 1 legal: proof: c4 c5 e4 d5 cxd5 h5 g4 a5 gxh5 f5 exf5 a4 d4 a3 bxa3 e6 a4 c4 a5 Bc5 dxc5 Rh7 Bg5 Rh6 Bc1 Rh8 Kd2 Kf7 Kc3 g5 Kb4 b5 a4 g4 f4 c3 h4 c2 c6 e5 Kc5 e4 a6 e3 f6 b4 c7 e2 a5 e1Q h6 Kg6 h7 b3 h5+ Kh6 d6 b2 a7 Bb7 c8B Qf2+ Be3 c1N d7 Nc6 Kd6 Ba6 f7 Qe8 d8B Bb7 Bf5 Qh4 Ne2 Nb8 Nd2 b1Q Qc2 Qa2 Rh3 Qf2 Bh4 Nc6 Bg3 Rb8 a8Q Qb2 Ba7 Qee3 Kd7 Nd8 Bg2 Nd3 Bc6 Qeb6 Nf1 Qfe3 f8B+ Qg7+ Kd6 Nf7+ Kd7 Re8 Qd8 Nf2 Bb5 Be4 Ba4 Ne7 Bb5 Rg8 h8N Bd3 Ng6 Nh1 Ne5 Be4 Nf3 Bd3 Qdc7 Rc8 Qd8 Rc4 Be6 Bg6 Bf5 Ra4 Bc6 Kh7 h6 Qgc3 Bb5 Rg7 Bc6 Ng8 Bb5 Kh8 h7 Ngh6 Bc6 Rg8 Bd6 Kg7 h8B+ Kh7 Bd4 Rg7 Be6 Be4 Bf8 Rg5 Bb5 Kg6 Bc6 Rh5 Bb5 Rh4 Bf5+ Kh5 Qd1 Bb1 Qc2 Ng8 Bc6 Ngh6 Be1 Qed3 Nfg1 Qcb3 Kc8 Qe4 Rc3 Qe3 Be8 Q3b4 Rca3 Qbc3+ Kd7 Rh3 Qd2 Rh4 Bg3 Rh2 Be6 Kg6 Nf3 Rh5 Qa2 Rg5 Bf5+ Kh5 Qb3 Qc4 Qc2 Qcc3
Rb3Q1B/2RRq3/r1N1PK2/4nnQ1/5BBR/1R6/pR2r1Pn/3qNqk1 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b6 a5 b3 g5 hxg5 a4 Rh5 a3 Rh2 Bd7 Rh1 Ba4 bxa4 Qd6 Qb3 Qe7 Qd1 Qd8 Kf2 Ke7 Ke3 h5 Kd4 f5 e4 h4 d6+ Ke6 a5 c6 a6 h3 d7 h2 a7 a2 g6 f4 g7 f3 b7 f2 Na3 Ne7 g8R Qc8 d8R Qc7 Ne2 Nd7 b8R Qa5 Nc2 Rh3 Rb2 Ng6 Rab1 Nh4 Rg7 Rf3 Ne1 Nb6 Rc7 Rg3 Rdd7 Re8 a8R Qa3 d3 Rg5 Bf4 Nc4 Qc1 Qe7 Rb3 Rg6 R1b2 Qd8 Qe3 Bd6 Qg3 Qe7 Qg5 Kf7 e6+ Kg7 e5 c5+ Kd5 Nf5 d4 Kh7 Rca7 Bb8 Rac7 Rh6 Ke4 Rg6 d5 Kg7 Rg1 h1Q d6 Qh5 Nd4 Qd1 Bd3 f1N Be2 Nh2 Nc6 Kh7 Rh1 Rh6 Qg3 Rf6 Bg4 Kg6 Bh3+ Kh5 Qg7 Kh4 Bg4 Qf7 e7 Rh6 Be3 Kg3 Qg5 Rf6 Bd2+ Kf2 e6 Ne5 Kf4 c4 Ke4 Rd8 e8Q c3 Qf8 c2 Bc1 Qe7 Bf4 Nhf3 Rh4 Kg1 Rcb7 c1Q Rdc7 Qdd2 d7 Nh2 Rba7 Rc8 d8B Qdd1 Rd7 Qa1 Ba5 Rc7 Bc3 Rb7 Rc7 Rb6 Rd7 Ra6 Rac7 Nd3 Kd5 Rf7 Bh8 Ne5+ Nd3 Qf1 Ne1 Qd1+ Ke4 Nd4 Be3+ Rf2 Bf4 Nc2 Kf5 Re2 Qgf6 Ne3+ Kg5 Qed6 Q6d8 Qc5 Kf6 Nf5 Qde7 Qcd6 Qeg7 Qb4 Qg5 Qe7+
3krBB1/1bNP2Kr/3NQ3/N1q1nB2/p1qR1P1N/BB1q3R/4r2b/R7 w - - 0 1 legal: proof: a4 b5 axb5 d5 c4 f5 cxd5 g5 e3 f4 exf4 g4 f3 Bd7 Ke2 Be6 Ke1 Bc8 fxg4 Kd7 h4 Ke8 h5 Nf6 h6 Nh5 g3 Ng7 hxg7 Bd7 g5 Bc8 g6 Nd7 g4 Nf6 g5 Ng8 Ke2 e5 Ke3 c5 Ke4 h5 d4 a5 b4 a4 b6 h4 b7 c4 b8N h3 d6 h2 d7+ Ke7 Kf5 e4 d5 e3 b5 c3 b6 e2 b7 e1Q Bd3 c2 Qe2+ Kd6 Qe6+ Kc7 d6+ Kb6 Ba3 c1Q Nc3 Qf2 Nf3 Qa2 Na6 Qac2 b8N Q2b2 Nc6 Kb7 Nh4 Rh6 Nc7 Ra5+ N3b5 Nf6 g8B Qe7 d8B Nd7 g7 Ra8 g6 Qe2 Na5+ Kb8 Rd1 Ne5 d7 h1R Nd6 Rh7 Bf7 Re1 g8B Qc3 g7 Qc4 Bc2 Qf1 Rd4 Re2 Bg6 Bb7 Bb3 Qe8 Be7 Qc8 Kf6 Qf3 Nf7 Qfd3 Bf5 Qc5 Bd6 Qcc4 Bdb4 Bc5 Nd6 Ba7 Ndb5 Bb6 Bf8 Ba7 Nd6 Bc5 Rd5 Bg1 Rd4 Bh2 Bf7 Qf3 g8R Qfd3 Rg3 Qc5 Rh3 Qcc4 Nce8 Q8c7 Bg8 Q7c5 Ng7 Kc7 Nge8+ Kd8 Nc7 Re7 Ndb5 Re8 Kg7 Ra6 Qf7 Rf6 Qe6 Rh6 Nd6 Rh7+
Nn1NBr2/2r2r2/8/PBB3B1/R1r3Pb/3p1K2/q1Q1BQ2/n2RBRrk w - - 0 1 illegal: No possible last move
1k1b1B2/1BR3nN/RbBQ1N1q/2n1n3/Rr3P2/P2b2B1/K1p1B2N/1N1b4 w - - 0 1 legal: proof: b4 a5 bxa5 d5 c4 f5 cxd5 g5 f3 g4 e3 f4 exf4 Qd7 Qb3 Qd6 Qd1 Qd8 fxg4 b5 h4 Qd6 h5 Qh6 g5 Qb6 g4 Qa7 g6 Qc5 g5 Ra6 g7 Rg6 hxg6 Qd6 Kf2 Qd7 Ke1 Qd8 d4 Kd7 Kd2 e5 Kc2 h5 Kb2 c5 a6 Kc7 a7 e4 a8B b4 Be2 e3 Bb7 b3 Nf3 c4 Nh2 Nd7 d6+ Kb8 d5 Nh6 g8B h4 g7 h3 g6 Ne5 d7 Qb6 d8R Qe6 d6 Be7 Rd7 Bd8 Rc7 Nf5 d7 c3+ Ka3 b2 Qd6 Qf6 Bgd5 c2 g8N Ng7 Bbc6 Ba6 Kb3 Qf8 Nf6 Bd3 Nh7 Qf6 Rg1 Qg5 Bd2 Qh6 Be1 Rf8 Bg3 Re8 Nd2 b1N Rc1 Nc3 Nb1 Na4 Re1 Bh4 d8B Nc5+ Ka3 Bf6 Be7 Rh8 Bf8 Bd8 Bb7 Rg8 Bdc6 Rh8 Nf3 h2 Kb2 h1B Nh2 Bf3 Rc1 Nf5 g7 Bh5 g8N Ng7 Ngf6 Bf3 Bf1 e2 Rd1 e1B Be2 Ba5 Rd2 Ba6 Rd4 Bb6 Ra4 Bg4 a3 Bd3 Ka2 Qh4 Nc3 Rg8 Rb1 Qh6 Rb5 Bf3 Rba5 Bg4 Ra6 Rh8 Bf1 Bd1 Be2 Rg8 Be7 Rf8 Nb1 Rf7 Bf8 Rd7 Qe6 Rd4 Qd6 Rb4
2N1br1r/R2RQp2/1RP3R1/B1nR1q1R/b1NK4/3Qq1q1/k6P/3B1q1Q w - - 0 1 legal: proof: g4 c5 f4 d5 a4 b5 axb5 h5 gxh5 e5 e3 c4 Nf3 e4 Ng1 d4 d3 Nc6 dxc4 d3 c5 Nd4 exd4 Be7 Ra3 Bd6 Ra1 Be5 fxe5 Ke7 Ra3 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 Ke6 c4 a5 b4 g5 c6 a4 d5+ Kf5 c5 d2 b6 a3 d6 Ke6 d7 Kd5 c7 a2 b5 g4 c6 g3 h6 g2 h7 Qh4 d8R+ Kc5 b7 Kb4 b8Q Bb7 c8R Qh6+ Kd4 e3 e6 e2 e7 e1Q e8Q Qe2 b6 Qf3 Qg3 Qhh5 Nh3 g1Q+ Nf2 Ra4 Na3 Ra8 Rd7 Ra7 Qe7+ Ka5 Rcd8 Qgg2 Ne4 Qb3 Qd3 Ka4 Rg1 Qf5 Nc4 Nf6 Ned6 Bc8 b7 Qg3 b8R Ne4 Rb6 Ra8 Be2 Nc5 Rg2 Rb8 Qh1 d1B Bd2 Rf8 h8R Qa3 Rc7 Bd7 Ba5 Be8 Rcd7 Qc1 Rh5 Qce3+ Kc3 Rh8 Nc8 Bc2 Bd1 Ra8 Nb2+ Ka3 Rd5 Ba4 R8d7 Qc7 Rg6 Qcg3 Rb1 a1Q Rc1 Qe2 Kd4+ Ka2 Ra7 Qb1 Nc4 Qb3 Rb1 Qef1 Rbb7 Qa3 Rbd7 Qc1 Rbb7 Qce3+ Kc3 Qfg2 Rb6 Qgf1 N8d6 Rd8 Rdc7 Bd7 Nc8 Rdg8 Rcb7 Be8 Rbd7 Qh6 Kd4 Rf8 Rac7 Qc1 Ra7 Qce3+
1qq2RN1/QrNPB2K/B3N3/3RnPRR/k1p5/r4rBr/4R1b1/4B1n1 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 Kd7 Kf3 a5 Kg4 c5 Kh5 a4 d4 e5 b4 e4 d6 a3 b6 Kc6 d7 e3 d5+ Kb7 b5 h6 d6 a2 Nh3 e2 Nf4 e1R Na3 Re7 Qd4 Ra7 Bd2 Qc7 d8B Rd7 Be7 Ra8 Re1 a1R Ne6 Ra6 Re2 Nc6 Be1 Qb8 Rhh2 Rc7 d7 Ne5 Qa4 Nf3 Qd4 Ka8 b7+ Ka7 Rh3 Ra4 b6+ Ka6 Nb5 Ng1 Rd3 R1a2 Qe3 R2a3 Rd5 Rf4 Qf2 Qa8 b8R Bb7 Rf8 Qb8 Qd4 Bc6 b7 Rff3 Qe3 Qc8 b8B Rb7 Bbg3 Kb6 Nbc7 Nf6+ Kh4 h5 g8R Rh7 g7 Ng4 g6 Ne5 Kg5 h4 Rh8 h3 g8N h2 g7 Rh3 Rh5 h1Q Kh6 Qg2 Kh7 Qh2 Ra2 Qb2 Ba6 Qb5 Rad2 Ka5 Re2+ Ka4 Qf2 c4 Qa7 Rf4 Nh6 Qb2 g8R Rff3 Rgg5 Qb4 Ng8 Qd6 Na8 Qdb8 Nac7 Rfd3 Rb5 Bg2 Rd5 Rf3
1k2r1QB/3B1Pb1/1N1r2R1/3Nnb1r/1bN5/p1bQ3N/N1n1PRK1/NQ6 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 gxh5 f5 c4 d5 cxd5 Nd7 a4 Qg5 axb5 Qf6 exf6 Nb8 Kf2 Kd8 h4 a5 d4 c5 b4 Kc7 b6+ Kb7 d6 g5 b5 a4 f7 c4 d5 c3 d7 f4 d8Q a3 d6 g4 d7 c2 h6 f3 h5 Rh7 Nh3 Ra5 Rh2 Rg7 h7 Ra8 h8N Bb4 h6 Ba5 h7 Nf6 Qd3 Na6 Nc3 Kb8 b7 Nh5 Qg8 Bb4 d8N Nf6 Na2 Rg5 Ne6 Rc5 Bb2 c1B Nd4 Rc2 Ng6 Rd2 h8N Ba5 Nc2 Ne8 Ne5 Bf5 Nhg6 Bc3 Nc4 Nb4 Ne7 g3+ Kg1 f2+ Kg2 Rd1 Nd5 Bh6 Rc1 Bf8 Na1 Nc2 Rb1 Bcb4 Bh8 Nf6 Rc1 Nd7 Rb1 Ka7 b8N Ne5 Nd7 Bg7 b6+ Kb7 Rb2 Re8 Rb3 Ka8 b7+ Ka7 N7b6 Kb8 Qe4 Rd4 Qd3 Bc3 Rb5 Rh4 Rc5 Rh5 Rc6 Bb4 Rg6 Bc3 Kh1 Bb4 Bg2 Bc3 Bf3 f1R+ Kg2 Rd1 Bg4 Rd2 Kh1 Bb4 Rf2 g2+ Kh2 g1B+ Kg2 Bc8 Bd7 Rd1 Rf4 Bd4 Rf2 Bdc3 Ba4 Bf5 Bd7 Ka7 b8Q+ Ka6 Qd8 Ka7 Qg5 Kb7 Qc1 Kb8 Qb1 Rh6 Rg5 Rd6 Rg6 Rh1 Ng1 Rh6 Nh3 Rh5
1K2RQ2/NbqN4/4n3/1PR1qN1n/q1B1B2N/P4nB1/q2p1R1r/B2Bk3 w - - 0 1 illegal: No possible last move
1b4r1/N1rR1pNK/3qB1q1/qq3Q2/QN4PN/nP1R1Nk1/2N2r2/1QB5 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 fxe5 d5 axb5 h4 c4 Na6 cxd5 Nb8 h3 g5 Ra5 Nd7 Ra3 Ndf6 Ra1 Nh5 gxh5 g4 Qb3 g3 Qd1 Bg4 hxg4 Qb8 Qb3 Qc8 Qd1 Qd8 Ra3 Kd7 Qc2 c5 d4 a5 Kd2 c4 Ke3 h3 Kf4 a4 e4 g2 d6 Ke6 b6 h2 d5+ Kd7 e6+ Ke8 d7+ Ke7 Kg5 Kd6+ e7 Ke5 b7 c3 b8Q+ Qc7 d8N Nf6 e8Q+ Be7 d6 Ra5 h6 Qc4 h7 Nd7+ Kh6 Qa2 Be3 Qb3 Nc6+ Kf6 e5+ Ke6 Bc4+ Rd5 Na7 Nb6 d7 Rg8 h8N Qb4 Nf3 g1Q Kh7 Qd1 Bb3 Nc4 Ng6 Rd2 d8N+ Kd5 e6 Bd6 Rf1 h1Q+ Ngh4 Rf2 e7 Bf4 Qc8 Bb8 Ndc6 Qg1 Qc1 Ke4 Ba2 Qc2 Rd1 Qh2 Rd5 Qb7 Nb4 Qe5 Rb3 a3 Qec6 Qd3 e8N c2 Ng7 Qb6 Qf1 c1R Q6d7 Qdd4 Rd3 Qef6 Bb3 a2 Na3 a1Q Qg1 Rc3 Nac2 Qaa5 Qa4 Na3 Qb1 Qbb5 Bc1 Rc7 Qe6+ Qde5 Rd7 Qg5 Qf6 Qd6 Be6 Qh5+ Qh6 Qhg5 b3 Qf6 Qg6+ Qff5 Rd2 Kf4 Rd1+ Kg3 Rd3 Qf6 Qf5 Qg6+
1NB2Q1b/1N1R3b/rN1N2pP/B2NBK1R/1r3n1b/R1P1rr2/2r5/3Bk3 w - - 0 1 illegal: No possible last move
3r3R/rr2r3/2k2p2/2n1n2Q/3B2Q1/1n1N1PBP/n1nRBBBN/Q2BK3 w - - 0 1 legal: proof: e4 c5 h4 b5 a4 d5 axb5 Bf5 d4 Bc8 dxc5 d4 Bd3 Qd7 Bf1 Qd5 exd5 Bf5 Nd2 Bd7 Nb1 Bc8 Be3 h5 Ra6 g5 Bd3 g4 Rd6 g3 Bf1 Bh3 Bc1 Bh6 Ra6 Bg5 hxg5 h4 Ra2 Bd7 Ra3 h3 Ra6 h2 Ra1 Bh3 gxh3 Rh4 Kd2 Rh7 Ke1 Rh8 c4 Kd7 b4 e5 f3 a5 c6+ Kd6 c7 f6 c8Q d3 c5+ Ke7 d6+ Kf7 c6 e4 g6+ Kg7 d7 e3 d8B Kf8 c7 Ke8 b6 a4 b7 g2 b5 e2 b6 a3 g7 a2 Bb2 Rh6 Nd2 Rh7 Bd4 Ra7 Qg4 Rh4 c8B Ne7 g8B Ra3 Bb3 Na6 b8B Rh8 b7 Ng6 Bg3 Nc5 b8Q Ne5 Bb6 Ra7 Ba6+ Ke7 Rc1 a1N Qe8+ Kd6 Qeh5 Kc6 Rc4 Rf8 Qb1 Rh8 Bd1 Nb3 Qa1 Re8 Ra4 Ree7 Bc4 Rab7 Ra8 Ra7 Rh8 Reb7 Kf2 e1N Ne2 g1N Nf4 Ne2 Bg2 Nc3 Nf1 d2 Bce2 Na2 Nd3 Nc2 Rg1 h1R Nh2 Na3 Bc2 d1R Re1 Rb1 Rd1 Re1 Rd2 Rb8 Bcd1 Nc2 Bef1 Re4 Bfe2 Rd8 Kf1 Re7 Bdf2 Ra4 Bd4 Nbc1 Ba7 Rbb7 Bb6 Raa7 Kf2 Ncb4 Ke1 N1b3 Bdf2 Nca6 Bbe3 Nac5 Bd4 Nc2+
3Nr2B/BRKR3P/2R1QbqN/1p4p1/bkB2BQ1/1r2Bbn1/B6P/5n2 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 c4 e4 cxd5 e3 a6 Qd6 a5 Qb6 axb6 Bf5 fxe3 Be6 e4 Bd7 e5 Bc8 Kf2 Ke7 Kf3 f5 Kf4 c5 d4 g6 e4 c4 h6 c3 e6 Kd6 b7 c2 e7 Rh7 e8Q Rc7 h7 Nd7 b8B Ne5 a7 Nh6 Ne2 Nd7 Na3 Nf7 Be3 c1Q Nc2 Qd2 Nb4 Nde5 Rc1 Qb2 Nc6 Qa2 Ng3 Ng4 Bc4 Bb7 Nd8 Nge5 Qg4 Qc2 Rhd1 Ba6 Qc6+ Ke7 d6+ Kf6 d5 Qb1 d7+ Ke7 d6+ Kf6 Ba2 Be7 Rc5 Nc4 e5+ Kg7 e6 Kf6 Qb6 Ng5 Rc6 Ne4 Rd5 Rc8 Bc7 Rab8 a8R Ncd2 Ra7 Nf1 Rb7 Ra8 Bb8 Rc7 Ba7 g5+ Kf3 f4 Nf5 Rac8 Nh6 Neg3 Rd1 Ke5 Bc4 Bf8 e7 Bg7 e8B Qg6 Bef7 Bf6 Ba2 Ra8 Bfc4 Rb8 Ne6 Re8 d8B Rd7 Bc7 Rf7 Nd8 Rfe7 Rb8 Bb7 Qa6 Ba8 Rb7 Re6 d7+ Rd6 Ba5 Rd3 Bd2 Rb3 Ne6 Bh8 d8B Bf6 Bdb6 Qf5 Nd8 Qg6 Bd3 Kd5 Bbd4 Be7 Bh8 Bf6 Kg2 f3+ Kh3 f2 Bc4+ Ke5 Bc1 Ne4 Rdd7 Neg3 Bf4+ Ke4 Bd5+ Kd3 Bc4+ Kc3 Bce3 Kb4 Kg2 Nh1 Kf3 Nhg3 Qe6 Nf5 Ke4 N5g3+ Kd5 Ne4 Rbc7 Neg3 Qc8 Bb7 Kd6 Ba8 Rc5 Bf3 R5c6 Qf7 Qg4 Qg6 Re7 Rb2 Rg7 Bd1 Rgf7 Ba4 Rb7 Rb3 Rg7 Nd2 Rgf7 f1B Qce6 Bg2 Kc7 Bf3 Rd7 Ndf1
r3Rn2/2Rn2B1/Bk3pNb/q4Q2/1Nq3K1/1p1B1B2/BrQ1P2P/Nq3B2 w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 e5 f4 d5 fxe5 c5 b4 Bd7 bxa5 Bb5 cxd5 c4 d3 c3 Kf2 Bc5+ Ke1 Bc4 dxc4 Bf8 Kf2 Kd7 Kg3 Kc7 a4 g5 h6 b5 a6 g4 a7 c2 e6 b4 c5 f6 h7 Ne7 a5 Nd7 a6 Ng6 e7 Qe8 c6 Rd8 a8B Nge5 a7 Qf7 e8B Bc5 d6+ Kb6 c7 Nf3 c8B Nfe5 Nd2 Qg6 Bf7 Qh6 Bf3 Qh5 a8B Qh6 Ba6 Be3 Nb3 Qh5 Bae4 Nd3 Nh3 Bd4 Nf4 Rdf8 Nd5+ Kc6 Bh6 c1Q Bg7 Be3 Qc2+ N3c5 Bed3 Rhg8 h8N Bh6 Ng6 Ra8 Be6 Nf8 d7 Qf5 d8Q Qb1 Kh4 g3 Qa5 g2 Ra3 g1Q Na1 Qe3 Bf7 Qfe5 Kg4 Qec1 Rg1 Rb8 Rc3 Ra8 Rc4 Qc3 Re4 Ncd7 Re8 Qa3 Nb6+ Kc7 Qf5 Qa5 Ba2 b3 Nd5+ Kc6 Kh5 Qc4 Nb4+ Kb6 Rg4 Rc8 Rf4 Rc6 Kg4 Rd6 Bde4 Rd2 Bd3 Nh7 Rfe4 Rf8 Re7 Ra8 Re8 Nhf8 Rd4 Qcb5 Rc4 Qba4 Rc7 Q4b5 Qc1 Rb2 Qc2 Qc4+
1r3r2/2NN3N/p3N1q1/2RPQ1qB/Q3p2B/2P1R1NQ/K2nb2q/2N2nk1 w - - 0 1 legal: proof: e4 b5 g4 f5 exf5 d5 a4 c5 axb5 h5 gxh5 e6 Nh3 d4 Ng1 c4 c3 Bb4 cxd4 c3 d5 c2 Be2 Na6 Bf1 Bc3 bxc3 Nb8 d4 Kd7 Kd2 Kd6 f4 g5 h4 e5 h6 g4 h7 e4 f6 g3 h5 a6 f5 g2 h6 Qb6 f7 Qc6 f8N Qb6 f6 Nc6 f7 Nce7 Ra5 Qc7 b6 Bf5 b7 Bh3 b8N Qc6 Be2 Be6 Bh5 Ra7 Rc5 Qb7 Rh3 Nc6 Re3 Nce7 Nbd7 Nc8 Ne2 g1Q Ng3 Bf5 Ne6 Qb8 f8N Bg4 Nc7 Nf6 Ba3 Ne8 Kc1 Nf6 Nd2 Nb6 Kb2 c1Q+ Ka2 Rb7 Qa4 Nc4 Nb3 Be2 Bb4 Rg8 h8Q Ng4 h7 Nh2 Qg7 Qg2 h8Q Nf1 Nh7 Ncd2 Qg4 Qe8 Qh3 Rb8 Qg7 Qh2 Ba3 Qd1 Nc1 Rf8 Qg5 Qg6 Qf4+ Ke7 Qe5+ Kf7 d6 Qe1 Nf5 Qh4 d5 Qf6 Ng3 Qg5 Ndf6 Kg7 d7 Kh6 d8N Qf4 Nd7 Qff5 Nhf6 Kg5 Qg2 Kh4 Nde6 Qgg5 Nh7 Qfg6 Qf3 Kh3 Qff5+ Kg2 Qh3+ Kf2 Ra5 Q5f6 Be7 Qf4 Bh4 Qfg5 Rc5 Kg1
5B2/B3NR1P/Bp1kB1q1/5RR1/q2rR1n1/1KnRN1bP/p1Q1bn2/5N2 w - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b4 c5 bxc5 b6 a4 Na6 a5 Rb8 Qg4 Rb7 Qd1 Nb8 a6 Qd6 axb7 a5 Ra3 Qd7 Ra1 Qd8 f4 Kd7 d4 g5 Kd2 e5 Kc3 a4 f6 e4 d6 g4 c6+ Ke6 h6 g3 d7 e3 c7 a3 d5+ Kd6 f5 a2 h7 e2 f7 e1Q+ Nd2 g2 f6 Bg7 f8R Na6 b8B Qf2 h3 Ne7 Ba3+ Ke5 f7 Nf5 d6 Ne7 Qc2 Bh6 Kb3 Be3 Nc4+ Ke6 Re1 Kd5 Ba7 Qg3 Nf3 g1N Nfd2 Nf3 Rg1 Qe8 d8R Bf5 c8B Ne5 d7 Qg6 Rg5 Bf2 Re4 Nb4 Ne3+ Kd6 Bfa6 Ng4 Ndf1 Rg8 Bcb7 Bg3 Bd5 Rg7 Be6 Nd5 Rg8 Bh2 f8R Nc3 Rf7 Bg3 Rgf8 Rg8 Rb8 Rh8 d8N Qb5 Nc6 Qa4+ Kc4 Rg8 Ne7 Rh8 Rbc8 Rg8 Rc5 Nd3+ Bb4 Ndf2 Rd8+ Qd7 Kb3 Rh8 Rec4 Bd3 Re4 Be2 Rcf5+ Kc7 Kb2 Qa4 Rd3 Rd8 Bc5 Rd4 Ba3 Qe8 Kb3 Qd7 Nc8 Kc6 Bf8 Qe8 Ne7+ Kd6 Bec8 Qc6 Be6 Qa4+
q1N1n3/1B3P1R/N6p/rn1K2qN/2P1NN2/4Q2n/N1kp2R1/1bB1Qq1Q w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 gxf5 g4 f4 Bb7 h4 Be4 f6 Bg7 f5 Bb7 e4 Bh6 e5 Bg5 hxg5 Ra6 Ke2 Bc8 Kd2 Qc7 Ke1 Kd8 f7 Rf6 exf6 Qb6 Bc4 Kc7 Bd3 Kb7 Be2 Qd8 Bf1 Kc7 Ke2 e5 Kd3 d5 f8Q d4 Kc4 a4 b4 g3 b6+ Kc6 g6 e4 b5+ Kb7 c6+ Ka8 g7 e3 f7 d3 f6 a3 c7 Kb7 Nh3 e2 Bg2+ Nc6 Ng5 e1N Qb4 a2 f8N Nh6 g8N Nf3 f7 Qe8 Ng6 Ncd4 Nf4 Bf5 c8N Ng4 Nc3 Nf6 Nge4 Ng5 Rh3 Qe5 Qh1 Ne8 Ngf6 d2 N6h5 Qb8 Qa3 Qa8 Kd5 Rf8 Rb1 a1Q Na2 Rg8 Rh4 Nh3 c4 Rg5 Bf3 g2 Qe3 g1Q Rb3 Kb8+ b7 Kc7 b6+ Kd7 Rg4 Nb5 Rg2 Qf1 Ra3 Qa5 b8Q h6 b7 Qa8 Ra7 Qf6 Qe5 Bh7 Ra4 Rf5 Ra6 Qg5 Rd6+ Kc7 Rg6+ Kd7 Rg7 Bg6 Ncd6 Kc7 Qe1 Kb6 Nc8+ Ka5 Rh7 Ka4 Qe3 Nd4 Qe1 Kb3 Qe3+ Kc2 Qe1 Qa7 b8N Nb5 Na6 Qa8+ Ke6 Nc3 Qd4 Ra5 Qc5 Nb5 Qce3 Bf5+ Ke5 Qb8+ Kd5 Qa8+ Kc5 Qf6 Ned6 Qg5 Bb7 Kb1 Kd5 Kc2 Qe5 Kb3 Q5e2 Bb1+ Qe5 Qe7 Q5e3+ Kc2 Ne4 Qg5+
k7/2rqQ3/B1rRp3/2np1RQ1/1RRNP1QK/R1N1q3/P1n5/B1nq3R w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 b5 dxc5 g5 f4 Bh6 fxg5 Bg7 g4 Bh6 g6 Bf4 h3 Bc7 g5 Bb6 axb6 Bb7 Qd6 Bf3 Qd1 Bg4 hxg4 Ra7 Qd3 Ra6 Qd1 Ra8 Kf2 d5 Kg3 Kd7 e4 Kc6 c4 Kb7 g7 h5 g6 f5 g5 f4+ Kh4 b4 c6+ Ka6 c7 Kb7 c8R e6 c5 f3 Bb2 b3 Nc3 f2 Nf3 Ra5 c6+ Ka8 c7 Ra3 Nd4 Nh6 g8R Qd7 g7 Ra7 g6 Ng4 Rcd8 Ne5 c8R Rc7 Ba6 f1Q Qg4 Qe2 Raf1 Qe3 Ba1 b2 Rf5 b1N Qg5 Na3 Qe7 Nd3 b7+ Ka7 Rge8 Nc2 g8Q Nc1 g7 Rc6 Ref8 Rh7 R8f6 Qe8 Rd6 Nd7 Rg6 Nc5 Rg3 Qd8 b8R+ Qd7 Kh3 h4 Rb4 Qe2 Qgd8 Qe3 g8Q Rf7 Kg4 h3 Kh4 h2 Qg4 Rg7 Qeg5 Rf7 Qde7 Rg7 Rc7+ Ka8 Rc4 Rf7 Rb7 Rg7 Rbb4 Rf7 Rd1 h1Q+ Rh3 Qhf3 Rdh1 Qd1 Ncb5 Qf4 Ra3 Qe3 Nc3 Qa7 Qef6 Rfc7 Qe7 Qb7 Qf8+ Qc8 Qfe7 Qd7
4RnBN/1KRN2rb/B1nN4/3p1Bb1/Q2N1P1p/p2Pq1n1/k5NB/1R6 w - - 0 1 legal: proof: a4 c5 b4 b5 axb5 g5 bxc5 f5 f3 g4 fxg4 f4 e3 Bh6 exf4 Bf8 h4 a5 g5 Qc7 g4 Kf7 h5 Ke8 h6 Qd8 g6 Ra6 g5 Rf6 Ra4 Rf7 Ra1 Rg7 hxg7 Bb7 Be2 Ba6 Bf1 Bc8 Ke2 d5 Kd3 Kd7 Kd4 Ke6 c4 h5 b6 a4 b7 a3 c6 h4 Kc5 Nf6 g8R Qc7 g7 Rh7 g6 Qd7 Kb6 Ne4 c7 Nc5 Qa4 Nb3 c5 Rh6 c6 Nc5 Nf3 Nca6 Nd4+ Kd6 Nc3 e5 Rb1 e4 Nd1 Rh7 Ne3 Qf7 Ng2 Nc5 Ba6 e3 d3 e2 Be3 e1N Bg1 Ne6 Bh2 Nf3 Rhc1 Be7 Re8 Ng1 g8B Bf6 g7 Qe7 Rc2 Bd7 c8B Bg5 c7 Nc6 b8N Ne2 Kb7 Nf8 Rc3 Bg4 Bf5 Ng3 Nd7 Qe3 Ne5 Nb8 Ng6 Nc6 Nh8 Bf3 Bc4 Kc5 c8N Be4 Nd6 Bd8 Bge6 Be7 g8N Bg5+ Bf7 Rg7 Nf6 Ne7 Bg8 Nc6+ Re7 Bf3 Rc7 Bh5 Rcc1 Bg6 Re1 Bh7 Ba6 Qc1 Ra1 Qd2 Re8 Qe3 Qd1 Kb4 Nd7 Kc3 Qa4 Kb2 Rb1+ Ka2
k2nBrK1/NRR1p3/1P3q2/1p1Rn3/2BP1B2/2p1Q2N/3Br3/NBb2r1N w - - 0 1 legal: proof: e4 g5 b4 d5 exd5 f5 c4 b5 h3 a5 bxa5 f4 c5 f3 gxf3 Bg4 f4 Ra6 f5 Rb6 cxb6 Bh5 Qf3 g4 Qe2 g3 Qd1 Bg4 hxg4 Qd7 Rh6 Qd6 Rh1 Qd8 Ke2 Kd7 Kf3 Kc8 Kf4 Kb7 Ke5 h5 Ke6 c5 Kf7 c4 a4 g2 f4 h4 d4 h3 g5 c3 d6 h2 f6 Bg7 a6+ Ka8 d7 Rh5 f5 Rh3 a7 Rg3 a5 Re3 g6 Rd3 Qf3+ Nc6 Nd2 Qc8 d8N Bh6 g7 Bf4 Nb3 Rd1 Bc4 Bd6 Bd2 Qa6 Qe3 Nb4 Nc6 Kb7 a8B+ Kc8 Ra3 Qa7 a6 Qd7 a7 Nc2 Na1 Ne1 Ne2 g1R Ng3 Rf1 Kf8 Ng2 f7 Bb4 f6 Nh6 g8B Ne1 Bh7 Qe6 Bb1 Nf5 Kg8 Qd7 f8N Qe8 f7 Qd7 Ng6 Nd6 f8B Rf7 Nf4 Qf5 Bh6 Nd3 Rg1 h1R Nh3 Nb7 Bf4 Rh2 Nh1 Qe5 Rg5 Qf6 Rd5 Nd8 Ra6 Bd6 Ra3 Re2 Bb7+ Kd7 a8R Rf1 R8a7 Ne5 Ba8+ Kc8 Rd7 Ree1 Raa7 Ba3 Na5 Kb8 Rdc7 Qd6 Bc6 Re2 Rab7+ Ka8 Be8 Bc1 Nc6 Qf6 Na7 Rf8+
N1bBn3/1RPQ2K1/4qB1B/p2nr1Np/4B2Q/kr1B4/Pqp2R1B/5N2 w - - 0 1 legal: proof: c4 b5 cxb5 g5 h4 f5 hxg5 c5 d4 e5 dxe5 f4 b4 f3 exf3 c4 f4 Kf7 f5 Bc5 bxc5 Ke8 Kd2 Ke7 Ke3 a5 Kd4 h5 g4 d5 f4 c3 e6 c2 Ke5 d4 c6 d3 f6+ Kf8 f7 Ke7 f8B+ Ke8 f5 d2 e7 Qd7 f6 Nh6 g6 Ra7 g7 Kf7 e8N Ra6 g8B+ Kg6 b6 Qa7 f7 Bf5 b7 Qf2 g5 Bh3 Rh2 Ra8 Bg7 Qg2 f8B Bd7 Nf3 Rh7 Be7 Bf5 Bd3 Qh1 Bd8 Be4 Bd5 Bf5 Bgf6 Na6 b8B Nb4 Rf2 Qe1+ B5e4 Kf7 Nc7 Nd5 g6+ Kf8 Ng5 Bc8 Qg4 d1Q Nd2 Nf5 Rb1 Nd6 Nf1 Re7+ Qe6 Qg4 Rb7 Qb4 Bd2 Ra6 Na8 Rb6 g7+ Ke8 Bbc7 Qa3 Bf4 Rb3 Bh2 Qc1 Bb6 Qe2 c7 Qb2+ Bd4 Nc4+ Kf5 Nd6+ Kg6 Qe3 Qh3 Re5 Qh4 Kd7 g8Q Kc6 Qe6 Qe1 Bc3 Kc5 Kg7 Qe2 Qd7 Qg4 Bb5 Qe6 Bd4+ Kb4 Be3 Ka3 Bbd3 Rf5 Nh3 Re5 Bh6 Qa1 Ng5 Qd4 Ra7 Qb2 Rb7 Ne8+
2nN1Q2/1p1P3p/R1RnR2R/3B1q1p/4N3/2bkq3/BRr2BPQ/3b1K1R w - - 0 1 illegal: Other
4nQ2/1P1pp3/Q2b4/7q/1pPBq2N/1B1NN1NN/qQ4Nk/r1RRKr2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 Rh7 a4 Rh8 b3 a5 Ba3 Ba6 Bc1 Bb5 Kd2 Na6 Ke1 Nc7 axb5 a4 Qd4 a3 Qd1 Nd5 Ra2 Nc3 Ra1 Na4 bxa4 Rb8 Bc4 Rc8 Bf1 Ra8 f4 Kf7 h4 Kf6 a5 g5 b6 a2 c6 g4 h6 g3 c7 g2 c8N Qc7 h5 Qa7 h7 Rb8 a6 Bh6 b7 Bg5 h6 Qd4 a7 Qd5 a8Q Qd4 Qe2 Qe5 Qa6+ Qe6 Nd6 Rc8 Nc4 Rb8 Nh3 g1Q Nbd2 Qa7 Ne3 Rc8 Ne4+ Kf7 f6 Kg6 f5+ Kf7 Bb2 Bh4+ Ng3 Re8 Rd1 a1Q Bd4 Kf8 f7 Qeb6 c4 Qa4 Qb2 Qc7 Bd3 Qca5 Bc2 Qa2 Bb3 Nf6 Rf1 Rg8 h8N Ra8 h7 Kg7 f8N Kh6 Nfg6 Ne8 f6 Rf8 f7 Qh5 Ngf4+ Bf6 Nhg6 Be5 h8N Bd6 Nh4 Qac5 Qa7 Qcd5 N8g6 Qe4 Qa6 Ra7 Ne5 Ra8 Ng1 Kg5 Ned3 Ra7 Rf2 Ra8 Rc2 Ra7 Rcc1 Ra8 N1e2 Ra7 Nfg2 Ra8 Nd5 Kg4 Nde3+ Kh3 Nef4+ Kh2 Nh3 Qb1 Qb5 Ra1 Qa4 Qa2 Qa6 Rh8 f8Q Rg8 Qg7 Rf8 Qg8 Rf2 Qf8 Rf1+
1R2rR2/B2p1B2/1P1Q1r2/7K/1r1QNqB1/1p1BPrp1/kn2Nn2/B1BN4 w - - 0 1 legal: proof: f4 b5 g4 c5 d4 e5 fxe5 h5 dxc5 Rh6 gxh5 Na6 a4 Rh8 a5 Nb8 b3 b4 Bh6 Bb7 Ra4 Bc6 Ra3 Ba4 Be3 Bd6 Bh6 Bc7 Ra1 Bb6 axb6 a5 Bd2 Bc6 Bc1 a4 Kf2 a3 Ke1 Ba4 bxa4 Ra5 Kd2 Ra6 Ke1 Ra8 Kf2 Ke7 Kf3 Ke6 Kg4 g5 h4 a2 c4 b3 h6 f5+ Kh5 f4 a5 f3 c6 g4 c7 g3 c8N f2 a6 Rh7 a7 Rg7 e3 Na6 h7 Ne7 h8B Rf7 c5 Rf8 c6 Re8 c7 Nc5 Nd6 Na4 c8Q Ng8 Qc6 Qf6 Ne2 Re7 Nbc3 Rf8 a8B Ref7 Qd4 Rd8 Nde4+ Ke7 e6 Rg7 Nd1 Re8 Qcd6+ Kd8 e7+ Kc8 Bd5 Qf4 Bf7 Rg4 Be5 Kb7 Be6 Rg6 Bg4 Ka6 Rh2 Kb5 Rh3 Rb8 e8B Nh6 Bf7 Re8 Rb1 a1R Rb2 Nf5 Ra2 Nb2 Ra8 Nh6 Rb8 Ka5 Qd3 Ka4 Qf8 Rg7 Bge6 Ng8 Rc8 Rg6 Ng1 Re7 Bb8 Ka3 Ba7 Nh6 Rb8 Qc7 Qh8 Qf4 Qd6+ Ka2 Bd3 f1R Ne2 Rf3 Rh2 Qf6 Rf2 Nc4 Bg8 Ng4 Rf1 Qf7 Qc3 Rh6+ Kg5 Re8 h5 Nb2 Qcd4 Rf4 Rf3 Nf2 Bg4 Qf8 Bd5 Rf5+ Kh4 Rfe5 Rf6 Rf5 B5c4 Rg6 Rf7 Qh6 Rf8 Rf3 Bf7 Qf4 h6 Nc4 h7 Rf6 Ba3 Rc1 Kh5 Na5 Bb2 Rc4 Bc1 Rb4 h8B Nc4 Q4d5 Rfe6 Ba1 Rf6 Qd4 Nb2
2K2qk1/4r1bn/NQ3Q1R/R3N2Q/1QnQbBP1/2P4n/q1N3Bb/2Qq3r w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kd5 a5 b4 d6 f4 h4 g4 a4 f6 e4 b6 e3 f5 a3 b5 a2 b7 h3 b6 h2 c6 e2 g6+ Ke8 f7+ Ke7 c7 e1B f6+ Kd7 g7 Bg3 Qd4 Qe7 Bg2 Nc6 b8Q Ne5 b7 Nc4 Na3 Ra7 Nf3 Be5 Bf4 Rh5 Rhb1 h1N Rb6 Nf2 c3 Rh8 Nc2 Nh3 Ra6 Rh6 Rh1 a1Q Ra5 Qa2 Rh2 Ra8 Qba7 Rh7 Qab6 Ra7 Rh1 Nf2 Rh6 Nh3 Ke4 Ke6 b8N Ba6 c8Q+ Rd7 Qcc6 Bb7 Na6 Qe8 Qb1 Re7 Qc1 Rh8 Bg5 Bf4 Ne5 Bh2 Bf4 Qd7 Qde3 Qc7 Kd4 Ba8 Qb6 Bc6 Qe4 d5 Kc5 d4 Qg6 d3 Qh5 d2 Rg6 Nh6 g8Q d1Q Qg7 Ng8 Rh6 Rh7 Qh8 Bg7 f8Q Qcd7 f7+ Nf6 Qfd8 Qe8 f8Q Qf7 Qb4 Be4 Qc7 Bd3 Kc6 Bg6 Kb7 Bf5 Qhg8 Be4+ Kc8 Rh8 Qfd8 Rh7 Qd4 Rh8 Ng6 Nh7 Qgd8 Qg8 Qdd2 Kf7 Qd4 Qe8 Qcb6 Kg8 Nf8 Qf7 Ng6+ Bf8 Q8d6 Bg7 Q6f6 Ng1 Rg5 Nf8 Qh3 Bg3 Rhh5 Rh6 Ra5 Nh7 Rhf5 Rh4 Ne5 Rh6 Qhh4 Rh5 Qhg5 Rh1 Qgg6 Bh2 Rh5 Nh3 Rh6 Kh8 Qgg5 Kg8 Qh5 Qf8+
6k1/2N2r2/N2qBP1r/rqN2BB1/1Nb1n2K/n5n1/Pb1NbRQ1/4RB1R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 Kf7 f4 b5 Kf2 e5 Kg3 h5 d4 c5 d6 c4 f6 e4 a6 b4 f5 b3 d5 e3 g6+ Ke8 g5 c3 f7+ Kd7 g7 c2 a7 e2 g6 e1N Nf3 b2 Nd4 Qc7 Qg4 Nh6 g8B Na6 g7 Nc5 Kh4 Ba6 Nb3 Bc4 Bh7 Ne4 g8B Bg7 N1d2 b1Q f8R Bb2 Qg2 Qb8 Rf6 Ke8 d7+ Ke7 d8N Qd6 Bf7 Kf8 Nc6 Be2 Nb4 Bc4 Kh3 h4 Na6 Be2 Bhg6 Rh7 Be6+ Rf7 Nbc5 Kg8 Nf3 Bc4 Bg5 c1R Nd2 Nc2 Bh7+ Kg7 Bg6 Na3 Bh7 Rh8 a8N Re1 Bg6 Kg8 N8c7 Qd3+ Qf3 Re3 Re1 Qb3 Qg3 Qb5 Qf3 Rb3 Qg3 Rb4 Qg1 Ra4 Qg2 Qe5 d6 Ra5 d7 Qd6 d8N Be2 Qg3 Bc4 Nc6 Rh7 Kg2 h3+ Kf3 h2 Ncb4 Rh8 Kg2 Be2 Kh3 Rh7 Kh4 Rh8 Rg1 h1B Qf2 Bhf3 Qg2 Bc4 Rh1 Bfe2 Bc8 Rfh7 Rf7 Rg7 Be6 Rhh7 f6 Rh8 Re7+ Rf7 Bgf5 Ng4+ Bh6 Ng3 Rd7 Nf2 Re7 Bh5 Bg5 Nfe4 Re2 Rh7 Rf2 Rh6 Bc8 Nc3 Re1 Nce4 Bce6 Bhe2+
Bn1N1N2/R3q2b/P1n1R3/KBbBPR2/5BB1/3N3r/1r1b4/knN1rq1Q w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 Kd7 d4 f5 Kd2 h5 Kc3 c5 a4 b5 e4 c4 e6+ Kd6 Kb4 f4 g6 h4 e5+ Ke7 d6+ Ke8 g7 c3 d5 f3 g5 f2 a6 c2 a7 h3 g6 h2 e7 Kd7 e8R Bb7 a5 Qb6 Ne2 Rh6 Na3 Ba6 Nc4 Qc7 Bf4 c1B Nb2 Nf6 g8B Rh3 g7 Bb7 Rg1 h1R Rg5 Qd8 Bf7 Qe7 g8B Bc6 Bh5 Bd2+ Nc3 Bb7 Rf5 Rg1 Bd3 Re1 Bg4 f1Q Qf3 Bc8 Qh1 Bb7 Bde2 Bc6 Nd3 Bb7 Kc5 b4 Kb6 b3 Na2 b2 Nac1 b1N Ra3 Bc6 Ra2 Ba4 Ra3 Bc2 Kb5 Qg7 Re6 Qe7 Kb6 Ne8 Ra4 Nc7 Ra3 Nca6 Kb5 Kd8 d7 Kc7 d8N Nb4 Ra1 Qh7 Ra2 Bc5 Ra3 Qe7 d6+ Kc8 d7+ Kc7 Nc6 Kb7 d8N+ Kc7 a6 Kd7 Rb3 Kc7 Ka4 Kb6 Nd4+ Nc6 Nb2 Rb8 Bb5 Bd3 a8B Be4 Rf7 Bh7 Nbd3 Rb7 Rb2 Rb8 Rf5 Rb7 Kb3 Ka5 Rc2 Nb8 Rc4 Bd6 Rc7 Rb6 Ra7 Bc5 Rh6 Rb7 N4e6 Rb6 Nf8 Rb7 Bd7 Rb5 Kc4 Ka4 Bgd5 Ka3 Re6 Rb6 Bb5 Rb7 Nb3 Ka2 Nc1+ Ka1 Kb3 Rb6 Ka4 Nc2 Be8 Rb2 Bb5 Nb4 Ka5 N4c6+
nq1qBr2/k1NPR3/b2R1Nr1/n1bQ1RP1/2br4/B1q3KN/4R2R/5Q1R w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 c5 d4 Kc7 g4 Kb6 b4 h5 d6 e5 g6 a5 d7 h4 g5 c4 f6 a4 f7 c3 d5 c2 g7 e4 d6 h3 f5 a3 f6 a2 Na3 h2 Qd5 e3+ Kg3 e2 Nh3 Nh6 g8N Qc7 d8R Be7 f8Q e1R f7 Nd7 Nf6 Ka7 b6+ Kb8 b5 Re6 b7 Ka7 b8R Ng4 Re8 Rh4 Rb6 Nge5 Rc6 Qd8 b6+ Kb8 b7 Rd4 Be2 Nc4 Nb5 Na5 Nc7 Nb6 d7 Bc5 Re7 Ka7 b8R Ba6 Ba3 c1Q Bh5 Qb2 Rae1 a1Q Rd6 Qb5 Re2 Qc3+ Qf3 Qb1 Qg8 Qb5 f8R Qbb3 Be8 Qb1 Nh7 Rg6 Qd5 Bc4 Nf6 Qbb2 Rf1 h1B Rff2 Qb1 Rh2 Bg2 Rh1 Bf1 Rc8 Rb8 Reh2 Bfd3 Qf1 Na8 Ree2 Rb2 Re7 Rf2 Rb8 Ba6 Rb2 Rff4 Rbe2 Qbb8 Nh7 Bac4 Rf5 Ba6 Nf6 Bdc4+ Kg2 Rh4 Kf2 Rh8 Kg2 Rf8 Kf2 Qa1 Kg3 Qc3+
1Nn4k/1qP1b3/3r1b2/1nRqNR2/3RB1KB/1Nr2Br1/2bBP3/1R1Qq2R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 d5 Kg3 a5 b4 f5 h4 Kf7 c4 g5 c6 Kg7 e6 d4 c5 d3 b6 f4+ Kg4 a4 c7 a3 b5 d2 h6+ Kh7 b7 f3 b6 a2 c6 f2 h5 Bc5 Bg2 f1Q Bf3 Nd7 b8R Bf8 e7 Ra3 e8B Ne7 b7 Nd5 Bg6+ Kg8 Bge4 Qe1 Rh4 Rc3 h7+ Kg7 Ra8 Be7 b8N Ba6 c8R N7b6 c7 Bd3 Ra5 Bc2 Rc5 Qg8 Re8 Nc8 Rf8 Qe6+ Rf5 Qc6 Rf8 Qb7 Rf5 Rd8 h8R Rd6 Rd8 Kh7 Rh1 Kg7 Rd7 Kh8 Bg2 Rh3 h6 Nc3 Nf3 Nb5 Ne5 Rc3 h7 Rh3 Na3 Rc3 Rb1 a1B Bgf3 Bb2 Kh5 g4 Nac4 g3 Na5 g2 Nb3 g1R Rd8+ Rg8 Rd7 Rd8 Kg4 Rdd3 Rd4 Rd6 Bg2 Rh3 Bgf3 Kg7 h8B+ Kh7 Bf6 Kg8 Bg5 Kh8 Bh4 Ba1 Ba3 Bb2 Qc1 d1Q Bb4 Qd3 Ba5 Qc4 Qd1 Qcd5 Rcc4 Bc1 Rc6 Bcg5 Rc5 Bgf6 Bb4 Rd3 Bd2 Re3 Rc1 Rc3 Rb1 Rg3+
3rB1N1/qP1QK3/1n4Q1/1QQ1Rb2/P3q1R1/Brr4k/RNQn2n1/q1b1Q3 w - - 0 1 illegal: No proof kernel
3n3K/n1rqn3/1bb2rRR/2P3b1/1NB3B1/1P1R3N/n1RB3n/2QB1kNB w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 e5 Ke4 a5 c4 h5 f4 d6 g4 h4 c6 h3 b3 a4 c7 a3 g6+ Kf6 b6 a2 b7 h2 g7 Be6 c8B Qe7 c5 Ra7 Bd2 Qd7 Qc1 Ne7 g8B Rh6 Nc3 Nbc6 b8N Nd8 Be2 Rc7 Bd1 Bc4 Bb7 Bb5 Na6 Bc6+ Bd5 Rg6 Nb4 Bh6 Bc8 Bg5 Nce2 Rh6 Rb1 a1N Nh3 Nc2 Neg1 Nd4 Rb2 Nb5 Ra2 Na7 Rc2 Kg7 f6+ Kg6 f7 Kf6 Ke3 e4 Kd4 e3 f5 e2 Be4 e1B f8R+ Nf7 Rg8 d5 Bg2 Nd8 Be4 Kf7 Ke5 d4 Bef3 Rf6 Rg6 d3 Bb7 Bgh4 g5 Beg3+ Bf4 d2 Bh5 Be1 Bdg4 d1N Bd2 Nc3 Bd1 Rd6 f6 Na2 Bhe2 Kf8 f7 Rf6 Rh6 Kg7 g6 Bg5 f8R Beh4 Bg4 Be1 Ne2 Beh4 Rg1 h1N Rg3 Nf2 Rd3 Nh1 Ba8 Ng3 Neg1 Nf1 Re8 Nh2 Reh8 Bb5 Bh1 Bc6 R8h7+ Kf8 g7+ Kf7 Rg6 Be1 Na6 Beh4 Rhh6 Be1 Be3 Ba5 Nb4 Bb6 Bd2 Rf4 Rgd6 Rf6 g8B+ Kg7 Rh4 Kg6 Bc4 Be3 Nf4+ Kg5 Rh6 Nb7 Rg6+ Kh4 Nfh3 Kg3 Re6 Nd8 Rh6 Rf3 Reg6 Bf4+ Kf6 Be3+ Kg7 Bg5 Nf4 Kf2 Nfh3+ Kf1 Kh8 Rf6
3r2B1/n3K1b1/2B1n3/r1B1nQPk/6qb/Q1B1B2b/rB1NPN1n/Q3RR2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 Ke3 f5 Kf4 Kf7 b4 Kg6 g4 a5 d4 c5 d6 h4 b6 a4 e6 h3 Ke5 f4 e7 c4 e8Q+ Kh7 g6+ Kh6 b5 c3 g7 a3 b7 c2 d5 a2 g5+ Kh7 b6 f3 d7 f2 Ke6 h2 d6 Ra7 Qe7 Kg6 Bg2 f1N Nd2 Kh5 Nh3 Ra3 Bc6 Nh6 g8B Nf7 Bb2 c1B Nf2 Ne5 Qf6 Ra6 Qf5 Bg7 Qb3 Ra5 Qa3 Qf8 Bc3 Bb2 Re1 a1N Rg1 Nc2 Rh1 Ng3 Rhf1 h1R Qa1 Qd8 Qa3 Qc7 Ke7 Nd4 Qa1 Ne6 Qa3 Na6 b8Q Nb4 b7 Qb6 d8B Qd4 d7 Qg4 Qa7 Rg1 Bd4 Bc3 b8B Rh1 B8b6 Rh4 Bh7 Rd8 Be3 Bd4 Bg8 Rh3 Rg1 Nf1 Bc5 Nh2 Rgf1 Bc3 Qa1 Ra2 Qa3 Rf3 Bed4 Rd3 Be3 Rd5 Bcd6 Ra5 Bdc5 Na6 Bbd6 Nac7 Bb4 Bd4 Bdc5 Nb5 Bc3 Na7 Bb2 Rf8 d8B Bc3 Bdb6 Rd8 Bb4 Bd7 Bec5 Bd4 B4c3 Be3 Nfe4 Bf2 Be3 Bh4 Bbc5 Bc8 Nf2 Bb7 Bd7 Bg2 Bc6 Bh3
n1B2rRr/1N2BN2/n6r/q3PbPN/b2nkN1B/2R2R1Q/1B5b/K2r2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 Kd2 c5 Kc3 h5 Kb2 a4 g4 c4 b6 f4 e6 Kd6 g6 f3 b7 f2 e7 h4 e8N+ Ke7 g5 h3 b5 h2 d6+ Ke6 g7 Be7 d7 Bb4 b6 Ra7 d5+ Ke5 d6 Rh6 Qd3 Ra8 Bh3 f1B Nf6 Rh8 Ra3 c3+ Ka1 c2 Nh5 Qc7 d8N Na6 b8B Bc3+ Bb2 c1N b7 Ne2 d7 Nf6 g8R Nd5 Bg4 Rh6 Qh3 Nb6 Nf7+ Kd4 d8B Bf5 Be7 Rh8 Ba7 Rf8 b8N Bg2 Rb3 a3 Nd7 a2 Nc5 Na8 Nb7+ Qc5 Bb8 Qa5 Bg3 Kd3 Ra3 Nd4 e5 Bc6 Bf2+ Ke4 Bh4 Be1 Rc3 Ba4 Rf3 Bg3 Rc3 Bg6 Bc8 Bf4 Ne2 Bg3 Rf1 h1R Rff3 Bf5 Ng1 Rh2 Na3 Rh1 Nb5 Bh2 Nc7 Rh6 Ne6 Rh8 Bc1 Rh6 Kb2 a1R Nef4 Rb1+ Ka2 Rh8 Bca3 Rb6 Bb2 Rc6 Nge2 Rd1 Ng1 Rd3 Kb1 Rch6 Ka1 Rd1+
8/B2rR1Pr/1QQ1n1N1/KQP2Nr1/Q2QrQnb/3b1q1k/1nB1b1R1/7N w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 e5 Kb4 d5 c4 h5 f4 d4 g4 e4 f6 Kg6 f7 h4 b6 h3 f5+ Kg7 f6+ Kg6 b7 e3 Ne2 a6 Na3 d3 Rg1 h2 Nc2 h1N Rg2 d2 Ng3 e2 Ne3 e1R Nef5 Qd4 Bd3 Qd7 Bc2 Rg1 Ka5 Qd3 b4 Rh5 c6 Qd7 c7 Ra7 b5 Qc6 b6 Nd7 b8Q Be7 f8Q Nf2 b7 Nc5 f7 Ne6 Nh1 Rh7 c5 Bd7 c8Q Qf3 Qc6 Nf6 Qfd8 Bc8 f8Q Nd3 Qd4 Nb2 Ra3 Re1 Re3 Bd7 Re5 Re4 Qbd6 Bc8 b8Q Rd7 Qbb5 Bb7 Qda4 Bc8 Qg1 d1B Bf4 Be2 Qgd4 Bb7 Qcb6 Bd5 Qdc6 Bdc4 Rd5 Bcd3 Bb8 Bd6 Ba7 Bg3 Re5 Bh4 Qbb8 Nf4 Re7 Ne6 Kb6 a5 Qfd8 Rg7 Qf4 Rh7 Ka6 Nc4 Qdb6 Nb2 Qb3 a4 Ka5 a3 Q3a4 a2 Re8 Kf7 Re7+ Kg8 g6 a1R g5 Rg1 g7 Ng4 Re8+ Kf7 g8N Kg6 Re7 Kh5 g6 Bf6 g7 Bg5 Nfh6 Kh4 Nf5+ Kh3 Rf7 Bf6 Nge7 Bg5 Ng6 Bh4 Re7 Ne5 Rf2 Rg5 Rg2 Ng4
N2B1qR1/3B1P1k/N1N4b/1b5B/1PQ1KRnr/r1r5/bn1rNRRN/n7 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 Kg7 d4 c5 g4 h5 f4 a5 b4 e5 b6 e4 b7 a4 f6+ Kg6 f5+ Kh7 d6 c4 d5 c3 d7 c2 g6+ Kh6 f7 a3 g5+ Kg7 d6 a2 Be2 h4 Qd3 h3 Rh2 Be7 f8R Rh5 f6+ Kh8 g7+ Kh7 g6+ Kh6 Nd2 Rh4 Rg2 h2 Bh5 h1B Qc4 Qc7 d8N Nc6 b8N Na5 d7 Qd6 Nf1 Ba6 Ne6 Bb5 d8N Ra7 Rf7 Bf8 Na6 Qf4+ Kd4 e3+ Kd5 e2 Nh2 e1R Ne2 Rg1 Nc6 Rd1+ Bd2 c1R Nec7 Rc2 Na8 Rc3 Rb1 a1N Rb2 N5b3 Ra2 Nc5 Rb2 Nd3 Be1 Rh3 Bh4 Rd2 Rc2 Qf2 Ra2 Nb2+ Ke4 Ne7 g8R Nd5 g7 Ne3 Rd7 Kh7 Rd4 Ng4 f7 Qe1 Bd8 Qg3 Rd5 Qd6 Rf5 Qb8 Rf4 Rh4 Ra5 Ba4 Raf5 Bb5 Rf2 Bc5 R5f3 Be3 Rf4 Qd6 Re8 Qf8 g8B+ Kg7 Bh7 Kh6 N6c7 Raa3 Bf5 Kg7 Bd7 Kh7 R4f3 Bg5 Na6 Bh6 Rf4 Qc5 Qa2 Bd3+ Kf3 Nf6 Rg8 Qf8 Ke3 Ng4+ Kd4 Bg5 Rg3 Bd5 Rgg2 Bh6 Qb3 Be6 Qd5 Bc4+ Ke4 Bb5 Qc5 Bb3 Qc4 Ba2
1R2R1r1/P1P3n1/b2rb2Q/2b5/2B1BBk1/2QKBN2/1N2Bb2/Rnq1r1Bn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 f4 Kf6 a4 b5 h4 g5 c4 d5 a6 e5 c6 g4 c7 e4 c5 b4 c6 d4 a7 d3 h6 g3 h7 g2 h5 b3 h6 b2 a5 Be7 a6 Qd4 Nf3 g1R Qe1 Qa4 Nc3 b1B Nd1 Bb7 c8B Qa3 c7 Bd5 Be2 Bc2 Be6 Bc5 Nb2 Nc6 Rh4 Rb8 a8B Nce7 a7 Rd8 Bc6 Ba2 Bc4 Nd5 Rg4 Nge7 Rg8 Ba4 Re8 Rhg8 h8R Nc3 h7 Bb5 Ba8 Ba6 Qh4+ Kg7 f6+ Kg6 f7 Kf5 f8B Rd6 Qh6 Kg4 f5 Re1 f6 Nf5 f7 Ng7 Be7 Bb3 f8B Ba2 Bf6 Bb3 Bd4 Nb1+ Ke3 d2 Rb8 Rg6 Be7 Rd6 Bg5 Ba2+ Bd3 Be6 Bf4 Nc3 Bc4 d1N+ Kd2 e3+ Kc2 Nf2 Be4 Nh1 Kd3 Qb3 Re8 Qd1+ Bd2 Nb1 Rb8 Rgd8 Re8 Qc1 h8Q Rc8 Bd1 e2 Bde3 Rf1 Bg1 e1B Be2 Bg3 Bge3 Re1 Bg1 Rc6 Bde3 Bf2 Qf8 Rb6 Qff6 Rc6 Qc3 Rb6 Re7 Rg8 Ree8 Rd6+
NK4bq/bRn3B1/1Q1NRrq1/3r1Nk1/1BB2bN1/1P2P1R1/1r4RN/2nr4 w - - 0 1 illegal: No possible last move
2Q4K/3B2b1/1r3n2/1BnN1n2/4k1PN/1QP1Bb1B/Bb1rN1q1/BRn1R2q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 e4 a5 b4 d5 g4 h5 c6 h4 b6 d4 g6 d3 g7 a4 c7 a3 b5 d2 b7 a2 b6 h3 Ne2 h2 Nbc3 Nf6 Kg5 f4 Kg6 f3 g8B+ Ke7 e6 Kd6 e5+ Kc5 e7 f2 e8N Nd5 e6 Kc6 e7 Nd7 b8Q Bb7 c8B Nc5 Nd6 Bg7 Nf5 Ra6 Rb1 a1B Nh4 Nf6 Nd5 Bb2 Bh3 f1N e8B+ Qd7 c3 Ng3 Qb3 d1N Re1 h1Q Bgf7 Ba8 b7 Nf2 Bg8 Nf5 Be6 Ba3 Bb2 Nfd3 Ba1 Bb2 B6f7 Rf8 Be6 Nc1 B6f7 Nh5 Kh7 Rb6 Be6 Rf6 B6f7 Rd6 Kg8 Bf8 Kh8 Nf6 Bg8 Ne6 Bgf7 Kc5 Bg8 Qc6 Bcd7 Bh6 Qc8 Qg2 Nc7 Rd2 b8B Qh1 Ba7 Qcg2 Bgf7 Bf3 Nd5+ Kd6 Bb5 Ke5 Bed7 Ke4 Bg8 Rd6 Be3 Nc5 Nb4 Rc6 Bgc4 Rb6 Nd5 Nd4 Qd1 Nf5 Ba2 Bf8 Qb3 Bg7#
1K4q1/1N3Q2/1nbQ4/BR1R2R1/1P2rb2/1R1rQ3/nqRnBR1P/q1Nnk3 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 f4 g5 d4 c5 f6 a5 h6 c4 d6 e6 d5 a4 h7 c3 f5 g4 b6 c2 b7 g3 f7 g2 f6 a3 d7 a2 d6 Qe8 d8Q Kb3 d7 Ba3 f8Q Qg6 f7 Ra4 Ne2 g1N Qd4 Nh3 Bd2 c1N Ba5 Kc2 Nd2 Kd1 Qe3 Nf6 Rg1 Qg8 Rb1 a1Q Nc4 Ne4 Nd6 Nhf2 Rg5 Nd2 Qfe7 Rh4 f8R Ke1 Qf7 Nd1 Qde7 Rh3 d8R Na2 Rc1 Rh4 Rc2 Bd7 Qef6 Qc1 b4 Bc6 Qff4 Qb2+ Qfd4 Na6 b8R Nc7 Rb5 Nd5 Nb7 Nb6 Kd6 e5 Kc7 e4 Kb8 Rf4 Rdd5 Rf3 Qb3 e3 Nc1 e2 Qbe3 Rf4 Qc5 Re4 Qd6 Qg6 Rc8 Rd8 h8R Qh7 Rf8 Qg8 Rd3 Rd7 Rb3 Rd8 Qh6 Rd3 Rcd8 Qbg7 Qhf6 Bb2 Rdd5 Be5+ Qd6 Bf4 Bg2 Qb2 Bf3 Kf1 Bh5 e1Q Bg4 Qf2 Be2+ Ke1 Rg2 Qg1 Rf2 Qgh8 Rg8 Qhc3 Rg6 Qa1 Rgg5 Qcb2 Rge5 Qg6 Rg5 Qg8+
2RR1Nbr/3N1qrb/QRN1N2N/1BrnR1BP/Bq6/br3k1P/2n5/2K5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Kd7 b4 g5 d4 a5 Kd2 c5 d6 Ke6 h3 f5 b6 a4 d5+ Kd7 b7 g4 b5 g3 b6 f4 e6+ Ke8 e7 Kf7 e8R Kf6 d7 Kg5 d6 a3 e5 f3 e6 Kf4 e7 f2 Bb5 f1B Ne2+ Ke4 Nbc3+ Kf3 Na4 a2 Rb1 c4 Nc5 a1Q Ne6 g2 Qa4 g1R N2f4 Rg7 Ng6 Na6 b8N Nb4 b7 Qa3 Nc6 Nf6 b8N Qc7 d8N Nfd5 d7 Nc2 Qa6 Bd3 Re1 c3+ Kd1 Qb2 Bg5 Qb4 Nf7 Qcf4 Nh6 Qf7 d8R Ra7 Qb7 Ra2 Qa6 Rb2 Kc1 Bf5 Nd7 Be4 Ngf4 Bh7 Re5 Bb7 Ng6 Bg8 Qa3 Ba6 Ba4 Bd3 Rc8 Bf5 Red8 Be4 e8B Bd3 Nge7 Bdh7 Ng6 Qbe7 Nf6 Ra2 Nb8 Nc7 Qd6 Na3 Qb6 c2 Kd2 Nd5 Qa6 c1R+ Rb2 Rc3 Kd1 Qd6 Rb6 Nc2 Kc1 Rb2 Beb5 Qc5 Nc6 Qd4 Rb7 Ba3 Nd7 Rc5 Ngf8 Qb4 Rb6 Rb3+
1brrQ1Q1/N1R2K2/N2R1R1B/2b2P1k/1P1r4/2n3q1/2nRbRBN/2R2q1b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 a5 f4 h5 d4 c5 g4 a4 b4 c4 g6+ Kg7 b6 Kh6 f6 h4 f7 a3 d6 c3 Kd5 c2 b7 e4 g7 h3 g5+ Kg6 d7 e3 Ke6 a2 f5+ Kh7 g6+ Kh6 d5 h2 d6 Qg5 Nf3 e2 Na3 e1B Bg2 Ra4 Rf1 h1B Rf2 Ra7 Qe2 Nc6 b8N Bb7 d8R Ra8 d7 Nge7 g8R Ba6 g7 Kh5 Nb5 Nd5 Na7 Qg3 Bh6 Nc3 Rc1 Bc5 f8R a1Q Rf6 Nd4+ Kf7 Bb5 Na6 Rc8 Qe7 Be2 Qe8 Bd2 Rf8 Bf4 g8Q Bb8 Nh2 Qb1 Rc6 Qa1 Rc7 Qb1 Rd1 c1R Rd2 Qbd3 Rc2 Rg1 Rc1 Nc2 Ke6+ Kh4 Rf6 Rd1 Kf7 Qb5 Rcc6 Rd4 Rcd6 Rc6 Rc8 Kh5 d8R Qbd3 Rc7 Qb5 Re7 Rc8 Rc7 Qbd3 R8d7 Qd1 Rd8 Qf1 R8d7 Rh4 Rd2 Rd4 Rdd6 Rh7+ Ke6+ Rf7 Qc6 Rd7 Qa4 Rdd8 Kf7 Qe1 Qae8 Qf1
2RNNr2/2R5/2NN1Nb1/2bP1Br1/1B1QN3/1rqP1Q1q/2b3nK/knBb4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kg3 f5 b4 c5 e4 h5 g6 a5 g7 f4+ Kh2 c4 g4 h4 e6 Kd6 b6 Ke5 g5 Kd4 e7 f3 e8Q a4 b7 h3 g6 c3 e5 c2 e6 a3 e7 f2 b5 a2 b6 Nc6 b8N Ne5 b7 Nf3+ Kg3 h2 Bh3 f1B Bf5 Qd7 Na3 Nh4 Qf7 Be2 e8N Nf6 g8N Ng2 g7 Rh5 Nh6 Bc5 g8N Rg5+ Kh3 Bh5 Nc4 Bg6 Ncd6 Ne4 Ngf6 Nc3 d3 Nb1 Qg4+ Kc3 Nc6 Ra3 b8B Rb3 Kg3 Qe6 Bc7 Bd7 Nf3 Qe4 Re1 h1B Nd2 Qa4 Re7 Qe4 Nd4 Ba4 Nc6 Qe2 Kh2 Qf3 Ba3 c1Q Bb4+ Kb2 Qd4+ Qc3 N2e4 Qg4 Qf8 Nd2 Rd1 a1R Rc1 Nb1 Nhf7 Raa3 Bb8 Ka1 Nfd8 Ra2 Rg7 Rf2 Rc7 Qe2 Rc8 Bh7 Bg6 Qg4 Qf7 Qb2 Na7 Ra3 Ng8 Bb6 R1c6 Bc2 Ndb5 Rb3 Bc7 Qc3 Bf4 Bc5 Bc1 Rf1 Qf4 Ne3 Nbd6 Bf3 R6c7 Bfd1 Nac6 Ng2 Qfe3 Rf4 Qf3 Rf8 Bf5 Bg6 Ngf6 Qh3+
3N2B1/R5RN/N3BrN1/1P1R2Nn/n2bqb2/K2rr2b/2PQ2qR/b3Bk2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 h4 Ke4 f4 a5+ Ka3 e5 b4 g5 b6 d5 b5 a4 h6 d4 b7 d3 f6 d2 f7 Ke3 f5 Kf2 f6 e4 h5 g4 h7 e3 h6 e2 Rh5 e1Q Nh3+ Kg3 Rd5 Nd7 b8R Qf2 Ng5 Qf3+ Nc3 Kf2 Rb7 g3 Bc4 Ne7 c6 g2 c7 Qe4 Na2 g1B Nb4 Nc5 Na6 Bh3 c8B Ng6 Be6 Bd6 f8N Nf4 f7 Nh5 Ng6 Rf8 h8R Bf4 h7 Qd6 Bb2 Qc6 Bc3 Rae8 Qc1 d1R Be1+ Kg2 Qd2+ Bf2 Ba2 Kf1 Bb3 Bd4 Re7 Rg8 f8N Rg7 Ra7 Rf7 Rg8 Rf6 h8N Qb7 Rg7 Qg2 Bg8 Re3 Nhf7 Qe7 Nfh7 Qee4 Qc3 Rdd3 Qd2 Rb6 Nd8 Rf6 Kb4 a3 Rc1 a2 Ka3 a1B Rd6 Na4 Bf2+ Re1 Rdd7 Bdc3 Bbe6 Bh2 Rd5 Bf4 Bh4 Kg1 Bg3 Qf1 Bh4 Ree3 Bf2+ Kg2 Bg3+ Qe2 Rh1 Qf2 Rh2+ Kf1 Bh4 Qfg2 Be1 Bd4+
Q3NBR1/2N1qb1n/2q1P2b/N2B1r1q/3BR3/QN4r1/n4P1k/1Nq1NKb1 w - - 0 1 illegal: No proof kernel
4nr2/NN1nR1BR/k1P1N1B1/n2br3/1PR1qb2/1Q1K1nQ1/R1R1r3/q6R w - - 0 1 illegal: No possible last move
k4NBq/1b3n2/NRP4P/1Rn2B2/Bb4Qr/Bn2b1qQ/B1KB4/1nN4r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 f5 h4 a5 b4 d5 e4 Kd7 c4 Kc7 h6 Kb7 e6 g5 c6+ Ka7 e5 a4 c5 f4 h7 a3 e7 d4 e8B a2 e6 f3 c7 d3 e7 g4 h5 g3 b6+ Kb7 b5 g2 Ne2 g1N Nd4 f2 Qg4 Bg7 Ba3 Ra7 Bf7 Ra4 e8B Qf6 Nc3 Ra6 Rb1 a1B Ne6 Ne2 Na2 Ka8 b7+ Ka7 Nf8 Ra4 Nc1 Bd4 Ba2 Na6 b8N Ka8 b6 Bb7 c8B Nh6 Bf5 Nc3 Rb5 Nf7 c6 Nc5 Na6 Qe5 Bed7 Rc4 Bde6 Qg3 Be2 Bge5 Bd1 Bd6 Ba4 Nb1+ Kd1 f1N h6 Rg8 h8Q Be3 Qc3 d2 Kc2 Rg5 Rh2 Rh5 Rg2 Rh1 Rf2 Nh8 Bg8 Rb4 Qb3 Nf7 Qe6 Rd4 Qh3 Rg4 Rf4 Rh4 Rfb4 Be7 Qg6 Bd6 Qgg4 d1Q+ Kb2 Qd5 Kc2 Nfd2 Rb3 Bc8 Rb2 Qd4 b7+ Ka7 b8B+ Ka8 Bc7 Bb7 Ba5 Qh8 Rb6 Be7 R2b5 Ndb3 B5b4 Ne6 Bc3 Bb4 Bd2 Nec5
kqNbn3/2r3RP/4R2P/2qRQ3/4n3/q1BRr3/1Nb2NKq/R1BBr2B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 b4 g5 e4 c5 d4 Kc7 h4 Kb7 h6 a5 e6 f5 e7 a4 e8R c4 d6 c3 e5 c2 e6 g4 d7 a3 e7 a2 b6 f4 h5 g3+ Kg2 Ra5 d5 Rh7 d6 Bg7 b5 Ka8 b7+ Ka7 Qe2 Nc6 b8N Qc7 d8R Ne5 b6+ Kb7 d7 Ka8 b7+ Ka7 Nh3 Nf6 Nd2 Neg4 Rg1 Ne4 Nc4 Ra3 Nf2 Ngf6 Nb2 Re3 Qb5 Qe5 Be2 Bh8 Bd1 f3+ Kh1 Qd6 Qe5 g2+ Kh2 Rg7 h7 Qa3 h6 Rf7 Rg8 Ne8 Re1 Bf6 Rg7 g1Q+ Kh3 N8d6 e8B Qh2+ Kg4 Re7 Bg6 Ne8 Nc6+ Ka6 b8B Kb7 Bf7 Ka8 Bd5 Qb4 Ba7 Qb8 Bd4 Ba6 Bc3 Bd3 Rc8 Bg5 d8R Rc7 Rdd7 Bd8 Ne7+ Rb7 Rc6 Ra7 Nc8 Rc7 Rb1 a1Q Rcd6+ Qb7 Bc6 Qa3 Rd5 Qc5 Ra1+ Qa3 Nh3 f2 R7d6 f1R Nf2 Rh1 Re6 Rf1 Re2 Re1 Rd2 Bc4 R2d3 Bb3 Ba4 Qb5 Bf3 Qb8 Bh1 R3e2 Kf3 Qc5 Bg5 c1Q Bf4 Bc2 Bfd2 Qb1 Bc1 Qa2 Bb3 Qaa3 Ba4 Qh5+ Kg2 Re3 Bb3 Bb1 Bd1 Bc2 Qd4 Qh4 Qe5 Qh2+
1b1b4/n3B1P1/Q4QnQ/1K1b1B2/RB1P1Q2/qRr2Q2/N2n3N/kr2n1Qq w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 b4 h5 f4 c5 g4 a5 g6 e5 f6 h4 b6 h3 b5 a4 g5 a3 b7 a2 f7 h2 b6 Rh5 d6 Qe7 d7 Rh4 d8B Ra5 f5 Ra7 f6 Be6+ Kb5 c4 Ba3 c3 Nf3 c2 Bh3 Nc6 b8Q c1B b7 Bf4 Qc8 Rh6 b8Q Rc7 Qa6 Bd5 Qc1 Kd3 Nc3 e4 Bc5 Bg7 f8Q e3 f7 e2 Qbb6 Qe3 Bb4 Bf6 Rb1 Rh5 Qh6 a1N f8Q Nb3 Ra1 B4e5 Ra4 Nge7 Na2 Bg3 Qa3 Kc2 Rb1 Nd2 Qb8 Rh4 Bf5+ Re4 Qfh8 h1Q Nh2 Qc3 Q8g7 Qb2 Qe3 Qa3 Rb3 Bd6 Qf3 Na7+ Ka5 Rc3 Qc7 Bc5 Qcf4 Bd6 Kb6 Bb8 Qf8 Nec6 Qfh8 Be7 Qf6 Ne5 Ka5 e1N Kb6 N1d3 Ka5 Re1 Kb6 Bed6 Be7 Rb1 Ka5 Nc8 Kb5 Bdc7 g7 Ba5 g8Q Bd8 Bh3 Ne1 g6 Rc7 Rc3+ Kb2 Bf5 Ka1 Rb3 Rc3 Qgh7 Nf1 g7 Nd2 Qhg5 Ng6 Qhh6 Ba5 Qgg4 Bd8 Qg1 Na7+
1RbB3K/2Pbr1P1/2b1QQ2/4N1B1/2q1n1BN/2R1B2B/3r1B1k/n1q1Nrb1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 b4 d4 c4 d3 g4 e6 f4 d2 g6+ Ke7 g5 a4 b6 a3 b7 h4 c6 h3 g7 a2 c5 h2 f6+ Kf7 c7 Kg6 c6 Qe8 f5+ Kh7 f7 Qd7 g6+ Kh6 f6 Kg5 b5 Kh4 b6 Kg3 Na3 Rh4 Rb1 a1R Nc4 R1a4 Bh3 Qe7 Nf3 Qd8 Qf1 d1B Be3 Bc5 f8B Qd7 f7 Bc2 Ne1 Bb3 Be7 Na6 f8N Ra1 b8B Ba4 b7 Rh7 B7g5 Nf6 g8Q Qf7 Ba7 Nb4 b8B Ne4 Qf6 Nc2 Bb6 Ra2 B8a7 Na1 g7 Rd2 Ng6 Rh6 Rf1 h1B Rf3+ Kh2 Nh4 Rh8 Qe8 Rf8 Bf2 Rb8 Rc3 Rb7 Kf4 Qg8 Ne5 Be3+ Kg4 Bd4 Kh5 Qf7+ Neg6 e5 Kh6 Qc4 Kh7 Bf3 Qd7 Bg4 Qe8 Bgd7 Qee6 Rf7 Kh8 Re7 Ba5 Rb3 Rc2 Rf3 Rc3 Bc5 Bfe3 Rf1 Rb8 Bb5 Bh6 Ba4 Beg5 Bg1 Bf2 Nc5 Bg4 e4 Ne5 e3 Bh3 e2 Bge3 Rd5 Bhg5 Ne4 Bab6 Rd2 Ba5 Bb7 c8B Ba6 Bd8 Bb7 c7 Bac6 Neg2 e1Q Bg4 Qc1 Ne1 Ba4 Bh3 Bdc6 Qg8 Bab5 Bcg4 Bc8 Qgf7 B6d7 Q7e6 Bbc6
q3N2q/1P1b4/4PrB1/q1bRR3/Q7/NrNq1nKQ/N1r2NR1/2BNnk2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 b4 g5 e4 c5 d4 a5 h4 f5 e6+ Kd6 e5+ Ke7 b6 g4 b7 a4 d6+ Ke8 d7+ Ke7 b5 a3 b6 f4 d5 a2 h6 c4 h5 f3 h7 c3 h6 c2 Na3 Ra4 Ne2 Ra7 Rg1 Bg7 Kg3 f2 Nc3 Na6 b8N Nb4 b7 Qa5 d8N Ra6 Nf7 Nf6 Bd3 f1Q Ng5 Nd7 Nh3 Bf8 Bg6 Nd3 Nf2 Ne1 Rg2 Qfb5 Rb1 a1Q Rb4 Rg8 Re4 Qd3+ Re3 Rb6 h8Q Rb3 h7 Rg7 Na6 Rf7 Nb4 Rf6 Nba2 Qb2 Bd2 c1R Qc2 Qa1 Ncd1 Qa8 Qc6 Rc2 Qa4 Qac3 Bc1 Qca5 Kh4 g3 Kg4 Kd8 e7+ Kc7 e8N+ Kb6 e6 Kc5 d6 Ne5+ Kh3 N5f3 d7 Kd5 d8R+ Bd7 Kg4 Bb4 Re5+ Kd4 Qf8 Qe2 h8N Qe3 Nf7 Qd3 Nb1 Kc4 Nfd6+ Kd4 Nc4 Bc5 Rg1 g2 Nbc3 Rbb2 Qh8 Rb3 Rf1 g1Q+ Kh3 Bb4 Na3 Qh1+ Kg3 Qh6 Qh7 Qg7 Rg1 Qh8 Nc4 Bf8 Rg2 Bc5 Na3+ Qc4 Nfe4 Kd3 Qh3 Qd4 Ncb5 Qe3 Nef2+ Ke2 Nbc3+ Kf1 Ne2 Bc8 Rdd5 Bd7 Nec3 Qd3
1rR3N1/kPb1RB2/4P2n/N2rR3/2RR2Qn/r3n1N1/1BB2K2/2rqNbq1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 e4 c5 d4 Kc7 e6 Kb7 d6 g5 e5 f5 e7 f4 e8B g4 d5 a4 e6 f3 d7 a3 h6 c4 b6 c3 h5 a2 b5 c2 d6 g3 h7 g2 h6 Nc6 Bd3 Na7 Na3 Qg5 d8R Qe3+ Ne2 g1N d7 Kb8 b7 Qe5 Rh5 Nc6 Kf2 Qe4 Bb2 c1Q Bf7 Qd5 Re8 Qdg5 d8R Qg6 Bc2 Qb1 Re5 Nb4 Rd4 Ka7 b8N Bd6 Re7+ Bc7 Ng3 Ba6 Rc4 Nd5 b6+ Kb7 Qd4 Qd1 Nc6 Rb8 Qg4 Ne3 Na5+ Ka8 b7+ Ka7 Rc1 a1R Rd4 Ra2 Bb3 Bb5 Nc2 Ra3 Ne1 Bf1 Rcc4 Rd8 Bc2 Rd5 Re8 Nf6 Re7 Rb8 h8R Ng8 h7 Nh6 Rc8 Qg7 h8N Qg6 Ne2 Qg5 Kg3 f2 Ng6 Nf3 Nh4 Ng8 Nf5 Nh4 Nh6 Qg6 Nf4 Qg7 Nh5 Qg5 Nf5 Nh6 Nf6 Bh3 Ng8 f1R Bh5 Rh1 Kf2 Bf1 Bf7 Qh5 Nb3 Nhg2 Nc1 Be2 Nb3 Qd3 Nf3 Rc1 Ree4 Qh1 Re5 Qdd1 Ne1 Nh4 Na5 Bf1 Ng3 Qg1+
1bN3RB/P2Q1R2/1QP1Rr2/2RNqbK1/2qr2R1/1r4n1/3k1n2/Rnr2BQ1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 a4 b5 c4 d4 h4 g6 a6 d3 a7 d2 h6 e6 h7 b4 a5 b3 c6 b2 h5 Bc5 h6 Bf8 a6 Ne7 c5 Nd7 c7 Rg8 h8Q+ Bg7 h7 Ne5 c6 Nd7 Na3 b1N Bb2+ Ne5 Rh4 Qd5 Rg4 Qd3 Nb5 Rf8 Ne2 Rb8 Nd6 Rb3 a8R Qc4+ Bd4 Bd7 c8Q Rf7 Qc1 d1R a7 Rf8 Nc3 g5+ Kg3 Rf7 Qhd8 Bh6 h8R Rd3+ Be3 Rd4 f4 Nd3 Rg8 e5 Qb6 e4 Re8 Be6 Qd7 Nf2 Nc8 Rf8 Bd2 e3 Kf3 e2 Ke3 Kg7 f6+ Kg6 f7 e1Q+ Kf3 Kh5 f5 Qe5 f6 Nf5 Be3 Kg6 Nd5 Ng3 Qe1 Bf5 Re6 Nc3 Bd2 Nb1+ Bc3 Bg7 Be2 Kh5 Qg1 Kh6 Bf1 Kg6 Re4 g4+ Ke3 Kg5 Rb8 Rh8 f8R Rh6 f7 Rf6 Rfe8 Bh6 f8R Bg7 Rf7 Bf8 Qb4 Bd6 Rb5 Bb8 Rd8 Ngh1 Rc5 g3 Rde8 g2 Qb6 Ng3 Rg8+ Bg6 Qh2 Kf5 Kf3 g1R Rg4 Rh1 Bh3 Rc1 Bf1 Bh7 Qg1 Rf4+ Kg2 Ke4 Bd4 Bf5 Kh2 Nfh1 Kh3 Nf2+ Kh4 Kf3 Kg5 Re4 Bg2+ Ke2 Bf1+ Kd2 Ne3 Qd6 Be5 Rd4 Nd5 Rh6 Bf6 Qe5 Bh8 Rf6
B2bQ3/qN6/NbB1b2n/N4bBb/r2K3b/1PB3B1/n1k1P2R/rR4RN w - - 0 1 illegal: No possible last move
3R1nq1/Rn1nB2n/1b5P/1bQr1NPk/3R2N1/BRK3Rr/n1n5/1BQR4 w - - 0 1 illegal: No proof kernel
5k1q/BBNn1Nr1/1QbP1n2/3RN1Q1/1r2rKn1/3r2B1/1P2BR1n/1B3Bb1 w - - 0 1 illegal: No possible last move
1B2r2B/4n3/B4B1b/NP1RN2p/2Q1b1RK/3B1n1P/N2RR2n/k1br2rq w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 f4 Kf7 Kf2 a5 Kg3 h5 e4 g5 c4 d5 c6 a4 h3 a3 f6 Ke6 c7 a2 c5 d4 f5+ Kd7 c6+ Ke8 e6 g4 e5 d3 f7+ Ke7 Bf4 d2 Nc3 Rh7 Nf3 Bg7 f8B+ Ke8 f6 Qd7 e7 Kf7 e8R Ra6 e6+ Kg6 e7 Kf5 f7 Rh8 Bd3+ Ke6 Kh4 g3 Ne5 g2 Rd8 g1N e8R+ Ne7 Qe2 d1R Rh2 Bb7 c8B Bh6 c7 Be4 Bg7 Nc6 f8B Nd4 Bf6 Ra3 Ba6 Qd5 Rc1 a1B c8N Bb2 Na7 Ra1 Nac6 Kf5 Rc2 Bc1 B8g7 Rb1 Rg2 Ngf3+ Kg3 Ke6 Rd2 Nh2 Na2 Ndf3 Na5 Qc6 Rd5 Rf8 Rc8 Re8 Bh8 Ra1 Qf1 Qb7 Rge2 Qc6 Rc5 Kd6 Rc4 Kd5 Rc5+ Kd4 Rc7 Nc8 Rg7 Ne7 Rg4 Qa8 Nb4 Rb1 Rd5+ Kc3 Rg6 Rb2 Rg4 Rc2 Na2+ Kb2 Nf7+ Kb1 Bb8 Qc6 Ne5 Ka1 Qf2 Rb2 Qc5 Rb1 Qb4 Qc5 Qc4 Qg1+ Rg2 Qh1 Rge2 Rg1+ Rg2 Bb2 Ba7 Ng5 Kh4 Rbd1 Rge2 Bc1 Bb8 Ngf3+
Q2BrR1r/1K3b1n/1PP2bN1/1N1qp1B1/3R1BN1/1Br2BR1/1b3Nn1/n3k3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 d5 h4 g5 f4 a5 b4 g4 c4 a4 c6 g3 Kc5 d4 b6 d3 c7 d2 b5 g2 b7 e6+ Kb6 a3 c5 a2 c6 Qe8 h6 Na6 b8B Be7 h7 Bd7 c8B Ra7 h5 Qf8 h6 Nc5 Rh3 Nb3 Na3 Bd6 Be2 Be8 Bf3 Qf7 Rg3 Bd7 Nh3 g1B+ Nf2 Ra4 Kb7 Bf8 b6 Nd4 Nb5 Rb4 Qa4 d1R Qa8 Rb3 Rb1 Re3 Rb4 Nc2 Rd4 a1N Bc7 e5 Bd8+ Be7 Bd2 Be8 Be6 Rc3 Bb3 Qd5 Be3 Kf7 f6 Ke6 f7 Kf5 f8B Bg5 Bfe7 Ne1 Bd2 Bh4 Bg5 Nf6 Be3 Ng2 Bc1 Rf8 h8N Nh7 Ng6 Bf7 Be3 Re8 Bd2 Nf6 h7 Rf1 h8N Nh7 Nf8 Re1 Nd7 Ree3 Ng6 Re4 Bh6 Bf6 Bg5 Ree3 Nc5 Re1 Ng4 Bf2 Ne4 Rh1 Bc1 Be1 Be3 Bd2 Nef2 Bc1 Bd2 Bb2 Na3 Ke6 f5+ Kd6 Bdf4 Kc5 Bc4 Kb4 Nb5 Bh8 f6 Rh6 Bce2+ Kb3 Bc4+ Kc2 Ne3+ Kc1 Bb3 Rh4 Rc4 Kd2 Neg4+ Ke1 Rd4 Be6 f7 Bf6 f8R Bg8 Bc1 Bf7 Bgf4 Ng5 Bce3 Rh8 Bc1 Nh7 Bg5 Rd3 Bcf4 Rc3
1r1B1B2/bN3B1q/K6N/3Pn3/1nqBNR1Q/PB2Rbq1/r2bpQ1B/2k5 w - - 0 1 illegal: No possible last move
R1RRqQ2/1b4rN/3K3n/1PBr1p2/2kPB3/1r2RN2/3BN2q/1nqRb1B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 f5 h4 a5 b4 c4 e4 c3 d6 Ke6 h6 c2 b6 a4 h5 a3 b5 g6 d7 a2 b7 Ra6 h7 Ba3 h6 Rc6 Bg2 Bc5 Nf3 Ba7 Nc3 Ra6 Ne2 Qf8 d8R Nc6 b8B Qa3 Bd6 Bf2 Bc5 Nd4 d3 Qa5 Bd2 c1Q Qc2 Bh4 Rd1 Bb7 Qc3 Ra7 Qa3 Nb3 d4 Kf7 e6+ Kf6 e7 Ke6 e8N Be1 Rc8 Qd8 e5 Kd5 e6 Kc4 Ke5 g5 e7 g4 Nf6 Qe8 Kd6 g3 Bh1 g2 Rd8 Qh5 e8R g1Q Re3 Qe8 Bg2 Qc3 Rac1 a1R Ra8 Rb1 Rc2 Ne7 Bh1 Rf8 h8B Ng8 Nh7 Qh2+ Be5 Rf7 Bg3 Re7 Rcc1 Re5 Bf2 Qc2 Bg1 Qc3 Nhg5 Rb2 h7 Nh6 h8R Rb1 Nh7 Qc2 Bdb4 Nd2 Rg8 Rb3 Rh8 Nb1 Bd2 Qeh5 Rhd8 Qe8 Nh4 Bc6 Be4 Rg7 Nf3 Bb7 Qa7 Ba6 Qe7 Bc8 Qf8 Qc3 Rc2 Bb7 Rca2 Qb2 Rac8 Qc1 Raa8 Rd5#
K1Rb1bN1/1R2B3/N1rqnR2/P3QbR1/2Pp3R/k1n5/Br2Bq1R/2q4Q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 a6 g5 Ke2 e5 Kf3 Ke7 Ke4 b5 Kd5 d6 a4 e4 h4 b4 f4 e3 a5 g4 f6+ Kd7 h6 b3 f5 b2 a7 g3 c6+ Kc7 f7 g2 f6 e2 h7 e1Q h5 Bg4 h6 Qd7 Ne2 g1B Bg5 Bf5 Nd4 Bf2 Nc3 b1Q Rh2 Qe2 Ne6+ Kc8 c7 Kb7 Ne4 Ka6 N6c5+ Kb5 Na6 Be7 f8R Qc8 f7 Qb4 Nf6 Bb6 Rb1 Ka4 Rb3 Qe3 Be2 Qbc3 Qh1 Qd8 c8B Bd3 Be6 Qe1 c3 Nd7 Kc6 d5 Kb7 Rc8 a8R d4 Rb8 Bb4 Ka8 B4c5 Rb5 Q1c1 Ba2 Rc6 c4 Qf2 Re8 Bb4 f8R Nc5 Re4 Qd7 Reh4 Ne7 Rf7 Rd8 h8Q Ka3 h7 Nd5 Ng8 Ne6 Bf6 Nc3 Rg5 Rdc8 Bd8 Qe7 Qe5 Bf5 Rf6 R8c7 Rc8 Rb7 h8R Qd7 R8h7 Bf8 Rhf7 Qd6 Rd7 Bc7 Be7 Bd8 Rdc7 Rbb6 Rb7 Rb2
R1K3q1/1BB1RQNb/4Q3/PnR2Q2/2pN2r1/q3Q1P1/kn1r3n/2b2QQr w - - 0 1 illegal: No possible last move
NKb2b2/3rqk2/2q1R1p1/2R1n1Br/1P3B2/2NNNQB1/1nB1b2P/RB5r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Ra6 f5 Kf2 c5 Ke3 f4+ Ke4 f3 d4 c4 b4 g6 d6 f2 Kd5 c3 e4 c2 h6 Kf7 h7 Bh6 b6 Qd7 b7 Qa4 d7 Ne7+ Kd6 Nd5 d8N+ Ke8 e6 Bg7 e5 Nf4 Kc7 Kf8 e7+ Ke8 d5 Be6 d6 Bh3 Ne6 Kf7 e8N Qa3 d7 Ng2 d8B Qa2 Nc5 Qa3 e6+ Kf8 e7+ Kf7 Nd2 Bc8 Ne2 Bc3 Nc4 Nc6 Bf4 c1Q Ne3 Bg7 b8R Qc2 Rb5 Ne5 Re6 a5 Rg1 Ra7+ Kb8 a4 Nc7 Qc4 Na8 Bf8 Nc3 Ne1 Bd3 f1B Qf3 Be2 Be4 N1d3 e8B+ Kg7 Rh1 Nb2 Bdg5 Re7 B8c6 Kf7 Bd3 Qaa2 Bce4 a3 Bf5 Qd5 Bg3 Qc6 B5f4 Rg8 h8B Ra7 Bg7 Rh8 Bf6 Rh5 B6g5 Rc7 N5e4 Re7 Nf2 Rc7 Rc5 Re7 Rd6 Qe6 Rg1 Qed7 Re6 a2 Rc1 a1R Rh1 Rd1 Rg1 Rd2 Ra1 Rd1 Bb1 Rh1 Bfc2 Qe8 Nd3 Rd7 Ra4 Qd8 Ra1 Qe7
1BQ1r3/N1b4Q/1k3P2/1r3N1n/QR2NR2/PN2N1q1/3Kp1qb/N2nnB1b w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kd7 h4 c5 d4 Kc7 f6 e5 a6 g5 d6+ Kc6 d7 b5 a7 c4 f7 e4 d5+ Kb7 f5 e3 a3 g4 f6 b4 d6 g3 h6 b3 h7 c3 h5 b2 h6 e2 Rh4 c2 Nh3 g2 Nf2 g1Q Nd2 b1N Nb3 Nc6 Rb4+ Ka6 Ne4 Qh2 Bf4 Qc7 d8Q c1B d7 Be7 f8N Bc5 Ne6 Qg1 Ned4 Qg5 Nc2 Qb7 Bb8 Nge7 Qg8 Qg4 d8N Nd4 Nc6 Nd5 Qd8 Rf8 h8Q Bb6 h7 Bf4 Qg7 Qg6 h8N Re8 Nf7 Nbc3 Qh7 Bh2 Nh6 Bbc7 Kd2 Nf4 Nf5 Qg3 Rb1 Be6 Qc8 Nh5 Nca1 Nc2 Rd4 Ne1 Qc2 Nd5 Qc4+ Kb6 Qa4 Nc3 Rb4+ Nb5 Rc1 Bd7 Rc3 Be6 Rf3 Bd5 Rf4 Re5 Ne3 Rf5 Ne7 Re5 N7f5 Bc6 Rc4 Nc3 Rb4+ Rb5 Nf2 Ng7 Qe6 Be5 Bd6 Rd8 Qc8 Re8 Bb8 Re6 Rg4 Bh1 Rgf4 Qbg2 Ne4 Re8 Rh4 Bc7 Rf4 Nh5 a8N+ Kc6 Qe6+ Kb7 Nb6 Q2f3 Nc8 Nd1 Na7 Qfg2 Qc8+ Kb6
b4N2/RN2K3/B1r2P2/R1q1bq1n/1pRR2P1/1r1n2Bk/2Qr1nRN/4N2B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 e5 Ke4 c5 a4 b5 f4 h5 d4 c4 g6 b4 f6 c3 Kf5 h4 g7 e4 f7 c2 d6 h3 d5 h2 a6 e3 a7 e2 a5 e1R a6 Rh3 Ra5 Re7 Nf3 Re3 Nbd2 Rg3 Ne1 Ra3 Ndf3 Ne7+ Kf6 Ra4 g8R Nbc6 f5 Rb8 a8B Ne5 a7 Bb7 Bf4 c1Q Ba6 Qdc8 Qc2 N7g6 Rf1 h1N Nh2 Rc3 Bg3 Rc6 Rf4 Nf2 Rc4 Nf4 Rg4 Bh6 Rg7 Ned3 f8N+ Ke8 Rg6 Ra3 Rg8 Rb3 Rg7 Rc7 d7+ Kd8 Kf7 Rc6 f6 Nh5 Rg5 Qf4 Rg7 Kc7 d8N Kd6 Rg8 Ke5 Ke7 Kf5 d6+ Rc5 d7 Qd6+ Kf7 Bf4 Rg7 Qdc6 Ke7 Be5 Rgg4 Qf3 Rgd4 Bd5 Nb7 Rc6 d8R Be4 R8d5 Kg5 Ra2 Qff5 Rda5 Bd5 Bf4+ Kh4 g4 Kh3 Bg3 Nh1 Qc3 Bf3 Rg2 Nhf2 Qc2 Be4 Nc5 Rb5 B8b7 Rbb6 a8R Rd6 Bd5 Qc6 Nb7 Qc5 Ra7 Bf3 Bf7 Bc6 Bd5 Rd8+ Nd6 Ba8 Be4 Rc6 Bf3 Qb5 Nb7 Qc5+ Rd6 Nhf4 Rg1 Nh5 Bh1 Nb2 Rg2 Qb5 Rd5 Rdd6 Rdc5 Rd2 Rd5 Nbd3 Rdd4 Qc5+
2N1Qn2/1nq1rN1b/2b2pNQ/1K3RN1/5Rq1/2PN1r1P/1nkbQ1N1/2B4B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 e4+ Ke6 b4 g5 c3 a5 b6 d5+ Kb5 a4 h6 f6 h3 d4 c6 g4 h7 a3 c7 d3 b7 d2 Bg2 a2 Na3 g3 Nc4 Qd6 Ne3 Nc6 b8Q Ra6 Nf3 Na5 Qe2 d1B Rf1 Ra7 Bh1 Nc4 Ng2 Bb7 c8N Qc7 Rb1 a1N Ng5+ Kd7 Rf4 Bh6 Rb2 Bc2 Rb3 Ne7 e6+ Kd8 e5 Rg8 h8N Ng6 e7+ Kd7 e8N Nb2 Rf5 Nf8 Ng6 Bd5 Ra3 Nb3 Ned6 Nc5 Ndf7 Nb7 Ra4 Rg7 Ne6 Bd2 Neg5 Rh7 Qa8 Rh4 Qb8 Rf4 e6+ Ke8 e7 Kd7 Qa8 Rf3 Qb8 Nd8 Qb6 Nb7 Qd4 Bb1 Qh4 Bc2 Qh6 Bce4 Nd8 Bg8 Ndf7 Bh7 e8N Bd5 Ng7 Be4 N7e6 Bd5 Ne1 g2 Nef4 g1Q Nfd3 Qg4 Ng2 Qcc4+ Kb6 Bc6 b5 Qcf4 Rb4 Qd6 Rbf4 Qe5 Ne4 Ke6 Neg5+ Kd5 Nc5 Ra4 Nd3 Re4 Ka6 Kc4 b6 Na5 b7 Kb3 b8Q+ Kc2 Qb5 Qc7 Qe5 Nb7 Qe8 Bd5 Kb5 Re7 Nde5 Be4 Nd3 Bc6+
4q3/1n1Qb2R/k2P1N1Q/1R2NQr1/K6P/1r1bp2r/Bn1Nn1Nq/2N1B1N1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 d4 e5 Kd2 a5 Kc2 c5 Kb3 Kc7 f4 Kb7 f6 g5 d6 e4 b6 c4+ Ka4 g4 d5 g3 b5 c3 f5 e3 d7 c2 h6 g2 h7 Qe8 f7 Be7 f8N Bc5 f6 Qg6 f7 Nf6 Bd2 c1R Bc4 Ne4 Ne6 Ng5 f8Q Rc3 Qf5 Qh5 Nd4 Bb4 Ba2 Be7 Nde2 Bf6 Be1 Be7 Nc1 Nc6 Nd2 Nb4 Rb1 Rb3 d8Q Qe2 Qdf8 Ne4 Qh6 Nd6 h3 Rg8 h8N Rg5 Ng6 Nd3 Nf4 Bd7 Rh2 Rh8 Rh1 Qh5 Rh2 Qe8 Rh1 Ka8 b7+ Ka7 b8N Nb7 Nc6+ Kb6 d6 Be6 Ne5 Bc4 Qdg4 Ka7 Nge2 g1N Ng2 Kb6 Qd7 Ka7 b6+ Ka6 Qf5 Rh7 Nd4 Ne2 N4f3 Rb4+ Ka3 a4 Ng1 Rb5 Rb3 Nb2 Rb4 Bd3 Rh2 Rc5 Rb5 Rc3+ Kb4 a3 Rh1 Nd1 Ka4 Rb3 Rh2 Na5 b7 Rh8 Bb1 a2 Rh1 a1Q+ Ba2 Qb2 Rh2 Ka7 b8N+ Nb7 Qde6 Rhg8 Nbd7 Ka6 Nf6 Rg3 Qd7 R8g5 h4 Rf3 Rh3 Qc2 Rg3 Qb2 Rg4 Rh3 Rc4 Qd4 Rcb4 Qf4 Rc4 Qh2 Rg4 Rh5 Rg7 Rg5 Rh7 Nb2+
3BqK1k/4B1r1/1P1BQ2P/b1rQq3/pn1N4/1B3Rbn/3BR2Q/1n1B2Nb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Kf3 g5 Ke4 a5 b4 c4 d4 c3 h4 g4 e6 f5+ Ke5 a4 e4 g3 b6 g2 b5 c2 h6 f4 h5 f3 d6 f2 e7 Kf7 d7 Na6 Kd6 Nb8 b7 Nc6 b8B Bb7 e5 Qb6 d8B Bg7 e8B+ Kf8 d5 Qe3 e6 Qf3 h7 Ra5 b6 Nge7 Bd2 c1B Rh3 Qc3 Na3 Qb3 Ra2 Rc5 Bc4 f1Q Nb5 Bc8 Nd4 Qc3 Bb3 Qf7 Rf3 Rg8 h8Q Bb7 Kd7 Ba8 d6 Be5 h6 Bf4 Qe5 Rg7 Qee2 Nd5+ e7+ Kg8 Qf2 Qf6 Bh5 Bg3 Ke8 Qe3 d7 Kh8 Bd6 Qfe5 Kf8 Ncb4 e8Q Nc3 Qe6 Nb1 B8e7 Bb2 d8B Bc3 Qdf1 Qe1 Qfc4 Bb7 Qcd5 Ba8 Nge2 g1N Qh2 Nh3 Ng1 Bc6 Rf2 Ba8 Bhd1 Q1e2 Ra3 Qb5 Re2 Qd7 Qc4 Bh1 Qcd5 Nc6 Bc4 Ba5 Rf3 Nb4 Bcb3 Qe8+
rNn3R1/R1N1b1Q1/1p1bKNQQ/B4r2/rPN1P3/8/4k1q1/NB1q1Nnb w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 h3 a5 b6 a6 Rh5 gxh3 Rh6 h4 Rh8 h5 Qd6 Ra2 Qc6 Ra1 Qb7 axb7 Ke7 Bh3 Kd8 Bf1 Ke8 Kf2 Ke7 Kf3 g5 Ke4 c5 h4 a5 d4 f6 e6 Kd6 Kf5 c4 e4 a4 h6 c3 h5 g4 h7 a3 h6 g3 Bd2 c2 Qg4 c1B Nf3 g2 Ne1 g1Q Bd3 a2 Ba5 Bf4 Nc2 Qh2 Rg1 Bc1 Nd2 Qg3 Qg6 Nc6 b8N Na7 Nf1 Nc6 b3 Ba6 e7 Bf4 Rg2 Ne5 e8N+ Ke7 Rg1 Nf3 Rg2 Ng1 d6+ Kd8 d7 Ke7 d8N Bd6 d5 Bb5 Rh2 Qg2 Nf7 Bc4 b4 Ba6 Rc1 a1R Ne5 Ra4 Na1 Bc4 Bc2 Be2 Bb1 Bd1 Nc4 Bf3 Na6 Kd7 Nac7 Bde7 d6 Kc6 Ke6 f5 d7 f4 Rh4 Bd6 Rc2 Ne7 Rg4 Nc8 Nf6 Bfe7 Rf2 Re8 h8Q Rf8 h7 Rf7 Qhg7 Rf8 Ncd5 Kb5 h8Q Rf7 d8N Rf8 Ne8 Rf5 Qhf8 Bd1 Q7h6 f3 Nc6 Be2 Qhg7 Bd1 Rc2 f2 Ndf6 Be2 Nb8 Bf3 Ng3 f1Q Rg5 Qe1 Nf1 Qd1 Rd2 Bc7 Rd7 Bcd6 Qfh8 Qg4 Rc7 Bh1 Qhh6 Qg2 Ra7 Be5 Qg8 Qe1 Q6f7 Qh2 Nb2 Qg2 Rg7 Qed2 Qfg6 Qd1 Q8f7 B5d6 Rg8 Qf2 Qfg7 Qg2 Nd3 Kc4 Ne5+ Kc3 Nc4 Kd4 Nc7 Kc3 Nc2 Kd3 Na1+ Ke2
Qr2n2r/R2B1b1P/3q2BR/1nBqk3/1KBb1p2/1N2P1Q1/1N1q1R2/B1n3B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 h4 d5 b4 a5 h6 g5 c6 f5 c7 f4 h5 g4 b6 a4 b7 g3 b5 a3 b6 a2 Nd2 g2 Nh3 g1N Nf2 Qd7 Qe1 Bd6 Ba3 Ne7 Nd3 Nf5 Qg3 Be7 h7 Rg8 h8B Ra5 h6 Qd8 h7 Qd7 Nb3 Na6 b8Q Nc5 b7 Qb5 Rh6+ Bf6 Bb4 Bd7 c8B Nd4 Ba3 Ra6 Qa8 Rd6 b8B Rb6 Ba7 Na6 Be7 Kf5 e6 Be8 Bd7 Bf7 Ba3 Ke4 e7 Rbb8 Bg7 Nc7 e8B Be6 Bf7 Ne8 Bb4 Rh8 Bg6+ Bf5 Ba3 Qb7 Baf8 Nb5+ Kb4 d4 c4 Qc6 c5 Kd5 Bb6 Be6 Bd6 Bf7 Ba7 Qb7 c6 Be5 c7 Bf6 Rc1 a1Q c8R Qb2 R8c2 Qc6 Ra1 Qb7 Nf2 d3 Nd1 d2 Bd4 Qa2 B6c5 Qa6 Be3 Qd6 Ra7 Ba1 Bf2 Be5 e3 Ne2 Bg1 Nc1 Nf2 d1Q Nd3 Bb2 Rf2 Qd2+ Ka4 Ba3 Ba1 Bb2 Be2 Bc3 Nb2 Ke5 Bed3 Bd4 Bc4 Qd3 Ka5 Qbd5 Kb4 Qd2+
R2B2Rr/N1r2RQP/1qbNQRP1/N4bn1/3k2qR/1n3p1q/1b4B1/2R3K1 w - - 0 1 illegal: No proof kernel
2Nr4/1B3PB1/R1Bn4/1QrQN2q/Q1R1nB2/2P3bb/1Bpnr1qk/2BK4 w - - 0 1 illegal: No possible last move
rbBRnq1B/1n3P1q/1q2BP2/k1N5/6Kp/rb1R4/1N3b1B/NBR1R1Q1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 a5 b4 h5 d4 e5 g4 c5 g6 Kc7 g7 Kb6 f6 c4 f7 c3 g5 h4 d6 c2 g6 a4 d5 a3 d7 a2 d6 e4+ Kg4 e3 f4 e2 f5 e1B Nc3 Rh7 Bh3 Ra6 Bb2 c1Q Nge2 Bg3 Nd4 Bf2 Na4+ Kb7 b6 Bg1 b5 Ra7 Nb3 Qc6 Rc1 Qc3 Na1 Bh2 Re1 Ne7 g8B Qa3 Bh8 Be5 Nb2 Ra8 Qd4 Na6 Qg1 Qc7 d8R Nd5 d7 Rh5 Bh7 Nc5 g7 Qb8 g8B Nc7 f6 Ne8 Bb1 Bfd6 Bgh7 Bd4 Bhf5 Bf2 Be6 Re5 Bb3 Re3 Bc4 Qc7 Be6 Qd3 Red1 Qh7 Re1 Kb8 b7 Ka7 b8N Kb6 Na6 Ka5 b6 Ra3 b7 Qb6 b8B Nb7 Nc5 Be5 Nc2 a1Q Bc7 Qa2 Na1 Qd5 Bb8 Qdd6 Bc7 Qf8 Bd6 Bed4 Bh2 Bg3 Re3 Bb8 Rd3 Ned6 Re8 Bf2 d8R Bd7 Re7 Ba4 Bc8 Bb3 Ree1 Ra4+ Kf3 Ra3 Bhe6 Ne8 Kg4 Kb4 Kh3 Kb5 Kg4 Ka5
k1nBqr1B/2b1P2N/3Bn1Q1/n5NQ/1RK1bBq1/2QRB3/Pbp5/5r1B w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 d4 Kd7 Kd2 f5 Kc3 b5 e4 g5 h4 c5 e6+ Kc7 e5 Kb7 e7 g4 e8Q b4+ Kc4 f4 e6 b3 h6 b2 h7 f3 a6+ Ka7 e7 g3 h5 f2 d6 g2 d5 Be6 d7 Qa5 d8B Bd7 h6 Bf5 d6 Nf6 d7 Nc6 Be3 Nd5 Rh3 Be4 Qdh5 Nd4 Nc3 b1Q Nf3 g1B Qeg6 Bh2 Bg2 f1N Ng5 Bg7 Bc7 Qb8 d8B Rf8 h8B Ne6 Rb1 Qa4+ Rb4 Qd7 h7 Nb6+ Kb3 Nc8 Bh1 Rf5 Nd5 Bb2 Bd6 Rf7 Bef4 Ne3 Bd4 Nc4 h8B Rf5 Rd3 Na5+ Kc2 Qbb5 Nf6 Rb8 Bde3 Ka8 a7 c4 Kd2 c3+ Ke2 c2 Nfh7 Qa4 Kd2 Ba3 Kc3 Qe8 Bfe5 Rf1 B5f4 Nc7 Kd4 Qad7 Kc3 Qg4 Kd4 Ne6+ Kc3 Nb3 Kc4 Bb2 Bdc5 Rb5 Bg3 Kb7 Bgc7 Bhe5 Bf4 Bd6 B7b6 Bc7 Bcd6 Rf5 Bg1+ Kc6 Bge3 Rf8 a8Q+ Kd7 Qa3 Kc6 Ra4 Kb7 Qb4+ Bb6 Qe1 Bc7 Rb4+ Ka8 Qc3 Na5#
4Q1q1/b2P1p2/B3Nn1N/B1N1q2Q/NbnR1r1n/PQ2R1Kb/r2N4/k4N2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 e4 g5 d4 c5 h4 b5 h6 c4 e6 Kd6 e7 g4 e8Q b4 a3 b3 h5 b2 h7 c3 e5+ Kc7 d6+ Kb7 h6 c2 a6+ Kb6 d5 Kc5 e6 Nd7 e7 Ngf6 a7 Bb7 Nd2 Kd4 Rh3 b1Q Kg3 Kc3 Ba6 Qb5 Ngf3 Qf1 Nh2 Qe2 Nhf1 Rb8 a8N Qa5 Nb6 Qab5 Na4+ Kd4 Rb1 Kd3 Rb4 Ne5 d7 Nc4 d8N Bc8 d6 Qg5 Ne6 Qg8 Bb2 c1B Bc3 Qe3+ Qf3 Kc2 Nec5 Be6 d7 Qeg5 Qd5 Rb6 Qf3 Rd6 Qb7 Rd4 Qf3 Rf4 Qe3 Na5 Rd4 Nc4 Ba5 Qe5 Qf3 Bb2 Qb3+ Kc1 Qd8 Bc3 e8N Bb4 Ng7 Bd6 Qe8 Bb8 Nf5 Ba7 Kh2 g3+ Kg2 Rh4 Kf3 g2 Kf2 g1N Re3 Qf8 Kg2 Rg8+ Kf2 Rgg4 h8Q Qg8 h7 Nf3 Nh6 Rg3 Nb6 Rg5 Nba4 Bg4 Kg2 Rf5 Kf2 Rf4 Kg3 Be6+ Qg7 Rh5 h8N Rh2 Qg4 Nh4 Ng6 Re2 Qg5 Bh3 Nf8 Ref2 Nfe6 Rh2 Nde4 Rb2 Qg6 Kb1 Ned2+ Ka1 Qg4 Ra2 Qg5 Bg4 Qh5 Bh3+
QbN5/rR1pR1rn/1BQ3b1/2b4P/B4kn1/B1q2PN1/1BNr1B1q/6KB w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 c4 Kf6 b4 Ke5 f6 g5 h6 a5 b6 e6 b5 g4 f7 a4 c6 a3 b7 a2 h5 g3 b6 g2 h7 Qe8 c7 Ra4 c5 Ra8 c6 Qe7 Qc2 Ra3 Bb2+ Rc3 Ne2 g1Q Ng3 Qh4 Na3 Qd4 Rb1 Qg2 Bb5 a1B Ba4 Bc5 f8B Qh2 Kf1 Rd3 Qc4 Kf4 Nc2 e5 Ba3 Qh3+ Kg1 e4 Be7 e3 Bh4 e2 Qb5 Na6 b8Q Nb4 b7 Nf6 Qa8 Nbd5 b8B Ng4 Ba7 Ba6 c8B Ndf6 c7 Qc3 Bb6 Rg8 h8B Rd2 Qbc6 Bd3 Bb7 Nh7 c8N Bg6 Bd4 Rg7 Rb3 Qd3 Bdb2 Qd4 Re3 Qd6 Re7 e1R+ Nf1 Qe3 Rh3 Qed4 Rb3 Qc3 Rb4+ Re4 Ng3 Qb8 Qb5 Red4 Bh1 Qe5 f3 Qe2 Qbc6 Qh2+ Kf1 Re4 Bd8 Rc4 Rb7 Rb4 Ba5 Rb5 Bb6 Ra5 Ne4 Ra6 Bf2 Ra7 Ng3 Qe3 Bc1 Be5 Bcb2 Qb3 Bg2 Qc3 Bh1 Qh3+ Kg1 Bb8 Rc7 Qh4 Rb7 Qh2+
4b2N/1RP5/RBRNN1Qq/B4nqN/bB1b1P1r/1N4pK/1qB1k2n/2r5 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 Kf2 Kf6 Kg2 e5 c4 g5 h4 d5 b4 a5 b6 g4 b5 a4 c6 d4 h6 e4 h7 a3 b7 e3 c7 a2 h5 e2 c5 e1Q h6 d3 c6 d2 b6 Bb4 Ba3 Qd3 Qc2 d1B Ne2 Bc3 Nd2 Ra7 Nb3 Qb5 Ng3 Qe3 Bd3 Be1 Bb4 Nd7 b8B Ne7 b7 Rg8 h8N Qeb6 h7 Ne5 Rh6+ Rg6 Kh2 Bd7 c8N Bc3 c7 Be8 Nd6 Bd4 Be4 Ra5 Ba7 Nf3+ Kg2 Q6a6 b8R Nh2 Bb6 Ra3 Rc1 a1Q Rb7 Qb2 B4a5 Qd5 Nhf7 Ra1 h8N Qdb5 Nd8 Rb1 Ne6 Ra1 Qd2 Qd5 Rc6 Rc1 Nf1 Qe5 Bc2 Qc5 Qd3 g3 Nfd2 Qcb5 Kh3 Qe5 Nbc5 Qd5 Ng7 Qe5 Nce6 Qc5 Bb1 Ba4 Nb3 Qd5 Bc2 Qe5 Rh4 Rg4 Rh6+ Bg6 Nd8 Qe6 Ba7 Qb5 Ra6 Nd5 B7b6 Ne3 Rh5 Qbd5 Rg5 Bge8 Nh5+ Ke7 Qe4 Kd7 Qd3 Qh6 Ne6 Kc6 Qe4 Be5 f6 Bc3 f7 Bd4 Nc4 Kb5 f8B Qe5 Bfc5 Qeg7 Rd5 Qgg5 Qg6 Nf5 Rd6 Rb1 Ne5 Rc1 Nef7 Kc4 Rc6 Nd6 Bd1 Nf5 Bcb4+ Kd3 Bc2+ Ke2 Nd6 Rh4+
2Q1Nb1B/1P1rpB2/6qB/Kn1RB1QR/3qPBRn/1rnr4/k4b2/N2B4 w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 g5 g4 d4 f4 d3 h5 Qd7 fxg5 Qd4 cxd3 Qd8 d4 Bf5 d5 Bg6 hxg6 Qd6 Nf3 Qd7 Ng1 Qd8 d4 Kd7 Kd2 Kd6 Kc3 c5 e4 a5 b4 f5 b6 h5 b5 f4 g7 c4 g6 h4 b7 h3 g5 f3 b6 h2 Ne2 a4 Kb4 f2 Nf4 a3 Ne6 a2 Qc2 c3 Nc7 Ra3 Ne8+ Kd7 d6 Kc6 d7 Qc7 d8B Nf6 g8B Qg3 d5+ Kd7 g7 Qg4 g6 Qg5 d6 Kc6 d7 Qg4 Be2 f1R Bh6 Rd1 Nd2 Rb3+ Ka5 Kc5 Bf7 Na6 g8R Nc7 b8B Nfd5 g7 Nb5 b7 Qg6 Bdc7 Rh7 Qc1 c2 d8B Ndc3 Bcf4 Kd4 Rb1 Kc5 Rb2 a1Q+ Ra2 Rh8 Bdc7 Kd4 Bce5+ Kc5 Nf1 Rd7 Bd1 Qb2 Qd2 c1B Ne3 Qa1 Qc2 Bd2 Qc1 Be1 Nc2 Bf2 Bf6 Qb2 Na1 Qd2 Rc2 Qd4 Rd2 Rh7 Bbe5 Rh8 Rg1 h1N Rg5 Ng3 Rh5 Nf5 Qc2 Nh4 Qc1 Qd6 Rd5+ Kc4 Qe3 Rh7 Qg3 Qc5 Qg5 Qe3 Rh8 Qd4 g8Q Nf3 Rh4 Rg7 Rg4 Nh4 Ka6 Kb4 Rh7 Ka3 Ka5 Ka2 Qh8 Qh5 Qg8 Rg6 Bh8 Rc6 B6g7 Qg6 Rh5 Rf6 Bh6 Rfd6 Nc7 Bg7 Qc8 Bf8 Ne8 Qe3 Rc5 Rd3 Rd5 Qd4
k1N3r1/P3qn2/2b2N2/1NB2N2/pn1q1bNK/1Q2PBRr/R1B1R3/1r3n1B w - - 0 1 illegal: No possible last move
2r1b1BN/p1B1B3/3n3K/r5N1/PBrq1Pb1/Q1qRN2B/R6R/N2n2kn w - - 0 1 legal: proof: g4 c5 h4 g5 b4 d5 bxc5 f5 gxf5 g4 e4 Bh6 exd5 Bg5 hxg5 Kf8 Bb5 Kf7 Bf1 Ke8 Ke2 Kd7 Ke3 h5 Kf4 b5 c4 h4 a4 b4 d4 g3 d6 Kc6 d7 e6 d5+ Kc7 c6 Kd6 c7 Kc5 f6 h3 f7 g2 f8B+ Ne7 g6 e5+ Kg5 e4 f4 b3 g7 h2 g8B b2 d6 e3 Qf3 Kd4 c5 e2 c6 e1N Nd2 b1B Nh3 Nf5+ Be7 Nc2 Ba3 Na6 Ra2 Ng3 Bb4 g1Q Qa3 Nc5 Nb3+ Ke3 Bg2 Qd1 Na1+ Qd3 Rd1 h1R Bf1 Ba6 c8N Bb5 c7 Nb7 Nb6 Rg1 c8R Nh1+ Bg2 Rh6 Rc7 Rc8 Nc4+ Ke2 Rc6 Re6 Kh5 Re5+ Ng5 Kf2 Bh3 Qg3 Rd5 Rc1 Kh6 Kg1 Rcc5 Qb6 d8N Be8 Ndf7 Ne3 Nh8 Bf5 Rd1+ Qe1 Rd3 Nd1 Ne3 Bg4 Rcc2 Qd4 d7 Nd6 d8B Ra5 Rh2 R1c4 Bc7 Qec3
1Bbr1k2/6NB/4B3/1BbBb3/bPQ1R1KQ/3p1B2/2nnbQP1/NrR1q3 w - - 0 1 illegal: No proof kernel
Q1r1R2K/1b4N1/B2kBQ1p/5P2/b1qn1b1b/2r3BP/1BRB2Q1/b3nN1B w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 f6 a5 Kd2 d5 Ke3 Kd7 Kf4 g5+ Kf5 g4 e4 d4 f4 a4 c4 a3 h3 d3 c6+ Kc7+ e6 d2 b6+ Kd6 b7 h6 Kg6 g3 c5+ Kc7 e5 g2 f7 a2 f5 Rh7 e7 Qd5 e8B Qf3 e6 Qf2 e7 Qf4 Qc2 d1B Bb2 Nd7 Ne2 g1B Nd4 Bf3 Rh2 Ra3 Nd2 Ra4 Re1 a1B Ne6+ Kb8 c7+ Ka7 b8B+ Kb7 c6+ Kb6 Ba6 Qe3 Nf1 Rh8 Ng7 Nc5 Qe2 Bd7 c8Q Qd3 Qb7+ Ka5 c7 Qc4 c8B Be3 Qa8 Kb6 Bg3 Bf4 Bcb7 Bb5 Bd7 Kc7 e8Q Ra3 Q8e6 Be7 f8B Bh4 Qf6 Nd3 Bb4 Ba4 Qe4 Rb3 Rc2 Ra3 Re3 Ne1 Bd2 Rc3 Qd5 Ne7+ Kf7 Ng6 Bbc6 Rb8 Re8 Rc8 Kg8 Nf8 Kh8 Ne6 Qe4 Nd4 Be6 Kd6 Qe2 Bh5 Bh1 Bf3 Qg2 Bb7
Q1RN2bb/b2R4/QrQ2Pkb/2QPK2b/3Bp1Br/n3N1Q1/3N1Q2/1q4n1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 a5 f4 h5 d4 c5 g4 a4 b4 c4 g6+ Kg7 b6 h4 b5 a3 g5 h3 b7 h2 d6 a2 d5 c3 b6 c2 d7 Qe7 d8N Rh5 f6+ Kh8 f7 Kg7 f5 Ra6 f6+ Kh8 g7+ Kh7 Qf3 Qa3 Nc3 Nd7 b8Q Nh6 b7 Bd6 f8Q Bc5 Qa8 Qb3 b8Q Rb6 Qc6 Ng4 Bh3 Ne3 Qba8 Qb1 Bg4 Kg6 Bb2 Rh4 Qa6 Nc4 Qf2 Na3 Nf3 Be3 Rc1 h1B Nd1 Bd2 Kd3 e4+ Kd4 Ne5 Ne3 Be6 Qfc5 Bg8 Bc3 Bg2 Bb2 Bb4 Nd2 Bf3 Bc3 Nd3 Bb2 Nf4 Ke5 Ne2 Bc3 Ng1 Bd4 Kh7 g6+ Kh6 Qcc4 Bf8 Q4c5 Bd1 Bh3 Bh5 Bg4 Be6 g8Q Bg7 Qge8 Bh8 g7 Bg8 Qca8 Kg5 Qeb5 Kg6 Qbc6 Qb4 Rab1 a1B Rb2 Qb3 Ra2 Qb1 Rb2 Rb8 Rb7 Bc3 Rd7 Bb4 Qca5 Bc5 Qc3 Ba7 Qca5 Bf7 Qac5 Rb6 g8Q+ Kh6 Rd1 c1B Qg5+ Kh7 Qgf4 Kg6 Q4g3 Bb2 Rc1 Bg8 Rc2 Bc1 Rc4 Rb3 Rb4 Rb2 Rb8 Rb6 Rc8 Qa2 Nec4 Rb7 Nf3 Bh6 Ne3 Rb6 Nd2 Qb1
RNrn4/1r2QrPK/r2Q4/1p6/k2NB1rN/3QqbQ1/3bQP1B/2Q3Rn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 c5 Ke4 b5 a4 e5 g4 h5 d4 c4 g6 h4 f6 c3 Kf5 h3 a6 c2 f7 e4 d6 Kc6+ d7 e3 g5 e2 a5 e1R a7 h2 d5+ Kc5 d6 Kb4 a6 Qa5 g7 Rh6 g6 Rh4 Nf3 Qd8 Bg2 Qe8 Bf4 c1R Nd4 Nc6 Qe2 Nd8 Nd2 Rc4 N2f3 Rc2 Rg1 h1R Bh2 Nf6 g8Q Rh3 Nh4 Nb7 Be4 Be7 f8N Rb8 a8Q Ra2 a7 Nd8 Qc6 Rg3 a8Q Ra6 Qc1 Nh5 Qac6 Bg5 g7 Qe5+ Kg6 Bb7 Kh7 Bd2 Qgd5 Rc3 Qc7 Ng3 Qe6 Ba8 Qe7 Rb7 Qb8 Rc8 Ra3 Nf7 d8Q Qc5 Qdc7 Nd8 Nd7 Qg5 Q7c2 Qe3 Qcd3 Rd1 Qbc7 Re1 Nb8 Rd1 Rf1 Rg1 Re1 Rg2 Rg1 Nh1 Ra1 Rg4 Ra2 Ra3 d7+ Ka4 Qg3 Re1 Qa1 Rec1 Qab1 R1c6 Qc1 Rf6 Ra1 Rf7 Qed6 Nc6 d8Q Ra2 Q8e7 Nd8 Rb1 Rac2 Rb2 R2c6 Rc2 Ra6 Rc7 Rbb6 Ra7 Bd5 Ra8 Rb7 Bg6 Bg2 Be4 Bf3
3r4/2knnPNn/2B2P1R/4bB1b/3R1N1N/2n1BKQ1/1B2B1pq/B1Q3rn w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 g5 c4 e5 h4 a5 f4 d5 b4 Kd7 f6 a4 f5 a3 h6 g4 f7 e4 c6+ Kd6 h7 e3 c5+ Kc7 h5 a2 h6 d4 Nd2 g3 Nh3 d3+ Kf3 e2 Nf4 Nd7 b6+ Kb8 b7 g2 c7+ Ka7 b8N Kb7 b5 Ra6 c6+ Ka8 b6 Bb4 b7+ Ka7 Rh5 Ra5 Na6 Kb6 Nc5 Nf8 Nce6 Bd6 Ng7 Be5 b8Q+ Bb7 c8B Qc7 Bb2 Ne7 Qc1 Rg8 h8B Nh7 Be6 Rd8 Bd5 Rb5 Rb1 a1N Rh4 Qd6 c7 Nb3 c8B Nc5 Bc6 Nd7 Ba1 Qc7 Rb4 Qd6 Rd4 e1N+ Kg3 Rc5 Nf3 d2 Be2 d1N Rh1 Rc4 Nh4 Nd3 Kf3 N3f2 Rh3 Nh1 Bb2 Nhf8 h7 Nc3 Ba1 Qh6 Qd6 Ba8 Qg6 Kc7 Qg3 Qd6 Qce1 Qe6 Rd1 Nb5 Ne8+ Kb6 Bd5 Bb2 Nhg6 Nc5 Bd4 Rc1 h8B Nh7 Rh6 Qf6 Bd7 Qh4 Be3 Qh2 Nh4+ Bc6 Bf6 Ba8 Ng7 Kc7 Be6 Nd7 Bfd4 Rb1 f6 Bb7 Rd3 Bc3 Qd2 Rg1 Qc1 Ba6 Bc6 Bb2 Bc5 Be5 Rd4 Nc3 Ba3 Bd3 B3b2 Bg6 Bf5 Bh5+
2Bb2B1/4p1r1/Qb1R2q1/1n1B1bk1/B1bNP2r/n2N2b1/1KRR2RP/B6N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 d4 c5 dxc5 g4 a4 Qb6 axb5 Qb7 Nc3 Qd5 Nb1 Qg5 fxg5 Bh6 Ra5 Bg7 Ra1 Bf8 Kd2 f5 Kc3 Kf7 e4 a5 b4 d5 b6 a4 g6+ Kf6 g7 d4+ Kb2 f4 c4 g3 h6 d3 h7 d2 b5 f3 b7 f2 b6 g2 c6 Bg4 c5 Na6 b8R Ra7 c7 Nh6 g8B Rb7 c8B Nb4 c6 Bh3 c7 Na2 Ne2 g1B Nf4 Nc3 Bce6 Nf5 c8B Bg4 Ra2 Bg7 Nd3 Nd4 Qe2 d1Q Nd2 Kg5 Bd5 Nb1 Bh3 Be5 Nf1+ Bf4 Ng3 f1B Be3 Rd7 b7 Nb5 Bd4 Rd8 Bg7 Bf2 Rg1 N1a3 Rg2 Bc7 Nh1 Bfb6 Ra8 Qe1 b8N Qg3 Nc6 Bf5 Ra6 Rf8 Be5 Bd8 Nd4 Rf7 Bd7 Rg7 B7c6 Bg6 Bc8 Bf5 B6d7 Ba5 Rd6 Bab6 Qe1 Qg4 Qa5 Qg3 Qa6 Qg4 Nc1 Bc4 Rd2 Qh5 Nd3 Qe8 Ka1 Qg6 Rac2 Nb1 Kb2 a3+ Kc1 a2 Kb2 N1a3 Be8 Nc7 Ba4 Ncb5 Bge6 Rhg8 h8R Rh7 Bf7 Rgg7 Bg8 Rh4 Rh7 Rf4 Rh3 Rg4 Rg3 a1B+ Kc1 Bc3 Rgg2 Bca5 Kb2 Bbc7 Ne2 Bab6 Bc3 Bb8 Nd4 Bb8c7 Kc1 Bb8 Ba1 Bb8c7 Kb2 Bb8 Re6 Bg3 Rd6 Rh4
b1b2b2/q2P2Rp/NRP2rrk/B3bnN1/2B1bK1B/4B2N/N2Q3R/N6n w - - 0 1 illegal: No proof kernel
nN6/nr1p3Q/4n2B/b1Nk2PB/2q1rn1K/1NRbQN1P/R1n1N3/1N5Q w - - 0 1 illegal: No proof kernel
B1B1R1nB/Pr3R1b/2R2b2/1PB1N1n1/1p2nK1N/4B2R/n1r1Q3/1kNn3q w - - 0 1 illegal: No proof kernel
bnN1k3/4bn2/B2r1BB1/K3BRNR/6Q1/2r2NPP/b1p1q1nR/1B3nR1 w - - 0 1 illegal: No proof kernel
r5nk/QNn1Q2r/bq2BK2/4B2B/1Pr1b3/P1N3pR/Qb1rR3/QQ4Q1 w - - 0 1 illegal: No proof kernel
B2Q4/rN1n2n1/R2bq3/BB1B3r/P3rB1P/NK1pr2Q/1Q5R/Bb1k1b2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 h4 Ke5 f4+ Ke4 h6 g5 a6 e5 f6 d5 c6 b5 h7 g4 c7 g3 f7 g2 f5 b4+ Kb3 d4 c4 Bc5 f8B Ba7 f6 Bb6 c5 Ba7 c6 Ne7 f7 Qe8 Na3 Bc5 a7 Rg8 h8Q Bh3 c8B Rg5 c7 Nd7 Ne2 Kf3 Bg7 g1R f8B e4 Bf4 e3 Rh2 Bd6 Nc1+ e2 Nd3 R1g4 Nc5 Rh5 Nb7 Nf5 Qd2 e1R Qb2 Qe7 Bb5 d3 Bc3 Re6 Bfg7 Bf1 Qd8 Re3 Bgd4 Ng7 Bb6 Rg6 Ba5 Rge6 Bd4 R6e4 Bf6 Nb6 Be6 Nd7 Bd5 Qe6 c8Q Rb8 Nc5 Rb7 a8B Ra7 Nb7 Be2 Rc1 Bf1 Rc6 Re2 Ra6 Re3 Ka4 b3+ Qd4 b2 Kb3 b1B Qb4 Bh3 Ba1 Bg2 Qbc3 Ke2 Qcf6 Kd1 Qb2 Nf6 Qcd7 Bf1 Q7c8 Qf7 Qh3 Qe8 Nc2 Nd7 a4 Qf7 Na3 Qe6
1n1N3R/1r2kBr1/1N3Nq1/3Q2B1/P3nnP1/2RNb1r1/1Nn1p1b1/N2B1QK1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 e5 a4 b5 f4 c5 Kf2 h5 g4 h4 f6 h3 a6 b4 d6 h2 g6 e4 g7 c4 f5 c3 f7+ Kd7 f6 c2 d5 b3 a7 b2 Nc3 b1N Nf3 Qe7 Nd4 Ba6 Nb3 Bc4 Be2 Bb5 Ra3 Bc6 Na1 Rh7 Qf1 Rh6 Bg5 c1N Nd1 Bb5 Rc3 Na3 Nb2 Bc6 Bd1 Kd8 d7 Qe8 Kg2 Bd6 f8N e3 f7+ Nf6 g8B e2 Ng6 Bf4 f8N Nc2 Bf7 Rh7 Ne5 Ke7 d8N Be3 Nfd7 Rg7 Ned3 Qg8 N7c5 Qh7 Ne4 Qg6 d6+ Kf8 Rg1 h1R d7 Rh3 Rh1 Ke7 Rh2 Rf3 Rh8 Rg3+ Kh2 Na6 Kh1 Rb8 a8N Rb7 Nb6 Nb8 Bf4 Nd5 Nf6 Nb3 Bg5 Nc5 Kh2 Bc1 Kh1 Nf4+ Kh2 Bg2 Kg1 Kd6 Nc6 Ne4 d8Q+ Nd7 Qa8 Nb8 Nd8 Ke7 Qa5 Bd2 Qd5 Be3+
1B1bNKbN/6B1/1r2B1Rb/R2P4/nkrpQ1PN/6RN/1r2B1r1/q3N1n1 w - - 0 1 illegal: No proof kernel
1Rb3Nn/2bB2N1/1b1r2r1/2pNP1Q1/1NnQ4/4P1RN/1r2NB1k/1qK1Q1r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d6 Kd7 b4 Ke6 h4 Kf5 d4 Kg4 Kd2 Kg3 h6 c5 h5 g5 b6 a5 h7 f5 b7 a4 b5 f4 h6 g4 b6 f3 d7 f2 Nc3 Nc6 b8N Ra7 b7 Qc7 d8N Ra8 Na6 Nce7 b8N Nc6 Ra3 Ra7 Bh3 f1R Ne6 Qf7 Nac7 Rf3 Ng7 Ra5 Nba6 Qh5 d5 Rf4 d6 Rf6 d7 Bd6 d8Q Nge7 Qf1 Qe8 N7d5 Ng6 Kc2 Re6 Qg5 Bc7 Qd1 Rf8 h8Q Rd6 h7 Rff6 Qd4 Rb5 Be3 Na5 Rh2 Rbb6 Kc1 Nc4 Qf8 Rb8 h8N Qb5 Nf7 Nh8 Nh6 Rg6 Qf1 Qb6 Rb3 a3 Ng8 a2 Rf2 a1B Rf3+ Kh2 Qe1 g3 Bd7 g2 Bf2 Qb5 Nh3 g1R e3 Qb7 Ne2 Bc3 Rg3 B3a5 Ndf4 Qe4 Nd5 Rbb6 Rd3 Rb2 Rb3 Qf5 Rb8 Bab6 Nab4 Qb1#
NK3b1b/R2b1rB1/B2nn2P/2B1nR2/n1B3Nk/2P3R1/N1qpRQ2/3B3r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 d5 Kd4 a5 e4 f5 h4 g5 b4 f4 c6 a4 Kc5 a3 c7 d4 Kb6 g4 h6 d3 h5 d2 h7 a2 h6 f3 e6 Kf6 e7 Kg5 e8B f2 e5 g3 e6 g2 e7 Nf6 Nc3 Ra7 Rh3 Qd3 Ba3 Rg8 h8B Qd8 Bc4 f1N Qe2 Ne4 Qf2 Ra5 Rg3+ Kh4 Bh5 Qd7 e8N Nh2 Bd1 Ng5 Nh3 g1N Bg7 Bb7 c8B N5f3 Nc7 Qd5 Na8 Qd3 Kc7 Ng4 b6 Ne3 b5 Nf5 Bc5 Bc6 b7 Nd7 b8R Nde5 b6 Ng5 B8a6 Bd7 b7 Ne2 Re8 Nd6 b8R Qg6 Rb4 Ne6+ Kb8 Rh8 Rb7 Rh7 Ra7 Qd3 Rb1 a1B Na2 Nc3 Rb5 Na4 Re7 Bd4 c3 Qe4 Qg2 Qc2 Nf2 Nf4 Ng4 Ne6 Bh8 Rg7 Qf2 Rf7 Bg7 Nb2 Nc1 Ra1 Na2 Na4 Bde2 Rh1 Bd1 Ng5 Ra5 Nd3 Re2 Ne6 Ba3 Bf6 Rf5 Ne5 Bc5 B8e7 Bf8 Bh8 Bg7 Bf8
3RR2n/Q2n1NNr/1NkB1P2/2BpR3/3b2b1/2R2BRN/Knq1nP2/r3r3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kc3 Kd7 Kb3 g5 c4 a5 h4 e5 c6+ Kd6 f6 a4+ Ka2 e4 b4 g4 c5+ Kc7 h6 a3 h7 e3 h5 e2 h6 e1R Qd4 g3 Nc3 g2 Be2 Rf1 Nh3 g1N Bf3 Be7 Ne2 Qd6 b6+ Kd8 c7+ Kd7 c6+ Ke6 b5 Bd7 c8N Qh2 b7 Be8 b6 Re1 c7 Kd7 Be3 Bd8 Ng3 Rf1 Re1 Ne7 Nh5 Kc6 Ng7 Ne2 Rg1 Bh5 Rg3 Nd7 b8B Ng6 b7 Bg4 Nb6 Be7 Qa1 Bc5 Bd4 Qg1 Be3 Bd4 c8R+ Kb5 Rd8 Kc6 Bd6 Qh2 b8R Ra5 Rd1 Re1 Rd3 Ra4 Re8 Qg2 Re5 Qh2 Kb3 a2 Rd8 Ra8 Rg2 Qf4 Rg3 Qe4 Rde8 Bc5 Qd4 a1N+ Kb2 Nc2 Rc3 Na3 Ka2 Rf8 h8N Rf7 h7 Nc4+ Na4 Re7 Nf7 Nb2 h8R Qc2 Rhg8 Ra7 Rd8 Nh8 Rge8 Rc7 Nb6 Rb7 Qc4 Ra7+ Qa6 Ra8 Rd3 Bd4 Qa7 Bc3 Bec5 Bd4 Nfg5 Rf7 Rc3 Re7 Nh5 Rg7 Nf7 Rh7 Ng7 Qd1 Ka3 Na4 Qb8 Ra5 Qa7 Nb2+ Kb4 Qd3 Kb3 Qg6 Rf8 Raa1 Rfe8 Rac1 Ka3 Qc2 Ka2 Ra1#
2R1Q1bR/3B4/2N1P1B1/bPBN3p/r1r5/B2n1n1Q/1n1NbBK1/2Bk1qn1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 f5 e4 c5 b4 f4 g6 h6 d6 Ke6 g7 a4 b6 a3 b7 a2 b5 f3 g5 c4 g6 c3 d7 c2 d5+ Ke7 d6+ Ke6 Ne2 Ra4 Qd3 Qe7 d8B Na6 b8B Nc5 d7 Nf6 g8N Nh7 g7 Ng5 Bb6 Nh3+ Kg3 f2 d8B Rc4 Nd2 Ng1 Nf6 Na4 Nd5 Nb2 Bc5 h5 Bbd6 Rh7 g8B+ Rf7 Bg2 f1B Bh7 Rf4 Bdb6 Ra4 Rh3 Qh4+ Kh2 Qe1 Bg6 Be7 Qb3 Bd8 Rc3 Rc4 Ba7 Ba5 Bh3+ Rg4 Bf2 Bd7 Kh1 Be8 Bad4 Bf7 Ba3 Bg8 Kh2 Ra4 Rc8 Rc4 Bdc5 Ra4 Ng3 Be2 Nf5 Rf4 Kg2 Rh4 Rb1 a1N Nfe7+ Rg4+ Qg3 Nb3 Nc6 Nd4 Ra1 Ndf3 Bh7 Kf7 e6+ Kg7 e7 Kh6 e5 Rgc4 Bg4 Kg5 e8Q Rc3 Nf6 Rcc4 Qh3 Kf4 Bg6 Rd4 Bh4 Ke3 Bd7 Rc4 e6 Ra4 Nde4+ Kd3 Nd5 Rdc4 B1e3 c1N Bhf2 Kc2 Nd2+ Kd1 Ra2 Nbd3 Rc2 Nb2 Bg5 Rd4 Rc4 Rh4 Rf4 Ncd3 Rf8 Rhc4 Bge3 Bf7 Rh8 Bg8 Nb1 Bb6 Bc1 Ba5 Nd2 Qf1+
1RNB3k/1n2q3/1PP1B3/R1r1r1N1/R1bp3B/1nb2Nn1/b1K1n3/1N1BBQ2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 g4 Kg7 f4 d5 c4 a5 b4 e5 f6+ Kf7 f5 h5 b6 e4 g6+ Ke8 c6 d4 b5 a4 g7 Kf7 c7 h4 c5 e3+ Kc2 h3 g5 a3 b7 a2 c6 e2 b6 h2 g6+ Ke8 Bg5 Nh6 g8N Be6 c8N Nd7 b8R Bb4 g7 Kf7 Nf3 Bc4 Bh4 Qe7 Bg2 Ba5 Qf1 Bc3 Bh3 Nc5 Bg4 Ra5 Rg1 h1B Rg3 Ke8 f7+ Kd8 f8B Ke8 f6 Kf7 Rh3 Nf5 Nh6+ Kg6 g8B Ng3 f7 Nb7 Bg7 Rc5 f8B Rh7 Nf7 Rhh5 Be6 Rhe5 Bgf6 Bg2 N7g5 e1N+ Kc1 Nd3+ Kc2 Nc1 Bg4 Bd5 B8e6 Nce2 Rh2 Bc4 Rh1 Qf7 Bd8 Bh3 Bd6 Kg7 Rh2 Qe7 Rg2 Rb5 Bb4 Kh8 Rg1 Rbc5 Rh1 Bb2 Be1 Bc3 Rh2 Ng1 Rd2 N1e2 Bh5 Bf5+ Rd3 Bh7 Bhg4 Bg8 Bh5 Bd2 Ra3 Bc3 Ra4 Rb5 Nfd2 Ng1 Ra5 Bd5 Bf5 Rc5 Bd1 N1e2 Ndf3 Bdf7 Nbd2 Be6 Rb1 Bgf7 Rb4 Bd5 Rba4 a1N+ Kd3 Bb3 Nb1 Ba2 Bd7 Bfd5 Be6 Nb3 Kc2 Bc4
B1NRbK2/3pbN1N/N3r1k1/N1Bbrn2/4Nr1n/P1r1RBq1/2P3Q1/1Q6 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 b5 Kb4 e5 f4 g5 h4 e4 f6 e3 f5 e2 a6 e1R h6 g4 a7 g3 h7 g2 h5 Re7 h6 Qc7 a3 Qd8 c6 Bb7 Kc5 b4 Kd6 b3 c7 b2 c8N Na6 Nd2 b1B Ne2 g1R Ng3 Nb8 Bg2 Nc6 Bf3 Nb4 Nge4 Bg7 Nb3 Rg6 Be3 Bf8 Na5 Rg1 Bc5 Ba2 Qb1 Rb8 a8B Rg5 Re1 Rg7 Re3 Bad5 Ra2 Nd3 Rb2 Bbc6 Rb4 Rb6 Rb3 Ra6 Rb8 Ne1 Rd3 Bc4 Bd1 Nf3 Na7 Rb6 Rc8 Rb3 Re3 Ne5 Bf3 Ba4 Rc3 Ke8 Re3 Rc3 Rb8 Qc8 f7+ Kd8 f6 Bc6 Bg2 Rg6 Bf3 Bg7 f8N Ke8 Ne6 Kf7 Nc7 Bf8 Na6 Be2 Bg2 Bh5 Bf3 Qd8 Rc8 Rg4 Rb8 Rf4 Rc8 Ng6 Rb8 Bg7 Rc8 Re5 Rb8 Kf8 f7 N8e7 Rc8 Rg8 h8N Bf6 h7 Kg7 f8N Bd5 Rb8 Nh4 Rc8 Be8 Nf7 Ng2 Rb8 Nc6 Rc8 Nd4 Rb8 Bh4 Rc8 Qg5 Rd8 Qg3 Nc8 Rg5 Ke7 Rg6+ Neg5 Rgf6 Ne4 Rh8 Ne6+ Kg6 N6g5 Rc6 Nfd6 Rhf8 h8Q R8f5 Nf7 Re6+ Kf8 Rfe5 Qh5+ Kf5 Nh7+ Bg5 Qh2 Nh4 Nc4 Kg6 Na5 Ndf5 Qg2 Be7+
B2RB1Kb/2pnN1N1/1k2n3/1rbBn2R/BN1BbPq1/4rQ2/b2N2P1/3R4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 b5 Kd4 h5 Ke5 e6 d4 b4 a4 b3 f4 b2 g6 h4 f6 h3 a6 h2 a5 Bc5 d6 Kc6 d5+ Kd7 f7 Bb6 f8N+ Ke8 d7+ Ke7 a7 Bb7 g7 Rh4 a6 Nh6 g8B Rg4 Ne2 Be3 Bf7 Qc8 d8N Bc5 Nec3 Rg3 Qf3 Nf5 Nd2 b1B Bb2 Nd4 Bb5 Ba2 Rad1 Rh3 Ba4 Nd7+ Ke4 Kd6 Nc6 e5 Ne7 Ne6 Kf5 e4 Kg6 e3 Be8 e2 Kf7 e1B Kg8 Rb8 a8B Bc6 a7 Rb5 Bb7 Bef2 a8B Bfd4 Ba1 Bh8 Bb2 Bb3 Na2 Bc4 Nb4 Ba2 Bd4 Rg3+ Qg4 Rd3 Qf3 Re3 Rhg1 h1N Rgf1 Ng5 Ne6 Nf2 Rh1 Ng4 Ng7 Ne6 Rh3 Nge5 Rh5 Ndf8 Bg6 Kd7 d6 Be4 Bd5 Qd8 Nec6 Qh4 Be8+ Kc8 Ne7+ Kb8 d7 Ka7 d8R Nfd7 Nb1 Qg4 Nd2 Kb6
4K3/1PB4N/1BPbBb2/2N2n1R/BR2B1q1/nr3b1B/rR1Q1bp1/2Qn2k1 w - - 0 1 illegal: No proof kernel
K4BNn/p3r1R1/BRrbR3/1P2RR1b/P1k2b2/b1B2B1n/1nN4q/1Q2N3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 cxb3 Qc7 b4 Qb6 b5 Qd8 Kd2 Kf7 Kc3 d5 Kd4 g5 h4 g4 b4 g3 a4 e6 f4 g2 h6 Bd6 f6 Qe7 b6 Qe8 h7 Qe7 f5 Bb7 b5 Bc6 b7 Be8 h5 Na6 b8R Nb4 h6 Qd8 c6 Qa5 c7 Qa6 c8B Qb7 Be2 Ne7 Rh5 Na2 Nf3 Nc3 Bb2 Ne4 Bc3 Ng6 Na3 Ng5 Qb1 Nh3 Nc2 Qc7 Nfe1 Ba3 Ra2 Qh2 Ba6 Rg8 h8R Rg7 Rg8 Nh8 Rb6 Rc8 h7 Rc6 Bf3 g1B+ Ne3 Bf2 Re2 Bg3 N3c2 Bf4 Re5 Bd6 Rh6 Ba3 Kd3 d4 Ke4 d3 Kd4 d2 Ke4 Rg1 Rg7+ Kf8 f7 Ke7 f8R+ Kd6 f6 d1N Kd4 Bh5 f7 Nb2 Rf6 Rg2 Rff5 Rf2 Re8 Re2 Re7 Re3 f8B Re2 Re3 e5+ Ke4 Nf7 h8N Kc5 Ng6 Kc4 Re6 Nh8 Ne7 Rg2 Rh7 Rg7 Ng8 Re7 Rhf7 Kb3 Kd5 e4 Re2 e3 Rg7 Bfd6 Reg2 e2 R2g6 Bf4 Ree5 Rce6 Rgf6 Bd6 Kc6 Kc4 Ng2 e1B Rfg6 Bf2 Nge1 Bfc5 Rh6 Bc7+ Kb7 Ba3 Ka8 Rc6 Rhe6 Bcd6
1R3b2/2K3B1/3N3N/nR1BB1nN/Bqb4N/1RQqp1P1/1rr1nBP1/k4n2 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 exf5 g4 dxc5 g3 hxg3 Qb6 Ne2 Qc7 Ng1 Qd8 Kd2 Kf7 Ke3 Kf6 Kd4 e5+ Kd5 a5 b4 h5 c4 a4 f4 d6 c6 a3 c5 e4 b6 a2 c7 h4 b5 h3 c6 h2 b7 Nd7 b8B Bb7 c8B Nc5 b6 Nb3 Qe1 Rh3 Be3 Bg7 Nd2 Rh8 Ne2 Rh3 Nd4 Ba6 c7 Rh8 Kc6 d5 b7 Rh4 Rb1 a1N Bf2 e3 Be6 Bc4 c8N Nh6 Nd6 Bf8 N2f3 Nf7 Qc3 Nd2 Rb5 Nab3 Bc7 Ra3 b8R Ng5 Bg8 Rg4 Nh4 Ra2 Bd3 Qe7 Bc2 Rb2 Rb1 h1Q Kb6 Na5 Ba4 Rc2 R1b3 Qf1 Bf7 Qe4 Be6 Qfd3 Bg8 Ke7 f6+ Kd7 f5 Nf1 f7 Qf4 Ne6 d4 f6 Rb2 Ng7 Qfe4 Nh5 Ke6 R5b4 Kd5 Nhf5 Qe7 Nh6 Rf4 Nc8 Ke4 Rb5 Qb4 Be5 Rc2 Be1 Rff2 Kc7 Rfd2 Bf2 Rb2 R8b6 Rdc2 Rb7 Qe2 Rb8 d3 Nb6 d2 Nc8 Be7 f8N d1N f7 Qd3 Ng6 Bf8 Qd2 Nc3 Nh4 Ne2 Qc1 Qdc3 Nd6+ Kd3 Qa1 Kd2 Qa3 Qd4 Qa1 Qd3 Qa3 Be7 f8B Kc1 Bfg7 Kb1 Bf7 Bf8 Bd5 Qe1 Qc5 Qb4 Qd4 Ka2 Qc3 Ka1
6B1/2b5/1N4qr/R1R1n2N/Q1qK1pn1/1R1Nr3/PBbP1nNn/Q2N2kN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 c5 h4 f5 h6 g5 h5 b5 d6 Kc6 a6 Kd5 h7 c4 h6 c3 a7 b4 d7 c2 e6 b3 e7 g4 e8R b2 Rh3 g3 Re5+ Kc4 Nc3 b1N Ra5 g2 Bb2 c1Q Qa4+ Bb4 Nd1 Qc7 d8N Qc6 Ne6 Qc7 Nc5 Qc2 Nd3 Na3 Rc1 Na6 Rg3 Qg7 Nh3 g1N Nhf2 Nc5 Nh1 Nf3 Bg2 Rb8 a8N Nh2 Bc6 Rb5 Be8 Nf6 Bf7+ Be6 Bg8 Nce4 Rh3 Nf2 Rf3 Kd5 Nb6+ Kc6 Kd4 f4 e4 Nc4 e5 Bd6 Re3 Bf5 e6 Bc7 e7 Qg6 e8N N6g4 Nf6 Nce5 Nh5 Kd6 Rh3 Rb3 Rg3 Qc6 Rcc5 Qb5 Ne1 Re3 Ng2 Bc2 Rh3 Re1 Rb3 Re3 Be6 Rf8 h8N Rf6 Bg8 Qc6 Nf7+ Ke6 h7 Kf5 h8Q Qb5 Nd6+ Kg5 Ne1 Kh4 Nf5+ Kh3 Nd3 Kg2 Nh4+ Kg1 Qg7 Qge8 Ng2 Rh6 Qf7 Qa6 Qfc4 Qg6 Qc3 Bb1 Qc1 Bc2 Qa1 Qc4+
3q1N1R/Q1n2qB1/2nBbB2/3p3N/2N1P1nb/3k2P1/KnN1r1N1/2Rr1B1R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 e4+ Ke6 c4 h5 g6 a5 c6 d5 c7 f5 b6 h4 g3 a4+ Ka2 f4 b4 a3 c5 h3 b5 f3 g7 f2 b7 h2 b6 Qd6 c6 Rh4 Qd4 Be7 Nh3 Rh6 Bg5 Bd7 c8N Bd8 c7 Ra7 Ne7 Bc8 Bf6 Na6 Ng6 Ne7 g8R Nc6 b8B Rh8 Bg7 Bh4 b7 Qd8 Qa4 Bd7 c8N Nc7 Nd6 Rh5 Rh8 Rf5 Bb5 f1N Nc4 Nd2 Rc1 Ra8 Qa7 h1N Ba6 Nf2 Nf8+ Ke7 e6 Ng4 Rh1 Rf2 Nf4 Re2 Ng2 Bc8 Nb6 Kd6 e7 Kc5 e8N Bd7 Nf6 Kd4 Nc4+ Kd3 Nh5 Be6 Bf6 Ne8 Bf4 Nc7 Bh6 Rc8 Bhg7 Ra8 Nce3+ Nc4+ Nd2 Rc8 Rac1 Ra8 Kb3 a2 b8B a1Q Nc2 Qe5 Ka2 Qf5 Bb5 Qg6 Ba6 Qf7 Bb5 Ne8 Bd6 Nc7 Ba4 Nb2 Nc4 Rb8 Bb5 Rb6 Ka3 Ra6+ Kb3 Ra1 Ba6 Rb1 Ka2 Bf5 Bb5 Be6 Rcd1+ Rd2 Ne5+ Kc3 Bf1 Re2 Re1 Rc1 Nc4+ Kd3 Bf4 Rd1 Bd6 Rd2 Rc1 Rd1
1q1q1nR1/N1B2b2/2K2N1N/1PBR2p1/4Pqq1/1QrR3r/n2R2N1/2k1bB1N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 c5 Ke4 g5 h4 a5 b4 f6 d4 c4 h6 c3 e6+ Kd6 h5 a4 h7 a3 e7 c2 e8N+ Kd7 d6 Ke6 b6 a2 d5+ Kf7 b7 Ra7 h6 Kg6 b5 Be7 d7 Bd6 Be3 c1Q Rh3 Bh2 d6 f5+ Kd5 f4 Na3 Kf5 Nc4 f3 Nf6 f2 Qb3 Qc3 Rd1 a1Q Bc5 Kf4 e4 Qf3 Ne3 Qg2 Rd2 Na6 b8N Rc7 Nc6 Qg4 Na7 Bg3 Ne2+ Kf3 Ng2+ Qc3 Be3 Qa5 Bb6+ Rc3 Bc5 Qf8 d8B Be6+ Kc6 Bf7 d7 Nb4+ Kb7 Qd6 Bc7 Ne7 d8R Na2 Rd7 Qdf4 R7d5 Ng6 Kc6 Nf8 Ne8 Rg8 h8R Rg7 Nf6 Rh7 Rg8 Rh8 Bb8 Qd8 h7 Qe5 Bc7 Qef4 Rh6 Bh4 Ng3 Qb8 Bc4 f1Q Nh1 Qd1 Bf1 Be1 Nh5 Qe2 Rhd6 Qee3 Rd7 Qf6+ R7d6 Qfd8 Nf6 Qef4 Rg6 Rg8 h8N Rg7 Rd7 Rh7 Rg7 Rh3 Rg8 Bg6 Nf7 Bh5 Nh6 Be8 R2d4 Bf7 Nh4+ Ke3 R7d6 Rd3 Ng2+ Kd2 Rd7 Kc1 R7d6 Rd2 Rd3 Rc2 Rd2 Rc4 R5d3 Rc2 R6d5 Rc3
4NB2/1nqkP2r/1bN5/1R1q2B1/BB2rQNP/2p2K1B/3r2R1/2Rr1bnR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 b4 c5 h4 f5 e4 a5 d4 f4 e6 g4 b6 a4 e7 f3 d6 a3 d7+ Kf7 e8B+ Ke7 b5 a2 d5 c4 e5 c3 b7 Qa5 d8N Qb6+ Qd4 Ra3 e6 Na6 b8B Qa5 b6 Qc5 b7 Qb6 h6 Nb4 h7 Nc6 Bh6 Na5 Nd2 Ra4 Nc4 Nf6 Nd6 Nh5 Nh3 Nf4 Rc1 a1R Ke3 g3 Nf2 g2 Ng4 g1R Bh3 f2 Kf3 Ne2 Qf4 Rd4 Ba4 Re4 Ne8 Rg2 Ba7 Rb1 b8R Qc7 Rb5 f1Q+ Bf2 Qd1 Bc5+ Qd6 Bg7 Ba6 Bb4 Nb7 Bh6 Qd4 Bg7 Q4c5 Bh6 Qdc7 Bg7 Rg8 h8R Rh2 Bh6 Rg7 Rg8 Rf7 Rg5 Bg7 Rg6 Bd4 Rg5 Q5d6 Rg7 Bb6 Nc6+ Kf8 Bg5 Qc5 d6 Qd5 Nef6 Re7 d7 Ra1 d8B Rg2 Nd7+ Ke8 Rg6 Rg7 Bde7 Rh7 Bf8 Rb1 e7 Rh2 Rc2 Rd1 Rc1 Rg2 Nc5 Rh2 Ne6 Kd7 Ng7 Ng3 Nf5 Rhd2 Ng7 Ne2 Ne8 Ng3 Rc5 Bf1 Rb5 Ne2 Nf2+ Qe6 Bf6 Re5 Rg2 Re4 Ng4 Qd5 Bg5 Ng1+
NR6/K1RPnr1p/4N2b/BN3bR1/N3Rnrq/5N2/P1Q3b1/Bbq2k1B w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Ke3 c5 d4 b5 g4 f5 a6 b4 e6+ Kd6 e7 b3 e8N+ Kd7 d6 Kc6 a7 Kd5 g6 Kc4 g7 b2 d7 Na6 d5 Bb7 g5 Nc7 g6 Nh6 g8R Nb5 g7 Qf6 d8B Qb6 d6 Nc7 d7 Nf7 Bg2 Na6 Rh4+ Be4 Nc7 Qb8 Bh1 Qb4 Ne6 Nd6 Ba5 Nc8 Nc3 b1B Nf3 Ne7 Bb2 Nc7 Qc2 Rb8 a8N f4+ Kd2 Bf5 e4 Rb6 e5 Rd6+ Ke2 Rd4 Kf2 Ncd5 Na4+ Kb5 Rg4 c4 Rh4 c3 Ke2 Re4+ Kd3 Qc5 Rg4 Qf2 Rg5 Qh4 Rg4 Re1+ Kd4 Rg1 Rg5 Ka6 Kc5 Rg4 Qd2 c2 Bbc3 c1Q Qc2 Ng6+ Kc6 Nde7+ Kc7 Kb5 Kb7 Kc4 Ka6 Nd5 Ka7 Ba3 Rb8 Rf8 g8R Rf7 Rgd8 Bf8 Re8 Nde7 Rec8+ Kd5 Rc7 Bh6 Qb3+ Ke4 Bb2 Bd3 Qc2 Ke3 Rb1 Bde4 Ba1 Bd3 R1b4 Bde4 Qc6 Bb1 Re4+ Kf2 Qc2+ Kf1 Ned4 Qh2 e6 Qh4 Nb5 Nd5 Ne1 f3 e7 f2 e8N Nde7 Ng7 Nf4 Ne6 Kg1 Nbd4 f1B Nb5 Bg2 Nf3+ Kf1
Bk1rqB1B/qP1B2Kn/1N1n1q1N/1Rb4B/R1b2q2/1QN2R1p/1N2r2P/8 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 d5 Kd3 Kd7 Kd4 Kc7 f4 h5 e4 a5 c4 g5 c6 h4 f6 g4 f5 a4 c5 g3 e6 g2 Ke5 a3 f7 a2 f6 h3 e7 d4 e8B d3 Nf3 g1Q Nc3 d2 Bg2 Bg4 b6+ Kc8 c7 Ra3 Nd4 Rb3 Bb2 Ne7 Nf5 Kb7 c8B+ Ka8 c6 Rh6 c7 Na6 Bcd7 Rb4 c8N Bh5 Qb3 Qf2 Rhb1 Rh7 Nh6 d1Q Ke6 Be2 e5+ Kb8 Ba8 Rf4 b7 Nf5 Nb6 Bc5 f8R Re4 Bh5 Qdg1 f7 Qe8+ Kf6 Bc4 e6 Qf4 e7 Qgf1 Kg6 Rh8 Kf6 Nd6+ Kg7 Qd8 e8N Nc7 Bf5 Nd5 Bd7 Nc8 Nd6 Nf6 Rg8 Q1f2 f8B Nh7 Rf1 Q2h4 Rf3 Qe8 Rb1 Re2 Ra1 Ba6 Ndc4 Nd6 Rb1 Qf2 Ba1 Q2h4 Nb2 Bd3 Rd1 Ba6 Rd4 Qf2 Ra4 Bc4 Be7 Q2e3 Rf8 Qe6 Rf5 Qee3 Bf8 Qf2 Nd3 Q2h4 Bb2 a1Q Rg5 Qa2 Ba1 Qa3 Nb2 Rc2 Ne4 Qc8 Kg6 Kc7 Nd1 Be2 Ra6 Bc4 Bfg7 Bd4 Rb5 Kb8 Raa5 Re8 Bf8 Bc5 Bh8 Re2 Nb2 Qcd8 Ra7 Qde7 Nc3 Rd8 Ra6 Qe8+ Kg7 Qa5 Nc8 Qb6 Ra4 Qa7 Nb6 Qhf6+
QN4B1/BPk2N2/1Rq1pb2/1qBn3N/2N1PqKn/bN3r1N/7r/1R2qQ2 w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 g5 g4 d4 f4 d3 h5 Qd7 fxg5 Qd4 cxd3 Qd8 d4 Bf5 d5 Bg6 hxg6 Qd6 Nf3 Qd7 Ng1 Qd8 Kf2 Kd7 Kg3 c5 b4 f5 e4 h5 d4 a5 d6 a4 g7 a3 b6 c4 g6 c3 b5 c2 b7 a2 b6 Nc6 b8N+ Kc8 g5 Ne5 d5 Qe8 b7+ Kd8 d7 Ra3+ Be3 c1Q Nd2 Nd3 Rb1 a1B Nb3 Qc6 Bc5 Qf7 Nh3 Kc7 d8N Nc1 Bc4 Qce6 Ndc6 Bb2 Na5 Nd3 Qf1 Nh6 g8Q Nf4 g7 Qc6 g6 h4+ Kf3 Bf6 d6+ Kd8 d7 Nd5 Rh2 f4 Rhb2 Nf5 Kg4 f3 Ba7 Kc7 d8B+ Kd6 Bdb6 f2 Bd4 Kc7 Bdc5 Rh6 Qh8 Qfe8 g8N Qb5 g7 Qec6 Qd3 f1Q Qd1 Rh5 Nh6 Qf2 g8N Qe3 Nf4 h3 Qf1 h2 Nf7 h1Q Nh3 Qh6 Bb4 Nh4 Bbc5 Nb4 Be6 Nd5 Nc4 Qd2 Na1 Rf3 Nb3 B6g7 Nf6 Qc1 Qf2 Qhe1 Qf1 Rh6 Nh5 Bf6 Ra2 Qce3 Ra6 Q3d2 Rb6 Rh7 Bf5 e6 Bg6 Rh6 Bh7 Qde3 Bg8 Q3c1 Bf2 Ba3 Bc5 Rg6+ Nfg5 Qa4 Qg7+ Be7 Qf8 Bd6 Nd7 Be5 Qa8 Qab5 Nb8 Bf6 Nca5 Rg7 Nc4 Ng6 Nf7 Qh6 Ng1 Rh7 Ng7 Qh2 Nbd2 Qhd6 Nb3 Rh2 Nh3 Nh4 Nh5 Qf4+
B3b1R1/qp2B2N/2PNq2P/r2Q1R2/1k1nqKN1/2Nq1n2/1bR5/BBBr4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Ke3 Kd7 h4 Kc6 c4 e5 a4 g5 f4 g4 h6 e4 f6 g3 f5 g2 a6 d4+ Kf4 d3 a5 e3 a7 e2 h7 e1Q f7 d2 a6 Qee7 f6 Bh3 h5 Qe2 h6 Qdd3 Nc3 Bf5 Nf3 g1Q Rh2 Qc2 Ra5 Qe8 Ne5+ Kc7 c6 Kb6 c5+ Kc7 Bd3 Bd7 Ng4 Bg7 f8B Qe6 f7 Be8 Be7 Nd7 f8N Ne5 Rg2 Rd8 a8R Nf3 a7 Qf2 Qh1 d1Q Bg6 Qce2 Bb1 Qdd3 Rb8 Rd5 a8B Qee1 Qh5 Qa2 Rb5 Qa7 Rc2 Re5 Qf5 Qee2 Qe4 Rh5 Qd5 Bd4 Bf6 Ne7 Ra5 Rg8 h8B Nf5 Be7 Rgg5 Bg7 Rh1 Nh7 Rd1 Bh8 Bf6 Rb5 N5d4 Rd8 Bf7 Rg8 Be8 Ra5 Kc8 c7 Rh5 Qa2 Kd7 c8N Kc6 Nd6 Qde4+ Kg3 Q2d3 Qd5+ Kc7 c6 Kb6 Qc4 Rg5 Rf5 Bg7 Qd5 Ka6 Ncb5 Ka5 Nc3+ Kb4 Rf4 Re5 Rf5 Qe1+ Kf4 Qh1 Qa2 Ra5 Qd5 Bf6 Bg7 Qhe1 Bh8 Q1e4+ Kg3 Ra4 Ncb5 Nb3 Bg7 Ra5 Bh8 Bg5 Bhb2 Bf6 Ba1 Bb2 Nc3 Qe1+ Kf4 Nbd4 Qa2 Q1e2 Qd5 Q2e4+
q3R1n1/P1bR1Q1R/n1NP1R1b/4r2B/2BN1N2/q1p1N1r1/2b1Nk1B/Kb6 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc3 b5 Kb2 c5 h4 g5 a4 e5 f4 b4 a6 e4 f6 c4 h6 g4 a7 b3 a5 g3 f7 g2 h7 e3 f5 e2 f6 e1Q a6 Qee8 h5 Ne7 h6 Nec6 Ne2 g1B Nd2 Bg7 f8N Bb7 f7 Bf6 Ne6 Bg7 f8R Rg8 h8R Qc7 h7 Qed8 Rf6 Kd7 d6 Qcc8 d5 Rf8 N6d4 Rf7 Re8 Bh2 h8N Bh6 Ng6 Re7 Ngf4 c3+ Kb1 b2 Nc4 Rg7 Ne3 Ne7 Qb3 Qc5 Bd2 Rg8 Be1 Rg1 Bg3 Ng8 Ka2 Qb4 Rd1 b1B+ Ka1 Qa3+ Qa2 Bc6 Rd2 Ba4 Rd3 Kc8 d7+ Kc7 Rd2 Qc8 d8N Bac2 N8c6 Kb6 Rd3 Kc5 Rd2 Nd7 Rd3 Rb8 a8B Rb5 a7 Nb8 Bb7 Rg2 Ba6 Ra5 Bc4 Na6 Rd1 Qa8 Rd2 Bg1 Bh2 Bf2 Rd3 Bg3 Rd1 Rg1 Bh3 Rg2 Bg4 Rb5 Bh5 Ra5 Nh3 Bc7 Nhf4 Rg1 d6 Rg3 Rdf1 Kb6 Rf7 Re5 Rd7 Kc5 Ng6 Rg1 Rf6 Rg3 Ngf4 Qb3 Bg1 Rf3 Nde6+ Kb6 Nd1+ Rfe3 Bb5 Bf8 Bf3 Qa4 Rhh7 Qa3 Bh5 Bh6 Bh2 Rg3 Ng5 Kc5 Nf3 Qb4 Qf7 Qb3 Ne6+ Kd5 Bc4+ Ke4 Ne3 Qb4 N6f4 Qc5 Neg2 Qb4 Nfd4 Qb3 Nh4 Ke3 Nhg2+ Kf2 Ne3 Qa3+
1kr1N1Q1/p3qnBQ/BB2bB1R/qNR1bR2/P7/3B2Pr/4rK1n/4rB2 w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 g5 c4 g4 cxd5 g3 hxg3 Nd7 g4 Nb8 g5 Bd7 Ne2 Be6 Ng1 Bc8 d4 Kd7 f4 Kc7 a4 e5 d6+ Kd7 g3 b5 g6 h5 f6 h4 g7 h3 f5 e4 f7 e3 f6 e2 d5 h2 Be3 b4 Nd2 b3 Ngf3 b2 Nd4 b1Q Kf2 e1R Qh5 Qc7 c6+ Kd8 d7 Na6 Ne4 Rh6 Nb5 Rd1 Bb6 Rd3 Ned6 Rb3 Ne8 Qh7 Rc1 Ba3 f8B Nb8 f7 Bd6 Rc5 Nf6 g8B Re3 Bg7 Be5 f8R Re1 Qg6 Rh3 Be6 Qh4 Qh7 Re4 Bf5 Ng4+ Kf3 Re2 Bd3 Qg5 Rf5 Qd2 Na3 Qa5 Nb5 Ke7 d6+ Ke6 d8B Qe7 c7 Kd7 Rg1 h1R Rg2 Nc6 Rh2 Qe6 Bg5 Qe7 B5f6 Rg1 Rh1 Nd8 Rh2 Nf7 Rh1 Ke6 d7 Rb8 d8Q Ra8 Bg2 Rge1 Bf1 Bd7 c8B Rb8 Ba6 Rc8 Rc1 Kd5 Ned6 Be6 Qdg8 Rh4 Ne8 Rh3 Rd1 Kc6 Rc1+ Kd7 Rc5 Nd6 Rh2 Nf7 Rf2 Nh2+ Kg2 Nd8 Rh5 Nf7 Rh6 Qb4 Kg1 Qa5 Rf5 Rc6 Bb7 Rc7 Ba8 Kc8 Bb7+ Kb8 Ba6 Re4 Kg2 Rc8 Kf2 R4e2+
3r1n1q/rnbpRBB1/3PRRQq/1R5N/2PR1B1k/N2K4/2nN3q/2r1N3 w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 Ba6 a4 Bb5 axb5 Rh7 Ne2 Rh6 Ng1 Rh8 Ke2 Kf7 f4 Kf6 d4 a5 h4 g5 h6 e5 c6 e4 h7 b3 d5 e3 b6 g4 c7 a4 c8N a3 d6 a2 h5 g3 h6 g2 b7 b2 Nb6 Qc7 Rh4 Qc8 Nc4 Ne7 Ncd2 Ra3 Ngf3 g1R Ne1 Ra8 Kd3 e2 Na3 Nbc6 b8R b1Q Rb5 Rhg8 h8B+ R1g7 h7 Kf7 f6 Kg6 f7 Qb7 f5+ Kg5 Rd4 Rg6 Bg7 Ra7 h8R Na5 Rh6 Qb2 f6+ Qd5 c4 Nb7 Bg2 Qc5 Rb1 a1Q Qc2 Qe5 Bd5 Qf4 Rh7 Rh6 Be6+ Kh4 Re5 Qba2 Rbb5 Ng6 Ree4 Be7 f8N Rh8 Bf7 Bd8 Ne6 Bc7 Ree5 Rd8 Qb1 Qg4 Nf4 Nf8 Re6 Qg5 Nh5+ Qf4 Ne4 Qh2 Bf4 Q2b2 Nd2 Qc1 Be8 Rg6 f7 Rg1 Qc2 Ng6 f8R Rf1 Rff6 Nf8 Bf7 Rh1 Ne4 Qab2 Be5 Qh6 Bf4 Qa1 Nd2 Rf1 Ke3 Rg1 Qg6 Qc3+ Nd3 e1N Ke4 Nc2 Ne1 Qa1 Kd3 Ne3 Nec2 Rc1 Ne1 Nc2 Rh8 Nh7 Rhe8 Nf8 R8e7 Qh8 Rdd5 Qe5 Rd4 Qg5 Rb2 Qgh6 Rb3 Qf2 Rb5 Qh2
n2N1R2/1B2rp2/R2bP3/B4Pn1/1q1NRN1r/nRr5/1K1Nn2k/4QBNn w - - 0 1 legal: proof: g4 h5 gxh5 e5 c4 b5 cxb5 e4 b6 d6 a4 e3 b4 Qd7 a5 Rh7 b5 Be7 a6 Bb7 axb7 Qd8 dxe3 Rh6 e4 Bf8 e5 Rh8 Kd2 Kd7 Kc2 Ke6 h4 Kf5 f4 Kg4 e4+ Kg3 h6 c5 e6 a5 h7 g5 e5 c4 f5 c3 h5 a4 e7 d5 e8B g4 e6 a3 h6 a2 Qe2 d4 Ba3 Qe7 Rh4 Nf6 Nd2 Ra7 Bb4 Na6 b8R Nc7 b7 Ne4 b6 Ng5 Bc6 Na8 Ba5 d3+ Kc1 c2 Kb2 c1R Qe1+ Kf4 Bh1 Rc3 Bd5 Qd6 Bf3 Be7 Rf8 Qc5 b8N Bd6 Nc6 Re7 b7 Qc4 Rh3 g3 b8N g2 Nd4 Qc5 Bb7 Qb4+ N2b3 d2 Nbc6 Kg4 Nd8 Kf4 Re3 Kg4 Rb1 a1N Re5 Nc2 Re4+ Bf4 Ra1 Na3 Ra2 Rg8 h8N d1N+ Ka1 Rg6 h7 Rh6 Nd2 Nf2 Ng6 Kg3 h8R Bd6 Nf4 Kh2 Rb2 Rh4 Rb3 Nh1 Rhg8 Nh7 Rg3 Ng5 Kb2 Qc4 Rb6 Qc5 Ra6 Qc4 Ngh3 g1N Rge3 Ne2 Ng1 Rc1 Rc3 Qb4+ Rb3 Rc3
B3r1N1/1Q1qRnK1/2B2b1N/6B1/3p2Rn/2nn1B2/RnBPP1Nk/q2r2N1 w - - 0 1 illegal: No possible last move
R3N3/3n4/2Br4/p1PRq1Bk/PN1bRrRB/q2Brr1N/5QK1/2Bbb3 w - - 0 1 legal: proof: g4 c5 d4 g5 b4 f5 bxc5 e5 gxf5 Nc6 dxe5 g4 h4 Nd4 Rh3 Ne6 Rh1 Ng5 hxg5 Qb6 Bd2 Qf6 Bc1 Qd8 c6 Kf7 e4 d6 c4 h6 f4 g3 e6+ Kg7 g6 b6 c7 b5 e5 h5 e7 Kh6 e8R h4 g7 a6 e6 g2 Kf2 d5 f6 h3 f7 h2 f5+ Qg5 e7 d4 f6 d3 Nh3 d2 Qe1 d1R Nc3 b4 Nd5 Bg4 c8B b3 Bb7 b2 Bc6 b1Q a3 Kh5 c5 g1B+ Kg3 Qbg6 Nb4 Rd6 Bfb5 Qh7 Qe2 Be3 Rd1 h1R Rd5 Qd3 Ba4 Rc8 Bc2 Bg1+ Kg2 Bd4 Ra2 Qb3 Bd3 a5 a4 Qc3 Qf1 Bf2 Re2 Qa3 Re6 Rc7 Ra8 Be1 e8N Re7 Qe2 Rf1 Qb2 Rf5 Qf2 Rh7 Re2 Ree6 Ree5 Be7 f8B Qf4 f7 Bd1 Re2 Nf6 g8R Nd7 Bh6 Bf6 f8B Bd4 Be7 Rf7 Rg4 Qg5 Bd8 Rf3 Bf6 Qf5 Bh4 Re4 Bhf4 Qe5 Bfg5 R7f4 Rc2 Ba1 Rc4 Ree3 Re4 Bd4
2K3k1/4rN2/7r/2BBP1rR/3R1B1R/p1b1NB2/P1b1bNB1/n1qQqbR1 w - - 0 1 legal: proof: g4 c5 d4 g5 b4 f5 bxc5 e5 gxf5 Nc6 dxe5 g4 h4 Nd4 Rh3 Ne6 Rh1 Ng5 hxg5 Qb6 Bd2 Qf6 Bc1 Qd8 Kd2 Kf7 Kc3 d5 Kb4 b5 c4 h5 f4 d4 e4 d3 e6+ Kg7 f6+ Kh7 f5 a6 e5 d2 f7 g3 f6 h4 e7 g2 e8N h3 g6+ Kh6 g7 Kh7 Nd6 h2 c6 a5+ Kc5 b4 c7 b3 Kc6 b2 c5 a4 Nc3 b1Q Nh3 g1R Nf2 a3 Nd5 Bg4 c8B Qb8 Bb7 Bf5 Bg2 Nh6 Ne3 Qa5 g8R Bc2 Kd7 Qba7 c6 Nf5 c7 Re8 c8B Nd4 Rg5 Q7c5 Bbd5 Nb3 Bcb7 Qac3 Bbc6 Re7+ Kc8 Q5b4 Rb1 Na1 Rh5+ Bh6+ f8B Qh4 Nfe4 Qe1 Nf7 Kg8 Nf2 Qb2 Bgf3 Rg5 Rg1 Qc3 Rb4 h1B Rd4 Bg2 Rdh4 Bf1 Bg2 Rb7 Bc5 Re7 Bdf3 Bf8 Bcd5 Rh6 Neg4 Qee3 Nd6+ Kh8 f7 Qb2 Ba7 Qe1 Bb6 Ra7 Bd4 Be7 f8R+ Kg7 Rf7+ Kg8 Be3 Bd8 Bc5 Ba5 Rf4+ Rf7 Rd4 Bc3 Bb7 Rd7 Nf7 Re7 Bbd5 Qb1 Qe2 d1B Bf4 Qb2 Ne3 Qc1 Qd2 Bde2 Qd3 Rhg6 Qd1 Rh6
2K1B2r/2pn2k1/bP1RB3/1QPnq1B1/2q3q1/1R2R3/n3Q1N1/nRNR2bR w - - 0 1 illegal: No possible last move
q1KB1B2/r1Rp1NbB/7R/3rBr2/1BN3Pn/1QR2r2/q2Pk1NR/2qn4 w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 g4 cxb5 g3 a4 Kf7 a5 Qe8 a6 Bb7 axb7 Qd8 b6 Bh6 b5 Bf8 hxg3 Bg7 g4 Ke8 g5 Bf8 Ke2 Kf7 Ke3 a5 Kf4 c5 Ke5 h5 f4 h4 g4 c4 f6 Kg6 f7 h3 Rh2 a4 Bb2 c3 Qb3 a3 Nf3 c2 Ne1 c1R Ng2 a2 Na3 Rc3 Nc4 Nf6 Rc1 a1Q Bd3+ Ne4 Kd5 Bh6 f8B e5 Bb4 Nc6 b8R Ra7 b7 Bg7 b6 Nd4 Rc8 Nf3 b8R Qf6 b7 Nh4 Rc7 Rh5 Rh8 Qa2 b8B Qfa6 Bb1 Rf3 Rc3 Q6a3 Ba1 Qc1 Bd3 Nf5 Bb2 Nf2 Bb1 e4 Rh6+ Kf7 g6+ Kf6 B2a3 Nh4+ Kd6 e3 f5 Kg5 f6 e2 f7 e1R f8B Rf1 Ke7 Nd1 Kd8 Rf5 Kc8 R1f3 Ba5 Rd5 B3b4 Rdf5 Ne1 Kf4 Ng2+ Kg3 Bc2 Kf2 Bb1 Be5 g7 Ke2 g8N Bg7 Bb6 Rd5 Bh7 Rhe5 Rf6 Rh5 Nh6 Rhg5 Nf7 Rgf5 Rh1 h2 Rh6 Ra6 Rcc6 Raa5 Be5 Ra4 Bd8 Ra7 Rf1 h1Q Rc7 Qh3 Rh1 Qg3 Bef6 Qd6 Rh2 Qc6 Be5 Qa8#
1nB1Q3/pQBnB2N/1n4N1/1q1R2R1/6r1/5nRB/PP1b1qBr/K1k1Bq2 w - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 g5 c4 f5 cxb5 Bb7 h3 Bf3 gxf5 g4 Kd2 g3 Ke1 Bg4 hxg4 Qh4 Qd5 Qg5 Qd1 Qd8 Kd2 Ke7 Kc2 h5 f4 c5 e4 d5 f6+ Ke6 f5+ Kf7 b6 d4 g5 c4 g6+ Ke8 g7 Kd7 b7 Kc6 f7 Kc5 e6 Kb4 f6 g2 e7 c3 e8B h4 e5 h3 e6 h2 e7 Na6 b8B Rh4 Bc7 Nh6 g8R Rc8 Nd2 d3+ Kb1 Ng4 Ne2 g1N Bg2 Nb8 Bd7 Qe8 Nf4 Bh6 f8B Nf3 f7 Nf6 Ng6 Rg4 Rg1 h1Q Ne4 d2 Ng5 Kc4 Nh7 Kd3 Qb3 d1N Bd2 Qh2 Be1 Bd2 Qb7 Ne3 Rg7 Rd8 Bc8 Qb5 e8B Nfd7 Be7 Nd5 f8Q N5b6 Bh3 Qe2 Rg3 Qf2 Bf7 Ke2 Bd5 Kd1 Qf7 Rh8 Qe8 Rh4 Bde6 Rg8 Bg2 Rh2 Beh3 Rf8 Ne5 Rf4 R7g5 Rg4 Ng6 Ke2 Kc2 Ke3 Rd1 Ke2 Kb1 c2+ Ka1 Ke3 Rb1 c1Q Rd5 Qcc4 Rc1 Qcf1 Rcc5 Ke2 Rg5 Kd1 Rcd5 Kc1
1q2Rb1k/1N1R1p1b/3PBP2/1R2Q1r1/NN4K1/r3BRb1/bB4BR/b2b2n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 d5 axb5 Nd7 d4 Nb6 dxc5 d4 Rh6 Bf5 Rh1 Nd5 exd5 Bc8 Ke2 a5 Kf3 e5 g4 h5 c4 a4 b4 a3 c6 a2 c7 d3 c5 h4 g6 h3 c6 d2 b6 h2 b7 Nf6 b8B Rh7 g7 Qd6 g8R Ke7 g5 Rg7 b5 Qa3+ Nc3 Bd7 c8B Ng4 c7 Qb3 b6 Ba4 b7 Bb5 g6 Kf6 Ba7 Ba3 b8R Bc4 Bg2 Bd3 Qe2 d1B Bae3 Bc5 Nh3 Qb4 Na4 Qb1 Be6 Bb6 c8N Ra6 Bb2 Ba7 Rb5 Bc5 Re8 Bf8 Nd6 Rg8 g7 Bh7 Rf1 h1B Nf4 Nh2+ Kg3 Ra5 Nb7 Nf3 d6 Ng1 Nd3 Kg6 f4 e4 Kg4 Ra6 Bc5 e3 Rf3 Kh6 Qe1 e2 f5 Ra5 Qg3 e1B Qe5 Bg3 f6 Ra8 Nb4 Kg6 Nc3 Ra3 Na4 Kh6 Be3+ Kg6 Bc3 Qb2 Rc1 a1B Rc2 Qb1 Bh3 Bg2 Bb2 Bf1 Rc7 Bc4 Bg2 Ba2 Rce7 Qc1 Rd7 Qc7 Bb6 Qb8 Bf2 Rh8 g8R+ Kh6 Rg5 Rg8 Be3 Bg6 Bc3 Kh7 Bb2 Kh8 Rh5+ Bh7+ Bg5 Rg6 Rh2 Rh6 Bgc1 Rh5 Be3 Rg5+
3q2bb/Kr1N3B/2RBP3/2B1B1n1/kn1nRp1n/4NP1R/3RRQ1n/n6N w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 h4 c4 h3 gxh3 Na6 h4 Nb8 h5 Rh7 Bd2 Rh6 Bc1 Rh8 b4 a5 c5 a4 b6 Be7 c6 Ra7 b5 Rb7 cxb7 Bf8 Kd2 f5 Kd3 g5 Kc4 c5 e4 g4 h4 a3 f3 f4 e6 g3 e7 g2 h6 d6 e5 Kd7 e8R a2 h5 Qe7 h7 Bh6 Nd2 Bg5 h6 Qg7 Ne2 g1N Ng3 Qe7 Rh2 Qf6 Bd3 Nh3 Ndf1 Qd8 Qe1 Nf6 Ba3 Nc6 b8B Nd4 b7 Ng4 b6 Kc6 Rd2 Bf6 Nh1 Nh2 Rc1 a1N Ne3 Ng5 Qf2 Rg8 h8B Rg7 h7 d5+ Kc3 c4 Kb4 c3 Ka5 c2 Ka6 Rf7 Bbd6 Be6 b8R Rb7 Bac5 Bg8 Re1 c1N Ree2 Na2 Rc8+ Rc7 b7 Nb4+ Ka7 Bg7 Bg6 Kb5 Re6 Ka4 Re7 Bf6 Bg7 Rd7 h8R Rc7 Rh3 Rd7 Bf8 Bh8 Bh7 Rc7 Ka8 Rd7 b8N Rb7 Re8 Nf5 Rc6 d4 Bh6 d3 Bg7 Nh4 Bf6 Rb6 Ka7 Rb5 Rb2 d2 Nd7 d1N Rbd2 Nc3 e6 Nbc2 Bfe5 Nd5 Rf8 Nd4 Rf5 Nf7 Rg5 Nb4 Rg1 Rb6 Rc1 Ng5 Rc4 Ndf5 Re4 Nd4 Rd3 Rb5 Rdd2 Rb7+
4b1NQ/3q2N1/1kN1RN1r/3p2n1/1n4b1/Qr3P2/2P1BprB/bKRNB1N1 w - - 0 1 illegal: No proof kernel
B1B5/NRr1QBr1/b5P1/4QQ2/qK1p2B1/rnP1B2B/pN2b2b/k1n1R3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 b4 d5 e4 a5 g4 h5 c6 f5 c7 f4 g6 a4 g5 a3 g7 h4 g6 a2 b6 h3 b7 h2 b5 f3 b6 f2 Qe2 Bc5 Nd2 Be3 Bh3+ Ke7 e6 Kd6 e7 Kc5 e8B f1R e5 Rf4 e6 Rhh4 e7 Rf1 Bc6 Qd6 e8B Ne7 g8B Qd7 Bgf7 Bf4 Nc4 Nf5 Nf3 Rh7 Be3+ Nd4 Nfe5 Na6 b8Q Rg7 b7 Nb4 Rb1 Rc1 Nb2 Nd3 Re1 h1B Qf2 Bg3 Qf5 Bh2 Be6 Ra4 B8f7 Bf3 Bg4 Be2 Qa7+ Kd6 b8Q Nb3 Qb5 Ra3 Ba8 Ba6 c8B d4+ Kc4 Rd1 Nc6 Ndc1+ Kb4 Rd3 Qf2 Rc3 Qff5 Qe8 Qab7 Rc5 Na7 Rc7 c3 Qc6 Qf1 Qe8 Qg5 Qc6 Qe7+ Ke5 Qb8 Ke4 Nd1 Kd3 Nb2+ Kc2 Qf5+ Bed3 Qbb5 Qd7 Qfe5 Be2 Bh3 Qc6 Beg4 Qe8 Qf5+ Bd3 Nd1 Nd2 Qbe5 Qc6 Rb3 Qd7 Nb2 Kb1 Q5c5 Ka1 Qce5 Rb7+ Kc5 Be2 Rb5 Rc7+ Kb4 Nb3 Rb7 Qa4+
n1NrQ2N/1rk1B1Kn/PbBb4/B7/3B2R1/r1p4b/1RP1pq2/2R1BRN1 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 d5 bxa5 g4 e4 Qd6 exd5 Qb4 Rh3 Qf4 Rh1 Qg5 hxg5 Be6 Bd3 Bd7 Bf1 Bc8 Ke2 Kd8 Ke3 e5 Ke4 b5 d4 h5 a4 c5 f4 b4 f6 b3 f7 c4 d6 g3 g6 c3 a6 g2 f5 h4 g7 h3 d5 h2 a7 b2 a5 Rh7 f6 Nd7 Kf5 e4 Kg6 e3 a6 e2 Bd2 Nh6 g8R Rb8 a8R Rb3 Be1 Rb4 Nd2 b1R Ne4 R4b2 Rb8 Nc5 d7 Rh8 Nd6 Kc7 d8N Bg4 Nc8 Bh3 d6+ Kd7 Qc1 Ra2 Rb2 Bg4 Qe3 Rd1 Rc1 Na4 Qe4 Be7 f8B Ra3 f7 Bh3 Bg7 Rh7 f8B Ng4 Bd4 Nb6 Nf7 Na8 Nh8 Nf6 Qc6+ Kd8 d7 Bd6 Qe4 Rf7 Qe8+ Kc7 Be7 Nh7 Kh6 Rd2 Rg4 Rd3 Nf3 g1B Bg2 Bf2 Rf1 h1Q Ng1 Qh2 Bc6 Rd1 Bg7 Bb6 Bd4 Qf2 d8B+ Kb8 Bef6 Rb7 Bfe7 Bbc5 Ba5 Bb6 Kg7 Kc7 Bc5 Bg3 Be3 Rd8 Bd4 Bd6
2NB3r/BnNN2Kp/1r5n/bBR1R1P1/2q2R2/3kp3/1b2b1BP/R1R1Q1n1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 exd5 c3 bxc3 Bh6 c4 Bg7 c5 Bf8 Kf2 Kd7 Ke3 f5 Kf4 a5 Ke5 e6 d4 a4 c4 f4 g4 f3 c6+ Kc7 g6 Kb6 d6 a3 g5 f2 d5 Kc5 d7 a2 g7 Ra5 b6 Ne7 Kf6 e5 g8B e4 d6 Ra8 b7 Qb6 d8B Bd7 c7 Nc8 Bg2 f1N Qe1 Kd4 c5 Na7 c8N Nac6 Nf3+ Kd3 Nc3 Ne3 Bc4+ Kc2 Nb5 Bg4 d7 Ra6 Ne5 Nd4+ c6 Qc5 Nc7 Nf3 Bb5 Nf5 Be3 Qc4 Ba7 e3 Rf1 Ng1 Rf4 Bb4 Rc1+ Kb3 Ra1 Nh6 Kg7 Rb6 Rc1 Na6 b8R a1B Ra8 Kb2 Nd5 Bc5 c7 Qc2 Be7 Ng8 d8R Qa4 Nd6 Qa5 c8R Qa2 Bb8 Qc4 Re8 Bb4 Nd7 Nc5 Bd8 Nh6 Re5 Nb7 Rc5 Be2 Nc7 Bd2 Ra4 Ba5 Ba7 Kb3 Nc8 Bb2 Rb1 Kc2 Rc1+ Kd3 Ra3+ Bbc3 Raa1 Bb2
1rB1QnNQ/3K1P1b/1B1R3N/1n1R3P/3Bp2r/5Q1Q/1p1QQ3/k1q1bbr1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 d5 c4 b5 h4 g6 a4 e6 h6 b4 h7 b3 a6 d4 a5 b2 h5 d3 c6 d2 a7 Bc5 a6 Ne7 c7 Ng8 Nf3 Qd5 Qe2 d1B Ng5 Bd4 c5 Nd7 c6 Ne5 Be3 Nd7 Ra5 Qg2 Nd2 Qd5 Nde4+ Ke7 f6+ Ke8 f7+ Ke7 f8B+ Ke8 Bc5 Qc4 Bb6 Ke7 Nf6 Kd6 Bh3 Ne7 Ng8 Rb8 a8Q Bc2 a7 Nf5 Rd1 Ba6 c8Q Nf8 c7 e5+ Kg4 Bd3 f4 Bc3 Bed4 Be1 Qe8 Qc1 c8Q Bc2 Qd2 Bf1 Qag2 Be4 Ra6 Kd5 Qge2 Nd6 f5 Nb5 Nf7 g5 f6 Bd3 Qcd7+ Kc4 a8Q Kb3 Qaf3 Rc8 Qdf5 Rc4 Nfh6 Ra4 f7 Ka2 Qfc8 Ka1 Qcf5 Bb1 Q5d3 Bc2 Kf5 g4 Kf6 g3 Ke7 g2 Bc8 g1R Qdf5 Bb1 Q5h3 Bf5 Ra5 Nc3 Rd5 Nb5 Bdc5 Rh4 Bd4 Ne6 Kd7 e4 Nf6 Rhg8 h8Q Bh7 Rd6 R8g5 Nfg8 Rc5 Ba6 Rc8 Rd5 Ra8 Bc8 Nf8+ Ke7 Ka2 Rd6 Rf4 Qdc3 Kb1 Bf6 Ka2 R1d5 Rh4 Qcd2 Rb8 Bfd4 Ka1 Kd8 Ng6 Kd7 Nf8+
R1B1bKnb/1Q1Q1PQN/3P3p/3B4/q2N1k1B/2R3rQ/Q2pb1nQ/4rn2 w - - 0 1 illegal: No proof kernel
br3q2/3Q1P2/2nPNpr1/RnBN2Q1/N3Qbp1/Q2b4/5QBk/RQrK4 w - - 0 1 illegal: No proof kernel
1rrk3b/5p2/1RR1R3/b1R1nP2/P1KBqrB1/1N2N1QR/1pn4Q/1R1Qn3 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 b6 e4 Qd6 e5 Qd8 d6 Kd7 e6+ Kc6 Ba6 Kd5 Bf1 Bd7 exd7 Ke6 d5+ Kf6 Kd2 g5 Kd3 c5 f4 e5 h4 e4+ Kc4 e3 a4 g4 a6 e2 a7 e1B h6 g3 h5 g2 f5 Qe7 d8R Qd7 h7 Bd2 h6 Bc3 Be3 Ba5 Ne2 g1R Bd4+ Kg5 Na3 Nf6 Bh3 Qc7 d7 Rg8 h8Q Qf4 d6 Bg7 h7 Nd5 Nc1 Nb4 Bg4 Rf1 Rh3 Qe4 Nc2 N8c6 Rb8 Rc8 d8R Rf4 Ne3 Nc2 d7 Bf6 Rb7 Rab8 a8Q Bg7 Rb1 b5+ Kb3 b4 Kc4 b3 Rb6 b2 Re8 Bf6 d8R Bg7 Re5 Kf6 Qg8 Bh8 Rde8 Be1 Nb3 Ba5 Kb5 c4 Rc5+ Qe5 Re7 c3 Rc7 Rf8 Rc8 Ke7 Kc4 Qe4 Re8+ Kd7 Re6 Rfc8 Qg7 Kd8 Qe5 Rf2 Qg3 Rf4 Rhh6 Na1 Qh2 c2 Qa7 c1N Rhg6 Rb7 Qb8 Nd3 Qe5 Ne1 Rgf6 Rf3 Qeg3 Rf4 Rg6 Nac2 Rh6 Rbb8 Rhg6 Be5 h8R+ Kd7 Rh3 Kd8 Rgh6 Bh8 Rhf6 Ne7 Rec6 Ng6 Rfe6 Ne5+
N2QNQB1/1bP5/1pq2NK1/4PrRr/1rN4R/1nnpb3/k2b2N1/N3B1B1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 a4 b6 c4 d6 h4 g4 h6 f6 h7 g3 h5 g2 h6 Nc6 a6 Nb8 a7 Nc6 a5 Nb4 a6 Nc6 Rh4 Rb8 a8N Qe8 a7 Ba6 Nh3 g1B Nf4+ Kd7 Kf5 d5 e4 d4 e6+ Ke7 Nd2 Ne5 c6 Kd6 c5+ Ke7 c7 Qc8 c6 Kd6 Ra5 Nd3 Nb3 Nc5 Bc4 Be3 Kg6 f5 e7 Bg1 Na1 Bb7 Be3 Nf6 Ng2 f4 Bg8 Nb3 Rg5 Nd5 e8N+ Kc5 Nf6 Kc4 e5 Qd7 c8N f3 Nc7 f2 a8N f1R Nce8 Bb4 c7 Bd2 Ncd6+ Kc3 Bf2 Kb2 Nc4+ Ka2 Qf3 d3 Bd4 Bh2 Bg1 Nc3 Qd5 Qe6 Qd8 Be3 Bf7 Rf8 h8B Rb1 h7 Qc6 Bg8 Bhf4 Bg7 Bd2 h8Q Bfe3 Bh6 Rf7 Bf8 Rh7 Qg7 Rh5 Bb4 Rb2 Qf8 Rc8 Qd7 Rd8 Qc8 Rd4 Qd8 Rf4 Bc5 Rf3 Bf2 Rf5 Be1 Nc1 Bd4 Rb4 Bc5 Nb3 Bd4 Bf4 Bg1 Bfe3
1b4n1/PN1p4/2BBR1r1/p1R1P1Q1/BN1k1rbR/n1q4r/NRR5/2KN1b2 w - - 0 1 illegal: No proof kernel
B2q1rB1/p2RP2N/rp1RnR2/r4BRK/5P1B/1k2n3/1N3b2/R1Q1Nn1b w - - 0 1 illegal: No proof kernel
3rk1N1/n2R4/2Q1b1q1/2r1Q1R1/1p3KQb/1BPQB1qP/3pQ3/1n1Nq1RQ w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Ke3 e5 a4 d5 f4 b5 h6 e4 h3 b4 f6 g4 f7+ Ke7 a6 g3 f5 d4+ Kf4 e3 f6+ Kd7 c6+ Ke6 c7 Kd7 a7 e2 a5 e1Q h7 g2 a6 d3 Be3 d2 Qe2 Qe8 Ra5 Qd1 Rg5 Ne7 Nf3 g1Q Nh4 Nbc6 Nf5 Bb7 Nc3 Ng8 Ne7 Rc8 a8Q Qd8 a7 Bh6 f8R Qe1 f7 Qc1 Nd1 Qg2 Rg1 Nf6 Ng8 Ne4 c3 Nd6 Re8 Nb5 f8Q Na3 Re6 Qa1 Qf5 Nb1 Rd6+ Ke8 Rd7 Bf8 Qfb5 Be7 Qbd3 Ba6 Qb7 Bc4 a8Q Na7 Qc6 Be6 Qab7 Bf6 Qa8 Qe7 Qab7 Rd8 c8Q Qg7 Qba8 Qg6 Qab7 Qh1 Bg2 Be7 Bd5 Qg2 Bb3 Bf6 Ne7 Rf8 Ng8 Rf7 h8Q Rh7 Qcf3 Rh5 Qg4 Be7 Qcc6 Bf6 Rb5 Bh4 Qhd4 Rc5 Q4e4 Rc4 Rg5 Rc5 Qbc7 Qb2 Qce5 Qc1 Nf2 Qe1 Q4d5 Qgf1 Qh1 Qg2 Nd1 Qgg3+
1Bn3kq/b1Rr4/Q1qR2n1/K3n2R/P1NQp2R/3QP1pr/B5b1/2RN2R1 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 d5 bxa5 g4 c4 Qd6 cxd5 Qf6 Qa4+ Bd7 Qd1 Qg5 hxg5 Bc8 a4 Kf7 f4 e5 d4 b5 Kd2 h5 Kc3 c5 f6 c4 f5 h4 d6 h3 Kb4 c3 d5 h2 g6+ Ke8 f7+ Kd8 g7 e4 a6 c2 f6 Be7 f8R+ Kd7 f7 Rh5 a7 Bd8 Na3 Rh4 Nc4 Ba6 Bf4 c1Q e3 Ne7 g8R Nc8 Qd3 Qc2 Nh3 Bb6 Nf2 Rh3 Rc1 g3 Nd1 Bc5+ Ka5 b4 Rg1 h1Q Rg4 b3 Rh8 b2 f8R b1N Rgh4 Nc3 R8h5 Ne2 Rf7+ Ke8 Rc7 Kf8 d7 Kg8 d6 Bb5 Be5 Nf4 Be2 Ng6 d8R+ Nf8 Qd4 Nd7 Bf4 Rb8 a8Q Rb7 Qa6 Ne5 d7 Ba7 Bd3 Qb3 Bb1 Qc2 Ba2 Qhh2 Re8 Qh1 Re6 Nfg6 Rd6 Qhh2 Nd2+ Qc4 Qd3 Qe6 Qd4 Bf1 Nc4 Bg2 d8Q+ Qe8 Qd7 Qh1 Qdb5 Qc6 Qb1 Qh2 Qbd3 Qh1 Re7 Rd7 Reh7 Rd8 Rc7 Rd7 Rg4 Rh2 Rb7 Bc5 Rhg5 Nf7 Rf6 Rd8 Bb8 Ba7 Rc7 Rd7 Rd6 Ne5 Rf5 Rh6 Rfg5 Qh4 Rf5 Qf6 Rgf4 Rh1 Rh5 Qh8 Rfh4 Rh3
1Nb1R1QQ/R7/1Br2B1B/1R1pB1q1/n1kNPp2/r2n1b2/1B1P3b/3q1K1B w - - 0 1 illegal: No proof kernel
B2n2N1/1QbK4/B1nq2b1/2PqpN1R/BP2R1n1/rN1p1RN1/5Bk1/1r4B1 w - - 0 1 illegal: No possible last move
b2brQr1/8/k1qQ4/pnnKQpPP/Q2N4/3RQB1N/RB3q2/3Q1bN1 w - - 0 1 illegal: No possible last move
2n1R1Bq/3k2q1/6Rp/1N4R1/Qp3qnK/1r1b1PbR/1P4RB/1QrNR2N w - - 0 1 illegal: No possible last move
1rq4n/3QN1q1/N4QP1/2BP1rRK/2BRb3/1Np1p2N/Nk5n/b2Q2nN w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d6 Kf7 Ke2 c5 Kf3 h5 Ra5 e5 d4 c4 b4 h4 Kg4 h3 f4 e4 d7 a6 f6 Ke6 f5+ Kd5 b6+ Bc5 f7 c3 f8N e3 b5 h2 b7 Rh3 b6 Rf3 f6 Rf2 f7 Nh6+ Kh5 Re2 g4 Kc4 Ng6 Qh8 f8Q Bb4 d8Q Nd7 b8N Nc5 b7 Ba3 Nf4 Nd3 Nc6 Ne1 b8N Nf3 Nd3 Bb2 Nf2 Bf5 Nb4 Nf7+ Qh6 Bd3 Qd7 Qc8 d5 Bf5 Ngh3 Be4 Ra4 Nh8 Rg1 h1N Rg2 Ng1 Nd2+ Kd4 Nb3+ Kc4 Nd4 Qg8 Qhd6 a5 N8a6 Qh7+ Qh6 Rb8 Rg3 Qe7 Qf6 Qf7+ g6 Qe7 g7 Qe5+ g5 Qe8+ g6 Qc8 Rg5 Ng3+ Kh4 Qb7 Ra1 a4 g8N Qc7 Qde6 Qg7 Ne7 a3 Nh1 a2 Nd3 Rf2 Qd7 Rf5 Ndb4+ Bd3 Be2 Nf1 Kh5 Nh2 Rb1 Ba1 Ba3 Bb2 Nc7 a1Q Bf1 Qa2 Nca6 Qb3 Na2 Qb7 Bc5 Ba1 Rb2 Qc8 Rd2 Qe8 Ne2 Bc2 Rd4+ Kb3 Nec1+ Kb2 Bc4 Qc8 Nb3 Be4
1n2Rr1k/1Nnbq3/R2N1PR1/2B2r2/1K1npBRB/Rp6/1bNQB1P1/2q5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kf7 a4 Kg7 d4 e5 Kd2 c5 Kc3 b5 a6 h5 f6+ Kh7 d6 c4 g6+ Kh6 d5 h4 f7 Kg7 d7 e4 a7 h3 f5 h2 a5 Bd6 f8B+ Kf6 a6 Ne7 g7 Bb7 g8R Qb6 d8N Rh5 Bf4 Bc8 Rg4 Nbc6 Nh3 Qb7 Ng5 Ba3 d6 Bc1 d7 Qb6 Nb7 Qc7 d8B Nb8 Na3 Bb2+ Kb4 c3 Be2 c2 Nf7 c1Q Nfd6 Bd7 Nc2 Rg5 Rf1 h1N Ra3 Ng3 Qd2 Rh5 Rff3 Rg5 Rfc3 Rh5 Rc6 Rg5 Kc5 b4 Kb5 b3 Kc4 Nh5 Kb4 Ng7 Rb6 Ne6 Rc6 Nd4 Rb6 Bb5 Rc6 Nd7 Rb6 Rc8 a8R Nb8 a7 Bc6 Nc4 Kf7 Ncd6+ Kg8 Raa6 Kh8 Ra3 Ng8 Raa6 Rh5 Bh4 Nf6 Ra3 Ne8 f6 Rd5 Rba6 Rf5 Be7 Nd7 Rb8 Qd8 a8R Nc7 Bf8 Qe8 Rg6 Qf7 Be7 Rf8 Re8 Ba4 Rac8 Nb8 Rg4 Ncb5 Rc3 Nc7 Rcg3 Bd7 Rg6 Re5 R3g4 Qe6 Nc8 Rf5 Bc5 Qf7 Ncd6 Qe7
N1N2nBR/4Rp2/R1Rq1k2/2PQb1r1/5q2/1NBbq2P/2N2RBp/r2K2n1 w - - 0 1 illegal: No proof kernel
1Q5R/4Np1P/n1Qr2pb/1KNBB1RQ/1P3q2/Q2Qq1Q1/bR6/kn3r1r w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Ke7 Ke2 c5 Kd3 a5 Kc4 g6 h4 a4 d4 a3 b4 a2 e6 Kf6 h6 Ba6 e7 Nd7 e8Q Bg7 e5+ Kf5 h5 Ke4 h7 Qh4 d6 Qf6 e6 Qh4 e7 Nb8 h6 Bb7 d5 Ra6 b6 Qf4 d7 Qe5 d8Q Qh2 d6 Qg2 d7 Qh2 Nf3 Bc8 b7 Qe5 Nbd2+ Ke3 Kb5 Qf6 Qa5 c4 d8Q c3 Rh5 c2 Bg2 Qg5+ Ne5 Be6 Bb2 c1Q Nb3 Bc8 Qc6 Nf6 e8Q Ne4 Rb1 a1R Qa3 Nd2 Bd5 Qf4 Rg5 Be6 Qh5 Bf8 Qcc7 Rd6 Nc6 Kd3 Ne7 Na6 Nc5+ Kc2 b8Q Qg1 Bd4 Qge3 Be5 Bg7 Rb3 Rf1 Qec6 Nb1 Rb2+ Kc1 Be4 Ba2 Bd5 Re8 h8R Bf8 h7 Bh6 Qdd7 Rd8 Bb3 Rdd1 Qdh3 R8d6 Bd5 Rh1 Qg3 Rdf1 Q7d7 Nd2 Rc2+ Kb1 Rb2+ Ka1 Qf5 Nb1 Qc2 Qef2 Qcd3 Q2e3
1BBnq2q/4p1rk/bN1qR2B/2Q5/Q1B1rR2/n1p3PB/b1PN4/3K1N1B w - - 0 1 legal: proof: e4 g5 f4 d5 fxg5 a5 exd5 a4 g4 a3 bxa3 Bg7 a4 Be5 a5 Bg3+ hxg3 Ra6 Bd3 Ra7 Bf1 Ra8 a4 Kf8 d4 Kg7 g6 b5 a6 h5 d6 f5 d5 c5 a7 b4 g5 f4 a5 f3 d7 c4 a6 c3 d6 b3 Qd4+ Nf6 Qc5 b2 Rh4 f2+ Kd1 Ng4 Nf3 Qg8 d8B Rh7 d7 Nh6 Bc7 Qh8 d8Q Nc6 Nbd2 b1Q Rf4 h4 Qe8 h3 Nh2 Nf7 Bb8 Ncd8 Qa4 Kg8 g7 Qb7 Bc4 Qb1 Nhf1 h2 Be6 h1B Bh3 Qb5 Rb1 Qc6 Rb6 Qf6 Rc6 Ne5 Re6 Kf7 g8B+ Kg7 g6 Bd5 Bf7 Ba2 Bg8 Kh6 g7 Nc4 Bf7 Qg6 g8B Rg7 Be8 Na3 Bd7 Bb7 Bc8 Qf6 Bc7 Rb8 a8N Kg6 a7 Ba6 Bd6 Rb4 Bb8 Re4 Nb6 Kh6 Bf7 Kh7 a8B Qh6 Re5 Qd6 Bc4 Rd4 Re3 Qe8 Bh1 Re4 Nh2 f1Q+ Re1 Qf2 Nf1 Qh2 Re3 Rd4 Re6 Re4 Bf5+ Kg8 Rh4 Qdc6 Nf3 Qg2 Bg5 Qd6+ N3d2 Qf2 Rf4 Qh2 Bg4 Qh4 Bh3 Qh8 Bh6 Kh7
N7/B1N1p3/2R2n2/bbKP2PN/1pq1QB2/R2q2R1/n1R3BR/kq1rrB2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 a4 b5 f4 h4 g4 h3 a6 c6 f6 b4 g6 h2 f7 Rh7 g7 Rh3 f5 Rh7 a7 Rh6 f6 Rg6 a5 Bd7 a6 Rg5 Na3 Re5 Qe2 Qe8 Nh3 Qd8 Qe4 c5+ Kc4 Re6 d4 Nc6 Nf4 Be8 Kb5 c4 Nh5 c3 Bf4+ Re5 g5 c2 Kc4 Rb8 a8B Na7 Bc6 Nb5 a7 Rb7 a8N Rd7 Rg1 h1Q Rg3 Qf3 Bb7 Nh6 g8R Bg7 f8R Nc3 f7 c1Q Rh8 Ng4 Rfg8 Qfd1 f8R Qb1 Rf5 Bf6 Rg6 Na2 Kb5 Qbb3 Rc1 Qe1 Rc2 Qeb1 Rh7 Qc7 Rhh6 Qcc3 Kb6 Rd8 Rh7 Qd3 Nb5+ Kd7 Nbc7 Kd6 Rgh6 Bb5 Rh8 Rd7 Rc8 Rd8 Rh7 Bg7 Rh6+ Nf6 Rh2 Kd7 d6 Re6 Kc5 Re5+ Nd5 Ke6 d7 Bh8 Be3 Bg7 Rff3 Bh8 Bf4 Bg7 Qh7 Re1 Rg6 Kf5 Rc6 Ke4 Ndc7 Ne8 Rc2 Be5 Rff2 Nf6 Rh2 Rf8 d8B Rd1 Nd5 Bc7 Ra6 Re1 Ra3 Ba5 Bb6 Rd8 Ba7 Qf3 Bh3 Kd3 Ndc7 Qe3 Bbg2 Rd6 Rf2 Kc3 Rh6 Qf3 Qe4 Qfd3 Bf1 Rd8 Bhg2 Rd6 Be2 Kb2 Bef1+ Ka1 Rc2 Re6 d5 Rd1 Qg6 Ree1 Qe4 Nh7 Rb6 Nf6 Rc6 Qbc4+
N6n/Q2rp1N1/7B/bN1p3r/2bPBQP1/4RqQ1/N1Nkq3/Kb1N1nR1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 hxg5 c4 exf5 c3 bxc3 Nf6 c4 Ng8 c5 Bg7 Nf3 Bh6 Ng1 Bf8 c4 Kf7 f4 h5 d4 a5 Kd2 d5 Kc2 a4 Kb2 h4 c6 h3 b6 h2 c5 Rh4 c7 Ra7 f6 Ke6 f7 Kf5 g6 Ke4 f5 Ra8 c6 Qd7 b7 Ra6 f6 Rh8 g7 Qg4 Na3 Bd7 c8N Rh7 c7 Rc6 Nh3 Rc5 Rg1 h1B Bh6 Qh4 Na7 Bc8 N7b5 Qg4 Nc2 Qe2 Ra3 Nc6 b8N Ne5 Na6 Ng6 Nb4 Ba6 c8N Nh8 Qa1 Rc7 Nb6 Rd7 Na2 Qf3 Rc3 a3+ Kb1 Qe2 Na8 Qf3 g4 Bg2 Bc4 Bf1 Rb3 Bd3 Rc3 Qe2 Nf2+ Kf3 Nd1 Ke4 Bf4 Nh6 g8Q Nf5 Bh6 Ne3 Rb3 Bg7 f8Q Nf1 f7 Be5 Qc3 Bf4 Ka1 Bc7 Qb8 Qf3 f8N Ba5 Ne6 Qe2 Qf7 Qf3 Nc1 a2 Qa7 Qe2 Ng7 Qf3 Nb4 Bb1 Nc2 Qe2 Qg3 Qf3 Bf4 Rh5 Bh6 Qe2 Nba3 Qf3 Be2 Bc4 Nb5 Nd2 Bf1 Qe2 Ra3 Qf3 Bg2 Nf1 Nb3 Kd3 Qff4 Qe3 Nc1+ Kd2 Qfc7 Qf4 Re3 Qf7 Be4 Qf3 Kb2 Bd3 Qcf4 a1Q+ Kb3 Qa4+ Kb2 Bc4 Na2 Qe2 Ka1 Qb3 Qf8 Qbd3 Qfb8 Qf3 Qbf4 Qde2
N1Krq1R1/2P2r2/Q2N2RB/n5R1/R1qRp1B1/4pr1Q/b3PN1R/3nb1k1 w - - 0 1 illegal: Other
3BNQ2/2PBqQb1/4nr2/1B2Rq2/p1n3K1/q2NPrB1/2bpQBR1/1B5k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kf3 Ke6 c4 Kf5 b4 a5 h4 d5 c6 g5 e6 d4 c5 a4 c7 d3 e7 f6 e8B Ne7 b6 Bg7 h6 Bb7+ c6 Rg8 c8B+ Qd7 h5 Ng6 h7 Qe6 h8B Nf8 h6 Ra5 b5 Nh7 Rh5 Ke5 Nc3 f5 Bcd7 f4 Bg6 Ra6 Be3 d2 Ne4 Ba8 b7 Qf7 b6 Qe7 Nh3 Rf8 Kg4 f3 Nf6 f2 Ne8 Rf3 Bb1 Nf8 h7 Ne6 Nf4 Qa3 c7 Nc6 b8Q Na5 b7 Nc4 Nd3+ Ke4 Qd8 Qe7 b8Q Qa3 Qf6 Qe7 Bh3 f1Q Qf7 Qh1 Bf2 Qh2 e3 Qhd6 Rh4 Qa3 Qe2 Rd6 Bf1 Bb7 Kh5+ g4 Rh3 g3 Kg4 g2 Rh5 Bh6 Be5 g1Q+ Beg3 Qh1 h8B Bg7 Ra5 Qh7 Qd8 Bf8 Bd4 Bg7 Bf6 Bh6 Bc2 Nf4 Qe1 Nb6 Ng7 Qe5 Qdf8 Rc6 Bd8 Rf6 Be2 Qee7 Ne8 Bg7 Rb5 Bd5 Rc5 Bb3 Rc1 Ne6 Bb1 R3f5 Nb2+ Bc2 Beb5 Nc4 Nd3 Rf3 Rh5 R3f5 Kh4 Kf3 Qe2+ Kg2 Kg4 Rf3 Re5 Qad6 Bh4 Kh2 Rg1 Qa3 Rg2+ Kh1 Bhg3 Qf5+
1n2bQ1Q/P2Rq2p/2r4n/1BB1r3/2P1R1qN/2N1pN2/1r2NK2/k1b1N1BN w - - 0 1 illegal: No possible last move
r1n3B1/N4R2/1Q3N1k/2n1b2q/bpr1N1R1/NPB3p1/R1n3PN/n3B1KB w - - 0 1 illegal: Other
b1Q5/2bBr1K1/2bk4/QBbN1p2/3Q1pP1/3R1B1r/Pn4Nn/BBB2R1q w - - 0 1 illegal: Other
1k1B3r/3nB1pN/r1r2B1b/1N1Pb3/1R1N4/1RB2NPQ/1q1n2pR/rB5K w - - 0 1 illegal: Other
2BNQnR1/1RQ1R1pk/2P2B1B/1Rb1b3/1PNp2r1/3q1r2/R1K1b1n1/b3R3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 f4 a5 b4 d5 c4 e5 h4 a4 h6 a3 h5 e4 h7 e3+ Kc2 a2 f6 e2 c6 e1B b6 d4 c5 Bh4 b7 Ra6 c7 Bg3 h6 Kg6 f5+ Kf7 c6 Bh2 Nf3 Ne7 Ne5+ Ke8 Na3 Bd7 c8Q Rg8 h8R Be6 h7 Nd5 f7+ Ke7 f6+ Kd6 Qe1 Rb6 Bh6 Nd7 b8R Nc7 Rb7 Qe7 Bh3 Bg4 Nac4+ Ke6 Qe2 Kf5 Rhe1 Ne6 Qc7 Qc5 Qe3 Be7 f8B Qb5 f7 Bc5 Be7 Rf8 Bf6 Nf4 Rg8 Ng2 h8R Ra6 Rh7 Ra3 Qe2 Re8 f8R Rf3 Nf7 Kg6 Nd8 Re4 Re8 Be5 Re7 Nf8 Rhh8 Bh5 Bc8 Qa6 Bf4 Bg4 Rh5 Qb5 Bh6 Kh7 Rab1 a1B Rb2 Be6 Ra2 Rg4 Na5 Bc4 Qe3 Be2 Nc4 Bh2 Qe6 Qa6 Qed7 Bhd6 Rd5 Be5 Qe8 Bb6 Rb5 Bc5 Rc1 Qa3 Re1 Qd3+
1Kr1BQQ1/4p2n/Pb1q4/bRb1P1p1/2QNN1N1/2R3B1/2N2br1/NN1n3k w - - 0 1 illegal: Other
K1R4B/1P1b2nR/B1p2q2/1n3Q2/1p2R2B/1RPr4/k2rbN2/NNBRnn2 w - - 0 1 illegal: No proof kernel
1qBK1Q1r/QpN2n2/Bb1n4/n4B2/p1BB1R1P/3Rn3/1B2kP2/r1Qb3N w - - 0 1 illegal: No proof kernel
1KQ5/p5N1/6QB/2qPNRn1/rQb1br1k/p2RP3/RQ1n2b1/bQQ2B2 w - - 0 1 illegal: Other
q1Qr1qR1/1nN3r1/7N/1nbB1pB1/3BNp2/k2q1P2/2QNN1rP/N1R3K1 w - - 0 1 illegal: Other
2qBq3/3pn3/2BPr1nq/N1R1BBPb/1Q2R2b/K1R1p3/1N1Q2B1/4bBk1 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 Ra7 c3 Rb7 c4 Rb5 cxb5 Bb7 Qa4 Ba6 Qd1 Bc8 f4 Kf7 a4 c5 g4 h5 d4 e5 Kd2 h4 Kc2 c4 Kb2 b3 b6 h3 f6 Kg6 b7 h2 d5 e4 f7 Qc7 f5+ Kg7 f6+ Kg6 a6 Nc6 b8B Ne5 a7 Bd6 f8Q Nh6 a8B Qa5 f7 Rh7 Bc6 Qc5 a5 Qf2+ Ne2 Rg7 a6 Bb7 a7 Qb6 a8B Nf5 Ra5 Bb4 Qd2 Qe3 Na3 Ne7 Nd4 Rh7 Bd6 Rh6 Rc5 Ba5 Rg1 h1Q Rg3 Qh5 Qb8 Bb4 f8R c3+ Kb1 c2+ Kb2 Ba6 Re8 Be2 Nc4 Bc3+ Ka3 b2 Bab7 b1Q Nb3 Qh3 Bb2 c1B Nba5 Qc2 Bc7 Qh5 d6 Bf3 Qd3 Be1 Bd8 Bcd2 Rh3 Bh4 Bd4 Be2 Nb2 Bde1 Rg3 Qf4 Qd2 Qc4 Rd3 e3 Rc3 Qa6 Ba8 Qc8 Qb4 Qf7 Rf8 Qe8 Rf4 Rh7 Bab7 Qh6 Re4 Rf7 Ba8 Rf6 Bab7 Re6 Ba8 Kf7 g6+ Kf6 g7 Kg5 g8B Bf3 Bh7 Bd1 Bf5 Ng6 Ree5 Kf4 g5 Kg3 Re4 Bh5 Be5+ Kf3 Rf4+ Kg3 Bcg2 Kh2 Bac6 Kg1 Rfc4 Qhf8 Re4 Qh6
R5R1/nK1B1Qq1/qp1BQ1r1/1P3BpB/1b5k/3NR1bB/q2r1NP1/1b2B3 w - - 1 2 legal: proof: f4 d5 a4 g5 c4 e5 cxd5 b6 fxe5 Nc6 h4 Bd6 a5 Qf6 a6 Bf8 h5 Qg6 hxg6 Nd8 Ra5 Be6 Ra1 Nb7 axb7 Bc8 Kf2 Ke7 Kf3 f5 b8B c5 e4 a5 d4 h5 b4 f4 d6+ Ke6 b5 h4 d7 c4 d8Q h3 g7 a4 d5+ Kf7 d6 Kg6 d7 Kh5 e6 a3 e7 h2 e8B+ Kh4 e5 a2 Ke4 c3 Kd5 f3 Kc6 c2 e6 f2 e7 Nh6 g8B Ba6 Qe2 Nf5 Nd2 Ng3 Ne4 Rh5 Bd2 c1B Be6 Nf5 Be1 Bf4 Bd6 Bc8 Qc7 Rh6 d8R Bg3 B8d7 Rg6 e8B Ra7 Qb7 Nd4+ Kc7 Ra5 Nh3 Nc6 Nf4 Na7 Bh3 Ra6 Rg1 h1Q Nd3 Ra4 Qd5 Rd4 Qf7 Bb7 Ra8 Be7 Rc1 a1Q Qea2 Qb1 Qae6 Qa2 Be2 f1Q Nef2 Bd5 Beg4 Be4 Bf5 Qfe2 Rf1 Qeb2 Rc3 Rd5 Ra3 Qg7 Kb7 Qg1 Nb2 Bb1 Re3 Rd2 Nbd3 Rh6 Qg8 Qh1 Bh5 Rg6 Qgf7 Qg1 Nh1 Bf8 Rff3 Qf1 Nhf2 Qe2 Rf4+ Qg4 Ra4 Be7 Ra3 Qa4 Rc3 Qa5 Rcc8 Q5a3 Rg8 Bf8 Bb8 Bb4 Bd6 Qa6+
1k2nq1r/1Np2BBn/Rp6/2RN4/K1PR2b1/1q1Q1N2/R2BNqP1/3bbN2 w - - 0 1 illegal: No possible last move
1n4r1/Q1N4Q/1pRbPB2/qq2rR2/B3pQ1q/1P1n3Q/1rR2QKQ/k2N4 w - - 0 1 illegal: No proof kernel
6Bk/3n4/2Qp1q2/1Kb1r3/NNnrqBR1/1RRNN2P/q1NP1p2/1Q1r3N w - - 0 1 legal: proof: g4 h5 gxh5 e5 c4 b5 cxb5 e4 b6 d6 a4 e3 b4 Qd7 a5 Rh7 a6 Ke7 b5 Bb7 axb7 Rh8 fxe3 Qd8 e4 Kd7 e5 Ke8 e4 a5 Ke2 g5 Kd3 c5 Kc4 f5 h3 Kf7 h6 a4 e6+ Kf6 h7 Kg7 e7 a3 e8N+ Kh6 e5 f4 e6 f3 e7 g4 Nf6 Kg7 e8Q g3 Bb2 a2 Nc3 g2 Ng4 f2 Ne3 Qd7 Na4+ Nf6 Ne2 g1R Be5 Rg8 h8N Ra6 Bf4 Kh7 Rc1 a1Q Ng6 Nc6 b8R Rg3 b7 Qe5 b6 Qg7 Rc3 Na5+ Kb5 Nd7 Qb1 Qgf6 Rg1 Rg4 Ng3 Bh6 Bc4 Qe4 Ne5 R8g5 Bg8+ Kh8 Nd3 Nc4 Nh1 Re5 Qc8 Rh4 Rg4 Bg7 Qc6 Bh6 Nab2 Ra1 Na4 Bg7 Rc8 Bh6 b8N Bg7 b7 Bh6 Qb4 Rd1 Na6 Bg7 b8N Bh6 Rb3 Bg5 Nf1 Bh6 Bh2 Be3 Bf4 Nb2 Qa3 Rd5 Be5 Rh6 Qb7 Rh5 Bf4 Rhe5 Qa1 Bd4 Nc6 Be3 Nd4 c4+ Rc5 c3 Qb1 c2 Qc6 c1Q Nab4 Qc2 Qc1 Qb1 Ndc2 Qa2 Qb1 Bd4 Ka6 Be3 Rcc3 Bc5 Kb5 Nc4 Nfe3 Rd4
2b1KbBq/nB1p1Rq1/1p5Q/2N1N3/BP2b2B/kq1B2rR/2nP3R/N4R2 w - - 0 2 legal: proof: h4 a5 e4 g5 hxg5 f5 exf5 a4 c3 a3 bxa3 Nh6 a4 Ng8 a5 Ra6 Nh3 Rb6 Ng1 Rb4 cxb4 Bg7 Nf3 Bh6 Ng1 Bf8 Ke2 h5 Kd3 c5 Kc4 e5 Kd5 Ke7 g4 h4 a4 h3 f4 b6 g6 c4 g5 c3 f6+ Ke8 a6 h2 f7+ Ke7 a5 c2 f5 e4 a7 e3 a8B e2 a6 e1Q a7 Bh6 f8N Bg7 f6+ Ke8 Kd6 Qh4 Ne6 Rh7 Bd3 Bh8 g7 Rh6 g6 Nc6 Bb2 c1Q Bb7 Qe1 a8B Qc2 Na3 Na7 Nc5 Qe3 Nf3 Qf4+ Ne5 Qf2 Qh5 Qg1 Rf1 Ne7 g8B Nd5 g7+ Rg6 Qh6 Qb3 Nc2 Rg3 Na1 Ne3 Bc6 Qg2 Ba4 Nc2 Bb7 Qg1 Bd4 Qg2 Bf2 Qg1 Rd1 Qg2 Rhf1 h1B Rde1 Qg1 Re2 Bf3 Be1 Be4 Rh2 Qd4+ Bbd5 Qdc3 Bb7 Qe7+ Kc7 Qef7 Kd6 Kd8 Bf2 Qe8 f7 Qcb2 f8R Q2c3 Be6 Qcb2 g8R Bg7 Rf7 Bf8+ Re7 Qf7 Rh8 Qg7 Bg8 Q2c3 Qe6 Qcb2 R8h3 Qh8 Qh6 Q2c3 Ng4 Qcg7 Ne5 Rg4 Bh4 Rg3 Bba6 Bcb7 B4b5 Kc8 Bc6 Kb8 Bcb5 Ka8 Kc7 Bc8 Kd8 Kb8 Ke8 Kc7 Ng6 Rg2 Ref7 Rg3 Bbc4 Kc6 Be6 Qc4 Bb7+ Kb5 Bed5 Qhh7 Ne5 Qhh8 Ncb3 Ka4 Bdc6+ Ka3 Ba4 Qd5 Nc5 Qb3
1B1N3B/R1b3bR/3KPbRn/RrN2bB1/2p1p1BN/1bn1PQ2/q6k/1B6 w - - 0 1 illegal: No proof kernel
1b1BRB2/2Qp1kpB/b1bP2RB/P4Bn1/1BqN4/rQ5N/3N1b1r/3Kb3 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Nc6 c3 Na7 c4 Nb5 cxb5 Ba6 Be2 Bb7 Bf1 Bc8 h4 c5 f4 e5 d4 b3 a4 e4 b6 b2 b7 e3 b8B e2 h6 c4 d5 c3 f6 c2 f5 Ba6 f7+ Ke7 h7 Nf6 h5 Ne8 h6 Bc8 a6 Nf6 a7 Qb6 a5 Qe6 Bc7 Rb8 a8B Qd6 Nh3 Qf4 Nd2 b1B Bd8+ Kd6 Rg1 Ne8 f6 Bb7 Rg6 Rg8 h8N Qc4 h7 Be7 f8B Ke5 f7 Ba3 Bb4 Rc8 f8B Bc6 Nf7+ Kf5 h8Q Nc7 Bg2 Ne6 Ne5 Ng5 Nef3 Ba2 Qh4 Rh8 Qg3 Bb2 Qd6 Bd4 Qc7 Ba7 d6 Bb8 Nd4+ Ke5 Bb2 c1B Be4 Bb1 Bb7 Bd3 Bf5 Rh4 Qb3 Kd5 Ne4 Be3 Bc1 Bf2+ Kd2 e1B+ Kd1 Rh6 Ra2 Bf1 Re2 Rh7 Nd2 Rh4 Ng1 Rh2 Re3 Bd3 Nh3 Bf1 Bde7 Re8 Bd8 Re4 Ba6 Rg4 Re8 Rg3 Qb2 Ra3 Bb5 Qc3 Bbd3 Qc5 Bc2 Ba6 Qb3+ Qc4 Nb1 Nf3 Bh6 Ng5 Nd2 Nf7 Rg4 Ba7 Bh7 Bb8 Rg6 Ng5 Bf5 Ne6 Rg3 Ke5 Re7 Kf6 Re8+ Kf7 Rg6 Ng5
2N1Bk2/3R1N1n/2rNB2r/R3BKp1/5B1n/p1qnNQ2/P2b2BP/1nR2n2 w - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 c5 gxh5 c4 e4 c3 f4 b6 f5 Ba6 bxc3 Be2 c4 Bd3 c5 Bb5 Qd3 Bc4 Qd1 Be6 fxe6 Qe7 Qd5 Qf6 Qd1 Qd8 Kd2 a5 Ke3 g5 c4 d5 c6 f5 e7 a4 c5 a3 c7 b5 c8N b4 c6 b3 h6 b2 c7 Ra6 h7 Ra4 Bg2 Ra6 Nc3 b1N Nf3 Kf7 e8R Bd6 e6+ Kg7 e5 Rb6 e7 Bb4 e6 Nc6 Ne5 Nf6 Nf7 Ne5 Qf3 Rc6 Nd1 f4+ Kd4 Ng6 Ne3 Ba5 Rd1 Bd2 Ncd6 Qa8 c8N Qa5 Rd8 Qc7 e8B Kf8 Rd7 Qa5 Kd3 d4 Ra7 Qb4 Ra5 Qb2 Bd7 Qc3+ Ke2 d3+ Kf2 Rg8 h8B Nh7 Be5 Rh8 e7+ Kg8 e8B Kf8 Qe2 f3 Kg3 f2 Kg4 f1N Kf5 Nf6 Nd5 Rh6 Be6 Nh7 Qe4 Be3 Qf3 d2 Re1 Bf4 Ne3 d1N Re2 Nb2 Rd2 Bg3 Rd4 Be1 Rd1 Nbd2 Rb1 Nd3 Rb7 Nb1 Rd7 Nc5 Bd2 Nd3 Rc1 Nc5 Nec4 Nd3 Bdf4 Bd2 Ne3 Nh4+
3Q2N1/4Nb2/RQ1Rr1p1/2qNP1N1/rB1nr2N/p5P1/k1N1BQK1/n3n1n1 w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 h4 g6 h5 d3 h6 Bg7 hxg7 Ba6 cxd3 Nd7 d4 Bc8 d5 Nb8 Kf2 Ke7 b4 a5 d4 h5 e4 f5 g3 c5 d6+ Ke6 d7 f4 b6 f3 b5 c4 b7 c3 b6 a4 Rh2 h4 Qc2 h3 Ba3 Qe7 d8Q Qc5 Bb4 Na6 b8N Ne7 g8N Nf5 b7 Rh4 Be2 Bd7 Ra2 Be8 Na3 Bf7 Nc6 Rg4 Kf1 f2 b8Q Rh4 Rh1 h2 Kg2 f1R Qbb6 Re1 Nf3 Rf4 Qb2 c2 Nh4 c1N Nc2 Nd3 Rf1 h1N Nce7+ Qd6 Ra3 Nhf2 Rh1 Nh3 Rf1 Rb1 Rd1 Ng1 Rd2 Nac5 Ra1 Re1 Ra3 Be8 d5+ Kf7 Qd4 Nb3 Qf2 Qc5 d6 Nfd4 d7 Na1 e6+ Kf8 Qdc7 Bf7 d8N Ra6 e5 Kg7 Bf1 Ree4 Be2 Ne1+ Kh2 Be8 Nf7 Kf8 Ng5 Bf7 Qd8+ Kg7 Rf3 a3 Rd1 Rg4 Rf6 Rgf4 Nc6 Ra4 e7 Rf5 Rd6 Rf6 e8N+ Kf8 Nc7+ Kg7 Nd5 Re6 Qdf6+ Kf8 Nce7 Ke8 Qb7 Kf8 Ra6 Ke8 Qa8+ Kd7 Nb6+ Kc7 Qd8+ Kb7 Ned5 Kc6 Nc8+ Qb6 Rd3 Kb5 Nce7 Kc4 Rd2+ Kb3 Rd1 Nef3+ Kg2 Qc5 Rd3+ Ka2 Qb6 Be8 Qf8 Bf7 Qfd8 Ne1+ Kf1 Rg4 Ndf6 Nb5 Rd6 Nd4 Nfd5 Nd3 Kg2 Re4 Kh1 Ne1 Kh2 Nd3 Kg2 Ne1+
2BqNK2/2pn1NBB/1RN2Brb/Rn3pP1/2B1kP2/2nR4/4r3/n2qQ1R1 w - - 0 1 legal: proof: b4 e5 c4 b5 cxb5 g5 a4 e4 h4 d6 hxg5 e3 a5 Nd7 b6 Nh6 a6 Nf5 b5 Bb7 axb7 Nh6 dxe3 Ng8 e4 Nb8 e5 Qc8 Bf4 Qd7 Bc1 Qd8 g6 Kd7 Kd2 Ke6 Kc3 Kf5 Kc4 a5 Kd5 h5 f4 f6 e6 h4 e7 h3 e8B h2 g7 a4 Nc3 a3 Bb2 a2 Ne4 Na6 b8R Qd7 b7 Nh6 g8B Ra7 b6 Qh7 Bd7+ Kg6 Ke6 d5 g4 f5 g5 d4 Bc8 d3 Nf3 d2 Nd6 Be7 e4 Nf7 e5 Qh3 Nd4 Qg2 Bc4 Rh5 Nc6 Rh6 Bh7+ Kg7+ Kd7 Bf8 Ke8 Nc5 e6+ Rf6 e7 Qd5 Rf1 h1Q Be5 Qhf3 Qe1 d1N Rg1 Ra3 Ra8 Re3 b8R Nc3 Rd1 a1N Rd3 Qd1 b7 Re2 Ra5 Qd4 Rba8 Qd5 b8B Qd4 Ba7 Qd5 Bg8 Kg6 Bb6 Bh6 Bh7+ Kh5 Rb8 Rg6 Bg7 Qd4 Kf8 Qf6 e8N Qd8 Ne4 Nd6 Rb7 Ndb5 Nd6 Re5 Nf7 Nd7+ Kg8 Re2 Bd4 Rd2 Rb6 Re2 Rf1 Kg4 Bf6 Re3 Rg1+ Kf3 Bd4 Ke4 Bf6 Nc5 Kf8 Re2 Ra2 Qb1 Ra8 Qd1 Ra5 Nd7+
r3NN2/Np1r1n2/3PpRq1/4P3/NKBn3k/1B1q2RB/1q3bQN/2R2qB1 w - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 a5 b4 Nc6 bxa5 Ne5 f4 Bd7 fxg5 Bc8 h4 Bf5 h5 Bg6 hxg6 Nc6 Rh2 Nb8 Rh6 Nf6 Rh1 Ng8 a4 f5 e4 c5 d4 h5 Kd2 c4 Kc3 h4 e5 h3 d6 h2 d5 f4 a6 f3 a7 f2 a5 Nd7 g7 Kf7 g6+ Ke8 g5 Nh6 g8B Nf7 a6 Qc8 g7 Nh6 g6 Rb8 a8N Nf5 a7 Rh3+ Qf3 Nd4 Be3 Rh6 Na3 Rh5 Qg2 Qc7 Nb5 Qd8 Rc1 Ne2+ Kb4 c3 Nb6 c2 a8N Nd4 Nf3 Nf6 Na4 Nh7 Na7 Ng5 Nc7+ Kd7 Bc4 f1Q Bg1 Nf7 Ne8 Ra8 Bh7 Rh4 g8B Bh6 g7 Be3 Be4 Bf2 Bed3 Rh7 Bf5+ Ne6 Bg4 Qd3 Bh3 Qg6 Rf1 c1Q Bb3 Qb2 Rc1 Qc7 Rf1 Qcc2 Rc1 Kd8 d7 Qcd3 Rc6 Nd4 Rf6 Nh8 Bge6 Nf7 g8R Rg7 Nd6+ Kc7 d8N Rh7 Beg4 Rg7 Ne6+ Kd7 Ne8 Rh7 Neg5+ e6 Bf5 Rg7 Nh7 Ke7 Nf8 Bg3 Be3 Bf2 Rc1 h1Q Nh2 Qhf1 Bfg4 Rh7 Be2 Qh6 Rg3 Qhg6 Nd7 Rg7 Nb8 Kf8 d6 Kg8 Nd7 Kh7 Rf4 Kh6 Nf8 Rh7 Rff3+ Kh5 Rf6+ Nf3 Bc5 Kh4 Bd4 Qdb1 Bc4 Qbd3 Be3 Nd4 Rg5 Bg3 Bg1 Bf2 Rg3 Ng5 Bg4 Rd7 Bh3 Nf7
qq3N2/B1n1B1Q1/PnkN2p1/K2n1N2/4B1np/4QNP1/1r2N3/1R2NrRb w - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 h4 a3 h5 g6 h6 Bg7 hxg7 Ra5 bxa3 Bd7 a4 Ra8 a5 Bc8 d4 Kd7 Kd2 e5 Kc3 c5 f4 h5 a4 b5 g3 h4 d6 e4 d5 e3 f6 e2 f5 e1Q+ Qd2 c4 Kb4 c3 a6 c2 f7 Ra7 f8B Nh6 g8N Qe3 f6 Qee8 f7 Bb7 a5 Qc7 Ne7 Ba8 Nf5 Qe5 Nf3 Qe2 Qe3 Ng4 Bg2 Qd3 Nbd2 Ne5 Rg1 Ng4 Ne1 Qe2 Ndf3 Qf1 Rb1 Rb7 Be7 Rf8 a7 Qf2 Bd2 c1N a6 Ne2 Bc3 Qd8 Bd4 Nc3 Bc5 Rb6 Ka5 b4 Bh1 Bc6 a8Q Nb5 Qb7+ Nc7 Bd4 b3 Bg2 Rb4 Ba7 Qb2 Bh1 Qe5 Bg2 b2 Bh1 Rg8 f8N+ Ke8 Bg2 Nd7 Bh1 Nb6 d7+ Kf7 Bg2 Qa8 d8N+ Ke8 Nde6 Rg7 Ned4 Rf7 Ne2 Qd6 Rc1 b1N Rd1 Nc3 Rb1 Qf4 d6 Rb2 Bh1 Rf6 Bg2 N3d5 d7+ Kf7 d8N+ Ke8 Nf7 Qe5 Nh7 Kd7 N7d6 Rf7 N3d4 Qeh8 Be4 Qhb8 Ndf3 Ba4 Qc8+ Kc6 Qh8 Bc2 Nf8 Bd3 Nc1 Bf1 Ne2 Bg2 Qg7 Rf6 Nh6 Rf4 Nhf5 Bh1 Nd2 Rf2 Ndf3 Rf1
2rqBq2/p1BpR2K/3bNr2/8/N2PN2Q/k1NnR3/P1qN2q1/Qb1R3N w - - 0 2 legal: proof: f4 f5 e4 c5 exf5 g5 fxg5 c4 h4 c3 bxc3 Qa5 c4 Qc7 c5 Qd8 g4 Nc6 g6 Qb6 g7 Qb2 g5 Ne5 h5 Ng6 hxg6 Qb6 Kf2 Qc7 Ke1 Qd8 Ke2 b5 Kd3 h5 Ke4 e5 c4 Ke7 d4 b4 f6+ Ke6 f7 h4 c6 Kd6 Kf5 e4 c5+ Kd5 c7 b3 c6 e3 Bc4+ Kd6 Nh3 b2 Nd2 e2 Re1 Rh6 Nf2 h3 Nh1 Nf6 g8N h2 g7 Qe8 g6 Be7 f8N Ne4 Ne6 b1Q Nf6 Rh3 g8N Re3 g7 Qb4 Nd5 Bf6 Nc3 Qf8 Kg6 Qa4 Kh7 Be7 Nf6 Nf2 g8Q Ba6 c8R Rf3 c7 Kc6 Nfe4 Qc2 Qg5 Rf6 Qh4 Nd3 Re8 Bd6 Re7 Rc8 Ba3 Kb6 Bc5+ Ka5 Bb6+ Kb4 Rc1 Ra8 c8N Ka3 Bc7 Rb8 Nb6 Rc8 Nba4 Qd8 Rg1 e1Q Rg3 Qf2 Re3 Qf3 Qg1 Bb7 Rd1 Ba8 Nhg3 h1Q Bd5 Qhg2 Nh1 Rg6 Bb3 Qff8 Qf1 Rf6 Bc4 Nc5 Be2 Nd3 Bh5 Bd5 Be8 Bb7 N4g5 Bf3 Nge4 Bg4 Qg1 Bf5+ Bg6 Qf2 Neg3 Nf4 Ra1 Qc1 Qd1 Bc2 Nge4 Nd3 Be8 Qg2 Qf1 Qb2 Qb1 Qb3 Qb2+ Kb4 Rf1 Bb1 Qa1 Qc2 Rd1 Ka3
5Nk1/7r/1pp1K2R/r1n1n3/B1RRqqrP/2B1rBBN/2P1bR1N/4R1Q1 w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 Qh4 g4 Qf6 gxh5 Qd8 e4 Nh6 e6 Ng8 f3 Ke7 f4 Kf6 e7 Ke6 Kd2 Kd6 e5+ Kd5 Ke1+ Kc6 e6 g6 Ba6 Bg7 Bf1 Be5 fxe5 Rh6 Qd2 Rh7 Qd1 Rh8 Kf2 f5 Ke3 d5 Kf4 d4 e8B+ Kd5 a4 d3 e7 Ke6 a6 b6 a5 d2 h6 Bb7 h7 Bd5 a7 Bb7 a6 Nd7 Be2 Nh6 Bf3 Ng4 Nh3 Ngf6 Qg1 d1R Ra4 Rg8 h8B Qb8 Rc4 Re1 Nd2 Be4 Nf1 Nc5 Ba4 Kf7 e8R c6 Rd8 Bd3 Rdd4 Qe8 e6+ Kf8 Bb2 Re3 Bc3 Ng4 Be5 Rh8 e7+ Kg8 Kg5 Rh6 Bg3 Ne5 Kf6 f4 Nf2 Be2 Nh3 Rc8 a8N Rh7 a7 g5 Nc7 g4 a8R Rb8 Ra5 Ra8 Ne6 Ra7 Nf8 Ra6 Bge1 g3 Rb5 g2 Bg3 Ra5 Rb1 Qd7 e8R Qd5 Re1 Qe4 Re7 Nb3 Rf7 Nc5 Bg4 f3 Bh5 f2 Bf3 Nb3 Ke6 Bd3 Nd2 f1Q Rf6 Qf2 Nf1 Qd2 Rh6 Qc1 Re2 Qd2 Rf2 Be2 Ng5 Qc1 h4 Qd2 Nh2 Qc1 Qf1 g1R Nh3 Rg2 Qg1 Qd2 Bf4 Rg4 Bg3 Qc1 Qg2 Qd2 Re1 Qc1 Qg1 Qd2 Rd8 Qdd4 Rd5 Qf4 Rd7 Qde4 Rdd4 Nc5+
1RQ1Q1nN/1p1q2QN/n2K4/B1n2k2/1bN1rnR1/1b5q/pP3P2/1N1N1BN1 w - - 0 1 illegal: No possible last move, all moves rejected
B4b2/pn1br3/2pN2PN/B1Pr3r/1N3RN1/R2Q4/B3bNb1/BR1n1k1K w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Nf6 g4 Rg8 h5 Ke7 g6 Ke8 g5 Bf8 h6 Rh8 Bh3 Ng8 Bg2 Qf6 Bf1 Qg7 hxg7 Be7 Qd4 Ba3 Qd1 Bf8 Kf2 Ke7 Kg2 Ke6 b4 Kf5 c4 Kg4 e6 d5 b6 f5 c5 h5 b5 d4 b7 f4 e7 h4 e8N d3 b6 d2 Bb2 Rh5 Ra3 Rh6 Nf6+ Kf5 e4+ Ke6 e5 Kf5 e6 Ne7 g8B Nbc6 b8B Rh5 g7 Nd5 g6 Bd7 b7 Rg5+ Ng4 Ke4 e7 Nc3 e8N Nd8 Ba1 Rd5 Nh3 f3+ Kh2 f2 Nd6+ Kd4 Bg2 f1B Nhf2 h3 Be4 Be2 Rf1 Rh5 Kh1 h2 Qc2 d1R Ba2 Re1 g8N Rd5 N4f6 Ke3 Nh6 Rh5 Bg2 Rd1 Bc6 Rdd5 Nf6g4+ Kf3 Ne3 Bh3 Qd3 Nd1 Nc3 Kg3 Bc4 Bd7 Na2 Bh3 Nb4 Kf3 Bd7 c6 Bc8 Bd7 Bc7 Kg3 b8R Nb7 Ba5 Kf3 Nfg4+ Kg3 Ba2 Kh3 Rf7 Kg3 Nf6 Kf2 Neg4+ Kf1 Nf2 Ke1 Kg2 h1B+ Kg1 Bg2 Nf6g4 Bh3 Kh1 Kf1 Rf4 Nd8 Rb5 Rb8 Ba6 Nb7 Rb6 Re8 Rb5 Nd8 Bb7 Re7 Ba8 Nb7 Nc2 Bc8 Rb1 Bd7 Nb4 Bg2#
1nNKb2b/6kp/1r2BN2/5R2/1NNP2p1/NQQ1R3/3rN1PQ/2B1nnnr w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 g4 c4 Qd6 cxd5 Qa6 Ne2 Qh6 Ng1 Qg5 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 Ke2 Kf7 Kd3 c5 Ke4 a5 Ke5 a4 f4 a3 b4 a2 d4 c4 b6 c3 b7 c2 g6+ Kg7 b5 e6 b6 Ra5 Na3 Ra8 d6 Ra6 d7 Nf6 d8N Ne4 f6+ Kg8 f5 Nc3 f7+ Kg7 Rh5 Rg8 f6+ Kh8 Rf5 Be7 f8N Bd7 f7 Bc6 Qd2 Ra4 Bc4 Ra8 Nd7 Ne4 f8N Bd5 Nc6 Bb4 Nf6 Kg7 N8d7 Ng3 Ne2 Bf8 Qc3 Nf1 Nb4 Bc6 Rb1 a1R Rb3 Be7 Bd5 Bd8 Kd6 e5 Be6 e4 Ne5 e3 Nec4 Be7+ Kc7 Be8 Kc8 Bd6 Kd8 Be5 Nb1 R8a2 Nba3 Nd7 b8N Rb1 N8c6 Nb8 b7 Rba1 Nf4 e2 Na7 e1N Nc8 Rh8 Ne2 Rf8 Bf4 c1N Be3 Rd2 Bg5 Na6 b8Q Rf7 Qd6 Rb7 Bf4 Nb8 Be3 Bf4 Qe5 Bg5 Qh2 Rb6 Bf4 Ncd3 Be3 Nf2 Bf4 Nh3 Be3 Kh6 g7 Kg6 Bf4 Ng1 Be3 Bh6 g8Q+ Bg7 Bf4 Rdd1 Bc1 Rd2 Qb2 Rb1 Re3 Ra1 Qb3 Rb1 Qf8 Bh8 Qc5 Kg7 Qc6 Rd3 Qf3 Rd1 Qc3 Rd2 Qd5 Ra1 Qb5 Rb1 Qa4 Ra1 Qab3 Nc2 Rg3 Nh3 Rf2 Nfe3 Bb2 Rh1 Bc1 Ne1 Rf5 Nf1 Re3 Ng1
1N1R1N1n/1k6/2rB1BBn/b2p1p1P/R3n1RN/3R3r/1KrR1PQr/3b3B w - - 0 1 legal: proof: e4 b5 d4 d5 g4 c5 dxc5 h5 gxh5 b4 e5 Qd6 exd6 b3 axb3 Bf5 b4 Be6 b5 Bc8 h6 Kd8 Kd2 a5 Kc3 g5 b4 e5 h4 f6 c6 e4 c7+ Kd7 h5 e3 b6 Kc6 b5+ Kb7 h7 e2 d7 e1N Nd2 a4 Rh4 g4 Nh3 g3 Bg2 a3 Nf4 a2 Qg4 Ra7 Ba3 Ka8 Ne6 Ra4 b7+ Ka7 b6+ Ka6 Bh1 g2 Nf3 Nc6 b8R Nd4 b7 g1R Rd1 Bc5 Rd2 Bb6 Bd6 a1R Qg3 Nh6 d8B Nd3 Ra8+ Ba7 b8N+ Kb7 Rh3 Nf4 Nh4 R4a3+ Kb2 Rd3 c4 Ndf5 c5 Bb6 Ra4 Rg2 Qg4 Rh2 Qg2 Bd7 c8R Rc1 Re3 Ba5 c6+ Ka7 c7 Ng6 B8e7 Kb7 Rg8 Ng3 Bd8 Ne4 c8B+ Ka7 Rg3 Bb5 Bd7 f5 Bf6 Kb7 Be8 Rdc3 Bf7 Be2 Rg7 Rhc8 h8R R8c4 Rd8 Bd1 Nf8 Nh8 R7g4 Rc6 Bg6 Ra3 Rgd3 R1c5 Rdd4 Rah3 R4d3 Rc2+
2n3NQ/q1n1K1nN/q1q1B1p1/B7/RB1kBpPB/2r2r1B/Q4PnN/6R1 w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 d5 a4 d4 axb5 g6 h4 Nd7 h5 Bb7 h6 Bg7 hxg7 Bd5 exd5 Nb8 Kd2 Kd7 Kd3 f5 Kc4 h5 g4 a5 b4 e5 d6 Ke6 b6 h4 b7 h3 d7 f4 b5 h2 c6 e4 Kc5 Ke5 c4 d3 b6 a4 c7 d2 c8B e3 Nc3 e2 Ba3 e1N Qb1 d1Q Bb4 a3 Bh3 a2 Nd5 Qf3 Nf6 Nc6 b8B+ Qc7 d8B Qg3 b7 Nh6 g8N Qb3 Be6 Qa4 Nh7 Qa6 Bh4 Ng2 Qb3 Ke4 Nf3 Nf5 Rhg1 h1Q Nh2 Ng7 Qa4 Qf7 Kd6 Kd4 c5 Ne7+ c6 Ra7 Kd7 Nc8+ Kd8 Ra8 Bc7 Ra7 b8Q Rb7 Raf1 a1N Bca5 Nc2 c7 Na3 Ra1 Nb5 Qa2 Rb6 Bd5 Rc6 Be4 Rc3 Qa8 Ne7 c8B Nc7 Be6 Nc8 Qc2 Rf3 Ra4 Rc3 Qa2 Rf3 Ng5 Rh5 Nh7 Rc5 Ne7 Rcc3 Kd7 Nd6 Qh8 Nc8 Kd8 Nb5 Ng8 Qfa7 Ra1 Qc1 Rb1 Qc2 Rg1 Nc7 Kd7 Qce2 Kd8 Qec4 Kd7 Qcc6+ Kd8 Nd6 Ke7 Nc8+
n4K1B/1bq3R1/2NbB1NP/Q3p1n1/2p2Q1b/Pk1pQQBQ/3r4/r4RQ1 w - - 0 1 illegal: No possible last move
1n1NBRQ1/3QKr2/b1p2P2/3qn3/2nR2pN/BB3P1p/5BB1/1kN2rbB w - - 0 1 illegal: No possible last move
R4Bn1/B1NQ2K1/rPBn1pBb/2p4P/6rQ/2Rp2Nn/4q1B1/2Nbk2B w - - 0 1 illegal: No proof kernel
4R2N/2b1r1kp/KBnNR3/N1B2b2/Bp1Nn1p1/P2B4/1QPn3B/4qrR1 w - - 0 1 illegal: No proof kernel
1nn1N2N/2N1RBp1/1qQ2r1R/p1R1B3/6pb/kbrKR2b/1NB2P1P/3R4 w - - 0 1 illegal: Other
1QB1BBr1/BpK2BR1/8/2p2pr1/1bPPk1N1/Qbbq1n1Q/2B2RnN/8 w - - 0 1 legal: proof: e4 d5 exd5 a5 f4 g5 fxg5 Qd6 b4 Qd7 bxa5 Qd8 h4 Bd7 g4 Bc8 h5 Nd7 h6 Nb8 g6 Qd6 g5 Qa3 Ne2 Qb2 Ng1 Qg7 hxg7 Ra6 Bd3 Ra7 Bf1 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 a4 h5 c4 c5 d4 h4 a6 h3 a7 f6 a5 h2 a6 Nh6 g8B Ng4 g7 Nc6 g6 Nb4 Nd2 Nd3 Bh7 Nb4 g8B Nh6 g7 Nc6 Ndf3 Nd8 Ra2 Bh3 Rf2 Nhf7 Bh6 Bc8 Qb3 Rb8 a8Q Bh3 a7 Bc8 Nh3 Ne6 Rg1 h1Q Rg4 Qg1 Nh2 Qg3 Qf3 Kd7 d6 Nfg5+ Kd5 e4 Bf7 e3 g8B e2 Bc2 e1B Qd3 Nf3 Rg7 Bb4 Be8+ Kd8 Qa3 Bd7 Bgf7 Ba4 d7 Ke7 Bg2 Rc8 Qb8 Rg8 a8Q Bb3 Q8a4 Rd8 Qc6 Qg6 Qcc8 Qd3 Bf1 Neg5 Be2 Ne1 Bg4 Bc3 Rf5 Bb4 Nf2 Ngf3 Bh3 Ng2 Nfg4 Nfe1 Rf2 Nf3 Bf4 Bc3 Bc7 Bb4 Bb6 Bc3 Ba7 Bb4 Rg5 Bh6 Rg6 Bhd2 Rg7 Kf8 Kd6 Bdc3 Kc7 Ke7 Bg6+ Ke6 Bh5 Kf5 Bef7 Rdf8 d8B+ Ke4 Be7 Rd8 Bf8 Rd5 Be8 Ne5 Bhf7 Nf3 Nh6 Ke3 Qg4 Rg5 Qg3 Nf4 Bc8 f5 Qh3 Ke4 N6g4 Ng2
R2q2nK/1p1Q4/1rpbb1Pb/B7/1pN1N1P1/1n1B2N1/N1rBB1k1/4R1BR w - - 0 1 illegal: Other
Q1N1K3/1p2Pnrr/2RN4/B1Bkp2n/1b3QRR/Pp5B/R3n3/1RRbq3 w - - 0 1 illegal: Other
3Q3q/B4NBq/1PN4N/bN1Bn3/3B1Npp/rRR1p3/1Pn1rk2/2K2b1R w - - 0 1 illegal: No proof kernel
1rqr1Q1B/6BB/BP2n1R1/QbN2p1K/1b3pq1/1p4R1/1nRBP3/1B3N1k w - - 0 1 illegal: Other
1N1Nk3/6nP/Bp2rRq1/4P3/1b2NQpq/1N1QNn1b/2Rp1Br1/N1K4R w - - 0 1 illegal: No possible last move
1N1r2Nb/5p1N/qpPnQR2/pRrB2n1/P2R4/3Q1b2/1N2N1k1/2B1K1Nq w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 fxe5 Bf5 cxd5 Nh6 b4 Ng8 bxc5 Bc8 h4 Ke7 a4 a5 e4 g5 d4 g4 d6+ Ke6 h6 b6 h7 g3 d5+ Kd7 h5 g2 e6+ Ke8 h6 Nd7 e7 Ba6 e5 Qc8 Na3 Qc6 Rh5 Bd3 Nc4 Rd8 Nb2 Be2 Qd3 Qc7 Rb1 Rb8 Rf5 Qc8 Rf6 Bg4 Be2 Qd8 Bf3 Rc8 Be4 Nb8 Bf3 Kd7 e8N Rc6 e6+ Kc8 d7+ Kb7 d6 Bh5 e7 Bg6 Bd5 Qc8 d8R Bh5 d7 Be2 Rf5 Bd1 Nf6 Bg7 e8N Ne7 Ng8 Na6 Nef6 Nc7 Rf4 Nf5 Rd4 Nd6 Re8 Bf8 Re6 Bf3 d8N+ Ka7 Rde4 Qa6 Rd4 Ne4 Rd6 Ne8 Re6 Rc7 Nc6+ Kb7 Rd6 Rc8 Nb8+ Kc7 Re6 Bg7 c6 Rd8 Nfd7 N8d6 Nf8 Ng5 Rf6 Qb7 Nc4 Qc8 Rb5 Qa6 Nb2 Nc8 Ne6+ Kd6 Nf4+ Ke5 Nfe2 Nd6 Ne7 Rhe8 h8Q Rg8 h7 Rge8 Qf8 Bh8 Ng8 Re6 Rg6 Rf6 Qh6 Rf4 Rf6 Rf5 Nh3 Bg7 h8N g1Q+ Kd2 Qh1 Nhg1 Rf4 Ke1 Re4 Rdb4 Rc4 Qh3 Rc2 Rd4 Rc5 Qc8 Be4 Re6+ Kf5 Ng6 Kg4 Nf8 Bh8 Nh7 Kh4 Qd7 Kg4 Rf6+ Kh4 Nf4 Bf3 Qe6 Kg3 Ne2+ Kg2
1BQ3rB/N3np1Q/pBp2n2/BQ2Rb2/P1N1b2P/7q/K1k4B/r1q3RB w - - 0 1 illegal: No proof kernel
2bbk3/N1Q3qr/p1bB4/4B1Pr/1Q1N1p1Q/1B1R1P1p/1KR5/BnBB2r1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 d5 axb5 Nd7 d4 Nb6 dxc5 d4 Rh6 Bf5 Rh1 Nd5 exd5 Bc8 Kd2 h5 g4 e5 c4 f5 Kc2 a6 b4 f4 c6 h4 f3 e4 c7 e3 d6 h3 g6 e2 g5 e1R d7+ Ke7 c5 d3+ Kb2 d2 g7 Kf7 c6 Re5 b6 Rd5 b7 Ke7 b8B Ra5 b5 Rh7 b6 Rh4 b7 Nh6 g8B Ra3 Qb3 d1B Rh2 Ng4 Ne2 Rh5 Nd4 Rh4 Nc3 Rh6 Ncb5 Rh8 Na7 Ne5 Be2 Qe8 d8B+ Kd6 Bf6 Ra5 Ra3 Rh7 Qb4+ Rc5 Bh8 Ke7 Rd3 Ba4 Bb3 Qd7 Bed1 Ke8 Rc2 Be7 Bg7 Bd8 Bh8 Qe7 Bg7 Bg4 c8Q Qf8 c7 Bc6 Bf6 Qg7 Qf5 Ra5 c8Q Ra1 Qc7 Rh5 Qe4 Bc8 Qee1 Rh7 Qh4 Nc4+ Kc3 Na3 Kb2 Ba4 Qcc4 Rh5 Bbe5 Bc6 b8B Nb1 Bbd6 Rb8 Qcc5 Rb7 Qca5 Qh6 Bh8 Rh7 Qc7 Qg7 Bf6 Na3 Ne2 Qf7 Kc3 Be4 Bb2 Rb1 Bd4 Bef5 Bhe5 Bg4 Be3 Qg8 Nd4 Bgd7 Ba1 Bb5 Be2 Rg1 Bc1 Qg7 Bd1 Nb1+ Kb2 Bc6
B7/QR1Rq3/b2p1B2/1Q1r4/1b1Rn1kp/pKQPP1N1/3Q1b1r/Nr3Q1Q w - - 0 1 legal: proof: h4 e5 b4 g5 hxg5 b5 a4 e4 axb5 Na6 b6 e3 b7 Ke7 c4 Nh6 c5 Ng8 b5 Nb4 fxe3 Ke8 e4 Nd5 e5 Nb6 cxb6 Qe7 Rh4 Qf6 Rh1 Qd8 b8Q Ke7 g4 Ke6 e3 c5 d3 f5 Kd2 h5 Kc3 a5 g6 d6 b7 c4 g7 f4 g5 Kf5 e6 a4 b6 f3 e7 f2 e8Q Qe7 g6 Qc7 Qf7+ Kg5 Ne2 Qc5 Rh4 Qd5 Nd2 Rh6 Rd4 h4 Nb3 Bh3 Qd2 Qc5 Bb2 Qe5 Ng3 Rh5 Bg2 f1R Qa7 Nf6 b8Q Rb1 g8Q Qe7 b7 Bc8 Qh8 Bh6 g7 Ne4+ Kb4 c3 g8Q+ Bg7 Qf1 c2 Qd5+ Kg4 Ra2 c1B Na1 Be5 Qb5 Qf8 Qc7 Qd8 b8R Ba6 Rb7 Qe7 Qcc3 a3 Kb3 Rf8 Rd7 Rf2 Qh1 Re2 Qf8 Rg5 Qf2 Bf4 Qff1 Rd5 Qdd1 Bd2 Qdc2 Be1 Q2d2 Ng5 Be4 Rh2 Bg2 Re5 Ba8 Rd5 Nc2 Ne4 Ra1 Rc1 Rb1 Be5 Na1 Bf2 Ra4 Bd4 Rc4 Bb6 Rd4 Bc5 Qcc2 Kg5 Qbb6 Bb4 Rc4 Rf5 Ka4 Kg4 Bf6 Rb5 Rd4 Rg5 Qcc3 Bc5 Rb5 Rd1 Kb3 Bb4 Qbc5 Re1 Rbb7 Rd5 Qb5 Rb1+
3BrrN1/nN1Np3/2n2RNp/2b3k1/Pp1r3R/5RBK/qQ1RP3/3nR2B w - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 a5 b4 Nc6 bxa5 Ne5 f4 Bd7 fxg5 Bc8 h4 Bf5 h5 Bg6 hxg6 Nc6 Rh2 Nb8 Rh6 Nf6 Rh1 Ng8 Kf2 b5 Kg2 f5 a4 c5 d4 c4 g7 Kf7 g6+ Kf6 d6 b4 g5+ Ke6 d7 h6 a6 c3 a7 c2 d5+ Ke5 d6 f4 Nd2 Kf5 Rh4 f3+ Kh3 f2 Nc4 Na6 Qd2 Nc5 Bg2 f1N Na5 Ng3 Nf3 Nge4 Ne5 Ng3 Bh1 Nb3 Nb7 Qb6 d8R Qa6 d7 Nf6 g8R Bg7 Rgf8 Na5 Qc3 Qc6 Bf4 c1R Qb2 Ne4 Bg3 Rc4 Re1 Rd4 Rf7 Rc8 a8N Qc2 Nb6 Nd6 Rdf8 Qd2 d8B Nc6 Nbd7 Rb8 Rc1 Rg8 Re1 Bh8 g7 Nc8 g6 N8a7 Rd1 Kg5 Re1 Nd5 Rf3 Qc2 R8f6 Rf8 g8R Nc3 g7 Nd1 Ng6 Re8 Rgf8 Qb1 g8N Qa2 Rd6 Be5 Rdf6 Bd6 Rd3 Rc8 Rd2 Bc5 Rf3 Rb8 R8f6 Rf8 Bb6 Rbe8 Bbc7 Rf7 Bd8 Rff8
2k3Nr/3b1p1q/3Q1p2/Q1KQnP2/4Qqn1/1pNB2RQ/PQNB3r/2R2n2 w - - 0 1 illegal: Other
5qRR/k1Np4/B2P1pnQ/4R1QB/1bK4B/3pP3/nr1N2Rr/R1Rq1q2 w - - 0 1 illegal: Other
1NK2Bb1/1qR1BB2/rp1pQ3/1RbP4/nqkP3r/6qN/2B1p2R/R4BN1 w - - 0 1 legal: proof: c4 h5 e4 f5 exf5 a5 d4 h4 b4 h3 bxa5 Nc6 gxh3 Nb4 h4 Nh6 h5 Nd5 cxd5 Ng8 Ke2 Kf7 Kd3 g5 Kc4 c5 Kb5 e5 a4 d6 f4 e4 h4 c4 a6 g4 a5 b6 Kc6 g3 h6 g2 f6 c3 h5 e3 h7 c2 a7 Rb8 a8B Bf5 h6 Bg4 f5 Rb7 a6 Rd7 a7 Bg7 Nd2 Re7 Ndf3 Bh3 Ng5+ Ke8 f7+ Kf8 Qe2 Bg4 N5h3 Nf6 Rh2 Re4 Kb7 Ke7 f8N Nd7 f6+ Kf7 Qe1 Qe7 Kc8 Be6 Bc6 Rh4 a8B Nc5+ Bd7 Na4 Bc6 Rg8 Bcb5 Rh8 Bbd3 Rg8 Bd2 c1Q+ Bc2 Qb2 h8R Qb4 h7 Bh6 Rh1 Rg7 Rg8 Bf4 h8R Bg3 Qe2 Be1 Qg4 e2 Bg5 Bc3 Rh2 Bb2 Rh7 Ba3 Rb1 Qe1 Qe4 Bc5 Rb5 Qb4 Rgh8 Bg4 Bf5 Qa7 Nd7 Qb7+ Kd8 Bh5 Nb8 Bg6 Bg4 Bf5 Rh1 Kg6 f7 Rg8+ f8B Rg7 Nf3 g1Q Bge7 Qg3 Nfg1 Rg8 Qe3 Be4 Bh5+ Kf5 Rg7 Bd3 Qh6 Ke4 Rgh7 Rg7 Bf7 Rg8 Qf6 Ke3 Rg7 Bh7 Qe6+ Kd2 Rh2 Kc3 Rh1 Qa8 Kc8 Kc4 Rg4 Rg7 Rh2 Bg8 Rh7 Qf2 Rgg2 Rg3 Rg7 Ra3 R2g3 Ra1 Ra3 Qg3 Rh7 Nc3 Ra7 Ra6 Rg7 Na4 Rc7 Qe3 Rg3 Qg5 Ra3 Qg3 Ra1 Qb7+
kb1rq3/N6n/6nR/Bnp1N3/1p1p1PQ1/1P2B1rB/NqRB2NR/4K1N1 w - - 0 1 illegal: No proof kernel
1Qq5/3p1Nn1/2r1N1Bb/npKP1pP1/1QBR1B2/3q1N2/1Nq3R1/rNN4k w - - 0 1 illegal: No possible last move
5NB1/1B1R4/1npB2Rq/2NQ2BB/2pPKn2/2b3q1/1nPQpk2/B2br1R1 w - - 0 1 illegal: Other
BQ4q1/RqB2Q2/1B2BPN1/bp1rNbp1/5K1B/QPq2Rp1/3k4/4n1nB w - - 0 1 illegal: Other
3rR1R1/p5N1/4q3/Bq1r1NQK/3PbBNp/P2n1p2/2RB4/kBrn1NB1 w - - 0 1 legal: proof: e4 d5 exd5 b5 h4 g5 hxg5 e6 f4 b4 g4 b3 g6 Qe7 g7 Qb4 g5 Qd4 g6 Qf6 cxb3 Qd8 b4 Be7 b5 Bg5 fxg5 Bb7 Qh5 Ba6 Qd1 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 b4 c5 d6 f5+ Kh5 f4 a3 f3 b6 c4 d7 h6 b7 c3 b5 c2 b6 e5 Ne2 Qf8 d8B Bd7 Bd2 Kd3 Nf4+ Ke4 Ne6 c1R Ra2 Qe8 Rc2 Rh7 Bd3+ Kd5 Qg1 Ne7 g8N e4 Ng7 Nbc6 b8B e3 b7 e2 Bbf4 e1Q b8B Qe2 B8a5 Nf5 Qg3 Q8e4 Re1 Qe6 Bfe3 Ne5 Bg1 Bc6 Bbc7 Ng4 Bcf4 Nfe3 Bf5 Ne5 Nf6+ Kd6 Qg2 Nd1 Ng4 Kd5 Qg3 Qa6 Qh4 Nd3 Re4 Qg8 Re8 Rd8 Ne6 Rg7 Rc3 Nc5 Be1 Qc4 Nd2 Ra1 Nf1 Qd3 Bed2 Rgd7 g7 Qe2 g6 Qb5 Qg5 Rc1 Kh4 h5 Rc4 Qf7 Bb1+ Qf5 g8N Nd3 Rc2 Bb7 Bac3 Kc4 g7 Kb3 Ba5 Be4 Ne7 Rd5 g8R Qe5 Ng7 Qe6 Rc5 Kb2 Rc2+ Ka1 Nef5 Qeb6 Qe7 Q6c6 Kg5 h4 Kh5 Qd7 Qg5 Qe6
2B2r1K/nQ1B1R2/p4Npn/Bp6/kP2N1Q1/1b2b1PB/B1Qb1r1n/R5B1 w - - 1 2 legal: proof: f4 b5 c4 d5 cxd5 e5 fxe5 a6 h4 g6 a4 c6 h5 f6 h6 Qe7 a5 Qg7 hxg7 Ra7 Ra3 Rb7 Ra1 Rb6 axb6 Bf5 Qb3 Bg4 Qd1 Bc8 Kf2 Kd7 Ke3 h5 Kd4 f5 e4 f4 b4 h4 d6 f3 b7 h3 e6+ Kd8 Ke5 h2 d4 c5 e7+ Kd7 e8B+ Kd8 d7 Kc7 d5 Kb6 d8Q+ Ka7 d6 f2 d7 c4 g3 c3 Bh3 f1R Qg5 Kb6 d8B+ Ka7 Ne2 c2 Nec3 Rf2 Qgg4 Rg2 Be3+ Bc5 Nd5 c1B Nf6 Be6 Rf1 h1N Bd7 Rg1 Bc8 Ba2 Ba5 Bd2 Qc2 Rg2 Nc3 Bb3 Bg1 Bce3 Rf4 Nf2 Rf5 Ne7 g8B Rh2 Bc4 Nbc6+ Ke6 Rd8 Kf7 Rf8+ Kg7 Ng8 e5 Kb8 e6 Na7 e7 Rg2 Qd4 Ng4 e8B Nh2 Qg4 Rf2 Bc6 Bb6 Kh8 Kc7 B6d7 Kd6 Rf3 Bbe3 Nce4+ Ke5 b8Q+ Kd4 Bf7 Bh6 Qd1 Be3 Qb7 Kd3 Qe2+ Kc2 Bc4 Ba4 Ba2 Bb3 Qd1+ Kb2 Qc2+ Ka3 Nh7 Ka4 Rf7 Re2 Nhf6 Rg2 Qh5 Rf2 Qg4 Nh6+
NB1n3Q/Rr1NNp1r/n3p1r1/BR2Q3/k4p1P/1N1bN1b1/4P3/nB1K2N1 w - - 0 1 illegal: Other
rB2R3/1B1bpB1n/1nQPn2p/2B2Q1B/N2nN1QP/3rk1Kp/2B3Rq/8 w - - 0 1 illegal: Other
K1QR1b2/3B1Rr1/4N1N1/p2R2BR/1nPRR2p/Pkn5/1n1p3N/1nr1qQ2 w - - 0 1 legal: proof: d4 e5 dxe5 c5 f4 g5 fxg5 b6 g4 c4 h4 c3 h5 Bb7 bxc3 Bg7 c4 Be4 c5 Bg6 hxg6 Bf8 Kd2 Ke7 Ke3 Ke6 Ke4 a5 c4 h5 c6 d6 g7 f6 g6 b5 c7 b4 c8Q+ Qd7 a3 b3 g5 b2 Nc3 b1N Bh3+ Ke7 Kd5 f5 e4 f4 e6 f3 e5 f2 Na4 f1N Nc5 Ng3 Qf1 Na6 Nf3 Qb5 Nh2 Nh6 g8R Rb8 g7 Qb6 g6 Qb3 Kc6 Ne4 Bg5+ Nf6 Ra2 d5 Rd2 Rb4 Rd4 Rh7 Rh8 h4 g8R Nf5 g7 Qe3 Rg1 Ra4 Kb7 Qe1 Ka8 Ne3 Rgg4 Nb4 Rgf4 Nd1 Rf3 Rh6 Bg4 Rg6 Rh5 Nb2 Rfd3 Na2 Rgh8 Rb4 R8h7 Nac3 Bf5 Rb6 Rd1 Rd6 R1d3 Rd8 g8N+ Ke8 e7 Rg7 Bg4 Kf7 e8R Rd7 Ne7 Rd6 Rf4 d4 Rd8 Rd7 Rd1 d3 Ne6 Rb7 Bf5 Nfd5 Rd4 Nb4 Ng6 Rd7 Nc7 Rd6 Bd7+ Rf6 Ne6 Rf2 Nef4 Rc2 Rd5 Rc1 e6+ Kg8 e7 Kf7 e8R d2 Re4 Na6 Red4 Nb4 Bh6 Kf6 Ne6+ Qf2 Bf4 Qg1 Re1 Qg3 Ree4 Qe1 Rd3 Nca2 Rh8 Rg8 Ne5 Rg5 R8h7 Kf5 Re2 Nac3 Be3+ Ke4 Rf7 Rg7 Ng6 Na6 Rc5 Nb4 Rd6 Nbd5 Bg5+ Kd3 Re4+ Kc2 Rb5 Nb4 Rdd4 Kb3 Rbe5 Rg8 Red5 Rg7
1nN2n2/b1N2N1Q/p1nK2p1/1Br2P2/2rB1Q2/n1NRpB1R/PkN5/3bN3 w - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 d5 e4 g6 exd5 c4 h5 c3 h6 Qd7 bxc3 Qd8 c4 Qc7 c5 Qg3 Rh2 Qc3 Rh1 Qg7 hxg7 Kd7 Rh6 Kd8 Rh1 Ke8 Ke2 Kd7 Kd3 h5 Kc4 e5 d4 b6 f4 a6 d6 Kc6 d7 h4 d8N+ Kc7 Kd5 h3 c4 b5 c6 Kb6 c5+ Ka5 c7 Kb4 c6 e4 f6 h2 f7 e3 f5 Nh6 g8Q Bc5 f8N Rh7 Nfe6 Rf7 Qg4 Bd6 Nc3 Re7 Bb2 Bd7 c8N Bc5 c7 Nf7 Rd1 Ng5 Nf3 Nh7 Qf4 Nf8 Rd3 Ba7 Ne1 Be8 Ba1 Ka3 Nc6 b4 Kd6 b3 d5 b2 Qh7 b1N Ncd4 Ba4 Be2 Bd1 Bf3 Kb4 Bb2 Na3 Ndc2+ Ka5 Rg1 h1N Rg3 Nf2 Rh3 Ng4 Nb1 Bb6 Bd4 Ne5 Nc3 Re8 Ne7 Nec6 c8B Ba7 Bd7 Rd8 Nc8 Re8 Nc7 Re4 Bf6 Rc4 Bd4 Nb4 Bb5 Rc5 Ke5 Rc4 d6 N4c6+ Kf6 Rc5 d7 Rc4 d8N Rc5 Na1 Kb4 Nf7 Ne5 Ke7 Rc4 Kd6 Nbd7 Ne4 Rb8 Ne7 Rc8 Ne8 R8c5 Nc7 Nc6 Nc8 Ndb8 Bg4 Nc2 Nc3 Ka3 Bh5 Kb2 Bf3 Na3 Nac2 Rb4 Rh4 Ra4 Rh3 Rac4
r2r2n1/3pRqBN/1R6/p2PnBNB/P1Q3N1/pRR2r2/k7/2Rrn1KN w - - 0 1 illegal: Other
B2N1N1R/1rpQ3B/5BnB/6K1/R1q1p1p1/P1PB1Bb1/kpn4Q/1N3br1 w - - 0 1 illegal: No proof kernel
b2N2rN/K2N1Q1N/4Q1Rn/1BNp3p/Bkn4P/2p1q1BN/RPnr2p1/8 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 f4 c3 Bb4 cxb4 f3 gxf3 Kf8 f4 Ke7 f5 Ke8 Kd2 Ke7 Ke3 c5 f4 g5 h4 d5 e6 Kd6 f6 a5 f7 h5 f8N c4 Kd4 g4 e4 a4 f5 c3 e7 g3 e8B a3 b6 a2 f6 Nh6 b7 Rg8 e5+ Kc7 Kc5 Bg4 b5 Rg6 e6 Be2 f7 Bf3 e7 Nc6 b8N Ne5 b6+ Kb7 Nc6 Be2 Qe1 Ka6 b7 Rb8 Nh7 Rc8 f8N Nc4 b8N+ Kb7 Nd2 Rg8 Ne4 Nb6 Nbd7 Ka6 Nh3 Ng4 Rg1 Bc4 Bf4 Bb5 Ng6 Nh6 Nh8 Nc4 Bb8 Rg7 Qf2 Qc7 Qf7 Qe5 Bc7 Qe6 Nd8 Bc6 Bb8 Ka5 Be2 Nd2 Bb5 Nc4 Bd6 Rb8 Rg2 Ba8 Ba4 Rb7 Kc6 Rg6 Nec5 Rb4+ Kc7 Rg5 Bb5 Qe5 Kb8 Rg8 Ka7 Qe3 Ba4 Ne5 Ndf8 Rbg4 Beb5 Rd4 e8Q Nc4 Qee6 Rd1 Nd7 Rd2 Rf2 g2 Rf6 Rg5 Bg3 Rg8 Rg1 a1N Rg6 Nc2 Ra1 Kb4 Ra3 Nd6 Ra2 Nc4
1BN1k3/1n2P3/r1n1p2R/rBQBP3/1p1bNB1Q/1q1p2QK/nB1R3p/4B3 w - - 0 1 illegal: No proof kernel
k1B4B/rR6/NbpN4/1RP3KB/4p3/1Q1pBr2/RN1pbP2/Rn2Brq1 w - - 0 1 illegal: Other
n7/QRBKN3/P3B2B/R1p2B2/1bPqnBbp/2N2pbr/2p1Q3/5BNk w - - 0 1 illegal: Other
1nK1R2r/npB1R3/NQN1B1pq/3qN1P1/r1RNk2b/1pR5/2P2p2/4B1N1 w - - 0 1 illegal: Other
2kBQ2N/B1b1qR2/p1p3pp/q1r1bN1B/1r1RR1N1/2P3KP/1R6/1B2nR2 w - - 1 2 illegal: No possible last move
1B4N1/2pB4/3Kp2b/1bnp1R1R/1B1PPQ1r/2p2p2/1BBRq2n/Q1NB3k w - - 1 2 illegal: Other
BQ2Nk2/2R1n1R1/N1pqPpnR/8/p1RRprpB/N1P5/N1r4K/Bb6 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 e4 d5 exd5 e4 a4 Bd6 axb5 Be5 fxe5 Rh7 Ra6 Rh6 Ra1 Rh8 Kf2 g5 Kg2 a5 b4 g4 d4 c6 h4 a4 e6 Rh6 d6 Rh8 d5 Rh6 d7+ Ke7 b6 Qc7 d8N Ra7 b7 Nf6 d6+ Kf8 b5 Ne8 d7 Rh8 h6 Ng7 h5 Rg8 h7 Ne8 h8B Qb6 h6 Na6 b8R Bb7 h7 Nec7 Rh6 Rg7 Bg5 Qe3 b6 Rg6 Rc8 Qf3+ Kh2 Rg8 Bh4 Nb8 Na3 Qb3 Qb1 Na8 Ba6 Nc7 Ne2 Nd5 Nc3 Nf4 Na2 Ne2 Rc7 Bc8 Bb7 Rg5 Ba8 Na6 b7 Qd3 b8N Nb4 Nb7 Nf4 Na6 Nbd5 Nd6 Ng6 Qb8 Nde7 Rc1 Rc5 Ne8 Qd6+ Be5 f6 d8R Rb7 Rdd7 Rb3 Rd8 Rf3 h8R+ Ng8 Rg7 Rf4 R8h7 N8e7 Ba1 Rc3 Nac7 Ba6 Rd7 Qb4 Rd4 Bd3 Na6 Qd6 Rd1 Rb3 c3 Rb1 Rc4 Rc1 Rd2 Bb1 Rdd4 Nd5 Rc7 Nde7 Rg7 Rc2+
1q1KBqR1/1B2p1bQ/4N1b1/1pRBP2N/BP3nRr/5r1p/1B1kN3/n1R3b1 w - - 0 1 illegal: No proof kernel
1K3RQn/rpB2BNB/2BR3R/Q4N2/b2p2B1/kP1P2rn/4pbq1/q3q1B1 w - - 0 1 illegal: No proof kernel
1Q1B1Q1N/1R1p4/BppKbN2/R2B2q1/3P2rk/r1b1BBqB/1PN1q3/4n1n1 w - - 0 1 illegal: No proof kernel
BN1n3k/2QBb1q1/3r1ppr/1b1BKP1Q/1BNn1Qp1/2r1R1P1/R2rB3/5B2 w - - 0 1 illegal: Other
K2RB2r/B2R1N1N/3b1Nbn/1q3B2/1Qp1Bb1p/r1P2RRP/2B4p/1b2kn2 w - - 0 1 illegal: Other
N1r2R1Q/KrB1pp2/2B2P1R/bQ1Np1QQ/8/nn3b2/1kq1PN1b/2bQQ3 w - - 0 1 illegal: Other
2k4B/r3RBn1/1Kn1nqQ1/B1P3BP/2b3nQ/1R3B2/3Qp3/1n1NQN2 w - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 a4 a5 axb5 c5 bxc6 f4 d4 f3 b5 e6 b6 Bc5 dxc5 Ra6 exf3 Ke7 f4 Ra7 f5 Rb7 cxb7 Ke8 Kd2 g5 Kc3 d5 Kd4 Kd7 c4 g4 f4 a4 h4 g3 h6 g2 h7 a3 c6+ Kd6 h5 a2 c7 Kd7 Kc5 d4 f6 e5 f5 e4 f7 d3 f8Q d2 f6 e3 f7 e2 Nh3 g1N Bg2 Qf6 Qg7 Qf1 f8Q+ Qf7 Qd6+ Ke8 Nf2 Qe6 Rh3 Qe4 Bf3 Be6 c8B Bg4 Be6 Nf6 Qe1 d1N Bg5 Qg6 Qdd2 Nc6 b8B Ne3 b7 Nf5 Bc7 Qf7 Qg6 Ng7 Rg3 Nh3 Ba5 Nf4 b8Q+ Ke7 Qbb4 Ra8 h8B Ra7 Bed5 Kd7 Kb6 Nfe6 c5 Kc8 Nd1 Bh3 Qh4 Ng4 Bc4 Qf6 Bb3 Nf8 Bf7 Nfe6 Qd6 Bg2 Nd2 Bh3 Rb1 a1N Rb3 Nc2 Nf1 Na3 Qdd2 Nb1 Re3 Ned4 Re7 Nde6 Bh1 Bg2 Rb3 Bd5 Bf3 Bc4
nB3N2/p3QnN1/Bb3N1R/B2q1B1N/1K4PR/1pP5/Q2q3n/B4q1k w - - 0 1 legal: proof: h4 c5 d4 h5 dxc5 f5 e4 g5 hxg5 b5 exf5 Qb6 a4 Bh6 b4 Qg6 a5 Qf6 a6 Bb7 axb7 Qd4 c6 Kd8 bxa8B Qb6 Bb7 Ke8 Bc8 Qd8 c7 Bf8 Bc4 Rh6 Be2 Rc6 Bf1 Rc5 bxc5 Na6 c6 Bh6 Bf4 Bg7 Bc1 Bf8 Kd2 Kf7 Kc3 d5 f4 e5 g4 e4 g6+ Kf6 g7 e3 Qe1 e2 Bd2 h4 Nh3 Ne7 g8Q Nc5 Kb4 d4 Ra6 d3 Nc3 Ng6 Qa2 Qe7 Nd5+ Kg7 f6+ Kh6 f5+ Qe3 f7 Ne5 f6 Ng6 Bf5 Bd6 c8N Bc7 Nce7 Ne5 Nhf4 Kg5 f8B h3 f7 h2 Nf6 Na4 Bg7 Bb6 f8B Nf7 c7 Qh3 Bc3 d2 c8N d1Q Neg6 Qd2 Nd6 Qf3 Nde8 Qfd5 Qf2 e1N Bd6 Nf3 Nf8 Qe4+ Bc4 Qed5 Qe3 Kh4 Qe7 Kg3 N4h5+ Kh3 Bb8 Kg2 Rd1 h1Q Bh8 Qg5 Neg7 Qgd2 Bcd3 Qh3 Rh1 Nh2 Bc4 Qhf3 Bcd3 Qf1 Bc4 Nf3 Rh4 Nh2 Be2 Q2d3 Ba1 Qd2+ c3 Kh1 Bc7 Bf2 Ba5 Nb6 N6h7 Be1 Ka3 Q5d3 Nge6 Q2e3 Be5 Qed2 Bb8 Qd5 Neg7 Na8 Rh6 Bf2 N7f6 b4+ Ka4 b3 Kb4 Be3 Ba6 Bb6
QBRN1N2/1K2R2r/QP1qR1nR/4rb2/B3P1n1/1NR1q3/2rN2b1/1b2k3 w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Be3 Ra2 Bb6 Ra1 Ba5 bxa5 Kd7 Ra2 Ke7 Ra1 Ke8 Kf2 Kd7 Kf3 f5 d4 h5 g4 c5 d6 Ke6 d5+ Kf7 e6+ Kg6 b6 c4 d7 h4 d6 h3 a6 a3 e7 a2 e8R h2 a7 c3 Qd3 c2 Re7 Rh4 Qa6 f4 Ke4 f3 Kd5 f2 e4 Nh6 Ne2 Rh5 Bf4 c1Q Nd2 Qb2 Nc1 Qb4 Ncb3 Rh4 Rc1 a1R Bb5 f1B Rc3 Rc1 Ba4 Nc6 Be5 Rb8 a8Q Rc2 Bg3 Qf8 d8N Qf4 d7 Qe3 Ne6 Ne5 d8N Bd3 Bf4 Rb7 Bg3 Rh5 Bf4 Nef7 Kc6 Nh8 Bd6 Rd7 Bb8 Rd5 Kc7 Re5 Kc6 Bd7+ Kb7 Qd6 Re8 Rh3 Nf8+ Kg7 g6 Kf6 g7 Kg5 g8R+ Kh4 g5 Kg3 g6 Kf2 g7 Ng4 Re7 Bf5 Re6 Ng6 Rh8 Rh5 g8R Rh7+ Rg7 Ke2 Rc1 h1B Rge7 Bg2 Rh1 Kf2 Rh3 Ke1 Rc8 Rg7 R8h6 Rh7 Rg3 Rc3 Rgh3 Bb1 Rg3 Rc2 Rgh3 Qg1 Rhc3 Qe3
qN3N1b/1NK4n/2Qn4/BNrBb3/q4NB1/2PB1R1q/1q1R1P2/3Q1bk1 w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 f5 exf5 b4 h4 g6 fxg6 b3 axb3 Qb6 b4 Qc7 b5 Qd8 g4 a5 h5 Qc7 g5 Ra6 g7 Rg6 hxg6 Qd8 Kd2 d5 Kc3 Kd7 Kd4 Ke6 b4 Kf5 b6 h5 b7 h4 c6 h3 Kc5 Ke4 c7 e5+ Kb6 h2 b5 d4 Bd2 d3 Na3 a4 Ra2 Bh3 Ba5 d2 Ne2 Nf6 g8Q Kf3 g7 e4 g6 e3 Qc4 Ne4 g8B Bg7 Bd5 Rh5 Qc6 Bh8 Nf4+ e2 g7 Qg8 c8N Nd7+ Kc7 Nf8 b8N Nh7 Rg1 h1Q b6 Qf8 Be6 Rc5 Nb5 a3 g8B Bg2 b7 Qh3 Rb2 a2 Ncd6 a1Q Nd7 Qa8 b8N Qc1 Ra2 Qb2 Nf8 Be5 Bf5 Bh8 Bd5 Be5 Qc1 e1B Bd3 d1Q Rh1 Bh8 Nb7 Bf1 c3 Bd2 Rg1 Qa4 Rg7 Be3 Rf7 Bed4 Qd1+ Be2 Nh5 Kg2 Bg4 Bf1 Rf3 Nd6 Nf4+ Kh2 Na3 Bde5 Nb5 Qc1 Rb2 Kg1 Rd2 Qb2
qb1n4/n2BrR2/1QB1q3/1B1NP3/R1B1N3/3n1NBQ/1PN3K1/rr1k1r2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 g5 fxe5 a5 h4 b5 hxg5 Ra6 a4 Ra7 axb5 Ba6 bxa6 Ra8 Kf2 Ke7 d4 c5 g4 f5 e4 h5 e6 Kd6 e7 c4 e8B f4 g6 h4 a7 a4 e5+ Ke7 d6+ Ke6 g5 Kd5 g7 Ke4 g6 c3 d5 f3 d7 a3 d6 a2 Bb5 h3 Bf4 c2 Nd2+ Kd4 Qf1 c1N Bg3 h2 Qh3 Qg5 d8N Nh6 g8N Nf7 d7 Qh6 g7 Rh7 Ne7 Nc6 g8B Qe6 Nd5 Bd6 Ne4 Bb8 Kf1 f2 Kg2 Nd3 Rf1 Bc7 Ra1 Rc8 a8B Na7 Bac6 Ra8 Rf1 Bb8 Ra1 Nd6 Rf1 a1Q Bgf7 Qa5 Ra1 f1R Ra4+ Qb4 Bg8 Re7 Bgf7 Nb7 Bg8 Nf2 Bgf7 Qc4 Nf3+ Kd3 Rg1 Rb1 Rf1 Ke2 Bg8 h1R Bgf7 Qg4 Ne6 Qg8 d8Q Nd3 Qb6 Nd8 Bed7 Qb3 Rf2+ Kd1 Ned4 Rf1 Nc2 Qa3 Nf4 Qd6 Bfc4 Qde6 Nd5 Nc8 Rb4 Raa1 Ra4 Qh8 Nfd2 Na7 Rf7 Qhh6 Nf3 Qd2+ Qf2 Qa5 Qb6 Qa6 Bf4 Qb7 Bg3 Qa8
2B1nB2/kN2Qn2/B3N1RN/1PrQ2qB/2n5/P2N4/B3q1q1/1n1bK1Rr w - - 0 1 legal: proof: h4 b5 f4 e5 fxe5 a5 a4 d5 axb5 g5 hxg5 a4 c4 a3 cxd5 a2 Qb3 Kd7 Qd1 Ba3 bxa3 Ke8 d4 Kd7 e4 f5 g4 c5 g6 Kc7 d6+ Kb7 g7 h5 d5 h4 g5 h3 e6 c4 d7 f4 e5 c3 d6 c2 g6 f3 e7 h2 e8B Nc6 e6 Nd4 e7 Ra7 Bh3 Nf5 Ne2 Ra4 Rg1 h1N Qd5+ Kb8 Nd4 Rb4 Nd2 Nf6 g8B Ka7 g7 Nh6 Ne6 Ng3 Ne4 Ne2 Rg6 Rc4 N4c5 Nf7 Nd3 Nc3 Bh6 Rc5 Rb1 Qa5 d8N a1Q d7 Qa2 Nb7 c1N d8Q Qg2 Bd7 Ne8 Bg4 Nb3 Bh5 Nd2 Rc1 Ned6 e8B Ncb1 Qe7 Qd8 Bc6 N2c4 Bed7 Ne8 Rd1 Nfe5 Bf7 Rh7 g8N Rh8 Bf8 f2+ Ke2 Rh7 Nh6 Rh8 Re1 f1Q+ Kd1 Qff2 Rg1 Qa2 Bg8 Nf7 Ke1 Qac2 Na5 Qa2 Bb7 Qab2 Ba6 Bb7 Qd4 Bf3 Nb7 Bd1 Bc8 Qdd5 Qe4 Qdg5 Qd5 Qh2 Nd4 Qgf4 Qde4 Ncd6 Bhg4 Qg5 Nhf5 Nd8 Ba2 Nc4 Qd5 Nf7 Ne6 Qhg2 Bf3 Rh5 Nh6 Rh1 Bh5 Qbe2+
1n4bB/b1R3b1/2PQ1BK1/2n1r1N1/3r3P/2Q3B1/2B3rb/bQRQN1Bk w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Bb7 dxc5 Qb6 a4 Ba6 axb5 a4 Bc4 Qa5 bxa5 Bb7 Bf1 Bc8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 h4 g6 c4 a3 a6 d4 h6 d3 a7 d2 b6 a2 h7 e6 b7 Bg7 c6 Ne7 c5 Ng8 c7 Ne7 Nc3 Re8 h8B Na6 b8B Rd8 Bd3 Re8 Bc2 Nc6 Nf3 Bd7 c8Q g5+ Kg4 e5 Kh5 e4 Bg3 g4 Ne1 e3 f4 e2 Bb2 Re7 Rc1 a1B Rg1 Rb8 a8Q Be6 Qab7 Bg8 Qb3 Re5 Ne4+ Ke7 Ng5 Kf6 Qbb7 Ra8 Bc3 Ncb8 Qb1 Ra7 c6 Nc5 Qc7 Rb7 Qa5 Rb2 Bd4 Ra2 Qc3 Rb2 Rf1 Ra2 Bg1 Rb2 Nd3 e1B Rf3 Bf2 Ne1 Ra2 Rd3 Rb2 Rd7 Bd4 Rc7 Be3 Qe2 d1R Qf3 Rd4 Qd1 Nbd7 Bd3 Rg2 Bc2 Ke7 f6+ Kd6 f5 Kd5 f7 Nb8 f8Q Bf4 B3f2 Bh2 f6 g3 Kg6 Nd3 Ne6 Ke4 Ng5+ Kf4 f7 Nc5 Ngf3 Kg4 Qd6 Kh3 f8B Rd3 Be3 Rd4 Be7 Rf2 B3g5 g2 Be3 Rfd2 Bgf2 g1B Bg3 Bf2 Bf6 Re2 Nd3 Kg2 Nde1+ Kh1 Ng5 Red2 Bef4 Be3 Bf2 Re2 Bg1 Rg2 Bg3 Bd2 Qe3 Ba5 Qef3 Bb6 Qc3 Ba7
1NNN2k1/nR1bR3/1B1r2B1/1b3K2/2q1n3/2Q1Bn1B/NPP5/Qn1bb1N1 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 h4 f4 hxg5 f3 e4 Kf7 g6+ Ke8 g5 Ra6 g7 Rh6 g6 Rh5 Qd2 Rg5 Qd1 Rg3 fxg3 Nc6 g4 Nb8 g5 f2+ Kd2 Nh6 Bc4 f1N+ Ke1 Ne3 Bf1 Nef5 exf5 Ng8 Kd2 h5 Kd3 e5 Ke4 a4 f6 h4 b6 a3 b7 h3 c6 a2 c7 h2 Kf5 e4 Qd3 e3 Qc3 e2 Be3 e1N Bh3 Nc6 b8N Bb4 f7+ Ke7 Bb6 Nf6 g8Q Ne4 g7 Nf3 g6 Na7 f8B+ Ke8 Qh7 Qh4 g8B d5+ Be6 d4 g7 d3 g8N d2 Nh6 d1B Nf7 Ba5 Bh6 Bd7 Bhe3 Kf8 c8N Bb5 Qg6 Rh6 Nd8 Bd7 Qh5 Bb5 Bb3 Rd6 Bf7 Bb4 Bg6 Kg8 Qg5 Ba5 Qgf6 Bb4 Qa3 Be1 Nc3 Bd7+ Ne6 Bb5 Rc1 a1N Nd8 Nb3 Na2 Nbd2 Qfc3 Bde2 Rd1 Nb1 Rd5 Bd1 Re5 Ned2 Re7 Qc4 Nc1 Ne4 Qa1 Qd4 Na2 Qd3 Ne2 Qc4 Rf1 h1B Ng1 Nfd2 Rf4 Bhf3 Rh4 Bfe2 Rhh7 Bg4+ Kf4 Nf3 Rb7 Nfg5 Rhe7 Bgd7 Ke5 Nf3+ Kf4 Be8 Kf5 Bed7+
3QN1n1/r6K/2b4Q/5Q2/Q3R1bN/1qP1pB1Q/Bk1nPbrB/R3q1B1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 g5 gxh5 b5 d4 c5 dxc5 b4 f4 b3 fxg5 Bb7 axb3 Bg7 b4 Bf8 b5 Bc8 Kf2 d5 Ke3 Kd7 Kf4 Ke6 h4 f5 c6 d4 b6 Kd5 g6 Kc4 Kg5 d3 b7 d2 g7 e5+ Kg6 e4 c3 f4 h6 f3 c7 f2 h7 Bd6 h5 Ra6 h6 Qh4 Qa4+ Kd5 Bg2 f1B Bf3 d1Q Nd2 Nf6 g8B+ Kc5 Ba2 Qh3 Nc4 Be6 c8Q+ Nc6 b8B Bd5 Qf5 Ra8 a6 Na5 a7 Bg3 Nd6 Qe1 Ne8 Bf2 Bh2 Nc4 Bd2 Rf8 h8Q Ng8 h7 Qg4+ Bg5 Nd2 Qg7 Qh4 h8Q Bh3 Qgh6 Bg4 Kh7 e3 Bgf4 Qf6 Qh3 Qc6 Qg7 Qd6 Qgh6 Qb8 Bfg3 Qb3 Bh4 Rd8 a8Q Rd6 Qd8 Ra6 Bg2 Rff6 Nf3 Rg6 Bg1 Ra5 Bg3 Ra7+ Bc7 Rg5 Nh4 Rg6 Bf3 Rg5 Qad7 Kc4 Bch2 Bc6 Bb1 Qbd1 Ra4+ Kb3 Re4 Kb2 Ba2 Bb7 Qdc6 Qb3 Qa4 Bc6+ Qf7 Bgd7 Qf4 Qf1 Qfg4 Bg3 Bf2 Qa1 Re1 Qc1 Bfg1 Bf2 Qgh5 Rg2 Qd5 Bg4+ Q5d7 Qcc2 Ra1 Qc1 Qf7 Qe1 Qfd7 Bb7 Qf5 Bc6+
1R1q4/1B1Q1Rn1/1BN1n1Nq/2R2B1P/kpQ3qR/1r1Kb2B/3P1bB1/6r1 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 h5 c4 f5 cxd5 c5 exf5 Nh6 g4 Bd7 gxh5 Bc6 dxc6 Ng8 Ke2 b5 f4 g5 h4 e5 a4 e4 f6 b4 f7+ Ke7 a6 Kd6 h6 g4 a7 g3 h5 e3 a5 g2 c7 Kc6 c8B Kb5 f5 c4 a6 c3 f6 c2 h7 Nh6 Bf5 Qe7 Ra5+ Kc6 Rc5+ Kb6 Na3 Qe4 Nb5 Ka5 Nf3 g1Q Rh4 Qg8 Ne5 Bg7 f8Q Ng4 f7 Qc6 Qc8 Ka4 f8R Bh6 Qd7 Nf6 B1h3 Qg4+ Kd3 e2 Nd4 e1B Bb2 Ne8 Rf7 Ng7 Ng6 Bf2 Qc1 Rg8 h8R Bhe3 Qf1 c1Q Ba1 Ka3 Bc3 Qb6 Nc6 Qd8 Bd4 Qb2 Qc1 Ka4 Qc4 Qa1 Rd5 Qb2 Bb6 Qbf6 Rc5 Qfg5 Qd6 Nd7 Qe7 Nf8+ Qd7 Rc8 a8B Qh6 a7 Nfe6 Bb7 Qc7 a8B Rce8 Rf8 Re7 Rb8 Qd8 Rh7 Rf7 Be4 Rf3 Bf5 Ne8 Rf7 N8g7 Rb5 Rg3 Rc5 Rg1 Bc8 Rb1 Bcb7 Rb3+ Qc3 Re8 Bc8 Bd4 Ba6 Nf8 Na7+ Ka3 Bc8 Re1 Bag2 Bde3 Nc6 Nfe6 Ba6 Ka4 Bb7 Rbb1 Qcd4 Rg1 Qc4 Rb3+
n3RQB1/1r1Q2Rr/1q1pPq2/4r1B1/3B1Q1Q/Nn6/k3Nb1P/1bB2K1Q w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 c5 fxe5 b4 d4 b3 dxc5 Nf6 axb3 Qb6 b4 Qd8 b5 Ng8 c4 Ke7 e4 Ke6 a6 g5 a7 f5 c6 f4 c7 f3 c5 g4 c6 g3 b6 g2 h6 Rh7 b7 Qf6 Qd2 Bb4 Bc4+ Ke7 e6 Qf4 e5 Qf7 Na3 Bd6 Qf4 Bc5 Ne2 Na6 b8B Nf6 Rg1 Ne4 Rb1 Bb7 c8Q Nc7 Qh8 Nd2 Rb3 Qg6 Re3 Qf6 Ba2 Nb3 Kf2 Na6 c7 Be4 c8Q Bb1 Bc7 Rb8 a8Q d6 Ke1 Rg7 h7 Rb7 Ba5 Ba7 Bad2 Nc7 Qcg8 Rf7 Qgg3 Bd4 Qgh4 Ba7 Qhb8 Bc5 h8B Rh7 Qa6 Bd4 Qc6 Na8 Re4 Bc5 Bg7 Bb6 Be3 Bd4 Bh6 Bb6 Bg5 Ba7 Bd4 Bc5 Rf1 g1Q Qd5 Qe3 Rg1 f2+ Kf1 Ba7 Ba1 Qc5 Bd4 Qb6 Re3 Nc5 Qh1 Nb3 Kg2 f1R Qc8 Re1 Qd7+ Kf8 e7+ Kf7 Kf2 Rd1 Re4 Rd3 Kf1 Re3 Qc7 Ke6 e8Q+ Kd5 Qcd7 Rc3 Qf8 Rc5 Nb5 Kc4 Na3+ Kb4 Rg2 Na1 Bg8 Nb3 Re3 Rb5 e6 Re5 Rf3 Na1 Rff2 Kb3 Rf3+ Ka2 Rc3 Qg6 Rc8 Nb3 Re8 Qf6 Bh6 Qc7 Rg7 Bc5 Bg5 Qb6 Bdb2 Bg1 Bd4 Bf2
5q1n/Kp1Q3B/PN2B1R1/N5BQ/bNbbk1B1/n6N/rPq5/BR4r1 w - - 0 1 illegal: Other
R2K1BBk/2Q5/1Q2br2/4n3/1Q1QPNpn/1RQ2Bbn/1P4qN/q3B1b1 w - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 gxf5 g5 h4 d5 cxd5 e5 fxe5 g4 a4 Ra6 axb5 Rh6 Rh2 Rh5 Rh1 Rg5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kf7 Kg3 Kg7 Kf4 h5 d4 c5 e4 a4 e6 a3 Ke5 a2 d6 c4 e7 h4 e8Q c3 b6 c2 f6+ Kh7 b7 h3 d5 h2 f7 Be6 d7 Bc5 f8B Qb6 d8Q Qb4 d6 Bb6 d7 Bc5 Qd4 Qa3 Be2 Na6 b8Q Qe3 Qbb4 Qb3 Qdb6 Bd5 d8Q Be6 Nh3 Qf3 Qec6 Qf2 Qdc7+ Ne7 Nd2 Qg2 Kf6 Nb8 g6+ Kg8 g7 Ng6 Nf3 Rh6 Rf1 h1N Bd2 c1B Nh2 Nf2 Be1 Bf4 Bf3 Bg3 Nf4 Nh3 Rh1 Kh7 g8B+ Kh8 Rf1 Bd6 Qc2 Bc5 Qcc3 Nc6 Rf2 Nce5 Re2 Rh7 Re3 Nh4 Rd3 Rd7 Re3 Rd6 Ke7 Rd7+ Ke8 Rf7 Kd8 Rf5 Qcd2 Rf6 Rb3 Rf7 Q2c3 Rf6 Rc1 a1Q Rd1 Qa2 Ra1 Qb1 Ra8 Qa1 Qdd6 Bcf2 Qdd4 Bg1
1N1bq2k/1N1QB2N/4nPn1/7n/3RR3/2N1pPqr/QK1rBBB1/rB6 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 exf5 b4 cxd5 b3 axb3 Bd7 b4 Be6 b5 Bc8 b3 a5 b6 g5 hxg5 a4 Rh5 a3 Rh2 Bd7 Rh1 Ba4 bxa4 Ra6 Rh5 Ra5 Rh1 Ra8 d4 Kf7 Kd2 Kg7 Kc2 c5 g4 h5 g6 e5 a5 c4 d6 e4 d7 a2 g5 c3 b7 h4 a6 h3 a7 h2 d5 Nf6 d6 Ng8 Nf3 Nh6 f6+ Kg8 g7 Nc6 b8N Kh7 g8B+ Kg6 Be3 Ng4 Bh7+ Kf7 g6+ Ke6 g7 Kf7 Be2 Qc7 d8B Be7 d7 Nge5 Re1 h1N g8B+ Kf8 Ng5 Ng3 Bd5 Nd4+ Kc1 c2 Nc3 Ne6 Kb2 c1R Bf5 Kg8 Nh7 Ng6 Bd4 Bd6 Be7 Nh5 d8N Bb4 Qd2 Qg3 Nb7 Ba5 Be3 Bb6 Bc6 Bd8 Qd7 Rd1 Bd5 Rd4 Rad1 Rd3 Bc6 Rd6 Rd4 Rd5 f3 Rd6 Bh3 Rd5 Bg2 a1Q+ Kb3 Qd1+ Kb2 Qa4 Bf2 Rd6 Bcb5 Rd5 Bbd3 e3 Re4 Rd6 Bb1 Rd3 Rd1 Qc6 Qc7 Qe8 Qd7 Rd6 Nf8 Rh6 Nh7 Kh8 Rdd4 Nhf4 Nf8 Rh3 Nh7 Nh5 Na6 Rc8 a8Q Rb8 Qa7 Ra8 Nb8 Rd5 Qaa4 Raa5 Qb3 Ra1 Qa2 Rd6 Rc4 Rd3 Rcd4 Rd2+
1Qn4Q/PQ1q1b1R/5Q2/1K3B2/B7/k1PBbN1r/4NBRp/q1rqQ1r1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 d4 Na6 dxc5 Nb8 f3 Bh6 f4 Bf8 fxg5 Nf6 g4 Bg7 h4 Nh5 g6 Bf8 g5 Nf6 h5 Ng8 g7 Nc6 Qd4 Ne5 Qd1 Ng6 hxg6 Qb6 Bg2 Qc7 Bf1 Qd8 Kd2 b5 Kd3 h5 a4 e5 f6 d5 f7+ Kd7 c6+ Kd6 c3 Kc5 a6 h4 c7 b4 a5 h3 a7 d4 a6 b3 Ne2 b2 Be3 Qd7 Qe1 Nf6 g8B Bh6 f8Q+ Qe7 g7 Ne4 g6 Nd6 Qf6 Be6 c8B Bf7 Nd2 b1R Ra2 Qd7 Bf2 Rc1 Nf3 Kb5 Rh2 Rb8 a8Q Be3 a7 Rh7 Rd2 Ka4 Qb7 Ka3 Rg2 h2 Rd1 Qc6 Bf5 Rh3 Bh7 Qd7 g8Q Rf8 g7 Nc8 Qh8 Rd8 g8Q Re8 Be6 e4+ Kc4 d3 Bf5 d2 Bd5 Re6 Bc6 Re7+ Kb5 Re8 Qg3 Rg8 Qgb8 Rg6 Rg5 Rg7 Rh5 Rg1 Rg5 Bd4 Rg2 e3 Nf4 Bb6 Bc4 e2 Bcd3 Rc2 Rb1 d1Q Rb4 Be3 Re4 Be8 Re7 Rc1 Rh7 Bh5 Ka6 Bf7 Ba4 Qc7 Kb5 Qd6 Qf1 e1Q Ne2 Qd7+ Ka6 Qed2 Qe1 Qb2 Ka5 Qa1 Ka6 Qd4 Kb5 Qd7+
QNr2Nk1/RBnR2r1/1qQ1r2p/Qn2PQ2/4r3/1K2P3/2rQ4/b3RRB1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 b5 g4 f5 a4 e5 fxe5 Nh6 axb5 Be6 h3 Bf7 Rh2 Ng8 Rh1 Bh5 gxf5 g4 Ra4 g3 Ra1 Bg4 hxg4 Bc5 Bg2 Bb4 Bf1 Bf8 b4 Kf7 d4 a5 Kd2 c5 Kc3 c4 d6 g2 f6 a4 d7 a3 g5 h6 g6+ Ke6 f7 a2 g7 Qa5 d8Q Qa7 d5+ Kf5 d6 Kg6 d7 Kh7 b6 Qc7 b7 Ra6 b5 Rd6 b6 Be7 f8R Bh4 Nh3 g1R Qd2 Rf6 Na3 Nc6 b8Q Qa7 b7 Rd6 Qbc8 Qa6 b8Q Nd4 Ng5+ Kg6 Qbb6 Rf6 Bg2 Ne6 Nh7 Ne7 Nb5 Nc7 Bb7 Bf2 Qc6 Qb6 Na7 Ned5+ Kc2 Rg4 Re1 c3 Ba3 Rc4 Bc5 Nb5 Kb3 c2 Qa5 c1R g8Q+ Kh5 Qge6 Kg6 Qa8 Kg7 Qf5 Bd4 Qd2 Bb2 Bg1 Ndc7 e3 Re6 Rf6 Rf4 Nf8 Kg8 Rf7 Rg4 Rf1 Rc2 Rae1 a1R Re7 Ne8 Qdc7 Rg3 d8R Rg7 Rdd7 Ra4 Rf7 Ba1 Qcd8 Qc5 Q8a5 Re4 Qcc8 Rb6 Rf6 Bb2 Ne6 Ba1 Nc6 Ra6 Rg6 Kh7 Nb8 Rf8 Qcc7 Kg8 Qcd6 Nec7 Qdb6 Rc8 Nf8 Qd4 Qc5 Rd6 Rf6 Rd5 Ra6 Rd6 Qc6 Qb6 Ra7 Re6
1B3B2/1b2K2R/q6N/1p1B2NB/b1b1P1rk/rq1b3N/1QNPQ3/1RB3n1 w - - 0 1 illegal: Other
2R3Nn/k1BnP1R1/1N1NrRP1/5q1p/2NK3Q/r2r3b/R4R2/4qBQr w - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Qf6 f4 Bh6 fxe5 Bg5 hxg5 Qd8 Kf2 Kd7 Ke3 c5 b4 Kc7 d4 Kb7 g6 a5 f6 h5 f7 a4 f8R g3 e6 g2 b6 c4 d6 c3 b5 c2 d5 a3 e7 a2 e8N Nf6 d7 Ng4+ Kd4 Rh6 e4 Ra6 e5 Ka8 b7+ Ka7 d6 Ra5 e6 Qh4 d8Q Ra6 d7 Qh3 Nd2 Ra5 Rf2 Ra6 Ne2 g1Q Nc3 Rd6+ Nd5 Na6 b8R Qf3 Qh4 Qfg2 d8R Qf3 e7 Rd7 Nc4 Rh7 Bf4 c1R Ned6 Nh6 Rg8 Rb1 Rg7 Nf7 Nf6 Nc5 Ng8 Nh8 Bh2 Qf5 b6+ Ka6 b7 Ka7 Qdg4 Rb3 Be5 Ra3 Rh2 Qh1 Qg1 Rd8 Rb1 a1R Rb6 Nd7 Ra2 Rb1 Rhf2 Ra1 Nf7 Re1 Bc7 Re2 Rf6 Re6 Qhg4 Qh4 Nfd6 Qg3 Rf4 Qe1 Qh4 Nf7 Rff2 Rh8 Nh6 Rhf8 Ng8 Nh8 Rf3 Rde8 Qgg5 Rf7 Ne5 Ref8 Be2 Qg4+ R6f4 Nf6 Rf1 Bd7 Rc8 Bc6 b8N Bg2 Nec4 Bh3 Nd7 Qf3 Ndb6 Nd7 Bd3 Rff6 Rf5 Re3 Be2 Rfe6 Rf4 Rf5 Qgg4 Rg5 Rf6 Qf5 Rf2 Rb3 Qg2 Rf3 Qh1 Rg1 Bf1 Rc3 Qh2 Rh1 Qg1 Rd3+
2N3RN/1P2Q1bP/Q1p1QQ1q/BB1QR1qr/3r2n1/5q2/4qB2/2k1nB1K w - - 0 1 illegal: No possible last move
bn3Rr1/1B1N2BP/N1N2KbP/B2Q1n1b/3N1B2/R1n1pb2/1k6/r4QB1 w - - 0 1 illegal: No proof kernel
1q1Q1qb1/bQp2B2/R3NP2/1N2B3/bR4Q1/K2b1PQ1/BB1n4/2qB1k1n w - - 0 1 legal: proof: e4 h5 b4 a5 h4 g5 hxg5 f5 exf5 e5 d4 b5 a4 e4 axb5 a4 c4 Qe7 b6 Kd8 c5 Ke8 b5 Ra6 b7 Rb6 cxb6 Qd8 Qd3 Rh6 Qd2 Re6 Qd1 Re5 dxe5 Bg7 Rh3 Bh6 Rh1 Bf8 Kd2 Kf7 Kc3 d5 Kb2 d4 g4 d3 g6+ Ke7 e6 Kf6 g5+ Ke5 f6 Kd4 g7 h4 g6 h3 e7 e3 e8B d2 Bf7 e2 Na3 Kd3 Nf3 h2 Nd4 Ne7 g8B Bh3 g7 Bf5 Ne6 Nbc6 b8Q Nd4 b7 Nf3 b6 Qe8 Nb5 a3+ Kb3 a2 Ka3 Bg6 Bg2 e1Q Bb2 Qe4 Rg1 h1B Qd8+ Qd4 Qe1 d1B b8Q Nd2 b7 Ba4 Bf3 Qd5 Rg4 Nf5+ Rb4 Qd6 Qa7 Ng3 Bd1 Bd5 b8B Nh1 f3 Qb6 Qf2 Bc5 Qb7 Qf8 Qg3 Ke3 Qg4 Kf2 Ba7 Bd3 Be5 Be3 Qg3+ Kf1 Qg4 Qc6 Bad4 Qce8 Bb2 Bc5 Rc1 Bd4 Rc6 Ba7 Ra6 B5c4 Bh7 Bd5 g8Q Bdb3 Qg3 Bd5 Q8g4 Bdb3 Qdd4 Qb8 Bhg8 Bbc4 Qd8 Bd5 Bb3 a1Q+ Ba2 Qc1 Bh7 B3c4 Bc2 Bd3 Bd1 B5e4 Bc4 Bh7 Ba2 Bg8
1N2BBr1/P1nNQr2/K6q/NB3Q1P/3rRR1p/7r/2q3n1/1kBnB1N1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 h4 c4 Bd7 cxd5 Bc8 Ke2 g5 Bb2 Bd7 Be5 Bg7 Bd6 Be5 Ke1 Bg3 Bb4 Be6 Bc5 Bf7 Ba3 Bh5 gxh5 g4 Bc1 Bd6 Bc4 g3 Ba6 g2 Bf1 Bg3 hxg3 Qc8 Na3 Qd7 Nb1 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Kd4 f4 c5 a4 e5 f6 b6 f7 c4 f8N c3 g4 c2 a6 e4 d6 e3 a7 e2 f5 Kd3 g5 Nf6 d7 Rg8 g6 Rg7 a5 Nd5 a6 Re7 g7 Nb4 g8Q Rh7 f6 Qe8 f7 Nd5 Qg5 Nb4 Qe7 Na2 Na3 Qd8 Nc4 Nc6 Na5 Qc8 d8N Qe6 Rh2 Qh6 Nd7 Rb8 f8B Rf7 a8B Nd4+ Ka4 Rb7 a7 Ne6 Kb5 Nc3+ Ka6 b5 Ndc6 b4 Ra4 b3 Rf4 b2 Ncb8 Rb4 Bc6 b1R Qe1 R1b2 Qf2 Rd4 Re4 Rb5 Qf5 Rb3 Ba4 Nd1 Rh3+ Qe3 Rf3 Rc3 Rf2 Qh6 Rff4 Rb3 Nb6 Rc3 Be8 Ra3 N6d7 Rb3 Ba3 c1Q Bb2 Qb1 Bc1 Kc2 d3 e1N Be2 Rc4 d4 Rh3 d5 Rd4 d6 Qb2 Bb5 Kb1 Ne5 Qc2 d7 Rg3 d8B Rh3 Ne2 g1R Ned7 Rg8 Ng1 Ng2 Bb6 Ra4 Bf2 Rd4 Be1 Nc7+
K1RQ1R1n/3prB2/1B1PBk1r/4bNb1/1Rp5/PR5R/2nQ1bB1/q2N4 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 b3 c4 b2 a6 Bb7 a7 Ba6 Na3 Bb5 cxb5 b1B Qg4 Bd3 Nb1 Be4 Qf3 Bb7 Qd1 Ba6 bxa6 Rh7 Nc3 Rh6 Nb1 Rh8 Ke2 Kf7 Kd3 e5 Kc4 g5 Kb5 c5 d4 c4 h4 g4 f4 g3 a3 e4 d5 e3 h6 g2 f6 e2 h7 e1B d6 Kg6 h5+ Kf5 h6 Qc8 Kb6 Bc3 f7 Kf6 f5 Bb2 Be3 Nc6 Nf3 g1B Qd2 Nb8 Rh3 Nc6 Nc3 Nd8 Nd1 Ne7 Nh4 Be5 Rb1 Bf2 Bg2 Rg8 h8Q+ Rg7 h7 Beg3 Rb3 Ke5 f6 Rg4 Nf5 Bg7 f8R Rg5 f7 Bf6 Rg8 Nb7 f8R Rb8 a8B Rh5 Ka7 Ng6 Bb6 Nd8 Bad5 Rh6 Bf7 Ne6 Bd5 Nd4 Bde6 Qc5 Rc8 Qc6 Rgf8 Qh1 Rb4 Bf4 Rhb3 Nc2 Qg8 Qf1 h8R B4g5 Rh7 Ra8+ Kb7 Nh8 a7 Rg6 Rhh3 Rh6 Rc6 Rc8 a8B Re8 Rc8 Re7 Kb8 Bg7 Bg2 Kf6 Ka8 Qg1 Qh7 Rg6 Qh4 Rh6 Qe4 Qe1 Qc6 Qe5 Qc7 Qa1 Qd8 Ke5 Rc5+ Kf6 Bg8+ Kg6 Rc8 Be5 Bgf7+ Kf6
1N1QQRR1/Pq1r2nB/r2np2P/1N6/5Q1p/Q3R1bk/RB2n2b/3R1K2 w - - 0 1 legal: proof: c4 a5 h4 h5 g4 g5 hxg5 f5 b4 d5 bxa5 h4 cxd5 Kd7 e4 Ke8 exf5 Be6 Bc4 Bf7 Bf1 Bh5 gxh5 Qc8 Ke2 Qd7 Ke1 Qd8 f4 Kf7 a4 c5 d4 b5 d6 b4 f6 Ke6 f5+ Kf7 d5 b3 h6 e6 d7 b2 a6 c4 a7 c3 a5 c2 d6 Rh7 a6 Qc8 d8R Ne7 d7 Rg7 g6+ Kg8 f7+ Kh8 f6 Qb7 Qf3 Nd5 Na3 b1N Bd3 Qb3 Qf4 Ne7 Ne2 Qd5 Ra2 Nc3 Nb5 Ne4 Rh3 Nbc6 Re3 Nf5 Ned4 Ned6 Bb2 c1B Kf1 Bd2 Bc2 Be1 Be4 Bg3 Bc2 Rg8 g7+ Kh7 Bd3 Be7 f8R Kg6 f7 Kh5 Bb1 Rh8 g8R Ng7 Bh7 Bf6 Ne2 Be5 Ned4 Na5 Nc6 Nb3 Nb8 Nd4 Rc8 Qe4 d8Q Qb7 Rc1 Ne2 Rd1 Bh2 Re8 Bg3 f8Q Bh2 Qfe7 Bg3 Ref8 Bh2 Qf2 Kg4 Qee8 Beg3 Qf4+ Kh3 Nd7 Rc8 a8Q Rc7 Nb8 Rd7 Qa7 Rc7 Qc5 Rc6 a7 Ra6 Bd3 Rh7 Qa3 Nh5 Be4 Rd7 Bh7 Ng7
bb3q2/3rrRK1/1kN1B2P/rB1RBQp1/n1B5/1B3P1p/7N/NQ2bN2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 dxc5 b4 h5 b3 axb3 Qc7 b4 Qb6 b5 Qd8 g4 Qb6 Rh2 Qg6 hxg6 h5 Rh1 h4 Bd2 Nc6 Qc1 Nd8 Qd1 Ne6 Bf4 Ng7 Bc1 Nh5 gxh5 Rh7 Rh2 Rh6 Rh1 Rh8 Kd2 Kd8 Ke3 Kc7 Kd4 d5 Ke5 a5 b4 h3 c4 d4 f6 d3 f7 d2 b6+ Kb7 h6 a4 b5 e6 c6+ Kb8 c7+ Kb7 c5 a3 g7 a2 Nf3 Ra5 c6+ Ka8 b7+ Ka7 b8N Be7 f8Q Ba3 Na6 Rh7 Bc4 Ra4 b6+ Ka8 b7+ Ka7 b8N Rb4 Qf5 Rb2 Nh2 Kb6 f3 Bf8 Nb4 Ka5 Nc2 Nf6 g8B Rb7 Bb2 Kb6 Bf7 Bd7 c8B Ne4 c7 Nc3 Kf6 e5 Nc6 e4 Qe1 d1Q Nd2 e3 Ndf1 Ra7 B8a6 e2 c8B Bd6 Bab5 Na4 Be5 Bb8 Qb4 e1B Qb1 Be8 B8e6 Re7 Kg6 Qd6 Bb3 Rh8 Kg7 Bd7 Rg1 Rd8 Rg4 Bc8 Rd4 Bb7 Bec4 Ba8 Rd5 Ree8 Be6 Qb4 Qb2 Rd6 Rc1 a1R Qb1 Ra2 Na1 Rd7+ Kg6 Qf8 Rcd1 Rb7 Rd7 Ra7 Rf7 Rd7 Rd5 Ree7 Kf6 Nc3 Kg6 Ra5 Kh7 Na4 Kg6 Qd8 Kg7 Qf8+
1kr2K2/N2B3R/2brqP2/rp3B2/5BB1/1B1p1R1R/Q2qP1Qb/2n1N2R w - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 gxh5 f5 d4 c5 dxc5 Nf6 exf6 Nc6 b4 Ne7 bxa5 Ng8 Kf2 d5 Ke3 Kd7 Kd4 Kc7 Ke5 g5 a4 d4 h4 d3 c4 b6 h6 f4 h5 f3 c6 g4 c5 g3 a6 f2 a5 g2 a7 Ne7 a6 Bb7 Ke6 Bc8+ Kf7 Ng6 h7 Bb7 h6 Rb8 a8Q Bd6 a7 Ne7 Nf3 g1R Ne1 Ba6 Bf4 Bb7 Qb3 Nf5 Nc3 Re8 h8R Rc8 h7 Be5 Qa2 Bd6 Bh3 f1Q Bg4 Rb8 Nb5+ Kc8 c7 Re6 Rh3 Nd4 Rf3 Be4 Qc6 Rg2 a8B Rb7 Qcd5 Nb3 Na7+ Kd7 c8B+ Kc7 c6 Qe7+ Kg8 Kb8 Bd7 Rc7 Qg5 b5 Bf5 Rg1 Qg2 Be5 Rb1 Qb4 Rd1 Qd2 Kf8 Nc1 Bb7 Rd6 Bbc8 Rb7 c7+ Ka8 Bde6 Bc6 Bb3 Qf2 Bcd7 Qb6 c8B Kb8 Bg4 Rc7 Bdf5 Rh1 Bcd7 Qa6 Nc2 Rh4 Rh1 Qb6 Ne1 Qa6 Bh6 Bh2 Bf4 Qb6 Rg8 Qbe3 h8R Qe6 Rg5 Rh7 Rh5 Re7 R8h7 Rg7 Nc8 Ra7 Rh4 Ra5 Na7 Re7 Rhh3 Rg7 Bc8 Rc7 Bd7 Rc8+
1kBK4/2RrP3/3RBB2/1NR4b/6n1/qpp3QQ/NP2R2q/1brBb1B1 w - - 0 1 illegal: No possible last move
NQ1B2KB/nPrk3B/7N/4b1R1/Rn1p2b1/QB4pr/3R1bRP/6rR w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Bb7 dxc5 Qb6 a4 Ba6 axb5 a4 Bc4 Qa5 bxa5 Bb7 Bf1 Bc8 Kd2 e5 Kc3 g5 Kc4 e4 Kd5 a3 c4 e3 f4 e2 a6 e1B f6 a2 b6 d6 a7 g4 b7 g3 f7+ Kd8 c6 Bc3 h6 Kc7 c5 Bf5 h7 Na6 Bc4 Bc2 Ke6 d5 f5 d4 f6 Be1 Qf3 Bg7 f8Q Bd3 Kf7 Ne7 Na3 Bf1 Bg5 Nb8 Bb3 Nd5 Rd1 a1R Rd2 Rb1 Nh3 Bg2 Nc4 Nd7 Nb6 Ra1 Nf2 Ra6 Ng4 Bh3 Nh6 Rd8 a8R Ra2 Ra4 Rb2 Na8+ Kb8 Qe8 Rg8 h8B Nb4 Qc3 Na6 c7+ Ka7 c8R Bf2 c6 Bg4 c7 Nb6 Qc1 Rc2 Qa3 Rc1 Rb8 Rf1 c8B Rg1 Bf5 Rc8 Bh7 Rc6 Rd8 Nc8 Rd5 Kb8 Bh4 Nb4 Rg5 Rd6 Qe5 Na7 Qf4 Rc8 Qe5 Rcc1 Kg8 Rc7 f7 Rb6 Qf4 Be5 f8R+ Bc8 Rf6 Bg4 Rc6 Ra6 Rcc2 Rac6 Rg7 Rg6 Bd8 Rg5 Rb2 Rh5 Rg5 Rh3 Ra2 Be3 Rg2 Bf2 Rd2 Rcc1 Qf8 Rc6 Bdf6+ Rc8 Nb6 Kc7 Na8+ Kc6 Qd8 Rc7 Qb8 Kd6 Bd8 Kd7
7R/1p1PB1r1/qB1KpNN1/P5NN/Bk4n1/bNR1Q1B1/r3b3/3bQ2b w - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Kd7 cxd5 a4 e4 a3 d6 Kc6 d7 Nf6 bxa3 Na6 a4 Ng8 a5 Nb8 f4 Kd6 f5 e6 d5 Ke5 f6 Qe7 fxe7 Na6 d6 Nb4 Bc4 Nd5 exd5 Kf5 Bf1 Kg6 Kd2 Kf5 Kc3 Ke4 Kb4 f5 Kc5 h5 d8B f4 e8N c6 a4 h4 g4 h3 g6 h2 a6 f3 g7 f2 g5 Rh3 a5 Rh6 g6 Rh7 a7 Rh3 Nf6+ Ke5 Bf4+ Kf5 Nh5 Ke4 Bb5 f1B Nd2+ Kf5 Ba4 Re3 Nh3 Re1 Ng5 Be2 Ra3 Bd7 Be7 Nh6 g8N Ng4 g7 Rg1 Ngf6 Rd8 a8Q Be8 Be3 Ke5 g8N Bg6 d7 Bc2 Qe1 Bcd1 d6 Rg2 Rf1 h1B Nb3 Rc8 d8B Rc7 Qa7 Rd7 Kb6 c5 Bf2 c4 Kc5 c3 Bb6 c2 Rg1 Rh2 Rg3 c1Q+ Rc3 Qc2 Ra1 Qd3 Bg3+ Kf5 Rb1 Qa6 Rbc1 Bf1 Rb1 Ra2 Rb2 Bb5 Rh2 Bbe2 Rh4 Rd8 d7 Re8 Nf4 Ke5 Rh8 Rb8 N6h5 Re8 Kb4 Ra8 Ng6+ Kd5 Nc5 Kd4 Ngf6 Re8 Ra3 Ra8 Nb3+ Kd3 Kc5 Rb8 Kd6 Kc4 Nd2+ Kb4 Re3 Rc8 Rc3 Rc4 Nb3 Rf4 Nfe4 Rf7 Nef6 Rg7 Qb8 Bc6 Qc7 Bg2 Qc6 Bh1 Qf3 Qb5 Qd3 Qa6 Qe3 Ka3 Kc7+ Kb2 Bd8 Bb4 Be7 Ka3 Rc5 Bc3 Kd6 Bb2 Rc3 Kb4 Nfe4 Bc1 Nef6 Ba3
kr1B4/3qpP1B/b3KnB1/N3Np1N/2Q3q1/b2PR3/1qB4B/1RNbQ3 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 Bh6 h4 Nc6 hxg5 Bd7 f4 Bc8 e5 Kd7 g6 Ra6 g5 Bf8 g7 Nd4 g6 Rf6 exf6 Ke8 Bd3 Ne6 Bf1 Ng5 fxg5 Ba6 Bd3 Bb7 Bf1 Bc8 Ke2 Kd7 Kf3 c5 Kf4 Kc7 Ke5 Kb8 b4 h5 d6 c4 d7 a4 b6 h4 f7 a3 b5 a2 b7 h3 Ke6 c3 Ne2 h2 Na3 c2 Nc4 Qc7 Rb1 a1Q Na5 Qd8 Qe1 Ka7 b8N Nh6 g8N Qa4 b6+ Ka8 b7+ Ka7 g7 Qb5 g6 Qa4 Nf6 Rg8 Nh5 Qa3 Nbc6+ Ka6 b8Q Qa2+ Qb3 Qe8 Ne5 Ka7 Qc4 Ba6 d8B Ng4 d3 Qa3 Bf4 Qb2 Nc1 Nf6 Be2 Ka8 Bd1 Qd4 Rg1 h1B Bh2 Qg4 Rg3 Bf3 Rh3 Rh8 g8B Bh6 g7 Bd2 Bh7 Bb4 g8B Ba3 Bg6 Qa4 Ne2 c1Q B8h7 Qb2 Bc2 Qab5 Nc1 Bd1 Re3 Qa4 Bb6 Rb8 Bd8 Qd7+
1kNbQ3/4P3/pB2QR2/1bPRn1nq/1NQ1Nb2/1N1qQN2/3K2p1/1q3B2 w - - 0 1 illegal: No possible last move
B2Nnb2/Q1qB4/1Q2BN2/1P1R1np1/1N3Bbk/5pn1/3PNNK1/3bn1R1 w - - 0 1 illegal: No possible last move
1B1n3R/bN2pb2/Q2N4/6Qb/r1B1r3/1P2QB2/kP1Qp1K1/1bBrR2B w - - 0 1 illegal: Other
5B2/2Bp2r1/4qRQq/b2PqQqB/Q1PK4/1R2QBpN/B3b3/3Nk2b w - - 0 1 legal: proof: h4 b5 b4 f5 g4 a5 gxf5 c5 bxc5 g5 a4 g4 f4 b4 e4 g3 e5 Na6 f6 Nc7 f5 Nb5 axb5 Nh6 Rh2 Nf7 Rh1 Ng5 hxg5 Qc7 Ra3 Kd8 Ra1 Ra6 f7 Rf6 exf6 Qb8 Ra2 Kc7 Ra3 Bb7 Ra2 Qd8 Ra1 Bc8 Ke2 h5 Ke3 e5 d4 h4 b6+ Kc6 g6 Kd5 g7 e4 g8B b3 b7 b2 b8Q h3 c6 h2 c7 a4 Nc3+ Kc6 Ra3 b1Q Rb3 a3 Qa7 a2 Be2 a1Q Nh3 Bc5 f8B Rh7 f7 Qaa2 f6 Bb4 Rf1 h1B Bh5 Bb7 c8B Qa3 Qd3 Qba1 Nd1 Kd5 Qa4 Rg7 c3 Bc6 Bb7 Ba5 Qe2 Qb4 Ba3 Qbb6 Bad6 Qa3 Bc7 Qd6 Qg4 Bf3 Qg6 Be2 Ba6 Bf3 Be2 Bb5 Rf2 Bh1 Bef3 Be2 c4+ Ke6 Bh7 Qa6 d5+ Ke5 Be7 Qg8 f8Q Qe6 f7 Qf5 Bfg4 Qg5+ Rf4 Qc6 Qe8 Qa6 f8Q Qc6 Rc3 Qa6 Bf3 Qc6 Kd2 Kd4 Qff5 Qa6 Kc2 Qac6 Rb3 Qb6 Nc3 Ke3 Bf8 Qbc6 Kb2 Kd2 Nd1 e3 Qe7 Ke1 Qee5 Bb6 Kc3 Ba5+ Kd4 Qa6 Qge8 Qdh6 Qfg6 Qd6 Rf6 Bd3 Qef5 e2 Qee4 Kd2 Rb6 e1Q Rb3 Bf1 Qe7 Qee6 Qee8 Be2 Qe7 Qg8 Qe3+ Ke1 Qfd3 Qdf4+ Qge4 Qd6 Qe8 Bg2 Bhe4 Rh7 Qg6 Rg7 Bf5 Qge6 Qde4 Kf1 Qe5 Ke1 Bb1 Bh1 Ba2 Qh4+ Q5f4 Q4g5 Qff5 Qde5+
4Rr1n/k1bNBrQ1/P2R2B1/1R3pBP/NR3pqQ/3B1Brb/6p1/1K6 w - - 0 1 illegal: Other
n3k3/1q5P/pn2qp1B/b3RQ2/KNqNBR2/NP4p1/NB1NB1r1/4Q3 w - - 0 1 legal: proof: c4 d5 cxd5 g5 g4 b5 f4 h5 a4 e5 fxe5 a6 axb5 Ra7 Na3 Rb7 Nb1 Rb6 Qc2 Rbh6 Qd1 h4 h3 Rh5 gxh5 g4 Ra3 g3 Ra1 Bg4 hxg4 Bd6 Bh3 Ba3 Bf1 Bf8 d4 c5 Kd2 h3 Kc2 h2 Kb3 f6 e4 c4+ Ka4 c3 g5 c2 h6 Bb4 e6 Ne7 g6 Qb6 d6 Bc3 h7 Qc6 b3 Qa8 e5 Nbc6 d7+ Kf8 d8N Ke8 b6 Kf8 d5 Qa7 b7 Qc5 b8B Na7 d6 Nec8 e7+ Ke8 g7 Qf2 g8N Kd7 Bb2 c1Q Ne6 Qfe3 Qd3 Qb6 Nd4 Qc5 e8B+ Kd8 d7 Qd2 e6 Qe3 Na3 Qh5 Re1 Qc5 Be2 Qd2 Ngf3 Qh6 Bg6 Qe7 Bf4 Qhg7 Rhf1 h1Q Qf5 Qef7 Bh6 Qg2 Nd2 Qh1 Ne7 Qh4 Nd5 Re8 Nb4 Nb5 Rf4 Nc7 Na2 Ke7 d8N Ba5 N8c6+ Kf8 Rb1 Na8 Ncb4 Re7 Rbf1 Ke8 Re1 Rc7 e7 Rc2 Qh5 Qg8 Be4 Qh1 Qg5 Qc4 Qf5 Qge6 B4d3 Qb7 Be4 Kd7 e8Q+ Kd6 Qeh5 Kd7 Qh1 Ke8 Rd1 Rc3 Qe1 Rf3 Rc1 Rf2 Rc3 Rg2 Rc1 Qd3 Rc5 Qdc4 Re5 Ncb6+
3N1r2/4KNP1/B4B1R/2QrqN1P/3Rp1pn/Q3B3/1n3N1p/1r2kNBn w - - 0 1 legal: proof: a4 c5 d4 b5 axb5 g5 h4 Bb7 h5 Bf3 Ra3 Be4 Ra1 Bg6 hxg6 Qc8 Rh4 Qc7 Rh1 Qd8 dxc5 h5 e4 f5 exf5 h4 g3 h3 Bc4 g4 Bf1 Bg7 Rh2 Bf6 Rh1 Bh4 gxh4 Rh5 Qd2 Rh6 Qd1 Rh8 Kd2 d5 Kd3 Kd7 Kd4 a5 Ke5 d4 f4 d3 c4 a4 b4 d2 c6+ Kc7 Ke6 Kb6 g7 a3 f6 a2 f5 Nd7 f7 Qf8 f6 Ra5 c5+ Ka7 b6+ Kb8 b5 Ra3 c7+ Kb7 c8N Rh7 c6+ Ka8 b7+ Kb8 Qb3 Kc7 b8B+ Kd8 b6 d1R b7 Nh6 Bh2 Qg8 b8N Ne5 Nd6 Kc7 Nf5 Rh8 Ba6 Qe8 f8B Ra5 f7 Rad5 Qa3 Kb6 c7 Nd3 Nd2 Nf2 Nf1 Qb5 Bg5 Rb1 Bf6 Rg8 Qc5+ Ka5 c8N Ka4 h5 Kb3 Ncd6 Rh8 Qa3+ Kc2 Nc6 Kd1 Nd8 Ke1 Bf4 h2 Be3 Qb2 Nh3 Qe5+ Kd7 e6 Ke7 Rg8 Rg1 Nh1 Rg2 Rh8 Rd2 Rg8 Rd4 Rh8 N5g3 Rg8 Nf2 Nf5+ Ke8 Nh4 Ngf5 Qe4 Kd7 e5 Ke7 Qf4 Qc5 e4 Qa3 Rc1 Rb1 a1N Rb6 Nc2 Kd7 Rc5 Bg5 Rh8 Ra4 Rb1 Bd4 Qc1 Bfe7 Rg8 f8Q Rd5 Nd1 Ng3 Bg1 Rb4 B5e3 Nh1 Nf2 Qa1 Ke6 Rb2 N6f7 Rb1 B7g5 Rh8 Qfc5 Rf8 Ke7 Nb4 Rh6 Nd3 Bf6 Qb2 Rc4 Qb8 Ra4 Nb2 Rd4 Qe5+
nn3Nb1/pr1RNR2/1N2N3/k2B1p2/2QK1R1B/2nP2R1/q2P3p/R1n2Q2 w - - 0 1 legal: proof: f4 d5 a4 e5 fxe5 b5 axb5 d4 g4 d3 cxd3 Bc5 g5 Bf8 h4 f5 Bh3 Na6 Bf1 Be7 Nc3 Bf6 gxf6 g5 Nb1 g4 Qa4 Ne7 Qc2 Rg8 Qb3 Rg5 hxg5 Ng8 Qd1 Bb7 Rh3 Qe7 Rh1 Nh6 Rh5 Kf7 Ra3 Rh8 Rc3 Ng8 Rh1 Ke8 Ra3 Qd8 Ra1 Bc8 Kf2 Kd7 Ke3 c5 b4 Kc7 f7 Kb6 f8N h5 e6 h4 g6 h3 e7 h2 e8Q g3 g7 g2 Nf3 g1N Ba3 c4 Nc3 Qc7 Kd4 Qb8 e4 Nc7 e5 Bb7 e6 Na6 e7 Qc8 Qf7 Rh5 e8R Nc7 Bg2 Rh3 Re3 Ne8 Qf1 Qb8 Ng5 Nc7 Bd5 Rh6 Rg3 Qc8 Nge6 Nf6 g8N Nh7 Ne7 Bc6 Na4+ Kb7 b6 Ka6 b5+ Ka5 b7 c3 b8R c2 b6 c1N b7 Nf6 Nb6 Nd7 Ra8 Qe8 b8R Rh7 Rd8 Nb8 Rd7 Rg7 Qg8 Qf7 Bd6+ Ba4 Be5 Rh7 Bf6 Rg7 Bh4 Nge2+ Kc4 Nc3 Kd4 Kb5 Rhg1 Bb3 Rg4 Ba2 Rf4 Ka5 Rgg4 Nba6 Rb8 Na8 Rbb7 Nb8 Rg3 Qh5 Nbc8 Qd1 Nb6 Qb3 Nec8 Qb1 Rf7 Qb2 Ne7 Qa3 Rc7 Bc4 Rb7 Qa2 Rd7 Ka6 Rf6 Rg6 Ng7 Bb3 Be6 Qa4+ Nc4 Qa5 Nb2 Qa2 Na4 Bd1 Bc4+ Ka5 Qe6 Nc7 Qc6 Bh5 Bd5 Na8 Qc8 Rh6 Qc4 Bg6 Rf7 Bh7 Qh3 Bg8 Qf1 Rc6 Nb6 Rc7 Nge6 Rb7
1kB2R1B/p1q5/nP2RR1r/B2q4/1p3Q1q/1r1pNnR1/3B3P/1Q2NKR1 w - - 0 1 legal: proof: e4 b5 c4 c5 g4 f5 exf5 h5 gxh5 e6 b4 Rh7 bxc5 Nf6 d4 Nd5 a4 Ne7 a5 Bb7 d5 Rh8 Be2 Bc6 dxc6 Ng8 Bf1 Bd6 Ke2 Bc7 Ke1 Bb6 axb6 Qc8 c7 Qd8 c8R d5 f4 Kd7 f6 g5 f7 d4 f8Q d3 f5 e5 h6 g4 h7 g3 f6 g2 c6+ Ke6 c7 Kd7 f7 e4 c5 e3 c6+ Ke6 Bd2 Qe7 Re8 Kd6 c8R e2 c7 Nf6 Nc3 Na6 Nf3 g1Q Nd5 Qe3 Bh3 Ne4 Rf1 Qc5 Ne3 Rg8 h8B Rg6 Rb8 Qc2 c8R Qa2 Rc4 Ng5 Rg4 Qe6 Qh6 Qa2 f8B Kc6 Rb1 Qg7 Bfb4 Qd5 Ba5 b4 Re7 Qgf7 Rf8 Rc8 Rg2 Rc7 Bc8 Rf6 Kf2 e1Q+ Kg1 Qh4 Rg3 Rg6 Qb3 Qff4 Re6+ Qfd6 Rbe1 Rf6 Qb1 Rg6 Bd7+ Kb7 Bc8+ Kb8 Kg2 Qdf4 Rg1 Rc5 Ref1 Rc3 Rf2 Qf7 Kf1 Qc7 Ne1 Rb3 R2f6 Nf3 Qf4 Rh6
B1Nn1r2/NRbB1R2/PB2pp2/Rr6/BQ1Rn1P1/6R1/p1Q1p3/1K3kq1 w - - 0 1 illegal: Other
2BQ2RR/Bp4BB/N1k4p/K1p3rb/2Pb3r/2PQ1N1b/3rp2B/3R1R2 w - - 0 1 legal: proof: f4 a5 c4 f5 e4 c6 exf5 a4 g4 a3 f6 Ra6 f5 Qc7 f7+ Kd8 bxa3 Qd6 a4 Qd3 a5 Qc3 dxc3 Ra8 g5 Na6 h3 Nf6 h4 Nc5 Qd2 Nce4 gxf6 g5 Qc2 g4 Qd1 Ng5 hxg5 g3 Kd2 Kc7 a4 d5 a6 e5 a7 h6 a5 g2 g6 d4 g7 d3 g8B e4 a6 Kb6 Nf3 g1R Bh7 Rg6 Na3 Rg3 Nc2 Rg7 Bh3 Rg6 Rf1 Bd6 f8R Be6 f7 Rb8 a8R Rg5 f6 Rg3 a7 Rg6 Rg8 Rd8 f8B Rg3 f7 Re8 Nb4 Kc7 Bg7 Be7 f8B Bf6 Bd6+ Kb6 Na6 Rg5 Bh2 Bd4 Rb8 Rf8 a8Q Rf4 Rbe8 Rh4 Qd8+ Ka7 Qe2 e3+ Kd1 d2 Kc2 Bc8 Kb3 d1B+ Kb4 c5+ Ka5 Bg4 Qd3 Bh5 Rb1 e2 Ref8 Ba4 Bc8 Bd7 Bcf4 Be6 Rbd1 Bh3 Be4 Rh7 Rh8 Rf5 Rfg8 Rg5 Bf8 Rhg7 Bh7 Rd7 Bg7 Rc7 Ka4 Kb6 Bd6 Kc6 Ka5 Rd7 Bb8 Rdd5 Ba7 Be3 Qc2 Rd2 Qcd3 Bd4
3N1B2/2p2rQ1/k1B1Q3/1R2NpP1/n7/2K1NPp1/Np1nprp1/R1RR1N2 w - - 0 1 illegal: Other
1nqb1r1k/N1rn1Rr1/3N1R1B/4q1B1/1P1P1QQ1/3B3q/b6B/QBQ1K2b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 Kg7 d4 h5 f4 a5 g6 e5 b6 c5 b7 c4 d6 a4 d7 h4 f6+ Kh6 g7 Kh7 f5 c3 f7 h3 g5 a3 f6 h2 Ne2 e4 Ng3 a2 Bd3 c2 Nc3 Qe7 d8B Qc7 Nb5 Bh3 Rf1 h1B Na7 Qc8 Nf5 e3 Nd6+ Qf5 g6+ Kh6 Rf4 Be7 f8Q e2 f7 Qe6 Rf6+ Qe3 Bc7 Rh7 Qc8 Bd8 f8B Be6 Rf7 Nf6 g8B+ Rg7 Bh7 Nfd7 Be7 Kh5 Bg5 Qh3 Bh6 Bc4 Bcg5 c1Q Rb1 a1R Rb3 Nc6 b8Q Rb1 Ra3 Ba2 Ra6 Qc4 Rb6 Rc1 Qa6 Rc3 Qc1 Rc2 Qaa3 Qa6 Qab2 Qc8 Qba1 Rc5 Nb7 Rc2 Bh2 Rc4 Qbf4 Ncb8 Rbf6 Rc7 Nd6 Bc4 Kd2 e1Q+ Kc2 Qe5 Kd1 Ba2 Bb1 Rg8 g7 Rf8 Bhd3 Rg8 Nc6 Raa7 Kd2 Rf8 g8Q Rab7 Qh7 Ra7 Qhe4 Rab7 Ke1 Ra7 Rf5 Kg6 R7f6+ Kh7 Rf7+ Kh8 R5f6 Rab7 Na7 Rb6 Ne8 Re6 Nd6 Ree8 Qe2 Rg8 Qee4 Rg7 Qg4 Rf8 Qee3 Qb5 Qef4 Qe5+
1R2B1Qb/8/nnnb2RN/k7/PR3Pb1/q1N3Rr/q1Q1BK2/1rBRB2q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kd7 f4 b5 d4 g5 h4 c5 d6 Kc6 a6 Kb6 f6 e5 f7 e4 d5 b4 d7 g4 h6 c4 d6 g3 a7 e3 h5 c3 h7 g2 h6 c2 Rh3 b3 Be2 b2 Nc3 b1N Nf3 g1B Nh4 Qe7 d8R Nf6 d7 Ka5 Nf5 Qa3 Rg3 Bc5 f8B Nd2 Rb1 Ng8 Rb4 Na6 Bg7 Rb8 a8B Be7 Bc6 Nc4 Bf6 Qa2 Bh4 Bf6 Kf1 Ne7 Rdg8 Rb7 d8R Nb6 Be8 Nc6 R8g6 Bg7 Rdd4 Be5 Qd3 Bd6 Qe4 Bf2 Rd1 Be1 Ba3 c1Q Qc2 Qca1 Bc1 Q1b2 Kg1 Qba3 Kf1 Rg8 h8R Bd2 Nb1 Bc3 h7 Be6 Nh6 Bg4 Kg2 Rf8 Rhg8 Bh8 Nc3 Rf5 Rf8 Rh5 Kf1 Bg7 h8Q Bd4 Bd8 Rh3 Qg8 Bh8 Bh4 Rb8 Bb5 e2+ Kg2 e1Q Be2 Qh1+ Kf2 Qe4 Bd7 Rb7 Rb8 Qh1 Be8 Bc8 Bf6 Bf5 Bd4 Bd7 Bde3 Bg4 Bed2 Nd5 Be1 Rb5 Rbd4 Rb1 Rdb4 Nb6
1bQq3k/1b1qN3/2B2R1B/1P1B1KB1/n1BqN1Q1/2r2nb1/r2P2Q1/3Qr1R1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b6 Kf7 Qf3 Kg7 Ke2 h5 Kd3 a5 Ke4 c5 g4 e5 b4 h4 d6 h3 b7 c4 g6 a4 d7 h2 b5 c3 g5 a3 Nh3 c2 Bb2 c1Q Qg4 a2 f4 Rh7 f6+ Kh8 f7 Ra3 f5 Bd6 f8B Nc6 b8Q Qc7 d8Q Nge7 g7+ Kg8 f6 Nb4 Qb7 Rb3 Bg2 Qa5 Rf1 h1Q Nc3 Qg1 Nd5 Nbc6 Nf2 Rh1 f7+ Kh7 g8B+ Kh8 g6 Bb8 Bh6 Nd4 f8Q Qc6 Rad1 a1R Qff3 Qd7 Qc6 Bb7 Qdc8 Qac7 Be6+ Qcd8 g7+ Kh7 g8B+ Kh8 Rde1 Ra2 Qd1 Rbh3 Ba3 Rc3 Bgf7 Nb3 Bd6 Ng6 Ne7 Nh4 Bc4 Nc5+ Kd5 e4 Ke5 e3 Kf6 e2 Bdf4 Rh2 Bfg5 Rh1 Qcf3 Be4 Qfg3 Bb7 Bc6 Na4 Ne4 Qe3 Bfd5 Qd3 Rf5 Nf3 Qg2 Qd4+ Kg6 Rg1 Rf1 e1B Rf6 Qc7 Kf5 Bg3 Rf2 Re1 Rf1 Qd6 Rg1 Qd7+
1n3k2/1qbB1r2/2P5/B1qb2rK/N4rNP/1Q4QN/nBR1RN2/1B1qN1b1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 g5 Kf3 e5 Kg4 d5 b4 a5 c4 d4 h4 d3 f4 a4 b6 a3 b7 e4 b5 a2 b6 d2 h6 e3 h7 e2 c6 e1R c5 Qd3 c7 Ra3 c6 Bc5 Nc3 Qe4 Na4 Qe5 Bd3 Qe4 Kh5 g4 f6 g3 f5 g2 f7+ Kf8 Nf3 g1B Bb2 Nh6 Rh2 Qc4 Rc1 a1Q Bb1 Bcf2 Rc2 Bc5 Re2 Rg8 h8N Rf1 Ne1 Qc3 Ng6+ Kg7 f8B+ Kf7 f6 Ra2 Ne5+ Ke8 Ng4+ Be6 c8B Nf5 Bd7+ Kf7 Nf2 Nd4 Be7 Bb4 Bd8 Kf8 f7 Ba5 Bc7 Nb5 Bd8 Kg7 f8N Bd5 Nh7 Kf7 Ng5+ Kf8 Ngh3 Qc5 Bc7 Nc3 Bd8 Ra3 Bc7 Na2 Bd8 Na6 b8N Rf3 b7 Rf4 Bc7 Bc3 Ba5 Be5 Rc3 Bd6 Qb3 d1Q Rc2 Rg7 Bc8 Bc7 Nd7+ Kf7 Qg3 Nb8 Nf6 Kf8 Bd7 Rg8 N6g4 Rf7 Nfd3 R1f4 Ndf2 Rgg7 Ba3 Qf6 Bb2 Qd8 Qb3 Qc8 Qg3 Na6 b8Q Rg6 Qb6 Qb7 Qb5 Nb8 Qbb3 Rg5+
2k3nB/3RRQQq/P3rb2/N4BBK/b2qBR2/qR5N/5P1n/1r1r2nB w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 b5 Kg4 e5 d4 c5 a4 c4 f6 b4 d6 b3 d5 e4 g6 b2 f7 e3 a6 h6 g7 e2 a7 e1Q a5 c3 a6 c2 Na3 b1N Bb2 c1R Qd4 Nd2 Bd3 Rh7 Be4 Qc7 Kh5 Bb7 g4 Rb1 g5 Bc8 g6 Nf1 Nh3 Qd2 Nc4 Nh2 Ra3 Qc5 Rb3 Nc6 Na5 Be7 f8R Ne5 Re1 Qa3 Rf4 Bf6 Qc3 Rb8 a8B Nef3 Qd4 Kd8 d7 Rd1 Bf5 Rb7 Re7 Ng1 Bc3 Kc7 d8R+ Bd7 Ba1 Rb5 Qb2 Qd4 d6+ Kb6 Qa2 Rb4 Bae4 Ba4 d7 Kc7 Qb2 Rb6 Qc3+ Rc6 Qc4 Rh8 Qf7 Re6 Rde8 Rb1 d8B+ Kc8 Rd7 Rh7 Ree7 Rh8 Bc7 Rd1 Rg4 Rb1 Bf4 Rd1 Bg5 Rb1 Kh4 h5 Rf4 Nh6 g8B Rh7 g7 Rh8 Bgh7 Rd8 Ra7 Rd6 g8Q+ Rd8 Qgg7 Rd7 Bh1 Rd5 Kg3 h4+ Kg2 Rd6 Rad7 Qe3 Bd3 N6g4 Bhf5 Nf1 Qh7 Bh8 Bde4 Rdd1 Be5 Qd4 Qh6 Ne2 Ng1 h3+ Kf3 h2 Bg2 h1Q Qhh7 Qh6 Bh1 Bg7 Qhg6 Qh7 Nh3 Nh6 Bef6 Ng8 Kg4 Ng1 Be5 Nh6+ Kh5 Nh2 Bef6 Bf8 Bh8 Bg7 Bc2 Be5 Bce4 Bf6 Qgg7 Ng8+
1rkb1QRB/2P2br1/n3K2q/4Q1Bb/2R3Q1/N2Q3r/1N1P1BB1/nQ2nq2 w - - 0 1 illegal: No proof kernel
3Nbbk1/2KR2b1/6Q1/rrqrR3/n1b4P/RN3R1N/N1P4b/QBN1B2n w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 e5 Kc4 g5 Kd5 a5 h4 g4 f4 e4 b4 d6 c6 a4 h6 g3 b6 g2 b5 a3 b7 e3 c7 e2 f6 e1B f5 a2 h7 Qe8 b6 Bf2 Qd3 Ra6 Nh3 g1R Bd2 Be3 Be1 Ra7 Nc3 Rg2 Ne2 Bg5 Nc1 Bd7 c8R Bf4 Rc7 Nc6 b8N B4h6 b7 Rd2 Na6 Qe7 b8N Nd8 Nc6 Bhg7 Nd4 Nh6 Ndb3 Be8 Rd7 Ng4 Nb4 Nb7 Kc6 d5 Kc7 d4 Bg2 Rg8 h8Q Ra5 Rf1 Rb5 Rf3 Nf2 Re3 Nc5 Re5 Nh1 Qg3 d3 Bf3 Rb6 Bd5+ Re6 Qg1 Na4 Qh7 Rh8 Qhg6+ Kg8 Bc4 Rh5 f7+ Kh8 f6 Rb6 Qd4 Rb5 Qa7 Rd1 Qag1 d2 Qd4 Bh6 Bd5 Bfg7 f8N Rg5 f7 Qc5+ Nc6 Rh5 Ne6 Bf4 Qb2 Bh2 Nd8 Bf8 Qc3 Qf2 Nb4 Ra5 Rb1 a1B Nba2 Bb2 Ra1 Qd4 Ne2 Rb1 Nec1 d1B Bc4 Be2 Nc5 Bh6 Nb4 Ba3 Ba2 Ng3 Rf5 Rb3 Bb1 Bg7 Ra2 Qf2 Qa1 Bc4 Rg5 Rd3 N5b3 Rd6 Rf5 Nh1 Rf3 Rhb5 f8R+ Bg8 R8f5 Bc4 Re5 Rdd5 Nbc6 Bb4 Ra3 Bbf8 Nb4 Kg8 Nba2 Qc5+
4nN2/1r3b1Q/q2b4/rQrRP3/3RP1NR/n1r3r1/1B1n1RN1/2NNKBk1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Ke7 d4 g5 h4 f5 b6 c5 b5 a5 h6 g4 d6+ Ke6 d7 Kd5 b7 Ke4 h5 a4 h7 f4 h6 g3 d5 a3 b6 c4 d6 g2 Ra2 f3 Qb3 c3 Qb5 c2 Bb2 Ke3 Nc3 Na6 b8N Nc7 b7 Nf6 Rh4 Nfe8 Rd4 Qf6 d8N Bh3 d7 Qa6 Ne6 Ra7 d8R Bd6 Nf4 Be6 Nd7 Bf7 b8N Rb7 Nf8 Rg8 h8Q Rg3 h7 c1R+ Rd1 Rc2 Rd4 Rh3 Nbd7 f2+ Kd1 Rg3 Nf6 Rh3 Qg7 Rf3 h8R Rg3 Ngh3 g1R Rh4 Rh1 Ng1 Rhh3 Qd7 Nb5 Qh7 Bc7 Qc6 Bb8 R8d5 Bd6 Bg2 f1N Ke1 Nd2 Bf1 Rc7 Nd3 Rb7 Nc1 Nb3 Nf3 Nd2 Kd1 Kf2 Ne1 Kg1 e4 Bc5 Ke2 Bd6 Nd1 Rc5 Ng4 Rgc3 Ng2 Rhg3 Ra1 a2 Ke1 Na3 Rb1 a1R Qb5 Ra2 Ra1 Nac4 Rb1 Ra4 Ra1 Ra5 Ra3 Rc2 Rf3 Rc3 Rf2 Na3
1QRQ1r1q/2Bn3b/1r6/Rr1PrRNP/n1N2rR1/K2nb2B/R2B3B/1k6 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 Kd6 d4 c5 Kd2 a5 Kc2 e5 Kb3 g5 f4 c4+ Ka3 c3 f6 e4 b6 e3 f7 g4 b5 e2 f5 e1R b7 g3 f6 c2 b6 g2 h6 a4 h7 Ra5 h5 Bh6 f8R Ne7 f7 Bf5 Rh4 Rb5 Rg4 Be3 Bd2 c1N Nh3 g1R Ng5 Nd3 Ra2 Nd7 Bh3 Rgf1 b8R Rf2 b7 Rf4 Ra8 Nc8 Ra5 Ncb6 b8R Rg8 h8B Bh7 Rc8 Qe8 Bf6 Qe5 Bd8 Qh8 Qb3 Rg6 Re8 Rg8 Re5 Rf8 Qb2 Bg1 Rf5 Re5 Nf3 Be3 Bc7+ Ke7 d6+ Ke6 Ng5+ Kd5 Rca8 Kc4 d5 N7c5 Rc8 Nbd7 Be1 Rb6 Qh2 Rb5 Nd2+ Kc3 Bg3 Rb6 Nc4 Rb5 Qg2 Rb6 Bh2 Rb5 Qg3 Rb6 Nb2 Kc2 Nc4+ Kc1 Qf3 Kb1 Qg3 Rd8 f8Q Rde8 Qe7 Rf8 Qd8 Rfe8 Rg2 Ree4 Qe7 Nf8 Qf2 Rb8 d7 Re5 Qd2 Rb2 Qb4 Rd8 Qb8 Rb6 Qg7 Rde8 Qg8 Rd8 Bd6 Rde8 d8B Nfd7 B8c7 Rd8 Qf8 Rde8 Qe7 Rf8 Qf6 Kc1 Ka2 a3 Qd8 Na4 Nd2 Kc2 Bb4 Kc1 Kb3 a2 Nc4 a1R Ra2 Rb1+ Ka3 Rb2 Bc3 Kb1 Bd2 R2b5
2N1n1Nq/1B1r4/1N2PR2/2Pn4/5n2/2bQQn1n/R2N1RR1/RK1krrBb w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 h4 Ke6 e4 d5 b4 f5 c4 g5 Kc2 a5 c6 a4 c7 g4 h6 g3 c5 f4 h7 d4 h5 f3 b6 f2 b5 g2 b7 a3 h6 a2 b6 Nf6 Rh2 Nbd7 b8R Be7 b7 Nf8 Ne2 g1R Qd3 Ng6 Bg2 f1N Be3 Bd6 Nd2 Ra7 Ra8 Rf8 h8N Nf4 b8R Bb7 c8N Ne8 h7 Bc6 Ng6 Rd7 Rh6 Nh2 h8R Re1 Rb2 Nf3 Bg1 Bc7 Bh1 Ba5 Rg8 Bc3 Nge7+ Rf6 Rg2 Bb7 Rc1 a1N+ Kb1 Nc2 Raa2 Nb4 Ng8 Nbd5 Rf2 Qe7 Rg6 Qh7 Rb6+ Bc6 Rgg2 Qh8 Rd1 Ba5 Nc3 Rf5 Na4 Bc3 Qc2 d3 Ra6 Rf6 Nab6 Bb7 Nf1 d2 Qd3 Rf5 Rc1 d1N Nd2 N1e3 Rd1 Nh3 Rc1 Ndf4 Rd1 Ned5 Rc1 Kf7 e6+ Kf8 e7+ Kf7 e5 Ke6 Qd4 Rf7 Qe3 Kf5 e6 Nec7 e8Q Ba8 Qd8 Ne8 Ra1 Bb7 R6a2 Rf8 Qd3+ Ke5 Qe2+ Kd4 Qe5+ Kd3 Rd1 Re4 Rdf1 Re2 Qeg5 Ke3 Qh6 Re1+ Kc2 Nh2 Qdh4 Ne7 Rg5 Nd3 Rff5+ Ke2 Qd4 Nc1 Kb1 Kd1 Qd3 Ne2 Rg6 Ba8 Qhe3 Rf6 Rfg5 Rf2 Rf6 Nef4 Bb7 Rf3 Ba6 Be4 Rg7 Ned5 Bb7 Rf2 Rg4 Bh1 Rg5 Nf3 Rg2 Re2 Rff2 Rf1 Qed4 Re3 Q4e4 Re2 Qee3 Ree1
1R2QnK1/3b2Q1/n1R1rbr1/3P2nb/Bq1BBB1k/1R1b1r2/R1NN1P2/6B1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 c5 Kf4 b5 Ke5 h5 a4 e6 g4 c4 d4 b4 a6 c3 f6 Kg6 a7 h4 d6 c2 d7 b3 a5 b2 f7 h3 a6 h2 Qe1 Rh5 Bb5 Bb7 Ba4 Nf6 Ra2 Ne4 Na3 b1B Bf4 c1N Nf3 Bc5 f8B Rh8 Bg7 Qe7 d8B Nd2 Nc2 Rh3 Bc7 Ne4 Nd2 Bc6 Rb2 Bd7 Rb3 Bb6 Qe3 Ne2 Rc1 h1B Bh2 Qb4 Bg1 Kf7 g6+ Ke7 d5 Nf4 g5 Bf3 Bh8 Bd1 g7 Rf3 g6 Ng5 g8Q Ba5 g7 Be2 Nd4 Bbd3 Nc2 Bb6 Qh7 Kf7 Qg8+ Kg6 Qe8+ Kh6 Kf6 e5 g8B e4 Qd4 e3 Bh7 Ng6+ Bf4 Kh5 Kg7 Kh4 Kg8 Bd8 Qg7 Nf8 Be4 Bf6 Rc3 Nc6 Rb3 Rb8 a8R Rb6 Rc8 Nb8 a7 Na6 a8R Bd1 Rc6 e2 Rb8 e1R Ra1 Re2 Ra2 Ree3 Rc5 Re6 Rcc8 Rg3 Rc6 Bh5 Qgf7 Ref3 Bg7 Be7 Bd4 Bf6 Qg6 Nh3 Qg7 Rg6 Bb2 Ng5 Bc3 Rd6 Bd4 Re6
n3K3/r1R3nQ/2R2Q2/2PB4/2Q1nR1b/kPrbn1Nb/4rQ1q/1Q1N2BR w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 a5 Kc4 e5 Kd5 Ke7 h4 g4 f4 e4 c4 e3 c6 e2 h6 e1N h7 d6 b6 g3 c7 g2 b7 a4 b3 a3 f6+ Kd7 f7 a2 f5 Nf3 h5 Qh4 f6 Nd2 c5 Ra7 h6 Be7 f8R Ne4 f7 Na6 b8Q Qh2 Qb4 Bh4 Ne2 g1R Bg2 Re1 Ng3 Re2 Be3 Ngf6+ Kc4 Kc6 Nc3 Bh3 c8R+ Rc7 Qb1 Nh5 Bg1 Ng7 Nd1 d5+ Kd4 Rg8 Ke5 d4 h8Q d3 h7 d2 Qc3 Kb5 Qc4+ Ka5 Kd5 Re7 Kc6 Nc7 Bf3 Na8 Rc7 Rd7 Rfc8 Rd3 f8Q Rc3 Qf6 Rd8 Qhf8 Rd7 h8Q Re7 Qh7 Rf7 Qd5 Kb4 Qc4+ Ka3 Bg2 Rd7 Qf2 Rf7 Qd6 Rd7 Rf8 Re7 Rf4 Rf7 Qf6 Re7 Ne3 d1B Bf3 Bc2 Nd1 Bd3 Bg2 Re6+ Kd7 Ra6+ Kd8 Ng5 Bd5 Ne4 Qc2 Nh5 Ke8 Ra7 Rc1 a1N Qb1 Nc2 Rc6 Ne3 Rc2 Ng5 Rd2 Bdf5 Rdd4 Bc2 Rde4 Bd3 Re7 Ne4 Rec7 Ng7+
3B2kr/3P2nr/Q1RQ4/6KQ/3bQ1bR/P2nrq1b/2NB2b1/NBn2Q1B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 b5 Kf4 c5 d4 h5 g4 h4 d6 c4 a6 h3 a3 h2 a7 e6 d7 c3 f6 c2 d5 b4 d6 b3 Nd2 b2 Bg2 b1B Ngf3 Qe8 d8B Bd7 Ne1 Rh7 Nb3 Bg7 g6+ Kf8 g5 Qf7 Bd2 c1N Nc2 Ba4 d7 Na2 Qh5 Qe7 f7 Bh6 f3 Kg7 f8Q+ Kh8 Rc1 Bg7 Bh1 e5+ Kf5 e4 f4 Qb4 Qd6 e3 Kg4 Qb6 f5 e2 f6 e1R f7 Nc6 f8Q Qb7 Qf1 Re3 Kf5 Rb8 a8Q Bd4 Qaa6 Nf6 g7+ Kg8 Kg6 Ne5+ Kf5 Nc3 Ra2 Qc6 Na1 Ne2 Rb2 Nd3 Rb4 Ne8 Rc4 Bb6 Rh4 Qg2 Qhf3 Bd4 Qe4 Kf7 g8B+ Kg7 g6 Qf3+ Rf4 Bb3 Bf7 Be6+ Kg5 Bh3 Ba2 Kh8 Rh4 Ng7 Nb4 Ra8 Rc6 Nec1 Nbc2 Rb8 Ne1 Bc2 Bb1 Bb3 Nec2 Bbe6 Qdf4 Beg4 Qd6 Nf5 g7+ Kg8 Bb6 Kf7 Bba5 Rbh8 Bd8 Kg8 Qde5 Rh5+ Kf6 Kh7 g8Q+ Kh6 Qe6 Kh7 Qf4 Ng7 Qd6 Kg8 Kg6 R5h7 Qh5 Qe2 Kg5 Qd1 Bf3 h1B Qe4 B1g2 Qf2 Bf1 Bh1 Bfg2 Qf1 Qf3
3q1RqR/1n6/1B4b1/1r2R1RN/rP1Q4/2r1Q1r1/R1KnrBPB/1BbN1k2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kf7 Kd2 e5 f4 c5 b4 h5 f6 Kg6 b6 Kf5 b7 Ke4 d6 a5 f7 h4 f5 h3 f6 a4 g6 c4 d5 a3 d7 a2 g7 h2 d6 c3+ Kc2 Rh3 Ba3 Ke3 Qd5 Kf2 Qe4 Rd3 Bb2 Na6 b8B Nc5 Ba7 Rb8 Ne2 Rb5 Ng3 Be7 Bb8 Nb7 Nh5 Rg3 Qd3 e4 f8R e3 f7 e2 Re8 e1R f8R+ Nf6 g8R Re2+ Qd2 Rd3 Rg5 Rg3 Kc1 c2 Qe3+ Ke1 Nc3 Ne4 Nd1 Nd2 Bd4 Bf6 Kb2 c1R Ree5 Rc3 Bc7 Rd3 Kc2 Bg7 Bdb6 Bh6 Bc5 Qf6 d8B Bf5 d7 Bg6 B7b6 Qe7 Bdc7 Qf7 d8Q Qg8 Rc1 a1Q Qdd4 Qa8 Ra1 Qe8 Ra2 Qd8 Rg1 h1R Bb8 Rhh3 Rh1 Ra3+ Qed3 Qe7 Qb2 Nc4+ Kb1 Nbd6 Rd5 Nb7 Nf4 Rd2 Rh5 Rf3 Bbd6 Bg7 Rhg5 Re3 Bd4 Rhf3 Rh8 Qd8 Nh5 Ra4 Bh2 Rg3 Bdc5 Bc3 Rde5 Re4 Qb3 Bb2 Qd6 Ree3+ Bd3 Ree2 Bf2+ Kf1 Qd4 Bc1 Bc2 Ba3 Qbe3 Rd3 Qb2 Nd2+ Kc1 Rh3 Bb1 Rf3 Kc2 Rg3 Qa1 Bc1 Qad4 Rc3+
3N1n2/R1QN3R/K1rB1Pq1/Q1qNr3/Pb1R1R2/n2N1B1n/bR6/kn5n w - - 0 1 illegal: No possible last move
1R1B1qb1/qR1n1P1N/R1rr4/2Nq2Q1/QqP1K1BQ/2k3b1/QR3q2/3Rn3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 Kf6 f4 d5 c4 e5 h4 a5 b4 g5 b6 e4 b7 g4 h6 a4 c6 a3 b5 a2 h5 g3 c7 g2 h7 Bd6 b6 Ra4 h6 Ra5 Nd2 Qf8 Qa4 Bb4 Nb3 Ra6 Nf3 Bc3 Nc5 Bb4 Ng5 Nc6 b8R Ne5 b7 Be6 c8Q Be1 Be2 Rc6 Bg4 Bg3 Rd1 Nf3 Qe8 Rd6 Qh5 Ne1 Rb1 a1Q Rb2 Rc6 Ra8 Rd6 b8R Qa2 Kd4 e3 R8b7 g1Q Ra6 Qf2 Bd2 Qa3 Ba5 Qb4 Bc7 Qg1 Qh2 e2+ Qf2 Rc6 Ke3 d4+ Ke4 d3 Bd8+ Ne7 Qe3 d2 Qeb3 Rg8 h8R Rg6 h7 Bg8 Qba2 Rh6 Nce6 Qa7 Nc5 Kg7 f6+ Kg6 f7 Kf6 Bb6 Ng6 f5 Ne5 Ba5 Nd7 Bd8+ Kg7 f6+ Kg6 Rc1 d1Q Ra1 Qdd2 Rd1 Qg7 f8Q Qf7 Nd3 Qg7 Qc5 Qf8 Nh3 Kf7 Qg5 Rg6 Bf3 Ke6 Bg4+ Kd6 Nc5 Nc2 Qe3 e1Q Ng5 Qf1 Qg1 Ne1 Qg2 Qf2 Qg1 Be6 Rg8 Rh6 h8Q Rg6 Nh7 Rh6 Rg5 Bg8 f7 Rg6 Nb3 Rf6 Rgb5 Rh6 Rb8 Rg6 R5b7 Rf6 Nd4 Kc5 Qg2 Rfd6 Qf6 Ne5 Qh4 Nd7 Qg1 Qh2 Qe3 Qhf2 Qeg5+ Be5 Qe7 Bg3 Qc2 Qb5 Nb3+ Kb4 Qeg5 Qbb6 Rdb1 Qb5 Qd1 Qbb6 Nc5+ Kc3 Qda4 Qb4 Rd1 Qd5+
4R1qq/3Rnr2/1nBK4/1b2r1Qq/3kBqN1/Q5NP/Q1PB1bQ1/r2QB3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 f4+ Ke4 b4 a5 c6 g5 Kc5 d5 b6 d4 h6 a4 f6 a3 b5 d3 f7 g4 h3 g3 b7 a2 c7 g2 h7 d2 f5 Ra3 b6 Rg3 f6 Bd7 c8B Qe8 Nc3+ Ke3 Bd3 Rg4 Nd5+ Kf2 Ne2 g1R Be4 Be6 Bd7 R4g2 Bc6 Rg5 Ng3 Bd7 Rb1 Bh6 f8Q a1Q f7 e5 Nf6 Ke3 Qg7 Ne7 Kd6 Kd4 Ng4 Rf8 h8B Rh5 Rh2 Be3 Re2 Bf2 Qg5 Qc3 Rb3 Qe3 Ra3 Qf4 Ra7 Qc8 Re3 Be8 Re2 Nd7 b8Q Qd8 b7 Nb6+ Ke6 Rh1 Qa8 Rf1 b8Q Rh1 Ba4 Bb5 Qbb7 Qc8+ Kd6 Qc4 Qg1 d1Q Bd2 Qa2 Re3 Qe2 Qg2 Ra1 Qd7 Qac4 Bg7 Qd1 Be1 Qdf3 Bh6 Qc8 Bf5 e4+ Ne5 Bd3 Ba5 Ng8 Bc6 Bb5 Qg7 Qh4 Qe6 Qhd8+ Rd7 Qe2 Qe7 Qd1 Qg4 Qf3 Re1 Qe2 Bf4 e3 Qeh4 Qd2 Qd1 e2 Bd3 Rf5 Qg5 Qe3 Bb4 Qe4 Bc1 Qf4 Qa2 Re8 f8Q Re7 Qe8 Ref7 Qee6 Qf6 Qa3 Qh8 Qea2 Qa8 Rh1 e1Q Ba5 Qee3 Re1 Qfh4 Ng4 Qf4+ Re5 Q4h5 Be1 Qe4 Re6 Re5 Bcd2 Qf4 Bde4 Qf8+ Ree7 Qfg7 Re8 Ne7 Bcd5 Qgf8 Bc6 Qfg8
2Q2nR1/1b1BBRqQ/k2b2qb/3N1K2/r4BR1/rB2BPP1/b3R2n/N2q4 w - - 0 1 illegal: No possible last move
r1B1B2B/2KQnBNb/2R3r1/2N1B1r1/3n4/k3PQ1P/3NRnr1/b1Nq1q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kf3 f5 Kf4 d5 c4 a5 b4 d4 e3 a4 e6 g5+ Ke5 g4 b6 g3 h3 f4 b7 g2 h6 a3 b5 a2 c6 f3 b6 f2 h7 d3 c5 d2 c7 Ra3 c6 Ra6 Bb2 Ra3 Bc4 f1Q Rh2 Ra7 Ne2 g1N Nc1 Nh6 Qf3 d1R Nd2 Ra6 Re2 Bd7 c8Q Rg8 h8B Rg2 c7 Bg7+ Kd5 Rg5+ Be5 Nc6 b8N Ng4 b7 Nf2 Bb3 Be8+ Nd7 Bg6 b8N Bh7 Kc5 Ra8 Kb6 Bf6 Rb1 a1R Na6 Ra2 Nf8 Qd6 Nc5 Qd3 Bh2 Ba1 B2e5 Qc2 Kb7 Re1 Bd5 Qd1 Rb6 Rc2 Bb2 Kd6 e7 Rg6 e8B Rg5 Bdf7 Rg6 Rb5 Ne7 Nfe6 Rg5 Ng7 Rg6 Qh5 Nf3 Bf6 Nd4 Qf3 Rb2 Rb3 Rba2 Rc3 R2a5 Nd7 Rag5 Nc5 Qh1 Qg4 Rg1 c8B Rg2 Rc4 Qhf1 Rc2 Nef5 Be5+ Ke7 Nce6 Qde1 Bf6+ Kd6 Kb6 Ne7 Qgf5 Ne4 Be5+ Kd5 Rc6 Qd1 Qh5 Nf2 Kc7 Rf6 Nc5+ Re6 Nde4 Kc4 Qhf3 Kb4 Nd2 Reg6 Qd7 Ka3
rB2Brb1/1rB2r1b/RQ2nN2/B2NR3/7P/1QB4k/5KqP/2nQ1Qbq w - - 0 1 illegal: No possible last move
1Bq1Q1KQ/bQQ5/3BR3/1P6/QPn3b1/NBrb2B1/1knn1N2/qn3rR1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 a5 g4 e5 f4 h5 d4 e4 b4 e3 g6+ Kf6 g5+ Kg7 d6 e2 Kd5 e1Q d7 a4 Nh3 c4 Na3 c3 Bc4 c2 Bb3 h4 Nf2 h3 Rg1 Qf6 d8B h2 Bc7 Nd7 Bb8 Qd8 Bb2 Qc3 Ke6 c1N d5 h1B d6 Nb6+ d7 Be4 Qc2 Ne2 Rae1 Rh1 f6+ Kh8 Kf7 Bd3 f5 Bc5 Bg3 Nc4 g7+ Kh7 Bc1 Qa1 Bcf4 Ba7 Bb8 Nc3 Re6 Nb1 g6+ Kh6 Qd1 Kg5 Qf3 Qc7 Qb7 Qc5 d8Q Bd7 Qf3 Qc8 Qb7 Rh3 Kf8 Rh1 f7+ Nf6 Qe8 Ne4 g8Q Ned2 f6 Kf5 g7 Rh3 Qh8 Rh1 Nc2 a3 Kg8 a2 f8B Rh3 f7 Rh1 Ree1 Kf6 Bfd6 Bg4 Na3 Kf5 Rg2 Rf1 Rg1 Kf6 Re7 Kf5 Rc7 Kf6 Rc6 Kf5 Qd8 Ke6 f8Q Kd5 Qdd7 Kd4 Qdc7 Kc3 Qe8 Kb2 Rc5 Bb6 Re5 Ra5 Re1 Ba7 Re6 Ra6 Qa5 Rc6 Qa4 Nb6 Qc7 Rc3 Qh1 Nbc4 Qhb7 Bgf5 Kf7 Bh3 g8Q Bg4 Qh8 Kc1 Qbc6 Qb2 Re2 a1N Kg8 Nc2 Re6 Qa1 Q6b7 Kb2
2rB2r1/1Bn1q3/3NBb2/PRQ2b1k/3NP1N1/1bR4b/N1K2nqQ/q1N1B3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 f5 h4 Kf7 d4 c5 Kd2 g5 a4 b5 d6 g4 d7 c4 h6 Kg6 h5+ Kg5 h7 f4 d5 c3+ Kc2 g3 d6 g2 a6 b4 a7 Kh6 a5 Nc6 e6 Qe8 d8N Be7 d7 Qf8 Bc4 Bb7 Bd2 Qg7 Rh3 Qg5 Ne2 g1Q Qc1 f3 Be1 Rc8 a8B Ne5 Nc6 f2 d8B f1B Ncd4 Bf6 e7 Ng4 e8N Ne7 Be6 Nf2 Nd6 Rg8 h8N Qg2 Ng6 Nd5 Ne5 Nc7 Ra3 Bc6 Rb3 Bd7 Re3 Qg7 Bb7 Qe7 Ng4+ Kg5 h6 Kh5 Bc4 Bf5 h7 Qf3 Be6 Bh3 Qa3 Qg2 h8Q+ Bh7 Kc1 c2 Rbc3 b3 Qc5+ Bg5 Qhe5 Bf5 Qh2 b2+ Kd2 Bf6 Nc1 Nd5 Rb3 Nc7 Nc3 b1B Rb5 Ba2 Rg3 Bd5 N3a2 Bb3 Rc3 Nh1+ Nce2 c1Q+ Kd3 Qa1 Nec1 Nf2+ Kd2 Bd5 Kc2 Bb3+
BrB1R1QN/KnB2N2/4bPnn/3qNqr1/1brQ3N/1R5P/1Bk5/4Br2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 f4+ Ke4 c4 e5 h6 d5 f6 g5 f5 g4 f7 d4 b6 a5+ Kb5 g3 b4 g2 b7 a4 h3 a3 f6 a2 c6 d3 c7 d2 Kb6 Rh7 b5 Ra5 c5 Ke3 c6 e4 Bb2 Qd6 Na3 Na6 b8Q Bb7 c8B Be7 f8B Ra4 Ka7 Qd5 c7 Rc4 b6 Nc5 Nf3 g1R Rb1 a1R Nh4 Qf5 Bg2 Bd5 b7 Rh8 h7 Kd3 Qg4 e3 Qd4+ Ke2 Qa8 d1Q b8B Be6 Be4 Rg5 Re1+ Kf2 Beb7 Nh6 Be4 Rhg8 h8N Nb7 Bc6 Bb4 Bc5 Bc3 Bb4 Re8 Ba5 Bb4 Bg2 Qdf3 Bh1 Q3d5 Bf3 Rc2 Nc4 Rd8 Ne5 Rc4 Bc1 Rf8 Rb3 Rb1 Bb2 Rbc1 Rg1 Rf1 Rg4 Ke1 Re4 e2 Ree3 Qd3 Bh1 Kd1 Be4 Be7 Be1 Bb4 Bd7 Kc2 c8N Bf5 Bc7 Qg8 Bd2 e1N Nc6 Na5 Nd6 Nf3 Be1 Ne5 Bf3 Qe6 Ndf7 Ng6 Bg2 Qd6 Re7 Re8 Nce5 Be6 Qd8 Rg8 Ba8 Nb7 Qf8 Qf3 Qg7 Rd8 Re8 Rb8 Bc8 Qdd5 Qg8 Qf5
kNbr1qrn/2B2R1r/2P1QqN1/1B1N4/1P1RrR1N/b7/1q4Q1/nN3RK1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 g5 f4 d5 Kf2 Kd7 b4 Kc7 h4 Kb7 c6+ Kb6 c7 Kb7 b6 a5 f6 e5 f5 g4 h6 e4 f7 d4 h5 d3 c5 a4 f6 d2 h7 a3 h6 a2 Qf3 d1Q Rh4 Ra7 c6+ Ka8 Bf4 Qb3 Nh3 g3+ Kg1 e3 Qg2 Bg7 f8R e2 f7 e1R Rg4 Re7 Bb5 Qb2 Be5 Re8 Nf4 Na6 Nd5 Ne7 Rd4 Nc5 Bf4 Rg8 h8N Nb3 h7 Ng6 Bd6 Re4 Be5 Nf4 Ng6 Bf6 Nh4 Ng6 h8N Bg5 Re8 Bc1 f8R Qe7 Rf4 Qf8 Re7 Rb7 Nf7 Nh8 Bd6 Rb8 Ne5 Rg7 Neg6 Rh7 Qh2 g2 Ref7 Be6 Qg3 Rd8 Qg5 Bc8 b7+ Ka7 b8N Ka8 Kh2 g1R+ Qg2 Qc3 Be5 Ba3 Bd6 Qb2 Be5 Ba6 c8Q Bb7 Qe6 Bc8 Qd2 Rg5 Qg2 Rg3 Bc7 Rg5 Nbc3 Rg3 Raf1 a1Q Kg1 Rg5 Nge7 Rg6 Nb1 Rg8 Rd3 Qf6 Rd4 Qb2 Neg6 Na1
b4Q2/3rBrn1/kP6/1NBNqb2/1bB1P1Bq/2N2Q1r/1NrN2R1/1R4nK w - - 0 1 illegal: No possible last move
kqb4n/1NPK1nN1/q4b2/1r1QN3/1r1N1QP1/1RB4n/BB1n3B/1R1bN3 w - - 0 1 illegal: No possible last move
2q1Q1rR/KP6/3Q1Bb1/1Q1BqQ2/1Br1nN2/4NPbn/q2QB2n/1R1n3k w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 a5 g4 e5 d4 h5 b4 e4 b6 e3 Kb5 h4 f6 Kg6 b7 a4 f3 c4 f7 h3 d6 c3 d7 a3 d5 c2 d6 a2 Nc3 h2 Nh3 e2 Rb1 e1Q Be2 a1Q Ba3 c1N Nf4+ Kh7 g6+ Kh6 g7 Kg5 Qd2 Kh4 g5 Kg3 g6 Nh6 g8Q Qa2 g7 Ng4 Ncd5 Na6 b8Q Nd3 Ne3 Nac5 Qb7 Be7 f8Q Ndf2 Qf5 Nh3 Qe8 Rh4 g8B Ne4 Bd5 Bf6 Kc6 Be5 b5 Rb8 b6 Kf2 Nfg2 Bg3 Nf4 Ra8 Qa6 Bb7+ Kb5 Qc8 d8Q Rb8 d7 Ra8 Rg1 h1N Bb4 Nh2 Qdf6 Rg4 d8B Rg8 Qa4 Ra7 Qb3 Ra4 Qd6 Ba8 Bf6 Bb7 Ba3 Rc4 Ka5 Bc6 b7 Ba4 Qbb5 Bc2 Kb6 Bd3 Rb2 Qea1 Rb3 Qe5 Bb4 Bc2 Rgb1 Bd3 R1b2 Kg1 Rc2 N1f2 Rb1+ Nd1 Rc3 Qb3 Ka7 Kh1 Rc2 Rd4 Rc7 Rc4 Rh7 Bc2 Rh8 Qa2+ Qa5 Ba4 Qaa6 Bd7 Qa5 Be6 Qaa6 Bf7 Qaa4 Bg6 Qaa6 Qab2 Qab5 Qa2+
1bb3BN/2k2K1Q/2b1Q1P1/3q4/1n1Nb1N1/B1b2Nn1/Br4Pb/rN1R1RB1 w - - 0 1 illegal: No proof kernel
2Nk4/1RR1nqN1/R2B4/1nb1Kb1Q/1nRN1P2/r1r1Q3/1b1PB1b1/NN3n2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 c5 Kf3 h5 Ke4 a5 g4 e5 f4 a4 b4 h4 f6 a3 b6 c4 g6 a2 g7 h3 b5 h2 f7+ Ke7 d6+ Kd7 g5 c3 b7 c2 b6 Qc7 g6 Kd8 d7 Bc5 f8R+ Ke7 d8N Nh6 g8Q Ng4 g7 Kd7 Qb3 Na6 b8N+ Ke7 b7 Rh3 Qe3 Nb4 Nf3 Nc6 Nd7 Ra3 b8R Rc3 Kf5 e4 Ba3 c1B Be2 Bb2 Rb7 Rg3 Re1 h1B Nd4 Bg2 N8e6 Nh2 Rf7+ Ke8 g8N Nf1 Kf6 Ne7 Ng7+ Kd8 Bb4 Qb8 Ba3 Qa7 Ke5 Rf3 Qb3 Rg3 Rc1 Rh3 Qf3 e3 Qh5 Rf3 Qe6 Rh3 Bb4 Ra3 Rc4 Rc3 Bf3 e2 Bg4 e1N Be2 Rhf3 Qeh3 Rfd3 Qe3 Nc2 Rc7 Na3 Rb7 Bb6 Bd6 Nb5 Nc5 Bf5 Ncb3 Bc5 Rc7 Nd5 Ne7 Qb7 Nc8 Ne7 Nc1 Ra3 Nb3 Rc3 Rc6 Nd5 Rfc7 Ne7 Rb6 Qd5+ Kf6 Qg8 Rbb7 Qf7+ Ke5 Ra6 Na3 Ra5 Rc1 a1N Ra4 Rd3 Rcc4 Nc2 Na1 Rc3 Nb1 Nb4 Ra2 Ra6 Ra4 Rc6 Raa7 Ra6 Ra8 Ra4 Ra6 Raa3
1bbR1Qb1/N1Q1P3/n1KB1Rqr/r2b4/R1Q5/5RQ1/r1PNB2R/2k3nr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 g5 h4 a5 b4 a4 e6 a3 e4+ Kf6 h6 d6 e5+ Kf5 h5 g4 b6 g3 b5 g2 e7 a2 e8R f6 c6 Na6 b7 Qe7 b8Q Bg7 b6 Qf7+ e6 Qg6 h7 Nh6 e7 Nf7 b7 Ne5 h6 Nf3 Ba3 Kf4 c7 Ke3 Ne2 g1R Nd2 f5 Rf8 f4 Nd4 Be5 Rh3 Rh1 Kc6 d5+ Rf6 Ra7 Nb5 d4 Rg3 d3 Be2 Bd6 Qe1 Ra8 Rg4 Ng1 Na7 f3 Ra4 f2 Rb1 f1B Rb3 Be5 Bd6 a1R Rba3 Ra2 Qg3+ Nf3 Rc3 Bfh3 Rca3 Bhe6 Rb3 Bg8 Rc3 Bce6 Qf8 Bc8 b8Q Bf4 Qh4 Bg3 Qc4 Ng1 Qbb3 Rb8 Qa3 Rb5 Qab3 Ra5 Qb8 Bce6 c8Q Bef7 Q8g4 Be6 Rca3 Bc8 Qc7 Bf4 Nb3 d2 Qh4 d1B Nd2+ Qd3 Qg4 Kf2 Qh3 Qg6 Rf3+ Ke1 Qb6 Be5 Qfd8 Qf5 Re3 Bf4 Bh5+ Be2 Qg3+ Kd1 Qb7 Bg4 Qb8 Bf7 Bb4 Bc7 Bd6 Rg8 h8R Bce6 h7 Kc1 Qa8 Bh3 Be2 Qg6 Ref3 Rg7 Qac8 Bb8 Qdc7 Bhf5 Rf8 Bg8 h8R Rgh7 Qe8 Bg4 Qf7 Bc8 Rd8 Bge6 Qf8 R7h4 Rh5 R4h3 Rb5 Rh7 Rh5 Rh6 Rh2 Bd5+
3Rn1Rr/PRR1BQ2/3Q2rB/1b4B1/1N2P2b/Nnn1n3/4R2K/k1r1r1qB w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg2 g5 a4 f5 h4 c5 e4 b5 d4 b4 d6 Kc6 a6 b3 a7 b2 e6 g4 e7 c4 e8Q+ Bd7 d5+ Kc5 a5 Kb4 a6 c3 h6 f4 h7 c2 h5 Kb3 h6 f3+ Kh2 f2 Qf7 Ne7 Nf3 Qa5 Ra2 Qb6 Na3 b1R Bg2 f1R Nd4+ Kc3 Bg5 c1N Re2 Qa5 Ndc2 Kb2 Nb4+ Ka1 Qd2 Bb5 d7 Re1 d8B Qb6 d6 Qe3 d7 Nd5 Bde7 Nb3 d8R Rbc1 Rf1 Rg8 h8R Rg6 h7 Nd7 Bh1 N7f6 Rg8 Ne8 h8B+ Bg7 Rff2 Bf6 Bg7 Rb8 a8R g3+ Kg2 Qc5 a7 Ne3+ Kh3 g2 Qd6 g1N+ Kh2 Qd4 B7h6 Qb6 Rc2 Ne2 Rc7 Nc3 Re2 Rc8 Rb8 Qc5 Bf4 Bh4 Rbb7 Qd4 Bfg5 Qd1 Rc2 Qg4 Re2 Qg1+ Kh3 Bc6 Rdd7 Nf6 Rg7 Re8 Rd8 Rh8 Rgg8 Be8 Qa6 Bb5 Qd6 Qf1+ Kh2 Ne8 Bf3 Qf2+ Bg2 Qf1 Bh1 Qg1+
RBQbN1b1/1n2rrqn/K1N1PN1B/8/8/kBpbP1r1/2Q1B2N/3R2nB w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 d4 f5 Kd2 h5 Kd3 c5 Kc4 a5 g4 a4 b6 h4 Kb5 f4 b7 a3 g6 c4 d6+ Kd7 d5 c3 g7 a2 e6+ Ke8 d7+ Ke7 g5 Kd6 g6 h3 Nd2 f3 Ne4+ Ke5 Nf6 Kd6 Qc2 h2 Bh6 f2 Nf3 Qc7 d8Q+ Nd7 b8N Rh7 Nc6 Be7 Rg1 h1B Nh2 Be4 Rh1 Bb7 Qc8 Bd8 Bg2 Rb8 Rhd1 f1N Bh1 Ba8+ Ka6 Ng3 b5 Kc5 b6 Rb7 Qb1 Qe5 Qc2 Rc7 b7 Bd3+ Ka5 Kc4 b8B Nc5 Kb6 Nb7 Ka6 Ne7 g8B Rf7 g7 Ng6 Bh7 Rce7 g8B Nf8 Bg6 Qg5 Bh5 Nh7 d6 Qg6 d7 Qg7 e3 Ne2 Bg4 Ng1 Be2 Bb6 d8N Ba5 Rab1 a1R Rbc1 Ra2 Ra1 Rb2 Ra2 Rb5 Ra3 Rg5 Raa1 Rg3 Ra3 Rf8 Nf7 Bd8 Nd6+ Kc5+ Ka7 Rff7 Nde8 Rf8 Bf7 Kb5 Bfh5 Rff7 B5f3 Kc5 Bd5 Kb5 Rb3+ Ka4 Rb6+ Ka3 Bb3 Ng5 Rb5 Bh7 Ka6 Bg8 Rd7 Nh7 Rbd5 Na5 Ra7 Nb7 Rd1 Na5 Nd4 Be4 Ra8 Nb7 Nc6 Bd3+
3R2nB/1nBN1B1b/4P1BN/1Kq1rQRp/R1R2bb1/Q5rr/1nRP4/5k2 w - - 0 1 illegal: No possible last move
1qR5/1k1r1r2/3pBNRR/b3b1Q1/b2R4/KrRnn1PQ/2PB1Q2/Q2N3n w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 a5 Kc3 h5 Kb3 e5 f4 d6 b6 Kd7 c6+ Ke7 g6 a4+ Ka3 h4 b4 e4 g3 h3 f6+ Ke8 f7+ Ke7 b5 h2 b7 e3 b6 e2 g7 e1B c7 Kd7 f5 Kc6 f6 Bc3 Bc4 Ra6 Bd2 Nh6 g8Q Qe7 Nh3 Qe3 Be6 Be5+ Nc3 Qg5 Nf2 Nd7 b8R Ra7 b7 Ng4 Nfe4 Be7 f8R Ne3 f7 Rh7 Nf6 Nc5 Qg7 Qg4 Qg5 Nd3 Rg8 Bd7 f8Q Rf7 Rc8 Bd8 b8Q Qf4 Rg6 Qb4+ Ka2 Qb7 Ka3 Qa8 Qb4 Qb8 Qbg4 Kb7 Qh3 Be8 Qc1 Bc6 Rd1 h1N Rb1+ Bb5 Rb4 Rd7 Qa1 Rf7 Rd4 Be8 Ka2 a3 Rb1+ Bb5 Nd1 Rd7 Kb3 a2 Rc1 Ba4+ Ka3 Ra6 Rb1+ Rb6 Rbb4 Rf7 Rh4 Rd7 Rbd4 Rb4 Rhh6 Rb5 Qb1 a1R+ Qa2 Rab1 Qa1 R1b2 Ne4 Ra5 Qf2 Ra7 Nf6 Be7 Rf8 Bd8 c8R Ba5 Rc3 Rb3+ Ka2 Ka6 Rfc8 Rac7 Ng8 Kb7 Nf6 Rb1 Ka3 Rf7 Ne8 Rcd7 Nf6 Rb3+
rn1bB1RB/1N6/1P2r2K/3RR2b/7R/qP4pQ/B1R2Q1r/1n1bnBNk w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 g5 d4 c5 h4 a5 e4 f5 b6 c4 e6 Kd6 e7 c3 e8B g4 Kf4 a4 e5+ Ke7 Kg5 c2 h6 a3 h5 g3 h7 f4 e6 Kd6+ e7 a2 h6 f3 Bf7 f2 Na3 Qc7 e8B Qc5 Qd2 Bg7 Rh5 Be5 Nb5+ Ke7 Nd6 Nf6 Nb7 Bg4 Qe3 Qa3 d6+ Kf8 d5 Bd1 d7 Ke7 d8R Ne4+ Kg6 Nd2 Rg5 Nb1 d6+ Kf8 d7 Ke7 Bd2 c1N Bc3 Nd3 Rc8 Ne1 d8R Ra4 Qf3 Bc7 Rdd5 Bd8 Qg2 Re4 Rge5+ Kf8 Be6 Ke7 Bd4 Re3 Rc2 Re2 Kh5 Kf6 Qh3 Rg8 h8R Rg6 h7 Rd2+ Be2 f1B Rg8 Bg2 Qh2 Be4 Qf2+ Bf3+ Bg4 Nc3 Rac1 a1R Bf1 Nb1 Rc4 Ra2 R1c2 Ra1 Rf5+ Ke6 h8Q Rf6 Kg5 Re2 Bgh3 Bh5 Be5 Ra2 Rh4 Rf8+ Kh6 Re3 Rd7 Re2 Re7+ Kd5 Qh7 Re3 Bh8+ Re5 Bg4 Ke4 Rd7 Re7 Rdd5 Re5 Qh2 Ke3 b3 Re4 Rfe5 Rf2 Qh3 Rh2 Bge2 Kf2 Bd3+ Re2 Qc7 Qb4 Qc3 Ra8 Qb2 Qa3 Rcc4 Nd2 Bb1 Re4 Ba2 Re3 Ne2 Nb1 Rc2 Re4 Nc1+ Kg1 Ne2+ Kh1 Ng1 Re3 Qd4 Re4 Qf2 Re2 Reg5 Re7 Rge5 Re6+
qBbR2Q1/rQ2P1b1/1n1NbBrn/1Q5p/2RP4/2K1N2Q/4Bn2/Q2rk2B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 Kd2 c5 g4 h5 d6+ Ke6 d7 f4 b6 c4 b5 a4 b7 a3 g6 a2 b6 f3 g7 f2 g5 Ne7 g6 Ra6 Nh3 Ra4 Na3 Qe8 d8Q Rg8 Nc2 Ra5 Ne3 Qc6 Kc3 Ra6 Be2 f1B Nf2 Bd7 Qc8 Nf5 Rg1 Rh8 g8B+ Ke7 g7 Nh6 e6 Kf6 e7 Ra8 e8Q Ra7 Bd5 Bfh3 g8Q Bde6 Rg3 Nd7 b8Q Rh7 b7 Nb6 Qg1 Qa4 Qb5 Bg7 Qe1 Bhg4 e5+ Kg5 Ne4+ Kh4 Nd6 Qa6 Rb1 a1R Rb4 Rb1 Ba3 Rd1 Bh1 Qa4 Rg2+ Kh3 Rf2 Kg3 Qbc7 Qa6 b8B Qb7 Qf1 Qa8 Rf8 Bgf5 Qh3+ Kf2 Rd8 Ke1 Qca6 Bc8 Qcb7 Bfe6 Bc1 Rh8 Qa1 Rh7 Kc2 c3 Rc4 Ra6 Kb3 c2 Kc3 Ra7 Ba3 c1N Bb4 Nd3 Ba5 Bd5 e6 Nf2 e7 Nd7 Bac7 Be6 Nf7 Nb6 Be5 Rh8 Bf6 Rh7 Nd6 Rh8 Qge8 Rg8 Qf7 Bf8 Qh7 Rg6 Qg8 Bg7
2n4R/3QN3/1rbqRN2/q2R2N1/3PP1Kq/3nbr1B/1B2kNpR/2QN2r1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 d4 g5 h4 f5 e4 a5 b4 g4 h6 a4 e6+ Kd6 h7 c4 e7 c3 e8N+ Ke7 b6 c2 b5 a3 h5 a2 b7 Ra6 h6 Nc6 b8Q Rb6 Bh3 Nb4 Nf6 Bb7 Nc3 Nd3 Rh2 Bc6 Bb2 c1Q Qc8 Qg5 Qc1 Kd6 Qb7 Ne7 Nd1 Rg8 h8R Nc8 h7 Bh6 Rb1 a1Q Qg7 Rb8 b6 Qa5 b7 Qh5 Qf7 Be3 Qe6+ Kc7 d6+ Kb6 d7 Kb5 Ra1 Qe7 d8R Qg5 Qd7 f4+ Kg2 f3+ Kg3 f2 Rb1 Ra8 b8N f1R Re8 Qec5 Re6 Ra6 Ra1 Rb6 Ra4 Qac3 Ra5+ Kc4 Rb5 Qe7 Rd5 Qe5+ Kh4 Q5d6 Kh5 g3 Kh4 Bb5 Nc6 Rf3 Kh5 Qd8 Ne7 Bc6 Kh4 g2 Kh5 Rf8 Kg4 Rf7 Ne2 Rf1 Ng3 Rg1 Nh1 Rf8 Nhf2 Rf7 Nfg8 Rf5 Nf6 Rf3 Qd2 Qa5 Qc1+ Kb4 Rf8 Kb3 h8N Kb4 Nf7 Kb3 Qa1 Kc2 Rh8 Kd2 Ng5 Ke2 Qa3 Qf8 Qa1 Qh6 Qc1 Qh4+
1QKqqB1N/1RN1bq2/r1QRN3/4b2p/5P2/1Bn5/1k1rr1nP/N1N2B1B w - - 0 1 illegal: No possible last move
2NBRr1Q/2R1q3/bq6/B2pB1bn/1N4Bq/2P3PN/K2Q1rb1/B1n3Nk w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 a5 Kb3 h5 f4 e5 c3 d5 g6+ Kf6 g7 h4 c6 h3 c7 e4 b6 e3 g3 a4+ Ka2 h2 b4 a3 b7 e2 b5 e1Q b6 Na6 b8B Rh4 b7 Qf2+ Nd2 Qb6 Bh3 Qa7 Bg4 Bc5 Nh3 Rh5 Re1 h1B Re8 Bd4 Bb2 Rh7 Nf3 Nc5 Nfg1 Rh8 Qd2 Nd3 Rae1 Qa5 Ba1 Bg2 R1e7 Be3 Rd7 Qb6 Rde7 Bd7 c8N Bb5 Bd6 Rh5 b8N Ba6 Rc7 Qe7 Nc6 Rg5 Nb4 Nc1+ Kb1 a2+ Kb2 Kf7 f6 Kg6 f7 Rf5 f8B Nf6 Be5 Nh5 Ka3 Rf7 f5+ Kh6 f6 Bg5 Bf3 Kg6 g8Q+ Kf5 Bg4+ Ke4 Bg7 Rf8 f7 Ra7 Bgf6 Rb7 Rc5 Rd7 Rc7 Rd6 Bg7 Rf6 Qh8 Rf2 Bgf6 Nd3 Bb2 a1Q+ Kb3 Qe1 Ka2 Qee3 Ba1 Qf4 Be6 Qh4 Bg4 Rg8 f8B Nc1+ Ka3 Qf7 Bc5 Rf8 Bd8 Qe7 Kb2 Qa5 Bb6 Qac5 Be6 Qd4 Ba5 Qb6 Ne2 Kf3 Kb1 Bf1 Neg1+ Kg2 Bg4 Kh1 Kb2 Bg2 Ka3 Nd3 Ka2 Nc1+
b2bkrQ1/N2qq3/B2R1PnB/1rB1Q1P1/r5QR/2N1pQ2/2K1q1Q1/5n1B w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 e5 b4 h5 f4 c5 d4 a5 Kd2 a4 b6 c4 d6 a3 f6 e4 g6 h4 f7+ Kd7 b5 h3 d5 h2 g7 a2 b7 c3+ Kc2 Ra4 f5 Nf6 g8B Rh6 b6 Ra6 Na3 Ra4 Ne2 Nh7 f6 Ra8 Nb5 Rh5 Na7 Be7 f8B Qe8 Bch6 Rf5 g5 Nc6 b8Q e3 b7 Bd8 Rb1 a1R Rb6 Qe5 Qd4 Ra4 Qg4 Ke8 Qg2 Be6 Qc8 Ne7 b8Q Bf7 Qc4 Qe6 Qcg4 Qd7 Ra6 Bg6 Q4f3 Bh5 Qb4 Re5 Qbg4 Nf5 Be6 Qe7 Bc8 Ng3 Bb7 Bf7 Rb6 Be6 Ba6 Bc8 Rc6 Bb7 d7+ Kf7 d6 Rb5 Rb6 Rc8 Rc6 Ba8 Rb6 Qe5 Be7 Nf8 Bb7 Ng6 Ra6 Bb6 d8Q Qd5 Qdd7 Rf8 Qdf5 Bd8 d7 Qe6 Bc5 Qe7 Kd3 c2 Rd6 c1Q Nc3 Qb2 Qe5 Qf2 Ba6 Qe1 Kc2 Qf2+ Be2 Qe1 Bd3 Nf1 Be4 Qe2+ Rd2 Bc7 d8Q Qd7 Qc8 Bd8 Beb7 Qe7 Qce6+ Ke8 Qg8 Qc4 Rd4 Qce6 Rd6 Q6d7 Rg1 h1Q Bc6 Qh4 Rh1 Qe1 Rh4 Qe2+ Kc1 Rf4 Qh2 Re4 Qff2 Qe1+ Kc2 Rd4 Bh1 Rf4 Qhg2 Ra4 Qff3 Qe2+
1Bkq3Q/1N6/Q1rbKpnr/2q3R1/PB3Nb1/B1BbPNr1/BR1n4/5N2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 g5 Kg4 c5 Kf5 b5 a4 g4 h4 c4 d4 g3 e3 g2 a6 b4 e6+ Kc7 d6+ Kc6 d5+ Kb6 d7 Kc7 e7 c3 e8N+ Kb6 d6 c2 h6 b3 a7 Kb7 h7 b2 h5 Qb6 h6 Be7 Bc4 Qb4 Qf1 Qe1 Nf3 g1Q Rh5 Qef2 Ba2 Qfg3 Rg5 Qh1 Nbd2 b1B Nf6 Na6 Nd5 Qgh4 Nf4 Bf8 Ba3 c1R+ Qd3 Rb8 Nf1 Ne7+ Ke5 Rc2 d8B Bg4 a8Q+ Kc8 Ba5 Nc5 B5b4 Ne4 Qd4 Rc6 Qa6+ Rb7 Qc3 Bc2 Rb1 Nd2 Rb2 Bd3 Kf6 Rg8 h8B Bh5 h7 Ng6 Bg7 Q1h3 h8B Qd7 Bh6 Qc7 Qd4 Ne7 Ke5 Ng6+ Kd5 Qb6 B6g7 Qd8 Be5 Qe1 Bhg7 Qc1 Bgf6 Rh8 Bg7 Rh6 Bh8 Kb8 d7+ Bd6 Qc3 Qe7 d8N Kc8 Qa8+ Rb8 Nb7 Qd8 Qc4 Qc3 Qca6 Qc2 Bec3 Qc1 Bhe5 f6 Ke6 Qc2 Bcd4 Qc1 Ba7 Qc5 Bec3 Kc7 Na5 Rb7 Bb8+ Kc8 Qc4 Rg7 Nb7 Rg8 Qca6 Ne7 Rf5 Rg3 Rg5 Ng6 Qb5 Rb6 Qe8 Ra6 Qh8 Rc6 Qa6 Bg4+
qrB1N1QB/b2RBb1r/nkpRQ1P1/4q3/n1K2N2/1nR5/2RP1bB1/3B4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 e4 Kd7 Ke2 h5 Kd3 f5 b4 a5 g4 c6 e6+ Kc7 g6 a4 g5 f4 d6+ Kb7 g7 f3 d7 f2 e7 h4 e8B a3 e5 a2 e6 h3 e7 h2 b6 Ra7 b5 Nh6 g8Q Ra3+ Kc4 Nf7 Nh3 Ra8 Nf4 Bg7 Qb3 Bf6 Ba3 Na6 Bg2 f1N Nc3 Rh3 Ne4 Rg3 Rc1 a1B Rc3 Bh8 Nf6 Qc7 d8R Qe5 Rd6 Rb8 Bd7 Nh6 e8B Nf5 Bh5 Nd4 g6 Rh3 Bd1 Ng3 Ne8 Rh7 Rf1 h1Q B7g4 Ka8 b7+ Ka7 Rc2 Bf6 Rf3 Ne4 Rfc3 Bh4 Rd7 Bg3 Be7 Kb6 Qe6 Nec5 B4h3 Ra8 b8B Bf2 Rd6 Na4 Bc7+ Kb7 b6 Rb8 Qa2 Nb3 Bf5 Ka8 b7+ Ka7 Bcd8 Bb2 Bf6 Qh4 Bde7 Kb6 Bh8 Ba3 Bfg4 Bac5 Qg8 Bf5 B4h3 Be4 Bc8 Qh6 Qe6 Qf8 Rd7 Ka5 Qg8 Ba7 Qe6 Kb6 Rd6 Ra8 b8R+ Ka5 Qg8 Bg1 Nc7 Qe8 Bb7 Nc1 Rbd8 Kb6 R8d7 Qc8 Ne8 Bf2 Bf1 Qb8 Bc8 Qb7 Bg2 Rb8 Rd8 Qa8 R8d7 Ne2 Kb3 Nd4+ Kc4 Bf3 Kd3 Bd5 Qc4 Bf7 Qe6 Nb3 Kc4 Be1 Bg5 Bg3 Be7 Bf2
RR2qQ2/4P1P1/1n2rn1B/bRpN1knB/1Bb1r2R/q7/1Q3B2/1rN3BK w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 h5 Kg2 f5 e4 c5 b4 a4 d6 Ke6 g6 a3 d5+ Kd7 e6+ Ke8 e7 Kd7 e8R h4 g7 f4 g5 a2 b6 Nh6 g8Q Nc6 b5 Nd4 b7 Ndf5 b8B Ra4 g6 Nd4 e5 Nc2 g7 Nf5 b6 Ng3 b7 Ne2 Nc3 Rh6 Rb1 a1Q Rb5 Ng3 Qe2 Be7 Qf8 Na3 Qb2 Nh5 Be2 Nf6 Bh5 Nc4 Nge2 f3+ Kh2 Rg6 Bh6 f2 Nc1 f1R Bc7 h3 b8R Rb4 Ba5 Ra4 Bb4 Qa3 Be3 Ba6 Bg1 Nb6 Ra8 Qc7 Reb8 Qd8 Qb3 Nc8 Qb2 Qe8 e6+ Kd8 Nd3 Rb1 d7 Kc7 d8B+ Kd6 Nc1 Ke5 d6 Kf5 d7 Nb6 Bc7 Bd8 Bg3 Bc7 d8B Rh6 Ba5 Re4 Nd5 Rg6 Bb4 Rh6 Ra5 Bc4 Rb5 Rg6 Be7 Bd8 Bed6 Bc7 e7 Bd8 B1f2 Rh6 Kg1 h2+ Kg2 Rg6 Bf4 Bc7 Bh6 Bd8 Rf1 h1N Bg1+ Nf2 Re1 Nh3 Kh1 Ng5 B3f2 Na4 Re3 Ba5 Rh3 Nb6 Rh2 Nh7 Rh4 Ng5 Qg8 Ng4 Qh8 Rge6 Qf8+ Nf6
1R1q4/QPb1k3/r1Q4B/4BpKn/Pr3B2/Q1qbb2n/4RqN1/1N1BQ2B w - - 0 1 illegal: No proof kernel
1N5b/4rN2/3R1rbB/nNnQQR1N/PR2PNbp/1Bb2b2/5Rq1/5K1k w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 a4 Ke7 d4 f5 g4 b5 e4 h5 d6+ Ke6 d7 c5 a6 b4 g6 f4 a7 f3 g7 b3 d5+ Kf7 g5 Kg6 d6 b2 e6 h4 e7 Kh5 e8Q+ Kg4 g6 Kg3 Ra2 c4 Bh6 c3 Nh3 c2 Qd5 c1B Nf4 Ne7 g8N Bg7 Nf6 Nec6 Qee5 Rf8 Na3 b1B Nb5 Na5 Rf2 Bh8 g7 Bb2 g8N Ba2 Bc4 Na6 Ne7 Bc3+ Kf1 Nc5 Nc6 Qe7 d8N Bg4 d7 Qg7 Nf7 Rae8 d8R Re7 a8R Qg5 Rb2 f2 Nb8 Qg7 Rg1+ Kh2 Rg2+ Kh1 N6h5 Bf3 Rb4 Qg8 Ng5 Rf6 Nf7 Bb3 Ra7 Bbd1 Rc7 Bg4 Rc6 Bdf3 Bb3 Bf5 Rcd6 Bg6 Rf8 Qg7 Rg3 Bg4 Rf3 Qg8 Ke2 f1B+ Kf2 Bg2 Ke2 B4f5 Rf2 Bf3+ Kf1 B5g4 Ng5 Rfe6 Rf5 Rf6 Qb7 Qd5 Nf7 Qd2 Qbd5 Qe3 Rc2 Qd2 Ra2 Qh2 Rf2 Qg2+
B7/5rbb/1RP2b2/bbQBr1N1/p3P1R1/BN3nqK/4N3/BnNkN1Q1 w - - 0 1 illegal: No proof kernel
BB1N1n2/3PQRQB/3N2r1/1b1rBqBn/p4Q2/K6R/1Qnnn2P/b2k4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 f5 Kc2 a5 Kb3 c5 e4 g5 b6 f4 b7 g4 h6 a4+ Ka3 f3 b4 f2 h7 c4 d6+ Ke6 d5+ Kd7 b5 c3 b6 g3 e6+ Ke8 e5 c2 e7 Kd7 Qd4 g2 Qb2 Bg7 Ne2 g1N Nd4 Qf8 e8B+ Kd8 e6 Nh6 Bg6 Qf4 d7 Ke7 d8B+ Kd6 e7 Ke5 e8Q+ Be6 d6 Nf3 Bc7 Ng8 Nc3 Nd7 b8Q Nf8 b7 Qf5 Bg2 f1N Ne4 N3d2 Nc6+ Kf4 d7+ Ke3 Be5 Ke2 Qe7 Bc4 Nd8 Ra6 Nd6 Ne3 Rf1 Nf6 Qc7 Nh5 b8B Bd3 Ba8 Bb5 Rf4 Rg8 h8Q Kd1 Bh7 Ra5 Rh4 Bf6 Rh3 Rg6 Qg8 Bf1 Rb1 Rd5 Qgg7 Bb5 Ra1 Nb3 Bd2+ c1N Ra2 Ne2 Qc4 Ng2 Bg5 Ne1 Qf4 Nd2 Qbd4 Nd3 Rc2 Ne1 Qb2 Ba6 Rcc3 Bb5 Rcf3 Nc2+ Ka2 Ncd4 Qe3 Bc4+ Ka3 Nc1 Bef4 Qe6 Qb7 Nce2 Bg3 Be5 Rf7 Qf5 Qb4 Bb5 B3f4 Nc6 Qbc3 Bd4 Be5 Nb4 Qf4 Nc2+ Ka2 Re6 Qb4 Ba1 Qb2 Ne3 Ka3 Rh6 Rh4 Rg6 Rh3 Nc2+
1N3kbN/pqr1Nr1R/1bB5/B1QPQ2K/2nb1Rb1/P4N1R/8/RR1n2b1 w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 Ke2 g5 Kf3 e5 Kg4 b5 h4 e4 d4 b4 f4 b3 a3 b2 c6 e3 d6 e2 c7 e1B d7+ Ke7 f6+ Kf7 f5 Bd2 h6 Ba5 h5 Bb6 h7 Ba6 c8Q Ba5 h6 Bb7 Bg2 Nc6 Nf3 Ne5+ Kh5 g4 Qc5 g3 Rh3 Ba6 Qe2 Qb8 d8N+ Ke8 Nc6 Be7 f7+ Kf8 Bd2 Bc8 Nc3 b1B Nd5 Nc4 Qe5 Bb6 Ba5 Qb7 Nb8 Ba2 Bh1 Bd6 Ne7 g2 Nh2 g1B Bc6 Be6 Nf3 Bb3 d5 Nf6+ Kg6 Ne4 Kh5 Rg8 h8N Nf2 h7 Nd1 Rb1 Rg6 Ra1 Rf6 Rb1 Kg7 f8R Bg8 Rc8 Bc2 Rc7 Kf8 Ra1 Qa6 Rb7 Rf7 f6 Bdc7 Bb5 Bf5 Bc6 Rg7 f7 Bd7 Qcd6 Bbd4 Rbb1 Qb7 Qb4 Bcb6 Qc5 Rg6 Rc1 Rf6 Rcb1 Kg7 f8R Bf5 Nd7 Rc8 Nb8 Rc7 Nhg6 Bc8 h8R Bd7 Rh6 Bf5 Nh8 Bg4+ Kg5 Bc8 Kh5 Bd7 Rd8 Bf5 Rd6 Kf8 Rh7 Rf7 Rf6 Be6 Rf4 Bg4+
2nR2r1/b5B1/1q1Q1r1r/2r1P1k1/2BQK1Nb/R1p2Q2/2P1R1Qn/n4RNR w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Be7 g4 Bb7 h5 Be4 Ra5 Bd3 Ra1 Bg6 hxg6 Bf8 Kd2 Ke7 Kd3 d5 b4 f5 e4 c5 b6 h5 b7 a5 e6 a4 b5 a3 b6 h4 g7 c4+ Ke3 f4+ Kf3 d4 g6 Kf6 e7 d3 e8R h3 Bb2+ Kg5 Nc3 h2 Nd5 d2 Nf6 Ne7 g8R a2 g7 Na6 b8Q Nc5 b7 Nb3 Qd6 Nc8 b8Q Rh5 Qd4 Be7 Rgf8 Qb6 Qbd6 Rb8 Qe2 d1R Qed3 Rh6 g8Q+ Rg6 Be2 Rd2 Rf1 a1B Rf7 Bd8 Ra7 Rd1 Ra3 Re1 Kf2 f3 Ke3 f2 Bc3 Rb1 Qd1 Bb2 Bd3 Na1 Qf3 Ra8 Qg7 Ra5 Qb7 Rc5 Be2 Kh4 g5 Rg8 g6 Kg5 g7 Re1 Ng4 Bc1+ Bd2 c3 e5 Rd1 Bc4 Be7 Rf8 Bf6 Re1 Be7 Rf4 f1N+ Ke4 Bf6 Re2 Bd8 Be1 Be3 Bd2 Bf2 Qa8 Bh4 Qb7 Bc7 Qa8 Bb8 Qac6 Ba7 Rf8+ Kh5 Bh6 Rd3 Qg2 Rf3 Qcd5 Rf6 Rd8 Rgf8 g8R Re8 Rg7 Rg8 Rf7 Kg6 Bf8 Kg5 Bg7 Re6 Kd3 Bg3 Rff2 Rf6 Qdf3 Qa5 Ke4 Qb6 Nh3+ Kh4 Rg1 h1R Bf7 Rh2 Bc4 Kh5 Rh1 Kg6 Ng5 Rh6 Nh3 Nh2 Rff1 Bh4 Ng1 Kg5
2qK1Qb1/B2b1R1N/N4r1R/2p3r1/rB1N1Qnb/2bB2B1/2PnP3/1B1N2k1 w - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 e5 dxe5 f6 exf6 Ba6 a4 Bb7 axb5 Bc8 Kd2 Kf7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 f4 Kg3 b4 Kf2 g4 h5 b6 a5 b5 a4 g6 a3 b7 a2 f7 d6 b6 h4 f5 h3 g7 h2 g5 Ra6 f6 Be7 f8N Qe8 f7 Ra8 g6 Qa4 Qd4+ Kg3 Be3 Bf6 Bh3 Be7 Nf3 Qd7 Nc3 Nc6 b8N Na5 b7 Nh6 g8B Ng4 g7 Nc4 Na6 Nd2 b8B Bh4 Raf1 a1B Nd1 Rh6 Nh7 Rf6 f8B Bc3 Bg2 Qf5+ Kc6 d5+ Be6 Ra7 g8Q Ra8 Qe4 d4 Bb4 d3 Nd4 Bd7+ Kb7 Qc5 Ba2 Qf8 Ba7 c5 Kc7 Qe8 Bb1 Qf8 Rhg1 h1B Bf2+ Kh2 Qf5 Qe8 Qf8 Qe6 Bb7 Bd5 Rh1+ Kg2 Bg3 Qe8 Rf3 Bg8 Rh2+ Kg1 Be4 Qe6 Qf4 Qe8 Bb8 Qe6 Kd8 Qc6 Nc7 Ra4 Na6 Qc8+ Ke7 Nf1 Ba7 d2 Bg6 Bg5 Rh6 Bh4 Ne3 d1R Bd3 Nd2 Rf2 Qb7 Kd8 Rf1 Nd1 Rf5+ Qe7 Rg5 Qef8 Qa8+ Qb8 Qc6 Rf7 Rf6 Qf4 Qc8+
QrQ2R1Q/Qb4QB/2r1RPr1/r1q1B2n/5N2/1k2b1bR/1N1K1PRp/7n w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 g4 Kd6 d4 a5 b6 h5 f6 c5 g6 e5 g7 a4 b7 h4 g5 c4 b5 c3 b6 e4 g6 e3 Bb2 c2 Qc1 e2 Nd2 a3 Nh3 a2 Nf4 Rh5 Rh3 Na6 b8R Qe7 b7 Nh6 g8R Nc5 g7 Ne6 Rb1 a1B Nc4+ Kd7 d6 Kc6 d5+ Kc5 d7 Kb4 d8Q Nf5 d6 Ng3 d7 Qc5 Qe8 Bd6 d8Q Kb3 Kd2 e1R Bd3 Rg1 Bh7 Rg2 Qh1 c1R Be5+ Bb2 Ra1 Bd4 Nb2 Rc3 Qc1 Nh1 Ra6 Rg6 Rf8 Rhg5 g8Q Rf5 Qh8 Ng7 Qde7 Nh5 Qeg7 Bc7 Re6 Rfg5 Rh2 h3 Rg2 h2 Qa1 Ra5 Qd8 Rb5 Qa7 Rc1 Ra8 Rb4 b8Q Bb7 Qdc8 Rb6 Nc4 Rb1 Nb2 Rc6 Qa6 Rf5 Qba7 Bb6 Bc7 Qe5 Ne2 Kb4 Qab8 Qb5 Qa2 Ba6 Nc4 Ba7 Qbb7 Bb8 Bg3 Rb3 Nb2 Qb6 Qbf7 Rb5 Qfb7 Qc5 Ra7 Bd6 Qba8 Ra3 Bf4 Rb8 Bg3 Bb7 Bf4 Rc3 Ra3 Rc1 Rc3 Ra1 Q2a7 Ra5 Rh3 Bc7 Bh6 Bg3 Bf4 Ka3 Be5 Kb3 Nf4 Be3+
R3RbQb/1r1N2NQ/PQp1B3/3n2rb/N4Q1B/7n/1P3bkq/1n1QK1N1 w - - 0 1 illegal: No proof kernel
r1b1N3/N3qr2/pbN1B1BB/3b2Q1/1P2nPK1/1r1B1R1R/1n4B1/r3kN1Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 h5 b4 e5 c4 d5 g4 a6 c6 d4 c5 d3 g6+ Kf6 g5+ Kg7 c7 h4 b6 h3 b7 h2 c6 e4+ Kg4 d2 Nc3 e3 Nd5 e2 Nf6 e1R Ra3 Qd3 Nf3 Bc5 Ne8+ Kf8 g7+ Kf7 g6+ Ke7 Bg2 Bd7 c8B Bb6 c7 Ba4 Be6 Nd7 b8N Nc5 Rb3 Qe2 c8N+ Kd8 f6 Bd7 f7 Na4 f8Q Rh3 Qf7 Rf1 Na7 Nb2 Qf4 Ke7 Bf5 Qe6 Qg5+ Qf6 Be6 Bc8 Qe1 d1R Nd2 Rc3 f3 Rf2 Nf1 Rcd3 Be3 Ra1 Ra3 Rb3 Bf5 Bb7 Bd3 Ke6 Nbc6 Bc8 Qb1 Ne7 Qe1 Nf5 g8B+ Qf7 g7 Kd5 Bh7 Qe7 Rg1 h1B g8B+ Qe6 Bg6 Qf7 Be4+ Kc4 Qb1 Kc3 Bd3 Qg7 Be6 Nd6 Bdf5 Nd3 Qh4 Qc7 Nh2 Nb7 Bh3 Bg2 Bh6 Qe7 Rh1 Nb2 Qg5 Nd6 Qe4 Qc7 Nf1 Qe7 Ne3 Kd2 Nf1+ Kd1 Rh2 Rc3 Rh1 Rc5 f4 Rf3 Qd5+ Ke1 Rh2 Bh1 Rf2 Re3 Qg2 Rb5 Qh2 Be4 Bg2 Re5 Qh1 Bd5 Bfe4 Rf5 Rc3 Rf7 Bb1 Re5 Rh3 Re3 Rff3 Rb3 Bbd3 Ne4
1N2R1N1/4B1p1/2Kb1n2/PRQ2b1N/B2b1Qr1/BqP2r2/BNk1B1nb/5n2 w - - 0 1 illegal: No proof kernel
1R1Rn2B/R3bP2/1K1PQ3/N3N3/2BnQ2r/2q1bb1b/2pR4/rkB1BRr1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 h4 g4 a4 b6 c6 f6 a3 g6 a2 g7 e6 b5 h3 f7 h2 g5 Nf6 g8R Ra7 f5 Rh5 g6 Ra5 b7 Nbd7 b8B+ Qc7 g7 Ra8 b6 Ra5 b7 Ra4+ Bc4 Ne5 Nf3 Rh7 Qe2 Rh4+ Qe4 Ne8 f6 Be7 Rf1 h1B f8B Rb4 Na3 Rb1 Ba7 Bg2 b8R c5+ Ke3 Qa5 d4 Nc6 Ne5 Bf3 Rb2 Qb4 Rd2 Qb2 Rh8 Qc2 g8Q Qc3+ Nd3 e5 Bg7 Bh3 Qe6+ Kc7 Bb8+ Kb6 f7 Ka5 d6 Ka4 d5 Nd4 d7 Rh6 d8R Rh4 Bb5+ Kb3 d6+ c4 Bc7 Qb4 Ba5 Qc3 Q4g4 e4 Rb8 Nc7 Rhd8 Ne8 Bh8 Rb2 Rdd1 Rg2 Rd2 Rg1 Bb4 Qb2 Ne5 Qc3+ Kf4 e3 Ba6 Bd1 Ke4 e2 Kd5 e1B Kc5 Bf3 Kb6 Bf2 Qe4 Be3 Rdd1 Qc2 Be1 Qc3 Rd2 Qb2 Q6f5 c3 Nac4 c2 Qe6 Qc3 Na5+ Ka4 Rb1 a1R Rb2 Ka3 Bc4 B3g5 Rb3+ Ka2 Ra3+ Kb1 Nb7 Rh6 Ra7 Be3 Na5 Rh4
R5bR/bQ2P1B1/1QQ1pN2/4QnPn/4b2N/1B2b1QK/N4rn1/3rN1qk w - - 0 1 illegal: No proof kernel
1R4B1/K2P2N1/1q1kN1B1/b1n2BPp/r2nr3/r1n1N1N1/4bRQ1/Nn4BQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kd4 a5 g4 h5 b4 f4 e4 a4 d6 a3 Kc5 c6 d4 a2 b6 f3 e6+ Ke8 b7 f2 g6 Qd7 Kb6 c5 g5 c4 e5 c3 e7 c2 b5 Qh3 g7 Kd7 e8N Ra4 e6+ Kd8 e7+ Kd7 d5 Ra7 Bd3 f1R Na3 Nf6 g8B Bg7 Rh2 Qf5 Be3 c1N Rf2 Qe5 Ne2 Bf8 Nc4 Ra3 Ng7 Qf5 e8B+ Kd8 d7 Ke7 d8N Ne4 Bg6 Ra7 Ng3 Re1 Nde6 Ne2 Rb1 Nc6 b8N a1N Nd7 Nd2 Ndc5 Ra3 Nb3 Qf6 Bdf5 Ba6 d6+ Kd7 Rb2 Ncd4 Ka7 Nc3 b6 Ndb1 b7 Kc6 d7 Bb4 b8Q Ba5 Qf4 Qd8 Qfg4 Bb5 Ncd2 Be2 Ndf1 Kd6 Qe4 Qf6 Qg2 Ra4 Nbd2 Ra3 Rb8 Nab3 Qc1 Nc5 Nb3 Ra4 Na1 Rh6 Rf4 Qd8 Bg1 Ra3 Ne3 Rh8 B8h7 Re8 Rf2 Qb6+ Ka8 Rd1 Bg8 Rd2 Qe1 Rda2 Qef1 Ra4 Qh1 R2a3 Qfg2 Qb5 Ka7 Qc6 Nd8 Re4 Nde6 Qb6+
1Nn5/3P1k1n/b1RBqp2/1Q2rBR1/1QQb4/1P3rn1/BNr1QB1B/n2K4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 a5 e4 c5 h4 g5 e6 a4 e7 g4 e5 f6 h6 g3 h5 g2 b6 c4 h7 c3 d6 a3 d5 c2 h6 a2 d7+ Kf7 e8B+ Ke7 e6 Qc7 d8B+ Kd6 b7 Qf7 e7 Ke5 d6 Ke6 Bd7+ Ke5 e8Q+ Qe7 Bc7 Qe6 Bc4 Na6 b8B Bg7 Na3 Nb4 Nf3+ Kf5+ Ne5 g1N Be3 c1N Nc6 Ra7 Rh5+ Ke4 Bf2 Bf8 Rg5 Nce2 Rc1 a1R Ba2 Ng3 b3 Ba6 Nc4 Nh3 Nb2 Ne7 Qe2+ Kf4 Kd1 Nc2 Q8h5 Nc8 Qb5 Be7 Qhe2 Re8 h8Q Rb1 h7 Na1 Qg8 Bf8 Ba5 Rc7 h8Q Bh6 Bb4 Bf8 Nd4 Rc2 Nc6 Be7 Bc7 Bd8 Bb8 Bb6 Bc7 Ba7 Nb8 Bd4 Qhh7 Re7 Qhd3 Re8 Qf8 Re7 Qdc4 Re8 Rg7 Ng5 Qe7 Nh7 Rg5 Qe3 Qf8 Re5 Bf5 Qe4 d7 Qc6 Na4 Qe6 Bbd6 Rbb2 Qe7 Rc3 Rc2 Rf3 Rc3 Rc2 Nb2 Qg8 Qcb4 Qd5 Rc6 Qe6 Qf7 Nf1 Rg2 Ng3 Rg1 Kg5 Rg2 Qe7 Qfc4 Qe6 Rg1 Kh6 Rg2 Kg7 Rg1 Kf7 Rg2 Nh5 Rg5 Rc5 Bh2 Re5 Bd6 Ng3
B1R1N2R/2PR4/2Q5/1n1QPKrn/p1B3RR/4bBrb/q1r5/Bnkn3N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 a5 c4 a4 b4 f6 h6 d6 b6 g4 b5 g3 c6 g2 c5 Ra6 c7 Ra7 h5 Rh7 c6 Ba6 c8B+ Rhd7 c7 Nc6 b7 Qe7 b8Q Bb7 b6 Qe8 h7 Ba8 h8R Bh6 b7 Bg5 h6 Be3 h7 Nd4 Bb2 Qf7 Nc3 Ra6 Nb5 Rc6 Rh4 Rc2 Nh3 g1R Nf2 Rg5 Nh1 Rg3 Rg4 d5+ Kd3 Kf5 e6 Ke5 e7 f5 e8B f4 Nd6 f3 Qd2 f2 Rd1 Re7 Bc6 Nf6 Ba1 Nh5 Ne8 Re6 Bg2 f1N Bf3 Rg6 Be6 Rg5 Qa7 Qg8 b8R Bb7 Ra8 Bc8 Qb7 Qf7 Qa5 Nd2 Qab5 Bd7 Rc8 Nb1 Q7a6 Qg8 Ba8 Qf7 Qba5 Qg8 Bf7 Kf5 Qc5 Nb5 Qac6 Be6 Q5d6 d4 Qd8 Bd7 Bc4 Ke5 Rh4 Qf7 Rg8 Bh3 h8R Kf5 Bg4+ Kf4 Qdd5 Qf8 Rg6 Qb4 Rg7 Qb2 Rg1 Qa2 Rd7 Rg8 Rg2 Rg5 Bf3+ R3g4 Qf7+ Ke5 Rdd8 Bf2 Qfd5+ Kf4 e4 Bg1 Be2 Bf2 Bf1 Kf3 Rd7 Be3 Rg1 Rgg2 Ng3 Kf2 e5 Ke1 Ke4 Kd2 Bfe2 d3 Bd1 Kc1 Nh1 d2 Bg4+ d1N Bf3 Rge2 Rg3 Rg2 Rgg4 Rg8 Kf5 Rg3 Qce6 Rg7 Qec6 Rg5+
1Nb4K/2p1q2n/1NR3R1/B2Rb3/nN1n1rPr/1NN3n1/P4Q2/R2QrB1k w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Rh6 Kd7 Ke2 b5 Ke3 e5 Ke4 b4 f4 b3 d4 b2 g4 Bb7 g6 Kd6 a6 Qd7 g7+ Qe6 a7 Nd7 f6 Qe8 Kf5 e4 f7+ Ndf6 Ne2 e3 Bd2 Qa4 Nc1 e2 Nb3 Rd8 a8N e1R Ba5 Rb8 Nc3 Qb4 Kg5 Rbe8 f5 Bc8 Nb6 Ne7 g8R Bg7 f8N Nc6 Nfd7 R8e4 Nb8 Qa3 Rh4 h5 Kg6 Rh6+ Kf7 Nh7 f6 Bh8 Rg7 Qb4 Kg8 Qc5 Rh3 h4 f7 Qa3 Rd3 h3 Rg6+ Bf6 f8R Rh4 Qe2 Rf4 Qf2 Nd8 Rdd1 Ne6 Rd2 Be5 Rff6 Qc5 Kh8 Qb4 Nca4 b1N Rd1 Na3 Nc3 Nc4 Rd3 Nb2 Rdd1 Na4 Rd3 Ke7 d6+ Ke8 d7+ Ke7 d8N Kd6 d5 h2 Ndc6 h1N Rd2 Qc5 Nb4 Ng3 Rg7 Bd4 Rdd1 Ke5 Rgg6 Qe7 d6 Ba6 d7 Bc8 Nb5 Ke4 d8Q Be5 Qdd2 Rh5 Qc1 Rh4 Rd5 Nd4 Qd1 Nc2 Qh2 Nd4 Nc3+ Ke3 Qh1 Kf2 Qhf3+ Kg1 Qfe2 Bd6 Qf2+ Kh1 Re6 Bc5 Rc6 Bd6 Re6 Be5+ Rf6 Bd6 Rg6 Be5+
2r1Q1r1/1P4b1/B1b2b1B/r1NQNn1R/3q1B2/2p1Br1R/2k1P1BR/R4n1K w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg2 f5 b4 g5 h4 c5 d4 a5 b6 c4 h6 g4 h5 a4 h7 c3 h6 f4 b7 g3 b5 a3 e6+ Kd6 e7 a2 e8B Bf5 b6 Be6 Rh5 f3+ Kh1 f2 Nd2 Qc8 Nb3 Nf6 Be3 Qd8 Bb5 Bg8 Bg2 f1R Nc5 Bg7 Ba6 Nc6 Qd2 Rf4 Nf3 Ng4 Ne5 Nh2 Qd3 Rc8 b8B+ Qc7 b7 Nf1 Qb5 Ne7 Qe8 Nf5 Rh3 Bf7 Rh5 Rf8 h8R Rg8 h7 Rf2 Bh6 Rf3 Ba7 Qd8 Rh3 Kc7 Bb8+ Kb6 d6 Ka5 d5 Kb4 d7 Qb6 d6 Bd5 d8B Bc6 d7 Ka3 Bdg5 Kb2 d8Q Kc2 Be3 Qa7 Rd1 a1R Qd5 Ra5 Ra1 Qb6 Ng4 Qb4 Bbf4 Qd4 Ne5 Rf8 Rg8 Bf6 Rg5 Rg8 h8R Bg7 Kg1 Bf6 Rgh5 Bg7 Bh1 g2 Rh7 N1g3 Kh2 g1B+ Kg2 Bf2 Kh2 Bf6 Bg2 Nf1+ Kh1 B2h4 Rh2 Bg7 Rg5 Bf6 Rhg7 Be7 Rh5 Bf8 Rg3 Bf6 Rgh3 B8g7
1Q3rnB/P5Nk/3R4/B1RR4/bK3b2/1Qp2NPr/1Br1BR1b/R2qb2n w - - 0 1 illegal: No proof kernel
N2Q1Q2/Prb2R2/1bR1b3/1rrR1R1Q/2k2P2/q1nr3n/1BBR1p2/1N1Q1K2 w - - 0 1 illegal: No proof kernel
RN1n3R/p4Nb1/rrbK1P2/k3b1r1/6BQ/P3B3/1RR2Q1Q/1qQRn2b w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 Ke2 Kd7 Kf3 Kc7 Ke4 e5 h4 g5 f4 b5 d4 g4 h6 b4 a3 b3 h7 g3 c6 Kb6 d6 g2 Kd5 b2 d7 e4 c7 e3 h5 e2 h6 e1B f6 Bg3 f5 Be5 f7 Nc6 Nh3 g1R Ng5 Ba6 c8R Rg3 Bh3 Bf4 Rh2 Qc7 d8Q Rd3 Bg4 Rb8 Nd2 b1B Nb3 Bc5 f8Q Rb7 Na5 Be7 Rb2+ Bb5 Nf7 Be5 Be3 B7f6 Qc1 Bg7 Qh4 Nd8 Nc6 Qb8 f6 Ka6 Qfc5 Rb6 Q5c2 Ba4 Qcf2 Ne7+ Kc5 Rf8 h8R Ng6 h7 Rg8 d5 Nf4 d6 Ng2 d7 Ne1 Rc7 Qb7 Nb8+ Ka5 Rc8 Bc6 Qhh2 Bd4+ Kd6 Rd1 Raa2 Bbe4 Rc2 Bh1 Rab2 Ne6 d8R Rd2 Re8 Nd8 Re4 Bc3+ Rd4 Re2 Rd1 Ra6 Ra2 Qb1 Rab2 Bd4 Nd7 Rd2 Ra8 Rd3 Nb8 Rb3 Qfh4 Rbb6 Q2f2 Re8 Rf8 Re7 h8Q Re5 Q8h5 Bc3 Rh8 Rg5 Qhh2 Bd4 Q5h4 Be5+
nb6/KRRbQ3/1R4r1/1rBqqRB1/Q1nN2p1/N2B4/2P1rRP1/3rB2k w - - 0 1 illegal: No possible last move
kr2r2B/Nn1R1Qq1/bKB1R3/2N2NQ1/2p3Pb/3n1P2/Br2rB2/1B1q1N2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 b5 Kd4 h5 Kc5 e5+ d6 h4 g4 e4 a4 h3 d4 e3 f6 h2 f7 c6 g6 e2 a6 e1Q g7 b4 f3 b3 d5 b2 a5 Ra7 Bc4 Rc7 a7 Qde7 a8B Ba6 Qd2 Kc8 Qg5 Nh6 g8Q Qd8 Nd2 b1R Ne2 Rb3 Bb2 Qe8 Nd4 Rh7 Nf1 Be7 f8N Bb7 a6 Rh8 a7 Qe5 Re1 Qf7 Nfe6+ Qf8 Qf7 Qd8 Nf5 Qg7 Re3 Rb6 Ba2 Re8 Rg1 h1R Rg2 Rb3 Rd2 Rh4 Re1 Re3 Kb6 Ba6 Nc5 Rh2 Bd4 Ree2 Bf2 Bb5 Rdd1 Na6 Bb1 Rb2 Re6 Nb4 Rd4 Qd7 Rd1 Ba6 Bb7+ Kd8 a8B Rc8 Rd2 Rb8 Rd3 Qc8 d7 Re2 Ka5 Kc7 d8N Qd7 Ba2 Rc8 d6+ Kb8 Kb6 Bf6 Rd5 Nd3 Bb1 Qe7 d7 Qd6 Na4 c5+ Bc6 Be7 Ba2 c4 Nc5 Qf4 Rd4 Qd2 Be4 Qd1 Bac6 Nf4 Beb1 Nd3 Bb5 Rb2 Nc6+ Ka8 d8B Bf6 Rd7 Rb8+ Rb7 Re2 Na7 Rg2 Bc6 Rh2 Qd2 Bh4 Qg5 Rg2 Bf6 Rh2 Qd7 Nf7 Bb2 Nd8 Qf7 Qh6 Bh8 Qg7 Ka5 Rg2 Rd7+ Nb7+ Kb6 Rd2 Bg3 Rge2 Bf2 Rb2+
kb2N3/3Q2RN/6Q1/1R1b1BR1/1P1rR2K/1RnB4/PBbBpq2/1r3bqn w - - 0 1 illegal: No proof kernel
b2bkB2/4q2B/n1R1Nq2/1B1BN3/1p1nNPBP/R2Q1N2/3rr1nn/1Q5K w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 f4 d5 Kf2 e5 Kg2 b5 a4 g5 h4 e4 c4 g4 f6 e3 a6 g3 c6 e2 a7 e1Q c7 d4 c5 d3 h6 d2 c6 Qd7 a5 Qf7 h7 Qg7 f7+ Ke7 a6 Qh6 Ra3 Bg4 c8Q Be2 c7 Nf6 Qb7 Ng8 c8B+ Kd8 Nc3 Be7 f8N Ke8 Nf3 Bd8 Ne6 Nf6 Ne4 Ng4 Qb6 Rf8 h8N Qf6 Ng6 Nh2 Nge5 Rh8 Qb3 d1N Qd3 Ne3+ Kg1 g2 Bd2 Be7 Bb4 Bd8 Bf8 Bd1 Qb7 b4 Qh7 Ba4 Qb1 Bc6 Qf5 Qg3 Bb5 Qgg7 Qh3 Qge7 Qg3 Nd7 Qh3 Rb8 a8B Nc5 a7 Na6 Bab7 Rh5 a8B Rf5 Nd3 Rc5 Nde5 Rd5 Qf5 Rd2 Qh3 Bd7 Bd5 Rb6 Qf5 Rc6 Qh7 Rcc2 Bac6 Re2 Bd3 Rcd2 Bcb5 Bc6 Qf5 Nhf1 Rh3 Nh2 Rg3 Nc2 Rg6 Nd4 Rh6 Ng4 Bc2 Ne3 Kh2 g1N+ Kh1 Rg2 Qh3 Rgf2 Qhf1 Ng2 Qd3 Rfe2 N6g5 Qeg7 Bg4 Qfe7 Rd6 Qh8 Ne6 Qhf6 Nd7 Ba8 Rc6 Nh3 Nde5 Ng5 Ng6 Nf7 Nge5 Nh6 Bf5 Ng4 Bd1 Ba5 Bh7 Nh2 Nfg5 Re3 Bg4 Ree2 Ngf3 Bd8
1q1Bb1R1/1k1BQK2/1b1q1n2/Q1R3NN/PN2R1N1/4b2b/p2NP3/1r2Rr1n w - - 0 1 illegal: No possible last move
KrN2N2/1Nb2QQ1/2n2R2/3b1qP1/R2PRp2/2B3n1/B1krN3/1qNRn2n w - - 0 1 illegal: No possible last move
2QN1rr1/2N2b2/4Nqqk/4npq1/1PbR1Rq1/5nB1/1RRR1P2/QBK3N1 w - - 0 1 legal: proof: e4 g5 h4 d5 exd5 b5 hxg5 b4 c3 b3 axb3 Qd6 b4 Bg7 b5 Bd4 cxd4 Qd8 g4 Kf8 b6 Kg7 d6 a5 g6 h5 d5 e5 d4 c5 Kd2 f5 d7 h4 d6 c4 g5 e4 d5 a4 b7 h3 Ra2 a3 Bd3 h2 Nc3 Ra5 Bb1 Qe8 d8N Nd7 b8R Ba6 Nb5 Ne7 Nc7 Ne5 d7 N7c6 d6 Rg8 b4 Qf7 Rc8 Nd4 Rb2 a2 Qa4 a1Q Nde6+ Kh8 d8R e3+ Kd1 c3 d7 Ndf3 g7+ Kh7 g6+ Kh6 Qa2 Rf8 g8R Bc4 g7 Qg6 Bd2 c2+ Kc1 Ra8 Bc3 Ng4 Be5 e2 Bg3 Nge5 Qa7 Qa6 Qd4 e1Q+ Qd1 Rf7 Rgf8 Rf6 g8Q Qe4 Qd4 Qd6 Qa7 Rb8 Qa1 Qeg4 Rfe8 Rf8 Re7 Qf6 Rg7 Qh5 Rg4 Qa6 Rf4 Qg4 Ne2 Qb6 Rd1 h1B Rd2 Bg2 Ng1 Bgf1 Ng5 Bf7 Nge6 Qc6 Re8 Bd3 d8N Bc4 Re7 Ra8 Red7 Qfg6 R7d4 Rb8 Ng7 Qcf6 Nge6 Kh5 Nb7 Qh3 Rfe4 Qhg4 Rde2 Re8 Na8 Ng5 Kd2 Bb3 Rc6 Rec8 Nac7 Kh6 Qe8 Rd8 Qd7 Rh8 Rc5 Rbf8 Nbd8 Rhg8 Qc8 Nd7 Kd3 c1Q Rcc2 Nf3 Kc3 Qcg5 Rf4 Nh4 Kd2 Nf3+ Kc1 Nde5 Red2 Bc4
B5k1/nr5n/N1KB4/1RQrP1p1/1N1Q1n1b/2N1nqP1/2q1b1Q1/R1N1N1Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 d5 fxe5 d4 h5 d3 cxd3 Bc5 d4 Qd6 d5 Qg6 hxg6 Bf8 Kf2 c5 Kf3 f5 e4 h5 b4 a5 d4 c4 d6 f4 b6 c3 b5 a4 d5 h4 e6 h3 b7 h2 d7+ Ke7 d8N c2 d6+ Ke8 d7+ Ke7 g7 a3 e5 a2 Ke4 f3 Kd5 f2 b6 Rh4 Ba3+ Rb4 Nc3 c1Q Nge2 Qb2 Nc1 Na6 b8N Nc7+ Kc6 Ba6 b7 Nf6 g8Q Be2 Na6 Ncd5 b8N Qc2 Nc5 Rb7 Nba6 Nf4 Qd4 Nh7 N5d3+ Rb4 Rg1 h1N Ne1 Ng3 Qg6 Ra7 Qge4 Nf5 Qed5 Nd6 Q5c5 Rb2 Rb1 Rbb7 Rb5 a1N Bb4 Bd1 Bd3 f1Q Be4 Bf3 Rh1 Be2 Qg1 Qf3 Ba3 Bg7 Bb4 Kf8 e7+ Kg8 e8Q+ Bf8 Qe6+ Kh8 Qh3 Nc8 Qd5 Bc5 Nc7 Ra4 N1a2 Bd1 Nde6 Rba7 Nd3 Qd2 Na6 Nb6 Qf2 Ra8 Nd4 Rb8 d8Q+ Kg7 Nde2 Qc2 Kc7 Qb3 Qdc8 Be3 Bd6 Rd4 N2b4 Nc2 Re1 Qa2 Qg1 Bf2 Qhh2 Bh4 g3 Qb2 Qhg2 Ne3 Qc4 Qd2 Ba8 Rd5 Qd4 Qc2 Rf1 Na4 Kd7 Rb7+ Qc7 Kg8 Re1 Rb6 Qcc5 Rb7+ Kc6 Nb6 Rf1 Nc8 Re1 Qd2 Rf1 Bb3 Rb1 Bd1 Ra1 Qc2 Nec1 Be2 Ne1 Na7+
4Brn1/K2N2R1/1qNnN2B/1p1B1q1R/2B2n2/QPN2rbP/Bb1k3n/5Q2 w - - 0 1 legal: proof: f4 c5 a4 h5 d4 e5 dxc5 h4 fxe5 b6 a5 h3 a6 Bb7 axb7 Nc6 gxh3 Nce7 h4 Nc6 h5 Nb8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 c4 a5 e4+ Ke6 c6 d5 c5 g5 h6 f5 h7 g4 c7 g3 c8B+ Nd7 b8N a4 c6 g2 c7 f4 Ne2 g1N Nc6 a3 Bb7 a2 c8N b5 Nb6 f3 Nf4+ Kf7 e6+ Kf6 e7 Kg5 e8B f2 e5 Ra3 e6 Ne5 e7 Nh3 Kc5 d4 Bc4 f1N Nc3 d3 Bef7 d2 Nd7 Rb3 Bfd5 Nf7 Ne6+ Kf5 Qe2 d1Q Bh6 Nd6 e8B Nf4 Qf3 Qc8 Kb6 Ra3 Rc1 a1B h3 Be7 Rg1 Bh4 Rg7 Nh2 Qf1 Bg3 Ba2 Rb3 Ka7 Qg4 Re1 Qd8 Bc4 Qf3 Rd1 Qe4 Rd5+ Qe5 Nb1 Ke4 Nc3+ Ke3 Ba8 Qe4 Rh5 Qf5 Bb7 Kd2 Ba8 Rb4 b3 Bb2 Bb7 Nf6 Ba8 Rf8 h8Q Ng8 Qh7 Qe4 Qf5 Qc2 Qc5 Qf5 Bd3 Re4 Qa3 Re3 Bc4 Rf3 Ncd4 Qh7 Bad5 Qf5 Nc6 Qb6+
1nR2b2/1k1NR3/b3rP2/3N3b/3nr1RQ/R2B1qNp/1q1RP3/1bQ1BK1N w - - 0 1 illegal: No proof kernel
1qK1nb1n/2R1NrP1/3N1R2/pbPRN3/1B1qB3/Q2N3k/R1Q1N1n1/1r4n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 c4 e6 b4 d4 f4 d3 g4 h4 b6 h3 f6 Kg6 b7 h2 b5 d2 b6 Be7 f7 Rh7 f8R Rh3 f5+ Kg7 c6 Rb3 f6+ Kg6 c7 Qd7 f7 Rc3 Ne2 Bc5 Ra2 Ba3 Bg2 Qa4 Be4+ Kg7 g6 Kh6 g7 Kg5 Nf4 Kh4 g5 Rb3 g6 Kg3 Nc3 Qe8 Qc2 d1Q Nd3 Kh3 Ne2 Na6 b8N Rb1 b7 Ne7 g8N Ra7 g7 Bd7 c8N Nc7 Nd6 Bb5 Nd7 Qb8 Bd2 Ne8 Bb4 Qd2 Re1 h1N Rd1 Ng3 Rc1 Nef5 Ne7 Nh6 Rf1 Qe3 Rf6 Qf2 Rh8 Qb6 f8Q Qd4+ Kf4 e5+ Kg5 Qd8 b8R Rb7 Ra8 Qb8 Ra7 Rc7 Rg8 Nf7+ Kg6 Nh8+ Kg5 Nf1 Kf5 Nh2 Ke6 Nf3 Rb7 Ng1 Ra7 Rc8 Rc7 Rd8 Bh1 e4 N7e5 e3 Bc6 Rd7 Be4 Bc1 c5 Bd2 Qf7 Be1 Qh5+ Bh4 Qf3+ Bg3 N7g6 Rf7 Ne7 Ba6 Kd7 Bc4 Nc3 e2 Qe3 e1N Ne2 Ng2 Qec1 Ng6 Qa3 Ba6 Rh8+ Bh4 Rh5 Nh8 Nc6 Bb5 Rd5 Qa7 Kc8 Bg3 Nb7 Bd6 Nce5 Qb6 Nf5 Bf8 Ne7 Qa7 Nd6 Qb8+
NN1N1N2/rn3P1R/1nNk4/3np1K1/Bn6/QQb1Qb1P/rB1Qq3/6qR w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 c5 Kf4 a5 d4 g6 b4 c4 d6 e6 b6 a4 d5 a3 b7 a2 f6 c3 h6 c2 h3 e5+ Kg5 Ra4 f4 Nc6 b8N+ Ke8 h7 Ra8 f5 Ra7 d7+ Kf7 b5 Na5 b6 Nc6 b7 Qc7 d8Q Bd7 d6 Nce7 Ne2 Nc8 Qd3 Qc4 Na3 Nge7 Qe3 Bc6 d7 Nb6 Nd4 Qe2 Nc4 Bf3 Bb2 c1N Ndc6 Nd3 Bg2 Rg8 h8Q Ned5 Qh6 Nc5 Qa3 Rg7 Raf1 a1N Rb1 Nba4 Nb6 Nc2 Na8 Ncb4 Qb6 Bd6 d8N+ Ke8 Qa5 Nab6 f7+ Kf8 Qe3 Bc7 Qa2 Bd6 Qab3 Ra2 Qa3 Bc7 Rbc1 Bd6 Rc4 Bc7 Rh4 Bd6 Na7 Ke7 f8N Bc7 f6+ Kd6 Nac6 Re7 Na6 Rg7 b8Q Nb7 Qh8 Rd7 f7 Re7 Rh7 Rd7 Kh6 g5 Qg7 g4 Qgg5 g3 Qd2 Na4 Qge3 Nb6 Bf1 g2 Kg5 Qe1 Bb5 Qe2 Ba4 Re7 Qf4 g1Q+ Qg3 Nc4 Qa7 Ba5 Q7e3 Nb6 Qab3 Nc2 Nab8 Bc3 Qa3+ Nb4 Qd1 Nc5 Qg2 Ra7 Qdb3 Qgf2 Qh2 Nb7 Qhf4 Qff1 Qd2 Qfd1 Qfe3 Qg1+
1KQB2b1/4qPb1/q2N1b1N/1P2brnB/6NR/p1B2BQ1/k5Nr/1n3BR1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 a3 f7 c4 b6 c3 b7 c2 f5 Kb3 g6 h3 g7 h2 g5 Ne7 Kd6 e5 g8B e4 g6 e3 g7 e2 f6 e1B Qf3+ Bc3 Nd2+ Ka4 b4 Bb2 b5 Rh4 Nc4 Ra7 Nh3 Rh6 Nf4 Rh3 Ng2 Rg3 Bd2 c1B Bc3 Nbc6 b8N Na5 Nc6 Kb3 N6e5 Rh3 Qg3 Nac6 Ng4 Bg5 Rc1 Qe8 d8N Nd4 Ra1 Ra4 Kc7 Be6 d6 Nd5+ Kb8 Nf3 d7 Qe7 Nd6 Rf4 Bh7 Rh4 g8B Bg7 f8Q Rf5 Bf7 Rh3 Be8 Bg8 Bh5 Bf4 B7g6 Ng5 Nf7 Be5 d8B Rh4 Rc1 Ka2 Nfh6 Ba1 Rg1 h1Q f7 Rh2 Rd1 Bef6 Rd4 Bb2 Qe8 Be5 Qc6 Ba1 Qc8 Bef6 Be1 Nc3 Re4 Nb1 Bc3 Rd5 Bf5 Bb2 Bd7 Rf5 Bc6 Ba1 Nf4 Qf3 Ng2 Qe3 Rd4 Q3e6 Bf3 Be5 Nf6 Bb2 Rh4 Ba1 Nfg4 Bef6 Nb7 Qa6 Nd6 Bb2 Bca5 Bbd4 Bc3 Bde5
1rN2k2/Q1b2p2/1b2q1R1/P1n2PbN/n1Q5/b1BQQ1QK/4Nq2/2rB1NR1 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 b6 e4 Qd6 e5 Qd8 d6 Kd7 e6+ Kc6 Ba6 Kd5 Bf1 Bd7 exd7 Ke6 d5+ Kf6 a4 c5 f4 g5 Kf2 Kg7 Kg3 e5 h4 g4 f5 e4 a6 e3 a7 b5 h6+ Kh7 a5 c4 h5 c3 Be2 c2 Bd2 c1B Bc3 b4 Nd2 b3 Nf1 b2 Qd4 b1Q Qc4 Be7 Bd1 Qb2 Ne2 Nf6 Rg1 Kg8 h7+ Kg7 h6+ Kf8 Ra2 Rg8 h8N Qb1 h7 Na6 Ng6+ Kg7 h8N Qe8 d8Q Nc5 d7 Qb2 d6 Rc8 a8Q Na4 Ngf4 Kf8 Nh5 Ne4+ Kh2 g3+ Kh3 g2 Qa7 Qb6 Qdc7 Ba3 d8Q Nec5 d7 Bg5 Qg3 Rc7 Qf6 Qee6 Qfe5 Rc8 Rd2 Rc6 Rd6 Rc7 Nef4 e2 Qee3 e1B Ne2 Qb2 Qge5 Bg3 d8Q+ Qe8 Qd7 Qe6 Q5f4 Bh2 Qfg3 Qd2 Rb6 Qe1 Qdd3 Qf2 Qgg4 Bhf4 Qgg3 Rc8 Rc6 Bc7 Ra6 Rb8 Rd6 Rb1 Ra6 Rc1 Ng6+ Ke8 Ne7 Kf8 Nc8 Rh8 Rh1 g1B Rd6 Bb6 Rc6 Bh2 Rg1 Rg8 Qgf3 Bhc7 Qg3 Qe8 Rf6 Qe6 Rg6 Ke8 Nd6+ Ke7 Qaa6 Rb8 Nc8+ Ke8 Qa7 Kf8
k1bn3r/2P1N2q/B4Qb1/K1p2RQ1/B5BP/1bB1Nq2/nR4rR/1Rb3B1 w - - 0 1 illegal: No proof kernel
1bN1RNr1/bP1N3N/1qk2n2/3b4/1p1BN1QR/r1b3P1/1n1Q1qK1/2RB3R w - - 0 1 illegal: No proof kernel
r1R3R1/P1b2Nr1/5knK/5q1B/P2n1R2/Qp1b2R1/QN2r2B/2BqBrR1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 c5 Kf4 b5 Kg5 e5+ f6 b4 h4 e4 f4 g6 d4 e3 a4 e2 d6 e1R d7 b3 h6 c4 d5 c3 d6 c2 a6 Re4 h5 Rd4 f5 Rf4 a7 Na6 h7 Qe8 d8R Rf2 h6 Rd2 d7 Qe5 Na3 Rd3 Qd2 Rb8 Nf3 Qe2 Rg1 Ne7 Rg3 Bb7 Nc4 Nc6 Nb2 Nc7 Rc8 Qd1 d8B Ra8 Be2 Nb5 Ba5 Rg8 h8R Bd6 h7 Ne7 Kh6 Rg7 Rhg8 g5 h8B g4 Bb4 Qf1 Bd1 Ba6 Qe2 Bc7 Be1 Rd8 Rb1 Ng6 Qg2 Nf8 Ne5+ Ke8 f7+ Ke7 Qe2 Ng6 f8R Nd4 Nf7+ Kf6 Qh2 Re8 Ra1 Ke7 f6+ Ke6 Qg2 Qf5 Rd3 g3 Be3 c1Q Ng5+ Ke5 f7 Qd2 Nc4+ Kf6 Bh5 Qh3 B1f2 Ke7 Bg1 Nc2 Bh2 Qe2 Rh1 Qe6 Bc1 Qd1 Qe2 g2 Rg3 g1R Qg2 Ne1 Qa2 Nc2 Nb2 Rf1 Rhg1 Bd3 Rb8 Qdg4 Rb4 Qef5 Rf4 Reb8 Rd8 Qd1 Rdf8 Rb5 Rc8 Re5 f8Q+ Kd7 R3g2 Rge7 Rg3 Re2 Bc3 Rg7 Nf7 Ke6 Be1 Nd4 Qfa3 Kf6
4N3/1r1RBpR1/2k2n2/Qr3BBr/2B1q1R1/1RQ2Pnn/1P1B1bK1/4rr1N w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Bd7 exd7 Kg6 Rh5 Bg7 Rh1 Bf8 g4 e5 b6 c5 b7 h5 f3 a5 Kf2 e4 Nh3 a4 Bc4 e3+ Kg2 e2 Nf2 e1R Qb3 a3 Qc3 a2 Nd2 h4 Rg1 Nf6 Nde4 Be7 Nh1 Qe8 d8Q Ra7 d7 Nh5 d6 Ng3 Nf6 Rh5 Qda5 Re5 d8B Nd7 b8B Rb7 Bd2 Rd5 Rae1 a1R Re3 Re1 Bbc7 Kg7 g6 Kf8 g5 h3+ Kh2 Ne4 Rg4 Nf2 Kg3 h2 Kg2 Nh3 Bb6 Nb8 d7 Bd6 Bbc7 Bg3 Bf4 Qe4 Ne8 Bf2 Bf6 Rf5 d8R Nd7 Rd3 Re5 Rb8 Rf5 Bd8 Nf6 Rd7 Rc7 Rb3 Rb7 Bd3 c4 g7+ Kg8 Be7 Rfb5 Qc2 c3 Bc4 Rf1 Qd3 c2 Qdc3 c1R Bfe3 Kh7 g8B+ Kg6 Bf4 Kf5 g6 Rce1 g7 Rh8 Bg5 Rh5 Qd3 Ke5 Bh7 Qf5 g8R Qe4 Ng3 h1N Bf5 Ba7 Qc2 Bd4 Rg7 Bf2 Nd6 Kd4 Qcc3+ Kc5 Ne8+ Kc6 Qa1 Qd3 Qaa5 Bg1 Ne4 Ng3 Nf2 Qe4 Nh1 Bf2
1bQ1n3/k1BR2nq/BN1RbK2/2n1p3/2r4P/2b1PnBN/BN2q3/B2N3Q w - - 0 1 illegal: No possible last move
2K5/1bnnB2B/1kB1N1NR/1p4B1/3rQ1qR/nPnP1R1q/B3Q3/3R1qb1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 hxg5 b5 a4 a6 a5 Ra7 Ra2 Rb7 Ra1 Rb6 axb6 a5 Ke2 Kd7 Kd3 c5 Ke4 e5 f4 h5 g4 c4 d6 Kc6 g6 h4 d7 c3 g5 c2 b7 a4 d3 h3 g7 h2 g6 a3 f6 a2 Kf5 e4 Ke6 e3 f7 e2 f5 e1N f6 Rh5 Bg5 c1N Bg2+ Kb6 Bc6 Kc7 Ne2 Nb3 Nf4 Na6 b8R Nh6 g8B Bb7 g7 Bc8 Na3 Nc1 Nc2 Bc5 f8B Bf2 f7 Bb7 Bfe7 Qc8 f8R Ng4 Qe2 Nf6 Nd4 Rh4 Ng6 Nc2 Bh7 Na3 g8B Ba8 Rb6 Bg1 Qe4 Ne2 Rd1 a1Q Rf7 Nd5 Rf3 Nb8 Ra6 Qc1 Ra4 Kb6 Kd6 Ndf4 Ne6 Nd5 d8Q+ Nc7 Qe8 Nc3 Qe2 Nd7 Bf7 Rh3 Rh4 Qb1 Rh6 Rh4 Nd4 Rf4 Ba2 Ne5 b3 Re4 Rd2 Qg4 Qd8 Bf2 Ne6 Qf1 Rd1 Bd4 Qd7 Bg1 Qd8 Nec4+ Kd7 Ne5+ Kc8 Rc4 Qd6 Nd7 Qf4 Rd4 Qf5 Be3 Rg1 h1Q Qe4 Qh2 Rgg3 Bg1 Rgh3 Qhg3 R3h5 Q3h3 Rh4 Bb7+
1bk1q1r1/q1pbK1R1/5QNR/N1n5/P1PRQNR1/5bqB/2N2r2/BRq5 w - - 0 1 illegal: No possible last move
1N1BQ1rk/1bpQQ3/4b2P/bB5q/5q2/1R1Q1RB1/K1Prr3/r1BB1Nn1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 f4 Ke7 e4 Qe8 e6 Kf6 e7 Ke6 e5 Qd8 Kf2 Nc6 Ke1 Nd4 f5+ Kd5 Bd3 Kc5 Bf1 Ne6 fxe6 Kb4 Ke2 Kc4 Ke1+ Kc5 Kd2 Kd5 Kc3+ Ke4 Kb3 Kf5 e8B g5 h4 d5 h6 Kg6 b6 Kh7 h5 f5 e7 a5 b7 d4 b8B f4 e6 d3 Be2 d2 Ba7 f3 B8b5 f2 e8Q f1B e7 g4 Bf2 a4+ Ka2 g3 b4 a3 Nf3 g2 Qd7 g1R e8Q+ Ne7 Nd4 Rhg8 Rh3 Bb7 Rb3 R1g2 Bg3 Kh8 h7 Nf5 Nc6 Qh4 Qee7 Qf4 Nb8 Nd4 Bg4 Be2 Qf1 d1Q Nd2 Bc4 Qd3 Qe2 Nf1 Be6 Rb1 Qee5 Bd1 Rd2 Rb2 Bh3 Rc3 Ne2 Rbb3 Bf5 Q3d5 Ng1 Rf3 Be6 Qd3 Qef6 Bc6 Q6f5 b5 Ra5 b6 Re5 Ba4 Ree2 Bb5 Be4 b7 B4d5 Qed8 Bb4 Q8e7 Qg6 Na6 Bc6 b8Q Ba5 Qbe8 Bb7 Nb8 Qgf7 Kb1 a2+ Kb2 Re4 Ka3 a1R+ Kb2 Rb1+ Ka2 Kg7 h6+ Kg6 h8B Kh7 Bg7 Q7f5 Qa3 Ree2 Bf8+ Kh8 Be7 Q5g4 Bd8 Qh5 Qae7 Ra1+
1bbNn1b1/Nr1P3b/b2N3K/5RB1/BQB2N1B/1B1pqkr1/Q2Pb2R/8 w - - 0 1 illegal: Other
rk5b/nbRRp1Q1/3R2bB/Nn1RP3/1Q5B/b4Pr1/4BnBr/2K1NB2 w - - 0 1 illegal: No possible last move
8/NNrQ1N2/2bKbqB1/2n3bP/rBPB1p1n/1k6/2rBBNpR/2R2Q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kf3 Ke6 Kf4 a5 e4 d5 h4 f5 c4 g6 b4 d4 c6 d3 c7 a4 h6 d2 h7 a3 b6 a2 b7 Ra6 b5 Ne7 h5 Ra5 b6 Ra8 Nc3 Nbc6 b8B Rg8 h8N Qd6 b7 Na7 Na4 Qb6 Be2 Rg7 Nf7 Nac6 Qf1 d1B Nh3 Nb4 Ba7 Na6 b8B Nc5 Rh2 Bd7 c8N Bc6 Rb1 a1R Bd6 Ra2 Nf2 Rc2 Bd2 Rh7 Rc1 g5+ Kf3 g4+ Kf4 Qd8 Bb6 g3 Na7 Nb7 Bd4 g2 Ba3 Nc5 Bab4 Kd7 e6+ Kc7 Ke5 f4 Nh6 Nf5 e7 Nh4 e8B Be7 Bg6 Bg5 Nf7 Kb7 Bg4 Ka6 Be2 Qh8+ Kd6 Qg7 e5 Qf6+ e6 Rg7 Bed3 Bg4 Be2 Bf5 Nd8 Rc7 Nf7 Qh8 e7 Be6 e8Q Qf6 Nc3 Kb6 Qd7 Ka6 Ba3 Ka5 Nce4+ Ka4 Bab4 Na6 Bf5 Kb3 Nc5+ Ka2 Nb7 Nc5 Bg6 Kb3 Nc8 Ra1 Na7 Ra4
1N1Rn1NQ/n4q2/1br1nrR1/K3kP2/N3NN1p/4RP2/Bp2brR1/B1Q5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 Kf7 d4 b5 Kd2 h5 Kc3 c5 a4 e5 g6+ Kf6 f3 h4 a6 c4 a7 e4 a5 e3 a6 e2 g5+ Kg7 d6 e1R Kb4 c3 d5 c2 Ne2 Bd7 Ra2 Ne7 Nbc3 Qc8 Bb2 c1N Ba1 Be8 d7 Nd3+ Ka5 b4 d8R b3 d6 Ne5 d7 Ng4 Qc1 Bf7 Nf4 Bc4 Ne4+ Nf6 Rg2 b2 Rhg1 Bb5 Bc4 Re2 Re1 Ned5 Ba2 Rf2 Re2 Rh6 Re3 Kg8 g7 Kf7 g8N Be2 g6+ Kg7 Ne7 Nc7 Nc6 Bc5 Re8 Ne6 d8R Qb7 Rd6 Nbd7 Nb8 Nb6 Red8 Nc8 Rb6 Ne8 Rbd6 Kg8 g7 Kf7 g8N Rf6 Rd1 Ncd6 Rdg1 Nb5 Rg6 Qd5 R1g2 Qd7 Nc6 Rc8 a8Q Bd4 Nb8 Rc6 a7 Qe7 Qb7 Bc5 a8N Na7 Qc8 Qf8 Nb6 Qg7 Nh6+ Ke7 Na4 Qf7 R2g5 Bd4 Rg2 Bb6+ Kb4 Ng5 Rd2 Nd6 Qh8 Ne8 Rd8 Ne6 Rd2 Bc5+ Ka5 Bd4 Nec3 Kd6 Ne4+ Ke5 Ng8 Bc5 Rd8 Bb6+
2n1B3/1B2Rrk1/R1qBPb1N/1R1NBRPr/R1p1Q1p1/b5nn/Q3b1K1/8 w - - 0 1 illegal: No proof kernel
1k1BNR2/R2bK2N/Q1P1b2N/2N1rQp1/1NQn2BQ/4b1np/r2n2P1/4q3 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 dxc5 b4 h5 b3 axb3 Qc7 b4 Qb6 b5 Qg6 hxg6 Ba6 Rh5 Bb7 Rh1 Bc8 Kd2 Kd8 Kd3 Kc7 Kc4 e5 Kd5 h5 f4 a5 b4 a4 c4 h4 f6 h3 g7 d6 f7 a3 b6+ Kb7 f5 a2 f6 e4 c6+ Ka6 b7 Ka7 c7 e3 b5 e2 b6+ Ka6 c5 Bf5 c8N Nh6 g8N Nc6 b8Q Bg4 b7 Ne5 c6 Bd7 Bd2 Bg4 Qe1 Nf3 Qh4 Bh5 Ke6 d5 Nc3 d4 Ne4 d3 Nc5+ Kb5 Ba5 e1Q+ Ne2 d2 Qa7 d1B Bd8 Bg7 f8Q Rb8 f7 Ba4 Ke7 Nd2 Qa8 Be5 Nc1+ Be2 N1d3 Bb3 Qa7 Bd4 Nb4 Be6 Qa8 B2c4 Be2 Bd7 Rf1 Be3 Bg4 Bce6 Qa3 Ra8 b8Q+ Kc4 Qe5 Kb5 Qf5 Ra5 Qe8 Ra6 f8N Rh7+ Kd6 Re7 Qef7 Ra4 Nh7 Ra5 Rd1 a1N Rf3 Nc2 Ra1 Nd4 Qad3+ Bc4 Qf1 Ra8 Ra7 Re4 Qd3 Re5 Qa3 Bce6 Ke7 Qg1 Rc7 Ra5 Nd6+ Kb6 Ne8 Qe1 Qad3 Ra7 Qc4 Ra3 Qfd3 Ra2 Qff5 Nf7 Nh6 Nd6 Rc8+ Ka7 Rc7+ Kb8 Ra7 N6e4 Qa3 Ng3 Qaa6 Ra1 Qg6 Nc2 Rf8 Nd4 Qf5 Ra2
2b3RQ/r4n2/NKp2Qn1/q2Q1B1Q/1B1B4/PNpR2nQ/2k2r1P/4b1Bb w - - 0 1 illegal: Other
2QrN2K/1Rr1Q1b1/1PpR4/rpQ2n1B/1RN3QB/2R5/q4P1k/2R1nbn1 w - - 0 1 illegal: No proof kernel
Q1rN1q2/1R1n1Pr1/1B2Q1Bk/2PQ4/4Q2p/R4b1Q/3bnr1p/NBb2B1K w - - 0 1 illegal: Other
3bK1B1/1k1B1PnP/5QQ1/r1B1nNR1/1q1p4/2R2b2/bQ1p1rB1/QNQn4 w - - 0 1 illegal: Other
2NR1Qb1/1N1PpQ2/4r2N/1p4P1/5K1b/1Bn1B3/Nbn1Br1q/1k2BRBn w - - 0 1 illegal: No possible last move
B2R4/r1PRb3/1NNRN2p/1rN1B2K/2Rp3R/b4P2/qQ2bk1n/1Q1n3n w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 d5 Kg4 e5 b4 a5 c4 e4 b6 d4 c6 e3 c7 a4 g6+ Kf6 c5 Ke5 g7 Ke4 b5 h6 c6 a3 b7 e2 b6 e1N Kh5 a2 g4 Rh7 f6 Nd3 g5 Be7 f7 Ra7 f8N Na6 b8Q Nb2 g6 Na4 b7 Nb2 Nd7 Qe8 Nc3+ Kf5 Na4 Ke4 Nf3 Nc4 Bg2 Na5 Nac5+ Kf5 Ng5 Rh8 Nge6 Nb4 Rh4 Nd3 Bf4 Qf7 Be5 Nc4 Nb6 Ne3 Qb1 Nd1 Bd5 Bd7 c8R Be8 c7 Bb5 f3 Bc4 Qb2 N3f2 Rd8 Be2 Rc1 a1B Rd7 Nh1 Rc2 Bb5 Qb1 Bb2 Rd6 Ba3 Qb2 Be2 Rc4 Bf8 Rd7 Ne7 g8R Nc6 Rd6 Be7 Rgd8 Rf8 R8d7 Rh8 Bf4 Ne5 Bg3 Ng4 Be5 Qg8 g7 Nh2 Bc6 Qf8 g8R Qf6 Nf4 Qe6 Rgd8 Qd5 Nfe6 Rg8 Rc3 Qa2 Rc4 Rh8 Qc8 Rg8 b8N Rg4 Ba8 Re4 Bf6 Re5 Nc6 Rd5 Qb7 Re5 Nca4 Rb5 Nac5 Ng4 Nf8 Kf4 Ne6+ Ke3 Be5 Nh2 Qa6 Ra5 Qab5 Kf2 Q5b3 Rb5 Qd3 Kg2 Qdb1 Kf2
1n2NbN1/1P1B1r2/n1QN2Qq/1p5R/r2B3n/1b6/k1NP2pK/r1BN1BR1 w - - 0 1 illegal: No proof kernel
2NBR2B/5rr1/4Rbn1/1n1R3P/b2p2q1/1bPBp1k1/Q2q1N1R/KQ2RB2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb2 Ke5 a4 d5 f4+ Ke4 h4 e5 h6 g5 f6 b5 c6 b4 h7 g4 h5 b3 c7 d4 a6 g3 a7 g2 f7 Qf6 c3 Qg6 a5 Qc6 f5 Nf6 a6 Nbd7 Nh3 g1Q Nf2+ Kd5 Na3 e4 Nb5 Ke5 Bg5 e3 Qb1 Ne4 f6 Qc4 Rh2 Qg3 Nd6 Bg7 f8R Rg8 h8B Qd3 f7 Bf6 Rd8 Rg7 f8R Qg4 Rg8 Bb7 c8B Nf8 Bf5 Bd5 Nc8 Ng6 Rge8+ Be6 Bh4 Kf4 Rd5 Nd6 Be4 Bd7 Re6 Ba4 Bf5 Qdd1 B5d3 Nb5 Bg5+ Kf3 Bh4 Rb8 a8R Rbb7 a7 Rbf7 Rb8 Qe1 a8Q Kf4 Bg5+ Kg3 Qa5 Be5 Bd8 Bf6 Qa2 Qed1 Qb4 Qe1 Rd1 Qd2+ Kb1 b2 Re1 Rd7 Rb7 Rdf7 Rbe7 Bd1 Re8 Bb3 Qaa5 Ba4 Ka2 b1B+ Ka1 Bbc2 Qb1 Bab3 Qa3 Ba4 Qaa2 Bcb3
Rrq2Q1r/1rNQ4/7p/1Rp2R1P/nB3NB1/3R2bK/R3nPQ1/1k1b1Q1q w - - 0 1 legal: proof: d4 b5 g4 d5 a4 f5 axb5 e5 gxf5 Qd6 dxe5 Qd8 c4 Ne7 cxd5 Ng8 e4 Kd7 b4 c5 h4 g5 e6+ Kd6 b6 Ke5 e7 a5 e8Q+ Qe7 f6 a4 b7 a3 d6 g4 b5 a2 d7 h6 d8R g3 b6 g2 f7 Qe6 Ba3 Nd7 b8R Bg7 f8Q Ra4 b7 Ngf6 Nh3 g1R Qg6 Rb4 Qg2 Qd6 Ra8 Nb8 Nf4 Ng8 Nc3 Qd7 Ncd5 Nc6 b8R Nf6 Rb5 Nd4 Nc7 Ne2 h5 Qc6 Rh4 Bg4 Rd3 Nd7 Qb1 Rb3 Bb4 Nb6 Rhh3 Qe8 Rhf3 Qc8 Qd1 Rh1 Qc1 Na4 Qc4 Ng1 Be2 Bf6 Kf1 Bh4 Rc1 Bg3 Rc2 a1Q+ Bd1 Rh4 Ra2 Bf5 Qc1 Rg4 Be2 Rg7 Qe1 Rf7 Bd1 Bg4 Qe2 Kf6 e5+ Kf5 e6 Qc1 Qe1 Ne2 e7 Ke4 e8Q+ Qe6 Bd2 Rf6 Rb4+ Qc4 Rc3 Bf5 Qg1 Qd4 Rbb8 Qd5 Kg2 Rb5 Qef7 Qc8 Nd3 Rfb6 Qef1 Nd4 Qd7 Bg4 Rf5 Rb4 Nf4 R6b5 Ra6 Be2 Rba8 Rb8 Ra5 R4b7 Rb5 Qc6 Kh3 Bf3 Bb3 Qd5 Bc4 Bd1 Be2 Qc6 Bg4 Ne2 Rcb3 Qd5 Bb4 Qc6 Qh7 Kd4 Qh2 Qh1 Rd3+ Kc4 Rdd5 Kb3 Qd7 Nb2 Rd3+ Kc2 Qdg7 Kb1 Qd7 Qc6 Qhh1 Na4 Qhg1 Qh1+ Qh2 Qg1 Qhg2 Qh1+
N1B1r3/R1bbN1n1/4B2p/P1prq2Q/BK4P1/B1Nq2kN/q4N2/R2n1Q2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 e5 Kc3 b5 a4 h6 f4 c6 f6 Kg6 f7 Kf5 a6 e4 a7 e3 d6 e2 g6 Kg4 d7 Rh7 d5 Be7 f8N Rh8 g7 Qb6 d8N Bh4 d6 Nd7 f5 Be7 f6 Nc5 f7 Ne6 d7 Qb8 Nb7 Qh2 d8N Bc5 Ng6 Rb8 a8B Qh5 f8Q Bd4+ Kb4 Bb2 Ne7 Qh3 Nc3 Kg3 Nc5 e1Q Bb7 Qe5 Qh5 Bd7 Bc8 Nf6 g8B Ne4 Nd3 Ng7 Ne6 Nf2 Nc7 Nd1 Nf2 Qhe6 a5 Qa2 Be6 Rb6 Qff7 Re8 Na8 Rb7 Ngh3 Rb8 Bb7 Rbd8 Rb1 Ba1 Ba3 Bb2 Qf6 Bc1 Bd3 Be3 Rb3 Bb6 Bc2 Bc7 Rg1 Bc8 Rb1 Rd5 Ba4 Bd7 Rc1 Qc2 Ra1 Qd3 Kb3 b4 Bc8 Qg6 Kc4 b3 Kb4 b2 Rf1 Qd3 Re1 Kh2 g4 Kg2 Re2 b1Q+ Rb2 Qa2 Qff5 Qdg3 Qd3 Qf3 Qf1+ Kg3 Rd2 Rd6 Rd5 Qd3 Rb5 Rd5 Rb7 Rf8 Ra7 Rd8 Ng5 Re8 Ngh3 c5#
B3Q1NQ/BNb3Q1/kq4PB/2BPpK1n/1Qn5/rp6/Q1qr1R2/b2b3R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 e5 Ke4 c5 f4 Kc7 g4 b5 a4 Kb7 d4 h5 f6 c4 f5 h4 g6 b4 g5 h3 a6+ Kb6 d6 c3 d7 c2 a5+ Ka7 f7 b3 g7 h2 g6 Rh7 f6 Ne7 g8Q Nf5 Ra2 Bg7 f8B Rh4+ Qg4 Nh6 f7 Bf6 Be3 c1B Nh3 Qc7 d8Q Qb6 Rf2 Qb5 Qe8 Be7 Nc3 Qe2 Bg2 Bd8 Nd5 Bb7 Bc5+ Bb6 f8B Qd2 Nf4 Nf5 Nd3 Rh3 Qg7 Nc6 Ne7 Qc2 Ng8 Bb2 Bh6 Ba1 Qf4 Nfe7 Qd2 Nd5 Qb4 Nf6+ Kf5 Nh5 Bfe7 Bb2 Beg5 Rg3 Be3 Ba1 Bd5 Rg2 Bf3 Nb8 Bc6 Nd7 d5 Bc8 Bb7 Rg1 Bed4 Rd1 Bde3 Rd2 Bc6 Kb8 a7+ Kc7 a6 Ba5 Re1 h1Q Bed4 Qh4 Rh1 Qd8 Bde3 Rb8 a8Q Rb6 a7 Ra6 Qee7 Bb6 Qh8 Ra3 Qeg7 Ba6 Bed4 Qb8 Bb7 Ba5 Bc6 Qb6 Qaf8 Bc4 a8Q Ba6 Qae8 Bc8 Bde3 Kb8 Qff6 Ka7 Ba8 Ka6 Qff8 Qb7 Ba7 Bc7 Bec5 Qc6 Qff6 Nb6+ Qfe6 Nc4 Q6d7 Qb6 Qde6 Bb7 Q6d7 Ra5 Qda4 Bc6 Qa2 Bb5 Rc1 Ra3 Rh1 Qb2 Nf4 Qc1 Ne6 Qd1 Nd8 Qc2+ Kg4 Bd7+ Kg5 Bf5 Nb7 Be4 Kg4 Bf3+ Kg5 Qb2 Kf5 Bd1 Bd4 Qc3 Bc5 Qc2+
2R2Qr1/5N1N/k3KpP1/bR1n3p/PqBQ1R2/2BQ3r/4bQn1/1q1rR1Q1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Kg3 b5 Kf4 c5 Kf5 Kc7+ e6 Kb7 a4 h5 g4 b4 e4 f6 d4 c4 e5 c3 a6+ Kb6 d6 b3 a7 c2 d5 b2 g6 Rh6 g7 Nc6 g5 Rh7 g6 Ba6 d7 Bb5 e7 Rh6 e8R Bd6 e6 Be2 e7 Qc8 Nd2 b1R Ndf3 Nd8 Bb2 c1Q Ng5 Bc4 Nh7 Qd2 Bc3 Qc6 Rh4 Bb3 Nh3 Qg2 N3g5 Bc7 d6 Kb7 Rf4 Bf7 Bc4 Rb8 a8R Ba5 Qg1 Rd1 Rb1+ Qb6 Rb5 Ne6 d8Q Qb2 d7 Qb4 Qf2 Rc8 Qg1 Rc6 Rc8 Rcd6 Qf2 R6d3 Qg1 Rh3 Qf2 Nc7 Qg1 Bd5 Nf7 Ka6 Qf2 Bc6 Qg1 Nd5 Ke6 Qb8 Qf2 Ne3 Qg1 Bf3 Qf2 Ka7 Qb6+ Ka8 d8Q Ng2 Qd3 Be2 Qbd4 Qb1 Red8 Qb4 e8Q Ne7 g8Q Nd5 Qgf8 Qb1 Rd6 Qb4 Rdb6 Ka7 Rb7+ Ka6 Re7 Qb2 Qd7 Qb1 Qc7 Qb4 Qcc5 Qb7 Qg1 Qb1 Qdf2 Qb8 Qcd4 Qb4 Nhg5 Rh8 Nh7 Rg8 Kd7 Bf3 Re1 Be2 Ke6 Qb1 Rcc5 Qb7 Rc8 Qb6+ Kd7 Qc5 Ke6 Qcb4
4q2n/3qkb2/QQQ1P3/Qb1p4/3RrbR1/pP4BN/2NnQ1R1/KB1rR3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Kc3 d5 e4 a5 h4 f5 e6 g4 b3 a4 Kb2 g3 c4 g2 e7 f4 e5 f3 c6 f2 b6 Bg7 h6 Ra6 h7 Nf6 b7 Qa5 c5 Bf5 c7 Ne4 c8Q+ Kf7 e8R Bd7 c6 Qe1 h5 Bf8 c7 Qa5 h6 Qe1 e6+ Kf6 Ra2 Rd6 Na3 Qe3 Qe2 Qg3 Ka1 Qg7 Bf4 Nd2 Nh3 g1Q Nc2 a3 Bg3 Nc6 b8Q Ne7 Qb6 Ng6 Qca6 Rc6 c8Q Bd6 Rg8 Rc4 Qcc6 Re4 Qaa5 Qg2 Qea6 Bf4 Bd3 Be8 Re1 Qa7 Rg7 Rf8 h8R f1B h7 Bf7 Rhg8 Rc8 h8Q Qd7 Qh5 Nh8 Qe2 Ke7 Rg4 Qf3 Rh4 Qh5 Rgg4 Rc7 Nd4 Qg6 Bb1 Qg8 Nc2 Qge8 Qef2 Bb5 Qe2 Bg5 Qcb7 Rc3 Q7c6 Rd3 Rb2 Re5 Rd4 Bf4 Rg4 Re4 Qf3 Nf1 Ne3 Qa8 Rg2 Rd1 Nc2 Nd2 Qe2 Qae8
3R4/1r6/4p2k/p1rPb3/1nb1qqnN/2QPRBNn/K1RR1BR1/N4N1Q w - - 0 1 illegal: No possible last move
7B/3bB3/bPKQ2R1/4bBQN/p7/1Q2NQ1r/1p1nnBP1/Brkq1q1R w - - 0 1 illegal: No proof kernel
4B1qR/RR2B1P1/2RqQ1N1/Nq3nb1/p2NP1N1/p2kN2r/b6Q/3nK1r1 w - - 0 1 illegal: Other
1B2N3/R1B1n1pN/n1Q1rB1p/1q3B2/P1R1b3/1Nq1r1QN/2Bbk1P1/4n1K1 w - - 0 1 illegal: No proof kernel
4Nkr1/R3pB1n/5q2/1p3BBn/5P2/r6b/PrRQqbKB/2QRRN1B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 h5 d4 b5 d6 c5 a6 h4 d5 c4 a7 h3 g6 c3 g5 h2 g7 c2 g6 Nd7 f6 Rh4 Nf3 Rd4 Nbd2 Qa5 f7+ Kd8 Bd3 Qa3 Kf1 Qc5 Ng5 Bb7 Nge4 Rc8 a8R Qb4 Kg2 Qc4 Re1 h1R Nf6 Bc6 Ra7 Rb8 Ne8 Rb7 Bf5 Rhh4 Nf1 Qe2 Bg5 Rd2 Qc1 Ngf6 g8B Ra4 g7 Nh5 Bgh7 Rb6 g8B Bh6 f8R Rb8 Bf7 Ndf6 d7 Ra3 Be4 Ra8 Bhf5 Nh7 Rg8 Bb7 Rg6 Ba6 Rc6 Bc8 Qb1 Bb7 Nd6 Bg7 Kh2 c1Q Bh1 Rb3 Kg2 Rdd3 Rc2 Bd4 Qb2 Rf3 Qa3 Qb2 Rad1 Qc3 Qc1 Rb2 Kg1 Kc7 Kg2 Rg8 d8B+ Kb8 Bd3 Bc8 Be4 Bg4 Bf5 Rh3 Ba5 Qc6 Bad2 Bc5 Bdf4 Ra3 Bh2 Be3 Ne8+ Qd6 Nc7 Qf6 d6 Bb6 d7 Bc5 Ra4 Kb7 d8Q Kc6 Bc4 Ba7 Qdd2 Bc5 Ra7 Bd4 Bfd3 Kd7 Bf5+ Kd8 Nd5 Ke8 Nc7+ Kf8 Bf7 Qee6 f4 Bf2 Ne8 Qe3 Qd4 Qe2 Qdd2 Bh3+
1qb2Q1b/3p2Q1/1R1r4/1N2BRKP/nR1PRbN1/4q3/2BpB2B/n1k2r1R w - - 0 1 illegal: Other
3B1k2/1Bnp1qbB/p1b2R2/2qb4/r2r1N2/Q1B1RN2/1KPQ1PQ1/nB2Q3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 h5 Kc3 e5 b4 h4 g4 h3 b6 e4 g6 e3 f6 a6 c6 e2 g5 e1Q+ Bd2 h2 c7 Rh6 b5 Qe2 b7 Qf3+ Bd3 Ba3 f7+ Ke7 f8Q+ Ke6 g7 Rh7 b6 Qe8 g6 Nc6 b8B Qg3 b7 Qg2 Qe1+ Qe4 Ne2 Nf6 g8B+ Qf7 g7 Ne7 Nf4+ Kd6 Rg1 h1B Rg6 Bc5 Kb2 Qd4+ Bc3 Bd5 Ra3 Rh4 Nd2 Qe3 Bh7 Bd4 g8Q Rg4 Ba7 Rb8 Bb6 Be5 Bf1 Qc5 Nf3 Rh4 Qh6 Nc6 Bc4 Ke7 Ba2 Ne8 Bb1 Na5 Rf6 Nb3 Qg2 Na1 Qhg5 Kf8 Rb3 Ra8 b8Q Bcb7 c8B Bbc6 Bd8 Nc7 Qb4 Rb8 Qa3 Rb4 Bb7 Ra4 Qf5 Rc4 Qd3 Ra4 Qdd2 Rd4 Bb4 Rg4 Re3 Rh4 Bc3 Ra4 Rd6 Bg7 Rf6 Rg4 Nh3 Rgc4 Nf4 Rd4
1b6/2PR1K2/N1P1B2p/1b1QBQ2/1R2B2k/R1N1B2p/3R1nbn/B2rqqr1 w - - 0 1 illegal: Other
N1BN3k/1pr1K3/R1rB4/2bPNNBB/2N1b2P/1q5b/2n1QqQp/n2R4 w - - 0 1 illegal: No possible last move
1rQ1N3/p2Q2RR/1BKNP2Q/2N5/4qNpq/2r2bq1/k1P2Q1Q/1n1Bbn2 w - - 0 1 illegal: No possible last move
1K4rn/2B1NR2/R1qQrRQ1/p1Q2p1b/2B4r/P2n1RN1/2k1P2Q/Q2b1r2 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 Qe7 Qd2 Qf6 Qd1 Qd8 g4 Ke7 h4 Qe8 h5 Bg7 g6 Kf8 h6 Qe7 hxg7+ Ke8 g5 Qd8 Kf2 Ke7 Kf3 Ke6 Kf4 b5 c4 f5 c6 h5 c5 d5 c7 b4 c6 h4 Nf3 a6 Bg2 d4 Nc3 h3 Nd2 h2 Bd5+ Ke7 e6 Kd6 e7 Kc5 Ke5 b3 e8R Kb4 Re6 b2 Rf1 h1B Bc4 b1R Nd5+ Kc5 Rf3 d3 Ne7 Kb4 Rf6 Kc3 Nf1 Rh2 Ng3 Rb3 Bf4 Bd7 Kd6 Qe8 c8Q Rb1 Kc7 Nh6 g8R Rh4 g7 Rb6 g6 Nf7 Qd8 Nh8 Rgf8 Bg2 Qh1 Kc2 g8Q d2 g7 d1R Qh7 Rf1 g8Q Be6 Qg1 Nd7 R8f7 Nc5 Qd6 Nd3 Qgg6 Bh3 Qh2 Bg4 Qhg7 Bh5 Be5 Rb5 Bf4 Re5 Kb7 Qd7+ c7 Ra7+ Kb8 Qc6 c8Q Bd5 Qcf8 Re6 Qc5 Be4 Bc7 Bd5 Qd8 Be4 Qdd6 a5 a3 Bd5 Rb1 Be4 Rb6 Bd5 Ra6 Be4 Qe3 Bd5 Ba2 Bb3 Qec5+ Kd2 Bb6 Rd7 Rf8 Re5 Bc7 Rf2 Ng8 Rf7 Ne7 Bd1 Bc4 Re6 Q7h6+ Kc2 Qhf4 Rh7 Qfd4 Rg7 R8f7 Rf1 Qa1 Rg8+
4r1k1/rbB3N1/QbB2Pp1/1R1P2pN/K2n1b1R/8/b2Rn1Q1/N1RRN2q w - - 0 1 illegal: Other
2N2Bk1/6P1/nr3pb1/2rbQQrQ/2B3p1/1q1R1r2/RRRKNQP1/2Q1n3 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 fxe5 c5 axb5 g4 d4 Bh6 dxc5 Bg5 hxg5 Qb6 Nd2 Qf6 Nb1 Qd8 b4 Kf8 c4 h5 e4 d5 g6 a5 c6 a4 b6 a3 b5 a2 e6 d4 e7+ Kg7 e8Q f6 e5 d3 b7 h4 b6 h3 c5 h2 e6 Rh3 e7 Qd6 c7 Qe6+ Ne2 Rh4 c6 Qe3 Ba3 Bd7 c8R Nh6 c7 Bc6 Qc1 Rh3 Nc3 Qg5 Ne4 Qb5 Nd6 Rf3 Kd2 Na6 b8Q Nf5 b7 Qb3 Qa7 Rb8 Qf2 Nd4 Rd8 Be4 c8Q Nc2 Qf5 Bd5 Nc8 Ne1 Rg1 h1R Qb5 Rf4 e8Q Rh5 Qee5 Rf3 Bf8+ Kg8 g7 Rg5 Qbe8 Rg3 Qh5 Rf3 Na7 Rc8 b8R Rc6 Rbc8 Rc5 Rb1 a1R Rb2 Raa5 Ra2 Rcb5 Rcc2 Rb6 Nc8 Rc5 Rh1 Bf7 Rd4 Bg6 Rb4 Qd5 Rbb2 Qb3 Kd1 d2 Rh3 Rf4 Re3 Rf3 Rd3 Rg3 Ng1 Rf3 Ke2 d1B+ Kd2 Bf7 Ne2 Bd5 Rcc3 Bc2 Rc4 Rcb5 Rc5 Bb1 Rcc2 Rc5 Re3 Ba8 Ng1 Rbb5 Rcc3 Rf4 Bc4+ Rd5+ Qd3 Rf3 Ne2 Rb6 Qf4 Re6 Qe5 Rc5 Qd7 Bh7 Red3 Bd5 Rcc2 Rb6 Qdf5 Bg6
2NQN2k/bR2p1n1/1n2N2P/1KNn1br1/2n1BB2/Q2P3p/r2QRq2/1Q2Q3 w - - 0 1 illegal: No proof kernel
1n1Q2Bk/BN1Pp1N1/BK3R2/N2r1B2/1qNp2Qb/2r1P3/1rRB4/1b1nr3 w - - 0 1 illegal: No possible last move
2Q1B1qR/BQQpnb2/pb6/4nP1B/k3BKRN/4r1r1/1BPb1Q2/4N2b w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 e5 Ke3 h5 b4 h4 g4 h3 f4 e4 c6 h2 g6 a6 b6 Nf6 b5 Bd6 c7 Be5 g7 Nh7 g8B Bf6 b7 Bg7 f6 Ra7 f7+ Ke7 b6 Bf8 g5 Nc6 b8Q Bh6 b7 Na5 g6 Bg7 Nf3 Ra8 Qd5 Qf8 Ne1 Nf6 Bd3 Qd8 Nd2 Nc6 Ndf3 Rh3 Bb2 Ne5 Ra4 Rg3 f5 Qe8 Kf4 e3 Be4 e2 Nh4 Bh8 Bh7 Qg8 g7 Re3 Qc4 Kd6 Bg6 Rg3 Qb3 Kc5 Bh5 Re3 Qc3+ Kb5 f8Q Rg3 Qa7 Re3 b8B Bb7 c8Q Bd5 Qad4 Bf7 Ba7 Rg3 Q8c7 Re8 Qf3 Re6 Qfc8 Re7 Nd3 e1B Qdf2 Ba5 Ne1 Bb6 Qfc3 Re6 Q7b7 Re8 Q3c7 Re7 Rg1 h1B Ra3 Kb4 Rb3+ Ka4 Rg2 Qe8 g8B Re6 Bh7 Ng8 B7g6 Ne7 Rc3 Qg8 Re3 Rh3 Rg4 Rg3 Rf3 Rd6 Rb3 Rdd3 Rc3 Rde3 Rc5 Ba2 Be8 Bf7 Rc3 Nf3 Rc6 Bc3 Rh6 Ne5 Rh8 Bd2
N7/NkP2pR1/q2p2n1/rr1nPB1Q/2Rb3N/1K1b4/QB5r/Rr1N1N1R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 Kc3 g5 e4 g4 b4 g3 h4 d6 h6 Kd7 e6+ Kc7 e5 g2 h7 a4 e7 a3 e8N+ Kb7 h5 a2 h6 Nd7 c6+ Ka7 c7 Ngf6 b6+ Kb7 b5 Rb8 Bd3 Nc5 Qh5 Bg4 c8N Rg8 h8R Qd7 h7 Ne6 Nc7 Bf3 Na7 Rg5 Rg8 Be2 h8N Ng7 Nh3 g1R Kb3 Ra8 c4 Rc8 c5 R5g2 c6+ Kb8 b7 Ne4 Bb2 Ne6 Nf2 Nf6 Na8 Rh2 Rg7 Re8 Nd1 Nd5 Ng6 Nef4 Nh4 Ng6 Nd2 Qc8 Bf5 Bd3 Nf1 Rd8 Nb6 Kc7 b8R Qa6 Ra8 Rd7 Re8 Rd8 Na8+ Kb8 c7+ Kb7 b6 Rb8 Rc8 Be7 Rcg8 Bg5 Rh8 Be3 Rhg8 Nf8 Rg4 Ng6 Rc4 Bd4 Rg7 Qa5 Rac1 a1R Rb1 Ka6 b7 Ra4 Ra1 Qb6+ Rb4 Qc6 Rc4 Ra5 Ng3 Re1 Nf1 Nb4 Ba3 Nf8 Nc3 Bf2 Kb2 Nd5 Ka2 Rc1 Nd1 Ng6 Kb2 Rb1+ Ka2 Re8 b8Q Bd4+ Qb2 Rb8 Qbe2 R8b5 Qc2 Bf2 Qa4 Be3+ Bb2 Kb7 Qa3 Qa6 Qa4 Rc5 Kb3 Bd4 Qa2 Rcb5+
R2Q3r/1p1NbR2/2Qn1n2/P1B2Bk1/1n1Q2n1/P3pB1r/1KN1bq1Q/1B5Q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 Kf7 f4 e5 d6 h5 g6+ Kf6 d7 c5 g7 c4 g5+ Kf7 f6 Kg6 f5+ Kf7 Nf3 h4 Na3 h3 Bg2 e4 Nc2 e3 Rf1 h2 Ba3 h1N Bc5 Qb6 d8Q c3 Qd4 Ra6 g6+ Ke8 Ne5 Nf2 Nd7 Nh6 g8B Qd6 f7+ Ke7 g7 Ra7 f6+ Ke6 Bh7 Qa6 g8B Bg7 f8Q+ Nf7 Bf3 Qd6 Qe8+ Qe7 Qe2 Ne4 O-O-O Bf8 a3 Ra6 Qh2 Nd6 Bd3 Ra8 Bgh7 Nh6 f7 Ng4 Bhg6 Rh3 Bge4 Bh6 f8Q Bg5 Qfh8 Bh4 Qg6+ Qf6 Bf5+ Ke7 Qgh6 Qf8 Qh1 Kf7 Qhe5 Bd8 Qeh2 Be7 Nf6 Be6 Nd7 Bc4 Bde4 Be2 d3 Nc4 Qc6 Nd6 Rd2 Nf6 Rdd1 Na6 Rf2 Rb8 Rg1 Nb4 Rg8 Qg7 Rf1 Qg2 Rf8+ Kg7 Rf7+ Kh6 Rg1 Qf2 Rg8 Rc8 Kb1 Rc7 Ra8 Kg5 Na1 Rc8 Nb6 c2+ Kb2 c1N Qc3 Rh7 d4 Bf8 d5 Nb5 d6 Rh3 d7 Nd6 Qd4 Be7 Bb1 Rch8 d8Q Ncd3+ Kb3 Ng8 Nc2 Nf6 Nd7 Ne5 Kb2 Neg4
5BN1/P1Npq2B/2NR2N1/bQN3n1/1BrPbr2/B1Q3b1/b3k1p1/R2n3K w - - 0 1 illegal: No possible last move
N4bk1/2qB1r1R/1R6/1Rp3Kb/2P1Qqp1/2RnRB1Q/2b3Pr/1rB1N1B1 w - - 0 2 legal: proof: e4 b5 h4 g5 a4 f5 axb5 g4 exf5 e5 d4 Nc6 dxe5 Nd4 Qf3 Ne6 Qd1 Ng5 hxg5 Ba3 Nd2 Bd6 Nb1 Bf8 Kd2 Kf7 Ke3 a5 Kf4 d5 c4 h5 b4 c6 f6 d4 b6 d3 g6+ Ke6 b7 a4 b8R a3 b5 a2 b6 d2 g7 Kf7 e6+ Ke8 f7+ Ke7 b7 h4 Qc2 d1B Be2 h3 Na3 h2 Nf3 Qe8 Kg5 Rh4 Qe4 Bd7 Ne1 Qc8 f4 Rh7 f5 Qc7 f6+ Kd6 e7 Qa5+ Nb5+ Kc5 e8R Ra7 Bf3 Nh6 g8B Bc2 Nc7 Kd6+ Re5 Qc5 Na8 Be8 Rb1 a1Q Rb3 Qaa5 Rc3 Qf2 Rb5 c5 Re3 Be7 f8R Bh5 Be6 Qc7 Bd7 Ra1 Rh8 Rf7 Rh7 Bf8 Rg1 h1R Rf1 Re7 f7 Rh2 Rc3 Qd4 Rf2 Rb1 Re2 Nf5 Ree3 Ng3 Rg7 Nh1 Rh7 Nf2 Rb6+ Qc6 Rb5 Nd3 Rb6 Bg7 f8Q Qe5+ Qff5 Rf7 Rb5 Ke7 Rb6 Qee6 Qff4 Qd6 Qg3 Bf8 Qh3 Qd4 Rc8 Qd6 b8B Qd4 Be5 Qed6 Rcb8 Qc7 R8b7 Bg7 Rb5 Kf8 R7b6 Kg8 Bg3 Bf8 Bf2 Qdd6 Bg1 Qf4+
BNk5/2q1b2N/3pNnbB/1n1NP3/r1QP3q/b2pN3/1B1R1Q1R/q3B1K1 w - - 0 1 illegal: Other
5Rr1/q1QRBb1K/1pB4p/1r1N4/Q7/PNQ1q2q/2B2k1P/QQBn1bb1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 f4 c4 Nc6 cxd5 Nd4 Qa4+ Kf7 Qd1 Nf5 gxf5 Ke8 Kf2 Ke7 Kf3 g5 Ke4 c5 d4 c4 e6 Kd6 a6 h6 f6 g4 Kf5 f3 Kg6 g3 e4 f2 a7 b6 e5+ Kc7 d6+ Kc6 d5+ Kc5 e7 c3 e8B c2 e6 g2 e7 Ba6 d7 Bc8 d6 Bb7 f7 Bc8 Nh3 Nf6 Bd3 Kd4 Nd2 Ke3 Rf1 Ng4 Nf4 g1Q Nd5+ Kd4 Nb3+ Ke5 a3 Rg8+ Kh7 Qc7 d8B Rg6 Bc6 Qg2 e8Q+ Be6 d7 Ne3 Be7 Rg8 Qc8 Qh3 d8Q Bg7 f8Q Bf7 Qe1 Bf6 Qb4 Nd1 Qg7 Qb7 Qg1 Bg5 Rb1 Be3 Qc3+ Bd4 Qa1 Rg5 Qh1 Rb8 a8Q Qa7 Bg6 Rf5 Qg1 Ke4 Qdc7 Kf3 Qh8 Be3 Qhc3 Rg8 Rb2 Rf4 Bf5 Rb4 Qb1 Rb5 Qgg7 Qb7 Qa4 Qa7 Ra2 Ke2 Qca1 Kf3 Qgc3 Ke2 Rg1 f1B Rg7 Bg1 Rb2 Rd8 Rg8 Re8 Rf8 Kf2 Bd2 c1Q Nb4 Qh5 Rh8 Qc2 Bc1 Qce2 Rd2 Ke1 Rd7+ Kf2 Bc2 Qe3 Nd5 Qhh3 Qba2 Rg8 Q2b1 Rg5 Rf8 Rg8
1Q1Q1N1q/1p1KRb2/B3b3/bBbn1rB1/3R1B1p/N4b1P/3N1PB1/k1N4r w - - 0 1 illegal: Other
Q2Brk2/qn3Pn1/p1BRQRnN/Pp3N2/b6N/R5KN/3rNn2/6Rn w - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Bh6 dxe5 Bg5 hxg5 Ke7 Bf4 Kf8 Bc1 Ke8 e4 d5 a4 h5 f4 b5 Kf2 h4 c4 d4 e6 a6 g6 h3 e5 d3 f6 d2 e7 h2 a5 Qd3 f7+ Kd7 f8R Nf6 e8Q+ Kc7 e6 Qf5 e7 Rh5 c6 Kd6 c7 Nd5 g7 Bb7 c8R Qg6 g8N Qg5 c5+ Ke6 c6 Ra7 f5+ Kd6 c7 Rh3 f6 Rd3 Nc3 Qg7 Bg2 Nd7 Qe1 Ra8 Rd8 Nf4 Nce2 Nh5 Nh3 Bd5 Nh6 Bb3 Rg1 Ba4 Bc6 d1N+ Kg2 g3 c8N+ Ke6 Ra3 Nc5 Nd6 Nb7 Bg5 Nf2 Ndf5 Rd2 Nh4 Qh7 Kf3 g2 Rf7 Ng7 Kg3 Rc8 Qf8 Rb8 e8N Ra8 Rdd7 Rc8 Nd6 Re8 Rh1 g1N Ndf5 Nf3 Rg1 Ne5 Qg8 Re7 Qa8 Re8 Rd4 Ng6 Rdd3 Qg8 Rf8 Qf7 Rd6+ Ke5 Rh8 Qc7 f7 Qb6 Bd8 Qa7 Rh7 Ne6 Ne7 Kf6 Rh8 Kg7 Rh7+ Kf8 Nef5 Ng5 Rf6 Ne6 Rg7 Ne5 Rgg6 Ng7 Rd6 Re7 Rgf6 Ng6 Nef4 Re8 Qe6 Rd1 Ne2 Rd5 Nhf4 Rd2 Nh3 h1N+
N3kBq1/bnKbpn1B/2bB4/1pn2NP1/1P3NQB/1R4R1/b1BQN3/6r1 w - - 0 1 legal: proof: e4 c5 a4 g5 d4 b5 dxc5 f5 exf5 g4 a5 g3 hxg3 a6 g4 Ra7 g5 Rb7 Be2 Rb6 axb6 a5 Bc4 Qc7 Bf1 Qd8 Kd2 d5 Ke3 h5 Kd4 a4 f4 h4 g4 h3 c4 a3 b4 h2 c6 a2 Kc5 d4 b7 d3 c7 d2 Kb6 Qd3 f6 Qd7 g6 Rh5 g7 Re5 f5 Na6 b8B Qd8 c5 Qd7 c6 Nc5 Nc3 Qd5 Bd3 Qg2 Ne4 Qh3 Ne2 Qh5 Bc2 Qh8 Rb1 a1N Rg1 h1B Rb3 Bb7 c8N Bf3 c7 Bg2 f7+ Kd7 f6 Ba6 N4g3 Qh5 Nf5 Bc6 Rgg3 Nh6 g8B Bg7 f8B Qg6 f7 Nb7 Bh7 Bf6 Qe1 d1B Bg5 Qg8 Bh4 Rc5 g5 Bd4 Qc3 Be3 Qd2+ Bd4 Bd3 Bc2 Be4 Bb1 Bc2 Ba2 Na7 Ke6 c8Q+ Bd7 Bd6 Bg1 Rbc3 Nb3 Rcd3 Re5+ Kc7 N3c5 Rb3 Re3 Qd8 Rf3 Nc8 Rf1 Nb6 Be3 Na8 Rg1 Qc8 Bd4 Bg7 Bf2 f8N+ Kf7 Ne6 Be3 Nd8+ Ke8 Bf8 Nf7 Ne6+ Nbd8 Kb6 Bb7 N6f4 Bbc6 Kc7 Bf2 Qa6 Ndb7 Qb6 Nd3 Qd4 Be3 Qe4 Ba7 Qg2 Ndc5 Qh3 Qg6 Qg4 Qg8
BN1nK3/BnQb3b/N1p4B/5p2/nqP1B3/Q2r1BbP/QRQ3Rb/5k2 w - - 0 1 legal: proof: f4 e5 d4 h5 dxe5 b5 g4 b4 gxh5 b3 e6 Nf6 axb3 Bc5 b4 Ng8 b5 Bf8 Kd2 Ke7 Ke1 Kf6 e7 Ke6 e4 Nf6 e5 Ng8 Be3 a5 Bc1 Kf5 e6 Kf6 Qd6 Ra6 Qd1 Ra7 Bg2 Ra6 Qf3 Rc6 Qf1 Rc5 Qe2 Re5 fxe5+ Kf5 Kd2 Kf4 Bf1 Kf5 Qd1 Ke4 Bd3+ Kd4 Ke1 Kd5 Bf1+ Kc5 Kf2 f5 Kf3 g5 e8Q d5 c4 g4+ Kf4 d4 b4+ Kb6 h6 g3 e7 g2 Kg5 d3 Kg6 d2 Kf7 a4 e6 a3 h3 a2 h7 Qd3 Nc3 Nf6 Rb1 a1N Ne4 Qa3 Be2 Nc2 Bf3 Qb2 Ne2 g1B Nd4 Nh5 Nc6 Na3 Rh2 Qc2 Rb2 Ng7 Nc5 Nb1 Na6 Qb3 Rg2 Nc3 Qc2 d1B Bh6 Nd7 Ncb8 Rg8 h8Q Bh2 Qd8 Bf4 e8B Bg3 e7 Nc5 Bec6 N3a4 e8B Nb7 Bce4 Bd7 Qe7 Ne6 Qhc3 Bg7 Q3d2 B7e5 Qf8 Ned8+ Ke7 Be6 B8c6 Bd7 Qe2 Bh2 Qed2 Rg3 Qf2+ Nbc5 Ba8 c6 Qfd2 Ncb7 Qe2 Be6 Ke8 Bg8 Qd6 Bh7 Qdd3 Qa3 Qdb3 Bf4 Qa2 Qc3 Qed3 Qd2 Qda3 Be5 Bh5 Rd3 Bhf3 Beg3 Nc5 Kc7 b6+ Kd6 b5 Ke5 Nca6 Kd4 Q3b3 Nbc5 b7 Qb4 b6 Be2 Qba3 Bd1 Nd7 Be2 b8Q Ncb7 Qc7 Bd1 Bg7+ Ke3 Ndb8 Be2 Rg1 Kf2 Rg2+ Kf1 Bh6 Nbc5 b7 Bd1 Nd7 Be2 b8B Ncb7 Ba7 Bd1 Bd5 Be2 Bfe4 Bd1 Ndb8 Bh5+ Kd7 Bf7 Bf3 Bfg8 Ke8 Be6 Bde4 Bd7+
Q5r1/1B2r1Bn/ppN1rQB1/b3P1rn/P1BN1Bk1/2q1R3/2NKR3/6nN w - - 0 1 illegal: No possible last move
3QqB1R/4Pp2/7q/2nB1PrR/Bq2pk2/2qb1r2/n1Q1KBQ1/1NNQQ3 w - - 0 1 illegal: No possible last move
n2QR2q/2b2bN1/n3Pq1N/2rq1p2/1N2B1Bp/k5q1/1R1B1PK1/B2N1Q1B w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 g4 c4 g3 hxg3 Qe7 g4 Qf6 g5 Qd8 b4 a5 c5 a4 b6 Nc6 b7 Ra6 b5 Rb6 cxb6 Nb8 g4 Ke7 e4 d5 e6 Kd6 g6 Kc5 g5 Kb4 g7 f5 g6 h5 e5 c5 e7 d4 e8N c4 Bd2+ c3 Ra2 d3 Nf3 h4 Ng5 a3 Nf7 Be7 Rb2+ Kc4 Be2 c2 Kf1 c1Q Bg4 a2 Kg2 a1Q Qf1 Nh6 g8B Rh7 g7 Nd7 b8N Ba6 b7 Nc5 b6 Qc3 Nc6 Bd6 b8Q Bc7 b7 Qf6 Qd8 Bb5 b8B Na6 Nb4 Qb3 Be2 Ng4 Nc3 Kc5 Nd1 Bc4 Nh6 Bf7 Bf3 Kb5 Ba7 Ka4 Bd4 Ka3 Be4 Rh8 Bh7 Qd5 g8B Qb3 Ng7 Ne3+ Kg1 Nc4 Kg2 Nb6 Bg6 Na8 Bh5 Qd5 Bg4 Qdd6 Bh7 Re8 Bg8 Re6 Rh3 Qd5 Rf3 Rc6 Re3 Rc5 Re2 Bg6 Be6 Qd6 B6d5 Bf7 Rc2 Qc3 e6 Qf8 Bb7 Qb3 Ba1 Qh8 Rc4 Qbc3 Rd4 Qb3 Rd7 Qd5 Re7 Qd6 Re8 Qde5 Bg5 Qd6 Rb2 d2 Nc3 d1Q Bd2 Qb3 Nd1 Qbg3+ Kh1 Qgc3 Bef3 Qfd4 Bbe4 Qf6 Kg1 Qc4 Bh1 Qcd5 Kg2 Qg3+
1N4RN/2p3bQ/1R6/1bPk1Br1/1pRr1b1B/NQ4rP/r2Rn3/1N1Nn2K w - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 a5 gxh5 d6 b4 Kd7 bxa5 Qg5 f4 Qg2 e4 Qf3 f5 Ra6 e6+ Kc6 e5 Qb3 e7 Qe6 fxe6 Ra8 Kf2 b5 Kg2 f5 e8Q+ Bd7 a4 g5 c4 g4 h3 f4 a6 d5 a7 g3 a5 d4 c5 b4 e7 d3 a6 d2 h6 Rh7 e6 Kd5 Qb3+ Kd4 Ne2+ Ke5 Qf7 d1R e8R Rd6 e7 Rb6 Rd8 Rb7 e8N Rb6 Nec3 Rd6 Bd3 Nf6 Bf5 Ne4 Nf6 Rg7 h7 Ng5 h8N Rd4 Nd1 f3+ Kg1 Rg6 Qh7 f2+ Kg2 Nf3 Bg5 f1R Bh4 Bb5 Nd7+ Kf4 Rh2 Nc6 Rb8 Bg7 Rb6 Rg5 Nb8 Ke5 Ra3 Rf2+ Kh1 Ra2 Rc2 Ne1 Rc4 Rg2 Ra2 Kd5 Rb2 Ne5 Rd2 N5f3 Nc6 Rg8 a8R Ng1 a7 Ne2 Rc8 Rf2 a8N Rg2 Rf8 Rf2 Nb8 g2+ Kh2 g1B+ Kh1 Bh2 Rc8 Bh6 Rf8 R8g6 Rg8 Bg7 Na3 Nf4 Rdc2 Rh5 Rd6+ Ke5 Nb6 Rgg2 Rf6 Rhg5 Na4 Kd5 Rb6 Rfd2 Ra2 Ne2 Rb2 Bf4 Nac3+ Ke5 Ra2 R2g3 Ncb1 Kd5 Rac2 R2d3 Rb2 Rc3 Rd2 Rc2 Bg4 Rb2 Bf5 Ra2
1N3rN1/bN3R2/pnbR3b/1p1RQ3/1N3R1K/PP1nn1n1/2N1k1bQ/6BB w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 Nc6 cxd5 Nb8 g4 Kd7 f6 Kd6 f7 Kd7 h4 b5 f4 g6 f5 Na6 Rh2 Rb8 Rh1 Rb6 g5 Rf6 Qg4 Nb8 gxf6 g5 Qd1 g4 Be2 Bh6 Bc4 Qf8 Be2 Qg7 Bf1 Qg5 hxg5 Bf8 Kf2 Kd6 Kg3 Kc5 d4+ Kb4 g6 c5 b3 e5 g7 h5 d6 c4 d7 c3 d8N e4 d5 e3 a3+ Kc5 d6 a6 d7 c2 Qd2 e2 Nf3 e1N Rh4 Be7 f8R Nc6 f7 Bb7 f6 Ng2 Ne1 Ba8 Nc3 Na7 Nd5 Ne3 Nb4 Bc6 Bg2 Nc8 Bh1 Nb6 Qh2 Kd4 Nb7 Nh6 g8N Bc5 Bd2 c1N d8N Nd3 Rd1 Bg2 Ndc6+ Ke4 Rc8 Bf8 Nb8 Bg7 Rc5 Kd4 Ne7 Rf8 Ng8 Ke4 Rh3 Kd4 Kh4 g3 Rd5+ Ke4 Nec2 Kf3 Rf1+ Ke2 Rf4 Nhf5+ Kg5 Nd6 Kh4 Bh6 Bc3 Ne4 Bd4 Nef2 Rd6 Bc6 Rd5 g2 Rg3 Ne4 Rg6 Ng3 Bc5 Rd8 f8Q Rc8 Qg7 Rf8 Qh3 g1B f7 Bf2 Rgd6 Bg1 Qh2+ Bf2 Kh3 h4 Bd4 Nef1 Kg4 h3 Kh4 Ne3 Qf6 Kd1 Qe5 Ke2 Qg2 h2 Qg1 Rc8 f8R Re8 R8f7 Rf8 Bg2 h1B Be4 Bg2 Qh2 Bf1 Bh1 Bg2 Bb2 Be1 Bc1 Bc3 Bd2 Bb2 Be1 Bd4 Bf2 Nd7 Bg1 Ba7 Qd4 Nb6 Qf6 Nh5 Qe5 Ng3
R1NBq1BN/1NRBQ3/1BNK4/3pbb2/n3P2r/p1Pp2NQ/2k5/2n3rb w - - 0 1 illegal: Other
4K3/B4Q1N/bN3RP1/2R2B1r/n1Rp2B1/P1r4Q/k1pbR1np/3Rr1qB w - - 0 1 illegal: No proof kernel
k1n2r2/2b1qr2/PpN2QP1/1pn5/2B5/RBRbB2R/3pR1B1/1NnKQ1B1 w - - 0 1 illegal: Other
rnBR1N1r/b2NN1KP/1p4N1/1R1b1QB1/3kNRq1/5P2/3pp3/n1bR1Q2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 c4 g5 h4 e6 a4 b6 a6 g4 h6 g3 a7 g2 c6 Qe7 h5 Qd6 a5 Bb7 a6 Rh7 c7 Qe7 c8Q Rh8 h7 Qd6 c5 Qd8 c6 Ba3 c7 Qd7 h6 Qd6 Nc3 Qe7 Rh5 Qd6 Bg5+ Kf7 f6 Qe7 Ke5 d4 Ne4 d3 Nf3 g1B Bh3 d2 Qf1 Qb4 Rd1 Kg6 f7 Bd5 f8N+ Kf7 Rh4 Qc4 Rf4+ Nf6 Bg4 Rg8 h8N+ Ke7 h7 Bc1 Nhg6+ Kf7 Bh3 Rh8 Bf5 Bh2 Bh3 Qc5 Qd7+ Qe7 c8N Kg7 Qdb5 Qb4 Nce7 Kf7 Nd4 Kg7 f3 Qc4 Ndc6 Nfd7+ Kd6 Qa4 Nce5 Nc5 Ned7 Nb3 Ke5 Na1 Bf5 Kf7 Bg4+ Ke8 Kf6 e5 Kg7 Bg3 Nc3 e4 Be6 e3 Ne4 e2 Qa5 Ba2 Qf5 Bc4 Bd5 Kd8 Bb7 Kc7 Bc8 Bd5 Ng8 Kc6 N8e7+ Kb5 Nde5 Nc6 Ned7 Rb8 a8R Kc4 a7 Kd4 Bb7 Re8 Rd8 Nb8 a8R Qb4 Ra5 Qc4 Rb5 Qc8 Ndc5 Bh2 Qf7 Qg4 Bc8 Ba3 Ba6 Nd7 Rf6 Qh3 Rc8 Bb8 Rf4 Bc1 Qf5 Ba7 Rb8 Qg4 Ra8 Ne5 Ncd7 Nc6 Bb7 Rb8 Ba6 Rb7 Re8 Rb8 Bc8 Ra8 Rd8 Nb8
kr3N1q/2Q1p2P/3BbBRp/2nrp2B/3b4/n1P5/1B2BNRN/KQ1N1n2 w - - 0 1 illegal: Other
1QQB4/B2P1p1r/qB2p2r/RRb2B1P/Np3n2/2N1N1N1/3Kb2k/N2n2r1 w - - 0 1 illegal: No proof kernel
1B3N1Q/rnpNR1qB/3R4/1b4b1/N3B1kB/1BPn1rp1/1P2N2p/3KQ1n1 w - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 e5 gxf5 g4 d4 Bg7 dxe5 Qg5 hxg5 Bf8 f4 Ke7 e4 a5 g6 d5 e6 Kf6 e7 h5 e8Q h4 e5+ Kg7 b6 Kh6 g7 d4 f6 g3 f7 d3 e6 a4 b7 h3 e7 a3 Nc3 a2 Nge2 Kh5 f5 h2 f6 Nh6 g8B Ng4 Na4 Bd7 c3 Ra7 Bh7 Nf2 Bg5 Kg4 Bg2 Bb5 Bge4 Nc6 b8B Nd4 Bh4 Bh6 f8N Bg5 Nd7 Rf8 Qc1 Rf7 Qh8 Rf8 Rb1 a1N e8B Nab3 Bf7 Nc5 Bb3 Nb7 Qe3 Rf7 Rd1 Rf8 Kd2 Nf3+ Kc1 Ng1 f7 d2+ Kc2 Rc8 f8N Nd3 Re1 Re8 Kd1 Re7 Qf2 Rf7 Qf1 Nh3 Rg1 Rf3 Rg2 Ng1 Rf2 Re3 Rf6 Rf3 Rd6 Rf2 Bg2 Be3 Nd4 Ne5 Kc2 Bg5 Re3 Rf5 Ne2 Rf7 Bgd5 Rf3 Qc1 Nc4 Re7 Ne5 Bde4 d1Q+ Kb1 Qd4 Kc2 Nd3 Qe1 Qe5 Kd1 Qg7
R2bR3/P1p1B3/1krp4/Rp2q1N1/1Q4K1/1nN2B1N/b1n1Pn2/rRN1R1Q1 w - - 0 1 illegal: No possible last move, all moves rejected
NRr5/QQ4nN/2R1bBBk/p1P2Qrb/p4q1q/3pQ1Nn/P7/2N2N1K w - - 0 1 illegal: Other
rq3r1N/2NRQ2p/1bnPnN2/1R3N2/1RK2Bpp/k4P2/2R3Nq/1b3Q1B w - - 0 1 illegal: Other
8/R2N1pP1/3B1N1K/b1qQp1Rr/3rN1Q1/B5Pp/b1n2N2/BqnBk1B1 w - - 0 1 illegal: No possible last move
r2Q1QKB/4pP1q/5P2/7q/1BNNb1kn/NNn3r1/1pNbR1p1/1B2R1B1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 g5 Kg4 b5 f4 c5 h4 b4 d4 c4 a4 c3 a6 c2 a7 b3 f6 b2 Kf5 g4 Kg6 g3 Kf7 g2 f5 Nc6 d6 Rh6 d5 Rh8 a5 Nb4 a6 Bg7 h6 Na2 h7 Nc3 h5 Bh6 Bd3 Na2 Na3 Bg7 h6 Rb8 a8N Bf8 a7 Rb4 Be3 c1Q Bb1 Nc3 Nf3 Qc7 Bg1 Bb7 Nd2 Rb6 Nb3 Rb5 Nb6+ Kd8 a8Q+ Qc8 d7 Qc2 Nbc4 Kc7 d8N Kd7 d6 Qe2 Ne6 Rc5 Ned4 Qe5 Ndc2 Kd8 d7 Kc7 d8N Be4 Nc6 Ra5 Qf1 Kd7 N6d4 Ra7 Qb8 Ra8 Rh3 Qcc5 Re3 Qh2 Qd3 Bg7 Qf8 Qb5 Re2 Qa5 N4e3 Kd6 Qd1 Ke5 Nec4+ Kf4 Qd3 Qc5 Qd1 Kg4 Qd2 Na2 Qa5 Nc3 Qad8 Nd5 Ba2 Qh1 Rae1 Nc3 Bb1 Qb5 Kg6 Qh3 f7 Qh2 Qde8 Be5 Qd8 Bf4 Kg7 Bd2 Qc8 Nf6 Qfd8 Rf8 h8B Nd7 h7 Ne5 Qb8 Re8 Qbc8 Ng6 Qb8 Nf8 Kg8 Qa5 Bg7 Qh3 f6 Qah5 h8B Q3h4 Bh6 Ng6+ Kg7 Qh3 Bf4 Qd3 Bd6 Nh4 Bb4 Rf8 Qa5 Rc8 Qd8 Rc5 Qf8 Rf5 Qfd8 Rf3 Kg8 Rg3 Qf8 Qf3 Qd6 Qff5 Qdd8 Qfh7#
2n3QN/2R3bB/K1B1n3/1BB4p/P3bN1P/N1kB2p1/R2qq2p/r1N1Q2b w - - 0 1 illegal: Other
5NN1/2p2B2/2PrR1Rb/qnR2p2/BqB3QP/1Qq3Rr/p4R2/k3B1Kb w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 f4 Ke7 e4 Qe8 e6 Kf6 e7 Ke6 e5 Qd8 Kf2 Nc6 Ke1 Nd4 f5+ Kd5 Bd3 Kc5 Bf1 Ne6 fxe6 Kb4 Ke2 Kc4 Ke1+ Kc5 Kf2 Kb4 e8B d5 h4 g5 c4 f5 e7 a5 h6 d4 b6 g4 e6 a4 h7 a3 c5 a2 b7 d3 b8R+ Kc4 b4 Ra7 b5 Bb7 b6 Bd5 b7 Bh6 Nh3 g3+ Kg1 g2 Ng5 Ra4 Rh3 Qd7 Bf7 Be4 e8B Nf6 e7+ Bd5 Bd2 Qd6 Ne6 Qc6 Rg3 Ng8 Qg4+ Kb3 Be1 Kb2 Nd2 Qa6 Rc1 Nf6 Ne4 d2 Nf8 d1Q Bc4 Ra3 Ba4 Qd2 e8R Qb4 c6 Qaa5 Re6 Ne8 Nf6 Nd6 Ng8 Nb5 Rd8 Be4 b8Q Qc3 Rc2+ Ka1 Rd5 Bf3 Rc5 Qcb4 Ne7 Rg8 h8R Rg6 Rf2 Re3 Ree5 Rd6 Rg8 Ra3 Rg6 Be4 Kh2 Bd5 Ree6 g1Q+ Kh3 Rc3 Ng8 Bh1 Qb6 Qf1+ Kh2 Qd3 Kg1 Qd4 Rg2 Rh3 Rg3 Qbc3 Qb8 Na7 Qb3 Nb5 Rg5 Qcb4 Rgg6 Qdc3
R7/2q2b2/2p1K1b1/p1R1n1pk/PBrR4/RQQ1PR2/1QB2q2/1NNrbQ2 w - - 0 1 legal: proof: g4 b5 d4 g5 c4 f5 cxb5 e5 gxf5 Bb7 dxe5 Nc6 h4 Nce7 h5 Ng6 hxg6 Bc8 Kd2 d5 Ke3 h5 Kd4 a5 b4 h4 a4 h3 f4 c6 b6 h2 e6 Nf6 Ke5 d4 b7 d3 b8R d2 e3 Bg7 b5 Ra7 b6 Rf7 e7 Rff8 b7 Rf7 Ra8 Nd5+ f6 Qd7 b8Q Rhf8 f5 Bh8 g7 Nb4 g8R Qd8 Ba3 Nc2 Bd3 Qb6 Ne2 Nd4 Qb3 d1B Bb4 Bc2 Rc1 h1Q Ra3 Qf1 Be4 Bd3 Rc5 Qf2 Nc1 Nf3+ Kd6 Ne5 Rg6 Be2 Bc2 Bd3 Rh6 Rg7 Rh4 Rh7 Rhc4 Rh1 Rd4 Rd1 Qb2 Kf7 e8Q+ Kg8 f7+ Kh7 f6 Kh6 Qe6 Kh5 Qc3 Bd7 Qeb3 Be8 Ke6 Bg6 Qb7 Bg7 Qbb2 Rh8 f8Q Qc7 f7 Rh6 Qb5 Rh7 Qg8 Bh8 f8R Rd7 Rd2 Rd4 Rf3 Rc4 Rd4 Nd7 Rdf4 Re4+ Qe5 Re1 Qf1 Rd1 Ke7 Bg7 Qgb3 Rc4 Ke6 Bh8 Qd5 Bc3 Qdd3 Ne5 Rd4 Be1 Qdc3 Bef7+
1N1B2N1/RQ2B1R1/2B1Q1n1/QBq1qQ2/2p1Pn2/p3B2r/kbPK2p1/b4b2 w - - 0 1 illegal: No proof kernel
2RrB2N/n1p2K1R/Np1BQ2q/bR6/1PQR2BP/1RrpB2n/5qk1/2n5 w - - 0 1 illegal: No proof kernel
3R2r1/nqnp2bq/N1Q5/4k3/BRP2pB1/Q1p2n1K/2BPbB1N/1BQ4Q w - - 0 1 illegal: No proof kernel
n1N1R2R/Kn1nN2Q/7B/q1r1pR2/2B1k2B/QpR1p1RP/1B2Pn2/6rb w - - 0 1 illegal: Other
NNQ5/rRp3Pk/b2p3p/1BQ3B1/r2N1N1P/1Rr1q1n1/n1N1RpR1/1K6 w - - 0 1 legal: proof: d4 e5 dxe5 b5 f4 Be7 a4 Bc5 axb5 Bf8 c4 g5 fxg5 Bc5 b4 Bb6 c5 Nh6 cxb6 Ng8 Kd2 Kf8 Kc2 Kg7 h4 f5 e4 a5 g4 d6 e6 a4 e7 f4 e8R a3 b7 a2 e5 f3 b6 h6 b5 f2 e6 Ra6 g6 Qg5 e7 Nc6 b8N Bb7 Nh3 Nd8 Qd5 Ra4 Nc6 Rd4 Nf4 Re4 Qc5 Ba6 b7 Qe5 b8N Nb7 b6 Re3 g5 Rd3 Nd7 Bb5 Rh3 Nf6 Nd4 Ng8 Na3 Rh7 Rb1 Nd8 b7 a1R b8N Kh8 Nb6 Bc6 Na8 Rf7 g7+ Kh7 Rb7 Nf6 g8R Qe3 Rg3 Ra2+ Kb1 Rc3 Nac2 Nh5 Bb5 Ra7 Rg2 Bd5 Rgf8 Nc6 g6+ Kg7 Rh8 Ng3 Bd2 Rf6 Rhf8 Bg8 Rf7+ Kh8 g7+ Kh7 Rff8 Rg6 Rf5 Bc4 Re5 Qf3 Re2 Qe3 Rd8 Rf6 e8Q Nb4 Qd7 Rg6 Qc8 Rg4 Re8 Na2 Re5 Qf3 R5e3 Bd3 Bc6 Ba6 Bb5 Rc4 Rb3 Rc3 Nh5 Re4 Bg5 Qd3 Nf4 Qe3 Ndc6 Rb4 N6d4 Ra4
N3Q2R/1pn3p1/1BR1R3/1Q3p2/RP2rrB1/q2RN2p/1k3P1N/bq1nNK2 w - - 0 2 illegal: No proof kernel
B1k3KN/pr5Q/Pnb3p1/1n4B1/RR1rpN2/2Q1P1QN/1p2N1QN/2n2b2 w - - 1 2 legal: proof: g4 c5 b4 f5 bxc5 Qb6 gxf5 Qd8 c4 Qb6 d4 Qd6 c6 Qc7 c5 Qd8 c7 Na6 c6 Nb8 h4 g6 h5 Bg7 h6 d6 hxg7 Qd7 Qd3 Qe6 Qd2 Qc4 Qd1 Qc5 dxc5 Be6 Nh3 Bd7 Ng1 Bc8 Kd2 h5 Kd3 b5 Ke4 e5 Kd5 h4 a4 b4 f4 b3 f6 b2 f5 h3 a5 h2 f7+ Ke7 f8N Ba6 c8N+ Kd8 Ke6 d5 Kf7 d4 f6 d3 Nd7 d2 Bg2 Rh4 Nc3 Rh5 Qc2 d1N Nh3 Bb5 a6 Bd3 Bg5 Ne3 Nd6 Nf5 e3 Rh7 Ne2 Nh4 Ra4 Be4 Rf1 h1B Rf4 Bf5 Rfb4 Rh6 Qd2 Ne7 g8Q+ Kc7 Qh7 Nd5 Kg8 Be4 f7 Rh5 f8N Nc3 Nf7 Rh6 Nh8 Nf5 Nf6+ Kc8 c7 Ng3 Ng4 Bc6 Nh2 Nb5 Ne6 Rh4 N6f4 Nd7 Qe1 Rb8 Bf3 Nf5 Qg3 Bg2 Be4 Nb6 Bd5 Be8 Ba8 Bf1 Qg2 Rb7 Qg3 Nfd6 Qg2 Nf7 Qg3 Kd7 c6+ Kd6 Ng2 Nc3 c8Q Nb5 c7 Rd4 Ngf4 e4 Qcg4 Ne5 c8Q Nd3 Q3h4 Nc1 Qg2 Bd7 Qc3 Bc6 Q7h5 Kc7 Qh7+ Kb8 Qhg3 Kc8
3Q1r2/5QR1/B1BN1npQ/1BpB2np/Q4p1b/P2NK2r/2P4B/kbR4n w - - 0 1 illegal: No possible last move
kN2N1RB/2p2B1B/1p1r1P1b/NQn5/2p3K1/r1Q1r3/bPNp1n2/4BRN1 w - - 0 1 illegal: Other
3k1nq1/r5RB/2KB1NrQ/1p2pq2/r1QNb1Q1/1P2P2Q/2B1R2b/1b3BBn w - - 0 1 illegal: No proof kernel
b2N2Bn/kbR3r1/b1p3r1/3Q4/BKP1RB1N/Q2Bn1Qp/3b3P/1B2qb1Q w - - 0 1 illegal: No possible last move
1k1B1n1N/1B3KN1/B1pN2N1/1B1R3r/R1Pq3p/n1Q1r1rP/2rb2n1/3Q1bB1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 Kf2 h5 Kf3 d5 Kf4 Kd7 Kf5 a5 b4 h4 g4 a4 e4 d4 h3 a3 e6+ Kd6 g6 a2 g5 f6 e5+ Ke7 b6 d3 b7 d2 b5 Rh5 g7 Ra3 Kg6 f5 b6 f4 Ne2 f3 Nbc3 f2 Nf4 Ra5 Ne4 Ke8 e7 Kd7 e8B+ Ke7 e6 Nh6 g8B Rd5 Beb5 Na6 b8B Bb7 Nd6 Rc5 Ba7 Bf3 b7 Be2 b8Q Ng4 Qc8 Nb8 Bg2 f1N Bb7 Nd7 c3 Re5 Bg1 Nfe3 Ba3 Bf1 Bb4 Rh7 Ba5 Ng2 Bf7 Bh6 Be8 Re4 B5a6 Re3 c4 Nb8 Beb5 c6 Rh2 Qb6 Qh8 Nd7 Qc3 Kd8 e7+ Kc7 e8N+ Kb8 Ng7 Nf8+ Kf7 Qd4 g6 Bg5 Rh1 Rh5 Bd8 Rg3 Rh2 N4e3 Rh1 Nc2 Rh2 Nge1 Re2 Bh6 Re5 Ng2 Rd5 Bg5 Nge6 Na3 g7 Bh6 g8N Bg5 Ng6 Be3 Qdb3 d1R N8e7 Re1 Nh8 Bd2 Ng7 Rc1 Neg6 Rc2 Qb1 Re3 Qd1 Rg3 Rb1 a1R Rb4 Rb1 Ra4 Rb3 Qb2 Rbd3 Qc3 Rde3
Qbr5/3bB3/N4nk1/rQ3pr1/pNBR4/PR2RP2/nQ2q1r1/K1R1bRQ1 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Be7 gxh5 Bf8 Kd2 g5 Kc3 a5 Kb2 d5 e4 b5 h4 f5 c4 Kf7 f3 b4 a3 a4 h6 b3 c6 g4 c5 g3 h7 g2 h5 d4 c7 d3 h6 d2 e6+ Kf6 e7 Ra7 e8Q Ba6 c8R Qd6 c6 Be7 e5+ Kg5 c7 Be2 e6 Nf6 Rh4 Ra6 Rd4 Ng4 Nc3 Rc6 Nd5 Ra6 Nh3+ Kh4 Ng5 g1B Ne4 Bh2 Qb5 Kh5 Nb4 Nc6 Nc5 Nf6 Rb8 Qe5 c8R Ra5 Nca6 Kg6 Rb7 Bd6 e7 Bb8 e8R Bg3 Ree7 Rf8 h8Q Be1 h7 Rd8 Kb1 b2 Re8 Qh2 Re3 Qe5 Ka2 b1R Qf8 Rb3 h8Q Qe4 Rb1 Rb2+ Ka1 Qe7 Rcc7 Rc8 Qh2 Bd3 Qb3 d1R Qg1+ Rg2 Qb2 Be4 Bc4 Rg5 Qd8 Rd2 Qdd5 Rdg2 Rb6 Nd8 Qa8 Bc6 Bd2 Bd7 Bc3 Bf2 Rf1 Nc6 Be1 Bh4 Bg3 Qe4 Bd6 Be1 Be7 Qd3 Rbb7 Qe2 Be6 Ne5 Rc1 Nd3 Bg8 Kg7 Bc4 Kg6 Nc6 Nb4 Rb6 Na2 Ncb4 Qd1 Qc5 Bf4 Nd3 Rc6 Rb3 Rc8 Ndb4 Bb8 Qb5 Qe2
2nbQBk1/2bpB3/b7/4Q2r/1p3RB1/1P3K2/2bP1QBR/rnNBqNrQ w - - 0 1 illegal: No proof kernel
2RK2N1/4bkpN/1p3NNR/1nN1q1PQ/1Pnbb3/6BR/Q1q3R1/1rb3rB w - - 0 1 illegal: No proof kernel
3bk3/1BbRn2n/1p2p3/Nq1R2p1/Q3QN2/BBnR1RP1/4P1Br/1r2R1Kb w - - 0 1 illegal: No proof kernel
1N2Q1q1/rKn1p3/4P1b1/3r1N2/B1kNQnpQ/4BpP1/1R2qQRb/Nn3N2 w - - 0 1 illegal: No proof kernel
qb1qQ1R1/1n1prN2/1b1rB1p1/1BNb2P1/2Qp4/1RKP1k1B/2R3R1/B4Bn1 w - - 0 1 illegal: Other
N1R2R2/1k1BrK2/3Bn1QR/3bp2R/n2bPp2/BB2r1rp/5P2/2QRr1Nq w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 g4 Kd7 d4 h5 Kd2 a5 Kd3 c5 Ke4 Kc7 Ke5 f5 e4 c4 b4 h4 b6+ Kb7 g6 f4 g5 e6 g7 a4 b5 a3 d6 a2 d7 c3 g6 c2 d5 Qe8 d8R Nf6 g8B Qe7 d6 Ra5 g7 Ra8 d7 Ra4 Nd2 Nh7 Bh3 Qe8 Ba3 c1R Nc4 Rc3 Qc1 Ng5 Kf6 Ka8 b7+ Ka7 Rh2 e5 Nb6 Bc5 Bb3 Re3 g8Q Qh5 Qg6 Re8 Na8 Na6 b8B+ Kb7 b6 Ne6 Bd6 Bd4 Kf7 Nac5 Rb1 a1R Rb2 Kc6 b7 Qh8 b8R Bb7 Bg4 Rc4 Rd2 Na4 Rd1 Rcc3 Bf5 Qh5 Rh3 Qf3 Bg4 Qh1 Rbc8+ Kb5 Bf5 Ka6 Rc6+ Ka7 Rdc8 Rb1 Rb6 Bd5 d8R Rg3 Rbc6 Kb7 Rh2 Rh8 Rf8 Rce3 Rg2 h3 Ra6 Rgf3 Rg5 Rg3 Rh5 Rh7+ Kf6 Re7 Bg4 Re8 Bf5 Nec5 Bd7 Ne6 Rac6 Rb2 Kf7 Rbe2 Ra6 Re1 Qg8 Bc4 Bb8 Nec5+ Re6 Bd5 Bd6 Bc6 Rg6 Ne6 Rgh6 Bd5 Qg6 Re7+
1Q1nb1bR/2N2bp1/qRN1R1Np/1n4Bk/3b3p/3r3Q/4R1PP/K2NRB1r w - - 0 1 illegal: Other
n7/k2r1RqQ/1NQRBn2/3B1r1p/p1pQrB1N/Q1PpB1b1/3P2bK/Q7 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 b4 d5 f4 Kd7 Kf2 h5 Kg3 a5 b6 Kc6 c3 Kb7 g6 c5 g7 e5 f6 e4 f5 d4 b5 d3 f7 e3 f6 e2 Ba3 e1R Nf3 Rh6 Nh4 Nc6 Kh2 Ne5 g4 Ne7 g8Q Bg7 f8Q Nc4 g5 Bd7 g6 Ne3 f7 Be8 Qh7 Nc6 Bh3 Rf1 Be6 Qd4 Qfh8 Nb4 f8Q Rf4 Rf1 Rg4 Rf7+ Kb8 b7 Bf6 g7 Rg3 g8B Ka7 Bd5 Rg4 b8B+ Kb6 Qc1 Re4 Bf4 Na6 Bb4 Rc8 Na3 Rc7 Nc4+ Ka7 Nb6 c4 Bc5 Rd7 Ra4 Be5 Qa1 Bd6 Qf6 Be5 Qc6 Rf6 Be6 Bc7 Qfd6 Qe5 Qd4 Rf5 Rb4 a4 Rb1 Qf6 Rg1 Be5 Rg6 Qg7 Bd5 Rc7 Rd6 Ng4+ Kh3 Bd7 Bh6 Rff4 Re7 Rc8 Na8+ Kb8 b6 Rd8 b7 Re8 Qf2 Nf6+ Kh2 Bf5 Bge6 Bh3 Rf7 Nc7 Qfg1 Rh8 Qgc1 Bf1 Qca3 Bg2 Be3 Rd8 Qcc5 Rg8 Qd4 Rd8 Nb6 Ka7 b8Q+ Ka6 Qc8+ Ka7 Q1b2 Rd7 Qba1 Na8 Qc6 Rf5+ Kg1 Bg3 Bhf4 Be1 Kh2 Bg3+
5B1b/r2K1Q1P/1rB1nBN1/k4qP1/1NR3Q1/rQ2n1R1/q3N2r/B5Q1 w - - 0 1 legal: proof: e4 f5 exf5 d5 b4 h5 a4 a5 bxa5 g5 c4 b5 cxd5 h4 axb5 h3 f6 g4 f3 Bf5 gxh3 g3 h4 Qd7 h5 Bg4 fxg4 Qd8 Ke2 Kd7 Kd3 e5 Kc4 c5 d4 Kc7 h4 e4 g5 g2 b6+ Kb7 Kb5 c4 d6 e3 a6+ Kc8 a7 Kb7 f7 e2 h6 e1R d5 c3 h7 c2 d7 Bb4 f8B Ba5 h5 Re8 h6 Bb4 d6 Re2 Nc3 Qe8 Rh4 Qf7 d8Q Nd7 Bb2 c1R Qe7 Re6 Ra3 Bc5 Ba1 Qh5 Qf7 Re3 Rc4 Rf3 Nge2 g1Q Na2 Bb4 Bg2 Qf2 Qg1 Bc3 Nb4 Ne7 Rb3 Nc5 d7 Bd4 d8B Rb1 Bh1 Rg8 h8N Qhh2 Ng6 Ne6 h7 Bh8 Re3 Rg7 Ra3 Qhg2 Re3 Rh3 Rg3 Qe4 Bg2 Rh2 Bh1 Nd4+ Kc5 Qef3 Kd6 Ne6 Kd7 Nf5 Bdf6 Rb3 Nd3 Ka6 b7 Rb8 Nb4+ Ka5 a8Q+ Qa7 Bg2 Ne3 Bh1 Qf5 Bc6 Qa6 Qa7 Ra3 Qd4 Qa7 Qg4 Qa6 Re4 Qc4 Rf4 Qa2 Rc4 Ra8 b8Q Ra6 Qbf4 Rb6 Qff3 Ng2 Qd3 Ne3 Qb3 Rg8 B8e7 Ra8 Bf8 Ra7+
1N3q1R/P2rk1rR/5q2/RB2q2n/QrPBq1QN/2N2N2/3R4/Q1K4n w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 a4 b6 a6 e6 a5 Be7 a7 Bg5 Bxg5 Kf7 a6 Bb7 Bc1 Bf3 Qxf3 Ke7 Qd1 Ke8 Kd2 d5 f4 g5 h4 d4 f6 b5 c6 b4 c7 d3 c8R g4 h6 b3 h5 e5 f5 b2 f7+ Kd7 f8N+ Ke7 h7 g3 h6 g2 Qg4 e4 Ra5 Qe8 Nd7 Nc6 Nb8 Qf8 Rd8 Ne5 Nc3 b1Q Nf3 g1R Bb2 Nf6 Rh4 Rg8 h8R Nh5 h7 Rg7 Ba1 Qb7 Kc1 e3 Rd6 e2 f6+ Kf7 Rh2 Qe4 Rh3 Ke8 f7+ Ke7 Rd4 Qd8 f8N e1Q+ Nd1 Qh4 Nc3 Qf6 Rh1 Rg2 Rh2 Rd2 Ng6+ Kf7 Be2 Qf8 Ngh4 Ke7 Rdd5 Ng6 Bf1 Ng3 Rh5 Nf4 Bb2 Re2 Rf2 Re3 Rd2 Nh1 Na4 Q6f7 Rad5 Qf6 Rd1 Qef5 Rg8 Ng3 h8Q Ne6 Nd7 Q6g5 Rh7 Rb8 a8Q d2+ Kb1 Rb4 Nb8 Rf7 Qc6 Rc3 a7 Ng7 Ra5 Rd3 c3 N7h5 Qhd4 Q8c8 Rgh8 Qe5 Qg1 Qf8 Qce4 Rd7 Bb5 Rg7 c4 Qff5 Qc2 Qf8 Qb3 Qh6 Bd4 Qc6 Nc3 Qcf6 Kc2 Nh1 Qa4 Qd5 Ra1 Qde5 Ra2 Qc5 Qa1 Qce5 Kd3 d1Q+ Rd2 Qde1 Kc2 Q1e3 Kc1 Q3e4
7R/1n2BPQR/4N3/q1nk1NP1/1b1r1B2/R1p2KNQ/2B1N2r/2qB2r1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 Nh6 c4 Ng8 cxd5 Bb7 Bc4 Ba6 Bf1 Bc8 hxg5 a5 bxa6 Nh6 b4 Ng8 b5 Qd7 Bd3 Qd6 Bf1 Qd8 b6 Nh6 b7 Nc6 b8B Bb7 axb7 Ng8 Ke2 Kf7 f4 h5 d4 e5 g4 e4 f6 e3 g6+ Ke8 g5 Kd7 d6 Ke6 d7 h4 f7 h3 f5+ Kd5 f6 h2 g7 Rh4 Qd3 Ra5 Kf3 e2 Ba3 e1Q Ne2 Qe7 d8R+ Qd6 Nd2 Be7 f8Q Na7 f7 c5 Ne4 c4 N4g3 Kc6 d5+ Kb6 Qc3 Nf6 g8B Rg4 Qg7 Qb4 d6 Kc5 d7 Nd5 Bf4 Nc7 b8N Kd5 Bh7 Na6 Nc6 Qc1 Bc2 Ra4 Rh8 Nc8 d8N Nc5 Ncd4 Nd6 Ndf5 Ndb7 Ne6 Qa5 Bb4 Bf8 Ra3 Be7 Qe3 c3 Bh3 Rh4 Bg4 Bd6 Qg1 Rh7 Qf1 Be7 Qh3 Bf8 Rf1 h1R Rf2 Rg1 Rh2 Nb3 Be7 N3c5 Qf1 Rh6 Rh4 Rd4 Qh3 Rg6 R4h7 Rh6 Qg2 Rhh1 Qh3 Rh2 Bd8 Rb4 N2d4 Qa1 Ke3 Na4 Bgd1 Qc1+ Kf3 Be7 Nde2 Rd4 Bfc7 Bf8 Bf4 Bb4 Be7 Nac5
1B1r2NN/1RQ1Pr2/NqqQ1n1R/8/2R1r1k1/8/BPRKNrpn/1Q6 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 b4 c4 b3 cxd5 Bc5 a5 Bb6 axb6 Nd7 Qxb3 Rh7 b7 Nb8 Qd1 Bh3 Nxh3 Rh6 Ng1 Rh8 e4 Ke7 d4 a5 h4 g5 h6 f5 d6+ Ke6 d5+ Kd7 h5 c5 h7 f4 h6 f3 e6+ Ke8 d7+ Ke7 d6+ Kf6 e7 a4 e8N+ Ke5 Rh4 c4 Nc3 a3 Nc7 g4 Kd2 Kf4 e5 a2 e6 f2 e7 Kg5 N3d5 g3 Ne2 g2 Nf6 Ra7 Na6 Qf8 d8Q Nc6 b8R Ne5 d7 Ng4 Qc7 Nh2 Rb7 Qb8 d8Q Kf5 Rb1 a1R Qdd6 Ra8 Rd4 Ra4 Ra1 Qd8 Ra3 Rb8 Rc3 Rc8 Rc2 c3+ Kd3 Ra8 Rc4 Qb8 Bd2 Qa7 Qb1 Rf8 Bg5 Rf7 Be3 Qb8 Ba7 Qd8 Bb8 Rb4 Ne4 Nf6 Ke3 Rg8 h8N Kg4 h7 Re8 Ng6 Rg8 h8R Ra4 Rh6 Rh8 Rc1 c2 Kd2 Rhf8 Nh8 Rb4 Qc5 Qb6 Qcc7 Rd8 Re1 c1R Rd1 Rc3 Rc1 Rf3 R1c2 Rf4 N2g3 Rf3 Be2 f1Q Bd1 Ng8 Ne2 Rf2 Nf6+ Kf3 Rc6 Re4 R2c4 Qg1 Bb3 Qh1 R6c5 Qc6 Ba2 Qg1 Nh5 Kg4 Rc2 Nf6 R5c4 Nd5 Nf6+ Kg5 Ng8 Kg4 Kd3 Nf6 Kd2 Rff4 Qc1 Qgb6 Qb1 Rf2
4n3/nkB1RQN1/p7/2P1RqR1/bNbNr2N/1Q1p3B/4R1KP/1B4r1 w - - 0 1 legal: proof: f4 c5 d4 e5 dxc5 b5 fxe5 b4 g4 b3 axb3 Na6 b4 Nc7 b5 Na6 b6 Nb8 b7 Qc7 Ra6 Qb6 Ra1 Qd8 b4 h5 gxh5 a6 c6 g6 hxg6 Bc5 b5 Ba7 b6 Nh6 bxa7 Ng8 Kf2 f5 e4 d5 c4 d4 c7 Kd7 c5 Kc6 e6 f4 e5 f3 g7 Nf6 g8R Ne8 e7 Rh5 e6 Rf5 Nd2 Rf8 Bh3 Rf6 Ra2 Nd6 e8N Rf7 e7 Rg7 Nb3 Rg3 Ng7 Nf7 e8R Nd6 Rae2 Nf5 R8e5 Rg4 Bf4 Bd7 c8Q+ Qc7 Qf8 Rg5 Qf7 Qd6 Rge8 Qe6 Re7 Kc7 Qb1 Nc6 b8N Kb7 Qb2 Na5 Nc6 Nd6 Nb4 Re8 Qb1 Nc6 a8B+ Kb8 Bb7 Na7 Be4 Ba4 Qd1 Qf6 Bb1 Qf5 Kf1 f2 Nf3 Rg4 Nh4 Rg8 Bg3 Re4 Rg1 Ne8 Bf4 Kc8 Rg5 Kb8 Kg2 f1B+ Kh1 d3 Nd4 Bg2+ Kg1 Bf3 Qdb3 Bh5 Qf6 Bf7 Kg2 Bc4 Qf7 Kc8 R5e6 Rh8 Bc7 Kb7 Ng6 Rhh4 Re5 Rhf4 Nh4 Rf1 Ng6 Rh1 Nh4 Rg1+
Q7/1bnp1Pr1/P3RqN1/3BnQ2/BBR1rb1p/B3k2N/NN4K1/5R2 w - - 0 1 legal: proof: f4 g5 b4 b5 e4 a5 bxa5 e5 fxe5 f5 exf5 c5 h4 b4 hxg5 b3 d4 Ba6 dxc5 Kf7 axb3 Ke8 b4 Bb7 b5 Bc8 Kf2 Kf7 c4 h5 g4 h4 c6 Rh7 e6+ Ke7 a6 Rh6 b6 Bb7 c7 Bd5 c8Q Kd6 b7 Ke5 c5 Ke4 f6 Qe8 g6 Rh7 e7 Ba2 c6 Bb3 g5 Rh8 c7 Nh6 g7 Nc6 b8B Nd4 g8B Nc2 g6 Be6 g7 Bb3 Qf3+ Kd4 Bd5 Nf7 g8N Ba2 Qf5 Nh6 f7 Qd8 e8N Bg7 Bb5 Bc4 Kg2 Ra7 Nh3 Qf6 Ba4 Qe5 Ne7 Rg8 Nd6 Rb7 Ba3 Qf6 Nc3 Nb4 Raf1 Ke3 Ng6 Ng4 Na2 Bh6 Ba7+ Rb6 Qa8 Rg7 c8R Bf4 Re8+ Ne5 Re6 Bb5 Rh2 Bc6 Nc4+ Ke2 Nb2 Ke3 Bb8 Bb7 Bd6 Rc6 Rhh1 Rc4 Rc1 Re4 Rhf1 Bc6 Rc4 Bb7 Bdc6 Nd5 Bdb4 Nc7 Bd5 Bg5 Rd4 Bh6 Rc4 Bf4
Q1b1b1b1/7k/P1B5/1R1Kp1R1/1rQRN2b/p4P1N/n3Q1q1/2B1N1NR w - - 0 1 illegal: No possible last move
3NRq1q/1pNp2Q1/pqn5/1Q1N1Q1B/4P2Q/Pr5R/q1N2B1R/1k2K3 w - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 c4 e6 c3 e5 a6 f3 Ne7 Na3 Ng8 Nc4 Nc6 Nb6 Na7 bxc3 Rb8 c4 Ra8 c5 Rb8 Nxc8 Ra8 Nb6 Rc8 Bb2 Rc7 Bc1 Rc6 g3 f5 Bb2 f4 Bh3 Rd6 Rb1 Be7 Ra1 Rd4 Bf1 Bg5 Bc1 Re4+ fxe4 f3 Bd3 Nb5 Bf1 Nc7 h3 Nd5 h4 Nf4 gxf4 Bf6 Bd3 g5 Be2 g4 Bf1 Bg5 hxg5 Qc7 Rh6 Qc8 Rh1 Qd8 c4 Ke7 g6 h5 f5 h4 f6+ Kf8 f7 Kg7 f8N h3 a3 h2 e7 g3 e8R g2 c6 Ne7 e6 Kf6 g7 Ke5 g8Q Ng6 e7 Nh4 c7 Rh5 c8Q Rh6 c5 Qc7 c6 Re6 Ne2 g1Q Qg7+ Rf6 Ne6 Qb8 c7 Ng6 Qd8 Qd4 c8Q Nh8 Ra2 Qbd6 Qc5+ Q6d5 Qb5 Nf7 Be3 Q4c5 Rc2 Qa2 Nd5 Qb6 N2d4 f2+ Kd2 Qb1 Qf3 Qa2 Be2 f1Q Qfg4 Qf5 Bf2 Qf3 Qh4 Qf5 Qc8 Nd8 Qcc5 Nc6 Bh5 Qf3 Ke1 Qf4 Rg1 h1Q Nd8 Qhh2 Rg3 Qh6 Qg6 Qf8 Rh3 Rf3 Re2 Rb3 Nc2 Qhf4 Qg7+ Q4f6 Bg1 Qh8 Reh2 Qf8 Bf2 Qh8 Qe3 Qf8 Qf3 Qh8 Nce3 Kd4 Qf5 Qf8 Nf4 Kc3 Nc2+ Kb2 Nd5 Qf7 Rf8 Qg8 e8N Kb1 Nec7 Qh8 Re8 Qff8
2Q1B3/2nNR1Bk/1b1q1Kbq/4Q3/2R5/3rQPr1/BbR3Pq/1nR2BN1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kf7 Kf3 Kg7 Ke4 c5 Ke5 h5 d4 e6 f3 h4 b6 h3 b7 h2 g6 c4 d6 c3 a6 c2 d5 Rh6 d7 Ba3 d6 Qb6 d8R Qc7 a7 Rh3 f6+ Kh8 g7+ Kh7 f7 Qe7 f8Q Na6 b8Q Nc5 d7 Ne4 Ra2 Nd2 Bb2 c1B Qdb3 Rg3 Re8 Nf6 d8R Nd5 Nc3 Nc7 Ne4 Nb1 Qe3 Bc5 Rd4 Qd6+ Kf6 Bb6 Rc4 e5+ Re6 Bb7 Nc5 Be4 Qfc8 Bg6 Nd7 e4 Bd4 Ba3 Rac2 Bb2 g8B+ Kh8 Qb3 e3 Qa3 e2 Qe3 e1Q Bf7+ Qf8 Re7 Kh7 Bc3 Qh6 Be8+ Kg8 Bd4 Qb4 Be5 Ba5 Qb5 Bb6 Bd4 Rb8 a8B Kh8 Bd5 Qd6+ Be6 Ra8 Qf5 Ra3 Qfe5 Rd3 Rc6 Qa3 Ba2 Qa6 R6c4 Qa3 Ne2 Qc5 Rg1 h1Q Bc3 Q1h3 Rh1 Qb4 Ng1 Qh2 Qf5 Kg8 Ke5 Na6 Be2 Ba1 Nh3 Bf7 Rhc1 Nc7 Ng1 Kh8 Bf1 Bb2 Qh5 Qd6+ Kf5+ Kh7 Bg7 Qb4 Qhg5 Qa3 Qgf4 Qc5+ Qfe5 Bg6+ Kf6 Qd6+
3N2k1/4qR2/6BR/2P2r1Q/2Qq1rBR/2Q1RnP1/q1nr3B/1NBb1bK1 w - - 0 1 legal: proof: g4 c5 e4 f5 exf5 g5 a4 b5 axb5 c4 f4 c3 fxg5 Bh6 dxc3 Bg7 c4 Be5 c5 Bg3+ hxg3 Qc7 Ra6 Qb6 Ra1 Qd8 Kf2 Kf8 c4 h5 b4 a5 b6 e5 f6 d5 b7 e4 g6 d4 g7+ Kf7 c6 a4 g5 d3 b5 d2 c7 a3 g6+ Ke8 b6 a2 f7+ Ke7 f8R h4 Nh3 e3+ Kg1 e2 Rf7+ Ke8 Ng5 e1Q Ne6 h3 Qh5 Nf6 g8B d1B g7 Nc6 b8B Ra4 b7 Ne5 Ba7 Nd5 b8R Ne3 Rb3 Nc2 Bh7 Rf8 g8Q Qd4+ Re3 Ba6 Nd8 Bb5 c8Q h2+ Kg2 Qb4 Be2 Qe7 Bg4 Nf3 Bg6 Ra5 Qcc5 Ba6 Qa3 Rf5 Qc3 Rf4 Rf1 h1R Bc5 Rh4 Rh1 Rh2+ Kf1 Rd2 Rh4 Ng5+ Kg1 Rf5 Na3 Rf4 Rb1 a1Q Rb6 Qa2 Nb1 Qd5 Bd4 Qd7 c5 Bf1 Bd3 Qdd5 Rh6 Qd6 Bg6 Qdd5 Re2 Qde4 Bf2 Qd4 Re3 Rf5 Kh1 Nf3 Bg1 Rf6 Bh2 Rf4 Qh8 Rf5 Qf6 Rf4 Qe6 Rf5 Qec4 Rf4 Rfh7+ R8f7 Rg7 Kf8 Rgh7 R7f5 Rg7 Nfe1 Rf7+ Kg8 Kg1 Nf3+
2rkN2R/1Bnq1r1N/P1KQ4/R1Q3nN/Q5nP/rRBN4/2b4b/5q1Q w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 Ke2 e5 Ke3 c5 Ke4 g5 d4 c4 f4 g4 a6 c3 f6 g3 f7+ Kd7 f5 g2 f6 c2 d6 Rh7 Kd5 e4 h6 e3 b6 e2 b7 e1N Nc3 Qb6 Nf3 g1Q Bg2 Qf2 Bb2 c1R Ra5 Rb1 Ne2 Nd3 Ne5+ Kd8 d7 Qf4 Ng3 Nc5 Nh5 Ra7 Bc3 Rb3 Nd3 Rb1 Qa4 Rg7 h7 Qh4 h8Q Nc6 b8R Be7 f8N Qe1 f7 Nh6 Nh7+ Rg8 f8N Rb7 N7f6 Qf1 Ne8 Ra1 Nh7 Qa7 h3 Rc7 Rb3 Ng4 Qe5 Bh4 Qd6 Ne6 Qc5 Bf6 Kd6 Rg7 d5 Nce5 Rh2 Nf3 Bh1 Rb7 Kc6 Nfg5 Be4 Be7 Bh1 Bd6 Bf3 Ke7 d8Q+ Kf7 Nb2 Nf8 N7f6 Re7 Nf4 Qd1 Kb5 Bc7 d6 Ra3 d7 Nfe6 Ba8 Kf8 Kc6 Rf7 Rh1 Bd6 Qc7 Qg1 Qb8 Qf2 d8Q Be5 Qdd5 Qf1 Rh2 Bd6 Qh1 Rc7+ Kd5 Rc6 Qbb6 Qe7 Bb7 Bd7 Qd8 Rc8 Qdc7 Be5 Q7b6 Bb5 Qbd6 Be2 Nbd3 Nc7+ Kc6 Bd1 Rf2 Bc2 h4 Rh7 N4h5 Bh2 Rf3 Kf7 Qg3 Rg7 Nh7+ Ke6 Rf8 Rf7 Rh8 Qd8 Qa7 Ke7 Qgf4 Qd4 Qc5+ Kd8 Qg3 Qc4 Qf4 Qe6+ Qfd6+ Qd7+
1N3r2/1Q2R2B/1RQRK2n/rN2n1B1/2PBqn2/N2kP2B/2n2R1b/n1b5 w - - 0 1 legal: proof: d4 c5 dxc5 g5 g4 b5 f4 e5 fxe5 f5 gxf5 g4 a4 g3 axb5 Bb7 h3 Be4 Ra5 Bf3 Ra1 Bg4 hxg4 Bg7 Ra3 Bh6 Ra1 Bf8 Kd2 Kf7 Kd3 h5 Kd4 a5 Kd5 d6 c4 g2 b4 a4 f6 Kg6 g5 Kf5 c6 a3 g6 h4 f7 h3 e6 a2 c7 h2 c8Q Ra4 g7 Nc6 e7+ Qd7 e8R Rh3 b6 Ra5+ b5 Rha3 b7 Ra8 b8B Rf3 b6 Nh6 g8B Rfa3 b7 Ne5 Nf3 g1B Ba7 Ra5+ Qc5 Qa4 Bg5 Qc2 Qc1 Rc8 b8N Rd8 Qb2 Be7 Bh4 Bg5 Qb7 Bc1 Bh3+ Kf4 Qcb5 Qe4+ Ke6 d5 Na3 d4 f8R+ Ke3 Rb1 a1N Re7 Rc8 Bh7 Rd8 Rf5 Rf8 Ng5 Kd2 Nf7 d3 Bg5+ Kc3 Q5c6 d2 Nd6 d1N Bf2 Ne3 Rb6 Nec2 Bc5 Bge3 Rf6 Bf4 Rd1 h1N e3 Bh2 Rf2 Ng3 Rd5 Nh5 Bd4+ Kd3 Ndb5 Rh8 Rdd7 Rf8 Rd6 Nf4+
7R/5PQ1/n2rN3/k2rRBNQ/rnQ1Q1r1/2q2N2/R1r2PN1/1KB1b2b w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 h4 Kd7 d4 c5 Kd2 Kc7 Kc2 g5 h6 e5 h5 c4 h7 c3 f6 e4 f7 e3 h6 g4 d6+ Kb7 a6+ Kb6 a7 e2 d7 e1R d5 g3 d6 g2 Qh5 Nf6 Ne2 g1R Nf4 Bb7 Bh3 Bg2 Nd2 Re2 Kb1 Qc7 d8N Bf3 d7 Ng4 Nde6 Bd6 d8N Bb4 Ra2 Ne3 Ng5 Qc4 Ng2 Rg8 h8Q Nd5 h7 Rg6 Bf5 Re5 Nde6 Na6 Qg7 Qc6 h8R c2+ Ka1 Be4 Ndf3 Be1 Kb2 Ndb4 Rh4 Re8 a8Q Rd5 Rf4 Qc5 Qc8 Qe3 Qc4 Ra8 Rg4 Qa3+ Ka1 Ka5 b6 Rh6 b7 Rg6 b8Q Rh6 Nc5 Rhd6 Qe8 Ra7 Nce6 Ra8 Ngh4 Ra7 Rf4 Rg4 Ng2 Ra8 Nh2 Bf3 Re4 Ra7 Re5 Ra8 Ngf4 Bh1 Ng2 Ra7 Qec6 Ra8 Qe4 Ra7 Qcc4 Ra8 Bb2 Ra7 Nhf3 c1R+ Qb1 Rc3 Qbe4 Rc2 Bc1 Ra8 Kb1 Ra7 Rb2 Qc3 Rb3 Ra2 Rb2 Ra4 Ra2 Rc7 Qce2 Qd4 Qf1 Rc2 Qc4 Qc3
R2QR3/1RbKQ2n/1Q2B2r/2NP4/2N1n1B1/2nqbn2/1B1B1rPk/2rQ4 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 f5 h4 f4 hxg5 f3 exf3 Bg4 fxg4 Nh6 f4 Ng8 f5 Bh6 Qa4 Bg7 Qd1 Bf8 Ke2 Kf7 Kf3 a5 Ke4 c5 Ke5 h5 b4 h4 d4 c4 f6 Kg6 Ke6 c3 d6 h3 b6 c2 d5 h2 f7 a4 b5 a3 d7 a2 b7 Ra5 b6 Na6 b8B Qc8 b7 Ra4 Bd2 c1B Be2 Rh6 Be5 Nb4 b8Q Qc3 d8Q Qd3 Qbb6 Nf6 Bb2 Nh7 Kd7+ e6 Nf3 Bd6 f8R e5 Ne1 e4 Re8 e3 Qe7 Ra8 Bf3 e2 Na3 Ra5 Rg1 h1N Nc4 Ng3 Rb1 a1R Ra8 Qc2 Nd3 e1N Nc5 Ne4 Be2 Nf3 Re1 Rb5 Be5 Rh5 Qf8 Rh6 Be3 Nfd2 Qa5 Na2 Rb4 Rb6 Bb2 Rb8 Rb7 Be5 Qb6+ Nd6 Bf4 Qd3 Qe8+ Kg7 g6 Kf6 g7 Nc3 g5+ Kf5 g8Q Rb1 g6 Ra1 Qe7 Rf8 g7 Rff6 Qgd8 Rf7 Bf1 Rb1 Re2 Kg4 g8B Rff6 Be3 Kg3 Qee8 Rf2 Re1 Bf4 Be2 Kh2 Bg4 Nf3 Qf8 Bg3 Bg5 Bd2 Re8 Nde4 B8e6 Rc1 Qfd6 Bdf4 Q6e7 Bc7 Be3 Bgf4 Bd2 Be3
bNBqb3/3RBQ2/r7/2N3N1/1k1bP1R1/bBN1qBP1/3nQ3/n2QK2r w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 d4 Kd7 d6 c5 b6 Kc6 b7 Kb5 a6 h5 a7 f5 g6 c4 g7 c3 d7 c2 d5 h4 e6 f4 d6 f3 g3 h3 e7 h2 e8Q Kc5 Bh3 Kb5 Ra4 Rh5 Rg4 Na6 b8N Rh6 Qf7 Nc5 Bg5 c1B Be7 Nf6 g8B Nfe4 Nc3+ Kb4 e3 Bb2 Qe2 Qe8 d8N Bd7 Nb7 Nb3 Nc5 f2+ Kf1 Qc8 Nf3 Na1 Ng5 Be8 d7 Qd8 Rg1 h1B Rg2 Qc7 d8Q Ra6 Qdd1 Qd8 Qf6 Ba3 Bb3 Bg7 Qf7 Bd4 Rf4 Rf6 Bc8 Rh6 Rg4 Ra6 Nbd7 Rb8 a8B Rbb6 Rh2 Rh6 Nb8 Rh8 Rh6 Rh7 Rd6 Rh6 Qa2 Nd2+ Ke2 Bhc6 Rd7 Bg2 Bf3 Rh1 Qe1 f1Q+ Kd1 Ne4 Qe2 Qg1 Q1f1 Nd2 Qfe1 Bh3 e4 Qe3 Qg1 Bf1 Ke1 Bh3 Rh4 Be6 Rg4 Bd5 Qf1 Ba8 Qg1 Rh2 Qf1 Qg1 Qd1 Qe3+ Qfe2 Rh1+
Kn4N1/RnP1n1nq/r4b1Q/5N1R/4b1R1/kB2N1R1/3P3B/b2QBn1B w - - 0 1 legal: proof: b4 b5 e4 d5 h4 g5 hxg5 a5 c4 c5 cxd5 f5 exf5 c4 a4 Ra7 axb5 Rc7 Bd3 Nh6 Bf1 Rc5 bxc5 Ng8 Ke2 Kd7 Ke3 h5 Ke4 e5 g4 a4 f4 h4 c6+ Kd6 f6 Kc5 g6 Kb4 f7 c3 g5 a3 c7 c2 d6 h3 Kd5 h2 d7 a2 b6 e4 f5 e3 g7 e2 g6 e1B f6 Nh6 g8B Ba6 g7 Qe7 d8B Bd3 b7 Na6 Kc6 Qe5 b8R+ Ka4 Kb7 Be2 Bb2 Qh5 Bg2 Bd3 Na3 Nf5 Ka8 Qh7 Nf3 Ne7 Nc4 Bh4 Rb3 c1N Be5 Ne2 Ne3 Nf4 Nd4 Ne6 Ndf5 Nb8 Rb4+ Ka3 Rg4 Bg5 Rg1 h1N Bh2 Ng3 Bh1 Nf1 R1g2 Nc8 R2g3 Bd6 f8Q Ne7 Bf7 Be5 g8N Ng7 Bb3 Bh4 f7 Bhf6 Rc1 a1N Rc5 Be4+ Rd5 Ne8 Qh6 Ng7 f8R Bd4 Bc4 Nb3 Re8 Nc5 Bb3 Ng6 Re6 Nb7 Ra6+ Kb4 Ra7 Ba1 Nge7 Re8 Ng8 Re6 Rc5 Ra6 Rd5 Bfe5 Bh4 Ka3 Rh3 Ne8 Be1 Ne7 Rh5 Beb2 Rd6 Bc3 Rdg6 Ng7 Rg3 Bd4 R6g4 Bf6
3KN3/1qB2NQB/r1k5/3NR2r/1P1R1b2/2qbr2Q/PBnq4/Q3rB1Q w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 hxg5 Nc6 c4 Nb8 cxd5 Bh6 Bc4 Bg7 Bf1 Bf8 Bc4 b5 Bf1 a5 Qf3 a4 Qd1 a3 bxa3 Be6 Rh3 Bd7 Rh1 Bc8 Bd3 b4 Bf1 b3 Rh6 Nc6 Rh1 Nb4 axb4 Ra7 Bc4 Ra4 Bf1 Ra8 Ke2 Kd7 Kf3 e5 Kg4 c5 f4 b2 d4 e4 d6 h6 f6 e3 Kf5 e2 g4 e1R f7 c4 d5 c3 g6 h5 g7 h4 g5 h3 g6 h2 Nh3 c2 Ng5 Re7 Nc3 b1R Bb2 Nh6+ Kf6 c1Q g8N Bb7 g7 Qc2 f5 Kc8 d7+ Kc7 d6+ Kb6 Nd5+ Kc6 Qh5 Qd3 Qh3 Qc8 d8B Qd7 Bc7 Rbe1 Rd1 Qc4 Rd4 Qd8 d7 Qb8 d8Q Qd3 Qd6+ Kb5 Qe5 Re8 Rg1 Bd6 f8Q h1Q Nf7 Bc8 Rg5 Qa7 Qe4 Qg1 Qeh1 R8e3 Qe7 Qf2 Qe5 Ba6 Ke6 Rb1 Kd7 Qb7 Ngf6 Rbe1 g8B Ng4 Ne8 Rh5 f6 Qd2 Bh7 Ra7 Kd8 Kc6 Rf5 Q3c3 Rg5 Rd3 Rf5 Ne3 Rg5 Nc2 Rf5 Rd1 Qe1 Bf4 Re5 Rc1 Qd1 Re3 Qe1 Bd3 Qd1 Na3 Qe1 Rc2 Qa1 Rc1 Nh6 Re4 f7 Rce1 f8Q R4e3 Qg7 Nc2 Nf7 Ra6
3kB1RQ/6R1/1bb2q2/1Q1PR2N/1Q4Pq/1B1N1q2/1BrrBrnr/K3Q3 w - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 cxd5 b5 exf5 b4 h4 b3 hxg5 Bg7 f4 Nc6 g6 Bf8 axb3 Ne5 b4 Nf7 b5 Ng5 fxg5 Qd7 Ra2 Qd6 Ra1 Qd8 d6 a5 d4 c5 Kd2 h5 Kc2 e5 b4 c4 Kb2 e4 g7 a4 b6 h4 d7+ Ke7 g6 h3 f6+ Kd6 b5 h2 b7 Kc7 b8R e3 b6+ Kd6 f7 Ke7 b7 e2 Nd2 e1R Ndf3 Re4 Ne1 Nf6 g8B Rf4 g7 Nh5 Nh3 Re4 Nd3 Nf4 Qe1 a3+ Kb1 Rh5 Be2 a2+ Kb2 Ra7 Bh7 Re3 g8B Rf3 Bg6 Rf2 Ra8 Raa5 b8Q Bb7 Ra7 Bf3 Qb5 Bc6 Rc7 Bh6 Rb7 Qf8 Rc7 Ng2 Nhf4 Rf3 Rf1 h1Q Ra7 Rh4 Nh5 Be3 Rc7 Rf6 Rf5 Qh3 Rc5 Rf2 Rb7 Qg3 Rg5 Rh2 d8Q+ Ke6 Qa8 Qh4 Rb8 Ke7 Rf5 Qe8 f8Q+ Kd7 Rc8 Qe4 Qfb4 Qf3 Qab8 Ra6 Q8e5 Ra8 Qh8 Ra7 Rcf8 Kc7 Be8 Kd8 Bgf7 Ra5 Rg8 c3+ Kb3 c2 Kb2 Ra7 Bb3 Ra8 d5 Bb6 Bh6 c1R Bg7 Rd1 Rg5 Rc8 Rf5 Bb7 Rc1 Ba8 Rc7 Bb7 Rcf7 Rc5 Bc3 Bc6 Rfg7 a1Q+ Kc2 Qa5 Kb2 Rd2+ Kb1 Qa7 Bf6+ Qe7 Bb2 Rc4 Re5 Qef6 Ka1 Rcc2
1q2k1q1/2qb1n2/BQ1PB2N/5Qn1/1BNP3r/1KnR2RQ/Q1b1q1B1/4N3 w - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 g3 Bh6 fxe5 f4 g4 Ra6 Ra3 Rf6 Ra1 Rf5 gxf5 g4 Nf3 Ba6 Ng1 Bg5 hxg5 Bc8 e4 h5 b4 c5 d4 a4 Kd2 h4 Kc2 f3 e6 c4 f6 f2 g6 h3 g7 a3 d6 c3 e7 h2 f7+ Kd7 e8B+ Ke6 f8Q a2 e5 g3 b6 g2 b5 Qh4 b7 Qg3 b6 Rh5 Bc6 Bd7 Nf3 g1N Ba6 f1Q Ne1 Bc8 Qd2 Qff3 Na3 Rh6 Nc4 Bd7 Kb3 Nh3 Rg1 h1B Ba3 Ng5 Bb4 Ne7 g8N Qe2 Bg2 Rh4 Rd1 a1Q Qa2 c2+ Rd3 c1Q Nh6 Nbc6 b8Q Nd5 b7 Nd8 Qc8 Nc3 b8Q Ndf7 Qb6 Qgg4 Ba8 Be4 Rgg3 Bh7 Bg2 Bf5 Qb1 Qa5 Qa2 Qc5 Qh8 Qc7 Qh7 Qb8 Qcc5 Bc6 Qd5+ Kd7 e6+ Ke8 e7 Bcd7 Qdb5 Be4 Qbf5 Qh5 Qh3 Qg6 Qf5 Qg7 Qh3 Qf8 Q7f5 Qg8 Ne5 Bec6 Rdf3 Nce4 Re3 Qc5 Nc4 Nc3 Ref3 Be4 Re3 Bb1 Rd3 Be6 Nc2 Kd7 Ne1 Qcc7 e8B+ Kd8 Bec6 Bd7 Bcd5 Ke8 Be6 Bc2+
B7/2n1kn1B/1q1N2PQ/R2n1Q2/1nn1BN1K/2BP2rR/4RQ2/1b1Q1qq1 w - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 g3 Bh6 fxe5 f4 g4 Ra6 Ra3 Rf6 Ra1 Rf5 gxf5 g4 Nf3 Ba6 Ng1 Bg5 hxg5 Bc8 Kf2 c5 e4 h5 b4 h4 e6 f3 e5 c4 d6 h3 Kg3 c3 d7+ Kf8 b6 c2 f6 f2 e7+ Kf7 e8B+ Ke6 d3 h2 b5 a4 b7 a3 b6 a2 f7 Rh6 f8Q Nc6 b8R Nf6 b7 Rg6 Bb2 c1Q Nc3 Ng8 Qf5+ Ke7 e6 Ne5 Nh3 Qc7 Nb5 Nf7+ Nd6 Qb6 Bg2 f1N+ Kh4 g3 Bc3 Nf6 Be4 g2 Nf4 g1N Ra8 Nd2 b8Q Ne2 Ra5 Ba6 Qa7 Nd4 Rb1 a1N Rb2 Nc4 Re2 Nb5 d8Q+ Kf8 Qdb8 Nc7 B8c6+ Ke7 Ba8 Nc2 Qh8 Nb4 Qg7 Nfd5 Qh6 Qb7 Qf2 Qb6 Rg1 Qce3 Rg3 h1Q+ Rh3 Qf1 Qe5 Kd8 e7+ Kd7 e8B+ Kd8 Qf3 Qeg1 Qf5 Ke7 Qf2 Bb5 Bd7 Ba4 Bc8 Bc2 Be6 Nfe5 Bg8 Bb1 Bh7 Nf7 Rea2 Re6 g6 Re5 Re2 Re6 Bf3 Re3 Be4 Rg3
2qN4/Q1q2B1B/1q1Q1Q2/Nq5R/QB1bq1N1/PP3bq1/3R1r2/2KN1k1n w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c5 b3 Na6 d3 c4 d4 Nc5 dxc5 b5 b4 Rb8 bxa5 b4 Bf4 b3 Bd2 b2 Bc1 Rb3 cxb3 Rh6 Nh3 Rh7 Ng1 Rh8 Kd2 Kf7 f4 Kf6 h4 e5 c6 d5 a3 g5 h6 e4 h7 d4 h5 g4 h6 d3 a6 g3 c7 g2 a7 Bb4+ Nc3 b1Q a8N Qe7 Ra2 Qe5 Qg4 Bc5 Nh3 g1Q Nb6 Bb7 c8B Bc6 Nf2 Bd4 Ncd1 Ba4 Be6 Qb8 Bf7 Ne7 Rh5 Rf8 h8N Bc6 h7 Qc8 Bb2 Bd5 Bc3 Qg3 Bb4 e3+ Ke1 c3 Rd2 c2 Nc4 c1Q Na5 e2 Bg2 Q1c4 Be4 Qh2 Qg1 Qb5 Ng4+ Kg7 Qf2 Qbc1 Qg1 Q1c7 Qf2 Be5 Qa7 Bd4 Rb2 Qh3 Kd2 Qg3 Ra2 Bc6 Kc1 e1Q Rd2 Qcb6 Ng6 Qh1 N6e5 Bb7+ Nec6 Qhg2 Bed5 Qe4 Bc4 Qcc7 Nd8 Ba8 Bg8 Bc6 f6+ Kg6 h8Q Nf5 f7 Bb7 Qe5 Qc8 Rh8 Qbc7 Bh7+ Kh5 Qe8 Kh4 Qd7 Kh3 Qe8 Qbb6 Qa4 Bc6 Ngf2+ Kg2 Ng4+ Kf1 Be6 Ng7 f5 Nh5 f6 Qb5 Bd5 Qcb6 Bc4 Qgc7 Bd5 Ng3 Be6 Nh1 Bd5 Rg8 f8Q Rg6 f7 Rf6 Qd6 Rf2 f8Q Ba8+ Rc2 Bb7 Qff6 d2+ Kb1 Bc6 Bf7 Rf3 Bhg8 Qe3 Nc3 d1Q+ Kb2 Be4 Rh5 Qde2 Bh7 Rf2 Rd2 Qg3 Kc1 Bc6 Nd1 Bf3+ Qc6 Qe4 Qc5 Bc3 Qcd6 Bd4+
1b3N1b/1RB2R2/6B1/R1PRPbk1/B1q3n1/K2q4/2N2Qpr/Q2BnrN1 w - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 b4 gxf5 b3 axb3 g4 b4 Qg5 hxg5 Kd8 b5 Ke8 Kd2 Ke7 Kc3 h5 Kb3 d5 e4 a5 c4 d4 e6 d3 c6 g3 g6 Kf6 c7 h4 b6 h3 g7 h2 e7 d2 e8B g2 b7 Be7 c5 a4+ Ka3 Nc6 b8R Bd8 b4 Bb7 c8Q Nd4 b5 Nh6 g8B Bd5 b6 Bc7 b7 Bd6 Bgf7 Bc4 Bg6 Bf4 Be2 Kg5 f6 Ng4 f7 Nf5 f8N Bd3 Bb2 Bc2 Be5 Nh4 Bc7 Nf3 Qe6 Rh5 Qa2 Ne1 Rd8 Ra7 Qc1 d1Q b8R Qd3+ Rb3 Ra6 Bd1 Rf6 Rd5+ Rf5 Qcb2 Be5 Qd4 Rf1 Qf2 Qc4 Rb7 Qd3+ Kb4 a3 Ba4 Rh8 Qb2 a2 Na3 Bb1 Nc2 Rh3 Ne2 Rh7 Rg1 h1Q Qbd4 Qc4+ Ka3 Qh3+ Qc3 Rh4 Rh1 Rh8 Ng1 Qhd3 Rh3 Rh5 Rf3 Rh2 Rf7 Qd2 Nb4 Bd3 Nc2 Qe2 Rab1 a1B R1b5 Qf3 Ra5 Qf5 Bb6 Bb8 Qh8 Bf6 Bc7 Bg7 e5 Qf3 Qh3 Bh8 Qhg3 Qe2 Qgf3 Be4 Qc3 Bf5 Qa1 Qed3+
1Q2N3/r2B1p1k/1QB5/b1qn2bq/1BPPR1R1/2QRn1r1/5n1B/4QKN1 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 b5 g4 b4 gxh5 b3 axb3 Ne7 b4 Ng8 b5 Bb4 Qc2 Bc5 Qd1 Bf8 b3 c5 Bb2 d5 Ba3 Bf5 Bc1 Bd3 cxd5 c4 Bg2 c3 Bf1 Bc4 bxc4 Qa5 Qb3 Qc7 Qd1 Qd8 h4 a5 e4 g5 b6 a4 e6 c2 b7 a3 h6 a2 e5 g4 h7 g3 h5 g2 d6 Bh6 e7 Qd7 Rh3 Qc7 Nc3 Bf8 h6 Ra5 Ne4 Ra4 Ba3 c1Q Rd3 Ra7 Bb4 Na6 b8B Kd7 e8R Qc5 e6+ Kc6 e7 Kd7 Nf6+ Ke6 d7 Kf5 d8Q Kg6 Qb6 Nc7 Be2 Nd5 Bg4 Bg7 Bh2 Ne3 Bd7 Qc2 Rc1 a1B Kf2 Bb2 Qe1 Qd1 Rcc3 Bc1 Rd4 Qc6 Rcd3 Qh5 Re4 Qcb5 Rf8 Qbd5 e8B Ne7 Rg8 Qc5 Bc6 N7d5 Bed7 Ne7 Ne8 N7d5 Rf8 Rg8 h8Q Bgb2 h7 Bc3 Qd4 Kh6 h8Q+ Kg6 Qhe5 Kh7 Qeb8 Rg7 Rg8 Rg3 Ne2 g1N Rgg4 Nd1+ Kf1 Nh3 Ng1 Nhf2 Ba3 Ba5 Bb4 Bb2 Qde3 Bf6 Qd4 Bg5 Qc3 Rh3 Rf3 Rg3 d4 Kg8 Rfe3 Kh7 Rd3 N1e3+
Qrn2b1B/P1K1RR1B/B4nq1/k1pb4/Nq1Q4/P1R2QQ1/4qR2/N1r5 w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 e5 exf5 d5 cxd5 e4 b4 e3 bxa5 Kf7 dxe3 Ra7 e4 Ra8 e5 Ke8 Kd2 Kd7 Ke3 c5 Ke4 Kc7 f4 g5 h4 b5 a6 Kb6 e6 g4 Ke5 g3 e7 b4 e8B b3 f6 g2 h6 b2 f5 Qc7+ d6 Qc6 h5 Rh7 a7 Rd7 a3 Ka5 f7 Qf3 h7 Bg7+ f6 Bh8 f8R Qb3 h6 Qf3 Bg6 Kb6 Nc3 b1Q Na4+ Ka5 Ne2 g1Q Rf7 Kb5 Rh3 Qbd3 Nd4+ Ka6 Nb3 Rd8 d7 Kb5 Bb2 Qb7 Qf3 Qb6 Re1 Na6 Na1 Bg7 h8Q Bf8 h7 Nh6 Qg7 Nc7 h8Q Nf5 Bh7 Qc4 Qgg3 Ne7 Qhg8 Qa5 Kd6 Rb8 Be5 Re8 d8Q Qe2 Q8g4 Ba6 Qd4 Qb4 Qc8 Ka5 Qd8 Rb5 Qda8 Rbb8 Kd7 Bb7 Kd6 Qeh2 Ba6 Ncd5 Re4 Qe2 Re3 Nc3 Kc7 Ne4 Rc3 Qgb1 Rh2 Bc6 Rf2 Nc8 Re7 Bd5 f7 Qbd3 Bh8 Nf6 Qfg4 Qg6 Q4f3 Bg7 f8R Rd8 Rff7 Bf8 Re6 Re8 Re4 Re5 Ree3 Rh5 Re5 Rh1 Ree7 Rc1
1bQ1K3/NRq1Q3/q1R1n1Qb/3b1QR1/1np3P1/3BN3/P2r3q/B2RN2k w - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 a4 cxd5 a3 bxa3 Ra5 a4 Ra6 a5 Ra8 g4 b5 h4 g5 fxg5 Ra6 h5 Rg6 hxg6 Ba6 Rh5 Bb7 Rh1 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 c5 d4 h5 a6 c4 g7 h4 a7 h3 a8Q e6 g6 b4 f6 e5+ Kg5 h2 Na3 e4 Qc2 e3 Bd3 b3 Rb1 b2 Nf3 e2 Ne1 Qb6 f7 Nh6 Kf6 Qb5 g8Q Qb4 g7 Kd7 d6 Na6 d5 Qb7 Qh7 Qc6 g8R Qc7 Rg5 Nf5 Qg6 Bh6 f8Q Ng7 Kf7 Ne6 Bf4 Nb4 Be5 Ba6 Rd1 b1Q Ba1 Bc8 Qa6 Bb7 Qe7+ Kc8 Rf1 h1Q Rf6 Rd8 d7+ Kb8 d6 Bd5 Qf5 Qh2 Qc8+ Ka7 Rfg6 Kb6 Rg7 Kc6 Qg6 Rh8 d8R Kc5 Rd7 Rd8 Qf5 Qb3 R7g6 Qa4 Qb1 Qa7 Nac2 Qa6 Ne3 Kc6 N1c2 e1B Rf6 Bc3 Ne1 Kc5 Rfg6 Kd4 Rf6 Qcc6 Rb7 Qd7 Qg6 Qc7 d7 Bb2 Nf5+ Ke5 Qc2 Kf4 Ne3+ Kg3 Qf5 Rh8 d8N Be5 Nc6 Rd8 Na7 Bf4 Qb1 Kf2 Qc2+ Kg1 Rfg6 Rd7 Ke8 Kh1 Rf6 Qc5 Qg6 Bb8 Qf2 Qcc7 Qff5 Nf8 Rc6 Ne6 Bb1 Bg2 Bc2 Rd2 Bd3 Bd5
NQ2Q1Q1/2Nq1nr1/nN4K1/2RPp3/r2BB3/b1RqN1P1/1qQ1Br1k/8 w - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 f5 h4 f4 hxg5 f3 exf3 Bg4 fxg4 Nh6 f4 Ng8 f5 Bh6 Qa4 Bg7 Qd1 Bf8 Kf2 Kf7 Kg3 a5 Kh4 e5 Kh5 c5 b4 a4 d4 c4 g3 h6 b6 c3 f6 a3 g6+ Ke8 d6 Kd7 b7 Ke6 d5+ Kd7 b5 c2 b6 a2 g7 Na6 b8N+ Kc8 f7 Qf6 g5 Kd8 g6 Ra7 b7 Nc7 d7 Ke7 d8N Kd6 Nd7 Qe7 b8Q Rh7 Be3 c1Q Be2 Qc5 Na3 Qd4 Ne6 Qd8 Nf3 Ra4 Rc1 a1Q Nb5+ Ke7 Nb6 Kf6 Ne1 Kf5 Rc5 Na6 Ng2 Qd7 Nbc7 Qd3 Nca8 Qb2 Bd4 Ke4 Rc3 Ba3 Nec7 Kf5 f8Q+ Ke4 Kh4 h5 Kg5 h4 Ne3 h3 Qc2 h2 Rc1 h1R Qfe8 Nh6 g8B Rh2 g7 Rf2 Be6 Nf7+ Kg6 Rh4 g8Q Rh7 Bf1 Kf3+ Bf5 Rfh2 Be2+ Kf2 Bf1+ Kg1 Be4 Rf2 Be2+ Kh2 Rb1 Qa2 Rb5 Qb2 Rbc5 Rg7+
2qbR2B/2N1pb1K/2Q1bBBR/R6q/1r2nkN1/7B/3N1qPP/1nQ2N2 w - - 0 1 legal: proof: e4 d5 f4 Kd7 c4 b5 cxd5 g5 fxg5 b4 d6 Ke6 d7 b3 axb3 Bg7 b4 Kd6 b5 Bf8 d4 a5 e5+ Kd5 Qh5 Ra6 Qxh7 Rd6 exd6 Bb7 Ne2 Kc4 d5 Bc8 Ng1+ Kc5 Kf2 Kd4 Kf3 Ke5 Kg4 c5 Kh5 f5 Kg6 a4 b4 a3 b6 f4 b7 a2 b5 f3 b6 c4 Bb2+ c3 Bd3 f2 Nd2 f1B Qh6 Nf6 Ne2 Ng4 Ng3 Rg8+ Kh7 Nf2 g6 Qc7 d8Q Bf5 d7 Ne4 d6 Qc4 Qc7 Nc5 d8N Qa4 d7+ Kd4 Qc6 Ke5 Ne6 Qf4 d8R Nba6 b8N Bg7 b7 Nc7 Re8 Nb5 Nc7 Qf2 Rb1 Be2 Ngf1 a1Q Qg5 Na3 Nd7+ Kd4 b8B Ne4 Bc2 Bc4 Ne5 Bfe6 Ng4 Be5 g7 Bf7 Rd1 Nb1 Bd3 Rf8 g8B Bce6 Re1 Qa4 Re3 Qb4 Rh3 Qc5 Rh6 Bd6 Qf4 Qh5 Bc2 Bb4 Rg1 Ba5 Qg5 Nc5 Bg6 Ne4 Ba7+ Kd3 Bd4 c2 Bh8 c1Q Bbf6 Qc4 Qgc5 Qa6 Qc1 Qc8 Nd5 Bd8 Nc7 Ba2 Bf5 Bfe6 Bf7 Bab3 B7g6 Bf7 Nge3 Bbe6 Bh3 Rg8 Ng4 Ke2 Bf5 Rg5 Bg6 Rb5 Nfe3 Rb4 Rf1 Qfh4 Rf5 Qe1 Nef1 Qf2 Ra5 Kd3 Ne5+ Kd4 Ng3 Ke3 Ngf1+ Kf4 Ng4 Ba2 Q6c5 Bab3 Qc6 Bbe6
1b1n2N1/R1PbN3/1RBNQK2/Q5Bn/3k2pP/1rb3r1/nQ1Nr3/4QB2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Bb7 dxc5 Qb6 a4 Ba6 axb5 a4 Bc4 Qa5 bxa5 Bb7 Bf1 Bc8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 d5 c4 a3 h4 d4 f4+ Ke4 c6 e5 h6 g6 f6 d3 c5 d2 f7 a2 h7 Na6 b6 Ra7 f5 Kd4 c7 e4 b7 e3 b8Q e2 f6 e1R c6 Re8 Nc3 Bg4 c8N Rd7 c7 Ne7 Qb5 Bf3 Nd6 Nc6 Nce4 Nc5 a6 Rde7 a7 Ne5 a8B Nb7 Qe1 d1N Qba5 Nd8 Bc6 Rg8 h8Q Nd7 Rh3 Bh1 Rb3 Nc3 Rb6 Bf3 Bf4 Bg4 Qh6 Bg7 f8N Bh3 f7 Nf6 Bd2 Nh5 Nf6 Bd7 Bc1 Re2 Nf3+ Kd3 Bf4 Re3 Nd2 Bh8 Qg7 Kd4 Qh6 Rg7 Ng8 Rh3 Ne7 Rf3 Nh7 Rd3 f8Q Rh3 Rab1 a1B Nf6 Na2 Nfg8 Bc3 Ra1 Rhe3 Qf7 Rd3 Qe6 Rf3 Kg4 g5 Kf5 Rg3 Qh7 g4 Bg5 Rf7+ Kg6 Rff3 Qhf7 Be5 Qb3 Bf4 Qfe6 Be3 Qb2 Kd3 Rb8 Ba7 Rb3 Kd4 Rb6 Nf4+ Kf6 Bb8 Qbc1 Bb4 Qc2 Rb3 Qb2+ Bc3 Qaf5 Nc1 Ra7 Na2 Qa5 Nh5+
6n1/q5N1/R1rQ1P2/B1nBB3/2bR1K1P/1QrnN2B/4pk2/1Qn1NrN1 w - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 a4 a5 axb5 d5 c4 f4 cxd5 e6 e3 a4 exf4 Bc5 f5 Be3 Qg4 Bb6 Qd1 Ba5 bxa5 Qe7 Ke2 Qf6 Ke1 Qd8 Ke2 Ke7 Kf3 Kf6 h4 Ke5 d4+ Kd6 b6 c5 b7 g5 f6 g4+ Kf4 g3 a6 c4 f7 c3 f8Q+ Ne7 a7 c2 h6 a3 h7 a2 Na3 g2 Bd2 c1R Ba5 Qc7 Nc4+ Kd7+ d6 Kc6 d5+ Kc5 Qb3 Kd4 Ne3 Qc2 d7 Nbc6 b8Q Nb4 d8N Ng8 d6 Ba6 d7 Qc5 Nf7 Rc3 d8N Bc4 Ne5 Qc7 Qb7 Rc8 a8B Qb6 f3 Qa7 Nd3 Rc6 Rd1 a1N Qd6+ Bd5 Ne1+ Nd3+ Kg3 e5 f4 Ke4 f5 Bc4 Qb1 Nb3 Ne6 Nc5 Q7b3 Qd7 Ng7 Qa7 Ngf3 g1N Bh3 Ne2+ Kg4 Na6 Ng1 Nc1 Rh2 Nc5 Ra2 Ne7 Rdd2 Rf8 h8B Rf7 Bb6 Ng8 Ra6 Rf6 Ba5 Rf8 Kh5 Kf4 Bb7 Kg3 Kg5 Rf6 Rd1 Kf2 Ba8 Nb2 Rd4 e4 Kf4 Rf8 Ne6 Rf7 Be5 Rf8 Ng7 Rf7 Nf1 e3 Bb7 e2 Ne3 Rf6 Ba8 Rg6 f6 Rg5 Ngf3 Rg1 Bb7 Rf1 Ng1 Rb6 Bbg2 Rc6 Bd5 Nbd3+
bR1bB3/R1B3b1/2r5/RP4bN/BQ1np1k1/Nq1q2NR/1r2NP2/K2Q4 w - - 0 1 legal: proof: h4 f5 g4 d5 e4 g5 exf5 b5 a4 d4 axb5 d3 f6 Bb7 cxd3 Nc6 d4 Qc8 d5 Nd8 hxg5 Kd7 g6 Ke8 g5 Ne6 Ne2 Qd8 Ng1 Ng7 fxg7 Bc8 b4 Kd7 d4 c5 Kd2 h5 Kc2 e5 Kb2 a5 b6 c4 b7 h4 b8Q h3 d6 Ke6 d7 Kf5 d5 e4 d6 h2 Ne2 a4 Bf4 Ra6 Na3 Qc7 d8R Rh3 d7 Qc5 Bc7 Ne7 g8N Rh5 g7 Kg4 g6 Nf5 Ne7 Rc6 g8B Qb5 g7 Nd4 Nf5 Bb7 Bf7 Be7 g8N Ba8 Nfg3 c3+ Ka2 c2 Be8 c1B Nf6+ Kg5 Qb7 Qd3 Rb8 Bd8 Bh3 Rh8 Nfh5 Rf8 Bf1 Kg4 Qb6 Rg8 Rb7 Bh6 Ra7 Bhg5 Qa5 Rgg6 b5 Rgd6 Qb4 Rc2+ Kb1 Rdc6 Ra2 Rb2+ Ka1 Bde7 d8R Qb3 Rg1 h1Q Rb8 Qhf3 Rh1 Qfd3 Rh3 Bd8 Nc1+ Qf3 Bc4 Qd3 Nce2 Qf7 Nb1 a3 Bb3 Qe6 Ba4 Qeb3 Ra5 Rd2 Rc2 a2 Na3 Qf7 Kb2 a1B+ Kb1 Qff3 Ka2 Bc3 Rb2 Qf7+ Ka1 Qb3 Ra7 Nf3 Ra5 Bg7 Ra7 Nd4 Ra2 Rdc2 Nb1 Qd5 Bb3 Q5c4 R2a5 Rd2 Na3 Rb2 Ba4 Qcb3
1k4B1/1N3R1Q/3PPn2/4r1r1/r1KbBNR1/1B2pN2/2bB3N/qqQ1Qr2 w - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 f5 e4 d5 cxd5 e5 exf5 e4 a4 Bc5 axb5 Nc6 d4 Ne5 dxe5 Bf8 Ke2 Kd7 f4 h5 b4 c5 g4 Kc7 g6 a5 d6+ Kb7 f6 h4 b6 a4 g5 h3 f5 h2 b5 a3 g7 a2 f7 e3 Kd3 Ra7 g6 Be6 f6 Bb3 Qe1 Kc8 b7+ Kb8 Bd2 Be6 Nf3 Rh3 Rg1 h1Q Rg4 Rg3 Nh2 Qf3 Bg2 Bd7 Kc4 Qc6 Be4 Ne7 g8B Bf5 g7 Ng6 Qc1 Be7 f8N Rf3 f7 Rf4 Ne6 Qdb6 f8N Ra5 Nd8 Bf6 Nfe6 Rf1 Nf4 Ne7 Bf7 Nd5 g8B Bg7 Qe1 Nf6 Bfd5 Qa6 e6 Qa8 Qc1 Qe8 Qe1 Qg6 Qc1 Ka7 b6+ Ka6 Bd3 Be4 Qe1 Qb8 Kc3+ c4 Bc1 Qa7 b8Q Ne8+ Kb4 Be5 b7 Nf6 Nd2 Rc5 Bb1 c3 Ndf3 Bd4 Qc7 Qa8 Bc2 Ka7 Bd2 Qf5 Rc1 a1R Bcb3 Qg6 Bc6 Rg5 Bcd5 Bb1 Qc8 Qc2 Be4 Qd1 Qc6 Bd3 Qc8 c2 Qc3 Ra3 Ra1 Qb1 b8Q+ Ka6 Qbc7 c1R Qb2 Rcc5 Qbc1 Rce5 Qh7 Bc2 Kc4 Raa5 Ra4 Qa7 Rb4 Qa8 Rb8 Ra3 Nb7 Ka7 Re8 Raa5 Re7 Kb8 Rc7 Ra2 Rf7 Qa3 Ng1 Qab2 Ngf3 Q2a1 Nh5 Ra8 Nf4 Ra4+
1qn1N2R/Q5P1/4Q1RR/1B6/RrqBQPpn/1n1n4/1br1BQ2/1k1N2K1 w - - 0 1 legal: proof: c4 b5 h4 g5 d4 f5 a4 d5 cxd5 e5 dxe5 f4 axb5 f3 h5 Qf6 gxf3 Bd7 f4 Qd8 f5 Be6 Ra6 Bf7 Ra1 Bg6 hxg6 Be7 Bf4 Bc5 Bc1 Bf8 e4 Ke7 b4 h5 b6 c5 b7 a5 b5 g4 f6+ Kd7 f7 a4 b6 c4 d6 Kc6 g7 Kb5 d7 Kb4 e6 c3 e5 h4 e7 c2 e8Q Kb3 e6 h3 e7 a3 Qf3+ Ka4 Ne2 h2 Nbc3+ Kb3 Be3 Kb2 Ne4 c1N N2c3 a2 Bd4 Kc2 Nd6 Rh6 Qe4+ Kb2 Be2 Na6 Kf1 Nb3 b8Q Nb4 b7 Nd3 Qa7 Qb8 d8R Rh5 f4 Rb5 Nd1+ Kc2 Qd7 Rb4 e8B Ne7 Qde6 Nc8 Bb5 Be7 f8Q Bf6 Ne8 Nd2+ Kg2 Nf3 Kf1 Nh4 Rd6 Be5 Qfe7 Bf6 Qb6 Ra6 Qa7 Rc6 Qg2 Rc3 Qf2 Rcc4 Qe4 Be5 Rg6 Bf6 Rb1 a1N Q7e6 Nb3 Ra1 Rc7 Ra4 Kb1 Be3 Rc2 Bd4 Qc7 b8R Qc4 Rg1 h1Q Rb6 Qf3 Rh1 Qe3 Kg1 Qc1 Rba6 Qb2 Rc6 Nf5 Rhh6 Nh4 Rc7 Be5 Rf7 Bf6 Rf8 Be5 Rfh8 Bf6 Bc5 Qe5 Bb6 Qb8 Bc5 Bc3 Bd4 Bb2
k7/B1rrp1QR/1n1N4/b1n3r1/Q3qR2/1r1P2QN/2N1PRQ1/3qRB1K w - - 0 1 legal: proof: g4 b5 c4 g5 b4 d5 cxd5 a5 bxa5 b4 a4 b3 h4 b2 hxg5 Bg7 g6 Bf8 g5 Bg4 f3 Qd7 fxg4 Qb5 Nc3 b1Q axb5 Qb4 Nb1 Qd6 Rh6 Qd7 Rh1 Qd8 Kf2 Kd7 Kg2 Kc8 g7 Kb7 b6 h5 d3 c5 d6 f5 a6+ Kc6 g6 f4 g5 c4 d7 h4 b7 c3 a7 c2 Be3 c1R Na3 Rh5 Nc2 Na6 b8Q Nf6 g8R Bg7 Rf8 Nd5 Nh3 Bc3 g7 Nb6 g8Q Ba5 g6 Nc5 g7 f3+ Kh2 f2 Qg3 Kb7 Rf4 Rb8 a8R Rg5 Qf8 Rc8 g8Q Rc7 Qfg7 Qb8 Ra6 Qa8 d8N+ Kb8 Qd5 Rd7 Qdg2 Qe4 Nf7 Rb1 Bd4 Rb3 Ra8+ Kb7 Rh8 Ka7 Rh7 Ka8 Nd6 Rd5 Ng5 h3 Rg1 Re5 Kh1 h2 Nh3 Rg5 Ne3 Rc3 Qa4 Ra3 Re1 Rb3 Q2f3 Rg4 Nc2 Rg5 Bg2 f1Q Qfg4 Qf2 Rgf1 Qe3 R1f2 Qd2 Q4f3 Qd1 Bf1 Ne6 Kg2 h1R Be3 Rg1+ Kh2 Rc5 Qfg2 Rcc7 Bc5 Nc8 Ba7 Nb6 Q2f3 Rg2+ Kh1 Nc5 Qh4 Rg5 Qg3 Qc1 Qfg2 Qd1
B1n4q/B4r2/n1P1PRqk/3b4/2B2RBp/1nQ2QQn/q5KN/N1N3Q1 w - - 0 1 legal: proof: d4 b5 g4 e5 f4 c5 fxe5 a5 dxc5 f5 a4 g5 axb5 f4 h3 Bh6 h4 Ra6 Nf3 Rf6 Ng1 Rf5 gxf5 g4 Ra4 Ne7 Ra1 Bg5 hxg5 Ng8 Kf2 Kf7 c4 Kg7 e4 d5 b4 h5 g6 g3+ Kg2 a4 f6+ Kh6 b6 a3 b7 a2 c6 d4 c5 h4 c7 d3 f7 d2 f8Q+ Kg5 b5 Qd5 e6 Qc4 e7 Qc2 e8N Nh6 b6 Qb3 g7 Bg4 c8B Nd7 g8B Kg6 b8Q Qb5 b7 Ne5 Bd5 Be2 Nf6 Qc6 Bg4 Rh7 Qbc8 Ng8 b8Q Rf7 Na3 Bc4 Ne2 Nd7 e5 Ne7 Nc2 Bb3 Qe1 d1Q Be3 Qd4 Nc1 Qc3 Qd6 Nb8 Bc4 Na6 Qg1 Qa8 Rb1 a1N e6 Kg5 Qcc7 Nc8 Rb2 Ba2 Rb4 Nb3 Na1 Qd3 Bb7 Qg6 c6 Qa7 Ba8 Qb8 Ba7 f3+ Kf1 f2 Kg2 Qh5 Qd3 Qg6 Qa5+ Qe5 Qfd6 Kh6 Qf3 Qd5 Qe5 Qd8 Qac7 Qf8 Rh2 Qh8 Qec3 f1Q+ Kh1 Qe2 Bd5 Qhg8 Qfg2 Re7 Qd1 Qb5 Nd7 Nd2 Ne5 Q8e8 Nf3 Bc4 Qh3 Qh8 Rf2 Qa5 Nh2 Qa2 Rf6 g2+ Kg1 Rf7 Qhf3 Qh7 Qcg3 Qh8 Kf2 g1N Kg2 Bb3 Rbf4 Nh3 Qg1 Bc4 Be4 Bb3 Bd3 Bd5 Bc4 Nb3+
3Rn1r1/k6r/1r1RBN2/n2bP1Bn/8/1N2B2P/KnRNnpQ1/N3R1Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 fxe5 Be7 c4 Ba3 cxd5 Bf8 Nh3 h5 Nf2 g4 Ra3 Bh6 Nh3 Bg5 hxg5 h4 Ng1 h3 Ra4 h2 Ra1 Qf6 Qb3 Qf3 Qd1 Qh3 gxh3 Rh5 Qc2 Rh6 Qd1 Rh8 b4 Kd7 e4 c5 d4 Kc7 Kd2 Kb7 Kc3 a5 Kb3 f5 g6 c4+ Ka2 g3 d6 g2 e6 f4 b6 c3 b5 c2 e5 a4 d5 a3 d7 f3 d8B f2 e7 Rh4 e8N Rd4 g7 Rc4 d6 Bf5 d7 Be6 Ne2 g1R Nd4 Rb4+ Bc4 Bf7 Nf6 Ra7 Be3 Nc6 Nd2 Rb1 Be6 Nce7 N4b3 Nf5 Qf3+ Kb8 b7 Nd6 Qg2 Nc4 Be7 Nb2 d8R+ Kc7 Rd4 Kb6 b8N Rb7 Bd8+ Ka7 Na6 Rc7 Nac5 Rb7 Nfd7 Nf6 g8Q Ne8 Nf6 Re7 Q8g4 Bg8 Rd6 Rh7 Bf5 Bd5 b6+ Ka8 b7+ Ka7 Q2f3 Rg2 Rc1 h1N b8R Ng3 Be6 Nh5 Qd1 Rg3 Qg1 Rg2 Qf3 Rg8 Qfg2 Nc4 Na5 Rb6 Ncb3 Nb2 Be7 Ng3 Re1 Nh5 Rbd8 c1N+ Kb1 Bb7 Ra2 Ne2 Na1 Bd5 N5b3 Nd1 Rc2 Nb2 Rc3 a2+ Kc2 Nef4 Ng4 Nbd3 Nc5 Bc6 Bg5 Rhh8 Nf6 Nb2 Kc1 Rh6 Nc2 a1N Kb1 Rh7 Ka2 Nb3 Na1 Bd5 Rc2 Na5+ Ncb3 Ne2
1R1Q1B1r/rR1qn2B/B1Q1r1N1/BN1PpN2/4qr2/3Q4/4KP1r/2Qn2k1 w - - 0 1 legal: proof: c4 f5 e4 d5 exf5 g5 cxd5 b5 a4 g4 axb5 Be6 Ne2 Bg7 Ng1 Bh6 g3 Bf4 gxf4 g3 h3 Bf7 Bd3 Bh5 Bf1 Bg4 hxg4 Kf7 Qa4 Kf8 Qd1 Ke8 d6 Kf7 b4 Kf6 d4 a5 g5+ Kf7 f6 Kg6 f5+ Kf7 d7 h5 d5 Ra7 b6 c5 b5 e5 b7 c4 b6 g2 Bd2 c3 Nf3 g1R Nd4 a4 Na3 h4 Rb1 c2 Ba5 Rg4 Ba6 Nc6 b8Q Nh6 b7 Ne7 Qc8 Re4+ Qe2 Ng4 Rb5 Qe8 d8Q Qd7 b8Q Re3 Rb4 Rh3 Qa8 c1R+ Qd1 Rc6 Ke2 Re6 Rb8 Ne3 Qd3 Rf3 Re1 h3 Reb1 h2 Qc1 h1Q Qac6 Nd1 R1b7 Rfh3 Nab5 Rh2 Qde3 a3 Qed2 a2 Qd3 Re8 g6+ Kg8 f7+ Kg7 f8N Kf6 g7 a1R g8B Ra4 Qca3 Kg5 f6 Kg4 Nf5 Rf4 f7 Qg2 Ng6 Qe4+ Qe3 Rf8 Qd3 Re8 Bh7 Rh8 Ng3 Kh3 f8B Kg2 Nf5 Qc4 Qd2 Kg1 Qc1 Qe4+
2BQQ1Q1/2B1nR2/N2nr1r1/pqR2rrN/R2P1q2/1Q1R2r1/1PN4k/K7 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 d4 Kd7 Kd2 Kd6 Kc2 h5 g5 e5 f7 c5 f8Q+ Qe7 b6 a5 f6 c4 f5 g2 b7 e4 g6 c3 f7 e3 f6 h4 g7 h3 Ba6 h2 Ne2 g1R Nf4 e2 Ra4 e1R Qe8 Nd7 b8N Qe5 f8R Nb6 f7 Rg6 Na3 Rh5 Kb1 c2+ Ka1 Nc4 Bc8 Rf5 Na6 Ne7 g8Q Re3 Rg1 h1R Rg5 Rg1 Nh5 Reg3 Bf4 R1g2 Qf3 Rb8 Qb3 c1Q+ Nb1 Qd2 Na3 Rb6 Nc2 Qb4 Bd2 Qb5 Bf4 Rh3 Bh2 Qf4 Rg3 Rc6 Rd3 Rhg3 Nc5 Kc7 d6+ Kb6 d7 Rce6 d8R Nd6 Na6 R3g5 Rd7 Kc6 Qd8 R5g3 Re8 R3g5 f8Q R2g3 Ra7 Nd5 Rf7 Ne7 Qc3+ Kd5 Qb4 Ke4 Qb3 Re3 Bg3 Kf3 Bh2 Nd5 Ree7 Kg2 Qfe8 Kh3 Rc7 Reg3 Rc5 Ne7 Bg1 Qe5 Be3 Kh2 Bf4 Qf6 Be5 Ne4 Bc7 Nd6 Nab4 Qe5 Na6 Qf4
Q2R4/B3r1rk/P1B3Nq/nK1R1rQ1/1R6/1Q1B3P/n6p/1nn1qQRN w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 g4 c4 Bg7 cxd5 Bh6 Ke2 g3 Qa4+ Bd7 Nh3 Bb5+ Qc4 Bg5 hxg5 h5 Ng1 h4 Ke1 h3 Qb3 h2 Qd1 Be2 Nh3 Bg4 Ng1 Bh3 gxh3 Rh7 Bb2 Rh4 Bc1 Rh8 Ke2 Kf7 Kd3 Kg7 Kc4 c5 d4 e5 a4 e4 f4 b6 d6 g2 d7 e3 f6+ Kh7 g6+ Kh6 d5 e2 g7 e1Q f7 Qee8 f8Q Qee7 d6 Qh4 Nf3 g1N Nbd2 Nf6 g8Q+ Kh5 Ne4 Qe7 f5 Qg4 Ne5 Qg7 Be3 Ra7 Rb1 Rh7 Bd3 Qe2 Nf2 Ne4 f6 Nc6 f7 Qh6 d8Q Rc7 d7 Nc3 Qf1 Qe1 Rb5 Nge2 Rg1 Rg7 Nh1 Rb7 Qfe7 Ra7 f8R Na2 Rf4 Nec3 Qc8 Ne2 d8R Rd7 Qf6 Rde7 a6 Nec3 a7 Ne2 Ra5 b5+ Kd5 c4 Kc5 b4 a8B b3 Rb5 b2 a5 b1N a6 Na5 Bc6 Qc1 Qa8 Qe1 Bde4 c3 Qb3 c2 Bd3 c1R+ Rc4 Qf4 Ng6 Kh6 Bd4 Qfh4 Qg5+ Kh7 Kb6 Qh6 Rcb4 Rc2 Rbd5 Nec1 Kb5 Rf2 Ba7 Rf5
k4B2/3bb3/r1N2P1Q/5r2/4b1Bp/q1QP1R1B/N2npNRN/K1n1RR2 w - - 0 1 legal: proof: c4 b5 e4 g5 h4 d5 cxd5 e5 hxg5 a5 a4 f5 axb5 Qe7 Qe2 Qd7 Qd1 f4 f3 Qf5 exf5 e4 Rh5 e3 Rh1 Ra6 Rh3 Re6 Rh1 Re4 fxe4 Ba3 Rh3 Bc5 Rh1 Bf8 b4 Kd7 g4 h5 d6 c5 e5 c4 b6 Kc6 f6 Kb7 e6 f3 g6 e2 e7 c3 e8B a4 d7 a3 d8R c2 g7 h4 b5 a2 g5 Bg4 g6 Rh6 Nh3 Bd7 Nc3 Bf5 Nf2 Be7 Bd7 Bc5 Ba3 c1Q Bh3 Qb2 Rf1 Be4 Bdg4 Nd7 Qc2 Ne5 Rd3 Ne7 g8R Nc4 g7 Qb4 Rd1 a1R Na2 Bd4 Qc3 Nf5 Rc1 Qb1 Bf8 Ka8 b7+ Ka7 b8N Rh8 b6+ Kb7 Nc6 Qb5 Ne5 Kb8 b7 Bc5 Rb1 Ka7 b8N Be7 Nbc6+ Ka8 Re3 Qd5 d3 Rh5 Rc1 Qc5 Rd1 Na5 Kd2 Qa3 Kc2 Nc4 Rc1 Nd2 Rce1 Qd6 Kb2 Nd4 Nc1 Ra3 Na2 Ra6 Ka1 Qb4 Be6 Qc5 Neg4 Qa3 Nh2 Re5 Beg4 Rf5 Nd1 f2 Rf3 Qa5 Rh1 f1B Nf2 Bg2 Rhf1 Qb4 Rh8 Qb3 g8Q Qa3 Qh7 Bh1 Rg8 Bg2 Na5 Bc6 Qh6 Bd7 Rg3 Be4 Nc6 Qa4 Rf3 N4b3+ Kb2 Nc1 Ka1 Rg5 Bh5 Rga5 Rg2 Rf5 B5g4 Qa3
q1Q1Nn2/bB1qB3/1R2R3/1Nr1R3/1PB1pP1p/7N/Krbk1BN1/1n4Q1 w - - 0 1 legal: proof: b4 a5 e4 b5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 Ra6 Qxa4 Bb7 Qd1 Bc8 a4 Ra8 Bxb5+ Qd7 Bf1 Qd8 g4 Kd7 f4 Kd6 d4 h5 Kd2 e5 Kc3 c5 Kb2 e4 a5 c4 f6 c3+ Ka2 c2 a6 Bd7 a7 Na6 f7 Nc5 g6 Ne7 g7 Ng8 g5 Bc6 g6 Be7 f8N Ba4 Bc4 Nh6 g8Q Ne6 g7 Nf5 Nc3 Nh6 Nh3 Qd7 Qg1 Nf5 Ng6 Ne3 Nh4 Bc6 Qc8 Bg5 g8N Nd1 Be3 c1Q Bf2 Rb8 a8B Be7 Nf6 Ba4 Bb7 Bc2 Ng2 Nf8 Rh2 Bd8 Rh1 Bb6 Ne8+ Ke7 Nb5 Ba7 Rh2 Rg8 Rh1 Rg3 Rh2 Kf7 d6+ Kg6 d5 Kf5 Rh1 Kg4 Rh2 Kf3 Rh1 Qc6 d7 Qd2 d8B h4 d6 Qd3 d7 Ke2 Be7 Kd2 d8R Qdd7 Rh2 Rb3 Rh1 Qdd5 Rd6 Qd7 Re6 Q5c6 Ba6 Rb6 Bb7 Qcd5 Rc1 Rc6 Rh2 Rc5 Rb6 Bd3 Rc3 Bc2 Rg3 Q7d6 Rg5 Qd7 Re5 Qg8 Ne3 Qgd5 Rg2 Q5c6 Rg6 Nc3+ Ka1 Qcd5 Rge6 Nb1 Ng2 Q5c6 Ka2 Qcd5 Ba6 Qa8 Bb7 Rb2+
Rn1k1N2/1P1B1b2/R3qK1R/nRp5/1Np2Pr1/3r2B1/2NB2Qb/1Q2qB2 w - - 0 1 illegal: Other
8/pK1bk1q1/r3pnqN/b1P1B1PQ/N1n2r2/1Q3R2/3N1R1Q/2N1BBB1 w - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 a4 f5 axb5 c5 exf5 c4 d4 c3 h4 c2 hxg5 Bh6 Be3 c1Q Bd2 Qc4 Bc1 Qc5 dxc5 Bf8 Kd2 h5 Kd3 h4 Kd4 h3 f4 h2 g4 Nh6 b4 Qd6 f6 Ng8 g6 Ba6 b6 Qc7 b7 Qa5 g5 Qa4 d6 Qc6 f5 Kd7 f7 Rh5 g7 Nf6 g8N Qa4 Be3 Kd8 d7 Nd5 f6 Nc3 Ne2 Bg7 f8Q+ Kc7 d8B+ Kd7 Qf7 Qb3 b5 Qc2 b6 Rh3 Nd2 Bh8 Ra3 Nb5+ Kd5 Nc6 b8Q Rg3 b7 Rf3 Nh6 Qg6 Qb3 Rh3 Bg1 Nd6 Nc1 Ne5 Ba5 Ne4 Bb4 Qg7 Qh5 Bb5 f7 Nc4 f8B Qg6 Bg7 Rc3 Qg3 Rf8 Be5 Rf4 b8N+ Kd8 Nd7 Nf6+ Ke6 Rc2 Nb6 Ra2 Na4 Ra1 Qbd1 Bg7 Rf3 Ra3 Qb3 Bc6 Nb2 Ra6 Na4 Bh8 Nb1 Ke8 Be1 Bg7 Nd2 Bh8 Bgf2 Kd8 Rg1 h1Q Rg2 Qg7 Bg1 Qh3+ Qhg4 Qh5 Rgf2 Qhg6 Qh5 Ne8+ Bf6 Qf8 Qc3 Bd7+ Kd5 Bg7 Qb3 Qh8 Ba1 Bc3 Qgh2 Ba5 Bf6 Qhg7 Be5 Bg4 Nb6 Nf6+ Kc6 Bd7+ Kb7 e6 Na4 Ke7
2b4K/7R/p6P/2N4p/1R1nBPn1/N3rB1Q/BQNQnk1b/2Bb1N1q w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 f5 exf5 b4 h4 g6 h5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 hxg6 h5 g4 a6 g5 Rh6 gxh6 Ra7 Qe2 Rc7 Qd3 Rc6 Qd2 Rf6 Qd6 Rf7 Qd4 Rh7 Qd1 Rh8 Kd2 e5 Kd3 Ke7 Ke4 Kf6 b4 d6 f4 Qe7 c4 Qd7 g7 Qe8 c6 Bd7 c7 Bc8 c5 Ne7 g8B Nd7 b6 Qf7 b5 Nd5 c6 Qe6 b7 N7b6 b8N Qf7 Qd2 Na4 b6 Qe6 b7 Ne3 Na3 Be7 Nf3 Qf7 Bg2 Rh7 Rb1 Rg7 Rb4 Rh7 Rg1 Bd8 Nh2 Qg6 Nf1 Ng4 Ba2 Re7 Bf3 Re8 Kd5 e4 Rg3 e3 Nd7+ Ke7 b8N e2 Nc5 e1N f6+ Kf7 Rg2 Qb1 Rg1 Kg6 f7 Kf5 f8Q+ Bf6 Qg7 Bh4 Qgb2 Nc3+ Kd4 d5 Rg2 Ne3 Rg7 Bg3 Rh7 Bh2 Be4+ Kg4 Bf3+ Kh3 Be4 Rf8 Ke5 Re8+ Kf6 d4 Kg7 d3 Bf3 Re5 Kh8 N1c2 Be4 Ne2 Bf3 Bd7 c8B Ncd4 c7 Ng4 Nc6 Re3 Bb7 Be6 c8Q Bf5 Qe1 d2 Qd7 d1B Qed2 Kh4 Qe6 Qa1 Qeb3 Bc8 Ba8 Nb5 Nd4 Qb1 Ndc2 Nbd4 Bae4 Kh3 Qdd3 Qa1 Nd2 Kg3 Nf1+ Kf2 Qe6 Nf6 Qh3 Ng4 Qb1 Qc3 Qb2 Qe1 Qdc3 Ne5 Qd2 Ng4 Ng3 Qg1 Nf1 Qh1
B1nr2qQ/1RR3Q1/k2n1p1b/4P1Br/q2K2Np/n5BP/3Q2R1/3R2NQ w - - 0 1 legal: proof: b4 c5 bxc5 b5 cxb6 g5 c4 e5 a4 g4 d4 g3 dxe5 Qf6 c5 Qh4 fxg3 Qg5 g4 Qd8 g5 Ba6 Nc3 Bh6 Nb1 Bb5 axb5 Bf8 Kd2 a5 Ke3 h5 g4 d5 b7 Kd7 c6+ Kc7 e6 Kb6 g6 f6 c7 a4 c8Q h4 g5 a3 h3 a2 e7 Bh6 e8Q Qe7+ Kd4 Qc7 e4 Qc2 g7 Na6 b8B Qh2 g6 Ra7 Nc3 Qc7 Qb7+ Ka5 b6 Rh7 Bg5 Qg3 Rc1 a1N Qd2 Nc5 Bg2 Ne7 g8R Qh2 g7 Ra8 Bg3 Rh8 e5 Rd8 Rc2 Ne4 Nd1+ Nc3 Qf8 Nc8 Nf2 Rh7 Qc6 Ka6 Ng4 Ne4 Qfe8 Ned6 b7+ Ka7 Bf3 Qg2 b8R Rh8 Rc1 Rh7 Rd1 Rh8 Qcc1 Ka6 Rb7 Rh7 Rh2 Rh8 Rf8 Rh7 g8Q Nc2+ Kc3 Na3 Qg7 Rh8 Rff7 d4+ Kd3 Rh7 Rfc7 Rh8 Bc6 Qd5 Rg2 Qg8 Rb3 Rh7 Ba8 Rh8 Rbb7 Rh7 Ke2 d3+ Ke3 Rh8 Kd4 Rh7 Qa2 d2 Qaa1 Qb3 Qeh8 Qg8 Re1 d1Q+ Qd2 Qc2 Rd1 Qa4+ Kc5 Qe4 Rc1 Qc6+ Kd4 Qb5 Ne2 Qa5 R1c5 Qb5 Qh1 Qa4+ Rc4 Qb3 Ng1 Qa4 Qf7 Bg7 Qd7 Qc6 Rc1 Rh5 Rd1 Bh6 Qdg7 Qa4+
3Q4/k3P1NN/1pr1K3/1q3Q2/bn3qR1/p2rRn2/1R1BBBPR/2Qq2B1 w - - 0 1 legal: proof: h4 d5 a4 g5 hxg5 e5 f4 d4 fxe5 d3 cxd3 Qd6 d4 Qf6 d5 Qd8 a5 b6 a6 Qf6 Rh3 Qc6 Rh1 Qb7 axb7 Bc5 Nh3 Bb4 Ng1 Bf8 Rh5 a5 Rh6 a4 Rh1 Bb4 b3 Ba5 b4 Ne7 bxa5 Ng8 Kf2 Kd7 Kg3 h5 Kf4 c5 Kf5 Kc7+ e6 h4 d4 a3 e4 c4 e5 h3 a6 c3 d6+ Kc6 d7 c2 d8B h2 g6 f6 g7 Rh6 d5+ Kc5 a7 Rh8 d6 Nd7 b8B Rh4 e7 Rh5+ Ke6 f5 e8R f4 Nf3 Ngf6 g8R Rh6 Nd4 f3 Be2 f2 Rg4 f1Q Bd2 c1Q Nc3 Bb7 Nd5 Nh7+ Nf6 Bf3 Rb1 Be4 Nf5 Kc6 Rb2 Kb7 Ng7 Qb1 Qc1 Qf4 Bbc7 Nb8 d7 Na6 Be7 Bf3 d8Q Qd3 Bc5 Nb4 Bf2 Qb5 Qd3 Rb8 Qf5 Rd8 Bd6 Bc6 Bdc5 Rd3 a8Q+ Kc7 Qd8+ Kb7 Bg1 Ka7 Bcf2 Bd7+ Kf7 Bc6 e6 Ng5+ Ke7 Nf3 Nh7 Ba8 Kf7 Bb7 e7 Rc6 Rh8 Rc2 Ke6 Bc6 Bfe3 Be8 Bgf2 Rc5 Re1 h1Q Bg1 Rc7 Bef2 Rcc3 Bf1 Rc2 Re3 Rc7 Be2 Rc5 Bh2 Qd1 Bhg1 Rc6+ Qd6 Qa5 Ng5 Rc4 Qd8 Ba4 Rh2 Qb5 Nh7 Rc6+
2b1Nk1B/r3p1R1/N1K5/1Q4Q1/n1n1RP2/Rr1B1R2/2PQq1Np/1q2N1q1 w - - 0 1 legal: proof: a4 c5 d4 b5 dxc5 f5 axb5 f4 f3 Bb7 e3 Ba6 exf4 Bc8 g4 g5 fxg5 Qb6 h4 Nh6 g6 Nf5 g5 Kd8 h5 Ke8 f4 Qd8 h6 Bg7 hxg7 Nh6 Qd6 Ng8 Qd3 Bb7 Qd1 Bc8 Kf2 h5 Ke3 a5 Kd4 d5 b4 a4 b6 a3 b7 h4 c6 h3 Kc5 h2 b5 d4 c7 d3 b6 d2 Nc3 a2 Nf3 Na6+ Kc6 Rh3 b8N Ra7 b7 Rh8 Nd5 Rh4 Bb2 Nc5 Ne1 Na6 Bd3 Bf5 c8N Rh7 Ne3 Be6 N3g2 Qd4 Nd6+ Kd8 Ne8 Nh6 g8Q Qe5 g7 Bf5 g6 Nc5 Na6 Bc8 b8Q Nf5 Qb5 Qe2 Rf1 Qe3 Rf3 Nd6 Qc1 d1Q Qd2 Na4 Qgd5 Qb1 g8R Rd7 g7 Rh3 Qg5 Ra7 Rf8 Qe2 g8R Nc4 Rf5 Rg3 Bh8 Rh3 Rg7 Rg3 Re5 Rh3 Nf6 Rg3 Ng4 Ke8 Nf6+ Kf8 Ne8 Rh3 Re4 Rg3 Ne3 Rh3 N1g2 Qg1 Ne1 Rg3 N3g2 Rh3 Rb1 a1Q Rb3 Qb1 Ra3 Rg3 Rf2 Re3 Rf3 Qed1 Be2 Rb3 Bd3 Qe2
KN6/BpR1B1qk/q1R3b1/1BPPp2N/5Q2/RQr1n3/3n1b2/1Q2BQb1 w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 d5 cxd5 c5 exf5 c4 d4 Na6 b4 Nb8 bxa5 Ra6 Be3 Rc6 Bc1 Rc5 dxc5 Be6 Bg5 Bd7 Bc1 Bc8 Ke2 Kf7 h4 g5 f4 Kg7 a4 c3 Kd3 e6 Kc4 g4 Kb5 c2 a6 g3 f6+ Kh7 f7 g2 h6 Qd6 a7 Qc7 a8Q Qd7+ Kb6 Qc7+ Ka7 Na6 f5 Qd7 h5 Nb4 f6 Qc7 a5 Qh2 a6 Qd6 Na3 Qc6 Nc4 Qd6 Nb6 Be7 f8B Qh2 f7 Qh3 Bd2 c1Q Be1 Qha3 Nd7 Qf4 Bb5 Qg4 Qb8 Qc4 Nh3 g1B Qb3 Qa5 Ra3 Bh4 Nf4 Nd3 Be7 Nf6 Qe5 Nb2 Kb8 Qd3 a7 Qa6 a8R Na4 Qa1 Qf5 Qab1 Ng8 f8Q Nb2 Bf6 Ne7 Rh2 Qa4 Ra6 Rg8 Ka8 Rg3 Nb8 Rh3 Re2 Qb4 Rc6 Qc2 Rf2 Nf5 Bd8 e5 Bb6 Na4 Ba7 Nb2 Qf7+ Kh8 h7 Qa4 Rg2 Bd4 Rg7 Qg2 Qf6 Qg6 Rgc7+ Qg7 Qg5 Qa6 Qg2 Qd7 Qf1 Kg7 h8B+ Kg8 h6 Rc3 Qa1 Bg1 Nh5 Ne3 Qb1 Nbc4 Bf6 Qg7 Be7 Bhf2 h7+ Kf7 h8Q Nd2 Ng3 Bf5 Qh2 Kg8 Nh5 Kh7 Qf4 Bg6
bBR1b1N1/1p2QBP1/R1BbP3/1qQNR3/3r4/2p1B1q1/K3k1r1/2n1N2N w - - 0 1 illegal: Other
4QRnk/5KN1/b2p1R2/B1nb4/Nbq2PP1/7p/BR1B3Q/QbR1Q1r1 w - - 0 1 illegal: No proof kernel
3R3R/5rB1/1pPrN1RB/K6k/bBRb2q1/1BQQ1Qp1/b3Pb2/5n1N w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 e5 f4 d5 fxe5 c5 cxd5 c4 b4 Be7 bxa5 Nd7 d4 Nc5 dxc5 Bf8 Kd2 g5 Kc3 f5 Kb4 Kf7 a4 g4 h4 c3 a6 c2 d6 f4 c6 g3 a5 f3 e6+ Kf6 e7 f2 e8Q Bf5 h6 Be7 h7 Qb8 a7 Bf8 h5 Be4 a6 Qd8 h6 Bg7 d7 Bd3 Nf3 Bg6 Qd3 Qe7+ Ka5 Rc8 d8R Ra8 Nbd2 Be4 Ra4 Bf5 Qh5 Be6 Ng5 Bc4 Nde4+ Kf5 Qhf3+ Kg6 Bh3 f1B Ne6 Bb3 Rc4 Nf6 Nf2+ Ne4 Ba3 c1B Bb4 Re8 h8B Rf8 h7 Bd4 Bg7 Qh4 h8B Qg4 Bh6 Kh5 B8g7 Rf7 Rh8 Rd8 a8Q Ba3 a7 Rd6 Qg8 Nd2 a8R Ba2 Rd8 Bg2 Qgh7 Nf1 Qc3 Bc1 Qhd3 Bce3 Rh2 Bb3 Nh1 Ba2 Qf2 Be4 Qf3 Bf2 Bg2+ Kg6 Rh4 Bf5 Rh5 Be4 Rf5 Bd5 Rf6+ Kh5 Rg6 Be4 Qf6 Bf5 Bd5 Be4 Qff3 Bf5 Qdd2 Bc2 Qdd3 Bd1 Rc5 Ba4 Bb3+ Be5 Rc4 Bf6 Qde3 Bd4 Qed3 b6+
r7/RQQPn2R/P1p1K3/NQ5N/pBQ1nrR1/BR2bn2/1q4Bk/n7 w - - 0 1 legal: proof: b4 a5 g4 b5 a4 f5 axb5 h5 gxh5 d5 e4 d4 exf5 d3 b6 Nd7 b5 Ba6 bxa6 Qc8 cxd3 Qd8 d4 Nb8 d5 Rh6 Bh3 Rh7 Bf1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 d4+ Ke4 f4 g5 h4 e5 d6 g4 d5 g3 d7 g2 h6 a4 h7 Qg5 d8Q Qf6 b7 Qg5 h5 Qf6 h6 Qg6 d6 Nc6 b8R Nce7 d7 Qh5 f6 Qf7+ Qd5+ Kf5 Nd2 Kg4 f5 Kg3 Rb3+ Kf2 Nh3+ Ke1 Nf4 Kf2 Nh5 g1N Ba3 e4 Bg2 Nf3 Rag1 Qg6 f7 e3 f6 e2 Qb5 Nc6 Kd5 e1N Nc4 Nd2 Ke6 Rc8 Na5 Bd6 f8R Qb1 f7 Nge7 Rg8 Qa1 f8B Ra8 Rg4 Rg8 h8Q Nef3 h7 Nb4 Rc1 Qb2 Qc3 Ne4 h8Q Nc2 Qcc4 Na1 Qc8 Rg7 Qcb7 Rf7 Qhe5 Bc5 Rb1 c6 Qec7 Be3 Rhh4 Ng8 Bfb4 Ne7 Rd3 Nb3 Bd2 Qh8 Qb7b6 Qf8 Ng7 Ne5 Rh7 N5g6 Qbb4 Na1 Nh5 Qg7 Qba7 Qh8 Qbb8 Ne5 Rb7 Kg1 Rdb3 Rf5 Bdb4 Nf3 Qac5 Rf7 Ra7 Rf4 Q5b5 Kh2 Q8b7 Qb2
BB1b1Rb1/bnpN4/1BRRq1Q1/Q1P1rP2/K1B5/2p3N1/2bR2Nr/k7 w - - 0 1 illegal: Other
1qk5/Rr1r1p1K/1B1pN3/BN1N1Q1R/1P1PBQ2/4n3/q2bB2r/3N2Qq w - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 g5 b3 c4 bxc4 b5 h3 h5 a3 b4 axb4 Bb7 Ra2 Be4 Ra1 Bg6 Bb2 h4 Bc1 Bh5 Ra6 Ke7 Ra1 Na6 gxh5 g4 Ra4 g3 Na3 Nc5 Nb1 Ne4 Ra6 Nf2 Ra1 Ng4 hxg4 Ke8 e4 a5 Ke2 h3 Ke3 d6 Kf4 Kd7 h6 a4 g5 g2 g6 h2 c5 a3 c4 a2 e6+ Kc8 e7 Ra3 Kg5 Rd3 h7 Kb7 g7 Kc8 e5 Rh3 e6 Rc3 c6 Nf6 Kh6 Re3 e8B Be7 g8Q Qc7 c5 Kd8 Nf3 g1R Qg4 Nd7 Qf4 Bf6 e7+ Kc8 Be2 Rg3 Ng5 Rd3 Ne6 Qb7 c7 Rhg8 h8B Bb2 Bf6 Nb6 Bc6 Rb3 e8N Na8 Qg1 R3g5 Be4 Rbg3 Nc3 Qa6 Nd1 Qa3 Bd8 Re3 Kh7 Nb6 Nf6 Qa7 Nd5 Nc4 d3 Reg3 Be3 Bc3 Bf2 Qb8 Be3 Kb7 c8N Rg2 Ba5 Bd2 Na7 Rd8 Nb5 Kc8 c6 Rd7 Beb6 Ne3 d4 Rg8 c7 Re8 Rb1 a1Q Rb2 Ree7 Ra2 Kb7 Ra3 Qa2 c8Q+ Ka8 Qh8 Kb7 Qhf6 Kc8 Q6f5 Rb7 Bc7 Rd7 Bab6 Bc1 Ra7 Bd2 Ba5 Rf2 Bcb6 Rg2 Qgf1 Qa1 Rg1 Rf2 Rg5 h1Q+ Rh5 Qa2 Qg1 Rh2
r1kN2r1/5PpB/1rr1r3/n1PBNQ2/2bRBRp1/1R2K3/q2R4/QN2B3 w - - 0 1 illegal: Other
2N3n1/2k1B1pq/2b4N/4P3/1Q1N2KR/qBp2nBR/n1Q2PR1/R3Bqb1 w - - 0 1 legal: proof: d4 h5 c4 a5 g4 b5 gxh5 e5 b4 f5 a4 f4 c5 f3 c6 Ke7 exf3 e4 f4 Kf7 axb5 a4 b6 Ra7 b5 Ke8 f5 Rb7 cxb7 Rh6 Ba3 Re6 Bc1 Re5 dxe5 Qf6 Be2 Qe7 Bf1 Qd8 Ke2 d5 h4 Kd7 f6 c5 f7 d4 h6 e3 Kf3 e2 h7 e1Q h8N a3 h5 a2 h6 c4 h7 d3 Nd2 Nf6 Ne2 Nc6 b8R Na7 b7 Ne4 b6 Nd6 Kg4 Nab5 Rb1 a1Q Ne4 d2 Qc2 d1N Rg1 Qb2 Rg2 Qec3 Ra1 Qbb4 Bf4 Ne8 Nd6 Qe3 Rba8 Qc1 R8a3 Qb3 b8B Be7 f8B Nd4 b7 Bg5 Nhf7 Nc3 h8R Na2 Rh4 Qe1 Bh2 Bf4 Be7 Qd3 Bc7 Qh7 b8Q Bb7 Rah3 Bc6 Qbb3 Nf3 Nh6 Qa8 Nc8 Qa3 Nd4 Qec1 Bd3 Qf1 Ba5 Bg3 Bd2 c3 Be1 Kc7 Qb4 Bf4 Bc4 Bg3 Qg6 Bf4 Bb3 Nf6+ Kf5 Ng8 Kg4 Be3 Qc2 Bg5 Rh5 Bh4 Bf4 Bg3 R5h4 Bh2 Bg3 Bg1
1NR1q3/1B1N2K1/2PR2p1/Q2Q2r1/2R5/B1p1Qn1q/Prbr2r1/1kN1Q1R1 w - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 f5 e4 b5 exf5 c5 c3 a4 Qd2 e6 Qd1 c4 b3 b4 bxa4 b3 a5 Bb4 cxb4 Na6 Kd2 Nf6 Ke1 Nc5 dxc5 Ng8 Kd2 Ke7 Ke3 Kf6 Kd4 d5 h4 b2 f4 c3 c6 g6 b5 Rh6 a6 Bd7 b6 Rh7 a7 Re7 h6 Rh7 h5 Qe7 b7 Rf8 b8N Qf7 a8Q Rc8 Nd2 b1R Rh4 Re8 Ngf3 Rc8 Qe1 Qf8 Ba3 Ne7 Qa5 Rh8 h7 Rc7 h6 Ra7 Ne5 Rb2 Nb3 Qe8 Ba6 Rb7 Qe3 Rg2 Nc1 Rbb2 Bb7 Rf8 h8R Qc8 Kd3 d4 Ke4 d3 h7 d2 Rg8 d1R h8R Rf7 Rd8 Rdd2 Rg4 Rh7 Qe1 Rh5 Rhf8+ Kg7 f6+ Kh6 f5 Rg5 f7 Kh5 f6 Nf5 Bc5 Nh4 Ba3 Nf3 Rg8 Kh6 f8Q+ Kh5 Qfc5 Kh6 Ned3 e5 f7 Bf5+ Kd5 e4 f8Q+ Kh5 Qfd6 e3 Rc4 e2 Qe3 Kh6 Rh8+ Kg7 Qdc5 Kf6 Kd6 Be4 Qd5 Qh3 Ne5 Kf5 Ke7 Bd3 Kf7 Bc2 Qd1 e1Q Rd6 Qe2 Kg7 Qe1 Rc8 Qe2 Qf2 Qe4 Rb1 Kf4 Qg3+ Ke3 Ned7 Qe8 Qh1 Rd4 Qg1+ Kd2 Qe3+ Kd1 Ra1 Rdd2 Qgf2 Bb3 Qfe1+ Kc2 Ne2 Ba4 Rd1 Bb3 Nc1 Ba4 Q1e2 Bb3 Rg1 Kb1 Qe1 Bc2
4qqrn/PNQN3R/1q1Q4/6P1/NB4K1/RRb2R1B/B3ppq1/1b3k1N w - - 0 1 illegal: No possible last move, all moves rejected
2q2r1R/4b2N/2RQ3p/2r1RB1P/2qPp3/1Q2rkB1/K2Q2qR/N2rB2Q w - - 0 1 legal: proof: f4 d5 g4 b5 a4 f5 axb5 e5 c4 e4 cxd5 Nd7 d3 Ne5 fxe5 f4 e3 Bf5 gxf5 Ne7 Bd2 Nc6 Bc1 Nd4 exd4 Qb8 Nh3 Qc8 Ng1 Qd8 Kd2 Kf7 Kc2 g5 Kb3 a5 h4 c5 d6 a4+ Ka2 f3 b4 f2 h5 c4 b6 a3 d5 g4 b7 c3 b8B h6 f6 g3 b5 c2 b6 g2 b7 Rg8 d7 Rg3 e6+ Kg8 d6 Kh7 f7 Rg5 e7 Qc7 e8R Re5 d8R Re6 d7 Ra7 Nh3 g1Q Rh2 Qg8 Bd2 c1R Be1 Qc6 Nd2 Bd6 f8Q Qg6 Nb3 Be7 Bg3 Qc8 b8Q Rc5 Rc1 Rf6 Na1 Ra4 Bg2 f1Q Qbb3 Qg4 d4 Qc4 Qd2 Ra8 Rc3 Rf3 Bf1 Rd3 Qf3 Re3 Ng5+ Kg7 Qh1 Kf6 Bh3 Kf5 Nh7 Rb8 Rh8 Ra8 Rde8 Rb8 Bgf2 Kf4 d8Q Qg2 Qd6+ Kf3 Bg3 Ra8 Bf5 Rb8 Kb1 a2+ Kb2 Bd8 Ka3 Bh4 Re5 Be7 Nc2 a1R+ Kb2 Rd1 Na1 Q8g8 Ka2 Rf8 Rc2 Rd5 Rc3 Qc8 Rc7 Rc5 Rc6 Qc4
2n2rBk/1pQ1Q3/1P1R2r1/1bN1p1n1/RRN5/6N1/QpqN3P/B3Kb1R w - - 0 1 illegal: Other
8/2q3BQ/p2prQPQ/Nk1BnR2/R1r4N/Q1b3Pb/pKB5/rR3R2 w - - 0 1 illegal: Other
kN2n2R/r1QNKp2/p2P4/1Qr5/PpBR1qn1/N5Q1/2QNn2B/R3b3 w - - 0 1 legal: proof: f4 e5 fxe5 d5 b4 c5 bxc5 h5 g4 d4 gxh5 d3 c6 b6 cxd3 Ne7 d4 Bb7 cxb7 Ng8 d5 Ba3 Nc3 Bc5 Nb1 Bf8 Kf2 Kd7 Kf3 Kc7 Kg4 g5 Kf5 g4 e4 b5 a4 b4 d4 a6 h4 g3 d6+ Kb6 d7 Ka7 h6 g2 h7 Bc5 h5 Qa5 d8Q Bf8 h6 Bg7 d5 Qb5 d6 Qa5 Bc4 Nd7 b8N Nf8 Nf3 g1N Nfd2 Qb6 e6 Bd4 e5 Be3 e7 Qb5 e8N Qc5 Nf6 Ne2 Qc2 Qb6 e6 Ng1 e7 Bf4 e8Q Qc6 Rh4 Qc7 Na3 Ng6 Qb5 Ne5 Nfd7 Bg3 Rd4 Be1 Bb2 Qb7 Qc7 Nf6 Bc3 Rc8 h8Q Ne2 h7 Neg4 Qg7 Ne8 h8R Nh2 Qg3 Ng4 Qcc5+ Qb6 Kg5 Kb7 Kf5 Ra7 Qc7+ Ka8 Kg5 Qb7 Bb2 Qe4 Bc1 Nh2 Bb2 Ng7 Kf6 Qf4+ Ke7 Ne8 Re4 Nc1 Be5 Ne2 Rd4 Ng4 Qgc3 Qf3 Bh2 Qf1 Qg3 Qf4 Qcb6 Rc6 Qc7 Rc5
4k1q1/2nNB3/1r1KR1Pp/2Q2pqQ/1N1NNPB1/QQ3pr1/5n2/b4RR1 w - - 0 1 illegal: Other
8/N1rN1Q1P/8/q2QK3/r1q1b1BQ/P1p1BRnN/p4p1Q/k1BR1b1N w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 a5 g4 b5 gxh5 a4 a3 b4 Qb3 Nc6 Qc2 Na7 Qd1 Nb5 Ra2 b3 Ra1 Bb4 axb4 a3 Qc2 a2 Qd1 Na3 bxa3 Rh6 Bg2 Rh7 Bf1 Rh8 Kf2 Ke7 Kf3 c5 Ke4 g5 d4 b2 h4 c4 d6+ Ke6 h6 g4 d7 f6 h5 g3 b5 g2 d5+ Ke7 b6 c3 d6+ Ke6 b7 Qe7 b8Q Rh7 d8Q Qg7 d7 Rh8 h7 Ra5 h6 Qf8 Rh3 Ra6 Rf3 Rc6 Nh3 g1Q Nd2 Kf7 e6+ Kg6 e7 f5+ Ke5 b1B e8N f4 e4 Rb6 Qh4 Bb7 d8N Qb4 Nc6 Ne7 Nf6 Bd3 Be2 Qf1 Na7 Ra6 Nd7 Rc8 h8B Nf5 h7 Ng3 Bf6 Bc4 Bg5 Rc7 Qb3 Bb5 Qd5 Qa5 Bd1 Qc4 Nf1 Qb6 Be2 Ra4 Be3 Qa5 Rd1 Nh5 Ng3 Ba8 Nh1 Ng3 Rff1 f3 Bc1 Bb7 Bge3 B7c6 Rd3 f2 Rfd1 Bb7 Bg4 B7c6 Kd6 Bb7 e5 B5a6 e6 Bc6 Qd4 Be4 e7 Bb5 Bh5+ Kf5 e8Q Bg2 Qg8 Bf1 Qdg7 Bc6 Bg4+ Ke4 Q7f7 Bd5 Bb6 Bb7 Rf3 Bc6 Bbe3 Bd5 Bcd2 Kd3 Ke5 Kc2 Bc1 Bb7+ Qd5 Kb1 Qf7 Ka1 Qb5 Be4 Qbd5 Rc8 Qd6 Rc5 Qdh6 Rc7 Qhf4 Nf5 Qh2 Ng3
B3Q3/1p3r2/npP4N/2nnQ3/1kNnp1BR/4RR2/PBQ2q1K/RB3b2 w - - 0 1 illegal: Other
rBNB4/1PP2QKp/p1r2R1p/4q3/2R1Rr1k/r2QN3/B1nnB3/RQ6 w - - 0 1 illegal: Other
8/RR1Np3/2Q1P2K/4N1P1/rp2pR1r/1B1nr1Bn/6RN/rkBQnN2 w - - 0 1 illegal: Other
r1K1b1BB/r1B1b3/B2Q4/nN2Q1Rq/n1RNQ3/QPbq4/2n1PrN1/3k4 w - - 0 1 illegal: No possible last move
1R1n3R/1N1NK3/kN1N1qB1/B7/1bbB1P1Q/Rn1n1P1B/q1r2Qb1/3q1r2 w - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 f5 cxd5 b5 a4 f4 axb5 f3 exf3 Bh3 f4 Bc8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 Ke5 Kb6 g4 a5 b4 h5 d4 c4 d6 h4 g6 a4 d5 c3 g5 e6 g7 h3 f3 a3 d7 h2 d6 a2 g6 c2 Qe1 Rh6 Qh4 Na6 Nd2 Nf6 g8Q Ne4 g7 Qc7 d8N Qc6 d7 Nd6 Ne4 Nc5 Be3 c1N Bh3 Ba6 Bd4 Nb3 Nb7 Ne8 d8B+ Nc7 Ned6 Qd7 Ne2 Rc8 Nc3 Rh5+ Kf6 e5 Qf2 e4 Qh7 e3 g8B e2 Bf7 e1Q Bg6 Qd1 Na4+ Ka7 Qh8 Ne6 Ba5 Nd8 Nb6 Nd3 Qh6 Rc2 Qg5 Bh6 Qgh4 Qf5+ Ke7 Bg7 Rb1 a1Q Rc1 Qa3 Ra1 Qb2 Ra3 Qa2 Nbc8+ Kb8 b6 Bc4 b5 Be5 Nc5 Rg5 b7 Rg1 Nb6 Ka7 b8N Rf1 Ncb7 Bh8 N8d7 Bg7 Rg1 h1B Rg5 Bg2 Rh5 Be5 Rh6 Bg7 Rh8 Bf8+ Ke8 Rc1 Na8+ Nbc5 b6+ Ka6 Nf7 Na4 Nbc5+ Kb5 b7 Rc2 Nab6 Bd6 b8R Be7 Nb3 Bb4 Nd6+ Ka6 Ke7 Nac5 Nc1 Ne1 Nd3 Nb3 N3c5+ Ka7 Na8 Nd3 Ncb7+ Ka6 Nab6 Qf6+
N1B2Q1q/1b1B3R/1K3Q1n/1R2rn1B/1PNk1rqr/3q1bP1/R1Q2b1R/6B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Ke3 c5 d4 a5 b4 f5 d6+ Ke6 g6 Kd5 e6 h5 d7 h4 g3 h3 g7 a4 b6 c4 b7 h2 e7 a3 e8B c3 Ra2 c2 Bh5 Ra5 Nf3 Qf6 d8R+ Bd7 Nc3+ Kc4 d5 Be8 d6 Ra4 d7 Rh7 Nd5 Qa1 Nc7 Qb1 Na8 Ra5 Bh3 Nc6 b8R Nd4 Rb5 Nh6 g8Q+ Kc3 Rdb8 Bc5 d8Q Bc6 Qf6 Bb7 Nd2 Bb6 Qgf8 f4+ Kf2 f3 Ke3 f2 Nc4 f1R Bc8 Bf3 Rb7 Rh8 Rc7 Bb7 Rh7 Rf4 Rg1 h1B Rg2 Ba7 Rh2 Bhf3 Bb2+ Kb3 Kd3 Ndf5 e4 Bf2 Qd2 Qd1 e5 c1Q e6 Qa1 Bd4 Qab1+ Rc2 a2 e7 a1Q e8B Qab2 Bed7 Q2a1 Rb6 Re5 Rb5 Rg8 Bc5 Rgg4 Be3 Rh4 Bd4 Qbc1 Ra2 Qa3 Bc5 Bg2 Be3 Qg4 Bb6 Bgf3 Bc5 Be1 Bg1 Bf2 Qe6 Re1 Qde2 Qh8 Qef6 Nd6 Qe4 Re3+ Kd4 Ndf5+ Kc5 Re2+ Qed4 Re7 Kb6 Re5 Qdc5 Kc3 Ne3+ Kd3 Qc2+ Kd4 Nc4 Qd3
bnQ4B/3n1b2/2KR2P1/R1Rn4/3PB1Rq/1q6/NQQ2bq1/Nr1NNkr1 w - - 0 1 illegal: No possible last move
1Q1bBRbN/1rq1R3/1P3BQ1/q1Q2q2/3RB1KP/3b1n2/3r1R2/nknB3N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 d4 f5 e4 a5 h4 g5 b4 c4 d6+ Ke6 b6 a4 b7 f4 d5+ Kf7 b5 a3 h6 Kg6 e6 a2 e7 c3 e8B+ Kf6 h7 Ke5 d7 c2 d6 Ra3+ Bd3 Kd4 e5 Bg7 e6 Qc7 d8R Bf6 e7 Rb3 d7 Na6 b8Q Nb4 Kg4 f3 Nh3 f2 Rh2 f1B Nd2 Kc3 Be4 Bd3 Nf1 Bb7 Qe2 Bd5 Qg2 Qa5 Bf4 Kb2 Re1 a1N Ng3 Na2 Bh5 Nc1 e8B Ne7 Nh1 Nf5 Be5+ Kb1 Nf4 Bg8 Ng6 Nd4 b6 Rb2 Qf2 Nf3 Qc5 Be7 Rc8 Bd8 Rf2 Ra2 Bf6 Rb2 Kf5 g4 Ree2 g3 Kg4 g2 Re3 Be7 d8R g1Q+ Qg3 Qf1 Rd4 Bd8 Ra8 Bf7 Ree2 Rf8 h8Q Bg8 Qb8 Rf7 Qh7 Rb7 Nh8 Na2 Qg6 c1Q B4c6 Qcc3 Re7 Nc1 Be4 Rd2 Kg3 Nh2 Bd1 Nf3 Kg4 Qc2 Qd5 Qc6 Qc5 Qc7 Rg2 Na2 Bea4 Ng1 Qa7 Nc1 Rc8 Qf2 Qb8 Qf1 Re5 Be7 Rf8 Qf2 Be8 Bd8 Re7 Qf1 Bg7 Qf7 Rf2 Nf3 Be5 Qd5 Bf6 Qf5+
BR4Q1/2BNkN2/P1bbr2N/1R1r3Q/1K6/R1rbNn1P/1n6/2qQQqn1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 c5 Kd2 b5 Kc3 e5 a4 g5 f4 c4 d6 e4 h6 g4 f6 e3 f5 e2 d7+ Kf7 a6 e1Q+ Nd2 g3 h3 g2 a5 Qb6 d8N+ Ke8 h7 Qh4 a7 Qd6 a6 Qe1 d5 Nd7 f7+ Ke7 Nf3 g1N Nh2 Qc6 f6+ Kd6 Ng4 Qe2 Bg2 Qf1 Ra3 Ne7 Qe1 Bb7 Kb4 c3 Nh6 Nb6 Nc4+ Kd7 d6 c2 Bd2 c1R Bf4 Nf5 Ne3 Nd4 Bf3 Rb8 a8R Nc4 Be4 Rg8 h8Q Rg6 Be5 Be7 f8Q Rc3 f7 Nb2 Qfg8 Ndf3 f8N+ Ke8 Bg3 Re6 Ndf7 Rd8 Rb8 Qc7 Qe5 Bc6 Nd7+ Bf8 Qh5 Qc8 Ka5 b4 Rh2 b3 Kb4 Qc7 Rd2 Qc8 Rd5 Qc7 Rdb5 Qc8 Nc5 Qc7 d7+ Ke7 Bh2 Qf4 Ng2 Qc1 Bc7 Nc4 Ne3 b2 Bd5 b1B Be4 Bd3 Bd5 Kf6 Be4 Nb2 Bd5 Rde8 d8Q+ Be7 Qd6 Rd8 Be4 Bf8 Qdd5 Ke7 Nd7 Bg7 Qb3 Be5 Qbd1 Bd6+ Nc5 Bd7 Bb7 Bc6 Ba8 Bg3 Nd7 Be5 Nf6 Rd5 Nd7 Bd6+
1QK5/q2n1PBB/3b1NBb/3N2Q1/N3b2B/1N2RRqP/2q2r1R/1r2rkn1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 b4 g5 b6 e5 Kb5 d5 c4 a5 h3 d4 h6 d3 f6 g4 f5 g3 h7 a4 b7 d2 c6 Ke3 c7 Kf2 Kb6 g2 b5 e4 c5 e3 f7 a3 c6 e2 f6 e1B Rh2 a2 Ne2 Ra4 Nbc3 Ra8 Na4 Qe8 Nd4 Qd8 Nb3 Qd5 Bd3 Qe4 Qg4 d1Q Bg5 Qb4 Bh4+ Kg1 Qg5 Qc2 Bg6 Bg7 f8R Bf5 c8B Be4 Kc7 Qa5+ b6 Bh6 Bcf5 Qa7 Kc8 Nd7+ b8Q Ne5 c7 Kf1 b7 g1Q f7 Nf6 Re8 Rf8 h8B Qg3 Bg7 Nfd7 Bh7 Rg8 Bfg6 Nf3 Rd1 a1R Rd3 Ng1 Rc3 Nf8 Rf3+ Bf2 Re5 Re1 Re6 Bd5 Ree3 Be4 Kd8 Rh8 c8N Rg8 Ncb6 Nd7+ Ke7 Rc8 Nd5 Rc6 Kd8 Rf6 Rc3 Rb1 Rfe3 Be1 Kc8 Rf2 Rf3 Qd2 Rce3 Qc2+ Kd8 Bc3 Kc8 Be5+ Rc3 Rd1 Nac5 Qb6 Rce3 Raa1 Qa8 Bd6 b8N Nf8 Nd7 Re1 N7f6 Nd7 Qb7 Qa7 Qb8 Bc7 Na4 Rab1 Qb7 Bd6+ Qc7 Qd1 Qb8 Qc2+
1Qn1n3/3k2N1/B1rBqB2/b2R1P1K/rQ1nBNN1/1rP3r1/4r1R1/N2bQ3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 g5 Kf3 d5 Kg4 a5 b4 e5 h4 d4 f4 d3 c3 d2 b6 a4 b7 e4 c6 e3 c7 e2 h6 e1N b5 a3 h5 a2 h7 Bh6 b6 Qf6 Bg2 Qf8 Nf3 Qf6 Nh2 Qd6 Na3 Bf8 h6 Ra7 Nc2 Qd8 Rg1 Ke7 Be4 Na6 b8Q Rb7 Rg2 Qd7 Kh5 Nf3 Qe1 d1R Ng4 Qe6 f6+ Kd7 f7 Bb4 Ba3 Ba5 Bd6 Rd2 Rd1 Re2 Na1 Ne7 Rd5 Rd8 h8N Nd4 h7 Rg8 Nc2 a1R Ng6 Ra4 h8B Rf8 Bf6 Rg8 Nge3 g4 Na1 g3 Ng4 Rf8 Nh4 Rg8 Nf5 Rg6 f8N+ Kc6 Rh2 g2 Ng7 g1R Rg2 Bd7 c8B Nc7 f5 Ne8 Nf2 Rg3 Ng4 Rc7 Ba6 Nc8 b7 Rf1 Qf2 Rb1 Ng6 Rb3 Nf4 Qe7 Qf3 Be6 Qf1 Kd7 Qe1 Rc6 Qa7 Bg8 Qc5 Qe6 b8Q Bf7+ Kh6 Bh5 Qcb4 Ree3 Nf2 Bd1 Ng4 Re2 Kg5 Nc7 Kh5 Ne8
RN1kB1Br/r1b1n1Q1/QB6/1Pb1N3/r3b1r1/Q3RBq1/1N2QPn1/2K2r2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 e5 d4 a5 Kd2 c5 g4 h5 d6 c4 d7+ Ke7 f6+ Kd6 g6 Kc7 g7 a4 f7 h4 b6+ Kd6 d5 Ke7 d6+ Ke6 b7 h3 b5 e4 g5 a3 g6 h2 Nc3 a2 Qe2 Ra4 Nf3 Ne7 g8B Na6 b8N Bb7 g7 Nc5 Bg2 Qc7 d8Q Nd3 d7 Qg3 Qc7 Ne1 d8Q e3+ Kd1 Ba8 Ne5 Be4 Bf3 Kf6 Rf1 h1R Qdc8 R1h4 Bh7 Rf4 g8B Rg4 Bg6 Ra7 Na4 c3 Q8b7 Ke6 Bb2 c2+ Kc1 Kf6 Bd4 Ke6 Qd3 e2 Nb2 Kf6 Bb6 Ke6 Rb1 a1R Qa6 Ra4 Ra1 Kf6 Rh1 Ke6 Rh3 Kf6 Kd2 c1R Ra3 Nc6 Ra2 Bc5 Ra1 Ne7 f8Q+ Kg5 Qe8 Kf6 Qa3 Nf5 Qed8+ Be7 Qac5 Nd3 Rh1 Rb7 Qc4 Ra5 Qdd5 Bc5 Qa7 Rg1 Qc8 Ke7 Qa4 Rc7 Qdc4 Rb1 Qcb7 Kd8 Be8 Rg1 Re1 Ra6 Rh7 Rf1 Qa3 Ra4 Qaa6 Nf4 Kc1 Ng2 Ba7 Rd7 Rd1 e1B Rd3 Ra5 Re7 Ra4 Re3 Rc7 Qe2 Ba5+ Nd1 Ne1 Nb2 Bab6 Rh7 Rcg7 Qf7 Ba5 Qf8 Rb7 Rc7 Ne7 Qg7 Bd6 Bd4 Bab4 Bb6 Bbc5 Nbd7 Ra7 Rb7+ Bc7 Rb8+ Nc8 Ra8 Qf4 Bgf7 Qg3 Nb8 Ne7 Bg8 Ng2+
bk2BR2/2n1r2N/Q4nP1/nK2b1rN/1BB4P/1Rr1RnN1/1q2Q2B/3R3n w - - 0 1 illegal: No proof kernel
kr2QnK1/4QR1P/1Rbq4/2n3b1/b4BB1/6B1/1N1P1bQr/b1nQ1RRN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 c5 b4 Kc7 h4 Kb7 e4 a5 b6 g6 b5 c4 d6 c3 e6 g5+ Ke5 c2 h6 f4 h5 f3 h7 a4 h6 a3 e7 g4 e8Q g3 d7 f2 Ke6 g2 Kf7 a2 e5 Be7 e6 Bc5 e7 Ra4 Nc3 Nc6 Bb2 c1N Be2 f1B Bg4 Be2 Nh3 g1B Nf2 Bh2 Rf1 Be5 Nh1 Rd4 Na4 Qc7 d8Q Nb4 Qc6+ Kb8 b7 Bd3 Qg2 Qd6 e8Q Na6 Qde7 Be4 Rg1 Ka7 b8R+ Bd7 Rb6 Nf6 Bc3 Bf3 Nb2 Bc6 Rb1 Rg8 h8R a1B h7 Bf4 Rf1 Rd3 Be5 Bg5 Bf4 Rh3 Bg3 Bf2 Bf4 Rg6 Rf8 Rh2 Rg1 Rgh6 Kg7 Nc5 Rf7 R6h3 Kh8 Rb3 Bg3 Nd5 Kg8 Nf4 Qdf3 Nce2 Rbf1 Bd5 Rc6 Nc1 Qd1 Nfe6 Bf4 Nf8 Bg3 Qb8 Re6 Ka8 b6 Ba4 b7+ Ka7 Ref6 Qe5 b8B+ Ka8 Bc7+ Rb8 Rb6 Bdc6 Bd6 Qf6 Bdf4 Qd6
bN6/1R2PnRr/b2Q2rr/R1Q3q1/1bPn2NB/1KN2N1b/2B1R2b/B6k w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 h4 Kf5 e4+ Ke6 b4 g5 h6 a5 c6 d5 h5 f5 h7 g4 c7 g3 b6 d4+ Kb3 g2 c4 f4 b7 f3 h6 d3 b5 f2 b6 d2 Nc3 Qe7 Rh2 Qf6 Bd3 f1B Bc2 Ra6 Nf3 g1B Re2 Nc6 b8R Bh3 b7 Bh2 Ba3 Qh4 Be7 Qg5 Bd8 Bb4 Ra4 Kf7 e6+ Kg6 e5+ Kh5 e7 Kg4 e8N Kg3 e6 Rb6 Nf6 Nd4+ Ka2 Rc6 Ng4 Rd6 Ra3 a4 Be7 Rd7 Bf6 Rf7 e7 Rg7 Kb2 Rg6 Ra1 a3+ Ka2 Bd7 c8Q Bb5 Qc6 Ba6 Qc5 Nb5 Kb3 a2 Qc1 d1B Qd2 Bg2 Qdd6+ Kh3 Rb1 a1R Ra8 Bh1 b8N Nd4+ Kb2 Ra4 Ra7 Ra3 Rb7 Ra5 Ra1 Rb5 Ra5 Rb6 Bb1 Ba4 Bc2 Bd7 Ka2 Qf4 Bh4 Qg5 Nf2+ Kg2 Kb2 Bh3 Ng4+ Kf1 Ka2 Nf6 Kb2 Nd7 Ka2 Ne5 Kb2 Rc8 h8R Nf7 Rh7 Rh8 Rg7 B1g2 h7 Bh1 Ne1 Kg1 Ka2 Be4 Nf3+ Kh1 Kb2 Re8 h8B Bc6 Ra7 Ba8 Rb7 Rg8 Qde5 Rbe6 Qed6 Rh6 Ka2 Rh7 Kb2 Reh6 Ka2 Nf5 Kb3 Nd4+ Ka4 Rf8 Na2 Nb5 Kb3 Nd8 Rg6 Rg8 Ba1 Nf7 Nc3 Nd4+ Kb2 Rgh8 Rg8 Rg7 Ka2 Rgg6 Rg7 R8h7 Kb2 Nc6 Kb3 Nd4+
1B2R3/1N3NNR/2Q2Kbb/rq1B4/1b3nBQ/3P3B/1RrP1Rnk/2n1n1r1 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 d5 h4 d4 hxg5 d3 cxd3 Qd5 Qa4 Qd4 Qd1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 g4 e5 b4 h5 f4 a5 g6 c4 f6 a4 g7 c3 f5 h4 b6 h3 f7 c2 g5 h2 b7 a3 f6 a2 b5 Rh6 b6 Nd7 Kf5 e4 b8R e3 b7 e2 g6 e1B Qf3 Be7 f8Q Rh7 f7 Rh4 Nc3 Rha4 Bb2 c1N Bh3 Rb4 Na4 Qe8 Nc5 Ngf6 g8B Bf2 Qh6 Ng4 f8N Rc4 g7+ Ndf6+ Nfe6 Rc2 Qh4 Nd5 Bh7 Bg3 g8B Qb5 Bg6 Bf4 Bh5 Bd7 Re8 Ra5 b8R Nge3+ Kg6 Ng2 B5g4 Bc8 Ng7 Bh6 Qe4 Bf8 Nf3 Ndf4+ Kf6 Bf5 Bd5 Bg6 Rb1 a1N Ne5 Ncb3 Rb7 Nc1 Rf1 h1R Rf2 Rg1 Bc3 Rca2 Qa4 Nc2 Rb2 Nce1 Rf7 Ra3 Bd4 Rc3 Ra7 Rc2 Nb7+ Kc7 Nf7 Bd6 Bc4 Bb4 Be5+ Kc6 Nbd8+ Kc5 Bb8 Kd4 Nb7 Qd5 Qc6 Qh5 Nfd6 Qb5 Ke7 Ke5 Bce6 Qb6 Bd5 Qb5 Ne6 Qa6 Nbc5 Nh5 Rc7 Qc4 Ncb7 Qb5 Nd4 Nf3 Nf5 Kf4 Ke6 Ra8 Rh7 Ra5 Re2 Nfe1 Ng7 Ba3 Nf7+ Bd6 Qd8 Kg3 Rf2 Kh2 Qh4 Nf4+ Kf6 Bb4
3q4/1rb2rQN/1R1QNn2/4P2k/Q1Q3R1/1bn1B1nn/BKPr3N/R1N2b2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 d5 Kc3 g5 b4 f5 h4 Kf7 e4 a5 c6 f4 h6 Kg6 b6 f3 e6 a4 b5 g4 e7 f2 e8Q+ Kf6 h7 d4+ Kb2 g3 e5+ Kf5 h5 d3 h6 g2 b7 d2 b6 Kg5 c7 Qd6 Nc3 Nc6 b8R Qd5 b7 Bc5 Bc4 f1B Ba2 Qd8 Rh4 Bb4 Nce2 Be6 c8Q Nd4 Qc4 Nf5 Qeb5 Ba5 Nf3+ Kg6 Rg4+ Kh5 Nh2 Nf6 Qbb4 Rf8 h8N g1N h7 Ng3 Ng6 Rf7 Nf8 Bd5 Ne6 Nh3 h8N Bc7 Ng6 Ra6 Ngf8 Rd6 Nh7 Rdd7 Qf8 Rde7 Qg7 a3+ Kb3 Rd7 Qe1 d1N Qb4 Nc3 Be3 Rd6 Nc1 Rb6 Ra8 Rb5 b8Q Rb7 Ra6 Bb6 Q8d6 Bc7 Neg5 Be6 Rb6 Bd5 Qa4 Be6 Kb4 Bd5 Bb3 a2 Ka3 Be6 Kb2 Bd5 Rb1 a1R Ne6 Ra3 Qa8 Ra5 Ba2 Rc5 Qaa4 Rb5+ Qcb4 Bb3 Ra1 Rd5 Qc4 Rd2
NnBbbn2/1Q6/Q3rQ1P/PRnR1N2/3BN1b1/1Q1r3k/4rRq1/1K1R1b2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 h4 c5 a4 b5 d4 f5 Kd2 g5 Kc2 c4 d6 Ke6 d5+ Kf7 a6 g4 d7 g3 a7 g2 h6 Kg6 a5 f4 h7 b4 d6 f3 h5+ Kf7 e6+ Kf6 e5+ Kf5 e7 Kg4 e8Q c3 h6 Kg3 e6 f2 e7 Na6 Rh5 Nb8 Nf3 g1R Nbd2 b3+ Kb1 b2 Nd4 Rg2 Ra2 Rh2 Rb5 Nf6 Bh3 f1B Qb3 Re2 Qef7 Kh4 e8R Be7 Ne4 Rf8 h8R Nh7 Be3 Bf6 Re7 Re8 Ree5 Re6 Red5 Qg8 d8Q Nf8 d7 Qg2 Qb6 Bg5 Ra1 Bd8 Qa6 c2+ Ka2 c1N+ Kb1 Bf6 d8Q Nd3 Qfb7 Nc5 Rg8 Bg5 Qf6 Bd7 Rg7 Bc6 Rf7 Be8 Qg7 Bd8 Rf2 Bh5 Bf5 Bg4 Qh8 Kh3 Qf6 Re7 Bc8 Re5 Ka2 Re6 Rd1 b1B+ Ka1 Bd3 Nf5 Bc4 R5d3 Bd5 Kb1 Bc6 Rd5 Be8 Bd4+ Re3 Nc3 Rd3 Ne4 Nc6 Bd7 Rc8 a8N Nb8 Re2 Rcc6 Rf2 Re7 Bc8 Rce6 Nc3 Re2 Ne4 Re6
6Q1/2bN1Qn1/2N4P/P1N2rr1/1KR1rq1R/B2nBn1B/B2b2bQ/N3k1r1 w - - 0 1 illegal: No possible last move
2K1Q1b1/R1R3nb/PN1r1Q2/3Q1B2/1n3Qn1/k1r1bq2/P1rR2bR/3BBN2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 b5 d4 h5 f4 c5 d6 h4 a6 h3 g6 e6 g7 h2 d7 c4 f6 c3 d5 c2 f7 Ne7 Kd6 e5 g8Q e4 g5 e3 g6 e2 g7 e1R f5 Nbc6 f6 Na5 Nf3 Rh3 Bd2+ Ka4 Na3 b4 Rc1 b3 Bd3 b2 Nc4 b1B Nb6+ Ka3 Bf5 Rf1 Be1 Rh4 Nd2 Rf2 Nf1 Rc4 Qg4 Rc3 Qf4 Qe8 d8R Nc4+ Kc7 Be6 Rd7 Rd8 d6 Ne5+ Kb7 Rg2 Rc7 Rf2 d7 Ng4 Rd1 c1N Rd2 Nd3 Qh8 Rc4 g8B Bh6 f8Q Qh5 f7 Rc3 Qf6 Nb4 Qe8 Qh3 f8R Qf3+ Qe4 Bf4 Rf7 Be3 Qd5 Be4 Qd4 Bb1 Qf4 Be4 Rg7 Bf7 Bgh7 Bg8 Bhg6 Bb1 Bc2 Re2 Bd1 Nf5 Rh7 Ng7 Bf5 Rc8 d8Q Rc2 Rd4 Red2 Qf6 Rc3 Rd3 Rc2 Rd4 Rd8 Rd2 Rd7 Kc8 Rd6 Rg1 h1B Rgg2 Ne5 Rge2 Ng4 Reh2 Bg2 Rc5 Nh5 Ra7 Ng7 Rcc7 Rb2 Be6 Bbh7 Bf5 Rbc2
3r3b/1N1P3n/B1n1Q3/3Q1Rq1/NBrnr2b/RK1Q3R/1Q2PN2/2Nbbk2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 f5 Kc2 a5 h4 c5 b4 g5 h6 f4 d6+ Ke6 d5+ Kf5 h5 Kg4 b6 Kg3 d7 Kf2 h7 c4 e6 c3 b5 f3 d6 a4 e7 g4 e8Q g3 h6 g2 b7 a3 b6 a2 Kb3 c2 Rh3 Ra7 Bd2 c1B Qe6 Be7 Bb4 Bf8 Nd2 Qe8 d8N Nc6 b8Q Rc7 b7 Be7 Qa8 Bd7 b8N Qh5 Na6 Nf6 Nb7 Qg5 Nac5 Rd8 h8Q Nh7 Na4 Bb2 Qa5 Be8 Qad5 Bg6 d7 Bc2+ Kc4 Bc3 Nb3 Be1 Q1d3 Bd1 Qb2 Bf6 Nc1 Bh8 Rb1 a1N Rg3 Nc2 Kb3 Bd2 Nh3+ Ke1 Nf2 g1B Bg2 Bdc3 Bh1 Kf1 Ra1 Be1 Rh3 Bh2 Ra3 Bg3 Rh4 Rcc8 Rf4 Bh4 Rf5 Rc7 Ng4 f2 Bf3 Kg1 Bg2 f1R Nf2 Nf8 h7 Rcc8 Ne4 Rf4 Nf2 Re4 Bf3 Kf1 Bh1 Bf6 h8R Bg7 Rh6 Bh8 Bf3 Nh7 Bh1 Bg3 Rh3 Bh4 Qa5 Rd4 Bd5 Re4 Bc4 Ne7 Bb5 Rcc4 Ba6 Nc6 Qad5 N2d4+
R1Bnn2K/3P2R1/n2qbr1k/r5NN/Q2N1Bb1/2P3Q1/r2b2N1/1rR1Q1R1 w - - 0 1 illegal: No proof kernel
NB2QQB1/nP1Qbn2/b1q2R2/1B3rb1/1N1nk1N1/3R3K/1rQnP1r1/N7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg2 c5 h4 a5 d4 f5 b4 g5 b6 c4 b5 c3 e6 Kf6 d6 f4 e7 Kf5 e8B a4 h6 c2 h7 a3 d5 a2 h5 g4 d7 g3 h6 f3+ Kh3 f2 b7 g2 b6 Bb4 d6 Bd2 Nf3 g1B Ne5 Bb4 Ng4 Bd2 Na3 Bh2 Bg2 f1N Bd5 Ba5 Bf4 c1R Nc2 Qc7 d8Q Na6 b8N Nb4 b7 Nc6 d7 Rb1 Na6 Nd2 Rf1 Na7 Nab4 Qc6 Bb8+ Bf4 Qc7 Rb2 d8N Bb6 Ne6 Bc5 Qd7 Be7 Bc4 Ke4 Nc7 Be3 Rf6 Bg5 Rb1 a1N Qc1 Nab3 Na1 Na5 Bb5 Nab3 Bf7 Nd4 Ba2 Rc2 Rb3 Rc5 Rd3 Rf5 Qe8 Bd7 Qc2 Be6 Qd7 Bc4 Bb3 Nc8 Ba2 Ra4 Bb3 Ra2 Na8 Rb2 Ba2 Na7 Bb3 Bd8 Ba2 Ne7 Bb3 Rg8 h8Q Ng6 h7 Be7 Ba2 Rg7 Qf8 Ne5 h8Q Nf7 Qfe8 Rg6 Qhf8 Rg7 Ba4 Ba6 Bb5 Nd8 Bg8 Nf7 Kh2 Rh7+ Kg2 Rh2+ Kg3 Rhf2 Kh3 Rg2
n2R1q1K/2n1k1PN/N1Bnq3/1b2N1n1/PR3Q1r/1R1Q1N2/3RB3/B1bn1r2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 e5 Ke3 h5 Ke4 c5 g4 b5 a4 b4 d4 c4 f4 h4 a6 c3 a7 c2 f6 b3 f5 b2 d6 h3 f7+ Kd7 f6 h2 Kf5 e4 Kg6 e3 d5 e2 Ra3 e1N Rb3 Bh6 f8Q Nc6 f7 Nf3 Be2 Nb4 Nd2 b1N Bb2 c1N Nc4 Nfd2 Nf3 Bb7 Ba1 Nc3 Nce5+ Kc8 d7+ Kc7 Rf1 Nde4 Qd3 N1a2 Rfb1 h1Q R1b2 Qe8 d8R Ba6 Rb8 Ngf6 Rd2 Qh2 Rb7+ Kd8 d6 Ncd5 d7 Rc8 a8N Nh7 Nc7 Bb5 Na6 Qf2 Qd6 Qe7 f8N Nb6 Qf6 Qf1 Qf4 Na8 Rb6 Nd6 Rb8 Nf6 Nh7 Qe6 Rb6 Ke7 d8R Nbd5 Rb8 Bc4 R8b4 Nfe4+ Nf6 Re8 Kh7 Bb5 g6 Ndc7 g5 Nac3 g7 Nd1 g8B Rf8 g6 Ng5+ Kh8 Rb8 g7 Rb6 Nh4 Rc6 Nhf3 Rc4 Nh7 Rf6 Qh2 Rh4 Bf7 Qf2 Be8 Rf5 Bc6 Qc5 Nd4 Rf1 Ndf3 Qf2 Qf4 Qc5 Nc4 Qcf5 Nce5 Qff7 Rg8 Qf8 Ra2 Qfc8 Qg3 Nge4 Rab2 Be3 Qf4 Bc1 Rd2 Ng5 Rf8 Qe8 Rg8 Q8f7 Rd8 Qf8+
2r4B/2BK1Q2/4BQr1/1N1b1qb1/2RR1nq1/1n1QP1N1/b1PQq1qk/N1N5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 Kg4 b4 f5 h4 Kg3 e6 a5 b6 g5 b7 f4 e7 d6 e8N a4 h6 a3 b5 g4 h7 a2 b6 f3 h5 f2 h6 Nc6 b8Q Ra4 b7 Ne5 c6 Ng6 c7 Ne5 Nd2 Nd7 Ke6 d5 Nd6 d4 Nb5 d3 Nb3 d2 Qa7 Ne7 b8Q Ng6 Rh4 Bb7 Bh3 Kh2 c8N+ g3 Ne7 f1B Qf4 Qa5 Nf5 Be7 Qad4 Rc8 h8B Bg5 h7 Rac4 Qd3 Nc5+ Kd6 Qa4 e3 Bf3 Ne2 Bd5 Ba3 Rd4 Qf3 g2 Nfg3 g1Q Qf7 Nf4 Nec1 Qg2 Bb2 Rc4 Bbe5 Re4 Qe1 d1Q Qed2 Qde2 Rb1 Qd4 Na1 Nb3 Kd7 Qa4 Bc7 Re6 Rb2 Rg6 Be6+ Nh3 Qe8 Qag4 Qf7 Qf5 Rd4 Nf4 Rb1 Qeg4 Qe4 Bfc4 Qed3 Na5 Rb4 Q2e2 Nab3 a1Q Ra4 Qa3 Na1 Ba2 Rac4 Qc5 Bhe5 Nb3 h8Q+ Bh6 Qd8 Bg5 Bh8 Qf8 Qdf6 Qh6 Rc5 Qhh3 Rcc4 Qhg2
3n4/1Q1r4/R1B3q1/2rb1Bq1/1R1N1NrR/b1rPK1QN/5P2/BqBNk1n1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 g4 a5 b4 e5 d3 c5 g6+ Kf6 b6 h5 d6 h4 b7 c4 d7 a4 g7 e4 b5 Ke5 g5 Kd4 f6 c3 f7 a3 b6 a2 g6 c2 Bg2 h3 Rh2 e3 Bf3 Ra7 Nd2 Kc3 Bc6 Qg5 d8B Rh5 Nf1 Ba3 f8N Nf6 g8B Nh7 g7 Be6 Ng6 Bd5 Nf4 Ra4 Rh1 h2 Ngh3 Qg6 Bc7 Ng5 Bh7 Nf3 g8Q Qg5 Bf5 Ng1+ Ke1 e2 Be5+ Rd4 Ne3 Rh4 Qh7 Rg4 Qh4 Qg6 Qg3 Qg5 Bb5 Nc6 b8N Nd8 b7 Qg6 Nc6 Qg5 b8R Qg6 Rb1 a1Q Rb4 Qb1 Ra8 Qg5 Ra6 Qg6 Bd6 Rc4 Nd4 Rc5 Be8 Qg5 Rb8 Qb6 Be5 Qbg6 Bc6 Bb4 Ba3 c1R Bf6 Rc2 Bc1 Ba3 Bh8 Rb2 Qa4 Rb7 Qb5 Rh7 Qb7 Rd7 Nb5+ Kb3 Kd2 e1R Ba1 Rf1 Bcb2 Rfc1 Nd1 R1c3 Ke3 Kc2 Bc1 Ne2 Rf1 h1Q Re1 Nf7 Rh8 Nd8 Rh4 Ng1 Kd4 Qf3 Re4 Qg2 Ke3 Qf1 Nb2 Qd1 Rb4 Qf1 Na4 Kd1 Nd4 Ke1 Nb2 Qf7 Nd1 Qe8+ Be6 Qeg6 Bf5 Qg2 Bcb2 Kf1 Nf3 Rc2 Nc3 Rc1 Nd4 Qf3+ Kd2 Qd1+ Ke3 Qc2 Nd1 Qb1 Ra5 Ke1 Ra6 R1c2 Bc1 R2c3
1r1k1n2/B2n1Q1B/1nbBR2K/1R6/2Q2RQ1/bP1RrBN1/q2Pb3/1n1Nq3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 h5 Kf3 c5 Kf4 a5 g4 c4 g6 h4 Kg5 e5+ f6 a4 f4 a3 d6 c3 f5 a2 g7 e4 d7+ Kf7 b3 c2 b6 h3 b7 e3 Ba3 c1N Nc3 e2 Bg2 e1Q Nge2 h2 Bd6 Qe8 d8R Nc6 b8B Na7 Bf3 Bb7 Ng3 Nc8 Ba7 Qa4 Re8 Be4 Re6 Nge7 g8Q+ Ke8 f7+ Kd8 f6 Bc6 Qe2 Rh6 Nd1 Rb8 Qc4 Nd3 Rc1 a1N Rc3 Ne5 Rd3 Rh7 Rg1 Rg7+ Kh6 h1B g5 Nc2 g6 Nd7 Rg2 Qa6 Rh2 Qa5 Rh5 Qa2 Rb5 Na3 Qg4 Nb1 Qc4 Nd5 Qg4 Nc7 Qc4 Ne8 Qg4 Be7 f8Q Ncb6 f7 Bg2 Qc4 Bf1 Qg4 Be2 Qc4 Bf6 Qg4 Bb2 Qe7+ Kc8 f8R Ba3 Rf4 Nf8 Qeh4 Rgb7 g7 Nf6 Qf7 Kd8 g8B Re7 Bh7 Nf6d7 Qhh5 Ba8 Qd5 Bc6 Qc4 Re8 Ref6 Re4 Re6 Re3
6K1/2q2n1q/N1QQr3/bBB2B1q/2nNnR2/PN2k1r1/1QP3BR/1qN2b2 w - - 0 1 illegal: No possible last move
1Q1b3R/1r3bQq/nK3R2/1QRB2Bn/1n1rP2R/1QqP2nq/1N1BN2k/8 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 b4 f5 h4 g5 d6 Ke6 h6 a5 h5 f4+ Kd3 Kf5 Kc4 Kg4 e4+ Kg3 h7 g4 h6 a4 d7 a3 e6 a2 e7 f3 e8R f2 b6 Na6 Kb5 c4 b7 c3 Bc4 f1Q d3 c2 Nc3 Qh4 d8B Be7 Rf8 Ra7 Na4 Nf6 Nb2 Be6 Bd2 c1Q Qb3 Qf5+ Kc6 Nh5 b5 Qc2 Rd1 a1N b6 Qg6 Rf2 Bf7+ Kb5 Re8 h8Q Qc1 h7 Nc2 Rhh2 Ncb4 Qg7 Bg5 h8R Qh7 Rf5 Qc3 Rc5 Rg8 Be7 Rd8 Rf1 Rd4 Bd5 Bf6 Rh1 Kg2 Rh3 g3 Ne2 Qg4 Rh4 Qh3 Ka5 Kh2 Rf2+ g2 Bd8 Be5 B8g5 Bc7 Rf6 Bd8 b8Q+ Kh1 Qb7 Kh2 Qc6 Rb7 Qb5 Rc7 b7 g1N Nc1 Ne2 b8Q Neg3 Kb6 Be8 Ne2 Bg6 Qa3 Bf7 Qb3 Rb7+
3R1b2/1QqRQ2b/NR1q2BB/6n1/1P1rB1NB/R1Pn1Qq1/K7/1nk2r1n w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb3 Ke5 f4+ Ke4 h4 d5 h6 a5 f6 e5 h7 g5 c3 a4+ Ka2 g4 b4 a3 b6 d4 f7 g3 f5 g2 c6 d3 f6 d2 h5 Ke3 b7 e4 h6 Qa5 c7 Nc6 b8Q Ne5 Qb7 Nf3 Bd3 Qc5 Nh3 g1N Nf2 Bf5 c8B Ne7 Rh3 Bg6 Bf5 Rd8 Bc2 Rg8 h8B Bh7 Bg6 Nf5 Rh5 Ng3 Rd5 Ne5 Rd7 Qc7 Qh5 Ngf3 Ng4+ Ke2 Qh3 d1Q Nd2 e3 Nb3 Qd2 Nc5 Nh1 Na6 Qdd6 Bce4 Ng5 Qf3+ Ke1 Bg7 e2 Bh8 Kd1 Bg7 Be7 f8R Nd3 f7 Kc2 Re8 e1Q f8Q Qeg3 Bf6 Rg7 Qf7 Bf8 Qe7 Rf7 Bd2 Ne6 Bh4 Ng5 Qg2 Rf1 Qf3 Rb8 Red8 Ra8 Nc5 Ra5 Na6 Rd5 Be3 Rd4 Bh5 Bg6 h7 Bf5 h8R Bg6 Rd1 Bh7 Rd2+ Kc1 Bhg6 Nf7 Bh6 Ng5 Kb3 a2 Ra8 a1N+ Ka2 Bg7 Rhd8 Nc2 Rab8 Na3 Rb2 Qgf4 Rb3 Nb1 Ra3 Qfe5 Qd5 Qg3 Rb6 Bf8 Qa8 Rg1 Qb7 Rf1
1BRb1r1R/nB3qr1/1Kb3Q1/r6b/P3RN1P/3BQ2R/1N2qnNB/r4k2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 h4 b5 a4 e5+ d6 g5 d4+ Ke4 f4 b4 f6 g4 d5 c6 h6 g3 f5 b3 f7 b2 h7 g2 a6 Bb7 f6 Bc8 a7 Ne7 d7 Qc7 d8Q Ng8+ d6 Nh6 Nd2+ Ke3 Qh5 Kf2 Rh3 b1B Qe7 e4 d7 e3 d8R e2 Ngf3 g1R Ne1 Bg6 Nc4 Ng4 Bf4 Bb7 Ng2 e1Q Bd3 Qe2 Rc8 Bg7 Qg5 Bh5 Re1 Rf8 h8R Bh6 Qg8 Bg5 Bh2 Qd7 Kb6 c5 Qh7 Nc6 Nb2 c4 Qg6 c3 Bb8 c2 Qe6 Rd8 f8N c1R f7 Ra1 Qe7 Bf6 Ne6 Rf8 Nef4 Bg5 Rc1 Bf6 Rc4 Kf1 Qe3 Nf2 Re4 Bd8+ Kc5 Re8 f8B Qf7 Bfd6 Rf8 Bdc7 Rg8 Kb6 Rg7 Ne1 Rg5 Neg2 Ra5 Nd5 Be7 Bh2 Bg5 Ndf4 Bd8+ Bc7 Rb8 a8B Na7 Rb4 Bd5+ Bb7 Bc6 Re4 Be7 Bd6 Ra8 Rc7 Re8 Rc8 Rf8 Bb8 Bd8+
b4qk1/R1Q5/5n1r/Nq1RQPKP/2N2b1N/2rN2BB/2bbr2R/R2n2Q1 w - - 0 1 illegal: No possible last move
N1nBQ3/b6K/kB2bq1N/nr1P1rn1/q1nb4/R1RP4/Q1N1B1BR/R7 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 g4 Kb7 f4 a5 b6 e5 g6 h5 g5 a4 f6 a3 f7 h4 g7 a2 g6 c4 f5 c3 f6 h3 Bg2 h2 Ne2 c2 Nbc3 Rh7 Nb5 Rh5 Ned4 Nd7 Nc7 Rh4+ Kf5 e4 Qe2 Be7 f8R e3 f7 Rb8 Na8 Ngf6 g8N Bb4 g7 Bd6 Kg6 Bf4 Nh6 Nh7 g8B Qe7 b4 Bg3 d3 Ka6 b7 Rh5 Bb2 c1B Nc2 Nb6 Bd4 Be6 Rc8 Be5 f8R Ng5 Rc3 Nc8 Bb6 Bd4 Bf7 Qd7 Qd2 e2 Bd8 e1N b5+ Ka7 b6+ Ka6 Rh8 Nef3 Rg1 h1Q Qf2 Ne4 Kh7 Bce3 Rgc1 Qh2 Ra3+ Qa4 Be8 Re5 Bh5 Nfd2 Be2 Nc4 Qf7 Qa5 Qe8 Qf4 Qa4 Rf5 Qb3 Ne7 Qb1 Qa4 Qb2 Rc8 b8B Rc5 b7 Nc8 Bbc7 Rb5 b8Q Qh4 Bb6 Qf6 Qc7 Bg1 Qe7 Bgf2 Qe8 Bfe3 Rab1 a1N Qa2 Nb3 Ra1 Nba5 Rcb1 Bf4 Rbb3 Bb8 Rc3 Ba7 Rg8 Rf3 Rg3 Rf1 Rh3 Rf5 Rh2 Ng5#
k3N3/4BRn1/n1q5/1PBBPRrn/1r3R2/1RQ1KQBr/1qr1Q1bb/2N5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 b4 g5 e4 c5 d4 Kc7 h4 Kb7 h6 a5 e6 f5 e7 a4 e8Q f4 h5 f3 h7 g4 b6 a3 h6 a2 d6 g3+ Ke3 f2 b5 c4 d5 c3 d7 g2 d6 c2 Na3 Nc6 Nc4 Kb8 b7 Qc7 d8B Nce7 d7 Nc6 Qf3 Qe5 Rh4 Qg5+ Rf4 Ra5 Be7 Nb4 d8R Qf6 Rd7 Qc6 Ba3 c1R Ne2 g1R Nd6 Ra4 Rb1 a1Q Bg2 Na6 Rb3 Qb2 Bc5 Rc2 Nc1 Rb4 Qeh5 Nf6 Ne8 Bg7 Rd5 Be6 Rdf5 Bd5 Qe2 Bf8 Qhf3 Nh5 Bh1 Ng7 Rf7 Rg8 h8R Rg3 h7 Rh3 Bg2 Nh5 R7f5 Rg5 Rg8 Bh6 h8Q Ng7 Rgf8 f1N+ Kd3 Rgh5 R8f7 Ng3 Ke3 Rg5 Bh1 N3h5 Bg2 Ne6 Qc3 Neg7 Bh1 Qb6 Bg2 Ka7 b8B+ Ka8 Rh4 Qb7 Bg3 Qc6 e5 Be4 Bh1 Bd5 Qf4 Bg2 Rg4 Bf1 Bd5 Bg2 Qff3 Rg6+ Kd3 Bf4 Rh4 Rg5 Rg4 Be3 Rgf4 Bd4 Ke4 Bg1+ Kd3 Bh2 Ke3 Ra4 Kd3 Rd4+ Ke3 Rb4
1qR5/Kbr4N/n2qB3/P3bQ2/1BR1Q3/N2bn1Bb/k1PN1rN1/2B2Qq1 w - - 0 1 illegal: No possible last move
2N2B2/2n1Nb1q/N1r1R2P/2Q1R1K1/1NbB4/k4bBP/B2r1Q2/nR2brq1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Ke3 a5 Kf4 d5 e4 f5 b4 a4 c4 g6 c6 d4 h3 a3 b6 d3 c7 a2 e6 Kd6 e7 d2 e8R Nc6 b7 Be6 c8Q Qb6 b8B+ Qc7 b5 Kc5+ e5 Kb4 h6 Qf7 b6 Qf6 b7 Na7 c5 Bg7 c6 Ne7 c7 Nb5 Qe1 Ra6 Ne2 Nc6 Ng3 Bf7 e6 Ncd4 e7 Rc6 Na3 Nb3 Qf2 d1B Bc4 Bf3 Rb1 a1R Ba7 Ka4 b8B g5+ Ke3 g4 Kf4 Qd6+ Kg5 f4 Bd4 Qd7 Nf5 g3 Re1 g2 Re5 Ra2 Bce3 Rf8 Nc2 Na1 Nb4 Rd2 Ba2 Ka3 Re6 Be5 Bc5 Bc3 Bed4 Be2 Bd6 f3 Bg3 g1Q Bba7 Qf1 Bg7 Qg1 Bad4 Rd3 Re5 Be1 Re6 Rd2 Re5 Bfc4 Re6 Rf6 Bf8 Bb3 Re5 Bf7 Qe3+ Rc3 Rd8 f2 e8N Qc6 Rd6 f1B Ne7 Qe4 Rde6 Qh7 Qf3 Bg2 Qe3 Rf1 Qf2 Rcd3 Nf6 Rb3 Nfd5 Rc3 Na6 Bgf3 Ndb4 Bd3 Qd7 Rc5 c8N Nc7 Qd5 Rc6 Qc5 Bc4
QBr4N/4rr1N/1Q2QP1R/bK3n2/2bB1n1N/1P1B1Qq1/6R1/qr1N1q1k w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 h4 g5 f4 a5 f6 c5 b6 e5 h6 a4 d6 g4 d5 g3 f7 a3 d7 a2 f5 g2 f6 Bb7 b3 Qc7 d8Q Na6 h7 Nh6 h5 Ra7 d6 Bd5+ Kb5 c4 b7 c3 b8B c2 d7 Nb4 Bb2 c1R Qe7 Nd3 d8Q Nf4 Nf3 g1Q Bd4 Nf5 Qe6 Bb4 f8N Ba5 h6 Qg2 Bc4 Qf1 Nh4 Qg7 Qc7 Qg3 Qcb6 Rf7 Rg1 Rg8 h8N Rgg7 Be2 Rc8 h7 Re7 Bc4 Rgf7 Rg2 Ng7 Na3 Nf5 Rb1 a1Q Nc2 Qff3 Qh1 Qff2 Ne3 Qf1 N4g6 Kf3 Nd1 e4 Bd3 e3 Nh4+ Kg4 Rbb2 e2 Rh2 e1R Rbg2 Rg7 Nf3 Rgf7 Rh6 Rd8 Nh4 Rc8 Qg1 Kh3 Qge3 Re2 Qf3 Rb2 Nh8g6 Rb1 h8Q Be1 Nh7 Ba5 Rg1 Kh2 Rg2+ Kh1 Qf8 Qa2 Nh8 Qa1 Qe8 Qg8 Q8c6 Qg3 Qa8 Bc4+
4q1RN/1Q2KRB1/Nb1BP3/r4R2/1Q3bn1/NBb2r2/1B3Pbr/n1N3qk w - - 0 1 illegal: No proof kernel
2RR1rq1/N1K1bq1B/2P5/Q4B1r/Q6P/nb1nbB2/1k1bNqQB/3RR3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 g5 b4 a5 h4 f5 e4 a4 h6 f4 h7 d6 b6 d5+ Kb5 a3 c4 d4 c6 d3 c5 g4 b7 a2 c7 d2 Kb6 g3 b5 f3 c6 g2 Na3 f2 Bd3 f1Q Qa4 d1Q Ne2 Bd7 Bf4 Bh6 Bh2 Qf4 Re1 Qdd2 Rad1 Qdf6 c8R a1B Kc7 g1B b6 Qg6 Nb5 Qff7 Na7 Nf6 Bb1 Rf8 h8Q Nh5 Qg7 Bge3 Bc2 Qh7 Qg2 Nf4 Qa5 Qhg8 Bb1 Ke7 e6 Kf6 e7 Nd3 e8B Be6+ Bd7 Bb3 Qa4 Bb2 Rd8 Ba3 e5+ Ke7 e6 Kf6 Qa5 Be7 Bc8 Nd7 b8R Qb2 b7 Nb6 Bd7 Qa2 Rbc8 Nc4 b8Q Na3 Qbb5 Rb8 Qba4 Rb5 Bc2 Rh5 Bb1 Bd2 Bc2 Bhe3 Bb1 B7c5 e7 Qc2 e8B Be7 Be6 Qc5 B8d7 Qf5 Bd5 Qf2 Ng3 Ke5 Bf5 Nb4 Bbd3 Kd4 Bf3+ Kc3 Ne2+ Kb2 Bde4 Nd3 Bh7 Bd4 Bef5 B4e3
1n3QQN/k1qqQr2/1NP4N/2qP2bR/BR2q2n/1b2B1Q1/1B2b3/2r1KB2 w - - 0 1 illegal: No proof kernel
k2bb1Q1/4q1nR/NPn1q1Q1/3BrQ2/1N1rBP2/Q5bK/bBr5/BR5R w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 c5 Kg3 Kc7 d4 Kb7 b4 e5 d6 h5 f6 a5 f7 e4 b6 a4 d5 c4 g6 a3 d7 e3 b5 e2 d6 e1B+ Kh3 c3 g4 a2 g7 h4 g5 c2 g6 Ne7 g8Q Qe8 g7 Ra7 Nd2 Ka8 Qh5 Ra5 b7+ Ka7 Bb2 c1Q Ngf3 Ra4 Rb1 a1R Nd4 Qc3+ Bd3 Qa3 Qg6 Rc4 Ne4 Rc2 Nc5 Bg3 Be4 Nbc6 b8R Rh5 Rb7+ Ka8 b6 Re5 Na6 Nf5 d8B Qe6 d7 Be7 f8Q Qb4 Bc7 Ra4 d8Q Qbd6 Qd7 Bd8 Qde7 Bd7 Bb8 Qc7 Qa3 Be8 Qfc5 Qce7 Rd7 Rg2 Nc2 Rd4 Ncb4 Rc2 Qca5 Rb5 Be5 Rbc5 Kg4 h3 Qb5 h2 Kh3 Rd6 Bec3 Re5 Ba1 Rd4 Bcb2 Q7f6 Q8f7 Qg5 g8B Ng7+ Qff5 Qge7 Qc4 Q6f6 Bgd5 Qfe6 Rhf1 h1B Qcb3 Bf3 Rh1 Be2 Rb7 Bc4 Rc7 Bh4 Qbg3 Ba2 Qg2 Nh5 Qg8 Be1 Q2g6 Bg3 Rd7 Q7f6 Rf7 Qfe7 Rh7 Ng7
2q3K1/1bB2Q2/P1qQ3B/nn2R1b1/1qq3r1/1RPNN1kr/B1NR4/3Bb1N1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 d5 h4 b5 f4 g5 a4 e6 c3 g4 c6 b4 h6 b3 h7 b2 c7 g3 h5 g2 h6 Ra7 a6 Ne7 a5 Qd6 Rh2 Qb4+ Bc4 Qb3 Ra3 Ra8 a7 Ng6 a6 Qc2 Rb3 Be7 Na3 Rg8 h8B+ Rg7 h7 Qb1 Nc2 Bb7 c8N Qa2 Nd6 b1Q Be2 Qa4+ Nc4 Qc6 N4e3 Nh4 Qd3 Qc8 Bd1 Bd8 Bd2 Nc6+ Kc5 e5 Kd6 Rb8 a8B d4 Qc4 d3 Kd5 Kf7 f6 Kg6 f7 e4 f8R Bg5 Re8 Nf5 Re5 Nfd4 f5+ Kf6 Bc1 d2 Qb4 Nb5 Qd6+ Kf7 f6 Kg6 Re7 Qa2 Re5 Rg8 Bg7 Qa4 h8Q Qb4 Bh6 Rg7 Qhf8 Na5+ Qc6 Rh7 Qd6 Rh8 Qd7 Rg8 Ke6 Rg7 f7 Qc4+ Nd5 e3 Qd6 e2 Ba3 Q4c6 Nde3 e1B Bc5 Rg8 Bb6 Rg7 Bc7 Rh7 Nh3 g1Q Re2 Kh5 f8N Kh4 Ng6+ Kg3 Ngf4 Qgg2 Ng1 Qge4 Nd3 Qb4 Rf2 Rh8 Kf7 Qcc4+ Kg7 Qc6 Qf7 Qbc4 Bf3 d1Q Rd2 Qb1 Bd1 Qb2 Ra3 Qbb4 Rb3 Rf8 Qfe7 Rf4 Qf7 Q8d7 Kh7 Rh8+ Kg7 Rh7+ Kg8 Rg4 Bf8 Rh3 Bh6 Bc8 Bb7 Qf3 Bd5 Bb7 Be6 Qfc6 Rb1 Qf4 Ba2 Qfc4 Rb3 Qc8+
2R1QRNB/bq2QQ1P/rrnKR3/8/k2q4/B3NQ2/3PB1B1/3bnnnq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 c5 b4 a5 e4 g6 h4 c4 b6 c3 e6+ Kd6 e7 a4 e8B a3 b7 c2 b5 Kc5 Ke5 Kb4 d6 f4 b6 g5 h6 g4 h5 f3 d7 g3 h7 f2 h6 g2 Nf3 g1Q Ne1 a2 Qf3 Ra7 Ng2 Bg7+ Kd6 Nf6 e5 Ng8 e6 Bf6 e7 Bh4 Ne3 Bf6 Be2 f1N Nc3 Na6 b8R Qg2 b7 Bd4 Ncd5+ Ka4 Nf6 Nc5 Ba3 Nd3 Re1 a1Q Rh2 Qh1 Rf2 c1N Bh5 Qg2 e8Q Ne7 Qf7 Nc6 Ng8 Ra6 Bg4 Qb2 Bh3 Qh1 Bg2 Ba7 Ra8 Qb3 b8Q Qb7 Qc7 Qdh4 d8Q Bg4 Rc8 Bh5 Qde8 Qd4+ Q3d5 Bf3 Qfe7 Bh5 Rf8 Rb6 Q7f7 Bg4 Qce7 Bh5 Bef3 Ne2 Bg4 Ng1 Be2 Qc3 Qdf3 Bg4 Rb1 Ne1 Rb5 Qa1 Re5 Qb2 Re6 Bh5 Nf6 Rg8 h8B Rg6 h7 Qd4+ Qd5 Bf3 Ng8 Bg4 Bc4 Bd1 Be2 Rg3 Nf5 Rgb3 Ne3 Ra6 Qf3 Rbb6 Qff7 Qg4 Qdf3 Qd4+
2q1r1q1/4bBPP/N1BRbbQ1/Br6/6Nn/1k1B2QN/n3NK2/1bQ2rR1 w - - 0 1 illegal: No proof kernel
1bK1N3/4qP2/Q1bn2BN/RN1rN1BB/4R1nr/2Q5/3n2kP/Q2qQ1nb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Kd5 a5 c4 g5 b4 e4 f4 g4 c6 g3 c5 e3 b6 a4 c7 d6 b5 g2 h6 a3 b7 e2 h7 e1N b6 a2 c6 Bg7 Nc3 Bf8 Nf3 g1Q Bd3 Qf1 Ne5 Nd7 b8Q Qg1 b7 Nc5 Qa7 Na6 b8Q Nh6 Qbb3 Qg7 Nb5 Nc5 Qa6 Qg4 Qc3 Nf3 Qde1 Bb7 c8B Ng1 Be2 Qg7 Bh5 Qge7 Bd7 Ra7 Bde8 Ne4 Beg6 Ng4 Be3 Ba8 Bd2 Rb7 c7 Bg7 Kc6 d5 c8N d4 Nf7 Nd6 Nh6 Rc7+ Kb6 Bc6 Bc1 Qdd7 Be3 Rd8 h8N Ra7 N8f7 Ra8 Ne5 d3 Qb1 d2 Qe1 d1B Bd2 Ne8 Ncd6 Bdf3 Bc1 Nh3 Rf1 Bh1 Rf2 Rac8 Re2 Ng1 Re4 Bf8 Nc7 Bg7 Ndb5 Qd1 Ka7 Rd3 Bd2 Rcd8 Bc1 R8d7 Kb8 Rh3 Kc8 Rd5 Be3 Rh4 Bc1 Bf8 Bd2 Qh7 Bc1 Bd6 Bd2 Qe7 Be3 Kg7 f6+ Kh8 f7 Kg7 f5 Kf6 Rb1 a1N f8Q+ Qf7 Rbb4 Nb3 Ra4 Nd2 Qg8 Qe7 Ra5 Nb3 Bc1 Nd2 Qg7+ Kg5 f6 Ne2 f7 Ng1 Re2 Kf4 Qa1 Nef6 Ne8 Ne4 Nd7 Kf3 Qgc3+ Rd3 Re3+ Kg2 Ne5 Rd5 Re2+ Nef2 Re4 Bb8 Rb4 Nfe4 Rba4 Nb3 Bg5 Nbd2 Rb4 Ng3 Rf4 Nf5 Re4 Nd6+
1kb1r3/1n2Pn2/2QNR1Qq/R1bQ3B/4bq1R/r6R/b2BqP2/Q1BN2K1 w - - 0 1 illegal: No proof kernel
rn1qr2q/4Pkb1/QNb5/R6r/QP2KBQN/RN1B2b1/3Q2N1/2b1R2n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kf3 f5 h4 a5 d4 c5 e4 f4 b4 c4 b6 c3 b7 c2 e6 a4 h6 a3 h5 a2 e7 Ra5 d6 Rh7 d5 Kf7 e8Q+ Kf6 e5+ Kf5 e6 Kf6 e7 g4+ Ke4 g3 d7 f3 d6 g2 Bf4 c1R Nh3 g1B Nd2 f2 Bd3 f1Q Nb3 Rh8 h7 Rb5 h6 Ba7 Qg4 Qc7 d8R Qb6 d7 Rh5 Rg1 Rcc5 Rg3 Qf2 Re1 a1B Rge3 Be5 Rg3 Nc6 b8N Bb7 Rc8 Qc7 d8Q Ra5 Rge3 Qd6 Qb6 Qd7 Qa6 Qh4 Rd8 Qc7 Rd5 Bg7 Rg3 Ra3 Ra5 Be3 Qd8 Qb6 Nd7+ Kf7 Rf3 Qc7 Nb6 Bc1 Qd4 Bd6 Qf2 Qd7 Qd2 Qd8 Qd7 Bc5 Qe8+ Kf6 Bf1 Ke6 Rb5 Be3 Na1 Rc5 Ng5+ Kf6 Qa8 Ra6 Ra5 Bf2 Rfa3 Qc7 Bd3 Qb8 Nf3 Qd8 Nb3 Bg3 Qa7 Rd5 Qa8 Nb8 Qa4 Bc6 Qb7 Ra7 Qa6 Qd6 Rg1 Ra8 Ne1 Kg6 Ng2 Kf7 Re1 Nf6+ Kf3 Rg8 h8Q Rc8 h7 Ng4 Ke4 Re8 Be3 Qd8 Bf4 Bc3 Qg7+ Ke6 h8N Nf2+ Ke3 Nh1 Ng6 Qh8 N6h4 Rh5 Qg5 Kf7 Qg4 Rd5 Kf3 Bg7 Ke4 Rh5+
1N4KQ/QRP1R2r/2qk2q1/2q3b1/RB1r4/3PNn1N/2qn1B1R/1b1N1B1r w - - 0 1 illegal: No proof kernel
Q1b5/PbNB1RN1/BkqBN2n/8/3b1Q2/Qb4BP/1Nq2n2/R1r1rK1n w - - 0 1 illegal: No possible last move
4b2B/bK1Rnb1B/1Pr2Rr1/7N/2Q1RPN1/1N2B3/b1n1bb1B/N4Qqk w - - 0 1 illegal: No proof kernel
Bn1n1N1k/2R1QPN1/2rqBKR1/n2r4/3R1B2/bnN1P2b/B5nQ/2nN4 w - - 0 1 illegal: No proof kernel
1RQr1bB1/2B1Q3/1NN1bn2/1QN1rr2/4Q1q1/4Rbbr/nP1K1N1P/k2B4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 e4 g5 b6 a5 h6 f5 h7 c5 b7 f4 d6+ Ke6 d7 c4 d5+ Ke7 e6 Kd6 e7 Kc5 e8B Kb4 d6 c3 e5 c2 e6 Kb3 e7 a4 Be2 f3 Nc3 f2+ Kd2 f1B Nh3 a3 Na4 g4 Qe1 a2 Nf2 g3 Bd1 g2 Qe4 g1B Nb6 Nc6 b8Q Nf6 Bf7+ Bc4 e8Q Be6 Qa7 Nb4 Bg8 Bb7 Qb8 Bc6 Qe7 Qc8 d8N Ra5 d7 Rf5 Nb7 Bcd5 Qg2 Bf3 d8N Qc4 Qg6 Qg4 Nc6 Re5 Qe4 Rf5 Nh3 Bf2 Re1 Bg3 Nf2 Re5 Qa8 Rf5 Qa6 Re5 Qb5 Rf5 Rb1 a1R Re3+ Ka2 Nc5 Re5 Bf7 Rg8 h8Q Rgg5 Bg8 Rh5 Rd3 Rh3 Rd8 Rf5 Rb8 Re5 Ke1 Rf5 Bf4 c1R Bc7 Rc4 Rc1 Rd4 Rc4 Rd8 Rc3 Rb1 Re3 Ka1 Qbc4 Na2 Qb5 Nd5 Kd2 Rc1 Qhd4 Nf6 Qdd7 Rc4 Qed3 Ra4 Qc8 Re4 Qd4 Ree5 Qd5 Re8 Qe4 Rd8+
2B1Q1KB/6R1/2n1qNrN/bP1NQb1Q/1P5R/5rb1/krR2rn1/2bN3Q w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 g5 h4 a5 f4 c5 f6 a4 f7 g4 d6 c4 h6 c3 d7 c2 Ke6 Kb3 d5 a3 f5 a2 d6 g3 f6 g2 h5 Ra6 h7 Qc7 h6 Ra8 Qh5 Bg7 f8N Qb6 Kf7 e5 d8R e4 d7 e3 Nc3 e2 Nd1 e1R Nh3 g1R Nf4 Qd6 Rh4 Qe5 Nd5 Ra5 Bh3 Ba6 Rc8 Ref1 d8N Rg6 Nd7 Rf3 Bf4 c1B Rc2 Qf5 Be5 Ne7 Bd4 Re8 h8Q Nbc6 h7 Bc8 Rb1 a1B Bg4 Ka2 b4+ Bab2 Bc3 Bf8 Qg7 Be3 h8Q Bb6 Qgh6 Bg7 Qe3 Ra8 Qe5 Ba5 Rbc1 Rb8 Rg2 Qe4 Rcc2 Nf5 Rg1 Re7+ Kg8 Ne3 f7 Ng2 N7f6 Bf5 f8Q Rf7 Qfe8 Rc8 Nd7 Rff6 Nf7 Ra8 Nh6 Rf7 Qf6 Qe6 Qe5 Ra6 N7f6 Bf8+ Qg7 Bd6 Qh2 Bg3 Qh1 Ka3 Bd4 Bc1 Bb2+ Ka2 Bh3 Rg4 Qgg5 Rc4 Qf4 Rcc3 Qe5 Rb3 Qe1 Qd6 Bg4 Bd3 Q1e6 Rf2 Bd4+ Rb2 Nd7 Nb8 Rc6 Ne3 Qhf5 Be5 Qh5 R7f3 Rc2 Rb6 Rg3 Ng2 Q6e7 Bef4 Bh8 Bg6 Be6 Bf5 Rg7 Bg3 Qf6 Qe7 Qe5 Ra6 N7f6 Rd6 Nfg4 Nc6 Bc8 Rg6 Ngf6 Qe6+
2QRR2n/b4RBB/2bPbq1r/3Pb3/1NKNB3/n1RN1n1B/1r4Q1/1k3n2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 b4 Ke5 f4+ Kd6 g4 e5 f6 c5 f5 a5 g6 h5 g5 h4 f7 a4 f6 a3 g7 a2 g6 h3 b6 e4+ Kc4 Ke5 d4+ Kf5 b5 h2 b7 e3 b6 Ke4 d6 e2 Bh3 e1N Nf3 Qd7 Rf1 h1B Na3 Nh6 g8B Nc6 b8Q Nd8 g7 Ng4 b7 Nh2 Bb2 Rh6 Nc2 Qe7 Rc1 a1N Qd2 Ra2 Ne5 Nef3 Nb4 Nc2 Ned3 Bd7 Rf2 Nf1 Qc8 Bf5 Bc3 Rb2 b8R Bg4 Qg5 Be6+ Qd5+ Ke3 Bh7 Bg2 g8B Bg7 f8N Nf7 Be4 Nh8 f7 Be5 Bgh7 Qf6 Nd7 Bh1 f8R Bg2 Re8 Bh1 Kb5 c4 N7c5 Bg2 Nb3 Na3+ Kc5 Bh1 Qc7 Bg2 Rbd8 Bh1 Qc8 Bg2 Be1 c3 Qdb7 c2 Bc3 Bh1 Qg7 Rb1 Qg2 Rb2 Ra1 c1B Rc2 Nb1 Ra7 Na3 Rf7 Bd2 Na5 Be1 Nac6 Bf2 Rc1 Ra2 Ba1 Kd2 Rc3 Rc2 Nb2 Kc1 N2d3+ Kb1 Bb2 Bd7 Ba1 Nb5 Kc4 Rb2 Qg8 Bg2 d5 Ba7 Nd4 Bc6 B3f5 Bh3 Qg2 Bg4 Bd7 Bh5 Bh3 Bg4 Ra3 Bf5 Rc3 Be6 Na6 Qh4 Ra3 Rb3 Ne2 Bh2 Bg7 Be5 Nd4 Qf6 Nab4 Rb2 Rc3 Na3+
1QrQ2R1/K1r2rq1/3bk1nb/R7/1npQN3/4nbN1/P1B2PR1/R1BQN3 w - - 0 1 illegal: No possible last move
N2R3Q/1B1rR1K1/2NB2R1/1B2q2P/1QP2pQr/B5bb/1rnn2k1/1Q2bn2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 h6 Ke7 Kd2 Ke6 Kd3 Kd5 c4+ Ke6 Kd4 Kf5 b4 Kg4 e4+ Kh4 e6 f5 Ke5 d5 e7 g5 e8B a5 c6 g4 b6 g3 c7 f4 h7 d4 b7 g2 b5 d3 b6 a4 Na3 d2 Nf3+ Kh3 Rg1 Qd7 Nb5 a3 Nfd4 Ne7 Kf6 a2 e5 Ra3 e6 Na6 b8B Ra5 b7 Ng6 e7 Nh4 Bd3 Qd8 Be4 Nc5 Qe1 Bd7 c8Q d1R Nc7 Nf3 Na8 Rb5 Ba3 Qa5 Rc1 Rd3 Rd1 a1N Be5 Bf5 b8Q Nc2 Rd2 Qc3 Qb1 Nb3 B8c6 Be6 e8R Bb4 Kg7 Qa1 Re2 Be1 Rd8 Nbd2 Qd6 Rb4 Bb5 Nf1 Bb7 N3d2 Nc6 Qd4 Qf8 Rb2 Qb4 Qc5 Bc7 Bg4 Qf5 Rd7+ Re7 Qd5 Bd6 Qe4 Rh1 g1B Qe6 Be3 Rg1 B3f2 Rg2 Bf5 Rg6 Bg4 Qf5 Kg2 h4 Bg3 Qg5 Bh3 Qf5 Rf8 Qg4 Rf5 h8Q Rg5 Qf5 Rg4 h5 Rh4 Qg4 Qe5+
1RQ1r1B1/Q4n1P/2N4K/1nqB3N/1b1RBNN1/B2b2r1/p1k2brP/3n2Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 Kf4 f5 Kg5 a5 d4 c4 b4 g6 e4 c3 h6 c2 h7 a4 e6 Kd6+ e7 f4 b6 a3 e5+ Kd7 d6 Kc6 d5+ Kb7 e6 a2 b5 f3 d7 f2 d6 Ra4 Nf3 Qc7 d8Q Re4 e8B Qc4 d7 Re1 e7 Qb4 Nbd2 Qa3 Bc4 f1N Bef7 Re2 e8B Ne3 Ne4 Nh6 Bfd5+ Nc6 Ng3 Rg2 Ne5 Qc3 Rb1 Bb4 Ba3 c1R Qg1 Nd1 Ng4 Rg8 Bd3 Qc5 Nh5 Rc3 Bf7 Re8 Be4 Rcg3 Bg8 Nf7+ Kf4 Ka8 b7+ Ka7 b8N Ba6 Qc8 Kb6 d8N Ka5 b6 Ka4 b7 Na7 Nbc6 Bd3 b8Q Nb5 Ne6 g5+ Kf5 Rb2 Kg6 Rbg2 Nge5 g4 Nef4 Rf3 Rb2 g3 Ng4 Re3 Rc2 Rf3 Rc4 Kb3 Rd4+ Kc2 Qbb7 Rgf2 Qb6 g2 Qa7 Rg3 Kg7 Nfd6 Kh6 Rd2 Qe1 g1B Qf1 Bf2 Qg2 Ne3 Rb1 Nd1 Qg1 Nf7+ Kg7 Nbd6 Na5 Bc3 Kg6 Be1 Rb7 Bb4 Rb8 Rdg2 Nc6 Bf2 Kg7 Nb5 Kg6 Ng5 Kh6 Nf7+
3b3B/1RQp1n2/2NNQR1B/2B1Nr2/2PQ2r1/3P1n1K/k1n1bbqQ/3B2r1 w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 b3 axb3 Qb6 b4 Qc7 b5 Qd8 f4 Kf7 Kf2 a5 Kg2 g5 h4 e5 c4 a4 c6 a3 f6 Ke6 f7 a2 b6 g4 b7 g3 h6 e4 h5 e3 h7 e2 h6 e1B c7 Ra4 f5+ Kd6 f6 Kc5 Nf3 Kb4 Na3 Be7 f8Q Qe8 f7 Qd8 Ne5 Ra8 Be2 Nc6 b8N Nd4 Kh3 g2 Qe8 g1R f8B Nf3 Nb5 Ra4 Nd6 Bb7 c8Q Ra5 Qc7 Bf2 d3 Ba8 Qd2+ Kb3 Nbc6 Qb8 Qg6 Qb7 Qe6 Bd8 Ba3 Rb5 Rf1 a1N Bd1+ Nc2 Bc5 Ka2 Qe3 Ra5 Qd4 Qb1 Ne7 Be4 N7c6 Bg6 Rh2 Bh5 Rg2 Rb5 Rg6 Rg4 Rf6 Qc1 Be2 Qa1 Rb1 Ra5 Rb7 Qc1 Qf4 Qh1+ Qh2 Rb5 Bd1 Rb1 Be2 Rbg1 Bd1 Ne7 Qb6 Ng6 Qc7 Rg8 Bg7 Rf8 h8Q Rf7 h7 Rf8 Qhg8 Nh8 Bh6 Nf7 Qg6 Rg8 Qe4 R8g5 h8B Rf5 Qf4 Nfe1 Na5 Rg7 Rb5 Be2 Rb7 Nf3 Nac6 R7g4 Qd4 Qg2+
2n2rnb/Pr1R2r1/3pR1nQ/1BB4R/3Q2NN/BKQbP3/1b2k3/1q1RB3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 h4 Kf5 a4 Kg4 h6 g5 h5 f5 e3+ Kg3 a6 Kf2 a7 b5 a5 g4 c6 f4 e6 d6 a6 b4+ Kb3 f3 c4 g3 e7 g2 e8R Qb6 c7 Qb5 h7 Be7 c5 Qe2 h6 Nf6 c6 Bh3 c8R Ng8 c7 Bf8 Na3 Qe1 Qd4 Nd7 Nc4 Nb6 Ne5 Bg7 Re6 Bf5 Ba3 Bd3 Rd8 Nc8 Rd7 Qc1 Rh5 Qb1+ Bb2 Ke1 Ng4 f2 Nf3+ Kd1 Nh4 g1B Be2+ Kd2 Bf1 Bh2 Be2 Rb8 a8Q f1N a7 Ng3 Qh1 Nf5 Bf1 Bhe5 Be2 Qc1 Ba3 Rb7 Bf1 Nfe7 Qh3 Nb6 c8Q Ng6 Qcc3+ Kd1 Qh2 Nc8 Qhf4 Nf6 Rb1 Rf8 h8B Ng8 h7 Bgf6 Qh6 Rc7 Bg2 Ke2 Bc6 Qh1 Rd1 Bg7 Ka4 b3 Bb5 b2 Kb3 Bgf6 Bg7 Rb7 h8B b1R+ Bb2 Rc1 Ba3 Qe4 Qcb4 Rcc7 Qbc3 Be7 Bf6 Bd8 Bg5 Bdf6 Bf4 Bg7 Bg3 Bef6 Qdc4 Bd4 Be1 Bge5 Bf6 Qh1 Bd8 Bh8 Q4b4 Bdg7 Bf6 Qg1 Bd4 Qf1 Bc5 Qh1 Qc1 Bb2 Qcc3 Qf1 Qbd4 Qf5 Rd8 Rg7 Rd7 Bc4+ Ka4 Qb1 Kb4 Bd3 Ka4 Kf1 Kb3 Ke2
qRn2K2/kNQ3Qn/1R1rb3/4R1n1/2rN1br1/P3pNBR/QP2N1B1/q7 w - - 0 1 illegal: No proof kernel
1r1B2Bk/1N1r1RqB/1QN5/2q4b/R1P1B3/3Pp1bn/1b2K2R/rQNn2R1 w - - 0 1 illegal: No proof kernel
1QK1k3/rRbn1R1B/N5N1/P1R2Bq1/b4Nr1/1r2n3/1pP2N2/BRn1Q2q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Kc3 e5 Kb4 d5 Kb5 g4 h4 d4 f4 b6 a4 d3 f6 g3 f5 d2 a6 e4 h6 g2 a5 e3 c6 e2 h5 e1N a7 Be7 c7 Qd4 h7 Nc6 f7+ Kd7 f8Q Bb4 h6 Qf6 Nh3 g1R Nc3 Qg5 Bb2 Bc5 f6 Qg2 f7 Nd3 Nf2 Ndb4 Bd3 Na6 Ne2 Nge7 Qe1 d1Q Rb1 Qg6 Nf4 Ncb8 Rh5 Nd5 Ba1 Nab4 Rg5 Rg8 h8N Rg4 h7 Ne3 Be4 Bd4 Rc5 Qg5 Nhg6 Nd3 h8R Be5 Rh7 Nc1 Bd3 Rg7 Qg8 Qf3 f8R Qh1 Qb3 Rg3 Rf7+ Ke8 Qb2 Bg4 c8B Nd7 Ka6 b5 Bf5 Rb8 a8N b4 Bd3 b3 Nc7+ Kd8 Bf5 Bh3 Ka7 Rg4 Na6 Bc7 Bb7 Ke8 Bbe4 Bf1 Bd3 Rb4 Bde4 Bb5 Kb7 Ba4+ Kc8 Qe7 Qe5 b2 Qd6 Rb3 Qb6 Bd6 Qb8 Qg5 Bd3 Nf8 Rb7 Re7 Rf7 Nd7 Nf8 Bc7 Bh7 Re6 N8g6 Re7 Bf5 Re6 Rbb5 Rb6 Rb4 Rb7 Rbb5 Ra7 Rb6 Qgh6 Rb7 Qg5
6qr/n1Q1qr1R/1Q2NN2/P3bp1n/kB6/1bBB1NRP/BR2nR2/3b2K1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 d4 b5 a4 f5 e4 c5 d6 Kc6 e6 g5 a6 b4 a5 c4 e7 Kb5 e8R b3 e5 b2 d5 g4 a7 Rh6 d7 Qc7 d8N Bb7 d6 Bc8 d7 Bg7 e6 Rh7 e7 Ba6 h6 Bh8 Qb3+ Kc5 Qb6+ Kd5 Ne6 c3 d8Q+ Qd7 Bd3 c2 Nf3 g3+ Kg1 g2 Bd2 c1N Ra3 Nc6 Bb4 Rb8 a8R Bc4 Qdc7 Na7 Nbd2 b1B Ne4 Rf7 h7 Be5 h8B Bc2 h3 Rc8 Rh2 Bd1 Rb8 Nf6 Bg7 Ba2 Rh8 Nh5 e8B Bab3 Rh7 Qe7 Beb5 Rd8 Bb1 Rh8 Ba2 Bf4 Bgc3 Be5 Bc6+ Kc4 Nf6 Kd3 Bb5+ Kc2 Kf2 Ne2 Bd3+ Kc1 Ke3 g1Q+ Rf2 Bc4 Rb3 Qg4 Rb2 Bcb3 Rg8 Qc4 Rg3 Qd5 Rfg2 Qa8 Kf2 Qg8 Kf1 Nef4 Rbf2 Ne2 Bd2+ Kb2 Rh2 Nc3 Kg1 Ne2+ Kh1 Qg7 Rf1 Nc3 Kg1 Qgf8 Re2 Qg8 Rff2 Bd4 Bc5 Be5 Bd4 Ka3 Bc5+ Ka4 Bb4 Ncb5 Bdc3 Nd4 Rb2 Ne2+
B4Q2/2qQ4/1QB5/pnQ2PRK/RRBb4/1r1q2n1/1k1P2b1/1nqr1NBN w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 f4+ Kd4 b4 e5 b6 a5 d6 c5 g6 h6 g7 c4 b7 e4 b5 c3 d7 c2 b6 e3 f6 e2 f7 e1Q f5 Qde8 d8Q+ Bd7 Bc4 Q8e4+ Kh5 Rh7 g4 Qe7 g5 Q1e3 g6 Qf2 Bb2+ Kc5 Nh3 Kb4 Qg1 c1Q Na3 Bc6 Bd4 Qfe3 Qd7 Qd3 Nf2 Na6 b8R Nc7 b7 Nb5 Rh3 Be4 Nh1 Bg2 Rg3 Qc5 Rg5 Ne7 g8B Nd5 g7 Qc7 Ra2 Bc5 f8Q Ndc3 Bgd5 Nb1 g8B Ka4 Bf2 Bd4 Bc6 Re7 Bgd5 Re1 Bf3 Rd1 Bfd5 Ra6 Bf3 Rb6 Nc2+ Qca3 Kg6 h5 Ne3 h4 Nf1 h3 Kh5 Ba1 Bc5 h2 Qe3 Bh8 Qee7 Bb2 Bg1 Ba1 Qc5 Bd4 Rb2 Qac3 Rb4+ Ka3 Re8 Qc1 b8Q Rb7 Re4 Rb6 Ra4+ Kb2 Rh4 N5c3 Ba8 Rb3 Qbb6 Nb5 Bfc6 Bh8 B4d5 Be5 Rhb4 Bd4 Nhg3 h1N Bc4 Nf2 Nh1 Ne4 Kh6 Ng3 Kg6 Ne4 Kh5 Ng3+
q3bb2/3N1Q1r/r4n1P/BQKBRRNN/qp1P4/nb5B/q5BR/k5N1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 b5 Kd4 g5 h4 f5 e4 g4 a4 f4 e6+ Kd6 h6 c6 h5 g3 a6 g2 h7 f3 e7 f2 e8N+ Ke7 d6+ Ke6 e5 Bg7 h6 Nf6 a7 Ba6 a5 Kf5 e6 Qc8 d7 Ne4+ Nf6 Bb7 d8Q Na6 e7 Bf8 e8N Nc7 Nd7 Nf6 a6 b4 Ng7+ Kf4 Qe7 Nb5+ Kc5 Na3 Nh5+ Kf5 d4 Qb8 Nf3 g1Q Nc3 Qg8 Ne2 Qa2 Bf4 Bc8 Be5 Ke4 Qa4 Kd3 Qb5+ Kc2 Re1 Kb2 Bh3 f1B Neg1 Bc4 Bc7 Bb3 Re5 Ka1 Rh2 Bb7 Ba5 Qd8 Kd6 c5 Ng5 c4 Kc5 c3 Rf5 c2 Re5 Rg8 h8R Bc6 Rh7 Rh8 Rf7 Bg7 Rf8 Rh7 Qf7 c1Q+ Rc2 Qd1 Rh2 Rb8 a8B Rb6 a7 Ra6 Bb7 Qe8 a8B Qf3 Nb6 Bd7 Bd5 Qd1 Bac6 Qa8 Bdg2 Be8 Bcd5 Bc4 Nd7 Qa4 Qg8 Bb3 Rf7 Ng4 Rff5 Nf6 Qf7 Bf8+
n3n3/3Q1b2/1krr2RP/2R1BpKR/3P1Qq1/RB3Q2/r3Nb2/1bQNBq2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 a4 c5 h4 Kc7 d4 f5 h6 b5 h7 g4 Kf4 c4 e4 b4 a6 g3 a7 b3 h5 c3 e6 b2 e5 c2 e7 g2 e8R Ba6 d6+ Kb7 d7 Qb6 d8R Qc7 a5 Be7 h6 Bh4 Ne2 g1R Rd5 Bg3+ Kg5 Qd7 e6 Qd8+ e7 Bd3 a6+ Kb6 Nbc3 b1B Bd2 c1Q Ra3 Qc8 Rh5 Bdc2 Rc5 Nf6 Rg8 Qc6 e8Q Qg2 Rg6 Qh3 Qd7 Rd8 h8B Bb3 Qc2 Bg8 Nd1 Bf2+ Bg2 Re1 Bd5 Bf7 Bb3 Rc8 Qe4 Rc6 Qf4 Ne8 Be5 Rd6 Bb4 Rf1 Be1 Qc4 Qe6 Nd7 Qc1 Rc8 a8Q Rcc6 a7 Rh1 Qc8 Rh2 a8Q Qcd3 Qec4 Qf1 Qd5 Qdh3 Qa4 Nc7 Qac4 Nf6 Qf3 Nfe8 Qcf4 Na8 Qcc1 Be3 Nec3 Ra2 Ne2 Bf2 Qd7 Qg4+
4qb1K/n2nN3/n6p/k1rB2q1/1r2RP1Q/1P1bqB1N/1RQ2B2/1R1B1Q1Q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 e5 Ke4 a5 d4 c5 g4 Kc7 f6 Kb6 f7 h6 d6 a4 d5 c4 d7 c3 Kf5 c2 Kg6 a3 d6 a2 Be2 e4 Rh4 e3 Bf3 e2 Be3+ Ka5 b6 c1N b7 e1Q Nc3 Qd2 Rb1 a1Q Nd5 Qe1 Nh3 Qe7 d8Q+ Ka6 d7 Ra7 Qc7 Qd8 Qcc2 Qe7 d8Q Qc7 Ne7 Qec3 Qh1 Bg7 f8Q Nd7 b8R Ra8 Kf7 Q3c5 g6 Qa4 g5 Nd3 Re4 Q7e5 Bd1 Qac6 f3 Qa5 Bf2 N3c5 Rb3 Rb8 Rb5 Bf6 g7 Qf4 g6 Qe3 Rb3 Qad2 Rb6+ Ka5 Rbb4+ Rb6 Rb3 Na6 Rbb4 Bh4 Rb3 Ngf6 g8B Nd5 Kg7 Ndc7 Bd5 Nb5 Qf4 Bg5 Qh4 Na7 Qf8 Rg8+ Kh7 Bf4 g7 Bd6 Qf5 Rf8 g8B Rb4 Kh8 Qa8 Qff4 Rf5 Bge6 Re5 Bg4 Bc5 Qf8 Qg5 Qf6 Qde3 f4 Rf5 Bgf3 Qc6 Qd4 Qcg6 Qdd3 Qe8+ Ng8 Re5 Qdf1 Bf8 Ne7 Rf5 Rd3 Bb7 b3 Bc6 Rd2 Bb5 Qc6 Be2 Rdb2 Bd3 Qc2 Re5 Bc4 Reb5 Bd5 Rc5
2B2B1N/5Q1b/RNq2bpB/NR1Q3R/rrq3nP/k1n1q1K1/BnP5/R7 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 d5 f4 Kd7 Kf2 e5 h6 a5 h7 a4 c6+ Kd6 f6 e4 f5 g6 c7 a3 b6 a2 f7 d4 b7 e3+ Kg3 e2 f6 d3 b5 Kc5 b6 Kb4 Nd2 Qd7 Nc4 d2 Nh3 Ne7 Nf4 Qc6 Na5 Nd7 b8R Ne5 b7 Bg7 f8Q Ng4 f7 Be6 c8B Bf6 Nd5+ Ka4 h4 Rg8 h8N e1Q+ Kg2 Rg7 Bc4 Qe3 Rg1 Ra6 Ra8 Rb6 b8R Rb4 Qf3 d1N Ra6 Nb2 Rb5 Ka3 Nb6 Nd5 Kg3 Nc3 Qe7 Bd5 f8B Bg8 Qf7 Bh7 Rd1 Rg8 Rdd5 Rg7 Rh5 Rg8 Rb1 a1Q Ba2 Rg7 Qd5 Ra7 Bd2 Ra8 Rh1 Qd1 Qf7 Qde2 Ra1 Qec4 Bc1 Qee4 Bch6 Qe3 Nb7+ Nba4 Ra7 Qec5 Q3d5 Q5d4 Na5 Qd2 Nb3 Qc1 Rc7 Ra5 Ra7 Nb2 Ra6 Ra4 Na5 Qe3+
1kBQ3n/1n2Rq2/Bq1bbPrB/B1r1r3/Q2N3N/R4p2/K2Q1n1P/4N1Q1 w - - 0 1 illegal: No proof kernel
1Rb5/6N1/q1QNprKb/2Q1BRNn/B2P1rN1/2Q2nPr/qR1R1n2/k7 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 f4 Kb4 d4 c5 f6 h5 g6 a5 b6 h4 d6 c4 g7 h3 g3 h2 f7 a4 b7 c3 d7 c2 Kf5 Kb3 Qd3+ Kb4 Nd2 a3 Nc4 a2 Kg6 Rh5 f5 Rh7 f6 Qe8 d8N Na6 b8Q+ Bb7 Qc3+ Ka4 b4 Bg2 b5 Bd5 b6 Be6 b7 Qc6 Nf3 Nb4 Qd6 Bd7 b8R Bc8 Ng5 Rh3 Bf4 Ra6 Rd1 c1R Rd2 a1Q Nde6 Nd3 Rg1 Qb7 Be5 Qab1 Qc7 Rd1 Bg2 h1N Bc6+ Q7b5 Qb6 Rf1 Rb2 Rf4 Rd1 Qa1 Rdd2 Ne1 Be8 Nf3 Bd7 Nh6 g8N Ng4 Nh6 Nhf2 Bc6 Bg7 f8Q Qa3 f7 Nf6 Bd7 Nh5 Ng4 Bh6 Ng7 Qb3 Qe6 Rc6 Qd6 Qa6 Qe8 Qa3 f8R Qb3 Rf5 Qa2 R2b5 Nf6 Qc5 Nh5+ Kh7 Rf6 Nd6 e6 Bc6 Qb3 Rb4+ Ka3 Ba4 Rh2 Qec6 Rh3 Qc1+ Qb2 Q1c3+ Ka2 R4b6 Ka1 Rb5 Rf7 Kg6 Rf8 Qe3 Qa2 Rbb2 Rf7 Qec3 Rf6+
B1B1N3/1Kb4k/b1P2n2/Q3qP1q/r2N2nr/RR1QR1Bp/2BR1b2/n6Q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 Kg7 Ke4 a5 Kd5 e5 b4 h5 f4 e4 c4 e3 g4 e2 c6 e1N c5 h4 g6 d6 g5 a4 c7 a3 b6 a2 b7 h3 b5 Ra5 b6 Nh6 f6+ Kg8 g7 Rh7 f5 Ra6 Nc3 Ra5 Bg2 Nc2 Bf4 Qe7 Ne4 Qd7 Qd3 Nc6 b8Q Rb5 b7 Be7 Qa8 Nf7 b8R Rb1 Bg3 Nce5 Nf3 Nd8 Rd1 Qa4 Nd4 Ba6 c8B Ne6 Rd2 Nf8 Rb3 Rh4 f7+ Kh7 g8R Nfd7 f8Q Qb5 Qd8 Ng4 Qa5 Bd8 Re8 Bc7 Bh1 Qb8 Kc6 d5 Nd6 Ndf6 Re3 Rf1 Ne8 Rf4 Rab1 a1B Ra3 Bc3 Rbb3 Na1 Bf3 Bb4 Bd1 Bc3 Bc2 Bb4 Nf3 d4 g6+ Kg8 g7 Kh7 Qc3 d3 g8B+ Kh8 Bge6 Kh7 Bd5 Re4 Nd4 Rf4 Rde2 d2 Qd3 d1Q Bf3 Be1 Rd2 Bd8 Bh1 Qe5 Bg2 Bc7 Be4 Bd6 Kb6 Bf2 Qc6 Bb5 Kb7 Bc7 Bh1 Qe2 Qg2 Qd1 Qg1 Qe2 Be4 Bc4 Qh1 Ba6+ Ka7 Be1 Nf3 Bf2 Ba8 Nh2 c6 Ra4 Nd4 Qf3 Qe2 Qh5 Qd3 Bb5 Kb7 Nhg4 Ne2 Bc4 Nd4 Ba6+
krNQ4/4qB2/BP6/rR2bb2/1n1pN1P1/n2r1R1K/1B1b1R1B/2R1Q1Qq w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 a5 Kf2 h5 Kg3 d5 b4 Kd7 c4 Kc7 b6+ Kb7 c6+ Ka6 b7 Ka7 g6 e5 c7 a4 c5 d4 c6 e4 f6 e3 f7 a3 b5 e2 g7 e1R f5 h4+ Kh3 a2 g4 Qd5 f6 Qd6 Bb2 Qd7 Nc3 Qd5 Rc1 a1B Nf3 Bd6 f8R Nd7 b8B+ Kb6 f7 Bc5 Nd2 Ngf6 g8B Qd6 Nde4 Qe7 Nd6 Nd5 Nce4 Nb4 Rg1 Re2 Qe1 Ra5 Rg3 Rd2 Rb3 Ne5 Bc4 Be6 c8Q Bd7 c7 Bf5 Qd8 Rd1 Bd3 Nc4 Nc8+ Kb7 b6 Na3 Ba6+ Ka8 Rf3 Bd6 Re8 Nac2 f8R Rd3 Bf7 Be5 Qg1 Na3 Qe1 Qd6 Re7 Rg8 Rd7 Qf6 Rd5 Qe7 Rb5 Rh8 Na7 Rg8 c8Q Rh8 Qc2 Rg8 Qh2 Rh8 Kg2 Rg8 Nc8 h3+ Kf1 Rh8 Qg1 h2 Kg2 h1Q+ Kf2 Bg7 Bh2 Rg8 Kg3 Bf6 Kh3 Be5 Bc3 Bb2 Rc2 Bc1 Bb2 Rg6 Rf2 Bd2 Rh8 Rd6 Rh6 Rd7 Rc6 Rb7 Rc1 Rb8
bNn1nB2/k3Nn2/Pbq1R3/7B/BQ1R1p1r/Nr1Q1Rb1/1P6/q2RK2N w - - 0 1 illegal: No proof kernel
2bQQ2n/1r1RQbr1/PB4qp/2NB2BP/KNqn1r2/6k1/Q6n/1N4BR w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 f5 g4 a4 gxf5 e6 e4 a3 e5 Qd6 bxa3 Be7 a4 Bd8 a5 Bf6 exf6 Qd8 d4 Kf7 Kd2 b5 Kc3 g5 Kb3 c5 h4 e5 a4 h6 a6 b4 a5 c4+ Ka4 e4 h5 e3 a7 b3 d6 g4 a6 b2 d5 g3 d7 e2 d6 e1Q Nh3 c3 Nf2 g2 Qd2 g1R Bc4+ Qe6 Bd5 c2 Nd3 Qf8 d8Q Nc6 d7 Qe8 Nb4 Rb8 a8Q Rg7 Ra3 Rb5 Rd3 Nge7 Qb8 Rb7 Qe5 Kf8 f7 Ng6 Qde2 Rhh7 Be3 c1N Bb6 Nd4 Qef6 Rg8 Qfe7+ Kg7 f8N+ Q8f7 Qde8 Ncb3 d8B Nf3 Nd7 Rf8 Nc5 Nbd4 Rd2 Nh8 f6+ Kg8 f5 Qg6 f7+ Kg7 Qc4 Nh2 Qa2 Qe2 Bdc7 Qd3 Bf4 Qc4 Be3 Ra7 Bg1 Rb7 Q7d7 Kf6 Qdd8+ Re7 Rd1 Kg5 f6 Rb7 Qde7 Kg4 Q8d8 Rg8 f8Q Rf7 Qfe8 Rgg7 Rd2 Rf8 f7 Kg3 Rd1 Rfg8 f8B Rf7 Qec7+ Rf4 Be7 Rg7 Qe5 Ne2 Bg5 Nd4 Na3 b1B Q5e7 Bbf5 Nb1 Bfe6 Be4 Nc2 Rd7 Bf7 Bd5 Nd4
3n3Q/NRn4P/3qQKBb/2r1Pn1R/k2r4/pbBq3R/r2R1NN1/5QQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 e4 f6 d4 c4 b4 g4 h4 c3 d6 g3 d5 c2 e6+ Ke8 h6 a4 b6 a3 h5 g2 e5 Qd7 b7 Qc7 b5 Qd8 d7+ Ke7 b6 Qe8 d8N Nc6 b8R Na7 h7 Bb7 h6 Qf7 d6+ Ke8 e7 Kd7 Nf3 g1N Nc6 Nb5 Bd2 c1R Ne1 Rc5 Bc3 Nc7 Bd3 Ne2 Rh3 Qd5 Na7 Nf4 Nd2 Nfe6 Ng2 Nd8 Qg1 Bg7 Kg6 f5 Ne4 f4 Nf2 f3 Qf1 Bc6 b7 Ba4 Rd1 Qc6 Rd2 Bb3 Kg5 Qd5 Bg6 Qd3 e8R Ne7 Qg1 Rf8 h8Q Nf5 h7 Rg8 Rf8 Bh6+ Kf6 Rg7 Qg8 Qa6 Qc4 Rg8 Qcf1 Rg7 Nb5 Kc6 d7 Qb6 Rh5 Ra4 Rh3 Qa6 Na7+ Kb6 Rh5 Rd4 Rf7 Rg8 Rc8 Qd3 b8Q+ Ka6 Qb4 Rf8 Qc4+ Kb6 Bb2 Ka5 Qe6 Ka4 Bc3 Qa6 Rb8 Qd6 Rb7 Rg8 Ne4 f2 Rf8 Nc6 d8Q Rg7 Rf7 Rg8 Qf8 Nd8 Rd7 Rg7 Qh8 Rg8 Rd3 Rg7 Rdh3 Rg8 Qc1 f1Q Nf2 Qd3 Qcf1 Bc4 Rb2 Bb3 Rd2 Rg7 Be8 Rgg4 Bg6 Rge4 Rg7 Re1 Rd7 Ra1 Rf7 Ra2 Rg7 Nb5 Rb7 Nc7
3r4/1b1B2BP/3R2qP/knBQN2n/3bN3/r2n2Q1/1qRp2Kb/3NN1QQ w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 g5 f4 d5 Kf2 Kd7 b4 Kc7 h4 a5 c6 Kb6 c7 e5 f6 g4 f7 a4 f5 g3+ Kg2 a3 f6 a2 c5+ Kb7 h6 d4 c6+ Kb6 h5 e4 h7 e3 h6 d3 Nf3 d2 Bb2 e2 Ne1 Bd6 f8B Ne7 f7 Be5 Nc3 Bb7 c8N+ Kc7 Nd6 Kb6 Nde4 Qe8 c7 Ra3 c8Q Bc6 Qg4 Ng6 Bc5+ Kc7 f8N Ra8 b6+ Kb7 b5 Rg8 Nd7 Bd6 Ne5 Na6 Qc1 Rf8 Nd1 Nc7 Qc4 Qe6 Qd5 Ra3 Rc1 a1B Rh5 Rd8 Rc2 Qf6 Qh3 Qg7 Qh1 Qf6 Rf5 Qh8 Rf6 Nf4+ Kg1 Nh5 Bh3 g2 Bd7 Qg7 Bbd4 Bc3 Kf2 g1Q+ Kf3 Be7 Rd6 Q1g6 Kf2 Bh4+ Kf3 Bg3 Kg2 Kb8 b7 Bh2+ Ng4 Qh8 Bg7 Bd4 Qg1 Qe6 Ne5 Qf5 Bb4 Ka7 b6+ Ka6 b8Q Bb7 Bc5 Nb5 Qc8 Ka5 Qcc6 Ba6 b7 Qg4+ Ng3 Qg6 b8Q Bb7 Qe6 Qf6 Ne4 Qg8 Qh3 Qb3 Qg3 Qg6 Qd5 Qb2 Qh1 Rh8 Qf8 Rg8 Qff1 Rf8 N1f3 Rd8 Qfg1 e1N+ Kh3 Nd3 Kg2 Nc7 Ne1 Nb5
1BQbbnB1/1RK3Pq/N1R5/2r1Nr2/3Q1pQ1/NPQ5/qnb1R3/2k2r1R w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kg3 f5 Kf4 a5 g4 h5 e4 c5 d4 a4 e6 Kd6 e5+ Kc7 b3 Kb6 d6 Ka5 g6 Kb4 g7 c4 d7 c3 g5 h4 e7 c2 e8Q h3 e6 h2 Ke5 a3 d5 a2 g6 Rh7 d6 Qb6 d8R Ra7 e7 Ra3 d7 Nh6 g8Q Qb7 Kd6 Ng4 b6 Ne5 Bf4 c1R Nf3 Rh5 Bc4 Nd3 Qg7 Ra5 Na3 Nb2 Bg8 Rac5 Ne5 Kc3 Qg4 Rf1 Rb1 Qe4 b7 a1Q Rc1+ Qc2 Bg3 Kd2 Qf6 Bh6 g7 Bg5 Qef8 Qa2 e8R Bh4 Re7 Qcb1 Rde8 Qe4 d8Q Nd7 b8N f4 Bf2 Qg6 Na6 Qh7 Bg1 Bb7 Qc8 Bc6 Kc7 Rf5 Q8f7 Qa1 Qc4 Qa2 Rc3 Nf8 Qd4+ Nd3 Rf7 Bg5 Re6 Be8+ Rc6 Bh4 Rc1 Bg5 Re1 Bh4 Re2+ Kc1 Kd8 Bg5 Rb7 Nb2 Kc7 Bh4 Bf2 Bg5 Be1 Bh4 Ba5 Bg5 Bb6 Bh4 Ba7 Bg5 Rg1 h1B Bb8 Be4 Rh1 Bc2 Qc3 Bh4 Qfd8 Bf6 Qdd4 Bd8+
1bB2n2/2RN2P1/Q4qn1/qN1N3p/1KB2q1N/1Q1b4/2PBkrb1/R1R1B2r w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 h5 b4 a5 f4 e5 g4 d5 b6 a4 b5 d4+ Kb4 e4 b7 a3 f6 Kg6 f7 e3 b6 a2 f5+ Kh7 g6+ Kh6 g7 Kg5 f6 Kf4 g5 d3 g6 d2 Na3 e2 Nf3 Ke3 Nb5 e1Q Qe2+ Kf4 Nh4 Nh6 g8N Ng4 g7 Qf2 Ne7 Nd7 b8B+ Nge5 c6 Ba6 c7 Ng6 c8B+ Qc7 Qc4+ Ke3 b7 Qff4 Ba7+ Qb6 b8Q Kf2 Bd3 d1B Bd2 Bf3 Rhc1 Bg2 Qd6 Rh6 Nd5 Be7 Bb8 Ndf8 Bc7 Qbd4 Ba5 Bd8 Qe6 Bc7 Qd6 Bb8 Qe6 Nh7 f8R Qb6 Rf7 Nhf8 Rc7 Qc6 Rab1 a1Q f7 Qa2 Qh3 Qcf6 Ra1 Ra7 Be2 Rh8 Qb3 Rb7 Kc5 Qa3+ Bab4 Qa5 Bbc3 Ra7 Qca4 Rb7 Bc4 Rb6 Qaa2 Re6 Qaa4 Re1 Bb4 Rh1 Qaa3 Nh7 f8N Rg8 Nd7 Rf8 Bbc3 Rf7 Qaa4 Nhf8 Qaa2 Be4 Qaa4 Bb7 Qaa2 Bd3 Be1+ Ke2 Bcd2 Re7 Qaa3 Re3 Qaa2 Rf3 Qaa4 Rf2 Qaa2 Qab6+ Kb4 Bc6 Qa6 Ba8 Ne7 Bg2 Nd5 Qa5+
Q2bRn1q/2kBK1P1/2B3p1/N2QR1N1/1r6/Qq3B2/1P2bq1N/BN2nr1r w - - 0 1 illegal: Other
nQ1K2k1/NR2q1p1/N2B4/R1Rr2Br/1bbB1P2/4NnP1/2Qr2R1/1q2n2B w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 f5 e4 h4 exf5 h3 Qh5+ Kd7 Qh7 Ke8 Nxh3 Ba6 Ng1 Bc8 Ke2 Kf7 Ke3 e5 Ke4 a5 b4 c5 d4 a4 f4 a3 h4 c4 b6 c3 g3 c2 f6 a2 d6 Na6 Kd5 e4 Kc6 e3 d5 e2 b7 e1Q b8Q Bg4 b5 Nc5 b6 Be7 d7 Nb7 d6 Qd2 h5 Qe2 h6 Ra3 Be3 c1R+ Nc3 Qh2 Bg2 Qh5 Rh2 Be2 Qc2 Rb3 h7 Rb4 Nf3 Qg6 Nd1 Rd4 Ne5+ Kf8 f7 Bf1 Bh1 Ra4 Bd4 Nc5 b7 Ne4 Ne3 Be2 Rg2 Rd1 Nd3 Qe8 Kc7 Rd2 d8B Ra5 d7 Rd5 Nc5 Ng5 Na6 Nf3 Rc1 Bb4 Bg5 a1N d8N Nf6 Nc6 Bc4 Na7 Rg8 h8R Nd7 Rh5 Rh8 Ng4 Nb6 Ne3 Nb3 Ra1 Nc1 Ra5 Nd3 Rc5 Nde1 Ra5 Qf6 Rc5 Ke7 f8B+ Kf7 Bd6 Qg6 Ra5 Qe5 Rc5 Na8+ Kd7 Rh6 Kd8 Kg8 Qc7 Bc3 b8R Bb4 Rb7 Qd3 Qb8 Qe7+ Kc8 Qb3 Ra5 Qb1 Rc5 Qe6+ Kd8 Rh7 Ra5 Qf7 Rc5 Qe7+ Kc8 Qa1 Ra5 Rf5 Bh4 Qb1 Bhf6 Qf7 Kd8 Rb5 Re5 Rh5 Bg5 Rc5 Re4 Rf5 Ree5 Qe6 Reb5 Rd5 Rc5 Qe7+
n7/1n1b1P1q/rP2B1RK/1bB1bNR1/2r1k3/R7/1p1B1qqQ/N2N1RQB w - - 0 1 illegal: No proof kernel
nRb1r3/2b2P2/1PnB1pB1/4N2N/1Rq1R2Q/Q3R2q/b2KN1BB/k4r1n w - - 0 1 illegal: No proof kernel
q1Bn1BN1/4Pq2/2Q4Q/Rq3P1b/N4K1R/kpB1Q1R1/1rn1r2b/3Q1R1b w - - 0 1 illegal: No proof kernel
R5B1/2RKPnn1/1BQNN2N/3P2qb/r3Q3/1kbrp1n1/R1qBBR2/2q5 w - - 0 1 illegal: No proof kernel
Q1b2q1b/b1rRPBN1/2pr2q1/2B2Q1B/1n2QR2/3nQBR1/P2K4/rk4N1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Ke7 h4 b5 d4 g5 e6 Kf6 a6 b4 e5+ Kf5 d6 Ke4 h6 f5 a7 b3 d5 f4 h5 g4 h7 f3 e7 f2+ Kd2 g3 e8B g2 e6 b2 d7 Bd6 h6 Bg3 e7 Kd4 d6 Bh2 Qa4+ Kc5 Nc3 b1R Nb5 Bg3 Rh3 Bb7 Bf7 Qe8 d8Q Qc6 d7 Bc8 Qf8 Qg6 d8R Be5 Be2 f1Q Rg3 Nc6 Bh5 Nb4 Ba3 Nf6 Nd4 Ng4 Nf5 Nf2 Rd7 Nd3 Ng7 Rb8 a8B Rb6 Bb7 Rd6 Bbf3 Kd4 Qc2 Rg8 h8Q c6 h7 Rc1 Qb3 Re1 Rc1 Bf6 Rc5 Ra1 Rf5 Be5 Qd8 Re8 Qf8 Bf6 h8Q Be5 Nh3 g1B Qh7 Bf2 Qa5 Rd8 Qa8 Bg1 Ne8 Bh8 Ng7 Bf2 Qe6 Re8 Ng1 Rd8 Ra7 R8d7 Qh6 Rc7 Rf4+ Kc5 Qe4 Kb5 Ra6 Ba7 Rb6+ Ka4 Rb7 Qh3 Qg5 Qh4 Qc5 Qhf6 Qce3 Qff5 Bb2 Qff6 Bd4 Ka3 Bb6 Kb2 Bc5 Bh3 Qfc8 Kb1 Qcf5 Bg4 Be8 Qf8 Bf7 Rc8 Rd7 Bh3 Qf6 Be6 Qff5 Rc7 Rd8 Bc8 Rd7 Qh6 Bb3 Qhf6 Bbf7 Qg6
N3R2Q/1B1P4/B2B1NbQ/3q2NK/3Pn1nn/1kNp4/1q1r1bQq/2Rr2B1 w - - 0 1 illegal: No proof kernel
BNB1k3/1QKpPb2/1Bq5/2R1N1n1/QR3nqr/2Pqr2b/1N5b/2N2Q1Q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 f5 Kc3 g5 Kc4 a5 Kd5 f4 b4 g4 h4 g3 e4 f3 c3 a4 b6 a3 b5 a2 h6 f2 h5 g2 h7 Ra6 h6 Bg7 Kd6 Ra8 b7 Nf6 b6 Ng8 c6 Qf6+ e6 Qf8+ e7 Bd4 c7 Na6 b8N Qf3 b7 Qg3+ e5 Nf6 Be3 Qg4 Na3 Qg8 Ne2 g1Q Nc4 Qf7 Rb1 a1Q Nb2 Qfa2 Qa4 Nh5 Nc1 Bb6 Bg2 Ba7 Bb6 Nf4 Rh5 f1B Be4 Rf8 h8Q Bh3 h7 Qc4 Qf6 Nc5 h8Q Qg7 Nc6 Qg4 b8N Ba6 c8B Qd3+ Kc7 Bc4 Qh7 Rh8 Rf5 Bf1 Qh1 Bf7 Rh5 Bh3 Bg2 Ne2 Qff1 Nf4 Rg5 Rh4 Rf5 Bc4 Bf3 Ne4 Rg5 Kf7 e6+ Kf6 e8Q Qa3 Nd1 Qd2 Bf2 Qg3 Bb7 Bc5 Na6 Qd3 Qb8 Qg4 Bg2 Qa2 Rb4 Bd4 Qa7 Re8 Nab8 Qb3 Rd5 Ng5 Nb2 Kg7 Be3 Kf8 Bc8 Qbd1 Bg1 Q1f3 Re5 Bf2 Qa8 Be1 Bb6 Bg3 Rc5 Bh2 Q8a6 Re7 Qa8 Ke8 Q8a6 Reh7 Qa8 R7h6 e7 Re6 Q8a7 Re1 Ne5 Re3 Q7a6 Qfd5 Bf3 Qde6 Ba8 Qh6 Qa7 Bf7 Qab7 Qc6+
rQQ1r1Rq/2PRQb1b/2Qn1P2/bB1pB1N1/1kqB1R2/8/3q1KN1/2n1B3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 a5 b4 h5 c4 d5 f4 Kd7 g6 e5 g7 e4 f6 h4 f7 h3 c6+ Kd6 g5 a4 b6 a3 b7 e3 b5 Kc5 g6 e2 c7 h2 b6 a2 f5 Kb4 f6 Rh7 c5 Na6 b8Q Rh5 b7 Rh7 c6 Ne7 g8Q Ra7 g7 Kc5 Bd2 Be6 c8Q Bg4 Qc2+ Kb5 Nh3 Rh6 Qgh7 Bh5 g8R Nf5 Kf2 Ra8 Nf4 Nd6 Nc3+ Kb4 Be1 Nc5 Ng2 Nb3 c7 Be7 f8B Bf7 Rc1 a1Q Ne4+ Qc3 Ng5 Qd2 Qc6 Qc3 Rg1 h1B Ra1 Nc1 Ra4+ Kb3 Qg7 Rh8 Rf4 Qc4 Qh7 Qe8 Bh6 Qf8 Qe4 Qg7 Rd8 Re8 Rd7 Qh8 Qe5 Nb5 Bf8 Bb4 Bd6 Bc3 Qe7 Ba5 Be5 Nd6 Qa7 Ka2 b8B Ka3 Qab6 Qf8 Ba7 Qh8 Nh4 Bf3 Qbb8 Be4 Bad4 Bf5 Ne4 Bh7 Rg8 Bb4 Ng2 Ba5 Bb4+ Kb3 Ng5 e1Q+ Kg1 Qd1 Be1+ Ka3 Bd3 Qd2 Be2 Qcc3 Bb5 Kb4 Kf1 Qc4+ Kg1 Qdc3 Kf2 Qd2+
4q2r/bPk3r1/bnNrB3/2R5/N5PQ/pqbN1N2/BBnR4/BKRQ4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 f4 e5 d4 a5 Kd2 c5 Kc2 h5 b4 e4 d6 h4 f6 c4 b6 h3 f5 c3 f7 h2 f6 a4 b7 a3 b5 e3 d5 e2 b6 e1B g6 Ne7 g7 Bh4 g8B Ra4 Bc4 Rh5 Ba2 Bf2 Nf3 Rh8 Bb2 Bh6 f8B Nec6 f7 Bfe3 Bg7 Beg5 f8N+ Ke8 Ne6 Kd7 Nf4 Rd4 Nd3 Qe8 Be6+ Kd8 d7 Bf6 Re1 h1R Re5 Be3 Rf5 R1h7 Rh5 Na6 b8N Nc5 Rg5 Ba6 b7 Kc7 d8R Nd7 d6+ Kb6 Rc5 Nb4+ Kb3 c2 Nc6 c1Q Nc3 Qd2 Rc1 Nc2 Ba1 Qh2 Bb2 Qh3 Ba1 Nb8 d7 Kc7 Na4 Rd6 Bb2 Bc3 Bd4 Nb4 Bf6 Rg7 Be5 Nd5 Kc2 Nb4+ Kb1 Nc2 Ba1 Ba5 Beb2 Bc3 Re5 Ba7 Rc5 Qg6 Rf8 Qe8 Rff5 Rgh7 Rh5 Qg3 Rh2 Rg7 Re2 Qe1 Rd2 Qe3 Ra5 Qb6 Rc5 Qb3 Rf5 Rd4 Re5 Kd6 d8Q+ Nd7 Qf6 Nb6 Qh4 Kc7 Rc5 Rd6
RR2N3/Bp2N2B/1n5q/KNb2P2/Q2bq1RR/1qrQ2PB/1kr1b3/nB6 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Kc3 e5 Kb4 h5 a4 d5 f4 e4 c4 d4 g6+ Kf6 a6 e3 g7 d3 g3 e2 a5 e1B+ Nc3 h4 a7 d2 a6 h3 Ne4+ Kf7 f6 Ke6 f7 h2 Ra4 Qf6 Bd3 Nd7 Ka5 Kf5 c6 Nh6 g8B Ne5 c7 Qd8 c5 Qd5 Ne2 Qc6 Nf6+ Qe4 c6 Nd7 Bb1 Bf2 Nc3 Nb6 Ne8 B8c5 Nb5 Ng4 Bh7+ Ke6 f8N+ Kd5 Ng6 Bfd4 Qc2 d1Q Qd3 Be6 c8R Qb3 c7 Ne3 Rb8 Nc2 c8B Bg4 Be3 Be2 Bh3 Na1 f5 Rf8 Rc4 Rf7 Rb4 Rc7 Ne7+ Ke5 Rd8 Rb8 a8R Rbc8 a7 Rc6 Rb8 R8c7 a8Q Rc8 Rc1 h1Q Rcc4 Qc1 Bg1 Qh6 Ra4 Ba3 Rcb4 Rc2 Qa7 R8c3 Ra8 Bc5 Rdb8 Bb2 Rd4 Qg2 Rf4 Qe4 Rg4 Rc4 Ned6 Nd7 Ndc8 Qh1 Rg7 Bca3 Ncd6 Rc7 Rf4 Qe4 Rh4 R7c4 Qa6 Rc7 Ba7 Nb6 Ne8 R7c4 Nbc7 Bc5 Qb5 Bc3+ Qb4 Bb2 Qf3 Kd4 Rgg4 Bc3 Qh1 Kd3 Nb5 B3d4 Qa4 Kd2 Qg1 R4c3 Qe3+ Kd1 Qf3 Kc1 Qd3 Kb2
k4BB1/P1QNq1q1/3R1R2/4r2B/BbP1nr2/N1R3Q1/1pN2b1N/3q1Knb w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 f4 d5 a4 Kd7 h4 Kc6 c4 b5 h6 Kb7 f6 e5 c6+ Ka7 a6 g5 a5 e4 f7 e3 c7 d4 h7 e2 h5 d3 f5 b4 f6 g4 h6 b3 Na3 b2 Qb3 g3 Nf3 g2 Rh3 g1Q Nh2 Bd7 c8B Bg7 f8N Qc7 f7 Qd6 Ne6 Qgb6 f8N Qe5 Nd4 Qec7 Ndc2 Be8 Bd7 Qe6 Ba4 Ne7 Nd7 Rg8 h8R Bd4 h7 Ng6 Bh6 Nf4 Rd1 Rg5 Rf8 Re5 h8Q Qe7 Qg7 Bh5 Rf3 Nh3 R8f6 Ng1 Qf7 Bc5 Bf8 Bb4+ Kf2 d2 Rc3 e1B+ Kg2 Qe6 Be2 Bf2 Kf1 Bf3 Qg7 Bh1 Bh5 Qe7 Qg3 Bd6 Qb5 Bb4 Qc6 Qg7 Qd6 Qd8 Qc6 Qde7 Qc8 Nc6 Qd8 Rc8 Qc7+ Ka8 a7 Re8 Re1 Rf5 Ree6 Nd4 Rd6 Nb3 Qd8+ Kb7 a8B+ Ka7 a6 Rf4 Be4 Nc5 Bh7 Ne4 Qc7+ Ka8 a7 d1Q+ Ne1 Qd8 Bg8 Re7 Ra6 Re5 Rad6 Qf3 Nec2 Qde7 Ra6 Qfg4 Rad6 Qd1+
1r2k2r/p1K3BN/1Pn5/1bBqrnN1/2B3RB/PqNQ4/R5Q1/RR3n1b w - - 0 1 legal: proof: g4 b5 h4 g5 c4 f5 gxf5 e5 cxb5 g4 d4 Be7 dxe5 Bg5 hxg5 Kf7 Kd2 Kf8 Ke1 Ke8 Kd2 c5 Kd3 d5 f4 h5 e4 g3 b4 h4 f6 h3 g6 d4 Kc4 h2 g7 g2 f5 d3 e6 d2 f7+ Ke7 f8N Nd7 Kd5 c4 Kc6 c3 a3 c2 b6 Rh7 e5 Ba6 f6+ Ke8 f7+ Ke7 b7 Qa5 b8B Nh6 g8R Bc4 b5 Kd8 b6 Be2 e7+ Kc8 e6 Bc4 Nh3 g1Q Be5 Be2 Bg7 Rh8 Nh7+ Nf8 N3g5 Rb8 Nc3 Nf5 Ra2 Ba6 Bc4 Qg3 Qe2 d1N Qd3 Qae5 Bf4 Qh3 Bg3 c1R Bh4 Nde3 Rg1 Rc2 Rga1 Re2 Rb1 Qd4 e8Q+ Qd8 e7 Ne6 f8B Nf1 Qf7 Re5 e8R Qg3 Qh5 h1B+ Qhf3 Qh3 Re7 Qd4 Rba1 Kd8 Qg2 Qe3 Rd7+ Ke8 Rd5 Nd8+ Kc7 Qg3 Rb5 Nc6 Rbb1 Bb5 Ne6 Qg6 Neg5 Qf6 Bc5+ Qf8 Bh6 Qd5 Rg6 Qfg8 Bg7 Qgf7+ Be7 Ra8 Ne6 Qc5 Bd5 Re3 Rg4 Re5 Neg5 Rb8 Be6 Qb4 Bc4 Qd5 Bc5 Qb3
2n3KN/pPn5/BB1P1k2/R3r1nQ/2q5/b1B1Rr1b/1Q3R2/1QqRN1Qq w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 c5 Kg4 g5 h4 e5 f4 c4 d4 c3 b4 c2 d6 e4 b6 e3 b7 e2 d5 e1N h6 Nf3 Kh5 g4 f6 g3 d7 g2 f5 Be7 d6 Nc6 b8Q Nd2 b5 Qa5 d8B Be6 b6 Bd7 h7 Nc4 Nf3 g1Q Ng5+ Kf8 Kg6 Qe1 h5 Qa5 f7 Qb5 h6 Be8 Bb2 c1Q Ra5 Qf2 Nd2 Ne3 Bc3 Ng2 Ndf3 Qbe2 Ne1 Qa2 Ba6 Qg1 b7 Nb4 Bb6 Qd5 Qd3 Qc4 Qb1 Bd8 Qc7 Nd5 Qc5 Qgf1 Qg1 Nc7 Rh3 Rb8 Re3 Ne7+ Kf6 Rg8 h8Q Nh4 h7 Qf3 Qb2 Qh1 Qb1 Ncd5+ Ke6 Nf3 Qd4 Ba4 h8Q Nc8 Qh5 Bf6 Qe5 Kg7 f8R Ra8 Qeh2 Bd4 Qhb2 Be5 Re8 Rf8 Rd3 Bd4 Rd1 Bc2 Nf7+ Ng5+ Kd7 Nc7 Re3 Re8 Nh8 Re5 Kd8 Bc5 f6+ Kf8 f7 Kg7 f8R Ba3 Rf2 Bf5 Qe4 Kf6 Qeb1 Nce6+ Ke8 Nc7+ Kf8 Rb8 Rh2 Bh3 Rf2+ Ke6 Kg8 Ne7+ Kg7 Rf8 Rf7 Nc8 Rf2 Rf3 Kg8 Kf6+
1bk4B/2Bb1n1R/4B2N/Q1Q1KRnr/N2P2qQ/1B5r/2r2pP1/rr4RR w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 c5 Kf4 h5 b4 a5 e4 f5 g6 a4 e6+ Kc7 g7 h4 e5 c4 d6+ Kb7 d7 a3 b6 h3 b5 c3 e7 a2 e8Q h2 e6 c2 e7 Na6 Qg4 Nf6 g8B Ra7 Qh4 Nh5+ Ke5 f4 Bb3 f3 Nc3 f2 Na4 Rh6 Ne2 Rh7 Bb2 c1R Ng3 Nc7 Nf5 Ng3 Nh6 Nd5 Bfc4 Ra5 Qeh5 Nf5 e8R Rc2 Re7 Qe8 d8Q+ Qd7 Rag1 Nc7 Be6 a1R d3 Kb8 b7 Nd6 Q5g5 Rh8 Rh7 Rb1 Qe3 Ra6 Qc5 Nf7+ Kf4 Bg7 Bf6 Bf8 d4 Bd6+ Ke4 Na8 Qa5 Nc7 Bec4 Qh3 Be6 Bd7 Bg7 Ne8 Kd5 Ng5 Be5 Bc7 Bf6 Nd6 Ke5 Qg4 Bg7 Rf8 Bh8 Rf3 Qc6 Ka7 b8R Rh3 Rf8 Bb8 Qc5+ Kb7 Rf5 Ndf7+ Kf6 Bc7 b6 Kc8 b7+ Kd8 b8B Kc8 Qe7 Bd6 Bc7 Bf4 Bb6 Bb8 Bc7 Ra8 Qec5 Ra6 Re1 Ra7 Rhg1 h1R Ref1 R1h2 Rh1 Ra6 Rfg1 Ra7 Qg3 Rh5 Qh4 Rh3 Qe1 Rh2 Nc3 Ra3 Na4 Raa1 Qea5 Nd8 Ke5 Rh3 Kd6 Ndf7+ Kd5 Nd6 Ke5 Ndf7+
3k3n/3b1b1R/1Nn1b1Q1/BNbBbr2/1P1QR2K/4NP1p/B5Rq/3r2BR w - - 0 1 illegal: No proof kernel
1B3b2/2Qb1QPQ/1RrN1B1n/1KRn4/B1n1P2p/5R2/N3B2n/2r1knqQ w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 Ke2 f5 Kd3 h5 Kc4 c5 d4 f4 g4 a4 b6 h4 b5 a3 b7 f3 b6 f2 e6 Kd6 g6 a2 g7 Ra7 e7 Ra6 e8B Rh7 g5 Ra8 g6 Nd7 b8B+ Qc7 b7 Rh8 Kb5 c4 Nd2 c3 Bb2 c2 Be2 f1N Nc4+ Ke7 d6+ Ke6 Rh3 c1N Rf3 Ne5 d7 Rh6 d8Q Qf7 Nd6 Nc4 Qc7 Nb3 Rc1 a1N Bc6 Bd7 d5+ Ke7 Rcc3 Nc2 Qa1 Nh2 Qb1 Nb6 Rc5 Nc4 Bd4 Nb4 Qa2 Nf6 g8Q Nbd2 g7 Nfg4 Qh7 Qg6 Qb1 Ra1 Qf1 Nb3 Qg2 Rb1 Qh1 Nbd2 Bd3 Nce3 Rc1 Rh5 Ne2 Nef1 Nf5+ Kf7 d6 Ng3 Nc3 Rh6 Be2 Nd5+ Ka5 Ke6 Bba7 Ngf1 b8R Ra1+ Ba4 Bb5 d7 Bc6 d8Q Bd7 Rc2 Rc1 Na2 Qg5 Rc5 Nc4+ Ka6 Rf6 Rbb5 Nh6 Bb8 Qg1 Ba1 Rg6 Rb7 Rf6 Rb2 Rg6 Qe8+ Kf6 Qe6+ Kg5 Rb6 Kg4 Qf7 Rd6 Bf6 Rc6 Rf4+ Kh3 Nd6 Kg3 Rf5 Ng8 Kb5 Nh6 Rg5+ Kf2 Rg3 Ke1 Rc3 Be7 Rf3 Bf8
kNr1N3/N1RKpBR1/bn5Q/3PQ3/3b1Brn/Bq4bP/Q5Q1/b2B3b w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 g5 d4 b5 a4 Kb7 f4 g4 h6 g3 h7 c4 f6 b4 d6 g2 h3 b3 d7 c3 Ke6 c2 a6+ Ka7 f5 b2 a5 Qe8 f7 Qd8 f6 Nc6 Qe2 Bh6 f8B Qc7 f7 Bg7 Na3 b1B Nb5+ Kb8 a7+ Kb7 a6+ Kb6 Nf3 g1B Nd2 Be5 Bh6 Bg7 f8Q Bb7 d8N Qh2 Kd7 Qf4 Ne4 Bf2 Ba3 c1B Nf6 Be1 Ne8 Bb2 Qg2 Qb8 Bc4 Bc2 Rg1 Bd3 Rc1 Nb4 Nc6 Bh4 Bf7 Nd5 Bf4 Ba1 Rc2 Bgf6 Qh6 Bg3 Rc3 Be4 Qa2 Bh1 Rg2 Qe5 Nb8 Qe3 Rc7 Qb3 Rg1 Bf2 Rg7 Bg3 Qg5 Nh6 Qe5 Rg8 h8Q Nf5 Qh6 Qc2 Nc6 Rb8 a8B Qb3 a7 Rc8 Nb8 Ba6 Bc6 Nh4 a8Q Nf3 Na7 Nh4 Rh7 Rg4 Ba4 Ne3 Qf3 Nc4 d5 Bd4 Rg7 Ba1 Rc6+ Kb7 Rc7+ Ka8 Qfe2 Bd4 Qg2 Ba1 Qee4 Bfd4 Qe5 Qb6 Bc2 Qb3 Bd1 Nb6+
R4R1r/K2r4/NB1QbB2/N1nr3N/1Q2b1BP/Q1b2n2/1N1pkPQ1/2r1q3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 Ke4 c4 g5 a4 d5 c6 e5 c7 d4 Kb6 d3 a6 g4 a5 g3 a7 g2 c5 Bg7 f6 Bd7 f7 Bb5 f8Q Nh6 a6 Qd4 c8Q Qc3 c6 Qe1 c7 Nf7 h6 Qe2 h7 Nd8 Qh3 Bf6 c8N Nf7 Ne7 Rg8 h8B Rg7 Be3 Bc4 Nc6 Qe1 Qb4 Ng5 Na5 Nf3 Ne2 g1R Na3 Rd7 Nf4 Rg5 Qg2 Rf5 Bd4 Be6 N3c4 Bg7 Nb2 d2 Qd6 Rg5 Qa4 Rh5 Qab4 Rf5 Kc5 b5 Kb6 Rg5 Nh5 Bf6 Qbc5 b4 Be2 b3 Qb4 Rf5 h4 Rg5 Rh3 Rf5 Nbc4 b2 Bc5 b1B Nb2+ Bc4 Bd4 Be6 Rg3 Bc2 Rg8 Bg7 Rf8 Bd3 Na4 Bb1 Bd1 Kd3 Ra2 e4 Be3+ Nd4 Bg4 Rd5 Ra1 Nf3 Nb2+ Ke2 Ra3 Bc3 Bf6 Rd8 Kb7 Bc2 Bb6 Nd7 Ra1 Rac8 a8N e3 a7 Be4 Nc7 Ra8 Na6 Nc5+ Kc7 Rab8 a8Q Rb7+ Kc6 Rh7 Ra4 Rh8 Kc7 Rd7+ Kb8 Rd8+ Ka7 Rd7+ Qb7 Rf5 Ra1 Rd5 Qa3 Qh1 Qb3 Re5 Ka8 B6d5 Ba7 Rd8+ Nb8 Be6 Nac4 Rd5 Q7b4 Rd7 Bb6 Qc1 Ra4 Ke1 Q3a3 e2 Ra7 Qa1 Na5 Qb1 Na6 Qa1 Qgg3 Kf1 Kb8 e1R Ra8 Ke2 Qg2 Rc1 Qab3 Rc2 Q4a3 Qe1 Qbb4 Nb7 Ka7 Rc1 Qf4 Nc5+ Qc7 Nb7 Qcd6 Nc5+
1N1Q1qbk/2rBNQNB/3nn1b1/5bb1/4NB1P/p4Q1K/R1rBPr2/4R3 w - - 0 1 illegal: No possible last move
bQ2brk1/1BRrR3/1br3Nr/Bq4p1/1Q1n2NP/B4KR1/2R1P1Q1/3n2B1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 h4 f5 d4 Kf7 b4 g5 h6 a5 e6+ Kf6 h7 Kg7 e7 c4 e8R a4 d6 c3 d5 f4 d7 f3 d6 c2 b6 a3 b5 a2 b7 Qf6 d8B Nh6 b6 Qe6 d7 Qe7 Qd5 Qf6 Nd2 Bd6 Re7+ Qf7 Bg2 Nf5 Nf1 Be5 Rh3 Bc7 Nh2 Ne3 Rg3 Nc6 b8Q Nd4 b7 Bb6 Nh3 Ndf5 Ba3 c1R Ng4 Rc6 Rc1 a1R Rc2 Rd1 Nf4 Rf8 h8B+ Kg8 Be5 Ra6 Ng6 Qe6 Qe4 Qc4 Bd4 Qb5 Qbf4 Rd2 b8Q Bb7 Bc7 Ba8 d8R Rd3 Rdd7 Nd1+ Kf1 Rd2 Bg1 f2 Qb4 Rd4 Qf3 Rd2 Bd8 Rd5 Rc7 Rd7 Nh8 Rh6 Ng6 Bc6 Bh1 Ba8 Kg2 f1B+ Kh2 Bg2 Qf1 Bh3 Bb7 Bg2 Qf2 Bc6 Qf1 Rd5 Kg2 Be8 Kf3 Rd7 Qf2 Bc5 Qg2 Rc6 Rc8 Bf2 Ba5 Bb6 Rc7 Nd4+
1n1Brb1Q/2NR3B/R4b1q/nb2r1p1/1P4Q1/NP1Bk2N/3NB1Kr/1b3Q2 w - - 0 1 legal: proof: g4 d5 f4 b5 c4 h5 gxh5 e5 fxe5 b4 cxd5 b3 axb3 Be6 b4 Bc8 Kf2 Kd7 h4 f5 d4 a5 e4 c5 b3 g6 h6 a4 h5 c4 e6+ Kd6 h7 a3 e7 c3 e8B a2 e5+ Ke7 d6+ Ke6 h6 Kd5 e6 Ke4 d5 c2 e7 f4 d7 f3 d6 Qc7 d8N Bg7 d7 Qa5 Na3 Na6 Nf7 Bb7 d8N Nf6 Ne5 Nc5 Nec4 Ra6 Nh3 Qb6 Bg5 c1R Bb5 Nfd7 e8B Nb8 Ne6 Bf8 Be2 Ra5 Bd8 g5 Nc7 Ba8 Qf1 Nb7+ Kg3 f2 Nd2+ Ke3 Bbd3 Re5 Beg6 Na5 Rh2 Rg8 h8Q Be4 h7 Qd6 Bf5 Qh6 Qf6 Rd1 h8Q Re1 Rd1 a1B Bh7 Bb2 Qg2 Rh1 Qf1 Bc3 Qe6 Bg6 Qg4 Be4 Qe1 f1B Rf2 Bg6 Rf6 Bf5 Ra6 Bg6 Bc4 Bb1 Bcd3 Bb2 Bf3+ Be2 Qf1 Bc3 Kg2 Ba1 Bdf5 Bb5 Bd3 Bd6 Bde4 Rc5 Be2 Bf6 Nf3 Re5 Bc2 Bc5 Rd7 Rge8 Nd2 Bf8 Bcd3 Rh2+
1r1R4/B1BnrqR1/Q1r1r1b1/K1Pp3Q/n5BQ/1B2PR2/R1NbN1k1/7n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 c4 Ke4 h4 d5 b6 f5 e6 g5 h6 a6 b7 f4 h7 g4 h5 f3 e7 f2 e8Q+ Qe7 h6 g3 Be3 g2 Qb5 Bg7 Na3 Bd7 Ra2 Qg5 c6 Qf6 c7 Qf3 c8B Be8 Ba7 Nd7 b8B Ne7 e3 Qf7 Ne2 Kf3 c5 g1R Ka5 Bc3+ b4 Rg6 Bc7 Re6 Rg1 Rb8 Nc2 Bd2 Rg7 Rbb6 Qa4 Rbc6 Qa3 Rf8 h8Q Rg8 h7 Rf8 Bh3 f1N Bg4+ Kg2 Qe1 Rg8 Qh4 Ng3 Qa4 Nh1 Bb7 Rcd6 Bc6 Nc8 Qa3 Rf8 Ba4 Rc6 Bb3 Ncb6 Qh5 Na4 Qh4 Bc1 b5 Re7 b6 Bd2+ Nc3 Ree6 b7 Re7 b8R Rce6 Kb4 a5+ Kb5 Rc6 Ne2 Rg8 Rg5 Rgg6 Rd8 Rge6 Qe5 Qf5 h8R Bg6 Rhf8 Qf7 Ra1 Nab6 Ra2 a4 Qc1 a3 Qca1 Na4 Qeh8 Be4 Rg7 Bg6 Q8h6 Qg8 Rf3 Qf7 Rb2 a2 Q6h5 Bc1 Ka5 Bd2+ Nb4 Nab6 Rc2 Na4 Qaf6 a1R Ra2 Rc1 Qa1 Rc3 Nc2 Rc4+ Qc3 Rb4 Qd3 Be4 Qc4 Bg6 Qa6 Rb8+
Q1NQn1k1/4B2b/B3R1r1/PKnP3q/5r2/NpB1rQ1r/Q1N2b2/1R1B1b2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 b5 f4 e5 g4 c5 a4 h5 f6 b4 Kc4 e4 d4 h4 d6 h3 a6 e3 a5 h2 d7 e2 a7 e1R g6+ Ke6 f7 Nf6 f5+ Ke7 g7 Nc6 g8B Qc7 g5 Re3 g6 Rg3 g7 Qd6 Qf3 Qc7 Na3 Qe5 Rb1 Ne8 Bb2 Rhh3 Kb5 Nb8 Bc3 Rg6 Ne2 Na6 f6+ Ke6 d8Q b3 Bh7 Qh5 g8N Be7 f8B Kf7 d5 c4 Qg2 Nc5 Nd4 Bf5 Ndc2 Bd6 Rg1 h1B Ne7 Bg3 Nc8 Bf2 Be7 Bd3 Qh2 Bhe4 Be2 Bg2 Rge1 Bf1 Bd1 Bf5 Re6 Rb8+ Kc6 Rb4 a8Q Ra4 Kb5 Be4 Qg2 Bed3 Qf3 Bf5 Bb2 c3+ Qe2 Rf4 Ba1 Rg5 Bg6+ Kg8 f7+ Kh8 Bb2 Be4 Bf5 Rg6 f8Q+ Kh7 Qf6 Kg8 Ba1 Rg7 Bg4 Bh7 Bf5 Rg6 Bd3 Re4 Qff3 Rf4 Nb4 c2 Bc3 c1R Qa2 Rc2 Bc4 Rd2 Nbc2 Re2 Kb6 Rg2 Ba6 Rg6 Kb5 Re3+
1QBNBN1K/1NQ3r1/B1Qrbbp1/3n3R/2n3RB/n1rP3k/2P1rq2/6Q1 w - - 0 1 illegal: No proof kernel
3b3k/2B1N2r/1K2B1pq/Bb1QNQnB/1RQ5/1P2Pb2/1b2rR1N/r5nQ w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Ke3 f5 d4 Kf7 h4 a5 h6 c4 h7 c3 d6 c2 d5 f4+ Kd4 f3 Kc5 a4 b3 f2 e6+ Kg6 e7 a3 e8B+ Kf6 b6 a2 b7 Nc6 b8B Qe7 h5 Ra7 h6 Bb7 e3 Qd7 Nf3 Ra6 Na3 Qe6 Bh3 f1B Bc7 Be7 Qd3 Bf8 Nc4 Na7 Bh5 g6 Rh2 Qe5 Bd2 c1R Bda5 Ne7 d7 Re1 d8N Nac6 Be6 Nd4 Rf2 Qg5 Nce5 Ng8+ d6 Re2 Nc6 Be7 Qc4 Bd8 Nh2+ Nf3 d7 Ba8 Rc1 a1B Ne7 Bb2 Rd1 Qf4 Rd4 Ng1 Kb5 Ra7 Kb6 Bf3 Re4 Kg5 Rd4 Qf8 Re4 Nf6 Rf4 Ne4 Rh4 Rg8 h8Q Rg7 h7 Kh6 Qg8 Ra8 h8Q+ Rh7 Qf7 Ng5 Qf5 Ra7 Qhf6 Qg7 Qh3 Qf8 Qff5 Kg7 Qg2 Kh8 Qh1 Bc6 Qb5 Bcg2 Rb4 Bf3 Qc4 Qh6 Ng8 Be7 d8Q Ra8 Qdd5 Bd8 Ne7 Ra7 Rb5 Ra8 Bd2 Ra1 Ba5 Rd2 Rb4 B1e2 Qh4 Bb5 Qhc4 Re2
2N2n2/1nN3qQ/BRb1Rp1R/k3n1rN/B4r1n/2r1P1K1/1b2P3/1RB1NQ2 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 h4 e4 hxg5 e3 fxe3 Bf5 Qa4 Bh3 Qd1 Bc8 Kf2 Kd7 d4 c5 b4 Kc7 g4 Kb6 g6 a5 d6 h5 g7 f6 d5 a4 d7 c4 g5 h4 g6 c3 d6 h3 Nf3 h2 Na3 c2 Bh3 Rh7 Kg3 Ba6 Nc4+ Kb7 b6 a3 b5 a2 Qf1 Rh8 Ne1 Be7 Rb1 Nh6 g8B a1N g7 Qc8 d8R Qd7 Re8 Nb3 Bf5 Bf8 Bd3 Nc5 Re6 Ng4 Bf7 Rh4 g8Q Rh5 Be8 Qg7 d7 Rg5 Qh7 Be7 Ne5 Ra7 Ng6 Ra8 d8R Nbd7 Nf4 Nf8 Rdd6 Rd8 Rc6 Rd4 Nh5 Rf4 Bd7 Bd6 Be8 Be5 Rcd6 Kb8 b7 Ka7 b8N Bb2 Nd7 Bb7 Nb6 Bc6 Nc8+ Kb7 Bc4 Kc7 b6+ Kb7 Bd5 Ka6 b7 Ka5 b8N Nb7 Bc4 Nc5 Ba6 Nb7 Rg1 h1N+ Kh4 Bf3 Rb6 Ng3 Ba4 Bc6 Rh1 Nf5+ Kh3 Nh4 Kg3 Rf2 B6b5 Rff5 Na6 Rf4 Nc7 Bc3 Bd2 c1R Ba6 Rc2 Bc1 Bb2 Rh3 Rc3 Rh2 Nf3 Rh1 Rd4 Nf4 Rb4 Rh5 Nh4 Rh6 Rbc4 Nh5 Re4 Ne8 Rf4 Nc7 Ne5+
k1N5/n3R3/nR2QpN1/3Kr1Pb/P1Q1Bbr1/4rrB1/1Q2nB2/2qN1BQ1 w - - 0 1 illegal: No possible last move
RrQ3bk/1B4r1/K3P1rB/b4N2/2NnR1R1/Q1BR2P1/1npBb3/r3q1Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 c5 d4 f5 Kd2 Kf7 Kd3 Kg7 Kc4 h5 e4 a5 g3 h4 d6 h3 e6 a4 g6 f4 d5 f3 e7 f2 e8R h2 e5 a3 b6 a2 Kb5 c4 b7 c3 d7 c2 d6 Ra4 Ne2 Qe7 d8B Rh7 d7 Rh4 Na3 Nh6 Bg2 f1B Nc4 Kh8 g7+ Kg8 Ba5 Qf7 d8Q Be6 Q8d6 Nf5 Bd2 Ne7 Nd4 Bd5 Nf5 Na6 b8Q Rh7 Qc8 Be2 Qg1 Nc5 Bc3 Nd3 Ka6 Qe6 b5 Ra3 b6 Nb2 b7 Nc6 b8B Rb3 Qa3 Nd4+ Bd6 Rb7 Rd1 a1R Rd3 Rh8 Bf3 Kh7 g8R Rg7 Bd2 Be7 Bac3 Bd8 Be4 Bb6 Bf8 Qe7 Bf3 Ba5 Bg2 Be6 Bb7 Rg6 Bfh6 Rg7 Rgf8 Bg8 Rf6 Qb4 Rg6 Qe7 Rg4 Qb4 Qf2 Qe7 Rd1 h1R Qg1 Rh5 Rc1 Rhg5 Re1 R5g6+ e6 Qd6+ Qc6 Qe5 Ra8 Qe3 Qc8 Qf2 Rf1 Qe1 Rff4 Bf7 Qc6 Rb8 Qc8 Bg8 Re4 Kh8
1rq2B1B/1R1r3k/1Krp4/N2R3b/NbRBR3/nBnQ1QPQ/1Pb5/7b w - - 0 1 illegal: No proof kernel
NNRN1nbR/1r4Qn/2PBb3/b5qR/B2K2Q1/3N4/n1P1QRpr/4b2k w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 b4 Ke5 f4+ Kd5 h4 e5 c6 a5 b6 g5 h6 g4 b5 g3 h5 a4 b7 d6 f6 g2 f7 a3 h7 a2 b6 Be6 h6 Qc8 f5 Qd8 f6 Ra7 Nd2 Nd7 b8N Qe7 Ne2 Rb7 Nc4 e4+ Kc3+ Kc5 Bf4 e3 Nc1 e2 Rh5+ d5 Bc7 Bg7 f8R e1B+ Qd2 Bf7 Rc8 Nf8 Kd3 Qe5 Qe2 d4 Bd6+ Kd5 Rb1 a1N Rb4 Be6 f7 Nb3 Ra4 Nf6 Qg4 Ng6 f8N Bg8 Ne6 Qg5 Nd8 Nf8 Rb4 Nd2 Ra4 Nde4 Qe2 Nc3 Ra7 Rf7 Rac7 Na2 b7 Ba5 Re7 Be1 Qg4 Ba5 Re2 Re7 Rf2 Rd7 Ke2 d3+ Kf3 d2 Nd3 d1B+ Be2 Ne4 Nb6+ Kd4 Na8 Rc7 Na6 Be5 b8Q Bg3 Qb5 Rb7 Nb8 Bh4 Rf1 Bhe1 Rf2 Qg6 Kf4 Nf6 Qa6 Qg7 Kf5+ Ke3 Ke5 Be6 Bf1 Bf3 Qb5 Bfd5 Be2 Rg8 h8Q Bc4 h7 Qg5+ Rf5 Rg6 Qg7 Rh6 h8R Bg8 Bf1 Bce6 Qbc4 N6h7 Qa6 Qe7 Rf2 Qh4 Nc5 Qe7 Bb5 Qh4 Nd3 Qe7 Rg5 Rh2 Rh5 Qh4 Ba4 Qe7 Rf3+ Ke2 Kd4 Qg5 Re3+ Kf1 Rf3+ Kg1 Rf2 Kh1 Qb5 Ra7 Qbe5 Rf7 Qee2 Rb7
1nBN3R/2b1rR2/Qnp1KBk1/3N4/1rQRP3/nP1RB1qr/1r2Q1B1/5b2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 a5 Kf3 f5 Kf4 Kf7 d4 c6 h4 g6 e4 a4 e6+ Kf6 d6 a3 d7 a2 d5 Ra7 b3 Qc7+ d6 Bg7 d8Q+ Qe7 d7 Ra8 h6 Ba6 h7 Bc8 b6 Ra3 b7 Na6 b8Q Ra4 h5 Rd4 h6 Rb4 Qa7 Nb8 Qe2 Ba6 Bg2 Bb5 Rh3 g5+ Kf3 g4+ Kf4 g3 Nc3 Kg6 Be3 Bd4 Nd5 Nf6 Qa6 Bb6 Ke5 f4 Rf1 a1N Qg8+ Qg7 d8R f3 e7 f2 Nf3 Nc2 Ng5 Bc7+ Ke6 Na3 Nf7 Nfd7 e8B Nb6 Bd7 Bc4 Bc8 Bd3 Rd1 f1R Rd7 Rf2 Nd8 Bb5 Rf7 Bc4 Qb2 Bf1 Rd4 Re2 Qc2 Rd2 Qcc4 Rb2 Qf8 Qg8 Qfc5 Qg7 Qe2 Qg8 Qcc4 Qg7 Bh1 g2 Rhf3 g1R Bg2 Rh1 Rh3 Rf8 h8B Qg8 Rf3 Rh3 Bf6 Qg7 h7 Rg8 Nb7 Rd8 h8R Rd7 Nd8 Qh7 Bf2 Qh4 Rfd3 Qg3 Be3 Re7+
2BB1Rn1/5b1B/K1pr2r1/PN1N3Q/k1bPnrRb/4N1q1/4r1N1/2B1Q1R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 b5 f4 g5 a4 e5 h4 b4 Kc4 g4 Kb5 b3 d4 b2 a6 g3 a7 g2 h6 e4 a5 e3 h5 e2 h7 e1R h6 Nc6 f6 Bd6 f7 Nb4 f8R Be5 f5 Nc2 d6 Bg7 f6 Nb4 f7 Qh4 Ne2 g1R Nd2 b1B Bh3+ Qg4 Nf1 Bb7 Ne3 Be5 Nc3 Na2 Ncd5 Rb8 a8B Bc6+ Ka6 Rg3 Rg1 Rf1 Qe1 Rd8 Bb7 Ba4 Bc8+ Kc6 d7 Bf6 Bg2 Bf5 Be4 Bg6 Bb1 Re8 d8B Nc3 Ra2 Bh4 Rag2 Qf4 Bbf5 Rg5 Rg4 Qg3 Bc2 Rf4 Bb1 Nf6 Bbf5 Rg8 h8N Bb3 h7 Rg7 Bb1 Ng8 Bc2 Bh5 Ng6 Ne4 h8Q Rgf5 Qh7 Rf6 Qh6 Rd6 Qg5 Rf3 Ngf4 Rgg6 Nfg2 Rf4 Bd3 Rge6 Qe5 Bg6 Qh5 Ba2 Nc3 Bc4+ Nb5 R8e7 Re8 Ref6 f8N Bgf7 Ne6 Rg6 Rf8 Ng5 Nc2 Rh6 Bh7 Rg6 Qe4+ Bd5 Qe1 Ba2 Nc3 Bc4+ Ka7 Re8 Nd5 Kb5 Kb7 c6 Nec7+ Ka4 Nb5 Re3 Ka6 Re2 Nce3 Ne4
NN2rBRQ/1n2N3/1Prp2B1/bK3b2/P1N1nnr1/1Q1R1q1B/4Bk2/1r4R1 w - - 0 1 illegal: No proof kernel
1n4b1/q1B1bk1r/P3r3/rRNR1b2/2rP2Np/1Q2RB1R/1Q1K1B1B/1Q1n4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 e5 a4 b5 f4 c5 g4 h5 d6 e4 f6 h4 a6 e3 g6 b4 f5 c4 g7 c3 a5 e2 f7+ Kd7 f6 Ke6 d7 b3 g5 c2 g6 b2 a7 Qb6 d8R Rh6 a6 Be7 f8B Bb7 f7 Bg5 Be3 c1R Nc3 b1B Bd6 Bc2 f8B Bc8 Bc7 Bf4 Nh3 Bg3+ Nf2 Ne7 g8Q+ Kf6 g7 Qb3 Rh3 Qa3 Ne4+ Kg6 Rd5 Qd3 Rb1 Bf5 Nc5 Rh5 Rb5 Bd6 Bg2 Bb3 Bf3 Rc4 Qb1 Qc2 Qh7+ Kf7 Ng4 Qe4 Kd2 e1R Bf2 Rg5 Re5 Qb7 Re3 Nd5 Qb2 Be7 Bh2 Nc3 g8Q+ Ke8 Qd5 Nd1 Bg7 Qb6 Bge5 Ba2 Bc7 Qb7 Rc3 Re6 Re3 Rh5 Qe4 Bb3 Qeb1 Kf8 Qh8+ Kf7 Qe5 Rh7 Qd5 Ra4 Qc4 Ra5 Qa4 Nc6 Qc4 Rc8 a8R Qa7 Rab8 Ba2 R8b6 Nb8 Rd6 Bb3 Rd5 Ba2 Bce5 Rc7 Qcb3 Rc8 Nb7 Rc5 Bc7 Rc4 Nc5 Rca4 Be2 Kg6 Rde5 Rb6 Qb4 Bg8 Rd5 Re6 Q4b3 Rc4 Bf3 Kf7
1n1B2B1/3Qq1kP/1r4b1/b2R1Q2/Q2NKbpN/QRR1Rn2/P2N3n/6rb w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 e5 h4 g5 d4 b5 d6 c5 f6 g4+ Ke4 c4 f4 c3 f5 c2 h6 b4 d7 b3 h5 b2 d5 Rh7 a6 Qb6 d8N+ Ke8 f7+ Ke7 a7 Kf6 d6 Na6 d7 Qa5 Nc6 Bc5 d8R Ne7 f8Q+ Rf7 h7 Bb7 h8R Qc7 h6 Nb8 h7 Nd7 Rh3 Bb4 Nf3 Rb8 a8Q Ng6 Nbd2 b1B Bc4 Nh4 Qa4 Ba5 Qfa3 Kg7 Rhe8 Ba8 Bd5 Rb6 Ncd4 Nb8 Rg3 Qe7 f6+ Kh6 Qd7 Bc6 Bb2 c1B+ Qc2 Rf8 f7 Kg7 Rc8 Bb7 Rc3 Bc6 Rb3 Bb7 Rc8 Re8 Rcc3 Rf8 Ne1 Nf3 Ng2 Nh2 Rge3 Rc8 Nh4 Rcc6 Kf5 e4 Qa4 Rc5 Ba3 Rcb5 Bd6 Rc5 Bc7 Ba8 Bd8 Rcb5 Re2 e3 Kf4 Rb4 Qcf5 Bd3 Re1 e2 Rab1 Rc4 Rb5 Bc2 R1b3 Rc7 Be6 Bh1 Rd5 Rc5 Qg5+ Bg6 Qf5 Nf3 Ke4 Rcc6 Rg1 e1N Rg3 Nh2+ Rgf3 Ba3 Re3 Bd6 Rec3 Bf4 Re3 Rc1 Rbc3 Kh6 f8Q+ Qg7 Qfa3 Qe7 Rb3 Kg7 Rec3 Ng2 Rfe3 Ne1+ Ng2 Nef3 Nh4 Be5 Bf7 Rg1 Bg8 Bf4+
1R4BN/5nnp/1bq1b3/bQ2QN1k/BP4N1/B2n1Pr1/1NKnr3/RQ4B1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 d4 e5 Kd2 c5 b6 a5 f3 a4 f6 Kg6 d6 e4 f7 a3 d5 c4 b7 c3+ Kc2 e3 d7 e2 d6 e1B Be3 a2 Nd2 Na6 b8Q Bg7 f8B Qe8 d8Q Bf2 d7 Bh6 Qb1 Bg7 Qdc7 Be1 d8N Bh6 Ne2 Qe6 Bg1 Ra7 Nc4 Qe5 Nf7 Qc5 Qe5 Nc7 Ng3 Be6 Nf5 Ne8 Qb5 Qc6 Ba3 Re7 b3 Bf2 Nb2 Bb6 b4 Ng7 Rh5 Ba5 Bc4 Re8 Bb3 Re7 Ba4 Re8 Kc1 c2 Kd2 c1N Kd1 Qd6+ Kc2 Qd5 Rh3 Nd3 Rg3 Nc5 Rg2 Qc6 Rd2 Re7 Rd8 Re8 Rb8 Nd3+ Qbc5 Ne7 Qc4 Rhg8 Qcc5 Nc8 Qc4 Qb7 Qcb5 Qc6+ Qc3 Nh5 Nd4 Bd7 Nh8+ Kg7 g6 Be3 g5 Nd6 Qcc5 Re5 Qc3 Nf7 Qcc5 Be6 Qc3 Nd8 Nf5+ Kf8 g7+ Ke8 g6 Beb6 Qd1 Re4 Rc1 a1N+ Kd2 Nb3+ Kc2 Nd2 Ra1 Re2 Qb1 Rf8 g8N Rf7 Nfe7 Rg7 Nf5 Kf8 Nf6 Rg8 Ng3 Kg7 Qcc5 Kh6 g7 Nf7 Nf5+ Kg5 Qc3 Rd8 Qcc5 Rd4 g8B Rg4 Qc3 Rg3 Ng4 Ng7 Qcc5 Kh5 Qc3 Bc5 Qe5 Bcb6+
2N1R3/Bkb1NrP1/1pn2b1R/3b4/1N1Qq1Q1/K4Pr1/Br1NQ1rR/4n1R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 e5 Kc3 h5 Kb3 c5 a4 Kc7 g4 e4 d6+ Kc6 f6 h4 g6 c4+ Ka3 e3 d5+ Kd7 a6 c3 g5 e2 f3 e1R g7 h3 g6 h2 f7 c2 a5 Re8 a7 Re1 a6 Rh4 Nh3 Rg4 Nd2 Qb6 Nf4 Qe3+ Nd3 Qg1 Qe2 Qf2 Nb4 Kd8 d7 Kc7 d8N Nh6 g8Q Nf5 Nc6 Nd4 Ne7 Bg7 f8R Nbc6 Rf6 Rb8 a8R Rg3 a7 Be6 d6+ Kb6 d7 Bd5 Bh3 Reg1 Be6 R1g2 Bf7 Rf8 Re8 Qe1 a8N+ Ka7 Bb2 c1B d8Q Bh8 Be6 Rf7 Nb6 Bg7 Rg1 h1R Ra2 Rhh2 Nbc8+ Kb8 Qd7 Ka8 Qh8 Kb8 Qh5 b6 Qg4 Ka8 Qd8 Kb7 Qd6 Bh6 g7 Bg5 Rh6 Bf6 Qdf4 Ne5 Qfe4 Ndc6 Qd4 Nd3 Nc4 Bf4 Nd2 Bc7 Ba1 Bd8 Rc2 Be4 Ba2 Bc7 Qd1 Nf4 Nf1 Rf2 Qd6 Bb8 Be5 Nd3 Qd4 Bd5 Bd6 Qe4 Bf4 Ba7 Bb8 Ne1 Q1d3 Rd2 Q3c4 Rd1 Rf2 Rd2 Qe2 Rb2 Nd2 Be6 Rh1 Bd5 Rff1 Rhg2 Rfg1 Rf2 R1h2 Rfg2 Bc7 Bb8 Bf4 Bc7 Be5 Bd8 Bb8 Bc7 Ba7 Be6 Qd1 Bb3 Qe2 Bd5
1n1B1qR1/rQ3P2/2B1pb2/3rQ1PQ/3N2b1/2R1QR2/Rb3nNn/1kB2b1K w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 b4 h5 g4 a5 Kg2 c5 d4 c4 g6 e6 g5 a4 b6 a3 b7 h4 f6 c3 b5 c2 f5 a2 g7 Rh7 f7 Qf6 b6 Ra4 Nc3 Ne7 g8R Qh6 f6 Rh8 Nce2 Rc4 Nh3 Ng6 Nhf4 Ra4 Rh3 Bg7 f8R Ne5 Kh1 Ng4 Bg2 Nh2 Rc3 h3 Bf3 Ra7 Ng2 Rh7 Qd3 Bd7 Qe3 Be8 Be4 Bh5 Rf7 Bg4 Rff8 Kd7 d6 Bh8 d5 Rf7 Bb2 c1N Nd4 Nd3 Bc1 Re7 Rf7 Qf8 Bf3 Nc6 b8Q Nf2+ Kg1 Ra5 b7 Rc5 Qa8 Rb5 b8Q Ra5 Rb1 a1B Rb2 Ra7 Ra2 Bb2 Qb5 Ra5 Qbe2 Nb8 Qe5 Rb5 Q2e3 Rc5 Rh7 Ra5 f7 Bf6 Be4 Ra7 Rhh8 Re8 Rh6 Rc8 Rh7 Rc5 Qb7+ Kd8 d7 Ke7 Bc2 Rb5 Ba4 Rba5 Bc6 Rc5 Q5e4 Kd6 d8B Rca5 Qg6 Rb5 Qh5 Rba5 Qd3 Ke5 d6 Rd5 Qg3+ Ke4 Rh6 Bh8 Rf6 Bg7 Rf5 Bf6 d7 Qe8 Rc5 Qf8 Qe5+ Kd3 Be7 Bd1 d8Q Be2 Qdb6 Bf1 Rb5 Kc3 Bd8 Kd3 Nf3 Kc2 Rb3 Kb1 Nd4 Qe7 Rba3 Qf8 Rff3 Nhg4 Qb4 Ba6 Nf4 h2+ Kg2 Bd3 Qbe1 Bf5 Rac3 h1B+ Kg1 Bg2 Q1e3 Bf1 Ng2 Nh2 Qh7 Nd3 Qh5 Bg4 Kh1 Nf2+
bNBQR2Q/Q4PNK/q2P3r/bRbnB3/5r2/p1Bn1k2/b3R2r/2Q4R w - - 0 1 illegal: No possible last move
3B1N1k/3rPK1r/1N4Q1/Qb2r3/1n4p1/3rRQ1q/1P1NB1N1/bnRQ1bB1 w - - 0 1 illegal: No proof kernel
rN2bBn1/1K1P3B/2Bn1b1N/Q1b5/BQ2Q1pk/Rb2nrq1/1R4P1/4QR2 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 fxe5 d5 axb5 g4 c4 Bg7 cxd5 Qg5 hxg5 Bf8 Kf2 Ke7 Ke3 h5 Kd4 a5 Kc5 f5 d4 f4 b4 a4 e4 a3 g6 a2 g7 c6 Kb6 c5 e6 Kf6 d6 Kg5 e7 c4 e8B c3 d7 h4 d8Q+ Be7 e5 h3 e6 c2 d5 h2 d6 Rh5 Na3 Nc6 Nf3+ Kf5 Qe1 Nh6 g8B Nf7 Ng5 f3 Bh7+ Kf6 Nc4 f2 Ba3 c1N Ne5 Bb7 Nd7+ Kg7 Nb8 Bf8 e7 Kh6 Be2 f1B Bd1 Rh3 Ba4 Be2 Rf1 Kh5 Kc7 h1Q b6 Qg1 b5 Qe3 Bc5 Ba6 b7 Qg3 b6 Nb3 Bd7 Bad3 e8Q Kh4 Qe4 Ne7 Bdc6 Ng8 Kc8 Nd4 d7 Be7 Bd6 Bf6 Bf8 Nd6+ Kc7 Nc2 Nf7 Bd1 Nh6 Nb5+ Kc8 Ne3 Qc7 Bb3 Qce5 Na3 Q5a5 Nb5 Qf3 Bf7 Qe4 Nd6+ Kc7 Bd4 Na6 Be8 b8Q Bc2 b7 Bf6 Kb6 Qf2 Kc7 Rf3 Kb6 Nb5 Qd6 Qg3 b8R Bd1 Rb7 Be7 Nb8 Bf6 Qa3 Nd6 Kc7 Bd4 Rb2 Bc5 Q3b4 Bb3 Rd1 Bc2 Rd3 Bd1 Ra3 Bb3 Re2 a1B Rc2 Nb5+ Kb7 Bf6 Rb2 Nd6+
1Q1Q1Q1b/1PB3R1/1N2K1q1/nP4bk/6br/bnrN1QR1/p1BR4/nN5R w - - 0 1 illegal: No possible last move
3Nb1r1/1p3RbB/b2nPq2/P1kb2N1/1r2Q1B1/r1B1K3/QR1Q2Q1/nR1R4 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 a4 h5 d4 f5 e4 c5 g4 h4 d6+ Ke6 d5+ Kd7 a6 h3 a7 f4 g6 c4 e6+ Ke8 g5 h2 e7 Kd7 g7 c3 g6 f3 e5 c2 Bd2 c1R Ra2 Nf6 g8B Qa5 g7 Rc4 Na3 Rh6 Rb2 Rc3 Bh7 Nh5 g8Q Qb5 Bh3+ Re6 Nc4 Ra3 Na5 Rb3 Nc6 Ng3 Bc3 Qf1+ Ke3 f2 Qd2 Qa6 Bg4 f1B Nf3 Ne4 Ng5 Bg7 Nd8 Nc6 e8R Rb4 Rf8 Bd3 Rhb1 h1B a5 Rb8 a8Q Nd4 Qg2 Nb3 Qa7 Qc6 Qd4 Ba6 Qc4 Na1 Qa2 Bf6 Qg6 Bg7 Rff1 Qb5 Rf3 Qf1 Rf8 Qf6 Rf7+ Ke8 Qf5 Bd7 Qf4 Bdb5 Qff3 Re7 e6 Rc7 Re7+ Kf8 d7 Nd6 Qe4 Rcc8 Ndf7 Rcc4 d8Q+ Be8 Rc7 Ra4 Qd7 Rcb4 Nd8 Nf7 d6 Ra3 Qd2 Rc8 Qdc6 Ra8 d7 Ke7 Qcd5 Bf3 Qg2 Nd6 Qdd2 Rc8 Rc5 Rb8 Rf5 Rc8 Qed4 Bd5 Qde4 Nb5 Rf4 Kd6 Rf3 Kc5 Rf4 Qh6 Rf7 Nd6 Nc6 Bb3 d8R Nf5+ Kf2 Qf6 Qdc2 Rb8 Rd2 Bd5 Rdd1 Nd6+ Ke3 Bd7 Qcd2 Rg8 Nd8 Be8
2q2BBk/PR1Q4/3RNn2/1RrQ1bnP/7b/NbQ4n/r3KQpn/4B1R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kf7 a4 e5 f4 b5 h4 g5 f6 c5 d6 e4 d5 g4 h6 c4 f5 e3 a6 c3 h5 b4 h7 e2 a5 c2 d7 b3 a7 b2 d6 g3 a6 g2 Bd2 c1N Nh3 Qc7 d8Q Be7 d7 Nc6 Rg1 Qa5 Na3 b1B Nf4 Na2 Ne6 Bd3 Rb1 Qc7 Rb5 Nab4 Qb3 Nd4 Qc3 Qc6 Qc7 Bc2 d8R Bd1 Rd6 Bb3 Qd7 Nf3+ Kf2 e1N Bc4 Nh2 Ke2 Nef3 Be1 Ng5 Bd5 Rb8 a8Q Nd3 a7 Nf2 Bc4 Qa6 Qd5 Nfh3 Rb7 Nh6 Rb5 N6g4 Rb7 Rg8 h8R Rg6 Rh7+ Kg8 Rb5 Bd8 Re7 Kh8 f7+ Nf6 f8B Rb6 Rg7 Rc6 Rf7 Rc5 Rg7 Nfh7 f6 Be7 f7 Nf6 Bd3 Rh6 Bh7 Bd8 Bg8 Qb7 Be7 Qb8 f8Q Qc7 Qde8 Bd7 Qff7 Qc8 Bf8 Rg6 Nf4 Bf5 Ne6 Ngf3 Qee7 Rg4 Qd7 Ra4 Qg6 Ra5 Qg3 Nfg5 Qf2 Bc7 Rdb6 Bg3 Rd6 Ra6 Q7c6 Ra5 Rgb7 Bh4 Qd7 Ra4 Nc4 Ra1 Na3 Ra2+
b2n1bB1/P2Q1r1R/1k1p1r1b/1N1Q1r2/3P1rK1/1R5B/1q2RR2/QBNn2B1 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 b3 cxb3 Nc6 b4 Nb8 b5 Ra6 Qa4 Ra7 Qd1 Ra8 Ke2 c5 Kf3 e5 d4 h5 a4 c4 g4 d6 f6 Kd7 g6 Kc7 g7 c3 f7 c2 b6+ Kc6 a6 h4 b7 h3 a5 h2 g5 Qe7 g6 Qc7 a7 Rh4 a6 Qd8 Bh3 Ne7 g8B Kc7 g7 Nd5 Nc3 Nc6 b8R Nb6 Be3 c1R Nge2 Rh7 Ra2 Nd5 Rb3 Bb7 Nb5+ Kb6 Kg4 e4 f4 Rc3 f5 Qb8 f6 Nd8 Bg1 e3 Nc1 e2 Qe1 Rh6 Bh7 Rf3 g8B Nc3 Bb1 Nd1 Qc3 e1B Re2 Bd2 Qa1 Be7 f8R Rg6+ Kh5 Bh6 f7 Rgf6 Kg4 Bc6 Rf2 R3f5 Re8 Bef8 Ree3 Qb7 Ree2 Rc8 a8Q Rc7 Qc8 Qb8 a7 Ba8 Qd7 Rc3 Qa4 Rcf3 Qa3 Qc8 Qa1 Qc2 Qe6 Qb2 Qd5 Bfg7 f8Q Rf7 Qe7 Bf8 Rg2 R5f6 Qd7 R3f5 Be3 Rf3 Rgf2 R6f5 Rhf1 h1R Rh2 R5f6 Bg1 R6f5 Rff2 R5f6 Bf1 R3f5 Rh5 Rh3 Rh4 Rhf3 Bh3 Bg5 Rh8 Bgh6 Rh7 R3f4+
2r3n1/p2Qb2N/1Q3R1N/1b2n3/1kBQNr1B/R3NrbQ/r3PRP1/6Kq w - - 0 1 illegal: Other
Bq2NbbB/1R2RB1N/n1N3q1/rp2R1Q1/1nP5/2Pbr3/7B/2kbQ1KN w - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 f5 exf5 a5 b4 c4 bxa5 c3 dxc3 Bg7 c4 Bf8 f4 Kf7 Kf2 d5 g4 e5 a6 b5 a7 h5 f6 Ke6 f5+ Kd6 g6 Kc5 f7 Kb4 g7 d4 g5 h4 f6 d3 g6 d2 Bb2 h3 Nc3 h2 Nh3 e4 Ne2 Qd5 Nd4 Nh6 g8R Rh7 g7 Ka4 Nc6 Qh5 Qe1 Ba3 f8B d1B f7 Na6 Bd6 Bb4 f8N Rb8 a8N Bd2 Nc7 Be6 Ne8 e3+ Kg2 e2 Nf2 Rh8 Nh7 Ng4 Rf8 Qf5 g8Q Ra8 Rf7 Qg6 Re7 Bh6 Rg1 Bf7 Nh1 Nf6+ Kf2 Ra7 Rg5 Bf8 Rge5 Nd5 Bh3 Ndb4 Be6 Ra8 Bd4 Ka3 c3 Kb2 a4 Ra7 a5 Ra8 Qg7 Bg8 Bf7 Ra7 Ra2+ Kc1 Rd2 Ra8 Rd3 Ra7 Rb7 Ra8 Rde3 Ra7 Ree7 Ra8 R3e5 Ra7 Nhf6 Rh3 Nh7 Re3 Qf6 Ra8 Qg5 Ra7 Rd5 Ra8 Bh8 Ra7 Rde5 Ra8 Ng3 h1B Kg1 Be4 Nh1 Bd3 Bc7 Nb8 a6 Ra7 Qf2 e1Q+ Qf1 Ra8 a7 N8a6 Bb8 Qh4 Qe1 Qd4 Bd6 Qb6 Bc7 Rd8 a8B Rd6 Ra7 Qb8 Rb7 Rf6 Re4 Rf2 Bh2 Ra2 R4e5 Ra5
1n1B2qr/1N2QQ1R/1R6/P1B1Rb1K/1N2B3/1r2R1P1/1Q1q1b1p/1nQn2kn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 a4 Ke4 d4 e5 f4 c5 g3 b5 a6 b4 d6 b3 d5 c4 d7 c3 d6 h6 a7 c2 a5 b2 f6 Qe7 f5 Qd8 f7 Qc7 d8Q Ne7 g6 Bg7 f8R Nd7 f6 Nb8+ d7 Qc6 f7 Ba6 Be3 c1Q Bc5 Qc4 Qc1 Bc8 Na3 b1N Nh3 Qc2 Nb5 Qd2 Ra3 Nf5 Qf6 Ne3+ Kh5 Qcd5 d8B Nd1 Nf4 Bf5 Nd3 Kf3 Nd6 e4 Re8 e3 f8Q e2 Re5 e1N Nb4+ Nd3 Q8e7 Qg8 Nb7 Bf8 Be2+ Kg2 g7 N3f2 Rh3 Nh1 Bf3+ Kf1 Rae3 Kf2 Be4 Kg1 Qef7 Bd6 Q6e7 Bc7 Qb3 Bb6 Qbc3 Kf2 Q3b2 Kg1 Kh4 h5 Kg5 Qgd5 g8Q h4 Qgh7 Qc4 Kh5 Qg8 Rh2 h3 Qf7 Nd7 Qe7 Rc8 a8R Nb8 Ra6 Ba7 Rh6 Rc6 Qhf7 Rb6 Nd3 Rb3 Nb4 Bb6 Rh7 Be6 Rf2 h2 Rf6 Bf5 Rd5 Bc7 Rb6 Bf4 Re5 Bh6 Rd3+ Be3 Rc3 Bf2 Rd3 Nc6 Re3 Nb8
k3qN1Q/b1B2N2/Q2bn1b1/pK1NR1nB/2B2PPb/3rN1B1/8/2qr1RQ1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 c5 Kc4 Kc7 b4 Kb7 g4 a5 d4 e5 b6 h5 b5 e4 g6 h4 g7 e3 f6 h3 d6 h2 d5 e2 d7 e1B f7 Be7 f8N Qc7 d8B Rh3 d6 Bf5 d7 Bd6 Bf4 Rh7 Ne2 Na6 Ng3 Be5 Nc3 Ra7 Nd5 Bc2 Nf5 Qc8 Bg3 Rh5 f4 Nc7 Nfe3 Ne6 Bc7 Qe8 d8N+ Ka8 Nf7 Nh6 g8B Bd6 Bd3 Rg5 Rf1 h1Q Bg6 Bf5 Bh5 Bg6 Qe2 Rb7 Qf2 Rb8 Rc1 Rd8 Qg1 Bf2 Rce1 Re5 Kb3 c4+ Ka4 c3 Re2 c2 b7+ Ka7 Ree1 c1B Re2 Bb2 Ree1 Bd4 Re2 Rd7 b6+ Ka6 b8Q Re4 b7 Ba7+ Nc4 Re3 Qa8 Rd3 b8Q Be1 Nce3 Rd1 Bh2 Bh4 Bg3 Rd3 Qb2 Rd1 Qh8 Rd3 Qd8 Kb7 Qdf6 Ka8 Kb5 Rd1 Qd4 Rd3 Qb6 Rd1 Qa6 Rd3 Nd8 Nf7 Ree1 Nfg5 Nf7 Be4 Nc2 Bg6 Re5 Qg2 Nce3 Qd2 Re4 Qc1 Re5 Rd1 Bh7 Bb1 Bd3 Bc2 Be2 Bg6 Bc4 Ba3 Nb4 R7d6+ Nd7 R6d3 Nbd5 Qd8 Nf8 Bd6 Nc2 Qc8 Nce3 Qe8+
r1NQ1N1N/1Qn1nB1b/1b3RPP/1n2KBNp/2qBQ3/1q6/1R1nr2k/4B3 w - - 0 1 illegal: No proof kernel
kB1Bn3/2bq2qN/qr1R1NPP/1R1np1K1/2Q1BR2/5N2/r1Nq4/4QB1b w - - 0 1 illegal: No proof kernel
B2NQ2Q/1R1Q4/2P1b2K/Rp1rBqb1/2NN1r2/2kn1B2/5NPn/q4qBq w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 Kf7 Kf3 d5 Kf4 h5 c4 b5 a4 h4 c6 e6 a6 d4 g6+ Kf6 a5 d3 c7 h3 g7 d2 a7 h2 c5 Rh6 a6 Rh5 c6 Nd7 Nc3 Ba3 Bb2 Nh6 g8Q Rh3 Nf3 Bb4 Ra5 Qf8 Ne4+ Ke7 Kg5 e5 f6+ Ke8 f7+ Ke7 Nd4 Rc3 f4 Rb8 a8Q Bc5 f5 Ng4 a7 Rd3 Nf2 Kd6 f6 Kd5 Qh8 Kc4 Be2 e4 Bf3 Nde5 Re1 Be6 c8N h1Q Nd6+ Kb4 Nc4 e3 Ba1 Rb7 Qe8 e2 a8B Nh2 Rf1 e1Q Kh5 Qe7 f8B Qd7 f7 Be7 Kh6 Qe2 Re1 Qef1 Bg7 Bd8 f8N Qf7 Bb2 Qf5 Ba3+ Kc3 Bc5 Rf7 Bf6 Bd5 Nfe6 Be7 Nd8 Be6 Re4 Rf8 Rg4 Rf7 Rg7 Rf8 Nb3 Rd5 Nd4 Nd3 Be5 Bh4 Rb7 Bf6 Qe2 d1Q Qd7 Qa1 Qe4 Qg4 Qg6 Qf5 Qge8 Bg5+ Kg7 Qe2 Ng4 Bf6+ Kh6 Qef1 Ba7 Qe4 Nf5+ Kc2 Bg1 Bg5+ Kh5 Qf4 Nd4+ Kc3 Nf2 Qg4+ Kg6 Rf4 Kh7 Qf5+ Kg7 Bh4 Kh6 Bg5+
Qq1RK2r/n1R5/1PQB2B1/1N3pQ1/BQnNRb2/2P1n1n1/2q2r2/1b2Bk2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 e4+ Kh4 b4 g5 b6 f5 c3 a5 e6 d6 h6 g4 b7 g3 c6 a4 c7 a3 e7 a2 e8R g2 b5 Qf6 e5 Qf7+ e6 Qd7 b6 Ra6 h7 Qd8 e7 Ra5+ Bb5 Qd7 Na3 Ra7 Bd2 Qd8 Nf3+ Kh3 Nd4 g1N Qc1 Kg2 h4 Nh6 h5 Ne2 Rd1 Ra6 Ba4 Ng3 Nab5 Ng4 h6 Ne5 Be1 Kf1 Qg5 Nbc6 b8B Bb7 Ke6 d5 c8Q Nc4 Kf7 Na7 Qc6 Ra5 Bd6 Qb8 Rd3 Bg7 Rd8 Be5 e8B Bf4 Re3 Ba8 Rd1 a1N Re4 Nc2 Rd7 N2e3 Rc7 Ra6 Ke7 Ra5 Bg6 Ra6 Bc2 Ra2 Ba4 Rf2 Rd2 Rf8 h8Q Bb7 Qg7 Rh8 h7 Ba6 Qf8 Bb7 Ne6 d4 Kd7 d3 Ned4 Ba8 Rd1 d2 Qfe7 Rc8 h8Q Bb7 Qg8 Ba6 Qgd5 Rh8 Qa8 Bb7 Qc6 Ba6 Qe5 Bb7 Qec5 Ba6 Qb4 Bb7 Rb1 d1Q Rb2 Qd3 Rd2 Qc2 Nf3 Ba6 Be7 Qa2 Nd6 Na5 Rd1 Bd3 Nb5 Qb3 Bf8 Qb7 Ke8 Bb1 Rd8 Nac4 Nfd4 Qb8 Qd5 Rh5 Bd6 Qc2 Qdc6 Rh8+
2rqNN2/7B/1PkbR3/B1Pqn2b/5pN1/1Rn1BR2/nKr1nQB1/4RQ2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Kc3 d5 h4 Kd7 b4 a5 e4 f5 b6 f4 b7 a4 h6 a3 h5 a2 b5 g4 e6+ Kc7 c6 g3 h7 g2 e7 d4+ Kb2 d3 e8R d2 c4 Ra4 c5 Bd7 e5 Qg5 h6 Bf5 e6 Bd3 e7 Ra7 Ne2 g1Q Na3 Q1g3 Bg2 Q5h4 Rh3 Bc4 Nd4 Nd7 b8R Qe1 Nac2 Qe5 Rf3 Ra8 Ne3 Ra5 Ng4 Ngf6 Qf1 Bf7 Rb1 Rg8 h8B a1N h7 Nd5 Bg7 Qe6 h8Q Bh5 Qh7 Qd6 Qc2 Ne5 Rb6 Qh1 Ra6 Qd8 Ne6+ Kb8 b6 Nb3 c7+ Kb7 c8B+ Kc6 Ra8 Rb5 Ra3 Nd4+ Rab3 Ne2 Ba6 Rb4 Bd3 Rc4 Bh7 Nb4 Bf6 Na2 Bh4 Bg7 Nf8 Rh8 Be1 d1N+ Ka1 Rg8 Ba5 Ndc3 Kb2 Bf6 Be3 Bh4 Qf2 Qhd1 Qc1 Q1d5 Qcf1 Bg5 Ne6 Rh8 Re1 Bh6 Rg8 Bf8 e8N Bd6 Rg7 Rd4 Rg6 Rd1 Nf8 Rc1 Bg8 Rh7 Rh6 Rc7 Re6 Rc8 Bh7 Rc2+
Br4NR/1BP3Kb/3B1P2/2Rn2Qp/n1rqqB2/1r2b3/2k1rN2/3NQRR1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 b4 d4 c4 d3 f4 e6 g4 a4 g6+ Ke7 c6 d2 f6+ Ke8 g5 a3 c7 Kd7 f5 a2 b6 Kc6 c5 Qd3 b5+ Kb7 g7 Qc2 g6 Bd7 f7 Qa4 Nh3 Be7 f8R Bc6 Qe1 d1R Nc3 Na6 Bf4 Rd4 Rg1 Be4 Bg2 Bg5 Nd1 Ne7 g8Q Rb8 g7 Nd5 Rc1 a1Q Nhf2 Rc4+ Rc3 Bb1 Rf7 Bd3 Qd8 Bh6 g8N Qb2 Qg5 Qb1 Kd6 e5 Ke6 e4 Bd6 e3 c8B+ Ka8 b7+ Ka7 c6 Kb6 Bf3 Ka5 b6 e2 Rf6 Qaa1 Kf7 Ka4 Rc1 Kb3 Rc2 Rf4 Rc5 Rc4 Bh1 Kc2 Be4 Ra8 b8R Qd4 Bb7 Qb4 Rf8 Rb8 Ba8 Qb1 b7 Rh7+ Kg6 Re7 Bf3 Re3 R6f7 Be4 Rh7 Rb3 Rh8 Nab4 Bf4 Nc3 Bh1 Nbd5 Rf7 Rf8 b8B Na4 Bbd6 Rfb8 c7 Bd3 Rf1 Be4 Rg7 Bd3 Kf7 Be4 f6 Bh7 Qb4 e1R Rg6 Ne7 Bhb7 Re2 Qe1 Nd5 Qe5 Qe4 Rgg1 Qb2 Qf5 Bg5 Kg7 Qa1 Bh2 Bc1 Qg5 Be3 Bhf4 Qad4
2Q2RrQ/P3Bq1n/br4qB/2R2pq1/5K1b/Q2B1B2/3rbPNk/N1NN4 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 Kd7 e4 Ra6 d6 Kc6 d7 Ra8 d5+ Kd6 Bg5 Ke5 Bc1 Na6 d6 Kf6 Nh3 Nb4 Ng1 Nd5 exd5 Ra7 Qd2 Ra6 Qd1 Ra8 Ke2 Kf5 Ke3 c5 a4 g5 h4 b5 h6 e5 h5 e4 h7 c4 a6 f6 a5 c3 h6 b4 a7 g4 a6 b3 Ne2 b2 Ra5 g3 Qd3 Kg4 Rc5 c2 Nbc3 b1B Nd1 f5 Qa3 Qe7 d8Q g2 d7 g1R d6 Rb8 a8B Qf7 a7 Ba6 Qc8 Qg7 d8N Rb4 d7 Rb6 Nb7 Qf7 d8B Nf6 Be7 Rg8 h8Q Nh7 Na5 Ba2 Rh3 B2c4 Nb3 Qg6 Bd2 c1Q Na1 Bg7 Bd5 Bf6 Rg3+ Kh4 Kf4 e3 Bf3 Rh1 Rg2 Kh3 Rg1+ Kh2 Rg3 Qc2 Nc1 Qb3 Bd3 e2 Rg4 e1Q Be3 Nf8 h7 Qg1 Rg3 Bh4 Rg4 Qe6 Rg6 Qf7 Rf6 Qfg6 Rf7 Nd7 Rf8 Nf6 Ke5 Bcb5 Bh6 Qbf7 Kf4 Bc4 Qg7 Q1g2 h8N Nh7 Qd4 Re1 Qdd8 Re2 Qd4 Qh5 Ng6 Rd2 Qh8 Bcb5 Bc2 Be2 Bd3 Bf6 Nh4 Qgg6 Ng2 Bg5+ Ke5 Bh4 Kf4 Qhg5+
r2n1Q2/2bkqq2/r7/3N1N1b/3R1P1B/b3pKNR/Nbb1PBB1/Q3B1Q1 w - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 cxd5 f5 gxf5 Nc6 axb5 Ne5 h4 g4 Rh2 Nf7 Rh1 Ng5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 f4 a5 Kf2 e5 d4 c5 b4 h5 d6 h4 f6 c4 d7+ Kf7 d5 g3+ Kf3 c3 d6 Ke6 g6 c2 b6 g2 g7 a4 b5 a3 f7 h3 b7 a2 b8B h2 b6 Rh7 b7 Qe8 d8N+ Kd7 Nh3 g1B Bd2 c1Q Nc6 Rh6 Bg2 Qb2 Ng5 Qc1 Ne4 Rh8 Be1 Qc5 Nb4 Bd4 Nd5 Nh6 g8Q Ra6 Ng3 Bb2 Nbc3 Qc4 Qg6 Qe7 Ba7 Qc7 Rc1 a1B Na2 Qc4 Baf2 e4+ Ke3 Qc7 Rc4 Be5 b8Q Bab2 Qa1 Bb7 Qg8 Bc6 Qa7 Ba4 Rd4 Bc2 Qg7 Ba3 Qf6 Bg7 f8B Qf7 Be7 Ra8 Bd8 Qe7 Qf8 Nf7 Qb6 Qh4 Be7 Nd8 Bg5 Qh5 Bh4 Qf7 Qa7 Kc8 Qb6 Qce7 Qbb1 Kd7 Qd1 Kc6 d7 Bc7 Qdc1 Nb7 d8N+ Kd7 Ne6 Nd8 Qd1 Bge5 Ng7 Bf6 Rg1 h1B N7f5 Bh8 Bh3 Bf3 Rh1 Bh5 Bg2 Bg6 Rh3 Bhe5 Bg1 Bf6 Kf2 e3+ Kf3 Bg7 Bgf2 Bh8 Bc3 Bg7 Qg1 Bh8 Bce1 Bg7 Rd3 Bgb2 Rd4 Bh5+
1nqk1b2/1Bnp1K2/1RR1QRR1/nN1nN3/q2P3n/P6N/r1rQ4/2BNQ3 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Ba6 c4 Bb5 cxb5 Rh7 Qg4 Rh6 Qd1 Rh8 Ke2 e5 Kd3 c5 Ke4 g5 f4 b3 h4 b2 d4 c4 a6 g4 f6 c3 Kf5 c2 Kg6 g3 b6 g2 f5 e4 b7 e3 a3 e2 a7 e1Q h6 Bb4 h7 Nc6 b8R Qc8 f7+ Kd8 f8Q+ Qe8+ Qf7 Qe4 h5 Qe5 h6 Qc7 f6 Qf4 Nh3 g1N Qe6 Qd6 f7 Qe7 f8R+ Kc7 Nc3 b1N Rb6 Qcd8 Ba6 Qc8 Bb7 Nf3 Qd2 Nf6 Rg1 Ne8 Rf6 Kd8 Nd1 Nc7 Qee1 Qd6 Kf7 Nh4 Rgg6 Nc3 Qe6 Re8 h8N Nb8 h7 Qc6 Rb1 Qb5 Rc6 Qa4 Qee1 Bf8 Rbb6 N3d5 Qe6 Nba6 Qee1 Rb8 a8N Re6 Rf2 Re3 Rff6 Rb3 Qe6 Rb2 Qee1 Ra2 Qe6 Ne8 Nc7 Ra8 Nb5 Nb8 Rh6 Ra7 Ng6 Nec7 h8Q Ra5 Ne5 Ra6 Bb2 c1N Rhg6 Nb3 Bc1 Ra7 Qhh6 Ra8 Qhe3 Ra5 Nbc3 Rc5 Qee1 Na5 Nb5 Rcc2
BNr5/R3R1Q1/1qR3qQ/N2nq1q1/6p1/k2b1RPr/1n1QP3/B1B1BKn1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 fxe5 d5 axb5 g4 c4 Be7 cxd5 Bg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 b4 Kd7 d4 a5 b6 c5 d6 Kc6 e6 Kb5 d5 f5 d7 h5 d6 a4 g6 f4 g3 f3 e7 a3 e8R a2 b7 h4 g7 h3 Nd2 h2 Bg2 c4 Nb3 Ka4 b5 f2+ Kf1 c3 b6 c2 Re7 Qf8 d8R Qf6 d7 Rh4 Rf8 Qf5 d8B Rh3 Na5 Na6 b8Q Nc5 b7 Nf6 g8Q Nd5 Nf3 Nd3 Nd4 Nb2 Ndc6 Qg6 Rf3 Bf5 Qd6 Bd3 Qd2 Rc8 Qde6 Ka3 b8B Qf5 Be5 Qg6 Rg1 h1Q Qg7 Qh2 Nb8 Qh1 Rb1 a1Q Qef6 Qh2 Qh4 Qb6 Qhh6 Qh1 Rf6 Qh2 Rc6 Qh1 Be4 Qf3 Bc3 Qf7 Bc7 Qg6 B7e5 Qa2 Rh1 Qc4 Ra1+ Qa2 Kg2 f1N Bed4 Nh2 Rf1 Nf3 Bf6 Ng1 Rf3 Qb7 Kf1 Qc7 Bfd4 Qe5 Bf2 Ka4 Be1 Qa3 Rb1 Qb4 Ra7 Qb6 Bd4 Nc4 Ba1 Nb2 Re7 Nd1 Rb5 Nb2 Rbc5 Ka3 Rb5 Qa7 Rbb7 Qb6 Ra7 Nb4 Rc5 Qee6 Ba8 Qef5 Rc6 Qfh5 Qdf4 Nd5 Be3 c1Q Qfg5 Qc3 Bc1 Qe5 Qd2 Qhg5
6qB/1KNQRq1r/1RB5/1p5P/NP2Qq1r/5b1N/1QNRr2k/b1R2r1n w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 Nc6 gxh5 Na5 a4 Nc4 a5 Nb6 axb6 Be6 Ra6 Bd7 Ra1 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 Kh4 Kc6 a5 d4 g5 b4 e5 f4 a4 h6 e4 d6 a3 h7 g4 f6 g3 f7 g2 b7 a2 b8R e3 d5 e2 d7 e1Q d6 Qe5 f5 Qee8 f6 Qe5 Qe2 Ra4 Rb6 Bg7 f8N Ba6 f7 Qde8 Na3 Q8e6 d8R Qh5 Bb2 Nf6 Nh3 g1R Nc2 Ng4 Qe4 Rg2 Re1 a1R Nd7 Re2 f8N Qg8 Nc5 Qhf7 d7 R4a3 Na4 Bb7+ Kc5 Rd3 Bg2 Rd4 Ne6 c6 Rhf1 Rc4+ Kd6 c5 Kc7 Rd4 Kb8 c4 Nc7 c3 Rc1 Bf6 Rf2 Rb1 Re8 Bc6 d8Q Rd7 Qc4 Bf3 Qe4 Re7 Kb7 Be5 Na1 c2 Qc8 Rd7 Re7 Rd4 Qd7 Bf6 Rd1 c1Q Nc2 Qf4 Rff1 Rc4 Rd2 Nf2 Rc1 Nh1 Nf2 Kg5 h4+ Kh5 Nh3 Ra1 Ree6 Kg4 h5 Kg3 Re7 Rb1 Ba3 Ba1 Bb2 Kh2 Bf6 Qgg3 Bd4 Rf8 h8Q Qgg8 Qh7 Ra8 Bh8 Rd8 Qd4 Rd7 Qb2 Rcd4 Rg1 Rf1 Qg7 Rff2 Rc1 Rf1 Qh7 R7d6 Qf5 Rh6 Qd7 Rh7 Qed5 Be4 Q5c6 Qd6 Bf3 Bd5 Bg2 Rh4 Bf3 Qdf4 Be4 Bc4 Qce6 Bd3 Bc6 Be4 Qed5 Bg2 Qe4 Bf3
qR2B3/qQ1nq1pq/4rNKP/RNB1Q1Pr/3Q3B/6n1/4Qn2/2N1b1kB w - - 0 1 illegal: No proof kernel
b2b4/BP1qQr1r/1Q1QqN1b/1R2n2K/3p3q/1b4RB/kB1PB3/1N2N1N1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 c4 Bg7 b4 Bf8 c5 Bg7 c6 Bf8 b6 Na6 b5 Nc5 Rh5 Nf6 Rh1 Nb7 cxb7 Ng8 Ke2 Kf7 Kf3 a5 Kg4 e5 b8B d5 f4 c5 b7 h5+ Kh4 a4 g4 c4 b6 a3 f6 Ke6 g6 e4 g7 a2 g5 e3 g6 e2 Rh3 e1Q+ Rg3 c3 Bb2 c2 Be2 c1Q Ba7 Qc6 b8Q Rh7 Qb3 Nh6 g8B+ Nf7 g7 Qdd7 Qb4 d4 f5+ Kd5 Qe7 Qce6 Qc7 Ne5 f7 Rb8 f6 Rb7 Kg5 h4 Qb8 Rh8 Bh7 h3 g8N h2 Bf5 h1B Bh3 Bh6+ Kh5 Rc7 f8Q Rh7 f7 Ba6 Qfd8 Bc4 f8N Bb3 Ng6 Rb7 Nh4 Be4 Rd3 Kc4 Qbd6 Rc7 Nf6 Ba8 b7 Qf2 Nc3 Qg3 Re1 a1B Nb1 Qf4 Nhf3 Qe4 Ba3 Bc3 Bb2 Ba5 Rd1 Rf7 Ne1 Bc2 Bc1 Qc8 Qef8 Rfe7 Nc3 Kb3 Rg3 Rh7 Ba3 Rcg7 Qfe7 Rf7 Rc1 Bd1 Nb1+ Ka2 Bb2 Bb3 Rc5 Qcd7 Rb5 Qf4 Q8c7 Qe4 Qcc5 Bd8 Qcb6 Qh4+
K1qN1Nk1/Q2q1pBR/1Q2B2Q/Qr4R1/nNq5/r3N3/nP1r1P2/rBb5 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Bd7 exd7 Kg6 Rh5 Bg7 Rh1 Bf8 Kd2 Kg7 Ke3 a5 Kd4 e5+ Kc5 h5 g4 a4 b6 a3 b7 c6 g6 h4 g5 h3 Qa4 a2 Qa5 h2 Nh3 e4 Nf4 e3 Bc4 e2 Na3 e1R Nd3 Rh5 Nb4 Re5 Nac2 Kh8 g7+ Kh7 Ne3 Re4 g6+ Kh6 Qb6 Qh4 d8N Ree5 Ne6 Nf6 g8Q Ra3 g7 Reg5 Qa5 Na6+ Kb6 c5 Ka7 Ne4 b8Q Nc3 d7 Na4 d6 Rd5 d8Q Rd2 d7 Rf5 Bd5 c4 Qdb6 c3 d8N c2 Ka8 Qc4 Q8a7 Be7 Rb1 a1R Qf8 Kh7 g8B+ Kh8 Rg1 h1Q Rg5 Bf6 Qfd6 Qd1 Bh7 Bc3 Bg6 Kg8 Nf8 Bd4 Be6 Rb5 Qf4 Be5 Qh4 Bf4 Qh6 Qg4 Bd5 Qd7 Be6 Rd6 Bd2 c1Q Bc3 Rd2 Bg7 Q1c2 Rh1 Q2c3 Nbc6 Nb4 Bb1 Na2 Nb4 Re2 Nd1 Bc1 Ne3 Rd2 Qf6 Qe5 Rh7 Qec5 Qh6 Qcc8+
b4qq1/1k2p2n/1Pb1q1R1/5BQb/2N1R1Q1/2N1Q1B1/1KrRPb1R/Q1nN4 w - - 0 1 illegal: No possible last move
1nQNN2N/1nR2Qbn/2Bnb1q1/7p/1KR3B1/b1P3Q1/1Q2rB1P/2b1Bk2 w - - 0 1 illegal: No possible last move
rr5R/Q1nK3P/N6k/1BnpQ3/4R1q1/BN1rnnr1/2NP4/B1bNQ1B1 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 d6 b4 Ba6 b6 Nc6 b7 Rc8 b5 Ra8 b6 Bb5 cxb5 Nb8 Ke2 Kf7 Ke3 a5 Kd4 e5+ Kd5 c5 f4 g5 h4 Kg7 Ke6 d5 f6+ Kh6 f5 a4 f7 c4 f6 g4 Nc3 e4 Qe1 g3 Nd1 e3 Ba3 c3 Ne2 c2 Nd4 c1N Nb3 Bd6 f8B+ Kh7 h6 g2 f7 g1N h5 Bb4 Bc5 Na6 b8N e2 b7 Nf6 b6 Nf3 Bg1 Ng4 f8Q Qf6+ Kd7 Qf4 Qc5 Nc7 Nc6 Nd3 b8N Ne3 Na6 Rhb8 b7 Qg5 Rh2 Nf4 Ncd4 Nfe6 Nc2 Qg4 Qa7 Bc3 Rh3 Bb2 Rh1 Bc1 Ra2 Kg8 h7+ Kg7 h8B+ Kh7 Ba1 Kh6 Qg3 e1R Bb5 Re2 Qe1 Rg2 Rh2 Rg3 Re2 Kg5 h6 Kh5 h7 Kh6 Bc5 a3 Rb2 a2 Ba3 Rc8 b8Q Rf8 Qe8 Rb8 Qe7 Rf4 Qd6 Rd4 Qe5 Rd3 Ncd4 Nc2 Re4 Ne3 Rc2 Na8 Rc8 Nac7 Bc3 a1R Rh8 Rb1 Ba1 Ra8 Nc2 Rb2 Nbc5 Rb4 Bc4 Rb6 Bb5 Rbb8 Nb3 Nc5+
1R1RQBN1/rP1BRK2/pN6/b1N3r1/P4Q2/bb1bn3/3kNr1B/1B2n1r1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 f4 Bf8 fxg5 Bh6 h4 Nc6 g4 Nf6 g6 Ne7 g5 Bf8 g7 Nc6 g6 Nb8 Bg2 Ng8 Bf1 Qg5 hxg5 Ba6 Bd2 Bb7 Bc1 Bc8 Kd2 Ke7 Kd3 Ke6 Ke4 c5 a4 h5 b4 h4 b6 d6 b5 h3 b7 c4 b6 f6 Qd2 h2 Ba3 a6 Qf4 c3 Nd2 c2 Rd1 c1B Nc4 Ne7 g8N Rh3 g7 Bd2 g6 Nd7 b8B Nf5 b7 Ne3 Nb6 d5+ Kd4 f5 Nf6 Ba5 g8N Bd6 g7 Rh5 Ne4 Rg5 Bc7 Ra7 Nc5+ Kf7 e6+ Kg6 e7 Ne5 e8R Nd3 Re7 Ne1 Bh3 Bd7 Bg4 Bb5 Bh3 Bd3 Bg4 N3g2 e4 Ne3 Bh3 Kh5 Ne2 Kg6 Rg1 h1R e5 Rh2 e6 Rf2 Ne4 Bdb4 Ke5 d4 Rg4 Kh5 Kf6 Bd6 Kf7 Bdb4 Qg3 f4 Nc5 f3 Qf4 Bc4 Nh6 d3 g8B d2 Bh7 Ba2 Bb1 Bb3 Bb2 Ba3 Ng8 Ra8 Bg7 Ra7 Rc1 d1B Bf8 Bdc2 Rd1 Bd3 Rg2 Bf5 Rd8 Bd3 Qf6 Kh4 Bh2 Kh5 Bf5 Kh4 Rg4+ Kh3 Rgd4+ Kg2 Rb8 Kf1 Qh6 Rfg2 Bg4 f2 Rdd8 Rg1 Qh4 N1g2 Bh3 Ke1 Qf4 f1R Rc7 Nd5 e7 Rf2 e8Q Nde3+ Be6 Kd2 Re7 Bc2 Bf5 Ne1 Bd7 Bb3+
4B1Nr/1RK1R2Q/bn4NN/2n3N1/bk2P3/3q1pp1/2PR1r1n/B2Q1BbR w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kf3 f5 Kf4 d5 h4 a5 e4 g6 b4 a4 b6 d4 b5 a3 b7 a2 e6 g5+ Ke5 d3 h6 d2 h7 g4 b6 f4 c6 g3 c7 f3 h5 Na6 b8Q Qe8 b7 Qd8 h6 Bd7 c8R Nb4 Rc7 Nd5 Nh3 Nb6 Nc3 Ra7 Ng5 Nc8 Bb2 Ra3 Qa7 Ra6 b8R Nf6 Rbb7 Rd6 Rh2 Nb6 Nd5+ Ke8 e7 Ba4 Rc1 a1N Rg2 Nb3 Ba1 Nc5 Rd7 Rg8 h8N Bg7 Ng6 Rh8 h7 Ng4+ Kf5 Bh6 Rf2 Nh2 Ke5 Bf8 Rdc7 Qd7 Rg2 Qb5 Rb1 Qd3 Re2 Rg8 h8N Rd8 Nhf7 Rh8 Rd7 Bg7+ Kd6 Bd4 Nh6 Bg1 Qe1 d1B Rd2 Be2 Kc7 Qd4 Qd1 Ba6 Ng8 Qd3 Ne3 Qb5 Nf5 Qd3 Nh3 Kf7 e8B+ Ke6 Rf7 Rd4 Nfh6 Rd5 Kb8 Kd6 Ng5 Rd4 Rfd7+ Kc6 Rc1 Kb5 Re7+ Kb4 Kc7 Rd6 Qb8 Qb3 Qd8 Rd3 Qd7 Re3 Qf5 Re2 Qf7 Rf2 Qh7 Qc4 Bd3 Qd5 Qe2 Qc4 Re1 Qb3 Qd1 Qc3 Be2 Qd3 Rf1 Ng4 Re1 Bh2 Rh1 Bg1 Bf1 Nh2
1b5k/1q2R1b1/n3Qrr1/n3Rp2/NKQB1Pn1/PB2N2r/pB2N1B1/4Q1Q1 w - - 0 1 illegal: No possible last move
N2BQQ1K/2Qr4/3nNB2/n3p1N1/B1N2b2/bR1PnbR1/k1P1Bp2/2q2r2 w - - 0 1 illegal: No proof kernel
2Q2rb1/B1b1q2R/B2R4/r1P3N1/1rN1p1PN/2RnBK2/1p1RnB1k/2b1Q3 w - - 0 1 illegal: No possible last move
1b2bqk1/n1Q4R/N1Rb1Q2/2p1BN2/P3p2r/5NBB/R2KNPrB/n2n4 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 a4 g5 d4 b5 h6 c5 d6 e5 f6 b4 d5 g4 h7 g3 h5 g2 h6 e4 d7 b3 a6 b2 d6 Qe8 d8B Bf5 a7 Ne7 d7 Ng8 Bf4 Be7 Bg3 Nc6 Nd2 b1N Ne2 g1B Ra2 Bf8 Bdc7 Nb8 d8N+ Kg6 f7 Nd7 Bh3 Ne7 Nc6 Nd5 Ncd4 Nb8 N2f3 Bd6 f8R Nbc3 Kd2 Bd7 Nf5 Bh2 Qb3 Qd8 Qb6 Nd1 Rg8+ Kf7 Rg6 Rg8 h8B Qf8 h7 Be8 Bhe5 Nb4 h8Q N8c6 Rh6 Rc8 a8N Na7 Bb8 Rc6 Nc7 Nc2 Na6 Na1 Qd8 Rg4 Qhf6+ Kg8 Qc7 Rh4 Rh7 Nc3 Rb1 Nd1 Rbb2 Rb6 Rb1 Rb3 Rbb2 Re3 Rb6 Rb3 Rc6 Rb7 Qa5 Rg7 Qc7 Rg5 Bgf4 Rg1 Bg3 Rg2 Bd4 Qf7 Qc8 Nb5 Bf4 Be7 Bfd6 Be5 Qd7 Qf8 Bc3 Bd4 Bh2 Na7 Bbg3 Be5 Bd4 Bc7 Bde5 Bb8 Qc7 Bd6
1q1b4/4r1N1/r1nKN2Q/P1RQ1N1R/2rp3n/2NB1n1k/PB4p1/1BB1R2b w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 b5 h4 g5 f4 g4 c4 d6 c6 e4 h6 g3 h5 e3 h7 e2 c5 e1N c7 b4 c6 b3 h6 b2 Rh5 Ng2 Ne2 Ba6 c8B Be7 c7 Bb5 Nd4 Be8 Bd3 Na6 Nc3 b1R Qf3 Kf7 f6 Rb4 Nf5 Kg6 f7 Rc4 f8N+ Kf6 Qd1 Nh4 Ne6 Nc5 Neg7 Ne4 Bb1 Bd7 Ba6 Nd2 c8R Ndf3 Rc5 Qb8 Qd3 Bd8 Qd2 Re4 Bad3 Re7 Qd1 Bc8 Kc6 d5 Qh1 Rc7+ Kd6 Ne7 Qd1 Rg8 h8B Nc6 h7 Re8 Qb3 Bb7 Bd2 Ba6 Ne4+ Kg6 Rc3 Ree7 Nd4 Bb5 f5+ Kf7 f6 Kg6 f7 Ba6 Ne8 Nfe5 Bbc2 Bc4 Re1 Na7 Nf5 Ba6 Bc1 Bb7 Bf6 Bc6 h8Q Bb7 Neg7 Bc6 Bb2 d4 Bg5 Bd5 Bb1 Bb7 Nf6 Bh1 Qd5 g2 Ne4 Nef3 Bf4 Qb5 Rc6 Qb8 Nc3 Kf6 Bfc1 Kg6 Rb6 Kf6 Rb7 Rc4+ Rc7 Kg6 f8N+ Kf6 Nfe6 Kg6 Nf4+ Kf6 Rh6+ Kg5 Nfe6+ Kg4 Rh5 Kh3 Qh7 Qb3 Rc5 Nc6 Qh8 Ra6 Qh6 Qb8+
1Q2rn2/N1Q1B2Q/1rN3pn/Kb6/r1R1R2p/2b1QBqk/P1N1B2P/b3B3 w - - 0 1 legal: proof: d4 a5 g4 b5 b4 f5 bxa5 e5 gxf5 b4 dxe5 b3 cxb3 Ne7 b4 Ng8 b5 Bc5 Be3 Ba3 Bc1 Bf8 Kd2 Ke7 Kc3 c5 e4 h5 f4 d5 f6+ Ke6 a6 c4 f5+ Kd7 b6 h4 f7 g6 b7 Qb6 f6 Ke6 a7 Qc5 Qh5 Rh7 Nf3 Be7 f8Q Bd6 f7 Qb6 Ne1 Nf6 Nc2 Nbd7 b8N Ba6 Be2 Qf2 Nc6 Nb8 Nba3 Ng4 Re1 Qf4 Qg7 Nd7 f8B Bb5 Bd2 Nh6 Rac1 Re8 Be7 Nf8 a8B Rh8 Qh7 Qg3+ Qf3 Bb8 Kb4 c3 Ka5 d4 Qe3 d3 Qb6 Ba7 Qc7 Bd4 Bb7 Rb8 Ba8 Rb6 Bb7 Ba4 Nb5 Rg8 Nba7 Bb5 Rh1 Rh8 Be1 d2 Rf1 d1R Rf4 Be3 Ba8 Rd4 Rg4 Bg5 Bb7 Bf6 Ba8 Rb4 Rf4 Bg7 Rg4 Kf7 e6+ Ke8 e5 Bf6 Ne3 c2 Re4 Bg7 Bg5 Rg8 e7 Kf7 Bb7 Ke6 Ba8 Bf6 e8Q+ Be7 Qed8 Bf6 Qdb8 Bg7 Be7 Rh8 Nd5 Kf5 e6 Bf6 Ne3+ Kg5 Bc5 Bc3 e7 Rg8 e8Q Rh8 Ra1 c1B Nc2 B1b2 Rc1 Ba1 Bd6 Nd7 Qe6 Re8 Bc5 Nf8 Qh3 Qg4 Qe3+ Kf5 Be7 Qf3 Re5+ Kg4 Re4+ Kh3 Rd1 Nf5 Rdd4 Nh6 Rc4 Qg3 Ne5 Qf3 Rf4 Qg3 Baf3 Qg2 Rfe4 Qg3 Nec6 Ra4+
Q2N1R1q/5RB1/1p3K1b/1rnQ1NBN/1r1rb1Pn/3nB1p1/3P3k/4N1RB w - - 0 1 illegal: No proof kernel
1Nr1RbQB/1K4NR/P2N4/Q6P/1Q4BQ/nnNr2b1/B1p1b2p/k3n1q1 w - - 0 1 illegal: No proof kernel
NNQ1K3/3n1QrP/B1Np3R/B5Q1/1nbq2Nr/6p1/5PR1/kbb1Br1B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 Kb5 g5 c4 d6 a4 b6 h4 e6 a6 g4 c6 g3 h6 Nd7 a7 Rh7 c5 Rb8 a8N Qe7 h5 Bb7 f6 Rc8 c7 Bf3 a5 Bg2 a6 Bh3 Kc6 b5 a7 b4 f7 b3 Bd2 Kd4 Be1+ Ke5 Qd5+ Kf6 Na3 b2 Nb5 b1B Nd4 e5 Ngf3 e4 Ba6 e3 Ne5 Bhf5 Ng4+ Kg5 Qe6 Bg7 f8N Kf4 Qf7 Rh8 h7 Ke4 h6 Nb6 Nd7 e2 Nb8 Qe5 Rg1 Rd8 c8Q Nd7 Rg2 Ngf6 Qb7 Qf4 Qb5 Rdg8 Ba5 Bd3 Rh1 e1R Kc7 Bb1 c6 Be6 Qg5 Bc4 Rhh2 Bf8 Kd8 Kd3 c7 Rg7 c8Q Nd5 Ndc6 Rf1 Ke8 Kc2 Rh3 Kb2 Be1 Rhg8 h8B Qd4 h7 Ka1 Ba5 Nb4 Rh6 Rg6 Be5 R8g7 Bf4 Rf6 Bd2 Rf4 Be1 Be7 Nc7 Bf6 a8B Be5 B8b7 Re4 Na8 Bf4+ Ne7 Bc1 Bd5 Rf4 Nec6 Bcd3 Rgh2 Bb5 Bh1 Bc4 Rg2 Re4+ Nge5 Rh4 Ng4 Bc2 Re6 Be4 Rh6 Bb1
3nr3/2N1BRP1/2bK2Bk/1R1p1P2/1Q1rnbRB/n1pqN1Q1/QrR5/3B4 w - - 0 1 illegal: No possible last move
1b3rnN/3brPQ1/3n2B1/1p1P1qB1/1r3RB1/2n1N3/BkpQNK1N/R4R2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 Kd6 a4 g5 f4 c5 a6 b5 a7 e5 h6 g4 a5 g3 a6 c4 h7 e4 h5 g2 h6 c3 f6 e3 f5 c2 f7 e2 f6 Qc7 Qd2 Qa5 Nc3 Qa2 Kf2 e1N Nd1 Nf3 Bd3 Ng5 Bg6 Qa3 Ne3 Qb2 Nf3 g1R Nh2 Rg3 Rf1 Be7 f8R Kc7 d6+ Kc6 d7 Nf7 d8N+ Kd6 Ne6 Rg4 Nf4 Bd7 Ne2 Nc6 Qd1 Nb4 Qd2 Rb8 a8B Nd5 a7 Nc3 Bd5 Rb7 a8B Qb3 Bf3 Qe6 Bd5 Rc7 Ba2 Qf5+ Bf3 Re4 d5 Ke5 Rd8 Rcc4 Rf8 Nd6 Rf7 Rb4 Rf8 Qh5 Bg4 Bd8 Rf7 Bc7 Rf8 Bb8 Rf7 Ne7 Rf8 Rg8 h8Q Qg5 Rf7 Rf8 h7 Ng8 Qg7 Qf5+ Kg1 Rec4 h8N Rcc8 Rf4 Rce8 Kf2 Bc6 Ra7 Re7 Ra3 Be8 Rb3 Bc6 Rbb1 Bd7 f7+ Qf6 Ng2 Bf5 Qd3 Na4 Rf3 Bc8 Qd1 Bd7 Rf5+ Ke4 Bg5 Qe5 Qe1 Kd3 Rf4+ Qf5 Qc1 Rbe4 Ne3 Rb4 Qa3+ Kd2 Rf1 Nc3 Qb2 Nb1 Qc1+ Kd3 Nd4 Kc3 Qd2+ Kb2 Ne2+ Nc3
2Bn4/bRQ1bPr1/1RQpR3/4B1B1/n1Q1nq2/2B1R1p1/2NNK1Pk/2r1b3 w - - 0 1 legal: proof: e4 c5 d4 g5 dxc5 f5 exf5 b5 a4 g4 axb5 g3 h3 Bb7 Bd3 Bf3 Bf1 Bg4 hxg4 Bg7 Qf3 Bh6 Qd1 Bf8 c4 Kf7 f4 Kf6 b4 e5 b6 h5 c6 a5 b7 a4 g5+ Kf7 b5 h4 b6 h3 c5 h2 c7 a3 c8R e4 c6 a2 f6 Kg6 f7 Kf5 c7 e3 g6 e2 g7 Kg4 f5 Na6 b8B Nh6 g8Q+ Qg5 f6 Ra7 b7 Kh4 Qd5 Qf4 Na3 Qc4 Bg5+ Kg4 Qc6 Rh7 Nc2 Be7 f8B Qf4 Bg7 Nf7 Re8 Nd8 c8Q Nc5 Nf3 Na4 Rb1 a1B Q8c7 Bd4 Qgc4 Bdc5 Bh8 Rg7 f7 Ra6 Rb5 Ba7 Nd2 Rb6 Rg1 h1N Re5 Rb4 Re6 Nf2 Rh1 Rb5 Rhh6 Rc5 Re3 Ne4 Rd6 Rg8 Bc3 Rg6 Re6 Rg7 Rh8 Kf5 Rhh6 Kg4 Qc8 Kf5 Bbe5 Kg4 b8R d6 Rh8 Kf5 Q8c7 Rd5 Nb1 Nf2 Qb3 Nb7 Rd3 Ke4 Rhc8 Nd8 Rb6 Qg4 Kd2 Qh4 Rcb8 e1B+ Kc1 Qg4 Rf3 Qf5 Ba6 Qf6 Bc8 Qf4+ Ne3 Kd3 R8b7 Ne4 Kd1 Rb5 Nd2 Rb4 Kc1 Ke2 Nc2 Rb5 Rd3 Kf2 Kd1 Kg1 Ke2 Kh2 Qbc4 Rb1 Re3 Rc1
b3NRBr/Qp1R1rr1/B1q2QN1/2bKpR1P/7B/k4P2/B1b4n/R1n3N1 w - - 0 1 illegal: Other
3kB2n/1pR1nR2/3P2n1/1brPN2Q/1b1RB2N/3B2RQ/p2r4/1rBqQ2K w - - 0 1 illegal: No proof kernel
1Nqnb3/PR1RN3/2rBrb2/2r1Q1Pk/RBn1p1R1/3p4/BQ2B2b/1N1K4 w - - 0 1 illegal: No proof kernel
RB2Q3/pr1BQ2n/2B2rRn/k1N2r2/1q3RNN/Pp2K3/1b4PN/2bb1R2 w - - 0 1 legal: proof: e4 c5 b4 f5 exf5 d5 c4 g5 cxd5 c4 h4 Qa5 hxg5 Qc5 bxc5 Bd7 Be2 Be6 Bf1 Bc8 Ke2 Kd7 f4 Kc7 d4 b5 g6 h5 f6 e5 d6+ Kc6 g7 h4 a3 c3 f5 h3 d5+ Kb7 c6+ Kb6 c7 b4 d7 e4 d8Q b3 f7 c2 d6 e3 d7 h2 f6 Be7 f8N Rh4 f7 Bg5 Nc3 Re4 Qe8 Re7 d8R Re5 Ne4 Ka6 Qe1 Bg4+ Nf3 Bd7 c8B+ Kb6 Nc5 Bf4 Ng6 Nh6 g8N Rf5 f8R Be5 Nf6 Bb2 Ngh4 Bc6 Qe7 Nd7 Ng4 Nf6 Bd7 Rb8 Bd2 Rb7 Ra8 Kb5 Ba5 Nh7 Bc7 Rf6 Bb8 Kb6 Kd3 e2 Ke3 Be4 Rc1 Bg6 Rd1 Bh5 Rd4 Rf5 Rg8 Rf6 Rg1 h1R Nfh2 Rf5 Rb4+ Ka5 Rg6 Rf6 Qd1 e1Q+ Qe2 Rf5 Rf4 Qb4 Qe1 Rf6 Bfb5 Rf5 Rgf1 Rf6 Nf2 Bd1 Bbc6 Rg1 Qe2 Rf5 Nfg4 Rf6 Re1 Rf1 Qe8 Rf2 Rf1 Rf5 Qf3 Rf6 Qfe4 Rf5 Q4e7 Rf6 Rd4 R2f5 Rdf4 c1B+
k4n1q/p1Rb4/1rP2rPR/K3bQ1B/3p2BN/6B1/1N1RN1rN/B2nbQ2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 e5 Kc3 h5 Kb4 d5 g4 Kd7 f4 Kc7 c4 Kb7 g6 d4 b6 h4 g7 h3 f6 h2 g5 e4 f5 e3 f7 e2 f6 e1B+ Nd2 Rh4 Ra2 Qd5 Be2 Rf4 Bh5 Bg3 Ne2 Rf5 Ka5 Qc6 b4 Qd7 b5 Na6 c6+ Kb8 c5 Qe7 b7 Qe5 Bb2 Rf3 Nc4 Rf4 Qf1 Rg4 Ba1 Nb4 Nb2 Be7 f8N Bh4 f7 Qe6 Ng6 Qf6 f8Q Be1 Nh4 Qf4 g6 Qe3 Q8f5 Nf6 g8N Bd7 Nh6 Rg2 Ng4 Bf8 Ra3 Qg1 Rd3 Bd6 Rd1 Nh7 Rd2 Kc7 b8R Be5 Rf8 Nc2 Rf7 Kb8 b6 Ne3 b7 Nd1 Re7 Nf8 Rh7 Kc7 b8B+ Kc8 c7 Kb7 Rf7 Qe3 Rh7 Qh6 Rg7 Qh8 c8B+ Kc6 Bd6 Rb8 Bc7 Rb6 Bb8 Bf6 Bg3 Be5 Re7 Kc7 c6 Kb8 Rf7 Be8 Rc7 Bd7 Rg1 h1R Nh2 Rf2 Rg2 Rf4 Rf2 Ka8 Rf3 Rg1 Re3 Bd6 Re7 Rf2 Rh7 Be5 Rh6 Rgg2 Qf3 Be8 Bcg4 Bd7 Qd3 Rf7 Qdf5 Rf6
N1K3r1/2B2bbQ/4B1RQ/NNPq2Q1/5n1R/1rqp1RPN/p5n1/Q2bk3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kd5 a5 b4 d6 c4 h4 f4 e4 c6 e3 c5 a4 c7 a3 g3 h3 f6 Kg6 b6 Kf5 g6 e2 b7 Kg4 g7 h2 b5 Qd7 b6 Qa4 f7 Qc2 f5 Rh7 f6 Rh3 Bf4 Nc6 b8N Qh7 b7 Qh8 Nc3 Rh7 Nb5 Nd8 Nh3 Kf3 Nc6 Nh6 g8Q Bg7 f8Q Bg4 b8Q Ne6 c8N Nf5 f7 Nh4 Nb6 Ng2 Qbd8 a2 Qg5 Rh6 Qh7 Qg8 Na5 Re8 Kc6 d5 Kd7 d4 Bc7 d3 Qb1 e1Q Na8 Qc3 Qe1 Bh5 Rb1 Nef4 Rb3 Rc8 Qa1 Rb6 Be2+ Ke3 Bg4 Kd2 Be6 Bd1 Qd6 Ke2 f8R Rcb8 Rf6 Kd2 Rf1 h1B Rf3 Ke1 Rb4 R6b7 Rg6 Re8 Bg4 Qd5 Be6 Rg8 Rd4 Nh5 Rh4 Nhf4 Nd4 Rb3 Nb5 Bf8 Kc8 Bh6+ Qdd8 Bg7 Qgh6 Ne3 Rf2 Be4 Rf3 Neg2 Rg5 Bg6 Rgg4 Bf7 Rg6 Bf8 Qdg5 Bg7+
rqN4R/b1Q1Q3/bB4P1/8/BpP2R2/N2kN1q1/1Rp2RNn/1n1rB1Kq w - - 0 1 illegal: No possible last move
2kB1R2/R1NRr2Q/nq3p2/4Qn1P/B1R1PN2/1Q1b1pN1/1r1K4/b2Q1qr1 w - - 0 1 illegal: Other
b1q1BB1b/3Q4/1k1N1p1q/1rN1RPP1/2K3Q1/2nnQ2N/rQBpb3/1R1B4 w - - 0 1 legal: proof: d4 b5 h4 c5 a4 e5 axb5 g5 hxg5 c4 dxe5 c3 bxc3 Ne7 c4 Ng8 c5 Be7 Nf3 Bd6 Ng1 Bf8 Kd2 h5 Kd3 d5 g4 Kd7 c4 Kc7 e4 a5 f4 f6 e6 d4 e5 a4 e7 h4 e8B a3 b6+ Kb7 e6 h3 c6+ Ka6 f5 h2 e7 a2 c5 Rh3+ Kc4 d3 b7 d2 c7 Bg7 g6 Bf8 c6 Rh6 g7 Nd7 b8Q Rg6 g5 Rh6 Bd3 Ka5 Qb2 Rh5 Nh3 Rh6 Bc2 Nc5 Nc3 Rh7 Re1 h1B Ne4 Nd3 Rb1 a1Q Nc5 Ra7 Qg4 Ba6+ Kb3 Kb5 c8Q Kb6 c7 Ba8 Qd7 Qc8 Re5 Bb5 Bh5 Ra2 e8B Ne7 g8Q Nd5 Qgf7 Nc3 Qfe7 Bg7 Qee6+ Bbc6 Qee7 Bh8 Kc4+ Ka5 Qee6 Bf3 Qee7 Be2 Qee6 Qb7 c8N Qb8 Nd6 Qc8 Qb8 Re7 Ba3 Rf7 Qb2 Rh7 Qc6 Rb7 Qed7 Rb6 Qce4 Rb5 Qe3 Kb6 Qge4 Bf1 Bhd1 Be2 Qg4 Qc7 Qc8 Qg7 Qd7 Qh6 Qb3 Qb2 Bb4 Qa3 Qb2 Qa6 Nf7 Qb7 Nb3+ Ka6 Bf8 Qb8 Nc5+ Kb6 Nd6 Qc8
3Br2Q/3rB1n1/q3PN1Q/pk3Nn1/4P1R1/1rqp1QNK/2N1B3/bQ2R2b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 g5 Kg3 f5 e4 a5 b4 d5 c4 Kd7 h4 f4+ Kh3 d4 e6+ Kc7 c6 Kb6 c5+ Ka7 c7 f3 b6+ Kb7 b5 d3 h6 f2 h7 Na6 h5 Bh6 Be2 f1R Ba3 Bd7 c8N Qf6 c6+ Kb8 b7 Kc7 b8N Be8 b6+ Kd8 b7 Kc7 Be7 Ra7 Na3 Qc3 Nd6 Kb6 c7 Nf6 c8Q Nc7 Nf5 Bg7 h6 Bh5 Nc2 Re8 h8B Kb5 h7 Bf3 Nd7 Rf2 Rh2 Bh1 b8Q+ Rb7 Rg2 g4+ Kh2 g3+ Kh3 Rb6 Qc1 Rf1 Qh6 Rb1 Bd8 Rb3 Re1 Rb7 Be7 Nh5 Nf6 Nd5 Qbf4 Rd7 Qf3 Ndf4+ Kh4 Ka4 Qb7 Nh3 Kg4 Ng5 Qb8 Ra3 Qb1 Rb3 Kh4 Kb5 Bd8 Bf8 Bg7 Bc5 h8Q Bd4 Bf8 Ng7 Bfe7 Be5 Bf1 Bd4 Ne2 Be5 Rg1 g2 Neg3 Bd4 Be2 Be5 Rgf1 g1Q Kg4 Qa7 Rg1 Qa6 Kh4 Qcc8 Kg4 Ba1 Rg2 Nh7 Kh3 Qc7 Ngh5 Qe5 Rg4 Qc3 Nhg3 Ng5+
6QB/2R1B1RQ/q1P2qRn/N7/1K1q2b1/4P2p/2rp2NB/rRnkbB1Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 g4 h5 b4 f5 g6 a5 b6 d5 b5 h4 e3 f4 g5 Kf5 g7 Ke4 g6 a4 e6 a3 b7 a2 e7 f3 e8Q+ Be6 b6 h3 c6 f2 c7 Qc8 Nf3 Rh7 Na3 Ra5 Ne1 Qd7 c8R Na6 b8B Rh6 b7 Rh4 Rg1 Rc5+ Nc4 Qf7 Bb2 Rc6 Ng2 Nb4 Bd6 Nh6 g8Q Nd3 b8B Nc1 g7 d4+ Kb4 d3 Be7 Qf6 Rb1 a1Q Na5 Bg4 c4 d2 Qe1 Kf3 Qh7 Ra6 B2e5 Qd4 g8R Rh5 Bh2 Rc5 Rc7 Ra8 Rg7 Ra7 Nc6 Ra1 Na5 Qa6 Rg6 Bg7 Qc8 Be5 Qcg8 Bf6 Be5 Bh4 Bh8 Rc6 Bd3 f1Q Rg7 Qf2 Bf1 Qe2 Qd1 Be1 Rg6 Qf6 c5 Kf2 Rg7 Qed3 Rg6 Re6 Rg7 Re5 c6 Rc5 Rd7 Rc2 Bh2 Rc3 Rc7 Qd7 Qdb3 Rc2 Qbd5 Qd8 Nf4 Qd7 Qh1 Qd8 Ng2 Kf3 Bb5 Qd3 Rg6 Ke2 Rg7 Kd1 Bc4 Qd7 Bf1 Qdd4+ Bc4 Qdf4 Nh4 Be6 R1g6 Q4e5 Bf1 Bg4 Ng2 Qd4+
bB2qN2/4R3/B1P1Q2n/2nr2k1/Q2Q3p/q2q2b1/BQpNK1Pr/B3N1R1 w - - 0 1 illegal: No proof kernel
1N1q1B2/1kqqRK2/1p1Q4/Pn1P1p1r/NN1R2B1/5B1Q/R5rN/R1bbn3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 f5 Kf4 c5 h4 Kc7 e4 g6 a4 c4 d4 b6 a6 c3 h6 c2 a5 Rh7 d6+ Kc6 h5 Rg7 d7 Nf6 Kg5 Rf7 a7 Kb7 e6 Ng8+ e7 Bg7 h7 Na6 h8Q Qc7 e8R Nf6 h6 Rf8 e5 Nd5 e6 Nc5 h7 Rg8 e7 Qd6 d8N+ Kc7 Ba3 Nc3 Ra2 Be5 Bh3 Bg7 Nc6 Bd7 Nb4 Nb7 Nf3 Ba4 Bg4 Qd7 Nh2 Bh6+ Kf6 c1Q Kf7 Nb5 Nc3 g5 Rf1 Rc8 a8B Nc5 Baf3 Nd3 Rh1 Bc2 Na4 Ne1 Qd2 Rg6 d5 Qd8 Qf4+ Kb7 Qd6 Bd1 Qc3 Rg8 h8R Rb8 Qd3 Qcc7 Qf1 Rc8 Qh3 Qcd7 Rg1 Rc2 Rh7 Rh8 Rh1 Q8c7 Rc8 Qcd8 Rc4 Rg2 Rd4 Q8c7 Kg6 Qcd8 e8N Q7c7 Re7 Rh7 Bh5 g4 Nf6 g3 Bhg4 Bc1 Nd7 Rh5 Rf1 Rf2 Rh1 g2 Kf7 g1Q Nb8 Rg2 Rd7 Qe3 Qc5 Bd2 Qf8 Nc2 N4a6 Be2 Rha1 Bd1 Qh6 Qf4 Bf8 Qd6 Re7 Bc1 Nb4 Q6d7 Qd6 Ne1
2nr1B2/3n1q2/pQ1pB3/4N1R1/K2BRb2/QQR2r1P/b2k1qPB/4nQN1 w - - 0 1 illegal: No proof kernel
BnNq2Nn/3B3Q/pP1r1q1Q/6bb/2K2N2/3r1Pp1/4QB1k/NR1Bb1R1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 b4 Ke5 c4 d5 h4 g5 f6 d4 f3 a6 h6 g4 h7 e6 c6 g3 b6 Qd7 b5 Be7 f7 Nf6 f8Q Nd5 c7 Ba3 b7 Nc6 b8N Ne3 c5 Qd6 h5 Na5 h6 Nec4 c6 Rg8 h8Q+ Rg7 h7 Bd7 c8B Bc5 c7 Nc6 b6 Be8 Nh3 Bh5 Bd7 Ba3 Qfg8 Kf5 c8B Rg6 Be3 Bc1 Nf4 Kg5 Bb7 e5 Nd2 Qf6 Qe2 Nd6 Rb1 Nf7 Bf2 e4+ Kc4 e3 Rg1 Kh4 Nb3 d3 Na1 d2 Qhg7 d1Q h8N Qdd6 Qh6 Qde7 Qgg7 Qd8 Qgh7 Ra7 Ba8 Bd2 Qd3 e2 Qe4 e1B Be2 Rc7 Bd1 Rb7 Qe2 Rc7 Nd5 Bg5 Ne7 Ra7 Ng8 Rb7 Be8 Kh3 Bd7+ Kh2 Kd5 Qg7 Kc4 Rd6 Ng6 Qgf6 Nf4 Ra7 Qf8 Nh8 Qfh6 Nd4 Nc6 Rc7 Be6 Rcd7 Na7 Nc6 Nc8 Nb8 Bg4 Rd3 Bf5 R7d5 Bd7 Rd6
2nQ1qr1/2b2Np1/2bP1B2/1NQnr3/2RBK1k1/1Q1R3p/1Rb2BBP/4Qq2 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Qf6 cxd5 Qf5 gxf5 Ba6 Ra5 Bb7 Ra1 Bc8 Kf2 Ke7 Kf3 c5 d4 a5 e4 h5 b4 h4 d6+ Kf7 e6+ Kf6 e5+ Kg5 d5 h3 b6 c4 b5 c3 d7 a4 d8B+ Nf6 e7 c2 e8Q a3 e6 a2 e7 Be6 b7 Nh7 f6 Bf7 b6 Nc6 b8R Bh5+ Ke4 Kh4 b7 f3 f7 f2 Bg2 f1B Nc3 Ra3 Nf3+ Kg4 Ng5+ Be2 Be3 c1Q Bf2 Ra8 Nb5 Qc5 Qb3 Na7 Rad1 a1Q Rd3 Qf6 Rc1 Bd1 Rc4 Rg8 Bb6 Qb4 Qd8 Bc2 e8Q Bd6 f8Q Bc7 Qc5 Nc8 Nf7 Ra5 Bd4 Qf1 d6 Qd2 Bf6 Qdf2 Qee5 Nf8 Qec3 Ng6 Qe1 Nge7 Qe5 Ra3 Bd4 Ra5 Qc5 Nd5 Ra8 Rh8 b8B Rg8 Ba7 Bg6+ Ke5 Bf5 Rb8 Bd7 Ke4 Bc6 Qca3 Qh4 Bf2 Qh6 Bad4 Qc1 Qc5 Qg5 Bfe5 Qe7 Rb6 Qf8 Bf6 Bd7 Rb8 Bc6 Ra8 Ra2 Ke5 Bb1 Ra7 Rc2 Ra2 Rd2 Rb2 Bc2 Bg3 Rf2 Bgh4 Rf4 Bhf2 Rf5+ Ke4 Re5+
1bq3r1/4N1p1/1nnpB2Q/2Pqk3/KBR4n/1R2B1R1/1rQBR1P1/1b4NN w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 h5 e4 c5 dxc5 h4 exf5 Qc7 Qh5+ Kd8 Qxh4 Ke8 Qh7 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 e5 f4 a5+ Ka4 e4 b4 e3 c4 e2 h4 e1N b6 Bb7 h5 Bc6+ b5 Be4 c6 Ba3 c7 Qe8 c8N Bc5 h6 Bc6 b7 Nc2 Ra2 Na3 Bd2 Bd6 Rh4 Na6 b8B Qh5 Ba7 Bf3 b6 Qg5 b7 Bd5 b8R Nb5 Ne7 Na3 Nc3 Nc2 Rb3 Nb8 Bae3 Be5 Nce2 Nc6 Ng3 Be4 Nh1 N2d4 Rh3 Bb8 Rg3 Bb1 Rab2 Kf7 f6 Ke6 f7 Nf5 f8B Nh4 f5+ Ke5 f6 Qf5 f7 Nf6 Qg6 Rg8 h7 Nd5 h8Q Qe4 Qhh6 Nb6+ Ka3 Qf3 Qc2 a4 Bd3 Ra6 Bf5 Qd5 Be6 Ra8 Nf5 Ra5 Bfb4 d6 f8R Rc5 Ne7 Rb5 Ba5 Rb4 c5 Rb5 Rf4 Rb4 Ra2 Rb5 Kb2 a3+ Kc3 Rb4 Rc4 Rb5 Rab2 a2 Bb4 a1Q Nf5 Qa5 Ne7 Qa6 Ra2 Ng6 Kb2 Qc8 Ka3 Nh4 Rab2 Nd7 Ka4 Rb7 Ra2 Nb6+ Kb5 Ra7 Ra1 Ba2 Re1 Bb1 Re2 Ra2 Rcg4 Na8 Rc4 Rb2 Ka4 Nb6+
1K3N1Q/5p2/B2P1Bnb/1q3Nrq/1R1p1r2/k3qb1B/2R1P1nQ/4NQBQ w - - 0 1 illegal: No proof kernel
1B5r/R3PbBN/1R2RQ2/QPBkq3/3r2qR/1nnB1pQN/2n4p/5Kb1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 g4 c5 b6 h5 d6+ Ke6 d7 a4 g6 c4 g5 h4 b7 f4 g7 a3 g6 c3 b5 f3 d5+ Ke7 e6 Kd6 e5+ Kc5 e7 c2 e8R h3 e6 a2 d6 Qb6 d8Q Ra7 d7 Ra8 Qf6 Nh6 g8R Na6 d8B Bd6 b8B Bh2 g7 Bf4 Ba3+ Nb4 Nd2 c1Q Bd3 Ng4 Ne4+ Kd5 Ng5 Be3 Nh7 Ra4 Kf1 Qd6 Qe1 Nc2 Bc5 Rd4 Be7 Bb7 Bf8 Qe5 e7 Qb2 Qa5 Nf2 Rc8 Nd1 Rc6 Qa3 Rb6 Qb4 Rh2 Bc8 Re2 h2 Nh3 Bf2 Re4 Bg1 Rh4 Nc3 Re1 Qh5 Ree6 a1N N7g5 Rh6 Nh7 Nb3 Rh8 Qf5 g8Q Qe5 Qg3 Bd7 Bg7 Be8 Rg8 Bf7 Rc8 Qc4 Rc7 Qa4 Ra7 Qb4 Nf8 Rh8 Nh7 Qc4 Bb4 Qc8 Bc5 Qg8 Bh6 Qg6 Bg7 Qg4
1NRr2n1/1qQP3q/1Q5p/1RNR1r2/2bb1Qn1/Q6N/2RPk1pK/B4r1B w - - 0 1 illegal: No proof kernel
r3Q3/2PN2R1/Q2rRnbB/3pN2P/2R3p1/R1QK2qB/1b2n2b/N1N2qk1 w - - 0 1 illegal: No possible last move
1qNB3R/2P1nR1r/kb2b2r/2p3K1/1Pnn2QB/1Q3BRN/p1Rq2Q1/5Q2 w - - 0 1 illegal: No proof kernel
6b1/N1P1p1B1/2BR1r2/1N3nB1/k1q2qNR/1r1QR3/KbpPnrQ1/1B5R w - - 0 1 illegal: No proof kernel
8/Bp1kB3/n4b1p/RR5N/RP4rR/1qNB2NB/q2PQr2/2bQ1nKq w - - 0 1 illegal: No proof kernel
3nQ1r1/pk2P3/1bp1P3/1N2NN2/B2RB1Q1/1bR2n1r/2B2BN1/Kqn2R1q w - - 0 1 illegal: No possible last move
3NR2n/RQnQ3N/2N2BbR/b1BB4/r4r2/2Pk1pPN/4qp1K/b2bR3 w - - 0 1 illegal: Other
1b2b1nk/1N3q1b/R4r1B/2N1N3/1B4B1/bP1nP2Q/rpp1QQK1/2RQ2B1 w - - 0 1 illegal: No proof kernel
2QB1N2/r2Rq1r1/2rRK2k/N1r5/pP1b2Rn/1pQ2B1B/1P2Q3/3nBbR1 w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 b5 c4 b4 cxd5 b3 a3 Qd6 Bb5+ Kf7 Bf1 Qb4 axb4 Ke8 Ke2 Kf7 Ke3 Kg7 Kf4 a5 Ke5 h5 g4 c5 f4 h4 d4 c4 f6+ Kh7 d6 h3 d5 a4 d7 h2 d8B e6 g6+ Kh6 g7 c3 f7 c2 f5+ Kh7 d6 Ne7 g8R Na6 f6 Bd7 g5 Bc8 d7 Nc7 Ne2 Nb5 Rg1 h1R Bh3 Nd5 Na3 Ra5 Nd4 Bg7 f8Q Ndc3 Qc5 Nd6 Qe2 Ba6 Bd2 c1Q Nc4 Nf5 Be1 Nd1 g6+ Kh6 Rb1 Rb5 Na5 Nh4 Kd6 e5 f7 e4 f8Q e3 Ne6 Rb7 Qc3 Ra7 Qf5 Bf6 g7 Bd4 Nf8 Rh7 Ke6 Rh2 Qfc2 Rf2 Qc8 Rf5 Q2c3 Rc5 Rg4 Bb5 Rh8 Bd3 g8B Qd2 Bf7 Bb5 Rhg8 Rg7 Bh5 Qc1 Rg1 Ba6 Bf3 Qd2 Qf2 Bf1 Ra1 e2 Qg2 Rh7 Rg4 Rg7 Rc1 Qg5 Rc2 Be3 Rd2 Rc6+ Rd6 Bd4 Be7 Rc5 d8R Rc6 Rd7 Rc5 Bd2 e1R+ Qe2 Rc6 Bd8 Rc5 Qe5 Re2 Be1 Rc2 Qe2 Rc6 Qcd2 R2c5 Qc3 Qe7+
Rq3QQr/B2B1Bn1/1r2N2Q/K1P4N/1R1n1bN1/6n1/2p2Pp1/kB1nQb2 w - - 0 1 illegal: No proof kernel
kN6/3K3b/n2bB2P/1QBpQR1p/1nN2NR1/N6R/1Pqn3B/2rBrn2 w - - 0 1 illegal: No proof kernel
NR4Bn/1Bn1b2Q/2R1PrNR/pR2r3/rB1rq2Q/1BK3Pb/3p2Q1/k7 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 e4 Ke6 b4 h5 c4 f5 b6 d5 g3 a5 b5 h4 b7 h3 b6 d4 g6 f4 g7 f3 c6 d3 c5 h2 c7 f2 c6 Qg5+ Kc3 d2 Ne2 Bd6 Ba3 Qg4 Bb4 Qf5 Qc2 Ra6 Na3 Qh7 Nf4+ Kf7 e6+ Kf6 e5+ Kg5 e7 Be6 c8B Nd7 b8R Nf8 e8Q Ng6 b7 Bh3 e6 Kf6 c7 Ke5 Qe7 Nf6 g8B Ne8 Bc4 f1R Qh4 Be7 Rb1 Rd6 Nb5 Rd4 Bb3 Re1 Rb2 Ra1 Qb1 Ra4 Qg1 Ke4 Qg2+ Ke5 Bf7 Rf8 Bg8 Nh8 Ng6+ Kf5 Na3 Rf6 Nc4 Rd6 Nb6 Rd4 Ne5 Qg6 Na8 Qg4 Ng6 Qe4 Rc1 h1R Qh7 Rh2 Rh1 Bg4 Rc2 Rh5 Rcc1 Rg5 Rh6 Rh5 Kb2 Bh3 Rc6 Rg5 Kc3 Rh5 Bd7 Rg5 c8Q Nc7 Qe8 Rh5 Bc8 Rg5 Nf4+ Ke5 Qh5 Rgf5 Qh4 Rd6 Kb2 Kd4 Ng6 Re5 Ba2 Ke3 Kc3 Rd7 Bb3 Rd4 Qh1 Ke2 Qg2+ Ke1 Bd5 Kd1 Bb3+ Kc1 Nb6 Kb1 Ra8 Qf4 Ra7 Ra1 b8R Qe4 Rab7 Na6 Na8 Ra4 Rb5 Ka1 Bb7 Nc7
8/2NR1Qb1/B2p2b1/1b3rN1/NPn1nPQ1/1Q1R1bqp/r2RKN2/k1B3Q1 w - - 0 1 illegal: No proof kernel
NB6/2R5/BN1pPr1K/nnR1bR2/Q1N1N3/1pB3Pk/1q2r3/Q1r2rRb w - - 0 1 illegal: No proof kernel
1B2R2B/rR1Nn3/2P1n2p/1Nq5/1p1Pr3/1K1Q2b1/1NrRbB1k/rQR2B2 w - - 0 1 illegal: No proof kernel
4n1R1/bRBNkn1r/PrB2R2/1Kn3Q1/3NnQ1P/2p3q1/RNb3Np/5B2 w - - 0 1 illegal: No possible last move
R2bQ3/1Q2Bbk1/pn1n2Pr/1P2q3/RNB1nN2/3r2pR/2Nn3B/2B1R2K w - - 0 1 illegal: No proof kernel
4Br2/Q5pQ/5N2/3BnR1R/1nR1rPnB/b2p1qNB/5P1Q/K3kbnR w - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 h5 gxh5 f5 a4 f4 axb5 f3 exf3 Nf6 f4 Ng8 Kd2 Kf7 Kc3 Kf6 b4 Kf5 Kb2 Ke4 c4 d5 h4 e5 h6 a5 h7 a4 h5 d4 c6 d3 c5 Kd4 b6 e4 b5 e3 h6 e2 b7 e1N c7 Nd7 b8Q Qh4 b6 Kc4 c6 Kb4 b7 Kc4 Qa7 Ne7 b8R Qh2 Bh3 Ng2 Nc3 Ne5 Ne4 Bd7 c8B N5g6 c7 Ng8 Nf6 Bc6 Rb5 Ne5 Bb7 Qg3 c8B Ne1 Bcd7 Bg2 Qh5 N1f3 Ne2 Bf1 Be8 a3+ Kb1 Rb8 Bb2 Ng1 Bd4 Qe3 Ng3 Qf3 Bb6 Kc3 Bd5 Kd2 Bd8 a2+ Kb2 Qd1 Rc1 a1N Rc4 Nc2 Qf5 Nb4 Rbc5 Qe2 Ka1 Rc8 Qe4 Qe3 Qg2 Ke1 Qh2 Qf3 Ra5 Ne7 Rac5 Rg8 h8R Nf5 h7 Ne3 Ra5 Be7 Rb5 Rf8 Ra5 Rf7 Rf8 Bd6 h8Q Re7 Qh7 N3g4 Ng8 Ng6 Bef7 Nc6 Bde6 Nb4 Rh5 Na6 Bd5 Re4 Bh4 N6e5 Bg6 Bb4 Rff5 Rf8 Nf6 Ba3 Be8 Nb4
4B2Q/3BPNBR/b3prR1/5n1r/qrP2b1k/4n2N/1K1R1pQ1/r3RQB1 w - - 0 1 illegal: No possible last move
1kqQR2B/4pnN1/2K3p1/r2nrQ2/3PB2Q/BN1nQ1B1/R3P2N/b5nb w - - 0 1 legal: proof: g4 b5 h4 f5 gxf5 d5 c4 b4 cxd5 g6 h5 b3 h6 Nf6 axb3 Qd6 b4 Qe5 b5 Qc3 Rh4 Ng8 Rh1 Qg7 hxg7 Bd7 Nc3 Be6 Nb1 Bc8 b4 Kd8 f4 h5 Kf2 a5 Ke3 c5 Ke4 Kc7 d4 h4 d6+ Kb7 Kd5 c4 f6 h3 f7 c3 b6 a4 d7 a3 d8Q a2 b5 c2 f5 h2 f6 Rh4 Qd3 Rg4 Qe3 Ra5 Nf3 Ra7 Nbd2 Na6 Bg2 Rg3 Ba3 c1Q Nb3 Nh6 g8Q Kb8 b7 Bg7 f8N Nf7 Ne6 Bh6 Qh7 Qc7 Rhb1 h1N Ng7 Nf2 Nh2 Nh3 Be4 Ng1 Rb2 Bg5 Qh4 Qc1 Rc2 Nc7+ Kc6 Ra5 Rb1 a1N Rb2 Nd6 Ra2 Nf7 Rc4 Nc2 Ra4 Nh8 f7 Ne1+ Rc4 Rg2 f8Q Nd3 Qf5 Nf7 Rc3 Bh6 Rc5 Rg5 Rc4 Ka7 b8B+ Ka8 b6 Qc2 Qfg4 Rge5 Qf5 Bf4 Rc3 Bg3 Rc4 Be1 Rc5 Bc3 Rc4 Na6 Bbd6 Nc7 b7+ Kb8 Rc5 Rd5 Bg3 Ba1 Be5 Ka7 Bf6 Re5 b8B+ Ka8 Ne8 Qc1 Bh8 Qc4 Ng7 Bb7+ Kb6 Qe6+ Rc6 Qc8 Rf6 Nh6 Rf8 Nf7 Re8 Na6 Bbd6 Nc7 Bdb4 Kb8 Be1 Bc6 Bg3 Ne1 Bc2 Bh1 Be4 Nd3 Kc6 Nd5+
r1Rq3N/1k1p3r/r1NP3B/P1b2p2/Q7/Bbr5/2QKRn1N/BB2nRR1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Nf6 bxa5 Ne4 c4 Nf6 cxb5 Ng8 h4 g5 a4 c5 d4 f5 e4 g4 e6 g3 e5 g2 d5 c4 h6 c3 b6 c2 e7 Qc7 h7 Qd6 h5 Qb4+ Nc3 Qf4 h6 Na6 b7 Qd4 b8B Nc7 a6 Qd3 a7 Nf6 Na2 Qb3 Nb4 Ng8 Nf3 g1R Kd2 Bb7 Nc6 Qa2 Ba3 c1R+ Qc2 Rg3 Nh2 Bg7 Rg1 Bf8 Bd3 Rg6 a5 Ne6 Rb1 Kf7 e8R Nd4 Rc8 Bc5 e6+ Kf6 e7 Nf3+ Ke2 Qb3 e8R Qb6 Bf4 Ne1 Kd2 Qd8 Re2 Kf7 Qa4 Rc3 Rc1 Re6 Bb1 Ke8 Be3 Nf6 d6 Re7 Rd1 Ng4 Rf1 Rg8 h8B Nf2 h7 Ba6 Bh6 Bc4 Be5 Bb3 h8N Rh7 Rg1 Rg4 Rc1 Rb4 Rd1 Rb6 Rf1 Rab8 a8Q Ra6 Qb7 Rba8 Rc1 Bc4 Qb2 Be6 Qbc2 Bb3 Ng6 Kf7 Nh8+ Ke6 Rg1 Kd5 Rd1 Rg3 Ba1 Rc3 Rf1 R8a7 Ne5 Ned3 Rg1 Ra8 Rdf1 Ne1 Nc6 Qb6 Na7 Qc7 Nb5 Kc6 Na7+ Kb7 Nc6 Qd8
3bkb1Q/2pNnb1N/6rb/1PR5/RBRr4/1qQBPnRK/pN2N3/5Q2 w - - 0 1 illegal: No proof kernel
2q1K1n1/1p1P1p2/2RQ1b2/kn2bBNN/4BP1R/4b1rQ/brR3B1/B1Q4Q w - - 0 1 legal: proof: d4 a5 g4 d5 b4 h5 gxh5 e5 dxe5 d4 bxa5 d3 cxd3 Rh6 d4 Rh7 d5 Rh8 Kd2 Kd7 Kc3 g5 Kd4 c6 a4 Kc7 h4 g4 e4 g3 f4 g2 h6 Bb4 a6 Kb6 e6 c5+ Ke5 c4 h5 c3 h7 c2 d6 Nh6 a7 Qe8 Kf6 Qb5 Ke7 Rd8 h8Q Qc4 e5 Rf8 a5+ Ka6 Nd2 Rd8 Ra2 Kb5 a6 Nd7 Ndf3 Bc3 Ng5 Bb4 Rh4 Kb6 Ne2 g1B Bg2 Qc7 Ng3 Qc4 Bb2 c1B Ba1 Nc5 Rc2 Rd7+ Ke8 Qa2 e7 Qb3 e6 Ng8 h6 Ne4 h7 Ba5 Nh5 Rb8 a8Q Bb2 a7 Nd2 Qc1 Qb4 Qf6 Bc5 h8Q Qc4 Qc3 Rc7 Qh3 Nb1 Qd4 Rd7 Qdg1 Bh8 Qgh1 Na3 Kf8 Qa4 e8B Ka6 e7 Qe4 Ne6 Bf6 Rc3 Nb5 Rc4 Rc7 Bc6 Qf5 e8B Bac3 Bed7 Ne7 Bce4 Be3 Rc5 Bce5 Rc3 Rc4 Rc2 Rb4 Rc6+ Bb6 Rc2 Rb3 Rc6 Rg3 Ke8 Ng8 Ng5 Qg4 Rc2 Be3 Be6 Qe2 B6f5 Be6+ Rc8 Qc2 d7 Bd8 Rc4 Rc8 Qb8 Qc3 Rc7 Ba2 a8R+ Kb6 Ra3 Qc6 Rb3 Ka5 Rb2 Qc3 Rc5 Rc6 Rd2 Bdf6 Qd6 Qc2 Rc3 Rc4 Re2 Rb4 Rc8 Qc3 Rc2 Rb2 Rc4 Qb4 R4c3 Qc5 Rc4 Qc7 Rc6 Qc8+
2B5/pR2BNk1/1pP1Q1N1/3r2bP/1r1Nb2B/2RR1Q1K/N2qr3/n2B1rn1 w - - 0 1 illegal: No possible last move, all moves rejected
3b4/n3P3/1pR3N1/2RNBKb1/k2qBQrQ/4Bn1p/2qn1B1P/1bN1N1R1 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 f4 c4 Ra6 cxd5 Rh6 Qc2 Rh5 Qd1 Rf5 gxf5 Bc5 Nf3 Ba3 Ng1 Bf8 Kf2 Kd7 Kf3 c5 Kg4 g5 e4 h6 a4 c4 d4 f3 f6 c3 f7 f2 e6+ Kd6 e5+ Kc7 d6+ Kc6 d7 b6 e7 c2 e8N h5+ Kf5 g4 d5+ Kc5 e6 Kb4 a6 g3 a7 g2 a8Q h4 a5 h3 a6 Kb3 a7 Bh6 f8N Kb4 d6 Na6 Ra5 Bd2 Rc5 Bc3 Qe4+ Kb3 a8R Be5 Qf4 Bd4 Na3 Rh4 Ne2 g1B Nc7 Bb7 Be3 Bd5 Nc1+ Ka4 Qe1 Rg4 Rc8 Ba2 Ng6 Nb8 Bg2 f1N Be4 Bf6 Nd5 Nc6 Qh4 Ne5 R8c6 Nd2 Bf2 Be7 Be3 Bf2 Rg1 Be1 Bf2 Bg5 Be3 Nef3 Bf2 Qc7 d8B Qd7 Bf6 Bb1 Be5 Qg7 d7 Qh8 Na2 c1Q d8B Qc2 Nc1 Qg7 Bdf6 Qd7 Bg7 Bd8 Bh6 Ne7+ Kf6 Nc8+ Kf5 Qg7 e7 Na7 Bg5 Qd1 Nc2 Qh8 Bc7 Qd4 Be5 Qe2 Be3 Bg3 Bf2 Qec4 Ne1 Qcd3 Bh6 Qc2 Qfg5 Bf4 Qf6 Bg3 Bhe3 Bf4 Qf8 Bg5 Qfh6 Bf6 Qf4 Bg5
2b1qqk1/Q1Q1P1r1/KQBq4/B1Rp1b2/1Q5R/r3pN2/Bb2P1B1/2N3Nn w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 c5 dxc5 e4 a4 Nc6 axb5 Ne5 fxe5 Qb6 Bg5 Qf6 Bc1 Qd8 Kd2 g5 Kc3 a5 Kc4 f5 h4 Kf7 b4 g4 h6 g3 h7 a4 b6 f4 Kb5 d6 c4 g2 h5 f3 b7 f2 b8Q a3 h6 a2 e6+ Ke8 c6 e3 c7 Qf6 e7 Kf7 c5 Ra6 c6 Bf5 c8B Be4 c7 Bg6 Qc2 Qe6 Bd2 Qg4 Be6+ Kf6 c8B Bh5 Rh4 Ra8 Bb7 Qf3 Qa7 Qd5+ Ka6 Bg4 b5 Bg7 b6 Bf5 Ba5 Qc6 Qc1 Qe8 Nc3 Kg6 Qb2 Nf6 Qb4 Ng4 Rc1 a1Q Bc6 Qa3 b7 Rg8 h8N+ Kh7 Na2 Bb2 b8Q Rg7 Nf7 Kg8 Q8b6 Qf8 Bc4 d5 Ne5 Qe8 Nef3 Qf8 Nh3 g1Q Bg2 f1B Bb3 Nf2 Rc5 Nh1 Nc1 Qa4 Ba2 Qh2 Nhg1 Qd6 h7+ Kf7 Bb7 Qae8 h8Q Bc8 Qh6 Kg8 Qhf4 Qe6 Qc7 Qd6 Bh3 Bf5 Bc6 Bg2 Ng5 Bf3 Bf1 B3g4 N5f3 Bh3 Bg2 Bc8+ Bb7 Bhf5 Qb5 Rb8 Q6c6 Bce6 Ba8 Bd7 Qc4 Rb5 Q6b6 Rb3 Bc6 Ra3 Qcb4 Bc8+
R3nB2/2q3nr/2QN2kr/B2pRN1N/BK1P1Q1P/Q1r1n2q/4Bp2/5N1b w - - 0 1 legal: proof: b4 h5 f4 e5 fxe5 b5 g4 Be7 gxh5 Na6 a4 Kf8 axb5 Qe8 b6 Qd8 c3 Nb8 b5 Bb4 cxb4 Ke8 h4 d5 e4 a5 d4 f5 Kd2 Kf7 Kc3 c5 b7 g5 b6 f4 b5 g4 h6 g3 e6+ Kg6 e7 a4 e8N f3 h7 a3 e5 g2 e6 f2 e7 c4 Nd6 a2 e8B+ Kf6 Qb3 Bg4 Bh6 Qc7 Qa3 Qd8 Be2 Qc8 Nh3 g1N Nf5 Qc6 Nf4 Qc7 Bf8 Ne7 Kb4 c3 Nd2 c2 Nf1 Nd7 b8Q c1R b7 Ra6 b6 Bf3 Qa8 Nh3 b8Q Ng5 Qc6+ Ne6 b7 Rc3 Rh3 Bg2 Re3 Bh1 Re5 Ra7 Qa8 Ra6 b8B Ra7 Qd6 Ra6 Qac6 Ra7 Re1 a1Q Rd1 Qa2 Ra1 Qc2 Ra2 Qd3 Ra1 Qh3 Ra2 Rg8 h8N Rg6 Nf7 Rh6 Nh5+ Kg6 Ra1 Nf6 Ra2 Qc8 Bc7 Ng7 Ba5 Qc7 Bd7 Qd8 Qb8 Qc7 N7d6 Nfe8 Qc5 Ng8 Ba4 Ngf6 Qc6 Ng4 Qd8 Ne3 Qg5+ Kh7 Qf4 Kg6 Rc2 Rd3 Rc5 Rc3 Rb5 Qd8 Rb8 Re7 Ra8 Qc7 Ra6 Ne6 Ra7 Reh7 Ra8 N6g7
2bk1bRB/N2bRK2/N1r1Q1p1/N7/r1q2pP1/5RBR/2B1P3/qQ1N2qn w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 h4 g6 h5 d3 h6 Na6 cxd3 Nc5 d4 Ne6 d5 Ng7 hxg7 Ba6 Rh4 Bb7 Rh1 Bc8 Kf2 f5 Kf3 h5 Kf4 a5 g4 c5 b4 a4 d4 a3 e6 c4 Ke5 a2 e7 c3 d6 c2 d5 h4 b6 h3 b5 h2 b7 Rh6 b8B Qd7 b6 Ra6 b7 Qd8 d7+ Kf7 e8R Nf6 g8R Ra4 d6 Bg7 Nc3 Bh8 Bg2 Ra6 Nf3 Ra4 Nd2 Ra6 Nb3 Rh4 Bb2 c1Q Be4 Ra7 Bc2 Bg7 Na5 Qg5 Qb1 Qc1 Nd1 Qc7 d8Q Qc4 d7 Rh5 Qb6 Bf8 Rf1 h1B Rf3 Rh8 Bd6 Ne4 b8N Nf2 Na6 Bg2 Qe3 Nh1 Bd4 Qa4 Kd5 Rh7 Bg3 f4 Bh8 Rg7 Re4 Qc4+ Ke5 Ke7 d8N Ke8 Ndc6 Rgc7 Kf6+ Kd7 Qeb3 Ra8 Na7 Kd8 Ree3 Rc6+ Re6 Qe3 Kf7 Qg1 Qe3 Qd4 Re7 Qc4+ Qe6 Bd7 Rc3 Be4 Rf3 Bf5 Qb8+ Bc8 Rb1 a1Q Rbb3 Rc5 Rbc3 Rc7 Qb1 Rc6 Bh4 Bd7 Rh3 Bc8 Bg3 Bd7 Rf3 Bc8 Qd5+ Bfd7 Qe6 Rb8 Be5 Rb4 Bh8 Ra4
5q1R/2N4N/3B2p1/1QR4p/2BQnNP1/1bbQnQ1K/Pr6/2kNnqBb w - - 0 1 legal: proof: e4 d5 c4 f5 exf5 b5 cxd5 a5 b4 g6 bxa5 Bb7 h4 Bc8 h5 Ra6 h6 Rf6 Qh5 Rf7 Qd1 Rg7 hxg7 Ba6 Ne2 Bb7 Ng1 Bc8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb4 f6 c5 d6 e5 f5 c4 d7 e4 d5 e3 f7 e2 d6 e1N a6 h6 a7 c3 a8N c2 f6 Be7 f8N Bb7 f7 Bc8 Be3 c1Q Qf3 Nc6 Nc3 Ka3 Bc4 Kb2 Nh3 b4 Nf4 b3 Bg1 Na5 Nc7 Bf6 Kh3 Bb7 Nh7 Qf8 d8Q Kc2 g4 b2 d7 b1B Nd1 Bc3 Qb8 Nf6 d8Q Ne4 g8Q Bc6 Qg7 h5 Qgd4 Ba4 Qb5 Bb3 Q8d6 Qe7 Qa3 Rb8 f8B Qf6 Bd6 Qf8 Qg7 Kd2 Qd4+ Bd3 Rb1 Rb6 Bd5 Nc4 Bg8 Ne3 Bc4 Bc2 Rb4 Bb3 Ra4 Qa1 Ra8 Rb7 Qaa6 Kc1 Re8 Qf7 Rh8 Qf8 Qaa7 Be2 Qd3 Rb8 Qad4 Bf1+ Kh4 Bg2 Rh2 Bh1 Kh3 Bc2 Qe8 Rb1 Qb5 Bb3 Rb2 Bc2 Rb4 Bb3 Ra4 Rb2 Ra6 Qb1 Rc6 Qc2 Rc5 Qf2 Qg2 Qe2 Qf3 Qf1+
1N1r2n1/bKQr4/8/1q2p3/p1Q2BNN/RP1RP1qq/BQ2nn1R/1R2Nk2 w - - 0 1 legal: proof: h4 d5 a4 b5 axb5 g5 g4 d4 f4 d3 h5 Qd7 fxg5 Qd4 cxd3 Qd8 d4 Bf5 d5 Bg6 hxg6 Qd6 Nf3 Qd7 Ng1 Qd8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kc4 d6 e5 b6 a5 b7 h5 d5 c5 g7 h4 d7 f6 d6 a4 g6 h3 g5 h2 Na3+ Kb4 Kd5 f5 Qd2+ Kb3 Nc2 c4 Rb1 c3 Ne1 f4 Ngf3 c2 Nh4 Qf6 d8Q f3 d7 f2 Qc7 Rh7 d8R Nh6 g8Q Qb6 g7 Ng4 g6 Nd7 b8N Qe3 Qe6 Ba3 g8N Bc5 g7 Qg3 Nf6 Ba7 g8R Rg7 Bg2 f1Q Rh8 Nf2 Ng4 Nf6+ Kc6+ Nd5 Kb7 Rd7 Rg1 h1Q Qd4 Qhh3 Bf4 c1N e3 Qc4 Rh1 Nf6 Bd5 Kb4 Ra1 Kb5 Ra3 Ng8 Rh2 Qc5 Ba2 Ne2 Rh6 Qc4 b3 Kb4 Qb2 Qc5 Qb1 Kc3 Qc4+ Kd2 Qb2+ Kd1 Na6 Rc8 Nb8 Qb5+ Rb6 Rd2 Rd3 Rd8 Rh1 Ng1 Rh2 Ke2 Rh1 Kf1 Rh2 Qa5 Rbd6 Ne2 R6d5 Rc2 Rd1 Rd2 Rd3 Qc5 Rb1 Qa5 Rc3 R2d7 Rd3 Qb5+
B2N1bNK/1Q1R1PQQ/2q2n2/1Bkp4/B1p1RnQ1/1bnP1b2/5r2/1q2B1R1 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 b4 hxg5 b3 axb3 Na6 b4 Nb8 b5 Bg7 Rh5 Bh6 Rh1 Bf8 b4 a5 c5 a4 c6 Na6 b6 Rb8 b5 Rb7 cxb7 Nb8 Ke2 c5 Kd3 e5 Ke4 Ke7 g4 Kd6 f4 h5 g6 a3 g5 a2 f6 h4 Kf5 h3 f7 e4 g7 e3 Kg6 e2 f5 e1N f6 h2 Ne2 Rh5 Nd4 Nc2 Nc6 Nd4 Nc3 Ne2 Rg1 h1B Nd5 Qc7 Nd8 Nh6 Kh7 Be7 f8Q Nd4 g8B Qc6 g6 Re5 g7 Rg5 Kh8 Re5 Qg4 Na6 b8Q+ Nc7 b7 Nb3 b6 Bg2 Bb5 Re1 d3 Re2 Qa7 Bh3 b8Q Ba6 b7 Nd4 Bd2 Ne6 Rae1 Rf2 Re4 a1Q Be1 Qc1 Qba8 Nf4 b8R Bg2 Rb7 Qb2 Be6 c4 g8B Bf3 Qfg7 Bf8 Ne7 Ncd5 Bf5 Nc3 Bd5 Qc2 Ng8 Qb1 Rc7 Bd1 Q8b7 Bb3 Ba4 Bb5 Bg6 Ba6 Be8 Bb5 Qh7 Ba6 f7 Bb5 Qgg7 Ng4 Qad4 Nf6 Qg4 Ba6 Qe5+ Kc5 Qeg5 d6 Qgg7 Bb5 Rd7 Qc7 Re3 Bc6 Bh1 Bg2 Re4 Bf3 Rde7 Nce2 Beb5 Qc6 Rd7 Nc3 Re3 Bfd1 Qc8 Qc7 Ba8 d5 Re4 Bf3 Qb7 Qc6
Qb1q4/pr2R2P/BrQ3QN/Pb2b1R1/p1n4N/B1kBB3/5rK1/R1q4R w - - 0 1 illegal: Other
4RR1K/5QQ1/q2RBN1p/1N1N3Q/b3b3/2B1q1rP/P1rn1pQR/2brk3 w - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 f4 c4 Nc6 cxd5 Nd4 Qa4+ Kf7 Qd1 Nf5 gxf5 Ke8 Kf2 Ke7 Kf3 c5 Kg4 b5 Kg5 f3 e4 c4 d4 b4 d6+ Kd7+ f6 Kc6 a6 Kb5 e6 g6 a7 f2 e5 b3 d7 Kb4 h3 c3 e7 c2 e8Q b2 e6 Qe7 d8R Qd7 f7 Ba6 d5 Bd3 d6 Ne7 Kf6 h6 Rh2 g5 Qh5 g4 Nc3 b1B Nf3 g3 Nd4 g2 Bb2 c1Q Ndb5 Qb7 d7 Nc8 e7 Bdc2 Bc4 g1R Be6 Ba4 Nd5+ Kc4 Be5 Kd3 Bc3 Rd1 Kg6 Rg8+ Kh7 Rg3 Kh8 Rb8 a8Q Nd6 Rc8 Qb6 d8R Nc4 Rd6 Qce3 Qd7 Qc6 e8N Nd2 Nef6 Qa6 Qc7 Be7 Rf8 Rc8 Qc4+ Kc2 Qcg4 Kd3 Qg7 Bbc2 Rb1 Bd8 Rb4 Rc7 Rg4 Ke2 Rf4+ Ke1 Re8 Bg6 f8Q Be4 Qff7 Rc6 Bb4 Rc2 Bc3 Bc7 Qb7 Rf3 Qg2 Rg3 Qg7 Bb6 Qbf7 Bc5 Rf5 Ba3 Qfg8 Bb4 Nd7 Rb1 Rff8 Rd1 Q8f7 Ba3 N7f6 Bc1
1B1k1bRK/RB2Rq1p/3b2pB/N3N3/1N2R1rq/2bQ2PP/1n2r2N/5Qr1 w - - 1 2 legal: proof: d4 b5 a4 d5 axb5 Kd7 c4 Nc6 cxd5 Nh6 e4 Nb8 d6 Ke6 d7 Ng8 Be2 Kd6 Bd3 Ke6 Bf1 Kd6 f4 Ke6 d5+ Kf6 Bc4 e5 Be2 Bb7 Bf1 Kg6 d6 Bd5 exd5 e4 Ra3 Nc6 Ra1 Ne5 fxe5 Rc8 Qf3 Rb8 Qd1 Ra8 Kd2 c5 Ke3 a5 Kf4 f5 b4 Kf7 g3 e3 e6+ Kf6 h3 g6 b6 a4 b5 a3 b7 c4 b8N e2 e7 e1Q e8R a2 b6 c3 b7 c2 Nf3 Bg7 Ba6 Bf8 Nc3 Qc8 d8Q+ Kf7 Kg5 f4 d7 Qd2 d6 Qd4 Re4 Nh6 Rhe1 Ng4 Nd5 Qcc4 Nb4 Nf2 Nh2 f3 N8c6 Nd3 b8B f2 Bb7 f1R Na5 Rg1 R1e3 Nb2 Qf1+ Kg7 Bd2 c1B Re7+ Kg8 R3e4 Qdd5+ Kf6 Qf7+ Ke5 Ra6 Bh6 Ra7 Qc8 Be3 d8N Bc5 Qcf5 Ra6 d7 Ra8 Ree1 Qh4 Q5d3 Ra7 Re4 Bd6+ Kd4 Ra6 Ndc6 Rb6 d8R Ra6 Rc1 a1B Ne5 Rb6 Rcc7 Rb5 Neg4 Rg5 Ne5 Rg4 Bc8 Qf5 Ra7 Qff6 Bb7 Qf7 Bc1 Kg7 Bf4 Kf6 Rde8 Bh6 Rg8 Bf8 Bh6+ Rf4 Nef3 Kf5 Rd7 Kf6 Rg7 Rg4 Rf4+ Ke6 Rc7 Bfe7 Rd7 Rc8 Rg8 Rc2 Re4+ Kf6 Rc7 Re2 Rd7 Bf8 Rc7 Qe7 Kd5 Kf7 Ne5+ Ke8 Rd7 Qg7 Ke6 Na4 Rf7 Kd8 Re7 Qh8 Kf7 Bc3 Nec4 Qd4 Ne5 Qc5 Rg7 Qd4 Kg8 Qc4+ Kh8 Qf7 Rg8 Nb2
B1r1b1QN/4q1N1/N2nQ1n1/1pNB2p1/n3K1BR/6RP/qB1bQ1P1/3q2k1 w - - 0 1 illegal: No proof kernel
1q1r4/Bn1RnNNb/1R1rB3/p1R1q1KP/R2Q4/1r1q4/P2k1p1B/N4Q1N w - - 0 1 legal: proof: g4 h5 gxh5 e5 e4 c5 b4 g6 bxc5 Be7 d4 Nf6 f4 Ng8 f5 Qb6 f6 Kd8 fxe7+ Kc7 dxe5 Nh6 e6 Ng8 e5 Kc6 Bh6 Qc7 Bc1 Qd8 Kd2 Kd5 Ke3+ Kc6 Kf4 f5 e8Q a5 h4 b5 c4 b4 h6 b3 h7 b2 h5 Ne7 Be3 Rf8 h8B Ng8 e7 Ra7 e6 Rc7 Bh3 Rb7 Qd4 Rb6 Nd2 b1Q Kg5 f4 Be5 f3 Nb3 f2 Bh2 Rf7 Ne2 Qd3 Rhd1 Rf8 Ng3 Na6 Nh1 Rb4 Qf7 d5 Rab1 Qb6 e8N Ne7 Qf5 Qb8 Na1 Rb3 Nd6 Rd8 Nf7 Bb7 Qfg4 Bc8 Qg1 Qe5+ Kh6 g5 Qf1 g4 Rd2 Qb8 Kg5 g3 Rbb2 g2 Bg4 Ng8 e7 g1Q e8N Qgg3 Ng7 Bf5 Rd1 Qge5 Rbb1 Kc7 c6 Ne7 c5 Bh7+ Bf5 Rc3 Rb6 Rb3 Rc1 Rd6 Rc4 Rd8 Ra4 Rd6 Qe4 d4 Qd5 Qc2 Qdc4 d3 Qe4 d2 Qd4 Qe6 Bg4 d1R Bf5 Qd3 Bg4 Kc8 c7 Kd7 c8R Rd2 Rf8 Kc7 c6 Nc5 Rd8 Nb7 Bf5 Qee4 Be6 Rd1 Rb5 Rd2 Rc5 Kb6 c7 Rd1 Rc6+ Kb5 c8R Rd2 Rd7 Rd1 Qe5+ Qd5 Ba7 Rd2 Ra3 Kb4 Rb6+ Q5b5 Rc5 Rd1 Rd5 Rd2 Qe4+ Kc3 Ra4 Rd1 Rf5 Qe5 Qc4+ Kd2 Qd4 Rc1 Ne8 Rc8 Ng7 Qe1 Rfb5 Rd8 Rc5 Qe5+
1nB2N1B/8/1qn3pQ/1P1K2rQ/3Q1NRR/2rqRpb1/B3r1P1/2kn2BR w - - 0 1 illegal: No extended proof kernel
2K5/n3q2N/1pQRp2q/bBnN1q2/5B1N/n1rQ2QB/2PRP3/Bb4Nk w - - 0 1 illegal: No possible last move
B1kB2QR/pRn1Q3/3q1qbK/1b5Q/1Np1rRR1/PbP4B/2Q4q/6nN w - - 1 2 legal: proof: d4 c5 f4 b5 h4 g5 fxg5 e5 dxe5 c4 b4 Ke7 g4 Ba6 g6 Bc8 g5 Bh6 g7 Na6 g6 Bg5 hxg5 Ke8 Kf2 Rb8 Ke1 Rb7 Nh3 Rc7 Ng1 Rc5 bxc5 Qb6 Bd2 Qf6 Bc1 Qd8 Kd2 h5 Ke3 f5 Kf4 d5 e4 Kd7 c3 d4 c6+ Kc7 e6 d3 e5 d2 e7 b4 e8Q b3 e6 h4 e7 h3 Ne2 h2 Ng3 b2 Qc2 d1Q Bh3 Q1d5 Rf1 h1Q Na3 Nb8 Rb1 Qg1 Nh1 Nh6 g8B Q5d7 g7 Ba6 g6 Kc8 c7 Ng4 Kg5 f4 Bd5 f3 g8R f2 g7 Rh4 Qh5 Qd6 Ba8 Bb5 Be3 Qgh2 Bb6 Qf8 Ba5 Na6 e8Q+ Qd8+ Qe7 Qdd6 Rh8 Qfd8 Rg1 f1B g8Q Be2 Rgf1 Bd3 Rf4 Bg6 Rg1 b1B Rg3 Bf5 Rg2 Nf2 Rgg4 Bg6 Kh6 Qd3 Qb2 Qd6 Nc2 Qf6 a3 Ba2 Nb4 Bb3 Qc2 Qd6 Bf1 Nh3 Bb6 Ng1 Bh3 Bd7 Qee8 Ne2 Rf7 Ba2 Rg1 Re4 Rg4 Bb5 Rff4 Ng1 Qef8 Kd7 c8R Q8f6 Bd8 Nc7 Rb8 Bb3 Rb7 Kc8 Qe8 Bd7 Qe7 Bb5
1k2BR1B/1NqQ3N/2r1rnp1/BnNR2Pn/B1b4n/3QKpN1/1P3n2/Q7 w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 h4 g6 h5 d3 h6 Bg7 hxg7 Ba6 cxd3 Nd7 d4 Bc8 d5 Nb8 Kf2 Kd7 g4 c5 d4 Kc7 e4 a5 d6+ Kb7 e6 h5 d5 f5 e5 c4 b6 a4 g5 c3 e7 a3 e8B c2 e6 h4 d7 a2 d6 h3 e7 f4 Nc3 f3 Ne4 h2 Bd2 c1N Nc5+ Kc6 b7 Nb3 Ba5 Qb6 d8Q+ Bd7 Ke3 Ra6 Ne2 Nd4 Ng3 Nf6 g8N Nh5 Nf6 Qc7 Nh7 Nb5 Bc4 Rf8 Bb3 Rf6 Ba4 Rb6 Rc1 a1N Rc3 Nb3 Qa1 Nd4 Rd1 h1N Ra3 Ne6 Rd5 Neg7 Rc3 Nf2 Rc4 Na6 b8B Nb4 Rf4 Ra6 Nd3 Kb7 Nc5+ Ka8 Rff5 Be6 d7 Rc6 Rf4 Qc8 Be5 Bg8 Rf5 Rfe6 Rf8 Ka7 Qc7+ Ka8 Qd6 Qc7 d8N Kb8 Ndb7 Bf7 Kd2 Nf5 Bh8 Nh4 Qd7 Ne4+ Ke3 Nd3 Qd6 Ndf2 Qd7 Red6 Qf5 Nef6 Qd3 Bg8 Bd7+ Ka7 e8Q Bf7 Qe7 Be6 Be8 Kb8 Qd7 Bf7 Rf5 Bc4 Rd5 Re6+
1NBNqR1B/PQ2p2r/R3P1Kp/b4Q2/k6B/1b5n/2bNNR1b/nB5b w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h4 a3 bxa3 Nh6 a4 Ng8 a5 Bg7 Na3 Bh6 Nb1 Bf8 g4 b5 g6 Bd7 g5 Qc8 g7 Ra6 h5 Rg6 hxg6 Qd8 Nh3 Bf5 Ng1 Bc8 Kf2 Kd7 Ke3 f5 Kf4 c5 e4 h6 a4 c4 d4 c3 d6 Kc6 d5+ Kc5 e5 Kb4 e6 c2 a6 Qb6 a5 Qc7 a7 Qc6 a8Q Qc7 a6 Qa5 a7 Qc7 Qg4 Qa5 d7 Ba6 d8N Nd7 d6 Qc7 Qb7 Qb8 Nd2 Nc5 Rh2 Nb3 Bb2 c1B Ne2 Rh7 Rf2 Nf6 g8N Ne4 Nf6 Bg7 Nd7 Bc3 g7 Qa8 g6 Ng5 Ra3 Na1 g8B Qb8 g7 Nh3+ Ke3+ f4+ Ke4 f3 Qf5 Qc8 Nb8 Qd7 Bf7 Qe8 g8R Be5 d7 Bh2 Bf6 Bb2 Bg6 Bc3 Qbd5 Bc8 Rf8 Bb7 Ra6 Ba8 Bh8 Bb7 Rd6 Ka4 Ra6+ Ba5 Qc6 Ba8 Qb7 b4 Bg2 b3 Bf1 b2 Bg2 Bg1 Ke5 Ng5 Kf4 b1B Kg4 Rf7 Kh5 Bc2 Bh7 Nh3 Kg6 Nb3 Ndc6 Bh2 d8B Na1 Bc7 Bb3 Bg3 Bc2 Nd8 Bb3 Rf1 f2 Bh4 Bc2 Rb1 f1B Rb2 Bb3 Be4 Bg2 Bd3 Be4 Bb5+ Ka3 Bd7 Bec2 Bc8 Ka4 Rb1 Be5 Rf1 Bc7 Rf2 Bh2 Qc7 Bae4 Qb7 Bh1 Qfe4+ Ka3 Kh5 Bd1 Qed5 Ka4 Bb1 Bdc2 Qf5 Qc6 Kg6 Rh7 Qb6 Qb5 Qb7 Qe8+
1R3B2/R1N2nB1/5Q1r/1BK2Nr1/B2P1Rr1/pp6/Pb1R3Q/q1krQbr1 w - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 c5 exd5 c4 h4 c3 bxc3 Bf5 c4 Be6 c5 Bc8 g4 Bd7 h5 Qa5 g6 Bc8 g5 Qd8 g7 Nc6 Rh2 Ne5 Rh1 Ng6 hxg6 Bg4 Rh3 Bd7 Rh1 Bc8 Kf2 Kd7 Ke3 a5 Kd4 b5 c4 h5 d6 Ke6 d7 Kf5 c6 Kf4 c5 f5 c7 a4 c6 b4 Na3 e6 Bb2 b3 Nb5 h4 Ne2+ Kf3 Qe1 f4 Ng3 a3 Rh2 h3 Nf5 Ba6 c8B Rb8 c7 Qe8 d8B Nh6 g8Q Nf7 g7 Rh5 g6 Rg5 Be7 e5+ Kc5 e4 Qh8 e3 g8R e2 Qf6 Bg7 Bf8 Qe4 Rg2 h2 Bd7 h1R c8R Qb1 Nc7 Rb4 Ra8 Rh6 Ra7 Ke4 Rg4 Kd3 Ba4 f3 Rf4 Kc2 d3 Bh8 g7 f2 Bc3 Qb2 Rd1 Qc1 Rd2+ Kb1 Bg2 f1R Bgc6 Rfg1 Bcb5 Re4 Qh4 e1R Qh2 Qb2 Bd4 Kc1 Be5 Qa1 d4 Rd1 Rf1 Reh4 Rf4 Rhg4 Qg6 Bb7 Rdf2 R4g3 R4f3 Kb1 Be7 Rgh5 Rb8 Bc6 g8Q Bf6 Rd3 Bg5 Qe8 Rg4 Bf8 Bg2 Beg7 Bc1 Qf6 Bb2 Rdd2 Rhg5 Qe1 Bf1 Rf4 Kc1
nrB4k/2B1NRr1/1NR3Q1/P3N2B/1rr1np2/pr1KQ1Nb/B3RP2/4q3 w - - 0 1 illegal: No proof kernel
br6/2BBk3/1r3pP1/2b1B3/1q1N3p/QNb1Qb1N/RB3P1b/3RRnRK w - - 0 1 illegal: No possible last move
2Q5/1NbpB1bN/bq2PQBb/6Q1/2p1rR2/b2P1Q1B/2nRNB2/nk1K4 w - - 0 1 illegal: No proof kernel
2R1r2r/b1N2p2/1n2rb2/4kqN1/1R2pNQ1/5PQB/3BPNBb/1bQ2QK1 w - - 1 2 illegal: No possible last move
1k1B4/6R1/b2pQQb1/1rPNB1QN/3PnR2/1BbNbQqp/1Nn4n/2K5 w - - 0 1 legal: proof: e4 c5 a4 g5 h4 f5 hxg5 b5 exf5 a5 b4 Ra7 bxc5 b4 Nh3 Rb7 Ng1 Rb5 axb5 Bg7 Ne2 Bh6 Ng1 Bf8 g4 h5 d4 e5 Kd2 b3 f4 a4 c4 h4 b6 b2 b7 e4 c6 a3 g6 a2 g7 h3 f6 Rh4 f7+ Ke7 f5 Kd6 c7 Rh6 f6 Kc6 g5 Rh7 c5 Ne7 g8N Rg7 g6 Nd5 Qg4 Nf4 Na3 b1B Ne2 Nd5 Qe6+ Bd6 f8Q Nc3 f7 Bd3 Nf4 Rh7 g7 Qe8 Nc4 Ne2 Nf6 Nc3 g8Q Na6 b8B Kb7 Nb2 Nb4 Rg1 Nc2 Qg5 Ba6 Rb1 a1B Bc4 Be5 Bb3 d6 Nfd3 Qd8 Qfh6 Qg8 f8Q Bh2 Rf1 Bg1 Nh5 Rd7 Qgf6 Qg3 Rf4 Re7 Qfg5 Rf7 Qef6 Bf5 c8N Bg6 Bc7 Re7 Ba5 Kb8 Bd8 Rb7 Ne7 Rb5 Qe6 Ne2 Kd1 e3 Nd5 Bf2 Bd2 Nc3+ Kc1 e2 Qgf6 e1N Qhg5 Nf3 Q8f7 Qh2 Be1 Bg1 Bg3 Ne4 Rg4 Ne5 Qf3 Ne1 Qge7 Ng5 Na4 Bf5 Kd1 Bc3 Nab2 Nc2 Re4 Nd7 Be5 Nf6 Rf4 Be3 Qg7 Ng4 Qe7f6 Ne4 Ra1 Bb7 Ra7 Ba6 Qgg5 Bg6 Rh7 Qg3 Rg7 Bg1 Kc1 Nh2 Qf8 Bf2 Qff6 Be3+
R7/B1R2b1b/2pQKbQ1/1pb1P1N1/kn4Rr/2P1r1B1/B2Q1r2/4NQqR w - - 0 1 legal: proof: g4 a5 d4 g5 b4 f5 bxa5 e5 dxe5 Nc6 gxf5 g4 h4 Nd4 Be3 Ne6 Bc1 Ng5 hxg5 Kf7 Nf3 Ke7 Ng1 Ke8 Kd2 b5 Ke3 h5 Ke4 c6 a4 d6 f4 Kd7 a6 h4 f6 d5+ Kf5 g3 e4 d4 e6+ Kd6 e5+ Kc5 a7 Kb4 g6 h3 a5 d3 c3+ Kc5 a6 g2 g7 d2 f7 h2 Nf3 g1B Bc4 Qa5 Ba2 Rh6 Ng5 Bd4 Na3 Rg6 Qf1 d1B Nc2 Be2 Ne1 Be7 f8Q Nf6 g8R Rb8 a8Q Bg1 a7 Bd7 Qd8 Rc8 Qb8 Qb6 a8R Be8 Qd2 Nd5 Rg7 Qa7 Qd6+ Kb6 Rf7 Bf6 e7 Ka5 Ke6 Bc4 f5 Ka4 Rb1 Bc5 Rb4+ Ka5 Rh7 Bd3 Rg4 Nb4 Rg7 Ka4 Rh7 Bh8+ f6 Rh6 Rg7 Rh3 f7 Re3 f8B Bh7 Rf7 Bf6 Rg7 Bh5 e8Q Rc7 Qg6 Rf7 Be7 Rf8 Bd8 Rf7 Bb6 Rf8 Rhg1 h1R Rc7 Rhh3 Rh1 Rh4 Qb1 Be8 Qg6 Qa6 Ba7 Qb6 Rf4 Be7 Rg4 Rf2 Qd7 Bf6 Q2d6 Ree2 Bf4 Re3 Bg3 Rd2 Bf4 Rg3 Rac8 Bg1 Qf8 Qf2 Qd8 Qh2 Qd5 Bc5 Qfd6 Qg1 Ra8 Rf2 Qd2 Re3 Bg3 Bf7+
R1N2RNn/pQK1q3/1BQ2r2/3r2B1/BRn3kP/2n5/PB1rp1N1/r5bR w - - 0 1 legal: proof: g4 d5 e4 c5 exd5 e5 b4 h5 gxh5 e4 bxc5 e3 f3 Bf5 Ba3 Ne7 Bc1 Be4 fxe4 Ng8 Ke2 Kd7 Kf3 g5 d4 b5 c4 f5 h4 f4 c6+ Kd6 e5+ Ke7 Ke4 b4 c7 b3 c8Q f3 c5 g4 d6+ Kf7 Kd5 f2 c6 b2 h6 Kg6 c7 Kh5 d7 Bg7 Kd6 Nc6 d5 Na5 e6 Bc3 e7 Rb8 e8R Nc6 h7 Bg7 Ne2 g3 Qb3 g2 Qbb7 g1N Nd2 b1R Ne4 Ra8 Nf6+ Kh6 Rf8 Nge7 Bb2 Ng6 Ng8+ Kh5 Nf4+ Kg4 Ng2 Nce5 Bb5 f1R Ba4 Nc4+ Kc6 Rf2 d6 Qe7 d8B+ Rf5 Qd7 Ne2 c8N Nc3 Bb6 e2 Kc7 Bd4 Qc6 Rd1 Rb1 Bg1 Qb7 Rd5 Qc6 Rb8 Qb7 Qe4 Qdc6 Rf6 d7 Qe3 d8B Qe8 Nge7 Rg8 h8R Rd2 Rh7 Nh8 Rhf7 Rg5 Ng8 Qe4 Re8 Rgd5 Rff8 Rf2 Bg5 Rf6 Bc1 Qe6 Rb4 Qe3 Bb2 Qc5 Nce7 Rbd8 Nc8 Rd1 Nd6 Ra1 Nc8 Qe3 Nce7 R8d6 Ra8 Rd2 Nc8 R6d5 Qa6 Qe6 Qab7 Qe7+
2N1b2R/1k1Bpn1n/1N3Rn1/1K2r3/3Rq1Q1/3pQn2/2BPB2P/B1bNRq2 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Ra7 c3 Rb7 c4 Rb5 cxb5 Bb7 Qb3 Ba6 Qd1 Bc8 Ke2 g5 Kd3 c5 Kc4 g4 f4 d6 a4 Kd7 b6 Kc6 h6 b3 f6 g3 f7 b2 a6 g2 a7 Qd7 a8B+ Bb7 a5 Nf6 h7 Ng8 a6 Qg4 a7 Bh6 f8Q Nf6 Ra4 Qf5 Nh3 g1Q Qg4 Nbd7 Ng5 Bg7 Be2 Qf1 Nc3 b1N Nd1 Nc3 Ne4 Nb5 Bb2 Nd4 Ba1 Nf3 Qf7 Rb8 h8R Nf8 Qe6 N6h7 Qh6 Qg6 f5 Bb2 f6 Bc1 f7 Qf5 Qhg5 Ng6 f8R Rc8 Qe3 d5+ Kc3 c4 Kb4 c3 Nd6 c2 Rf6 Rd8 Nc8+ Rd6 Ka5 Qe6 Rd4 Qe4 Rg1 Re6 Ka4 Qh3 Re1 Qf1 Ka5 Kd7 Kb4 Bc6 b7 Kc7 b8N Bd7 Bc6 Be8 Bd7 Kb7 Rc4 d4 Kb5 Bb2 Rb4 c1N Ra4 Nd3 a8B+ Kc7 Bd5 Bc1 Bb3 Nde5 Bc2 d3 Rd4 Kb7 Nb6 Ng1 Nc6 Nf7 Na7 Nf3 Nac8 Re5+
RK3N2/1r3p2/R3B1Pn/N1N2Qnr/4Q1RQ/b1N3r1/pk3PrB/2r3Qb w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 axb3 Nh6 b4 Ng8 b5 Ba6 Rh2 Bb7 Rh1 Bc8 d4 c6 d6 Bg7 d5 Kf8 e5 Qd7 e6 Bh6 exd7 Kg7 Qd2 Kg6 Qd1 Bf8 Kd2 Kf5 Ke3 Ke5 d8Q h5 b4 a5 g4 a4 g6 a3 g7 e6 b6 h4 g5 h3 b7 h2 d7 c5 b5 c4 b6 c3 g6 c2 d6 Nf6 g8Q Ne8 Ne2 Ra5 Nf4 Bg7 Nc3 Bf6 Bc4 Bh4 Qg1 Ra7 Qe7 Rh6 d8R Rh5 d7 Nc6 b8N Bb7 Na6 Nd6 Nc5 Ne4 Ra8 Nd4 Qc8 Ng5 d8Q Nf5+ Kd3 Bc6 b7 Nh6 b8N Rb7 Ba2 Be4+ Kc4 Bc6 Bb2 c1R Qd3 Bg2 Qh3 Bg3 Qh4 Bf3 Qcd7 Be4 Qb5 Bc6 Kb4 Kd4 Ka5 e5 Ka6 e4 Be6 e3 Qa5 Bd5 Nc6+ Kc4 Ra2 e2 Ra1 e1R Ra2 Rb6+ Ka7 Re3 Qb7 Rb4 Kb8 Rb3 Qd8 Rb4 Na5+ Kd4 Qg4 Bh4 Qf5 Rg3 Qe1 Rb3 Rg1 h1R Rg2 Rh2 Qg1 Rd3 Rg3 Rg2 Rg4 Rdg3 Ra1 Nf3 Ra2 Be7 Ba1 Bf8 Qh4 Ng5 N3a4+ Rgc3 Bd7 Bg7 Nc6+ Kc4 Bb2 Rh2 Nfe6+ Bd4 Bc8 Bh1 Nf8 Rg2 Ba1 Rf3 Bc3 Re3 Ba5 Rb2 Bc7 Rbb1 Bh2 Reg3 Nb6+ Kc3 Be6 Ne4 Ra1 Kc2 Nba4 Bb2 Nc3 a2 Na5 Ba3 Qb4 Rb3 Rb1 Rf1 Rd1 Kb2 Rd6 Rc1 Rda6 Ng5 Qb7 Bb4 Qbe4 Ba3+ Kc7 Rb7+ Kc8 Rc7+ Kb8 Rb7+
Q1rQ1b2/NPnR3r/bk1b4/3Rb3/2B2B1Q/RpQpK3/3PN3/1R1N1nn1 w - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 bxa5 h5 c4 b4 g4 c6 gxh5 Qb6 Qc2 Qc5 Qd1 Qb5 cxb5 Ra7 Qf3 Ra6 Qd1 Ra8 Ke2 Kd8 f4 Kc7 h4 g5 a4 d5 a6 e5 f6 b3 b6+ Kd6 f7 Kc5 b7 e4 f5 d4 h6 e3 a7 g4 f6 g3 a5 g2 h7 Bh3 h5 Na6 h6 Bd6 f8R Bg3 f7 Nf6 Nc3 Ng8 Ra3 Re8 a8N Nf6 Qc2 Re5 Nb6 Bf4 Rd8 Nc7 f8R Ne4 a6 Re7 a7 Bd6 a8Q Ng3+ Kd3 e2 Nc8 e1B Rf5+ Be5 Na7 Kb6 Rd7 c5 Bb2 Rc8 h8Q Rh7 Nge2 g1N Qd8 Bg2 Rfh5 Bc6 Nd1 Bb5+ Qc4 Ba6 Ba1 Bd6 Rd5 Bf2 Bc3 Be3 Ba1 Bef4 Bb2 Bfe5 Bc3 Re7 h7 Rg7 h8Q Rh7 Ba1 Bf8 Qhf6+ Bed6 Qh4 Be5 Bh3 Nf1 Be6 Bed6 Ke4 d3 Qc3 c4 Kd4 Ng3 Ke3 Be5 Qc1 c3 Bf7 c2 Bg8 Bed6 Be5 Bc4 Bf4 Ba6 Qb2 c1B Qc3 Bb2 Rd4 Ba1 Bc4 Nh3 Rf1 Ng1 Rd5 Bb2 Nf2 Ba1 Rb1 Bb2 Nd1 Ba1 Qc1 Bae5 Qc3 Nf1+
N7/8/3Q1RnR/NBNbr1b1/Bq3pPp/Q1Pp3r/N3R1K1/BkB1b2n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 g4 Ke6 e4 a5 b4 f5 c6 d5 g6 h5 g7 d4 b6 f4 b7 a4 b5 a3 b6 a2 c7 Na6 b8B Qd5 b7 Bd7 c8N Bc6 Nd2 Nb4 Nb3 Be7 Bb5 Be8 Na5 Bc5 Nb6 Qd6 Kg2 Qd7 Ne2 Nf6 g8Q+ Bf7 Nc3 Nbd5 Qf8 Qd6 Rb1 a1B Na2 Ra7 Na8 Bb4 Bc7 Qb6 b8N Ne7 Na6 Be1 Rh4 Ng6 Qa3 Qd6 Bb6 Qb4 Nc5+ Ke7 e6 Kd6 e7 Ke5 e8B Bd5 Ba4 Re7 Beb5 Bac3 Rh2 Bh4 Rb3 Bce1 Re3 Bg5 Re2 Ng8 Qd2 Nh6 Bd8 Re6 Be7 Nf5 Bf6+ Kd6 Rh3 Ng3 Qd1 Nh1 Qdd3 Bc4 e5+ Kd5 Rh4 Re7 e6 Rh6 Qd2 d3 Ba1 Re8 e7 Rhh8 Re6 Rh7 Rf6 Rh6 Nc3+ Kd4 Qe2 Rhh8 Qe6 Rh6 Qd6+ Bd5+ N5e4 Rc8 e8R Rc5 Bcb2 Ke3 Na2 Ke2 Bc1 Kd1 Nb3 Rh8 c3 Kc2 Na5+ Kb1 Rh2 Bf7 Re7 Re5 Nc5 Bc4 Rh7 Bf7 Rh6 Bd5+ Kh3 h4 Rc2 Rhe8 Re2 Re3+ Kh2 R8e5 Kg1 Rf3 Kg2 Rh3+
2k3n1/Qr3Rn1/2B2NKP/2n1BPqR/1Bpp4/N1Rb3B/1prbQ3/1N3R2 w - - 0 1 illegal: No proof kernel
3N4/kNQnRB1Q/prnK1N1b/2Pb1Q1P/2p1pQ2/5RB1/3br2B/2qB4 w - - 0 1 illegal: No proof kernel
1nRN4/5pN1/br1PBn2/1B2pP1r/3R1QQ1/b2Q4/B1K1pB1q/1RQn1k2 w - - 0 1 illegal: Other
NRN4b/4KpB1/3P1Qp1/1b3Pr1/QR2NQ1q/1B2R3/nN3p1Q/n2rrk2 w - - 0 1 illegal: Other
k6n/1p2r3/brQNQ1p1/B3Rp2/B3n1bK/Q3nPQN/1P1NR3/2q1NB2 w - - 0 1 legal: proof: g4 h5 gxh5 c5 d4 d5 dxc5 d4 e3 Bh3 Bc4 Bd7 Bf1 Bc8 Nc3 e6 Nb5 d3 Nxa7 Bd6 Qg4 Be5 Qd1 Bd4 exd4 Qd7 Kd2 Qc7 Ke1 Qd8 h4 Kd7 c4 Kc7 a4 f5 h6 g6 f3 e5 Kf2 d2 Kg3 e4 d5 e3 h5 e2 a5 e1N d6+ Kd7 a6 Qa5 c6+ Kd8 h7 Qc5 c7+ Kd7 h6 Qa5 c5 Qa2 c6+ Ke6 d7 Kd5 d8N Ne7 Ne6 Qa5 Kh4 Re8 h8N Rd8 h7 Qa2 Nf7 Rf8 h8Q Bd7 c8Q Qb3 c7 Ng8 Nb5 Kc6 a7 Re8 Ned4+ Kb6 Nh3 Qc2 Nfd6 Bc6 Qe2 d1B Rh2 Nd7 Ra5 Nh6 Bd2 Nc5 Qhe5 Nf7 Na3 Ne4 Nb3 Re7 Qg3 Nh8 Re5 Qc1 Nc2 Bb5 Ba5+ Ka6 Qc4 Be2 Q8e6 Rf8 c8B Rf6 Bd7 Bd3 Na3 Nc2 Nd2 Ne3 Nc2 Be2 Ne1 Bd3 Bg2 Bf1 Qc3 Bbc4 Ba4 Bcd3 Bb4 Kb6 a8Q Ba6 Qf8 Ka7 Qc6 Bac4 Ba5 Ba6 Qb3 Rfe6 Qfc8 Rf6 Qce6 Ka8 Qa3 Bab5 Bh1 Ba6 Re2 Bg2 Ng5 Bh3 Bg2 Bg4 Bf1 Rf8 Nh3 Rc8 Qc2 Rc6 Qcc4 Rb6 Qcc8+ Ka7 Qc6 Ka8
B3rB1R/Qp1BPn2/pNQ1R1q1/1PQp1bRr/1b5K/4Nk2/b2B3n/1R6 w - - 0 1 illegal: No possible last move
NBRn3Q/p4N2/2nR1r2/p2P3B/3QrR1r/k5P1/1pKb2NB/3bN1Bq w - - 0 1 illegal: Other
q1r1Q1Q1/pp3n1B/2RRNNb1/2Q3P1/Qb1Nn3/R1B1b1K1/p3P3/1R2r2k w - - 0 1 illegal: Other
q1q3n1/1k3B2/rn3RbP/8/2N1Rp1Q/B2NB2N/QB1PpRp1/b2KNr2 w - - 0 1 illegal: No possible last move
8/R3PbBN/1qkP2BR/bn2p1p1/1Q3N2/2pBN1nr/q1Q1NQ2/K1Q1r3 w - - 0 1 illegal: No proof kernel
b2Bn3/Q2p2pk/n1B3N1/P2q3r/BqRN1K1b/r3PR2/1pBN2N1/1Q4R1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 b5 Kg3 f5 a4 Kf7 c4 b4 h4 b3 e6+ Kf6 e7 b2 e8B Ne7 h6 Ng8 c6 Ba6 h5 Ra7 h7 Rc7 h6 Rb7 c7 Qe7 c8B Qc5 Bg6 Ra7 Bb7 Be7 Bg5+ Ke6 e3 Qb5 c5 Bf6 c6 Qb6 c7 Qc5 c8R Bc4 a6 Nc6 a5 Bd8 Nf3 Nd4 Rg1 Qa3 Nbd2 Nb3 Kf4 Nf6 Bc6 Nc5 Qb1 Rc7 a7 Na6 a8Q Qb4 Qa7 Bd5+ Nd4+ Ke7 Bg2 Kf8 Ba4 Ba8 Bgc6 Ne8 Rf1 Rb7 Rf3 Rb5 Bf6 Rc5 Rc7 Rc3 Bh4 Ra3 Bg5 Rg8 h8N Be7 h7 Bd8 Nf7 Rh8 Ne5 Bf6 Nd3 Bd8 Ke5 f4 Ne1 Be7 Bgc2 Kf7 Ke4 Kg6 Ng2 Bd8 Rh3 f3 Be7 f2 Rf3 f1Q Kf4+ Qd3 Bf6 Rf8 h8N+ Kh7 Ng6 Rh8 Rc8 Qdb5 Bh4 Qd5 Be7 Bb6 Bd8 Bc5 Bcb5 Be7 Rc4 Bh4 Bc6 Bf6 Qa2 Bh4 Rg1 Kg8 Qa1 Rh5 Qb1 Kh7
R2r1Bq1/b3r2R/3k1pn1/NpRB1bB1/B1pN3b/R4P2/1QK1rP2/1QQ5 w - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Nd7 g4 Ne5 gxh5 Nf3+ exf3 Ra7 Na3 Ra6 Nb1 Ra8 h4 Kd7 d4 e5 Kd2 g5 a4 c5 a6 b6 a5 g4 h6 e4 d6 e3+ Kc2 g3 d5 e2 a7 e1B h5 g2 h7 Ba6 h6 Qb8 Bb5+ Kc8 d7+ Kc7 d8B+ Kd6 Rh5 c4 Ne2 g1R Bcg5 Rg2 Ra3 Bc8 a6 Bg7 Bde7+ Kc7 Qc1 Rg3 Nd2 Bf6 Nb3 Bfc3 Ned4 Bb4 Bf8 Bed2 Na5 Be7 Ba4 b5 d6+ Kd7 Qb1 Rg4 Qc1 Be3 Qb1 Kd8 d7 Kc7 d8R Rf4 Rd5 Re4 Rc5+ Kd6 Rh4 Bf5 Rh5 Qb7 Rh4 Rc8 a8R Re8 a7 Qd5 Qc1 Nf6 Qb1 Nd7 Rh1 Rg8 h8Q Ne5 h7 Ng6 Qg7 Rd8 Qh6 Rg7 h8Q Qe6 Rb8 Qc8 a8B Qe6 Bd5 Rh7 Rc7 Rg7 Ra8 Qc8 Ne2 Ba7 Rc5 Rh7 Qhb2 Qe6 Bg7 Bf6 Rh2 Qe8 Nd4 Qg8 Be3 Bh4 Bg5 f6 Bf8+ Rhe7 Qh8 Bg3 Rh7 Bh4 Qg7 Rc8 Qh6 Rb8 Ndb3 Rd8 Nd4 Bg3 Qhh1 Bh4 Qhc1 Re2+
2R2b1R/1k4pp/2Rnb1br/2p2N2/3Pr2q/KNN1BQr1/N1P2QB1/2Q4R w - - 0 1 illegal: No proof kernel
4RN2/pp1r4/Bk2q3/b3N3/PB1bR2Q/b1pr1Q2/KP3NQ1/2BQBn1r w - - 0 2 legal: proof: e4 g5 c4 d5 cxd5 f5 exf5 Na6 f4 Nc5 h4 Ne4 g4 Rb8 f6 Bd7 f5 Be6 f7+ Kd7 f6 Bf5 gxf5 g4 Qb3 Ra8 Qd1 Ng5 hxg5 Bg7 Rh3 Bh6 Rh1 Bf8 a4 h5 d4 c5 Kd2 Kc7 Kc2 e5 Kb3 g3 d6+ Kb6 d7 h4 d5 g2 g6 h3 g7 c4+ Ka2 c3 d6 e4 Ba6 h2 Na3 e3 Nh3 g1B Nc4+ Kc5 Nf2 e2 Ne5 Qb6 d8Q e1B d7 Ne7 g8Q Nd5 Qg2 Bh6 f8Q+ Qd6 f7 Ne3 Qh4 Rh7 d8B Nf1 f6 Bed2 Be7 Kb6 Rb1 Qd7 Bb4 Bde3 Bd2 Qc7 Be1 Qd6 Rc1 Rd8 Rc2 Bg7 Re2 Bd4 Re4 Rh8 Qdf3 Qc6 Qd6 Rd7 f8B Bc5 Be7 Rhd8 f7 Bh8 Qd5 Qe6 Bg5 Be7 f8N Bd6 Neg6 Bd4 Ne5 Bc7 Bc1 Bc5 Nh3 Bgd4 Rg1 h1R Nf2 Rg7 Qd1 Rg3 Qgf3 Rd7 Rg2 Rgh3 Rg7 Rg3 Re7 B5d6 Qg2 Rd3 Re8 Be7 Ba3 Bb4 Qdf3 Ba5 Bb4 Bd6 Qb3 Qg4 Qbd1 Be7 Bd6 Qg6 Bb8 Beb4 Bd6 Ba3 Bb4 Qe6+
1bq1Rr2/2B3qQ/1R3Np1/kp2PRQ1/6Bp/3bQ1QP/3qN1n1/K2nR1N1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 f5 fxe5 b5 b4 a5 bxa5 f4 g4 Ra6 Ba3 Rf6 Bc1 Rf5 gxf5 Be7 Kf2 Ba3 Ke1 Bf8 e6 h5 a4 c5 e4 c4 d4 c3 f6 g6 f7+ Ke7 h3 Kd6 a6 Kc7 e7 Kb6 e8N h4 a7 c2 Kd2 f3 Kc3 f2 Kb2 Qd6 a8Q Ba6 Nc3 Qh2 d6 Qe5 d5 Qh5 a5+ Kc5 d7 Kb4 d8Q Bd6 f8R Nh6 Bf4 Ng4 Qb6 Ne5 Qd3 Qd1 Nf3 Ned7 Be2 f1Q Qaa7 Bc5 d6 Qd2 Rf5 Nf8 Qh7 Bb7 a6 Nc6 a7 Na5 a8R Qfd1 Re1 Ne6 Ng1 Rf8 Qg3 Nc4+ Ka2 Bd5 Bg4 Ne3+ Kb2 Bd4 R1a6 Bc4 Rd8 Bc5 Nce2 Bd3 Qba7 Bb6 Qae7 Ba7 Rb6 Bb8 Qg5 Ka5 d7 Nc5 Rc8 Ne6 d8Q Q1c1+ Ka2 Nd1 Qd4 Qc3 Qde3 Qg7 Nf6 Qd2 Be5 Nf4 Ka1 Ng2 Re8 Qb4 Bf4 Qc5 Bd6 Qc8 e5 c1Q+ Ka2 Qe7 Bc7 Qd2+ Ka1 Qg7
R1R1q3/p2Q1bK1/2p1NB2/1B1qn3/3NR3/NbPQ3p/1B2r2P/B2rNq1k w - - 0 2 legal: proof: e4 b5 a4 e5 axb5 Ke7 d4 Kf6 dxe5+ Ke7 f4 Bb7 e6 Kf6 e7 Bc8 e5+ Ke6 g3 Kf5 g4+ Kg6 Ra4 Kh6 Ra1 g6 e6 Bg7 Qd2 Be5 fxe5+ Kg7 Qe2 Na6 Qd1 Nb8 Bf4 f5 Qd2 Nc6 Qd1 Nd4 Be3 f4 Bc1 Nf5 gxf5 Qe8 Qd3 Qf8 Qd1 Qd8 Ke2 Kh6 Kd3 Kg5 Kd4 Kh4 e8R h5 b4 d5 e7 g5 b6 f3 e6 g4 Ke5 f2 f6 d4 b5 d3 f7 d2 f8N g3 b7 g2 b8B Ba6 b6 Rh6 b7 Bb5 Na3 Be2 Bb2 Qc8 Nf3+ Kh3 Rc1 h4 Ne1 Bh5 Bb5 f1Q Rd8 g1Q e8Q Qg6 e7 Be2 Ne6 Rh8 Nd4 Qc6 Qd7+ Bg4 e8N Nh6 Ng7 Be6 Rg1 Re8 Rg4 Bf7+ Nge6 Qch1 Rf4 Qd5+ Kf6 Ng4+ Kg7 Ne5 Re4 Re7 Qe2 d1B Rh8 Qe8 Qd3+ Nf3 Rb1 c6 Be5 Rd8 b8B Qd6 Bf6 Qd5 Bg3 Ne5 Ba1 Ng6 c3 Ne5 Rb4 Bb3 Bf4+ Qf3 Be3 Qf1 Bc1+ Nf3 Nec2 Kg2 Ne1+ Kh1 Bcb2 h3 Qc8 Rd6 Qd7 Qb8 Rc8 Ne5 Ba6 Re8 Rb7 Re7 Bb5 Re8 Rbc7 Re7 Rh8 Qe8 Rc8 Qd8 Ra8 Ng6 Ndf3 Re8 Rc4 Qe7 Neg5 Qee5 Qc2 Qd2 Rf4 Re7 Rhc8 Qde3 Rb4 Rd1 Qcd3 Qd5 Rh4 Re8 Nd4 Qe7 Rf4 Qd8 Rh4 Re2 Nge6 Qe8 Re4 Ne5
3R4/r1R2pKp/nB2NPq1/1qR3P1/2N1Rp1k/Q1b2Br1/3QQ3/1NQ3rb w - - 0 1 illegal: Other
3KR2N/1B2q1pR/1Q3prN/1R2QP2/k2B2bQ/2npbRQ1/3P3n/q3N2q w - - 1 2 legal: proof: e4 c5 a4 h5 g4 a5 gxh5 b5 axb5 d5 b4 d4 bxc5 Ra6 Ra3 Rd6 Ra1 Rd5 exd5 Qd7 Na3 Qc7 Nb1 Qd8 Ke2 Kd7 Kf3 e5 Kg4 d3 Kf5 f6 c4 a4 f4 e4 h4 a3 b6 a2 b7 e3 h6 e2 d6 Kc6+ d7 e1Q h7 Qee7 h5 Qb6 h6 Qb3 Nf3 Qa4 Nh4 Qa6 Qf3+ Kc7 c6 Kb6 c7 Ka5 c5 Nc6 b8Q Qe1 Qg3 Qc4 Na3 Qe3 Nc2 Qg1 Ne1 Qf2 Bg2 Qfd4 Bb2 Qb5 Ke6 Ba6 d8Q Qb7 c8R+ Qb6 Nf5 Qc3 Kd7 Kb5 Qe5 Qb8 Qb6+ Ka4 Re8 Qc2 Bd4 Nb4 c6 Qc1 c7 Qa7 Bb7 Nd5 c8R Bc5 Rb8 Nc3 Kd8 Bc4 Rf1 Be6 Rf3 Bd7 Rb1 a1Q Rb5 Qd1 Ne3 Bg4 f5 Ne7 Rc8 Ng6 Ra8 Nh4 Rc8 Rf8 h8Q Rg8 h7 Qdb1 Rf1 Nf3 Rf2 Nh2 Rf3 Bh3 Ng4 Rf8 Ng2 Qh1 Nh6 Bg4 Ne1 Qa3 Qg8 Qa1 Qf7 Rh8 Qh5 Rg8 h8N Rf8 N8f7 Rh8 Qhh4 Rh7 Ng8 Rh5 Ngh6 Rg5 Rh8 Rg6 Rh7 Qa5 Nh8 Qb4 Kd7 Qba3 Re8 Qb4 Kd8 Qba3 Bf2 Be3 Bg1 Bf4 Bc5 Be3 Bd4 Qe7+
2q2Kbk/2ppR1nN/2P4Q/3P2n1/2b1NBB1/B2N1p1R/2BrqQ1q/3N2R1 w - - 1 2 legal: proof: g4 e5 a4 a5 f4 b5 axb5 f5 fxe5 g5 Nf3 f4 Ng1 Ra6 h3 Rf6 h4 Rf5 gxf5 g4 Ra3 Bh6 Ra1 Bg5 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 Kf2 Kf7 d4 Kg7 e4 h5 c4 h4 b4 h3 f6+ Kh7 d5 g3+ Kf3 g2 Kg4 h2 Kh5 a4 b6 f3 f7 a3 f8B a2 e6 Nc6 e5 Nce7 c5 Ba6 b5 Bc8 c6 Bb7 Bf4 Bc8 b7 Ng6 b8Q N6e7 b6 Nh6 g6+ Kg8 g7 Ba6 b7 Ng6 e7 Qe8 e6 Bd3 Qe2 Kh7 g8N Qc8 e8B Ne7 Nd2 Nef5 e7 Bc4 Nh3 g1Q Qf2 Nf7 Ne4 Qg3 Bd3 Bb5 Rag1 a1Q Bc2 N7d6 Qa8 Nd4 b8N Qg2 Na6 Nf7 Nac5 Qa5 Nd3 Qe1 Qa3 Qgf1 Qc1 Ng5 Bf7 Bc4 e8R Qee2 Be6 Qd2 Bg4 Nde6 Ba3 Qfe2 Ngf6+ Kg7+ Nh7 Rg8 Bc5 Kh8 Re7 Ng7+ Kg6 Re8 Ba3 Rg8 Rd1 Re8 Rhg1 h1B Rg3 Bg2 Rg1 N5e6 Kf7 Bf1 N3g5 Bh3 Nc3 Rg8 Nge4 Ng5+ Kf6 Re8 Nd1 Rg8 Be6 Bg4 Rh3 Bh5 Bg4 Bf7 Qh4 Re8 Qh6 Qh2 Qb2 Bg8 Qd4 Qde2 Qf2 Qa6 Re6 Rb8 Ke7 Rb2 Kf8 Ra2 Re7 Qb7 Bb1 Rd2 Bc2 Qc8+
3Bk1n1/4qn1b/R1N2p2/1r1B3N/p1pB1rqP/2P4N/RqQ2NR1/4Q1KB w - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 b5 gxh5 g6 f4 b4 e4 b3 f5 Ke7 e6 Kf6 e5+ Kg7 f6+ Kh7 axb3 Ba6 b4 Bc8 b5 Be7 fxe7 Kg7 Kf2 a5 e8B Kf8 b4 d5 h4 c5 c3 a4 h6 c4 b6 d4 h7 g5 b5 g4 b7 d3 e7+ Kg7 b6 d2 e6 Ra7 Bg2 Qd3 Qc2 d1Q Bd5 Na6 b8N Ra8 b7 Nc5 Bg5 Nh6 Nd2 Qb1 Ne4 Qdd1 Bec6 Rf8 e8N+ Kg6 h8B Qb2 e7 Ne6 Ng7 Ng8 e8Q Nd8 Nh5 Bf5 Rh2 Ra5 Rg2 Rb5 Nh3 Qe2+ Kg1 g3 Nef2 Qe7 Ra2 Be4 Bd4 Bd3 Rh2 Bf5 Bh1 g2 Bd5 Bd3 Nc6 Be4 Nf6 Kg7 b8R Bh7 Nd3 Kg6 Ra8 Kg7 Ra7 Kg6 Ra6 Kg7 Kf2 Kg6 Nh5 g1Q+ Kf3 Qg4+ Kf2 Qd6 Qe1 Qe7 Kf1 f6 Bf4 Re8 Bc7 Nf7 Rg2 Rd8 Kg1 Rd6 Qe3 Re6 Qed2 Re4 Bd8 Rf4 Qf2 Qe4 Qe1 Qe7 Ng3 Kg7 Nh5+ Kf8 Ndf2 Ke8
N6r/2R2NK1/1BRpN3/1pRqb2k/pPq2Qr1/3N2nr/1QB2P2/B2b2R1 w - - 0 1 illegal: No possible last move
Rb6/p1pr3Q/PQNNn3/B1Pp4/1Qqq3b/1BB2k1b/KQRRnB2/8 w - - 1 2 illegal: Other
2Q4n/1R1B4/K1pq2BR/B1Nnr1p1/2P1RBb1/1qn1Pk2/Q3Np2/r3R1Q1 w - - 0 1 legal: proof: d4 h5 e4 b5 g4 e5 dxe5 b4 gxh5 b3 axb3 Bb7 b4 Bc5 b5 Be3 fxe3 Bc8 Kd2 Ke7 Kd3 Ke6 Kc4 a5 b4 g5 h4 f5 h6 a4 h5 a3 h7 d6 b6 a2 Kb5 f4 c4 d5 h6 f3 b7 f2 Nc3 d4 Nge2 d3 Na4 d2 Nc5+ Kf7 e6+ Kf6 e7 Ke5 e8R+ Ne7 Bh3 Qd4 Qg1 d1N Bd7 Rf8 h8Q+ Rf6 h7 Qd3 Rh6 Ra7 Bd2 Nc6 b8B Nb2 Re1 Rb7+ Ka6 Nd1 b5 a1Q+ Ba5 Nc3 b6 Qd6 Qg7 Qb1 h8Q Nd8 Qf7 c6 Qhg8 Rc7+ b7 Rg6 Qd5+ Kf6 Qd2 Qb3 Qa2 Ned5 Re7 Nf7 Qd8 Kg7 e5 Re6 Re8 Re7 e6 Nh8 Qd2 Rf7 e7 Rf5 Qa2 Re5 Bg4 Be6 Qc8 Rd7 Bf5 Kf7 Bg6+ Kf6 Bbc7 Bg4 b8R Re6 Rb7 Ke5 Rg8 Rd8 e8B Re7 Bd7 Rf8 Rg7 Rf5 Na4 Ke4 Nc5+ Kf3 Rf7 Re4 Re7 Rfe5 Bb8 Rd4 Bbc7 Rd1 Re6 Rf5 Re4 Ra1 Bb8 Qe7 Bg3 Qd6 Bf4 Re5
Nr1Q3q/1k2n2r/2N5/p5Bn/1ppbPB2/R1B3N1/qPBQ3K/q1R1R2R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 b4 c4 Ba6 cxd5 Bb5 axb5 Qf6 Nc3 Qe7 Nb1 Qd8 Kf2 Kd7 Kg2 Kc8 d4 c5 h4 f5 h6 g5 d6 a5 e6 c4 d5 g4 h5 g3 e7 f4 e8R Ra6 b6 Kb7 h7 Be7 h6 Bg5 d7 Ra7 d6 Nf6 Nc3 Na6 Na4 Qe7 d8N+ Ka8 d7 Nc5 b7+ Kb8 Qd2 Na6 Nc6+ Kc7 b8B+ Kb7 d8Q Qf8 Nb6 Qg8 Ra3 Nh5 Na8 f3+ Kh3 g2 Kh2 f2 Bf4 Nb8 e3 Nf6 Bd3 f1Q Ne2 Nh5 Ng3 Bf6 Bc2 Bd4 Rg1 Qg7 Re4 Re8 h8B Qh7 Bf6 Qh8 h7 Qd3 Re5 Qb3 Re1 Rg8 e4 Qa2 Rf5 Re8 B4g5 Rg8 Rff1 g1Q+ Kh3 Qe3 Kh2 Qeb3 Be5 Qa1 Bgf4 Qba2 Bg7 Bf2 Bc3 Bd4 Bg5 Nd7 Rg1 Nf8 Rh1 Ng6 Bf4 Qe5 h8R Ne7 Bg5 Re8 Rf8 Qh8 Rff1 Ka6 Qf2 Rd7 Bcf4 Kb7 Qd2 Rc7 Qd6 Rb8 Qd8 Nc8 Rc1 Rh7 Rfe1 Ne7
b1K4R/Q4Q2/1n1b1q2/N4BB1/pP1Q2BN/Rp2pR2/Pbq2Q1n/5Rrk w - - 0 1 illegal: No proof kernel
1R2Rn2/1q3K1N/B4Ppp/4pbBk/n1rQ3n/Q2qr1QQ/N3P3/1B4RR w - - 0 1 legal: proof: g4 b5 h4 f5 gxf5 d5 c4 b4 cxd5 g6 h5 b3 h6 Bg7 hxg7 Qd7 axb3 Bb7 b4 Qd8 b5 Bc8 f4 Kf7 Kf2 a5 Ke3 c5 Ke4 e6 Ke5 h6 b4 a4 d4 a3 b6 c4 d6 a2 f6 c3 b7 c2 d5 Qe7 b5 Ra7 d7 Qc5 d8R Qc3+ Qd4 Ra4 f5 Qb2 d6 Rb4 b6 Ne7 d7 Rb3 Nf3 Rb4 Bg2 Qa3 Re8 Qa6 d8Q Nd5 Qd7+ Ne7 Bg5 c1N Nc3 Nb3 Rag1 a1Q Na2 Rf8 Kd6 Nc6 b8Q Qd3 b7 Nc5 Qbc7 Qad1 b8R Q1b3 Bh3 Ne5 Bg2 Kg8 f7+ Kh7 g8B+ Kg7 Bh3 Na4 Qc3 Rc4 Qe1 Nd5 Qg3 Nf4 Ke7 Ng2 Bg4 Nh4 Bh3 Qb7 f6+ Kh8 Qc7 Nd7 Bf5 e5 Qcc5 Rc3 Ke6 Rc4 Qdg4 Re4 Qd4 Re3 Re7 Rd8 f8Q Re8 Q4h3 Rd8 Qe8 Nf8+ Kf7 Rd7 Qd8 Rc7 Q8d6 Rc4 Be4 Bf5 Qa3 Qd1 Bb1 Qd3 Ke8 Qd1 Be6 Qd3 Bc8 Kg8 Re6 Qb2 Ba6 Qb7 Kd8 Kf7 Re8 Nd7 Rh8 Ke6 Ke8 Bg4 Rf8 Kf5 Kf7 Qc8 Re8 Nf8 Bf4 Qc6 Ng5 Qf3 Qhh2 Qg2 Nh7 Bh3 Qf2 Kg4 Bg5+ Kh5 Qfg3 Bf5 Qhh3 Qb7+
1Q1Nk2N/p2p1r2/1Rpb2NQ/1P1b1q2/1Bb1q1rn/2P1B3/Q4R1Q/1BN1K3 w - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 b5 fxg5 b4 h4 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 Ne7 h5 Bh6 g6 Ng8 g5 Bf8 g7 Nc6 Ra6 Nce7 Ra1 Ng6 hxg6 Qe7 Rh2 Qf6 Rh1 Qd8 e4 f5 b4 h5 b6 h4 e6 f4 b7 h3 b8B h2 e5 c6 e7 f3 c3 Nf6 g8Q Rh6 g7 Ba6 g6 Rh7 Bd3 Nh5 Bd6 Rh8 Na3 Nf4 Qh7 Ne6 g8Q Rb8 g7 Rc8 Be3 Rb8 Nb5 Nc7 Bb1 Nd5 Nd4 Bb5 Qh6 Bf1 b5 Bd3 Bb4 Bg6 Ra6 Bf5 Qc2 Rb7 Nge2 Qb8 Nc1 Nf4 Ne6 Bg6 Rf1 h1B Qch2 Bd3 Rb6 Ng6 Nd8 Bc4 Rf2 Nh4 Qge6 Qd6 g8N Rb8 Qd5 Qg6 Qd2 Be2 Qa2 Qe4 Ne6 Kf7 e8N Rh7 Ne7 Bc4 Ng6 Bd6 Nd8+ Kg8 e6 Rf7 e7 Bg2 Re2 f2+ Kd2 f1Q Rf2 Qfd3+ Ke1 Qf5 Rf1 Bgd5 Rf2 Bg3 Nd6 Qde4 Nh8 Ra8 Nc8 Bd6 e8Q+ Bf8 Qee5 Bd6 Qhf6 Kf8 Ne7 Ke8 Qh6 Rc8 Neg6+ Be7 Qb8 Bd6 Nf4 Ke7 Nde6 Rg8 Nd8 Rg4 Nfg6+ Ke8
2RQ1Bb1/2r2N2/2B1k1p1/QbpNP3/1bpq4/5q1N/r2Q2P1/1BRQB1nK w - - 0 1 illegal: Other
3K2QQ/pNP2R2/pk3n2/5n2/1nqq3Q/R1b1rN1p/PQ1N2B1/BR1b1N2 w - - 0 1 illegal: Other
2kB1rNr/3R1p1N/1nK2np1/3NQ1Q1/2bn1Br1/2BB2P1/2P2Q1p/b1N2R2 w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 c5 fxe5 g6 d4 Bb7 dxc5 Nf6 h4 Bc8 h5 Ng8 h6 Qe7 Qd5 Qf6 Qd1 Qg7 hxg7 Be7 Nf3 Bd6 Ng1 Bf8 Kd2 Kd8 Kc3 a5 Kc4 h5 Kd5 h4 e4 d6 b4 h3 e6 a4 g3 h2 c6 a3 c7+ Ke8 e7 Kd7 e8N a2 e5 Na6 e6+ Ke7 b6 Rb8 b7 Rh6 b5 Ra8 b8B Rh5+ Kc6 d5 b6 d4 b7 d3 Qf3 d2 Qf2 d1N Nc3 Rh3 Bb2 Rh5 Bd3 Re5 Nge2 Rb5 Nf6 Rg5 Nc1 Ne3 Rd1 Rg4 Nh7 Nf6 g8N+ Ke8 e7 Nc5 Ba7 Nf5 b8B Be6 Bb6 Na4 Nd5 Bg7 Bc3 Bh8 Rb1 a1R Bba5 Ra2 Rb7 Nb6 Rf1 Bc8 Ra7 Ba6 Rb7 Bc4 Ra7 Ng7 Rb7 Ne6 c8Q+ Nd8+ Kd6 Bg7 Qcf5 Nc6 Qg5 Nd4 Rd7 Rb2 Bc7 Rb5 Bd8 Rc5 Bd2 Rcc8 Bac3 Bh8 Bf4 Bg7 Ra7 Rcb8 Kc7 Rc8+ Kb7 Kd7 Bdc7 Bb3 Bb4 Nb5 Nh6 Rh8 Ng8 Rf8 Bd8 Nh5 Ba5 Ba1 Bc3 Ke8 Kc6 Nf6 Rc7 Bc4 Ra7 Nc7 Kc5 Kd7 e8Q+ Kc8 Kc6 Nb5 Qee5 Ne4 Re7 Nf6 Rd7 Nd4+
r6r/2b1p1NR/4bBnp/4R2B/Q1N4Q/3B2b1/RpQRP1nP/n3BK1k w - - 1 2 legal: proof: c4 a5 b4 g5 bxa5 b5 a4 d5 cxd5 b4 f4 Qd7 fxg5 Qb5 axb5 Bg4 Qa4 Be6 Qd1 Bc8 g4 Kd7 d4 Kd6 a6 c5 a7 f5 b6 b3 g6 c4 g5 c3 g7 b2 b7 f4 g6 f3 Nh3 h6 Bg5 c2 Ra5 c1B Nf4 Na6 b8B+ Nc7 Bh3 f2+ Kf1 Be3 Na3 Bd7 Bg4 Rh7 Ne6 Rh8 Bf6 Bg5 Bh5 Rh7 Qc2 Ba4 Nc4+ Kd7 d6 Bb3 Re5 Bf4 d5 Na6 Bc7 Nc5 Ba5 Bg3 Be1 Rh8 Rg1 Rc8 a8R Ba2 Ra5 Ra8 Ra3 Nb3 Ra5 Kc8 d7+ Kb7 d8R Na1 d6 Kc6 d7 Bb3 Bg5 Nf6 g8B Bg7 Ra2 Nd5 Bh7 Nf4 Bh4 Bf6 g7 Ng6 g8Q Bg5 Ng7 B5f4 Nb6+ Kd6 Bf6 Be6 Nc4+ Kc6 Re3 Kd5 Qe8 Bc7 Re5+ Kd4 Rg2 Nf8 Bd3 Ng6 Rc8 Bb8 d8Q+ Bd6 Qa5 Bc7 Qb4 Rg8 Rg1 Rh8 Kg2 f1N Qea4 Bf4 Kf2 Ne3 Rgg5 Ng2 Kf1 Bg3 Rf8 N6f4 Rf7 Ng6 Nd2+ Bc4 Rd5+ Ke3 Rd7 Be6 Nc4+ Kf4 Re5 Nf8 Bhg6 Kg4 Bh5+ Kh3 Ne8 Rb8 Rh7 Ra8 Ng7 Ng6 Be4 Raf8 Rd2 Ra8 Bd3 N2h4 Nb6 Rae8 Qd4 Ra8 Nc4 Ra7 Bf2 Raa8 Ke1 Kg2 Qf4 Nf5 Qh4 Kh1 Kf1 Ne3+ Ke1 Nd5 Kf1 Ndf4 Be1 Ng2
2nk1BnQ/K4Q1r/3p2n1/3B2Rp/N3pN1P/6Pn/N1bqRQB1/1r4QB w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 d4 f5 dxc5 Bg7 e3 Be5 fxg5 f4 Nh3 f3 Ng1 Bf4 exf4 Kf7 Qe2 Kf8 Qd1 Ke8 Kf2 e5 Ke3 h5 c4 a5 b4 a4 h4 f2 f5 a3 g6 a2 g3 Ra6 f6 Ra4 f7+ Ke7 f8Q+ Ke6 b6 Na6 g7 Qc7 b7 Qa5 b8Q Ra3+ Nc3 Nc7 c6 Rh6 b5 Ra4 b6 Rf6 b7 Rg6 c5 Qb4 Bg2 Qg4 Nh3 Ra3 Qg1 Ra7 Ba3 Ne7 Rh2 Na8 c7 Nb6 c6 Qb4 g8B+ Kd6 B8d5 f1N+ Kd3 Rf6 Qf7 Ng8 Nf4 Ne3 Rf1 a1N Na2 Ng4 Rb1 Ra4 Qa7 Nb3 b8Q Nd2 Rc1 Re6 Rc5 Rh6 Bh1 Ne4 Re2 Ra6 Qba8 Bb7 c8B Rh7 c7 Ng5 Bdg2 Bf3 Bb7 Nh3 Bd5 Nc8 Ra5 Rc6 Qaf2 Rb6 Rc5 Qb2 Kc4 e4 Bb4 Qd2 Ba3 Rc6 Kb5 Ne5 Bb4 Ng6 Ka5 Nce7 c8N+ Kc7 Nb6 Nc8 Ka6 Kd8 Kb7 Re6 Na4 Rd6 Qb8 Rb6+ Ka8 Rb7 Ra5 Rb5 Bf8 Rb1 Qe5 d6 Qh8 Nce7 Ka7 Bg4 Re1 Bd1 Re2 Bb3 Bb7 Bd1 Rg5 Bc2 Bd5 Nc8+
Q1NR1K2/3R3p/2r1R3/4N2p/pnrQBnqP/1kBBb1Q1/1nR4P/n4B2 w - - 0 1 illegal: Other
4n1Q1/Bqkr1BQ1/2n1bR2/1bB5/R3NpP1/b2b1Npp/2RN2NP/4R2K w - - 0 1 illegal: No proof kernel
b1B1R2b/r5Qq/p1p5/2KNN1Pk/NB3p1n/RBb1QP2/1Q1b4/2rB3N w - - 0 1 illegal: No proof kernel
Kqk1r2B/R1N2Q1n/P1N4b/p2pnn2/P1p1nQ2/4N2R/1B4r1/1R1B1N1R w - - 0 1 illegal: No proof kernel
qQ2R2b/1Q1B2bB/4bp2/N4pQ1/2Kn4/kn1p1PrQ/PRB3N1/b3R1B1 w - - 0 1 illegal: Other
1Br1kb1N/RN6/npP1rQ2/3qpRpR/8/B2bP1rR/B4K1r/QQ5Q w - - 0 1 illegal: No possible last move
qNnNBR2/5N1b/4Kn2/nQ6/pB5Q/B1NR2pB/P1knp1Pn/3Rr3 w - - 0 1 legal: proof: f4 b5 e3 c5 b3 c4 bxc4 e5 Nc3 g5 Nb1 d5 h4 a5 e4 g4 exd5 e4 c5 Bh6 Ba3 Bg7 Bc1 Be5 fxe5 Ra6 Be2 Rg6 Bf1 Rg5 hxg5 Ke7 Kf2 Kf8 Ke1 Ke8 Ke2 Kd7 Ke3 h5 Kd4 f5 c4 e3 e6+ Kc7 Ke5 b4 d4 b3 c6 Kb6 e7 g3 e8Q h4 d6 f4 c5+ Ka7 d5 h3 d7 b2 d6 a4 g6 f3 g7 h2 c7 f2 c6 Kb6 Qdh5 Kc5 Nh3 Kb4 Nc3 b1N Ba3+ Ka5 Ng5 Rh6 Qh4 Rh5 Ke6 Na6 Nf7 Nd2 Bb5 f1N Rd1 Ne7 g8R e2 Rf8 Nb4 Rg1 Bb7 c8N h1N c7 Be4 Nb6 Qa8 d8B Nc8 d7 Nf2 Be7 Ng4 d8N Bh7 Nd7 Nf6 Nb8 Nh2 Rh1 Nc6 Beb4+ Kb6 Rhf1 Na5 Rf3 Rf5 Rd3 Rf1 Qd7 Re1 Qd5 Nhg4 Qb3 Nh2 Be8 Nc6 Ne4 Kb5 Qb2 Kc4 Qb1 Nb6 c8B Na5 Nc3+ Nfg4 Bb7 Nc8 Be4 Nf6 Bf5+ Nde4 Bg4 Nd2 Bh3+ Nfg4 Re3 Ne7 Qf5 Nc8 Re4+ Kd3 Qb5+ Kc2 Rd4 Nf6 Rd5 Ng8 Rd3 Nf6
4B3/RRp5/1R2pb2/B1RrrN1B/1qb2q1B/1r1NpQ2/2P1P1Q1/kq1N2K1 w - - 0 1 illegal: Other
nb1k4/1B4B1/N7/Pp1qRp2/R2N2r1/BnPN1p1r/KRp1QQ2/Rb5N w - - 0 1 illegal: Other
2b2N1Q/k1nq2BN/2pb3Q/BP2R2N/1B1ppP2/N1RQ2p1/2B5/1K2rnr1 w - - 0 1 illegal: No proof kernel
1Q6/3Q1Q1b/R1p1BPp1/1p2Nr1n/rkP1Rqn1/2p2N2/R4BR1/1BbB2K1 w - - 0 1 illegal: Other
N2N1n2/b1B1p1p1/2B4R/2q2bPB/QN2r1Qp/2PQN1R1/1B1pb3/K2nk3 w - - 0 1 illegal: No proof kernel forced: wxDB
6KR/ppN1np1p/2Q4B/Q2N1P1q/b2RNRBn/3BR3/3PN1kn/b1r5 w - - 0 1 illegal: No proof kernel
N4RQ1/p3N1pr/1q1b2BQ/rk3p2/4p1PB/nn1P3B/N3Q2K/2Rr2BN w - - 0 1 illegal: No proof kernel
3BQ1nN/2n2p2/2Qp2R1/1B1Bp3/rp1q4/k1Pb1P2/1nRrBRQ1/N2R2K1 w - - 0 1 illegal: No extended proof kernel
3k3B/2r1p3/P3RNB1/B2nPb2/N2bp2R/2RK2qp/3BpQnQ/1QR2q2 w - - 0 1 illegal: Other
2bb2n1/r2NN3/1pK1BPq1/RqNn1QN1/3pR3/3RB1BQ/p1pP1R2/4k3 w - - 0 1 illegal: No proof kernel
1nR5/QrQ1p1bR/3nB3/b1p1Qp1p/K4BB1/1q1B3q/N1N1PPk1/2R2R2 w - - 0 2 legal: proof: b4 a5 d4 b5 a4 g5 axb5 c5 h4 a4 hxg5 d6 c4 Ba6 b6 Ra7 d5 Bh6 b7 Bg7 b5 Bf8 b6 Bb5 cxb5 Ra8 Qd4 Nc6 Qd1 Rc8 Ba3 Nb8 Bc1 Rc6 dxc6 Bg7 Ra2 Bh6 Ra1 Bf8 Kd2 f5 Kc2 Kf7 g4 Kg6 c7 h5 c8R d5 Qd4 a3 Kb3 a2 Bh3 Qd6 Nc3 Qg3 Ka4 Qe3 Nf3 Qd2 Ne1 Qd1+ Nc2 Qf1 Qe5 d4 Bf4 d3 Rc1 a1B Na2 Qd1 Rf1 Nd7 b8R d2 b7 Bc3 b6 Ba1 Qc7 Kg7 g6 Kf6 g7 Nh6 g8B Bc3 Bc4 Ba5 Bd3 Nf7 g5+ Kg6 Qe5 Bg7 Bg4 Nd6 Ra8 Qe1 b8Q d1Q b7 Qc3 Qc7 Nb8 Ra6 Rd8 Ra8 Rd7 Rh8 Nc6 Rac8 Nb8 Rh7 Ne4 Bc4 Qh3 Bd3 Nd6 Qb6 Na6 b8Q Rb7 Q8c7 Nb8 Qa7 Qe1 Qe3 Qc3 Qg3 Kf7 g6+ Kf6 Be5+ Kg5 Qe3+ Kh4 Bf4 Bd4 g7 Bf6 g8B Bg7 Bb3 Qh1 Bf3 Kh3 Bg4+ Kg2 Qe5 Qh3 Be6 Qb3+
2Rr3k/1pRp4/1P3Np1/q2Q3r/BQ1N3B/6n1/NQKP1pq1/NQ2n1Bb w - - 0 2 illegal: No proof kernel forced: wxLB
BN1RQ3/1bpN2p1/4qR1R/1r2Qp2/4n2B/3pn2k/1bP3NP/1BRNK2q w - - 0 1 legal: proof: f4 e5 d4 h5 dxe5 b5 g4 b4 gxh5 b3 e6 Nf6 axb3 Bc5 b4 Ng8 b5 Bf8 Kd2 Ke7 Ke1 Kf6 e7 Ke6 e4 Nf6 e5 Ng8 Be3 a5 Bc1 Kf5 e6 Kf6 Qd6 Ra6 Qd1 Ra7 Bg2 Ra6 Qf3 Rc6 Qf1 Rc5 Qe2 Re5 fxe5+ Kf5 Kd2 Kf4 Bf1 Kf5 Qd1 Ke4 Bd3+ Kd4 Ke1 Kd5 Bf1+ Kc5 e8Q d5 b4+ Kb6 e7 f5 h6 a4 e6 a3 h7 d4 Bg2 a2 Ne2 d3 Nf4 Qd4 Nc3 Qe4+ Qe2 Qb7 Nd1 Qa8 Qe5 Qa6 Ba8 Qb7 Ng2 Qa6 Bg5 Nh6 Bh4 Bb7 Rg1 Rg8 h8R Ng4 Rc1 a1Q Rh6 Ne3 Rf6 Nf1 Rh6 Q6a2 Rf6 Ka7 b6+ Ka6 Rh6 Nd7 b5+ Ka5 Rf6 Kb4 Rh6 Kc4 Rf6 Ba6 b7 Nc5 b8N Bb7 b6 Ne4 Nd7 Rh8 Qg6 Q1b1 e8B Ba3 Bf7 Rb8 Qh5 Bb2 e7+ Kb4 e8R Qe6 Rd8 Kc4 Nf4 Qa1 Rgg6 Qb1 Rh6 Qa1 Qa5 Kd4 Ng2 Qb1 Bg8 Qa1 Qe8 Qb1 Nc5+ Ke5 Qab5 Qe7 Ba2 Qe6 Nge3 Kf4 Nd7 Qa1 Ng2+ Kg4 Bb1 Kh3 Qe5 Ba6 Bd5 Bb7 Bc6 Ra8 Bd5 Ra5 Bc6 Rb5 Bd5 Bc8 b7 Qa8 b8N Bb7 Bc6 Qa7 Qg6 Qg1 Qe8 Qh1 Bd5 Ba6 Ba8 Bc8 Qg8 Bb7 Qe8 Ne3#
1KbNBR2/2b1Bb2/NQppQ3/1p1q1n2/3Q2R1/b1PPn1pk/2N1QB2/6B1 w - - 0 1 illegal: No possible last move
B2N4/1p2B3/1k4r1/1q2nNN1/1nppQ1R1/1PpP1p2/1rN1R1bQ/2BBK2R w - - 0 2 illegal: Other
Q4R1b/QQ2Np2/q1rRN1B1/1p2P1pN/2R1Kn2/1kBpN2r/3P2p1/n1Q5 w - - 0 1 illegal: Other
1K2b2B/bQ2B3/Q1B1rQR1/1p2rNp1/qPk1n1Pr/1N2b1nN/6RN/n2B4 w - - 0 1 illegal: No proof kernel
N2Nb1B1/5n1Q/nr3prR/bk5p/1B4N1/K1n1BPB1/3QRbRP/1rR1q3 w - - 0 1 illegal: No proof kernel
3Qn1k1/QQNNR1p1/2nq2Pp/1bQ2B1P/r5R1/r2qBK2/2B1Nb2/N3rn2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 Kf2 f5 b4 Kf7 g4 a5 d4 c5 e4 h6 h4 c4 g5 c3 e6+ Ke7 h5 c2 g6 f4 d6+ Kf6 d5 f3 b6 a4 b7 a3 e5+ Kf5 e7 a2 e8N Qd7 e6 Ra3 e7 Qe6 d7 Ra4 d8Q Qd6 b5 Qa6 d6 Ke6 d7 Qb6+ Be3 c1N Qd4 Rc4 Qc7 Qa6 d8Q Rc3 b6 Rd3 Ne2 Bd7 Qcc5 Bb5 Nd2 Nb3 Rh4 Nf6 Re1 a1R Rg4 Ra4 Bh3 Nc6 b8Q Rg8 Kg3 f2 b7 f1Q Qca7 Qf5 Qdc5 Qe5+ Kf3 Qd6 Qbc7 Rc3 b8N Rc1 Rf1 Re1 Qcb7 Qd3 Nd7 Qb6 Qc3 Qbd4 Qcc5 Qd6 Nb1 Rh8 Na3 Rg8 Nc2 Nd2+ Kg2 Ra3 Na1 Ra4 Rh1 Nf1 Rg1 Nd5 Kf3 Nc7 Nef6 Ra3 e8B Be7 Nd5 Bh4 R1g2 Bf2 Bf7+ Kf5 R2g3 Ne8 Rg2 Rf8 Bg8 Rf7 Rh2 Re7 Nc7+ Re5 Bb3 Ra4 Nd5 Ke6 Bc2 Ra3 Qdb6 Ra4 Nc7+ Ke7 Rhg2 Re6 Re4 Re5 Bf5 Re6 Rgg4 Re5 Nb8 Kf8 Nd7+ Kg8 Qba5 Rd5 Re7 Re5 Ne6 Ree4 Qd8 Ra3 Nc7 Rea4
BrQ2K1r/5p2/QQ1RNQqB/b3p1R1/b3nP2/1br1PN1k/2Rrn2N/5R2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 g4 Kd7 b4 h5 d4 e5 Kd2 a5 Kc3 c5 Kc4 a4 d6 Ke6 d7 a3 d5+ Ke7 d6+ Ke6 g6 a2 g5 Kf5 Kd5 Kg4 b6 h4 b7 c4 b5 c3 b6 c2 g7 h3 g6 h2 Bh6 c1R f4 Qe8 d8N Qd7 e3+ Kg3 Nd2 Rc7 Rc1 a1R Rc2 Qf5 d7 Qg4 Ngf3 R8a3 Ne6 Qg5 d8R Qe7 Bg2 Rb3 Qf1 Nc6 b8Q Qf6 b7 Ra2 Qa6 Nd4 Rd6 Rh7 Rf1 h1B Nh2 Rcc3 Ndf3 Bd7 Qc8 Ba4 b8Q Ne2 Qbb6 Be7 Qcc6 Bd8 Qcc8 Bc7 Qd8 Qf5 Qf6 Rbb2 Qb8 Ba5 Qbb6 Rca3 Kc5 Rb5+ Kc6 Rc3+ Kd7 Qg5 Ke8 Qg4 Qe7 Nf6+ Kf8 Ne4 g8Q Bb3 g7 Qg6 Qf6 Rb2 Rcc1 Rd2 Rc2 Ba4 Ke7 Rb2 Qgc8 Rb4 g8R Bb3 Qbc5 Rb8 Qcb6 Ba4 Kf8 Bb3 Ne1 Ba4 Bf3 Kh3 Rg7 Nc5 Bb7 Bd5 Ba8 Bdb3 Nef3 Ne4 Rg8 Qf5 Rg2 Qg6 Rg5 Rh8+
bkBRNB1r/N2npKQ1/1b3r2/1q3p2/q2NRPR1/4PQ1r/3R2N1/Q1r2n2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 Kd2 g5 Kd3 c5 Ke4 Kc7 Ke5 a5 b4 f5 h4 c4 b6+ Kb7 b5 a4 d6 c3 h6 c2 h5 a3 h7 a2 d5 g4 d7 g3 Ke6 g2 d6 Na6 h6 Ra7 Nf3 g1R Nh4 Rg3 Nd2 Nc5+ Kf7 Nd3 Ne4 Bg7 Nf6 Ne1 Ne8 Raa3 Rg1 Rgc3 Rg4 Be5 Ng2 Ka8 b7+ Ka7 b8N Qb6 Nc6+ Kb7 Na7 Qa5 b6 Kb8 b7 Rc6 d8N Bc3 d7 Nf6 Ne6 Rg8 h8Q Qc5 h7 Qb6 Bh6 Nf3 Bf8 Ba5 d8R Nh2 Rd2 Nd7 f4 Qb4 Qc3 Bb6 h8Q Qc5 Qcd4 Rh3 e3 c1R Ba6 Qb5 Qhg7 Rgh8 Qf3 Nf1 Rb1 a1Q Rb4 Qaa5 Qa1 Qaa4 Re4 Rd6 Nd4 Rdh6 Nf6 Kc7 b8R Bb7 Rd8 Ba8 Bc8 Kb8 Ne8 Rf6+
rQ6/1Q4p1/N1qb4/1RNB1p1N/BRK2P2/Q1r1kb2/4NnPB/Qqr2r1n w - - 0 1 illegal: No possible last move
r2N3Q/rqnk4/R2b1Q1b/2r1pn2/3pPQ2/2NPp1N1/2Q1R1bR/KNB2B2 w - - 0 1 illegal: Other
2rR1BN1/B4R1q/5NR1/bk1brnpQ/1p2b1r1/1P2p1P1/1RB4Q/1nQ1BK2 w - - 0 1 illegal: No proof kernel
3R1QKB/p1pn2b1/b1q3B1/PnNq2k1/2NQR1N1/1r3Bp1/3r1rP1/1B1N3Q w - - 0 1 illegal: No proof kernel
2r5/rqN3p1/3Q1bNR/4p1P1/BqnQ1BQ1/kb1BP1KQ/1R1N3p/N4qn1 w - - 0 1 illegal: No proof kernel
1N6/4RbQ1/1QNBr1Bp/p1Kn4/2p2nqQ/2PR1q1P/N2bQR1r/k5qN w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 Kf2 Ke7 Ke3 Ke6 Kd4 f5 g4 d5 e4 a5 b4 c6 g6 h6 g5 f4 h3 f3 b6 f2 g7 Bd7 b5 Bd6 g6 Qf8 b7 Nf6 g8Q+ Qf7 g7 Bc7 b6 Nh7 Rh2 Bc8 Qe1 Bd8 Ba3 Ra7 Bd3 f1Q Ne2 Qf4 Qh4 Nf8 Ng3 Ng6 Nc3 Bg5 Rd1 Ra6 Nh1 Nd7 b8Q Nf6 b7 Qg4 Na2 Rb6 c3 Rb2 Qh7 Re8 g8N Bc1 Rg2 Rd2 Qg7 c5+ Ke3 c4 Kd4 Kd7 e6+ Kc6 e7 Kb5 Re2 Ka4 Bd6 Kb3 Kc5 Kb2 e5 d4 e6 Ka1 Qa7 Qf8 b8N Nd5 Qb6 Qff3 Rg2 Ngf4 Bg6 d3 Re2 Rf8 e8Q Rf6 e7 Be6 Rg2 Re2 Rd2 Bf7 Rg3 Rh2 Rf2 Qg2 Rgf3 d2 Rd3 d1Q Qc8 Qd2 e8R Qdd1 Ne7 Qe4 Nec6 Qdg1 Re7 Bd2 Qe6 Qef3 Qe2 Re6
NRrB2qn/2R3QR/5n2/2qp2pQ/1B5n/3P1NbB/1RpKb1P1/2N2krN w - - 0 1 illegal: No proof kernel
1QK3B1/q2pp3/Bn1B3R/1Q1R1q2/R3NbQp/3P1r2/nQR1P3/1br2kNn w - - 0 1 illegal: No proof kernel
B4k1B/1pQQ1b1p/RP6/3r1n1n/3R3P/brb4R/qB1N1p1b/QN1R1B1K w - - 0 1 illegal: No proof kernel
RN2r1N1/p1p4Q/Q1N4b/qB1n2R1/PpPB3B/nb3rn1/3R3B/K3n1Nk w - - 0 1 illegal: No proof kernel
B1RQ1Q2/1NQ2Nrp/2n4p/1kpb2N1/1nr1q1pP/2BNR2Q/2P4K/3r1Bb1 w - - 0 1 illegal: Other
qR5R/BQB5/3rq2Q/2p4p/2P1n2Q/n1r2Kb1/k1p2QpP/NbRRN2B w - - 0 1 illegal: Other
3k2B1/p1p4r/QBrpq3/b2R2p1/1q1Nn2B/2nP2BQ/1QQ1R1PN/3bK1N1 w - - 0 1 illegal: No proof kernel
1R1q3Q/1B1N1n1r/pR1n1K2/NpbpRb1B/N1pQ1rBN/P1P1B3/1pk5/8 w - - 0 1 illegal: Other
1B1NK1kN/Q1bNn1N1/3r3n/R2R2rB/2Rbr1PR/5n1P/1n4R1/1R4n1 w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 b5 cxd5 b4 h3 b3 axb3 Qd6 b4 Qd7 b5 Qd8 Qa4 g5 Na3 h5 Qb3 h4 Qc2 g4 Nb1 Qd6 Qd1 Qb4 Bd3 g3 Bf1 Qg4 Qc2 Qg7 Ke2 Be6 Ke1 Nf6 Qd1 Bf7 Ke2 Bh5+ Ke1 Bg4 hxg4 h3 Na3 h2 Nb1 Ng8 Nc3 Qh7 Nb1 Qh3 gxh3 Rh5 Ra4 Rh6 Ra1 Rh8 Ke2 Kf7 Ke3 e5 Ke4 a5 f4 c5 d4 g2 b4 a4 f6 c4 Kf5 a3 b6 e4 b5 a2 d6 c3 d7 e3 d8R c2 d5 e2 b7 e1N d6 Ra6 d7 Ra3 b6 Rb3 Nd2 Rg3 Nc4 Rh7 Ne3 Rf3 Qd4 Bg7 Ne2 Nc6 b8N g1B b7 Bh8 Qa7 Bf2 Rg1 h1R Rg2 Bg1 Kg5 Nh6 f5 Rh2 Nf4 Rg7+ Ng6 Nb4 Bb5 Rf1 Ba3 Nc6 Bd6 c1N Rc8 Ncd3 d8N+ Kg8 f7+ Kh7 Kf6 Rh1 f8R Nf2 Nd7 Nb8 Rc4 Nc6 b8R Nf3 Rd1 a1N Rd5 Nd3 Rf7 Na5 Ke7 Nc2 f6 Nc6+ Ke8 Rd1 Nf5 Ne7 Ba4 Re1 Rb1 Re4 Bb8 Bd4 Rf8 Bb6 f7 Bc7 Bc6 Rg8 Ng7 Ng1 Ra5 Ne2 Bd5 Nef4 Nf5 Rd1 Nb7 Ne2 Nd8 Nce1 Be6 Bc3 Nh8 Ng1 Bd5 Rg6 Rg8 Rd6 Rg5 Nef3 Rh5 Nb2 f8R Rdd4 Rh4 Bb4 Bf7 Bc5 Bh5 R4d5 Ng7 Rg5 Rf5 Kg8 Rd5 Bd4
1B3N1n/r4n2/N4B1B/n1Q1PK1n/1rRR1P2/4Bnn1/1NB1q3/1NB1kq2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 d5 cxd5 Kd7 a4 Ke7 axb5 Ke8 Nh3 f5 Nc3 e4 Ra2 Bd6 Nb1 Be5 fxe5 f4 Ra1 f3 Kf2 Bg4 Ke3 f2 Ng1 Bf3 exf3 Ne7 Ke2 Ng8 h4 Ke7 Ke3 g5 b4 a5 d4 c5 h6 a4 f4 a3 h7 c4 b6 c3 b5 c2 b7 g4 d6+ Ke6 d7 Kf5 b6 g3 d5 g2 d6 a2 h5 Qc7 d8N Ne7 h6 Qc3+ Bd3 f1Q d7 Qc4 Nh3 g1N Ne6 Rc8 h8B Nf3 d8B Kg4 h7 Kg3 Bg7 Ng5 h8B Nd7 b8B Nf6 b7 Nh5 Nf2 Ra7 Bb6 Ng6 Bh6 Nf7 Bf6 Ngh8 Nf8 Qa6 Kd4 e3 Ke4 e2 Kf5 e1N Bbe3 Nf3 Be4 Qfe2 Nd3 Rc4 Nb2 Rb4 Qd5 Kg2 Rh2+ Kf1 Qc5 Ke1 Rf2 Qf1 Rd2 Qae2 Rd4 Qh1 Nd2 Qhf1 Rb1 a1N Bd3 Nb3 Ra1 Qef2 Ra4 Q2e2 Nb1 Rb5 Rac4 Na5 Bd6 Rb4 b8N Ng6 Na6 Ngh8 Nd1 Qff2 Bb8 Qff1 Ba3 c1N Bc2 Qef2 Bb2 Ne2 Bbc1 Qh2 Nb2 Neg3+ Kg4 Nh1 Kf5 Qhf2 Qd6 Q2e2 Qc5 N1g3+
1R3NnN/k2NKB2/1r1B2b1/1RrNNQ1b/Pq6/3p3N/Pr6/n2R1q1R w - - 0 1 legal: proof: h4 c5 f4 f5 e4 g5 hxg5 a5 exf5 e6 d4 a4 dxc5 a3 bxa3 Ke7 g4 Ra4 g6 Ke8 g5 Nf6 g7 Ra5 a4 Be7 g6 Ra8 Rh4 Ng8 Rh1 Bg5 fxg5 Qe7 Kf2 Qf6 Ke1 Qd8 Ke2 d5 Kd3 Kd7 Kd4 Kc6 Ke5 b5 c4 Kb7 c6+ Kb6 f6 h5 f7 b4 f8N b3 c5+ Ka7 c7 b2 c6 h4 Qd3 h3 Qf5 d4 Bf4 h2 Nh3 Qf6+ Kd6 Rh6 Nc3 b1Q Nd5 Qb3 Bc4 d3 Rad1 Bd7 c8R Be8 c7 Na6 Rb8 Bd7 c8R Qb4+ Rc5 Be8 Bb3 Bf7 Kd7 e5 Rcb5 e4 Bd6 e3 Bc4 Ne7 g8N e2 g7 e1R g6 Re2 Bb3 Qa1 Ngf6 Rb2 Ng4 Ng8 Ne5 Nc5+ Kd8 Qc1 Bc4 Nb3 Kd7 Nf6+ Ke7 Na1 g8N Rh5 g7 Bg6 Nh6 Ng8+ Kd7 Qf4 Nhf7 Qf1 Nh8 Rh6 Ndf4 Bh5 Bf7 Re6 Nd5 Rg6 R8b6 Rc8 Rb8 Rc5 Ke8 Ne7 g8N Rh6 Ngf6 Ng8 Rg1 h1B N6d7 Be4 Rh1 Rf6 Bc7 Rb6 Bd6 Bg6 Kd8 Bf3 Ke8 Bfh5 Kd8 Nf6 Ke7 Ng8+
BNb3K1/2BPbrP1/R3r3/1p3R1B/2Q1q2n/1N3N1N/bN1q3N/n1B4k w - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 d5 cxd5 c5 bxa5 g4 d4 g3 dxc5 Nd7 hxg3 Kf7 g4 Ke8 g5 Nb8 Ke2 Kd7 Kd3 e5 Ke4 b5 f4 h5 g4 h4 a4 h3 a6 h2 d6 Kc6 a5 Nd7 f6 Rh4 Kf5 e4 Ke6 e3 Kf7 e2 g6 e1Q g7 Qg3 g5 Qa3 f5 Qa2+ Qb3 Qa4 g6 Be7 a7 Rh7 a6 Rh5 Nd2 Rh4 Ndf3 Qg4 Qc4 Rh7 Nh3 Qh4 Be2 Qe1 Rf1 Nb8 d7 Kc7 c6 Kd6 c7 Nc6 Bd1 Bb7 c8N+ Kc7 Nd6 Rc8 a8N+ Kb8 Nc7 Ka7 Ra2 Kb6 a7 h1B a8B Na5 Na6 Bc6 Nb8 Nb3 Ra6+ Kc7 Rf2 Qd2 Rf1 Bf8 Be2 Rh6 Rf2 Ne7 g8N Na1 g7 Rg6 Nh6 Bg2 Ng4 Qe8+ Ke6 Rh6 Ngh2 Qg6 Rf1 Qh7 Kf7 Ng6 Rf2 Nh4 Bd1 Qg6+ Kg8 Qg4 f7 Qe4 f6 Be7+ f8B Rg6 f7 Re6 Qa4 Bd5 Nc4 Bh1 Nb2 Ba2 Nd4 Rd8 Rf5 Re8 Ndf3 Rf6 Ra5 Kd6 Qc4 Re6 Ne5 Rd8 Bh5 Rc8 Ra6+ Rc6 Qe2 Kd5 Qf1 Kd4 Qc4+ Ke3 Nef3 Rf6 Na4 Rce6 Nb2 Bd8 Bb4 Be7 f8N Rf7 Bd6 Bg2 Bc7 Bh1 Nhg5 Kf2 Nh3+ Kg2 Nhg5 Rg6 Nfe6 Rgf6 Nc5 Re6 Ne1+ Kg1 Nb3 Bf3 Nh3+ Kh1 Rd5 Qee3 Rg5 Bb7 Nef3 Qe4 Rf5 Bc8
1qb5/B2B2k1/4nN1b/2Pp2n1/1N1b3P/B2Rr2R/BQ1B2bR/1K2Rr1B w - - 0 1 legal: proof: d4 b5 h4 g5 e4 h5 a4 f5 exf5 c5 axb5 Qc7 dxc5 Qf4 hxg5 h4 g3 h3 Bd2 Bh6 Bc1 Qh4 gxh4 Bf8 c6 Kf7 Kd2 a5 c4 e5 Kc2 a4 b4 d6 f4 a3 c7 e4 g6+ Kf6 b6 e3 b7 e2 b5 e1Q g7 h2 b6 a2 Nd2 Ra7 Nh3 Rh6 Nf2 Kf7 f6 Nd7 b8B Qe4+ Nd3 Qf3 b7 Rg6 f5 Rg4 Qe2 Qc6 Bg2 Qf3 Ne4 Nh6 g8B+ Ke8 f7+ Ke7 f6+ Ke6 c5 Rg7 Ba3 Qf2 Rae1 a1B Kb1 Ra4 Ba7 Rg4 b8R Rg6 Rb3 Qg3 Bf3 Ra6 Nb4 Bd4 Qb2 Qe5 Rbe3 Rg1 Rd3 Rf1 Bg2 Bg7 f8B+ Nf7 Be7 Bh6 Bf8 Bd2 Bh6 Nf8 Be3 Kf5 Bg5 Kg6 Bf3 Nh6 Ba2 d5 f7 Re6 Bf4 Kg7 Bg5 Nd7 f8R Nf7 Re8 Bf4 Nf6 Nf8 Be4 Bc1 Ree3 Qd6 Rh3 Qb6 Be3 Qb8 Bg2 Re4 Re5 Ne6 Bg5 Ba6 c8B Ree1 Bd7 Bc8 Bd2 Re4 Bc3 Bh6+ Be1 Nfg5 Bf3 Rf2 Bd2 Ree2 Re1 Rf1 Bh1 Re4 Rf5 Re5 Rf2 Re3 Be4 h1B Re2 Bf3 Reh2 Bg4 Bg2 Bf3 Bh1 Bg2
3B4/4bnr1/1R6/3NNR2/2R2r2/B2p2Pr/1R1PrbK1/kqrBQRBR w - - 0 1 legal: proof: g4 c5 e4 f5 exf5 b5 b4 g5 bxc5 b4 f4 Nc6 f6 Nd4 f5 Ne2 a3 Ng3 axb4 Qb6 b5 Kd8 f7 Kc7 Be2 Bb7 Bc4 Be4 f6 Bf5 gxf5 g4 Be2 Qb8 Bf1 Qd8 Nf3 Ne2 Ng1 g3 Ba3 g2 Bc1 Ng3 hxg3 Rb8 Qe2 Rc8 Qd1 Ra8 Kf2 d5 c4 h5 c6 Kd6 b6 Kc5 c7 Kb4 c8R e5 b7 a5 b8B e4 c5 a4 c6 d4 c7 h4 Be2 d3 Nc3 a3 Qe1 Kb3 Nf3 g1B+ Kg2 a2 Ne5 e3 Ba3 Rh7 Ba7 Be7 f8R Bf2 f7 Rg7 f6 Nh6 Rb8+ Kc2 c8R Qb6 Rf1 Qb1 Rb6 Rb8 Bf3 e2 Rc4 Rd8 Rh1 Rd4 Rfb8 Rf4 f8B Nf7 Rf1 Ng5 f7 h3+ Kh1 h2 Kg2 h1R Bg4 Bd8 Bfe7 Rh3 f8R Nf7 Bg5 Be7 Bf6 Qb5 Nd5+ Kb3 Rd1 a1R Rh1 Ka2 Bh4 Nd6 Rf5 Rc1 Bg5 Qb1 Rf1 Bf8 Bd8 Ka1 Rb2 Nf7 B7c5 Bd4 R8b6 Be7 Bf3 Bc3 Bg1 Bd4 Qf2 e1R Bh5 Ree4 Qe1 Rc2 Rc1 Bf2 Bd1 Re2 Rcc6 Rh8 Rh6 Rc6 Rh1 Rh3 Rc4 Rc8 Ra4 Rc2 Rc4 Rc1
B5k1/pq3rNp/2B5/4nbr1/BRr1PRQ1/1Bn1K3/1P1BnR1N/5B1R w - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 g5 h4 b5 axb5 d4 hxg5 c6 b6 d3 cxd3 Ke7 d4 Ke8 d5 Bc5 Qc2 Bd6 Qd1 Bc7 bxc7 Kf8 Qc2 Ke7 Qd1 Ke8 Kf2 Kf8 e4 f5 g4 c5 d4 c4 g6 c3 g5 c2 g7+ Kf7 e6+ Ke8 e7 Kf7 e8B+ Ke7 g6 f4 d6+ Kf6 d7 f3 d5 Ba6 c8B Nc6 d6 Nd4 Nh3 Rb8 Ng5 Qe7 d8R Be2 d7 Qf8 Ne6 Qe7 Ke3 f2 Bd2 c1N Ra4 Ncb3 Rb4 Bh5 Qg4 Rb6 Bb7 Na5 Bc6 Rb5 Rb8 Qf7 d8R Ne7 g8B Rg5 g7 Ne2 Ba8 Bg6 Bec6 Bf5 Rf8 Kg6 Ba4 Nac6 Rbc8 Ne5 Rc2 Qe8 Bf7+ Kf6 g8B Qb8 Ng7 Qb7 Bfb3+ Kg6 Bgc4 Rg8 Rf7 Rc8 Bd5 Rc5 Bdc6 Rc4 Bh3 f1R Rf8 Bd7 Rf4 Bf5 Bg2 Rf2 Bf1 Kf7 Bc1 Nc3 Nd2 Kg8 Nf3 Ne2 Nh2 Nd5+ Kd2 Ndc3 Ke3 Ng3 Re2 Nf7 Bd2 Ne5 Bg2 Rf1 Ref2 Nge2 Bh3 Re1 Bf1 Rd1 Be1 Rd7 Bd2 Rf7
n3R2N/pbK5/1Pb3qr/R1pkNBR1/4N1QP/r3R2N/4R1R1/2Br3q w - - 0 1 illegal: No possible last move
R1R1br2/1nBp2N1/B2P4/3k3q/r2NN3/PpQNBnb1/3p4/KB2NN2 w - - 0 1 illegal: Other
2B2q2/k1KR2R1/3NRrRp/P1nr2bN/n1p3N1/N3p3/rQ4P1/B2R1R2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 g5 bxa5 f5 h4 f4 hxg5 f3 exf3 Bg4 fxg4 Nd7 f4 Nb8 f5 Ra7 Ba3 Ra6 Bc1 Ra8 a6 Kd7 Ke2 Kc8 Ke3 b5 Kf4 c5 Ke5 b4 a4 b3 d4 h6 g6 e6 d6 b2 d5 Qh4 g5 Bg7+ f6 Qc4 a5 Qg4 d7+ Kc7 d8N Qh3 d6+ Kc8 a7 Rh7 d7+ Kc7 Qb3 Qh5 Nb7 Qh3 d8R Qf3 Ba6 c4 Ne2 Qg3+ Nf4 Kc6 Re1 Ne7 Na3 b1R Bb2 Qf2 Nh5 Bh8 g7 Qc2 g8N Qf2 g6 Rf7 g7 Rf8 f7 Rc1 Ngf6 Rc2 g8R Nd5 Rg6 Nb6 Rad1 Na4 Ba1 Ra2 Qb2 Qc5+ R8d5 Rd8 f8R Nd7+ Ke4 e5 Ng4+ Kc7 Rff1 Bf6 Rd6 Qf2 Kd5 e4 Rg7 Bg5 Rdg6 Kc8 Kc6 Ndc5 Re2 Rb8 a8R Qf8 Red2 e3 Rdd6 Rd7 Ra7 Ra8 Rdf6 Rf7 Re6 Kb8 Nd6+ Nb7 Ndb5 Nbc5 Rae7 Ra7 Bc8 Rf6 Rb7+ Ka8 Rbf7 Ra6+ Kc7 Rd6 Rd7 Rd5 Nd6 Ka7
1b3B1N/3q1b1N/2r3nB/3B4/Pn4B1/rBR1BQb1/2K1PqRq/N3rk1N w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a4 Ke7 d4 f5 Kd2 c5 h4 g5 e6 Kf6 d6 b5 h6 c4 e7 b4 e8B g4 d5 Ke5 h5 Kf4 h7 Kg3 a6 Kf2 h6 c3+ Kc2 f4 a7 g3 d7 g2 d6 f3 Na3 Be7 Qd5 Qa5 d8N Bh3 d7 Qa6 Rh2 Qb5 Bf7 Nc6 Ne6 Rc8 a8B Bd6 d8B Bb8 Nf8 Be6 Bdg5 Nge7 Nh3+ Ke1 Qd3 g1Q Nf2 Ng6 Rg2 Qh2 Nh1 f2 Bge3 Bc4 Bg8 Bf7 Qe4 Qb7 Qf3 Qd7 Rb1 Bg3 Rb3 Bb8 Rg3 Rc7 Bh3 f1Q Bg4 Qff2 Rg2 Kf1 Bb7 Nce5 Bcd2 Nd3 Bd5 Rc6 Bc1 Be8 B8e6 Bf7 Bcd2 Rg8 h8B Rg7 h7 Bg3 Kb1 Rg8 Bg7 c2+ Ka1 c1B Kb1 Bb8 Rc3 b3 h8N b2 Kc2 b1R Nh7 Bb2 Beh6 Re1 Bf8 Ba1 Bde3 Nb4+ Kb3 Bb2 Nc2 Ba3 Na1 Bc1 Bb6 Bcf4 Be3 Bg3 Kb2 Nf4 Kb3 Rg5 Kb2 Ng6 Bb3 Rh5 Bed5 Rh3 Qf5 Be8 Bec5 Rh4 Bd1 Qg1 Rb3 Rh3 Qf4 Bh4 Kc1 Re3 Qf3 Bf7 Kb1 Rd3 Bce3 Bhg3 Ra3 Rd2 Rc3 Ra2 Kc1 Ra3 Kb2 Na2 B1b3 Qh2 Kc2 Nb4+
RRbR1n1b/Q1N2k2/7K/P2Rbr2/2PNB1q1/4BRr1/1r4N1/Rn1N2qn w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 e5 Ke3 b5 f4 d5 c4 g5 a4 g4 h4 b4 f6 g3 c6 b3 a6 g2 a5 e4 h6 b2 a7 Rh7 f5 d4+ Kf4 e3 Kg5 d3 c7 e2 h5 e1B Nc3 b1R Nge2 g1N Be3 d2 Nf4 Rc1 Bg2 Rh8 h7 Kf7 h6 Bc5 Rh5 Ba3 Be4 Qf8 Ng2 Bg3 Qf1 d1Q Qf2 Qd7 Nd1 Ne2 Qg1 Nc3 Qf2 Ba6 c8R Nb1 Rd8 Ne7 Qg1 Qfe8 Qf2 Rf8 h8R Bc7 h7 Bc8 Kh6 Be5 Rg8 Bab2 h8R Bbd4 Rg3 Rc3 Rf3 Qe6 Qg1 Nd7 Rg8 Rb8 a8N Rb2 Nc7 Bb7 Ra8 Qb8 Rhg5 Qa7 Qf2 Rb8 Rd8 Ba6 Rh5 R8b5 Rdb8 Bc8 Rg5 Kf8 Rh5 Qg8 f7 Qg4 Qg1 Bh8 Rg5 Bde5 Rh5 Ng6 Rg5 Ke7 f8R Nh4 Rd8 Nf8 f6+ Kf7 Rh5 Bg3 Rhd5 Be5 Bc1 Qf2 Bd2 Qe1 Qa7 Qg1 Bf4 Nhg6 Bc1 Nf4 Be3 Nh3 Na6+ Ke6 f7 Nf2 Nc7+ Ke7 Nh4 Nh1 Ng2 Nd7 f8N Ra3 Nf4 Kf7 N8e6 Nf8 Ng2+ Kg8 Bf4 Kf7 Nd4 Rc5 Rf1 Rg3 Rf3 Rcb5 Be3+ Bef6 R5d6 Rf5 Rd5 Be5
1N3BBQ/2K2B2/3r4/bb2n1Nr/BRb2BnB/N1N2rq1/2P1P3/2Rrn1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 Kg4 h4 Kg3 b4 Kf2 c6 f5 e6 a5 b6 g5 e7 g4 Kd6 g3 c7 g2 b5 a4 b7 f4 b6 f3 h6 a3 h5 a2 h7 Bh6 e8B Bg7 h6 Ra3 Rh4 Nf6 Bf7 Qg8 Qd4+ Re3 Na3 Nc6 b8B Ne5 b7 Nfg4 Bb2 Bf6 Rc1 a1R Bc3 Bd8 Bb4 Rb1 Nh3+ Kg3 Nf2 g1N Bh3 Kh2 Ne4 f2 Nc3 f1B Bc5 Ngf3 Bb4 Kg1 Bg2 Nfh2 Bc6 Nhf3 Ba4 Ne1 Bc5 Qg5 Bb4 Bh3 Bc5 Rf8 h8B Bg2 h7 Bc6 Bg8 Rf3 Bf6 Bb5 h8N Bc4 Nf7 Rb6+ Bc6 Qf4 Ng5 Rh3 Be7 Qg3 Bb4 Nf2 Rf4 Nfg4 Bf8 Rh5 Be7 Nd3 Qh8 Rf3 Bf8 Nde5 Ba5 Rb2 Ba4 Bb5 Rb4 Rb1 Kc5 d5 Kd6 Be6 c8B d4 Bac7 Ba2 Bce6 d3 Bef7 d2 Ba5 Bac4 Bac7 Bf6 Bd8 d1R+ Kc7 Be7 Nge4 Bc5 Bh4 Be7 Ng5 Bd8+ Kc8 Ba5 Bc7 Rf6 b8N Rb6 Bcd6 Rb2 Kc7 Rb3 Na2 Rf3 Nc3 N5d3 Bf4 Nde5 Ra1 Rd5 Rab1 Rd1 Rc1 Rbd6+
2NqNn1B/5Rqn/1N1NQ2N/1b2rBB1/2bkP2R/5PK1/N3b1b1/b3B2r w - - 0 1 illegal: No proof kernel
1k6/1r1BRn2/rr1RnBB1/2N5/qb3Q1N/nrRR3B/2P1R1bP/Rq4K1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 g5 b4 f5 e4 d5 e6 a5 e7 Kd7 e8R Kc7 c6 d4 h6 f4 h7 f3 e5 a4 e6 a3 e7 d3 Bb2 g4 Qc1 d2 Bf6 d1R Nc3 a2 Ne4 Qd3 Nc5 Qa3 Bh3 Nd7 b6+ Kb8 b5 Rd3 b7 Rb3 Qf4+ Ne5 Rd1 a1N Rd3 g3+ Kf1 f2 Nf3 Qa5 Nh4 Ra6 Kg2 f1R c7+ Ka7 b8R Nh6 Rc3 Qa4 Rb6 Nc4 Rd6 Nf7 b6+ Ka8 Red8 Rfb1 e8B Na3 b7+ Ka7 b8R Bb7+ Bc6 R1b2 Kg1 g2 c8B Rbb6 Bf3 Nb3 Bcd7 Nd4 Bh5 Ne6 Bg6 R2b3 Rbc8 Rg8 h8R Rg7 Rc7 Be7 Rhe8 Bf8 Bc8 Kb8 Rdd3 Rh7 R8d6 Bd5 Rce7 Rg7 Kf2 Be4 Ra1 g1Q+ Ke2 Qb1 Kf2 Bg2 Bd7+ Ned8 Re2 Rh7 R8e7 Ne6 Qc1 Bh6 Kg1 Bd2 Rc4 Bb4 Rcc3 Rh8 Qf1 Rc8 Qc1 Rc7 Qf1 Rcb7 Qc1 Qa2 Qf4 Qb1+
1b2Bk1b/2BP1q2/4R3/BRqN2Rb/2N4r/r2Rnn2/B2B2PB/n1K1Qn2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 h5 f4 c5 d4 e5 Kd2 a5 b6 h4 g6 a4 f6 e4 b7 h3 f5 c4 f7+ Ke7 g7 a3 f6+ Kd6 b5 a2 b6 h2 Nc3 Bh3 Nf3 Bg4 Rb1 a1Q Ne5 Qc8 Rb5 Qe8 Qe1 Ne7 g8B Bg7 f8R Nd7 f7 Nf5 b8B+ Ke7 b7 Qa5 Bc7 Bf3 b8B e3+ Kc2 e2 Bd2 Nc5 Kc1 Qd7 Rd8 Bh5 f8R Ne3 Rf5 Qe6 Rd6 Qf7 Rg5 Kf8 Re6 Qb6 d6 Ra3 Rg1 h1N d7 Ng3 Nd5 c3 d8B c2 Nc4 Rh6 Rh1 Bh8 Rh3 Qa7 Bca5 Rh7 Bdc7 Nb3+ Kb2 Na1 Kc1 Qf2 Bf7 Qc5 Be8 Qf5 Bdc3 Qf7 Bd2 Ngf5 Bh2 Ng3 Bbc7 Rh6 Nf4 Rh7 d5 Rh6 d6 Rh7 Qd1 e1N d7 Nf3 Qe1 Rh6 Bd3 Ngf1 Nd5 Rh7 Ne5 Rh6 Bc4 Rh7 Ba2 Rh6 Kb2 c1B+ Kb1 Bb2 Nc4 Bbe5 Kc1 Bg3 Rh4 Bd6 Rd4 Rh7 Rd3 Bf4 Bd8 Bb8 Bac7 Bg4 Bca5 Rh4 Bdc7 Bh5
1K1B1nBB/N3rnb1/2BN3B/4B2k/Pr2q3/3bN1Q1/n4P1p/1qRNb1R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 c5 Kf4 b5 Ke5 h5 a4 e6 g4 c4 d4 b4 a6 c3 g6+ Kg7 g5 h4 d6 h3 d5 c2 d7 h2 a7 b3 d6 b2 Nd2 b1Q Bb5 Ne7 f6+ Kg8 g7 Kh7 g8N Kg6 f7 Nf5 Nf6 Ng3 Qg4 Rh6 Nd5 Qe8 d8B Nf5 d7 Be7 f8B Qf7 Ne3 Rh5 Bg7 Ng3 Bc7 Nf5 d8B Nd6 Bh8 Ba6 Ndc4 Qf3 Qg3 Bf8 Bc6 Rh7 Ne2 Re7 Rg1 Kh5 g6 Bb5 g7 Qg2 Bd2 c1N g8B Na2 Nc3 Qh1 Ncd1 Qhe4+ Kf6 Nf7 Nd6 e5 Bc1 Rd7 Ke6 Bg7 Bd2 Qg2 Bc1 e4 Kd5 Qf3 Kc5 Qh1 Kb6 Re7 Kb7 Nd7 Bd2 Rc8 a8N Nf8 Nb6 Rb8+ Ka7 Qf3 Nbc8 Rb6 Ka8 Qf5 Na7 Qg6 Nef5 e3 Bb8 e2 Bh6 e1B Nfe3 Qbe4 Rc1 Qb1 Ndc8 Qge4 Be5 Bc4 Nd6 Rb4 Bhf4 Bd3 Bh6 Bb5 Kb8 Bd3+
1BB1b3/2r4R/3n2P1/PN3K1b/rBN2R2/QqB1p1bB/n1q4R/RB3qk1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 g4 Kd4 a4 b5 a6 h5 d6 c5 g6 h4 d7 c4 f6 e5+ Kf5 e4 f4 h3 g7 c3 g5 e3 g6 h2 a5 c2 f7 b4 a7 b3 Bh3 b2 Nf3+ Kd3 Na3 b1B Nd4 Qe8 Bb2 c1Q Qa4 Ba2 Bc3 Bb1 Ndb5 Rh7 Nc4 Qc2 Qa3 Bc5 f8B Nf6 g8B Rh4 Be6 Na6 d8B Qf7 Bc7 Nb4 Bb8 Ke2+ d3 Bb7 Bc8 Kf2 Bfd6 Ba2 Be7 Qd1 d4 Bf3 d5 Bh5 d6 Bd4 d7 Be5 d8R Qc2+ Rd3 Qd5 Bf8 Ne4 Bc5 Qb7 Rd7 Bb3 Rc7 Ba4 Rh7 Na2 B5b4 Rg4 Bc7 Rb8 a8B Qd5 Bcd6 Rb7 Bb8 Rc7 Bab7 Qdd1 Ba8 Bf6 Bd5 Bh4 Ba8 Bg3 Bc6 Ng5+ Be4 Qb3 Bb1 Ne4 Re1 h1Q Re2+ Kg1 Rh2 Nf2 Ke6 Qf1 f5 Ne4 f6 Qhg2 f7 Qgc2 f8R Rf4 Nd4 Be8 Nb5 Rf2 Rf4 Rd2 Kf5 Rd4 Nb2 Rdc4 Bd6 Rb4 Nc4 Ra4 Bdb4 Nd6+
3rN1B1/4b2Q/p1RBN1br/B1R1q1P1/b1q2N2/2Bq1B1K/BP6/n1k1N2n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kg3 h5 d4 f5 e4 c5 g6 h4+ Kh3 f4+ g4 f3 e6 Kf6 b6 a6 g7 f2 g5+ Kg6 b7 c4 e5 Kf5 d6 Ke4 d7 c3 d5 c2 d6 Nf6 g8B Ra7 e7 Ra8 e8N Qe7 e6 Qg7 d8N Be7 d7 Ng4 Na3 Nc6 b8B Na5 Ne2 Nb3 Nf4 Qe5 Bc4 Rh6 Bd2 c1Q Bc3 Ke3 Qc2 Qd2 Bd6 Qd3 Rag1 Na1 Ba2 f1Q+ Rg2 Qc4 Qh7 Qfd3 Rc1 Bb7 Rgc2 Bc6 Ng6 Ba4 Nf4 Bf8 e7 Nf2+ Kh2 h3 Ne6 Rc8 d8B Nh1 B8c7 Rd8 B7a5 Nf2 Kg3 h2 Kg2 Rf6 Kg3 Nh1+ Kh3 Rg6 N8g7 Rf6 e8B Rh6+ Bh5 Be7 Ne8 Ng3 Nb5 h1B Nbd4 Be4 Nf3 Nh1 Ne1 Bg6 Kg2 Bf7 Bf3 Bh5 Kh3 Qeb5 Bh8 Qe5 Rc3 Kd2 Bf6 Qcb5 Rc6+ Qb4 R1c4 Qbc3 Bg7 Kc1 R4c5 Qcc4 Bf6 Qee3 Bd4 Qe5 Bdc3 Bg6+
1n4Bk/N3r1RP/2Rr3p/1BR3B1/1RBb4/1P2qrn1/qBb1Nq2/1Q1BK3 w - - 0 1 illegal: No proof kernel
N1R1RqN1/R1NP4/RpBb3B/1PqnRr1r/b1kbN3/4R3/3Qr3/1nK5 w - - 0 1 legal: proof: e4 d5 c4 f5 exf5 h5 cxd5 h4 a4 h3 a5 b6 a6 Rh7 gxh3 Qd7 h4 Qc6 h5 Qb7 axb7 Rh8 f4 Kf7 b4 a5 h4 c5 d4 e5 Kd2 g5 h6 e4 f6 c4 h5 a4 f5 a3 d6 g4 d5 a2 b5 g3 h7 g2 h6 Ra4 d7 Nc6 d8N+ Ke8 b8R Kd7 d6 Ra8 f7 Ra6 f6 Nce7 Nc6 Ke6 d7 Kd5 Nh3 g1Q Nf2 Qh2 Bg2 Qe5 Rb7 Qg3 Rh3 Qg7 Ra7 Ra3 Re3 Bb7 Nc3+ Kc5 Kc2 Nd5 Qd2 Bd6 f8R Nge7 Re8 Qf8 f7 Ba8 Nd4 Kb4 Ne6 Bb7 Nc7 Rb3 Nb1+ c3 Ng4 Kc4 Na8 Rb2+ Kd1 Rb4 Nf6 c2+ Ke2 Ra4 Ng8 Nc3+ Ke1 Ned5 Re5 Nc7 Bh1 Bd5 Bf3 Be6 Bg2 N7d5 Ra6 Qb8 f8N Bf7 Ne6 Qf8 Bh1 Bh5 Nec7 Bd1 Ba3 c1Q Bb2 Qc2 Bc1 Qb2 Bf3 Qa3 Bg2 Qc5 Bf3 Ne2 Nc3 Ra3 Bg2 Ba4 Bh1 Nd4 Bg2 Nc2+ Kd1 Rb3 Rg3 e3 Ne4 Na3 Rf3 Nb1 Kc2 e2 Re3 e1R Rc3+ Kb4 Ra7 Qc6 Qd4+ Qc4 Nf2 Re3 Nf6 Nf4 Bc6 Nd5 N2e4 Qf7 Qd3 Rf8 h8R Qc5 h7 Re2+ Kd1 Qg7 Bh6 Rf7 Rc8 Qf8 Ng8 Rf5 Qd2 Rh5 Rd3+ Kc4 Rh3 Rf3+ Kc1 Rff5 Re3 Bc2 h8R Qf6 Rh7 Qf8 Rhe7 Na3 Rb1 a1B Ree8 Bd4 Ra1 Nb1 R1a6 Ba4
1q3Nb1/Bp2Q3/1RP1qRn1/3R2bK/kNn1PN2/2rn4/1RN1BrNN/2r5 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 f5 Kg3 g5 h4 d5 a4 Kd7 c4 Kc6 e4 g4 a6 d4 a5 d3 h6 d2 e6 Qd4 e7 Bg7 e8N Nf6 h7 Bf8 h5 f4+ Kh4 g3 h6 f3 a7 g2 a6 f2 Ra5 Ng4 Kh5 Qd6 Nh3 g1N Nf4 Bf5 Be2 f1R Ng2 Be7 Na3 Qe5 Nc2 Qc3 Nf6 Nd7 Rh2 Rab8 a8N Rbg8 a7 Qd3 Nb6 Qf3 a8R Nf8 R8a6 Nf2+ Ng4 Ng6 Nd5+ Kd7 c6+ Kd6 c5+ Ke6 c7+ Kd7 c8R Be6 Rcc6 Qb3 Rab6 Nf3 Ndb4 Bg5 Bb2 Bf7 Rf6 Rf8 Bd4 Nfe5 c6+ Kc7 Qc1 d1Q Qa3 Qe6 Rd5 Nfd3 Bc5 Rhg8 h8N Nc4 h7 Qe1 Be3 Qg3 Bd4 Rc1 Be3 Nh4+ Ng6 Rg7 h8N Bg8 N6f4 Ng6 Qa8 Rd7 Qe8 Rd8 Bd4 Ra8 Bg1 Ra3 Bf2 Rc3 Bd4 Ne7 Nhg6 Rf7 Nf8 Ng6 Nh3 Qge5 Nhf4 Q5d6 Ra6 Qd8 Ba7 Qb8 Rb6 Nf2 Rd2 Nd3 Rd1 Kd6 Qd8+ Kc5 Qe7+ Nd6 Rd2 Kc4 Rd1 Kb3 Rd2 Nc4 Rd1 Nc5 Rd5 Ka4 Rh1 Nd2 Rff5 Qd7 Nh2 Qe6 Nfd3 Ra1 Rb1 Nc4 Rb2 Rc1 Rf1 Rf3 Rf2 Rg3 Rf4 Rf3 Rf6 Rf2 Ndf4 Nd3
B2r2kq/1R4pN/1B1brnR1/1KNN2N1/r1B4P/3b1rB1/r3QPn1/3BB3 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 d5 Kb4 e5 c4 e4 h4 e3 b6 a5+ Kb5 a4 b4 a3 c6 a2 f6 d4 b7 e2 c7 e1R h6 d3 c5 d2 c6 Qd7 h7 Ra6 Nc3 Ra8 Nf3 Re4 Ne5+ Ke6 f7 Qd4 Nd7 Qe5+ Nc5+ Kf6 Rg1 Rc4 Rg6+ Ke7 Qe2 d1R Rb1 a1R Bd2 Bh3 c8B R8a2 c7 Nd7 b8B Ra7 Bb7 Qe6 c8B Bg2 Bc7 Nb6 Be1 R7a4 Ba8 Nd5 Bb6 Ngf6 Bd7 Qe3 Bg4 Rd3 Bh5 Rg8 h8N Re4 Rb3 Nf4 Nd5+ Kd6 Bf3 R1a2 Bg4 Be7 f8N Re6 Nh7 Rd8 Bh5 Ke5 Nf7+ Kf5 Bf3 Bd6 Nfg5 Qe5 Bh5 Be4 Ba5 Ree8 Qe3 Qe7 Kc6 Rdd2 b5 Ng2 Bc4 Rd3 Bd1 Rc3 Qe2 Rf3 Bc7 Bd3 b6 Bf4 b7 Qf8 b8B Qh8 Rb7 Re5 Rh6 Re6+ Kb5 Bg3 Bb6 Be5 Rh5 Kg6 Bd6 Ba1 Bg3 Be5 Nh3 Bc7 Rg5+ Kf7 Rg6 Kg8 N3g5 Bd6
R1b2Qn1/2Rb1NBR/KN3bpq/1rnnRPNB/NrPNN3/8/5b2/1k6 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 b4 e5 f4 a5 b6 d5+ Kb5 a4 c4 g6 f6 a3 f7 a2 c6 d4 c7 d3 b7 d2 h6 Bg4 c8R Ra7 f5 Be7 f8N Qd6 h5 Bh3 h7 Ra8 h6 Bg4 Nh3 Qc7 Nd7 Bh4 Nc5+ Kd4 Ne4 Na6 b8N Bf2 Nbc3 Bf3 Be2 Qg7 Na4 Nc5 Nhg5 Nb7 Nd7 Rb8 Rc7 Bg2 Bf3 Kd3 Ndb6 Qf8 Rb1 a1B Ka6 Bad4 Qg1 Kc2 b5 d1B Bh5 Bdf3 Rb3 Bc3 Ra3 Kb1 Bb2+ Bd1 Rh2 Bcd4 Re3 Qg7 Nf6 e4 Qe1 Bf3 Qb4 Bc3 Re2 e3 Nfe4 Bf6 Re1 e2 Qf8 Rd8 Rh3 Rd3 Rh4 Rb3 Rh2 Rb4 Rhh1 Ne7 Bc3 Rg8 h8N Bg2 h7 Qh6 Bb2 Rg7 Bd4 Ng8 Nhf7 Bf3 h8R Rh7 Ref1 e1N Be5 Nd3 Re1 Nf4 Re2 Be7 Bg7 Nd5 Nec3+ Kc1 Na8 Nd6 b6 Bc5 b7 Bd4 b8N Bf2 Re5 Bg4 Nc6 Bf3 Bg4 Nf4 Qc8 Qh4 Bf8 Bg2 Nd4 Bf6 Rce7 Nh6 Nc5 Qh5 Rh4 Ba4 Nd8 Kb2 Ra7 Rhb7 Ndf7 Bd7 N3a4+ Kb1 Bg7 R7b5 N8b6 Be4 Rf8 Ng8 Rc7 Bec6 Nce4 Bb7+ Ka7 Nd5 Bf3 Qg4 Rh7 Qh3 Rd8 Qh6 Bh5 Ba6 Rf8 Bb7 Qd8 Ba6 Qe7 Bb7 Ra8 Bbc8 Qf8 Nb7 Ka6 Nc5+
n2RB2N/1kbnn3/r2rPr2/BpP5/B4Qb1/1RB1N1BR/5R1B/4Kqn1 w - - 0 1 illegal: No proof kernel
rRRq3B/1nP1B3/1r1B2pB/6K1/1nnRQR1B/2k2P1N/n1B3b1/2bb2N1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 c4 a5 b4 a4 h4 e6 b6 g6 b5 a3 f3 d4 h6 d3 h7 d2 h5 a2 c6 Ba6 h6 Ra7 c7 Ra8 c8R Qd3 b7 Qa3 c5 Be7 c6 Qa5 b6 Nd7 b8B Ba3 b7 Nc5 Bd6 Qd8 b8R Ne7 c7 Nb7 Nc3 Nc6 Bd3 Ne5 Nce2 Nc4 Qa4 d1B Rh4 e5+ Kg4 e4 Nf4 e3 Nfh3 e2 Bc2 e1N Bg5+ Kf7 f6 Ke6 f7 Kd5 f8B Kd4 Bge7 Kc3 Kg5 Nd3 Rd4 Nb4 Qe8 Rg8 h8B Bb5 Rc1 a1N h7 Nb3 Bhf6 Rh8 Ra1 Nc1 Bh6 Nca2 Qc6 Ra6 Qe4 Rb6 Rb1 Re8 h8B Bd7 Kf4 Bf5 Bh4 Bb2 Kg5 Bc1+ Nf4 Bh3 Rb2 Nd3 Rb4 Bg2 Ra4 Nd2 Nfh3 Ndb4 Ra5 Rf8 Rf5 Nc4+ Rf4 Ra6 Qe6 Ra8 Qe4 Rf6 Be5 Rfa6 Bd6 Rb6
3N2rN/NB1k3n/1r2qn2/B3BR1Q/6N1/3pBRq1/Nb1P3P/rrb3NK w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 d6 b4 Ba6 b6 Nc6 b7 Rc8 b5 Ra8 b6 Bb5 cxb5 Nb8 Nh3 a5 f4 e5 Kf2 g5 Kg2 c5 h6 e4 h7 g4 f6 a4 f5 d5 f7+ Ke7 f6+ Kd7 Ba3 d4 Nc3 e3 Bb4 g3 Qh5 a3 Ba5 Be7 f8B a2 f7 e2 Bh6 e1R f8N+ Kd6 Ng6 d3 Be3 c4 Ne5 Qd7 Ng4 Na6 b8N Qc8 b7 Nc7 b6 Qe6 Nc6 Nd5 b8B+ Kd7 b7 Ba3 Be5 Ra6 Na7 Rb6 Rb1 a1R Na2 c3 b8N+ Kd8 Rd1 c2 Nbc6+ Kd7 Nd8 Bb2 Rb1 Rd1 Be2 Re1 Rf1 Rd1 Rf5 Rh1 Kf3 g2 Rf1 g1Q Rf2 Qe1 Kg2 Rf1 R2f4 Qh4 Bf3 Rfb1 Ng1 c1B Kh1 Qg3 Bc7 Nc3 Bb7 Nf6 Rf2 Nce4 Be5 Ng5 R2f3 Rg8 h8N Ngh7
3BnBB1/2Rb3P/nb1N4/1NB1R1pk/1P1N3r/1N1nB2Q/1n1q2q1/4rBK1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 b4 f5 h4 Kf7 d4 c5 e4 a5 d6 c4 d5 f4 h6 Kg6 d7 c3 b6 a4 h7 c2 d6 f3 e6 a3 e7 a2 e8B+ Kh6 e5 Be7 b7 Qc7 d8N Be6 h5 Nf6 d7 Bh3 e6 Qf4 Nd2 Na6 b8B Qe5 Nc6 Ra7 d8B Bg2 Bf7 Nc7 Bg8 Qd6 Nd4 Na8 Nge2 Bh3 N2b3 Nc7 Qd3 Nfe8 Be3 c1N Nb5 Na6 Ned4 Bg4 Qf5 Nd3+ Kg1 Nb2 Rc1 a1N Rc7 Nc2 Qd3 Rb7 Ba7 Ne1 Bc5 Qf4 Qc3 Ned3 Rh4 Bf6 e7 Bd7 Rh2 Rb6 Re2 Re6 Re1 Ng7 e8N f2+ Kg2 Re7 Ned6 Ne8 Re2 Kg7 h6+ Kg6 Qc4 Kh5 Qe6 Qf3+ Kh2 Qd5 Qf5 Re4 Qh3+ Rh4 Be6 Rg8 h8B Rg7 h7 Re7 Bg8 Re4 N4f5 Bd4 Bg7 Re6 Bf8 Re5 Bg2 f1Q Re1 Qe2 Kg1 Qd2 Bf1 Re6 Ba7 Bb6 Nfd4 Ba5 Bc5 Bb6 Re2 Qc6 Rf2 Re4 Rf5 Qb7 Re5 Qa8 Bf2 Re1 Be3 Qag2+
5BbR/k3pn2/B1bqR3/BP2nrBb/N2rBKR1/b2P3R/3NB3/Q6q w - - 0 1 illegal: No possible last move
1b1Rb3/Bp1nNRBR/BBn2P2/1N2r3/8/3q3R/kP1Q1KbB/r1Bbq3 w - - 0 1 illegal: No proof kernel
2K5/1n1R2nb/1p1BB1B1/Bkb1N3/2n2Nn1/2B1r3/nPN1BNP1/R1Q1q1b1 w - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 Qf6 cxd5 Qd6 h4 Qd8 a4 g5 hxg5 b6 a5 Na6 Qc2 Rb8 Qb3 Rb7 Qd1 Nb8 a6 Bb4 axb7 a5 Ra4 Bc5 Ra1 Bf8 Kf2 Kd7 Ke3 f5 Kd4 h5 e4 h4 d6 Kc6 e6 h3 Ke5 h2 d4 f4 g6 a4 d5+ Kc5 d7 c6 g7 a3 d6 a2 e7 f3 Ke6 f2 e8B Nf6 g8B Qc7 e5 Rh3 Nf3 Ng4 Bd2 Na6 b8B Nb4 Be2 f1N Na3 Nfe3 Qc1+ Nc4 Nc2 Kb5 Bg6 c5 Rd1 h1N Be1 Bb7 d8N Be4 d7 Ng3 Rd4 Qc6+ Bd6 Nf5 Rd2 Bd3 B8f7 Qe4 Rd1 Na6 Ba5 Nb4 Bg8 Bh6 B8f7 Ng7+ Ke7 Be3 e6 Bg1 Ne5 Nh5 Ke8 Re3 e7 Ng7+ Kf8 Qf5 e8N Qf1 Ke7 Qe1 Ne6 Bf5 Kd8 Be4 Rb1 a1N Nf4 Nb3 Be6 Na2 Kc8 Bf5 d8B Bd3 Bb4 Nba5 Ra1 Nb7 Nf6 Be4 Ba5 Bf5 Bh5 Bh7 Rd3 Nd2 Ne4 c4 Bg6 c3 Nf2 Nc4 Nb4 c2 Bf6 Qc3 Bde7 Qe1 Rd7 Re4 Bd6 Re3 Qd2 c1B Nc2 Rf3 Qd1 Be3 Qc1 Rg3 Ned3 Rf3 Bfc3 Bc5 Ne5 Re3
6nr/NBb1Bp2/n3k1B1/3Nq1r1/R1B2q1R/2R1R2r/nrR2PP1/K2R1Q2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 d5 axb5 Bb7 d4 Bc6 dxc5 d4 Ke2 Nh6 Ke1 Bd5 exd5 Ng8 Kd2 Kd7 c4 h5 Kc2 a5 b4 e5 Kb2 a4 b6 d3 c6+ Ke7 b5 d2 b7 h4 g6 e4 g7 e3 c7 e2 c8B e1R c5 h3 b6 h2 d6+ Kf6 d7 Rh5 c6 Rh6 c7 Rh5 Nh3 Qe8 d8R Ke5 Bc4 Na6 b8R Re2 b7 Nb4 Nf4 Ra7 Na3 Rh8 Nb5 Be7 Nd5 Bg5 Qf1 Ra5 Na7 d1Q+ Kb1 Qd4 Ba3 Na6 Be7 a3 Ra8 Bc1 b8R Bd2 Rb3 Bf4 Ra2 Rb2+ Ka1 Qe4 Rd7 Ke6 Bb7 Bg3 c8R Bc7 Rc3 Qf4 Rdd8 Qb5 Rd7 Qc5 Re8 Qcd6 Rdd8 Qde5 Rd7 Rb3 Rc2 a2 Rdd8 Rb2 Rd7 Nf6 g8B Rh3 Bh7 Ng8 Rg1 h1R Bg6 Rh8 Rdd8 R1h5 Rh1 Rg5 Rc1 Ra3 Rh4 Rab3 R3c2 Rh3 Rc3 Re2 Rc2 Rd2 Kb2 a1N Rd7 Nb3 Ka2 Nbc5 Ka1 Nd3 Bf8+ Ne7 Nc6 Nac5 Nb6+ Qd5 Rca2 Nc1 R8a4 Kf6 Na7 Ng8 Ree3 Qde5 Rdd3 Re2 Rd1 Na6 Nd5+ Ke6 Be7 Rd2 Rc2 Na2 Rcc1 Rb2 R1c2 Qee4 Ra5 Qfe5 Ra4 Q4f4
2NB4/1n1k3N/2Nr1pbB/4n1bP/pB1BN3/Rn4BP/2B4Q/rb2RqK1 w - - 0 1 illegal: No proof kernel
NBk4r/B1Br1p2/RpRr3B/1Q1bRnb1/3BBP1R/3N1n2/4KP2/5n1q w - - 0 1 legal: proof: g4 a5 c4 h5 gxh5 d5 cxd5 a4 e3 a3 bxa3 Nd7 a4 Nb8 a5 Qd7 Nc3 Qd6 Nb1 Qf4 exf4 Bh3 Bb2 Bg4 Bc1 Bc8 h4 Kd7 d4 g5 a4 c5 d6 e5 d5 e4 a6 c4 a5 g4 a7 g3 h6 e3 a6 c3 h7 g2 h5 e2 h6 c2 Rh4 Bg7 Nd2 Nc6 Ngf3 g1R Ra5 Rg4 Ne5+ Kd8 d7 Bf6 Bg2 Rg3 Nd3 Kc7 d8B+ Kd7 d6 Rh3 Bc7 Bg5 Bb8 Nd8 Be4 Ne6 Re5 Rf3 Nc4 Rg3 Be3 c1Q Nb6+ Kd8 d7 Qb2 Qa4 Rg4 Qb5 Qb1+ Kd2 e1N Ke2 Ne7 Bc5 Rg8 h8B Nc2 h7 Nf5 Bg7 Nce3 h8B Qh1 Bh6 Re8 B8g7 Rh8 Bd4 Rg1 Bf8 Rc1 Bfd6 Rc6 Bdc7+ Ke7 d8B+ Ke8 Qa5 Rd6 Qb5+ Bd7 Be7 Bc6 Bef8 Rd7 Bfc5 Nf1 B7d6 Rf8 Bbc7 Rc8 a8R Bd5 a7 Rd8 Rc8 Rh8 a8R N1e3 Ra7 Nf1 Na8 b6 Ra6 Be7 Bb8 Ng5 Rc6 Nf3 Bdc7 Rd6 Ba7 Kd7 Bb4 Kc8 Ba3 R6d7 Bad6 Bg5 Bcb8+ Kb7 Bdc7 Kc8 Rc4 Rd6 Rc6 R8d7
kB4Qn/1n3pp1/5q2/N3rBrR/R1N1RB2/R3KbP1/1BbbRRP1/1r6 w - - 0 1 legal: proof: d4 c5 dxc5 e5 a4 b5 axb5 Qc7 f4 Qb6 fxe5 Qd8 Ra2 Qg5 Ra1 Qg3+ hxg3 Kd8 Nh3 Ke7 Ng1 Ke8 Kf2 Kd8 e4 Kc7 c4 Kb7 b4 h5 c6+ Kc7 b6+ Kd8 e6 d5 c5 a5 e5 a4 e7+ Ke8 b7 h4 c7 Kd7 e8R Kc6 e6 h3 e7 d4 b5+ Kd7 b6 Kc6 Ne2 d3 Ra3 h2 Ke3 d2 Bb2 Bd7 Nc1 Rh6 Nb3 Na6 b8B Kb7 c8R Bf5 Bd3 Rh5 Bf4 Rg5 Bc2 Bg4 Bf5 Bf3 Rcd8 Rb8 c6+ Ka8 c7 Nc5 c8R Nb7 Rc2 Rc8 Qe2 d1B Na5 Rb8 Rc4 Bc2 Nd2 Rc8 Rf1 h1R Rf2 Rb1 Rd5 Rd8 Re4 Rb8 Red8 Re1 e8R Bb4 R8d6 Ne7 Ndc4 Ng6 Rb5 Rb1 Rdd4 Nh8 Qd1 Rd8 Qh1 Rb8 Qh7 Rc8 R8e6 Re8 Qg8 Be1 Rbe5 Bc3 Rh6 Be1 Rh5 Bb4 Rb3 a3 Re7 a2 Ra3 a1Q R7e5 Nc5 b7+ Ka7 b8B+ Ka8 Rdd3 Nb7 Ra4 Re6 Rda3 Bc3 Rd5 Re5 Rdd2 Bb4 Rde2 Be1 Bd4 Qb2 Bc3 Qb6+ Bd4 Qf6 Bb2 Bd2+
Nb2n3/b2P4/B2p1NB1/k2rB1B1/B1PKb1R1/Nrn3pR/4q1Qn/B5N1 w - - 0 1 illegal: No proof kernel
1K3r1B/5N1p/1n2k2P/1PrR1N1q/bNN3B1/B1N1q3/2Qp1N1B/Rb3qn1 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 f5 d4 e5 dxc5 Be7 g3 Bg5 fxe5 f4 Bd2 f3 Bc1 Bf4 gxf4 Kf7 Ra6 Kf8 Ra1 Ke8 Kf2 Ke7 Kg3 d5 b4 g5 e4 a5 c4 d4 h4 d3 e6 f2 b6 g4 c6 a4 h5 a3 c7 d2 e5 a2 b7 Ra7 f5 Qd4 h6 Qd8 Kf4 g3 c5 g2 b5 Nd7 b8B Qe8 c6 Nf8 Nc3 Qf7 f6+ Ke8 e7 Qh5 Ba3 Kf7 e8N Qg6 Nh3 g1Q Be2 f1B Ng7 Ra6 Qc2 Bf5 c8N Nd7 c7 Q1g2 Ne7 Rd6 c8N Be6 Ngf5 Bc4 e6+ Ke8 f7+ Kf8 Ned5 Qh5 Ncb6 Ne5 Nb4 Rc6 Nf2 Qgh3 Bg4 Bb3 Nc4 Nf3 Rh2 Ng1 Ke5 Rc8 Kd6 Rc5 Kd7 Qg3 Rh1 Qf3 Bh2 Qe3 Bb2 Bd3 Kd8 Re5 Kc7 Ne7 Kb8 Ba4 Ba3 Nc8 Bb2 Nh3 Rhg1 Rc5 Rge1 Qf4+ Re5 Qe3 Rd5 Rg8 Ng3 Ke7 f8B+ Kf6 e7 Ng1 Nf5 Ke6 e8N Rh8 Bg7 Rf8 Ned6 Be4 Bh8 Bd3 Rf1 a1Q Nf7 Qae1 Bc1 Q1e2 Rd1 Qf1 Ba3 Be4 Ra1 Bd3 Qb3 Bb1 Qc2 Nb6+
r1N1q2N/2Rn1Q1p/NNK1bB1p/q3PrR1/R2qB3/3N1nR1/3N1P2/2bk4 w - - 0 1 illegal: Other
B1Nrb3/1p1NNKB1/1P1b2r1/B1p1BnNR/PN6/3Nk2q/1Qb2nq1/1R6 w - - 0 1 illegal: Other
k1B1B3/2nBK1br/bB6/4Bq1N/1N2RBPR/rpN4n/1pP4b/3Q1Nb1 w - - 0 1 illegal: Other
q1r3k1/1R1n1r2/1NR1Pp2/4pb1Q/1Rnb4/1BBR1P2/R1b1NNb1/R4KN1 w - - 0 1 illegal: No proof kernel
B2q3q/2B3bn/1q1R1p2/2PNR3/1pnRB1NR/BPB5/1Qb1Kr2/1n1B2k1 w - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 h5 a4 e5 fxe5 a5 g4 b4 gxh5 Ra7 Be3 Rb7 Bc1 Rb5 axb5 Ba6 Bg5 Bb7 Bc1 Bc8 e4 Ke7 c4 Ke6 h4 g5 c6 d5 b3 d4 b6 d3 b7 d2+ Ke2 a4 c5 a3 c7 g4 h6 a2 h7 g3 h5 g2 h6 Qd7 Qc2 d1N Ba3 Na6 b8B Nf2 Nh3 g1Q Qb2 Qg2 Nc3 Qg3 Bg2 Nd3 Nf2 Qb5 Nd5 Qg5 Rh4 Qd7 Rd1 a1Q Ng4 Qd6 Bf3 Bd7 c8B Nc7 Bb7 Qb6 Ba8 Nb5 Bc7 Nf6 Bg2 Rg8 h8R Bg7 h7 Rf8 Rg8 Bc6 h8B Nh7 Bf3 Qd8 Bg2 Ne1 Rd4 Nf3 Bh1 Nd2 Bg2 Bf6 Rg6 Nd6 Bf3 Nb1 Bh1 Bb7 Rgh6 Kd7 e6+ Kc6 e5 Nc4 Be4 Bg7 e7+ Kd7 Ndf6+ Ke6 e8B Ba6 Be8c6 Bc8 Bf3 Kf5 Bce4+ Kf4 Nd5+ Kg3 Rd6 Bf5 e6 Bg6 e7 Bf5 Bc2 Bg6 Bd1 Bc2 Qc1 Qb2 e8R Qc3 Be4 Qa1 Bf5 Kg2 Re5 Kg1 Qb2 Re8 Nde3 Re6 Bfe4 Rf6 Nd5 Rf2+ Ke1 f6 Bdf3 Ng5 Be2 Bf8 Rh3 Bh6 Bg7 Nbd2+ Qc1 Qc3 Bd1 Qb7 Qb2 Qb6 Rh2 Qh3 Bf8 Rf3 Ke2 Nb1 Bg7 Qh5 Rh4 Qhe8 Bf8 Nh7 Bg7 Qh8 Bf8 Bc1 Bh6 Rf1 Bf4 Rf3 Bg3 Bh6 Be1 Bg7 Bc3 Rf2+
2q2qR1/2N1pb2/4R2b/3NPqNn/kPR3B1/q3QR2/r1n2Bp1/1KNR3R w - - 0 1 legal: proof: g4 d5 h4 g5 a4 b5 axb5 a5 c4 f5 gxf5 g4 cxd5 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bd7 Na3 Be6 Nb1 Bc8 f4 Kd7 e4 c5 d4 h5 Kd2 h4 Kc2 h3 b4 h2 e5 a4 d6 g3 f6 a3 b6 Kc6 b7 c4 g6 Kb5 f5 g2 f7 a2 f6 Qb6 d7 Ka4 d8N c3 g7 Nd7 b8N Qa5 d5 Ba6 d6 Rh3 Be3 Rg3 Ne2 Rh3 Qe1 Bc4 Ne6 Ba6 Nc1 Bb7 Ng5 Ba6 Bf2 Nb6 d7 Bc4 d8R Nd5 Be2 Qa8 Rd6 Re3 Bg4 Re2+ Kd1 Rb2 Qe3 c2+ Kd2 Bb3 Na6 Qe8 Rd1 h1Q Nc7 Qh7 Re6 Qf5 Rh1 Nh6 g8R Nf4 Rd1 Nh5 Rh1 Bg7 f8R Qf7 Re8 Qf8 f7 Bd5 Rc8 Bc4 Be2 Ng4 Bd1 Bh6 Nc3+ Ka3 N3d5+ Ka4 Rb1 a1Q Be2 Qa3 Rd1 Qg7 f8R Ra2 Rff6 Qf8 Bf3 Nh2 Bg4 Bb3 Rh1 Nf3+ Kc3 Nd4 Kd2 Qe4 Rf3 Bc4 Na6 Bb3 Rc4 Qef5 Nac7 Rb2 Ne2 Ra2 Rbd1 c1Q+ Ke1 Qa1 Nc1 Nc2+ Kd2 Qd4+ Qd3 Qa7 Qe3 Qab8 Ne2 Rb2 Kc1 Ra2+ Kb1 Qb7 Nc1 Qbc8 Rcc6 Bc4 Rc5 Bb5 Rc3 Be8 Rc4 Bf7
5Rnq/2kBnR1Q/1R4Bb/2B1R1p1/2rR4/p1N2PK1/3R1PNp/nB3r1b w - - 0 1 illegal: No proof kernel
RK3BqR/1R1B2BQ/r1p1R1p1/nb4N1/3rP1np/1kb3B1/Rr4NP/4R3 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 f5 axb5 e5 gxf5 Qd6 dxe5 Qd8 c4 Ne7 cxd5 Ng8 Kd2 Kd7 Kc3 a5 Kd4 h5 f4 g6 b4 c6 e4 a4 d6 a3 Kc5 a2 f6 Ke6 b6 h4 f7 Ra5+ b5 Ra8 f5+ Kd7 f6 Ke6 b7 Ra4 b6 Qd7 Nc3 Rh5 Nf3 Bh6 f8B Ra3 f7 Qe7 Bg7 Qf8 Nd5 Nf6 Ng5+ Kd7 e6+ Kd8 e7+ Kd7 e8R Qh8 f8B Rf3 Nf4 Rh3 Re6 Rd3 Bh3 Qh7 Re1 Qg8 Ng2 Ng4 Bf4 Rb3 Bg3 Rb2 Rc1 a1R Rc2 Ra6 Rd2 Rb1 Ra2 Rb2 Qa4 Ra8 Qa7 Na6+ Kc4 Nc5 b8R+ Nb7 Kd4 Kd8 d7 Na5 Qb7 Ra6 Kc5 Nf6 Kd6 Ng4 Bd4 Bg7 Ra8 Bh8 Bdg7 Rh7 Qa7 Rh5 b7 Rh7 Bh6 Bc3 b8R Rf7 Rb7 Rff2 Qe3 Rfc2 Bhg7 Rd2+ Kc5 Rd4 Qe2 Nh6 Qh5 Ng4 Qh7 Ne5 Rb5 Kc7 d8R Bb7 Rde8 Kd7 Bf5 Ng4 Rb4 Ra7 Kb6 Ba6 Rec8 Bb5 Rce8 Nb3 Rec8 Ra6+ Kb7 Na5+ Kb8 Ne5 Re7+ Kd6 Bd7 Kc5 Rb3 Kc4 Re6 Ng4 Rd8 Ba4 Rb7 Bb5 Be7 Qf7 Rh8 Qg8+ Bef8 Kb3
2b1RN2/1RQNB3/3rq3/1N1p3k/3PRpnq/2n2N1b/1p4P1/N1NKb1RB w - - 0 1 illegal: Other
q2N3N/k1p1BB1B/p1b4q/1BP1N1Nn/2R4n/2Prq3/1Kp3r1/R1NQ2N1 w - - 0 1 illegal: Other
r3kn2/1R1RB2p/B1BB1p2/b2n1N1P/2p2K2/3B1P2/Q1N1r1Bp/3q1NqN w - - 1 2 illegal: Other
1R1Nr1q1/1b3p2/3NN1B1/3K4/N1p5/PB2RP1p/nr1NpkqB/nN1Q1B2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 h4 Ra8 hxg5 Qd7 d4 Qb5 d6 Bg7 d5 Qd7 e3 Bd4 exd4 Qd8 Kd2 Kd7 Kd3 e5 Kc4 h5 g4 c5 g6 b6 g5 h4 a6 e4 g7 e3 a3 e2 a7 Qf8 g6 Rh5 Nf3 Nc6 Bf4 Qd8 Nfd2 Rh6 Rh3 Nb4 Re3 h3 f3 Qc7 Bh2 Nf6 g8B Qc6 g7 Rh4 Bh7 Na2 g8B Ne4 Bg6 Bb7 B8h7 Re8 a8N Rg4 Qc1 Qc8 Qd1 Nec3 Bc2 Nc1 Bhg6 Nb3 Ra2 Na1 Rb2 Na2 Bb3 Kd8 d7 b5+ Kd3 b4 Kc4 Rf4 Nb6 Kc7 d8N Kd6 Na4 Qg4 Ne6 Qg2 Re5 Rf5 Re4+ Re5 Re3 Rb8 Nf4 Ree8 Ne6+ Kd7 d6 Kc6 Nac3 Kb6 d7 Kc6 d5+ Kb6 Bbc2 b3 d6 Kc6 d8N+ Kb6 Kd3 c4+ Kd4 Rf8 Nc5 Re8 N3e4 Kb5 Nde6 Kb6 Nbc3 Kc6 Rb1 b2 d7 Kb6 Nd6 Kc6 Rc1 b1Q N5a4 Qb5 Ncb1 Qbg5 Bb3 Q5g4+ Ke5 Q4g3+ Kf6 Kd5 d8N Qg4 Rc2 Q4g3 Rb2 Qg4 Bd3 Qg8 Bg6 Qg4 Rc3 Bc8 Bbc2 Qg2 Rb7 Ra8 Kf5 Ra6 Rb8 Rb6 Kf4 Rb2 Bb3 Bb7 Nec5 Kd4 Kf5 Nc1 Kf6 Nd3 Nce6+ Ke3 Kf5 Kf2 Kf6 Ne5 Re3 Nc6 Kf5 Nb4 Ke5 Na2 Kd4 Ba6 Kd5 Bb7+
R6B/2p1k2B/1p2Bp1B/N1P3BP/5R1p/KNb1Rr1n/1n2nBb1/2QR3r w - - 0 1 illegal: No proof kernel
2rnB1b1/3Nrr2/1q3Q1B/B1bpq3/3NNNN1/k1pP1nR1/2P2R1K/4bBN1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 g4 a5 b4 c5 f4 h5 Kf2 e5 Kg3 Ke7 g6 Kd6 b6 e4 d3 a4 b7 h4+ Kh2 a3 g5 c4 g7 e3 f6 e2 f5 e1B g6 a2 f7 c3 f6 h3 b5 Kc5 b6 Kb4 Nd2 d5 Ne4 Nh6 g8N Bd7 g7 Ra6 Qf3 Be7 f8N Bd2 f7 Bg4 Ng6 Ra5 f8B Nf7 Ngf6 Ng5 g8B Be1 Nf4 Be6 Bf7 Nc6 b8N Ra7 b7 Bc5 Nbd7 Qb6 b8N Nd8 Be8 Bg8 Ng4 Rc7 Be3 Ka3 Bh6 Rh7 Rb1 a1Q Nc6 Re7 Nd4 Rc8 Rd1 Qab1 Rd2 Qf6 Rf2 Qbb6 Ng6 Qfe6 Qf6 Qe5+ Nf4 Rf7 Nge2 Re7 Rg1 Rf7 Rg3 Nf3+ Kh1 h2 Ng1 Kb2 Bc1+ Ka2 Ba3 Re7 Kg2 h1R Bb4 Kb2 Ba5 Ka3 Qe6 Rh5 Qf6 Rg5 Kh3 Rgg7 Kg2 Rgf7 Kh1 Nd2 Kh2 Nf3+
QR1RrR2/1p3pN1/2R1p3/2rB1nqb/NPqk4/b3n3/BK2P2R/2r1BRB1 w - - 0 1 illegal: No possible last move
1B1r2Q1/1b3nR1/1r2nBRB/p1K1B1rB/PN1rB3/rk1P1NB1/8/q3B2q w - - 0 1 legal: proof: g4 b5 h4 g5 c4 f5 gxf5 d5 cxb5 g4 e4 Bh6 exd5 Bg5 hxg5 Qd7 Be2 Qd6 Bf1 Qd8 Ke2 Kf7 Kd3 a5 Kc4 h5 a4 e5 f4 c5 b4 h4 b6 h3 d3 g3 f6 h2 d6 Ke6 b7 g2 d7 e4 g6 e3 f5+ Ke5 g7 e2 b5 e1R f7 Qb6 f8B Rh7 d8B Qc7 b6 Rh4+ Qg4 Re3 f6 Nd7 b8B Qd6 f7 Ne7 g8B Ra6 b7 Ng6 Nc3 Nf4 Na2 Ne6 Bh7 Rb6 Be4 Rg3 Qg8 Rg5 Nb4 Rhg4 Ne2 g1R Bh6 R1g2 Nd4 Ra2 f8B Ra3 Rg1 h1Q Bbc7 Rh4 b8B Bb7 Bd2 Rhg4 Nb3 Rf4 Be1 Rfg4 Kc3 c4 Be2 Rh4 Bh5 Rf4 Kd2 c3+ Ke3 c2 Nd4 c1R Ra2 Rc5 Rag2 Rd5 Rg3 Rgf5 Bh4 Rg5 Be7 Rf8 Rg4 Rd8 R4g3 Rf5 Rg7 Rg5 Nb3 Rd4 Nd2 Ndf8 Rg2 Ng6 Bhf2 Nh8 Bg3+ Nf4 Rg1 Nf7 Rg2 Ke6 Nf3 Qe5 Rg1 Kd7 Bf6 Ne6 Nd5 Kc6 Nb4+ Kc5 Rg2 Qd5 Bge5 Qa2 Rg3 Rf5 R3g6 Rg5 B5g3 Qb2 Bce5 Qa1 Na2 R4d7 Nc3 Kb4 Nd5+ Kb3 Nb4 Nf4 B5c3 Nd5+ Kd4 Rdd6 Kc5 Nf4+ Bce5 R6d7 Bd2 Rd4 Bde1 Ne6+
1BQ1qBB1/BbpbP2p/RB3nBr/N4B2/3b4/2nPn2B/1K4rk/1N3R2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 g4 a5 e4 f5 d6+ Ke6 g6 a4 d7 f4 g7 f3 d3 f2+ Kd2 a3 Kc2 a2 g5 Ra4 b6 Ra7 g6 Bd6 b7 Nf6 g8B+ Ke7 e6 Nd5 g7 Kf6 e5+ Kf5 b5 Ne7 b6 Qe8 d8B Ng6 e7 Qd7 e8B Ra8 e6 Qb5 Bh3+ Ke5 Be3 f1B Qg4 Ra6 Ne2 Ne7 Nd4 Nd7 b8B Bb7 Nb3 Nd5 Kb2 N7f6 Bg6 Nc3 Ba7 Bc5 Be7 Qe8 Bf8 Bd4 e7 Be2 Be6 Rg8 Rg1 Bef3 Na5 Bfc6 Rf1 Bb5 Bf2 Bd7 Qh5+ Kf4 Bef5 Be6 Be3+ Kg3 Qg4+ Kh2 Bf2 Bd7 Be3 Be4 b7 Re6 b8B Bb7 Rf3 Be5 Beb6 Bd4 Nd2 Rc6 Raf1 a1N Nb1 Nc2 Re3 Rh8 Re6 Ne3 g8B Rc5 Be4 Rh5 Bef5 Rh6 Bc5 Be4 Ra6 Bd5 Bcb6 Bb7 Ba2 Rg8 Baf7 Rg7 Bg8 Qc8 Qe4 Qe8 Qe6 Bb5 Qc8 Bd7 Bh5 Rg4 Bhg6 Rg2+
3n4/Bp1B1KNP/6pQ/R1b1B2B/2krqbP1/Bbq3Bn/2qB4/1R2N2B w - - 0 1 illegal: No proof kernel
N5Q1/1qRn1qB1/4B3/NrN2Bk1/1KP2Nrq/3R1Bnr/2P4n/2RR4 w - - 0 1 illegal: No possible last move
1B1r4/2B1k2K/2PnbRBq/rRQ1N1R1/q5q1/1r1P1R1r/3N1r2/3BN2N w - - 0 1 illegal: No possible last move
r3Q3/2rqq1b1/k3BP2/1R1NR1p1/1B3r1b/1N2Nb1B/1RB3KP/2RN2n1 w - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 f5 fxe5 h5 a4 h4 axb5 h3 g4 f4 Ra3 Nc6 Rxh3 Nd4 Rh7 Nf5 gxf5 Ke7 Nh3 Kd7 Ng1 Ke8 Kf2 Kd7 d4 c5 e4 Kc7 e6 Kb7 b6 a5 d6 f3 d7 g5 d5 c4 e5 a4 f6 a3 b5 c3 d6 a2 e7 a1R e8B c2 e6 Bh6 e7 R8a7 Bf7 R7a6 e8B Ra7 Qe2 R1a5 Nd2 Ra2 Bh3 Bg7 Nf1 Ra8 Ne3 Qc7 d8N+ Kb8 d7 Bb7 Ba3 c1B Ne6 Ra5 d8N Bh6 Nc6+ Kc8 Bb4 Qd6 Ncd4 Rc2 Nb3 Ra8 Nc7+ Qd7 Bfe6 Bd2 Re7 Bg7 Bg6 Nh6 Ncd5 Rc7 Bc2 Nf7 Kg3 f2 Kg2 Bc6 b7+ Kb8 Qh5 Ka7 b8R Be1 b6+ Ka6 b7 Ne5 Ne2 Nf3 Nec3 Ng1 Qe8 Rh4 Ncd1 Rc4 Rd8 Re4 b8R Rf4 Rb5 Bb7 Rb8 Bc6 Bf7 Bb7 Re5 Bc6 Bfe6 Qe7 Kg3 f1Q+ Nf2 Qe2 Kg2 Qd3 Nfd1 Bh4 Nc3 Nf3 Rc1 Ng1 Ncd1 Qd4 R8b7 Qa7 Rb8 Qd7 R8b7 Qc5 Rb8 Qce7 Rc5 Bb5 Na1 Be2 Ba3 Rc6 Rb2 Bc4 Nb3 Be2 Rb5 Rc7 Bb4 Bf3+
4KN2/bkq1q3/4p3/P1RbN2B/Q3R1Nr/RrBR1p2/B3rP1N/4B1n1 w - - 0 1 legal: proof: e4 d5 exd5 a5 b4 b5 bxa5 b4 c3 Na6 cxb4 Nb8 g4 h5 gxh5 Nc6 a4 Qd7 a6 Nd8 b5 Qg4 a5 Nc6 b6 Na7 bxa7 Qd7 Qc2 Qd6 Qd1 Qd8 Ke2 Kd7 Kf3 c5 Kf4 Kc7 Ke5 f5 d4 g5 h4 f4 h6 g4 h5 e6 h7 c4 d6+ Kc6 d5+ Kb5 h6 g3 d7 g2 d6 Kc6 Ra3 c3 Nf3 g1Q Nh2 c2 Bc4 Qe8 d8R Qg2 d7 Qg4 Re1 Be7 Bd2 c1R Ba2 Bf8 Nc3 Be7 Qa4+ Kc7 Ne4 Qf7 Nf6 Qd1 Re4 Qg4 Be1 Qg2 Nfg4 Rb8 a8B Rc3 a7 Ba6 B8d5 Qh3 a8R Rb2 Rab8 Be2 Rb5 Qg3 Bdb3 Bc4 Bd1 Bf8 Rc5+ Kb7 Be2 Ne7 Kd6 Rcb3 Bd1 Rg8 h8N Re2 h7 Bd5 Ng6 Rh8 N6e5 Bh6 Ng6 Nc6 Nf8 Ka6 Kc7 Ne5 Kc8 Nf3 Kc7 Rg8 h8B Ng1 Bhc3 Rh8 Kc8 Bg7 Kc7 Bd4 Kd6 Qf5 Ke7 Qf6+ Ke8 Rh7 Rb8 Rh6 d8N Rh4 Nc6 Be3 Rd8 Kb7 Nce5 Qg7 Rcc8 Ba7 Rc5 Qc7 Nf6 Qg5 Nfg4 Bc4 Rd3 Bd5 Ba1 Re3 Bf3 Re2 Bac3 Qgg7 Ne3 Qh7 Bh5 f3 N3g4 Qhe7#
n2RN2k/3N3P/5Nnp/2P1B3/B3RB1K/N1q1n1p1/2R2b2/Qn1Rbb1B w - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Ba6 b4 Bb7 b5 Bc8 g5 a5 h3 h6 h4 Rh7 g6 Ra6 gxh7 g5 Bd2 g4 Bf4 Rg6 Bc1 Rg5 hxg5 Ba6 Rh2 Bb7 Rh1 Bc8 c4 Kf7 f4 Kg7 Kf2 d5 Kg3 e5 b4 a4 b6 a3 c6 d4 f6+ Kh8 f7 e4 c7 a2 c5 e3 g6 e2 f5 e1N f6 d3 b7 d2 b5 Na6 b8R Ng2 b6 Nb4 b7 Ne3 Na3 Qd4 Nh3 Qf4+ Kh4 Bf5 c8N Nc6 Rh2 Bc2 Bg2 Bb1 Nd6 Nge7 Ng5 Bd3 Bh1 Na7 Nge4 N3d5 Ne8 Nc7 Rd8 Qf3 b8B Bg7 f8N g3 f7 Qe3 N4f6 Na8 Be5 Nb5 N8d7 Nc3 Rg2 Nb1 f8R+ Ng8 Qf1 d1N Rc2 Qf3 Qe1 Bf1 Bcf4 Qc3 Rf7 Ne3 Re7 Qd2 Re6 Ne7 Qc1 Qc3 Qb2 Nd2 Rd1 a1B Qb1 Bb2 Qa1 Nb1 Bb8 Qd3 Re4 Bc3 Bbe5 Be1 Bd4 Nc4 Nc7+ Bf8 Ng8+ Ne5 Nb6 Nd5 Bb2 Bd6 Nf6+ Kg7 Bd4 Bf2 Bc3 Ne3 Bb2 Nc6 Bbe5 Ne7 Rd7 Kf8 g7+ Kf7 g8B+ Kg7 Rd8 Kh8 Nce8 Bc7 Nbd7 Ba5 Bf7 Bae1 Bb3 Qc3 Ba4 Ng6+
1Nnk3B/1B6/2K4p/2NnRP1r/1pn1BBRp/b4R2/2Q1R1PN/2nb3N w - - 0 1 illegal: Other
3RN1k1/2N2n2/PN1rRBKQ/7r/2BBpn2/1q2Np2/pP2Bp1R/5R1b w - - 0 1 illegal: Other
1R3r2/n1K1Nnb1/1NbNN1BR/1r3B2/1bPbQ3/PqR5/kr6/1nB3BR w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 b5 Kb4 g5 f4 e5 h4 d5 c4 d4 a6 d3 h6 e4 h5 g4 f6 Ke6 f5+ Ke5 a7 Kd4 h7 d2 f7 e3 a3 g3 h6 e2 f6 e1B Nc3 g2 Nge2+ Kd3 Ng3+ Kd4 Qf3 g1B Bd3 d1N Nf5+ Ke5 Ne7 Kd4 c6 Qd6+ Ka5 b4 Kb6 b3 Bg6 b2 Ne4 Qb4+ Kc7 b1R Nd6 Qb2 Qe4+ Kc3 Ra2 Qb4 Rc2+ Kb3 Rc3+ Ka2 Qf4 Nb2 Qe4 Bg7 f8R Na4 f7 Bd7 Rd8 Qb3 f8N Rb2 Ne6 B1d4 Rc8 Nf6 Rf8 Rg8 h8R Ng4 h7 Ne5 Rf6 Rd8 Re8 Nf7 h8B Bf8 Bg7 Bd2 Bh6 Bg7 Be3 Be1 Reh8 Rf8 Bg1 Be8 R8h6 Bd2 Rf5 Be1 Rb5 Bd2 Rg3 Nc3 Rb4 Nb1 Rc3 Nd7 Rb5 Rb8 a8N Nb6 Rb4 Nc8 Rb7 Na7 Nb6 Rd8 Rb8 Be1 Kb7 Bd7 c7 Be8 c8B Bc6+ Kc7 Bd2 Nb5 Rd5 Nd6 Rg5 Nc5 Rd5 Bcf5 Be1 Ne6 Rb5 Rd3 Ba5 Rc3 Bb4
n3QNB1/1n1B3N/R1b2rrR/B1N2K2/1P2B3/2q1k2P/N2nn2b/2n1qRR1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 a5 d4 c5 e4 g6 d6+ Ke6 d7 c4 h6 a4 d5+ Ke7 h7 a3 d6+ Ke6 h3 a2 b6 c3 b7 c2 Nf3 Nf6 Bd2 c1N Qa4 Ng8 Bg2 Qb6 d8R Qc6 d7 Bd6 Rf1 Nf6 Ba5 Rf8 h8R Ra6 b4 Qc3 Rh6 Nc6 b8N Ne8 Qb5 Qe1 Nc3 Bb7 Rb1 a1Q Na2 Rb6 Na6 Qac3 Ra8 Rf6 Qe2 Nc7 d8N+ Kd7 Ne6 Nd8 Nf8+ Kc6 Kg5 f4 e6 Be5 Kg4 g5 e7 Rg6 Ra7 Na8 Kf5 g4 Nc5 g3 Ng5 f3 Ra6 f2 e8B+ Kd6 Qh5 Bc6 Ngh7 Nb7 Bf7 Bf4 Bh1 g2 Bg8 g1N Ra1 Bh2 e5+ Ke7 e6 Kd6 e7 Nge2 Rg1 f1N e8B Nd2 Bd7 Rf6+ Kg5 Ke5 Qe8+ Kd4 Be4 Ke3 Rf1 Nd3 Rd1 Ndc1 Rg1 Qf2 Rdf1 Qe1 Kg4 Ba4 Kg5 Rbd6 Kg4 Bc6 Kg5 Rg6+ Kf5 Rdf6+
1RNBrQN1/2q2Bbn/NB3R2/r2N1qn1/R3n2K/1B3b2/2RPP3/1k1n3b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 c5 h4 a5 b4 g5 e6 Kf6 b6 Kf5 e7 Ke4 e8B f5 b5 g4 d6 a4 h6 c4 d7 a3 h7 a2 b7 c3 h5 c2 b6 Ra4 h6 Ra5 Bb2 c1N Nc3+ Kd4 Nd5+ Kc4 Bh3 Bg7 Bd4 Nf6 Qf1 Kb3 Ne7 Kc2 Ng8 f4+ Kh4 f3 Bf7 g3 Bhe6 g2 Nh3 g1N Nf4 f2 Nd5 Qc7 d8B Na6 b8R Nh3 b7 Nd3 Bb6 Nac5 Rg1 Nb2 Rg6 Bd7 Rc8 Ba4 b8N Bc6 Na6 Nd1 Rb8 Bb7 Rc1+ Kb2 Rc2+ Kb1 Rg4 a1Q Ra4 Qa2 Nde7 Nf4 Bh5 Nh3 Nc8 Nd5 Nf6 Rg8 h8R Bc6 h7 Re8 Rf8 Ng5 Ng8 Nf6 h8N Qd5 Ng6 Nfh7 N6e7 Qde5 Rf5 Bh1 Bb3 Nce4 Nd5 Qe6 Qe1 f1B Qf2 Qee5 Qc5 Bh3 Rf6 B3g2 Qf8 Bf3 Bf7 Qf5
8/q3nBBP/b2NRqr1/NKRN2r1/B3QR2/1N2n1bk/RP2n3/Bq2q3 w - - 0 1 illegal: Other
n4r2/1RPNNBq1/r2B1b2/3bR2r/krRrQ2B/2rP3N/B5R1/K1N2n2 w - - 0 1 illegal: No proof kernel
1Bb2Qb1/RPN2b2/4N1B1/1R1KN3/N1Rn1q2/2BbPn2/1bR5/Brb2k1r w - - 0 1 illegal: No proof kernel
1B5K/1bq1r3/2N3Bp/2NN1RP1/3Q3n/Rr2nRq1/1RB1P2k/2qBn1bN w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kg3 f5 Kf4 c5 d4 a5 b4 a4 g4 c4 d6+ Ke6 d5+ Kd7 b6 c3 b5 c2 g6 a3 e6+ Ke8 Ke5 a2 d7+ Ke7 g7 h6 b7 f4 b6 f3 g5 f2 Bg2 f1N Be4 Ra4 Bf4 c1Q Nh3 Qd2 Bc2 Nh2 Nc3 Qe8 d8N Qd7 d6+ Ke8 e7 Rh7 Nc6 Kf7 Nf2 Qc7 Nd5 Nf1 Rh3 Rb4 Nh1 Qc3+ Qd4 Qe1 Rf3 Na6 b8R Nc5 b7 Rb3 Ra8 Qh4 b8R Bb7 Ra3 Ne3 Raf1 a1Q Bd1 Kg6 e8B+ Qf7 d7 Kh5 d8N Kg4 R1f2 Qc1 Ne6 Ne7 g8B N7f5 Bc2 Qc7+ Kf6 Nd3 Nc5 Ne1 Bg6 Rg7 B8h7 Rd7 Bd1 Qg3 Rf1 Nh4 Bgc2 Kh3 Bhg6 Be7+ Kg7 Bd8+ Kh8 Re7 Be5 Kh2 Rf5 Qd7 R1f3 Bb6 Bd6 Qc7 Bf4 Ba6 Rb7 Ba7 Rb5 Bb7 Bd6 Rc3 Rb2 Rb3 Be5 Qd7 Bb8 Qdc7 Qe4 Bb6 Qd4 Qg4 Ne4 Nc4 Qd2 Bg1 Nc5 Qgg3 Qd4 Ne3
2R1q2R/n1P1pqN1/5R2/1R1bKn2/BQP2NkN/1B3qNb/5B1r/2B1b1r1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 d5 g4 h5 b4 a4 c6 d4 c7 a3 b6 h4 b5 a2 g6+ Kf6 g5+ Kg7 b7 d3 b6 h3 Nc3 h2 Nd5 d2 Qe1 d1Q Ke5 Rh7 f4 Qf3 f6+ Kh8 f7 Kg7 f5 Qh3 f6+ Kh8 Qb4 Bh6 f8N Qe8 f7 Kg7 Ne6+ Kh8 f8N Qh4 Ndf4 Qd8 Nge2 Ra4 Ng3 Qg4 Ng7 Qh5 Bb5 Qe8 c3 Ra6 Ba4 Bh3 Rb1 a1Q Rf1 h1B Rb2 Ra8 Rh2 Na6 b8B Qa2 b7 Qf3 Ba7 Qaf7 b8R B1g2 Rb5 Nb8 Bf2 Ra6 Bc2 Ra1 Ba4 Bh1 N7f5 B1g2 Nh4 Kg7 Rhh1 Nf6 Rh2 Ne4 Rhh1 Nd6 N8e6+ Kh8 Rh2 Nf5 g7+ Kg8 Rhh1 Rh8 Rh2 Kh7 g8R Bh1 Ng7 Rb1 Rd1 Ra1 Rd6 B1g2 Bce3 Rg1 Rf6 Bh1 Bc1 B1g2 N7h5 Bg7 g6+ Kh6 Rf8 Kg5 Rh1 Bh6 g7 Kg4 g8B Bg5 Ng7 Rh6 c4 Rh5 Bh7 Bh6 Nfe6 Bd2 Nf4 Be1 Rh8 Qb3 Bg6 Bd5 Rf8 Rh6 Rh8 Qf3 Bh7 Ne3 Bhc2 Nf5 Bcb3 Bg2 Nhg6 Rh2 Nh4 Bh3 Rf8 Qd7 Rd8 Qde8 Rc8 Bg2 Nhg6 Rh8 Rh2 Bf1 Rg2 Rhh1 Rh2 Bg2 Rh5 Bh3 Rh8 Rh2 Nh4 Nd6 Kd4 Nc6+ Kc5 Na7 Kd4 Nf5+ Ke5 Qfg8 Ne4 Qef7 Ng3 Qge8
1Bk2b2/3p2Q1/2K1B3/Nnb2R2/1PbRN2P/1b2br1N/BR4rq/2BR1N1n w - - 0 1 illegal: Other
K2Bn1Q1/3P4/2k1q3/3n4/bPB1R2R/2RBrpb1/RbrpNB2/1rNNN3 w - - 0 1 illegal: No proof kernel
qNbNN3/nB2nr1q/2pQ2B1/1R4Br/3RPP1N/3R2bk/5r1p/2KR3B w - - 0 1 illegal: No proof kernel
k2bbB2/2R2p1n/2n2qR1/1PN2nP1/1QK1BB2/n1BNr3/R2NNp2/5r1R w - - 0 1 illegal: Other
4Br2/2R1B2R/2B1N1pQ/1rPqbR2/bN6/NnK1pBr1/1P2R1pN/2k2n2 w - - 0 1 illegal: Other
4bRn1/n2Qpr2/PBB3Rp/2B5/1b2p1PR/k1N4b/2KN2q1/BR1r2NN w - - 0 1 illegal: Other
1N1qn1B1/nk4NR/2rbp1p1/KrPP3R/1N1Q4/R1B4p/2b3BN/1RB1q3 w - - 0 1 illegal: No proof kernel
1b1KRN1B/2pb4/B1bNr3/B3p1nN/1B3Rnk/2P1Qq1p/3rP1Rn/3R1N2 w - - 0 1 illegal: No proof kernel
5Bnb/n2b1PN1/kqRB1P2/3Q2N1/1r1Q4/P2R1qqB/K3RNq1/4qQ2 w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 a5 cxd5 a4 Bc4 a3 bxa3 Qd6 Bf1 Qd8 g4 b5 Qf3 h5 gxh5 b4 Bh3 b3 Bf1 b2 Qd1 Ra6 Ke2 Rb6 Ke1 Rb3 axb3 Qd7 Ba6 Qd6 Bf1 Qd8 h4 Kd7 d4 c5 Kd2 Kc7 Kc3 Kb7 f4 e5 h6 g5 d6 g4 h5 g3 d5 e4 b4 e3 Kb3 c4+ Ka2 g2 h7 c3 b5 c2 d7 e2 f6 e1Q h6 Qee7 f7 Ka7 b6+ Kb7 d6 Qc7 d8R Qc3 d7 Bg7 f5 Qh4 Nh3 g1Q Ng5 Qcb4 Qd5+ Nc6 Bh3 Qhg4 Rh2 Qf2 Nc3 Qge4 Nd1 Qfe3 Nf2 Ka6 b7 Nf6 b8B Qg2 Bd6 Re8 h8Q Qge4 h7 Qee1 Bf8 Q1e2 Bf4 c1Q B4d6 Qcf4 Rc1 Na7 Rc6+ Qb6 Qg8 Qee5 h8Q Qff3 Qh4 Qd2 Qhd4 Bh8 Qg7 Ng8 f6 Qef4 Qg6 Re3 Qb1 Q4g3 Qf1+ Rd3 Ng4 Qc2 Re2 Rb3 Nf2 Rb4 Rde8 Qg6 d8N Qc2 R8e3 Bd7 Nde6 Qg6 Ng7 Qgg2 N5e6 Q6g3 Ng5 Qh1 Kb1 Qhg2 Rd3 Ra4 Kc2 b1Q+ Kc3 Qe1+ Kc2 Nb5 Kb2 Rb4+ Ka2 Na7
4KB1b/2N1Q3/1p3Q1q/PRRBb1q1/1br3P1/Nk1PRrq1/2N1bB2/5Q2 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 f5 g5 h3 Nh6 f6 Nc6 Qf3 Nd4 Qd1 Ndf5 gxf5 g4 Bg2 g3 Bf1 Ng4 hxg4 Bh6 Na3 Bg7 Nb1 Bf8 Ke2 Kd6 Kf3 Kc5 Ke4 Kb4 Ke5 h5 a4 c5 d6 e6 d7 g2 a6 b6 a7 h4 d3 c4 a5 c3 Be3 h3 Ne2 g1Q Nd4 c2 Bg2 c1B Bd5 h2 Nc2+ Kb5 Bf2 Rh3 Qf1 Bb4 f8R Bb7 f7 Rc8 a8N Rc4 f6 Rf3 Nba3+ Ka4 Re8 Kb3 f8Q Qg2 Rg1 h1Q f7 Qh6 Nc7 Bc3+ Kd6 e5+ Re6 e4 Rb1+ B1b2 Qe7 e3 f8B e2 Rh1 e1B Rh5 Bf6 Re3 Qg3+ Ke6 Bd2 Kf7 Bh8+ Rf5 Bb4 Qf6 Qc8 d8Q Bc6 Rg5 Qf5 Qe7 Qff4 Rge5 Qfg5 Rc1 Bb7 Ke8 Bd4 Bc6 Ba1 Rb5 Be5 Bd5 Rf4 Bf7 Bf3 Bd5 Be2 Rc5 Rf3 Rb1+ Ka2 Rb3 Bbc3 Rbb5 Bb4 Qfe6 Kb2 Q6f6 Kb3
3N1BQ1/4rb1r/KPP1br2/B1R3PB/k1n1rn2/3NQ1q1/N2b1R2/1Qr3R1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 a5 Kc3 d5 f4 Kd7 b4 e5 g4 h5 c6+ Kd6 b6 a4 f6 d4+ Kc4 d3 Kb5 e4 c4 e3 g6 d2 b7 h4 c7 h3 c5+ Kd5 g7 e2 g5 e1R f5 a3 f7 h2 f6 a2 Ne2 Rh4 Qb3+ Rc4 Nf4+ Kd4 Rg1 h1R Nc3 d1B Bd2 Nd7 b8Q Nb6 Be2 Ra6 Nd3 Be6 c8R Qc7 Bh5 Ne7 g8Q Qg3 Rb1 a1R Na2 Re3 Rb2 Rac1 Qb7 Bg7 f8B Ng6 f7 Nf4 Be1 Bf3 Rf2 Bfd5 Qb1 Re4 Qe7 R4c3 Qe8 Nc4 Qe7 Rd6 Rc7 Rd7 Ka6 Bh8 Qe8 Re7 b5 Rh2 b6 Be5 Bd1 Rh7 Bh5 Ra3+ Ba5 Bg7 Ne5 Rf3 Nd3 Be5 c6 Bd6 Rd7 Bb4 Rd8 Bd2 Rd6 Bh3 Rf6 Bde6 Rf5 Bg4 Rc5 Bgf5 Bh6 Bg6 f8N Bgf7 Nab4 Bf5 Ne6+ Kc3 Nd8 Bg4 Bf8 Bge6 Nb2 Kb3 N2d3+ Ka3 Na2 Ka4 Qd7 Be1 Ne5 Nd3 Qd4 Rf6 Qe3 Nf4 Nd3 Bd2
n1rr4/R1N1q1B1/B4P2/1n1B2bk/4R1R1/QPN1QP2/n2Q3K/b1rr1N1b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kf7 g4 e5 f3 c5 Kf2 h5 Kg3 a5 g6+ Kf6 b6 a4 g5+ Kg7 b7 a3 b3 h4+ Kh2 c4 d6 a2 d7 c3 d5 c2 d6 e4 Qd2 h3 Qe3 Qf6 d8N Nc6 b8Q Nge7 d7 Nd4 Ne2 Nb5 Nd2 Nd5 Nc3 Nb6 Bb2 c1N Qa7 Qe7 Qa3 Ba6 Be2 Rc8 Re1 Na8 Nf1 Rg8 Qf4 e3 Ne6+ Kh8 d8Q Bh6 g7+ Kh7 Qd2 Rgd8 Bc4 e2 g8R Rb8 Kh1 h2 Nc7 Rbc8 Kg2 h1R Qfe3 Rh4 Bd5 Rc4 Kh2 Rd4 Qc2 Rd1 Qcd2 Na7 Bb7 Bd3 Ba6 Nb5 Rh8+ Kg7 g6 Bg5 Rg8+ Kh6 g7 Bc4 Re8 Kh5 g8B Bd3 Bd5 Bc4 Rg8 Bd3 f6 Bf5 Rg7 Bh3 Rg6 Bg2 Rg8 Nd3 Bc1 Nb4 Rg7 Bh4 Rg4 Bh1 Qa5 Bg5 Ba3 Nd3 Bd6 Nb4 Qa3 Qe6 Bf8 Qe7 Bg7 Rc1 Rb1 a1B Rb2 Rd1 Ra2 Rc1 Qab2 Rd1 Ra4 Rc1 Qa3 Na2 Rae4 Rb1 Rc1 e1R Rc2 Rbc1 Rb2 Nb4 Ra2 Red1 Qa5 Rc2 Bab7 Nd6 Qac5 Nb5 Ra7 Rcc1 Ba6 Na2 Qd6 Bh4 Qa3 Bg5
bn5Q/1P1NnkPP/r4rR1/1Q6/BK3NRB/n3Qqb1/1br4N/2nR1B2 w - - 0 1 illegal: No proof kernel
2Q1q1NR/1Qrrnn2/bn1q2B1/1kB1brP1/3P2N1/2Kn4/Q2PR1B1/N6R w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 b5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 b4 Kd7 f4 c5 g4 a5 g6 h5 g5 e5 g7 h4 b6 Kc6 f6 h3 f7 a4 b5+ Kd5 f5 e4 b7 c4 b6 Kc6 f6 h2 Nf3 a3 Bg2 c3 Ke2 a2 Ba3 c2 Ne5+ Kb5 Bc5 c1Q Qc2 e3 Kd3 e2 Ng4 e1N+ Kc3 Nd7 b8N Rh7 b7 Nd3 Nc6 Nh6 g8B Qe1 b8Q+ Nb6 Qb7 Qee8 Ne7 Bg7 f8Q Ra5 Bf7 Qd6 Bg6 Nf7 Ng8 Bh8 Re1 h1N Re2 Ng3 Qb2+ Nb4 Qb3 Nf5 Qe6 Nd3 Na3+ Ka4 Rc1 a1R Nc2 Kb5 Rh1 Ne7 Qa2 Rf1 Na1 Ra7 Rh5 Rf5 Rh1 Nd8 f7 Be5 Qbd5 Ba6 Qb7 Qec6 Qe8 Rg7 f8R Nf7 Qec8 Qe8 N8h6 Rh7 Rh8 Rg7 Ng8 Rh7 Qe4 Rc7 Qeb7 Nd5+ Kb3 Nd8 Rh2 Rhd7 Rh1 Ne7 Kc3 Nf7
kBn4q/3R2rR/Pb2bbN1/r1NP1n2/8/3QPB2/QQR1q3/1K1BNb1q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a4 Kd7 d4 g5 Kd2 c5 Kc2 Kc7 h4 f5 a6 b5 h6 g4 a5 g3 a7 Kb7 h7 f4 h5 c4 d6 f3 a6+ Kc6 h6 f2 e6 b4 d7 g2 e7 c3 e8Q Be7 Ra2 Bg5 Nd2 b3+ Kb1 b2 Ne4 Kb6 Qe6+ Nc6 Nf3 g1B Nc5 Bf6 Qd3 Ne7 Bf4 Nf5 Ne1 Re8 Qf7 Re5 h8Q Nce7 h7 Rd5 Qhg7 Qh8 d8R Be6 Bb8 Nc8 Rd7 Re5 Bg2 f1B Bd5 Bf2 Bb3 Be3 Bd1 Bg1 Nb3 Ra5 Nc5 Be3 Bf4 Rb8 a8B Rb7 Bb8 Rc7 Bf3 Rb7 Bf4 Ka7 Bb8+ Ka8 d5 Bed4 e3 Rc7 Qh5 Ra7 Qh2 Rc7 Nb7 Bb6 Nc5 Rb7 Rd6 Rd7 Qgg2 Rg7 Rd7 Qe8 h8N Qh5 Ng6 Qh8 Ra4 c2+ Ka2 Rb5 Rc4 c1Q Rc2 Qd2 Kb1 Qe2 Qe5 Ra5 Rh7 Qf2 Qec3 Qd2 Qcc4 Qe2 Qa2 Qg8 Rc3 Be5 Ba4 Bf6 Nc2 Qf2 Qh2 Qg1 Ne1 Qd8 Bad1 Qh1 Kc2 b1Q+ Kd2 Qb3 Kc1 Qg8 Qhb2 Qh8 Kb1 Qb4 Rc1 Qd2 Rc2 Qe2
8/P2Q1Kbk/1Qr4B/R1b3B1/Pq1RbN2/R3qnPQ/1r2q2N/1NqB2n1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 Ke5 c5 f4 b5 d4 c4 a4 b4 f6+ Kh7 d6 b3 f5 h4 d7 h3 Ke6 h2 f7 b2 f6 c3 d5 c2 a6 Qe8 g3 Bb7 d8R Nc6 d6 Ne5 d7 Nf3 a7 Be4 Be2 Nh6 Ra3 Bg7 f8B Nf5 f7 N5h4 Qd2 Rb8 Bd1 Rb5 Qg2 Rg8 Qh3 Rb3 Ne2 Ng1 Nf4 Rb7 Bd2 c1Q Be3 Qc5 Bd2 Qe3 Bc1 Bf6 Bh6 Nhf3 f8Q Bg7 Qf6 Rc7 Qd4 Rc6+ Qd6 Qh5 Bd2 Qg4+ Kf7 e5 Qb8 Re8 Qb6 Ree6 Bc1 Rc2 Bd2 Rec6 Bc1 Ne2 Rf1 h1Q Rf2 Neg1 Rd2 R2c3 Rd4 Rb3 Re8 Qg2 d8Q Qge2 Qd7 Rb5 Re6 Rb3 Rf6 Rb4 Rf5 Qh4 Nc3 b1Q Bd2 Qc2 Nb1 Rb2 Bc1 Bd3 Bd2 e4 Ra5 Qc1 Qb4 Q3f2 Qb6 e3 g6+ Kh8 Bb4 Be4 Be7 Qfe1 Beg5 Qb4 Qg2 Qh5 Qf1 Qf2 Qg2 e2 Qgh3 e1B Qhf5 Qhh2 Qh3 Be5 g7+ Kh7 g8N Qfe3 Qd5 Bf2 Qdd7 Bg7 Nf6+ Kh8 Ng4 Kh7 Qd5 Qg2 Qd7 Qf1 Nh2 Qfe1 Rd2 Q3e2 Rdd3 Bc5 Rd2 Q1f2 Rd4 Qfe3
5R2/1k5r/r1N1rQ1N/n2PP2P/bBB1rrQ1/q3n1b1/R2RQ1KB/5r1N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 b4 g5 e4 c5 d4 Kc7 h4 a5 e6 f5 d6+ Kb7 b6 a4 e7 a3 e8Q c4 h6 f4 h7 a2 b5 g4 d5 g3+ Kg2 c3 h5 c2 d7 Nc6 Ne2 Ne5 Nd2 Qf6 d8R Nh6 Nc4 Qe7 Bd2 c1R Rh2 Nf5 Bb4 Nc6 Ne3 Bd7 Ng4 Ra6 Nh6 Na5 Qg6 Bg7 Rf8 Rc4 Qg4 Be5 Qc2 Bc6 Rd1 a1R Rd2 Ra4 Qd1 Rg8 h8Q Rg6 Qf6 Rg7 Ra2 Rh7 Qd3 Be8 Rd2 Rc6 Qc2 Re6 Qb2 Kc8 b7+ Kc7 b8N Kb7 b6 f3+ Kg1 g2 Nc6 Bb8 Ng3 Ne3 Nh1 Bg3 Qc2 Qc5 Bd3 Qc3 Bc4 Qa3 Qd1 Bf4 Kf2 g1R Qe2 Rd1 Ra2 Rd4 Kg1 Bg3 Rg2 Kc8 b7+ Kc7 b8B+ Kb7 Bf4 Bd7 e5 Re4 Qfg5 Nf5 Rh2 f2+ Kg2 f1R Qf6 Ne3+ Kh3 Bh4 Rg2 Be8 Bh2 Bg3 Rf2 Nf5 Kg2 Bd7 Qef3 Be8 Rfd2 Ne3+ Kh3 Rf4 Qe2 Bg6 Bc5 Re8 Bb5 Bc2 Be7 Rac4 Bb4 Rce4 Bd3 Re6 Bc4 Nf5 Kg2 Bb3 Qfh4 Ba4 Qf6 Ne3+
r5N1/2n1Q1qk/qQrR3N/BP6/2q1R2b/1Qb1P2n/RKp1N1P1/1BB2b2 w - - 0 1 illegal: No possible last move
n2r2Bq/QRN5/3NPb1N/4Q1RB/3n2nP/p3r1PK/kqbR3r/2BQ4 w - - 0 1 illegal: No proof kernel
b2R4/3Nq3/P2nQBQ1/1P1QR2p/3R1bNn/2P2B1K/r1r3qN/b1kB3n w - - 0 1 illegal: No proof kernel
RB1b3N/2RQ1P1q/1RNbp3/PP6/r1q1Q1KQ/nrk3B1/4Br2/2n1Nb2 w - - 0 1 illegal: No proof kernel
2k5/b1p1Kn1r/3Q1R1N/2P1B3/qq2R3/brP1rPn1/QN2qBB1/1Q2RN2 w - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 f5 exf5 b4 d3 b3 axb3 Ba6 b4 Bc4 dxc4 Nh6 b5 Ng8 Ke2 a5 Kd3 g5 Kd4 e5+ Kd5 e4 h4 e3 b4 a4 f3 e2 b6 e1Q h6 g4 c3 d6 b7 Kd7 h5 a3 b5 a2 b6 g3 f6 g2 h7 Qc8 c5 Qe2 h6 Ra3 f7 Nc6 b8Q Rb3 b7 Nd8 Nh3 g1R Qa8 Qb8 Bg2 Re1 Be3 Be7 f8Q Nf7 Nf2 Bg5 Nd2 Bf4 Rb1 a1B Rh4 Bb2 Nf1 Ba3 Nd3 Bb4 Bf2 Bc1 Re4 Bca3 Nb2 Ba5 Ra1 Bb6 Qb1 Qe3 Qa6 Ba7 Qe2 Qf4 Qec2 Qe8 b8R Re3 Rb6 Kc8 Qe2 Ne7+ Ke6 d5 Rc6 Rg8 h8N d4 h7 Nf5+ Kf6 d3 Qd6 d2 Rb6 Ne5 Nf7 d1Q h8B Qa4 Nh6 Ng3+ Ke7 Nf7 Be5 Rg7 Qec2 Qe2 Qa2 Qaa6 Re1 Qa4 Qcb1 Qg4 Qd4 Qb4 Rf6 Rh7 Qd6 Qd7+ Kf8 Qc6 Ke7 Qca4
qn1BN1q1/kP1b3N/3Q1p1R/3Q4/N2n4/3R2rB/Qr2RPPB/r2bKn2 w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 d5 dxc5 b5 a4 d4 axb5 d3 e3 Bg7 Ra4 Bd7 Ra1 Bd4 exd4 Bc8 b4 Kd7 c4 Kc7 g6 Kb7 g7 e5 c6+ Kb6 c7 h5 d5 a5 d6 f6 d7 a4 c5+ Kb7 c6+ Kb6 Nh3 h4 Be2 a3 Nc3 e4 Ng5 a2 Bf4 e3 Bh2 h3 Bg4 e2 Na4+ Ka7 b6+ Ka6 b7 Qe7 d8B Qe6 b5+ Ka7 Nh7 Bd7 c8R Ne7 g8Q Nf5 c7 Nd4 Qc2 Qf7 Rd1 a1R Qa2 Qg7 Qgc4 Rg8 Qd5 Qf7 Be6 Rg3 Bf5 Qg8 b6+ Ka6 Be7 Rb1 Re8 Rb2 c8N Ra7 Nd6 Ra8 Rf1 Ra7 Bd8 Ra8 Bg1 h2 Bh3 h1N Bh2 Qg6 Rh8 Qg8 Rd2 Ra7 Rc2 Ra8 Ne8 Ra7 Kd2 Ra8 Rd1 e1Q+ Kc1 Qee6 Kd2 Qc6 Ke1 Qc8 Re2 Ra7 Rc1 Qc6 Rc3 d2+ Kf1 d1B Rd3 Rg6 Ke1 Ng3 Nf8 Rg4 Rh6 Nf1 Nh7 Qc8 Qb1 Rg3 Qba2 Nbc6 b8Q Ra8 Qbe5 Nb8 b7 Ka7 Qed6 Nbc6 Qa1 Ka6 Qb1 Ra7 Nc3 Qa8 Nc7+ Kb6 Qa1 Raa2 Ne8+ Ka7 Na4 Nb8 Qb1 Ra1 Qc2 Rb3 Qa2 Rb2
qn5R/P1k5/2bbRBnK/1PqBQp2/1nr1N3/B2N3N/Q1RP1Qq1/3r4 w - - 0 1 illegal: No proof kernel
8/P5QB/r1r4R/pnq1BnNq/1k2Nb1B/3Rq3/1PP1Q2Q/bRNbK3 w - - 0 1 illegal: Other
1r5Q/p2P1n1R/3BnNN1/Pkq1Q3/4b3/1K1r1nqP/Bb2r1B1/2QR1RN1 w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 d4 Kd7 Kd2 e5 Kc3 g5 a4 b5 f4 b4+ Kb3 e4 a5 e3 f6 e2 d6 Kc6 d5+ Kb5 d7 g4 d6 g3 h6 g2 c6 Bg7 c7 Kc6 f5 e1Q h7 Bh6 f7 Ne7 f8Q Bb7 c8B Ng6 f6 Na6 f7 Nc7 Qg7 Qf8 d8R Qg3+ Nc3 Ne5 Ba3 Ne6 Qc1 Rb8 h3 Be3 Rd7 Bd4 Qgg5 Qe7 f8N Nf7 Ng6 Rd8 h8Q Re8 Qgf6 Kc5 Bc4 Be4 Bb7 Qf8 Re7 Be5 d7 Bd4 Nf3 g1N Nd5 Bc3 Qe5 Bb2 Bc8 Kc6 Rb1 Kc5 Nf6+ Kc6 Bd5+ Kb5 Bcb7 Bd3 Nfh4 Nf3 Rd1 Be4 Ba8 Nh6 Rh7 Qc5 Nf4 Nf7 Ne2 Rb6 Ng6 Rd6 Ng1 Rb8 Bdb7 Rd5 Rf1 Rd1 Bd5 Rd3+ Qcc3 Re8 Rbd1 Rb8 Kc2 Re8 Ba2 b3+ Kb1 Rb8 Ne7 Bc1 Ne2 b2 Kc2 b1R Bb7 Bf5 Rd2 Nh4 Ng6 Qd5 Ng1 Bb2 Bd6 Qc5 Kb3 Re1 Rd1 Re2 Bh1 Nf3 Bg2 Rd5 Qce3 Be4 Qc1 Rd3+
b1nN1kBR/n5n1/1r3r2/1N2Q3/1bRP2q1/K1P1pnNQ/1RQPBn2/6B1 w - - 0 1 illegal: No proof kernel
Q2R1KbB/2q2NP1/R5R1/PQ2n1Q1/nr1b2n1/6rB/N2r1P1p/N1Brk3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 c5 Kf4 b5 Ke5 h5 a4 e6 g4 c4 d4 b4 a6 c3 f6 Kg6 a7 h4 d6 c2 d7 b3 f7 b2 d5 h3 d6 h2 Na3 b1R Bh3 Rb5+ Qd5 Na6 Ne2 Nh6 Nc3 Nc5 Na2 Qc7 d8R Rb4 Rg1 Rg8 Qb7 Rb8 a8Q Rd4 Qb4 Rd2 Qb5 Be7 f8B Bf6+ Kf4 Bd7 Bg7 Bd4 Bh8 Be8 Rg3 Bf7 Rg2 Rg7 Rg1 Bg8 Rg2 Kf7 g6+ Kf6 Rg1 Nf7 Rg2 Ne5 d7 Rb7 a5 Na4 Rb1 Rb6 Ke4 Kg5 Rg1 Kh4 g5 Ng4 Rb3 e5 Kf5 Rh7 g7 e4 g6 e3 Rc3 e2 Rc6 Rb7 Ra6 e1N Rg2 Nf3 Rg3 Bc4 g8Q Nfe5 g7 Rh6 Qgd5 Rg6 Rg2 Rg5+ Ke6 Rg6+ Ke7 Rb8 Qe4 Bg8 Kf8 Kg5 Qed5 Kf4 Qdc5 Rb7 Qe7 Ke4 Qg5 Kf3 Bb2 c1R Nc2 Rcd1 Bc1 Rc6 Na1 Rc3 Re8 Rcd3 d8N Ke2 Nf7 Ke1 Rd8 Rg3 Qb4 Ra3 Qf6 Ne3 Rg6 N3g4 Qg5 Rg3 Qc5 Rbb2 Qb5 Rb4
1b5R/PQQN1BP1/7p/2Nbr1RR/1QP1NB2/2K1nr2/2nq1nr1/Br2k3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 f4 b5 a4 d5 g4 e5 c6 h6 f6 Ke6 a6 e4 f5+ Ke5 g6 Kd4 c7 b4 g5 b3 a5 b2 a7 Qe7 g7 Qe6 a6 Rh7 f7 Qe7 g6 Nd7 f6 Qe8 Nh3 Ne5 Bc4 Bb7 c8Q Qd7 Ra5 Ne7 g8R N7c6 Nf4 Nd3 Nc3 b1R Rh5 Nf2 Rh8 Nb4 Qc7 Bd6 f8B Rf7 Bg7 Rg8 a8Q Rff8 Qg4 e3+ Ke2 Rf7 a7 Rff8 Ke1 e2 Kd2 e1R f7+ Re5 Ne4 Bc6 Qac8 Ba8 Q7b7 Bb8 Nd3 Qd6 Qcc7 Qd8 Ndc5 Qg5+ Ke2 Qd2+ Kf1 Ke3 c3 Rd8 f8N d4 Nfd7 d3 Bf7 Nc2 Bf6 Rgf8 g7 Rde8 Rb5 Rg5 Qh4 Rg2 c4 Re7 Ba1 Re5 Qe7 Kf3 Qa6 Bd5 Qab7 Qa5 Qed6 d2 Qe7 d1N Bf4 Nb4 Ke1 Ne3+ Kd2 Nbc2+ Nc3 Qa2 N3e4 Qb2 Rg5 Qa2 Kc3 Ke2 Na6 Ke1 Qb4 Rfe8 Rh5 Rf5 Nac5 Ree5 Rb6 Qa5 Rg6 Qa2 Rgg5 Qa5 Bh2 Rf3 Bf4 Qa3+ Nb3 Qc1 Nbc5 Qd2+
b6N/N4q1p/BPQP1R2/2nN1P1R/8/2KnQ2n/4Rrkr/BQbB1nq1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 d4 Kd6 Kd2 c5 g4 a5 b4 e5 f6 a4 b6 a3 g6 a2 g7 e4 f7 c4 b5 e3+ Kc3 e2 b7 e1Q+ Qd2 Qb6 g5 Qa6 g6 Qe5 f5 Be7 f8R Bg5 Ne2 Qe4 Rh5 Qb6 Rf6+ Qe6 Nf4 Nh6 g8Q Ng4 g7 Nf2 Qe3 Nh3 Bb2 Na6 Ng6 Nc5 Qe8 Rg8 Nh8 Ra6 b8N Bb7 Nc6 Ba8 Na7 Bh6 Qg6 Rb8 g8B Re8 Qe2 Bc1 Qe3 Re7 Qgg1 Rg7 Be2 Rg2 Bd1 Rf2 Bf7 Ra4 Be8 Ra5 Bd7 Rh2 Bc8 Rf2 Ba6 Rh2 Kb4 c3 Qf1 c2 Nc3 Ra3 Rb1 Rf2 Ba1 Rb3+ Kc4 Rb2 Qfe1 Ne4 Qg1 Ng3 Kd3 Qc5 b6 Nf1 Qg2 Qc7 Qg1 Qg7 Qh1 Qg1 Qhf3 Kd7 d6 Qf7 Nd5 Rh2 Nb5 Kc6 d7+ Qe6 d8Q Rf2 Rf8 Qf7 Qh4 Rh2 Qhe1 Rf2 Na7+ Kd6 Nf6 Rh2 d5 Rf2 Ne4+ Ke5 d6 Rh2 Kc3 Rf2 Qe3e2 Rh2 Qh1 Kf4 Nf6 Rf2 Qc6 Kg3 Nd5 Kg2 Qa4 Bg5 Qeb5 c1N Qe3 Nd3 Rc1 Rbd2 Rc2 Rde2 Qb1 Bh6 Qed4 Bc1 Qc6 Rd2 Qe3 Rde2 Bb2 a1N Rd2 Nb3 Ba1 Nbc5 Rc2 Qe8 Rf6 Qf7 Ra2 Kh1 Rd2 Rh2 Ra2 Ref2 Re2 Kg2
kb4q1/n2p2Q1/1R4r1/1B1KBPRr/N2Q2qB/1NbP4/2q3PR/2nqQ2N w - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 g4 cxb5 g3 a4 Kf7 a5 Qe8 a6 Bb7 axb7 Qd8 b6 Bh6 b5 Bf8 hxg3 Bg7 g4 Ke8 g5 Bf8 Ke2 e5 Ke3 h5 Ke4 c5 f4 a5 d3 c4 g6 h4 f6 a4 g7 c3 f5 h3 Nd2 c2 Kd5 h2 Rb1 e4 Ne2 e3 Ng3 e2 Nb3 e1Q Bg5 c1Q Bh4 a3 Be2 a2 Bf3 Nc6 b8B a1B b7 Bc3 b6 Na7 Be5 Qe2 b8Q Qcc2 b7 Rh5 Qe1 Bd6 Qc7 Qed1 Qc4 Bb8 Qd4 Qc8 Rb2 Kd8 f7+ Ne7+ Ke4 Bd6 g8R+ Kc7 b8N Kb7 f8Q Ng6 Qg7 Nf4 Na6 Ne2 Kd5 Nc1 Nac5+ Kb8 Be4 Qg4 Na4 Qd8 Qh8 Kb7 Rg5 Bb8 Qg7 Qe8 Rf1 Qh8 Nh1 Qc8 Rf3 Qe8 Rh3 Qg6 Ng3 h1Q Rh2 Qf1 Nh1 Qh7 Qe2 Qfd1 Qe1 Qg8+ Kc5+ Nc6 Bd5 Ra7 Bc4 Ka8 Bb5 Ra6 Rb1 Na7 Rb2 Qh8 Kd5 Rg6 Bc4 Qe8 Na1 Na2 Rb6 Qd8 Bb5 Nc1 Nb3 Qg8+
8/2p2Bq1/br2PNQ1/5RP1/5rN1/kqPQB1RK/qr5Q/n1nRB1rN w - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 f4 Bd6 f5 Nc6 f6 Ba3 g6 Ba6 g5 Bc8 axb3 Bf8 b4 Bg7 fxg7 Nb8 b5 Ba6 Bf4 Bb7 Bc1 Bc8 Kf2 Ke7 Kg2 h5 b4 f5 e4 a5 b6 d5 b5 d4 b7 a4 b6 h4 e6 Kd6 e7 Kc5 e8Q Kb4 e5 a3 e6 d3 Nc3 d2 Kh3 f4 Nf3 a2 Nh2 f3 Rg1 f2 Bd3 f1R Rg3 Nd7 b8R Qf6 b7 Ne7 g8N Qg7 Ne2 Rf4 Ng4 Nc5 N8f6 Ra6 Ra8 Rc6 b8B Nf5 Ra5 Rb6 Ba7 Nb3 Rd5 Rh7 Qh8 Nfd4 Rf5 Ba6 c3+ Ka4 Qc2 d1Q Bd2 Ka3 Be1 Nc1 Be4 Rh5 Qd3 Nc2 Bc6 Rh7 Be8 Rh6 Rb1 a1Q Bf7 Qa2 Qh7 Na1 Qh8 Qh7 g7 Qdb3 g8Q Qg7 Qhh7 Rh5 Qg6 Rh8 Q8h7 Rhb8 Qhh6 Rd6 Be3 Rdb6 Rg2 R8b7 Ng3 Rb8 Nh1 R8b7 Kh2 h3 Kg3 h2 Kh3 Ne2 Rd1 Nc1 Qh4 Rb8 Qf2 R8b7 Rg3 Rb8 Qg1 R8b7 Nhf2 h1R+ Qh2 Rg1 Nh1 Rb8 Qd5 Rd8 Qb5 Rd2 Qd3 Rb2
1k4B1/1B2RnP1/n6B/1bQ4R/2K1p2Q/r1Nr3r/N1bQPbPr/NRb5 w - - 0 1 illegal: Other
NB2Bn2/Q1K4P/2R1Q3/2rN3r/b1knR1r1/ppP4N/2QR2P1/b2n2Bq w - - 0 1 illegal: No proof kernel
1R1r1q2/Q3PR1n/1pb3Bb/1B2BQ1K/1PN3N1/3Pr2N/R2p4/b1k1nnQ1 w - - 0 1 illegal: No proof kernel
1n2b2r/Q1q2qB1/4R1P1/1NPkb2B/6QB/pr3pn1/NP3RNb/QK3R2 w - - 0 1 illegal: No proof kernel
5R1B/p2pB1Pk/1RB1b1N1/1Qr2P2/3N3q/bnq2P2/K2Q3Q/N1Rqr1n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 Kg7 Kb3 e5 c4 h5 g4 e4 b6 h4 b7 h3 c6 e3 g6 h2 c5 e2 g5 e1Q f3 Be7 c7 Qc3+ Ka2 Qd3 b4 Bf8 c6 Qe3 b5 Bd6 b6 Be5 Nd2 Nh6 Rb1 Qe8 Bb5 Qe4 Nb3 Qd5 Ba3 Ng4 Qd2 Qd3 Ne2 Rh3 Na1 Nf6 Rhc1 h1Q Be7 Nh7 Nd4 Kg8 g7 Na6 b8Q Bb7 c8Q Qd1 c7 Bd6 Bc6 Nc5 Qd8 Rg3 c8N Qc3 Qdc7 Qh5 Rb4 Ba6 b7 Nb3 Rb6 Ba3 Qcf4 Rg2 Qh2 Qh4 Qbe5 Be2 b8B Bc4 Qb5 Rg1 Be5 Re1 B5f6 Be6 Be5 Kf7 g8R Rb8 B5f6 Rb7 Bh8 Rc7 Ba8 Rc4 Bc6 Rc5 Rd8 Nf8 g6+ Kg8 g7 Kh7 Re8 Ng6 Rf8 Nf4 Nd6 Bb4 Nc4 Nh3 Ne5 Ba3 Ng6 Ng1
q3NQr1/Q1R1R1N1/bbp1Br2/2b1bP2/1RNpk2B/2P3BP/1n3Qn1/6K1 w - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Ke7 Kf2 d5 b4 g5 e6 Kd6 h3 a5 f6 a4 h6 c6 f5 Ke5 b6 d4 b7 g4 e7 a3 e8N a2 c3 Ra6 h7 Qc7 b5 Qb6 f7 Ra4 Bf4+ Ke4 Na3 Qa5 b6 Ne7 Bg3 Rg8 h8B Nd5 Qe2+ Ne3 Nc4 Na6 b8Q Bc5 f8Q Nb4 b7 Bb6 Nf3 Qa8 Bf6 Ra7 Bfh4 Nd3+ Kg1 Nb2 Qf2 Ng2 Rb1 a1B Ng5+ Kd5 Ne6 Ke4 Bd6 g3 N6g7 Bc5 Qc7 Bb6 b8R Ba6 Rc8 Rb7 Qb8 Rf7 Qa7 Rf6 Rc7 Nd3 Bg5 Bb2 Bh4 Ba3 Rb4 Nb2 Be2 Rg6 Bd1 Rh6 Bb3 Rf6 Ra4 Bac5 Rb4 Ne1 Ba2 g2 Bdg3 Kd5 Kh2 Ke4 Rf1 g1B+ Kh1 Ng2 Re1+ Kd5 Ree7 Bh2 Be5 Bf4 Kg1 Bd2 Beg3 Bf4 Ne5+ Ke4 Be6 Rf7 Nc4 Rf6 Rb5 Bfd6 Rb4 Be5
3qRQ2/B1kn3p/5NPn/3B2rq/NQ2R2N/1bp1n1KB/rqP3P1/4R1Q1 w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 g5 fxg5 e4 h4 e3 g6 Qe7 dxe3 Qg5 e4 Qd8 e5 Bg7 Bg5 Bh6 Bc1 Bg5 hxg5 Kf8 Nf3 Ke7 Ng1 Ke8 Kf2 c5 e4 d5 b4 Kd7 b6 a5 g7 f5 b7 c4 b5 a4 e6+ Kc7 e5 d4 g6 a3 e7 f4 e8N+ Kb6 e6 a2 e7 d3 Be3+ Qd4 Nf6 d2 e8R f3 Kg3 f2 Rh4 Bf5 Be2 f1Q Nc3 Be6 Bg4 Qf5 Na4+ Kc7 Nf3 c3 Bh3 Bc4 Rhe4 Qd8 Ba7 Bb3 Nh4 Qh5 Qg1 Nh6 g8B d1N Bd5 Ne3 Re1 a1Q b6+ Kd6 Nb2 Rf8 Na4 Nd7 b8Q+ Qc7 b7 Qb2 Ng4 Rf5 Nf6 Re5 Qc8 Qd8 Qc4 Rf5 Qb4+ Kc7 Bc4 Kc6 b8Q Rb5 Qf8 Rc5 Qb4 Kc7 Bd5 Ra5 Bd4 R8a6 Ba7 Rb5 Nc5 Ra2 Na4 Rc5 Bc6 Rf5 Bd5 Rg5+
3R2R1/pK1N2p1/1Q1n2Qq/PnPr1B2/1kq1n3/2r2N2/3P3q/NB1Rb1BQ w - - 0 1 legal: proof: g4 d5 e4 c5 exd5 e5 b4 h5 gxh5 e4 bxc5 e3 f3 Bf5 Ba3 Ne7 Bc1 Be4 fxe4 Ng8 Ke2 Kd7 Kd3 f5 Kd4 b5 a4 e2 c4 e1N h4 b4 c6+ Kd6 c5+ Ke7 d6+ Ke6 e5 b3 d7 f4 a5 b2 h6 f3 h7 f2 c7 Bd6 c8B Ng2 h5 Nf6 h6 Ne3 Bd3 f1Q Qg4+ Qf5 Na3 b1Q Bb2 Ned5 Nf3 Nh5 Qg6+ Qff6 Nc2 Re8 h8R Nb6 h7 Qc7 Rg8 Rf8 h8Q Qf1 Rd1 Na6 Na1 Nc4 Bb1 Ng3 Rh3 Ne4 d8Q+ Qd7 Qb6 Nc7 Qhh5 Rd8 Rg3 Rb8 Qh1 Qe2 Rh3 Qh2 Rhh8 Rb7 Qg5 Qfh6 Qg6+ Ke7 e6 Qb5 Bd7 Bg3 Bc3 Qa4 Bb2 Nb5+ Kd5 Bh4 Kc6 Ncd6 Bd4 Qc4 Bg1 Be1 Bc8 Rdd7 Rd8 Rb8 Rhg8 Rbb7 Qg3 Kf6 e7 Ke6 e8N Nbc3 Qb2 Rb3 Nf6 Ncb5 Qg6 Rc3 Qb4 Na3 Qb6 Nab5 Bb7 Nf7 Ba6 Rd5 Kb7+ Nfd6+ Kb8 Re5 Nd7+ Kd5 Bc8 Qd3 Qc7 Kc4 Qb6 Kb4 Ka8 Rd5 Kb8 Nc4+ Kb7 Qf1 Nb8 Qd3 Bf5 Qd4 Nd7 Ncd6+ Kb8 Qc4 Ka8 Nf7 Kb7 Nfd6+
2R2Q1r/Qp3R2/3BrPB1/2N2N2/1K2QPrB/1P1nN1R1/r3pk2/4rqbn w - - 0 1 illegal: No proof kernel
qn3r2/4Q1RB/p1P4n/2qQQq1p/1qNKBb2/Pk1P1RR1/7N/1bB4N w - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 f4 d5 exd5 a6 fxg5 Bh6 g4 Bb7 h4 Nc6 g6 Qc7 h5 Nb8 c6 Bf8 g5 Bc8 g7 Qd8 Rh2 Ra7 Rh1 Rd7 Ke2 Rd6 Ke1 Rg6 hxg6 Qd6 Kf2 Qd7 Ke1 Qd8 Ke2 e5 Ke3 Ke7 c4 Kd6 c7 Kc5 d6 Kb4 d3 h5 d7 f5 a3+ Ka5 c5 b4 c6 b3 Ne2 Ka4 Bg2 e4 Kd4 e3 Rf1 f4 Rf3 Qe7 d8Q Nf6 g8B Ne8 g7 Nd6 g6 Nf7 Bh7 Nh6 g8R Be6 Qe1 b2 c8N Kb3 Ng3 e2 g7 Qg5 Ra2 Bd6 Nh1 Qa5 Qg3 e1Q Nb6 Qeb4+ Nc4 Qab5 Qe7 Q5c5+ Ke4 Be5 Qgg5 Bc7 Qe5 Qb7 Rg3 f3 Ra1 f2 Nbd2+ Ka4 Bf3 b1Q Nf1 Q1b4 Nh2 f1Q Rf8 Qff2 g8Q Qa8 Rf7 Bd6 Rfg7 Kb3 Ra2 Qf1 Rf2 Qh3 Qgf7 Rf8 Qff5 Bc7 Qd5 Bf4 Qfe5 Bg4 Bg2 Bd1 Rf1 Bc2 Rff3 Qd6 Kd4 Bb1 Rf1 Qhd7 Bge4 Qf5 Rff3 Qdc5+
3Br1r1/5N2/QRpp2P1/nQ2N3/RR1Q1nPP/pB3q1k/NK2bb2/3B1n2 w - - 0 1 illegal: No possible last move
R1R5/1kq2Q1p/3pp1q1/3PPNnN/5R2/BN1nBB1P/1b3q1Q/KQ4rb w - - 0 3 legal: proof: c4 a5 f4 g5 fxg5 c5 b4 b5 bxc5 Nf6 a4 Ra6 axb5 Rb6 cxb6 Ng8 c5 Bg7 Nc3 Bh6 Nb1 Bf8 d4 f5 Kd2 a4 Kc3 a3 g4 e6 e4 a2 Kb2 f4 d5 f3 b7 f2 c6 Bh6 b6 Bf8 c7 Ne7 h3 Ng6 Nd2 Bd6 Ngf3 Nf8 g6 Nc6 b8Q Bh2 b7 Qf6+ Nd4 Be5 g5 Bf4 g7 Qg6 g8N Ne5 Bg2 f1Q N2b3 Nf3 Nf5 Qf2+ Qe2 d6 e5 Bd2 Rf1 Nd7 Bh1 Nc5 Nf6+ Kf7 Bg2 Rg8 Nh5 Ke8 Bh1 Kd7 Bg2 Qg7 g6 Ng5 Bf3 Qe7 g7 Nd3+ Kc2 Qf7 Ba3 Bc1 Kc3 Qg6 Qb2 Re8 g8Q Re7 Qf8 Rg7 Qb1 Rg8 Qa7 Rg7 b8B Ba6 Qf7+ Kc8 Qc5 Rg8 Ba7 Kb7 Qc4 Bb5 Qf4 Rg7 Bb6 Ba4 Qh2 Rg8 Nd2 Bd1 Nb3 Be2 Be3 Rg7 Rg1 Bf1 Rg4 Bg2 Rf4 Bh1 Qc2 Qf6 c8R+ Qe7 Rb1 a1Q+ Rb2 Qb1 Ra2 Nc5 Qb2 Qc7 Qa1 Qe4 Qb1 Rg8 Nfg3 Qg6 Nf5 Bd2+ Kb2 Nd3+ Ka1 Bc1 Rf8 Rg7 Rc8 Qh6 Re2 Ne4 Ra2 Rg1 Bac5 Ng5 Raa8 Qg6 Ba3 Bb2+
R1q2n1N/1B2Q3/KrpRR2Q/P1P3b1/b2p4/r6p/1N1BPN1b/BQ1b1k2 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 f5 bxa5 e5 dxe5 Nc6 gxf5 g4 h4 Nd4 Be3 Ne6 Bc1 Ng5 hxg5 Kf7 Nf3 Ke7 Ng1 Ke8 Kd2 Kf7 Kc3 h5 Kc4 d5+ Kb5 b6 a4 g3 f4 h4 c4 g2 g6+ Ke7 a6 Rh7 e6 Kd6 a7 Re7 g7 Bb7 f6 Nh6 g8Q Qb8 a5 Bg7 f7 Bf6 f8N Rf7 e7 Bc6+ Ka6 Kc5 e8Q b5 f5 b4 Nc3 b3 Ng6 b2 Nh8 b1B Qg6 Ba4 Bd2 Kd4 c5 Bbc2 Nh3 g1B Qe7 Bh2 Bg2 Ng8 Nf2 Bg5 Qb1 Nf6 Qh6 Nd7 f6 Nf8 Ncd1 h3 Nb2 Bcb3 Ra3 Bd1 Re3 Qd8 Be4 Rb8 a8R Rb7 Bf3 Qc8 Re6 Rg7 f7 Rb3+ Ka7 Ra3 Bg2 Rg6 Be4 Nd7 f8B Rf6 Bg7 Nf8 Bc3+ Ke3 Bg2+ Kf4 Bd2+ Kg3 Rf1 Rg6 Bgc3 d4 Bb7 Rf6 Ka6 Rg6 Nbd3 Rf6 Ba1 Rg6 Nb2 Rf6 Ne4+ Kg2 Rf5 Rg6 Rd5 Kf1 Rdd6 c6 Nd3 Rg7 Nb2 Rf7 Nf2 Rff3 Rg6 Rfb3 Rge6 Rb6+
3kN3/rpp2KBp/Q1BNr1r1/Q7/rP1b2Q1/R1PP1nb1/1R3RN1/4B2n w - - 1 2 illegal: No proof kernel
2k1r1r1/p1Bp1p2/3P2N1/2Q2qR1/1n3rn1/1K1qQP2/3Pq1BN/RQ1R1NB1 w - - 0 1 legal: proof: b4 h5 g4 b5 gxh5 e6 a4 Ba6 axb5 Nh6 e4 Qe7 b6 Bb7 c3 Ng8 b5 Bd5 exd5 Qf6 Qf3 Qg5 Qd1 Bb4 cxb4 Qd8 h4 c5 b7 g5 h6 g4 d6 e5 b6 g3 h5 e4 b5 e3 h7 g2 h6 c4 Qe2 c3 Kd1 Nc6 Kc2 Qf6 b8Q+ Nd8 b7 Qg5 b6 Ne7 Na3 Rg8 h8R Qg3 h7 Qg7 Qc8 Ng6 b8Q Qf8 b7 Rg7 Nf3 g1R Qc5 Ne5 Rg8 R1g4 h8N Rf4 Ng6 Ng4 Kb3 c2 Bb2 c1Q Nc2 Qb1 Bg2 Qf1 Qd3 e2 Ne3 e1Q Nh2 Qb1 f3 Qe2 Qdd4 Qf5 Rhd1 Qed3+ Bc3 Qe2 Nef1 Qed3 Nh8 Rg6 Qe3+ Re6 Rg7 Qe7 Rg5 Re5 Ng6 Ree4 Qbc7 Nc6 b8B Nb4 Qb7 Kd8 Qbb5 Re6 Bc7+ Kc8 Qbb6 Qef6 Qbb5 Re8 Qbb6 Qe2 Bd4 Q6e5 Qbb5 Qee4 Qbd3 Rg8 Qb1 Rb8 Qec3 Q4d3 Bg1 Rb5 Qe3 Re5 Qc5 Ree8 Qe3 Qdb5 Qcc5 Qbd3+
1RBQ2B1/QPrR4/3pNNQN/5bn1/1p3np1/1b2p2R/KP4Pb/B3k2q w - - 1 2 illegal: Other
1Kr1Q2N/NnR2p1P/NB5k/2Qp4/1B4q1/rRn2P2/2RP1q1n/bBQr3b w - - 0 1 illegal: No possible last move
3kNR1Q/B1qp2B1/R2P1P2/3QN1rn/p5K1/3bQrp1/Pq2b3/nB1Rb2N w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 c5 bxc5 Nf6 g4 Ng8 gxh5 Qa5 Qe2 Qb6 Qd1 Qd8 Ke2 a5 Kf3 g5 d4 e5 c4 b5 h4 a4 d5 b4 f6 b3 c6 b2 h6 e4+ Kg4 e3 f4 e2 h5 e1Q f7+ Ke7 c7 Qc3 h7 Qf6 f5 Ra7 h6 Rb7 c5 Qd6 c6 Qh2 Bd3 Qe8 Nd2 b1B Nc4 Na6 Ne2 Rb3 Be3 Nb4 Ng3 Qd2 Ba7 Qc3 Ne5 Bg7 f8R Ba6 c8N+ Kd8 Nd6 Qb2 c7+ Ke7 c8Q Qd8 Be4 Qc7 Ne8 Bbd3 Qg1 Bf6 Qe3 Nc2 Rad1 Na1 Qb7 Kd8 d6 Bg7 Rh5 Rb5 Nh1 Nf6+ Kh3 Rg8 h8Q g4+ Kh4 g3 h7 Be2 Bb1 Rb3 Qc6 Bad3 Qd5 Ra3 Rg5 Nh5 f6 Bh6 Rf5 Rg4+ Kh3 Rf4 Rg5 Rf3 Kg4 Rc3 Qg7 Rc6 h8B Rc5 Qh7 Ra5 Bg7 Rb5 Rf5 Bf4 Qh8 Rc5 Qed4 Bd2 Qe3 Be1 Rf4 Bb5 Rb4 Bbd3 Rb6 Rb5 Ra6 Ra5 Qf7 Rd5 Nc4 Re5 Qd5 Ref5 Ne5 Rg5+
R2Q1Brn/nNp1N1q1/5q1P/3RBp2/3b1P2/kbPR3Q/1r4p1/NbKB3Q w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 Kd2 Ke7 f4 d5 b4 g5 h4 f5 e4 a5 b6 g4 c3 g3 b7 g2 b5 d4 h6 d3 h5 a4 h7 a3 e6 Kd6 e5+ Kc5 e7 a2 e8Q Qd6 h6 Qc6 e6 Qe4 e7 Na6 b8Q Qc4 b6 Bd7 b7 Nf6 Ba3+ Qb4 Nf3 Ng8 Qbd8 Be6 b8R Bg7 Kc1 Bd4 Nh4 Kc4 Rb5 Nb8 Rd5 Nc6 Rh3 Rb8 Be2 Na7 Qh1 Kb3 Ng6 Qa4 Bd6 Qd7 Nd2+ Ka4 Ba3 Rb2 Nb3 Bf7 Bd6 Be6 Be5 Ka3 Bd1 Bf7 Bg7 Be6 Bf8 Bf7 Rb1 a1Q Rg3 Qa2 Na1 Qe6 Qb5 Qf6 e8N+ Ne7 Nd6 Rg8 h8B Qc4 Qb6 Qc6 Rh3 Qg7 Nb7 Qcf6 Rf3 Nc8 Qe6 Na7 Qe3 Be6 Rc5 Ba2 Rd5 Rb5 Rb4 Bb1 Rc4 Rb2 Rb4 Nec8 Ne7 Nd6 Rb6 Nf7 Rbd6 Re2 Rf2 Rb2 Qeh3 Qgg5 Bhg7 Nh8 Rd7 Qd6 Be5 Qg7 Rf3 Qc6 Qe8 Qd6 Rd8 Qdf6 Ra8 Ka2 Ba4 Ka3 Qd8 d2+ Kd1 Rb6 Rd3 Rb4 Ke2 d1B+ Kd2 Rb2+ Kc1 Bh5 Bc2 Be8 Bb3 Ba4 Bd1 Bb3
2r5/P6k/Q1P1B3/2Kn4/q1P1r3/b2rRNR1/BbBpRN2/B1nr2BN w - - 0 1 legal: proof: g4 a5 d4 c5 dxc5 f5 f4 g5 fxg5 f4 e4 b6 b4 f3 bxa5 Bb7 g6 Bd5 h3 Be6 g5 Bg4 hxg4 f2+ Kd2 Ra6 Bg2 f1N+ Ke1 Ne3 Bf1 Nf5 exf5 Ra8 Kd2 h5 Kc3 d5 Kb4 e5 a4 d4 g7 Kf7 a6 b5 f6 Kg6 a7 e4 a5 e3 a6 e2 f7 e1B+ Nc3 d3 Rh2 h4 Qe2 h3 Nf3 d2 Ne4 Qb6 Ng3 Ne7 g8N Qd6 Nh6 Qd7 c6 Qc8 Kc5 b4 Bb2 b3 Nh1 Qb7 Ra3 Rh7 Ba1 b2 Re3 Kg7 g6 Bf2 g5 Qb3 Ng4 Rh4 c3 Kh8 g7+ Kh7 g8R Bg7 f8B b1R Rg2 Bg3 Ngf2 h2 Qd3+ Re4 g6+ Kh6 Qc4 Nd5 Bd3 Rd1 Bc2 Nf4 Bd6 Be5 g7 Kh7 Bc7 Qa4 Bb6 Bf6 Re8 Bgh4 Rg3 Ne2 Re6 Nc1 g8B+ Kh6 Bf7 Kh7 Qf1 Bg7 Re8 Bhf6 Ba2 Bh8 Qb5 Bfg7 c4 Bb2 Rd8 Bhf6 Rdd3 Bfc3 Re2 Ba5 Rde3 Bb4+ Kd5 B4a3 Bd4 Nd7 Qb6 Re8 a8B Nc5 a7 Na6 Bb7 Nb4+ Kc5 Ra8 Bc8 Rb8 Rg1 Ra8 Be6 Rc8 Ng3 h1R Qa6 Rh6 Ngh1 Rf6 Be5 Rff8 Bh2 Rfd8 Rg3 Rd3 Bg1 Nd5#
3N2R1/1Bq1B1n1/1q1Bp2R/2NQ1P2/1B4NB/brP1Pb2/5q2/knRb1K2 w - - 0 1 legal: proof: g4 d5 a4 c5 Bh3 b5 axb5 f5 gxf5 c4 Bf1 c3 dxc3 d4 h4 g5 Kd2 a5 Ke1 d3 cxd3 g4 Be3 Ra6 Bf4 Rg6 Bc1 Rg5 hxg5 Bd7 Qb3 Be6 Qd1 Bc8 f4 Kd7 b4 Kd6 d4 Kd5 b6 Kc4 e3+ Kd5 g6 h5 b5 h4 b7 g3 f6 h3 b6 h2 f7 a4 g7 a3 Nf3 a2 Ba3 g2 Nbd2 g1Q Bb4 Na6 b8B Nc5 b7 Ne6 B8d6 Qc7 b8B Nf6 g8R Ng7 Ne5 Ne4 Nb3 Bg4 f5 e6 Nc5 Nd2 Rc1 a1Q Be7 Qa2 Bh4 Nb1 Qd2 Bd6 f8B Qb3 Bfe7 Bd1 Ng4 Qg2 Be2 Rh7 Bf3+ Kc4 d5 Rh8 Ba5 Qbb6 Bb4 Qg3+ Kf1 Rh7 Nd7 Kb3 Bg2 Bc5 d6 Rh8 Qd3 Kb2 Bb7 Ka1 Qd5 Rh7 Nde5 Rh8 d7 Bd6 d8N Rh7 Rg1 h1B Nd7 Bhf3 Nc5 Qf4 Rh1 Rh8 Be1 Rh2 Bg3 Rb2 Rh6 Rb3 Bgh4 Qd7 Na4 Bc5 Bbd6 Qdc7 Ba5 Bb4 Nc5 Ba3 Bb4 Qg3 Nf6 Qh2 Ng4 Qf2+
n1n2B1B/5N2/KP5N/RQR3qq/1RB2r1r/pB5B/p1PP3q/1N2b2k w - - 0 1 illegal: Other
1R1n4/2B3qr/P2p4/2PB3N/1N3nnb/P2BQR2/1k1prR2/1B1BNqK1 w - - 0 1 illegal: Other
B1NR4/KR3rbP/2pBr3/3P1q1n/2Np4/R2q1r2/2RBQ2P/1bR2Nk1 w - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 f5 e4 e5 exf5 d5 a4 e4 axb5 Na6 d3 d4 dxe4 Nb4 e5 Nd5 cxd5 Ba3 Bg5 Be7 Bc1 Bf8 Ke2 Ke7 Kd3 g5 Kc4 a5 Kc5 g4 f4 c6 b4 a4 b6 g3 b5 g2 h6 a3 e6 Kf6+ e7 a2 h7 Qc7 b7 Bh6 e8N+ Kf7 b8B Be6 b6 Qb7 f6 Kg6 f7 Kf5 f8R+ Ke4 f5 Qd7 b7 Bf4 Kb6 Qf7 f6 Bg3 Nd6+ Ke5 Nc8+ Ke4 Rd8 Qd7 f7 Nf6 f8R Ra3 Nd2+ Ke3 Ngf3 Kf2 Ne5 g1R Bd6 Bf5 b8R Nh5 Ba6 Re1 Nec4 Be5 Bb7 Bg7 Ba8 Re8 Rf7 Rhf8 Rb7 Re1 Re7 Rf3 Ka7 Rf7 Re3 Bg6 Rc3 Bb1 Qc2 Ree7 Re1 Qh3 Nf1+ Kg1 Qe2 Qf5 Bd2 Re6 Rec1 Bd3 Rab1 a1Q+ Ra3 Qc3 Rb2 Bb1 Rbc2 Qcd3
3r2q1/1P1b2N1/2B2n2/R2qP3/RnNN2k1/1KBpP1q1/3pN3/R1bNQB2 w - - 0 1 illegal: Other
3R1NR1/1B3R2/r3N2p/b2R1N1n/4pK1P/1PRP1Q2/n3B2B/brn1k2r w - - 0 1 legal: proof: e4 c5 Qg4 d5 exd5 b5 Qh5 c4 Qd1 c3 bxc3 b4 Ke2 b3 axb3 Bd7 Ke1 Bc8 f4 f5 Ba3 e5 Bc1 e4 g3 Qe7 g4 Qe5 fxe5 f4 Qe2 Bc5 Qd1 Bf5 gxf5 Bf8 Kf2 Kd7 h4 g5 d3 a5 d6 Kc6 d7 Kb5 d8R f3 Ke3 h6 e6 g4 e7 f2 e8R g3 c4+ Kb4 c5 a4 c4 g2 c6 a3 c5 a2 f6 Ra6 f7 Bg7 f8N Ra5 c7 Bc3 c8B Rb5 c6 Rh5 c7 Rh7 Nh3 g1N Qf3 Ra5 Nd2 Nf6 Bb7 Rf7 c8R Ne2 Nc4 Na6 Nf4 Nh5 Nd6 Rff5 Bb2 Nc1 Be2 f1R N4e6 Rd1 Rh2 Rh1 Rf2 Rg5 Rc7 Rgg1 Nf5 Be1 Be5 Ra3 Rb1 a1B Rcd7 Ra4 Bf4 Kc3 Bh2 Nb4 Rd5 Nba2 Rb2 Ra6 Rc2+ Kb4 Rc7 Rf1 Rf7 Kc3 Rg2 Kc2 Rg8 Ba5 Ree7 Ng3 Kf4 Kd2 Rc7 Ke1 Rc3 Nh5+ Kg4 Rf2 Bf1 Rb2 Be2 Ng7 Kg3 Rb1 Kf4 Nh5+
QrRBk2q/4p2q/1RqR4/1nN1R1N1/bR5P/2B1P1P1/Nr1p2q1/5B1K w - - 0 1 illegal: No possible last move
4n1R1/1QK3R1/Br3np1/3BRRBr/1p1P2r1/4RPnp/3N3P/N1kNr3 w - - 0 1 legal: proof: f4 a5 b4 e5 bxa5 f5 e4 d5 exd5 e4 d4 Qf6 c4 Qe5 fxe5 f4 Kd2 f3 c5 Bd6 cxd6 f2 Bb2 Bg4 Bc1 Bf3 gxf3 Kf7 Nh3 Kf8 Ng1 Ke8 Ke3 Kd7 Kf4 b5 a4 c5 a6 h5 a5 e3 e6+ Kc8 Ke5 c4 e7 Kd7 e8R h4 a7 h3 a6 g6 Ra5 c3 Qb3 c2 Ne2 Nh6 Nec3 e2 Bg5 e1N Nd1 Rh7 Re7+ Kd8 d7 Kc7 d8N+ Kb6 Kd6 Nd7 Rg7 Rb8 a8R Nf6 a7 Rb7 Nc6 Nf7+ Ke6 Rh5 d6 Rb8 d7 Nd6 Nb4 Rb7 Re8 c1R a8B Rb8 d8R Nc2 Nd2 Ne3 Nb2 Nef5 Nc2 b4 Ba6 f1R Na1 Rfd1 Qd5 Rg1 Qe4 Rg2 Re1 Rg4 Re3 Re1 Nd1 Ng3 Rf5 Rb7 Ree7 Rb8 Rdg8 Rb7 Rf4 Ka5 Rf5+ Ka4 Qc6+ Rb5 Qc8 Rb6 Bd5 Nd7 Qb7 Nf6 Ndb3 Ka3 Ree8 Nfe4 Kd7 Nf6+ Kc7 Ka2 R8e5 Kb1 Nd2+ Kc1 Bf7 Re4 Bfc4 Rg4 Bd5 Nde8+
3B1n2/1Q1PBP2/B2N1R2/pP1b4/NRRB1p2/pK1n1n1N/1p3rk1/r3B3 w - - 0 1 illegal: Other
2b2rq1/R1KP1N1P/N3qB2/5NB1/Pb4Q1/1k1NrR1R/n3nr2/3q1bNB w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 c5 f4 b5 d4 g5 a6 e6 a7 c4 d6 g4 f6 c3 f5 c2 f7 g3 d5 g2 h6 Ba6 d7 Qc8 d8B Qc7+ d6 Rh7 h5 Qc6 f6 Qb6 d7 Ne7 Rh3 Bc8 Nc3 Na6 Ne4 Nf5 Nd6 Nd4 Nf5 Ne2 Bg5 c1Q Qd4+ Qc4 Qg4 Be7 f8N Rf7 h7 Rb8 Nf3 g1Q Bg2 Qd1 a8N Ka4 h8N b4 h6 b3 a3 b2 h7 b1B Ng1 Bd3 Nfg6 Nb4 Nf4 Na2 Nc7 Bb4 Bh1 Kb3 Na6 Rf8 f7 Qe3+ Kf6 e5 Be7 e4 Ke5 Rb6 Bd8 Rc6 Bdf6 Rc5+ Kd6 Qg3 a4 e3 Rc1 Qe4 Rc4 Ra5+ Rc5 Qe6+ Kc7 Bc4 Rc6 Rd5 Rb6 Rd2 Rb7 Qg2 Nd3 Bb5 Ra7 Bc4 Qd4 Rb2 Bf4 Qg8 B4g5 Nf4 Nd6 e2 Bg7 e1R Ne5+ Nd3 Qg4 Re8 f8R Re3 Rff3 Rf8 Nhf7 Ndc1 Nf5 Bf1 Nd3 Rf2 B7f6 Ne2
2N2b2/3Prn1Q/4P3/4B1N1/Rnkbn3/1N3b1K/1rNPb2R/2RBbBNq w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg2 f5 h4 g5 b4 c5 e4 a5 h6 g4 e6+ Kd6 h5 a4 e7 f4 e8B g3 b6 c4 e5+ Ke7 d6+ Ke6 b7 Kd5 b5 c3 d7 a3 e6 c2 b6 f3+ Kh3 g2 h7 a2 h6 f2 Na3 Ra7 Bh5 Nf6 Bb2 c1N Be5 Nd3 Qc2 Nb4 Bd1 N8c6 b8N Bb7 Na6 Qa8 Nc5 Nd8 Nb3 Nf7 Rh2 Ra5 Rc1 a1B Qb1 Bd4 Nc2 Rg8 h8R Ra2 h7 Rg7 Rg8 Bc6 h8N Rb2 b7 Ne4 b8N Bb7 Nc6 Qa1 Bd3 f1B Na7 Be2 Nc8 Bf2 Bb5 Be1 Ba6 Nfd6 Bd3 Re7 Nf7 Qa8 Ng5 Nf7 Rh8 Qa1 Rh4 Ba8 N1f3 g1B Rg4 Bd4 Ng1 Bf3 Bf1 Be2 Qa2 Kc4 Qa4 Nc5 Qc6 Qb1 Qe4 Bd5 Qg6 Bf3 Qh7 Ne4 Qf5 Na6 Bg2 Bh4 Qh7 Nf6 Re4 Qa1 Rb1 Kb5 Rf4 Bb6 Ra4 Bb7 N1f3 Bd4 Qh6 Nb4 Qh7 Bd3 Be2 Kc4 Rf1 Qe1 Rf2 Qh1 Ng1 Be4 Rf1 Bf3 Rc1 Ne4 Bd1 Bde2 Bf1 Be1
2RnB1b1/P4q2/1PN4b/1Nn1n1B1/Q1b1N1b1/N4R2/2r1P1Nr/2BRKb1k w - - 0 1 illegal: No proof kernel
b2B1Q2/4rP1N/B1b1b2n/2BR3R/NP1rBPKn/k2q3R/N1n1r1B1/6b1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 a5 Kf3 e5 g4 Ke7 b4 d5 c4 h5 b6 a4 c6 Kd6 c5+ Ke7 b7 h4 g6 d4 c7 a3 g5 a2 c6 Kd6 g7 e4+ Kg4 e3 f4 d3 g6 d2 Nc3 h3 Nge2 h2 Na4 Kd5 Bg2+ Kc4 Nec3 Be6 c8B e2 c7 Nd7 b8B e1R Bcb7 Rh7 c8B Bc5 Bbe4 Nf8 Bc7 Qd3 Bd8 Ne7 g8N Bg1 g7 Nfg6 Nf6 Nh4 g8R Re2 Rg5 Ra5 Qe1 Kb3 Rh5 d1B Be3 Rd5 Bc5 Ka3 Ba6 Rd4 Qf2 Bc2 Rd1 a1N Na2 Bcb3 Qg3 Bbd5 Qh3 Rf7 Nh7 Ba8 Qf3 Nc2 Qf2 Bc4 f6 Nef5 Qe3 Re7 f7 Be6 Rd2 Rdd7 Qd4 Bc6 Qg7 Rd4 Qf8 Bf2 Rf1 Bg1 Rf3 h1B Rh3 Ba8 Beb7 Rc4 Bbf3 Qb3 Bf1 Rce4 Rd7 Rd4 Bc6 Bhd5 Bg2 Qd3 Rd6 Bd7 Bcb7 B5e6 Bbe4 Bdc6 Rd5 Nh6+
8/2r2PQ1/2Bk2b1/bP1B1KRB/Rb6/1N3nrB/R2N1Pbn/qN2nrB1 w - - 0 1 illegal: No possible last move
b2RR3/3PbBPr/2P4k/R5b1/1nbKQ1q1/8/qNnBNBR1/rbNR4 w - - 0 1 illegal: No proof kernel
1R3NQ1/n1n2R2/3bR1N1/k5N1/1NqP1PPK/1r2bqBb/1q2r1N1/1B1q3B w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 e5 d4 h5 b6 a5 d6 Kc6 f6 a4 b7 Kb6 d7 c5 b5 c4 g6 h4 f7 c3 g7 c2 Bf4 c1B Nf3 e4 Na3 e3 Bg2 h3 Bg3 h2 Ne5 e2 f4 Ka5 Kf2 Kb4 b6 Bd2 Re1 h1Q Ng6 Rh2 Nc4 a3 Ne3 a2 Qb3+ Ka5 Qd5+ Bc5 f8N Na6 b8N Qc7 d8N Bb7 Nde6 Ne7 g8B Nc6 Ng5 Na7 Bh7 Qc6 Rac1 a1Q Qg8 Nc7 Na6 Rb8 Nb4 Qb2 Rc4 Ba8 b7 Bd6 Rc5+ Qb5 Rf5 Qd5 Rf7 Qc4 Bh4 Qf1+ Kg3 Qh1 Be4 Rf2 Ng2 Be3 Rf1 e1Q Bb1 Qed2 Re1 Qd1 Re2 Bc1 Re6 Be3 Be4 Re2 Bf3 Re8 b8R Bb7 Be4 Qhf1 Kh3 Qf3+ Bg3 Rd8 Kh4 Ba6 Ra8 Rb8 Bc6 Rb7 Rb8 Rb5 Ne5 Bb7 Bb1 Rb6 Neg6 Ba8 Nc2 Rb3 Nb4 Qff1 Ne1 Qf2 Bh1 Bg2 Ngf3 Bf1 Ng5 Bh3 Ng2 Qf3
2Q3nk/N3b3/2R1b1RB/r1P1r2q/BBNKPrRB/q1b3n1/r1P4B/3N4 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 f5 Kc3 Kf7 h4 d5 e4 a5 b4 g5 h6 a4 b6 a3 b5 a2 h5 g4 h7 Kg7 e6 g3 b7 f4 b6 f3 e7 f2 e8R g2 h6+ Kf6 Re6+ Kf7 Rc6 Be6 Nd2 Bf5 Rh4 Na6 b8B Be7 Bh2 Nb8 Nh3 g1B Qg4 Nd7 Bb5 f1R Nf2 Ndf6 Nc4 Nh5 Ba4 Ra5 b7 d4+ Kd3 Qc8 Ba3 Qd8 Bb4 Bd7 Re1 a1R Re3 Qc8 Rg3 Ra2 Qh3 Qf8 Rgg6 Ng3 Qg4 Bc8 Qd7 Qd8 Qc7 Be6 Qc8 Nf6 Rf4 Rf8 Rh4 Ng8 h8B Qd6 h7 Qd7 Nh1 Rf5 Bg7 Re5 h8B Be3 Bf6 Bd2 Nf2 Qd8 Bhg7 Qd5 Na3 Bc3 Bh6 Qb3 Nc4 Qb2 Rf4 Qa3 Bh4+ Nf6 Bg7 Kg8 Bh6+ Kh8 b8N Re8 Na6 Rf8 Nc7 Ng8 Nb5 Rf6 Na7 Rf7 Rfg4 Rf4 R4g5 Nh5 Ke2 d3+ Ke3 d2 Rg3 d1Q Rg1 Qg4 Nd1 Qf5 R1g4 Ng3 Kd3 Qh5 Ke3 Be1+ Kd4 Bc3+
3K3B/1R2rb1Q/k1BN1qN1/1r6/1nR4N/b1PBn3/P2B1RpP/2qr2Bb w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Ke3 Kd7 Kd4 Kc7 Ke5 b5 f4 Kb7 h6 g5 c6+ Ka7 c7 b4 a6 e6 h7 g4 c3 b3 f6 d4 f7 g3 f5 b2 f6 d3 Na3 b1Q Qc2 d2 Bd3 d1B Nf3 Qb2 Nh4 Ne7 Bd2 Bb7 c8R Nd5 Nc4 Ba3 f8N Ne3 f7 Bh5 Raf1 Qc1 Nfg6 Re8 h8B Re7 Kf6 e5 f8B e4 Rf2 Nc6 Nd6 Nb4 Rc4 Rb8 Rd1 Kb6 a7 Ka6 a8B Bd5 Bfg7 Rb5 Bc6 Bf3 Bf8 Bh1 Bh6 g2 Rdf1 Qa1 Rb1 Bf7 Rb3 Qc1 Bg5 Nd1 Bge3 Qb6 Bd4 e3 Rb2 e2 Rb1 Ree5 Rb3 Red5 Ke7 e1R+ B4e3 Qd4 Kd8 Qf4 Bed4 Ne3 Rb2 Rd1 Qb1 Rb7 Ba7 Re7 Rb3 Nbc2 Rb7 Qf6 Nf4 Rh5 Bh7 Nd4 Rf1 Nec2 Bhe4 Nb5 Bg1 Nb4 Rf2 Nd4 Bg6 Rb5 Qf5 Qe6 Qh5 Qf6 Qh7 Ndc2 Bd3 Ne3 Nfg6 Be6 Rc5 Bd5 Rc4 Bf7
n4rR1/1qB3N1/n2B1N2/1qQP2Pb/k4pR1/2rr2K1/NbPNB2N/2b3R1 w - - 0 1 illegal: No possible last move
rRn4R/1K1B1k2/4qP2/rn1N1P2/1R3N1R/p2Qb1q1/1RnP2N1/2qB1bB1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 h5 Kf3 c5 Ke4 e5 f4 a5 b4 a4 g4 a3 f6 c4 g6 h4 b6 c3 f5 h3 g7 h2 d6 c2 Kd5 e4 d7+ Kf7 g5 e3 b5 e2 b7 e1N b6 Qe8 Bb5 Rh4 Bb2 c1Q Ra2 Nc2 Nh3 Na1 Nc3 Nc6 b8R Ne5 b7 Raa4 Qf1 Ra7 Qd3 Bc5 Nf4 Rh7 Ng2 Nc4 Kc6 Rh6 Nd5 Qce1 Bd4 Rh5 Rb2 Nd6 Bg1 Q8e6 d8N+ Ke8 g6 Ne7+ Kc7+ Bd7 g8B Nc2 g7 Rh8 Ba4 Qg3 Bc6 Qee1 Ne6+ Nec8 Nef4 Ra5 Be6 Be3 Ba4 Bc6 Bd7+ Kf7 g8R Bb5 Rg4 Bc4 Rh4 Nb5+ Kc6 Na1 Bd1 Nc2 Ra8 Rd8 b8R Qe2 Kb7 Qee1 Qc3 Bf1 Ra6 Qe2 Rc6 Qc4 Qd3 Qe4 Rc4 Qe6 Rcb4 Re8 Bf2 Rd8 Rg1 h1Q Rh8 Qh5 Rh1 Qe2 R1h5 Qe1 Rh4 Rf8 Bg1 Re8 Bf3 Qc1 Bd1 Ne7 Rc8 Rg8 Rc7 Rga8 Rcc8 Ra4 Rce8 R4a5 Rb8 Nc8
Nr2r3/1p2Nnn1/8/1NRQn1N1/2B2NP1/2R1PK2/1P1q2BB/1Rbk1brq w - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 g5 h4 a4 hxg5 a3 Qa4+ Qd7 Qxa3 Qd6 Qa7 Qd8 Kf2 Ke7 g4 h5 d4 f5 a4 c5 g6 f4 a5 f3 d6+ Ke6 g7 Kd5 a6 Ke4 d5 h4 e6 c4 e7 c3 e8B h3 d7 h2 d6 c2 Ra5 Qf6 d8R Be7 d7 Bb4 Bf4 c1R e3 Qc3 Na3 Nc6 Nh3 Ne5 Bg2 Kd3 Bf7 Kd2 Ng5 Nh6 g8N Rg1 Bc4 Rb8 Qc5 Nhf7 a7 Kd1 Ne7 Re8 a8N Qd2+ Kg3 f2 Qd5 Bc3 Rc5 Ba5 Nb5 f1N+ Kh3 Ng3 Kh4 Ne4 Kh3 Nf6 Kg3 Qd3 Kf2 Bd2 Bg3 Nh5 Bf4 Nc6 Kf3 Bc1 Be5 Ng7 Bf4 Rh8 Rg8 Qd2 d8N Bf5 Nde6 Bc2 Rc8 Re8 Bg3 Bd3 Nf4 Re1 Rf1 h1Q Bh2 Qc2 Rf2 Rg1 Re2 Qc3 Rc2 Qe1 Rc3 Qd2 Rd8 Bf1 Rd6 Na5 Ra6 Nc6 Ra1 Qd4 Rb1 Nce5+ Kf2 Qd2+ Kg3 Ng6 Kf3 Nge5+
2N1R3/B5r1/4b1N1/b1R1qQn1/P1PP3N/3bN2r/2b1Bn1p/1NKnR1Bk w - - 0 1 illegal: No proof kernel
1kN3RB/rn6/QrnP1R2/1Nn3BP/Bb6/r3RN2/1B1BnPKp/1b3q2 w - - 0 1 illegal: No proof kernel
r3b3/2P1Pq2/3b2n1/4NRR1/3Nr2k/2nK2RN/PrBQB1bp/2bRB2R w - - 0 1 illegal: No proof kernel
q4r2/2b1NP2/Q3r3/KBN2Brk/BN5p/rR2PnrP/RBb2B1q/2R5 w - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 axb5 e5 fxe5 f4 d4 Nc6 dxc5 Nce7 Bg2 Nh6 Bf1 Nhf5 gxf5 Ng8 Kd2 Kf7 Kc3 d5 Kb4 g5 c4 h5 h3 f3 e3 h4 b6 d4 f6 Kg6 b7 f2 b8B d3 e6 d2 e7 a6 e8B+ Kh6 f7 g4 Ra2 g3 Nc3 g2 Ne4 Nf6 Qa4 d1Q Nf3 g1R Nd4 Rh7 Nc2 Nd7 Bg3 Qe7 Ka5 Qe2 b4 Rg7 b5 Ne5 c6 Nf3 c5 Qb7 c7 Bd6 c6 Rg5 Nc5 Kh5 b6 Bf5 c8B Bc7 Nb4 Bc2 Bb2 Rb8 Bcd7 Qa8 Bf5 Qd2 Bb5 f1R Bf2 R1g3 Bed7 Rf8 Qa3 Rfg1 Be8 R1g2 Rc1 Rg6 Qd3 Re6 Qa3 Rg5 Ba4 R2g3 Qd3 Bf4 c7 Be5 c8N Bc7 Ne7 Qe2 Bb3 Qd2 Bb5 Qe2 Ka4 a5 b7 Qd2 b8R Qe2 Ka3 a4 Qd6 Qd2 Qa6 Qd6 Nbc6 Qe5 Kb4 a3 B3a4 Qd6 Rb6 Qe5 Ka5 Qd6 Raa1 a2 Nb4 Qd2 Be1 Qg2 Bf2 Qh2 Bf1 Ng1 Nbd3 Bf4 Rb3 Nf3 Nb4 Be5 Rab1 a1R Bb5 Ra3 Ra1 Bd6 Ra2 Bc7#
1bN5/pk3b2/2R2r1b/1K5P/R1b1BBqr/PB1P1q1R/1QB1Nn1N/1B3b2 w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 e5 exd5 e4 b4 Nd7 bxc5 Ne5 fxe5 Rh6 Be2 Rh7 Bf1 Rh8 Ke2 Kd7 h4 Kc7 c4 g5 e6 b5 e7 f5 e8B g4 h6 g3 c6 b4 h5 g2 d6+ Kb8 c7+ Kb7 d7 f4 h7 b3 c5 e3 Kd3 f3 Kc4 e2 c6+ Kb6 Rh3 e1Q Nc3 f2 Qc2 b2 Nce2 b1B Bg6 Ba3 Qb2+ Bb4 Nf3 g1B Bc2 Bh2 Bg2 Bd6 Nh2 f1B Bge4 Qf8 d8N Qd1 Nb7 Nf6 d3 Bg3 Nd6 Ng4 Bf4 Rg8 h8R Nf2 Rh6 Rg4 Rg6 Bf5 c8B Rh4 c7 Qf6 Bd7 Rf8 c8B Bg4 Bdc6 Be6+ Bcd5 Bf7 Bce6 Qg5 Rh6 Qg4 Nc8+ Ka6 Rg6 Bd2 Kc5 Qf3 Bdb3 Qg4 a3 Ba2 Rc1 Qf3 Rg4 Be3+ Kc6 Bd2 Bb1 Be3 B3c2 Bc4 Bb8 Bg5 Bf4 Bh6 Kc5 Bb5 Beb3 Bbc4 Be3 Bb8 Bf4 Rg8 Kc6 Rg6+ Kc5 Bcd5 Kb4 Kb7 Kb5 Rf6 Rg6 Rf5 Ra6 Rf6 Ra4 Qg4 Nc3 Qdf3 Ne2 Ka8 Bd1 Kb7 Rc6 Bde6 Bdc2 Bc4+
1BRnBNk1/BN2P1b1/1n3q2/2r1Q2n/3n3p/1bR2RPK/1B3bqP/N4B2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 g4 c4 g3 fxg3 Ba6 g4 Bb7 g5 Bc8 b4 a5 c5 a4 b6 Ra7 c6 Nh6 b5 Rb7 cxb7 Ng8 Kf2 f5 Kg3 Kf7 e4 d5 Qd3 h5 Qc3 c5 Ra3 h4+ Kh3 c4 g3 d4 Nd2 d3 Ngf3 Nc6 b8N f4+ Nd7 Bc5 b7 Qf6 b8B Nd8 b6 Bf2 b7 Rh5 Ne1 f3 Nb3 d2 Ba7 d1N b8B Ne3 Nc2 Nd5 Nc5 Nb6 g6+ Kg7 Rb3 a3 e6 a2 e5 a1B e7 Rf5 Qe1 c3 Nf8 Be6 e8B Kh8 Ra3 Bb3 e6 Re5 Nb7 Rc5 e7 Bb2 Nb4 c2 Qe5 Bbd4 Bb2 c1N Rg1 Ne2 Nc2 Bc3 Na1 Nd4 Nd6 Bfe1 Nb7 f2 Bfb5 f1Q+ Rg2 Qg1 Rf2 Qh1 Rf3 Bf2 Bf1 Qg2+ Kg4 Bd2 Rc3 Bh6 Rf3 Qg1 Kh3 Bg7 Rc3 Qg5 Rf3 Nf6 Rc3 Kg8 Rf3 Bh6 g7 Nh5 Rc3 Qf6 Rf3 Ba2 Rac3 Bb3 Ne6 Kh7 g8R Bg7 Nf8+ Kh6 Bf7 N8c6 Ng6 Kh7 Rc8 Nd8 Be8 Kg8 Nf8 Qg2+
R2Rq2R/2BnN1RB/3bPKBr/1b1p4/Nn6/b1Pnq3/3PR1NQ/1bk5 w - - 0 1 legal: proof: f4 c5 b4 a5 bxc5 h5 a4 e5 fxe5 b5 g4 b4 gxh5 Ra6 Ra2 Rb6 Ra1 Rb5 axb5 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 d6 b6 f6 h6 a4 h7 b3 c6 g4 c7 a3 b7 b2 h5 a2 h6 g3 Nf3 g2 Ne1 g1N Rh2 Bd7 c8N Qc7 Ne7 Nf3 Nc3 b1B Na4 Qc8 Ba3 Bb5 Ng2 Na6 b8R Qc5 Rb7 f5+ Kf4 d5 e4 Qc6 c3 Nb4 Bd3 Nf6 Qe2 Ne1 Kg5 f4 Kg6 f3 Kg5 Na6 Bd6 f2 Bc7 f1Q Bc2 Nd3 Qh5 Nab4 Qe2 Kd7 e6+ Ke8 e5 Qf2 Ra7 Qe3+ Kf5 Nd7 Qf2 Rg8 h8R Rg6 h7 Rh6 Rg8 Qa8 h8R Qb8 Rg7 Qd8 Ra8 Qc8 Ng8 Bd6 e7 Qb8 Rg6 Kf7 e8B+ Kf8 e6 Qc8 Rf6+ Kg7 Bg6 Qe8 Ne7 Qf7 Rhd8 Qe8 Bh5 Kh7 Rf8 Kg7 Qg1 Kh7 Rh8+ Kg7 Kg4 Kf6 Bg6 Ke5 Bh7 Nc1 Bcg6 Ncd3 Nf5 Ke4 Qf2 Bc2 Rg1 a1B Qh4 Bb1 Ne7+ Ke5 Qf2 Bb2 Qh4 Ba3 Qh3 Qb6 Kg5 Qa7 Rf1 Qb6 Rf7 Qc5 Rg7 Qa7 Nf5 Ke4 Qh4+ Kf3 Ne7 Ke2 Qg3 Kd1 Qf4 N7e5 Kf6 Qb6 Ne3+ Kc1 Re2 Qc5 Ng2 Qe3 Qh2 Nd7+
N3b1Q1/1n2pPR1/1q1BRp2/k2B2K1/b2n2nN/2N3B1/N3P1Pb/1R2r1rN w - - 0 1 illegal: Other
1K2Bb1B/2Pp2Q1/1qRRR3/B2p1P1P/1Nb2rB1/k5n1/1N2B1n1/2r2brN w - - 0 1 illegal: Other
R1Bqn1RB/r5r1/q3Q2P/1K2p2n/1NpN1k2/2P3R1/B1Pb3N/3NbN1b w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c6 b4 Qb6 bxa5 Qb5 Bd3 Qb2 Bf1 Qc3 dxc3 Ra7 Qe2 Ra6 Qd1 Ra8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 g5 f4+ Ke4 a4 e5 h6 b6 f6 c5 f5 d5+ Kb5 g4 a6 g3 a5 d4 h7 g2 f7 d3 h5 d2 h6 Ke3 f6 Nc6 a7 Be6 a6 Bd7 Rh3+ Kf4 Rg3 Be6 Bc4 Nb4 Nf3 g1B Ba2 c4 Nh2 Ke4 Qg4+ Kd5 Qg6 d1Q Nd2 Rd8 a8N Nd3 a7 Rd7 Ndf1 Bf2 Bg5 B8c5 f8R Be1 f7 Be3 Bf6 B3d2 Re8 Rc7 f8N Nf4 Qf7 Re7 Nc7+ Ke4 a8B+ Bd5 Nfe6 Nh5 Nd4 Kf4 Qe6 Bh1 Na6 Rg7 Nb4 Ra7 Bg7 Ngf6 Bb7 Rg8 Bh8 Rg7 Rg8 Ne8 Bc8 Qf3 Nf5 Qd3 N5e3 Qd8 Nd1 Rge7 Bf6 Rg7 h8N Rae7 Ka6 b5 Nf7 Rb7 Ng5 Rbd7 Nc6 b4 Ngf3 b3 Nfd4 b2 Kb5 b1Q+ Nb4 Ra7 Nfe3 Rg6 Bh8 Rgg7 Nef1 Qb2 Bb1 Qc1 Ra3 Qb2 Ba2 Qa1 Ra5 Raf7 Ra8 Ra7 Bb1 Qa3 Ba2 Qa6+
rB6/Nn1N1Q2/P2b1n1q/2rP1B2/BR1R3P/1N2Rb1K/Rp2pkn1/1q4R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 Kd6 a4 g5 f4 c5 Kf2 b5 Kg2 e5 h6 b4 h7 c4 f6 g4 f7 b3 a6 g3 f5 c3 a7 e4 a5 e3 f6 b2 a6 e2 Na3 c2 Ra2 Qa5 Nb5+ Kd7 d6 Ke6 d7 Kf5 d8R Ke4 Nf3 Qa3 Rg1 Be7 f8R Qa4 f7 Bc5 Bf4 c1Q Nd2+ Kd3 Rfe8 Qb3 f8N Bg4 Nd7 Bf3+ Kh3 Nc6 Bb8 Qbc2 Nb3+ Q2d2 Bg2 Nf6 Qf1 Bd6 Re6 Re8 h8R Qb1 Rg8 Qe3 Rg4 Qh6 d5 Na5 Re3+ Kc2 Qf2 Nb7 Rd4 Re4 Bh1 g2 Re8 Rg4 R8e4 Rg8 Rb4 Rc8 Red4 Rc6 Qg3 Rc7 Qg8 Rc5 Qf7 Qf1 Rf4 Kd1 Rfd4+ Ke1 Bc7 Rb8 a8B Kf2 Na7 Rc8 Bb8 Qb1 Qe7 Na5 Bc6 Nb7 Qf7 Re8 Bc7 Ra8 Bb8 Be7 Re1 Bf8 Ba4 g1N+ Kh2 Nh3 Rg1 Be7 Bg2 Nf4 Bh3 Bf8 Bf5 Ng2 Kh3 Bd6
R4bNN/RP1B2rb/6n1/pQb1p1rR/1BB5/7P/3P2NB/1qk1qnBK w - - 0 1 illegal: No proof kernel
BNN2K2/P1p1r1qR/N1pPb1Q1/1rn4R/8/N6B/qP1N1b1b/B1k2n1R w - - 0 1 illegal: Other
3bRNRR/1bN1n3/2p5/2rP2bn/5Bpb/1N6/BP1PR1Q1/KRBkq2r w - - 0 1 illegal: Other
2B1r3/2n2p2/b1pbP2k/B3R3/2P4b/KN2R1P1/R1qQ2rr/qRNB1NR1 w - - 0 1 illegal: No possible last move
7N/1r3r2/nNB1r1p1/1PBqBk2/2R2qnn/1R1b1RPp/P2Q3N/1BBK4 w - - 0 1 illegal: No proof kernel
1R2b1R1/2B3b1/kN1rpp2/4n3/P1b3PN/1RBQ1Br1/2rRP3/N1nK2Rn w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 f4 Ra8 fxg5 Ra6 h4 Ra7 g4 Qd6 h5 Qg6 hxg6 Ra8 d4 Kd8 a4 h5 d6 b5 g7 c5 a6 b4 g6 f6 d7 Kc7 d8R Kb6 d5 e6 d6 b3 d7 c4 a7 h4 Qd6+ Nc6 Ba3 c3 Kd1 h3 Ra2 b2 Bb4 h2 Nd2 b1B Rb2 Ne7 g8R Bd3 g7 Ka6 Rb3 Rh3 Bg2 Nf5 Ngf3 Nd4 Rg1 h1N Nh4 Bc4 Bf3 Rg3 Qd5 Rb8 a8N Ne5 Nb6 Bb7 Rh8 Bc6 g8R Bg7 Qe4 B6b5 Qd3 Rc8 Ba5 Rc6 Rb8 Rd6 d8B Be8 Bc7 Bf7 Rgd8 Bh5 Rhg8 Be8 Rb4 Nb3 Rb5 Nc1 Nb3 Nc6 Na1 Ne5 Rb3 c2+ Ke1 Na2 Bc3 c1R+ Kd2 Rc2+ Kd1 Rc6 Qh7 Nc1 Rd2 Rd6 Qf5 Rd5 Qd3 Rd6
2R5/p1r5/K3k1b1/1B1qNNQ1/R1pR3B/n1B1b2P/1PP1bp2/1N2rrRR w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 f4 Ke7 e4 Qe8 e6 Kf6 e7 Ke6 e5 Qd8 Kf2 Nc6 Ke1 Nd4 f5+ Kd5 Bd3 Kc5 Bf1 Ne6 fxe6 Kb4 Ke2 Kc4 Ke1+ Kc5 Kd2 Kd5 Kd3 g5 e8R c5 b6 f5 h6 f4 h7 f3 b7 g4 b8R f2 h3 g3 e7 g2 e6 Nf6 Ra4 Bh6 Qd2 Ne4 Nf3 g1R Rbb4 Nd6 Ne5 Be3 Rg8 Nc4 e8N Na3 e7 Ke6 Rd4 d5 Nd6 Ba6+ Kc3 Rc8 Bb5 Rc7 Nf5 Rf1 Rgg1 Re8 h8B c4 Kb4 Bb7 Ka5 Ba8 Rh4 d4 Ka6 d3 Rd4 Be4 Bf6 Qd5 Bh4 Rcc8 Qa5 d2 Qd8 d1B Bd2 Bh5 Bc3 Bef3 Qa5 Be2 Qd8 Bg6 Qa5 Rf8 Qd8 Rf7 e8R+ Re7 Qa5 Rc5 Rc8 Re8 Qd8 Rc7 Qg5 Rd8 Qg2 Qf3 Re4 Rdd1 Rd4 Rde1 Qg5 Qd5
2BRR1R1/5nB1/2Q1K2B/p3r1rN/nqN2p1P/q1b1pP2/N3P3/1NN3kr w - - 0 2 legal: proof: c4 a5 b4 h5 g4 d5 gxh5 b5 cxd5 Bf5 a4 Bc8 axb5 Bf5 b6 Bc8 b5 Ba6 bxa6 Qd7 Ra4 Qc8 Ra1 Qd8 d4 Kd7 Kd2 Kd6 Kd3 g5 Kc4 e5 a7 f5 f3 c5 b7 e4 h6 g4 h7 g3 Bh3 g2 Bh6 e3 Qa4 f4 Bc8 Nf6 Nh3 g1R Nf2 Rf1 Nd3 Qb6 Qc6+ Ke7 d6+ Kf7 d7 Kg6 d8N Kh5 d5 Kh4 d6 Be7 d7 Kh3 Ne6 Kg2 d8R Rg1 Nc1 Ng8 Kd5 c4 Ng7 c3 Nh5 c2 Ke6 Na6 b8N Qb4 h4 Bf6 Re8 Bc3 Ra2 Rd1 Rg1+ Kf2 Rg5 Rh1 Rb2 Kf1 Rd5 Kg1 Rdd8 Nf6 Rb3 Rg8 h8B Rg5 B8g7 Nd7 Rg8 Ne5 Rde8 Ba1 Rd3 Nf7 Rdd8 Be5 Qc7 Bb2 Nc6 Bc3 Qd6 Rb8 a8N Rbb5 Nb6 Rbc5 Nc4 Rce5+ Kf6 Nc5 Qd5 Qb7 Nb4 Na4 Nba2 Qb4 Qd7 Rc5+ Ke6 Rb5 Nb3 c1Q Qc6 Qca3 Nbc1 Rbe5+
NQN2r1q/b2Bp1k1/B2P1p1R/2B2r2/1B1B3R/b1N2n1q/2p1PPK1/1r5R w - - 1 2 illegal: No possible last move
3BK2B/2b3P1/R1NR1r1p/3b1bQP/1p2k2p/3N4/RP2bRRq/N1rn1B2 w - - 0 2 illegal: Other
br2Q2B/k3r2p/2P1PRNR/1ppBn3/NqP5/5B1N/2n4n/KR1nBB2 w - - 0 1 illegal: No proof kernel
q2r2n1/1n1k2p1/3N1P1n/1p1NbRP1/QBN4N/1P1R1B1r/K1pn4/2NRB3 w - - 1 2 legal: proof: c4 d5 cxd5 f5 a4 h5 e4 b6 exf5 h4 a5 h3 a6 Bb7 axb7 Qd6 Qh5+ Qg6 Qxh3 Qd6 Qh7 Qd8 Kd1 c5 Kc2 e5 Kb3 a5 h4 b5 f4 e4 g4 c4+ Ka2 e3 d4 a4 g5 a3 f6 c3 d6 c2 h5 e2 d7+ Kf7 d5 e1N h6 Qe7 d8N+ Ke8 d6 Qe3 f5 Qb6 f7+ Kd7 f6 Qa7 Bd2 Qc5 Ne2 Qg1 Qe4 Nf3 h7 Nh4 Bg2 Qf2 Nc1 Qe3 Nc3 Nf5 Be1 Qf3 Nd5 Qg3 Bf3 Ra4 Rf1 Ra5 Qa4 Na6 b8N+ Kc8 Nb7 Qg2 Nc6 Nfh6 Ne5 Nc5 Nc4 Be7 f8B Ra8 Rf2 Bd8 Rf1 Bc7 d7+ Kb8 Be7 Be5 Nbd6 Nb7 Rb1 Qg4 d8R+ Qc8 Kb3 a2 Rd7 a1N+ Ka2 Nb3 Bf8 Nd2 b3 Ne7 Ra1 Rg8 h8N Qd8 Ng6 Rh8 Nh4 Neg8 Bh1 Rh7 Rf5 Qe8 Bf3 Qd8 Ne4 Kc8 Bb4 Qa5 Ne2 Rb8 Rd1 Qa8 Nc1 Rh8 Nde3 Rh7 Rd3 Kc7 Nd5+ Kd7 Ned6 Rd8 Bg2 Ng4 Bh1 Rh5 Bf3 N4h6 Ng6 Rh1 Nh4 Rh3
2q3Q1/3N3n/R1NB1RB1/1bpn3K/2P1pN1B/Pn2P2p/R1n1Nq2/r2N3k w - - 0 1 legal: proof: g4 c5 b4 a5 bxa5 g5 d4 b5 d5 f5 gxf5 g4 h3 Ra6 h4 Rc6 dxc6 Bh6 Nh3 Na6 Ng1 Bg5 hxg5 Nb8 c4 Kf7 f4 e5 Kf2 h5 Kg3 d5 Kh4 d4 a6 d3 f6 Kg6 f7 Kf5 f8N Ke4 a7 b4 a8R g3 f5 g2 a3 d2 c7 b3 f6 b2 g6 Ke3 g7 Kf2 Ra2 Qd3 f7 Qh7 Nd7 Na6 f8B Nf6 g8N Qf5 Ne7 Nb4 Ra6 Nbd5 Nc3 b1N Nc6 Nh7 Bd6 Rd8 Qc2 d1N Bg5 N1e3 Bf6 Bb7 c8N Nd2 N8e7 Nb3 Ng6 e4 Nf4 Rg8 Qd3 Nc2 e3 Rg3 Nge2 g1Q Bh3 Kf3 Qd1 Qf2 Rf1 Qe6 Bf5 Rg1+ Kh3 Qe8 Bg6 Qc8 Bh4 Ba8 Qd4 Bb7 Qh8 Ba8 Nb4 Bc6 Nd1 Bb5 Nc6 Nba1 Bg3 Nb3 Kh4 Rh1+ Nh3 Kg2 Qg8 Rg1 Nhf4+ Kh1 Nh3 Qh2 Rf6 Qf2 Nhf4 Re1 Nb2 Ra1 Nd1 Nf8 Kg5 h4 Kh5 h3 Bh4 Nh7
nBq3N1/1B1P2pN/5R1p/1rk4P/R2Nr2K/3RN1Pn/3pq1N1/4qQBq w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 f5 e4 e6 exf5 Kd7 c5 Ke8 b6 Ba6 d3 Bc4 Nh3 Bd6 cxd6 c5 Ng1 Ba6 Qf3 c4 Qg4 c3 Qd1 Bc4 dxc4 Qc8 Bg5 Qd7 Bc1 Qd8 b4 Kd7 h4 Kc6 f4 a5 Kf2 d4 Kg3 d3 c5 e5 b7 a4 f6 a3 h5 h6 f7 c2 f8N a2 d7 e4 f5 e3 f6 e2 b5+ Kd5 f7 Ra7 b6 Ra4 c6 Rb4 c7 Nc6 b8B Na5 c8N Kd4 b7 Kd5 Na3 Rb6 Be3 c1Q Nf3 d2 Nh4 Nb3 Ne7+ Ke4 Nc4 Nf6 Nh7 Qe8 f8R Nd4 Bg1 Nf3 Ng8 Kd5 Ne3+ Kc5 Rh3 Nd5 Rf6 e1Q+ Kg4 Qc2 Ba6 Nc7 Qc1 Qe2 Qf1 Ng5+ Rhf3 Qe7 g3 Na8 Nhg2 Nh3 Kh4 Qee4+ R3f4 Q4f3 Ra4 Rb5 Rb1 a1Q Rb3 Qae1 Rd3 Qcd1 Bc7 Qa1 b8N Qb7 Nc6 Qc8 Bb7 Qac1 Nd4 Qb1 Ne7 Re8 Ng8 Re7 Rda3 Qe4+ Bf4 Re8 Rd3 Qd5 Bb8 Qe4+ Nf4 Qh1 Nfg2 Re4+
r4BNR/1q1p1nK1/P6p/RNB2bQP/1bB2Nr1/4p2p/2P3Bq/RBk5 w - - 0 1 illegal: Other
q3n3/Pr1QR1R1/1B2N3/Nb1Bp1b1/1KNRPn2/1q1p2b1/rB1PkB2/1Bq5 w - - 0 1 illegal: No proof kernel
kNrN1b2/3pKp1q/2bPR1Br/nBB3n1/R2P4/1N3PB1/R1Q5/1q1rBb2 w - - 0 1 illegal: No proof kernel
rRn5/1N1b3k/B1bp2R1/b2Pb1Bp/2NPN2n/5QRP/N1r3nN/3K2Bq w - - 0 1 illegal: No proof kernel
1Bk5/1p6/Nr1rRR2/BP1p1R1p/K3nPB1/Rq6/RQ1q1bbP/1N1r1nN1 w - - 0 1 illegal: No proof kernel
n5BN/2bbBqR1/2n1NQp1/4RK2/rBp1P2p/7N/1qP2BP1/1rR1q1Bk w - - 0 1 illegal: No possible last move
1R6/nppkNp2/BQ2r3/2P5/PP1q2Nb/1B2R1BR/nbb1RKb1/R2r1N2 w - - 0 1 illegal: No proof kernel
5nRR/3P1b2/Q1N1bPQ1/R4r1p/1n1nB3/5r1N/4NP1N/N2kBKr1 w - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 g5 h4 f5 hxg5 f4 a4 f3 axb5 Kf7 exf3 Bb7 f4 Bc8 f5 Ke8 Rh6 d5 Qa4 c5 Ke2 Bg7 Qc2 Bc3 Rh1 d4 Ke1 Qd5 cxd5 c4 Qd3 Bb2 Qf3 c3 Qe2 c2 Qd1 Bc3 dxc3 Ra7 Qe2 Ra6 Qd1 Ra8 g4 Kf7 b6 e5 c4 d3 c5 e4 f6 Kg6 d6 e3 b7 h6 c6 e2 c7 Be6 c8N Bc4 d7 Bb3 a6 Ne7 a7 Rh7 Bd2 c1N Na3 Be6 Nc2 Na6 b8N Nb3 Ra5 Nd5 Na1 Rg7 Qb1 Ndc7 Nd6 Nac5 Nb5 Rf7 Bg2 Rh7 Nc3 Nd5 Nc6 Nb4 Nh3 Nd4 Qc2 Rb8 a8Q Rb5 Qa6 Bf7 Bd5 Nce6 Be4+ Rf5 Rh2 Nf8 Rh1 Ba2 Rh2 Kf7 g6+ Ke6 g5 h5 Rg2 Re7 g7 Kd6 g8R Be6 g6 Re8 Ra4 Kc5 g7 Bf7 Ra2 Ree5 Rh8 Rf3 g8N Ref5 Nh6 Be6 Qc8 Kc4 Ra5 Bf7 Ng4 Be6 Bg5 Bf7 Nh2 Be6 Kd2 e1R Be3 Rb1 Rgg8 Rg1 Qb1 Bf7 Ne2 Be6 Qf1 Bf7 Qe8 Be6 Kd1 d2 Qg6 Bf7 Ng3+ Kc3 Bf4 Nb3 Ke2 d1B+ Ke1 Kb2 Bd2 Nd4 Ne2 Bdb3 Nef4 Rgg5 Qa6 Bbe6 Kf1 Rgg3 Bc3+ Kc1 Ne2+ Kd1 Be1 Rg1+
k2Br3/3nPP1b/r1n1N2B/2pr2QB/1B2BR2/5rR1/3P3K/R1r3QN w - - 0 1 legal: proof: c4 a5 b4 h5 bxa5 b5 g4 d5 gxh5 b4 cxd5 b3 axb3 Nc6 b4 Nb8 b5 Be6 Nf3 Bg4 Ng1 Bc8 e4 f5 Be2 f4 Bc4 Qd7 Bf1 Qf5 exf5 Bb7 Qe2 Ba6 Qd1 Bc8 Bh3 e5 Qb3 e4 Bf1 e3 Qd1 Bc5 Ke2 Bd4 Kf3 e2 Kg2 Be3 fxe3 Nh6 Kf2 Ng8 h4 Kd7 Kg2 e1R f6 g5 b6 c5 h6 g4 e4 g3 h5 Rh7 e5 Rg7 h7 Ne7 h8Q Ra7 f7 Re3 h6 Re4 h7 Ra8 a6 Rg5 b7 Kc7 a7 Rd4 e6 Rh5 d6+ Kc6 d7 Rhd5 d8B Bd7 Qf6 Rf5 h8R Re5 R1h3 Nf5 e7+ Re6 Be2 Rc4 Qg5 Na6 b8B Kb7 R8h4 Nd4 Nf3 Bc6 Qg1 Be4 Ba3 Rc1 Nc3 Nc6 Nd1 Bh7 Nd4 f3+ Kh1 g2+ Kh2 f2 Bb4 f1R Rg3 Ref6 Ne6 R1f3 Bf4 Nab8 Nf2 Nd7 Nh1 Rc8 Be3 Ka8 Rf4 Rf5 Bd1 Rd5 Be2 Rff1 Bh5 Rf3 Bc7 Re8 Bd8 Kb7 a8B+ Kb8 Qf2 g1R Bb7 Rgd1 Qg1 Rdf1 Bd4 Ra3 Bg7 Rff3 Bh6 Ra8 Ba6 Ra7 Bd3 Ka8 Be4 Ra6
QRNNr2K/2QR1b2/R2b2B1/2B4P/q1kP1RN1/n6R/3P1bb1/r4n1b w - - 0 1 legal: proof: f4 d5 g4 g5 a4 b5 axb5 e5 fxe5 h5 h4 d4 hxg5 d3 cxd3 h4 d4 Qd6 Ra5 Qh6 Ra1 Qh5 gxh5 Be7 Bg2 Bb4 Bf1 Bf8 Kf2 Kd7 Ke3 Ke6 Ke4 c5 b4 a5 b6 c4 g6 a4 g7 a3 b5 c3 b7 h3 b6 f6 Qc2 a2 Ba3 h2 Nh3 Ra6 Nf2 Nd7 b8N Bd6 b7 Be7 Ng4 Ra5 Nc6 Ra7 b8R Ba6 Bc5 Bd8 Na3 Ne7 g8R Nd5 Nc4 Ne3 Rg7 Nb6 Nd6 Bc4 Rd7 Re8 Nc8 f5+ Kf4 Bc7 Kg5 f4 Kh6 f3 Kg7 f2 Qh7 Bd6 Nd8+ Kd5 e6 c2 e7 c1B Bh3 f1B Qc2 Rh8 e8R Ba3 Rf8 Bg2 Rf4 Nf1 Qh7 Bb3 e4+ Kc4 e5 Re8 e6 Bc7 e7 Ra6 Rf2 Bg3 Rf4 Bf2 Qc2+ Kb5 Qc3 Bf7 Qa5+ Kc4 Kh7 Nd5 Qc7 Nc3 Kg7 Nb1 Kh7 Rg8 e8Q Ra5 Qe4 Re8 Qa8 Bb4 Kg7 Na3 Kh7 Re6 Kh8 Re2 Rd1 a1Q Re1 Re7 Re6 Qd1 Ra6 Qa4 Nf6 Re4 Bf5 Re3 Ng4 Re4 Rg1 h1B Bg6 Re8+ Bf8+ Bc6 Rg3 Bd6 Rd3 Rb5 Re3 Rb1 Rh3 Ra1 Kh7 Be5 Bc5 Bd6 Kg7 Bcg2 Kh7 Bg8+ Kh8 Bf7+
2RR1NB1/b5N1/kP2bN1P/2B1Qr1r/n3n1Q1/2N2Q2/r1br1P2/q4K1N w - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 d5 cxd5 f5 e4 h5 exf5 h4 a4 Rh6 axb5 Rh8 g4 Qd6 Ra6 Qg6 Ra1 Qh5 gxh5 Kd7 Nh3 Kd8 Ng1 Ke8 b4 Kd7 d4 e5 b6 c5 b7 Kc7 g6 Kb6 f6 a5 g7 a4 h6 e4 b5 e3 d6 h3 d5 c4 d7 e2 d8Q+ Ka7 d6 c3 b6+ Ka6 f7 h2 d7 c2 Qg5 a3 d8N a2 Be3 c1R Ne6 Bd6 f8N Nd7 b8Q Nc5 Nc3 Rc2 Qg4 Nf6 g8N Nfe4 Rc1 a1Q Nf6 Rd2 Ng7 Na4 Bc5 Be6 Qe8 Bc7 Qeh5 Rg8 Qe5 Bb8 Qf3 Ba7 Bh3 Bb3 Be6 Bc2 Qg4 Rh8 Bg8 Rh7 Nf3 Rh8 Nd4 Rh7 Rg1 h1B Ndf5 Bg2 Rf1 Bh3 Ng3 Rh8 Qf3 Be6 Nh1 Rh7 Ngh5 Rhd7 Ng7 R7d3 Qg4 Rh3 Rg1 Rh4 Rg3 Rh5 Rd3 Rb8 Rd5 Rb7 Rd8 Rf7 N6d7 Rff5 Nf6 Bd3 Qb3 Bc2 Qbd5 Nd6 Qdg2 Ne4 Q2f3 Bd1 Na2 Rd3 Bd6 Ra3 Rcc8 Bc2+ Nc1 Ra2 Bc5 Qb2 Nb3 Qd4 Nd2 Qa1+ Nb1 Ng3 Kd2 e1R Nc3 Rd1+ Ke3 Ne4 Ke2 Rd5 N8h7 Qb2 Nf8 Rd2+ Kf1 Qa1+
2B3rn/2nbBr1R/3KN1R1/R3r1P1/Pr4Q1/k1N2R2/P3qq2/3Qb1RB w - - 0 1 legal: proof: c4 a5 h4 g5 hxg5 f5 e4 c5 exf5 d5 cxd5 c4 b3 a4 bxa4 c3 dxc3 Qd7 c4 Qc7 c5 Qd8 Ke2 Kd7 Kd3 h5 Kc4 e5 g4 b6 f4 h4 f6 h3 d6 Kc6 f7 e4 d7 e3 f5 h2 g6 e2 g7 e1Q f6 Nh6 g8Q Bd6 f8R Nf7 Nc3 Qee7 Nf3 Rh5 Ng5 Bg3 Ba3 Na6 Ne6 Nh8 f7 Nc7 Bg2+ Rd5 Rg1 Be1 Bh1 b5+ Kb4 Qde8 d8R Qh4 Rd7 Qf2 Qg7 Ra7 Rb1 Qe7 Rg8 Qe8 Re7 Bd7 f8R Rb7 Rf3 Re5 g5 Qh5 Qf7 Rb8 Rg6 Rg8 Qf4 Qg4 Bg2 h1R Rh7 Rh3 Qfd4 Qe4 Bh1 Qee2 Rc1 Rh4 Qc4 Rf4 Rb1 Rf7 Qg4 Kb7 c6+ Kb6 Kb3 Ka5 Be7 b4 Rc1 Qee3 Kc4 b3 Rc2 b2 Rd2 b1R Rd5+ Nb5 c7 Rb3 c8B Qee2+ Rdd3 Rb2 Rf5 Nc7 Rf3 Re3 Kc5 Re5+ Kd6 Rb4 Rd4 Rc4 Rd2 Kb4 Rd5 Ka3 Ra5 Rb4
QQ1n4/qBR3r1/3b1PNB/1PR3qN/1N1NP1b1/N1rr4/K1B3k1/3n3r w - - 0 1 legal: proof: b4 b5 d4 d5 c4 f5 cxd5 h5 g4 e5 dxe5 f4 gxh5 f3 a4 Be7 axb5 Ba6 Ra3 Bc8 Rxf3 Bc5 Rf7 Bf8 Kd2 g5 Kc2 c5 Kb3 a5 e4 c4+ Ka2 a4 f4 a3 h4 g4 b6 c3 e6 c2 b7 g3 b5 g2 f5 Bd7 f6 Nc6 b8Q Ra7 d6 Bg7 h6 Na5 e7 Qc8 h7 Be6+ Qd5 Kd7 h5 Nc6 h6 Bg4 Rh5 Qb7 Nf3 g1Q Bd3 Bf8 Nd4 Nd8 Bg5 c1R Bc2 Qc7 Qda8 Rd1 Be3 Rd3 Rc5 Qc1 Nc6 Ke6 e8B Rc3 d7 Bd6 Nb4 Ne7 Bd2 Rf8 h8N Nf5 h7 Ne3 Ng6 Nd1 Bh6 Qg5 h8N Rg8 Rh7 Ra6 Rf7 Qa7 Rg7 Rc6 Rh7 Rd3 Rf7 Rd5 Nf4+ Ke5 Nh5 Rg7 Ng6+ Kd4 Re7 Ke3 Bf7 Rd2 Bd5 Kf2 Rf7 Rc8 Bb7 Rd3 Re7 Kg2 Rf7 Ne6 d8N Rc7 Ndc6 Nd8 Nd4 Rc6 Ka1 a2 Na3 Rc7 Re5 Rcc3 Rc5 Ne3 Kb2 a1R Rfc7 Rh1 Ka2 Nd1
2q1RbQ1/B2NP2B/1bq2r1r/n7/1b1R1B2/1P2PN2/k2NqB2/1rB2QK1 w - - 0 1 legal: proof: c4 b5 f4 g5 a4 f5 axb5 e5 fxe5 d5 cxd5 f4 g4 Bf5 gxf5 Nd7 h3 Ndf6 h4 g4 Bg2 Ne4 Bf1 Ng5 hxg5 Bb4 Rh3 Bd6 Rh1 Bf8 Kf2 Kf7 d4 c5 b6 a5 b7 h5 b8N a4 d6 a3 d7 h4 d5 f3 f6 a2 d6 Ke6 g6 h3 g7 h2 f7 c4 Nd2 Kd5 e6 c3 e7 c2 Qe1 Qc8 d8B Rh6 Nd7 Ra6 Bc7 Rf6 Rb1 a1B b3 Bc3 Bh3 Kd4 Qf1 Bb4 Ra1 Kc3 Ra4 Rb6 Bb8 Qc6 Ra8 Ra6 Ba7 Rb6 Re8 g3+ Ke1 g2 Kf2 Ra6 Bf5 Ra1 Bh7 Rb1 Ke3 f2 Ngf3 Nh6 Rg1 h1R g8Q Rh5 Rh1 g1B Rh4 Qc8 Rd4 Ng4+ Ke4 Ne5 Ke3 Bg7 f8B Nc6 Nh4 Na5 Nhf3 Bh8 Bh6 Bg7 Bf4 Rhh6 Nf8 Qc6 d7 Qc8 d8B Qc6 Ne6 Bf8 Nc5 Qc8 Nd7 Qc6 Ba3 c1Q Bdc7 Qc2 Bc1 Qf5 Bg3 Qfc5 Bcf4 Qc4 Qg2 f1Q+ Bf2 Qd1 Qf1 Q4a6 Ne1 Qcc8 Kf3 Qac6+ Kg3 Qc2 Nef3 Q2e4 Kg2 Qd3 Bh4 Be3 Bf2 Qc2 Rd6 Bb6 e3 Qd1 Kg1 Qe1 Rd4 Qe2 Ne4+ Kc2 Bd2 Kb2 Bc1+ Ka1 Ned2 Ka2
2R2rb1/4P2N/3BB3/3nnP2/kP1n1qrR/NRR1B1r1/1K1QR2q/3Qq3 w - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 f5 e4 e5 exf5 d5 cxd5 e4 d4 Na6 a4 Bd6 axb5 Be5 dxe5 Nb8 Kd2 Kd7 Kc3 g5 h4 c5 f4 a5 b6 c4 h6 g4 b7 a4 f6 a3 f5 a2 h5 g3 d6 Kc6 e6 Kb5 f7 e3 f8B g2 d7 e2 h7 e1R h6 Ka5 Nf3 g1N Ng5 Re4 Rh3 Ra7 Bd6 Nf6 e7 Nc6 b8R Ne5 Be3 Rf8 h8R Rg4 h7 Ngf3 Rb3 Qc7 d8Q Be6 Na3 Nd4 Rg8 Ra6 h8R Ka4 Nh7 Rc6 Rc1 a1Q Rh4 Bf7 Rg6 Bg8 Bg2 Rg3 Bd5 Rb6 Be6 Rb4 Rgg4 Qb8 Re4 Nd5+ Kd2 Qb1 Rcc3 Qa2 Kc1 Qc7 Rc2 c3 Re2 c2 Qd2 Ndc6 Rc4 Qa5 Rcc3 Rbg4 Qb6 Qb4 Qbd4 Qc4 Qd1 Qb4 Q4d2 Qf4 Rb8 Nd4 b4 Qc4 Kb2 Qf2 Rc8 Qh2 Rf2 Qf1 Re2 Qff2 Rb3 Qe1 Rcc3 c1Q+ Ka2 Qc2+ Ka1 Qe4 Kb2 Bf7 Rg8 Qf4 Rh8 Ra8 Rhc8 Bg8 R8c6 Re8 Rc8 Rf8
2rN2R1/1bk1P1N1/r2RR1rP/R7/2Pq2rR/n1B2q2/2B2Q2/1rB2KnQ w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Bd6 c5 Bc7 Bf4 Qe7 Bc1 Ba5 bxa5 Qd8 e4 d5 c4 Kd7 h4 f5 a6 g5 a7 g4 e6+ Kc7 e7 f4 e8R g3 c6 d4 b6+ Kd6 c7 d3 h6 f3 e5+ Kd7 h5 g2 e6+ Kd6 b7 a3 h7 a2 h6 Qe7 Rh4 Qf6 Qc2 Qe5+ Ne2 g1R Nd2 Nd7 b8R Rg6 Nb3 Ngf6 Na5 Qd4 Nc6 Bb7 c8R Ne5 Ng3 Rhg8 h8B Nd5 Qf2 Nb4 Rcd8+ Kc7 Nh5 Rg4 Bg2 d2+ Kf1 R8g6 Rd6 Nc2 Ng7 Na3 Rbd8 Rc8 a8Q Qb6 e7 Qd4 Re6 d1R+ Qe1 f2 Rdd6 Rf4 Nd8 Nf3 Rg8 Ng1 Be4 Rfg4 Bf5 R4g5 Bc2 Rg4 Rb1 a1R Rb5 Rb1 Ra5 Rd3 Qa7 Rdb3 Qe4 Rb6 Qh1 Ra6 Nf5 Qb6 Bc3 Qd4 Ng7 Qe4 Qe3 Qd4 Qg3 Re4 Kg2 f1Q+ Kh2 Qfd3 Kg2 Q3e3 Kf1 Reg4 Qf2 Qf3
4bB1B/1q2q2n/b1B1P3/BN5Q/1Q1Q3P/1R3R2/Pbb1NBkn/4Kq1r w - - 0 1 illegal: No possible last move
3R2rQ/1B1RBn1n/4RNP1/k5r1/1bPQ4/Nb1b2b1/1bP2Bn1/KR5R w - - 0 1 legal: proof: g4 c5 f4 f5 e4 b5 a4 g5 axb5 c4 h4 c3 dxc3 Qc7 h5 Qd8 c4 Qc7 h6 Qe5 fxg5 f4 g6 f3 g5 Qg7 hxg7 f2+ Kd2 Nc6 Bh3 f1N+ Ke1 Ne3 Bf1 Nf5 exf5 Nb8 Kd2 Kd8 Kc3 Kc7 b4 Kb6 Kb2 a5 f6 e5 f7 d5 Rh6 a4 Be2 a3+ Ka2 d4 Rh1 h5 Rh4 e4 Bf1 d3 Nf3 e3 Ne5 e2 Ng4 e1B Nf6 d2 Rd4 h4 Rd7 h3 Bg2 h2 Bb7 Nh6 g8Q h1B g7 Be4 g6 Ra5 Bb2 Bd6 f8B Nf7 Be7 Beg3 Bd4+ Bc5 Qf8 Rg8 Bf2 Bd3 Qg4 d1N Qd4 Ne3 Qe8 Rh8 g8R Ng2 Rg7 Rg8 Rd6+ Nc6 Re6 Bd7 Qc8 Ng5 Rh7 Rg7 Qh8 Rg8 Rg7 Nh7 Rf7 Ka7 Rg7 Ne5 b6+ Kb8 b5 Nf7 Be4 Bb4 b7 Kc7 b8R Bc6 Rd8 Kb7 b6 Ka6 b7 Rg5 b8R Ka5 Rb6 Bb5 Bb7 Ba4 Nc3 Bb3+ Kb1 Rd5 Nb5 a2+ Kb2 Re5 Rh1 Rg5 Na3 a1B+ Kb1 Bb2 Rb5+ Ka4 Rbb6 Bc1 Ka1 Bbd6 Rb4+ Ka5 Rb6 Ba4 Rb2 Bb4 Rb1 Bb3 Bf8 Nd6 Rgd7 Nf7 Be7 Bb2+
1r1q1K1R/1Pr1NP2/2N3r1/1Q1P2Bq/1Qn3b1/3q1NrB/k2r2Q1/1N2N2R w - - 0 1 illegal: No possible last move
1R1QB3/Bn4B1/q2p3b/Q3n1r1/2b1N1Pk/2P4n/1P1BB1b1/1r1N1KRN w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 Nf6 axb5 Ng8 e3 Bb7 e4 Bc8 h4 g5 hxg5 f5 exf5 a6 bxa6 Bh6 Rh3 Bg7 Rh1 Bf8 g4 Kf7 f4 h5 c6 e5 a7 h4 c7 e4 f6 Kg6 f5+ Kf7 Nc3 h3 Be2 h2 Kf1 e3 Nh3 Nc6 Bd2 Rh6 Nf2 Ba6 c8B Nge7 Rg1 Ng6 Nh1 Bc4 Qe1 Rh4 Nd1 Bh6 c3 Rb8 a8Q Qb6 Qa5 Qa6 Ra2 Rh5 Qh4 Nce5 Bb7 Rg8 Bc6 Nf4 g6+ Kf8 g7+ Kf7 Ra4 Nh3 Rb4 d6 Rb8 Re8 g8N Rg5 Ba4 Nd7 Bc6 Nc5 Bb5 Re5 Bd7 Nb7 Be8+ Kf8 f7 Kg7 f6+ Kg6 Qa4 Re4 Qa5 Re7 f8B+ Rf7 Nhf2 h1B Bg7 Bc6 Nh1 Bf3 Bd7 Re7 f7 Ree5 f8B Rd5 Qa4 Ra5 Qb5 Ra1 Qa5 Rb1 Nf6 Bd3 Ne4 Bc4 Bd3 e2+ Ke1 Rf5 Qhd8 Rg5 Be3 Re5 Ba7 Rg5 Kd2 e1N Be2 Nd3 Be8+ Bf7 Be7 Ne5 Ke1 Qc6 Bd7 Qa6 Kf1 Bc4 Bb5 Rh5 Bh4 Rg5 Be1 Rh5 Nf6 Kg5 Bd2+ Kh4 Ne4+ Rg5 Be8 Bg2+
2Q3rB/1PqB4/4nb2/k2rpRN1/PR1N2qq/R7/2b1RP2/NRQK3n w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 a5 a4 h5 gxh5 d5 c4 Nf6 cxd5 Nfd7 axb5 a4 b3 Nf6 bxa4 Ng8 d4 Kd7 h4 g5 h6 c5 f6 Kc7 h7 Kb6 h5 c4 d6 g4 d5 e6 d7 c3 f7 g3 h6 g2 d6 c2 Ne2 g1Q Nd2 Ra7 Ra3 Qg2 Nd4 Qg1 Bb2 c1Q N2b3 Qdc7 d8N Qa1 d7 Qg6 Qc1 Qgc2 Bh3 Q2c5 Kd1 Bg7 f8R Qf5 Nf7 Nc6 d8Q Nf6 Ng5 Rg8 h8R Ra5 h7 Ne4 Rf1 Ba6 Qc8 Nd8 Rh1 Qa2 Na1 Ng3 Rf6 Qe4 Rf5 Qh4 Re1 Bb7 Re2 Bf6 Bc3 Nh1 Bg4 Ka7 b6+ Ka6 Bh3 Qac4 Bb2 Rg7 Re8 Rd5 h8R Qg4 Rh4 Ka5 Reh8 Ba6 b7 Rg8 R8h7 Qb4 Rd7 Bb5 Rd6 Bd3 Rb6 Qh5 Re4 Qg4 Ref4 Qbe7 Rb4 Bb1 Rff3 Qh7 Rfb3 Qhh4 Bc3 Bd3 Rb1 Bc2+ Kd2 Re5 Rf4 Qgg3 Nb5 Be7 Bb2 Rc5 Bh8 e5 Bd7 Ne6 Nd4 Rd5 Rf5 Bf6 Ke1 Qgg4 Kd2 Be4 Kd1 Bc2+
n1b3k1/2QBPr2/nP2n2p/QN1qQQ2/4P2b/7r/NQ1KR3/B1R1n1B1 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 d4 f5 e4 Kf7 g4 c5 a6 h6 g6+ Kg7 g5 f4 d6 c4 a7 f3 e6 f2+ Kd2 Qd7 b6 Qd8 d5 Bd7 Qg4 Bc6 d7 Bc5 d6 Ne7 Rh2 Nc8 Bh3 Ba4 Nf3 Qf8 d8Q Bd1 d7 Qe8 Nd4 Qf7 Qf5 Rf8 Qc7 Be7 d8B Bg4 Nb5 Kg8 g7 Nd6 N1c3 Nb7 Na2 Nc5 Ba3 Bf6 Rc1 Nba6 e7 Ne6 Bc5 Rc8 a8Q Qh5 Qce5 Rf7 Bc7 Rcf8 Qb2 Rc8 Be5 f1N+ Kc2 c3 Bg1 Rcf8 Re2 Ne3+ Kd3 c2 Kd2 Nd5 Qc8 Nac5 Qc7 Ra8 Bc3 Ra3 Bcd4 Na6 Qfe5 Nd8 Bc3 Bc8 Bd7 Ne6 Bcd4 Rh3 Bc3 Kh7 Bcd4 Kg6 g8Q+ Ng7 Qf4 Rh1 Ra1 c1N Qf8 Kh7 Qb4 Rh2 Qh8+ Kg6 Qa7 Ne3 Qa5 Nd3 Rc1 Nd5 Ba1 Ndc7 Qf1 Na8 Qc7 Rh3 Qf2 Rh2 Qd4 Ne1 Qb2 Ne6 Qf8 Rg7 Qf7+ Kh7 g6+ Kh8 Qf8+ Rg8 Qf7 Rh3 g7+ Kh7 Qf8 Bh4 Qff4 Qc5 Qfe5 Rf8 Qd8 Rf7 Qdc7 Kg6 g8Q+ Ng7 Qh8 Ne6 Qhf6+ Kh7 Qef5+ Kg8 Q6e5 Qd5+
2n3rq/1B1Pk2B/1RQ5/R2r1RK1/rNN1b2p/R3rQ1R/n2P1bP1/4B3 w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 e5 Kf3 c5 Kg4 e4 f4 e3 a6 e2 g6 e1R b6 h6 a7 c4 g7 c3 d6 c2 d7+ Kf7 f6 h5+ Kg5 h4 f5 Na6 b7 Qe8 b8R Qe7 Ne2 Nh6 Rh3 Qc5 Ba3 c1R Qa4 Ng4 Nf4 Nf2 Qc6 Nc7 Nd5 Qb6 Bd6 Re7 Raa3 Ng4 Nb4 Nh6 Ba6 Nd5 Bb7 Qd8 Bg3 Re3 Be1 Bc5 g8B+ Kf8 Ra5 Nc3 Na3 Na2 Bh7 Ng8 Nc4 Ne7 f7 Rcc3 Ra3 Red3 Ra5 Bf2 Ra3 Rd4 Ra5 Re3 Ra3 Kg7 f8R Rg8 f6+ Kh8+ Kh6 Rd5 f7 Qe8 Ba6 Qd8 Rb6 Bb7 Ra5 Nc8 Ra3 Rb8 a8R Qe8 Ra7 Ra8 Ra5 Rd6+ Kh5 Kg7 Kg5 Rdd3 Qc5 Bf3 Bb7 Be4 Qc6 Rd6 Ra3 Rdd3 R7a5 Rd4 Rab5 Ra4 Rf5 Qe5 Re8 Qb8 Ree5 Qa8 Ra5 Kf8+ Kh5 Ke7 Kh6 Re8 Kg5 Rd5 f8Q+ Kd8 Qfh6 Ke7 Qh5 Qb8 Qf3 Rg8+ Kh6 Qe5 Kh5 Qh8 Kh6 Rf8 Kg5 Rg8+
3N2r1/1QNN1R2/2B1bQn1/1p1qq1R1/2q2N1r/K1B2P1Q/Pnk1N1P1/5n2 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 g5 bxa5 f5 f4 Nc6 fxg5 f4 h4 f3 exf3 Bh6 g6 Bg5 hxg5 Nb8 d4 Kd7 Kd2 Kd6 Kc2 e5 Kb2 h5 g7 c5 g6 b6 a6 e4 a7 c4 Nc3 e3 Rb1 h4 Nh3 e2 Nf4 e1N Ka3 h3 Qb3 h2 Bd2 Bd7 Nce2 Bh3 Bc3 Nf6 g8N Rh4 g7 Ng4 Nf6 Nd3 g8Q Nd7 Qh7 N7e5 Nd7 Ng6 Qb2 Rc8 a8N Ne3 Nc7 Be6 Qh5 Qe8 Qg4 Qf7 Qh3 Rg8 Qb5 Qf6 Qa6 Qg5 Rb5 Qe5 Qb7 Nb2 Ra5 Ke7 d6+ Kf7 Nc5 Kf6 d7 Qd5 d8N b5 Ra7 Qe5 d5 Kg5 d6 Kf6 Bd4 c3 d7 c2 Bc3 c1Q Nc6 Kg5 d8Q+ Ne7 Qd6 Ng6 Nd7 Qd1 Nd8 Qdd5 Nd4 Qc4 Bd3 Nf1 Be4 Qcd5 Nde2 Qc4 Rg1 h1Q Bc6 Qh2 Rh1 Qg1 Qf8 Qgd4 Nc5 Qdd5 Qh6+ Kf6 Nd7+ Ke7 Qg5+ Kd6 Qgf5 Qd1 Qf6 Qdd5 Nb6 Kc5 Rh2 Qcd3 Nd7+ Kc4 Na6 Nf8 Qa8 Rhh8 Qg4 Nh7 Rh5 Qg5 Ndb8 Nf8 Rf7 Qge5 Qh3 Ng6 Rg5 Rh4 Nc7 Q3d4 Nd7 Q4e4 Nh5 Kd3 Qb7 Kc2 Nhf4 Qec4
5rRq/q2Q1K2/B1P1nRN1/kP2R1B1/PbQ1q2B/5p2/1N6/br1B1b1B w - - 0 1 legal: proof: f4 b5 g4 c5 d4 e5 fxe5 h5 dxc5 Rh6 gxh5 Rh7 a4 Rh8 Kd2 a5 Ke1 Nc6 Be3 Nce7 Bc1 Nd5 b3 Nb6 axb5 a4 Qd4 a3 Qd1 Na4 bxa4 Qb6 Qd5 Qc7 Qd1 Qd8 Kf2 g5 Ke3 d5 Kd4 Kd7 c4 Kc7 e4 f5 h4 f4 e6 g4 Ke5 d4 e7 d3 e8B a2 h6 g3 h5 g2 c6 Kb6 c7 d2 h7 Be7 c5+ Ka5 h6 Qd3 c6 Bb4 Qg4 d1Q Ne2 g1B Bh5 Bf5 c8B Ra7 Nbc3 Qd8 Bg2 Rg7 Ba6 Ne7 Kf6 Qc7 e5 Qd2 e6 Qa7 Nd1 Qe1 Nb2 Re8 h8R Bg6 h7 Qe3 Rg8 Bh2 h8B Nf5 e7 Qd1 Rf1 Qdd3 Bh1 Nd4 Qh4 Rc8 e8Q Qde4 Qd7 Ne6 Bd2 Qf2 Rae1 a1Q Bc1 Bh7 B5f3 Rg1 Kf7 Qc5 Bf6 Qa7 Be3 Rb8 Bf2 Bf5 Bg5 Bh3 Qg4 Bg2 Bfh4 Rd8 Nd3 Qh8 Nb2 Nd4 Rf2 Bf1 Qe6 Ra8 Qc4 Rc8 Nc1 Bg3 Ncd3 Ne6 Bd1 Ra8 Ne5 f3 Rfe2 Re8 Ng6 Be5 Rg2 Bg7 Rg4 Bf6 Rf4 Bfc3 Rf6 Rd8 Nd3 Ba1 Nb2 Be2 Ne7 Qe5 Bb3 Bd3 Re3 Rb1 Bd1 Bf1 Ng6 Qed4 Re5 Qe4 Bb3 Rc8 Bd1 Rf8+
1QQqkNB1/2RnB2B/1P1r1r2/R5rr/P3n1BP/4R2b/4pN2/1B2K1r1 w - - 0 1 legal: proof: f4 a5 e4 h5 Qxh5 g5 fxg5 d5 exd5 b5 b4 Bh3 c3 Bc8 Qg6 Bg7 bxa5 b4 Qd3 b3 Qh7 Bd4 Qh6 Bc5 Qh7 Bb4 cxb4 Qd6 Qg7 Qd7 Qh7 Qd8 h4 c5 d4 f5 g4 e5 d6 c4 b5 e4 d7+ Kf8 g6 f4 d5 c3 g7+ Ke7 d6+ Kf7 a6 e3 a7 c2 b6 f3 g5 e2 g6+ Ke6 Bg5 b2 Nc3 c1R+ Nd1 b1R Nh3 Rc6 Be7 Rc7 Ng5+ Ke5 Bh3 Rc5 Ne6 Rd5 Nf8 Rb2 Bg4 Na6 Nf2 Qc7 d8R Qb8 d7 Rbb5 Re8 Rd6 d8Q Nf6 g8B Nd7 g7 Nac5 Qc2 Rh5 Bh7 Ne4 g8B Rf6 a3 Rd5 Qdc7+ Rdd6 Qb7 Qc7 Qb8 Qd8 Rg1 Rg5 a4 Rh5 Rc1 Rg5 Qbc7 Rb8 a8B Rb7 Rg3 Ra7 Bad5 Ra5 Ba2 Rb5 Bb1 Rc5 Ne6 Kd5 Qb8 Kc6 Nf8 Rh5 Bc4 Rcg5 Rh3 Ndc5 Bcg8 Be6 Ng6 Kd7 Rf8 Bf5 Rf7 Ke8 Nf8 Nd7 Qcc8 Be6 Rc7 Rfg6 Rf5 Rf6 Ra5 Bf5 Rg3 Be6 Bh3 Bg4 Bg2 Bh3 Ng4 Rfh6 Bh1 Bf1 Bg2 Rhf6 Bh3 Bg2 Nf2 Bf1 Bg4 Bh3 Nd3 Nec5 Kd2 f2 Rf3 f1R Re3 R1f3 Ke1 Rg3 Nf2 Ne4 Re5 Rg2 Ra5 Rg1+
Q2b1BK1/P5rr/1rQ5/N1r3PQ/p2Rq2B/5Q1B/nr1P2nk/3QR2N w - - 0 1 legal: proof: b4 a5 h4 b5 a4 f5 axb5 g5 hxg5 d5 e4 d4 exf5 d3 b6 Ra7 b5 Ba6 bxa6 Qc8 cxd3 Ra8 d4 Qd7 d5 Qd8 Ke2 Kf7 Kf3 h5 Ke4 c5 Ke5 a4 g4 c4 f4 e6 f6 Kg6 b7 c3 f7 h4 a7 h3 f5+ Kh7 g6+ Kh6 d6 Kg5 g7 Kh4 d7 Kg3 f6 c2 Ba3 c1R Be7 h2 Bh3 Qb6 d8Q Na6 b8Q Qb7 Qe8 Nh6 g8Q Nf5 Qbc8 Rb8 Na3 Ne3 Qcc6 Nb4 Nc4 Rh6 Na5 Ng2 Rb1 Bg7 f8Q Na2 Qh5 Rc5+ Kd6 e5 Ke6 e4 Kf7 e3 Rb4 e2 Rd4 e1R Ne2+ Kf2 Qh8 Rg1 Kg8 Rh7 f7 Bf6 Bd8 Qb4 Be7 Rb6 Ng3 Qb1 Qfa8 Qe4 f8B Rb2 Bd8 Rhb7 Qhd5 R7b6 Qhh5 Bh4 Bc7 Bd8 g5 Rf1 Rg1 h1R Q5b3 Re1 Be5 Re3 Re1 Rf3 Qa3 Rf7 Bc7 Rh7 Qab3 Rf1 Qbf3+ Kg1 Bf4 Kh2 Nh1+ Kg1 Be3+ Kh2 Bf2 Rg7+ Kh8 Rg1 Bh4 Rf1 Qb5 Rf2 Qbc6 Rh7+ Kg8 Rf1 Qfe2 Rff7 Qef3 Rfg7+
bKBB3b/2Q5/4n1Pr/BkN5/3P2QR/n3b1np/2P1bQQQ/3N1q1R w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 h4 Qa5 hxg5 Qd8 Be2 d5 Bd3 c4 Bf1 c3 dxc3 d4 Rh5 a5 Rh4 d3 Rh1 Ra7 Be2 Rd7 Bf1 Rd4 cxd4 Bb7 Nh3 Ba6 Ng1 Bc8 Kd2 Kd7 Ke3 e5 Ke4 h5 Kd5 a4 g4 d2 b4 h4 f4 e4 f6 a3 f5 e3 b6 e2 b5 e1N b7 a2 f7 Nc6 b8Q Be7 f8B Na7 g6 Nd3 b6 Bc5 f6 Rh6 b7 Rh8 g5 Qe8 f7 Be7 g7 Nb2 Qg4+ Kd8 Qh2 d1B b8Q Nc4 Nd2 Na3 Nh3 N7b5 Ne4 Be2 Nc5 Rh6 Bd2 Bf6 Ba5+ Nc7+ Kd6 Ne7 g8Q Qb5 Nf2 Bh8+ g6 Qd3 Nd1 Nf5+ Kc6 Qc4 Bh3 Ng3 Qg7 Qd3 Qa8 Qc4 Kb6 Ne6 Qag2 Bb7 Ka7+ Kc8 Rb1 a1B Be7 Ba8 Bed8 Bc3 f8Q Bd2 Qff2 Be3 Qe5 Qd3 Rb7 Qf5 Rh7 Qf7+ Nb7 Kd7 Kb8 Bb5 Qg7 Be2 Nc5+ Kd6 Nb2 Qf3 Nd1 Kc6 Qc7+ Kb5 Qg5 Nf4 Bc8 h3 Qg4 Ne6 Qfg1 Qf1 Q1f2 Rh5 Rh6 Rg5 Rh4 Rh5 Bd2 Rh7 Ba5 Rh6
1b3Q2/2n3B1/1qq4B/rNnBqp1R/2BBN2R/1P2RPq1/4K1P1/1kb1Q3 w - - 0 1 legal: proof: h4 d5 c4 a5 cxd5 b5 Nc3 g5 hxg5 b4 Nb1 b3 axb3 a4 e4 a3 d4 a2 e5 Nd7 d6 Ra3 bxa3 Nb8 d5 Bg7 Qd3 Kf8 Qd1 Bd7 e6 Bh6 exd7 Kg7 Be3 Kg6 Bc1 Bf8 a4 Kf5 a5 Ke4 g6 f5 g7 h5 a6 c5 a7 e5 a8R c4 Kd2 h4 Ne2 h3 Nd4 h2 Nb5 Ne7 g8B Qb6 d8B Nd7 Ra4 Nc5 d7 Bh6+ Ke1 Bf4 d6 Nd5 Bf6 Rh7 d8Q Ra7 d7 Ra5 Bg7 Bg3 Nd4 c3 Qf8 c2 Bch6 Bf4 f3+ Ke3 Ne2 e4 Nd2 Kd3 d8B e3 Nd4+ e2 Nb5 Bb8 Bdf6 Nc7 Rb1 a1Q Bd5 Qb2 Rg4 Qd4 Rg5 Qg4 Bd4 Qh3 Rb2 c1B Rh5 Qg4 Kf2 Qgg6 Rc2 Qgc6 Ra2 Bb2 Qa1 Kc2 Ke3 e1Q+ Be2 Qh4 Ne4 Qhf6 Bec4 Qfe6 Qg1 Qe5 Ra1 Ba3 Re1 Bc1+ Kf2 Kb1 Re3 Kc2 Qe1 Kb1 Rg1 h1Q Ke2 Qh4 Rh1 Qhf4 R1h4 Qg3
B7/1rrB2nN/P2N3b/BP1Q3B/N6k/QBPpnr2/KR4Rb/1r5r w - - 0 1 legal: proof: a4 f5 d4 c5 dxc5 g5 h4 f4 hxg5 f3 exf3 Nc6 f4 Nb8 f5 Qb6 Qd3 Qc7 Qd1 Qd8 b3 a5 Bd3 b5 Be2 Ba6 Bf1 b4 Bb2 Bb5 axb5 a4 Bc1 a3 Bf4 Qa5 Bc1 Qa4 bxa4 Ra7 Bd3 Ra6 Bf1 Ra8 Kd2 Kf7 f4 e5 g4 h5 f6 Kg6 f5+ Kh7 g6+ Kh6 a5 Kg5 a6 d5 f7 h4 c6 a2 c7 e4 c8B d4 g7 h3 f6 h2 Na3 b3 Ne2 b2 Nc4 b1R Nc3 Bc5 f8N Rh7 f7 Bd6 Rg1 h1R Bd7 Rb4 Rg2 Ne7 g8B Nec6 Rb1 a1B Be2 Na5 Rb2 Bg3 Nd6 Kh4 g5 Rc4 g6 Rc7 g7 Bh2 Na4 Nbc6 Bh5 Ne7 c3 e3+ Kc2 e2 Kb1 e1R Bf4 Nc4 Ka2 Nf5 Qb3 Nce3 Qd5 d3 Be5 Rh8 Nh7 Rb8 f8Q Rb1 Bge6 Rhf1 g8B Ng7 Bf5 Rbb7 Be4 Rf4 Bd4 Rf3 Bb6 Rb8 Ba5 Rbb7 Rbf2 Bb2 Rc2 Ba3 Rb2 Bc5 Qc4 Nd1 Bhg4 Rb8 Nf6 Bhg1 Ba8 Bce3 Nb7 Kg5 Qa3 Rh1 Nh7+ Kh4 Nd6 Bh2 Bh5+ Bef4 Qc6 Rbb7 Bb3 Bh6 Qd5 Ne3
2Nq3B/r2N1P1B/RRr1P2k/Q2bBBb1/1B1K4/q3p1P1/N1Qq4/1b1r4 w - - 0 1 illegal: No possible last move
k1bB1Rr1/BR1r1NNr/3rBR2/2b2P1b/7R/K1p3P1/2Pr1q2/Q2Q2R1 w - - 0 1 legal: proof: g4 e5 e4 Ke7 f4 Kd6 a4 f5 gxf5 g5 d4 b5 axb5 g4 dxe5+ Kc5 f6 g3 f7 g2 f5 Nf6 exf6 Nc6 e5 Nd4 Bg5 Ne2 Bc1 Ng3 hxg3 Qe7 Bh6 Qe8 Bc1 Qd8 Kd2 Kb6 Kc3 Kb7 Kb3 c5 b6 d5 e6 a5 e7 h5 e8Q d4 Nf3 g1R Ka3 h4 b4 a4 b5 h3 Ne5 h2 Bg5 d3 Nd2 Rh3 Nb3 c4+ Nc5+ Kb8 b7 Be7 f8R c3 f7 d2 Bc4 Rg2 Be6 Rh6 Bh4 Ka7 b8R Qb6 Rg1 Bd6 Bd8 h1R Rh8 Rg6 f8R Rh7 Nf7 Rf2 Ra2 Rf6 Qa1 d1B Rb2 Bh5 Qd7+ Bb7 Rc8 Rd2 Rc6 Kb8 Rb3 Bc8 Rb2 Qa7 b6 Be7 b7 Rg6 Bd5 Rd6 Ne6 Qf2 Ng7 Ra7 Be6 Ra8 Kb4 a3 Ra6 a2 Ka3 R6d3+ Rb4 Bc5 Qd4 Ra7 Qg4 Rd7 Qgd1 Rh6 Rh7 Rg6 Rh6 Rg5 Ra4 Ra6 Rf6 Rad6 Ra6 Rg6 Rb6 Rh6 Rb5 Rh7 Rb6 Ka7 b8B+ Ka8 Rb5 Be2 Rb7 Bh5 Qab1 a1R+ Qa2 Rb1 Ba7 Rb2 Qaa1 Ra2+ Kb3 Ra4 Rh4 Rg4 Ka2 Be3 Ka3 Bb6 Ne8 Rg8 Ng7 Bc5+
1n2r3/2R1Q1N1/B1n2P2/1NBR1qkq/1RRK1p2/n6B/r3PP2/Rq2Q1n1 w - - 0 1 legal: proof: d4 b5 g4 d5 c4 e5 cxd5 f5 dxe5 b4 g5 b3 axb3 Qf6 b4 Qd6 b5 Qd8 h3 Be7 Rh2 Bd7 Qa4 Bf6 gxf6 g5 Be3 g4 Bc1 g3 Rh1 Be6 Qd1 Bf7 Bg2 Bh5 Bf1 Bg4 hxg4 Qd7 Qd3 Qe7 Qd1 Qd8 Kd2 Kf7 Kc3 Kg6 b4 c5 d6 a5 d7 h5 b6 a4 g5 c4 b5 h4 e6 a3 e7 g2 e8Q+ Kh7 b7 a2 b6 h3 Be3 h2 Qe7+ Kg6 Nh3 g1Q Kd4 f4 Nc3 Kh5 g6 Qg4 g7 Qc8 d8R Qg6 Rd5+ Qcf5 Nb5 c3 Ng5 c2 Bh3 c1N Ne6 Nd3 Qe1 Ne5 Rc1 a1N Rc4 Ra2 Rg1 Nh6 g8B Nhg4 Ng7+ Kg5 Be6 h1Q Bc8 Re8 Rf1 Nbd7 b8R Nh2 Ba6 Qh5 Rbc8 Nb8 b7 Qg1 R8c7 Nc2+ Kc5 Na3 Kd4 Nbd7 b8R Nc6+ Kc3 Qh1 Bc5 Nf3 Rbb7 Ng1 Rb6 Na5 Kd4 Nb8 Qc3 Qg2 Ra1 Qf1 Rbb7 Qb1 Qe1 Qh4 Nc3 Qg4 Rbb4 Qh5 Nb5 Nac6+
4rbBr/q1R2K2/BR1P1pN1/B3P3/6QP/2rBkB2/1qR4N/bQ2b2b w - - 0 1 legal: proof: f4 d5 b4 h5 c4 e5 cxd5 a5 bxa5 h4 fxe5 h3 g3 Rh7 Kf2 Rh4 Ke1 Rh8 Qb3 g5 Kd1 g4 Ke1 Ne7 Qd1 Ng6 Bb2 Nc6 Bc1 Nd4 Kf2 Nh4 Ke1 Ndf5 gxh4 g3 Nc3 g2 Nb1 Ng3 hxg3 Ra7 Kf2 Ra6 Ke1 Ra8 Kf2 Kd7 Ke3 c5 Ke4 b5 Kf5 h2 a4 f6 Kg6 b4 e4 b3 d4 b2 d6 Ke6 a6 c4 a7 c3 d5+ Kd7 e6+ Ke8 d7+ Ke7 e5 c2 a5 Bh6 d6+ Kf8 e7+ Kg8 e8R+ Bf8 a6 Rh7 g4 Qb6 d8Q Qd4 g5 Bd7 Qg4 Be6 Bd3 Rh8 Qb6 Bc4 Rb8 Bb5 Ra2 Qd5 Nh3 g1B Bd2 c1B Ba5 Qg2 Nd2 b1R Rc2 Qf2 Nf1 Rb3 Nf4 Bd2 Rb7 Bb4 Rbc7 Re8 a8B Bc6 a7 Be1 Bb7 Rc3 a8B Bd5 Qb4 Qa7 Bba6 Bd4 Qb1 Bb7 Rg1 h1Q Nh2 Qg2 Rf1 Qe2 Rg1 Bh1 Bf3 Qd2 Rg2 Qc1 Rb2 Qd2 Rb6 Qb2 Rc2 Be7 Kf5 Kh7 g6+ Kh6 g7 Bf8 Ng6 Kh7 Qg1 Kh6 Bg2 Kh5 g8B Rd8 Ke6 Ra8 Kf7 Re8 Nf1 Kg4 Nh2+ Kg3 Ne7 Kf4 Bf3 Be3 Qg2 Bd4 Ng6+ Ke3 Qg4 Qb4 Rg2 Rc6 Ra2 Ba1 Rd2 Rc3 Rc2 Qb2
4KnkN/3B1qP1/BB3P1p/n2P3q/2Q1B1r1/2n2RN1/1N2r1q1/Q2B1q1R w - - 0 1 illegal: No possible last move
n2B1n1b/1P4R1/Kb1b1Q2/5N1Q/1NkNN3/1p1NP1R1/Pb2b3/QB4qb w - - 0 1 legal: proof: g4 a5 b4 h5 gxh5 d5 e3 e5 bxa5 g5 c4 b5 Ke2 e4 Ke1 d4 Ke2 b4 exd4 e3 Kf3 e2 d5 Rh6 Ke3 Re6+ Kf3 Re3+ fxe3 Ra6 Kg2 Rb6 Kf2 Rb5 cxb5 Bb7 Bh3 Ba6 Bf1 Bc8 d4 Kd7 h4 Kd6 a6 e1B+ Ke2 c5 Kd3 f5 Kc4 g4 b6 b3 Kb5 g3 h6 c4 a7 g2 a8Q c3 b7 f4 h5 f3 h7 f2 h8N c2 h6 Be6 h7 Qf6 Qh5 Qh4 Nf3 g1B Nc3 Qg3 Ng6 Qf4 h8Q Qe5 Bd3 f1B Ba3+ Kc7 Rh3 c1B Qa6 Bg3 Nf4 Be1 Rg3 Bc5 d6+ Kd7 d5 Ne7 Nh4 Bb4 Nf5 Ba5 Ne4 Bb2 Rd1 Bg2 Bb1 Qg7 Nd3 Bec3 Rf1 Bf2 Rg1 Bh1 Bb4 Bd8 Ba5 Ng6 Bb6 Bfe1 Ba5 Be7 Bd8 Nf8 Qb6 Qg5 Qbd4 Bed2 Qhf6 Na6 Qde5 Qg8 Rg7 Be1 R1g3 Nc7+ Kb6 Na8+ Ka6 Ba5 Qd4 Bb6 Qc3 Bc1 Qa1 Bc3 Ne1 Qh7 Bc7 Bba5 R7g6 Bb6 Qg7 Bca5 Qg5 Qh3 Qh5 Bb4 Qgc3 Ke8 d7+ Kf7 d6 Bb2 d8N+ Ke8 Qch8 Kd7 Nc6 Qh2 Ncd4 Bf6 Q8h6 Bh8 Rg7+ Bf7 Qf6 B4c5 Nb5 Kc6 d7+ Kd5 d8N Qg2 Nc6 Bd6 Nbd4 Qg1 Bd8 Be6 Nb4+ Kc4 Ne7 Bd7 Ned3 Bg4 Nef5 Be2
n4bn1/Q3n1N1/N2pB2r/1R2r3/k2N1P1P/3Rp1q1/2NBKP1b/NQ2R3 w - - 0 1 legal: proof: g4 b5 d4 f5 a4 c5 axb5 f4 dxc5 f3 exf3 Qb6 f4 Qd8 b3 h5 gxh5 a5 b6 a4 Ne2 a3 Ng1 Ba6 Bb2 Bb5 Bc1 Ba4 bxa4 Rh6 Nd2 Rh7 Nb1 Rh8 c4 g5 h4 e5 a5 a2 c6 g4 c5 g3 b7 d6 a6 g2 c7 Kd7 c8N Kc6 h6 e4 h7 e3 a7 Nh6 Ke2 Kb5 c6 Bg7 c7 Nf7 Na3+ Ka5 Nc2 Bf6 Bd2+ Bc3 Nf3 g1B Qb1 Qg8 Nfd4 Ka4 Nb6+ Ka5 c8N Qg5 Nd5 Bh2 Bh3 Nh6 Nce7 Re8 h8R Nd7 b8N Qg3 Be6 Ka4 Nef5 Nb6 Rd1 Ng8 Na6 Rac8 Rh6 Na8 Rh5 Rc7 Ndb4 Rh7 Ng7 Rh6 Rb5 Bb2 Bc4 Re5 Be6 Bc3 Be1 Bb2 Rd3 Bc3 Bd2 Bb2 Qc1 Bc3 Rb1 a1N Qf1 Nb3 Re1 Bb2 Na1 Na5 Nbc2 Nc6 Qh1 Nce7 Qe4 Nb6 a8Q Bc3 Qa7 Na8 Qh7 Rg5 Nc6 Bf6 N6d4 Re5 Nh5 Bg7 Qg6 Bf8 Ng7 Bg1 Rdb3 Nb6 Ncb4 Rhh5 Qb1 Na8 Rd3 Rh6 Nbc2 Bh2
B4n2/2B2pP1/1PNq3B/Q3pP2/bBQ3R1/2b1brN1/NK1kB3/1nR2r2 w - - 0 1 illegal: No possible last move
KQ1NqN1R/4N3/3r4/2q2QPb/pN2pB1b/1B1n2nP/P4nN1/kB2R3 w - - 0 1 legal: proof: c4 h5 b4 b5 f4 a5 g4 g5 gxh5 c5 bxc5 d5 cxd5 f5 e4 g4 exf5 Ra6 Be2 Rg6 Bf1 Rg5 fxg5 Rh7 Bg2 Rh6 Bf1 Rh8 Kf2 Kd7 Ke3 e5 Ke4 b4 d4 a4 c6+ Kd6 h6 b3 h7 b2 f6 g3 c7 g2 f7 Nd7 Qf3 Ne7 Bf4 Ng8 Bc4 Qe7 Nh3 g1Q Bb3 Qf6 Nc3 Nh6 Re1 Be7 f8N Ba6 c8B Rg8 h8N b1N Nhg6 Qe6 Qd3 Bf6 Ne7 Rg6 Qf3 Bb7 Qg4 Bc6 Qf5 Ng4 Ba6 Qf7 Bd3 Bb5 Bdc2 Be2 Bd3 Qe8 Bdc2 Kc7 d6+ Kb6 Kd5 Ka5 Kc6 Kb4 Kb7 Ka3 d5 Nd2 Bb1 Nc5+ Ka7 Kb2 d7 e4 d8N Bd4 d6 Bd1 d7 Bf2 Ka8 Nd3 Ncd5 Nf1 Nb4 Re6 Bg3 Ka1 Nf4 Be2 Ng2 Rd6 Bf4 Bh4 h3 Nfe3 Rc1 Bf3 Rc8 Ngf2 Rb8 Qc1 Re1 Bh5 Ndc6 Nd5 d8Q Qc5 Rb6 Nc3 Qb8 Rd7 Nd8 Ne2 Rh6 Ng3 Rh8 Rd6
5R1B/qb1P4/2NQ2PN/1B1r1q2/1Ppb1R2/B1RB2b1/pn1QK1k1/2nB4 w - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 f4 h4 f3 hxg5 Na6 g6 Rb8 g7 Rb6 g5 Rf6 g6 Rf5 Rh5 Rg5 Rh1 Rg3 fxg3 Nb8 g4 f2+ Ke2 Qd7 g5 Qd6 Bg2 f1N Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Rh6 c5 b4 a4 d4 a3 Rh3 h5 d6 Kd7 f6 Ke6 d5+ Kf5 b6 Ke4 f7 e5 b7 a2 Nc3+ Kf5 Ne4 h4 Nf6 e4 Qd2 e3 Ne2 Nc6 b8B Ne5 Ba3 Qe7 Ng4 Ke4 Nd4 e2 Rc3 h3 Nc6 Nh6 g8B Qe8 g7 h2 g6 h1Q d7 Bb7 d8Q Qh5 d6 Nc4 Rd1 Nf5 Qc7 Nd4 d7 Nb2 Kf2 Be7 f8R Bf6 Bc4 Nb3 Bb5 c4 g8B Qh3 Be6 Rh5 Nh6 Rd5 Bg4 Qe5 Ke1 Qf5 Ba7 Qe3 Bd4 Be5 Qd6 Kf4 Bf3 Kg3 Rdc1 Kh2 Bg4 Qg1 Rf3 Qe3 Rf4 Bh8 Bf6 Qa7 Rc3 Kh1 Bd4 Kh2 Kf2 e1B+ Kf3+ Kh1 Bd3 Bg3 Ke3 Bg7 Bd1 Kg1 Ke2+ Kg2 Bf6 Bh8 Bg5 Be5 Bf6 Bd4 Bh8 Nc1+
N2Rnb1k/RP3PRb/RK3n2/4q2p/2p1B1Q1/4PN2/qRQ1n2Q/B3r3 w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 a5 a4 e5 axb5 g5 hxg5 f5 e3 f4 exf4 e4 f5 e3 Ke2 Ra6 Kd3 e2 Kc3 Re6 Kd3 Re3+ dxe3 Nc6 Kd2 Nb8 Kc3 Kf7 Kd4 Kg7 f4 e1N b4 h5 g4 c6 g6 a4 f6+ Kh6 g7 Kh7 g5 a3 d6 a2 Kc5 Bb7 g6+ Kh6 f7 Qh4 f5 Qh3 b6 Ba6 b5 Qf3 f6 Qg4 b7 Qe4 b6 Qe6 Na3 Qg4 Rh2 Qg2 Bd3 Bb5 Be4 Qd2 Qc2 Ng2 Nf3 Ne7 g8R Bc4 d7 Bg7 d8R Nd5 f8R Bd3 f7 Ngf4 Bb2 Ne2 Nb5 Nf6 Nc7 Ne8 Na8 Rh7 Rb1 Rh8 Ba1 Qa5+ Rb5 Qa7 Rb2 Nd7+ Kb4 Rh7 b8Q Ndf6 Kc5 Qc7 b7 Qe5+ Kb6 c5 Rf2 c4 Rg2 Nd6 Rfe8 Bf8 Re6 Nde8 g7 Rh8 Rg5 Rh7 Rf5 Kg6 Rc6 Rh6 Re6 Kh7 Rg5+ Rg6 Rg1 Qf5 Qh2 Qf4 Rg5 Qe5 Rf5 Rg1 Red6 Qe6 Ra5+ Qf5 Ra7 Re1 Bd5 Qe5 Bc6 Bf5 Be4 Kh6 Rh8+ Bh7 g8Q Qd5 Qgg2 Qe5 Qgh3 Kg7 Qg4+ Bg6 Rg8+ Kh7 Rg7+ Kh8 Kc6 Bh7 Kb6 Nf4 Rd5 Rc1 Rda5 Ne2 R5a6 Rf1 Rb5 Rd1 Bb2 a1Q Bc3 Qb1 Ba1 Re1 Rb2 Qa2
7k/B4n1B/QNQb3N/2b2K1P/PNnR3r/n2r1p2/2P1B2p/1r2NNR1 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 e5 bxa5 c5 fxe5 h4 d4 Ra7 dxc5 Ra8 h3 g5 Nd2 b6 Nb1 Bb7 Bd2 Bf3 Bc1 Qf6 Bb2 Qg6 Bc1 Qh5 gxh5 g4 Na3 g3 Nb1 Bg4 hxg4 Ra7 Nc3 Ra6 Nb1 Ra8 Kd2 f5 Kd3 Kf7 e4 Kg7 a4 d5 c6 b5 e6 h3 a6 f4 c7 h2 c8Q g2 g5 d4 g6 b4 e5 b3 Ke4 b2 e7 d3 e8N+ Kh6 g7 Kh7 e6 d2 e7 Nf6+ Kf5 Kg8 a7 Nc6 Nc7 Nd5 e8B Nc3 Nd5 Nb4 Qa6 Be7 Qf3 d1N Be2 Bd6 Bg6 Nd3 Be3 Ne5 Nb4 Rc8 a8N Nb5 Qfc6 Nf7 Nd2 b1R Nb6 Nb2 Ngf3 g1B Ne1 f3 Nf1 Na3 Bd4 Bf2 Rg1 Nbc4 Bc5 Re8 Be3 Re4 Bd4 Rb2 Rd1 Rh4 Bc5 Rb1 Rd4 Ng5 Be8 Kh7 g8N Nf7 Nh6 Be3 Bd7 Rd8 Bc8 Kh8 Be6 Ng5 Bg8 Nf7 Bh7 Rd7 N6d5 Bf2 Ba7 Be3 Nb6 Rd8 Rdg4 Bec5 Re4 Bb8 Reg4 Rd3 Rd4 Bbd6
3R4/2QQ2rP/1P3k1n/bNR2N2/1Pbnp2p/3r1B1K/2NN2rN/n3B1Q1 w - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 d5 cxd5 f5 e4 h5 exf5 h4 a4 Rh6 axb5 Rh8 g4 Qd6 Ra6 Qg6 Ra1 Qh5 gxh5 Kd7 Nh3 Kd8 Ng1 Ke8 f4 Kf7 Kf2 e5 Kg2 a5 b4 c5 d4 e4 g6+ Kg7 h6+ Kf6 g7 c4 d6 a4 d5 c3 d7 c2 d8Q+ Be7 h7 a3 d6 a2 d7 Na6 Be2 Nb8 Bf3 Ba6 Bd2 c1N Be1 Ra7 Kh3 Nh6 g8N+ Kg7 f6+ Kg6 f7 Bf8 f5+ Kg7 f6+ Kg6 Qc7 Bc5 f8N+ Kg5 d8Q Bd4 f7+ Bf6 Nd2 Ra8 Qdd7 Nd3 Ne6+ Kg6 Rc1 a1R Rc5 Ra3 Nd4 Ra7 Nc2 Bd8 Ne7+ Kf6 f8N Nc6 Ne6 Nc1 Nf5 Rd3 Ned4 Nb3 Rh2 Na1 Rg2 Rb7 Rg8 Be7 Rd8 Rg8 Nge2 Rg2 Neg3 Bd6 Ngf1 Be5 Nh2 Bg3 Qcc8 Bc7 Qb1 Ba5 b6 Ra7 Qcc7 Bc4 Nb5 Nd4 Bg3 Ra6 Qg1 Ra8 Be1 Rc8 Rh8 Re8 Rg8 Re7 Rd8 Reg7
NN1k4/r1b2BpN/6P1/Q3Bq2/2bnbq2/2KQRPP1/3N1NpQ/q3R3 w - - 0 1 illegal: Other
q6N/P3NPpN/qQ2K3/R1B2bR1/2n2P2/1Np2B2/2k2Bqb/1b1N2Qr w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 b4 Ra7 bxa5 b4 d3 Rb7 d4 Rb5 cxb5 c4 Bd2 Na6 Bc1 Nc5 dxc5 Bb7 Qf3 Ba6 Qd1 Bc8 Kd2 Kf7 Ke3 Kf6 Ke4 e5 Kd5 d6 h4 e4 f4 b3 a4 c3 h6 b2 h5 e3 b6 e2 a6 e1Q c6 Qde8 c7 Qg3 b7 Rh7 b8B Qge1 a5 Qg3 a7 Qa4 a8Q Qe3 a6 Qd7 a7 Be7 Be2 Ba6 c8N Qc7 Qc6 Qf2 Nh3 Qg3 Rg1 Qb6 Nd2 b1B Ra5 Qg6 Rg5 Bad3 Bf3 Qa6 Qg1 Bf8 Qcb6 Ne7+ Kd4 Bdc2 Nb3 Nd5 Nf2 Ne3 Ne7 Nc4 Nd1 Qe8 Bc7 Qa8 Ba3 Rh8 h7 Be4 Nc6 d5 h6 Be7 Bad6 Bec2 Kc5 d4 Kd5 d3 Bc5 d2 Bf2 Bc5 Bd6 Re8 h8N Re1 h7 Rf1 Qg4 Rh1 Ng6 Bd3 h8N Bdc2 Bh4 Bg1 Nf8 Bh2 Bc5 Bd3 Qg1 Bdc2 Ne3 Bd3 Be1 d1Q Bf2 Qf1 Nd1 Bdc2 Nhg6 Qg2 Nh7+ Kf7 f6 Bf5 Kd4 Ke6 f7 Bg4 Nh8 Bh3 Rg3 Kf5 Kd5 Na3 Kd6 Nc4+ Ke7 Bg4 Be2 Bh3 Rg5+ Ke4 Bh5 Kd3 Bf3 Nd2 Kd6 Bf5 Ne7 Kc2 Ke5 Be4 Kd6 Nc4+ Ke6 Bf5+
KbQ1QQnB/3rQ2q/2B3R1/p1Pq1PP1/5q2/Qnp1q3/2Nk2B1/4NR2 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 b4 hxg5 b3 axb3 Na6 b4 Nh6 b5 Nb8 b6 Ng8 b4 a5 b5 Ba6 b7 c5 b6 Bb5 cxb5 c4 d3 c3 Ra2 Nc6 Ra1 Rc8 Qd2 Nb8 Qd1 Rc4 dxc4 Qc8 Ke2 Qc7 Ke1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 h5 Kd5 e4 f4 d6 g4 e3 g6+ Kf6 g7 h4 g5+ Ke7 f6+ Kf7 f5 e2 c5 e1Q Na3 h3 Be3 h2 Qb3 Rh7 Bd4 Nc6 b8Q Qee8 b7 Qed7 b6 Q8e7 Bg2 Qde8 Nc2 Qe3 Rf1 Qf4 Qa3 Qee3 Qa7 Ke8 f7+ Kd7 Nf3 Be7 Bf6 Nd4 f8Q Nb3 Nfe1 Bd8 b8Q+ Bc7 Rhg1 h1Q b7 Qh5 Rh1 Qhh4 Qba8 Bb8 Be5 Qh5 Bd4 Qg6 Rh6 Qh5 Rg6 Qhh2 Kc4 d5+ Kb5 Qh5 Bf6 d4 Kb6 d3 Bd4 d2 Bf6 Nh6 g8B d1Q B8d5 Ng8 Bh8 Rg7 Bdf3 Qd5 Ka6 Qh7 Be4 Be5 Qae8+ Kc7 Bef3 Rd7 Be4 Bd6 b8Q+ Kc6 Bef3 Qde4 Qbc8+ Kd5 Qab7+ Kc4 Ka7 Bb8+ Ka8 Q4d3 Bc6 Qd5 Nf3 Kd3 Nfe1+ Kd2 Qa7 Rd6 Qae7 Rd7
n1N1Q2B/BKbB1N2/2R1b1bB/4P3/Q2p2P1/n2pPB2/5Rb1/k1N1b2q w - - 0 1 illegal: Other
QrB1N2R/N2PqPpQ/1k1pqB2/rq1R2nK/2Bnq3/N7/6P1/4N1N1 w - - 0 1 legal: proof: c4 b5 a4 f5 axb5 h5 e4 d6 exf5 h4 c5 h3 c6 Rh6 Qh5+ Rg6 Qxh3 Rh6 Qh4 Rh8 Qh6 Nd7 Qh7 Nb8 Ke2 e6 Ra6 Ke7 Ra3 Bd7 cxd7 c5 Ra4 Kf7 Ra1 Be7 Kd1 Bf6 Ke1 Ke7 d4 c4 Be2 Bg5 Bf1 Bd2+ Ke2 Ba5 Kd1 Bb6 Ke1 Bc5 dxc5 Qc7 Bh6 Qb6 Bc1 Qd8 Ke2 a5 Kf3 a4 Kg4 c3 h4 c2 f4 e5 b4 a3 f6+ Ke6 b6 Kd5 h5 Kc6 b5+ Kb7 f7 a2 f8Q e4 f5 e3 f6 e2 h6 e1Q f7 Ra7 c6+ Ka8 c7 Kb7 c8B+ Ka8 Bc4 Qe3 Bb2 c1Q Bf6 Ra3 b7+ Ka7 Kh5 Nc6 b8N Qcc3 b6+ Ka8 b7+ Ka7 Na6 Qcd2 b8N Rb3 Nc7 Qb4 Ne8 Qe6 Na3 Nd4 Rd1 a1Q Nc6+ Kb6 Na7 Qde7 Rd3 Qf1 Rhh3 Nc6 Rd5 Nd4 Qf5 Qfe1 Kg4 Q6e5 h7 Qb5 Bb7 Nh6+ Kg5 Ka5 Nc7 Kb6 Qa8 Rb8 h8N Ng4 Ne8 Q1e4 Bc8 Qc6 Ng6 Q5e6 Rh8 Ne5 Nh4 Rb5 Nhf3 Ra5 Kh5 Qb5 Ne1 Nef3 Qh7 Ng5
2n1R3/qPNN1rpK/Nb2bQp1/8/B2NpnR1/2QP2PN/1B2R3/2n2k2 w - - 0 1 illegal: Other
2nr1bRQ/Np2PB1Q/1n2Bp1Q/3R3P/B6q/1Kp1N1Pr/B4r2/4B1k1 w - - 0 1 illegal: No proof kernel
NR2RbKn/1P2q1pB/6R1/1kq1R2R/7Q/4N1Br/1p1PqPp1/Qn2N3 w - - 0 1 illegal: Other
2RQ1QB1/1P1Kp2R/n1q2Bb1/4q1r1/q2p3P/3Qp2R/3NP1qR/k1N3R1 w - - 0 1 illegal: Other
B1rR1BQ1/Q2pBP2/1PBQ4/K5q1/p1r2n2/BrRP1p1p/1n4Nk/2N5 w - - 0 1 legal: proof: a4 b5 axb5 f5 b4 g5 c4 g4 h4 f4 e4 g3 fxg3 Bh6 g4 Bg5 hxg5 Ba6 b6 Bb5 cxb5 Nc6 Be2 Nd4 Bf1 Nf5 exf5 Qc8 Qe2 Qb8 Qd1 Qd8 f6 Kf7 b7 Ke6 b8B Ke5 b6 a5 g6 h5 g7 a4 b5 h4 g5 f3 g4 Kf4 b7 Kg3 b6 e5 g6 c5 g5 c4 Ra3 c3 Bb5 c2 Bd6 Rb8 Ne2+ Kg2 Nf4+ Kg3 Nc3 e4 Bc6 e3 Na2 e2 Rc3 Qe8 Be7 Rd8 b8B Qf8 Bbd6 Rh7 Bca3 c1N Ng2+ Kg4 f7 Nh6 g8B Rg7 Bh7 Rg8 g7 Qe8 g6 Rh8 g8Q Nf5 g7 Ng3 Bhe4 Rc8 Qf8 Rh5 g8Q+ Rg5 Ba8 Qd8 Bec6 Nh5 Rg1 Kh3 d3 Rb5 Kd2 e1R Qc2 Ne2 Nc1 Nhf4 Bdc5 Rb4 Qh6 Kh2 Qd6 Rb3 Bcb4 Nd4 Bf8 Re6 Re1 Rg6 Re8 Qg5 Rd8 h3 Rc5 Rc7 Qc4 Nb5 Qdd5 Ne6+ Kc2 Nc3 Qa6 Qg4 Qa7 Rc8 Rc4 Rg7 Bbe7 Nd1 Qd6+ Qg3 Rc5 Nb2 Rc4 Rg4 Rc5 Rb5 Kc3 Re4 Rc4 Nf4 Rc5 Qg5 Rc4 Rc5 Kb4 Ree5 Rc3 Rf5 Bb5 Rc4+ Ka5 Rfc5 Qc6 Rb4 Qf6 Rcc4 Qd6 Qf6 Bbc6 Rb3 Bd5 Qh4 Bdc6 Qg5+
3B1Q1K/NPR1q3/n2b4/kp2BP2/1p3QB1/N1p2bB1/4pP1B/b3R1nR w - - 0 1 illegal: Other
B7/3KNk2/P1p1r2Q/r1bN1NB1/bQ1pqN1P/P7/p2p4/1qRRBN2 w - - 0 1 illegal: Other
r2q1Br1/B1QK3B/Q4qR1/R6P/1bqBn3/1b1n3Q/4PbNP/N1Bk3n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 a5 Kf5 g5 b4 g4 d4 a4 d6 f6 d5 a3 e6+ Ke8 d7+ Ke7 b6 Kd6 e7 c4 e8Q c3 b5 Kc5 Ke6 Kc4 b7 a2 d6 c2 b6 Kb3 Nf3 f5 Na3 f4 Rg1 g3 Nh4 g2 Qg6 Na6 b8B f3 b7 f2 Ba7 Kc3 b8Q Nb4 Qc7+ Kb3 Qd4 Nf6 Qe3+ Nd3 Qh3 Rg8 Qh6 Bb7 Qg6 Qb8 d8B Be7 d7 Bb4 Be7 Ne4 d8B Bd5+ Kd7 Bc4 Bf8 Bf7 Bch6 c1Q Qa6 Qc4 Nc2 Kc3 Bhg7+ Kd2 Bgd4 Bd5 B8f6 Bf7 Bb2 Bd5 Bc1+ Kd1 Bfd4 Bf7 Rh1 g1B Bg2 f1N Bf3 Nfg3 Ng2 Bd5 Bg4 Bf7 Bf5 Bd5 Bh7 Bf7 Nce1 Bf2 Rg1 Nh1 Nc2+ Ne1 Rb1 a1Q Rb2 Bd5 Ra2 Qac3 Ra1 Qf3 Ra5 Qf6 Nf4 Bf7 Rg6 Nd3 Ng2 Qcb5+ Qcc6 Bb3 Na1 Qc4 Qc7 Qbd8+
2b2Q2/3b3k/5n1r/1PN1n3/BbP1NBQR/qNN1q1R1/2q1P1QN/2nr1K2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 h4 d5 b4 a5 c4 f5 c6 Kf7 c7 g5 b6 Kg7 b7 d4 h6+ Kg6 h7 g4 e6 d3 h5+ Kg7 e7 a4 e8N+ Kf7 h6 Kg6 Nf3 f4 Nd4 f3 Nd6 a3 Nc3 a2 Nb3 g3 Bg2 d2+ Kf1 f2 Nde4 Ra3 Rh4 Bd7 c8Q Nc6 b8N Qe7 Na6 Nf6 Nac5 Ne5 Qe1 d1Q Bf4 Qc2 b5 Rg8 h8Q Ra6 h7 Rg7 Rd1 a1N Rd3 Rd6 Rf3 Rd1 Qg8 Qd6 Qb7 Be7 Qf8 Qa6 Qc6 Qa3 Qd5 Bd6 Qd4 Re7 Bh1 Re6 h8N+ Kf5 Nf7 Kg6 Nh6 Kh7 Nbd2 Nb3 Ng4+ Kg6 Re3 Nc1 Nh2 Be7 Bf3 Rd6 Bh5+ Kh7 Ndb3 Ra6 Qd5 Bd6 Qe6 Be7 Qg4 Bc8 Kg2 f1B+ Kg1 g2 Qf2 Re6 Rg3 Bd7 N5a4 Bb4 Nac5 Ng8 Bf7+ Rh6 Qff3 Nf6 Kf2 Rd4 Ke1 g1Q Qg2 Qe3 Be6 Rd6 Bf5+ Ng6 Qg1 Bh3 Qg2 Bc8 Kf1 Rd4 Ned2 Rd6 Bd3 Rd4 Nde4 Ne5 Rf3 Qca2 Bc2 Rd5 Rg3 Rd2 Qg5 Bhd7 Qg4 Q2b2 Na5 Qba2 Ba4 Qc2 Nab3 Rd1+
K5Q1/2P5/P2RQP1r/4n1N1/2B1Rq2/Nn2QbB1/br2qb2/qQQR2nk w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 b5 Kd5 g5 f4 e5 c4 e4 h4 b4 a4 e3 h6 g4 h7 b3 h5 b2 h6 g3 c6 d6 c5 e2 c7 e1Q c6 g2 a6 Qe2 a7 Qde8 a5 Qf2 a6 Nd7 Ra4 Rb8 a8Q Qg6 Nf3 g1N Qa7 Qgg2 Re4 Ra8 Bc4 Rb8 Ng5 Nc5 Na3 Nb3 Qe3 Bb7 c8Q b1B Bd2 Qg4 Be1 Qfe2 Bg3 Ba2 Qdc1 Be7 Qe8 Bd8 Qb1 Bb6 Qbc1 Ba8 Qc8 Rb7 c7 Bd4 Kc6 d5 Qb8 Bb6 Qc8 d4 Qb1 d3 Qec1 Nf3 Rd1 Bf2 Qe3 d2 Qd7 Ra7+ Kb6 Ne7 Qc1 Rf8 h8R Ng1 h7 Ng6 Qd3 Re8 Qdb1 Rb7+ Kc6 Re7 Rd8 Re6+ Rd6 Qgf3 Re1 d1Q h8Q+ Ke7 Qh1 Kf6 Qh3 Qd4 Rd1 Qa1 Kd7 Ne5+ Kc8 Nd4 Qg4 Rb2 Qh3 Nb3 Kb8 Kg7 f6+ Kg6 Qf5+ Kh5 f7 Rh6 f8Q Bc6 Qg6+ Kg4 f5+ Qf4 Qe6 Bb7 Qfg8 Bd5 Nh7+ Kh3 f6+ Kg2 Ng5 Kh1 Ka7 Bc6 Kb8 Be8 Kb7 Bh5 Ka8 Bf3
1rn3k1/n1P1R2r/3RK1b1/4n2R/P2N1RN1/1nQPQ3/1b3R2/2nqBNrB w - - 0 1 illegal: No proof kernel
4n1bN/2B1BN1K/N2Q4/BbBBRPq1/2n2b2/2P1P3/rr3n2/r2kr1RQ w - - 0 1 illegal: No possible last move
b1K3qR/R1R4r/2r2RQr/PBP1Q3/n4PNk/6nB/1nb2B1R/1Nb1n3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 b5 Kd5 g5 f4 e5 c4 e4 h4 b4 a4 e3 h6 g4 h7 b3 h5 b2 h6 g3 c6 d6 a6 g2 a7 e2 a5 e1N c7 Nd7 Kc6 d5 Qh5 d4 Be3 d3 Nf3 g1R Rh2 d2 Bf2 d1N Ne5 Rg6 Ng4+ Kf7+ f6 Nc5 Ra3 Na4 Rc3 Ba3 Qe5 Be6 Kb7 Rc8 a8R Ne7 Ra7 Qg8 Bd3 Rg7 Qe4 Bd7 Qg6+ Ke6 Bf1 Nf5 Rc2 Ng3 f7+ Ke7 f8R Bc6+ Ka6 Ba8 Rf6 Bb4 Be2 Bd2 Rc3 Bc1 Bd3 Rd8 c8B+ Rd7 Bf1 Rc7 Bh3 Rf7 Bd7 Rc8 Bb5+ Kf8 Rd7 Rc6+ Ka7 Ke8 Kb8 Kf8 Ra7 Ke8 Nd2 b1B Rc2 Kf8 Rc3 Bc2 Nb1 Ra6 Kc8 Ndb2 Re3 Rb6 Ree7 Rc6+ Rec7 Ke8 Qg5 Rd7 c5 Ke7+ Rf8+ Ke6 Qg7 Rf7 Qg6+ Rf6 Qe8+ Kf5 Ne5+ Qg4 Qf7 Rg8 h8Q Rg5 h7 Rh5 Qhg7 Rh6 h8R Rh7 Qe8 Ke4+ Qe6 Rfh6 Qe7 Qg8 Qg6+ Nf5 Ng4+ Kf3 Be3 Kg3 Qe5 Kh4 Bd4 Qb3 Rf6 Ng3 Bf2 Qg8+
B1N3N1/2bbN3/1N2Pqbr/2Q1P2k/Qn3r2/P2N1RQr/3nRB2/1n2K2b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 h4 g5 d4 c5 e4 f5 e6 b5 e5 c4 a3 g4 a6 c3 d6 g3 a7 c2 d5 f4 d7+ Ke7 h6 b4 h5 g2 h7 f3 h6 b3 Rh3 b2 Ne2 g1N Nbc3 b1B Ne4 Bg7 d6+ Kf8 Bg2 Na6 Ra2 Bb7 Nf6 Bd5 Be3 c1R Nf4 Ne7 Bf2 Rc3 Ng8 Nb4 Re2 Bf6 Qa4 Bg6 Nd3 Bb7 Rg3 Ned5 Rh3 Rac8 a8N R8c4 Nb6 Rf4 Bh1 Qe7 d8N Bc6 Nf7 Bd7 Rg3 Rb3 Rh3 Nc3 Bg2 Nb1 Rg3 Bc6 d7 Bh4 d8N Qf6 Nd6 Bd7 Ndc8 Bg5 Be3 Rc3 Nc6 f2+ Kd1 f1B Ke1 Bh4 N6e7 Rb3 Bd5 Bg2 Bf2 Bh1 Ba8 Nf3+ Kd1 Nfd2 Ke1 Rc3 Rf3 Qf7 Nf5 Bd8 Nfe7 Bc7 Nf6 Rg8 h8Q Qg7 Qh7 Rh8 Nfg8 Qf6 Qg7+ Ke8 h7 Rb3 Qh6 Rc3 Qg5 Kf8 Qg4 Kg7 Qg3 Qh4 Nf6 Kh6 Nfg8+ Kh5 Nh6 Rd8 h8Q Qf6 Qg7 Rg8 Qf8 Rh8 Nhg8 Rh6 Nf5 Rcc4 Qc5 Rh4 Nfe7 Rcf4 Qg1 Rh2 Qg3 Rh3
b3B1K1/b3k1NP/2rrN2B/BnQQ1r1n/1R2b2R/4n3/1P2Pq2/1B1n1QB1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 f5 Kg3 g5 d4 a5 h4 c5 h6 g4 Kf4 a4 d6 a3 b6 g3 e6 c4 Ke5 c3 d7+ Ke7 b7 g2 h5 c2 d5 a2 h7 f4 h6 f3 Na3 f2 Rh4 Ra4 Nf3 g1R Bg2 f1B Nd4 Rh1 Nc4 Rh3 Nd6 Rb4 Be4 Rd3 Ne8 Ra4 Ng7 Bg2 Qf1 Na6 b8B Ra5 Ba7 Nf6 Kf5 Rg8 Kg6 Qb6 h8Q Bb7 h7 Nh5 Bh6 c1N Bf5 Be4 d8B+ Kd6 Kf7 Ba8 e7 Nc7 e8B Nb5 Nde6 Qf2 Bdb6 Ra6 Bd8 Rc6 Ba5 Rd4 B7b6 Nd3 Rc1 a1N Rc4 Nc2 Rb4 Ne3 Bc5+ Ke5 d6 Be7 d7 Rdd6 d8Q Rf8+ Kg6 Rf7 Qf8 Bg5 Qd7 Bd8 Qfe7 Bb6 Qdd8 Ba7 Bcb6 Rd5 Qc5 Rd7 Qg5 Rd8 Kf7 Rdd6 Qc2 Rdc5 Kg8 Rcd5 Qgg2 Kf6 Qc5 Ke7 Bfg6 Rf5 Qgh1 Nc1 Qhg2 Na2 Qg5+ Rf6 Qgd5 Nac3 Bf5 Bg2 Bb1 Ncd1 Qc3 Be4 Bd4 Nc2 Qcc5 Rf5 Bde3 Qf4 Bf2 Nce3 Bg1 Qf2
2RQ1R2/2b1P2n/rq1N1Qn1/2b1r2Q/B3nK1Q/r1n1Pb1N/2B1P1kB/1Q6 w - - 0 1 illegal: No proof kernel
q3QNr1/b3r3/7n/3n2R1/1K4BB/RP1r1qP1/PrbR1Qr1/1kNBR2R w - - 0 1 illegal: No proof kernel
nk3N1b/2q5/1rQ3Bq/N1PqrN2/1QNP2RR/2q5/n2RPK1q/BN3b2 w - - 0 1 illegal: No proof kernel
N3NK2/3B1qB1/3n3P/b2PQ3/R1qBPqn1/N2bqRBr/4kr1q/1BQ5 w - - 0 1 illegal: No possible last move
BKNbq2k/B5Nb/1NPR3r/2R3Nr/3qrr2/3n3P/Qn3r1P/1RQN4 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 h5 e4 c5 dxc5 h4 exf5 h3 gxh3 Rh6 Na3 Rh7 Nb1 Rh8 Kd2 Kf7 Kd3 e5 Kc4 g5 Kd5 Kg7 b4 a5 f4 e4 c4 g4 b6 g3 f6+ Kh7 f7 g2 b5 e3 b7 d6 b6 e2 c6 e1R c7 a4 f5 a3 c5 a2 f6 Ra4 Nf3 g1Q Be3 Qg3 Bg2 Qf4 Qc1 Nc6 b8R Be7 f8Q Nh6 b7 Nf7 Nc3 Nfe5 f7 Qe8 Rb1 a1R Nd1 Bf5 Rc8 Nd3 b8N Bd8 Nd7 R1a2 Nb6 Nce5 Bg1 Rf2 Qg8+ Kh6 f8N Bh7 Qf7 Nc4 Ne6 Re4 Ng7 Ncb2 Ng5 Qf6 Qe6 Ref4 Qe2 Rac4 Qec2 Rce4 Qb3 Qc3 Qa2 Kg6 Rb8 Kh6 c8N Qd2 Rb7 Qb4 Rd7 Qd4+ Kc6 d5 Kb7 Kg6 N5e6 Kf6 Rd6 Kf7 Kb8 Kg8 c6 Bg6 Ng5 Rh6 Bf1 Kh8 Be2 Bh7 Bg4 Rd2 Be3 Rdf2 Re1 Rh5 Re2 Rh6 Rc2 R4f3 Nd7 Qa4 Ne7 d4 Nf6 Nf4 Nd7 Ree6 Nc3 Rh5 Bf5 Reh6 Bd3 Qc4 Nc8 Qb4+ Bb5 d3 Ba7 d2 Ndb6 d1R Ba6 Nfd3 Bb7 Qd4 Ba8 Re1 Nd1 Rf4 Rc5 Ree4
6qK/2qR4/b1r1rRQb/2n1R3/B1NPP1n1/2RNB2Q/b2P2rb/R5Nk w - - 0 1 legal: proof: g4 d5 f4 b5 a4 h5 gxh5 e5 fxe5 d4 axb5 d3 cxd3 Rh6 d4 Rh8 Kf2 Kd7 Kg3 Ke6 Kg4 Kd5+ e6 Ke4 b4 a5 h4 g5 h6 c5 Kh5 f5 Kg6 f4 b6 g4 h5 f3 e7 a4 e8R+ Be6 h7 g3 h6 f2 b5 c4 b7 c3 b6 g2 Rh3 c2 Rc3 Qe7 Ba3 c1B Bd6 a3 Bf4 a2 Be3 Qc7 Na3 Nd7 b8R Ngf6 b7 Ng4 Nc4 Ra6 Rbd8 Rc6 b8N Nc5 Na6 Ba3 Nb4 Bd6 Rf8 Bh2 Rf6 Re8 h8Q Bd5 h7 Ree6 Nd3 Bb4 Rb1 a1Q Qc2 Qa2 Rd7 Qaa7 Kg7 Qab7 Na3 Ba2 Nc4 Qa7 Ra1 Ba3 Nf3 g1R Bh3 Rg2 Ng1 f1B Qc8 Bf4 h8R Bh6+ Kh7 Bb4 Re8 Ba5 Kh8 Qab7 Rh7 Qf7 Re7 Bc7 Rg7 Bh2 Rd7 Qc7 Rg5 Ne5 Bg4 Qe7 Bh5 Ng4 Be8 Qf7 Rdd5 Rcd6 Ba4 Rc6 Rd7 Nb7 Bf4 Ra6 Rdd5 Re7 Na3 Ne5 Qh3 Rg3 Rd7 Nc5 e3 Ree6 Ne1+ Bd3 Qd1 Rac6 Qdh5 Ba6 Nd3 Ng4 Nc4 Nb7 Ne2 Kf3 e4 Nc5 Re5 Nb3 Qg6 Nc5 Qhh5 Kg2 Ng1 Kh1 Qh3 Rg2 Be3 Qg8+
N1qB2b1/2NBn3/N1N1Q2R/3Q2q1/Pq2r3/k1K1R1nn/1r1R1P1P/b2Nn3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kd7 d4 Kd6 Kd2 c5 h6 e5 a6 g5 f6 b5 h7 g4 a7 c4 f7 b4 Nc3 g3 Nge2 g2 Qe1 g1N Ng3 b3 Ra3 b2 Nd1 b1Q Re3 e4 Bh3 Nc6 Bd7 Rb8 a8N Bg7 f8N Nce7 Kc3 Nf5 Ne6 Nge7 Nec7 Re8 h8R Nh3 Rh6+ Bf6 Qe2 Rb2 Re1 Ba6 Rd3 e3 Rd2 Qc8 Qg4 e2 Qg8 Ng6 Ne4+ Ke7 Nc5 Kd6 Qf7 Re4 Qe8 Bb7 N5a6 Nge7 Qg6 Ng3 Qg8 Ra2 Qg4 Qb6 Ba3+ Qc5 Bb4 Bc6 Ba5 Rb2 Be6 Bh8 Rc2 Bb5 Kd2 Nc6 Ne8+ Ke7 Bf5 Ra2 d6+ Kf8 d7 Ke7 d5 Ba1 d8N Rb2 Nf6 Kd6 Ne8+ Ke5 d6 Kd5 d7 Ne7 Nc6 c3+ Kc1 Kc4 d8Q Kb3 Qd6 Re3 Bd7 Ka3 Bd8 Re4 Nec7 Bc4 Qd2 Be6 Qd5 Bg8 Qge6 Qb6 Rd2 c2 Rd4 Qbb7 Kd2 c1Q+ Kd3 Qg5 Kc3 Qbb8 Rd2 Ngf5 Rg1 e1N Rg3 Qb6 Rgd3 Ng3 Re3 Qb4+
2Q3R1/Rb5q/1nNBBP2/2r1Q3/n1BP2Pr/1N3K1k/R1Rr1br1/3qR1n1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 b4 c5 f4 h5 g6 e5 g7 a5 d6 h4 f6 Ke6 f7 Kf5 d7 Kg4 g3 a4 b6 a3 b5 a2 f5 e4 f6 e3 b7 h3 b6 h2 d3 c4 Ba3 c3 Nf3 c2 Qe1 Na6 b8Q Ne7 g8B Nd5 b7 Nb6 Nbd2 Bc5 f8R Rh4 Nd4 c1R N2b3 Qe7 d8R Qh7 Rg1 h1N Nc6 Rd1 Rg2 Kh3 g4 Ng3+ Kf3 e2 Rde8 Rd2 Be6 Bf2 d4 Nc5 Rf7 Nca4 Bd6 Ra5 Rc1 a1R Rc2 Rb1 Qc1 e1Q Bfc4 Qg1 Qc7 Rb2 b8R Re5 Ree7 Ba6 Rg8 Bb7 Qc8 Rd5 Qe1 Rc5 Qe5 Ne2 Rfg7 Qd1 Ree8 Ba6 Ra7 Ra2 Rg1 Bb7 Re1 Ra1 Ra2 Rb1 Re7 Rbb2 Rc7 Rb1 Bd3 Qc2 Rc1 Rd5 Nb4 Ra1 Rc4 Rc5+ Nc6 Rb1 Rf1 Re1 Rg1 Qd1 Rcc2 Rf1 Bdc4 Re1 Rg2 Rh1 Rg1 Rh2 Rf1 Rg2 Re1 Ng1+
b1R1B2B/7K/N2NPr1b/r5BQ/2rQQ3/qkn2q2/1P1BRnPr/2B4q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 a5 e4 h5 d4 c5 d6 Ke6 d5+ Kf7 d7 a4 b6 c4 e6+ Ke7 b7 Kd6 e7 Kc5 e8Q Kb4 d6 h4 e5 c3 e6 h3 g6 h2 g7 a3 Qd4+ Kb3 Nh3 c2 Nc3 a2 Ne4 Ra3 Nhf2 Nf6 Kg5 f4 Kg6 f3 g8Q Nh7 Nd3 f2 Nb4 Qb6 d8B Bh6 d7 Qc6 Bb5 f1R Bf6 Ra5 d8B Na6 b8B Bb7 Bbf4 Nc7 Bfd2 Nd5 Nd6 Nc3 Na6 Ng5 Qh7 Nh3 Bg7 Rf2 B8g5 Qf3 Re1 h1Q Re2 Ba8 Qf7 Rf1 Be8 Nf2 Rb1 a1Q Qb7+ Nb5 Qbe4 Nc3 Be5 Qa2 Qf7 Rh7 Bh8 Qa3 Ra1 Bg7 Qff5 Rh2 Qf7 Bh6 Kh7 Bf8+ Qh5 Bg7 Bde3 Bh6 Bcd2 c1R Rb1 Rc2 Rc1 Na4 Bef4 Rc8 Rc5 Nc3 Bc1 Rc6 Bfd2 Rc8 Re5 Rc4 Rc5 Qg3 Rc7 Qf3 Rc8 Qf7+ Bg7 Ng4 Rc5 Rf5 Rc8 Nf2 Qhg4 Qh5 Bh8 Rf6 Qh4 Qg4 Qh5 Qf3
b2B1q1N/1r1q1nQ1/4Pr1n/1Q1nN3/N1rN1P1b/1R1N1B1K/4RPrB/k7 w - - 0 1 illegal: No proof kernel
8/2RB1k2/1P1rb1nQ/RqR3R1/5n1B/1q1rN1Pq/B5QP/NK2brqR w - - 0 1 illegal: No possible last move
2r4k/1N1R1qNP/bBn3b1/1R2Pr2/2B1N1QP/1K2n3/1NQQ3r/bq3r1N w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 g5 b4 f5 d4 Kf7 Kd2 Kg7 Kc2 a5 e4 c5 b6 c4 e6 g4 h6+ Kh7 d6 a4 e5 g3 b5 g2 d5 f4 d7 a3 b7 f3 e7 f2 e8N a2 b6 c3 d6 Ra4 Nh3 g1Q Qg4 Na6 b8Q Nc5 b7 Qg5 d8Q Na6 d7 Bb4 Kb3 c2 Na3 Qg6 Qbc7 Bc3 b8N Rf4 Be3 c1R Rb1 a1R Bc4 f1B Ng7 Bd3 Bb6 Rcf1 Nf2 Nb4 Na6 Nd5 Nc5 Ra2 Nce4 Ba1 Rh3 Qe8 Nh1 Rf5 Qdg5 Raf2 d8N Nge7 Qd2 Ne3 Nb7 Nc6 Rh2 Rhf8 Rg2 Kh8 h7 Qf7 Rg3 Ng2 Rb2 Bb1 Rd3 Ne3 Rd7 Rh2 Qd8 Rg5 Qc2 Rgf5 Qdg5 Nd5 Qgd2 Ne3 Nb5 Re8 Nbc3 Rg8 Nd1 Rf8 Na5 Ba6 Nb7 Re8 Ra2 Rc8 Nb2 Qf2 Ra5 Qe1 Qcd1 Bd3 Q1c2 Qb1 Rb5 R5f3 Nec5 Bg6 Ne4 Rf5
q3q3/3RBPnN/2NQ2bN/3PK3/b1NQ1r1P/1q4kB/1n1N2qb/Br4R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 g5 h4 e5 d4 b5 f4 c5 a4 g4 a6 g3 h6 g2 f6 b4 f7 c4 a5 b3 f5 b2 f6 c3 a7 c2 h7 Bh6 f8B+ Ne7 a6 Nc6 Nd2 b1B Bb2 Rb8 a8N Nb4 a7 Bf4 Nb6 Nd3 a8Q c1Q Qa7 Bh2 Ngf3 g1Q Ng5 Qc4 Bh3 Bd7 Qa6 Qg3 Rg1 Ba4 Bc3 Rg8 h8N Qb3 Nh7 Nb2+ Qd3 Rg5 Ra2 Rf5 Nf7+ Kc7 Nh6 Kd6 f7 Qg2+ Ke3 e4 Nbc4+ Kd7 d6 Ke6 d7 Qc8 Ng4 Rf4 d8N+ Kf5 Nc6 Qa6 d5 Qa8 Kd4 Rb5 Qg3 e3+ Ne4 e2 Qdd3 Ng8 Be7 e1Q Qde3 Nh6 Qd3 Kg6 Ke5 Kh5 Qd4 Nf5 Nh6 Ng7 Ra3 Qef2 Ned2 Bg6 Raa1 Qff3 Rac1 Qg4 Ra1 Qd7 Ra2 Rb4 Raa1 Qde8 Ra3 Bb5 Ra7 Ba4 Rd7 Nd1 Ba1 Nb2 Qgc3 Rb5 Qb4 Rb7 Qd6 Rb5 Be6 Rb7 Nf5 Kg4 Nh6+ Kg3 Bg4 Rb5 Bh3 Rc5 Nb6 Rc1 Nbc4 Rb1
1b2rq1n/1P4qN/RP2b3/3KN1R1/1q2Q2R/BP3B1q/2rR2Rn/k1b1B1Q1 w - - 0 1 illegal: No proof kernel
1BN1nK2/3b4/1Pq1N2r/1rP1BRbk/3B1Q2/1Rr2rbB/P1bB2QR/7n w - - 0 1 illegal: No proof kernel
QB1R1R2/bPr1Prb1/q1B1RQP1/1N2N1r1/3RrK2/b3R3/n4nN1/1b5k w - - 0 1 illegal: No possible last move
n3b1q1/B1Q1rQBn/Q3P2b/2NRPP2/1nN4r/1p2B2b/5R2/B1K2Brk w - - 0 1 illegal: No proof kernel
1bQ1bN1k/R1B1qr2/1P1pr3/7B/Qn3n2/P2B2PQ/nRB1N1br/1B4K1 w - - 0 1 illegal: No proof kernel
1B5R/2PbQNN1/n6N/1b1P3P/r2Rq1Q1/bNB1r3/2KnpNnk/1r3B2 w - - 0 1 illegal: No proof kernel
3Nr3/p3PBnR/n4B2/2Q2n2/B1RP2QQ/3kPbrK/q2B1B1N/b3b2r w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 h5 d4 f5 b4 c5 d6 Ke6 d7 Kd5 g6 Kc4 g7 f4+ Kh3 f3 g4 h4 b6 f2 e3+ Kd5 g5 Ke4 g6 c4 b5 c3 e6 c2 b7 Qf6 d8B Nc6 b8Q Qf4 b6 Qe5 b7 Qh5 Qd6 Qd5 b8B Qc5 Qh5 Qb4 Ra4 Qa3 Bd2 c1B Bf6 Nh6 g8B Nb4 g7 Nf5 Bb5 f1N Qc5 Qa2 Ne2 Bb7 Bg3 Na6 Bf7 Re8 g8Q Ng7 Nf4 Bb2 Rc4 Ba1 Bf2 Ng3 Ba4 N3f5 Qh6 Bd6 e7 Ba8 Ne6 Kd3 Nd8 Bg3 Qf4 Bf3 Qh7 Rhg8 Qg4 Bb8 Ba5 Bg3 Nd2 Rgf8 Nf1 Rg8 Bg1 Be1 Bd2 Rgf8 Bf2 Rg8 Kh2 h3 Qhh4 Nd6 Kg3 h2 Kh3 Ndf5 Rg1 h1R+ Nh2 Ne6 Rg3 Be2 Rf3 Rg6 Rf4 Bf3 Re4 Neg7 Re5 Ng3 Rh5 N3f5 Rh7 Rg5 Qgh5 Rgg1 Q5g4 Rg3+
Qbbk1B1N/B7/3r3Q/qn3q2/q1RPR3/1NPB4/npQnrP1B/K6B w - - 0 1 illegal: No possible last move
3r1QN1/2B1b3/1N1qb3/1nN2r1P/B1P3P1/2bR1Q2/1kNq2p1/1rRnRN1K w - - 0 1 illegal: No possible last move, all moves rejected
2r1q1Qn/1R1b2Q1/k2B1qBB/1nn1QP2/1P2KP2/6Qb/1b3Qp1/4NNrR w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kd3 a5 b4 d5 c4 Kd7 h6 Kc7 b6+ Kb7 c6+ Ka6 b7 e5 h7 d4 c7 a4 c5 a3 c6 g4 Qf3 a2 Qg3 Qf6 Bh6 Nd7 b8B Bg7 Nd2 Ne7 Ke4+ d3 Ngf3 Ng6 Ne1 Rg8 f4 Nh8 h4 Nb6 h5 Na4 Rd1 a1N Be2 Nc2 Nf1 Nd4 Qf2 Bd7 c8Q+ Kb6 c7 d2 Qf8 g3 c8Q g2 Ra1 d1B Qc3 Ra5 Qf7 Rc8 Qcg3 Ra8 Bf3 Ka6 Bd6 Nb5 Qg8 Rc1 Ra2 Rac8 Rc2 Ra1 Rc7 Rc1 Rb7 Nc5+ Kd5 e4 Bg4 Nf7 h8Q e3 Qhh7 Bh8 Qhg7 Rb1 Be2 Rc1 Bc4 Bg4 Bb3 e2 Ba4 Nd3 Ke4 Bh3 Bb3 Qe7+ Qe5 Qf6 Ba2 Bg7 Be6 Nh8 Bf7 Rd1 Bg6 Rb1 Bg5 Rbc1 h6 Ra1 h7 Nc5+ Ke3 Rb1 Bh6 Rd1 Nc2 e1Q+ Kf3 Nf7 h8Q Rc1 Qhh7 Bh8 Qhg7 Rd1 Qb2 Qe8 Qe5 Rc1 Nh2 Rg1 Nf1 Be6 Ne1 Bd7 Q7f8 Bg7 Ke3 Nh8 Qff7 Ne6 Ke4 Nc5+ Kd5 Bg4 Qec3 Qfe7 Qcd4 Be5 Qfg7 Qf6 Qde3 Bb2 Qe5 Na4 Ke4 Nc5+ Ke3 Bh3 Kf3 Ne6 Ke4 Nc5+
q1k1bB1K/Q4Q2/nr2q1R1/2pB3R/7b/P2PQr1N/n2Q2QP/r1NR2b1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 b5 Ke4 c5 Ke5 g5 f4 b4 h6 e6 d6 b3 a3 g4 a6 g3 d3 g2 f6 b2 f7 Bb7 h7 Qh4 a7 Qh3 f5 Bg7+ f6 Kd8 f8Q+ Kd7 Qf7+ Kd8 d7 Bc6 Nc3 b1R Bh6 Ne7 Nce2 Qg4 Nc1 Qg6 Nh3 g1B Bg2 Nd5 Qd2 Rf8 h8R Nc3 Bd5 Na6 Qg2 Rc8 a8Q Rcb8 Qa7 Na2 Rh7 Bh8 Bg7 R8b7 Rh5 R7b6 Qd2 Bb5 Qg8 Qe8 f7 Bc6 Kf6 e5 Kg6 e4 Kh7 e3 Bh6 e2 Qg2 Rg8 f8Q e1Q Qf7 Bf6 Bf8 Rg3 Qe3 Bg5 Kh8 Rf3 Qed2 Q1e6 Qe3 Bf2 Rg1 Bgh4 Rd1 Bg1 Qed2 R1b4 Rb1 Rc4 Rb4 Rc2 Rg4 Rcb2 Rg6 Rb1 Qff4 Ra1 Qfe3 Nb8 Qaa5 Kc7 d8Q+ Kb7 Qf6 Na6 Qe7+ Kc8 Qf7 Bb5 Qa4 Q8c6 Qaa5 Qa8 Qa4 Be8 Qad7+ Kb8 Qa7+ Kc8
1rQK2RB/4Q3/4rq2/1PpB1bn1/1b3B2/RPQPqbn1/3NBk2/rN3B2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 a5 Kd4 c5+ Ke5 h5 f4 e6 g4 h4 g6+ Kg7 d6 Kh6 g5+ Kg7 d7 h3 b3 a4 Nf3 h2 Rg1 h1B Qc2 a3 Qc3 Ne7 Kd6+ e5 d3 a2 Nfd2 Qe8 Kc7 Nbc6 d8B Bf3 Rg3 Nd4 f6+ Kg8 g7 Kf7 g8B+ Kg6 f7 Kh5 f5 Kh4 f6 e4 g6 e3 g7 e2 Bh7 e1R g8B Bg7 f8Q Nef5 Bd5 Qe3 f7+ Bf6 Rg5 Ng3 Bhe4 Bf5 Qe7 Ne6+ Kd7 Ra6 Rg8 Ng5+ Kc7 Bd4 f8Q Re6 Qfe8 Bf6 Q8d7 Rd1 Qc8 Be5+ Kd7 Bc7 Bb2 Ba5 Bc7 Bb4 Kd8 Re1 Be2 Kh3 Bf4 Kg2 Bf1+ Kf2 Be2 B3g4 Bg2 Bf3 Na3 Rg1 Bgf1 Rgh1 Rc1 a1Q Nab1 Rb6 Rc2 R8h6 Rc1 Rhe6 Rc2 Qa6 Ba1 Rb8 Ra2 Re5 Ra3 Qf6 Bh3 Rc1 Bhf1 Re6 Qc4 Qf7 Bh8 Qf6 Qd4 Rc2 Qe5 Ra2 Qc3 Ra1
3Qb1kn/1Bn5/B2NrbB1/BpBQ2rP/PP5R/1N4r1/1q4b1/1KN2q1R w - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 h5 g4 a4 gxh5 a3 Qa4+ Qd7 Qxa3 Qd6 Qa7 Qd8 Kd1 f5 Kc2 Kf7 a4 g5 d4 c5 h4 c4 b4 g4 e4 c3 e6+ Kg7 h6+ Kh7 d6 g3 h5 f4 e7 b6 e8B+ Be7 e5 g2 e6 f3 d5 f2 d7 Qc7 d8Q Nc6 d6 Rb8 d7 Ne5 Be3 Ng6 Ne2 g1R Nc1 Qf4 Bc5 Rg3 Qb7 Nf6 Rh4 Kg8 Ba6 f1B Nd2 b5 Ndb3 Nd5 Kb1 Bf6 e7 Bg2 Qa8 Qf1 h7+ Kg7 Qb7 Rg8 h8N Nc7 Nf7 Nh8 Qd5 Rb6 Nd6 Rg5 Bg6 c2+ Ka2 Rg3 e8B Kf8 Be4 R8g5 B8g6+ Kg7 Qe8 Rc6 d8B Be6 Qd7+ Bf7 Qc8 Be8 Qb8 Ne6 Ba5 Kg8 Qd8 Rb6 Qe5 Nc7 Beb7 Rc6 Qd5+ Kf8 Ne2 c1Q Rb1 Qc3 Nec1 Rb6 Ra1 Kg7 Kb1 Qd4 Ne4 Re6 Nd6 Kg8 Ra2 Bf3 Rah2 Bg2 Rh1 Qb2#
6r1/q2nb1n1/3r1P1b/1NRQNP2/KNN1QNBk/B6p/2RRP2n/qb6 w - - 0 1 illegal: No proof kernel
1b1k4/3N3N/4QP2/K1R2pP1/N1r1B1n1/qQbNbP2/1Nr1RBnr/1Q3q2 w - - 0 1 illegal: No extended proof kernel
b2k1bqq/1b1nrR2/1R1QPB2/1nr3PQ/1rR1Np2/1P1K4/2BB2R1/1R2N3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 a5 e4 f5 Ke2 h5 d4 c5 b6 c4 b3 a4 b7 c3 d6 f4 e6 h4 g6 h3 d5 a3 d7+ Ke7 e5 c2 g7 h2 Bd2 c1Q Kd3 a2 Nc3 Nf6 g8R Ne4 Nf3 Rh4 Rb1 a1R Ne1 Nd6 Ne4 Qa5 d8R Bg7 Rdf8 Na6 b8R Rh7 Rb6 Ra4 g5 Rb4 Rg1 h1B Rg2 Qaa3 Rf5 Bf8 Rf7+ Ke8 e7 Nb5 d6 Bb7 Qh5 Kd7 e6+ Kc8 Be2 Qab2 Bd1 Nb8 Bc2 Qh8 d7+ Kc7 e8Q Ra5 d8B+ Kc8 Nc5 Nd7 Ne4 Qcb2 Qe7 Qbg7 Qd6 Qg6 Rf5 Re7 Rg7 Ba8 Rgf7 Qgg8 Re5 Re8 Bf6 Re7 Rc5+ Kd8 Rc4 Bb7 Rf2 Bf3 Rg2 Ba8 Nf2 Bfb7 Ne4 Na7 Qh4 Rc5 Qh5 Nb5
nk1r3q/2NR3q/4pPq1/1bN3nP/NQN1n2B/1NR2K2/Q1PR4/b2r3B w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 d5 h4 Kd7 b4 Kc7 f4 g5 b6+ Kb7 f6 a5 c6+ Ka6 c7 Kb7 h6 e6 f5 g4 b5 g3 h7 a4 f7 g2 h5 d4 f6 a3 Nf3 g1Q Nbd2 a2 Nb3 Ra4 Nfd2 d3+ Kf3 Rc4 Bg2 Bd7 c8N Rd4 Nc4 d2 Rh2 Rh4 Bh1 Bb4 f8Q Bc3 Qb4 Qd4 Qf1 d1N Bg5 Qc5 Rd2 Nf2 Rad1 Rd4 Bh4 Na6 Qe2 Ka8 b7+ Kb8 N8b6 a1Q Na4 Nh6 Qe1 Rg8 h8R Nf7 Qa3 Qdf8 Qa2 Nc7 Rh7 Qg7 Rd3 Rf8 R1d2 Qh8 Rg7 Bb2 Rc3 Na8 Qeb1 Qe7 Qe1 Ka7 b8N Rd8 Na6 Ne4 N6c5 Kb8 b6 Bb5 b7 Qc1 Rh7 Ba1 Rg7 Qa3 Qeb1 Qc1 Qbb2 Qg1 Qba3 Qd6 Qb4 Qc7 Rh7 Qg6 Rg7 Ka7 b8N R4d6 Nba6 Nfg5+ Kf4 Qcf7 Nc7 Kb8 Rh7 Qfg8 Rd7 Qg8h7 Ke3 Rd5 Ke2 Rf5 Ke3 Rf1 Ke2 Rd1 Ke3 Nf7 Kf3 Nfg5+
2Bn2qq/Q1b4n/NP1n1R1r/P1K5/R1RPRQ2/3qr3/Nkp3RB/1N5b w - - 0 1 illegal: No proof kernel
Q1bB1r2/Q2B3P/3n4/r3R1n1/1PRQq2k/nN2bP1r/NKp2q2/R3RR2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 Kf6 d4 c5 Kd2 a5 Kc2 e5 h6 g5 d6 a4 b6 e4 d5 e3 d7 a3 h7 a2 d6 c4 b7 c3 h5 g4 h6 Kg5 f6 g3 f7 g2 Bb5 Na6 b8Q Qe7 d8Q Bg7 f8R Be6 d7 Nc5 Qd4 Bh3 Ne2 g1Q Qa7 Nf6 Nd2 Ne8 Nb3 Ne6 f3 Rb8 Rf4 Qf2 Re1 Nd6 Qe8 Bg4 d8R Kh4 Bd7 Ng5 Qf8 Bf6 Re8 Be5 Re4 Bf4 Rf1 Qe6 Re5 Qd5 Bb2 Qe4+ Kc1 Bh3 Rc8 Bf5 Rc4 Re8 Qg8 Rf8 Qgd5 Bh3 Qda8 Bg4 Ba4 Bc8 Bd7 c2 Nc3 e2+ Qd2 e1N Qde3 Bh2 Qed4 Ng2 Re1 Bg1 Rf1 Rhg8 h8R Ne3 h7 Rg6 Rg8 Rh6 Rg6 Rh5 Rge6 Rh6 Rb1 a1R Na2 Rh5 Bc3 Rh6 Kb2 Rh5 Nac1 Ra5 Ra1 Kg3 Re7 Rh3 Na2 Kh4 Re8 Nd5 Be1 Nc3 Bd2 Nb1 Bf4 Qc6 Ree1 Na3 R8e5 Qe4 Be3 Ngf7 Bh6 Ng5 Bg7 Bh2 Bf6 Bf4 Bd8 Be3
4n1BN/1Br3P1/2Q2q1K/1RP1N1rQ/k2Bnpb1/1R1P2b1/B6q/b2N1B1n w - - 0 1 illegal: No proof kernel
1Q1K2nr/Qr2n1p1/3q4/rBNb2Pq/B2BP1b1/1PQ1QN1R/k1nQ4/3R4 w - - 0 1 illegal: No proof kernel
K2rQN1N/1bRP1Q2/nB1r4/2B5/5bkN/Ppqnn2N/2BR2P1/q4Nr1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kd3 e5 Kc4 h5 Kb5 c5 f4 e4 d4 b6 a6 e3 d6 c4 f6 Ke6 f5+ Kf7 d7 e2 d5 e1Q a7 c3 d6 h4 a3 h3 Be3 c2 Nd2 c1R Qf3 h2 Bd3 Qe2 Bc5 Qde7 d8B Rc2 d7 Qf1 Ra2 Rh7 Nh3 Bh6 g6+ Kf8 f7 Kg7 f8N Kf6 g7 Rc1 Ng6 Na6 Kc6 b5 Nh4 b4 Bb6 b3 Bc2 Qee1 Qf2 Ke5 f6 Bf4 f7 Nf6 f8N Nd5 g8N Ne3 Ne7 Rh6+ Neg6+ Kf6 Rg1 h1N Nh8 Qc4 Rb2 Qc3 Nf1 Ra1 Qf3 Nf2 Ra2 Rb8 a8Q Nd3 Qd5 Rh5 Qg8 Rd5 Qf7+ Ke5 Nd2 Qb1 Rc1 Qbb2 Nf1 Rb1 Rd1 Qa1 Rd2 Rd1 Rb2 Rd4 Rb1 Re1 Rc1 Rd5 Nh2 Rg1 Nf1 Rd6+ Kb5 Bb7 Bb4 Bh2 Bb1 Qcb2 Rc7 Qc3 Bc2 Bf4 B4c5 Re8 Qd8 Bc8 Ne6 Rd5 Kc6 Ke4 Qde7 Rd8 Qee8 Ke5 Ba5 Rd4 Kb6 Ke4 Ka7 Rd6 Bab6 Ke5 Ka8 Ke4 Qh7+ Ke5 Nf8+ Kf6 Nf2 Kg5 Nh3+ Kg4 Qhf7 Bb7+
1Rn2q2/RbbP4/bQ3R2/Q1pQq1r1/P6k/1BQQN3/1PKr1n2/1n2N1B1 w - - 0 1 illegal: No proof kernel
1RB1B1QB/Q1nP2P1/rB1b1rqN/2q3R1/b2NBP1q/1p6/1K3k1r/1nR5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 Kd6 Kc3 e5 f4 b5 g4 c5 a4 h5 g6 e4 f6 h4 f7 h3 g5 c4 g7 h2 a6 e3 a7 e2 g6 e1Q+ Nd2 b4+ Kb2 b3 a5 Rh5 a6 Qde8 Ne2 Re5 Nf3 Be6 Rg1 h1R Ng5 Rh6 Bh3 Be7 f8R Rh4 Nf7+ Kc7 d6+ Kc6 d7 Kd5 d8B Ke4 d5 Kf3 d6 Kf2 Bb6+ Rc5 Rg5 Nf6 g8Q Nd5 Nd4 Bd7 Nh6 Ba4 Bc8 Rc6 Qd3 Rh2 Qe3+ Kf1+ Bd2 Nc3 Rc1 Nb1 d7 Qf7 Re8 Rf6 Rf8 Rh4 Bc3 Bd6 Re8 Nc6 Rf8 Nb4 Rd8 Nd5 Re8 Rb8 a8B Nc7 Bd5 Ra8 a7 Qg7 Bf7 Rh2+ Rc2 Qf2 Rf8 Qh4 Be8 Rb8 a8B Qh7 Bc6 Ra8 Be4 Ra6 Ka1 Qf7 Bb2 c3 Rc1+ Qe1 Ba5 c2 Bb6 Qe6 Bc3 Qf5 Kb2 Qg4 Qh3+ Kf2 Qd3 Ra5 Qa6 Qh4 Qa7 Ra6 Nf3+ Qe3 Be5 Qc5 Nd4 Rf7 Bh8 Rf6 g7 Qc6 Rh1 c1Q+ Ka1 Q1c5 Kb2 Qc4 Rc1 Q4c5 Bf7 Rf5 Bb7 Be5 Rb8 Qg6 Bc8 Bd6 Be8 Rf6
1n1rQKQN/1BP1b2N/3r2pN/1R1Q4/4PB2/qQ3P2/b1n1q1Rn/k2qQ3 w - - 0 1 illegal: No proof kernel
1bRN2N1/1nP1Pn2/1Q1RQ2K/q1RP4/2r2Q1B/k2B2qp/r1R3bR/4b1q1 w - - 0 1 illegal: No proof kernel
Q3nNk1/nP1B4/4r3/b1BR1K2/R2bBn2/RqPbqPr1/BpB5/Q2N4 w - - 0 1 illegal: No proof kernel
1q1qR1N1/KPRqQB2/1B2n1QR/p3n2r/2RP2B1/r1P3k1/3bR1nN/5b2 w - - 0 1 illegal: No proof kernel
bBn1nb1k/R1R1QB2/5r2/5n2/1nQp2RB/q4Pr1/3b1PP1/KBBN1N2 w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 h4 c5 dxc5 f4 hxg5 f3 exf3 Bb7 Ne2 Ba6 Ng1 Bc8 Kd2 Kf7 Kc3 Kg7 b4 h5 Kb2 d5 c4 e5 g6 a5 c6 h4 b6 h3 c7 d4 b5 h2 b7 a4 c5 e4 c6 e3 b6 e2 Nd2 e1N Ne2 Be6 c8Q Bd5 c7 Qe7 Nc3 Rh3 Bd3 Rg3 Qe2 Na6 b8B Kh8 b7 Nc2 Nf1 Ncb4 Nd1 a3+ Kb1 Qc5 Qe7 a2+ Kb2 Bc6 Bb1 Qa5 Qce6 Bd5 c8R Nc7 Qc6 Ne8 Qc4 Ra6 Bbf4 Rd6 b8B Rf6 Rc7 Ba8 Bg5 Qc5 Bh4 Qa5 Qe3 Ne7 Qe1 Nc8 Qe3 Qf5 Qe7 Qd3 g7+ Kh7 g8B+ Kh8 Nd2 Qe3 Re1 h1N Bf7 Qd3 Nf1 Qe3 Bh7 Qd3 Re4 Qe3 Rb1 Qa3+ Ka1 Rg4 Qcc5 Ng3 Rb7 Na6 Ra7 Rg7 Rbb7 Nb4 Rf4 Rg8 Bd3 Nf5 Qc4 Rg3 Rg4 Qa6 Kb2 a1B+ Kb1 Qa5 Rc7 Bc3 Bc2 Bd2 Kb2 Na2 Ka1 Qa3 Bb1 Nb4+
1B1KBQQ1/3B2q1/Brr2n1B/1br1bR1p/2PPN3/1kPR1r2/2N4n/b4R2 w - - 0 1 illegal: No proof kernel
b2Q1Q2/1n1b1N2/1q1B1P1b/2n1nkr1/RPN3rP/1Q1R1p1b/N4QB1/4K2Q w - - 0 1 illegal: No proof kernel
2BN3r/KQR4Q/4P2b/n4RPQ/rQ6/1QP2N2/r1N1k1bp/B1b1n1rq w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 e4+ Ke6 b4 a5 g4 d5 c6 h5 g6 f5 g5 h4 c7 a4 g7 a3 c3 h3 b6 f4 b5 h2 b7 a2 b6 f3 Bh3+ Ke7 Kc5 f2 e6 f1R e5 d4 Qb3 d3 Bb2 d2 Na3 d1R Nc2 Nf6 g8Q Ra4 Nf3 Nc6 b8N Na5 b7 Ng4 Kb6 Nf2 Ka7 Rg1 Qh7+ Bg7 Rb1 Qd5 Ba1 Nd3 Rb2 Rg2 Rf1 Ne1 Rb1 Bd7 c8Q Bc6 Bg4 Rdd2 Rd1 Rde2 Rd4 Rd2 Rc4 Rg1 Rf2 Bb5 Rc5 Bf1 Qc6 Qe4 Qcb6 Bg2 Rc7+ Kf8 Nc6 Bh6 e7+ Ke8 Bb2 a1B Nd8 Re2 b8Q Qc6 Ba3 Bb2 Bc8 Bc1 Q6b4 Qe4 Q8b7 Rd2 Na1 Ra2 Bb2 Qd5 Nc2 Qc6 Qd3 Qe4 Ba1 Qd5 Ne6 Kf7 Nd8+ Kg7 e6 Qe4 Qe3 Kg6 e8Q+ Kf5 Qd3 Kg4 Qh5+ Kf4 Qd7 Kg3 Qh7 Kf4 Na3 Ke3 Rf1 Ke2 Nc2 Kd1 Nh4+ Kd2 Rf5 Kd3 Nf3 Ke2 Qa8 Qd5 Qab7 Bf1 Ne5+ Qf3 Qhh4 Qg2 Nf3 Qh1 Qh5 Bg2
2n4R/1N1N3N/P3Pb2/1Q1Rbbbk/3qrrnN/2B4Q/1RBP1p2/2n2N1K w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 g5 Kg2 b5 a4 f5 h4 Kf7 e4 c5 h6 Kg6 e6 b4 h7 b3 e5 b2 a6 g4 e7 c4 e8N c3 e6 c2 h5+ Kh6 a7 f4 d6 g3 d7 Qf6 d8N Bd7 a5 Qe5 a6 Nc6 Nb7 Qd4 Na3 b1N Qe2 Nc3 Nf3 Nce7 Nh4 Nf6 Bb2 c1B Nc2 Bb5 Ra5 Na2 Ne3 Bd3 Bc3 Bb2 Rd5 Ng4 Nf6 Bf5 Qb5 Nc1 Bd3 Nc8 Bc2 Bd6 Nf1 Be5 Rg1 f3+ Kh1 Rb8 a8N Rf8 h8Q+ Kg5 h6 f2 Ng8 Kh5 h7 Bf6 Nb6 Bg5 Nc5 Rb7 Nbd7 Rc7 Nb7 Rc5 Rd6 Re5 Rd5 Re4 Qg7 Rf7 h8R+ Bh7 Qf8 Rff4 Qa3 Ba1 Nh6 Bf5 Nf7+ Bh6 Ng5 Bb2 Nh7 Bg5 Nhf8+ Bh6 Bb3 Qd3 Bb4 Na2 Na5 Bf6 Nh2 Qd4 Bc2 Rf3 Nh7 Bhg5 Rb1 Nc1 Qc3 Ne5 Nf1 g2+ Kh2 g1B+ Kh1 Ng4 Nb7 Bh2 Rb2 Bd6 Qa3 Rff4 Qh3 Bb8 Bc3 Bbe5
4R1KR/2b1r2P/b3nqrR/2k4r/P1NNnn2/1rBPB1Q1/4p3/QB1BB3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 g5 a4 c5 h4 e5 f4 b5 h6 b4 a6 b3 f6 b2 f5 g4 a7 c4 h5 g3 h7 c3 h6 g2 f7 c2 f6 Bg7 f8Q+ Ne7 f7 Bg4 Nf3 g1R Be2 Rg3 Nd4 Qd7 Qg8 Rf3 f8B Qd8 Na3 b1R Nc4+ Kc5 d6 Bh3 d7 Rbb3 d3 Bg4 Be3 c1N Rh5 Qb6 d8B Qf6 Ba5 Nd7 Be1 Re8 a8B Rg3 Bd5 Rg2 Bf3 Ne2 Ra2 Be6 Qa1 Nf4 Bd1 Rg6 Re2 Bf7 Nd6 Nf5 Nc4+ Re7 Rhh2 Qa6 Rh4 Bf6 Bg7 Bg5 Rh1 Qf6 Rh5 Bh4 Be6 Bg3 Qb8 Rg8 h8R Rg5 Rh3 Rh5 h7 Bh2 Bf8 Rg6 Bg7 Rhg5 Rh6 Rh5 Bc2 Bg3 Bb1 Be8 Bf8 Ng7 Bg4 Nb6 Bc3 Bb5 Re1 Ba6 Bd1 Nbd5 Re2 Nge6 Be1 Bh2 Bg7 Nc3+ Kf3 Ng5+ Kg4 e4 Qe5+ Ncd5 Qb8 Nfe6 Qf4 Bg3 Qf2 Bc7 Qg3 Qf1 Be5 Ndf4 Kf5 Qf2 B3d2 e3 Bc3 Rg8 Kf6 Ng7 Bcd2 Ree8 Bc3 Ne4+ Kf7 Re6 Bcd2 Rge8 Bf6 R8e7+ Kg8 Qf3 Bg5 Rg6 Bc3 Qf1 Rg2 e2 Rg1 Nd5 Be3 Qf6 Rf1 Qb6 Rf6 Nf4 Rf8 Qf6 Re8 Nge6+
2RN3B/R2NN2p/2Nqn3/nP1r3r/b1BbR2Q/2nbQK2/1N2P1P1/k6n w - - 0 1 illegal: Other
5R2/Nr1Q3p/1BbP1RQB/n2Bbn2/PB2PrNn/7K/nBRqk3/4b3 w - - 0 1 illegal: No proof kernel
NNq1b2R/QR2BPn1/b4r1n/1bR2rp1/3K2RP/R2P1Bb1/3n4/Q1N3k1 w - - 0 1 illegal: No proof kernel
1B1b2B1/1kNRpRnR/r2Q4/1nbnbKR1/P2Q4/2PQ2R1/2rNP2b/7q w - - 0 1 illegal: No proof kernel
2n1N1r1/3PR2p/2q1P3/kr2bbK1/rn1R3B/QQrN4/4B1PB/QBnB4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 c5 Kf4 Kc7 b4 Kb6 d4 f5 e4 a5 d6 a4 d5 a3 d7 a2 g6 c4 g7 c3 d6 c2 e6 Qc7 d8B Bb7 e5 Ra6 d7 Ba8 e7 Nf6 e8B Be7 g8B Ra3 Nh3 Bf3 Nc3 Bb7 Ne4 Rd3 Be2 Rd4 Re1 Rc4 Kg5 f4 B8h5 f3 Bf4 c1R Bh2 f2 Nd6 f1R Ne8 Bd6 Nf2 Nd5 Nd3 Ka7 b6+ Ka6 b5+ Ka5 Bhf3 Bc8 b7 Ra4 b6 Na6 b8Q Ne7 b7 Rc3 Qa7 Rg1 b8Q Bb7 Bh5 Be4 Qbb3 Bf5 Bd5 Rh1 Be4 Nc8 Qa3 Rg1 Qdb3 Qb6 Bf6 Qc6 Rad1 a1N Rd2 Rf8 Bd1 Rf1 Bhe2 Rf3 Qg1 Nb4 Qd4 Rc5 Qdb2 Rb5 Qb1 Nac2 Qba1 Na2 Nf2 Rf4 e6 Rd5 Be5 Ncb4 Rd4 Bg6 Bb1 Rb5 Rf1 Nc1 Bg3 Rf3 Bh4 Rc3 Nd3 Be4 Rf7 Bf5 Bh2 Be5 Re7 Rg8+
Q4nnQ/1QP2n1R/1N2qQ1B/3N3b/r1Pp2B1/1R2Pbk1/1br1Q3/2NKn3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 h4 Ke7 c4 Ke6 b4 Kf5 e6 Kg4 e7 d5 e8Q a5 b6 g5 h6 f5 b7 f4 h7 a4 b5 f3 c6 a3 b6 d4 h5 a2 c7 Nd7 b8Q Qf6 h6 Ra4 b7 Ba3 Bh3+ Kg3 Bg4 Nf8 Nc3 Qe6 Nd5 Bb2 Rb1 a1N Qb5 Bd7 Qa8 Be8 b8N Bh5 Qbb7 f2+ Kd2 f1B Nd7 Bg2 N7b6 Bf3 Ke1 Ba3 Rb3 Bb2 Qd2 Nc2+ Kd1 Ne1 Qd3 Ne7 Bd2 Rg8 h8Q Rg7 h7 Ng8 Be3 Re7 Qf6 Rg7 Bh3 g4 Bh6 Rg5 h8Q Re5 Nc8 Re3 Qd2 Rc3 Ncb6 Rc2 Qd3 Kf2 Qd2 g3 Bg4 g2 Rh2 Kg3 Rh4 Nd3 Qe3 Ne5 Qe4 Rc3 Qc2 Nf7 Qd2 Be4 e3 Rc2 Qe2 Bf3 Bg5 Bg6 Rh7 Bh5 Bh6 Ra3 Nh3 g1N Nhf4 Ra4 Nd3 Bg2 Qac8 Nf3 Nc1 Ne1 Qca8 Bf3
3rbn1R/1rP1R1PR/pk1b1qn1/7N/4N1BP/QK4Rr/4R2B/1r2Nb1Q w - - 0 1 illegal: No proof kernel
1b1N1B1n/rP3qn1/KbPr3k/PB3Q1B/3p4/1Q1N2RQ/3Rb3/QQ2nn2 w - - 0 1 illegal: No possible last move
Rr1B1B2/Pk2r3/1N4Bq/B1P1Q2b/2R4K/Nr1P2b1/1p1n3n/1rbRQB2 w - - 0 1 illegal: No proof kernel
k4n2/brq1K2B/1R1N3N/NP3q1Q/nQPRN1P1/1p3nN1/rB4n1/3b3R w - - 0 1 illegal: No proof kernel
3N2B1/4nq1Q/1nRqBP2/5BBR/1r1bN1KQ/3P3p/1bb2P2/rkbB2R1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 a4 Kc5 g4 Kb4 g6 h5 d6 b5 d7 c5 d3 e5 g7 h4 a6 c4 a5 c3 a7 c2 g5 Kb3 a6 e4+ Kg4 b4 g6 e3 Nh3 e2 Ng5 e1B Ne6 Qc7 d8Q Nd7 Bg5 Kb2 Be2 c1B Nd2 b3 Ne4 Ne7 g8B Bb4 g7 Qd6 f6 Rh5 Qc7 Bc5 Nd8 Bd4 Be6 Nb6 g8B Bd7 Qg1 Bh6 Bd1 Ba4 Qg3 h3 Rg1 Rb8 a8R Rb7 Ra3 Kb1 a7 b2 Rc8 Bc2 a8B Ra7 Rc3 Ra1 Qh4 Bf8 Rc6 Bh6 Bf4 Rb5 Bg5 Rb3 Bb7 Rb4 Ra8 Bf8 Bbc8 Bh6 Bd2 Bf4 Ra5 Bfe5 Rd5 Ka2 Qb7 b1Q Bg5 Qb3 Bf5 Kb1 Bce6 Bdb2 Rb5 Bed4 Rbc5 Nec8 Qbh7 Ne7 Bc8 Qe5 Bfd7 Ra3 Bf4 Qd6 Rh5 Ra8 Bg5 Qbd5 Bf5 Qf7 Bce6 Ra1
1QbQq3/qnR1n2K/QP3N1B/2br1q2/7P/5R1P/NBr1p3/1B1kqQQ1 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 h5 a4 h4 axb5 h3 gxh3 Be6 h4 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 f4 e5 b6 c5 d6 a5 d5 g5 d7 g4 d6 a4 f6 a3 Kf5 a2 Kg6 g3 f5 c4 b7 g2 f7 e4 f6 e3 h3 c3 Nd2 c2 Bd3 Nh6 Ne2 Qe7 d8Q Qe6 d7 Qb6 Nc3 e2 Nde4 Kb3 Rf1 Qc7 Rf3 Qa5 Qg1 Bc5 f8B Ng8 f7 Nc6 Qf6 Rh5 d8Q Rd5 Kh7 Nge7 b8Q+ Qb5 Qg6 Na5 Bfh6 Nb7 f8Q Qe8 Nf6 Ra3 Rb1 a1Q Na2 Ra6 Qff7 Rc6 Be4+ Ka4 b4 Qe5 b5 Qf5 Bb2 c1Q Qf8 Qe1 Rc1 Rc7 Bb1 Rc6 Qf1 g1Q Qg7 Qe3 Qg8 Kb3 Qe6 Bd6 Qg8 Rc2 Qe6 Bc5 Qc6 Kc4 Qa6 Kd3 b6+ Kd2 Bf8 Qa3 Bh6+ Qf4 Qgg1 Qg5 Qc4 Qa7 Qb5 Rc4 Rcc3 Kd1 Qa6 Qgh5 Rce3 Rc2 Rc3 Bf2 Rc6 Bc5 Rc7 Qf5+
5Rn1/1B4BP/1Np2BK1/RnR2R1Q/2R4Q/1P1kPrq1/1bNbr1bb/5q2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 g5 Ke4 a5 Kf5 f6 d4 a4 h4 a3 b3 c6 d6 a2 h6 g4 d5 g3 h5 g2 h7 Ra7 h6 Na6 e3 Nc7 b6 Qe8 b7 Ra4 b8R Qe6+ Kg6 Bg7 Na3 Rd4 Ba6 Na8 Bb2 Qe7 e6+ Kd8 d7 Kc7 d8B+ Kd6 Nc2 Kc5 d6 f5 d7 f4 Rb4 f3 Bb7 f2 Nf3 f1Q Nd2 g1B Nc4 Kd5 Qh5+ Ke4 Nb6 Qd6 Rc4 Bh2 Bf6 Nc7 d8R Nb5 e7 Kd3 e8R Rf4 Re5 Rf3 Rec5 Bh3 Rf8 Bg2 Rf5 Qb8 Rc1 a1B Rg1 Bh1 Rgg5 Qg3 Bbe5 Bd4 Ra1 Bc3 Ra5 Bd2 Bb2 Bg2 Rfc5 Qge1 Rgf5 Rh3 Be7 Bge5 Bf6 Rf3 Ba1 Bb2 Bg7 Nf6 Qh4 Rg8 h8Q Qef2 Qh7 Rh8 Qh5 Ng8 Bf6 Q2e1 Qe7 Rh7 Qd8+ Rd7 h7 Qg3+ Bg5 Bdc1 Qh3 Ba3 Rcd5+ Ke2 Bg7 Bab2 Rdc5 Rd2 Qf6 Kd3 Qh5 Rdf2 Qe7 Bd2 Qe4+ Ke2 Qeg4 Kd3 B5f6 Re2 Qh4 Qb8 Qgh5 Qg3+
1NR3r1/2K2pqq/1BQ1r2P/3B1b2/Qr1PB2N/1Pn1R1R1/rR2n3/2k1b1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 g5 Kd4 a5 Kc5 a4 e4 c6 h4 a3 e6 Kf6+ e7 Ke5 h6 Kf4 d6 a2 e8B g4 h5 g3 h7 g2 b6 Qc7 h6 Qd8 e5 Bf5 b7 Ne7 e6 Qc8 Kb6 c5 d7 c4 d8R c3 Bd3 c2 Ne2+ Kf3 Re1 g1Q+ Nd4+ Kf2 Bc6 Qg8 Re3 Ra4 Bde4 Bg7 Bcd5 Bf6 Nc6 Qd7 Rc8 Qg7 d3 Be5 Nd2 Bc3 Nf3 Be1 Nh4 Rg8 h8R Kf1 Bd2 c1R Ba5 Rac4 Rb1 a1R Qa4 Ra2 b3 Qe8 Kc7 Rb4 Bb6 Rc3 Rg3 Ke2 Rb2+ Kd1 Rg1 Kc1 d4 Nd7 b8R Nf6 Rh7 Ng6 e7 Nf4 Rb7 Rf3 Nb8 Ne2 Rh8 Qb5 e8Q Re3 Qc6+ Qc4 Ra7 Qc2 Ra8 Nc3 Re8 Nh5 Re7 Nf4 Rg3 Rd8 Rg8 Nfe2 Rg1 Qf8 R8g3 Qg7 Nd7 Re8 Rc8 Rg8 Nb8 Qb1 Bg2 Re6 Bgf3 Rf6 Re3 Re6 Bg2 Bh3 Bgf3 Qbh7 Bfe4 Bf5
K6q/3PRn2/1Q2PqRr/b3N2n/2Nq1QN1/2B3P1/Bpk1bR1r/R3R1q1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Kf3 c5 Ke4 b5 a4 h5 d4 h4 g6 b4 d6 Kc6 d7 h3 d5+ Kc7 e6 Kd6 g3 h2 e7 b3 e8N+ Ke7 d6+ Ke6 g7 f6 a6 b2 a5 c4 a7 c3 a6 c2 Nd2 Rh5 Nc4 Ne7 g8R Rh7 Qd4 Bh6 Bd2 c1Q Nf3 Nec6 Rg6 Ne5 Bc3 Nf7 Nfe5 Bd2 e3 Qb6 d8Q Rh6 Bg2 Nd7 Re1 Qb4 Q8b6 h1Q Bf3 Rb8 a8R Qa4 a7 Ba6 Bg2 Qg1 Bh1 Qcd1 Bg2 Qh5 Bf1 Rb7 Bd3 Qhh2 Bb1 Rb8 Ba2 Rd8 Kd3 Kf5 Rc8 Qh4 a8R Qh3 Ra7 Qb4 Nc7 Rdh8 Rf8 Qh5 Ne8 Qc5 Qh4 Qd4+ Kc2 R8h7 Kb3 Rh8 Qg5+ Ke4 Kb4 f5 Ka5 Nf6 Re7 f4 d7 Qhh2 Qh4 Nh5 Qhf6 f3 Qfd6 f2 Nf6+ Kf5 Nfg4 Ke4 Qf6 f1Q Qfd6 Ng5 Rf2 Nf7 Qdc7 Bb7 Kb5 Ba6+ Kc6 Bb5+ Kb7 Qhh1 Rg2 Qf6 Rf2 R8h7 Ka8 Qhh4 Nf3+ Kd3 e4 Kc2 e5 Qh8+ Qcb8 Q4f6 e6 Ba6 Nfe5 Bb5 Na5 Be2 Nac4 Qc5 Bd4 Ba5 Bc3 Qd6 Qe3 Qd4 Qf4 Ng7 Qd8 Rh2 Qb8 Nh5 Qd8 Rh6 Qb8 Qh7 Qb6 Qhh8+
1Q3rQb/P2nN1R1/3P1R1B/4n1Rn/3kPQK1/N2pq2B/2bnr1Q1/2q1Q3 w - - 0 1 illegal: No proof kernel
r4NnQ/prBN4/3P2P1/3N2b1/1QbN2k1/q1R1K2n/PqBQ4/nR2nN2 w - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 g5 c4 g4 cxd5 g3 hxg3 Nd7 g4 Nb8 g5 Bd7 Ne2 Be6 Ng1 Bc8 Ke2 Kd7 f4 b5 g4 h5 d4 e5 c6+ Ke7 f6+ Kf7 d6 Ke6 g6 h4 g7 h3 d7 b4 f7 e4 d5+ Kf6 c7 h2 f5 e3 g5+ Ke5 g6 Kf4 f6 b3 Qe1 b2 Nd2 b1Q Ngf3 Qb2 Rb1 Nh6 g8Q Qb4 Nd4 Qe8 d8Q Rh7 Qh8 Be6 c8N Kg4 Nb6 Be7 f8N Ng8 f7 Na6 Nfd7 Bg5 f8N Qa3 Qe7 Qc8 Qb4 Qb8 d6 Qb7 Nd5 Nc5 Bg2 Rf7 Nf1 Nb3 Bd2 Na1 Be4 Rg7 Bc3 Qb8 Kd3 e2 Qd2 e1N+ Ke2 Qb6 Bc2 Re7 Qb5 Rg7 Ba5 Qb7 Qc4 Qbb2 Bc7 Rf7 Qcb4 Rh7 Ng3 Re7 Rf1 h1N Rf3 Nf2 Nf1 Nh3 Rc3 Rf7 Nf4 Bc4+ Ke3 Rf5 Ng3 Rb5 Nf1 Bf6 Nd5 Rb7 Nf3 Bh4 Nd4 Bg5+
B4rBB/2nQ1PQ1/rnB1q2p/3BP1qP/rK1R1N1k/R6N/1R5q/1n1b4 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 f5 d4 e5 dxc5 Be7 g3 Bg5 fxe5 f4 Bd2 f3 Bc1 Bf4 gxf4 Kf7 Ra6 Kf8 Ra1 Ke8 e6 Ke7 Kd2 Kf6 Kc3 a5 e4 g5 b4 d5 h4 a4 e7 g4 e8B f2 c6 g3 c7 h6 f5 a3 h5 a2 b6 g2 b5 Ra5 b7 Na6 b8Q Ne7 b6 Nc6 b7 Rf8 Bc4 f1N Bb2 Kg5 f6 Ne3 Qa7 Nf5 b8R Ncb4 Rh4 Bd7 c8B Qe7 Bb7 Rc5 Ba8 d4+ Kb3 d3 Bg8 d2 c4 Qf7 Nc3 Nc2 Nce2 Qe6 f7 Bc6 Bh8 Nd6 e5 Bf3 Rd4 Na3 Nf4 Nc8 Ngh3+ Kh4 Qg1 Nb1 Rb6 Na3 Ba4 Nb1 Qd7 Rd5 c5 Be2 B4c6 Nc7 Nd3+ Bg4 Kc4 d1Q Rb2 Qc2+ Kb4 Nb6 Ndf4 Be2 Qh1 g1Q Qg2 Bd1 Qg7 Qgg2 Rc4 Rd3 Rd4 Ra3 Bd5 Qg5 c6 Ne8 c7 Ra6 c8B Nc7 Bcb7 Qh2 Rb3 Na3 Rab1 a1R R1b2 Nb1 Bbc6 R1a5 Ra3 Ra4+
1N1R1qk1/P3n3/1bnnp2r/Q7/qR2PQ1K/Q4QPB/3BQ3/r1NrR1q1 w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h3 Bg4 hxg4 a3 bxa3 Nd7 a4 Nb8 a5 Qc8 Nf3 Qd7 Ng1 Qd8 Kf2 h5 Kg3 b5 a4 f5 e4 Kf7 d4 c5 d6 c4 d5 e6 g6+ Kg7 a6 b4 d7 b3 d6 b2 g5 f4+ Kh4 c3 a5 f3 g3 c2 a7 f2 a6 Nf6 Qe2 Nd5 Bh3 f1R Na3 b1N Nc4 Nf4 Na5 Na3 Bd2 c1Q Rb1 Qe1 Rb4 Kg8 g7 Qe8 d8Q Qe7 d7 Rh7 Nc6 Nc4 Qa5 Rh6 d8R Qa1 Qf3 Qa4 Ne2 Rb1 Re1 Rd1 Nc1 Nd5 Qe2 Nd6 Qf3 Nd7 Nb8 Ne5 Qe2 Qf7 Qf3 Ne7 Qf4 N5c6 Qf3 Kh7 Qe2 Kg6 g8Q+ Bg7 Qf8 Kh7 Qf3 Bd4 Qe2 Qg8 Qf4 Qf8 g6+ Kg8 g7 Bb6 Nd7 Rc8 a8Q Rc7 Nb8 Rd7 Kg5 h4 a7 Rc7 Qb7 Rc8 Qba6 Rc7 Qad3 Rb7 Qdf3 Rd7 Bg2 h3 Qa3 h2 Bh3 h1Q Qef3 Rg6+ Kh4 Qg1 Na2 Rc7 Bc1 Nd4 Qe2 Kh7 Bd2 Rcc1 Qff3 Rb1 Nc1 Ndc6 Qf4 Ra1 Qff3 Qe3 g8Q+ Kh6 Bc3 Qg1 Qgf7 Rf6 Nb3 Rg6 Q7f4+ Kh7 Nc1 Kg8 Bd2 Rh6+
r1q1B1kB/q4pN1/1KB1RPN1/nB1Qb1BQ/6q1/2q2P1Q/3RP2n/1q4r1 w - - 0 1 illegal: No proof kernel
1Q2qN1B/n2PP1B1/2r1rp1B/2B2P1r/2r2R2/3B1R2/1QQb3K/rnq1kN2 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e5 dxe5 d4 axb5 Bb7 c4 Bd5 cxd5 Rh6 Qd3 Rh7 Qd1 Rh8 e4 Ke7 b4 a5 h4 c5 f4 g5 Kf2 f6 Kg3 c4 b6 a4 h6 a3 h5 d3 b5 d2 f5 c3 d6+ Kf7 e6+ Ke8 b7 a2 d7+ Ke7 h7 Kd6 e7 Ke5 e8Q+ Kd4 b6 Ke3 e5 c2 h6 g4 e6 Qe7 Nh3 Ra5 Nf4 Re5 Rh4 Nc6 b8B Na7 Kh2 Kf2 b7 Qf7 Qe7 Qe8 Qa3 Ne7 Bd6 Nd5 b8Q Nc3 e7 Re6 Ng6 Rg8 h8B g3+ Kh1 g2+ Kh2 g1R h7 Rg3 Qab2 Rg5 Bd3 Bh6 Bg7 Rg4 h8B Rc4 Nf8 Rc6 Qf3+ Ke1 Qg2 d1R Nd2 Nb1 Nf1 Bd2 Rf4 Rc4 Bc5 Rc6 Bh6 Rg5 B6g7 Ba5 B1e3 c1Q Qgc2 Rd2+ Be2 Rdd6 Bd3 Bd2 Rf3 Re6 Bf4 Rg3 Bfh6 Rg5 Rf4 Nc3 Rb1 a1R Rf3 Raa4 Ra1 Nb1 Ra2 Raa6 Ra4 Ra5 Rb4 Ra1 Ra4 Rc3 Rh4 Rc4 Rhf4 Rh5+
rr6/2Q1p1Q1/KQRqPbq1/2Nq1kP1/Rq6/nBBN4/1q1PQ2n/Q1N5 w - - 0 1 illegal: No possible last move
b3N3/r2p1Qqk/bn1P1b1N/2r3RQ/P2Q3K/P1B1NN2/2N1RqB1/1q3b2 w - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 f5 exf5 b5 b3 a4 bxa4 Nc6 c4 b4 Rh6 Na7 Rh1 Nb5 cxb5 Ra6 Rh3 Ra5 Rh1 Ra8 g4 Kf7 f4 Kg7 Kf2 e5 Kg3 c5 d4 h5 f6+ Kg6 b6 b3 a3 b2 b7 e4 b8N c4 f7 e3 d5 c3 d6 e2 f5+ Kh7 g6+ Kg7 g5 c2 Ra2 Rh7 f6+ Kh8 Na6 Qa5 Qd4 Qc7 Nc3 b1B Bb2 c1Q Bg2 Ra7 Kh4 Bc2 Nf3 Rh6 g7+ Kh7 Nb4 Bd3 Ncd5 Qg1 Nc2 Bca6 Nde3 Ne7 g8N Bg7 f8Q Nc8 f7 Nb6 Bc3 Bf6 Qe8 Qb8 Rh3 e1Q+ Rg3 Bf1 f8Q Qb1 Rb2 Rg6 Qff7+ Rg7 Qee5 Qf8 Nh6 Qg8 Kh3 h4 g6+ Kh8 Kg4 h3 Qh5 h2 Kh3 h1B Rg5 Qh7 Kh4 Rg8 Ra2 Rc8 Rb2 Qg8 g7+ Kh7 Ra2 Qh8 g8N+ Qg7 Rb2 Rc5 Ra2 Be7 Nf6+ Kh8 Ne8 Kh7 Nce1 Bd8 Re2 Bf6 Bh3 Bhg2 N1c2 Bh1 Nfe1 Bhb7 Nf3 Ba8 Bg2 Qf2+
1NR2b2/2P3K1/BRq1r1N1/pqnk2B1/P1RB1q2/Q4b1P/nq1B4/B3b2Q w - - 0 1 legal: proof: g4 b5 b4 c5 bxc5 d5 e4 h5 gxh5 a5 exd5 e5 f3 e4 f4 Ra6 Bd3 Re6 Bf1 Re5 fxe5 Qf6 Bc4 Qb6 Bf1 Qd8 Ke2 Kd7 Ke3 g5 Kd4 f5 a4 b4 c4 f4 h3 f3 c6+ Kc7 d6+ Kb6 h6 g4 h7 e3 c7 Kc6 e6 g3 Ke5 e2 d4 e1Q+ Ne2 g2 c5 g1B d5+ Kb7 c6+ Kb6 d7 Kc5 d6 b3 e7 f2 e8Q b2 Nd2 b1Q Nb3+ Kc4 Nd4 Ba6 c8R Qc7 d8B Bg7+ Bf6 Qb2 Qe7 Qa7 d7 Qec3 d8B Qcb3 c7 Bf8 Qa3 Qa8 Bd2 Ne7 Rb1 Bb7 Nf4+ Qd3 Qf3 Nd5 Ng6 Nc3 Nc6 Na6 Nb8 Nc5 Rc1 Rg8 h8B Qa6 Bfg5 Qc6 Bdf6 Ba8 Be2 f1Q Rh2 Bf2 Qh1 Be1 Rb1 Qbb7 Rb6 Na2 Bhg7 Rh8 Rg2 Rh6 Rg4+ Ne4 Rf4 Qf3 Kf5 Kd5 Ba1 Qdb5 Bgd4 Nc5 Bd3 Qb2 Ba6 Qcb5 Kf6 Q7c6+ Kf7 Bb7 Nh4 Re6 Ng6 Ba8 Kg8 Bb7 Re4 Qf4 Kh7 Be7 Kg7 Bf8+ Kg8 Kc4 Re3 Qcd6 Rd3 Bg2 Rc3+ Kd5 Rc4 Bf3 Kh7 Qdc6 Kh8 Be7 Kg7 Bf8+
nKb1Bq1r/p1P5/k3q3/B1RB2QB/P3r2N/2r3Q1/4PnNq/1Q2BRq1 w - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Bh6 dxe5 Bg5 hxg5 Ke7 Bf4 Kf8 Bc1 Ke8 Kd2 b5 Ke3 d5 Kf4 Kd7 c4 Kc6 a4 Kb7 c6+ Ka6 g6 h5 e6 h4 Ke5 h3 f4 b4 c5 b3 g7 b2 c7 h2 f6 g3 c6 g2 e7 d4 e8B d3 f7 d2 f8Q Ka5 f5 Qd7 f6 Rh7 f7 Na6 Qa3 Qh3 Kd6 Qf3 f8B Rb8 Nh3 g1R Bg2 Rf1 Nf4 Nh6 g8Q Qe3 Qg5+ Kb6 Bd5 Qe4 Ng2 Ka5 Qag3 Rf4 Rf1 h1Q Bg7 Rf3 Bc3+ Rb4 Qde1 d1Q Nd2 Re3 Nf3 b1Q Nfh4 Qh2 B1d2 Rh8 Bh5 Qbd3 Rc1 Ng4 Rc2 Qa1 Qb1 Nf2 Be1 Qa3 Bcd2 Qdd4 Rc5+ Kb6 Be8 Rbb3 Bb4 Rbc3 Bh5 Qg4 Be8 Re4 Bh5 Bf5 c8B Nc7 Bd7 Na8 Bde8 Bc8 Ba5+ Ka6 c7 Qe5+ Kc6 Qee6+ Qd6 Qgh3 Rc4 Qf4 Bb6 Qh1 Ba5 Qe7 Qde5 Qfh2 Qeg3 Rce3 Rc3 Q1g1 Rc2 Qe5 Rc3 Qf8 Rc5 Bb7+ Kd7 Rc3 Kd8 Bc6 Kc8 Bb7+ Kb8 Bc8 Bhg6 Qee7 Bh5 Qe6
3n3n/p1K1B2Q/2R2RPN/1k2nRrN/4n3/Pq2q2Q/BR2b1Pb/2QR3q w - - 0 1 legal: proof: f4 b5 h4 g5 fxg5 c5 d4 e5 dxe5 c4 h5 c3 bxc3 Na6 c4 Rb8 c5 Rb7 Na3 Rb6 Nb1 Rg6 hxg6 Bd6 Rh6 Be7 Rh1 Bf8 Kf2 f5 Kg3 d5 Kf4 Kd7 c4 Kc6 e4 h5 a3 d4 g7 d3 e6 h4 Ke5 b4 e7 h3 e8R h2 g6 f4 Re6+ Kc7 c6 Kb6 c7+ Kc5 Nh3 b3 Nd2 b2 Nf2 b1Q Ra2 f3 Rf6 Qc2 Rb2 Rh7 Ng4 f2 Nh6 Bf5 c8Q+ Nc7 Qe6 Ne7 g8Q Ne8 Qgf7 Rh8 Qh7 Bg4 Rg1 Bf3 Qh3 h1Q Rf5 Kc6 c5 Be2 Ke6 Qd4 e5 Nd6 Ne4 d2 Ng3 Qdd3 Nh5 Nf7 Qe1 d1N Bg5 Ne3 Qc1 Ng4 Rf6 Kc7 c6 Qe3 Bh4 Qcc3 Rf5 Qb4 Bf6 Kb6 Kd7 Bg7 e6 Qbb3 c7 Nc6 c8R Ncd8 Be7 Be5 Rc6+ Kb5 Rf6 Bg3 Kc8 Nge5 Kc7 Bh2 Rf5 Bc4 Be2 Rf8 Rd1 f1N Bf3 Nd2 Bd5 Be2 Rf6 Qb4 Ba2 Rh8 Bc5 Qbb3 e7 Ne4 e8R Rf8 Be7 Nh8 Rf5 Rf6 Rf8 Rd6 R8f6 Rd5 Rf3 Nef7+ R3f4 Rg5 Rf5+ Ne5 Rff6 Nb7 R4f5 Nd8
1k2NR2/qb1r3p/1q2B3/NQ2r1qn/2R5/1P1P2RK/r1Q1n2P/1RR1Br1Q w - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 gxf5 e6 e4 b3 e5 Ba3 axb3 Bd6 b4 Be7 b5 Bf6 exf6 Qd6 Kf2 Qe7 Ke1 Qd8 Kf2 Kd7 Kg2 g5 b6 a5 f7 c5 f8Q g4 f6 c4 b7 Kc7 b3 a4 d6+ Kd7 f7 c3 d3 a3 f5 e5 f6 c2 Nh3 e4 Nd2 a2 Ng5 e3 Rb1 a1R Nge4 e2 Nc4 e1Q Bd2 c1Q Na5 g3 Qc2 Qb6 Kh3 Nc6 b8Q Qee3 Be1 Qa7 Qb5 Bb7 Qb8 Qg1 f8R g2 f7 Ra2 Rc8 Qgb6 f8R g1R Qd5 Nd4 Rc4 Qd2 Rf3 Nf6 Rg3 Qg5 Be2 Rc8 Bg4+ Kd8 d7 Ne2 Be6 Nh5 Nf6 Rf1 Qbe5 Rc7 Ne8 Rc5 Qf3 Rc7 Qb5 Rc5 Rhg1 Re5 Qh1 Rc8 Rc1 Rc7 Rb1 Ke7 d8R Rd7 Ng7 Kd6 Rf8 Bc6 Rc1 Kc7 Ne8+ Kb8 Rb1 Rf3 Bb4 Rf6 Rgc1 Rf1 Be1 Bb7
r1qN4/P3NRp1/2Q2Nq1/4R1Q1/1K1r4/n4QN1/P1rr1BPN/k1nBb2n w - - 0 1 illegal: No proof kernel
3r1BBb/2r1R1p1/3RNPPn/Nb5b/1K1B3Q/nP2b1BQ/2krn2B/4R3 w - - 0 1 illegal: Other
krR1r1b1/1rn1b3/1B2P3/1rrp1N2/rn1PK1N1/1BR3Q1/P2B1B2/1N1Q1B2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Qg5 bxa5 Qe7 c4 b4 Qa4 Qc5 Qd1 Qb5 cxb5 Rh6 Nf3 Rh7 Ng1 Rh8 Kf2 Kd8 Kf3 g5 h4 f5 e4 c5 h6 Kc7 h7 Kb7 a6+ Ka7 h5 f4 h6 b3 e6 b2 e5 g4+ Ke4 g3 e7 c4 e8N f3 Nh3 g2 Nf2 g1R Ng7 c3 Nf5 c2 Ng4 f2 Rh3 Be7 Rc3 Nc6 b6+ Kb8 b7 Nb4 d3 d6 Bd2 c1R d4 Bd7 e6 Be8 Rc8+ Ka7 Rc3 Bf7 b8B+ Kb6 a7 Kb7 Rc8 Rc5 Bc7 Rg3 Bd8 Rb8 a8B+ Ka7 Bd5 Ra3 Bdc4 Ka8 Bb6 Ra4 Bb3 Nf6+ Kf4 Re8 h8Q Rc3 h7 Rc5 Qg7 Bg8 h8B Nfd5+ Ke4 Nc7 Qg6 Rb5 Be5 Rc5 Bg3 Rb5 Bfc4 f1R Bf2 Rh1 Bf1 Rh5 Na3 Rc5 Rc1 b1R Rc3 Rb2 Nb1 Rb5 Ba7 Rb7 Bb6 Rc2 Ng7 Rb5 Nf5 Rc1 Qg5 Rc2 Qf4 Rc1 Qg3 Rc2 Rf3 Rcc5 Rc3 d5+
b6N/2r2N1n/k1r2nP1/BnpbQK2/N1B1bNQ1/4qp2/1PQ2P1N/3R3R w - - 0 1 illegal: No possible last move
6bB/B1qR3n/B4np1/2P1P1k1/RQ1R1R1b/Q1rn1rp1/N2KrP1R/1N6 w - - 0 1 illegal: Other
2R2N1b/1RB2K2/qBpn2QP/1NRPP2b/r1Q2brp/2B5/2B4k/2B1n2r w - - 0 1 illegal: No proof kernel
5q2/2NbnQ1r/pBbb2R1/3p1Q1N/B1K3PR/rQ6/1P1r1n1P/k4NQQ w - - 0 1 illegal: No possible last move
bq2B3/7p/1r3N1R/2Pb1k2/1N1bnB2/NB1rP1nP/pNRNQ2r/3Q1K2 w - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 c4 Ke7 g4 Ke6 g6 d5 c6 f5 c7 a5 b6 d4 g7 a4 g5 a3 c5 d3 b7 f4 g6 f3 Bf4 a2 e3 Bd6 Na3 Qe7 Rc1 Qd8 Rc2 Nd7 b8N Ne7 g8Q+ Kf5 e6 Be5 g7 Ra6 Nc6 Bd4 Nb4 Bb7 c8N Nf6 Nb6 Ba8 Na4 Qb8 Nb2 d2+ Kf2 Rb6 Bc4 Bd5 Kf1 f2 Nf3 Ne4 Bb3 Ba8 Qc8 Rd8 g8N Rd7 Qe2 d1B Nd2 Rd5 Nf6 Rd7 Kg2 f1R Qd8 Rf2+ Kg1 Rg2+ Kf1 Bd5 h3 Ba8 Rg1 Rh2 Rg6 Bd5 Rh6 Ba8 Qf2 Bf3 Qe1 Ng8 e7 Ng3+ Kg1 Bfd5 e8B Ne7 Qe2 Nc8 N4d3 Nd6 Nb4 Nh5 Kf1 Ne4 Ndc4 Rdd6 Nd2 Nhg3+ Kg1 Be6 Qf3 Be5 Nf1 Rdd2 Qe2 Rd1 Qdd2 Bc3 Qc1 Rd2 Qcd1 Rd3 Nd2 Bed5 Qb1 Nh1 Qbd1 Bd4 Kf1 Nhg3+
1k2N3/5BP1/1Bn1qP2/4pQ1b/Kpn1BB2/1QN1bb2/3rPR1r/3n1BRR w - - 0 1 legal: proof: g4 a5 h4 g5 hxg5 d5 b4 f5 gxf5 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Be6 Na3 Bd7 Nb1 Bc8 a4 Kd7 f4 e5 d4 b5 Kd2 h5 Kc2 c5 Kb3 Kc7 g6 b4 a6 h4 a5 h3 a7 c4+ Ka4 c3 f6 h2 g7 c2 a6 Rh7 d6+ Kc6 d7 Kc7 d5 Nc6 d6+ Kb6 f7 Rh3 f5 Rd3 Nc3 Nce7 Nf3 Bb7 Nd2 Bf3 Nde4 Nh6 Nf6 Qe8 Bf4 c1N Qb3 Nc6 d8R Ng4 d7 Bc5 f8Q Qe6 Ne8 Na2 Rb1 Rc8 a8B Be3 a7 Rd2 Bb7 Rb8 a8B Ka7 Ba6 Rc8 Bc4 Kb8 Rg1 h1B Ra1 Na7 Be4 Nc6 Rb1 Bc5 Qf7 Ne3 Qh5 Bd4 f6 Bhg2 Qf5 Bh5 Rd1 Bgf3 Rg2 Qg8 Bf7 Nc4 Rf2 Be3 Rb1 Qf8 Re1 Qd6 Rd1 Qe6 Rc1 Ka7 Ra1 Ra8 Rc8 Rb8 d8B Ka8 Rc7 Rc8 Rd7 Kb8 Bb6 Rd8 Nd6 Rh8 Ne8 Bg6 Rd4 Rh2 Rb1 Bgh5 Rd3 Rc2 Rdd1 Rd2 Bg2 Nd8 Nb5 Kc8 Rh1 Kb8 Rbg1 Nc6 Bh3 Nc1 Bf1 Nd3 Nc3 Ndb2+ Kb5 Nd1 Ka4 Qe7 Bg8 Qd7 Bf7 Qe6
1N1R3q/n3PN2/3RNB2/1rn1BpB1/5Q1r/pn3PP1/k2r1bB1/B1K2Q1b w - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 e5 hxg5 Qd6 dxe5 Kd8 c4 Ke8 cxd5 Qd8 Kd2 Ke7 b4 h5 e4 f5 e6 Kd6 e7 c5 e8N+ Ke5 g6 Kd4 g7 a5 e5 a4 d6 a3 f3 c4 d7 h4 g3 h3 e6 h2 b6 Nc6 b7 Ra6 b8B Ra5 b5 Bc5 b6 Bb7 Nc7 Qe8 d8B Qh5 Nc3 Nb4 Na2 Rb5 Nh3 Qe8 Ng5 Bd5 b7 Bb6 Bg2 Nd3 Nf7 Nc5 Qf1 Ne7 g8Q Nc8 Qg5 Rh4 Nb4 Na7 Nba6 Qh8 Qf4+ Be4 Kd1 Kc3 Bf6+ Kb3 e7 c3 Ne6 Bd3 Bbe5 c2+ Kd2 Bc4 b8B Be2 Rb1+ Ka2 Ba1 Bd3 Rg1 h1R Bbe5 R1h2 Nb8 Bc4 Rb4 Bd3 Rd4 Bc4 Bcb2 c1N Rd8 N1b3+ Kc2 Be2 Bg5 Bc4 Bef6 Be2 Bbe5 Bc4 Qf2 Be2 Rgd1 Bf1 Bh3 Bg2 Qf1 Bh1+ Bg2 Ne4 R1d3 Bf2 R3d6 Nec5 Qe3 Rd4 Qe4 Rh4 Qf4 Na5 Kc1 Rd5 Nf8 Rd2 Ne6 Nab3#
qBNrN2B/1krp1PQ1/1n1B2R1/1K1P2b1/1Q1rb2R/B3nP1B/2pN2n1/8 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 c4 b3 axb3 Bb7 b4 Ba6 b5 Bc8 b4 c6 c5 Qc7 b6 Kf7 b7 Qb6 cxb6 Ke8 b5 Rh7 Qb3 Rh6 Qd1 Rh8 Ke2 Kd8 Kd3 e5 Kc4 a5 h4 g5 d4 g4 f3 e4 h6 a4 h5 a3 d5 e3 f6 e2 h7 e1N h6 a2 f7 c5 Nd2 g3 Rh4 g2 Qb3 Nc6 b8N Na7 b7 Kc7 Qb4 Be7 Nh3 g1R Nf2 Nf6 Nfe4 Ng2 Nd6 Rd8 h8B Ng4 h7 Bg5 Ba3 Kb6 Rd1 a1Q Na6 Rb8 Nc7 N4e3+ Kb3 c4+ Ka4 c3 Nce8 Ra8 b8B Ba6 Nc8+ Kb7 b6 c2 Bd6 Bd3 Ka5 Be4 Rb1 Nc6+ Kb5 Ra7 Rb3 Ne7 Rc3 Ne1 Bh3 N1g2 Rc6 Qa2 Bc7 Rd1 Rg6 Nc4 Bd6 Nf5 Bhe5 Qa1 h8Q Nfe3 Qg7 Qa2 Nb3 Rd4 Nd2 Ka8 Bf6 Rc7 b7+ Kb8 Qg8 Nb6 Bh8 Qa1 Qg7 Qa2 Ne7 Ka7 b8B+ Kb7 Nc8 Qa1 Bc1 Qa7 Ba3 Qa8
3Q4/n1PpB1r1/PRR1N1k1/1nKP4/4bB1n/2rbR3/1BQp4/1BbBN1q1 w - - 0 1 illegal: Other
4N3/BP1P2Bq/kp3BbR/1Np5/2R2Bb1/1n1N1P1n/K5BQ/br1Qrn2 w - - 0 1 illegal: No proof kernel
1nBR3r/P1k2p1q/3b1P1Q/1b3R1R/N1r1r1BB/K2PR2p/2bQN3/1R3n2 w - - 0 1 legal: proof: h4 e5 b4 a5 bxa5 d5 Nf3 g5 hxg5 e4 Ng1 e3 dxe3 d4 Bd2 d3 cxd3 Bd6 Bc1 Bf8 Kd2 Kd7 Kc2 c5 Kb3 b5 g4 h5 a4 h4 f4 b4 e4 Qf6 f5 Rh7 g6 Bg7 a6 Qb6 a7 Nf6 g5 Rh6 a5 Rh8 a6 Ng4 f6 Rh7 e5 Qc6 e4 Bh8 e6+ Kd8 g7 Nf2 g8Q+ Kc7 e5 Kb6 e7 Qb5 e8R Nc6 g6 Rh6 g7 Ng4 e6 Kc7 e7 Nb8 Rd8 Rg6 e8R Nh2 Re3 Bd7 Bh3 Nf1 Ne2 Rg4 Qd2 Re4 Qh7 c4+ Ka2 c3 g8R c2 Nbc3 b3+ Ka3 b2 Na4 b1B Bg4 Be8 Qh6 Qf5 Rg5 Qh7 Rf5 Bb5 Rh2 Bg7 Rhh3 Ba2 Rb1 Bb3 Rh2 Rb4 Rh1 Bf8 Rh2 Bd6 Rhh3 Nc6 Rh2 Rc8 a8B Nb8 a7 Re4+ Qb4 Re7 Bb7 Re4 Bd2 c1R Be1 Rc5 Qd2 Bc2 Rhh3 Na6 Bf2 Ra8 Bc8 Nb8 Rhf3 h3 Rh5 Bc6 Bg3 Bb5 Rff5 Rcc4+ Rb4 Re6 Bb7 Rc5 Rh8 Rc4 Bh4 Na6 Rg8 Rae8 Bc8 Nb8 Rh8 Ree4 Rf8 R8e5 Rd8 Re6 Qf4 Re8 Qh6 Be5 Rb2 Rh8 Rb1 Bd6+
KBb1B2Q/p2r3N/k1P2Q1r/2R2b2/4b3/P1P1NN1q/n2p1Nn1/1Q2rRN1 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 Qe7 Qd2 Qf6 Qd1 Qd8 g4 Ke7 h4 Qe8 h5 Bg7 g6 Kf8 h6 Qe7 hxg7+ Ke8 g5 Qd8 Kf2 d5 Ke3 Kd7 Kd4 Kc7 e4 b5 a3 Kb7 c3 f5 e6 h5 e7 h4 e8N b4 e5 f4 e6 f3 e7 h3 Nd2 f2 Bb5 f1B Nc7 b3 e8N h2 Nf6 b2 Nh7 b1B Be8 Bfd3 Ndf3 Bdf5 Bf4 Nh6 g8Q Bfe6 g7 Be4 g6 Qd7 Qf8 Bb1 g8Q Bf7 g7 Bfg6 Qf6 Bge4 c6+ Kb6 Ke5 d4 Nd5+ Ka6 Ne3 Qh3 Kd6 d3 Kc7 d2 Be5 Bbc2 Qb1 Nf5 Qgf8 Bcd3 g8N Nh4 Nh6 Ng2 Nhg4 Bef5 Nf2 Bde4 Nhg5 Rh6 Nh7 Nd7 Q8h8 Nc5 Bg3 Nd3 Be5 Rb8 Bd6 Rb5 Be5 Rd5 Kb8 Nb4 Ka8 Rd7 Bb8 Nc2 Qb3 Nb4 Rf1 Na2 Qb1 Rd8 Ne2 Rd7 Rhg1 Ne1 Rg5 h1R Neg1 Ng2 Ne2 Bg6 Rc5 Rg1 Rc1 Re1 Neg1 Bgf5 Rd1 Re2 Rf1 Re1
4R3/Kn1N3k/1N2r1pN/2rpRb2/2Nq2R1/BPqBQ3/2Q1PnP1/2N2br1 w - - 0 1 illegal: Other
2QQ1q2/7n/qBN2P2/r1bQpn2/4R3/1p2Q2P/1QPN2rk/K2RBBbb w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb2 Ke5 a4 b5 f4+ Ke4 c6 d5 c7 g5 a6 g4 a7 b4 h6 g3 h7 e6 f6 g2 h3 d4 a5 b3 f7 d3 f5 d2 a6 Kf4 Ra4+ Kg3 Re4 Qe8 Nf3 g1B Ne5 Qc6 Qe1+ Bf2 Ka1 d1Q Nd2 Ne7 Qe3+ Qf3 f6 Rg8 h8Q Bb7 c8Q Nd7 Qd8 Qb5 Nc6 e5 Ba3 Rg7 Bc5 Bg1 Bb6 Nf5 Qc8 Be7 f8B Ba3 Bb4 Nf8 Qg8 Qd3 Qd5 Nh7 Qdd4 Rg5 Qb2 Qd8 B4a5 Qf8 Qd8 Bf2 Rg1+ Kh2 Qd5 Rg2 Bb4 Rd8 a8Q Qe2 a7 Qa6 Qc8 Rd7 a8Q Rd8 Qf7 Rd5 B4a5 Rc5 Qd5 Rb5 Bb4 Rc5 Qcd8 Ra5 Qac8 Ba8 Bc4 Bb7 Rd1 Bg1 Bf1 Nd4 Qc4 Qf7 Nf3+ Kg3 Na7 Qf8 Rf4 Rf2 Be1 Nf5 Nd2+ Kh2 Rh4 Bf3 Nc6 Bh1 Re4 Rg2 Qcd5 Bc5+
qbN2B2/1BN2n1r/1P3rkN/2R3Nb/Q1qPr2p/n1p5/2PQ3Q/RK2N3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 exd3 Bb7 d4 Ba6 d5 Bc8 d4 c5 Kd2 h5 g4 a5 b4 f5 e6 c4 e7 Kf7 e8N a4 g6+ Ke7 g5 a3 d6+ Ke6 b6 f4 b5 Kf5 b7 f3 b6 a2 d7 f2 g7 Bb4+ Nc3 Ra4 g6 Ba3 Nc7 Bf8 Nf3 Ra6 Bg2 f1Q Ba3 Nc6 Kc1 Ra5 b8Q Nh6 g8N Bd6 g7 Re5 Ne4 c3 Neg5 Nf7 Ne1 Qc4 Qd2 Re4 Nh6+ Kg6 g8N Rh7 Bb4 Be5 Bf8 Na7 Rf1 h4 Rf5 Qe8 d8Q Nb5 Qd7 Bd6 Rc5 Bb7 Qa7 Qa8 Qh3 Bc6 Qa4 Be8 Qh2 Be5 Rb1 a1R Bh1 Re2 Bb7 Re4 Nce6 Bb8 Ne7+ Kf6 Nc8 Kg6 Qb3 Ra7 Ra1 Ra5 Kb1 Ra7 Bd5 Re7 Nc7 R7e6 Qa4 Rf6 Nge6 Bd7 Ng5 Bg4 Bc6 Bh5 Bb7 Na3+
1q1q1Nb1/1r1B1N2/1PKp2p1/3R2P1/1nN1n3/r3RQq1/1NB2PN1/k3b1BQ w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 f5 exf5 b4 h4 g6 h5 b3 h6 Nc6 axb3 Nb8 b4 Qb6 b5 Qa6 Bc4 Qf6 Bf1 Qg7 hxg7 Ba6 Kd2 Bb7 Ke1 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Kd5 h5 g4 a5 c4 e4 b4 e3 c6 h4 g5+ Kf7 c5 a4 b6 d6 f6 a3 b5 h3 c7 e2 b7 e1Q c6 a2 Nd2 h2 Nh3 Na6 b8Q Qe3 Nc4 Bb7 c8B Qe7 Bd3 Rh5 Re1 h1Q+ Qf3 Ra7 Qa8 Rh7 Re3 Qe8 Nb2 Qd8 Bd7 Qg1 Bc2 Qg3 Nf4 Bc8 Rb1 a1Q c7 Be7 Kc6 Nb4+ Kb6 Qa4 Ng2 Qb3 Ra1 Bb7 Ra5 Bd5 Qc6 Ra8 Kb7 Bc4 c8N Ra6 Nb6 Be6 Ra1 Ra3 Bd2 Bd5 Rd1 Bc4 Bc3 Be6 Be5 Bd5 Be8+ Ke6 f7 Nf6 g8N Ne4 Nh6 Bf6 N6c4 Rg7 Bf4 Bc3 Be5 Be1 Bd7+ Ke7 f8N Bg8 Rd5 Rf7 Be8 Rh7 Nf7 Rg7 Nh7 Ke6 Bd7+ Ke7 Qb6 Nc6 Na4 Qf4 Nh8 Bd2 Nf8 Qg4 Bh2 Qg3 Bc8 Qb1 Nd7 Ke6 Qd4 Bc3 Qdd1 Ba5 Qh1 Be1 Bg1 Qb4 Rd2 Re7 Nf7 Qb2 Bd3 Kd5 Rd1 Kd4 Rd2 Nb4 Bc2+ Nd3 Kc6 Qb3 Nf8 Ra7 Nc5 Kc3 Bd7 Qb4 Nb6 Kb2 Nca4+ Ka1 Nb2 Qa5 N6c4 Qb8 Qf5 Qad8 b6 Rb7 Qf3 Nc1 Rd4 Nd3 Rd5 Nb4+
1K2b1q1/2NR4/1p1B1n2/PnNBBq1B/1k1q2P1/rpbP2Q1/R5r1/RQ2B3 w - - 0 1 illegal: Other
b1N1R2r/2B3Nn/P1p3q1/2Q5/QKrQPP2/4pq1Q/1nB1Qb1R/1rkN4 w - - 0 1 illegal: No proof kernel
4BBQb/1R4n1/p2R2KQ/2PP2r1/q6q/Rp1NR3/qnP2Nk1/1b1B1R1r w - - 0 1 illegal: No proof kernel
1k2Bbb1/2NQ2PN/4rn2/1qr1Bnp1/1pRPqN2/NR1B2K1/1Q1P4/2N4r w - - 0 1 illegal: No proof kernel
1bNQ3n/1r1Nr1P1/3p1b1q/1BpB3N/1k1PQR2/7n/1B2PrNq/KN5R w - - 0 1 legal: proof: b4 e5 c4 b5 cxb5 g5 a4 e4 h4 d6 hxg5 e3 a5 Nd7 b6 Nh6 a6 Nf5 b5 Bb7 axb7 Nh6 fxe3 Ng8 e4 Nb8 e5 Ke7 Qb3 Kd7 Qd1 Ke8 g4 Kd7 d3 c5 Kd2 a5 Kc3 f5 Kb2 h5 g6 a4 g5 f4 g7 a3+ Ka2 f3 g6 f2 Qc2 h4 Nf3 h3 Ne1 h2 Bb2 Ne7 g8N Nd5 g7 Nf4 Ne7 Nh3 Nc8 Qg5 Ng2 Nc6 b8Q Ra7 b7 Qh6 b6 Ne7 e6+ Kc6 d4 Kb5 Qc7 Ng6 b8N Rb7 e7 Kb4 e8B Be7 Qe4 Bf6 Bb5 Re8 Qd8 Nh8 Nd7 Re7 Qf4 Bh4 Nf6 Bg5 Nh5 Bf6 Rg1 h1Q Qe4 Qh2 Rh1 Rbd7 b7 Rc7 b8N Rcd7 Ne3 Rb7 Bg2 f1R Nd7 Rf2 Nc3 Ra7 Raf1 Rb7 Ka1 a2 Bc1 Rf5 Nb1 Rf2 Kb2 a1B+ Ka2 Rf5 Rf4 Bc3 Bb2 Bd2 Ka1 Be1 Rh4 Rf2 Rg4 Kb3 Bf3 Ba5 Ng2 Bc7 Rf4 Bb8 Qe5 Qg6 Bd5+ Kb4 Qe4 Qh6
1K1k4/B4qPR/PNB1rqb1/p1b2np1/B2nQ1Q1/3B1R1r/4PrR1/B1N5 w - - 0 1 illegal: No proof kernel
3rRN2/B1n1b1pK/1R1r4/q1qBQb2/pPP1n3/4Q2P/N1n5/1NNQNk2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 c4 a5 b4 a4 b6 e6 c6 d4 b7 d3 c7 d2 h6 Qe8 h7 Qb5 Ne2 Qa5 Bg2 Ra7 Bd5 Na6 b8Q Bd7 c8N Qb6 Ne7 Bc6 Qe5+ Kf7 Kg5 Nc5 f4 Bb7 f6 Qa6 f5 Qa5 h3 Bc8 Rg1 Bd7 Bb2 Bc8 Nc1 Ra6 Bd4 Ne4+ Kh5 Rc6 Rg6 Rd6 Ba7 Bd7 Ra3 Qc5 Re3 Bc8 Nc6 Ne7 Na2 Rg8 h8Q Qa5 Qg4 d1Q Qh6 Qd4 Qd1 Qdc5 Nd4 Bd7 Nf3 Rh8 Ba8 Nd5 Ne1 Nc7 Bd5 Be7 Re2 Rd8 Qe3 Kg8 f7+ Kh7 f6 Bc8 Q5g3 e5 Qh2 Bf5 f8N+ Kh8 Nd7 Kh7 f7 Qcb6 Rg5 Qbc5 Kh4 Kh6 f8N Nf2 Qhf4 e4 Qe5 Rc6 Kg3 Rd6 Rg6+ Kh5 Kf4 Kh4 Rf6 Qc6 Nc5 Qcb5 Nb3 Qc5 Q3c3 e3 Nbc1 Ne4 Qcd4 R6d7 Rb6 Rd6 Rg2 e2 Qe3 Bd7 Rg6 Bc8 Re6 Bd7 Nc2 e1N Kf5 Bc8 Kg6 Bd7 Nd4 Nc2 Kh7 Bc8 Qf5 Bd7 Nf3+ Kg3 Qe5+ Kg2 Ne1+ Kf1 Qdd4 Bf6 Re8 Be7 Qd1 Bf5+
1R5B/2K1Bp1n/4BPNn/kPB5/3nqP2/2rpr2B/1b1Qb1Q1/1NNq2R1 w - - 0 1 legal: proof: d4 h5 e4 c5 dxc5 b5 a4 h4 axb5 h3 f4 Qb6 gxh3 Qd6 h4 Qe5 h5 Qf5 exf5 Bb7 Kd2 Ba6 Ke1 Bc8 Kd2 Kd8 Kd3 Kc7 Ke4 g5 Kd5 e5 h4 a5 c4 d6 b4 g4 b6+ Kb7 f6 Ka6 h6 a4 h7 a3 b7 a2 c6 e4 h5 g3 b5+ Kb6 c5+ Ka5 c7 g2 c6 e3 h6 e2 Ba3 e1Q Bc5 Bf5 c8Q Qe3 c7 Nc6 b8B Bg4 Qb7 Be2 c8B Nd4 Be6 Ra7 Qc6 Rc7 Bba7 Qd3 Ba3 Qc2 B7c5 Qa4 Qd2+ Qb4 Nf3 g1N Ne5 Ngf3 Nd3 Ng5 Rg1 Re7 Bfh3 Re8 Bc8 Re3 Bce6 Be7 Nc3 Bf8 Rae1 a1Q Nc1 Qab1 Qb7 Qc2 Nb1 Qd1 Qc6 Be7 Qb7 Nb3 Kc6 d5 Kc7 d4 Qg2 d3 Rh1 Nd4 Reg1 Bf8 Rh2 Ne7 Rhh1 Nef5 Be7 Rg8 h8N Nh7 Ng6 Rh8 Qc2 Qc4+ Bac5 Qd5 Rh2 Qe4 Rhh1 Ng5 h7 Nh6 Qb2 Rg8 h8B Nh7 Ne5 Rg5 Ng6 Rd5 Bhf5 Rd6 Rh5 Rd5 Bh3 Rd8 Rd5 Ra8 Rd8 Rc8+ Kd7 Rc6 Rb8 Ra6 Kc7 Ka4 Bd8 Ra8 Bb6 Ba3 Qd2 Bb2 Be7 Ra6 Ba7 Rc6+ Kd7 Rc4 Bac5 Rc3 Kc7 Ka5
1nn1B3/1rB1pP2/4q3/B2QRbNP/2K2k1p/bR1qNB2/N2B1PQ1/r1n5 w - - 0 1 illegal: No proof kernel
kNNQ1nK1/N2p1r1N/1P2Rb1p/3rBn1Q/1q6/PB1P2N1/2B1q2b/R1q5 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 Ba6 c4 Bb5 cxb5 Ra7 Rh3 Ra6 Rh1 Ra8 Ke2 e5 Kf3 c5 Kg4 e4 Kh5 e3 g4 e2 f4 e1Q a6 h6 Kg6 c4 b6 c3 a7 c2 f6 b3 a3 b2 f5 Qe4 f7+ Ke7 Nc3 Kd6 Nb5+ Kc6 Ne2 Kb7 Ng3 b1Q Bd3 Bc5 Kg7 Qeb4 f8Q Be3 f6 Qde7+ f7 Qbe4 g6 Nc6 g5 Qbb4 Qh5 Na5 Qd8 Qbd6 Re1 Nf6 Bb2 c1B Bc2 Q7e6 f8N Qe6d5 d3 Nb3 Be5 Qdc4 Nh7 Bd4 Re3 Rc8 a8N Rc5 Na7 Rd5 Nc7 Rf8 Na6 Qdb4 Nb8 Rf7+ Kh8 Qg2 g7 Ka8 g8B Qe2 g6 Bdb2 g7 Nd4 Re4 Bf4 Re3 Nf5 Re4 Re7 Be6 Qcc5 g8N Rf7 Ne7 Qg1 Nec8 Qc1 Ng5 Nh7 Kg8 Nf8 Nh7 Rd4 Beb3 Rd5 Bd4 Bc3 Re6 Bb2 Be5 Bc3 Nh1 Bh2 Ng3 Bb2 Bc7 Bg7 Be5 Bf6
2n1BR2/1b1p1B1r/1p1N2Q1/1r2b1qn/k2PQPQR/1q1N1KqB/3BP3/B7 w - - 0 1 illegal: No proof kernel
6BR/2P5/1N1Nn1B1/1K1r2Pp/Q4Rqp/Nb1rB2N/1NP1kb2/2q2nQq w - - 0 1 illegal: Other
2n5/1qP1N1Q1/rqr1k2N/1P1R3N/1B3Q2/bKnppP1N/b1rB3N/4R2B w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 a5 h4 e5 b4 g5 h6 d5 f3 d4+ Kb3 d3 c4 g4 b6 g3 c6 g2 h5 e4 h7 e3 h6 Be7 f6 Ra7 b5 Rd7 c7 Bc5 b7 Ba3 c5 Qe7 c6 Ke6 f7 Bb4 f8B Qh4 Bd2 Rd4 Nh3 g1Q Bg2 Nd7 b8N Nb6 Nd7 Na4 Nf6 Rd6 Nh5 Ba3 Qe2 Bb7 c8N Qd8 Ne7 Nc3 c7 Qb8 Rh2 Rc6 Bh1 Qg6 Rg2 Bc8 Rg5 Qb7 Qh2 Qf6 Rf5 Qd4 Rd5 Qdb6 Qf4 Bd7 Be1 Be8 Nd2 Bf7 Ng6 Ne7 Nf1 Nc8 Bb4 Rg8 Ne7 Rg2 h8Q Rc2 h7 Bg8 Qg7 Bf7 h8N Bg8 Rc5 a4+ Kc4 Bf7 Bd2 Bc1 Qgf6+ Kd7+ Nd5 a3 Qg7 a2 Nh2 Bb2 Rb1 a1R Rf1 Ra6 Re1 Re6 Ne7 Ba3 Rg5 Bg8 Nf7 Rc6+ Rc5 Nd5+ Kd4 Nc3 Nh6 Ba2 Qh7 Rb2 Qg7 Bb1 Kc4 Rc2 Kb3 Ke6 Rd5 Ba2#
3b1Qq1/1BP5/BBnP2p1/2q1kP2/p4r1r/3RNbq1/K1NB4/nQ2R1RB w - - 0 1 illegal: No proof kernel
bQ3NR1/Q1P1k1nq/P1r5/N2KN1b1/1Nnp1qBB/RNP4p/R3r3/5q2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 h5 Kd3 d5 Kd4 b5 g4 h4 f4 h3 a4 e6 a6 b4 c3 b3 c6 b2 g6 Rh7 a5 Rg7 g5 Be7 f6 Rf7 a7 Qc7 a6 Qb7 g7 Nh6 g8R+ Bf8 g6 Kd8 c7+ Kd7 f5 Rg7 f7 Bb4 f8N+ Ke8 f6 Be7 Bg5 Rh7 g7 Rh8 Be2 Nd7 Ra3 Ne5 Bg4 Nc4 Bh4 Qb4 Rh2 Bb7 Nd2 b1Q Ngf3 Qh7 Qg1 Rb8 Ne5 Ba8 Nd3 Rb6 Nb3 Rc6 Rha2 Qa4 Nb4 Nf5+ Kd3 e5 Ng6+ Kd7 f7 Bg5 f8N+ Ke8 Qb6 Kf7 Qb8 e4+ Kc2 e3 Ne5+ Ke7 Kd3 d4 Ke4 e2 Kd5 e1Q Nc2 Qd2 Nb4 Bb7 a8N Qf4 Nb6 Ba8 Qa7 Ke8 Nbd7 Ke7 Na5 Qd1 Nc5 Qdf1 Ncb3 Qg6 Qb6 Rh6 Qa7 Qh7 Rh8 Rhe6 g8Q Qa1 Nfd7 Qb1 Qgb8 Ng7 Rg8 Qbc1 Nf8 Qcf1 Ned7 Re3 Ne5 Re2
1K3Q2/Pr1kr2p/1P4Rq/2q1bn1P/2NBR2p/nQ4QB/2B1B2N/3b1n1B w - - 0 1 illegal: Other
1Q2r1b1/P1QP1RNR/B1P1pq2/pq4B1/N5kn/1R2b3/Rbr5/B1Rn3K w - - 0 1 illegal: No proof kernel
3K2BR/p5BN/3P1rB1/2rQPb1Q/r5qq/2PN1p1n/BR3n2/kBb1N3 w - - 0 1 illegal: No proof kernel
rr1R2b1/1k3B2/2n1N3/1r3Rqr/1Pp1PNQB/5Rb1/QP2B1p1/1BK3nB w - - 0 1 illegal: No proof kernel
4bRRr/1B1qB3/1B2nb2/1rQ1np1B/PPP2NN1/pN1B4/k7/4nKQn w - - 0 1 illegal: No proof kernel
2n1R3/Q2q1n1b/1NpN4/P1PK4/b1RR2Pr/bRb4Q/p5R1/2kr1NBB w - - 0 1 illegal: No possible last move, all moves rejected
1K1N1n1q/Q4R1B/1P2Nb2/P2n3N/4b1R1/PNr1Br2/p1kpnQN1/3n1R2 w - - 0 1 illegal: No proof kernel
k5B1/3n3P/r3pB2/2b5/n1B2QqP/QQNpb1P1/3Nbr1b/RRKB2B1 w - - 0 1 illegal: No proof kernel
QB4RN/3r1P2/qNb1r3/2p5/B1bPB1bn/k1P1BRn1/1NBKp3/b2Q4 w - - 0 1 legal: proof: g4 a5 h4 g5 hxg5 d5 b4 f5 gxf5 d4 bxa5 d3 exd3 Nh6 d4 Ng8 d5 Qd7 Bd3 Qd6 Bf1 Qd8 d4 Kd7 f4 Kd6 a4 b5 a6 h5 g6 c5 c3 e5 f6 e4 a5 h4 g7 h3 f5 b4 a7 e3 f7 b3 f6 h2 a6 b2 Nh3 Rh6 Nf4 Qe8 Bd3 e2 Kd2 Qe7 Rg1 h1B Bc2 Rh7 Nd3 Nc6 Na3 b1B Nb2 Nh6 g8B Ne5 Nac4+ Kd7 d6 Kc6 d7 Kb5 d8N Nf5 Rf1 Bc6 Nb6 Ba2 Rf3 Bc4 Rb1 Rb8 a8B Qe6 a7 Ng3 Ra1 Be7 f8B Ng6 Nf7 Nh4 Nh8 Qd6 Bf7 Bg4 Be8 Bd8 Bb7 Rd7 a8Q Be7 f7 Bg5+ Re3 Qe6 Bd6 Rbd8 Ra3 Re7 Bb8 Rdd7 Ke1 Qd6 Rf3 Re6 Be3 Bf4 Bf2 Bc1 Be3 Be4 Bd5 Qc6 Ra2 Qc8 Ra7 Qa6 Rc7 Ka5 Bb7 Bc6 Rc8 B6b5 Bbe4 Bc6 Nd3 Bb2 Kd2 Rde7 Bd7 Ba1 Rf8 Kb5 Be8 Rd7 Rg8 Bb3 Nc8 Ka4 Nb2+ Ka3 Nb6 Rb7 Bd7 Bc4 Be8 B6d5 Bb5 Bc6 Bba4 Rd7
QBb3n1/K3P3/qn1B3R/1rNb1RNr/1b1PbQ1p/P3p3/1R2B3/3Bk1B1 w - - 0 1 illegal: No possible last move
qbbr2QB/1R2P2n/2P1RR2/2k5/K1B1p1P1/1RB1N1r1/1p1b3R/1n1Nb1Q1 w - - 0 1 illegal: No proof kernel
3n1rN1/2QPpQ2/qp1N3n/QBPb4/1P1N4/R1r1kb2/1QQR4/BK1n3n w - - 0 1 illegal: No proof kernel
5rr1/2Bp1q2/2p1PnbP/P1rR4/1kBN1Q2/1N3rR1/3b1N1R/1RKn1QR1 w - - 0 1 illegal: No proof kernel
2b2Q1K/3p2bP/b3P3/3RN1R1/Br1p3N/kr2NQ1B/b2B1Pnq/1Bn4B w - - 0 1 illegal: Other
R1Q1Bn2/Q3Rn2/1PqR2Pb/K1p1B1rN/2PR2r1/4N3/p3kqq1/3rB1R1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Be7 g4 Bb7 h5 Be4 Ra5 Bd3 Ra1 Bg6 hxg6 Bf8 Kd2 Ke7 Kc3 Ke6 b4 h5 e4 d5 b6 f5 b7 a5 b5 a4 g7 c6 b6 a3 g6 h4 g5 f4 Bd2 a2 Bb5 h3 Ne2 f3 Be1 h2 Rg1 h1R Ng3 f2 Nh5 f1Q Nd2 Nd7 b8B Rh2 Nc4 Rh7 Ne3 Nh6 g8Q+ Nf7 g7 Rg2 g6 Nc5 Kb4 d4 c4 d3 Qa4 d2 Rd1 Rg4 Qa7 Qh4 Ka5 Qhf2 Qh8 Q1g2 g8R Bh6 Rd8 Rg5 Rd4 Nd7 Qc8 c5 Bc6 Ke7 Bc7 Nf8 e6 Rb8 e5 Ra8 Qb7 Rd8 Be8 Rd6 Qc8 Qc6 Rb1 d1Q Rc1 Qg4 Rcd1 Rd7 R1d3 Qgg2 Rd6 Nh8 R3d4 Rf7 Bb8 Rf4 Bc7 Nf7 Bb8 Nh7 Bc7 Rfg4 Bb8 Kf8 e7+ Kg8 e6 Nf8 Bc7 Rd8 Bd7 Kh8 e8R Kg8 Re7 Kh8 Ng3 Kg7 Be8 Kf6 Nh5+ Ke5 Red7 Re4 e7 Rh4 Bb8 Rhg4 Rb7 Rd7 Bc7 Rd8 Rb8 Rd7 Ra8 Qe2 Rf6+ Qd6 Rdf4 Nh8 Bf7 Qef2 Bb8 Qc7 Rc6 Rd1 Rd4 Qd6 e8R+ Ne6 Rg8 Nf8 Be8 Qc7 Rg7 Qd6 Rd5+ Ke4 Re7+ Kf3 Rd4 Nf7 Bc7 Qf6 Be5 Ke2 Rce6 Q6f3 Red6 Qc6
6BQ/7P/1p2Nrk1/1NN1Kbnn/pB1q1r2/P1PRN3/2N3qq/R1n1QR2 w - - 0 1 legal: proof: g4 h5 gxh5 e5 e4 c5 b4 g6 bxc5 Be7 d4 Nf6 f4 Ng8 f5 Qb6 f6 Kd8 fxe7+ Kc7 dxe5 Nh6 e6 Ng8 e5 Kc6 Bh6 Qc7 Bc1 Qd8 Kd2 Kd5 Kc3+ Ke4 e8N Kf5 Kd4 a5 h4 d5 c6 a4 a3 f6 e7 g5 h6 b6 h5 g4 c7 g3 e6 g2 h7 Ba6 c8R Bd3 h6 Na6 Nc7 Qe8 Bd2 Qh5 e8N Qh2 e7 Nc5 Nb5 Kg6 Bb4 f5 c3 f4 Ned6 f3 e8N f2 Ng7 Nf6 Ne6 Nh5 Ne2 g1N Nb7 Rf8 h8Q Rf4+ Ke5 d4 h7 Ne4 Qe1 Ng5 Nd2 Bf5 Nc4 d3 Rd8 d2 Rd3 d1Q Ne3 Rf8 N2d4 Rf6 Nbc5 Ne2 Ndc2 Nc1 Bg2 f1Q Bd5 Qfg2 Rf1 Rf8 Nec7 Rf6 Bg8 Qdg4 N7e6 Qd1 Rd8 Qd3 Rd7 Qc4 Rd3 Qd4+
B1q3B1/Q2P1N2/2b3k1/2Pr1N1q/1p4B1/pK1bQ3/Pn2nR1q/B3bBNR w - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 c5 exd5 c4 h4 c3 bxc3 Bf5 c4 Be6 c5 Bc8 g4 a5 g6 b5 h5 Ba6 g7 Bc8 g5 Ra6 Rh2 Nh6 Rh1 Rg6 hxg6 Ng8 c4 e5 d4 h5 Kd2 f5 Kc2 h4 c6 a4 d6 f4 d5 e4 c7 e3 Bg2 a3 Nd2 h3 Ne4 e2 Qe1 f3 Kb3 h2 Bf1 f2 Bb2 Nh6 g8B Na6 g7 Bd7 c8B Bc6 g6 Nb4 Bg4 Qc8 Ng3 Nd3 Nf5 b4 c5 Be7 Qc1 e1Q Qe3 Qe2 Rb1 Qf3 Ba1 Nb2 Bh7 Qh3 g8B Qh5 d7+ Kf8 d8N Bh4 d6 Bg3 Bfh3 f1B d7 Bd3 Rf1 Be1 Bd5 Rg8 Rf2 Rg7 Bdf3 Re7 Nf7 Re5 Bg8 Rd5 Ne7 Kg7 Bf1 Kf6 g7 Nf5 B3g2 Be2 B2f3 Ng3 Nf5 Kg6 Be4 Bd3 Bef3 Rd4 Be4 Ne2 Bef3 Bcb5 Ba8 Bc6 Bh7+ Kf6 g8Q Rd6 Qge8 Rd5 Bg8 Kg6 Q8e4 Bb1 Qe5 Bd3 Qb8 Be4 Qa7 Bd3 Nh3 Nc4 Rg1 h1Q Bf3+ Qg2 Rh1 Qg1 Bg4 Qh2 Ng1 Nb2
Rq2RqRr/3NR3/PPBR4/p4Qbp/1k5n/1n4QP/1N5r/1rB1KnQ1 w - - 0 1 illegal: No proof kernel
2Q3r1/2brp1p1/Rq2n1K1/3qPQR1/R1R2nQP/N2q1P2/1n3RNB/kB6 w - - 0 1 illegal: No proof kernel forced: wxDB
4rk1n/P3Nr2/Q2pRKb1/R1Bp1b2/2rNNb2/1P1P1BN1/1QqQ2q1/2N5 w - - 0 1 illegal: Other
7r/1PK3QR/1NR2nQn/5p1n/4Pk2/1BrB1bp1/qB2BPqB/5qRN w - - 0 1 legal: proof: g4 b5 d4 a5 b4 e5 bxa5 h5 gxh5 b4 dxe5 b3 c3 Bb4 cxb4 Ba6 Qd2 Bb7 Qd1 Bc8 Kd2 Ke7 Ke3 Ke6 Ke4 c5 h4 g5 a4 d6 a6 b2 a7 f6 a5 c4 a6 c3 b5 c2 h6 g4 b6 Qe8 h7 Bd7 h5 Ba4 h6 Qd7 Nc3 b1Q Qd4 Ne7 Bf4 Qd1 Bh2 c1Q Nd5 Qg5 Rc1 Ng6 Rc6 Rg8 h8B Qb3 h7 Qh4 e3 Rc8 Ne2 Qe7 Ng3 Nd7 Rg1 Nf4 Be2 Qg5 Nh1 Nh5 Qc3 Rab8 a8B Qa2 a7 Bd1 Kd4 Kf5 e6 Qeg7 e7 Qh4 e8B Qh3 Bf7 Qf1 e4+ Kg5 Bb7 Qg8 a8R f5 Ra7 Ndf6 Qg3 Qg6 Bd3 Bf3 Bba6 Rc7 Bg7 Rh8 Be6 Rcc8 Re7 Rc7 b7 Rcc8 Nb6 d5 Ke5 d4 Be2 d3 Kd6 d2 Bad3 d1N Bb3 Ne3 Rd7 Ned5 Rf7 Ng8+ Kd7 Nh6 Bb2 Ndf6+ Kd6 Ra8 Kc7 Ra4 Qg2 Rc4 Rd7 Rc3 Rf7 Ra8 h8Q Rd8 Qg7 Rh8 Ng3 Kf4 Rd7 Qh7 Qg6 Qg8 Rh7 Qa6 Nh1+ g3 Qh3 Qg2 Qg7 Qgc4 Qg6 Qa2 Qhg4+ Ke5 Qg7 Qca6 Q4g6 Kf4 Bb1 Qd3 B1c2 Qd1 Bcd3 Qdf1
1qBQ1n1q/5p2/1Pbp2Q1/rRPbQ1bn/1BB1N2N/qQ1P4/1R6/2k2KQ1 w - - 0 1 legal: proof: f4 c5 b4 a5 bxc5 h5 a4 e5 fxe5 b5 g4 b4 gxh5 Ra6 Ra2 Rb6 Ra1 Rb5 axb5 Ba6 Nh3 Bb7 Ng1 Bc8 c4 Ke7 e4 Ke6 h4 g5 b6 g4 c6 a4 c5 b3 c7 d6 h6 g3 h5 a3 h7 a2 h6 g2 Nf3 g1Q Nh4 b2 Qb3+ Kd7 e6+ Kc6 e5 Ba6 c8B Nf6 e7 Ne8 e6 Bb7 Nc3 b1B Rh2 Bg6 Ba3 Nd7 Rb1 a1Q Ne4 Qh1 Bb4 Nef6 e8Q Nh5 e7 Qa3 Re2 Rg8 h8Q Kb5 h7 Bd5 Qe5 Bh6 h8Q Bg5 Qh6 Qc7 Qeg3 Qb8 Qd8 Nf8 Qg1 Bf5 e8Q+ Bd7 Qee6 B7c6 Qe5 Qh2 Qg6 Rh8 Qa2 Ka4 Rf2 Qh3 Bc4 Qc3 Kf1 Rg8 Qeh2 Qh8 d3 Qc7 Qe7 Ba8 Bb7 Ne6 Bd2 Rc8 Qb2 Nf8 Qd8 Rb8 Bc8 Bac6 Qa2 Ra8 Rb5 Qb8 Qe5 Ra5 Qc2+ Qb3 Qcc3 Ka3 Qb4+ Ka2 Qa4+ Kb1 Bb4 Kc1 Rb2 Qa2 Qb3 Qa3
B1n2kr1/5PpK/7B/qB5p/1bPR1B2/1NnR2PQ/1Rq1b1NB/n3Q1b1 w - - 0 1 illegal: No proof kernel
5B2/2rp1q2/1nBbr1Q1/1r2nRRN/BK4R1/p2PQq1B/4nP1P/k1B4N w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 Ba6 a4 Bb5 axb5 Rh7 Ne2 Rh6 Ng1 Rh8 c4 Kf7 c6 Kf6 h6 Ke5 c7 Kd4 c8B e5 c5 g5 c6 a5 h7 a4 f6 a3 d3 b3 Kd2 g4 c7 g3 b6 e4 b7 b2 f7 g2 Qe2 Bc5 f8B Be7 Qe3+ Kd5 Kc3 Nf6 Ne2 g1N Ng3 Ra7 Nd2 b1Q Nh5 Nc6 b8Q Qa2 Qbb6 Ne5 Ba6 Bd6 Bh3 Qa8 c8B Rb7 Bb5 Rc7+ Nc4 Rc5 Ba4 Ne2+ Kb4 Rg8 h8R Rc7+ Kb5 Rg5 Rg1 Rf5 Rg5 Qb7 Qg3 e3 Nd2 Qa8 Qc6+ Kd4 Nf1 Qf7 Bb7 Nd5 Rb1 Nb6 Rhg8 Rc8 Qcf3 Kc3 Bc6 Rc7 Qgg2 Qb7 Nfg3 Qa8 Rb3+ Kc2 Rc3+ Kb1 Rc5 Ka1 Kb4 Qb7 Nh1 Qa8 Bcb5 Qb7 Qfg3 Qf3 Qg1 Nc3 Q1g2 e2 Bc6 e1R Qf4 Ne2 Qe3 Rf6 Rf5 Re6 Qg6 Rd1 Qgh6 Rd2 Rg4 Rc2 Qg6 Rc4+ Kb3 Rc2 Rd5 Rc5 Rfg5 Nec4 Rdf5 Ne5 Kb4 Rb5+
Q2b3q/1p2pNP1/nq5q/1N1B1Q2/2rRB1N1/1P2Kb1k/1BB1P3/1RBr3b w - - 1 2 legal: proof: g4 d5 h4 a5 c4 g5 hxg5 a4 cxd5 a3 f4 Nd7 f5 Ra5 f6 Ra6 g6 Ra5 Qa4 Ra8 Qa7 Nc5 g5 Ne6 Nxa3 Qd7 Nb1 Ng7 fxg7 Qd8 Kf2 Kd7 d4 c5 a4 f5 d6 Ke6 b3 h5 d7 c4 a5 h4 a6 h3 d5+ Ke5 d6 c3 Ra4 c2 Bg2 f4 Rd4 Kf5 Nf3 Kg4 Nc3 h2 Nb5 Rb8 Qc5 Nf6 g8B Nd5 a7 Qb6 d8N Bg7 a8Q Rh4 d7 Be5 g7 Nc7 g6 Na6 Bh7 Bc7 Nf7 Bd8 Rhd1 h1B g8B Qd6 g7 Qb6 Bb2 c1Q Bc2 Qd2 Rb1 Qc1 Ne1 Qd2 Bge4 f3 Qe5 Kh3 Ng2 Qdh6 Ne3 Rg4 Qc5 Rg1 Ng4 Rd1 Qe5 Qh8 Ke3 f2 Qe6 f1Q Qg6 Qff6 Qf5 Bc7 d8B Qfh6+ Qf4 Bd7 Qg5 Bc6 Qf4 Be5 Bc7 Rc8 Qg5 Bh2 Bf4 Bd5 Qf5 Rc4 Nd8 Bc6 Bgd5 Bf3 Bg5 Bc7 Nf7 Bd8 Kf4 Qe8 Be6 Rc5 Bed3 Bg2 Bec4 Bcf3 Be4 Qeh8 Bcd5 Rd2 Ke3 Rc6 Kf2 Rc4 Bf4 Rd1 Bfc1 Qhf6 Ke3 Bh1 Qb8 Qfh4 Qa8 Q4h6+
Nk2Nb2/pq6/1r1N2RB/3nb1KN/nQ3P2/P1qR2pB/bQ3NP1/2Q1n3 w - - 1 2 legal: proof: e4 d5 h4 b5 c4 f5 exf5 g5 cxd5 c5 b4 g4 bxc5 Na6 Bd3 Rb8 Bf1 Rb6 Bb2 Rg6 Bc1 Rg5 hxg5 Bh6 Bb2 Bg7 Bc1 Bf8 Ke2 Kd7 Ke3 Kc7 Kf4 h5 d4 b4 d6+ Kb7 d5 g3 f6 e6 c6+ Ka8 g6 h4 d7 e5+ Kg5 e4 g7 e3 a3 h3 d6 e2 c7 e1B Bb5 h2 Nh3 b3 Nf4 b2 Nh5 Ba5 Nc3 b1Q Ne4 Qe7 d8Q Qf7 d7 Qc4 f7 Nb8 Qf6 Qca2 d8N Bh3 c8N Qd3 Qb2 Nd7 Ncd6 Rh7 Ne6 Ne7 g8N Nc5 Ngf6 Qab3 Bd7 Rh6 Nfe8 Qdc3 N6c7+ Kb8 Na8 Bc7 f3 Qb5 Nf2 Be6 Qe1 Bc4 Bh3 Ba2 Bd2 Qb6 Rd1 Nd5 Be3 Qbb3 Rd3 Na4 Qec1 Qb7 Re1 h1N Bd2 Bb6 Re6 Bd4 Rg6 Be5 Nfe4 Bfg7 f8Q Nf2 Qf4 Bf8 Qg4 Nd1 Nf2 N1e3 Qgb4 Nc2 f4 Qc4 Bc3 Ne1 Bd4 Beg7 Bf6 Qc3 Be7 Bd4 Bf6 Be5 Bg7 Rh7 Bh6 Re7 Nb5 Re6 Nbd6 Rf6 Nc4 Rc6 Ncd6 Rb6
1B3N2/n1N2pN1/1qQnN2r/PB1b3r/Rn1Pq2k/1RNrQR2/4KPp1/8 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 h5 bxa5 h4 e4 h3 d4 e6 e5 Bd6 exd6 Nd7 gxh3 Qg5 h4 Nb8 h5 Qd8 h4 b5 a4 c5 d7+ Ke7 d6+ Kf6 h6 g5 a6 e5 a5 b4 h7 e4 a7 g4 h5 c4 h6 e3 Qa4 Kg5 Ke2 c3 Nh3+ Kh5 Qc6 c2 Ra4 g3 Nc3 Qb6 d8R g2 d7 b3 Nf4+ Kg4 Bd2 c1R Rh3 b2 Ne6 b1Q Rf3 Nf6 Ng7 Kh4 Re8 Qf5 d8N Rd1 Nde6 Ne4 Re7 Qf4 Rb7 Nd6 Bc1 Qe4 Bd2 Qbb1 Rb3 Bb7 Bc1 Rd3 Bd2 Rf8 h8Q Qb2 Qh7 Rh8 Qf5 Qb1 h7 Qb2 Qfb5 Qb1 Qe8 Nc6 Qd5 Rc8 a8N Na7 Nac7 Bc6 Qc4 Bd5 Qcc6 Rb8 Bc1 Rb5 Ba3 Bc4 Bb4 Rh5 Ba3 Bd5 Bc5 Nac8 Ba7 Rh6 Bb8 Na7 Rba3 Qb6 Rb3 Rf8 h8N Rg8 Nh5 Rg5 Nhg7 Rgh5 Ng6+ Kg4 Ke1 e2 Ngf8 Kh4 Rf6 Rg3 Rf3 Rh3 Kd2 e1N Bb5 Nd3 Kd1 Nb4 Kd2 Qf5 Ke2 Rg3 Nf4 Rh3 Qe3 Qe4 N4e6 Rh1 Qc4 Rd1 Qc6 Rd3
Q4R1r/pB3P2/1q1bBbr1/1Q6/b2B2RP/NR5B/P1n1K2p/2k1NqBq w - - 0 1 illegal: No proof kernel
6NQ/r1rR1p1R/1PnB1N2/1pr5/P2k1n2/BPbB3B/Q1b3nN/1b2B1K1 w - - 0 1 illegal: No proof kernel
2Q2B1q/2bn1r2/1BBB2pP/rQKBb3/1PR3PQ/bN1p2R1/b6N/4k2b w - - 0 1 illegal: No proof kernel
4n1Kb/2R2PP1/B3k3/2n1q2N/1np1N2B/rQ4Bp/nQPRn2N/1rN4N w - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 g5 a4 f5 axb5 Bb7 h3 Bf3 gxf5 g4 Nd2 g3 Nb1 Bg4 hxg4 Qg5 Rh5 Qe7 Rh1 Qd8 Kd2 Ke7 Kc3 h5 Kc4 a5 Kd5 c5 b4 a4 f4 h4 e4 g2 g5 h3 g6 a3 f6+ Ke8 b6 d6 Ke6 d5 b7 d4 b5 a2 f5 d3 b6 d2 Ba6 c4 Qf3 d1N Ne2 g1N Ng3 Bh6 f7+ Kf8 Bg5 Ne7 Nd2 Qd3 Rh2 Qa3 Nh1 Nec6 Qb3 Qa4 Nf1 Bg7 Bh4 Ra7 Rd2 Nc3 Nh2 Nd7 b8B Nf3 b7 Qa5 Bd6+ Ne7 b8Q+ Qd8 Qb2 Na4 Q8b3 Bf6 Bc7 Kg7 f8N Nb8 Nd7 Rg8 Nc5 Nec6 Nd3 Nb4 Nc1 Kh6 Kf7 Ng1 e6 Nc3 e7 Nge2 e8N Bh8 g7 Nd7 f6 Qb8 Bcg3 Qe5 Nd6 Rb8 Rb1 Rbb7 Kg8 Kg6 f7 a1N Q2a2 Qb5 Qab2 Nca2 e5 Qd5 e6 Qe5 Ne4 Kf5 e7 Ke6 e8N Rb5 Bc8 Ra3 N8f6 Rb8 Nh5 Rb6 Q3c3 Nb3 Ba6 Nbc5 Qcb3 Nf6+ Kf8 Ne8 Kg8 Nac3 Ra1 Ra5 Ra3 Nca2 Ra4 Nbd3 Rb4 Ra3 Rb5 Rb8 Rb7 Ndb4 Rc7 Rb6 Rdd7 Rd6 Rd8 Rd1 Rd2 Rg1 Nd3 Ra1 Nc1 Rb1
RN5B/4b2p/1QrRbr1P/2rq4/K1PQp3/3Bb1Bb/1RRP2kn/1R4N1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 fxg5 d5 exd5 Na6 b4 Nc7 bxc5 b4 Nc3 Nf6 Nb1 Nb5 axb5 Ng8 g4 Kd7 h4 e5 h5 a5 c6+ Kd6 h6 f5 b6 a4 b7 b3 b8B+ Qc7 g6 a3 g5 f4 g7 f3 g6 e4 Bd3 Ke5 d6 Kf4 d7 Kg3 d8R a2 Bb2 Be6 Na3 Kg2 Nb5 Ra6 Qb1 f2+ Kd1 f1B Na7 Bh3 Rd6 Ne7 g8Q Rb6 g7 Qd7 c7 Ng6 c8R Ne5 Nc6 Nf3 Qc4 Rb5 Qd4 Nh2 g8R+ Rg5 Bc7 Be6 Nb8 Be7 c4 Qd8 Bc3 b2 Kc2 Rg6 Kb3 Rg5 Rg6 Rf8 Ka4 Rf6 Rb6 Qg8 Bg3 Rc5 Rd8 Qf7 Rgg8 Qh5 Rdd6 Qd5 Rf8 Rg6 Rf3 Rf6 Re3 Rc6 Re1 Rc5 Rc1 Rc6 Rc2 Rc5 Qc1 b1R Qb2 Rc6 Qb4 Rb3 Rb1 a1B Ra6 Rb2 Qbb6 Rb5 Rbb2 Rbc5 Ra7 Be2 Ra8 B2g4 Nh3 Bgf5 Rhb1 Bg4 Ng1 Bh3 Qe3 Rf5 Bh8 Rf6 Ra2 Be5 Rab2 Bf4 Qd4 Be3
B7/r1Rqb2r/Kb6/1Q1P1k2/2QQnNpp/1RP1RR1P/4N1b1/B1b1R2r w - - 0 1 legal: proof: e4 b5 g4 c5 d4 f5 gxf5 d5 dxc5 d4 a4 Nd7 axb5 Nb6 Bg2 Rb8 Bf1 Nd5 exd5 Ra8 Kd2 Kd7 Kd3 e5 Kc4 h5 b4 g5 f4 a5 b6 e4 Kb5 h4 c6+ Ke7 f6+ Kf7 b7 Kg6 b8Q a4 c7 g4 h3 d3 f7 e3 f5+ Kf6 Bb2+ Kg5 f6 e2 Ra3 e1B Ne2 d2 Ba1 Bc5 f8Q Rh5 f7 Ra6 Nbc3 Ra7 Nf4 Qe7 Nce2 Bg3 Re3 a3 c3 Rb7+ Ka6 a2 b5 Bf5 c8R Be4 b6 Rh7 Rc7 Nf6 Qfc8 Qd7 f8R Bg2 Qa4 d1R Qd4 Bb4 Ng1 Ba5 Nh5 Bd6 Bb5 Be7 Rc5 Rc7 b7 Ne8 Bc6 Rf1 Rff3 Nd6 Ne2 Ne4 Nhf4 Kf5 Rc4 Rf2 Re1 Rf1 Qc5 Rg1 Qba7 Rh1 b8R Bf1 Rb5 Bg2 Ba8 Rb7 Rb3 Bad8 Q5c6 Bc7 Qd4 Bb6 Bb2 a1B Qb5 Bf1 Qcc5 Bg2 Qcb4 Rb8 Rc7 Rb7 Bc1 Bb2 Qb4c4 Bba3 Bb2 Beb4 Rf2 Be7 Ba1 Bc1 Rff3 Ra7+
1k2b1BQ/2n5/2BQNpK1/2N1rpP1/n2N4/b3PPnR/1B1N2bR/3N1qn1 w - - 0 1 illegal: Other
B2N2K1/2N3N1/2p1nrn1/r7/QP1pP1k1/1RrbR1q1/BrP1n2B/4BQ1B w - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 f4 Bd6 f5 Nc6 f6 Ba3 g6 Ba6 g5 Bc8 axb3 Bf8 b4 Bg7 fxg7 Nb8 b5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 b4 h5 b6 d6 b7 f6 Rh3 a4 Rb3 h4 Nc3 h3 Bg2 a3 Nb5 h2 Qf1 h1N Nh3 a2 Nf4+ Kd7 Kd5 f5 e4 Rh3 e6+ Ke7 Bd2 Na6 b8B Rc3 Re1 a1R Re3 Nc5 Be1 Ng3 Bh1 R1a2 Nh5 f4 Nd4 f3 Nc6+ Ke8 e7 Kd7 e8N f2 Ne5+ Ke7 Nf7 Qd7 Nd8 Ba6 Bf3 Rb2 Bh1 Nh6 g8B Nf7 g7 Ne5 g6 Bd3 Bf7 Qh3 g8B Raa2 g7 Ne2 Be6 Qh2 Bgf7 Ng6 g8Q Ra1 Nhg7 Ra5 Bd7 Qh3 Bc6 Qf3 Ba8 Qg3 Qg2 f1R Be6 Rf4 Qf1 Rf6 Qh8 Qf4 Bf7 Qg4 Qhh3 Qg3 Qd7+ Kf8 Qa4 Ke7 Kc6 d5+ Be6 d4 Kd5 Ngf4+ Ke5 c6 Nc7 Rh6 Bd5 Ng6+ Kf5 Kd6 Kf6 Ne6 Kf7 Ke5 Kg8 Ngf4 Ra3 Rf6 Ba2 Ng6 Rb3 Rf2 Ba7 Kf4 Bc5 Rf3 Bd6+ Kg4 Be5 Rf6 Bf4 Qg1 Bh2 Qg3
b3Q1qk/P4Bpp/2N3P1/BrQ2PKn/B1N1R3/NRr3qN/qb1Nq3/8 w - - 0 1 illegal: No proof kernel
5R1b/2pbB1Bb/rbk1pB2/4P1B1/3QK1NQ/1q2nP2/1R2P1B1/q1N2N1n w - - 0 1 illegal: No proof kernel
K4B2/b3PRQ1/1k1q4/nn5p/4qB1n/2PNpb1n/Q1B1P1QR/BrB4N w - - 0 1 illegal: No proof kernel
8/N2NBk2/p2p3q/Kr1P4/n1B2r1Q/RQ2b1Q1/RBPqnrQP/3r2Q1 w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 Ba6 a4 Bb5 axb5 Rh7 Ne2 Rh6 Ng1 Rh8 f4 e5 d4 g5 Kd2 b3 Kc3 e4 Kb4 d6 b6 e3 b7 g4 d5 g3 f6 g2 c6 b2 h6 e2 f5 e1R f7+ Ke7 c7 a6 c8Q Re4+ Bc4 Bg7 f8B+ Kf6 h7 Bh6 Na3 b1R+ Bb2+ Re5 Ra2 Be3 Nb5 Nh6 Nf3 g1Q Na7 Nd7 b8Q Qg5 Qg1 Rd1 Be7+ Kf7 f6 Rf8 h8Q Nb6 Qcg4 Na4 Q4g2 Nf5 Qh4 Nd4 Qhg3 Qd7 Ka5 Ne2 Qb3 Rab8 Qh4 Rf5 Ne5+ Ke8 Qgg3 Qe6 Nd7 Kf7 Q1g2 Rb4 Qg1 Kg6 f7 Rf4 Q1g2 Qf6 Rf1 Qd4 Rf3 Qd2 Qg1 Rfb8 f8Q Re8 Qfh8 Kf7 Qe5 Qh6 Q3g2 Rg8 Rg3 Rg5 Rf3 Rgf5 Rh3 Rf2 Qeg3 R5f4 Q3f3 Bd4 Qbd3 Bc5 Qfg4 Qh7 Re3 Qh8 Qg4g3 Qh6 Qa3 Bd4 Rd3 Be3 Qc3 Rb8 Qb4 Rb7 Rda3 Rb6 Qc3 Rb4 Qb3 Rb5+
1Rn3B1/k6P/1n1B2r1/K1NP1RB1/1Qp2RR1/Q1P4r/q2pnn2/1R1qbN2 w - - 0 1 illegal: No proof kernel
5bBN/2k3B1/1p6/Q2b1n2/3N1p1R/RNqQRNP1/1P3Pqq/qrN1nK2 w - - 0 2 illegal: No possible last move
2kr3K/PNrpBRBN/1b1Q1p1q/2nPR3/P1B1r3/2Q2br1/1B6/1Q2Bq2 w - - 0 1 illegal: No possible last move
3n3k/pq3R2/1P3R1b/P2KN2R/Q2p2r1/r2BB3/N1PRrR1r/B3nq1Q w - - 0 1 illegal: No proof kernel
RrbB2KQ/1R3B2/3kp1q1/1nrNrP2/5r1P/3RPq1p/2R1N1B1/2R2Qn1 w - - 0 1 illegal: No proof kernel
1R2KR1N/1P5R/pN1B4/1p5r/2qQRR1n/P2Pq1NB/qQ4r1/n2kq1b1 w - - 0 1 illegal: No proof kernel
qkN1B3/nPN3pn/1rp5/N2bB2Q/nq2R1R1/rnQ2NP1/2N2P2/2B1K3 w - - 0 1 illegal: No proof kernel
Q1r1b2k/4Qp2/5N1p/1P1B1N1r/B1Pq1BQq/K3BP1R/2r5/nBr2Rn1 w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 d5 dxc5 b5 a4 d4 axb5 d3 e3 Bg7 Ra4 Bd7 Ra1 Bd4 exd4 Bc8 Kd2 Kf8 Kc3 Kg7 Kb3 e5 g4 a5 c4 d2 g6 e4 b6 h6 c6 a4+ Ka3 e3 b4 e2 g5 e1Q c7 Qf6 b7 Be6 c8B Qf5 d5 Qee4 d6 Qh4 d7 Qhg4 d8Q Qh5 Nf3 Bd7 Rh3 Ra7 Qe7 Qb5 Nh4 Na6 b8B Qb6 Nc3 Qd4 Qg4 d1R Nd5 Nf6 Be3 Nc5 Bbf4 Nb3 Bg2 Rh1 Rf1 Ne4 Nf6 Nc3 Bd5 Ne2 f3 Be8 Bd7 Na1 B7c6 Rf8 Nf5+ Kh8 Ka2 a3 Ba4 Ng1 b5 Nc2 Kb3 Na1+ Kb4 a2 Ka3 Qe4 Ng8 Qd4 g7+ Kh7 Nf6+ Kg6 g8B Qh4 Nd6 Kg7 Bh7 Kh8 Bb1 Ra8 g6 Rg8 Qgd7 Rc8 Nf5 Rh2 Qc6 Rc2 Qcb7 Nb3 Qa8 a1R+ Ba2 Rd1 Bb1 Na1 Nh5 Rdc1 g7+ Kh7 Nf6+ Kg6 Ng3 Bc6 Qe6 Rge8 Qd7 Re5 Qe7 Rh5 Nf5 Be8 Ne4 Qdf6 g8Q+ Qg7 Qgf8 Kh7 Qg5 Bd7 Qfe7 Qd4 Qg4 Kh8 Nf6 Be8
k1nR2b1/6Pn/nPp2Q1R/1N2R1R1/r5rN/1B2B1nq/K1P1qNp1/3Q3R w - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 e5 gxf5 g4 d4 Bh6 dxe5 Bg5 hxg5 Bb7 Bg2 Ba6 Bf1 Bc8 Kd2 d5 Kc3 Kd7 Kb3 a5 f4 h5 e4 a4+ Ka2 g3 b4 a3 f6 c6 e6+ Kc7 e7 Kb7 e8R d4 b6 h4 g6 g2 g7 d3 e5 h3 f7 h2 f8N d2 e6 Ra4 b5 Rh5 e7 Re5 f5 Qd5+ Bc4 Ka8 f6 Qe4 f7 Qe1 Rd8 Bf5 e8R Re4 Nc3 Qe2 Nh3 Rg4 Ng6 Ne7 f8Q Be6 Nf2 Nc8 Qf6 Na6 Bb3 Bc4 Rh8 Bg8 Re1 h1N Rh6 Ng3 Nh4 Qf3 Re5 Qe2 Qg1 d1Q Be3 Qdd3 Qd1 Qf5 Qd4 Qfd3 Rh1 Qf5 Qd1 Qfd3 Kb1 a2+ Kb2 a1N b7+ Kb8 Rdd5 Qh7 Rc5 Ka7 b8R Qf5 Rb7+ Ka8 b6 Qfd3 Nb5 Qd7 Bd5 Nb3 Rg5 Nd2 Bb3 Qe6 Rd7 Nf3 Rd8 Qd7 Rge5 Ng5 Kb1 Nh7 Rg5 Rgb4 Rce5 Qh3 Kb2 Rg4 Kb1 Rae4 Ka2 Ra4+
3K1bB1/N4rpN/1PnP1nP1/2k1B1Q1/Q2R3r/1b2NB2/1rr1pB2/2R1B1r1 w - - 0 1 illegal: No proof kernel
2B5/1P1N2Bb/r2p1R2/1B1Pp1N1/B3K1b1/bb2n1BQ/k2P1Rn1/N2Qb1r1 w - - 0 1 illegal: No proof kernel
1k2B2b/2R2rb1/Q1r2bn1/R1bQpp1K/4P3/NN2nPrP/2N2B2/1N3N1Q w - - 1 2 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 g4 h4 Qd6 Na3 h5 Nc4 g3 Qb3 Qe5 Qd1 Qg5 hxg5 h4 Na3 h3 Nb1 h2 Qa4 Bd7 Qd1 Bh3 gxh3 Rh5 Nf3 Rh4 Ng1 Rh8 e4 Kd7 Ke2 Kc8 Kf3 e5 Kg4 c5 d4 a5 b4 c4 f3 c3 d6 c2 b6 g2 g6 a4 b7+ Kd8 g7 f6 b5 a3 d5 a2 b6 Be7 d7 Ra5 Ne2 g1B Be3 c1B Bf2 Nc6 b8N Ra8 b7 Kc7 d8N Ra5 Na6+ Kd6 b8N Bf4 Nc7 Rh6 Ng3 Nd4 Bb5 Nf5 Nf1 Ra7 Nd7 Bg5 Nc6 Rg6 Nb4 Ne3+ Kh5 f5 Nc2 Bef6 Ba4 Ne7 g8Q Bh8 Nc5 Bgf6 Nb3 Rg3 Qa8 Ng6 Nb5+ Kd7 N5a3+ Kc7 Qc6+ Kb8 d6 Rf7 d7 Bfg7 Qa6 Bf6 Nc3 Bfg7 Rc1 a1B Ncb1 Bd4 Bb5 Bc5 Qd5 Rf8 Qd1 Be7 Qe1 Rc8 d8Q Bef6 Qd5 Rc7 Be8 Ra7 Nb4 Rd7 Rc7 Rf7 Nbc2 Nd1 Bb6 Bc5 Rg1 h1R Rg2 Bg1 Rd2 Rh2 Bf2 Ne3 Rd4 Rh1 Ra4 Rh2 Qed1 Rh1 Ra5 Rh2 Be1 Rd2 Bf2 Rd3 Nh2 Rc3 Qdf1 Rc4 Qg2 Rc3 Qh1 Rc6 Nf1 Ng4 Be1 Bc5 Bf2 Ne3
1b2r1b1/RP1nRr1p/3Q2Bb/2N1N2r/2NrQ1p1/1BB2B1P/B5P1/K1k2n2 w - - 1 2 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 d4 Bd6 dxe5 Bf8 e4 Bc5 f4 Nc6 f5 Ke7 e6 Kf6 Kd2 Bd6 e5+ Kg5 f6 Nb8 Ke1+ Kg6 Qd4 Bf8 Qd1 Qe7 fxe7 Bb7 Bf4 Ba6 Bc1 Bc8 Kd2 Kf5 Kc3 Ke4 e8B a5 b4 f5 Kb2 g5 d6 c5 d7 c4 d8Q f4 b6 f3 e7 g4 e6 a4 b7 f2 b5 Ra5 h3 Nc6 b8N Nb4 b6 Ba6 b7 Rh5 Bf7 Nf6 e8B Bh6 e7 Bf4 Bd2 Nc2 Qe2+ Ne3 Nf3 Nd7 Na3 c3+ Kb1 Bc4 Ne5 Rf8 Na6 c2+ Kb2 c1R Bc3 Bh6 Nc5+ Kf4 Qc2 Rd1 Be2 f1R Bf3 Rd4 Be6 Re1 Bg6 Rf7 e8B Nf1 Qe2 Bd5 Nac4 a3+ Ka2 Rb1 Bc2 Re1 Qd3 Ree4 Bb3 Re3 Kb1 a2+ Kb2 Re1 Qb8 Ree4 Qd6 Re3 Re1 a1B+ Kb1 Bb2 Rg1 Ba3 Ka1 Bb4 Qc2 Ba5 Re2 Bc7 Rh1 Bb8 Qe4+ Kg3 Ra2 Re2 Ra7 Kf2 Bb2 Ke1 Bc3+ Rd2 Ba2 Kd1 Rg1 Kc1 Bb3 Rd1 Rh1 Ne3 Re1 Nf1 Ba2 Rf2 Re2 Rd4 Re3 Rf8 Bg6 Re8 Nd2 Bc6 Beb3 Bd5 Ndc4 Bg8 Qf4 Nb6 Bfe4 Rfd2 Ned7 Re7 Qf5 Rf7 Bf3 Re4 Qff4 Re8 Re7 Rc8 Qfd4 Re8 Qe4 Rd4 Nde5 Nd7
N1Q2b1Q/Rb4Kb/B3p1Qr/2P2B1R/3NP3/1rp5/1B2Pkr1/BbnB1n2 w - - 0 1 illegal: No proof kernel
1B6/qrq3N1/1r1BpNK1/1Bp1QR1N/NN6/2P2Q1n/q3PR1P/1k1b2qq w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 c6 g4 e6 gxh5 Ke7 d4 Kf6 d5 Ba6 f5 Bc8 d6 Ke5 f6 Be7 fxe7 Kf6 Nf3 Na6 Ng1 Nc7 dxc7 Bb7 Nf3 Ba6 Ng1 Bc8 Kf2 Ke5 Kf3 f5 e8N d5 b4 a5 b6 g5 b5 c5 h6 d4 b7 a4 b8B d3 h7 Kd4 b6 f4 Kg4 f3 Kh5 a3 b7 g4 Nd2 Kc3 Nh3 g3 Ng7 g2 Kg6 g1Q+ Bg2 a2 Qf1 f2 Nf4 Ra7 Nfh5 Bd7 c8N Ba4 Nb6 Nf6 Rb1 Rg8 h8Q Ng4 Bc6 a1Q Bb5 Qa2 Bd6 Qd7 b8N Qc7 Na6 Rb7 Nb4 Rgb8 Qh3 f1Q Qf3 Qe1 Ra1 Qh4 Rb1 Qhe7 Ne4+ Kd4 Bg5 d2 Nef6 d1Q Bgf4 Nf2+ Bg3 Bb3 Na4 Nh3 Ra1 Qdf1 Re1 Qfg2 Rf1 Rb6 Rf2 R8b7 Bd7 Kc4 c3 Bd1 Bb5+ Kb3 Qb8 Q1f1 Rg1 Qh1 Bge5 Qe1 Rg5 Qeg1 Qh8 Qb8 Bg3 Qa7 Bb8 Qc7 Rf5 Qf1 Bd6 Ka3 Qh6 Qfg1+ Qg5 Kb3 Na6 Kc2 Nb4+ Kb1 Qgg3 Qe1 Qe5 Qeg1+
br5q/kNnB2N1/B3Q3/B1P1P2R/pB1r1n1P/R3Bp2/2Q1pr1K/2b1R3 w - - 0 1 illegal: No proof kernel
k1bb2R1/5npK/3bQ3/pB1q2NP/Q1R1Rp2/1Q2BP1n/2QNQ2P/5r1r w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 d5 gxh5 b4 exd5 b3 axb3 Nh6 b4 Ng8 b5 Rh7 Bg2 Rh6 Bf1 Rh8 Ke2 Kd7 Kd3 Kc7 Ke4 Kb7 c4 a5 d4 e5 d6 f6 d7 Qe7 Kf5 e4 Kg6 e3 d8Q f5 c6+ Ka7 b6+ Ka6 b7 Ka7 c7 e2 d5 e1B d6 f4 d7 Qe5 f3 Qe7 c5 Rh7 c6 Bg3 Qa4 Qe1 Nh3 Bb4 Nd2 Na6 Qe8 Bh4 d8R Rb8 Qe2 Rh8 Ng5 Nh6 Rg8 Qd1 Ra3 Bc5 Re3 Bd6 Re4 Nc5 Rc4 Ne6 Rg1 Bd7 c8Q Nf7 c7 Qb3 Qe8 Bc8 Re4 Qd5 Qe7 Nc5 Qe6 Nd3 Rc4 Nf2 Rg2 Bd7 c8Q Nh3 Qcc6 Rc8 Re4 Rc7 Qcc2 Bc8 Rg1 Rc6 Rc4 Rb6 Rh1 Rb1 b8Q+ Ka6 Qbb3 Ka7 Re8 Rf8 Kh7 Ka8 Rd8 Re8 Re4 Re7 Rg8 Nh6 Qe1 Nf7 Bb5 Rb7 Qe2 Rd7 Rc4 Rd8 Re1 Re8 Nge4 Bd8 Ng5 Re7 Qf2 Rd7 Ree4 Rc7 Qe2 Ra1 Bb2 Rf1 Bd4 Rh1 Be3 Rc6 Rb4 Rc3 Rbc4 Rf1 Qcd3 Rcc1 Qbc2 Rh1 Qdb3 Rcf1
n1rq4/Rb3bpk/1QB4P/2n1BP2/N3n1Bp/3QR2B/1N1KNrpP/1B6 w - - 0 1 illegal: Other
6b1/1q2BpR1/P1pp3b/5r1P/k2BQnN1/4P2B/n2b2K1/rNQRQ1BB w - - 0 1 illegal: No proof kernel
3b4/1BnP3k/2n2Bpp/3RNQ1P/K2p1BNq/P1bQ3R/1N2n1N1/1r1N3r w - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 c5 g4 f5 gxf5 Bd7 d4 Bc6 dxc5 d4 Bc4 Qc7 Bf1 Bd5 exd5 Qd8 Kd2 Kf7 c4 b5 Kc2 e5 Kb3 b4 f4 e4 h4 g6 f6 e3 h5 h6 c6 e2 a6 e1B f5 Bd2 c5 Qa5 d6 Qb5 a7 Qe2 c7 Bg7 c8Q Qe3+ Ka4 b3 c6 b2 c7 Qc3 Ne2 Na6 Bg2 Qd3 Bb7 Qh3 Nf4 Qg2 Rh3 Ba5 Qd3 Qg3 Nc3 b1N Ng2 Qh4 Nd1 Na3 Bf4 Rb8 a8N Nc2 Nb6 Be1 Nd5 Ba5 N5e3 Be1 Ng4 Ra8 a3 Bd2 Rc1 Na1 Rc5 Rh7 Rd5 Nb3 Qd7+ Kf8 c8N Bc3 f7 Nc1 Nb6 Rb8 Nc4 Ne7 Ncb2 Bf6 Q7b5 Kg7 f8N Nc6 Nd7 Re8 Nde5 Bd8 f6+ Kg8 Qf5 Nc7 Qbd3 Ne2 f7+ Kh8 f8B Rg7 Bc1 Kh7 Be7 Rgg8 d7 Ref8 Qg5 Rf1 Bf4 Rh1 Qgf5 Rf8 Bf6 Re8 Nf7 Re3 Nfe5 Rf3 Rc5 Rff1 Rd5 Rfg1 Nde3 Ra1 Ned1 Rb1
5K2/k1np1p2/b1BNBB2/N1r1Pr2/Q3q1Q1/b1P5/2pn1RP1/n1N1R1BB w - - 0 1 illegal: Other
2n3B1/2p3P1/1p1BP3/K1R1Qpk1/1NN5/2NRr1P1/1nqrBN1b/1b2QN1n w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 a4 Ke7 d4 f5 Kd2 h5 Kc3 h4 Kb4 h3 e4 h2 a6 Rh5 a7 Bg7 g6 Nd7 g3 Ngf6 e6 Nf8 d6+ Ke8 e7 Rg5 d5 Rb8 a8N Rg4 a5 Qd7 a6 N6h7 a7 Qc6 Bf4 Bf6 g7 Kf7 e8B+ Kg8 e5 Bd7 e6 Bc8 d7 Ng6 d8Q Be5 d6 Nh4 d7 Qe4+ Ka5 Nf8 Nd2 Kh7 Qf6 Nhg6 d8N Bd7 Be2 Ne7 Nf1 Nfg6 Nb6 Qc2 a8N Nc8 Qe1 Bd4 Na4 Ne5 Nc6 Nd3 Nb4 Bb5 Nc3 Nb2 Bf7 Bd3 Bd6 Re4 Qe5 Kh6 Nh3 Bg1 Ra3 Re3 Nf2 Kg5 Nb6 Be4 Nc4 Ra8+ Kb5 Ra6 Bg8 Bd3 Bc5 Rd6 Ka5 Be4 Rb3 Rd2 Ra3 Qb3 Bd6 Bb1 Ncd1 Qc2 Rd3 Nb6 Nc3 Nc8 Ng4 Bf2 Rg1 h1N Rg2 Bg1 Nf2 Ba2 Rh2 Bb1 Rh4 Bh2 Rhd4 Qc1 Rd5 Qc2 Rc5 b6+
1q6/P2Pkpr1/1rb1p2Q/1pn1B2K/BR6/3NBBnQ/1R4BP/bNn1N3 w - - 0 1 illegal: No proof kernel
6Nk/RQ4N1/n4p2/Np2PPN1/2nB1qq1/2bB3P/Q2prRNQ/b5rK w - - 0 1 illegal: No possible last move
Qq3N2/4B3/Q1p1PR2/1b1Rnqrk/P1Rb4/BRp4B/Prp2n2/N4RK1 w - - 0 1 illegal: Other
2k4r/3qKQnQ/pPr1RN2/p1N5/Pb5B/1P2BQ2/R1Bqpb2/3Q1Q1n w - - 0 1 illegal: Other
2RbQ3/2R1q1p1/K3pB1r/Bqb2r2/2N2R2/NPR5/pRPnP1k1/nBQ5 w - - 0 1 illegal: Other
1Q2Nr2/1Bq1Pp2/pp1BQP2/Rq1nB2k/2bQn2r/2QN3P/1Q2K3/R3b3 w - - 0 1 legal: proof: d4 c5 b4 e5 bxc5 h5 dxe5 h4 a4 h3 a5 b6 a6 Ke7 gxh3 Qc7 h4 Qb7 axb7 Kd8 h5 Ke8 e4 d5 f4 g5 c4 a6 f5 d4 h3 g4 e6 g3 e7 d3 h6 g2 c6 d2+ Ke2 Rh7 e5 Bd7 c5 Bc8 c7 Rh8 h7 Nh6 c6 Ra7 Ba3 Bg7 Bd6 Bf8 Nc3 Bd7 Nf3 g1Q Nb5 Rg8 h8Q Rg4 Bg2 Qc5 Ra5 Ng8 Ne1 Rh4 Nd3 Be6 f6 Nd7 b8B Ra8 Qb1 Bd5 Qb2 Bc4 Rha1 Qb4 Qh6 Nc5 Qe3 Ne4 Qed4 d1Q+ Ke3 Qb1 Ke2 Qg1 Bh1 Qg4+ Bf3 Qd7 c8Q+ Qd8 Qe6 Qc7 Bh1 Bh6 Bg2 Bd2 Bh1 Qb7 c7 Be1 Bf3 Qc8 Bh1 Qd8 c8Q Qa4 Qcc5 Qc7 Qdc3 Qb3 Q5d4 Qb4 Na7 Qb5 Nc8 Nf2 Bb7 Ne4 Qed5 Kd7 Qc6+ Ke6 e8Q+ Kf5 e6 Kg5 e7 Nh6 Qcd7 Ng4 Qe6 Kg6 Be5 Kh6 Nd6 Ne3 Q8c8 Nd5 Ne8 Kh5 Qd8 Qcd7 Bbd6 Rc8 Qc7 Qdc6 Qb8 Rd8 Nc7 Rf8 Ne8 Qc7
6n1/2KQbq1p/4R2P/kBbP2pp/3N3N/1Q4N1/BPb1BRrB/1B1rr3 w - - 0 1 illegal: Other
3B2Rq/N1b4p/5QP1/2rQ1n1B/QBP2N2/pK4Bn/Pp1Bb1R1/3b1n1k w - - 0 1 illegal: No possible last move
3r1Bn1/2n1Kb1p/n2B1B2/1B3q2/1Q5P/RNQ3Pp/2BrpR1P/N2Nk1r1 w - - 0 2 illegal: Other
2b2B2/rrp1R2N/kpnRPPNr/3N3Q/p7/1B2Q2N/N1P1nq1n/Q2K4 w - - 0 1 illegal: No proof kernel
q2Br1n1/6p1/1KP3r1/p1bR4/P1Nq4/1BR1Qr1b/pNQP3k/1RR1N1R1 w - - 0 1 illegal: Other
8/B1p2B1p/4BQ2/RBPp1BbQ/1Pr1b1P1/K1nR1q1Q/1n1q3N/k3qN2 w - - 0 1 legal: proof: d4 b5 f4 a5 a4 g5 axb5 e5 dxe5 g4 f5 g3 hxg3 Ke7 g4 Ke8 g5 Ra6 g4 Rg6 fxg6 Ba6 Rh2 Bb7 Rh1 Bc8 Kd2 Ke7 Kc3 Ke6 Kb3 f5 c4 d5 e4 f4 g7 f3 b6 f2 g6 Nd7 b7 Nb6 b8Q Bb7 Nd2 Qd7 Bd3 f1Q Qf3 Qd8 Qh3 Bb4 Ngf3 Qd7 Nh2 Qe8 Qd8 Qf3 Ndf1 Bd2 Ka3 a4 b4 Bg5 Be3 Nf6 g8B+ Qf7 g7 Ba6 Rg1 Qd1 Rg3 Qd2 Bc2 Bc8 Bg1 Bd7 Rd3 Bc8 Ka2 a3 Bd4 Na4 Ba7 Bd7 c5 Nb2 Kb3 a2 Ka3 Ba4 Bb1 Bc2 Qf8 Kd7 e6+ Kc6 e5 Kb5 e7 Kc4 e8Q Ne4 e6 Nc3 e7 Qf3 Be6 Rg8 Qff7 Rf8 Qf6 Rf7 g8B Rf8 Re3 Be4 Qeh5 Rf7 e8B Rf8 Qfg6 Rf5 Bgf7 Rf4 Bc2 Kd4 Bca4 Kc4 Bad7 Kd4 Qf6+ Kc4 Re2 Kd3 Bb5+ Kc2 Re3 Ne2 B8d7 Nc3 Bf5 Bd3 Bc8 Rc4 Bce6 Be4 Rd3 Qde3 Re1 Qc1 Red1 Kb1 Kb3 a1Q Re1 Nbd1 Re2 Qcf4 Rc2 Qd2 Ra2 Nb2 Ra5 Kc1 Qfg6 Qb1 Ka3 Kc2 Bbd7 Qbe1 Bb5 Kb1 Qf6 Ka1
q6k/1q1p1R1n/1B1Pn2R/1bp1r3/3PR1b1/Q1P1p2N/2R1qNK1/1R1B2BQ w - - 1 2 legal: proof: g4 b5 f4 g5 fxg5 a5 e4 e6 d4 b4 h4 b3 h5 Qf6 h6 Bb7 g6 Ra6 g5 Bg7 hxg7 Rd6 axb3 Ba6 b4 Qd8 b5 Rd5 exd5 Bc8 Kf2 f5 b4 h5 b6 c5 c3 f4 b5 h4 b7 a4 d6 h3 b6 e5 Be3 e4 Ra2 f3 Rc2 a3 Nd2 Na6 b8Q a2 b7 a1Q Qa8 h2 b8B Nc7 Ba7 Qa5 Bb6 Ba6 Be2 Rh6 Qb1 Rh8 Nh3 Ne6 Qb3 Nf6 g8R+ Nf8 g7 Bb7 g6 Rh5 Rb1 Qb5 Rh8 h1Q g8R Re5 Rh6 Nh7 Rg7 Ne6 Bd1 Kf8 Rf7+ Kg8 g7 Qe2+ Kg3 f2 Qba3 Bd5 Qc6 Qa8 Qb7 f1B Bg1 e3 Ne4 Qd2 Nef2 Bf3 Qc6 B3e2 Qg2 Bh5 Qh2 Qhb7 Qh1 Bb5 Kh2 Rd5 Kg2 Bhe2 Rf4 Re5+ Re4 Kf7 g8R Bg4 Rh8 Kg7 Rf8 Qe2 Rf7+ Kh8
1Q1B2K1/4NRnp/1BQB4/2QN1Bq1/bP6/p3q1pP/P1R1b1qk/3rB2n w - - 0 2 legal: proof: f4 a5 e4 f5 c4 b5 cxb5 d5 exd5 e5 g3 e4 Qb3 Bd6 Qd1 Be5 fxe5 f4 Bd3 f3 Bf1 Ra6 Na3 Rf6 Nb1 Rf4 gxf4 Be6 Na3 Bg4 Nb1 Bc8 Kf2 Kf7 Kg3 Kg6 b4 Kh5 d4 c5 e6 g5 e7 c4 e8Q+ Kh6 h3 g4 b6 f2 b7 c3 d6 a4 d7 c2 f5+ e3 Kf4 g3 Ke5 Kg5 Ke6 Kh4 Kf7 a3 d5 e2 d6 e1Q f6 Qe2 Qd4+ Qe4 Rh2 Qg4 Qc5 Qe2 Bd2 c1Q Nc3 Na6 b8Q Ne7 Be1 Nf5 Nd5 Qce3 Ne7 Ng7 Rd1 Qa5 d8B Bd7 Bb6 Ba4 Qec6 Rd8 d7 Q2f3 Rd6 Qg2 Bd3 f1B Bf5 Kg5 Ne2 Qb5 Nc3 Kf4 Ncd5+ Kf3 Re6 Be2 Re4 Qbd3 Rc4 Qg5 Rc2 Qde3 Rh1 Qh2 Rf1+ Kg2 Rf4 Qhg1 Rf1 Kh2 Rf2+ Qg2 Rf3 Rc8 d8B Rc7 Rf2 Rd7 Kg8 Rd6 f7 Rd7 Q5d6 Nc5 f8B Ne4 Qdc5 Rd6 Be6 Rd7 Rf7 Nf2 Bf5 Rd6 Ng6 Nh1 Bfe7 Re6 Bd6 Re4 Nge7 Rd4 Kh8 Rd2 Kg8 Rd1
5Q1q/1Q2NN2/rPP4p/bQp1R2Q/pR1K3Q/b3Bb1B/n5qP/k1n3B1 w - - 0 1 illegal: No possible last move
Q1N4B/nbQ1KR2/2pNQrn1/2P2p2/r1B2bn1/p1kPr1P1/5QQN/1R6 w - - 0 1 legal: proof: e4 g5 f4 d5 fxg5 b5 exd5 b4 g4 b3 axb3 Qd7 b4 Qd6 b5 Qg3+ hxg3 Bh6 Na3 Bg7 Nb1 Bf8 Ke2 Kd7 Kd3 Kd6 Kd4 f5 c4 h5 b4 a5 b6 h4 c5+ Kd7 Ke5 c6 b5 a4 b7 h3 d6 h2 b6 e6 g6 a3 g7 Ra5 g5 Rh6 g6 Rh4 Bc4 Be7 d3 Rd4 Qf1 Rb5 Qg2 Rg4 Nc3 Rb3 Nb5 Bg5 Nf3 Rb4 Rb1 Na6 b8Q Ne7 g8Q Bb7 g7 Bf4+ Kf6 e5 Qa8 e4 Bb2 e3 Qf7 e2 g8N e1R Bd4 Bc8 b7 Ra4 b8Q Nc7 Qf2 Re3 Qe6+ Kd8 d7 Ng6 Nd6 Nb5 Kf7 Na7 Qbb2 Kc7 Bh8 Bb7 Rhe1 h1N Nh2 Rh4 Qg2 Nf2 Ne7 Ng4 Nec8 Rh7+ Ke8 Rf7 Qbf2 Rf6 Re2 Nb5 Qa6 Na7 d8Q+ Kb8 Qc7+ Ka8 Qff1 Rf3 Qaa5 Ba6 Rb7 Nb5 Re1 Re3 Qd8 Be5 Rd7 Bf4 Rc7 Kb8 Rf7 Bb7 Qac7+ Ka8 Ne7+ Ka7 Qff2 Ka6 Rg1 Nh6 Rb1 Ng4 Bb3 Na7 Qa8 Rb4 Nec8 Ra4 Qce7 Ka5 Qc7+ Kb4 Bc4+ Kc3 Kd7 N6e5+ Ke7 Ng6+
6B1/4q1P1/4Nnk1/pBP2p2/K4Brb/PRb1BQ2/brNBpQ2/bR1N4 w - - 0 1 illegal: No proof kernel
2Q1b3/1n1p1k2/q1N1p1RP/Q1QqPp2/Rr1P1KB1/3Q3N/Nq5b/Q3B2b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 b4 e6 f5 Ke7 f6+ Kd6 bxa5 b4 c3 Nc6 c4 Nce7 fxe7 Rb8 Kf2 Nf6 Ke1 Rb5 cxb5 Ng8 Kf2 f5 Ke3 c5 e8Q g5 h4 b3 d4 b2 a4 c4 b6 c3 b7 g4 b8N c2 h6 g3 h7 g2 h5 Bg7 a6 Qc7 a7 Be5 a8Q Qb6 a5 Qb4 h6 Bh2 a6 Qa3+ Qd3 Ne7 a7 Bb7 Qf8 Bf3 Nc3 b1B Bd2 c1Q Nc6 Qa6 Ra4 Bh5 Nh3 Qb2 Rg1 Be8 Be1 Ba2 Qc8 Bd5 a8Q Rg8 h8Q Be4 Rh1 Bg1+ Kf4 Rg3 Na2 Bd5 Qd2 Rb3 Qd3 Rb4 e3 Bf3 Be2 Be4 Bg4 Bf3 Qfg7 Be4 Qd8 Nc8 Qa5 Bf3 Qf6 Be4 Qfd8 Bf3 Qdb6 Be4 Na7+ Ke7 Nc6+ Kf7 Qbc5 Nd6 Qaa7 Bd5 e4 Nb7 e5 Bf2 Qe4 g1Q Qd3 Qg2 Rg1 Qh1 Rg2 Bg1 Qa8 Qh2+ Rg3 Bh1 Qc8 Qhg2 Qhf8+ Kg6 Qcc3 Qd5 Qfc5 Kf7 Qc1 Qbb3 Qa1 Qa3 Be2 Qc3 Rg6 Qb2 Bg4 Bh2+
3Qr2q/B1pB2r1/3N4/RpP1R3/3rNq2/K2bRq2/1PN1Pp1k/R3QnR1 w - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 Ba3 g4 Ba6 f4 Nh6 g6 Be7 a4 Ba3 g5 Bb7 a5 Bc5 f5 Bb6 axb6 Nc6 g7 Ne7 Ra5 Ng6 fxg6 Ng8 Ra1 Bc8 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 c4 Kg4 e6 Kg3 c5 h5 b7 a5 b8R f5 e7 d5 e8N h4 Nd2 d4 Ra2 a4+ Ka3 f4 Ngf3 h3 Ne1 f3 Nc2 d3 Qe1+ f2 Nd6 h2 Bh3 Ne7 g8R Nd5 g7 Ne3 g6 Bf5 Re8 Nf1 g8R Rh7 Re5 Rg7 Bg4 Qh4 Rbe8 Qh8 N2e4+ Kg2 Be3 d2 Bd4 d1R Bc3 Rb8 Ba5 Rd4 Bb6 Rc8 Ba7 Rd8 Ng3 Bd3 Bd7 Rb8 R8e6 Re8 Nge4 Kh3 Rg1 h1Q Ra1 Kh2 Rf8 Qf3 Rff6 Rf7 g7 Rfe7 g8Q Rg7 Qf8 Qf4 Qe7 Qf3 Qd8 Qf4 Ka2 a3 Kb3 a2 Ka3 Qg3 Rf3 Qf4 Re3 Qf3 Nf5 Qf4 Ra6 Qf3 Nfd6 Qf4 Rb1 Qf3 Ra5 a1Q+ Kb3 Qf4 Rd1 Qc1 Ka3 Qd2 Ra1 Qff8 Rf3 Qdf4 Re3 Q8f5 Rg5 Qf3 Rg1 Q5f4
3NqQB1/1Q2P3/p2B1nq1/B1q1Q1N1/Pp1nRb2/2B4p/1P1q1r1k/B3RK2 w - - 0 1 illegal: Other
6k1/1B2bppb/Q6R/r5P1/b1QNRnn1/pB1N1N2/n1BP1P1K/BB2n3 w - - 0 1 illegal: No proof kernel
3bQbQ1/1p2p3/1BBR3Q/2N2NPR/rP1BP2B/r3p1K1/2q4q/bb3kB1 w - - 0 1 illegal: Other
8/pPpnk3/bNPN2Qr/N1R2P2/NB1Kq1p1/1B2nrN1/b1p1Q3/3B1R2 w - - 0 1 illegal: Other
nr3kB1/n4ppR/4QRn1/2Npp1Q1/1P2P1BB/3N3K/b1RB1P1q/2b1B3 w - - 1 2 legal: proof: b4 b5 c4 a5 cxb5 h5 g4 c5 gxh5 c4 a4 Ra7 b6 Rc7 d3 Rc5 dxc4 Rb5 axb5 Rh6 c5 Rh8 h4 d5 c6 a4 h6 a3 h5 a2 b7 e6 h7 Ne7 b6 Qd7 c7 Nbc6 b8B Ne5 b7 Nf5 h6 Ke7 Qd2 Nc4 Nh3 Nh4 Nf4 Qd8 Nd3 Na5 Nc3 Nc4 Ne4 Ne3 Nec5 Ng4 Qg5+ Ke8 Bd2 Qd7 Rc1 a1N Rc2 Rg8 h8Q Ng6 h7 Qa4 Rh6 Bd7 c8B Ne3 Bf4 Qa7 b8B Nc4 e4 Qa8 Be2 Be7 Kf1 Nb6 Kg2 Ba4 Bg4 Bb3 Kh3 Ba2 Be1 Kf8 Bfd2 Nb3 Bg3 e5 Bh4 Nd4 Bcf5 Nc6 Be6 Bd8 Bef5 Nge7 Re6 Na7 Rf6 Qc6 Bg6 Na8 B6f5 Ke8 Bg6 Rf8 B6f5 Ng6 Qg8 Bb6 h8R Ke7 Rh7 Rb8 Qc8 Qe8 Rc1 Qh8 Qe6+ Kf8 Rc2 Nc6 Na6 Be3 Nac5 Na7 Rh6 Ne7 Bh7 Ng6 Bg8 Qh7 Rh5 Qh6 Qgf5 Qf4 Rh7 Qh6 Qg5 Qh5 Bc3 Bc1 Bcd2 Qh6 Qgf5 Qf4 Qg5 Qh2+
N5B1/1KB2Q1B/q3RPR1/ppB5/2BrNp1p/PP2Q3/bbr3nN/3kr3 w - - 1 2 legal: proof: f4 d5 h4 e5 fxe5 g5 hxg5 f5 c4 f4 cxd5 Nc6 e3 Nd4 e4 Nf5 exf5 Ke7 Rh3 Kd7 Rh1 Ke8 Ke2 Kd7 Kf3 c5 Ke4 h5 g4 a5 d4 b5 d6 Kc6 d7 c4 a3 c3 d5+ Kc5 b3 h4 g6 c2 d6 Qe8 d8Q Ra7 g5 Re7 d7 Rhh7 e6 Bg7 f6 Rh8 Qe2 Nh6 Nc3 Rg8 Nf3 Nf7 Be3+ Kd6 Nh2 c1R Bc5+ Kc6 Qe3 Bh6 g7 Qf8 g6 Rc2 Qe8 Ne5 Rg1 Nf3 Bc4 Ne1 Qf7 Ng2 d8B Re8 e7 Bf5+ Kd4 Be4 Bc7 Rd8+ Ke5 Rd4 e8N Bd3 Ne4 Qd6+ Kf5 Rh8 g8B Bf8 g7 Rh5+ Kg4 Re5 Kf3 Be7 Bh7 Bd8 Bb8 Bc7 g8B Bb6 Nc7 Re8 Na8 Bc7 Nd2 Re7 Qf2 Re1 Qe3 Bg6 Ne4 Bf5 Bca7 Bb6 Bc7 Bg6 Nf2 Kc5 Rd1 Bf5 Rd3 Bg6 Ne4+ Kc6 Qe2 Rd5 Ng3 Kc5 Ngf1 Rb2 Qf8 Ne3 Ng3 Bf5 Rd2 Bb1 Qf7 Rc2 Ke4 Ba2 Qf3 Rd3 Re2 Rd5 Nh5 Rd3 Rg6 Ng2 Ng3 Rdd1 Kf5 Kd4 Re6 Rd3 Qe3+ Kc3 Ke4 Bd4 Bab6 Kb2 Bc5 Rdd2 Qe8 Kc1 Qf7 Qa6 Kd5 Kd1 Ne4 Rd3 B7b6 Bb2+ Kc6 Rd4 Kc7 Rh1 Kb8 Re1 Bc7 Qd6 Kb7 Qa6+
r1q4Q/Q3n1N1/3N4/2PRQpRB/3NpK2/3b2Qp/2QPpP1r/2r1knB1 w - - 0 1 illegal: Other
1B1k1b2/B1p2pP1/1Rn2RQQ/Nr1B1NB1/2n4R/qP1p4/p1r2Pn1/2K3B1 w - - 0 1 illegal: No proof kernel
BB3k2/Rr1b1p1p/N1Q2P1P/1Nqn1rP1/2N1KB1q/8/p2NRNpQ/1b6 w - - 1 2 illegal: No possible last move, all moves rejected
N1kN1n2/4r1q1/5P2/1QrRKp1B/Q1pQ1B2/1p1P2R1/2PpN2n/q1NN2b1 w - - 0 1 illegal: No proof kernel
1rnBQ1r1/B1R3B1/R2rB2b/ppN3pN/1Pp3rR/1P2k3/2P3B1/1Q2qK2 w - - 0 1 legal: proof: d4 g5 g4 f5 gxf5 e5 dxe5 b6 h4 Ne7 h5 Ng6 hxg6 Bb7 Bh3 Bf3 Bf1 Nc6 b3 Bd5 b4 Bb3 axb3 Ne7 Rh5 Ng8 Rh3 Nf6 Rh1 Ng8 e4 Ke7 f4 c5 g7 h5 e6 Kf6 e5+ Ke7 f6+ Ke8 f5 d5 f7+ Ke7 Ra6 c4 Nc3 h4 Ne4 b5 Be3 h3 Nc5 d4 Ne2 d3 Qb1 h2 Bg2 d2+ Kf1 Rc8 Nf4 Nh6 g8B Qd5 Nh5 Rb8 Bg1 Qe4 f6+ Kd8 e7+ Kc7 e8R Nf5 e6 Nd6 e7 Bh6 f8B Nc8 Bd5 Rg8 f7 Qe6 Bg7 d1R+ Kf2 Qe5 Be6 Rd6 f8B Qe4 Kf1 Qe5 Rb6 a5 Ra6 Qg3 Rd8 Qh4 e8Q Qe4 Ra8 Kb6 Rd7 Kc6 Bf5 Kd5 Rc7 Rh8 Be7 Rg8 Nf6+ Ke5 Bd8+ Kf4 Be6 Qe3 Ra6 Qe5 Bf2 Qa1 Rg1 h1R Bd4 Rh3 Rh1 Rg3 Rh4+ Rg4 Na4 Rf8 Ba7 Rg8 Nc5 Ke3 Nh5 Qc3 Rb7 Qd2 Rc7 Qe1+
rbr3qR/3RB3/2p5/NnR5/rN1K3Q/nQ2np2/B1PkbP1P/3bN1NN w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 Nf3 Ke7 Kd2 Ke6 Kd3 Kf5 e4+ Kg4 b4 f5 b6 g5 b7 a5 b5 d5 e6 f4 e5 c6 b6 d4 e7 a4 e8N a3 e6 a2 h6 Qd6 e7 Bd7 h7 Qe6 Nbd2 Na6 b8Q Qf7 b7 Nc7 Ba3 Nf6 Ng7 Nfd5 e8N Ne3 Nf5 Bd6 Ng3 Qf8 Rb1 a1R Rb5 Ra2 Ke4 d3 Bb4 Be5 Nd6 R2a4 N6c4 Qg7 Na5 Rc8 h8R Qg8 Qe2 Be8 Bg2 Bh5 Rd1 Bd6 Nh1 Be5 Nb1 d2 Nc3 Bd6 Qc4 Be5 Rg1 d1B Ne1 Bd6 Ne2 Be5 Qf7 Bd6 Rd5 Nb5 Kd3 Na3 Qh7 Be5 Rd7 Bd6 Kc3 Bc7 Be7 Bd6 Nd3 Bc7 Bh3+ Kf3 Be6 g4 Ba2 g3 Qh6 g2 Qh7 Bg4 Qh4 Nec4 Re1 g1N Kd4 Bd6 Nc3 Bc7 Re5 Bh5 Ne2 Bg4 Rc5 Ne3+ Rc4 Bd6 Qa7 Bh5 b8N Bg4 Na6 Bb8 Qb7 Bh5 Nec1 Bg4 Qb3 Ne2+ Kc5 Bh5 Nab4 Nc3 Ne2 Ncb5 Rc3 Kg2 Ne1+ Kf1 Ng1 Bhg4 Ng2 Bge2 Rc4 f3 Ne1 Bd3 Nh3 Ke2 Ng1+ Kd2 Rc3 Nc7 Kd4 B3e2 Rc5 Ncb5+
1r1k1NR1/1q1qpbbr/2B1P2Q/n3P1R1/Q3rQK1/4N1bp/1B5P/BQ1Q3n w - - 0 1 illegal: No proof kernel
N2Rn3/rbp1Q3/1K1QBrnb/1NPR4/1rRBpB2/n3Pk1B/2q2Pq1/7B w - - 0 1 illegal: Other
1n3Q2/4rQ1Q/1QB1r3/pq1N2Pq/PB4pb/1kn3Bb/r2KQRP1/1b1N3R w - - 0 1 illegal: No proof kernel
1QqR4/1n4rP/p2pN2k/1rQbN2N/P7/n1qPR3/K1Rbn1Rb/1R2B2B w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 c5 bxc5 Nf6 g4 Ng8 gxh5 Qa5 Qe2 Qb6 Qd1 Qd8 f4 Kf7 c4 b5 h4 e5 a4 g5 f6 a6 c6 g4 f5 b4 c7 e4 h6 b3 h5 e3 c5 b2 c6 d6 d3 g3 Na3 b1N Bg2 e2 Ra2 Nd2 Nh3 Rh7 Qb3+ Nc4 Nf4 Rg7 Bd2 Be6 c8Q Rg4 c7 Na5 Nc4 Rg7 Ne5+ Ke8 f7+ Ke7 Rf1 Kf6 Bh1 Kg5 f6 Be7 f8R g2 f7 Qd7 Rd8 g1B f8N Bd5 N8e6+ Kf5 Bc3 Nbc6 Kd2 e1Q+ Kc2 Bg5 Kb2 Na7 Ka3 Rb8 Rg2 Rb4 Ka2 Ne7 Qc4 Bh2 Qb8 Kf6 c8R Nf5 Rc5 Qc8 Rc7 Qe3 Rb1 Qc1 Be1 Nb7 Rc6 Rb3 Qb4 Qd2+ Rc2 Nd4 Qc5 Kf5 h7 Kf6 h8R Qc3 h6 Ne2 Qcc7 Nb5 Qc5 Na3 Rhf8+ Rf7 h7 Rb5+ Qc4 Kf5 Nh5 Bd2 Rfg8 Re7 R8g3 Rf7 Re3 Rg7 Ng4 Kg6 Ne5+ Kh6 Re8 Be4 Rd8 Bf3 Qc5 Bd5+
1N2Bn2/qr1Nbb1k/2pn1p2/4q2B/3BN1rQ/Nr4RP/N1P1RP1Q/2K4q w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 Kd2 d5 e4 g5 b4 a5 h3 a4 h6 a3 b6 a2 h7 f6 b5 Kf7 b7 Kg6 b6 g4 e6 c6 e7 g3 e8B+ Kh6 e5 d4 e6 d3 e7 g2 Ne2 g1Q Na3 Kg7 Bb2 Nd7 b8N Ra7 b7 Nh6 Nc1 Qb6 Be2 Rg8 Bd4 Nf5 B2h5 Nd6 Qe2 Qh2 Re1 Qh1 Qe5 Qa6 Kd1 d2 Qh2 Qa4 Rb1 a1Q Na2 Kh6 Rg1 Rg4 Re1 Qc3 Rb3 Qc5 Rg3 Qe5 h8N Kh7 Nf7 Nc5 Nd7 Ne6 b8N Rb7 Nb1 Qa7 Ng5+ Kg7 Ne4 Kh7 Na3 Rb3 Be3 Ba6 Bd4 Bc4 Bef7 Bd5 e8Q Be7 Qc8 Rb7 Be8 Nf8 Qc7 Bf7 Qa5 Qf4 Qg5 Qe5 Qh4 Rb3 Ke2 Rb7 Ke3 d1R Re2 Rdb1 Kd3 Qf3+ Kd2 R1b3 Kc1 Qh1+
2Rn4/2nNnQ2/2n3pN/2Q2Bn1/1p4q1/kPK1P1P1/NNRQNb1B/r2r1b2 w - - 0 1 illegal: No possible last move, all moves rejected
1Bb1n3/1rp1b3/q2pQ3/k1PPP1B1/n1RB4/2Knrn1Q/3N2B1/r1N1BR1N w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 gxh5 Rh7 a4 Rh6 axb5 Rh8 d4 g5 Kd2 a5 h4 f5 e4 f4 b4 a4 c4 a3 e6 g4 d5 f3 b6 a2 e7 g3 h6 f2 h5 d6 b7 Kd7 e8N g2 h7 Qf6 h6 Qg7 c5 Qe7 b5 Kd8 b6 Qh4 Qf3 Bf5 Ng7 Qe7 Ne2 g1N Rh4 Ra3 Nh5 Na6 b8Q+ Bc8 b7 Nb4 Nhg3 Nd3 Bg2 Nf6 Nh1 Ne8 Qh3 f1N+ Kc2 Ng3 Bg5 Qf6 Nd2 Be7 Rf1 a1R Nc1 N3e2 Rhf4 Rf8 h8B Nc3 h7 Na4 Rh4 Qg6 Bd4 Nf3 h8B Rb3 e5 Qe4 Qa8 Qe2 b8B Rb7 Qa6 Rf4 Bhf6 Re4 Qa8 Re3 Qe6 Nb6 Qa3 Na4 Rf4 Ndb2 Bh4 Qa6 Bfg5 Nd3 Qb3 Bd7 Rg4 Kc8 Re4 Ra7 Qc3 Kb7 Be1 Bc8 Rh4 Qb5 Rf4 Ka6 Qa3 Rb7 Qb3 Nab2 Kc3 Ka5 Bh6 Re2 Bdf2 Nd4 Bg5 Nb4 Rh4 Qc6 Bfe3 Na4+ Kc4 Qb6 Bg1 Qc6 Qbh3 Nf3 Kb3 Qb6 Rc4 Qa6 Bd4 Nd3+ Kc2 Nb6 Kb3 Re3 Kc3 Na4+
2N2Krk/p4b2/3rN2B/N1B1Nn1P/PbR1p1B1/n3PrN1/Q1Qnq2r/5R2 w - - 0 1 illegal: No proof kernel
4n3/1N3rnp/B1R1Q3/pQrP2bP/1NNkr1b1/P1N4B/3K2qB/3N1rRn w - - 0 1 illegal: No possible last move
k4n1K/P1BNpN1p/Q2bQ3/2r1Q1RR/4P2P/1r1bq2b/1N1b2QQ/1r1B1n2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 Kf2 Kd7 Ke3 f5 Kf4 b5 g4 c5 e4 Kc7 d4 Kb7 a4 b4 d6 b3 g6 b2 Kg5 c4 d7 c3 a6+ Ka7 d5 c2 a5 f4 g7 f3 d6 f2 Qd2 Nh6 g8Q Nc6 Be2 f1B Bd1 Bg2 Nc3 b1R Qe6 Bb7 Na4 Qb6 d8Q Rb2 d7 Qf2 Qc7 Rb1 d8N Rb4 Nf3 Bf1 Nb2 Rd4 Ne5 Qg3 Nd7 Qa3 Nf7 Rb8 Qce5 Ka8 a7 Bc8 h4 Rd3 Qdh2 Qb3 Bf4 c1B Rg1 Bg7 Kh5 Qc3 g5 Nd4 g6 Nhf5 Rg5 Ne3 Rb1 Bf6 Kh6 Bd2 g7 Qa3 g8Q Rdb3 Rh5 Bd3 Qgg2 Nf1 Ra1 Bg5+ Kg7 Bb4 Rc1 Bd6 Rc5 R8b5 Rd5 Rc5 Bg3 Bd2 Bf4 Bca6 Bg3 Rhc8 Rg5 R8c6 Kh8 Bc8 Bf4 Rc1 Rb5 Rb1 Rc5 Kb7 Rd5 Rc5 a6+ Kc6 a8Q+ Kc7 Qh6 Ne6 a7 Nf8 Qhe6 Rc2 Ra5 Rc5 Qb8+ Kc6 Qb5+ Kc7 Qbc4 Kb7 Qa6+ Ka8 Be3 Rcb5 Bb6 Qc5 Bc7 Qe3 Rh5 Rc5 Q5f6 Rc6 Rag5 Rc5 Qff5 Bb7 Qfe5 Bd5 Qg6 Be6 Qh6 Bf5 Qhe6 Bh3
3rR1r1/1R2p1QB/1Np1n1n1/k3P1Q1/rq2NPbR/B3rN2/1bPR2R1/4bK2 w - - 0 1 illegal: No proof kernel
QB5n/QR3rk1/1r1Qqpp1/5b1b/QQ5b/rB2N1PK/2b2P1P/NR4Nn w - - 0 1 illegal: No possible last move
bR1rRQB1/1Brkq3/N6p/4p1BP/P3P1K1/1BrN1r2/1n1bqRn1/6BQ w - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 Kf2 e5 Kf3 f5 a4 c5 h4 b5 g4 b4 e4 h6 d4 b3 a6 b2 h5 f4 d6 c4 d5 c3 d7+ Ke7 g6 c2 d6+ Ke6 g5 Qe7 d8Q Qb7 a7 Rh7 g7 Qf7 d7 Bb7 g6 Bd6 Be3 c1R Nd2 b1R Ba6 Rc6 Nh3 Qe8 Ra2 Ne7 Nf2 Rb3 Nd3 Nf5 Bg1 Rcc3 Kg4 Qe7 Qf8 f3 d8B f2 g8B+ Kd7 g7 f1Q Qf3 Bd5 Bb7 Na6 Bf7 Qd1 g8B Nh4 Rh3 Qe1 Qh1 Ng2 Rf3 Rac8 a8R Nb4 Rb8 Qe2 Rb2 Ra3 Nb3 Bc5 Rb1 Be3 Rf1 Bd2 Rf2 Bc6 Bc4 Rh8 Bcf7 Rc7 Nbc5+ Kd6 Na6 Kd7 Nc1 Nd3 Bb3 Nb2 Nd3 Qh7 Bf6 Qe7 Bg5 Kd6 Bc8 Ba8 Bb7 Kd7 Qg7 Qf1 Rff8 Qe1 Rfe8 Qf1 Bgc4 Rf8 Bg8 Qe2+ Kg3 Rf3+ Kg4 Ra1 Qf8 Rac1 Qh4 Rc8 Qh1 Rd8 Qf7 Rc7 Qf8 R1c3
2b1R3/2k1Bn2/B2r1b1K/1Br1pp2/4PP1B/1PnRq1bQ/2N1B2b/QQ2q1N1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 f4 Kd7 Kf2 c5 Kf3 e5 Kg4 f5+ Kh5 a5 g4 h6 e4 a4 d4 a3 b6 a2 g6 c4 g7 c3 d6 c2 b7 Ra4 d5 Qe7 g5 Nc6 b8Q Rb4 g6 Rh7 Bb5 Rc4 Rh3 Rc5 Na3 Qd8 b3 Ne7 g8B Qb6 Qa8 Bg7 Rd3 Bf6 g7 Qa7 Bd2 c1B Bb4 Bd2 Nc2 Be1 Qb1 Bg3 Ba6 Kd8 d7 Kc7 Be1 Bh2 Bh4 Nd8 Be6 Qb6 g8B Nf7 Bb5 Rg7 Qa4 Rg6 d8B+ Kb8 d6 Nd5 d7 Nc3 Be7 Kc7 Bec4 Bg3 Qd1 Bh2 Rc1 a1B Ba6 Bb2 Bcb5 Ba3 Ra1 Bc1 Qf1 Bd2 Qh3 Be1 Qd4 Beg3 d8Q+ Kb8 Q8d5 Kc7 Qa4 Qa7 Qa2 Qb6 Qb1 Rc6 Rd1 Nd8 Qc1 Rc5 Bg5 Bh8 Qf1 Be6 Bb7 Rc4 Ra8 Qe3 B7a6 Rc5 Nh3 Bg1 Qa1 Bd7 Qf7 Rd6 Qh7 Bf6 Bgc4 Nf7 Re8 Bc8 Kg6 h5 Qh8 h4 Be2 Be1 Rd3 Bef2 Qfb1 Be1 Nf2 h3 Qh7 h2 Nh3 h1Q Qh4 Nd8 Kh6 Bg3 Qg4 B1h2 Bh4 Qhc1 Ng1 Qe1 Qh3 Nf7+
N1Nr2RN/2b1n3/4n1NB/P5B1/R4p2/pQr1pb2/PrQ1qPB1/k2N1n1K w - - 0 1 illegal: No proof kernel
1n2q1K1/3r3r/k1bBpQp1/1N4QR/B1PNP1Pb/RpbB4/2B3Rn/1B4r1 w - - 0 1 illegal: No proof kernel
N1b3NQ/2prn3/BN2Rb1K/2P3P1/p1Bp4/b1Br4/QqBPr1R1/2k1nB2 w - - 0 1 illegal: No proof kernel
3N1Q1B/1p2P1R1/5K2/pR4r1/qPRp1Q1Q/nk1brNR1/2bP1bR1/1rn2B2 w - - 0 1 illegal: No proof kernel
Q5KN/NNp1B1R1/B1b2PR1/R4N1q/pnPp2Q1/kN5b/Pr3rr1/b3n3 w - - 0 1 illegal: No proof kernel
kn1KQ3/1r4Rp/B1NB1Qp1/2N2b2/NnQ2nP1/3r1p2/1P3b1P/1NNq1Rb1 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 Kf2 Kd7 Kg3 a5 Kf4 f5 g4 c5 e4 Kc7 d4 Kb7 b6 g6 e6 c4 Ke5 a4 d6 f4 e7 a3 e8Q f3 d5 c3 d7 c2 Ke6 a2 e5 Bg7 d6 Qh4 Qe2 Ra6 Qf7 Nc6 Bf4 c1B Qc4 Qe1 Qf6 Qf2 Ne2 Kb8 b7 Bd2 Nc1 Ka7 b8N Ra5 Na6 Be1 Nc5 Qg1 Na4 Nb8 Be2 Qd4 Rf1 Qd1 Kf7 Bf8 Ke8 Ka8 d8N Ra7 e6 Rb7 e7 Bf2 Nc6 Bf5 d7 Bh6 Bc7 Bhe3 Kd8 Bb6 e8Q Ne7 Bd3 Nd5 Be2 Bbc5 Bd6 Rf8 Qc2 Nf4 Ba6 Bg1 Qc4 Rh8 Re1 Rf8 Re7 Bcf2 Rg7 Rf7 Nb4 Re7 Nbd3 Re3 Ndc5 Rd3 Ke7 Rbb3 d8N Rb4 Nc6 Rbb3 Nd2 Rb4 Rb1 a1N Kd8 Nc2 Ra1 Rb6 Nb1 Nb4 Ra3 Rd5 Re3 Rd2 Re1 Rb7 Rf1 Rd3
BnN2n1B/3Br1pR/1Q2ppQ1/1q2PP2/3Q3Q/QRrN2K1/1Pb5/b1qk2n1 w - - 0 1 illegal: Other
2BQn2N/p1b1p2Q/n3P1R1/P3rKNq/4r1Pp/1q3N1q/2k1NBN1/1b3R1R w - - 0 1 illegal: No possible last move
R1N5/2Np1q2/r4p2/2NpBQR1/3P1nb1/qRbQRPr1/R2P2Bn/1K1k2n1 w - - 0 1 illegal: Other
1KB3r1/2NRNP1B/1pRb1N1p/pb4B1/Q1q4P/PrqQ4/bN3N1k/1n3n2 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 Ke7 g4 Kf7 gxf5 Ke8 Kd2 Ke7 Ke3 a5 Ke4 g5 Kd5 b6 e4 g4 h4 h6 c4 g3 f4 g2 c6 d6 f6+ Kf7 f5 Ba6 e6+ Ke8 a3 Rh7 f7+ Ke7 c7 Kf6 c8N Nd7 Kc6 Ke5 c5 d5 f6 d4 e7 d3 e8N d2 Bd3 Kf4 e5 Kg3 e6 Ra7 e7 Ra8 Nh3 g1Q Nc3 Qh2 Qa4 d1B Nc7 Qe2 e8N Rh8 Nf2 Bb5+ Kb7 Bd6 f8Q Ne5 f7 Ng4 c6 Qf6 Ne7 Nh2 Bg5 Rc8 Rc1 Bb3 Bh7 Qc4 Ncd1 Nf1 Nb2 Qfc3 Nf6 Ba2 Qd8 Kg2 Rg1+ Kh2 Qd7 Re8 Qf5 Rd8 Qd3 Rd7 Kb8 Rd8+ Nc8 Ne7 Rg4 Rde8 Rd4 Nd5 Rc2 Re3 Rc1 Bf8 Ne7 Rg8 Rc2 Q3b3 Rc1 Nc3 Rd7 Qbb4 Na8 Qbc5 c7 Nb1 c8B Qe5+ Nc7 Qec3 Re1 Rg3 Re6 Rf3 Rc6 Rg3 Ned5 Bd6 Ne7 Q3b4 Qd5 Rb3 Qd3 Qbc3
Q2Q4/1rqP1b1R/1n1r1pNR/5K1B/q2N2p1/2b1BPNp/QnQ1Q1Pk/3b4 w - - 0 1 illegal: No proof kernel
qrNK3B/3b4/1PQR2Qp/7R/2R2pNR/n1q1RP1B/k2p3P/bNn1r2n w - - 0 1 illegal: No proof kernel
3bn1NQ/R4pr1/2p3Pb/2Q1QKB1/3B1p1n/1QP4B/qN2RP2/kr1Qqb2 w - - 0 1 illegal: Other
QRqn4/2Rq1p1Q/1b1Nrp1B/rp1BN3/kP2q1KR/3R2P1/5PbQ/1n4R1 w - - 0 1 illegal: Other
2q5/2Npr1k1/1K2rq2/4b1N1/qB3N1B/Pp1P2QB/1P2p1R1/NN1bnnQR w - - 0 1 illegal: No proof kernel
bQ1n4/N1PR3r/1Qp1b3/R2pq3/2N1Nn2/BpBP3B/1bPBk3/rKBq4 w - - 0 1 illegal: No proof kernel
R3q3/Nbq1QpKN/2Q1pR2/rN1Bk2n/p3N2b/R1P1nP2/P2N4/2b2rB1 w - - 0 1 legal: proof: e4 d5 exd5 c5 g4 h5 gxh5 Qd6 b4 Qc7 bxc5 Qd8 Ke2 Kd7 Ke3 a5 Kf4 b5 Kg5 a4 d4 g6 h4 b4 h6 b3 d6 Ke6 h5 b2 c6 Nd7 d5+ Ke5 h7 Rb8 h6 Rb5 c7 Bg7 Na3 b1Q Rh3 Rb4 Nb5 Rf4 Bc4 Qe8 Qf3 e6 Be3 Qb4 Rf1 Nf8 d7 Qc3 d8N Re4 d6 Qa3 d7 Bb7 c8N Rf4 Nca7 Rh4 Qc6 Qc5 Bd5 Ba6 Nb7 Ne7 d8Q Nf5 N7d6 Nd7 Qe7 Bb7 Ne4 Rf4 Rg3 Rg8 h8R Nf6 h7 Nh5 Rh3 Qc3 Bb6 Qa5 Ra3 Ne3 c3 Bf6+ Kh6 g5 Bc5 g4 Nf3+ Kf5 Bd4 g3 Nfd2 Rg5 Rg8 g2 h8N g1B Ng6 Rf3 Nf8 Qc7 Nh7 Bh2 Bb6 Ke5 Bc5 Rgf5 Bb6 Bh4 Rf8 Nf6 Kg7 Bf4 Bc5 Qed7 Ra8 Qe8 Rg1 Rh5 Rg6 Rg5 Kh6 Nh5 Rf6 Rfg3 f3 Rg1 Bb6 Rf1 Nb1 Nd1 Bg1 Bc1 Nbd2 Rg4 Nc5 Rc4 Ne4 Rc5 Nd4 Ra5 Ndb5 Ng3 Kg7 Ne3 Qd8 Rf2 Qdd7 Rf1 Qe7 Nh5+
Q6N/p1pNnn1Q/3n1KN1/2P2nN1/Pb6/BN1rkp1P/1q1R2br/1Q1B2R1 w - - 0 1 illegal: No proof kernel
n4k2/n2pb2B/5rb1/1p1qN1N1/1B1R1R2/bNQP1p2/NPQPrKbB/5N2 w - - 0 1 illegal: Other
3k4/1pb1RR2/rN1nKQQ1/7p/3n2B1/1qRb2R1/PPpbR2P/BN3rQb w - - 0 1 illegal: Other
1Nr2nN1/K1k3Bp/p1pn1RQP/3B2B1/1Q2Nb2/nR6/P1P1q1NN/q1rq4 w - - 0 1 illegal: No extended proof kernel
2Bn1NrB/3K4/1N1q1bQ1/1pr1kbQ1/bNpb1N2/6Qp/1PPR2RP/6qN w - - 0 1 illegal: No possible last move
4Qb2/p1R1Q1b1/P2Bp1N1/1Q1B2QR/Np1k4/pP1qrb1P/4r3/K1RnQ1n1 w - - 0 1 illegal: Other
n1r1R2B/2pBq1np/1p2b3/1BPQP1KN/1b1r3p/1BBN3P/2RQ1b1R/6k1 w - - 0 1 illegal: Other
1B1b2K1/3b2Q1/k1NB1BB1/1N1np3/2QR3r/1B1pqnPp/rp1PP2R/r6R w - - 0 1 illegal: No proof kernel
3RBr1k/1Qb2QR1/1pqr1p2/7N/p3rBQ1/1P4np/1KP1b1RP/2R1nNR1 w - - 0 1 illegal: No proof kernel
1rK3br/bNB1QQ1p/pp3q1p/P1N1n3/5B2/3nB1P1/3BR1RP/1r1N1B1k w - - 0 1 illegal: Other
n2k2K1/2N1NR1R/p2pp1N1/2BQ1nn1/4r1b1/r4NP1/p2PPN1q/Q2R1Bb1 w - - 0 1 illegal: Other
Rq4N1/1Pp3Q1/p1b1p2R/1RP2NRB/1nqn2rK/bprRP3/1B6/1Q1N1k2 w - - 0 1 illegal: No proof kernel
1n3Q2/pRRq1N1p/Pp3rpP/2RnB1R1/1BK2Q2/rP4r1/B4bn1/R1N3k1 w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 Nd7 cxd5 Nb8 g3 Kd7 g4 Ke8 f4 Nf6 g5 Bd7 g6 Ng8 f6 Be6 f5 Bf7 gxf7+ Kd7 Ke2 Kd6 Kd3 Kc5 a4 e5 h4 g6 d6 c6 h5 b6 h6 Be7 f8R Qc7 f7 Na6 a5 Bd8 d7 Be7 d8R Rc8 f6 Ra8 Ne2 Qb7 Rb8 Nc7 a6 Bd6 Rfc8 Be7 f8B e4+ Kc3 e3 d4+ Kd5 f7 Ke4 d5 Kf3 d6 Kf2 d7 c5 d8R c4 Qd6 Bh4 Nd2 Nf6 Rg1 Nd7 Rg5 Nd5+ Kd4 c3 Nc4 c2 Ne5 Qc7 Rb7 Rg8 Bd2 c1R Bb4 Rc3 Bg7 Ra3 Nc1 Rf8 Bc4 e2 Ba2 e1N b3 Ng2 Bh8 Kg1 Re8 Qb8 Rc5 Qc7 Rc8 Bf2+ Kc4 Qd8 Bg7 Qe7 R8c6 Rae8 Rcc7 Nb8 Qf6 Qd7 Qf4 Re6 Bf6 Rfe8 f8Q Rd6 Nf7 Re3 Bg7 Rg3 Be5 Rf6
3BkN2/1Bb1Nr2/2rrRQ2/B1PP1qR1/4pnBK/2B1rbB1/1P4B1/3n4 w - - 0 1 legal: proof: h4 b5 e4 f5 exf5 g5 hxg5 c5 c4 d5 cxd5 b4 a3 Nd7 axb4 Nb8 bxc5 Bh6 Ne2 Bg7 Ng1 Bf8 g4 a5 d4 h5 f4 e5 Kf2 a4 Kg3 a3 d6 e4 d7+ Kf7 g6+ Ke7 g5 a2 f6+ Ke6 g7 Kf7 f5 Ne7 Nh3 Ra7 Nc3 Rc7 Bd2 Rh6 Qf3 Ng6 Nf4 Ba6 Ne6 Nf4 Bg2 Be2 Rag1 a1R Kh4 Rc6 Nd5 Nh3 Ba5 Bd1 Ne7 Qe8 d8B Qd7 g8B+ Ke8 g6 Be2 g7 Qd5 f7+ Kd7 f6 Rf1 Bh7 Qf5 g8B Na6 d5 Bg7 f8B Nb4 f7 Be5 Bg7 Bc7 f8B Nd3 Bgc3 Ndf2 Bfg7 Nd1 Bge5 Ke8 Nf8 Nf4 Be6 Rf2 Bc8 Rhd6 Bb7 Rf1 Qf2 Bf3 Bg8 Re1 Be6 Re3 Rh3 Qh7 Bg4 Qf7 Kg5 h4 Rhh1 h3 Kh4 h2 Qf1 Nh3 Bg3 Qf5 Qf2 Re1 Qd4 Nf4 Qe5 Re3 Qf6 Nf2 Ra1 Nd1 Rg1 Nh3 Ra4 h1R Rb4 Qe6 Rb6 Nf4+ Kg5 Rh7 Ra6 Rf7 Kh4 Bb8 Rb6 Qf5 Ra6 Rc8 Rc6 Bc7 Ra6 Rd7 Re6 Rd6 Bh2 Nh5 Bh1 Ng3 Bh5 Ne2 Rg5 Bb6 Bg2 Rcc6 Bg3 Bc7 Bg4 Nf4
1K1Bb1b1/N4BBB/2Bqrpb1/QP1P4/1BN2k1B/1Pqb2b1/6RR/6n1 w - - 0 1 illegal: No proof kernel
1KNR1qn1/2Q2b1B/1N4N1/1Pr1b1B1/N3R1N1/2P2nk1/1N4PN/1nqr2qb w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 d5 Kd4 h5 Ke5 a5 f4 d4 b4 e6 g6+ Ke7 c3 a4 c6 h4 b6 h3 f6+ Ke8 b7 h2 g7 Kf7 b5 Kg6 f5+ Kh7 c7 d3 f7 a3 f6 Kg6 Nd2 Kg5 Ngf3+ Kg4 Nc4 a2 Bg5 d2 Nb2 Ra6 Bd3 Rh5 Bh7 Kg3 Re1 h1B Nh2 Rd6 Re4 Na6 b8N Nb4 Na6 Nc2 Nc5 Na3 Nca4 Nb1 Qb3 d1Q Qc4 Bb7 c8N Qg1 Qc7 Be7 f8N Rd1 f7 Bd5 Nd7 Bf6+ Kd6 e5 f8N Bf7+ Kc6 Qe7 Ng6 Qf8 Bc1 Rg5 Kb7 Rf5 Kb8 Rg5 Rf4 e4 Ndb6 e3 Re4+ Be5 Bd2 e2 Be3 Nf6 g8N e1N Nh6 Nf3 N6g4 Ng8 Bd2 Na3 Rb1 a1Q Rc1 Rh5 Bg5 Nb1 Rc2 Qaa3 Rd2 Qa1 Rd8 Qaa3 N2c4 Qc1 Ncb2 Rh6 Nf4 Rc6 Ng6 Rc5
3NrR1B/4n3/N2n1BbB/B1Q2rbR/P1B2P1b/1K1bB3/B1r1P2r/6qk w - - 0 1 illegal: No proof kernel
1r4bn/1qn1NRB1/N1Pp3n/1bQ1N1r1/3N4/1P1PR2q/2b2N1K/kN2NB2 w - - 0 1 illegal: No extended proof kernel
1BnBrB2/P2bq1r1/4N1qQ/K2q2bN/B1R2B1p/3P2P1/nB3k2/1Br4R w - - 0 1 illegal: No proof kernel
1N1q1r2/2BB2B1/1B3P2/b1QnB1Br/3pB1bR/1b1P4/K1R1Pq1b/2n1kN2 w - - 0 1 illegal: No possible last move
N1B3bb/1pR3n1/P2r4/PP1b1B2/2Rb1K2/qk1B3B/4B1QB/2qnn1BN w - - 0 1 illegal: No proof kernel
b2k3B/1p1qnP2/2Q3Pq/1K1nr3/rR1nBB2/NP1BRB2/2q1N1BB/7n w - - 0 1 illegal: Other
5B2/1rr2p2/2n1K1N1/bpRPPP1k/1BNbn3/BR1QB3/1b1Bn2B/2q4B w - - 0 1 illegal: Other
Bnb3Nn/7N/2r2qkN/1PPN2b1/1N1R4/1pBN2nr/Rp1QqPK1/7N w - - 0 1 illegal: Other
BBnR2b1/2N2KB1/2nN4/n2Br3/3rQ1pB/rPP3pB/3b1kP1/1RrB4 w - - 0 1 illegal: Other
N4r1R/k1NBPq2/1p3RBr/1BnB1qBB/7p/p2Qr2P/2n4P/5KbB w - - 0 1 illegal: No proof kernel
r7/P3K1BN/p4rkB/1B1bQ1B1/1B1b2Nb/nB1p1pRR/2PPq3/4B1q1 w - - 0 1 illegal: No proof kernel
N4B2/qp1K2B1/B1N2RR1/1P1r2P1/1p1rkB1B/1P2b1qB/p3Q1bq/5B1n w - - 0 2 illegal: Other
k2b1R1R/6q1/1pr2PP1/2pBp1Nn/1K1Rn1R1/2p2rR1/1PR1nB1Q/2N2R2 w - - 0 1 illegal: Other
r1rN3k/n5pN/1Nq4p/3BR1RP/nb1nb3/2PN2Pr/QN1KNB2/b4N2 w - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f4 Kf7 b4 e5 h4 d5 f6 a5 c6 h6 b6 e4 c7 e3 h5 e2 c3 a4 g3 a3 f5 a2 b7 d4 b5 d3 b6 Bd6 Bg2 Rh7 Qc2 Ra7 Nd2 Be6 c8N Qc7 Nf1 Bf4 Be3 Qc4 Bd5 Qa6 Bf2 Qc4 Nd6+ Kf8 f7 Qd4 Nc4 Bd6 Kd2 e1R Ne2 Ne7 Nb2 Nbc6 b8N Bb4 b7 Rh8 Na6 Nc8 b8N Qc4 Nc5 Nd4 Nc6 Ra8 Nd8 Na7 Rh4 Bc8 Re4 Bb7 Re5 Qa6 Rd1 a1B Qb3 Rg8 Qa2 Qg6 Nf4 Re4 Ne2 Rh4 Rb1 Qe6 Re1 Rh3 Rd1 Ke7 f8N Bc6 f6+ Ke8 Ke3 d2 f7+ Ke7 Rb1 d1N+ Kd2 Bb7 Rg5 Qc6 Nfd7 Rh8 Nb6 Kf8 Ncd3 Rg8 N2c4 Nb2 Re1 Na4 Ncb2 Qc8 Bb3 Be4 Be6 Qc6 Bd5 Ke7 f8N Kf6 Nde6 Kf7 Nh7 Rge8 Kc1 Kg8 Nd8+ Kh8 Kd2 Rf8 Nef4 Bf3 Ree5 Be4 Ne2 Rg8 Ne6 Rgb8 Nd8 Rc8
2Bbbk1n/1bKp1Nq1/2Br3p/2qPn3/N1BQ1BrR/5B2/1BpBP2P/1R6 w - - 0 1 illegal: No proof kernel
3r4/2q2Rn1/R2NKP2/4QQr1/1Q2b2b/PN1Pk2q/1N1n3B/N1B2B1q w - - 0 1 legal: proof: c4 a5 e4 c5 g4 f5 exf5 h5 gxh5 d5 cxd5 b5 b4 a4 bxc5 Nh6 Bxb5+ Nc6 Bf1 Nb8 a3 Ng8 Qxa4+ Kf7 Qd1 Ke8 Ke2 Kd7 Ke3 g5 Ke4 e5 h4 g4 f4 g3 f6 g2 Kf5 e4 f7 e3 d3 e2 h6 e1Q d6 Kc6+ d7 Kd5 c6 Kd4 h5 Qeh4 c7 Be7 f8Q Qe1 h7 Qh4 h6 Qh5+ Ke6 Ba6 c8N Qf3 f5 Qb6+ Nd6 Qb2 d8N Qf4 Qg4 Qb4 N8b7 Qa5 Nc4 Bh4 Nbd6 Nd7 Nb2 Qd2 Nf3+ Ke3 Nd4 g1Q Nb3 Qf3 Qb4 Qh5 Ra2 Ndf6 Na1 Qg2 Rg1 Qh3 Rg6 Ne7 Qf7 Rhe8 h8B Rad8 h7 Ne4 Be5 Rh8 Bh2 Rhg8 h8Q Bb7 Qe5 Q5f3 Rf6 Qh1 Qh5 Rg3 Rf7 Rg4 f6 Nf5 Qg6 Rg5 Qh7 Kf2 Qh5 Qe1 Nd2 Ke3 Qg4 Qeg3 Ndb3+ Kf2 Qh5 Nd2 Qg6 Be4 Qh7 Nh6+ Qhf5+ Qf4 Nbc4 Kf3 Rc2 Kf2 Nb2 Ke3 Rc6 Qfg3 Qg4 Nf5 Ra6 Ng7+ Ke7 Qgf3 Qgf5 Qd1 Ne8 Qc2 Nd6 Nh5 Ke6 Qc4+ Ke7 Qc7+ Ke6 Ng7+
3b2k1/R1QB1RP1/n1q2Q2/8/BN3B2/1bnNP3/PrrQr1pR/1QK5 w - - 0 1 illegal: No possible last move
BnQ1RQ2/1p6/r2P1P1R/1krq1RP1/1NR1b1Kb/8/n1N1rNQB/8 w - - 0 1 illegal: Other
nN1Bq3/3B3B/3r1R1K/1QnPpNQR/1P4Nb/P4N1Q/1k2q3/2q2r2 w - - 0 1 legal: proof: g4 a5 b4 h5 gxh5 b5 e4 f5 exf5 c5 c4 d5 cxd5 c4 a3 c3 Bxb5+ Nc6 Bf1 Ba6 d3 Bc4 dxc4 a4 Qb3 Nb8 Qxa4+ Nc6 Qd1 Nb8 Ke2 Kf7 Kf3 Kf6 Kf4 g6 h4 c2 h6 e6 c5 Nd7 c6 Ra7 c7 Nb8 c8B Qd7 h7 Ne7 h5 Nbc6 h6 Nd4 Nh3 Rg8 h8N Ra5 h7 Ra6 Qd2 Rd6 Bd3 Bg7 Nf7 Ndc6 h8Q Rd8 Nh6 Qe8 Bd7 Rc8 f3 Qf8 Nf2 Rb8 Rh5 Nc8 Nfg4+ Ke7 Kg5 Na5 f4 Nb7 Qe2 e5 Nd2 Nb6 Nf3 Qe8 f6+ Kd8 f7 Kc7 f8N Na8 f5 Kb6 f6 Nc5 Be3 c1Q f7 Rb7 Nf5 Bf6+ Kh6 Bh4 Rb1 g5+ Qf6 Qc4 Rf1 Qc2 Qh2 Qe2 Qh3 Rc7 Bg1 Rcc6 Bc2 Kb5 Be3 Kc4 Rf2 Na4 Bb6 Kc3 Bd8 Kb2 Bb1 Rc1 Rf1 Rb6 Qc6 Nc5 Bd3 Rb8 Qb5 Rb6+ Nd6 Ra6 Nd4 Qe3 Nfe6 Nb7 f8Q Ra5 Qf4 Ra4 Nc6 Ra6 Nh2 g4 Nb8 g3 Nd4 g2 Bh7 g1Q Qg5 Qe2 Ng4 Nc5 Rf6 Qh1 N6f5 Rd6 Nf3 Qhe1 Bc8 Q1d2 Be6 Rf1 Bd7 Qc1
1N1K3B/rNnnQp2/R2p4/2pn2Qp/P3PN2/P4BR1/Q3N2B/5k1b w - - 0 1 legal: proof: c4 a5 f4 b5 d4 e5 fxe5 g5 h4 b4 hxg5 c6 c5 a4 b3 Qb6 bxa4 Bh6 cxb6 Bf8 b7 Bc5 dxc5 Ra7 Qb3 Ra6 Qd1 Rb6 cxb6 Kd8 Be3 Ke7 Bc1 Ke8 Kf2 Ke7 Ke3 Ke6 Ke4 c5 g4 b3 g6 b2 g7 h6 g5 Ne7 g8Q Nd5 a3 Nc6 b8B Nd4 b7 Nf4 g6 Rh7 g7 Nf3 Bg2 Nd5 Nc3 b1N Qc2 Ne3 Qa2+ Nd5 Bb2 Nh2 Bf3 Nf1 Qf8 Rh8 g8Q Ne3 Qg5 Nc2 Nh3 Nd4 e3 Nb3 Ne2 Nb4 Bc7 Rg8 b8N Nd2+ Kf4 Ne4 Rag1 Kd5 Kf5 Kc4 e6 Kd3 e7 Nd5 e8N Ba6 Nd6 Bb7 Bh8 Nef6 Rg3 Nd4+ Ke5 Rg6 Qe7 Ne6 Rf1 Bc6 Nb7 h5 Kd6 Rg8 Rb1 Rc8 Rb6 Re8 Na6 Ra8 Nb8 Ra7 Ra6 Ng7 Qa1 Ne6 Nhf4+ Kd2 Qb2+ Ke1 Qa2 Kf1 Qf8 Nb6 Ke7 Bd5 Be5 Nc7 Kd8 d6 Qe7 Nbd7 Bb2 Be6 Be5 Nfd5 e4 Bg4 Bd4 Bh3 Bg1 Bg2 Bh2 Bh1
4R2r/1b5N/4N1Bn/R2Q2Q1/2qPP1B1/P1Rn2qK/k4B2/1rbN1nBb w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 a5 g4 b5 gxh5 b4 a3 a4 Qxa4+ Qd7 Qd1 b3 Qxb3 Qa4 Qd1 Qd7 b3 Qd8 Kf2 Kd7 Kg2 g5 h4 c5 e4 f5 e6+ Kd6 e7 c4 e8B Kc5 b4+ Kd4 h6 g4 h7 g3 h5 c3 d6 f4 h6 c2 b5 Ra5 d7 f3+ Kh3 g2 b6 f2 b7 Qc7 Bg6 Rb5 Be2 f1B Bg4 Kc4 d8N Kb3 Ne6 Qc3+ Nf3 Qd4 Nfg5 Nf6 Nc3 Nc6 b8B Rb7 Bh2 Nb4 Bg1 Qc4 d4 Nbd5 Qd2 Be7 Nd1 Ng8 Rb1+ Ka2 Rb3 Rb4 Rc3 Rb1 Qf4 Bb7 Bce3 c1N Bef2 Bf6 Qf5 Ne3 Qd5 Nd3 Rh2 Ne7 Rh1 N7f5 Rh2 Rc8 h8Q Be7 h7 Nh6 Qf6 Rh8 Qg7 Be2 Qge5 Nf1 Qf4 Bf3 Qc1 Ra8 h8R Bf6 Nh7 Bg5 Qf4 Rb8 Qfe5 Bc1 Re8 Ra8 Qg5 Rc8 Be3 Ra8 Bgf2 g1Q Rg2 Rd8 Rg3 Bh1 Rf3 Nh2 Rf5 Qe1 Bg1 Nf1 Bef2 Rb8 Qdd8 Ra8 Ra5 Rc8 Qdd5 Ra8 Re7 Rh8 Re8 Qe3+ Bg3 Qf4 B3f2 Qg3+
1r1kr2B/K1R1r1N1/1N1n2Q1/R1b2B2/1P3qRP/Q1b3nq/5P1Q/5NNn w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 b5 cxd5 b4 a3 Kd7 axb4 Ke8 g4 h5 gxh5 a5 b3 a4 Be2 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Qd7 Bd3 Qc8 Bf1 Qd8 Ke2 c5 Kd3 e5 Kc4 g5 Kb5 g4 d4 e4 f6 e3 f7+ Kd7 a5 c4 a6 a2 h6 c3 a7 c2 h7 e2 d6 e1R d5 g3 Bh3+ Re6 Bb2 c1N Qg4 g2 Qg6 Qe8 Kb6 Kd8 Nd2 Qa4 Nf1 Re5 d7 Nd3 Bf5 Na6 h4 Rc8 a8N Nc1 Ka7 Ne7 Nb6 Rb8 Rh2 Rg8 h8R Qb3 Rh7 Nc7 Rh3 Re4 Bh8 Ne8 Rg3 Ne2 Rg4 Qh3 Rg7 Ng3 Rh7 Bg7 f8Q Nh1 Qff6 Re1 Qc3 Bd4 Qa3 Nd6 Rg7 Re8 Rh7 Kc7 d8N Bc5 Rf7 Ne4 Rh7 Neg3 Ne6+ Kd6 Nf3 g1Q Ng7+ Kc7 d6+ Kd8 d7 Qgh2 Ng1 Re3 Rh5 Re6 Rc1 a1B Rcc4 Bc3 Rhg5 Be3 Rc7 Bc5 Rh5 Nd5 Rhg5 Nf6 Rh5 Nfe4 Rhg5 Ke7 Rh5 Nd6 d8Q+ Kf8 Qdg5 R6e7 Qgc1 Rd7 Qd2 Ke7 Qf4 Kd8 Rhg5 Ne2 Qg3 Rde7 Qg2 Qf4 Qh2 Be3 Bc2 Bed4 Ra5 Neg3 Bf5 Bc5
Q2RN1Bq/R1P1n3/1N2R2q/1k4P1/2brK3/1B1r1n1q/b1n3P1/2QQR1B1 w - - 0 1 legal: proof: d4 c5 dxc5 b5 f4 f5 a4 g5 axb5 g4 e4 g3 exf5 Nc6 hxg3 Ne5 g4 Bg7 g5 Bf6 g6 Bg5 fxg5 Nc6 Ra6 Nb8 Ra5 Qb6 Ra1 Qd8 Kf2 e5 Ke3 a5 b4 d5 c4 Kd7 c6+ Kd6 g7 h5 b6 a4 b7 e4 f6 a3 f7 h4 f8Q+ Qe7 b5 Kc5 c7 a2 b6 h3 Nf3 h2 Na3 Be6 c8Q+ Nc6 b8R Rh3 b7 Qd6 Nb5 Ne7 g8B Ra4 Nc7 Ne5 Ne8+ Kb6 Kf4 e3 Nd2 d4 Ke4 e2 c5+ Kb5 c6 d3+ Nc4 e1N Be3 d2 Bg1 Rd3 c7 Nc2 Qf4 Qb6 Ra8 Qa6 Ra7 Nf3 b8R+ Qb6 Rc1 a1Q Qb7 Qf6 Rd8 Qh8 Qa8 Bf7 Ra1 Qbh6 Ra2 Rb4 R2a6 Qh3 Re6 Ra4 Qa1 d1B Qfc1 Be2 Qd4 Q8h6 Nb6 Qh8 Rh6 Ba2 Re6 Raa3 Qda1 Rd6 Qd4 Bec4 Qdd1 Rad3 Be2 Nfd4 Bh5 Nf3 Bhf7 Q8h6 Bc5 Rd7 Re1 h1Q Bg1 Qh8 Bh7 Qh6 Bhg8 Q1h3 Rg6 Bcb3 Bd5 Rd6 Re6 Bc4 Bc6+ Kb4 Ba4 Rd7 Bb3 Kb5 Be3 R7d5 Bg1 R5d4+
2qQK2r/R2B3b/2R1Qbbk/1r1r3P/1P1n2r1/3PN2Q/n1R2B2/1B3QN1 w - - 0 1 illegal: No possible last move
b2k2KB/Bb2r3/1Rn1QrPr/2RN4/2n5/1PqP2N1/4N1B1/1BQ1n1nQ w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 h5 Kg3 a5 Kf4 c5 Ke5 h4 d6 h3 b3 h2 d7+ Ke7 b6 a4 b7 a3 Bb2 c4 Nc3 a2 Ne4 c3 Ng3 c2 Rc1 a1N N1e2 Qe8 d8N Rh6 f6+ Kd7 f7 Ke7 f8Q+ Kd7 Qf3 Ra6 Bg2 Nf6 g8Q Ne4 g7 Nd6 Nc6 Kc7 Nb4 Qc6 Bd4 Qc3 Nd5+ Kd7 Qgf7+ Kd8 g8B Rf6 Rf1 h1B Bh7 Rh6 Bg6 Nc4+ Kf6 e5+ Kg7 e4 Kg8 e3 Qe6 Nc6 b8B Bb7 Bba7 Ba8 Bh8 Rb6 Rb1 c1N Bf5 Bb7 g6 Nc2 Rb2 Ne1 Bb1 Ba8 d3 Bb7 Rc2 Ba8 Nef4 Ne2 Qc1 Ng1 Nfe2 Bb7 Nd4 e2 Qfe4 Ra6 Rf6 Nef3 Qh4 e1R Nde2 Rb6 Ra2 Ba8 Ra5 Bb7 Rc5 Ra6 Nd4 Re4 Nde2 Ne1 Qf7 Re7 Qh2 Nb4 Rb6 Nc6 Qe6 Ra2 Nef4 Rf2 Nfe2 Rf6 Ndf4 Nb8 Bc6 Ba8 Qh5 Bf3 Qh1 Bg4 Bg2 Bgf3 Ba2 Bfe4 Bb1 Beb7 Nd5 Nc6
8/BQ2qQbB/rB2n3/2P5/k1P2RNn/2QP1Bbn/1KNnn2b/1R5R w - - 0 1 legal: proof: g4 b5 a4 a5 axb5 d5 d3 e5 Kd2 h5 gxh5 c5 Ke1 e4 f3 Bf5 Kf2 e3+ Ke1 Be4 fxe4 c4 dxc4 d4 c5 d3 Ra2 Ra7 Ra1 Rd7 Bh3 d2+ Kf1 Rd3 exd3 Nh6 Ke2 Ng8 Bg2 Qg5 Bf1 Qd8 b4 Kd7 h4 f5 h6 g5 b6 Kc6 b7 Kb5 h7 f4 h5 g4 h6 a4 e5 g3 e6 g2 e7 a3 e8B+ Qd7 Nh3 g1B Bg6 a2 Bg2 Qf5 Nf2 Bd6 Ng4 Qf6 Qf1 d1N Bf3 Ne7 Na3+ Ka4 Rb1 Nbc6 b8B a1B Ba7 Ra8 h8Q Nf2 h7 Nh3 Kd1 Nd4 c4 Bh2 b5 Nd5 b6 Bc7 b7 Ne6 Kc2 e2 b8Q Qe7 Bd2 Bg7 Qb7 Nc3 Kb2 e1N Nc2 Ne2+ Bc3 Ng2 Qf2 Bh6 Ba5 Nh4 Qc3 Bg7 h8R Bb8 Bh7 Bg3 Bg2 f3 Rf8 Bh2 Qf1 f2 B5b6 Bbc7 Bf3 Bcg3 Qd1 f1N Rf4 Nd2 Qg1 Rh8 Qgd4 Rd8 Qf6 Rd6 Qf7 Rc6 Bd8 Ra6 Bc7 Qg5 Bcb6 Qe7
3bn1r1/3PQ2Q/2B2R1n/2b2b1B/nN1R2Q1/R1Bb1PKP/R2q1b1N/1k6 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 Nh6 c4 Ng8 cxd5 Bb7 Bc4 Ba6 Bf1 Bc8 hxg5 h5 Be2 a5 Rh2 h4 Bd3 h3 Rh1 h2 Bf1 Rh3 gxh3 Ra6 Nf3 Rh6 Ng1 Rh8 b4 Kd7 d4 Kd6 g6 e5 g7 c5 f6 c4 f7 a4 b6 c3 b5 c2 b7 a3 b6 e4 Be2 e3 Bd2 c1B Bh5 a2 Qg4 e2 Nc3 Be7 f8R Na6 b8R Ba3 b7 Rh6 Ra8 Bf5 b8Q+ Nc7 Qa7 Nb5 Nf3 Nc7 Rf6+ Kd7 d6 Kc6 Nd5 Kb5 d7 Kc4 Nb4 Kb3 d5 Kb2 d6 Ne8 Qb7 Qa5 d8Q Rh8 d7 Bd3 Qbe4 Nh6 Qh7 Rg8 Raa6 Bc5 Qe7 Bf5 Rf1 h1B Nh2 Bhe4 f3 Bd3 Rd1 a1N Rf2 Bb6 Ra8 Bd8 Bc3+ Kb3 Rg2 Qd5 Kf2 e1B+ Kg1 Bg3 Ra2 Bf2+ Kg2 Qd6 Nc2 Bac5 Nb4 Bc4 Rd4 Bcd3 R8a7 Qf4 R7a4 Qd2 Raa6 Nc2 Ra8 Na3 Ra4 Nc4 Raa6 Nb2 R6a4 Rf8 g8B+ Be6 Ra8 Na4 Bgf7 Rh8 Bfg6 Rf8 Be4 Bf5 Bc6 Rg8 Ra6 Bg1+ Kg3 Be3 Nd5 Bg1 Ra3+ Kc2 Nb4+ Kb1 Ra2 Nb2 R6a3 Na4 Bb5 Be3 Bc6 Bf2+
Kq4Q1/R3B2N/2Q4R/4k2N/1b2BNr1/qP2Qr1r/r1bP1P2/1nr3QB w - - 0 1 legal: proof: h4 f5 g4 d5 e4 g5 exf5 b5 a4 d4 axb5 d3 f6 Bb7 cxd3 Nc6 d4 Qc8 d5 Nd8 hxg5 Kd7 g6 Ke8 g5 Ne6 Ne2 Qd8 Ng1 Ng7 fxg7 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 e5 b6 a5 Kb5 h5 b3 c5 b7 a4 b8Q+ Qc7 Nf3 a3 Bg2 h4 Qa7 c4 Qg1 h3 Nc3 e4 Qe3 h2 Ne2 c3 Nf4 a2 Ba3+ Kd7 d6 Nf6 g8N c2 g7 c1R g6 Rh4 Ng5 Nd5 Nh7 Rg4 Bb4 Bb7 Bc5 Qb8 Ngf6+ Kd8 g8Q Nc3+ Kb6 Nb1 N6h5 Kd7 g7 Ra7 Qe2 e3 Be4 Rc3 Qd3 e2 Qe3 e1R Qc4 Rf1 g8B Rfc1 Bgd5 Ba6+ Bb7 Ra8 Qd5 Bd3 Bb4 Bc2 Qc6+ Kd8 d7 Ra3 Qec5 Rf3 Qe3 Bd6 Bc5 Ke7 d8Q+ Kf7 Qh8 Ra8 Ba3 Bb4 Qg8+ Ke7 Qce8+ Kd6 Qd7+ Ke5 Qc6 Bc3 Bf8 Bb4 Be7 Nc3 Rb1 a1Q Rb2 Qd6 Ra2 Nb1 Ra6 Qa3 Ra7 Rc8 Ba8 Rf8 Kb7 Rh3 Ng2 Rff3 Ngf4 Rfg3 Qc7 Re1 Qg2 Nc3 N5f6 Rh6 Kb8 Ra1 Beb7+ Kf5 Bf3 Ra2 Bae4+ Ke5 Ka8 Nb1 Qc6 Rh5 Rf1 h1R Rg1 R1h4 Rh1 Qc7 Qh2 Rg1 Qg3 Rc1 Qg1 Rg3 Rh3 Rhg4 Bh1 Rf3 Rh4 Rf5 Rh6 Rh5 Qb7 Qd6 Qc6 Rhh3 N6h5 Qb8+
rq1RQ1R1/3PQ3/4b1bN/k7/B2nRb2/2Nq1PQP/1Rrb2K1/5bBN w - - 0 1 legal: proof: c4 a5 e4 h5 b4 f5 exf5 d5 cxd5 g5 bxa5 g4 h3 h4 Ke2 Na6 Ke1 Nb4 hxg4 h3 g5 Nd3+ Ke2 Nf4+ Ke1 h2 Qf3 Bg7 Qd1 Nh3 gxh3 Bf8 a4 Kd7 d4 b5 g6 c5 f6 Kc7 f3 e5 Kf2 c4 a6 Kb6 g7 b4 a5+ Kb5 d6 e4 a7 b3 d5 b2 f7 e3+ Kg2 e2 a6 e1Q d7 Bc5 f8Q Rh7 d6 Qee8 Ne2 c3 Ra2 c2 Qe1 Bb6 Qg3 Rh4 Qe7 Ba5 Be3 c1B Bg1 Nh6 g8N Nf5 Nh6 Nd4 Nbc3+ Kb6 Ra4 b1B Ra2 Bb4 Rd2 Ka5 Rb2 Qb6 d8Q Qg6 Qde8 Be6 d7 Qh7 Q7f7 Bf4 Qfe7 Rc8 a8R Qb8 a7 Qd3 Nd5 Rc2 Nc3 Qe5 Rd8 Qb8 Qh7 Rg4 Qhe7 Rg8 a8R+ Kb6 Nb5 Bbd2 Ra4 Rf8 Rc4 Ka5 Nbc3 Nb5 Re4 Nd4 Qg4 Rh8 Ng3 Rf8 Be2 Rh8 Bd1 Rg8 Bf2 Rf8 Rg1 h1B+ Kh2 Bg2 Qgh4 Rc1 Ba4 Bf1 Rg2 Rc2 Bg1 Be2 Qg4 Bfe3 Qf4 Rh8 Nh1 Rg8 Qg3 Bf4 Be3 Rh8 Bg1 Qdb5 Qg8 Ka6 Re8 Q8b7 Re5 Rc1 Rb8 Bbf5 Re4 Ka5 Qg6 Rd8 Qge8 Qd3 Rc8 Rc2 Rb8 Bg5 Qf2 Bgf4+ Rg3 Qb6 Kg2 Qd6 Rg8 Bg6 Qg3 Qe5 R8b3 Ra8 Rb8 Qd6 Rc8 Qb8 Rd8 Bf1+
1B5q/Pq1k3P/1B3r2/4qb1R/Kqb2rBN/1Q2n1PR/1R1Nq3/Q2BQ3 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 h5 b4 h4 bxa5 h3 g3 Be6 Bd3 Bd7 Bf1 Bc8 Ba6 g5 Qg4 Bg7 Qe2 g4 Qd1 Bf6 Be2 Nc6 Bf1 Bh4 Bb2 Nd4 Bc1 Ne2 gxh4 g3 Bb2 g2 Bc1 Ng3 hxg3 Ra7 Qe2 Ra6 Qd1 Ra8 d4 c5 Kd2 e5 Kc3 b5 Kb3 e4 a4 h2 f4 b4 f6 e3 f5 e2 f7+ Ke7 f8R e1Q a6 Bb7 f6+ Kd7 f7 Rb8 a7 Ne7 a8B Rg8 d6 Qe6+ d5 Qc7 h5 Nc8 h6 Nb6 a5 Ba6 h7 Qc8 Qe1 Rh8 Be2 Bb7 a6 Nc4 a7 Qe3+ Ka4 b3 Bg4+ Qe6 Ra2 b2 Bf4 Ba6 Nd2 b1B Ngf3 g1Q Nh4 Rb6 Rb2 Qd4 Rg8 Qe4 f8Q Qe2 Qf6 Bf5 Rg5 Ne3 Rh5 c4 Qc3 Qf6 Qb3 c3 Bb7 c2 Bc6+ Kd8 d7 c1Q Bb8 Rf8 Ba8 Ke7 d8B+ Kd7 d6 Bc4 Baf3 Qb1 Bdc7 Rc6 Bb6 Qe4 Qa1 Qfe5 Qe1 Rf7 Qa1 Qch8 Qe1 Ke6 d7 Ke7 Qa1 Rcf6 d8Q+ Ke6 Qf8 Kd7 Qe1 Q4d4 Qfa3 Qc3 Qaa1 Qcd4 Rg1 h1Q Rg2 Qde4 Rh2 Qb7 Rh3 Qhf1 Be4 Qff4 Bc2 Qfd4 Bd1 Qc3 Ka3 Qb4+ Ka2 Rg6 Qg1 Bfe6 Qf2 Rf4 Qe1 Qbc3 Ka3 Bf5 Ka4 Rc6 Nf1 Rf6 Nd2 Qb4+
N6K/R1QN1R2/PBB5/q3N2P/2R5/Qn2B2r/n2n1qP1/krR1b1nr w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 h3 g5 Qc2 h5 Qd1 g4 hxg4 Qd6 Bc4 Qd7 Bf1 Qd8 Ba6 h4 Bf1 Be6 Qf3 Bf7 Qd1 Bh5 gxh5 Rh7 Ne2 Rh6 Ng1 Rh8 Ke2 Kd7 Kd3 Kd6 Kd4 b5 f4 c6 a4 b4 f6 h3 f5 e6 a6 h2 f7 b3 f6 b2 a7 Ne7 a5 Qc8 Qc2 Na6 Na3 b1N Bb5 Qc7 Nf3 Nb4 Ne5 Na2 Nd7 e5+ Ke4 c5 d4 c4 Bc6 c3 Be3 Rd8 a8N Ng6 Kf5 e4 Rc1 h1R a6 Bg7 f8R Ne5 f7 Nf3 Kg6 Qa5 Qa4 Rg8 Kh7 c2 Re8 Rc8 f8R Rb8 Re7 Nbd2 Rff7 Ng1 Rab1 Bf8 Rb4 Rg3 Rc4 Rgh3 Kh8 Rb6 Nb8 Rb1 Ra7 Be7 Nd7 Bh4 Rf2 Ke7 d6+ Ke6 Rf7 Be1 Ndb6 Ne2 d5+ Ke5 d7 Ng1 d8B Qc5 d6 Qa5 Beg5 e3 d7 e2 Bh6 Rb2 Be3 Rb1 Rd1 c1N Qb3 Nd3 Rdc1 Nc5 Qb4 Ncb3 Qf8 Bh4 Qb4 e1Q Bc7+ Ke6 d8Q Qf2 Nd7 Bg3 Bcb6 Bh4 Ba4 Kd5 Qc7 Bg3 Nb5 Bh4 Nd4 Ke4 Nf3+ Kd3 Bc6 Bg3 Rcf4 Bh4 Qa3 Bg3 Re1 Kc2 Nfe5 Bh4 Qb4 Kb2 Rc4 Ka1 Rec1 Qf1 Qa4 Be1 Qa3 Qf2
3b2K1/1kb1PnB1/1r2rqP1/Q4RQ1/1q3B1Q/1B1q4/NqPN1R2/2BN3b w - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 Nc6 gxf5 g4 a4 Nd4 axb5 Ne6 Bg5 Bg7 Bc1 Ng5 hxg5 Bf8 Kd2 h5 Kc3 d5 Kd4 Kd7 e4 Kc7 b4 a5 c6 g3 g6 g2 e6 a4 Ke5 d4 f6 a3 b6+ Kb8 f7 h4 b5 d3 b7 a2 e7 d2 e8Q h3 c7+ Ka7 b8N h2 b6+ Kb7 Qa4 Rh7 Qa5 Rh6 Na6 Qh4 Ne2 g1B Nec3 Rb8 Qg4 d1Q Nb4 Qd2 Bc4 Nf6 Bb3 Qg2 Nd2 Qf1 Qg5 Qf3 Nd1 Be7 f8B Qd3 Bg7 Nd7+ Ke6 Bd8 Kf7 Rh8 e5 Re8 e6 Bd4 Rb1 a1Q Rf1 h1Q Rf2 Qhf1 Na2 Be5 Rf5 Re7+ Kg8 Qb2 Rf2 Qb4 Rf5 Rf7 e7 Rf6 Qh4 Re6 Rf2 Kc6 b7 Bf4 Qag5 Ne5 Ra1 Bd7 c8Q+ Kb6 Qc3 Bc6 Rb1 Nf7 Qce5 Bh1 Qa5+ Kc6 Ra1 Bfc7 Rb1 Ra8 b8B Ra6 Rf5 Rb6 Rf2 Bg3 Bf4 Kb7 Bc7 Rbc6 Re2 Bg2 Ne3 Q2c3 Bb2 Qff6 Rf1 Be4 Nd1 Be5 Bc1 Bh1 Rf5 Qb2 Ref2 Rb6 Bd6 Bd4 Bg3 Be5 Bf4 Bec7
1nK4b/1PbQR1rn/1n5N/2N2N1R/1nbP2B1/5nQ1/1kr1PB2/4B1QB w - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Qf6 f4 Qg5 fxe5 Kf7 hxg5 Ke8 Kf2 Kf7 Kg3 a5 Kf4 h5 d4 c5 b4 a4 f6 g3 g6+ Ke8 b6 Kd7 Kf5 h4 e6+ Kd6 g7 c4 b5 g2 f7 a3 b7 h3 b6 a2 Be3 c3 Bf2 c2 Nd2 c1N Ngf3 g1B Bg2 h2 Nh4 Nd3 Nb3 Nb4 Nc5 Nf6 g8N Nh7 Nh6 Rg8 Qc1 Be7 f8B Rg7 Bf3 Ra3 Bg4 Rc3 Rb1 a1N Rb3 Rc2 Re3 Nd7 Re5 Na6 b8Q+ Nc7 b7 Nb3 Qe3 Nd2 Qg3 Nf3 Qa7 Rc4 Qa1 Na6 Qc1 Nab8 Qe3 Kc7 d6+ Kc6 Qg5 Bd8 e7 Kb5 Ke6 Kb4 e8B Ka3 N4f5 Nb6+ d7 Kb2 Kd6 Be7+ Kc7 Rc2 d8Q Bf6+ Re7 Be6 Bc6 Bc4 Qd7 Be5+ Kd8 Bf6 Be1 Be3 Bf2 Bf4 Qg1 Nd5 Qg3 Bc7+ Kc8 Bfe5 Ra1 h1N Ra5 Nb4 Qg1 Ng3 Qh4 Nf1 Qhg3 Ne3 Bd5 Nh4 Bh1 Ned5 Na6 Ne3 Nd6 Rg5 Rf7 Bh8 Rg7 Rg6 Rh5 Na2 Ndf5 Nd5 Bb4 Nf3 Bbe1 Nab4 Re7 Rg7 Nc5 Nb6+
nrR3rQ/Q3P2r/N1BQn2k/b1Q1NPb1/3P1BbB/8/3NRK2/n2n4 w - - 0 1 legal: proof: g4 h5 gxh5 b5 a4 d5 axb5 d4 c3 Nd7 cxd4 Nb8 d3 f5 e3 e5 e4 Qh4 exf5 e4 Qb3 e3 Qd1 Qe4 dxe4 Bd6 Nc3 Ba3 Nb1 Bf8 h4 Kf7 f4 a5 b4 g5 f6 c5 h6 Kg6 e5 e2 f7 g4 f5+ Kh5 e6 g3 h7 c4 b6 g2 b7 c3 b5 a4 b6 c2 Ra2 a3 Bf4 c1B Kf2 Bg7 f8Q Nd7 b8Q Bb7 Qfd6 Nc5 e7 Bf3 b7 e1N Re2 a2 Qc2 a1N Nd2 Ne6 Qa7 Rb8 Qcc5 Bg4 Ngf3 g1R Bg2 Bf6 Ne5 Bg5 Bc6 Kh6 h5 Nf6 Rh3 Ba3 Rc3 Nd5 Rc1 Rhg8 h8B Ng2 Bf6 Nge3 Rc4 Rh1 Rc2 Rbf8 b8N Bb4 Na6 Nb6 Rc4 Ba5 Rc3 Kh7 h6 Na8 Rc1 Rf7 Rc2 Rb1 Rc3 Rbb8 Rc2 Rfg7 Rc3 Kh8 h7 Nd1+ Kf1 Nb6 Qb4 Bh3+ Bg2 Na8 Rc8 Bh6 Bh4 Bg4 Qbc5 Bg5 Bc6 Rf7 Kg2 Kg7 Kf1 Kh6 h8Q+ Rh7 Kg2 Ne3+ Kf2 Nd1+
3K2N1/1k3r1n/1n4BN/P1qrrn1Q/B5r1/PR2r3/1Q3PNq/B2RQ2Q w - - 0 1 legal: proof: c4 f5 e4 d5 exf5 g5 cxd5 a5 b4 g4 bxa5 Bg7 Qe2 Be5 Qd1 Bf4 g3 Bd7 gxf4 g3 h3 Bb5 Ba3 Be2 Bc1 Bg4 hxg4 Qd6 Ba3 Qd7 Bc1 Qd8 Ke2 Kd7 Kf3 Kc8 Ke4 h5 Ke5 c5 Ke6 b5 d4 h4 g5 c4 f6 c3 a3 c2 f5 g2 f7 b4 f8Q h3 d6 h2 d5 b3 d7+ Kb7 g6 b2 g7 Rh7 d6 Qc8 f6 Rh4 f7 Nh6 g8B Qd8 Nc3 b1Q Qh5 Nf5 Qfh6 Rb4 f8Q Nh4 Nd5 Qb2 Bb5 Qb6 d8Q Nf5 Rb1 Qh8 Qfg7 Rg4 Nf3 g1N Bh7 Ra7 Rb3 Qc5 d7 Nh3 Rd1 h1R Bb2 c1R Nh4 Rc3 Nf6 Re3+ Kf7 e5 Bg6 e4 Qe7 Rhe1 Ng8 Ng5+ Ke8 Nh7 Ba1 Rd3 Qd4 e3 Ng2 e2 Qb2 Rd5 Kd8 Qe5 Qh1 Qh2 Qhh4 Ra6 Qee5 Rf6 Qh5 Rf7 Qe8 Rg1 Qe3 e1R Qec1 Ree5 Ba4+ Qb4 Qe3 Re1 Qed2 R1e3 Qde1 Ka6 Kc8 Ka7 d8N Nd7 Kc7 Rf6 Nf7 Qc5+ Kd8 Nb6+ Bd7 Kb7 Nfh6 Nd6 Bde8 Rf7 Ba4 Nf5+
5Nr1/4PNRN/q5Rq/3K1QQ1/2Bq1Bb1/2b1PR2/r1qB1P2/1qrkN3 w - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 b5 b4 f5 gxf5 g4 c4 Ke7 cxb5 Nh6 h4 Bb7 a4 Ba6 b6 Bc4 b5 Nf7 a5 Ng5 hxg5 Bd5 Rh2 Na6 Rh5 Nc5 Rh1 Bb7 a6 Bc8 Nd2 Nb7 axb7 Kf7 Nb1 Ke8 Kd2 Kf7 Kd3 d5 Kd4 h5 b8B a5 e3 g3 f6 Ke6 f7 Kf5 g6 g2 b7 h4 b6 a4 e6 h3 g7 h2 g8Q a3 e7 a2 Nh3 g1Q Bc4 Bg7+ Kc5 Ke4 f8N d4 Bd2 c6 Qc2+ Kf3 Bf4 d3 b8N Ke2 b7 Bg4 Nh7 Bc3 Na3 Qb1 Rg1 h1Q N3g5 Qh6 Nf7 Ra6 Qg5 Rg8 Nd7 Qa8 b8R Ra5+ Rb5 Qa6 Qf6 Ra4 Kd6 c5+ Kd5 Ra5 Ndf8 Ra4 Bb3 c4 Qg5 Ra5 Rg3 Ra4 Rf3 Ra5 Be1+ d2 Qcf5 d1Q+ Bd2 Qdc2 Rc5 Ra4 Rc6 Kd1 Rd6 Qc1 Rb1 a1Q Rg6 Qb2 Ba2 Qa1 Rbb6 Qc1b1 Rg7 Qab2 Rbg6 Qbb6 Nb5 Ra3 Bb3 Ra2 Nd4 Qba7 Ne2 Q7b6 Nc1 Qf6 Nd3 Qfb6 Nd6 Qd4+ Ke6 Ba5 Rf6 c3 Bc4 Qa4 Rfg6 c2 Ne1 c1R Nc2 Q6b5 Nf7 Bc3 Ne1 Qb7 Nh8 Qac2 Nf7 Qda7 Kd6 Qba6+ Kd5 Qd4+
2BbRRb1/3qBq2/bP2P3/1rrQPNQK/3R3N/6q1/4R2B/Nkr2r2 w - - 0 1 legal: proof: h4 d5 f4 g5 a4 f5 c4 b5 cxd5 e5 axb5 Na6 Nc3 Nh6 Nb1 Nc5 fxe5 f4 g4 Nf5 gxf5 g4 Ra4 Ne4 Ra1 Ng5 hxg5 Bd6 Nf3 Bc5 Ng1 Bf8 Kf2 Ke7 b4 c5 e4 h5 d4 a5 f6+ Kf7 d6 Ke6 g6 g3+ Kf3 h4 Kg4 a4 f7 a3 g7 a2 g8N g2 d5+ Kd7 b6 h3 b7 c4 b8R f3 b5 c3 b6 h2 Bf4 f2 Nf3 c2 Na3 c1Q Nc2 Ra6 Ne7 Ra5 Nf5 Ba6 N3h4 Be7 f8R g1Q+ Bg3 Rc5 Bh3 Rg8+ Kh5 f1R Qd4 Qb2 Re1 a1R Re2 Rac1 Na1 Qb3 Rc8 Qc7 Rce8 Bd8 Bf4 Qgg3 e6+ Kc8 d7+ Kb7 Rg1 h1B Qf6 Rb5 Qg5 Rcc5 Be5 Rfc1 Rd1 Qa2 Rf7 Rf8 Rd4 Qd2 d6 Kc6 Bf1 Qb7 Bf4 Bg2 e5 Be4 Be3 Bd3 Bg1 Bb1 Bh2 Qd1 Ne3 Bh7 Nef5 Bg8 Rf6 Rb2 Bg2+ Kb5 Bh1 Qa7 Bb7 Ka5 Bc8 Rbb5 Rd3 Kb4 Rd4+ Kc3 Rf7 Bc7 d8Q Qa4 Qd7 Bd8 Qc6 Qd1 d7 Qd2 Qa8 Kb2 Qd5 Kb1 Rf6 Be7 d8B Qb7 Bc7 Bd8 Bd6 Qdf4 Be7 Qd7 Rf7 Qff2 Rg7 Rf6 Rf7 Qf1 Rff8 Rf7 Nd6 Qf6 Ndf5 Qg7 Nh6 Rff1 N6f5 Qf7+
8/Q1K1R2r/N1QQRP2/B1BB2kr/3qn3/r1P1Nn2/bP1p4/1Nn2b1B w - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 g5 a4 f5 axb5 e6 e4 f4 h4 f3 hxg5 Nh6 g6 Ke7 g5 Ke8 g7 Bd6 g6 Bg3 fxg3 Ng8 g4 f2+ Kd2 Qe7 g5 Qf8 Bh3 f1N+ Ke1 Ng3 Bf1 Nf5 exf5 Qf6 Qe2 Qe7 Qd1 Qd8 Kd2 Ke7 Kc3 a5 Kc4 h5 c6 d5+ Kc5 e5 b6 e4 c3 h4 c7 a4 f6+ Ke6 b7 Kf5 Kb6 h3 Nf3 d4 Nh4+ Ke6 Be3 d3 Ng2 Kf5 Bc5 Na6 b8B Ne7 g8Q e3 g7 a3 g6 e2 Qa2 e1N g8B h2 g7 Nb4 Ne3+ Kg5 Bd5 Ba6 g8N Nf3 Bg2 Rh5 Re1 Nf5 Bh1 Ng3 Ne7 Ne4 Nc6 Ra7 Qd2 Qd6 c8Q Rah7 Bc7 Qe5 Qb7 Qd4 Nb8 Bb5 Qc4 Na2 Qa7 Nc1 Na6 a2 Qa4 Bc4 Kc6 Bb3 Ba5 Bc4 Kb6 Bb3 Qc6 Bc4 Qe2 d2 Qf2 Bf1 Qg3+ Kh6 Qgd6 Kg6 Na3 Kg5 Rb1 a1R Re2 Nd3 Rbe1 Nc1 Nb1 Ra3 Nc2 Nf2 Re7 Ne4 Ne3 Kh6 Kc7 Kg5 Bg2 h1B Re2 Nh4 Bf3 Bhg2 Re1 Bc4 Re2 Bf1 Bh1 Ba2 Ng2 Nf2 Re6 Ne4 Ne3 Nf3
B1R5/R2r2PB/2bqbBN1/NnRP2bK/Qr2k2P/5N2/Q6p/1R1rn3 w - - 0 1 legal: proof: c4 b5 h4 g5 f4 h5 a4 d5 cxd5 e5 fxe5 Qf6 axb5 Qf3 hxg5 h4 g3 h3 Na3 Qe4 Nb1 Qh4 gxh4 Bd7 Qc2 Be6 Qd1 Bc8 Kf2 Kd7 Kf3 a5 Kg4 c5 b4 c4 d4 c3 e4 c2 b6 f6 b5 a4 g6 a3 e6+ Kd6 g7 a2 e5+ Ke7 d6+ Kd8 d7 Ke7 d8R h2 b7 Rh6 b6 Ra5 d5 Nd7 b8N Ra8 b7 Ra7 Nh3 Nc5 Qe2 Nd3 Bb2 c1R Nf4 Ne1 Nd2 Rd1 Nf3 f5+ Kg5 Rf6 Kh5 Nh6 Bc3 Bd7 Rc8 Nf7 Rc5 Nd6 Qb2 Rf7 Bd3 Ra4 Bb1 Nb5 Ng6+ Kd8 Qf2 f4 Nc6+ Kc7 b8R Rb4 e7 Be6 e8Q Rd7 Rc8+ Kb6 Qb2 Be7 Na5 Bf6 Bd3 Bg5 Rb1 a1Q Qa2 Qb2 Rg1 Qa3 Ba1 Bh3 e6 Bf5 e7 Be6 Nd2 f3 Bf6 f2 Nf3 f1B Rg4 Rb2 Ra4 Rb4 Be4 Nc7 Bc2 Bb5 Bf5 Bc6 Bc2 Rd8 Qd7 Nb5 e8B Bh3 Qg4 Rd7 Qgc4 Be6 Qcb3 Qb2 Ra3 Qe5 Qa4 Qd6 Bf5 Rc7 Be4 Ba8 Bc6 Rd7 Bf5 Qg3 Rcc3 Ra7 Nf4 Rc7 Q4b3 Bh6 Nc4+ Kc5 Bh7 Bb7 Ra7 Bg5 Qba4 Rd7 Ng6 Qd6 Na5+ Rc4 Nfe5 Kd4 Nf3+ Ke4 Rcc1 Rb4 Rc5 Ba6 Ba8 Bb7 Q2b3 Bc6 Qb2 Kd3 Qba2 Ke4
1nQBB2r/R3Q3/1B3b2/P1QRb3/NqP2rR1/P3Bkpb/8/1Kn3qN w - - 0 1 legal: proof: e4 c5 b4 a5 bxa5 c4 d3 Na6 dxc4 Nb8 g4 h5 gxh5 b5 c3 f5 exf5 b4 cxb4 Ra7 Qg4 Ra6 Qd1 Ra8 Kd2 Kf7 Kc2 Kf6 f4 d5 h4 e5 h6 g5 h7 d4 h5 g4 h6 e4 Be3 g3 Qh5 Bc5 Nc3 d3+ Kb1 d2 Bd3 Qe8 Na4 Qf8 Rh4 Ra7 Rg4 Rc7 Nh3 Ne7 Nf2 Qg8 Nh1 Nd5 b5 Bb7 b6 Qf7 a3 Re8 h8R Qd7 h7 Bc8 b7 Nc6 b8B Bd6 Bba7 Be5 Bab6 Qd6 Rf8+ Rf7 h8B+ Ke7 f6+ Ke6 Rfg8 Ndb4 R8g7 Na2 Be2 Rff8 f7 Nc1 f5+ Kf6 Ra2 d1Q Rd2 Nb8 Rd5 Qg1 Bd1 Qb4+ Bb3 Ke7 f6+ Ke6 Qh4 Kf5 Rh7 Rg8 f8Q Re6 f7 Rf6 Bg7 Rh8 Qc5 Be6 f8Q Rf7 Bd4 e3 Qhe7 e2 Qfc8 e1B Be3 Bc3 Bf6 Bb2 Rg8 Ke4 Rg4+ Kf3 Bc2 Rff8 Bg6 Bd7 Be8 Rf7 Qed6 Be6 Bfd8 Rf4 Ra7 Bd7 Qe7 Bf6 Rgg5 Bh3 Rg4 Bbe5+
RQB1n2B/R4n1b/2QN1R1P/K2Pbq1k/q2BQ3/3PN2b/2r3pR/1r6 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 h4 a4 Qd7 axb5 Qd6 h3 a5 Qc2 g5 Qd1 Rh5 Rh2 Qg3 gxh5 g4 Rh1 Qf3 Qb3 g3 Qd1 Qg4 hxg4 Ra6 Qe2 Rh6 Qd1 Rh8 f4 Kf7 b4 c5 g5 e5 b6 h3 b5 e4 g6+ Kg7 h6+ Kf6 g7 e3 b7 h2 b6 c4 d3 a4 Na3 e2 Kd2 e1R Kc3 Nd7 b8B Re2 b7 Re4 Be5+ Kf7 b8Q Be7 f6 Kg6 f7 Rd4 f8R Ndf6 Qe1 Ne8 f5+ Kh5 f6 Bd6 f7 Ngf6 g8R Nd7 Nb5 a3 Bb2 a2 Ne2 Rh4 Bd4 Ne5 Qb7 Bh3 Qc6 Bc7 Kb4 c3 Rg6 c2 Rf6 c1Q Nec3 Qf4 Qe4 Qf5 Nd1 Rf4 Nd6 Rf2 Bg2 Rc2 Ne3 Rh7 Rg8 Bb8 f8Q Rb7+ Ka5 Nf7 Bbc3 Rb1 Rg7 Ne5 Ra7 Nf7 Nb7 Be5 Nd6 Ng7 Qb8 Ne8 Re1 h1B Re2 Nc7 Bf1 Ne8 Rh2 Bf3 Be2 g2 Bd1 Rcb2 Ba4 Rc2 Bb5 Bg4 Ba6 Bf3 Qf4 Be4 Bc8 Qg4 Qf3 Bh7 Qe4 Qf5 Ra8 Rh1 Rb1 Rhc1 Rb7 Rb1 Rba7 a1Q+ Qa4 Qa3 Rg6 Bf4 Bh8 Bg8 Bcd4 Bh7 Rf6 Qb3 Qc4 Be5 Qc6 Qa4+
q2qQB1n/1R3QK1/P1b4b/r3P3/q3PQp1/1RBN2R1/4B1nN/2r3kB w - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 c5 g4 d5 cxd5 h5 gxh5 a4 d4 a3 dxc5 Qd7 bxa3 Rh6 a4 Rh8 a5 Qd8 Kd2 Ke7 Kc3 g5 Kd4 f5 a4 b5 d6+ Ke6 d7 f4 c6 Kf5 c7 Kg4 a6 b4 a5 f3 h6 b3 a7 f2 a6 b2 h7 Ba3 Qa4 Bf8 Nf3 Bd6 Na3 b1Q Nc4 Bb4 Ba3 Qc1 Rg1+ Kf4 Rg3 g4 Rb1 Qe8 d8R Qf8 Rb3 Qa1+ Nb2 Bb7 c8Q Bd2 Qe6 Bc6 Qf7+ Nf6 Rd7 Qd8 Bf8 Rg8 h8Q Rg5 Qac4 Qa4 Qhg8 Rf5 Qh8 Nd5 Rdb7 Nd7 Qhh5 Rc8 a8B Nc7 Qe8 Nd5 Qhf7 Ne3 Qb4 Rf6 Qbc4 Ng2 Nd3+ Kf5 Qb4 Bg5 e3 Rc7 Be2 f1Q Nd2 Qh1 Nf1 Bf4 Qbc4 Kg5 Qb4 Kh4 Qbc4 Bb5 Ke4 Re6 Kf5 Bg5 Qf4 Re7 Kg6 Rc1 Kg7 Re6 Bb4 Nf8 Bc3 Ng6 h3 Rd6 Nh2 Kh5 h4 Rd5 Re7 Rc5 Be4 Bc6 Reb7 Ra5 B4f3 Qg1 e4 Qa7 Qee6 Ne3 Qee8 Qaa8 Bh1 Ng2 Kg8 Kh6 h5 Nh8 Qf1 Bf4 Kf8 Kg5 h6 Kh4 h7 Bg5 Kg7 Ne1 Rg1 Ng2 Q1f4 Ng6 h8B Kh3 Kh7 Ne7 Bg7 Ng6 Bf8 Nh8 Q4f5 Kh4 Kg7 Kg3 Nf4 Kf2 Q5f6 Ne1 Rg3 Ng2 Nd3+ Kg1 Qf4 Bh6+
2QN2N1/3PbP1q/Q3QN1R/1P2K3/B1Q1nbrB/2R1nkr1/2q1p3/2b2B2 w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kd6 Kf4 c5 d4 a5 b4 h5 g7 c4 g6 c3 g5 c2 b7 h4 f6 h3 b5 e6 Qg4 h2 Nh3 a4 Nd2 a3 Ne4+ Kc7 d6+ Kd7 d5 a2 Ke5 Ne7 g8Q Ra3 g7 Qe8 g6 Rh4 Bg5 c1B Nf4 Na6 b8Q Qc8 Qa8 Nc5 Qa6 Rg3 Rb1 Qc6 Rb3 a1B+ Rc3 Nf5 Qe2 Bab2 Qc4 Rhg4 Bh4 Ne3 Qf7+ Be7 g8B Bd2 g7 Bbc1 Bh7 Qc8 g8N Qc7 Qg6 Qc6 f7 Qc8 Ng5 Ne4 Nh5 Qc5 Rg1 h1Q Nhf6+ Kd8 d7 Kc7 Qh6 Qh2 Rh1 Qc6 Kd4 Kd6 Bg6 Qf2 Bh5 Qf5 Rh3 Qh7 Qg6 Rf4 Bd1 Rfg4 Ba4 e5+ Kd3 Rg2 Ne6 R2g3 Nd8 Nf2+ Ke2 e4 Rh1 Ke5 d6 Nd5 Rh3 e3 Qh6 Ne4 Kd3 Kf5 Kd4 e2 Qg6+ Kf4 Rh2 Ne3 Qh6+ Kf3 Ke5 Rg1 Qg6 Qc7 Qf5+ Rf4 Qfe6 Rg3 Nb7 Qd8 Bg5 Rg1 Rh6 Rg2 Bh4 Qa5 d8Q Rg3 d7 Rfg4 Rd3 Qc3+ Rd4 Qc2 Qdc8 Nf5 Nd8 Bg5 Rd3+ Ne3 Rc3 Bf4+
b2BNqNn/1Q1p2P1/1b2r1NR/5rR1/qQnP1B1b/3B1P2/k1B5/3Q1K2 w - - 0 1 legal: proof: b4 c5 bxc5 b5 e4 Qb6 a4 Qc7 axb5 Qd8 h4 f5 exf5 g5 hxg5 a6 bxa6 Qa5 Ra4 Qb6 Ra1 Qd8 c4 Kf7 d4 e5 g4 h5 f6 Ke6 f3 e4 c6 h4 g6 e3 c7 e2 g5 h3 g7 h2 g6 Rh3 f7 Rh4 c5 Kd5 a7 Kc4 c6 Qe7 Ra5 Qe6 Nh3 Qd5 Na3+ Kb4 Nc4 Rh8 Nf4 Qc5 Nd6 Nh6 g8N Bb7 c8Q Qf5 c7 Nc6 g7 Ne5 Qd8 Nc4 Qe7 Re8 c8Q Ba8 Ng6 Kc3 Bf4 Kb2 Rb5+ Ka2 Qb7 Qc2 Rc5 Qa4 Rg5 Rh7 Kf2 e1B+ Kg2 Bh4 Bd3 Rh8 Kf1 Rh7 Qee1 Re6 Ne8 Bc5 f8B Nf7 Qeb4 Bb6 Be7 Nh8 Bd8 Rh5 Qc8 Bd5 a8B Bc6 Qb7 Bd5 Rhg1 h1Q Bc2 Qh3+ R1g2 Qf5 Rh2 Qf8 Rh1 Be1 Rh3 Rh7 Rh6 Bh4 Qb8 Be4 Bc6 Bd5 Bb5 Ba8 Qb7 Na5 Bbd3 Nc4 Rhh5 Rh6 N6e7 Rhf6 Ng6 Rf7 Rh6 Rf5
q2NN1K1/Pq1b4/1Bn2Q1P/r2Q3B/bBRrP3/2NkN1qR/R1n2p2/8 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Bd6 f4 Ba3 fxe5 Bf8 g4 h5 gxh5 b5 a3 b4 Bh3 b3 Bf1 Bb4 axb4 Bh3 Ra4 Bf5 Ra1 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 f6 Kg6 b2 Kg7 f5 h4 g4 e4 c4 d4 g3 d6 Ke6 h6 c3 h7 c2 d5+ Kd7 a6 g2 h5 f4 a7 f3 e6+ Ke8 d7+ Ke7 h6 Kd6 e7 Ke5 e8N f2 b5 Na6 b6 Rb8 b7 Ra8 b8R Qb6 d8B Bh3 d6 Bd7 Nd2 Kd4 Rh3 b1B Ba3 c1Q Bb4 Bc2 Be2 Ne7 Rc8 Rf8 h8Q Qb7 Bh5 Bca4 Ra2 Rf5 Nf1+ Qd2 Rc1 Ra5 Ne3 Nc6 Rc4+ Kd3 Bb6 Rd8 Ne2 g1Q+ Kf8 Qg5 Qf6 Qg3 Nc3 Qa8 Qb3 Qb2 Kf7 Nc5 Kf8 Ne6+ Kf7 Ned4 Kf8 Bg4 d7 Nc2 Kg7 Rb8 d8N Bd7+ Kf7 Qb1 Bd4 Rbb5 Bb6 Rd5 Kf8 Rd4 Kf7 Qc7 Kg8 Qe5 Rc5 Qc7 Qd5 Qcb7 Rc4 Qg1+ Bg6 Qh2 Bh5 Qg3+
1b2Br2/PRn3r1/1qQ1P2p/R2N4/4N2q/1RBrQ3/K2PBN2/b1Nn2k1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 a5 g4 f5 b4 e5 fxe5 Ne7 bxa5 Be6 h3 Bf7 Bb2 Ng8 Bc1 Bh5 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Qc8 Bh3 Qd7 Bf1 Qd8 e4 Kf7 a4 c5 g5 b5 f6 Kg6 d6 c4 f7 g2 a6 b4 d7 b3 e6 b2 a5 c3 e5 Kf5 a7 Ke4 e7 h6 e8B c2 g6 Bg7 f8N Na6 e6 Nb4 a6 Bf6 g7 Rc8 a8Q+ Nc6 a7 Kd4 Ra5 Be5 Be2 Bh2 Nc3 b1Q Na2 Nce7 Qc6 Rc7 Nh3 g1B Nh7 Be5 Nf6 Nf5 Nf2 Qb6 Rh3 Bgh2 Nd5 Qh4 d8R Ne3 Rb8 Ne7 Rb7 Rf8 g8N Bg7 Ba3 c1R Ngf6 Rc3 Qb3 Nd1 Ne4 Rd3 Nc1 Rd7 Re3 Bb8 Bb4 Ke5 Bc3+ Kf5 Nb4+ Kf4 Rg3 Nd5 Rh3 Nc7 Nd5+ Kf5 Qa3 Be5 Qac5 Bf6 Qe3 Rg7 Bb4 Ba1 Bc3 Nb2 Rg3 Na4 Kd1 Nb2+ Kc2 Nd1 Bb4 Ke5 Kb1 Kf5 Ka2 Ke5 Nh1 Kf5 Rf3+ Kg4 Bc3 Rf6 Neg3 Kh3 Ne4+ Kh2 Nhf2 Rf8 Rf7 Qd4 Rb3 Qb6 Re7 Kg1 Rd7 Na8 Rb7 Nc7
2B2bQ1/2Q1N2b/1NQBPr2/3qr1r1/4PQ1N/1k6/2n1RpPK/3RR1rn w - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 Kf2 Kd7 Kg3 h5 e4 f5 d4 c5 e6+ Kd6 g6 c4 g7 c3 a6 c2 b6 Nh6 g8Q Bg7 a7 Na6 b7 Bd7 Nf3 Nb4 Nc3 Bf8 Ba3 c1R Ba6 Be8 Ra2 Bg6 Re2 Ng4 Qa4 Rh6 Rhe1 h4+ Kh3 Rb8 a8N f4 Qc2 Rc8 Nb6 Bh7 b8Q+ Rc7 Bb7 Rf6 Bc8 Rd1 Qc1 Qd7 Qa8 Rc5 Qa4 Nc2 Qc4 Kc7 d6+ Kc6 Ncd5 Qd8 d7 Nf2+ Kh2 h3 Nh4 f3 Kg1 Rd3 Qf4 Re3 Qc3 Kb5 Ne7 Re5 d5 Rd3 d6 h2+ Kf1 Rg5 Bb4 Rdd5 Bc5 Qe8 d8R Qc6 d7 Rde5 Ba3 Qd6 Qc6+ Ka5 Re8 Qd2 d8Q Qd3 Qdc7 Qd8 Bb2 Kb4 Ba3+ Kb3 Bc5 Qd3 Rd8 Qc4 Rdd1 Qd5 Nhf5 Nh1 Nh4 Ng3+ Kf2 h1R Ba3 Rg1 Bd6 Na3 Ke3 f2 Kf3 Rh5 Kg4 Nh1 Kh3 Rhg5 Kh2 Nc2
2r1RR1K/kbR5/BbP2BbQ/3nN2B/1pP1N1nR/1NP2q2/Q5r1/3b4 w - - 0 1 legal: proof: e4 a5 c4 b5 h4 f5 exf5 g5 hxg5 c5 a4 b4 d4 Ra6 dxc5 Rb6 Qd4 Qc7 Qd1 Rb5 axb5 Qc6 Nf3 Qf6 Ng1 Qc3+ bxc3 Bg7 Qd5 Bh6 Qd1 Bf8 Kd2 Kd8 Kd3 Kc7 Kd4 Kb7 Ke5 d5 g4 h5 f4 h4 g6 d4 g7 h3 f6 d3 b6 e6 f5 d2 f7 a4 c6+ Ka8 g5 h2 f6 a3 g6 a2 b7+ Ka7 Nf3 Ne7 g8N Kb6 g7 Bd7 Be2 Nc8 Qa4 d1B Bg5 Be7 f8R Bd8 f7 Ne7 Kf6 e5 Nbd2 e4 Nb3 e3 Ne5 Bc8 Bh5 e2 Re8 e1Q f8R Qd2 Kf7 Nd5 Nf6 Qf2 g8B Nd7 Kg7 Qe2 b8Q+ Bb7 Be6 Qf3 Ne4 N7f6 Bc8 Ng4 Qd6 Bc7 Qa3 Bd8 Qb2 Ka7 Qh6 Bb6 Bf6 Rg8+ Kh7 Rg7+ Kh8 Rc7 Rc1 a1R Re7 Ra6 Qa2 Ra5 Re1 h1B Rc2 Ra6 Rh2 Bg2 Rd7 Bf1 Rh4 Bd3 Nf2 Bg6 Ne4 Ba8 Bb7 Rc8 Rc7 Ra4 Ba6+ Bb7 Qa1 Ra2 Re3 Rg2 Qa2 Bf7 Rd3 Nde3 Rdd8 Nd5 Rde8 Bg6
1R1KR3/1P1N3r/2b5/1rP1NRBk/pPn5/2QB2nB/2r2Qb1/rq2BN2 w - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 g5 a4 f5 axb5 e6 e4 f4 h4 f3 hxg5 Nh6 g6 Ke7 g5 Ke8 g7 Bd6 g6 Bg3 fxg3 Ng8 g4 f2+ Kd2 Qe7 g5 Qf8 Bh3 f1N+ Ke1 Ng3 Bf1 Nf5 exf5 Qf6 Qe2 Qe7 Qd1 Qd8 Kd2 a5 Ke3 h5 Kd4 d5 Ke5 d4 c4 h4 b6 h3 f6 a4 f7+ Ke7 f8B+ Ke8 b7 d3 c6 d2 c7 h2 Bb4 Ra7 c5 Na6 Qc2 d1R Nf3 Bd7 c8B Ne7 Kf6 e5 g8N e4 g7 e3 g6 e2 Nbd2 e1R Ne5 Nc7 Bd3 Be6 Qc3 Nb5 Nf1 Re2 Bg5 Bd5 Bh3 Bc6 Ke6 Qb6 Nf6+ Kd8 b3 Nf5 Nd7+ Ke8 Ra2 Rf2 Re2 Ra5 Rg1 Ng3 g8Q+ Rf8 g7 h1B Qh7 Ra1 g8R Nd6 Qf5 Bhg2 Qf2 Nc4 Re4 Rh4 Rf4 Rh7 Rf5 Qb5 Rh8 Na3 Kd6 Nc4+ Kc7 Rg8 Qcd4 Rf8 Be1 Qb4 Qc3 Rb5 Bh6 Ke7 Bg5+ Rf6 Rb8 Ke6 Ng6 Kf7 Kd8 Kg7 Nge5 Rg6 Be7 Kh6 Bg5+ Kh5 Rh1 Qa3 b4 Qa2 Rh2 Qb1 Qfd2 Bh1 Re2 Bhg2 Qe3 Rf6 Qf2 Re6 Nf7 Rd6 Re8 Rd4 Ne5 Rd5 Be4 Rd2 Bd3 Rc2
1R1qbK2/1R1Q1qr1/3r2Q1/kB2Pp2/bN2R2N/P1r3N1/P2n3B/3R1b1Q w - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 a4 g4 a3 bxa3 Nf6 g5 Ng8 h4 f5 Qa4+ Nd7 Qb3 Ndf6 gxf6 g5 Qd1 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Be6 Rh4 Bd7 Rh1 Bc8 Kf2 Kd7 Ke3 c5 Kf4 Kc7 e4 Kb6 d4 h5 e6 g3 Ke5 h4 g6 h3 d6 g2 d7 h2 Kd6 c4 d5 c3 e7 c2 e8R Rh3 g7 Re3 f7 Rh3 f8N Rf3 Bf4 c1Q Nc3 Rd3 Ng6 Ka6 Rb1 b5 Nge2 g1R Ng3 b4 Nh4 Nf6 g8Q b3 Qg6 b2 Ke6 Bb7 Kf7 Rc8 d6 Bc6 Kf8 Ka5 Nd5 Qc4 Nb4 Ba4 e5 Rd2 Qe1 Qb3 Bb5 Ne4 Qc1 Rgg2 Re1 Rc3 Re3 Rdd3 Qh1 Nd2 Rd1 b1B Re4 Bc2 Rb1 Rd4 Rd1 Bd3 Rb1 Qg5 d8R Bf1 d7 Rd6 Rb8 Rg1 Rd1 Qd8 Rb7 Qc4 Qf3 h1B Qg2 Qdc8 d8Q+ Q4c7 Qd7 Q8d8 Qh2 Bf3 Qh1 Bh5 Ne2 Rg4 Bh2 Rg5 Ng3 Rg4 Qf6 Rg7 Qfe6 Qdc8 Rd8 Be8 Qg6 Qa8 Rdb8 Qd8 Rc7 Qd5 Rcb7 Qf7+
R3n3/QRQBnr2/1Nb3k1/qq1P4/5P1b/B1pN3R/1Q1NNK1P/1q4n1 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 d5 exf5 b5 a4 d4 axb5 d3 cxd3 a4 d4 Nf6 d5 Ra5 bxa5 Ng8 f4 Kf7 d4 e5 f6 g5 d6 c5 d7 g4 b6 c4 d5 g3 a6 a3 h6 c3 h7 g2 a7 a2 a8N e4 b7 e3 Qd2 e2 Kf2 e1N Bb5 Be7 Qb2 Nc2 Nd2 Qa5 d8Q Kg6 f7 Na6 b8Q Bb7 Ne2 Nd4 Nb6 Nf3 Bd7 Qb5 Qa7 Bc6 Qdc7 Ng1 Rb1 a1Q f8N+ Kf7 Ng6 Qaa5 Ne5+ Kf6 Qcb8 Nc7 Nd3 Ne8 Qbc7 Kg6 Ra1 Bg5 Ra4 Ne7 Ra2 Rf8 h8R Qab4 Rh3 Q4a5 Qc2 Nf3 Nc8 Qb2 Qab8 Qab4 Ra8 Rf7 Qba7 Qa5 Rd1 Qbb4 Ba3 Qb2 Rb1 Bh4+ Ng3 Qbb4 Qc1 Qc4 Rb7 Qcb5 Qb2 g1Q+ Ke2 Qh1 Kf2 Qb1 Nb6 Bf6 Ne2 Ng1 Rh5 Bg5 Rh3 Bh4+
1KR1B1n1/b1Q2B1k/7q/P3B2r/n1q1p1b1/2PQ1R1N/1B1R1NnP/4N1q1 w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 c5 g4 h5 gxh5 f5 e4 b4 exf5 Ra7 d4 Rb7 dxc5 Rb5 axb5 Bb7 Qd4 Ba6 Qd1 Bc8 Ke2 Kf7 Ke3 e5 Ke4 g5 Kd5 Kg7 f4 b3 c6 d6 b6 e4 c3 b2 f6+ Kh7 f5 g4 b7 g3 f7 g2 h6 Qb6 f6 Be7 f8R Kg6 c7 Bd8 h7 Qe3 f7 Qf4 Bc4 Nd7 Kc6 d5 b8Q d4 Nh3 g1Q Qd3 Qh4 Nf2 Nh6 Nd2 b1Q Bb2 Kg7 Ra2 Bg5 Nf3 Qhg3 Ne1 Be3 Qa7 Q1g2 Rf1 Qf4 Rd8 Qgf3 f8N Qe2 Bf7 Ng8 Ng6 Nb6 Rf8 Qh4 Nf4 Bg4 Kb7 Na4 c8B Qh6 N4h3 Qbd1 Bd7 Qc1 Qb5 d3 Kb8 d2 Qd3 d1N Rc8 Bb6 Bb5 Ne3 Bbe8 Ng2 Qc7 Qce3 Bc1 Qd4 Rd2 Qee3 Bb2 Qc4 Nh1 Qg1 Rf3 Nf6 N1f2 Ba7+ Kb7 Rf8 h8B+ Kh7 Bg7 Rg8 Bh8 Rg5 Bg7 Ng8 Be5 Rh5 Ka8 Bd4 Kb8 Ba7+
1K1B1RB1/1qnbb2P/6BQ/r2BP1qN/2QrN1N1/1p1Q4/r2R2qP/k7 w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 g4 e5 f4 h5 gxh5 d4 fxe5 b4 c3 Nc6 cxd4 Na7 d5 Nb5 axb5 Ke7 Na3 Kd7 Nb1 Ke8 Kf2 Kd7 Ke3 c5 Kf4 f5 d4 g6 e4 b3 h6 c4 h7 c3 a6 c2 d6 Ke6 d7 Ra7 b6 Rb7 d5+ Ke7 e6 Kd6 a7 Kc5 Ke5 Kb4 a8B f4 e7 g5 Kd6 f3 e5 f2 Nc3 g4 Qd3 g3 Ra2 g2 Nh3 g1Q Nf4 Nf6 Ne4 Ra7 b7 Qg8 b8N Ra3 Qc4+ Ka5 Nh5 Qf7 Bg5 c1R Rd2 Bh6 e8B Qg8 Bg6 Qe7+ Kc7 Rd1 d6 Bf8 Bd5 Ra2 Bg2 Qeg7 Rf1 Be7 d8Q Bd7 Qf8 Ne8+ Kb7 Q7f7 Qh6 Nc7 Bh3 Qgg7 Bhe6 Qf4 Bh4 Qg5 Bef7 Rf8 Bg8 Rda1 Ka7 Rf3 Kb7 Rd3 Ka7 Rd4 Kb7 Be6 d7 Bf5 d8Q Bd7 Qe2 Kb4 Qc4+ Ka3 Ka7 Bb5 Nd7 Qf7 Ndf6 Bd7 Ng4 Qf3 Rfd1 f1Q Kb8 Q1g2 Rf1 Qf7 Rf5 Qg7 Rf8 Qf7 Rd1 Kb2 Rd2+ Kb1 Qc8 Ra5 Q8a6 R1a2 Qd3+ Ka1 Qc6 Qe3 Bf6 Qg5 Qcc4 Ba3 Bd8 Be7 Bc6 Qd5 Ba8 Qc6 Bb7 Qa6 Bbd5 Qb7+
q2q2QB/5PN1/B1n1q1P1/1BRN1KB1/1P3N1r/1kpQ3r/1br3Rb/3R4 w - - 0 1 legal: proof: c4 b5 h4 f5 e4 e5 a4 d5 cxd5 g5 hxg5 Na6 axb5 Be6 Nf3 Nc5 Ng1 f4 f3 Bf5 exf5 e4 Nh3 e3 Ng1 Ne4 fxe4 Bc5 Nf3 Bb4 Ng1 Bf8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 b4+ Kd4 f6 a5 f7 c5 e5 h5+ Kf5 e2 g4 Kc4 d4 a4 g6 h4 g7 f3 d6 a3 e6 a2 d5 h3 g5 f2 b6 h2 e7 Rh7 e8B Rc8 b7 Be7 b8B Rc6 g6 Bf6 d7 Qc8 d6 Rh8 Nc3 Bd8 Qd3+ Kb3 Bg5 e1R Rc1 a1B Nh3 c4 Nf4 Re4 Rg1 h1Q Rg2 Bc7 Ncd5+ Bc3 Ba7 Rh3 Bd4 Qd8 Be2 f1Q Rc2 Qa8 d8N Qd1 d7 Qhe1 Nde6 Bd6 d8R Ne7+ Kf6 Rc7 g8Q Nc6 Ng7 Rc8 Kf5 Bc7 Nfe6 Reh4 Nef4 Qdd2 Bf1 Qe7 Rd7 Qde1 Rc1 Qd8 Rd1 Bb8 Ra7 Be5 Ra5 Rc7 Rc5 Qe3 Ne2 Bh2 Nef4 Rc8 Qe4 Bb2 Qd3+ c3 Bd7 Rc7 Bc8 Re7 Ba6 Qe2 Qe4 Qe1 Bfb5 Re6 Qd3 Re2 Ne8 Rd2 Bh8 Rc2 Ng7 Qe6+
1N1QR3/q1Qq1P2/bNPn1B2/3r1P1n/5R1B/Kn4B1/1pkbq1Q1/5N1B w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 c5 g4 h5 gxh5 f5 e4 b4 exf5 Ra7 d4 Rb7 dxc5 Rb5 axb5 Bb7 Qd4 Ba6 Qd1 Bc8 Kd2 Kf7 f4 Kf6 c4 d5 Kc2 g5 Kb3 e5 h4 g4 h6 d4 a6 e4 h5 e3 h7 d3 h6 g3 a7 d2 a8Q e2 b6 e1Q c6 g2 c7 Qd4 c5 Na6 b7 Bd7 b8N Qd6 c8Q Qde7 Rh4 Q1e4 Qc7 Qf3+ Nc3 Bc8 Ne2 g1Q Ng3 Qee3 Bg2 Qc6 Nf1 Qe2 Bh1 Qd7 Na4 Bb7 c6 Qa7 Qc2 d1N Nb6 Nb2 Be3 Be7 Re1 Nc4 Bf2 Nd6 Bg3 Nc5+ Kb2 b3 Rg4 Qe3 Qg2 Ba6 Ka3 Qe2 Rh4 b2 Rg4 Kf7 f6 Ke6 f7 Bg5 f5+ Kf6 Rc4 Bd2 Rf4 Ke5 Bh4 Nf6 Bg3 Rf8 h8B Rg8 h7 Rd8 Bg7 Nb3 h8B Qe4 Bf8 Kd4 Be7 Kd3 Re2 Nh5 Beh4 Qc4 Re8 Kc2 B8f6 Qe2 Re6 Rh8 Re8 Rh6 Qab7 Rh8 Qbc8 Rg8 Q8d8 Rg4 Rf2 Rd4 Rf4 Rd5
R1nb4/1N1BPn1n/Nq4Q1/p3N3/1P5Q/K1BR4/BbqrPRN1/2k3b1 w - - 0 1 legal: proof: c4 a5 g4 f5 f4 g5 a4 b5 axb5 e5 fxe5 d5 cxd5 f4 h3 Bf5 gxf5 g4 Nf3 g3 Ng1 Ra6 Qa4 Rg6 Qd1 Rg4 hxg4 Kd7 Nc3 Ke7 Nb1 Ke8 b4 Kd7 d4 h5 Kd2 c5 Kc2 g2 Kb2 c4 e6+ Kd6 g5 c3+ Ka3 f3 f6 h4 g6 c2 g7 f2 f7 h3 b6 h2 b7 Ne7 g8B Bg7 f8R Qe8 Nd2 Rh4 Bb2 c1B Nc4+ Kc7 d6+ Kc6 d7 Kd5 d8N Ke4 d5 Nbc6 b8N Qg6 d6 Ne5 d7 Nf7 Nf3 g1B Bh3 f1Q Nfe5 Qf2 Ne3 Nc8 Ng2 Qb6 Nb7 Bg5 Na6 Bd8 Bc3 Rf4 e7 Rf3 Ra2 Rd3 Qe1 Rd2 Bg4 Qgc6 Qh4 Qc4 Ra1 Qd3 Rf1 Qc2 Rf2 Bf6 Ne1 Ke3 Be6 Bh8 Ba2 Bg7 Bh7 Bh8 Bf5 Rd4 Bd3 Bc7 d8Q Na7 Ba1 Kd2 Bd5 Kc1 Qd6 Bf6 Rb8 Bd8 Ng2 Nc8 Bb5 Rd1 Ng4 Bg7 Rf6 Bd4 Ra8 Bc5 Re1 h1N Bd7 Nf2 Ba2 Ne4 Be5 Bg1 Rf2 Neg5 Qg6 Nh7 Ba1 Bc3 Ne5 Bd4 Ref1 Bc3 Rf3 Bcd4 R1f2 Rd2 Rd3 Be3 Ng4 Bc5 Bf6 Bd4 Bg7 Ba1 Bc3 Qe6 Ne5 Qf6 Bb3 Qb6 Ba2 Bb2+
N1Q3Rq/R2BP2k/1prPP1N1/3b1n2/1n5q/B1Q4Q/1B2K2r/BrN3n1 w - - 0 1 legal: proof: c4 a5 h4 g5 g4 f5 gxf5 e5 b4 d5 bxa5 g4 cxd5 Qf6 f4 Bh6 fxe5 Bg5 hxg5 Qd8 e4 Kf8 a4 Kg7 d4 h5 d6 c5 g6 g3 d7 g2 f6+ Kf8 e6 h4 a6 c4 d5 b6 a7 h3 e5 h2 f7 Kg7 a5 c3 a6 c2 Na3 Rh5 f8B+ Kh8 g7+ Kh7 Bb5 Ne7 Qd4 Rh4 Ne2 Rh5 Nc4 Nf5 Bb2 Nh4 Bfa3 Qg5 d8B Kg8 d6 Kh7 g8Q+ Kh6 Qc3 Bb7 Nc1 Bc6 Ke2 Be8 Bd7 Qf4 Qgg3 Nc6 Bf6 Rc8 a8Q Kh7 e7 Bf7 a7 Bd5 e6 Nf5 Ne5 Qh4 Ng6 Nb4 Qh3 Rc6 Qc8 Rh6 Rf1 h1Q a8N Qh2 Rf3 Rh5 Bd4 Qe5+ Re3 Qh8 Rg3 Rh6 Ne5 Rh5 Rg8 Rh6 Ng6 Rh5 Nb3 c1R Bf6 Rb1 Nc1 Na6 Bc5 Nb4 Ra7 Nd3 Bca3 Nb4 Bd4 Qe4+ Qce3 Rh4 Ba1 Rc4 Qf3 Rc6 Bdb2 Rh2 Qh3+ Qh4 Qc3 g1N+
N1q4K/r1P2r1N/Rn2n2r/P1N2N1B/4q3/R1P2n2/4pBQR/2k1B1bQ w - - 0 1 legal: proof: g4 a5 d4 c5 dxc5 f5 f4 g5 fxg5 f4 e4 b6 b4 f3 bxa5 Bb7 g6 Bd5 h3 Be6 g5 Bg4 hxg4 f2+ Kd2 Ra6 Bg2 f1N+ Ke1 Ne3 Bf1 Nf5 exf5 Ra8 a6 h5 Ke2 e5 Kd3 Ke7 Ke4 h4 a4 d6 c3 b5 c6 h3 a7 h2 c7 b4 f6+ Ke6 f7 b3 g7 b2 a5 Rh6 g6 Qe7 g5 Qe8 Nd2 b1R Ra3 Nd7 Ne2 Ne7 g8R Nd5 g7 Nf4 g6 Ra1 Ng3 d5+ Ke3 e4 Kd4 e3 Be2 Qb8 Bh5 e2 Nb3 Ne5 Bd2 Rc1 Qg1 Rf1 Be1 Kf6 Rh8 Kg5 Rg8 Bb4 f8B Qb7 Bc5 Qa6 Ke3 d4+ Ke4 d3 Rf8 d2 g8N d1N g7 Rf2 Nf6 Nb2 Be3 Bd6 Nc5 Na4 Rh8 Rf3 B3f2 Ne6 Kd5 Kf4 Nh7 Re3 Rb8 Rf3 Rb6 Qb7+ Rc6 Qb8 g8Q Qf8 Qf1 Qd8 Rg1 h1Q Ra6 Qe8 Rg2 Qd7 Bg1 Qh4 Rf2 Ke3 Qh3 Qb4 Qh1 Rf7 Qg7 Nf3 Nf5+ Kf4 Qg6 Qe8 Qg7 Be5 Rh2 Bd4 Kd6 Qb1 Qgg2 Qe4 Bgf2 Qg8 Bh4 Bg1 Bhf2 Rb8 a8N Rb7 Ra2 Ra7 Ra1 Qc8 Ra3 Rff6 Ke7 Nb6 Nf8 Rfg6 Kf7 Rf6+ Kg8 Rf7 Ra4 Ke5 Ra1 Kd5 Ra3 Kc4 Nb3 Kd3 Nc5+ Kc2 Bg3 Qb8 Bgf2 Qbb7 Nh7 Kc1 Kh8 Qc8+
1N6/1rpR1Rq1/1Pq1P1Bb/3r1P2/qn4N1/4RQrQ/k1B2b1B/4N1NK w - - 0 1 legal: proof: c4 b5 h4 f5 e4 e5 a4 d5 cxd5 g5 hxg5 Na6 axb5 Be6 Nf3 Nc5 Ng1 f4 f3 Bf5 exf5 e4 Nh3 e3 Ng1 Ne4 fxe4 Bc5 Nf3 Bb4 Ng1 Bf8 b4 Kf7 d4 h5 g4 a5 e5 a4 g6+ Ke7 g5 a3 e6 Kd6 b6 f3 b5 a2 g7 e2 Kf2 e1R g6 h4 b7 h3 b8N h2 b6 Rh7 Nd2 Ra4 Bd3 Rb4 Bc2 Ne7 g8B Rh6 g7 Qc8 Bh7 Qb7 g8N Rb5 Bg6 Nc6 Nf6 Qa7 Ng4 Re3 Kg3 f2+ Kg2 Rh4 Ndf3 Rh8 Ne1 Nb4 Qf3 Bh6 Rb1 a1B Rb3 Qa4 Bb2 Re5 Re3 Ra5 Bc1 Ra7 Ba3 Rg8 Bc1 Rb7 Bd2 Ke7 d6+ Kf8 d5 Bd4 d7 Ke7 Bc1 Kd6 d8Q+ Kc5 d6 Kc4 d7 Rd5 Qh4 Bc5 d8R f1Q+ Kg3 Qd3 Kg2 Qd4 Rd7 Qg7 Qhh3 Bd4 Bb2 Bc5 Be5 Bd4 Bd3+ Kb3 Bc2+ Kb2 Ne2 Ka1 Rg1 Ka2 Kh1 Bc5 Rg2 Bd4 Ng1 Bc5 Rf7 Bd4 Rge2 Bc5 Rd3 Bf2 Ree3 Rb5 Rdd7 Rd5 Kg2 h1Q+ Kf1 Qa3 Nf6 Na6 Bh5 Ra5 Qf4 Qc6 Qff3 Qh8 Bh2 Rg3 Ng4 Nb4 Bg6 Qg7 Qf4 Rf3 Kg2 Qaa4 Kh1 Rg3+ Qf3 Rd5
K1N1Rq2/P2r1QB1/Q1R1B1Qq/2bNnBb1/4P1b1/5RPp/1B5r/q5k1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 a5 b4 e5 bxa5 f5 fxe5 g4 Qc2 f4 Qd1 Na6 g3 Nc5 gxf4 g3 f5 g2 Qb3 Ne4 Qd1 Ng3 hxg3 Bh6 Qb3 Bg7 Qd1 Bf8 Kf2 Ke7 Ke3 b5 Kd4 h5 Kc5 b4 Kc6 b3 d4 h4 a4 h3 e4 b2 a6 Be6 Kb7 c5 a5 c4 f6+ Kd7 d6 c3 f7 c2 d5 Qg5 a7 Ne7 a6 Qf5 Qf3 Re8 a8Q Rd8 Ne2 g1Q Ra3 Nc8 Nbc3 b1Q+ Nb5 Qh7 Nc3 Qg2 Bc4 Ne7 Bb2 c1B Na7 Qf5 Nc8 Bg7 f8B Qh5 Qf7 Bgh6 Bg7 Bcg5 Rc1 Bg4 a7 Rdf8 e6+ Kd8 d7 Qf1 Qb8 Rhg8 Qd6 Qa1 Qa6 Ng6 Ka8 Kc7 e7 Ne5 e8B Be7 d8R Bg5 Ba4 Qh6 Bd7 Bc5 Re8 Rh8 Qfg6 Rf2 Bf5 Rh2 Bb3 Rh7 Rc2 Bb6 d6+ Kc6 d7+ Kc5 Bbe6 Kd4 d8Q+ Ke3 Qd7 Bc5 Qdf7 Kf3 Rc1 Kf2 Nd5 Kg1 Rf3 Bb4 Rc6 Bc5 Bf8 Qf2 Qff6 Rd7 Bg7 Bb6 Qgf7 Qc5 Q7g6 Qf8 Qff7 Bc5
R1Q2NB1/1q1np1P1/3Bb3/1Q1b4/K1P1b2Q/4RP2/brkbR2N/1r1N3Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 f5 c4 g4 f6 d3 b4 g6 b3 dxc4 Qb6 g7 Nc6 c5 Nd4 g5 Qe6 Kd2 Nf3+ Kc3 Qd6 axb3 Qe6 b4 Qf7 b5 Qg6 fxg6 f5 Kd3 f4 Kc3 Nh4 Kd2 f3 Qe1 f2 Qd1 Nf3+ exf3 Ba6 Ke2 Bb7 Kd2 Bc8 Kc3 d5 Kb3 Kd7 b6 Kc6 b7 h5 b8Q a5 Rh2 d4 Nh3 Kd5 c6 d3 c7 Kd4 Ra3 h4 Nc3 d2 Bc4 f1B Qb5 Be6 c8Q Bd3 Re2 Be4 Nf2 h3 Qh1 d1B Ka4 h2 b4 B6d5 Ng4 Nf6 g8Q Nd7 g7 Rb8 Qh7 Rb6 g8N Bh6 g6 Bd2 Qh4 Rh7 g7 Rhh6 Qf1 h1B N8f6 Bg2 Nh7 Bh3 Nh2 Bhe6 Qh1 Rg6 Nf8 Rg2 Rb3 Rb8 Ba3 Rg1 Rf2 Be2 Rg2 Rb1 Nd1 Rb2 Rc3 Rb7 Ba2 Bec4 Re2 Rb8 Rce3 Rb6 Bb1 Ba2 c4 Rb7 Qbc6 Rb6 b5 Rb8 Bd6 Rb6 Ka3 a4 Bd3 Rb7 b6 Rb1 Nb2 Kc3 Qb5 Ra7 b7 Ra5 Qa6 Rb5 b8R Rb6 Ra8 Rb7 Re1 Rb6 Qb5 Rb7 Bf1+ Kc2 Nd1 Rb6 Bh3 Rb8 Qba6 R8b2 R1e2 Bg8 Bf5 Bb3 Nc3 Bge6 Kb4 a3 Bh7 a2 Bg8 a1Q Qab7 Qa6 Qb5 Qc6 Ka5 Ba2 Ka4 Qb6 Nd1 Qb7
Bn3n2/1Pb3r1/1Q1p1Q2/3kr3/QrN4q/2RrR1RP/3P1Q1N/3r1BBK w - - 0 1 legal: proof: b4 c5 bxc5 b5 cxb6 h5 c4 f5 a4 h4 e4 h3 exf5 Kf7 c5 Ba6 gxh3 Be2 h4 Ke8 h5 Bb5 axb5 Rh6 Nc3 Rh7 Nb1 Rh8 f4 Kf7 Kf2 e5 Kg2 g5 h6 a5 h7 d6 c6 a4 f6 Ke6 c7 a3 c8B+ Kd5 h3 a2 f7 e4 b7 e3 f5 e2 b6 e1R f6 g4 Bb2 g3 Nf3 Qc7 Na3 Kc5 Rc1+ Kd5 Bd4 a1R Qa4 Na6 b8Q Be7 f8R Qd7 f7 Rd1 Rc3 Qd8 Rg1 Rab1 Kh1 Rb4 Nh2 Nf6 Re8 Nd7 Nc4 Nf8 Qc7 Rg8 h8Q Nb8 Qf6 Ra5 Bf2 Rg7 Bb7+ Nc6 Ba8 Rc5 b7 Nb8 Ng4 Rcb5 Qb6 g2+ Kh2 Ra5 Bc5 Rab5 Qf2 Bh4 Ree3 Qg5 Qf6 Qh5 Qf2 Bd8 Qf6 Qh4 Bd4 Nh7 f8Q Bc7 Qf2 Ra5 Q8f6 Rab5 Rh1 g1R Bc5 Rg3 Rg1 Qh5 Kh1 Nf8 Nh2 Qh4 Bd4 Rf3 Rg3 Ra5 Re6 Rd3 Ree3 Rab5 Re1 Qh8 Q2f4 Qh4 Bg1 Rc5 Ree3 Ra5 Qa6 Kc5 Qf2 Rab5 Ne5+ Kd4 Nc4+ Re5 Qb6+ Kd5
n3Qb2/qB4rb/1R1P4/k1Bb2Q1/2B2Nbn/p1P5/4RPQ1/K1N1nN1N w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 h4 c4 hxg5 Bh6 Qf3 Bg7 Qd1 Bf8 Be2 d5 Bd3 c3 dxc3 d4 Bf1 d3 Rh6 a5 Rh1 d2+ Ke2 Ra6 Nh3 Rd6 Ng1 Rd3 cxd3 Qb6 Qc2 Qc7 Qd1 Qd8 b4 Kd7 g4 Kc7 g6 Kb6 d4 h5 Kd3 e5 Kc2 e4 Kb2 a4 g5 h4 f6 e3 d5 e2 d6 e1N f7 h3 g7 h2 g6 Nc2 Bc4 Qg5 Qf3 d1B Be3+ Nd4 Ne2 Be7 f8N Qg4 Nd2 Bg5 Ng3 Qd7 Qg2 Qd8 Ne6 Rh7 Nf4 Rh3 Ndf1 Bd7 Ra2 a3+ Ka1 Bc8 Re2 Nh6 g8Q Ba4 g7 Bb7 Bd5 Bc8 Bb7 Nf5 Rg1 Nc6 Nh1 Nb8 Qe8 Rh5 g8B Nd7 Bc4 Be7 Qeg6 Rg5 Qf6 Rg7 Qfg5 Ka7 b6+ Kb8 b5 Nh4 Bb3 Ndf3 Bc5 Ne1 Bc4 Qf8 Bf3 Bb3 b7 Nb6 Bfd5 Ka7 b8N Ba4 Nd7 Bc2 Ne5 Qf7 Bb7 Bh7 Ned3 Bf8 Nc1 Bh3 Bb4 Na8 b6+ Kb8 Bc5 Bg4 Be4 Kc8 b7+ Kd7 b8Q Qe7 Nd5 Kc6 Bf3 Qa7 Qe8+ Kb7 Nf4+ Be4 Ba2 Ka6 Bb3 Bc2 Bc4+ Ka5 Bb7 Bh7 Nd2 Nef3 Rd1 Ne1 Nf1 Bh5 Rdd2 Bf3 Rb2 Bg4 Nhg3 h1B Rb6 Bf3 Qh3 Bhg2 Nh1 Bg4 Qg3 Bc6 Qg2 Bd5
N7/b5PK/1r2qRB1/Q3N3/2RB1RPb/rPnpbB1b/8/k2NN1rQ w - - 0 1 legal: proof: g4 c5 e4 f5 exf5 g5 fxg6 b5 d4 b4 dxc5 b3 f4 Na6 h4 Bh6 f5 Bf8 axb3 Nc7 b4 Ne6 b5 Ng5 hxg5 Bh6 Nd2 Bg7 Nb1 Bf8 Kd2 h5 Kd3 d5 c4 Kd7 b6 Kc6 g7 e5 b7 Nh6 g8Q a5 b8N+ Kb7 g6 d4 Ke4 a4 g7 a3 c6+ Kb6 b3 Ka5 f6 Kb4 f7 h4 c7 a2 c5 h3 c6 h2 Be3 d3 Nf3 Ra7 Nd7 Ra3 Nc3 Bc5 f8R Qe7 Be2 Nf7 Kf5 e4 Kg6 Nd6 Rf1 h1R Rc1 a1B Nde5 Bb7 c8N Nb5 c7 Ba7 Qd5 R8h4 Bf2 e3 Nb6 R4h3 Qd2 Rg1 c8B Rh8 Bd1 e2 Na8 e1B Bf5 Qd7 Be3 Bh4 Ne1 Qe7 Rf7 Rb8 Rf6 Qe6 Qh1 Bg2 Kh7 Bh3 Bg6 Rb6 Rc2 Bb2 Bd4 Bc1 R1f2 Ra4 Rf1 Ka3 R1f4 Ra5 Bf3 Ra4 Qf2 Be3 Nd1 Raa6 Rc6 Nc3 Rc4 Ra5 Qc2 Ra4 Qc1+ Ka2 Qa3+ Kb1 Qb4 Ra3 Qa5 Ka1
n2R1nRq/n4QR1/N5PB/k1P5/3K1N2/3Bqr1N/b2N1pP1/n3r1BQ w - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Be7 c5 Bd6 Rh6 Bc7 Rh1 Ba5 bxa5 Qf6 Bf4 Qb6 Bc1 Qd8 Kf2 f5 Ke3 d5 c4 Kd7 g6 Kc7 e6 h5 c6 h4 e7 f4+ Kd4 a3 e8R h3 e4 f3 b6+ Kd6 a6 h2 b7 Kc7 a7 Kb6 c5+ Ka5 c7 a2 e5 f2 e6 Ne7 Rg8 Qe8 Nd2 Nd7 b8B Nf8 Bd3 Rh3 Qe1 Bb7 c8N Rf3 Nb6 Nc8 e7 Ba6 Qd1 Bc4 Nh3 Bb3 Re1 h1Q Bh2 Bc4 Rb1 a1N Bg1 Ba2 Rb2 Rb8 a8N Na7 Nc7 Rd8 Rg7 Rd6 Rb1 Re6 Na6 Qh2 Rf1 Re1 Rb4 Qg3 Rb3 Qd8 e8Q Qgg5 Qf7 Qe3+ Kc3 d4+ Kc4 Nd7 Nd5 Qh8 Ndf4 Nf8 Kd5 Bb1 Rb8 Ba2+ Bc4 d3 Re8 Qe7 Kd4 Qe6 Nb1 d2 Bd3 Nc8 Rd8 Nb6 Rb8 Na8 Rd8 Re5 Re1 Qb3 Re2 Qa3 Qf1 d1N Nd2 Re6 Re5 Nc3 Rh5 Qb3 Rh7 Re5 Rg8 Re1+ Rhg7 Ne4 Bh2 Nd6 Qh1 Nc8 Bg1 Na7 Nf1 Qa3 Be3 Bb3 Nd2 Be6 Nd5 Qc1 Bh6 Qa3 Ndf4 Ba2 Qe8 Qb3 Qd7 Qe6 Qf7 Qe3+
1QB1b3/N1q1kqb1/1PP1n3/7R/B1b3BP/N1b2rB1/Rp1Q1Q2/1K1R1n2 w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 c5 g4 h5 gxh5 f5 e4 b4 exf5 Ra7 d4 Rb7 dxc5 Rb5 axb5 Bb7 Qd4 Ba6 Qd1 Bc8 Kd2 g5 f4 e5 h4 d5 c4 d4 Kc2 e4 c6 e3 a6 e2 h6 e1Q c5 g4 b6 g3 f6 g2 c7 Qde7 a7 Bg4 a8B Qf2+ Qd2 Bg7 c8B Qb7 f7+ Kd8 h7 Qc6 f5 Na6 f6 Be6 Ra2 Nc7 Bb5 Ne7 Nf3 g1B Ne5 Nf5 Na3 b3+ Kb1 d3 Ba4 Rf8 h8R b2 Rh5 Ne3 Bab7 Qd6 Bf3 Nf1 Bg4 Bh2 Rg1 Bc4 Rh1 Ne6 Rg1 Re8 f8Q Qc7 f7 Qf3 Qg8 Rf8 Rh1 Ke7 Nc6+ Kf6 Na7 Be5 c6 Bc3 Rg1 Ke7 Rh1 Ne3 Rd1 Nf1 Qh2 Qf6 Bf4 d2 Bg3 Qf3 Qf2 Qff4 Qh7 Qf3 Qc2 Qff4 Rc1 d1B Qcd2 Bde2 Rd1 Bed3+ Qc2 Bg6 Qd2 Rd8 Qf2 Rd3 Qcd2 Rf3+ Bc2 Kf6 f8Q+ Bf7 Qfd6 Be8 Ba4 Qf7 Qe5+ Ke7 Qb8 Qc7
1nnB3K/1Nb4r/P5B1/NQN2n1p/2RRP1Q1/kP1q2nr/2R5/1Q1N1q2 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 g5 fxe5 a5 h4 b5 hxg5 Ra6 a4 Ra7 axb5 Ba6 bxa6 Ra8 Kf2 Ke7 Kg3 h5 Kh4 f5 g4 c5 d4 a4 e6 Kd6 b3 f4 e7 c4 e8Q f3 Rh2 a3 Nd2 c3 Qb5 a2 Nh3 f2 Ne4+ Kc7 d6+ Kc8 d7+ Kc7 d5 c2 Nc5 Nf6 g6 Kd6 Kg5 Qe7 d8N Nc6 g7 Na5 Kg6 Nh7 g8R Nc6 g5 Na7 Nc6 Rd8 Na5 Ke5 d6 Nf6 d7 Nc8 e4 Qd6 Bc4 f1N Bf7 Bh6 Nf2 Qd3 Rg7 Rdf8 d8N Kd4 Ndb7 Kc3 Bf4 Kb2 Qb1+ Ka3 Nd1 c1N Bc7 Nd7 Bd8 Ne3 Rc2 Ne2 Be8 Nb8 Rc7 Rhg8+ Kh7 Rf3 g6 Bf4 g7 Ng3 Bg6 Nef5 Rc6 Re8 g8Q Bc7 Kh8 Re7 Rd6 Re3 Rd4 Rd7 Rcc4 Re7 Qc2 Rd7 Rc1 a1Q Qb1 Rg7 Qe6 Rh7+ Kg8 Qf1 R1c2 Qc3 Qed7 Qcd3 Qe6 Nh1 Qed7 Rh3 Qe6 Rf7 Kh8 Nhg3 Qed7 Nfe7 Qg4 Nef5 Rd2 Re7 Rdc2 Rh7+
RK5q/2RN1q1k/P1Nb1r2/2p2P2/Bn1Q2B1/1QP1B1Q1/2rn1nn1/1B5N w - - 0 1 legal: proof: g4 a5 d4 e5 dxe5 f5 h4 g5 hxg5 f4 b4 b6 bxa5 f3 g6 Ra6 exf3 Ne7 f4 Bb7 f5 Bf3 g5 Bg4 f3 Ra8 fxg4 Ng8 Kd2 h5 Kc3 c5 Kc4 d5+ Kb5 h4 a4 d4 c3 h3 e6 d3 e7 h2 g7 Kf7 e8B+ Ke7 a6 d2 a5 Nc6 g6 Kf6 g5+ Ke5 a7 Nd4+ Ka6 b5 Kb7 b4 Nf3+ Ke4 Bh3 b3 Ne5 b2 Ba4 Qe7+ Nd7 Rc8 a8B Ne6 Bg4 Nf6 g8Q Rh5 g7 Rh7 g6 Rc7+ Kb8+ Kf4 Be4 Kg5 Rg1 Nf4 Qgb3 Kh6 g8Q h1N g7 Nf2 Rg3 Ra7 Qg1 d1Q Nd2 b1N Nf1 Rc7 Be3 Nd2 Bb1 Rc6 Qgc4 Re6 Qd4 Qf7 g8N+ Kg7 Rh3 Ng2 Ne7 Rc6 Rh1 Rh2 Ng3 Kh7 Qe1 Rd6 Nc6 Nd5 Rg1 Nb4 Nh1 Rf6 Ra2 Nfd3 Qg3 Bd6+ Ka8 Kh8 Bf3 Qe6 Qge5 Ngf4 a6 Nbd5 Qb5 Ne4 Rb2 Rc2 Qbb4 Ndf2 Rg8+ Kh7 Qa3 Ng2 Rb7 Qf7 Qg3 Nb4 Rc7 Nd2 Qb3 Qg1 Bh5 Qh2 Bg4 Qh4 Rh8+ Kg7 Ka7 Qh7 Ra8 Qh8 Kb7 Kh7 Ka7 Qhg7 Kb8 Qh8+
1N2n3/2QR1NBp/1R1PP1q1/q3QQq1/rr5b/Bk4Bq/1P1RK1n1/1B6 w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 b5 g4 f5 a4 e5 fxe5 Nh6 axb5 Be6 h3 Bf7 Rh2 Ng8 Rh1 Bh5 gxf5 g4 Ra4 g3 Ra1 Bg4 hxg4 Bc5 Bg2 Bb4 Bf1 Bf8 d4 Kf7 e4 a5 b6 c5 g5 c4 f6 c3 d6 Ke6 g6 g2 b7 c2 d7 a4 f7 a3 g7 a2 d5+ Ke7 e6 Kd6 e5+ Kc5 e7 Kb4 e8Q Qh4+ Ke2 Qh6 d8Q Qg5 Rh6 Na6 b8B Qe7 Qd3 Nc5 Nd2 Ne6 Ne4 Ra3 Ng5 Rb3 Qc7 Nd8 N1f3 g1Q Nd4 Qd6 Qf5 Rf3 Nc6+ Kb3 Qee7 Nf6 g8R Qb6 Rg7 Qe6 Bd2 c1Q Bb4 Rf4 Ba3 Qcc5 Rd1 a1Q Rd2 Ra4 Qe8 Be7 f8B Qac1 Nf7 Qca5 Bg2 Qc8 Be4 Ne6 Bb1 Bd8 Qee7 Ne8 Qc5 Bh4 Qd4 Ng5 Rd6 Nf3 e6 Ne1 Qdf4 Ng2 Q4e5 Qbg1 Rd7 Rb4 Rg3+ Qc3 Bg7 Qd8 Rg4 Qh3 Rg3+ Kc4 Rb3 Ra4 Rb6 Qg5 d6 Rb4 Ba7 Kb3 Nb8 Rf8 Rc6 Qg6 Bf2 Rg8 Bg3 Qc1 Rd1 Qcg5 Rd2 Rf8 Nh6 Rf6 Nf7 Ra4 Rb6+ Rb4 Qfe4 Rf4 Q4f5 Rg4 Ra6 Ra4 Rb6+ Rgb4
1n4k1/KqP4q/1pN1n1rR/4PrP1/2N2B2/1R1R1q1Q/Q1NR1Q2/1b1B2q1 w - - 0 1 legal: proof: d4 a5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 a4 gxf5 a3 bxa3 g4 a4 Be7 a5 Bg5 hxg5 Kf7 Rh3 Kf8 Rh1 Ke8 Kd2 Kf8 Kd3 h5 Kc4 d5+ Kb5 d4 e4 d3 c4 h4 a4 b6 f6 d2 e6 h3 f7 h2 a6 g3 e5 g2 e7+ Kg7 e8R Kh7 f8Q Qe7 a5 Qe6 c6 Ra7 c7 Nc6 c5 Nh6 Rd8 Ng4 Be2 Ne3 Qf2 Qf5 Nf3 g1Q Qb3 d1Q Nd4 Bd7 c8N Qge1 Ra2 Qh3 Rd2 Nd5 Na3 Nf6 Nac2 Bf5 Nd6 Qh4 Qh3 Nb8 c6 Qf1 c7 Nh5 Nc4 Qg1 Nc6 Ng7 R8d3 Ra8 a7 Rg8 a6 Ne6 Bh5 Qdf1 Bd1 Rg6 Rb3 Kg7 Rdd3 Kg8 Bf4 Qhg4 Rd2 Nd7 Rdd3 Re8 a8R Rf8 Rd8 Nb8 a7 Be4 R8d4 Rf5 a8Q Qfe2 Qa2 Qef3 Qhg3 Qh3 Rd2 Qh8 R4d3 Qh7 Qh3 Qgg4 Rg1 h1Q Rg2 Qg1 Rh2 Nd7 Ka6 Nb8+ Ka7 Rff6 Re3 Rf5 Na1 Bb1 Nc2 Qd7 Rec3 Qh5 Rcd3 Qhh7 Qhg2 Qe8 Rh6 Qc8 Qh3 Qb7+
N2bbB1b/K4Q2/2rB2R1/2b5/N1PpBn1P/k3n1QN/1b1RP1RN/3r4 w - - 0 1 legal: proof: b4 h5 f4 e5 fxe5 b5 g4 Be7 gxh5 Bg5 a4 Rh7 axb5 Bh6 c4 Be3 b6 Rh8 b7 Bc5 b5 Bf8 d3 c5 Bg2 a5 Bh3 a4 Bf1 a3 b6 Ra5 Bh6 Rb5 Bc1 Qc7 cxb5 c4 Be3 c3 Bc1 Qc4 dxc4 Kd8 Qd3 Ke7 Qd1 Ke8 Kf2 Ke7 Ke3 f5 Kd4 d5 Kc5 g5 h4 f4 h6 f3 e6 g4 h7 d4 Bg2 c2 Bh6 c1B Nd2 a2 Nf1 f2 Nh3 g3 Be4 g2 Nh2 g1B Qf1 Be3 Rd1 a1B Rd2 Nc6 b8B Bb2 b7 Nf6 Kb6 Nd8 Ka7 Bd7 b6 Rg8 h8R Rg6 Rg8 Bg5 Be5 Nd5 b8Q Bc6 b7 Ne3 Qc7+ Bd7 b8N Bg7 Bf4 Bh8 Na6 Bgf6 Qe1 f1R Qg3 Rd1 Nc5 Bf2 Bg7 Be1 Na4 Bg5 Rg1 Rf6 Rc2 Bb4 Rd2 B4a3 Rg2 Bc5+ Qb6 Rg6 Bh6 Be8 Bd6+ Kf6 e7 Ne6 Bf8 Nf4 Rg7 Ke6 Rg8 Rf6 Rg6 Kd7 Be5 Rc6 Bd6 Bf7 e8N Bd8 Nc7 Be8 Na8 Rc7+ Bb7 Bca3 Qa5 Rc8 Be4 Rc6 Be5 Bae7 Bf6 Kd6 Qb5 Bf7 Qb7 Be8 Nc3 Kc5 Be5 Bd6 Qf7 Kb4 Na4 B6e7 Bb8 Ka3 Bc7 Bb4 Bcd6 Bc5+
RN4B1/B1Q1P2b/bN2QQ1b/K4rp1/RP2nR2/2Rn2NP/n6n/k6r w - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 b5 cxd5 b4 a3 Bg4 axb4 Bc8 g4 a5 b3 h5 gxh5 a4 Bg2 a3 Bh3 Qd7 Bf1 Qa4 bxa4 Bf5 Kf2 Bh3 Ke1 Bc8 e4 Ke7 d4 g5 Kd2 f5 Kc3 c5 h6 c4 h7 a2 a5 f4 e6 Kd6 h3 f3 e5+ Ke7 a6 f2 d6+ Kd8 d7 Ke7 d8R Nd7 d5 Rb8 a7 Bh6 a8R Bg7 Rf8 Ba6 Nd2 Bc8 Qc2 Ndf6 Ne2 Nh6 Ng3 Rb5 Be2 Rg8 h8Q f1B Bd3 Bd7 Bh7 Nhg4 Rfc8 Rd8 Bg8 Be2 Rf1 Bh6 Rf4 Nh2 Kd4 c3 Nc4 Ne4 Be3 Rc5 Nb6 Ba6 Bf2 Rb5 Kc4 Rf8 Qc1 c2 Kb3 Rf5 Ka4 Rc5+ Rc6 Rc3 Ka5 Re3 Bg1 Re1 Rc3 Be8 Bd4 Bg6 Bg1 Bh7 Be3 Rh1 Bf2 Bc8 d6+ Ke8 d7+ Ke7 d8N Ba6 Rb1 a1N Qf6+ Ke8 e7 Nb3+ Ka4 Nbc5+ Ka5 Nd3 Ra1 Bc8 Ra4 Ba6 Qf1 c1N Nc6+ Bc8 Nb8 Na2 Qc1 Ba6 Nc8 Ne1 Ba7 Nd3 Nc6 Kd7 e8Q+ Kc7 Nb6 Kb7 Rc5 Kc7 e6 Kd6 Nb8 Rd5 Qfg6 Ke5 e7 Kd4 Qef7 Re5 Qge6 Rf5 Qc2 Ke3 Qcc4 Kd2 Qff6 Kd1 Qee5 Kd2 Qce6 Kd1 Rc3 Kd2 Rca3 Kc2 Rc3+ Kb1 Qc5 Ka1 Qce5 Ndc5 Qc7 Nd3+
rr3Q2/6R1/B4Q1K/PP2r1n1/1nq1q2N/1PnR1BNk/2B3Rp/Bq1N4 w - - 0 1 illegal: No proof kernel
q1B4N/4Nq2/p2P2Pn/k1n1K2Q/1b1q1Rr1/P1R2B2/1B2B1q1/1Rq1Q1N1 w - - 0 1 legal: proof: c4 c5 f4 b5 b4 g5 bxc5 e5 fxe5 f5 g4 d5 cxd6 a6 c5 f4 c6 Bf5 gxf5 g4 h3 g3 Qb3 Ra7 Qc2 Rg7 Qd1 Rg4 hxg4 Qc8 Rh4 Qd7 Rh1 Qd8 d4 h5 Kd2 h4 Kd3 g2 Ke4 h3 d5 b4 g5 f3 f6 f2 g6 b3 a3 b2 e6 h2 e7 Bh6 c7 Kd7 e8Q+ Kc8 f7 Kb7 f8R Kb6 c8B Nf6+ Ke5 Nh5 e4 Nf6 d7 Ng8 d6 Qh4 d8N Nf6 Be2 f1Q Nc3 b1Q Nf7 Bg5 Nd5+ Ka5 Bb2 Bd2 Ne7 Qc1 Rb1 Bb4 Bf3 Rh6 Nh8 Ng8 Rf4 Qhf2 Qe1 Rh4 Qd7 Qd3 Qh3 Rg4 Qh5 Nh6 Be2 Qc6 Rc1 Qa8 Rc3 Qdd4+ Ke6+ Rg5 e5 Nd7 Bf3 Nc5+ Kf6 Qc4 e6 Rg4 Ke5 Qc2 Nd5 Qd2 e7 Qc1 e8B Qa2 Ne7 Qf7 Ne2 g1Q Bb5 Qf2 Ng1 Qfd2 Bbe2 Qdd1 Nh3 Qd3 Rf1 h1Q Ng1 Qg2 Qf2 Qcd2 Rb1 Qc1 Qe1 Qd4+
nB2N2Q/bRnPn2q/n1N1k3/1n2N3/R2P1qR1/5pN1/KQ1r1P1B/1B6 w - - 0 1 legal: proof: b4 a5 g4 f5 e4 g5 a4 c5 bxc5 b5 axb5 d5 exd5 f4 h3 Bf5 gxf5 g4 Ke2 g3 Ke1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qc8 Rh4 Qc7 Rh1 Qd8 c4 Kd7 d4 h5 Kd2 e5 Kc2 e4 Kb3 a4+ Ka2 f3 d6 h4 c6+ Ke8 c5 Kf7 b6 e3 f6 a3 d7 e2 g5 e1N g6+ Ke6 b7 g2 g7 h3 f7 h2 c7 Qh4 c8N Nh6 g8R Na6 b8B Nc7 c6 Nf5 Nd6 Nc2 Qd2 Nce3 Rg4 Ned5 Ne8 Nfe7 Qb2 Na8 Nd2 Ndc7 Ne2 g1N Ng3 Ne2 Nc4 Rh7 Rg1 h1Q Ne5 Q4h2 Bf4 Nc3+ Kb3 a2 Bd3 Rh4 Bb1 N3b5 Rc1 Rh3 Rc4 Rh8 Ra4 Qh7 Ra7 Qc1 Rb7 Qd2 Nh1 Rg8 Bh2 Qf4 Ng3 Rg5 Nc4 Rc5 Ne5 Bh6 f8Q Rc2 Qh8 Bf8 Ng6 Rd2 Ne5 Ng6 Nd3 Bc5 Ne5 Nd5 c7 Nge7 c8N Ndc7 Na7 Bb6 Be4 Bc5 Nac6 Ba7 Rd1 a1N+ Ka2 Nb3 Bb1 Nc5 Rc1 Rd3 Rc4 N5a6 Ra4 Rd2
7k/1Bq1q1N1/B7/2Q1B1RP/1Kq1Qpn1/nN1PNNPR/2r2b2/nR3n2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 fxe5 d5 axb5 h4 c4 Be6 cxd5 Bf5 Nh3 g5 Rg1 a5 Rg3 Bg6 Rc3 Bh5 gxh5 g4 Ng1 g3 Re3 g2 Rh3 Ra6 Nf3 Rg6 Ng1 Rg3 hxg3 Qg5 Rh1 Qd8 b4 c5 e4 f5 e6 a4 b6 c4 b5 a3 b7 c3 d6 a2 b6 h3 e7 Kf7 e8N c2 d7 f4 e5 h2 e6+ Ke7 Qe2 Qc7 d8N Qc4 Nf3 g1N Nf6 Qd3 Nd5+ Ke8 e7 Qh7 Ne3 Qf5 Bb2 Qh7 Be5 Nh6 Ne6 Kf7 e8B+ Kg8 Ng7 Ng4 Bc6 Na6 b8Q Nb4 Qc7 Bc5 b7 Qe4 Qg2 Qc4 b8R+ Kh7 Qb6 Rc8 Bb7 Kh8 Qc7 Bb6 Qc5 Ba7 Ra8 Bb6 Ra5 c1Q+ Nd1 Q1c3 Ne3 Nc2+ Kd1 Na3 Be2 Qe4 Bea6 Qcc4 d3 Qc6 Ke1 Qc7 Nbd2 Ba7 Rc1 a1N Rb1 Bb6 Nb3 Qe7 Ng5 Nf3+ Kd1 Nd2 Qe4 Nf1 Nf3 Qcf7 Kc1 Qc4+ Kb2 Ba7 Qb5 Qcc7 Qc5 Bb6 Kc3 Ba7 Rg1 h1Q Kb4 Qg2 Rh1 Qc2 Qd6 Bd4 Rh3 Q2c6 Qc5 Qce6 Ng2 Bf2 Ne3 Q6f7 Rb5 Qg8 Rb6 Qgf7 Rg6 Qd5 Rg5 Qde6 Kc3 Qc4+ Kb2 Qcf7 Kc3 Qb8 Kb4 Rc6 Qd6 Rc2 Qc5 Qbc7 Nd5 Qg8 Ne3 Qc4+
5K2/Q2R1R1B/P2RQ3/r1rPrbR1/Pq2r1pN/1k3b1B/1N3b1B/Q1r5 w - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Bd7 f6 Ra5 f5 Bc8 f7+ Kd7 bxa3 Kd6 a4 Ra8 a5 Kd7 g5 e6 h3 Na6 h4 Nc5 Be2 Ne4 Bf1 Ngf6 gxf6 g5 Rh3 g4 Rh1 Ng5 hxg5 Qe7 Bc4 Qe8 Bf1 Qd8 Ke2 Kd6 Ke3 Kc5 Kf4 Kb4 Ke5 c5 d4 h5 a4 b5 d6 c4 a6 h4 g6 h3 g7 c3 g8B c2 d7 h2 Na3 Bg7 Kd6 e5 f8R e4 f7 e3 f6 e2 Bh3 e1R Bf4 c1R Bh7 Bb7 Nf3 Kc3 Nc4 b4 Nh4 b3 Nb2 Qc8 d8R Re4 Rd7 Re1 d5 Qc4 Rfd8 Re5 f8Q Bc8 Qf7 Rhe8 Qe6 Bh6 Bg3 Be3 f7 Bf2 f8Q Qd4 Re1 h1B Qff7 Bf3 Bh2 Ra7 Re4 Rc7 Rf4 Re7 Rf5 Rc5 Rg5 Kb4 Qg7 Ra5 Qg1 Rcc5 Rf1 Ka3 Qgf6 Qb4 Qh8 Rf7 Qg7 Rf4 Ke7 Rfe4 Kf8 Ka2 Rd6 Ka3 Qa7 Ka2 Qh6 Bf5 Qe6 Ka3 R8d7 Ka2 Nd3 b2 Qh1 b1R Nb2 Rbc1 Qg1 Bd4 Rf2 Kb3 Qf1 Be2 Rf4 Bf3 Qg1 Bg6 Rff7 Bf5 Qh1 Bf2 Qd1+ R1c2 Qa1 Rc1
nQQB4/1p1R1PB1/b2r4/R1N3P1/1N3rk1/2RPn1r1/2Knn3/1B1nRQ2 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 g5 h4 Bh6 f5 Qf8 f6 Qg7 Ke2 Qg6 Ke1 Qf5 gxf5 g4 Nf3 Be3 Ng1 Bg5 hxg5 Ra7 Rh2 Ra6 Rh1 Ra8 f8Q h5 a4 e5 f7 c5 f6 e4 d6 Ke6 d7 Kf5 d8B c4 a6 g3 a5 c3 a7 g2 a6 c2 Ke2 h4 Nf3 g1R Rh3 e3 Kd3 e2 Nd4+ Kg4 Bb2 c1N+ Kc2 Rh6 Nb3 Nd7 Na3 Nb6 Rc3 h3 Nc5 h2 Qe8 h1N f8Q Be6 f7 Rc8 a8R Ne7 a7 Bc4 Rb8 Rg3 a8R Rf6 Ra5 Rf4 Bg2 Bb5 Be4 Rc6 Qf1 Ba6 Rc8 Rg6 Rc7 Rd6 Rd7 Na8 Bd3 Nf2 Rb1 Nb3 Re1 Nc1 Qh8 Nd5 Qee5 Rb6 Qb8 Nd1 Qc8 Rd6 Qe5 Rg6 Qeb8 Re6 Nb5 Rg6 Nd4 Rd6 Nc6 N5e3+ Kb1 Rff3 Nb4 Rf2 Bc2 Rf4 d3 Nf2 Rd1 e1N Ba1 Nf3 Re1 Nd2+ Kb2 Nd5 Bb1 Ne2 Kc2 Nd1 Rca3 Rf2 Bg7 Rf4 Rc3 N5e3+
3k1K2/1qnPR3/q1BprQ1r/4BqQn/N1n3R1/1Bn2P1Q/B2P4/1N2N3 w - - 0 1 legal: proof: e4 a5 a4 f5 exf5 b5 axb5 g5 b4 Na6 h4 Nb8 hxg5 Ba6 Rh3 Bb7 Rh1 Bc8 c4 d6 c5 a4 c6 Bd7 cxd7+ Kf7 Rh3 Bg7 Rh1 Bd4 Qf3 Bb6 Qd1 Ba5 bxa5 Kf8 Ba3 Kg7 Bc1 Kf7 Ra3 h5 Ke2 e5 Kd3 Ke7 Ke4 c5 Kd5 c4 g4 h4 g6 h3 g5 e4 f6+ Kf8 Ke6 h2 b6 e3 b7 e2 a6 e1N a7 c3 f7 c2 Qf3 Nf6 Qh3 Ng4 Bc4 Nf6 Bb2 c1Q Re3 a3 Nf3 a2 Rg1 h1N Rg4 Nc6 b8N a1Q Na6 Rh5 Nc5 Qa6 Na4 Qc2 Ba2 Nd3 Ne1 Ncb4 f3 Nbd5 Bd4 Rc8 a8B Nc3 Bc6 Ng3 Re2 Qc7 Re5 Kg7 Ke7 Nb2 Re6 Qcb7 Be5 Rf8 Bb3 Nc4 Ba2 Rg8 f8Q+ Kh8 Qd8 Rh6 g7+ Kh7 Bb3 Kg6 Ba2 Kf5 g6 Ngh5 Kf7 Re8 g8Q Re7+ Kf8 Ne8 g7 Nc7 Qh8 Nb6 g8B Qe4 Reg6 Qc2 Bgb3 Nc4 R6g5+ Ke6 Rg7 Qf5+ Kg8 Rf7 Qg5 Rff6 Rh7 Ng3 Kg7 Ke7 Kg8+ Kd8 Re7 Re6 Qhf6 Nh5 Kf7 Qc8 Kf8 Qcb7
5N1k/N6p/3NRpn1/nbQ2QP1/2P5/P1R4B/Q1RbQ1nB/1qbK2r1 w - - 0 1 legal: proof: f4 a5 b4 e5 fxe5 c5 bxa5 c4 g4 c3 g5 f6 g6 Qb6 dxc3 Nh6 c4 Ng8 c5 Qd8 h4 b5 Rh2 Qe7 Bb2 Qf7 gxf7+ Ke7 Ba3 g5 Rh1 g4 Bc1 Nh6 Qd3 Rg8 Qd4 Rg5 hxg5 Ng8 Qd1 Na6 Qd5 Bb7 Bg2 Bg7 Rh2 Nh6 Qd1 Rh8 Kf1 Bf8 Ke1 Bc8 Rh1 Ng8 Bf1 Nb8 c4 d5 e4 g3 e6 b4 e5 b3 a6 d4 c6 b2 a7 d3 a8Q g2 c7 Bh6 f8N Bd7 c8Q Nc6 Qc2 d2+ Kd1 Nb4 Nc3 b1Q Nh3 g1B Qf5 Na6 Rh2 Qb8 Nb5 Nb4 Nf2 Nc6 Na7 Na5 Bh3 Qb1 Ne4 Be3 Nd6 Bb5 Qc5 Bg7 a3 Bf4 Qg2 Be3 Ke2 d1N Ra2 Bf4 Rc2 Ne3 Rc3 Bh6 Qf2 Ng2 Kd1 Be3 Qa2 Bg7 Ke2 Bd2 Bb2 Bc1 Kd1 Bh6 Ndc8+ Ke8 e7 Kf7 e8Q+ Kg7 e6 Ne7 Nd6 Ng6 e7 Rg8 Ba1 Kh8 Bb2 N6h4 Qh5 Ng6 e8R Rg7 Ree3 Re7 Qe2 Re4 Ba1 Rg4 Re6 Bg7 Rc2 Rg3 Be5 Bh6 Rh1 Rg4 Bh2 Bg7 Nd7 Bf8 Rf1 Be7 Nf8 Bd8 Rf3 Bc7 Ne8 B7f4 Rfc3 Bfd2 Nd6 N2f4 Qf1 Rg1 Qe1 Ng2 Qef1 Ne1 Qe2 Ng2+
RbQ3BQ/3pN1nn/3bBR2/Pq1B2NP/3Q1r1n/2Pp4/7k/B1b2K1N w - - 0 1 illegal: Other
2B1B1nB/2k1q3/nRbr1p1P/2r1Q1QR/4PNNp/5nN1/4P1R1/K1B1q3 w - - 0 1 legal: proof: c4 b5 h4 h5 g4 g5 hxg5 d5 cxd5 e5 a4 e4 axb5 e3 fxe3 Bh6 gxh6 Kf8 e4 Rh7 g5 Rh8 g6 Ke8 d4 Kd7 Kd2 c5 Kc2 a5 b4 a4 Kb2 c4 g7 Ra5 b6 Qh4 b7 Qe1 b5 Ra8 b6 Nc6 b8Q Qh4 b7 Qe1 d6 Nf6 g8B Nh7 d5 Na7 Qd2 Qd1 Qg5 Nc6 Nd2 Qe1 Ngf3 Ra6 Nh2 Ra5 Ng4 Nd4 Bh3 Rc5 Nf1 Nf6 Ng3 a3+ Kb1 Kd8 d7 c3 Qbe5 Nf3 b8R c2+ Ka2 Rh7 Rb6 Bb7 Rg1 h4 Rg2 Rh8 Rab1 Ba8 Ka1 a2 R1b5 Bc6 Bh7 Re8 Bg6 Re6 Ra5 Rd6 Bh5 Kc7 d8N Ng8 Ne6+ Kc8 Nf4 Kd7 Ne3+ Kc7 Bc8 Qb4 Ng4 Qa3 Bd2 c1N Rab5 Nd3 Bc1 Nb4 Ra5 Nf6 Bg6 Kd8 Bh5 Na6 Bg6 Re6 d6 Qb4 d7 Rd6 Bb7 Kc7 d8B+ Kb8 Rab5 Ng8 Bf6 Kc7 Bh8 f6 Ra5 Qb3 Be8 Qf7 Rab5 Qe7 Bc8 Nd2 Qc3 Kd8 Ba3 Bd5 Qh5 Rcc6 Kb2 Kc7 Ra5 Rc4 Qg6 Bb7 Rh5 Nf3 Qg5 Rc5 Qce5 a1Q+ Kb3 Qd4 Ka2 Qf2 Ka1 Bc6 Bc1 Qe1
3qQ1N1/kqR2p2/1r2Q3/3QNP1n/P1p3n1/1P1N3R/K4bB1/QBrn2B1 w - - 0 1 legal: proof: c4 b5 cxb5 a5 d4 a4 b3 Ra5 bxa4 Ra8 g4 h5 gxh5 e5 dxe5 Bb7 Qc2 Bd5 Qd1 Bb3 axb3 Qf6 Qd5 Qh4 Qd1 Qd8 Kd2 d5 Kc3 Kd7 Kb2 Kc8 e4 Kb7 f4 c5 h4 g5 b6 d4 h6 d3 f5 g4 e6 g3 e7 d2 e8B g2 h5 Qh4 h7 Be7 h6 Qf6+ e5 Bd8 Ne2 g1N Rh3 Ne7 Nbc3 Qg5 e6 Nd5 e7 Qg7 Bc6+ Ka6 e8Q Bf6 b7 Ne3 Ka2 Rf8 h8Q Kb6 h7 Qg6 Be4 Qh5 Qe6+ Ka7 Nd5 Ng4 Ne7 Nd7 b8N Bh4 Bfg2 Bf2 Nf4 Ndf6 Ng8 Ne2 Nd3 Rc8 Nd7 Rab8 N7e5 Rb6 Ba3 Qh4 Rc1 Nh5 Qg7 Rc7 h8Q Qe7 Qf8 Rcc6 Qe8 Qb7 Bb2 Rc8 Bd4 Rc7 Qh1 d1Q Qhf6 Rcc6 Qd5 Rc8 Qfe6 Qd2+ Rc2 Qa5 Qa1 Nc3+ Kb2 Nd1+ Ka2 Bh4 Bg1 Bf2 Rc4 Qd2+ Nb2 Qg5 Bb1 Qd8 Nbd3 Rc7 Rb4 c4 Rb5 Re7 Rc5 Rd7 Qdc6 Rd4 Qcd5 Re4 Rc7 Re3 Nc5 Rc3 Ncd3 Rc1
6Bk/2R1PB1p/4q3/qQ1rP1QN/p2RN1bP/B1Q2qN1/3rQ2b/1n3K2 w - - 0 1 legal: proof: d4 c5 a4 a5 f4 g5 fxg5 b5 axb5 e5 dxe5 Bg7 b4 Na6 bxc5 Bh6 bxa6 Bf8 e4 d5 g4 f5 c4 Kf7 h4 Kg7 e6 d4 g6 a4 e5 d3 a7 f4 e7 f3 c6 Qd6 c5 Bd7 c7 Be8 c8Q Bc6 g5 Qd4 Qa6 Qe4+ Qe2 Rc8 a8Q Qf4 Qb5 Qf5 Ba3 Rd8 Nd2 Be8 c6 Qh3 c7 Rd7 c8Q Qe6 Rd1 Rd5 Ne4 Nf6 Qc3 d2+ Kf2 Kg8 g7 Bd7 Qe8 Bc8 Qh5 Bd7 Rc1 d1Q Bg2 Qd4+ Kf1 f2 Rh3 Qa7 Rd3 Qa5 Rd4 Qeb6 Bh3 Bg4 Qg6 Qe6 Qf5 Kf7 g8N Bh6 g6+ Kg7 Rc2 Bd2 Qg5 Bf4 Bg2 Bh2 Bh1 Nh5 Ngf6 Rhd8 Bg2 Nf4 Nh5+ Kh8 g7+ Kg8 Qee3 R8d7 Ne2 Rd8 N2g3 Ne2 Qc7 Nc3 Qee2 Nb1 Qc3 Rf8 Qce1 Rf3 Rc7 Rd3 Qc3 Rd2 Qge3 Kf7 g8B+ Kg6 Nf4+ Kg7 Nfh5+ Kh8 Qf4 Bh3 Qg5 Bg4 Bh3 Bf3 Bf5 Bg4 Bg6 Qf5 Kg2 Qe6 B6f7 Bf5 Kf3 f1Q+ Ke3 Qh1 Kf2 Qf3+ Ke1 Qd3 Kf2 Bg4 Kf1 Qf3+
2Q1n2B/1rPP1nQQ/5N1R/1N1q2Kp/q1b5/N3Q1pk/2rB3P/1BR2n2 w - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 d5 axb5 e5 f4 f5 fxe5 f4 e4 f3 exd5 Be7 g3 Bf6 Ba3 Bg5 Bc1 Bf4 gxf4 Bf5 Na3 Bg4 Nb1 Bc8 Kf2 Kd7 Kg3 g5 Kg4 a5 d4 a4 c4 h6 f5 f2 d6 a3 d5 a2 c6+ Ke8 e6 Qc7 b6 Ne7 c5 Qd7 c7 Ba6 c8Q+ Qd8 f6 Nbc6 d7+ Kf8 b7 Na5 b8N Bc4 f7 Kg7 f8Q+ Kg6 c6 Ra7 c7 Be2+ Nf3 Qe8 d8B Nac6 d6 Nf5 e7 Ng7 Qc2+ Bd3 Bd2 Rb7 Nd7 Rg8 Na3 Qf7 Nf6 Qd5 d7 Ne8 Nd4 Rg7 Bh3 f1N Ndb5 Rg8 Rc1 a1Q Rg1 Rg7 Qh8 Rf7 Qb2 Bc4 Rg3 Qa2 Re3 Qb3 Re6 Qa4 Qc3 Nb4 Bg2 Nd3 Bf3 Rg7 Bd1 Rf7 Bc2 Rg7 Bb1 h5+ Kh3 Kf5 Qh7+ Rg6 Qd4 g4+ Kh4 g3 Qe3 Qg2 Qeh6 Qd5 Q6g7 Ne3 Ra6 Kf4 Rd6 Ne5 Re6 Kf3 Rd6 Rh6 Kg5 Kg2 Ra6 Kh3 Rc6 Nd6 e8Q Nf1 Qee7 Ne8 Qc5 Qd3 Qe3 Qd4 Be7 Qd5 Beb4 Qd6 Bbc3 Qd5 Ng4 Re6 Ra6 Re7 Rh6 Rf7 Bd4 Rf2 Nf6 Rg2 Be1 Ra2 Bd2 Rc2 Ne4 Ra2 Qf8 Rc2 Bb2 Nc6+ Be5 Qd3 Bh8 Ne5 Qfg7 Qd5 Nf6 Nf7+
3N3K/1PPrn2Q/2R1B3/4BQ2/1N1b2B1/Q1np2p1/R1rk1qPN/2qBn3 w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 a5 bxa5 g5 d4 c5 dxc5 g4 e4 g3 exf5 Bb7 h3 Bd5 Ra3 Bf3 Ra1 Bg4 hxg4 Bh6 Rh4 Bg7 Rh1 Bf8 Kd2 Kf7 Ke3 Kf6 Kd4 d5 f4 h5 c4 e6 a6 h4 g5+ Kf7 Ke5 h3 g6+ Kg7 a7 Kh6 f6 d4 g7 d3 f7 h2 f5+ Qg5 c6 Ba3 f8Q Qd2 c5 Kg5 b6 Na6 c7 Rb8 c8B Ne7 g8B Rb7 a8Q Nb4 f6 Nbd5 f7 Nf6 c6 Rh4 c7 Rb4 Bb2 Ne4 Ra2 Rc4 Nf3+ Kg4 Nc3 Nc5 Kf6 Kf4 Kg7 Ke3 Nd5+ Ke4 Be2 e5 Kh8 Rc2 Nb4 Ke3 Bg4 e4 Be5 Rb8 b7 Bb2 Qa3 Rd8 Qe1 Bd4 Bd1+ Qe2 Rf1 h1Q+ Nh2 Rd5 Rf6 Rd7 Rc6 Na4 Qc8 Qf1 f8N Nc3 Ne6 Qh1 Qg1+ Kd2 Nd8 e3 B8e6 Qf2 Qf1 e2 Qb8 Qfg1 Qf5 e1N Qh7 Qf2 Qba7 Ng8 Qc5 Qhf1 Qf8 Ne7 Qff5 Nf3 Be2 Qc1 Bd1 Ne1
4N3/5pB1/np2nRPQ/1Bn1r2Q/2R2Qb1/1N2B2b/P1NB1P2/3brk1K w - - 0 1 legal: proof: h4 a5 d4 g5 hxg5 d5 b4 c5 dxc5 d4 bxa5 d3 e3 Bg7 a6 Bd4 exd4 b6 Be2 Qd7 Bf1 Qb7 axb7 Ra7 Nh3 Ra5 Ng1 Ra8 c4 Kd7 g4 Kc6 d5+ Kc7 c6 Kd6 g6 Ke5 g7 Kd4 g5 e5 c7 h5 c5 h4 c6 e4 d6 h3 d7 e3 d8B e2 Be3+ Ke4 Nf3 h2 Bf6 Ra7 Na3 Bd7 c8N Bh3 c7 Na6 b8B Be6 Nd6+ Kd5 c8Q Rh4 Rc1 Rh6 Nd2 Bg4 Ne8 Re7 Nb3 Ke4 Bbf4 Kf3 Nc2 Rh5 Qc7 Nh6 g8Q Nf5 Qh8 Nd4 Bg7 Ne6 Qh6 Bh3 Rg1 h1B g6 Rg5 Rg4 Re5 Rg5 Bg4 Rf5 Bg2 Rf6 B2h3 Qc5 Rf5 Qd2 Re5 Qdb4 Re4 Qch5 Re5 Kd2 e1N Kd1 d2 Bb5 Rc5 Bg5+ Rf5 Qf4+ Kg2+ Qf3+ Kg1 Ke2 Rc5 Bgf4 Re5 Bg5 Bf5 Qf4 Kg2 Nca1 Nd3 Rc4 Ndc5 Nc2 Kg1 Kf3 d1B+ Kg3 Kf1 Kh2 Bfg4 Kh1 Nd8 Bd2 Re1 Qb8 R7e4 Bge3 Nde6 Qbf4 Re5
3N2BR/1Q2pPr1/1KnPbRB1/B2Q1B2/1Np2k2/rrb5/2N1Q1P1/n2b4 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 hxg5 f4 c4 Bg7 cxd5 Bf8 f3 a5 Rh5 Qd7 Rh1 Qg4 fxg4 Ra6 Nf3 Rf6 Ng1 Rf5 exf5 Be6 Ne2 Bd7 Ng1 Bc8 Ke2 Kf7 Kd3 h5 Kd4 c6 Kc5 a4 b4 f3 d4 h4 d6 f2 d7 h3 d8N+ Kg7 d5 a3 g6 Kf6 g7 Ke5 b6 h2 f6 a2 g5 Ba6 g6 Rh6 f7 Ke4 b5 Rh7 d6 Rh3 b7 Rf3 b6 Nh6 g8B Bb5 g7 Ng4 Bh7+ Ke5 g8B Re3 Qe2 Ba4 Nh3 Bb5 Bd2 Bc4 Nf4 Be6 Nd5 Bg7 Nb4 Kf4 Na3 Bc3 Rb1 a1R Bg6 Ra2 Nac2 Ra3 Be1 Rh3 Rd1 Rh7 Rd3 Rg7 Rf3+ Kg5 Rf6 Ne3 Qd2 Kg4 Bfd3 f1B Bdf5+ Kf4 Qd5 Be2 Na2 Be5 Ba5 Bc3 Nab4 Rb3 Rb1 h1R Ra1 Rh3 Rh1 Rg3 Rh8 Bh5 Ne1 Rb2 Na6 Bg4 Qd2 Bd1 Qe2 Nc2 Nb4 Rb3 Rh7 Be5 Rh8 Na1 Nec2 Bc8 Kc4 c5 Kb5 c4 Kc5 Nc6 b8Q Rb2 b7 Be6 Qa8 Ra3 b8Q Bc3 Kb6 Na7 Qd5 Rbb3 Qbb7 Nc6
N1b1R2q/2QQ3B/kP1BpnQr/1n3P2/N3p1r1/P7/nKQ1N3/1nR3B1 w - - 0 1 illegal: Other
1N4R1/1Q3bp1/1BN1Pb2/3N1Bnb/3PbBp1/2rP2R1/QR6/b2kBqK1 w - - 0 1 illegal: Other
4nB2/1BR1n3/2PP2k1/n1Nq1Np1/1Q1N1pK1/1qP2q2/Rr5R/Q2N1rB1 w - - 0 1 legal: proof: d4 d5 g4 e5 a4 b5 axb5 h5 gxh5 c5 e3 e4 f3 Bb7 Ra3 Bd6 Ra6 Be5 dxc5 d4 Ra3 d3 Ra1 Bd4 exd4 e3 Be2 Bc6 Bf1 Be4 fxe4 Qd6 Ra5 Qe7 Ra1 Qd8 h4 a5 b4 f5 d5 Kf7 b6 g5 e5 a4 b5 d2+ Ke2 f4 Kf3 e2 e6+ Kg7 e7 e1N+ Kg4 a3 e8N+ Kh7 c6 a2 d6 Qc7 b7 Ra3 b6 Ng2 h6 Re3 h5 Re7 Ng7 Re1 Ba6 Qe7 Nf3 Re3 Nd4 Qe5 Nc3 Rd3 Rh2 Nh4 Ngf5 Nd7 b8N Rf3 b7 Nb6 Nd7 Rh3 b8Q Rd3 Bb7 Nc4 Nc5 Re3 Qg1 Rh3 Nd1 Rb3 c3 Ng6 Ba3 Qe4 Bb4 Qh1 Ba5 Rb2 Bb6 Na5 Qe1 N8e7 Qf1 Nf8 Qa6 Kg8 h7+ Kf7 h6 Ne6 Qaa8 Re8 h8B Ng7 h7 Kg6 Qa6 Qd5 Qf1 Ne6 Bg7 Nc7 h8R Qb3 R8h4 Rh8 Rh7 Ne8 Bf8 Qd5 Rc1 a1Q Rc2 Qaa2 Qe1 Qab3 Qh1 Ng8 Rc7 Ne7 Qf1 Rh3 Qa6 Rf3 Qaa7 Nc4 Qa1 Rf1 Ba7 Na5 Bb6 Rb1 Ra2 Rb2 Qa7 Nc4 Qa4 Na5 Qb4 Rf3 Nde3 d1Q Ba7 Qe2 Nd1 Rf1+ Nf3 Qee4 Ne6 Qdd3 Bg1 Qe5 N3d4 Qed5 Nc5 Q3f3+
3q1q1Q/pN2BP1N/r1Q5/Nb2PkP1/3b1q2/QN1rbp2/RR3BB1/7K w - - 0 1 legal: proof: c4 b5 h4 f5 e4 e5 a4 d5 cxd5 g5 hxg5 Nd7 axb5 Nc5 Rh6 Ne7 Rh1 f4 f3 Nf5 exf5 e4 Qc2 e3 Qd1 Ne4 fxe4 Qe7 Qb3 Qf6 Qd1 Qd8 g4 Ke7 d4 h5 b4 c5 b6 f3 b7 c4 b8N c3 d6+ Kf7 e5 c2 d7 e2 Kf2 h4 f6 Kg6 f7 h3 d5 h2 d6 Qf6 d8B Rg8 d7 Qd6 b5 Qe6 b6 Qe8 b7 Bh6 Be7 Bg7 d8N Qa4 Qd3+ Bf5 Qa3 Bf6 Ra2 Qc4 Nd2 Bd7 Nbc6 Bf5 b8Q Qd5 Qbd6 Rh8 Nh3 Rb8 Nb3 Rh6 Nb7 Bd7 Nca5 Bb5 Qc6 Qd8 Be3 c1Q Bg2 Qcd2 Kg3 e1B+ Bf2 Qf8 Rg1 Qdd8 Rh1 Bc3 Rb1 h1Q Rbb2 Qb1 Kh2 Qe4 Kg1 Bd4 Kh1 Kg7 g6 Bg5 N7c5 Bge3 Ncb7 Kh8 g7+ Kh7 g5 Rg6 Nf4 Rd6 Nh5 Kg6 g8Q+ Kf5 Qh8 Qf4 Nf6 Rd5 N7c5 Rb6 Ncb7 Ra6 Nh7 Rc5 Bf6 Rc3 Be7 Rd3
5nBQ/pN6/1R1Bb1q1/P2r1R1Q/1bPRq2R/2b2PBp/1k1K1Q2/2N4b w - - 0 1 illegal: No possible last move
R1Qbbnb1/1Qb3b1/N2BR1K1/4RP2/5pNP/4P1kB/6p1/1n2NBBq w - - 0 1 illegal: No possible last move
3r1k2/1r2RBNP/R1qP4/R2QPr2/N2b3r/K2Q3N/p1b1pBrN/6Q1 w - - 0 1 legal: proof: c4 h5 d4 b5 e4 d5 cxd5 Kd7 g4 b4 gxh5 b3 d6 Ke6 d7 Qe8 axb3 Qd8 b4 Kd6 b5 Ba6 Qd2 Bb7 Qd1 Bc8 d5 Ke5 d6 Na6 Nc3 Nb4 Nb1 Nd5 exd5 Kf6 f3 e5 Kd2 Kg5 Na3 Kh6 Ke2+ Kh7 Ke1 Nf6 Nb1 Kg8 f4 e4 Nd2 Ng4 Nb1 Ne5 fxe5 Rh7 Ne2 Rh6 Ng1 Rh8 Kd2 a5 Kc2 c5 Kb3 f5 h4 g5 b6 f4 h6 g4 h7+ Kg7 h5 e3 b7 a4+ Ka3 f3 b8N g3 b4 c4 h6+ Kf7 b5 f2 b6 g2 b7 c3 Nd2 c2 Nh3 g1R Bc4 f1R Na6 e2 b8R Qa5 d8N+ Ke8 Rb5 Bb7 Nc5 Rhg8 h8Q Qa6 d7+ Ke7 Nf3 Qf6 Ra5 Qh4 Nh2 Rb8 Be3 c1R Nde6 Rf5 Ng7 Qe4 Qh7 Rg2 d8Q+ Kf7 Ba2 Rc4 Qg1 Ba6 Qd6 Rb7 Bf2 Be7 Qd7 Rd8 d6 Qc6 Qe6+ Kf8 Qd5 Bg5 Qg6 Be3 h7 Rf6 Qgd3 Rf5 Rb1 Rcf4 Rb6 Bb5 Rba6 Bd4 Ra7 Rh4 R5a6 Rb6 Re7 Rb7 Kb4 a3 Qc1 Rf3 Q5e4 Rgg4 Bf7 Qc8 Qd5 Rf5 Qg5 Rg3 Ra1 Qc6 Qc1 Rg2 Qg1 Rhh5 Rb1 a2 Ka3 Ba4 Rb5 Bc2 Rba5 Rh6 Na4 Rh4
QQN1NNQ1/Kn2R3/3n1b2/3PbqBb/1kPp4/8/Bp1P3B/3R1nbN w - - 0 1 legal: proof: g4 a5 e4 d5 b4 h5 bxa5 g5 gxh5 e5 Nc3 d4 Nd5 b5 Nxc7+ Ke7 Ne6 Rh6 Nc7 Rd6 f3 Rd5 exd5 e4 f4 Kd7 Qe2 Ra6 Qf3 Re6 Qd1 Re5 fxe5 Be7 Nf3 Bc5 Ng1 Bf8 Ke2 f5 h4 f4 a4 b4 a6 e3 Kd3 e2 Kc4 e1B Kb5 g4 Kb6 f3 e6+ Kd6 a5 g3 a7 f2 a8N g2 a6 b3 e7 Bf5 e8N+ Ke5 a7 Bh6 Qg4 Nf6 Ne2 g1B Qg8 Bg6 Ba3 b2 Rd1 Bg7 h6 Bh5 h7 Bf7 h8B Bf8 h5 Ke4 h6 Na6 h7 Bg7 Ng3+ Ke5 Be7 Bh5 Bc4 f1N Ba2 Nb8 c4 Ne4 Bg5 Qc8 Ne6 Bf7 Nf8 Qf5 Rh5 Bg6 Nh1 Nd7+ Ka6 Nd6 Nb6 Bf6 a8Q Bg3 Ka7 Nc5 Nc8 Ncb7 Bg7 Bf7 h8Q Bf4 Rh7 Bh5 Qb8 Ke4 B7h6 Kd3 Re7 B4e5 Bf4 Kc2 Bh2 Bf7 Bg5 Bg6 Bb1+ Kb3 Ba2+ Kb4 Qa8 Kc5 Qh3 Bh5 Qg3 Kb4 Qb3+ Ka5 Qb6+ Ka4 Qc7 Ka3 Qcb8 Kb4
R1Rq3k/1Q1n4/2R3np/n4np1/2NNq3/1PPBb3/1BQ2QPK/2qR1N2 w - - 0 1 legal: proof: d4 a5 a4 c5 dxc5 g5 h4 b5 axb5 Ra6 h5 Rg6 hxg6 Qb6 Nc3 Qc7 Nb1 Qd8 e3 d6 e4 d5 Rh6 d4 Rh2 Bg4 Rh1 Bc8 Bd2 Bg7 Ra4 Nf6 Bc4 Qd6 Nf3 Kd7 Na3 Rd8 Bf1 Bf8 Ng1 Ke8 Bc1 Ng8 Nb1 Qc7 Ra3 Rd5 Ra1 Qd8 exd5 Bh3 Nf3 Bf5 Ng1 Bc8 f3 e5 Rh3 e4 Rh1 e3 Ra4 Bf5 Ra1 Be4 fxe4 Qc7 Qh5 Qd7 Qd1 Qd8 g7 f5 e5 Kf7 e6+ Kf6 d6 d3 e7 f4 e8N+ Kf7 c3 e2 Kf2 e1N d7 d2 c6 h6 b6 a4 c7 a3 c8R a2 b3 f3 Kg3 f2 b7 Na6 b8Q Nc5 Qc2 d1Q Bd3 Qg4+ Kh2 Nb7 Rc6 Ne7 g8R Na5 Qb7 Qe4 Ne2 Ng6 Nd2 Bc5 Bb2 Be3 Nd4 f1Q Rd1 a1N Nd6+ Kf6 Rf8+ Kg7 N6c4 Qg1+ Kg3 Kh7 Nf1 Nf3 Qf2 Nc2 Ra1 Qa8 Rfc8 Nfe5 d8Q+ Nd7 Kh3 Qb8 Qdf6 Qc7 Q6f5 Qd8 Kg3 Kh8 Ra2 Nb4 Qc2 Nd5 Qff2 Nde7 Ra1 Qg8 Rd1 Qf8 Rh4 Qh1 Rf4 Qg8 Rff8 Qg1 Ra8 Qh1 Rfc8 Qd8 Nfd2 Qe1 Nf1 Nf5+ Kh3 Qd2 Kh2 Qc1
1R1b3k/2Q3p1/1BbQn1Pq/2B5/1q3Q1b/QpPBr3/pP2K1R1/5RNN w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 c5 d4 a5 dxc5 b4 a4 Bb7 f4 Bd5 h4 Nf6 g5 Ng8 f6 Qb6 f5 Qb5 axb5 Kd8 f7 Ra6 Qg4 Bb7 Qd1 Bc8 Bf4 Rf6 Bc1 Na6 gxf6 Nc7 Qg4 Ne6 Qd1 Ng5 hxg5 Bb7 Bg2 Ba6 Bf1 Bc8 g6 d5 b6 e5 c3 h5 b7 h4 b8B d4 c6 h3 Bh6 b3 Kd2 d3 Qc2 h2 Ke3 e4 Bd6 a4 Nd2 a3 Qd1 a2 Bc5 Be7 c7+ Kd7 f8R Bb7 f7 Bc6 f6 Bd8 Qf3 Ne7 Qf4 Nd5+ Kf2 Ke6 Rg8 Rh7 f8Q e3+ Ke1 e2 f7 Rh8 Ne4 d2+ Kf2 d1Q Ng3 Qd2 Rd1 Qc2 Rd2 e1B+ Ke2 Rh7 Bg5 Rh3 Bge7 Qf5 Bb6 Qf6 Rc2 Qd4 Bec5 Qb4 c8Q+ Bd7 Qg5 Nc7 Qf4 Bf2 Qb8 Bc6 Qa7 Kd7 Qa5 Ne6 Q8d6+ Kc8 f8Q Be1 Nf5 Bh4 Qa3 Rd3 Ng3 Rf3 Qb8+ Kd7 Q8f6 Nf8 Qbc7+ Ke8 Q6d6 Rd3 Nh3 Rf3 Rg1 h1Q Rc1 Qh2+ Rg2 Qh1 Ng1 Re3+ Kd2 Qh2 Bd3 Qh3 Rf1 Qh1 Rh8 Qh3 Rh5 Ne6 Nh1 Qh2 Qc4 Qf4 Rf5 Qg5 Qcf4 Qh6 Rf7 Bdf6 Re7+ Kf8 Kd1 Kg8 Re8+ Nf8 Rb8 Bd8 Kd2 Kh8 Kd1 Ne6 Kd2 Rg3 Ke2 Re3+
K1QB2Nr/1P2r1Q1/1NB2Np1/p3P1Pp/2q1RN2/4n1r1/1b1k4/RR2q2B w - - 0 1 legal: proof: b4 a5 f4 b5 a4 e5 axb5 d5 fxe5 g6 h4 d4 h5 d3 h6 Bh3 b6 Bc8 b5 Ba6 bxa6 Nc6 cxd3 Nce7 d4 Nf5 d5 Ng7 hxg7 Be7 Nc3 Bc5 Nb1 Bf8 Kf2 Ke7 Ke3 c5 Ke4 h5 g4 c4 d4 f6 d6+ Ke6 d5+ Kf7 d7 c3 d6 Ke6 a7 c2 Nh3 Qe8 d8Q Qe7 d7 Qc5 Na3 Qe7 Nc4 Qe8 Bg5 c1Q Qc8 Qa3 d8R+ Qd7 Bg2 Bb4 Re8+ Ne7 g8N Qb2 Qd4 Ba3 Rhb1 Qb5 Bh1 Rb8 a8B Bb2 Bc6 Rb7 e3 Rc7 b7 Qc5 Nb6 f5+ Kd3 f4 e4 f3 Nf4+ Kf7 Bf6 f2 g5 Nf5 Bd8 f1R Re6 Qce7 Kc4 Ne3+ Kb5 Rg1 Ka6 Rg3 Ka7 Qd5 Ka8 Qb4 Re8 Qe1 Qc3 Re7 Qd4 Qb3 Qdd7 Qc4 e6+ Kg7 Qdc7 Rd7 e7 Kf7 Nd3 Ke6 Qe5+ Kf7 Qg7+ Ke6 Nf4+ Kd6 e5+ Kc5 Rf8 Kd4 e8N Kc3 Nef6 Re7 Rf7 Rc7 Rd7 Kc2 Rd4 Re7 Re4 Kd2
3Q2N1/Bb1B2pr/RB2Q3/2Q3P1/P4r2/K1Nk1r1p/PqR3pb/1B4Nq w - - 0 1 illegal: Other
2q3Q1/3Ppqr1/Nk1bB3/N6Q/b1p1RPB1/1rN3KB/2RR1Pp1/B5q1 w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 g5 bxa5 f5 g4 f4 e3 Nf6 exf4 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Ba3 Ne4 Bc1 Ng5 hxg5 Ra7 Ba3 Ra6 Bc1 Ra8 d4 Kd7 a4 c5 d6 Kc6 d5+ Kd7 f6 b5 a6 h5 f7 b4 a7 c4 a5 h4 a6 g3 g6 h3 g7 b3 g8B h2 Ke2 b2 Kf3 Qb6 Ra2 Rh7 Nc3 b1Q Rc2 Qa1 Bb2 Qc1 Bh3+ Kd8 d7 Kc7 d8R g2 d6+ Kc6 Ba1 Bf5 Kg3 Bh6 f8Q Be6 Nge2 Rf7 Re1 h1Q Nd4+ Kc5 Nc6 Qbb1 Na5 Qb8 Qh5+ Kb6 Re4 Qc8 Rd7 Rb8 a8B Qhg1 a7 Qce1 Bb7 Bg7 a8N+ Ka7 Rd8 Be5 Nc7 Bd7 Na6 Kb6 Ba8 Rh7 Bge6 Ba4 Qg8 Rg7+ Beg4 Qd2 Bd5 Rb7 Be6 Qd5 d7 Rb8 Rf8 Rb7 Rf6 Bd6 Rg6 Qf5 Rg5 Qf7 Rd5 Ka7 Rd1 Rb3 Rdd2 Kb6
5R2/5K1b/1N1np2R/p3BB1r/1QPpP3/1r1RNQ2/k1Pbp3/2bB1Q1B w - - 0 1 illegal: Other
kr3R2/q6P/R1p2p1P/N4Qp1/rNqbpQ1R/2P2B2/4N2B/1K1QR1q1 w - - 0 1 legal: proof: d4 h5 a4 b5 axb5 c6 g4 Nh6 gxh5 Na6 d5 Nc7 d6 Ng8 dxc7 Ba6 Na3 Bb7 Nb1 Bc8 e4 e5 Qd4 d5 Qd3 d4 Qd1 Be6 f3 Bd5 exd5 Nf6 f4 e4 Qf3 Nd7 Qd1 Ne5 fxe5 Ke7 Ra3 Kd7 Ra1 Ke8 Kd2 Kd7 c8Q+ Ke7 b4 a5 h4 g5 h6 a4 h7 a3 e6 Kd6 c3 d3 h5 f6 h6 a2 b6 Qe7 b7 Ra3 b8N Ra4 b5 Ra7 b6 Qe8 e7 Ra3 b7 Ra6 Be2 Qd8 e8R Ra8 Rh4 Ra6 Qf5 Kc7 d6+ Kb6 d7 Ka7 Na3 Qb6 d8R Bc5 Bf3 Qb1 Nc4 Rb6 Ne2 Rg8 Rf8 Ra6 Na5 Qb4 Rc8 Rb6 Na6 Qc4 Nb4 Bd4 Ba3 Rb5 Kc1 d2+ Kc2 Rh8 Rb1 a1Q Ra8+ Kb6 Ra6+ Kc7 Na2 Rb4 Bc1 Ra4 Nb4 Qa3 Ra1 Rg8 Kb1 Rh8 Qf1 d1Q Qe1 Qd2 Qd1 Qe1 Be3 Rg8 Bg1 Qf1 Ra7 Kb6 Bh2 Qg1 Raa8 Rg7 b8Q+ Rb7 Qbf4 Rb8 Nb3 Kb7 Ra5 Qc5 Ra6 Qa7 Na5+ Ka8 Kc2 Qb3+ Kc1 Qg8 Kb1 Qc4 Qe1 Bf2 Kb2 Qd3 Rc1 Qd7 Kb1 Qe6 Qed2 Qg8 Re1 Qc4 Qd1 Bd4
8/BB2krp1/4P1r1/1pKrQQp1/R4pPR/1QB3q1/1B1N2P1/bN2r1N1 w - - 0 1 illegal: Other
k2BrRRq/p2P4/N2Q2KN/2p1N1q1/r2pp3/1P2Q3/BQPp4/R2Qb3 w - - 0 1 illegal: Other
1r6/1qb1NQR1/6r1/R5nB/P1B2N1P/Q1P1kb1q/1Bn2RnK/Rq3b1N w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 h4 Kf7 f4 Kf6 Kf2 g5 Kg3 b5 a4 e5 c6 d5 c3 d4 c7 b4 a6 d3 h6 b3 a7 b2 h7 e4 Qh5 g4 Bh3 d2 Kh2 d1B Bf1 e3 Ne2 Nc6 Rg1 Qd5 Nd2 b1Q Bb2 Rb8 a8R Bd6 Ra5 Ba6 c8B Nd4 Qe8 Nc2 Ne4+ Kg7 N4g3 Kf6 Rg2 Bc7 Nh1 Nh6 Rf2 Rg8 h8N Rg5 Ng6 Nf7 Ne7 Rg6 Be6 Ng5 Bf7 Qb7 Bc4 Kg7 f6+ Kh6 f7 Kh5 f8Q g3+ Kg1 Kg4 f5 g2 f6 Bb5 Nf4 e2 f7 e1N Kh2 Bf3 Bfe2 Ba6 Nc8 Bb5 Qa3 Kf5 Qg8 Ke4 f8R Ke3 Qf7 Ba6 Ne7 Bb5 Kg3 g1Q+ Rg2 Qf2+ Kh2 Qf1 Rf2 Ba6 Rg8 Ng2 Bd1 Qd3 Rg7 Qd7 Ba2 Bf1 Bc4 Bd5 Bg4 Bf3 Bh5 Qh3+
2N4r/bRbb1nqn/N4n1k/1q1PBP1B/Q2r4/2P1R2R/5B2/1KQR2rQ w - - 0 1 illegal: No proof kernel
Rr1N1BBn/3Q1K2/NqR1r3/2P2P2/1Q1bB3/1QQnnb2/1P5b/1N2rqk1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 g5 h4 a5 c4 e4 f4 a4 c6 e3 c7 a3 b6 a2 h6 g4 b7 e2 h7 e1B h5 g3 h6 g2 Ne2 g1R Qb3 Bc3 Bg2 Bd6 Nd4 Re1 Ne6 Bd4 Be4 Nc6 b8N Bb7 c8B Qb6 Na6 Rb8 Nd8 Ba8 Bb7 Ne5 Bd2 Nd3 Bb4 B6e5 Bf8 Bc7 c5 Bd6 Rg1 B6e5 Rg7 d6 Rc7 Ne7+ Kc4 Ng6 Kd5 Rg8 h8Q+ Rg7 Qg8 Re7 Rc6 Re6 Bc8 Bb7 Qh7 Ba8 Qd7 Bb7 h7 Ba8 Nd2 Bb7 Rc1 a1Q Rc4 Qd1 Nb1 Qf3 Rb4 Qf1 Rb5 Bg1 Ra5 Bed4 Nc7 Bh2 Ra8 Ba6 Qb4 Bb5 Bb7 Ba4 Ba6 Bd1 Bc4 Be2 Na6 Bf3 Be7+ Kg7 f6+ Kh6 f7 Kh5 f8Q Kg4 h8Q Kg3 f5 Kg2 Ba2 Kg1 Qfg8 Bg2 Bf8 Bf3 Kc4 d5+ Kb3 Bf2 Qc3 d4 Kc4 Ne5+ Kd5 d3 Nb7 d2 Nd8 d1N Bb3 Bd4 Ba2 Re8 Kd6 Ne3 Qgb3 Ne7 Ke6 Nd3 Kf7 Ng6 Qb7 Re5 Qd7 Re6 Qd1 Bg2 Kg8 Re7 Bc4 Re8 Qdb3 Re5 Kg7 Bf3 Bg8 Re6+ Kf7 Nh8+
q5b1/3n1R1N/qN1R3K/P2P4/Qb1BP2k/2q1Qr2/2BrR2B/N1nnR2b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 d6 c5 a6 f5 Kf2 Kf7 Kg3 b5 Kf4 g6 d4 b4 h4 b3 a4 b2 h6 c4 h7 c3 h5 c2 e6+ Kf6 h6 Qd7 e7 Qe8 a5 Nc6 d5 Nd4 a7 Be6 d7 Nb5 d8R Nc3 Nd2 b1B Ngf3 Bf7 Rh2 g5+ Ke3 g4 Kf4 g3 Nb3 g2 Ng5 Rc8 a8N g1Q Nb6 Qc5 e3 Kg6 Bd3 Nf6 Rg2 Qec6 e8Q Qa8 Qg1 Kh5 Qa4 Rg8 h8B Kh4 h7 Qcc6 Be4 Bb4 Rd6 Nd7 Bd4 Rgf8 Rd2 Bg8 h8R+ Bh7 Rg8 Rf6 Rg7 Bg8 Rf7 Rc7 Ra2 Nd1 Na1 Qc4 Rd3 Rc6 Bd2 c1N Nh7 Qb3 Rb2 Rc2 Ra2 Qc3 Qe1+ Kh3 Kg5 f4 Qg1 Rf5+ Kh6 f3 Be1 Rh2 Bg3 f2 Rc2 Rg2 Bh2 f1Q Rdd2 Kg4 Rf2 Qe2 Rf1 Kh4 Re1 Qea6 Rf2 Bd3 Rd2 Be2 Bc2 Bf3 e4 Re2 Qe3 Bh1 Bb1 Rf3 Rc2 Rd2 Ra2 Rd3 Rae2 Rd2 Bd3 Q8a7 Bc2 Qa8
2n1K2R/2bnR1q1/kP1B1Bb1/n4P2/Q2N2q1/2P1r2N/4rB1Q/3rNbRB w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 a5 Kc4 e5 Kd5 g4 h4 d6 f4 Kd7 b4 Kc7 b6+ Kb7 h6 a4 h5 g3 h7 e4 c3 g2 h6 e3 f6 e2 f7 e1R f5 a3 b5 a2 Na3 Qg5 Nc2 Qh5 Be3 Qh3 Bf2 Qg4 Nh3 g1Q Bg2 Re2 Ne1 Nd7 Qa4 Rb8 Be4 Ne7+ Ke6+ d5 Rd1 Q1g2 Rg1 a1N Rd4 Bg7 f8B Be5 Kf7 Bc7 Ke8 Nb3 Rd1 Rg8 h8R Na5 h7 Qg7 Rd4 Q2g4 Bh1 Ra8 Re4 d4 Qa2 d3 Qa4 d2 c6+ Kb8 b7 d1B Re3 Ka7 b6+ Ka6 b8Q Bb3 Re6 Bb7 Re4 Nc8 Re7 Bf4 c7 Bg2 Bc5 Bf1 Bf2 Na7 c8N Bc7 Nd6 Nc8 Nb5 Bd6 Re4 Ne7 Re5 Nf6+ Kd8 Ra7 Bg3 Rb7 Re6 Nc8 Ng2 Bc4 Ne1 Re7 Bf2 Bh2 Re3 Bf7 Qg3 Bg6 Qg2 Bg3 Qh2 Re6 Rd3 R6e3 Rd7 Bf4 Rf7 Nd5 Kd7 Bc7 Bc5 Rf8 Re7 Rf6 Ba3 Rfe6 Bb4 Rd3 Ba3 Rd1 Nd4 R6e3 Bc5 Bb8 Bd6 Nf6+ Kd8 Nd7 Ba8 Bf7 Bh1 Bd5 Ke8 Bc7 Rf8 Bg8 h8B Qe5 Bg7 Bh7 Rg8 Qf6 Rh8 Qh6 Bge5 Qhg7 Bf6 Bg6+
4r2R/qk1bNr2/1nRB3N/2Qb4/NRP2K2/QB1Pr3/1r2P3/bBB2n1r w - - 0 1 illegal: No proof kernel
3n4/R2r2Nb/b5b1/k1rP2P1/1b2B1R1/BR3PN1/nB1Qnb2/R2Kq1QN w - - 0 1 illegal: No possible last move
BBb5/2N2nP1/2r2kr1/6R1/nrb2K2/PQRPqNN1/B7/Qb1bb1QQ w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 Ke3 b5 g4 h5 g6 f5 a3 c5 d6+ Ke6 a6 b4 a7 h4 d7 h3 g7 b3 g5 c4 g6 c3 Nf3 c2 Nc3 b2 Ne4 b1B Rg1 h2 Kf4 h1B Ng3 Bc5 e4 Ba2 Bc4+ Ke7 e6 Qa5 e5 Bb1 Ba2 Nh6 g8Q Nf7 g7 Qb6 d8N Bf2 d3 Nd7 Be3 Rb8 a8B c1R Qf1 Qa5 Ba7 Qb6 Qg2 Rb7 Bb8 Be1 Qh2 Bg2 Qh1 Bh3 Rg2 Rh6 Rc2 Bg2 Rc3 Nc5 Qg1 Na4 Qh8 Rg6 Qhh1 Ke8 e7 Qa7 Ne6 Rb4+ Nfd4 Kd7 Nc7 Bd5 e6+ Kd6 e8Q Bc4 Qb5 Ke7 Qbb7 Kf6 e7 Qc5 e8Q Qb6 Kf3 f4 Qee3 Rc2 Qc1 Qc5 Ke4 f3 Kf4 f2 Nf3 f1B Qb2 Be2 Qb3 Bd1 Qe4 Bf2 Qee1 Rc1 Qef1 Bbc2 Rb1 Be1 Rb2 Bb1 Re2 Rc2 Re5 Re2 Rg5 Re6 Qff2 Rd6 Qfb2 Rc6 Qa1 Qe3+
R2bn1b1/N3P2N/B2B2r1/bQb1R3/r2n1k2/3P1PNQ/1r2qNBb/KQ6 w - - 0 1 illegal: No proof kernel
R1NNN2b/2Q1PB1R/bnB2B2/4N3/1bqP2r1/Q1bK1Pkr/1b2R1n1/r7 w - - 0 1 illegal: No possible last move
Rb1k4/N2q4/Q1b1b1nP/nQ4Rn/rbB2N1K/rQB4N/Q4PP1/3R1r2 w - - 0 1 illegal: No proof kernel
2QB2nN/1b1r1q2/k1BNrRPQ/n4bbR/P1rNP2n/5K2/5Qr1/R5N1 w - - 0 1 illegal: No possible last move
nRNr4/Q3Q3/Bb1b2P1/1QR2P1R/1P2Q2r/k2n1N2/1r2bB1K/1b1q2nB w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb4 d6 e5 f6 c5 f7 h5 b3 a5 b6 h4+ Kh2 h3 g4 a4 f5 e4 b7 a3 g6 e3 d7 a2 d5 c4 g5 e2 g7 e1N g6 c3 d6 c2 Nf3 Nf6 g8B Ne8 Bh6 c1R Na3 Rc2+ Qe2 Nd3 Nb5 Nc6 b8R Nc7 Rc1 a1B Be3 Bd4 Na7+ Bb6 Bf2 Ba6 Nc8 Rh4 Qe4+ Ka3 b4 Rb2 Rc5 Rf4 Be2 Be7 f8Q Nd4 Bd5 Bc4 Bf1 Ne2 Qf7 Ng1 Bb7 Ba2 Qfc4 Bb1 Qb5 Qh8 d8Q Qd4 d7 Bd6 Qde7 Qd5 Kg3 h2 d8Q Qb3 Qdd7 Qc2 Ba6 Qd1 Rb7 Rb8 Bg2 Na8 Na7 Rf8 Rb8 Rg8 Nc8 Rd8 Qa7 Nh3 Re1 h1B Kh2 Ng1 Re3 Ba2 Nh4 Bb1 Rh3 Qd2 Nf3 Qd1 Bf1 Bg2 Rh5 Bh3 Bg2 Bg4 Ne5 Bf3 Bh1 Be2 Nf3 Rh4+
1n1N2QQ/rn3qPN/B3N1R1/1b2PQb1/b1RBR3/3r1KQ1/2r1P2r/nk6 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 d4 a5 b4 f5 g4 h5 g6 c5 b6 c4 d6+ Ke6 d5+ Kd7 g7 f4 g5 h4 g6 c3 b7 a4 b5 h3 b6 c2 Bg2 a3 Nf3 a2 Qd3 h2 Nc3 Rh6 Nb5 Be7 Rg1 h1R Ng5 f3 Bb2 c1R Nc7 Rc2 Bd4 R1h3 Nh7 Nf6 g8Q Ra7 g7 Qf8 Ne6 Qf7 Rac1 a1N Qf5 Ne8 Bh1 R6h5 Rg6 Bg5 Qh8 Rh2+ Kg3 f2 Kf3 f1B Bg2 Rca2 Rc4 Rc2 Bh1 Bh3 Bg2 Nc6 b8R Ba6 b7 Bb5 Ra8 Rh6 b8Q Rh4 Qb6 Nb8 Qa5 Ba4 Qe1 Re4 Qg3 Bb5 Bf2 Rd4 Qg8 Rd3+ Be3 Rc7 Raa4 Ra7 Bh1 Nc7 Re4 Nca6 Rac4 Nc5 Qh8 Nb7 Bg2 Rdd2 Bd4 Rd3+ Re3 Na5 Nf4+ Qe6 Ke4 Rb2 Qff8 Ba4 Qf6 Bg4 Bh3 Bf5+ Kf3 Qe8 Bg4 Be6 Bf5 Qg8 Be4 Rc2 Qf5 Ke8 d7+ Ke7 Rc6 Qf8 Rc8 Qf6 d8Q+ Kf7 d6 Bed7 Bc6 Nb7 Bb5 Be8 Ba6 Beb5 Qe4 Qe6 d7 Qd5 Qdg8+ Ke7 d8N Qf7 Rc4 Kd7 Nc6 Kc7 Rc5 Kb6 Nd8+ Ka5 Qf5 Kb4 Nfe6 Ka3 Rc3+ Ka2 Rc4 Rd1 Re4 Kb1 Nc6 Rdd2 Ncd8 Rd3+
b1rB2q1/3RPn2/Rbn1rrPn/2PKN2Q/8/1Qb1kBB1/3rN2R/N1R5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Ke3 Ke6 Ke4 h5 c4 a5 g4 a4 b4 f6 g6 d6 b6 h4 b5 h3 c6 h2 c7 a3 g7 a2 g5 Nd7 b7 Ra5 b8B Qe8 g6 Nh6 g8Q+ Nf7 b6 Ra6 b7 f5+ Kd4 f4 e4 f3 Na3 f2 Nc2 d5 Ne2 Rc6 Bg2 f1R Bg5 Rf6 Bf3 Ba3 Qh7 Qg8 Qh5 Be7 c5 Bd8 Rc1 Rd6 Qd3 a1B+ Qc3 Bb2 Na1 Ra6 Rhd1 h1N Rd3 Nf2 Bh4 Ba3 Qb3 Bb4 Rd2 Ng4 Rb2 Ke7 e6 Ngh6 e5 Rc6 Ra2 Rb6 Ra6 Bc3+ Ke3 d4+ Ke4 d3 Kd5 d2 Bg5 Kf8 e7+ Kg7 e6 Nde5 e8R Nc6 Re7 Bd7 c8R d1R+ Kc4 Rd3 Bg3 Rd2 b8N Bc7 Rd8 Bc8 Ree8 Bb7 Nd7 Ba8 Ne5 Nf5 e7 N5h6 Rd7 Re6 Be3 Kf6 Bg5+ Kf5 Rb8 Rb7 Rbd8 Bb6 B5f4+ Ng5 Rb8 Rc7 Rb7 Rc8 Rba7 Rh7 Ra2 Rf7 R7a6 Rb2 Kd5 Rd2+ Nd3 Rff6 Bc7 Bd4 Ne5 Bc3+ Kc4 Rf7 Bd8 Rff6 Bg4+ Ke4 Bf3+ Ke3 Rb2 Rd1 Rbd2 Ngf7 Kd5 Qh7 Nd4 Qg8 Rh2 Rf1 Ne2 Rf2 Nf4 Rb2 Ne2 Rd2+
N2B2b1/r2q1Bq1/1rR1Q2Q/2b1B2K/N2bb1RP/n1nP1k2/1Q1P1b2/1B5R w - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 fxe5 d5 g4 d4 gxh5 d3 cxd3 Bd7 Ra3 Be6 Ra1 Bc8 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5+ e6 a5 e4+ Ke5 b4 g5 h4 c5 h6 f5+ Kh5 Kf4 b6 a4 e7 c4 e8R a3 h7 a2 e5 g4 b7 g3 b5 c3 b6 c2 e6 g2 e7 Qd4 Nh3+ Kg3 Ba3 c1B Qb3 g1B Nf4 Ra7 Qe6 Qd7 Nd5 f4 Be2 f3 Nc7 f2 Na8 f1B Nc3 Bg2 Na4 Be4 Bd1 Bb2 Rc1 a1Q Bc2 Na6 b8B+ Nc7 b7 Kf3 Bb1 Bf2 Rc6 Nb5 Be5 Bbd4 b8Q Qb2 Bad6 Na3 Bc7 Qc3 Bd8 Nf6+ Kg5 Ba6 Qb2 Nd5 Kh5 Rg8 h8Q Rg6 Qh6 Bc4 Ba5 Rf6 Rb8 Rg6 e8B Bfc5 Bd8 Bb3 Bf7 Ba2 Qb3 Qb2 Rb4 Nc3 Bc2 Qa1 Qb2 Qg1 Bb1 Bad5 Qe8 Rd6 Qee6 Qg7 Rc7 Rb6 Rc6 Bh7 Rc4 Bg8 Rb4 Bde3 Re4 Bed4 Rg4 Be4
2B2K2/3q1n2/1n3Q2/kb1RN2q/4N3/bPNPRP1r/Q2n2RQ/BRr1b1b1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 c5 Kf4 Kc7 Kg5 Kb6 Kg6 e5 Kf7 g5 h4 a5 f3 g4 d3 c4 b3 a4 h6 g3 f6 c3 h5 g2 h7 c2 d6 e4 h6 a3 d7 a2 Ne2 g1N Ng3 e3 Qe2 Ne7 Nc3 Nf5 Rb1 a1B Nge4 Ra3 Bb2 c1Q Rh2 Ra2 Rg2 Ka5 b6 Nh3 b7 Ng3 Qc2 e2 Qd2 Qb6 d8R e1B Rd5+ Qc5 Qf2 Nd7 b8N Nb6 Nd7 Bd6 Ne5 Ba6 Kg7 Ng5 f7 Ra4 f8Q Bb5 Qf6 Nf7 Qd2 Rc8 h8Q Qd4 h7 Ba3 Qc2 Rc7 Qb8 Qh6+ Kg8 Qh1 h8R Qh5 Kg7 Rac4 Re8 Rc8 Re6 Rh8 Re7 Rh6 Kf8 Rc7 Rg1 Rc5 Bh3 Nf1 Bc8 Nd2 Rg2 Rh7 Bc1 Qa4 Qa2 Rc4 Bb2 Rc6 Nd1 Rc1 Bd4 Bc3 Qc7 Bcb4 Ba1 Bc5 Ndc3 Bg1 Ng4 Qg6 Qh2 Rh3 Ne5 Qg5 Re2 Qh5 Re3 Nd6 Rg7 Qd4 Rg2 Nf7+ Kg8 Qc5 Kg7 Qc6 Kg8 Qd7 Kg7 Nd6+ Kf8 Nf7+
4R3/7K/Q5q1/r1B1N1RR/2Q1bnPR/bB4bP/B1PNNb1q/3rk1rn w - - 0 1 illegal: No possible last move
3bbB1B/7B/r1k1b2R/Q1r5/nn2P1Bn/1Nq2N1N/R1PPbqRK/1Q6 w - - 0 1 illegal: No proof kernel
2b1B2Q/2Rq4/Q1qrRK1b/nNn2R1P/1nN2P2/1Q1N1r1k/4P3/BNn1b3 w - - 0 1 illegal: No proof kernel
2q1QR1Q/q1Bn1b2/2QrN3/4N1P1/P3P1Kr/nR4NB/N1n2b1k/1nR4r w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 Kf3 f5 d4 c5 g4 b5 a4 h5 e4 b4 d6+ Ke6 a6 h4 d7 h3 g6 f4 g7 c4 g5 c3 a7 c2 Rh2 b3 Bg2 b2 Rh1 h2 Ra3 Nh6 g8Q+ Nf7 Nc3 b1N Nge2 Bc5 Ng3 Qa5 Na2 Rh4 Qh8 Nd6 Rb3 Nb5 d8R Ba6 Rf8 Nd7 Qd3 Bc8 Qc3 N5a3 Re1 Rb8 a8N h1R Nb6 Qa7 Nc4 Rb6 Bd2 Rc6 Rc1 Rd6 Be3 Bb6 Bg1 Bb7 Bh2 Bd5 Bh3+ Rg4 Kf2 f3 Ke3 f2 Kf3 Ke7 e6 f1N Ne5 Ne3 Qc4 Rh4 Qc6 Bc4 d5 Bc5 Rf1 c1Q Rg1 Nec2 Rd1 Rh6 Kg4 Bf2 Re1 Qce3 Rc1 Qec5 Qa6 Qc8 Qb6 Rc6 Qa6 Kd6 e7 Rb6 e8Q Rh4+ Kf5 Kc5 d6 Kd4 Qb7 Bf7 Qc6 Nf6+ d7 Ra6 Qce6 Rd6 d8N Nd7 Qef6 Qc3 Ne6+ Ke3 Nd3 Qcc7 Qc3 Kf3 Qc6 Bd4 Ne5+ Kf2 Nf1 Qc8 Bg3+ Kg1 Bf4 Rh5 Ng3+ Kh2 Kg4 Bg1 Be3 Bf2 Bb6 Rh7 Bc7 Rh4+
2Qn4/1rrQ4/1N1r1b2/BN1BqP2/3N2qQ/1q1PRP2/3n1B1r/1bk1K1RB w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 g4 Kd6 g6 Ke5 b6 Kd4 d6 a5 d7 h5 b7 e5 g7 c5 b5 e4 b6 e3 Rh2 c4 Rh3 a4 Rh1 c3 Bh3 Kd3 Qe2+ Kc2 Qf1 h4 Ne2 a3 Bg2 a2 Rg1 h3 Bh1 h2 Qh3 Qh4 d8Q Rh7 Qd7 Nc6 b8N Ra6 b7 Nf6 g8B Be7 Bgd5 Ne4 g5 Bf6 d3 Nd8 g6 Rd6 g7 Nd2 g8Q Qg4 f3 Re7 Qc7 Be6 Nd7 Rg7 b8B Bf7 Nf4 e2 Nb6 Be6 Qc8 Rb7 Qgh7 Bg8 Qhd7 Be6 Bg2 h1R Qh4 Rh2 Bc7 Bf7 Ba3 Be6 Bc5 Kc1 Bh1 c2 Rg2 Bf7 Ne6 Bg8 Kf2 e1R Nd4 Re7 Nc3+ Kb2 Qa4 c1Q Qad7 Qd1 Ncb5 Qb3 Re1 a1Q Re3 Kc1 Ke1 Rg7 Rg1 Bf7 Nc6 Qe5 Ncd4 Qa4 Be4 Ba2 Bd5 Qc2 Na4 Qb3 Ba5 Ra6 Nb6 Bb1 Qd6 Rgc7 Qdd7 Qe8 Bd6 Qe6 Bg3 Qe8 Bf2 Qe5 Na4 Rac6 Nb6 Rd6
Rnk2BbN/5B1n/5NQ1/3KP1b1/rq1bR3/1nq1PRB1/rB1QP2Q/1n6 w - - 0 1 illegal: No proof kernel
1q3q2/rn1Nn1kB/Q5P1/Q3q3/BRK2RP1/nQn1b2P/6NB/2Rr2Bb w - - 0 1 illegal: No proof kernel
B1Bn1Rq1/2Rb4/2PKR1qb/P1Qr1Qb1/b2rN1QN/r4P2/2nB4/k3B3 w - - 0 1 illegal: No possible last move
bk1r3q/1rq1nKb1/2PB1PB1/6N1/NnQ2B2/5BQR/2n1Pn1q/Q1R2N2 w - - 0 1 illegal: No proof kernel
1Q2Nk2/1BnR1q2/1P6/1QbN2r1/B1nnqPr1/1q3R2/1BNP1Nb1/1R2n2K w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 e5 Kf2 h5 b4 c5 g4 a5 Kg2 h4 d6 e4 g6 c4 f6 e3 g7 c3 b6 a4 g5 c2 f7+ Kd7 b5 a3 b7 e2 b6 a2 g6 Qc7 Nh3 Ra7 Bb2 c1N Na3 Na6 b8Q Nh6 g8B Nd3 g7 Ne5 Qb3 Nf5 Rb1 a1Q Nf2 Qa2 Rh3 e1N+ Kh1 Rh5 Rf3 h3 Bg2 h2 Nc2 Nc4 Qb5+ Ke6 d7 Ke7 d8N Bb7 Ne6 Nd4 Bh7 Qd7 Nc7 Qb3 Ne8 Rg5 g8R Bc6 Rg7 Nc7 Be4 Ba8 Bb7 Rg4 Bf1 Ra5 Be2 Qd5 Bd1 Qh5 Qb4+ Rc5 Qb5 Rcg5 Rh7 Bg7 f8N Qf7 Ne6 Bh8 N6g7 Kf8 Nh5 Be5 Nhf6 Bd6 Rg7 Bc5 Nd5 Ba3 Ba6 Re5 Rd3 Nde6 Nb4 Rg3 Ne4 Qe7 Ndf6 Qc3 Ba4 Nd4 Nc2 Qb3 Rc3 Bc6 Bb7 Bc5 Re3 Qe6 Rd7 Rg4 Rh3 Qf7 Rg3 Nef3 Kg2 Reg5 Nf2 Bd5 Nd1 Be4 Nd5 h1Q+ Kf2 Qh8 Kg2 Qe5 Nf2 Ne1+ Kh2 Bg2 Rf3 Qe4 Kg1 Bf1+ Kh1 Bg2+
1B4nB/NrRrk3/1PK5/3q1rNN/2P2PB1/1Q1n2bQ/1R4bb/2NQ1rq1 w - - 0 1 illegal: No possible last move
1B1n2Bk/1q2q3/PP1R4/N2N4/bQr2B1K/qbrN2Rn/b1B1P2Q/2bQ4 w - - 0 1 illegal: No proof kernel
1N1RNK2/1nn1bB1P/3b1r2/k3qbR1/2qP3n/1brN2R1/P7/Q1QBBR2 w - - 0 1 illegal: No possible last move
5NN1/1Q1K2P1/5P1Q/2kBNbNR/n1n1rq1R/1Pb1nb1q/1B1R2B1/3n2r1 w - - 0 1 illegal: No possible last move
6rk/1B2qPq1/b6q/6Bn/P3q1rN/RKN2BnQ/1QR1P1Q1/Q1N1bb2 w - - 0 1 illegal: No proof kernel
3r1n1q/bB1BPPnk/NB1q4/2K5/4RbQr/n2QPQ2/1N4R1/3R1bbB w - - 0 1 illegal: No proof kernel
3B1bQQ/kr1PR1Q1/5qNr/N1R4n/1P1nb3/3B2Q1/Rb3PrB/4q1bK w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 Kd7 b4 e5 h4 a5 h6 c5 b6 g5 f6 e4 h7 g4 f7 e3 d6 Kc6 b7 Kb6 h5 c4 h6 g3 d7 e2 d5 g2 d6 c3 Ra2 c2 Na3 a4 Bf4 c1B Bh2 Qh4 d8B+ Ka7 d7 Nf6 Qd6 Bg7 f8Q Nh5 Nc4 a3 Qg8 Bf6 Na5 Bg7 Qg3 Qe7 Nf3 g1B Ne5 Nc6 b8R Bb2 Ng6 Bf8 Rb5 Qf6 Rc5 Bb7 Qg7 Rg8 h8Q Nd4 Qhh7 Rh8 Qhg8 Rb8 h7 Bc6 Bh3 Rb6 Bf5 Rb7 Bd3 Be4 Qc4 Rg8 h8Q Rc7 Qe7 Rg7 Qcg8 Rh7 Qeg7 Rb7 Kd2 Rh6 Ke3 e1R+ Be2 Rc1 Bd3 Nf3 Ke2 Rc3 Kf1 Nd4 Ra1 a2 Re1 Nf3 Kg2 a1Q Re2 Qe1 Rd2 Bc1 Ra2 Bb2 Bc2 Qd2 Qf4 Bc6 Bg3 Bh2 Re1 Bg1 Re7 Qe1 Bh2 Be4 Kh1 Nd4+ Qf3 Ra3 Qg2 Re3 Bd3 Rg3 Qf3 Rg2 Qh3 Qd1 Qg3 Qe1
N1nQ2Q1/1brP2PN/3QRK1n/kNB3q1/Pq2B1N1/1rn2R2/3r1bB1/2n5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 e5 Ke4 c5 f4 Kc7 g4 b5 a4 h5 d4 c4 f6 b4 f5 c3 a6 Kb6 f7 b3 d6 b2 g6 c2 g5 h4 f6 h3 a7 h2 g7 Be7 f8N Qd7 d5 Qe6 f7 Rh5 d7 Ka5 d8Q+ Qb6 g6 Bc5 d6 Rf5 d7 Ba6 Qd6 Bf2 Nf3 Nh6 g8B Nc6 g7 Rc8 a8N Rc7 Na3 b1N Be3 c1N Bh7 Qc5 Nb5 Ne7 Ra3 Nc8 Bg2 Rf6 Re1 h1R Rb3 Rh3 Nh2 Re6 Ng4 Bb7+ Qc6 Qe7 Bc5 Rd6 Rf3 Qg5 Ree3 Rd5 Qd6 Rg3 Bf5 Rh3 Nh7 Rd2+ Qc6 Rg3 f8Q Rh3 Qg8 Rg3 Rd3 Rh3 Kd5 e4 Ke6 e3 Be4 e2 Qd6 e1Q Rf6 Nc3 Rdf3 Qee3 Rg6 Qd4 Rgf6 Qb4 Rg6 Nf5 Ke5 Rg3 Re6 Nh6+ Rf5 N3a2 Qc6 Qg6 Qd6 Rb3 Rf3 Qh5+ Kf6 Nc3 Be3 Qd5 Bc5 Qg5+
2bQ3B/2P1bq1r/4nb1k/1N3b1B/qn1R1KPQ/R2P4/R4Br1/1Q1r1B1N w - - 0 1 illegal: No proof kernel
Q4n1k/2PKnB2/5N2/RB1R3n/4P1Pq/2Qr2Qr/q1b1N2r/BRRn2b1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 h5 Kf3 a5 Ke4 f5+ Kd5 Kf7 e4 Kg7 c4 f4 b4 h4 g4 d6 e6 h3 e7 h2 e8R a4 b6 a3 g6 a2 b7 f3 c6 f2 c5 Qb6 c7 Ra3 b5 Rh6 c6 Nd7 Ke6 d5 b8R d4 Qe1 d3 Rd8 d2 Nc3 d1N Bb2 Ba6 c8Q Qc7 b6 Ne3 b7 Ne7 Nge2 Nd1 Nd5+ Kg8 Nf6+ Kh8 Rc1 a1Q Ra8 Rhh3 b8Q Qg3 Qc3 Bd3 Ra5 Qh4 Qg3 Bc2 c7 Qa2+ Kd6 Rb3 Ba1 Ra3 Rg1 h1R Qa8 R1h2 Rb1 Nc5 Rh1 Ne6 Kd7 Rb3 Ng1 Ra3 Bb5 f1N Ne2 Rb3 Ke8 Bh6 Rd5 Be3 Rc1 Bg1 Kd7+ Kg7 Qc4 Rd3 Qc3 Nfe3 Rb1 Ng2 Rc1 Ngf4 Rb1 Kh6 g7 Nh5 g8B Kg7 Bf7 Nf8+ Kd8 Be3 Rf1 Bg1 Re1 Nf2 Rec1 Nd1 Ke8 Kh8 Kd8 Nfg6 Kd7+ Nf8+
NK1bBb1B/2P1Pr2/1Qrn4/2rRB3/3Q1NN1/P2qR2b/5rR1/1nk2qB1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 g5 c4 b5 h4 f6 a6 g4 a3 g3 e6 b4 a7 g2 h6 d6 e4+ Kg6 e7 b3 e8R f5 c6 b2 c7 f4 h7 f3 e5 Kf5 h5 f2 e6 Bd7 c8Q Nh6 c5 Nc6 Nf3 g1B Ne5 Nd4 c6 Nb3 Qd4 Nd2 Nc3 b1R Ra2 Rb6 Qb7 Rc8 a8N Nf7 h6 Nb1 Bb5 f1R Be3 Rf2 Ng4 Rg8 h8B Rg7 h7 Ra6 e7 Rc7 Kc4 d5+ Kc5 Nd6 Rh3 Rf7 Be5 Ra5 Kb6 Bh2 Qb4 d4 h8B d3 Ne2 d2 Qd4 d1Q Nf4 Qf1 Ba4 Rc5 Ka7 Bc8 Kb8 Qd7 Rd8 Bg3 Qdb2 Ke4 Qd4+ Kf3 Re2 Qf5 Rh2 Qd3 Rg2 Be6 Qb6 Bh2 Nh6 Bh3 Ng4 Bg1 Rc2 Bh2 Rc3 Bg1 Nh5 Ke2 Nf4+ Ke1 Bb5 Kd1 Rd7 Ne8 Rd5 Nd6 Rb3 Rd2 Ba4 Kc1 Bb5 Bf2 Ba4 Be1 Bg1 Rf2 Bb5 Qf3 Re3 Ba5 Ba6 Q3d1 Bc8 Qdd3 Bd7 Ra7 Be8 Ra6 Qb3 Bd8 c7 Rac6 Qbb4 Qde2 Qb6 Qd3
2n1b3/1P2Br2/1R2Rb1Q/2P2rP1/qRq3Q1/k4bBB/1n1N2N1/1Qbq2KQ w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 a5 Kf2 h5 b4 d5 c4 Kd7 g4 e5 c6+ Kd6 g6 e4 b6 a4 f6 a3 b7 d4 b5 Kc5 g7 Kb4 b6 a2 f5 d3 c7 h4 c5 d2 f7 h3 f6 h2 g5 Qd5 Nf3 Bd7 c8Q Rh7 Bh3 Qc4 Re1 h1B Kg1 e3 Nh4 e2 Ng2 Nc6 b8R Be8 Qg4 Nge7 g8Q Bg7 f8B Nc8 f7 Ne5 Be7 Nd3 f8Q Nb2 Qd5 Bf6 Qh6 Rf7 Qc2 d1Q Nd2 Ra3 Rb1 a1Q Qce4 Ka4 Qb7 Rf3 Qed5 Nd3 Rb4+ Ka5 Nf4 Qcb3 Qdf5 Rf2 Bb2 Qc4 Be5 Nb2 Qb1 Be4 Nd5 Rf5 Bg3 Qa3 Nf4 Qaa2 Rb5+ Ka4 Qc6 Qab3 Rb4+ Ka3 Qb7 Qa4 Qc6 Bc2 Qh1 Be4 Ng2 Bd5 b7 Bf3 Ra8 Qe4 Ra6 Qc4 Ne4 Qdb3 Rab6 Qd1 Rf1 e1B Rf2 Qdd3 Re2 Bd2 Re1 Qdb3 Re2 Bc1 Nd2 Qbc2 Ree6 Qd1+
RR2RK2/NPNb1P1n/1k1B2q1/rBbn4/n1B1Q3/2Q4r/NP5R/b4qn1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 c5 Kc4 Kc7 g4 e5 d4 h5 f4 a5 b6+ Kb7 f6 e4 f5 h4 f7 h3 d6 h2 Kd5 c4 d7 c3 Ke6 a4 g6 a3 g5 a2 g7 c2 f6 e3 d5 e2 g6 e1N d6 Rh6 Qe2 Qc7 Qe4+ Qc6 Bb5 Rh5 Ne2 Ne7 g8B Na6 g7 Rh3 Nd4 Rb3 Nc3 Rb8 Bf4 Ka8 b7+ Ka7 Bg3 Qc5 Nc6+ Kb6 Na7 Nf3 Rae1 a1B Na2 Nd5 Bf4 Be7 f8N c1N Kf7 Nd2 d8R Ne2 d7 Qc2 Bd6 Nc5 Ne6 Ra8 Nc7 Nf3 Rf8 Na4 d8Q Bg4 Qc8 Ng5+ Ke8 Rd3 Bf7 Nh7 g8R Ng1 Rh8 Nf4 Bfc4 Rh3 f7 Nd5 Rfg8 Bg5 Rf8 Be3 Rfg8 Bc5 Re3 Nhf6+ Kf8 Bd7 Ra3 Qg2 Re3 Qg6 Re2 Nf3 Rhe1 h1Q Rh2 Qf1 Ree2 Ng1 Re1 Be8 Ree2 Rh5 Qh3 Rh4 Qc3 Rh3 Qh1 Rh4 Nc6 Qc2 Kg7 Ra6 Na7 Bd7 Ra8 Qd3 Rhb8 Qg6+ Kf8 Rh3 Ree8 Ra5 Qe4 Nh7#
4b2b/1PPB4/nrRb1BN1/1KnRq1q1/QR5N/2B1R1N1/2QP4/n2r2kn w - - 0 1 illegal: No possible last move
kB3N2/4KQ1b/4qB2/1b2r1R1/P1N2Q2/N1b2nPR/1bBRP1b1/n2N1r1b w - - 0 1 illegal: No possible last move
1kB1RQ1B/3Q1n1Q/1rn2n1N/3P1N1R/1qn1RP2/P2Bn1K1/b2Q4/n3r1b1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kd7 Kf2 c5 d4 Kc7 h4 b5 a6 e5 h6 g5 a3 e4 h5 g4 a7 e3+ Kg2 b4 h7 e2 h6 e1N+ Kg3 b3 f6 c4 f7 b2 Nd2 b1N Rh5 c3 Nc4 c2 Ne5 Qe7 Ne2 Nd2 Bb2 Nc4 Qd2 Ng2 Re1 c1N d6+ Kb7 d7 Nc6 d8R Rb8 Re8 Nb3 a8B+ Kc7 Bb7 Nge3 Ba1 Be6 Bc8 Nf6 Bc3 Bg7 f8Q Qb4 Nf7 Rb6 Qe7+ Kb8 Qd7 Rg8 h8Q Na1 h7 Bf8 Nh6 Bc5 Qhg7 Bd5 Re4 Re8 h8Q Re7 Qhh7 Re6 Kh4 g3 Qf8 g2 Ng3 g1N Bd3 Nh3 Ngf5 Ng5 Kg3 Nf7 Re2 N4a5 Re1 Ba2 d5 Nac4 Bb2 Nec2 R1e2 Bg1 R2e3 Ng4 Bh8 Nf6 Re1 Re7 Rd4 Re2 Re4 N2e3 Re8 Rf2 Re2 Rf1 Re4 Re1 Re8 Ng2 R2e4 Nge3
1B4Q1/2BBnNR1/2KnP3/2n1q2k/Q2b4/Q1BNrbr1/2nPP2N/nnR5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kf3 f5 b4 Kf7 h4 a5 d6 c5 h6 Kg6 h7 a4 e6 f4 Ke4 a3 Kd5 c4 b6 g4 b7 g3 b5 g2 d7 f3 b6 f2 Nc3 a2 Rb1 a1N Ne4 c3 Rb4 c2 Nc5 Nh6 Bb2 c1N Qa4 Rg8 h8N+ Kh5 Nf7 Qc7 d8B Nd7 b8B Nf5 b7 Qe5+ Kc6 Rg3 Bdc7 Na2 Bc3 Bg7 Rg4 Nd6 Nd3 Nc5 Nf3 g1N Nh2 Nf3 Bg2 f1N Rg6 Bf6 Rg7 Ne3 Rc1 Ne1 Bd5 Ne1c2 Bc4 Nd7 Bb5 Nd5 B3a5 Nac3 Nc5 Rg4 Rg8 Rg6 Qf4 Rh6 Ba7 Bg7 b8Q Kg6 h5+ Kh7 Qb4 Rg6 h6 Qg3 Qb7 Qe3 Bab8 Bh8 Qa7 Bd4 Qb3 Rg7 Qc4 Kg6 h7 Qg5 h8Q Qe5 Qa6 Ra7 Bb4 Rb7 Qa3 Nde3 Bba5 Nb1 Qca4 Kf6 Qh7 Rg3 Rg6+ Kf5 Rg7+ Kf4 Qg8 Kf5 Bc4 Rb3 Bb5 Rd3 Bc3 Kf4 Bd8 Bb7+ Kc7 Bf3 Ne4 Nc5 Bd7 Nd5+ Kc6 Re3 Nf2 Kf5 Bdc7 Kf4 Nd3+ Kf5 Nh8 Kf6 Ng6 Kg5 Nh8+ Kh5 Nf7 Ne7+
1Q1RN3/1Q2Nn2/1Qrq1r1k/P3B1b1/nR2rR2/r1bb2P1/Q3BPK1/N1b5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 a4 Kf7 d4 Kg7 f6+ Kg6 f7 c5 d6 e5 g3 b5 d7 h5 d5 h4 d6 c4 a6 c3 a7 e4 a5 h3 Nf3 c2 Nd4 b4 Nc6 b3 Qf3 e3 Na3 b2 Rb1 e2 Bf4 c1B Nc2 h2 Na1 Rh6 Be5 Be7 f8Q Ba6 Qg2 Qc7 d8Q Bd3 d7 Qd6 Qb6 Na6 d8R Rc8 a8N Nc5 Nc7 Na4 Ne8 Rh4 Qd5 Nh6 Qdb5 Kh5 g6 Re4 g7 Nf7 g8Q Beg5 Ne7 Rc6 Qb3 Nh6 Qf4 Nf7 Qb7 Kh6 Q3b6 Nh8 Qa2 Nf7 Rg1 h1R Rg2 Rh5 Rh2 Re3 Rh4 Re4 Rg4 Rh1 Q6c7 Rh4 Qcb6 Re3 Qfb4 Rf3 Rc4 Re4 Qb8 Rff4 Q6b7 Rf5 Q4b6 Rf6 Rb4 Bcf4 Rd1 b1R Rc1 Rb3 Rcc4 Bc1 Rd4 Rh4 Rg4 Ra3 Rgf4 Bb2 Kd2 e1B+ Ke3 Bbc3 Kf3 Bed2 Kg2 Bc1 Be2 Rg4 Rf5 Rd4 Rf4 Re4
3r3Q/2k5/BR1NbKP1/3PQr2/3bPq1Q/N1br2NN/nB3nr1/b4B1R w - - 0 1 illegal: No possible last move
2kN3Q/1N5P/N3R3/1R1q2RP/1b2b2n/1b1Q2b1/2NrQrBP/Bn1r1rK1 w - - 0 1 illegal: No possible last move
4NQ1R/1N3R1r/BBk1bb1Q/B1pr1Q1n/2r1b2n/2N3P1/1K1PP3/nq1N4 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 b6 c5 d6 f5 b7 h5 g3 a5 b5 a4 b6 a3 e6+ Kc6 e7 a2 e8N h4 g6 h3 d7 h2 g7 f4 Bb2 f3 Bc3 Qg5 d8N+ Kd5 Nh3 Qe7 Nf2 Ra4 Bh3 Rd4 Qc2 Qg5 Kd1 Rc4 Kc1 Qg6 Ba5 Nh6 g8Q+ Be6 Nd1 f2 Kb2 f1R Qg7 Nd7 b8Q Nf5 b7 Nf6 Qh6 Nh5 Qbf4 Nh4 b8B Be7 Ba7 Qf5 Nb7 Rh7 B7b6 Bf6+ Nbc3+ Kc6 Qf2 Qd5 Qcf5 Qd3 Q2f4 Rf2 Qf8 Rf3 Q4h6 Rff4 Rb1 Rfd4 Bg2+ Rd5 Be4 Qe3 Bd3 a1N Rf1 h1B Rf4 Ra4 Ba6 Qd3 Rf2 Nc2 Ra1 Rc4 Ra4 Na1 Rh2 Rg4 Rf4 Be4 Qhg7 Rh6 Ka2 Bd4 Qfe7 Ng6 Bb4 Bf3 Kb2 Nf6 Qg5 Bh1 Rh5 Nh4 B4a5 Rh8 Rh7 Nh5 Rf7 Bf6 Qef8 Rc4 Q7h6 Bg2 Qf5 Be4 Rhg7 Rh7 Rg8 Rcd4 Rh8 Ra4 Bc7 Rc4 Bcb6 Qb1+
Q1bb2B1/2P3bN/1Bn1Prk1/Q2p3r/3nN2q/KrB1R3/5QBP/nRR5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Kc3 d5 Kb4 a5+ Ka3 f5 e4 Kf7 b4 f4 c4 f3 h6 f2 b6 g4 h7 g3 c6 g2 b7 a4 c7 Bc5 e6+ Kf6 e5+ Kg6 e7 Qd7 e8R Ra6 Qe1 Ra8 Nf3 g1R Nc3 Na6 b8Q Qf7 Be3 Be6 c8B Rg3 Qb5 Qf6 Ng5 Bg4 Nce4 Bf8 c5 Bg7 c6 Ne7 c7 Nc5 Rb1 Nb3 Be6 Nc6 Qa5 Na1 b5 Ra6 Bg2 f1N b6 Nd2 b7 Nf3 b8Q Nfd4 Bg8 Bc8 Qf2 Qf4 Rhe1 Qh4 Rec1 Bf6 Qa8 Bd8 Rf8 Rb6 e6 Rf3 Rf4 Rb7 Rg4 Rf5 Rg3 Rb3+ Ka2 a3 Rh3 Ne2 Bb6 Ned4 Re3 Kg7 Bf7 Rf8 Bg8 Kg6 h8B R8f6 Nh7 Rh5 Bg7 Nf5 Bh6 Rf7 Rb2 Nc2 Bg7 Rf8 Rd1 Rf7 Kb1 a2+ Kc1 a1B Rb1 Bc3 Bf6 Na1 Bfd4 Bb4 Bc3 Bf8 Rh1 Nfd4 Rhe1 Ra3 Kb2 Bg7 Rec1 Rb3+ Ka2 Rb2+ Ka3 Rf6 Rh3 Rb5 Re3 Rb3+
K2Qn3/3RN1kn/1q1rB2b/3q4/Q2R2PB/1PrNpPR1/2rB1B2/2N3nb w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 a5 Kd4 h5 Kc5 e5+ d6 c6 d4 a4 g4 a3 b6 e4 b7 e3 f6 a2 f3 h4 d5 h3 g6+ Ke8 g7 Kf7 Na3 h2 Qa4 Rh7 b3 Nh6 g8N Ra6 Bc4 Nf5 Nc2 Bh6 d7 Ng7 Ne1 Ne8 d6+ Kf8 f7 Kg7 Rb1 a1R f8R Ra2 Ne2 Rc2 Rg1 h1Q Nd3 Qh5+ Rf5 Qc7 d8Q Rc3 Bd2 Nd7+ Kb4 c5+ Kb5 Ndf6 b8B Rh8 d7 Rd6 Rg3 Nh7 Rf4 Qd5 Rd4 Qcc6+ Ka5 Ba6 Ne7 Rf8 Rd1 Rf5 Bb5 c4 Nec1 Rc2 Bc7 c3 Bb8 Qe6 Bc7 Rc5 Bb8 Qa8 Bc7 Rcc6 Bc4 Qg6 Be6 Qb7 Nb2 Bf1 Nbd3 Qa8+ Kb5 Bg2 Ba5 Rc7 Be1 Bh1 Bf2 Rd5+ Kb6 Rd6+ Qc6 Rc8 Bb4 Qa5+ Kb7 Qd5 Ka7 Qf6 Qa4 Rcc6 Rc4 Qfd4+ Ka8 Qb6 Re4 Ra2 Rd4 c2 Bd2 Rb2 Qb8 Ra2 d8B Rc3+ Nc6 Rb2 Bh4 Ra2 Ne2 c1N Qd8 Qf5 Ne7 Rac2 Nef4 Ne2 Nc1 Ng1 Nfd3 Qd5+ Qc6 Qh5 Bde1 Rc4 Nf4 Nh3 R4d3 Ng1 Qa4 Rdc6 Rd7 Qd5 Rd4 R4c5 Nfd3 R5c3 Bd2 Rd6+
1bRn1q2/n1qN1B1r/2b5/1R5r/1Br1P1PB/3pP3/2k1NN1Q/Q3nNKR w - - 0 1 legal: proof: h4 c5 d4 b5 dxc5 g5 hxg5 e5 a4 e4 axb5 e3 fxe3 Ke7 e4 Ke8 Kf2 Ke7 g4 Ke6 b4 Ke5 g6 d5 c6 h5 b6 a5 b7 f5 g7 d4 c7 a4 b5 h4 b6 h3 Ba3 f4 Bb4 f3 Nd2 a3 Rb1 Nh6 g8Q a2 Qh7 Bd7 c8R Nc6 b8B+ Qc7 b7 a1N Bg2 h2 Nf1 d3 Ba7 Ne7 b8N Bc6 Nd7+ Kf4 Bd4 Ra4 Bf6 Nf7 Bh4 Nd8 Qh5 Rh7 Rb2 Nb3 Qa1 Nd2 Bc5 Nf5 Bf6 Nb3 Rb8 Nh4 Ne3 Na5 R2b5 Qe5 Bfe7 Rd4 Bb4 Nf5 Qh4 Bb7 Qh3 Rd5 Bh4 Nac6 Kf1 f2 Bf3 Bd6 c4 Ng7 Nd1 Nf5 c5 Na5 c6 Nd4 c7 Nac6 c8N Na7 Ncb6 Bc6 Rc8 Nc2 Nc4 Bc7 Nd2 Bb8 Kg2 f1R Nf2 Ke3 Qg3 Rb1 Qh3 Rb2 Nf1+ Kd4 Qg3 Qc7 e3+ Kc4 Qd6 Kb3 Bd1 Rdh5 Ne2 Ra2 Rg1 h1Q+ Kg3 Qf3+ Kh2 Rb2 Rh1 Qf8 Kg1 Rb1 Qh2 Rc1 Qa4+ Kb2 Qa6 Ne1 Bb3 Rcc5 Bf7 Kc2 Qa1 Rc4
3Q2rb/1Bn5/B1Bqk1N1/3RBR2/bPQ4b/r1q1NN1Q/pnPrP3/4K3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 b4 Ke7 h4 g5 b6 a5 b7 d5 h6 f5 h5 a4 e6 d4 c6 f4 c7 a3 h7 a2 h6 d3 Rh2 g4 Rh4 g3 Rg4 g2 Bb2 f3 Nd2 Ra3 Be5 Nd7 b8Q Bg7 Rd4 Ngf6 Rd5 Nb6 Nc4 Bd7 c8B Ne8 Ne3 Na4 Qc7 Nb2 Qc4 Ba4 Ba6 Rg8 h8Q Nc7 h7 Qd6 Rc1 Kd8 e7+ Kd7 e8B+ Ke6 Bc6 f2+ Kd2 Bf6 Nf3 g1B Bg2 f1Q Bh1 Qh3 Ke1 Bh2 Qd2 Bf4 Qdc3 B4g5 Rd1 Rg7 Qd8 Rg8 h8N Bg7 Ng6 d2+ Kf2 B5f6 Rf1 d1R Bg2 Rd2 Ke1 Bh8 Q3d3 Qg4 Bh1 Qd4 Qf5+ Kf7 Qh3 Qc3 Ng5+ Kg7 Bcb7 Na8 Ra5 Nc7 Bhc6 Qb3 Rf5 Qc3 Bf4 Be7 Rad5 Bf6 Nf3 Kf7 Bh2 Ke6 Be5 Bh4+
1Q4q1/1q3n2/r2NnRBr/2Q1pQB1/1P2P1NR/nK1kP1bB/1R3b2/b2B4 w - - 0 1 legal: proof: h4 b5 c4 g5 hxg5 d5 cxd5 b4 f3 b3 axb3 Bd7 b4 Bf5 b5 Be4 fxe4 Bg7 Qc2 Bh6 Qd1 Bf8 d4 Kd7 Kd2 Kd6 Kc3 c5 g4 f5 b4 h5 b6 a5 g6 e5 b7 h4 g5 h3 g7 a4 g6 c4 Na3 f4 Rb1 f3 Qc2 f2 Nf3 h2 Nb5+ Kd7 d6 Kc6 d7 a3 Bg5 a2 Bh3 f1N Rb2 a1B Nd6 Na6 b8Q Nh6 g8B Ne3 g7 Nf7 Bh7 Nc5 g8B Ne6 Bg6 Rh6 Qc8+ Kb6 d5 Ra6 Rf1 h1Q Nh2 Qg1 Ng4 Qe7 d8R Qb7 Rf6 Qg2 Qc1 Nc2 Qf1 Na3 Qf5 Nb5+ Kc2 c3 Kb3 c2 Re8 c1B e3 Be7 Rd8 Bd2 Qc1 Na3 Qc4 Ra5 Qc5+ Ka6 Rb8 Be1 Rf8 Bg3 Re8 Nfd8 B8f7 Bf2 Rh8 Qg3 Be8 Nf7 Ba4 Qg2 Ne8 Qg3 d6 Qg1 d7 Qg3 Qc3 Kb6 Nd6 Ra6 Bb5 Qg2 Be2 Bg3 Bd1 Bd8 Nc8+ Kb5 Qc7 Be7 d8Q Bf2 Qdd6 Bg3 Qb8 Bf2 Ka2 Kc4 Qc5+ Kd3 Nd6 Qb6 Bh4 Nfd8 Bf7 Qc7 Rg6 Rh5 Kb3 Rh7 Nh2 Qb7 Rh6 Qg6 Ng4 Qg8 Rg6 Bg5 Rf6 Bf4 Bg5 B4g3 Bh5 Nf7 Bg6 Rg7 Rh6 Rh7 Rh4 Rh6
1r1kN3/R4n2/1n3RKN/3PQQBQ/b1N1Bbp1/Pb1nr3/N2PqR2/7q w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 e5 Ke3 g5 Ke4 c5 f4 b5 h4 b4 a6 b3 f6 c4 f5 b2 h6 c3 f7+ Kd7 h5 c2 f6 Qe8 Kf5 e4 h7 e3 h6 e2 a7 e1N Qh5 g4 Ne2 Qe5+ Kg6 Be7 f8Q Qc3 f7 Bb4 Na3 b1B Nc4 Ba3 Bg2 Qd4 Bb2 c1Q+ Be4 Qf2 Bf6 Bb2 Bg5 Qc3 Rh2 Qcf3 Nc3 Q2e2 Rf2 Qh1 Rf6 Ba6 Qc8+ Ke7 f8R Nd3 Qf5 Bb5 R8f7+ Ke8 a3 Bd7 Na2 Bc2 Rf1 Bb3 Rf2 Bda4 Rb7 Nd7 Rc7 Rd8 a8N Be5 Ra7 Rb8 Nc7+ Kd8 Ne8 Ne7+ Kf7 Nc8 Kg6 Rf8 h8N Nd6 h7 Bf4 Nf7+ Ke7 Ra6 Nb6 Nh6 Kd8 h8Q Rf7 Ra7 Re7 Bf3 Re3 Be4 Rc8 Qh7 Rb8 Qe5 Nbc8 Qf7 Nb6 Qfe6 Nf7 Q5f5 Rg3 Qee5 Re3
4bQRR/kr2Nrb1/1R4q1/n1PQ1BQ1/4p2n/KnBP4/1P4NN/qb3R2 w - - 0 1 illegal: No proof kernel
1r2B1Nb/1Q6/qBN1R3/2Pnr3/1Pp4n/Nr1P1KB1/knqR1QB1/5b1R w - - 0 1 illegal: No proof kernel
N1q3Br/1bR3Br/1B2n3/pQN4Q/4NP2/1qnQPK2/1kr2PR1/2bbB3 w - - 0 1 illegal: No proof kernel
BN2b2b/KRB4k/1q1r3P/1b3p1Q/QrnPNR2/P2N2B1/3n2rQ/1Q4q1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 g5 Ke3 b5 Kd4 f5 e4 Kf7 h4 Kg7 a6 b4 a7 g4 e6 b3 d6 b2 Kc5 g3 d4 g2 e5 c6 a3 Nh6 e7 Be6 e8Q Bb3 e6 Be7 Nc3 b1B Nge2 g1R Bf4 B1c2 Ne4 Qd7 Kb6 c5 Bg3 c4 Rb1 c3 Nc1 Qc8 d7 Bf6 d8B Rg2 e7 Qd7 Bdc7 Bf7 Nd3 Ng8 h6+ Kh7 h5 Ba4 Rh4 c2 Rf4 c1Q Be2 Nc6 Bf3 Rc8 a8N Na5 Ka7 Qdc6 Nb6 Bb5 Nd7 Rd8 Nb8 Rd6 Rb4 Qa1 Qb1 Nc4 Qd7 Bg7 e8Q Nf6 Qe5 Rd8 Rb2 Bh8 Qde8 Ba4 Rb7 Bg6 Qa5 Bb5 Qe5 Be8 Qa4 Kg8 h7+ Kg7 Qh1 Qg1 Qh2 Kh6 Qc5 R8d7 Qcb4 Rg7 Qb1 Rb2 Nef2 Ne4 Bg2 Ned2 Ne4 Rg8 Bf3 Kg7 Bh1 Rb4 h6+ Kg6 Bf3 Bg7 h8Q Be5 Qf6+ Kh7 Qfh4 Bh8 Qh5 Rg7 Nc3 Re7 Bd5 Re2 Ne4 Rg2 Rb6 Qc5 Ba8 Qc6 Rb7 Qb6+
4N1qR/2N1Q3/5PB1/1qBP1R2/1Q1p4/1b1BbPnr/q2Nrk2/QK1n1B1r w - - 0 1 illegal: No proof kernel
1k6/2q2n2/3pBB1B/qrq1Rn1Q/2bb3b/1RN3P1/1K2PPQN/QR2r2Q w - - 0 1 illegal: No proof kernel
r1B2rQ1/2n4b/qP3k1P/nNB4P/1p2RB2/5QQ1/2qbNQr1/NnR4K w - - 0 1 illegal: No proof kernel
3N3B/6N1/rp3KBb/RP1qbnrR/1Pk4B/6Qn/1RN1PQ1q/b3N1n1 w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 b4 h3 gxh3 Bd7 h4 Ba4 h5 Bb3 axb3 Qd7 Bh3 Qe7 Bf1 Qd8 Kf2 Ke7 Ke3 a5 Kd4 f5 h4 g5 e6 Kd6 e7 a4 e8N+ Ke7 Ke5 c5 d4 a3 d6+ Kd7 d5 g4 b5 f4 h6 b6 b4 g3 h7 c4 h5 g2 h6 c3 Ng7 c2 Nf3 g1N Qd4 a2 Na3 Nh3 Qf2 Ne7 Ne1 f3 Bg5 c1B Bg2 Nbc6+ Kf6 Rg8 h8R Ne5 h7 Bb2 Bh4 Ra6 Nac2 Bd4 Qg3 f2 Be4 f1Q+ Qf2 Bc3 Bg6 Qg1 Rb1 a1B Rb2 Qh2 Rg1 Kc8 d7+ Kc7 Rh1 Qa8 d8N Nf5 d6+ Kd7 Rg1 Qd5 Rg3 Bd4 Ra3 Bc3 Ra5 Nf3+ Qd4 Nfg1 Qe5 Bd2 Qg3 Bf4 Qf2 Kc8 d7+ Kc7 Qg3 Kd6 Nde6 Qb7 d8Q+ Qd7 Qc8 Kd5 Nd8 B4d6 Qb7+ Kc4 Qbf3 Bc7 Qff2 Qd5 Nge6 Bh6 Ng7 Re8 Rf8 Re4 h8B Rg4 Re8 Bd6 Re5 Rg5 Rba2 Ne3 R2a4 Rg4 Ra2 Bb8 Rb2 Bc7 Rh5 Rg5 Ra2 Nf5 Ra5 Be5+
5K1N/2rb2R1/P7/Nq1R1N1B/1Q1q1P1P/b1r1Nnp1/nBBQ2n1/3Rr2k w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 g5 f4 b5 d4 e5 a4 c5 h4 b4 a6 c4 f6 g4 f7 g3 h6 b3 a7 b2 h7 c3 a5 c2 Nc3 b1N Qd2 Bb7 Kf5 e4 Kg6 e3 Bd3 e2 Bb2 c1R Nf3 e1Q Nd1 Rc6 Ne3 Be7 Kg7 Qe2 f8Q Nd7 Bc2 Ngf6 Rd1 Rac8 a8B Ne5 a6 Nfg4 Ra5 R8c7 Rb5 Bc8 Rb7 Kd7 d6 Ke6 d7 Ba3 Qfb4 Re8 h8N Qb5 Ra7 Rc5 d5+ Kd6 Nd4 Nf3 Bc6 Nc3 Ba8 Re4 Rb7 Qf6+ Kg8 Re5 d8N Bd7 N8c6 Na2 Na5 Re7 Ra7 Qe5 Kf8 Qe4 Qb3 Rc3 Ndf5+ Kc5 d6 Qd4 Bd5 Re5 Bf7 Re4 Nf1 Re1 Bh5 Ne3 Qb4+ Kd5 Rb7 Ng2 Ra7 Qbd3 N1e3+ Ke4 Rb7 Bb5 d7 Ba4 d8R Bd7 Bb3 Qb5 Ra7 Bc6 Rd5 Bd7 Be8 Ng1 Bc2+ Kf3 Qd3 Kf2 Bh5 Nf3 Qd2+ Kg1 Rb7 Kh1 Ra7 R7c5 Rb7 Bc8 Rf7 Rc7 Rg7 Bd7
2Q1qR1n/1r3b1P/3Q3P/NqBRP3/4BB1Q/3r1nR1/k2pb2n/1N2bR1K w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg2 Ke6 h4 a5 b4 d5 e4 f5 c4 g5 h6 f4 c6 g4 h5 a4 b6 a3 b5 a2 h7 d4 c5 d3 c7 g3 h6 d2 b7 Qg5 b6 Nd7 b8Q Bd6 b7 Ngf6 c6 Ra3 Bd3 Ng4 Rh3 f3+ Kh1 f2 Qe1 f1B Nf3 Nh2 Bc2 Rc3 Ba3 Be2 Bc5 Nf8 Qf2 Bd7 c8Q Ng6 c7 Rd3 Qd4 Rf8 Qa4 Nh8 Nd4+ Ke7 e6 Be8 Rh5 Bf7 Nb3 Re8 Na5 g2+ Kg1 Kf6 e7 Ke5 Qc4 Rd8 e8R+ Be7 Rf8 R8d7 Rh3 Qh5 Rg3 Bh4 Rd8 Re7 Rd4 Rd7 Rd5+ Ke6 Kf2 g1N Kg2 Ngf3 Kh1 Qg6 Qe8+ Re7 c8R Qg8 Qea4 Qe8 Qab4 Qb5 Rf8 Qe8 Qf4 Rc7 b8B Rb7 Qg5 Qb5 Bf4 Qe8 Rh3 Be1 e5 Qb5 Qh4 Qe8 Nc3 Qb5 Rb1 a1Q Rg3 Qaa4 Rc1 Qe8 Nb1 Qab5 Rd1 Bf2 Rdg1 Be1 Rf1 Kf5 Bce3 Ke6 Rd7+ Rd5 Qc8 Rd6 Rd8+ Rdd7 Qbe7+ Kd5 Bc5 Rd6 Nc6 Kc4 Be4 Kb3 Na5+ Kb2 Rd7 Rd4 Rd5 Ka2 Qd6 Rd3
N1R5/BN3QpB/3qR1r1/1Nnnb1P1/PQ3rB1/1b3qR1/4nP2/k2rK1N1 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 h5 e4 h4 exf5 h3 Qh5+ Kd7 Qh7 Ke8 Nxh3 Qd6 Ng1 Qd8 g4 Kf7 h4 Kf6 d4 b5 a4 e5 g5+ Ke7 a6 Kd6 h5 c5 f6 c4 f7 e4 h6 e3 a7 e2 Be3 c3 Bh3 b4 Ra3 c2 Qf5 c1N h7 b3 Nc3 b2 Bg4 b1Q Rh6+ Be6 Nb5+ Kd7 d6 Kc6 d7 Na6 Qf6 Bd6 f8Q Kd5 Q6f7 Kc4 d5 Be5 d6 Qb3 Bc5 Qc7 d8N Qf3 d7 Ne7 Nb7 Nd5 d8N Qd6 Rb3 Rc8 a8B Rc6 Ba7 Nc5 Rd3 Rg8 h8R Kb4 Q8e7 Rf8 Re3 Rb6 Rh3 Kc4 Rg3 Ra6 Re4+ Kb3 Re3+ Ka2 Re4 Bd7 Ne6 Ka1 Nec7 Bf5 Re3 Bc2 Re4 Bb3 Re3 Bd4 Qe4 Be5 Qb4 Bf6 Re6 Be5 Qg6 Rf4 Rc8 Rb6 Qf7 Rc6 Nd8 Ra6 Bc6 Rb6 Nb7 Ra6 Na8 Rb6 Kd2 e1R Bd7 Ne2 Bf5 Rc1 Bh7 Rc2+ Kd1 Rd2+ Ke1 Qc7 Ree8 Rg6 Bg4 Qd6 Re6 Rd1#
q4n1k/BNQbBp2/B1Nn2R1/1q3rbP/1P1R4/1bRNP2Q/K7/1r2Br2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 Kc3 g5 Kb3 d5 c4 g4 h4 a4+ Ka2 d4 b4 d3 c6 d2 e3 g3 c7 g2 c5 a3 h6 Bg4 c8Q Nf6 h7 Bh5 c6 Bh6 b6 Kf8 c7 Kg7 b7 Qg8 e6 Bf4 e7 Nc6 b8B Be2 e8N+ Kh6 h5 Nd4 Qh3 Qg6 c8R Bb5 Nc3 Bd7 Nd6 Kg7 Qc2 d1B Ba7 Bh6 Nd5 Ne8 Ne7 Qg5 Ne2 g1R Nc6 Ne6 Nb7 Nd6 Nf4 Qb5 Bd2 Rg8 Be1 Nf8 Nd3 Bg5 h8B+ Kh7 Be2 Rf1 Bf6 Rb8 Be7 Kh8 Qc4 Rg7 Rg1 Bb3+ Kb1 a2+ Kb2 Rf4 Rd1 Rf1 Qc5 Ra8 Qb6 Rg6 Qc7 Rgf6 Rg2 R6f5 Ka3 Bf6 Rg6 Bh4 Rd8 Bg5 Rc1 Bd1 Rc2 a1Q+ Kb3 Qaa6 Kb2 Rc8 Rc3 Ba4 Ka2 Qaa5 Bb8 Qa8 Ba7 Bb3+ Ka1 Kh7 Nb2 Bh4 Rc4 Kh8 Qa5 Qd5 Nb8 Bg5 Rc1 Be6 Ba6 Rc2 Nc6 Nc4 Qc7 Qb5 Rd4 Nd6 Nd3 Rb2 Rc5 Bd7 Rc3 Rc2 Kb1 Rc1+ Kb2 Rb1+ Ka3 Bd1 Ka2 Bb3+
3B3r/2R1PRR1/Nb2N1n1/1Qb3PB/b3p2K/qn2P1N1/q1r1R1Q1/r1k4B w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 c4 d5 cxd5 e4 a4 Qd6 axb5 Qe5 fxe5 Bb7 Qb3 Ba6 Qd1 Bc8 Kf2 Ke7 Kg3 a5 b4 h5 d4 f5 d6+ Ke6 g6 Kd5 d7 Kc4 d8N c5 b6 a4 b5 f4+ Kh4 a3 g4 f3 d5 f2 b7 a2 g7 Be6 b6 Bf7 d6 Nf6 g8B Ra3 d7 Bh6 e6 Rc3 Bg5 Nh7 e3+ Kb4 Ne2 c4 Ng3 Na6 b8Q Nf8 b7 Rc2 Qd2+ Kb3 Rg1 Kb2 Na3 c3 Nb5 Be8 Bg2 f1R Bh1 Nc5 Qg2 Nb3 Re1 a1B Re2 Kc1 Bf7 Rd1 Nc7 Ng6+ Kh3 h4 Na6 Re1 Qe5 Bb2 b8R Bf8 Qb5 Bc5 Rc8 Bba3 Rc7 Bb6 Bf6 Bac5 g5 Rd1 Rf1 Re1 Kg4 h3 Be7 h2 Rf4 Nf8 Bh5 Ng6 Rf7 Rg1 Nc6 Rd1 d8R Re1 Nd4 Rd1 Qd3 Ba4 Rg8 Re1 Bd8 Rg1 e7 Re1 Qg1 Rd1 Bg2 h1Q Rgg7 Qh2 Qb5 Kb2 Qf1 Rcd2 Nb4 c2 Re1 c1Q Na6 Kb1 Ne6 Qa3 Bh1 Kc2 Qf2 Ra1 Qg1 Qf2 Qg2 Re2 Rb1 Rd2 Rb2+ Kc1 Kh3 Rd3 Kg4 Rc3 Ra2 Qc2 Kh3 Qb1 Re2 Qba2 Kg4 Rc2 Kh3 Nf4+ Kh4 Ng6+
R1R3N1/RqR1Pn1k/1P2NpN1/1Qb1Q1r1/3P2B1/B1r5/2Q3b1/1Knn1b1q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 a5 Kd2 h5 Kc2 c5 b4 f6 e4 Kf7 g4 Kg6 b6 h4 b5 a4 d6 a3 e6 c4 e5 a2 d7 c3 e7 h3 e8Q+ Kh7 g6+ Kg7 b7 h2 e6 Rh6 g5 Rh7 b6 Ra5 e7 Nc6 b8Q Ra6 Ne2 Ra5 Na3 Qc7 d8R Na7 Nb5 Bh3 Rc8 Qb7 Nf4 Nh6 Nc7 Nb5 Be2 Bf1 Bg4 Nf7 Ba3 Rh3 Nce6+ Kg8 g7 Kh7 g8R Bh6 Kc1 c2 Qe5 Nc3 Q8b5 Rg3 Rg1 h1B Ng6 Bhg2 Ra8 Re3 Rgc8 Rd3 Kb2 c1N Qda4 Nd1+ Kc2 Bh3 Rg3 Rb3 Rgc3 Bhg2 R3c7 Re3 Rb1 a1Q Rb2 Rh3 Ra2 Qc3+ Kb1 Qe1 Qab3 Rc3 Qc2 Qh4 Ra7 Qh1 Ngf8+ Kh8 g6 Bd2 g7+ Kg8 Ng6+ Kh7 g8N Bf4 Qee4 Bd6 Qee5 Bc5 Raa8 Ra4 Bb2 Rac4 R2a7 Rg3 Ba3 Rcc3 Bh3 Rg5 Bf5 Rcg3 Bg4 Rc3
2k2B1Q/4p1rB/3RnK1N/1qNb4/1bP2nRP/R1QbP3/4B1rR/2q2q1Q w - - 0 1 illegal: Other
Q4q2/r3pB1b/1R1r2PP/nRn3qN/1B1bKQ1b/5P2/B2RQ3/1N2q1Bk w - - 0 1 illegal: No proof kernel
1B1NK3/n1RPB1b1/8/nRP3QN/p1R3bq/Nn2N3/2QPrr2/q1qB2k1 w - - 0 1 illegal: No proof kernel
1Q1RR1r1/K1nP2Q1/QPN1bq2/bp4RN/1b1BQP2/3n4/1q1r4/Nk1r3B w - - 0 1 illegal: No proof kernel
4K3/1rqpqnNQ/1P4R1/1bR5/r1BQP3/2RP1RQ1/B1b3nr/1qBN3k w - - 0 1 legal: proof: b4 h5 f4 e5 fxe5 b5 g4 Be7 gxh5 Na6 a4 Kf8 axb5 Qe8 b6 Qd8 c3 Nb8 b5 Bb4 cxb4 Ke8 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 Kf5 g5 h4 a5 e4+ Kd4 b7 c5 b6 c4 e6 g4 e7 f6 Kg6 g3 Kf7 f5 e8B g2 b5 c3 h6 f4 h7 c2 h5 f3 h6 a4 Nh3 g1Q Nc3 a3 Bc4 a2 Ng5 f2 Rh5 Na6 b8R f1B b7 Nb4 b6 Ra4 d3 Be2 Qe1 Nd5 Nd1 Nf4 Qg3 Ng2 Kf8 Qc7 Bef7 Qe1 Rb1 a1R Rb3 Qb4+ Ke8 Ra7 Bfe6 R1a4 Rc3 Qbc5 Ra8 Q5e5 b8R Ba6 Rc8 Rb7 Rh3 Bb5 Ba2 Qed6 Beb3 Qb4 Bc4 Qb1 Ra5 Qd6 Rc6 Qf6 Ba3 c1Q Bb2 Qcf4 Bc1 Qc7 Re6 Qg7 Rg6 Bh5 Qe3+ Ke5 Ne6 Qf6 Ng7 Qh4 Nf2 Bd1 Rf3 Bc2 Nd1 Qf6 Qg1 Qg5 Re3 Kf4 Rf3+ Kg4 Qe1 Ba6 Rc5 Bb5 Rf2 Kg3 Rf3+ Kh2 Qf2 Kh1 Qg3 Nf6+ Ke7 Rha8 h8Q Ne8+ Kf8 R8a7 h7 Nd6 Qg8 Qh4 h8Q Nf7 Ke8 R7a6 Bab3 Ra2 Qgh7 Rb2 Ba2 Ra4 Bh6 Qf6 Bc1+ Nh4 Be3 Bb3 Ne6 Rh2 Bc1 Bc2 Q8g7 Qg5 Qd4 Ng2 Ng7 Qe7+
b1r4k/B1P2K2/RbB2P2/N2QN1nN/R1pR2BP/7q/Q3rq2/bq3nN1 w - - 0 1 illegal: No proof kernel
bRNb1rq1/B1Pr4/2P2n2/1n1N1B1K/2RQ2N1/P1Q3Rp/Q1R5/b3q1qk w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 Kf7 Kf3 e5 Kg4 d5 f4 b5 c4 h6 g6+ Kf6 g7 d4 a3 e4 a6 d3 a7 d2 c6 e3 c5 b4 c7 b3 c6 b2 Kh5 e2 g4 e1B g5+ Kf7 f6 Ke6 f5+ Kd5 f7 Ke4 f6 Bf5 g6 Rh7 Rh4+ Ke3 Ra2 Kf2 Nf3 Bd7 Bh3 Be7 f8R Na6 f7 Nb4 Nh2 Kg1 Nc3 b1Q Rc2 Nd5 Rc4 Kh1 Bf5 Bc8 Ng4 Bb7 Re8 Rb8 f8Q Ba8 Qf6 Qb6 Bb2 Qg1 Qa1 d1Q Qd4 B7h4 Re3 Qf8 Rg3 Bd8 Bc1 Rc8 Be3 Bd2 Bf2 Qde1 Qa2 B2g5 Qb2 Bgf6 Qb4 Nb6 Nd5 Na4 Qbd2 Nc3 Be3 Bb7 a8R Nb5 Rb8 Ba8 Q4c3 Be5 Ba7 Qe8 Qdd4 Nf6+ Kh4 h5 g8Q Re7 g7 Rd7 Qf7 Qf8 g8N Qe8 Kg5 h4 Nge7 h3 Kg6 Ne4 Kh5 Qg8 Qb2 Bg7 Qa2 Bf6 Qg7 Be5 Qf2 Bb2 Qc3 Ba1 Qfd4 Nf6+ Kh6 Qe2 Nb6 Qee1 Ned5 Be7 Qa5 Qg2 Qac3 Rf8 Nc8 Qgf1 Be6 Qg1 Bf5 Qh8+ Kg5 Bd8 Kg6 Qg8+ Kh6 Ne8 Kh5 Nf6+
2RQBB2/2PN1qP1/1K1pQ1qb/4QR2/3R2N1/rb1B3R/2rP3b/1k2nn1q w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 hxg5 c4 exf5 c3 bxc3 Nf6 c4 Ng8 c5 Bg7 Nf3 Bh6 Ng1 Bf8 Ke2 Kf7 Ke3 e5 c4 h5 g4 a5 f4 e4 Kd4 a4 g6+ Kf6 g5+ Kg7 b6 h4 c6 a3 c7 h3 b7 a2 c5 h2 c6 e3 Na3 e2 Nf3 e1Q Qb3 Qee8 Ne5 Qde7 Nac4 Qb4 Ba3 Be7 Bd3 Bd8 Ng4 Qbe7 Nce5 Q7f7 Kc5 Nh6 Qe6 Na6+ Kb6 Nb4 b8Q Nc2 Bb4 Ne1 f6+ Kg8 g7 Ra3 f5 Kh7 Bf8 d6 Nd7 Ba6 Qe5 Bc4 Qc8 Bb3 g8R Qg6 f7 Qe7 f6 Nf5 Rc1 a1B Rc4 Ng3 Re4 Qe8 Rd4 Be7 Qd8 Nf1 c8B Bb2 Bca6 Bc3 Bab5 Ba1 Bh6 Bf8 Qc8 Bg7 f8Q Qf7 Qfe7 Bb2 Q7e6 Bc3 Qc7 Bb2 Ra8 Rc8 Qd8 Rc7 Rc8 Ba1 Rg1 h1Q Rg3 Bf8 Bg7 Bc3 Bh8 Bh6 Bg7 Qge4 Rh3 Kg6 Bf8 Qf5 Qh2 Bb2 Rb4 Be5 Rd4 Bg3 Qhe2 Bh2 Q2e5 Rca7 c7 R7a5 Ba4 Rc5 Nb8 Qfe4 Be8 Rc2 Nd7 Qf5 Rg3 Kh5 g6 Kg5 g7 Qg6 Qe2 Qf4 f7+ Qff6 Rd5+ Kf4 Rh3 Qe7 Rhh5 Qef6 Q2e5+ Kf3 Rd4 Qff5 Be4+ Ke2 Bd3+ Kd1 Rh3 Kc1 Be7 Qfe4 f8R Qd5 Rf5 Kb1 Bf8 Qdf3 Rg5 Qff6 Rf5 Qff7
R1Qr4/K1pbrB2/PQn1r1P1/4n3/RP3B1q/1N4b1/N3kN1Q/Rbq4N w - - 0 1 illegal: No proof kernel
1B1r1b2/2p1q1nq/P1PNNPQ1/4R3/1nNb1b2/1R4RN/1QB1nr2/3K1B1k w - - 0 1 legal: proof: g4 d5 e4 a5 exd5 g5 b4 f5 bxa5 Bd7 h3 Bb5 gxf5 g4 Ba3 g3 Bb2 Be2 Bc1 Bg4 hxg4 Qd6 Rh4 Qd7 Rh1 Qd8 d4 Kf7 c4 Kf6 a4 e5 f4 h5 g5+ Kg7 f6+ Kg6 f5+ Kf7 a6 b5 d6 e4 d7 h4 a5 b4 a7 g2 a6 h3 d5 h2 c5 b3 d6 e3 Na3 b2 Nc4 b1N Qb3 e2 Qb2 Nd2 Nh3 g1B Rb1 Ne7 g6+ Kg8 g7 Kh7 g8R Kh6 f7 Kh5 f6 Kh4 Rg3 Qe8 d8Q Nf5 d7 Ne4 Be3 Qe7 Qe8 Nc3 d8N Nc6 Nb7 Rd8 a8B Nb4 Nbd6 Ng7 Be4 Rg8 Kd2 e1B+ Kc1 Bgf2 c6 Ne2+ Kd1 Bd2 Ba7 Bf4 Bc2 Bd4 Bb8 Rh8 Rhg1 h1Q Rg5 Qhe4 R1g3 Rh5 Re5 Qh7 Qc3 Rf5 Rb3 Bfe3 Qb2 Rf2 Qd7 Bd2 Qf5 Bf4 Rge3 Rf3 Qd3 Kg3 Qg6+ Kh2 Red3 Nh5 Rdc3 Rf2 Rg3 Bg7 f8N Kh1 Ne6 Bf8 Ra3 Ng7 Rad3 Qd7 Rb3 Qe7
1QR2R2/1PNqr1k1/BQn5/1b4NK/1QPrrB2/BpbN4/1N2Pn2/1b4q1 w - - 0 1 illegal: No proof kernel
N2qQ3/1P3R2/1Qq2RnN/3N1r1p/PbBQ4/2B1Qr2/1P2nn1b/1k1b1K1R w - - 0 1 illegal: No proof kernel
Q3qr2/BP1k4/1bn1b1R1/Q3P3/1QKN4/1RRnrPNB/1pNq4/1b2r1R1 w - - 0 1 illegal: No proof kernel
Q1N3Bq/1PRbn3/3bnp2/3NPrk1/R3b1B1/3q1nB1/1N2PBr1/4QQ1K w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 g4 c5 Kg2 a5 b4 h5 d4 h4 d6+ Ke6 d5+ Kd7 g6 f6 g7 a4 b6 a3 b5 c4 b7 a2 b6 c3 g5 c2 g6 Ra3 Nh3 Rd3 Nf2 Nc6 b8B Qe7 b7 Rb3 Ba7 Nb8 Bf4 c1Q Nd3 Ra3 Nc3 Qb1 Bg3 Rh5 Qe1 Nc6 Nb2 Rf5 Baf2 Qd3 Kh2 Rb3 Bh3 Qd8 Bg4 Nge7 g8N h3 g7 Nd4 Rf1 Nf3+ Kh1 Ke8 d7+ Kf7 d6 Kg6 Nd5 h2 Rg1 Qe8 d8Q Bd7 Qa8 Kg5 Rc1 a1N Rc7 Nc2 Rg2 Ba4 d7 Ncd4 d8Q Bd7 Qaa1 Ra3 Qa8 Ne6 Qf1 Qh5 Qae1 Qh8 Rg1 Nc6 Rg2 Bd6 Nge7 Rc3 Nc8 Ne7 g8B Rc4 Bh3 Rh4 Bg4 Rh7 Ba7 Rg7 Rf2 Nfd4 Rf4 Nf3 Ra4 Rg6 Kg2 h1B+ Kf2 Rh6 Rf4 Nd2 Kg1 Rh2 Baf2 Bg2 Ra4 Be4 Bh7 Rg2+ Kh1 Kh6 Bg8 Nf3 Bh3 Kh5 Bg4+ Kg5+
3k2n1/BP2n1qq/RPpq3n/3r4/2b1QBP1/2KR2BB/N1Q2N2/2b1rQ1N w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 e5 b4 a5 d4 h5 Kd2 h4 g4 a4 b6 e4 b7 a3 b5 h3 f6 c6 f5 e3+ Kc3 a2 f7+ Ke7 d6+ Kd7 d5 h2 g6 e2 f6 e1N g7 Nf3 Ne2 Qb6 Qc2 Rh5 Ng3 Nd4 Bh3 Rh8 Bf4 Ne7 g8N Bh6 f8Q Ra6 f7 Qd8 Rd1 h1Q Rd3 Qc1 Nh1 Qe8 Nf6+ Kd8 d7 Rg8 Ne4 Qd1 Nef2 Rg5 Qh8 Rh5 f8Q Ndf5 Qd4 Ra5 Qf7 Qg8 Qe4 Qh7 Bg3 Bc1 b6 Na6 Bb8 Nh6 Ba7 Neg8 Qff3 Be3 Qg2 Re5 Qf1 Ke7 d8B+ Kd7 d6 Nc7 Qf4 Bc1 Bg5 Re1 Qe4 Rd5 Bf4 Kd8 Bg3 Be6 d7 Ne8 Bf4 Ng7 Bg3 Ngf5 Bf4 Ke7 d8B+ Ke8 Bdc7 Nfe7 Bg3 Bf7 Bcf4 Kd8 Kc4 Qd2 Nc3 Qd1 Rb1 a1Q Na2 Qag7 Ra1 Rd4+ Kc3 Bb3 Nb4 Bc4 Ra6 Rd7+ Qd4 Rd5 Na2 Qf3 Qe5 Qe3 Qd4 Qe6 Qe5 Qd6 Qd4 Qgg6 Qe4 Qgg7+
4NQ2/1pN2b2/2Nr2R1/3RPqNk/QQnP3b/B1Pq2Bq/1rBr4/2nK4 w - - 0 1 illegal: No possible last move
K4Nn1/PR3Q2/3nB2b/3r1R1q/3p1PQ1/kbN5/1rPNB3/Bq2nBQq w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Kc3 e5 Kb4 Ke7 Kb5 d5 h4 b6 f4 e4 a4 e3 a6 e2 h6 e1N f6+ Kd7 h7 d4 f7 g4 a7 g3 a5 g2 c6+ Kd6 a6 Bh6 f8N Ne7 c7 Rg8 h8Q Rg4 h5 Nd3 Nc3 Rg7 Rb1 Rf7 Qg7 Ng8 Nf3 g1Q Bb2 Qh4 Ba1 Rd7 Nd2 Ne1 Qf7 Nc6 Qg4 Rb8 a8B Ne5 a7 Nc4 Bf3 Qg2 Rh3 Qh1 B3e2 Rb7 Ka6 Kc5 Re3 b5 Re5+ Rd5 Rf5 Be6 c8B b4 Qg1 b3 Rb2 Bg7 h6 Kb4 h7 Nd6 h8Q Ka3 Qhh5 Bh6 Qhg4 Qh5 Rb1 b2 Bd7 Rb4 Bc8 Nb5 Kb7 Nd6+ Ka8 Rbb5 Rc1 b1Q Rd1 Qa2 Rb1 Rb7 Rb2 Qb1 Rb4 Re5 Rb6 Bb3 Be6 Rd5 Rc6 Ba4 Rc7 Rb2 Rb7 Bb3
q2b2KN/Pq5Q/2Qrb1n1/2r2P2/1N2R2B/p3brB1/Q1N1n1RP/Q2B3k w - - 0 1 illegal: No proof kernel
2Q5/P1bN1n1k/Q3prq1/RN1nBR1B/P7/P2q1bQ1/1Q1r1K2/1r3NBb w - - 0 1 illegal: No proof kernel
7R/PN1Nr1Q1/P2K1r1Q/P4r2/1k1B1Qbb/N3p1qb/3qB1R1/B1nn2Q1 w - - 0 1 illegal: No proof kernel
1B2NqnQ/1b2r2Q/1nPQB1PB/kNB1n2p/1R2K3/r3nP2/1n3R2/4bN2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Ke3 Kd7 g4 Kc7 b4 h5 c4 a5 b6+ Kb7 f6 Ka6 c6 e5 b7 e4 c7 a4 c5+ Ka7 b5 a3 c6 Kb6 g6 a2 g7 Be6 c8N+ Ka5 b6 Ra7 f7 Na6 b8B Be7 f8B Bb4 f3 Nc7 g5 Rb7 g6 Qe8 Nc3 Na8 Rh4 Re7 b7 Nb6 Nd6 Bc8 Ncb5 Be1 Bc4 d4+ Kf4 d3 Ne2 e3 Ng3 e2 Nf1 d2 Be6 Rh7 Ke4 Qf7 Rb1 a1N Ne8 Nc2 Rb4 Ne3 Rh2 Rh8 Rf2 Qf6 Qb3 d1N Qd3 Nb2 Qd6 Qf7 Ba7 Rh7 b8Q Bb7 Qbd8 Bc3 Q8d7 e1N Bb8 Ned3 Q7c7 Be1 Bd2 Nh6 g8Q Ne5 Qh8 Ng8 Bh6 Qf6 Bc3 Qf8 Bd4 Rd7 Bc5 Rhe7 Qd2 Rd3 Qd7 Ra3 Q2d6 Rf7 Q7e7 Rf6 Qeg7 Rf7 Qgh7 Re7
bR1r2R1/bb3Nqp/1B3NR1/2n4r/2R1Pb2/1P1Q4/1k2bKBP/Nn1B1Q2 w - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 c5 fxg5 b5 Qd2 c4 Qd1 c3 bxc3 b4 Nh3 b3 axb3 Ba6 Ng1 Bc8 e4 Ke7 g4 Ke6 c4 a5 c5 f5 c4 d5 c6 a4 g6 a3 c7 a2 g5 d4 c5 d3 c6 f4 g7 d2+ Kf2 f3 g6 Qe7 Nh3 Nf6 g8N Nh5 g7 Na6 Rg1 Nc5 Rg6+ Nf6 Bg2 Bb7 c8R Ra5 c7 Ba8 Qf1 d1B Na3 Be2 Be3 Ba6 Rc1 a1B Nc2 Bd4 Qd3 B6b7 Rb8 Qd7 c8Q Bd6 Na1 Rb5 Ne7 Rd8 g8R Ra5 Qc7 Rb5 Nd5 Qg7 Rc4 Ra5 Kf1 f2 Qc6 Rb5 Qa6 Ra5 Ke2 f1B+ Kf2 Be2 Qb5 Na4 Qa6 Ba7 Bb6 Nc3 Qb5 Bc7 Qa6 Nb1 Ng5+ Kd7 e6+ Kd6 e7 Ke5 e8B Nd7 Nf6 Nc5 Bd7 Rb5 Bg4 Ra5 Qd1 Bd6 Qf1 Rb5 Rc2 Kd4 Nf7 Bf4 Rc4+ Kd3 Ra4 Kc3 Rc4+ Kb2 B4f3 Bd3 Bd1 Ra5 Qb5 Be2 Qd7 Ne6 Qd6 Rh5 Qd3 Nc5
1nq5/2bbQ1PB/K1B2n1Q/N2PB3/P3pn1N/2QRQr2/1n6/kr1nR2N w - - 0 1 illegal: No possible last move
2N1Qb1n/2Q2PR1/4rBbK/1b1B4/pk1N4/R1Nn1r1b/R3P2P/Qb1q3Q w - - 0 1 illegal: No proof kernel
1Q1R1Rbq/N1BP1br1/3QK1N1/2BrbnPP/2Q5/1n1B1N2/kN4p1/1b5b w - - 0 1 illegal: No possible last move
8/bk4N1/Rr4K1/b2P1B1R/3q2N1/pPRbB2r/nR1BP1n1/2Qbn1NQ w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 Ke4 Kc7 d4 g5 h4 a5 b6+ Kb7 e6 f5+ Ke5 g4 h6 c4 h7 g3 e7 c3 e8N c2 h5 f4 h6 f3 d6 g2 d7 f2 Kf5 a4 Na3 Nc6 Rh3 Bb4 Kg6 Rb8 Nc4 Nf6 Be3 c1N Ng7 Ba5 Ne5 Na2 Ng4 Ncb4 Qc1 Nc2 d5 Nh5 Rf3 Qh4 d8B Bd7 Bdg5 Ne1 Bd2 Bb5 Rc3 Bc4 Bge3 Bb3 Bc5 Bd1 Bce3 Rhf8 h8Q Rf3 h7 Rh3 b3 a3 Rb1 Nd3 Rb2 Ne1 Ne5 Qd4 Ng4 Ka6 b7 Kb6 Nf3 g1B Bg2 f1B Bh1 Bf2 Ng1 Ka7 Be4 Bg2 Bf5 Bh1 Rb1 Be4 Rb2 Rg8 b8R Bd3 Ra8+ Kb7 Ra6 Nf4+ Kf7 Nfg2 Kg6 Rc8 Qe8 Qa7 h8R Qd4 Rh5 Rc4 Qe5 Rb4 Qh2 Rb5 Qh1 Rb4 Re6 Rb6 Rec6 Bg3 Rf6 Bb8 Rfc6 Ba7 Rf6 Rb4 Ra6 Rb6+
3Rn3/2N3Q1/n2bb2r/PRrR3n/6nK/1PN1N1N1/bQpP3k/Q1BB3q w - - 0 1 illegal: No proof kernel
r3q3/2r1RRbk/3Q2nP/7B/1Kb1PQ1N/3n2B1/NPbp2b1/3rBNQQ w - - 0 1 illegal: No proof kernel
2RQn2B/1Q5n/1Rnnq2P/P1kr1R2/br5Q/1B1rP1p1/7N/1Qb1B1KN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 h4 b5 a4 g5 d4 f5 h6 c5 e3 f4 e6+ Kd6 e7 c4 e8R c3 h5 f3 h7 c2 a6 g4 h6 b4 a7 b3 a5 b2 Nh3 g3+ Kg1 Nf6 Nf2 Bd7 Bd2 c1N Bc4 Qb6 Be1 Ba4 Nd2 b1R Nf1 Na6 Rh5 Nc7 Nh1 Na2 Nh2 Nb4 Bb3 Nc6 Rc8 Nce8 Rf5 Rb8 Qc2 Rd1 a8Q Rd3 Qb1 Be7 Qb7 f2+ Kg2 f1N Kg1 Rg8 h8B Rg5 Ra2 Nh7 Rc2 Nf8 Rc5 Qa6 Rb5 Nd2 Rb6 Nc4 Qa8 Kd7 d6 Nh7 Qb7+ Ke6 d7 Kd6 d5 Kc5 d8Q Ncd6 Rf6 Qc4 Rf5 Bf6 Qde7 Bb2 Qe4 Bc1 Qh4 Nf7 d6+ Qd5 d7 Nfd6 Rf1 Qe6 d8Q Re5 Rf5 Red5 Qg7 Rb7 Qgb2 Rg7 Qg2 Rg4 Qgb2 Rf4 Qg7 Rg4 Qb7 Rb4
2BN3n/1B3b2/nQ1N1Rp1/KR3P2/bQ1B1Pn1/R2bqP2/N1k3r1/b1r2B2 w - - 0 1 illegal: No proof kernel
3n1rr1/2N1R3/K1knP3/1p1N3Q/n1NP3R/2Q3R1/B2bnPQq/1rB1Q2b w - - 0 1 illegal: No proof kernel
3N2R1/1Bn1rB1Q/Pr1RnK1p/q1B4n/1P2R3/1P1b4/rk1N1bQ1/1B1n1N2 w - - 0 1 illegal: No proof kernel
1B2b1R1/3n3k/PQ4p1/rNRb3K/2q3PQ/NQN1n1N1/2rB1b1P/3bnB2 w - - 0 1 illegal: No possible last move
B1B5/2R2QPR/b2b3K/PN4p1/2Br2n1/1P1NQR1r/2n1N1kq/b2bB2n w - - 0 1 illegal: No possible last move
N1R5/B1rR1nP1/kqP2Rr1/Nn3nQN/2Q2r2/1K1b1p2/4PNBb/1B2r3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 d5 Kc3 Kd7 b4 Kc7 g4 Kb7 g6 a5 b6 f5 c6+ Ka6 g5 h5 g7 a4 e6 f4 b5+ Ka5 g6 h4 c7 a3 e7 f3 e8N h3 b7 h2 b6 d4+ Kb3 a2 c4 d3 c5 d2 c6 Ba3 Qc2 d1N Qc4 Nf6 g8B Nd5 g7 Rh7 Be3 Bh3 c8R Qd7 Nc7 N1c3 Bg2 Nb5 Nd2 Ne7 Rd1 Bf5 Nh3 a1R Nf2 Rh6 Bh7 Ra7 Na8 Qd8 Bc5 Nd7 b8Q Rg6 b7 Bb1 Qg3 Ka6 Qg5 Qb6 Rhg1 h1R b8N+ Ka5 Be3 Ne5 Nd7 Nf7 Nf6 Nf5 Nh5 Rc7 Bd4 Ka6 Bc5 Qb7 Ba7 Rh4 Rh1 Re4 Rh4 Qb6 Rf4 Ne7 Rf6 Rf4 Qd4 Bf5 Nc4 Bd3 Na5 Bd6 Qc4 Nf5 Rd2 Re1 Rd1 Be4 Rd2 Be5 Rd7 Bd3 Bg8 Ba1 Qe4 N7h6 Ka4 Be5 Ba2 Rh4 Bb1 Nf7 Kb3 Bh2 Qc4 Rf4
1BrQ3n/b1b2Pbk/n2rr3/B2b4/1p1R4/QBQ1BN2/P4NNP/3qR2K w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kf7 Kf2 g5 Kg2 Kg7 d4 b5 h6+ Kh7 d6 c5 f6 e5 a6 g4 a7 c4 d5 g3 f7 e4 f5 e3 d7 b4 d6 e2 f6 e1B Nc3 Bg7 f8B Qe8 d8Q Be6 f7 Qa4 d7 Qa6 Qc2+ Bf5 Nf3 Qa5 Ne4 c3 Nf2 Qa4 Bc4 Ne7 Bb3 Ng6 Bd6 Na6 Bb8 Be6 Be3 Re8 Rd1 Bd5 Rd4 Re6 Qd3 c2 Qc3 Bd2 Re1 c1R Kg1 Nh8 Kh1 Kg6 h7 Rd1 Qe8 Bc1 d8B Bb2 Ba5 g2+ Kg1 Rd2 Qd8 Rd3 Bbf4 Rc8 Bb8 Be5 a8Q Bc7 Qa7 Kg7 Qa8 Ng6 h8N Kh7 Bc4 Qd1 Bb3 Ne5 Ng6 Ba1 Nf4 Ng6 Qac6 Nh8 Qa4 Rd2 Qa3 Bb2 Nh1 Rd3 Kf2 g1B+ Kg2 Ba1 Nf2 Bb2 Kh1 Ba1 Qc6 Bc3 Ng2 Bb2 Rc4 Bg7 Rd4 Bf4 Rc4 Bge5 Bea7 Be4 Nh3 Bg7 Qcc7 Bc5 Nf2 Rd7 Qe5 Bd5 Qc3 Bc7 Rf4 Bcd4 B7b6 Rdd6 Re4 Bde5 Be3 Bd4 Rf4 Bc5 Rd4 Ba7
nk1N4/4BP2/4Q2P/1rQ2rK1/PNb3R1/BBqB1p2/b1rb1RR1/2nQ2r1 w - - 0 1 illegal: No proof kernel
r4krN/b1r2P1R/P2b4/1rPN1Q2/3BB1b1/1n3B1n/2p1NqR1/1QB2KR1 w - - 0 1 illegal: No proof kernel
5N2/nBbP4/Nq2nNP1/1r3RB1/Q1nRr2N/P2Q1Qpb/kn1R1K2/b7 w - - 0 1 illegal: No possible last move, all moves rejected
4QBq1/2P2b1B/k2rbrNQ/5NP1/1RbR3Q/3nb1PR/1p1Kn2n/2Q1B3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 c4 d5 f4 Kd7 a4 Kc7 f6 b5 c6 h5 f5 e5 a6 Kb6 c7 h4 f7 b4 a5+ Ka7 c5 e4 f6 d4 g3 e3 c6 h3 Nc3 b3 Qh5 b2 Nce2 h2 Qh4 d3 Nh3 Bg4 c8Q Nd7 Ra4 Nb8 Nd4 e2 Rb4 Bc5 f8Q Rh6 f7 Rd6 Qfh6 Nf6 f8B Be6 Nf4 Ng4 Nf5 Be3 Bd2 Bc4 c7 Nc6 Ng6 Nd4 Qe6 Rb8 Qe8 Rbb6 Qc6 Bf7 Qc1 Rf6 Bg2 Rbd6 Be4 Qe8 Bg7 Qg8 Bf8 Be6 Bc3 Bg1 Kd2 e1N Kd1 d2 Bc2 Ka8 a7 Ne2 Rd4 Kb7 a8R Bf7 Rb8+ Ka6 Rbb4 Nd3 Bb1 Be6 Kc2 d1B+ Kd2 Bdb3 Bc2 Ka7 a6 Bbc4 Bb1 Ka8 a7 Be3+ Kd1 Bf7 Be1 Bfe6 Ra4 Kb7 a8Q+ Kb6 Qe8 Bf7 Rb4+ Ka6 Rf1 h1B Rf2 Rb6 Rh2 Bhd5 Rh3 Bde6 Kc2 Nh2 Kd1 Bf2 Kd2 Rd6 Ne5 Nef4 Ne7 Nc5 Bh7 Ne2 N5g6 Nd3 Nf5 Be3+
2nR3b/2PNrBBQ/n3q3/K1P2RQ1/N1k2r2/1b3n2/1bP1p2R/1BQR2b1 w - - 0 1 illegal: No proof kernel
2Kbk2r/n1PR2Pr/1QQ3r1/4qQ1r/2b1BQ2/2R1NR1P/3B1p2/1nbNB3 w - - 0 1 illegal: No proof kernel
B1nN4/BRPBpb1n/2P2bR1/R4B1b/2n1K3/bNqQ1P2/2N3rk/4rQ2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 a5 b4 d5 c4 h5 g4 d4+ Ke4 a4 g6+ Kf6 b6 a3 c6 a2 g5+ Kg7 b7 h4 c5 h3 c7 h2 b5 d3 b6 d2 Bh3 Qd6 Na3 Qd8 Ne2 Qd6 Nd4 Bd7 Rg1 h1N Nac2 Be6 Nb3 Nc6 b8N Na7 b7 Qg3 Nc6 Nc8 b8R Bf7 Rb7 Qc3 Nd8 Rh7 Qf3 d1B Qd3 Bh5 Be3 Ra6 f3 Rd6 Qf1 Rd1 Bg4 Re1 f6+ Kh8 Rg2 Bh6 Bd7 Rg7 Bf5 Bc4 f7 Ng3+ Kf4 Be6 f8Q Bf7 Qe8 Ne4 Qd7 Nd2 Qdd3 Nc4 Ke4 Rh7 Bd7 Bg7 Rg4 Bf6 Rg2 Rh6 g7+ Kh7 Rg3 Rg6 Rg1 Nh6 g8B+ Kg7 Bh7 Ng4 Rb1 a1B Rg2 Bb2 Ra1 N8b6 Ra5 Nc8 Rg1 Ba3 Rg2 Rh6 Bhf5 Rh8 g6 Rg8 Kf4 Kh6 g7 Nge5 Rg5 Ng6+ Ke4 Nf8 Rg2+ Bg5 Rg4 Nh7 Rg3 Bhg6 Rg4 Kh5 Rg1 Kh4 Rg3 Rh8 g8B Bh5 Rg1 Bf6 Rg6 Be8 Bd5 Rg8 Rba7 Bf7 Ba8 Rg7 c6 Rg8 Rb7 Rg7 Bg4 Kg3 Bh3+ Kh2 Bhf5 Rd1 Ba7 Rg8 Rh6 Rg2 Rg6 Re1+
1bb2K1r/bP5B/1rk2P2/1nNq1B1r/R3N2B/p3Q3/B1RrN2P/2Q2nQ1 w - - 0 1 illegal: No possible last move
b2B3k/P1bBQ1Nr/q1R5/BbNn1rR1/nb6/P1PN4/2n3Kp/1Q1R2N1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 f4 Kf7 Kf2 Kg7 g4 d5 f6+ Kg6 a6 e5 a7 h5 c6 Kh7 c3 b5 g6+ Kh6 g7 Kh7 a3 b4 g5 e4 g6+ Kh6 c7 d4 f5+ e3+ Kg2 h4 f7 d3 f6 d2 Bb5 e2 Bd7 Ne7 g8Q e1B g7 Ba6 c8R b3 Rc6 b2 Ra2 Qb6 Qh7+ Kg5 g8N Nd5 Ra1 Bb5 Ne7 Qa6 Nf5 Bb4 f8N Bg3 f7 Bc7 Ne6+ Kf6 Nfg7 Rf8 Qdc2 d1N Nd2 b1B Nb3 Nb2 Nbc5 Na4 Nd3 Ba2 Qb1 h3+ Kf3 h2 Kg2 Rh8 f8B Bac4 Qe4 Rh7 Bg5+ Kf7 Ra2 Kg8 Bd8 Kh8 Nec5 Bb3 Qee1 Bd1 Qe7 Bf3+ Kf1 Be4 Rg2 Bf3 Rg5 Be4 Rd6 Nc6 Kf2 Nd4 Rc6 Nc2 Kf1 Bf5 Kg2 Be6 Nh3 Rb8 Rd1 Rb6 Ng1 Bf5 Rcg6 Rf6 Rh6 Rf7 Rc6 Be4+ Nf3 Bd6 Ba5 Bf5 Rc8 Be5 Qd8 Ndb6 Ng1 Bg4 Rc7 Rf5 Qf6 Bf4 Be7 Be5 Bd8 Bf3+ Kf1 Bf4 Qe7 Ba8 Rc6 Bc7+ Kg2 Nd5
3n1r1q/PQQ2P1R/6Rr/2Bnr2N/1KB3b1/4RRN1/1Ppb2k1/1b1Br2N w - - 0 1 illegal: No proof kernel
3QRRQK/p2Q1nR1/PPB1r1b1/b3rN1n/3N1R2/q3bP2/1n2b1N1/4Bk2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 cxb3 Qc7 b4 Qb6 b5 Qd8 Kd2 Kf7 Kc3 Kf6 Kd4 g5 a4 d5 b4 g4 h4 g3 f3 e6 b6 g2 a5 Qc7 c6 Ba6 b5 Nd7 b7 Ne7 b8Q Nb6 h6 Qd8 c7 Qd7 c8N Rh7 h5 Ng6 Nd6 Re7 h7 Ne5 h8R Nf7 h6 Nc4 b6 Nb2 h7 Bd3 a6 Bh6 Ne2 g1N Nd2 Kg5 f6 Nh3 N2c4+ Kh4 Re8 Qa4 h8Q Qa3 Rg1 Bg6 Bd2 Nf4 Ne3 Nh5 Ng2+ Kh3 Qd8 Rc8 Qa4 Rc6 Nf5 Rd6 Qad7 Bf4 Bb4 e5+ Kc5 d4 Qg8 d3 Ned4 d2 Bb5 d1B Bc6 Rde6 Kd5 e4 Be1 e3 Rb1 Nh8 f7 e2 f8R Be3 Rc1 Nf7 Rc4 Bf2 Nb3 Be3 Rf4 Kh2 Nbd4 Kh3 Ngh4 Kh2 Rg3 Kh1 Ng2 Kg1 Rgg4 Bh7 Rg7 Kf1 Bh4 e1B Bg3 Ne5 Bh4 Ba5 Be1 Be2 Ke4 Rg6 Kd5 Rg5 Ke4 Bg6 Kd5 Rf7 Ke6 Rf6+ Kd5 Bd3 Nd6 Qa1 Rgf7 Rff5 Ke6 Be2 Rh7 Nf7 Ke7 Ng3 Ke6 Rc5 Kf6 Qa3 Kg7 Rgd5 N6f5 Rd6 Nfh4 Re6 Nhf5 Ng5 Kh8 Nh5 Rhe7 Rce5 Rg7 Nf7+
2rNb2Q/3nb1b1/1r3qQQ/RB2nbB1/q4P1p/1PB1P1RR/2k3B1/K5N1 w - - 0 1 illegal: No proof kernel
N1q1bqB1/1R4B1/4N1rr/5p1B/kPQn2PP/N1Kn3N/b3QbR1/4b2R w - - 0 1 illegal: No possible last move
2RQ1NR1/6bN/1R5Q/n3P1Q1/Q2bP1B1/qnbqP1pr/k1b3r1/B4B1K w - - 0 1 illegal: No possible last move
1N1BN3/Q1B4b/bR3q2/Q2P2rr/n1P1qb2/K1p4n/1Pb1BR2/Q2BkN2 w - - 0 1 illegal: No proof kernel
rqrk1K2/7N/NbnBB3/RRQp2r1/1N2Q2b/P2PR3/PnrqQ3/1R6 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 b5 c4 b4 Ne2 a4 Ng1 a3 bxa3 Ba6 Bh3 Rh6 Bf1 Bb5 cxb5 Rh8 Ke2 c5 Kd3 g5 Kc4 e5 Kd5 e4 f4 g4 h4 b3 b6 b2 d3 c4 f6 e3 f5 g3 f7+ Ke7 b7 d6 f6+ Kd7 h6 c3 h5 c2 h7 e2 h6 e1R Nc3 b1Q Nf3 g2 Bf4 g1R Bh3+ Rg4 Qe2 c1B Ng5 Qb2 Rb1 Qd2 Rb5 Be7 f8R Qe3 f7 Rf1 Re8 Qdb6 f8Q Nc6 b8N+ Kc7 Na6+ Kb7 Qf5 Rb8 Qe4 Rc8 Ke6 Nf6 Kf7 Qd2 Nd5 Nd7 Ndb4 d5 Rg1 Rg3 Be6 Rf2 Kg7 Rfg2 Bd6 Nde5 Re1 Bb2 Rb1 Nc4+ Kf7 Rg8 h8Q Bd4 h7 Nb2 Qhe5 Ra8 h8R Bf6 Nh7 Bh4 Q5f4 R3g5 Qfe3 Rc8 Ra5 Qa7 Qg1 Bb6 Qc5 Ra8 Rb5 Qb8 Ra5 Bc7 Re7 Rc8 Ree8 Bb6 Kf8 Rg1 Rg8 Rc1 Rg6 Rc2 Rf6 Ne5 Rf3 Nc6 Re3 Ba7 Rd8 Bb6 Q4g4 Bc7 Qef3 Qa7 Qgc4 Rcb8 Qce4 Qb6 Kf7 Qa7 Rd7 Kc8 Kf8 Qb7 Rg7+ Kd8 Qe2 Rc8 Rf7 Qb8 Re7 Bb6 Rb7 Ba7 Rbb5 Bb6
1rq1N3/qknN1n1r/5QQB/2Kpb2q/P1NR4/B1R1RPN1/1bqP4/3B4 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Ba6 c4 Bb5 cxb5 Rh7 Qg4 Rh6 Qd1 Rh8 Ke2 e5 Kd3 c5 Kc4 g5 h4 g4 a4 g3 f6 g2 f3 e4 a6 b3 b6 b2 h6 d6 f7+ Kd7 h5 Kc6 h7 e3 b7 e2 h6 e1Q a7 Qde8 Rh4 Q1e5 Be2 Qh5 Na3 b1Q Qc2 Qhe5 Rd4 Qe4 Bd1 Qe1 Qg6 Q1e5 Ne2 g1Q Ng3 Bg7 f8B Na6 b8N+ Kb7 Nd7 Rb8 a8N Qc8 Nc7 Qh5 Ne8 Be5 Kd5 Qc2 Nc4 Qe3 Ra3 Qf2 Re3 Qg1 Ncb6 c4 Ba3 c3 Bg7 Nc7+ Kc4 d5+ Kc5 Ne7 Nc4 Nc6 Bf8 Nd8 Bg7 Rf8 h8R Nf7 h7 Rg8 Bh6 Rg7 Rg8 Qf2 h8Q Rh7 Qhg7 Qe2 Ncb6 Qa6 Q7f6 Qa7 Rf8 Qb3 Rg8 c2 Rf8 c1B Rh8 Qa6 Nc4 Qc2 Rf8 Bb2 Rc3 Nd8 Rf7 Qa8 Re7 Nf7 Re6 Bf4 Ree4 Be5 Ree3 Qa7+
1q2B2n/1RR1Q2r/1r5b/P2QP1p1/4N3/BBR1P3/5bbN/kbKqNn1B w - - 0 1 illegal: No proof kernel
1N2Bqk1/Q1b5/R1B1qPN1/7r/1q3Q1N/pnPnQ2b/PB3RB1/q3r1K1 w - - 0 1 illegal: No possible last move
B1Qb1r1b/B3b2R/N3p2q/qNNBr1nN/1R2P2R/5PP1/b5Q1/1n2k2K w - - 0 1 legal: proof: c4 b5 b4 g5 a4 d5 cxd5 f5 axb5 g4 Ra3 g3 Rf3 Nh6 Rxf5 Qd6 Rf7 Ng8 hxg3 Qe6 g4 Qd6 g5 Qd8 d4 Kd7 d6 Ke6 g6 Kd5 b6 Ke4 g7 a5 d7 h5 b5 c5 b7 h4 d5 a4 g3 c4 d6 a3 b6 h3 Qd2 h2 Nh3 c3 Nf4 a2 Na3 Na6 b8N a1B b7 Nh6 g8B c2 Rh7 Qa5 d8N Bag7 d7 Nc7 Na6 Nb5 b8R Nf7 Nb7 Ng5 d8Q Be6 e3 Ra7 Qc8 Kf3 e4 Ba1 Bc4 Nc3 Kf1 Nb1 Bb2 Bf7 Bd4 Bb2 Bb5 Ba2 Bd5 Rg8 Bb6 Bh8 Nbc5 Rd7 Ba8 e6 Bc4 Be7 Ba7 Rf8 Rb4 Rd5 Nb5 Rdf5 Bcd5 Re5 Rg1 Bd8 Rg2 h1Q+ Rg1 Qh2 Rh1 Qh3+ Kg1 Qh6 Rh4 Be7 Nh5 Bd8 Qd4 Ke2 Kh1 Ke1 Qd3 Be7 Qf3 Bd8 Qg2 Be7 f3 Bd8 Nb3 c1B Ra4 Be3 Rd4 Be7 Rb4 Bb6 Nbc5 Bbd8
BN2R1b1/2K2R1P/2B1bb1B/1rNq3k/1nbP3P/1pQ1Q1qR/3Rr3/1n1Q4 w - - 0 1 illegal: No proof kernel
2BBq3/7p/nN2QrN1/R2qRb2/n6R/1kP2PPB/1b1bR1bQ/2Qr3K w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 b4 Kf7 b6 a5 b5 e5 f6 Ke6 c3 d5 f3 e4 Kf2 d4 b7 Kd5 g6 d3 b6 Kc4 g7 a4 c6 a3 c7 a2 f7 Ra6 Rh4 Bd6 f8R Bh3 c8B Qg5 Ne2 d2 Kg1 Qd5 Re8 Bf4 Kh1 e3 Re5 Ne7 g8Q Bf5 Qe6 Rd8 g3 Rd7 Bh3 Rd6 Qg1 d1B Qh2 Kb3 Na3 Bdc2 Nc4 Bcd3 Ba3 Bg5 Re1 a1B Nf4 e2 Ng6 Bb2 Bb4 Ra1 Ba5 Na6 b8R Bd2 b7 Rd1 Ra8 Rc6 b8Q+ Rb6 Rf1 e1Q Qb7 Qe3 Re1 Bf1 Re2 Qee4 Qbd7 Rc6 Nb6 Rd6 Qf7 Rf6 Qde6 Qa4 Qf8 Qb5 Qh6 Qe8 Bb7 Nc8 Qe3 Nd6 Bc8 Ne4 Ra7 Nec5 Qf4 Be1 Qc1 Na4 Na8 Bb1 Bd8 Bf5 Nb6 Bd2 Ra8 Nb8 Ra5 Na6 Rf2 Nb8 Rg2 Na6 Rge2 Bg2+
1B2N1Rq/1N1P2K1/1Brb1NP1/5Q2/b2Q1Qp1/1B2nq1k/1rnn1Pn1/1BR5 w - - 0 1 illegal: No proof kernel
n4q1r/1NRP2R1/B1p2r2/1PN2N1Q/3Rn1Pb/B1k2KBr/Q1b5/3Rr1q1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 d4 Kd6 f4 h5 b4 a5 g6 e5 b6 h4 g7 a4 b7 h3 f6 c6 f5 e4 f7 h2 f6 a3 Nd2 a2 Nb3 e3 Nc5 Nh6 g8R Qe7 Nf3 Ra7 Ba3 Rh7 Nh4 Na6 b8B+ Rc7 Kf3 e2 Rg7 e1R g4 Rh8 Qa4 Rg8 Rd1 a1R Nb7+ Kd7 d6 Ke6 d7 Kd5 Nf5 Rh8 d8R+ Rd7 Bd6 Ng8 Bg3 Nc7 Ba6 Na8 b5 Rd6 Rd7 Qd8 Rc7 Be7 f8N Rh3 f7 Bh4 Rd3 Nf6 Ne6 Qf8 Nec5 Ne4 Qc2 Rab1 Qa2+ Rb3 Rf1 Kc4 d5 Rf6 d6 Be6 d7 h1Q+ Qg2 Rbb1 Rd4+ Kc3 Rg1 Qh2 Qa2 Bb3 Rf1 Bc2 Rh1 Qe7 f8Q Qg1 Qff7 Qf8 Qh5 Rbd1 Ra4 Rdd6 Rd4 Rde6 Rh2 Rh6 Rhd2 Ref6 Rd1 Rh8
1B2qbQK/1P1Q2P1/B4rk1/R2nqn1R/7p/R1NN1n1b/2N3P1/1n2rN1Q w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 a5 Kd4 h5 Ke5 c5 d4 e6 f4 c4 b4 c3 d6 a4 f6 a3 f5 a2 g6+ Ke8 d5 c2 f7+ Kd7 f6 Qb6 Nc3 Qa7 b6 Qa4 b5 Bg7 f8R Qb4 b7 Qc5 b6 Ra5 Ba6 Ra3 Nf3 Rh6 Nd2 Qc6 Nf1 Rb3 Bf4 c1N Re8 Bf8 f7 Be7 f8Q Nf6 Qg8 Bf8 Re7+ Kd8 d7 Ne2 Rh3 h4 Rh7 Ra3 g7 Ke7 d8N Ra5 Nf7 Qe8 Rh8 Rg6 Rh5 Ra4 Re3 Rd4 Qb1 Rd1 Rg3 Re1 d6+ Kd7 Qd1 Nd5 Ke4 e5 Kf5 e4 Ne5+ Kd8+ d7 Ke7 Nd3 Nc6 b8N e3 b7 Rf6+ Kg5 Ncd4 Rh3 Rf5+ Kh6 Rf6+ Kh7 Nf5 Rg3 Nd6 Kh8 Nf5 Rb1 a1Q Rb5 Qa5 Qc1 Qc7 Ra5 Qe5 Qb1 Rb6 Rf3 Kf6 d8Q+ Kg6 Nc6 Bd7 Nd4 Rf6 Nc2 Be6 Ne4 Nec3 Qd7 e2 Qa1 Nb1 Nc3 Nd6 Bg3 Bh3 Bf4 Nf5 Bh2 Q5e7 Bb8 Qe5 Nc5 Rd1 N3a4 e1N Nh2 Be7 Ra3 Nf3 Nd3 Nbd2 Nc3 Bf8 Qb1 Rf1 Qd1 Nb1 Qe1 Rf2 Qh1 Re2 Nf1 Re1
1N5b/Pqk3Bq/4B1qr/n1P1qpB1/1QN1Rn2/4N3/1K2NPbQ/R2r3Q w - - 0 1 legal: proof: e4 a5 b4 d5 exd5 c5 bxa5 h5 g4 c4 gxh5 c3 dxc3 Bg4 c4 Be6 c5 Bc8 Kd2 Kd7 Kc3 b5 a4 g5 h4 f5 d6 e5 h6 g4 h7 e4 a6 b4+ Kb2 e3 c4 b3 h5 g3 a5 e2 a7 e1Q c6+ Ke8 c5 g2 c7 Kd7 h6 Qde7 a6 Qh4 Qd2 Qe2 Na3 Qd1 Ne2 g1Q Nc4 Qe4 Qb4 Qe3 Rh4 Be7 Re4 Bb7 c8N Qg6 N8b6+ Kd8 d7 Kc7 d8N Qd7 Nc6 Nf6 Bd2 Nd5 Bg2 Qeg3 Ne3 Nf4 Nbc4 Rd8 h8B Bf6+ Ncd4 Nc6 h7 Na5 Bg7 Qdf7 h8Q Qg8 Qh4 Q8h7 Qh2 Rd5 Bc1 Rh8 a8Q Rd7 a7 Rd6 Kb1 b2 Nc6 Rd1 Nb8 Bc6 Ka2 b1Q+ Ka3 Nh5 Bd2 Qe5 Bf3 Nf4 Bh5 Qgh6 Bf7 Q6g6 Be6 Bd5 Rd4 Bg2 Bc1 Bf1 Qah1 Bg2 Bd2 Qbe4 Kb2 Qb7 Nf1 Nh5 Bg5 Nf4 Nfe3 Qg8 Nc3 Rh6 Re4 Q8f7 Bf8 Bh8 Bg7 Qd6 Ne2 Qe5+ Ka3 Qg8 Ka2 Q8h7 Ka3 Qed5 Kb2 Qe5+
2R1B1Kn/1q2np2/QrR2P1k/1q4q1/N2Qrr1N/n2P2B1/QR1P3N/1N3b2 w - - 0 1 legal: proof: a4 b5 axb5 h5 g4 d5 gxh5 e6 c3 d4 Qb3 d3 exd3 Bc5 Qd1 Bd4 cxd4 Qe7 Bg2 Qd7 Bf1 Qd8 Nc3 Kf8 Ke2 c5 Kf3 a5 Kf4 g5+ Ke5 Kg7 h4 a4 f4 a3 b4 c4 b6 a2 b5 g4 f5 g3 h6+ Kh7 h5 g2 d5 Qf8 b7 Ra7 b6 Qa3 d6 Ne7 Kf6 e5 d7 e4 d8R e3 Bb2 e2 Nf3 e1Q Rc1 g1N Qb3 a1R Bg2 Rf8 Nh2 Nbc6 b8Q Qa2 b7 Ra4 Qa8 Nb4 b8N Be6 Qa6 Nc2 Rc8 Qg3 Nd7 Na3 Bc6 Qb1 Qa2 Nf3 Nb6 Re8 Rhd1 Rb4 Nba4 Nh4 Rc2 Qb8 Rdc1 Qb7 Bd7 Rb6 Bc6 Kg8 h7+ Kf8 h8N Bd5 h6 Bg2 Nd5 c3 h7 Bh3 Re1 Bg2 Re6 Qg1 Bd7 Rf1 Rec6 Rf2 Ba1 Bf1 Bb2 Rd8 Be8 Qg5+ Ke5 Kg7 Ng6 Kh6 Ba1 Ng2 Nh4+ Rd6 Bb2 Nf4 Ba1 Kh5 h8Q+ Rh6 Rc1 c2 Rb1 c1Q Ndc3 Qb2 Qf6 Qb4 Rb3 Rf3 Nb1 Qb5+ Kd6 Re3 Be5 Re4 Rb2 Qg4 Qd5 Qg5 Qfe6 Rf6 Qd4 Nh3 Bg3 Kh6 Rb3 Nf4 Rb2 Qb8+ Kd7 Qb7+ Kd8 Neg6 Qec4 Nh8 Qa2 Qa8 Kd7 Nfg6 Kd8 Ne5 Ke7 Qb7+ Kf8 Neg6+ Kg8 Rfe6 Rb3 Rf4 f6 Ree4 Rb2 Ne7+
2n1r2q/B1N1p2k/2KPPPqn/qB4B1/1RQN1Qb1/1N2r1BR/2R4r/3n4 w - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 d5 gxf5 g4 c4 Bh6 cxd5 Bg5 hxg5 Qd6 Na3 Qd7 Nb1 Qd8 d4 Kf7 Kd2 Kg7 Kd3 c5 Kc4 h5 e4 a5 f4 h4 b4 a4 e5 g3 f6+ Kh7 d6 h3 Kd5 a3 b6 a2 b5 h2 b7 c4 f5 c3 f7 g2 f8N+ Kg7 d7 c2 f6+ Kf7 b6 Ra3 Ne6 Kg6 Qd2 Ra8 Qf4 Na6 b8R Rh4 b7 Rh6 Nd2 Qa5+ Bb5 Rh4 d8B Nc5 Ngf3 g1R Nc7 Rf1 Kc6 Ne4 d5 Bg4 Nd4 Rf3 N2b3 Nh6 e6 Kh7 g6+ Kg8 g7 Kh7 Rb1 a1Q Rc8 Nd6 b8B Re3 Ba7 Q1a4 Bd2 c1N Rb2 Rhh3 Rb8 Qa2 Rc2 Nc8 d6 Ne2 Be1 Nc3 Bg3 Nd1 Rb7 Kg6 g8Q+ Kh5 Qh7 Qb1 Qhe4 Rb8 Qd5+ Kg6 Qc4 Kh7 Na6 Qaa2 Bdb6 Qa5 Nc7 Nf7 Rc1 Re5 Ba4 Qg6 Qf2 Kh6 Ndb5 Re4 Bc5 Nb6 Rc2 Re8 Bb4 Rh5 N5d4 Nc8 Be1 Rh3 Rb4 Re2 Bh4 Rhe3 Bb5 Rd2 Rg1 Rde2 Rg3 h1Q+ Qf3 Qh3 Qf5 Rh2 Qf4+ Kh7 Bg5 Kg8 Bf2 Qh8 Rh3 Nh6 Bg3 Kh7
Q1RB1n2/3B1n1k/r2P3q/r1qR4/1p2Kn1N/rP2PBq1/3N2R1/1RQb2Q1 w - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Ne7 fxe5 Ng8 a4 Bc5 a5 Bb6 axb6 Qd6 Nf3 Qe7 Ng1 Qd8 Kf2 Kf8 Ke3 a5 h4 g5 d4 Kg7 h6+ Kh7 b3 c5 d6 f5 d5 g4 d7 f4+ Ke4 c4 b7 g3 h5 b4 e6 f3 e7 f2 e8B a4 Rh2 a3 Nf3 g2 Nh4 g1Q Nd2 a2 Rb1 a1R Bg2 f1Q Bf3 c3 Rg2 Qf6 d8R c2 Bd7 R1a6 e3 Qe2 Bb2 Qb5 Qc1 Qc5 d6 Qfg5 Bf6 Qe1 Rf8 Qeg3 Bd8 Qf6 Qg1 c1N Re8 Qfg5 Re5 Nd3 Rd5 Nf4 Qc1 Ra3 Qg1 R8a5 Qc1 Na6 b8Q Nc7 Qa8 Nce6 Qg1 Nf8 Qc6 Ne7 Qa8 Nf5 Qc1 Kg8 h7+ Kg7 Qg1 Nh6 Qc6 Rg8 h8R Ba6 Qa8 Be2 Qc8 Bd1 Qa8 N8e6 Qc6 Nf7 h6+ Kf8 h7 Kg7 Qa8 Nf8 Qc8 Kh6 Qa8 Rg7 Rg8 Ra6 h8Q+ Rh7 Qa1 Rh8 Re5 Kh7 Rd5 Qh6 Qc3 N8e6 Re8 Nf8 Qc1 Rg8 Be7 Rg4 Rc8 Rg5 Bd8 Qb6 Rd4 Rga5 Rd5 Qc5
B2Q1R2/N3p1Nq/r1b2b2/QPBRP3/7r/K1R2Q1B/qP1rn1b1/1kB2q2 w - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 fxg5 b4 h4 b3 axb3 Na6 b4 Nb8 b5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Nd7 g6 Bg7 h5 Bb7 g5 Bf8 g7 Bc8 Qb3 Ne5 Qd1 Ng6 hxg6 Bd7 Ra5 Bf5 Ra1 Bc8 e4 Kd7 d4 Kd6 Kd2 h5 Kc2 c5 Kb3 f5 Ra3 a5 Be2 f4 Nd2 f3 Nh3 h4 Nf4 f2 Bf3 f1Q Nh5 Nf6 g8B h3 g7 h2 g6 Ra6 Be6 Bd7 g8Q Bc6 Ng7 Rh4 Bh3 c4+ Ka4 c3 Nb3 c2 e5+ Kc7 d6+ Kb6 d7 Ne4 d5 Ng3+ Be4 Ne2 Nd4 Kc5 d6 Qe8 d8R Qef7 d7 Kc4 Rg1 h1B Rd3 Ng3 Ka3 a4 Qf3 Ne2 Rg3 Bg2 Qh8 Qg8 Re8 Qh7 d8B Qh1 Bb6 Qf1 Nge6 Bg7 Rf8 Bf6 g7 Bg5 g8Q Bf6 Ka2 a3 Ng7+ Kb4 Qd5 Ka4 Qd8 Kb4 Bc5+ Kc4 Bf4 c1Q Qa5 Qc3 Bc1 Qb4 Kb1 a2+ Kc2 a1R Rd2 Ba8 Nc6 Ra4 Na7 Bc6 Rd5 Qc3+ Kb1 Kb3 Qg8 Rd4 Ka1 Qd3 Qh8 Kc2 Ka2 Nc3+ Ka3 Kb1 Rf7 Qc2 Qd8 Rd2 Rf8 Ne2 Rd6 Be8 Ba8 Qc4 Rd5 Bc6 Qf2 Rb6 Rc3 Ra6 Qf3 Qa2#
2K1Q3/b4P1q/3RB3/1br1kb1R/p1n4N/2rPBb1R/PQr5/N1BRQb2 w - - 0 1 illegal: No proof kernel
1N1N4/2QnqBQ1/1B2Q1BQ/nP3p1b/PN1nn1kr/1R1nb3/2b2P2/4K2R w - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 e5 gxh5 b4 dxe5 Ra6 c3 Rb6 c4 Rb5 cxb5 Rh7 Nc3 Rh6 Nb1 Rh8 e4 Ke7 a4 Ke6 h4 f5 a6 c5 a7 d5 a8N g5 h6 c4 h5 d4 h7 c3 h6 b3 Bc4+ Ke7 e6 Kf6 e7 b2 e8B c2 Nh3 g4 Na3 b1N Bg6 g3 Ng5 g2 Nb6 g1N Be3 c1N Qc2 d3 Nf7 Nd2 Rb1 Bc5 Rb3 Qe7 Nd8 Bb7 Bcf7 Nc4 Qc3+ Bd4 Nc2 Nge2 Nb4 Na5 Qc7 Bc5 Bd4+ Kg5 e5 Bf3 e6 Bh5 Nd7 Kg4 Be3 Ba7 Bc5 Nd4 Bb6 Nbc6 Nb8 d2+ Kf1 d1B Ke1 Qd6 e7 Nf6 e8Q Ne4 Qe6 Bc2 Na2 Ne5 Nb4 Rg8 h8Q Qe7 h7 Nd7 Qg7 Nd3+ Kf1 Rf8 h8Q Rg8 Qhh7 Rh8 Qhh6 Nf3 Qc1 Rh7 Bd4 Rh6 Bh7+ Bg6 Bc5 Rh4 Qch6 Neg5 Bd4 Bh5 Bhg6 Ne4 Be3 Bd4 Ke2 Ba1 Bc5 Bd4 Bb6 Bc5 Kf1 Be3 Ke2 Nd4+ Kf1 Nc1 Ke1 Nd3+
R5nB/B2pP2Q/B2PP2q/Q1B1b1n1/1N4qk/N6q/nQ1R2n1/rb1N1K2 w - - 0 1 legal: proof: g4 e5 a4 b5 b4 a5 c4 h5 gxh5 e4 c5 e3 c6 Be7 fxe3 Ba6 e4 Bb7 axb5 a4 b6 Bc8 b5 Ra7 e5 Rb7 cxb7 Bf8 h4 Ke7 d4 g5 e4 f5 h6 c5 e6 Kf6 d5 c4 e7 c3 h7 g4 h5 f4 d6 Kg5 h6 a3 e5 a2 e6 c2 Ba3 c1N Be2 f3 Qa4 g3 Bc5 g2 Rh2 Nc6 b8Q Nd4 b7 Bg7 b6 Be5 Qa5 Qf8 Nh3+ Kh4 Na3 g1Q+ Bf1 Qg2 Nf2+ Qh3 Ba6 Qf5 Nd1 Qg4 Rg2 f2+ Kf1 Nf3 Nc3 Nf6 Nd1 Rg8 h8Q Ng5 h7 Rg7 Be3 Ng8 Bc5 Rf7 Qg7 Rf4 h8B Ra4 Rb1 a1Q Qh7+ Nh6 Rb2 Na2 Rd2 Qb1 Be3 Qg6 Bc5 Qh2 Rg3 Q6h5 Rf3 Ng8 Rf8 Qh6 Qa7 Rf4 b8B Ra4 Qb7 Qhh3+ Qg2 Bb7 Ba7 Bd5 b7 Be4 Ra8 Bb1 b8N Qd4 Ke2 f1N Nc6 Ne3 Nb4 Qe4 Qh2 Ng2+ Kf1 Qg6 Qg1 Qe4 Qd4 Qeg4 Qb2 Nc3 Nb5 Ra1 Na3 Na2
1r1r4/r2n4/1q3kB1/N2p3q/1q1PP1QK/3n1PrN/2R2BQ1/1Q1QRbBN w - - 0 1 illegal: No proof kernel
5Q2/N2r1R1b/NqPB3R/1N1p4/1q1P4/1Qn1rKB1/1qPQn3/kBq1r2N w - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 f5 exf5 c5 a3 c4 b3 e6 bxc4 Bb4 c5 Bc3 Bg2 b4 Bh3 b3 Bf1 Bb4 axb4 Qa5 Ra3 Qb6 Ra1 Qd8 Ke2 Ke7 d4 Kf6 f4 g5 h4 a5 h6 d5 c6 e5 h7 g4 h5 b2 h6 a4 b5 e4 b6 e3 b7 g3 Kf3 e2 Nh3 e1Q Nf2 a3 Bc4 a2 Nc3 b1R Qd2 g2 Nb5 g1Q Na7 Na6 b8N Nb4 Na6 Nd3 Rh5 Qb6 Nh1 Rb8 Ba3 Rc1 Bd6 Rb7 Rb1 a1Q Ba2 Qe7 Rb2 Re1 Bb1 Rd7 Ra2 Kf7 f6 Ke6 f7 Qab2 f8B Nc1 f5+ Kf6 Ra1 Ne2 Bg3 Qeb4 Rh2 Qf1+ Rf2 Qg1 Bfd6 Qf1 Ra3 Qg1 Re3 Kg5 f6 Kf5 f7 Nf6 f8N Ne4 Ne6 Re8 h8Q N4c3 h7 Ree7 Nec7 Re4 Nb8 Ba6 Rh2 Bd3 Qf8+ Kg5 h8Q Re6 Ncb5 Bh7 Qd1 Re8 Re7 Qe3+ Kg2 Qec1 Rf7 Re3 Rh6 Kg4 Na6 Kg5 Re7 Kg4 Qb8 Kf5 Rg7 Ke4 Rf7 Q6c5 Qa8 Q2a3 Nc8 Qd2 Ne7 Qb6 Qhf8 Rd3 Nc8 Ke3 Nb8 Qab3 Qa4 Q3a3 Nca7 Qab3 Ba2 Qb2 Qb1 Qd1 Qb3 Kd2 Na6 Re3 Qa1 Qbb1 Kf2 Kc1 Kg2 Ne4 Qac3 Qb2 Qd3 N4c3 Kf2 Qa1 Bb1 Qd2 Qbc4 Kb2 Kg2 Qaa3 Qb3+ Ka1 Kf2 Qd1 Qd2 Qb2 Kg2 Qdc1 Kf2 Re5 Kf3 Re3+
2N2R2/3kB2R/4N1Q1/1b2Q3/1QrpB1Pb/1q1P1K2/PNq1n1B1/qrb3Bq w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 Nc6 c3 Nd4 c4 Nb5 cxb5 Bh6 Rh3 Bg7 Rh1 Bf8 Ke2 d5 f4 e5 g4 c5 a6 h5 b6 d4 a7 e4 f6 b3 b7 c4 b8Q h4 g6 c3 g7 h3 f5 c2 f7+ Kd7 f6 h2 Nf3 b2 Nc3 b1Q Ng5 e3 Kf3 e2 Ne6 e1B Na4 Qb2 Bg2 Rh4 Qe5 Nh6 g8N Bg3 Ne7 Ba6 Nc8 Ba3 f8B Qdb6 f7 Bb5 Be7 Nf5 f8Q Rh8 d3 Rb8 a8B Bh4 Qg8 Ng3 Qd2 Ne2 Qb4 Rh7 Rf1 h1Q Be3 c1Q Be4 Qcc2 Bg1 Qbb1 Qg6 Bc1 Rf2 Qbb2 Rb1 Qa1 Rb3 Qb7 Nb2 Qd5 Ra3 Qdb3 Ra5 Rb7 Ra7 Rh5 Qf4 Rd5 Qe5 Rc5 Qc3 Rcc7 Bc5 Qd5 Na4 Bc4 Ba3 Rb1 Nb2 Qa8 Bd6 Bb5 Qb4 Qd5 Rf1 Bd8 Kf2 Kc6 Bf8 Nf4+ Kg3 Bf6 Rf3 Ne2+ Kf2 Be7 Rf7 Beg5 Kf3 Bh4 Bd6 Nf4 Rf8 Ne2 Nb6 Rc8 Rh7 Rc7 Be7 Rc8 N6c4 Kd7 Nd6 Rc3 Nc8 Qdb3 Rg8 Rc7 Rf8 Rc4
B5N1/3qNQ1n/5rQQ/P1B1bR2/qpN1nPrn/1P2q1n1/1B3B2/1k4KR w - - 0 1 illegal: No proof kernel
4rq1R/1BNP1B2/pR1B4/PbRP3r/1kbQ2q1/b1rrQ2n/4QR2/KN6 w - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 c5 exd5 c4 h4 c3 bxc3 Bf5 c4 Be6 c5 Bc8 g4 Bd7 h5 Qa5 g6 Bc8 g5 Qd8 g7 Nc6 Rh2 Ne5 Rh1 Ng6 hxg6 Bg4 Rh3 Bd7 Rh1 Bc8 d6 Kd7 Rh2 Kc6 a4 e5 d4 b5 Kd2 h5 Kc3 f5 Kb2 f4 c4 h4 d7 e4 d5+ Kc7 c6 Kb6 c5+ Ka5 c7 f3 c6 b4 Nh3 f2 Nf4 h3 Nc3 b3 Rb1 e3 Qd4 e2 Ne6 e1Q Bf4 Rb8 Ba6 f1R Ka1 Ne7 g8R Qd1 g7 Rf3 g6 Rh5 Rh8 Qe8 Rc2 h2 g8B h1R Rf2 R1h3 Bf7 Qe2 Rb2 Bb7 c8R Qe4 g7 Ng6 g8Q Ba3 c7 Bc6 Rg2 Qf8 Bd6 Nf4 Bb7 a6 Qg4 Rhg3 Rb1 Nh3 Rf2 Re3 Qe2 Qg4 Rd8 Rgf3 c8Q Ra8 Nc5 Re8 Ne6 Rd3 Rb2 Bb5 Qc6 Rc8 Qde3 Rc7 Qc4 Bc6 Qcd4 Rc8 Ba8 Rc7 Rb8 Rcc8 Rb6 Bb5 Rc2 Rc4 Bb7 b2+ Ka2 b1B+ Ka1 Ba2 Nb1 Bb3 Nc7 Rc5 Ra2 Rc1 Rc2 Ba2 Rcc6 Bac4 Rc5 Kb4 a5 Rcc3
2K1qRqB/N4bp1/7r/PNn1k1PB/1R2q1QQ/4n3/QbN2Pn1/N1Rq4 w - - 0 1 illegal: Other
1qRR3n/3N2K1/1PB3P1/2Bn1p2/1qN2b2/3BqP1R/kn2NR1q/3brQQ1 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 d6 Bg4 axb3 Na6 b4 Bc8 b5 Nb8 d4 Kd7 e5 Ke6 d5+ Kf5 d7 a5 Qd4 Ra6 Qd1 Rd6 exd6 Kg6 Kd2 Kf5 Kd3 Ke5 g4 c5 b4 h5 g6 a4 g5 a3 b6 h4 b7 a2 b5 h3 b6 c4+ Ke3 h2 g7 c3 g6 c2 Nc3 Nc6 b8N Nf6 g8B Bh6+ Kd3 Bf4 Ba3 c1Q Nce2 Qe3+ Kc4 Qc7 d8R Bg4 Rc8 Nd8+ Bc5 e6 Rc1 a1Q d7 Qb1 d6 Nd5 Rc2 f5 Nf3+ Ke4 Bg2 e5 Qg1 Nf7 d8R Rh3 d7 Nh8 Bf7 Rh7 Be8 Re7 Bf1 Qa7 Ne1 Qb7 Nd3 Qe1 Nb2 Qc7 Nc1 Bd1 Ne2 Qd6 Kb5 Q1d2 Nc4 Kd3 f3 e4 Ra2 Qe5 Kc6 Qb4 Rc2 Qa1 Rb2 Qa7 Ra2 Re5 Kd6 Qa8 Nc1+ Kc3 Rf2 Qb7 Bd3 Qa7 Ne2+ Kb3 Nc6 Re7+ N6e5 Ka2 Qf1 Rh7 Ke6 Qb8 Rg1 h1Q Rg3 Rh2 Rh3 Qg2 Qg1 Rh1 Qf1 Qh2 Qg1 Nc7+ Kf6 Nd5+ Kg7 Qc1 Qg2 Re1 Qf1 e3 Bf7 Nf6 Bd5 Qca3 Bc6 Nd5 Rg8 Qac3 d8Q Qcb3 Nd7 Q3a3 Ng3+ e2 Qg5 Qc1 Rgf8 Qe3 Rfd8 Ne7 Bde4 Nd5 Qh1 Rf1 Bc2 e1N Ne2 Nd3 Qg4 Nb2 Bd3 Re1 Qf1 Qb7 Qgg1 Qb8
1R2rB2/1qN1nqN1/1Qp1B2k/q3Q3/q1PP4/Q2nb3/P4rQ1/RR1K2Nn w - - 0 1 legal: proof: e4 g5 f4 d5 fxg5 a5 exd5 a4 h4 a3 g4 Bh6 h5 Bg7 bxa3 Bh6 a4 Bf5 a5 Bg6 hxg6 Bf8 d4 h5 c4 f5 d6 e5 g7 Kf7 a6 Kg6 d7 b5 a7 c6 Rh2 b4 Be3 e4 Na3 b3 Rh1 f4 Qe2 h4 Nb5 h3 Kd1 b2 Nc7 h2 Bh3 Ne7 g8N f3 Nh6 f2 Nf5 Na6 Ng7 f1Q+ Qe1 Rb8 a8Q Nb4 Qa3 b1Q+ Bc1 Qc8 d8Q Qf7 Qeg3 e3 Qe5 Qbf5 Bb2 Kh7 g6+ Kh6 Bc3 Nd3 Bb4 Ra8 Bd6 Qcd7 Qb8 Qc8 Qb6 Qb7 Rb1 Re8 Bc5 Nd5 Bd6 Be7 Ra1 Bg5 Bf8 e2+ Kc2 e1Q Nge6+ Qg7 Bd6 Qd7 g7 Qe7 g8R Bd2 g5+ Kh5 g6 Ra8 g7 Rf8 Nf3 Be3 Bc5 Rf6 Rb8 Re8 g8Q Kh6 Qg2 Qh5 Bd6 Qhf7 Ng7 Qa5 Rhb1 h1N Ng1 Rf2+ Kd1 Qef8 Bb4 Qfc5 Bf5 Qcb5 Bf8 Ne7 Be6 Qba4+
n2N1QR1/nQ1N3K/2R5/2pNnr1q/7k/1RP1Bq2/1PPBq3/2Bq1brB w - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 f5 exf5 e6 a4 Bb4 axb5 Bc3 dxc3 Qh4 Qd3 Qe7 Qd1 Qd8 Ke2 Ke7 Kd3 Kf6 Ke4 a5 h4 g5 f4 c5 b6 d6 h6 e5 b7 a4 h7 g4 h5 g3 h6 g2 Nd2 a3 Ndf3 a2 Ng5 Ra5 Qd5 Ra8 N1h3 g1N Ne6 Ne7 Bg2 Qe8 Nd8 Nbc6 b8N Rf8 h8R Na7 h7 Ba6 Qb7 Nd5 Rg8 Bf1 Bf3 Rf7 h8B+ Rg7 Rh2 Nc7 Bh1 Nf3 Rg2 Qh5 Rg6+ Ke7 Rf6 Rg1 Nd7 Rc8 Bg7 Na8 Bh6 Rb8 Nf2 Rc8 Nd3 Rb8 Nb4 d5+ Ke3 d4+ Ke4 d3 Rc6 Qf7 Be3 d2 Bg5+ Qf6 Bh6 d1Q Bd2 Qf8 f6+ Ke8 Kf5 e4 f7+ Ke7 Bc1 e3 Bd2 e2 Bc1 Ng5 Kg6 e1Q f5 Nf3+ Kh7 Ne5 Bhe3 Qed2 Rcg6 Q2e2 f6+ Kd6 Bed2 Qh5+ Rh6 Qde2 Nd5 Rc8 Be3 Rc6 Bcd2 Rb6 Bc1 Rb4 Bcd2 Rf4 Bc1 Rf5 Bed2 Qe8 f8B+ Qe7+ Bg7 Qef3 f7+ Qe6 Bf6 Qe8 Bfg5+ Qe6 N5f6 Ke7 Bge3 Qc4 Nc6+ Ke6 f8Q Qce2 Nd5+ Rf6 Bg5 Kf5 Nd8 Kg4 Bde3 Kg3 Bed2 Rf5 Bge3+ Qhg4 Rb6 Kh4 Rb3 Qg5 Rb1 a1Q Rg6 Qd1 Rc6 Qa6 Ra1 Qae2 Ra4+ Kg3 Rg4+ Kh3 Rg3+ Kh4 Rg2 Qgg4 Rg3 Qh3 Rgg6 Qhg4 Rg8 Qh5+
K2q1R2/1bR1R1p1/1P2Bbn1/Pn2Q2Q/B4NP1/Bb2QNQ1/3b4/r2kn2q w - - 0 1 illegal: No proof kernel
1k3Bb1/1Nrn4/1N2n3/1r3p1N/R2R2P1/n1r1qr1K/1q1PBP2/1QN1Q1QB w - - 0 1 illegal: No possible last move
1R1n1n2/1QqRB2N/qQp2P2/r2r3n/N1Q2b1N/PRP4K/k3qN2/3Bn3 w - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 f5 bxa5 b6 h3 Bb7 gxf5 g4 Qd6 g3 Qd3 Bf3 Qd1 Bg4 hxg4 Be7 Qd2 Bc5 Qd1 Bf8 e4 Kf7 f4 d5 a6 h5 e6+ Kf6 a7 c6 e5+ Ke7 a3 b5 g5 b4 g6 b3 g7 b2 f6+ Ke8 f7+ Ke7 f5 h4 Nc3 b1N Be2 h3 Kf1 d4 Nf3 d3 Na4 d2 c3 h2 Kg2 Rh5 Nh4 Qc7 Qb3 d1Q Qb6 Nd7 Kh3 Nh6 g8Q Nd2 Rb1 g2 Rb3 g1Q Qg4 Qf2 Qc4 Nf3 Re1 Qd3 Bd1 Rd8 a8Q h1N Qab7 Ng3 Rh1 Bg7 f8N Nf7 Nh7 Nf8 Bg5+ Bf6 Re1 Rd5 Re2 Ne1 Rd2 Qde2 Rd3 Ra5 Rd5 Nd8 Rd7+ Ke8 e7 Qff3 Qg4 Kf7 e8R+ Be7 Qgd4 Qa6 Qc4+ Rd5 Bf6 Qe2 Bg5 Ng6 Rh8 Nf8 Bf6 Rg5 Rg8 Nh5 e6+ Ke8 Rh8 Bd6 Be7 Bf4 f6 Rge5 Bd6 Ra5 e7 Red5 Bb4 Kf7 e8N+ Ke6 Be7 Ke5 Nd6 Ke6 Ne4 Ke5 Nf2 Ke6 Qcb5 Ke5 Nh1 Ke4 Qb4+ Kd3 Qc4+ Kd2 Nf2 Kc1 Nb2 Kb1 Na4+ Ka2 Rg8 Ng6 Re8 Nf7 Red8 Nf8 Rb8 Nd8
4n2Q/n1rb3q/QPR3Rr/R1pn1k2/8/Nr1PQNq1/2PBK3/1B1n1QN1 w - - 0 1 legal: proof: e4 d5 exd5 b5 h4 g5 hxg5 e6 f4 b4 g4 b3 g6 Qe7 g7 Qb4 g5 Qd4 g6 Qf6 axb3 Qd8 b4 Be7 b5 Bg5 fxg5 Qf6 Ra3 Qe7 Ra1 Qd8 b4 Kd7 b6 f5 b5 h5 b7 c5 d3 a5 d6 e5 b6 Ke6 d7 f4 Na3 a4 Kd2 h4 Nb5 e4 Qe2 e3+ Ke1 h3 Bd2 f3 Bg2 h2 Qf1 f2+ Ke2 a3 Bd5+ Kf5 Ba2 Qc7 d8N Nf6 g8Q Qh7 g7 Nc6 b8Q Ra7 g6 Rc7 Qb7 Ne8 Nf7 Na7 Bb1 Be6 Ng5 Bd7 Kf3 e2 Qa6 e1Q Qb3 Ke5 g8R Kf5 g7 Qe5 Qb4 Qd6 Ke2 Qg3 Qe1 f1N N5f3 Ne3 Qf1 Nd5 Qd4 Qhh4 Qe3 Rh6 Rh8 Qh5 g8Q Qhg6 Qg7 Qh7 Rg8 Qh4 Nh3 Qg3 Rg1 h1N Qh8 Nf2 Rg6 Nd1 Rc6 Qd6 Ra2 Qf4 Rgg6 Qg3 Rb2 a2 Nhg1 a1R Na3 Ra2 Rb5 Rb2 Ra5 Rb3
q1q1kB2/n2Rp1Pr/3Qq3/R2B1n1q/4nbBR/1K1N2N1/2PQPB2/1b3Q2 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 c4 h4 c3 g6 Bb7 dxc3 Be4 c4 Bb7 c5 Bc8 g4 a5 g5 Ba6 g7 Bb7 h5 Ra6 Qd5 Rb6 Qd1 Rg6 hxg6 Bc8 Kd2 f5 Kc3 h5 b4 d5 c6 h4 b6 h3 b5 f4 b7 h2 c7 d4+ Kb3 f3 b6 d3 Bh3 d2 Qf1 d1Q Bg4 f2 Nf3 Q8d4 Nc3 Qd8 Ne5 Q1d2 Ne4 Rh5 Nd3 Nc6 b8Q Nh6 g8B Na7 g7 Nf5 b7 Qe3 g6 Rh7 Bd5 Be6 g8R Qc8 Ng3 Qe4 Bh6 a4+ Kc3 a3 Kb3 a2 Rd1 Qd8 c8Q a1Q Qc3 Qc8 Qd6 Bf7 b8B Qee6 Rh8 Qaa6 Rg1 h1Q Qd2 Qh5 Ra1 Qac6 Ra5 Qa8 Bc7 Bg8 Bb6 Bg7 Bc5 Be5 Bf8 Bf4 g7 Bf7 Qh3 Bg8 Rd1 f1N Bf2 Bf7 Nh1 N1g3 Qf1 Ne4 Ng3 Nc6 Ra7 Bg8 Rd7 Bf7 Ra1 Na7 Ra5 Qeg6 Ne1 Qh2 Ka2 Rh3 Bc4 Bd5 Nd3 Qe6 Rh6 Qh1 Rf6 Rh7 Rh6 Qh4 Ka3 Qg5 Rh4 Qh5 Ka2 Bc6 Kb2 Bb5 Bd5 Bc4 Ka3 Ba2 Kb2 Bb1 Ka3 Ng5 Kb3 Ne4
K2B2k1/Pp3r1N/8/N2QQ2r/1PB1r3/1nnnQ2P/1QbRbn1R/2bB3R w - - 0 1 illegal: No proof kernel
1R1R3r/3R2q1/1n2kPb1/KBp1r3/rnN2BN1/QBPQ1Q2/2r2Q1P/n6n w - - 0 1 illegal: No possible last move
2Q2r2/QRB1NBRP/1rb2kP1/4p1r1/3rPrnB/b2r4/1Q1Q1n2/1N2R1K1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 c4 d5 cxd5 g4 a4 Qd7 axb5 Qd6 Ra3 Qf6 Ra1 Qg5 fxg5 Rh7 Nc3 Rh6 Nb1 Rh8 Kf2 a5 h4 f5 e4 Kf7 d4 c5 b4 a4 b6 c4 d6 a3 d7 e6 d8B c3 g6+ Kg7 d5 c2 b5 f4 b7 a2 b6 f3 d6 Ra6 d7 Bd6 h6+ Kf8 h5 Nf6 h7 Kg7 Bc7 Ba3 d8Q Rf8 Bg5 c1R Nh3 g3+ Kg1 g2 Q1d2 Rc4 Nf4 Ng4 Nd5 Nc6 b8R Nf2 b7 Rb6 Ne7 Bd7 Bh4 Rd4 Bc4 Ne5 Qc8 Neg4 Rh3 Bc6 Rh2 Rf5 Rh1 Rg5 h6+ Kf6 Rh2 e5 Bf7 Rd3 Qd7 Rb5 Rg8 Rb2 b8Q Rb6 Rg7 Rd4 h8Q Rd3 Nc3 Rd4 Rb1 a1R Re1 Rd1 h7 Rd3 Qb2 Rd4 Qa7 R1d3 Bg3 Rf5 Qhc8 Rf4 Qd5 Bb4 Rh3 Ba3 Nb1 Nh6 Kh2 g1R Bh4+ Rg5 Qda5 Nhg4+ Kg1 Nd1 Qad2 f2+ Kh1 f1R+ Kg2 R1f3 Kg1 Ndf2 Rh1 Rd8 Rh2 R3d4 Rg2 Rh3 Rg3 Rg8 Rb3 Rf8 Rb4 Rhd3 Rb5 Ra6 Rb7 Rb6
BR5b/2kq4/R1n3bN/2P1n3/NB1B1nRP/N2Qp3/2PQrpB1/5rrK w - - 0 1 illegal: No possible last move
2bbNR1B/1n3Q1q/1b1n1QRR/1PPN1K2/2pr4/n3p3/B1kPQ1R1/r4N2 w - - 0 1 illegal: No possible last move
b1R5/qRN5/1BPPp2p/P2NQ2N/4nN1r/5R2/Qb2b1Bk/Knn1rQ2 w - - 0 1 illegal: No proof kernel
b4bBR/2K4r/Np3n1n/1R2nRpP/6k1/Q2bQ1P1/1N1PNq1r/B1B3R1 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 h5 f4 h4 fxe5 h3 Qc2 Qd6 Qh7 Qd7 Nxh3 Qd6 Ng1 Qd8 Kf2 Kd7 Ke3 f5 Kd4 c6 a4 b6 e4 f4 h4 f3 g3 f2 e6+ Ke7 Ke5 c5 a6 c4 h5 c3 d6+ Ke8 a5 g5 e7 Kd7 e8R+ Ne7 a7 c2 a6 Qc7 Nc3 Qb7 Ra5 Bh6 Rf8 Rg8 Rf5 Bf8 Nd1 Qc6 Rb5 Bb7 Nb2 Bc8 Bc4 f1B Ne2 Bg2 Rg1 Rg6 Bg8 Rh6 Qg6 Rh7 Qe6+ Kd8 Qa2 Kd7 Qa3 Bf1 Qe3 Bb7 Qa3 Qc4 Qe3 Qf7 Qa3 Kc6 d7 Kc7 d8B+ Kd7 Nd4 Bd3 Ne2 Nc8 Bf6 Ne7 Kd4 Ke6 e5 Nd7 Bg7 Re8 a8R Bg2 a7 Nf6 Rc8 Ned5 a8N Ng4 Bh8 Nh6 Nc7+ Kd7 Na6 Nf6 Rb8 Ba8 e6+ Kc6 e7 Kd7 Bg7 Ke6 Rgf1 Rc8 Rg1 Rc4+ Ke3 Rh4 e8Q+ Be7 Rc8 Rh3 Kd4 Rh2 Qc6+ Bd6 Qf3 Bf8 Qe3+ Ne4 Be5 Nf6 Rff1 Rf2 Rb8 Kf5 Rd8 Kg4 Rb8 Rh2 Rf5 Ne8 Bh8 Nf6 Ke5 Qc7+ Ke6 Qf4 Re8 Qf2 Bg7 Ne4 Kd7 Nf6+ Kc7 Qe1 Bc4 Nd7 Na4 Bc5 Bcb2 Qf2 Rh8 Bf8 Bgd4 Nf6+ Bf7 c1N Ba1 Bc4 Bdb2 Nd3 Bc1 Ne5 Nb2 Be7 Bd5 Bd3 Bg8 Bf8+
4Nr1R/n2QQ3/Np1RBBnQ/kPnr4/p4BPK/2b1P1R1/q6b/5B1b w - - 0 1 legal: proof: f4 d5 a4 g5 c4 e5 fxe5 g4 cxd5 b6 a5 g3 a6 Bg7 hxg3 Qf6 g4 Qc6 g5 Qb7 axb7 Bf8 Kf2 Kd8 Kg3 h5 d4 f5 b4 a5 g6 c5 e6 Kc7 g7 f4+ Kh4 a4 g4 c4 e7 c3 e8Q c2 Nh3 f3 Qe7+ Nd7 d6+ Kc6 b8Q Kb5 d5 f2 Nf4 Nc5 d7 Ra5 d8R Bb7 d6 Ka6 Rg1 Bh1 d7 Kb5 Be3 c1B Nd5 Bb2 Bf4 Bc3 Qbd6 Ka6 e3+ Rb5 Bc4 f1Q Na3 Qe2 Nf6 Qa2 Be6 Ra5 Rg3 Rb5 Ne8 Ra5 Qf7 Ne7 g8B Nc8 Nb5 Na7 Qfe7 Bh6 Bh7 Rf8 Bd3 Bhg7 Qc6 Bge5 Bf1 Bd6 Rc8 Bc7 d8B Bd6 Kg5 h4 Qdd5 h3 Rd1 h2 Kh4 Bde5 Qdd7 Qa1 Qed6 Nd3 Bg8 Ne1 Bh6 Rf6 Rf3 Nd3 Ng7 Bg2 Qcc5 h1N Nc7+ Kb7 Q6e6 Bh2 Rg3 Qa2 Bf4 Nhf2 Qce5 Rf7 Qh6 Bh1 Bf6 Ne4 Qee7 Ne5 Rd6 Rd5 Rf8 Nc5 Nge8 Rg7 Be6 Rf7 Rg8 Rf8 Rh8 Rd3 Nd5+ Ka6 b5+ Ka5 Ndc7 Rd5 Na6 Ng6+
1b1Qn3/1KB3QP/1bBR2b1/1pN3n1/1Q2NR1B/2r1R3/PP1p1q2/k1n1Qr2 w - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 d4 a4 dxc5 a3 Nxa3 Ra4 Nb5 Ra8 Na7 Rh6 Kd2 Rh7 Ke1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 c4 d5 f4+ Ke4 h4 e5 h6 g4 h5 d4 h7 b6 c6 g3 c7 g2 h6 d3 f6 Kd4 f7 e4 f5 e3 c5 e2 f6 e1N c6 Be7 f8Q Qd6 f7 Bd7 c8Q Bf5 c7 Nc6 Ka6 b5 Kb7 Nb8 Nh3 g1B Bg2 Nc2 Qd7 Bg5 c8Q Ne1 Bf4 d2 Qcd8 Kd3 Bc6 Bg6 Nc8 Qd4 Nb6 Nf6 Na4 Na6 Qb4 Nc7 f8R Ne6 Bc7 Rc8 Qg7 Ne8 Rf4 Rf8 h8B Bf6 h7 Be5 Qe2+ Kc2 Nc5 Nd3 Qe1 Nc1 Ng5 Qf2 Nge4 Ng5 Rh6 Bd6 Ba5 Bb8 Bc7 Bf7 Rd6 Bg6 Rf3 Nb3 Rd1 Nc1 Re3 Kb1 Qgd7 Rg8 Bf6 Rf8 Qg7 Ka1 Be7 Nh3 Bh4 Ng5 Qe2 Qg3 Re1 Rf1 Rf3 Bd4 Rf4 Qf2 Qd1 Be3 Re2 Bd4 Qe1 Be3 Na4 Bd4 Re3 Bb6 Nac5 Ba5 Na4 Qh2 Bb6 Qh3 Bd7 Rc3 Nac5 Qg2 Bc7 Bb6 Bc6 Qf2
RN3Nk1/N4qPr/2B3b1/Q1N2p1b/pRP2n2/2nBK1BQ/1r1n1P1Q/5b2 w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 d5 dxc5 b5 a4 d4 axb5 d3 e3 Bg7 Ra4 Bd7 Ra1 Bd4 exd4 Bc8 Kd2 Kf8 c4 e5 b4 a5 g4 f5 c6 h5 d5 h4 g6 h3 c7 e4 g5 h2 d6 Ra6 b6 Rh3 b5 Rf3 g7+ Kf7 g6+ Ke6 d7 Qe8 d8Q Rh3 b7 Rh5 b6 Ne7 g8B+ Qf7 g7 Rh7 Qh5 Nd5 Nf3 Nf4 Ke3 d2 Nc3 d1B Ne5 Nc6 b8N Nb4 b7 Na2 Qh3 Rb6 Ned7 Rb2 Bd3 Bh5 Na4 Nc3 Rf1 h1B Nf8+ Ke5 Nc5 Bg2 Rg1 Bd7 c8N Be8 Na7 Bf1 Ra4 Bg6 Rb4 a4 Rh1 Bh5 Qa5 Kf6 Rh2 Qg6 Be6 Qf7 Bd7 Ke7 Bc6 Kf6 Kd4 e3 Rh1 e2 Ke3 e1N Bd2 Nb1 Bc3+ Ke7 Be5 Nc3 Rh2 Nf3 Rh1 Ng6 Bg3 Nf4 Nbd7 Qg6 b8Q Kf7 Qg2 Nd2 Qbd8 Nh3 Qh4 Rh6 Nh7 Nf4 Rh3 Bd1 Qh2 Qf6 Qh5+ Kg8 Rh4 Bg6 Qg4 Kf7 Qgh3 Ne6 Re4 Bdh5 Nhf8 Nf4 Re8 Rh7 Ra8 Kg8 Nb8 Qf7
6nn/N2Rp1b1/3pP1b1/3Q1B1N/rqPN2bk/Q3B2r/P3RR1r/2B3KB w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 c5 b4 c4 bxa5 c3 dxc3 Qb6 c4 Qc7 c5 Qd8 Kf2 b5 h4 f5 e4 Kf7 c4 b4 e5 d6 g6+ Kg7 c6 b3 c7 f4 a6 Kh6 a7 b2 g7 Qe8 Nc3 b1R Nge2 Be6 c8B Rh7 Qd5 Na6 Nd4 Nc7 Kg1 Qg6+ Bg2 Nf6 g8N+ Kg7 h6+ Kf7 h5 f3 Rh2 Nce8 Ncb5 Ne4 Nf6 Ng5 Bh1 Bg7 Re2 Rb2 Be3 Rd2 Rf1 Qb1 Bd7 Qb4 Rff2 Rh8 h7 Rd3 h6 Kg6 Bc1 Bg4 Nh5 Nf7 Bc8 Re3 Bf5+ Kg5 e6 Nf6 Ba3 Rhg8 h8B Kh4 h7 Rge8 Bc1 Ng8 Qe5 Rb3 Qd5 Reb8 Be3 Rb6 Bc1 Ra6 Be3 Ra4 Bc1 Rc8 a8R Rb2 Ra7 Ra8 Rd7 Ra3 Rg2 R8a4 Na7 f2+ Kh2 f1B Kg1 Rc2 Rgf2 Rh3 Be3 Bf8 Be5 Bg2 h8Q Bg7 B5f4 Be4 Bc1 Rb2 Bfe3 Bb1 Qh6 Nh8 Qf4 Bc2 Qfe4 Bb1 Qd3 Rd2 Qa3 Bd3 Bh7 Bg6 Rg2 Bh6 Re1 Be8 Bf5 Bg6 Rh2 Rf2 Re2 Bf8 Rg2 Bg7 Rh2 Rf3 Rhg2 Rh2 Rgf2 Rfh3
QR2rQQ1/N1n1p1R1/PQ6/nq1B1RP1/k1p1P2r/r7/1bN2Kb1/3BBb2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 e4 Kd7 h4 b5 d4 c5 a4 f5 a6 c4 h6 b4 h5 f4 a7 b3 a5 f3 a6 b2 h7 Qe8 d6 Kc6 d5+ Kb5 d7 Nf6 d8Q Ng8 h6 Qc6 d6 Qc5 d7 Nf6 Qd5 Bg7 Bd2 Ne8 Qg8 Qd5 Ra5+ Kc6 Na3 b1R+ Kf2 Qf5 Nc2 Qd5 Ne2 Rb6 Ned4+ Kd6 Nc6 Bb2 Be1 Qd3 Rf5 Qb3 Be2 Qb5 Bd1 Nc7 Qdf8 Rb7 d8Q+ Bd7 Rf6+ Kc5 Rf5+ Kb6 Rf1 Bc8 Rf7 Bh3 Rg7 Bg2 Qd6 Nd7 Qg6 Re8 a8B Nb8 Na7+ Nc6 Qd6 Rbb8 Qd8 Na5 Bd5 Rb7 Qa8 Kc5 Qf6 Qa4 Qfe6 Rb3 Qf8 Ra3 Qef6 Rg8 h8Q Qb5 Qh7 Rh8 Qhg8 Re3 h7 Rc3 Nd4 Kb4 Nc2+ Ka4 Qb6 Re3 Rh1 Ra3 Rh6 Nc6 Rf6 Na5 Rf5 Bh1 Kf1 f2 Ke2 f1B+ Kf2 Bhg2 Qgf7 Rg8 h8R Rb8 Qc8 Rd8 Rf8 Rd6 Qg8 Rh6 Qe8 Rh2 Qef7 Rh4 Re8 Rd8 Qff8 Rd7 Rc8 Rd8 Rb8 Re8
1R1N1b2/3pkNQ1/1nB1rn2/2bBr1P1/1rQ2B2/pqB1Q1P1/3P2N1/4bKR1 w - - 0 1 illegal: No proof kernel
1B2BqQ1/2P1r2N/RR3nbQ/nr1QR3/2P1bbN1/kPQB2p1/p4n2/K7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 f5 e4 d5 h4 a5 b6 g5 b7 g4 e6 f4 h6 a4 h7 g3 h5 f3 h6 f2 c6 Kd6 c7 Kc5 b3 d4+ Kb2 Kb4 e5 d3 e7 d2 e8R Ne7 Nf3 Bd7 Bd3 f1N Nh2 Rg8 h8Q Nbc6 b8Q+ Ka5 h7 Nd5 Ng4 Ra7 Rh6 Nfe3 Nc3 Bf5 Ne4 Bg6 Nef6 Bd6 c4 Rb7 e6 Kb4 e7 Rg7 Ra3 Qc8 Ka1 Na5 Qf8 Qd8 h8Q Rb5 Nh7 Bf4 Qfg8 Qd6 Qb6 Nf6 Bb2 Be4 Bd4 Qc5 Qh1 d1B Qb7 Qd6 Ba7 Bc2 Bb8 Nd1 Qbd5 Nf2 Rg6 Rf7 Qh6 Qd8 Ra2 a3 Qh8g7 Nd7 Rb6 Nf6 Rf8 Bg6 e8B Re7 Rf7 Bb1 Re2 a2 Re5 Ka3 Rf8 N6e4 Rff6 Qd6 Ra6 Qc5 Rfb6 Nf6 Qhh1 Qb4 Qe1 Qd6 Qc3 Qd8 Qh6 Qc8 Bf7 Qf8 Be8 Bc2 Be2 Bcf5 Bd3 Be4
qR1NQ1R1/1pKb1B1n/1BNQ3p/4P3/n1B1k3/4r1br/1P5P/QnbN1Q2 w - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 g5 f4 e5 fxg5 a4 dxe5 a3 Be3 Bf5 Ba7 Bh3 Nxa3 Be6 Nb1 Bc8 Kf2 Ke7 Kf3 c5 Ke4 h6 a4 c4 g4 f6 g6 c3 a5 c2 g5 c1B e6 Kd6 a6 Qd7 e7 Nc6 e8Q Rh7 g7 Qd8 g6 Bd7 Nc3 Be6 Nf3 Qc8 Ne5 Qc7 Rg1 Qa5 Bb6 Be7 a7 Nd8 Nc6 Rc8 a8Q f5+ Kd4 f4 e4 f3 Bc4 f2 Qf1 Nf6 g8B Bd7 g7 Rh8 Nd1 Nh7 Bf7 Bh4 g8Q Bg3 Qg5 Rg8 Qd2 Rg4 Ra2 Rh4 Ra3 Rh3 Qa7 Bh4 Rg8 Bg3 Qa8 Qa7 Rc3 Qb8 Qa1 Rc7 Ra3 Qc8 Ra8 Ne6+ Ke3 Qd8 Rb8 Nc5 Kd4 Qc8 Kc3 Qd8 Kb4 Na4 Ka5 Qc8 Ne7 Ke5 d6 Rc6 Qdd3 Kf4 e5 Rc7 Qda3 Ke4 Nc6 Qd8 Qg1 f1N Kb5 Bc8 d7 Nd2 Qf1 Nb1 Ka5 Qe7 d8N Qf8 Qd6 Rd7 Qc7 Rd3 Qd6 Re3 Bd4 Nac3 Kb6 Na4+ Kc7 Bf5 Bb6 Bd7 Qda3 Qc5 Qb4 Qa5 Qd6 Qa8
qB1B4/pN1Pnr1P/k3KB2/n1r5/B1Rb1R2/p1Qb2n1/NbNQ3P/Q7 w - - 0 1 illegal: Other
3b1r2/B2R4/rQ1q1Q2/2nQ1NBR/1N3q1Q/rnNp3p/P2b2PP/k2B3K w - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 c5 f4 g5 fxg5 Bd7 d4 Bc6 dxc5 d4 Bc4 Bd5 exd5 Ra6 Bf1 Ra8 Kf2 Kd7 c4 h5 g6 b5 c6+ Kd6 a6 Ke5 a7 f5 c5 h4 g7 f4 d6 f3 c7 h3 c8Q e6 c6 b4 c7 b3 d7 b2 Ne2 Rh4 Kg1 Ne7 g8Q Nf5 Nf4 Na6 Qb8 Rh6 Be2 Be7 Qb6 Nc5 Nc3 b1Q c8N Qe4 Nfd5 Qf4 Qa4 d3 Be3 Nd4 Rb1 Bf6 Bd1 Ndb3 Qh8 Qe7 d8B Qd6 Nb4 Rg6 Bc1 Kd4 Ne7 e5 Nf5+ Kc4 Qh4 e4 Qac6 e3 Bd2 e2 Be3 e1B Rc1 Bh8 Bg5 Bd2 Bf2 Bf6 Bd4 Rf8 a8Q Bd8 Qab7 Rff6 Qf7+ Re6 Qf6 Rg7 Rc2 Ra7 Qa8 Ra3 Qab7 Be1 Re2 Bd2 Re5 Re7 Qa8 Rea7 Re7 R7a6 Rd7 Qd5 Kf2 Qc6 Rf1 Qcd6 Kg1 f2+ Kh1 Qe6 Be3 Qd6 Re1 f1R+ Bg1 Rf2 Re5 Be3 Ne7 R6a5 Qb5+ Kd4 Ne4 Qg3 Qg7 Rf5 Bh6 Rf8 Qgf6 Na4 Rh5+ Qe5 Qbb7 Ra6 Bg5 Kc4 Qab8 Bd2 Ba7 Qf4 Nf5 Nac5 Q8a8 Qe3 Qb6 Qed4 Nf2 Kc3 Ne4+ Kb2 Nc3 Q4f4 Qd5 Ka1
3nq2k/1NBQ2bB/1N1q4/2R2r1B/N1n1bP2/1p3K1n/NQr1PP1p/QR6 w - - 0 1 illegal: No proof kernel
4b2n/1r1q1b2/2R2nqB/3BKPQ1/p1P1QN2/rkp3P1/1N1R2Nb/B2R1R2 w - - 0 1 illegal: No proof kernel
1r6/2rN4/2R2RN1/Q3np1q/BBqpQQ2/N1nP1BbK/2P1BP2/k1b1n3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 d5 axb5 g5 hxg5 d4 b4 Be6 bxc5 Bd5 exd5 Qc8 Qf3 Qc7 Qd1 Qd8 g4 Kd7 c6+ Kd6 c7 Ke5 c8B a5 b6 f5 g6 h5 d3 h4 g7 a4 d6 e6 b7 h3 d7 h2 g5 a3 g6 a2 Qd2 Qa5 d8Q Qc3 Na3 Nc6 b8N Rh7 Ne2 Nge7 g8Q Qc4 g7 Nd5 Q8a5 Kd6 Bb7 e5 Nf4 e4 Ng6 e3 Be2 Ne5 Kf1 Nc3 Nd7 Rb8 Kg2 Be7 Rg1 Bh4 Qe8 Bg3 g8B Rf7 Rb1 a1B Kh3 Bb2 Bbf3 Rg7 Rg2 h1Q+ Rh2 Qd1 Bgd5 Rf7 Bc6 Qh1 Ba4 Qd1 Bf1 e2 Qf4 e1N Bd2 Bc1 B1e2 Re7 Ndf8 Rc7 Rb7 Qb5 Rb6+ Kc5 Rg2 Nf7 Rf6 Ne5 Qa7+ Kb4 Nd7 Qc4 Rg1 Ng4 Qee4 Ne5 Rc6 Bh4 Bf1 Qe2 Bh1 Qh5 Rg5 Bg3+ Nh4 Qh7 Bf3 Qh5 Be3 Nd5 B1e2 Kc3 Rgg6 Kb2 Qa5 Qb3 Rgf6 Ka1 Bd2 Qc4 Bb4 Qg5 Ng6 Nc3 Qg4 Qh6+ Qh4 Qg5 Qhf4 Qh5+
nBR5/4R1q1/Bk1N1r2/1P1Bb3/PbKq1BP1/3Np1Q1/2pr2QN/2nb1R2 w - - 0 1 illegal: No proof kernel
3B1n2/NRB3r1/Qq5p/2RP2qB/RQ1RK1b1/1Pb3pN/1P4kn/Q1r4q w - - 0 1 illegal: No proof kernel
2b2R2/1NQBq1B1/1bQQ2p1/p5nk/3br2n/Q1P4P/RBK2P2/3qrRN1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 b4 a5 h3 e5 b6 d5 h6 e4 c6 d4 f6 Kg6 h7 d3 b7 Bd6 b5 Kh6 c7 g6 c3 Qe7 b6 Kg5 f7 Bb4 f8R Nc6 b8Q Nd8 b7 Nh6 Bb2 Nf5 Qb3 Ne6 Qa3 Nh4 Ra2 e3+ Kc1 d2+ Kc2 Rg8 h8B e2 Bg7 e1B Bb5 Bc5 Bd7 Bd4 Qa7 Bb6 b8Q Kh5 Qab7 Bd4 Qc6 Ng5 Qbb6 Rb8 Qbc5 Rb4 Q5d6 Ba6 c8Q Bb6 Qcd5 Re4 Qcc7 Bc8 Q5c6 Bd4 Ne2 Bb6 Rf1 Rh8 Ng1 Bd4 Kd3 d1Q+ Nd2 Rg8 Rf4 Re8 Rf8 Qg4 Nc4 Bd2 Kc2 B2e3 Qdc5 Qf3 Nd6 Qh1 Q5d5 Bb6 Qe6 Bed4 Nb7 Qf3 Qed6 Qe2+ Kb1 Qd1+ Bc1 Re1 Kb2 Qf7 Kb1 R8e4 Kb2 Qg4 Kc2 Qe7 Bb2 Qd1#
2nNB3/3r4/1npB2Q1/RRP3b1/q1B4q/2n2PP1/B1bpK2k/N1RrQQ2 w - - 0 1 legal: proof: e4 b5 h4 e5 a4 g5 hxg5 f5 exf5 e4 axb5 e3 dxe3 Ne7 e4 Ng8 e5 Kf7 Qg4 Ke7 Qd1 Ke8 b4 Ke7 c4 d5 g6 h5 b6 a5 g3 d4 b5 d3 b7 d2+ Ke2 h4 g7 c6 e6 Kd6 e7 Ke5 e8B h3 f6 h2 f7 a4 b6 a3 Nh3 a2 Qe1 Qh4 Ba3 Rh6 Ng5 Bf5 Ne6 Ra7 Bd6+ Ke4 c5 Nd7 b8R Be7 f8Q Bg5 b7 Nb6 Nd8 Ne7 g8B Nec8 Na3 Bg6 Rc1 a1Q Nc2 Qa4 Na1 Bh7 Rg1 h1N Ba2 Rh5 Qg8 Kf5 Qg7 Kg4 Qg6 Rh6 Ra8 Rh5 b8Q Rd7 Ra5 Rh6 Rg2 Kh3 f3 Nf2 Rg1+ Kh2 Rb1 Rh5 Rbb5 Nd1 Qa7 Rh6 Qa6 Nc3+ Kf2 Bg8 Bfc4 Bd5 Kf1 Be4 Kf2 Bc2 Kf1 Ncd5 Ke2 Nc3+ Kf2 Nbd5 Qe2 Kh3 Bd3 Nf6 Rb2 Qhb4 Rc1 Nfd5 Qd1 Qf4 Qc4 Rh8 Rbb5 Ndb6 Qce6+ Qg4 Bdc4 Rhh7 Qee4 Rhe7 Qg1 Qh4 Qf1+ Kh2 Qee2 Re4 Qed1 Re1 Qde2 Rd1 Qee1 Ncd5 Ke2 Nc3+
R6B/1b1q4/nQp1B1q1/rNP1N3/Bk1P1B1r/N2Q1R1r/Rp3Pn1/3bK3 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 d5 bxa5 g4 e4 Bh6 exd5 Bg5 hxg5 Bd7 Bc4 Be6 Bf1 Bc8 c4 Kd7 d4 b5 a4 h5 d6 Kc6 g6 e5 d7 b4 a6 b3 f6 g3 g7 g2 a5 b2 f7 h4 f8B e4 c5 h3 a7 e3 a6 h2 Ra2 e2 Nf3 Kb5 Bf4 g1Q Qd3+ Kb4 Na3 c6 Ne5 Nf6 g8B Bb7 Be6 Nd5 Bg7 Rh3 Bh8 Qg6 Rg1 h1B Rg3 Qe7 d8Q Ne3 Rf3 Qd7 Qb6+ Ka4 Kd2 e1R Be2 Rc1 Bf1 Rc3 Ke1 Rb3 Be2 Rb5 Bd1+ Kb4 Rg3 Bf3 Ba4 Bd1 Rf3 Qdf7 Qc7 Ra5 Qd8 Nd7 Qc7 Rd8 a8R Nb8 a7 Na6 Qb8 Qfh7 Qc7 Qd7 Qb6+ Rb5 Rb8 Rf8 a8N Rf5 Rd8 Rfh5 Nc7 Rh7 Ra8 R7h4 Qa7 Ra5 Ncb5 Bc8 Qc7 Bb7 Qb6 Ng2+
3r2B1/b2K4/qp1B2N1/8/1P2PpQ1/B1PR2r1/QqQ1rN2/NRnnkb1Q w - - 0 1 legal: proof: f4 c5 a4 h5 d4 e5 dxc5 h4 fxe5 b6 a5 h3 a6 Nc6 gxh3 Qf6 h4 Nb8 h5 Qg5 Bf4 Qg2 Bc1 Qb7 axb7 Rh7 Be3 Rh6 Bc1 Rh8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 h4 Kg3 b4 Kf2 e4 f5 e6 g5 c3 a5 e7 a4 Kd6 a3 h6 f4 h5 g4 h7 g3 h6 a2 c6 g2 c7 Nc6 b8B Nf6 Bb5 Ng4 Ba3 Ba6 c8Q Na5 Qc2+ Ke1 Bd3 Nf2 Nd2+ Nd1 Nh3+ g1R Bc4 Nb3 Nf2 Nc1 Rh3 Rg3 Rb1 a1Q Nb3 Qb2 Bg8 Bf1 Na1 Bg7 e8Q Be5+ Ke7 d5 Qea4 d4 Bd6 d3 Qg4 d2 Kd7 Ra5 Qab3 Ra6 Qa2 Ra5 Bc5 Bb8 Be7 Ba7 Bd6 Rg1 Rd3 Rg3 Bb3 Rb8 h8N Ra6 h7 Rd8+ Ke7 Ra5 Bg8 Rh5 Ng6 Rh2 h8Q Rhg2 Nh3 Re2 Qh7 Nf2 Qh8 d1Q Ke6 Qd2 Ke7 Nd1 Nf2 Qe3 Qh1 Qc5 Ke6 Qa5 Ke7 Qa6 Ke6 Rc8 Kd7 Rd8+
1n5R/2n1Q3/P2Q1QQB/2p4N/q1R1b2B/qpbB1r1N/kP1NP3/1r2b2K w - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 h5 g4 a4 gxh5 a3 Qa4+ Qd7 Qxa3 Qd6 Qa7 Qd8 Kf2 Kd7 Kg2 c5 d4 g5 a4 f5 h4 g4 h6 f4 h7 g3 h5 Nh6 d6 Kc6 a5 Kb5 d5 Kc4 d7 Kb3 a6 b5 d6 b4 e6 Qe8 d8B Bd7 e7 Bf5 d7 Ng8 h6 Nc6 Nh3 Nb8 Ra4 f3+ Kg1 Bd3 Bg2 Bg7 Qb6 Bf6 Qd6 Bc3 Be3 Be4 Nd2+ Kc2 Rh2 b3 Kh1 f2 Rc4 Nf6 Bg5 Rg8 h8N Nd5 h7 Nc7 Ng6 Rh8 Ngf4 f1Q+ Ng1 Ra7 Bh6 Qa1 Nh5 Qa3 Nh3 Rf8 h8Q Rf3 Qhf6 Ra8 Nf1 Kb1 Nd2+ Ka2 Qg6 Qh8 e8Q Qd4 Bh4 Rf1+ Ng1 Rb1 d8Q Ra7 Qd6f6 Qd7 Qee7 Qda4 Bf3 Rb7 Qdd6 Rb6 Nf1 Rc6 Nh3 g2+ Kg1 Be1 Nd2 Rb6 Rh1 Rb4 Kh2 g1B+ Kg2 Rb7 Rh2 Bd4 Kh1 Bc3 Bg2 Bf5 Be4 Rb4 Bd3 Rb6 Qdd4 Re6 Qdd7 Re3 Qdd6 Rf3 Ng1 Rc1 Bg7 Rd1 Bf2 Ne8 Nf4 Qd7 Rh8 Nc7 Bh6 Qda4 Ngh3 Rc1 Nh5 Be4 Bh4 Rb1
B2q1NrB/2kbN3/P1n3P1/2n1r1Q1/pQqRnPR1/2N3B1/K2b3p/4NQ2 w - - 0 1 illegal: No proof kernel
6B1/1K1RQn1q/p1b1Q3/kP2pnPn/r1Q3N1/3NqBB1/r1RP4/N1b4B w - - 0 1 illegal: No possible last move
2R3r1/K1B2n2/pbQQr3/P5BP/1pRqbn1N/4N2r/1PBk1qR1/4N1N1 w - - 0 1 illegal: No possible last move
2Rnq3/7P/B3bQ2/1KQ3Bk/Q4rqb/BnPP1p1N/2nrp1NR/4N2N w - - 0 1 illegal: No proof kernel
1k2NqQq/rN2R1bP/1b1P3p/PRnn1b1K/6B1/p2R4/2NB3r/NQ3Q2 w - - 0 1 illegal: No proof kernel
5RN1/RQ1QK2p/2BQqB2/2bN1bP1/R4PPb/rN3r2/1pqnR2n/7k w - - 0 1 illegal: No possible last move
1Bkn1R1r/2BR1PQ1/bn3B1q/3QPN2/8/K2BbNpq/1Q1Pbp2/2rR4 w - - 0 1 illegal: No proof kernel
5B1b/Q2Q1P2/R7/p1nNPNK1/Rr1qbN1N/5p1Q/1Pk1rn2/1qr1BB2 w - - 0 1 illegal: No proof kernel
1R2rb2/nK2QPQr/1P4nR/2q3RB/2RN3k/3pPB2/2pNb1r1/B1q4N w - - 0 1 illegal: No proof kernel
3nNR1Q/k4pNB/q5B1/RqbP4/1r3BK1/1nQ1b1p1/1R4PP/r2QnR2 w - - 0 1 illegal: No proof kernel
1bNR4/2N1P1NR/6qB/r1K1n1pP/r3R1B1/1B5R/1b3pQP/q1k1nbQ1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 d4 f5 b4 a5 e6+ Kd6 b6 c4 b5 c3 e7 c2 e8B g6 b7 a4 b6 a3 Nf3 a2 Nfd2 Nh6 Bf7 Qh4 Nc3 Ra5 Nb5+ Ke7 d6+ Kf6 d5 Kg5 d7 f4+ Kd4 f3+ e4 Kf4 d8R f2 d6 Ng4 e5 Bf5 e6 Qg5 d7 Ra6 e7 Ra3 Be2 Ra6 Kc5 Ke3 Nc4+ Ke4 Re1 Nc6 b8Q Bg7 b7 Bb2 Nc7 Nd4 Nb6 Ne5 Bb3 Ndf3 Qa8 Bh3 Nc8 Ra4 Be3 Qf5 Bh6 g5 b8R+ Ke3 Qb1 Kd2 Qc6 Ng1 Qg2 c1B Bg4 Ngf3 Re4 Qg6 Rb6 Rg8 Rf6 Rh8 Rf7 Ne1 Rh7 Rg8 Rf8 Rh8 d8N Rg8 Rf3 Rf8 Nde6 Rf5 Qh1 Bf1 Qg2 Bc3 Rfe3 B1b2 Rh3 Ba5 Nb5 Bc7 Ng7 Bb8 Nc7 Rf3 Rd4+ Rd3 Rd8 Rdd4 Qbe4 Ra6 Qg1 Ra3 Rc1 a1Q Rc4 Ra2 Ra4 Kc1 Qeg2 Rf4 Re4 Ra6 Ree3 Rfa4 Re4 R6a5+
2rR2B1/3P1nbK/Bk1P2pP/2b2b1p/1BRr4/N3NR1Q/3R3n/3qQNq1 w - - 0 1 illegal: No proof kernel
N1R1BnQ1/2PP2B1/RQ1q4/b7/rr2b2B/rR2qp2/PNQ1p2k/2K1Rn2 w - - 0 1 illegal: No proof kernel
B4NQ1/B1PpQN2/rn1qb1N1/2P3K1/bk1rP1n1/N2p4/1b2Rq1Q/3R3R w - - 0 1 illegal: Other
4r2k/KPB3n1/2rrR3/R2N2p1/bbB1RBpN/1q2n1QP/3QP2R/q5N1 w - - 0 1 illegal: Other
2B1q3/QPk1b2b/B1Pr1B1p/R5Q1/B4RPQ/1N2b1nn/1q2rpN1/3K2N1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 c4 a5 e4 d5 g4 Kd7 b4 f5 c6+ Kc7 e6 d4 e7 h6 e8N+ Kb6 g6 d3 c5+ Ka7 g7 a4 b6+ Ka6 c7 Kb7 b5 a3 e5 a2 e6 f4 e7 f3 Bb2 Ra3 Nd2 Nf6 g8Q Nc6 Nb3 Nb4 Ng7 Ne4 e8B Bf5 Ne6 Ng3 Bf6 Nd5 Nf4 Bh7 Qg5 Be7 Ng2 Nf4 c8B+ Kb8 b7 Kc7 Qc2 d2+ Kd1 Nh3 Qcf5 Rf8 Qh4 Ra6 Qfg5 Rd6 Bed7 Qe8 b8Q+ Kd8 b6 f2 b7 Rh8 Rc1 a1B Ba4 Bd4 c6 Be3 Qa7 Kc7 Rc4 Rg8 Rf4 Rg6 Ba6 Re6 Kc2 d1Q+ Kb2 Qa1+ Kc2 Qb2+ Kd1 Kd8 Nf3 Re4 Re1 Re5 Ng1 Kc7 Re2 Re4 Rc2 Re5 Rc5 Re6 Ra5 Re4 Bg7 Rd6+ Bd4 Bd2 Bc3 Re2 Bf6 Be3+
8/1pn4Q/2bQ2rR/3N3N/BR1qBP1k/1n1NPBqp/P1K5/Rr2Bqb1 w - - 0 1 illegal: No proof kernel
Q3N1Rb/p1q3q1/QRPBB3/3N1rn1/P1QN1n2/1KN1pRb1/3k3P/2rn4 w - - 0 1 legal: proof: g4 d5 e4 c5 exd5 e5 b4 h5 gxh5 e4 bxc5 e3 f3 Bf5 Ba3 Ne7 Bc1 Be4 fxe4 Ng8 a4 Kd7 d4 b5 c4 g5 c6+ Kd6 c7 f5 c8N+ Kc7 c5 b4 e5 f4 h6 g4 h7 g3 e6 g2 e7 b3 e8N+ Kd7 d6 Ke6 d7 Kd5 Qc2 b2 Kd1 f3 Ne2 g1B Qc4+ Ke4 Kc2 f2 Bh3 f1Q Kb3 Bg7 Nb6 Qg2 Be6 Ne7 Nd5 Bf2 Rf1 Bg3 Rf3 Qc7 d8R Rf8 h8Q Na6 Qh6 Rc8 Rd6 Rf5 Rb6 B7e5 Bd2 Qg1 Bb4 Bh8 Qf6 Ng6 c6 Nf4 Bd6 Rd8 Qf7 Rb8 Qb5 Rd8 Qa5 Kd3 Nbc3 Qg2 Rg1 b1N Qg8 Kd2 Qg4 Nb4 Qa6 Nh3 Qe4 Nd3 Qh4 Bf2 Qf4 Qg6 Rg5 Qgf7 Rg8 Ng5 Qe4 Nf4 Qed3+ Ke1 Qdc4 Qh7 Ne7 Bg3 d5 Qg7 Nd4 Ne4 Bc5 Ng5 d6 Kd2 d7 Rb8 d8Q Rb7 Ned5 Rb8 Ncb5 Nc3 Bd6 Nd1 Nbc3 Rb7 Rb4 Rb5 Qa8 Rc5 Rb6 Rb5+ Ka3 Rb1 Ka2 Ra1+ Kb3 Rc1
2K1Q3/pQ5q/PrRPQNr1/B4n2/1qb4b/1BpQ3R/B4kPN/2q1nN2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 c4 d4 cxb5 d3 exd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 f5 Kf4 c5 a4 h5 b4 h4 d4 h3 g6 c4 a5 h2 d6 Ke6 g7 Kd5 b6 Qh4+ Qg4 Rh6 e6 Qd8 a6 Rh7 b5 Be7 b7 Nc6 b8N Qf8 b6 Bh4 d7 Qf6 d8Q+ Bd7 e7 Rh5 e8Q Nge7 g8B+ Qf7 b7 Be1 Nf3 Nb4 Bd2 Nc2 Ba5 Bh4 Nbd2 Rg5 Rc1 Rg6 Bd3 Ne1 Bc2 Qe6 Nf1 Qf7 Qh3 Qe6 Qb6 Bb5 Nd7 Rb8 Bb3 Qf7 N3d2 Qe6 Qd3 Qf7 Nf3 Qe6 Rg1 h1Q Rc3 Qh3 N3h2 Qf7 Ba2 Qe6 Rb3 c3 Rh1 Bc4 Rb1 Rc8 b8Q Rc6 Qb3 Rb6 Qb7+ Kd6 d5 Qe2 Rc1 Qb2 Nf6 Kc5 Ke5 f4 d6 f3 Rb1 f2 Bd5 Nf5 Ke6 Qa3 Kd7 Qa4+ Kc8 Qb4 Qg3 Kd4 Bg8 Bb5 Qbe6 Bc4 Qgf3 Qa3 Rb5 Qb4 Qfe2 Qd3 Rc5 Qdb1 Rc6 Qd3 Nd2 f1Q Qd1 Qf4 Ndf1 Qh6 Bf7 Qh7 Qde2 Qe3 Qf3 Kd3 Qfd5+ Ke2 Qd3+ Kf2 Qed5 Rb5 Nf3 Qeh6 Rh3 Qc1 N3h2 Rb6 Q5e4 Bb5 Bfb3 Bc4 Q4e5 Qd2 Q5e6 Qc1
2R2NKb/p2n2P1/2r2qB1/2Q1P1R1/rP3RnN/QbQ1Q3/p2B3k/N1q3q1 w - - 0 1 illegal: Other
1N1n1Qq1/pQP4P/K1Q4b/3Nr1bk/4p3/1R4Qb/1PB2B1B/qR1r2nN w - - 0 1 illegal: No possible last move, all moves rejected
n1nrQ1N1/2b1Bn2/3PQ1BN/NqrK2R1/1PR2Bp1/4BRPb/3n1p1k/8 w - - 0 1 illegal: No possible last move
bN6/b3kBpR/B4N2/Q1npr1B1/3bP1r1/K1P1RbR1/qB2P2Q/2Nn4 w - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 h5 gxh5 e5 a4 e4 axb5 e3 fxe3 Nh6 e4 Ng8 Kd2 a5 Kc3 f5 Kb3 d5 h4 a4+ Ka3 f4 b4 f3 c3 f2 b6 Qd7 b5 Ra6 b7 Kf7 b6 Ke7 h6 Kd8 h7 Bd6 h5 Bf8 h6 Qf7 Nh3 Qe8 Nd2 Bg4 Nf4 Qc6 Nh5 Nd7 b8B Bf3 b7 Ne7 Bf4 Nf5 b8N Ne3 Bh3 f1B Nf6 Qa8 Be6 Bh3 Nb3 Ke7 c6 Nc5 Bf7 Bc8 c7 Bb7 c8B Re6 Bg5 Re5 Rh3 Qa5 Rb1 Ba8 Bb2 Qa7 Qf1 Nd1 Nc1 Qa6 Qe1 Qc4 Ba6 Qa2+ Kb4 a3 Rg3 Bg4 Re3 Bf3 Ra1 Qb1 Qd2 a2 Qd3 Qc2 Qb5 Qd2 Rb1 a1B Qa5 Qc2 Ba3 Bb2 Ra1 Rg8 h8Q Qb1 h7 Qa2 Nd3 Bc1 Bb2 Bd2 Nc1 Be1 Bf4 Rg5 Rb1 Rg4 Bg5 Bg3 Ra1 Be5 Rb1 Qc4+ Ka3 Bd4 Nd3 Nf2 Rg1 Nd1 Nc1 Qa2+ Kb4 Kd6 Rg3 Be7 Nh5 Re8 Nf6 Qc4+ Ka3 Bf8 Qg8 Re5 h8R Ke7 Qh7 Qa2+ Kb4 Kd6 Qh2 Be7 Rhh3 Bd8 Rh7 Ke7 Bd3 Bb6 Ba6 Qc4+ Ka3 Ba7 Bb7 Qa6 Bc8 Qc4 Ba6 Qa2+
1R2r3/B4P2/pbbN3N/3P4/1qP1Qp1r/2BB2Rn/3RbNQ1/N1k1nK1b w - - 0 1 illegal: No proof kernel
3R3B/3Nnp1k/r2BN1R1/1QN1pBq1/2P1Q2b/3P1rR1/3b1KP1/b2bNn2 w - - 0 1 illegal: No proof kernel
1bB2nB1/2Np2n1/7r/Pbq5/2Q2Kp1/RQ3RB1/2R1PPr1/NQ1bbBk1 w - - 0 1 illegal: No proof kernel
k2b1B2/qbQp4/pP1N2r1/2Q3b1/BN3N1R/1RQn1n1Q/P1KP4/3bBr2 w - - 0 1 legal: proof: e4 b5 c4 f5 exf5 g5 cxb5 c5 h4 c4 hxg5 c3 bxc3 Na6 c4 Nb8 c5 Ba6 Be2 Bb7 Bf1 Bc8 g4 e5 f4 h5 c6 h4 b6 a6 c7 e4 f6 e3 f5 e2 f7+ Ke7 f6+ Kd6 g6 Kc6 g7 Kb7 g5 h3 g6 h2 Ba3 Rh6 Nc3 Be7 f8B Rh8 f7 Rh6 Nd5 Nf6 g8Q Rh8 g7 Rh3 Qh8 Rh7 g8Q Nc6 Nb4 Rh4 Qb3 Ng4 Qbc3 Rh6 Rb1 Bg5 Rb3 Nge5 Nh3 Nd4 Nf4 Rg6 Qhh3 Rb8 Bd6 Ka8 f8Q Bb7 c8N Qc7 Qgc4 Bf3 Qc5 Qa7 Qd8 Bg4 Qdc7 Ndf3+ Kf2 e1B+ Ke3 Bd8 Bb5 Beh4 Ba4 Nd3 Ke2 Bh5 Kd1 Bhg5 Kc2 Bg4 Bf8 Bh5 Nd6 Rc8 Rg1 h1B Rg4 Rb8 Bb2 Nh4 Q3c4 Rf6 Bh6 Rg6 Ne6 Bde7 Bd4 Bb7 Bf2 Rf8 Qc3 Bd8 Be1 Rf1 Rf4 Bg4 Bf8 Be2 Rg4 Nf3 Rh4 Bc6 Nf4 Be4 Qh8 Bb7 Qhc3 Bd1+
1N2bN2/N1PB3b/PB4nK/1P4Rq/1b3BQ1/Q3Q1p1/1p1QbR1r/n1r4k w - - 0 1 illegal: No possible last move
1Rn2qrN/BbpP2k1/1rBN2B1/bRNR4/KP5Q/rRr1P3/1Q2p3/1n6 w - - 0 1 illegal: No possible last move
2Q2NQR/KPrB2Pn/1n3N2/B4rk1/1RQ5/R5pp/2q1NP1b/1b1nn1N1 w - - 0 1 illegal: No proof kernel
2Kn4/QP1Pq1rn/2n2QNp/4B2R/RNB5/P1QBb3/2b1np1Q/N1kr4 w - - 0 1 illegal: No proof kernel
B1r2nR1/NpnP4/1b3RNQ/4rQP1/npQ1PR1n/k5KQ/6N1/1b1qB3 w - - 0 1 illegal: Other
5q2/P4N2/bnK2NRQ/BQP2bQ1/BRp3nB/1Q1P1rp1/R7/b1r2k1b w - - 0 1 illegal: No proof kernel
R1N1N2B/Rb1r2pn/p2K2PP/1r1Q1P2/7k/BB1Q4/q2Rr3/B1q1N1bq w - - 0 1 illegal: No proof kernel
5k2/1Nn4b/1bb1R2K/BP2p1q1/1NnPn1QB/1N1Qpr2/4P3/q1QR1BB1 w - - 0 1 illegal: Other
B7/2bB1P2/1pPn4/1Ppb4/K2NkN1Q/r1RN1rb1/Q3qB2/1QRN1rq1 w - - 0 1 illegal: No proof kernel
2QN4/qB6/Q1R2QPB/N2BN1pk/4qn2/1n1brPP1/b3n2p/1Rb1K2Q w - - 0 1 legal: proof: e4 c5 a4 g5 h4 f5 exf5 b5 axb5 a5 d4 Bg7 dxc5 Ra6 h5 Rg6 hxg6 Bf8 b4 d5 c4 e5 b6 h5 f6 e4 f7+ Ke7 b5 Kf6 b7 a4 b6 a3 c6 d4 c7 e3 c5 e2 g3 a2 c6 d3 Nf3 h4 Nbd2 h3 Ba3 h2 Rb1 a1N Nc4 Qd7 Nfe5 Ne7 f3 Kg7 Na5 Kh6 Bc5 Bg7 f8Q Kh5 Qf6 Nd5 Bf8 Nb3 Bh3 Qe7 Be6 Nf4 Bd5 Be6 c8Q Rh7 c7 Nc6 b8N Ncd4 b7 d2+ Kf2 Bf5 Nbc6 Bd3 b8Q Bh8 Qg1 d1B Qb6 B1c2 Rc1 Bb1 Nd8 Ba2 Bh6 Qc5 Qb5 Qa7 Rc6 Re7 Qba6 Re8 Ke1 Re6 Nef7 Re3 Ne5 Bg7 Qg2 Bf8 Rg1 Ba3 Qh1 Bb2 Qb8 Bc1 c8B Nb5 Bb7 Nc3 Kf2 Ne6 Qc8 e1Q+ Kg2 Ne2 Rf1 Qb4 Kf2 Qg4 Rd1 N6f4 Ke1 Ba3 Rb1 Bc1 Rc3 Qf5 Rc6 Qe4
1N2nBbq/1R1B4/Pq1B2R1/P5p1/1QnN4/NnpKb1P1/k1b2r2/2Q2R1B w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 c4 f5 cxd5 b5 exf5 Qd6 h4 Ra6 h5 Rb6 Bb2 Qd7 Bc1 Rg6 hxg6 Qd8 Ke2 Kd7 a4 Kd6 f4 Kc5 d4+ Kb4 g3 c5 f6 e5 f7 h5 g7 h4 a6 e4 f5 h3 a5 h2 f6 c4 d6 c3 d5 e3 d7 Nc6 d6 Qb6 d8R Bg4+ Kd3 e2 d7 e1Q Na3 Qe8 Bg2 Nd4 Rb8 Bc5 d8N Nb3 Rb7 Be3 f8B+ Ka4 f7 b4 Qf1 Nf6 g8B Bd1 Nf3 Qe5 Rb1 Ne8 Nc6 Rh7 Ra1 Qh8 Nfd4 Rh6 Bd6 Rf6 f8Q Rf7 Rb1 Rf2 Rg1 h1B Be6 Qa7 Bf3 Qb6 Bd7 Bg2 Qf4 Bh3 Bg2 Be6 Bh1 Bg8 Qe1 Nd2 Qg4 b3 Rf1 b2 Bf8 Nc4 Nb8+ Qc6 Rb6 Qb5 Rg6 Qc6 Ndb5 Kb3 Nd4+ Ka2 Bd2 Qb6 Qh4 Bh5 Qc1 Bd1 Ne2 Bc5 Bf4 Be3 B4d6 Kb3 Ra1 b1N Qd4 Nbd2 Rb1+ Ka2 Qg4 Qc6 Rb7 Nb3 Qd4 Qc7 Qb6 Qc6 Qb4 Qb6 Nd4 Bc2+
1b3N1R/3P1B2/1nr1B3/prpQ4/1nN4n/qkPQ2P1/1Bq1B3/RNq1K1R1 w - - 0 1 legal: proof: f4 d5 e4 g5 exd5 b5 fxg5 b4 h3 Bg4 hxg4 b3 axb3 Qd7 b4 Qc8 b5 Qd8 d4 Kd7 b4 Kd6 g6 e5 g7 h5 b6 f5 g5 c5 b7 a5 c3 e4 b5 e3 b6 f4 g6 h4 g3 f3 Bd3 f2+ Ke2 h3 Nf3 h2 Ne5 Nc6 b8N Nb4 b7 Rh6 Bb2 Ne7 g8B Nc8 g7 Nb6 Rg1 h1Q Nbd7 Rb8 Be6 f1N g8B Nd2 Ba6 Nf3 Qd3 Nh4 Ke1 e2 Bgf7 Qg5 Bc4 Qg2 Bb5 Be7 Nf8 Bd8 Ba6 Bc7 Bb5 Rd8 b8R Qc1+ Qd1 Qc2 Qd3 Rg6 Ra8 Rb8 Bc4 Qb3 Ba6 Qa3 Nc4+ Ke7 Bb5 Rb7 Rd8 Bb8 d6+ Kf6 d5 Qe4 Qd2 Qc2 d7 Ke7 d6+ Kf6 Ne3 Ke5 Nc4+ Ke4 Qg5 Kd3 Re8 Qca4 d8Q Kc2 Qd5 Kb3 d7 Rh6 Qf6 Rg6 Qf1 Rh6 Bh3 Rc6 Ba6 Qa2 Bhe6 Q4a3 Bc1 Qc2 Bb2 Na8 Qff3 Rb5 Qfd3 Nb6 Ng6 Qa2 Rh8 Qa3 Nf8 Nf3+ Kf2 Ne1 Bb7 Rc8 Q5f5 Ng2 Bf3 Nh4 Qfd5 Rc7 Ke3 e1Q+ Be2 Qed2+ Kf2 Rc6 Kf1 Qf4+ Ke1 Qfc1+
K1n3b1/p1n4B/2R2r1N/PbB4N/1q1Q3n/k1b2P1N/1q1RP1pB/2R2QR1 w - - 0 1 legal: proof: g4 e5 b4 c5 bxc5 b5 d4 g5 dxe5 f5 gxf5 g4 h4 Na6 Bb2 Rb8 Bc1 Rb6 Qd3 Rg6 Qd1 Rg5 hxg5 Qb6 Bf4 Qc7 Bc1 Qd8 Kd2 Ke7 Ke3 d5 Kd4 h5 a4 h4 c4 h3 c6 b4 g6 b3 a5 b2 e6 Kd6 g7 g3 f3 h2 e7 Rh7 e8Q Rh5 f6 Be7 f7 Bh3 f8B Be6 c5+ Kc7 Bf4+ Qd6 Bh3 g2 Qf1 Bd7 Bf5 Rh7 Nd2 b1B Ra2 Rh6 Ne4 Bf6+ Qe5 Ne7 g8N Be6 Rb2 Bd3 Nh3 Bb5 Rg1 h1N Bh2 Ng3 Bh7 Bg7 Nef6 Ngf5+ Kc3 Bf7 Nh5 Nh4 Kd4 Re6 Nh6 Bg8 Ke3 d4+ Ke4 d3 Ra2 Kd8 c7+ Kd7 c8R d2 Rb2 d1Q Rd2 Qa1 Rc7+ Ke8 c6 Rg6 Qc3 Qb2 Qc5 Bd4 Qc4 Rf6 Rc8+ Qd8 c7 Kd7 Qd3 Kc6 Qe3 Qd6 Qd3 Bc3 Qd4 Qdb4 Ke5 Ba4 Ke4 Kb5 Ke5 Rf7 Ke6 Rf6+ Kd7 Bab3 Kd8 Ka4 Kd7 Bbc4 Kd8 Nef5 Kd7 Nd6 Kc6 Ka3 Be7 Nb5+ Kb7 Nd6+ Ka8 Bd3 Re8 Bdc4 c8R Bb5 Rc5 Nc8 Bf8 Nd6 Re6 Nc8 Rec6 Nc7+ Kb7 Qa1 Bfd6 Bb2 Rc1 Bc3 Bc5 Qb2 Kb8 Nd5 Ka8 Nc7+
bb1RBn2/K1B3kp/R1pN3N/R1n2P2/4B2P/Q4rqN/P2q1b2/2B2Qn1 w - - 0 1 illegal: No possible last move
KQ6/BPR4r/2q3pQ/k2P2N1/p3qR1N/3BbbPr/BQn1BqR1/7r w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 h4 g6 h5 d3 h6 Na6 cxd3 Nc5 d4 Ne6 d5 Ng7 hxg7 Ba6 Rh4 Bb7 Rh1 Bc8 Kf2 Kd7 Ke3 c5 Ke4 Kc7 d4 Kb6 b4 a5 g3 h5 e6 c4 d6 f5+ Kd5 f4 e4 h4 e5 f3 e7 a4 e8R f2 d7 h3 e6 c3 e7 h2 Be2 f1R Be3 c2 Nd2 c1Q Nh3 Ba6 Rg1 h1Q+ Rg2 Qdc8 d8Q+ Q8c7 Qc2 Rd1 Qb2 Qc3 Ng5 Rc8 Rc1 Re1 Ndf3 Nh6 g8B Rb8 Nh4 Bg7 Rf8 Bc8 e8B Rh7 Rf4 Kb7 b6 Qd3 Bb5 Qg1 Qf8 Ng4 Rc2 Bh8 Qh6 Qf2 Rc6 Qc2 Bbd3 Rh1 b5 Qe7 Rc3 Qe4+ Kd6 Bd7 Ba2 Bc6 Rc5 Bg7 Rc4 Rbh8 d5 Bd7 Bd4 Ne3 Rc8 Bg4 Rc7+ Kb8 b7 Bf3 Bb6 Bd4 Bc5 Qc1 Kc6 Nc2 Kb6 Bg7 Be3 Bd4+ Kc6 Bc5 Bd4 Ka7 Be3 Qc4 b6+ Ka6 b8Q Ka5 Kb7 Qe4 Ka8 Bd4 b7 Bb6 Bd4 Rh3 Bg7 Be3 Bd4 Rh1 Ba7 Rh3 Qhg7 Rh1 Nf5 R7h3 Nh4 Rh7 Qgh8 Na3 Qhg7 Qc6 Qh6 Nc2
RBKNBbkq/2Q1rr2/3Q1q2/1q1pPp2/4n2R/Q1NQ1rN1/1P1B1P2/1n6 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 h4 c4 h3 b6 Be7 gxh3 Bb7 h4 Bc6 h5 Bb5 cxb5 Bf8 Kd2 g5 Ke3 d5 Kd4 f5 h4 Kf7 e4 a5 h6 a4 h5 a3 b7 g4 e6+ Kf6 b6 c6 e7 Kf7 Ke5 c5 h7 c4 e8Q+ Kg7 Ke6 a2 e5 c3 Qea4 c2 Rh4 g3 Nc3 g2 Bb5 Nd7 b8B Ra7 b7 Ngf6 Qd3 Nb6 Be8 Ne4 Bd2 c1Q Nge2 g1Q Qa3 Qgf1 Ng3 Nc4 Qd6 Qg5 Kd7 Na3 Kc8 Nb1 Qa3 Rg8 h8N Qf6 h6+ Kh7 Qd6 Rg7 Nf7 Kg8 Nd8 Rf7 Qc7 Qc2 Qd6 Qh3 Qc7 Qb3 h7+ Kg7 Qd6 Qb5 h8Q+ Kg6 Qh5+ Kg7 Qhf3 Kg8 Bc7 Ra3 b8Q Ra7 Qbb6 Rb7 Bb8 Rbe7 Qbc7 Qh1 Rf4 Qhh8 Rh4 Na3 Rg1 a1R Qfe3 Ra2 Ra1 Nb1 Qea7 Ra4 Qac5 Rd4 Ra8 Rc4 Qa3 Rd4 Qe3 Rd3 Qd4 Re3 Qd3 Rf3
1rN2B1k/pPB1pqq1/P1bq1Q1b/1N6/2b1P1RK/1Q1B1Q2/8/Rn1B1n1N w - - 0 2 legal: proof: f4 c5 c4 g5 fxg5 b5 cxb5 c4 d4 c3 h4 c2 g6 Nh6 Be3 c1R Bd2 Rc5 dxc5 Ng8 Bh6 Bg7 Bc1 Bf8 g4 Bh6 g5 Bf8 h5 Na6 g7 Rb8 Kd2 Rb6 Ke1 Rg6 hxg6 Qc7 Nf3 Qb6 Ng1 Qd8 Kf2 d5 Kg3 f5 b4 h5 a4 d4 e4 d3 c6 f4+ Kh4 f3 c7 d2 a5 f2 b6 Nb8 a6 Bd7 c8N Bf5 b5 Qd6 b7 Nc6 b8B Be6 b6 Nh6 g8B Ne5 b7 Nhg4 g7 Ne3 g6 Bc4 Qf3 d1B Ne2 Ba4 Ng3 Bc6 Bd3 f1Q Bc7 Qg1 Bd2 Nf1 Na3 Qgd4 Nb5 Qf2 Kh3 h4 Bh6 Qa2 Qf6 Nf3 Rg1 N3d2 Nh1 Nb1 Rg4 Qb2 Qf3 Qbf6 Bd5 Qf7 g8Q Qg7 Qe6 Qf7 Bg5 Bh6 Qef6 O-O g7 Ba2 Bb3 Rd8 Ba4 Bc4 Bd1 Re8 Kg2 h3+ Kf2 h2 Kg2 Qdd5 Kh3 Qd6 Kh4 Rf8 Nb6 Rb8 Nc8 Kh7 Qc3 Kg6 g8Q+ Qg7 Qe6+ Kh7 Bf6 Qf7 Bg7 Kg8 Qa3 Kh7 Bf8 Kh8 Qb3 Qg7 Nf2 Qf7 Qe5+ Qg7 Qef6 h1Q+ Qh3 Qf3 Nh1 Qf5 Qe3 Qg6 Qef3 Qf7
4bb2/nnPB1q2/NP2Qp1k/2pr1B2/4N2B/qRK2QQQ/1RP5/n2Nq3 w - - 0 1 legal: proof: f4 c5 d4 b5 g4 h5 gxh5 a5 a4 e5 axb5 Nc6 fxe5 Nb8 d5 Ra6 Bf4 Qg5 Bc1 Rc6 dxc6 Qd8 Kd2 g5 e4 d5 h4 g4 b4 a4 b6 d4 e6 f6 c7 g3 e5 a3 h6 a2 h5 d3 h7 g2 b7 Qd7 e7 Kf7 e8B+ Kg7 b5 Qe6 b6 Qf5 e6 Qg4 e7 Nd7 b8N Qe2+ Kc3 d2 Na6 Qf2 Bd3 Qf4 Nf3 g1Q Bf5 Qgh2 Ng5 Qfg3+ Qf3 d1Q Ne4 Bb7 Bg5 Bc6 Bh4 Qhe2 Rh3 Ne5 Bed7 Nf7 e8Q Nd8 Qe6 Qg6 Rg3 Ne7 Rh3 Kh6 Rg3 Rg8 h8Q+ Qh7 Rh3 Rg2 Qhg8 Qc1 Qgg3 Bb5 Na3 Qf7 Nc4 Qef1 Ne3 Nc8 Rb1 a1N Rb2 Nb7 Nd1 Na7 Qgf2 Rg6 Q2g3 Kg7 h6+ Kh7 Bc8 Be8 Bd7 Qe1+ Kc4 Kg8 h7+ Kg7 Kd3 Rg5 Kc4 Qf2 Kc3 Kh6 h8Q+ Qh7 Qhg8 Rh5 Q8g4 Qf7 Rh1 Qe2 Q4h3 Qf2 Re1 Qf1 Re3 Qe1+ Kc4 Rg5 Reb3 Rh5 Bh7 Rd5 Bf5 Qf2 Kc3 Qg1 Ra2 Qa3 Rb2 Qe1+
B1b3Br/1p3PqQ/qQ1N3B/N1r1R3/1Pq2b2/p1BN2PR/3Q1r1n/1k5K w - - 0 1 illegal: No proof kernel
K1b1N2Q/q1rq3p/pR2q3/1rB3b1/2Q1B1P1/2bBnPBN/PR4Q1/k1N5 w - - 0 1 illegal: No possible last move
2Q1rR1N/p1rp2B1/n1k1b2Q/3n1QKP/2q4P/5N1R/1r1Pq1BB/1n1R1Q2 w - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 h5 a4 e6 e4 h4 exf5 h3 a5 Kf7 gxh3 Bc5 h4 Ke8 h5 Bb6 axb6 Ke7 Ra6 Kf7 Ra1 Ke8 Ke2 g5 Ke3 c5 f4 g4 h4 g3 b7 e5 f6 g2 b6 c4 f7+ Ke7 f8Q+ Ke6 b5 Kd5 f5 c3 f6 e4 Kf4 e3 f7 e2 Na3 e1N Qh6 c2 f8R Rh7 Nf3 g1Q Bb2 c1R Rh3 Rc3 Nc4 Na6 b8Q Bb7 Nd6 Qc7 Bg2 Qh2+ Kg5 Nf6 Nf7 Qc4 Qc8 Rb8 Nh8 Nc2 Qf1 Re7 Rd1 Re8 Ba1 Ba8 b7 Na3 b6 Nb1 Bb2 Qe2 Ba1 Qc7 Bb2 Qcc4 Qc5+ Ke6 Qf5+ Kd6 Ba1 Rc2 Bd4 Rbc8 b8B+ Rc7 b7 Rb2 Be5+ Kc5 Bc3+ Nd5 Bg7 Rc6 Bf4 Rc7 b8Q Bc6 Qc8 Ba4 Bd6+ Kc6 Qf7 Bc2 Qfg6 Bf5 Bh2+ Be6 Qgh7 Qa4 Qf5 Qac4
Rb5Q/Qqp1QpN1/bP1nKP2/1kbN4/8/b2n1RN1/PN1rB2b/2B3R1 w - - 0 1 illegal: Other
1R1RBkrn/Q1Q4r/N2p3b/2q2P2/PN1P2RK/3r2B1/r1prB1N1/2B2b2 w - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Nc6 c3 Na7 c4 Nb5 cxb5 Ba6 Be2 Bb7 Bf1 Bc8 h4 g5 f4 e5 Kf2 c5 Kg3 e4 a4 c4 d4 d6 b6 c3 a6 e3 h6 b3 h7 e2 h5 e1R b7 g4 b8N b2 h6 Ne7 f6 Nd5 a7 Nb4 f7+ Ke7 f5 Qa5 Ne2 Qd8 Na6 Nd5 Rg1 Qa5 Kh4 g3 Nf4 g2 Qc2 Ne3 Be2 Nd5 Na3 Qc5 Rb1 Bg7 f8R Rd1 Rd8 Rg8 h8B Rd2 h7 Bh6 Be5 Rh8 Nd3 Nf4 Ndb4 Rg8 h8Q Ng6+ Kh5 Rg7 Bg3 Rh7 Nc4 Bd7 Qg8 Bb5 Ne3 Nh8 Kh4 Rb8 a8B Rd3 Qcb3 c2 Bc6 Bc4 Be8 Rb5 Qg5+ Kf8 Qc3 Rb8 Re1 g1R Ng2 Rf1 Qg6 Rf2 Rg1 Ra8 Qe6 Rb8 Qd7 Bb5 Bd1 Rfd2 Qa7 Rc8 Be2 Bc4 Ra1 b1R Ra3 Rb2 Rb3 Ra2 Rb1 Bb5 Rb2 Qd5 Qcc7 Qc4 Rf1 Qc5 Rf4 Rb3 Rg4 Bd3 Bd1 Bf1 Be2 Rbd3 Nd5 Rf7 Rb8 Rg7 Ndb4 Rg8 Qcb7 Rc7 Qc8 Rf7 Qcc7 Rh7
K5k1/1q3R1N/2QP3b/1ppNBr1R/n1nQnNr1/2P2B1N/n1P3QB/5n2 w - - 0 1 illegal: No proof kernel
bB1BR3/B3n1r1/1pp2NP1/3R1q2/KPNQ2R1/3B1N2/4bP2/brk1bbQ1 w - - 0 1 illegal: No proof kernel
2QnK3/k1N1p3/Bn1nPP1q/1Q1rBb2/3N4/4Qrr1/B1N1pQ1P/n1R3R1 w - - 0 1 illegal: Other
R2rK3/2p1Q1B1/2r1R1pb/2n2r1n/QRBN2PN/N2R4/3Q1P1P/kq1n3n w - - 0 1 illegal: No proof kernel
N3BB1N/3Qr2k/1QQRn3/2B2rp1/p1R2r2/PP1n2P1/5nK1/r1q1N1bN w - - 0 2 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 f5 exf5 b4 h5 Bb7 c3 Be4 cxb4 Bd5 b5 Bf7 Kd2 Bh6 Ke1 Bg6 hxg6 Bf8 f4 d5 Kf2 h5 c6 a5 c7 e5 c8N h4 b6 h3 g3 h2 g7 Kf7 b3 a4 a3 e4 f6 Kg6 f7 d4 b7 e3+ Kg2 d3 f5+ Kh6 f6 e2 Nc3 e1R Be3 d2 Rc1 Qd3 Nf3 Qf5 Nb6 Qc8 Ne4 Qc2 Bb5 Qc6 Nf2 Ra5 Na8 Bc5 f8N Ne7 g8Q Nd7 b8Q Nd5 f7 Nb4 Ng6 Nf8 Qb6 Rh7 Rg1 h1R Nh8 Rh4 Nh1 Rf4 Qc2 d1N Qg7+ Kh5 Qc4 Ne6 f8B Qc7 Qgd4 Re7 Qd8 Bd4 Bd7 Raf5 Be8+ Rff7 Qcd5 Rf1 Rc6 Nd3 Rd6 Qc3 Qdc6 Qe1 Ng6 R7f5 Qdd7 Bc5 Bd2 Bf2 Be3 Qd2 Bd4 Re1 Rf1 Bg1+ Rf2 Qc3 Rc2 N1f2 Bc5 Ra1 Ne1 Qd2 Rc4 Qc1 Qa5 Ng7 Qac7 Kh6 Q7b6 Kh7 Nh8 Ne6
NnB1n3/2Pp1Q2/2r1Qr2/1b2Nqn1/k2P1N1Q/3Pr2B/NR1p3B/1R1K2n1 w - - 0 1 illegal: Other
R1n4Q/KR1N1n2/3r3q/1prk3r/3rpQ1B/n2bBP1B/RPP5/1N1QQ3 w - - 0 1 legal: proof: e4 f5 exf5 c5 g4 b5 a4 h5 gxh5 c4 a5 c3 dxc3 e6 c4 Bd6 c5 Bc7 Qg4 Qe7 Qd1 Bb6 axb6 Qd8 Kd2 Kf7 Ke3 g5 Kd4 a5 h4 d5 b7 Nh6 f6 a4 c6 a3 Kc5 g4 c7 e5 Kb6 Ke6 f7 d4 f8B d3 Nf3 g3 Be7 d2 Qe2 Nc6 b8Q d1R Qe1 g2 Rh3 e4 Ne5 Qd6 Be3 Ra4 Rh1 Bd7 c8Q g1R f3 Rg5 Qd8 Na7+ Kb7 Rc4 Rg1 Rf5 Rg7 Rf6 Ka8 Rc5 Qbc7 Be8 Kb8 Bf7 Bh3+ Nf5 h6 Nc8 h7 a2 h5 Rg6 h6 Qc6 Na3 Qa6 Rb1 a1N Bh4 Nb3 Ra1 Nd2 Nb1 Nc4 Ra2 Na3 Qdd2 Qd6 Qc1 Rd4 Qcd1 Rg5 Ka8 Rd8 Kb7 Rh5 h8R Na7 h7 Bg8 Ng4 Nh6 Nf6+ Ke5 Qb8 Bc4 Rf8 Be2 h8Q Bd3 Qc7 Rd7 Ra8 Rd8 Qf7 Nc8 Qff8 Qe6 Rc7 R8d6 Nd7+ Kd5 Qf4 Qf6 Kb8 Nf7 Rb7 Ne7 Ka7 Qe6 Rg8 Qh6 Ra8 Nc8+
1n3BK1/NR2n3/1pbr1PB1/PQR1R3/2r1Nk1n/Br5q/1P3N1p/3n1BQ1 w - - 0 1 illegal: No proof kernel
3kNB2/p2n1PN1/2p4K/3RR1N1/Bn1Q2RQ/5rr1/Pr1bP2r/1R2Qnq1 w - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 g5 c4 f5 cxb5 Bb7 h3 Bf3 gxf5 g4 Kd2 g3 Ke1 Bg4 hxg4 Qh4 Qd5 Qg5 Qd1 Qd8 Kd2 d5 Ke3 h5 Kf4 d4 b4 d3 f6 h4 Kg5 h3 f4 g2 b6 d2 e6 h2 e7 Na6 f7+ Kd7 b7 Nb8 b5 Qc8 e8R Bd6 b6 Ba3 f8N+ Kd6 f5 Na6 b8Q Rh6 b7 Rh4 f6 Kc6 f7 Nb4 Nf3 g1N Qe1 d1R Bg2 Nh6 Re5 Nd5 Nbd2 Qe8 Rb1 Bc5 Nc4 Qe6 Qd8 Rd2 b8Q Nb4 Ba3 Rb2 Qd4 Ng8 Qbd8 Nf6 Nd6 Rh3 Ne8 Nd7 Rd1 Qc4 Ne6 Qc1+ Rd2 Rg3 N6g7 Rb8 Kh6 Bf8 Ng5+ Nf3 Rf1 h1R+ Bh3 Nh2 Rd1 Qc2 Rff5 Qc3 Rb1 Qc5 Bg2+ Kb6 Bc6 Rc8 Ba4 Nf1+ Nh3 Be7 g5 Rh2 g6 Rb8 Qh4 Qg1 Ng5 Rbb3 Rd5 Rbf3 Rfe5 Bd6 Qf6 c6 Qf4 Kb7 Qg4 Kc8 Qd4 Na6 Bb4 Kd8 Ba3 Bc7 Bf8 Rbb3 Nh5 Rb4 g7 Rb2 g8R Ba5 Rg6 Bd2 Nhg7 Rb5 Rf6 Rb7 Rf4 Rb2 Rg4 Nb4
QRn2k2/1QPnN2p/1b5P/5KR1/N1Rp4/1PRb1nB1/1Q5q/BBrq1n2 w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 a5 g5 Qc7 f5 Kd8 f7 Ra6 Ra4 Rf6 gxf6 Qb6 Ra1 Kc7 Bh6 Kb7 Bd2 Qd8 Bc1 Kc7 Kf2 d5 Kg3 Kd7 Kg4 e5 c4 g5 h4 e4 b6 d4 b7 e3 h5 a4 h6 a3 b3 e2 c6+ Kd6 c7 e1N c5+ Kd7 c6+ Kd6 Rh5 a2 Bd3 Bg7 f8R Nd7 b8Q Nf3 f7 Ke7 f6+ Ke6 Qb7 Kd6 Kf5 g4 Qd2 g3 Nh3 g2 Nf4 g1Q Nd5 Qe7 Nbc3 Qe8 Rg5 Qee1 Bb2 Qh2 Na4 Qd1 Rc1 a1N Bb1 Nc2 Rd8 Bf8 Ba1 Be7 Rf8 Bd8 Ne7 Qh4 Re8 Qh2 f8Q Ne3+ Ke4 Nc4 f7 Ne3 Rc3 Nf1 Qb2 Ke6 Qb8 Ba6 c8R Kf6 Qb7 Be2 Rb8 Bc7 Rec8 Bb6 Qd8 Ke6 f8B Kf7 Kf5 Ba6 Nd5 Be2 Bd6 Ne7+ Kg4 Ba5 Bg3 Bb6 Rc7 Nc8 Ne7 Re8 Kf4 Kf8 Kf5 Nde5 Qd5 Rd8 Qa5 Rd5 Qaa8 Rc5 Rd7 Rc4 c7 Rc6 Rd5 Nd7 Rb5 Rc4 Rb4 Rc6 Rd3 Rc2 Rc4 Rc1 Rdc3 Bd3+
R3Kb2/1Q1RR2b/1B3p1k/N3rP1P/b2bNP2/p2n3B/1B4Bn/q1q1QN2 w - - 0 1 legal: proof: d4 b5 e4 a5 g4 c5 dxc5 h5 gxh5 b4 f4 b3 axb3 Ra6 b4 Rf6 b5 Rf5 exf5 Ba6 Qd6 Bb7 Qd1 Bc8 Kf2 e5 Kf3 d5 Kg4 g5 b4 d4 h4 a4 c4 a3 c6 d3 b6 f6 c5 Kf7 c7 Kg7 c6 e4 b5 e3 h6+ Kh7 Kh5 g4 b7 d2 b6 g3 Nc3 e2 Nf3 e1B Bb2 g2 Nh2 g1Q Ne4 Qgd4 Bh3 Q4d7 Nf1 Bg3 Qe1 Bb4 Rd1 Na6 b8N Bc3 b7 Qd5 Rg1 Be6 c8Q Qf8 c7 Qfc5 Nc6 Bf2 b8B Bb4 Na5 Qdd4 Ba7 Qc1 Qb7 Bf8 Bb6 Nc5 c8B+ Bf7+ Rg6 Nd3 Bd7 Qdc3 Bc6 Bd4 Bd5 Ne7 Bc6 Bg8 Bd5 Qa1 Rg3 Qc7 Re3 Ng6 Bc6 Nge5 Re2 Bc4 Re3 Nf3 Re2 Kg8 Kg6 Nh2 h5 Rh7 Re3 Re7 h7+ Kh8 Bd5 Re5 Re2 Qc6 Kf7 Bb3 Re3 Qcc1 Re2 Be7 Ke8 Kg7 Bc6 Bg8 h8R Bh7 Ng5 Nc5 Bcg2 Kh6 Ne4 Nd3 Kf7 Rc5 Ra8 Bf8 Ke8 Rb5 Nd6 Rc5 Re7 Re5 Ne4 Qc7 Rc1 d1B Rc6 Bc2 Rd6 Ba4+ Rd7 Qcc1
1RN1bK2/N7/1r1P4/4Bb1B/1PR3p1/bNQ1Qp2/bQ1n1PkB/1qN1r1q1 w - - 0 1 illegal: No proof kernel
r2r2Nq/2R3Q1/B2pbRPK/b2P3N/N1B1R1rP/Q1Rqp2k/n2B4/6r1 w - - 0 1 illegal: No possible last move
7q/Q1Q2rrn/1B1K3P/3pr1B1/2QP1N2/pB4bP/1B1Rn2r/qNR1Nk2 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 d6 b4 Ba6 b6 Nc6 b7 Rc8 b5 Ra8 b6 Bb5 cxb5 Nb8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 h6 e5 f6 g5 f7 a5 f5 c5 f6 g4 Qb3 g3 Ra2 g2 Bb2 a4 Nf3 g1R Ne1 Nc6 b8B a3 b7 Nd4 b6 Ne2 Ba7 Rg7 b8Q d5+ Kb5 c4 Kc6 c3 b7 c2 Bb6 Ra6 Qc7 Ra7 b8Q Bd6 f8N c1Q+ Qc2+ Kf4 f7 e4 Qc4 Nf6 Ne6+ Kg4 Qa8 Bg3 Nf4 e3 Kc5 Rb7 Qa7 Nh7 Rg1 Qb8 Kd6 Kh4 Bg2 Qc3 Be4 Kg4 Bc2 Qg8 Nd3 Kf3 Ne1+ Kf2 Bb3 Qa8 Rg2+ Kf1 Ra1 Re8 f8B Re5 Be7 Qh8 Bg5 Qc1 Qc8 Rbf7 d4 Qd1 Nc3 Qb1 h3 Qa2 Rd1 Qa1 Q4c7 Ng1 Rc1 e2 Ned3+ e1R Rd2 Re2 Nb1 Rh2 Qca6 Ne2 Qac4 Nc3 Rcc2 Re3 Ne1+ Ne2 Rc1 Re5
1b2Kn1b/Q3R1P1/4B1bk/1Q2R1q1/3p2pN/B2PN3/nR4PB/2qBb1rN w - - 1 2 legal: proof: e4 c5 a4 g5 h4 b5 axb5 f5 exf5 a5 b4 g4 bxc5 Ra6 Bc4 Rg6 Bf1 Rg5 hxg5 Qc7 Nf3 Qb6 Ng1 Qd8 Ke2 Kf7 Ke3 Kg7 Kf4 d5 Ke5 h5 c4 e6 f4 h4 b6 d4 b7 a4 c6 a3 g6 a2 c7 h3 c5 h2 d3 Bd7 c8R Rh5 c6 Ne7 Kd6 e5 f6+ Kh6 f7 e4 f5+ e3 f6 Qe8 c7 Rg5 Nc3 e2 Rb1 e1B Be2 a1B Rb2 Bc6 Qa4 Be4 Bd1 Nd7 b8B Bd2 Qa7 Bf3 Nd5 Kh5 Nh3 Nc5 Re1 h1Q Nf2 Rf5 Re5 Nb3 Ne3 Qb5 Re8 Bg7 c8B Kh6 f8Q Be4 f7 Qe1 Nh1 Rf1 Bf5 Rg1 Be6 Qf1 Qg8 Bh8 g7 Ng6 Re7 Nf8 Kc7 Bf5 Kd8 Bg6 Bc7 Qd5+ Ke8 Ba5 Bd6 Bc7 Ba3 Bb8 Bd2 Bd6 Ba5 Bb8 Bc7 Nc1 Bcd6 Na2 Bc7 Bh5 Bcd6 Ng6 f8N Qe1 Qf7 Qc3 Qf5 Qc1 Rc2 Bc3 Rb2 Be1 Bc7 Nf4+ Ng6 Qa5 Kd7 Qad2 Nh4 Ng6 Ke8 Qa5 Re4 Qd5 Bh2 Qdc5 Re5 Nf8+ Bf7 Qd5 Qfd7 Bg6 Qb5 Be4 Be6 Bh7 Re4 Qg5 Re5 Bg6+
R5q1/Q1npR1r1/1np2N1q/2P1bN1B/n5BP/B4nQ1/Rrk1N2P/2B3K1 w - - 0 1 legal: proof: d4 b5 e4 e5 dxe5 h5 a4 h4 axb5 h3 gxh3 Be7 f4 Bb7 h4 Bd5 f5 Be6 fxe6 Bf8 Kf2 Ke7 b4 f5 c4 g5 b6 a5 b5 a4 b7 f4 b6 g4 Qc2 a3 Nd2 f3 Qa2 c6 Ne2 g3+ Kg1 g2 Nb3 Bg7 Nbd4 Na6 b8Q Rh7 b7 Nf6 Qc7 Bh8 b8B Nd5 Ba7 Qg8 Bc5+ Ke8 e7 Kf7 e8R Kg6 e6 Rg7 e7 Rb8 e5 Nb6 Qa7 Nc7 Qb3 a2 e6 Kf6 Rd8 Ke5 e8N Ke4 e7 Na4 Qc3 Rb2 Nf5 Nb6 Qe1 Kd3 Qg3 Kc2 Nf6 Na4 e8B Nb6 Rb1 a1N Ba3 Nb3 Ra8 Nc5 Ra1 Nca4 c5 Qf8 Ra2 Qg8 Kf2 g1N Bf7 Ncd5 Bh3 Nc7 Kf1 f2 Bg4 Nf3 Bg6 Ne6 Kg2 Nc7 Rg1 f1Q+ Kh1 Nd2 B6h5 Qf4 Re1 Qh6 Kg1 Rh7 Ne4 Be5 Nf6 Rg7 Nc3 Bd6 Re7 Be5 Ne2 Nf3+
2N4Q/PBn1pR2/p1q1Q3/1rb1qRB1/Pk5b/1B2QnQ1/PNKbb3/7R w - - 0 1 illegal: No proof kernel
1KQNb3/1p1B2nP/1Q3B1R/b3n3/1Pq5/1RRNBp2/kP1r4/1bQq1R1b w - - 0 1 illegal: No proof kernel
2R3n1/3P4/1pQR1r2/1BKR4/4N1kN/1PBB1rqb/p1QbP2q/q3Q1Qq w - - 0 1 illegal: No possible last move, all moves rejected
1n2k1nN/pr4Pn/1q1P2b1/7R/P3rq2/KB2BR1n/Q1N1BpN1/B3RQ2 w - - 0 1 legal: proof: e4 d5 exd5 c5 g4 g5 b4 e6 bxc5 Ne7 h4 Rg8 hxg5 Qd7 f4 Qb5 f5 Qb4 g6 Qa5 g5 Rh8 f6 Bg7 fxg7 Ng8 Ba6 Qc7 Bf1 Qd8 d4 b5 Kd2 f5 Kc3 h5 Kb4 f4 c4 e5 a4 e4 c6 h4 c7 h3 c5 e3 c6 e2 d6 e1N d7+ Ke7 d5 h2 d6+ Ke6 Ne2 f3 Nf4+ Ke5 Na3 f2 Be2 Qe8 d8B Rh4 Nc2 Nd3+ Ka3 Qe7 Ng2 Ke6 Qf1 Nf4 Be3 Qf7 Re1 Nh3 Bf6 Re4 Ba1 Bb7 c8R Qf4 c7 Kd7 Rf8 b4+ Kb2 b3 c8N Bd5 Ka3 b2 Ne7 b1Q Rf5 Qb6 Rf7 Nf6 g8B Ke8 g7 Nh7 Ng6 Ba2 Rf5 Bf7 Nh8 Bh5 Bb3 Bg6 Rg1 h1N g8Q+ Kd7 Qc4 Ng3 Rh1 Nh5 Qd5 N5f6 Qg8 Qg3 Rf3 Qf4 Qc4 Ke8 Rh2 Bf5 g6 Ng8 g7 Bg6 Qd5 Na6 Rh1 Rb8 Rh2 Rb7 Qc4 Ng1 Rh5 Nb8 Qd4 Qd8 Qb2 Qb6 Qa2 Nh3
1q3q2/p1rK1Q2/R5r1/B3PNQ1/BnB1p3/1rb1P1r1/P1kNR1RQ/1b5R w - - 1 2 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 e4 b4 Nd7 bxc5 Ne5 fxe5 Bf5 Qc2 Bg4 Qd1 Bc8 Kf2 Kd7 Kg3 b5 Kg4 g5 Kf5 f6 h4 b4 d4 g4 e3 g3 h6 b3 h7 g2 h5 b2 d6 Kc6+ d7 Kd5 c6 Bg7 c7 Bh6 Bd2 Qf8 Ne2 Kc4 Ke6 Kd3 d5 g1Q d6 f5 Ba5+ Kc4 Nd2+ Kd3 Qa4 f4 Re1 Bb7 d8Q b1R c8B f3 d7 f2 Qg5 Ne7 d8R+ Nd5 Qe8 Ba6 Bd7 Rc8 Ba4 Rb3 Qf7 Rc7 Rd6 Rg8 h8Q Kc2 Ng3 Nb4 Bc4 f1R Nf5 Rf3 Re2 Rg3 Rhh2 Qa1 Rhg2 Qb1 Rc6 Bg7 h6 Bf6 h7 Rg6 Rb6 Bb5 Ra6 Be7+ Qhf6 Bc5 h8R Bd4 Rh1 Bc3 Qh4 Qb2 Qh2 Qb1 Bd5 Bd3 Bc4 Qb8 Kd6 Qf1 Ke6 Kc1 Kd6 Bb1 Ke6 Kc2 Kd6 Rc6+ Kd7 Qf4 Q6g7 Qh6 Qgf6 Qhf8 Qg5 Rc7+
2b1b2Q/R1p1R1R1/Nn6/k1P1NbP1/3bBp1B/1n1K1Q1b/B1Q2r1P/2r2B2 w - - 0 1 illegal: Other
1NknbQN1/3n1Q2/4NRrQ/KrP2pR1/1B3PpB/3r1r2/B1bP4/4B1b1 w - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 d5 gxh5 b4 exd5 Qa5 a4 Qb5 axb5 Bg4 Ra5 Bh3 Ra1 Bc8 c6 Kd8 f4 e5 c4 a5 h4 f5 c5 g5 c7+ Kd7 d6 b3 b6 e4 h6 g4 h7 e3 b7 a4 h5 e2 h6 a3 Nh3 a2 Ba3 b2 Qb3 Ne7 Qf7 Ra4 Ng5 Rg8 h8B Re4 h7 Nc6 Rh5 Nb4 Bf6 Rc4 h8Q Rd4 Nc3 b1B Nd5 Re4 Qh6 Kc6 b8N+ Kb7 d7 Rd4 d8B Nec6 Ne7 Rg6 Ng8 Bg7 Bg2 Be6 Bd5 Bd7 Be6 Ne5 c8Q+ Ka8 Bde7 Nbc6 Qcf8 Kb7 Kf2 Rb4 Ke3 Nd8 Bb3 Rb5 Kd4 e1R Kc3 Kc8 Be6 Ra5 Kb4 Rb5+ Ka4 Rg1 Bb4 Rg3 Bd5 Be4 Re1 a1R+ Ba2 Rc3 Re3 Rf1 Re2 Rb6+ Ka5 Be8 Re3 Nd7 Rd3 Rb3 Rd6 Rff3 Bd4 Nf6 Bf2 Nd7 Be1 Bd4 Bf6 Bg1 Be7 Rg7 Rg6 Rb7 Ne6 Bc2 B7h4 Rbd3 Rf6 Rg6 Rg5 Rb5+
Q3rk2/pKPR2NR/Pnp2B2/P1b3nQ/3B1rbQ/N1Nr1B1B/4r3/1b6 w - - 0 1 illegal: No proof kernel
Q2q1bB1/pN3p1q/P1P3NB/1bR1nb2/KQ3P2/b7/2BR1QQ1/kb1nR3 w - - 0 1 legal: proof: g4 e5 b4 g5 d4 c5 bxc5 b5 dxe5 h5 h3 Na6 Bf4 h4 Be3 Rh5 gxh5 g4 Bc1 g3 Qd4 Rb8 Qd1 Rb6 Nf3 Rg6 Ng1 Rg4 hxg4 Qb6 Bd2 Qf6 Bc1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb3 d5 e4 b4 c4 d4 a4 g2 h6 d3 a5 h3 g5 d2 c6 h2 c5 Nf6 h7 Qe7 h8Q Qd7 c7 Nh7 g6 Qd4 g7 Nf6 g8B Bd6 Bd3 Nh7 Qe2 d1B+ Bc2 Ng5 Nc3 Qd5+ Ka4 b3 Qf6+ Kd7 e6+ Kc6 e7 b2 e8Q+ Bd7 c8R+ Nc7 e5 b1Q e6 Bf8 a6 Nf3 Bh6 Ne5 Nh3 g1B e7+ Qd6 Nb5 Kd5 c6 Bf5 Rd8 Kc5 f3 Nd5 Qg2 Kc4 Nf4 Bc5 Re1 h1B Ng6 Be2 f4 Bb4 Qh4 Ne3 Qhf2 Nd1 Qd7 Qc7 e8Q Ba3 Nd6+ Kc3 Nb7 Kb2 Qde7 Bc4 Rd2 Qd8 Qh2 Bhe4 Qhg2 Qd5 Qa8 Qd8 Bb3+ Qc2 Qb4 Bf1 Ra2+ Kb1 Rb2+ Ka1 Rd5 Qd3 Rd2 Qh3 Rc5 Bb1 Bc2 Qh5 Bg7 Qh7 Bh6 Bb5+
2q2Q2/3k2qN/1nNnr3/nn3pp1/qR4P1/N1BBQ1RQ/2P2Pr1/1N2KB2 w - - 0 1 legal: proof: h4 c5 d4 g5 a4 d5 e3 b5 axb5 Bf5 h5 Bg6 hxg6 Bg7 dxc5 d4 Ra3 d3 Ra1 Bd4 exd4 Qc8 Be2 Qc7 Bf1 Qd8 b4 e5 g4 f5 b6 h5 g7 a5 b5 h4 b7 e4 d5 h3 d6 e3 b6 h2 c6 e2 d7+ Ke7 c7 a4 c8B a3 Bd2 a2 Na3 Ra6 Rb1 a1N Qc1 Nh6 Rb4 Nf7 Bc3 Nd6 Nf3 Nb3 Rg1 h1Q Nd2 Qc6 Ndb1 Na5 Rg3 Qa4 g8N+ Ke6 Qd2 Rh2 Nf6 Rg2 Nh7 Qh8 d8Q+ Nd7 b8N Qg7 Qh8 Ke7 b7 Nb6 Nf8 Kd8 Qe3 Kc7 Kd2 e1N Qh3 Nf3+ Kd1 d2 Nc6 Nd4 Nh7 N4b5 Bd7 Ndc8 Be6 Ncd6 Bec4 Kd7 b8Q Ra8 Qh8 Re8 Qf8 Re4 Ke2 Re6 Kf3 d1Q+ Bce2 Qdd4 Bd3 Qc5 Ke2 Qc4 Ke1 Qc5 Na7 Qc7 Nc6 Qc8
3NqBRB/1b2bR2/8/1Q1R1n1k/3P1B2/Nnpp1Pp1/1KP1BrN1/2brQ3 w - - 0 1 illegal: No possible last move
1B2N2k/Q2B2qB/b2r3Q/2n1pR2/QPp4p/2PP1bNr/K4r2/2R1nB1N w - - 0 1 legal: proof: e4 d5 exd5 b5 h4 g5 hxg5 e6 f4 b4 g4 b3 g6 Qe7 g7 Qb4 g5 Qd4 g6 Qf6 axb3 Qd8 b4 Be7 b5 Bg5 fxg5 Qf6 Ra3 Qe7 Ra1 Qd8 b4 h5 c3 a5 b6 f5 d6 c5 d3 f4 Kd2 c4 Kc2 h4 Kb2 a4 d7+ Ke7 b7 a3+ Ka2 f3 Ne2 f2 Qa4 Rh7 Bf4 Qb6 Nd2 Rh6 Ne4 Na6 b8Q Qd4 N4g3 Nf6 g8N+ Kf8 d8Q+ Kg7 Qdb6 Ne4 Nf6 Nd2 Q8a7+ Kh8 Ne8 Nf3 Rc1 Nc5 Bb8 Ne1 Rh2 e5 Nh1 Ba6 Neg3 Qg4 g7+ Kg8 Qac6 Rd6 Qa4 Kh7 g8B+ Kh8 g6 Qd7 Kb1 Qg7 Be6 a2+ Kb2 a1R Bd7 Ra2+ Kb1 Re2 Ka1 Re3 Ka2 Rd4 Qf6 Rd6 Qg5 Rf3 Qh6+ Kg8 Bfh3 f1B Rf2 Be2 Bf1 Re3 Rf5 Bh5 Ne4 Rh3 Neg3 Bf3 Qh5 Qh6 g7 Kh7 g8B+ Kh8 Bh7 Qg7 Bc7 Rc8 Bb8 Rcc6 Qh6 Rf6 Rg5 Rcd6 Rh5 Be2 Rg5 Rf2 Rf5 Bf3+
1KQ5/R1R3B1/2B2Q2/pN4Pp/npq1rNB1/r2Nn2R/4P1P1/B1br1k1b w - - 0 1 illegal: Other
6BQ/1r2R3/RBB4P/p1N2p2/P1q1rK1b/nNpb1b1N/2n4P/Q3QB1k w - - 0 1 illegal: No possible last move
b2bK2n/1QB1Q1nN/R3R1P1/q1B2P1B/1pR2Qp1/2Q4N/2rnp2P/2k2r2 w - - 0 1 illegal: No possible last move
2Rq1N2/3R1B2/1QK1Pk2/rN4b1/1bb1PB2/3pp1n1/Qrp1NRnP/1Q5N w - - 0 1 illegal: No proof kernel
2RK4/2q2RB1/2bpQBB1/1p2b3/2P1rPnP/1nQ2n2/4NpNQ/1k1N1Q1r w - - 0 1 illegal: No proof kernel
6B1/5NN1/pR1QRnb1/q1bQ1PK1/2NrpPbp/2B1r1B1/1nRPk3/4B3 w - - 0 1 illegal: No proof kernel
3Q1qbB/n1B3P1/n3QN2/2RQK3/N1p1BBp1/R2PPr2/5bp1/2rkn1N1 w - - 0 1 illegal: Other
2r3Q1/4b1pN/rNnBRBQ1/2PP4/2bp3P/6nB/K1Bk1pRn/R4Qq1 w - - 0 1 illegal: No possible last move
2K5/1B1N1pp1/R2bb2B/3Pr1n1/PrBB1R1p/kqQ4Q/2PN3n/3N2nQ w - - 0 1 illegal: No proof kernel
q2r1N2/rk2PNQ1/1BpR2Kp/1N2b2B/p7/P1R3n1/6P1/R1QRnBrb w - - 0 1 illegal: Other
2Qr2Qn/N1p1rBqN/3k1PN1/1R4pN/b2BPp2/r5b1/2QR1P1n/1K2B3 w - - 0 1 illegal: No proof kernel
k3q1N1/1p1pK3/2RPp3/PQN1bPR1/B3N2n/1R1b2B1/2rN1b2/2QB1nr1 w - - 0 1 illegal: No proof kernel forced: wxLB
kb3B2/N5R1/1qqQBPn1/NP1n3b/5B1p/3P1p2/rp2Nr1R/1RQ1BK2 w - - 0 1 illegal: No proof kernel
KQNR2N1/Q4rb1/2Pp3q/1B1Pp2k/Q2R1q2/R2R1p1N/1b2rn1P/2B2n2 w - - 0 1 illegal: No proof kernel
b2rNq2/2NBk3/1P2Pq1R/1nR1p1Rn/NPpBpR2/1Q3Q2/8/2KQr1b1 w - - 0 1 illegal: Other
2QR2r1/1p1q2N1/k1r2B2/1bB1BBp1/PbPnq3/2Q2R2/2pPn3/1K1N1N1Q w - - 0 1 illegal: No possible last move
7R/Pn1R1n2/2pp1k2/2N1p3/b1PP2Rq/Qr1Brb2/1QqQB3/1NK1B1Q1 w - - 0 1 illegal: No possible last move
2Qb3R/2B1K2N/1R4rN/rQ2PPp1/2Qr4/3pNn1N/3pk1Pq/1BRn2n1 w - - 0 1 illegal: Other
b1B2N2/1P4RB/P1B1p1bN/2r1b2N/n1q3R1/1k2PpnQ/pB3Q2/2KnQ3 w - - 0 1 illegal: No proof kernel
2kBN2K/1b1b3r/p1BpRp2/2r2Q2/P1Q5/br1P3N/RP2R1BR/n2qQ3 w - - 0 2 legal: proof: f4 b5 h4 e5 fxe5 g5 hxg5 a6 c4 Bg7 cxb5 Nc6 b6 Na7 bxa7 Bf8 Kf2 c5 Ke3 h5 Kf4 d6 g4 Kd7 Kf5 c4 a4 h4 e4 h3 g6 c3 e6+ Kc7 g5 h2 d3 c2 e5 Rh5 g7 Rh4 g6 Bb7 e7 Rc4 e8R Rc6 e6 Qb8 e7 Qd8 Nd2 Rc3 Ne4 Ra3 Qe1 Rb8 a8B Rb3 Bg5 c1R Nh3 Kc8 Ra2 Nf6 g8Q Ng4 g7 Ne3+ Kf6 Rc5 Bg2 Nc2 Qh7 Na1 g8Q Bh6 Qhg6 Bc6 Qf5+ Bd7 Bc6 R8b7 Bh4 Bf4 Kg7 Bd2 Kh8 Bb4 Nf6 Ba3 Qgg4 Ra7 Qc4 Rc7 Rf1 h1B Rf2 Ra7 Re2 Rab7 Rf8 Ra7 Ne8 Qa5 Rg8 Rab7 Rg6 Rc7 Rh6 Qd2 Ng7 Qe3 Bgf3 Bb4 Rh2 Qg5 Bcd5 Qh5 Ba8 Be6 e8R+ Kd7 Bad5 Ba3 Bd8 Kc8 Re7 Rd7 Ne8 Qg4 Bfe4 Qd1 Rg6 Ra7 Rgg2 f6 Re2 Bd7 Re6 Bc6 Bg2 Rg7 Bf1 Bd7 Ba8 Bd5 Bg2 Re7 Bc6 Rg7 Bb5 Bb7 Bbc6 Rh7+
4B1qr/r2n1pB1/K1R1pr2/n3P2q/2P2k2/bQQP1p2/QN2B1R1/1BNR4 w - - 0 1 illegal: Other
1NR2Nq1/1nBQ1rP1/2p2pp1/nkP4B/q1r5/3KNRP1/3bR3/3QnRQ1 w - - 1 2 legal: proof: e4 e5 a4 b5 axb5 Bc5 d4 Qh4 dxe5 Ne7 e6 Ng8 e5 Qd8 f3 Bf8 h4 g6 h5 Qf6 h6 Qg7 hxg7 Ba6 Bd3 Bb7 Bf1 Be4 fxe4 Kd8 Ke2 Ke7 Ke1 Ke8 Ke2 a5 b4 d5 c4 h5 b6 a4 c5 h4 b7 a3 e7 Kd7 e8R Kc6 g3 d4 b5+ Kd7 b6 Kc6 e6 h3 e7 h2 e5 a2 e6 f6 Nc3 Rh7 Nh3 Rh4 Kd3 Ra7 Ng5 Nh6 Be2 Nf7 Bh5 Nd6 Nd5 Kb5 Ne3 Nc6 b8Q Na5 b7 c6 Rf1 h1Q Nh7 Qd5 Rc8 Rf4 e8Q Qc4+ Kd2 d3 e7 Qg8 Qd7 Rc4 e8R Be7 Rf3 Bd8 Bb2 Bb6 Rc1 a1N Be5 Nc2 Nf8 Ne1 Qa8 Bd8 b8N Rc7 Qa7 Ndb7 Qd4 Rf7 Bc7 Be7 Qd7 Bd6 Ra1 Bf4 Re4 Nc2 Qg1 Bg5 Raf1 Ne1 Qd4 Ra4 Kc3 d2 Re5 d1Q Qd7 Qb1 Qd1 Rc4+ Kd2 Qa1 Re4 Ng2 Kd3 Qa2 Ng4 Qa4 Re2 Bc1 Ne3 Bd2 Bd6 Nd8 Qd7 Ndb7 Bc7 Ne1+
q2r1QK1/1p1B2B1/1P2p3/n1pqP1qR/RN2BnkP/1QNb1N2/Q5b1/2N5 w - - 1 2 illegal: No proof kernel
3Bk3/3bNrbp/3Qp1BR/1q1b3P/Q2PBr2/n1PQ2q1/p1N4K/5NBR w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 d5 d4 Nc6 dxc5 d4 e3 d3 Na3 Bh6 Nb1 Nd4 exd4 Bf8 Kf2 f5 Kg3 a5 b4 e6 h4 a4 g6 d2 c6 a3 g7 f4+ Kh2 a2 g4 f3 c7 f2 g5 Ra6 c3 Nf6 g8N Ra7 g6 Qe7 b6 Bd7 c8Q+ Qd8 b7 Bg7 b8B Rb7 b5 Rb6 Bg2 f1Q Qc4 Qe1 Na3 Bc8 Ne2 Qd6+ Ng3 Nd5 Ne7 Bb7 Bc7 Qc5 Nc2 Bc8 Qa4 Nb4 Be4 Qg5 Bd8 Nd5 Nf1 Rb7 b6+ Rd7 b7 Ne3 b8Q Qb5 Qd6 Rf8 h5 Bf6 g7 Nc4 g8B Bg7 Rg1 Bb7 Rg6 Rf4 Rh6 Na3 Qf3 d1B Qd3 Bf3 Be3 Bc6 Bg1 Rc7 Rd1 Bd7 Bf7+ Kf8 Bf5 Bd5 Be4 Ra7 Bfg6 Qe3 Bgf5 Ke8 Bg6+ Rf7 Nc6 Bc8 Bf2 Rb7 Nd2 Qg3+ Kh1 Re7 Rg1 Bd7 Nf1 Kf8 Be3 Rf3 Bf2 Qg4 Kh2 Rf4 Rh1 Qf3 Bg1 Qe3 Qe5 Ref7 Qd6+ Ke8 Ne7 Qg3+
k3n1Q1/2p2r2/p4P2/1bN1BPNQ/np2nKNR/bQ3R2/qP1q1Q2/4R2B w - - 0 1 legal: proof: e4 d5 a4 f5 exf5 b5 c4 h5 cxd5 a6 g4 e6 gxh5 Ba3 Bd3 b4 Bf1 Ra7 Qe2 Rb7 Qd1 Rb5 axb5 Ke7 Nh3 Kf8 Ng1 Ke8 Ke2 Kd7 Kf3 g5 h4 g4+ Kf4 g3 d4 g2 b6 Qf8 h6 Qf6 h5 Qf7 b7 Nf6 h7 Rg8 h8N Ng4 d6 Kc6 h6 Qf8 f6 Rg7 h7 Qe7 d5+ Kb6 d7 Ka7 d8R Qf8 d6 Rg6 d7 Rg7 Nf3 g1N Nc3 Qe8 Ne4 Ne5 Nc5 Qf8 Ng5 Rf7 Ng6 Qd6 h8Q Nc4+ Ne5 Nf3 Rh4 Qd5 Ng4 Nfd2 Bg2 Nd6 Bh1 Ne8 Qh5 Qa2 Qb3 Ne4 f3 Re7 Be3 Rf7 Re1 e5+ Kf5 Nf2 f4 e4 Bd4 e3 Bc3 e2 Be5 Nd3 Ke4 Nf2+ Kf3 Ne4 f5 N4d6 Kf4 Ne4 Rf1 e1Q Rf3 N8d6 Rh8 Ne8 d8Q Nd7 Rh7 Nb6 Qd4 Bd7 Qf2 Na4 Rh6 Kb6 b8Q+ Kc6 Qc8 Kb6 Rh7 Ka7 Rh8 Bb5 Qd8 Ng7 Qg8 Ne8 Rh6 Ka8 Rh7 Rf8 Rd7 Qe2 Rd1 Rf7 Re1 Qd2+
1R4r1/2b5/2nq2q1/1pK1P3/NQ4pq/P1p1B1Nk/BPQNN1b1/R1n2RQ1 w - - 0 1 illegal: No proof kernel
QR2R2n/pr1p1B2/2NqRB1N/3r1NPK/Pr3k2/1BQ2P1p/2Rq4/2bn4 w - - 0 1 legal: proof: g4 c5 d4 g5 b4 f5 bxc5 e5 dxe5 b6 h3 Bb7 gxf5 g4 Bf4 g3 Bd2 Bf3 Bc1 Bg4 hxg4 Qf6 Qd2 Qe7 Qd1 Qd8 a4 Ke7 c4 h5 e4 h4 Ke2 h3 Kf3 b5 e6 Kf6 g5+ Ke5 Kg4 b4 f6 b3 e7 b2 e8B g2 f7 Qc8 f3 Nc6 Nd2 b1Q Qc2 Nb4 c6 Qb3 c7 Qd3 c5 Qd5 c6 Na2 Rh2 Qa5 Ne2 g1R+ Ng3 Rh6 Bc4 Qca6 c8R Qc7 Nb3 Ba3 f8Q Qd6 c7 Qb5 Rb8 Rh1 c8N Qa5 Bef7 Rf1 Bb2+ Nc3 Ne7 Rf2 Nef5 Ne7 Re1 Qab4 Nbd4 Rg6 Kh5 Rf6 Nh6 Re6 Ngf5 Ng6 Bb3 Rd2 Nc6+ Kf4 e5 Nd1 Qc3 Rd5 Rc2 Nh8 Ree2 Re7 e6 Qd4 Ba1 Bc1 Re1 Re8 e7 Qd2 Re6 Rc8 e8R Rc7 Qa5 Rb7 Bf6 Rb6 Qc3 Rb4 Rb7 Rc8 Rb8 Rb7 Qe7 Rcc7 Qd8 Rb4 Qc8 Rcb7 Qd8 R7b6 Qc8 R6b5 Qb7 Rb6 Qa8 Rb7
q1B2RNb/1p1QRbp1/2R1Q2p/k4r1P/3K2n1/n2NR1P1/4P1bQ/B3N1q1 w - - 1 2 illegal: Other
n2K3k/1q1pPBpN/1R4rQ/3RB1qn/4Bb2/1P1P3Q/1nN2RpN/4rN2 w - - 0 1 illegal: Other
Qq1B1N1Q/P7/ppNb1r1n/1k3B2/5Bn1/n1r1R3/PPQp1Q1R/qN2K3 w - - 0 2 illegal: No possible last move, all moves rejected
1b4B1/1PPQ1RpN/r3K1PR/1pQ2r2/8/NpRnQ1B1/1nR1N1b1/k2b1r2 w - - 0 1 illegal: Other
1NN2BN1/1b1Q2Pp/1rpnQK2/2R3PP/4R1B1/3nbQ2/1p6/1NBbkr1r w - - 0 1 legal: proof: e4 d5 f4 a5 c4 g5 fxg5 a4 cxd5 a3 bxa3 Na6 a4 Nb8 a5 Bh6 Ke2 Bg7 Ke1 Bf8 d4 c6 d6 Bh6 e5 Kf8 d5 Kg7 e6 Qd7 exd7 Kg6 Nc3 Bg7 Nb1 Bf8 Kf2 Kf5 Ke3 b5 Kd4 e6 d8Q f6 h4 b4 a4 b3 g4+ Kg6 h5+ Kf7 d7 f5 Ke5 b2 g6+ Kg7 d6 f4 a6 Kh6 a5 Bb7 a7 Be7 g7 Kg5 a6 Nh6 Qf3 Rf8 Ra5 Nf5 Rc5 Bc8 Bh3 Kh4 g5 Rf7 Ne2 Bb7 Qe8 Bd8 Nd4 Bb6 d8B Rf6 d7 Nd6 Be7 Rf7 Qe4 Kg3 d8Q Kf2 Bf8 f3 Bg4 Rf4 Nf5 Nd7+ Kd4 Rb8 a8N Ne5 a7 Nd3 Rh4 Kf1 Nh6 f2 Ng8 Rf3 Qf5 Ke1 Qdd7 f1B Nc7 Be2 a8N Rf1 Qf3 Bd1 Na6 Ba7 Nb6 e5+ Kc3 e4 Kd4 e3 Nc8 e2 Qee6 Nb4 Ke5 Nd3+ Kf6 Rh1 Ra5 Be3 Rf5 Ba8 Rc5 Rb6 Nb8 Bb7 Qfe4 Kf2 Q4d5 e1R Qde4 Reg1 Qf3+ Ke1 Bf5 Rh3 Re4 Rf1 Bg4 Rhh1
2N4B/2QQb1p1/1Pp2Rr1/1BB3P1/bRKnkP2/nR3n2/2p2r2/1N1Q1Qr1 w - - 0 1 illegal: Other
5b1r/R2nn3/NPp1PQN1/1R2KBpB/Q1p1R2B/8/2PQb1bk/rn3B2 w - - 0 1 illegal: Other
2B3bB/p1Q1P2R/R3p3/P4Nkn/n2N1r2/1Q2QPb1/KNBr1B1p/1b4n1 w - - 0 1 illegal: No possible last move
3N1B1Q/2n5/BrR1P1Bq/1Q2bR2/p6r/1Nn1nnKp/RP1p3P/3B1N1k w - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 axb5 e5 fxe5 f4 d4 Bb7 dxc5 Bf3 Bd2 Be4 Bc1 Bf5 gxf5 Qg5 Qd3 Qe7 Qd1 Qd8 Kf2 Ke7 e4 g5 c4 h5 c6 d5 c7 a5 c8B d4 f6+ Kf7 c5 Kg6 b6 g4 c6 Kg5 f7 Kh4 c7 a4 b7 f3 Qb3 d3 Ne2 Ra7 Nd2 Ne7 Ng3 Qd6 Ra2 Rh7 Be2 Kh3 Qb5 h4 Rf1 Nd5 Nb3 Rh8 Bh6 d2 Bd1 Na6 b8Q Bg7 f8N Rb7 Ne6 Rb6 Bb7 Qf8 c8R Nc3 Rc6 Nc7 Ba6 Bf6 Qe8 Bg7 Nd8 Qd6 Ke3 Kg2 Kf4 f2 Qg8 Bf6 Bf8 h3 Qg7 Rh4 Qh8 Qd3 e6 Qd4 e7 Qe3+ Kf5 Qh6 e8B Bg7 e5 Bf6 Ne4 g3 e6 Bg7 Bg6 Be5 Re1 f1N Re2+ Kh1 Rf2 Rh5+ Kg4 g2 Rf5 Ne3+ Kf3 Rh4 Ng3+ Kg1 Nf1 Kh1 Rf4 g1N+ Kg3 Bd4 Rf7 Nf3 Rf5 Be5+
4Q1n1/5r2/1Pr4p/k1pQ1PqQ/Bn3N1P/Nnb2N2/B1R1p3/Q1KRB2n w - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 g5 fxg5 f4 c4 Be6 cxd5 Bf5 exf5 Bg7 Ke2 Bh6 Ke1 Bf8 h4 Kd7 d4 a5 Kd2 c5 b4 Kc7 g4 Kb6 g6 e5 g5 a4 d6 e4 d7 f3 g7 f2 d5 h6 g6 a3 d6 a2 Qh5 Rh7 Rh2 Rh8 Nf3 Ra5 Na3 Qe8 d8N Qe7 d7 Qe5 Ne6 Qc7 d8Q Nf6 g8B Bd6 g7 Ra8 Nf4 Ra7 Qde8 e3+ Kd1 Qd7 Bd2 Na6 Kc1 Qe7 Be1 Be5 Bd3 f1N Bc2 Rc7 Ba4 Bc3 Rc2 e2 Be6 Rh7 g8Q Rf7 Rb1 a1N Ba2 Rh7 Qd5 Rc6 Qh8 Ng8 Qhe5 Kb7 b6 Ng3 b5 Nb4 Qed4 Rf7 Qg1 Ka8 b7+ Ka7 b6+ Ka6 b8Q Ka5 Qe8 Qg5 Rb3 Bf6 Rd3 Nh1 Rd1 Nb3+ Kb1 Nd2+ Kc1 Be5 Qgd4 Bg7 Qb2 Bc3 Qa1 Nb3+
Q1B1b3/r1NQ1N1R/6RB/B2b1p1p/1n1BQ1Pb/6rP/1Pbp1K2/1k4Nq w - - 0 1 illegal: Other
2b1K1B1/1RpNQ3/4p3/2b1bP2/B1nP2r1/B1Rq1Q2/Q1QpP1b1/2rNN2k w - - 0 1 illegal: No proof kernel
b2bQ3/pRPB2P1/2N1p3/3BN1k1/RBR2r1N/1rQ3pq/r2KP2B/1nr5 w - - 0 1 illegal: No possible last move, all moves rejected
2n1Q3/2rPRBK1/3Rpp1B/1nQ2NNP/2bp4/2BBb1N1/1Q1Pbr1b/6k1 w - - 0 1 illegal: No proof kernel
Q3Q3/2Rp2bR/r1Brb3/p1N3Pn/3p3K/P2Q1NBb/k2BP3/3bn1RB w - - 0 1 illegal: Other
1Rb1b1R1/1p1Q4/3p1N1n/5nP1/1r2BRNN/2KPp2k/bb1P3B/rN2Q1Q1 w - - 0 1 illegal: No proof kernel
2n3Q1/pQ2pP1B/bRbRRN2/2P3N1/4K2B/1bN1Pp1B/r1r1R3/n1k3b1 w - - 0 1 illegal: No proof kernel
N1R2BB1/k1B1p2q/3qB2p/KQ2n1Nq/3pPrR1/Q1P4P/1Q2N1nn/4b3 w - - 0 1 legal: proof: d4 a5 a4 c5 dxc5 g5 f4 b5 axb5 g4 Nc3 Ra6 Nb1 Ra7 Nc3 f5 Bd2 Ra8 Ne4 Bb7 Nc3 Bf3 Bc1 Ra6 Nb1 Rg6 Kd2 Rg5 fxg5 f4 Kc3 Bb7 Kd2 f3 Nh3 f2 Ng1 Bf3 gxf3 Qb6 Nh3 Qc7 Ng1 Qd8 Kc3 d5 e4 Kd7 b4 Kc8 b6 Kb7 c6+ Ka8 g6 h6 g7 a4 b7+ Ka7 b5 a3 Kb4 d4 f4 g3 c3 g2 c7 a2 h3 Qd5 f5 Qb3+ Ka5 Qc4 f6 Rh7 f7 Nd7 c8N+ Kb8 Nb6 Ka7 Na8 Qe2 Qb3 Qe3 Ne2 g1Q Qa3 Ngf6 g8B Qg7 Rg1 Ng4 Nd2 Nh2 Nf3 Qeg5 Rg4 Ne5 Bf4 Qh5 Ng5 Qh8 Rb1 Bg7 f8B a1Q Rb4 Qc1 Rc4 Bf6 Rc8 Rf7 Bg3 Qh7 Bf4 Nd3 Bc7 Ne5 Ne6 Ng6 Ng1 Nh4 Bc4 f1N Ne2 Qf4 Ba2 Be5 Ng5 Ng6 Be6 Rf5 Ka4 Ne3 b6+ Ka6 b8Q Ng2 b7 Bf6 Nf7 Bh4 Ng5 Rf6 Bd8 Bf2 Qe5 Be1 b8Q Rf5 Qbb2 Ka7 Qeb5 Qd6 Ka5 Rf4 Bc7 Ne5
1Q2BR1n/K1b1Qp1b/1Rp4k/1NNP1P2/3p3N/B1Pbq1R1/3b1r1R/2q4Q w - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 b4 d5 b3 d6 c6 axb3 Nh6 b4 Ng8 b5 Ba6 Ra2 Bb7 Ra1 Bc8 e4 a5 Qg4 Ra7 Qd1 Rc7 dxc7 Bh6 Rh5 Bg7 Rh1 Bf8 Rh4 d5 Qd3 d4 Qd1 Nd7 Rh5 Nb6 Rh1 Nd5 exd5 Qd7 Qd2 Qd6 Qd1 Qd8 Kd2 h5 Kd3 e5 Kc4 h4 g4 a4 f4 h3 b4 e4 b6 h2 b5 e3 b7 a3 b8Q e2 g6 e1Q c3 a2 g7 Rh6 g5 Bc5 g6 Qde7 b6 Rh5 b7 Qd2 Na3 Qe5 Nb5 Bd6 Rb1 a1B Nf3 Qf6 Bh3 Re5 Bd7+ Ke7 Ba3 Qc2 Nh4 Qe6 Be8 Kf6 Qf1 Ne7 g8R Bd7 c8Q Bb2 g7 Bc1 Rf8 Ng6 g8R Bd2 Qcc7 Nh8 Rg3 Rf5 Qe1 Be5 Kc5 Qc1 Kb6 Bc8 Qd7 Bc7+ Ka7 Qe3 Qf1 Ng6 Qe7+ Kg7 Qf3 Kh6 Qfe4 Nh8 Rb2 Qc2 Rhb1 Rf6 Qh1 Bf5 Ra2 Bh7 f5 Qc1 Qbd8 Rd6 b8N Rg6 Na6 Rg4 Qc8 Rf4 Nc5 Rf3 Qb8 Rf2 Qf1 h1B Rb4 Be4 Qh1 Rf4 Rb3 Bd3 Rab2 Be1 Rh2 Rf2 Nd6 Rf4 Rb6 Bd2 Nb5 Rf2
1R4R1/K3np1B/1PP3rk/nb1b1Q1r/N1ppQ3/5R2/2PNqp2/1B3BBQ w - - 0 1 illegal: Other
1kqN1QB1/1N2R3/nNr4R/1B2N1P1/1bp1n1Rp/2b4P/1pp2B1P/3b1KQ1 w - - 0 1 illegal: Other
3Rb3/p4Q2/2r1N3/QPq1BR1n/1r3rp1/R1pp2BQ/3PKP1b/QN1B2k1 w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 Nf6 b4 Bb7 b6 Na6 c5 Bc8 c6 Nc5 b5 Nb7 cxb7 Ng8 b8B Kf7 h4 Kf6 h6 Ke5 h5 Ke4 f6 d5 b7 g5 h7 c5 f7 e5 h6 g4 Na3 c4 Qa4 Qb6 Nf3 Nf6 Be2 Qc5 Qa5 Nh5 Nb1 Bd7 Nd4 Bd6 f8Q Be8 Qf7 Rf8 Bd1 Kd3 h8Q e4 h7 e3 Ra2 Bh2 Bg3 Rc8 b8R Rc6 Ne6 Ke4 Qa1 c3 h8Q d4 Rd8 Kd3 Kf1 Ke4 Ba3 e2+ Kg2 e1R Qhh7+ Qf5 Bad6 Rf1 Qh8 Qc5 Ra3 Re1 Bde5 Rf1 Qfg8 Rf4 Qf7 Re1 Bb3 Rc1 Bd1 Rc2 Kf1 Rb2 Ke2 Rb4 Ke1 Bg1 Rh3 Bh2 Kf1 Ng7 Rh6 Nh5 Rf6 Kd3 Rf5 Ke4 Bc2+ Kf3 Ke1 Kg2 Ke2 Kg1 Bd1 Ng7 Qh4 Nh5 Qh3 d3+
3B1n2/rpqQ1pBN/1KR4r/1P2N2R/2p1B2Q/2P2Pr1/N2p2nR/b2B2k1 w - - 1 3 legal: proof: d4 a5 b4 e5 dxe5 h5 bxa5 d6 g4 Ne7 gxh5 Bd7 a4 Bb5 axb5 Ng8 Kd2 Kd7 Kc3 Ke6 Kd4 Kf5 h4 Kg4 a6 g5 e6 c6 h6 d5 h5 Nd7 a7 Nc5 h7 Qc7 e7 Qd7 e8B Qc7 h6 Qg3 e4+ Qf3 e5 Bd6 e6 Be7 Rh2 Rc8 a8R Bd8 e7 Na6 Be2 Nb4 Kc5 d4 R8a6 d3 Nc3 Nd5 Na2 Ngf6 Bd2 Rb8 Ba5 Ne3 Bd7+ Kf4 e8N g4 Bf5 g3 Be4 g2 Bc7+ Kg4 Kb6 c5 Rh5 Be7 Bd8 c4 c3 Ba3 Rc1 Ra8 Rc2 Ra7 Qd2 Kf4 Bd1 Qg3 Nf3 g1R Ne5 Bb2 f3 Ba1 Rb2 Qh2 Rc2 Kg3 Rb2 Rf8 h8B Ng2 Bg7 Nh7 Nf6 Rh8 Rc2 Nf8 h7 Rg8 h8Q Rh1 Bh6 Rg7 Nh7 Rg6+ Qf6 Rg1 Bg7 Rh6 Be2 Kf2 Bd1+ Kf1 Rb2 Ne6 Qh4 Nf8+ Kc5 Qg3 Rc6 Qf4 Kb6 Qg3 Qdg5 Qf4 Re2 d2 Qe7 Qh2 Qd7 Qf4 Ng4 Qd6 Ne5 Qc7+ Kc5 Nf4 Rh2 Rg3 Bf5 Kg1 Be4 Qd6+ Kb6 Ng2 Qdh3 Qb8 Qd7 Qc7+
6B1/2p2P1r/1QRN1Pb1/2B4R/K1BrpNp1/p5bn/2qkP2Q/2b1NQ1B w - - 0 1 illegal: Other
QrRn4/1P2NrN1/B1p1pk1N/4pP2/B1P4n/qRbK2B1/1Q4pn/2R1R3 w - - 0 1 illegal: Other
1QR5/BRn2PR1/1p5N/1b2K2Q/RP3P1B/b1n4q/2r1ppNp/N4kbB w - - 0 1 illegal: No proof kernel
BN1Q2n1/1pb2P1Q/3Nn1KN/7n/pP5r/k2PB3/q3QBpp/1r2RB1R w - - 0 1 illegal: No proof kernel
3QK3/p1NR4/RBR1N2k/brq5/P1n3bp/2p2b1B/p4PP1/1N1BBQn1 w - - 0 1 illegal: Other
B1r1k2B/3p2KR/pP1Q4/qP1Q2np/1bN1N3/P1Rn3N/b1p5/1BBn1R2 w - - 0 1 legal: proof: g4 f5 gxf5 g5 c4 b5 cxb5 e5 d4 a6 dxe5 g4 h4 Ra7 Kd2 Rb7 Ke1 Rb6 Qd3 Rg6 Qd1 Rg5 hxg5 Qe7 Nc3 Qf6 Nb1 Qd8 Kd2 c5 Kc3 h6 b4 g3 e4 g2 f4 c4 Kd4 c3 f6 c2 a3 Bg7 f7+ Kf8 g6 Qe8 f5 Ne7 b6 Bb7 b5 Nd5 Nh3 g1N Nd2 Ke7 f8B+ Kd8 f6 Ne7 e6 Nd5 Ke5 Ba8 e7+ Kc8 Nc4 Rh7 Bg2 Nc3 Qd5 Bh8 g7 Bc6 g8B Nce2 Bg7 Qf8 e8N Kd8 f7 Bb7 Kf6 Nc3 e5 Qc5 f8Q Nd1 e6 Nf3 Qfd6 Ng5 Rb1 Nc6 e7+ Kc8 Rb3 h5 Rf1 Nb4 Rc3 Nd3 Kg6 Ba8 Nf6 Qb4 Ne4 Qa5 Be5 Bf6 e8R+ Bd8 Bf7 Rh8 Kg7 Bc6 Re6 Be7 Rh6 Kd8 Rh7 Rf8 Kh6 Bb7 Bh8 Ba8 Be6 Ke8 Kg7 Bb7 Qh2 Bb4 Qhd6 Bc6 Q5e5 Nf4 Ne3 Bc5 Ng3 Kd8 Ba2 Nd3 Bb1 Bd5 Qd4 Bg8 Ba8 Bb4 Ne4 Ba2 Q4d5 Re8 Nc4 Rf8 Qg6 Ke7 Qgc6 Rc8 Qcd6+ Ke8
3B1n1R/q1r3pp/5QBP/p1RB2qQ/nN1K1bp1/kN4PP/4N3/1RR4r w - - 1 2 illegal: Other
1Q2Q3/2RN2kB/n1BB4/7Q/2P5/pbqpPNbp/P2N1pr1/2KNq1nR w - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 c5 fxg5 c4 h4 c3 bxc3 Nh6 c4 Ng8 c5 Qf6 Bd2 Qb6 Bc1 Qd8 g6 a5 g7 b5 g4 Bb7 h5 Ra6 g5 Rg6 hxg6 Bc8 Kd2 d5 e6 f5 e7 h5 c6 f4 e3 b4 c7 f3 Nc3 d4 Bg2 f2 Nf3 d3 Ba3 h4 Kc1 b3 Bd6 Nh6 g8N a4 g7 Kf7 Nf6 h3 g8B+ Kg7 e8Q a3 g6 Be6 c8Q Ng4 Nd7 Na6 Bh7 Qf6 Qb8 Ne5 Qe2 Rg8 Nd1 Be7 c3 Bd8 Rb1 Bc4 Rb2 Bc7 Rc2 Kh6 g7 b2+ Kd2 b1Q Rc1 Rh8 g8N+ Kg7 Rc2 Bb3 Rc1 Qf4 Ngf6 Qd4 Ne4 Rg8 Rc2 Bd8 Rc1 Bh4 Rc2 Bg3 Rc1 Bd5 Rc2 Qbb4 Kc1 Bb3 Ned2 Qa5 Ng1 Qdb4 Q2h5 Qc7 Bc6 Nf3 Ne2 Qca5 Nd4 Ng1 N4f3 Qd4 c4 Qde5 Rb2 Qd4 Ne4 Qe1 Ned2 Ba4 Rb4 Bb3 Rb7 Qc3+ Kb1 Kh8 Qg4 Bf4 Qgh5 Be5 Rc7 Bh2 Bf8 Rg2 Bb4+ Kg7 Bd6 Qb4 Kc1 Bg3 Qbc8 Qa5 Qb8 Qc3+
RnBr3b/p1NpP1B1/2Nb2r1/PBq3q1/1R1PN3/2Q3QK/2p1p2R/2Bk4 w - - 1 2 illegal: No proof kernel
5BN1/n3pR1q/pN2R3/KNQ4P/P1Npp2n/P3b1q1/2R1QB2/kb4rB w - - 0 1 illegal: Other
QNk2b1N/Rp6/2Pp2r1/1Q4R1/1P3RpK/qQ1n1B2/p2rNP1B/1qn3Q1 w - - 0 1 illegal: No proof kernel
R2Q2R1/1qBp1r1N/3Pnn1K/2qB1bp1/q2k2p1/QpR2QP1/3PQ3/1N5B w - - 0 1 illegal: Other
2Rr4/pk1bQ1Qq/1N1K1n1B/RQ2p2p/n3q3/2BN1NPP/3nPQ1p/7B w - - 0 1 illegal: Other
2q3k1/p2Bn3/r3ppKp/Q2NNQ2/Qr3P2/1R5R/PPNBqNbR/7q w - - 0 1 legal: proof: e4 d5 exd5 b5 g4 f6 c4 Nc6 cxb5 Qd7 g5 Nb8 g6 Qd8 h4 Nc6 Rh3 Ne5 Re3 Nf7 gxf7+ Kd7 Rd3 g5 Rh3 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qe8 Rh4 Qf8 Rh1 Qd8 Ke2 c5 Ke3 h6 Kf4 g3 Kf5 g2 f8N+ Ke8+ Nd7 Kf7 d4 c4 f4 c3 g6+ Kg7 b6 c2 b7 Qb6 b8R Qa6 d6 Qa3 d5 Bb7 Rh2 Bc6 Bb5 Bb7 Nh3 g1Q Ne5 Qf1 d7 Qg3 d8Q Rh7 d6 Qgg2 d7 Qgh1 Qc8 Qhf3 d8Q Q3h1 Na3 Qd5 Qa5 Qe2 Nf2 Qh1 Bd2 c1Q Bd7 Bg2 Rb3 Rb8 Nc2 Rb6 Rhh3 Kh8 Rb1 Rf7 g7+ Kh7 Qcc5 Ra6 Qcb5 Rf8 Qba4 Rb8 Rh2 Qc4 Qh5 Rb4 Qg5 Qc1f1 Re1 Qc6 Ree3 Qc8 Reh3 e6+ Kg4 Bb7 Kh5 Ne7 g8N Nc6 Ne7 Qe2+ Qg4 Kh8 Kg6 Ba8 Nd5 Kg8 Qf5 Nd8 Nc3 Bg2 Nd5 Nc6 Rbc3 Qb5 Rcf3 Qe2 Rb3 Ne7+
2RKQ1RB/1k3rN1/pnR5/PP1Qp2n/2p3Np/2P2B1q/Bn3Qn1/r3B3 w - - 0 1 illegal: No proof kernel
Q1b5/2BP2r1/Rp1bp1p1/3N1pP1/N1K4P/1nR2rq1/1QpkN1B1/4R1QQ w - - 0 1 illegal: No proof kernel
3Rr1B1/pNp2BN1/p1Pq2R1/1p5N/QP1PK1n1/b2r3R/2p1Q1R1/Bbk5 w - - 0 2 illegal: Other
NKN3R1/2pB3p/1PN2nQ1/2P2r2/RQ5P/p1rp2nB/3Q3p/B2Bb1qk w - - 0 2 illegal: Other
7R/2p2n2/BBP1Q1pN/2R1N3/1P2b1qN/1KQ2rP1/1p1pRBpk/2b1Bn2 w - - 0 2 illegal: Other
8/2npp2p/2n3b1/2RQ3N/2PQNprk/3PNR2/BB1pP2K/1r1QRbR1 w - - 0 2 illegal: Other
N2Q1NK1/3R3p/pr1R1Nq1/3n1k1P/1pp5/3q1P2/PRrBp2Q/1n1B1N1B w - - 0 1 legal: proof: e4 d5 exd5 f5 g4 e6 gxf5 a6 b4 Bd6 b5 Bf8 c3 Bc5 c4 Ba7 b6 Bd7 bxa7 b5 Bh3 b4 Bf1 Bb5 cxb5 Qg5 Qe2 Qe7 Qd1 Qd8 Ke2 Kd7 Kf3 g5 Ke4 c5 Ke5 g4 d4 c4 h4 g3 d6 g2 b6 Qe8 b7 Ne7 Kf6 e5 Kg7 e4 f6 Ke6 f7 e3 f8N+ Kf5 d5 Qc8 d7 Ke5 d8Q Nd7 b8N Qc7 h5 Nc8 d6 Qc5 Nd2 Kf5 Qc2+ Kg4 Rh2 Qd5 Ne4 Qd4+ Nf6+ Kf4 Ne2+ Kg5 Bd2 g1Q Ng3 Qc5 Rd1 Qd5 Be2 Ne7 Nf1 Ne5 Nbd7 Nf3 Nb6 Rb8 a8B Qf5 d7 Qd3 Be4 Qg4 Na8 Rb6 Kf7 Rg8 Bb7 Ng1 Bh1 Nd5 f3 Kf5 Rg2 Qge4 Rh2 Rg2 Qb2 Rf2 Kg8 Kg5 Qe5+ Qf5 Qd6 Qfe4 Rg2+ Kf5 Qh2 Qe8 Rg7 Qg6 Rb1 Rg2 Bd1 Ne2 Rb2 Rf2 Qe7 Rg2 d8R Nec3 Rd6 Nb1 Qd8 Rf2 Bc1 Rc2 Bd2 Qe8 Rb7 e2 Rbd7 Qg6+
n1r5/bn1bQp2/5B1r/1K3Pbr/pR3R1N/P1qPB3/1BQR1nB1/N3k1N1 w - - 0 1 legal: proof: e4 d5 exd5 c5 g4 h5 gxh5 Qd6 b4 Qc7 bxc5 Qd8 Ke2 Kd7 Kd3 b5 f4 e5 c4 g5 h4 a5 c6+ Kd6 c5+ Ke7 a3 Kf6 c7 Kf5 c6 a4 h6 b4 Kc4 Ke4 h5 g4 h7 g3 d6 g2 h6 b3 f5 b2 d7 Nf6 Kb5 Nd5 Rh2 Qf6 d8B Bd7 c8R Na6 Rb8 Be7 Qe1+ Kd4 Ra2 e4 Rh4 Nb6 Rf4 Nc5 d3 Nb7 Nd2 Kc3 Qh4 b1N Nb3 e3 Na1 e2 Be3 e1R Rd2 Ra6 Qg5 Na8 Qh4 Rg8 h8B Qg7 h7 Bg5 Be7 Rc8 Bd8 Qd4 Bdf6 Rd1 Bhg7 Rc1 h8N Rc2 Rdf2 Nd2 Ng6 Ne4 Rd2 Rh8 Qe1 Nf2 Nh4 Rh5 Qe2 Kb2 Bh8 Kc1 Bhg7 Qc3 Bh8 Be6 c7 Rc6 c8Q Bd7 Nh3 g1B Bg2 Qd4 Qd8 R2c4 Qe7 Qc3 Qf3 Rc8+ Qc6 Re4 Bhg7 Re6 Bh8 Bh2 Ng1 Bg3 Ra2+ Kd1 Rd2+ Ke1 Bhg7 Qc1 Bb2 Reh6 Bgf6 Qc3 Rg4 Bc7 Rf4 Be6 Qc4 Bb6 Qb3 Ba7 Qc2 Rc7 Rd8 Rc6 Rdd4 Rc8 Rb4 Bd7+
Q1nb1NnQ/3nR1N1/1kp1p3/4B2b/PB1RPrb1/4QRr1/1KP3B1/2Qr2q1 w - - 0 1 illegal: No proof kernel
1QbR1Q1q/1N6/2K3R1/1r2nB2/qp1PrR1B/1NB1bpB1/1Pq2P2/Qr3k1n w - - 0 1 illegal: No proof kernel
1k2nB2/R2rR2r/1N1b4/1qQNpQ1q/3rbbp1/1B2PR1P/3n2PK/1B2R2Q w - - 0 1 illegal: No proof kernel
q1n5/3rB2K/1n1pbpq1/1PQ2P2/3b1NR1/1RQP1N2/2NQ2N1/1n1RrBrk w - - 0 1 illegal: No proof kernel
2RqNk1N/1n5b/1Nr1pb1P/1B3pQr/1RqB1b2/B1QNPPn1/5R2/1n3K2 w - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 b4 a5 h4 g5 d4 c5 e3 f5 b6 c4 f3 a4 d6 g4 b5 e6 h6 a3 h7 g3 b7 c3 d5 a2 d7+ Ke7 d6+ Kf7 b6 c2 h5 g2 h6 Qg5 d8B Qf6 d7 Ba3 Nh3 g1N Qd2 Bd6 Na3 Ra4 Nf2 Na6 b8N Ne2 b7 Nc3 Rh2 Rh4 Bb6 Bf4 d8Q Nb1 Bd4 Bd7 Nd3 Be8 Nb5 Rh5 Rf2 Nc5 Nc7 Kf8 Ba3 c1Q+ Ke2 Qc4 Qc3 Qh4 Qg5 Bg6 Ne8 Nf6 Ke1 Rg8 h8N Ne4 Be2 Rg7 Kf1 Rc7 Nd7+ Kg8 b8R Nb7 Qg3 Rc6 Nb6 Qd8 Qh4 Bh7 Rc8 Qe7 Qg5+ Kf8 Bd1 Qd6 Ba4 Qe7 Bb5 Ng3+ Kg2 Nd2 Rd1 a1B Rb1 Qd6 Rb2 Nb1 Rb4 Qd8 Qc2 Rh3 Bc3 Nh1 Kf1 Rh5 Bf6 Bd4 Qc3 Ng3+ Kg1 Bc5 Bd4 Be7 Kg2 Bf6 Kg1 Ne4 Kf1 Ng3+
7R/nk1p4/N7/Qqb2QRp/2bR3P/NB1N1bK1/Pr1P1RQ1/1nr1n1Bq w - - 0 1 illegal: No proof kernel
NNR1QKB1/k2b3p/rqn4b/p1rR2NB/PB2Q2q/nb1B4/Pq1Q3P/8 w - - 0 1 illegal: No possible last move
8/Q1pPpN2/RrN2b1q/B1P3b1/1NN1bn1B/3qrnK1/2qQP3/2QR1Bk1 w - - 0 1 illegal: No proof kernel
BN5r/k3n1PR/r7/Qb2ppBQ/r1N1N3/Q3P1B1/1bn2P1r/r1N1R1Kq w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Kd7 b4 a5 g4 h5 g6 c5 d6 f5 b6 Kc6 b7 Kb6 g5 h4 d7 a4 b5 e6 g7 a3 g6 h3 d5 a2 d6 c4 Bg2 c3 Kf1 h2 Nd2 c2 Nc4+ Ka7 b6+ Ka6 Bg5 c1R e3 Ne7 g8N Nbc6 b8B Ra7 g7 Rb7 Nf6 Ra7 b7 Nd4 Ne2 Nc2 Ne4 Qc7 d8Q Bd7 Rb1 Bb5 d7 Qc6 Bg3 a1R Qa8 e5 d8Q Ra4 Ra1 Rb1 Nc1 Qd5 Qh5 Qc6 Rg1 h1R Qd2 Rh3 Rh1 Rh2 Kg1 Qd5 Qc3 Qc6 Qa3 Qd5 Ra2 Ra1 Qd8 Ra8 b8N+ Ka7 Rb2 Ra6 Qda5 Qb7 Ned6 Qf3 Ne4 Nc8 Ra2 Bb4 Rb2 Ne7 Rb1 Be1 Na2 Bd2 Re1 Bc3 Nc1 Bb2 Nd7 Rad8 Nb8 Rd4 Ned6 Qe2 Ba8 Qd1 Ne4 Qf3 Ncd6 Rb4 Nc4 Ra4 Qe8 R2h6 Rh2 Rc6 Rh7 Rh6 Qg6 Rh2 Qh5 Qh1#
b2RK3/p2R1rB1/1Qr3r1/Pr3pP1/QnkbBrBR/3qn2Q/R4PN1/4N3 w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 h4 Nb8 hxg5 Bg7 Be3 Bh6 Bc1 Bf8 Kd2 Ke7 Ke3 Ke6 Ke4 h5 c4 b5 g4 h4 a4 d6 g6 h3 a5 f6 c6 h2 g7 b4 c7 b3 c5 b2 g5 Be7 c6 Rh5 Nf3 Qe8 Nc3 b1R Qa4 Nd7 Ne1 Rbb8 Nd5 Rh3 Bb2 Rc3 Ne3 Nh6 g8R Qf7 N3g2 Rb5 Ra2 Nf5 Rg7 Bb7 c8B Qg6 e3 Bf8 Bd3 d5+ Kf4 d4 e4 Rc4 c7 Rc6 Bc2 d3 Qb3+ Rd5 Qb6 d2 Rh7 d1R Kg4 Qg7 Kh5 Rb5 Ba1 Qh8 Kg6 Bc5 Rh4 Ne3 Rf1 Ke7 e6 Kd6 Kf7 h1R e7 Qh7+ Ke8 Rd4 e5+ Kd5 e6 Rf4 Be4+ Kc4 Be5 Nb8 Bd7 Bd4 c8Q Rh3 Rh1 Qg7 Rh7 Rh5 Rh4 Na6 Kd8 Qf8+ e8R Rh6 e7 Rg6 Bdf5 Rb3 Kd7 Rb8 Rd8 Ba8 Bh3 Rc5 e8Q Rb7+ Ke6 Rcc7 Qa4+ Qb4 Re7 Rc6+ Kf7 Rbc7 Qg4 f5 Ke8 Rb2 Bg7 Rb1 Re5 Rf7 Re7 Rb3 Red7 Rb2 Qad1 Qa3 Qa4+ Rb4 Qg3 Qc3 Bg4 Qd3 Qd1 Rb5 Qh3 Nb4 Qc2+ Qc3 Qa4 Qd3
RB1kB3/q1Nn4/p1n3P1/2N5/rp1R1Q1R/P4N2/nPBbK1Bn/3rQ1nb w - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 d5 hxg5 Be6 c4 Bg4 cxd5 Bc8 g4 h5 e4 b5 d4 f5 g6 c5 g7 f4 e6 f3 e5 c4 d6 h4 d7+ Ke7 g5 h3 g6 b4 d5 f2+ Ke2 c3 Bg2 f1N Bf4 c2 Nf3 h2 Qe1 Rh6 Nc3 Nd2 Na4 Qa5 d8R Nd7 Nc5 Nf1 a3 Rh8 Rd1 Bb7 Rd4 Qb6 Rb8 Rh5 Rd8 a6 Rc8 Qa7 Rd8 Rc8 Bg3 Rc7 Ra8 Rc8 d6+ Kd8 Bf4 Ne7 g8B Nc6 Bg3 Bh6 e7+ Ke8 Bb3 c1N+ Kd1 Bd2 Bc2 Na2 Ke2 Nf6 Na4 Kd7 e8N Kd8 e6 Ra5 Nc5 Ra4 d7 Rb8 Nc7 Rc8 Rg1 h1N Bh2 Nf2 Rh1 Rb8 Bf4 Rc8 Rh4 Nh2 Ne8 Ke7 Bb8 Nh3 Nc7 Rh8 Bf5 Rh5 Bd3 Rd5 Bc2 Kd6 d8Q+ Nd7 Qg8 Ke7 Qf7+ Kd8 e7+ Kc8 e8B Kd8 Rc4 Ne7 Bf1 Bg5 Ne5 Rd1 Rcd4 Bd2 Qf4 Bh1 Nf3 Nc6 Bg2 Ng1+
3r4/QB2brp1/KrBQ2P1/BQNb1kq1/1N3rnp/2R3PP/1Q3n2/nR4N1 w - - 0 1 illegal: No possible last move
1k1N1BbN/3n2q1/1pn2bpP/nP1n1QQR/2B3b1/1Q1rR1P1/rN3R1R/7K w - - 0 1 illegal: No proof kernel
RB6/pBq3Q1/PQQrN3/5R1p/Q1n2b2/N2rN2b/Pr1nr1RP/k2Kn3 w - - 0 1 illegal: No proof kernel
3n1KQ1/2p5/NNPpBbBq/2RPr2P/2qnn2n/R3B1N1/3r2Q1/2kb1QB1 w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 gxh5 Rh7 a4 Rh6 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 d4 a5 c4 a4 b4 f6 h4 a3 c5 g4 b6 g3 b5 g2 c6 a2 h6 d6 d5+ Kf7 b7 Kg6 h5+ Kf7 b6 Ra3 h7 Be6 Nd2 Bg7 Nc4 Rc3 Be3 Na6 b8B Qf8 b7 Rd3 Nb6 Rd2 Ba7 Nh6 b8N Bg4 e6+ Ke7 Rc1 a1N Rh3 Nb3 Rc5 f5+ Kf4 Kf6 e7 Bf3 e8Q Nd4 Qe4 Nf7 Qdb1 Rg8 h8Q Nd8 Qh7 Rh8 Qg8 Rh7 Qa1 Bh8 Qc2 Re7 Qad1 Re5 Rg3 Nb4 Na6 Na2 Qb2 Nc3 Qdb1 Ke7 Kg5 f4+ Kg6 Ne4 Qc3 Nf2 Qcb2 Nc2 Bd4 Rd3 e4 Rf5 Ne2 g1N e5 Rd1 e6 Re5 Kh7 Kf6 e7 Kf5 e8B Ke4 Nc8 Kd3 Ra5 Kd2 Bg6 Bf6 Bh3 Bg4 Rb3 f3 Rba3 Ne4 Ng3 f2 Q1a1 Bf3 Be6 f1Q Bac5 Bg4 Nb6 Nf3 Bg1 Nh4 Rb5 Qc4 Bce3+ Ke1 Rba5 Nd4 Qg2 Be2 Rc5 Bf3 Qh8 Qh6+ Kg8 Bg4 Qb1 Be2 Qd3 Rd2 Qg7 Kd1 Kf8 Bf3 Qdf1+ Kc2 Bef7 Bd1 Be6 Qg5 Qh8 Kc1 Qg8 Qh6+
QB3Nq1/2N2r2/2pp1r1R/N1PBB1n1/3q2Rn/K1BPR1Q1/1n3P2/1kbb3n w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 b4 Kf7 c4 Kf6 h4 Ke5 h6 Ke4 c5 a5 h5 e5 f6 g5 b6 a4 h7 c6 h6 a3 b5 a2 f7 d6 b7 g4 b6 g3 Nf3 g2 Nd4 g1N Bg2+ Kd3 Nb5 e4 Qf3+ Kc2 d3 e3 Nc7 e2 Bb2 Nf6 Rh3 Nbd7 b8B Nh5 b7 Ng3 Nd2 Ne5 Bc3 Bg4 Nc4 Ra7 Na5 Nh1 Qg3 Nc4 Bd5 Nb2 Rb1 Be7 f8N a1Q Rd1 Rg8 h8R Bg5 h7 Rg6 Rh4 Bh5 Rg4 Rf6 Rb1 Qa4 Ra1 Qc4 Ra4 Qf4 Re4 Kb1 Re3 Nh3 Kd2 e1N Be5 Qa4 Kc3 Qd4+ Kb3 Ng2 Ka3 Qe8 Rg8 Nh4 h8B Qf7 Rg6 Qg8 Rh6 Bf4 Rg7 Bd1 Rg4 Ng5 Bg7 Qe4 Bc3 Qd4 Bh8 Rf7 Be5 Ra8 Ba7 Re8 b8Q Re6 Qa8 Rg6 Bb8 Rgf6 Re1 Bd2 Re3 Bc1
bqBQq1R1/R3QbRr/1pB1nb2/3p3k/3P2bP/KPB1r2Q/2R1N3/N4n2 w - - 0 1 illegal: No proof kernel
6QB/4Br2/rRq2p1q/kPQ1N3/n2pr1b1/N2PRR2/2nr1PK1/2BBQ1b1 w - - 0 1 illegal: No proof kernel
4qbbr/Qq1PR3/1p3qnN/N6K/n1r1BBQ1/3QpR2/1P2P1q1/1Nk3NB w - - 0 1 illegal: No proof kernel
2bR4/4Qp2/q1r3N1/1p2RP1K/N1knR2Q/Qnbn4/1PQn2Pr/1B1qB1N1 w - - 0 1 illegal: No proof kernel
2Qb4/qRr3pB/bQb5/1B1kn1RQ/1q2rpb1/Nn4P1/PNQ2P2/B4K1N w - - 0 1 illegal: No proof kernel
q2n2Q1/b1pQ1Rp1/Q1BNq2N/K1BR4/2P1n1P1/1q1P1R2/k1NN2b1/q2rr3 w - - 0 1 illegal: No proof kernel
R1bNNQ1N/1p1r1npK/1nqqBB2/4b1P1/3kB3/3P1rR1/QP1R1qN1/2q5 w - - 0 1 illegal: No proof kernel
1N2q1k1/RQ2pnb1/1PB3R1/rp1bPB1N/1P4n1/3K4/1BNpRrB1/bn4Q1 w - - 0 1 illegal: No proof kernel
BQ2b2b/2p3N1/1rn1p3/q1PN4/QrB1PnRn/R1P3pk/4NK1B/1R2r2B w - - 0 1 illegal: No possible last move
2Q3Q1/1bQ2N1R/r2N3n/pK4pk/P1p2Bq1/2BR1bP1/1nP1r1Bb/B3n1R1 w - - 0 3 illegal: No proof kernel
1N3KQ1/pNRp1nn1/1p1NqN2/Pn1P4/2b2QrB/1PRB1r1k/4b3/4QbR1 w - - 1 3 illegal: No extended proof kernel
8/b1PQ1pR1/1Q1RNpr1/2p1NPB1/q1P1b2n/1Bb5/1R2nK2/2qrNNBk w - - 0 1 illegal: Other
3nB3/KqRnQ1p1/1RN3P1/2Nkb1B1/2p2q1P/2P3br/QNp1N2r/2Rb2Q1 w - - 0 1 illegal: Other
kn2n3/ppRN1P2/P3q3/RP1KbrQN/B3r1NQ/2Bbb1q1/R2p4/1Q3N2 w - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 dxc5 Rh6 g4 Rh7 gxh5 Rh8 Kd2 g5 Kd3 e5 Ke4 d6 c4 Kd7 f4 Kc6 b4 g4 h4 g3 a4 g2 f6 Bg7 f7 Qa5 f8N Rh7 h6 Qb6 h5 Nd7 f5 Qa6 f6 Rb8 f7 Ne7 a5 Rh8 h7 Bf6 h6 Nd5 Ne2 g1B Rh2 Ne3 Nd2 Ng2 Bb2 Be3 Qb1 Bh4 Nf4 Ne1 Nh5 Bd8 Bc3 Kc7 c6 Ng2 c5 Bf6 Bb5 Nh4 Nf1 Nf5 Ba4 Ng7 b5 Ne8 Kd5 e4 Rha2 Be5 Ng6 Rg8 h8Q Ra8 h7 Kb8 Nf8 Rg5 Qg8 Rf5 h8Q Qb6 a6 Qc7 Ng6 Qb6 Ke6 d5 Qf6 d4 Qh4 d3 Kd5 d2 Qg7 B5f4+ Ne5 Qc7 Qgg5 Qd6+ Kc4 Qg6 Ng4 Be5 Kd5 Qh6 Qd8 Qf4 Qdg5 Qg3 Nfh2 Bg1 Nf1 e3 Bc2 e2 Ra5 e1Q Ba4 Rf6 Ra2 Be3 Qb4 Nf8 Qb1 Bf5 c7+ Kc8 Qb4 Nd7 Qe4 Nb8 Qb1 Kd7 c8R Bd3 Rc7+ Kd8 Re7 Kc8 c6 Rf4 c7 Rf5 Re6 Kd7 c8N Kc7 Nb6 Qe2 Ngh2 Qeg4 Nd7 Kc8 Qf4 Qg6 Re7 Qf6 Ng4 Qg6 Qd4 Qe6+ Kc5 Kc7 Qg5 Nc6 Qb3 Rc8 Ndf6+ Kb8 Nf2 Qg1 Qb1 Rd8 Rc7 Rd6 Nd7+ Ka8 Nh3 Nb8 Nf2 B3f4 Qe4 Rd4 Qee1 Qg2 Ng4 Re4 Qeh4 Qf3 Qf6 Qg3 Qfg5 Qb6+ Kd5 Be3 Nh6 Qg6 Ng4 Qe6+
4N1B1/N5K1/ppb1Q3/qp4nN/PPr2r2/RRBQ3n/Q1qn3P/b2B2kN w - - 0 1 illegal: Other
1QnN2Bq/1qKp4/4rR1P/4RpBn/3P1bNQ/1n4p1/B1NkrBP1/4Rb2 w - - 0 1 illegal: No proof kernel
1nK1N1q1/b3BP2/1R1pQQ1N/2n4p/R4b1P/pbqPR2r/3k1NRr/1B5B w - - 0 1 illegal: No proof kernel
RnN1n3/1k2Nb2/4q1r1/3p1KBp/1N1QP1Rr/1pRP3P/bQq4b/5BQN w - - 0 1 illegal: No proof kernel
2bN1nR1/knr3pn/B1p1N1K1/4B3/1RPp2P1/1Q3B1q/R2qQP1Q/bB1r4 w - - 0 1 illegal: No proof kernel
2Bbq1nR/pr6/kp1RQ2B/b4b2/2n1N2r/PRNp4/2QP1PN1/Bq1R2K1 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 c5 bxc5 Nf6 g4 Ng8 gxh5 Qa5 Qe2 Qb6 Qd1 Qd8 h4 g5 c4 d5 h6 Kd7 a3 Kc7 c6 Kb6 c5+ Ka5 h7 e5 h5 e4 f6 e3 c7 d4 h6 d3 f7 g4 c6 g3 Bh3 b6 Kf1 Nf6 Nf3 g2+ Kg1 e2 Nh4 Nd5 Bb2 Rg8 h8R Qd7 h7 Ka6 Nc3 Nf6 Qc2 Bb4 f8B Rg7 Rd1 Ng8 Ba1 Qe8 Rb1 Bd7 c8N Bf5 c7 Ba5 Nd6 Nc6 c8Q+ Rb7 Nde4 Ne5 Qe6 Nc4 Rb3 Rab8 Bh6 e1Q+ Kh2 Qb1 Rd1 g1B+ Kh1 Rd7 Ng2 Bh2 Bg4 Bc7 Kg1 Bd8 Bh3 Ne7 Rf8 Ra8 h8R Ng8 Rf7 Rd4 Rd7 Rb8 Rd6 Rb7 Qf6 Bg6 Bc8 Bh7 Qe6 Bf5 Ng3 Rg4 Nge4 Rh4
2B1b1NR/1N3q1n/5P1p/p3rR1Q/n2k1p1N/P1n4P/2Rr2BQ/K1BBb1q1 w - - 0 1 illegal: No proof kernel
2n1nRN1/k1q2r2/p3P2Q/3QBp2/1qR4Q/Pn3bb1/KNpB1PQ1/r2B3N w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 h5 cxb5 Nf6 g4 Ng8 gxh5 Bd6 Nd2 Bc5 Nb1 Bf8 Kd2 c5 Kc3 g5 Kb3 f5 h4 d5 e4 Kd7 h6 Kc7 b6+ Kb7 e6 d4 h5 a6 e7 g4 e8N g3 a3 g2 e5 d3 h7 d2 h6 c4+ Ka2 c3 b4 Qd3 e6 Ne7 b5 Qe3 Be2 Qf3 Nf6 Qd3 Ng8 Bg7 Bf3+ Nd5 Ne2 g1Q Ng3 Qe2 Rh2 Qee1 Nh1 Qgf1 Qb3 d1N Nd2 Ne3 Nc4 Qg1 Nb2 Nc2 Bd2 Nd4 Bd1 Qg3 Rc1 Nf6 Qd5+ Nbc6 Rc2 Kb8 b7 Qc7 Rh3 Ka7 b8B+ Kb7 b6 Ra7 Rh4 Nb3 Rc4 Ne8 Rc1 Bd4 Rb1 c2 Qg2 Qd7 Be5 Qc7 Qd5 Kb8 b7 Ne7 Qg2 Be3 Qd5 Bf4 Qg2 Ra8 Qd5 Ka7 Qg2 Kb6 b8Q+ Bb7 Qd8 Nc8 Qdd5 Ra7 Nf6 Rf8 h8Q Rf7 h7 Bg3 Ng8 Bc6 Qf6 Rb7 h8Q Ka7 Qhh4 Qe4 Qfh6 Qd4 Qa5 Bf3 Qb5 Qdb6 Qd5 Qb4 Na4 Na5 Rb3 Rb6 Nb2 Rb5 Rd3 Nb3 Rdd4 Rb7 Rg4 Rb8 Rg6 Rb5 Rf6 Qba5 Qf8 Re7 Qd3 Nd4 Na4 Rb1 Nb2 Nb3 Qfh6 Qb4 Rf8 Rf7 Qd5 Ra1#
q1Q2KQ1/4r1p1/BP2pR2/n1NQR2B/4pq2/b2BRb2/1rbBPnP1/k3N3 w - - 0 1 illegal: Other
1k2Nn2/3p4/b3R3/2b1pQKR/2Q4p/BNr1q1Pr/N2PBnqP/1N1qR2B w - - 0 1 illegal: No proof kernel
1Br1bRBb/RNQ2Q2/K2Rp3/4PbnP/1Q1QBp2/2Nq1Pk1/b2pr3/1n6 w - - 0 1 illegal: No proof kernel
k1BKn3/1pB3b1/3N1pR1/p2R1P2/PPbr3Q/1R3BQn/rB6/QnNq2n1 w - - 1 3 legal: proof: d4 e5 dxe5 d5 c4 h5 cxd5 Bd7 g4 Be6 gxh5 Bc8 Kd2 Kd7 Ke3 c5 Ke4 Kc7 b4 a5 h4 g5 f4 f6 a4 c4 d6+ Kc6 d7 c3 Kf5 g4 Ke6 g3 e4 c2 h6 g2 f5 Na6 h7 Kb6 h5 Ka7 h6 Nb8 Be2 Nc6 Ra3 Bc5 Bf3 Nge7 Nd2 Nd5 Bb2 c1N Nc4 Qb6 Rb3 Kb8 Nd6 Ne2 Qa1 Nec3 Ne2 g1N Nc1 Nge2 Rd1 Rd8 h8R Bf2 h7 Na7 Rg8 Bg1 h8Q Qd4 Qh4 Be3 Rg6 Ndf4+ Ke7 Nab5 e6 Ng1 e5 Nfh3 Rd2 Rh8 d8B Nb1 Bc7+ Ka7 Rd1 Bh6 Rdd3 Qg4 Rd5 Bg7 Qg3 Rh7 Kd8 Rb8 e7 Ka8 e8B Be6+ Nc8 Bf7 e6 Nd6 Bd7 Ne8 e7 Qd4 Qh4 Qd1 Qg3 Rh4 Be6 Rd4 Bd7 Nd6 e8Q Be6 Qh8 Ne8 Qhh4 Bf7 Rb5 Bc4 Rd5 Rd2 Ke7 Rg2 Nd6 Rd8 Bc8 Rc2 Bd4 Ra2 Bb2 Rd7+ Ke6 Nc3 Nb5 Be2 Rd4 Rd8 Ke7 Rd5 Nd6 Bc4 Kd8 Nb1 Rd2 Rd4 Rdd3 Rf4 Rd5 Rd4
1R2N3/p3pN2/3NP1pn/2RbR2B/QB1rqbPK/1P1r2Bn/n6Q/B2k1n2 w - - 0 1 illegal: No proof kernel
1Q1R2N1/bpR2PBB/2NR4/pP1K2kb/Pr1NBqb1/5p2/3Q3b/r1n1n2N w - - 0 1 illegal: No proof kernel
1NbBRN2/4p1Rp/1nQ1QRn1/KN5P/4P1Nk/3q1p1B/1rP3Bb/bb2r3 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 f4 Nb8 fxg5 Bh6 Nh3 Bg7 Ng1 Bf8 Kd2 a5 Kc3 f5 b4 Kf7 g4 Kg6 h4 d5 e4 a4 b6 f4 h5+ Kg7 c6 f3 c7 a3 b7 a2 g6 Kf6 b5 d4+ Kb4 d3 b6 d2 g5+ Ke6 g7 Nd7 b8N Ra3 g6 Kf6 b7 Kg5 Nc3 Nb6 Nh3+ Kh4 Rg1 Qd3 Nb5 Bg4 c8B Qd7 Bg2 Qe6 Nd7 Qd5 b8N Qd3 Nf2 Nf6 g8Q Bg7 Nf8 Nfd7 Qe6 Be5 g7 Bh2 g8R Ne5 Qf1 d1B Bf4 Rb3+ Ka5 Ng6 Bc7 Rb1 Bd8 Be2 Qc1 Bh3 Qh6 Re1 Ng4 Bf1 Rb1 a1B Rb4 Be2 Rd4 Bf1 Qc6 Be2 Rd6 Bf1 Rf6 Be2 Ne3 Be6 Bd7 Ba2 Bdh3 Bb1 Ng4 Bf1 Ne6 Be2 Re8 Rf8 Rf4 Rf5 Nf8 Rc5 Rf5 Rc3 Rf6 Rb3 Qg7 Rb4 Qf7 Rb2 Qfe6 Qd1 Nc7 Ba6 Nb5 Bc8 Nh6 Bb7 Bh1 Ne5 Rg7 Ng6 B1g2 Bc8 Ng4 Qd3
RR1N2n1/B2p1R2/Bq3B1k/Nb1P2p1/1p1N1r1r/nQ2N1bP/b5PK/b3Q3 w - - 0 1 illegal: No proof kernel
3bk3/N3Pp2/1rRR1B1r/Qq4pR/1Q1r2bQ/QKrBnPP1/2p1B3/3N1n2 w - - 0 1 illegal: No proof kernel
1kN1R3/1npp2pq/P4n2/bRP1Rr2/b1B1bN1R/3PB3/4Q1BK/bQN2r2 w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 bxa5 Nh6 g4 Ng8 gxh5 Rh7 Bd3 Rh6 Bf1 Rh8 f4 e5 Kf2 b5 Kg3 b4 c4 b3 h4 e4 a4 b2 h6 e3 f6 e2 c5 e1B+ Kh2 Rh7 a6 Nc6 h5 Nd4 a5 Rh8 f5 Be7 h7 Bh4 h6 Ra7 f7+ Kf8 Na3 b1B Nb5 Ne6 Bc4 Bhg5 d3 Nf6 Ne2 Qe8 Be3 Ne4 Nd6 Nf4 Nc1 Nh3 Qe2 Bb7 Re1 Bef6 Nc8 Bc2 Rb1 Ba1 Rb5 Ra8 a7 Nhf2 a6 Ba4 Rh1 Nd6 Re1 Rg8 h8R Be4 h7 Rb8 a8B Ng4+ Kg1 Nf6 Kh2 Bh1 Bg2 Nb7 Nb6 Ke7 f8N Kd8 Ng6 Qe4 Nc8 Rf8 Nf4 Ra8 Rg8 Bh4 h8R Bf2 Rh4 Rb8 Rd1 Be1 Rgh8 Ba5 Re1 Qe6 R8h5 Qg8 Rh8 Qh7 Rg8 Nd5 f6 Ra8 f7 Nf6 Bf1 Be4 Bg2 Re8 f8Q Rb8 Qd6 Rf8 Qd4 Ra8 Qdb2 Rb8 Qb1 Ra8 Na7 Rb8 Nc6+ Kc8 Rh8 Ra8 Na7+ Kb8 Nc8 Re8 Rg8 Re5 Re8 Rf5 Nb6+ Ka7 Re5 Rf8 Nc8+ Kb8 Re8 Rh5 Bf2 Bg6 Qe7 Bf5 Nd5 Ne4 Re2 Bg6 Bd4 Rf2 Nf4 Nf6 Qe6 Rd5 Qg4 Rh5 R2e5 Be4 Qe2 Rf5 Be3 Rf1
1n2N2R/rrqnbR2/k2N2n1/1p2BQ2/N1BP2K1/3pQb1p/p1RPBR1P/8 w - - 0 1 illegal: No proof kernel
1Q6/1Q1p4/2p1nNB1/1BpP1b2/1PP1q2k/b2BpR1N/4N1bn/R1RKrrB1 w - - 0 1 illegal: Other
5KR1/1QpN2Q1/3pB1QR/1p1P1B2/1kbr2N1/1P1rB1Rp/1RP1nr1b/3q2n1 w - - 1 3 legal: proof: e4 b5 h4 g5 hxg5 f5 exf5 d6 a4 Qd7 a5 Qc6 Rh6 Na6 Rh1 Qb6 axb6 Nb8 Ke2 Kd7 Kd3 Kc6 Kd4 h5 f4 a5 g4 h4 b7 a4 g6 a3 b3 a2 g5 e6 g7 Rh5 f6 Be7 g6 Bd7 f5 Rh7 f7 Rh6 f8R Kb6 f6 Ka5 f7 e5+ Kd5 e4 d4 e3 Nf3 e2 Nbd2 e1Q Nh2 Rh8 Ng4 Bf6 Nc4+ Kb4 Be3 Ra3 Bd3 Bc8 Rb1 a1R Nce5 Bg5 Bf5 Nc6 b8Q Nh6 g8R Ra4 g7 Bf4 Qb7 Bh2 Qd3 Qd1 Nd7 Ne5 Ke6 Nf3 Ke7 Ng1 Rb2 Rh7 Re8 h3 f8Q Rb1 Qf7 Rc1 Kf8 Rca1 Re6 Rc1 Be4 Nf5 Rh6 Ng3 Bf5 N3e2 Qde4 Rca1 Qg2 Rc1 Qg6 Rb1 Nc5 Be6 Nd7 Bc4 d5 Qe1 Qg3 Rd1 Qe5 Rd3 Qef6 Nf3 Rg1 Qd1 Rg3 Nfg1 Rh8 Rc3 g8B Rd3 Qe5 Re7 Qeg7 Re4 Bge6 Red4 Rg8 Ra8+ Ke7 Rf8 Be4 Rf1 B4f5 Rf3 Kf8 Rf2
1K2R3/bp3bn1/1k1n2pN/rN2BnNp/R1qR3P/1PR3PB/2p4r/Q4Q1B w - - 0 3 illegal: No possible last move
6N1/N1pk1r2/K2b1p1N/1p1pnP2/3B3R/2Qn2BP/1Pb1q2r/1BRrQ1RB w - - 0 1 illegal: No proof kernel
7b/1q1NQ1p1/P2r1QRR/1p3b1R/B2Np1P1/br2Bn1p/kPB5/nNK4B w - - 0 1 illegal: Other
3Q1R1K/n1b3rQ/2p2BB1/p2NQnRb/3N2N1/1pQPbpB1/P1P4q/5k1r w - - 0 1 illegal: No proof kernel
4r2q/kPpBBp2/6rp/KBR4R/5PRn/1N1b1pQ1/1bP1Nn2/Qn1B1N2 w - - 0 1 illegal: Other
1BK1bq1Q/2pQ1B2/r1B2p2/5R1p/r1N1bN1P/1n3PQR/kNPBp1rn/8 w - - 2 3 legal: proof: e4 a5 g4 h5 b4 d5 bxa5 g6 exd5 Ra7 g5 Bh6 gxh6 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 b5 a4 b4 h4 b3 f3 b2 a6 g5 h7 g4 a7 e6 a5 f6 a6 g3 Bc4 g2 Na3 b1B Qe1 Qf8 Ne2 g1R Qg3+ Ke7 Kc5 e5 d4 e4 d6+ Kd7 d5 e3 Bd2 Ba2 Nf4 e2 Rh3 Qh6 Kb5 Kd8 d7 Ke7 d8Q+ Kf7 d6+ Be6 d7 Nc6 Qc8 Bb3 d8B Na5 Qd7+ Kf8 Be7+ Kf7 Bd5 Rg2 Nc4 Qf8 Nb2 Nh6 Kc5 Rg8 h8Q Ng4 Kb5 Nh2 Bc5+ Qe7 Ra4 Rg4 Re4 Ba2 Re5 Nb3 Bc4 Bd5 Rf5 Rag8 a8N Re8 Bd3 Be4 Nb6 Ra8 N6c4 Ra7 Ng6 Ra8 a7 Rf4 Ka6 Rg4 Qd4 Qf8 Nf4 Ke8 Bb6 Ke7 Qd5 Rd8 Kb7 Rd6 a8B Re6 Ba7 Ra6 Nd6 Kd7 Bc4 Ke7 Bb8 Kd7 Qc6+ Ke7 Nd5+ Ke6 Rf4 Ke5 Rf5+ Kd4 Qe8 Rf4 Kc8 Rg4 Bc6 Kc5 Nc3+ Kb4 Bf7 Ka3 Qd8 Bd3 Qe8 Rga4 Nd5 Be4 Nf4 Na1 Bg6 Bf7 Ndc4+ Ka2 Qd8 Be8 Bf7 Nb3 Qd5 Qg7 Qd7 Qf8
8/2ppRrRp/kNP3q1/brBpPB1b/Q1Q3N1/3P2K1/n1Q2n1N/2N1R2q w - - 0 1 illegal: Other
2B2B2/pKNrQ1R1/n7/1Bb1n1p1/3p1RP1/3QN2q/P1rPN1pN/r1R1n2k w - - 0 1 illegal: Other
RrQb3n/r1pqQ3/RN2p1rB/B2B4/1qR1Pp2/2P1pkN1/1NK2P2/N1n5 w - - 0 1 illegal: Other
3QKN1n/2p1B1pB/rk3nP1/1bp1pBN1/1R3n2/N1P1P1p1/rQ3RQN/6b1 w - - 0 1 illegal: Other
4N1k1/R1p2Rp1/pq1r3B/2R3QK/1pN5/1QP1Q1pn/1Pp1B1Pb/r4NnN w - - 0 1 illegal: Other
B1nB2k1/2Nq3R/PN6/RB1PQ1B1/1N1bp1K1/3q3r/1qn2P1b/1B5B w - - 0 1 legal: proof: c4 h5 d4 c5 g4 d5 gxh5 b5 cxd5 a5 e4 e5 b4 f5 exf5 c4 bxa5 Be6 fxe6 Ra6 Bh6 Rc6 Bc1 Rc5 dxc5 Qc8 Qd2 Qc7 Qd1 Qd8 Ke2 g5 Kf3 c3 a4 b4 h4 c2 a6 b3 c6 b2 h6 Rh7 c7 Ke7 c8B Rg7 a7 Qc7 a8B Qc6 a5 Qc7 h5 Na6 h7 Qd6 h8B Qc5 h6 Qb4 h7 Qb6 Nd2 b1Q Qe2 Qc6 Nc4 Nc5 a6 Qcb7 Bg2 Q1b4 Kg4 Qa3 Nh3 Qc3 Ra5 Qd3 Nf4 Nb3 Nb6 Na1 Rh6 Rg6 Bh1 Qd7 Bf6+ Ke8 h8N Bg7 Qe4 Kf8 Rh7 Rh6 Bd8 Ne7 Nhg6+ Kg8 Nf8 Rh3 Bd2 c1Q Qe3 Qda3 Nd3 Qcb2 Nb4 Qd3 Qf4 Nc2 Qd4 Nf5 e7 Nd6+ Ne6 Bh8 e8B e4 Qe5 Bg7 Bcb7 Bh8 Bc6 Nc8 Ba4 Bg7 Bb3 Bf6 Ba2 Bg7 Kf5 g4 B2g5 g3 Bb1 g2 Kf4 g1B Kg4 Qc7 Ba4 Bh2 Bb5 Qd6 Nc7 Qd7+ Qf5 Bd4 Qe6+ Qf7 Qe5 Qd7+
Q1RRn3/R1R1P3/1b1N2n1/1rR2P2/R1p1Knk1/3B1NB1/2qr1P2/n3N3 w - - 0 1 legal: proof: c4 a5 b4 h5 a4 b5 axb5 d5 cxd5 Nh6 g4 Ng8 gxh5 Qd7 Bh3 Qd6 Bf1 Qd8 bxa5 e5 e4 f5 exf5 e4 d6 e3 d3 Be6 Be2 Bd5 Bf1 Be4 dxe4 Rh7 Qb3 Rh6 Qd1 Rh8 Ke2 Kf7 Kd3 Kf6 h4 c5 b6 g5 e5+ Kf7 a6 g4 d7 g3 e6+ Kf6 e7 e2 a7 e1N+ Ke4 g2 b7 Rh7 h6 Qa5 d8R Nc2 h5 Na3 Qd5 Nd7 b8R Rg7 h7 Qc3 h8R Rg6 h6 Ne5 h7 Nc2 Rbc8 Qd2 Na3 Kg5 Bd3 Rb8 a8R Kg4 Nf3 g1N Ra4 Rb5 Rc7 Nh3 Qa8 Bg7 Ra2 Qd1 Bf4 Rd6 Bg3 Na1 Nc2 Ng6 Nce1 Bd4 Raa7 Qc2 R2a4 Nhf4 Rdc8 Nh6 Rhd8 Nf7 h8N c4 Rh6 Bb6 Rc5 Nfe5 Nf7 Nd7 Rhh8 Rd5 R8c7 Rd6 Rhe8 Rd5 Nd6 Nf6+ Ke3 Rd4 Rdc8 Rd5 Red8 Ne8 Ke4 Qc3 Be2 Rd2 Bd3 Qc2
b2NNB2/P2Q2PN/1b1n2B1/1n2K1B1/BR5q/k1B3b1/2Pbb2q/1B1r3R w - - 0 1 illegal: No possible last move
1BB5/1P2Rq2/3K2P1/qB1r2Bk/Nn1B1qR1/nP3BR1/1b2n1rN/6Qq w - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 h5 Kd3 c5 Kc4 a5 d4 e5 f6 h4 b7 h3 b3 h2 d6 a4 Kd5 c4 f7+ Kd7 g7 a3 g6 a2 g5 c3 Bb5+ Nc6 Nf3 c2 Nc3 e4 Be3 c1Q Re1 h1N Na4 Qf6 Nh2 Nh6 g8B Ng4 g7 Ra5 g6 Ng3 Rb1 Be7 f8B a1Q Be6+ Ke8 g8B Qf7 Bg1 e3 d7+ Kd8 Re2 Ba3 Bd6 Nge5 Bb8 Ke7 d8R Kf6 Re1 Nb4+ Kd6 Kg5 d5 e2 Bd4 Rh7 Bc8 Qcf4 Rd7 Rh6 Re7 Bb2 Rg1 e1Q Rg2 Qc3 Qg1 Kh5 Re1 Qb1 Re3 Ne2 Rg4 Qbc1 Reg3 Nc4+ Kd7 Q1e1 d6 Qcf3 Kc7 Qh1 Kd7 Na3 Kc7 Qh7 Bd5 Qhf7 Bf3 Qed2 Bd3 Re5 d7 Rh8 d8B Qc3+ Kd6 Qc5+ Kd7 Qa5 Kd6 Re8 Re6 Re7 Bb5 Rc7 Bg5 Rc1 Qe3 Rg1 Re7 Rg2 Qg1 Rd5#
2k1r3/nnP1r1R1/R1PR3B/2R2Rr1/K1B1r2b/r1QbP1N1/bN6/1BR5 w - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 b4 gxf5 b3 axb3 g4 b4 Qg5 hxg5 Kd8 b5 Ke8 Kd2 Kd8 Kc3 h5 Kb3 a5 c4 d5 e6 h4 c6 g3 f6 d4 g6 d3 f7 h3 c5 g2 b6 d2 c7+ Ke7 g7 h2 b7 Nh6 g8R Ng4 Rg7 Ra6 Nc3 Nf2 Ka4 Nc6 b8R Ra7 b4 Ne4 b5 Nd6 b6 Ba6 Rc8 Nb7 Qc2 d1R Bh6 Rd3 Nd1 Rb3 e3 Bd3 Ne2 g1R Qc3 Rg5 Nb2 Rg8 Rg1 h1B Ng3 Bd5 Rd8 B5c4 Rd6 Bd5 Rc1 B5c4 Rg6 Bg7 f8R Bf6 Rf7+ Ke8 e7 Rf8 Re6 Kd7 e8B+ Kc8 Rd6 Bd8 Rf3 Bg8 Bf7 Re8 Rf5 Re4+ Bc4 Ra8 Rff6 Na7 Rf5 Rgg4 Bg5 Be2 Bh6 Bh4 Rde6 Rb4+ Ka3 Kd7 Bd3 Re8 Nh1 Nd6 Rg7+ Kc8 Ng3 Rg5 Bb1 Bf7 Reg6 R4e7 Rd1 a4 Rd2 Rbe4 b7+ Kd7 b8R Bfc4 Rb5 Kc8 Rf8 Nb7 Ra6 Bf7 c6 Bfc4 Kb4 a3 Rf4 a2 Rff5 a1R Rbc5 Ra3 Rh1 Ba2+ Rd4 Bec4 Rd6 Rb3+ Ka4 R4e6 Be2 Re4 Rc1 Rg6 Bh5 Rg5 Bf7 Bd3+ Bc4 Ra3+
1B3Bk1/1B3N2/RPB1nq2/Pr1b1BpN/1r2P1n1/N7/2b2b1r/1BQ2KR1 w - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 c5 fxe5 b4 d4 b3 dxc5 Nf6 axb3 Qb6 b4 Qd8 b5 Ng8 h4 g5 e4 f5 c4 Kf7 c6 d5 c7 f4 h6 d4 h7 d3 c5 f3 e6+ Kg7 c6 Ba3 e7 Kf7 e8B+ Kg7 h5 Bd7 c8B Nf6 h6+ Kf8 c7 Bb2 Nh3 Ng8 Nf4 Bg7 Ba3+ Qe7 Qc1 Nc6 Nh5 Nd4 Bb7 Ne6 c8B d2+ Kf2 d1R Bd3 Nf6 b6 Ba4 Bec6 Bc2 Rh3 Rd2+ Kf1 f2 Bc5 Kf7 Na3 Ng4 Rh4 Qd8 Bf8 Bd4 Rh3 Qf6 Rh1 Ba4 Bb1 Rb2 B8d7 Rd8 Rg1 Nf4 Bf5 Ne6 Ra2 Rb3 Rd2 Rb4 Rd3 Be3 Rd5 Rc8 Rd8 Bc2 Re8 Rc7 Ra8 Rd7 Ra6 Rd5 Qd1 Rdb5 Qc1 Rg8 h8B Rg7 Rg3 Kg8 Rg1 Rh7 Bhg7 Bc5 Bd6 Bd4 Bb8 Rh8 Bf8 Be3 Ke2 f1B+ Ke1 Bc4 h7+ Kf7 Bg7 Bc5 Bf8 Bd5 Kf1 Bf2 Rg2 Rg8 Rg1 Rg6 h8N+ Kg8 Nf7 Rh6 Nf4 Rh1 Nh5 Rh2
Bq3R2/3n2PN/4RpN1/1kn5/1r2BBn1/5KB1/n1BrP1QP/B2rb1N1 w - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 gxh5 g5 d4 c5 dxc5 Bb7 a4 Be4 axb5 Bg6 hxg6 Be7 Bd2 Bd6 Bc1 Bf8 Nf3 a5 Kf2 d5 c4 Kd7 b4 d4 g7 a4 e6+ Kc7 c6 Kb6 c7 a3 c8B d3 c5+ Kc7 e7 d2 e8B g4 c6 Kb6 c7 a2 Bf5 Rh6 c8N+ Kc7 b6+ Kb7 b5 Ra3 Ng5 Na6 Bg2+ Rc6 Qg1 d1R Nh7 Qd6 Ne7 Qb4 Bb2 Ra4 Bc2 Nh6 Ng6 g3+ Ke3 Be7 Bge4 g2 Nd2 Bh4 Nf3 Be1 Qf2 g1N Qg2 Ng4+ Kf4 Kc8 b7+ Kc7 b8B+ Kb6 Bd4+ Ka5 b6 Rd6 b7 Nc5 B8c6 Qb5 Rb1 a1N Bcd5 Qe8 Rb6 Nab3 Ba1 Rb4 Rc6 Rd8 Re6 Kb5 Bc7 Nc1 b8B Na2 Ba8 R8d2 Bce5 Nf6 Ke3 Qf8 Bg3 Nh3 Rf1 Nf2 Ng1 Nfd7 Bbd6 Qb8 Bc7 Nh1 Rff6 Nf2 Bcf4 Ng4+ Kf3 Nc3 Re8 Na2 Rfe6 f6 Rh8 Rbb1 Rf8 Rb4
1N3Kbk/3nQ3/B1B5/Bq1npR2/1b6/P1qB3B/1B1nPPNR/3Rr2n w - - 0 1 legal: proof: c4 b5 b4 a5 bxa5 d5 cxd5 g5 g4 c5 h4 f5 gxf5 g4 d4 Ra6 dxc5 Rc6 Qd4 Rg6 Qd1 Rg5 hxg5 Bd7 Nd2 Be6 Nb1 Bc8 Kd2 Kf7 Ke3 Kg7 Kd4 h5 Ke5 g3 a3 h4 f6+ Kh7 d6 g2 f7 b4 a6 b3 d7 b2 Ke6 h3 a7 h2 a8B Nc6 g6+ Kg7 Nf3 g1Q Nbd2 b1N Nh4 Qe8 Bb2+ Nc3 Ndf3 Ba6 d8B Bb5 Qd7 Rh6 Bh3 Qb1 Ba5 Nf6 Nd4 Ncd5 Ng2 Kh8 g7+ Kh7 g8B+ Kg7 Bh7 Qe1 Rd1 Bc4 Bd3 Ne5 c6 Nf3 c7 Rh8 c8B Qc3 Nc6 Nd2 Ba6 Ba2 Qd8 Nd7 Nb8 Rh5 Bc6 Kh8 Rhf1 h1N Qc7 Ng3 Rh1 Rg5 Rh2 Nh1 Nf4 Rg1 Ng2 Re1 Qa7 Bh6 Qc5 Be3 Qa7 Bc5 f8R+ Kg7 Qb7 Bb4 Rf5 Kh8 Qa7 Qc8 Kf7 e5 Qc5 Qb7 Qe7 Qb5 Ke8 Nf4 Bce4 Bg8 Bc6 Nf6+ Kf8 N4d5 Rf4 Nde4 Rf3 Nd2 Rf5 Nd7+
r1q1bR2/6P1/q3nN1Q/B2B1R1R/k2rrBKP/1NRrP1R1/1p6/r3R3 w - - 0 1 legal: proof: c4 e5 b4 a5 bxa5 d5 cxd5 h5 f4 g5 fxe5 g4 g3 h4 Qc2 Be7 Qb3 h3 Qd1 Bh4 gxh4 g3 Nc3 g2 Qb3 Nc6 Nb1 Nce7 Qc2 Nf5 Qd1 Ng3 hxg3 Qg5 Na3 Qf6 Nb1 Qd8 Kf2 Kd7 Kf3 f5 d4 c5 a4 b5 e6+ Kc7 e7 f4 e8R c4 g4 c3 a6 Kb6 a5+ Ka7 d6 h2 g5 b4 g6 b3 d7 c2 d5 b2 d6 Rb8 g7 Qc7 d8B Ra8 d7 Rh7 Qd2 Qb8 Kg4 f3 Qh6 f2 Nh3 g1R+ Bg2 f1Q Rf8 Qe1 Nd2 Qd1 Ng5 Rh8 Nge4 Qd6 Nb3 Re1 Rg1 h1R Nf6 Rh3 Bf4 c1R Bd5 Qc2 Rg3 Ne7 Bc7 Nf5 d8R Bd7 Rc8 Qc4 Bd8 Qc2 Rcc3 Be8 Bc7 Nd4 Rf7 Rhh1 e3 Ne6 Rf8 Red1 Bd8 Rd3 Rb1 Rcf1 Re1 Rh2 Bc7 Rhd2 Bd8 Kb8 Bc7+ Kc8 a7 Qa6 Rf7 Rd4 Rf8 R2d3 Bb6+ Qc4 a6 Rg8 Ba5 Rg1 Nh7 Kd7 Rf5 Re4 Rh5 Rd8 a8R Qc1 a7 Qa6 Bc4 Kc6 Nf6 R8d4 Bd5+ Kb5 Rac8 Ka4 a8R Qc2 R8c5 Rf1 Re2 Ra1 Re1 Bc6 Rf8 Bd7 Rf7 Ra8 Rf8 Be8 Bc6+ Qb5 Rcf5 Qc1 Bd5 Qa6 Rc8 Qcc6 Rc7 Qcb7 Rc3 Qc8
6rk/2BK1QpB/2pn1qb1/B2RR2q/1NB2n2/P2B2N1/P5PB/2qbR3 w - - 0 1 legal: proof: f4 b5 c4 e5 fxe5 d5 cxd5 f5 Na3 a5 Nb1 a4 h4 a3 bxa3 Be7 Qb3 Ra6 Qd1 Bg5 hxg5 Rf6 gxf6 Kf7 Qb3 Kf8 Qd1 Ke8 Kf2 Kf7 Ke3 h5 Kf4 b4 d4 c6 e4 h4 d6 h3 e6+ Kg6 Ke5 Kh7 d7 b3 Kd6 b2 d5 h2 e7 f4 e8B f3 e5 f2 e6 Ba6 f7 Be2 f8B Qh4 d8B Qh6 Bf7 Qh3 e7 Bb5 e8B Nh6 Bd2 Qh5 Bd3+ Qf5 Qb3 f1B Ne2 Ng8 Nbc3 b1Q Ng3 Qb2 Re1 Qc1 Re5 Bc4 Bc7 Be2 Re1 h1Q Be6 Na6 Kd7 Bh5 d6 Bg6 Nd5 Qhh5 Bda5 Qf6 Nb4 Ne7 B6f7 Bb5 Bfc4 Ba4 Bef7 Nd5 Bg8+ Kh6 Bh7 Nf4 Be7 Rg8 Bed8 Qd2 Bb8 Qc1 Bdb6 Nc7 Bg1 Qf3 Bh2 Ne8 Bbc7 Qd5 Qd1 Qc5 Qf3 Bd1 Qd5 Qb5 Qf7 Qc5 Kc8 Qd5 d7 Qb5 d8R Nd6+ Kd7 Qc5 R5e3 Qh5 Re5 Bf3 Rb8 Bge4 Rbb5 Bg4+ Bf5 Bd1 Bh3 Kh7 Rbd5 Kh8 Bf5 Re8 Bg6 Rg8 Bh7 Bg6
3B1r2/1PNpb1qR/n1R4P/1q6/1N1BK2N/Qr3Pk1/pN4n1/N1NB2n1 w - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Na6 b4 Nb8 b5 Ba6 Bg2 Bb7 Bf1 Bc8 b6 a5 b3 h5 gxh5 a4 Bb5 a3 Bf1 Ba6 Qd4 Bb5 Qd1 Ba4 bxa4 Qc8 Ke2 Qc7 Ke1 Qd8 Kd2 Kf7 Ke3 Kf6 h4 Ke5 c4 g5 f6 e6 h6 a2 h7 g4 c6 g3 h5 g2 f3 Bb4 c7 Nh6 c8N Nc6 a5 Nd4 f7 Qh4 f8N Nc6 c5 Na7 c6 Nf7 a6 Nb5 a7 Nbd6 c7 Nd8 b7 Be1 Ne2 g1N Nb6 Qh2 c8N Ba5 Ne7 Bc3 Ned5 Nh3 Na4 Bb2 Qd3 Nc6 Qa3 Qg3 Nd2 Qg7 Nb3 Nb8 Nb4 Na6 Ng6+ Kf5 Kd3 e5 Bg5 Rhf8 h8B Ng1 Nec1 Nc4 Be2 Ne3 Bd8 Ng2 Nh4+ Kf4 Bd1 Kg3 Ke4 Bd4 Rb1 Bc5 Nb2 Be7 Na1 Rc8 a8N Rc3 Nc7 Rb3 Kd5 e4 Rh2 e3 Ke4 Qg5 Bd4 e2 Rh1 Ne3 Rh2 e1Q Rc2 Qf1 h6 Kh3 Rg2 Qf6 Rg7 Ng2 Rh7 Qg5 Ne2 Kh2 Rc1 Qg7 Rc6 Kh3 Nc1 Qb5 Re6 Kh2 Rc6 Kg3
1QNb2q1/Kq6/BR3Rp1/2P1p1qN/N5N1/Pr2N1p1/kBP3B1/1r3nN1 w - - 0 1 illegal: Other
1k1n3R/1rqR1bB1/Rrn1R3/1PR1N2P/1QB1B2N/K3q1Pn/7b/1R1q3b w - - 0 1 illegal: No proof kernel
1N4rR/rPr5/1r3NPR/1R1BkbbB/rnq5/2n1B2B/BPK1n3/2Q3B1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Ke7 Kd2 c5 e4 h5 g4 f5 b6 a5 g6 c4 e6 Kf6 e5+ Ke7 g5 h4 b7 f4 g7 c3+ Kc2 a4 Ne2 a3 Nd2 f3 Ne4 h3 Nf6 a2 Be3 h2 Bh3 f2 Qc1 Qc7 d6+ Kd8 d7 Ke7 d8R f1R d5 Na6 Rd6 Qc4 Nd4 Nc5 Rb6 Ra7 Rb5 Nd3 d6+ Kd8 d7 Ke7 Rb1 a1R Bg1 R1a4 Be3 Nh6 g8B Nf5 Ra1 Bh6 d8B+ Kf8 e7+ Kg7 e8B Nd6 e6 Ne4 e7 Bf5 Bgf7 Rg8 Bc6 Rg1 e8B Rg4 g6 Bg5 Bed7 R4a6 Ra2 Rb6 Bcd5 Rh4 Nc6 Rh7 Rg1 h1R Nb8 Rh4 Ra6 Rf4 Bg4 Rh7 Bh5 Rg4 Bc7 Rh4 Bh2 Rf4 Rh1 Rh4 Kb1 c2+ Ka1 Nc3 Bhg1 Qb4 Ba2 Qc4 Bd5 Rd4 Bhf3 Rg4 Rh6 Re4 Bh5 Rg4 Qd2 c1N B7e6 N1e2 Qc1 Qc8 Ra3 Rga4 Bd7 Qc4 Bc8 Nd1 Kb1 Ndc3+ Kc2 Kf8 Qf1 Ke7 Qc1 Kd6 Bd7 Ke5 Rab3 Be4 Bh3 Rc7 R3b4 Bf5 Rh8 Qc5 Rh4 Qc6 B5g4 Qc5 R4h6 Qc4 Bh5 Nb4+
B5Q1/bBr1B2R/RP1rn2B/6Nb/P1PnK3/q6r/3kbN1B/rnN3B1 w - - 0 1 illegal: No proof kernel
1RR1bNK1/qR2N3/2n2Pq1/rr4B1/1Nb4b/QPPBN2k/Nb1N4/4n2r w - - 0 1 illegal: No possible last move
kBR5/3K1NR1/1rP1P3/3N2Bn/1qbrBb2/3BQP2/rq1Bb3/B2n2Rr w - - 0 1 illegal: No proof kernel
3NRnr1/2brRRQr/1P2B3/3K3R/5B1q/PPR5/bk1Nq1nb/4rR1B w - - 0 1 illegal: No proof kernel
BqRB1Nb1/1P2Q2n/2n1RP2/4RbB1/P5r1/2qk1rb1/r1R2RK1/N3R2r w - - 0 1 illegal: No proof kernel
1q3K2/P1n3NN/r1b3B1/N1BB2nB/2pR1b1P/B1Q4r/1BR1P1r1/5bnk w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kf3 g5 Ke4 c5 d4 b5 a4 b4 h4 b3 a6 b2 h6 c4 h7 g4 e6 Kf6 a5 g3 e7 g2 e8B Bc5 d6 Nd7 Kd5 Kf5 a7 Kg4 a6 Kg3 Nd2 b1N Nb3 f5 Ke6 f4 Kf7 f3 d5 f2 Qd4 Na3 Na5 Bb4 Nh3 g1R Ra2 Nc5 d7 Nb3 d6 Ne7 Ng5 Bb7 Qc3+ Bf3 Bh3 f1B Rc2 Kf2 Bg4 Kg2 Bh5 Qb8 d8N Nc8 d7 Rg8 h8B Nd2 Nh7 Rg3 Ne6 Nd6+ Kf8 Rh3 d8B Nab5 Ng7 Bc6 Ba3 Nf7+ Be7 Nc7 Bc5 Ng5 Bg6 Rd3 Rh3 Ndf3 Rg3+ Kh1 Rg4 Rg2 Rd4 Ng1 Bh5 Qc8 Bg6 Rh3 Bh5 Rb8 a8B Rb6 a7 Ra6 Bg6 Qb8 Bb7 Bb5 Bd5 Bc6 Bh5 Qb7 Beg6 Qb6 Qe3 Bd2 Qc3 Qb8+ Ne8 Be3 Qd3 Rg3 Rg4 Bd7 Bhb2 Bb5 Qc3 Bc6 Re4 Bf4 Rd4 Qb5 Ng7 Rh3 Bg8 Qb6 Bd5 Qb8+
q5b1/1rbR3P/1N2K3/k7/1RnrN2B/NQ1pnPNN/2Pqnb2/1N3B1R w - - 0 1 illegal: No possible last move
2kr1R1B/4P2P/2b1nK2/1bpq2Rr/3R2P1/qq1nb2N/QB1B1N2/B4BB1 w - - 0 1 illegal: No proof kernel
3n1Q2/NN1P2N1/1N4n1/K1q2BP1/RpbqNb1N/2Bkr3/nb2rB1P/2R5 w - - 0 1 illegal: No proof kernel
3q1k2/Pr2pBb1/n1bQB2B/3R2qN/Pb1Pn2r/3n1B2/5RR1/N2KB1B1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 c5 a4 h5 g4 b5 f6 b4 g6 h4 d6 b3 f7+ Kd7 g5 b2 a6 h3 a7 h2 g7 c4 f5 c3 f6 c2 g6 Qa5 Bg2 Qb6 Nh3 Nh6 g8B Qb7 g7 Ng4 Ra2 Qb3 Nf4 Nh6 Nh5 Qa3 Bf3 Qc5 Na3 Ke6 d7 b1N d8B Bd7 Bb6 Qg5 Bg1 Bc6 d3 Rh7 Bd2 c1B Nc2 Na6 Na1 Rb8 Bb4 Nc3 Rg2 Ba3 Qd2 Ne2 Kd1 Ng3 d4 Rb5 Qf4 Ne4 Be1 Ng4 Qb8 Ne5 Qd6+ Kf5 Be3 Kg6 Rf1 h1Q Bg1 Bd7 Rff2 Be8 Rc2 Kh6 Rc5 Rb7 Rd5 Rh8 Bh7 Qh3 g8B Qd7 Bg6 Bg7 f8R Qd8 Be6 Bc6 f7 Bc5 Rf2 Nd3 Rg8 Rh7 f8B Bb4 Bgf7 Qh4 Rh8 Qg3 Nf6 Qg5 Bg8 Kg6 Rf1 Rh2 Rf2 Rh1 Rhh2 Bh8 Rhg2 Rh4 Nh5 Be5 Bgf7+ Kh7 Bh6 Bg7 Bh3 Kh8 Bg6 Kg8 Bf7+ Kf8 Bc8 Bb5 Bce6 Bc6
4N1rB/Nr3P2/qR3n1R/n2BbBn1/4PKB1/B3pP1b/2r5/1B1k1NnQ w - - 0 1 illegal: No proof kernel
2b5/k1Pr1n2/2p4B/P4PBn/NR2R1K1/r1RQ3R/1b1qN1B1/1bR1bR1r w - - 0 1 illegal: No proof kernel
1q1k2b1/Q1b1NR1r/Rnq1B2K/7R/1R1r1R1p/1Prr4/P4N1P/n3BN1R w - - 0 1 legal: proof: f4 b5 b4 a5 bxa5 g5 fxg5 e5 d4 b4 dxe5 b3 cxb3 Ba6 Kf2 Bb7 Ke1 Bc8 Kd2 f5 Ke3 h5 Kf4 c5 g4 d5 e4 h4 g6 c4 g7 c3 g5 d4 g6 d3 e6 d2 e7 c2 Kg5 f4 e5 f3 a6 f2 a7 Bg4 Bc4 f1R Be6 Rf3 Nh3 Rd3 Qg1 d1Q Bd2 c1R Nf2 Qd5 Be1 Rc5 Nd2 Qd8 Nf1 Nh6 g8N Nf5 g7 Ne3 Rc1 Rh6 Rc4 Qc2 Rb4 Nd7 Rf4 Rb8 a8R Nb6 Ra6 Rcc3 Rf7 Rh5+ Kg6 Rf5 Kh6 Rb7 Bc8 Qd6+ Rf6 Qc7 Ne4 Nbd5 Rfb6 Bh3 Rb4 Qg2 Qf2 Nd1 Qa7 Nb6 Nf2 Rf4 Bf5 Qb8 Bg4 Kf7 e8R Rfd4 Rd8 Ne3 Rd5 Ke8 e6 Bd6 e7 Qe4 Rh5 Nc2 Bf5 Qc6 Bg4 Kf7 e8R Na1 Re4 Rc7 Rf4+ Ke8 Bc8 Kd8 Bd7 Bf5 Be6 Rf7 Ne7 Bc7 Ra3 Bh7 g8R+ Rf8 Rh8 Bg8 Rh7 Rf5 Rf7 Rg5 Raa4 Rg7 Ra6 Rh7+
1k2b2B/1nR1N1rN/1NnRNr1Q/7n/K1P1q2n/1P3P1B/1Nq1p1Nb/3R4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kc3 Kd7 Kb3 Kc7 c4 e5 h4 g5 f6 a5 h6 d4 b6+ Kb7 f7 d3 c6+ Ka6 b7 Ka7 h7 d2 f3 g4 h5 e4 c7 e3 h6 g3 Ka4 e2 Bh3 g2 Nc3 Bf5 c8R Ne7 Rc7 Rg8 h8N Qd4 h7 Nbc6 Ng6 Qe4 h8N Kb8 Nh4 Rg7 N8g6 Bd7 Qb3 Be8 Nd1 Nf5 Qe3 Ra7 Qh6 Bd6 f8N Bh2 Ne6 Ra6 Ne7 Rb6 Ra3 Ra6 Rd3 Rb6 Nhg6 Nh4 Ngf8 Ra6 Nh7 Rb6 Ka3 a4 Rd6 Ra6 Bg4 Rb6 Nh3 g1N Nhf4 Nh3 Ng2 Nf4 Bh3 Nh5 Rf1 Rb5 Re1 Rf5 Rh1 Rf6 b3 Na5 Kb4 a3 Nb2 a2 Rd1 a1N Ka3 Nc6 Ka4 Nc2 Rf1 Ne3 Rd1 Ka7 b8N+ Ka8 Rg1 d1Q Nd7 Qdc2 Rgd1 Nef5 Nb6+ Kb8 Be3 Rg5 Bd4 Rg7 Rdd7 Nd6 Bc3 Nb7 R7d6 Rf5 Be5 Rg4 Bg7 Rf6 Bh8 Rg7
3n2qN/1b1R1Nb1/NN1B3Q/2NBqk2/BP3rbP/3n1N2/1p1K3P/R2b2r1 w - - 0 1 illegal: No proof kernel
5NQB/1BNR2r1/4r1b1/P1Nb1npR/N1KR4/2nPN1P1/5N1b/1qkb1q2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Qd7 h4 Qd6 h5 Qg6 hxg6 Nb8 Ke2 Kd7 Kd3 Kd6 f4 Kc5 a4 Kb4 f6 e5 f5 b5 g7 h5 f7 c5 d6 c4+ Kc2 h4 d7 e4 d8R e3 a6 h3 a7 h2 a5 c3 Kd3 e2 f6 e1Q Nh3 c2 Rd7 Kb3 Ra4 b4 Bb2 Nh6 g8N Nc6 Nc3 Ne7 Nf2 Nd5 Ne7 Rh7 Nf5 Bd6 f8N Rg7 Ne3 Nf5 f7 Be5 Qe2 c1Q Ne6 Bd6 f8N Qb1+ Nc2 Rb8 a8N Rb6 Nac7 Qed1 Qh5 Ra6 Be2 Qf1 Qh7 Bb7 Qg8 Be5 Rg1 h1B Ba1 Bh2 g3 Bf3 Rh1 Qfc1 Bf1 Bd1 Bg2 Rb6 Ra2 Ba8 Na4 Nc3 Rd4 Bd5 Bf3 Qbb2 Ne3 Qbb1+ Rc2 Ka3 Nec5 b3 Bg2 b2 Be4 Bf7 Bb7 Re6 Kc4 Bg6 d3 Ka2 Ned5 Qf4 Ne3 Ka3 Nfe4 Qf1 Rd7 Qc1 Nf2 b1B Rb2 Bbc2 Rb6 Qb1 Rbd6 Ka2 Rd4 Bb3+ Kb4 Bd5+ Bb2 Bg1 Rh6 Bh2 Rh5 Qc2 Ba1 Kb1 Bb2 Bg2 Ba1 Kc1 Kc4 Qb1 Qh7 Rf7 R4d5 Ne4 Bh8 Rg7 Qg8 Nc3 Rd4 Bd5+
1b6/QB2qn2/2PBR1rB/1b1N1Bp1/N2PB3/BNP2qqK/1q5R/n1r3k1 w - - 0 1 illegal: No possible last move
Q1b1r3/2P3B1/8/2qNNbK1/2r2bN1/1P1nbPn1/3kBNpB/Rq1N2RN w - - 0 1 illegal: No possible last move
B1r2rk1/1PB1q3/3BnBBP/1b2qRK1/2B1Q3/1N1Rr3/2N1pP1r/n1b3N1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ne2 Kf7 Kd2 a5 Ke3 g5 c4 e5 b4 d5 h4 a4 f6 a3 c6 e4 b6 a2 c5 g4 Kf4 e3 b5 d4 c7 d3 c6 d2 Qc2 d1Q Ba3 g3 Qe4 g2 Nd2 g1R Rh3 Be6 c8B Rh1 c7 Nd7 Nb3 Be7 Ng1 Nb8 b7 Bc4 Bf5 Bd3 Bg6+ Kf8 f7 Na6 b8B Nf6 c8B Ne8 b6 Ng7 Bc7 Qc2 Bb7 Rc8 Ba8 Qc5 b7 Qb5 Rd1 a1R Rf3 Ne6+ Kg4 Qa4 Rf5 Bb5 Bc4 Rh2 Rd3 Re1 Bb4 Kg7 Bc5 Bg5 B5d6 Nb4 f8N Nd4 Nc5 Rg8 Nb3 Qe7 Ne6+ Kh8 h6 Qa1 h7 Nbc2 h5 Rgf8 Nec5 Ne6 Na6 Qb2 Nb4 Na1 Nc2 Kg7 h8B+ Kg8 h6 Qe5 Rd2 Rd1 Rd5 e2 Bf6 Bc1 Rd4 Rd3 Rd5 Nf4 Kg5 Re3 Rd3+ Ne6+
r4n2/Pq2q2k/1P5N/1B1r1b2/2qq3B/pKR4Q/RNP1RR1R/1nbB1R2 w - - 0 1 illegal: No proof kernel
br1Q1nn1/q5NR/2k5/2pR3q/1r1nnR1R/BPPRK1PN/4B3/2nR2B1 w - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 axb3 Bc5 b4 Be3 b5 Bf4 Bg2 Ne7 Bf1 Bg3 fxg3 Ng8 Kf2 h5 e4 f5 c3 a5 e6 d5 b6 h4 g6 h3 b3 c6 g7 d4 e7 Kd7 e8R f4 g5 h2 g6 d3 b7 f3 e5 a4 e6+ Kc7 e7 d2 Rf8 a3 e8R a2 Re4 Rh4 Be2 Bg4 Ke3 f2 Ba3 Bf3 Nh3 Nd7 Rff4 Nf8 b8B+ Kb7 Re5 Qc7 Ba7 Rb8 Rd5 Qa5 B7c5 Qa7 Bb6 Nh6 Bd4 c5 g8R Kc6 Rh8 Ng8 g7 Rg4 Rh4 f1N+ Kd3 Bg2 Bg1 Bf3 Rff5 Rgb4 Rff4 Ne3 Rh7 Ng2 Rhh4 Ne1+ Ke3 Nd3 Rh7 Nf6 g8R Nc1 Rd3 Bg2 Rg5 Ng8 Rgd5 Bf3 Bb2 Be4 Na3 Bg2 Rb1 a1N Nc4 Bf3 Ba3 Nc2+ Kf2 Nd4 Ne3 Be4 Nf5 Bg2 Ke3 Bf3 Qe1 d1Q Ng7 Be4 Qd2 Bg2 Bf1 Qh5 Be2 Be4 Bf2 Bg2 Rd1 h1N Bg1 Nf2 Rh4 Nb5 Rf1 Ne4 Rff4 Nd4 Ra1 Na2 Rd1 Nc1 Rd6+ Kb5 Ne8 Nef6 Ng7 Ba8 Rd8 Nf3 R3d7+ Kb6 Qd5 Ne4 Qg5 Ra4 R7d3 Nd4 Rd5 Rb4 Qd8+ Kc6
2R1r2B/2n5/Pp6/Q1nbP1NN/1n4KB/nPn2R1N/2q3qB/r1k2BBB w - - 0 1 illegal: No proof kernel
r7/pn1q1B2/3Qq2N/2rR3P/PNNN1N1N/2R2Br1/bB1rqPn1/4k2K w - - 0 1 legal: proof: c4 f5 b4 h5 e4 c5 exf5 e6 bxc5 h4 d4 h3 c6 Rh6 d5 Be7 c5 Rh8 d6 Kf7 gxh3 Ke8 h4 Qb6 h5 Bd8 Qd2 Bc7 Qd1 Qb2 dxc7 Qf6 Bg5 Qe7 Bc1 Qd8 a4 Kf7 h4 Kf6 h6 Ke5 h5 Ke4 f6 d5 h7 g5 f7 b5 f8N d4 Bh3 e5 Kf1 d3 Kg2 d2 Be6 Kd3 Ra2 g4 Ne2 g3 Nbc3 e4 Ng6 e3 Nd4 b4 Bf7 b3 Nh4 b2 Nce2 b1Q Rh3 Nf6 Bb2 Qd7 Kh1 Nd5 Ra1 Ba6 c8B Nf4 c7 Ng2 c6 Qa2 Bb7 Qae6 c8N Bc4 c7 Ba2 Nd6 Nc6 c8N Nd8 Bf3 Nb7 Nb6 Rhc8 h8N Rc3 Nd5 Rc5 Qe1 d1R Nc4 Rd2 Rd1 Qc7 Qg1 Qcc6 Qh2 Qcd7 Nc6 Kc2 Nef4 e2 Ndb4+ Kb3 Rf1 e1Q Rg1 Q1e2 Rd1 Rc2 Rd5 Rd2 Na6 Kc2 Nab4+ Kd1 Nd4 Qc8 Nhf5 Qd8 Nhg6 Ke1 Ngh4 Qdd7 Nh6 Ne3 Kg1 g2 Qg3 Qg6 Kh2 Qge6 Qg6 g1R Qf6 Qee8 Qd6 Rg3 Kh1 Ng2 Be4 Rg8 Rc3 Rg3 Bf3 Q8e6
R1bN1RBr/bn2B1BP/B1nb2Kr/4b3/P1N3Bp/R7/1r4nP/2kB1Q2 w - - 0 1 legal: proof: f4 a5 g4 h5 b4 e5 bxa5 d5 fxe5 h4 c4 Qg5 cxd5 Qh5 gxh5 Bh3 Qc2 Be6 Qd1 Bc8 Kf2 Kd7 Ke3 b5 Ke4 c5 Kf5 g5 a4 b4 d4 b3 e4 c4 a6 f6 d6 Kc6+ e6 b2 d5+ Kc5 h6 Kb4 h7 g4 d7 g3 d8R c3 d6 c2 e5 Kb3 d7 g2 e7 Nc6 e8B Be7 a7 Nd4+ Kg6 f5 e6 f4 Nf3 g1B Nbd2+ Kc3 Bf7 b1R Ng5 f3 Ba6 f2 Nc4 f1N Ra3+ Nb3 Bb2+ Kb4 Qc1 Nc5 Bg7 Ne3 Qf1 Bd6 e7 c1B e8B Ng2 Ne6 Bf2 Rg1 Bcf4 Rh1 Rb8 a8B Rb2 Bf3 Bfe5 Bd1 Nb7 Bg4 Ba7 Rg1 Nf6 Bg8 Nd5 Bef7 Ra8 Rf8 Rb8 d8B Ne7+ Kg5 Ra8 Bfh5 Nc6 Be7 Rb8 Nd8 Ra8 Ra2 Kc3 Kg6 Kc2 Ra3 Rb8 Bd1+ Kc1 Bhf3 Nc5 Bg4 R8b5 Ra2 Nb7 Ra3 Ne3 Rg3 Ng2 Rgd3 Bf6 Rdb3 Rh5 Rb5 Bfe5 Rbb3 Nc5 Rb8 Nb7 Ra8 Rh6+
1r2Q3/3Nn3/r2bk1KR/BN2N1p1/4NP2/P1nRP3/1rN1b1Bp/3Bn1qN w - - 0 1 illegal: No possible last move, all moves rejected
1r2k1n1/PNqRb1R1/Rr3p2/3p2Q1/Rr1BBbNR/R3P3/B1nP2K1/6n1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Ba6 bxa5 b4 c4 Bb5 cxb5 Bd6 Qa4 Bc5 Qd1 Bf8 Kf2 d5 a4 g5 h4 c5 e3 f6 h6 b3 a6 c4 e6 g4 h5 g3+ Kg2 c3 e7 c2 a5 b2 b6 Rh7 b7 Kf7 e8B+ Ke7 a7 Na6 b8R Qd7 Na3 b1N Rb3 Qc6 Nb5 Rb8 a8R Rc8 Bc4 Rd8 Ra4 Nb8 a6 Na3 Nf3 Qd7 Nd6 Qb5 Ne5 Nd7 Bg6 Qb8 Nb7 Re8 Bb2 c1B Qg1 Nb5 Be4 Nd4 Rba3 Nc2 Rh4 Qc7 Ng4 Ne5 Bd4 Bb2 Ba2 Rb8 Ra7 Rf7 h7 Ke8 h8R Nf3 h6 Be7 Rh7 Bc3 Rg7 Ba1 Qb1 Ng1 h7 Bc3 h8R Rf8 Nd8 Rb6 R8h7 Bcb4 Qc1 Bbd6 Nb7 Bf4 Qe1 Kd7 Qe2 Rb8 Qf2 Ke8 Qf3 Bh6 Qf5 Bf4 Qg5 Rb4 Kf1 g2+ Kf2 Bf8 Rd7 Be7 Rg7 Ne2 Ra8 g1R Kf3 Rgb1 Kg2 R1b3 a7 Rd8 Rb8 Ng1 Ra6 Rb6 Rc8 R3b4 R6a4 Qb8 Rc6 Qc7 Re6 Rb8 Rc6 R6b5 Rca6 Rb6
Nq2Bqk1/1R1B4/P2b4/1r1bp2P/1NB2B2/nR2nP1Q/3p1BN1/4qBrK w - - 0 1 illegal: No possible last move
3n1RqN/R3p2k/RNQ2qrr/1B1PnR1p/3b2B1/3R1R1b/P2PK3/3bB3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kf7 g4 Kg7 g6 c5 a6 h5 f6+ Kh6 a7 b5 g7 c4 g5+ Kh7 f7 b4 g6+ Kh6 f5 b3 f6 c3 Ne2 c2 Bb2 c1Q Rh3 Qc5 Qc2 Bf5 Rd3 Qe8 Nbc3 Qeb5 Na4 Qbb4 Be5 b2 Bg3 b1B Nb6 Qb3 Nf4 Qba3 Ke2 Qb2 Be1 Qc8 Qc6 Bc2 Rb1 Qb4 Rbb3 Nd7 Ra3 Qc4 Ra6 Rb8 a8R Ne5 R8a7 Qc3 Rf3 Kg5 Rd3 Nh6 g8B Qb2 g7 Bh3 Ng6 Rh7 Nh8 Bd1+ Kf2 Qg4 Rf3 Rd8 Bb5 Rd6 Ke3 Nf5+ Kf2 Rh6 Bh7 Qc3 g8R+ Bg7 f8R Nd4 f7 Ne6 Bf5 Nd8 Bd7 Qe6 Rd3 Qg6 Bg4 Qf6+ Rf3 Rg6 Rf5+ Kh6 Rf3 Kh7 Rf5 Bb3 Ke2 Qg3 Rf3 Bh6 Rf5 Be3 Rf3 Bf2 Rd3 Rh6 Rg5 Be3 Rf5 Bd4 Re8 Re6 f8R Qg1 Bf3 Qg8 Bg4 Qfg7 R8f7 Reg6 Ref8 Ba4 Rff3 Bc2 R7f4 Qf6 Rf5 Bd1+
N1b1R1N1/2P1n1p1/2q1R1P1/1pB2PN1/2r1NN1b/rk4KB/1B1nNr2/2q4Q w - - 0 1 illegal: No possible last move
1b1b2N1/NPrn1R1N/2B3k1/1RP2b1p/pR2q3/B1nP1N2/2Q4r/K2N1q1N w - - 0 1 illegal: No proof kernel
3b2r1/P2b1B2/qNR1PpN1/Nn2P1r1/B1Br4/1p1n2q1/1K1BBk2/Q2R3B w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 e4 b5 g4 d5 a4 h5 c6 f6 a6 b4+ Kb2 h4 c4 h3 a7 b3 g6 d4 a5 d3 g5 d2 g7 h2 c5 Rh6 g6 Ba6 c7 Rh5 c8N Bc4 c6 Rh6 a6 Qd5 c7 Bc5 Na3 Nd7 Ne2 Bf8 Nb6 Qb7 c8B Bb5 Nac4 Be7 Na5 Bd8 Ra2 Rb8 a8B Ne7 a7 Nc6 Rg1 Rh7 g8B+ Rf7 g7 h1Q Qe1 d1R Bd2 Qg2 Rh1 Nd4 Nf4+ Ke7 Ra4 Qa6 Ng6+ Ke6 Rc4 Qg3 Be2 Ba4 Bcb7 Nc5 Bc6 Bb5 Be8 Bd7 Qg1 Nb5 Qd4 Rc1 Rd1 Rc3 Bc6 Rd3 Rcc1 Ra8 Qa4 Rd4 Qa1 Nc7 Ba4 Nb5 Bh7 Bc8 Bc6 Bd7 g8B Rc8 Nh8 Rb8 Bg6 Ra8 Bgh5 Rc8 Ng6 Nd3+ Kb1 Rb8 Ba8 Rc8 Rc6+ Rd6 Nf4+ Ke7 Rc7 Rg7 Bc4 Rg5 e6 Rdd5 Rc6 Bc7 Bf7 Rcg8 Rc5 Bd8 Rc7 Kd6 Bc6 Kc5 e5 Rd6 Ng6 Rd5 Qa2 Rd6 Bh1+ Kd4 Rc6 Rd5 Be1 Ke3 Bd2+ Kf2 Qa1 Nc5 Kc1 Rd4 Kb2 Nd3+
N2N1k2/1B1r1q2/PpB3rP/BQ2pBRn/R3N3/4B2r/bK5P/b1r1Bn2 w - - 0 1 illegal: No possible last move
1q6/BB1Kbr2/2qP2N1/1NrpN1N1/Q2PBN2/1q1p2R1/nr3PR1/k5Nb w - - 0 1 illegal: Other
q2R4/3PR2R/B1pK1R2/2PPN1rR/b1q3n1/RpN2Q1N/2k5/nq2bqB1 w - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 a5 exd5 a4 h4 a3 bxa3 Bf5 a4 Bd7 a5 Bc8 g4 b5 h5 Qd7 g6 Nf6 g5 Qd8 g7 Ng8 Bc4 Ra6 Bf1 Rg6 hxg6 Bb7 Qg4 Ba6 Qd1 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 h5 a4 f5 c4 c6 d6 f4 c5 h4 a6 f3 d7 e6 a5 h3 a7 f2 a8N h2 d5 Be7 a6 Nf6 g8R Rh5 a7 Na6 g7 Qe8 Be2 f1Q Rh8 Qg8 Nc3 Ng4+ Kd4 Bd6 g6 Rg5 Rh5 Bg3 Nb6 Be1 a8R e5+ Ke4 Qd8 g8R Bb7 Ra7 Qa8 g7 Bc8 Qd3 Kb3 Nc4 b4 Qf3 Kc2 Nh3 b3 Rd8 Nb4 g8R Ba6 Rg6 Bb5 R7a3 Ba4 Bb2 Qf2 Rgh6 Qh4 Rf1 h1Q Rh7 Qg2 Bc1 Qg1 Be3 Qh1 Rf2 Qf1 Re7 Rg8 Kf5 e4 Ke6 Rg5 Bd4 e3 Kd6 Qg3+ Ne5 Qf4 Ba6+ e2 Be3 Qc4 Rh2 Kb2 Rd1 Nc2 Bg1 Na1 Rd4 Kc2 Rf4 Bd2 Rf6 e1Q Nf2 Qd1 R2h4 Qc1 Nh3 Be1 Rhh7 Qb2 R4h5 Qb1
Q1B1K1N1/1P2Rn2/np3b2/1PB3k1/RqP2RbN/3p1r1R/1b2b3/2NRR2q w - - 0 1 legal: proof: e4 f5 exf5 c5 d4 Qb6 dxc5 Qc7 h4 Qd8 a4 g5 hxg5 b6 a5 Nc6 a6 Rb8 Rh3 Rb7 axb7 a5 Rh1 Nb8 Ke2 Kf7 Kf3 e5 Ke4 h5 Kd5 a4 f4 e4 c4 h4 b4 a3 g4 e3 b5 d6 g6+ Kf6 g5+ Kg7 c6 h3 c7 a2 Ba3 e2 Qa4 e1Q Bc5 h2 Bh3 Qd7 Nd2 Qd1 Qa8 Qe8 Nf3 Qde2 Nb3 Rh6 f6+ Kh8 f5 Bg7 f7 Bc3 f8R Kg7 f6+ Kh8 f7 Kg7 Rae1 a1B Nc1 Bd7 c8R Q2e7 Nh4 Bg4 Rd8 Na6 Rd7 Rh7 Kc6 Nh6 Rh8 d5 f8R d4 Rf4 d3 Rd1 Be2 Rhe1 Bab2 Bg4 Qg8 Rc7 Be5 Bc8 Nf7 Rd7 Qef8 Re7 h1B+ Kd7 Rh5 Rh6 Bf6 Rh8 Bhf3 Rh6 Qh8 Rh7+ Kg8 Rh6 Qfg7 Ke8 Bg4 Rh7 Qh6 g7 Qg6 Nf5 Rh2 Rh3 Rf2 Nh4 Kh7+ g8R Rf3 Rf8 Qgg8 g6+ Kh6 g7 Qgh7 g8N+ Kg5 Rd2 Bbd4 Ra2 Bb2 Ra5 Qe4 Ra4 Qd4 Rd1 Qc3 Re1 Qb4 Rd1 Nh6 Rff7 Qh7 Re3 Qe4+ Re7 Qd5 R3e4 Nf7 R4e6 Qd4 Ree4 Qg1 R4e6 Qh1 Re3 Bf1 Ree1 Be2
2brb3/B2bBRP1/8/bpp1kP2/1B4BN/RN2b1rR/1PB3Qn/K5nB w - - 0 1 illegal: No proof kernel
n2K2R1/Nb2P3/6Bb/1q2P3/Np1pp2B/nPNNb2R/1NkBr1Q1/1N4r1 w - - 0 1 illegal: No proof kernel
3Rq1B1/5PNn/r2Nb1p1/b2N2BN/kP1R1KP1/3qNp2/p1qR2N1/4Qr2 w - - 0 1 illegal: No proof kernel
7q/Bp2Kp2/bR1n4/4NP2/2PkqNB1/p1b2P1N/1N2Q2R/nNrq1B1N w - - 0 1 illegal: No proof kernel
n4K2/B3pp2/NN1bP3/3Q1NPB/r3Bbpn/6B1/2nRrPr1/RB1B1k2 w - - 1 2 illegal: No proof kernel
3r2BB/k2B2N1/1qp5/KP1Rp3/BNPB2p1/n1pBNQ2/nq2P1r1/1R1b4 w - - 0 2 illegal: Other
r3R1r1/r2pN1B1/R1K2RNB/1pn1R3/1PkprP2/RR6/2qP2bp/3Q3B w - - 0 1 illegal: Other
2B1Rb2/p1K2BqN/P2B3k/1r3p1B/1p3r1B/5PPR/B1p1p1NQ/rb1R4 w - - 0 1 illegal: No proof kernel
qb1QNr1q/1nBB4/6kb/2n1p3/R1RpPPn1/1B1P2NN/1B1r3B/Kb5B w - - 0 1 illegal: No proof kernel
3B2n1/p1N1nBR1/Nqk4P/PRB1B1R1/r1n2bp1/4Q1Pb/1bB5/Br2b2K w - - 0 1 illegal: No proof kernel
N3K2k/2Q3pp/R1n3R1/2qBbnP1/1BpB1brP/3n2B1/2PB2RB/b2r1N2 w - - 1 3 legal: proof: e4 e5 a4 d5 f3 b5 axb5 Bf5 exd5 e4 Nc3 e3 Nb1 Be4 fxe4 Ba3 Ne2 Bb4 Ng1 Bf8 Ke2 a5 Kd3 c5 Kc4 f5 g4 Kf7 b4 f4 h4 e2 d4 e1B e5 a4 e6+ Kg6 d6 f3 Kd5 c4 g5 a3 d7 a2 b6 f2 b7 Bd2 e7 Ra4 Kd6 Ra7 b5 Ra4 b6 Na6 b8B Rb4 d5 Kf7 b7 Bc3 Nh3 Ra4 Rg1 Nb4 Nf4 Nf6 Nd2 Kg8 Ne6 Na6 Bg2 f1N Nc7 Ne3 Nf1 Neg4 Bd2 Nf2 Na8 Qc8 d8B Nh1 Bb6 Bb2 Bd4 Nh5 Qb1 Bc3 Qb6 Nf4 Qc7 Ra5 Be4 Ra3 Rg2 Rb3 Kc6 Ra3 e8R Ng3 d6 Nd3 d7 Nf5 Re6 Bd6 d8B Bf4 Be7 Bb2 Rg6 Nab4+ Kb5 Nc6 Beb4 Nc1 Kc5 Nd3+ Kd5 Qf8 Ke6 Qc5 Kd7 Bc3 Ke8 Bb2 Re1 a1B Bf3 Bc3 Ree6 Rb3 Be4 Rb1 Bd5 Rd1 Ba7 Bcb2 b8B Bc3 Bg1 Bce5 Bh2 Qb5 Bd4 Qc5 Ne3 Rg1 Rf2 Rg2 Nf1 Rg4 Rg2 Be3 Qb7 Bc7 Be4 Nd6+ Kd7 Ne7 Bb2 Nf4 Bdc1 Ndf5 Ra6 Nc6 Bf3 Bd8 B8e5 Bf6 Qc7 Bd2 Bec3 Be3 Be1 Be5 Be4 Ne2 Beg3 B3f4 Be3 Nc1 B2c3 Kf7 Bef2 Rc8 Bce1 Kg8 Bfg1 Rf8 Bf3 Rf6 Ke8 Rd6 Bec3 Rd1 Bd2 Kh8 Bd4 Nd3 Be4 Bb2 Bd5 Ba1
1qB1RB2/2qppp1R/3B1B1B/n2P4/4Pb1N/1Q3rR1/1P1nBKN1/1rk2b1q w - - 0 1 illegal: No proof kernel
nrkr2N1/Rp5p/1rPK3B/p4N1R/1PN4P/1n2qNN1/3B1bB1/1q1bN1Q1 w - - 0 1 illegal: No proof kernel
N2nq3/p6B/kbRn1Pp1/2Q2NPb/P1R1N3/R2rBRKr/p2p3R/4R2b w - - 0 1 illegal: Other
B5B1/1B1k1BNq/3r1PR1/qr2QK2/4q2N/B3b1B1/1PP3n1/n1R1Qbq1 w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 Nf6 axb5 Ng8 e3 Bb7 e4 Bc8 h4 g5 hxg5 f5 exf5 a6 bxa6 Bh6 Rh3 Bg7 Rh1 Bf8 Ke2 d5 Ke3 e5 f4 h5 g4 h4 g6 d4+ Ke4 d3 a7 d2 g5 h3 f6 h2 c6 Na6 f7+ Ke7 g7 Nb8 f5 Qb6 c7 Qf2 f6+ Kd7 g6 Qc5 Qe1 d1Q Nh3 Na6 Rg1 h1Q+ Kf5 Qa5 Ng5 Bc5 f8B e4 Bc4 e3 Nd2 e2 Bf7 Qh7 Ndf3 Rb8 a8B Rb5 Bf4 Be3+ Bc5 Bb7 Nh4 Bg2 Bg3 Bf1 Ne6 Qd4 Rb1 Qc4 Rc1 Nh6+ Ke5 Ng4+ Kf5 Rf8 g8Q Rd8 Ng7 Qd4 Qd1 e1Q Qe8+ Kc8 Qe5 Rd6 Qe2 Kd7 Ba3 Nc5 Rg2 Qed1 Qe1 Nb3 Rg1 Na1 c8B+ Kd8 Bcb7 Kd7 Ne6 Qg8 g7 Qh7+ Bg6 Qe2 g8B Qh2 Rg2 Qg1 Ng7 Nf2 Qd2 Nh3 Qd1 Nf4 Qe1 Qh8 B6f7 Qc4 Bh2 Qh7+ Rg6 Ng2 Bg3 Qe4+
K1N5/b2r1q1k/2N2R2/2PB4/1PP2R1n/1NbbqNBQ/3Nqq2/1rQ1N3 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Bc8 g5 Nc7 g7 Ne6 Ra4 Nf4 Ra1 Ng6 hxg6 Qb6 Ke2 Qc7 Ke1 Qd8 Ke2 d5 Ke3 h5 Kd4 a5 b4 h4 c4 e6 f6 h3 f7+ Ke7 b6 h2 b7 a4 b8N a3 Nd2 a2 Ndf3 Bb7 Ne1 Qe8 Ngf3 Rh7 Bf4 Nh6 g8Q Nf5+ Ke5 d4 g7 d3 g6 d2 Qh8 Ra6 Qc1 d1Q Bg2 Be4 Bg3 Bd3 Rf1 h1Q Rb1 Qh3 g8N+ Kd8 g7 a1B+ Rb2 Nh4 Nf6 Ke7 Ne4 Qe2 Kd4 e5+ Kd5 Ra4 Ned2 Kf6 g8N+ Kg6 Nc6 e4 Nge7+ Kh6 Rb3 e3 Nc8 Bd6 f8N Qf7+ Ne6 Bc3 Ra3 Ra7 Ra6 Bb8 Rb6 Ra1 Ra6 Qb7 Ned4 Rb1 N4b3 Ba7 Rb6 Kg6 Rf2 Rf7 Qh5+ Kg7 Qf5 Qh2 Qh3 Kh7 Rf1 Qe7 Bh1 Qe8 Kd6 Qhf2 Ra6 Rf4 Kc7 Rd4 Kb7 Rd7+ Ka8 Qf8 Ncd4 Qf7 Rf6 Qd1 Nc6 e2 Nh2 Qe3 Bd5 Qc2 R1f4 Qd1 Ng2 e1Q Nhf3 Q1f2 Nge1 Qde2
5B2/N1qPrnR1/3NP1B1/B1Q2n2/1BP3rQ/1Kn1qr2/3B4/1BRr1k1b w - - 0 1 legal: proof: f4 c5 a4 d5 g4 h5 gxh5 b5 axb5 e5 fxe5 d4 c3 c4 cxd4 c3 d5 c2 Na3 Bb4 Nb1 Bc3 bxc3 Be6 Nf3 Bg4 Ng1 Bc8 e4 Kd7 d4 a5 Kd2 g5 h4 f5 e6+ Kd6 h6 f4 e7 g4 e8B a4 h5 g3 h7 g2 e5+ Ke7 b6 a3 d6+ Ke6 b7 Kf5 c4 Ke4 Kc3 f3 d5 f2 d7 a2 e6 Qb6 d8B Nf6 d6 Na6 b8B Qc7 d7 Nb4 h6 Qf4 Ba5 Bb7 Ne2 Kf3 Qd5+ Qe4 Ng3 g1R Bd2 c1R+ Kb3 Nd3 Bg6 Rf8 h8B Ne5 h7 Rd1 Na3 Nf7 Nf5 Rg4 Bd6 Rae8 Bd3 Kg2 Qc5 f1N Bg7 Ng3 h8Q Nd5 Bb1 Nc3 Qh4 Qe3 Nb5 Re7 Na7 Be4 Rh2+ Kf1 Bh6 Bh1 Rg2 Rh8 Bf8 Rg8 Nd4 Nf5 Ndb5 Rg7 Bdc7 Rf4 Bb4 Rf3 Bca5 Rg8 Nd6 Rg7 Bc2 Rg8 Rc1 a1Q Bb1 Qa4+ Kb2 Qc6 Kb3 Rg7 Bh7 Rg8 Rg7 Qc7 Bg6 Rh8 Qg5 Rh4 Qf6 Re4 Qh4 Rg4
B2R3Q/1rP1BbK1/1Bp1q2b/NQ6/3B1R2/1r1P2P1/2nBkn2/NB1bn3 w - - 0 1 legal: proof: b4 b5 a4 f5 axb5 g5 e4 d5 exf5 d4 h4 d3 hxg5 c6 b6 Bh6 b5 Na6 b7 Qd5 b6 Qa5 cxd3 Bf8 d4 Nb8 d5 Qc3 Qc2 Qg3 Qd1 Qc7 bxc7 Bh6 Ne2 Bg7 Ng1 Bf8 Ke2 Kf7 Kd3 e5 Ke4 h5 f4 a5 f6 Kg6 f7 h4 d6 a4 f5+ Kg7 f6+ Kg6 d7 h3 d8B a3 g3 a2 Qe2 h2 Be7 Ra6 Nf3 Kh5 g6 Kg4 g7 Rh5 Qb5 Rg5 Na3 Be6 Ne1 Rg6 Nec2 Nd7 b8Q Nh6 g8B Rb6 Nc4 Rb7 Bh7 Rg5 Na5 Rh5 Rb1 a1N Rb4 Bb3 Bc5 Be7 f8B Bf7 Bg7 Rh4 Rg1 h1B+ Rg2 Rh2 Bb6 Rh5 Qh8 Nc5+ Ke3+ e4 Kd4 Rh4 Ke5 Kf3 Rd4 e3 Rd8 e2 Rf2+ Kg4 Be4 e1Q Rf5 Bf3 Rf4+ Kg5 Bh3 Bd1 Bf5 Qe2 Bc8 Qc4 Bef5 Kh5 Bh7 Ng4+ Kf5 Nf2 Ke5 Bd5 f7 Bg5 f8B Bf7 Be7 Ncd3+ Kf5 Ne1 Bgd4 Bh6 Kf6+ Bg5+ Kg7 Qe6 Rf3 Kg4 Rf4+ Kh3 Bg6 Kg2 Bh7 Ned3 Be4+ Kf1 Bg6 Ke2 Be4 Ra7 Bb7 Rg4 Ba8 Rb7 Bd5 Rh4 Ba2 Rh2 Bb1 Rg2 Qf5 Ne1 d3 Rh2 Qb5 Rh1 Ne3 Nac2 Bd2 Rh2 Nec4 Rh5 Nb3 Rh4 Nca5 Rg4 Na1 Rh4 Bb2 Rg4 Rf6 Rb4 Rf4 Rb3 B2d4 Bh6+
1N2N1k1/4n3/Q3q3/2p1qN1K/rNP2NN1/B1brnB1n/PbR2Q1P/R7 w - - 0 1 legal: proof: g4 h5 gxh5 a5 b4 e5 bxa5 f5 e4 b6 exf5 e4 a6 Bb7 axb7 e3 dxe3 Kf7 e4 Ke7 e5 Ke8 Ke2 Kf7 Kf3 d5 Kg4 c5 c4 g5 f4 b5 f6 b4 e6+ Ke8 f7+ Ke7 h6 b3 h7 b2 f5 d4 Ne2 d3 Bg2 d2 Bf3 Nc6 b8N Ne5+ Kh5 g4 Na3 b1Q Nd4 g3 Qa4 d1N Nac2 g2 Ba3 g1B Qa6 Ne3 Nb4 Bg7 f8N Qe1 Nfd7 Qc8 Nf6 Kf8 Ng4 Ne7 f6 Nd3 f7 Nf2 Nf5 Bb2 Rc1 Rg8 h8N Nh3 Rc2 Bf2 Rf1 Qc3 Ra1 Be1 Nd6 Kg7 Ng6 Rd8 Nf4 Qe5+ Nf5+ Kh7 f8Q Rd3 Qf6 Kg8 Qh4 Bec3 Qf2 N7d5 e7 Qce6 e8N Ne7 Qc8 Ra5 Qa6 Ra4
B1R1nqQr/RP4P1/3p4/R1N1bB1b/2RB1n2/2r1B1R1/n1NKPn2/5k2 w - - 0 1 legal: proof: f4 e5 fxe5 b5 h4 c5 d4 g5 hxg5 f6 exf6 b4 dxc5 b3 axb3 Qc7 b4 Qb6 b5 Qd8 b4 Kf7 g4 Ke6 c4 Ke5 f7 Ke4 b6 h5 c6 a5 c5 a4 b5 a3 c7 h4 g6 d6 g7 a2 g5 h3 c6 h2 b7 Qe8 g6 Rh6 b6 Ra7 Qb3 Nf6 g8R Qe5 Be3 Na6 b8R Ne8 Na3 Rh7 Nc2 Bd7 c8R Qb2 c7 Ba4 Nf3 Nb4 Ne5 Rh8 Nd3 Nd5 Ra8 Qg7 Kd2 Nf4 Rc1 Ra5 Ra7 a1N Bh3 Be7 f8B Rc5 Bd7 Qh6 Bg7 Rc3 Bgd4 Qf8 g7 Bb5 Rhg1 h1N Rg3 Nf2 Qf7 Bc4 Bc6+ Bd5 Ba8 Bf6 b7 Be5 Rh1 Be6 Rh5 Bg4 Rf5 Bh5 Qc4 Bf6 Rfa5 Be5 Qd5+ Kf5 Nc5 Nb3+ Ke1 Nc1 Kd2 Qf6 Rf8 Na2 Qg8 Qf7 Rf3 Kg4 Rh3 Qe7 Rg3+ Kh4 Rf5 Qf8 Ra4 Bf7 Rc4 Bg6 Rb8 Bf7 c8B Bh5 Bd7 Qf7 Rc8 Qf8 Rg1 Kh3 Rg3+ Kh2 Be6 Bf6 Rd5 Be5 Bf5 Kh1 Na4 Kh2 Rda5 Kh1 Nc5 Kh2 Rh3+ Kg2 Rg3+ Kf1
1NrB1k2/nB4r1/2R1BN1r/PbP2p2/P2Q2Q1/r4RnB/b2KBr2/7B w - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 e5 fxe5 a4 g4 a3 bxa3 Nf6 a4 Ng8 a5 Ra7 Kf2 Ra6 Ke1 Ra8 h4 f5 g5 Qf6 gxf6 g5 Rh2 g4 Rh3 Bh6 Rh1 Bg5 hxg5 Kf7 Nh3 Kf8 Ng1 Ke8 c4 h5 e4 b5 a4 d5 e6 g3 e5 h4 g6 h3 c6 d4 g7 h2 e7 d3 c5 g2 c7 b4 f7+ Kd7 e8B+ Ke7 f8Q+ Ke6 Nf3 g1R Bh5 b3 Nbd2 b2 Ra3 b1B Qf6+ Kd7 e6+ Kc6 e7+ Kd7 Ne4 Rh7 Bg5 Rh8 Nd4 Rh6 Nc6 Ba6 Kd2 Bb5 Bh3 Ba2 Be2 Ke8 Qd4 Nf6 g8B Nh5 c8B Ng3 Bb7 Rg2 Bh4 Rf2 Be6 Rh7 Re1 h1R Rc3 Rg7 Rg1 Na6 Nb8 Nb4 Bf6 Nc6 Rb3 Nh5 Rg6 Na7 Qg1 Rhh2 Qg4 Ng3 Rb1 Rf3 Rf1 Re3 Rf3 Rf2 Bec8 Kf7 e8B+ Kg8 Bd8 Kf8 Nf6 Re6 Kd1 d2 Bec6 Re3 Kc2 d1R Be6 Rh1 Kd2 Rhh2 Rf4 Ra3 Bh1 Rg8 Rf3 Rg7 Na6 Rc8 Nb8 Rh7 Rg7 Rh6 Rc7 Rh7 Rc6 Rg7 B3g2 Rh4 Bh3 Rh6
k2rK3/1n3n1R/2N1p3/3R1bP1/N2b1RB1/P4BB1/1PnB3B/2QbRr1n w - - 0 1 legal: proof: h4 f5 c4 g5 hxg5 c5 e4 b5 exf5 a6 cxb5 c4 bxa6 Qb6 d4 Qc5 dxc5 Bh6 Bf4 Bg7 Bc1 Bf8 Kd2 Kd8 Ke3 Kc7 Ke4 d5+ Ke5 h5 g4 c3 f4 e6 a7 Kb7 g6 c2 c6+ Kc7 g5 d4 f6 h4 f5 d3 g7 d2 a3 h3 f7 h2 f6 Rh7 Ne2 Rh6 Bh3 Rh7 Nd4 Kb6 c7 Kb7 Nc3 Rh5 Na4 Nh6 g8R Bg7 Kd6 Nd7 Ke7 Nb8 f8B Rh4 f7 Rg4 Ke8 Nc6 Bd6 Na5 f8B Rg2 Bg3 Nf7 Nc6 Rf2 Bg4 Bd4 Bfd6 Rf1 Rf8 Rb8 Qe1 d1B Bd2 c1N Bde5 Na2 a8B+ Ka6 Rb1 Bb7+ c8R Nb4 Rd8 Nc2 Qe3 Rf5 Re1 h1N Bh2 Rc8 Beg3 Rf1 Rh8 Rb8 Rh7 Rc8 Qc3 Rb8 Re4 Rc8 Rf4 Rb8 Ne7 Be4 Nc6 Nb7 Qc5 Bf5 Qc3 Bf3 Re1 Bd1 Qc5 Na1 Qc1 Nc2 Ne7 Na5 Bg2 Ka7 B2f3 Nb7 Nc6+ Ka8 Ke7 Rg1 Rd5 Rf1 Kd7 Rd8+ Ke7 Rd6 Ke8 Rd8+
3NN2r/3q1QP1/N1RQN1np/k1K2qqq/N4q2/P3N1n1/2bRP1B1/4B3 w - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 fxe5 a5 b4 f5 bxa5 g5 g4 f4 h3 Bh6 h4 Ra6 Na3 Rf6 Nb1 Rf5 gxf5 g4 Bh3 Kd7 Bf1 Bg5 hxg5 Ke8 Kf2 Kd7 d4 c5 g6 Kc7 a6 Kb6 a3 c4 g7 c3 d6 b4 a7 c2 a8N+ Ka5 d5 b3 d7 b2 f6 h6 e6 f3 Ke3 f2 Kd4 g3 f7 g2 f8Q Nc6+ Kc5 Ka6 d6 Qh4 d8N Nb4 d7 Qg3 e7 Qg6 e8N Qf7 Nc3 b1Q Qdd6+ Nc6 Ra2 Ka5 Nh3 g1Q Nf4 Qh2 Na4 Qhh5+ Nd5 Nge7 Nac7 Nf5 Nde6 Ne5 d8N Qd7 Bg2 f1Q Qf7 Ng3 Ne3 Qf4 Na6 Bb7 Rd1 Be4 Rd2 Qfg5 Bb2 c1Q+ Rc2 Qd2 Rc3 Qf1 Bc1 Qd3 Bd2 Qff4 Be1 Qb1 Rd2 Bc2 Bf2 Qf1 Be1 Q1f2 Kd5 Qff5 Rc6 Q2f4 Kc5 Ng6+
n3R2R/PPRQ4/1n1b1pK1/3q1NR1/2B1P1r1/N3Bq1q/4n1R1/q2k1NN1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 b4 c4 Nd7 cxd5 Nb8 b3 a5 Ra2 Ba6 Ra1 Bb5 axb5 a4 b6 a3 Nc3 Ra4 bxa4 Qd7 Nb1 Qd8 Kf2 Kd7 Kf3 c5 Kf4 g5+ Kf5 c4 h4 b3 e4 f6 d4 a2 h6 g4 h7 b2 e6+ Kd6 a5 c3 a6 c2 a7 g3 b7 g2 h5 Qe8 h6 Qa4 e7 Qb5 e8R Qc4 Rh5 Qb5 Bc4 Be7 Nd2 b1Q Nf1 Qb6 Rg5 Nd7 Be3 c1N Kg6 Q6b3 Qd3 Kc7 d6+ Kb6 d5+ Ka5 Qd1 Nb6 d7 Ka4 d8N Bf8 d6 Qd3 d7 Na8 Ne6 Ne2 d8N Bd6 Ng7 Qd5 Rc1 a1Q Nde6 Qa3 Nf5 Ne7+ Kf7 Rg8 h8R Rg6 h7 Nc8 Rhg8 Ncb6 h8R Qa1 Qd2 Ka3 Qd1 Kb2 Rg7 Qba3 Qa4 Qad3 Qd7 Qd1 Rc2+ Kb1 Rd2 Kc1 Rgh7 Rg8 Rhg7 Qc3 Kg6 Qdb3 Ra2+ Kd1 Ned4 Qd3 Nc2 Qbc3 Bf2 Qh3 Na3 Qcf3 Be3 Qh1 Nh3 g1Q Rc2 Qgg3 Ng1 Qhh3 Rb2 Qge5 Ra2 Qa1 Rb2 Nc3 Rbg2 Ne2 Qe6 Rf8 Rc7 Rf7 Qc8 Rh7 Qe6 Rh4 Qd7 Rg4
2Q2BR1/R1N4q/6BB/7N/B1P1N2K/NbNkq1Pb/Pbr1p3/1rq1q3 w - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Qc7 f7+ Kd8 f5 Qb6 bxa3 Kc7 a4 Kc6 a5 Qd8 Be2 g5 Qd3 Nf6 Bf1 Ne4 Qd1 Na6 Bg2 Nc7 Bf1 Nd5 Ne2 Ne3 Ng1 Ng3 f6 Nef5 gxf5 g4 Qd2 Nh5 Qd1 g3 Bd3 g2 Bf1 Ng3 hxg3 Ra6 Bd2 Ra7 Bc1 Ra8 Kf2 h5 c4 e5 a6 b5 a7 d5 Na3 d4 Rb1 d3 Bh6 e4 Ne2 h4 Nc3 d2 Qg4 d1B Bd3 Be7 f8N h3 f7 b4 f6 b3 Ne6 h2 f8N b2 f7 Ba6 Ng6 Bb3 f8B e3+ Kf3 g1Q Nc7 Bc8 Nf4 Bf6 Bg6 Qe8 Nh5 Rb8 a8B+ Rb7 Qf5 Qe1 Kg4 e2 Rd1 b1Q Rd7 Qe3 Rf1 Bd4 Kh4 Qbc1 Rg7 Be5 Rg8 h1Q+ Qh3 Rh7 Rf3 Rd7 Rf7 Rd2 Rh7 Qd5 Qe6+ Qd6 Qe8+ Bd7 Qc8 Rc2 Na6+ Qc7 Nd5 Be6 Qb8 Ba1 Nc3 Bf5 Qd8 Qg7 Qb8 Kd7 c6+ Ke6 c7 Ke5 c8N+ Kd4 Nd6 Kd3 Nde4 Ba4 Qc8 Rb1 Bc6 Bb3 Ba4 Qc7 Rf7 Bb2 Rfg7 Bh3 Re7 Qd6 Ra7 Qd7 Nc7 Qh7
k2B2QN/5RpP/2b3nB/1nNr1rpn/1BP2NBN/5q1b/2RK1P1B/8 w - - 0 1 illegal: Other
1RRb4/BR4N1/N1R2K1p/P2prRP1/3r2Q1/kPR1Q2n/1r1q2B1/bb6 w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 g5 h4 f5 exf5 b4 hxg5 Bh6 Nh3 Bg7 Ng1 Bf8 Bd2 a5 Be3 b3 axb3 a4 Bc1 a3 Rh6 a2 Rh4 Nc6 Rh1 Nd4 Qe2 Nb5 Qd1 Na3 bxa3 Ra4 Ba6 Ra5 Bf1 Ra8 Ke2 e5 Kd3 Ke7 Ke4 h6 g4 d6 c4 Ra7 f4 Qa5 g6 Qd2 f6+ Kd7 Kf5 e4 g7 e3 g5 d5 a4 e2 f7 e1B Nc3 Bb7 c6+ Kd6 c7 Kc5 c8R+ Kb4 c5 Qc2+ Ne4 Bh4 c6 Bg3 c7 Qb2 Nc5 Qe2 Na6+ Kc3 Rh3 Qf3 Be3 Kb2 Bg2 Qf2 Qg4 Ka3 Ne2 Ne7+ Kf6 Ra8 g8Q Nf5 Ba7 Ne7 f5 Ng6 Nf4 Qd2 Ne6 Nf4 Ng7 Bb4 f8R Ba5 Rc1 a1R Rc6 Rd1 Rb8 Bc8 Qe6 Bc3+ Qe5 Ba1 Rf7 Re8 Qc3 Re5 Qe3 Be6 c8R Be1 Rf3 Nh3 Rfb7 Bf7 Rg3 Bg6 Rf3 Rb1 Rg3 Rb2 a5 Bf2 Qee2 Bc5 Rc3 Bb6 Qe3 Bh7 Kf7 Re4 f6 Rd4 Ke6 Bd8 f7 Bg6 f8R Bb1 Rf5 Bc7 Bb6 Ra7 Kf6 Bd8+ Re7 Rd7 Ba7 Rd6+ Ke5 Rf6 Reb7 Rf8 Ke6 Re8+ Kf7 Re7+ Kf6 Re5+
1k2n2K/3P1BRn/3PB1q1/2RpR3/n3N3/2Rb1B2/1P1Qbp2/2rbBB1N w - - 0 1 illegal: Other
3Q3N/BN1Rp2n/NP2q1r1/3Q1nR1/8/k1NP2nb/NrPN1p2/q2B3K w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 d5 a4 g5 axb5 h5 e4 h4 exd5 h3 gxh3 g4 h4 Bh6 h5 Bg5 fxg5 Qb6 Ke2 Qd6 Ke1 Qd8 Kf2 Kd7 Kg2 f5 h4 a5 d6 f4 h6 a4 g6 g3 h5 a3 g7 a2 h7 Na6 c6+ Ke6 c7 Kd5 d7 Kc5 h6 Kb4 Be2 Ra7 Nc3 Bb7+ Nf3 Bc6 c8N Ba8 Rh5 Rc7 Na7 Rc4 Kh1 Nc5 Rg5 Qb8 d8N Qe5 Nb7 Nf6 g8N Nd5 Nf6 Ne6 Nfe4 Nf8 Nec5 Rg8 h8N Rg6 h7 Ne3 b6 Qd6 Nab5 Qe6 d3 Re4 Nd2 f3 Qg1 f2 Bd1 Re5 Qg2 Nf5 Qd5 Re1+ Nf1 Re4 Bf4 Rd4 Nd2 g2+ Kh2 g1N Kh1 Ne2 Bb8 Rg4 Ba7 Rd4 N3e4 Rc4 Nbc3 Ka3 Na6 Rd4 Rb1 a1Q Rb5 Rb4 Na2 Rb1 Nec3 Rb2 Rc5 Nfd4 Rc7 Nf5 Nbc5 Bb7 Rd7 Bc8 Nb7 Nfd4 Nf7 Nf5 h8Q Nh7 Qd8 Neg3+ Kh2 Nd4 Rc7 Qe5 Nh8 Bh3 Rd7 Qf6 Ne2 Ndf5 Nec3 Bg4 Kg2 Qc6 Kh2 Qe6 Kg2 Bh3+ Kh2 Nf1+ Kh1 N1g3+
4R2b/1qb1P2r/p1N1pr2/1NPkB1Bp/nP1n2BR/7R/KB6/2B1QR2 w - - 0 1 illegal: No proof kernel
2B3BN/R2rK1Nb/1B2p1qn/Q1P3R1/BpR2B2/1p5P/4RP2/3knqr1 w - - 0 1 illegal: Other
2Rq1N1q/PBbp2Q1/2Br4/1p5k/2p1B1qB/p6B/QP1r1P1K/1R3NB1 w - - 0 1 illegal: No proof kernel
1b3b2/3K2q1/BBR5/nr2P1Nq/1B3nP1/B2RR1BQ/3Pbq2/r1n1kNR1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 c5 b4 a5 g4 h5 e4 c4 b6 a4 b7 a3 e6 Kd6 g6 a2 e7 c3 e8R h4 g7 h3 b5 Kc5 Ke5 Kb4 b6 h2 d6 f4 d7 c2 Ke6 f3 Ne2 f2 Rg1 h1Q Nbc3 Qhh4 Ba3+ Kc4 Rc1 a1B Ng3+ Kd4 Ba6 f1Q Qf3 Qf2 Nf1 Rh5 Qh3 Nc6 b8B Nf6 g8R Qc7 b7 Rb5 Ba7+ Kc4 b8B Nd5 B7c5 Na5 Bcb4 Qh5 Rg7 Qb7 Bg3 Kd3 Rge7 Qba7 Rd8 Nf4+ Kd6 Qad4+ Kc7 Qg7 Re6 Qgh8 e5 Qg7 Re1 c1N Ne4 Bd4 Ng5 Ba7 Re3+ Kc2 Rd6 Kd1 Rdd3 Bb7 Rc8 Bf3 Kd8 Bb8 Rc6 Ra7 Kc8 Be2 d8B Ke1 Bb6 Rd7 Bb2 Rd4 B2a3 Rc4 Kd8 Rc2 Kc8 Ra2 Kd8 Ra1 Kc8 Qgh6 Kd7 Qg7+
R1N1K2q/r3R2P/2BRB3/B1q1kPB1/nrn1N3/rq2Rb2/P4B2/n1Q1b3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 b5 d4 c5 h4 b4 h6 g6 d6 e6 a6 b3 d7 c4 h5 b2 d5 c3 a7 c2 d6 Qb6 d8R Nc6 h7 Qb5 d7 Qa6 h6 Be7 Rh3 Bb7 Ne2 Ne5 Nec3 Qb5 Bc4 Qb3 Nd2 b1R Re3 Bf3 Na4 Bb4 Nb6 Ne7 Nc8 Re8 Bd5 Nc4 h8R Ba5 h7 g5+ Kg3 g4 Kh4 e5 Kh5 e4 Be6 Ke5 f6 Rf8 f7 Nd5 Kg6 g3 Qe1 Re8 f8B g2 Kf7 g1Q Bc5 Re7+ Kf8 Rg7 Ke8 Nc3 Rf8 Qh2 Rf7 Qf4 Re7 Na4 Qh1 Qf6 Qf1 Rb8 a8B Rb4 Bc6 Rg3 Qe1 Rb7 Qh1 Ra7 Bb6 Bc3 Ba5 Bb4 Ba3 Bc3 Bc5 c1Q Bcb6 Qca3 Qc1 Rb2 Rb1 Qc5 Ra1 Qc2 Rb1 Rb4 Rb3 Qd1 Rd3 e3 Ne4 e2 Rd6 e1N Ra3 Bd2 Re3 Ra8 Ba7 Nc2 B7b6 Na1 Ba7 Be2 f3 Be1 B7b6 Qdd5 f4+ Kd4 f5 Bf3 Na7 Qg7 Rc8 Ke5 d8B Rh3 Rb8 Qd1 Nc8 Ra7 Ra8 Qf6 Rf7 Qg7 Bg5 Qb3 Re7 Qh8+ Kf7 Qa3 Rc3 Bg2 Rb3 Qb5 Bf2 Qc5 Rc3 Rd3 Rb3 Bf3 Rc3 Rd1 Re3 Rd3 Rb7 Qb2 Rc7 Ra3 Re7 Qg7+ Ke8 Qb3 Rd2 Qf6 Rd6 Qh8+
2K4k/B1N1b1qr/RBRQ3n/R1P2Br1/3n2B1/PBn3nn/bPR1N3/3r4 w - - 0 1 illegal: No proof kernel
1k3b2/rP5n/2R2N1K/2bP1rr1/bB1Nq2n/n1PQ4/B7/NNB1NbBR w - - 0 1 illegal: No proof kernel
R1N1Rb1n/bP1QBN1K/2N2N1r/1B1P1Q2/qPN1Nb1r/1b3r2/1n6/3nk3 w - - 0 1 illegal: No possible last move
3nNRrq/Pk3NRN/2b1R3/2R3K1/3R4/1Bn1nrP1/2rbNB1P/3b1Qb1 w - - 0 1 illegal: No proof kernel
N3R2b/QN3rkN/N1B1r3/1bbq2q1/6Rn/3b1P2/1PNP3N/1bBKnQ2 w - - 0 1 illegal: No proof kernel
1b1B4/1b1Rqrn1/2q1r1nK/8/1RBQn1NP/bN1R1P2/PR1QRR2/5n1k w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 d4+ Ke4 h4 e5+ f6 b5 d6 c4 a6 c3 d5 c2 a7 b4 d7 b3 d6 b2 h6 Rh7 Nf3 Na6 Kg6 Ne7+ Kg5 Ng6 Bc4 Nc7 Bg8 Qe7 d8Q Ne8 d7 Bb7 Bc4 Rc8 a8R Rc6 Nh2 Re6 Bd2 c1Q Ng4 Qc2 Qc1 Kf3 Ra3+ Kg2 Rd3 e4 Ba5 e3 Qd2 e2 Rh2+ Kg1 f3 e1N Rf2 Kh1 Qb6 Ng2 d8R Ne3 Qd4 Nf1 Rd7 Qa4 Bd8 Qc6 Kh5 Nc7 f7 Ne8 Na3 b1N Nb5 Nc3 Rb1 Ne4 Rb4 Nh8 Rb2 g5 Rb4 Rg7 h7 Ng6 h8R Rh7+ Nh6 g4 Rg8 Bg7 f8R g3 Rb2 g2 Rf4 g1B Rg4 N8d6 Re8 Bf8 Rf4 Rg7 Ng4 Bh2 Kh6 Bg3 Qc5 Bh2 Nd4 Bg3 Nb3 Nf5+ Kh5 Rf7 Qd4 Ng7+ Kh6 Ng5 Re4 Bb8 Rf4 Qf6 Re4 Ba3 Ree2 Ne4 Ree7 Ba8 Rb7 Qe5 Rb4 Bb7 Rc7 Qf6 Rd7 Qe7
3R2Nq/nRB5/1N2Prk1/2QK1nP1/1N4bB/4NnbN/q1P1B1r1/1B2nr2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 f5 Kf3 Kf7 g4 h5 b4 a5 e4 d5 c6 h4 g6+ Kg7 e6 a4 e5 d4 e7 d3 e8B f4 Ke4 f3 c7 h3 b6 h2 b7 f2 b5 a3 b6 a2 Be2 f1Q Nc3 d2 Nd5 Nh6 Ne3 Nf5 Rb1 a1N Nh3 Ra5 Bf7 Rh5 Ba2 Nc6 b8N Nb3 b7 Nbd4 Na6 Nf3 b8B Bd6 Nb4 Ra6 Kd5 Na7 g5 Qf2 Qg1 d1N Bd2 Nb2 Be1 Qh8 Rd1 Rc6 Bb1 Nd3 Rd2 Qg2 Bh4 Nde1 Rd1 Bd7 c8N Bc7 Qf2 Rf6 Nb6 Bc8 Rg1 h1R Rd3 Bd6 Bc7 Qf1 Rg4 Rg1 Rb3 Rg2 Rd4 Rh6 Bd1 Qa6 Be2 Qa2 e6 Ba6 Rd1 Bg3 Rd4 Kg8 g7 Kh7 g8N Kg6 Kc5 Rh7 Rd8 Rhf7 Kd5 Rf8 Ng4 R8f7 Qc5 Rf8 Bf1 Be2 Ne3 Bd1 Bb5 Ne5 Bf1 Bg4 Be2 N5f3 Bc4 Ne5 Na8 R6f7 Nd3 Nh6 Rb7 Rf1 Nb6 Nf5 Nb4 N5f3 Rd7 Rf6 Rd8 Qa3 Be2 Qa2+
Q2b3k/1R1Kq3/4P1bB/1PNPq3/3R1n2/1n3RqN/N3RNBn/2qr2rN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Kf3 g5 Ke4 a5 b4 c4 d4 c3 h4 g4 e6 f5+ Ke5 a4 e4 f4 d6 f3 d7+ Ke7 b6 c2 d5 g3 h6 a3 b7 a2 h5 g2 b5 f2 h7 Ra4 h6 Ra7 Rh4 Qb6 d8N Na6 b8R Bb7 Ne2 g1N Ng3 Qc5 Bg2 f1Q Nh1 Nb4 Nc3 Ba8 Rb7+ Ke8 e7 Ne2 Ke6 Nf6 e5 Na6 Rd4 Rg8 h8N Qf4 h7 Ng4 Ng6 Qg3 h8N Nh2 Bh6 c1Q Nf4 Rg5 Rb1 a1Q Qa4 Rg8 Nh3 Nf4+ Kf5 Bg7 Na2 Bf6 Ne6 Rg4 Ng6 Kf7 e8R+ Qe7 N3f2 Nc5 Rb2 Nb3 Re2 Qac3 Rd8 Qc3e3 Rd6 Kg8 Nc5 Bh4 Rf6 Qec3 Nf8 Kh8 Nfe6 Ra6 Ng5 Re6 Rd7 Bc6 Rb7 Be8 Ngh3 Ra6 e6 Bg6+ Ke5 Q3e1 Qa3 Ra4 Rf7 Rc4 Rf5 Rc3 Rf6 Rd3 Qa6 Rd1 Qa8+ Qe8 Rff7 Bd8 Kd6 Qe7+ Kc6 Nd3 Rf3 Nf4 Rc2 Qe5 Re2 Qgh4 Bf1 Rg1 Bg2 Q7f6 Kd7 Qg3 Rfd3 Qf8 Rf3 Qe7+
2b5/b1BqN2B/2PN2NQ/Pq1N2n1/qB4R1/5q2/1rPKrnR1/Nk3Bn1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 a4 Kf7 h4 Kf6 f4 e5 h6 g5 h7 b5 a6 d5 a7 e4 a5 g4 h5 b4 h6 e3 Nh3 b3 Nd2 g3 Qh5 b2 Ra4 b1Q Nb3 e2 Rg1 g2 Kd2 d4 Na1 d3 Ba3 Na6 Bb4 Rb8 a8B Qd6 Be4 Qd7 c6 Nc7 Bd6 Ne6 Bc7 Ng5 Rd4 Ke7 f6+ Ke6 f7 Bc5 f8B Ba7 Bb4 Nf6 Bg6 Rg8 h8N Re8 h7 Ng4 Qh6 Nf2 Nf7 Qa2 h8N Qa4 Re4+ Kd5 f5 Re5 f6 Re7 Bbd6 Rb2 Rg4 Re8 Be4+ Kc4 Nf4 Re7 Nd5 Re6 Rh1 g1N Rh2 Re8 Rhg2 Re7 Bc5 Re8 Ke3 d2 Ng6 d1Q Nge7 Qb5 Nb4 Kc3 Bh7 Q1d5 Nd6 Qb3 f7 Q3a4 f8N e1Q+ Be2 Qd1 Bf1 Rb1 Nd5+ Kb2 Ng6 Qf3+ Kd2 Ka2 Bb8 Rb2 Bc7 Kb1 Ba3 Bc5 Bb4 Ba7 Ng8 Re5 N8e7 Re2+
bbB5/q1rPQ1N1/P4K2/R3nbB1/B6N/r1q4B/qkB1q1NP/1NR1n3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kf3 g5 Ke4 c5 d4 b5 a4 f6 a6 b4 d6+ Ke6 a5 g4 a7 c4 h6 c3 h7 g3 d7 c2 Nh3 g2 Qe1 g1Q Bg5 c1Q a6 b3 e3 b2 Ra5 f5+ Kf4 Qd1 e4 Bd6 Bg2 Qf6 d8N+ Ke7 d5 Nh6 Ne6 Nd7 Ng7 Nf7 Bf1 Nc5 Bd3 Rb8 a8B Rb7 Bc2 Rc7 Bb7 Qe2 Qb4 Re8 h8N Qd4 Rc1 Nd3+ Kg3 f4+ Kh4 f3 e6 f2 Nf4 f1B e5 Qc3 Ng2 Ne1 Qe4 Bd7 Bc8 Bc6 Qe3 Ba8 Qa7 Qc5 Qb7 Qa7 Ng6+ Kd8 Qb4 Ree7 Qe4 Rc3 Qb4 Bb8 d6 Rec7 Qc5 Ra3 Qb4 Qee3 Kh5 Qc3 N6h4 Qe7 Kg6 Bc4 Bh6 Qe8 Kf6 Bd3 Bg5 Bf5 Nh5 Qb5 e7+ Ke8 Qc5 Qe2 Qe3 Bh7 Bh3 Bf5 Ng7+ Kd7 e8B+ Kc8 Bc6 Kd8 Bb7 Kd7 Bc8+ Kc6 Ra4 Kb5 Ra5+ Kb4 Qe4+ Qcc4 e6 Ne5 e7 Qcd4 Qe3 Qc3 e8B Kc4 Bea4 Kb4 Nd2 b1Q d7 Qa2 Nb1 Qcd3 Nd2 Kc3 Nb1+ Kb2 Qc5 Qd4 Qe7 Qc3
N1b1rR2/q1Pb4/br1kNKNn/4q1nR/3BB3/N1b5/QPPN2N1/1n2Q3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 e5 Ke3 Ke7 Ke4 a5 f4 h5 g4 h4 g6 d6 g7 h3 f6+ Kd7 Kf5 a4 g5 a3 g6 d5 b6 e4 f7 e3 b7 e2 Qe1 a2 Nf3 d4 Na3 d3 Nd2 h2 Bg2 Rh6 Be4 Ra7 c6+ Ke7+ Kg5 Qd4 c7 Qc5+ f5 Na6 b8N Kd6 Nd7 Qe5 Nb6 Nc5 Na8 Na4 Rf1 h1B Rf2 Qh2 f6 Qe5+ Rf5 Be7 f8N Nc3 Ne6 Nb1 Nf4 Bf3 Ng2 Bg4 Nb6 Rh8 Na8 Nh6 g8N Rb7 g7 Rb6 Kg6 Ba6 f7 Bf6 Ne7 Re8 Rh5 Bd7 f8N Bdc8 g8Q Bh8 Qh4 e1N Ne6 Nf3 Qe1 Bf6 Nb3 Ng5 Be3 d2 Bd4 d1B Nd2 Bde2 Qf7 Beb5 Qg8 Qd5 Qf7 Be5 Qg8 Bbd7 Qf7 Bh2 Kf6 Qc5 Ng6 Bf4 Nf1 Bd2 Qg8 Ba5 Nd2 Bc3 Qf2 Rb3 Nd8 Re6+ Kg7 Re8 Qc4 Qf5 Ne6 Bab7 Qe3 Rb6 Qb3 Qd5 Nac4+ Kc6 Qe2 Na3 Rf1 a1Q Rf8 Nb1 Qe1 Qa7 Na3 Ba6 Kf6 Kd6 Qa2 Qe5+
4Qrn1/qnP1nRBN/1k4B1/N1r3q1/1b2NNb1/1b1P2n1/1KN2P2/2N1QR2 w - - 0 1 illegal: No proof kernel
4B3/rPrqQNB1/1B1b2Q1/q2k3B/5nb1/P2n1P2/N1R1b1q1/BR2b1BK w - - 0 1 illegal: No proof kernel
N2R1rB1/q3NP1P/2Qr1b2/2nN1R2/N1b2B1k/P4p1N/3r1RKn/Rnb5 w - - 0 1 illegal: No possible last move
1r1b4/nQ5r/bqNn2b1/3kPPRN/2R5/K1RBBNqP/3p4/rR1R1N2 w - - 0 1 illegal: No possible last move, all moves rejected
BR1rB3/1RN1q2Q/2R1n3/P3r1NB/bB1q2n1/R7/P1K1b1pP/R2nb2k w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 d4 Ke7 Kd2 b5 e4 f5 e6 Kf6 e7 Kg5 e8B Kf4 d6 g5 d5 c5 d7 c4 e5 g4 h6 b4 d6 g3 h7 b3 e6 b2 e7 Nf6 Bg2 Na6 Be4 Ng4 Qa4 Nc7 Bd5 Ne6 Qa3 Ba6 Qd3 Bb5 Na3 b1Q Qc2 Qb2 Nf3 Qd4+ Qd3 g2 Bb2 c3+ Kc2 Bg7 Bh5 Re8 h8R Rb8 Kb3 c2 Bc3 c1N+ Kc2 Ne2 Bb4 Nc3 Ba8 Nd1 Rh7 Bf6 Rf7 Bh4 Ng5 Be1 Qh3 Be2 Nb5 Rc8+ Nc7 Bb5 Nf3 Ke3 Ng5+ Kf2 Qd3 f4 Qh7 f3 Rf6 Rf8 e8B Qe7 d8R Rb8 Rh6 Rf5 d7 Re5 Rc8 Be2 d8R Bb5 Rd5 Be2 Rcd8 Rc8 R8d7 Rd8 R5d6 Bb5 Rc6 Ba6 Bc3 Bd2 Nb5 Nb2 Rhb1 Nd1 Bhg6 Kg1 Rh3 f2 Bh5 f1B Ra7 Be2 Nc7 Bac4 Rb8 Bb5 Bb4 Be1 Rab7 Kh1 Ra3 Ba4+
Nnr4n/3b2R1/Bq4q1/PNNn4/3BK1p1/2R5/3PPRNr/b2RQqNk w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 c5 a4 b5 h4 g5 a6 f5 e6+ Kd6 h6 Ke5 a7 c4 h5 b4 d6 g4 a5 b3 h7 c3 d7 c2 h6 b2 e7 Ba6 e8R+ Ne7 Qe1 Rg8 h8N Bb7 h7 Bc6 Rh3 Bg7 Rf8 Ng6 Nc3 b1N Nb5 Nc3 Bb2 c1Q Bg2 Qc2 Rd1 Qf6 d8N Bd7 Nb7 Qb6+ Nc5 f4+ Kf2 f3 Ke3 f2 Bb7 f1Q Ba6 Qb1 Rf2 Rc8 Rhf3 Qc2 Rf7 Bf6 Rg7 Qb1 Nf3+ Kf5 Ng1+ Kg5 Ba1 Kh4 Bb2 Kg3 Ba1 Ne5 Ng6 Nf7 Nf4 Qg6 Ng2 Kh2 Bb2 Kh1 h8R+ Bh4 Rf8 Nh8 R8f3 Nd5+ Kd4 Bg3 Rc3 Bh2 Rf5 Be5+ Ke4 Nf7 Ba1 Rh8 Bb2 Rh2 Ba1 Nh8 Bb2 Nc6 Ba1 Rc8 a8N Qf6 Rf2 Nb8 Rh3 Qfc6 Bd4 Bf6 Be3 Bc3 Bd4 Ba1 Rc3 Qg6+
2B1K2N/1r1BR1Bq/BqQ2npb/1b3Br1/P2bQ2q/2n1P3/P1N2k2/4RB2 w - - 0 1 illegal: No proof kernel
1Brk2N1/4q2b/R1r1QPB1/nKBpB3/3Q4/bn3B2/P1nN3P/q2qR1B1 w - - 0 1 illegal: No proof kernel
B3qrN1/1R1q1bB1/n2bpR2/8/2Qr3n/PQP2P1k/K2Bqn2/1BBN2B1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb2 g5 h4 b5 a6 d5 a3 d4 c6 b4 h6 g4 h5 g3 f3 d3 c7 e6 h7 d2 a7 Kg5 c3 g2 f6 b3 h6 Bd7 c8Q Bc6 f7 Qd3 Nh3+ Kh4 Nf2+ Kg3 Qc7+ Qd6 Bd3 Be7 f8B Bb5 Qc4 g1Q Rh4 Qa6 Rf4 Qa4 Rf6 Na6 Qc2 d1Q Nd2 Qge1 Rb1 Rd8 a8B Be8 Nde4+ Kh4 Ka1 b2+ Ka2 Bf7 Q2b3 Rd4 Bd2 Qde2 Nd1 Qe8 Bc1 Bb4 Bd6 Ne7 Bdf4 Qg1 Bfd2 Rf8 h8B Qg7 h7 Bd6 Bc2 Kh3 Bd3 Qg4 Bg7 Ng6 h8B Qh4 Bgh6 Qhf2 B8g7 Nh4 Bhe3 Qg1 Bf2 Qd7 Bfe3 Qg6 Bg1 Qh5 Rf4 Qhb5 Nf6 Qb8 Ng8 Qbe8 Ra1 b1N Rf6 Qf1 Be1 Nd2 Rb1 Ne4 Bed2 Qg2 Rb2 Nf2 Bb1 Rf4 Qba4 Qf1 Rb7 Qe2 Qab3 Rd4
B1rk1q1B/q2B3N/2RPbN2/1pNK4/4PPR1/Q1q3bB/1nbNr2n/5N2 w - - 0 1 illegal: No proof kernel
1Qr3R1/4BPP1/3b1nr1/BB1K2r1/3pN1qn/1kq2bN1/bP3B2/Q1BR1B2 w - - 0 1 illegal: No possible last move
NQRr1q2/B3PB1N/1r3KR1/2n1P1B1/b1N3Pp/3r1Nbk/1nB1b3/1qB5 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 c4 d4 a4 g4 c3 b4 a3 d6 h4 b6 a2 e6+ Kc6 b5+ Kb7 d7 c2 d5 f6 e7 Bg7 g6 Qc7 d6 Nc6 Na3 Ra6 Bd3 Na5 Nf3 Qd8 Nc4 Qf8 Rb1 Bh6 g7 a1R Qe1 Bd2 Qg3 Bf4 Re1 Kb8 b7 Rb6 Kg6 f5 d8B Nf6 g8B Be6 Bf7 Nd7 Rf1 Nc5 Kf6 Bd7 Rb3 Be8 Rc3 Ra3 Rd1 Ka7 b8B+ Kb7 Ba7 Kc8 Rf1 Kd7 Qh2 Bg3 Rf2 Ra6 b6 f4 b7 Rb6 Rd2 Na4 Re2 Nb3 Rd2 Nbc5 b8N+ Kc8 Rd1 Nb2 Na6 Ba4 Nc7 Kd7 Na8 Rab3 Bd2 c1Q Bc2 Qb1 Bc1 Rg8 Rd5 Rh8 Rg5 Ra3 Rg6 Rab3 Ng5 f3 Nh7 f2 Nd2 f1B Nf3 Na6 Rc4 Rd3 Rc8 Be1 Qg3 Be2 Qe5 Bg3 Qb5+ Rc6 Qb8 Nc5 e5 Ra6 Ba5 Rb6 Bad2 Rg8 Bg5 Rh8 Nc7 Kc6 d7 Rg8 Ne6+ Kd5 d8N Ke4 Nb7 Qh6 Na5 Rd8 Nc4 Qf8 Nd4 Rb4 Nc7 Rb6+ Nc6 Kf3 Na8 Rbb3 Nd4+ Kg2 Nf3 Kh3 Bh6 Rb4 Bhg5 Rb6+
1k6/RN1PB1N1/2q1br1p/1B3rQB/N1NR1b2/2P3nP/1B2nrB1/1K1q2q1 w - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 exd5 c3 bxc3 Bh6 c4 Bg7 c5 Bf8 g4 Kd7 d4 Kc7 Kd2 e5 d6+ Kb7 g6 a5 d5 f5 c3 a4 Kc2 a3 h3 h6 c6+ Ka7 g5 f4 c7 f3 b6+ Kb7 g7 a2 g6 e4 d7 f2 d6 e3 Na3 e2 Qd2 e1Q Nf3 Qde7 Nh4 Qd8 Nf5 Qde7 Bg2+ Nc6 d8N+ Ka6 b7 Ka7 b8B+ Kb6 Qg5 f1R Nc4+ Ka6 Bb2 Qd7 Nb7 Nf6 g8B Ne4 g7 Ng3 Bf7 Qee8 g8B Rf2+ Kc1 Nd4 Rd1 Nde2+ Kc2 Qe3 Ng7 Qc6 Rd4 Be6 d7 Bd6 c8N Bf4 Bh5 Qef3 Bgf7 Rf8 Bd6 Ra7 Bg8 Rf6 N8b6 Ra8 Bgf7 Ka7 Na4 Rf8 Be7 Kb8 Bfg6 Qfd5 Bd3 Qdc5 Nca5 Rf5 Bb5 R8f6 Nc4 Q5d6 Rb1 a1Q Re1 Qaa3 Ra1 Qac5 Kb1 Qce5 Nab6 Qe3 Ra7 Qc1+ Ka2 Qg1 Na4 Bc1 Kb1 Qdd5 Rh4 Qdd1 Rd4 Bf4+
qn1R1BN1/N1P5/Bk3Nr1/qn1B1p2/6r1/N2bN1rQ/R1PB1b1P/1K5q w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 b4 f5 e4 d5 c6 a5 c7 Kd7 e6+ Kd6 h6 d4 b6 Kc6 h7 a4 e7 d3 e8B+ Kb7 e5 a3 b5 a2 e6 g4 e7 g3 Qg4 g2 Ne2 g1Q Bf7 Qd7 e8N Na6 Ng3 Bd6 Nf6 Qc5 Bd5+ Qdc6 Qh3 Be7 Na3 Nh6 Ng8 Qb4+ Kd1 Qa5 Bd2 Rb8 Kc1 Bh4 Be2 Be6 Rd1 Nf7 Nf1 Bf2 Ne3 Nd6 Bf1 Ra8 Kb2 Nb8 Kc1 Kc8 b7+ Kd7 b6 Ra6 Be2 Nb5 Kb2 Kd6 Bf1 Kc5 Be2 Nd7 b8N Qa8 b7 Kb6 Nc6 Nb8 Na7 Bc8 Bb4 d2 Bf8 Bd7 Bd3 Be8 Be2 Bh5 Bd3 Be2 B3c4 Nc6 b8N Bd3 Nd7+ Kb7 Rg1 d1Q Ndf6 Kb6 Rg7 Qf1 Rd7 Nb8 Rd8 Qg2 Ne7 Rg8 h8B Rg6 Neg8 Rg3 Bhg7 Qf1 Bb4 Rg4 Bgf8 Qh1 Bd2 Rg3 Rg1 a1R Rb1 Qe4 Kc1 Ra2 Ra1 Rb2 Ra2 Rb4 Nd1 Qf3 Ne3 Ra4 Kb1 Rb4+ Bb3 Rbg4 Bbc4 Qh1+ Be1 Nd6 Ne8 Kc5 Bb5 Rc6 Bbc4 Kb6 Ba6 Bg1 Bc3 Nb5 Bd2 Rcg6 Nef6 Bf2+
1Bn4n/b1p2K2/3NR1P1/N2Q4/3r1RQN/NNk3bb/B1Pq1PN1/1rrq4 w - - 0 1 illegal: No possible last move
1Br3N1/BP6/1P3NK1/b1q1RNp1/N2B3b/qBrk2P1/b1nn1rRN/7Q w - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 f5 exf5 b4 h5 b3 axb3 Nd7 b4 Nb8 b5 Qd7 Na3 Qd6 Nb1 Qg6 hxg6 Kd8 Nc3 Kd7 Nb1 Ke8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 b4+ Kb6 f4 e5 d4 h5 d6 a5 f6 c5 d5 c4 f7 c3 d7 c2 Kf5 h4 g7 a4 d6 h3 Bb2 c1Q Rh2 a3 Bd4+ Qc5 Nc3 e4+ Kg6 a2 d8B+ Ka7 d7 e3 b6+ Kb7 f5 Kc6 b7 e2 f6 e1B b5+ Kd6 Bb6 Bd2 d8B Be1 Nf3 Bh4 g3 Be6 Rg2 h2 Na4 Kd5 Ba7 Ke4 b6 h1R Bc7 Nc6 Bcb8 Rh2 Bc4 Nb4 Qh1 Nc2 Bb3 Kd3 Re1 a1Q Re5 Be7 f8N Qaa3 f7 Nf6 g8N Ne4 Nh7 Nd2 f8N Bf6 Rg1 Rf2 Rg2 Be7 Nh2 Bd6 Bc7 Rc8 Nhf6 Rh7 Bcb8 Rhc7 Rf5 Bc4 Ne6 Be5 Ng7 Be6 Bb2 Bc3 Re5 Ba5 Nf5 Bd5 Bd4 Bc4 Nc3 Rc6 Ba4 Ba2 Bb3 Qf8 Na4 Rc3 Nfh6 Qfd6 Nf5 Qdc5
2N4B/p1K2PB1/Bnr1q2n/1Brb3k/1N1q4/RPR1P2q/RRR2Q2/3n2b1 w - - 0 1 illegal: No possible last move
R2B2B1/5bK1/1bR1n1b1/1Q1b1r2/1pr1n2N/2PRP2B/PR1b3k/R1BN3q w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Kf3 Ke6 Kf4 g5+ Kg4 d5 h4 b5 c6 d4 a6 b4 a7 d3 c7 d2 h6 f5+ Kh5 f4 Kg6 f3 h7 f2 h5 g4 h6 g3 Qe1 d1B Nf3 g2 Nh4 g1B Rh3 Nf6 Rd3 Nc6 Nc3 Bb7 c8R Nd4 Rc6+ Bd6 Kg7 Ne4 Qd2 Rf8 h8B Rc8 a8R Rf5 Bh3 f1B h7 Qe8 Qe3 Qh5 Qg5 Qf3 Qh5 Qh1 Qg5 Bf2 e3 Be1 Qh5 Bd2 Qg5 Bh5 Nd1 Be8 c3 Bg6 Qh5 Kd5 e6 Bc5 e7 Bb6 e8B Be2 Qg5 Beh5 Bf7+ Ke5 Bg8 Bf7 Ra3 Bhg6 Rb3 Rc7 Rb2 Ba8 Rd6 Rc4 Rc6 Bb7 Kh6+ Kd5 Bf6 Ba8 Bd8 Ke5 h8R Ne6 Rc7 Bd5 Rc5 Nf6 Rc6 Ke4 Ng2 Kf3 Qh5+ Kg3 Nh4 Nc5 Kg7 Kh2 Qg5 Rff4 Qe5 Nfe4 Qb8 Ba7 Qb5 Bb6 Rc8 Rf2 Ra8 Rf5 Rh6 Bh7 Rd6 Bhg6 Rc6 Ne6+
2q2n2/4R1Bb/Bb1BNN1B/PPQ1Kr2/6pr/2R1P1R1/rk3r2/2R1nR1r w - - 0 1 illegal: No proof kernel
n4B2/Nq2Rbb1/1B2n1pP/2N4B/3NBn1Q/3KNP2/PrrRn2N/1nk5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 h4 Kd6 d4 e5 h6 c5 h5 b5 a6 b4 f6 g6 h7 b3 h6 c4 a7 b2 f7 c3 Na3 b1N Nc4+ Kc7 d6+ Kc6 d5+ Kc5 d7 Kb4 d6 c2 Nf3 Kc3 Nd4 e4 Qe1+ Nd2 Rh2 Qc7 d8N e3 d7 Ba6 N8e6 Qb7 d8N Nc6 Nc5 Bg7 f8B Rb8 a8B Nf6 f3 Bb5 Bh3 Ne8 Bg4 Nc7 Qh4 Nb1 Bh5 Ba4 Rf2 Bb3 Rg2 Rg8 h8N Rc8 Nhf7 Rh8 N8e6 Nd8 Nc6 Rb8 Ned4 Nde6 Ba3 Rg8 Nfe5 c1N+ Ke1 e2 Na7 Rh8 Ng4 Rg8 Kf2 e1N Ke3 Ned3 Rd2 Ndf4 Nh2 Nce2 Bc1 Qa6 Bd5 Qb7 Ke4 Na8 Ne3 Ba4 Ba3 Be8 Bc1 Bf7 Bb2+ Kb4 Bc3+ Ka3 Ba5 Rc8 Bb6 Rc7 Nec2+ Kb2 Ne3+ Kc1 Bc6 Ng2 Kd3 Rh8 Be4 Rc8 Nd7 Rc2 Nc5 Rh7 Qe7 Rb2 Qh4 Ngf4+ Kc4 Rh8 Ng2 Nec7+ Bd5 Nc3 Na6 Rg8 Bfc5 Rd8 Bf8 Rc8 Re2 Kd1 Re7 Kd2 Ne3 Nce6+ Bc6 Nac7 Bd5 Nce2 Be4 Nbc3 Rc1 Nb1 Rc3 Ra8 Rd3+ Kc1 Rd2 Rb8 Ndf5 Rc8 Nd4 Nh3 Kd3 Na8 Nd1 Rc4 Nc5 Rcc2 Ne3 Nhf4+
QrnNn1b1/3B3r/r4p2/1R4QQ/k2PNb1P/4r2Q/q1P2Q1Q/1KB1R2r w - - 0 1 illegal: No proof kernel
1rQB1R2/K4r1n/1b3Q2/n1nBB1B1/P1b1b2p/4B2q/k2P2PN/N1b2RB1 w - - 0 1 illegal: No proof kernel
1B4Rr/1QQn4/1pq1KB2/4N1bP/B3BP1n/4b1RB/BPrr3r/1nkN4 w - - 0 1 illegal: No proof kernel
r1QR4/3rNNBP/1q2rP2/1B3K2/bn2R1bR/8/p3nb1P/1k1NRNRr w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 c4 g5 b4 a5 f4 g4 h6 d6 b6 g3 b5 a4 b7 a3 b6 a2 h7 g2 c6 Bg7 c7 Na6 b8R Ne7 b7 Qf8 c5 Qd8 c6 Rg8 Qg4 Qd7 Nf3 g1R Bb5 Nb4 Nc3 Ng6 Bb2 Qe6 Nd2 Rd8 Nf1 Rd7 Re1 Bf8 Nd1 d5+ Ke3 d4+ Ke4 d3 Bc3 Rg2 Rg1 d2 Ba1 Bc5 Bb2 Kf7 f6 Bf2 f5 Nf4 Qh3 Rg6 Qc3 Kf8 f7 Kg7 f8R Ne2 Rd8 Kf6 Qh3 Ke7 Qg4 Kd6 Bc3 Kc5 Re8 Rdg7 Re7 Bd7 c8N Qb3 c7 Re6 Nd6 Rf7 Bc4 Ba4 c8N Rg7 Re8 Rd7 Nf7 Qb2 Bb5 Qb3 Bc6 Kc4 Ne7 Qb2 Rbd8 Kb3 b8R Kc2 Bb5 Kb1 Rbc8 Qb3 Rc4 Qb2 f6 Qb3 Kf5 e4 Qh3 e3 Rh4 Qb2 Be5 Qd4 Bf4 Qb6 Nb2+ d1B Bh6 Nc1 Bg7 Bg4+ Kf4 e2 Qc3 Bh5 Kf5 Bf3 Qc8 Bh5 Rd1 e1R Rdd4 Bf3 Nd1 Ne2 Rde4 Bg4+ Kg6 Rd2 Re5 Qb8 Rg2 Bf3 Nfe3 Rd7 N7d5 Nc3 Kf5 Rh1 Nf1 Red6 Re1 Ne2 Ree4 Re6 Rg1 Qb6 Ne7 Bg4+
1B1R4/6nP/Nn1PR2P/k2pRB1B/3r1b1n/1qr1rQ2/r1NR4/KR2Bb2 w - - 0 1 illegal: No proof kernel
qK1B3R/1Nnk1PN1/7P/bbb1p2N/1NB3nP/7r/1b1B1n2/BB2rQR1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 a5 Ke5 a4 b4 e6 c4 g4 f4 g3 c6 a3 h6 g2 c5 a2 b6 d4 f6 d3 f7+ Ke7 b7 d2 c7 Bd7 c8B Ra3 b5 Bc6 b6 Qd7 Bc4 Nf6 Qf1 d1N Bd2 Ne4 Nc3 Nf6 Nge2 g1B Nd5+ Kd8 Ng3 Na6 b8B Ne8 b7 Nf2 Nb4 Ra5 Nh5 Qd3 Bc7+ Ke7 b8B Bb5 c6 Nf6 h4 Qg6 f5 Bg7 f8N Ra4 Bd8+ Ke8 Kd6 Nd5 c7 Bc3 f6 Ra3 Bb7 Bb2 c8N Ne3 Be4 Nc7 Bb1 Neg4 Ba7 e5 Bd4 Rh3 Ne6 Rg8 Neg7+ Kf8 B4c3 Qd3+ Bd4 Qa3 f7 Qa6+ Kc5 Bc3 Nd6 Bb2 Nb7 Bc3 Be4 Bb2 Rc1 a1B Bb1 Bc3 Rc2 Bab2 Rc1 Qa1 Kd6 Qa6+ Nc6 Ba5 Kd7 Rg3 Kc8 Rf3 Nb4 Rh3 Ne8 Rg6 Neg7 Rf6 Rd1 Rff3 Rc1 Re3 Kb8 Re1 Rd1 Ne4 B4c3 Bc5 Rg1 Nef2 Rc1 Ba3 Ba1 Bb2 Rc2 Ne8 Bb6 Ke7 Bd8+ Kd7 Rc3 Nc7 Rcg3 Ne3 Rg6 Neg4 Re6 Rh2 Re8 Rh3 Rh8 Qa8#
2B2K2/bR2rp2/5Nbn/k1n1P1N1/B1qbr2Q/6B1/RB1P1PrN/N4Br1 w - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e6 dxe6 Nh6 a4 Ng8 axb5 Bg7 Qa4 Bh6 Qd1 Bf8 b4 c5 e4 h5 Ke2 a5 Kf3 c4 Kf4 h4 Ke5 c3 g4 h3 g6 c2 g5 h2 e7 Kd7 e8B+ Kc7 g7 Kb6 g6 a4 Na3 Rh3 Ra2 Rf3 Bb2 c1R Nc2 a3 Nh3 Bd7 Ng5 Rb3 Qh5 Rd3 Na1 Na6 Qh4 Nf6 g8N Rb8 g7 Bc5 Nh6 Rdc3 g8B Re3 Bh7 Nd5 Bf5 Qc8 Ng4 Bd4+ Kd6 Nf6 Ke7 Rc4 Kf8 Nc5 Rg1 h1R Nh2 Bc6 Rg4 Qc7 Bc8 Rg1 Rg3 Re1 Rb3 Ng4 Bed7 Rg2 Be8 Rb7 Bed7 Ka7 b6+ Ka6 b5+ Ka5 Be8 Ra7 b7 Nh6 b8B Qf4 b6 Re7 b7 Be3 Bd3 Reg1 Bf1 Ba4 Rb6 Bc2 Ba4 Qg4 Bf4 Rd4 e5 Bg6 b8N Re4 Nd7 Qe6 Rb7 Qc4 Nf6 Bd4 Bc1 Be3 Rab2 a2 Bg3 Bd4 Nc2 a1B Ra2 Be3 Ba3 Bad4 Na1 Na6 Bc1 Ba7 Ba3 Bed4 Bb2 Nc5
bR5n/2N1k3/1qBR4/b4nb1/BN1BqNp1/NbK1PNP1/4P1B1/2r1rQ2 w - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 h4 c5 dxc5 g4 Be3 e4 Bc1 e3 fxe3 Qg5 hxg5 Ba6 Kf2 Bb7 Ke1 Bc8 Kd2 a5 b4 d5 c4 f5 b6 h5 b7 d4 g6 a4 g7 a3 c6 h4 c5 d3 c7 h3 g3 f4 b5 f3 b6 h2 c6 a2 Kc3 f2 Na3 d2 Rb1 a1B+ Bb2 Be7 Bg2 f1B Nf3 Be6 c8B Bc4 c7 Nh6 g8N Bg5 Ne7 Nc6 b8N Bb3 b7 Nd8 Nbc6 Ndf7 b8N Nf5 Ng6 Rg8 Rg1 h1Q Na6 Nh8 Bb7 Rd8 Qc1 d1Q c8B Qd6 Ncb4 Qb6 Nf4 Ke7 Bc6 Rd1 B8d7 Rc8 Nc7 Re1 Ba4 Qh7 Bdc6 Qg6 Rh1 Qe6 Rh6 Qe4 Bh3 Bg2 Rd6 Rh1 Qe1 Rg1 Qf2 Re1 Qf1 Bh1 Kd2 Bg2 Bd4 Bh1 Bg2 Bb2 Nba6 Bc1+ Kc3 Bd2+ Kb2 Ba5 Nb4 Rb8 Kc3 Rd8 Rg6 Rd5 Rd6 Rc5+ Kd2 Rcc1 Rb2 Bc2 Kc3 Bb3+ Nc2 Bf6 Bd5 Kf8 Nh4 Qe7 Bh3 Qb8 Be4 Bf3 Bg2 Bf7 Bd5 Be4 Nf3 Bg5 Bb7 Qe5 Rb3 Ke7 Bd5 Bb6 Nbd3 Qb7 Rb5 Ba5+ Nb4 Qa7 Ba8 Bb3 Rb8 Qb6 Bb7 Bed5 Ba8 Qe4 Bb7 Rcd1 Na3 Rb1 Bbc6 Rbd1 Bd7 Ba8 Bdc6 Rc1+
k1B5/1b2r1R1/2qB1nRb/B1n3QB/2RpP3/1P3NP1/N1K1rq2/RB2bb2 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 f5 e4 a5 c4 h5 c6 d5 b6 f4 b7 a4 e6 h4 g6 f3 c5 f2 g3 a3 g7 d4 e7 a2 b3 h3 c7 Kd7 Bd3 Kc6 e8B+ Nd7 b8B Kb7 Kc2 f1B Qg4 h2 Qg5 Ra7 c6+ Ka8 Nf3 Bb7 c8R Ngf6 g8R Qc7 Rg6 Nc5 Bd2 Bh6 Nc3 Qb6 c7 Qc6 Bf7 Rh7 Be8 Re7 Rg7 Ra3 Bh5 Ra4 Rcg8 Ra3 Rc1 a1B Na2 Bc3 c8B Ra6 Be1 Bd2 Bd6 Ra4 Rg1 h1Q Rg6 Qh3 R8g7 Qf5 Rh1 Bf4 Ba5 Bd2 Ra1 Qf4 Rh2 Qe3 Re2 Qf2 Ree1 Ra3 Rec1 Ra4 Kd1 Rc4 Bb1 Rc3 Rc2 Re3 Rc4 Re2 Kc2 Be1+
nqB1nr2/Q6N/4b1Pk/1N1R4/KP3q1N/5qBB/NprR2Pb/1qN4B w - - 0 1 illegal: Other
kb1B4/N1nnnr2/4P3/N1R4r/BqnRpP1R/q7/P1B2QBR/1b1K3B w - - 0 1 illegal: No proof kernel
N1Q4N/r3B2n/3PP1bb/2BK1RBB/r4q1B/P5n1/b2pbNk1/2RN1q2 w - - 0 1 illegal: No proof kernel
1B3b2/2q4R/1NPr1kb1/1qb1pn1B/BBN2R1r/2nR1PK1/RP2QB2/6b1 w - - 0 1 illegal: No possible last move, all moves rejected
1Rr2r1B/R4bR1/Rp3PBK/nP2QN2/1r2qb2/k1B3BP/4b2B/5rrN w - - 0 1 illegal: No possible last move
n1q2n2/2pB4/1Bnb1rP1/2P1RB1N/BPrk1BB1/5Qrn/QN1nR3/5K2 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Be7 g4 Bb7 h5 Be4 Ra5 Bd3 Ra1 Bg6 hxg6 Bf8 e4 Ke7 b4 Ke6 c4 a5 g7 f5 b6 d5 b7 h5 c5 f4 g6 h4 g5 f3 Rh2 a4 Re2 d4 Nd2 a3 Nc4 d3 Bf4 a2 Nh3 Nd7 b8B Ra6 Nb2 Ne7 Ba7 Nc6 Bb6 d2+ Kf2 Rh7 g8Q+ Rf7 g7 Ra3 g6 Qc8 Bg2 Bd6 Kf1 f2 Bf3 Nf8 Rc1 a1R Bg4+ Ke7 e6 Kf6 e7 Rg3 Qb3 d1N e8B Nc3 Bed7 Nd5 Rce1 Rc1 Qf3 Rc4 e5+ Ke7 e6 Kf6 Ba7 Nb6 e7 Na8 e8B Be7 Be3+ Ke5 Nf4 h3 Nh5 h2 Bf4+ Kd4 Bb6 h1N Re5 Rf5 R1e2 Rf6 Qf7 Bd6 g8B Rc2 Qa2 Rc4 R2e3 Rh3 B8e6 Rg3 Ke2 f1N Bef5 Nf2 Ke1 Nb8 Re2 Nd2 Ba4 Nh3 Bed7 Nb1 Kf1 Nc6 R5e3 Qe8 Re6 Qc8 R6e5 Nd2+
1KnR1N2/B3B1nQ/4nbBr/3npR2/R1b1P3/nNq2BPP/2q4k/5R1B w - - 0 1 legal: proof: a4 a5 d4 h5 g3 b5 axb5 c5 dxc5 g5 Qd6 g4 Qd1 h4 gxh4 g3 h5 g2 Bd2 Ra6 Bh6 Rg6 Bc1 Rg3 fxg3 Rh7 Bg5 Rh6 Bc1 Rh8 Kf2 d5 Ke3 Kd7 Kd4 Ke6 c4 Kf5 b4 Kg4 Ke5 f5 c6 a4 h6 f4 e4+ f3 c5 e6 b6 d4 c7 d3 b7 d2 h3+ Kg5 h7 a3 b5 f2 b6 a2 c6 Ne7 Ne2 g1N Bg2 f1N Nf4 Nd5 Ng6 Ne2 Ba3 Nfe3 Rf1 Nef4 Bh1 Be7 Nf8 Nf5 Bd6 Bd7 c8B Ng7 c7 Bb5 Qc2 d1Q Nd2 Bd3 Nb3 Bc4 Bd7 Qe2 c8B Qc7 Be8 Qe3 Qd1 Qc3+ Qd4 Qc6 Bg6 Qa4 Ba3 Bf6+ Kd6 Nc6 b8B Nce7 b7 e5 Nd2 Nfe6 Qa7 Qac2 Bd7 Nc8+ Kc6 Qc1 Be7 Q1b2 Nb3 Qbc2 Rad1 a1N Rd4 Qc1 Bde8 Nc2 Bh5 Q1d2 B5f3 Na3 Bg6 Qdc2 Kd7 Bd3 Ra4 Bc4 Bc5 Be7 Bbd6 Kf6 b8R Bd8 Kc6 Be7 Kb7 Bd8 Bf5 Kf7 Ra8 Bf6 Kb8+ Ke8 Qb7 Kd8 Ba7 Ke8 Bc7 Ke7 Bd8+ Kd6 Bg6 Ncb6 Nc1 Kc5 Be7+ Kd4 Nb3+ Ke3 Rc1 Rg8 h8R Kf2 Rh5 Rh8 Rf5 Rh6 Rd1 Ndf4 Rd8 Kg1 Rd1+ Kh2 Rf1 Nc8 Bd8 Ngh5 Qh7 Ne7 Kb7 Nhg7 Rb8 Nc8 Be7 Nb6 Rd8 Nfd5 Kb8 Nc8
r2nb3/2R1N3/1r2BBKp/q5B1/P4PNP/RB1N1rN1/3qQ3/B1nr2kr w - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 f5 g4 a4 gxf5 e6 e4 a3 e5 Qd6 bxa3 Be7 a4 Bd8 a5 Bf6 exf6 Qd8 Ke2 Kf7 Ke3 b5 Ke4 g5 a4 c5 d4 b4 h4 h6 a6 b3 d6 b2 d7 c4 d5 e5 a7 g4 d6 g3 Qe2 c3 Nd2 b1R Ndf3 c2 Ra3 g2 Nh2 Qc7 d8B Na6 d7 Nb4 Bb2 c1Q Ba1 Rb3 Ng4 Qd2 Rh3 Qc5 Rc3 Qa5 Rc7 Rf3 Be7 Rb8 d8B Bd7 a8B Nd3 Bc6 Rb6 Bd5+ Re6 Bb3 Be8 Qe1 Nc1 Ne2 g1R Bh3 Rgf1 Ng3 Rh1 Qe2 Rd1 Bf8+ Ne7 Bg7 Kg8 f7+ Kh7 f6 Nc6 Kf5 e4+ Qb5 e3 f8N+ Kg8 Ng6 Kh7 f7 e2 Bge5 e1R Bef6 Rh1 N6e5 Rg8 Bde7 Nd8 Qe2 Rb6 Bg5 Kg7 f8N Rh8 Nd7 Rg8 Nc5 Kh7 Nc6 Rf8+ Ke4 Kg6 Nd3 Rg8 Bef6 Rf8 Nf1 Kh5 Ne7 Rh8 Nge3 Rf8 Bhe6 Rg8 N3f5 Kg4 N1e3+ Kh3 Ng4 Rf8 Ng3 Rh8 Qe3 Kg2 Qe1 Bb5 Qe2+ Kg1 Kf5 Bc6+ Kg6 Rf8 Kh7 Be8 Bfe5 Rf5 Bef6 Rfb5 Kg7 Rb8 Kh7 Ra8 Kg7 Rb6 Kh7 Bc6 Kg6 Be8+
1r1bR3/nQp1B2P/4q3/2PKNk1N/2NB2q1/3qB1BP/qNq1B2R/r4b2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 e4 d5 exd5 e4 a4 Nd7 axb5 Ne5 fxe5 Qe7 Na3 Qg5 Nb1 Qd8 Kf2 Ke7 Ke3 f5 Kd4 g5 c4 a5 b4 e3 h6 e2 h7 e1Q e6 Kf6 e7 f4 e8N+ Kg6 h3 f3 b6 g4 d6 g3 b5 g2 b7 a4 b8B f2 b6 a3 b7 a2 d7 Ba3 Rh2 Qg5 d8B Be7 Qb3 Bg4 Nc3 Be2 Nf6 Bh5 Ba7 Qe6 b8N Bf8 Nbd7 Rb8 Nd1 Qa6 Qb7 Bg7 Nb6 Ne7 Nb2 Be2 Nf3 g1Q d3 Bh6 Nh5 Rg8 Rb1 Nf5+ Kd5 Q5g2 Bh4 a1Q Bd2 Rgf8 Re1 Nd6 Bc1 Qg4 Bg3 Bg5 Bd2 Nb5 Bdf4 Bd1 Re8 Q1a2 Be3 Rf4 Ne5+ Kf5 d4 Bf6 Kc6 Be2 d5 Qg2 Kc5 Rd4 d6 Rd1 d7 Ra1 d8B Bh4 Bf6 Q2e4 Bfg5 Qc2 Kd5 Bd3 Be7 Be2 Bd6 Bd8 Be7 Bd3 Na8 Qf6 Bad4 Na7 Nb6 Be2 Bg2 f1Q Bf3 Qa3 c5 Qa2+ N6c4 Qfd1 Qb4 Bf1 Be2 Qdd3 Qb7 Qe6#
k2B4/n1Pbpqn1/RR2R1RQ/1NR4B/r4b2/1b2P2b/1K2NP1Q/1R1nn3 w - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 b5 a4 a5 axb5 g5 d4 g4 dxc5 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bg7 Qd6 Bh6 Qd1 Bf8 Kd2 h5 Kc3 d5 b4 Kd7 c6+ Kc7 b6+ Kd6 g6 h4 c7 Kc6 f6 Kb7 b5 g3 f7 d4+ Kb2 d3 c4 h3 c5 a4 e3 d2 g7 g2 c6+ Ka8 Ne2 g1N Na3 Nf6 g8R h2 Rg6 Bh6 f8Q Bd7 c8R Bf4 Qh6 Ne8 Qe1 d1B Bd2 Bh3 Ba5 Ng7 Ra2 Qf8 b7+ Ka7 Bd8 Bb3 Bg2 Qf7 Bf3 Re8 Bh5 Bd7 Nd4 Ne2 Qg1 Nc3 Ne2 Bh3 Qg2 Rf8 Rha1 h1B Qh2 Bhd5 Rd1 Bde6 Rd6 Bd7 Rde6 Re8 Ra1 Rh8 Rb1 Rf8 c7 Nc6 b8R Rh8 Ra8+ Kb7 b6 Na7 Nb5 a3+ Ka1 a2 Kb2 a1N Rcb8+ Ka6 Rc1 Nc2 Rb1 Ne1 b7+ Bc6 Rc8 Rf8 b8R Rg8 Rb7 Rf8 Rcb8 Rg8 Nd6 Bd7 Rb5 Rh8 Rc5 Rf8 Rb4 Rh8 Nb5+ Kb7 Qg5 Rh7 Bg4 Rh5 Qh6 Rd5 Bh5 Rd4 Ra4 Rb4 Raa6 Ra4 Rad6 Nc8 Raa6 Na7 Rdc6 Ka8 Rcb6 Nd1+
1KN3Rr/3nQ1p1/1NR3nb/3PP3/BbnRr1R1/1R3b2/3Nn1P1/2BkNb2 w - - 0 1 illegal: No proof kernel
1nB1rr2/3b1NKb/5b2/2NnN3/1pQ1R2p/B1r2P1R/3NP1kP/RRqR4 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 f5 fxe5 a5 b4 f4 bxa5 f3 Qc2 f2+ Kd1 Bd6 Qb3 Qf6 Kc2 Qf3 gxf3 Ke7 Kc3 Kf7 Qd1 Bf8 Kc2 Ke8 Kc3 Kd7 Kd4 g5 a4 h5 a6 b5 a5 b4 d6 Ke6 a7 Kf5 e6 Kf4 a6 c6 d7 g4 d8R g3 e7 g2 e8R Bd7 Ba3 Bd6 Re4+ Kf5 Nh3 g1Q Qc1 Qg4 Nf4 Bc7 Nd3 Be6 Qc4 Qf4 Nc5 Nf6 Bh3+ Kg5 d3 Kh4 Nd2 Bb6 Rhb1 Bg8 Bc8 f1B Rd7 Kh3 Rd5+ Qg4 Ke5 Kg2 d4 Bd8 Rd6 Qg7 d5 Qh6 Rd7 Be7 d6 Bh7 Ke6 Qe3 Kf7 Nd5 Kg7 Re8 Rd8 Rf8 d7 Qg1 Rh4 Qe3 Rh3 h4 Re8 Bg5 d8N Qc3+ Re5 Qc1 Nf7 Bd8 Re4 Be7 Nd3 c5 Nde5 Bg5 Qd3 c4 Qd4 c3 Qc4 Qe1 Rd1 c2 Rac1 Nc6 Rb1 Rb8 a8N c1R a7 Rc3 Nb6 Bf6+ Kh6 Re8 a8R Rf8 Ra5 Ra8 Nbd7 Nb8 Rdc1 Qd1 Nc5 Qc2 Re1 Qc1 Rd1 Kf2 Rg3 Bh3 Ra6 B3f5 Rh3 Kg2 Ra4 Bd7 Ra7 Bg5+ Kg7 Be7 Ra5 Re8 Ra7 Bf6+ Kh6 Be7 Bb2 Na6 Kg7 Rf8 Bb7 Rad8 Bc8 Nb8 Raa1 Rde8 Ba3 Bf6+
2RbB1B1/KRn1r1N1/n1n2QPB/2RRp1bq/6p1/4B1N1/4PP2/B1b3kr w - - 0 1 illegal: No proof kernel
1nqN1RbB/2n5/3P1PR1/1pPBk3/brBn2R1/QR3pRr/8/1Bb2NK1 w - - 0 1 illegal: No proof kernel
N2r3K/QBr2R2/1Pb2N2/BbnQ4/pP1bpR2/P1n3N1/1k1Nq3/1N3N1n w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 cxb3 Qc7 b4 Qb6 b5 Qd8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 h4 a5 f4 g5 c6 g4 c7 a4 a3 e6 h6 g3 b6 g2 h7 Ra6 h5 Qd6 h6 Qd7 Nf3 g1N Nh2 Qd8 Bd2 Bg7 Ba5 Nd7 b4 Nh3 Bg2 Ra8 Rf1 Bb7 c8N Ng1 Ne7 Kf7+ f6 Nc5 Ke5 d4 f5 d3 Rf4 d2 Nf1 Bc8 Bb7 Nh3 Qb3 d1B Qd5 Qd7 Ra2 Ng1 Raf2 Bf8 R2f3 Ke8 f7+ Kd8 f6 Ne2 Nf5 Ne7 N5g3 Ra7 Rf2 Bg7 f8N Nc3 R2f3 Rg8 h8N Be2 h7 Bb5 Nhg6 Nf5 h8Q Ke8 Nh7 Kf7 Rf2 Qe8 Nh4 Bcd7 Nf3 Bdc6 N3d2 Qe7 R2f3 Rd8 Qg8+ Kg6 Qf8 Qe8 Qe7 Bh8 Bc8 Rc7 Bb7 Ng7 f7 Nh5+ Nf6 Kg5 Nf5 Ng3 f8N Nh1 N5g3 Bg7 Nd7 Bh8 Nb8 Qh5 Qed7 Qh2 Na6 Qe2+ Kd6+ e5 Ke7 Bg7 Kf7 Bh8 Ne8 Bg7 Kg8 Kg6 Rf7 e4 R3f4 Bd4 Qc4 Rcc8 Nc7 Kg5 Na8 Rc7 Rf8 Kg6 Nf6 Kg5 Kh8 Kg6 Rh4 Kg5 Rh7 Kf4 Rf7 Ke5 Qb3 Bg1 Qe7+ Kd4 Qa2 Kd3 Qd5+ Kc2 Qed7 Rcc8 Qc7 Bd4 Qb8 Rc7 Qa7 Rdd7 Rg8 Kc1 Rg4 Kb2 Rf4 Rd8+
5n1Q/4rRPR/1kPNNb2/2R2bpn/1BrR2Pr/n5pN/4q1B1/2N3KN w - - 0 1 illegal: Other
3BR3/2Q1P2K/2p1r1R1/1B3rnN/bb2R3/Pp4PB/r4B1k/b1nRNB1q w - - 0 1 illegal: No proof kernel
R2N1q2/2kPppR1/b7/Nn3r1R/r2nb1B1/RP1r1P2/2nKNBQ1/N4R2 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 g4 Kd7 b6 c5 b3 h5 f3 a5 b7 a4 g6 a3 g5 a2 g7 h4 g6 h3 Qd2 c4 Qg2 c3 Ne2 h2 Be3 c2 Kd2 c1R Bf2 Ra7 Na3 Re1 Nc2 Nf6 g8R Ng4 g7 Rh6 Rh8 Ne5 g8R Nec6 Rg7 Na6 b8R Nc7 Ra8 Rf6 Rh5 Qf8 Rg1 Kd8 d7 Nb5 Rh1 Kc7 d8N Bh3 Nb7 Ra4 Na5 Rf5 Rg1 h1B d6+ Kb6 d7 Kc7 d5 Ncd4 d8N Rc1 Rb1 a1N Rb2 Re1 Ra2 Rc1 Ra3 Bg4 Ne1 Rc3 Nc2 Bh3 Ke1 Rd3 d6+ Kb6 d7 Kc7 Qg6 Bg4 Bh3 Bg2 Rh1 Bf1 Rg1 Rf4 Rh1 Bf5 Qg2 Be4 Bg4 Re3 Kd2 Rf5 Nb4 Nac2 Rg1 Ne1 Nc2 Rc3 Na1 Nec2 Ng3 Bc4 Ne2 Rd3+ Kc1 Nd6 Re1 Ba6 Rf1 Re3 Kd1 N6b5 Kd2 Rd3+
B3N2b/1Pn2N2/3B2BB/N1b2K1p/2p1bnR1/RN2r2P/1qrnP3/Q1B1k3 w - - 0 1 legal: proof: d4 b5 f4 d5 a4 g5 axb5 e5 dxe5 d4 fxg5 d3 cxd3 Bg7 d4 Bh6 d5 Bf8 Kf2 Kd7 Kf3 c5 Kg4 a5 b4 h5+ Kf5 a4 g4 c4 h3 f6 b6 a3 g6 a2 b5 Rh6 b7 Ra3 g5 Rc3 b6 Ba3 e6+ Kd6 g7 Kc5 d6 Kb4 g6 Re3 d7 Qf8 d8B Qe8 Nd2 Kc3 Ngf3 Rd3 Ne5 Na6 b8B Re3 Bg2 Qb5 Nb3 Nc7 Ba8 Bc5 Nc6 Bb7 e7 Rh7 e8N Ne7+ Kf4 f5 g8N Rh8 Nca5 Be4 g7 Ned5+ Kg5 f4 b7 f3 Rg1 f2 Nh6 f1N g8B Qb6 Bh7 Nf4 Nf7 Nd2 Rg4 Qb4 Bf5 Qa3 Qh1 Qb2 Bg6 Kc2 Qg1 Rc3 Qd4 Kd1 Bf6 Rf8 Bg7 Ke1 Bh6 Rc2 Qg7 Ncd5 Bd6 Nc7 Nh8 Rf6 Nf7 Re6 Qd4 Bh1 Kf5 Re3 Rb1 a1B Qg7 Qa2 Rb2 Qa3 Ra2 Bc3 Qd4 Qb2 Ra3 Bc6 Qd5 Bh8 Qe5 Qb1 Qa1 Qb2 Bg5 Bd5 Bh6 Be4+
4N2b/p5N1/2P5/NBN2RNr/p2q3Q/4P1Bn/1Pr1bBR1/K1nn1Bbk w - - 0 1 illegal: Other
k2r1b1B/1q4B1/2bR3p/p2P2q1/2Q1N2B/1KR2nnP/B3RPBq/3Nr1R1 w - - 0 1 legal: proof: e4 b5 g4 c5 b4 f5 gxf5 d5 bxc5 b4 exd5 b3 axb3 Ba6 b4 Bb7 b5 Bc8 d4 Kd7 Kd2 Kc7 Kc3 Kb7 b6 a5 f6 g5 h3 e5 d6 e4 d7 e3 f7 g4 Ne2 g3 c6+ Ka6 c7 Kb7 Kb3 h6 c4 g2 c5 g1Q c6+ Ka6 b7 Ka7 Nd2 Qgg5 Qc2 Qg7 Bg2 Qh4 d8R Be7 f8B Bg5 Qc4 Qg4 Ra2 Ne7 Bb2 Bd7 c8R Nf5 c7 Nc6 Nc3 e2 Nde4 e1Q Rg1 Ne5 Nd1 Bc6 Rd6 Nf3 b8B+ Kb7 Bc3 Ng3 Re2 Be7 d5 Q7g5 Bfg7 Bf8 Bcf6 Q5f4 Bh4 Qgg5 Ba7 Qed2 Bad4 Rh7 Bh8 Re7 Bdg7 Qd4 Re8 Rd8 c8B+ Kb8 Bf5 Qa7 Rc2 Qc7 Rc3 Ka8 Nd2 Nh5 Bb1 Re1 Ba2 Qh2 Re2 Ng3 Ne4 Qb7+
1R2NR1q/4q2Q/P2nrp2/pQbP3b/K1B2N2/PB6/BqB1B3/n1k3Br w - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Qd6 b4 Ng8 b5 Qa6 bxa6 Bh3 Nc3 Bg4 Nb1 Bc8 d4 Kd7 Kd2 h5 Kc2 c5 Kb3 b5 e4 h4 g4 b4 e6+ Kd6 e7 f6 e8B c4+ Ka4 c3 e5+ Ke7 a3 b3 e6 Kd6 g6 b2 g7 h3 e7 c2 g5 h2 g6 Nc6 Nd2 b1Q Ne2 Nb4 Bf7 Rh5 e8B Re5 Ne4+ Ke7 d6+ Kd8 d7 Ke7 Nf4 Ra7 Be2 Nh6 g8B Nf5 g7 Nd6 Ba2 Qb2 Bgc4 Re6 Be3 c1Q g8B Nc2 Qf1 Qe1 Rb1 Na1 Bg6 Ra8 Rg1 h1Q Rg3 Qh6 Bg1 Qh8 Rb3 Ra7 Rb8 Rc7 Bcb3 Rc1 B8f7 Bb7 Qh3 Ba8 Qh7 Rd1 Rc1 Bd5 Rcc8 Rc1 Ng3 Bf3 Ngh5 Bg4 Ng7 Bh5 Bgc2 Rd1 Bec4 Qe5 d5 Re1 Bf2 Rh1 Bfg6 Qe1 Bgd3 Kf7 d8Q Qe3 Be2 Qa7 Nd3 Qe7 Qg8+ Kg6 Qh7+ Kg5 Qb6 Bf3 Qb5 Bh5 Bf1 Kg4 Bg1 Kg3 Ne8 Kf3 Bh2 Ke3 Nf4 Kd2 Bfe2 Kc1 Bg1 Bh6 Ng7 Bg5 Rf8 Bh4 Ne8 Bf2 Rc8 Ba7 Rb8 Bc5
1rrBBNq1/6pN/2RN4/2Q1bQ2/2Pq1PP1/1N1RKb2/1n1pN3/1k2N1nn w - - 0 1 legal: proof: d4 b5 a4 f5 axb5 h5 e4 c5 dxc5 h4 exf5 Qc7 Qh5+ Kd8 Qxh4 Ke8 Qh7 Qd8 Kd2 Kf7 b4 Kf6 g4 Ke5 h4 Ke4 f6+ Kd4 b6 a5 h5 d5 b5 e5 c6 e4 b7 a4 h6 a3 c7 a2 f7 Ra3 b6 Rf3 Ne2+ Kc4 Qf5 d4 h7 d3 Rh3 Be7 f8N Nd7 b8Q Kb4 b7 Nc5 Qa7 Nf6 b8N Na4 Nbd7 Bd6 Na3 Nh5 Nc5 Be5 Nb3 Bb7 c8N Ng3 Nd6 Nb2 Qc5+ Ka4 c4 Nh1 Nc2 Re3 Rb1 a1Q Ne1 Rg8 h8N Qa8 Qc6+ Ka3 Nh7 Ka2 Ng6 Rc8 Qc5 Rg3 f4 Rg1 Ke3 d2 Rf3 Rg3 Ngf8 Rh3 Nf6 Rh8 Bg2 Rg8 N6h7 Rb8 Ne6 Rgc8 Rh3 Qa4 Rf3 Qe8 Nef8 Qe6 Rg3 Qg8 Rf3 Na4 Ba3 Nb2 Bb4 Bd5 Ba5 Bb7 Rc1 Ba8 Rc3 Kb1 Rh3 Bb7 Bd8 Bd5 Rd3 Qa7 Nec1 Bb7 Ke2 e3 Bc6 Qb6 Kf3 e2 Ke3 Qa7 Be8 Bf3 Rh6 Qd7 Nc2 e1N Rf6 Ba8 Rg6 Nf3 Ne2 Ng1 Ne1 Qa7 Nb5 Bd5 Rc6 Bf3 Nd6 Qd7 Ne4 Qdd5 Nd6 Qd4+
1BR1rnK1/Q1p1NPR1/1PNqpn2/R1q3P1/4b3/3RbB2/4r1Bk/R1B2b2 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 h5 Ke4 a5 Ke5 h4 b4 a4 g4 a3 d4 a2 f4 h3 d6 h2 d5 Ba6 b6 Rh3 b5 Nf6 d7 Rh5 b7 Rh8 b6 Bd3 d6 Bc2 g6+ Kg7 Ke6 Kh6 Kf7 Nd5 g7 Be4 g8B Ra7 f6 Bg2 f5+ Nf4 Nc3 Kg5 Nd5 Kh4 g5 Kg3 Nf3 Ne6 Ne5 Nc5 Nc6 Ne4 Qa4 Qc8 d8R Kh3 d7 Ra8 Qa7 e6 Bh7 Be7 Rg8 Bc5 d8R Qd7+ Nde7 Be3 Rg7 Re8 Rg1 Qd2 Rd3 Nd7 b8B Nf8 Kg8 h1B f7 Kh2 f6 Qb4 Bf5 Qc5 Bg4 Bh3 Bg2 Qd6 Rb1 a1Q B4f3 Qc3 Rb5 Qcc5 Ra5 Bf5 Bh3 Bg2 Re1 Bf1 Bhg2 Nh7+ f8R Bg6 f7 Nef6+ Kh8 Be4 Rfg8 Rd8 Re8 Rd7 Rc8 Nf8 Bd2 Rd8 Rea1 Re8 Bc1 Qb4 Qb7 Ra6 Qa7 Qbc5 Rb5 Ra2 Ra5 N6d7 Kg8 Rf2 Nd5 Re2 Nde7 Nf6+
1N1BqBKn/1P2r1qB/2q4k/1PNBn1p1/4Q1Rb/2p1rPBb/2N2N2/4R3 w - - 0 1 illegal: No possible last move, all moves rejected
8/PQB4p/2n1Bq1k/1NpB1K1N/5Rr1/B1b4b/BPNbnPq1/r1N3R1 w - - 0 1 illegal: No proof kernel
BK1RNBQ1/2R2nP1/b2r1NbR/b1pbk3/3R1p1P/3Pr3/4QRn1/1q5R w - - 0 1 illegal: No proof kernel
N3br1B/R2K2Pp/B1n1R1r1/Q3P1np/3nRN2/PB3nRq/Bk6/4b2B w - - 0 1 illegal: Other
1n2B1BB/2bP1K2/k1p3Q1/Nr5R/BpPBP2r/bq3bnR/1b2B3/N2Q4 w - - 0 1 illegal: No proof kernel
5R2/5qn1/pbRP2n1/3r1N1p/P1NBb1KP/2n1b3/1QN1NN2/q2BBk1B w - - 0 2 legal: proof: f4 c5 g4 d5 e4 f5 exd5 e5 fxe5 b5 b4 a6 bxc5 f4 d6 Ra7 c6 Re7 Nc3 Rf7 Nb1 Rf5 gxf5 Qe7 Ke2 Qc7 Ke1 Qd8 d7+ Kf7 Kf2 g5 Kf3 h6 d4 b4 a4 b3 h4 b2 c4 Qe7 d8B Nf6 e6+ Kg7 d5 Bb7 c5 Qc7 e7 Kf7 e8B+ Kg7 d6 Be7 Nh3 Ne4 f6+ Kh7 f7 Kg6 f8N+ Kf5 Na3 b1N Qe2 Nf6 Bh5 Rh7 Qb2 Nbd7 Bd2 Rf7 Ng6 Nf8 Bg2 Ne8 Rf1 Ng7 Be1 Rf6 Bh1 g4+ Kg2 f3+ Kg3 Ke4 Ngf4 Qd7 c7 Ke3 c8N Ng6 c6 Rf5 c7 Bg5 Nb6 Be4 c8N Rd5 Bf6 Qc7 Ne7 f2 Bb4 Qa7 Rc1 f1Q Rc6 Nd2 Rac1 Nb1 Rc8 Qd7 R1c6 Qe8 Rb8 Qf7 Nf2 Qc1 Be1 Nc3 Rf8 Qb1 Ne6 Qa1 Nc2+ Ke2 Nc4 Be3 Nf4+ Kf1 Nf5 Bb6 Kh2 g3+ Kh3 g2 Bd1 Be3 Ne2 Bb6 Bd4 g1B Nd3 Bf2 Kg4 Be3 Nf2 h5+
b3r1N1/B1QB2pn/1PB3R1/2Pr3N/1nqRR2p/KR3rnP/4BqR1/k7 w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 f5 d4 e5 dxc5 Be7 g3 Bg5 fxe5 f4 Bd2 f3 Bc1 Bf4 gxf4 Kf7 Ra6 Kf8 Ra1 Ke8 Kd2 Kf7 Kc3 Ke6 Kb3 d5 c4 a5 e4 h5 h3 h4 c6 d4 b6 f2 c7 d3 b7 a4+ Ka3 d2 b4 Qd4 b5 Ra7 f5+ Kf7 f6 Ke6 f7 Ra5 f8R Rh6 Ne2 Bd7 c8B Nf6 Rd8 Rh5 Qc2 d1Q Nbc3 Qa7 Rg1 Nh7 Ng3 Nf6 Rg2 Qe2 Be3 Qg4 Be2 f1R Nd5 Rh8 Nh5 Re8 Ne7 Na6 b8R Nc5 Ng8 Rf3 Rag1 Nh7 Bb7 Bc6 Rd4 Bd5 Bc6 Qf7 Rb6 Qg3 Rb1 Qf2 Rb3 Qf4 Ka2 a3 Bd7+ Kf7 Rbg6 Ba8 Qc3 Ra7 Bc6 Rd7 Qc2 Rd5 e6+ Kf8 e5 Ne4 e7+ Kf7 Qc3 Ng3 Qa5 Qg4 Qc7 Qe6 c5 Qg4 b6 Qe4 Bg5 Qg4 Bf6 Ke6 Bg5+ Kf5 e6 Qe4 Bf6 Qd3 Be5 Qc4 Kb1 a2+ Kb2 a1N Ka3 Rb8 e8R Nc2+ Ka2 Nb4+ Ka3 Rbd8 e7 Rc8 Qb7 Rcd8 Bb8 Rc8 Ba7 Ke5 Rf8 Rcd8 e8B Rc8 Bed7 Re8 Rdd3 Ke4 Rff6 Ke5 Qc7+ Ke4 Re3+ Kd4 Rd6 Nd3 Rb5 Kc3 Rb3+ Kc2 Re4 Nb4 Rd4 Kc1 Rde6 Kc2 Ree4 Kc1 Rc3+ Kb1 Rb3+ Ka1
2NkN1q1/2R5/prQpBR2/P1PnR3/Nqrn1b2/4N3/1r2Pn2/RN1KB3 w - - 0 1 legal: proof: d4 e5 dxe5 c5 f4 g5 fxg5 b6 g4 c4 h4 c3 h5 Bb7 bxc3 Bg7 c4 Be4 c5 Bg6 hxg6 Bf8 c4 h5 a4 f5 a5 d6 c6 f4 c7 f3 c8N h4 e6 h3 e7 a6 g7 b5 g6 h2 c5 b4 g5 b3 Bd2 b2 Bh3 Rh6 Qa4+ Nc6 Nb6 f2+ Kd1 f1R+ Be1 Rf5 Nf3 Qb8 Rf1 h1Q Nfd2 Rh8 Ndc4 Qe4 Ne3 Nf6 g8R Rf4 g7 Nd5 g6 Qb4 Be6 Rc4 Rf6 Qd8 Qb5 Rb8 Na4 Rh7 Rh8 Rb6 g8N Bh6 g7 Qc8 Nac3 Bf4 Na4 Rh3 Rh5 Qa8 Re5 Rf3 Nf5 Rb3 Ne3 Qd8 Bf7+ Kd7 e8N Qc8 Be6+ Kd8 Ne7 Nd4 g8R Qb8 Na3 b1N Rg7 Nd2 Nc8 Rb2 Rc7 Ne4 Nb1 Qa8 Qc6 Qb8 Na7 Qc8 Bf5 Qe6 Nc8 Qg8 Be6 Nf2+
1R3B1k/1qBP2p1/2r2prb/3qBB2/r2R1Pb1/6RB/N1KQnq1P/1N1R4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 d5 dxc5 d4 a4 Na6 axb5 Nc7 Bd2 Nh6 Bc1 Nd5 exd5 Ng8 Kd2 e5 f4 a5 c4 e4 b4 f6 c6 Kf7 c7 d3 h6 a4 d6 a3 b6 a2 h7 Nh6 b5 Nf5 b7 Bd7 c8B Ne3 b8B Be7 b6 Qc7 c5 Ra6 c6 Nd5 b7 Bg4 Bf5 Nc3 d7 Bb4 Ba3 e3+ Kc1 e2 Bh3 e1Q Ne2 d2+ Kc2 Qc8 c7 Qf2 Nc1 Rc6 Rg1 Ba5 Rg3 Ne2+ Bc5 Bb4 Qe1 Bc3 Bf8 Ba5+ Kb2 d1Q Qd2 Qh1 Kb3 Bc3 Kc2 Qd5 Ba7 Qa8 b8B Qb7 c8R Ba5+ Bac5 Bc3 Be5 Bb4 Na3 Bc3 Rb1 a1R Na2 Bd4 Rh1 Rg1 Bfd6 Rf8 Rc7 Ra8 h8R Ra4 Rb8 Bc3 Bf8 Kg8 Bcd6 Kh8 Nb1 Rg2 Rd1 Rg1 Qe3 Be1+ Qc3 Rg2 Rcc8 Rg1 Bc7 Rd6 Rf3 Qfb6 Nd2 Bh4 Bd8 Bh5 Rc4 Qf2 Rd4 Rc6 Nb1 Rg6 Rg3 Bg4 Ba5 Bg5 Bac7 Rb6 Qa5 Bh6 Qd2 Rc6+
rr1NRB2/3Rq2k/1R4nP/b2B1N1Q/3Np1KP/2npq1N1/3NP1q1/2n3R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 b4 f5 b3 axb3 Ba6 b4 Bc4 b5 Be6 fxe6 Rh7 Bd2 Rh6 Bc1 Rh8 Kf2 f5 Kf3 d5 b4 g5 c4 a5 h4 f4 e7 Kf7 e8R Kg7 h6+ Kh7 b6 d4 c6 a4 b5 a3 c7 a2 c8N Ra5 c5 Bd6 b7 Kg6 b6 Bc7 c6 Na6 b8N Qd6 b7 Rb5 Ba3 Kh7 Bg2 Qe7 Nd6 Ba5 c7 Nb4 c8N Nd5 Nf5 Nc3 Kg4 f3 Nc6 f2 b8R f1Q Bd5 e4 Ncd6 Qg2+ Ng3 d3 Qd2 Rb3 Nf5 Rb2 Rbd8 Rb8 Rd7 Ra8 Nd8 Rb8 Kh5 g4 Nf3 Ra8 Rg1 Rb8 Nf1 g3 Qg5 Ra8 Nbd2 Rb8 Rb1 a1N Ra7 Nb3 Kg4 Nc1 Rd7 Qg7 Nb7 Ne7 Rf8 Re8 Rb6 Qh1 Rg2 Ng6 N3d4 Ra8 Qh5 Qg1 Rb8 Qe3 Bc5 Rc8 Bf8 Qe7 Nfd6 Rc7 Re8 Rcc8 Nd8 Rcb8 N6f5 Qg1 Rf2 g2 N1g3 Qh2 Rf1 g1Q Rd1 Qe3 Rg1 Qg2
1bB5/q1Pp2p1/Q1nN3q/NRB1RNNk/qP3n2/1r6/2r1r1P1/1KBBN3 w - - 0 1 illegal: No proof kernel
4knNN/1q1p2B1/2Br2Nq/1pP1P1B1/4K3/2Nq2N1/3Pb1r1/r2BRQbR w - - 0 1 illegal: No possible last move
1B6/bPRrP3/2b1BRr1/2Nq2p1/1B1k1rBn/3bbp2/1KQ1B1P1/1NR3R1 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 c5 fxe5 c4 h5 c3 dxc3 Nc6 c4 Nce7 c5 Ng6 hxg6 Qf6 Qd2 Qb6 Qd1 Qd8 Ra6 Ke7 Kd2 f5 Kc3 d5 b4 h5 e4 f4 c6 Ke6 g7 f3 b6 d4+ Kb2 h4 c4 d3 b5 h3 c7 d2 c5 h2 c6 Qd3 b7 Bb4 b8B Qd8 b6 Ne7 Nh3 Rh4 Rg1 h1R Nf2 Ng6 Qc2 Bd7 c8B Rh7 b7 d1B Nd3 Bd2 Rb6 a5 g8B+ Rf7 Ra6 Rh4 Rb6 Bf4 Bd2 a4 Bb4 Ra5 Qc4+ Rd5 Be2 Be3 Qc3 Rh7 c7+ Rd6 Rc6 Ba7 Rc4 Bc2 Nc5+ Ke7 e6 Rf4 Nd3 Bb5 e5 Nh4 Nc5 Bc6 Qd2 Bg6 Rcc1 Bd3 Qc2 Rh6 Bd7 Rg6 c8R Rd5 Bf7 Rd6 Nb3 Qa5 Rc7 Qd5 Nc5 Rg8 Bde8+ Rd7 Bh5 Rg7 Bef7 Rg6 Bg4 Kf8 e7+ Kg7 e6 Kf6 e8R Ke5 e7 Kd4 Rcd1 a3+ Ka1 a2 Bfe6 Ke3 Kb2 Kd4 Rf8 a1B+ Ka3 Bc3 Rf6 Be1 Kb2 Bf2 Rc1 Be3
k1rrb1rR/1R1pK1p1/4rB2/1QBP4/nN3n1N/RnB3P1/P1BB3R/q7 w - - 0 2 legal: proof: e4 a5 b4 f5 bxa5 h5 exf5 b5 c3 e6 Qg4 b4 Qh3 h4 Qxh4 b3 Qh7 Bb4 cxb4 Qh4 Nc3 Qe7 Nb1 Qd8 Ke2 c5 Ke3 b2 Kf4 c4 Ke5 c3 Kd6 e5 h4 e4 f4 c2 d4 e3 a6 e2 a7 e1N b5 Qg5 f6 Kd8 h5 Qg4 f7 Qf3 f8B Qd1 g3 Qg4 b6 Qe2 h6 Qa6 f5 Qa5 d5 Qa4 b7 Qe4 f6 Qe3 f7 Qd4 Bd3 Qc3 Rh2 Nf3 Bd2 c1R Bc2 Ne7 Qd3 Rg8 h7 Nd4 h8R Ng6 Qb5 Na6 b8B Nf4 Na3 b1R Nf3 Nc5 Nh4 Ba6 Be7+ Kc8 f8B Na4 Bf6 Nb3 Ke7 Re1+ Bbe5 Rbc1 Rb1 Qa1 Rb2 Rb8 a8R Re4 Qb4 Be2 Qb5 Bh5 Ra6 Be8 Rb1 Rc4 Bec3 Rb6 Ra7 Kb8 Rb7+ Ka8 Rb2 Nbc5 Rb3 Re6+ Kd8 Rce1 B8e7 Rc6 Bf5 Nb2 Nc2 Nba4 Nb4 Ree6 Ra3 Nb3 Bc2 Rb6 Rc7 Rcc6 Bc5 Rb8+ Rc8 Red6 Ke7 Rc7 Rd8 Ra6 Rc8 Rcc6 Rc7 Rd8 Rb7 Rcc8 Bg1 Rb6 Bc5 Re6+
4n3/q1qQb2R/bN1R2q1/2p1RB1R/P4pKN/4PP1n/7B/kr1BBqB1 w - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 e5 gxh5 b4 dxe5 Ra6 c3 Rb6 c4 Rb5 cxb5 Rh7 Nc3 Rh6 Nb1 Rh8 a4 Ke7 h4 Ke6 a6 d5 b6 g5 h6 f5 h5 c5 h7 b3 b7 d4 h6 Kd5 a7 Kc4 a8B b2 e6 g4 e7 g3 e8R d3 Re5 g2 Nd2+ Kc3 Nc4 b1Q Rh5 Qb5 Nf3 g1Q Nh4 Qf6 f3 Qe6 Nb6 Qec6 Be3 Na6 b8B Qgg6 Kf2 Qc7 Be4 Kb2 Bd2 Qb3 Be1 d2 e3 Qc4 Be2 Be7 Ra3 Qcf7 Rd3 Bb7 Rd6 Nf6 Bc2 Rf8 h8B Ng4+ Kg3 Nf2+ Kf4 Ka2 h7 Bc8 Bb1+ Ka1 Bg7 Qa7 h8R Nc7 R8h7 Ba6 Bf6 Rc8 Bg5 Ne8 Kg3 Ng4 Bf4 Rd8 Bc7 Rb8 Kh3 Qfg7 Bh2 Rb7 Kg3 Nf2+ Kf4 Rb8 Bg1 Rb7 Qc2 d1Q Qd3 Q7f7 Qb5 Qd3 Bd1 Qf1 Qd7 Ne4 Bg3 Ng5 B3h2 Qfg7 Kg3 f4+ Kg4 Q7f7 Bf5 Rb8 Nc8 Rb1 Ba5 Qfg7 Be1 Q7f7 Nb6 Nh3+ Rg5 Qgf6 Rgh5 Q6e6 Qb5 Qed7 Qc6 Qdc7 Qd7 Qg6+
1Q2Q3/4q1k1/1B1Pp1rn/q1b1r1N1/3q2B1/KP1Bn2p/R1BqP2B/NB1R4 w - - 0 1 illegal: No possible last move
2R2RBR/2n2Nn1/nPP1RprK/bN3k1N/3Q1Bp1/5bbr/2NR2Pb/8 w - - 0 1 illegal: No proof kernel
2NB1Q2/bQqB2rp/2BR2q1/r1B3r1/BKR1pN1P/2n1P2B/3P4/3r2kq w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Be7 f4 Bc5 f5 Bf8 g4 Be6 Bh3 Nc6 Bf1 Nce7 fxe6 f5 Qb3 f4 Qd1 Nf5 gxf5 Rc8 Ba3 Rb8 Bc1 Ra8 h4 Ke7 a4 Kd6 e7 Kc5 e8B Kd4 e3+ Ke4 d6 g5 d7 b5 a6 c5 a5 b4 a7 g4 f6 b3 a6 f3 f7 c4 Ne2 g3 Bh3 c3 Na3 b2 Nb5 b1R Qb3 g2 Kd1 g1R+ Kc2 f2 Ba3 Kf3 Bc5 f1Q Nd6 Kf2 Nc8 e4 Nf4 Qb6 d8B Rd1 Bed7 Qg6 Qb7 Rg5 Kb3 c2 Kb4 c1Q Ra4 Ne7 Rg1 Bg7 f8Q Bd4 Rg3 Qh1 Rg1 Rb8 a8B Rg8 a7 Rg7 Ra6 Qc2 Rd6 Nd5+ Ka3 Nc3 Kb4 Ra1 Rb1 Ra5 Rc1 Qcd1 Rc2 Qc1 Ba4 Kg1 Bad7 Nd1 Rc4 Qc2 Qb5 Qc1 Bac6 Nc3 a8B Rb7 Qb6 Rba7 Qb5 Ra1 Qb8 R7a5 Ba4 Qc2 B8c6 Rd1 Qb7 Qc1 Re6 Qc2 Bd6 Ba7 Bc5 Qd3 Rf6 Qd6 Re6 Qb8 Rd6 Qc7
3b1b2/BR1B2NP/k1r1QpK1/nR1N2R1/P6N/r1pN1Rp1/1q2NbP1/3n4 w - - 0 1 illegal: No proof kernel
2B1n3/1pBn1N2/1B2r3/1pQ1b2k/b1BP2b1/1P2P1Rr/1Kp2Rq1/RN3B1R w - - 0 1 illegal: Other
5R1Q/N2qbp1R/PQ6/2p1qbq1/NrP1nkP1/QKBQ1B1Q/4p3/5n1Q w - - 0 1 illegal: No possible last move
1nK1R1b1/1Bpp1Rq1/Bk1rb3/1B1Pb1B1/1qB2P2/5BPp/4N1NQ/Qr6 w - - 0 1 illegal: No proof kernel
N2BRq2/pPp2n1R/p1PrrR1K/1qR3B1/1B1QB2N/Pk6/n2r1b2/R7 w - - 1 2 illegal: Other
3R1N1r/B1PppkNR/5b1R/r6N/N1b2n1R/QPN1P1q1/2Brp3/q1K5 w - - 0 1 illegal: Other
1Rn2N1b/3PB3/np1p4/3rRP2/pk3BRQ/1rn2bB1/1N1P1BR1/5BKb w - - 0 1 illegal: No proof kernel
4bQ2/2N1PrBr/bR3p2/2p5/N2k1bK1/1BNBpPN1/B1n1PqbB/1R6 w - - 0 2 legal: proof: h4 e5 b4 g5 hxg5 b5 a4 e4 axb5 Na6 b6 Bh6 c4 Bb7 d4 Qe7 c5 Bc8 c6 Qe5 dxe5 Nc5 b5 Nb7 cxb7 Bf8 b8N Ke7 g4 Ke6 f3 h5 Kf2 a5 Kg3 d5 g6 c5 g7 f6 g5 a4 g6 a3 b7 a2 b6 h4+ Kg4 h3 Na6 h2 b8N d4 b7 Kd5+ e6 d3 Nh3 d2 Nc3+ Ke5 Nf2 Ne7 g8B Bh6 g7 Rh7 Nd7+ Kd4 b8B Ra7 Nb6 Ng6 Rb1 a1Q Nc7 Bd7 Nba4 Bf4 Bh3 Nh4 Rb6 Be8 e7 Nf5 Rf1 h1B Bb3 Ra8 g8B Bg2 Nh1 Bb5 Bgd5 Ba6 Ng3 Qb1 Ba2 Qb4 Qb3 d1B Qb1 Qb2 Bdb3 Qd2 Qb2 Qe3 Bd2 Bc2 Rb1 Qf2 Qa1 Bcd3 Qb2 Bdb5 Bc1 Bd6 Bh6 e3 Bg7 Be8 Qa1 Be5 Qb2 Bf4 Qd2+ Ke5 Qd8 Nd4 Qc8 Nc2 Qd8 Bg6 Qf8 Bh5+ Kh4 Kd4 Bf5 Be8+ Kg4 Ra7 Na8 Rd7 Bd3 Rd5 Bd6 Re5 Nc7 Reh5 Bh8 Rf7 Bg7 Bg5 Nf1 Rh7 Bh2 Bh6 Ng3 Bf4
5b2/1p1P1BbQ/qnRBK3/p1BB1PNR/1Pp1R1R1/1k1bB2N/4r2b/7n w - - 0 1 illegal: No proof kernel
R2BNqRK/1kqP4/3q2pr/1B1p2R1/nr4P1/3PBQN1/4pB2/3BRrb1 w - - 0 1 illegal: No possible last move
n1Q3N1/P2Pq1b1/3p2np/1bK1NN1k/R1pPB2B/NN6/B3rpBR/4r3 w - - 0 1 illegal: No possible last move
kn1BB3/PrK3p1/3RN2p/3N1N1P/2b2q1N/bN1bppR1/4Q1P1/N1Q2r2 w - - 0 2 legal: proof: d4 a5 b4 d5 bxa5 Kd7 e4 Nh6 c4 Na6 cxd5 Ng8 d6 Kc6 d7 Nb8 d5+ Kd6 f3 Ke5 f4+ Kf6 e5+ Kg6 Qe2 e6 Qd1 Qe7 Nf3 Qd6 Ng1 Nc6 exd6 e5 Qd2 e4 Qd1 Ne5 fxe5 Ra7 Qb3 Ra6 Qd1 Ra8 Kf2 Kf5 Ke3 c5 d8Q b5 a4 h6 h4 f6 h5 b4 e6 Ke5 a6 c4 d7 Kd6 Kf4 c3 a7 f5 e7 b3 e8N+ Kc5 Ke5 c2 d6 Kc6 a5 Kb7 a6+ Kc6 Qe2 b2 Na3 b1B Qg5 f4 d8N+ Kb6 d7 Bc5 Nb7 Nf6 d8N Be6 Nf3 Bf7 Nh4 f3 Ne6 Bg1 Kd6 Ba2 Rh3 Bd5 Rg3 Rc8 a8N+ Ka7 Nbc5 Bb3 Nac7 Be3 Nd5 Bc4 Nb3 Ka8 a7 Nd7 Ra2 Rb8 Kc7 Bg6 Nd6 Bc5 Ndf5 Rhe8 Bd2 c1Q Nc2 Rb5 Ba5 Nb8 Nca1 Ba3 Rd2 Rd8 Rd4 Rd6 Qgd2 Rbb6 Qde1 Qf4 Qc1 e3 Nf6 Rd8+ Rd6 Rb4 Nd5 Rd7+ Kc8 Rdb7 Bd8 R7b6 Kc7 R6b5 Nbc5 Rb2 Ncb3 Rc2 Qed1 Rf2 Bd3 Rf1 Qe2 Bh7 Bc2 Rb6 Bd3 Ba6 Bb5 Rb7+ Kc8 Bg6 Bc6 Bc4 Be8 Rb6 Kc7 Rb5 Nfe7 Bgd3 Nef5 Rb7+
RqQn2Bk/1b1p1B1B/p1r5/1R1N2Bb/P3p3/2N1KRp1/P2P3r/R1R4q w - - 1 2 illegal: No proof kernel
R2Rq1n1/R1pp2kB/1PqN4/1Q2Rp1n/5r2/R1KPB1n1/b3pPN1/3RQ3 w - - 0 1 legal: proof: b4 a5 e4 b5 a4 h5 axb5 f5 g4 e6 gxh5 a4 c4 Ra5 b6 Qh4 e5 Kd8 b7 Rb5 cxb5 Be7 b6 Bf6 b5 Ke8 exf6 Qb4 Nc3 Qe7 Nb1 Qd8 h4 Kf7 h6 g5 h7 a3 h5 g4 h6 e5 Nc3 g3 Nge2 g2 Ne4 g1Q Nd6+ Kg6 f7 a2 f8R e4 Nf4+ Kg5 Ng2 Kg6 Re8 e3 Re5 Na6 b8R Qe8 b7 Qd8 Ra8 Nc5 b8Q Qf6 Ra3 Ba6 d3 e2 Kd2 Qd8 Kc3 Ne6 Be3 Ng7 Qe1 Qe8 Rd1 a1N Rh4 Nh5 Rha4 Bb7 Ra7 Be4 Qb7 Qh2 b6 Qg1 Qc6 Bd5 Qb5 Nb3 Bd2 Ngf6 Be3 Rg8 h8R Nc5 h7 Qh1 Rb1 Ba2 Rd1 Rg7 Rf8 Ng8 h8R Qe7 Rd8 Ne4+ Kb2 Neg3 Kc3 Nh6 Rhe8 Ng8 Rda8 Kf6 Red8 Rg4 Nh4 Rb4 Bg2 Rf4 Bd5 Qf8 Ng2 Kg7 Bf7 Qe8 Bg6 Bc4 Bh7 Ba2 Nh4 Qe4 Ng2 Qc6+
q1b2Q2/2Np4/5r1r/1p2rP1p/4pnRP/1P1Br2N/2R2NKB/BkBNB3 w - - 0 1 legal: proof: d4 c5 dxc5 b5 e4 f5 exf5 e6 f4 Ne7 a4 Na6 g4 Ng8 g5 Ke7 a5 Nb4 f6+ Ke8 f5 Nd5 Qf3 Nb6 Qe2 Bd6 Qd1 Be5 f7+ Ke7 Ra3 Bf6 Ra1 Qf8 gxf6+ Kd8 Ra3 Kc7 axb6+ Kc6 Ra1 Qd8 Ra2 g5 Kf2 h5 f8B a6 h4 g4 c4 e5 f7 a5 b7 a4 b8B a3 Bg7 Ra5 f8B Ra6 Nh3 Qa5 Nc3 Qb6 Rg1 g3+ Kf3 g2 Qd6+ Kb7 Be2 Qa5 c6+ Kb6 Nd1 Bb7 Be7 Qd2 c5+ Ka5 Bg5 Kb4 Qf8 Qd6 Bgd2+ Kb3 Be1 Kc2 Kg3 Ra7 c7 Nf6 c8N Kb1 c6 Rh6 c7 Qc6 Nd6 Ra6 c8N Nd5 Ne7 Bc8 Ne4 Qa8 Bd6 Rc6 Bf6 Rc5 Nef2 e4 Kh2 Rc2 Bg3 Nf4 Nd5 Rd2 Nc7 Rd5 b3 Rc5 Rc2 a2 Bd3 Rd5 Ng4 a1R Bd4 Raa6 Ba1 Rad6 Rh1 g1R Ngf2 Ng6 Bge5 Rg3 Rg1 Re3 Rg4 Rf6 Kg2 Rc5 Bg3 Re5 Bh2 Nf4+
6R1/p2q2r1/3Bn1Nn/1b3r1p/P1b1B2P/2QPR1RN/rR3n1k/NKN3bN w - - 0 1 legal: proof: e4 d5 exd5 c5 f4 g5 fxg5 Bh6 b4 Bg7 bxc5 Bf8 h4 Kd7 c4 e5 g4 b5 a4 h5 d3 f5 Kd2 f4 Kc2 b4 g6 e4 g7 e3 c6+ Kd6 c7 Ke5 d6 f3 d7 Kf4 c5 Kg3 c6 e2 g5 e1R g6 f2 Ne2+ Kg4 Bf4 Qf6 d8N Bc5 Nd2 b3+ Kb1 b2 Bg2 f1N Be4 Bb4 Bd6 Nh2 Ne6 Kh3 Ra2 Na6 Qc1 Qd4 Nb3 Rg1 Na1 Rg2 Qc3 Nc5 Nc1 Bb7 c8N Nh6 g8R Rh7 c7 Ba6 g7 Bb5 Ne7 Rf8 c8N Rf5 Re1 N2g4 Ng6 Nf2 Nef4+ Kh2 Re3 Ne6 Nce7 Bc5 Nh3+ Nf4 Rg3 Ne6 Re8 Bb6 g8R Rg7 Bc7 Qd7 Bd6 Rf3 Nf5 Be3 Kc2 b1B+ Kb2 Bc2 Re7 Bd1 Kb1 Bb3 Rb2 B3c4 Rg4+ Kh1 Ng3+ Kh2 Nh1+ Rf4 Rg3 Rf5 Bd5 Nfg4 Ree8 Bg1 Be4 Nf2 Ba8 Nf4 Ree3 Ne6 Be4 Nd1 Rb4 Ra2 Rb2+ Nf2
1rnr2QB/B4nK1/bPk5/p2R1p1N/PnqBb1B1/5P2/1bN1BbNR/6N1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 h5 cxb5 Nf6 g4 Ng8 gxh5 Bd6 Nd2 Bc5 Nb1 Bf8 Kd2 f5 Kd3 a5 Kd4 g5 h4 d5 b4 Kd7 a4 g4 e4 g3 e6+ Kd6 e7 c6 e8B g2 b6 Qe7 b7 Qd7 h6 Qd8 h7 Bg7+ e5+ Kc7 b5 Nd7 b8B+ Kb6 h5 Nf8 h6 Qe7 f3 Nf6 e6 c5+ Ke5 c4 Na3 c3 Qb3 c2 Be3+ d4 Be2 c1N Rh2 Qb4 e7 Ne6 Nc2 Ng5 Qg8 Na2 Bh5 Ba6 e8N Nfe4+ Nf6 Qc4 Bg4 Nb4 Rd1 Nd6 Ba7+ Kb7 b6 d3 Bf2 Rb8 Bd4 Kc6 Rd2 Nc8 Rd1 Bf8 Nh5 d2 Kf6 Nf7 Kg6 Bc5 Kg7 Bd6 Qd8 Rf8 h8N Bf4 Qg5 Rd8 h7 Be3 Ng6 Bf2 Rf1 d1B h8B Nfd6 Nh4 Nf7 Bd3 Be2 Rd1 Bf1 Be2 Bb7 Nh3 g1B Ng2 Ba6 Ba1 Bb7 Rd5 Ba8 Bf6 Bd4 Be5 Bb2 Bd4 Bf2 Ng1 Bb7 Kh7 Ba8 Qg8 Bb7 Kg7 Ba6 Bd1 Bd3 Be2 Be4
1RN2nk1/1br1n1Bq/B1rrnp1Q/2B1p3/K2NP2B/1B2pP2/R2bP3/QB6 w - - 0 2 illegal: Other
K2bR1bn/6QR/qR1RP1R1/k1pp2pn/2rP2B1/2r1B2Q/1N3nPN/5rR1 w - - 0 1 illegal: No proof kernel
rkr4B/bp3pn1/1P2R2p/q5Nb/2r3BN/2N1KQ2/1B2n1PP/2BbR1BN w - - 0 1 illegal: No proof kernel
Rr2r1NK/bB3r2/RR6/1qPq1p1B/1Bb1pP2/QR1n2n1/2kpP3/R1N1B3 w - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 Kd2 g5 Kc3 d5 Kd4 Kd7 Ke5 f5 f4 a5 h4 g4 c4 g3 b4 a4 c6+ Kc7 h6 Kb6 c5+ Ka7 b6+ Ka6 h7 Kb5 h5 Kc4 c7 e6 b7 d4 b5 a3 h6 d3 b6 g2 Nh3 g1R Ng5 a2 Nd2+ Kc3 Nge4+ Kb4 Qb3+ Ka5 Bh3 Nf6 Qa3+ Kb5 Nb3 Kc4 Bg4 Ra7 Bd2 Bg7 Be1 d2 Nc1 Nh5+ Nf6 Na6 b8R Re8 h8R Nb4 b7 Ng3 h7 Bf8 Ng8 Qd5+ Kf6 e5 Rh2 e4 Rh6 Bd6 Kg7 Be6 c8B Nd3 Bh5 Bf7 Ra8 Bb8 Rb6 Rg2 Qa4+ Kc3 Qa3+ Kc2 Ra6 Bc7 b8R Bb6 Bb7 Be6 Rd8 Rg1 Rd6 Rh1 Rb8 Ra8 Rc6 Ba7 Rcb6 Rh2 Nh6 Rh3 Rg8 Rh4 Kh8 Rg4 Rf8 Rg7 Ng8 Rf7 Rb3 Rfe7 Rf6 Bf7 Rd8 Rb8 Rfb6 Rd7 Kg7 Rc7 h8B Rd7 Kh7 Rc7 Bc3 Be6+ Kh8 Rf7 Rab1 a1Q Rc8 Qa2 Bb4 Qc4 Ra1 Qb5 Bc6 Bc4 Bd5 Rbb7 Ra8 Rbb8 Bb7 Qb2+ Rf6 Qd4 Rb6 Qdd7 Ra6 Qd8 Rfb6 Qd5
BK2RN2/nbBn1N2/pP1N1pR1/2q2qp1/PQ4PN/N1b2nRr/1R3r2/5k2 w - - 0 1 illegal: No proof kernel
K4B2/2p3p1/qbPr2k1/4pb1n/N2b1rB1/4BNQN/bPRNP1B1/1B2R1n1 w - - 0 1 illegal: Other
n1NB3N/p1Nb1R2/2pN1K2/2P1rp1R/1q5r/P3nn2/k1NBbPQ1/n4BB1 w - - 2 3 legal: proof: d4 h5 g4 e5 dxe5 c6 gxh5 Qb6 b4 Bc5 b5 Qd8 b6 Ba3 Qd5 Bd6 Qd1 Bc7 bxc7 Qh4 Nd2 Qe7 Nb1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 b5 c4 f6 c5 g4 h6 b4 h5 b3 h7 b2 h6 g3 Nh3 d6 Nf4+ Ke7 e6 d5+ Kf5 g2 e4 g1N e5 d4 Qg4 d3 Na3 b1B Rh5 d2+ Nc2 d1N a3 Qd4 Bd2 Nd7 Qg2 Ba2 Rb1 Bc4 Rb7 Nb6 Kg6 Bd7 c8N+ Kd8 Kf7 f5 Ng6 Ne7 Kf6 Ne3 Rc7 Re8 h8B Nf3 h7 Be2 Bg7 Qa4 h8B Qb4 Bh6 Rb8 Bf4 Na8 Bh2 Rb5 Bg1 N7d5+ Kf7 Ra5 Bg7 Ra4 Nh8 Re7+ Kg6 Ke8 Bf6 Kf8 Bg5 Re8 e7+ Kg8 Nd4 Nc2 e6 Na1 Nc2 Ne3 Kf6 Qc3+ Kg6 Rh4 Bf6 Qb4 Rb7 Rd8 e8N Kf8 Nc7 Re8 Bd8 Re7 Kh6 Re8 Ng6+ Kg8 e7 Kf7 Nh8+ Kf6 Kh7 Ke5 Kg7 Ke4 Kf6 Kd3 Qh3 Kc4 Qg2 Rg8 e8N Kb3 Ned6 Re8 Nd5 Re5 Rc7 Be6 Rf7 Bd7 Nc7 Ka2
kr5N/r1r2RPp/R4NRP/5qNb/NBp1R1p1/1Nb1Q1pn/2P3B1/1K2n3 w - - 0 1 illegal: Other
3Q1R1N/2N1bKR1/2Rn1pp1/1ppB1kP1/n1rPqr1n/B5R1/2P3N1/N2R1b2 w - - 0 1 illegal: No proof kernel
6RK/1Q4RR/pR4B1/Bn1bp1P1/bp2P1pN/n1qr3k/P4B2/BrN2Rb1 w - - 0 1 illegal: No proof kernel
3R4/1bk2p2/1np4N/K1P1p1Nq/N3PRB1/1rB1p1rB/5P1N/1NBbbnQ1 w - - 1 3 illegal: Other
R1r3q1/1r1Q3p/n4BPN/1p1B3P/1PpK3B/BBQ1B3/bbpq3k/N3Rn2 w - - 0 1 illegal: Other
bBbN4/Rqrp4/BKpN1R1N/R1PQ2b1/R6p/R1p2N1P/2nP4/4nb1k w - - 0 1 illegal: Other
4Rq2/4Qn1P/1B6/Pn1rNPB1/K1NRp3/3R1pnR/5N2/kn1Br2B w - - 0 1 legal: proof: a4 h5 b4 b5 axb5 f5 c4 a5 bxa5 g5 e4 d5 cxd5 f4 g3 Bf5 exf5 h4 Ra4 g4 Ra2 Bg7 Ra1 Bf6 gxh4 g3 h5 g2 Ne2 Bh4 Ng1 Bg3 fxg3 Kf7 Qa4 Kf8 Qd1 Ke8 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 e5 h4 e4 g4 f3 b6 c4+ Ka4 c3 b7 c2 g5 Qf8 h6 Qc8 g6 Qd8 h5 Qc7 g7 Qe7 h7 Qf8 h6 Nd7 b8N Qe7 Na3 Qf8 Nc4+ Ke7 d6+ Kf6 d5 Ra6 Nh3 g1N Nc6 Qf7 Nf2 Qe7 Ra3 Nf8 d7 Ne2 d8B Ne6 d6 Nc7 d7 Nb5 Bg2 Ng3 N6e5 Rd6 Rh3 Rd5 Bb6 Qf8 Bd2 c1N d8R Nb3 Bh1 Nd6 Bf4 Nd2 Rd3 Nb5 Qa1 Nb1 Qa3 Ne7 g8B Nc6 Re8 Nd8 Be6 Rg8 h8R Nf7 h7 Rg4 Rh5 Rh4 Bh6 Rh2 Rh3 Rg2 Rd8 Rg1 Rd7 Re1 Rd4 Qe7 Re8 Qf8 Bg5+ Kg7 Rd3 Rd4 Nc6 Rd6 Nb2 Rd4+ Qb4 Rd6 Bb3 Rd4 Bd2 Kf6 Bd1 Rd6 Ne7 Ke5 Bg5 Nd4 Nc6+ Kd5 Rc3 Nb5 Rdd8 Rd7 Nc4 Rd6 N6e5 Rd7 Bc7 Kd4 Qe7 Rd6 Rc2 Rd7 Rd2+ Kc3 Bb6 Rd6 Na3 Rd7 Rd3+ Kb2 Nac4+ Ka1 Bb3 Rd5 Bd1 Rc5 R8d4 Rd5
6k1/4BR2/2bb2B1/N1qB4/1NRn1PPQ/1R1P2BR/n2Nq1rr/K1qq4 w - - 0 1 illegal: No possible last move
KR1q2B1/3q1Pq1/B5N1/nRbr4/NP1nN1p1/2Q2R1N/2b2BPk/1r2R3 w - - 0 1 legal: proof: e4 f5 exf5 d5 c4 b5 cxd5 b4 a3 Kd7 axb4 Ke8 h4 g5 b3 a5 Ra2 g4 Ra1 a4 bxa4 Qd6 Rh2 Qh6 Rh1 Qg5 hxg5 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 Kf7 Ke3 h5 Ke4 e5 d4 c5 f4 c4 d6 h4 Kd5 c3 f6 Kg6 d7 Kh5 d8R c2 f7 e4 f5 e3 f6 e2 a5 e1Q a6 h3 a7 Kh4 g6 Kg3 g7 h2 Nh3 Qe3 Ra3 Nc6 Qf3+ Kh4 Nc3 Qf4 Be3 c1Q Ba6 Qg1 Ne4 Bd7 Bf2+ Qg3 Rb8 Nh6 g8B Bf5 Qc3 Qa1 Rb5 Na5 Re1 Bc5 f8N h1Q f7 Rc8 a8N Rd8+ Nd7 Bh7 Nb6 Nf5 Na4 Qf1 Rb3 Qd3 Ra3 Ra8 Ne5 Rd8+ Ke6 Qd2 d5 Bg6 d6 Nd4+ Kd5 Bh7 Neg5 Bc2 d7 Rh5 Ne4 Re8 Bg1 Qgd3 d8R Qg5 Rdb8 Qd8+ Nd6 Kg3 Bf2+ Kh2 Rb3 Qg5 Ne4 Qad1 Ra3 Qg7 Rb3 Bb6 Kd6 Bc5+ Kc7 Rg5 Ng6 Rd5 Rd8 Q3d2 Kb8 Qg5 Rc8 Qd8 Ka8 Re6 Rcb8 Rf6 Bh4 Rf1 Bf2 Rh1 Qa1 Qd7 Rf3 Rf1 Qc3 Qd2 Ree3 Rb1 Re2 Qg5 Re1 Qgd8
qk2K2N/5b2/BBR2Nb1/3N1q2/PQRn1R1P/q2r1p1B/P2N4/1B2q1b1 w - - 0 1 illegal: No possible last move
RB3n2/7n/BK1RPN2/1qpb3B/2Q2r1P/1N1NP1Rp/k4BR1/2nr2b1 w - - 0 1 legal: proof: c4 b5 h4 g5 f4 h5 a4 d5 cxd5 e5 fxe5 Qf6 axb5 Qf3 hxg5 h4 g3 h3 Na3 Qe4 Nb1 Qh4 gxh4 Bd7 Qc2 Be6 Qd1 Bc8 Kf2 Ke7 Ke3 a5 Kd4 f5 Kc5 f4 b4 c6 d4 f3 g6 f2 b6 a4 g7 a3 e6 a2 b7 Bd7 b5 Rh6 d6+ Kf6 b6 Ne7 g8B Ra4 d5 Ke5 Bf7 Nc8 Nd2 Ra8 Ngf3+ Kf4 Ne5 Ke3 Rh2 Rh5 Rg2 Rg5 Bh5 Rg4 Nd3 Ne7 Qb3 Ng6 Qc4 Rf4 Rb1 a1N Rb3 Bh6 Bb2 Be8 d7 Nf8 d8R Nh7 Rd6 Bf7 Ra3 Bg7 Nb3 Bf6 Bc3 Bg8 Be1 Bd4+ Kb4 c5+ Kb5 Nd7 b8N Ndf8 b7 Ke4 Nd7 Rd8 b8B Ke3 Nf6 Rd7 Nd2 Nb3 Kb6 Nc1 Nb3 Bf7 Ra4 Bg6 Ra3 Be4 Rc6 Bf3 d6 Bd5 Ra8 Ra7 d7 Ra1 d8R Rb1 Rcd6 Ra1 Rg8 Rb1 Bg2 f1Q R8d7 Ra1 Rdg7 Rb1 Bgf3 Ra1 Rg2 Rb1 Bg3 Ra1 Na5 Kd2 Nb3+ Kd1 Rg7 Bg1 e3+ Qe2 Bf2 Rb1 Qd4 Kc2 R7g3 Ra1 Qc4+ Kb1 Be8 Qf1 Bb5 Qe2 Ba6 Ka2 Ne5 Nd3 Bg4 Rd1 Bh5 Nc1 Nd3 Qc2 Qb4 Qc4 Qc3 Qa4 Qc4 Qb5+
1RB3b1/B1QN1b1P/n1r2PR1/2n1K3/4pq1P/N2k4/BpN3q1/2Rb1R1N w - - 0 1 legal: proof: e4 c5 g4 a5 b4 h5 bxa5 c4 gxh5 c3 dxc3 Nc6 c4 Nb8 c5 Qb6 Qe2 Qc7 Qd1 Qd8 e5 f5 Bf4 Ra6 Bc1 Rf6 exf6 b5 Bb2 Qc7 Bc1 Qd8 f4 e5 Ke2 e4 Kf2 Bd6 Ke1 Be5 fxe5 Bb7 Ne2 Ba6 Ng1 Bc8 Kd2 Kf7 Kc3 Ke6 Kd4 d5 c4 g5 h4 b4 a4 b3 a6 g4 c6 f4 c5 Kf5 h6 b2 a7 g3 a8R f3 h7 f2 a5 g2 c7 Ba6 c8R Qd6 e6 Bc4 a6 Ne7 a7 Ng6 c6 Bd3 c7 Bc4 e7 Qd7 e8N Be2 Qc2 Qb5 Be3 Qb3 Nf3 g1Q Na3 Bc4 Rc1 Nf8 Ne1 Na6 Rab8 Nd7 a8N Qg2 Nb6 Ndc5 Nd7 Qb4 Bd3 f1B Nd6+ Kg4 Bg1 Kf4 Nf5 Qbd2 Rg8 Be2 c8B Bh5 Rg7 Bf7 Rg6 Re8 Qc3 Re6 Nec2 Rc6 Ng3 Kf3 Ke5 d4 Bf1+ d3 Qa5 Qe3 Qc7 d2 Bd3 Ba2 Bc4 d1B Bf2 Qh6 Rf1 Bb3 Nh1 Qf4+ Kd4 Ba2 Bd5 Ke2 Bb3 Qff3 Ke5 Kd3 Be3 Ne6 Ba7 Nec5 Ba4 Bad5 Bb3 Bg8 Ba2 Bdf7 Ra1 Qff2 Rc1 Qf4+
1b5N/8/BkpR1QBB/npR1N1qN/2P5/rPNq2n1/2q2Pp1/1K1RR3 w - - 0 1 illegal: No possible last move
n1q1B2r/1R1N3b/KN1P4/1BP1P1NQ/nbRR2qn/B7/1bR1q1B1/4r1k1 w - - 0 1 illegal: No proof kernel
2kB2qN/P3b3/rrB1q1R1/1NR2P1b/R2QN1Pn/1B2r1K1/3b2n1/q3NB2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 a4 c5 f4 b5 Kf2 e5 g4 h5 a6 b4 g6 b3 a5 h4 g7 c4 d6 b2 a7 e4 f6 c3 d5 c2 f7 h3 a6 e3+ Kg3 h2 f5 e2 Nd2 b1Q Ne4 e1R Qd4 Be7 f8N+ Ke8 Bg5 c1B Nf3 Be6 Ng6 Kd7 Ra4 Nf6 g8B Rh6 Nh8 Kc8 Bf7 Re2 Ne1 Bd2 Bg8 Qa2 d7+ Kc7 Bf7 Qg8 d8N Nc6 d6+ Kc8 Nb7 Nd5 Bh4 Rb8 a8B Ne5 a7 Nf3 Bg5 Re3 d7+ Kc7 d8R Nf4 Rg1 h1Q Nbd6 Ng2 Bc6 Rb6 Ra8 Bd7 Bb3 Be8 Rb8 Ra6 Rb6 Bh5 Nb5+ Kc8 Bh4 Bc5 Bd8 Be7 Ba8 Qa1 Rg6 Rb6 Bc6 Qh2+ Kf2 Qe5 Rh1 Qed5 Kg3 Qde6 Rh2 Nf4 Re2 Ng2 Rf2 Nfh4+ Rf3 Re2 Rc3 Re3+ Kh2 Rb8 Bd7+ Kb7 Rg7 Qd5 Rc5 Ra6 Bc6+ Kc8 Rg5 Rbb6 Rg6 Re2 Kh3 Qde6 Kg3 Re3+
k3N1r1/3bPnP1/B1rNK3/BR1R2N1/5b1q/1BP1RQ2/3nn1nN/bnR5 w - - 0 1 illegal: No possible last move
1k2r2r/1rqn2R1/1NBP1PbN/1r2BbR1/3bnR2/5N1P/B1Q5/1KR2nB1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 e5 Kc2 b5 f4 c5 a4 Kc7 d6+ Kb7 h3 g5 a6+ Ka7 f6 c4 a5 e4 f7 b4 d7 g4 f5 e3 d5 e2 d6 e1R h6 g3 h7 c3 Nf3 g2 Bc4 g1R Ba2 Qb6 d8N Qb7 Be3+ Qb6 Na3 b3+ Kb1 b2 Nc4 Qc5 Nb6 Bh6 f8R Bg7 Nf7 Nf6 Nh6 Rg5 Bg1 Re8 Qc2 Nbd7 Rf7 Kb8 a7+ Kb7 Rf8 Rb8 a8R Ne4 Rg8 Bf6 Rg7 Qc7 Rh2 Bd4 a6+ Kc6 a7 Kb7 Rg8 Rg7 Rg2 Rf7 R2g5 Rfe7 Qf2 Re5 R8g7 Rb5 Kc2 b1B+ Kc1 Bd3 Qc2 Bc4 Rb1 Bf7 Rb4 Bg6 Kb1 Rhf8 h8B Rg8 Rf7 Rgf8 Be5 Rg8 f6 Rh8 Qb2 c2+ Kc1 Nf8 Rg7 Bcf5 Qb1 Nd7 Qb2 Rbd8 Rc8 Re7 Qc3 Rde8 a8B+ Ka7 Kb2 c1N Kb1 Ne2 Bc6 N2g3 Qc2 Nf1 Bb7 Qb8 Rc5 Qc7 Bc6 Rb8 Rc3 Ree8 Rc5 Bb2 Rd4 Rb7 Rcc4 Kb8 Rd1 Nec5 Rf4 Ne4 Rc1 Bd4+
1nN1N3/1P3b2/n2b2kN/2Pr3q/KB4Br/rPB4R/1RqrR1rN/2Q1B3 w - - 0 1 illegal: No possible last move
2r1q1Br/2b5/2Rb2RB/kbN2Pn1/P1RB1B2/nqRr2b1/2PN1N2/2K2Q2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 h4 e5 a4 d5 f4 Kd7 f6 Kc7 c6 b5 f7 b4 f5 d4 h6 b3 h5 d3 h7 b2 a6 Kb6 a7 g4 c7 e4 h6 g3 Rh4 g2 Ra3 Nc6 Nh3 g1B Nf2 Nd4 Rc3 Bd6 f8B Bd7 c8R Bgh2 R8c6+ Ka5 Be2 Qc8 Qf1 e3+ Kd1 d2 Bc4 Rb8 a8N Nb5 Nc7 Na3 Na6 Nf6 Bg8 Ne4 Nc5 Ng5 Rhc4 Bc7 Bd6 Qe8 Bf4 Rc8 Bd5 Rg8 h8B Bd6 Bhe5 Rh8 h7 Bc7 Rg6 Bb5 Bg8 Bg3 Bd4 Bh2 Ke2 d1R Rc6 Rd3 Nd2 b1Q Kd1 e2+ Ke1 Bg3 Bd6 Qe3 Nf3 Ne4 Bf8 Ng5 Bh6 Qb4 Bd2 Qe8 B2e3 Qd7 Nd2 Bgd6 Bf4 Qe8 Nde4 Rh3 Kd2 Qb3 Kc1 Rf3 Nd2 Rd3 Be6 Rg8 h8R Rf8 Rh7 Rh8 Bg8 Ne6 Rg7 Ng5 Rg6 e1B Nd1 Bh4 Nf2 Bg3
KQ3R1B/1q1NB1Bb/3RbP2/r6b/B2Pnr1N/4b3/2q1P1Rn/1N1n1N1k w - - 0 1 illegal: No possible last move
2Kn3N/r6R/R1rB1P1P/4N3/1bb1R1b1/PN2n1Nk/Bq2R1r1/QB4qr w - - 0 1 illegal: No possible last move
1r2qb2/Q3R1q1/1PNq4/rK5b/1B1Rn3/NrB2R1P/BRPB1r2/4Nnk1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 b4 Ke4 f4 d5+ Kc3 e5 b6 g5 b7 a5 h3 a4 b5 a3 Kb4 a2 b6 d4 f6 d3 f5 d2 h6 Ke3 h7 Kf2 f7 e4 f6 g4 Kb5 e3 c6 g3 c7 g2 Nf3 g1Q Ne1 e2 Na3 Qd6 Rb1 a1R Rb2 Nc6 b8N Na5 Nc6 Bg4 c8R Nc4 Re8 Rb1 Re7 Bh5 Bg2 Ra6 Bd5 Ne3 Ba2 Qg7 Rg1 Nf1 Rg4 Ra7 Rd4 Kg1 Re5 Be7 f8B Ra4 f7 Nf6 Re6 Rg8 h8B Ne4 Ng2 e1Q Qg4 d1R Bd2 Bg5 Re7 Bh6 Qd7 Qe3 Qb7 Re1 Qb8 Re2 Qa7 Rf2 Ne1 Ra6 Rd7 Ra4 Be7 Rb8 f8R Ra6 Rf3 Ra5+ Kc4 Qde5 Beb4 Q3f4 Rc7 Qe8 Re7 Qd6 Rdd3 Qg5 Bhc3 Bf8 Rd5 Qg7 Rd4 Rb5 Ba5 Rb3 Bab4 Ra1 Kb5 Qgf6 Bb1 Qh6 Nc4 Ra4 Na3 Qg7 Ba2 Ra5+
Nr3bB1/RqnNB1Pb/r1q3nq/2R5/1q2R1P1/R4B1K/N1Q1N2P/3rk3 w - - 0 1 illegal: No proof kernel
B1nqr2B/N7/1Rnb1RR1/B2Nr3/1P2RP2/kN1b1Pnq/3p4/1Kq2N1Q w - - 0 1 illegal: No possible last move
qb6/n2k1q2/R2r4/P1Rb2RQ/4B1r1/qNBpPB2/1R2nN1P/1nNK1N2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 a4 b5 c4 f5 e6 g5 a6 d5 h6 b4 e7 d4 c6 f4 c7 g4 e3 d3 c5 g3 h7 f3 a7 g2 c6 b3 Bb2 Nd7 Ne2 g1Q Nc1 Qg6 Be2 Nb6 Rg1 Qg4 Nd2 Qc4 Bc3 b2 Rg5 b1N Ndb3 Ba6 c8N Nd5 c7 Nf4 Nd6+ Kd7 e8N Qc6 c8R Ne7 Nc4 Qd6 Ncd2 Bc4 Nf1 Rg8 h8R Qa3 Nd6 Bd5 Ne4 Nc6 Nf2 Bd6 a5 Rg6 Rh6 Bb8 Ra2 Rd6 Rb2 Qg8 Qc2 Qh8 Kd1 Qf8 Bd4 Qh8 Qc5 Qe8 Bc3 Qe4 Nh3 f2 Bf3 Ne2 Re6 Bc7 Reg6 Rb8 a8B Na7 Re6 Rb4 Rf6 Bb8 Rc6 Bc7 Ra6 Bb8 Rff5 Qe8 Bb7 Rg4 Re5 Bc4 Bbe4 Qc8 Ref5 Qg8 Qe5 Bd5 Qh8 Qc8 Qh5 Qb7 Re5 Qa8 Ref5 Bc6 Rb5 Bd5 Rc5 Bg8 Ng3 Bc4 Bh1 f1Q+ Be1 Qf7 Bc3 Rc6 Bhf3 Rd6 Nf2 Be6 Nf1 Bd5
B1b1R1RN/2q2nN1/2b3P1/4b2B/k2NN2B/4PqB1/p2R1Pr1/1r1qQ1Kn w - - 0 1 illegal: No proof kernel
K2q1qBB/b4N2/3BP1B1/1r3P1q/2k1P3/1n1R1NpR/nRNr1b1Q/2Nb4 w - - 0 1 illegal: No proof kernel
1N3q2/1rn2PbN/4B1RB/5r1P/1kp3NK/n3R2R/4BP1r/Bb2nNqQ w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kd7 a4 Kd6 d4 c5 h6 b5 h5 e5 f6 g5 a6 e4 a7 b4 f7 g4 h7 b3 a5 g3 a6 e3 Ke2 g2 Kf3 b2 Kg3 e2 Rh3 e1N Nd2 b1Q Ngf3 c4 Be2 Nf6 Kh4 g1R Ra3 Be6 Nf1 Ng4+ Ng5 Rg8 h8B Nh2 Rae3 Qdb6 Nh7 Kd7 d6 Kc6 d5+ Kb5 d7 Ng4 d8N Ka5 d6 Bg7 d7 Q6b4 Nc6+ Kb5 d8N Qf8 Bd2 Rg2 Ne5 Rh2 Ndc6 Bf5 Bc1 Qa1 Qd5+ Ka4 Qh1 Bb1 Bd2 Nd7 Nb8 Nb6 Bc1 Nd5 Bd2 Nc7 Bc1 Nf6 Ng4 Nfd5 Bd2 Nb4 Bc1 Bd4 Bg7 Nbc2 Bh6 Bh8 Bb2 Na3 Be5 Qa2 Ba1 Kb4 Qc6 Qd2 Ng3 Qd4 Qh1 Qe5 Nf1 Qc8 Nd7 Rb8 a8B Rg5 a7 Rb6 Bd5 Qf8 a8R Rb7 Ra6 Bg7 Rg6 Rf5 Be6 Qe4 Nb8 Qg2 Be5 Qg1 Bd4 Qg2 Ba1 Qg1
3r2qB/2P1nP2/1pb1P2b/NBr5/1Kb3k1/R1N2R2/qQ1Nn1q1/B2B1RR1 w - - 0 1 illegal: No proof kernel
bn5N/3NkbBn/QKB2R2/3P1p2/Br3P2/rP2n2n/3RRq2/1NBNn3 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 Ke2 a5 Ke3 f5 f4 h5 g4 e5 g6 c5 b3 a4 d7+ Kf8 g7+ Ke7 g5 h4 d6+ Kf7 b6 h3 g6+ Ke6 b7 e4 Ne2 c4 Qd3 a3 Nec3 h2 Ra2 Rh5 Rd2 a2 Nd1 c3 Qa6 a1N Bb5 c2 Ba4 Qg5 d8B Qh4 Re1 h1B Bf6 Rh6 Ree2 Qe1 Be5 Nf6 g8R Nh7 d7+ Ke7 d8N Be6 g7 Bf7 Rf8 Rb6 g8B Rb4 Bg7 Ra7 Ba3 c1N Bb2 Nd3 Bc1 Bh5 Bd5 Nf2 Nf7 Nh3 Nh8 Qf1 Rf6 Bf7 Bdc6 Bf3 Qb6 Ra5 Bab5 Ra3 Ba4 Nd7 b8N Bg2 Na6 Nb8 Nc5 Bf3 Qa6 Bh1 Nd7 Bg2 Rd3 Nc2+ Kd2 e3+ Kc3 Qf2 Rdd2 Bh5 Bcb5 Bb7 d5 Bf7 Bc6 Ba8 Kd3 Rb7 Kc4 Rb6 Kc5 Rb4 Re1 e2+ Rd4 Rc4+ Kb6 Ne3 Rd2 Rd4 Rh1 e1N Rh2 Qg1 Rhe2 Qf2 Qa5 Rc4 Qa6 Rb4+
NR5q/3rBb2/4NBR1/1pK2P1n/1rrnb3/1PP5/Q2RB2k/r1r1N1RB w - - 0 1 illegal: No possible last move
2bnBbbQ/3Kb3/P1pPRN1q/bk1rR3/1Nr2B2/3P2n1/1BRB4/4N2N w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 g5 Kg4 e5 f4 b5 a4 b4 h4 e4 h6 b3 d6 Kc6 h7 e3 h5 b2 a6 e2 h6 e1B a7 Bg7 a5 Bd4 a6 Be6 Na3 b1B Bb5+ Kc5 d3 Bc4 f6 Bb2 Kf5 g4 f7 g3 f8R g2 Nc2 Qe7 Ra5 Qe2 Be8+ Kb6 Re5 c6 Nh3 g1B Nf2 Bb4 Ne1 Nd7 Rf6 Ba5 Bd2 Nc5 Rh2 Bba2 Qa1 Kb5 Rfe6 Nf6 Nh1 Rb8 a8N Nh5 Nb6 Be3 Nd5 Nb7 Nb4+ Bd5 Rg2 Ng3+ Kf6 Rf8+ Ke7 Rf5 h8B Qh5 h7 Nd8 Kd7 Qh6 Rh2 Rh5 f5 Bg5 f6 Rb6 f7 Be7 f8N Bc3 Ree2 Bg7 R2e5 Rh4 Qb2 Rc4 Bf4 Rb8 Rc2 Rb7+ Kc8 Rb6 Nd7 Bgf8 Nf6 Bb3 Kd7 Rb8 Re3 Bg2 Ree2 Bh3 Re5+ Kb6 Rf5 Qg6 Re3 Nb7 Ne4 Nd8 Bc3 Qh6 Bd2 Rc3 h8B Bg8 Bhe5 Rb7+ Kc8 Rc5 Bh8 Rc4 Qg7 Bg4 Qh7 Bh3 Bb2 Bg4 Nf6 Bh3 Nfd5+ Kc5 Qh8 Rb5 Nf6+ Kb6 Kb8 Rd5 Rh5 Bc8 Re6 Bb7 Rhe5 Ba8 Kc8 Bb7+ Kd7 Kc5 Rf5 Kb5 Rfe5 Bc8+
4Bbr1/B4n2/K4qnp/1PNB2NR/1Nb2P2/bQrP2R1/B1R4r/1r1Nk3 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 a5 f4 c5 b4 h6 g4 e4 d6 e3 d7 a4 b6 e2 Kb5 e1B f6 Ke6 g6 Kd5 f7 Ke4 g7 c4 g5 a3 g6 a2 b7 c3 Qb3 c2 Nc3+ Kd4 Nh3 Nf6 g8B Ng4 g7 Nf2 Nd1 Ng4 Ng5 Qf6 d8N Bc5 f8R Ra3 Rh5 Nc6 b8N Nge5 Nd7 Ne7 Bd5 Nf7 g8B Ng6 d3 Bc3 Be2 Bb2 Rb1 Bd6 Nc5 a1R Re8 Ra7 Re3 Be6 Rg3 Ba3 Rb2 Rb1 Bef3 Rb7+ Ka6 Bf8 b5 Re7 Bc6 Bc4 Bd5 Re2 Bd2 c1R Rc2 Rh2 Ba5 Rd2 Bb6 Re2 Be8 Rh2 Ra2 Rc3 Rc2 Nh4 Ba8 Ng6 Nc6+ Kd5 Nb4+ Kd4 Bh7 Rg8 Bd5 Ne7 Bf5 Ng6 Bfe6 Rh4 Rg1 Rh3 Ba7 Rh2 Nb2 Ke3 Rg4 Rd2 Nd1+ Ke2 Rg3 Ke1 Bg2 Rb2 Qa4 Rb1 Bf3 Bd5 Bh1 Bc6 Ba2 Rh2 Qb3 Bd7+ Bc6 Be6 Ba8 Bc4+ Bac6 Qd8 Bd5 Qf6+
1RQK1N2/RR3bn1/r1PNNBr1/bb2RPP1/5q2/5kr1/1p4nB/2N2r1B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Kd3 e5 Kc4 d5+ Kb5 h5 g4 h4 f4 e4 a4 b6 c4 d4 f6 Ke6 f7 h3 g6 d3 a6 e3 g7 h2 g5 Kf5 a7 Ke4 f5 e2 c6 e1R c5 d2 a5 Qf6 c7 Qd6 c6 Qh6 a6 Be6 c8N Bd6 f8B Nf6 g8N Qh3 Ra5 Qf3 Bg7 Bf8 Nh3 Bf7 Nc3+ Ke3 Nd6 Qg4 Nf4 Nbd7 Bg2 Rh6 Ne6 Ne5 Ne2 Qf4 Ne7 Rf1 Ng6 Nh5 Bf6 Ng7 Bf3 Be7 Ngf8 Nc4 Rg1 Rh3 Bh1 Rg3 Ba3 Bd8 Nc1 Kf2 Bab2 Bc7 Bbe5 Ne3 Qh5 d1B Qh8 Bd8 Rg2+ Kf3 Rb2+ Ng2 Rb4 Rb8 a8R Bc7 a7 Ba4+ Ka6 b5 Qg8 Re8 Kb7 Bb6 Rb1 b4 Rb8 b3 a8R Bb5 R8a7 Bd8 Kc8 b2 Rba1 Re7 Rab7 Bc7 Raa7 Ba5 Ra4 Rd7 Re4 Re7 Bd4 Rd7 Bg1 Re7 Re5 Rd7 Nc7 Re7 Kd8 Re6 Be7 Rg6 Bf6 Bc3 Nce6 Bb4 Nd3 Ra1 Nc1 Ra6 Qh8 Ba5+ Kd7 Qh4 Nh7 Bf1 Qc8 Qf4 Nhf8 Bb5 Ke7 Kg4 Kd7 Ne3 Bg2 h1R Bh2 Rf1 Bh1 Ng2 Ke7 Kf3 Kd7 Be1 Kd8 Ba5+
2Bb4/3b1RQ1/NrpP3R/BP5P/2nB4/1kNr1KN1/Nr4rR/qn2R1b1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 h4 Kd6 f4 Kc5 b4+ Kc4 d4 a5 h6 g5 f6 e5 f5 e4 h7 a4 h5 e3 b6 g4 d6 a3 b5 g3 d7 g2 b7 a2 f7 Nh6 d5 Ra6 f6 Bd6 f8R Rg8 h8B Ba3 f7 Nf5 Bd2 Rb6 Ba5 Na6 b8N Nd6 Bd4 Qf6 d8N Bd7 Nc3 Nc5 Na6 Nce4 Nc6 Nd2 Rh2 Nb1 Ncb4 c6 Qe1 Kb3 Qg3 Rg4 Rh8 Nc4 f8R Qg7 Kf3 e2 Rf6 e1R Rf7 Re2 Rh6 Rb2 Nge2 g1B Bh3 Rg5 Qe5 Rg2 Ng3 Qh8 Qg7 Qa8 Nd3 Be7 d6 Bd8 Bf5 Nba3 Rd1 a1R Re1 Rd1 Ndb4 Nb1 Nba2 Be8 Bc8 Bd7 Bb4 Qa7 Nb8 Qa4 Ba5 Qa3 Na6 Qa4 N2b4 Qa1 Nba2 Rd3+
1r2b2N/k1rQ2NB/P2n4/1rP3P1/2R1p2R/1bRqnN1B/1K1b1B2/1NbB4 w - - 0 1 illegal: No possible last move, all moves rejected
R4r2/1R1K1rP1/b1n3R1/1nbNb1BQ/2P4B/B1pk2b1/B3N1P1/q2nR2N w - - 0 1 illegal: No proof kernel
1B1q1kB1/1K2q3/N1Nr1B2/2R2p2/1BNbP1rR/1Qn2P2/1RbP1n2/3r1r1N w - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 h5 gxh5 e6 dxe6 Be7 a4 Bc5 axb5 Bf8 h4 g5 b4 a5 e4 c5 Ke2 f5 Ke3 c4 f3 a4 b6 c3 b5 a3 h6 a2 h5 g4 h7 c2 e7 g3 h6 g2 b7 Qc7 Kd4 Qc3+ Kd5 Qf6 b6 Ra3 Bc4 Rc3 Rh4 Nc6 b8B Ra3 b7 Kf7 e8N Bc5 Nh3 g1Q Nf2 Bd7 Nc7 Qe7 Nh1 Bd4 Na6 Rd3 Na3 Na7 Rb1 a1R Rb2 Nb5 Bb3 Ke8 Nc4 Qgg5 Ba2 Be6+ Kc6 Nf6 Bb3 Rf8 h8R Nc3 h7 Ng4 Rg8 Rb1 h8B Nf2 Bf6 Qd8 Rg7 Rg8 Rc7 Kf8 Ba2 Be5 Kb6 Rd6+ Ka7 Qe7 Rc5 Bd4 Na3 Qe3 Bc7 Rc6 b8N Rg4 Rb4 Qd3 Kb7 Be5 Rb6 Bd7 Bg8 Re6 Bb2 c1R Nc4 Ba4 Nc6 Qdd8 Ba3 Rd6 Rb2 Bd4 Bb4 Ra1 Qc2 Rf1 Qd1 Bb3 Qc2 Rad1 Qd3 Na2 Qc3 Bc2 Qb3 Qe5 Bb8 Nc3 Ng3 Qe6 Nh1 Qee7+
Kqk2rN1/1RN5/4n1B1/1p2qQ1n/nP6/2n1bB1R/1P1B1P1N/1R1RNbr1 w - - 0 1 illegal: No possible last move
Q3Rb1R/4q1bn/r6P/RB5q/P1P1pNb1/n2NN1RN/1bKB3k/1B3r2 w - - 0 1 illegal: No possible last move
1rN5/N2QBB2/3p1P2/r4q1R/NPq2b2/3PB3/krRrnn1B/1R2bK1N w - - 0 1 legal: proof: b4 h5 g4 f5 gxh5 b5 e4 Kf7 exf5 Ke8 c4 Bb7 cxb5 Bc6 Bg2 Bd5 Bf1 Bb3 axb3 Rh6 Ra6 Rh7 Ra1 Rh8 f4 Kf7 h4 c5 h6 a5 b6 e5 h7 g5 f6 Ke6 h5 Kd5 f7 a4 b7 a3 b5 e4 h6 g4 f5 a2 b4 g3 f6 e3 b6 c4 Rh2 c3 Nh3 c2 Nf2 e2 Nc3+ Kc4 Nh1 Kb3 Na4 Bd6 f8B g2 Be7 Nc6 b8N g1R b7 Nd4 Nc6 Rb8 Na7 Bf4 Rg2 Qa5 Rb1+ Kc4 Rf2 a1R Rh2 Rd8 b8B Qf5 Rh5 Rg2 Be5 Bg5 Bh2 Rf2 Bg2 Bf4 Bh3 Ra2 Bg2 Rb2 d3+ Kb3 Bd5+ Ka3 Be3 c1Q Bf7 Qc4 Qc1 d6 Qc2 Qa6 Qc7 Rb8 Qb7 Rg2 Qd7 Rg5 Kf2 e1B+ Kf1 Rgg2 Nc5 Qc4 Na4 Qfb5 Rc5 Rgd2 Rc7 Ka2 Rc6 Qb3 Rc2 Q3c4 Bf8 Qh5 Qc6 Ne7 Qd7 Rg8 h8N Nec6 h7 Rg5 Ng6 Ne5 h8R Ng4 Ne7 Ra5 Nec8 Nf2 Be7 Qf5 Rh5 Ne2
7r/1R1P3k/pn1r4/1q1NB1B1/1b2RrR1/3P1bKB/RQ1n3P/B1qN1rN1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 Kf2 e5 b4 c5 d3 g5 h6 g4 d6 e4 b6 c4 b5 c3 b7 a6 f6 Kg6 b6 c2 f7 e3+ Kg3 e2 d7 e1R f5+ Kh7 f6 Ne7 Bh3 Rg8 Nc3 Nbc6 b8B Re2 b7 Na5 Be5 Kh8 b8R Rg6 h7 Nc4 Ra2 Qb6 Rb7 Nd5 Qd2 Re4 Nd1 Bb4 f8N Rf4 Ne6 Qb5 Nc7 Ndb6 f7+ Rgf6 Qf2 Nd2 f8R+ Kg7 h8B+ Kh7 Qd4 Rd6 Rg8 Rb8 Qb2 Ra8 Rb8 Bb7 Nd5 Bc6 Rb7 Rb8 Kh4 g3+ Rg4 g2 Kg3 Rd8 Bhf6 Rh8 Bg5 Ndc4 Be3 c1Q B3d4 Nd2 Ne2 Qbc5 Re1 Q5c4 Ng1 Qb5 N5c3 Be4 Nd5 Bf3 Re4 Nb3 Qe2 Nd2 Ba1 Rf7 Qf2 Rf4 Ne2 g1R+ Qg2 Re1 Ng1 Rf1 Qe2 Nb1 Qb2 Nd2
4q2k/1Q1B1bnr/PB6/1N3r1p/qN2N2P/1R1RBP1n/R2K3R/1Nnq2r1 w - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 e6 b4 Qe7 bxa5 Qd8 g3 Bd6 Ba6 Ne7 Bf1 Bf4 gxf4 Ng8 d4 Kf8 a4 c5 h4 h5 d6 g5 a6 Kg7 a5 b5 f3 b4 a7 e5 d7 c4 f6+ Kh7 f7 b3 f8R b2 a6 e4 f5 c3 d5 g4 d6 c2 f6 e3 f7 g3 Qd5 e2 Be3 c1N Bh3 g2 Rh2 Nc6 Ra2 Nf6 Kd2 Ne5 Qb7 Qe8 d8R Ned3 Bd7 Nf4 Nh3 g1R Nf2 Nh3 Ne4 Rb8 a8N e1Q+ Kc2 Qb4 Nc7 Qb3+ Kd2 Qa4 Nb5 Kg7 Bb6 Rh7 Rh8 Ra8 Be3 Ra7 f8N Ra8 Ng6 Ra7 Ne7 Ra8 N1c3 b1Q Nc6 Ra7 Rf8 Ra8 Rf7+ Kh8 Nb4 Qa1 Nb1 Rb8 Bc6 Be6 d7 Bd5 Re7 Bf7 Re5 Rc8 Rc5 Rb8 Rc3 Rc8 Rb3 Rc7 Bd5 Rc5 Bc6 Re5 Rb8 Rf5 d8B Qd7+ Rd3 Ne8 Bdb6 Qc8 Raa3 Ng7 Ra2 Qe8 Bd7 Ne2 N1c3 Qf1 Nb1 Nc1 Rc8 Ng5 Rcc3 Nh3 Rb3 Qd1+
3nB3/1n3NK1/Q1NpRB1b/B1RP1P2/2R1P1rr/2n5/1r2r1k1/qBNnR3 w - - 0 1 illegal: No proof kernel
b1Rb1k1K/B2n4/R3pN1P/1pP3R1/1q1BB3/2rRNPn1/2B2n2/1N1Qb2r w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Kc3 d5 Kd4 b5 Ke5 g4 c4 e6 h4 g3 a4 g2 h6 d4 h5 d3 c6 d2 f3 Rh7 a6 Qd7 c7 Qf7 a7 Be7 f6 Ba3 a5 Qg7 a6 Bb4 Bd3 Bb7 c8R+ Kf7 Ra3 Bd5 Nh3 g1B Nf2 Qg4 Bc2 Be4 Rd3 Qg6 Ng4 Be7 Ne3 Rg7 h7 Bd5 h8B Qg4 h6 Bc6 Rh5 Bd5 Rg5 Bd8 c5 Ke8 f7+ Ke7 f8N Qb4 Nd7 Bf2 Nf6 Be1 Bb2 Kf7 Bd4 Rg6 Bg7 Ne7 Bf8 Nf5 Bd6 Rg7 Bc7 Kf8 Bb6 Rc7 Ng8 Re7 Kf6 Rd7+ Kg6 Ng3 Nf6 Rd6 Kh7 Nd7 Kh8 Be4 Qc1 d1N Qd2 Nf2 Qd1 Rb8 a8B Rd5 Bb7 Ra8 a7 Rf5 Bd5 Rf4 Bc6 Rh4 Bb7 Rh1 Bd5 Rb8 a8R Rb7 Ra4 Ra7 Ba8 Ra6 Ba7 Bd5 Ra2 Ra3 Bc6 Rc3 Ra6 Bc4 Be4 Bd5 Bf5 Bc6 Be4 Ba8
R2B1NNb/3PrNP1/4QP2/1NppRbr1/4n2q/3k4/B3nK2/r1n1BR1R w - - 0 1 illegal: No proof kernel
2r5/1Pp3P1/2BbB1R1/3PR1n1/rBKRNn2/b3Q1q1/1p3BbN/Nkn3N1 w - - 0 1 illegal: No proof kernel
r2Bb2R/kp2P1RN/2nB3Q/1PNB1bN1/6PK/np1n2NR/5qB1/4r2b w - - 0 1 illegal: Other
1q1n2B1/4B3/BN4Nq/2R1N2k/1pKbpP1P/q2n2R1/P2Bbr1R/3rQR2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kd3 e5 h4 g5 f4 b5 a6 c5 f6 b4 d6 g4 d7 g3 h6 Kg6 a7 e4+ Kc4 g2 d4 Rh7 d5 Na6 f7 Ne7 d6 Nc7 Bd2 Bg7 f8R Nc6 Nf3 g1Q Nc3 Bb7 Na4 Kh5 Rg8 Ne6 Rh2 Qgg5 Nb6 Bd4 Qe1 Rg7 h7 Qb8 h8N Ncd8 Ng6 Qh6 Nfe5 Bc6 Rb1 Ba4 Bd3 Bd1 Ra1 Be2 Rc1 Nb7 d8B Rc7 Be7 Nbd8 d7 Rc8 Kd5 c4 Rc2 c3 Ba6 Nc5 Rc1 Nc6 d8R Nd3 Kc4 c2 Rd5 Nd8+ Rc5 Rc7 Qf2 Rc8 Rf1 Rc7 Qe1 c1Q+ Kb3 Qa3+ Kc4 Rd7 Rg7 Qc7 Rg8 Rc8 a8B Qb8 Bd5 Rc6 Rg7 Rcd6 Bg8 Rd5 Nc6 Rg5 Nce5 Rg2 Nf8 Rd5 Rg3 Rf2 Nfg6 Bc3 Rc6 Rd6 Rc7 Rc6+ Kd5 Bd4 Rc8 Rc1 Rc5 Rb1 Kc4 Rd1
bR1q3k/1BKNB1r1/1B1Q2r1/1p2p1N1/2RPP2N/P1b2nBR/N3n3/q6b w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 Kf2 c5 Kg3 f5 Kf4 Kf7 Ke5 Kg7 e4 e6 h4 c4 h6+ Kh7 h5 f4 a3 f3 a6 f2 a7 b6 d6 c3 d7 c2 Nf3 Na6 Nh4 Qe7 d8B Nb4 Nc3 Qf7 Rh3 Na6 Na2 Qb7 Be7 Nc5 Kd6 Nd7 Ba6 Rb8 a8N b5 Nb6 Qa8 Bb7 f1B Kc7 Ne5 Nd7 Nf6 g6+ Kg8 d3 Bg7 Bf4 Nf3 Bg3 Bg2 Rc1 Rh7 Qd2 Bh8 g7 Bh1 Qf4 Nd4 Qd6 Ne2 Ba6 Rb6 Bb7 Kf7 g8N Rg7 h7 Ng4 h6 Ne5 Ngf6 Nf3 Qc5 Rg5 Qd6 Bg7 h8B Rg4 Ba6 Bb7 Nh7 Kg8 Ng5 Bc3 Bd4 e5 h7+ Kh8 Bc5 Qf8 d4 Ba8 Bb7 Ra6 Bb6 Qf6 Rb1 c1Q Rb4 Qa1 Rc4 Ra7 Ne6 Rg6 Ng5 Kg7 h8R Qf8 Rh7+ Kg8 Rg7+ Kh8 Rf7 Qg8 Rf5 Qd5 Rf8+ Qg8 Rc8 Qd8+ Kb8 Rg7 Qc6 Ra6 Bbc5 Qe8 Kc7 Ra7 Rb8 Ra6 Qe6 Rd6 Bb6 Qf8 Qd5 Rdg6 Qd6 Qd8+
3QRKbR/1Rb4r/qB3NkP/2q1nnPN/4Bq1r/pR2p3/1B5P/4BN2 w - - 0 1 illegal: No proof kernel
1K1Q4/5qR1/1Np1B1N1/b1N1B1N1/1rn2P2/2P1nB1n/rp1qRP2/b2R1Bk1 w - - 0 1 legal: proof: b4 e5 d4 g5 dxe5 f5 g3 a5 bxa5 f4 Nf3 g4 Ng1 b6 gxf4 g3 h3 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Qh4 Qd5 Qg5 Qd1 Qd8 Kd2 Kf7 Kd3 Ke6 Kd4 d5 e4 h5 a4 h4 g5 h3 g6 h2 a6 g2 g7 b5 a5 b4 a7 b3 a6 Rh3 Nd2 Nf6 g8N Bg7 Kc5 d4 Ne7 d3 Bb2 Nbd7+ Kc6 Nb6 Kb7 Nh7 Ng6 Nc4 Ngf3 Ng5 Rg1 h1Q Rc1 Rh6 Rb1 Nh3 Ng5+ Kd7 e6+ Kd6 e5+ Kd5 Nde4 d2 e7 c6 e8R Rh7 e6 Qf6 e7 Qf7 Nc5 Bd4 Qc1 d1N Qd2 Nde3 Rd1 Rb8+ Kc7 Rb4 a8B Rg7 a7 Rg8 Nd3 Bb6+ Kc8 Ba5 Bb7 Rf8 a8N Rg8 Ne6 Ke4 Ndc5+ Kf3 Qd8 Rh8 Nb6 Rh5 Ba8 Rd5 Bb7 Rd2 Kb8 Re2 Bc8 Rd2 Bd3 Re2 Rgf1 g1B Be5 Kg2 Ng5 Bh2 Be6 Bg3 Rfe1 Rd2 Bf1+ Kg1 Rg8 Bh4 e8B Qd5 Rg7 Qd4 Re2 Qd5 Nh7 Bf6 Ng5 Qd4 B8d7 Qc3 Bg4 Qd3 Bde6 Qdd7 Bc7 Ba1 c3 Ra2 Bf3 b2 Be5 Qd2
1NN1RB2/2Q2r2/1p2P2r/N1n1RPBB/qbq1PR2/6kb/3Nr1pn/4K1R1 w - - 0 1 illegal: No proof kernel
k1b1BKR1/4q2p/3B3n/BP3nrR/6P1/1NbNp1P1/Qr1BR1q1/1bR2N2 w - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 g5 a4 f5 exf5 g4 axb5 g3 hxg3 Bg7 g4 Bf8 Ke2 d5 Kf3 Kd7 Kf4 Kc7 Kg5 Kb7 c4 a5 b4 e5+ f6 e4 f4 e3 f5 a4 g3 d4 b6 a3 c6+ Ka6 c7 Kb7 c5 d3 c6+ Ka6 b7 Ka7 Nh3 a2 Nd2 Nh6 Nf2 Nd7 b8N Nb6 Qa4+ Ba6 c8R Qd4 f7 Qd6 c7 Bg7 f8B Kb7 f6 Ka7 f7 Be5 Nc6+ Kb7 Rh5 Qd4 Bd6 Rb8 f8B Qb2 Na5+ Ka7 Nab3 Ka8 b5 Nd5 Bg2 Bc3 Nf1 d2 Nd3 d1B Bd2 Bc2 Re1 a1Q Re2 Bb1 Qa2 Rg8+ Bg7 Rd8 Be4 Rg8 Bg6 Ne7 Be8 Nef5 Rd8 Qa3 c8R Q1b2 Rc6 Rf8 Bge5 Rg8+ Kf6 Rc8 Bc7 Qb4 Ba5 Rg5 Ke6 Qe4 Kd7 Qa3 Bd6 Qg2 Rc5 Bb2 Rc1 Bc3 Bg6 Bb7 Rg8 Rf8 Be8 Bc8+ Kd8 Rf6 Bg6 Rf7 Ke8 Rc7 Bf7 Rc4 Kf8 Rb4 Nd4 Rb2 Nb3 Qb4 Bg6 Qbe4 Be8 Qe7+
2qNN1b1/4RP1k/R1qp2nN/2BRPpB1/B7/Q1br1R2/2P2nKr/1b1B4 w - - 0 1 illegal: No proof kernel
NKR3b1/P1Bnr2p/2NB2R1/1pP4r/2R5/rNnBP1Q1/2qbB3/1kq2N2 w - - 0 1 illegal: No proof kernel
4Nkb1/B2nb3/1Pbp3N/2PRr1Np/B2K2QP/1nr2b1R/4q1B1/2BR1N2 w - - 0 1 illegal: No proof kernel
B2nR1BN/B1bR1np1/6b1/1p6/NN1P1N1B/QK3P1q/P6b/b2krr1R w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kd7 f6 Kd6 f3 Kc5 f7 Kd4 d6 b5 d7 c5 h6 e5 a6 c4 h5 c3 a7 c2 h7 e4 h6 e3 Bc4 e2 Nh3 Be7 f8B Na6 Nc3 Nb8 Nf4 Bd6 Be7 Bc7 Bh4 Nc6 Na4 Bb7 d3 Qc8 d8N Qh3 Kd2 Rc8 Ba3 c1B+ Kc2 Ke3 a8B e1B Kb3 Bc3 Bc5+ Bd4 Qg1+ Kd2 Ba7 Rb8 Rb1 Ba1 Qc5 Bcb2 Rbf1 Bbe5 Qa3 Bc8 d4 Bf5 Rc1 Bg6 Rce1 Bed6 Re7 Be5 Rd7 Rb6 Nd5 Bh2 Ne6 Nd8 Nef4 Re6 Nb4 Re1 Bcd5 Kd1 Be6 Ne7 Bed5 Re8 h8N Nc8 h7 Rf1 Bg8 Nd6 Bc4 Re7 Nf7 Re2 h8R Re4 Re8 Re5 Nh8 Ree1 Bg8 N6f7
5q1b/PrB2QR1/b3pRn1/n3P3/PpNqBRBN/K2b3n/1B3R2/4k2N w - - 0 1 illegal: No possible last move
4nBR1/1Rb3P1/q4p2/BBRp2b1/N2QrP2/1KN2B2/2rPq1bk/1NR3r1 w - - 0 2 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 g4 e5 Nc6 h3 Na5 hxg4 Nc4 g5 Nd6 exd6 Bf5 Ra2 Bd7 Ra1 Bc8 g4 Kd7 f4 Ke6 c4 a5 c6 h5 c5 f6 g6 h4 c7 h3 d7 h2 g7 a4 g5 Kf5 b6 e5 c6 e4 b7 a3 b8R a2 g6 e3 Qa4 Kg4 Kd1 Kg3 Kc2 e2 Rb7 e1B Ba3 Qe8 d8B Bd6 Kb3 Nh6 g8R Bh3 c8N Bc7 g7 Qe2 Bf8 Nf5 Qd4 Ra4 Nb6 Nd6 Bg2 Rc4 Na4 Ne8 Be4 Bg2 Bf3 Bb6 c7 Rc2 c8B Bc7 Bh3 Rh5 Bhg4 Re5 Bd7 Re4 Bb5 Bf2 Nh3 Be1 Ng5 Bf2 Rc1 h1R Nbc3 Rg1 Nb1 Re5 Ne4+ Kh2 Nec3 Bh4 Bc5 Re4 Bf8 Bb8 Ba5 Bg5 Na3 Bd6 Rab1 a1Q Rb2 Bb4 Nab1 Bd6 Rc7 Be5 Rc5 Bc7 Bb6 Qd3 Bd7 Bh6 Kb4 Qe3 Rb3 Rd1 Nb2 Qa8 Ba5 Qe2 Nba4 Rf1 Ka3 Rd1 Rb7 Qaa6 Bb5 Bg5 Kb3 Rg1
BRr5/PN2pq2/Nn2B1qB/R3P3/4nqPN/2n1Rb2/p1RB1r2/2QK2k1 w - - 0 1 illegal: No proof kernel
4rbQr/2n1R3/q2N1q1N/1Rp2BRq/1B6/5PP1/1NPKn1pn/1k1BB1R1 w - - 0 1 illegal: No extended proof kernel
qrrNB1qk/p3B1b1/4N1r1/1P3Q2/PN1R3p/1Kb5/1P1R1RR1/B2bn2B w - - 0 1 illegal: Other
N2r2Nr/3bp2k/Rb2B2B/Q2p2PP/1K1P1n1B/2q4B/q1R1R1N1/4b1bN w - - 0 1 illegal: No possible last move
BB4k1/b1R3rp/bbR1qB2/1Nbn3P/p1r1BP2/3R2PN/1NN5/K1q2Q2 w - - 0 1 legal: proof: f4 d5 a4 g5 c4 b5 cxd5 f5 axb5 Nd7 fxg5 f4 e3 f3 Bd3 Nc5 Bc4 Ne6 Bf1 Nf4 exf4 Qd7 Nc3 Qd6 Nb1 Qd8 h4 Kf7 d4 a5 Kd2 c5 Kc3 e5 b4 c4 Kb2 f2 g6+ Kg7 d6 e4 g3 e3 d7 a4 b6 e2 h5 e1B b7 Qc7 b8N Qd6 d8N Qc5 b5 Bd6 d5 Bb4 b6 Bg4 b7 Nf6 Bg2 f1Q Ndc6 Bc8 Be4 Qe2+ Nd2 Qcf2 Na6 Qd3 b8B Rd8 Qf1 Rg8 Na7 Be6 Nb5 Bbc5 Nb4 Bg4 Nc2 Bc8 Nh3 Bc7 d6 Qd5 d7 Qf3 d8R Qe6 Rd3 c3+ Kb1 Qf2 Bb2 Qg1 Nc4 Ba6 Rh2 Kf8 g7+ Kf7 Ra3 B7b6 Ka1 Nd5 Rh1 Rc8 g8B+ Kf8 Bf7 Ra7 Be8 Rcc7 Bc6 Kg8 Ba8 Rc6 Rh2 Rg7 Re2 Ba7 Re1 Bcb6 Rc1 Qc5 N2e3 c2 Bf6 Rcc7 Nb2 Qc3 Rb3 Rc4 Ra3 Qe1 Rac3 Qd2 Rb1 c1B Nc2 Rb4 Rc7 Rc4 Rc6 Qe1 Rc7 Bce3 Rc6 Bec5 Rbd1 Nc7 Rd7 Qe3 R1d3 Nd5 Rdc7 Qc1+
5rN1/2pK1R2/1pbnP1BN/4BNk1/3n2B1/r1PPnb1Q/3b3R/2NnRB2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 e4 d5 exd5 e4 b4 Qe7 bxa5 Qe5 fxe5 Bf5 Qe2 Bd7 Qd1 Bc8 Kf2 Ke7 Kg3 g5 a4 f5 h4 b6 d3 e3 c3 g4 Kf4 e2 a6 e1N a5 g3 h6 g2 a7 Rh7 h5 Kf7 d6 Nd7 a6 Be7 Nf3 g1N Rh2 Nb8 d7 Bh4 d8N+ Ke7 Nc6+ Ke6 Nfd4+ Kf7 Qg4 Be7 Qh3 Ngf3 Nd2 Nf6 N2b3 Bc5 Ne7 Ne4 Ng8 Rh8 h7 Bb4 h6 Kg6 e6 Nh4 Ke5 f4 Kd5 f3 Nf5 f2 Bf4 Bc5 Be5 Neg2 Re1 Kg5 Nc1 Nd7 Kc6 Be3 Ng7 Ndf6 Nf5 Rb8 a8B Ng4 a7 Nd6 Bb7 Bd2 Ba8 Ba6 Kd7 N2e3 Be4 Rf8 a8B Nd1 Bf3 Nge3 Bg4 Bc4 Be4 Ra8 Nd4 Ba2 Bg6 Bd5 Nf5 Ra4 Nge7 Rc8 h8N Ra3 h7 Bf3 Ng8 Re8 Bd4 Rf8 Nf7+ Kf4 N7h6 Kg5 h8R Bc6+ Ke7 Nf3 Be5 Nd4 Rh7 Bf3 Rf7 Bc6 Bg2 Bf3 Kd7 f1B Bg3 B1e2 Bf1 Ba8 Be5 Bef3 Bh7 Bae4 Bg6 Bc6+
3Nk1b1/BBR1B3/n2B2p1/1K2p2Q/3qRbNp/r1nPP3/1RrR2P1/2r3N1 w - - 0 1 legal: proof: f4 b5 h4 e5 c4 d5 cxd5 a5 a4 f6 axb5 g6 f5 Ra6 h5 Rc6 h6 Re6 fxe6 Qd6 Nh3 Qd7 Ng1 Qg7 hxg7 Kd8 Na3 Ke7 Nb1 Ke8 b4 c5 e3 h5 Ke2 a4 Kd3 h4 Kc4 f5 e7 a3 b6 a2 b5 f4 b7 f3 d6 f2 d7+ Kf7 d8N+ Ke8 b6 Be6+ Kb5 c4 Qh5 c3 Ba3 c2 Nc3 c1Q Nd1 Nd7 b8B Bh3 b7 Qc2 Ba7 Rh7 b8B Nc5 Bd6 Nf6 g8R Qc1 Rg7 Na6 d3 Bf5 Be2 f1R Bf3 Qc3 Bb7 Qd4 Nf2 Rc1 Ng4 Nd5 Rb1 a1R Rb2 Bc8 Rf7 Rc2 Rf4 Rac1 Re4 Be6 Bab4 Bh6 Bbc5 Kd7 e8R Bf4 Be7 Bg8 Bcd6 Rf7 Rf8 Rf6 Rf7 Ke8 Rg7 Bh6 Rf7 Rff1 Rf2 Bf4 Rd2 Ra1 Rh3 Rfc1 Rf3 Ra3 Rff2 Rcc3 Rdc2 Rc8 Rc7 Rc2 Rd2 Rc1 Rd7 R8c2 Rc7 Nc3+
6rb/nRq1R1RB/N2QP1p1/1bB1NbRB/B4p1k/7p/1nr2PPK/3N4 w - - 0 1 legal: proof: d4 b5 b4 e5 dxe5 c5 bxc5 g6 h4 b4 h5 b3 h6 Bg7 axb3 Bf8 b4 Qf6 b5 Qg7 hxg7 Bb7 Nc3 Ba6 Nb1 Bc8 c4 Ke7 e4 a5 b6 d5 b7 f5 e6 Kf6 c6 h5 e7 a4 e8R a3 e5+ Kf7 c5 f4 e6+ Kf6 c7 Kg5 c6 d4 Nf3+ Kg4 Be3 d3 Re7 a2 Be2 h4 O-O d2 Bc5 h3 Nc3 Bd7 c8R Na6 b8N Nb4 c7 Nd3 Ne5+ Kh4 Kh2 Bb5 Na6 Nb2 Bh5 Ra7 Rb1 a1Q Re1 Qa5 Re3 Qb6 Rg3 Ra8 Rd8 Rc8 Rdd7 Qd6 Rg5 Qc6 Qe2 d1B Qd2 Bg4 Qd6 Bf5 Nd1 Qb6 Re8 Ne7 g8B Qb8 Bh7 Nc6 Ree7 Na7 Rg7 Rg8 Rde7 Re8 c8B Qc7 Bd7 Rc8 Ref7 Be7 Bc6 Bf6 Re7 Bc4 Ba4 Bb5 Rgf7 Bh8 Rg7 Qd8 Bb4 Rc2 Bc5 Nd3 Rb3 Nb2 Rb4 Qc7 Rb3 Bc6 Rb7 Bb5
4N3/3k1n1N/1rpB3B/2b1rRn1/bbp2N1p/2Q1RPP1/3qPK2/1B3RNR w - - 0 1 illegal: Other
1r1BN1nQ/b5P1/4p1B1/P4PK1/kqR3RN/2Rpn2p/1b1NB2N/4Rbr1 w - - 0 1 illegal: No proof kernel
1br2n2/3bp2B/R1Nb1k1N/1QrB1p1R/N1pPP1R1/n5P1/1q5B/2K3NR w - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 b5 a4 Nc6 axb5 Qd7 f4 Qd6 fxg5 Qg3+ hxg3 Nb8 e4 f5 b4 Kf7 d4 a5 Kd2 h5 b6 c5 d6 h4 d7 a4 d8R a3 g6+ Kf6 b7 a2 b5 h3 b6 h2 g5+ Ke6 g7 Kf7 g6+ Ke6 Qb3+ Kf6 Qb5 Nd7 b8R Nh6 g8B Nf7 g7 Ra6 b7 Rc6 Bc4 Nfe5 Bcd5 Nc4+ Kc2 Rc7 Be3 Na3+ Kc1 c4 Nc3 Rc5 Bh7 Rg8 Ra8 Rh8 Rb1 a1B Na4 Bc3 b8N Ba5 Ra1 Bc7 Nc6 Bd6 Ra2 Bb8 Rf2 Bd6 Rf4 Rg8 Rg4 Bb8 Nh3 Bd6 Ra6 Bb8 Rd1 h1Q Bg1 Qg2 Bh2 Rh8 Rh1 Qb2+ Kd1 Ne5 Re8 Bd7 Ng1 Ng6 g8N+ Kg7 Nh6 Kf6 Ra7 Bg7 Ra6 Bd6 Rg8 Nf8 Rh4 Bb8 Rh5 Bd6 Nf7 Bh6 Rg4 Bhf4 Nh6 Bb8 Qb3 Bfd6 Qb5 Ng6 Nb4 Rhc8 Nc6 Qb3+ Kd2 Nf8 Kc1 Qb2+
2N1q3/3PN3/Q1K1k3/BPRNn3/1B4Nr/RP4bn/rpp1Bpb1/B3b1R1 w - - 0 1 illegal: No proof kernel
k4bNb/p4RN1/5B2/P1R2K2/nB3Q2/1nr4P/nP1p1RRp/r3qNNB w - - 0 1 illegal: No proof kernel
1BB4n/2R2rPN/N2RK1Rb/npP2N1r/Qp1B1q1P/p5Rb/6q1/5kB1 w - - 0 1 illegal: Other
q2N2QR/kPB5/p2B3P/2p2Kp1/1bq2nBP/RbN5/NR1r1r2/1B3nR1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 Kc7 d4 Kb6 b4 f5 h4 g6 e4 a6 d6 Be7 e6 Qe8 d5 Nf6 e5 Qg8 h6 Qf7 d7 Qg7 d8N Qh7 d6 Ka7 d7 Ng4 Nc3 Nh2 Be2 Ng4 Qd5 Nf2 Ra3 Bb7 Bg4 Bf6 e7 Kb6 e8B Nd1 e6 Rf8 e7 Nc6 Qg8 Nd4 Na2 Qh8 Ne2 Bd5 Rg1 Bb3 Nec3 Ne3 Bf7 Ra7 e8R Nf1 Re2 Ra8 Rb2 Ka7 Bc4 Bg7 Bd3 Ne2+ Kg5 f4 Bb1 f3 Bf4 f2 Bc7 Nf4 Bd6 Rb8 b6+ Ka8 b7+ Ka7 b5 Rc8 Ne2 Bc3 b8R Bb4 Nec3 Rf7 Ne6 Rcf8 d8B Rd7 B8c7 Rff7 Nd8 Rf8 Be5 Rd2 Bed6 Rf6 Qe6 Qe8 Qg8 Qc6 Rc8 Qa8 Rb8 Re6 Rc8 Ree2 Kf6 g5 Kf5 Nh2 Rb8 f1Q Rc8 Rf2 Rb8 Qc4 Rc8 Qb8 b6+ Ka8 b7+ Ka7 Ne6 Nf1 Rf8 Qe8 Nd8 Rd1 Qg6 Rd4 Rh8 Rdd2 Qg8 Qf8+ Nf7 Qb8 Nd8 Qa8
2QKBr2/R4R2/1BpnN1p1/B6R/4B2r/NPq2bPr/k4pP1/N1bN1q2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Nc6 f4 Nd4 fxe5 Nf5 Ra2 Qg5 Ra1 Ng3 hxg3 Qd8 Kf2 Kd7 Kf3 f5 Kf4 h5 d4 a5 e4 c6 d6 Ke6 d5+ Kf7 d7 a4 d6 Ke6 b6 g6 b7 h4 b8N h3 b3 h2 Ne2 a3 Be3 a2 Na6 Be7 Nb4 Bf8 Na3 Qa5 Kg5 f4 d8N+ Kd7 Ne6 f3 Bb6 f2 Nc3 Nf6 Bd3 Ng8 Nbc2 Rh4 Qg4 Rh7 Nd1 Ne7 Kf6 Ba6 Qf5 Kc8 d7+ Kb7 d8B Qc3 Ba5 Rh6 Bdb6 Rh4 Kf7 Nc8 Ke8 Bb4 Kd8 Bc4 Qf8 Ka6 Qe8 Rb8 Qd7 Nd6+ Qc8+ Rb7 Ng7 Bc5 e6 Be3 e5 Bc1 Be4 Be2 e7 Bf3 e8B Rh3 e6 Rh4 Nc4 Kb5 e7 Rb8 Ne6 Ra8 Bd7 Rh3 e8R Rh4 Rf8 Rb8 Rg1 h1R Be8 R1h3 Rf7 Ra8 Rh1 Rb8 Rb1 a1Q Rb2 Qb1 Na1 Qbd3 Ra2 Qf1 Bc7 Ra8 Bab6 Kb4 Ra7 Qe3 Na3 Qd2 Ne3 Kc3 Rh2 Kb2 Nd1+ Ka2 Ba5 Qde1 Bcb6 Qc3 Bd7 Qc2 Qb8 Rg4 Ke7 Rh8 Qc7 Raf8 Qc8 Qb2 Be8 Qc3 Kd8 Rh6 Rh5 Rh7 Rb5 Rh3 Rh5 Rgh4
2B3nK/N2r2BN/pp6/BR1N3b/1P3p2/QrPnRRPn/q6B/2n3Nk w - - 0 1 illegal: No proof kernel
7K/1RN1p1nQ/b1P1B1p1/3pq2N/1bRNb1P1/3B3k/3BP1b1/RqnRB3 w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 g6 f4 Nh6 f5 Rg8 f6 Rg7 fxg7 f5 h4 a5 h5 Ra6 g8B Rf6 Be6 Ng4 h6 Rf7 axb5 Rg7 hxg7 h5 Kd2 d5 g8N f4 c4 a4 b4 h4 b6 f3 b7 a3 c6 a2 c5 h3 c7 f2 b5 h2 b6 Bd7 c8R Nf6 Ke3 Bc6 Kf4 Na6 Kg5 Nb8 g4 Ba4 Bd2 Nc6 b8B Nh5 b7 Na5 Nc3 Bc6 Bg2 f1B Bg3 Bb5 b8R Ng7 Kh6 Nb3 Kh7 Ba6 Nb5 Nc1 Be4 Bg2 Bd3 Be4 Kh8 Bg2 Bd7+ Kf7 Nf6 Qb6 Nc7 Qb1 Nh5 Be4 Rb7 Bg2 Nf4 Kf6 Bge1 Kg5 Be6 Be4 Bc3 Bg2 Nh5 Be4 Bed2+ Kh4 Nf3+ Kh3 Nd4 Bg2 Rg1 h1B Qb3 Be4 Rd1 Bhg2 Qa3 Nf5 Be1 Bh6 Bcd2 Ng7 c6 Bc4 Rcb8 Ba6 Rb4 Bf4 R8b7 Bd6 Rc4 Bb4 Nb3 Bb5 Qa8 Ba6 Qg8 Qb2 Qh7 Qe5 Rb1 a1Q Nd4 Qa2 Ra1 Qb1
1R1nr2r/p1BPBkB1/5pp1/1R4RQ/p1N2n2/Nq2bKP1/5N1P/4rBN1 w - - 0 1 illegal: Other
rB6/2bN1Q1B/nP2nrNn/1b1N1qbR/Bp4p1/2RR2PN/kP3K2/2r2R2 w - - 0 1 illegal: No proof kernel
3q1Rn1/2k1n3/1RN2B2/NpNR1pB1/K1B5/1Pr2P2/1qrPbbBq/2Q2bN1 w - - 0 1 illegal: No possible last move
N3k2B/1B2rnb1/2p1RpNq/2R4P/Qq6/r1P1nBq1/1R2bPRK/Nb2N3 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 h4 a5 b4 d5 e4 g5 e6 g4 h6 c6 e7 g3 h7 g2 b6 d4 b7 d3 b5 a4 b6 a3 e5 a2 Bb2 Qd5 Nd2 Ra6 Rc1 a1Q Rh2 Qb1 Nb3 Qc5 Nf3 g1Q Rg2 Kd7 e8N Bg7 e6+ Ke7 Na1 Qd5 Nc7 Nh6 Na8 Rd8 h8N Qd6 Ng6+ Ke8 e7 Nd7 b8R Be5 b7 Bf4 Bh8 Ng4 c3 f6 Qa4 Qdb4 h5 Qh2 Be2 d2+ Kf1 d1B Ne1 Bh6 Bf3 Qg3 Kg1 Bg7 Rc2 Nde5 Re2 Nf7 Re6 Ne3 Kh1 Rd4 Kg1 Kd7 e8B+ Kd8 Bd7 Be2 Kh1 Re4 Kg1 Qc1 Kh1 Qg4 Kh2 Ra7 Re5 Qg5 Rc5 Re7 Be6 Ke8 Bc4 Nd8 Ba6 Bf5 Rc8 Bfd3 b8R Bb1 Bb7 Qh6 Rc7 Qc2 Rd7 Qd3 Rd6 Ra5 Re6 Ra7 Bc8 Nf7 Rbb5 Ra6 Bb7 Ra7 Qb3 Ra3 Qa4 Qbc4 Rb3 Qb4 Rb2 Qd6+ Kh1 Qdf4 Kg1 Qfg5 Kh2 Qg3+
4NR2/r1rRB2B/1n1pb3/N2PP2Q/R2qRr2/b3r2p/n4NkP/NK1B1b2 w - - 0 1 illegal: No proof kernel
4n3/1BN1R1QR/P2rp3/N1rnKbn1/1kN1P1pN/4rBP1/4qbRn/1B4B1 w - - 0 1 illegal: No proof kernel
1b3N1q/k1r2qp1/1n1Rp3/5B2/2N1P1Pr/Pq3B1N/1BN2R1K/RbQ1Rq1n w - - 0 1 illegal: No proof kernel
1q1R3R/N1PBpp1n/5BQr/NR2PrrN/7n/k3rP2/1bBK1qBN/5b2 w - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 h4 Nb8 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 b4 h5 e4 d5 g4 Kd7 c4 a5 e5 h4 c6+ Ke6 g6 h3 c7 d4 c5 Kd5 b6 h2 g7 d3 g5 Kc4 b5 Kb4 b7 a4 c6 a3 b6 a2 g6 Nh6 g8B Qd5 g7 Be6 c8B Bg4 c7 Ra4 Qc2 Rh7 Bd7 Qd4 Na3 Bh3 Nf3 Nf5 Bg5 Nh4 Rd1 a1R Kd2 Rh6 Nb5 R4a3 Na7 Rg6 Bf6 Rg5 Bg2 Qf4+ Ke1 d2+ Ke2 Rc3 Qg6 Ka3 Bh7 Qd4 g8N Bh6 Rb1 Re3+ Kd1 Ra2 Rb5 Ra1+ Kc2 Qf4 Rd1 h1R Nh2 Qb4 f3 Rf5 Be8 Nd7 b8N Nf8 b7 Rg1 Bd7 Qd4 Bh1 Bf1 Nbc6 Rgg5 b8R Qb6 Rd8 Qb8 Na5 Rb1 Bg2 Rb4 Rc5 Rb6 Rb5 Ra6 Bh8 Re6 Nf6 Rd6 Rc1 Rb6 Nh5 d1Q+ Kb1 Qd4 Bf6 Qd2 Rd1 Qf2 Kc1 Ne6 Rh8 Nf8 Qg8 Ra6 Bg6 Nh7 Qg7 Rf4 Bc2 Rff5 Qg6 Qg8 Qg7 Rb3 Bc6 Rg3+ Bg5 Qb8 Rdd8 Rb6 Bd7 Re6 Kd1 Rg4 Bf6 Bc1 Bg5 Rh6 Bf6 Rgg5 Qg8 Bb2 Qg6 Qg3 Kd2 Re3 Bh1 Qg1 Bg2 Qf2+
2q1q1b1/Kp4BN/NPP1R3/R4RQ1/2N1p2b/Brb4k/B1rpP1N1/3n1nR1 w - - 0 1 illegal: No proof kernel
1NbNKbBk/n3pB2/2R2p1r/p1R1BP2/1B3q2/P2bnP2/R1Nqr3/6QN w - - 0 1 illegal: No proof kernel
2N5/4RrQK/3BnQB1/8/B1q1Q3/1nPRn1rq/1PP2b1p/1Bk1NQ2 w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 c5 h4 f5 exf5 g5 hxg5 c4 b6 c3 dxc3 Nh6 Rxa5 Bb7 Ra1 Bd5 b7 Ng8 Qxd5 Nf6 Qd1 Ng8 Kd2 Kf7 Ke3 e5 Ke4 h5 f4 d6 g4 h4 f6 Ke6 f7 h3 f5+ Kd7 g6 Kc6 f6 Kc5 Kf5 d5 g5 e4 g7 d4 Kg6 h2 Bd3 e3 Nd2 e2 Ra7 e1N Ngf3 Rh7 Ne4+ Kd5 Bf4 Qa5 Nd6 Nc6 b8Q Nh6 g8B Qd8 Qb7 Qc7 Nc8 Nf5 Bd6 Ng2 Qf1 Nge3 Ne1 Ng7 Bf5 Be7 f8Q+ Ne6 f7 d3 Qg7 d2 f8Q d1Q Qff6 Qf3 Rg1 Qh3 Rg3 Rb8 Bf7 Ra8 Be8 Bf8 Qb4 Ncd4 Ba4 Qc4 Re7 Nb3 Bd3 Ra7 Bf5 Rh8 Rf3 Rg8 Bd3 Qg2 Kh7 Qgg4 Bg6 Qh3+ Bh5 Ke4 g6 Ng2 Rd3 Ne3 Qgf7 Bh6 g7 Bf4 Qf8 Bg3 Q8f7 Bf2 Qf8 Rb7 Q8f7 Rf8 g8B Rb5 Q7g7 Rg5 Bf7 Rg3 Bg8 Qf5+ Bg6 Rf7 Rd1 Ng4 Rd4+ Ke3 Qb7 Qfd3 Qe4+ Kd2 Rd5 Kc1 Rd4 Qd2 Rd3 Ne3 Qeh1 Na5 Bb4 Bg1 Bc5 Qb5 Qa8 Rf8 Rd4 Nd8 Q1f3 Qg2 Ba2 Nb3 Qae4 Rf7 Rd3 Qc4 Bd6 Ne6 Qf1 Bf2 Bb1 Qh3+
R2rb2Q/5q2/NP1Q4/k2N1p1B/4BN1R/Kn1PB2q/2b2PB1/2r1Nq2 w - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 hxg5 d5 exd5 Bb7 Bxb5+ Nc6 Bf1 c4 b5 Nd4 b6 Nb3 axb3 Bh6 bxc4 Bc8 Rxh6 Bg4 Rh1 Bc8 g4 Kd7 g6 f5 c5 a5 c4 e5 g7 h5 c6+ Kd6 c7 Kc5 g5 Kb4 d6 e4 c5 e3 d7 e2 c6 h4 g6 a4 Nc3 h3 Na2+ Kb5 Nf3 a3 Nb4 h2 Bg2 Qh4 d8N a2 Ne6 Qh5 Nf4 Nh6 g8Q Nf7 g7 Bb7 c8N Ra7 c7 Qh4 Ne7 Qh7 c8B Bc6 Bb7 Ne5 Qe8 Qh4 g8B Nc4 Bf7 Na5 Bh5 Rf8 Ba8 Rc7 Qc8 Bd7 Be4 Rc2 Qc3 Rd8 Qe5+ Ka4 d3 Be8 Qd6 Kb5 Be3 Rcc8 Rc1 a1Q Kd2 Qaf6 Ra1 Qf7 Ned5 Rc7 Qb3 Rc1 Qc3 Qg4 Qh8 Qg3 Nc2 Nb3+ Kc3 e1Q+ Kb2 Qf1 Ncb4 Qh4 Ra7 Qg4 Na6 Ka5 Ka3 Qg3 Ra8 Qg4 Rg1 h1B Ne1 Qg3 Bh3 Bf3 Bg2 Bd1 Rh1 Bc2 Rh4 Qh3
4n2K/1N2RPrr/P2Qb1N1/rn2qNR1/4Bn1Q/Nb6/bk1B3P/4B2B w - - 0 1 illegal: No possible last move
1n1Kb3/2BN2r1/1r2nQP1/5PB1/3Q1rRB/r1Q1NB1k/b1P2R2/Q4qr1 w - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 g5 a4 f5 axb5 e6 e4 f4 h4 f3 hxg5 Nh6 g6 Ke7 g5 Ke8 g7 Bd6 g6 Bg3 fxg3 Ng8 g4 f2+ Kd2 Qe7 g5 Qf8 Bh3 f1N+ Ke1 Ng3 Bf1 Nf5 exf5 Qf6 Qe2 Qe7 Qd1 Qd8 Kf2 Ke7 Kg3 a5 Kg4 d5 b4 e5 c6 h6 b6 e4 b5 e3 b7 d4 c7 e2 b6 e1R Rh2 a4 Be2 d3 Nd2 a3 Nf1 d2 Rf2 a2 Bf3 Be6 c8Q Rh7 Ne3 Ra6 Qc3 h5+ Kf4 h4 Ke5 Nf6 g8Q h3 g7 h2 g6 h1R Qh8 Ne4 g8Q R1h4 Qgg7+ Bf7 Rb1 a1R Rb4 Nc5 Rg4 R1a3 Qa1 Ne6 Qf6+ Kd7 Kd5 Be8 Qfc3 Qc8 Qhf6 Qc4+ Ke5 Qf1 Kd5 Nc6 b8B Rg7 b7 Rb6 Bc7 Nb8 Bg3 Rh1 Bh4 Rh2 Qe2 d1B Qec4 Be2 Q4d4 Bc4+ Ke5+ Bd5 Bd2 Reb1 Bc1 R1b4 Bd2 Rh1 Bc1 Na6 b8B Rba4 Bc7 Nb8 Ne2 Rab4 Ng3 Rg1 Ne4 Rba4 Nc5+ Kc6 Qf7 Rc4 Kf6 Rca4 Be2 Ba2 Ke7 Rab4 Ng2 Rba4 Bcg5 Rab4 Nd7+ Rc4 Qf6 Kd5 Bd1 Rf4 Ne3+ Ke4 Be2 Nf8 Bd1 Rb7 Kd8 Rb6 Re2 Kf3 Qfc4 Rg2 Q4d4 Rg3 Re1+ Kf2 Bf3 Ne6+ Kc8 Kg1 Re2 Rg2 Rf2 Kh2 Qd8 Kh3 Q8f6 Nf8 Kd8 Rg3 Nd5 Rg1 Ne3 Ne6+
3brQ2/q1nKBQ2/3B1B1Q/bbN1Q3/P7/nRn3rP/3N2RP/2k1n2B w - - 0 1 legal: proof: e4 f5 c4 a5 b3 d5 cxd5 a4 bxa4 Ra7 Ne2 Ra6 Ng1 Ra8 exf5 b5 a3 b4 axb4 h5 Ra3 h4 Ra1 h3 gxh3 Rh6 Qe2 Rh7 Qd1 Rh8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 d4 g5 b5 c5 b6 e5 b7 c4 d6 c3 d7 c2 d5 Bb4 f6 Rh5 f5 Ra7 f7 Ne7 d6 Qa5 d8B Nd7 b8Q Ra8 f6 Qa7 Ra3 Ba5 Ne2 Nd5 Be7 N7b6+ d7 Nc4 Rb3 Ba6 Nd4 Na3 Bf4 Bb5 Qd2 Rh8 Bc4 Rg8 Ne6 Rg7 Qh8 Re8 Rg1 Nc7 Qh6 Rg6 Qd6 Rgg8 Bg3 Rg7 Bd3+ Ke3 Kf5 e4 Nc5 Rgg8 Qd5 Rg7 Bgd6 c1N Bd8 Rgg8 Qe5 Na2 f8B Rg7 f7 Nc3 Bf1 Rg8 Bg2 Ke2 Bg7 e3 Nd2 g4 Bh1 g3 Bh8 Rg4 f8Q g2 Qfg7 Rg3 B8e7 Kf2 Qgg6 e2 Qgh7 e1N d8Q Reg8 Qf7 Rf8 Qef6 Ke2 Qe5+ Kd1 Bhf6 Rh8 Qdg8 Kc1 Qgg7 Re8 Qgf8 N7d5 Ke6 Bd8 Rf1 Ba5 Rf2 g1B Na6 Bd8 Rg2 Bgb6 Nc5 Ba5 Q7g7 Bd3 Qgf7 Nc7+ Kd7 Bb5+
n1b2rr1/5bq1/k7/3QRn2/B2RK3/1PRN4/Nq1B1PBP/1nQ1R1nB w - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 g4 f5 exf5 b4 Ba6 b3 axb3 Qb6 Bf1 Qd8 gxh5 a5 Ra3 a4 Bc4 e6 Ra1 a3 Bf1 a2 Bg2 Bd6 Bf1 Bf4 Ke2 Bd2 Bh3 Bb4 Bf1 Ba3 bxa3 Ba6+ Ke1 Bc8 Kd2 d5 Kd3 Kd7 c4 Kc7 h6 Kb7 f6 g5 c6+ Ka6 h7 d4 c7 g4 f7 e5 f8R g3 c5 g2 a4 Nh6 c6 Qd7 a5 Qe8 Bd2 Qe6 Rf5 Qg6 Nh3 g1Q Ke4+ d3 Bg2 Rg8 h8Q Qf6 Nc3 Nd7 Qc1 Nb6 Nf4 Rb8 Qg7 Na8 Qd7 Rf8 Rg5 Nf5 Qd5 Qh8 Rb1 a1N Na2 Nc2 Ra1 Na3 Rg4 Bd7 c8R Nb1 c7 Qg7 Re8 Bc8 Rh4 Qd1 Re1 Qc2 Re7 Qb2 Rh3 Bb7 c8B Rg8 Bd7 Rbf8 Ba4 Bc8 Bb4 d2 Nd3 d1B Bd2 Bh5 Re6+ Ka7 a6 Bf7 Re7+ Kb6 a7 Ka6 Rh4 Bh5 Rc7 Bg6 Rc3 Bf7 Kf3 e4+ Kf4 e3 Ke4 Nc7 a8B e2 B8c6 Na8 Rh5 Nh6 Re5 Nf5 Rd1 e1N Bh1 Kb6 Bd7 Ng2 Ndb4 Bh5 Bf4 Bf7 Qcd2 Nfe3 Bh3 Ne1 B3g2 Nf3 Qc2 Ka7 Rd4 Na3 Re1 Nb1 Qc1 Ng1 Nd3 Nf5 Bd2 Ka6
1RqBN1qQ/4K3/Q2B1b2/Q1P2P2/qN2B1Qq/1bR1q3/2PrB3/rk1n4 w - - 0 1 illegal: No possible last move
4Bb2/2P5/B1R3Rb/rNP4k/1r1B1P1n/1K1n1b1Q/rQBbQ3/1N1Q3b w - - 0 1 legal: proof: a4 b5 axb5 c5 d4 g5 dxc5 f5 f3 f4 e3 Nh6 exf4 Ng8 fxg5 Qb6 h4 Qd8 g4 Na6 f4 Nh6 g6 Qc7 h5 Qb8 g5 Qb6 g7 Qg6 hxg6 Ng8 Qe2 Nb8 Qh5 Kd8 Qd1 Ke8 Kd2 d5 Kc3 a5 b4 h5 b6 e5 b5 d4+ Kb3 e4 c4 h4 b7 h3 b6 h2 c6 e3 c7 d3 c5 d2 Nf3 e2 Rg1 h1B Nd4 e1B Ba6 Bf3 Bb2 Ne7 g8B Rh2 g7 Nbc6 b8Q Ne5 b7 Nd3 g6 Nf5 Nb5 Nh4 Bd4 Rf2 Bh7 a4+ Ka2 a3 g8B Bh6 Kb3 a2 g7 Bh1 Qa7 Bg4 b8Q+ Ke7 Qc8 Bgf3 Bf7 Re2 g8Q Bf8 Be3 Kf6 Qab8 Rg2 Qe2 d1R Be8 Bd2 Qgg4 Rc1 Qh3 Rc4 Qd8+ Kg7 Bf5 Kh6 Bd4 Rh2 Rg6+ Kh5 Bb7 Ra5 Ba6 Ne5 Bc2 Nd3 N1a3 Bh6 Rd1 a1B Nb1 Rg2 Qb7 Rca4 Rg1 Ra2 Rc6+ Rg6 Qd1 Bf8 Qe7 Bac3 Qee2 Bh6 Bf2 Bcg7 Bd4 Bf8 Bd7 Rg7 Rgg6 Re7 Be8 Re5 N5a3 Re6 Qb4 Re7 Nb5 Re4 Qc3 Re3 Qb2 Re4 Be3 Rc4 Bd4 Rb4#
1rBn2k1/q1P3P1/n1Q3R1/r1R3N1/1r1QR3/r1nRnq2/P1Q2K2/2Q1B2N w - - 0 1 legal: proof: f4 g5 d4 f5 b4 a5 bxa5 c5 dxc5 g4 e4 b6 exf5 Kf7 h3 Ke8 f6 Bh6 g3 Bb7 f5 Bf4 gxf4 g3 Qd2 Bf3 Qd1 Bg4 hxg4 Kf8 Bd2 Kf7 Bc1 Ke8 c4 Kf8 a6 d5 g5 e5 f7 h5 g6 h4 c6 d4 g7+ Ke7 f8R b5 a7 g2 c5 d3 f6+ Ke6 f5+ Kd5 c7 b4 c8R d2+ Kf2 b3 f7 e4 c6 h3 f6 Ke6 Re8+ Ne7 f8Q h2 f7 b2 Nf3 g1R Ng5+ Kf6 Bh3 Qd7 Qc2 d1R Bd2 Na6 Nc3 b1N Be1 Rd4 Nd1 Rg3 Rg1 h1Q c7 Rb4 Rcd8 Qa4 Rd3 Nc3 Bc8 Nc6 Qc5 Nd8 f8Q+ Kg6 Rc1 e3+ Kf1 e2+ Kf2 Rab8 a8Q Rh5 Qd4 Rgh3 Rgg3 Qe4 Qfc5 Qf3+ Kg1 Qa5 Nf2 Qb6 Nh1 Qa7 Re4 Kh6 Nf7+ Kh7 Rg6 Kg8 Qac6 Rf5 Ng5 Re5 Bh4 e1N Bg3 Ng2 Be1 Qg4 Kf2 Ne3 Qa5 Rg3 Qa3 Qh3 Ra1 Qg4 Qac1 Ra5 Rb1 Rc4 Rb5 Rb4 Rc5 Qd1 Bd2 Qf3+ Ke1 Qg4 Ree5 Ned1 Rf3 Ne2 Re4 Qh3 Ra3 Rgb3 Bc3 Ne3 Kf2 Qg4 Be1 Rd3 Rac3 Qh3 R3c4 Rda3 Rc3 Qh5 Rd3 Nc3 Bf5 Qd1 Bc8 Qf3+
N3b3/1PKb1P2/2QN2rQ/q3RnBP/3B4/k2BNbp1/1r2r1B1/1n2R2N w - - 0 1 legal: proof: d4 b5 h4 g5 e4 c5 dxc5 h5 a4 f5 exf5 Bh6 axb5 g4 g3 Bg5 hxg5 h4 g6 h3 Qd3 Qb6 Qd2 Qf6 Qd1 Qh4 gxh4 Rh6 Qe2 Rh7 Qd1 Rh8 Ke2 e5 Ke3 Ke7 Ke4 a5 Kd5 d6 f4 g3 b4 h2 c4 e4 c6 a4 h5 e3 c7 a3 g7 a2 c5 e2 f6+ Kd7 f7 e1Q f8Q Ra5 f5 Na6 f6 Qc3 f7 Qb2 b6 Qa3 b5 Nb8 b7 Qc3 b6 Rh6 Qa4+ Nc6 b8B Qc2 b7 Rb5 Nc3 Rb2 Nh3 Rg6 Bg2 Nh6 g8B Nf5 Re1 h1B Nd1 Qc3 Bg5 Qa5 Nhf2 Re2 Qc4 Na7 Bh7 Nb5 Ba7 Na3 Qh6 Nb1 Bb6 Rb2 Re5 Re2 Ne3 Rb2 Ke4 Kc6 Qa6 Bd7 c8N d5+ Kf4 Nd2 Re1 a1R Nd6 Raa2 Qc4 Nb1 Ba7 Kc7 c6 d4 Bc5 d3 Bd4 d2 Ke4 Qa8 Kd5 d1B Qb5 Qa5 Kc5 Kb8 c7+ Ka7 Kd5+ Qb6 Qc4 B1a4 Qc6 Ka6 c8N Ka5 Rg1 Kb4 Re1 Qa7 Nb6 Ka3 Na8 Qa6 Kc5 Be8 Kd5 Bb5 Kc5 Qa4 Kb6 Re2 Kc7 Rab2 Bh3 Bf3 Bg2 Rf6 Nh1 Qa5+ Qb6 Bbd7 Bg6 Nh4 Bc2 Nf5 Bd3 Qa4 Qa6 Rg6 Qc6 Qa5+
1Q3R1N/qB1q2K1/1N2R3/1BbnN1bN/1PpBQ3/4r1BP/k1P2r2/3nn3 w - - 0 1 legal: proof: e4 f5 exf5 e5 d4 b5 dxe5 b4 a3 Qg5 axb4 Qd8 g4 a5 b3 h5 gxh5 a4 Na3 Ba6 Nb1 a3 Ra2 Bb5 Ra1 Ba4 bxa4 Ra5 Nf3 Ra6 Ng1 Ra8 Ke2 Ke7 Ke3 d5 Kf4 c5 Kg5 a2 Kg6 d4 f4 d3 h6 d2 e6 Kd6 e7 Kd5 e8N Bd6 h7 Bc7 f6 Qd6 f5 Nc6 a5 Rc8 h3 Qd7 f7 Bd8 f8Q Nb8 a6 Qc6+ f6 Qd6 a7 Nc6 a8B Qd7 f7 Bg5 Qg4 d1N Nf3 Nf6 Bb5 c4 Ne5 Rb8 Qe2 Kd4 Re1 Nd5 Nf6 Re8 Bb7 Re6 Qd8 Rf8 Nc3 Re7 Rb1 a1Q h8N Qa7 Na4 Re6 Nb6 Kc3 Qc8 Nd4 Be3 Nf3 Qb8 Re7 Rf1 Ne1 Nh5 Ree8 Rc1 Kb2 Bd4+ Ka2 Kh7 g6 Kg7 Re6 Nc6 Re3 Ne5 Be7 Qf3 g5 Qe4 g4 Rf6 g3 Re6 g2 Rb1 Re8 f8B g1B Rb3 Re2 Rf3 Bg5+ Rf7 B1e3 Bd6 Rf2 Bc7 Be7 Rf3 B3g5 Rf8 Bc5+ Nef7 Qd8 Rh6 Bd2 Qd3 Nf3 Bg3 Qd7 Qf5 Re4 Re6 Bg5 Qg6 Re3 Qe4 Bge7 Ne5 Ne1 Kh7 Bf6+ Kg6 Bfe7 Kg7 Bg5+
2N4Q/4P2q/4Qn1K/2bRQ1pB/Nn3n2/1rPR1RB1/qP1R4/1k2bQ1r w - - 0 1 legal: proof: d4 c5 dxc5 e5 g4 b5 a4 h5 gxh5 d5 axb5 e4 f3 d4 e3 Bh3 exd4 e3 d5 Be6 Qd2 Bf5 Qd1 Be4 fxe4 Qd7 Bg2 Qd6 Bf1 Qd8 Ke2 Kd7 Kf3 f5 Kf4 a5 h4 g6 h6 e2 b6 e1B d6 Ke6 e5 a4 b7 a3 h7 a2 h5 Bh4 d7 Ne7 c6 Ra3 c7 Bg3+ Kg5 f4 c8Q f3 h6 f2 Be2 f1Q Bh5 Rb3 Nf3 Be1 Nfd2 Kd5 e6 Kd4 Ne4+ Qd3 Rh3 Ra3 Nd6 Bg7 Nc3 Bg3 Na4 Re8 h8Q Be1 h7 Nd5+ e7 Qa5 d8R Nd7 b8Q Rb3 Rf3 N7f6 Qe6 Nf4+ Qb5 Rf8 Qbf5 Qa8 Nc8+ Qd5 Rb1 a1N c3+ Kc4 Be3 Nc2 Bf2 Nb4 Bg3 Qc2 Qee5 Qe6 Rd2 Qa6 Nc5 Qa2 Na4 Rd8 Qfe6+ Rd5 Qd8 Bh8 Kh6 g5 Qeb6 Rd4 Qde2+ Qd3 Qf1 Re4 Qbd6 Re2 Rbd1 Rh2 Q6d7 Rh1 Qdh3 Ra3 Qdd7 Kb3 Qh2 Qe4 Rd5 Qf5 R1d3 Qe4 Qh4 Kc2 Qde6 Kb1 Rd2 Rb3 Qhh3 Ne8 R5d3 Bf6 h8R Qf5 Rg8 Bh8 Rf8 Nf6 Rfd8 Nf4d5 Qd4 Qa3 Be8 Nf4 Rd5 Nd7 Bg6 Qa1 Kh7 Qa2 Qde4 Bd4 Q4e5 Qe4 Kg7 Bb6 Qh8 Bc5 Bh5 Nf6 Kh6 Qh7+
8/p1RrPR2/P3N3/BN1nB3/4q1n1/N1q3qb/kbPQ1QBn/N2B1K2 w - - 0 1 legal: proof: g4 c5 b4 g5 bxc5 f5 f4 e5 fxe5 d6 cxd6 b5 gxf5 g4 h4 Na6 Bh3 Rb8 Bf1 Rb7 Bb2 Rg7 Bc1 Rg5 hxg5 Bg7 Bg2 Bh6 Bf1 Bf8 d4 Kd7 e4 Kc6 a4 h5 a5 h4 d5+ Kc5 f6 Kb4 e6 h3 d7 g3 f7 g2 e5 h2 g6 Be7 f8Q Bc5 d6 Bb6 g7 Qc7 d8N Ne7 g8B Be3 d7 Bg5 Bf4 Qb6 Ne2 g1N Na3 Qd6 Bg2 Rh7 Nc1 Qc5 Bf7 Nd5 e7 Bf6 e8N Nb8 a6 Nc6 e6 Bb2 Bh5 Ne5 Qd2+ Ka4 Nd6 b4 Kf1 b3 Bd1 Ngf3 Ndb5 Ng4 Be5 Qc3 Qc5 Re7 Qcf2 Rg7 Rg1 h1Q Rb1 Qh4 Rh1 Qg3 Rh7 Re7 Rf7 Kb4 Nc6+ Ka4 d8B Rd7 Ncd4 Kb4 e7 Ka4 Nd6 Kb4 Ne6 Ka4 Nab5 Kb4 Ba5+ Ka4 Nbc7 Ka3 Nc4+ Ka4 Ne8 Ba3 Ne2 b2 Qg1 Rd6 N8c7 Ngf6 Nd8 Bh3 Nde6 Ng4 Qf2 Rd8 Nc1 Rd7 Bb6 Kb4 Nb3 Ka4 Na1 Kb4 Rc1 Ka4 Ba5 b1Q Be2 Qb5 Rb1 Qbb4 Rb3 Bb2 Bd1 Qd4 Rc3 Qe4 Nb5 Qa3 Ne3 Qb3 Rc7 Qc3 Nbd4 Ka3 Nc4+ Ka2 Na3 Qh2 Ndb5 Qhf4 Rh7 Qg3 Rf7 Nfh2+
4N3/n2k2q1/pQNP1nBQ/1RbKn3/3P1QPB/1BQ1Rn1B/q1r1b3/8 w - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 b4 h4 b3 hxg5 a6 f4 Ra7 g6 Rb7 axb3 Rb6 b4 Rc6 b5 Rc3 Ra2 Rh3 Ra3 Rh5 Ra1 Rg5 fxg5 Bg7 Kf2 Bh6 Ke1 Bf8 Ke2 h5 Ke3 e5 Ke4 c5 d4 c4 b4 h4 g7 h3 b6 c3 g6 c2 f6 h2 b7 Qc7 b5 Qd7 f7+ Kd8 b6 Ke7 Bh3 Rh4 Nd2 Rh8 Rb1 Qc7 Rb5 Qd8 Nc4 Be6 Qe1 Nc6 b8Q Qc7 b7 Qc8 Qc3 Qd7 Nd6 Nb4 Ne8 Nc6 Nf3 Na7 Re1 h1Q Re3 Qg2 Qd6+ Kd8 Qb6+ Ke7 Bd2 c1N b8Q Nd3 Be1 Qa2 Bf2 Qb7 Be1 Kd7 Bh4 Bc5 f8Q Qc7 d6 Bb3 Qf4 Bd1 Qh6 Be2 Q8b7 Qb2 Kd5 e4 Qa8 Ne5 Qf4 Nh6 g8B Qc2 Bh7 Ng8 g7 Qd2 Rd3 e3 Bg6 Rh6 Ng5 Rh7 Ne6 Rh5 Nd8 Qa2+ Qb3 Rf5 Nc6 Rf8 Qh6 Rf1 Qc4 Rc1 Rdb3 Rc2 Qc3 Bd1 Qab7 e2 Qf4 e1N Qb8 Nh6 g8B Be2 Qca5 Nc4 Re3 Ba3 Ke4 Ne5 Ng7 N1f3 Qbf8 Bc5 Ne8 Kc8 Bb3 Ng8 Q8h6 Qg7 Qc3 Kd7 Kd5 Nf6+
K1rB3B/1Np1nPNn/2n2nBP/1q1B2Q1/4R1RR/5QR1/2Pr4/1bk2q2 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 e5 exf5 b5 d4 Nc6 dxe5 Bc5 a4 Bb6 axb5 a4 Ba3 Ba5 bxa5 Nb8 Bb2 Nc6 Bc1 Nb8 Ke2 Ke7 Kf3 d5 h4 g5 a6 a3 a7 a2 h6 d4 Ke4 d3 f4 g4 b6 g3 f6+ Ke6 f5+ Kd7 Kd5 d2 h7 g2 b7 Qe7 h5 Qf8 f7 Qg7 f8R Qg3 e6+ Ke7 h6 Bd7 Bd3 Bb5 Nc3 Qe3 Rh4 Qf3+ Ne4 Ba6 Nh3 g1Q Nf4 Qe2 Nc5 Qgf1 Nh5 Bb5 Rb1 a1N Rbb4 Nb3 Rbg4 Nd4 Ng7 Ndc6 Re8+ Kf6 e7 Ba6 Be4 Qb5 Qf3 d1N Bg5+ Kf7 f6 Nf2 Bd3 Ne4 Rd8 Kg6 e8R Qa5 f7 Nf6+ Ke6 Rg8 h8B Nh7 Kd5 Qb5 Re5 Re8 Rc8 Re6 Rg8 Rf6 Rg3 Rf4 Bd8+ Rg4 Re7 Kg5 Ke6 Nef6 Bg6 Qg1 Ree8 Ne7 Ke5 Qgf1 Ke6 Nbd7 b8Q Bc8 Qbb7 Nb8+ Ke5 Be6 Qbd5 Qfb1 Nb7 Q1f1 Qc5 Ba2 Qcd5 Bb1 Qc5 Na6 Qcd5 Rc8 a8B Nb8 Qc5 Qa6 Qg1 Ne4 Kd4 Nef6+ Kc5 Qae2 Qc6 Kf4 Qf3+ Ke5 Qgg2 Qd3 Qd2 Rd4 Qg5+ Qf5 Nd6 Rd3 Bd5 Rd2 Nb7 Ng4 Kb4 Kd4 Ka5 Qe5 Rhh3 Ngf6 Rh4+ Qf4 Rgg4 Qd3 Rg3 Kc3 Rgg4 Kb2 Rg3 Nf5 Re4 Kc1 Rgg4 Ne7 Rg3 Nbd7 Rgg4 Qb3 Ka6 Nb8+ Ka7 Qb5 Ka8 Qf5 Rg3 Qh3 Re8 Qhf1 Reg4 Neg8 Re6 Ne7 Ree4 Nbc6#
1rN2R1b/3q3K/k1qB4/r2N1B2/P1P2Np1/r1R1QqnQ/2RP3N/3q3R w - - 0 1 illegal: No proof kernel
3R1n1N/1rQB2Pr/2Q2B1b/1K1n3k/n1PN1pn1/NQ3R2/QP2nN2/5n2 w - - 0 1 legal: proof: d4 c5 dxc5 g5 g4 b5 f4 e5 fxe5 f5 a4 f4 axb5 Qf6 h3 Bb7 Nf3 Qf5 Ng1 Bf3 gxf5 g4 Ra3 g3 Ra1 Bg4 hxg4 Kf7 Rh3 Ke7 Rh1 Ke8 Kd2 Kf7 Kc3 d5 Kb4 h5 e4 d4 c4 a6 b6 h4 f6 Kg6 e6 g2 e7 h3 e8Q+ Kh6 e5 d3 f7 a5+ Kb5 d2 b7 a4 g5+ Kg6 c6 a3 c7 a2 c8Q h2 e6 Ra3 e7 Ra4 Qec6+ Nf6 e8Q Ra7 Nh3 g1N Na3 Rh5 Nf2 Bg7 Qb3 d1N Be3 Nd7 f8N+ Kf5 b8N Rh6 g6 Kg5 Bd4 Ne2 Bh3 Ng4 Rf1 h1N Q8c7 Nde3 Bf6+ Kh5 Rad1 a1N Qa6 Nd5 Nc6 Rh7 Nd4 Bh6 Qe4 Bg5 g7 Bh6 Ng6 Nf8 Nh8 Nhg3 Qee6 Rb7+ Qeb6 Nh2 Bd7 Ng4 Qa2 Nb3 Qa4 Ra7 Qbc6 Nc5 Q4b3 Na4 Rd3 Nde3 Rfd1 Nd5 Rf3 Nf1 Re1 Ng1 Re8 Ne2 Rd8 Rb7+
r2nN1N1/1R1qp2N/6pb/3R1nQ1/2Qr4/KbRRBP1N/P3Pr2/1B5k w - - 0 1 legal: proof: h4 f5 b4 a5 bxa5 d5 g4 b6 axb6 g6 gxf5 d4 h5 d3 h6 Qd4 cxd3 Qf4 d4 Qe5 d5 Qg7 hxg7 Ra4 Qc2 Ra6 Qd1 Ra8 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb2 c5 f6 c4 f7 h4 f3 h3 b7 h2 Nd2 Nh6 g8N Rh7 Bh3 Be6 Qb3 Ra4 Rb1 Rg7 Bf5 Bd7 Ne4+ Kc7 d6+ Kc6 Be3 Kd5 Nh3 Be6 d7 Nc6 b8Q Nd8 Rhc1 h1Q Nd6 Qd1 Ne8 Rh7 Qf4 Ra8 Qa4 c3+ Ka3 c2 Rb7 Qd2 Bd3 Nf5 Qg5 Bh6 f8N Rh8 Nh7 Bf7 Rd1 c1R Bb1 Rc4 Rc1 Ke6 d5+ Ke5 d6 Rd4 Rc3 Bb3 Qh5 Ne6 d8R Qd1 Rdc8 Nd8 d7 Qd2 Rd3 Qd1 N3g5 Qd2 Rcc3 Qd1 Bg1 Kf4 Nh3+ Kg3 Be3 Kh2 Qg5 Kh1 Qa6 Nf7 d8R Qd2 Rd5 Nd8 Rc2 Qd1 Rdc3 Qd3 Rd2 Qb5 Qa4 Qd7 Rdd3 Ne6 Nhf6 Bg7 Ng1 Rh2 Nh7 Nd8 Nh3 Rf2 Qa6 Bh6 Qa4 Rc8 Qc4 Ra8+
1Q1B2B1/b1nP1R1K/2q1b1p1/k3N3/B3R2p/nP3b1r/rQ3BP1/R2R2N1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 b5 fxe5 a5 h4 g6 a3 a4 h5 Qf6 h6 Qg7 hxg7 b4 Qxa4+ Nd7 Qd1 b3 Qxb3 Ra5 Qd1 Ra8 b3 Nb8 Kf2 Kd8 Ke3 h5 Kf4 c5 Kg5 Kc7 e4 Kb6 d4 f5 a4 f4 a5+ Ka7 a6 Kb6 e6 f3 e5 c4 d6 f2 d5 h4 a7 c3 e7 c2 e8R Na6 e6 Nc7 d7 Rh7 d8B Bd6 e7 Bg4 Be3+ Bc5 d6 c1Q d7 Bd4 Bb5 f1B Rf8 Nf6 g8B Rg7 Kh6 Bd3 e8R Bdf5 Rf7 Ne4 Nd2 Nc3 Ba4 Nb5 Qc2 Bf3 Re4 Ka5 Bf2 Na3 Qb2 Qc6 Rd1 Be6 Nc4+ Kb4 Ne5 Ka5 Rf5 Re7 Rf7 Re8 Kh7 Rf8 Re7 Rf4 Rf7 Rg4 Ra1 Rg3 Rd1 Rh3 Ra1 Rb8 a8Q+ Ba7 Rd1 Rb6 Qb8 Rb4 Ne2 Rc4 Rhf1 Rc1 Ng1 Ra1 Rfe1 Ra2 Ra1 Nc4 Red1 Na3
R1Bn2N1/1b5k/1B6/n1Pn1N2/2b1pbP1/PRQN1Q1K/rq1R1pRN/8 w - - 0 1 legal: proof: d4 b5 e4 d5 exd5 g5 b4 a5 bxa5 e5 f4 c5 dxc5 e4 h4 Ra6 hxg5 Rd6 Rh4 Re6 Rh1 Re5 fxe5 Qd7 Rh6 Qc7 Rh1 Qd8 Kf2 h5 Kg3 f5 c4 Kf7 g6+ Kg7 d6 b4 a3 b3 d7 f4+ Kh3 b2 g4 f3 e6 h4 a6 f2 a7 Qc7 d8R Be7 a8R Bg5 e7 Qb6 e8N+ Kh6 g7 Be6 c6 Bc8 c7 Rh7 Nd2 b1B Nd6 Nc6 Rh2 Qb2 Ne2 Nge7 Rg2 Bd3 Rb1 Bf4 Nf3 Bb7 c8Q Na5 Nh2 Nec6 g8N+ Kg6 Qb3 Rc7 Be3 Kh7 Bb6 Rd7 c5 Bc4 Nf5 Rd2 Nc1 Rc2 Rd3 Nd8 Rd2 Qd4 Qc6 Ra2 Qca4 Bb5 Qac4 Bc8 Qf3 Qc3 Rb4 Qb2 Qcc3 Bca6 Bc4 Bc6 Bd5 Bc4 Nd3 Bb7 Nf1 Bh6 Kh2 h3 Kg3 h2 Kh4 h1N Kh3 Bf4 Be6 Ng3 Rb3 Nh5 Bc8 Nf6 Nh2 Nd5
1kN1B2K/3R4/B1Q1BPNB/3qr1p1/Pnn4r/qR1r4/Q1p1PbN1/4N3 w - - 0 1 legal: proof: c4 a5 h4 g5 d4 f5 b4 d5 cxd5 e5 dxe5 f4 bxa5 f3 h5 Nh6 gxf3 Be6 f4 Bf7 f5 Bg6 hxg6 Ng8 Kd2 Kd7 Kd3 Kc8 Kd4 b5 a4 h5 f4 h4 a6 h3 a7 b4 d6 b3 g7 c6 e6 b2 Ke5 c5 f6 h2 f7 c4 d7+ Kb7 e7 c3 e8B c2 f5 Qb6 d8N+ Kc7 Ne6+ Kb7 Nd2 b1Q Ba3 Q6b4 Ngf3 Na6 Ne4 Rh7 Bh3 Qe1 Qd6 Qd2 Rd1 h1R Ne1 Nc7 Nf4 Rf1 Qc6+ Kc8 Nfg2 Rh1 Nd6+ Kd8 Nc8 Bc5 f8N Qb4 Rab1 Na6 Rb3 Ne7 Kf6 Qd5 g8Q Bf2 Ng6 Rh4 Kg7 Qc3+ f6 Nb4 Be6 R1h3 Qf7 Nf5+ Kg8 Rb8 a8B Ne3 Bb7 Nc4 Ba6 Rd3 Kg7 Rb5 Qg8 Na2 Bf8 Nb4 Qf7 Qb2 Kg8 Qa2 Bh6 Qa3 Kh8 Rc5 Qa7 Ra5 Qd4 Rc5 Qa1 Rb5 Qa2 Ra5 Qb5 Kc7 Qc6+ Kb8 Rd2 Qd7 Rd1 Re5 Rd2 Rg3 Rd5 Rd3 Rd4 Qb7 Rd5 Qb5 Rd7 Qd5
1qQ3K1/1pP1R3/Q3b3/rP2P2N/1kB3NB/qp1nQ2q/2B1b2Q/BRr5 w - - 0 1 illegal: Other
R7/b3N1qN/p1BqQRK1/q5Pn/1QQ1pPP1/1b3B2/Br3Q2/k1Bb4 w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 f5 dxc5 b5 a4 f4 axb5 a6 g3 Nc6 f3 Ne5 e3 Ng4 fxg4 f3 Rh6 Rb8 Rh1 Rb6 Qd2 Rf6 Qd1 Rf4 exf4 Bh6 Qd3 Bg7 Qd1 Bf8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 b4 h4 c4 d6 c6 f2 c5 h3 g6 h2 c7 Rh7 g7 Qe8 c6 Qh5 b6 Qg5 b5 Qh5 b7 Kf6 b8Q e5 b6 Rh8 b7 Qg5 Bb5 f1Q Qe2 Rh7 Nc3 Ne7 g8B Nd5 Ra5 Rh4 Qc4 Qd1 Nf3 Be6 c8B Qg7 c7 Rh7 Re1 h1Q Qa7 Rh2 b8Q Rb2 Qf2 Qh5 Bc6 Bf7 B8b7 Ke6 Rb5 Qd2 Rb6 Qhh6 Nd1 Qa5 Ne3 Qhf6 Nf5 Qd8 c8Q+ Qd7 Qa4 Nf6+ Kd3 d5 Qc4 Bd6 Ne7 Nh5 Rh1 Bc7 Ng5+ Kd6 Rh4 d4 Ke4 d3 Nh7 d2 g5 d1B g4 Qd8 Kf5 Qdf8 Qcc2 Bb3+ Bf7 Qd8 Qc4 Qdf8 Ba8 Qd8 Qbb7 Bb8 Rh3 Ba7 Rc3 Qgf8 Kg6 Qd7 Re3 Qfd8 Qe6+ Kc5 Qbb8 Kd4 Qbd6+ Bd5 Qb4+ Bc4 Bf3 e4 Bc6 Qh8 Re2+ Kd3 Rc2 Qd6 Rb8 Qhd4 Ra8 Bb3 Rc5 Qh8 Rf5 Qc3 Rf6 Qce5 Qfb6 Kc2 Qf2+ Kb1 Qec4 Ka2 Bfd5 Kb1 Qe6 Ka1 Qcc2 Ba4 Ba2 Bb3 Qcc4 Qc3 Rf7 Qh8 Rf6 Qg7+
Q1NQn3/B1n3kP/5N2/7P/K3nRq1/2RnQP2/1nBrp2p/2b1Q1RR w - - 0 1 illegal: No proof kernel
rQ1n1Q2/pPBN4/1r1qpBP1/1P1R2K1/3qr3/2NBk1BR/1N1n4/1q4N1 w - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 d4 h5 b4 c5 f7 h4 f8N g2 f6 h3 g5 c4 g6 e6 f5 c3 Kf4 c2 b6 h2 b5 Rh7 f7 Qd7 f6 Qc6 b7 Qa6 Nd7 Qb6 f8N Rh5 f7 Nf6 Nc5 Rh4+ Kg5 Rh7 Bd3 Nbd7 Nc3 Nh5 N5a4 Nb8 Nb2 Rh6 Nd7 Nc6 Ra4 Nf6 f8Q+ Ne7 Bd2 c1R Be1 Rh4 Bg3+ Rf4 Qf1 Qa6 Qc8 Nc6 Ra3 Qb6 Qb8+ Qc7 Ra4 Nd8 Rc4 Ra1 Rc5 Ra6 Qf2 Rb6 Qf3 Ke7 Qf1 Re4 d6+ Ke8 d5 Qc6 Nh3 g1Q Qf3 Qd4 Ng1 Qc4 Ne5 Qa4 d7+ Ke7 Qf2 Qd4 d6+ Kf8 Rd5 Kg7 Bc2 Ng4 Bd3 Ne3 Qf4 Nf1 Qf5 Nd2 Qf2 Qc7 Qf1 Nc6 d8B Qd7 Bc7 Nd8 Qf4 Qc6 d7 Qcc5 Kh5 Qd6 Qh6+ Kf6 Qf8+ Nf7 d8B+ Kf5 Bf6 Nd8 Bf2 Kf4 Nd7 Re2 Bg3+ Ke3 Kg5 Re1 Nh3 Re2 Rd1 h1Q Ng1 Qf3 Ra1 Qf1 Ra4 Qb1 Rb4 Q4c5 Rh4 Qd4 Rh1 Rf2 Rh2 Rf4 Rh3 Re4
2NRB1rq/QbQ5/q2R1BP1/R5qP/1krP1NQ1/b3Q3/R1p4p/q2K4 w - - 0 1 illegal: No possible last move
k1BKB3/P2Q1pP1/r1q4p/1B1q2B1/1N1Pb1Rb/r2RN2b/4b3/1QR1R3 w - - 0 1 legal: proof: h4 d5 b4 a5 bxa5 g5 hxg5 e5 f4 e4 c3 e3 dxe3 d4 f5 d3 Qb3 Nc6 Qd1 Nd4 cxd4 Ne7 Qb3 Bd7 Qd1 Ng6 fxg6 Bc8 Kf2 Kd7 Kg3 Kc6 Kf4 b5 Ke5 Kb7 g4 c5 a4 b4 a6+ Kb8 a7+ Kb7 g7 c4 g8R h6 g6 b3 a5 d2 g5 b2 g7 c3 g6 c2 a6+ Kc6 e4 Rh7 Nh3 Qh4 Nf4 Be7 Ng2 Rb8 a8B+ Rb7 a7 Bb4 Ne3 Ba5 Na3 Qe1 Kf6 b1B e5 Bf5 e6 Bb4 e7 Bd3 e8Q+ Kc7 Qd7+ Kb6 Bh3 Bc3 Ke7 Bf5 Kd8 Qf2 Re1 Rc7 Bc6 Qf1 Bb5 Kb7 Re8 Be6 g8R Ka8 Re7 Bf5 Re4 Qf2 Rg4 Qf3 g7 Rc6 Re8 Ra6 Re6 Qb7 Rc6 Bb4 Rc3 Qd5 Rd3 Be6 Ng2 Bd6 e4 Bg3 e5 Bf2 Ne3 Bh4+ Rg5 Bf5 e6 Bg4 e7 Rh8+ e8B Rf8 Bb2 c1Q Nac2 Bf5 Nb4 Qcc6 Qb3 d1B Bc1 Be2 Bd2 Bc2 Rac1 Be4 Bf5 Bg2 Qb1 Bh3 Rc3 Be4 Rd3 Bg3 Rg4 Bf2 Nec2 Bh4+ Bg5 Ra3 Ke7 Bg3 Ne3 Bh4 Qd8+ Kb7 Bed7 Rg8 Qc7+ Ka8 Qd6 Rc8 Be8 Rb8 Bc8 Rb6 Qd7 Rba6 Kd8 Qcc5 Bc4 Qcd6 Bb5 Q6c6
1q1Rb2B/3n1R1Q/3p1Q1n/1B3N2/p1nNBrPp/K3Pq2/1PQ3Q1/k6B w - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 f5 d4 b5 dxc5 a6 axb5 f4 g3 Qc7 g4 Qd8 Kf2 g5 Qd3 a5 Qb3 Be7 Qe6 Ra6 Qb3 Rf6 Qa2 Rf5 gxf5 g4 Qd5 g3+ Ke1 g2 Qd1 Bh4+ Kd2 Bg3 hxg3 Ba6 Ke1 Bc8 c4 Kf7 Kd2 h5 Kc2 d6 Kb3 a4+ Ka3 f3 c6 f2 b6 Qf8 g4 Ke7 b7 Na6 b8Q Rh7 e6 Kf6 c5 Ke5 e7 Rf7 e8B Qg7 e3 Rb7 c7 Qh6 c6 Qf8 f6 Nh6 f7 Ng8 Qe2 Rb4 Bd2 Bf5 c8Q Be6 c7 Rf4 Bc6 Bd5 Qa7 Rf5 Bc3+ Ke4 Nf3 g1Q Nh4 Rg5 Bh8 Qh2 Nf5 Qg3 Qca8 Rg6 c8B Rf6 B8b7 Qb8 f8Q Qf3 Qd1 Rf7 Bfb5 f1N Qh6 Nc5 Qf6 Nd2 Qc2+ Nd3 Rc1 h4 Rf1 Nh6 Rf2 Nb3 Rf1 Nc5 Rc1 Nd7 Rf1 Qf2 Nc3+ Kf3 Rfc1 N3e5 Ne2 Qg2 Rab1 Kf2 Ra1 Qf3 Rab1 Bb3 Be4 Rf8 B7c6 Bf7 Q7b7 Be8 Ned4+ Qe2 Bh1 Rf7 Bce4 Rf8 Qd1 Qf3 Rc8 Rf7 Rd8 Nc4+ Kb4 Rf8 Rc1 Rf7 Rc3 Rf8 Qc2+ Kf1 Qc7 Ke1 Qac6 Rf7 Qg2 Kd1 Rc2 Nc5 Rf2 Kc1 Q6d7 Rf8 Qh7 Nd7 Bd5 Kb1 Be4+ Ka1 Qc8 Ncb6 Ka3 Rf7 Rc2 Re7 Rc7 Re5 Ra7 Rd5 Qcc2 Rc5 Ng3 Rf5 Rc7 Rf4 Ngf5 Ne5 Re7 Nbd7 Rf7 Nc4+
1q3B2/2n1qR2/Np1KR1Pn/B5bQ/3PP2B/1B1Q2pk/p2Q2r1/Q3N2n w - - 0 1 illegal: No proof kernel
6Q1/2BR3R/6Pq/nN1R1QKp/3P1N1Q/pR2r1P1/kb2r2p/1rQr1B2 w - - 0 1 illegal: Other
NB2kb1Q/2rRB1Q1/P5N1/3Qb2B/2p5/1qr3pK/4pPP1/bqB1R2Q w - - 0 1 illegal: Other
R7/p1NPrP2/1pQ1Q2B/3K1pBB/BNb1r2R/2q1N2r/1q1NP3/b1k5 w - - 0 1 illegal: No proof kernel
n2BNN2/PR1P1k2/R2Bnp1n/1n3p2/2r2QQ1/KNB2N2/5Ppb/2n2B2 w - - 0 1 illegal: Other
n2bB3/1n2p3/1N1QK1RN/k1BQ4/q3qRN1/2p1BN1p/n1P1P1P1/n5B1 w - - 1 2 illegal: Other
1Bb3k1/1r1B4/PrPqp3/Qpp2n2/NpK4R/3PQ3/4B1qB/1N1R1N1N w - - 0 1 illegal: Other
K1kB1B2/n7/1nqb2Pr/Q2B2nP/Q1bPq1R1/Nb2R3/N5QQ/r3qB2 w - - 0 1 illegal: No possible last move
1r1R2QR/q1kn4/2Pr3R/N1b1PN1B/7B/n1qQq1nb/3P2bB/KBR5 w - - 0 1 illegal: No proof kernel
Q2bb1n1/bBq1n2n/B3P3/1R1QN1R1/3n1BNQ/4rQKB/1P4P1/1rn3k1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 f5 e4 c5 d6 Ke6 g6 h5 d7 a5 b6 a4 g7 a3 b7 h4 Qe1 h3 Nf3 a2 Bh6 h2 Bd2 f4 Bc3 c4 Nbd2 Ra3 Qe2 Bc5 Bb4 c3 Nc4 c2 Bd2 c1B Ne3 Nc6 b8Q Ba7 Ng4 Re3 Qa8 Qc7 d8Q Bd7 Qh4 Be8 Qd1 Nce7 Ba6 Nf6 Qf1 Nh7 Bb7 Ng8 d5+ Kf7 e6+ Kg6 e5 Kf5 e7 Ke4 Qd1 Kd3 e6 Ke4 Nfe5 f3 Kg3 f2+ Qf3+ Kd4 d6 f1N+ Kf2 Ng3 d7 Nf5 d8Q+ Nd6 Rb1 a1N Kg3 Nc2 Re1 Bh5 Ra1 Be8 Ra5 h1N+ Kh3 Nf2+ Kg3 Nd3 Rb5 Na1 Qd7 Nc2 Qc6 Nc8 Rd1 Bd7 e8B Nce7 Bg6 Be8 Bf5 Re2 Bg5 Re3 Bf4 Bd2 Ra1 Ba5 Ba6 B5b6 Raa5 Nc1 Be4 Qd6 Bd5 Bd8 Qd7 Qc7 Bdb7+ Nd5 Ng6 Kd3 N6e5+ Kd2 Qd6 Ke1 Qc6 Nde7 Qd5 Nh6 g8B Nd4 Bf7 Rf8 Bh5 Nhg8 Bg6 Rf7 Bf5 Rf6 Nf2 Kf1 Bh3 Kg1 Nfg4 Rf5 Bg5 Rf4 Bh6 Rfe4 Bg5 Re1 Bf4 R4e3 Qc4 Bg6 Rb4 Bc2 Nc6 Ncb3 Rg5 Bg6 Qd5 Be8 Rb5 Rb1 Nce5 Nc1
1QNRN1k1/BR1b2rr/3bPqr1/3R3n/r2P3B/2nbPK1Q/1B6/3Rr2B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 b4 a5 h4 f5 d4 Kf7 h6 c5 d6 a4 h5 c4 e6+ Kf6 h7 Kg7 b6 c3 h6+ Kg6 b5 f4 d7 g4 b7 f3 e3 a3 b6 a2 Nd2 c2 Ne4 Qg5 d8B Ra7 Rh5 Bd7 Bg2 Qf5 Nd6 Qd3 Nh3 Ne7 Ng5 Nd5 Qf1 Qf5 Ne8 Nc3 Ne4 Bd6 Bh1 Qf6 Bb2 c1R Qh3 Re1 Rd1 a1R Rd5 R1a4 Be7 Rg8 h8R Rg7 Rf8 Kh7 Rf7 Kg8 Bd8 Nc6 b8B Ne7 b7 Ng6 Be7 Nf4 h7+ Kh8 Kg3 f2 Bd8 f1B Be7 Be5 N4d6 Bd3 Nc8 Bd6 Kf2 g3+ Kf3 g2 Bd8 Qh6 Bh4 g1R Re7 Nh5 Rf7 R7a5 Ba7 R1g6 b8Q Qg5 Rb5 Qe5 Rb7 Rc5 Rf5 Rc7 Rg5 Qf6+ Rf5 Nf4 Rd5 Nh5+ Qf5 Re7 Ng7 B7b5 Ne8 Rcd7 Nc7 Kg7 h8R Bc6 Rd8 Rf7 Ne8+ Kg8 Rb6 Rh7 Rb5 Rdg7 Rb7 Qe5 Qg4 Bd7 Qh3 Qf6+
1n1qQ2r/N1Q1b1nN/2rP1N2/3RPBB1/KBR5/r5r1/k2B2Pb/1b3Nr1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 f5 d4 h5 Kd2 a5 Kc2 c5 Kb3 f4 d6+ Ke6 b6 h4 d5+ Kd7 e6+ Ke8 e7 Kd7 b7 c4+ Ka4 c3 e5 h3 g6 c2 b5 h2 g7 f3 b6 f2 Bd2 c1B Qc2 Na6 b8B Nh6 g8N Nf5 b7 Ng7 Bd3 f1R Nf3 Rg1 Ng5 Rh3 Nh7 Rg3 Ba7 Nb8 Bc5 Ra6 Bcb4 Rc6 Ra3 Rg5 Rc3 Rg3 e8N Be7 Nc7 Ba3 Rc4 Bc1 Be3 Bd2 Nb5 Be1 Bg5 Bd2 Na7 Bf4 Ka3 a4 Nd2 Nh5 Nf1 Ng7 Kb2 a3+ Kb3 a2 Ka4 Na6 b8Q a1R+ Kb5 Ra3 Bf5+ Ke8 d7+ Kf7 Qc7 Nb8 d6 Bb7 Qa4 Bc8 Bd3 Ke6 Bf5+ Kd5 Ka5 Qf8 d8B Be6 Bg4 Bf5 Kb5 Bb1 Bf5 Qe8 Ka5 Bf8 Bdf6 Qd8 Bh6 Be7 Bh4 Be3 B4g5 Bc5 Bgd2 Be3 Bg5 Bf4 Rc5+ Kd4 Rd5+ Kc4 Ngf6 Rae3 Qb5+ Kb3 Ng8 Ka2 Ngf6 Rc2 Qe8 Rc6 Kb5 Ra3 Ne3 Rgc1 Re1 h1R Nf1 Rg1 Re4 R1c3 Rc4 Rh3 Qf8 Bh2 Qf7 Rcg3 Qe8 Rab3 Ka4 Rh6 Nf8 Rh8 N8h7 Ra3+
B1r1bR2/bqnK2kP/1N6/Q1B2Pnb/2R1PQ2/n5NN/3b1b2/N2Br2B w - - 0 1 illegal: No proof kernel
1N3RR1/3P1B1q/QBP1Bbb1/QN2kNr1/2P3nB/1b3n2/3bN2n/1K1r1b2 w - - 0 1 illegal: No proof kernel
1k2Nq2/4B2N/3P1rbn/Q1PR1BR1/bN3QP1/1b2QQb1/1q2N1rb/nK6 w - - 0 1 illegal: No proof kernel
2kn1R2/R5q1/3Qq3/b2Rq2q/1r1N2BP/3B1b1Q/N1rPPB1B/nK2R2n w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 h4 a5 h6 f5 b6 g5 d6 c5 h7 a4 b7 f4 b5 a3 b6 f3 Nh3 g4 Qc2 c4 Kd1 f2 Ng1 g3 Nf3 a2 Qc3 g2 Kc2 g1Q Ba3 Nh6 Nd4 Qf6 Bc5 Qgg7 Qh3+ Ng4 Nc3 Nc6 b8Q Qe6 b7 Nd8 Rg1 Rg8 h8R Ra4 Re1 a1N+ Kb1 Be7 Na2 c3 Bg2 f1Q Bf3 Nf2 Bg4 Re8 Rf8 Nh1 Rg2 Bg5 Rgf2 Be7 R2f7 Qff6 Bb6 Qfh6 Bc5 Qh5 Bb6 Nc6 Bc5 Kd8 d7 Rc4 Ba7 Bb4 Qd6 Ba5 b8B Bb7 Bc5 Qef6 e6 Qfe5 Nb3 Rb4 Bf2 Nd4 Re7 Bf3 Ref7 Nc6 Re7 Re4 Nd4 c2+ Kb2 Re3 Qc5 Qef6 Bh2 Qfe5 Ref7 Kc7 e7 Rc8 e8B Rb3+ Kc1 Rb4 d8R+ Kb8 Rd6 Nd8 Bb5 Rc6 Ra7 Rc7 Rd7 Kc8 Bd3 Rc6 Nb3 Qe6 Rd5 Rc7 Qd6 Rc3 Kb2 Rc7+ Nc3 c1Q+ Ka2 Qa3+ Kb1 Rcc4 Na2 Rc2 Qf4 Rd4 Qe5 Qd6 Qf4 Rdc4 Qfg3 Qf4 Nd4 Qe3 Qd6 Qee5 Qg2 Ra4 Qh3 Rb4+
qBkn1bN1/Q3q3/1q2RR2/4n2b/N2P3B/bQN5/KrN1PP2/Bb3B1r w - - 0 1 illegal: No possible last move
1KRR1qr1/n2BN1P1/Q1nR1n2/NQQ3Bb/5bPn/qR4Pk/r5q1/2Q5 w - - 0 1 illegal: No proof kernel
bbQ4b/3n1RPQ/1Qrkq1bB/1K1n3B/1R2P1Q1/1B3b2/r1P5/1Bb1NN2 w - - 0 1 illegal: No proof kernel
1n2N3/N1BR2Bk/1brn3n/1b1bqP1K/bPN1QN1P/2r4n/3Q2BR/2B5 w - - 0 1 illegal: No proof kernel
r3b3/1n2P1RB/4PQQb/n1N3nq/1n4kN/1NBQ1N2/1b1QP2K/1r3b1R w - - 0 1 illegal: No proof kernel
rNb1Bk2/QPB5/N1N1p3/1r1PQ1b1/RR2q2K/6n1/2RPnN2/2rR1n1b w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 a5 Kf2 h5 Kg3 c5 b4 a4 g6 e6 b6 c4 f6 c3 f5 a3 f7+ Ke7 b5 a2 f6+ Kd6 g7 c2 b7 Ra6 b6 Ra7 Nh3 Nc6 b8N Ne5 b7 Ra5 Ba3+ Rc5 Nf2 c1R Bb5 Nd7 Qa4 Be7 f8Q Qc7 f7 Rc4 Nc3 Nb6 Be8 Nf6 g8N Rb4 Qg7 Rbb5 f8R Nc4 Kh4 Ne3 g4 Ne4+ g5 Nf1 Qa7 Neg3 Rf4 Qa5 Qf6 Qa4 g6 Qe4 g7 Bd8 Ne7 Bc7 Rd1 a1N g8R Nb3 Rgg4 Nd4 Na4 Nde2 Nec6 Rg8 Bb2 Rc1 Nc5 Rf8 Nca6 Rh8 Kg5 h4 Bc3 h3 Ba5 Rf8 Kh4 h2 Rg1 h1B Qg5 Qe5 Ra4 Qe3 Rgb4 Rg8 Nd8 Qe4+ Qf4+ Ke7 Bb6 Qg2 Qe5 Kf8 Ndc6 Bd6 Bc7 Qf3 Qb2 Bf4 Qbd4 Qe4 Qe5 Nh5 Rg3 Rh8 Rc3 Nhg3+ Kg4 Rg8+ Kh4 Bd7 Bh5 Rh8 Rc2 Rg8 Na5 Ke7 Bf7 Rc8 Be8 Kf8 Nbc6 Ra8 Ncb8 Bc8 Nac6 Bg5+
k1N2qqQ/3R1Q2/4r1bn/r3q1N1/Pn3B1N/B1N1bKp1/P5P1/1B1rBR2 w - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 c4 a5 cxd5 a4 b3 g4 bxa4 Qd6 Qc2 Qf4 Qd1 Qg5 hxg5 Bg7 Ba3 Bh6 Bc1 Bf8 Ke2 Kd8 d4 b5 f4 h5 f6 c5 g6 Kc7 g7 Kb7 d6 e5 f7 e4 d5 c4 f5 h4 d7 h3 d8Q b4 d6 h2 d7 c3 f6 b3 Be3 g3 Bf4 b2 Nh3 e3 Ng5 c2 Qd5+ Nc6 Nc3 c1R Kf3 b1Q Bd3 e2 Rd1 Qb3 Bb1 Bc5 f8B h1Q f7 Nh6 g8N e1Q Ne7 Be3 Qe8 Ra7 d8B Bf5 Nc8 Ka8 Ba5 Bg6 Ba3 Qb8 Qde5 Nb4 Rd7 Rd1 f8N Qh3 Q8e6 Qf5 Qf7 Rg8 Qh8 Ra6 Nfe6 Re8 Nd4 Qfe5 Nf5 Ree6 Nh4 Qg7 Bb6 Ra5 Bd4 Qg8 Bc5 Bg1 Bf2 Qee5 Be1 Be3 Ne7 Qd5+ Be4 Qbc8 Bd2 Qcd8 Nc8 Rc1 Rb1 Qdf8 Ra1 Rc2 Rf1 Rc1 Be1 Rd1 Qfg7 Nc6 Qf7 Qe5 Bb1 Nb4
1r2nK1Q/4qn2/2rNqB2/P4PbN/1q1NbPQ1/2B1R3/1b1BR1pk/6NB w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 Kh4 f4 g5 d4 c5 a4 b5 d6 e6 h6 c4 h7 c3 d5 g4 d7 g3 a6 b4 d6 b3 a7 c2 a5 b2 Na3 b1Q Bd2 c1B Nc2 Qbb6 Bg2 Qb7 Ra2 Bh6 Nd4 Qdb6 d8N Qf3 d7 Bb2 Nf7 Qb4 d8B+ Bg5 Nd6 Qfb3 Bf6 Na6 h3 Rb8 a8N Qc2 Nc7 Qcb3 Nce8 Nc7 Ng7 Nh6 Nh5 Bb7 Qf3 Rhe8 h8B Be4 Ra3 Rec8 Rh2 Ne8 Bh1 Rc1 Re2 g2 Bhg7 Qa2 Rae3 Rc6 Rc3 Bc2 Re1 Qac4 Be7 Qa3 Nb3 Qab4 Nf6 Bd3 Qd1 Kg3 h4 Rcc8 h5 Rc6 Qg4+ Kh2 Re4 Ng8 h6 Rbb6 h7 Rb8 h8Q+ Nh6 Nh5 Bc2 Bd8 Qe2 Bb6 Bb1 Bd4 Bc2 Rf3 Qe3 B4c3 Qa7 Rd3 Qe7 Re1 Bb1 Nd4 Bc2 Ke4 e5 Kd5 e4 Bf6 Bb1 Rf3 e3 Rg3 e2 Rf3 Qd8 Ke6 Nf7 Rf2 Qc8+ Ke7 Qd7+ Kf8 Bd3 Rd1 e1Q Rc1 Qee6 Re1 Qd8 Re3 Be4 Rfe2 Qde7+
3QN1B1/1B1BK3/4qnR1/PPkpr2Q/q5PN/6nr/QQrq4/2Bb1Rb1 w - - 0 1 illegal: No possible last move
q2QB3/1Q1n2P1/q3b3/1BrP3n/r1N1R1Q1/P2KbpR1/q1N2Q2/3kB1nB w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 d4 Kd7 Kd2 h5 e4 c5 g4 b5 a3 f5 e6+ Kd6 e7 f4 e8Q b4 g6 h4 g7 c4 a6 h3 e5+ Kc7 d6+ Kb6 g5 Ka5 d7 c3+ Kd3 c2 a7 Ka4 e6 Kb3 g6 h2 e7 Rh6 Qe1 Rh7 Qf2 Nf6 Nf3 Nh5 Rg1 h1Q Bd2 Qa5 d8Q Qa6+ Qb5 Be6 g8Q Nd7 e8B Bh6 Ne1 Kb2 g7 b3 Rg3 Qd5 Bb4 Kc1 Qh8 b2 Nd2+ b1Q Nc4 Rc8 a8B Kd1 Qb7 Rc5 Qf8 Qg2 Qf5 Qd5 Qg4+ f3 Bg2 Bc1 Bh1 Qa2 Ba5 Qdc6 d5 Rh8 Rb1 Rh6 Rb4 Be3 Qbb8 Qa4 Bc6 Qa8 Qb7 c1N+ Ke4 Qb5 Nc2 Ne2 Kd3 Qba6 Bb5 Ng1 Ra4 Rg6 Be1 Rf6 Nb6 Rf4 Re4 Ne2 Re5 Rb4 Nc4 Ra4 Re4 Ng1
2r4k/B2nrPN1/B3B3/P1R1b1q1/R4q1n/NR1Q4/p1RPQ1q1/4bbBK w - - 0 1 illegal: No proof kernel
3q4/N1Q2pb1/1R1r2Bn/1n1K2N1/1P1QP1kN/2rB1Nq1/BB3Pq1/2r1Rb2 w - - 0 1 illegal: No possible last move
bRBN1N2/4P1QQ/1b1rqB1p/6N1/1nbR1B2/5P1P/kq2qnK1/Nr2B3 w - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 e4 Kf7 c4 d5 f3 g5 Kf2 a5 e6+ Ke7 c6 Kd6 e5+ Kc5 e7 Kb4 e8Q d4 f6 h6 e6 a4 c5 a3 b6 d3 e7 a2 f7 d2 b7 g4 c7 g3+ Kg2 Qd5 c6 Bf5 c8N Be4 c7 Ra3 Nh3 Nd7 b8B Qg5 Na7 Qf4 c8N Ne5 Ba6 Qe3 Ng5 Nf6 h3 Rb3 Qc2 d1B Nd2 Nc6 Nb6 Bg7 f8B Be2 Qg6 Bc4 Nd7 Ng4 Rd1 Rb1 Nb3 Bd4 Bg7 Nf2 Bc8 Rd8 Bf6 Bb6 Rd4 Qe2 Nf8 Rd6 Bd2+ Ka3 Be1 Nb4 Qg7 Ba8 Nc6 Qe6 Qch7 Qe2 Kg1 g2 Nd8 Kb2 Kh2 Qe6 Kg3 g1Q+ Kh4 Qf1 Kg3 Rc6 Bf4 Qfe2 Kh2 Rd6 Kg2 Rd1 Rc1 a1Q Rb1+ Ka3 Rb2 Qa2 Na1 Rb1 Rbd2 Qb2 R2d3+ Ka2 Rb3 Nd5 Rb5 Ba5 Rb6 Nb4 Rb8 Bb6
k1rN3n/1n1p2bb/2QNN3/3rP2Q/qR5b/1B2KqPN/R1R1PR2/B6n w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 a5 b4 f5 c4 h5 g6 h4 g3 f4 b6 f3 b7 h3 g7 a4 b5 h2 b6 a3 c6 a2 c7 Qg5 c5 Qf4 c6 Rh3 Qa4 Ke7 Bb2 Na6 b8N Rh5 b7 Nc5 Na3 Ra5 Nb5 Nh6 g8Q Nf7 Nd4 Nh8 Nh3 Bg7 Qh7 Qh4 Rg1 h1N+ Ke3 f2 Bg2 f1Q Ne6 Qb4 Qac2 Qa4 Bd5 Qf6 Raf1 a1B Bb3 Qf8 Bd4 Bb2 Rf2 Ba3 Ra1 Qf6 Ra2 Qf3+ Kd2 Rh4 Ba1 Rc4 Qh5 Rc3 Nd8 Rb5 Na6 Bb4 b8R Bb7 c8R Ba8 c7 Nb7 Qd3 Rd5 Nc5 Ba3 Nce6 Bc1+ Ke1 Bg5 Qa6 Bh4 Qc6 Na5 Rb4 Nb7 Qf5 Ke8 Rb8 Rc4 c8N Rc3 Nd6+ Ke7 Qb6 Rc8 Qc6 Qh5 Bd1 Ra5 Kd2 Qf3 Rc4 Nc5 Qd5 Bc6 Rbb4 Nb7 Qh5 Bb5 Rc7 Bd3 N8f7 Bh7 Bb3 Rb5 Rcc2 Rbc5 Qc6 Rd5+ Nd4 Qg4 Nfg5 Kd8 Ke3 Qf5 Qb5 Qg4 Nc6+ Kc7 Nd8+ Kb8 Nge6 Ka8 Qc6 Qf3+
3q4/1n1p4/3NPQq1/2BQ1Qq1/1NRbRQb1/P5Pr/rRB3Rn/1K2n2k w - - 0 1 legal: proof: f4 c5 h4 e5 fxe5 g5 hxg5 a5 b4 c4 bxa5 c3 dxc3 Ra7 c4 Ra6 c5 Ra8 Kd2 Ke7 e4 Ke6 c4 h5 Kc2 f5 c6 b5 a3 b4 g3 h4 a6 h3 g6 h2 a7 f4 c7 f3 g7 f2 c5 Rh7 c6 Rh6 Ra2 Nf6 g8Q+ Ke7 e6 Na6 e5 Bg7 Qh8 Nd5 Nf3 Nb8 Nc3 b3+ Kb1 b2 Ng5 Ne3 Bd3 f1N Qg4 Ng2 Qf4 Ba6 c8R Rh3 c7 Ne1 Be3 Nc6 Rg1 h1Q Nge4 Rb8 a8Q Na5 Rg2 Nb7 Bc2 Be2 Nd6 Bg4 Bc5 Nh2 Qh7 Qg1 Qhf5 Qe3 Qa6 Bh8 Qac4 Bf6 Qd5 Qd2 Qfd4 Qg5 Qdf4 Kf8 e7+ Kg7 e8Q Kh6 e6 Bd4 Qe7 Kh5 Qef6 Ra8 Bd1 Ra5 Rb8 Rb5 c8R Rb4 Ra1 Rc4 Na2 Rc2 Nb4 Rf2 Bc2 Rd2 Ka2 Rf2 Kb3 Re2 Ra2 b1Q+ Rb2 Rf2 Bd1 Qd3+ Ka2 Rd2 Bc2 Qe4 Qf5e5 Qg6 Kb1 Rf2 Qef5 Re2 Rb3 Rf2 Re3 Re2 Bb3 Ra2 Bc2 Qe7 Rf2 Nd8 Nd3 Bf3 Rb2 Nb7 Nb4 Qd8 Bb6 Be2 Rc4 Bd1 Q4e5 Be2 Bc5 Bf3 Qd3 Kg4 Rfe2 Rh7 Qef4+ Kh3 Q3f5+ Bg4 Re4 Rh6 R2e3 Kg2 Re2+ Kh1 Rg2 Rh3
K1B2R1B/2Pp1r2/QNqb2b1/1R1BP3/bN1q1n2/r2P1q1k/1N6/2BnN1Q1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qa5 c4 Qc7 c5 Qd8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 c4 Kg4 e4+ Kh4 d3 a5 h6 f5 c6 g5 h7 a4 c5 f4 c7 a3 c6 a2 b6 f3 e6 f2 e7 g4 Kc5 g3 e5 g2 b7 Na6+ Kb6 Ra7 e8N Bd6 b8N Bb4 Nc3 Qf6 Nd5 Nh6 Rb1 a1Q Nd6 Qf8 Nc4 Nc5 Nb2 Ra4 Na6 Bb7 Ka7 Ba8 c8B Qf3 c7 Ng4 Nb6 Rf8 h8B Be4 h3 Kg3 h4 Ne6 h5 Nf4 h6 Bd6 h7 Ne3 Kb8 Kg4 Nb4 Rf7 Rh5 Kg3 Rf5 Ra3 Qa4 Kh4 Qa6 Nd1 Be2 f1B Rf6 Qh5 Nf3+ Kh3 Ne1 g1Q Bf3 Bg6 Ka8 Bg2 Bd5 Qf3 Rf5 Qd4 Rf6 Rg7 Rf8 Re7 Bg7 Rf7 h8Q+ Bh5 Qg8 Bg6 Bh8 Qa2 Qg7 Qac4 Qf6 Qb5 Qg5 Qc6+ Kb8 Bf1 Qg1 Be2 Ka7 Nf2 Kb8 Bd1 Ka7 Ba4 Kb8 Qcc3 Ka8 Qc6+ Bb7 Qde3 Nbc2 Qd2 Nd1 Qde3 Rb5 Qee4 Nb2 Qd4 Nb4 Qc2 Bc8 Nd1 Ng2 Qcc5 Ne1 Qc6+
4B3/nPqBnb2/rP2r1NR/2k1B1bQ/2N1qnN1/N2qP3/p4QK1/1R4B1 w - - 0 1 illegal: No possible last move
2K1r1NB/QP2R1Pb/1Q1qn1q1/qPN5/N2kB1r1/b2p1R1b/8/1RNR3n w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 e5 Kc4 a5 Kd5 h5 c4 h4 g4 d6 b4 h3 f4 h2 b6 e4 b7 a4 c6 e3 f6 a3 c5 e2 g6+ Ke8 g5 e1Q f7+ Ke7 g7 a2 f5 Ra3 b5 Qd7 c7 Qd2+ Bd3 Ra7 c6 Qc2 g6 Kf6 Bb2+ Qc3 Qa4 Rh7 Be4 Be7 f8N Nh6 Ne2 Ng4 Nc1 Rh8 Rd1 h1B Ne6 Nf2 Nc5 Ra8 Qa7 Rh4 Qb6 Rg4 g8N+ Kg5 f6 Kf4 f7 Ke3 f8R Qc2 Rf4 Bf3 Bc3 Nh1 Bh8 Bg2 g7 Bh3 Nc3 Qd8 Rf7 Bf5 c8R Bh7 Ke6 d5 c7 d4 Rff1 Nc6 Rb1 a1Q N3a4 d3 Rf2 Kd4 Rf3 Qg2 Qa7 Qf8 Re8 Nd8+ Kd7 Qc3 c8Q Qa5 Qc6 Qf6 Qb8 Qd6+ Kc8 Qgg3 Qb6 Qg6 Nd7+ Bc5 Re7 Q3d6 Qa6 Bb4 Ndc5 Ba3 Qb6 Nf7 Qd8 Qd5 Qb6 Qe5 Kd7 Qg3 Q8c7 Re8 Qa7 Nd8 Kc8 Q3d6 Qcb6 Ne6+
5N1k/n2R2bq/5n1n/1n1Br1PK/B1N1B1NP/Q1rb1P2/p3Q2N/R1B1n3 w - - 0 1 illegal: No proof kernel
3bn3/1NPP3p/QQ1R2nk/1R1QqB2/1PN1Q3/3r1b2/1n2RR1r/1n2BnK1 w - - 0 1 illegal: No proof kernel
3rqQ2/1p3PBN/rnB4n/r1K5/1BRPr3/1Q2Q3/3PrR1b/kbB2Q1N w - - 0 1 legal: proof: g4 d5 e4 a5 b4 h5 bxa5 f5 gxh5 d4 exf5 d3 cxd3 Qd6 d4 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 e5 a4 c5 f4 g5 h4 e4 a6 g4 a5 e3 h6 e2 h7 e1R h5 g3 a7 g2 a6 Qa5 h6 Re8 f6 Qb6 f5 Re4 f7 Bg7 f8B+ Ne7 f6 Bh3 f7 Rh4 Nf3 g1R Ra4 Kc6 Bg2 Re1 Nc3 Re2 Qb3 Ng8 Ng5+ Rhe4 Nd1 Qd8 Rf1 Bf5 Nf2 Be5 Nh1 Bh2 Rf2 Nd7 Be7 Qf8 Qe3 Rd8 a8Q Qe8 a7 Kb6 Kd5 c4 Bb4 Kb5 Qb8 c3 a8Q c2 Qbg3 Bg6 Qab8 Bf5 Qbf4 Ra8 Qb3 Ra5 Qge3 Nb6+ Kd6 Nf6 Bf3 Ng4 Bg2 Rg8 h8Q Rf8 h7 Nh6 Qg7 Rg8 h8B Bg6 Bb2 c1R Qf8 Ra1 Bc1 Ra6 Bg7 Rh8 Qd1 Kc4 Nh7 Rg8 Qf1 Bf5 Qeg3 Rh8 Bf3 Kb3 Kc5 Kc2 Qfg5 Kb1 Qe3 Ra2 Qb3+ Ka1 Qgg1 Re6 Qg5 Bb1 Bc6 R6e4 Qge3 Qc8 Qd6 Rd8 Qf8 Qe6 Ba5 Qe8 Rc4 Ra4 Bb4 R4a5+
R3b1r1/2bBN3/1bQ2QR1/K2QP3/P1r5/2Q1pP2/bn3B2/qrnNNk1N w - - 0 1 illegal: No possible last move
7b/1q1kB1pB/P2rNQr1/r5Qb/2R4r/R1NBBbn1/N1Pn2P1/K4N2 w - - 0 1 illegal: Other
2Bnr1R1/2QN1P2/K1P2BB1/1n1Rp2N/N1r2bB1/1rPq1n2/Q2N1n2/1b1k4 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 h5 Kc4 e5 g4 a5 b4 d6 f4 a4 b6 a3 Kb5 d5 g6+ Kf6 c3 a2 b7 h4 g5+ Ke7 g7 d4 f6+ Ke6 f7 Kf5 c6 Ke4 f5 d3 g6 h3 f6 h2 Nd2+ Ke3 Qa4 Be7 f8N Na6 b8Q Bd6 Ne2 Rh7 Nd7 Kf2 Qc7 Ke1 Bh3+ Kf2 Rd1 h1N Nf4 Be7 Nc5 Nh6 g8B Nf7 g7 Rh4 Bh7 Bf5 Nh5 Ke2 g8B Rc4 Bg6 Nf2 Kb6 Qd5 b5 Nd8 Bg4+ Qf3 f7 Bg5 B8h7 Bf4 Qa3 Nh3 Na4 Ng1 Ka5 Rc8 b6 Rb8 Rb1 a1R b7 Ra8 Qb2 Ra3 b8N Rb3 Nd7 Be4 Qa2 Rab8 Nf1+ d2 Ba3 Bf5 Be7 Ra8 Rbc1 Bb1 Bf6 Rc8 B6f5 Ra8 Bhg6 Rab8 Bh3 Qd3 Bhg4+ Nf3 Be6 Nb4 Bef5 Nc2 Ka6 Na3 Rc2 Ne6 Rb2 Re8 Rc2 Nd8 Rb2 Rb8 Rb5 Rb7 Rd5 Rb3 Rc1 Nb5 Be6 Bc2 Ra1 d1N Nd2 Nf2 Rg1 Nd6 Ndc5 Bb1 Bc8 Nb5 Nd7 Bg5 Rg3 Bf4 B6f5 Rh8 Bh3 Re8 Rg8 Qd4 Bg6 Kd1 Bg4 Qd3
1R1QN3/K2Pn1nr/b1B2Bn1/3bB2P/4b1pQ/N5P1/rN1q2Nn/R1B2k2 w - - 0 1 illegal: No proof kernel
kr2NQ1N/2P4Q/2rb1PrP/B6n/2Br4/n1n2RpR/b2KNB2/3B1q1N w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 g5 f4 d5 b4 Kd7 h4 Kc7 c6 a5 c5 e5 f6 e4 f7 d4 f5 a4 h6 g4 f6 d3 h5 e3 h7 e2 h6 a3 Nd2 g3 Ne4 a2 Be3 Bh3 b6+ Kc8 c7 Kb7 c8B+ Kc6 b7 Bd7 Rh3 Bd6 f8Q Na6 b8B Nc7 Qb1 Nd5 Bc7 Rb8 Ba5 Be6 Nf2 Nc3 Kd2 e1R Nh1 Rc1 Bf2 Ne7 Ne2 Rg8 h8N Ned5 Qc2 Bf7 Bg4 Kb7 b5 Nf4 c6+ Ka8 b6 Nh5 Rb1 a1N Rb3 Rg6 Ra3 Rc8 Bf3 Ba2 b7+ Kb8 Qb1 Nc2 Bg4 Qb6 Bf3 Ka7 b8N Ka8 Na6 Rb8 Rb3 Na3 Nc7+ Ka7 Ne8 Ka8 Bg4 Qb5 c7 Qf5 Rb5 Qf3 Rf5 Qg2 Rf3 Qg1 Ke3 d2 Qf5 d1R Qd7 Rd4 Qh7 Re4+ Kd2 Reb4 Bf5 Rc4 Bc2 Rc6 Bb3 Rb1 Bd1 R1b4 Nf4 Qg2 Bc4 Qf1 Ne2 Ra4 Bf7 Rh4 Bc4 Rd4+
1B1rb1k1/2P2pN1/2P3n1/QBQ4r/2brRn2/KN3B2/5Pqn/RB2rQ1Q w - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 d5 dxc5 b5 a4 d4 axb5 d3 e3 Bg7 Ra4 Bd7 Ra1 Bd4 exd4 Bc8 Kd2 Kf8 Kc3 h5 Kb4 a5+ Ka3 e5 c4 a4 g4 d2 b4 h4 g6 h3 b6 e4 g5 e3 g7+ Ke7 d5 e2 g6 e1R c6 h2 d6+ Kf6 c7 Rh6 b7 Re2 c5 Rh8 d7 Ra6 b5 Ra8 b6 Re4 Nh3 Ke7 Ng5 Re1 Bb5 Nf6 g8B Kf8 g7+ Ke7 Ne6 Nc6 b8Q Rh5 Bh7 Qg8 Qa7 Nd5 Be4 Ne5 Bf3 Nf4 Rg1 h1R Rg4 Neg6 Rh4 Re4 Qf1 d1B Nd2 Be2 Nb3 Bc4 Bb2 Bb7 Be5 Rd8 Rg4 Rd4 Qa8 Nd3 Re4 Bc6 Bh2 Ndf4 Bg3 Qh7 g8B Qg7 Bh7 Qg8 Ng7+ Kf8 Qe2 Re1 Qf1 Rb8 d8Q+ Be8 Qdd5 Rc8 Qa5 Rd8 Kb4 a3 Qf5 a2 Ka3 Rh4 Q5h3 Rh6 Qhh1 Rh5 Re7 Ne5 Bb1 Neg6 Re4 Qh7 Bh4 Kg8 Bf6 Qh6 c6 Qg5 b7 Qg2 b8Q Re3 Qba7 Re1 Bd3 Rf5 Qc5 Rh5 Rc1 a1N Bb1 R4d7 Bd4 Nc2+ Kb2 Ne3 Ka3 Rd6 Qg5 Ng4 Bd3 Nf8 Ra1 Rb8 Ba7 N8g6 Bb1 Rd4 Qc5 Rbd8 Bb8 Nh2
qbB4b/r1p2Qn1/nQ1R4/1Q2N2b/1P1N2N1/n2Nr2k/R1P2P2/BKQ4n w - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Ke7 b4 a5 h4 d5 f6+ Ke6 h6 Kf5 f7 g5 b6 d4 h7 g4 h5 a4 h6 d3 e6 g3 b7 g2 e7 a3 e8Q a2 Qb5+ Bc5 f8Q+ Nf6 Ne2 Kg4 Nf4+ Kg5 Na3 g1N Bh3 Kh4 Qf7 Be6 Bb2 Bg4 Kc1 Na6 b8Q Re8 h8N Nh5 h7 Re3 Q8b6 Ra7 Bd4 Ng7 Nhg6+ Kg5 h8N d2+ Kb2 Qa8 Nd3 Ne2 Qc1 Ng3 Rd1 Nh1 Nge5 Bh5 Bc8 Kh4 Ng4 Kh3 Bc3 Bd4 Ng6 Bc5 N6e5 Bd4 Rb1 a1B+ Ka2 Bc5 Rb2 Bd4 Kb1 Bc5 Re1 d1N Ra2 Nb2 Rd1 Nc4 Bd4 Bb2 Rd2 Bc3 Rd1 Bd2 Ba1 Bc3 Rd2 Re2 Qh6 Na5 Nc6 Rb7 Nb2 Ne6 Qhh7 Ba7 Nac4 Bh8 Nc4e5 Re3 Qhg6 Ng7 Rd5 Nc4 Nd4 Bb8 Qgb6 Ra7 Nbd3 Ng3 Rd7 Nh1 Rd6 Na3+
K1Q5/bpB2P1n/4R3/1R3RbN/n5r1/P4bQb/RBB1N2P/qB2rkn1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 Kb5 Ke4 c4 d5 f4 e5 a3 g5 c6 d4 a6 d3 c7 d2 Kb6 Ke3 c5 Kf2 h6 g4 c6 g3 f6 g2 h7 e4 a7 e3 f7 e2 f5 e1B f6 Bb4 f8R Qd7 Nh3+ Ke3 Qb3+ Bc3 Nf4 Kf2 Ra2 g1N Nh5 Qd3 Bb2 Qc2 Bd3 Be5 Nc3 d1B Ne2 Qb1 Bc2 Bb4 Qg3+ Kf1 f7 Be6 c8Q Bf5 c7 Bd2 Re8 Qa1 Re6 Nf6 Bb1 Rg8 h8B Bef4 Bg7 Nh7 Bge5 Na6 Bd6 Rb8 a8R Nc5 Ra5 Rg4 Ka7 Bc1 Rb5 Na4 Nd4 Rg8 Re8 Bfe3 Qd8 Bh3 c8B Rg4 Bcf5 Bf2 Re7 Bg5 Bc7 Be2 Bfc2 Ke1 Qf8 Re8 Re4 Re5 Qc8 Re7 Rf4 Bf3 Ka8 Re5 Rf5 Re8 Qd6 Bfe3 Qe5 Kf2 Qf4 Ne2 Re1 Ng1 Re2+ Kf1 Qg3 Bd2 Ree5 Ba5 Re7 Bb6 Re3 Ba7 Re2 Rd8 Re6 Rd6 Ne2 Rd1 Rbb6 Rc1 Rbb5 Re1
k1N4n/PrRr1P2/B5Q1/p1q5/2b1PB2/bQKQQ3/Bb3RN1/2Bb1n1n w - - 0 1 illegal: No possible last move
2q3B1/4NK1n/r1Q1Q1R1/1N1R4/b2P2rP/BQ1bp1Rn/1b1k2Pq/2Rb3Q w - - 0 1 illegal: No proof kernel
B2n1QrQ/q1Rn4/3Rbb1N/1N1Pb1P1/Rp6/1k4N1/q1rR1BPb/3N2K1 w - - 0 1 illegal: No possible last move
8/BNbq4/1QR1Q1Qn/NPK2R2/4pRPQ/1BPbqR2/4rbr1/2b3kn w - - 0 1 illegal: No possible last move
8/2N1NqR1/1nrk1n1Q/pB3RQQ/P1b1rb2/R4b2/q1PP4/2R1BQKb w - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 hxg5 d6 b4 Na6 bxc5 Nb8 cxd6 Bh6 Nh3 Bg7 Ng1 Bf8 g4 Kd7 f4 a5 Kf2 b5 a4 h5 g6 e5 f6 b4 g7 b3 f7 h4 f5 b2 f6 e4 g5 h3 g6 h2 Ne2 Qb6+ Nd4 Rh3 Qh5 Qc7 Bb5+ Nc6 Nf5 Nh6 g8Q Ba6 g7 Rc3 Na3 b1B Ne7 Bb7 Qh7 Ba2 g8R Bc4 Bb2 Re8 Rg7 Ng8 Rhc1 h1B Q7h6 e3+ Kg1 e2 Ra2 Ke6 d7 Ne5 d8Q Nd7 Raa1 Nb6 Ra2 Rh3 Bd4 Rc3 Bf2 Bbf3 Be1 Qf4 Bc6 Qc7 Nb5 Qd7 Nc7+ Kd6 Rh7 Bg7 f8R Bh8 f7+ Nf6 Ra3 Bg7 Ned5 Re4 Ne7 Bh8 Bb5 Bg7 Qe3 Bh6 Rg7 Bf4 Qf2 Be6 Qf1 Rc6 Rfg8 Ba2 f8Q Bc4 Rg5 Nbd5 R8g7 Nb6 Qc8 Qe8 Qcg4 Qg6 Rf5 Qf7 Bh4 e1Q Qgg5 Qe2 Be1 Qd3 Qfh8 Qb3 Q8h6 Qa2
RQ3rBk/2Q2P2/r1QB2B1/1b2K2n/Pn1pR3/P1b1b1qq/3bN3/2BQN3 w - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 f5 exf5 a5 d4 a4 dxc5 a3 bxa3 Qb6 a4 Qd8 Kd2 Kf7 Ke3 e5 Ke4 b5 f4 g5 h4 Kg7 f6+ Kh7 f7 g4 f5 b4 f6 b3 h6 d6 h5 g3 c6 b2 c7 g2 Bc4 Qd7 Na3 b1Q Rh4 Qdb5 Ne2 Bh3 c8B Ne7 Bf5+ Ng6 Bce6 Be7 f8B Qa6 Kd5 g1B Re4 Bd8 Be7 Re8 Bg8+ Kh8 f7 Bf1 h7 Rf8 Ke6 d5+ Bd6 d4 Kd5 Nh4 Bg6 Qd3 Ke6 Na6 Kd5 Nf5 Ke6 Qc3 Kd5 Kg7 h6+ Kf6 h8Q+ Ng7 h7 Qg3 c4 Be7 c5 Be3 c6 Qd3 c7 Ra7 c8Q Nb4+ Kc5 Qb3 Qc7 Ra6 Rb1 Qe6 Rb2 Qeh3 Nc2 Bd8 a3 Be7 Nc3 Bb5 Ne1 Bd2 Ne2 Be3 Rg4 e4 Rc2 Bd2 Rh4 e3 Re4 Kg5 Rb2 Nh5 Qf6+ Kh6 Qf3 Kg7 Qh1 Nd3+ Kd5 Bg5 Rb4 Kh8 Rb2 Be8 Rb8 Bb5 Ra8 Bh6 Rf4 Nb4+ Ke5 Qg1 Qhc6 Qgg4 Ng3 e2 Re4 Bc3 Nd3 e1B Ne2 Bed2 Ne1 Bhg5 Rd8 Bge3 Ra8 Qgg3+ Rf4 Kg7 Bc2 Bd3 h8Q+ Kg6 Bh7+ Kh6 Bb1 Bb5 Bbg6 Rd8 Qhe8 Kg7 Bg8 Kh8 Qf8 Qg1 Re4 Rb8 Qfc8 Qgg2 Q8b7 Rf8 Qbb8 Qgg3+
2r1Rn1k/QQR1P2B/R1nq2p1/r3Nq2/1P1P2RQ/4Nr1K/6r1/b1BQ3b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 f5 Kg2 Kf7 d4 a5 e4 c5 b4 a4 h4 f4 h6 c4 d6 c3 h7 c2 h5 a3 h6 a2 d7 f3+ Kh3 f2 b6 Nf6 e6+ Kg6 e7 Ra4 e8R Qc7 b7 Nh5 e5 Nc6 b8Q Ra5 e6 Qd6 d8R Nf6 Na3 Bb7 e7 Nd7 Nc4 Rg8 h8Q Kf7 Bd3 f1R h7 Rf3+ Kg2 Ba8 Rh4 Bb7 Ne3 g6 Rg4 Bh6 Rc8 Nf8 Rc7 Bg5 Bf5 Bh4 Bd3 Be1 Qa7 Bc3 Qe5 Ba8 Qe4 Kg7 Bc4 Kh8 Qd5 Bb7 Qb5 Ba8 Qbb7 Bb2 Ne2 Bc3 Nf4 Rg5 Nd3 Ra5 Ba3 c1Q Ne5 Qb1 Bc1 Qf5 Bd5 Rf2+ Kh3 Rg2 Rb1 a1R Rb2 Kg7 Ra2 Kh8 Ra4 Ra3 Be6 Rc5 Ra6 Ba1 Bf7 Raa5 Bb3 Rg7 Bg8 Rf7 N3c4 Nb8 Rcc8 Re2 Qb5 Qf4 Nb6 Kg7 Nbc4 Bh1 Qbb7 Rg2 Ne3 Qe4 Rcc6 Rff2 Rcc8 Qf5 Rcc6 Rcb5 Rc4 Rc5 Rc3 Rc8 Rcc6 Kh6 Rc7 Nc6 h8Q+ Nh7 Qf6 Nf8 Qg5+ Kg7 Bh7 Kh8 Qh4 Rf3+
1B4Q1/1PqP1rn1/1P2Nn2/1NrR2R1/1b5k/BK2p2n/Q2Bnq1N/1B2Nb2 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 Kf6 d4 e5 Kd2 a5 Kc2 g5 f4 c5 d6 a4 b6 g4 d5 c4 h6 g3 h5 g2 h7 e4 b5 a3 d7 e3 h6 a2 b7 c3 d6 Ra6 b6 Qe7 d8Q Bg7 Bd2 Ra8 Qe2 Ra3 Rh5 Ra6 Nf3 g1Q Na3 Ra5 Rd1 Ra8 Kb3 c2 Rg5 Qf2 Ne1 Ra5 Nb5 Kf7 f6 Na6 f5 Nc7 Bg2 Ne8 Be4 Be6+ Qc4 Qc7 d7 Bf8 Qa8 Bc5 Qa6 Kf8 f7 Ke7 f8N Ng7 f6+ Kf7 Ng6 Bb4 Nh4 Bd5 Nhf3 c1N+ Kb2 a1N Nh2 Be6 Bb1 Ne2 Qa7 Nc2 Kb3 Ng1 Qa6 Kf8 f7 Ke7 f8N Bh3 Ne6 Nf6 Qa7 Rc8 h8B Bf1 h7 Rf8 Qa8 Rf7 Qg8 Bc3 Qa4 Nh3 Qa2 Bb4 Bc3 Qcg3 Rdd5 Qc7 Bd2 Nd4+ Kb2 Ne2 Kb3 Ngh5 Bg7 Ra6 h8B Ra5 Nc3 Rc5 Nb5 Nh7 Bb2 Ng7 Ba3 Kf6 Rgf5+ Kg6 Rg5+ Kh6 Ng2 Nf6 Ne1 Nf5 Rg6+ Kh5 Rg5+ Kh4 Bg7 Ne4 Be5 Nf6 Bd6 Ng7 Be5 Qc6 Bb8 Qc7
R1Rr3N/1r1Q1R1K/q2pqP1q/4b3/1Q3B1b/rRQ2Q2/2NPBP2/2k2b1n w - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 Nf6 b4 Bb7 b6 Na6 c5 Bc8 c6 Nc5 b5 Nb7 cxb7 Ng8 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Ke4 g5 b8R a5 h4 c5 h6 d6 h5 c4 b7 a4 h7 c3 b6 g4 h6 g3 Nh3 c2 Na3 g2 Bd3 g1R Qg4 Ne7 Qf3 Rg7 Nb1 a3 Ng5 a2 Nf7 Ra3 Bb2 c1Q Be2 Qf1 Rh4 Be6 Rc8 Bc4 b8R Qh1 b7 Qa5 Rh3 Qa6 Ra8 Rhg8 Nh8 Kg5 Bd1 Bf1 b8Q Rf7 Qb5 Bg7 Ra7 Rd8 Be2 Bf6 Qd7 Rg7 Rg3+ Kh4 Rac7 Bg5 f6 Nf5 Bd4 Re7 Be3 Qh2 Bf4 Qh3 Kd5 e4 Qc3 Rf7 Ke6 e3 Rf3 Kg4 Rb7 Ra4 Na3 Ng3 Nc2 Bh4 Ra7 Ra3 Raa8 Qh2 Rb1 a1B Rb7 Rg7 Rbc7 Rg5 Kf7+ Rf5 Kg6 Nh1 Qb5 Bb2 Qbb4 Rb5 Rf7 Rb7 Bb5 e2 Qe5 Re8 Rb3 e1Q Qec5 Be5 Qcc3 Rd7 Bd3 Rdd8 Bc4 Bg5 Kg7 Ng3 Ng6 Qh4 h8Q Bd4 h7 Re7 Qb7 Nh1 Qbb4 Rb7 Qe8 Qe6 h8Q Be5 Qd7 Qh3 Bd3 Kf3 Qh4 Qh2 Nh8 Qhh3 Kh7 Qh2 Bg6+ Ke2 Bd3+ Kd1 Be2+ Kc1 Qh5 Qh4 Bh2 Qf4 Qhf3 Bh4 Bg3 Qg5 Bf4 Qh6+
1Q1NB1b1/KB2qb1b/QN4p1/2Nb3k/rRn4N/r2Pb1P1/1BP3r1/R6B w - - 0 1 illegal: No proof kernel
B2nb3/2N3p1/1KNr1B2/3QB1B1/n1R1Q2N/R1q1nNr1/rn2P1PP/1nk5 w - - 0 1 illegal: Other
2B4k/r4qN1/NBRP2p1/QrQn2Pr/rbQK4/3B4/1RbbP3/2Bq2Q1 w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 h4 g6 h5 d3 h6 Na6 cxd3 Nc5 d4 Ne6 d5 Ng7 hxg7 Ba6 Rh4 Bb7 Rh1 Bc8 Kf2 h5 Ke3 c5 b4 a5 d4 f5 g4 Kf7 e6+ Kf6 b6 c4 b7 a4 b8Q c3 g5+ Ke7 b5 c2 b6 a3 d6+ Ke8 e7 Kf7 e8B+ Ke6 b7 h4 d7 h3 d5+ Ke7 Ra2 f4+ Kd4 f3 Rb2 f2 Nc3 h2 Ne4 a2 Qa7 a1Q b8Q Qa3 Qbc7 Qa2 Nc5 Rh5 Na6 Nf6 Bh3 f1R g8Q Rf5 Qa5 Qb3 Q7c7 Ra7 Nf3 Qb7 Re1 h1R Nh4 Rg1 Rf1 Rg4+ Rf4 Qb3 Qg1 Bb7 Qc4 Bc6 Bf7 Ba4 Be6 Qc7 d8B+ Ke8 Qh7 Qf7 Bb6 Bb4 d6 Kf8 Bc8 Rb5 Nf5 Nd5 Ng7 Rgh4 Qc5 Rg4 Qh6 Kg8 Bg2 Rgh4 Be4 Rg4 Bd3 Rgh4 Be3 c1B Rg4 Bcd2 Rf4 Be1 Bc1 Qd1 Rg4 Bed2 Re4 Rg4 Rf4 Rh2 Qh4 Bc2 Re4 Rf4 Qhg4 Kh8 Qe6 Ne7 Qec4 Rfh4 Rf4 Nd5 Re4 Rh5 Re7 R2h3 Rc7 Rg3 Rc6 Rf3 Bdf5 Ra3 Bd3 Ra4
B1b1rb1Q/1B2P1qR/B1Rr3P/2p2Q2/rqP1N3/N1R1KR2/8/n1b1B1rk w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 f4 Ke7 e4 Qe8 e6 Kf6 e7 Ke6 e5 Qd8 Kf2 Nc6 Ke1 Nd4 f5+ Kd5 Bd3 Kc5 Bf1 Ne6 fxe6 Kb4 Ke2 Kc4 Ke1+ Kc5 Kd2 Kd5 e8B Ke4 h4 d5 b4 f5 h6 g5 h7 c5 e7 a5 h5 d4 b6 f4 b5 d3 e6 f3 b7 a4 b8R g4 b6 a3 b7 a2 Ne2 g3 Nec3+ Kf4 Na3 g2 Bc6 Kg3 e8B g1Q e7 f2 Ke3 d2 Ba6 Qd5 Ne4+ Kg2 c4 Nf6 Qc2 d1R Bd2 Rg8 Rb1 a1B h8Q Bb2 Rc1 Qd7 Be1 Rd6 Bd5 Qa4 Bec6 Qb4 h6 Ra7 Rh3 Ra8 Rg3+ Kh1 Rf3 f1R+ Qf2 Qg3 Rc3 Qg7 Qc2 Ra7 Ra8 Rg1 b8R Qb5 Rb6 Qb4 Bcb7 Ng4+ Kd3 Ne3 Rc6 Bc1 Qf2 Nc2 Rb8 Na1 Qf1 Bb2 Ke3 Qe5 Qh3+ Qh2 Qf5 Qg3 Ba8 Qg4 Rcb6 Qg3 Bdb7 Qg7 Rc6 Bc1+ Ke2 Be6 Bb5 Ra4 Qhh7 Rh8 Re8 Bc8 B5a6 Qg3 Nb1 Bg7 Na3 Rd2+ Ke3 Rg8 Rf8 Rh8 Rf7 Re8 Qh8 Bf8 Rh7 Rd6+ Ke2 Qg7 Kf2 Bb2 Ke3 Bc1+
5qRb/5N2/qrb1k3/p3b1n1/PPKR1BNq/Q2QQ1r1/P3Q3/2NB1b1N w - - 0 1 illegal: No proof kernel
1R2nnk1/6B1/1qrQ1Q2/1nq1RpqP/2r1n2N/P1R2PR1/K3B3/1Q1b1Q1N w - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 h5 bxa5 h4 e4 h3 d4 e6 e5 Bd6 exd6 Nd7 gxh3 Qg5 h4 Nb8 h5 Qd8 Kd2 Kf8 Kc2 c5 Kb3 f5 h4 g5 a3 b5 h6 e5 h5 b4 d7 c4+ Ka2 c3 a6 e4 a7 c2 d6 g4 h7 g3 d5 e3 Nh3 g2 Be2 g1N Bb2 c1Q Nd2 Nf3 Bg7+ Kf7 Re1 Ng5 Nf3 Qb6 d8R Ba6 d7 Nf6 d6 Nge4 Nh4 Qcc5 f3 Ne8 Rc8 Bd3 d8Q Bc2 Qb1 Bd1 Rg1 Nd7 Rg3 Nf8 d7 Rg8 Rc6 Rc8 h8R Rc7 a8Q b3+ Kb2 Rc8 Nf2 Rc7 Qa6 Rc8 Bf1 e2 Nh1 e1Q Be2 Qeg1 Qg5 Rc7 d8Q Qge3 Re6 Rc6 Re5 Qf4 Qh6 Qfe3 Qhd6 Qg5 Bh6 Rg6 Bg7 Re6 Rg8 Re7 Ra2 Rec7 Ka1 Rc8 Rc2 b2+ Ka2 R8c7 Rh8 Rc8 Rc3 R8c7 Rh6 Kg8 Q8f6 Rc8 Qa1 b1N Rg6 Nbd2 Qb1 Nb3 Qad3 Nd4 Rh6 Bc2 Qf1 Bd1 Qb1 Nb5 Rg6 Qh6 R6g4 Qg5 Rf4 Nd2 Ra4 Ne4 Ra8 R8c7 Rd8 Ra7 Rc8 Ra4 Rb8 Rc4
B1n2NrR/2B5/P1b1nP2/pQ2q3/1Kn1q1NB/PR2B3/q1q1r3/NQ1N3k w - - 0 1 illegal: No possible last move
2n3Q1/1RbB4/1r1P1Q2/p3R3/PB1Kb2P/NNn1b1r1/2B1Q3/Q1bnB1kb w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 e5 exd5 e4 b4 Qe7 bxc5 Qe5 fxe5 Bf5 Ke2 Be6 Ke1 Bc8 Kf2 Kd7 Ke3 g5 a4 a5 d4 f5 h4 b5 c4 b4 d6 Ke6 h6 f4+ Kf2 Kf5 d7 g4 d8Q b3 c6 f3 Ke3 g3 e6 Kg4 d5 b2 h7 g2 c7 Kg3 e7 f2 e8Q Ba3 c5 Ra6 c6 Bb7 c8B Rb6 c7 Na6 Bd3 f1N+ Kd4 Kf2 Bd2 e3 Bd7 e2 c8Q e1B Nf3 g1B Qf6 Nc7 Bc2 Ne7 Bb4 Rg8 h8B Ne3 Nfd2+ Kg2 Qeh5 Rg3 Qg8 Nc8 Nb3 Bgf2 Rh2+ Kg1 Qhe2 Ba8 Bg7 Bc6 Bh6 Bb7 Qc1 Nd1+ Be3 Bd2 d6 Nd5 Rh3 Nc3 Rh1+ Kg2 Re1 Kh2 Ra2 Bg2 Ra1 Bg1 Bf2 Bh1 Qeg4 Bg5 Re5 Bf4 Qe2 Be3+ Kc4 Kg2 Be1+ Bgf2 N1d2 Kh2 Rb1 Kg1 Kd3 Bc6 Nc4 Bh1 Ra1 b1B Ra2 Bb2 Na3 Rb8 Ra1 Bb6+ Kc4 Bfe3 Ra2 Bc7 Kd3 Bf4+ Kd4 Rb6 Ra1 Ba2 Qb1 Bbc1 Qb2 Be4 Rb1 Bh6 Qa1 Bh1 Nc5 Bad5 Nb3 Bde4 Nc5 Nd5 Bbd2 Rc6 Rb7 Rb6 Bb4 N5c3 Nb3 Bhe3+
4nn2/R1p1n3/b2R1Pr1/K1PRQ1b1/P2NB1k1/rN2QbB1/nN2N3/n1R5 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 e5 bxa5 g4 d4 Qf6 dxe5 Qg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 Kd2 Kf7 Kc3 d5 f4 h5 e4 b5 a4 h4 g6+ Ke7 Kb4 d4 c4 d3 e6 Kf6+ e7 h3 a6 g3 c5 d2 e8N+ Ke7 e5 h2 e6 g2 a7 Rh5 g7 Rh7 Nd6 Kf6 e7 Ba6 e8Q Nd7 Bd3 Be7 Ne2 g1N Qe1 d1N Nd2 Nc3 Be4 Nf8 Nb3 Nh3 Ka5 b4 Nc4 Ng5 Nb2 Nge6 Qg3 Rh8 Qe3 Na2 Rd1 h1B Rd6 Bf3 Qh5 Rb8 a8R Rh6 Ra7 Rg6 Bd2 Bd8 Be1 Ne7 g8R Rb7 Rd5 Ng7 Bg3 Ne8 Rc1 Rb6 Rh8 Rd6 Rh6 Rd7 Re5 Rd3 Rd5 Rc3 Na1 Ra3 Nb3 Kf7 f6 Ke6 f7 Kf6 Na1 b3 Qh2 Ke6 f5+ Kf6 Nd1 b2 Nb3 b1N Nb2 Nb4 Qh5 Nc2 Qh2 Na1 Qh5 Nh7 f8N Nc3 Ne6 Nf8 N6d4 Na2 Qf4 Bg2 Qhf3 Bh1 Qe5+ Kg5 Qf2 Kg4 Qe3 Rg5 Rf6 Bf3 Rfd6 Rg6 Ng1 Ng8 Nge2 Bg5 f6 Ne7
1nR3Q1/3BQ1rP/kpb4Q/nN2n3/N2nPN1N/B1Krb3/1P5R/Qb3n2 w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 h3 a5 b6 a6 Rh5 gxh3 Rh6 h4 Rh8 h5 Qd6 Ra2 Qc6 Ra1 Qb7 axb7 Ke7 Bh3 Kd8 Bf1 Ke8 e4 Kd8 d4 c5 Kd2 Kc7 h4 g5 h6 a5 h5 f5 e6 g4 e7 c4 e8Q g3 h7 a4 h6 c3+ Kc2 g2 Bg5 a3 Rh2 f4 Qe7+ Bd7 Bb5 a2 Na3 f3 Rc1 f2 Nf3 f1B Nh4 g1N Ba4 Bb5 d6+ Kc6 Qf1 Ne2 d5+ Kc5 Kb3 Bd3 Nb5 c2 Qh1 Nd4+ Kc3 a1N Bd2 Na6 b8Q Nf6 Qbd8 Bg7 Qg8 Bc6 Bg5 Nh5 Be3 Be5 d7+ Bd6 d8N Nb3 Bg5 Nb8 Bf6 Bf1 Bg7 Bd3 Bf8 Ra5 Na7 Bd7 Bc6 Ra1 Qg4 Be2 Qeg5 Bd1 Kd3 Nf6 Nb7+ Kb4 Nc5 Ka5 Na4 Na6 Nb5 Bf4 d6 Rg8 h8Q Nb8 Nbc3+ Ka6 Nb5 Nh5 Qgg7 Be8 d7 Be3 d8N Ng3 Ba3 Na5 Qe7 Rb1 Qe1 Nf1 Ne6 Rg5 Qf4 Rg7 h7 Ra1 Qg8 Be2+ Kc3 Bd3 Qh6 Bd7 Nf4 Be8 Rd1 c1N Kb4 Bc2 Rdd2 Rb1 Rdg2 Bd7 Rg6 Nd3+ Kc3 Rd1 Re6 Rd2 Qa1 Ne5 Rd6 Be8 Rd8 Bb1 Rc8 Rd1 Bd7 Rd2 Be6 Bc6 Bd7 Rd3+
8/1bbPN1NB/1Q3pbB/3KBr1B/2Rn1P1R/r1bR4/rRr3PQ/k4q2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 d5 axb5 Nd7 d4 Nb6 dxc5 d4 Rh6 Bf5 Rh1 Nd5 exd5 Bc8 Ke2 Kd7 Kd3 e5 Kc4 h5 b4 a5 g6 d3 b6 d2 g7 e4 c6+ Kd6 b5 Ke5 c7 e3 d6 f6 d7 e2 b7 e1R b8B a4 b6 a3 b7 h4 Qh5+ Ke4 Nf3 d1B Be2 a2 Nd4 h3 Nf5 h2 Nc3+ Ke5 Rb1 a1B Bh6 Rf1 Rb2 Qe8 Nd5 Ne7 g8B Nc6 Nde7 Ra2 Bh7 Nd4 c3 Qg6 Ng7+ Qf5 Kc5 Bc2 c4 Ra3 Qh3 Qf4 Bh5 Bg6 Qb3 Ke4 Qb6 Kd3 Kd5 Kc3 c5 Rc1 f3 Rc2 c6 Qc1 Rd1 h1R f4 Rh4 Rh1 Rg4 Rh4 Qf1 Rb3+ Kd2 Rd3+ Kc1 Ba7 Rg8 b8R Bb7 c8Q Bc3 Qe8 Rg3 Qf7 Raa2 Qe6 Ba6 Qh3 Bb7 Qh2 Rh8 Ng8 Bd6 Ne7 Ba8 Rb7 Bc7 Bb8 Re3 Qc5 Rf3 Rb2 Bb7 Qb6 Re8 Ba7 Ra8 Bb8 R8a3 Rg4 Rg3 Rh4 Bd8 Be5 Rg5 Qb3 Rf5 Qb6 Bc8 c7 Ba6 c8R Bb7+ Rc6 Bc7 Rb5 Rcb2 Rb3 Kb1 Rb5 Ka1 Rb4 Rc2 Rb2 Bc8 Rc4 Bb7+
2r3k1/1b1Q1nB1/q2BR2Q/3rNR2/2r1pnpP/1KP1BB2/P3R1RN/2b3n1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 b5 h4 e5 f4 d5 f6 g5 h6 e4 a6 b4+ Kb3 g4 h7 d4 f5 d3 c3 d2 a7 Be7 c6 Qa5 c7 Qa6 Na3 Bd8 Be2 Ne7 Nc4 Qc6 Ne5+ Kf8 f7 Qb5 Rh2 Nd7 Ngf3 Ba6 c8Q Qb6 Rg2 Bb7 Qc6 Ng6 Nh2 Rc8 a8R Bg5 Ra6 Nf4 Bf3 Qb5 Qf6 Rc4 Re6 Qa6 Rb1 Rg8 h8B Bh6 Rb2 Bg5 Qc2 d1R Be3 Rd5 Qd1 Bh6 Rbe2 Bg5 Kb2 Bh6 Qa4 b3 Ka3 b2 Kb3 b1N Qb5 Nb6 Qd7 Nc8 Qg5 Nd6 Bf6 Ng6 Be7+ Kg7 f8R Nf7 f6+ Kh7 Bd6 Nf4 Rc8 Kh8 Rc5 Rc8 Qg6 Bg5 Qh6+ Kg8 Ng6 Rdd4 Rf5 Rd5 Ne5 Nd2+ Kb2 Nb3 Rc2 Nh3 Bd4 Ng1 Rce2 Nc1 Ba7 Bd2 Be3 Nd3+ Kb3 Nf4 Qe7 Ng5 Qd7 Nh7 f7+ Kh8 f8B Bc1 Bb8 Kg8 Bg7 Ng5 Bd6 Nf7
K6r/B2k1n1n/NR6/QRPp1R2/bN4B1/2PQ2R1/r2Qr1Pp/1q1Qb1b1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 e5 Ke3 a5 Ke4 h5 Kd5 e4 b4 h4 f4 h3 b6 e3 f6 d6 f5 a4 g6 h2 g7 a3 f7+ Ke7 b7 e2 f6+ Kd7 Nd2 e1R Ngf3 a2 Ne4 Rh6 Be2 Ra5 Ne5+ Kc7 Bg4 Bd7 Be3 Nc6 b8R Rg1 Nd3 Qe7 Rb6 Kd8 Rb1 Re1 Rf1 a1B Rf5 Qe8 Bf2 Be7 f8Q Rg6 f7 Nh6 g8R Re3 Qg7 Ne5 f8Q Nc4 Qh7 Nf7 Qfh6 Re2 Qhd2 Bc8 Rb3 Qf8 Kc6 Bd7+ Kb7 Ra2 Rb2 Ba4 Ka8 Bh4 Be3 Ng5 Qa7 d5 Qa5 Ra3 b5 Qe8 Nf6 Be1 Re6+ Kc8 b6 Bd7 Rh8 Nh7 Bf4 Ra4 Bb8 Rh6 Ba7 Ra2 Rb1 Qd8 Ne8 Ng5 Nc7 Na3 Na6 Bd4 c3 Ba4 b7+ Kd7+ b8Q Qb6 Qg3 Bg1 Rb2 Qb5 Rb6 Nc4 Re8 Rh3 Re3 Nd6 Rb1 Qb4 Ref3 Qe4 R1b5 Ndf7 Ndb4 Qb1 Rd3 Rh6 Qf3 Rh4 Qe4 Rh3 Rg3 Rh6 Qed3 Rh8+ Bb8 Kd8 Ba7 Nh7 Qf4 Ke8 Qfd2 Kd7+
1N2n1QQ/2n2b2/5Q1p/B1bP1B2/1rB2RK1/N1RpPn2/1PqQ2Br/5bk1 w - - 0 1 illegal: No proof kernel
B1RQB2Q/3N1qBb/1nRNrpkP/2p1P1b1/1b6/2RrBR2/1n5P/5rK1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e6 c5 Kf2 a5 d4 g5 e4 g4 b4 a4 b6 a3 b7 a2 h6 Nf6 d6 Nh7 d7+ Ke7 b5 Kf6 b6 Ng5 d5 Qc7 d8B+ Be7 d6 Qc6 d7 Re8 Nf3 Rg8 Nbd2 Rg6 Nc4 Qc7 Bg2 Ra4 Nfe5 Nf3 Rf1 Ne1 Nd6 Ra3 Qd4 Rc3 Rb1 a1B Rb3 Re3 Bh1 Bc3 Ra3 Ba5 Rc3 Bb4 Bg2 Kg5 Bd2 Bf6 e7 Kh5 e8B Bg5 Bf6 g3+ Kg1 Re2 d8Q Bf5 Kh1 Nd7 b8R Nd3 b7 Nb2 Rf4 Nb6 Rc8 Rf2 Bh8 Na8 b8R Re6 Rb6 Bh7 Bf6 Qe7 Nd7 Kg6 Rf5 Rf3 Bh8 Rd3 Be3 Qf8 Bf3 Qg8 Kg2 Qf8 Kf1 g2+ Kf2 g1R Bg2 Ra1 Q4f6+ Kh5 e5 Rc1 Bb7 Rc2+ Kg1 Rf2 Rbc6 Nb6 Ba8 Qe7 Qg7 Qf6 Qf8 Kg6 Rf3 Qf4 Bg7 Qf6 Nb8 Qe7 Qh8 Qc7 Bd7 f6 Be8+ Qf7 Nd7 Rf1+
1bNBBr1K/1NB4Q/p2p1R2/N3R1P1/1Pq1Pn1r/kb1nB3/3b1r2/1Q2N3 w - - 0 1 illegal: No proof kernel
3Brr2/6PR/3Qb1RQ/np3K2/5PP1/BQr1kbbN/pN2q2Q/B3nB2 w - - 0 1 illegal: No proof kernel
3rBB2/R2RbQP1/6p1/1Pk2qBr/1N1Rb3/1r3n1P/pnb3QN/5BRK w - - 0 1 illegal: No proof kernel
KQ1n1kb1/Nr1Pbp2/1NpN2P1/n3QBB1/5R2/P1r3N1/2B2r1n/1q3RB1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 h5 Ke3 b5 Ke4 b4 d4 h4 g4 b3 a6 b2 g6 h3 a7 h2 a3 Qh4 d6 Bd7 Kd5 Rh6 e4 Qf2 g7 Rh4 e6 Qg3 g5 Qf3 e7 Rh3 Qe2 Na6 Nc3 b1N Be3 Nh6 g8Q Qg3 e5 Rh4 Bh3 Be6+ Kc6 Qf3+ d5 Rf4 Kb7 Nb8 Bf5 Qe4 Nb5 Nc3 Rf1 Rh4 Rf4 Kd7 e8N Ng4 Bd4 Kd8 d7 Ke7 Ned6 Rh3 Bb6 Nd1 d8B+ Kd7 Qe1 Nb2 Ne2 Be7 Rhf1 h1R Ng3 R1h2 Bg1 Nc6 Qh8 Rc8 a8N Qb1 Na7 Rf2 Bc2 Bf5 Qb4 Bh7 g6 Bh4 Bg5 Nh2 Qc3 Re8 Bf5+ Re6 Qb8 Bg8 Bc2 Rf6 e6+ Ke7 Qe5 Nc4+ Nb6 N4a5+ Ka8 Nd8 Bf5 Kf8 e7+ Kg7 e8B Kf8 Bed7 c6 Bc8 Re6 Bc2 Re7 B8f5 Rb7 Nde4 Qb2 d6 Qa2 d7 Qb1 Ne2 Rc3 Nd6 Bg3 Ra4 Bf4 Ng3 Be3 Rf4 Bc5 Ndc4 Be7 Nd6 Qb3 Qe1 Qb2 Qe5 Qb1
2qr3K/1b1pRR2/p1n2P1B/k5rb/3PPQ2/2nB4/1Q1RBbR1/N1N3rB w - - 0 1 illegal: No possible last move
NQQ1Bk2/1nP1r3/NQnN1b1P/1n5R/1p1QP1bp/2q5/1B1R4/rr2N2K w - - 0 1 illegal: No proof kernel
1R1bB3/p1nPk1Nr/1QR1rbp1/r2b1R2/2K5/1P1NB1Qq/1R1PB1n1/B7 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 c5 e4 f5 Ke2 g6 Kd3 f4 b6 f3 b3 f2 h6 Be6 h5 Qc7 d6 Bd5 d7+ Kf7 b7 Bg7 h7 Nc6 b8R Ke6 h6 Qc8 Na3 Na5 Bb2 Qd8 Nc4 Qh4 Qe1 Qe7 Rc1 Bf6 Be2 f1R Bd4 Rf2 Nf3 Qd8 Nb2 Bh4 Ng5+ Ke7 e6 Qb6 e5 Qc6 Be3 Rf8 Qg3 c4+ Kd4 c3 Nd3 c2 Rcf1 c1B Rf5 Ba3 Rb1 Bb4 Rb2 Qd6 Rb6 Nc4 Rc6 Ba3 Kc3 Nf6 Kd4 Rhg8 h8B Ne8 h7 Nc7 Bg7 Bb4 h8Q Ba5 Qh5 Rad8 Qhf3 Rh8 Qff2 Rh7 Qfg1 Rf7 Bf6+ Kf8 Bh8 Re8 e7+ Kg8 Ne6 Bf6 Ng7 Qe6 Kc5 Rff8 Q1f2 Kf7 Qfg1 Na3 Kd4 Nc2+ Kc5 Ne1 Q1f2 Rd8 e8R Ng2 Qg1 Ra8 Rb8 Ke7 Q1f2 Qg8 e6 Qf7 Rb5 Rae8 Rb8 Qg8 Qff4 Rf7 Qb4 Rh5 Qb6 Qh7 Rf3 Re5 Rf5 Qh1 Nh5 Rh7 Ng7 Qh3 Kd4 Kf8 e7+ Kf7 Kc5 Re6 Nh5 Rf8 e8B+ Ke7 Bg7 Bg5 Be5 Bf6 Ng7 Rfh8 Rb1 Rh5 Ba1 R8h7 Rb2 Nb5 Qa6 Bd8 Qb6 Nc7 Kb4 Bf3 Kc4 Rg5 Rf4 Ra5 Rf5 Bd5+
N2K1N2/1R1n3N/4N2q/R3r1b1/PR3Q2/p3nRpP/1PB2QbB/1n1r2qk w - - 0 1 illegal: No possible last move
1R1bNBNk/3nr3/bRNQ3q/4ppq1/2P4Q/P1RrRB2/KP2b3/5n1N w - - 0 1 illegal: No proof kernel
1Q4r1/2NKR2N/2RP1Rqp/1bqPQ3/1k2P3/nq4nB/1N1pNR1r/2b1B3 w - - 0 1 illegal: No proof kernel
6Bn/3R3Q/BP1qP1Rp/Q1NB2r1/n5qb/2N3r1/rBpP1KNN/5b1k w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 e4 Ke7 g4 c5 b4 f5 e6 Kd6 g6 Ke5 g7 Kf4 g5 Kg3 g6 a5 e7 c4 e8N h6 e5 c3 d6 a4 b6 f4 b7 f3 d7 a3 b5 a2 Nh3 Ra3 Nf6 Qa5 d8Q Na6 b8N Bd7 Rg1+ Kh2 Qc2 Qb4 Nf4 Nc5 Bb2 Be7 Na6 Bh3 Qa5 Na4 b6 Qd6 Ng2 f2+ Ke2 Bd8 Nc5 Ne7 g8B Rb3 g7 Ng6 Qe4 c2 Bd5 Rg3 e6 Rg8 Nc3 Nh8 Qh7 Rg5 Ke3 Be7 Bd3 f1Q Ba6 Qd1 Kf2 Qg4 Raf1 Re8 g8B a1R Re1 Bd8 Re3 Ra2 Rd3 Re7 Ne3 Bf1 Ng2 Reg7 Rd4 Qd1 Rd3 Rg3 Rd4 R7g5 Ng4+ Kh3 Nh2 Qg4 Nh4 Re5 Ng2 Bh4 Rf4 Rh5 Rf7 Rg5 Rd7 Qd4+ Ne3 R3g4+ Kf3 Re5 Rg2 Rg6 Rg5 Qb4 Rf5 Rg3+ Kf2 Qg4 Rf6 Rh5 Rg6 Rg5 Nf3 Ra3 Ng2 Ra2 Nfe1 Kh2 Nf3+ Kh1 Nh2 Qe4 Rd8 Qb4 Rd7 Qg4
Q1b4B/1qNk3B/1pr2pn1/PR1nQ3/1RNbB3/1Q4B1/rq4PP/3Q1K1r w - - 0 1 illegal: No proof kernel
B3n1bK/3Q3P/3Qp3/Q2BNBRq/1B2b2q/1Q1pk3/n1rRPrP1/1n2N3 w - - 0 1 illegal: Other
B5q1/B1bQ3p/1R1r2RK/2NrB2Q/b1Pn3Q/nPkpP3/3q4/2N1BQr1 w - - 0 1 illegal: No proof kernel
BR2rQb1/N1r3Pq/1N1n1p1b/QbB5/QQBKP1q1/p1n3k1/3RP1B1/8 w - - 0 1 legal: proof: h4 c5 d4 b5 dxc5 g5 hxg5 e5 a4 e4 axb5 e3 fxe3 Ke7 e4 Ke8 Kd2 Ke7 Kd3 Ke6 b4 Ke5 g4 d5 c4 h5 b6 a5 b5 f6 g6 a4 b7 d4 c6 a3 c7 h4 g5 h3 g7 h2 b6 Ra4 g6 Ra5 c5 Ra6 c6 Qd7 Qa4 Qd8 Nd2 Kf4 Bg2 Qe7 Ra2 Bf5 c8B Bd7 c7 Be8 Nc4+ Kg3 Rd2 Rh3 Nf3 Bf7 Nfe5 Ra7 Nc6 Na6 b8Q Qe6 b7 Qg4 Nb6 Nh6 g8B Nf5 Qa8 Rh8 b8Q Nd6 Bb7 Bh6 c8Q Nc7 g7 Nd5 Qf8 Nc3 Rf1 Ba2 Bc4 h1Q Bb2 Qhh5 Rb1 Qhg6 Bc1 Qh7 Rb3 Ra5 Rbb2 Rc5 Q8a5 Bb3 Na7 Rc7 Ba8 Rg8 Q4b4 Ba4 Qfe8 Bb5 Qc6 Re8 Rb1 Ree7 Qf8 Re8 Bb2 Ba6 Qca4 Bb5 Kc2 d3+ Kb3 Na2 Bd4 Nc3 Bg1 Nb7 Bc5 Nd6 Ra2 d2 Kc2 d1B+ Kd3 Bb3 Rd2 Kh2 Kd4 Kg3 Be6 Nd5 Qc4 Rd8 Nd7 Ba6 Bf7 Ba2 Rb8 Re8 Qcb4 Bb5 Nb6 Nc3 Be6 Bd5 Bg8 Bdc6 Bb3 Bd5 Bc4 Bg8
q4R1r/r1k2KP1/2p2N1Q/1QR3bB/pn1Nq3/2q3NP/4P2B/Rbn2NR1 w - - 0 1 illegal: No proof kernel
2KQ3B/4P1R1/qQ1NP2n/1B2k1bP/5r1r/2pR1B1p/2QB2Q1/1Nqb1b1n w - - 0 1 illegal: No proof kernel
3N3n/1nBp3b/2B4n/1N1P2kN/P1Q5/rp1K2b1/qQ1NPr1Q/q3Q1RR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Qg5 bxa5 Qe7 c4 b4 Qa4 Qc5 Qd1 Qb5 cxb5 Rh6 Nf3 Rh7 Ng1 Rh8 d4 Ke7 Kd2 c5 a4 g5 h4 f5 b6 f4 e6 Kf6 a6 f3 b7 b3 e7 g4 e8Q f2 h6 g3 h7 g2 h5 c4 h6 c3+ Kd3 c2 a7 Nc6 b8Q Bd6 Bf4 c1Q Nh3 g1N Nd2 Qb2 Bg2 f1Q Qe1 Bb7 Qec8 Nd8 Qc4 Qa2 Bc6 Nf3 d5 Ba6 Bh2 Nh4 Nf4 Nb7 Nh5+ Kg5 Qc7 Rb8 a8N Bg3 Qd6 Ng6 Nc7 Rf8 Nb5 Rf7 Qa3 Rf2 Qb2 N8e7 Rg1 Nf5 Rh1 Rg8 h8N Qg1 h7 Nh6 Rb1 Rgf8 Ra1 Rf1 Rc1 R8f2 Rb1 Kf5 Nf7 Nh8 Nd8 Kg5 Ng7 Bh4 Bc7 Bg3 Qec1 Rd1 Q1c3 Rc1 Nh5 Rc2 Re1 Rc1 Rd1 Ra1 Rb1 Qe1 Qcc1 Qf1 Qe1 Qa3 Qd1 Ng8 Nd6 Ng6 h8Q Bh2 Qhe5+ Kh6 Ke3 Nh8 Qg4 Bd3 Qh4 Bh7 Nb5 Kg6 Qdc1 Nh6 Kd3 Qg1 Qef4 Bg3 Qh2 Qd1 Qfc4 Ra2 Qbc3 Qb2 Q3d4 Ra3 Qdc3 Qa2 Qa1 Qf1 Qcb2 Qh3 Rbg1 Kg5+ Kc3 Qf5 Qe1 Qfb1 Kd4 Qba1 Kc3 Kg6 Kd3 Kg5+
1R1n1Q2/2Pqr1P1/4p3/1B1k1N2/3q2p1/n3q1BK/rb1QBBPQ/bRN2Q2 w - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 dxc5 b4 h5 Bb7 a3 Ba6 axb4 Bc4 b5 Be6 Qg4 Bf7 Qd1 Bg6 hxg6 Qc8 Qd4 Qc7 Qd1 Qd8 c4 h5 f4 a5 Kf2 d5 Kg3 Kd7 b4 d4 b6 Kc6 f6 h4+ Kh3 a4 g7 a3 b7 a2 b5+ Kc7 f7 e6 c6 Kd6 c5+ Kd5 b6 d3 f5 d2 f6 Ne7 c7 Rh7 c8B Ra5 c6 Rc5 Ne2 Rc3+ Ng3 Nf5 Be2 Rh8 Bd7 Ba3 f8Q Rf3 f7 Bb2 Rf1 Rf2 Nc3+ Kd4 Be8 Qd7 Rb1 a1B Na2 Ne3 Nf5+ Kd5 Qb4 Rg8 f8Q Nc4 Qe1 d1Q Be3 Qd2 Nc1 Qd4 Qbd2 Na3 Rg1 Rh8 Qf1 Rg8 Bf4 Rh8 Bg3 Rg8 c7 Nc6 b8B Nd8 b7 Rh8 Ba7 Rg8 Kh2 h3 b8Q Rh8 Nh6 Rf7 Nf5 Re7 Qbb4 Rh4 Qbc3 Rf4 Qce3 Rf2 Qf4 Qd6 B8b5 Qc6 Bh4 Qd7 Kg3 h2 Kh3 h1Q+ Qh2 Rf3+ Bg3 Rc3 Qff4 Rc2 Rd1 Qe1 Qf1 Qd3 Bf2 Qd4 Qb4 Qc3 Rd3 Qd2 Rb3 Q2e3 Qbe1 Bc3 Qd2 Ra2 Ba6 Bcb2 Rb8 Qf3 Bad3 Qfe3 Bb5 g4+
1Rb2NN1/1NpBbP1Q/1qPn1nR1/1q1k1rp1/1B5K/Q2r4/1P6/RR1N3b w - - 0 1 illegal: No possible last move
1n1B1k2/QPp1R2R/r1rPK1p1/3nNN2/1RBq4/bb6/1P3NbQ/2N2qR1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 f5 Kf3 a5 Kf4 g6 d4 a4 h4 a3 e4 a2 d6 Be7 h6 Na6 h5 Bb7 d5 Bc8 h7 Nb4 d7+ Kf7 e6+ Kf8 Ke5 f4 d6 f3 h6 f2 b6 Ra7 b7 Qe8 d8N Qf7 Ne2 Nd5 Nbc3 Ra6 Qa4 Qe8 Nd1 Ra7 Nc6 Ra5 Rh4 Ra7 Bg5 Nf4 Nc1 Nd5 Bc4 f1B Nf2 Bd8 e7+ Kf7 Bf6 Ra8 Qa7 Be6 Bg5 Qf8 e8N Ngf6 Ng7 Bg2 Nf5 Qg7 Rb1 Re8 h8R a1Q Rh7 Kf8 Rf4 Qf7 Rg4 Qa4 Ra1 Qd1 Ra4 Qf1 Rb4 Qg7 Rg3 Bf3 Rg1 Bg2 Qd4 Ra6 Qa7 Be7 Bh4 Ra8 Bg5 Bd7 Bh4 Be8 Ke6 Nd7 e5 Bf6 Bg5 Qh8 Bh4 Bg7 Bd8 Bf6 Rg7 Nb8 h7 Bg5 Rd7 Be3 Rg7 Nf6 Re7 Bc5 Rd7 Qg7 h8Q+ Ng8 Qh4 Nf6 Qh2 Qh8 Rh7 Nd5 Ncd4 Ba4 Nf3 Nc6 Kd7 Rb6 e6 Qd4 Ne5 Bb3 e7+ Kg8 Qh3 Nb8+ Ke6 Ra6 Qh2 Rc6 Rb6 Ba3 Rb4 Qf4 Qb6 Ra6 Qa7 Qh6 e8R+ Qf8 Ree7 Qg7 Nf3 Qd4 Ne5 Kf8
3N1RNb/qpnKPp1B/2R1r3/q2NQ2N/bq4P1/4PRR1/1B2k2n/3r3Q w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Kf3 c5 Ke4 h5 d4 c4 g4 c3 a4 c2 e6+ Kd6 e3 h4 e7 h3 g6 h2 a6 Qe8 a7 Qd8 g7 Rh4 a5 Rh5 a6 Nd7 Bd3 Rh6 Nh3 Nb6 Rf1 h1Q+ Rf3 Qh2 Bb2 c1Q Qh1 Rh7 Nf4 Bd7 Nc3 Qc7 Nh5 Qcd2 Rg1 Ba4 Rgg3 Rb8 a8Q Rh6 a7 Rd8 Qb8 Nc4 a8R Ne5 Kf5 Nf6 g8N Ne8 Ra6+ Bc6 Kf4 Re6 Bh7 Bg7 Kf5 Bh8 Rb6 Kd7 d6 Ba4 Nd5 Qb4 Rc6 Qca5 Kf4 Nc7 Kf5 Rg6 Kf4 Ke6 d7+ Qd6 Ke4 Qe2 Kf4 Qea6 Ke4 Qa7 Kf4 Rc8 d8R Rh6 Rf8 Rd8 Rf1 Nf3+ Ke4 Nh2 Rff3 Kd7 Kf5 Rf6+ Ke4 Qa3 Ke5 Q5b4 Ndf4 Qaa5+ d5 Qa7 d6 Qba5+ Nd5 Q3b4 Rc4 Rg6+ Kf4 Ke6 d7 Kd6 Kf5 Re6 Rc2 Qc4 Rc3 Kc5 Rc1 Na8 Qe5 Nc7 Rc3 Kb5 Rc1 Qcb4 Rc6 Rb8 d8N Ra8 Rb6+ Kc4 Rc6+ Kd3 Qd6 Rf6+ Ke5+ Ke2 Qc5 Rf4+ Kd6 Rd4 Kd7 Rd1 Kd6 Qb8 Kd7 Ra6 Qd6 Qa7 Qe5 Nb5 Rc5 Re6 Rc6 Nc7
RrR3Q1/P2nPBK1/NBqq3p/2b3P1/k1B4B/n4R1p/R4N2/bb1r2Q1 w - - 0 1 illegal: Other
q1r1Qnb1/3R1K2/b4Q2/Pb2B1pk/2P4r/PpnBN1b1/7N/1Q2NRQN w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 b5 Ke3 g5 Ke4 f5+ Kd5 Kf7 c4 b4 e4 b3 h4 f4 c6 d6 e6+ Kg7 a3 Kh6 c7 f3 e7 f2 e8N Bf5 c8N Qd7 e5 Ra6 e6 Qd8 e7 Qb6 Nh3 Ra8 Nd2 Be4+ Ke6 d5+ Ncd6 d4 Nf6 d3 e8Q Qa6 Bb2 Qb5 Be5 Bb7 Qb1 Ra6 Kf7 Rc6 Nf3 d2 Bd3 f1B Ne1 d1B Nf2 Bg2 Rf1 Bc2 Nh1 Qa6 Ra2 Qa8 Ra1 Be4 Ng4+ Kh7 h6 Rc8 h5 Ba6 Ra2 Nf6 Nh2 Nd5 Nf5 Nd7 Ne3 Nc3 Rb2 Bg7 Ra2 Nf8 Rb2 Bd1 Rd2 Bg4 Rd1 Bd7 Rd2 Bdb5 Rd1 Rg8 Rd2 Kh8 h7 Bf6 Rd1 Rg6 Rd2 Rh6 Nhg4 Qa7+ Bc7 Bg7 Bc2 Rd8 Rd7 Bf5 Qe4 Rb8 Nh2 Qb7 Bd3 Rc8 Qg2 Be5 Qg1 Bg3 Ke7 Kg7 Be5+ Rf6 h6+ Kg6 h8Q Qa8 h7 Rd6 Qf6+ Kh5 Bf4 Re6+ Kf7 Re4 Bc7 Rh4 h8Q+ Bh7 Bd6 Ne6 Qe8 Nf8 Be5 Bg8+
2NQB2R/1kPR4/pBN1r1P1/bn2rb2/1KQQ2P1/B7/3p3Q/rnqBr3 w - - 0 1 illegal: No possible last move
1bNRb2n/1p5Q/n1Q4q/1NB1QRb1/k2r1PR1/2P4Q/2p1B1Pr/2R1K1b1 w - - 0 1 illegal: No proof kernel
1b1nNB2/NPN5/4p3/q1P1Pb1B/R1B1Bp2/q2Q1b2/rk1qn2Q/1NR4K w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 c4 h4 c3 g6 Bb7 dxc3 Be4 c4 Bb7 c5 Bc8 g4 a5 g5 Ba6 g7 Bb7 h5 Ra6 Qd5 Rb6 Qd1 Rg6 hxg6 Bc8 Kf2 d5 Kg2 Kd7 e4 Ke6 c4 Ke5 b4 h5 c6 f5 c7 h4 b6 d4 c5 d3 b5 Kd4 b7 d2 b6 a4 Nh3 a3 Be2 a2 Bh5 Qd7 Nf4 Nf6 g8B Nd5 g7 Nc6 b8Q Nd8 b7 Nc3 g6 Ne2 Bc4 h3+ Kh2 Qa4 g8N Qa5 g7 Rh7 Qc2 d1Q Nf6 Qdd2 g8B Bg7 Ne8 Be5 Re1 Be6 Kh1 h2 c8N Bd7 Qa7 Bb8 Nd5 f4 Ndc7 Bh3 Bgd5 e6 Qa6 Bf5 Na7 Rg7 Ba3 Rg2 Bb4 Bg4 e5 Qa3 Ba5 Bf5 Be4 Rf2 Nc3 Bg4 Rac1 a1Q Nb1 Q1c3 Bb6 Qca5 Rg1 Rf3 Rg2 Rc3 Qa2 Rc2 Rg3 Bf5 Rb3 Bg4 Rb4 Rb2 Ra4 Bf5 Kg2 h1B+ Kh2 Bg2 Qb5 Bgh3 Kh1 Bhg4 Qbb3 Qb5 Qg3 Rc2 Qab3 Rb2 Qh2 Ra2 Ba5 Qe3 Be1 Qd2 Bh4 Qba5 Be7 Qdb2 Nd2 Qc2 Qb5 Kc3 Qd7 Kb2 Qd3 Qcc3 Nb1 Qd2 Bf8 Bf3+
4n2k/3qBPRn/3pQ1R1/1p1P4/1B1K1P1Q/2BB4/5rRb/1bNqNnRb w - - 0 1 illegal: No proof kernel
1Q4N1/1n2R2P/BN3b2/Qbrb3p/1q4pk/1Bq2BRq/P3Q1Pn/3KB1Q1 w - - 0 1 illegal: No proof kernel
R1R3Q1/2N5/1k1qP1p1/r2rQ1BR/qp2Kn2/1r1B2PQ/QRn1P3/1n3N1b w - - 0 1 legal: proof: f4 a5 b4 e5 fxe5 d5 bxa5 g6 c4 Ra7 cxd5 Kd7 h4 Ra8 h5 Bg7 h6 Ke7 hxg7 Ke8 Kf2 Kd7 Kf3 f5 d4 c5 a4 Kc7 d6+ Kc6 d7 h5 a6 b5 g3 h4 a5 h3 a7 b4 e6 h2 a6 c4 d5+ Kb6 d6 f4 Nh3 c3 Qd5 c2 Qe5 Nf6 g8Q Rh5 Ra2 Ng4 Ke4 f3 Nf4 f2 Bh3 f1N Rb2 Nge3 Bf5 Ng2 Nd2 Nc6 Qgh8 Qf8 d8R Bb7 d7 Qd6 Rc8 Nd4+ Nd5+ Kb5 Rg1 h1Q d8Q Rg5 Qhg8 Qh7 Qdf8 Qhd7 Qh6 Ka5 Rh1 Qa4 Qh3 Bc6 Nb1 Kb5 Bf4 c1R Nd2 Rc3 Rh2 Rh5 Bg5 Rb3 Rh1 Nc2 Rh2 Nfe3 Nf1 Na3 Rh1 Nb1 Rh2 Be8 Nc7+ Kb6 Rh1 Nc2 Rh2 Rb8 a8Q Bd7 Qad5 Bc6 a7 Rb7 a8R Ra7 Qg4 Ra5 Rh4 Rh7 Rh5 Rd7 Qh3 Nge3 Kf4 Bb7 Qc4 Bh1 Bd3 Ng2+ Kf3 Rf7+ Ke4 Rf5 Qeg7 Rfd5 Qe5 Ra3 Qa2 Rc3 Nh2 Rb3 Nf1 Nf4+
n4bb1/3RQB1p/r1qp2Qq/K1Q1NqP1/2Q2P2/2RP2rB/1B5B/2bk3N w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 c4 Bg7 b4 Bf8 c5 Bg7 c6 Bf8 b6 Na6 b5 Nc5 Rh5 Nf6 Rh1 Nb7 cxb7 Ng8 b8Q Kf7 g4 e5 d3 c5 Kd2 a5 Kc3 e4 f6 Kg6 b7 a4 f7 e3 b6 a3 Qg3 c4 b8Q e2 b7 e1Q+ Nd2 a2 Qc2 Qee7 Ne2 Qc5 Bh3 Qdb6 Qa7 Qf5 b8B Ne7 Nf3 Rg8 Bb2 Qc6 Kb4 c3 Rhc1 Nd5+ Ka5 Nb6+ Be5 d6 Qb3 c2 Qc4 Bg7 f8Q Be6 Qe7 Rab8 Qg1 Bd5 Ng3 Na8 Nh1 Bf8 Qac5 Rb6 Bh2 Rg7 Nd2 Bg8 f4 Nc7 Nf3 Na8 Rf1 c1B Qg3 Be3 Rfc1 Bd2+ Rc3 Bc1 Rb1 a1Q+ Ba3 Rb8 Rb7 Qa2 Rc7 Rb6 Rd7 Qf2 Qg1 Qh4 Bb2 Qh6 Qee1 Re7 Qh4 Re2 Qhe1 Rg2 Qe7 Rg3 Qg2 Bf7 Ne5+ Kg7 g6 Qf6 Qge4 Qe6 Qe8 Kf6 g7 Bg8 Nf3 Qf7 Q4e5+ Kg6 g5 Kh5 Q5e6 Qfg6 Q8e7 Qf5 Ne5 Kh4 Bg2 Kh5 Qg6+ Kh4 Nf7 Kg4 Bh3+ Kf3 Ne5+ Ke2 Qa4 Bd5 Qac4 Kd1 g8B Be6 Bf7 Bd5 Be8 Bg8 Bf7 Ra6+
r3QBQ1/N3r2B/1R4Pr/1nNQ2Pp/K7/NR5P/rrp1k3/NQ2q1bn w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 e4 Qd6 d4 Bg7 e5 Qd8 d6 Kf8 d5 Bd7 e6 Bh6 exd7 Kg7 Ne2 Kg6 Ng1 Bf8 Kd2 Kf5 Kc2 Ke4 Kb3 f5 g4 e5 h3 c5 b6 a5 b7 h5 Na3 f4 Nf3 c4+ Ka4 c3 b4 c2 b5 Bg7 b6 Rh6 Nd2+ Ke3 Bd3 f3 Bh7 e4 g6 f2 g5 f1R Nb3+ Kf2 Rb1 e3 Na1 e2 Rb3 Nc6 b8Q e1R b7 Qb6 d8Q Qe3 d7 Nf6 d6 Na7 Qd5 Ng4 Q8g8 Ke2 d8Q Nb5 d7 Bd4 Qde8 Nf2 d8N Bb6 Rg1 Nh1 Ne6 Rf7 Bb2 Re7 Nc5 Rb1 Bg7 Rb2 Bf8 Qg3 Rb1 Qe1 Qf4 Ba7 b8N Bb6 Qb4 Ba7 Ncd7 Bg1 Nc5 Re4 Rc3 Rb3 Nc4 Bh2 Nc6 Na3 Na7 Re7 Qbb8 Rb7 Nab3 Bg1 Rb2 Nb1 Rg3 Nc3+ Ka3 a4 Rb1 Rd7 Kb4 a3 Qbb7 a2 Na3 a1R Rf3 Nd1+ Ka4 Ra2 Na1 Rc7 Qb2 Rb7 Rf6 Rb5 Rb6 Rb3 Qc1 Rb5 Rb2 Rb3 Qb1 Nc3+ Ka5 Nb5+ Ka4 Rd3 Rb3 Rd1 Qb2 Rb1 Qc1 Rbb2 Qcd1+ Kf1 Qb1 Ke2
3B2R1/2RK1pnn/P2rNPp1/B4k2/1P1bb2B/qQR1n3/1nB2N1b/3RQ3 w - - 0 1 legal: proof: g4 b5 d4 a5 b4 e5 bxa5 h5 gxh5 b4 dxe5 b3 c3 Ra7 Bg5 Rb7 Bc1 Rb4 cxb4 Bc5 Nf3 Bd6 Ng1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 d5+ Kb5 c5 e4 c4 h4 c3 a4 b2 f4 d4 a6 g6 a7 d3 a8R c2 h6 d2 f5+ Ke7 h7 Qd6 h5 Nc6 e6 Kf6 e5+ Kg5 a5 Nf6 a6 Rg8 h8B Ng4 h6 Ne3 h7 Nb8 e7 Nd7 e8R Qe7 Kc6 Qf6+ e6 Be7 Nc3 b1N Nce2 Nf8 Nh3+ Kg4 Nf2+ Kg5 Nf4 Qg7 Ra7 Qf6 Rh3 Bc5 Rc7 Rg7 Bd3 Qc3 e7 Rg8 Bd4 Na3 h8B Nh7 Bhg7 Rh8 Rg8 Nb5 e8Q Bb7+ Kd7 Qa3 f6 Ba7 Bb6 Nd4 Bf8 Be4 Be7 Ndf5 Bd8 Ng7 Ba5 Kf5 Ne6 Bd4 Qe1 d1N Rg3 Ng2 Bg5 c1B Bc2 Nb2 Bh4 Bf4 Rgc3 Bh2 Rd1 Ne3 Qe7 Ng5 Qd6 Rh5 Qc6 Nh7 Qc4 Rg5 Qb3 Rg2 Nh3 Rd2 Nf2 Bde5+ Ke7 Rd5 Qd2 Rd6 Qe1 Rb6 Kd7 Bd4 Qa2 Rc6 Qb3 Rd6+
4q1n1/Q1Q1R1Nr/N3Pn2/1PB1RrKB/B4p1r/Q3p2B/r2nP3/k4b1Q w - - 0 1 illegal: No possible last move
3k1bb1/8/P1bN2b1/1KN1B1nN/Qp1RR2N/3pQR2/3PBPr1/rR1q3r w - - 0 1 illegal: Other
5NN1/P2b3P/b4Q2/1n2q1QN/1Bp1p3/1NPnQ1Q1/1b3n1R/RK2rknB w - - 0 1 legal: proof: f4 d5 e4 h5 exd5 e5 g4 a5 gxh5 b5 b4 e4 bxa5 Ra6 Qf3 Re6 Qd1 Re5 fxe5 Bd6 Be2 Be7 Bf1 Bf8 d4 Kd7 Kd2 c5 h4 f5 a4 g5 a6 c4 a5 b4 d6 Ke6 d5+ Kf7 a7 f4 a8Q b3 h6 Kg6 c3 Kf5 h5 b2 Kc2 f3 d7 Kg4 e6 Kg3 e7 Kf2 e8N g4 a6 g3 h7 g2 d6 Nc6 a7 Nf6 h6 Ng4 Rh2 Nf6 Qd2+ Kg3 Ne2+ Kf2 Nf4+ Kg1 Nh5 f2 Qb8 Bb7 Qe3 Qc8 d8N Ba6 d7 Ng4 Nd2 b1N Ba3 Nce5 Bb4 Nd3 Ne6 Qc7 d8Q Qe5 Nb3 Be7 Nef6 Na3+ Kd1 Bc5 Ng8 Nb5 Kc2 Bd6 Qdg5 Bf8 Ba5 Ba3 Nf8 Bc1 Kb1 Bb2 Ngf6 Rg8 h8Q Rg7 Be2 Rf7 Bf3 Kf1 h7 g1N Ng8 Rf6 Bh1 Rf3 Qd2 Re3 Qc1+ Re1 Bb4 Ke2 Rh4 f1B Qhf6 Ngf2 Rh2 Bh3 Qc7 Kf1 Qcg7 Bd7 Qg3 Qf5 Q7g5 Nd1 Qce3 Qf4 Bf3 Qe5 Bh1+ N1f2+
N1Rq3b/2npRb2/r2Q3b/3p1rkN/2QKPr2/1Q1P1BP1/1BNb4/6NQ w - - 0 1 illegal: Other
3q3b/Pr3r1B/pp1Bn1r1/2NQ3Q/P1R1N1RR/2K3P1/2R1bb1B/k4b1B w - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 a6 h4 Nf6 hxg5 Bh6 b4 Ng8 b5 Nc6 b6 Na7 bxa7 Bf8 d4 Kf7 Kd2 h5 a4 c5 f4 e5 f6 b6 f5 h4 d6 c4 d5 h3 d7 h2 d6 e4 Ne2 e3+ Kc3 Bg7 g6+ Kf8 Nf4 e2 Ra2 e1R Nd2 Re5 f7 Nh6 Qh5 Rg8 Nd3 Rb8 Rc2 Bh8 Nc5 Kg7 f8B+ Kf6 g7 Re7 Nde4+ Ke5 f6+ Nf5 f7 Rb7 Bf4+ Kd5 Rg1 h1B Be5 Nd4 Bh2+ Re5 g3 Ne6 Bg2 Rf5 Rgc1 Ke5 Bf3 Bg2 Be7 Bh3 f8R Bf1 Bh1 Kd5 Rf6 Ke5 Rh6 Kd5 Kb4 Kd4 Rg6 c3 Rg4 Rf6 Kb3 Rgf8 g8B R8f7 Bh7 Rg6 Bf8 Qh4 d8R Qg5 Rd7 Qd8 Rc7 Bd7 Rc8 Bdb5 d7 Bbd3 Bd6 Bde2 Ra2 c2 Kb4 Qg5 d8Q Qf6 Re1 c1B Rc2 Be3 Qd7 Bf2 Rd1+ Ke3 Rd4 Qd8 Kb3 Bd3 Rcc4 Ke2 Rc6 Kd1 Kc3 Kc1 Rc7 Kb1 Qc6 Qe8 Qcd5 Qd8 Re7 Ng5 Nf6 Bg7 Rh4 Ka2 Re2+ Ka1 Rc2 Bh8 Rde4 Bde2 Reg4 Rfg7 Nfe4 Ne6 Bf4 Rgc7+ Be5 Rcg7 Bd6 Rgf7+
1qrR3r/2B5/rPp1N3/1PQ3b1/K1Q1NN1q/1p1R1N2/kP1r2Q1/n2B2Qb w - - 0 1 illegal: No possible last move
3Rn3/1K3N1P/nRq1p1rq/1Q2r3/qR2PP1B/Q3BR2/pN2bq1k/1B1B4 w - - 0 1 illegal: No proof kernel
k1N1nR2/Pbp2B2/4qb1Q/2P2QQq/2N1n3/4KQ1p/P1RB4/1R1rR1qq w - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 a5 fxg5 a4 h4 a3 bxa3 Ne7 a4 Ng8 a5 Bg7 Nc3 Bh6 Nb1 Bf8 g4 b5 h5 Ne7 g6 Bh6 g5 Bf8 g7 Ra6 Bd2 Re6 Bc1 Rg6 hxg6 Ng8 Kd2 h5 c4 d5 e4 Kd7 e6+ Kc6 e5 Kb7 a6+ Ka7 e7 f5 e8R b4 e6 d4 e7 f4 c5 d3 Nh3 b3 Qf3 b2 Nf2 h4 Na3 b1Q Rh2 h3 Ne4 Rh4 Nd6 Rh7 Nac4 Nh6 g8Q Nf7 g7 Qd7 g6 Ng5 Qgd5 Bb7 g8Q Ka8 a7 Bg7 Qge6 Bf6 g7 Qc6 Nc8 Nd7 Qef5 Qe6 g8R Rh4 Rgf8 Ne4+ Kd1 d2 Ke2 Rh7 Qg5 Rg7 Qdf5 Rg6 Qh6 Rg1 Bg2 Rd1 Qhg5 Qb2 Rb1 Qd4 Bh1 Qg1 Kd3 Rf1 Re2 d1Q+ Bd2 Re1 Bg2 Rf1 Re1 Qh1 Rd8 Rg1 e8Q Rf1 Qf7 Rg1 Q3h5 f3 Ke3 f2 Qhh6 f1Q Bf3 Qfg2 Bh5 Qgh2 Bg6 Qh5 Qf3 Q2g2 Qfh7 Qgh2 Bf7 Rf1 Qhf5 Q2g2 Rec1 Rd1 Rc2 Qgg1+ Kf4 Bh8 Rde8 Ndf6 Re7 Qc6 Re5 Ne8 Re6 Bf6 Re7 Nf2 Re1 Qb6 Ke3 Ne4+ Ke2 Qe6 Kd3 Qgg4 Ke3 Qgg1+
1b5R/1R1b2Bp/k3PB1p/1NBNrQ2/nP1R4/rn5b/B5KP/Rb1Q3r w - - 0 1 illegal: Other
q7/2pRrK2/Qb1R4/Br4N1/r1P1qbpk/q2RRPNN/B1N3P1/Q6b w - - 0 1 illegal: No proof kernel
B1N5/1p1bq3/1Bp2RNq/3RQ3/nQP2KPQ/qPrq4/1r6/1q1kNQN1 w - - 0 1 illegal: Other
2n5/NQ4Nb/1bb1N2p/2RP1p2/1kpq1P2/rNRBQ2P/Q3n1rK/4BQ2 w - - 0 1 legal: proof: d4 d5 a4 a5 c4 e5 dxe5 f5 g4 b5 axb5 d4 g5 Qf6 gxf6 Ra6 Bd2 Rd6 Bc1 Rd5 cxd5 Bc5 Bh3 Be7 Bf1 Bf8 e4 Kd7 b4 g5 f4 c5 Kf2 d3 Kg3 a4 e6+ Kd6 b6 g4 b7 c4 f7 a3 h3 h6 e5+ Ke7 b5 a2 b6 d2 Nf3 Bg7 f8N Bf6 Bd3 Bg5 Nc3 Na6 b8Q Nc5 b7 Nb3 Nd4 Bh4+ Kh2 Bf2 Qa8 Bd7 b8Q Bc6 Qf1 d1B Bd2 Nc1 Ncb5 Ne2 Nb3 Bb6 Be1 Rh7 Rc1 a1Q Qa2 Qd4 Na7 Rf7 Rc3 g3+ Kg2 Rg7 Rg1 Rh7 Kh1 g2+ Kh2 Rh8 Rh1 g1R Qb7+ Ke8 e7 Rg4 Rg1 Rg2+ Kh1 Kf7 e8N+ Ne7 Ne6 Rf8 N8g7 Ra8 Nec5 Kf8 e6 Nc8 e7+ Kf7 Nce6 Kf6 Nb5 Ra3 Na7 Kf7 e8Q+ Kf6 Nd2 Bda4 Nb3 Bab5 Qh5 Be8 Qhf3 Bg6 Q3f2 Bc6 Qg3 Bh7 Qe3 Rg6 Kh2 Rg3 Qa6 Ke7 Qb7+ Kd6 Nc1 Rf3 Rg6 Rg3 Rf6 Rg6 Rf7 Rg4 Rc7 Rg1 Nd8 Kc5 Nde6+ Kb4 Nb3 Bb5 Rc5 Bc6 Qd7 Rg5 Qb7 Rg2+
n1B3K1/2r2b1N/n1pb2Q1/1PPQN1RB/1NpR4/3Bq1N1/4P1pk/Br2b3 w - - 0 1 illegal: Other
2K1q3/5Q1P/1kPB1N2/2p2N1R/QpbR1B1p/3B1P2/1br1Bnbn/Rr3R2 w - - 0 1 illegal: No proof kernel
KB6/2Rn3P/RPbNb2p/QN1P2Rr/Q2B1pnb/3r2RB/1p2k3/B6q w - - 0 1 illegal: No possible last move
1BB2rBq/4N1rP/b1N3BK/1n4pp/2P3P1/1N2RQ2/1k1p1Qn1/2Nq2bR w - - 0 1 illegal: No proof kernel
1RB1RN2/knQKP3/Nb1q1b2/P7/1p5p/2n1qBRP/4R1pB/rB1bQ3 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 f5 fxe5 b5 b4 a5 bxa5 f4 g4 Ra6 Ba3 Rf6 Bc1 Rf5 gxf5 Be7 Kf2 Ba3 Ke1 Bf8 Kf2 Kd7 Kf3 h5 Ke4 g5 a4 c5 d4 Kc7 a6 Kb6 e6 f3 Ke5 c4 e4 f2 a7 g4 a8B h4 e7 c3 e8B c2 a5+ Ka7 f6 b4 f7 g3 d6 g2 h3 Qc7 d5 Qc6 d7 Bd6+ Ke6 Bf4+ d6 Qc3 f8R Qc6 e5 Nh6 Bg6 Nf5 Re8 Bg5 Ne2 Ba6 d8R Qf3 d7 Qe4 Nf4 Rf8 Qe1 Be2 Nd2 Nh6 Nb3 Bb5 Ra3 Nf7 Nc5 Nd6 Rg3 Qe2 Na6 Nc6 Rb8 Nb7 d8Q Bf6 Qc7 Ba4 Kd7 Qe3 e6 Nd4+ Bb5 f1Q e7 Rf7 Ne6 Ne2 Nf8 Qff4 Rf1 Bb3 Rf2 Nc3 Re2 Ba4 Bd2 c1B Bb1 Bd1 Bc4 Bb2 Be6 Bd4 Bef5 Bb6 Bc1 Qh6 Bg4 Rf1 Bgf5 Qe5 Bf4 Qhd6+ Kc8 Bc2 Rg7 Qdf6 Ba2 Ne4 Qg3 Ra1 Bb1 Bd1 Qe1 Qfd6 Bh2 Qec5 Rg4 Bf6 Rg3 Nc3 Bg4 Qe3 Bf3 Qde5 Kd7 Qd5+ Qd6 Nd8 Bb7 Qdc5 Bc8 Nb7 Qc7 Qd6+
3k4/Q2B3N/1R3pN1/R4Pqb/1B1Q1rpK/2qrQNPP/pN4b1/q1Q3n1 w - - 1 2 illegal: No proof kernel
3N4/B3N1k1/2R1np2/P4QrP/qr1bNPb1/p2qr2B/2pQBK2/RN4B1 w - - 0 1 illegal: No proof kernel
1q3B1k/3pNp2/B1R2nB1/2QPNr2/P4bb1/P1npnQ1K/q7/1R2NBN1 w - - 0 1 illegal: Other
5RK1/2q4p/R7/2BqP2Q/N1p2p1r/PQ3bBn/2P2Bkr/RNRBnn2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 e4 d5 exd5 e4 b4 Bd6 bxa5 Be5 fxe5 Kf8 Qe2 Ke7 Qd1 Ke8 Kf2 Kd7 Ke3 c5 Kf4 f5 d4 b5 g4 b4 a3 b3 a6 e3 a7 b2 d6 Kc6 d5+ Kb6 d7 e2 g6 e1N d6 Kc6 g7 Qe8 Kg5 f4 d8B Be6 d7 Qf7 Be3 Na6 Ne2 Nb4 Bf2 Nf6 Kh6 Ne4 g8R Bd5 g5 Nd2 g6 Nbd3 g7 Bf3 Bdh4 Kd5 d8B Ke4 Bde7 Rd8 a8R Qd5 Rf8 Rg8 Bhg3 c4 Bec5 Rd7 Ra6 Rd8 Bh3 Nf1 Bg4 Rd6+ Rf6 Rgd8 g8Q Re6 Kg7 Rdd6 Bfd4 Nf2 Rf8 Nh3 Bdf2 Rh6 Qf7 Rc6 Kg8 Rh4 Qd2 Rch6 Qc3 Ng5 Bh5 Rh2 Bg4 R6h4 Qb3 Nh3 Bh5 Bg4 Nec3+ Kf3 Na4+ Kg2 Nac3 Bf3 Na4 Be4 Bd1 Bf3 Rf6 Qc6 Qh5 Qc7 Nd2 b1Q Ra6 Qc1 Nb1 Qd2 Rf5 Nd3 Rf8 Ne3 Be2 Qd1 Rf1 Qd2 Re1 Nf1 Rc1 Ne1 Bd1 Qd5+
r3R2K/2pbP3/n1B2N1N/N1NP1nQ1/2p4q/2Q2q2/1BP3pR/1kBB1rr1 w - - 0 1 illegal: Other
1r6/4K3/p1PR1Rpr/pn1Q1N2/2Bq1NP1/n1Bb4/3R1PNk/rQ1N1rR1 w - - 0 1 illegal: Other
3b4/2pP1rN1/pnB4k/PpBn2b1/3K3b/3R2N1/1NPRBBQ1/br1NQ3 w - - 1 2 illegal: Other
2Q1nN1Q/2rpQ2K/p1r2N2/B3Rp2/P1PBnP2/B4k1B/R2Q1b2/2bb2b1 w - - 1 2 legal: proof: c4 b5 g4 c5 e4 h5 gxh5 f5 b4 a6 bxc5 Rh6 d4 Rd6 e5 Qc7 d5 Rh6 d6 Rh8 dxc7 Ra7 Bb2 Rb7 Ba3 Rb6 Bc1 Rf6 exf6 Rh6 Qe2 Rh7 Qd1 Rh8 Kd2 Kf7 Ke3 Ke6 Kf4 g6 Kg5 Ke5 a4 Ke4 f4 e5 h4 b4 h6 b3 h7 b2 h5 Bb7 c8Q Bc6 h6 Ba8 c6 Bb4 f7 Nf6 f8B Ne8 c7 Ba3 Nh3 Nc6 Bb4 Nd8 Ra2 Nb7 Ba5 Nc5 Qd2 Kf3 Qd8 e4 c8Q e3 Qe7 e2 Nc3 e1B Nd5 b1R Nf6 Bf2 Rh2 Rg8 h8B Rb7 h7 Ne4+ Kh6 g5 Rh1 g4 Ng5+ Kg3 Bg7 Rc7 Ne6 Kf3 h8Q g3 Kh7 g2 Nf8 g1B Bh3 Bb7 Bb2 Bc6 Bd4 Bc1 Bb2 Bd5 Ba3 Bf7 Rh2 Bh5 Rh1 Bh2 Re1 Bhg1 Ng4 Rc6 Bd4 Rgg6 Nf6 Rc7 Nd5 Rgc6 Nf6 Bg4 Re2 Kg3 Re1 Bd1 Re2 Kf3 Re1 Ng3 Re5 Ne4
2R2Q1b/NR1N1p1p/1Q2bP2/B4bB1/1pb2P1K/2RB3r/BP5k/R2r2bq w - - 0 1 illegal: Other
1N1B3R/rPP3pQ/5NR1/7q/N1Q1p1bk/p1Q1N3/1p2BrP1/Qn1bKn2 w - - 0 1 illegal: No proof kernel
bk3B2/5pQ1/1nrK1Np1/3RP1PB/p1p5/rB1bqPQ1/2NQBR2/1bQ5 w - - 0 2 illegal: manual, white can get 2 promoted bishops only on e8 and g8 and the latter can't get out
2Q2b1N/KNP4Q/Bpp2P2/Rq1pB1pb/1PNr1b2/R2r1k2/N2n4/1Q2Q3 w - - 0 1 illegal: No proof kernel
2B3QB/NBp1P1PR/1Q2n3/R1Q2pk1/N3nq1r/1Q5p/1K2q1pP/4br1B w - - 0 1 illegal: No proof kernel
8/6QP/2B2p2/k1rR1p1r/np2bQPn/1BBbNPNQ/3R2Kp/3Q1Bb1 w - - 0 1 illegal: Other
b1qk3B/1p5n/2p3pR/5NPp/1NQrn1Q1/1PRR1r1P/R2pQQ2/1B1K4 w - - 1 3 illegal: Other
2Qb1r2/3R1K1P/BNB1r3/7P/1p1N1Bp1/Rp2BQP1/p1p4n/2NnkN1q w - - 0 1 illegal: Other
1kB5/2N2PK1/1N2p2n/BB1qpp1R/2n1bRrR/BP1Q4/4pP1p/2rR1Q2 w - - 0 1 illegal: Other
3B3b/pQ2b1N1/1q1nR1QP/R3N2N/P1Rr2pK/k1rR1B1b/6P1/n2Nn2r w - - 0 1 illegal: No proof kernel
bB5k/1q1Kp1NN/b2B4/2pQP3/1NPr1q2/1BqBRN2/1n1bPr2/1nQR4 w - - 0 1 illegal: No proof kernel
1r3Bq1/1np5/3QPk2/1B2pN2/2PQKr2/1r1nP2R/RR2q1bR/1Bbq1BN1 w - - 0 1 illegal: No proof kernel
4b1B1/n2p1RNQ/1bk5/b3BRnr/5K1p/1N1P2NQ/qP1qR2P/R1rN1r2 w - - 0 1 illegal: No possible last move
1rnB1q1N/2pB2K1/Q2N2R1/3n1QR1/3QprQ1/P1P1r1q1/3RPb1q/k4bR1 w - - 0 1 illegal: No proof kernel
4Q1QB/q1r4q/1p2b3/1NPR3N/k1NBprbn/1nbN4/KP2PnB1/R5B1 w - - 0 1 illegal: No proof kernel
1k2NR2/1p1R1b2/3R1bq1/1q1B1nPR/N1p1KrNQ/3n1Q2/1PP1N1qn/2Br4 w - - 0 1 illegal: No possible last move
4K3/B3p3/Q1p1Pq1R/1nP4P/Nrb1nn1k/rn1BB1b1/2R1B3/Q2rRRN1 w - - 0 1 illegal: No proof kernel
4nNrr/N1rqR1pp/1N4P1/RN4Q1/4P3/1R1rnQ2/n1BB1bRP/1b2K2k w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 e4 Ke7 b4 c5 g4 f5 d4 a5 e6 Kf6 d6 a4 b6 a3 e7 c4 e8R c3 g5+ Kg6 b7 a2 d5 f4 d7 f3 d6 Kh5 b5 Kg4 b6 c2 g6 Be7 Na3 Bf6 Nc4 Bg5 Bd3 Nf6 Bd2 c1R Bc2 Nc6 b8R Ba6 b7 Nb4 Nb6 Bd3 Re7 Ne8 Ne2 Kh3 Nc3 Kg2 Nb5 Be3 Rf1 Rg8 Rf2+ Kh1 Rg2 Qc7 d8Q Bg1 d7 Qc6 Rb1 a1R Rb3 R1a3 Rc8 Rh8 b8N Na2 Rc7 Qd5 Ra7 Qf5 Ra5 Qf7 Bb1 Rc7 Nc6 Bc2 Nca7 f2+ Ke2 f1N Ke1 Ne3 Qf3 Bd3 Bc2 Qe6 Qc8 Rg8 d8N Qd7 Ne6 Rb8 Nf8 Rh8 Bd1 Bb1 Qd8 Rbc8 Bc2 Ra8 Rb4 Rd3 Rb3 Qf5 Qd6 Qd7 Ne6 Nf6 Qc5 Rag8 Nf8 Ne8 Qg5 Bf2+
R6N/1bBbp2q/3n2Q1/BB6/R1rrR1pr/B1RP2KN/1bn1P1P1/Qb1k4 w - - 0 1 illegal: Other
3N1Rn1/1pq1k1q1/4P1B1/1PRb1p2/nbR1N3/2Q1RP1r/1B2r3/B1nB1QnK w - - 0 1 illegal: No proof kernel
Q1R5/b1qbQp2/p2N1r2/r2B1R2/qBnb3N/2QBP3/P2Q1Pb1/BKn4k w - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Be7 gxh5 Bf8 Kd2 Ke7 h4 Ke6 c4 Kf5 Kc2 Ke4 c6 d5 c7 b5 c5 g5 e6 d4 e7 d3+ Kb2 g4 e8B g3 c6 d2 e3 g2 h6 b4 h7 b3 h5 Nd7 h6 Nc5 Nf3 g1B Nh4 Bh2 Na3 Nf6 Kb1 b2 Nc4 Bd7 c8Q Qc7 Qd8 Nd3 Qe7+ Be5 Be2 Rg8 h8B Ng4 h7 Rg6 Rh3 Bg7 Rf3 Rf6 Rf5 Bf8 Qe1 d1Q Qd2 Qa4 Bf1 a6 Bg7 Rb8 h8Q Rb5 Be2 Ra5 Bf1 Qc8 c7 Qd8 c8Q Qc7 Qed8 Bfd6 Qe7 Bc5 Qb8 Ba7 Qa8+ Bc6 Bd7 Bb7 Be6 Bed4 Qhc8 Nge5 Bh8 Qd6 Qc5 Qc7 Qcb4 Bc6 Qdc3 Bb7 Bd2 Nc1 Be1 Bc6 Qd2 Bd5 Qbc3 Bb7 Nb6 Nc4 Nc8 Rh6 Be5 Rf6 Be2 Nb6 Bb3 Nc4 Nd6+ Kd5 Rf3 Nd3 Qd1 Qb8 Qcc1 Bdb6 Bc2 Bc6 Bd4 Nce5 Rf5 Qb7 Bd2 Bd7 Bb4 Bc5 Bdc3 Bd4 Qdd2 Qbc6 Ne8 Ke4 Bb3 Qb7 Kc2 Qbc6 Qcd1 Qb7 Q2e1 Qbc6 Rc1 Qb7 Kb1 Qbc6 Rc2 Nc1 Bd2 Qb7 Rc8 Qbc6 Bdc3 Qb7 Kc2 b1B+ Kb2 Bc2 Be6 Bb3 Kb1 Bd5 Ba1 Nc4 Qc3 Qc7 Qdd2 B5c6 Ng6 Qf4 Bf1 Kf3 Bd3 Kg2 Nh4+ Kh1 Bf1 Bb7 Bd3 Bf3 Bd5 Qc7 Nd6 Bg2
7R/N1qQBRN1/1n2bnQR/1B1pPB2/rR1P3p/5pK1/B2k1r1P/3br1b1 w - - 0 1 illegal: No possible last move, all moves rejected
8/3nBNR1/2kNRb2/p2r4/1B1ppNq1/3QPnnb/1PrPN1BK/1B2bQ2 w - - 0 1 illegal: Other
1N4k1/4K1pr/2b1P3/N2N2Pp/1p1B1Rn1/n1rB3P/bR1bNQq1/QR2rR2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Bd6 f4 Ba3 fxe5 Bf8 Kf2 f5 Ke3 Kf7 Kf4 b5 a4 c5 e4 h5 d4 c4 g4 c3 d6 b4 g5 c2 d7 Ne7 e6+ Kg8 Ke5 f4 Kd6 f3 a6 f2 d5 Bb7 e5 Nec6+ e7 Nd4 h3 Ra7 e6 Qa5 d8N Nd7 Qe1 Nc6 Be3 c1R Ne2 Rc4 Bd4 Bc8 Nb7 Rc1 Nbc3 Nf6 Rb1 Qb5 a5 Ra8 a7 Nb8 a6 Nh7 Na5 Nc6 Rb2 Rb8 a8R Bb7 a7 Rc8 Kd7 Rd1 d6 Qd5 e8R Qg2 Nd5 Ra1 Rd8 Ne5+ Ke8 Be7 d7 Rc3 Rac8 Rac1 a8Q Bd6 Rc4 Bc6 Qd2 Re1 Rc8 Bb7 d8N Bc7 Qe3 Nf6+ Ke7 Rh7 Rb8 Nfg4 Ndc6+ Bc8 Rb5 Bb6 Qa7 Bd7 Nb8 Bc6 Qc1 Bc7 Qa1 Bb6 Be3 Bc7 Rf4 Nc4 Bd4 Na3 Rc5 Rd3 Rc1 Rc3 Rcb1 Bb6 Bf6 Be3 Bd4 Bd2 Ng1 Ba4 Bd3 f1B Ne2 Bb3 Rg1 Ba2 Qb6 Qe4 Qc5 Bg2 Rgf1 Bf3 Bf6 Bg2 Qf2 Qf3 Bd4 Qg3 Nb6 Bc6 Nd5 Qg2
6bK/1k2Bp2/1B1B1rQ1/bpp3n1/B1N1rP1n/2qN1R1Q/2P3P1/2Q1rQbR w - - 0 1 legal: proof: e4 d5 exd5 a5 h4 g5 hxg5 Bg7 b4 Bh6 bxa5 Bf8 Ke2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 h5 a4 e6 d4 b6 a6 h4 g6 h3 g7 h2 a5 Qe8 d6+ Kc6 a7 Rh4 a6 Rh7 d5+ Kd7 Na3 Nf6 g8Q Rh6 Bb5+ Kd8 d7 Kc7 Nh3 Rh4 Bf4 Bg7 Ba4 b5 d6+ Kc6 d8B Ne4+ Bf6 Ng5 d7 Kb6 Rf1 h1R d8B+ Kc6 Qh7 Qh8 Nc4 Rg1 f3 Bd7 Rf2 Re1+ Qe2 Bc8 Qg6 Bb7 Bh2 Rh6 Bb6 Nd7+ Kf4 e5+ Kf5 e4 Nf4 e3 Nd3 Rh4 Qf1 e2 Bd6 Nf8 Bfe7 Re4 f4 Bd4 Rf3 Bg1 Rc1 Rd8 a8Q Qc3 a7 Rd7 Qc8+ Rc7 Qh5 Ng6 Qg8 Ba8 Qh3 Kb7 Qg7 Rc6 Qgh6 Re5+ Kf6 Nh4 Kg7 Re4+ Kg8 Qb4 Qg6 Qc3 Bb8 Rf6 Bbd6 Rd1 Rb1 e1B Kh8 Bd2 Rc1 Rde1 Ra1 Qb2 Rb1 Ba5 Rc1 Qc3 Rd1 Kc6 Ra1 Bb7 Rd1 Bc8 Rc1 Bf5 a8Q+ Kd7 Qd5 Kc8 Qd4 Kb7 Qe3 Qb2 Ra1 Qb3 Qc1 Qc3 Qh5 Bh7 Qg6 Bg8 Qd1 Bh2 Qf2 R1e3 Qdd2 Qe5 Rh1 Bg1 Qf1 Qc3 Qdc1 Re1
3rBN2/p1prn3/1P5n/B1k3NK/RN1p3N/P1b4n/1Q1P1Bbq/Q2RB2r w - - 0 1 legal: proof: e4 f5 exf5 h5 c4 b5 cxb5 Ba6 g4 Bb7 gxh5 Bc8 Ke2 e5 Kf3 Ke7 Kg4 Kd6 h4 g5 b4 e4 f4 e3 h6 e2 h5 e1N f6 Nd3 b6 Qe7 f5 Ne1 b7 Nc2 f7 Qe1 f6 Qe7 b5 Qe3 h7 Nb4 h6 N4c6 b6 Qe8 Ba3+ Kd5 Bb4 d6+ Kh5 g4 Ba5 g3 Nf3 g2 Bb5 g1R Nh4 Qe6 Nc3+ Kd4 Ne4 d5 Ng5 Ba3 f8N Qe8+ f7 Na6 b8N Nce7 Nc6+ Kc5 Nb4 Bb2 a3 Qd8 Be8 Bc3 Qc2 Rg2 Qb2 Bh3 Rad1 Qd6 Rhe1 Rd8 Re4 Qh2 Rg4 Nf5 Rd4 Nge7 Qa1 Rg8 h8B Rd7 h7 Nh6 Be5 Rg1 h8Q Rh1 Bg3 Bg2 Qg7 Rh8 Be1 Rg8 Qg6 Rh8 Qgb1 Rg8 Qbb2 Rh8 Na2 Nb4 Rg4 Nd3 Ra4 Nf2 Nb4 Qe5 Nh7 Qh2 f8B Nh3 Bg7 Neg8 Nf8 Ne7 Be5 d4 B5g3 Rg8 Bef2 Rg6 Be1 Rgd6 Bgf2 Rd5 Na2 Rd8 Nb4 R5d7
5R1R/1N1p3p/b4RQ1/2R1br1q/2BKn1pQ/k1PQ3P/3P3r/nbNn2BQ w - - 0 1 illegal: No proof kernel
1B1R1qBB/1pR1nPpb/1Nrn4/4qp2/K1Qrk1P1/1PQ1q1bB/2NQ1Q2/8 w - - 0 1 illegal: No proof kernel
rk5q/2rnRB1p/r2n2b1/1PQ1p3/p2b1B2/P3P1NB/NN1BN3/3rK1QR w - - 0 1 illegal: No possible last move
1KbB3N/Q1p1b1N1/P2QR1B1/Q2N1p2/qnP1QPb1/3nR3/pp1k1r2/r1N5 w - - 0 1 illegal: No proof kernel
1n3R2/p2b1nPk/qbNQ2Rp/QQp1RRp1/K7/1BPn2BP/Q4Nr1/1r6 w - - 0 1 illegal: No proof kernel
2r1b3/rBnB3R/1pppK3/1kB1QR2/1bb2BPR/2PPR1Q1/p4Nq1/n6N w - - 0 1 illegal: No proof kernel
BQ1K3k/n2ppb2/BR1Q1ppq/r3B2n/3bQB2/3P1PnN/2QNP2R/r7 w - - 1 3 legal: proof: b4 c5 bxc5 b5 g4 h5 gxh5 Nc6 a4 Nb8 axb5 Qb6 Bg2 Qc7 Bf1 Qd8 h4 a5 c4 g6 h6 a4 b6 a3 c6 a2 b7 Ra5 c5 Ra8 c7 Bg7 h7 Kf8 c6 Nh6 h5 Nf5 h6 Bc3 Rh2 Ra5 Bg2 Be5 Nh3 Rg8 h8B Bc3 h7 Bb2 Be5 f6 h8Q Ra8 Qh4 Kg7 Qe4 Na6 b8Q Bb7 c8Q Rf8 c7 Bd5 d3 Bd4 Kd2 Bb3 Qc2 Nb4 Qa6 Nd5 c8B Kh8 Qad6 Ra5 Ba6 Nf4 Bh1 Nh5 Bf3 Ba7 Kc3 Bf7 Kb4 Nfg3 Bcf4 Bd4 Nd2 Re8 Rf1 a1N Rb1 Nb3 Rb2 Ra1 Kb5 Na5 Rb1 Nc6 Rb3 Bb2 Rb4 Qc8 Kb6 Na7 Bg2 Rg8 Bh1 Qf8 Kc7 Qh6 Rb6 Be8 Kd8 Bd4 Qf5 Rf8 Ba8 Rg8 f3 Rf8 Qb4 Ra5 Q8d6 Ra1 Qe4 Bf7+ Kc7 Rb8 Qb5 Rb7+ Kd8 Rc7 Qbb4 Rc5 Qb8 Rd5 Q4d6 Rda5
4B1bB/3Q1Bbk/6nN/1r1pB2p/p2N1r2/PQ3p1q/1P1PQ2R/K1Q1nR1q w - - 0 1 illegal: Other
2rQ1R2/N1p1n1n1/2R2NN1/q6p/BBq1p3/1PPRPp1b/1QN3rR/K1b2k2 w - - 0 1 illegal: No proof kernel
5r2/1Q1Q1RNB/1bbPP1R1/1kNN4/2bP3B/qnPqB1K1/2n5/Q5r1 w - - 0 1 legal: proof: f4 b5 b4 c5 bxc5 e5 fxe5 d6 cxd6 h5 g4 a5 gxh5 b4 Nf3 b3 axb3 a4 bxa4 Qd7 Ng1 Qd8 Kf2 Kd7 h4 Kc6 e4 g5 h6 f5 h5 f4 e6 g4 e7 f3 e8N Qc7 e5 Qa5 h7 Qb5 h6 Na6 a5 Qb6+ Kg3 f2 Ne2 Nb4 a6 Be7 a7 Qb5 Ng7 Qa5 Nec3 Ba6 Nd5 Re8 a8Q+ Bb7 Bd3 f1B Nbc3 Qa4 Rg1 Rf8 Ne4 Bd8 Nc5 Ne7 c3 Qa3 e6 Rhg8 h8Q Ba5 Bh7 Bb6 d4 Kb5 Be3 Bc6 Qb7 Bc4 Rf1 Nc2 Rf7 Ng6 Ra2 Ne5 Qa1 Nf3 Qd7 Nd2 Rb2+ Nb3 Rb1 Ra8 Rg1 Rgb8 Qhe8 Ra4 Qee7 Rf8 Qb7 Raa8 Qed7 Rab8 Kh4 g3 Kh3 g2 Kg3 Rfc8 Bg8 Ra8 h7 Rf8 h8B Rad8 Bh7 Rg8 Rh1 Rdf8 Rh6 g1Q+ Kh3 Qf1+ Kg3 Ra8 Rg6 Qb1 Ne8 Qd1 Bf6 Qd3 Ng7 Rgf8 Bh4 Rab8 Re7 Rf1 Rf7 Rf8 Qe7 Rh1 Qed7 Rg1+
1qk1qr2/3R3R/4K2B/R1b2n1B/4PPqP/4Q1BP/2Nb1rQ1/1N3r1N w - - 0 1 legal: proof: b4 a5 bxa5 h5 a4 b5 axb5 d5 c4 h4 cxd5 h3 gxh3 Nh6 f3 Ng8 h4 Rh6 Ra4 Rh5 Ra1 Rh8 Kf2 e5 Ra2 e4 Ra3 e3+ Ke1 Bf5 Ra1 Be4 fxe4 f5 Na3 f4 Rb1 f3 Ra1 Nc6 Nb1 Ne5 Qb3 f2+ Kd1 Nf3 exf3 Rb8 Ke2 Rc8 Qd1 Ra8 Kd3 Kd7 Kc4 c5 d4 g5 b6 e2 a6 e1Q h3 g4 a7 g3 d6 g2 Kd5 c4 b7 c3 b8B c2 Bh6 c1B Qb3 Qb6 Ne2 g1R Qe3 Rg3 Rg1 Qbb4 Ra5 Rg2 Ng3 Rh7 Nh1 Ba3 Be2 Kd8 d7 f1Q Bg3 Rf7 f4 Qbd2 Ke6 Bfb4 d5 Ne7 Bh5 Rf2 Rg2 Rc8 a8Q Qg1 Qb8 Bc5 Qb2 Bab4 Qg7 Kc7 d8R Rf8 d6+ Kb8 d7 Nf5 Qg8 Qef1 Qg4 Qb5 Qgf3 Qgd1 Rg1 Q2e2 Qg2 Qda4 Rc1 Bd2 Rc4 Ba7 Rc7 Bc5 Rca7 Qg4 Rc7 Rf7 Rh8 Rg8 d8N Rff8 Rd7 Kc8 Nc6 Qb8 Nd4 Rg7 Nc2 Qab5 Rd6 Rb7 Rh7 Qe8+ Re7 Rb4 Rd7 Rc4 Ne1 Rc1 Nc2 Qd8 Rg7 Rcf1 Rh7 Qe8+
6Nn/B1k5/2N2Q1B/2bQK1n1/r1pP4/1q1qPNP1/1nrP1R2/2R2BQ1 w - - 0 1 legal: proof: b4 a5 bxa5 b5 axb6 g5 h4 d5 hxg5 e5 f4 d4 fxe5 d3 cxd3 Ba3 b7 Kf8 d4 Nc6 b8B Bb2 a4 Ba3 a5 Ke8 a6 Bb7 axb7 Bf8 Kf2 Kd7 Kf3 f5 Kf4 h5 g6 h4 g7 h3 g3 h2 e3 Bc5 Nf3 Nge7 g8N Nb4 Ba7 Qb8 Nc3 c6 Rg1 h1N Nd5 Nf2 Ba3 Ne4 Rc1 Ng5 Rg2 Rh7 Rf2 Rg7 Nc3 Kc7 e6 Rg6 Ke5 f4 Qe1 Rg7 Na2 Ng6+ Kf6 Rh7 e7 Nd3 e8Q Nb2 Qf8 Nh8 Ke5 Rd7 Qf6 Rd8 Ng1 f3 Nb4 Rc8 Qd1 Be7 Qb3 c5 Nc6 Bf8 Qd5 Be7 Rh2 f2 Nf3 Bf8 Bc4 f1Q Rf2 Qd3 Bb4 Qh7 Bf1 Qd3 Ba3 c4 Bb4 Bc5 Ba3 Bb6 Be7 Bc5 Bf8 Rd8 Bh6 Rd6 Nb4 Rb6 Nc6 Rb3 Qg6 Rc3 Qf6 Rc2 Qe4 Qd8 b8Q+ Kd7 Qb5 Kc7 Qd5 Qb8 Qb3 Qh7 Qd3 Qb3 Q3e4 Qg6 Qh4 Qgd3 Qh1 Rb8 Qh2 Rb4 Qg1 Ra4
1qNBK3/4R2n/kPb1P1B1/1r2nQ1b/r2B4/3PN1qn/4QP2/1bRN3R w - - 0 1 legal: proof: e4 d5 h4 b5 a4 g5 hxg5 e5 axb5 f5 Ke2 Bg7 exf5 e4 d3 Be5 d4 Qd6 dxe5 d4 Kd2 d3 Ke1 d2+ Ke2 Qd3+ cxd3 Ba6 Ra3 Bb7 Ra1 Bc8 Ke3 Kd7 Kf4 a5 b4 h5 g4 c5 b6 Kc6 b7 Kb5 f6 a4 g6 h4 Kg5 a3 e6 a2 f7 c4 f8Q e3 g7 c3 Kg6 h3 Kf7 c2 g5 e2 g6 e1Q Bb2 c1N Ne2 h2 Nd4+ Kb6 b5 Ra4 Nc2 Rh5 Bg2 Qe3 Qe2 d1B Be4 Nf6 g8R Bd7 g7 Nh7 Bg6 Nc6 b8B Qg3 Ne3 Bc2 Nc3 Bb1 Ncd1 Ne5+ Ke7 Bc6 Qf5 Kb7 b6 Ka6 Re8 Bf3 g8N Rg5 Qe1 Bh5 Bc7 Ne2 Bd8 Nf4 Bd4 Nh3 Qf1 Ng4 Qe2 Ne5 Re1 h1B Rf1 Bc2 Rc1 a1Q Rg1 Bc6 Rh1 Ng4 Kf7 Bb1 Ne7 Qc3 Nc8 Ne5+ Kg8 Qc5 Re7 Qd6 Kg7 Nc4 Kf7 Qb8 Qe4 Rb5 Qf5 Ba8 Ke8 Ne5 Qf1 Bb7 Qe2 Bc6+
1R4b1/B1N2NkP/1n1Q4/BKPPPq1r/R1B1n3/Q3n1q1/1b1N1Q1n/2n5 w - - 0 1 legal: proof: b4 b5 f4 d5 g4 c5 a4 a5 axb5 e5 fxe5 h5 gxh5 Ra6 c4 Rc6 cxd5 c4 Bb2 Kd7 Bc1 Rc5 bxc5 Ke8 e4 g5 Ke2 f5 d4 Kf7 h4 f4 b6 a4 b7 c3 Kd3 f3 Kc4 g4 d6 f2 e6+ Kf6 e5+ Kg7 d7 c2 h6+ Kh7 h5 g3 e7 a3 e8N a2 d5 g2 Kb5 Na6 b8B Qe7 d8Q Be6 Nh3 g1Q Nc7 Qg3 Ba7 Nb8 Bd2 c1N Ba5 Qf7 Qf3 Nd7 Nd2 Ngf6 Qa3 Ne4 Bc4 Nb6 Qd6 f1N Ng5+ Kg8 h7+ Kg7 Rh3 Qf5 Nf7 Nh2 Rb1 a1N Rh4 Nc2 h6+ Kg6 Rb4 Ne3 Rf4 Be7 Rg4+ Bg5 Rb1 Rg8 h8Q Rg7 Qhf8 Rh7 Rh4 Rh8 Rb4 Kh7 Nd8 Bg8 Nf7 Nc2 Ra4 Be3 Rg4 Bd4 Rg6 Bc3 Re6 Bb2 Re8 Ne3 Rb8 Qgh3 Qde7 Kg6 Qh4 Rh7 Qf2 Qg3 Qd8 Rg7 Qf6+ Kh7 Qd6 Rg5 Nd8 Kh8 h7 Rh5 Nf7+ Kg7
1R2b3/3P2NB/b2BB3/1bQrR3/2r1P1R1/3bP1N1/2Pq1kq1/n1QKb2Q w - - 0 1 legal: proof: h4 g5 a4 e5 f3 b5 axb5 e4 fxe4 Qf6 Nc3 Qe7 Nb1 Qd8 hxg5 d5 d4 c5 dxc5 Bd6 Kf2 Be7 Ke1 Bf8 Be3 Nc6 Bc1 Nce7 Rh5 Nf5 Rh1 Nd6 cxd6 Bh6 Bf4 Bg7 Bc1 Bf8 Ra5 Kd7 b4 Ke6 b6 Ke5 b7 h5 b8Q f5 b5 h4 b6 f4 b7 f3 g6 h3 g7 f2+ Kd2 Kf4 Rb5 Kg3 Qc7 a5 b8Q h2 Nf3 d4 Rg1 d3 Ng5 Rh5 Ne6 Ne7 g8B Nf5 Nf4 Nd4 Ne6 Rf5 Ba3 Nb3+ Kc3 d2 e3 h1B Bc4 f1B Bh7 a4 d7+ Kf2 g4 Bb4+ Kb2 Bf3 g5 Qg8 g6 Bh5 g7 Bd3 Nc3 Ba5 Bd6 a3+ Kb1 a2+ Kb2 Bb4 Ne2 Ra4 Rd5 Bf7 Qc5 Ba6 Rg3 Ba5 Qh1 Re5 Rg1 Bh5 Rb1 Be8 Qbb4 Rf5 Qa3 Rb4 Kc3 a1Q+ Qb2 Qa4 Qbc1 Na1 Ba2 d1B Kd2 Bdc4 Ng3 Re5 Nf1 Bde2 Bb3 Bed3 Kd1 Qa3 Ba2 Ra4 Rb8 Be1 Bb3 Bcb5 Bc4 Bg6 Ba2 Qc3 Bc4 Qd8 g8R Qg5 Ba2 Qg2 Ng3 Bh5+ Rg4 Be8 Ng7 Rh5 Rdg5 Rb4 Be6 Rc4 Rg6 Rd5 R6g5 Qb4 Re5 Qd2+
3Q4/P2P1K2/2R3Q1/nQ2P2q/N1PB1B2/q2R2b1/b1k2n1N/bbn1r1NB w - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 a5 g4 a4 gxh5 a3 bxa3 Qf6 a4 Qe7 a5 Qd8 Nf3 b5 Ng1 d5 Kf2 c5 Ke1 Ra6 d3 Rc6 cxd5 c4 Bf4 c3 Bc1 Rc4 dxc4 Bd6 Qa4 Be7 Qd1 Bf8 Kf2 Ke7 Ke3 f5 Kf4 b4 Kg5 g6 h4 c2 e4 b3 a4 b2 e6 Kd6+ e7 Ke5 d6 f4 d7 f3 a6 f2 h6 Bg7 h5 Qf8 e8Q+ Ne7 a5 Qf3 h7 Qa3 a7 Na6 a8N Nc5 a6 Nd3 h6 Kd4 a7 Nc6 Bf4 c1N Bg2 f1Q Qb3 Qe2 Rh3 Na5 Nb6 Bb7 Nd2 b1B Nf1 Nf2 Bh1 Ba2 Nh2 Qd1 Qd8 Re8 h8B Qf3 Qa4 Kd3 Qb5 Kc2 h7 Re6 Rb1 Ba1 Na4 Ba8 Kh6 g5+ Bf6 g4 Kg7 g3 h8Q g2 Qhe8 Qh5 Qg6 Re5 Rd3 Bd5 Rbb3 Bg8 Rd6 Bh7 Rbd3 Re6 Rc6 Re5 Nh3 g1B Kf7 Re8 Bd4 Re5 Nf1 Bh2 Ng1 Bg3 Nh2 Rg5 e5 Rg4 Bh6 Re4 Bd2 Re1 Bf4 Qg4 Qgf6 Be4 Qg6 Qh5 Rb3 Kd1 Rc3 Beb1 Rd3+ Kc2
8/n1PNQ1N1/1n1Q3B/2QPBbR1/2B3bk/1r3nr1/4PbPr/KN3R1r w - - 0 1 illegal: Other
2bnN2N/r1qBP3/3Q1B2/5nR1/Pn4KP/P1q3Q1/3NRB1p/kbr4R w - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 a5 cxd5 a4 b3 Ra7 bxa4 Ra8 h4 h5 g3 g5 hxg5 Bc5 Bg2 Be7 Bf1 Bf8 g6 h4 Qb3 h3 Qc2 Be7 Qd1 Bh4 gxh4 Qg5 Nf3 Qe7 Ng1 Qd8 Kf2 Ke7 Kg3 b5 e4 c5 d4 f5 e6 Kf6 g7 h2 e7 b4 e8N+ Kg6 d6 b3 e5 c4 a3 b2 d5 c3 e6 c2 d7 f4+ Kg4 f3 d6 f2 Ne2 Ne7 Qd3+ Nf5 Ra2 Ra7 Nd2 b1B Qg3 Nc6 Bh3 Qc7 d8B f1Q d7 Qe1 Bf6 Nd8 e7 Rf8 Bcb2 c1N Bbd4 Nd3 Bf2 Nb4 g8R+ Kf7 Rg7+ Ke6 Rg5 Kd5 Rc2 Qc1 Rb2 Q1c3 Nf4+ Kc6 Ng6 Kd5 Nh8 Rg8 Nf3 Kc4 Re2 Kb3 Nd2+ Ka2 Rf1 Ndc6 d8Q Ka1 Qdd6 Nd8 Rh1 Rg7 Bg2 Rg8 Bc6 Rg6 Bg7 Re6 Bd7 Re3 Bf6 Rf3 Bb6 Rf1 Bf2 Rc1
3n3B/1Q2P2k/2P1r1NN/1Pr5/5NqP/bpbKnn1R/R2Q1B2/qR1B4 w - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 c5 g4 h5 gxh5 e5 f4 b4 fxe5 Qe7 d4 Ba6 dxc5 Bb5 axb5 Qd8 Kd2 g5 h4 f5 e4 Kf7 c4 Kg7 a6 d5 e6 f4 a7 b3 h6+ Kh7 c6 d4 e7 g4 e8N g3 c5 d3 c7 f3 c8Q g2 c6 f2 e5 Na6 e6 Qf6 e7 Nb4 Qb7 Rd8 a8R Nc2 Nc3 Ne3 Nge2 g1B Nd6 Bg7 Nf5 Rd5 Rb1 Rc5 Nd5 Qa1 Rh3 Bh2 Ra6 Bd6 Nef4 Bd4 Be2 f1N+ Ke1 Bc3+ Qd2 Nh2 Ng6 Nf3+ Kf2 Rc4 Bd1 Ba3 Ndf4 Rc5 Ra7 Bab4 Ra2 Ba3 Qe1 d2 Ke2 Nd4+ Kd3 Nf3 Bc2 d1Q+ Qd2 Qg1 Bd1 Qg4 Bb2 Nf6 Bc1 Ne4 Bb2 Neg5 Bc1 Bg7 Bb2 Nf7 Bd4 Nf1 Bf2 Nd8 Nd6 Bc3 Nf7 Kg8 h7+ Kg7 Rab2 Ne3 Ra2 Rg8 h8B+ Kh7 Nh6 Rf8 Qb8 Rf6 Qb7 Re6
4QqnN/1b1Nr3/1K2RP2/2nB3N/PpQ2q1P/2P1B1q1/RBn4k/3Q2b1 w - - 0 1 legal: proof: g4 f5 b4 h5 gxh5 c5 d4 a5 bxa5 b5 dxc5 Ba6 e4 Bc8 exf5 Ra7 Na3 Ra6 Nb1 Rb6 axb6 Bb7 Qd4 Ba6 Qd1 Bc8 Kd2 Kf7 Kd3 Kf6 Kd4 g5 a4 d5 f4 g4 h4 g3 b7 g2 c3 e6 h6 b4 h7 Ne7 c6 e5+ Kc5 e4 c7 d4 Bb2 d3 Nh3 g1N Nd2 e3 Kb6 e2 Nf3 e1Q Bg2 d2 Ne5 Na6 b8Q Ng8 Bd5 Qg3 Ra2 Nf3 Re1 Bb7 Re3 Qe7 c8Q Ne1 Qc4 Nc2 Qe8 Nc5 Re2 Bh6 Re1 Qf8 Nd7+ Kg7 Re5 Bg5 f6+ Kh6 f5 Be3 f7 Bg1 Re2 Kh5 Nf4+ Kg4 Nh5+ Kh3 Re6 Kh2 f6 Qf4 Qdf1 d1Q Qe1 Qdg4 Qd1 Qe7 f8B Qgg3 Bh6 Qf8 Bg5 Ne7 Bh6 Rg8 h8N Rg7 Bg5 Ng8 Bh6 Re7 Bg5 Qf1 Be3 Qff4
1Nr1nN2/1qRPBk2/q1n4B/r2PQnK1/1PR1BRp1/3P1N2/Q5qb/8 w - - 0 1 legal: proof: f4 d5 g4 b5 a4 h5 gxh5 e5 fxe5 d4 axb5 d3 exd3 Bg4 c4 Be2 d4 Bf3 d3 Bd5 cxd5 Qg5 Kf2 Qe7 Ke1 Qd8 Kf2 g5 Kg3 f5 h4 a5 b4 c5 h6 c4 b6 a4 e6 c3 e7 c2 b7 a3 d6 a2 h7 f4+ Kg4 f3 d5 f2 d7+ Kf7 e8R Bc5 h5 Qc8 h6 Ra6 Nh3 Rc6 Nd2 Bd6 Rf8+ Ke7 Nf4 Rb6 Qe2+ Be5 Ng6+ Kd6 Rf4 Nc6 b8N Rb5 Nf3 Qb7 Nf8 Ke7 Bg2 f1Q Rh4 Ra5 Bd2 Qf2 Rc1 Nf6+ Kf5 Rg8 h8B a1Q h7 Ne8 Bf6+ Kf7 h8Q Qg3 Bh1 Qg2 Be7 Bd6 Rc4 Bh2 Rhf4 g4 Qb2 Qa4 Qa2 Qab5 Qe5 Q5a6 Rfe4 Rh8 Bh6 Rg8 Rf4 Rh8 Rb1 c1N Rb3 Ne2 Rbc3 Ng3+ Kg5+ Nf5 Rc1 Nd8 Rc7 Nc6 Rcc4 Qh3 Ne1 Qf1 Be4 Qg2 Nf3 Nf6 Ne6 Rc8 Nf8 Ne8
1q5B/B2Q3N/1Kn1P1Pn/3P1nb1/1k2rQ1r/N1R2NpR/P6R/1B3rr1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 a5 g4 f5 b4 e5 fxe5 Ne7 bxa5 Be6 h3 Bf7 Bb2 Ng8 Bc1 Bh5 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Qc8 Bh3 Qd7 Bf1 Qd8 d4 Ke7 Kd2 b5 Ke3 h5 f6+ Kd7 e6+ Kd6 g5 c5 g6 c4 a6 h4 e7 h3 e8Q h2 a7 c3 f7 b4 Na3 c2 Qa4 b3 Nf3 Bg7 f8N b2 Nh7 b1R Bb2 Kc7 d6+ Kb6 d7 Qf6 d8B+ Kb7 Bb6 c1N d5 Qf5 Qd7+ Ka6 Qd2 Bh6+ Kd4 Qf6+ Kc5 Qd8 e4+ Ne2 e5 Nc6 e6 Bg5 Qf4 Nh6 Bd4 Re1 Rc1 Qb8 Rc3 Rf8 Bg2 Rg1 Bh8 Ned4 Bh3 Rf7 Bf5 Rf8 Bb1 Ndf5 Bd8 Rf7 Bdf6 Ka5 Bd4 Qb2 Bf2 Rb8 Bfd4 Rb4 Be3 Re4 a8R+ Na7 Rb8 Nc6 Rbb3 Ka4 Kb6 Rf8 Rc2 Qe5 Rbc3 Qb8+ Ka6 Kb4 Ba7 Rc1 Re1 h1R Rh2 Rf6 Rh3 Rg1 Re2 Rcf1 Reh2 Nfd4 Qe5 Rff4 Qf6 Rh4 Qf4 Qg8 Kb7 Ndf5 Kb6 Qb8+
b4BR1/B3R1Q1/PN2bbN1/QPq5/Pp1n3r/7P/2K1Br2/Q1N1kb1r w - - 0 1 illegal: No possible last move
Q1B4b/6P1/2R1pb1B/1Bn2N2/1Q4P1/rQb1nk1b/rPP4K/RRN1r3 w - - 0 1 illegal: Other
k1r1NKQ1/1N2BPqB/3P1R1P/1q6/2p1N1R1/BR3r2/1bP3nr/Qq3q2 w - - 0 1 legal: proof: g4 b5 e4 f5 gxf5 d5 exd5 b4 h3 b3 axb3 Kd7 b4 Ke8 b5 Bd7 Qg4 Be6 Qd1 Bc8 Ke2 Be6 Ke1 Bf7 Bc4 Bh5 Bf1 Bg4 hxg4 Qc8 Bg2 Qd7 Bf1 Qd8 Bd3 h5 Rh2 h4 Rh1 Nd7 Bc4 Ndf6 Bf1 Nh5 gxh5 Rh6 Qg4 Rh7 Qd1 Rh8 Ke2 Kd7 Kd3 Kc8 Kc4 Kb8 Kc5 g5 b4 a5 f4 e5+ d6 h3 d4 h2 h6 e4 b6 a4 d5 c6 b5 a3 b7 a2 f6 e3 f5 g4 f7 g3 f6 g2 Ne2 g1R Ng3 e2 Ne4 e1Q Nbc3 Rg5 Ba3 Ne7 d7 Qh4 Kd6 c5 Bd3 c4 Rg1 h1Q Rg4 Qc8 d8N Ka7 b8R Bg7 f8B Ng8 f7 Qh5 Nf6 Ne7 Nb7 Ng6 Be7 Qf8 Ne8 Nf4 Bh7 Qf1 Ne4 Bb2 Rb1 a1Q b6+ Ka6 Kd7 Qg7 d6 Ng2 Rc1 Qb1 Qd4 Qg1 Rf1 Ra5 Ke6 Qb5 Rf6 Qgf1 Qe5 Bc1 Qa1 Bb2 Nd8 Rf8 b7 Ka7 Rc8 Kb6 b8Q+ Ka6 Rc5 Rh8 Qc8+ Ka7 Nb7 Rg8 Qd8 Rc8 Rh5 Ka8 Rh3 Qb4 Kd7 Rh5 Rb3 Rh2 Nc7+ Ka7 Rgg3 Qh8 Qf8 Rg5 Qg8 Rf5 Rg4 Qc5 Ne6 Rf3 Ng7 Rc7+ Ke8 Ka8 Kf8 Rc8+ Ne8 Qb5 Bg6 Qh7 Bf5 Qh8 Bh7 Qg7+
3n2Rn/k3K2b/2R2npr/6b1/2bP1P1n/N1B2RP1/2PQ2Nb/QBBQ4 w - - 0 1 legal: proof: e4 b5 a4 f5 exf5 c6 axb5 g6 h4 Qb6 h5 Qd4 h6 Qc3 Bd3 d5 Be2 c5 Bf1 Qg7 hxg7 c4 Rh2 c3 dxc3 Bd7 Rh1 Bc8 Rh4 a5 Rh1 d4 Bd2 d3 Bc1 Ra6 Ne2 Rd6 Ng1 Rd4 cxd4 Bb7 Na3 Ba6 Nb1 Bc8 Kd2 Kd7 Ke3 Kc7 Ke4 Kb7 Ke5 h5 b4 h4 f6 h3 f7 a4 b6 d2 b5 h2 f3 a3 Qe2 d1B Qd3 a2 Nh3 Be2 Na3 Nh6 g8R Be6 Qd1 B2c4 Nf4 Bed5 Rg1 h1N Be2 e6 Kf6 e5 Rf1 Bd6 f8B e4 Qd2 Be5+ Ke7 e3 Rb1 Ka8 b7+ Ka7 Rb3 a1N Rc3 Nf2 Qd1 Ne4 b6+ Ka6 Bd3 Nf6 Be4 Be6 Bd5 e2 Rf2 e1B g3 Nb3 Ng2 Nf7 f4 Rh6 Rf1 Nh8 Rff3 Bf2 Qd2 Bg1 Qd1 Bb5 Rc6 Nd2 Ba2 Bh2 Bb1 Bf1 Rb3 Bfc4 Rf3 Nbd7 b8Q Nc5 Qd6 Nb7 Qb4 Nd8 b7+ Ka7 Qb2 Bc7 Qa1 Bb6 Rf2 Nf3 b8Q+ Ka6 Qe5 Ka7 Qee1 Nh4 Rf3 Ba5 Rg7 Bg8 Qed2 Bh7 Rg8 Ng4 Ke8 Bc7 Bb4 Bd6 Kd7 Be7 Bc3 Bg5 Ke8 Nf6+ Kf8 Nhf7 Ke7 Nh8
b5Rb/3P2BQ/1R3KpN/1n1BNqnr/Q1P2P2/N1Q5/pRPn4/k3b3 w - - 0 1 legal: proof: e4 b5 a4 a5 axb5 h5 g4 d5 gxh5 c5 d3 d4 Qf3 c4 Qxf7+ Kd7 dxc4 Ra6 Ra2 Rd6 Ra1 Rd5 exd5 Rh7 Be3 Rh6 Bc1 Rh8 Kd2 Kd6 Kd3 Kc5 Ke4 Kb4 Ke5 e6 f4 a4 h4 d3 h6 d2 d6 d1N h7 g6 d7 a3 b6 a2 b7 Ka4 b4 Bc5 h5 Nh6 b5 Qf8 b6 Bd6+ Kf6 e5 Bg2 e4 Bb2 e3 Bd5 e2 Nf3 e1B Ne5 Qe8 Na3 Ba5 Rb1 Nc6 b8R Be1 b7 Nf2 Qe7 Nf7 h6 Ng5 Qg7 Rg8 h8Q Na7 h7 Nb5 Rh3 Bdb4 Rb3 Bbc3 Ba1 Bd4 R3b2 Qf8+ Qf7 Qc5 Qhg7 Rd8 h8N Bdc3 Qe7 Rf8+ Nf7 Rh8 Nh6 Rh7 Nf5 Rh5 Nh6 Bd4 Qh8 Bdc3 Qeh7 Nfe4+ Kg7 Nd2 Kf6 Na7 Rb6 Nb5 Bb2 Kb4 Ra8 Bd4 b8Q Bb7 Qa7 Bc6 Rg8 Ba8 Bc1+ Kc3 Qa4 Qb4 Rb2 Qa5 Rb4 Nb3 Be3 Kb2 Q8g7 Bdc3 Bd4 Ka1 Qgh8 Nd2 Rb2 Ne6 Bc5 Ng5 Bf8 Qb4 Bg7 Qc5 Be4 Qd5 Bg2 Qd3 Bd5 Qf5+ Ke7 Bd4 Nef7 Bdf2 Bf8 Qd3 Qc3 Ngf3 Ke6 Bd4 Ke7 Bh8 Ne5 Ng5 Bg7 Qh3 Kf6 Qf5+
3Nk3/2R1Pbq1/PR1p4/2np1K1N/qB1r3Q/1b2rPP1/5NB1/2R1Qr1Q w - - 0 1 illegal: Other
1B3n2/p5N1/KQ1b1q1P/3R2nP/2NnRP2/3Bq1P1/2rp1k2/RQ3NrQ w - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 f5 axb5 h5 Bh6 g5 Qd2 g4 Ra5 h4 Qd1 f4 Ra1 f3 Bc1 h3 gxh3 g3 fxg3 f2+ Kd2 Bb7 Ra3 Rh7 Ra1 Bf3 exf3 Rh8 Kc3 Kf7 Kb4 Kg6 c4 Kh5 b6 d5 Ka5 e5 b4 e4 c6 e3 h4 e2 c5 e1N c7 d4 c8N d3 b5 Nc6+ Ka6 Na5 b7 Nh6 b8Q Nf5 c6 Ba3 b6 Nb3 b7 Qd4 c7 Qb2 Nd6 Rh7 c8R Qc2 Ne8 Bf8 Rd8 Qb2 Nd2 Bb4 Rd5 Re7 Nc4 Nd4 Bf4 d2 Bd3 f1Q h3 Qc3 Ng7+ Kg6 Bc7 Bd6 h5+ Kg5 h6 Ne6 Qd8 Qd4 b8Q Nf8 Qbb1 Rc8 Bb8 Qe3 Qdb6 Re5 Rh2 Nd4 Re2 Rf5 Na5 Rc2 Nc4 Ng2 Qdc1 Nf4 Re1 Nf4e6 h4+ Kf6 h5 Ng5 Ne2 Rf4 Nc3 Rh4 Nd1 Rh1 Re2 Rg1 f4 Qh3 Re1 Qf5 Ne8+ Ke6 Re2 Qf6 Re1 Qee5 Re4 Kf5 Ng7+ Kg4 Nde3+ Kf3 Nf1 Kf2 Nfe3 Rg2 Qh1 Rg1 Nf1 Qee7 Re1 Qe4 Re3 Qf3 Re4 Qe3
B3B3/rR2B1nn/N1PNqNQ1/K2nP1P1/6QQ/6pr/P2R2p1/4nk1q w - - 0 1 illegal: Other
1b2r1B1/1P1R2Nn/pN4Qq/5Rb1/2RP2P1/pk1K1rP1/7p/Bn2QBN1 w - - 0 1 illegal: Other
b1r2K1N/p1q1RQP1/2k1p3/RR2Q1br/3P2P1/1PB4B/1Np2Q1B/3r1r2 w - - 0 1 illegal: No possible last move
3B1b2/1BQ1Q1qb/7r/RRr1r3/5N2/q1PR1n2/P2n1PnP/QKNqN2k w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 h6 Kf6 c3 Ke5 Kc2 Ke4 f6 b5 h7 e5 f7 d5 c6 g5 a6 d4 c7 g4 a7 g3 Kb2 b4 Bh3 g2 Nf3 g1Q Bg2 b3 Be3 d3 Bf1 d2 Qc1 d1Q Bb5 Qg7 Na3 Nd7 Kb1 b2 Nd4 Ngf6 Bg5 Ng4 Ba6 Ne3 Nb3 Kf3 Bb7+ e4 Nc2 Kg2 Re1 Qe8 Bd8 Ne5 Re2 Qc6 Rd2 Bf5 c8Q Nf3 Rd3 Qd6 Qc7 Kh1 Ne1 Rc8 a8R Qa3 Ra7 Ng2 Ra5 Qe2 Qd1 e3 Nc1 Bg6 Qe7 Rc5 Qc7 Rg8 h8N Bh7 Ng6 Rh8 Nf4 Qd2 Qa4 e2 Qc4 Qd1 Qd4 Bd6 f8Q Be7 Qff6 Bf8 Qfe5 Kg1 Qee7 Kh1 Nc2 e1R Qde5 Re3 Ne1 Bf5 Qd5 Rh6 Qc4 Ree5 Qa4 Qd2 Qd1 Bh7 Nb3 Qe3 Kc2 b1N Qc1 Nbd2 Rb1 Ne4 Qb2 Qb4 Qa1 Qa3 Nc1 Ned2 Rb6 Qe2 Rbb5 Ne4+ Kb1 Qf1 Nc2 Qd1 Ne1 Ned2#
b5B1/1q1R4/n1QQB1r1/B3nR2/1P1PRbQN/NbPk4/1P4q1/1K2n1qr w - - 0 1 illegal: No proof kernel
N2Q1n1q/Q2rBqbN/b2RPRq1/1Q1B4/6nP/P1NnP3/4r1B1/k2K2r1 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 d4 Kd7 h4 f5 a3 b5 a6 c5 e6+ Kd6 a7 g5 h6 c4 h7 b4 Nc3 g4 Qd3 g3 Na4 c3 Bh6 b3 Nh3 f4 Ng5 f3 Rd1 c2 Nc3 c1N e3 b2 Rd2 b1Q Kd1 f2 Bg7 g2 Bf6 Nh6 Qf5 Rg8 h8Q g1Q Nh7 Qb7 Qg7 Nd7 Qh5 Rb8 a8B Nd3 Qe8 Qg5 Bg2 Ng4 Rf1 Qg6 Qgf7 Rg7 Qfe7+ Kc7 d6+ Kb6 d5 Kc5 Bg5 Kc4 Q7f7 Nb6 d7 Kb3 d6 Ne1 Rd3 Qdf6 d8N Kb2 d7 Ka1 Rd6 Qc7 Bac6 Ba6 Nb7 Qe5 d8Q Nd7 Na5 Rb2 Bb7 Re2 Bbd5 Qef6 Qfe7 Rf7 Nc4 Qh8 Bf6 Bg7 Nb6 Nf8 Qb5 Qd7 Na8 Qe8 Rg1 f1R Qa7 Rd7 Be7 Qef7 Rh1 Rc2 Rh3 Rg1 Rf3 Re2 Rf6 Nd3+
B2nn1Q1/kP1PRb2/2r3R1/N3N1Pq/4qB2/BR4b1/5PNn/r1qQ1Kb1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 g4 c5 d4 Kc7 d6+ Kb7 f6 h5 d5 e5 b6 a5 b5 e4 d7 h4 d6 e3 f7 h3 g6 e2 g5 a4 g7 c4 Ra2 a3 Qd4 h2 Bf4 c3 Bg2+ Nc6 Qd1 c2 Nd2 c1Q Nh3 Rh6 Nc4 Nf6 g8Q Ne8 Ne5 Qe7 d8N+ Kb8 b7 Ka7 b8R Be6 Nb7 Nd8 Ra1 a2 d7 Rg6 Rf1 h1Q Na5 Rf6 Rb1 a1B Rb3 Bg7 f8B Bf7 Rb6 Rc6 Bd5 Qf3 Rh1 Qh5 Bf3 Qe6 Ba3 Qf5 Bd5 Qe4 Rg1 Bf8 Rgg3 Bd6 Rge3 Rcc8 Rc6 Bb8 Rg6 Rc6 Bg3 Bd4 Nf4 Bc5 Bh2 Bcd6 Ng2 Bbc7 Nd3 Bg3 Ne5 Bh4 Bf4 Bg3 Re6 Bh2 Re7 Bg1 Rec3 Ra6 Rc6 Rc8 Rg6 Bb8 Ba8 Rcc6 Nac4 Ra4 Na5 Bc7 Bb4 Ra1 b6+ Ka6 b7 Ka7 Ba3 Bd6 Ng4 Be5 Bd2 Bg3 Ne5 Qcc2 Bf4 Qb1 Kd2 e1N Ne3 Nf3+ Ke2 Qb2+ Kf1 Qc1 Ng2 Nh2+
nK1RN2b/P6P/q1P2Q2/4qnQN/n1b3BR/4r3/rk1PNBr1/5bBR w - - 0 1 illegal: No proof kernel
N2B1NRn/1kb2Q2/2n1Br2/1BQr1Q2/1Pn3P1/2KnqRPP/b1N5/r4n2 w - - 0 1 illegal: No proof kernel
rRr4R/2Q1n1kn/b3B3/PPN2Knb/1n1RP3/1PQ1b1NN/1q3B2/1nQ5 w - - 0 1 illegal: No possible last move, all moves rejected
3R2Bk/RQr1P1r1/B2n4/1b3r1P/KPNQP3/R1B3q1/1N1b2r1/1nn3Qr w - - 0 1 illegal: No possible last move
1n1N2br/bK1Q2B1/2PnbB2/qP1N1n2/RR2r1r1/3P3Q/3P4/1Nk2bRB w - - 0 1 illegal: No proof kernel
4K3/5q2/RP2NbQb/1PNn1Bnn/3R1n2/Pr2QrRb/2P4k/r1Q1B1N1 w - - 0 1 illegal: No proof kernel
B2QB1K1/3P4/b1b1NP2/1QR2P2/3n2R1/2b2kq1/P1Q1r1rn/BRn2rrN w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 b5 d4 c5 h4 b4 h6 g6 d6 e6 a6 b3 d7 c4 h5 b2 d5 c3 a7 c2 d6 Qb6 d8Q+ Be7 h7 Bd7 h6 Nc6 Rh4 Qc7 Na3 b1B Rg4 Nd4 Nh3 Bc6 Bb2 c1N Bb5 Bd3 Nc2 Qb8 Ba4 Ba6 Rb1 Qb3 Qd7 Re8 a8B Qb8 Ba1 g5+ Kg3 Ke5 f4+ Ke4 f6 e5 f5+ Kd5 Nf2 e4 Qd8 e3 Nh1 e2 Qf1 e1R Qf2 Nf3 Nd4 Rf1 Qc2 Nh2 Ne6 Bf8 Kh3 Ne7 Bb5 Rg8 h8R Rg7 h7 Rg6 Rg8 Bh6 Rc4 g4+ Kh4 g3 Kh5 g2 h8Q g1R Qh7 R6g2 Rgg4 Bf4 Qf7 Be5 Kh6 Bc3 Kh7 Ng8 Qfd7 Ne7 Nf4+ Ke5 Rc5+ Kd4 Qb7 Ke3 Ne6 Kf3 Ba4 Qc7 Qb5 Qb8 d7 Qg3 Bb3 Ng6 Kg7 Nf8 Kg8 Re7 Ng7 Re8 Bf7 Ree2 Bh5 Ne6 Be8 Nd4 Ne6 Ref2 Kh7 Rd2 Kg8 Rde2
1rQ2N2/1PR3r1/2qbP2Q/1k2nnBQ/3rPR1K/2R4N/2Pbr3/1bnB1B2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 d5 Kg3 Kd7 e4 g5 h4 a5 b4 f5 h6 d4 h7 f4+ Kg4 a4 h5 f3 h6 a3 b6 Kc6+ Kg3 f2 b7 g4 Nd2 a2 Rh3 d3 Nc4 d2 Nb6 Ne7 Kh4 g3 Qh5 d1R Nd7 g2 Rc3 Qc7 Nh3 g1N Bg5 Rg8 h8Q Ne2 h7 Kb5 c6 Rg7 Rb1 Qb6 c7 Nbc6 b8R a1B Rb7 Rd4 Qg8 Bb2 h8Q Rb8 Q8h6 Bc1 Ra7 Bb7 c8B Bd2 e6 Ba8 Rc7 Ne5 Qgh8 Qc6 Ba6+ Ka4 b5 Nc1 Be2 f1R b6 Re1 Bd1 Re2 Qg8 Bb7 Bd3 Ba6 b7 Bc4 Rb5 Ba2 Rd5 Nf7 Rf5 Bb1 Rf4 Ne5 Bc4 Nc8 Qgh8 Bd6 Nf8 Ne7 Bd3 Rf2 Bf1 Re2 Qe8 Kb5 Qc8 Ba2 Qh5 Bb1 Q8h6 Nf5+
2QRn3/2RQNbNr/qN5q/qPQP4/1qP4P/brk3B1/q3R3/1B2nK2 w - - 0 1 illegal: No proof kernel
Bkq5/2r5/b3PPr1/QKBn2q1/4Bn2/4Q1PN/N1RQR1P1/1n1qbRq1 w - - 0 1 illegal: No proof kernel
1r4n1/5B1R/NNP1qPR1/nRK3q1/1P2r3/n2QrP2/nkbBNQ2/4b2B w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 h4 g5 c4 d5 b3 g4 f3 d4 h6 d3 h5 Kd4 h7 e5 b6 e4 b7 e3 f6 g3 h6 g2 Na3 d2 Rh5 Qd5 Ne2+ Kd3 Qe1 d1N Bd2 g1Q Qf2 Nc3 Bg2 Qe6 Bh1 Qg5 Rg1 Na2+ Kb5 a5 b4 Nc6 b8N a4 Na6 Bd6 Kb6 Na5 c6 Bb7 c5 Bg3 Nc4 Kc2 Kb5 a3 c7 Bc8 Nb6 Kb2 Rg2 Bb7 c8B Be4 Bb7 Bc2 Bd5 Rc8 c6 Re8 Kc5 Bh4 Qf1 Be1 Qf2 Nc3 Rg3 a2 Rg4 a1N Rg2 Qh4 Rg6 Na2 Re5 Qg5 Rf5 Qd7 Bf7 Re4 Rd5 Qe6 Rf5 Ne7 Re5 Rb8 h8Q Ng8 h7 Bb1 Qg7 Nc2 h8R Na3 Rh7 Bc2 Qf8 Nh6 Qd8 Ng8 Nf4 e2 Qd3 Re3 Qg1 Bg3 Qf2 e1R Ne2 Re4 Nf4 R1e3 Ne2 Bh4 Qf1 Be1 Qf2 Qeg4 Kd6 Qh6 Rb5 Qe6+ Kc5 Qg5+
3qRNR1/5b2/P2bb2Q/Qrbr1PBP/2Q5/1NP4n/B4nkn/KB2q2N w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb2 Ke5 a4 Ke4 h4 d5 f4 e5 c3 b5 c6 g5 f6 d4 f5 b4 c7 g4 a6 d3 a5 g3 h6 g2 f7 b3 h5 d2 h7 Be6 c8Q Nd7 a7 Nb6 a6 Bd6 f8Q Nh6 Ne2 Kf3 Qc4 e4 Rg1 e3 Ng3+ e2 Nh1 Rb8 a8B+ Nd5 Ra2 Rg8 h8N Ng4 Ka1 Nh2 Ng6 Rb5 Qh6 Re8 Qc2 e1Q Nf8 d1N Bd3 Nf2 Bg5 Re7 Qb2 Rd7 Qa3 Bf7 Re2 b2+ Ka2 Be6 Qa5 Bf7 Re4 Nf4 Bd5 N4h3 Be6 Be8 Bg8 Bf7 Re8 Be6 Na3 b1B+ Ka1 Ba2+ Bb1 Bf7 Nc2 Bb3 Qc5 Bbe6 Nd4+ Kg4 Nb3 Kf3 Rf1 g1B Qc4 Qe4 Rd1 Kg2 Rd5 Qe5 Rc5 Qe3 Rc8 Qe1 Rc7 Bg6 Qc6+ Ne4 Qb4 Be5 Nc5 Bc4 Qa5 Rd2 Rh7 Bd6 Rg7 Bb3 Be6 Bf7 Rg8 Bd4 Qcc7 Nef2 Bc4 Ba4 Ba2 Bab3 Qc8 Bbe6 Nb3 Bb6 Qc7 Rdd5 Qc4 Bbc5
b2n1q2/R1QQnP1r/NbBB4/P1brN3/4k3/2R1B3/Q1PPq3/2nKb1N1 w - - 0 1 illegal: No proof kernel
k1b2r2/PNr3NQ/2Qn2R1/bq3P2/NP3K2/1Q2R2P/2nBR2n/n2Bnn2 w - - 0 1 illegal: No proof kernel
r1BnqQ2/6Pk/3NnR1b/n2b1NP1/2n2bP1/2b2R1K/2Q1PRNr/1QB5 w - - 0 1 illegal: No possible last move
2n5/6Pr/QPR1nQNk/rn2P1R1/Nq3b1B/1Q1b2rK/P3N1n1/1r3B1B w - - 0 1 illegal: No proof kernel
K2rNRB1/1PPP1N1r/P3b1bq/1QB1R3/5N1r/2n1Qbk1/4r1B1/nR2b3 w - - 0 1 illegal: No possible last move
1B1qQn2/1b1B1PP1/3KQr2/1b2r2N/2rpP1Rn/6QP/kn1R4/3Nb1BR w - - 0 1 illegal: No proof kernel
8/3q4/R1r3k1/1n1b1pr1/BK1bq2n/Nq1PN1PP/Q1BRP2r/1QBR1N2 w - - 0 1 illegal: No possible last move
2BQB3/QN6/nB2Q2P/1q2R1P1/rPNRq3/b5p1/3P1k1n/Kb2qrNb w - - 0 1 illegal: No proof kernel
3n3Q/2K3Qr/1Rnr1P1p/1P2B2P/3Pq1Q1/bBbNq3/N1qk4/R2nNR2 w - - 0 1 legal: proof: g4 d5 a4 f5 f4 b5 axb5 d4 gxf5 d3 f6 Nd7 e4 Ba6 e5 Bb7 e6 Nb8 f5 Bc8 cxd3 Bb7 d4 Bf3 d5 Bh5 Be2 Bg6 Bf1 Bf7 exf7+ Kd7 Kf2 Kd6 Kg3 Ke5 d4+ Ke4 h4 g5 b4 c5 d6 e5 h5 a5 b6 g4 d7 h6 b5 c4 b7 a4 Rh3 a3 Nd2+ Ke3 Ne2 a2 Bg2 c3 Rh1 e4 Rf1 c2 Nc3 Qe8 d8Q Nc6 b8R Nge7 Rb6 Ra6 Bf3 Kd3 Kf4 e3 Bd5 e2 Bb3 e1N Ba3 c1Q Bd6 g3 Be5 g2 Qg4 Qc2 Nf3 g1Q Qb8 Bg7 f8N Rh7 f7 Nd8 f6 Nec6 Ne6 Bf8 Qa8 Bc5 f8Q Ba3 Qfg7 Ng2+ Kf5 Qgf2 Nc5+ Ke3+ Nd3 Qfe2 Rab1 a1B Na2 Bc3 Ne1 Kd2 Ra1 Ne3+ Ke4 Nd1+ Kd5 Qe3 Qb8 Bc1 Kd6 Ba3+ Kc7 Qg6 Qbc8 Qge4 Qa8 Nf7 Qah8 Nfd8 Rb7 Nb4 Rb8 Rd6 Rb6 Nbc6
r2n1rRB/Qq1q1N1k/3RP3/1B2KP2/1N1b4/2n5/QpPbP1b1/1Nq2Q1B w - - 0 1 illegal: No proof kernel
2q4k/3Bb2B/QNpN3n/RK1Prn2/1BRP3n/Nb1b4/3P1q1P/R2rQ3 w - - 0 1 illegal: No possible last move, all moves rejected
4k3/7K/Pn1B1bP1/qbQRP2P/1pN1R1Bn/2B2b1n/4r1Q1/N1Q1qRr1 w - - 0 1 illegal: No proof kernel
2b1Q2B/3RPR2/q5Pr/k1BbPn2/5P2/2r1b1QR/p1B1NrN1/3Qn1qK w - - 0 1 illegal: No possible last move
Rr3N2/1R1QP3/B1Pb3K/1qpN3N/R1bnqnqk/2B5/2QPr2P/5b1Q w - - 0 1 illegal: No proof kernel
1Bq5/r1QNPP2/5p1K/NkPB1b2/RbR3N1/1BPq2r1/Q5n1/brnQ4 w - - 0 1 illegal: No proof kernel
R1Nq1R2/BB1pQnr1/2bK3B/3P1N1P/n1P2q1P/3r3k/2Qqb3/1RQ3n1 w - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 f5 exf5 c5 a3 c4 b3 e6 bxc4 Bb4 c5 Bc3 Bg2 b4 Bh3 b3 Bf1 Bb4 axb4 Qa5 Ra3 Qb6 Ra1 Qd8 Ke2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 a5 f4 g5 f6 g4 d5 g3 c6 b2 b5 g2 f7 a4 f8Q a3 b6 a2 c7 Nc6+ Kd6 e5 f5 e4 b7 e3 b8B e2 f6 e1Q f7 Nge7 Ba6 Rh7 Bh6 Rg7 Nf3+ Kh3 Ba7 g1N Nh4 Bb7 c8Q Qd2 Nf5 Ne5 Qc1 Bc6 Na3 b1B Nc4 Rb8 c3 Bd3 Nb6 Be2 Bb7 Ra8 Rb1 a1Q Qe8 Qa5 f8R Qa4 Qc7 Qaf4 Nc8 Rb8 c4 Ra8 Qa5 Rb8 Qa4 Ra8 Qac2 Rb8 Ba6 Rb3 Bb7 Rd3 Qf7 Ng8 Qe7 Nf6 Qa2 Nfg4 Ra1 Nf2 Qac2 Nd1 Ra6 Nc3 Ra1 Kg2 h4 Na4 Rb1 Qb6 Rh3 Qd8 Re3 Rd4 Rc3 Rd3 Ra3 Kh3 Bf2 Nc3 Ra8 Na4 Ba7 Nf7#
1QQ1Bq2/1bP1K1nN/n1r5/2p1RR2/1n1bPN1Q/B1P2P2/k2q2rN/3R1r2 w - - 0 1 illegal: No proof kernel
1rB1N1bq/qP4K1/4PQR1/Nn3Qq1/B3p3/P1P2n2/3R1Nr1/1k1bB1bR w - - 0 1 illegal: No proof kernel
2Bb1n2/kpQKQP1P/r2QR1b1/PR2Pq1r/5B1N/3R3b/1Nq1N1n1/4n3 w - - 0 1 illegal: No possible last move
NQnk2B1/P2b2R1/2q1p1KQ/4P2n/1PR3rb/2rN1P2/3b4/BRB1rq1Q w - - 0 1 illegal: No proof kernel
k1BKnb2/1b6/N1qBN1Q1/3Pr3/3N4/P3r1n1/1B1PQpbP/nR2Q1bR w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kf3 f5 Kf4 c5 e4 Kc7 a3 b5 e6 Kb7 Ke5 g5 h6 f4 h7 g4 e7 c4 e8Q g3 Nf3 b4 Qe1 c3 Qb5+ Qb6 Bb2 g2 Ng5 g1B Qbe2 b3 Bh3 c2 Ne6 c1N Nc3 f3 Rb1 f2 Nb5 Qc6 Nbd4 Nh6 Kf6 Nf5 e5 Ng3 a6+ Ka7 Kf7 Nd7 Ke8 Nf6+ Kd8 Ne8 Bf5 Rg8 h8B Rg5 Bf6 Kb8 Be7 Bb7 Bh3 Ra7 Bd6+ Ka8 Bg4 Bc8 Bh3 Re7 a7 Bb7 Bg4 Nd3 Bf5 Nb4 Bh3 Nc2 Bg4 Ba6 Bh3 Na1 Bf5 Kb7 a8N Ka7 Bg4 Bb7 Nac7 Kb8 Na6+ Ka8 Nf4 Rf5 e6 Re5 Bf5 Rh7 e7 Rh3 Bc1 b2 Bc8 Nh5 Nfe6 Rhe3 Bc5 Ng3 Bd6 Nc2 Ra1 b1B Bb2 Ba2 Rb1 Bc4 Nb3 Na1 Nbd4 Nf6 e8Q Bb5 Qe7 Ne8 Qh7 Bd3 Qf7 Be4 Qg6 Bg2
rBQ1QB2/2NP1N1n/PKnq3Q/PPrr3b/5pB1/1r3R2/4R3/kbbR4 w - - 0 1 illegal: No proof kernel
bnrQ1B2/4N2q/5kPN/2pq4/3RP2N/1P1Q3n/KP2nnR1/bRB1r2B w - - 0 1 illegal: No proof kernel
2QbRq1q/B4Bk1/Q5Pb/P1NN1rQr/P1R4p/3RPb2/1N6/n1K1nb2 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 a4 h5 d4 c5 Kd2 b5 g4 f5 g6 c4 g7 Kf7 g5 h4 d6 f4 d7 f3 e6+ Kg6 e7 b4 e8R f2 d5 b3 d6 b2 Nc3 b1B Rh3 Nc6 Rd3 Nf6 Nf3 Be7 Nd5 Nb4 Ne1 Ng4 g8N Ne3 Ngf6 Ba2 Ne4 Ba6 Nc5 Kg7 g6 Rh5 Rb1 Qb8 d8Q Nec2 d7 Na1 Qc8 Nbc2 Rb4 Bd8 Ba3 c3+ Kc1 Qe5 Rc4 Ra7 Bh3 f1Q Be6 Qf8 Bf7 Rb7 Qd2 Rb5 Qg5 Bb7 Qc6 Ba8 Qa6 Qb8 Nf3 Ne1 Ne5 c2 Bb2 Qh8 Bd4 Qd6 Be3 Qdf8 Bf2 Rb6 Be3 Rf6 Bf2 Rf5 Bg1 Be7 d8Q Bb7 Qc8 Bd8 Rcd4 Bb3 Nc4 Ba2 Nb2 Bc4 Nc3 Bg2 Nd5 Bf1 Rde4 Bb5 Rc4 Bc6 Nd7 Bb7 Ba7 Ba8 Nc5 Bb7 Kd2 c1B+ Kd1 Bf4 e3 Ba8 Kc1 Bc6 Qg1 Bh6 Qg5 Bb7 Nc3 Bh1 Nd5 Bf3
K6b/3r1r1r/1qN2pbP/1RRQNkPN/Q5R1/P3nrQP/BB6/3qn3 w - - 0 1 illegal: No proof kernel
1B1QnR2/1b1K1q2/2P2P1Q/1rR1B1N1/r1N1P3/Pkp1n1q1/1bn1B2N/2nQ4 w - - 0 1 illegal: No proof kernel
1bk4q/n2R2NP/n1N1n1rB/3RP3/2n1q1Br/1RPQ1BP1/bK2pQ2/6Q1 w - - 0 1 illegal: No proof kernel
2Q4R/B2B1knP/1Pqr1n2/2Q5/p2NP3/1nb2NBQ/P1bqK1RR/n1r5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 c4 Nf6 cxb5 Ne4 d4 Nf6 dxc5 Ng8 b4 a5 h4 f5 e6 d5 e7 g5 b6 d4 h6 g4 b7 d3 h5 d2+ Kf2 f4 h7 f3 c6 a4 e3 Nf6 h6 Nbd7 b8B Nc5 b5 Bf5 c7 Ne6 c8Q Ng7 b6 Bc2 e4 Kf7 e8R Bb4 Bh3 Bc3 Ne2 g3+ Kf1 f2 Rh2 Qd6 Nd4 g2+ Ke2 f1N Ba7 g1Q Bd7 Qc6 Bb2 Rf8 h8Q Qg5 Qc1 d1N Nd2 Nde3 N2f3 Nd2 Ba3 Nb3 Bd6 Rb8 Bg3 Rb7 Rb1 Rc7 Rb2 Qf4 Rd8 Re8 Qh7 Re6 Rh8 Rd6 Rg2 Nc4 Qf5 Nca5 h7 Na1 Qh3 Qh6 Qg5 N5b3 Qc5 Qd2+ Kf1 Bd1 Rb1 Bb2 Qcf5 Qb7 Qa5 Rc2 Qac5 Qc6 Rh2 Bc3 Rb2 Rc1 Rc2 Qf4 Rcg2 Bc2+ Ke2 Qd2+
K4b1Q/R1nP2RR/QBB2n2/1bP1P1r1/3b2k1/Nq2B3/1Nr1b1pP/N6q w - - 0 1 illegal: No proof kernel
1b3Q2/p2rbn1q/1P1nbk1N/PR6/Q1B2B2/1PK1Q1Rq/bP3N1N/4R2b w - - 0 1 illegal: No proof kernel
b1BB2Nq/4RP1k/1Nr5/KB3pq1/PR3PR1/4n3/1P1Q1Qr1/bN1br1b1 w - - 0 1 illegal: No proof kernel
Rqk5/4PQ2/1pqb1QrB/N1q3P1/b1n2P1Q/1B1K1bBR/1PN5/2nN2q1 w - - 0 1 illegal: No proof kernel
1Nqr1NR1/2kpPBQ1/4PnnQ/2Pn4/Nb1q4/n1r1RR1K/3PQ3/3rB3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Bb7 b4 Ba6 bxc5 b4 Nc3 Qa5 Nb1 Bb5 axb5 Qd8 c6 f5 Kf2 a5 Kg2 g5 c4 b3 e4 b2 h4 g4 c5 g3 c7 f4 c8R a4 b6 a3 b7 a2 h6 Ra3 h7 f3+ Kh3 g2 h5 f2+ Nf3 g1Q h6 Ke7 Nc3 b1N Ng5 Ke8 Bc4 f1N Ne6 Nf6 Bb2 Rg8 h8Q Rg4 h7 Ne3 Na4 Rg8 Bd4 Qf2 Rf1 Be7 Qg7 Rf8 h8Q Rc3 Qhh6 Nc6 b8N Na3 Rb1 Qf4 Rf3 a1R Qf1 Rg8 Re1 Rd1 Bd5 Nb4 Re2 Nf5 Bf2 Nh4 Ree3 Ng6 Be1 Rf8 Qe2 Rg8 Ng5 Rf8 Be6 Nbd5 Nh7 Rg8 Rc6 Qc7 Bf7+ Kd8 Re6 Rh8 Rc6 Kc8 Re6 Bd8 Re8 Qc6 Rf8 Kb7 Re8 Ba5 Rd8 Re8 Rc8 Re7 Rg8 Re8 Nf8 Rd8 e6 Qb6 e5 Bb4 e7 Qa6 e6 Qd4 Qh5 Kc7 Qhh6 Qc8
B1n3q1/1P3kb1/2NP2R1/KP3n2/3rbB1N/R1Q1bp1N/2QRnP2/1Bb2n2 w - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 d6 Bg4 axb3 Na6 b4 Bc8 b5 Nb8 d4 Kd7 e5 Ke6 d5+ Kf5 d7 a5 Qd4 Ra6 Qd1 Rd6 exd6 Kg6 Kd2 h5 Kc3 e5 b4 f5 g4 c5 b6 e4 b5 c4 Bf4 a4 Kb4 a3 Qd4 h4 Nh3 a2 Qc3 e3 Ka4 e2 Ng1 e1B Bg2 h3 Nd2 h2 Ka5 Bb7 Nh3 Rh4 Nf3 Ne7 Rg1 Nc8 Bh1 Qe8 d8N Bg7 d7 Bd2 Nc6 Kf7 d8R Be3 Bg2 h1N g6+ Kg8 g5 Ng3 Qc2 c3 Rd7 Bh6 g7 Nf1 Rd6 Rg4 Nh4 Kf7 Be4 Qg8 g6+ Ke8 Rg3 Ba8 Rd1 a1B Rd2 Bb2 Rf6 Bc1 d6 Bb7 Bd5 Ba8 Ba2 Bb7 Bb1 Ba8 Qb3 c2 Qc3 Bb7 Nd8 Be4 Nc6 Qc4 g8B Bg7 Bh7 Qg8 Rf3 Nd7 Rg3 Nf8 Rf3 Ne6 Rg3 Bf8 g7 Nd4 Rg6 Kf7 Rf3 Bb2 Rg3 c1N Qc2 Nce2 Rf3 Qh8 Rg3 Bc1 g8Q+ Ke8 Qga2 Bg7 Qa1 Kf7 Qac3 Qd8 Bg5 f4 Bg8+ Ke8 Bd5 Nf5 Bh6 Bed4 Rgd3 f3 Bf4 Kf8 Qb4 Ke8 Ra3 Be3 Qbc3 Kf8 Nb8 Qe8 Ba8 Kf7 b7 Qg8 Nc6 Bd5 Be5 Rd4 Bf4 Be4
QK6/q2B1rnb/1b1r3P/5r1k/1bQr1BRB/4p2N/2PQP2P/Nb2R1R1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 c5 dxc5 e4 a4 Nc6 axb5 Ne5 fxe5 Qb6 Bg5 Qf6 Bc1 Qd8 Kd2 g5 Ke3 a5 Kd4 d5 b4 f5 b6 Kf7 h6 Kg6 c6 g4 b7 f4 b8Q f3 b5 g3 b6 g2 c7 a4 e6 a3 Ke5 a2 e7 f2 e8R d4 b7 d3 Nc3 d2 Nb5 Ra5 Nf3 g1B Nd4 Ne7 Nf3 Qd7 Qa8 Kh5 b8B Rh7 Bh3 f1B Ng5 Bb6 Rg1 Rf7 Bf5 Bb7 c8Q Bh3 Qc4 Bd5 Nd4 Qa7 Bd7 Nf5 Nb3 Bb4 Rg8 Ng7 Ba3 Bg4 Nh3 e3 Rb1 Ra6 Na1 Bf5 Qc1 d1R Qd2 Rf1 Re1 Bh7 Bc7 R1f2 Bd8 R2f4 Bh4 Rd4 Bb2 Nf5 R8g4 Ng7 Qc5 Rf5+ Kd6 Bc4+ Kc6 Be6 Qc4 Rf7 Nb3 a1R Ba3 Rd1 Na1 Ra5 Bb2 Raf5 Ba3 Qa5 Kb7 Qa7+ Kc8 Rd6 Bb2 Bd5 Be5 Be6 Bf4 Bd5 Qe4 Ba2 Qed4 Bb1 Qc4 Qa5 Kb8 Qc5 Qdc3 R1d4 Q3d3 Qa5 Qd2 Qa7+
2Nn2N1/1R1Q1prN/3b4/4QPK1/n7/r1Pr1BPq/2kPnBB1/1r1n1RQ1 w - - 0 1 illegal: No possible last move
N1r3r1/2nRP2P/3p1N1r/2bbr1kB/3P4/1N1P2Bb/3nQKQ1/Q2R2bR w - - 0 1 legal: proof: d4 b5 f4 h5 g4 e5 gxh5 b4 fxe5 b3 axb3 Qg5 b4 Qe3 b5 Qd3 cxd3 Rh7 Nf3 Rh6 Ng1 Rh8 e4 Ke7 b4 f5 h4 a5 h6 g5 b6 c5 e6 Kf6 b5 g4 h7 d6 h5 g3 b7 g2 e7 a4 e8Q c4 b6 a3 h6 f4 e5+ Kg5 e6 c3 Kf2 a2 Na3 c2 Ne2 g1R Nc4 Na6 b8Q Nc7 b7 Nf6 Nb6 Bg7 e7 Ra5 Qg8 Be6 Qa7 Re5 b8N Bd5 N8d7 Rg4 Bd2 c1B Na8 Ba3 Nc1 Bc5 Be1 f3 Nb3 Rh4 Rb1 a1R Be2 Ra4 Qa6 Rc4 Qa1 Rh3 Qc2 Rh5 Qe6 Rg8 h8R Rc3 h7 Rh6 Rd1 Ne4+ Kf1 f2 Bh5 Rc4 Nf6 Rc3 Ke2 f1B+ Ke3 Rc4 Bg3 Bh3 Qg2 Nd2+ Kf2 Re1 Nd7 Be5 Nf6 Bf4 Qee4 Re3 Qef3 Re5 Qe4 Rb4 Qe2 Rbb8 Qb1 Rbc8 Qa1 Rg7 Rd8 Rg8 Ke1 Be3 Rd7 Bg1 Qge4 Bh2 Kf2 Ba7 Q4f3 Bc5 Qg2 Bg1+
6Q1/3P2PB/r1PP3p/1pBqn1kr/r7/2RRNQ2/1NR3B1/nn1bb1KN w - - 0 1 illegal: No proof kernel
1k1B1nr1/1P2b2Q/2n4p/bN1PPP1b/2RRN2n/K3BQ2/prqR4/1BQ5 w - - 0 1 illegal: No proof kernel
1RnB3K/P6b/p3P3/R1Pb1BQ1/PnrnNb2/NNQ1rq2/pQ2R3/5k2 w - - 0 1 illegal: Other
Q1R2N2/1B4k1/r1NqP2n/p2QNnbK/2P5/b5P1/P2pBb2/B1R1rQ1q w - - 0 1 illegal: No proof kernel
5R1B/kq1nQ3/1r1P1P2/N1Kp1N1B/B5b1/4nP1Q/RNb1P1pQ/r3b1q1 w - - 0 1 illegal: No proof kernel
Q2B1r2/K1QqN3/p3p3/B1P1PPQq/R3rPb1/5B1R/N1Nnnkb1/7q w - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 c5 gxf5 g4 d4 Bh6 dxc5 Bg5 hxg5 Kf8 Qd3 Kf7 Qd1 Ke8 Kd2 Kf7 Ke3 d5 Kd4 h5 c4 h4 b4 g3 f4 a6 e4 e6 g6+ Kf6 g7 h3 e5+ Ke7 c6 g2 Kc5 h2 c7 d4 Kb6 d3 c5 d2 Nc3 Kf7 Na2 Qd4 Ne2 g1Q Bg2 Qd7 Nd4 Ra7 Qf3 d1B Qa8 Nc6 Bd2 Bb7 c8N Bg4 Bf3 Qd1 Ne7 Nf6 Nc2 Nd4 Be1 Rf8 Bc3 Bc8 g8Q+ Ke8 Qg7 Ne2 Qg5 Ne4 Bd2 Kf7 Be1 Rc7 Bh4 Bb7 Ka7 Rcc8 b6 Rcd8 b5 Nd2 Be1 Be4+ b7 Bd5 b6 Bc6 Rg1 h1Q Rg3 Qh5 Rh3 Qb1 Qh4 Kg7 Qg5+ Kh7 Bh4 Qh1 Be1 Qd4 b8B Qd7+ b7 Bd5 Qh4 Kh6 Bc7 Be4 b8Q Bc6 Qb4 Rb8 Qa3 Rb4 Qa5 Re4 Qg3 Qh4 Qg2 Kh5 Qg1 Bb7 Bd8 Bd5+ Qc7 Bb7 Rg3 Qg5 Qg2 Kh4 Qg1 Qh5 Qg2 Nb1 Ba5 Nd2 Nc3 Bh3 Bg4 Rb4 Ra4 Be4 Rd3 Bf3 Na2 Re4 Qf1 Kg3 Qe1+ Kg2 Qh4 Kf1 Qg5 Bfg2 Rg3 Kg1 Bf3 Bg4 Rh3 Kf2
Rq1nKB1q/3N1RP1/2B2B2/1rP2pr1/b2b3k/3Q2R1/P1NP1pqN/1n4Q1 w - - 0 1 illegal: Other
2K4k/R4PbN/2B4N/4PqBQ/3rnrn1/p1PP3R/NbBQp3/3b1q1Q w - - 0 1 illegal: No proof kernel
1N2Q1qQ/1k2P2P/2b1B1nR/4RPr1/2PK1q1n/Rb3pBN/B2Qp3/4b1r1 w - - 0 1 illegal: No proof kernel
rR1NR2Q/3Pn1pq/2q1pNn1/2r4B/K1b4B/1n3PPP/BN4k1/1Q1R3b w - - 0 1 illegal: No possible last move
2K1N1q1/1Pn2r1B/k7/rRBnR3/Q1b3p1/QPrqP2b/1p3BPN/1Q2N3 w - - 0 1 illegal: No proof kernel
2N4r/4QRbN/3PPbP1/5Bnk/1Bp2q2/1nR2Pb1/2pQB3/1KRQ2rb w - - 0 1 illegal: Other
1b2NQ1N/3br2k/nP1PpnR1/2pB1rK1/4q2N/1RBPP1R1/3Q2b1/2b4B w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 Kf2 a5 Ke3 f5 Kf4 Kf7 h4 Kg7 b4 c5 h6+ Kh7 b6 a4 e3 a3 d3 a2 b7 Nc6 b8R Kg6 h7 Qe8 d6 Na5 b5 Nc6 h5+ Kg7 h6+ Kg6 Bd2 Qf7 Bg2 Bg7 Nf3 Bd7 Na3 Nb4 Rg1 Nf6 Bh1 Na6 Bc3 Qe6 Rg3 Ra7 Qd2 Rf8 h8N+ Kh7 Rag1 a1B Nh4 Bb2 Rb7 Bc1 g6+ Kg8 Rb8 Qe4+ Kg5 f4 Rb7 f3 R1g2 Rf7 h7+ Kf8 Rg1 f2 Rb6 f1B Rb7 Ke8 Rb6 Bf8 g7 Bg2 g8B Bg7 Rb7 Rf8 Bd5 e6 b6 Rf7 Nb5 Kf8 Nc7 Re7 Ne8 Ra8 N8g6+ Kf7 h8Q Bf8 Qh6 Kg8 Ra7 Bg7 Nc7 Rf8 Ne8 Rff7 Rf1 Bh8 Qf8+ Kh7 Rf4 Ng8 Rfg4 Bf6+ Kh5 Bg5 Nh8 Rf5 Ra8 Ref7 Ra7 Bd8+ Rg5 Re7 Ra8 Rff7 Rg6 Bc7 Kg5 Bb8 Ra7 Nf6 Ra8 Nb4 Ra3 Na6 Rb3 Ng4 Rg8 Rf3 Rg6 Nf6 Bc4 Rf4 Bd5 Rf5+
n1R4b/Q2B3b/p1b3p1/P2P2P1/1R1B3B/rr3RQq/2k1K1Pb/1n1N2QN w - - 0 1 legal: proof: e4 d5 h4 c5 b4 f5 exf5 d4 bxc5 d3 cxd3 Qd7 d4 Qd6 d5 Qc7 Ba6 Qf4 Bf1 Qg5 hxg5 Kd8 Qg4 Kd7 Qd1 Ke8 d4 Kd7 f4 b5 a4 h5 f6 e5 d6 Ke6 c6 Kd5 f5 Ke4 f7 b4 c7 b3 f6 h4 d5 h3 d7 h2 d8B b2 Bf4 Nd7 Be3 Nb6 Ne2 Bd7 c8R Bd6 f8Q Rh3 f7 Bc6 Qe7 Nf6 Bd4 Rb3 f8Q Bb8 Qc1 Kd3 Nbc3 b1B Bc7 e4 Bg3 e3 Ra3 Ne4 Qf2 Nd2 Bh4 Bc7 Rg1 h1Q Ng3+ e2 Nd1 Qh3 Nh1 Bh2 Qd6 Bc2 Qc5 Nb1 Qg3+ Ke4 Kf2 e1B+ Ke2 Bc3 Qa5 a6 Qc5 Rb8 a5 Na8 Qa7 R8b7 Ra4 Ra3 Rb4 Bb2 Kf2 Ba1 Bb5 Bc3 Rf1 Rb8 Ne3 Ba1 Ba4 Kd3 Ke1 Bb2 Rf3 Bc3+ Kf2 Ba1 Qg1 Rb5 Rc4 Rbb3 Rb4 Kd2 Nd1 Bh7 Bb5 Kc2 Ke2 g6 Ba4 Bc3 Bb5 Bb7 Bd7 Bc6 Be3 Bf6 Bd4 Bh8
1N3R2/2b3pK/1k1nQQ1q/1P2prb1/2BPP2B/1R1Rr1r1/1Q1nrP2/N3N3 w - - 0 1 illegal: No possible last move
5n1Q/B1Pb2rq/1PNQRNP1/7n/1b2p3/kBP1R3/p1B1K1Qn/n4Nr1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 d5 b4 Kd7 f4 h5 c6+ Kd6 f6 a5 c7 e5 f7 a4 g6 d4 g7 e4 g5 d3 c3 d2+ Ke2 h4 f5 a3 b6 a2 b7 h3 f6 h2 b5 Kc5 Qc2 d1N Be3+ Qd4 Nh3 Kc4 Nd2+ Kc5 Nf2 Bh3 Ng4 Nd7 b8N Nh6 g8B Rh7 Nc6 Rg7 g6 Rb8 Rb1 Rb6 Rg1 h1N Rg3 Bd6 Bf2 Ne3 f8Q Rb7 Qa8 Nf8 f7 Qb4 Nf6 Ng4 Qd8 Nh2 Qd7 Be7 Qd6+ Kb6 Bg1 Bd7 Qb2 Qc5 Bf2 Nc2 Re3 Na1 Bg1 Nh7 f8Q Qd5 Qa8 Nf8 Rd1 Qf5 Bb3 Qh3 Bc2 Qh6 Bh3 Qh8 Be6 Qh7 Nf1 Rb8 Beb3 Ng3+ Ke1 Nh5 Ke2 Rb7 Rd5 Rb8 Re5 Rd8 Re6 Rb8 Qg3 Bb4 Qg2 Kc5 Qba3 Rb6 Ne5 Rd6 Nc6 Rd1 Bf2 Kb6 Qe8 Ba5 Qd6 Bb4 Qf7 Rb1 Qg8 Rc1 Qh8 Rd1 Ng3 Rg1 Nf1 Ba3 Rd3+ Bc5 Nd8+ Ka5 Rg3 Bb4 Ba7 Nf3 b6 Nh2 Re3 Kb5 Bb1 Ka5 Nc6+ Kb5 Bd5 Ka4 Bc2+ Ka3 Bc4 Rf7 B4b3 Rg7
1rN4N/2PP2p1/2KBbP2/1n1N2QR/1pb4n/Bk2b1bQ/3rR2P/1q4QB w - - 0 1 illegal: No proof kernel
3R4/1pN1RQr1/1PNPQ3/3Bpr1K/q1Rb1b2/BP2n1P1/kB1q4/3rQb2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 e4 g5 exf5 g4 b4 g3 hxg3 Na6 g4 Nc5 g5 Nb3 axb3 Be6 Ba3 Bd7 Bc1 Bc8 Ke2 Kf7 Kf3 e5 Kg4 c5 d4 a5 f4 a4 g3 h6 g6+ Kf6 g7 c4 b5 a3 b6 a2 d6 c3 d5 c2 d7 Ke7 f6+ Kd6 f5 Kc5 f7 Kb4 f6 Ra4 Bc4 Rh7 Ne2 Bc5 f8Q Ne7 g8Q Rg7+ Kh5 Bd4 Qff7 Nf5 Nbc3 Ne3 Bb2 c1B Qe1 Bd2 Rc1 a1Q Rh2 Ra8 Rh4 Qa4 Nb5 Rb8 Nc7 Ra8 Ba1 Ka3 Bb2+ Ka2 Qe6 Rb8 f7 Ra8 f8B Rb8 Rf4 Ra8 Be7 Rb8 Kh4 h5 Qgf7 Ra8 Rf6 Rb8 Bea3 Ra8 Kh3 h4 Rf1 Qg5 d8R Bd7 d6 Bb5 Bd5 Rb8 Rd7 Rf8 Rd8 Bd3 Rc4 Qh6 Qfe8 Rf5 Q8f7 Qg5 Nf4 Be2 Ng6 Qf4 Rf2 Qh6 Ne7 Bf1+ Kh2 h3 Nc6 Bc1 Rf4 Ng2 Rg4 Bf4 Rh4 Qg5 Rhh8 Qh6 Rhe8 Ne3 Re7 Qg5 Kg1 h2+ Kf2 h1R Kf3 Qh6 Qfg6 Nc2 Kg4 Qh2 Qf7 Qd2 Qe6 Rg1 Kh4 Ne3 Qgf7 Bd3 Qf2 Rd1 Qe1 Rf6 Kh5 Bf1 Qe8 Rff7 Qf8 Rf6 Qff7 Rf5+
2QrBb2/2B5/3Q2bq/3p1NPN/2r1kP1b/prn1N1QR/P1q1P2R/2R2K2 w - - 0 1 legal: proof: g4 c5 d4 g5 b4 f5 bxc5 e5 gxf5 Nc6 dxe5 g4 h4 Nd4 Rh3 Ne6 Rh1 Ng5 hxg5 Qb6 Bd2 Qf6 Bc1 Qd8 c4 Kf7 e6+ Ke7 c6 d5 c5 b5 c7 h5 c6 Kd6 f6 Ke5 f7 a5 e7 g3 e8N a4 Nd2 g2 Rh3 b4 Nf6 h4 Nh5 b3 Nc4+ Ke4 Ne3 b2 Nf3 g1B Nd4 b1R Ndf5 a3 Qb3 Nf6 f4 Be6 c8Q Ra4 c7 Rc4 Qcb8 Bh2 c8Q Qc7 Q8b6 Bd7 Qd6 Be8 Kf2 Qc5 Bd2 Bg3+ Kg2 Be1 Ba5 Rb2 Qc3 Rb3 Rc1 Bg3 Rh2 h3+ Kg1 Bh4 Bc7 Nd7 Qe1 Nb6 Qg3 Na4 Kf2 Nc3 Ke1 Be7 f8R Bg6 Rf7 Bf8 Rh7 Qc6 Rd1 Ra4 Rf2 h2 Ne7 h1Q Ng7 Nb1 Ne8 Bg7 Rc1 Qc2 Rh6 Qh3 Rh2 Rc4 Rh7 Bh6 Ng7 Nc3 Kf2 Qe6 Bh3 Rd8 Kf1 Be8 Bg4 Qf6 Bd7 Qf8 Ne7f5 Bg6 Be8 Qh8 Ne6 Bf8 Rh5 Qh6 Neg7 Bh7 Qg4 Be1 R5h3 Bf2 Nh5 Bh4 Qg3 Bg6
1RnN3B/2NqBn2/KP3p1p/N1P1k3/3R3P/4rQRq/1P1q1r2/n3QB1b w - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 d5 d4 Bh6 e3 Bg7 dxc5 d4 Bd2 d3 Bc1 Bd4 exd4 Qd5 Na3 Qd7 Nb1 Qd8 Kd2 Kd7 Kc3 Ke6 Kc4 a5 g4 a4 h4 h6 d5+ Ke5 g6 e6 g5 d2 d6 a3 d7 a2 b6 Nf6 Kb5 Kf4 c4 e5 c6 e4 c7 e3 g7 e2 g8R e1N g6 Ra7 g7 Bb7 c8Q Nc2 c5 Qe8 Ne2+ Kf5 Rh3 Nc6 d8B+ Qd7 Nd4+ Kf4 Nb3 Qd6 Rg3 Ke4 Qe6+ Ne5 Na3 Ne8 Bf6 Qd7+ Qc6+ Kf5 Qe1 d1Q Bcg5 Q1d2 Rd1 a1Q Na5 Qa2 Be7 Na1 Bgf6 Qae6 Rf8 Kf4 g8N Qh3 Bg7 Ba8 Bgf6 Rb7 Ka6 Nd6 Nb5 Nc8 Nc7 Rh7 Bh8 f6 Bg2 Nf7 Bf1 Rg7 Rd8 Kf5 Qg2 Rg4 Qf3+ Rf4 Re8 Qc3 Rd4 Qd2 Nd5 Rc7 Rd8 Rc6 Nc7 Re6 Re8 Re3 Rf8 Na7 Rb8 Ke5 Bf8 Nc8 Ne7 Bd5 Nec6+ Kf5 Nd8 Ke5 Be7 Ba8 Qfe2 Rf2 Q2d1 Bg2 Qf3 Bh1
8/2prP1P1/1BK4N/N2P3k/n1P1Br1q/N2RQrb1/1qpq4/n1Q1RQR1 w - - 0 1 illegal: Other
k2Nnr1Q/3PK1R1/2R5/1QR1pbN1/2P2p2/rBQ1P1B1/4Pn1N/q2nn1n1 w - - 0 1 illegal: No proof kernel
3B2kr/bb1Q1R2/2n2R2/b1pQpNKn/2RnP1P1/2PN4/nqP4Q/1B2B3 w - - 1 2 legal: proof: a4 b5 axb5 h5 g3 h4 gxh4 g5 f3 g4 fxg4 a5 Bg2 Ra6 Bh3 Rc6 Bf1 Rc3 dxc3 Bh6 Qd2 Bg7 Qd1 Bf8 Kd2 c5 Ke3 d5 Kf4 f5 e4 Kf7 b4 d4 h5 d3 h4 a4 b6 d2 b5 a3 h6 a2 h7 e6 b7 Qa5 h5 e5+ Kg5 f4 h6 f3 b6 f2 Bc4+ Be6 Nf3 f1N Na3 Nd7 b8R Qa8 b7 Qa6 Ne1 Nb6 Nb5 Ne7 Nd3 Ng3 Nd4 Nh5 Nf5 Bd5 Rf1 Nc6 Rf2 Bd6 Rf8+ Ke6 b8Q Qb5 Qb7 Bb8 Qc7 Qb2 Rf7 Ba7 Rb1 a1B Ba2 Qa3 Rb4 Bb2 Ra4 Qb4 Bb1 Ba3 Qb7 Qb2 Rc4 Bb4 Rf3 Ba5 Qa8 Re8 h8Q Rf8 Qh7 Rh8 Qh1 d1N Bd2 Ne3 Qh2 Ne7 Qd8 Bb7 Be1 Nc6 Qg7 Nbd5 h7 Ndb4 Rf1 Re8 h8B Na2 Qh7 Rf8 Bf6 Rh8 Qdg8 Ncb4 Bd8 Nc6 Ng3 Nf5 Qhg7 Nfe7 Nf5 Nd4 Rf6+ Kd7 Qd5+ Ke8 Rg6 Nec6 Qgd7+ Kf8 Rg7 Nf6 Rf7+ Kg8 Ng3 Nh5 R1f6 Nf4 Nf5 Nh5
bRr1b3/1P1B2Q1/Pp1qQ2n/p2Rb1Nn/1PNB1k1P/5N2/2n1R1B1/3n2K1 w - - 0 1 illegal: No proof kernel
3R4/R1nn3K/n1Npb1P1/B2B3k/1P2QP1n/rq3p2/1Q1PQNqb/N2B4 w - - 0 1 illegal: No proof kernel
1Q5K/B1p3r1/rN2npn1/Q1rNk1P1/2P1rRn1/N2b1R1P/3P4/3B1BbQ w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 e4 d5 exd5 g4 b4 Qd6 bxa5 Qa6 Na3 Qf6 Nb1 Qg5 fxg5 Bd7 Bh3 Bf5 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 b5 a4 b4 c4 e6 a6 g3 a5 b3 a7 b2 h3 f6 h6 g2 h7 Na6 Ra3 Nc5 a6 Bd7 Rf3 Ne4 Ne2 g1N Nec3 Ng3 Na3 b1R Bb2 Ne7 Ba1 Rg8 h8Q Rb5 Qh7 Rb7 Qf5 e5+ Kg4 Ne4 Kh5 Rg7 Kh6 Rb5 Qc1 Re8 a8B Nf2 a7 e4 Bc6 e3 a8N e2 Nb6 Ra5 Ba4 e1R Bd1 Ne2 Rg1 Rea8 Rg4 Rb5 Rgf4 Ra6 Qcb1 Nd4 Qc1 Rg8+ Kh7 Rg7+ Kh8 Ne6 Bb2 Ng4 Qa1 Kc5 d6+ Re5 Qfb1 Re4 Ncd5 Kc6 Bd4 Rc5 Qb4 Bc8 d7 Kd6 Qc1 Bb7 Be3 Ke5 d8Q Bc6 Qb8 Ba4 Rf2 Bc2 Qa5 Bd3 R2f3 Rg6 Ba4 Rc6 Nc8 Nh2 Bg2 Rg7 Ba7 Ng4 Ncb6 Rf7 Qh1 Ng6+ Kg8 Bc5 Bf1 Bg1 Bb3 Rc5 Bd1 Ngf8 Kh8 Re7 Na8 Rg7 Nab6 Ng6#
N1R2N2/6Bp/n1rnn3/PKQ3b1/1p1QP1Bk/2Pb2rP/6Rn/Q2B2Rb w - - 0 1 legal: proof: f4 a5 g4 f5 b4 c5 bxa5 e5 fxe5 f4 d4 Qf6 dxc5 Qf5 gxf5 Bd6 Bd2 Be7 Bc1 Bf8 Kd2 Ke7 Kd3 g5 Kc4 d5+ Kb5 b6 a4 g4 e4 f3 c3 f2 e6 Kf6 e7 g3 e8R d4 a6 d3 a7 d2 h3 Kg5 c6 g2 f6 Nh6 c7 Bc5 f7 Ng4 f8Q Ne3 Ra2 Be7 Na3 Rg8 Ne2 g1N Nd4 Nf3 Ne6+ Kh4 Nc4 Bg5 Be2 f1N Rg1 N1h2 Qc5 Na6 Nf8 Be6 a5 Rc8 a8Q Bd5 Qf1 d1B Qa7 Be6 Rd2 Bg4 Ba3 Bc2 Qa1 Bd3 Bd1 Rg7 Rdg2 Nd4+ Ka4 Ne6 Kb5 Bf3 Qd4 Rd8 c8B Rd6 Bd7 Rg6 Rc8 Rc6 Be7 Rg8 Bf6 Rg7 Rg3 Bh1 R3g2 Nec5 B7g4 Ne6 Qe7 Rg6 Qec5 Rg7 Ka4 Rg8 Bg7 b5+ Ka3 b4+ Ka4 Rd6 Nb6 Rc6 Na8 Nc4 Nd7 Rf8 Kb5 Rf3 Nf8 Re3 Qe7 Rg3 Qec5 Nd6+
r2B4/2R1r2P/bn4P1/1Q1Qn1K1/qP2Bbp1/pN3B1k/1P4Np/r2QRN2 w - - 0 1 illegal: No proof kernel
KQ1n2N1/2B1P1Pb/1pb2qrB/3nP1NN/2r2R2/Qpb2RP1/2Bk3p/7Q w - - 0 1 illegal: Other
nq2Rb2/qPBP4/4p3/2PN1bp1/2n2QrP/1B1NN3/2RQ2pB/k2rRK2 w - - 0 1 illegal: Other
1qn5/1QbNP3/prRN4/2R1pB2/1K5k/P1B1PP2/Np1Bn1Rb/3n1b1Q w - - 0 2 illegal: No possible last move
R1Q1QN1q/1n3B2/PrB2B2/1RP1r3/r1p4n/1pn1Np2/N1PbPR2/1k5K w - - 0 1 illegal: No extended proof kernel
5r1q/R5n1/1B2qb1k/NP1pPpRb/1p3KP1/1PQ3Q1/1NR4r/BB1q2Q1 w - - 0 1 illegal: No proof kernel
1KN5/P3q1q1/PR2qb2/1QP2k2/3Q1N1p/p1pbRBB1/1Q5P/r1nnR2N w - - 0 1 illegal: No proof kernel
Q3K3/N4BQp/4Q3/3PP1b1/Np1nq1NP/2Pp4/1Rq1q1nB/RbRr3k w - - 0 1 illegal: No proof kernel
1n5B/1RrP1pp1/p3bq2/K1Q2P1Q/RN2k1n1/PNP4q/2b5/QBR1bB2 w - - 1 2 illegal: Other
q3BR2/Bk1P2pb/1b3p1R/KQr1N2Q/3p4/3R1N1q/1P1rPPrN/1nQ5 w - - 0 1 illegal: No possible last move
n2n4/1B1pNqRR/2b1Q2r/1NPB3p/1P2p3/rPB1P1r1/2K1r1k1/1QNR4 w - - 0 1 legal: proof: f4 g5 fxg5 c5 d4 b5 dxc5 e6 g4 b4 h4 b3 axb3 Bd6 b4 Qc7 g6 Be5 g5 Na6 h5 Qd8 h6 Bg7 hxg7 Nb8 Kd2 Ke7 c4 a5 e3 h5 c6 Kd6 c7 Ke5 c5 Ke4 b3 f5 Rh4+ f4 Ra4 e5 Ba6 Nf6 g8R Qf8 g7 Nd5 g6 Nb6 Rh1 f3 Kc2 f2 Ne2 Kf3 Nbc3 f1R Bb7+ e4 Bb2 Re1 Qb1 Nc6 Nb5 Rh6 Bc3 Nd8 Nc1 Kg2 Rh8 Qf1 g8B Qf7 Ra2 a4 g7 a3 Rh7 Ra6 Ra1 a2 Rh4 Na8 Rg4+ Kf3 Rg5 Rag6 Rg2 Rg3 Rg1 Qg6 Bgd5 Qf7 g8Q Kf2 Qg6 Kf3 Qe6 Kf2 Ba6 Bb7 c8N Bc6 Bb7 Kf3 Ne7 Kf2 Qb2 Kf3 Rb1 a1R Rg2 Ra5 Ra1 Ra3 Qb1 Rh3 Rg6 Rg3 Rgg7 Kg2 Nd3 Qe8 Qb2 Qg8 Rd1 Qf8 Qb1 Qf7 Nc1 Re2+
RBnrR3/1p1R3Q/6q1/3B1Nk1/1rpQB1r1/PN1p2P1/1P1P2Kb/3n1r1Q w - - 0 2 illegal: Other
Knk3N1/RpB1R1Qp/2N1qrP1/PP1n4/B1RqQ3/2Q2Np1/rr4P1/4q3 w - - 0 1 illegal: No proof kernel
6Q1/2kpr3/1NP1qqr1/3P3R/3R3p/B1P1bKpN/1nqNB1RP/Q2Q3q w - - 0 1 legal: proof: b4 f5 g4 c5 gxf5 b5 bxc5 b4 a4 Na6 f4 Nh6 e4 Nc7 f6 Ne6 f5 Ba6 e5 Bb5 axb5 Ng5 e6 Ng8 Ra2 Nf7 Ra4 Qc8 exf7+ Kd8 Ra5 Kc7 Ra1 Qd8 Ke2 h5 d4 a5 c6 e5 c3 g5 d5 b3 Nd2 g4 Bb2 a4 Nh3 g3 Ra2 h4 Ba3 b2 Kf3 b1Q Be2 Bh6 f8Q Qc2 f7 Nf6 Qg8 Ne4 f8Q Nc5 f6 Nd3 f7 Rh7 Rf1 Nb2 b6+ Kc8 b7+ Kc7 b8N Be3 Qb4 Qf6+ Qf4 Rg7 f8R Re7 Rg1 Qff5 Rg2 Qf6 Bb4 a3 Na6+ Kb6 Ra1 a2 Nc5 Kc7 Ba3 Rd8 Rb1 a1Q Na4 Rb8 Rf7 Rb4 Qf5 Rg4 Rh7 Rg6 Qf4 Nd3 Rb4 Nb2 Nb6 Qab1 Qf5 Qa1 Rf2 Qac1 Rd4 e4+ Kg2 Qa1 Rh5 Qd3 Qb3 Bh6 Bd1 e3 Kf3 Qdb1 Rg2 e2 Qa4 e1Q Qb3 Qee5 Be2 Qee6 Qa2 Bf4 Qc2 Qh1 Qc1 Qb1 Qd1 Qc2 Qaa1 Be3+
k1b5/Bp3Qbp/K4r1N/p3nbPn/Q1nNP3/1P1N1B2/Q6P/R4BRb w - - 0 1 illegal: Other
Nq2q3/1Bp4N/r1PQ3N/bp1b3p/KPQ2Pqk/6q1/b3BRRP/2B3Q1 w - - 0 1 legal: proof: d4 e6 f4 Ne7 g4 Nf5 gxf5 Qf6 d5 Nc6 d6 Ne7 Nd2 Ng8 Nc4 Rb8 Nb6 Qg6 Qd2 Qf6 Na8 b6 Qd1 Ba6 e4 Qg5 Ne2 Kd8 e5 Kc8 Nd4 Kb7 Nf3 Re8 Ng1 Re7 dxe7 Kc6 a4 f6 exf6 Bb5 a5 Nh6 a6 Nf7 Nh3 Nd8 Ng1 Nb7 axb7 a5 Kd2 Kd6 b8Q a4 e8B a3 c4 e5 f7 e4 b3 e3+ Kd3 e2 f6 Ke6 Kc3 Kf5 c5 Kg4 Kb4 d5 Bb2 a2 Bg2 d4 Bc1 d3 Bf1 d2 Rb1 a1Q Bb2 Bc4 Bc1 Kh4 Bc6 e1Q Be2 Qgg3 Rb2 g5 Nh3 g4 Rf1 Qa7 Rf2 Bd5 Bb7 h5 Qc8 Rg8 Qe6 Qb8 Ka4 Rg5 c6 Bb4 f8Q Ba5 f7 Re5 Qg8 Re3 Qc2 d1B Qc4 Bc2 f8N Bb1 Qgg6 Ba2 Nh7 Rc3 Qd6 Rd3 Bf3 Qee8 N3g5 Rd1 Nf7 Rg1 Bd2 Ra1 Be2 Qh3 Bf1 g3 Re2 g2 Bc1 g1Q Kb5 Bd2 Nh6 Bb1 Ra2 Qf2 Qg1 Qfg3 Rg2 Qhg4 Bd3 Bb4 Raf2 Ra6 Be2 Ba5 b4 Ba2 Ka4 b5+
1R2rN2/2N1PP1R/5r1q/2n2kbP/N2K1p1Q/pBBn1p2/1p2P3/3QBbR1 w - - 0 1 illegal: Other
B4NBN/n3pb2/1pPp4/B1RRrnbP/Q4q2/1Q1P3Q/1rpP1k2/2K1R3 w - - 0 1 illegal: No proof kernel
b1K2n2/5Pr1/Bp3B2/bP1k1qRp/P1R2R2/QQQpB2p/1NN2q1P/4n3 w - - 0 2 illegal: Other
1Qq1Q1b1/R6B/K1N1p1Np/3pp1nP/2NqP3/Q2RB1P1/3PbBk1/1r1r4 w - - 1 3 illegal: Other
6K1/pP3N1p/2QbpbQP/3r2Qp/3kP3/1B2r1N1/R1qBq2P/1B1N1Rn1 w - - 2 3 illegal: Other
RQNk1B1Q/3b1nRK/qq2Bb2/3P1N2/2qrBp2/2N1pP1r/4PnP1/1R2b3 w - - 0 1 illegal: Other
2nrNb1R/2pbQ3/Pq2nK2/k1P1pPB1/1qB1P1n1/3NB3/N2R4/1Qrr2R1 w - - 0 1 illegal: No proof kernel
5N2/2Bp1pnP/kN2P2R/b1Bn1Pq1/1n1R3R/3rNQ1B/1rqPKrb1/7Q w - - 0 1 illegal: No proof kernel
1KQ2N1B/nbprRQp1/1N1RBPqb/4r1k1/3qnnB1/1R1P2P1/2Pr4/2Q5 w - - 0 1 illegal: Other
KN3nrn/2b2p1B/Pp5Q/1PN5/2bkbPnb/R1N3B1/Q3R1P1/1rQ1q2R w - - 0 1 illegal: No proof kernel
nq1B1nk1/1P2R1p1/p1bP1B2/bb4N1/5bP1/PK1Q4/1Q1rRN1r/rN1Q1B2 w - - 0 1 illegal: No proof kernel
3bQ3/6Q1/1p4pn/p1P1q1PQ/RN3NP1/1Pk1n1K1/r2rR1br/1BNRBn2 w - - 0 1 illegal: No possible last move, all moves rejected
1Rn1q2k/1Q3pR1/2P4K/4bBP1/2R1pPbN/pB2Nrn1/P1Qr1B2/1b1n1N2 w - - 0 1 legal: proof: e4 d5 exd5 c5 h4 g5 hxg5 Bd7 b4 Bf5 bxc5 Bc8 Ke2 h5 Kf3 a5 Kf4 b5 g4 a4 c4 e6 d4 b4 c6 h4 c5 h3 g6 h2 d6 b3 d7+ Ke7 Kg5 e5 f4 b2 g7 e4 c7 a3 c6 Nf6 g8N+ Ke6 d5+ Kd6 Nd2 b1N Ne7 Nh5 Bc4 Ra6 Ngf3 Nc3 Nf1 Ra8 Rg1 h1B Nh4 Bg7 Bb3 Bg2 Be3 Ng3 Bf2 Qe8 d8Q+ Nd7 Rc1 Be5 Qc2 Rg8+ Kh6 Nd1 g5 Rb8 Rh1 Bf3 Rh2 Ba6 c8B Bg4 Qb6 Bd3 Qb7 Nb6 Bf5 Nc8 Qb1 Nh5 Rc4 Ng3 Qc2 Rf8 Ng2 Rg8 Ng6 Rf8 N6h4 Rg8 Qa6 Ke7 d6+ Kf8 d7 Rb4 d8R Rb8 Qd2 Bb1 Qc2 Rb7 Nge3 Rb6 Ba4 Rb3 Qb7 Rd3 Bb3 Rg6+ Kh7 Rgd6 Rh1 Rd7 Kh6 Kg8 Rh2 Kh8 Rh1 Nb6 Rb8 Nc8 Ng6+ Kg8 Nd5 Rf3 Nde3 Ba1 Rh5 Be5 Nh4 Kf8 Kh7 Rd6 Rh6 Rd2 Rg6 Na7 Kh6 Nc8 Re6 Kg8 Rg6+ Kh8 Rg7 Qe7 Qd3 Qf8 Qc2 Qe8
K1b4n/1BpQ2N1/pQ1P1Qp1/bPb5/4rq2/k1PRr3/3Rn1PN/2NnB2R w - - 0 1 illegal: No proof kernel
2r1b3/1NQ1nB1k/QK1n3B/1pRB3N/RPNpPb2/q4q1p/P2r3P/1n2Q3 w - - 0 1 illegal: No proof kernel
2N5/1Rn1q1pK/R1Nbb1r1/Q1pQ1qnB/2Pp1PNR/P2QB3/k2P4/2r4r w - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 bxa5 Nh6 g4 Ng8 gxh5 Rh7 Bd3 Rh6 Bf1 Rh8 Ke2 Kf7 Ke3 d5 Kf4 c5 Kg5 b5 f4 e5+ f6 Ke6 Kg6 b4 h4 e4 c4 b3 h6 b2 a6 e3 f7 e2 h5 e1Q a7 Rh7 Qb3 Qd6 Na3 b1R Nb5 Qc6 Bb2 Qf2 Be2 Qe8 Nh3 Re1 Qd3 Qd4 Nd6 Bd7 Nf2 Na6 Nc8 Rd1 Rh4 Qe5 Bd4 Rh8 h7 Rg1+ Ng4 Rb1 h6 Rc1 Be3 d4 a3 Nf6 Rb1 Bd6 Rb7 Qe7 f8Q Ne4 Qd8 Qd5 Qa5 Nc7 Bf3 Rb8 a8R Ng5 Ra6 Qe5 Rba7 Rbb1 Rb7 Rh1 Be2 Rbc1 Bf3 Rf8 h8N Rf7 h7 Qf5+ Kh5 Rf8 Ng6 Rf6 N6e5 Rg6 h8Q Nb5 Nh6 Nc7 Nc6 Kf6 Qg8 Be6 Qf1 Qc2 Ng4+ Kf5 Bd1 Ke4 Qh3 Kd3 Qd8 Be5 Qd5 Bd6 Bf3 Qb2 Qf1+ Kc2 Bd1+ Kb1 Qd3+ Ka2 Be2 Rf6 Bf3 Rf7 Kg6 Qc2 Nh6 Rf5 Bh5 Re5 Ng4 Re4 Bg1 Re3 Bf2 Rg3 Be3 Rb1 Q3f5 Ne4 Kh7 Rbc1 Nf6 Rg6 Ng4 Ng5+ Kh8 Nf7+ Kg8 Qe4 Kh7 Qe5 Qfe4 Qf5 Qd3 Ng5+
4R1b1/2pRRq2/n3p3/Q1PrnQNB/Kp2P3/4b1QN/k1PB3P/q1r1B2n w - - 0 1 illegal: No proof kernel
2N2bR1/1ppNQbPp/1Pq4P/P4Qbn/BKQr3k/1BB1rbR1/n7/2R5 w - - 0 1 illegal: No possible last move
B2qbQ1K/n2p4/r1B2pbN/2b3rb/NP1Q1Pp1/k2P4/5NP1/BR1QRq2 w - - 0 1 illegal: Other
2q2N2/kB3npB/1pP1P1PQ/1Qp1NRb1/5Rn1/2Pb4/3rnBpr/1K1N3R w - - 0 1 illegal: Other
r2R1n1Q/1N3kp1/1br3pr/Qp4Pp/b2Q4/R1B1PP2/1P2KR2/1n1qNN1B w - - 0 1 illegal: Other
1q2k2b/Kp1p2PQ/Pn4rR/N1R5/bq1P1pr1/1QR1p2B/B4P2/1nN1B2N w - - 0 1 illegal: No proof kernel forced: wxLB
1Q2QnNN/1p4p1/n1p1rQbp/1BK2Rb1/2B4k/2B1rR1N/PP3rPP/2b5 w - - 0 1 illegal: No proof kernel
r1bKb3/R3rqnB/1NQ1qB2/PNn2PB1/2B3k1/P6N/1PB2R1r/8 w - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 hxg5 d5 c4 Nc6 cxd5 Nb8 Bc4 b5 Bb3 a5 Bc4 b4 Be2 Bg7 Bf1 Bc3 dxc3 c4 cxb4 c3 bxa5 c2 Kd2 Kd7 Kd3 e5 Kc4 h5 Kc5 h4 f4 e4 g4 e3 a3 e2 f6 e1R d6 Ke6 d7 h3 f5+ Ke5 f7 h2 f8N Rh4 g6 Rh6 g7 Ne7 g8B Ra7 g5 Re6 g6 Ke4 g7 Nd5 Bd3+ Ke5 Qf3 Rb7 Bg5 c1Q+ Nc3 Ra7 Nh3 Ra8 Bc2 Re7 Nb5 Na6+ Kc6 Qe8 Bh7 Qe3 g8B Nf4 Bc4 Nc5 Kc7 Re2 Qc6 Nh5 Raf1 Qf7 Kd8 Ng7 Rf2 Qb3 Rd1 h1B Rd6 Bf3 Rf6 Qe6 Rf7 Bh5 Rg2 Qd6 B4d3 Re6 Re7 Qbd5 Bc4 Be8 Rf7 Re1 Rh2 Rh1 Rf2 Qe7+ Kc7 Qf6 d8B Rh2 Rd7 Qf7 Bde7 Qh1 Kd8 Qe1 Ra7 Qe4 Ba4 Qd5+ Nd7+ Ke4 Bef6 Re7 Rg2 Kf3 Rf2+ Kg4 Bc2 Qe5 Nb6 Qee6
r2B1R1N/3R1KPq/Q3Pb1P/n7/Nr2bNp1/kB5n/4BnP1/1B5B w - - 0 1 illegal: Other
1r4B1/K1nP2b1/1P3NqP/B1k3BB/R1P1q3/R5r1/2b2RQn/NBb4n w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 a4 Ba6 axb5 Bc8 gxh5 c5 c3 d5 b3 d4 cxd4 c4 bxc4 Qg5 Nh3 Qf6 Ng1 Qd8 Kf2 Kd7 Ke3 a5 h4 g5 e6+ Kd6 h6 f5 h5 a4 d5 f4+ Kd4 f3 e4 f2 h7 g4 h6 a3 e5+ Ke7 Kc5 g3 d4 a2 d6+ Ke8 d5 g2 e7 Kd7 Rh3 Ra3 Qd2 Nf6 Bd3 f1N Ne2 g1B+ Nd4 Ng8 Nc3 Ra8 Ne4 Ra3 Bb1 Bg7 Qg2 Rc3 Bg5 Bh2 Nb3 Bb7 e8B+ Kc8 d7+ Kc7 e6 Qf6 e7 Bf4 Bf7 Qg6 e8B Nf6 Bg8 Ng4 Nf6 Ngh2 d8R Qe4 Bh5 Ng3 Rf8 Nh1 Rg3 Ba8 d6+ Kb7 b6 Bc1 d7 Na6+ Kb5 Nc7+ Ka5 Kc6 Rh3 Nb5 Ka6 Nc7+ Ka7 Bb7 Rf3 Rd3 Rf2 Rg3 Re8 Ba8 Re5 Kd6 Ra5 Qg6 Ra4 Be4 Bd5 Rd8 h8B Rb8 Bg8 Bc2 Nh7 Bf8 Bc3 Bg7 Ba5 Qe4 Nf6 Kc6 Nd2 Kc5 Nb3+ Kd6 Be3 Qg6 Bg5 Bf5 Nd4 Kc5 Bd3 Be4 Nc2 Bf5 Rb1 a1Q Rb3 Qc3 Na1 Qe5 Bb1 Bc2 Rba3 Qee4
1Q5r/2PN2R1/3n4/2qRn1B1/3PRRq1/5Pk1/RbBP1NBq/3K1qrq w - - 0 1 illegal: No possible last move
1RR1n2q/kq2P1r1/3BB3/2P2N1R/p1K4N/Pb2N2b/1q1qRQP1/b1R5 w - - 0 1 legal: proof: c4 g5 d4 c5 h4 d5 hxg5 Bf5 cxd5 c4 e4 c3 d6 Bc8 d5 Bg7 bxc3 Kf8 d7 Bh6 c4 Kg7 c5 Kg6 Kd2 Bg7 Ke1 Bf8 e5 a5 f3 b5 f4 Ra6 Qf3 Rd6 Qd1 Nc6 exd6 e5 Qd3+ e4 Qd1 Ne5 fxe5 Qc7 Qg4 Qb6 Qd1 Qd8 Ke2 Kf5 a3 h5 g6 a4 g7 h4 e6 Ke5 e7 f5 Ra2 e3 Kd3 b4 Qf3 e2 Be3 e1Q Rd2 b3 Kc4 h3 Ra2 b2 Nc3 b1Q Nd1 h2 Re2 f4 Qf2 Qc7 d8R f3 d7 Qd2 d6 Nf6 g8N Rh7 Nh6 Rg7 Nf5 Qcb7 Re8 Q1b2 d8R Bd7 Rb8 Ke4 Rec8 Ne8 Qg3 f2 Nf3 Rh7 N3h4 Bg7 Rg1 h1Q Qf3+ Ke5 Qg3+ Ke6 Bf4+ Be5 Nde3 Rg7 Rc7 Bc8 d7 Qh2 d8R Bd4 Ng6 Qh8 Rd5 Bf6 Bd6 Be5 Rc6 Kd7 Ngh4 Bc3 Ra6 Be5 Raa8 Kc6 Nh6 Bf6 Rh5 Bh3 N6f5 Be5 Re1 Bc3 Be2 f1B Qf2 Bf6 Bd3 Be2 Rh1 Bd1 Re2 Q2b6 Bb1 Ba1 Ba2 Qbb2 Rhe1 Qc7 Rc8 Kb7 Rab8+ Ka7 Bb3 Bc2 Rc1 Bd1 Bc2 Qd7 Be4 Qc6 Bd5 Qcb7 Be6 Bb3#
1N1Nn2Q/2B4B/PP2Brr1/B2r2P1/1r6/2NPpRBK/bb2b3/R2b2k1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 exf5 g5 hxg5 Bh6 c4 Bg7 cxd5 Bf8 Rh4 a5 Rh2 Qd7 Rh1 b4 b3 Qb5 axb5 a4 Ba3 Na6 Bc1 a3 Rh6 Nc5 Rh1 Na4 bxa4 Bg7 Nh3 Bh6 Ng1 Bf8 g4 Kf7 f4 e5 Kf2 h5 Kg2 c5 d6 e4 b6 b3 f6 Kg6 a5 a2 d3 b2 f7 e3 d7 h4 d8N c4 a6 c3 Qe1 c2 Ne2 Bg7 f8B Nf6 Bd6 Rh6 Bd2 c1R Rh3 Rc5 Rf3 Ne8 Nbc3 b1B Kh3 Rd5 Bc7 Be6 Bg2 Bc2 Qh1 Bd1 Nd4 Bg8 N4c6 Bf6 Rb1 a1R Nb8 Ra4 Ra1 Rb4 Be1 Bd4 Bg3 Be5 Nb1 Bb2 Nc3 Rd7 Bf1 Ba2 Bg2 Rd5 f5+ Kg7 g6 Kf6 g7 Kg5 g8B Rg6 f6 Ra7 Bcd6 Rf7 Bh7 Rf8 f7 Be2 Kh2 h3 Bc7 Bd1 Bgf4+ Kh4 g5 Be2 Bg3+ Kg4 Kg1 Bd1 Kf1 h2 Bh3+ Kh5 Kg2 Be2 Qf1 h1B+ Kh2 Bg2 Be6 Bh3 Qh1 Bg4 Rf2 Bgf3 Kh3 Bd1 Qh2 Bfe2 Rf1 Rf6 Rf3 Rg8 f8B Rg7 Bgd6 Rgg6 Qe5 Rf5 Qh8 Rff6 Kg2 Kh4 Bh2 Rbd4 Bb4 Rc4 Ba5 Rcd4 Rf5 Rb4 Bhf4 Kg4 Kh2 Kf3 Kh3 Kf2 Bg3+ Kg1 Rf2 Rb3 Rf3 Rb4
b2R4/1k1BrP2/1P3P1B/1nK3rp/1r2NQP1/1b1qbpN1/B2B4/RN1B4 w - - 0 1 illegal: No possible last move
2r1n3/RrNr1pn1/4B2B/BP1nP1p1/B2R1rP1/5N2/B1RQ2KP/k6b w - - 0 1 illegal: No possible last move
5b2/BPR2P2/1BKR3p/4Q1r1/pBP2BB1/pb1q1N2/P1k1q2N/2r2r1R w - - 0 1 illegal: Other
2n1NN1n/3R3N/2Q1R3/NP2q1nb/K1Pb2rb/2Nk1P1P/4R3/2r1bBBb w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 c4 Ke4 b3 e5 h3 d5 h6 a5+ Ka4 g5 f6 d4 b6 g4 b4 g3 c6 g2 h7 d3 b7 d2 f7 Qd5 b5 Nh6 c7 Rg8 h8N Nc6 b8R Bb7 c8N Rg4 Rh2 Be7 f8N Na7 Ne6 Bh4 Ne2 g1N Nbc3+ Kd3 Nf7 e4 Nfg5 e3 Qb3 d1B Nh7 Nf3 Nef8 Ng5 Nd4+ e2 Be3 Nhf7 Nd6 Nh8 Rd8 Qe5 Rd7 Nc8 Ne8 Bh1 Rc1 Ra6 Rc2 Rg6 Nc6+ Rd6 Qb4 Rdd4 Qc5 Rg1 Ka3 a4 Na5 Rg4 Kb4 a3 Ka4 a2 Qc6 a1B Rg2 Rd6 Rg3 Rdd4 Rf3 Rd6 Rf6 Rd5 Re6 Bb2 Bg2 e1B Bb6 Bf3 Re2 Rdd4 Bf1 Rg1 Nd5 Bh5 f3 Rdg4 Bf2 Bd4 Nc3 Bd2 Bg2 Rd1 Bg1 Bde1 Bf1 Rc1
n1n1q2B/1N3R2/Br1N3P/1P1n4/R1RKPr2/Q1NPqk1b/3R3R/1rn3b1 w - - 0 1 illegal: No possible last move
4k3/1Br1Brq1/1Kbb1nP1/3N1q1P/1rP3Rb/1PN3r1/5R1B/1RR1R1Qn w - - 0 1 illegal: No proof kernel
2R1rNBk/Q1RN2nb/2Pr1PK1/P1Pq1B2/2b1q3/b2n4/2B2B2/q3N1Bb w - - 0 1 illegal: No possible last move
R1n2nr1/Qb1P1k2/R5br/3P1q1B/q2N1P2/bR1n1KBP/5B1N/b2B3B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 c5 a4 e5 d4 g5 d6 b5 f6 g4 h6 e4 f7+ Kd7 h3 Ke6 a6 b4 d7 g3 h7 g2 a5 b3 a7 c4 a6 e3 Nf3 g1B Nh2 c3 Na3 b2 Qa4 b1B Nb5 c2 Kf3 e2 Be3 e1Q Be2 c1N Bd1 Bd6 f8B Ba3 Bd6 Qg5 Bg3 Nc6 Ra2 Rb8 a8B Kf7 a7 Nce7 Bc6 Nf6 a8B Qh4 Qa7 Qa5 Be4 Rg8 h8R Rb6 Bd3 Ba6 B3e2 Nh7 Rb2 Bc2 Rb3 Nc8 Be4 Nf8 d5 Qa4 Nd4 Qg5 Rh6 Bb7 Rc6 Rb5 Ra6 Qf4+ Kg2 Qf5 f4 Ra5 Bf2 Nd3 Bg4 Rb5 Kf3 Rb6 Bh5+ Rbg6 Be1 Be3 Bef2 Bd2 Re1 Bc3 Re2 Bb1 Ra2 Bc2 Ke2 Bcb2 Bh1 Ba1 Kf3 Ba8 Rb8 Bb7 Ra8 Bb1 Rb2 Bc2 Rb3 Bb1 Bg4 Rh6 Bh5+ Qg6 Bg2 Nc1 Qc5 Bf5 Qa7 Nd3 Bg4 Qe6 Bh5+ Bg6 Bh1 Qf5
1k5K/1PqnrN1b/r3N3/BP1Nq1n1/r6q/1B3P2/1RNqP2N/B1QRb3 w - - 0 1 illegal: No proof kernel
1n5N/P2BK3/q1Pb3k/1bb5/N2BPn2/N2PbRr1/1rR3N1/qnQN1R2 w - - 0 1 illegal: No possible last move
2Rb1R2/b1rP1bQ1/PN5B/bk3PP1/6nN/2n1b3/rN2b1Rq/RK1B2R1 w - - 0 1 illegal: No proof kernel
1N4nN/1n1p3b/3bP1Nk/3nBPbr/Pr4BN/1q2Q3/P3B1R1/K1rR2N1 w - - 0 1 illegal: No proof kernel
B1nr2R1/4Rq2/1BQ1N3/4P2B/1p1R4/1q2PBPr/1kbnK1Pb/1B2qN1b w - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 g5 f4 c5 dxc5 g4 fxe5 g3 hxg3 Bh6 Rh5 Bg7 Rh1 Bf8 c4 Ke7 a4 Ke6 a6 b5 a5 d5 a7 f5 c6 h5 a6 f4 c5 f3 c7 f2+ Kd2 h4 c6 h3 Na3 b4 Kd3 d4 Be3 Kd5 Nb1 h2 Qc1 Qf6 Nf3 Bc5 Nbd2 Rh3 Ng5 Qf7 Ne6 Nd7 Qc3 Bb6 Rd1 Ndf6 Qc1 Rb8 a8B Ne4 a7 Ne7 Qc3 Bb7 c8B Bc5 Bd7 Rd8 c7 Nc8 Ba4 Bc6 Bc2 Bb7 Bb1 Bc6 Rg1 h1B Bb7 Bb6 a8B Ba7 Nf3 Nd2 Nh2 Nd6 c8R Bc5 Rc7 Nc8 Re7 Bb6 Kc2 d3+ Kc1 Ba7 Bb6 Ke4 Qc2 Kd5 Qa4 Kc4 Qa6+ Bb5 Bf3 Kb3 Qb7 Ba4 Qc6 Nc4 Rd2 Kc3 Ra2 Bc2 Ra5 Kb3 Rd5 Nd2 Rd4 Ka3 Rg4 Kb3 Rg8 Ne4 Bh5 Ned6 Kd2 Kb2 Ba5 Bb6 Nc5 Ne4+ Ke3 Qb3 Kf3 Ba7 Ne6 Bd4 Bb6 d2+ Kg4 d1Q Kf4 Bc3 Kf3 Qc1 e3 Be1 Be2 f1Q+ Kg4 Bf2 Kf3 Qfe1 Rf1 Bg1 Rf2 Qed1 Nf1 Qe1 Bd1 Bh2 Rd2 Qf2+ Kg4 Qc4 Rd4 Qf7 Be2 Qb3 Bd1 Qe8 Kf3 Nd2+ Kf2 Qg6 Bdf3 Qf7 Ke2 Qe1+
1q5R/2b4P/1rP1rR2/1pBRq2q/5PR1/2QB1N2/2bRBPnr/Nkn2K2 w - - 0 1 legal: proof: g4 c5 d4 a5 dxc5 h5 gxh5 f5 b4 f4 bxa5 f3 exf3 Rh6 f4 Rh8 h4 Kf7 a4 Ke6 c4 Kf5 a6 Ke4 c6 b5 a7 d5 h6 e5 c7 g5 a5 g4 h5 g3 c5 d4 c6 g2 h7 d3 a6 d2+ Ke2 Nf6 h6 Nbd7 Rh4 Nc5 Nf3 g1Q Qe1 Qg7 Na3 Rb8 a8R Nd3 a7 Nd5 Rg4 Bf5 c8B Ne3 Rb1 Rb6 Rb2 Bd6 Nc2 Bc7 Na1 Ng2 Ra2 Qgg5 Ba3 d1R Rd2 Qh5 Bd7 Qb8 Bc5 Re8 h8R Re6 h7 Rb1 Rh4 Rb3 Rg4 Nc1+ Kd1+ Re3 Be2 Rb3 Rf8 Bg6 Rf6 Bf5 Nh4 Rh3 Nf3 Rh2 Rd5 Qb7 Rh8 Qb8 a8R Bg6 Ra2 Bf5 Nd4 Bg6 Bf3+ Kd3 Rd2+ Kc3 Be2 e4 Be8 e3 Nf3 Bb1 Bg6 Bd3 Nc2 Kb2 Na1+ Kb1 Rc2 Be4 Qc3 Nh4 Ke1 Ng2+ Kf1 Bf5 Rcd2 Bc2 Bc4 e2+ Kg1 e1Q+ Bf1 Re3 Bd3 Re6 Be2 Rh3 Bd3 Qee5 Bfe2 Rh4 Kf1 Rh2
1R1B2K1/NN1RP1R1/kb6/B2q2P1/3bP2p/B1nb1rP1/n4qr1/q1QBB3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 Kc7 b4 Kb7 d4 h5 e4 f5 e6 a5 Ke5 a4 b6 h4 b5 a3 d6 f4 d5 a2 d7 f3 d6 f2 Nc3 c4 Nh3 Ra3 Be2 f1Q Nf2 Ra7 Nd3 Nh6 Nc5+ Ka8 Ba3 Rb7 Qc1 Na6 Bd1 Nb4 e7 Ng4+ Ke6 Rc7 b7+ Ka7 b8R Ne3 Nb7 Qf2 b6+ Ka6 Nb5 c3 Na7 c2 Rf1 Bg7 g3 Bf6 Kf7 Ned5 Rb1 a1B Rb3 Rc5 Rd3 Na2 Bb4 Rc4 Be1 Bad4 Rd2 Ndc3 Rd3 Qc7 d8B Qc5 d7 Rb4 Bc7 Rb2 d8B Rh7+ Kf8 Rf7+ Kg8 Qd5 Bd6 Bd7 Ba3 Bc5 Rd4 Bb5 Rd2 Bfd4 Rd3 Qh2 Rf6 Qe2 Rg6 Qf2 Rg7 Bc4 Qf4 c1Q Qd2 Qa1 Qc1 Qe5 Rd2 Bf1 Rd3 Rf3 Rd2 Be3 Rd7 Bcd4 Rc8 Qc2 Na5 Bc5 b7 Bed4 b8B Bd3 Bbc7 Qd6 Nb7 Qd5+ Kh7 Qh2 Ba5 Bb6 Rb8 Qg1 Kh8 Rg2 Kh7 Qf2 Kh8 Qb5 Kg8 Qd5+
3NB3/1nQ1PP2/2r1K3/1r2R2b/1pB1Nq2/P1n1kbBR/BP1nNq2/3r1B2 w - - 0 1 illegal: No proof kernel
1n2N2R/q1P1rB1N/3rrq1b/2PNQ1p1/4N3/1RN1P2b/PB4n1/b3kBK1 w - - 0 1 illegal: No proof kernel
2R3nk/2B1NbN1/8/n4PPq/nPr2R2/2p2nP1/K1NR2Q1/1RbR1Brn w - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 f4 Kg7 d4 a5 Kd2 h5 Kc2 e5 Kb2 c5 d6 h4 b6 h3 d7 a4 f6+ Kh7 g3 h2 b7 c4 f7 e4 d5 c3+ Ka2 a3 d6 e3 Qd2 e2 Nh3 e1N Qg2 Na6 b8N Nf3 Nc6 Nc5 Ne7 Qe8 d8R Na4 d7 Bg7 f8R Bd4 f5 Qh5 Bf4 Be3 Bc7 Bc1 Nf4 Ba6 Rde8 Rc8 d8R Bb7 Rg1 h1N Ne6 Bc6 Ng7 Bd5+ Bc4 Bf7 Rgd1 Nf6 R8d2 Ng8 Kb3 a2 Na3 Rb8 Red8 Rc8 Rb1 a1N+ Ka2 Nb3 R8d4 Na5 Re8 Qh3 Rf4 Qh5 Bb8 Rc5 Nc2 Rc7 Rc8 Rc6 Ne6 Rc5 Bf1 Rc4 Nf8+ Kg7 Bc7 Rh7 Ne6+ Kh8 Ng7 Rh6 Ra1 Re6 Rb1 Re1 Bd3 Rg1 Be2 Qh2 Bf1 Qh5
6k1/1Pq4b/b3Nbn1/1B1nb1BR/1P6/pN1KrPb1/NB1P3Q/RrB3B1 w - - 0 1 illegal: No proof kernel
1rNRnkB1/1bb3nR/6rq/1Q2KP2/P1rp1PP1/3R2R1/1rBN3R/3bB3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 f4 b5 Kf2 h5 Ke3 e5 Ke4 b4 g4 b3 a4 d6 c4 h4 g6 h3 a6 h2 g7 b2 a7 Rh3 c6 Rd3 c7 Rg3 c5 Qg5 c6 Na6 Nc3 b1R Nd5 Rab8 Qe2 R1b2 Nb6 Rc3 Bd2 Nc5+ Kd5 e4 Rd1 e3 Qb5 e2 Nf3 e1R Bd3 Qh5 Bc2 Re6 Be1 Rg6 Kd4 d5 Ke5 Nf6 g8B Qh7 a8R d4 Ra7 Ne6 Rd2 Bc5 Rg2 Qh8 Rg3 Qh6 Nd2 Kf8 Rb7 Ba3 Ra7 Ba6 c8R+ Ne8 Rh7 Ng7 c7 Bb7 Rd8 Rcc6 c8R Bd6+ Ke4 Rc3+ Rc6 Be5 Nc8 Bc7 Kd5 Ba6 Re6 Rc4 Ree3 Bb7+ Qc6 Ba5 Ke5 Bb6 Qb5 Bc7+ Rd6 Bf3 Rc3 Bd1 Rcd3 Bb6 Rd8 Ba5 Rf1 h1B Rf2 Bb7 Rh2 Bc7+
1nn1n2k/2r1B1R1/1Q2N3/1KP2n1b/PPq3BB/b1r3Rb/BP1pR3/2NB4 w - - 0 1 illegal: No proof kernel
nBN3Nb/3q4/B3rB2/PbP1b1r1/K2b1BRn/P2r2Pp/kN4R1/3B2Q1 w - - 0 1 illegal: No possible last move
R3R1n1/3q1N1K/1Bk1b1P1/P4P1b/2B2RPr/QN1R1p2/4nb1N/rn1b2R1 w - - 0 1 illegal: No proof kernel
rB2R3/N1K4N/2P1q2p/NbRbPP1Q/3b4/rB1rP3/1n1bNNB1/k5n1 w - - 0 1 illegal: No proof kernel
7R/K5N1/1PNkrR1B/br5b/Pb3qBQ/N2N1p2/nPbr2P1/1NR1n3 w - - 0 1 illegal: No proof kernel
k2Bb1N1/2KQrP1p/4NR2/3rR1N1/nb6/1NP5/r1nP1P2/BBbN1b1q w - - 0 1 illegal: No proof kernel
Q1n3B1/Bpn3N1/kbP3Rn/3RBP2/b5r1/1PNP3B/K5q1/3BrbbN w - - 0 1 illegal: No proof kernel
B3n1R1/1rqb3B/1N2knq1/2b2N2/pPK3N1/1Q2NPr1/R1P3PB/1N1qq3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 h5 b4 d5 f6 a5 g6+ Ke6 f3 d4 c6 h4 f7 h3 c7 a4 b6 h2 b7 Kd5 g7 e5 Ra2 Qh4 Ne2 Qd8 Ng3 Bh3 c8B Qc7 Bf4 Qb6 Nf5 Na6 b8N Ra7 Nd7 Bc5 f8N Nf6 g8N Nc7 Nh7 Nce8 Ngh6 Rg8 Ne3+ Ke6 Nhf5 e4+ Kc4 d3 Bb7 d2 Bd3 Qc7 Ba8 Rg3 Nb6 Rb7 Qc1 d1Q Qb2 Bg4 Qb3 Bh3 Re1 h1Q Be5 Bg4 Bd6 Qh5 Rh1 Nd7 Nf6 Qg6 Rh8 Bh3 Nfg4 Ndf6 Ned5 e3 Rg8 e2 Nde3 e1Q Ne7 Qg5 Bh7 Qh5 N7f5 Qg6 Ngh6 Rg5 Bh2 Rg3 Nd6 Bf5 Nhg4 Be4 Ndf5 Bc6 Qd3 Bd7 Qa3 Rh3 Qb3 Rg3
nK3n1k/2PRq1r1/nPRq4/1b2R1P1/Rn3NbN/1pB5/1P1QRB2/2r2B2 w - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 f5 exf5 b5 d4 b4 dxc5 b3 a3 Bg7 Bf4 Bc3+ Bd2 Bb4 axb4 Kf7 Bc1 Ke8 Kd2 Kf8 Kc3 Kg7 Kd4 h5 Kd5 a5 f4 e5 Kd6 h4 c4 h3 g4 a4 b5 e4 b6 h2 c6 e3 c5 a3 f6+ Kh7 f7 e2 f8R e1Q g6+ Kg7 f5 a2 c7 Ba6 c8R Bb5 g5 Rh6 c6 Rh7 f6+ Kh8 f7 Na6 Bd2 Nc7 Nc3 Rg7 Nce2 Ra4 Bb4 Na8 Bc3 Rc4 Qd2 Qg3+ Nf4 Qe7+ Kd5 d6 c7 Rc6 Rfd8 Rc4 Re1 a1N f8B Nc2 Re2 Rc6 Nf3 Nb4+ Kd4 d5 Nh4 Nf6 Rd7 Nh7 Re8 Rc5 Rg1 h1N Rgg2 Qf6+ R8e5 Nf2 Rh2 Rc6 Bc5 Qe7 R2e4 Nf8 Rg2 Nfd3 Rge2 Rf7 g7+ Kh7 Bd6 Nc5 g8R Qh2 Rg6 Kh8 Rf6 Rg7 Rfe6 Nb7 Bc5 Qg3 Rf5 Qh2 Ke5 d4 Rf6 d3 Bf2 Nc5 Rf5 Nba6 Ra4 Nb4 Kd4 Qg3 Rfe5 Qh2 Qe1 d2 Qd1 Nbd3 Kd5 Qg3 Qc2 d1B Qd2 Qh2 R2e3 Bg4 Re2 Ne4 Rf6 Rc4 Rc6 Nec5 Bcd4 Rc1 Bc3 Qg3 Rf5 Qee3 Re5 Nb4+ Kd6 Rg6+ Ke7 Rg7+ Kd8 Qh2 Kc8 Qhg3 Rf5 Qe7 Rfe5 Qd3 Kb8 Qd5 Re1 Qdd6 R1e2 Nca6+
3B4/p2P1Rn1/1P2R2n/qr2KN1B/q2P1B1Q/n4bBn/4PrN1/1k2bB1R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 Ke4 f5+ Kf4 c4 b4 c3 d4 c2 h4 Qa5 d6+ Ke6 d7 Kd5 h6 Kc4 h7 Kb3 h5 Nc6 h6 Nd8 b6 Rb8 b5 Bb7 e6 g5+ Ke5 g4 e7 g3 e8B f4 Nf3 g2 Nh4 g1N Na3 f3 Ng2 f2 Bf4 Kb2 Qe1 c1Q Nc2 Bb4 Nce3 Qc6 Nf5 Ne6 Bh5 Nh3 Ra4 Ba8 b7 Ng7 Bg3 Rf8 b8B Qc2 Ra1 Bd5 b6 Qca4 Rc1 Bd2 Rc6 Rf7 Re6 Kc2 Qa1 Be1 Qa3 Rf8 Qe7 Kb1 Qh4 Rf6 Nd6 Rf3 Nf5 Rb3 Bd6 Rb5 Bc7 Nf6 Bf4 Rf8 h8B Ng8 h7 Nh6 Bb8 Ne8 Bf6 Ng7 h8R Rf7 Nge3 Rf8 Bd8 Rf7 Bg2 f1N Rh7 Nd2 Bf1 Rf6 Ng2 Rf8 Ne7 Rf7 Bg3 Rf2 Nf5 Nc4+ Kf6 Bb4 Bbf4 Na3 Ke5 Bd2 Re8 Be1 Re6 Ne8 Rhe7 Ng7 Rf7 Bf3+
K5r1/4nQRB/PP2rnP1/N4RB1/B4np1/2qb2PN/k1B3B1/nN1n2r1 w - - 0 1 illegal: No proof kernel
rrB5/1Q1B2P1/BB1n1K2/B2Pn1Nn/r2nR1pn/2RPN1PR/q1bk4/8 w - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 fxe5 d5 axb5 g4 c4 Be7 cxd5 Bg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 Kf2 Kd7 Ke3 a5 Ke4 f5+ Kf4 c5 e4 h5 b4 c4 e6+ Kd6 b6 h4 b7 a4 g6 a3 g7 c3 e7 c2 Kg5 Ke5 b5 Kd4 g3 a2 b6 f4 e5 h3 e6 h2 Nh3 f3 Ba6 f2 Na3 f1R Nc4 Nc6 b8R Kd3 b7 Qa5 e8B Nge7 Bd7 Ng6 e7 Nh4 e8B Rf4 Ne3+ Rc4 Re1 h1N Kf6 Nf2 Ng5 Ne5 Be6 Bd7 Rc8 Ba4 b8B Bb3 Rb1 a1N Bc7 Qa2 B8d7 Re8 Ba3 c1N Bb4 Bc2 Bb6 Nab3 B4a5 Nd4 Rb2 Nce2 Qb1 Rg8 Rh1 Rb8 Rb4 Nf4 Rh3 Ke2 d3 Kd2 Ra4+ Rb4 Rc3 Ne4+ Ke7 Nd6 Kf6 Ra8 Bf5 Rgb8 Bdc8 Rb3 Bfd7 Ra3 Rb4 Ra4 Qb3 Nd4f5 Re4 Nd4 Qb5 Neg6 Qc6 Ne5 Qb7 Nh5+
1q6/R1PrNq1P/RbQbbb1k/1P1R1BRp/8/BNb5/5RNP/1Kn3n1 w - - 0 1 legal: proof: e4 c5 a4 h5 g4 a5 d4 f5 exf5 b5 axb5 Qb6 dxc5 Ra6 g5 Qc7 Ke2 Rah6 gxh6 Qb6 Ke1 Qd8 Kd2 Kf7 c4 d5 Kc2 g5 f4 e5 b4 g4 b6 e4 c6 e3 c5 g3 f6 Kg6 f5+ Kg5 c7 d4 b7 a4 h7 a3 c6 a2 f7 g2 b5 Bb4 f8R Kh6 f6 Be6 c8N Bd6 f7 Na6 b8R Ne7 c7 Nc5 Ne2 g1B Nd2 Nb3 Rb7 Nf5 Bh3 Nh4 Rg8 Nf3 Ne7 Qb8 Ba3 Nc1 Nf4 e2 f8R e1B Nb3 Bc3 Ng2 Be3 Ra7 Ng1 Qf3 d3+ Kd1 d2 Kc2 Bed4 Rg5 Bb6 Qc6 Bf6 Rf7 Rd8 Bf5 Rd7 Ra6 Nf3 Re1 Ng1 Re5 d1Q+ Kb2 Qf1 Kc2 Bb4 Rd5 Bfc3 Bg4 Bd6 Rf2 Bf6 Bf5 Bc3 Rb1 a1B Rb2 Bg8 Kb1 Be6 Rbe2 Bab2 Re4 Bf6 Rea4 Bbc3 Ra7 Qc4 R4a6 Qf4 Bd3 Qf5 Be4 Qg6 Bf5 Qf7
B2Bk1rR/3n2r1/1P1bB3/pR3bK1/BQBr1RP1/2P4N/Pn3pb1/4N1q1 w - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 e5 fxe5 b6 c4 b5 cxb5 c4 Rh5 c3 dxc3 Bh6 Rh1 Bf8 Kd2 h5 Ke3 a5 Kf4 f5 g4 d5 b4 h4 e4 d4 b6 d3 b5 h3 b7 d2 g6 h2 g7 Qd3 e6 Rh4 e7 Qd5 e5 Nd7 b8R Ngf6 g8B Nc5 Qb3 d1B Be6 Qd4+ Kg5 f4 Qb4 f3 Bfc4 Bc2 Nd2 Nd5 Nh3 Rh7 b6 f2 Nf3 Bg6 Ne1 Nd3 Rb1 Nb2 Rb7 Qe4 Rd7 Nf6 Rd4 Qc6 Rf4 Nd7 Be3 Rg7 Bc5 Ra7 Bd6 Rb7 Bc7 Rg8 Bd8 Rc7 Rd1 Qe4 Rd5 Qg2 Rb5 Qg1 Bed5 Nb8 Ba8 Bb7 Be6 Bg2 Bc4 Rd7 Be6 Rd4 Bc4 Kd7 e8B+ Kc8 e6 Nd7 Bf7 Bd6 e7 Rg7 e8B Rg8 Bc7 Rg7 Bb8 Kd8 Bfe6 Rg8 Bc7+ Ke7 B8f7 Rg7 Bg8 Ke8 Bd8 Qf1 Rg1 h1R Bb3 Rh2 Rh1 Qg1 Ba4 Qf1 Ng1 Rh8 Nh3 Qg1 Bc4 Qh2 Bge6 Rhg8 Ng1 Qg3 Rh8 Qh2 Nh3 Qh1 Bed5 Qg1 Be6 Bf5+
n3NQ2/2P4b/2kbrN2/6nr/pb1qP3/1N1p1nP1/BPNRRK2/3N2BB w - - 0 1 illegal: No proof kernel
3N1K1r/PPBB3r/2B1RBBP/3q4/2pP4/1n1rpk2/1N4n1/1RQ1bNnb w - - 0 1 illegal: No possible last move
NK2bB1q/7B/2PrB3/P1P1N1n1/pkr1n3/qr2B1p1/2PRR2B/2bQ3N w - - 0 1 illegal: No proof kernel
2r1B3/N2rBB1R/np1q1b1P/2BbR1P1/nK5P/1p3n1N/q3P3/2BQN2k w - - 0 1 illegal: Other
R2BN1N1/PBQP4/2b5/b2PN1PN/2n4p/6rN/qn1k1pKB/n2qr1R1 w - - 0 1 illegal: No proof kernel
2Nn1Bkr/3Bb3/1Q2P1BB/1R3N1P/2rR1p1p/1P1b4/P3bbqN/1n1K1B2 w - - 0 1 illegal: No possible last move
Bb1B1rq1/1NB4R/P1Rr1n1p/NPN4P/P2k3b/n1r1p3/5N1K/2r2QN1 w - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 d5 exd5 b5 c4 b4 f4 Bd7 fxg5 Bb5 cxb5 Ra7 Kf2 Ra6 Ke1 Ra8 Kf2 Kd7 Kg3 Kd6 a4 Ke5 h4 c5 d4+ Ke4 a6 e5 g6 f5 d6 b3 g7 c4 d7 c3 d5 c2 d6 b2 Na3 b1R Bf4 c1B Nc4 Bd2 Na5 Qf6 d8N Nc6 d7 Qe6 Kh3 Kd5 g4 e4 g5 e3 g6 Kd4 Bg2 Rb3 Rc1 Nf6 g8N Nb4 g7 Bd6 Nh6 Rf8 Ng4 Nc2 Kg3 Ra7 Ba8 Na3 Rc6 Bb8 Qe1 Rc7 Ndb7 Rc3 d8B Rd7 Bfc7 Rd6 Rh3 f4+ Kh2 f3 g8N f2 Qd1 Nd5 N8f6 f1R Ne4 Qg8 Nec5 Nf6 Qe2 Rb1 Qf1 Be1 h5 h6 Rf3 Ne8 Rf7 Bh4 Rh7 Rbc1 Nf2 Nf6
nb1N1b1N/2R1Pnb1/4P1B1/PB1p1p1B/K5PQ/1r1B3b/1B1k4/R1r1N1q1 w - - 0 1 illegal: No proof kernel
3bR3/1QnpN2k/b1N3R1/1P1rR1BP/N2nR3/1bqPq1K1/6Pp/2R3qB w - - 0 1 illegal: Other
1n2r3/RR1B2r1/P2rbNP1/k1p2P2/2PB4/2RbB1Rp/r1n3QN/b1K2R2 w - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 e5 bxa5 g4 d4 Qf6 dxe5 Qg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 f6 Kd8 Kd2 d5 f4 h5 e4 c5 c4 Kc7 a4 b5 f7 h4 g6 g3 e6 d4 e7 d3 e8R b4 e5 b3 e6 b2 e7 g2 Qe2 Bh6 f8B Bb7 Nf3 g1R Bh3 Bg5 Qg2 Rh5 Ra3 Bd5 Bg7 Bb7 Nh2 Bc6 Nc3 b1B Ne4 Re1 Rf1 Nh6 Rd8 Re3 e8R Bd7 Re7 Bf6 Bf5 Ba1 Rc3 h3 Be6 Re5 f5 Kc6 Rde8 Bc8 Rb7 Ng4 Kd1 d2 Rd8 Nf6 Rdd3 Nd5 Bh8 Re2 Rg3 Re3 Bf6 Nb4 Bg7 Rd5 Bf6 Rd7 Be5 Red3 Nf6+ R3d5 Bd4 Rg7 Bf2 Be4 Bg1 Rd6 Bd4 Nd3 Kc2 d1R Bf4 Re1 Bc1 Re2+ Kd1 Ra2 Bce3 Ne1 Kc1 Bd7 a6 Nc2 a7 Na6 a5 Re8 a8R Nb8 a6 Bc8 Rf7 Kb6 Rb7+ Ka5 Raa7 Bd3 Bd5 Ne1 Bc6 Be6 Bd7 Nc2
2R2r2/1b2B1kp/RrPn1pBr/2Q5/1NP4n/2bRPP2/1RK1bR2/2N1r1N1 w - - 0 1 legal: proof: d4 b5 h4 c5 a4 e5 dxe5 g5 hxg5 Qb6 b4 Qc6 bxc5 b4 Ba3 Ke7 Bc1 Qb5 axb5 Ke8 Kd2 d5 g4 a5 c4 d4 e3 f6 f3 Kf7 e6+ Kg6 b6 b3 e7 a4 e8R a3 c6 a2 b7 b2 Nc3 b1R Nce2 d3 Ba3 Bg7 Rd8 Rc1 Rh2 Be6 Rf2 Bf8 Be7 Kg7 g6 Na6 b8R Nc7 g5 Nh6 Rb2 Bc8 Bh3 Ne8 Bf5 Rb1 Nc1 Rb8 Kc3 d2 Kc2 Rb5 Rd3 Nd6 Qe1 Bb7 Be4 Kg8 g7 Nhf5 Qd1 Kf7 g8N Rb6 Qe1 Nh4 g6+ Ke8 g7 d1B+ Kd2 Be2 Kc2 Kf7 Qb4 Ndf5 Qc5 Nd6 Bd8 Be7 Bf5 Bf8 Ne7 Rg8 Nd5 Be7 Nc7 Rf8 Nd5 Kg8 Nb4 Kf7 Nb3 Re1 Bg6+ Kg8 Rab1 a1R Nc1 Ra5 Ra1 Rab5 Ra6 Ra5 Qd4 Rh5 Qc5 Rh6 Nca2 Nc8 Nc1 Bd6 Be7 Be5 Be4 Kf7 g8R Nd6 Rh8 Kg7 Bg6 Rf7 Re8 Rf8 Rc8 Bc3
1K4kN/1RN1q2p/1q2r1P1/RBQ1BPBP/2N2B2/n2pq3/r2P2B1/nqr5 w - - 0 1 legal: proof: f4 g5 fxg5 b5 b4 Bb7 a4 Bc8 axb5 Bb7 b6 Bc8 b5 Bh6 c3 Bg7 Kf2 f5 Ke1 Bb7 e4 f4 Nh3 Bd4 Ng1 Bc5 Nf3 Bc6 Ng1 Bb4 cxb4 Bd5 Ra2 Be6 Ra1 Bf5 exf5 Kf7 Na3 Kf8 Nb1 Ke8 Ke2 Kf8 Kf3 c5 Ke4 a5 Ke5 d5 g4 d4 h4 c4 h5 c3 b7 e6 b6 d3 b5 f3 g6 c2 g5 f2 g7+ Kf7 g6+ Ke8 Nf3 a4 Ba3 c1R Be7 a3 Ng5 a2 Bg2 f1Q Qc2 Qf2 Nf7 Qh4 Na3 Nf6 g8B Nbd7+ Kd6 e5 b8B e4 b7 e3 b6 e2 Nc4 Ng4 Bg5 Kf8 Kc6 e1Q Be5 Qf6+ Kc7 Qe3 b8N Nc5 b7 Nb3 Na6 Qhf2 b8B Qe7+ Kc8 Ra7 Bef4 Ne5 Nc7 Ra3 Rb1 Na1 Rb7 Ra6 Qc3 Re6 Qa3 Qb6 Qc5 Qe3 Rh4 Nf3 Be5 Ne1 Rd4 Nec2 Rd6 Qb2 Ra6 Na3 Ra5 Qb6 Nb5 Rc3 Bbc7 Rc1 Kb8 N1c2 Bef4 a1Q Bce5 Qb1 Nc7 Na1 Nfd6 Rf6 B8d5 Re6 Nf7 Rg8 Nh8 Rg7 Bde4 Kg8 Bef3 Rc2 Bd5 Ra2 Bc6 Rf7 Bb5 Rff6 Bg3 Rc6 Bh2 Rfe6 Bhf4 Qeg1 Qd4 Rc2 Nd6 Qe3 Qb4 R6c3 Qc5 Ra2 Nc4 Rc1
R1B5/1B1RPk2/Np1B3B/2pnP1Qn/4P2q/r1p1P2K/bbr2B2/3NnN2 w - - 0 1 illegal: Other
R4RQ1/p4PP1/5q2/k2Npp2/b1nNBNPb/Pb1R1rB1/1N2K1n1/6rN w - - 0 1 illegal: No proof kernel
2N3r1/N4NQb/P1B1KbR1/4n2P/1Np2p1B/P4RPr/qB2n2p/2N2qk1 w - - 0 1 illegal: No proof kernel
1RqK1N2/4B3/pP4B1/BR1PQ2p/PPb1r2n/RBB2b2/N3pk1n/5qr1 w - - 0 1 illegal: No proof kernel
rN3nBk/3pQ1N1/3KN3/1R1N2N1/r1P3pP/Bp1nq1Pq/6PR/1B3b1b w - - 0 1 illegal: No proof kernel
QbR1K2R/pPn1R1p1/P1p5/1BN1q1P1/N3BRP1/4n1k1/1rn4r/2BRr3 w - - 1 2 legal: proof: d4 e5 dxe5 b5 c4 f5 cxb5 Nh6 e4 Ng8 exf5 Be7 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Bf8 Ke2 Ke7 Kd3 d5 Kd4 h5 Kc5 c6 b4 d4 f4 h4 a4 h3 a5 h2 b6 d3 e6 d2 b7 Nf6 b5 Rh7 b6 Rh8 a6 Rh6 Nh3 Nh5 f6+ Ke8+ e7 Kd7 f5 Rh8 f7 Qc8 f6 Ke6 Bb5 Ke5 Nf2 Kf4 Kd6 Qe8 Nd3+ Kg3 Nc3 Qc8 Re1 h1R Nc5 Nd7 b8R Rh6 N3a4 Qe8 Rc8 Ne5 b7 Rh2 Qe2 d1N Ke6 Ne3 Qd1 Ra2 Qd8 Rd2 Rd1 Nc2 Ra3+ Kh2 Re3 Nc4 Re4 Rb8 Rf4 N4e3 Rc7 Rf2 Qc8 Qd8 e8B Kg3 Re7 Qa5 Kd7 Qc3 Kd8 Qe5 Bd7 Rh8 Bf5 Rg2 Be4 Rf2 Re6 Bd6+ f8R Rg2 f7 Nf6 Re7 Rhh2 Rh8 Nfd5 Kd7 Nc7 Qg8 Re8 f8R Qc3 Ref7 Re6 Rc8 Qe5 Re7 Re2 Qd8 Re1 Qf8 Reh6 Kd8 Rhe2 Qe8 Rhh2 Rf6 Nd4 Rb8 Ncd5 Rf4 Ra2 Kd7 Ndc2 Qd8 Rb2 Ke8 Nd4 Rc8 Ndc2 Qc7 Na1 Qb8 Nac2 Qa8 Bb8 Kd8 Nc7 Kd7 Ne6 Ke8 Nc7+
R1n1N3/r2B4/2R1B1p1/k1NrR2q/3P2P1/Ppp5/nnP1QK1B/B1r1B1b1 w - - 0 2 illegal: No possible last move, all moves rejected
2N3k1/2N2rb1/2b1P1p1/3Q1BP1/qKRPrR2/2BN2q1/3rPp1p/4nNRN w - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 h4 g6 h5 d3 h6 Na6 cxd3 Nc5 d4 Ne6 d5 Ng7 hxg7 Ba6 Rh4 Bb7 Rh1 Bc8 g4 c5 b4 h5 b6 f5 b7 Kf7 b8N a5 e6+ Ke7 b5 h4 d6+ Kf6 b6 a4 d7 h3 g5+ Ke7 b7 a3 Bb2 c4 Na6 c3 b8N a2 Nc7 c2 Bc3 c1R Nba6 h2 Nb4 f4 Nd3 f3 Nh3 Ra4 Rg1 Nh6 Nhf2 Re4 Nh1 Rh7 Bh3 Rc2 Bf5 Ng4 g8R Qe8 d8N Bb7 Nf7 Bg7 Nd6 Nf2 Rf8 Bc6 Rf6 Qf7 Nc8+ Kf8 Rg4 Rb2 Qb3 Kg8 Qd5 Qd7 Rf4 Qd6 Rf7 Re5 Rc4 Re4 Rf6 Qg3 Rf7 Ng4+ Kd1 f2 Rf6 Rb6 Kc2 Ne5 Rf7 Ra6 Kb3 Nf3 Kb4 Ne1 Nc5 Ra3 d4 Ra7 Nd2 Ra6 Rb1 a1Q Nd3 Ra2 Nf1 Rd2 Bh3 Bh6 Rf4 Rf7 Bf5 Bg7 Ne3 Ng2 Rg1 Ne1 Nf1 Qa4+
1r1k1Nq1/3nRp1p/B1QB1P1B/3P1P1p/3R1Pq1/3B1BNK/1b4R1/1n1n3b w - - 0 1 illegal: Other
b1NbN3/2p2NP1/1n2K3/1N3p1Q/2nRBP1p/2P1P1q1/1Rr1B2k/B1N2q1b w - - 0 2 legal: proof: d4 a5 h4 b5 a4 g5 hxg5 e5 dxe5 Ke7 axb5 a4 b4 Ra5 bxa5 Ke8 Kd2 Ke7 Ke3 Ke6 Ke4 h5 f4 a3 g4 d6 e3 a2 c3 f6 a6 h4 g6 Ne7 b6 Nf5 a7 Rh6 a8B Bg7 b7 Rh5 g5 Rh8 Bb2 Nd7 b8N Rh5 Be2 Bb7+ Nc6 Qg8 Rh2 Nb6 Na3 Bh8 Rb1 a1Q g7 Rh7 g6 d5+ Kd3 d4 Ke4 d3 Nb5 Qa6 Ba1 d2 Rb4 Nd6+ Kd4 Kf5 e6 Ndc4 e7 Rh5 e8N Rg5 Ne5 Rg2 Nf7 Bf3 Kc5 Kg4 Be4 Kg3 Ra4 f5 Kd4 Nb2 Ke5 N2c4+ Ke6 Rf2 Rb4 Bh1 Rb2 Qf8 g8N Bf6 Ne7 Qg8 Nc8 Bd8 B2d3 Rg2 Qh5 d1B Be2 Rf2 Rd2 Bc2 Rd4 Qg7 Bg2 Be4 Bgf3 Ba8 Be4 Qh7 g7 Qg6+ Nf6 Qg5 Ne8 Rg2 B2d3 Ra2 Rb2 Qg4 Ne2+ Kh2 Nc1+ Qg2 Rb3 Qg3 Be2 Rc2 Rb1 Qa2 Rb2 Qb1 Na2 Qbe1 Nc1 Qf1
4qQnK/1P4B1/BRp1P3/4bp2/2B1rP2/2B2p2/2PRNRrk/1qN1bB1b w - - 0 2 illegal: Other
3KBqRB/2ppN3/1kPnBP2/2NB2NR/2PqB2P/2p5/2nb1r1q/Q5r1 w - - 0 1 illegal: Other
B4b2/3b1q1p/1PB3Pk/2N5/rBN2nr1/PKp2N2/B1P1qpR1/1B1R1rQ1 w - - 0 1 illegal: No proof kernel
3b4/BpnPKbq1/qPN1R1rn/1P3B2/p1N2Bpk/3N1n2/1B2BRP1/6Q1 w - - 1 2 illegal: No possible last move
n3K3/p3P3/1BNPpP2/1prRqN2/N7/kBN2b1r/3bP1Nr/q2RQ1B1 w - - 0 1 illegal: No proof kernel
bn5B/nRnrBR2/2NP2P1/2Npr3/bp2BK2/1PpB3B/2PQ3R/k4b2 w - - 1 2 illegal: No proof kernel
5bnR/1pRN1p1K/P4p2/2B2BQR/1P2rb2/k2P2r1/1rR1nP2/1RBN2b1 w - - 0 2 illegal: Other
2RrQ2b/1bRRP3/p4PBn/2r3pb/q5P1/K1RNBp2/R2PB1kN/b7 w - - 0 1 illegal: No proof kernel
4RQ1R/3pnpbB/1P2BnN1/PB3r2/n2NKP1B/k7/n2pP3/qr2BN2 w - - 0 1 illegal: Other
r1b5/1n2P1BB/1P1R1NB1/rN1p2p1/Pr5k/B1r1Q2q/1p1PKb2/RR2B3 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Nc6 bxa5 b4 c3 Na7 c4 Nb5 cxb5 Bc5 Qb3 Be7 Qd1 Bf8 a4 Ke7 h4 c5 e4 f5 b6 g5 a6 d5 e6 Kf6 e7 c4 e8B b3 a7 f4 h6 c3 e5+ Kf5 e6 f3 e7 Kg4 h5 c2 h7 Be6 h6 Qc8 Nh3 Qd7 Nf2+ Kg3 Ne4+ Kg4 Nbc3 Rd8 a8R Nf6 Bd3 Bg7 Bg6 Ne8 Qe2 Nd6 Ba3 b2 Qe3 f2+ Ke2 c1R Nb5 Rc3 Rhb1 f1R Nf6+ Kh4 Bc2 Rhf8 h8B Nb7 h7 Rf4 Bcf5 Rde8 Rd8 Rb4 Bc2 Qc8 Rd6 Qd7 Bce4 Ra8 Bc2 Ra5 Bce4 Bh6 Bg7 Rfa8 h8B Qc8 Bh7 Bh3 Beg6 Qe6 Nd7 Bf5 Be5 Bg7 Bf4 Be5 Nf6 Bd4 Bg7 Qc8 Bh2 Qh8 Bf4 Bc8 Bh2 Qd8 Be5 Qd7 Bh2 Qe6 Bg1 Qh3 Bf2+ Qg3 Be1 Bc5 Qf3 Bf2 Qe3 Qh3
3r3K/QNN1prR1/p4N1B/2rR1pP1/R1PbPr2/1B2q3/P2qb2N/N5k1 w - - 0 1 legal: proof: g4 g5 d4 c5 dxc5 Qb6 h4 Qf6 hxg5 Qe5 c4 Bh6 b4 Nc6 f4 Bf8 f5 Qd6 g6 Nd8 b5 Nc6 bxc6 Nh6 g5 Qc7 f6 Nf5 Bh3 Ng7 fxg7 Qb6 Bf1 Qd8 Kf2 h5 Kg3 b5 Kh4 d5 g8R f5 e4 b4 c7 Kd7 c6+ Ke6 g7 Ke5 Rh3 a6 Be2 b3 Na3 d4 Nc2 d3 Bb2+ Kf4 Nf3 d2 Nh2 Qd4 Qg1 Qb6 Rd1 Rh7 Na1 Be6 c8N Bf7 c7 Qe3 Na7 Rd8 c8N Be8 Bc3 b2 Nb5 b1R Nc7 Rb5 Nd6 Rc5 Nb7 Ba4 Bf3 Bc2 Bg4 Bd3 Rg3 Be2 Bb2 Qd4 Ra3 Qc3 Ra4 Qe3 Rc1 d1R Rc2 Rc1 Rd2 Rf1 Rd5 Qd2 Bf3 Rf2 Be5+ Ke3 Bg4 Bf1 Bd1 Be2 Ng4+ Kf3 Bb3 Rf1 Qd4 Kg2 Nh2 Qe3 Bf6 Kg1 Be5 Rb5 Qa7 Rc5 Rh8 Rf2 g8N Rf7 Rh7 Bg7 Bf6 Bh8 Bg7 Rf1 Bh6 Bd4 Nf6 Rf3 Nhg4 Rf4 Rg7 Qd2 Kh3 h4 Nh2 Qe3+ Nf3+ Kf1 Kh2 h3 Kg3 h2 Kh3 h1Q+ Kg3 Qc1 Nh2+ Ke1 Kh3 Qc2 Kg3 Qg1+ Kh3 Rf3+ Kh4 Kf2 Kh5 Rf4+ Kg6 Qd2 Kh7 Kg2 Nb5 Qge3 Nc7 Rd6 Kg8 Kg1 Kh8 Rd8+
B4B2/B1K3Nr/3p1n1q/bB2R1p1/Qp1Pbk2/pPN5/1PP1Br2/R3qR2 w - - 1 2 illegal: No possible last move
b1K1NQ1R/5p2/5pp1/1rbRR3/B1Pq1PR1/1B1R2P1/pP1n1rk1/Bq3N2 w - - 0 2 illegal: Other
K1R4B/r4N2/3PR1R1/pp1rp1bp/4nR2/k1B1QbPN/4PP1n/1BrR4 w - - 0 1 illegal: No proof kernel
2NK4/1B3P2/1QRbbp2/pN2BP2/bP1r2p1/BnB1p3/P1b2kBN/3R2r1 w - - 0 1 illegal: No proof kernel
2b2Q2/N1pKP1N1/pp1p2B1/r2P4/BPBR1RnB/P5p1/4pr1q/B4kN1 w - - 0 3 illegal: No proof kernel
3R3N/1bNqP1qn/3bR1r1/P2r2n1/NB1b1pRp/3BRP2/2r1Q2P/1k1K1R2 w - - 0 1 illegal: No proof kernel
rQ2n2B/Pb3b1p/K3qpBB/n4B2/3b1NRq/3r1RR1/1B1PNP1P/3k1q2 w - - 0 1 illegal: No proof kernel
2rR3n/b3R1Bp/k1B1q3/3Q1N1P/5PBR/p1P1KB2/Pp1nb3/r1rb1B1N w - - 0 1 illegal: No possible last move
7Q/2bNN1nR/6pr/n1p1q2k/1NPBR3/rP1PK1Pb/N1Np1RBr/4b3 w - - 0 1 illegal: No proof kernel
1k2B2R/2nR1Nqb/p2p2bP/R2P1r1p/NK1Bb1nP/P1B1B3/8/3BrQr1 w - - 1 3 illegal: No proof kernel
b2bQB1R/N2r4/1kPp4/1q2N3/2R1pp1N/3PN1P1/1bB1NPrB/1n1nn1K1 w - - 0 1 illegal: No possible last move
Rnb2Bk1/3r3b/p5B1/Rpp1N3/P1Pr1qNN/b2B1n2/1PP2KNr/3N2Q1 w - - 2 3 legal: proof: g4 e5 f4 h5 gxh5 Nc6 fxe5 Na5 d3 Nc4 dxc4 Qe7 Qd2 Qf6 Qd1 Qd8 h4 c5 e4 d5 h6 b5 e6 f5 h5 g5 e5 f4 h7 a6 h6 f3 e7 Kf7 e8N d4 Kf2 d3 Nc3 g4 Nh3 d2 Nf6 Qd6 Nf4 Qb8 Ng2 Ne7 Bd3 Nc6 Qg1 Bg7 Nd1 Ra7 e6+ Kf8 a3 Qf4 e7+ Kf7 Rh2 Rd7 e8B+ Kf8 Rh5 Nb8 Beg6 Rd4 Re5 Rd7 Re7 Rd4 Ra7 g3+ Kf1 f2 Ng4 Rd7 Ra8 Bc3 Ra2 Bb4 Ra1 Rg8 h8N Rd4 Nf7 Rh8 Nfe5 Kg8 Nc3 d1R+ Ke2 Rf1 Nd1 Rh7 Be3 Rhd7 h7+ Kh8 Qh2 Rh1 Qg1 Rh2 Ra2 Kg7 h8N Kg8 Bd2 f1B+ Ke1 Be2 Ra1 Bf3 Kf1 Qf8 Bh6 Qf4 Bf8 Bfb7+ Nf3 Bd5 Nf7 Be4 Nfe5 Bf5 Be8 Bh7 Beg6 Qe3 Nfh4 Qc1 Ne1 g2+ Kf2 Qh6 Qf1 g1N+ Neg2 Ba5 Nde3 Bb6 Rd1 Kh8 Be2 Kg8 Rd3 Kh8 Rb3 Kg8 Rb4 Kh8 Ra4 Kg8 Ra5 Kh8 a4 Kg8 Nef3 Bd8 Nfe5 Bg5 Be4 Nf3 Nd1 Bd2 B2d3 Bb4 Bg6 Ba3 Qg1 Qf4
5B2/Pqp1B2p/1pB2B2/QR1NBk2/2P1N1rP/r4nr1/1P1Kb1N1/nR3b1n w - - 2 3 illegal: No proof kernel
3QR1BN/Bk2prPb/1nq1P3/Rp6/2NN1rqP/1PR1n2R/3pK3/2bn1R2 w - - 0 1 illegal: No proof kernel
1kqr3N/1B4Pp/4p1K1/2pNN3/Nb3rR1/q3PP1P/bB1n1q2/NR1RQ1n1 w - - 0 1 illegal: Other
1Nb3q1/4Np1N/3b1P1P/B5p1/rnk4P/rRpr2RB/NQP1r3/3NKn1B w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 f4 Ke7 e4 Ke6 h4 a5 b4 g5 f5+ Ke7 b6 d5 b5 c5 e6 Kd6 e5+ Ke7 b7 c4 b6 a4 h6 a3 Qd4 a2 Nc3 Rh7 Bh3 Qe8 Nge2 Ra5 Rb1 a1R Rb3 Nc6 b8N Qd7 b7 R1a3 Nd1 Qe8 Rg1 R5a4 Bd2 Nf6 Nc1 Rh8 Qb2 d4 Ba5 d3 Na2 c3 Rg4 Qd8 Rg3 Nb4 Nc6+ Ke8 b8N d2+ Kf2 Bd6 e7 Rg8 Na6 Kd7 e8N Nfd5 Ne7 Ne3 Ke2 Nf1 Kf2 Qc7 e6+ Kd8 Nf6 Re8 Nb8 Qb6+ Ne3 Kc7 Nh7 d1R f6 Rd3 Ke1 Kb7 Nd1 Qd8 Nd7 Ka6 Nb8+ Kb5 Ng6 Rh8 e7 Kc5 e8B Kc4 Bc6 Re8+ Be4 Re6 Ne7 Re5 Rg2 Qg8 Rg3 Rf5 Beg2 Rf2 Bh1 Re2+
3N3k/Q2n1p2/bPpn1N1B/1p3R2/2P1p2r/R1Nb3N/KP2qPB1/BN2nr2 w - - 0 3 illegal: Other
n4R1K/pb1p2N1/NBr1P3/2PBnp2/4N1B1/PB1P1BR1/2p2b1Q/1kqn2r1 w - - 0 1 illegal: No proof kernel
NRBQnBR1/3Rpbpp/2bP1p1q/K4R1B/4PNP1/1R5P/2q3n1/r1r1k3 w - - 2 3 illegal: Other
3nqQ1R/kp4R1/B1nBR2N/3bn3/Rb1rp1B1/N1p1P1pP/1P1b2P1/3K2R1 w - - 0 1 illegal: Other
3r1k2/1bB2PRB/2R2B2/P1nbqPP1/1KN5/2nr2b1/2RR2Q1/1NN3r1 w - - 0 1 legal: proof: h4 a5 b4 d5 bxa5 f5 e4 b5 exf5 g5 hxg5 c5 c4 b4 cxd5 b3 axb3 c4 bxc4 Ba6 c5 Bb7 c6 Bc8 d4 e5 Kd2 h5 Kc3 h4 g4 h3 f4 e4 c7 h2 g6 e3 d6 e2 d7+ Ke7 f6+ Ke6 d5+ Kd6 f7 Ke7 d6+ Kf6 g7 e1R g5+ Kg6 Bb2 Re7 Qc2+ Re4 Bd3 Bb7 c8N Rh5 Ne2 Qb6 d8R Rh6 d7 Qb5 Nd6 Ne7 Rc1 h1B Nc4 Na6 Ra2 Nc5 g8R+ Kh7 Ba1 Rh3 Rg7+ Kh8 Bb2 Ree3 Rc8 Bhd5 d8B Reg3 Rc6 Rg1 Bc7 Rd8 Rd1 Rf3 Nc1 Rfg3 Qg2 Rf3 Kc2 Rg3 Bh7 Rd3 Rgg6+ Bg7 f5 Be5 Rg7 Bg3 Rd2 Qa6 Rcg6 Qd6 Bf6 Qe5 Rh6 Be4 Rb2 Nd5 Ra2 Nc3 Rb2 Na6 Kb3 Nc5+ Kb4 Bed5 Rbc2 Qe3 Be7 Rg8 Rgg6 Rd8 Rc6 Kg7 Bf6+ Kf8 Rg6 Qe2 Rg7 Qe5
2q1b3/2B3K1/RRQ1Nq1P/P2r1B2/1r3P2/b1BPN2n/1q2k2p/1Nn3BR w - - 0 1 legal: proof: c4 a5 h4 h5 g4 g5 hxg5 f5 b4 d5 bxa5 h4 cxd5 Kd7 e4 Qe8 exf5 Qh5 gxh5 Ke8 Ke2 Kf7 Kd3 b5 Kd4 e5+ Ke4 c5 a4 b4 f4 b3 d6 c4 d3 c3 h6 b2 d7 h3 d8B h2 f6 Kg6 a6 c2 f7 Nc6 a7 Nd4 a5 Rb8 a8R Bd7 Nf3 Kh5 g6 Kg4 g7 Ne2 Ra6 Rb4+ Nd4 Be8 Bd2 c1Q Qa4 Qc8 Qc6 Nc1 Bc7 Bd6 Kd5 e4 f8B e3 Bc3 e2 Ne6 Kf3 Bh3 e1Q Bf5 Qh4 Be7 Bc5 Ke5+ Ke2 Bed6 Nf6 g8N Nh7 Ne7 Rf8 Nd5 Ng5 Ne3 Nh3 Bb6 Rg8 Bdc7 Rg5 Kf6 Rh5+ Kg7 Be7 Bg6 Rd5 Bf5 Bc5 Ra3 Qhd8 Rb3 Be7 Na3 b1Q Bbd4 Qb2 Nb1 Rc4 Rbb6 Ba3 Ng4 Ra4 Bg1 Rb4 Ne3 Qf6+
1N3B2/1rN2PPP/2nN1qpb/1B2QRBR/r4B2/P2n1k2/2R1b2q/K1r5 w - - 0 1 illegal: No possible last move
3B4/1N1b2R1/P1B1P2n/qB5p/1Pr3qr/Nk3Nq1/3B2P1/Rb1qR1QK w - - 0 1 illegal: No possible last move
4bq2/B1n5/P1RB3p/NKbN2q1/B5rN/2PR1p1P/1R3NpP/1Qr3k1 w - - 0 1 legal: proof: d4 a5 f4 b5 a4 e5 fxe5 c5 axb5 Na6 dxc5 Nc7 b4 Ne6 bxa5 Ng5 Nc3 Bb7 Nb1 Nh3 gxh3 Bc8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 e4+ Kg6 c3 f5 e6 d5 a6 h6 e5 f4 b6 Kf5 e7 Ke4 e8N g5 b7 g4 b8B g3 e6 d4 e7 g2 c6 d3 c7 d2 Nd6+ Ke3 e8N Kf2 Ba3 Bf5 c8R Bc2 Nc7 Bh7 Ra2 Bf5 Kb5 Qf6 Nc4 Bc5 Ba7 Bg6 Rb2 Qg5 Nf3 Ne7 Na5 Rg8 Nd5 Be8+ Rc6 Rd8 Nh4 f3 Bd3 Rd7 Bc2 Rg7 Qc1 d1Q Ba4+ Qc2 Nd2 Qcf5 Bb4 Qf8 Qb1 Rd6 Ba3 Re6 Rc1 Re1 Ne4+ Kg1 Nf2 Rg6 Rcc2 Rc1 Rd2 Rg7 Rd3 Rg8 Nf4 Nd5 Bb4 Qge7 Ba3 Rg4 Bb4 Qg5 Ba3 Nb6 Nd5 Na8 Bb4 Bd4 Be7 Bc5 Bd6 Nc7+
4BrBN/1P2pPN1/4Pn2/B2q1pR1/2p5/2N1k1P1/2QRnRB1/n1r1q2K w - - 0 1 illegal: No proof kernel
B2r3q/PN5b/2r2B1n/b3N1R1/1R1bB1nP/bN1Q1Kb1/3R1PPk/3nB3 w - - 0 1 illegal: No proof kernel
1N1r4/1Kn1kB2/b3PR1q/bN3RBN/1NrQ1B2/2b2n2/P3PP2/1R3rnb w - - 0 1 illegal: No possible last move
1Nr1kN2/qPn5/P7/4NR1P/3PR1BB/K1bnb3/RB2r2b/2B1Qnrb w - - 0 1 illegal: No proof kernel
4r2B/B3r2q/b7/q1R1rn1Q/kP5n/bNPN1rPN/1K2bP2/1B1RR2R w - - 0 1 illegal: No possible last move
7R/3N2n1/b3P1Br/kN1nK1n1/1n3R1P/PPb3Bq/1b1qNr1B/R1Q3N1 w - - 0 1 illegal: No possible last move
1RB2n2/R4n1q/3P2Br/PP1RNR2/2KPrn1k/2N3rb/1N3B1r/2bq2Q1 w - - 0 1 illegal: No proof kernel
3r4/Rb1r1N1B/1k1BNBqP/qbn1bR2/1P2B1K1/2N5/Q1p1n1PP/5rR1 w - - 0 1 illegal: No possible last move
N3N2q/2BN3K/B1r3Pb/P4PN1/k1b1R3/r1qR1B1p/2n3P1/n1Q1R1rb w - - 0 1 illegal: Other
n3Rr1N/1q2qR2/BB1N1P2/4bP1P/2PQnNkB/6rq/bR1p4/rR1K4 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 b4 Kf6 h4 e5 c3 d5 c6 a5 h6 g5 h7 e4 c7 d4 h5 d3 b6 a4 b5 a3 b7 a2 b6 g4 Bb2 g3 Ne2 g2 Kd2 g1Q Na3 Qd5 Rb1 a1R Nc4 R8a3 Nd6 Nd7 b8B Qh2 b7 Qh3 Ba7 Nb6 b8R Na8 Bb6 Be6 c8R Bg7 Re8 Qb7 Rh2 Bf7 Rf2 Ba2 Qa4 e3+ Kd1 d2 Qb4 Nh6 Qc4 Rf8 h8N Ng4 Qd4+ Ne5 Ng3 Rb3 Ba6 Ra3 c4 e2+ Kc2 e1Q Ne2 Rg3 Rf3 Qf2 Kd1 Qe3 Bc3 Qee4 Bca5 Qe7 Bd8 Qd5 Rb2 Qb7 Bab6 Bh6 Qd5 Nd7 Qd3 Nc5 Qd5 Kg7 Qd4+ Kh7 Rf2 Bg7 Rf1 Kh6 Rf3 Qf7 Bh4 Be5 f6 Qh2 f5 Qa7 Bb5 Qh3 Ra3 Ne4 Nf4 Qac7 Ra7 Qc6 Rae7 Qb7 Ba6 Qe6 Rf7 Qee7 Bc5 Ra3 Bf2 Kg5 Bh4+ Kg4 Bb6 Rg3
N2B1B2/4K2p/2N2n1P/rPNQ1PR1/4brBb/1P1qRR2/1n1qq3/b3kB2 w - - 0 1 legal: proof: d4 b5 g4 d5 a4 f5 axb5 e5 gxf5 Qd6 dxe5 Qd8 c4 Ne7 cxd5 Ng8 Kd2 Kd7 Kc3 c5 Kc4 g5 e4 a5 h4 a4 f4 a3 f6 a2 e6+ Kd6 h5 g4 e7 g3 e8N+ Kd7 d6 Ke6 b3 g2 e5 Kf5 Kd5 c4 f7 c3 e6 c2 h6 Qh4 d7 Bc5 f8R+ Qf6 d8B Be7 Nf3 Kg4 Rg1 Kg3 Nc3 Kf2 Ne5 Nd7 Ba3 c1Q Nc6 Qg6 Na4 Bb7 Nc7 Ra5 Nc5 Ne5 Na8 Bh4 Kd6 Nf6 e7 Nd3 e8B Nb2 Bd7 Qd3+ Ke7 Qcd2 Bg4 Rg8 Rc1 a1B Rc3 Rg5 Qf3+ Ke1 Qd5 Rf5 Re8 Q3e2+ Re3 Qd3 Rg8 Qd2 Rg5 Qd3 Rh1 g1Q Rh3 Qh2 Rf3 Qf2 Re5 Qfe3 Re6 Qe3d2 Bb4 Re5 f5 Re4 Re5 Rc4 Ree3 Rf4 Bc3 Ne8 Bg7 Nf6 Bf8 Bc8 Qc4 Be6 Qe4 Bd5 Qe6 Be4 Qc4 Qd4 Qd5 Q4d3
1KN3R1/BPPnR2Q/2q2Pr1/b3Bn1b/2B1k3/p2N1r2/1q2n1P1/qR2B1N1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 c4 h4 f4 a4 b4 a3 c6 h3 f6 Kg6 c5 Kf5 b6 d6 b5 e4 c7 e3 c6 h2 b7 e2 g6 e1N b6 Rh4 g7 Rh3 f7 Rh8 Bc4 Rh3 Bb2 Qd7 Nc3 Nf3 Nce2 Nh6 g8R Ra6 Nc1 Nd4 Rb1 Ne2 Nd3 Rf3 Qc2 Qe8 Bh8 Nd7 b8B Be7 f8B Bd8 b7 Qg6 Be5 Qf6 Ba1 Qb2 Ba7 Rb6 Nh3 Ra6 Rhe1 h1Q Ng1 Qh5 Qc3 Qg6 Qh8 Qgf6 Be7 Qfc3 Bh4 Qf6 Ba2 Rb6 Qh7+ Qg6 Kc4 Ke4 f5 Ra6 Bb3 d5+ Kb5 Rb6+ Ka5 d4 Bc4 Qe6 Ne5 d3 f6+ Nf5 Bg3 d2 Nd3 Rb3 Ka6 d1Q Be5 Rg3 Bc3 Rg6 Ba5 Qa2 Be5 Qdc2 Bd2 Qa1 Bb4 Qcb2 Ba5 Nf8 Bac3 Bd7 c8N Be8 Bb4 Bb6 c7 Qc6 Bb8 Ke3 Nc5 Rg4 Bg3 Ba5+ Ka7 Nd7 Ka8 Rc3 Ba7 Bh5 Bh2 Kd4 Bg3 Nf4 Re7 Rd3 Bbe1 Ne2 Bh2 Rf3 Be5+ Ke3 Nd3+ Ke4 Rc1 Nc5 Rb1 Rg6 Kb8 Nd7+
2qB1Nk1/1nK5/B3r1b1/1p3Q2/2RN3P/NP1P2R1/1BrP1rBR/3bbnr1 w - - 0 1 legal: proof: f4 b5 a4 h5 g4 d5 gxh5 e5 fxe5 d4 a5 d3 cxd3 Qd5 Qb3 Qd6 Qd1 Qb6 axb6 Be6 Qc2 Bf5 Qd1 Bc8 Kf2 f5 Ke3 Kf7 Kd4 g5 Kd5 c5 h4 a5 e4 a4 b7 c4 h6 f4 h7 f3 b3 f2 Rh3 g4 Ra3 g3 Qe2 g2 Rg3 c3 Bb2 c2 Qg4 c1R Nf3 g1R Nd4 Ra6 Bg2 Nc6 b8N f1B Nd7 Bc5 Nf8 Nd8 Qf5+ Rf6 Ra1 Rc2 Na3 Nh6 Rc1 Ng4 e6+ Kg7 e7 Re6 e8R Nb7 e5 Be2 Qf1 Rg8 Qf5 Bd1 Re7+ Kh8 Rc7 Bb6 Rc4 Nh2 Ra1 Bc7 Rc1 Bd6 Kc6 Nf1 Rb1 Bc5+ Kc7 Rg4 Ra1 Rf4 Rc1 Rf2 Rb1 Rb6 e6 Bd7 e7 Be8 Rc1 Bg6 e8B Re6 Bd7 Kg7 h8B+ Kg8 Bc8 Ba7 Nb1 a3 Bf6 a2 Bd8 a1Q Na3 Bc5 Nb1 Qa8 Na3 Na5 Ba6 Nb7 Rh3 Bg4 Re1 Bd1 Ree3 Ba7 Rh2 Bb8+ Kd7 Bg3 Rf3 Rfe2 Re3 Be1 Rg3 Rf2 Kc7 Qc8+
1R1b1RnR/5b2/r3N1rb/P1nr4/2BNBP2/2pqkbP1/PBK5/Q1R1N3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 Kd6 f4 h5 g6 b5 f6 c5 g7 e5 f7 h4 Bc4 h3 Ne2 h2 Kd3 b4 Qg1 b3 Bb5 b2 Na3 b1R Qe1 c4+ Kd2 e4 Be8 c3+ Kc2 e3 Bb2 Ra6 Bc6 Rd1 Rc1 Nd7 g3 Rh6 Ba8 Nc5 Qf1 Rg6 Bc6 Ne7 g8B Bh6 f8R Be6 Bf7 Ng8 Qg1 Ke7 d6+ Kf6 d7 Kf5 d5 Ke4 d6+ Rd5 Nd4 e2 Bb7 Qb8 d8R e1B d7 Bf2 Rc8 Qc7 d8N Ke3 Rb8 Qb6 Bc6 Qb5 Qd1 Qf1 Bb7 Rh5 Be4 Bc4 N8e6 Rd5 Nb1 Bg1 Nd2 Bf2 N2f3 Bg1 Ne1 Bf2 Rg1 h1B Rg2 Bg1 Rh2 Bf3 Rh5 Bb5 Ng5 Be8 Be6 Bf7 Rh3 Rf5 Bc4 Rd5 Nge6 Na4 Nb3 Bg7 Ba1 Kf2 Rh8 Bh6 Rb1 Ke3 Qc1+ Kf2 Nd3+ Ke2 Bb2 Bb6 Ne1+ Kf2 Nbd4 Nc5 Ba1 Bc7 Qb2 Bd8 Rc1 Ke3 Qb1 Rf6 Bb2 Rg6 Qa1 Qd3+
3Bk3/2q1N1rP/1Rb3pP/5R2/n1BB1N1P/1Qrnb2P/1NK5/Br2rbR1 w - - 0 1 illegal: Other
r2qR2Q/nr4B1/R5P1/BN1P1pN1/P1N4n/RK2P2B/3rbb2/q1k3rR w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 a4 Kd7 g4 h5 d4 b5 Kd2 f5 Kc2 c5 a6 h4 a7 b4 g6 c4 g7 h3 d6 Ke6 d7 Kd5 e6 Ke4 e7 h2 e8R+ Ne7 g8R c3 g5 Nc6 d5 Ba6 Nd2+ Ke3 Kb3 c2 Bb2 c1Q Ra3 Qa1 Ngf3 Rh4 Qe1 Rd4 Qh4 Bg7 Qh6 Be5 Rg6 Bg3 Qf8 Bf2 Qh8 Bb5 Bh3 Ba6 Ne4 Rd2 Nd4 Bd3 Rd6 Ng6 Nb5 Nh4 g6 Qf1 Bg7 Qa1 Rb1 h1R Rf6 Rg1 Rc1 Rdd1 Ng5+ Kd2 e3 Be2 Rb1 Rc8 a8N Na7 Nb6 Ra8 Rb2+ Kc1 Nc4 Rd2 Ra6 Qc8 d8B Qd7 Ba5 Qd8 Nb6 Bd1+ Kc4 b3 Kc3 Bg4 Nc4 Be2 Kb4 Rdd1 Rd2 b2 Rd4 Rd2 Rg4 Rf1 Rg1 Re1 Rh1 b1R+ Rb3 Rbb2 Kc3 Rg1 Ra3 Ra2+ Kb3 Rac2 Nb6 Rc7 Nc4 Rb7
1b1bqR2/bR3B2/NP1QNR1r/p1Br2nB/1N6/PR1n3P/2P2q2/kb4K1 w - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 f5 exf5 c5 d4 b4 dxc5 b3 Qd5 Rh6 Qxb3 Rh7 Qb7 Rh8 f4 Kf7 Kf2 Kf6 b4 a5 h6 e5 h7 g5 c6 d5 a3 d4 b5 e4 c7 g4 h3 d3 Qa6+ Nc6 Nf3 e3+ Kg1 d2 Be2 d1Q+ Ne1 g3 Nd2 g2 Bh5 e2 Rb1 Bh6 Rb3 Be6 c8B Nb4 Qd6 Bg5 Ba6 Nh6 Ne4+ Kg7 Nc5 Kf6 Be3 Nd3 Bc8 Nf7 Na6 Qe8 Bc5 Qd2 Bb7 Rd8 Bd5 Bh4 Bc4 Ng5 Bd5 Nc1 Nd3 e1B Ndb4 Nd3 Bc4 Beg3 Bd5 Rg8 h8R Rg6 Rh7 Rh6 Rb7 Qe2 Qb8 Bg8 Bdf7 Rd5 Qc7 Be1 Rh2 Bc3 Qd7 Be5 Rh1 Bb8 b6 Qf2+ Kh2 Ba7 Rf1 g1B+ Kh1 Bh2 Qd6+ Kg7 f6+ Kh7 f5 Be5 Qc6 Beb8 Qd6 Kh8 Bfg6 Be6 f7 Kg7 f8N+ Kf6 Qf4 Bg8 Ne6 Bf7 Qc7 Bg8 Qe7+ Ke5 Bf7 Ke4 f6 Ke5 Bd6+ Ke4 Qf8 Ke3 Bc5+ Kd2 Bd1 Kc1 Qd6 Qf4 Kg1 Qf5 Rc3 Kb2 Bdh5 Qf4 Rf3 Ka1 Rb3 Qf5 Bfg6 Qf4 f7 Qd2 f8R Qf2+ Kh1 Nh7 Bf7 Bd8 Rf4 Ng5 Rf6 Qf4 Nec7 Ne4 Kg1 Ng5 Bfg6 Re5 Rb2 Ba2 Rb3 Rd5 Ne6 Bb1 Bf7 Qf2+
RKr1b2r/N3P2p/1PN3RN/3B3P/3qr1b1/6RP/5Nrb/rnk1BB1Q w - - 0 1 legal: proof: c4 b5 f4 e5 fxe5 d5 cxd5 Be7 a4 Nc6 axb5 Nd4 h3 Nf5 g3 Nh4 gxh4 Bf8 Kf2 Kd7 Kg3 a5 Kf4 f5 d4 c5 b4 c4 e4 g6 h5 a4 d6 Ke6 d7 c3 d5+ Ke7 b6 c2 d6+ Ke6 b7 a3 b8N a2 b5 Qc7 d8R Bg7 b6 Ra4 d7 Ne7 Nd2 Qc4 Nc6 Qd4 Ne2 Rb4 Rg1 Rc4 Rb1 a1R Na7 Rb4 Ba3 c1R Ng3 Rc7 Rb3 Ra4 Bb4 g5+ Kf3 f4 Nf5 Bf6 Nh6 Nd5 Rf8 Nc3 d8N+ Kd7 Kg4 f3 Kf5 g4 Ndc6 f2 Rg2 Nb1 Rbg3 Be7 Rg1 Bc5 e6+ Kd6 e5+ Kd5 Ne4 Bd6 Be1 Bd7 Rd8 Be8 e7 Rb4 e6 Rc4 Rf3 g3 Ra8 g2 Rg3 Rca4 Rg6 Bh2 Rg3 Qd3 Kf4 Kc4 Ke5 Rb4 Qf3 Kb3 Qd1+ Kb2 Qf3 Bg6 e8B Kc1 e7 Qd4+ Ke6 Rba4 Bf7 Rc4 Bg8 Be8 Bf7 Qc3 Kd6 Qd4+ Bd5 Rb4 Be2 f1B Nf2 Rc4 Bd3 Be2 Qe4 Bf3 Bf1 Bg4 Nd8 R7c5 Ndc6 Rb4 Kc7 Rcc4 Rh1 g1R Kb8 Rg2 Rg1 Rc3 Nd8 Rc7 Ndc6 Rba4 Rb3 Rg3 Qh1 Rg2 Rf3 Qc5 Rf6 Re4 Rg6 Qd4 Nd1 Rc2 Rg3 Rg2 Nf2 Rc8+
b3kBbR/1BK2N1N/4rqbP/3qP1QR/3b2p1/5PP1/1Nr1Rnq1/6BB w - - 0 1 illegal: No proof kernel
1RNRn1R1/N2K4/prq1P2B/P2PNB2/5QBP/k3qq2/q3n2N/b3r1n1 w - - 0 1 legal: proof: g4 d5 e4 c5 exd5 e5 b4 h5 gxh5 e4 bxc5 e3 f3 Bf5 Ba3 Ne7 Bc1 Be4 fxe4 Ng8 Ke2 Ke7 Kf3 b5 Kg4 g5 Kf5 b4 c4 g4 d4 g3 a4 a6 h4 e2 a5 e1N h6 f6 c6 Kd6 h7 g2 c5+ Ke7 e5 b3 c7 b2 c8B Nc6 Bh6 Nf3 Qd2 Bg7 Qf4 Qb6 Be2 Rb8 Nc3 b1Q+ Bd3 Qc7 Nb5 Rb6 Na7 Qa2 Rb1 Qb7 Rh3 Qa8 Rg3 Qb7 Nh3 g1Q Ng5 Qe3 Rb2 Ng1 Nf3 Qc7 Nh2 Qb7 Be2 Qc7 Bg4 Qd7+ Kg6 f5 d6+ Ke6 Rb3 Kd5 Rb4 Qb7 d7 Nf6 Kf7 Re8 h8N Qa8 Rb3 Kc4 d5+ Nd4 d8R Qc6 Ng6 Re6 Bd7 Ne8 Rb4+ Kc3 Rb5 Nde2 Rb1 Qca4 c6 Q4c4 c7 Qc6 c8N Kc2 Rc1+ Kb2 Rb1+ Ka3 Rb2 Rf6+ Ke7 Rd6 Qf3 f4 Bdf5 Rf6 Qe4 f3 e6 f2 Ne5 f1Q Qf4 Qff3 Rb4 Qcc4 Kd7 Rf8 Nf7 Ba1 Ne5 Qcc5 Bh5 Rf6 Rg8 Rg6 Rb5 Rg2 Bhg4 Qc6+ Ke7 Rf2 Rb4 Rf1 Rb5 Qa8 Kd7 Re1 Rb1 Rc6 Rb7 Rb6 Rb8 Qc6+
2Nn1n2/BRPqq3/P7/1R2PqpN/1q5Q/1Brk4/b1nb1KP1/R2B2NN w - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 a5 b4 e5 fxe5 g5 bxa5 Na6 h4 Nb8 h5 Ra6 Rh3 Nh6 Rh1 Rg6 hxg6 Ng8 c4 Ke7 a4 Ke6 e4 d5 g7 h5 a6 f5 a5 b4 c6 b3 a7 h4 a8R b2 c7 f4 a6 d4 c5 d3 c6 f3 Bf4 d2+ Kf2 h3 Bh2 Qe7 Qc1 d1Q Qc2 Qdd7 Be2 Nf6 Nc3 b1N Ra7 Nh7 Qa4 Na3 Nd1 Nc2 Rb7 Qb4 Bf4 h2 Be3 Be7 g8N Nf8 Nf6 Rh3 Nh5 Bd8 Rb5 Bb7 c8N Ba5 c7 Bd5 Ba7 Nc6 Bc4 Nd8 Bb3 Qbe7 Qd4 Bd2 Rb7 Qb4 Ra5 Rg3 Rab5 Bc4 Qe3 Qbe7 Qf4 Bd5 Qh4 Qb4 Kf1 f2 Ke2 Rc3 Kf1 Kf7 e6+ Kg6 e5 Kf5 e7 Bg8 e8B Qde7 Qg3 Ke4 Qh4+ Kd3 Bc6 Qd7 Bf3 Bd5 Ne3 Qde7 Nf5 Bf7 Nfg3 Be6 Ba4 Ba2 Bd1 Qd7 Nh3 Qbe7 Rg1 h1Q Bb3 Qh2 Nh1 Qf4 Bb6 Qfb4 Bd4 Rc6 Ba7 Kc3 Ke2 Rc4 Kf3 f1Q+ Kg3 Qfd3+ Kf2 Qg6 Re1 Kd3 Ng1 Qgf7+ Bf3 Qh7 Ra1 Rc3 Bd1 Qhf5+
2RQ1q2/1rNB3k/Rn1B1b1b/1p1P3K/PPN3n1/5B2/1RpP1r2/Nn1N3b w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 a3 Qa4+ Bd7 Qxa3 Be6 Qa7 Bc8 Ke2 Kf7 Kf3 Kg7 Kg4 c5 f4 e5 g6 h6 Nh3 c4 Qb6 c3 Be2 e4 Bf3 e3 Nf2 c2 Nd1 e2 Na3 e1B Nc4 Rh7 Kh5 Ba3 g4 Na6 g5 Be6 f6+ Kh8 f5 Qe7 f7 Rf8 f6 Nb4 Qd8 b5 b3 Bb2 a4 Qd6 Rb1 Na2 b4 Ba1 Bb2 Bh3 Be5 Bg2 Rb2 Nc3 Rf1 Qc5 Bd6 Bg3 Re1 Nb1 Re6 Re8 f8R Bf4 f7 Bh1 Rf6 Re4 Re8 Re7 f8N Rb7 Nd7 Rf7 g7+ Kh7 Rf8 Ne7 g8N Qf2 Nc5 Nc8 Nb3 Nb6 g6+ Kh8 g7+ Kh7 Rg6 Qc5 Kh4 h5 Re6 Bh6 Nf6+ Kg6 Ne8+ Kh7 Nc7 Qf2+ Kh3 h4 Kg4 h3 Kh5 h2 g8B+ Kh8 Ra2 Bf6 Rb2 Kg7 Na1 Qc5 Bf4 Qe7 Re8 Qf8 Bh7 Kh8 Bf5 Kg7 B5g4 Kh7 Rd6 Bg2 Be5 h1N Bd7 Nf2 Rc6 Ng4 Bd6 Na8 Ra6 Nb6 Qe7 Bh1 Rc8 Bfg7 Qd8 Rf4 Be2 Rf2 Bf3 Bf6
3q3N/r3P2b/Q3KR1N/pP4Pr/BB2pR2/n1rn2P1/k3Nn1R/B1b1B3 w - - 0 1 illegal: No proof kernel
1BRN4/RpB3Q1/8/3R2nr/PP1KNp1q/nNn5/Bk1P1P1R/bbb4r w - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 d5 exd5 a4 c3 a3 bxa3 Qd6 a4 Rh7 a5 Qb4 cxb4 Rh8 Ke2 Kd7 Ke3 Kd6 h4 g5 a4 e5 h6 f5 h7 c5 a6 g4 h5 g3 h6 e4 a7 f4+ Ke2 c4 Rh2 e3 Nf3 g2 Qb3 g1Q Qc3 Nc6 Qg7 c3 Kd3 e2 Ra3 c2 Nc3 Qg5 Nd4 Na5 Nb3 e1N+ Kd4 Ne7 Bb2 c1B Bc4 Bf5 Ba1 Rb8 a8R Qh4 Ra7 Bb1 Bb2 Rc8 Ba1 Rc5 Ne4+ Kd7 d6 Kc6 d7 Rh5 d8B Nd5 Bc7 Nc3 Bf7 Nc4 Be6 Rg8 h8N Be7 Nf7 Rh8 h7 Bd6 Ra2 Na3 Rc2 Nf3+ Kd3 Re8 h8R Ng5 Kd4 Re7 Rd8 Be5+ Kd3 Re8 Bc4 Reh8 Rd5 Ncb5 Bd4 Bf6 Bc5 Ba1 B5d6 Nc3 Bb8 R8h7 Bdc7 R7h6 Nbc5 Rh7 Ba2 R7h6 Nb3 Rh7 Rd8 Rh8 Rc8 Kd5 Nd8 Re8 Nd6 Re1 Ne4 Nd1 Nd4+ Nc4 N4c6 Rh1 Na5 Nb2+ Kc3 Nd1+ Kb3 Na3 Rc4 Bf6 Rc5+ Kd4 Re5 Kd3 Rb5 Ba1 Rf5 Nb5 Rc5 Ndc3 Rd5+ Ke2 Kc4 Kd1 Nb3 Kc2 Kc5 Na3 Kd4 Kb2
5b1n/P1qn2B1/1RQ1b3/P1B2ppP/PRN1N3/1rRn2rK/k1B4N/5R1r w - - 0 1 illegal: No proof kernel
r1nr1NnR/5R1Q/2pq2RN/1b3b1b/1kP2K1P/2q3N1/1Pp2PN1/4BBB1 w - - 0 1 illegal: Other
nQR2R2/2R1P1BN/3r4/rP2N1b1/BN2Bq1R/1qnP4/2pp1k1P/K4q1b w - - 0 1 illegal: No proof kernel
2qB1K2/1Pbn4/q2B1N1P/RN1B4/1prb3R/2Pb1Pp1/1NQ1RrN1/n4k2 w - - 0 1 illegal: No proof kernel
2RN1B2/NPP4p/6P1/1B3NrN/K4p2/nqRn3R/1Q2qBP1/2rk1nbb w - - 0 1 illegal: Other
R3qN2/2b1K1BN/BbP2r2/1B6/2nkb2p/1P1pRR2/1P1P1bN1/nb2QR2 w - - 0 1 illegal: Other
r1KB4/r2nN2P/1Pb1Bp1k/NPb3b1/R1N1BP2/4RBpb/6R1/1q3Qr1 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 d5 dxc5 d4 a4 Na6 axb5 Nc7 Bd2 Nh6 Bc1 Nd5 exd5 Ng8 Kd2 a5 Kd3 e5 Kc4 g5 h4 e4 b4 g4 c6 e3 h6 g3 d6 d3 Kc5 e2 c4 e1B h5 a4 h7 a3 h6 d2 c7 a2 Kc6 Ra3 c5 Bg7 b6 Kf8 b5 Bc3 d7 Qe8 Be2 Be5 Nh3 Ba6 c8B Ra5 Bb7 Qa8 d8N Qa7 Kd7 Nf6+ Kc8 Bc7 c6 Ng4 Rg1 Bd6 c7 Be7 Nc6 Bg5 Nf4 Nf6 Rg2 Nd7 Bf3 Nb8 Nd5 f6 Nde7 Rg8 h8R Ra3 Qe2 d1B h7 Bb4 Qf1 Bc5 Na5 Qa8 Be4 Bf3 Bf4 Ra4 Na3 Bg4+ Bf5 Bh3 N3c4 Qa7 Re1 a1R Re3 R4a2 Bd6 Ra3 f4 R3a2 Qe2 Rg1 Qf1 Ra4 Kd8 Ra3 Bf3 Bb7 c8B Bc6 Bce6 Qa8 B5e4 Kg7+ Kc7 Kh6 Be5 Rg7 Kc8 Rf7 Bc7 Ra1 Nb7 Qa2 Nba5 Qb1 Rd8 Rg7 Rd4 Ra3 Bd8 Ra1 Nb3 Ra8 Nba5 Rf7 Ne5 Rg7 Ra4 Rf7 Nec4 Rg7 Ng6 Rga7 Ne7 Nd7#
2K5/1NP2Rn1/2q1NPR1/R1pN1qB1/2PQp1BP/2n1n2B/r3rR2/b3k1n1 w - - 0 1 legal: proof: e4 f5 exf5 c5 g4 h5 gxh5 a5 d4 a4 d5 a3 bxa3 b6 a4 Bb7 a5 Bc6 dxc6 Rh7 Qd4 Rh6 Qd1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 h4 g4 a4 g3 c4 g2 f4 d6 c7 b5 a6 b4 a5 b3 a7 b2 h6 Nd7 Kc6 d5 Kb7 d4 a6 d3 h7 d2 Rh2 Bh6 Nf3 g1N Rf2 Ne2 Ng5 Nd4 Ne6 Nb6 Ra5 Qe8 Bh3 Nd5 Nc3 b1Q+ Nb5 Qe4 Nd6 Nge7 Bg4 Rg8 h8R Bg7 Rh6+ Qg6 Qg1 d1N Be3 Rae8 a8B Ne2 a7 N1c3 Qd1 Ng1 Qd4 Qc2 Bd2 Ne3 Bh3 Nc6 Bg4 Nd8+ Kc8 Qa4 Bg2 Qc6 a8N Re7 Nb7 Rh8 Nf8 Ne6 Nb6 Rg8 B2h3 Bh8 Nd8 Ng7 Nfe6 Rge8 Rh5 Rd7 Rg5 Ree7 Nb7 Rd5 Qe4 Rd6 Bc1 Rd2 Qd4 Ra2 Bd2 Kf7 f6 Qf5 Rh5 Kg6 f7 e4 f8R Rf7 Rg5+ Kh6 Be2 Rf6 Rg4 Kh5 Nd5 Rg6 Rf7 Rg5 Rg3+ Rg4 Rgf3 Rg2 Bc1 Rh2 Bd1 Re2 Rg2 Ra2 Rg6 Rhe2 Rf2 Qg5 Bg2 Kg4 f5 Kg3 Bf1 Red2 Bg4 Re2 Rh2 Qf6 Bg2 Kf2 B2h3+ Ke1 Rf2 Ned1 Bh6 Ne3 Bg5 Na4 Bf4 Ne8 Qe5 Qg5 Qb2 Bc3 f6 Qf5 Bg5 Ng7 Qb5 Ba1 Qb2 Qf3 Qe5 Qf5 Qd4 Nc3
2k2r2/Rq2n1Q1/1P1n1NK1/1p5B/1B3N2/Pqp1bN1R/2PBP1R1/1n1n1Rr1 w - - 0 1 illegal: No proof kernel
2k1n2N/p1b2Kn1/1qP2PN1/p1N5/2R2r1n/P4QBr/2P2RB1/RBnB1q2 w - - 0 1 illegal: Other
B3K3/1b3p1n/q1BnR1NR/pPNQqk1B/P1b1NP1P/R5Bb/1b6/2r5 w - - 0 2 legal: proof: h4 b5 d4 g5 hxg5 e5 dxe5 b4 g3 b3 cxb3 Bd6 b4 Bc5 b5 Bf8 Be3 h5 Bg2 a5 Bd2 h4 Bc1 h3 Bf1 Rh4 gxh4 Ra6 Qa4 Rh6 Qd1 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 c5 e4 d6 a4 h2 b4 Bb7 g6 Qg5 g7 Nc6 b6 d5+ Kb5 c4 Ne2 c3 Nf4+ Ke7 e6 Kf6 e7 c2 e8B d4+ e5+ Kf5 e6 d3 e7 d2 Be2 Qg3 Bh5 Rh6 Ng6 Ba8 b7 Qg1 b8N Qg4 Nc3 Qg3 Na6 Rh8 Ne4 Bb7 Re1 h1B Nac5 Bg2 Ra3 Nf6 g8R Qe5 f4 Rh6 Rh8 Nh7 Bb2 c1Q Bd4 Qa1 Bf2 Bg7 Bg3 Na7+ Kb6 Qc1 b5 Bh3 Bc6 Qcc3 Qf3 d1B e8B Bb3 Qg2 Qe6 Kc7 Bc4 Kd8 Nc8 Qd2 Qce5 Qd5 Ba6 Ba8 Bb7 Re2 Qa6 Bc6 Qa7 Re8 Qa6 Re6 Bh8 Nf8 Rg6 Ke8 Rg4 Ng6 Bg7 Bh2 Rg1 Bg3 Rc1 Qd1 Qa7 Rd2 Qa6 Rd6 Qd5 Qb3 Bb2 Qa2 Qe5 Qb3 Be2 Qd5 Bc4 Nf8 Rc3 Re7 Bg4 Rh6 Bh3 Ree6 Rc1 Ng6 Nd6+
5b2/p1R1B2q/NpP1KbB1/1Q1qR3/1n2N3/Bbb1r3/PP2P3/kN2BR1q w - - 0 1 illegal: No possible last move
1Rn4k/1R2qpn1/4bP2/Pp1NP2B/2b1qNP1/1B1Q3p/rKN4B/2rR3N w - - 0 1 legal: proof: d4 e5 dxe5 b5 h4 a5 b4 g5 bxa5 c6 hxg5 Qb6 c4 Qd8 c5 Bd6 Qa4 Bc7 Qd1 Bb6 cxb6 Ba6 Bb2 Bb7 Bc1 Bc8 Kd2 Kf8 Kc2 Kg7 f4 d5 a4 h5 e4 d4 b7 h4 a6 c5 g6 d3+ Kb2 h3 a7 c4 f5 d2 e6 Qf8 e5 Rh5 e7 Rh8 e8N+ Kh6 f6 Nc6 b8R Qg7 Be2 Nb4 Bh5 Qf8 g4 Ne7 g7 Kh7 g8N Nbd5 Nc7 Bd7 Ne6 Ne3 Na3 N3f5 Ne2 Qe8 Nc2 Ng7 N6f4 Nc8 Ne7 Be6 Ned5 Qe7 Ng3 Re8 Qe2 d1B Qd3+ Kh8 Re1 Rf8 Nh1 Be2 Rd1 Re8 Be3 Rd8 Bg1 c3+ Ka2 Rd6 Bh2 Ra6 Rb7 Rb8 a8B Ra7 Na3 c2 Kb3 c1Q Nc2 Qe3 Kb2 Qe4 Ra3 Nb6 Rc3 Rf8 Rc8 Rg8 Rcb8 Nc8 Rb6 Rc7 R6b7 Rd8 a5 Bf1 Ncb4 Rc1 Nc2 Rd7 Qf3 Bc4 Qd3 Rd6 Nb6 Rc6 Na1 Nf5 Ra7 Rc5 Ka3 Ng7 Bd5 Bb3 Rab7 Ba4 Bc4 Bc2 Nbd5 Bb1 Ba2 R5c4+ Kb3 Ra4 Kb2 Ra3 Bc4 Ba2 Nc2 Ra4 Bb3 Ra3 Ba4 Bc4 Bb3 Ra2+
5RnB/nN2pKb1/q2N2b1/p2P2r1/2PPR1p1/6B1/rN1PR1Bq/k2B2Q1 w - - 0 1 illegal: No proof kernel
qkb5/N1p2q1K/1PP2pPN/Q2pRr2/R6R/Bn1BPN2/5q1n/1N4bB w - - 0 1 legal: proof: f4 e5 a4 b5 axb5 g5 fxg5 e4 h4 e3 g6 Ne7 dxe3 Nbc6 e4 Nb8 e5 Ng8 g4 a5 g5 Bc5 h5 Ra6 g7 Rg6 hxg6 Bf8 Kf2 h5 Kf3 a4 Ke4 f6 Kf5 a3 b4 d6+ e6 a2 c4 h4 c5 h3 e3 h2 b6 Rh7 b5 Rh5 b7 Nd7 b8N Be7 b6 Ba6 Qe1 Qc8 Bd3 Kd8 Ba3 d5 Nf3 Bf8 Qa5 Bd6 Be4 Qb7 e7+ Kc8 Nc6 Qa8 Na7+ Kb8 e8R+ Bc8 c6 Bg3 Re5 Bf2 Rc1 h1Q Rc4 Qh4 Bd3 Qg3 Rh4 Bg1 Bf1 Rh8 Bg2 Qf2 Bh1 Nh6+ Ke6 Nf7 g8B Nh6 g7 Ng4 Kf5 Nh2 Kg6 Rh5 Bh7 Nc5 g8N Nb3 Kg7 Qb7 Bd3 Qa8 g6 Rf5 Nh6 Nc5 Nc3 Nb3 Rc1 a1Q Nb1 Qd4 Kh7 Qb4 Rcc4 Qf8 Ra4 Qf7+
qNK5/4B2b/4p1PB/bNBRQn1R/P1P1qpBp/3b1rR1/r1k1P3/6N1 w - - 0 1 illegal: No proof kernel
B4N2/3N2BN/3b1rp1/r3p1PR/n3R1bP/N1nP1bQ1/r1P1RpK1/2kB4 w - - 0 1 illegal: No possible last move
1K4n1/2PrpRbp/2RbB3/N3PprP/R3Nn1k/7B/1P1B1b2/R1Nn2Q1 w - - 1 2 illegal: No proof kernel
BN1r2bn/1R2r1Pp/N1rp2kn/5n1R/R1K1Nb2/pN1P4/1BP2P2/BQ6 w - - 0 1 illegal: No possible last move
R4nR1/R3BrN1/1pB1Qnp1/N5P1/Pr1rPb1q/2N4K/BBp4P/4k2r w - - 0 1 illegal: No proof kernel
2n1QR1R/N2r4/3pN2q/2PP2K1/kN3P1B/PRnn2pp/2Bn1B1b/2R2r2 w - - 0 1 illegal: No proof kernel
2R2nK1/3p2r1/B1pPb3/Q3BP1R/2R3Pb/3Pr1bn/1Np1Bb2/1kNN2R1 w - - 0 1 illegal: Other
B2K1NR1/q7/n2B1PQ1/1p1Npnp1/3b4/RPq2R2/2bkBNPP/Bq5b w - - 0 1 illegal: Other
1r2N1B1/b7/N1NB3k/2bBnpr1/2R1p1p1/3P1PKb/bQ1R1PPR/4r1R1 w - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 g5 bxa5 Bh3 Na3 Qd7 Nb1 Qg4 Qb3 Nc6 Qd1 Qf3 exf3 Nd8 Ne2 Ne6 Ng1 Bf5 h4 Bh3 Ba3 Nf4 h5 Ng6 hxg6 h5 d6 c5 g7 e5 a6 f5 a7 Kf7 d7 Kg6 d8R b5 Qc1 c4 Ne2 e4 Nbc3 b4 Nd4 h4 Nc6 b3 Rh2 b2 Nd5 b1B Ke2 c3 Ke3 c2 Bc4 Nh6 g8B Rc8 a8R Rb8 Nf6 Kg7 Ra4 Kg6 Bd6 Rb6 Ne8 Rb8 Bcd5 Nf7 Rc4 Kh6 a4 Ne5 a5 Ba2 Qb2 c1B a6 Rh7 a7 Rg7 a8N Be7 Qb4 Bb2 Rg1 Bd4+ Ke2 Be3 Nac7 Ba7 Na6 Bf8 Qb2 Rg6 Bc7 Bfc5 Bd6 Bg4 d3 h3 Rc8 Rg7 Rc2 Rg6 Rd2 Rg7 Rhh1 h2 Rc7 Bh3 Rc8 g4 Kf1 Ba3 Ke2 Rb6 Ke3 Rb8+ Kf4 B3c5 Kg3 Ra8 Rb8 Rg5 Rb4 Rb8 Ra1 Ra8 Rhg1 h1R Rc4 Ng6 Rgc1 Re1 Rab1 Re2 Rh1 Rb8 Rbg1 Ne5 Rh2 Re1
1qR2B2/RP1N1nPr/n1N2rBp/1Rp5/b5Pn/N1Q3pp/4K1kP/1B3N2 w - - 0 1 illegal: Other
B1R1Bk2/P1r3b1/2R1pNq1/r3qRn1/NKp1P2P/2N2bp1/1BP1p3/R6Q w - - 0 2 illegal: Other
6NN/1KRn1P2/N4rpN/2pRqR2/1b1P1p1r/n4B2/p1PPB3/1k1qBQ2 w - - 0 1 illegal: No proof kernel
4RN2/p2p2B1/2pB3n/1PP1KP1R/P1B2r2/Q1b1p1Rb/1p4rk/1bB3NN w - - 0 1 illegal: No proof kernel
1BRn1B1K/nB2Q1p1/1q2B1Pr/2R2N2/r1P2pR1/2k5/q1nq1PP1/N1b3Nb w - - 0 1 illegal: No possible last move
1rn1br2/R3p1B1/Nk6/rNbqB2B/1PR3Rp/1P2PN1P/4N1KQ/1q2q1n1 w - - 0 1 legal: proof: f4 g5 fxg5 d5 c4 b5 cxd5 b4 a3 Nc6 axb4 Nb8 Kf2 Kd7 d4 a5 g4 c5 h3 Kc7 d6+ Kb7 g6 h5 d5 f5 g5 h4 e3 a4 g7 f4 d7 a3 g6 c4 d6 c3 b3 a2 Ne2 f3 Na3 c2 Bb2 c1Q Qc2 Qd1 Nb5 Nf6 g8N Nh7 g7 Ra3 Nh6 Ka6 g8R Ra5 Rg4 Kb6 Nf5 Qb1 Bg7 Nc6 Nfd4 Na7 Kg1 f2+ Kg2 Ng5 Nf3 Qe1 Rg1 Bb7 Rc4 Bc6 Qb2 Qa8 d8N Nc8 Ne6 Be8 d7 Qd5 Nec7 Rg8 d8B Qb1 Bh8 Bg7 Qd2 Bd4 Bg7 Bc5 Na6+ Kc6 Bc7 Kb7 Bb8 Kb6 Bbe5 Qe1 Rd1 a1Q Qc2 Qb1 Rd2 Qf7 Rd7 Qd5 Ra7 Rf8 Nc1 Rg8 Be2 f1R Qd2 Ne6 Bd1 Nd4 Ne2 Rh8 Kh2 Rf8 Rg4 Rg8 Kg2 Rf8 Nc1 Ne2 Qa2 Ng1 Qf2 Rf6 Ne2 Rc6 Qg3 Rc7 Qh2 Rb7 Bc2 Rb8 Bg6 Qdd3 Bh5 Qd8 Nd2 Rf8 Nf3 Qd5
Bb2n3/1b2pN2/1n3B2/4BP1p/PqNrPq2/R1rQN2R/3R1NrP/q1k3K1 w - - 0 1 illegal: No possible last move
R2B2Nr/1p1RrB1b/2R4N/2bP2pQ/BPK1P2q/6P1/2b2NN1/knbb2n1 w - - 0 1 illegal: No proof kernel
1N1NnK1b/rB2p3/rrp1PR1P/2P1Bb1R/1b2nB1N/1kpRQ1N1/1P6/4q3 w - - 0 1 illegal: Other
r1BbQ3/5pp1/R1b4k/2RPNRrP/B1pK1P1B/4N1N1/b1B1q1P1/1nn3n1 w - - 0 1 illegal: No proof kernel
Rq4R1/1B2pprP/RBbbP1p1/1N3PQK/4NN2/n3B3/qBk4P/r3b1n1 w - - 0 1 illegal: No possible last move
7k/pBbP1B1p/nN1n1Rp1/1rBQ1NP1/5NK1/4qb1r/PR1RP1n1/2R3q1 w - - 0 1 illegal: No proof kernel
R2RqN2/p1p1BrP1/r4N1p/1NbB1nn1/RbP4P/PBr5/q3k3/1KQ3B1 w - - 2 3 illegal: No proof kernel
R7/rR3KBQ/np2p1Np/1P2P1kN/2Brq2n/RP1b1rP1/1BN3r1/N3b3 w - - 0 1 illegal: No proof kernel
K1n1B3/p5b1/r1p1P3/3rqpB1/knP3R1/P1bN1P1r/BRRB2N1/3rQN2 w - - 2 3 illegal: No extended proof kernel
1q1R3r/1B5b/p2pN2p/1r4b1/2kP1P1P/b1bRR1B1/P1n1BK2/N1Q1N1nR w - - 1 3 legal: proof: f4 c5 g4 f5 gxf5 c4 e4 c3 f6 Kf7 bxc3 Qc7 c4 Qe5 c5 Qf5 exf5 Ke8 d4 Kf7 c4 g5 c6 b5 h3 e5 c5 b4 c7 h6 c6 b3 Na3 b2 Bd2 b1Q Bg2 g4 Bb4 e4 Bc5 g3 Bf1 e3 Bb5 e2 Nf3 a6 Be7 g2 Nc2 g1B Qc1 d6 Bd8 Be7 h4 Bb7 c8B Be3 c7 Be4 Bb7 Nd7 c8R Rb8 Ba5 Ne5 Rd8 Bd2+ Kf2 Bc3 Nfe1 Nf3 Rh3 Ng1 Rd3 Bb2 Bc3 Ba3 Re8 Qb3 Rb1 Bd8 Na1 Ne7 Bb4 Nc6 Re7+ Kf8 f7 Kg7 f8N+ Kf6 Bd2 Nb4 Ne6 Nc2 Re8 Kf7 f6 Bh7 Ba5 Rc8 Bc3 Rc5 Bc4 Rb5 Bb4 Kg6 f7 Kf5 f8R+ Bf6 Rg8 Qb2 Rgg3 Bg5 Rge3 Qb3 Rd8 Qb2 Nf3 Kf6 Be1 Qb4 Kg3 Kf5 Bf2 e1B Kg2 Bc3 Bg3 Qc5 Kf2 Qc7 Ne1 Qb8 Rd1 Kf6 Be2 Kf7 Rdd3 Ke7 Rg8 Kd7 Ng7 Kc7 Ne6+ Kb6 Rd8 Ka5 Nb3+ Kb4 Na1+ Kc4 Ng2 Bg8 Qb2 Nf3 Rh1 Ng1 Ne1 Bh7 Qb1 Rb6 Qc1 Rb5
2Bn2b1/N2R3p/Kn1P1p1B/5r1Q/2k1p1BP/n2RqNP1/4NP1r/1nb2R1B w - - 0 1 illegal: No proof kernel
1N3NKN/1P3B2/4n3/3Rppk1/pq5R/1Q1bnR1r/Pn1BPP1B/2n1bNb1 w - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 b5 cxb5 c5 d3 c4 d4 Ra7 Bh3 Rc7 Bf1 Rc5 dxc5 Qb6 Bf4 Qc7 Bc1 Qd8 Kd2 f5 Ke3 Kf7 Kd4 Kf6 Kd5 g5 b4 c3 h4 g4 c6 c2 b6 g3 h6 g2 c7 a4 h5 d6 h7 Nh6 b7 Bg7 b5 Rf8 h8B Re8 b6 Qd7 Nf3 g1B Bg2 Nf7 h6 Bh2 h7 Nc6 b8N Na5 Nd4 Nd8 Bd2 c1N Qb3 Ba6 c8R Nc4 b7 Bg1 Rh4 Nb2 Rc3 Ne6 Rf3 Bd3 Bh1 Kg6 Bg2 Bh6 Be5 Rh8 Bh2 Qc7 Bh1 Qc3 Bg2 Qb4 Bh1 Rg8 h8N+ Kf6 Bg2 Rg3 Bh1 Rh3 Bg2 Ng7 Ne6 Bf4 Nf8 e5 Bh1 Kg5 Bg2 Nh5 Ke6 d5 Kf7 d4 Kg8 Ng7 Bc3 Ne6 Nd2 Be3 Nf1 Bd2 Rb1 Be1 Bh1 Nd1 Bd2+ Ne3 Rb2 Bb1 Rc2 d3 Rc5 Bc2 Rd5 Bb1 Bc3 d2 Bg2 d1N Bd2 Rg3 Bh3 Bc2 Bg4 Nb2 Bh5 Bd3 Bf7 Rh3
3NRR1b/pp2NPk1/P4Rq1/BBBRK3/1p2bQ1n/Nn1p1P2/3P1r2/4b2r w - - 0 1 illegal: Other
B1kN2Bq/2r3pN/1B1PbbN1/1p3pPp/b1BQ4/2b3K1/rPR2n1P/4R2R w - - 0 1 illegal: No proof kernel
1kNb3B/5KNb/4QR1B/r1p2Bpr/b1P3np/4p3/P1N1PnP1/Bb1R3R w - - 0 1 illegal: Other
R1N1r1k1/3pr1p1/p4nN1/1Kp2B1b/Q5P1/Pn1NpnB1/1B1PPq1N/R6R w - - 3 4 legal: proof: g4 f5 gxf5 b5 c4 e6 cxb5 Bd6 Na3 Bb7 Nb1 Bg3 hxg3 Bc8 f4 Kf7 b4 h5 a3 c5 f6 h4 b6 h3 f5 h2 b7 e5 b5 e4 b6 e3 Nf3 Qe8 Bb2 Rh7 Rg1 h1N Nc3 Rh5 Qa4 Rh6 Bh3 Rg6 Nh2 Ne7 Nd5 Qg8 Nb4 Rh6 Nd3 Nec6 Kd1 Kf8 Kc2 Rh4 Kc3 Rh8 f7 Qh7 Kc4 Ne5+ Kb5 Nbc6 b8R Nf2 Rh1 Na5 Bg4 Ne4 Bh3 Ke7 f8N Kf7 f6 Qh4 Bf5 Bb7 Rd8 Bd5 b7 Nb3 b8B Nf3 g4 Qf2 Bg3 Rh6 Rc8 Kg8 Rb8 Bf7 Re8 Bh5 f7+ Kh8 Rd8 Re6 Ng6+ Kh7 Ne7+ Bg6 Rac1 Nf6 f8N+ Kh8 Ra1 Bh5 Nfg6+ Kh7 Nd5 Re7 Nb6 Rb8 Nf8+ Kg8 Rc8 Rb7 Ra8 Rb8 Ng6 Rbe8 Nc8 a6+
1r2N3/B1n2r2/N3Rn2/1p3pp1/2B1bBPR/2NpRP1p/1PrPQ1Nn/K1k5 w - - 0 1 illegal: Other
2b1B3/2B1NR2/1nQnkpB1/1R1r2B1/1N1n2rp/2ppb2p/2PPqP1P/1NK2R2 w - - 0 1 illegal: Other
1Bn3b1/RBBP1P2/2KRrQP1/BN4p1/Qb6/b3P3/kN2b1b1/2r3B1 w - - 0 1 illegal: No possible last move
q2QBR2/P3PqQK/N6B/1r2Qbn1/PQRq4/rPr5/2b1b3/k1N4Q w - - 0 1 illegal: No possible last move
4B2N/1k1KB3/1p4Q1/B1b1Pn1P/2BPbrP1/RN2b1n1/B1RQ2q1/6br w - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Bd6 f4 Ba3 fxe5 Bf8 g4 g5 h3 h5 gxh5 Qd6 Nf3 Qf6 Ng1 Qd8 Nf3 g4 Ng1 g3 Nc3 Qd7 Nb1 Qg4 hxg4 Be7 Bh3 Bc5 Bf1 Bf8 e4 Kd8 Ke2 c5 Kf3 Kc7 Kf4 f5 d4 g2 a4 b6 d6+ Kb7 d7 c4 d8B c3 a6+ Kc6 e6 c2 Ke5 f4 e7 f3 e8B+ Bd7 a5 f2 a7 Nh6 a6 Rh7 Ra3 Ng8 Rh2 Rh8 Qd2 Be7 Bc4 f1Q Ne2 g1B Nf4 Qd3 Ng6 Bc5 Be7 Nf6 Rg2 Rh6 Nh8 Qh3 Bb2 c1B Bc3 Kc7 Ba5 Bc6 Ke6 Qf3 e5 Be4 Re2 Nc6 Rh2 Rc8 a8B Qg2 a7 Rh7 Bb7 Rf7 a8Q Rf8 Ba2 Rf7 Ba6 Rf8 Qf2 Be3 B6c4 Rf7 Qa6 Rf8 Qb5 Kb7 Nd2 Ra8 Nb3 Ra6 Bd6 Ne7 Qd2 Nf5 Be7 Ra7 Bb4 Ra4 Ba5 Rb4 Nc1 Rb1 Nb3 Ng3 Qa4 Ng8 Kd7 Rf4 Qb5 Nh6 Qc6+ Ka7 Qe6 Nhf5 Qg6 Kb7 Qe1 Qf3 Rc2 Qg2 Qc3 Bh2 Qb4 Rh1 Qd2 Bhg1
3rb2n/1N2r1Rb/3P2N1/1K3pb1/1b1N1bP1/N1B1kN1Q/1P4QP/q2R1B2 w - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 d5 e4 g5 g4 d4 f3 Qd5 exd5 Nc6 gxh5 g4 Qd2 g3 Qd3 Ne5 Qd1 Ng4 fxg4 Bg7 Bc4 Bh6 Bf1 Bf8 Ke2 Kd7 Kd3 a5 Kc4 e5 c3 g2 c6+ Kd6 b6 d3 b7 a4 b8N d2 c7 e4 h6 Ke5 h7 Kf4 Nc6 a3 Qb3 a2 Kb5 e3 c4 d1B c5 Be7 Nd4 Bf5 c8N Bg5 c6 Ra7 c7 Nh6 Ngf3 g1B Na3 Rd8 h8N Bh7 Bd2 f5 Nd6 Nf7 c8Q Re7 Bc3 e2 Qb7 e1B Ng6+ Ke3 Qc6 Bd2 Nb7 Nh8 d6 Bc2 Rd1 a1Q Qcd5 Bf2 Rg1 Bfh4 Rg3 Bf4 Rh3 Bhg5 Qc6 Bg8 Rh7 Be1 Rg7 Bh7 Nfh4 Bd2 Qg2 Be4 Nhf3 Bd5 Qc2 Bf7 Qh3 Be1 Ba5 Bb4 Qcg2 Bc5 Be1 Bb4 Bc3 Be8+
4b1R1/pb2bR2/1R3B1n/2Q2P1k/2BPb1R1/3b1NP1/RP3rbK/1N3Q1r w - - 0 1 illegal: Other
n3Q3/3rQBKB/b1R4B/1P3r2/P1q1qr2/1k1P3P/ppR2B2/1N1N1Bq1 w - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 a5 g4 b5 gxh5 a4 a3 b4 Qb3 Nc6 Qc2 Na7 Qd1 Nb5 Ra2 b3 Ra1 Bb4 axb4 a3 Qc2 a2 Qd1 Na3 bxa3 Rh6 Bg2 Rh7 Bf1 Rh8 Kf2 Ke7 Ke3 f5 Kf4 c5 Kg5 g6 e4 b2 d3 c4 e6 Kd6+ e7 c3 h3 c2 a4 f4 h6 f3 e5+ Kd7 e6+ Kd6 b5 Kc5 d6 Kb4 d7 f2 h7 Kb3 Qh5 Qa5 d8Q Ra7 e8B Ba6 e7 Kb4 Rh2 Kb3 Ne2 Qe1 Nec3 Nf6 Kh6 g5 Kg7 g4 Bg6 g3 Nd1 g2 Bh6 Nd7 e8B g1Q Qe7 c1Q Bf7+ Qc4 Qhe2 Rha8 h8B Rf8 Rg2 Qb4 Bh7 Nb6 Qe8 Rd7 Q2e7 Na8 Rg6 Qh1 Rc6 Qc5 Nbc3 Qb6 Rc1 Qe4 Rc2 Qa7 Nb1 Qb6 Bfg8 Rf5 Bf7 Qbe3 Kg6 Qe1 Bd4 Rf4+ Kg7 Rf5 Be2 f1R Bc5 R1f3 Bf1 R3f4 Be3 Qf2 Ba7 Qh2 Bf2 Qg1+
1NnR2Br/7r/n1Q1rRBn/1Q1Pp1k1/1nP5/1PB2q1P/B1p3BK/4N3 w - - 0 1 illegal: No proof kernel
1Qqqkr1r/BPn2rP1/3R2N1/n1BP3Q/3nP3/2B1bK1B/8/1RbN1bB1 w - - 0 1 illegal: No proof kernel
1BNqR1Q1/b2Q1NRr/3P2n1/3b1B1r/QQ6/PQ1P4/3nPrbn/4K1kr w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 h4 Kd7 e6+ Kd6 a6 Ke5 a3 Kd4 e7 c5 e8Q b5 d3 g5 h6 f5 a7 g4 h7 c4 h5 b4 h6 b3 Bb2+ c3 Qd2 f4 Qc2 g3 Qc6 Ke3 Ra2 f3 Qd7 g2 Rh2 Ne7 Nh3 g1R Nd2 Bb7 Ra1 Rg2 Ng5 Rf2 Nf7 Nbc6 Bh3 Ne5 Bf5 Ng4 Ne4 Ng6 Ned6 Bg7 Rh1 Nh2 Nc8 Bd4 d6 Rb8 a8Q Bd5 Qaa4 Ba7 Qb1 c2 Bd4+ Kf4 Qa2 b2 Q2b3 Kg3 Bb6 Kg2 Bc7 Rb6 Bb8 b1N Qab4 Rb7 Q4a4 Rg8 h8Q Nd2 Qhc3 Rh8 Qcb4 Rb5 Rd1 c1R Rf1 Rh7 Rh1 Rg7 h7 Ra5 h8Q Rh7 Rf1 Rc4 Be4 Nh4 Nh6 Be6 Rg1+ Kh3 Rg2 Rh5 Nf7 Rc1 Rg8 Rg2 Re8 Ra1 Rb1 f2+ Kd1 f1B Qab5 Rf2 Bf5+ Kg2 Q5a4 Bd5 Qg8+ Kh1 Rc1 Bh3 Qb1 Bf1 Rc4 Bfg2 Rg4 Bh3 Rg7 Ng6 Kc2+ Kg2 Q1b2 Rh1 Q2b3 Kg1 Kd1 Bf1 Ke1 Bfg2
4N1r1/RNRb1K2/2N1P1PB/2bNQN2/n2qq1Q1/k1Pr4/qn1PB1q1/3q4 w - - 0 1 illegal: No proof kernel
Bn4b1/Q1Nrb2P/2Nn3B/4K2q/Q1qPN1kN/1q2R1P1/1r1qP2R/2q2N2 w - - 0 1 illegal: No proof kernel
b1Rr4/N2P2P1/3N2N1/kn3QN1/2BB1n1N/1Rnrq3/PnK1Pbq1/Q2r4 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 Kd7 d4 h5 Kd2 f5 d6 Kc6 g6 Kb5 a6 c5 g5 c4 g7 h4 a7 h3 d7 f4 g6 h2 e6 c3+ Kc2 f3 e7 f2 e8N Nc6 d5 Nge7 g8N Ka5 g7 b5 d6 b4 Nd2 Qb6 d8N Nd5 d7 Qe3 Bg2 f1R Nh3 Nf4 Ne7 Bb7 Ng5 Rh3 Ng6 Bc5 Bd5 Rg1 Bb2 b3+ Kb1 Rb8 a8Q+ Na7 Nd6 c2+ Kc1 Rhg3 Bc4 Bd5 Qc6 Nb5 Bd4 Be4 Qc8 Ba8 Rb1 Re1 Kb2 c1N Ndf3 Rf1 Qd3 Rd1 Qf5 Ba7 Re1 h1Q Nfh4 Qg2 Qcc5 Rf3 Qce5 Bc5 Rh1 Bb6 Rh3 Ba7 Ra1 Rg3 Kb1 b2 Kc2 Ncd3 Rc1 b1N Qef6 Nb2 Nc6+ Ka6 Q6e5 Rd8 Qef6 Bc5 Na7 Ka5 Q6e5 Bb4 Qef6 Be1 Q6e5 Bf2 Qef6 Qe7 Q6e5 Ra3 Rb3 Nc3 Be6 Nb1 Qd5 Nc4 Rh3 Qf1 Qh1 Re1 Rc3 Nb2 Rc8 Na4 Qf6 Qg2 Qf5 Rd3 Bc4 Nbc3 Rb1 Qe3 Rb3 Ra1 Qc1 Rb1 Qb2 Rbd1 Qa1 Nb2
Q1K1B2b/2R5/2n1Nr2/1PQ2QP1/qP1bRBQ1/1N1bn2n/P2rb2Q/2nk4 w - - 0 1 illegal: No proof kernel
2K1bn1B/1r1nb1NR/2pPB1QP/2rN1R2/4Pr2/4Q1b1/R1R2RqP/4q1k1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 g5 Kd4 a5 Kc5 f5 b4 f4 e4 a4 d4 c6 b6 a3 b5 f3 e6 Kf6+ d6 f2 e7 g4 e8Q a2 h6 g3 d5 g2 b7 Ra3 b6 Ra4 Bb2+ Kg5 Qd3 Kh4 Nf3+ Kh3 Qg6 Ne7 d7 Rh7 Kd6 Qe8 Kc7 Qf7 d8R Be6 d6 Bb3 Nc3 Rg7 Nd5 Bd1 Nd4+ Qf3 Ne6 Ra5 Qe3 Nd7 b8R Rc5 Bc4 g1B b7 f1R Bc3 Rf7 Bh8 Bf2 Ng7 Bg3 Rbc8 Kg2 b8R Qf2 Rb2 Bh5 Rc2 Qe2 Rb8 R1f4 Rbb2 Qf2 Raf1 a1Q Ra2 Qe1 Rda8 Qfd2 R8a7 Qde2 Rf3 Q2d2 Rhf1 Qdf2 Qg5 Ng6 Kc8 Be7 Rc7 Qfd2 R1f2+ Kg1 Qg4 Ngf8 Qg6 Rh4 Rf5 Rf4 Nb6 Qde2 Be6 Q2f1 Nd5 Qh3 Ne8 Rh7 Ng7 Qg2 Qg4 Bf7 Qg6 Be8 Rcb2 Nb8 Nh5 Beh4 Rbc2 Bd8 Rb7 Rd7 Rb3 Ra7 Rb7 Bg5 Re7 Nbd7 Rh7 Be7 Ng7 Rb7
1B2k1BB/q6P/1QRPr3/1b1QP2q/n3K2b/1nNrp2N/2Br1P2/1n1RB3 w - - 0 1 illegal: No proof kernel
B3b1QN/2K2P1R/1r1QN2q/n2bq1r1/8/BB2P1n1/1BPP1p1b/Bk3q1R w - - 0 1 illegal: No proof kernel
3B1r2/n1b1PRP1/4NqRq/3PNn1p/kPr4Q/1N2NN1Q/2Bq4/K3b2b w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d6 Kd7 g4 a5 d4 f5 Kd2 c5 Kc3 h5 b4 f4 Kb2 c4 e4 f3 e6+ Ke8 b6 a4 b7 f2 e5 Ne7 d5 Ng6 d7+ Ke7 Nd2 Bh6 Qb3 Nf8 g6 Bf4 g5 Bg3 Bd3 Qb6 d8N Nc6 b8N f1Q Nd7 a3+ Kb1 Qd1 Bc2 Qe3 Rh2 Na7 Rf2 a2+ Kb2 Ke8 Rf7 Ba6 Qc3 Rc8 Nb3 Rg8 Bd2 Bh4 Be1 Qdd2 Qd4 Bg3 Nf3 Bf4 Bh4 Rc6 g7 Ng6 Rg1 Rf8 g8Q Ne7 g6 Nf5 Rg5 Bg3 Nb6 Be1 Qf4 Rc8 Nc6 Bb5 Qg3 Rc7 Rg4 Qh6 Qh3 Rc8 Qg7 Rc7 Qf6 Ba6 Ne7 Kd8 g7 Rc5 Bg5 Kc7 Rg3 Kb7 Ng6+ Rc7 Bh4 Bb5 Qg5 Ka6 Qgg4 Rc5 Bd8 Rc6 Qgh4 Rc7 e7 Rc6 e8N c3+ Ka1 Bf1 e6 Kb5 e7 Rc5 Nc4 Ka4 Be4 c2 Nc7 Bg2 Ne3 Rc4 Ne6 Bh1 Kb2 a1B+ Ka2 Qd4 Rg4 c1Q Bc2 Qf6 Rg1 Bd4 Nge5 Bb6 Rg6 Qd2 Ka1 Bc7
2B1rBBn/2N1q1Q1/1kn2P1R/1nb2Q2/RnKB1P2/3Prb1P/1Np5/1Bb5 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 b5 a4 g5 f4 e5 a6 c5 a5 Kc7 f6 g4 d6+ Kc6 a7 g3 h6 b4 d7 e4+ Kc4 e3 a6 e2 h7 e1N Bh3 g2 Na3 b3 Nf3 g1B Ng5 b2 Qh5 b1N Bb2 Kc7 Bd4 Qe7 d8B+ Kc6 Ne6 Nh6 Nc7 Bd7 Qf5 Be3 d3 Rg8 h8Q Nf7 Qg7 Bc1 Bg4 Be8 Bd1 Nh8 Bc2 Nc3 Bb1 Bh5 Ra2 Qd6 Be7 Kb6 Ra1 Nc6 Ra2 Rd8 a8B Bg4 a7 Bf3 Bb7 Re8 a8B Nb5 Bc8 Nc2 Bab7 N2b4 Ra1 Nb8 Bd5 Qd7 Bd6 Re3 Ra2 Be7 Be6 Re8 Bg8 N8c6 Ra1 Bd8 Bf8 Qd6 h3 Be7 Rg1 Qd8 Rg6 Bd6 Rh6 Qe7 Ra2 Rd8 Kb3 Re8 Nc2 Re5 Ne3 Re6 Nd1 Re1 Bc3 Re3 Nb2 c4+ Ka4 Qf7 Bd4+ Bc5 Ra3 c3 Ra1 Nd5 Kb3 c2 Kc4 Qe7 Ra4 Ndb4
2Qrr3/2b2q1B/N2q2NB/bk1rP3/1PR1p3/KN2Nb1n/Q1N1PRP1/6b1 w - - 0 1 illegal: Other
8/1n2P2k/1qpqPB2/1q1nr1B1/3rPN2/2Pqb1Qn/1QBB3R/N1R2B1K w - - 0 1 legal: proof: d4 g5 f4 b5 e4 e5 dxe5 g4 a4 g3 axb5 Bc5 f5 Bb7 hxg3 Bf8 g4 Bd5 g5 Be6 fxe6 Bh6 Rh3 Bg7 Rh1 Bf8 Kf2 f5 b4 h5 g4 d5 Kg2 a5 c3 f4 e7 Kf7 g6+ Kg7 e6 h4 g5 h3+ Kh2 d4 b6 f3 b7 c6 b5 a4 b6 a3 Bd2 d3 Ne2 a2 Nf4 f2 Qb3 Qd6 Qb2 Ra4 Na3 Nf6 Rc1 a1Q Nc2 Na6 b8B Nd5 b7 Qb1 Na1 Rh5 Ba7 Nc5 b8B Kg8 g7 Nb7 Bd4 Kh7 Bf6 Rd4 g6+ Kh6 g8Q Re5 Be3 d2 g7 d1Q Bd2 Qb3 Bc7 Qd3 Bb6 Rc4 Bbe3 Qb6 Qf7 Rd4 g8B Bg7 Qe8 Bf8 Bf7 Kh7 Bh5 Bh6 Bd1 Qdb5 Bc2 Bg5 Bg2 f1Q Qb8 Qfd3 Bf1 Bh6 Kg1 Bg5 Rh2 Bh6 Re2 h2+ Kg2 h1N Kg1 Qa3 Rh2 Nf2 Qd6 Nh3+ Kh1 Rf5 Qe5 Rh5 Qg5 Qd6 Qg3 Rf5 Ne2 Re5 Beg5 Qbc4 Nf4 Qcb3 Bh8 Qb3b5 Bhf6 Qbc7 Ng2 Qa3 Bh4 Be3 Nf4 Qad6 Bhg5 Qcb6
6bQ/B3b1Q1/3N2rP/3nPn2/QQ4rk/2pB2p1/q1RR1PbP/K1Nr1Q2 w - - 0 1 illegal: No proof kernel
2rb2k1/rNQ1b3/P6P/BP4B1/B1NR4/1K1pB1B1/2rnpP2/1bR1Qq1n w - - 0 1 illegal: No proof kernel
4r1B1/3b3n/PpN1R3/2RpQnPN/bP1R2P1/1r6/R3Knkr/BQq4R w - - 0 1 illegal: No proof kernel
NR1B4/Q1b1n1p1/3krp1N/1P4P1/2B2rPN/P6R/r2bnQ2/1q1KNn1N w - - 0 1 illegal: No proof kernel
2N5/1rb1PRRr/2Qq1BBR/3P4/1p1K1bP1/QR1Ppk1n/2R3b1/2r2Nn1 w - - 0 1 illegal: No proof kernel
b7/4pN1b/k1Pq4/n3PP2/B1r2pPb/1Qr4B/3Br1BR/RNKBnQ2 w - - 0 1 illegal: No proof kernel
2B3RR/Rr1P2n1/RQK3qb/1p1PPNP1/2nrQ3/B1pbb3/k7/2R1N1n1 w - - 0 1 illegal: No proof kernel
3Q2R1/1P3PrP/1R1KB1p1/bqr1Q1p1/nrn5/4N2N/1N4PB/kb1Nn2N w - - 0 1 illegal: Other
1n1B1n1N/1R1nq2P/P3Bp2/4BbQ1/1P1N1R1r/2QpBb1k/3P4/r1K1B1q1 w - - 0 1 illegal: No proof kernel
6Q1/Nq1pbRKN/Nnn2Nr1/1p1P1Pq1/r2Q1PB1/B2R4/3NP3/n2kb3 w - - 0 1 illegal: No possible last move
2B2N1R/B1P2N1P/B1QR1qp1/rPb2B2/k7/2Q1p2P/bK3n1q/1nBb1r2 w - - 0 1 illegal: No proof kernel
n3b3/BPqNr1k1/R1B1QpB1/K1N3b1/1P2B2n/1pPQ3q/2PB2r1/1Rr5 w - - 0 1 illegal: No proof kernel
5nbb/Q1qRn1R1/5Q2/BP2N1p1/1PB4p/5r2/B1PKBPkr/B1r2Nr1 w - - 0 1 illegal: No proof kernel
q5B1/Q1r1NP2/n2PR1b1/1q2R1Q1/2N1p1K1/b3Np1N/2Pn1P1n/1k3qBN w - - 0 1 illegal: No possible last move
2N5/r2N1P1k/1KqQp2q/1p1Rn1Pr/NNP5/1R3N2/bP2BBQq/1n4n1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 exf5 c4 a5 c3 dxc3 Bg7 c4 Be5 c5 Bc7 Qf3 Ba6 Qd1 Bb6 axb6 Bc8 Ke2 Kf7 Kd3 Kg7 Kd4 a5 c4 h5 g4 d5 f4 a4 c6 h4 Kc5 a3 f6+ Kh7 b7 h3 c7 h2 f7 a2 f5 d4 f6 d3 Kb6 d2 Nf3 Nh6 Nc3 Bf5 Na4 e6 Be2 Qf8 c8N Nc6 b8N Ra7 Na6 Bb1 Nb4 Ne5 Rg1 h1Q Rg3 Nf5 g6+ Kh6 g7 Nh4 g8Q Qh2 Qg5+ Kh7 Rh3 Qh6 Rg3 Bg6 Rb1 a1Q f8N+ Kg8 Nd7 Kh7 f7 Bf5 Qf1 d1N Qd2 Nc3 g5 Qa2 Ra1 Nb1 Qd6 Bc2 Bf4 Bb3 Qg2 Qa3 Be3 Ba2 Ne1 Nhf3 Bf2 Ng1 Rb3 Nd2 Rd1 Nb1 Rg3 Qf3 Rd5 Qe4 Rb3 Qf3 Rdd3 Qa8 Nf3 Qg7 Qd4 Kg6 Nd6 Rh5 Nc8 Qh6 Qd6 Kh7 Rd5 Qc6+
b3qB2/1n1k2pr/3N4/P5R1/1N1N2rN/rBP1PRKp/1r3QP1/2n2NrQ w - - 0 1 illegal: No proof kernel
nn1R1b2/Q2NpR2/r1Qp1P2/1N1P2K1/Q2P4/BrP1Q1Q1/r1Bq1r2/5k1q w - - 0 1 illegal: No proof kernel
B3K1Q1/NQ2R1BP/p3nr1n/k1bq2n1/3B1P2/P1pB2r1/1nPq2R1/2B4N w - - 1 2 legal: proof: g4 c5 e4 h5 gxh5 f5 b3 b6 exf5 e5 d4 c4 dxe5 c3 Bg2 Ba6 Bf1 Bc4 bxc4 Qc8 Bf4 Qc7 Bc1 Qd8 Ke2 g5 Ke3 d5 Kd4 Kd7 h4 Kc6 f4 a6 f6 g4 e6 g3 Ke5 d4 c5 g2 f7 b5 e7 d3 Ke6 b4 e8B+ Kc7 h6 b3 h7 b2 h5 d2 h6 Ra7 c6 Kb6 c7 Nc6 c8Q Qc7 Qg4 d1N Ne2 g1N Ng3 Nge7 Rh2 Nh3 Bd3 Qb7 Na3 b1Q Rg2 Na5 Nh1 Qb2 Bc6 Nf5 Qg8 Nb3 Nb5 Bc5 f8B Ka5 a3 Ng5+ Kf6 Qa8 Qb7 Nbd4 Bg7 Nde6 Kg6 Qd8 Bd5 Ra8 Na7 Qb5 Bc6 Nb2 Bce4 Nh3 Kf7 Rc8 Bf3 Rc6 Rb1 Qd4 Ke8 Nhg5 Bfe4 Qe3 Bd5 Qd2 Bf3 Nc4 Rb4 Nb2 Re4 Ned4 Re7 Rf6+ Qd7 Nde6 Ba8 Qc4 Qb7 Qd4 Qf8 Rg8 h8B Qd5 h7 Rh6 Bd4 Rf6 Bg7 Nh6 Bh8 Rgg6 Bg7 Nh3 Qf7 Rg3 Qg8 Nhg5
3R2B1/Q2bPKp1/1r2PpP1/2B2Nr1/PrqR2r1/QpRN3k/3RR2b/6n1 w - - 0 1 illegal: No proof kernel
6qR/1p1pP1B1/2Bb3N/PPR5/2BQ2nB/r1QPKp2/1r2B1kp/b1r4N w - - 1 2 illegal: No proof kernel forced: wxLB
1nn2bQ1/k2Bqr2/N1p2R2/RKR1PR1P/3b1p2/r2r4/R1P1nP2/BN1b2Q1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 Kd2 a5 Kd3 d5 e4 Kd7 b4 f5 h4 g5 h6 a4 h7 d4 Kc4 d3 e6+ Kd6 e5+ Ke7 b6 g4 h5 d2 b7 a3 b5 g3 b6 f4 Ra2 g2 Kb5 Na6 b8R Bb7 Ne2 g1R Nd4 Qd6 Bb2 Rg3 Nb3 Rd3 Ba1 Bf3 b7 Ra7 Ra8 Nb8 Rg1 Kd8 Rg5 Ne7 Rf5 Nc8 Nc5 Qe7 Bh3 Ra6 Qe1 d1N Qg1 Rg8 h8Q Rg7 Qg8 Rf7 Rf6 Ra7 Na6 Nc3+ Ka5 Ne2 Kb5 Nc1 Bf5 Bd1 Bg4 Ne2 Rf5 Qd6 e7+ Kd7 e8R Qe7 Kc4 Kc6 Rf6+ Qd6 Bd7+ Kb6 Rf5 Qe7 Rd8 Bg7 Rf8 Bh6 Nb4 Ra4 Ra5 Bg7 Rc5 Ka7 Kb5 Bh6 Na6 Bg7 Rb2 a2 Rf6 Raa3 Rf5 Nc6 b8R Bh6 Rb6 Nb8 Rbf6 Bg7 Rb4 Bh6 Ra4 Bg7 Ra5 Bh6 Bc3 a1B Bd4 Bb2 Re8 Bf8 Rd8 Bc1 Ba1 Bb2 Re8 Qd6 Ree6 Qe7 Rd6 Bc3 Rd4 Bb2 Rb4 Bc3 Rb2 Bd4 Ra2 c6+
5rK1/b4p1N/P2B2Np/nPB1rPR1/1Bb5/3Q1Bn1/2qqbR1P/2n1k1BQ w - - 0 1 illegal: No possible last move
K1n2bQ1/b3N1Q1/3pB1q1/3rR1rp/1RQ5/1NPP4/brPQ1BkP/1Q2qn2 w - - 0 1 illegal: No proof kernel
3RBbbN/Rp2B1P1/4B3/pQ2qr1K/nP6/n2NBP2/P1qq2Q1/1r1k1Bb1 w - - 0 1 illegal: No possible last move
k2r4/rb3QQ1/p2b2R1/PQ1NR1p1/nP2K1B1/Bn2q1Pb/2P3rQ/2r1N1Q1 w - - 0 1 illegal: No proof kernel
r6b/1KN1q1r1/1qBR1p2/k2nB2n/b1QNpP1P/Q2q4/RQq1PQP1/1Q6 w - - 0 1 illegal: Other
1nQn1K2/1p2BQnN/1PR1q1B1/kr1p1R1q/b5n1/1P2bR2/3P3P/rR2RN2 w - - 0 1 illegal: No proof kernel
4nQ2/1n2r1p1/pQ3n1P/PpQb1bPN/1P2bBB1/2rqK3/3Q1Nk1/Q1RR4 w - - 1 3 illegal: No possible last move
2Kbn1b1/pN1Br2R/7N/P1P1Nn1p/1kq2pn1/3Q3P/RB2P2b/NQ1r1N2 w - - 0 1 illegal: No proof kernel
Qb2B2q/Q1N1p1Nk/PN3pRN/2rN1Pp1/r3R1bn/2B1P2K/1b2r1P1/1n6 w - - 2 3 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 h4 Qd6 h5 Qg6 hxg6 Ra8 d4 h5 f4 b5 Kf2 c5 Kg3 b4 a4 b3 f5 b2 g7 h4+ Kh3 c4 e3 c3 d6 c2 a6 Rh5 a5 Bb7 d5 Nd7 a7 Bc6 a6 Rc8 a8Q Ngf6 g8N Bg7 Nh6 Kf8 Ra4 Ne5 d7 Ng6 d8N Ne4 d6 Nc3 d7 Bf3 Bd2 c1B Bb5 Be5 Ne2 Kg7 Ne6+ Kh7 d8N f6 Be8 Bb8 N2f4 Rc5 Na3 b1R Nc7 Rb2 Nde6 Nb1 Bc3 Re2 Nc4 Bb2 Qd7 Bg4+ Kh2 h3 Nfd5 Ba7 Ncb6 Bb8 Ng7 Rh4 Kg3 h2 Rd4 Bf3 Re4 Rg4+ Kh3 Nh4 Nb5 Rf4 Qda7 Rg4 Nbc7 Rf4 Re6 Ra4 Re4 Bg4+ Kg3 Nf3 Nf7 Kg8 Rg1 h1Q Re1 Qh7 Rh1 Rcc4 Rh6 Rc5 Rg6 Nh4 Nh6+ Kh8 Kh2 Qg8 Kg3 Kh7 Kh2 Qh8 Kg3 Bf3 Kh3 Bg4+
B1N5/N2N1NK1/bQpnpnQq/1rp1P3/2P2RR1/1rb2PB1/3N1P1q/k3r3 w - - 0 1 illegal: Other
3Bk1q1/pB2p3/rp1nP3/R1r1PnQb/KN6/R2R3P/P3p2Q/1RNRb2r w - - 0 1 illegal: Other
4B3/1b3NnP/3rP1Qn/4R1N1/2B2PBn/KQq5/b1Nk1B1P/3rR1b1 w - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 h4 b4 h3 gxh3 Ba6 h4 Bb7 h5 Bc8 e3 a5 bxa5 f5 Qe2 f4 Qf3 Qc7 Qd1 Qd8 exf4 e5 f3 e4 fxe4 Kf7 Ne2 Ke7 Ng1 Ke8 Kd2 Kf7 Kc3 Kf6 Kb2 d5 c4 g5 b6 d4 c6 d3 c5 g4 b7 d2 a6 g3 a7 g2 h6 Qd7 h7 Kg6 e5 Kf5 c7 Ke4 c6 Ke3 Qh5 Qd5 Ra5 Be6 c8N Nf6 c7 Ne8 Qg6 Qc4 Nh3 g1N Ng5 Nc6 b8Q Nd4 Na3 Nf5 Nd6 Nh6 c8B Ng7 Ndf7 Nf3 Qb3+ Qc3+ Ka2 Bd5 Bg4 Bb7 e6 Bc5 Bc4 Rad8 a8B Rd6 Rb5 Nh4 Re1+ Kf2 Ra5 d1B Nc2 Rhd8 Ba3 Bb6 Rae5 Bdf3 Bb4 Bfd5 Ka3 Be3 Re2+ Kf1 Bc5 Bg1 Bf2 R8d7 Bb5 Bc4 Bc6 Rd1 R2e3 R7d6 Be8 Bh1 Bd5 Be4 Rf3 Ke2 Re3+ Kd2 Re1 Bh1 Be4 Bd5 Bd3 Bhe4 Bc4 Bb7 Nd4 Bb1 Nc2 Ba2
K1B2N1r/n2R2BB/Nnrr1Qpp/5PR1/4Q3/2PnP3/1n2k2P/4BR2 w - - 0 1 legal: proof: d4 c5 a4 e5 dxe5 f5 g4 b5 axb5 c4 b3 Qb6 e4 Qe3+ fxe3 f4 Bxc4 Ba3 Bf1 Bb7 c3 Bd5 Bxa3 Be6 Bc1 Bf5 gxf5 Ke7 Ra2 Kf8 Ra1 Ke8 Kd2 Ke7 Kd3 a5 Kc4 d5+ Kc5 f3 Kb6 h6 Kb7 d4 b4 f2 e6 Kd6 e5+ Kd5 e7 Ke4 e8B d3 e6 a4 b6 a3 b5 a2 e7 d2 Nh3 Ra6 Na3 Nd7 Nc2 Ra3 Nb4 Ra5 Ng5+ Ke5 Rg1 Ndf6 Bg6 Rh7 e8Q+ Ne7 Na6 Ra4 Ka8 Rh8 b7 Rc4 b8B+ Kd5 b6 Rc6 b7 Nh5 Nh7 Ke4 Be5 Nf4 b8R Nc8 Nf8 Na7 Bh7 g6 Rd8 Nd3 Rg5 Rd6 Be2 f1N Rd7 Rc6 Qb3 d1N Bd2 N1b2 Be1 Nd2 Qbe6 Ndc4 Qf6 Rd6 Bf1 Kf3 Bg2+ Ke2 Bb7 Rc6 Bc8 Rd6 Rc1 a1R Bd4 Ra3 Qe4 Rc6 Qf7 Rb3 Bg7 Rbb6 Qf6 Rd6 Bg3 Rbc6 Rf1 Nb4 Bf2 N4d3 Be1 Nb6+
B1K2Q2/PN2P1QP/6Qq/P2N2Q1/4Rq1n/3k1np1/3B2Rp/n3qq1N w - - 0 1 legal: proof: e4 b5 h4 d5 f3 a5 Bd3 g5 Na3 d4 Nb1 g4 Be2 Bh6 Bf1 Bg5 hxg5 Ra6 Bd3 Rd6 Bf1 Rd5 exd5 Bf5 Nc3 Be6 Nb1 Bc8 b4 e5 bxa5 h5 c3 e4 cxd4 e3 g3 h4 Ne2 h3 Ng1 Rh4 gxh4 Bf5 Qe2 Qf6 Qd1 Be4 fxe4 Qd8 Ke2 Ke7 Kd3 Kd6 a4 c5 e5+ Ke7 Ke4 g3 Kf5 c4 e6 Kd6 g6 e2 h5 e1Q h6 f6 h7 c3 g7 c2 a6 h2 a7 b4 a5 b3 Ra2 b2 Bg2 Qe3 Nc3 b1Q Qh5 Nc6 Nh3 Nb4 Qg6 Nc6 Re1 Qbb8 Nf2 Qe8 Nh1 Qh6 Re4 Kc7 d6+ Kb7 d7 Ka6 d8N Qb4 d5 Qa3 d4 Qa4 d6 Qf8 d5 Qb4 d7 Ne5 d6 Nf3 Bd2 c1N Nb7 Nb3 d8Q Na1 Nd5 Kb5 d7 Qf7 Qf8 Ne7+ Kg4 Qb1 d8Q Nf5 g8Q Qe1 Qg8g7 N5h4 Rc2 Qc7 e7 Qe5 Qb8 Qd4 Qe5 Qb4 Qeg5 f5+ Kf4 Qd4 Rb2+ Kc4 Ra2 Kd3 Rc2 Ng1 Bf3 Qde3+ Ke5 f4 Kd6 Q3f2 Bg2 f3 Kc7 Qfe3 Kc8 f2 Rc6 f1Q Rf6 Qd1 Rf2 Qf4 Bf3 Qb1 Rg2 Qbe1 Re5+ Qfe4 Ne3 Kd4 Nd6 Qf4 Ba8 Qf6 Nb7 Ngf3 Re4+ Kd3 Nd5 Qf4
r3R2N/2pPNN2/3P3P/kB2NKQp/2q1pB2/nn1q1P2/4QB2/R3n3 w - - 0 1 legal: proof: c4 a5 b4 f5 a4 d5 cxd5 b5 axb5 a4 e4 Bd7 exf5 Ra5 bxa5 Bc8 g4 h5 h3 g6 g5 Bh6 gxh6 Ba6 Ba3 Bb7 Bc1 Bc8 b6 g5 Rh2 g4 Bd3 g3 Bf1 Ba6 Rh1 Be2 Bg2 Qd7 Bf1 Bg4 hxg4 Qd8 Ke2 Kd7 Kd3 e5 Ke4 a3 d4 g2 d6 Kc6 a6 a2 f6 Nd7 a7 Kb7 g5 Qe7 d5 Rh7 f7 Nf8 g6 Rg7 f3 Nf6+ Kf5 Qd8 d7 Qe7 d6 Ng4 Nh3 g1Q Ng5 Qe3 Nd2 Nh7 f8N Qg1 Qe2 Nhf6 Nf7 Nd5 Nc4 Ka6 a8Q+ Kb5 b7 Rg8 b8B Qc5 g7 Nb4 Qd5 Nd3 Bf4 Ne1 Ba7 e4 Rg1 Ne5 Ng6 Ra8 g8N Qd8 Ngh8 Qc8 Rg2 Qa6 Ne7 Qa3 Qdd2 Qd3 Rg8 Ka4 Re8 Qcd5 Rb1 a1N Bf2 Nb3 Ra1+ Kb5 Bh2 Q5d4 Qg5 Q4c3 Bf4 Qcc2 Na5 Nc4 Nac6 Na3 Nce5 Ka5 Qd2+ Qdc3 Bb5 Qd3 Qe2 Qcc4
k2NB1N1/7K/nP1BRq1R/1br2PQb/1N2q1PP/R3bN1q/r7/2n2Q2 w - - 0 1 legal: proof: e4 b5 a4 f5 axb5 d5 exf5 d4 h3 d3 cxd3 Nh6 d4 Ng8 d5 Ba6 Qe2 Bb7 Qd1 Bc8 g3 g5 Qf3 h5 Qd1 g4 hxg4 Be6 Ra2 Bd7 Ra1 Bc8 Bg2 h4 Bf1 h3 Qf3 Qd6 Qe2 Qf6 Qd1 Qh4 gxh4 Kd8 Qe2 Kd7 Qd1 Ke8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 d4 Kb7 f4 e5 b4 a5 f6 c4 f7 c3 b6 a4 b5 c2 d6 h2 d5 a3 d7 a2 Kf5 e4 Kg6 e3 d8Q e2 d6 e1Q f5 Ra5 d7 Bb4 f8R Bc5 Bf4 c1Q Nd2 Na6 Qg5 Be3 d8N+ Ka8 Bd6 Qa3 Rf6 Nh6 Ne4 Be6 Nf3 Nf7 Be2 Re8 Kh7 Ne5 Rh6 Bf7 Nf6 Nd3 Ng8 Bh5 Qb1 Qeb4 Re1 h1B Qc1 Qe4 b7+ Ka7 b8N Ka8 b6 Rc5 Qb1 Nc1 Bb5 Bg2 Ba4 Bf1 Nbc6 Bb5 Nb4 Ree5 Qd3 Rc2 Qf1 Rec5 Rb1 a1Q Rb3 Qf6 Rd3 Bc4 Be8 Bb5 Rc3 Ra2 Rb3 Qab2 Ra3 Qh2 Re2 Qh3 Re1 Bf4 Re2 Qb7+ Re7 Qe4 Re6 Be3
1Q1rBk2/3b1N2/4B1QR/1R2PbPP/3n1Pq1/5Nb1/Nn1BN2b/1K2r1n1 w - - 0 1 illegal: No possible last move
r2R1Q2/1BbR2rn/1NP3N1/2rr1BKQ/3B4/3P3q/2nPQP2/qkBb4 w - - 0 1 legal: proof: e4 d5 a4 b5 axb5 c5 h4 g5 hxg5 f5 exf5 d4 b4 d3 bxc5 Qb6 cxd3 Qd8 Ke2 Kd7 Ke3 a5 Kf4 e5+ Kg4 a4 g6 e4 g7 e3 f6 h5+ Kg5 h4 g4 h3 b6 Kc6 b7 Kb5 Qe2 Kb4 Nf3 Kb3 Nc3 Kc2 Ne5 a3 Nd5 h2 Ng6 a2 Bg2 Bd6 Nb6 Qd7 f7 Bc7 f8Q Nc6 b8B Nf6 g8B Rh7 Be6 Nd4 Bb7 Rg7 Bf5 Qe6 Rg1 h1R c6 Rhh7 Rb1 a1Q Ba7 Rh8 Qf7 Rd8 Rb5 Rd6 Rd5 Kb1 Rg2 Rd8 Rd7 Nc2 Qe8 Qd6 Rh2 Qg3 Rh8 Qh3 Qe5 Re8 Qh2 Re5 Rhd8 Rd5 Qh1 Qf3 Qh5 Qh3 Na4 Rc5 Bb6 Rd5 Bd4 Rc5 Nb6 Rd5 Qe1 e2 Qf1 e1R Qe2 Rc5 Qf3 Re4 Rd5 Be6 Kh6 Nd7 g5 Rc4 Nf4 Rc5 g6 Re7 g7 Na3 g8Q Re5 Rf8 Nf6 Qe2 Rg7 Rd7 Bb3 Ng6 Bd1 Kg5 Red5 Rfd8 Nc2 Qf8 Nh7+
8/3R1P2/3PN1R1/2PK1N1q/rkN5/qP1qQ1Qq/1B1bbn1r/2N2QqB w - - 0 1 legal: proof: g4 b5 e4 f5 exf5 h5 gxh5 b4 c3 b3 axb3 c5 Ba6 d5 Bf1 Nc6 Qc2 Nd4 Qd1 Ne2 c4 Nc3 cxd5 c4 Ra3 Ne2 Ra1 c3 Nf3 c2 Ng1 Nc3 bxc3 Qa5 Nh3 Qb6 Ng1 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kb6 h4 a5 f4 e5 c4 g5 d6 g4 f6 g3 h6 g2 d5 Kc5 h5 a4 f5 a3 d7 a2 d6 Ra7 h7 Nh6 f7 Rg8 h8Q Rg6 f6 Rg3 Nd2 Be7 f8Q Kb4 f7 Rc7 c5 Rg8 Ne2 g1Q Kd5 e4 Qe8 e3 Bg2 Ra7 Nc4 Ba6 Qe5 Rh8 Qf1 Qc8 d8N Ng4 h6 Nf2 h7 Qh3 Qg3 Bg5 Bb2 c1Q Ne6 Qc2 Nc1 e2 Qe7 Qgh2 Rg1 e1Q Bh1 Bd2 Qeg5 Bb5 Q5e3 Ra4 Rg2 Rha8 h8N Qd3+ Nd4 Rc8 Ng6 Rh8 Nf8 Qee2 Ne6 Qeh5+ Qge5 Qg1 Rg6 Qc2 Nf5 Rh6 Rb1 a1Q Q5g3 Qa3 Ra1 Qd3+ Ke5 Q5g4 Nfg7 Qhh4 Qgg2 Qde2 Bd4 Qb2 Na5 Ra3 Kd5 Qhg5+ Nf5 Rh2 Ra2 Q5h5 Qgg3 Qgh3 Bf6 Bd3 Nc4 Ra7 Ra5 Qa3 Bb2 Ra8 Ra7 Qef3+ Qe4 Be2 Rd7 Qe3 Qef4 Ra4 Qh6 Qc3 Qhe3 Qd3+
1kq2N1b/3Q4/r3P2R/qB2rP1B/2N1n1Q1/2nP1PR1/Nn2qN1q/BK6 w - - 0 1 legal: proof: e4 e5 a4 d5 h4 f5 exf5 b5 axb5 g5 hxg5 Ke7 c4 Kf7 cxd5 Be6 dxe6+ Ke8 g4 a5 b4 h5 f3 c5 b6 e4 b7 a4 g6 c4 g7 a3 b5 h4 g5 h3 b6 h2 g6 c3 Bb2 e3 Bb5+ Nc6 b8N a2 b7 e2 Na6 c2 b8N c1N Nb4 Nf6 g8Q Ne4 g7 Rh4 Nh3 Ra6 Nd7 Ne7 Na3 Qc8 Nf2 Kd8 Nc4 Kc7 Rb1 a1Q Na2 Nd5 d3 Ndc3 Qa4 Nb3 Rd1 Be7 Nf8 Kb8 Rg1 Rg4 Rg3 Nbc5 Qf7 Rf4 g8B Bf6 Qd7 Bh8 Bf7 Rg4 Bh5 h1Q+ Rg1 Qh3 Rg3 Qh2 Qb4 N5a4 Rb1 Nec5 Kd2 e1Q+ Kc2 Re4 Rc1 Qe3 Rh1 Qae1 Ba1 Nb2 Qa4 Re5 Qb4 N5e4 Qa4 Ncd1 Kb1 Q3e2 Na5 Ng5 Qg4 Ne4 Nc4 Qa5 Be8 Qg1 Rh6 Qh2 Bh5 Ndc3+
4Q3/1n1q3q/p6R/B1PkN3/bQrPn1bN/1P1PKBN1/1R1n4/1B1Nr3 w - - 0 1 legal: proof: h4 b5 e4 d5 c3 c5 Qh5 g5 hxg5 d4 Qg4 f5 exf5 b4 Qd1 b3 axb3 c4 Ra5 Bg7 Ra1 Be5 Ra3 Bd6 Ra1 Bb4 cxd4 c3 Nf3 c2 Ng1 Bc3 bxc3 Qd6 Qg4 Qd5 Qd1 Qd8 Ke2 Kf7 g4 h5 f4 e5 g6+ Kf6 c4 a6 g7 e4 c5 h4 g5+ Kf7 f6 Ke6 f7 h3 f8N+ Kd5 f5 h2 g6 e3 f6 Qb6 f7 Rh4 Ra2 Ne7 g8Q Qc6 g7 Re4 Nd7 Qc7 Bg2 Nec6 Ne5 Nd8 Bf3 Bg4 Qe1 Nb7 Qe8 Nd7 g8B Rb8 Bh7 Nf6 f8N Qd7 Bb2 c1Q Bc3 Qb2 Nfg6 Qc2 Rb2 Qd3+ Kd1 e2+ Kc1 Nd6 Ba5 Rb4 Nh4 Nb7 Bg6 Qe3 Kc2 Qh6 Kd3 Rc4 Bf5 Qhg7 Bh7 Qge7 Nc3+ Ke6 Nd1 Kd5 Qf2 Qf7 Qe3 e1N+ Ke2 Qfe7 Kf2 Qg7 Qc3 Qh8 Bg6 Qhg7 Ne2 Qh7 Rf1 h1B Ng3 Bg2 Rh1 Bf1 Qb4 Be2 Bg2 Nf3 Rh2 Re3 Bb1 Bd3 Rh3 Re1 Rh2 Be2 Ke3 Ne4 d3 Nfd2 Bf3 Bh5 Qf8 Be8 Qh8 Qdf7 Rh3 Ba4 Qe8 Qc7 Ng2 Qc6 Rh6 Qcd7 Nh4 Rh1 Bg2 Bg4 Bf3 Re1+
1K3r1n/2P3RN/4B1Pk/2P1BR1r/n2bqb2/rpQ1qBPN/4N3/4NQ2 w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 f5 dxc5 g5 f4 b6 fxg5 f4 h3 f3 exf3 Ba6 f4 Be2 f5 Bg4 hxg4 Bh6 Ba6 Bg7 Bf1 Bf8 Kd2 Kf7 Ke3 Kg7 Kd4 h5 Ke5 d5 a4 e6 c4 h4 f6+ Kg6 f7 d4 c6 d3 g3 d2 a6 b5 c5 b4 a5 b3 a7 h3 a6 h2 Na3 Bh6 f8N+ Kg7 g6 Rh7 g5 Qa5 Kd6 e5 Ne2 e4 Nc2 e3 Bg2 Qb4 Kc7 Qh4 Qf1 d1Q Bf3 Qh3 Bb2+ Qd4 Ne1 Rh8 Nh7 Qf6 Be5 Qg2 Ra4 Ne7 Rf4 Qg1 Rf5 Rf8 Kb7 Nd7 c7 Rad8 a8Q Nb6 a7 Na4 Qc8 Qg2 Qd7 Ra8 Qd4 Qf2 Qc3 Qg1 Nf4 e2 Nh3 Qg2 Bf4 Qd4 Be5+ Kg8 g7 Qe3 Nf6+ Kf7 g8B+ Kg7 Be6 Ng6 Nh7+ Rf6 Ng1 Nh8 g6 Bf4 Nh3 Rf8 a8N Kh6 Nb6 Ra8 Be4 Rff8 Nd5 Ra6 Bf3 Raa8 Rg1 h1R Rf7 Rh2 Rg7 Qh1 Rg2 Ra5 Rf2 Ra6 Ng1 Rh5 Nh3 Raa8 Nb4 Qg2 Nc6 Ra6 Nd4 Ra5 Nd3 e1B Ne2 Bd2 Ne1 Bc1 Bfd5 Qge4 Bc6 Bb2 Rf3 Bg5 Rf5 Bf4 Bcd5 Nb6 Bc6 Ra3 Bcd5 Na4 Bc6 Q4d3 Bf3 Qde4+ Ka7 Rf7 Kb8 Ba1 Qb4 Bd4 Qc3 Rf8+
NbB4r/1rP1bQBQ/KPPR1Rp1/1q2N2n/8/b4QQP/2k2q2/1n5B w - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Na6 b4 Nb8 b5 Ba6 Bg2 Bb7 Bf1 Bc8 b6 a5 b3 h5 gxh5 a4 Bb5 a3 Bf1 Ba6 Qd4 Bb5 Qd1 Ba4 bxa4 Qc8 Ke2 Qc7 Ke1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 f4 e5 c4 d5 h3 a2 a5 d4 a6 d3 c6 g6 a7 d2 c5 Nh6 f6 Nf7 f5 Rg8 h6 Rg7 h7 Ke3 h8Q e4 Qf3+ Kd4 Na3 d1Q Qg3 e3 Bb2+ Ke4 Qh7 e2 Nf3 Kd3 Ne5+ Kd2 Rg1 Nh8 f7 e1B f6 Be7 f8Q Qd5 f7 Nd7 Ka6 Qc2 Nb5 Nf6 Nc7 Nh5 Bg2 Bf2 Raf1 a1B Bh1 Be3 Qfg8 Bf4 f8Q Nf7 Rf3 Ng5 Qgf7 Rb8 a8B Ne4 Bb7 Nc3 Bc8 Nb1 Na8 Qdb3 Bd4 Bb2 Re1 Qf5 Rd1+ Kc2 Bc3 Ba3 Rd6 Bfg5 Rf1 Qf2 Qff3 Rg8 Q8f7 Rh8 Bd4 Rb7 Bb2 Bd8 Bd4 Bc7 Ba1 Bb8 c7 Bgc1 c6 Bg5 Nc4 Bgc1 Qfg2 Bg5 Bg7 Qd2 Ne5 Be7 Rff6 Qf2 Q2f3 Qb5+
q3Q1Nr/P7/B3pP1b/P2N1RNb/1R4rn/n3K1R1/1NkPQ3/B3r2q w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 h5 c4 f5 cxd5 c6 dxc6 h4 exf5 h3 gxh3 Rh7 h4 Rh6 h5 Rh8 a6 Kf7 Ke2 Kf6 h4 Ke5 f4+ Kd4 a4 g5 c7 b5 a5 e6 a7 b4 h6 g4 h7 b3 h5 b2 h6 g3 Ra3 g2 Rg3 Bd7 c8N Qc7 Nh3 g1R Na3 b1Q Nb6 Qc6 Nac4 Qa1 Nd5 Na6 Bb2+ Kc5 Ke3 Be8 Qg4 Qd1 Ba1 Ne7 Qf3 Rg8 h8Q Qb6 h7 Rg4 Ng5 Bh6 Rh4 Qb7 Nb2 Nc7 Ba6 Nb5 Qe2 Bh5 Qd8 Qc6 h8N Na3 Ng6 Qb1 Qd7 Rh8 Qd8 Qa8 Qe8 Nc8 Nge7 Nd6 Ng8 Qe1 Nc3 Kb4 Nd5+ Kb3 f6 Qb8 f5 Qa8 f7 Rd4 f8R Kc2 Re4 Rc4 Re5 Rg4 Re4 Qf1 Rb4 Qh3 Rf4 Re1 Rf7 Qh2 f6 Qh4 Rb7 Qh1 Rbb4 Nf5+ Kf2 Nh4 Rf5 Rc4 Ke3 Rg4
Nn2b3/PBP4q/q4R2/3Pr1QB/1nKBk2P/n1b1B2Q/N4R1p/3rQ3 w - - 0 1 illegal: No proof kernel
8/B2P1NPR/r4n1N/1Bb2K1Q/QP1N2pR/5B1b/r1nP1rr1/N1q3k1 w - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Qf6 f4 Qg5 fxe5 Kf7 hxg5 Ke8 Kf2 Kf7 Kg3 c5 Kf4 h5 e4 a5 b4 c4 d6 c3 e6+ Kg7 e5 c2 b6 h4 e7 h3 e8B h2 g6 Kh6 f6 Kh5 b7 Kh4 g7 a4 e6 a3 f7 a2 e7 Ra7 Nf3+ Kh5 Bb2 c1Q Nd4 Kh4 Nf5+ Kh5 Be2 Nh6 B8b5 Na6 b8Q Bb7 e8N Nc5 d7 Nb3 Na3 Nd4 Bf3 Ng8 Ned6 Nc2 Bd4 Ra6 Qe8 Nf6 Nh6 Kh4 Kf5 Kh3 Ba7 Ba8 Rb1 a1R Rb3 Be7 f8N Ra2 Ne6 Rf8 Ndf7 Bc5 Nd4 Kg3 Re3 Kf2 Ree1 Bd5 Reg1 Bc6 Rg3 Bd5 Rh3 Bc4 Rh5 Bf1 Rh4 Bh3 Qe5 Ne1 Qa4 Nc2 Rd1 h1R Re1 Rh2 Rh1 Ne1 Nac2 Rg2 Na1 Nc2 Kg6 Re8 Qh5 Re2 Kf5 Kg3 Re1 Ref2 Re8 Kh2 Rh8 Kh1 Rh7 Kg1
4nQ2/5R2/B4pnr/1NP2r1P/PBnqr1P1/1N3N1Q/R1B2k2/1q1B1b1K w - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 e5 fxe5 a4 g4 a3 bxa3 Nf6 a4 Ng8 a5 Ra7 Kf2 Ra6 Ke1 Ra8 Kd2 h5 gxh5 g5 Qe1 g4 Bg2 g3 Qd1 Bh6+ Ke1 Bf4 Bf1 g2 Qd6 Rh6 Qd1 Bg3+ hxg3 Rh8 Kf2 Ke7 c4 Ke6 a4 Kf5 e4+ Ke6 g4 b5 a6 d5 a7 d4 c6 b4 c7 d3 c5 d2 Bd3 b3 Qf1 d1R Ra2 b2 Nf3 g1N Kg2 Nh6 Bd2 Rh7 Bb4 Nh3 Nbd2 b1Q Nb3 Nd7 Bc2 Ba6 c8B Nf5 Kh2 Rb8 a8B Nf4 Qh3 Rh6 Rf1 Nd6 Kh1 Rd5 Bcb7 Be2 Ba6 Nf6 B8b7 Nfe8 Bd1 Ke7 e6 Kf6 e7 Ng6 e5+ Ke6 Bd3 Nc4 B3c2 Rc8 Rf2 Bf1 Ba6 Rb8 Nh4 Rd4 Nf3 Kd5 e6 Ra8 Kg1 Re4 Kh1 Nc7 e8N f6 Nd6 Ne8 e7 Re5 Rb2 Rf5 Nb5 Rc8 Re2 Rc6 Ra2 Re6 Re3 Qd6 Rd3+ Ke4 Rd5+ Ke3 Rd2 Qb6 Rd7 Qd8 Ra7 Qd4 Rc7 Ned6 e8Q Re4 Qf8 Kf2 Rf7 Ne8
3r4/R2q1KBQ/1R1PN1P1/2P1R3/r1q3nP/pQ3b2/N3B1n1/3qQRrk w - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 d5 a4 g5 axb5 h5 e4 h4 exd5 h3 gxh3 g4 h4 Bh6 h5 Bg5 fxg5 Qb6 Ke2 Qd6 Ke1 Qd8 Ke2 Kd7 Kd3 a5 Kd4 f5 Ke5 g3 c4 g2 h4 e6 d4 f4 g6 a4 h6 f3 h7 f2 b6 Qe7 c6+ Ke8 c7 Kd7 d6 Kc6 d5+ Kc5 b7 Nf6 d7 Nh5 d8R Qd7 d6 Nf4 Kf6 e5 Qb3 Kd4 c5 Ke4 Nf3 g1R Nd4 Nc6 b8R Ng2 Re8 Bb7 Be2 f1Q+ Bf4 Qc1 c8Q Qc4 Bh6 Ra7 Re6 Rd8 Bg7 Kf4 h8Q e4 Qc7 e3 Re5 Kg3 Ne6 Kf2 Qa5 a3 Nc3 Ra8 Re1 Kg3 Qab4 Ra4 Na2 Kf2 Qh7 Kg3 Bd3 e2 Q4c3 Ba8 Rb6 Kf3 Rb1 e1Q Be2+ Kf2 Ra6 Qd1 Ra7 Bb7 Qbc2 Ba8 Rb6 Bb7 Q2b3 Ba8 Re3 Ne5 Qc1 Bf3 Re4 Nf7 Re5 Nh6 Qcb1 Qc6 Qc1 Ng4+ Kf7 Kg3 Qg5 Qd7+ Qe7 Re1 Rf1 Kh2 Rf2 Rg1 Rf1 Qc6 Qb7 Qc8 Qe4 Kh1 Qee3 Qc6 Qec3 Qc8 Qe1 Qd7+
N2r4/1nq3KP/r1B1R1QB/PQQ2rN1/1R1p3P/1rPb2k1/3B2B1/1br5 w - - 0 1 legal: proof: e4 c5 g4 a5 b4 h5 bxa5 c4 gxh5 c3 dxc3 Nc6 c4 Nb8 c5 Qb6 Qe2 Qc7 Qd1 Qd8 f4 d5 e5 e6 Bd3 Bd6 Bf1 Nd7 exd6 e5 Be3 e4 Bc1 Ne5 fxe5 Bg4 Nh3 Be6 Ng1 Bc8 Kf2 Kd7 Ke3 Ke6 Kd4 Kf5 a4 g5 h4 b5 c3 e3 d7 Kf4 c6 f5 e6 b4 e7 b3 e8Q g4 h6 b2 h7 g3 a6 g2 a5 Rb8 a7 Qe7 a8B Kg3 d8B f4 c7 f3 Qc2 e2 Bd2 e1R Na3 b1B Qb5 f2 Bc6 Rb6 Nf3 g1R Bg2 f1R Qg6+ Qg5 Nc4 Ba6 c8Q Rc1 Ra4 Nh6 Rb4 Nf5+ Ke5 d4 Rh2 Qg4 Kf6 Nd6 Kg7 Nb7 B8g5 Rd8 Bh6 Rh1 Ng5 Rf5 Qc7+ Qf4 Qe7 Rhe1 Qec5 Re6 Rh1 Qb8 Re1 Red6 Re6 Qc8 Qa4 Rb5 Nb6 Qc7+ Re7 Re6 Na8 Rb6 Qb3 Bad3 Qa4 Ra6 Qab5 Re2 Be3 Rb2 Bd2 Qb6 Re2 Rb3 Re6 Qc7+
3r2kN/BbK3q1/3B1nnP/PN1R4/5n1Q/1bRb1Pb1/p1P2QB1/4QQ2 w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 c4 a4 c3 dxc3 Rh6 c4 Rh7 c5 Rh8 b3 b5 Ba3 a5 Bc1 Qb6 Ne2 b4 Ng1 Qb5 axb5 a4 Bh6 a3 Bc1 Ra4 bxa4 Ba6 Qd2 Bb7 Qd1 Bc8 Kd2 Kf7 Kd3 d5 Kd4 g5 Ke5 d4 h4 d3 c6 d2 a5 g4 c7 e6 h6 g3 h7 g2 f6 b3 h5 b2 b6 Be7 b7 Kf8 f7 Kg7 Nh3 g1Q Nf4 Bc5 Bg2 Be3 Kd6 e5 Nc3 b1B Rh3 e4 Nb5 Ba2 Qf1 d1B Ng6 Nc6 b8B Nce7 Ba7 Bb7 c8Q Bb3 Qe6 a2 Kc7 Be2 Ba3 Nf6 Rd1 Rd8 Nh8 Bf4+ Bd6 e3 Rd5 Bd3 Qe5 e2 Re3 Be4 Rc3 e1N f3 Bg6 Qee2 Nd3 Qee1 Bg3 Qef2 Ne4 Q2e1 Nf4 h6+ Kf6 f8Q+ Ke6 Qef2 Nf6 Qe8 Bd3 Qh5 Neg6 Qh4 Bf5 Nf7 Bd3 h8Q Qh1 Qh7 Qh3 Nh8 Qg4 Be5 Qg5 Qg8+ Ke7 Qe6+ Kf8 Qe7+ Kg8 Bd6 Qf5 Qe4 Qe5 Qee1 Qe7+ Kb6 Qf8 Kc7 Qg7+
n1R5/P1QQRqk1/1NRP4/3n4/2K4N/1P1b4/1PBBprn1/BBr2rr1 w - - 0 1 illegal: Other
1Qbq4/1R1n2QN/5KPr/4P1Q1/n1Nnp3/q2B1P1k/R1rB1P1B/2n3B1 w - - 0 1 illegal: No possible last move
3N1Br1/5R2/1PB1P1r1/2NPQq2/2KB2p1/k2bQPqR/1r2n3/1B1bQ2r w - - 0 1 legal: proof: c4 b5 h4 g5 a4 f5 axb5 d5 cxd5 e5 Qa4 e4 Kd1 g4 Kc2 Be7 f3 Bg5 hxg5 f4 fxe4 f3 e5 f2 Kd3 Nc6 Qd1 Nd4 Kc3 Nf3 gxf3 Kd7 Kc2 Ke8 Kb3 Kd7 e4 a5 d4 c5 g6 h5 d6 h4 e6+ Ke8 b6 h3 d5 a4+ Kc4 a3 b4 a2 b5 h2 d7+ Ke7 e5 Rh4 g7 Rb8 b7 Rh7 b6 Qf8 Nd2 Nf6 g8B Ne4 Qe1 Nc3 Nh3 Rh6 Nf4 Qf5 Nb3 Ne2 Bh7 Rg6 Ba3 Ra8 Rc1 a1R b8Q Ra2 Rc3 Rb2 d8B+ Ke8 e7 Bd7 Rc2 Ba4 Ne6 Kd7 Rc3 Qg5 Bc7 Qf5 Qh8 Rag8 Nd8 Nd4 Bd3 f1B Bd6 Ne2 e8Q+ Kc8 Bf8 Kb8 Rg1 h1R Rg3 Kc8 Rh3 Kb8 Nf7+ Kb7 Nd8+ Ka6 Qe7 Qf6 e6 Qg5 Qe5 Qf5 Na5 Bd1 Nab7 R6g7 Qg5 Rg6 Nd6 Ka5 Qge3 Ka4 Ne4 Rc2 Bc1 Rb2 Rc2 Ka3 Bd2 Qf4 Bc3 Qg3 Bd4 Nf4 Kc3 Bfe2 Bb5 Bd3 Bh6 c4 Bc6 Bf1 Nc5 Ne2+ Kd2+ c3+ Kd3 R8g7 Rc1 Rg8 Bg7 c2 Bf8 Rf6 Be4 Rfg6 Bf5 Ra2 Ra1 c1Q Be4 Qb1+ Kc4+ Nc3+ Bd3 Qc2 Rc1 Qb1 Rc2 Rb2 Rch2 Ne2 Rh7 Ra2 R2h3 Rb2 Rf7 Qa1 Qg1 Qb1 Bf5 Qe4 Qgf2 Qef4 Bb1 Qf5 Qfe3+ Nc3+ Bd3 Bfe2 Bg7 Bc2 Bf8 Bed1 Be2 Be4 Bd3 Ne2 Bb1+ Bd3+
B2qR3/3q2PQ/BrQ3Nn/1Rn1Kp2/8/2kP1N1P/1qb1P2q/RrBR4 w - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 f4 Bf5 fxe5 Bc8 Nc3 g5 Nb1 h4 Nc3 g4 Nb1 h3 gxh3 Qd6 Ra2 Qf6 Ra1 Qd8 Na3 g3 Qb3 g2 Nb1 Bh6 Qc2 Bf4 Qd1 Bg3+ hxg3 Rh6 Qb3 Rh5 Qd1 Rh8 Kf2 Ke7 Ke3 a5 Kf4 f5 b4 c5 b6 c4 b7 c3 d6+ Ke6 d7 Kd5 b5 Kd4 e6 a4 g4 a3 g5 c2 b6 a2 g6 Na6 b8Q Nc5 g7 Ne7 b7 Na4 d3 Ra5 Na3 Ra6 Nf3+ Kc3 Nc4 g1Q Nce5 Qf2 Ng6 Qa7 Ke5 Rf8 Bg2 Ng8 e7 Nh6 e8B Nc5 Qc7 Rb6 b8R Rff6 Qg1 Rb1 Rb5 Rb6 Qc6 Ba6 Qf2 Bc8 Qh4 Qb7 Be3 c1Q Rd1 Qb2 Bc1 Qa7 Bf7 Ba6 Bc4 Qb7 Ra5 Bb5 Bh1 Ba4 Ba6 Bc2 Rb5 Qg8 d8R Qd7 Re8 Qh8 Re7 Qhd8 Qh5 Qb4 Bg2 Qg4 Bh1 Qg1 Re8 Qh2+ Nf4 Rb3 Qc7 Rc6 Ng1 Nb7 Rb1 Ng8 Qh7 a1Q Bg2 Qa2 Ra1 Nh6 Bd5 Qa3 Nf3 Nc5 Qb6 Rg6 Ba8 Rb1 Qb7 Rb6 Qc6 Qh1 Ng6 Qb2 Qd6 Qg2 Qc6 Qh2+
1b5q/1k4p1/1n2Nq1P/bN1P4/bQ1B2b1/KP1R1Q2/1NP1BBN1/rr2R3 w - - 0 1 legal: proof: d4 b5 f4 d5 a4 c5 axb5 h5 g4 e5 gxh5 a5 e3 Nc6 dxc5 d4 e4 Ra7 Qf3 Rd7 Qd1 Rd5 exd5 e4 Nf3 Nge7 Ng1 Ne5 fxe5 Ng8 Kd2 Kd7 h4 Kc7 b3 f5 c6 d3 Kc3 f4 Kb2 f3 b6+ Kb8 h6 a4 h7 f2 c7+ Ka8 h5 e3 h6 e2 b7+ Ka7 b8B+ Ka6 e6 e1B e7 Bg4 c8N Kb7 e8N d2 Qf3 d1Q Rh3 Qd3 Nc7 Qd2 Nd6+ Kb6 Ne2 Qd4+ Nbc3 Ne7 Nf4 Qf6 Ka3 Nc8 Nd1 Ba5 Be2 f1B Nb2 Be7 Rb1 Rf8 h8Q Rf7 Qh7 Qh8 Qhe4 Bd8 Ndb5 Kb7 Ba7 Nb6 Nce6 Bc7 Qd4 Bb8 Be3 Re7 Qb4 Rf7 Ka2 a3 Re1 Rf8 Bd4 Rf7 Ka1 a2 Ng2 Rf8 Bd1 Bd3 Be2 Bg6 Bf2 Be8 Rg3 Na4 Bad4 Nb6 Nd3 Bc6 Kb2 Re8 Ka3 Re7 Na7 Ba4 Nb2 Re8 Nb5 Re7 Ng5 Re3 Rh3 Rd3 Ne6 Rd1 Qe4 Ra1 Rd3 Rb1 Qf3 a1R#
2B1K2R/1R1nqP2/kBQN1Q2/nRp5/3PQq2/1PPqb3/r2QN1qb/8 w - - 0 1 illegal: No possible last move
4b3/r1nn3K/3rP3/3QN3/b2n1R1N/N2n1B1R/Q2PpBPP/nBk2N2 w - - 0 1 illegal: No proof kernel
NB4r1/qPB3P1/NP3pRQ/nr6/1B1Rr3/2rP1k2/Q2Q1rq1/n2K1B2 w - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 g5 Bf5 axb3 Na6 b4 Bc8 b5 Nb8 h3 f6 h4 Be6 Ra2 Kd7 Ra1 Bf7 g6 Bc5 gxf7 g5 Ra5 g4 Ra4 Be3 Ra1 Bg5 hxg5 Qc8 Nh3 Qf8 Ng1 Qd8 f8B h5 b4 a5 e4 c5 g6 c4 g7 g3 e6+ Kc7 d3 a4 e7 Kd6 e8Q+ Qe7 b6 Ke5 d6 a3 b5 c3 d7 c2 d8B a2 b7 g2 b6 h4 Nc3 h3 Qg6 h2 Na4 Rh7 Nh3 g1Q Nf4 Nh6 Ne6 Ng4 Qh6 Qa3 Nac5 Ne3 Qd2 Qa7 Na6 Nc6 Nec7 Na5 Bb4 Qg2 Rg1 h1R Bca3 Rc8 Na8 Rh5 Bc7+ Kd4 e5 Rg8 e6 Rb5 Rc1 a1R e7 Ra2 e8Q Rhh8 Qc6 Re8 Bbd6 Re4 Bab4 Rg8 Qe8 Rb2 Qe6 Ra2 Ra1 Rb2 Qa2 c1R+ Qd1 Rcc5 Qd2 Nc2+ Kd1 Rc3 Rc1 Na1 Rc2 Qf2 Rg6 Qg2 Bg3 Rcb3 Rc6 Rc3 Bb8 Rbc2 Bgc7 Rb2 Rd6+ Ke5 Qc1 Rbe2 Qhd2 Rf2 Rd4+ Kf5 Rh6 Kg4 Rg6+ Kf3 Qh6 N5b3 Qcd2 Na5
1b5K/3RPb2/RQ1NNB2/bn2PnpP/1NB1n3/7n/qQ2P1qk/1QQ5 w - - 0 1 legal: proof: f4 a5 b4 b5 d4 h5 g4 g5 gxh5 e5 dxe5 Ke7 a4 Ra7 axb5 a4 c4 Rh6 e6 Ra8 b6 Rg6 c5 Ra6 b5 Rf6 b7 Rb6 cxb6 Rf5 Nd2 Rd5 Nb1 Re5 fxe5 Ke8 Kd2 Ke7 Kd3 c5 Ke4 d5+ Kf5 a3 h4 a2 h6 c4 h7 c3 h8N c2 h5 d4 Nc3 d3 Rh4 d2 Rb4 Qd5 Nf3 Nf6 Bh3 Nc6 b8Q Na7 Nd4 Qg2 b7 Ne4 Ba3 c1B b6 f6 Kg6 f5 Kh7 f4 Qg1 d1N Nf7 f3 Kh8 f2 Qh1 f1N Nd5+ Ke8 Rb2 Bd6 Rd2 Nfg3 Qf1 Bc7 Be7 Ndf2 Bf6 Kf8 Rd3 Bd2 e7+ Ke8 Be6 Nh3 Qc1 Bb4 Rb1 a1Q Rbb3 Bc3 Ra3 Qa2 Ra6 Ba5 Rd1 Bd6 Qbc7 Bd7 b8Q+ Bc8 Qbb7 Bd7 Rd2 Ba4 Q7c2 Bb3 Q2b1 Bc4 Qc7 Bb3 Q7c2 Nb5 Nb4 Bc7 Bd5 Kd7 b7 Bd6 b8Q Bc4 Qb6 Bb8 Ba8 Be6 Q2b2 Bd5 Ndc6 Ke6 Ncd8+ Kf5 Bc6 Bc4 Rd7 Kg4 Nd6 Bf7 Ne6 Nf5 Bd5 Kg3 Bc4 Kh2
2N1n1Nk/Bn3rNP/7R/1bPBpR1Q/1p3PP1/4QNKb/2qRr3/1r6 w - - 0 1 legal: proof: d4 f5 b4 g5 e3 a5 bxa5 c5 dxc5 f4 exf4 h5 Qd4 g4 Qd6 h4 Qd1 Bg7 g3 Bf6 gxh4 g3 h5 g2 Ne2 Bh4 Ng1 Bg3 fxg3 Rh7 Qd6 Rh6 Qd1 Rh8 Kf2 Kf7 h4 Kg7 c4 d5 a4 e5 g4 b5 c6 b4 c7 d4 a6 d3 h6+ Kh7 a5 d2 a7 Qg5 h5 Bb7 c8N Nf6 a6 Nc6 Qb3 d1B Nf3 g1R Nbd2 Kg8 h7+ Kg7 h6+ Kg6 Bg2 Rf1+ Kg3 Nb8 Ra2 Ne8 Ne4 Qf5 Nf6 Qc2 Be3 Nc7 Ng8 Qe4 Rd2 Kf7 Bd4 Qf5 Qe3 Nd7 Rh2 Rb8 a8R Ne8 a7 Ba4 Rh5 Qc2 Rf5+ Kg6 Bb6 Rb1 c5 Bb5 Bh1 Ndf6 Bg2 B7c6 Bh1 Rb7 Rb8 Rd1 a8N Rb1 Nc7 Nd6 Ne8 Rf7 Ba7 Nb7 Ng7 Ne8 Bg2 Na5 Rb6 Nb7 Nd4 Bf1 Bd5 Bg2 Nf3 Bh3 Nf6 Bb5 Ra6 Rhf8 h8Q Rd7 h7 Rff7 Qf8 Rd8 Ng8+ Rd6 Ra1 Ra6 Qe7 Ra2 Qh4 Rab2 Ra2 Re1 Ra3 Rbb1 Ra2 Re2 Ra6+ Rf6 Re6 Kf7 Rd6+ Kf8 Ra6 Rf7 Qh5 Qd1 Rh6 Qa4 Qh4 Qa2 Nh5 Qb2 Nhf6 Kg7 Nh5+ Kh8 Ng7 Qc1 Qh5 Qc2
1Q1r2R1/PnB2pP1/2R3bK/Q1qNNpB1/1BB2P1r/1Pb4b/8/2kn2N1 w - - 0 1 illegal: Other
1R1r2rQ/2P1p3/1R2Pp1R/4qN2/N1KbB2n/kPB3P1/3q1Q1N/Nq4b1 w - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 b5 Kd2 g5 fxg5 b4 Ke1 b3 axb3 a4 h3 a3 Bf4 a2 Nc3 Na6 Bh2 Nc7 Nb1 Nb5 Bf4 Bb7 Bc1 Na3 bxa3 Bc6 Bd2 Bf3 Bc1 Bg4 hxg4 Ra6 Qd3 Ra5 Qd1 Ra8 Kd2 h5 Kd3 d5 e4 Kd7 c4 Kc6 e5 d4 e6 f6 a4 h4 g3 h3 a5 h2 a6 Nh6 g6 Ra7 g5 Rc7 a7 Rh7 a8N Rh8 g7 Ng4 g8Q Qd7 g6 Ra7 g7 Ra5 Bb2 Rh7 Qe1 Rb5 Bc3 Ne3 Qh8 Rh6 g8R Ng4 Bg2+ Qd5 Nb6 Rg6 Be4 Bh6 Na4 Rb8 Nf3 Rd8 Na3 Be3 Qf2 Nh6 Nc2 Nf5 Rad1 Rg4 Na1 Nh4 Re8 Rg8 Rc1 Kc7 c6 Kd6 c7 Kc6 c5 Kb5 c8N Qe5 Nc2 a1B c6 Bb2 c7 Ba1 Bd2 Bc3 Na1 Kb4 Nd6 Ka3 Kc4 d3 Nf5 Bcd4 Bc3 d2 Rf8 d1Q Rc2 Rd6 Rb8 Rdd8 Rd2 Qc2 Rd3 Qd2 Rb6 Bc5 Rb8 Ba7 Rd6 Bec5 Rdb6 Bd4 Rf1 h1Q Nh2 Qf3 Re1 Qfd1 Rh1 Qb1 Nf3 Ng2 Rh6 Nh4 Nh2 Qde1 Qg2 Bg1 Qf2 Qd2 Rb5 Be3 R5b6 Bd4
4BRQB/RPkN4/1n1qQn1p/P3Qr2/1q1P1p1N/3PbR2/3qQb2/7K w - - 0 1 legal: proof: h4 d5 f4 e5 fxe5 g5 hxg5 b5 a4 d4 c3 b4 cxd4 Be6 Nh3 Bd7 Ng1 Bc8 b3 a5 Nh3 Ba6 Ng1 Bb5 axb5 a4 b6 a3 Kf2 Kd7 Ke1 Ra4 bxa4 Ke8 Kf2 Kd7 g4 c5 Kg2 f5 b7 c4 e6+ Kc7 e7 b3 e8R a2 g6 h6 g7 f4 g5 b2 g6 c3 Rh3 c2 Kh1 Qc8 Rf3 Qe6 Nc3 b1Q Bb2 c1B Ne4 Qc8 Nc5 Kc6 Nd7 Ne7 g8Q Bg7 Rf8 Qe8 Qe6+ Kc7 e3 Nf5 Bb5 Qd8 Qe2 Bf6 g7 Nd6 g8Q Bh4 Nc5 Rh7 d3 Qe7 e4 Rf7 e5 Be1 Rf2 Kb6 Qf5 Qe6 Ba3 Qeb3 e6 Qd1 e7 Rf6 e8Q Nc4 Qe8e6+ Kc7 Nf3 Be3 Nh4 Nb6 Be8 Qd2 Rf3 N8d7 Qfe4 Rf5 Bb4 Ne5 Nd7 Ng4 Be7 Qb5 Bg5 B1f2 Bf6 Qe5 Q4d5 Qd6 Bh8 Nf6 Qde5 Qb4 Rb1 Qd2 Rb5 Qb4 Ra5 Qd2 Ra7 a1Q+ Qe1 Qac3 a5 Qc4 Qe2 Qcb4
QNRN1q2/nn4Bp/1PP1RqP1/1bK5/N4R2/kBQ1p1Pr/N1q5/5q2 w - - 0 1 legal: proof: d4 b5 f4 d5 a4 c5 axb5 g5 h4 e5 hxg5 a5 e3 Bd6 dxc5 d4 e4 Ra7 Bd2 Rd7 Be3 Bc7 Bc1 Rd5 exd5 e4 Bd3 Bd6 Bf1 Be5 fxe5 Kd7 Qh5 Ke7 Qd1 Ke8 Kd2 Kd7 c4 f5 b4 f4 c6+ Ke7 d6+ Ke6 d7 f3 g6 a4 c5 Kd5 c7 a3 b6 e3+ Kd3 f2 b7 a2 b5 Ne7 e6 Rg8 g3 Nbc6 b8N Bb7 c8R Rg7 Bb2 Na5 Ne2 Nac6 Nc1 Na7 Qc2 Ba6 Rh4 Nf5 e7 Rf7 e8Q Nd6 Rf4 Rf5 Qc3 Rh5 c6 Qe7 d8N Qf8 Re4 Rh3 Re6 Bb7 Be2 f1Q b6 Q1f6 Bd1 Ba6+ Kc2 d3+ Kb3 d2 Kb4 Bc4 Bb3 d1Q Na3 Q8g7 Nb5 Qc2 Rb1 a1Q Na2 Qgf7 Rf1 Qf8 Rf4 Qf1 Qe1 Qe4 Nbc3+ Kd4 Qc1 Bb5 Na4+ Kd3+ Qc4+ Kd2 Kc5 Qc2 Qf7 Kd1 Qb7 Kd2 Qa8 Kd1 Bd4 Kd2 N2c3 Kc1 Na2+ Kb1 N4c3+ Kb2 Na4+ Ka3 Qc3 Q6f7 Bh8 Qf6 Bg7 Nb7+
1B2N3/q1PrKPnq/1R4RP/P4BRB/2NB2p1/2Q2npk/2n4b/6nQ w - - 0 1 illegal: Other
N3NB2/8/1P1Q1QB1/2PR4/KBbbR2r/P2k4/3pp1BP/brqNbr2 w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 Na6 a3 Qb6 a4 Qd8 Bh6 Nc7 Qd3 a5 Qd2 Nb5 axb5 a4 Be3 a3 Qe2 a2 Qd2 Nh6 Qd3 Nf7 Bc1 Ne5 Qd4 Nc4 Qd1 Na3 bxa3 Bb7 Bc4 Ba6 Bf1 Bc8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 f4 e5 f6 g5 f5 d5 b6 d4 c6 d3 f7 g4 c5 g3 f6 g2 h6 Qd6 c7 Be7 f8B Bf5 c8B Bd7 f7 Qc6 h7 Bf6 Nh3 g1B Bd2 Bg7 Bg2+ Kd4 Nc3 e4 Nd5 e3 Nf2 Qd6 Nc7 Ra4 Ne8 Bb5 Bf5 Qh6 Bg6 e2 Rb1 Rg8 h8Q a1B Rb2 Be5 Qf6 Qg5 Be1 Qc1 Qd2 Ba6 Nd1 Bf2 Rf1 Bg3 Rf5 Rh8 Rg5 Rh4 Rh5 Rf4 Rf5 Rf3 Rc2 Ke4 Rc4+ Bed4 Qh6 Bf2 Bc3 d2 Qd6 Kd3 Rd5+ Rf5 Qg5 Ra5 Qgf6 Rb5 Ka4 b3 Bb4 b2 Bg7 b1R f8N Be1 Ne6 Rb2 Bf8 Rb1 Bc3 R5b3 N6c7 R3b2 Rb4 Bc4 Na8 Rc2 Re5 Rcb2 Re4 Rf4 Rb3 Rf1 Bb4+ Kc2 Rg3 Rb3 Rgg4 Rh3 Rg5 Kd3 Rd5 Rh4
1n1n1NQ1/4RPK1/4nQBn/2k4P/bRp1P3/Bp1bbQ2/4PN2/Q3N1q1 w - - 0 1 illegal: No proof kernel
2NB3Q/B3PNQ1/1R1Pr2P/2KrRBP1/5n2/6n1/1Nn1p1pr/kr2B2q w - - 0 1 illegal: No proof kernel
r2rQ1R1/q1BP4/1n2rRpP/7K/1q1NP1r1/k4Np1/1N2BRNP/n5Q1 w - - 0 1 illegal: Other
r2k2q1/pRR5/Q1KP3Q/N2Pr1bN/r2pPB1q/5r2/QRBP1r1R/8 w - - 0 1 legal: proof: c4 d5 e4 b5 a4 e5 axb5 h5 g4 d4 gxh5 Nf6 f3 Nd5 cxd5 Be6 d6 Na6 Qb3 Nc5 Qd1 Bd5 exd5 e4 Qb3 e3 Qd1 Ne4 fxe4 Qf6 Be2 Qg5 Bf1 Qd8 Ke2 f5 Kd3 g5 Kc4 c5 b4 f4 h4 g4 h6 e2 h5 e1R b6 g3 Kb5 c4 h7 c3 h6 g2 b7 c2 b8R f3 Ne2 g1Q Kc6 f2 b5 Be7 b6 Bg5 b7 Bh4 Ba3 c1R+ Bc5 Qg8 Qc2 Bg3 Qa2 Qf7 Rh2 Qf5 Nf4 Re2 Nh5 Rc2 Na3 Bh4 Rc1 Rg8 h8Q Qf3 h7 Qe3 Nc4 Rc3 Na5 Re1 Bd3 f1R Bc2 Rd3 Bb6 Qf2 Qg7 Rg3 h8Q Qg1 Qhh6 Rf2 Qg4 Ra3 Qe2 Rg5 Qa6 Ree3 Bc7 Ref3 Bb6 Kf7 Bc7 Qh8 Bd8 Re5 Bg5 Ra4 Bf4 Be7 Re8 Bd8 b8R Qgg8 Rb2 Bg5 Reb8 Qf6 R8b7+ Ke8 Rc7 Kd8 Rcb1 Qfe6 Rbb7 Qh3 R1b2 Qh4
4R1nR/5P1P/QKb4p/R1Bb4/1pN1pP2/1P3R1q/3rB2r/1krBNQ2 w - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 exf5 b4 dxc5 Kf7 a4 Qb6 g5 Qb5 axb5 Ke8 g6 h6 Qf3 Nc6 Qd3 Nd4 Nh3 Ne6 Ng1 Ng5 Qd1 Nh7 gxh7 g5 h4 g4 Rh2 Bg7 Rh3 Bf6 Rh1 Bg5 hxg5 Bb7 Rh4 Ba6 Rh1 Bc8 Kd2 Kf7 Kd3 e5 Kc4 a5 f4 d6 f6 Kg6 c6 Kf5 b6 Ke4 Kb5 g3 c4 g2 c5 d5 b7 d4 b8R d3 b3 d2 c7 a4 f7 a3 g6 a2 c6 Ra5+ Kb6 Ra4 g7 Bh3 c8Q Bg4 c7 Ra3 Be2 Be6 Qa6 Bd5 Nf3 g1R Qf1 d1B c8B Rg2 Bb7 Rh2 Ne1 Ra5 Re8 Rc5 Bd2 Rc1 Na3 Kd4 Be3+ Kc3 Ba8 Kb2 Bc5 Bc2 Rg1 Bce4 Rg3 Bc6 Bb7 Bed5 Rf3 e4 Bc8 Rc2 Bg4 Rd2 Rd1 a1Q Rc1 Qa2 Ra1 Qb1 Nc4+ Kc1 Ra4 Qd3 Ra5 Kb1 Bd1 Ne7 g8R Qe3 Rf2 Qh3 Rgf8 Rg8 Bge2 Rg1 Rh8 Ng8 Rf3 Rg3 Rf2 Rc3 Rf3 Rc1
2QR3q/6PK/5Q2/n2NPp1B/NRb5/1Pp1NrP1/b1R2npR/1k2B1q1 w - - 0 1 illegal: No proof kernel
Q4QR1/PQ1rB1q1/b3p1Qn/p2r4/P1P1PqR1/b1N5/pK5k/2B3NB w - - 0 1 illegal: Other
n1B3RQ/1N2B2P/1q2r1B1/1K4n1/3Qq2P/pP5N/PR1p1pRb/2knB3 w - - 0 1 legal: proof: d4 a5 g4 d5 c4 e5 e4 h5 gxh5 b5 cxb5 c5 dxc5 d4 f3 Bb7 Na3 Bd5 exd5 e4 Nb1 e3 Qa4 Ra7 Qb3 Re7 Qd1 Re4 fxe4 Qf6 Qf3 Qg5 Qd1 Qd8 Ke2 Kd7 Kd3 g5 Kc4 f5 h4 a4 c6+ Kd6 b6 Ke5 d6 Kf4 b3 d3 h6 g4 d7 a3 h7 g3 b7 g2 c7 Nh6 c8B Na6 b8Q+ Qc7+ Kb5 Nf7 d8B Bd6 e5 Re8 e6 Ng5 Nd2 e2 e7 Ke3 Rb1 e1Q Rb2 f4 Nh3 g1N Rh2 f3 Rg2 f2 Qg4 Bh2 Ne4+ Qd2 Nd6 Ne2 Nb7 Qb6+ Kc4 Nc7 Qd4+ Kf3 Qa8 Qf4 Bd2 Nc3 Be1 d2 Bd3 Nd1 Bg6 Ke2 Qb8 Na8 Qe5+ Qe4 Qh8 Rf8 e8R Rf6 Be7 Re6 Rg8 Nc3 Bf6 Kd1 Bd8 Kc1 Be7 Qa6+ Kc5 Nd1 Kb4 Qa7 Kb5 Qb6+
Q1bnR3/1BqqPp2/1B3N2/B1PN2K1/Q1pr4/2Np4/b2kBP1P/R2q4 w - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 c4 b5 d4 c6 dxe5 Ra6 c5 Rb6 cxb6 c5 a3 c4 Qd3 Na6 Qd1 Bc5 bxc5 b4 Bb2 b3 Bc1 Nb4 axb4 Qf6 Ba3 Qe7 Bc1 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 d5 e4 g6 b5 d4 b7 b2 b8N d3 b6 a4 h6 a3 b7 a2 h7 Qb6 Kg5 Qb4 Nc3 b1B Qa4 Qb5 Nge2 Qa5 Nd5 Qb5 Nec3 Qc6 Bd2 Qc7 Nd7 Ne7 b8B Nc6 Be2 Rd8 N7f6 Rd6 h8Q Nd8 Ba7 Rd7 Ne7 Rd4 Ned5 Qd7 Bb6 Qc7 Kg4 g5 Re1 Qd7 Kh5 g4 Kg5 g3 Qe8+ Qe7 Qa8 g2 Qea4 Qc7 Nd1 Nc6 Bda5 Nd8 N1c3 g1Q+ Kh6 Qf1 Kg5 Qd7 Nc7+ Ke7 e6 Qh1 e5 Qb7 Na6 Qbc7 Nb4 Kf8 e7+ Kg7 e8B Qh3 Nce4 Qhd7 Kh4 Kg6 e6 Kf5 Nbd5 Ke5 Kh5 Bc2 Nec3 Bb3 Rab1 a1Q Kg5 Ba2 e7 Qh3 Bc6 Qhd7 Rb2 Qd1 Bb7 Rf4 Rb1 Kd4 Rg1 Rh4 Ra1 Qb8 Nce4 Ne6+ Kf5 Qbc7 Rg8 Nd8+ Kg5 Rf4 Re8 Rh4 Ng3 Rf4 Nb4 Kc3 Nge4+ Kb2 Nc3 Rd4 Qc6 Kb3 Nbd5 Kc2 Qa4+ Kd2
3N2qB/p7/1k2bpQP/1bnqqp1R/5PPP/R3R2R/1BBKN3/2Q2r2 w - - 0 1 illegal: Other
1R3N1K/NNr1rQBn/1P2pb2/1NPpR3/3nPp2/Q3rn2/1PR5/5B1k w - - 0 1 legal: proof: d4 c5 dxc5 g5 f4 b5 fxg5 b4 c4 b3 axb3 Bg7 b4 Qb6 b5 Qd8 b6 Bf8 h4 Bh6 g4 Ba6 h5 Bb5 cxb5 Bf8 Qd5 Qc8 Qb3 Qc6 Qd1 Qg6 hxg6 Bh6 Bg2 Bg7 Bf1 Bf8 Kf2 h5 Kf3 d5 Kf4 Kd7 Kf5 a5 e4 a4 b7 f6 b6 Kc6 g7 a3 Kg6 f5 Qf3 a2 Qa3 h4 Nd2 e6 Nb3 h3 Na5+ Kd7 Nf3 h2 Nd4 Nc6 b8N+ Ke7 Nb5 Rh7 Nd7 Nb4 Nb7 Nf6 g8R Bg7 Rb8 Nc6 Nf8 Ra7 Bf4 Nd4 Be5 f4 Rc1 a1N Rc2 Bh8 Rg1 h1R Rgg2 Nd7 Bg7 Nf6 Rh2 Rh3 Rhg2 Rd3 Rh2 Rg1 Rh5 Nf3 Kh6 Rb3 g6 Re3 Re5 Nb3 g5 Rg2 Re2 Nbd4 Rc2 Ng4+ Kh7 Rg1 Bh6 Bf6 g7 Rh1 g8Q Rh4 Nd8 Rc7 g6 Rh5 g7 Rh1 Be2 Ra1 Kh8 Ra2 Qc3 Raa7 Bf1 Rab7 Qh7 Ra7 Nb7 Kf7 Na5 Re7 Qf5 Rac7 Qa3 Nf2 Qh7 Nh3 Nb7 Nhg5 Nd7 Rb3 Qg8+ Kg6 Nf8+ Kh5 Qf7+ Kg4 Rc4 Kg3 Rc3 Nh7 Rc2 Bh4 g8N Re8 Ne7 Bf6+ Bg7 Re3 Nc6 Ree7 Bg2 Kh2 Bf1+ Kg1 Nca7 Kh1
6rq/k1p3Br/p3K1PB/1q2p2P/2B2bN1/2RBRq2/PR1P1Q2/r3Q2N w - - 0 1 legal: proof: e4 b5 g4 d5 exd5 g5 c4 e5 cxb5 h5 f4 Nh6 f5 Be6 fxe6 Nd7 Ke2 Nf6 Ke1 h4 h3 Nh5 gxh5 g4 Rh2 g3 Rh1 Ng4 hxg4 Ba3 Rh2 Bb4 Rh1 Bf8 Ke2 f5 Kf3 h3 b4 a6 e7 Kd7 e8B+ Kc8 b6 Kb7 d6 g2 b5 h2 g5 f4 Ke4 f3 Kd5 f2 d7 Bg7 g6 Qc8 d8B Qf5 Nc3 Rb8 Bg5 Qc2 Nce2 Ra8 Bf7 Rae8 Ng3 Re7 Bd3 Rf8 Ba3 f1R Nf3 g1Q Rc1 Ka8 b7+ Ka7 Qe2 Kb6 b8Q+ Ka5 b6 Rfe8 b7 Kb6 Qa7+ Ka5 b8R Qb1 Rc3 Qd1 Qaf2 Bh6 Rb7 Qa4 Rb2 Qg2 Rg1 Rb1 Re1 h1Q Be6 Qhh3 Nh1 Rh7 Bf8 Ra1 Bg7 Ra8 Bg8 Qc8 Qef1 Qgg4 Nh2 Qf3+ Re4 Qce8 Ng4 Qb8 Bf7 Qh8 Q1e1 Rg8 Be6 Qf8 Re3 Qb5+ Ke4 Kb6 Bec4 Qa8+ Kf5 Ka7 Ke6 Qg2 Bh4 Bf4 Bg5 Qa8 B5h6 Qf3
Rb4B1/2qbkPb1/1Q1NPp2/Q2pK3/N2Qp3/2R4r/2Q1RPPp/4b1B1 w - - 0 1 illegal: No possible last move
1NK5/p1BRp2P/Pq4P1/3qP2B/4nQ1N/nB1Qn2n/1p4Qp/k1BR4 w - - 0 1 legal: proof: c4 b5 f4 d5 f5 c5 f6 g6 b3 Bh6 cxd5 c4 b4 Na6 Nf3 Rb8 Ng1 Rb7 Kf2 Rc7 Ke1 Rc5 bxc5 Qd6 Na3 Qb6 Nb1 Qd8 g4 Bg7 fxg7 h5 h3 Rh6 g5 Bg4 gxh6 g5 Bb2 Bf3 Bc1 g4 Rh2 g3 Rh1 Bg4 hxg4 Qa5 Na3 Qb6 Nb1 Qd8 d4 Kd7 Kd2 f5 Kc3 g2 a4 h4 e4 h3 e5 h2 a5 f4 c6+ Kc7 g5 f3 h7 f2 d6+ Kb8 c7+ Kb7 c8B+ Kc6 d5+ Kc5 d7 Nc7 d6 Nf6 g8Q Nh5 a6 Nf4 Na3 Nce6 Qd2 Nf8 Be2 f1N Bh5 N8e6 Nc2 Ng7 Nb4 Qb6 d8Q Nh3 d7 Ng3 Qf4 N7f5 Nf3 g1N Nh4 Ne3 Nc6 Nf3 Rd1 Nd4 Nb8 Ndc2 Ra2 Na3 Rad2 Qc6 Bb7 Qb6 Bd5 b4+ Kb2 b3 Kc3 Qd6 g6 Kb5 Kd4 Ka4 Qgf7 Qe6 Kc5 b2 Qf1 Kb3 Qg2 Ka2 Qf4 Qg8 Kc6 Ka1 Kb7 c3 Kc8 c2 Bb3 Qd5 Qdf8 Qg8 d8B Ne4 Q8f5 Qf7 Rd7 Qd5 Bd2+ c1Q+ Bc7 Qb1 Bc1 Qc2 Qgg3 Qf2 Qg2 Nf6 Qd3 Ne4 Qh6 Qf6 Qf4 Qb6
2k2q2/K1b1QB2/1Brqr3/B3n2R/N1b1n1QP/r1PBP3/1P2n3/q1R2RN1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Kd3 f5 Kc4 d5+ Kb4 Kd7 h4 a5+ Ka4 f4 b6 f3 Kb5 d4 b7 a4 e3 d3 h6 g4 h7 g3 Bd2 a3 Bb4 d2 Nc3 a2 Ba5 g2 Bd3 f2 Rc1 f1R Na4 a1Q c3 Rf6 Qg4+ Re6 Bb6 Nc6 b8B d1Q B8c7 Nf6 Ba5 Rg8 Kb6 Qe7 h8R Ne4 Rh5 Ba6 Qg5 Qf7 Qe7+ Kc8 Bd8 Bc4 Bc7 Reg6 e6 Ne5 c6 Bh6 Bd8 Re8 c7 Qd2 Rf1 Bf4 Rc1 Qf8 Rf1 Rb8+ Ka7 Bh2 Qa3 Rb4 e7 Rb3 Qb4 Ra3 Qb7+ Kd7 c8Q+ Kd6 Ne2 g1N Rc1 Nef3 Bb1 Qd5 Qg4 Qe6 Bdc7+ Kd7 Bd3 Bf4 Qb4 Kc8 Bcb6 Bc7 Qc5 Ne5 Qb4 Ngf3 Rhf1 Nd4 Ng1 Ne2 Qd6 Qd7 Qc5 Rc6 Qd6 Rd8 e8B Qe6 Bg6 Re8 Bf7 Qd7 Qc5 Ree6 Qe7 Qd6
bBn3NB/q7/b1BqP2r/k3NRP1/1N3Qn1/2rRP3/2P2Q1K/bn1q3B w - - 0 1 illegal: No possible last move
Nr2n2r/5r1b/1P1bk1P1/B2q3P/Q5K1/n1BP1q2/1R1BN2b/nB1RN1Q1 w - - 0 1 illegal: No proof kernel
1Q3n1q/r1B1rPnB/1b2rP1P/Nk4Bb/1q1Q1N2/2bR2Q1/1P3q2/1QK3R1 w - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 Kd7 Kd2 g5 h4 a5 f4 c5 b6 e5 f6 g4 d6 Kc6 d7 g3 h6 e4 h7 a4 b7 g2 f7 c4 f5 e3+ Kc2 e2 f6 e1B d5+ Kb5 d6 a3 h5 a2 h6 Ra7 Bf4 Ne7 Rh3 Bc3 Bd3 Nf5 Kc1 Ng7 Ne2 g1Q Nd2 Qf2 Bg5 Qa5 d8B Nd7 Qg1 Qb4 b8Q+ Rb7 Rb1 a1R Nb3 Ra7 Bc7 Be7 Na5 Bd8 Qf1 Re8 h8Q Re6 Qg8 Nf8 Bh7 Bd7 Rg3 Bc6 d7 Bf3 Nf4 Bh5 Be5 Bc7 d8Q Bb6 Rd3 Rbe7 Ra1 Bd4 Bc7 c3 Rb1 c2 Qg1 Bc3 Qd4 Nf5 Qg6 Ng7 Qg3 Re5 Re3 Qf3 Bg8 Qb7 Qge4 Qc8 Bh7 Nd7 Qg6 Be1 Ra3 Qh8 Rc3 Bf2 Kd2 c1Q+ Kd3 Qf1+ Kd2 R5e6 Qc2 Qg2 Rg1 Be1+ Kc1 Nf8 Qb1 Qf2 Rd3 Bc3
qnbN3k/Kb1r1PrP/4R2B/1Bnn3N/1B3Q2/PRP2N2/q4b2/1B3Q1q w - - 0 1 illegal: No possible last move
4q2N/1NP4B/Q4PQK/1bbkqPrB/2n4P/1Q1BbRnR/2n1r3/4r1B1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Ke3 d5 Kf4 b5 Kg5 e5+ f6 Ke6 h4 b4 f4 b3 a4 b2 c4 e4 c6 d4 c5 g6 c7 d3 c6 e3 h6 d2 h7 e2 a6 e1R a7 Bc5 a5 Qd6 a6 Bf2 Ra3 Kd5 Rf3 Ne7 Rhh3 Ke4 Na3 b1N Ne2 Bg1 Qb3 d1Q Nc4 Nd7 Kh6 g5 Na5 g4 Nb7 g3 Be3 Rg8 h8Q g2 Qg7 Ne5 Qg6+ Bf5 c8B Nc4 c7 Qe5 Bd7 Nba3 Be8 Nc2 Bc5 Rc8 a8B Qd7 a7 Kd5 Be3 Bd3 Bc5 Bh2 Bg1 Rg7 Bf7+ Qde6 Bg8 Re8 Bh7 Qc6 Qh5 Rg5 Qg6 Nc8 f5 Bf4 Qb4 Be3 Qb3 Nd6 Nf4+ Kd4 Be2 Ne4 Bd1 Bf1 Be2 Ng3 Bd3 Nb4 Qf7 Qa4 Ng6 Nc2 Nh8 Re6 Qg6 Qe8 Nc5 Re2 Bb7 Re1 a8Q Be2 Qa6 Re7 Bc8 Kd5 Nb7 Bc5 Bd7 Bf1 Bh2 g1B Ba4 Bge3 Bg1 Qc8 Be8 Re6 Bf7 Qe8 Qg8 Be2 Qg6 Qb2 Rf2 Bd2 Qh5 Bf1 Be2 Bc1 Qc3 Nd6 Rf3 Qa1 Bb5 Bd3 Bfg6 R6e2 Qb4 Qae5 Qb3+ Bc4 Bf7+ Q8e6 Bfg6 B1e3 Bge8 Qd7 Qf7+ Qde6 Qg7 Qc8 Bh5 Qce8 Qg6 Kd4 Bc6 Bb5 Be4 Nc4 Bd3 Kd5
k1nN4/P3b1Qb/5PP1/n1RR4/3qnBr1/BNbr2RP/6BK/Rq2Q2q w - - 0 1 illegal: No proof kernel
R1NQ1n2/P3b1r1/k2P1r1R/n1q1Rb1N/2q2R2/1QB2N1P/2BPq2K/1b3n2 w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 g5 e4 c5 a4 Kc7 d6+ Kc6 a6 Kb6 e6 f5 e7 c4 e8N c3 a7 c2 h6 g4 h7 Nf6 e5 Nc6 e6 Na5 e7 Nd7 Nc3 Rg8 h8Q Rg7 Bb2 c1Q Nf6 Qe8 Nb5 Qc4 Qb3 Ka6 Nh5 f4+ Kg2 b6 Bd3 g3 Rf1 f3+ Kh3 g2 Bc2 Rb8 Bc3 Rb7 a8R+ Ra7 Ne2 g1Q Ned4 Rf7 Qg8 Rf6 Qg5 Qf2 Qh4 Qfe2 Rf2 Qd8 e8R Qdc7 Re5 Be7 Kg3 Nf8 Qg5 Nb7 a5 Bf5 Qg8 Q7c5 Qh8 Nh7 Qd8 Nf8 h3 Qe6 Rg1 Qed5 Kh2 Qdc4 Rfg2 f2 Rg6 Be4 R1g4 Bf5 Na3 b5 Rh6 b4 Nf3 Q4d4 Rf4 Qdc4 Qb1 b3 Nb5 b2 Qa2 b1B Qb3 Q4d5 Rb8 Ra8 Na7 Qdc4 Nc8 Ra7 Ra8 Qcd3 Qd5 Qdc4 Qe6 Kb5 a6 Na5 Qg8 Rd7 a7 Ka6 Qe8 Bd8 Qge6 Rg7 Q6f7 Be7 Qd8 Q4d4 Qa2 Qdc4 Qb3 f1N+
1K3B2/3B1n2/1R2RrPq/Qn2nR1n/2P1N1BQ/1kr1P1PN/8/1bb1nRb1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 Ke6 Kf4 a5 b4 h5 c6 f5 b6 d5 c7 d4 c3 Kd5 e6 Kc4 Ke5 a4 g6 a3 b7 a2 e7 d3 e8B f4 b5 h4 b6 d2 Nf3 h3 Ng5 f3 Bd7 h2 Ke6 f2 Qe1 d1N Rg1 h1N Ba3 Ng3 Nh3 Nc6 b8Q Nh6 b7 Ra6 Qa8 Bc5 b8R Qf8 Rb6 Nh5 g3 Ne5 Qe4+ Bd4 Qh4 Nhf7 Be7 Qh6 Bf8 Bb7 c8R+ Bc6 Rd8 Be4 Re8 Bd3 Bg2 f1N Bf3 Nfe3 Bg4 Nc2 Rf1 Bg1 e3 Rh7 Qd2 Ne1 Rf5 Be4 Rc6+ Kb3 c4 Ra3 Qa5 Nc3 Rb6+ Nb5 Nc3 Bb1 Ne4 Rg7 Kd5 Rh7 Ree6 Rh8 Bd6 Rc8 Bf8 Rc6 Re7 Rf6 Ree6 Bc2 Rc1 a1B Rd1 Bb2 Kc5 N5d3+ Kc6 Nde5+ Kb7 Bc1 Ka8 Bb1 Kb8 Ng2 Rdf1 Ne1 Nef2 Kb2 Ne4 Rc3 Qg5 Kc2 Qh4 Kb3
2q1R3/br2P1Q1/b2K1Bnb/R2r1RRr/Q4N2/1N1BnP2/PPN1b3/2bk4 w - - 0 1 illegal: No proof kernel
2Bn4/1QP3B1/1KNb1bqb/2nRRb2/4bPP1/B2N3n/k1P5/rr1NNQ2 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 e5 Kd3 Ke7 Kc4 h5 b4 a5 g4 d5+ Kc3 a4 f4 d4+ Kc4 e4 c6 Kd6 g6 d3 b6 a3 Kb5 e3 c7 d2 g7 h4 b7 h3 f6 h2 f7 e2 Nf3 e1B Kb6 a2 b5 Nh6 g8N Qe8 Nc3 Bf5 Ne7 Na6 b8N Nc5 Nbc6 Rh7 Rb1 a1B Nb4 Bf2 Qe1 d1N Nec6 Bg1 Rb2 Nf2 Nd1 Nh3 Nd3 Kd5 Qf2 Kc4 Nfe1 Rh8 Rb1 Bf6 Ba3 Bd6 f8B Nf7 Rb3 Nd8 Bg7 Qg6 Be2 Bg5 Qf1 Bd4 Rg1 h1B Rg3 Rg8 Re3 Bdf6 Re5 Ra7 Bf3 Bh6 Be4 Bc8 Bf5 Be4 Rb1 Ra4 Rd5 Rb4 Ra1 Rb1 Bd7 Bb7 Bc8 Bf5 Re5 Qh7 Bc1 Rb2 Na7 Bf3 Ka5 Na6 b6 Nf7 b7 Qg6 b8Q B3e4 Bd7 Rb1 Qb7 Ra8 Nc6 Nd8 Bb2 Ra7 Kb6 Ra8 Raa5 Ra7 Rad5 Nc5 Bc8 Ra3 Ne7 Raa1 N3f2+ Kb4 Nc6+ Ka4 Nfd3 Rc1 Bc3 Ka3 Bb2+ Ka2 Ba3 Rcb1+
2B1nB2/PQNnNPP1/r4q2/P1RK3b/2R2Nn1/2N5/1bn1n1rQ/k2r3B w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 b5 Kd4 h5 a4 b4 f4 b3 g4 c6 g6+ Kf6 g5+ Kg7 d6 b2 d7 c5+ Kd5 e5 d4 e4 a6 h4 a5 c4 a7 h3 Bg2 h2 Qd2 e3 Nh3 c3 Ra4 e2 Rc4 c2 Nc3 b1R Ba3 Bb4 f6+ Kf8 f7 Kg7 f8N e1N f5 c1N Nf4 Qb6 d8Q Qf6 Qc7+ Nd7 Qb7 Nc2 Rg1 Ra1 Bh1 Ne2 Rc1 Rh6 Rc5 Rb1 Rc4 Bd6 Rc5 Be5 N8e6+ Kh8 Nc7 Kg7 Rg1 Rd1 Rg4 Kf8 g7+ Kf7 g6+ Ke7 Kc4 Kd6 d5 Bd4 Rh4 Ke5 Rg4 Qf7 Rh4 Ngf6 g8B Ne8 f6 Qe7 f7 Qf6 Bh7 Rb8 g7 Rg6 Qb6 Rg2 Bf5 Rb7 Qa6 Rb6 Qb7 Ra6 Bg4 Nf8 Bh3 Bg4 Bb4 Bh5 Bc8 Nd7 Rg4 Kf5 d6+ Be5 Kd5 Bd4 Na2 Bb2 Nc3 Rgg1 Bf3 h1N Bg2 Nf2 Bh1 Rg2 Rh4 Ng4 Ba3 Kg5 Bb4 Nde5 d7 Kf5 d8N+ Nd7 Nc6 Ned4 Qf2 Ne2+ Kc4+ Rd5 Ne7+ Ke5 Na2 Ke4 Qg3 Ke5 Qh2 Ke4 Nc3+ Ke3 Nc6 Rd1 Ne7 Kd2 Kd5 Na1 Rh3 Kc1+ Rd3 Nc2 Rd4 Rf1 Rdc4 Re1 Na2+ Kb1 Nc3+ Ka1 Rc6 Rb1 Ng8 Rg3 Bf8 Rgg1 Ne7 Rg2 R6c5 Rd1+
5Rq1/bQ2B2Q/5P1r/3R1P1B/1n3PK1/1nkrr1PN/b1nb1BN1/4B1nR w - - 0 1 illegal: No proof kernel
1r2R1NN/1P3n2/Pb3R2/2kbRPb1/r6n/1KnQq1r1/1B3nPR/4QQ1B w - - 0 1 illegal: Other
1r1n3K/bb1q2N1/b1q2QQB/7B/P2B1rPR/NQ2P1b1/B2kPb2/1n5R w - - 0 1 illegal: No proof kernel
1QNK2R1/1Bn1q1B1/qb3b2/PRP1r1N1/1rbR3Q/1P2b1P1/3b2R1/1kB4n w - - 0 1 illegal: No possible last move
K1r1Q3/1R3nrN/1BPPN1b1/QqR1b3/3nrn1k/3P3q/P3QN2/1r1B2N1 w - - 0 1 illegal: No proof kernel
2KNRbQb/rPRn1bqQ/NP4R1/3NB2q/4P1N1/3Prq2/B2n2k1/7b w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 g5 b4 c5 h4 a5 e4 f5 h6 c4 d6+ Ke6 b6 g4 Kf4 g3 b5 a4 b7 a3 d7 g2 h5 a2 h7 c3 b6 c2 h6 Bd6 Nf3 g1Q Bb2 c1Q Nc3 Qg7 Rg1 Ne7 Nd5 Ra7 Qb3 Qd1 Nh2 Qh5 Bc4 Nec6 d3 Qdf8 Ng4 Nd4 Rac1 a1B Rg2 Rg8 h8R Nf3 h7 Nd2 Rc2 Qff6 Rc3 Bf8 d8N+ Kd7 e6+ Kd6 e7 Be6 Rc1 Nd7 e8N+ Kc5 Rc3 Kd4 Nec7 Bf7 Qa2 Qfh4 Na6 Qh1 Nge3 Q1d1 Rg6 Qhf3+ Kg5 f4 Kf5 Qdh1 Ng4 Qh5+ Rg5 Qe2 Qb3 f3 Qa2 f2 Bb3 Be8 Ke6 f1B Rg6 Bg2 Bc4 Bh1 Bb3 Bb4 Bc4 Rf8 Bb3 Rf3 Rc7+ Bc3 Kd6 Bf7 Re8 Re3 h8Q Qg2 Qh7 Qf3 Ba3 Bb4+ Kc6 Bf8 Bd6 Nb1 Qg2 Nd2 Ba2 Nc5 Qg8 Nd7 Qh2 Qhf5 Qhh7 Qh5 Bh2 Re1 Rc8 Qh8 Kc7 Bb2 Nf2 Bc3 Ndb4 Ke3 Nd5+ Ke2 Bf4 Kf1 Ng4 Re3 Bd6 Bcg7 Bf4 Kg2 Be5 Nc5 Kb8 Bf6 Rc7 Nd7+ Kc8 B6g7 Qh6 Bf6 Qhg7 Q8h6 Q7h7 Bh8 Rg7 Qhf6 Rg6 Qg7
Q2n1qn1/1Pb1R1Qb/P1rPQ1b1/2R1QN2/2rB2rq/1P6/N3B1kb/K5N1 w - - 0 1 illegal: No proof kernel
3R2nb/PQPr4/2q1k3/nQ1N4/Pqq1b1N1/5RQ1/Pr1RBb1B/1Qb3K1 w - - 0 1 illegal: No proof kernel
1B1r2nN/8/1PnPB1b1/Bk3b1N/nb2Nn1P/QRP1B3/2q1rK1R/4b2Q w - - 0 1 illegal: No possible last move
5k2/1Rb2rNK/P1n1B1n1/5P1r/1R1qP3/Q3br1b/QPB1r2B/1B2R1bN w - - 0 1 illegal: No proof kernel
n4Qr1/B5qP/NN2Rnb1/2Pr1N2/1P1bB3/1bBP1b1Q/2kn3K/B2Rn3 w - - 0 1 illegal: No proof kernel
2rn3k/1P2PB1q/1RbQN3/2Pb4/2B1bnB1/2K2NN1/PBR2Qn1/b5nr w - - 0 1 illegal: No proof kernel
N1k5/b1bb1q2/R2rp1rN/r1nBP1P1/1B2n2Q/1NnPN2P/1Q1K4/1RR5 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 b4 Kd7 e4 a5 d3 c5 h3 f5 d6 e6 b6 a4 b5 a3 b7 a2 e5 f4 h6 c4 b6 f3 h7 f2+ Kd2 Ra5 Na3 Qc7 Ne2 Qc5 Qb3 Nf6 Nc2 Be7 Ne3 Rf8 h8Q Qc7 Bg2 f1R Nd4 Na6 b8R Rd8 b7 Nc5 Ba3 Rf4 Rac1 a1B Ra8 Bb2 Ra6 c3+ Kc2 Bf8 Qh4 Nfe4 Bb4 Rf6 Qa3 Ba1 Nb3 Rg6 Qb2 Be7 Kd1 c2+ Ke1 Bf6 Rb1 c1N b8N+ Ke8 Rg1 Ne2 Nd7 N2c3 Nb6 Qf7 Na8 Rd7 Rh1 Bd8 Rf1 Bc7 Rc1 Nf6 Bd5 Kd8 Kd2 Nfe4+ Kc2 Bb7 Rb1 Bc6 Rfc1 Nf6 Kd2 Kc8 Qa3 Ne2 Qa2 Bd4 Qc2 Nc3 Qb2 Rd8 d7+ Kb7 Nc2 N5a4 Rh1 Ba7 Ne3 Nc5 Rhe1 Rh8 Rec1 Nfe4+ Ke1 Qe7 d8N+ Kc8 Nf7 Rd8 Nh6 Rd6 Nf7 Bd7 Nh6 N3a4 Ke2 Qf7 Kd1 Nac3+ Ke1 Ng3 Kd2 Nge4+
k1b2rBN/1RRb1P1P/5N2/P2nN1Kn/5QP1/2rn1Qb1/2pB3N/3rq2Q w - - 0 1 illegal: No proof kernel
1nN1N1r1/5rB1/2B1Q1n1/qbKQp1QR/R4q1P/P2P3B/1b2kb1P/2q3B1 w - - 0 1 illegal: No possible last move
1B5r/bRN2N2/nB6/PK2p2P/4Q1bP/1N4NP/1kqQ1rb1/R1q1qBn1 w - - 0 1 illegal: No proof kernel
1q2r3/1NN5/1rR1n1pb/K3RrB1/2Pb3Q/B1qQ1NBn/1P1P2Pn/2k2B2 w - - 0 1 illegal: Other
2Q5/qBN2QKn/5PR1/1rRP2R1/3Pr2p/q2BP1nR/bB4k1/1Nr1bb2 w - - 0 1 illegal: No proof kernel
1Q5R/q4BKr/2r1P3/PPkqQ3/Q3r1bn/3pR1BP/1B2Q1b1/N2Nb2n w - - 0 1 illegal: No proof kernel
Nbr2rR1/R2BN1q1/3QPp1n/q2P1P2/3B1n1Q/2R1b1KP/1R6/1Bb2k1q w - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e5 dxe5 d4 axb5 Bb7 c4 Bd5 cxd5 Rh6 Qd3 Rh7 Qd1 Rh8 f4 Ke7 Kf2 g5 b4 a5 e4 c5 h3 d3 f5 a4 e6 Kd6 e5+ Kc7 e7 Kb6 e8B d2 e6 a3 h6 f6 h7 a2 Qe1 d1Q Bb2 c4 Ne2 g4 Kg3 c3 Bd7 c2 Nf4 c1B Nd2 Qe2 Ng6 Na6 Bd4+ Nc5 Ne7 Nh6 Qf2 Qc4 Bd3 Rc8 Bb1 Qc7+ Qf4 Qf1 Qe5 Rg8 h8Q Qb7 Rh2 Qh1 Rf2 Qc7 Rf3 Qa7 Rc3 Qa5 Ng6 Bd6 Ne7 Bb8 Qh7 Rgf8 Nc4+ Ka7 b6+ Ka6 b7 Nd3 Qc7 Nf4 Nb6 Be3 Na8 Bc1 Kh4 g3 Qh8 g2 Kg3 g1B Qd6+ Rc6 Qh7 Bge3 Qh8 Qc7 b5+ Ka5 b6 Kb5 Ra3 Kc4 Ra7 Ng4 Qh4 Nh6 Ra3 Qd8 Rb3 Rc8 Rb2 Qc7 Rb3 Ba7 b8R Qb7 Rb2 Qc7 Rc2+ Kd3 Rc3+ Ke2 b7 Kf1 Qh5 Qa5 Qh4 Rc5 Re8 Rc8 b8R Qc7 Rb7 Bb8 Rd8 Rf7 Rg8 Rff8 Ra7 Qb7 Bc2 Qc7 Rb1 a1Q Rb2 Qaa5 Bb1 Qd8 Rab7 Qe8 Rbc7 Qf7 Ra7 Qg7+
KrQ5/5B2/3PrbRP/1pBr2B1/7n/1Bn3P1/Qq1q1RP1/N1N1Qbkq w - - 0 1 illegal: No proof kernel
3nN1rb/1k1BQ1qN/1Brp1QP1/2r1Bb2/4Pn2/BK3PR1/b2qPN2/3R4 w - - 0 1 illegal: No proof kernel
q1q4N/Q1B3B1/bbPr4/4nN1P/2BRB3/rP1pn1Q1/kr1K1NP1/6bR w - - 0 1 illegal: No proof kernel
1r5R/3rq2b/n1PQn2Q/q2Q2PR/NN2B2B/P1bQ2q1/2pPR3/2K3kn w - - 0 1 illegal: No proof kernel
6rN/b3K3/1P1QP1B1/pqP3kb/q1RBqn1n/RP6/2rRQ3/NQr4R w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 d5 Kd4 f5 e4 g5 c4 a5 h4 f4 e6 Kf6 b6 g4 c6 f3 e5+ Kf5 c7 g3 h6 f2 e7 g2 Kc5 d4 b3 d3 h5 d2 h7 Ra7 h6 Be6 c8R Qd3 Bb2 Ra6 Nh3 g1Q Nf4 Qe2 Kd6 Bf7 Ra3 Ra8 Bd4 Nd7 Ng6 Qe4 Bd3 f1Q c5 Qe2 Rd8 Qgg4 e6 Bg7 e8Q Nf8 Qd7 Nf6 Ke7 Nh5 Qd6 Be5 Qe1 Qf1 Qe2 d1R Rd7 Rg8 h8R Kg5 h7 Nf4 Bc2 Rg7 Rg8 Rc1 h8Q Rc8 Qh7 Qh4 Rd8 Qg4 Nh8 N8g6+ Kd7 Nh4 Ke7 Rb8 Rgf8 Bh5+ Rf7 Qc6 Bg6 Qa4 Rd7 Rf8 Rd8 Rgg8 Rf6 Nh3 Rf4 Qgg2 Re4 Rf2 Ba1 Nf3 Qdd2+ Bf4 Qc4 Qgg1 Qg7 Rc3 Ra2 Kh4 Na3 Qh2 Nc2 Kg5 Ra3 Nh4 Qf8 Qhg2 Qf5+ Kh6 Qcd5 Qfb5 Rc4 Qg4 Qd1 Bb8 Qd5d3 Rd2 Q3e2 Ba7 Qd5 Qf5 Qb1 Qe4 Qc6 Rd1 Rd2 Kg5 Qd6 Rc1 Bb2 Nf4 Na1 R3c2 Be5 Rf1 Bd4 Rfc1
N1q1q1B1/qn2kn2/PbQ4K/QPb1N3/1R3N2/BR4pQ/2Pr2P1/3Qr2b w - - 0 1 illegal: No proof kernel
Nn1QK3/R1r2B2/pb6/q2NQ2R/1NB1b3/q1b2nBP/P2PrBkP/1q6 w - - 0 1 legal: proof: c4 c5 b4 f5 bxc5 d5 cxd5 h5 e4 h4 exf5 h3 gxh3 Qc7 Qe2 Qa5 Qd1 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kb5 Kf4 d6 e5 c6 g5 d7 g4 c7 g3 f6 e4 f7 g2 Bc4 e3 Ba3 e2 Qe1 b6 Nf3 g1Q Nc3 Bb4 f8B Qg7 Nd4 Qf7 Rc1 Qf5+ Nd5+ Ke4 f4 Qe5 f5 Rh6 f6 Qde7 d8Q Rh7 f7 Bf5 c8B Nh6 Rf1 Ng4 Nc2 Bc3 Nb4 Rg7 Qg3 e1B Be6 Bf2 Rb1 Q5c7 Qe5+ Kf3 Rfe1 Kg2 Rb2 Qf6 Bd6 Be4 f8N Qf3 Nd7 Qg3 Bf7 Qe3 Qee8 Ne5 Bc5 Nf3 Qe5 Qd3 Rb3 Rh7 Bb2 Be3 Ra3 Bg1 Bf2 Qc5+ Ka4 b5+ Ka5 Qde3 N7b6 a6 Rb3 Ra7 Na8 Qg5 Re2 Qce7 Kb6 Rc7 Ra3 Qf8 Ra5 Re7 Ba3 Re6+ Kc7 Re8 Nc6 b4 Rb5 b3 Bd6 b2 Ncb4 b1Q Rb7 Qe3 Ra7 Qb6+ Kc8 Qa5 Re3 Nc6 Kd7 Re6 Bb8 Qfc5 Bc7 Nb8+ Kc8 Qcb5 Qf4 Bg6 Re5 Bc2 Be1 Bg6 Bg8 Qaa4 Rh5 Bgd4 Bf2 Qa3 Qfd6 Rhe7 Bf7 Re2 Qf6 Bh7 Bcg3 Be4 Qe5 Rd7 Qdh8 Re7 Kd8 Rc7 Qhf6 Qb6 Ke8 Qba5 Qd8 Bb6
N5bB/1r1n4/pQnQ1PB1/2PRnB2/kP6/1NKR1RbB/4P2q/1b2q2r w - - 0 1 illegal: No proof kernel
K4Q2/4N1QP/1n3rqR/bPP1N1p1/k1B1Rn1Q/1R4qR/2P2rbB/1b5r w - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 e5 Kf3 a5 Ke4 g5 Kd5 e4 f4 d6 h4 Kd7 b4 e3 f6 e2 b6 e1R h6 a4 f5 a3 f7 a2 h5 Re6 h7 Be7 f8Q Qe8 f6 Qg6 f7 Rf6 b7 Bd8 h6 Ba5 Rh3 Ra6 Qg7 Rf2 f8Q+ Ne7+ Kd4 Kc6 Bf4 d5 Bh2 Bg4 Nf3 Nd7 b8R Be6 Qe1 Nb6 Bc4 Bg8 Ke5 d4 Nc3 d3 Nd5 d2 Qh1 Bf7 Re1 d1B Re4 Be2 Kd4 Bf1 Rb7 Bg2 Qe1 Rf1 Qh4 Rh1 Rb8 Rg8 h8R a1Q+ Nc3 Qe1 Nd5 Qg3 Rb7 Qf5 Rb8 Ng6 Ne7+ Kd7 Rh7 Nf4 Ne5+ Kc7 Be2 Ba2 Bc4 Bb1 Rh8 Nh5 Rh7 Qg6 Rh8 Na8 Kd5 Re6 Rb6 Rf6 h7 Rf2 Re6 Kb7 Rf6 Ka7 Kc6 Nf4 Re6 Nb6 Rd6 Qf7 Rh6 Qf5 Qff6 Ra8 Rb8 Qg6 Qf8 Na4 Rb5 Nb6 Kc7 Ka6 Q6g7 Ra7+ Kb8 Rd7 Ba2 Rd6 Bb3 Nc8 Ka8 Rf6 Rb8 Rb6 Rb7 Kb5 Bc4+ Ka4 b5 Qa3 Rd7 Qg3 Rd3 Rf6 Rb3 Nb6+
q1N3k1/Q3bqP1/1bKnQr2/2R4R/2b5/qRp2P1P/NNNB1P2/2rn3B w - - 0 1 illegal: No proof kernel
n2K1Q2/B3NP2/kB1q2n1/r2Brb2/R1qP4/1RN4P/Q2pBPr1/4q1bR w - - 0 1 illegal: No proof kernel
1n1k2nr/2b2pQ1/2B1PRqn/2K1BP1q/2P3b1/1PRB1q2/N2Br3/3NQ2Q w - - 0 1 legal: proof: g4 e5 d4 h5 gxh5 c5 dxe5 b5 Bh3 c4 Bf1 c3 bxc3 b4 Bf4 b3 axb3 Qf6 Bc1 Qd8 Kd2 d5 Ke3 g5 Kd4 a5 h4 g4 e4 g3 f4 g2 c4 a4 h6 a3 c5 a2 c4 Ra7 h5 Nf6 f5 Ba6 h7 Qa5 e6 Rc7 e7 Rd7 h6 Qe1 c6 Rc7 e5 Nfd7 Ne2 g1N Nec3 Bb7 Bd3 Qg3 Qe1 Nh3 Bd2 Nf6 Kc5 d4 Nd1 Ng8 Nbc3 Qg6 Rc1 a1Q Na2 Nf2 Rc3 Ng4 Rh2 Rd7 c7 Bf3 c8Q+ Rd8 Qb7 Rd6 Ne3 Re6 Nd1 Be2 Qbh1 Qc1 Bf4 Qe3 Rg2 Qg3 Bd2 Qf3 Rg3 Kd7 Rg1 Bg7 e8B+ Kd8 Bc6 Bf6 Rg3 Bh4 Rh3 Bg3 Rh4 Rd6 e6 Rd5+ Kb4 Re5 Rh5 Re3 Kc5 Bc7 Rg5 Qg7 Rg6 Re4 Bb1 d3 Rf6 Qg6 Be3 d2 Bd3 Bf1 Bg5 Re2 Be3 Bh3 Bf4 Ne7 Be3 Re8 h8Q Ng8 h7 N4h6 Qg7 Bg4 h8B Rf8 Nf2 d1Q Bd2 Qc1 Nd1 Re8 Bf4 Qd2 Be5 Qdg5 Bf4 Rf8 Bd2 Q5h5 Qh7 Qgg5 Rg6 Ne7 Be5 Rh8 Rf6 Qgg6 Qg7 Neg8
1b2B1RB/5pKb/4P1R1/r2nPrRN/2k1q1PQ/n1P3qN/1qR1r3/3B2Q1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 h5 b4 d5 g4 a5 e4 h4 c6 a4 c7 h3 b6 a3 b5 a2 g6 h2 g7 Nf6 g8R Ra6 b7 Ra7 b6 Rh4 Nd2 Nh5 Be2 Ng7 Nh3 Nd7 b8R Bd6 b7 Rh5 Nf1 Ra5 Ng3 Qh4 Qg1 Ne8 Rg6+ Nef6 Bb2 Nb6 Rc1 a1Q Bd1 Rf5 Nh5 Qg3 Ra8 Nc4 b8Q Ba6 Qh8 Na3 Rag8 Bd3 Bc3 Qb2 c8B+ Ke7 e6 Bb8 Qh6 Kd6 Qg5 Kc6 Qh4 Kb5 Bd7+ Kb6 Qf2 Ka6 Rf1 h1Q Be8 Qhf3 Qg1 Qfg2 Rf3 Kb6 Ke3 Kc5 Bd4+ Kb4 c3+ Kc4 Rc2 Qh1 Bc5 Qhg2 e5 Qh1 Bf8 Be4 Bg7 d4+ Ke2 d3+ Ke3 d2 Bh8 Rf4 Rg5 Bh7 R5g6 Rf5 Rg5 Nd5+ Ke4 Qhh2 Rf4 Qhf2 R5g6 Qfb6 Rf1 Q6b4 Rf3 Rf6 Rf5 Qa4 Rfg5 Rf2 Bf3 d1R Kf5 Rh2 Be2+ Rd3 Bd1 Re2 N3f4 Qc6 Nh3 Rf3+ N5f4 Nc7 Kf6 Qe4 Kg7 Nd5 Nh5 Rf5
1B1q2k1/1n2Pr2/1p1r1R1P/QK1RNbn1/b6R/1P2nQ2/1rPB4/1q1BN2B w - - 0 1 illegal: No possible last move
r2R1Q2/Rr2Pq2/Pbq1kn2/Pb1N2BN/1Q1B3Q/6Kp/Bqn1n2P/3Q4 w - - 0 1 legal: proof: d4 a5 f4 b5 b4 g5 bxa5 e5 dxe5 b4 fxg5 b3 cxb3 Na6 b4 Nb8 b5 Be7 Qb3 Bc5 Qd1 Bf8 Kf2 Ke7 a4 c5 e4 h5 g4 f5 e6 d5 a6 d4 g6 h4 e5 d3 g5 f4 g7 h3 g6 c4 Ne2 d2 Nbc3 f3 Ng3 Qc7 Nh5 Nh6 g8Q Nc6 g7 Bd7 Kg3 f2 Nd5+ Ke8 e7 c3 Bc4 f1Q Ba2 c2 Qh7 Qc8 g8Q Qf7 Qgg4 Ng8 Qb4 Nf6 Bb2 c1Q Bd4 Qc2 Qe4 Rb8 Qh4 Rb7 Re1 Bg7 a5 Bf8 b6 Qb2 Rc1 Qc7 Rc3 Bh6 Rd3 Qc8 Re4 Be3 Rg4 Qa8 Rg7 Bg1 Be3 Rf8 Bg5 Nd4 Rh7 Bc6 Rg7 Kd7 e6+ Kc8 Rh7 Nc2 Rg7 Rd8 e8Q Bb5 Qef8 Be3 e7 Kd7 Rg8 Ke6 Rb3 Rbb8 b7 Bb6 Rc3 Rd7 Rc7 Rbd8 b8B Qc6 Ra7 Rb7 Be5 Ra8 Qh1 d1N Bd4 Nc3 Qd1 Qc8 Qg7 Qc5 Rd8 Qc6 Qf8 Ne2+
3q4/B2P4/P2k4/1r1nr1QR/2KbbQ1p/1n1BN1QP/Nq3P1R/qn1Q3N w - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 d5 exd5 b5 g4 b4 gxf5 b3 cxb3 Kd7 b4 Ke8 b5 Qd7 Nh3 Qd6 Ng1 Qd8 Ke2 Kd7 Kd3 g5 a4 e5 d6 c5 b6 h5 a6 g4 a5 e4+ Kc4 g3 d4 e3 h3 g2 d5 e2 b7 e1N f6 h4 a7 Qe7 a6 Qe8 f7 Nc2 Ra5 Rh5 Ne2 g1Q Be3 Ne7 Rh2 Bg7 f8Q Qd8 Nbc3 Bd4 Ng3 Nbc6 b8Q Re5 Nh1 Bb7 Na2 Qg7 Bd3 Na3+ Kb3 Qg1 Qf4 Nb1 Kc4 Qf1 Rb5 Qe2 Ra5 Qb2 Qg3 Nb4 Rb5 Nc2 Ra5 Na1 Rb5 Ke8 d7+ Kf8 d6 Nb3 Qc7 Rb8 a8N Be4 Nb6 Nd5 Ra5 Kf7 Qf4+ Ke6 Qg3 Qc8 d8Q Qa1 Qdg5 Qd8 d7 Rb7 Kb5 c4 Qb8 c3 Kc4 c2 Q3f4 Ndc3 Nd5 c1Q Qfg3 Qcb2 Rb5 Rf5 Qbf4 Re5 Rc5 Kd6 Ra5 Ba7 Bd4 Bb6 Ne3 Nd5 Rb5 Bc7 Ba7 Bb6 Rb4 Bd4 Rb6+ Kc7 Rh6 Rb5 Rh5 Kd6
2bb1k2/n1QP2p1/6P1/RnqN1q2/1r1Q1N1K/Q1P1Q3/1qr1PN2/1BBR1n2 w - - 0 1 illegal: No possible last move, all moves rejected
Rq2RN2/3pb2B/3Q1q2/2P2rBK/R2rPb2/qP2Rb1B/1QN2kP1/4n1n1 w - - 0 1 illegal: No possible last move
7B/q1P2B2/b2QR3/r2P2QB/1nn1N1BR/1rP1qnp1/Q2qP2N/1K4bk w - - 0 1 illegal: No proof kernel
N6q/1BP1K1pQ/b2N1PN1/4R1NR/Pn2qb2/3q3n/2QPkr1n/1QBr4 w - - 0 1 illegal: No proof kernel
nb3n2/Qp1N4/N3B2P/1QRPbQ1q/1B2P3/1R2nrP1/2K1NQqk/3r1b2 w - - 0 1 illegal: No proof kernel
1n1RK3/3Q2P1/qP2RN1r/1NN5/r1rPBQ2/2r3PB/kn2pN2/b1B3rb w - - 0 1 illegal: No proof kernel
1bbQq1Qr/N3pn1R/7n/P1P3P1/b1BNK3/1Q3RBP/3Q1r2/1bR2bk1 w - - 0 1 illegal: No proof kernel
2NK4/b1pbnP1Q/RPR1P1bq/B2QQb1n/b2N4/2R2R2/P4r2/2rB3k w - - 0 1 illegal: No proof kernel
1kn2R1b/1Nrn3n/6b1/PrB1PRP1/1PQ3R1/K2B2qp/1N4n1/Q2bN2R w - - 0 1 illegal: No proof kernel
1N4Qr/1q1KQ3/1b2R2P/B1N2R2/bbb2Q1P/1QpnP3/BrP1n3/1Nnk4 w - - 0 1 illegal: No possible last move
3b2r1/3nQK1k/R1p5/1q2PbP1/2BBQPN1/4RN2/bP2NB1n/brn1B3 w - - 0 1 illegal: No proof kernel
Q4q1k/1K2QbbP/1b3br1/1n1P3p/2rP1R1r/3BN1R1/2QPnB1Q/N2R4 w - - 0 1 illegal: No proof kernel
nNk4n/1q4P1/5B2/r6B/1p4nP/1Qn1RPrr/1RQ1b1P1/BNbB1RK1 w - - 0 1 illegal: No proof kernel
4rNB1/5pPq/r4nNQ/bb1kN3/1P5R/N3P1Pn/RB3Qrb/3Kb1R1 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 d4 h5 b6 a5 e6+ Kd6 g6 c5 e7 a4 e8R h4 e3 a3 b7 c4 g7 h3 Bb2 a2 Qh5 c3 Ne2 c2 Qh6+ Be6 Na3 c1B Rg1 h2 Nf4 h1R Bd3 Rh2 Bh7 Be7 Ng6 Ra6 Kd1 Nd7 b8N Nb6 Nc6 Bd2 Nce5 Nf6 Bg8 Bd7 Rf8 Bb5 Re8 Kc7 d6+ Kb7 d5 Be1 d7 Qc7 d6 Nbd5 d8Q Nf4 d7 Nh3 Ng4 Kc6 N4e5+ Kd5 Qc8 Bc5 d8N Bb6 Qf5 Ba5 Ne6 Qc4 Rf8 Qe4 Qf2 Qh4 Ra8 Qe4 Rc1 a1B Rc4 Qf5 Rh4 Qe4 Bh7 Re8 Bg8 Qf5 Bc1 Bd4 Nef8 Bdb6 Bb2 Bc7 Nh8 Qh7 Nhg6 Rh1 Ng4 Bf4 N4e5 Bh2 g3 Rae6 Rf1 Rg1 Ra7 Rg2 Rg1 Bd8 Nb1 Bb6 Ra2 Ba5 Na3 Ra6
6Nr/3nP1Q1/1kP1b2N/N3n3/Rrn1KnP1/r2PbBRB/q2p4/3N2BQ w - - 0 1 illegal: No proof kernel
4brBN/pb1qr1Q1/1RNPn3/8/2PNK2b/B2n1P1k/1PN1B3/r4RQb w - - 0 1 illegal: No proof kernel
5n2/qN3k2/2b2P1P/p1b1Bn2/2nr1RBN/3B1NQP/Q1q1K1Pn/B1R3r1 w - - 0 1 illegal: No proof kernel
6Qn/2Q1qq2/BBn1PQbK/6QP/2P1n1R1/4bRR1/N1k2rpP/1n1Nr3 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 e4 f5 b4 d5 c6 a4 c7 a3 c3 a2 b6 d4 b7 d3 b5 d2 b6 Qe7 Qg4 d1N Qg5 Nf2 Ne2 Nh6 Rg1 Nc6 b8R Nf7 b7 g6 Bb2 Bh6 Nc1 Rf8 Rg4 Nh8 Ba6 Bd7 c4 Be8 Nc3 Bf7 Rb1 a1N Rc8 Nc2 b8Q Na3 N1a2 Be8 Rbg1 Nb1 R1g3 Ra7 Kf3 f4 Nd1 Rf6 Qb5 Bf7 Qh4 g5 Rf8 Bg6 Bd4 Ra8 Bb6 Re8 Ke2 f3+ Ke3 Nd3 Qb2 f2 Qa1 f1Q c8Q+ Qd7 Qc7 Rf2 Rff3 Qe7 Rgf4 g4 Qg5 Nc5 Qb2 Nd7 Qd4 Nf6 Qdd8 Kf7 e6+ Kg7 e5 Ne4 Rh3 g3 Rg4 g2 Kf4 Qd7 e7 Kf7 Rgg3 Ke6 Kg4 Qe1 Kh4 Qe3 Rg4 Qf4 Rhg3 Qf7 Qc1 Bf4 Qc3 Kf5 e6 Rf8 e8Q Qde7+ Kh3 Rf1 Qc1 Re1 Qd4 Nc5 Qf6+ Ke4 Kh4 Nb8 Rg5 Be3 R5g4+ Kd3 Qec8 Nc6 Q8b8 Rd8 Qa8 Rd4 Qg8 Rf4 Kg5 Ne4+ Kh6 Rf5+ Qg5 Rf4 Qb2 Rf5 Qf6 Kc2 Rh3 Rf4 Rfg3 Rf2 Rf3 Rfe2 Rhg3 Rf2
2N4B/2RqQb2/nbBPn1Q1/r4bB1/2KqR3/4bP2/rRPkP2p/R2N4 w - - 0 1 illegal: No proof kernel
2kN1nQ1/qRb1R3/P1BP1p1K/PB2n2Q/8/2r1B1Nb/n2qNBPr/3n4 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Ke3 c5 Kf4 b5 e4 h5 a4 h4 d4 b4 d6 c4 e6+ Ke8 d7+ Ke7 g6 b3 Kg5 h3 d5 c3 e5 c2 a6 b2 g7 h2 a5 Nh6 g8Q Ra7 Nc3 b1Q Ne4 Qa2 Rb1 Rh7 Be3 c1N Rb7 Qb6 d8B+ Ke8 e7 Qd2 Ne2 Ng4 N4g3 Nd7 d6 f6+ Kg6 Na2 Bf2 Qbd4 Bb6 Rh3 Rg1 h1N Be3 Nhf2 Rh1 Rh8 Rh7 Qc5 Rg7 Rh2 Rf7 Ne4 Bf2 Qc7 Bbe3 Nec3 Rg7 Qc1 Qdd5 Qd2 Qf3 Qb8 Qf5 Nd1 Qh5 Nc5 Rf7 Ne6 Rg7 Qc7 Kh7+ Kd7 e8N+ Kd8 Re7 Bh6 Ng7+ Nf8+ Kh8 Bd7 Ne6+ Kc8 Nd8 Bf5 e6 Ne5 Qh7 Bh3 Qg8 Bg5 Kg7 Bh4 Kh6 Qb8 Rb4 Rc7 Rb7 Rc2 Red7 Rc5 e7 Qa7 e8B Rc4 Re7 Rc3 Nf5 Bg3 Bc6 Bh4 Ned4 Bg3 Bfb5 Bh4 Ne2 Bg3 Be1 Bf2 Nfg3 Bg1 Bg5 Be3 Bf2 Bb6 Bge3 Bc7
KQ2B1q1/1bBBnr1P/P1R4P/3N1N2/Q2n1rk1/b1NPq1pn/8/R2n1N2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 c5 Ke4 g5 f4 b5 h4 e5 a4 b4 d6 c4 Kd5 c3 h6 e4 a6 e3 d3 c2 h7 g4 a5 g3 a7 e2 a6 e1N h5 b3 f6 b2 f5 Qe7 f7 Nf3 h6 Nh2 f6 Qe8 Nd2 b1N Ne2 Nf3 Nc3 Bg7 f8N+ Kd8 f7 Qe3 d7 Ke7 d8N Kf6 Nb7 Kf5 Ng6 Ng5 f8Q+ Nf7 Bh3+ Kg5 Nf1 Nc6 Nd6 Nd4 Bd7 Ne7+ Kc5 Be5 Nf5 Bd6+ Kb6 Ba3 Nf4 Rg8 Qd8 Rg7 Nfd5 Rb8+ Kc7 Rb4 a8B Ra4 Bd2 c1Q Kb8 Qb2+ Bb7 Qa2 Ka8 Qc4 Qc2 Kg4 Bbc6 Ng5 Qc7 Qa2 Qb8 Nh3 Bc1 Rc4 Qa4 Rf7 Be8 Rb4 Bcd7 Qc4 Rh2 Qb3 Rc2 Qa2 Ne2 Nc3 Bd2 Nd1 Rc6 Rc4 Ba5 Rb4 Ndc3 Qae6 Bc7 Qg6 Nf4 Qg8 Nd2 Ne2 Nfd5 Rf4 Nf1 Nd4 Re6 Qe4 Rb6 Qe3 Rc6 Bb7+
NN1k2BQ/2n4p/n3qqQP/3b1R2/n3P1R1/PNrPb2N/1BK2n2/1r5B w - - 0 1 illegal: No possible last move
1Rb1NBB1/1q2qPQ1/2P2n2/brnKbP2/BbB3N1/3pr2Q/1P1NR3/6k1 w - - 0 1 illegal: No proof kernel
3n4/n2P2Pr/1qQ2P1r/BbBbN2R/bP1N1pB1/Q2q2B1/3k1KN1/4b1R1 w - - 0 1 illegal: No possible last move, all moves rejected
6B1/2np1PN1/4n2B/KR2r1Pq/3b3P/kPn1QR2/b3Qrq1/QRn1Q2N w - - 0 1 illegal: No proof kernel
q1B3qB/k1P2nrN/1RbbQ1R1/2PN1N2/2P3p1/1PBQ4/5n2/b2KbNr1 w - - 0 1 illegal: No proof kernel
B1n4Q/B2BrrP1/1P2N1b1/P1q1Rq2/Q3p2q/R1bbPk2/Q2B4/KN2r3 w - - 0 1 illegal: No proof kernel
3N4/1b1nrP1p/1b2KbqQ/4R2B/4q1QP/N1rN2BB/2PP2q1/3R1Nkr w - - 0 1 illegal: No possible last move
r1N1r1B1/1NN2Rr1/QPbpN1n1/B1bb2Pq/k2b4/4R3/K1PP2Q1/bQ6 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 Na6 b4 Nc7 bxc5 b4 Rh4 Bh6 Rh1 Nb5 axb5 Bf8 g4 a5 f4 h5 b6 e5 g6 b3 g7 a4 c6 d6 f6 h4 f5 b2 f7+ Ke7 f6+ Ke6 c7 Kd7 Ne2 Kc6 Ng3 h3 Ne4 a3 Bc4 a2 Nbc3 b1R Bb2 h2 Nd5 Rb8 Bc3 Rb7 Nc5 e4 Ba5 e3 Rf1 Rb8 Nb7 Ne7 g8Q Be6 c8N h1B Nc7 Bg7 f8N e2 f7 Bed5 Nfe6 Bd4 f8Q Ng6 Rf7 Qg5 Qgg7 Rb4 Qb1 Qh5 g5 Rh7 Qe5 Rg7 Qe4 Rb3 Qg2 Re3 Qh8 Ra8 Qh7 Nf8 Qd3 Ng6 Bb3 Re5 Qa6 Re3 Kf2 e1B+ Kf1 Rf3+ Ke2 Bef2 Kd1 Re3+ Kc1 Bc5 Kb2 Bg1 Nf8 Re8 Nfe6 Bgf2 Qbg1 Bfe3 Re1 a1B+ Ka2 Bed4 Re3 Qd1 Qa7 Qf3 Qb1 Qh5 Na6 Kb5 Bc4+ Ka4 Nac7 Be4 Qa6 Bc6 Bd3 Nh8 Bh7 Ng6 Bg8 Rh7 Qh3 Rg7 Qhf1 Bhe4 Qg2 Bed5+
1b2b1B1/3qRR1R/K1k3qB/5rB1/P1Prp3/4B1NQ/1N1qPqP1/1Q1q2n1 w - - 0 1 illegal: Other
4Rn2/Bbp3PR/8/3K1bB1/QPP1Q1bP/bq1bR3/2rNnkBB/1q2N3 w - - 0 1 illegal: No proof kernel
2Q1NR2/3qb2B/N7/1RPnnK1R/6R1/3P3p/qPb1k2P/NQBnbn1r w - - 0 1 legal: proof: f4 a5 a4 g5 fxg5 b5 axb5 c5 d3 d5 Kf2 c4 dxc4 d4 c5 d3 Ke3 d2 Kf3 Ra7 Kf2 Rd7 Ke3 Rd3+ exd3 Kd7 Ke2 Ke8 Kf3 Kd7 Ke4 Ke6 g4 h5 c4 h4 g6 h3 g7 f6 g5 a4 g6 a3 b6 a2 c6 Qc7 b7 Nd7 b8N Ne5 c5 Qd7 c7 f5+ Kf4 Kd5 Bg2+ Kd4 Nc3 e6 Ne4 Be7 Nd6 Nf6 Ne8 Rf8 g8R Rf7 Qf1 d1N g7 Rf8 Kg5 f4 Na6 f3 Rh8 f2 g8R Bb7 c8Q Bc6 Rg6 Ba4 Rh5 Bc2 Be4 Nd5+ Rf6 Rf7 Qe1 f1N Bh7 Ng6 Kg4 e5+ Kg5 e4 Ne2+ Ke5 Rg1 e3 Nd4 e2 Rg4 Rf8 Qf2 e1B Qg1 Rf7 Nb3 Rf8 Rb1 a1Q Rb4 Qa5 Na1 Qa2 Rb5 Rg8 Qh1 Kd4 Qg1+ N5e3 Qh1 Ne5+ Kf4 Rg6 Rff5 Re6 Rf8 Nd5+ Kf5 Bd2 Nb3+ Ke3 Qg1+ Ke2 Ra1 Qb1 Ra4 Qa2 Na1 Be1 Rg4 Qb7 Rg7 Rg6 Qh1 Rg1 Rg4 Qd7+ Ke4 Bc3 Bh6 Nd1e3 Qf3+ Ke1 Bf4 Rh1 Qd1+ Kf2 Qb1 Ke2 Bg5 Nd1 Bc1 Qd6 Kf5 Be1 Rb6 Qc7 Rb5 Qd7+
3B2r1/3B1p1r/kN2qP2/Nn3P2/K1q4R/3RP3/PBNN2nr/QqQ2b1r w - - 0 1 illegal: No proof kernel
4q3/1n1N2q1/kN1BBpRr/3qrP1Q/1qPPQKR1/3B4/3P1nnb/B5Q1 w - - 0 1 illegal: No possible last move
1Kn2Bk1/1B1r2PR/P1qQ1b2/q1Rbb2N/P3R3/1p4N1/1PqB1n2/1B1Q2b1 w - - 0 1 illegal: No proof kernel
2R1N2r/4r1q1/N1b1Pq1p/Bq3N1Q/1QR1Bbb1/3P3P/3nP3/qBN1k1K1 w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 d5 Ra2 d4 Be3 d3 Kf2 Nd7 Bc1 d2 Ra6 Nc5 Ra1 Nd3+ cxd3 Bb7 Nh3 Ba6 Ng1 Bc8 b4 Ke7 g4 Ke6 g6 Kd5 g5 Kd4 b6 c5 b7 f5 b8N a5 b5 c4 b6 a4 b7 a3 g7 c3 g6 a2 Na6 c2 b8Q f4 Bg2 h6 Be4 f3 Nc3 Qd5 Qb4+ Qc4 h3 Bb7 Qf1 d1B Bd2 Bc6 Rc1 a1Q Na2 Nf6 g8B Re8 g7 Re7 Bgd5 Bd7 g8N Bg4 e6 Qb2 Qg2 Bg7 Kf1 f2 Qf3 Qc3 Kg2 f1Q+ Kh2 Bf8 Qf5 Qa1 Qh5 Qb2 Bc3+ Ke3 Nf3 Kf2 Nd4 Qb5 Nf5 Bg7 Qa4 Qa1 Ba5 Qc3 Qb4 Ke1 Rg1 Bf8 Rg3 Qf4 Bb3 Qg5 Kg1 Qg7 Ba8 Ne4 Nf6 Nd2 Ne8 Qcf6 Be4 Rb7 Rf3 Bd6 Rf4 Rd7 Bed5 Be5 Rc4 Bf4 Be4 Rb7 Ra1 c1Q Bc2 Rd7 Bb1 Re7 Rc8 Qa3 Nc1 Ba4 Ra2 Qac3 Rc2 Qa1 R2c7 Qb8 Rc2 Bc6 Rc4 Qb5
B5rB/2qpq1q1/1N1Bb2n/b3Qq1k/1K1PRP1P/Q3P3/4n3/R2NQB1n w - - 0 1 illegal: No possible last move
Q1rQB1q1/b4p2/N1N4R/BQ3R2/N3rb1q/1q1KPP1P/3P1q1N/1b3n1k w - - 0 1 illegal: No possible last move
QrQ5/2n1Nb1N/r3r1Nb/kPBNP2r/p1n3r1/P5KR/QRP4n/1B6 w - - 0 1 illegal: No proof kernel
B1Q1qn2/P3NkNP/4nrn1/N1B3B1/Qr4p1/R2n3P/nN4P1/1K3Rbn w - - 0 1 illegal: No proof kernel
6br/5p1N/rNRKRQB1/B1bPPr2/1Q3PP1/1bQ1r1Q1/n1nN4/2k1n3 w - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 e5 hxg5 Qd6 dxe5 d4 c4 Qd5 cxd5 Kd8 Qb3 Ke7 Qd1 Ke8 Kd2 Ke7 Kd3 h5 Ke4 c5 b4 a5 g4 a4 f4 h4 g6 a3 e3 c4 b6 c3 b5 d3 b7 h3 b6 a2 e6 Kd6 e7 Kc5 Ke5 Kb4 e8N d2 g7 c2 e4 Kb3 Nc7 h2 Nf3 Na6 b8Q Bf5 b7 Nf6 g8Q Nh7 Qe1 d1B Bd2 Kb2 Ba5 c1N Qc8 Nb4 b8Q Ra6 Ng5 Bb3 Na8 Bc5 Qgd8 Nc2 Nb6 Bd4+ Kd6 Bg6 Rg1 h1R e5 Rh5 Bd3 Be4 Qf6 Bf5 Nf3 Ng5 Qg3 Bh7 Nbd2 Bg8 Re1 Na3 Bg6 Nc2 Ng1 Nf3 Nh3 Rf5 Ng5 Nh4 Re2 Nf3 Nh7 Nfe1 Rg2 Ne2 Rh2 Nc3 Rc1 a1R Rh6 Ra3 Qc4 Na2 Qbc8 Bf2 Qb4 Bd4 Qc7 Na1 Rc6 Nac2 Kd7 Kc1 Re6 Ba4+ Kd6 Re3 Qcc3 Bb3 Kc6 Rg5 Be4 Bc4 Qg6 Bf1 Rd6 Re2 Kd7 Rh5 Rc6 Re3 Kd6 Bc4 Qg5 Bb3 Re6 Ng2 Qf5 Ne1 Qf6 Rg5 Bg6 Rh5 Nc8 Rf5 Nb6 Bc5+
B7/Rbp2kB1/6nB/1r2Q3/1NKb2n1/PPNb4/2P1Q2P/brQRQrr1 w - - 0 1 illegal: No proof kernel
N1B4Q/1n2n3/kq1R1n1R/1p2r2P/PpP2b2/B1Bb2Pb/rN4Q1/2R1K1R1 w - - 0 1 illegal: Other
3Q4/bk3N1Q/1N1P2n1/B1n2pq1/RPB2pn1/3B1R2/2Pr1bKP/r2b1N1B w - - 0 1 illegal: Other
1B4K1/br1PpB2/1N1b1nR1/1R2rq1N/1pQ3PN/N1P5/P2Q4/kbnnR3 w - - 0 1 illegal: No proof kernel
rRKBRQ2/2PBr3/n6P/1bqP3B/3Bn2R/2bbQ3/2P1p2p/r2NN2k w - - 0 1 illegal: No proof kernel
1R2b3/2p1nbq1/Rp2P2B/P3Bn1P/K2BrRr1/N2nNQ2/k2bBP2/2Q5 w - - 0 1 illegal: No proof kernel
2b3Q1/b1p2RPr/PBbR1R2/rk2K3/1n1PpQB1/1P5Q/2Nn2R1/1qr4N w - - 0 1 illegal: No proof kernel
R6Q/1PR1P3/BkrB1pb1/N1n2n1Q/1NR5/nPb1P1r1/Bp5q/R2b1K2 w - - 0 1 illegal: No proof kernel
rq1Q4/PrP1N1Rp/2B5/2B3Q1/N2p1r2/P4n2/KRR3nP/bNnb2kN w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 f4 c4 fxg5 c3 dxc3 Nc6 c4 Nb8 c5 Bh6 Qd4 Bg7 Qd1 Bf8 Kd2 Kf7 Kc3 b5 Kb2 d5 c4 e5 g4 e4 f6 Ke6 a3 Ke5 a6 e3 g6 Ke4 a7 b4 g5 e2 f7 e1N g7 b3 c6 Ba6 c7 Be7 f8R Nc2 c8N Bb5 g6 Bc6 c5 Nd7 Be3 Ne5 Bg2+ Nf3 Nh3 Qd6 Rf7 Qb8 Nb6 Nd4 Na4 Nh6 g8N Ne2 g7 Nf5 Ra2 Nh4 Rg1 Bf8 Rb7 Nc1 Ne7 Be8 g8Q Bh5 c6 Bg7+ Bd4 Bf6 Bh1 Ng2 Qg5 Rf8 c7 Be5 Ka1 Rf4 Rb2 Bg7 Bc5 Bd4 Nf2+ Ke3 Nbc3 Bg4 Rc2 b2+ Kb1 Ne2 Ka2 b1R Rb5 Rb4 Nb1 Bh5 Ra5 Rb7 Rb5 Bg4 Ne4 Bh5 Ng3 Kf2 Rbb2 Ne3 Rb5 Ba1 Rbb2 Bg4 Qd4 Bh5 Qh8 d4 Qd8 Ng2 Rd1 Nge1 Bg2 Kg1 Nh1 Nh4 Bc6+ Ng2 Rd3 Bg4 Rg3 Nf3 Rd2 Bf5 Rg4 Bc2 Rg3 Bd1 Rdc2 Re4 Qh4 Rf4 Rg7 Nd2 Qg3 Nf3 Qg5 Nc1+
6k1/1Q2Rr1q/3N3b/NNp2P1r/RQBPP1nN/BP1p1n2/3qb1K1/1q1Q4 w - - 0 1 illegal: No proof kernel
1NRq3k/1Q2Q2r/4K1P1/2n1p3/bb1BB1B1/P1P2p1b/2qP2N1/nrBN1R2 w - - 0 1 illegal: No proof kernel
6b1/2BB3N/1QnPRK2/q7/1B1r1bN1/nn1RpPPR/Pp1Rr3/1kq1Q3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 a6 b5 f6 c5 g3 c4 f3 c3 d6 e6 d7 c2 a7 h4 g6 h3 d5 h2 g7 Ba6 f7 Qa5 d8R Rh4 Nh3 Nh6 g8Q Bd6+ Kf6 e5 f8B e4 Na3 Kc3 Ng5 b4 Bh3 b3 Qg6 b2 Bf4 c1N Nh7 Nf5 Nc2 Nd4 Ne3 Nbc6 Ng4 Bc4 Qe1+ Kc2 Rd7 Bc7 Bb4 Re8 a8R Nb5 Ra6 Nb3 Rd1 Na3 Rd3 Bb8 Bc7 Re7 Rf1 h1Q Qh6 Qg1 Rd8 Qe3 Rh1 Qc1 Qhe3 Kb1 Qb6 e3 Rh2 Re4 Rd6 Rh5 Re6 Rd4 Rhd2 Rh4 Ra8 Ba7 Rh8 Bb8 Bd8 Bd6 Bc7 Bf4 d6 Bd5 Bf1 Rh2 Be2 Na1 Bd1 Re2 Ba4 Nb3 Bb5 Ne7 Bd7 Bc4 Ng5 Nc6 Rh3 Bd5 Nh7 Bc4 Re8 Bf7 Re6 Bg8
2KbQ2n/B1R1B3/r2PP2N/Q1p1q3/PR1P4/1Bnp3n/B4R2/3qkbrN w - - 0 1 illegal: No proof kernel
Q1q1r1k1/1R2q3/Q1p2BPP/K2N2n1/pQ2qbN1/Q1P1n3/1b3P2/B3r1RB w - - 0 1 illegal: No proof kernel
2R2n2/R2b2P1/K2BQbk1/N2P4/N3pr1Q/1r1B1qn1/Rp1NNPP1/2q3r1 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 c5 Kc4 e5 Kb5 h5 d4 b6 a4 e4 g6+ Kf6 g7 c4 a6 c3 a7 c2 d6 h4 d7 h3 a5 h2 d5 Bb7 a6 Qe8 Ba3 c1R Qg4 Bc5 Bd3 Qf7 d8N Rh4 Ne2 Bc8 Ra2 Rg1 Nb7 Nh6 Na5 Bd4 Nd2 Nd7 Bd6 Rb8 a8Q Nf8 a7 Bd7+ Ka6 b5 Qc6 b4 a8N b3 Nb6 b2 Na4 Rb3 Qh3 Kg5 f6 Rf4 Qh4+ Kg6 Qb6 Nf5 Qc6 Qe8 f7 Bf6 Qc8 Qe5 Qe8 Ng3 Qe6 Rd1 Rg1 h1Q Rf1 Qf5 Rg1 Nh7 f8R Rb1 Ra8 Nf8 Ra7 Qh5 Re1 Qf3 Rc1 Qd1 Rc8 Qc2 Nc6 Rg1 Na5 Qc1
1rk3r1/Q3bBPp/5Pqq/Q1n2K1P/2nNNpR1/R2P3Q/bQ1rR3/2B5 w - - 0 1 illegal: No possible last move
B3qNR1/RQ1b1PR1/P6n/2B1q3/2KppPN1/1qP1r3/N1k2n2/Qr1Rb3 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 h4 Ke5 a4 Ke4 f4 e5 f6 g5 c6 d5 h6 b5 c7 g4 h5 g3 f7 g2 h7 Nf6 h6 Rg8 h8N Qe7 a6 Nh7 a7 Nf6 h7 Bd7 c8R Nc6 a5 Nd4 Nh3 g1Q Ba3 Rb8 a8Q Qg5 Bc5 Qe8 Qb7 Nf5 Ng6 Nh6 h8R Nfg4 Rh7 Nf2 Rg7 b4+ Kb3 Be7 Nf8 Qf5 Bb5 Bh4 Bc6 Rh8 Qc1 Rh7 Rd1 Qf6 Ka4 b3 Kb4 Qg5 Qa3 b2 Qc3 Qh5 Ra4 Qe2 Qa3 Qe3 Qa1 Qd4+ Kb3 Ke3 Nc3 e4 Na2 b1Q+ Ka3 Ke2 c3 Qde5 Rd8 Qc2 Kb4 d4 Kc4 Qb2 Qb6 Ke3 Ba8 Qa3 Qa6 Rb1 Qb7 Bg3 Rf1 Kd2 Rd1+ Kc2 Rb8 Nd3 Nf2 Bh4 Ng4 Be1 a6 Nf2 Rb4 Ng8 Rc8 Rh3 Rc7 Nh6 Rb6 Qb2 Rbg6 Rd3 Rg8 Re3 R6g7 Q8e7 Qb8 Qa3 Ra7 Qe8 Qb7 Qb3+
3BB3/nq2RP2/Pr1P2pB/QRN4r/1PN2KQr/B1p2R2/2b1qb2/6nk w - - 0 1 illegal: No proof kernel
n2BN3/1BqQP3/1b2P3/NPQ2PNn/2q1KR1R/1b1p4/p2B1Nkr/2r2n2 w - - 0 1 illegal: No proof kernel
2qrq2B/bR2pB2/PP1P1pB1/2K1Pb1Q/2n3N1/7N/1BR1qQ2/2rQn2k w - - 0 1 illegal: No proof kernel
q1R5/nN1qpb1P/r4rB1/2BQ3p/R2Nb1q1/3P3P/K4P1N/Qnk1B2B w - - 0 1 legal: proof: e4 f5 exf5 d5 g4 h5 b4 a5 bxa5 g6 c4 Kd7 cxd5 Ke8 g5 Bh6 gxh6 Bd7 Qg4 Be6 Qd1 Bc8 a4 Kd7 f6 Kd6 a6 Ke5 h7 Ke4 a5 b5 a7 c5 h3 b4 f7 g5 f8B c4 a6 c3 d6 c2 d7 g4 Na3 b3 Nf3 g3 Bh6 g2 Bd3+ Kd5 Bg6 b2 Be3 b1B Nh2 Nf6 Bc5 Nc6 Nb5 Kc4 Nd4 Ne4 Ra4+ Kd3 Bb2 c1Q Bc3 Qg8 d8N Be6 Nb7 Bf7 Rf1 Rf8 a8Q g1Q a7 Qg4 Qd8 Qa3 a8B Na7 Qd5 Qd7 Rh1 Bc2 Qa1 Bb1 Kd1 Qa2 Bf5 Qg4+ Kc1 Rhg8 Re1 Rg6 Rf1 Ra6 Bg6 Qgf5 Ba5 Nc3 Rg1 Qe4 Rg2 Qc4 Kb2 Bc2 Rg1 Nb1 Bc3 Qb4+ Ka2 Qa5 Rc1 Qef5 Ne6+ Ke2 B3b4 Be4 d3 Qg4 Be1 Qad8 Rc4 Kd1 Nd4 Qb8 Bd6 Qbe8 Rc8 Qed8 Bc5 Kc1 Na5 Bg8 Bc6 Rf6 Nb7 Bf7 Qe6 Bf5 Bh1 Be4 Qd5 Q8e8 Rc6 Qb8 Rc8 Qa8
1q5k/B3p2p/2Q2NP1/1PP1rK2/1R3b1q/1QPr1N2/BNn3Q1/r2NnbR1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 Kg7 Ke4 a5 b4 d6 f4 a4 g4 a3 g6 a2 g5 Na6 b6 Rb8 b7 Qb6 Be3 Bd7 Qd5 Qc6 Nc3 Nh6 Rh4 Rd8 b8Q Re8 Nf3 Nc7 Nd1 Ng4 Bc4 Qa4 Qc6 Ne6 f6+ Kg8 f5 Rc8 g7 Ne5 Rb1 a1Q Ba2 Qb2 Rh1 Rc7 Rg1 Nd3 Qbb5 Be8 Qc4 Bf7 Qb3 Nd4 Bf2 Bc4 Be3 Kf7 g8N Bh6 g6+ Kf8 f7 Kg7 f8N Bf4 Nd7 Ne1 Nde5 Bf1 Nf6 Ra8 Nd3 Kh8 Qbd5 Qbb3 N3b2 Ra5 Qc4 Rca7 Qd3 Qg8 Qb3 R7a6 b5 Qb8 c3 Ndc2+ Bd4 Nb4 Be5 Nbc2+ Kd5 Qd4+ Ke6 d5 Bc7 Qa4 Bb6 d4 Ba7 d3 Ng8 d2 f6 Rb6 f7 Qd4 f8Q Qf2 Qc8 Qh4 Kf5 Raa6 Qcd5 Re6 Qcc6 Ra4 Qe4 Rd4 Nf6 Rd3 Nf2 d1R Qe2 Rc1 Nfd1 Re4 Qg2 Re2 Na4 Ree3 Rb2 Ra1 Rb1 Qd6 Nab2 Qb8 Qa3 Re6 Nc4 Rd4 Rb4 Rd3 Ncb2 Re4 Qb3 Re5+
qN1r4/1K1pRP2/p7/2Q1b1Rn/PB5B/3PR2Q/kP1b2Rn/1qrN2rB w - - 0 1 illegal: No possible last move
N3R1q1/1RP5/4nN2/1Q1bKQ2/p1BQPp1q/1QB1Pk1r/1NP4b/2n1r1b1 w - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 h5 gxh5 e5 a4 e4 axb5 e3 fxe3 Nh6 e4 Ng8 Kf2 Ke7 Kf3 Kf6 Kf4 d5 b4 a5 h4 d4 h6 d3 h7 a4 h5 g6 h6 d2 b6 Bd7 c6 Bf5 b7 Qd5 e3 Be6 b5 Bf5 b6 Bc5 c7 Bg4 Nf3 Ne7 Qe2 d1Q Nc3 Nec6 Rb1 Qe1 Nd1 Nd4 Nd2 Na6 b8Q Nb3 b7 Be6 Nc4 Qh4+ Qg4 Ra7 Bd2 Nc1 Bc3+ Bd4 Rb2 Nc5 Nb6 Qb3 Qg8 Bd5 b8N Rb7 Na8 Rb5 Bc4 g5+ Kf3 Be5 Nd7+ Ke7 Rb1 f5 Nb2 Bh2 Nf6 Ne6 Qb8 Rb4 Qb5 f4 Qf5 Rd8 h8Q g4+ Kg2 g3 Kf3 g2 h7 g1B Qg8 Rf8 h8Q Rf7 Qgb8 Rh7 Q8b6 Kf7 Qhb8 Kg7 Qd4 Kh6 Q8b6 Bg3 Rh3 B3h2 Rg3 Qa2 Rg8 Rb3 Re8 Rh8 Ba5 Rd3 Bc3 Rd1 Qb3 Re1 Q3b5 Qf2+ Kg4 Rh7 Qfe5 Qh4+ Kf5 Rh8 Qb3 Rh7 Q6b5 Rh8 Nd7 Kh5 Qf6 Rh7 Ke5 Kg4 Qf5+ Kf3 Nf6 Qa3 Rd8 Qf8 Re8 Qg8 Qbc5 Bc6 Qa2 Rf7 Nd3 Qh5 Rb7 Bd5 Qb3 Rh7 Nb2 Qhg5 Qc6 Rh3 Qcb5 Qh4
1Rq2B1n/2P1NR2/r1Q1B2r/1b1p1QN1/QP1b3P/QN1qP3/Kp4kn/5b2 w - - 0 1 illegal: No proof kernel
6n1/1PBQ2p1/K1P1n3/1N3k1r/1Q1q1N1p/RQ1P1bb1/2B1BnPR/2Q2q1r w - - 0 1 illegal: No proof kernel
5qR1/1pb3K1/BP5r/PN2npRq/1Q2NP1k/1B2B2n/N4PnN/1b2rQ2 w - - 0 1 legal: proof: h4 g5 hxg5 a5 c4 d5 cxd5 a4 Qxa4+ Qd7 Qa7 Qf5 e3 Qf4 exf4 Kd8 Ke2 Kd7 Ke1 Ke8 Ke2 c5 Kf3 e5 Ke4 Ke7 a4 h5 d4 f6 b4 c4 g4 h4 b5 c3 b6 c2 g6 h3 d6+ Ke6 g5 h2 a5 Rh3 g7 Rf3 g6 Bd7 Be3 c1Q Ba6 Qc8 Na3 Nc6 Nb5 Rg3 Nf3 Qe8 Rhg1 Nh6 g8N h1Q g7 Qe7 d5+ Kf7 Ra3 Rh3 Rg5 Qd1 Nh2 Qh5 Rd3 Be6 d7 Re8 d6 Ba2 d8Q Bb1 d7 f5+ Kd5 e4 Nf6 Ne5 Qda8 Qg6 g8B+ Kg7 d8N Nhf7 Ra3 Kh6 Nc6 Qh5 Nb4 Bg7 Rc3 Qf8 Rc8 Bh8 Na2 Re6 Bc5 e3 Ne4 e2 Be3 e1N Q7b8 Rh4 Qd6 Ng2 Qb4 Bf6 Re8 Bd8 Qc8 Re7 Qc1 Bc7 Qf1 Re6 Nf3 Rh1 Nh2 Rc6 Rc8 Rc1 Ke6 Re1 Nf3 Rh3 Kf6 Rh4 Nh2 Rh3 Rg7 Ng5+ Bf7 Rh4 Rb8 Nh3 Rg5 Qc5 Rbg8 Qd6+ Be6 Qf8+ Bf7 Qd1 R5g6+ Kh5 Qd2 Rg4 Qb4 Kh4 R6g7 Rg5 Rg6 Rh5 Rg5 Qc8 Be6 Rh6+ Kg7 Qh5 Bb3 Qf8+
1B1b3q/pK1qBbQ1/P1n1rP1N/8/R1BNB3/4R1qp/QP1k1Pn1/2r3R1 w - - 0 1 legal: proof: e4 b5 h4 c5 c4 g5 cxb5 f5 exf5 c4 hxg5 c3 dxc3 Na6 c4 Nb8 c5 Qc7 Nc3 Qb6 Nb1 Qd8 Kd2 Kf7 Kc3 e5 Kb4 d5 a4 h5 g4 d4 a5 h4 g6+ Kf6 b6 h3 Kb5 d3 g7 e4 g5+ Ke5 c6 Kd4 b7 d2 g6 e3 c7 e2 a6 Kd3 Nc3 Qf6 Nf3 Qg5 Ne4 Qg3 Bg2 e1Q Nd4 Bb4 Rg1 Qf4 Nf6 Be6 c8R Rh4 Re8 Qee3 Ng4 Ba5 Nh6 Qfg3 Qa4 d1Q Qa2 Ne7 g8Q Nbc6 b8B Bf7 g7 Re4 f6 Qh4 Bd2 Qeg3 Bb4 Nd5 Be7 Re6 Be4+ Kd2 Qh8 Qhh5 g8B Bd8 Qg7 Qhh4 Kc5 Ne3 Kb5 Ng2 Kc5 Re5+ Kd6 Qa4 Kd7 Re6 Kc8 Qd1 Kb7 Qdg4 Qb1 Qf5 Ra4 Qh7 Qa2 Qh8 Bd5 Qhg4 Bh7 Qf5 Bc4 Qd5 Be4 Qdd6 Bc7 Rc8 Bb8 Qd7+ Ka8 Bg6 Bed5 Rc7 Bf8 Re7 Bb3 Re1 Ba3 Rc1 Re3 Ne5 Be4 Bf7 Be7 R7c6 Bbd5 Re6 Bc4 Qde8 Kb7 Nc6 Bbd6 Qd7+ Bc7 Qd5 Bb8 Qd7+
Qq1BQ2N/pBnQ2bP/1b4p1/k2PNqK1/1r1P4/n3N3/1R4P1/r2NR1q1 w - - 0 1 illegal: No proof kernel
b2nrQR1/2R1Q2p/rn2NPB1/BbP2KN1/1r2P3/5NBP/1p1rk3/q4N2 w - - 0 1 legal: proof: g4 c5 d4 f5 gxf5 e5 dxe5 b5 b4 Be7 a3 Bg5 bxc5 b4 Be3 b3 Bc1 Be3 Nh3 Bd4 Ng1 Bc3+ Bd2 Bb4 axb4 Bb7 Bc1 Bc8 Kd2 Kf7 Ke3 g5 Ke4 a5 f4 b2 c4 a4 f6 Kg6 f7 Kh5 f8Q Kg4 c6 a3 f5 a2 c5 d6 b5 Ne7 c7 Rg8 h3+ Kg3 b6 Kf2 b7 g4 f6 g3 e6 g2 Nd2 Ra7 Ngf3 Nd7 b8B Ra6 Rg1 Nc6 e7 d5+ Kf5 d4 e8N d3 Ng7 Bb7 c8N Qa5 Nd6 Nd8 Nf7 Nb6 Ne6 Ba8 Bg3+ Ke3 Qe7 Re8 N7g5 Qa3 Qb3 Ra4 Qd5 Rb4 Qdd6 Qa4 Qf8 Qa5 Qde7 Qa3 Rh1 g1R Bg2 Rd1 Rg1 Bd5 Nh4 Qa7 Be4 Ba8 Nhf3 Qa4 Bf4+ Kf2 Nf1 d2 e3 Ke2 Bg3 Re1 Bb1 d1B Bd2 Bb3 Bc2 Bc4 Rd1 a1R Be4 Rb3 Ba5 Bb5 Rd7 Rb4 Rc7 Red1 Nf7 Rbd4 Kf4 Ra2 Bh2 Nc8 Bc3 Bbc6 Rg8 R1d2 Bg3 Qd1 N7g5 Ra6 Ba5 Rb4 Ke5 Ba4 Bg6 Nb6 e4 Bb5 Kf5 Qa1
B1bBQ3/2nQPR1B/1qr4k/1p4r1/1n1P1R1b/n4PBn/p4P1K/R4N1N w - - 0 1 illegal: No proof kernel
1nr1n1Q1/2P1BRP1/1N2p1b1/1Q4N1/RqB2K2/1N1P4/P2Rp1N1/n2r1kbn w - - 0 1 illegal: Other
3nQb2/PB2N2p/1P6/1Q4P1/Nb1nR2N/Bk1r1PrK/pb2bN1R/q3R3 w - - 0 1 illegal: No proof kernel
q1QK4/PBPnR3/R1N1b1k1/rR1N2b1/2bP1Pr1/3N1b2/pp6/B2RQ2n w - - 0 1 illegal: No proof kernel
1Bb1NR2/p3kPb1/1K2bq2/p1R3Q1/6n1/N3NPPb/1P2Q1n1/2rBB1Nr w - - 0 1 illegal: Other
2B2q1q/rnPpRNB1/R4B2/1P1Q3P/N3n1p1/1q1b2PR/8/1K1QbkBn w - - 0 1 illegal: No possible last move
1Q3RQ1/Nqr1P3/n2Pb2k/KBp3bN/4pbr1/1RQqP3/1P6/1Rr3BQ w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 d5 cxd5 e4 a4 Nd7 axb5 Ne5 fxe5 Bg4 Ra4 Be6 Ra1 Bc8 d4 f5 Kd2 Kf7 Kc3 a5 h4 g5 h6 Kg6 h7 a4 d6 g4 Kb4 g3 e6 f4 d5 c6 h5+ Kh6 b6 a3 b7 a2 b8Q g2 e7 Bd7 Nc3 Ra7 Nb5 Bg7 Nh3 g1B Rb1 a1R Be3 Bh2 Bg1 f3 Nf4 Bg4 d7 f2 d6 Qb6 d8R Nf6 Rf8 Be6 e3 Rg8 h8Q+ Kg5 h6 Qb7 h7 Ne8 Be2 f1Q Nh5 Bh6 Qc3 Bf4 h8Q Nc7 Rh3 Rg6 Qg8 Rg7 Bc4 Qd3 Qf3 Kg6 Qh1 Bhg5 Rh2 Kh6 Rd2 Qe2 Rd3 Qc2 Qa3 Na6+ Ka5 c5 Rb3 Qd1 Be2 Qd3 Bf1 Qa8 Be2 Rc7 Na7 Qb7 Bf1 Qc2 Bb5 Qd3 Re1 Rb1 Qb4 Rc1 Qc3 Bf6 Rd1 Rg4 Re1 B6g5 Rd1 Rc2 Rb1 Rc1
1Nq2BN1/Kp2nk2/1PP1rr2/1NBr1BPP/3b4/nR1R1Qpq/6B1/Q6q w - - 0 1 illegal: No proof kernel
3rq1B1/2N1NbR1/Q7/BppRPB2/1P2n1r1/1P1K1n2/1NP1QB2/kn1r1q2 w - - 1 2 legal: proof: h4 e5 e4 g5 hxg5 f5 exf5 e4 a3 Bb4 axb4 e3 dxe3 Nh6 e4 Ng8 e5 Ke7 Bb5 Kf7 Bf1 Ke8 Kd2 Ke7 g4 c5 f4 a5 b3 h5 f6+ Ke6 g6 Kd5 f7 Kd4 f8B b5 g7 d5 f5 a4 f6 a3 g5 a2 f7 h4 g6 h3 Qe2 h2 Nc3 Na6 Nd1 Nf6 g8N Be6 g7 Rh4 Nb2 Qe8 Nh3 Nc7 Rg1 h1R Bd6 Rg4 f8Q Bf7 Ng5 Ne6 Bh3 Rd8 Rg3 Rg1 Ne7 Re1 Rb1 a1Q g8B Rh1 Qh6 Rg1 Nh7 Ng5 Nf8 Rf1 Bc7 Rh1 Qd1 Nf3+ Ke2+ Kc3 Be3 d4 Ba5 Rg1 Bf2 Ne4 Qa6 d3+ Ke3 d2 Qe2 Rd1 Ne6 Rh4 Rg6 Rf4 Bf5 Rg4 Rc1 Qb1 Nc7 Qa1 Nc4 Qb1 Rg7 Qa1 Na3 Kb2 Nc4+ Ka2 Nb2 Qb1 Qd6 Ka1 Qe6 Rf1 Qd6 d1N+ Kd3 Ndc3 Rd1 Rfg1 Rd2 Qf1 Rd1+ Nb1 Rd2 Bd5 Qa6 Be6+ Ke3 Bf7 Rd5 Qg2 Kd3 Rc1 Be1 Qf1 Bf2 Rd1+
2Br2RB/1Q5n/K1nr2P1/1p4k1/PPN1q3/qnRq1BP1/1Q4Bp/1RN3b1 w - - 0 1 illegal: No proof kernel
1R1N1b2/N5P1/r1n3k1/2Q2p2/B1QQ2P1/1pq1R1Nb/1PPN3q/B1bK1n1q w - - 0 1 illegal: Other
n2r2nk/3B4/p1RP1r1P/Pq4QQ/n2N2B1/2rb2PR/2p5/2RqNBBK w - - 0 1 illegal: No proof kernel
1B1nRRr1/qbQ2PBK/nNP3P1/3q2Q1/4b2p/1N1RR3/2p4P/q3bB1k w - - 0 1 illegal: No proof kernel
NqR2R2/1Pp1Q3/1rN3p1/q2q2B1/BPP2bN1/1n1P1b1Q/3b1R1N/3Kr2k w - - 0 1 legal: proof: g4 b5 h4 f5 gxf5 d5 e4 b4 exd5 g6 h5 b3 h6 Na6 axb3 Nc5 b4 Ne6 b5 Ng7 hxg7 Ba6 Rh3 Bb7 Rh1 Bc8 b4 Kd7 f4 Kd6 c4 a5 f6 e5 f5 h5 f7 a4 b6 e4 b7 Ke5 d6 Kf4 f6 Kg3 d7 e3 d3 a3 Be2 Kg2 Rh3 a2 Nf3 h4 Nh2 Bd6 f8Q Nh6 g8N Kh1 f7 Nf5 Qe7 Nd4 f8R Bf4 Nh6 Ra6 Nc3 Rb6 Na4 Nb3 Rf3 h3 N6g4 Rh5 Bd2 Re5 Rf2 Qe8 d8N Bd7 Qc1 Bc6 Bd1 e2 Be3 Bf3 Nc6 Qb8 Qb2 Re4 Qh8 Re5 Rc8 Re4 Rc1 a1Q Qh5 Qe5 Bc2 Qa5 Bd1 Ra6 Nb6 Re5 Na8 Rb6 Nf1 h2 Qh3 Nd4 Kd2 Nb3+ Kc2 e1B Rb1 Bg3 Bg5 Bd2 Rb2 Re2 Ra2 Bg2 Rff8 Bf3 Rb2 Kg1 Ra2 h1Q Nfh2 Bgf4 Kb1 Nd4 Ba4 Nb3 Kc2 Qg2 Kd1 Kh1 Qf6 Qf2 Qe6 Qd4 Qe7 Qdd5 Qd8 Bc1 Qf6 Re3+ Re2 Bd2 Qe7 Re4 Kc2 Re5 Rf2 Re2 Kd1 Re1+
4R3/1Bbq1pQ1/1k1q1qR1/r2p2P1/Q2PNQ1Q/B4PPn/2b1nNb1/3KN3 w - - 0 2 legal: proof: e4 c5 h4 d5 b4 a5 bxc5 g5 hxg5 b5 a4 Kd7 axb5 Ra6 e5 Rd6 exd6 Ke8 c4 Kd7 b6 Kc6 f3 h5 b7 e5 d7 a4 Na3 e4 Nc2 e3 Nh3 a3 Rg1 a2 Nf2 e2 Ba3 Qe7 d8Q Qd7 Qe7 Kc7 c6 h4 c5 h3 Qf6 h2 Qg7 h1B Rc1 a1Q d4 Ne7 g3 Bg2 Rb1 Rh6 Rb6 Na6 Kd2 Rf6 Ne1 Ng6 Qa4 Nb4 Rh1 Re6 Rh8 Bd6 Re8 Nd3 Ra6 Qb1 Rb6 Qb5 Kc2 Qa6 Kd2 Kb8 c7+ Ka7 c6 Ngf4 Kc2 Nh3 Kd2 Qe7 Kc2 Bd7 c8Q Ndf4 c7 Qf6 Kc1 Bb5 Qd8 Bd3 c8N+ Kb8 Rc6 Bc7 Nd6+ Ka7 Nde4 Bc2 Qc8 Rd6 Qg4 Rd8 Qh4 Ra8 Kd2 Qd6 Rb6 Qd7 Rh6 Qd6 Kc1 Kb6 b8Q+ Qb7 Rg6 Ra5 Qd8 Qc8 Qdf6 Qd7 Qe5 Ng1 Kd2 Nfh3 Qef4 Bd1 Nc2 e1Q+ Kc1 Qe2 Ne1 Qa6 Bb5 Bc2 Bc6 Ne2+ Kd2 Qac8 Ba8 Qcd8 Bb7 Bb1 Kd1 Q8f6 Qgh8 Bd3 Qg7 Bc2+
2B1r1Bn/1R2p1RB/Q1P1rbNB/1qPQ3K/Nkn5/4PP2/p6r/3q1n1N w - - 0 1 illegal: No proof kernel
3QK1Q1/B2RnB1Q/pP2N2n/1r6/kp1P1rnQ/1br3P1/PR1qq1BN/8 w - - 0 1 illegal: No proof kernel
2bn1b2/1Br1P2R/p2N3Q/k1B1n1Q1/5qNP/3P2pR/P1q1RRK1/1B3b1n w - - 0 1 illegal: No possible last move
6Qb/1k1b3P/1N1R1bB1/4Q2p/2B1P1pP/1n3R2/PB1N1q1r/1BNK1bbn w - - 0 1 illegal: No proof kernel
N2Rn1Q1/P2K1nP1/r1r3p1/k2bP1P1/5N2/1rN1qpr1/rBR4Q/BBN5 w - - 0 1 legal: proof: f4 a5 b4 e5 fxe5 d5 bxa5 g6 c4 Ra7 cxd5 Kd7 h4 Ra8 h5 Bg7 h6 Ke7 hxg7 Ke8 Kf2 Kd7 Ke3 f5 Kd4 h5 Kc5 b5 a4 f4 g4 c6 d4 Kc7 e4 h4 d6+ Kb7 d7 Ka6 Kd6 c5 e6 c4 e7 b4 e8Q b3 g5 f3 d5 b2 Nc3 b1R Rh2 h3 Nge2 Nh6 Qg8 Ra7 Bb2 Ng4 Qd2 Nc6 Nc1 Nce5 Bd3 Qe8 d8N Rh5 Ne6 Ra8 Nf4 Bb7 Kc7 Qe6 d6 Nf6 d7 Nf7 d8B Bd5 Ra2 Ra1 Bb1 Rh4 Qc2 Rg4 Rd2 h2 Rd4 h1R Qh2 Rg3 Rd1 Nd7 Bf6 Re1 Bd4 Nf6 e5 Re3 Rd2 Qf5 Rd3 Qe4 Rd1 Ne8+ Kd7 Rd3 Rd2 Qe3 Rc2 Kb7 Ra3 Ra2 a6+ Kb8 a7+ Kb7 Rb3+ Ka6 Rb8 Ka5 Rd8 Kb4 Nb5 Rb3 a5 c3 a6 Ka5 Ba1 Rb8 a8N Rb6 a7 Ra6 Rg2 c2 Bdb2 Qg1 Nc3 Qe3 Ncd3 c1R Rc2 Rd1 Nc1 Rd4 Nfe2 Rc4 Nf4 Rcc6
k3N1bR/N1P1r3/NP2K1B1/B4nr1/p4R1Q/P1p3P1/Bnrr4/1Qq2rB1 w - - 0 1 legal: proof: e4 b5 h4 c5 c4 g5 cxb5 f5 exf5 c4 hxg5 Bg7 d4 Be5 Nh3 Bd6 Ng1 Bc5 dxc5 Kf8 Nf3 Kf7 Ng1 Ke8 Ke2 e5 Ke3 a5 Ke4 h5 Kd5 h4 b4 c3 f4 a4 f6 h3 b6 d6 g3 Kd7 a3 e4 c6+ Ke8 b7 e3 f7+ Ke7 f8B+ Ke8 f5 e2 g6 e1R b5 h2 b6 Rh6 g7 Rf6 c7 Kd7 Nf3 Re2 Nd4 Na6 Be3 Rf2 Nb5 Rf7 f6 Nh6 g8B Nf5 Bd3 Nc5 Nd2 Ra5 Nc4 Rc2 Qb1 Qe8 Bd4 Qe3 Na7 Qc1 Rf1 h1R Rf4 Rf1 Bg1 Ra6 Be4 Nd3 Be7 Nb2 b8N+ Ke8 Ra2 Bb7+ Ke6 d5 Bd3 d4 Bb4 Ra5 Na6 Rb5 Be4 d3 Ba5 d2 Bd3 d1R Nd6+ Kf8 Ne8 Rdd2 Bc4 Bc6 Bh7 Ba8 Bg6 Bd5+ Ke5 Rd7 f7 Ke7 Ra1 Rc5 Ba2 Bc4+ Ke4 Ke6 f8Q Rf7 Qg8 Kd7 Qh7 Bd5+ Ke5 Rb5 Nc6 Kc8 Qh4 Kb7 Na7 Ka8 Rc4 Rd7 Rf4 Bg8+ Kf6 Rf7+ Ke6 Nh6 Bc4 Rg5 Ra2 Nd1 Rb2 Nf5 Ba2 Rf3 Rb5 Nb2 Re5 Rff2 Re2 Rf1 Rh2 Nc4 Qg4 Nb2 Rh8 Rg2 Qh5 Rgd2 Qh4 Re7+
4b3/3P1k2/pP1nprR1/B3B2P/B1rNP3/1NQN1B1n/4R2n/1KrQ2qr w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e6 cxd5 b4 f5 b3 f6 Be7 fxe7 Bd7 axb3 Bc8 b4 Kd7 b5 Qf8 Bh3 Qe8 Bf1 Qd8 e8B+ Ke7 d4 g5 Kd2 c5 Kc2 f5 b4 f4 h4 g4 e4 f3 b6 c4 d6+ Kf8 d5 f2 b5 c3 h6 a6 d7 g3 h7 g2 d6 Qf6 d8B Nd7 h5 Nh6 b7 Ne5 b8N Qh4 Bb2 Nf5 Rh2 Rg8 h8Q Nf3 Be2 f1R Nh3 g1N Nd2 Bd7 Kb1 Qf2 Nf4 Nh3 Nc6 Rc8 Nb3 Qg1 Ncd4 Rc4 Ba5 Re1 Rf2 Nh2 b6 Bc6 Qe5 Rg6 Nd3 Rf6 Bf3 Rf1 Bd7 Kf7 Re2 Re1 Ra2 Bb5 Rg2 Re2 Rg6 Rc2 Bc8 Be8 Bd7 Nf1 Bc6 Nh2 d7 Nd6 Ba1 Rf2 Re2 c2+ Kc1 Rg2 Ba4 Rf2 Kb2 c1R Qc5 R1c2+ Kb1 Rf1 Qb4 Qg2 Bb2 Rh1 Qc3 Qg3 Bc1 Qg2 Bf4 Qg1 Be5 Rc1+
r4k2/QPQB2R1/3p1Nn1/3Q4/3R2nq/3PB3/NPbn1P1p/n1bKbNN1 w - - 0 1 legal: proof: e4 c5 a4 a5 h4 g5 hxg5 f5 exf5 b5 axb5 Ra6 c4 Rh6 b6 Rh3 Qg4 Rb3 Qd1 Rb5 cxb5 Bg7 Ne2 Bh6 Ng1 Bf8 g4 e5 d3 h5 g6 c4 b7 d6 g5 h4 g7 e4 f6 h3 f7+ Ke7 b6 h2 g6 e3 Nd2 e2 Qc2 a4 Bh3 c3 Nf1 a3 Be3 a2 Bd7 Nc6 b8N Nh6 g8Q Ng4 g7 Nce5 Na6 Ng6 Nb4 Bb7 Qa4 c2 Qa7 Bd5 b7 c1N Kd2 e1B+ Kd1 Nb3 Rc1 a1N Na2 Be4 Rc4 Nd2 Rd4 Bd5 Qh7 Be6 g8Q Bh6 f8N+ Bf7 Ne6 Bf4 Ng7 Bc4 Qd5 Kf8 Nh5 Qh4 Nf6 Bg5 Bb5 Rg8 Qc7 Rh8 Nc1 Ba2 Bd7 Bb1 Na2 Kg7 Nh3 Ra8 Rg1 Kf8 Rg2 Bh6 Ng1 Ne4 Qcc4 Ne7 Nb4 Ne5 Rg7 Ng4 Na2 Ng6 Bf4 Bg5 Qc7 Bh6 Bg3 Bc1 Bf4 Nd2 Be3 Bc2+
q1b3Q1/4b1B1/pPrPR1B1/2Pk4/3N2B1/P1n1K3/Np3Bn1/nQnR1N1b w - - 0 1 illegal: No proof kernel
nQ1q1qB1/1q1PpP2/r2N1Rr1/4P2b/1QPbQ2Q/2Bp4/2kN1R1K/5B1q w - - 0 1 illegal: No proof kernel
q1N2R1Q/q1R2r2/p1rn2K1/b5P1/1pk4P/PNBRQ1rB/BPr5/1R1b4 w - - 0 2 legal: proof: f4 h5 c4 e5 fxe5 d5 cxd5 h4 g3 Rh5 Nf3 Rh6 Ng1 Rh8 Qa4+ Nd7 Qd1 g5 h3 g4 gxh4 g3 Na3 Ndf6 Nb1 Ng4 hxg4 Qe7 Rh3 Qd7 Rh1 Qd8 e4 Kd7 Ke2 f5 Ke3 c5 Kf4 b5 d4 b4 e6+ Kd6 e7 g2 Kg5 a6 e5+ Kc7 a3 Kb6 d6 f4 d5 f3 d7 f2 e6 c4 d6 Kb5 Qe1 Bh6+ Kg6 Bf8 e8R Kc5 e7 c3 g5 c2 Bd2 c1Q Qe3+ Kd5 Nh3 g1R Bc3 Rh7 Nd2 Nh6 Nb3 Nf7 Rb1 Rg3 Bg2+ Kc4 Nf4 f1R Bh3 Rb8 Nd5 Rb6 Rh2 Bg7 Rf8 Rf2 e8B Be5 Ne7 Rc6 Rg2 Qb6 d8R Bg4 Nc8 Qa7 Rg1 Bf6 d7 Rc2 Rd1 Qd2 Rdc1 Nd6 Bf7+ Qd5 Qe5 Nb7 Nc5 Rc7 Qe6 Kb5 Qe3 Rf2 Be1 Bd1 Bfe6 Rf7 Rc2 Qf3 Ba2 Bd4 Rc4 Rc2 Nb3 Bb6 Bc3 Rc5 Qc1 Ba5 Qe3 Re5 Rc7 Rc5 Rde8 Rc4 Re6 Rc5 Rd6 Kc4 Rd3 Qg2 d8Q Qf3 Qf6 Nd6 Qg7 Qfa8 Qh8 Rc6
1N5Q/1N1p1r2/1qB3n1/bqPQ1R2/RrNB4/q2PpK2/2k1PPb1/1q2B2B w - - 1 2 legal: proof: g4 b5 b4 g5 a4 f5 axb5 c5 gxf5 Nc6 bxc5 Ne5 h4 g4 Bb2 Nf7 Bc1 Ng5 hxg5 Bh6 Rh3 Bg7 Rh1 Bf8 c4 Kf7 f6 Kg6 c6 Kf5 b6 Ke4 b7 h5 b8N e5 c7 a5 f7 g3 g6 g2 g7 h4 Nc3+ Kd4 Ne4 a4 Nd6 h3 Nb7 Bb4 f8B h2 c5 Ne7 g8B e4 Bd5 e3 Bc6 a3 Bg7+ Kc4 Bc3 a2 B1b2 Rh4 Nf3 g1Q Bd4 Qg4 Bg2 Ba5 Kf1 Ng6 Bbc3 Qf6 Rg1 h1Q Bb4 Qe4 Bbc3 Qc2 Ne5+ Kb3 Nc4 Rh7 d3 Rf7 Be1 Qh6 Qd2 Qb1 Bh1 Qh2 Qb4+ Kc2 Rg5 Ra6 Rf5 Rb6 Qa3 Qhd6 Kg2 Rb4 Kf3 Qh4 Nd8 Bb7 c8Q Ba8 Nb7 Qe6 Bb5 Qb6 Qh8 Qhd8 Bc6 Qb5 Nd2 Qdb6 Qb3+ Kc1 Qd5 Kc2 Nf1 Qc1 Nd2 Qa3 Rb1 a1Q Nc4 Q1b2 Ra1 Qb1 Ra2+ Qab2 Ra4 Q2c1 Qe4 Qa3 Qd5 Kd1 Qe6 Kc2 Ke4 Nf8 Bd5 Qab3 Nd8 Bc6 Nb7 Qc3 Kf4 Qa3 Bdg2 Bf3 Qd6 Bh5 Bc6 Bf3 Qd5 Ng6+ Kg3 Bg2 Kg4 Bh3+ Kf3 Bg2+
B1BN3q/1QPp2bq/2bN1Bk1/6p1/PnK5/2n5/2RP1NP1/1RqqQNr1 w - - 1 2 legal: proof: e4 b5 h4 c5 b4 g5 h5 a5 bxa5 f5 exf5 Ra6 Nc3 Rg6 hxg6 Qc7 Rb1 Kd8 Nd5 c4 Ra1 Qb6 Nf4 Kc7 Nd5+ Kd6 Nc7 Kc6 Ne8 Qd8 Nc7 Bb7 Bxc4 Ba6 Bf1 Bc8 Ke2 Kd6 Kd3 Ke5 a4 Kf6 f4 e5 c4 h5 g7 h4 c5 b4 c6 e4+ Kc4 e3 a6 h3 a7 e2 a8B e1Q Ne2 b3 Ra2 b2 Nb5 b1Q c7 h2 Bb2+ Kf7 f6 Bb7 f5 Ba3 Ng3 Qf2 Qe1 Ne7 g8N Nd5 Nd6+ Kf8 f7 Rh3 Nf6 Kg7 f8N Qg1 Nfe4+ Nc3 f6+ Kh6 f7 Qc1 Nf2 Na6 Ne6 Qh8 f8Q+ Kg6 Nd8 Bc6 Qf3 Nb4 Ba1 Qd1 Rc2 Bb2 Qd5 Rh7 Qb5 Rf7 Qb7 Rf5 Bd3 Qf1 Rg1 h1Q Be2 Q1h6 Rh1 Qg1 Nf1 Q6h7 Bd3 Nb1 Be2 Bg7 Bf6 Re5 Kd4 Re3 Ba6 Rb3 Kc4 Nc3 Qb8 Rb2 Bc8 Rb1 Qb7 Qc1 Rh4 Qh1 Re4 Q1h5 Re5 Qhd1 Rb5 Nd3 Rbb2 Nb4 Rb3 Ra1 Rb1 Q7g8+ Qe6 Qdh5 Rb3 Qgh7 Nh2 Qa3 Qe2 Rh1 Qe1 Rg1 Rb1 Qc1 Nf1 Qhd1
2qR1N2/1p1p1qB1/1nR1RR1q/3n4/rPPQ1QKP/5B2/1r1Pb3/Q1Nk2q1 w - - 0 2 illegal: No proof kernel forced: wxLB
r1n4b/BQ1PQNbN/4Rrp1/2K1b3/B5b1/1B1pRn1P/3P1P2/2k2BNb w - - 0 1 illegal: No proof kernel
rb1Q2B1/2P3B1/Qb1N1Bb1/2p1RQ2/4n2p/b1P1KN1P/1k3P1B/rnnR4 w - - 1 2 legal: proof: d4 b5 g4 c5 a4 f5 gxf5 e5 dxe5 Be7 axb5 Bg5 b4 Qf6 b6 Qc6 b5 Be7 bxc6 Bf8 Kd2 Kf7 e4 d5 e6+ Kf6 b7 Ke5 f6 Kd4 f7 a5 e5 h5 h3 g5 e7 g4 e8Q g3 e6 g2 e7 h4 Ra3 a4 Ba6 Nd7 b8B Ngf6 Rh2 Ne5 Ke2+ Nd3 Bg5 Bf5 Qc8 Ne4 e8Q Be7 f8B Bg6 Nd2 Nc1+ Kf3 Bd8 Re3 a3 Bc4 a2 Qf5 a1B Rh1 Bb2 Qf1 Ba3 Bh2 Bb6 Qd8 Rh7 Re1 Kc3 Bg7+ d4 B5f6 Kb2 Bg8 Rh6 Kf4 Rh7 Ngf3 g1B Qa6 Rh8 Ne5 d3 Ndf3 d2 Re2 d1N Nf7+ Ndc3 Ke3 Rh6 Nd6 Rh7 Re1 Rh6 Rd1 Rh8 Rd5 Ra7 Re5 Nb1 c3 Ra8 Bg3 Bh2 Rd1 Rh7 Bh8 Rha7 Bhg7 Ka1 Qc4 Ra5 Qa6 Kb2 Bf4 Bb4 Bg3 Ra1 Bf4 Ba3 Bg3 Bg1 Bh2 Ba5 Nb7 Bf7 Re6 Bb6 Bc7 Bh2 Re8 Bd6 Bb8 Be7 Bh2 Bd6 Re5 Bb8 c7 Bh5 Nd6 Bg6
B1Qn4/1RnPB1Kp/1QpnkBr1/2PnrN1R/7P/Nn1Q4/4P3/1qq1B3 w - - 0 1 illegal: No proof kernel
1B1k1nR1/QQ1q4/1bRq4/p1nBNR2/1QP2p2/PPb5/2b2P2/n1b1N1KQ w - - 0 1 legal: proof: d4 a5 g4 g5 b3 e5 dxe5 b5 Bb2 c5 Nh3 h5 gxh5 b4 Bc1 c4 Ng1 Rh6 Bh3 Rc6 Bg2 c3 Bf1 Rc4 bxc4 b3 Qd2 b2 Qd1 Ra6 Nd2 Rb6 Nb1 Rb3 cxb3 Qf6 Bh3 Qe7 Bf1 Qd8 e4 f5 h4 d5 e6 c2 e5 d4 h6 d3 h7 g4 h8R g3 e7 g2 h5 Na6 h6 Nb8 h7 Bb7 a3 Nh6 Rh5 Ng4 Bf4 c1B Qf3 Qc7 Rg8 Be4 h8Q Qb7 Nd2 Kd7 e8Q+ Kc7 Qb5 b1N e6+ Kd8 Qb4 Nd7 Bb8 Ne3 Rhg5 Qb6 Qh1 Qd6 Ra2 Nc3 e7+ Kc8 R5g6 Na4 Rc2 Nac5 Rc3 Ne5 Re6 Ng6 Rf6 Qd7 Ra6 Qd6 Rc6+ Kd7 Be2 Bg7 Bd1 Nf8 Bc2 Ke6 e8Q+ Kf6 Qc8 Ke7 Qcb7+ Kd8 Qg4 Qd7 Ngf3 g1B Ne5 Bh2 Ndf3 d2+ Ke2 Bg3 Ne1 f4 Rd3 Bh4 Rd5 Qd6 Bb1 Nc2 Kf1 d1Q Kg1 Na1 Bd3 Bg6 Be4 Bg5 Bf3 Bc2 Qgh4 Qd3 Qh7 Qf5 Qa7 Bh8 Qhb7 Qfd7 Ng6 Bc3 Rf5 Bgf6 Bd5 Bfd4 Ne5 Na4 Qba8 Bb6 Q8b7 Nc5
3BnN1r/1qQB2N1/k1b3PB/1b5P/K6r/p1Q1PRn1/p1p2PN1/b5RN w - - 0 1 illegal: Other
7N/K4r2/B1Q1P1rP/kqpp2NP/4n3/b1R2rp1/2RP1R1Q/B2bnB1B w - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Nf6 bxa5 Ne4 c4 Nf6 cxb5 Ng8 Kf2 f5 Ke3 g5 Kd4 g4 e4 c6 a4 d6 h4 Kd7 e6+ Kc7 b6+ Kb7 h6 g3 e5 f4 e7 f3 e8Q f2 h5 Na6 e6 Qe7 Nc3 Bd7 Nge2 Rc8 Nf4 Nb4 a6+ Ka8 a7 Kb7 a8B+ Kb8 a5 Na2 a6 Qf7 b7 Kc7 b8R Qe7 a7 Nf6 Qe2 Nh7 Bb2 Qd8 Ng6 Ng5 Rc1 Rh7 Rc2 Ne4 Nh8 Nb4 Ba1 Rf7 Rh2 Nd3 Bb7 Kb6 a8B Ne1 Ba6+ Ka5 Rb3 Qg5 Rg2 Qb5 B8b7 Nc5 Ne4 Rc7 Ng5 Ne4 Qa8 Rf6 Rh2 Rg6 Rbc3 Be8 Qc8 Rf7 Ba8 c5+ Kd5 Bg7 Qc6 Bf6 Bh3 f1R Rf2 Rh1 Bg2 Rh4 Bf1 Rf4 Rff3 Bd4 Qh2 Bg7 Rf2 Rf3 Rd3 Bb2 Rdc3 Qb8 Qd7 Qb3+ Kc6 Ba3 Kc7 Qa4 Kb8 Qb5+ Qb7 Bc6 Ka7 Bd5 Qd7 Bc4 B8b7 Be2 Qc6 Bd1 Bg2 Qb1 Baf1 d5 Bh1 Rf8 Bc8 Qb5 Ba6 R8f7+
2N1k1qr/QBQ4P/2RQb1R1/2P2rQp/2K1p2n/p1NBbb1n/1P2P3/2B5 w - - 0 1 illegal: No proof kernel
4bBn1/R2Qp3/1RQ4n/2K2Pnp/2NPPQ1Q/4BBp1/br2q2P/3rk2N w - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 g5 a4 f5 axb5 Qd6 Qc2 Bh6 Qd1 g4 g3 Bg5 fxg5 f4 Qb3 f3 Qd1 Qf4 gxf4 Bb7 Ra2 Ba6 Ra1 Bc8 Kf2 Kf7 Ke3 Kg6 Kd4 Kh5 e4 Kh4 b4 a5 g6 h5 b6 g3 b5 c6 g7 a4 f5 a3 b7 a2 d6 f2 d7 Nh6 d8B Nd7 g8Q Rb8 b6 Nf6 Bg2 f1B Qg6 Be6 Na3 Bb5 Bf3 Nfg8 Nc4 Ba4 Rb1 a1Q+ Kc5 Qb2 Nh3 Bd5 d3 Qe2 Nf2 Bf7 Re1 Bb3 Bb2 Ba2 Bg7 Be8 Nh1 Kh3 Bc7 Rd8 b8Q Rd4 b7 Rd7 Kb6 c5 Bf4 Rd4 Be3 Rd8 Bg4+ Kg2 Qf4 Rd7 b8Q Rd8 Nd2 c4 Bf8 c3 Qc6 c2 Nc4 c1N Kc5 Rd7 Rb6 Nb3+ Kb4 Nd2 Kc5 Nf3 d4 Ng5 Qd8 Ra7 Qdd7 Ra3 Qc1 Rd3 Qf6 Rd2 Qc2 Rd3 Ra1 Rd1 Bf3+ Kf1 Qc1 Ke1 Qh4 Bb3 Ra7 Ba2 Qfc6 Rh7 Ra5 Rg7 Ra7 Rg6 Bg1 Rf6 Qcf4 Rg6 Be3 Rd6 Qdc7 Rd7 Qc8 Rb7 Q8d7 Rb8 Rba6 Rb4 Rb6 Rb2
2q5/r1RBp1B1/P2b4/p1n1r3/Q1rRP2p/B2P4/b1P2nNk/NKQ1BQ2 w - - 0 1 illegal: No proof kernel
1b1Q2R1/1nP1pnb1/2P1R3/N6B/1PRB1NP1/1NpK1k1b/r4q1p/1R2rQ2 w - - 0 1 illegal: No proof kernel
3q3Q/2PPRRnp/1r1rB3/1pR3B1/1bKQN2r/P2RN2P/kp3b1N/3n4 w - - 0 1 illegal: Other
1b6/1PBKn2k/R1pn4/N2Qr2r/bN1Rp1BR/B1P3Pn/1P1p2Q1/q3R3 w - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c6 axb5 g4 d5 g3 d6 Qc7 dxc7 Nh6 hxg3 Ng8 g4 Kf7 g5 Ke8 Ke2 Kf7 Kf3 Kg7 Kg4 a5 f4 d5 c3 e5 b6 d4 b7 d3 g6 a4 Be2 a3 Nf3 h6 Rh4 e4 Ne5 a2 Nd2 Ra7 Ndc4 Bc5 Na5 Bd7 c8R Ra8 Rd8 Be8 f6+ Kf8 Kf5 h5 Ke6 Ba7 f5 Na6 f7 Kg7 f8R Ne7 Bf4 Bf7+ Kd7 Nc7 Bg4 Nb5 g3 d2 Nd3 Rc8 Qe2 Nd6 Re1 a1Q Nb4 Bb3 Qg2 Ba4 Be5+ Kh6 g7 Kh7 f6 Ra8 f7 Bb8 Rg8 Ra7 f8B Ra8 Nb3 Ra5 Bf4 Re5 Na5 Bc7 Ra8 Bb8 Ra6 Nef5 Rh2 h4 Be7 h3 Rd8 Re8 Bf8 Ne7 Rhh1 Rh5 Be5 Nb5 Bc7 Nd6 Rh2 Nd5 Rhh1 Ree5 Be7 h2 g8Q+ Kh6 Qe6+ Kh7 Bf8 Ne7 Qd5 Qa3 Rhg1 h1N Rgf1 Nf2 Rh1 Kg6 Rh4 Kh7 Na2 Ndf5 Qf7+ Kh8 Ke8 Nh3 Rd4 Ng8+ Qe6 Kh7 Kd7 Ba7 Qd5 Bb8 Bc5 Nd6 Bb4 Ne7 Bc5 Qb3 Ba3 Qd1 Nb4 Qa1
1kn1K1n1/pB1R1R1R/b1Qp4/1pbB2P1/2rP1B1P/2Q3P1/N2r2Rq/3b2N1 w - - 0 1 illegal: No proof kernel
1n3Q2/p1p1PR1P/P1p2RQ1/K1BN1N2/RQn4P/2rR1B2/qr3b2/2knb3 w - - 0 1 illegal: Other
4Q1b1/pPkP2Nn/6Rp/1qbQ3p/2R1r2B/1rP1Q1rK/BPN3n1/3Q3R w - - 0 1 illegal: Other
2KNbB2/3R3Q/3PP2b/p1R2r2/npBNpn2/k3PrP1/2R1RN1q/1Q5q w - - 0 1 illegal: No proof kernel
N4r2/pRP1Rr1Q/b1np2NQ/PqkP4/Pp1R2NB/nB6/2b5/K4qR1 w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 hxg5 c4 a4 c3 Nxc3 Bg7 Nb5 Kf7 Nc7 Bc3 Na6 Bb4 Nc7 Ba3 bxa3 Qf8 Qf3 Qe8 Qd1 Qd8 c4 e5 g4 Ke7 d4 Kd6 Kd2 h5 Kc3 b5 Kb2 h4 f4 e4 c5+ Kc6 a5 h3 f6 d6 g6 e3 f7 e2 f8R e1Q a4 h2 g5 b4 f5 Qf2+ Qd2 Qf3 f6 Qd3 d5+ Kd7 f7 Nf6 g7 Qe3 g8R Ng4 c6+ Ke7 g6 Qh6 g7 Qg5 Nf3 Rh7 Rg1 h1B Re8+ Kf6 f8N Rh3 Bc4 Qh5 Ng6 Ne3 Nh2 Qd7 Bb3 Qhf5 Re7 Nc2 Qh6 Qf1 Ng4+ Kf5 Ra2 Na3 Ka1 Ba6 Rd2 Be4 Rd4 Bc2 Rc8 Rc3 g8Q Rf3 Qgh7 Rf4 Rg8 Rf2 Rgg7 Rf3 Ne6 Qb7 Nc7 Qbb5 Rd1 Rf2 Bg5 Rf4 Bh4 Rf3 Ne6 Ke4 Rb7 Rf7 Nc7 Qfd3 Rd2 Kd4 Rdd1 Kc5 Rd2 Rf8 Re7 Rf7 Rdd1 Qf3 Rd4 Qff1+ Ka2 Nd7 Kb2 Rh8 Na8 Nb8 c7 Nc6 Ka2 Rhf8 Kb2 Bd1 Ka1 Bc2+
8/k2qR3/nrQ1BpB1/1BP1PpR1/2b2P1p/1rb2K1P/3r1bNQ/B2QN3 w - - 0 2 illegal: Other
Q2B1q2/4KQP1/1r1RBp1N/1rP1n1pN/2B2RP1/3bb2N/P2krbp1/5B2 w - - 0 1 illegal: Other
2Q3r1/r4n1Q/R1RPb1pq/8/N1P1PKrN/p1Q2b2/BB2QBPp/6bk w - - 0 1 illegal: No proof kernel
1n1kNQ1N/1r2RP1R/7R/n5p1/1q1K1Bbp/PQ1pNN1P/1P6/q1nB2r1 w - - 0 1 illegal: No proof kernel
1R1n3B/N1qN1RQp/r2p2Q1/1RPPqBb1/4P3/2pB3B/K1P1b2n/1n5k w - - 0 2 legal: proof: f4 c5 b4 a5 a4 g5 h4 e5 fxe5 b5 hxg5 c4 axb5 Ra6 Nc3 Rc6 Nb1 Rc5 bxc5 Bg7 Rh3 Bh6 Rh1 Bf8 d4 Ke7 Kd2 Ke6 Kc3 Kf5 Kb2 Ke4 g4 f5 e6 d6 e7 f4 e8Q+ Ne7 d5 f3 b6 a4 g6 f2 g5 a3+ Ka2 Be6 b7 Qb6 g7 Bg8 g6 Qa5 Nf3 Qd8 Ne5 Nc8 Nd7+ Be7 Bb2 Nc6 b8R Bf7 g8B Qc7 g7 Bh5 Be6 Nb6 g8B Na4 Beh3 Nd8 Bge6 Bg5 Qg6+ Kf4 e4 Kg3 Bd3 f1N Nc3 Nh2 Re1 Be2 Rb1 Rf8 Bhf5 Kg2 Nb5 Rf7 Na7 Nc3+ Ka1 a2 Rf1 Rg7 Qc1 Rg8 Qe3 Re8 Qd4 Rg8 Qdg7 Rf8 Rf4 Rf7 Bc1 Kh1 R1b5 Nb1 Bh3 Rf8 Rf7 Rg8 Bd2 Rh8 Bef5 Re8 Kb2 a1Q+ Kc1 Qf6 Be3 Qe7 Kb2 c3+ Ka2 Qe5 Bd4 Ne6 R8b6 Ra8 Rb8 Nd8 Qf8 Qg3 Bh8 Qe5 Qfg7 Na3 Nc8 Ra6 Na7 Nb1+
Bq1nK3/2p3bR/1PN2R2/Q1pP1bqr/1R1pBP1N/3P1Q1R/1B1k1q2/2r5 w - - 0 1 illegal: Other
1nk5/1N1rR2K/2PPqN1B/1Bp2QbP/R1Q1b3/2pp1N1b/1N1P2rQ/2q5 w - - 0 1 illegal: Other
1N2r3/1nP1k1K1/6P1/4B1RP/nRQ2N2/2p1Bp2/rQP2pBq/r1b1NN1q w - - 0 1 illegal: Other
r3nr1N/5q2/Qq1P1P2/Qp1k4/1Pp1nP1n/RQ1N1B2/pRR4b/1K2BQ2 w - - 0 1 illegal: No possible last move
K3qk2/Q3qb1n/2NQB2R/p1p2b2/P2P1QBB/P5b1/2NpnPr1/4Q1R1 w - - 0 1 illegal: No proof kernel
2B1q1nQ/b1n4p/2Np4/2P2KPP/BP1B4/p2Q3n/RQ2BRqN/1r1b2k1 w - - 0 1 legal: proof: e4 c5 a4 a5 f4 b5 axb5 g5 fxg5 d6 d4 Kd7 dxc5 Ke6 e5 Kf5 e6 Ra7 Qe2 Rc7 Qd1 Rd7 exd7 Ke6 Kd2 Kf5 Kd3 e5 h4 a4 c4 a3 g4+ Kg6 Ke4 f6 h5+ Kf7 g6+ Ke6 c6 Qa5 d8Q Qa8 b6 Bh6 g7 Be3 g5 Na6 b7 Ba7 b8Q Nc7 c5 Bb7 Nd2 f5+ Ke3 Kd5 Ne2 e4 Kf4 e3 Ra2 Bc8 Nd4 e2 Rh2 e1N Be2 Nf3 Rf2 Ng1 N2f3 Bd7 Nh2 Nh3+ Kg3 Ke4 Be3 Be6 b4 Bb3 Qf6 f4+ Kg4 f3 Qd2 Bd1 Qd3+ Kd5 Qe8 Qd8 Kf5 Qb8 Rg2 f2 Qed8 f1Q+ Rf2 Qg2 Qc8 Na8 c7 Qb5 Qcf8 Qe8 c8B Nc7 Qa6 Qg1 Nc6 Qg2 Qb2 Ne7+ Kf6 Ke4 Bd4 Rg8 Bf3+ Kf4 Be2+ Kg3 Qc4 Rh8 Qb5 Ng8+ Kf5 Qe3 Qd8 Qe8 Qa6 Nf6 Qb5 Rf8 g8B Rf7 Qc4 Re7 Bge6 Ng8 Bed7 Re3 Qf6 Rc3 Qh8 Rc1 Ne7 Ra1 Ba4 Rb1 Nc6 Qf1 Rf4 Kg2 Rf2+ Kg1 Qd3 Qg2
Q5rQ/R1pb4/1rpNQqkb/b3P3/P4K1p/2Q1nN2/3P2BP/1qRRB3 w - - 0 1 illegal: Other
2R5/1b3NN1/7B/2PBpp1K/1pnk1bBR/1rq1qPn1/PN1n1PQB/1Q6 w - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 b5 dxc5 h5 g4 Ra6 gxh5 Rg6 Qd2 Rf6 Qd1 Rf3 exf3 Rh6 Bg5 Rh7 Bc1 Rh8 c6 d5 Ke2 g5 c4 f5 h4 Kf7 a6 Kf6 h6 Ke5 c7 e6 h7 d4 a7 b4 a8B d3+ Ke3 d2 h5 g4 h6 g3 Ne2 g2 Nbc3 g1Q Ng3 Bb7 c8Q Qe7 Na4 Nc6 Bh3 Qd6 Nh5 Nf6 c5 Rg8 h8B Na5 h7 Bc6 Bg7 Qg2 h8N Nb3 Nf7+ Kd5 Qd8 Ne4 Qg5 Qe7 Be5 Bh6 Kf4 Rd8 Nb2 Re8 Qf1 d1N Rh2 Qf6 Ng7 Ne3 Bd2 Qh1 Re1 Nc4 Re3 Qg1 Qb1 Qe1 Bb8 Qe7 Bb7 Kd4 Ba8 Ba4 Bd5 Bc6 Bd6 Bb7 Bc7 Nc1 Ra3 Nb3 Ra8 Qc1 Rc8 Qc2 Bd6 Qd3 Rc6 Ra8 Rc8 Ra3 Bc7 Qc3 Bc1 Nf6 Kg3 Ne4+ Kh4 Qe8 Kh5 Qe7 B1f4 Nbd2 Qg2 Rb3 Bg4 Bg5 Rh4 Bh6 Bh2 Ng3+ Kg6 Be3 Bf4 e5 Bh6 Qg5+ Kh7 Qf4 Kg6 Qe4 Rc7 Bf4 Rc8 Ngf1 Kh5 Qe2 Bc6 Qee3 Bd5 Ng3+
4N3/1Krq1R2/3R3r/P3p2k/R1PNq1b1/BpbpPQrB/1P1Q3Q/4n2Q w - - 0 2 illegal: No possible last move
BB2Q3/1Q1PKP2/Bnbpr3/N1qr4/p2QPN2/5kbR/PR1b2p1/1q4B1 w - - 0 1 illegal: No proof kernel
4R2R/Pk2nBp1/nbp3PN/pbqQq2K/1r1B1QQN/2P1P3/6Q1/1N2b3 w - - 1 2 illegal: No proof kernel
bnr3QK/p2n1q2/k1pqRQ1R/N1p2B2/B3Pb1P/P4Q1N/nP6/4B1Q1 w - - 0 1 illegal: Other
1k2N1r1/1p1p2P1/1PbPn1b1/1Q1b3r/1Q1PN3/1r1nK2R/1pN5/NR1B2BB w - - 1 2 illegal: Other
1b1K3k/1b3pn1/Rn1B2RP/3BQRP1/1Pp2B2/Q2N3p/r1rN1Pr1/1n2B3 w - - 0 1 illegal: No proof kernel
k1N1b3/Np1RrpQn/1P2q1Q1/4n1pP/P7/R1KBn1nN/P7/R1B1r1N1 w - - 0 1 illegal: No proof kernel
B1n5/N1kPPp2/nN2K1p1/4NPPR/1r1Q1Q2/1B2rn1b/4np2/2B1q1NR w - - 1 2 illegal: Other
3N3N/b1pBRpQ1/2nBP1b1/BPbb3k/P1BN3r/r3K3/1p3P2/R4Q1n w - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 e5 gxh5 b4 dxe5 Qf6 c3 Qc6 c4 Qb5 cxb5 Bd6 Ba3 Be7 Bc1 Bf8 Kd2 g5 a4 d5 e4 d4 h4 b3 a6 g4 h6 g3 a7 g2 e6 b2 e7 d3 h5 Na6 e5 Bf5 h7 Be6 h6 Bc4 Nc3 Bd5 Ke3 d2 Nf3 g1B Na2 Nc5 Nb4 Bh2 Nd4 Rd8 a8Q Ne4 Bc4 Ng3 Qf1 d1B Bd2 Bh5 Nbc6 Bg6 Ba5 Bg7 Rg1 Nh1 Qa6 Rd7 Nd8 Bf8 Qf6 Bf4+ Ke2 Bc1 Qg7 Be3 Rg4 Rd6 Re4 Rf6 Kd3 Rf3 Ke2 Kd7 e8B+ Ke7 Bd7 Rh3 N4e6 Ba7 Nd4 Rh4 Ke3 Nf6 Bf5 Nd7 Be6 Nb8 Bd7 Rg8 h8B Nc6 h7 Bh5 Qg4 Bg6 Bg7 Rh8 Bh6 Rg8 h8N Rg7 Bf4 Rg8 e6 Kf6 Bd6 Kg7 Qgg2 Kh6 Rg4 Kh5 Qgg1 Bb1 Rg3 Rg6 Rg4 Rf6 Rg8 Bg6 Qg3 Be7 Re8 Rf5 Qe5 Rg5 Qg7 Rg3+ Ke2 Ra3 Kd2 Bg5+ Ke2 Bd2 Re7 Bc3 Ke3 Bb4+ Ke2 Bbc5 Kd2 Bd3 Ke3 Bg6+
1r3R2/1pBBR2Q/2ppNn1q/n2k1K2/PP1P2qQ/3n4/R1B3Pr/r2BN3 w - - 0 1 illegal: No proof kernel
1kB3KR/p2Q4/4rb1b/Pq3RBn/2bpq2R/1QbP4/pQ3PP1/2N1QN2 w - - 0 1 illegal: Other
n1B1n3/K4p1R/1rkn1QqB/n3p2p/1B1P3r/4QPBP/q1P4N/3QN1R1 w - - 0 1 legal: proof: d4 c5 dxc5 d5 a4 b5 axb5 d4 e3 e6 Ra4 d3 Ra6 Qd5 Ra1 Qd8 g4 Bd6 g5 Be7 Be2 Bf6 Bf1 Bd4 exd4 Qc7 Qg4 Qd7 Qd1 Qd8 Bg2 h6 Bh3 e5 Bf1 Bf5 Bg2 Bg6 Bf1 Bh7 g6 Ne7 gxh7 Ng8 Kd2 Kd7 Kc3 a5 Kc4 g5 b4 g4 b6 g3 Kb5 d2 c6+ Kd6 b7 a4 c7 a3 Kb6 a2 b5 g2 Nf3 g1N Bh3 Qe7 c8Q Ra7 Qc3 Nc6 b8B+ Kd5 Qe3 Ra4 Ne1 Qg5 f3 Qh5 Bc8 Rb4 Bc7 Ne2 Bd8 Ng3 Bh4 Nf5 Bg3 Na5 Ka7 Qg6 b6 Nd6 b7 Nf6 b8B Nfe8 Rg1 Rb6 h3 Ndc4 Bd6 Kc6 Bb4 Ncd6 Rg2 h5 Rg1 Rg8 h8Q Rg7 Rg2 Rg8 Qf6 Rg7 Qde2 d1N Nd2 Nb2 Nf1 Nbc4 Nh2 Rg8 Rb1 a1Q Qd1 Qa2 Bcd2 Rb8 Rg1 Nb6 Rb3 Na8 Rc3+ Kd5 Rc6 Rb6 Bc1 Ndb7 Re6 Nbd6 Bcd2 Kc6 Bc1 Nec7 Re8 Rg7 Rh8 Ne8 Bcd2 Qe4 Rh7 Rg4 Qd3 Rh4 Bh6 Qf5 Qe3 Qg6
5b2/2pQ2BP/1k1PP2P/N1N2Kp1/b2Bnn2/1BR1qp2/1QRNNp1r/6r1 w - - 0 1 illegal: Other
1b6/p2pRq2/PRR2bK1/QNBNPr1B/1p1Q3Q/3p3n/rP1n1PQ1/2k5 w - - 0 1 illegal: Other
1B6/N1RBp3/2P1P2R/1p2K3/r1q1bRnp/bR1QP1Pp/N7/1b1NkrQ1 w - - 0 1 illegal: Other
3NbR1b/p1p4n/N2Q4/1k4pP/1qNPK1b1/2rB2PR/1P1Bp2R/N4Q1n w - - 0 1 illegal: No proof kernel
3q4/n1QP2kP/Nqr2b2/3PN1pr/2B1R1pp/1N3BKP/p1RB4/B1Q1n3 w - - 0 1 illegal: Other
4k1B1/p3bR1Q/3P3r/1b3K2/Q1QPNpp1/P2B2Pr/N1p1qBq1/3BR1n1 w - - 0 2 legal: proof: f4 b5 e4 g5 c4 e5 cxb5 d5 fxe5 Nd7 exd5 Ndf6 h4 g4 Qc2 Ne4 Qd1 Ng5 hxg5 Bf5 Qa4 Be6 Qd1 Bc8 Ke2 f5 Kd3 h5 b4 c5 g6 f4 Ke4 h4 d4 h3 a3 h2 d6 c4 g3 c3 e6 Ne7 b6 Bg7 b5 Rh3 b7 Rh7 b8Q Ba6 b6 Rh3 b7 Be5 g7 Ng6 g8B Nf8 e7 Rh8 Qc8 Ne6 b8Q Bb5 Qbb7 Nc7 Kf5 Bg7 Be3 Ne6 Qa4 Rh7 Bd3 Rh4 Nf3 Rh7 Bf2 Rh3 Qcc4 Bf6 Nfd2 Ng5 Ne4 Nf3 Re1 h1Q Ra2 Rh7 Rb2 Qg2 Rb4 Rh3 Qbc7 Bc6 Rb7 c2 Nbc3 Bb5 Na2 Rb8 Be2 Ng1 Bd1 Bh4 Bd5 Qf1 Nd2 Qe2 Be4 Rc8 Bd3 Ra8 Q4c6+ Kf7 e8B+ Kf8 Bf7 Qde8 Qc3 Qc6 Qcc4 Qg2 Ne4 Re8 Qd7 Re6 Bg8 Rh6 Qh7 Ke8 Rf7 Be7
B1r5/k1pR1R2/5BqR/p1N3P1/P1P1p2n/2K2p2/bNQ1BBPQ/qb5n w - - 0 2 legal: proof: f4 a5 h4 g5 hxg5 d5 e4 b6 exd5 Bg4 b4 Nf6 b5 Ra6 bxa6 b5 g6 Bc8 Ke2 Bh6 Ke1 Bg5 fxg5 Ng8 c4 Kd7 d4 e5 Kd2 h5 a4 f5 a7 b4 a8B f4 g7 b3 d6 e4 d5 b2 Nh3 h4 Be2 Nh6 g8Q Nf5 Kc3 Nc6 Be3 Nce7 Nd2 b1B Qh7 Ng3 Nf2 h3 Qc2 h2 Nb3 Qe8 Nd1 Qg6 Nb2 Kd8 d7 Nef5 Rf1 h1Q Qh2 Nh4 Nc5 Qg1 Rf3 Nh1 Ra3 Ba2 Bf2 Qa1 Rb3 Ke7 d8B+ Kd6 Rh3 Bg4 Bf6 Rc8 Rb8 Nf5 Rh6 Nh4 Nb7+ Kd7 d6 Kc6 d7 Bf3 d8R Bh5 Bg3 Kb6 Rd7 Ka7 Nc5 Bf3 Bf2 Bb1 Bd3 Bd1 Be2 f3 Rb6 Ba2 Rbd6 Bb1 Rf7 Ba2 Rdd7 Bb1 Qc1 Bb3 Qc2 B3a2
knQ2Qb1/1ppb3Q/NB1K1NrP/bp1Pp1P1/4P1n1/1Q5B/8/R2rB1R1 w - - 0 1 illegal: Other
q3R3/1bpp1kn1/2P5/1R1p2p1/1b1PQ1nQ/5n1P/N3BP1R/qQB1KRN1 w - - 0 1 illegal: Other
4bbRQ/3PQ3/4NpQ1/2BKr1p1/1P1p3R/b1kpNPnb/6P1/n1NB3Q w - - 0 1 illegal: Other
Rn3R2/p2k1KP1/1BN1npbB/1r4QB/2B2P2/4p1Q1/P1p1P2n/Nbn3Q1 w - - 1 3 legal: proof: g4 e5 h4 c5 c4 b5 g5 Ke7 cxb5 c4 d3 Na6 d4 f6 Nc3 Qe8 Nb1 Qf7 g6 Rb8 gxf7 g5 Bd2 g4 Be3 Bh6 Bc1 Bg5 hxg5 Rb6 Rh4 Rc6 Rh1 Rc5 dxc5 Kd8 Rh5 Ke7 Rh2 Ke6 Rh1 Ke7 Kd2 d5 Ke3 h5 f8Q+ Ke6 b4 e4 Kd4 g3 g6 h4 g7 h3 c6 c3 c7 g2 b6 h2 b5 Rh3 b7 Kd7 b8B Rg3 b6 Rf3 b7 Rf4 Qc5 Ke8 Nf3 g1N Ne5 Rh4 Nc6 Bh3 c8B Nc7 Na3 Be6 Rb1 Bf5 Bg2 Ne7 Be6 Rh5 Bh6 e3 Bf3 Bg6 Nc2 Rf5 Bg8 Kd7 Bh5 Rg5 Qb5 Nf3+ Kc5 Rf5 Qg1 d4+ Kc4 d3 Na1 Ne6 Bc7 d2 b8Q d1N Bb6 Rg5 Qbg3 Rd5 Qa5 Rb5 Rb4 Bb1 Bgf7 c2 Rb2 Nfg5 f4 Nf2 Rb3 Nf3 Rb2 Rb3 Qag5 Nd3 Bg8 Nc1 Bgf7 Ng6 Kd5 Rb4 Rb3 Ngf8 Rc3 Rb5+ Rc5 Kc8 Kd6 Nd7 Ke7 Nb8 Rc3 Nf8 Bc4 Ne6 Kf7 Kd7 Q1f2 Re5 Rd1+ Rd5 Qfg1 h1B Rd4 Nh2 Re4 Nd4 Re8 Ne6 Rf8 Be4 Rd3 Bf5 Rd4 Bh7 Re4 Rb5 Re5 Nc5 Ree8 Ne6 Rc8 Na6 Ra8 Nb8 Q3g4 Bd3 Q4g3 Bg6+
3rB1N1/b1Q4b/r1BPP1q1/p2R4/Q1BB3p/1R2n3/PN1KrN1P/1k2nnb1 w - - 0 1 illegal: No possible last move
4r1BR/1Pn3p1/BKP1N1Pb/3qk3/Q3b1qn/prrR4/P1N1B3/B2q1QQ1 w - - 0 1 illegal: No proof kernel
4k2B/1npr1p2/P1Rb1P2/PBP1q1B1/q6N/N1n1rb2/3bQ1K1/1RnQQ2Q w - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 Qh4 g4 Qf6 gxh5 Qd8 h4 g5 a4 b5 f4 d5 Kf2 d4 e4 g4 c4 g3+ Kg2 b4 h6 b3 f5 d3 h7 b2 c5 d2 h5 Qd4 a6 Bd6 a5 Nf6 e6 Rf8 h8Q Bb7 e7 Qe5 h6 Nd5 h7 Nb4 Rh6 Nd3 Nf3 Nc6 Nh4 Nd8 Na3 b1N Be2 Nc3 Rb1 Bd5 Re6 Nb7 f6 Rd8 Bf1 Nb4 Bb5+ Bc6 Qh1 d1Q Bg5 Qg4 Qg7 Qd1 h8B Qa4 Qh6 Rg8 Qh5 Nba2 Q5d1 Nc1 Kg1 Qd5 e5 g2 Kf2 g1B+ Kg3 Be3 Kh3 Kd7 e8Q+ Kc8 Qe7 Bd2 Qe8 Qdd4 Kh2 Bf3 Kg3 Be7 Rc6 Bd6 Kh3 Qf4 e6 Qe5 e7 Rg6 Qf8 Rh6 e8Q Rh7 Qee7 Rh5 Qg7 Rd7 Qh7 Rh6 Qhc2 Rg6 Qe6 Kd8 Qe2 Rg8 Qcd1 Re8 Qee1 Ree7 Qc4 Ke8 Qce2 Bg4+ Kg2 Bf3+ Kf1 Qef4 Kf2 Re3 Kf1 Qe5 Kf2 Bh5 Kg2 Bf3+
1b4b1/pnbKN3/2B1P3/P1P2q1N/1rRQ1Qqn/RNp3B1/r1P2NB1/1n4k1 w - - 0 1 illegal: No proof kernel
5bR1/q1rNb2N/Bn2k2r/B4p2/1n2P1np/3QRb1P/PBQ1qP2/RB3K2 w - - 0 1 illegal: No proof kernel
1b1N1NR1/3nkB2/2p3p1/2P1q1rB/PB1KbQ1n/q2N2PB/Q1P1b3/3R1r1q w - - 0 1 illegal: No proof kernel
2Q2BQ1/QqNr3B/NN3q2/2p4n/3P1Pb1/3Kp1Rq/r1P1P2k/1Rnbb2N w - - 0 1 illegal: No proof kernel
K1nB4/Q3b3/2nqQ1RR/2pPr1n1/r2NNpqR/1B5N/b1P2PPR/k3b3 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 h4 Be6 hxg5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g6 e5 g7 c5 b6 a5 b7 h5 d6 f5+ Kd5 e4 d7 e3 Qg4 a4 Rh4 a3 Bc4 e2 Nc3 e1B Ne4 a2 Bb3 Ra3 Nh3 Nc6 b8N Be7 Bg5 f4 Qe6 Ra4 Rc1 Qc7 d8R a1Q Rd6 Qd7 Rd1 Qb1 Rd3 Qd1 Rc3 Qg4 Rg3 Nh6 g8R Nf7 Rg6 Re8 Bf6 Ng5 Rh6 Bf8 Bd8 Qc7 Rd7 Bd6 Rdh7 Be7 Nd7 Ba6 Ne5 Qb6 Nf3 Bc8 Nhg1 Qa6 Rh2 h4 Rh8 h3 Rh4 Bf6 R8h6 Bd7 Kd6 Be7+ Kc7 Qd3 Kb7 Qd1 Rh1 h2 Nh3 Qd2 Rf1 h1N Rg1 Na7 Ka8 Bb5 Rf1 Bc4 Rg1 Qd3 d5 Nc8+ Qa6 Qe2 Nd4 Qd7 Rgg4 Ng3 Rh1 Nf5 Rh2 Qd6 Qa7 Nf7 Rgg6 Ng5 Ba2 Qg4 b3 Ka3 b4 Kb2 b5 Qf3 b6 Ka1 b7 Qg4 b8Q Bb3 Qb6 Bc4 Ne6 Nd4 Bb3 Nc6 Nd4 Ra6 Ba4 Ba2 Bb3 Ra4 Qba6 Bf8 Qe2 Re5 Qea6 Be7 Qe2 Qg3 Qg4 Qf3 Qe6 Qg4
5B2/1p2K1B1/1brp2Qr/1qRnb1N1/1n1PnP1N/1P3B1b/q1P5/NQR2Nk1 w - - 0 1 illegal: No proof kernel
3B1QKN/rp1k2np/8/2rPb3/1PPRn2R/BqQnq2P/N6R/qR3b1B w - - 0 1 illegal: No proof kernel
2rn1K1k/b1n1p2B/B2Qq2R/1PpNPr2/2PPb1N1/B1b1Q2B/2rQ1b2/7R w - - 0 1 illegal: No proof kernel
6Qb/3n1R2/R1ppn1K1/1brQ2B1/PPPPb3/Q2B1QN1/3NB2q/1nrn2k1 w - - 0 1 illegal: No possible last move
5Q2/2rn2P1/1Q1b2kN/B1B1pbp1/2R5/r1PrRbP1/2R1PKn1/NBr1q1R1 w - - 0 1 illegal: No proof kernel
1Q6/1QPp1Pp1/1NN2RP1/b2RqBnb/2KQnB1b/rn1P2r1/B7/1Bn4k w - - 0 1 illegal: No proof kernel
4Q1rB/1K1RN3/b3nB1B/pQb5/1N3pqn/1R3R1b/PbBP1P1P/2nr2k1 w - - 0 1 illegal: No possible last move
b1qrn1BK/P1Nn4/1NQ2R2/b4N1p/3B1P1P/3RRqpR/1r3qP1/1k1q1Q2 w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 b5 a4 h5 f4 c5 h4 g5 d6 c4 d5 e6 d7 g4 f6 g3 a6 c3 f7 c2 a7 Kb3 a5 b4 d6 Qb6 d8Q Nh6 Kf6 e5 a6 e4 Ne2 e3 Qd7 Qb5 Rh3 Bb7 Na3 Qd3 Nc4 Nf5 Nb6 Ng7 Bb2 Rg8 Rb1 Ka2 Qc6 c1Q d7 b3 d8R Bb4 f8R Ba5 Nd4 e2 Nf5 e1Q Bd4 Qf3 Bc4 Qef2 Qf1 Nd7+ Kf7 Qcc3 Re1 Rb8 a8N Ne8 Nc7 Ba8 a7 Qc1 Be6 Kb1 Re3 Rh8 Kg6 b2 Rf6 Rg8+ Kh7 Rf8 Qe2 Qc4 Bg8 Qa6 Qcc4 Qc8 Kh8 Nc5 Ree6 Nd6 Na4 Ka1 Rde8 Nd7 Qc6 Rb6 R8e7 Rd8 Qf1+ Ka2 Re8 b1Q Re4+ Rb3 Nb6 Qbd1 Re2+ Kb1 Rd2 Rb2 Re3 Ne8 Rdd3 Bd2 Nc4 Be1 Nb6 Ba5
1K1kn1bB/3q1PpB/N1Q1B1P1/2b1qq1P/1R3p1n/N1r2Pr1/2q3Q1/2R1RB2 w - - 0 1 illegal: Other
2QR2q1/3nNQ1K/qP3R1N/1PB5/ppN4q/P2k1r1b/1P2N1qR/1r2bn1B w - - 0 1 illegal: No proof kernel
3nQN1r/2P2p1B/1rRp4/K2Q2Bq/3rR3/NbbPPPq1/nBr4k/Q2Q4 w - - 0 1 illegal: No proof kernel
4b2k/3Qr3/KpB2qRr/b2Rb2N/BQpn3p/P1Pr1NnP/B2P1B2/2N5 w - - 0 1 legal: proof: e4 d5 exd5 a5 f4 g5 fxg5 Qd6 b4 Qd7 bxa5 Qd8 Ke2 f5 Kd3 Kf7 Kc4 Kg7 Kb5 h5 g4 c5 d6 e5 h3 e4 a6 b6 g6 f4 d7 f3 g5 f2 a7 e3 Bb2+ Nf6 Nf3 e2 Bd4 e1B Nc3 h4 Qb1 Kg8 g7 Ne8 Rg1 Rh5 Ne2 Nc6 c3 Qc7 d8Q Be7 Qd7 Qe5 Nc1 Qf6 Qb4 Rh6 a3 Bb7 Rb1 Rd8 a8B Bd6 Bg2 f1R Bf2 Bc8 Bb7 Nd4+ Ka6 Be7 Rb2 Nd6 Rb1 Kh7 g8N Kh8 g6 N6f5 Bh1 Re8 Rg5 Ng3 Rd5 Bf8 Ra1 Re7 Rb1 Qe6 Nf6 Qc6 Nh5 Qf6 Bg2 Rg1 Bf1 Rg2 Bb5 Rg1 Qe8 Bd7 Ba4 Rf1 Qc8 Be8 Bbc6 Rg1 Qd7 c4 g7+ Kh7 g8B+ Kh8 Bh7 Rg2 Be3 Re2 Bg1 R2e3 Bf2 Rd3 Ra1 Rde3 Bb1 Rd3 Bg1 Bf2 Ba2 Be3 Bf2 Bf4 Nb3 Be5 Rg1 Re6 Rg2 Bfd6 Nc1 Re7 Qb2 Bb4 Rg1 Ngf5 Rg6 Ba5 Qb4 Ng3
Bbb3N1/2n1Prn1/B1p2RpK/3q2Pp/1QB2B1Q/2P1Rrr1/P7/2k1nNQ1 w - - 0 1 illegal: No proof kernel
2B1k1n1/2q1P3/3n2pR/4p1rr/1pN1KbQ1/3QPNP1/BBPb1R2/r2N1b1N w - - 0 1 illegal: No proof kernel
4N2n/2BPp1pp/B1NPk1r1/1rr3q1/4P2P/b1Q2b2/2n2BK1/QnRQ2RB w - - 0 1 illegal: No proof kernel forced: wxDB
r1nRQ3/R1b1pp2/1n1RPPQr/1q1Pp3/2Bq3P/B4K2/2Nk2b1/RB1N1b2 w - - 0 1 illegal: Other
q1NQrk1b/q1n3p1/rPb2p2/2K1PBBp/1RQ1rP1P/Q2N4/Q7/n2R1N2 w - - 0 1 illegal: Other
3kN1N1/3p1R2/5pqB/4bPQB/1Rp1Pq2/3NQ1n1/1PPn2br/1KQ2qrN w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 Kd2 c5 f4 a5 h4 g5 e4 f6 f5 a4 h6 a3 h7 c4 h5 a2 h6 g4 b6 g3 e6 g2 b7 Ba3 e7 Ra4 Ne2 g1Q Nbc3 Qa5 Nf4 Qb4 Nd3 Qg6 Be2 Nc6 b8N Na5 Nc6 Qd6 Bh5 Bb7 Ne2 Ba8 Qg1 Qf4+ Qe3 Bd6 Ng3 Be5 Rh4 Bb7 Nh1 Nb3+ Kd1 Nd2 Rh3 Kf7 e8N Ne7 Rh4 Nd5 Ne7 Ra8 Rh2 Rg8 h8Q Bc6 h7 Nc3+ Ke1 Ne2 Kd1 Rg7 Ng8 Bd5 Rh3 Nf3 Bd2 Ng3 Kc1 Kf8 Nh6+ Ke7 Qg8 Rb8 h8Q Kd8 Rh2 Rh7 Qgg7 Be6 Ng8 Bf7 Qh6 Rg7 Qg5 Ra8 Qhh6 Rb8 Bb4 Nd2 Bf8 Rc8 Rb1 a1Q Rg2 Qa6 Ra1 Qd6 Ra4 Qf1+ Ne1 Ra8 Rb4 Ra3 Qa7 Rf3 Qae3 Rf2 Rg1 Rh2 Rg2 Nb3+ Kb1 Qd2 Rg1 Qdf2 Qc1 Qf3 Qge3 Qf4 Nd3 Nd2+ Ka2 Qh7 Qg5 Rg6 Bh6 Rg7 Be2 Bh5 Rg2 Bf3 Ka1 Nb3+ Kb1 Qg6 Rg1 Bg2 Bh5 Nd2+ Ka1 Bf3 Ndf2 Ne2 Qg2 Qf7 Nd3 Rg4 Ka2 Rgh4 Qg6 R4h3 Rg5 Rg3 Rg4 Rg1 Qg7 Nb3 Kb1 Bg2 Qg6 Qh7 Rg3 Qg7 Qg4 Qh7 Qh4 Qf7 Rg7 Qg6 Rf7 Ng3 Qg5 Nd2+
4BN1B/p1brp1Qb/qR1r1QPn/PN1nQ3/1B1PP3/8/3qk2p/2KRr1B1 w - - 0 1 illegal: No proof kernel
2q1Nb2/k2BPN2/1pp1NRK1/pbQ5/5PrB/PPn5/qb3B2/RnQ1Br2 w - - 0 1 illegal: No possible last move
8/k2nPpr1/p2n3r/qQp5/1nB4P/1BPBbP2/K1N2RbQ/3NRNBq w - - 0 1 illegal: No possible last move
nb2NQ2/2N2Pr1/p1Qr1p1R/Pp1r1P2/1PBqn2b/4N2N/2rB4/Q1R1K2k w - - 1 3 legal: proof: e4 h5 g4 d5 gxh5 f6 c4 Na6 cxd5 Be6 e5 Bf7 e6 Nb8 exf7+ Kd7 d4 Kd6 h4 g5 b4 b5 f4 c5 a4 e5 a5 e4 h6 c4 h7 c3 f5 a6 h5 g4 h6 c2 Be3 c1R Rh3 g3 Nc3 g2 Bd2 e3 Bc4 Rc2 Rc1 e2 Rh1 Qd7 Nh3 Ne7 Rh2 Rg8 h8Q Rg7 h7 Nc8 Qg8 g1B h8Q Nb6 Rh1 Be7 Qc8 Bh2 Qhf8 Bg3+ Nf2 Qd8 Rh6 N8d7 Qb7 Nc5 Qc8 Bh2 Nh3 Ne4 Qb7 Ra7 Qc8 Na8 Qc5+ Kd7 d6 Rc7 Qb6 Rc6 Nd5 Be5 Ne3 Bg3+ Nf2 Bh4 d5 Kc8 Qc5 Kb7 d7 Kc7 Qb6+ Kd6 Qc5+ Ke5 d6+ Kf4 Qd5 Kg3 Nh3 Qc8 d8N Qd7 Nb7 Bd8 Qe6 Bc7 Qee8 Qd8 d7 Bb8 Nd6 Qb6 d8N Qd4 Ne6 Kh2+ Nf2 Rc5 Nc7 Rd5 Qc8 Ng3 Nh3 Kh1 Nde8 Rd6 Kf2+ e1R Qd7 Rg1 Qc6+ Ne4+ Ke2 Rc3 Qa4 Rd1 Qa1 Qc5 Be1 Rc2+ Kf1 R1d5 Bd2 Rg3 Ke1 Qa7 Qb7 Qd4 Qc6 Rg7+
rQb1QR2/pp1P2Bn/1Pkbn1R1/P1npr3/6NN/7B/2P3n1/RqKQR3 w - - 0 1 illegal: No proof kernel
r4N2/1Pp2NNp/B4QnP/R4KPr/nbP1b3/1Q1np1qk/6n1/NR2R1B1 w - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Be6 fxg5 Bc8 Ke2 Kd7 Ke3 a5 Kf4 e5+ Kf5 f6 h4 e4 d4 a4 b4 a3 g4 a2 h5 Bg7 g6 Bf8 g7 Nc6 d6 Ba6 h6 Na5 b6 Bb7 d5 Nc4 b5 Ra4 g5 Qb8 Nd2 Ra5 Ne2 Be7 Nf4 Ra4 Ng6 Ne5 Qf3 Nd3 Nb3 Ra3 Rb1 a1N Be3 Ra2 c3 Rh2 Bg1 Rh5 Re1 Bc6 b7 Qa8 b8Q Qa3 b6 Bb7 Nd4 Nb3 Nc2 Nbc5 Na1 Ba8 Qb7 Na4 Qa6 Bc6 b7 Qb3 Qb5 Qa3 Qb3 Bf8 Kg4 Ne7 g8R f5+ Kg3 f4+ Kg4 Bg7 Ra8 Bf8 Ra5 Rg8 Qf2 f3 Qd4 f2 Qf6 Rh8 Be2 f1N Rb1 Ndb2 Ba6 Ne3+ Kf4 Rg8 c4 Ng2+ Kg4 Nd3 Re1 Nc8 Kf5 e3 Rb1 Qb2 Re1 Qd4 Rb1 Qh4 Re1 Be7 Rb1 Qg3 Nf8+ Kd8 d7 Rh8 Qd4 Bb4 Re1 Ke7 d8N Kd6 Nde6 Rg8 Ng7 Ne7+ Kf6 Ng6 Kf5 Ke7 d6+ Kf7 d7 Ke7 Nfe6 Ra8 d8N Bd5 Qf4 Kd7 Nf7 Bf3 Kf6 Be4 Nf8+ Kc6 Rb1 Nde1 Bh2 Nd3 Bb5+ Kc5 Rhe1 Kd4 Qf3 Bc6 Qf1 Ke4 Ba6 Bd5 Qf2 Bc6 Qfb2 Kf4 Bg1 Kg4 Qd4+ Kh3 Kf5 Bf3 Qf6 Be4+
R3N2n/rnbP1r2/1PQ4p/p1q2B1n/B5NP/PQp2b1k/2RK3B/2R1n2B w - - 0 1 legal: proof: e4 d5 exd5 b5 c4 g5 cxb5 Bf5 f4 Bg4 fxg5 Bc8 g4 Kd7 h4 a5 b4 e5 d4 f5 b6 c5 a3 e4 b7 e3 d6 Ke6 b5 e2 g6 h6 d5+ Kf6 g7 f4 b6 f3 g5+ Kf5 g6 Kg4 d7 f2+ Kd2 Nc6 b8R Kg3 d6 e1N Bd3 Nc2 Rh2 Ne5 Nf3 Qc7 d8Q Ne3 d7 Ne7 g8B N3f5 g7 N7g6 Nc3 Nd6 Bd5 Qc6 g8B Ra7 Qc7 Bb7 Bf5 Nd3 Nb5 Rh7 Qb3 Rf7 Ne5 Nh8 Bh1 c4 Ng4 Qd5 Bgh7 Qc5 Ra8 Bf3 Qc6 Nb7 Nc7 Bd6 Ne8 Ne1 Bc2 Bb8 Bhf5 Bc7 Rg2+ Kh3 Bb2 Bg3 Rc1 Bc7 Be5 f1N+ Kc3 Rf8 Bh2 Ng3 Kd2 Nh5 Qbb5 Nd8 Ba4 Nb7 Qb3 Rf6 Kc3 Rf8 Rgc2 Rf7 Kd2 c3+
3R2qb/1r1pppNP/2K1PB2/2Q1bBBQ/1q1P2Q1/q4Pn1/2b1k1r1/3R2BN w - - 0 1 illegal: Other
q1k1n2q/Br2QK1p/2n1r2Q/1p3Q2/p1RP2RP/Pr3R1r/1P2B3/1NR1N2b w - - 0 1 legal: proof: f4 f5 g4 d5 gxf5 e6 c4 Qe7 cxd5 Qa3 e4 Be7 e5 Bf6 exf6 Qd6 Nf3 Qe7 Ng1 Qd8 Ke2 Kd7 Kf3 g5 Ke4 b5 Ke5 c5 h4 a5 a3 c4 f7 a4 f8R c3 d6 c2 f6 g4 f7 g3 f5 g2 f6 Bb7 Qf3 Ra7 Qf5 Kc8 Nf3 g1R Be2 Rg3 Rg1 Rh3 Ne1 Bh1 Rg4 Rb7 d4 Rb3 Bf4 c1Q Re8 Qc3 f8R Qc6 f7 Nf6 Bg3 Rg8 d7+ Kc7 Re7 Ne8 Bh2 Qa6 Bf4 Qa8 Bh2 Ng7 Kf6+ e5 Bg3 Qc8 Re6 Nc6 d8Q+ Kb8 Qe7 Qd8 Rd6 e4 Rd7+ Kc8 Bb8 e3 Ba7 Ne8+ Ke6 Qc7 Rd5 Qb6 Rc5 Qd8 Rc4 Rg7 Nc3 Rg8 Rc1 Rg5 Nb1 Rg8 Rf4 Rg3 Rf3 Rh3 Rg8 Nd6 Rg1 Qh8 f8Q+ Ne8 Qfg7 Rb8 Qh6 Rb7 Bf1 e2 Rg4 Rc7 Kf7+ Rd7 Ng2 e1R Bd3 Re2 Ne1 Re6 Be2 Rb7
2K2bb1/2Nr1Nrr/Bnk1NRpn/1r2P3/1QBB4/2p2pP1/R1P2P2/5QrN w - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g6 axb5 Bh6 h4 Qe7 h5 Bf8 h6 Qh4 Nc3 Qf6 Nb1 Qg7 hxg7 Bc5 Rh4 Ba3 Rh1 Bf8 Kd2 h5 Kd3 d5 Kd4 Kd7 b4 a5 e4 f5 e6+ Kd6 e5+ Ke7 Kc5 f4 b6 h4 b5 c6 b7 f3 Kb6 h3 Kc7 d4 b6 h2 Ra2 a4 Ba6 d3 Nd2 c5 Nb3 d2 Nd4 a3 Qf1 d1R Nge2 c4 Be3 c3 Ng3 Ke8 e7 Rh3 Ne6 Rd3 Bd4 Nd7 b8Q Rh8 b7 Nh6 g8B Rh7 Rg1 Rg7 Nh1 Nf6 Nd8 Rd2 Bgc4 Nd7 Nf7 Nb6 Rb2 Na4 Rb6 a2 Rf6 a1R Qa7 Bd7 b8N Rdd1 Qb7 Be6 Nd7 Nb6 Nc5 Rb8 Qe4 Bd5 Ne6 Rab1 Qh4 Rd8 Qg4 Rb5 Qf4 Rd6 Kb8 Kd7 e8N Kc6 N8c7 Na8+ Kc8 Rd7 Ng3 h1R Qh4 Rh2 Nh1 Rh3 g3 Rc1 Qg2 Ra1 Rb1 Rh2 Rb2 Rg1 Qf1 Rh3 Ra2 Nb6+ Kb8 Nf5 Qe4 Rhh7 Qg4 Na8+ Kc8 Nh6 Bd3 Bb3 Bc4 Nb6+ Kb8 Rh8 Bd3 Bc5+ Nf8+ Be6 Be3 Ng8 Qb4 Rh4 Nd6 Rh2 Bd4 Bf7 Nfe6 Rhh7 Be2 Nh6 Bc4 Bg8 Nf7 Na8+ Kc8 Bd6 Be2 Bf8 Bc4 Nb6+
B7/1NB1Q1pK/R1q2PP1/1p1prpR1/8/NPnkBbR1/1B1n1P2/2Q1br1r w - - 1 3 illegal: No proof kernel
7Q/6B1/kqnbpB1p/p1nRP2N/B1p1K2b/PNbB2rP/3QP2r/1Q2R3 w - - 2 3 illegal: Other
1r6/2Q5/P2pQb1n/p1qBQ1p1/2bN1B1k/1p1K1R2/rPBPBNPb/3nR3 w - - 1 3 illegal: Other
2q4N/2p2PpB/ppb2N1R/2Pn2P1/Qb2n1r1/3RQ1BR/1P2b1kr/BK2B3 w - - 2 3 illegal: Other
B1QB1r2/1pP4K/3pN2p/2b1k2B/1NQ2n1Q/nP1B3r/1P1RbnpP/4qR2 w - - 0 1 illegal: No proof kernel
B1q2qK1/r1b2Q2/4Rppr/1PR2PP1/1n3Nbp/2Q1pN2/kBPn4/NR4R1 w - - 0 1 illegal: No possible last move
RNB1BR1B/p1PR4/2p1rPb1/1N1p2qp/4k2P/2r2qb1/PQ1n3Q/K2n1B2 w - - 0 1 illegal: No proof kernel
3B2Nq/N4r1R/1pB2R2/pn1rnb1p/1Q1p3P/nP1PP1r1/kN1B4/B2K2Q1 w - - 0 1 illegal: No proof kernel
1N2k1q1/pp1R2qn/NbB5/PNppPK1q/Q1P1r3/1rB5/1P1R4/1NQR1n2 w - - 0 1 legal: proof: g4 g5 f4 e5 fxg5 d6 h4 e4 h5 e3 dxe3 Qe7 e4 Bf5 e5 Bg6 hxg6 Qd8 Kf2 h5 Kg3 f5 Kf4 c5 c4 h4 a4 h3 e4 h2 a5 Qf6 e6 Qd4 g7 Qf6 e7 Rh5 e5 Nd7 g6 Rh6 g5 Qe6 Ne2 Rh3 Qa4 Rh6 Bd2 Rh5 Bg2 Rh3 Rd1 h1Q Nec3 Rc8 Bc6 d5 Nb5 Rb3 Bc3 Qh5 Rd2 Nh6 g8Q Ng4 g7 Ne3 g6 Nf1 Qh8 Qf7 g8R Qg7 Qh6 Rc7 Rh8 Qg8 Rh7 Bg7 Rh8 Bf6 g7 Kf7 e8N Qh7 g8N Ne3 Ng7 Nf8 Ne6 Bd8 Nf6 Qg8 Nd7 Ke8 Nb8+ Rd7 Qg7 Bb6 Rh6 Nh7 Qg4 Qgf7 N1a3 Qg8 Kf3 f4 Nec7+ Kf8 Rd6 Rf7 Nca6 Ke7 Rd7+ Ke8 Kf2 f3 Kg3 f2 Rf1 Rf6 Nb1 Rf4 Rc1 f1Q Qg6+ Qf7 Qc2 Re4 Rcd1 Q1f6 Qc1 Nf1+ Kg2 Qhg6+ Kh3 Qfg8 Qb4 Qfg7 Qa4 Re1 Kh4 Ng5 Kg4 Qh5+ Kf4 Re4+ Kf5 Nh7#
5R1b/pR2PpK1/bqpB4/2r1BQ1R/P2qpP2/1rPbnB2/2kN2Q1/5NR1 w - - 0 1 illegal: No possible last move
b1n1rb2/1Q1Bpp1p/P2N2R1/npQ4r/bP1Q3P/k1B2Q1K/1N2P3/n1R2N2 w - - 0 1 illegal: No proof kernel
r2N3k/7p/N2b4/p2N1r2/P1q1p1RQ/rQrpB2B/2bRP1PP/1K1nQ2N w - - 0 1 illegal: Other
Rr6/K1P1nN2/1Q2Qppp/1NB2QPP/1r2b3/qP3p2/1n1kBp1R/b4QB1 w - - 0 1 illegal: Other
7b/1bBpRBR1/Q2P1K2/1qp1R3/3br1p1/1B4PP/r1PBQNpp/1kn2N2 w - - 0 1 illegal: Other
3krqB1/r1rB4/1PBP2N1/6KB/2b3Q1/1B4Bq/PnnR1NqP/3R1q2 w - - 0 1 illegal: No proof kernel
n3K2R/RBn2rrP/B3N2n/Q1P3B1/3rnPk1/5N2/1BPbb3/1B2n1B1 w - - 0 1 legal: proof: f4 b5 d4 h5 a4 f5 axb5 c5 dxc5 e5 fxe5 f4 g3 f3 Qd3 Qh4 Qf5 Qf4 gxf4 Kd8 Qxh5 Ke7 Qh7 Ke8 Kd2 Kf7 Ke3 Ke6 Kd4 d5 b4 a5 h4 g5 e4 g4 h5 f2 h6 a4 b6 a3 b7 g3 b5 a2 b6 g2 Nf3 g1N Qc7 Nd7 b8B Ra7 b7 Bd6 Bb2 Ngf6 Qa5 Nh5 Na3 Be7 Nb5 Rf8 Bd6 Rf7 b8B Bd8 Be7 Ba6 Bg5 Nhf6 Rh3 Nb6 Nc7+ Ke7 e6 Be2 Ke5 d4 Kf5 d3 Kg6 d2 e5 d1R Bg2 f1N Rh5 Kf8 e7+ Kg8 e8B Nfd5 e6 Nd2 e7 Na8 Bh1 Ne4 Bb5 Rd4 Ne6 Ndc7 e8B Bf6 Ba6 Rg7+ Kf5 Kh7 Ba4 Bd8 Bb3 Rb7 Ke5 Kg6 Rh2 Nf6 Bd5 Ng8 Kd6 Kf5 Kc6 Kg4 Rh3 Ne8 Be5 Rbf7 Bdc4 Nec7 Rh2 Re4 Bed4 Bf6 Be3 Bc3 Bb3 Bd2 Kd6 Ne7 Kd7 Rd4+ Bd5 Ng8+ Kd8 Nh3 Bg1 Nf2 Bg2 Nd3 Rh3 Nb5 Ke8 Ne1 Bdb7 Nc3 Bf1 Nb5 Rh5 Bd1 Bc4 Be2 Rd1 a1N Ba2 Nb3 Ra1 Bc3 Bb1 Nd2 h7 Bb4 Rh6 Bc3 Rg6 Ne4 Ra3 Bd2 Rf6 Rc7 Rf8 Nh6 Rh8 Rcf7 Qc7 Nbc3 Bc4 Ng2 Ra7 Ne1 Qa5 Nd5 Bca6 Ndc7+
4N1B1/N1qQ4/1bPPB2R/r2nR3/b1K1Bk2/P2B1p1r/2Bq1P1n/2B2r2 w - - 0 1 legal: proof: e4 c5 b4 g5 h4 b5 hxg5 d5 exd5 a5 bxa5 b4 d4 b3 dxc5 b2 Ba6 Qb6 Bb7 Qd6 Bxb2 Qc7 Bc1 Qd8 Kd2 Kd7 Kd3 e5 g4 h5 c4 f5 a6 f4 g6 h4 c6+ Kd6 a3 f3 g7 h3 c7 h2 g5 Qe8 c5+ Kd7 g6 e4+ Kc4 e3 a7 e2 Nc3 e1R Nb5 Rf1 Nd6 Rh7 Ba6 Re1 Ne2 Nf6 g8B Rh3 g7 Qe7 Nc3 Ng4 Ncb5 Nc6 Ne8 Nb4 Bh7 Rf1 g8B Qe1 Bg6 Qd2 Bc2 Be7 d6 Nd5 Ra2 Bb7 c8B+ Kc6 Qe1 Bd8 Qe7 Bb6 Bce6 Bc8 Rb2 Bd7 Rb3 Nc7 Re3 Nd5 Rg1 h1Q Re5 Nh2 Rg6 Qg1 Rh6 Qg7 Nec7 Rf8 Ne8 Rf5 Qd8 Bc8 a8B+ Bb7 Qg5 Qc7 Qg4 Rfh5 Bef7 Rf5 Na7+ Kd7 Qg7 Bc6 Qh7 Ba4 B8b7 Ne7 Bbe4 Nd5 c6+ Kd8 Re7 Rfh5 Nf6 Nc3 Kb4 Ra5 Bad3 Nd5+ Kc4 Rg1 Re5 Re1 Nd7 Rf1 Be6 Ke8 Nf6+ Kf8 Qf5 Kg7 Bef7 Rh4 Qd7 Rh3 Rh8 Rh7 Ne8+ Kh6 Re6+ Kg5 Re5+ Kf4 Be6 Rh5 Rh6 Rh3
2r1Q2q/1RN3n1/2PP2B1/1N1bKPN1/1rqNpR2/3N2B1/6bP/N1n3rk w - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 d4 b3 axb3 Nf6 b4 Ng8 b5 Ba6 Bh3 Bb7 Bf1 Bc8 Bh6 d5 Bc1 c5 Na3 e6 Nb1 Bd6 c3 Be5 dxc5 d4 Nh3 d3 Ng1 Bd4 cxd4 Qb6 Qf3 Qd6 Qd1 Qd8 Kd2 Kd7 Kc3 a5 f4 g5 b4 e5 b6 Kc6 h6 Kd5 c6 Ke4 f6 a4 b7 a3 f7 d2 f8N a2 h7 g4 b5 g3 d5 g2 d6 Qc7 b6 Nd7 b8N Qa7 b7 Qf2 Ne2 Kf3 Nd4+ Ke3 Na3 g1Q Ndc2+ Ke4 Na6 Qg5 b8N Nc5 Nab4 Qd8 Rb1 a1R Qe2+ Qe3+ Nd3 d1B Na6 Be6 Nc7 Ne7 Rb7 Rc8 Nab5 Bd5 Nfe6 Nf5 Ned4 Ng7 f5 Ra4 Na1 Rg8 h8N Rb4 Nf7 Nb3 Bd2 Qf8 Be1 Nc1 Bg3 B1b3 Qe1 Qe2 Ng5+ Ke3 Bh3 Bg2 Rf1 Bbd5 Bg4 Qf6 Bh5 e4 Rf4 Qh6 Qd1 Qh8 Bg6 Qf1 Qa4 Qe2 Qa8 Qa2 Ndf3 Ke2 Qb8 Kf1 Nfd4+ Kg1 Qa8 Rcf8 Qe8 Qc4+ Kd2 Kh1 Ke3 Qc3 Rf2 Qc4 Kf4 Qa2 Ke5 Qc4 Qe6 Ra8 Rf4 Rgc8 Qe8 Ra2 Na8 Re2 Nac7 Re1 Rg4 Rd1 Rf4 Rg1
2B3QR/K1R1R1qP/Prr1R2R/P5Np/6q1/qq4qR/4NB1P/3b1k1b w - - 0 1 legal: proof: e4 a5 c4 h5 b4 d5 bxa5 g6 cxd5 Kd7 g4 Rh7 d6 Bh6 g5 Rh8 gxh6 Ke8 d4 e5 f4 Ra7 d5 Ra8 d7+ Kf8 d6 Nf6 Bb2 Nc6 Bc1 Nd5 exd5 e4 Qe2 Rg8 Qd1 Ne5 fxe5 Rh8 Kf2 b5 Ke3 f5 Kd4 Kf7 Kc5 g5 a4 Kg6 a6 e3 h7 f4 a5 Kf5 e6 Ke4 e7 f3 e8R+ Qe7 d8R f2 Ne2 Kf3 Qc2 g4 Qa4 g3 Nec3 g2 Qc4 g1Q Ra4 e2 Rd7 e1Q Ne2 b4 Be3 b3 Nbc3 b2 Ra3 b1Q Bh3 f1B Ne4 Qg4 Bf2+ Qb3 Kc6 Qf8 Rde7 Rb8 d7 Qfg7 d8R Bg2 d6 Rb6+ Kc5 Qec3 Rc1 Bh1 d7 Rf8 Re6 Rf6 R8e7 Qe5+ Qd5 Qeg3 Rh8 Rh6 d8R Bd7 Qa8 Ba4 Rd5 c6 Rde5 Rf6 Qg8 Rg6 Kd6 c5+ Kc7 c4 Rd6 c3 Ree6 c2 Kc8 Q4h4 Bf5 Kg2 Ng5 Qhg4 Kc7 Qd5 Rb3 Rc6+ Kb8 Rh6 Rc3 Qb3+ Ka7 Rb6 Rcc7 Rg6 Ra1 c1Q Ra3 Kf1 Rdc6 Qbc4 Rf3 Bd1 Rd3 Qa3 Rf3 Q3e5 Rh3 Qcb3 Rcd6 Rf6 Rdc6 Qeg3 Rcd6 Rf8 Rh6 Rf7 Bc8 Rf6 Rde6 Rg6 Re3 Rgd6 R3e6 Rdc6
qB1nBN2/nnQ3PN/Krp3PR/3BrR2/3n4/4kPPB/1r4B1/2r2B2 w - - 0 1 illegal: No proof kernel
1R3B2/PPK1Q1b1/n1n1R1RR/3N2rr/2qrB3/Pb1bR2P/1N1k1b2/1R1r4 w - - 0 1 illegal: No proof kernel
2NBr2r/2n3Kp/1P1r3N/n2Bb2r/q2NNRPP/3Q2rk/P1N3N1/2Rb4 w - - 0 1 legal: proof: d4 a5 f4 b5 b4 g5 bxa5 e5 dxe5 b4 fxg5 b3 cxb3 Na6 b4 Nb8 b5 Be7 Qb3 Bc5 Qd1 Bf8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 g4 d5 h4 c5 e4 c4 b6 d4 a6 d3 g6 c3 a7 c2 g7 d2 Bc4+ Qd5 Kg5 f4 Ne2 f3 Nd4+ Kd7 Rf1 f2 Na3 Nf6 Kh6 Ba6 e6+ Ke7 e5 Qb5 Bd5 Ne8 Qf3 d1R Qd3 Nc6 Bg5+ Nf6 Rb1 c1R Nac2 Re8 a8N Qa4 Nc7 Na5 Rb4 Ra1 Rh1 Rdb1 Rc1 f1R Rc4 Rb5 Rb4 Kd8 e7+ Kd7 e6+ Kd6 Rc4 Ke5 Rb4 Rb8 e8N Bd6 g8N Rg1 e7 Rg3 Nce6 Rc5 N8c7 Ne8 Ncb5 Nc7 Nc3 Re8 Kg7 Bc4 Ne4 Bb3 Nf4 Rb5 Rg1 Rf1 Ng2 Rf6 Rc1 Rc5 Nce1 Bd1 Nh6 Rc2 Rc4 Rcf2 Nec2 R2f5 Be3 Rh5 Bg5 Ba3 Rb4 Bb2 Rc4 Ra8 e8N Bc3 N8d6 Rae8 Bd2 Bb2 Nc8 Ba1 Nge3 Kf4 Bb4 Bc3 Be7 Ba1 Bd8 Bb2 Nb5 Be5 Nbd4 Rf3 Nd2 Kg3 Ne4+ Kh3 Ng2 Rg3 Rb4 Be2 Rf1 Bd1 Rf4 Rhf8 Rb1 Rh8 Rc1 Rd6+
B1nbN1rB/2n1PK1R/p2r3B/4N3/1PRq2B1/1b2Pr2/4kBqP/BQ2r3 w - - 0 1 illegal: No possible last move, all moves rejected
3B4/N1P2Rrq/3r4/2N3BB/1q1P1BBn/K1p1BP2/b2PR1qb/2kq2nQ w - - 0 1 illegal: No proof kernel
B3nRNr/P1B1P3/1B5r/qpr3k1/1P1Rqn2/P1K5/Q2Bq2N/B1b2n1B w - - 0 1 illegal: No proof kernel
nNQ2N2/r2n1q2/1PP3rN/5BbN/RR2p1r1/7P/NBKnP1r1/2Nq2k1 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 b4 f5 b3 axb3 Ba6 b4 Bc4 b5 Be6 fxe6 Rh7 Bd2 Rh6 Bc1 Rh8 Kd2 Ke7 b4 Kf6 c4 Kf5 c6 Ke4 e7 a5 e8N f5 h6 g5 c5 d5 h3 d4 c7 g4 c8N f4 b6 a4 b5 f3 b7 g3 b6 g2 c6 d3 h7 a3 Kc3 a2 Kd2 f2 Nf3 g1R Ng7 Rg4 Ne7 Nf6 Nef5 Ra7 Bb2 Ne8 Nh5 Qf6 Ne1 Nd7 b8N Be7 Nh6 Rhg8 h8N Qf7 Ng6 Nc7 Nf8 Na8 Nc3+ Kd4 Rg1 R8g6 Bg2 f1N+ Kc1 Ke3 Be4 Kf2 Bf5 d2+ Kc2 e4 Nd3+ Ke3 Rh1 Bg5 Nc1 Kf2 Rb1 a1R N3a2 Kg2 Rg1+ Kh2 Rg3 Kh1 Ra3 Kg1 Ra4 Rg2 Be5 Rg4 Rbb4 Rb1 Bc3 Rb3 Bb2 Rbg3 Qe1 Rg2 Qh4 Rh2 Qg3+ Rg2 Qc7 d1Q+ Kb1 Qe1 Qc8 Nd2+ Kc2 Qd1+
1rB1N2N/kr4P1/2b1N3/3qN3/1nQ1RP1B/nP1PrK2/1ppN1R1N/2q1b3 w - - 0 1 illegal: No proof kernel
k1r2bq1/1R1p2PN/p2R4/PQPnBr2/4N3/3n1NNq/5NNP/1q1KbB2 w - - 0 1 legal: proof: g4 c5 d4 h5 b4 g5 bxc5 e5 dxe5 b6 f3 Bb7 gxh5 g4 Bh3 g3 Bf1 Be4 Bg5 Bf5 Bc1 Bg4 fxg4 Be7 Qd4 Bd6 Qd1 Bf8 a4 f5 c4 b5 e4 g2 a5 b4 c6 f4 e6 a6 e5 b3 c5 b2 g5 f3 c7 Nh6 c8N Rg8 e7 Qb6 g6 Qe6 g7 Qd5 Nd2 b1Q Qb3 f2+ Kd1 Qd6 Nh3 g1B Qb5 Qa2 Bb2 Qd3 Rb1 Qe3 Nf3 Ng4 h6 Qea3 h7 Qa1 h8N Q3a2 Ng6 Rh8 Ngh4 Qg8 Ng2 Nf6 Bc3 Nc6 Bb2 Kf7 e8N Ke6 Ne7 Nb4 Nd6 Nfd5 Ne4 Nd3 Nf5 Rc8 Nfg3 Rh5 Bd4 Ke7 e6 Kd8 e7+ Kc7 Bb2 Rf5 e8N+ Kd8 N8f6 Kc7 Nh7 Qa3 Qa4 Kb8 Be5+ Ka8 Rb7 Qb4 Qb5 Qb2 Be2 f1Q+ Nge1 Qa3 Nhf2 Qh3 Ng2 Qb2 Bf1 Qb1+ Kd2 Nc3 Ng4 Re8 Be2 Bf2 Rd1 Nf4 Bd3 Rc8 Bf1 Qbb3 Kc1 Be1 Rd6 Ncd5 Ngf2 Qb2+ Kd1 Nd3 Rc6 Qb4 Rd6 Qb1+
3Q1b1n/R1K1P1PN/1RpRPr1P/2bRpB2/2R3b1/1nq1N1r1/RB3k2/2b5 w - - 0 1 illegal: No proof kernel
r2r4/rPBqRPQK/1N2BP2/nB2B2B/R2P4/1b2pB2/p6p/1k1nb2N w - - 0 1 illegal: No proof kernel
1Q1R4/2N4P/4PRqN/K2N3N/P3Nnrb/Prp1N1p1/qn1pk3/1bB4B w - - 0 1 illegal: No proof kernel
8/1RPP1pk1/1qn1bp1r/n1NNN1N1/NBq1K3/p3R3/1PrQP3/N1b2B2 w - - 0 1 illegal: Other
B7/B1NqPK1k/2q2B1b/p3pP1p/2NBPR1r/rRQ2b2/nB2P3/3B3b w - - 0 1 illegal: No proof kernel
b4NB1/bR5K/B1n4p/rB4BB/2qp3P/knpBb1P1/2PPp1qN/1R2Q3 w - - 0 1 illegal: No proof kernel
4BB2/3P2N1/rqn2p1B/p6b/1bp2B2/P2KRQ2/1pPBRPq1/N1rqB1k1 w - - 0 1 illegal: No possible last move, all moves rejected
5r2/1NpRR1N1/kpq1R1K1/2rBp1P1/5PPN/r7/PQ2pb2/2NR2B1 w - - 0 1 illegal: Other
n2bqBb1/2R5/BqrQNP2/N4P1b/4PKb1/4B3/N2rRNPr/2B3k1 w - - 0 1 illegal: No proof kernel
8/1Bkq2N1/1n1RPrN1/r5B1/p2R2K1/n1PnbN1b/qPR2PQR/2N5 w - - 0 1 illegal: No possible last move
5n2/K2NN2q/2BR3r/2r5/P1kP1Rrb/p1PR4/1B4PN/QbqNbR2 w - - 0 1 illegal: No proof kernel
1N1N2rB/1Q1N4/K3P1Pq/1pn1R1rR/N3B1B1/B4nn1/1PqPk3/1b5q w - - 0 1 illegal: Other
2rqrn1Q/3Bq2r/1BN1N1B1/2rP1B2/6bP/1q4R1/1pK1P2P/kNR2N2 w - - 0 1 illegal: No possible last move
B1NN2b1/R1qR4/N1r2b1P/1r6/P3pN1B/K1bB1Qr1/2pP3P/1k2Bn2 w - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 h5 c4 f5 cxd5 c5 exf5 Nh6 g4 Nc6 gxh5 Ng8 dxc6 Rh7 Nc3 Rh6 Nb1 Rh8 f4 Kf7 c7 Kf6 h6 e5 a6 g5 a7 b5 Na3 c4 Ne2 c3 Nc2 b4 Rg1 b3 Nb4 g4 Bb2 g3 Na6 Bd7 c8N e4 a3 Rb8 a8B g2 Ra2 Rb6 Ra1 Kf7 f6 Ke6 f7 Nf6 f5+ Ke5 Nf4 Kd4 Qf3 Nd5 Kd1 Rc6 Kc1 Ne3 f6 Be7 f8N Qc7 f7 Be6 Bd3 Bf6 Rf1 g1B Kb1 Bd5 N8e6+ Ke5 f8B Rg8 Kc1 Rg3 Nd8 Kd4 Be7 Bg8 Rf2 Nf1 Rg2 Rh3 Rg7 Rg3 Bd6 Bf2 Rd7 Be3 Ra2 Bg1 Ba1 b2+ Kc2 b1R Bc5+ Ke5 Bf2 Rb5 Be1 Bd4 Bb2 Rd5 Kb3 c2 a4 Bc3 Ka3 Rdc5 Ba1 Rb5 Rb2 Kf5 Qg2 Kg4 Qh3+ Kf3 Qf5 Rd5 Rb7 Rb5 Ra7 Rg7 Bh4 Rg3 Qg4+ Kf2 Qf3+ Ke1 Bb2 Ba5 Be5 Bc3 Qf2+ Kd1 Qf3+ Kc1 Bd4 Rb4 Bf2 Rb5 Be1 Kb1
1RNR4/2Kb4/2p1qNp1/k2P4/2R1R1PB/1bP1Q1r1/PnrN2BN/q3q3 w - - 0 1 legal: proof: f4 d5 h4 b5 b4 a5 bxa5 e5 fxe5 d4 h5 d3 h6 g6 exd3 Bd6 d4 Bf8 d5 Bg7 hxg7 Nd7 Ne2 Qf6 Ng1 Nb6 axb6 Qd8 Kf2 Kd7 Ke3 h5 Ke4 f5+ Kd4 c6 Kc5 f4 g4 b4 d4 h4 d6 b3 d5 b2 b7 h3 b8R h2 Qe2 f3 Qe3 f2 Bg2 f1B Nf3 Nh6 g8N Qe8 Kb6 Bc4 Nbd2 Qe6 Re1 h1Q Ne7 Nf5 Nh2 b1Q+ Bb2 Qd1 Rc1 Ra3 Re2 Kd8 d7 Qde1 Bd4 Nd6 Bc3 Qf6 e6 Bb3 Bd4 Qf7 Bf6 Rh6 Bh4 Nc4+ Kc5 Kc7 d8R Bd7 Nc8 Rh8 e7 Qe6 c3 Nb2 Rb1 Ra6 Rb4 Rb6 e8N+ Kb7 Rc4 Ka6 Nf6 Ka5 Qd3 Rh5 Ree4 Rf5 Qe3 Rf3 Ne7 Rg3 Nc8 Qg8 Kd6 Qe6+ Kc7 Rb8 Rh8 Qhf1 Nb6 Rf8 Nc8 Rf7 Rd8 Rf8 Ne8 Rf2 Nf6 Qh1 Ndf1 Rc2 Nd2 Qhg1 Bf3 Qef2 Bg2 Na4 Rcd4 Bc4 Rb8 Nb2 Rh8 Bb3 Rd8 Qa1 Rc4 Qfe1
R1nQ1RB1/1p3PBK/4PNn1/q1b2Nq1/Pk6/2r2r1p/5Pn1/R4RBB w - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 g5 b4 e5 bxa5 f5 h4 Be7 hxg5 Bd7 d3 Ba4 Ne2 Bf8 Ng1 Bc2 exf5 e4 Qf3 e3 Qe2 Bd1 Qd2 Bf3 Qd1 Be4 dxe4 Bh6 Rh2 Bg7 Rh1 Bf8 Ke2 Ke7 Kd3 Kd6 g4 Kc5 a4 h5 g6 h4 g5 c6 e5 h3 Ke4 e2 f6 e1Q+ Kf5 Qe7 d6 Qc7 f7 Qc3 a6 Qf3+ Bf4 Ra7 d7 Bd6 d8B Qh5 e6 Qh4 g7 Rh7 Kg6 Rh8 Bf6 Qa5 Bh2 Kb4 Nf3 c5 Bg2 c4 Nbd2 c3 Ne4 c2 Rf1 c1N Bh1 Ne2 Bg1 Nd7 Nd4 Bc5 Nf5 Nb6 Qd8 Nc8 Be5 Ra8 a7 Rh5 Nf6 Rb8 a8R Qg4 Nh6 Nge7+ Kh7 Ng6 g8R Nef4 Rf8 Ng2 Bd4 Qf4 Bb2 Rh4 Bd4 Rg4 Nf5 Rg3 Bb2 Rf3 Be5 N6h4 g6 Qg5 g7 Ng6 g8B Nb6 Ng4 Rc8 Bg7 Rc7 Nf6 Nc8 Rb8 Be7 Ra8 Rcc3 Ng4 Bd6 Nf6 Bc5
N3b1Br/b1r3N1/1RP1P1KB/2NBp3/2Pb2P1/k4Np1/b2R1B1q/Q4q2 w - - 0 1 illegal: No proof kernel
N3k1BR/2B3bp/2p2BP1/R1PQ4/3NP1nq/2rp4/b1P2KN1/1N1B2rb w - - 0 1 illegal: No possible last move
2BBQ3/1p1qR3/qP2B1R1/2PB1Rb1/N1P1Rp1n/1k3r1n/1P3Np1/2K4n w - - 0 1 legal: proof: f4 a5 g4 c5 d4 e5 fxe5 h5 gxh5 Rh7 dxc5 Rh6 a4 Rh8 h3 g5 Nd2 d6 Ra3 g4 Ra1 g3 Nb1 Bg4 hxg4 Ra6 Bg2 Rb6 Bf1 Rb5 axb5 Qc8 Ra3 Qc7 Ra1 Qd8 Kd2 Kd7 c4 Ke6 e4 f5 h6 d5 g5 d4 b6 d3 h7 a4 g6 a3 g7 a2 Nh3 Nc6 Rg1 Qd4 Qh5 Nh6 g8B+ Nf7 Nf2 Nd8 Bg2 Nc6 Nc3 Qd7 Na4 Nd4 Kd1 Qc6 Bg5 d2 Bd8 Nf3 Kc2 d1N Kc1 f4 Rb1 a1Q Bh1 Kd7 e6+ Ke8 e5 Qd7 e7 Nh4 Bf3 Bh6 Bd5 Bg5 Re1 Qa3 Re4 g2 Ra1 Qb3 Ra3 Qbb5 Rg3 Qa6 Qg6 Ne3 Rg4 Nef5 Be6 Ng3 Qh5 Bh6 Rg6 Nh1 Bd5 Ng5 Bge6 Rg8 h8R Nh3 Qe2 Bg5 Rh5 Qc6 Bc8 Qe6 Qe1 Kf7 e8R Rh8 Rgh6 Kg7 Re7+ Qf7 e6 Rg8 Rh8 Kf6 R8h6+ Kf5 Rg6 Rh8 Qc3 Rh7 Qh8 Rh6 Qe8 Rh8 Rc7 Qd7 e7 Rh6 Qh8 Rh7 e8B Re7 Bef7 Re5 Re2 Re3 Qe8 Ra3 Re7 Rf3 Bfe6+ Ke5 Rc6 Kd4 Rd6 Bf6 Rf5 Bg5 Be4+ Ke3 Rd4 Ke2 B4d5 Ke3 Kb1 Ke2 Re4+ Kd2 Ka2 Kc2 Ka1 Kb3 Kb1 Bf6 Kc1 Bg5
BK1B1N2/PR4bp/1q1k2N1/N6P/2r1r1R1/2p1n3/1BrPNpP1/5QBr w - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 d5 cxd5 g5 f4 b4 fxg5 Nd7 e4 Nb6 a4 Be6 d6 Nd5 exd5 Bg4 Be2 Bd7 Bf1 Bb5 axb5 Qd7 Ra4 Qc8 Ra1 Qd8 Ke2 Kd7 Kf3 c5 Ke4 e5 h4 c4 h5 c3 a6 f6 a7 b3 g6 b2 b6 Rc8 b7 Qa5 b8N+ Kd8 d7 Kc7 d8B+ Kd6 g7 Rc6 Bc4 Rc7 Ne2 Qa3 Nd7 Qc5 Qf1 Qg1 Na3 b1R Rh4 Rb3 Rb1 Qf2 Bb2 Rc5 Bb6 Ne7 g8N Nf5 Rg4 Bg7 Nf8 Ne3 Ne7 Rg8 Ba6 Rc4+ Bd4 Qg1 Bb7 Rb6 Neg6 f5+ Kd3 f4 Ke4 f3 Ba8 Nc2 Kf5 e4 Bf2 Ne3+ Kf4 Kc5 d6 Ra6 d7 Kd6 d8B Rh8 Nc2 Ra2 Ncd4 Rg8 Nc6 Rh8 Ne6 Re8 Nef8 Re6 Na5 Re8 Bc1 Rc2 Rb7 Re5 Bb2 Re7 Qa1 Qb1 Bg1 f2 Bc1 Qb6 Bb2 Re8 Qe1 Nd1 Qf1 e3+ Nd4 e2 Kf5 e1R Ne2 Bh6 Kf6 Ree4 Kf7 Rf4+ Ke8 Bg7 Nc6 Kc5 Kd7 Rfe4 Kc8 Ne3 Na5 Kd6+ Kb8 Ra1 Rg5 Rh4 Rg3 Rh1 Rg4 Raa4 Bh4 Re4 Bd8 Rac4
4Bqn1/2nRr3/1Kb2k2/BPR2N1q/1N1qP2P/b2Qn1B1/R1r2PbB/2R5 w - - 0 1 illegal: No proof kernel
1B1K2B1/qk3B2/4Pb1P/4NnrN/NP1R1bP1/1nR1q1QN/1q1B4/rb3r2 w - - 0 1 illegal: No proof kernel
1R1B1B2/r1bn2P1/NqPR4/n1r1PbK1/1qR1Pq2/B1Q2R2/1b2n2k/2N4B w - - 0 1 illegal: No possible last move
rr2B1R1/3rBP1B/2k2P1q/1N3N1K/b1Pb1N1B/2qq4/2Q1NRP1/n2nb3 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 e5 Kf3 d5 Kg4 Kd7 b4 a5 f4 a4 c6+ Kc7 b6+ Kd6 c7 d4 g6 a3 g7 a2 b7 h6 b5 d3 b6 e4 Nh3 e3 Ba3+ Kc6 Nc3 e2 Kh5 e1R f6 d2 f7 Qd3 f5 Re7 f6 Nd7 b8B Nc5 b7 Nb3 Nf4 Bd7 Nce2 Qc3 c8N Be8 Qb1 d1Q Nd6 Rd7 Nf5 Ne7 g8B Nd5 Be7 Qdd3 Bh7 Ne3 Bbd6 Nd1 b8N+ Kb7 Na6 Kc6 Nc7 Rb8 Kg6 h5 Nb5 h4 Kh5 h3 Bc5 h2 Bf2 Bh6 Bh4 Rf8 Rg1 h1Q Qc1 Rg8 Rb1 a1B Rb2 Qhh3 Rh1 Qhe3 Rh3 Ra8 Rg3 Rf8 Ra2 Bb2 Qb1 Na1 Rg8 Qed2 Nh3 Be3 Nhf4 Bf2 Qc1 Be1 Qb1 Qb4 Qc1 Bd4 c3 Qc5 Qc2 Qe5 c4 Bc5 Ned4+ Kb6 Nd6 Bg3 Qc1 Rda7 Be2 Q3e3 Nd3 Be1 Bf3 Ba4 Bc6 Rfb8 Be8 Rd7 N6b5 Q5e4 Rb2 Qc3 Rf2 Qd5 Ne2 Kc6 Qc2 Qh6+ Kg4 Qdd4+ Ndf4 Qdd2 Nc7 Qdd3 Nb5 Qg7+ Kh5 Bd4 Nh6 Qf8 Nf5 Qh6+
QRrn2n1/P1Rq3B/R2BkbPP/r1nb3K/8/1Bn3P1/3B3R/1b2N1Nn w - - 0 1 illegal: No proof kernel
q1Rb2BN/B1r2Bb1/P2Q4/rP3n1K/P1b2b2/2P1N1k1/r1N2nB1/nN2R3 w - - 0 1 illegal: No proof kernel
8/k1PR1NRN/2Q4n/b1nqP1rb/NB1B3r/q2q3P/B1rBP1r1/3N1K2 w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 b4 g5 c4 d5 h6 Kd7 c6+ Kc7 h3 Kb6 c5+ Kc7 h7 a5 Bg2 f5 Kf1 f4 Qa4 f3 Nc3 f2 Nf3 d4 Rg1 g4 Nd1 d3 Bd2 g3 Ng5 Nd7 b6+ Kb8 b7 Ka7 c7 Nh6 c6 Nc5 b5 Bg4 Bd5 Rc8 Ba2 Qd5 Qc4 Rg8 h8N a4 Nhf7 a3 Nh7 Rg5 Rb1 Bh5 b8B+ Ka8 b6 Be7 Bc3 d2 Ba7 Rh8 c8N Bd8 Qa6 Qd3 Rb4 Bc7 Rd4 Bd8 Kg2 f1R Rd7 Rf4 Bb4 Rc4 Kf1 Rc2 Qc4 Be7 c7 g2+ Kf2 Kb7 Qe4+ Ka6 b7 Qd5 b8B Kb7 Nb2 d1Q Nb6 Qd3 N6a4 Bf8 Nd1 Ka8 Re1 g1R Qg6 R1g3 Rg1 Rg2+ Kf1 Kb7 Bb6 Ka6 B8a7 Bd6 Bb3 a2 B6a5 a1Q Ba2 Qc1 B7b6 Qca3 Bd2 Bf8 Qc6 Be7 Bac3 Bf8 Bba5+ Ka7 Ba1 Na6 B5c3 Bb4 Bd4+ Nc5 Bac3 Ba5 Bb4 R2g4 Rg3 Rh4 Rf3 Rg2 Rg3 Re8 Rg7 Re6 Qb5 Reg6 Qc6 R6g5
B2bB3/1rq2b1n/r2p1PN1/2P1b1BB/3k1r2/1K1nN2P/P1RNQ3/R4q1N w - - 0 1 illegal: No possible last move
1r5B/2B1qP1r/1n1pb2Q/q1N1N2r/2PnR2q/RPR3PB/R5B1/b3K1k1 w - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 c4 e5 g6+ Kf6 b6 h5 b3 a5 b7 a4 g3 h4 c6 a3 c7 d6 g7 h3 Qd2 a2 Bb2 h2 Bg2 Ra5 Nf3 Be6 c8B Ne7 g8R Nbc6 b8B Nd5 Bc7 Nb6 Nc3 e4 Rg4 e3 Na4+ Nd4 Nc5 e2 Ne5 Bg7 Rf1 Ra8 Rf3 Rh5 Rc3 Rb8 Rh4 Bh8 Qc1 Kg7 f6+ Kh6 f7 h1R+ Bf1 Qf6 f8R Bg7 Rh2 Qh4 Re8 Bf6 Rf2 Rh3 Bg2 Bg7 Rb1 a1Q Bd7 Qa7 Ra1 Qa5 Ra3 Rh2 Ng4+ Kg6 Ne5+ Kf6 f5 Bh8 Rf4 Kg5 f6 Rh7 Rf2+ Kh5 Ng6 Kg4 f7 Rh5 Qh6 Bf6 Ba8 Kh3 Ne5 Bh8 Rg8 Bf6 Rg4 Bh8 Re4 Bg7 Rf6 Kg2 Rf2+ Kg1 Bac6 Bd5 Bh3 Be6 Re3 Bh8 Bcg2 Bf6 Re4 Bg7 Kd2 e1Q+ Kd3 Rh1 Nc6 Nb5 Rcc2 Bc8 Qh7 Bd4 Be6 Qa4 Ref4 Re5 Qh8 Qe4+ Kd2 Qd8 Bf5 Rh6 Bfh3 Reh5 R2f3 Qe6 Re4 Qh4 Ke1 Qee7 Qf6 Rh7 Qh6 Bd7 Ba1 Be6 Rca2 Be3 Bg7 Bd4 Ne5 Ba1 Rc3 Nd4 Bh8 Qa5
k1B3r1/3KrR1B/2N2p2/1nQP1Nbn/B1N1R1Pb/7r/1Nb2P1P/1q1b2B1 w - - 0 1 illegal: Other
4Bnr1/q2rn1Q1/P1b3RR/1K2P2B/3b2N1/2pnn1Pb/2BP2k1/2RN1RB1 w - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 a4 Ke7 e4 b5 Ke2 f5 Kd3 c5 d6+ Ke6 d7 h5 g3 h4 a6 b4 Kc4 b3 a7 f4 a5 h3 a6 f3 g6 b2 g7 f2 Nc3 b1N Bd3 f1N Ba3 h2 Nh3 Qb6 d8R Nd7 Bc2 Ne7 g8R Rh7 Nf2 Bg7 Ng4 Nf8 Bb2 Qc7 Kb5 Ne3 Rf1 h1B Qe1 c4 Nd1 Bh8 Bd4 c3 Rg6+ Bf6 Bb6 Rb8 a8B Qa7 Bc6 Bf3 Be8 Na3+ Kb4 Nac4 Kb5 Ra8 Rc1 Nb2 Rh6 Bh1 Bh5 Nd3 Qf2 Rb8 Qf4 Bg2 Qg5 Bb7 Rd5 Bh3 Qg7 Rd8 Bd4 Rh8 Rc5 Rg8 Rc6+ Rd6 Rb6 Bc6+ Ka5 Kd7 e6+ Kc7 Bc5 Rd7 Bd4 Kd6 e5+ Kd5 Bc5 Ke4 Bd4 Bg5 Bc5 Ng2 Bg1 Be3 Rg6 Bd4 Rh6 Nd5 e7 Nge3 e8B Ne7 Rg6 Bb7 Rh6 Bd5 Rbg6 Bc6 Bf2 Kf3 Bg1+ Nf2 Kb4 Kg2 Ka5 Bf3 Kb4 Nd3+ Kb5 Bc6+
b7/K4BP1/N3q3/2P2P1r/1n1N1r1b/NnknQpP1/1RBNBn2/2rRB3 w - - 0 1 illegal: No proof kernel
4bN2/1B1PR1qB/1Prr1n2/1rPbB2p/NR6/k1KR3R/b1B1bQ1P/7n w - - 0 1 illegal: No proof kernel
bN2N2B/1q1r3B/2N1K1nr/3n2RP/pb2N3/kP2QrPR/2P1r2q/3B2B1 w - - 0 1 illegal: No proof kernel
3rk3/nqR1bN2/2P2qb1/5P2/1p2BPQN/1P1BK1bR/qB4b1/N3NB1r w - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 b4 d4 Nc6 dxc5 Nd4 Bf4 Kf7 Bc1 Nb5 axb5 Ke8 Kd2 e5 c4 d5 g4 h5 f4 a5 b6 h4 c6 a4 b3 a3 b7 e4 b8N d4 c7 a2 g6 d3 c5 h3 g7 h2 g5 Kf7 c6 Be7 g6+ Ke8 Nf3 Rh4 Na6 Nf6 g8N Rh8 g7 Bd7 c8B Nd5 Bb2 Nb6 Ke3 d2 Nc5 Rb8 Qe2 d1Q Ba6 Nc8 Nd3 Na7 Nh4 Qa5 Ne1 Rd8 Nh6 Qe5 g8B Qf6 Rg1 h1B Bd3 Bg2 Na3 Rh7 Rc1 a1Q Bd5 Qa2 Qg4 Be6 Rc4 Bf7 Rc3 Bg6 Nf7 Rh6 Nac2 Rh8 Nhf3 Rh1 Nh4 Qda1 B5c4 Qa6 Bd5 Q1a2 Na1 Qb5 Ke2 e3 Be4 Bh3 Kf3 e2 Ke3 Qb7 Rg3 Bg2 Rh3 Kf8 Rc4 Ke8 Rd4 Nc8 Rd7 Na7 Nef3 e1B Rc7 Bg3 Ne1 Rd5 Ba3 Rd4 Bb2 Rd8
2N1rn2/1Rn1q3/nN4pk/3q2Nn/RP1R1bB1/PN4b1/K1PQ1RPB/5b2 w - - 0 1 illegal: No proof kernel
2bNR2R/P2P4/bbp1K2B/3Q1B1k/R3rqn1/2bRnPq1/q1P2N2/4BB2 w - - 0 1 legal: proof: g4 d5 h4 g5 b4 b5 e4 a5 exd5 f5 gxf5 g4 bxa5 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Be6 Qf3 Bd7 Qd1 Bc8 Ke2 Kf7 Ke3 e5 Ke4 h5 d4 c6 a4 h4 f6 Kg6 f7 b4 f3 g3 d6 h3 d5 h2 d7 b3 a6 b2 a5 g2 a7 Na6 a8R Nc7 d6 Rh7 a6 Be7 f8B Qe8 d8R Nd5 a7 Nh6 Ra4 Rg7 Nc3 b1Q Nb5 Qa2 Nd4 Ne3 Ne6 Kh5 g6 Nhg4 Nh3 g1B Bd2 Bf6 Nf2 Re7 g7 Qf7 g8B Bh8 Bh6 Qf4+ Kd3 Bg7 Bh7 Re8 Kc3 e4+ Kb4 Ba1 Kc5 Bc3 Be1 Re7 d7 Re8 Bf5 Re7 Nh3 Bf2 Rg1 h1B Re8 Bg2 Nd8 Re5+ Qd5 Re6 Bc4 Bf1 Rg2 Re5 Kd6 Bg1 Nf2 Bd3 Bb3 Bda6 Bc4 Nh2 Re6 Qg5 Bf1 Neg4 Nb7 Nf6 Nd3 e3 Be4 e2 Bd2 e1Q Bf5 Qeg3 Be1 Q5f4 Rd2 Bb6 Nf2 Re4+ Ke7 Bca5 Rd3 Bc3 Nc5 Bcb7 Rh8 Bc8 Nb7 Qe5 Nd8 Qef4 Qe5 Nhg4 Kd6 Re2 Ree8 Re4 Ke7 Nd5+ Ke6 Rb4 Qd4 Nde3+ Qd5 Re4+
1B3nbb/N3BP2/2p4q/r2nQR1P/1P1RB1r1/1p4b1/1NR1P1RK/1k4nB w - - 0 1 illegal: No proof kernel
B1bq4/pp1R4/1n1P1BR1/1k2P2P/3K1PR1/b4r1B/3QnNR1/r1nN1r1B w - - 0 1 illegal: Other
2q1N2n/2Br2N1/Rpp5/Qn1PB3/R2b2q1/qP2rR1B/1k1BKP1P/6bR w - - 0 1 legal: proof: e4 d5 c4 f5 exf5 h5 cxd5 h4 a4 h3 a5 b6 a6 Bb7 axb7 Kd7 gxh3 Rh6 h4 Ke8 h5 Rh8 d4 Kf7 b3 Kf6 h6 g5 d6 e5 h7 a5 d7 c6 d5 e4 Bh3 Ke5 f6 e3 f7 e2 Bf5 g4 Ra2 a4 Rc2 g3 Ra2 a3 Be6 g2 Bh3 Bc5 f8R Qc8 d8B Ne7 Rf3 Bd4 Qd2 Ra7 Nc3 Na6 b8B+ Nc7 Nb5 Ng6 Qa5 Re8 Bd2 Nh8 Nd6 Nb5 Bdc7 Re6 Ra1 a2 Ne8+ Ke4 Be5 Rd7 Bbc7 Ree7 Bg4 Re6 Nh3 g1B Nf4 Ree7 Bh3 Re6 Rb1 a1Q Nh5 Qa3 Nhg7 Ree7 Ra1 Re6 Rf4+ Kd3 Rf3+ Kc2 Ra2+ Qb2 Ra4 Qa3 Nf6 Kb2 Nfe8 Ng6 h8R Ree7 Rh4 Nh8 Qb4 Re6 Ra6 Ree7 Qa5 Re6 Bh6 Ree7 Kd2 e1Q+ Kd3 Qd1+ Bd2 Bc3 Ra4 Bd4 Rf6 Qh5 Rf3 Qg4 Bf6 Re1 Bfe5 Rc1 Ke2 Rc3 Bf1 Rd3 Bh3 Re3+
3Qq3/RKPBpqr1/2pB1N2/2qPr3/NPRn4/BR3Pk1/2bRB3/b4n2 w - - 0 1 illegal: No proof kernel
1NKRqN1n/6B1/1R3P2/kr6/P1Bb1p1B/p2Q2q1/1nP1nPb1/1BRb2R1 w - - 0 1 illegal: No proof kernel
r2r3B/P3BN2/1bPR3N/Kp2n1N1/p1B1P1N1/3R1r1B/QP1r3b/2n3kb w - - 0 1 illegal: No proof kernel
3b4/K1r1p1b1/BPQB4/1pN1B1PN/1P1P1R2/R1rb1n2/R1qp3R/n3B1k1 w - - 0 1 illegal: No proof kernel
1n6/6bn/1NKP1pQP/2bBB2R/2n2p1p/PR1rBP1b/1N1R4/2kq1RB1 w - - 0 1 illegal: Other
2R3b1/pn3b2/B1R2B2/P2Np2k/P2Rqp1N/4PP2/QbB1Kn2/3B1bRn w - - 1 3 legal: proof: h4 c5 d4 d5 b4 b5 a4 g5 hxg5 h5 c4 Rh6 Nd2 Ra6 Nb1 Ra5 bxa5 Na6 cxd5 c4 Rh3 Rb8 Rh1 Rb7 Nf3 Rc7 Ng1 Rc5 dxc5 Qd6 Qb3 Qc7 Qd1 Qd8 g4 e5 e3 f5 c6 Kf7 d6 Kg6 c7 b4 d7 c3 Qd5 c2 Ba3 c1N Nf3 b3 Be7 b2 Rg1 f4 Qa2 h4 Bf6 h3 Nc3 b1B Nd5 Nc5 Ba6 N1d3+ Ke2 h2 Rc1 Qe7 d8R Nb7 Rc6 Be6 c8R h1B Rdd6 Bc2 Rg1 Bg2 Rdd8 Qh7 Nh4+ Kf7 f3 Nf2 Rdd6 Qe4 Rdd8 Ne7 g6+ Kg8 g5 Nf5 g7 Kh7 g6+ Kh6 g8B Ba3 g7 Bf7 Rd7 Bb2 Bh7 Bb3 g8B Kh5 Rdd6 Nh1 Rdd8 Nh6 Bf5 Ng4 Rd7 Qb1 Bc2 Ngf2 Bgh7 Bh3 Bd1 Qe4 Rdd6 Qb4 Bhc2 Qe4 Ne7 Bg8 Rd4 Bbf7 Nd5 Bf1+
n3NK2/1B1Pq3/1N1pb2p/2N1PB1P/p2p1Rn1/B1r1r1RN/PB3Q2/3k1n2 w - - 1 2 illegal: Other
1NR1B1q1/1N2kNr1/1rQbp3/2p3NP/b2pP1B1/1RKpn2P/1P2qB2/3B4 w - - 0 1 illegal: Other
2k5/P1Bp1b2/1p3r2/4Nn1b/1P1P2rp/QRB1BpP1/RKr1R2R/1N1B1n2 w - - 1 2 illegal: Other
8/2r1p3/b1Bp3k/p1pq1K2/R1RPPR2/Q2N2BB/1bP1bPb1/bN2B2R w - - 0 1 legal: proof: b4 a5 h4 g5 b5 g4 Rh2 Na6 bxa6 b5 Rh3 Rb8 Rh1 Rb6 Nc3 Rg6 Nb1 Rg5 hxg5 Bh6 Bb2 Bg7 Bc1 Bf8 a3 f5 g3 f4 gxf4 Nf6 a4 b4 Rh3 Nd5 Rh2 Nc3 Rh1 Nb5 axb5 Bg7 Ra3 Bh6 Ra1 Bf8 e4 Kf7 Ke2 Kg6 Ke3 h5 a7 g3 a8B c6 f5+ Kh7 Kf4 h4 f6 b3 g6+ Kh6 f7 g2 b6 b2 g7 h3 g8R h2 b7 Bg7 b8B Ba6 f8R c5 Ne2 Qc8 Ra4 Bd4 Be5 d6 Rg3 Bc3 Rf7 Qg8 Kf5 Bd4 Nf4 Be2 Na3 b1B Rc3 Ba2 Rcc4 Ba1 Nd3 Bb3 Bg3 Bb2 Rcb4 Bc4 Bc6 Ba6 Nb1 Ba1 Rc4 Bb2 Rg1 h1B Rf8 Qg7 Rf7 Rc8 Rf8 Ba1 Ba3 Rc7 Qc1 Qg8 Bb4 Bd1 Qa3 Bb2 Be2 Ba1 Bh5 Be2 Bg4 Bb2 Rf1 g1B Bh3 Bh2 Rd1 Bg2 Rh1 Kg7 Kg5 Ba1 Rf4 Kh7+ Kf5 Kh6 Bc3 Qd5+ Ne5 Kg7 d4 Kh6 Rg4 Qg8 Bh4 Bg3 Be1 Bf4 Bg3 Bc1 Rf4 Bcb2 Nd3 Qd5+
3qR2R/B1b2pN1/rPr1qk2/1nNR1N1K/q1P1pP2/4PN1R/bn2Q3/1B2r3 w - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 c4 g5 b4 a5 f4 d5 Kf2 e5 Kf3 Ke7 h4 a4 h6 a3 h5 d4 b6 d3 b7 a2 b5 d2 c6 Qc7 h7 Bd7 h6 Be8 Kg4 e4 Nf3 Qd8 c7 Ra6 c8N+ Kf6 Ne7 Nd7 b8N Nb6 Nd4 Na4 Nef5 Bd6 Ne6 Ne7 Rh3 Nd5 Neg7 Nb2 Kh5 g4 e3 g3 Qe2 d1R Nd2 g2 Nf3 Rc6 Na6 g1Q Nc5 Re1 b6 Rg8 h8R Bc7 h7 Nc3 Bd2 Qg2 Rd1 Nb5 Bb4 a1Q Rd5 Rf8 Rg8 Qa4 h8R Qg1 Nb3 Bd7 Bd6 Re8 Nc5 Qg4+ Kh6 Re5 Re8 Re7 Qd1 Re5 Bd3 Re7 Qe2 Re5 Ng3 Qe6 Bb1 Rg5 N3f5 Rgg1 Ba2 Ra1 Kh5 Rge1 Bb1 Qa7 Rd4 Na3 Qg2 Bb8 Rh1 Rc7 Rh3 Ba4 N3h4 Rc6 Rd3 Bb3 Nf3 Nb5 Rd5 Ra3 Qe2 Ba2 Bf8 Be5 Bd6 Qa5 Bb8 Bc7 Ba7 Qb4 Qg2 Ra6 Qe2 Qa4
4R2b/2R1PQp1/p2b2N1/Nq1rB2B/P3q1P1/5b2/PN1BkNKB/1q1rn2n w - - 0 1 illegal: Other
B3rnkN/N3b1p1/1Np1r3/1Bq2N1b/2P2P2/Pq1B1q2/RB2n1P1/3QKR1b w - - 0 1 illegal: No proof kernel
BR6/1b1NnrB1/1Q1RB1Pn/3P4/2pRrrp1/q2R2PB/2P3bb/3K1bkN w - - 0 1 illegal: No proof kernel
N1K3RB/1Rpp3b/3P4/RQ4P1/n1B2Pr1/r2N3r/RbPBr3/1nB2kbq w - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 g6 h5 Qe2 e5 Rh3 Ke7 g4 Kf6 d4 a5 Kd2 Kg5 Kd3+ Kf6 Kc4 a4 b4 h4 b6 a3 Kb5 a2 b7 e4 g7 e3 d5 Ke5 d6 Kd4 f6 Ra7 f7 Ra6 g5 Ne7 g8R Bg7 f8B Nd5 Na3 Ra7 f3 Na6 b8R Bb7 Nc4 Nc5 Nb6 Rh6 Rg3 h3 Ra8 h2 Nh3 h1R f4 Rh5 Nf2 R5h4 Bd2 Bf6 Bg7 R1h3 Bh8 Rg4 Rf3 Ra4 Ra5 Qa8 Rb1 a1R Rb2 Rc1 Ra2 Re1 Bc1 Ra3 Rg3 Qe8 Na8 Na4 Rf3 Bc6+ Ka6 Qe4 b5 Ndc3 b6 Nb1 b7 Bb5+ Ka7 Bd3 Kb8 Qd5 Rg3 Bh7 Kc8 Qh1 b8B Be5 Qa6 e2 Rb3 Bf6 Rb7 Bg7 Bb2+ Ke3 Ba7+ Kf3 Bc1 Bb2 Bc5 Kg3 Bb4 Kh2 Bg2 Kg1 Bd5 Kf1 Bc4 Rd1 Qb5 Rd2 Nd3 e1B Kb8 Re2 Kc8 Bf2 Bbd2 Bg1
N3B1NK/1RN1N1pq/5Q1p/2nR2r1/2qR2PP/n1r1bbR1/k2PP1rr/2B5 w - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 Kf2 Kd7 Kg3 a5 Kf4 f5 h4 c5 b4 c4 g4 c3 d6 Ke6 d7 Kd5 e6 Kc4 b6 a4 e7 a3 Kg5 f4 b7 h6+ Kg6 f3 e8N c2 b5 Kb3 b6 f2 Rh3+ Ka4 Nc3+ Kb3 Nf6 a2 Rg3 Ra5 Nh3 Nc6 b8R Bb7 Nf4 Na7 Bg2 f1R Nb5+ Bf3 b7 Rg1 N4d5 Bc5 Nbc7 Be3 Qf1 Nb5 Nb6 Na3 Nba8 Rg5+ Kf7 Qc8 d8R Qf5 Rd4 Qh7 Rbd8 Rh1 b8N Rh2 Bh1 Rg2 R8d5 Rh2 Nc6 Rg2 Nd7 Nf6 Ne7 Ne4 Nf6 Rc8 Nfg8 Nc5 Qf2 Be4 Qf6 Bf3 Bb2 c1Q Rb1 Qc4 Bc1+ Kc2 Rb7 a1R Bb2 Kb1 Bc1+ Ka2 Rb4 Qb1 Rb7 Rf5 Kg6 Qbd3 Kh7 Rg5+ Kh8 Rh2 Bb2 Rg1 Bc1 Rgg2 Qg6 Rb8 Rd8 Rg1 Rb4 Bb7 Bc6 Rgg2 Be8 Bf3 Qf6 Rb6 Rb1 Rb3 R8d5 Rc3 Rb7 Qh7+
r7/b1R2qBR/3n4/bN1Pp1rB/1N2PP1N/pbpnQR1q/P7/k1NK2R1 w - - 0 1 illegal: No proof kernel
rB3RR1/1K1p2n1/1p2P1k1/b1bP1NPn/1QB5/B2rN2p/bR5P/R1B1q1b1 w - - 0 1 illegal: No proof kernel
3N1R2/2ppRbR1/3PPB1k/n3rrp1/B1P1p1P1/n7/1Kb2B1q/nRQB3N w - - 2 3 illegal: No proof kernel
Rr1N3b/2p2R1r/1P2N1pR/Bp5q/2n2QPN/k1PPpB1b/2K1n2q/5NR1 w - - 0 1 illegal: No proof kernel
6B1/1NP1nq2/2Bp2r1/2p1p1k1/1K2b1BR/pnp1PR1P/P2B1r1b/1Q1R1NR1 w - - 0 1 illegal: Other
3B2Br/5n2/1RP1K3/Q1BPN1Pb/3br2R/RP1qqP2/2nbnb2/2kN1N2 w - - 0 1 illegal: No proof kernel
4RN1N/k2P1B1r/n1P3P1/5qBP/R2rBn2/KQR5/1pPNbq2/4bbb1 w - - 0 1 illegal: No proof kernel
7k/N1P5/1bBQR3/2RnPp1B/1r5n/p3q2q/PB2PKPN/bqr1NR2 w - - 0 1 illegal: Other
Rqrb1rNB/Pn1qB3/3P2bp/1PQr1P1k/4NKp1/8/R3P1n1/1B2RN2 w - - 0 1 illegal: No proof kernel
R1B3N1/P1qP2B1/1b1QrRK1/pk2Pnp1/bNNPbB2/1P6/r2b3R/6n1 w - - 0 1 illegal: No proof kernel
B1R5/2P1pP2/nP1KN1N1/1k2NRb1/qB1PQpr1/1p3P2/1BR1n2q/1b5r w - - 0 1 illegal: Other
R3R3/2P3rp/R1K1p3/1Q3rPP/nrp3N1/1qbNP1N1/P1BB4/1qB2bk1 w - - 0 2 legal: proof: d4 a5 f4 b5 b4 g5 bxa5 c5 fxg5 Na6 c4 Bh6 cxb5 c4 Nf3 Nc5 dxc5 Bg7 Ng1 Bf8 Kf2 f5 Ke3 Kf7 Kd4 Kg6 Kd5 Kh5 h4 Kg4 c6 Kg3 g6 Kf2 g4 d6 g5 f4 a6 f3 a7 Qe8 b6 Bh6 g7 Rb8 a8R Qh5 b7 Bh3 Na3 Bg2 Qa4 Qg6 Qb5 Qb1 Nc2 Qb3 c7 Nf6+ Kc6 d5 g8N d4 Nb4 Nd7 Nf6 d3 h5 d2 Rb1 Rbg8 b8B d1Q Ba7+ Nb6 Rh3 e6 Ng4+ Ke1 Rb2 Na4 Bae3 f2+ Rf3 Bh3 Rff8 Bg7 Rfe8 Bc3 Rd2 Rg7 Rd6 Rhg8 Bg2 f1R Be4 Rf2 Bc2 Kf1 Bed2 Rf5 e3 Kg2 Nd3 Kf1 Re7 Rb8 Ne2 Kg2 Ng3 Kg1 Re8 Bf1 Rdd8 Rb7 Ra6 Qe1 Rda8 Rb8 Qd5 Rb4 Qb5 Qd1 Bb2 Qa1 Bbc1 Qab1
4nb2/1N3RPB/1K1BpRp1/3Nrq1k/r2PP1pB/R7/2PnQpnP/5N2 w - - 0 1 illegal: Other
2R1KB2/1QN2pR1/2r1p1p1/3P4/bpn2P2/PR1BpPkN/NP2Bb2/1n1q4 w - - 1 2 illegal: Other
Nrb1Q3/4b1N1/1B4B1/r2p1P2/2qPRqkP/PB3n1p/3R2nP/KR3rnN w - - 0 1 illegal: No proof kernel
1r2Rq2/2b1B1N1/bR2B1pn/K2PrN2/1b1p2Qq/2PP4/4PBP1/1kN1q1nR w - - 0 1 illegal: Other
BBq2NNQ/2pPp3/PbPBb1K1/5n2/2r2q1r/1qRN1P1k/2R1P1R1/1r5n w - - 0 1 illegal: No proof kernel
1K1R1b1k/1N4p1/pR3BB1/br3qB1/1P2b1Pn/P2N1nQb/2P1PN1R/1nr5 w - - 0 1 illegal: Other
KN3Q2/4rq2/1q1bB2R/Bpp5/1Pr2b1p/2R1n1bP/1kP1BP1P/3nNN1R w - - 0 3 illegal: No proof kernel
2Bk2rR/1bNP4/1KR1p2P/2n4p/BBNR1p2/P3qrp1/N1r1PPQ1/n5b1 w - - 0 1 illegal: No proof kernel
8/1Br2k1b/3P1N1p/1BN2P1r/2KP1P2/2b1p3/1NQ1rP2/1rrRBRQ1 w - - 0 1 legal: proof: e4 g5 h4 f5 exf5 d5 a4 a5 c4 b5 cxd5 g4 b4 Qd6 g3 Qf4 gxf4 Nc6 axb5 a4 Nc3 Nf6 Nb1 Na5 bxa5 Ne4 Nc3 Ra6 Nb1 Ng5 hxg5 Ra8 Ke2 c5 Kd3 e5 g6 e4+ Kc4 h6 d4 e3 b6 g3 d6 g2 a6 a3 a7 a2 b7 Rb8 a8B Be7 g7 Bd8 g8N Rh7 Qc2 Ba5 Bd2 Rc7 Be1 Bc3 Ne2 g1R Nf6+ Kf7 Na3 Rg5 Nc1 Rh5 Nb3 Bd7 Rb1 a1R Rd1 Be8 Bd3 Rbc8 b8Q Rb1 Qb7 Rb8 Qg2 Rbb7 Qg1 Rb6 Kd5 c4 Nc5 R6b2 Bb7 Ra2 Qc1 Re2 Qd2 Ba5 Qc2 c3 Bb5 Bb4 Nc4 Ba5 Qe4 c2 Nb2 c1R Qc2 Bc3 Kc4 Kf8 Qg5 Bg6 Rf1 Bh7 Qg1 Kf7
2R5/kPN1P1Q1/q3q1P1/6Br/3N2PP/1Kn1Q2r/N3qnRb/1B2Q1bn w - - 0 1 legal: proof: b4 b5 a4 g5 axb5 h5 c4 e5 d4 d6 dxe5 g4 c5 g3 c6 h4 b6 h3 b5 Rh7 Qc2 Rg7 Qh7 Bb7 cxb7 Rg6 fxg3 Rh6 g4 Rh5 g5 Rh4 Qd3 Rh8 Qxh3 Ne7 Qh7 Ng8 Kd2 Kd7 Kc2 a5 h4 c5 e4 c4 g4 d5 g6 a4 Rh3 a3 Rb3 a2 Nc3 d4 Bh3 d3+ Kb2 d2 Rb4 d1N+ Kc2 Qc8 Qh5 f5 Qh6 f4 Qg7+ Ne7 Nge2 f3 Bg5 f2 Bf1 Na6 b8Q Rh5 b7 Nc5 b6 Kc6 e6 Nf5 e5 Ng3 e7 Nh1 e8N Ra3 e6 Bd6 e7 Nd3 Rc1 a1Q Qa7 Qe6 b8Q Bh2 Na2 c3 Nd4+ Kc5 Be2 f1Q Qg3 N3f2 Nc7 Bg1 Bd3 Qfe2+ Bd2 Bh2 Rb2 Bg1 Qe3 Rb3 Qa4 Bh2 b7 Kb6 Qc6+ Ka7 Qce4 Bg1 Nb4 Qaa6 Na2 Rb4 Qee5 Rc4 Kb3 c2 Q5g3 Bh2 Qg1 Nc3 Qe1 Bg1 Qe4 Bh2 Bg5 Bg1 Qe3 Bh2 Rd1 c1B Bb1 Bg1 Rc2 Ba3 Rb2 Bd6 Rc1 Bdh2 Rcc2 Nb5 Nd5 Ra4 Rc8 Rc4 Nc7 Rc3+ Kb4 Rd3 Rc2 Nc3 Rb2 Qf5 Kb3 Qfe6+ Nd5 Qf3 Q3c1 Nfd1 Rg2 Qfe2 Qf4 Rh3 Qe3 Qf5 Nc7 Ndf2 Qe4 Qff6 Qe3 Qfe6+
N6Q/N1P1Bqb1/2nrr1RK/1Q4PP/1QP1B1Rq/r1r2b2/P3b3/1N5k w - - 0 1 legal: proof: d4 a5 g4 g5 b4 f5 bxa5 c5 dxc5 h5 gxh5 g4 f4 Nc6 e4 Ne5 exf5 Nf7 Kf2 Rh6 Ke1 Ng5 fxg5 Rh8 Ke2 Kf7 Ke3 d5 Kf4 e5+ Kg3 b5 Kh4 g3 c4 e4 h6 b4 Kh5 g2 h4 e3 a6 d4 f6 Ke6 h7 Kf5 a7 Kf4 c6 Kg3 f7 e2 c7 e1R Qb3+ d3 Nh3 g1R Qb2 b3 Bg2 d2 Bc6 d1B+ Bf3 Qe7 Nf4 Be2 Nd3 Bb7 Nb4 Bg7 f8Q Rgf1 Rg1+ Kh2 Rg4 Qe6 Be4 Rf3 Qb8 Kh1 Nc6 Ne7 Qa3 b2 Qb4 Rf8 h8Q Rf6 Be3 Rd1 Bc5 Rd6 Qb5 Qd7 Bb4 Rfe6 Ba3 Bf6 Kh6 Qe8 h5 Qf7 Rf4 Be5+ Rf6 Bd4 Rg6 Be5 Nc3+ b1Q Qbf8 Qf1 Nb1 Qf2 Bb4 Qh4 Ba3 Rb8 a8N Bf6 Na7 Nc6 Bb4 Rbd8 Qe7 Rd3 Qd6 Ra3 Qd2 Be5 Be7 Rdd6 Qdb4 Kh2 Nd2 Rfc3 Rg1 Bf6 Rg4 Bd4 Bf5 Kh1 Nb1 Bg7+ Kh7 Ne5 Bd3 Bbf3 Be4 Bf6+ Kh6 Nc6 Qe8 Bd4 Qh8 Bg7+
K2R1BR1/P1n2Q2/n1B1Q3/3PNq1P/r2Bq3/b1rP4/1Rn2nP1/1N1k3r w - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 h3 g5 Qc2 h5 Qd1 g4 hxg4 Qd6 Bc4 Qd7 Bf1 Qd8 Ba6 h4 Bf1 Be6 Qf3 Bf7 Qd1 Bh5 gxh5 Rh7 Ne2 Rh6 Ng1 Rh8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 a4 c5 f6 e5 a6 b5 f3 h3 a7 c4 f7 h2 a5 c3 a6 b4 Ra2 b3 Be2 c2 Bb5 b2 Qe2 Qf6 Bc6 Ba3 f8Q Ne7 Qf7 Kh4 Qe3 Kg3 Qh6 Kf2 Qhg6 Ke1 Qf5 Nd7 Q5e6 Rac8 a8R Kd1 a7 Rhf8 Rb8 Rc7 Rc8 Nb8 Rd8 Na6 f4 Nc8 f5 Nb6 d3 Na8 Bd2 c1Q Be3 Qc4+ Bd4 Qb4 Ke3 e4 Nf3+ Qe1+ Kf4 e3 Ne5 e2 Rf1 h1N Ke4 Qg5 f6 Qf5+ Ke3 Rg8 Rf3 Re8 Rg3 Nf2 Rg8 Rf8 Bb6 Rc8 Kd4 N8c7 Kc4 Re8 Bd4 Rf8 Nd2 b1R Rb2 Ra1 Nb1 Ra2 Qfd7 Ra1 f7 Re8 f8B Re7 Qf7 Re8 Nf3 Re4 Qde6 Rh4 Ne5 Rh1 Kb3 Ra2 Ka4 Ra1 Bb4 Ra2 Ka5 Ra1 Kb6 Ra2 Bbc5 Qb4+ Bb5 e1N Kb7 Nc2 Bf8 Qe1 Bd7 Qee4 Bc6 Ne8 Bb5 Rc3 Ba4 Nec7 Bc6 Bc5 Qh6 Ra4 Qhe6 Nb5 Ka8 Bb4 Qh7 Ba3 Qhf7 Nbc7+
2Bn1Nkq/4P2q/4PB1K/r5PQ/2Rp3R/Nr2bQ2/1q2PbP1/1nR4B w - - 0 1 illegal: Other
3r1RQ1/b2nK1b1/PP3B2/1pP1Q2P/qk2Nn2/NPq5/2BNQ3/1nb3R1 w - - 0 1 legal: proof: e4 f5 exf5 h5 c4 b5 g4 Ba6 gxh5 Bb7 c5 Bc8 d3 Bb7 Be2 Bd5 Kf1 Bc4 Ke1 a5 Kd2 Ra6 Bf1 Rb6 cxb6 c5 Ke1 Bb3 Bg5 c4 Be3 c3 Bd2 Bc4 dxc4 a4 Bc1 Qc8 Qxa4 Qc7 Qd1 Qd8 Ke2 d5 Kd3 Kd7 Kd4 Kd6 h4 g5 a4 e6 f4 c2 c5+ Kc6 Ke5 d4 h6 d3 h5 g4 f6 d2 b3 g3 f7 g2 h7 Nf6 a5 Bg7 f8Q Qe8 f5 Nd5+ f6 Nf4 Qe2 d1N a6 Nc3 Nf3 g1B Qg8 Bh2 Na3 Nb1 Bb2 c1B Nd2 Qd8 Rg1 Nd7+ Ke4 e5 Kf5 e4 f7 e3 f8N Qa8 Ne6 Kd5 Bf6 Qf8 Ng5+ Qf7 Qf2 e2 Nge4 e1Q Bd3 Qe3 Bc2 Qc3 Qe2 Bg3 Qb8 Rd8 h8Q Qe6+ Kg5 Qh3 Rf1 Qb4 Rg1 Qa4 Qc7 Bh2 Qf8 Qc3 Qg8+ Ne6+ Kg6 Bg3 Kf7 Nf4 Bh4 Kd4 Ke7 Nd3 Qf4 Bh2 Qg5 Bb8 Rf1 Ba7 Rf8 Nf4 Qf5 Be5 Bf6 Qg3 Nd6 Kc3 N6e4+ Kb4 Qfe6 Beb2 Qe5 Qc3 Qh2 Qc4 Qed5 Nc3 Qe2 Qd3 Bh4 Qc4 Nf3 Bd2 Rg1 Bdc1 Nfd2 Nb1 Qde6 Bg7 Bf6 Qd4 Qe5 Qc3
6b1/3rPk2/pP3Nr1/QRN2B1P/1Qq1q2P/bbN2P2/1R5R/3rnKB1 w - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 b5 g4 b4 gxh5 b3 axb3 Nd7 b4 Nb8 b5 Bd7 Ra5 Be6 Ra1 Bc8 Nh3 f5 Ra6 e5 fxe5 f4 Ra1 f3 Kf2 Nc6 Ng1 Nd4 Ke3 f2 Kd3 Nf3 exf3 Bh3 Ke2 Bc8 d4 g5 b4 c5 h4 a6 b6 g4 b5 c4 d6 c3 e6 g3 d5 g2 e7 c2 d7+ Kf7 d6 Bh6 b7 Nf6 b8R Bg5 Ra2 Re8 Nh3 g1R Nc3 Be3 Rb2 Ra7 Qd4 Ne4 Nf4 Rg6 Qb4 Bc5 Be3 c1Q Bh3 Qb1 Bd4 Qc7 d8Q Be6 d7 Bb3 Bf5 Rf8 Rh2 f1B+ Ke3 Bh3 Ke2 Nf2 Nfd5 Nd3 Nf6 Ne1 Bg1 Bg4 Rb7 Qe4+ Kf1 Qc8 Qda5 Rd8 Rc7 Bd6 Rc5 Qcc6 b6 Qc4+ Bd3 Be6 Rb5 Q4e4 Qc4 Ba3 Qcb4 Kg7 Bb1 Bg8 Bc2 Qcc4+ Bd3 Rda8 d8N Rd7 Ne6+ Kf7 Nc5 Rad8 Rbe2 Qee6 Bf5 Qce4 Ref2 Rd1 Rd2 Rd7 Rb2 Q6c4+
N4b2/1nbr2P1/k1r1P1PN/bpB1Qp1q/N3RP2/1B6/BP1q1R2/2Q2K2 w - - 0 1 legal: proof: h4 g5 hxg5 d5 c4 a5 cxd5 a4 Qxa4+ Nc6 Qa7 Nb8 d3 Bf5 Rh6 Bd7 Rh1 Bc8 Be3 e5 Qd4 e4 Qc5 Bf5 Bc1 e3 Qa7 Be4 dxe4 Nc6 Qd4 Ne5 Qa7 Nd3+ exd3 Bc5 Na3 Be7 Nb1 Bf8 a4 Kd7 g4 Kc8 f4 f5 g6 b5 e5 c5 d4 h5 e6 c4 a5 h4 g5 c3 g7 c2 a6 h3 d6 e2 g6 h2 d5 Qc7 d7+ Kd8 Be3 c1B Nd2 Qc2 Bc5 Nf6 Nc4 Qa4 Nb6 Rb8 Na8 Qc2 Ra4 Nh5 Re4 Rc8 Qb8 Rg8 a7 Nf6 Qe5 Bd6 Bg2 Ke7 d8N Be3 Nf7 Rgd8 Nh6 Rd7 Bf3 Kd8 Bh5 Be7 d6 Bd2+ Kf2 e1B+ Kf1 Ne8 Ne2 Rcc7 Nc3 Kc8 Na4 Kb7 Bd1 Bf8 Rg1 Be3 Rg2 Ba5 Rf2 Qd2 Bb3 Rc6 Ba2 Ka6 Bb3 Rf7 d7 Nd6 d8Q Nb7 Qdd5 Bc7 Qc4 Rd7 Qc1 Bd4 N8b6 Bc3 a8B Ba5 Ba2 Nd8 Bb3 Rcd6 Bad5 Rc6 Na8 Nb7 Rg2 Re7 Ba2 Rd7 Bdb3 h1Q+ Rg1 Qhh2 Rg2 Qh4 Rf2 Qh5
1B1R4/rNr2pP1/R3Pq1N/2Pb4/K1r5/2pQRB1P/1bP3Q1/2kn1qB1 w - - 0 1 illegal: No possible last move
n2b1rbB/R1PN4/q2r2Q1/b2NKB2/1Q2p2b/2P3PN/1Pkp1P1R/7R w - - 0 1 illegal: No proof kernel
k2b1Bb1/3PB1Q1/PbKN2rP/4p3/bNp2QP1/P3rR1p/B2Rn2N/8 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 h4 c4 Bd7 cxd5 Bc8 h3 g5 Ba6 Qd6 Bc4 Qg6 Bf1 Nc6 Qa4 Qh5 Qd1 Ne5 gxh5 g4 Nf3 g3 Ng1 Ng4 hxg4 Ra7 Rh3 Ra6 Rh1 Ra8 Ke2 Kd8 Kf3 b5 Ke4 e5 d4 c5 f4 Kc7 f6 Kb7 h6 b4 f7 g2 a6+ Kb8 f5 b3 f6 h3 a3 b2 d6 Bd7 Kd5 Ba4 d7 Bg7 f8Q+ Ka7 d8N Bb3+ Kc6 Kb8 d5 Ra7 f7 Bf6 d6 Rb7 d7 Ka8 Qd4 Kb8 Nd2 b1B Ne4 Rh7 Rh2 Ka8 Bg5 Rg7 Nf3 g1B Rd2 B1a2 Bc4 Rg6 Qg7 Rb4 f8B Ba4+ Kd6 Rb5 Rf1 Rb3 Nc6 Re3 Nb4 Ne7 Nh2 Nd5 Rf3 Nf4 Be6 Bd8 Bge7 Ne2 Qc4 Bc2 Kc6 Bab3 Nd6 Bf2 Qf4 c4 Bf5 Ba4+ Kd5 Be4+ Kc5 Bd5 Bb1 Be6 Ba2 Bh4 Nb5 Bb6+ Kc6 Bg5 Bc5 Bgd8 Bce7 Bd1 Nd6 Bg8 Rf1 Bc2 Rf3 Ba4#
5N1n/PRNQrnR1/2qbq3/1q2r3/bPQrRB1k/KP3P2/2B2P1n/1Q6 w - - 0 1 illegal: No proof kernel
1q3b1R/B3Rnr1/P1PkB1n1/K3N1b1/Q5nP/3r1N1P/Q3n1rP/1B1R1b2 w - - 0 1 illegal: No proof kernel
R1B3r1/5b2/PP1kq2N/2n1nR2/NP2bnP1/Q2B1PQK/1N1r1B1b/3n3r w - - 0 1 illegal: No proof kernel
N2rn3/N3brQR/Q4bR1/1P2n1n1/R2PP2B/K1kPqbqN/4BP2/b7 w - - 0 1 illegal: No proof kernel
q7/1nb1b3/r1RPPB1Q/1b3NQB/RP1K1N2/6nP/2bR1P2/rk2nQ1q w - - 0 1 illegal: No proof kernel
qb2Q3/2Rr4/P1q4k/2q1nRb1/3rP1P1/QQP1BBP1/3R2NN/Knbb4 w - - 0 1 illegal: No proof kernel
2N3B1/QqQ1n1r1/PN6/4RP1R/b1nN1B1P/1nRPP3/rq2K3/bk4rn w - - 0 1 illegal: No proof kernel
1k4N1/1N1P1R1P/n3QBq1/2Pr2n1/Q3b3/1BP1qqb1/r1B1P1r1/2N1R1qK w - - 0 1 illegal: No proof kernel
K2bB1R1/2bP4/1nPQ1n1Q/5kB1/bP2q3/B3nNPN/P3rr1R/b2n2Q1 w - - 0 1 illegal: No proof kernel
6bB/2Q2N1k/1Q2nq2/1B1K3P/RP1nb1r1/PP1NQ3/1rpR1NP1/n5bq w - - 0 1 illegal: No proof kernel
5B2/1b2b2R/q5k1/P3pr1q/1Q1PK3/2Rn1nP1/BQ1PBNQP/1b1Nrr2 w - - 0 1 illegal: No proof kernel
1q1B4/1Q3Rqk/3P1QN1/nrPP1pP1/1b2n1R1/rnr5/B1PQ2K1/3N2Nb w - - 0 1 illegal: No possible last move, all moves rejected
1Q1b1b2/4NP1R/Q1qB2p1/1P1BP1nP/3NK1Q1/B2r4/Pq1r2bq/2R2nk1 w - - 0 1 illegal: No proof kernel
NQ3n2/1rnB1PQ1/1P1R2q1/Kp2R1B1/B2q4/4rPP1/kP2Nb2/r1b1bR2 w - - 0 1 illegal: No extended proof kernel
N2b3q/1b2P1P1/RQRQNr2/BB1q4/1rn2B1P/PPk3K1/2bp4/3qN1n1 w - - 0 1 illegal: No proof kernel
4qR1Q/1n1Pn1BQ/r3rr2/k1b1P3/pRP1P3/P1bNB1K1/2q4q/3BN1R1 w - - 0 1 legal: proof: g4 d5 f4 c5 c4 h5 gxh5 e5 fxe5 Bd7 b3 Bb5 cxd5 c4 Ba3 c3 Bc1 Bc4 bxc4 Ke7 Nf3 Kd7 Ng1 Ke8 Kf2 Kd7 e4 Kc7 d4 Kb6 h4 g5 d6 a5 h6 f5 a3 c2 h5 f4 h7 f3 d7 g4 d5 a4 h6 g3+ Ke3 g2 Kf4 f2 d6 Qe8 d8R Nc6 d7 Bc5 Nf3 g1Q Nbd2 Na5 Ne1 Ra6 Nb3 Ne7 Be3 c1B Rb1 Bd2 Qh5 Bc3 Be2 f1R+ Bf3 Rg8 h8Q Rg6 h7 Re6 Rb8 Qf2 Rg1 Qh2+ Kg4 Rf2 Bd1 Rff6 Rc8 Nac6 Qg6 Nd8 Nc1+ Ka5 Rb4 b5 Ncd3 Nb7 Qh5 Qf7 Rf8 Qe8 Rb1 b4 Qh3 Qc2 Kg3 b3 Qg7 b2 h8B Qd2 Qhh7 Qe2 Qgg8 Q2h5 Bg7 Qh6 Qgh8 Qhh5 Ra1 b1Q Ra2 Qc1 Rb2 Qc2 Rb4 Qhh2+
1n2N1RQ/1Q1p2b1/1Nb2B2/1q4qB/P1RP2r1/PPq2nR1/2K1kP2/Nr5n w - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 a5 b3 f5 exf5 a4 bxa4 b4 Bb5 b3 cxb3 Ra6 Bf1 Ra8 h4 Kf7 d4 Kf6 Kd2 g5 h6 e5 h7 c5 a3 g4 h5 Kg5 f6 Kf4 f7 c4 h6 g3 Bg2 e4 Rh3 e3+ Kc2 c3 Bf3 g2 Rg3 Qg5 Nd2 e2 Bh5 e1Q Ngf3 Qee5 Ne1 Bg7 f8R+ Nf6 Rg8 g1N Nc4+ Ke4 Qd2 Bb7 Nb6 Bc6 Qd1 Qa5 Be3 Qa6 Rc1 Nf3 Bf4 Qab5 Be5 Nd5 Qd2 Ne7 Bf6 Nf5 Qe2+ Kf4 Qe8 Ra6 Qc8 Ke4 Qb7 Kf4 Rg1 Ng3 Rg2 Nh1 Rg3 Qbe5 Kb1 Ke4 Nc2 Kd3 Na1 Ke2 Kc2 Qa5 Rd8 Rg8 h8N Qab5 h7 Ra8 Nf7 Ra5 Kb1 c2+ Kb2 Re8 h8Q Re4 Rc8 Rg4 Nd6 Ra8 Rcg1 Ra5 Ne8 c1Q+ Ka2 Qc3 Kb1 Qa6 Rc1 Re5 Rd8 Qb5 Rc8 Qcb4 Rc4 Re3 Kc2 Rd3 Nd6 Rd1 Rg8 Rb1 Ne8 Qc3+
2K1q3/1P2bPBN/2PRP1p1/r2R1qbN/1PBRN1Q1/n2rQ2n/6b1/k3n3 w - - 0 1 illegal: No proof kernel
NB2rb1R/1Pb4Q/1r2Br2/2QPBp2/b1P2b2/Pqn1Q3/3NP2R/2k2n1K w - - 0 1 illegal: No proof kernel
r1b1BRb1/NPn5/2p5/1Pb4r/b1n3K1/1rPPN1P1/3BQRNQ/kq2Q3 w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 exd3 Bb7 d4 Ba6 d5 Bc8 Ke2 Ke7 Kf3 a5 b4 f5 g6 h5 g7 h4 e6 Kf6 d6 Ke5 e7 Kd4 e8Q f4 d7 h3 b6 a4 b7 h2 g3 a3 Bb5 a2 Qf1 Nh6 g8Q Ng4 Nh3 Na6 Nc3 Rh5 Qee2 Ne3 Qfe1 Nc4 Nd1 Bc5 Kg4 f3 Nf4 f2 Ne3 f1B Qh7 Qf8 Rb1 a1R Rb2 Ra3 Nfg2 Rb3 Rg1 h1B d3 Qf6 Bd2 Qb6 Nf4 Be4 Nfg2 Bd5 Bc6 Bg8 b5 Qa5 Qh6 Qa1 Rh1 Qb1 Ra2 Rd5 Qh2 Rf5 d8N Rd5+ Bd7 Rh5 Nh4 Bg2 Rf1 B2d5 Rf8 Bdf7 Nhg2 Bd5 Nf7 c6 Nd6 Bf3+ Kf4 Nc7 Be8 Bce6 Nc8 Bf5 Q2f1 Bd1 Na7 Bc8 Qee2 Rf5+ Kg4 Rd5+ Qf5 Re5 Qe6 Rh5 Bc1 Kc3 Rb2 Kb4 c3+ Ka3 Bd2 Rh8 Rc2 Rh5 Rc1 Bc2 Rcf1 Ka2 R1f2 Ka1 Qe1 Rb4 Qe2 Ba4 Qe1 Rf5 Qe4 Rb2 Qf3 Rb3 Qfe2 Rh5+
kn2n3/4b1r1/3Q2r1/1N1PrPBP/KQ1PB3/3R1pq1/b1q1PB1N/3rR1Q1 w - - 0 1 illegal: No proof kernel
5RQ1/nKQRqb2/3B3R/PkP5/3Bn1P1/rP2r1pP/q1BrN2r/4b1N1 w - - 0 1 illegal: No proof kernel
1k1r2BR/1b3P1n/Rb2p1q1/2B2r2/2K3nP/P1bq1P1Q/1N1bNRQP/1N6 w - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 h5 b4 h4 bxa5 h3 gxh3 Qd7 h4 Qd8 Ke2 Kd7 Kd3 b5 f6 c5 a6 Kc7 f7 g5 a7 b4 Qg4 b3 Ne2 b2 Kc4 Nf6 d4 Nbd7 Be3 Bg7 Qg2 Bb7 d6+ Kc8 d5 g4 f3 Nf8 d7+ Kc7 Rg1 g3 a3 N8h7 Ra2 Qg8 d8R Ng4 Rf8 Rc8 a8N+ Kb8 d6 Bc3 d7 Qg6 Nb6 Rd8 Na4 Rg8 Qh3 g2 Re8 Rg7 Rh8 e6 Rh1 Rc8 d8Q g1B Qg5 Rd8 Bd4 Be3 Rg1 Rgg8 Rg2 Rd5 Rf2 Rf5 Ra1 Rd8 Ra2 Nh6 Qgg2 Ng4 Nc1 Bed2 Bd3 Be3 Ne2 Bed2 Kb5 c4+ Bc5 Ba5 Ra1 c3 Kc4 c2 Nbc3 c1B Ne4 b1Q Bb6 Bb2 Bc5 Qg7 Ne4c3 Rh5 Bc2 Nhf6 Bh7 Qgg6 Bg8 Qbc2 Rb1 Ba1 Rb6 Rf5 Ra6 Nh7 Bb4 Bb6 Bc5 Qb2 Nb1 Qd4+ Kb5 Qd6 Kc4 Bac3 Nb2 Qd3+
b2N4/2RQPQbB/qq2r3/kr2PQBR/2p1PK1n/6P1/bNP2B2/1n5b w - - 0 1 legal: proof: h4 e5 d4 b5 e4 g5 hxg5 b4 f4 b3 f5 Nh6 dxe5 Ng8 axb3 Bc5 b4 Qe7 b5 Qe6 fxe6 Bf8 Ke2 Kd8 Kf3 d5 b4 f5 b6 h5 b7 a5 g3 c5 b5 Kc7 g6 Kb6 g7 f4 e7 a4 Bh3 h4 Bd2 d4 Be3 d3 Qe2 a3 Qh2 d2 Qf2 d1Q+ Ne2 a2 Be6 h3 Qe1 h2 Bf7 Nc6 b8Q+ Bb7 Na3 Qd6 Be6 Ra6 Bf5 Nh6 g8Q Na7 Qf2 Bg7 Nd4 Ka5 b6 Ba8 b7 Nb5 Qc7+ Qb6 b8B Nc3 Bh7 Nf5 Qd7 Nb1 Ne6 Nh4+ Kg4 f3 Qf7 Rg8 Ba7 Rb8 Bg5 Rb7 Qf1 f2 Kf4 Rb8 Qh3 f1B Nd8 Bc4 Qhf5 Bcd5 Rg1 h1B Nc4+ Kb4 Nb2 Ka5 Rd1 Bb3 Rd6 c4 Rh6 Qd4 Q7g6 Rb5 Qgf7 Re6 Rh5 Qd6 Bf2 Qb6 Qc6 Na3 Rd1 a1Q Rd7 Nb1 Rc7 Qa3 Qd6 Ba2 Qd7 Qad6 Nd3 Qa6 Nb2 Qdb6
b2N1kN1/RKnPp3/3PBb1r/1Q1P1b2/3P2PB/5nbq/1rqR4/1Q2B1N1 w - - 0 1 illegal: No possible last move
rnR1Bb1r/pbrr1PNQ/P1Pq1R2/1PB3k1/1Q1n3N/3q2PB/6R1/2K5 w - - 0 1 legal: proof: e4 b5 h4 c5 c4 g5 cxb5 f5 exf5 c4 hxg5 c3 dxc3 Na6 c4 Nb8 c5 Qc7 Nc3 Qb6 Nb1 Qd8 Kd2 Kf7 a4 h5 b4 e5 f4 d5 g3 h4 f6 Kg6 b6 h3 b5 e4 c6 h2 f5+ Kh7 a5 d4 g6+ Kh6 f7 d3 g7 Qd4 f6 Bc5 f8Q Be7 a6 Qd8 b7 Bc5 Nh3 Qc7 Ba3 e3+ Kc1 e2 Ng5 e1Q Ra2 Bb6 Bh3 Qf2 Nd2 Qd7 Qb4 Qc7 Ndf3 Qd6 Nh4 Bc5 Qc2 Qf5 Rf1 h1R Ne6 Ne7 g8B Rh7 Ng7 Kg5 Bf7 d2+ Kb1 Qfd5 Be8 d1R+ Kb2 Rd3 Kc1 Nf5 Qcb1 Qf3 Rg2 Nd4 Qc2 Rh8 Qcb1 Rd2 Qh7 Qd3 f7 Rh2 Rgg1 Rhe2 Rg2 Re7 Rf3 Rc7 Rf6 Nd7 b8R Bb7 Rc8 Nb8 Nh5 Qe5 Ng7 Bf8 Qc4 Qd6 Bc5 Re2 Qc3 Ree7 Qb4 Red7
2bnR2K/1n6/2qN3B/P1b1p2P/2NP1Q1Q/2P1R3/B1bBPq2/kb1N1rb1 w - - 0 1 illegal: No proof kernel
2N1BN1n/1k4bK/b4BQP/3P1Pn1/R3q2r/1q1qR1Bp/b2P2QP/1Rb5 w - - 0 1 legal: proof: e4 d5 b4 a5 c4 b5 cxd5 f5 exf5 h5 bxa5 h4 g3 Ra6 g4 Rh5 gxh5 Rh6 Qe2 Rh7 Qd1 Rh8 Ke2 Kd7 Kf3 e5 Kg4 g5 f4 c5 a4 Kc7 a6 h3 h6 c4 Kh5 c3 Kg6 e4 a5 c2 f6 e3 f7 g4 a7 b4 a8R b3 a6 g3 f5 e2 a7 e1Q Ra4 b2 Qg4 g2 Nc3 b1B Nb5+ Kb6 Nf3 g1Q Nfd4 Ba6 Bb2 c1B Ne6 Qe4 Bf6 Bg7 f8B Qg3 Bd6 Qgd3 Nf8 Ba2 Bg3 Nc6 Nd6 Qb8 Nc8+ Kb7 Qf3 Rh7 Qg2 Nd4 Be2 Rh8 Bh5 Ne6 Re1 Ng5 Re3 Qc7 Rb4+ Qb6 Rb1 Qbb3 Be7 Be5 Bf6 Ne7+ Kg7 Beb2 Be8 Ng6 Qg1 Nf7 Qg2 Rg8+ Kh7 Ngh8 Ra1 Be5 Rb8+ Kc7 a8Q Rg4 Rb1 Rf4 Rb4 Rh4 Ra4 Ng5+ Kg8 Qed4 Qc6+ Kb8 Qe6 Q4e4 Qf7 Ka8 Qg6 Kb7 Kg7 Ngf7 Kh7 Bc3 Bd8 Bg7 Bf6 Ng5+
bnR2B1r/2QPrpN1/kb3QB1/1R1P1P1N/1b6/b2nP1B1/4PQ2/1n1K1r2 w - - 0 1 illegal: No proof kernel
1BB1N3/1P1Q1rn1/Q4n2/R1n2N2/1PK1p1rP/3NP2q/2BRb1kP/1r3nr1 w - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 axb5 h4 g3 e4 gxh4 Bc5 Nc3 Bd4 Nb1 Be5 fxe5 Bh3 Ra4 Bd7 Ra1 Bc8 b4 Kd7 d4 g5 Kd2 f5 Kc3 c5 e6+ Kd6 e7 a5 e8B a4 b6 f4 b7 c4 Bd2 f3 Qe1 g4 Na3 g3 Bh3 f2 Nc2 f1N Ne3 a3 Ba4 g2 Bc2 a2 Nf3 g1R Ne5 Na6 Nd3 Nc7 Qc1 Qe7 Qa3 Qe6 Be1 Ne8 Bg3+ Qe5 Rd1 a1N Rd2 Nb3 Qa5 Bd7 Qa6+ Bc6 Bf5 Ngf6 Bc8 Rg8 Bf4 Ng7 Nf5+ Kc7 Bg3 Nc5 e3 Bb5 Bf4 Rf8 Bg3 Rf7 d6+ Kd8 d7 Qe6 d5 Rb8 Nh6 Ke7 d8N Qh3 Ne6 Ra8 Kd4 c3 Bb8 Rg4 Nc7 Bc4 Nb2 Be2 Nd3 Rg1 Kc4 Rg4 Qb6 Ra1 Qa6 Rd1 Ne8 Rb1 Bb3 c2 d6+ Kf8 d7 Ke7 Rg1 c1R+ Bc2 Rd1 Nd6 Ke6 Nhf5 Ng3 Rg2 Rg1 Rf2 Nf1 d8Q+ Nfd7 Qc7 Kf6 Rf4 Kg6 Rf3 Kh5 Ne8 Nf6 Qcc6 R4g2 Rf2 Kg4 Qd5 Rg3 Rg2 Kf3 Qd7 Rg6 Rg5 Rg4 Ng3 Kg2 Rd5 Kf3 Nf5 Rg1 Re5 Kg2 Rd5 Rg4 Re5 Nb3 Ra5 Nc5
1N3Kb1/NN3br1/3RPr1P/PB1r4/3bQPqP/2R1n3/2pB1p2/2Bk1nQ1 w - - 0 1 illegal: No proof kernel
R4R2/b3P3/1BpPQpb1/QBnn2n1/bP4K1/5rNr/k2PQ2P/N3N2q w - - 0 1 illegal: No proof kernel
1B4nb/2rBpqBK/7P/1R3RN1/1P1br2P/nP3R1Q/P2k1pb1/1Qn3N1 w - - 0 1 illegal: No proof kernel
B2qR1r1/Nb6/P1rb1Pn1/3k1qR1/6RP/B1Qrp1PP/1QN2n1p/5BK1 w - - 0 1 illegal: No possible last move
6kn/P1qNR2p/1r4BP/1PBN1P2/4bNP1/Qb4B1/bRn1Kp2/1q4Qr w - - 0 1 illegal: No proof kernel
1B4K1/1b3N1P/n1nPQN2/b1qp2RB/3P1r1k/PR1b4/1P5p/nqQQ3N w - - 0 1 illegal: No proof kernel
6bk/2q1RB2/N1pPr2q/2PnP1Q1/1PBR3Q/BN6/nPKp4/Rr3n1q w - - 0 1 illegal: No proof kernel
1B6/r1pb4/3P1k2/p1Q1R3/PqP2Pb1/1NbR1Pr1/1q1RQ2n/QN1KqB2 w - - 1 2 legal: proof: c4 f5 g4 h5 gxh5 d5 cxd5 f4 e3 Nd7 exf4 Nb6 b3 Nc4 bxc4 Bd7 Ba3 Bf5 Bc1 Bc8 a4 Kf7 d4 e5 h4 b5 d6 a5 h6 g5 d5 e4 d7 g4 d6 b4 f3 g3 h7 g2 h5 e3 h6 b3 Qc2 e2 Ra3 b2 Rh5 Ra7 Be3 Nf6 Re5 Bg7 Rd3 Rg8 h8R Ng4 h7 Qf6 d8Q Nh2 Qd7+ Kg6 Qc6 Bd7 Qc5 Kf7 Qd1 Bg4 Kd2 e1Q+ Kc2 Qf2+ Ne2 g1Q Qe1 Qgg2 Kd1 Qe7 Nc1 Kf6 Qd2 Qd7 Bd4 Qb5 Nb3 Qb4 Qe2 Bd7 N1d2 b1B Be3 Rf8 Rg8 Rf7 h8Q Bg4 Rge8 Rf8 Red5 Rg8 Ree5 Bd7 R3d4 Bd3 Nb1 B3f5 Rd2 Bg4 R5d3 Bge6 Qh5 Bh8 Qd4 Rg3 Qa1 Bg4 Bc5 Qd4 Bb6 Qgf2 Bc5 Qb2 Bd4 Ra6 Ba7 Bg7 Bb8 Ra7 Qg5+ Kf7 Re8 Bc3 Qc5 Kf6 Re5 Qe1+
rr6/1PK1n1qp/N2BPq2/2P4P/2qbn1kN/2QBp3/1P1QRR2/Q2B2n1 w - - 0 1 illegal: No proof kernel
1B3rB1/1Pq1N2N/4n1P1/bbP1pp1P/3k4/Q4RK1/RnQqnP2/Rb3N2 w - - 0 1 illegal: No proof kernel
Rn1N3n/7k/1Q2Bp1q/2P3Pn/N1p1R1b1/P1P1KPR1/Q3b2B/Nq2n2r w - - 0 2 legal: proof: h4 a5 d4 d5 b4 b5 bxa5 c5 e3 g5 hxg5 c4 Nf3 Ra6 Ng1 Rc6 Qf3 Rc5 Qd1 Bg7 dxc5 d4 Ne2 d3 Ng1 Bd4 exd4 Bd7 Qe2 Bf5 Qd1 Bc8 Kd2 Kf8 g4 Kg7 f3 h5 g6 e5 a6 h4 d5 f6 d6 h3 a7 b4 a8Q e4 d7 h2 Bh3 b3 Nc3 b2 Na4 b1B c3 Ba6 Ne2 Bc8 Re1 h1N Ke3 d2 Qb3 d1Q Nd4 Ne7 Nc2 Ng3 Qb6 Qf8 d8N Nh5 g5 Kg8 g7 Ng6 Be6+ Kh7 g8R Qh6 Re8 Bd7 Rg1 Qf1 Rg3 Bc8 Nb4 Bd3 Nc2 Be2 Bd2 Qb1 Be1 Ne5 Bf2 Bd7 Bg1 Ng6 Bh2 Bc8 Bf7 Bg4 Be6 Qb2 Re1 Qb1 Qaa5 Rg8 Na1 Nh8 a3 Rg7 Qab5 Rd7 Qb2 Rd1 Qa2 Rc1 Kd4 e3 Rg8 Bd3 Re2 Rh1 Re1 e2 Ke3 Bg6 Rd1 e1N Rd4 Bc2 Re4 Bd1 Nf7 Nc6 Ra8 Nb8 Nd8 Be2
1n4n1/PP3K1p/qB1Nr2P/Bb2pRQ1/BR2nQ2/2N1Nn1q/2P1P3/k5b1 w - - 1 2 legal: proof: d4 a5 g4 b5 a4 f5 gxf5 c5 dxc5 Nh6 axb5 a4 b4 Ra5 bxa5 Ng8 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 f4+ Ke4 h4 g5 b6 e5 h5 d6 a6 a3 h6 g4 a7 a2 b7 g3 c6 g2 c7 Qe8 f6 Nc6 f7 Nb8 f5 Be7 f8Q Qd7 f6 Na6 f7 Bh4 Nh3 g1N Be3 Nf6 Bb6 Bf2 Qc1 Nb8 Nf4 Qh3 Ng2 Bd7 c8N Ba4 Qd8 Re8 f8B Ng8 Qdg5 Re7 Qcd2 Bc6 Qb4 Re8 Ne3 d5+ Kc5+ d4 Kd6 Bd7 Qc4 Ba4 Qf7 d3 Be7 d2 Bg2+ Qf3 Ke6 d1N Qff6 Nc3 Kf7 Bd7 Bb4 Re6 Rh3 Bc6 Bh1 Qg2 Rf3 Qh3 Nc4 Bc5 N8d6+ Kd4 Rf2 Ba4 Bc6 Ne4 Be8 Bd7 Qf3 Bc6 Qfg3 Bd7 Rf5 Nf3 Q3f4 Ba4 Nbd2 Bc6 Rb1 a1Q Rb2 Qa3 Nb1 Qa6 B4a5 Bd7 Rb4 Bc6 Nba3 Kc3 Bd7 Bg1 Ne3 Bd5 Ba4 Bc4 Rf6 Bb5 Rf5 Kd2 Nb1+ Kc1 Bb3 Kb2 Ba4+ Ka2 Nc3+ Ka1
B1QN1K2/2pP1b2/3n2k1/1pq2q2/Q1PR1P1n/1PrR2q1/2R2q1P/B3rN1B w - - 0 2 illegal: No proof kernel
8/2bnPP2/1k1B3p/RqR1rNP1/4PpR1/1BpNP1BK/1r3b2/1n1bQQ2 w - - 0 1 illegal: No proof kernel
2r1n1N1/N1p3P1/1b3P1p/PQ2PB1R/1Nr1b3/nQ2q1nB/1P2R2p/1K2B1k1 w - - 0 1 illegal: Other
B6k/P2B2bn/1rN4P/R2p1K2/b1N3nR/Q1Qr2p1/3PPBPp/b5qQ w - - 0 1 illegal: Other
3N1krN/1n6/1P1q1qpP/QB2B1P1/p3bn2/6Kp/rPb1QPB1/2R1R1Q1 w - - 0 1 illegal: No proof kernel
K1kn1B2/R5Rr/1q2p3/2PP2Q1/P2RP2Q/p1rp2n1/PNN1q1rB/3b1B2 w - - 1 2 illegal: No proof kernel
2q1Rr2/NPnr2N1/5kP1/1KB1q1b1/1p4pr/2R2P1P/1B2npP1/RQ2Q2B w - - 0 1 illegal: Other
3q3B/1qr1BB1b/1Q1R1nQ1/n1R3P1/P1N2pk1/bPb5/RPpK1P1p/3N4 w - - 0 1 illegal: No proof kernel
BqR1r1N1/k5P1/4bBpp/3bR1qR/3P4/nPQ1N2P/1bK2Pnp/1N5Q w - - 0 1 illegal: Other
n1r1bn2/1b1k2P1/4RR1P/1nr3K1/BN1P1p1p/p3B3/bR1NBP1P/5Q1Q w - - 1 2 illegal: No proof kernel
1BbN1R2/rP1P3B/pbrpQ2Q/2nn1P2/4N1K1/2r3Rp/3PP3/3kB1Nb w - - 0 1 illegal: No proof kernel
3nNQ1R/1B1Qp1N1/P1n1b2p/2n1P3/P1qnP1pB/5QR1/3K2P1/Bkr3r1 w - - 0 2 legal: proof: c4 g5 f4 d5 cxd5 a5 h4 g4 e4 Bg7 b4 Bd4 bxa5 Be5 fxe5 Qd6 Rh3 Qf6 Rh1 Qg5 hxg5 Kd7 Ba6 Kd8 Bf1 Ke8 d4 Kd7 a4 f5 d6 Kc6 a6 b5 d7 b4 d8Q f4 g6 b3 g7 f3 d5+ Kc5 d6 Kb4 d7 c5 Qe8 f2+ Ke2 b2 d8B c4 Bb6 c3 Qed7 c2 Bg5 Kb3 Nh3 Nh6 g8Q+ Nf7 Qf8 Nc6 Bh4 Nfd8 Na3 b1N Nb5 Kb2 Nd6 Nc3+ Kd2 c1N Bb5 f1Q Ra3 Qc4 Nf4 Nd3 Bd4 Nc5 Nh5 Ra7 Ne8 Rc7 Rb3+ Ka2 Nhg7 Ne2 Ba1 Ned4 Qdf3 h6 Rh3 Rg8 Rd3 Kb1 Rg3 Rh8 Qd6 Be6 Qd7 Na7 Bc6 Rb7 Bd5 Nac6 Rc3 Rb3 Rc2 Re3 Rc3 Re1 Rd3 Rg1 Rb3+ Ka2 Rb8 Rg8 Rc8 Kb1 Rb8+ Nb4 Bb7 Nbc6 Nh5 Rg6 Nhg7 Rf6 Qa3 Rff1 Qaf3 Rd1+ Ke3 Ndb3 Q8f5 Ka2 Nd6 Nf7 Rh8 Rc1 Nde8 Nfd8 Qf8 Nbd4 Kd2 Kb1
2N2b1q/pR1n1R2/2npq2k/PP6/pB1RPK2/P2N1B2/rN1P2n1/Q3Q1q1 w - - 0 2 illegal: Other
N1n1R2K/1pqr4/4p1p1/Q3B3/rP2pP1R/2NR1B2/1P1bP1QP/1nk1B2b w - - 0 1 illegal: Other
k1rbK3/2pNPRPR/8/3n2P1/bp1Q1pB1/1PP1B1rN/2B1Q1p1/3N1q1b w - - 1 2 illegal: No proof kernel
R2nR1r1/2p5/q1Pk3n/B4pb1/1K3P1p/NBQP2pB/QP3NbP/2N1b3 w - - 0 3 legal: proof: g4 b5 e4 d5 exd5 a5 g5 f5 a3 b4 axb4 Ra7 bxa5 Rb7 a6 Rb3 Nh3 Rb6 Ng1 Rf6 gxf6 Qd7 Bh3 Qd6 Bf1 Qd8 f4 Kd7 c4 h5 d6 e5 d3 g5 Kd2 e4 Kc3 h4 a7 e3 a8B e2 f7 e1B+ Bd2 g4 c5 g3 Qa4+ Nc6 Na3 Nf6 Ne2 Rh5 Bh3 Ne8 Nc1 Be7 f8Q Rh7 Qg7 Bf2 Re1 Bd4+ Kb3 Rh8 Ba5 Be3 Qc3 Ke6 d7 Nd6 Bb7 Qe8 d8N+ Kd7 Ba6 Bg5 Nf7 Bf2 Bc4 Qe6 Nh6 Nf7 Ng4 Bb7 Re3 Qh6 Re8 Be1 Nf2 Rg8 Bd5 Qg6 Qac4 Ncd8 Kb4 Qc6 Qa2 Qa6 Bb3 Bg2 c6+ Kd6 Bb6 Rf8 Nc2 Bd5 Qb1 Qc8 Ra8 Nh6 Na3 Rg8 Ba5 Bg2 Qa2 Qa6
K7/2P1p1Bb/pqpQ1bRn/1R1P3N/k3P2Q/p2n3B/1RNPPqr1/5Q2 w - - 0 1 illegal: Other
RB1r3Q/3pq2Q/P1qR1P1p/B3PNpb/n1B3PK/3Pq1Q1/2p4b/4N2k w - - 0 1 illegal: No possible last move, all moves rejected
N1R1n3/3Pb1p1/P2bb1b1/6P1/pB5N/P4pq1/PkBQN1pQ/2RKQ2r w - - 0 1 illegal: Other
4b2k/2b1np2/1qpQ3P/B1PNpN2/2R1BPP1/1p1p3K/b1RQP1B1/2r4N w - - 2 3 legal: proof: b4 a5 bxa5 g5 d4 b5 g4 h5 d5 c6 d6 Qb6 Bb2 Ra7 Bc1 Rc7 dxc7 Na6 Qd3 Qd4 Qd2 Nc5 Qd1 Ne6 Ba3 Ng7 Bc1 h4 h3 Nh5 gxh5 g4 Bd2 g3 Bc1 Qg4 hxg4 Bb7 Bg5 Ba6 Bc1 Bc8 c4 e5 a4 d5 f4 g2 Kf2 h3 Kg3 b4 a6 h2 h6 b3 a5 d4 c5 Bf5 c8B Be4 a7 Bg6 a8Q Rh7 a6 Be4 a7 Bf3 Qd2 Bd5 Na3 Rh8 Qb8 Be6 a8N Bd7 Kh3 Bd6 Nc4 Kf8 Nc7 Be8 Nd5 Bc7 Nce3 Ne7 Ra2 Kg8 Rc2 Kh7 Be6 Rf8 Bc8 Kh8 Bf5 Rg8 Ba3 Rg6 Bd3 Rd6 Bb4 Rd7 Be4 Rd8 Nf3 g1Q Bg2 Qa1 Rhc1 h1B Ne1 Qa7 Nf5 Qb6 Nd3 Rd7 Nf2 Rd8 Qa7 Ra8 Qb8 Ra1 Rc4 Rb1 R1c2 Rc1 Bf1 Bf3 Ba5 Bh1 Bd3 Be4 Bg2 Bd8 Qd6 Bc7 Ng7 Bh7 Nh1 Bg6 Bde4 Bf5 Bef3 Bd3 Nf5 Be4 Rb2 Bb1 Rbc2 d3 Be4 Ba2
1NB5/Qr4bN/b1N4p/Rn2pr2/P1kB1Q2/2bnPr1P/KR1PP1q1/n4Q2 w - - 0 1 illegal: No proof kernel
n4q2/1rPB2Nk/3r1b2/RpQ1Pq2/1PR1pP1N/3Q3b/2b1PB2/K2RB1rn w - - 0 1 illegal: No proof kernel
3b1RQn/k1P5/q1K2p1N/r2nQ3/1PB1N1pQ/1bb1qPB1/1P4PB/3nRr2 w - - 0 1 illegal: No proof kernel
qB3bq1/nq4NR/1kPp1Pr1/2p4Q/1nRb1Rb1/QKPP1N1B/P3B3/r7 w - - 0 1 illegal: No proof kernel
nrR2R2/qB6/n2pqpK1/3bb1r1/2QRQq2/5PBk/bP1PNP1P/1B5N w - - 0 1 illegal: Other
N2q2B1/np1RrP2/1QpN3K/2rnBr1B/2Q5/1PPbR1n1/2q3PP/1Q2b1k1 w - - 0 1 illegal: No proof kernel
1Q6/P1P1NBR1/k3PrQp/pn3N1R/8/q1bn1nrb/P3Q2P/B1KR2bq w - - 0 1 illegal: No proof kernel
N3n3/1N1Pb3/1N1r1R1R/3rB1pp/Q1n1PQP1/Rq1bnP1P/B2k3K/n3r3 w - - 0 1 illegal: No proof kernel
3b2k1/1RnN1p2/BKN1QPPr/1bR1Nn1P/3prP2/3Qb3/nB1P1Q2/4qn2 w - - 0 1 illegal: No proof kernel
RK5B/1p5n/bP1Q1RQn/3PNnNp/1N1P4/4rB1P/1PqQ3b/bnr3k1 w - - 0 1 illegal: No proof kernel
rn2R1Q1/pK1N1rpN/BRnr2P1/Pb2P3/4r3/k2N3B/2q1P1bP/b3B2Q w - - 0 1 illegal: No proof kernel
r3R1NK/b2rpP2/rP3R2/np3n2/rk2b2R/1P1PPq2/Q1BN3B/1bQQ4 w - - 0 1 illegal: No proof kernel
5N1q/1p1QnbB1/nPP5/P1b2qnR/P1Bpr2Q/k3r1Q1/n1RP4/R4N1K w - - 0 1 illegal: Other
Nb2q1b1/2pb4/N5BQ/Pk1n1K1R/2RP1pnN/1PpQrP2/2P3n1/B1r1R3 w - - 0 1 illegal: Other
Q3q1bB/3RB1QK/2RR2P1/1pbP3p/N2n2nn/pPr2P2/P7/N3kbrB w - - 0 1 illegal: No proof kernel
n1Bb3q/7n/pQ2p2n/NQb2BPP/1P2RR1B/P2bP2r/p1k2Kr1/1R4N1 w - - 0 1 illegal: Other
4rRB1/1Q1p1Np1/1P1R1b1n/pPnqB1Q1/2bP1QNP/2k1n3/PRb4K/2r5 w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 gxh5 Rh7 c4 Rh6 cxb5 Rh8 Kf2 Ke7 Kg3 Ke6 b4 Kd5 e4+ Kd4 h4 a5 e6 c5 e7 f5 e8R f4+ Kh2 f3 b6 c4 b5 c3 h6 f2 e5 c2 e6 Rh7 e7 Ra7 Bc4 f1B Bb2+ Ke4 Nc3+ Kd4 Qf3 c1N Nh3 Bb7 Ng5 Ba6 Nf7 Nd3 Rd1 Ne1 Qb7 Rh8 h7 Ng2 d3 Nh6 Nd5+ Kc5 Nf6 Kb4 Rb1 Ne3 Ng4 Qc8 Rd8 Qc5 e8Q Be7 Qf8 Bf6 Rd1 Rg8 h8Q Be2 Qe7 Re8 Qhf8 Ra8 Rb1 Bd1 Bb3 Bc2 Be5 Ra7 d4 Kc3 Rhf1 Qd5 Rb2 Ra8 Bc4 Ra7 Rc8 Ra8 Rc6 Rc8 Qc7 Bb7 Rd6 Na6 Rf4 Bc6 Qb7 Nc5 Rf5 Re8 Rf2 Rac8 Qd8 Bg5 Qf6 Rc7 Q8e7 Rcc8 Qf4 Rc7 Qef6 Rcc8 Q6f5 Bf6 Q5g5 Qe6 Rb4 Bb3 Re2 Ne4 Rf2 Be7 Nd8 Bd5 Be2 Kd2 Qf7 Rc1 Bc4+ Kc3 Qf8 Ba4 Rbb2 Nc5 Qf3 Bb3 Qg3 Be4 Rf8 Bf6 Q3f4 Bec2 Bd5 Qg8 Bf7 Bc4 Be6 Qh7 Bg8 Qe4 Nf7 Qd5
3Q2R1/2p2bPp/1Qr3R1/P1PpP1n1/3P2rN/q1bQ4/B2N2qB/n1BKb2k w - - 0 1 illegal: No proof kernel
3k4/QK1pqQ1q/n3n1b1/R1bRP3/3Ppr2/R1nPP1p1/B2NPB1N/r5B1 w - - 0 1 illegal: Other
2N3r1/2pnK2Q/5RQ1/NBPNBPp1/Rnrb3P/q1R3PP/p5b1/1b3qk1 w - - 0 1 illegal: No proof kernel
6bk/RrRN4/p1Q1p1nB/P1bBq1pP/b2N1B2/1P1QP3/1nP3q1/1KQ3r1 w - - 0 1 illegal: No proof kernel
2B2Q1K/2B2P2/1Q2bbpN/n3rp2/pQ2q1P1/B3R1N1/1PPnrP2/q1k2n1R w - - 0 1 illegal: No proof kernel
1b2R2q/Q1Q1N1qp/2p1nnP1/brP5/PR1Pkpr1/1K2NR2/b6P/B2Q1B2 w - - 0 1 legal: proof: e4 d5 exd5 a5 f4 g5 fxg5 Qd6 b4 Qd7 bxa5 Qd8 d4 Kd7 Kd2 Kd6 Kc3 b5 a4 e5 g4 f5 g6 c6 g5 b4+ Kb3 e4 c4 e3 a6 e2 g7 e1B g6 f4 a7 Na6 Na3 Nf6 g8R Nc7 Ne2 Bf5 Ng3 Bb1 Bb2 Ne6 Nc2 Rb8 a8Q Rb5 Ra2 Qe7 Rg1 Qg7 Ne3 Be7 Re8 Rf8 Ba1 Qh8 Kb2 b3 Ra3 Ba5 Qa7 Bed8 Rg2 Bdc7 Rf2 Rf7 Rf3 Bb8 Ra2 Rfb7 Ka3 b2 Ngf5+ Kc7 Ne7 Kd6 Qd3 Rc5 Qd1 Rbb5 Qb6 Bd3 Qa7 b1Q Rb2 Bf5 Rb4 Qe4 Qd2 Qe5 Kb3 Bb1 Qc1 Ng8 Qc2 Qeg7 Qd1 Nf6 Qa6 Kd7 d6 Rg5 c5 Rg4 Qa7+ Nc7 Nc2 Ke6 d7 Qgf8 d8Q Qfg7 Nc8+ Kf5 Ne7+ Ke4 Ne3 Ne6 Qdc7 Ba2+
n3n1nR/3Q1N1P/3P1b2/1p5q/kP1pP1RB/Nnrp3K/B1RP4/2rb2NQ w - - 0 1 illegal: Other
1rr1K3/2p1R1p1/bNPQ1pnN/3NP3/np3BBP/1b4Pq/3Q1PBk/4R2r w - - 2 3 illegal: No possible last move
1K2Qq1N/p1B2B2/1bRr1bP1/kr5p/P1P1n1p1/4Np1P/n1rR1P2/2Q2NB1 w - - 1 3 illegal: No proof kernel
1QrknK2/nP3pb1/1q1B1p2/1bB1PPNR/3q2BP/Q5p1/1p4P1/R2Q2Nr w - - 0 1 illegal: Other
1k2rr1Q/p6q/1pK3pb/1n1B1q1B/PQ4P1/PPB2Nn1/1R1PR1p1/1bNQ4 w - - 1 3 illegal: Other
B1k4B/PpNb3n/1p3p1K/4qPR1/pp1RR2P/PP6/1Bn2N2/r2QrQr1 w - - 0 1 illegal: Other
4BN1B/6Q1/P1NPb1B1/1P5b/BpRp1k2/p3n1R1/P1P3b1/q2Bb1K1 w - - 0 1 legal: proof: e4 h5 f4 b5 b4 e5 fxe5 d5 h4 g5 hxg5 a5 Ke2 c5 Kf2 c4 Ke1 c3 dxc3 d4 Be3 a4 Bc1 Ra5 bxa5 Na6 c4 b4 Qg4 Nc7 Qd1 Nd5 exd5 Rh6 Bb2 Rb6 Bc1 Rb5 cxb5 Qc7 Bc4 Qd7 Bf1 Qd8 Kf2 Kd7 g4 f5 a6 a3 e6+ Kd6 g6 Ke5 g7 h4 g5 f4 g6 f3 e7 h3 e8B h2 d6 Qf6 Nd2 Kf5 Ne2 Ke5 Nf4 Qd8 Nc4+ Kf5 Ne6 Ne7 g8B Qd7 g7 Qc7 Bh6 Qc5 Ne5 Qb6 Bh7+ Ng6 g8B Be7 Bg7 Ke4 Nc6 Qb7 Nf8 Kf4 Bb3 Be6 Bh8 Ne5 Be2 Nc4 Bhg6 Ne3 Ba4 Bf6 Rf1 h1B Kg1 Bh4 Rb1 Qe7 Rb3 Be1 Rc3 Bg2 Rc4 Qg5 Qd2 Qc5 Bd1 f2+ Kh2 Qd5 Rg1 f1B Qc3 Bf3 Rg3 Bh5 Kg1 Bfh3 Qd2 Qf5 Qh2 Bg2 Qh4+ Qg4 Qe7 Qe2 Qb7 Qd3 Qe7 Qc3 Qg7 Qa1
B1n2Q2/N1p3N1/1rP3pp/Rb1P2r1/n1P3nr/N1PRKP1N/8/2N2kB1 w - - 0 1 illegal: No proof kernel
3K1q1N/1p2P1Bn/4pbNq/B2PPbBk/2P5/p1Q2Rp1/1bP3B1/2R3B1 w - - 0 1 illegal: Other
N2qrnN1/1P6/NP1Pn2b/3b2b1/PP2Nb2/krN1Q2R/3RK3/3B1bBq w - - 0 1 illegal: No proof kernel
3r1K2/RPn1P3/p3r2N/1rQ4P/b1b3RN/P2b1RP1/3R1B1q/n1kBnR2 w - - 0 1 legal: proof: d4 b5 c4 g5 cxb5 e5 dxe5 h5 Qc2 h4 Qd1 g4 g3 Be7 gxh4 g3 h5 g2 Qd6 Bh4 Qd1 Bg3 fxg3 Kf8 Kd2 Ke7 Ke1 Ke8 Kd2 c5 Ke3 Ke7 Kf4 Ke6 b4 d5 e4 f5 h4 c4 b6 d4 b7 c3 h6 c2 h5 d3 h7 d2 b5 Bd7 b6 Nc6 b8R Qe7 b7 Be8 Nf3 g1N Na3 Qc7 Kg5 f4 Nh4 f3 Rd8 f2 Nb5 Na5 Nd6 Ba4 Kg6 Ne7+ Kg7 Nf3 Nf7 Re8 h8R Ne1 Nh6 Nb3 Be2 f1B Rf8 Nd5+ Kg8 Re7 Rf3 a6 a3 Qd6 Kf8 Nc7 Rb1 Na1 Rb4 Rc8 Bb2 c1R Bd4 Qc5 Qc2 d1B Bf2 Rb1 Qc1 Qd6 Qc5 Bdc2 Bd1 Qd2 Rd4 Bc4 Rf1 Ne8 R8d5 Rb5 Rd7 Qe2 Rd2 B2d3 Rc7 Rh7 Rg7 Rd8 Rg4 Rc7 N4f5 Rc6 Nh4 Kd7 e6+ Kc7 Bg1 Qh2 e7 Kd7 e5 Nc7+ e8R Re6 Qa7 Kc6 Bf2 Kd5 Qb6 Rc6 e6 Rcd6 e7 Re6 Rg8 Ke4 Qa5 Rd4 Ra8 Rdd6 Ra7 Rdd5 Re3+ Kd4 Qb6+ Kc3 Qc5 Rd7 Rf3 Rdd6 Bc2 Kb2 Rg4 Kc1 Bd1 Rd8+
K1r1Q2R/n5r1/kBRR4/n1R4n/PqrPN3/P1R1p3/1N1PPq2/1Bq3b1 w - - 0 1 legal: proof: g4 d5 h4 a5 f4 g5 fxg5 d4 c3 a4 cxd4 a3 bxa3 Nc6 a4 Bf5 h5 Bg6 hxg6 Nb8 Kf2 Kd7 Ke3 Kc6 Ke4 Kb6 a3 h5 g7 e5 g6 c5 g5 f5+ Kf3 f4 Ke4 h4 Qe1 h3 Qd1 h2 Bh3 f3 Qe1 c4 Qf2 c3 Bf5 c2 Nc3 Ne7 g8R Nbc6 g7 Na5 g6 Qd6 Bb2 c1Q Nd1 Ka6 Bc3 b5 Nh3 b4 Nb2 b3 Qe3 f2 Ng5 Rh7 Rh8 f1Q g8R Nc8 g7 Qb4 Kd5 Na7 Bb1 Rc8 Ne4 Bd6 Rd8 Rc4 g8R Rhc7 Rg6 Qf2 Rhg1 h1N R1g5 Ng3 Rc8 Rg7 Rc6+ Qb6 Bb4 Nh5 Bc5 Bb8 Rgd6 Rc7 Nf6 e4 Ra2 Kb7 Rg3 Qb4 Bb6 Ka6 Rc5 Rg7 Rg6 Bc7 Rdc6 Bh2 Ra1 Bg1 Kd6 Rg8 Kc7 Rg7+ Kb8 Rc7 Ka8 Rg7 Qd3 e3 Qe4 Rc7 Qe8 Rg7 Ne4 Rc7 Nd1 b2 Rgd6 Rg7 Bc2 b1R Nb2 Qce1 Ra2 Rc1 Bb1 R1c2 Nd1 Rc1 Rc2 Qef1 Rc3 Q1e1 Rb5 Rc2 Nb2 Qc1 Rc8 Rcc7 Rcc6 Rc3 Rbc5 Rc4 Rb8 Rc8 Bc7+ Qb6 Bd8 Rb4 Rc3 Rc4 Rc5 Rc6 Rc8 Qb3 Bb6 Qb4 Rb8 Rc8 Rdc6 Rcc7 Rd8 Rb7 Rd7 Rc7 Rdd6 Rc8+
2R1b3/RnNqP3/3b4/1rR1p1B1/R3q3/1q1bQ1qB/PPP1P2k/1NR1nK2 w - - 0 1 illegal: No proof kernel
2rK4/rr1N1r1N/BP3B2/n3P1PB/1RBn1p1R/3bqPk1/BPr2r2/3Q4 w - - 0 1 illegal: No proof kernel
Qb1B4/1nnP1b1N/P6B/1K1p2Rb/rPrp3q/1PP1k2B/3n4/2BR1B1N w - - 0 1 illegal: Other
6Br/k1p4N/1p1r4/Pr1P1B1P/n1Nq1n2/P1P1Kb2/4QBB1/n2Rb1RB w - - 0 1 illegal: No proof kernel
n1b1R2Q/BPBBbPqP/1PN4k/nK5B/1BR3r1/3Pn1p1/2pr3N/7q w - - 0 1 illegal: No proof kernel
1B5Q/1NR1P1r1/k1P2ppn/6NR/B3P2b/r1n1Nrb1/rP1N1PK1/2N2q2 w - - 0 1 illegal: No proof kernel
1K2rnQ1/3B2P1/5qBB/1N3qpb/p1BP1rB1/1PnRn1PR/P7/2N3kq w - - 0 2 illegal: No proof kernel
3R1BQN/pRN2Bn1/3rP3/PK1P2k1/1pqR1bpr/6P1/Pr3p1q/R4R2 w - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 g5 fxe5 Na6 b3 Nc5 h3 Bd7 h4 Ba4 bxa4 g4 Nf3 Ne6 Ng1 Ng5 hxg5 Bh6 Nc3 Bg7 Nb1 Bf8 e4 Ke7 Ke2 f5 Kd3 c5 Kc4 h5 d4 f4 d6+ Ke6 d7 f3 g6 h4 a5 f2 g7 b6 g3 h3 Bh6 h2 Nf3 Kf7 e6+ Kg6 e5 Be7 Kb5 c4 Nc3 Qc7 d8R Qc8 Nd5 c3 Nh4+ Kh5 Qb3 c2 Bc4 c1R Rf1 h1Q Ng6 Rb8 Nc7 Nf6 g8R Rd1 Rg7 Bd6 e7 Ne8 Bf7 Qh2 Rh7 Ng7 e8R Rb7 Re7 Rd3 Red7 Rd2 e6 Bf4 Qa3 Rd3 Qf8 Rd2 Qg8 Rb2+ Kc6 b5 Rd6 b4 Rd5+ Nf5 Bf8+ Kg5 Rg7 Rh4 Nh8+ Kf6 Kc5 Rb6 Rh7 Rd6 Kb5 Qa8 Re5 Qf3 d5 Ng7 Re4 Kg5 Rd4 Qe4 Bg6 Nf5 Rhd7 Ng7 Bf7 Bd2 Rb8 Bf4 Rb7 Qc2 Rd8 Qc4+
R4RN1/b1Rb2nr/1K3pp1/BB3RPP/1bP1n2q/P1Q4N/3RrPr1/5kq1 w - - 0 1 illegal: No proof kernel
B4k2/NBn5/nRqpp1rp/5q1B/1P1PP2P/3B4/1qP1K2b/B1bQr1RN w - - 0 3 legal: proof: f4 g5 fxg5 c5 Na3 b5 Nb1 Bb7 b3 Bd5 b4 Bb3 bxc5 b4 Nh3 Bd5 Ng1 b3 Na3 b2 Nb1 Bb3 axb3 Qa5 Nh3 Qc7 Ng1 Qd8 h4 f5 g4 a5 e4 h6 d4 f4 b4 d6 c6 f3 c7 f2+ Ke2 a4 c8B a3 g6 a2 g5 Qd7 g7 Na6 g6 Nf6 g8B Bg7 Nh3 Nd5 Na3 b1Q Bb2 Ndc7 Rg1 Qc6 Bb7 Kf8 Bf7 Be5 Nb5 Rg8 Na7 Bh2 Bd5 e6 g7+ Kf7 Bc3 Raf8 Ba8 Qb2 Bb7 Rh8 g8B+ Ke7 Bh7 Rhg8 Bg6 Rf7 Ba8 Kf8 Bh5 Rg6 Bb7 Rf5 Ba8 Qa4 Bdb7 Qc6 Kd2 Rf4 Bd3 f1Q Nf2 Rf7 Nh1 Qf5 Ke2 Rff6 Rb1 a1B Rc1 Qa5 Rg5 Rf1 Rb1 Qf5 Rc1 Qf4 Rb5 Qf5 Rb6 Qa3 Nf2 Bb2 Nh1 Qb3 Rb1 Bc1 Ba1 Qa3 Rb3 Qb2 Rc3 Qf7 Rc5 Qf6 Rg5 Qf5 Rg1 Re1+
1n4kb/R6b/R1prK1b1/qBP1p2P/N6B/2N1qPr1/1p2PNPn/1N3QN1 w - - 0 1 illegal: Other
RN5b/2k1b3/p2p1q2/Kr2q1BP/1p2n3/PP2r1B1/n1BPN1BP/1Rq1B1Q1 w - - 0 3 illegal: No possible last move
1R3B2/N6R/5P1b/P5r1/b2nPrk1/1brBB1Nr/QRq3PP/4nRK1 w - - 0 1 illegal: No proof kernel
2q4K/7n/2BB1b2/1NPr2rN/rNQP4/P2n1kPP/rB3Nrn/4RR2 w - - 0 1 legal: proof: d4 g5 b4 a5 bxa5 c5 dxc5 g4 Qd2 g3 fxg3 Qc7 Qd1 Qd8 Nd2 d5 Nc4 h5 Na3 d4 Rb1 h4 Ra1 h3 gxh3 d3 Nb1 d2+ Kf2 Bf5 Kf3 Bd3 exd3 Nd7 Ke2 Nb8 Ke3 Kd7 Kd4 Kc6+ Ke5 b5 c4 f5 d4 e6 a3 f4 a6 b4 a7 f3 Qc2 d1R Bg2 b3 Nd2 b2 Ne2 b1R Bb2 Be7 Rf1 Na6 Ne4 f2 Nf4 Qc8 Nh5 Rd2 h4 Re1 h3 Ree2 Rae1 Nf6 Bh1 Rg8 Qc3 Rb8 a8N Nh7 Nc7 Rb4 Nd5 Ra4 Qd3 Bd8 Nb4+ Kc7 c6 Nc5 Qc3 Kb6 c7 Nd3+ Kd6 e5 c5+ Kb7 Qc4 Rg5 Bg2 Rd1 Bh1 Ra1 Bg2 Ra2 Bh1 Qb8 Ke6 Qc8+ Kf7 Rd2 Ng7 Rc2 Kg8 Re2 h5 Rc2 Nf6+ e4 h6 Rd5 Ng4 e3 Bf3 e2 Kh8 Rd2 Nh5 Rc2 Rg1 f1N Nf2 Nh2 Ref1 e1R Be4 Qf5 c8N Rd2 Bf3 Re5 Na7 Qc8 Nb5 Rg5 Re1 Re2 Rgf1 Rc2 Nd6+ Kc7 Nb5+ Kd7 Be4 Ke6 Bg2+ Kf5 Bf3 Rd7 Bb7 Rd5 Bc6 Nf6 h7 Re2 Nh1+ Ke4 Nf2+ Kf3 Ra1 Rc2 Rae1 Re5 Kg7 Rd2 h8B Nh7 Kg8 Rf5 Be5 Rg5+ Kh8 Rc2 Bd6 Rd2 Ng4+ Rf2 Rg1 Rg2 Nf2 Ra7 Rh1 Ra4 Rhf1 Bf6+
3qN1qR/1QPb3P/NRP3B1/4B1qr/k3K1qb/2r3P1/4PR1r/2Rb1N2 w - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 fxe5 c5 axb5 h4 d4 Na6 dxc5 Rh7 Ra2 Rh6 Ra1 Rh8 Bg2 g5 Bf1 Ne7 Nh3 Nb4 Qd3 Nbd5 Kd2 Nf4 Kd1 Nf5 Ke1 Ng3 Qd1 Nfh5 gxh5 g4 Ng1 Ne4 Be3 g3 Bf4 g2 Bc1 Ng3 hxg3 Qc7 Nf3 Qb6 Ng1 Qd8 Kf2 d5 Ke3 Kd7 b4 a5 c4 f5 h6 a4 c6+ Kc7 h7 Kb6 e6 h3 c5+ Ka7 e7 a3 e8N h2 c7 a2 b6+ Ka6 b5+ Ka5 b7 Bd7 b8R Be7 b6 Bh4 Nh3 g1Q+ Nf2 d4+ Kd3 f4 b7 f3 c6 Rf8 Ne4 f2 Bh3 f1Q Qb3 Qff6 Bf5 Qg5 Bg6 Rf2 Bb2 Rf5 Qb6+ Ka4 Nbd2 Rd5 Rf1 a1Q Bc3 Qa2 Rf2 Qd1 Rg1 h1R Qb1 Qc1 Nf1 Rh2 Qb6 Qcf4 Nc5+ Ka3 Ba1 Qfg4 Na6 Ka4 Rc8 Re5 b8R Qg8 Qa7 Rc5 Rb6 Rc1 Qb7 Ra7 Rf4 Rc3+ Ke4 d3 Ra8 d2 Rc8 Rb3 Be5 d1B Rh1 Rc3 Ra8 Q4e6 Rf2 Qeg4+ Bf4 Qh6 Ne3 Qc8 Ng7 Qh8 Nb8 Ra5 Na6 Bb3 Rc1 Bd1 Nf1 Rh5 Rb8 Qhg5 Ra8 Qe6+ Be5 Qcf8 Re8 Qfe7 Ref8 Qd8 Ne8 Qg7 Rh8 Qgg8 Qc8 Qh3 Qb7 Qhg4+
1kn2B2/q2R4/4QrnP/qBNB1Pb1/2p5/2b1PNP1/2r4P/BK2R1Nq w - - 0 1 illegal: No proof kernel
R1Q5/1n3B2/1qP1bKP1/Bp1rR2P/RRq2n2/6P1/1NP1r2b/2B1r1kN w - - 0 1 legal: proof: e4 f5 exf5 a5 d4 h5 Qxh5+ g6 f4 c5 dxc5 a4 Qh7 g5 fxg5 a3 bxa3 Na6 a4 Nb8 a5 Qb6 Be3 Qc7 Bc1 Qd8 Kd2 d5 Kd3 Kd7 Kd4 Kc6 Ke5 b5 a4 e6 h4 d4 h5 d3 g6 d2 g3 d1Q a6 Q1d3 f6 Qf3 a7 Qfd3 f7 Qb6 a5 Na6 Ra4 Nf6 Rb4 Nd5 Nh3 Nf4 Nc3 Qc4 Kf6 e5 Qg8 e4 Na4 Kd5+ c6 Kd4 Nb2 e3 Nf2 Nc5 a6 e2 Rh4 e1R Nh1 Rb8 a8R Nb7 a7 Bc5 f8B Be6 Bg2 Re2 Bd5 Rd8 Bg7 Rd6 Qc8 Re8 Rb8 Re1 a8R Rd7 Bh6 Ree7 Bd2 Rd6 Bc3+ Ke3 Raa4 Ke2 Rba8 Kf1 Rg4 Re8 Rg5 Bg1 Re5 Bh2 Bg5 Kg1 Bh6 Nd3 Bc1 Nf4 B3d2 Bh3+ Be6 Rd5 Bf7 Re2 Rb3 Be6 Ba5 Re1 Rbb4 Bd7 Rg5 R8e2 Re5 Be6
2b1b1R1/2Pq2p1/nkNrP3/6R1/1N1nBQq1/KPPr4/1P1N1q2/B3R1R1 w - - 0 1 illegal: Other
5Q2/2pk3b/1B1B1R2/1q2b1K1/P2P1b2/r1PBPN1r/1b2B2P/N1Rb2Rq w - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 d5 exd5 Kd7 b4 b6 bxa5 Ra6 d6 Kc6 d7 Ra8 Nc3 e5 Bh3 e4 Rb1 e3 Bf1 e2 Ra1 Nf6 Nb1 Ng4 Nf3 Ne3 fxe3 Bb7 Ng1 Ba6 Kf2 Kd6 Qe1 Ke7 Qd1 Qe8 d8R Nd7 Rb8 Qd8 Rc8 Nb8 Rxb8 Kd7 Rc8 Ke8 Kf3 e1B Kf4 f5 d4 g5+ Kf3 f4 Kg4 f3 h6 f2 h7 b5 c3 b4 Na3 b3 Nf3 b2 Rg1 b1B Be2 f1Q Nc2 Kd7 Ba3 Qe8 Bc5 Bg3 Bb6 Be5 a3 Bc4 a6 Bb3 a7 Be7 Kf5 g4 Qc1 Bf8 Kg5 g3 Bd3 Qg2 Qf1 Qh1 Qf2 g2 a4 Rb8 a8B Ba3 Bae4 Bb2 Be2 Rb7 Rc1 g1B B4d3 Rb8 Qf1 Rb7 Ra8 Bf2 Ra6 Bfg3 Qf2 Qe6 Rg1 Qc4 Qf1 Qb5 Qf2 B1a2 Rac1 Bb1 Na1 Bd1 Qf1 Rf8 h8B Ra8 Bc4 Bh7 Bcd3 Re8 Bg7 Re6 Bf8 Rh6 Bfc5 Rh3 Bd6 Qd5 Bbc5 Rb3 Bb6 Qb5 Nd2 Ra3 Qf8 Qg2 Nf3 Qf1 Ra8 Qe1 Re8 Qf1 Re6 Qg2 Rg6 Qh1 Rf6 Bgf4+
2qR3N/2pP2kP/2B3Pp/1B1q4/4r1NR/qB1n2P1/PrbB1b2/K1Q1N3 w - - 0 1 illegal: No proof kernel
1Nq4K/1P1p2P1/2r1nPR1/nn1NBN2/1rPRQ3/2pB3n/6P1/kNB1b3 w - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 b4 hxg5 b3 axb3 Na6 b4 Nh6 b5 Nb8 b6 Ng8 b4 c5 b5 Ba6 b7 Qc8 b6 Bb5 cxb5 c4 d3 c3 Bb2 Qc7 Bc1 Qc4 dxc4 Bh6 Na3 Bg7 Nb1 Bf8 Ke2 e5 Kf3 Ke7 Kg4 h5+ Kh4 a5 f4 a4 g6 a3 Kg5 e4 g7 a2 Kg6 e3 Qg4 Kd6 f6 Kc5 f7 Kb4 f5 Kb3 f6 e2 Bd2 Kb2 Bh6 e1N Rh2 h4 Bg5 h3 Qf3 Ra6 Bf4 Nh6 Ne2 Bc5 f8N Nf5 Qe4 Nc6 b8N Bf2 b7 Nf3 b6 Ng5 Nd4 Ne6 Bd3 Nd6 Nf5 Be1 Bd2 Rg8 Kh7 Na5 Ng6 Nb5 Nf4 Rf8 Rh1 h2 Nd5 Rc8 Bh6 Rc6 Kh8 Ra8 Rf1 h1N Rf3 Ra6 Rg3 Nf2 Rg6 Nh3 Be3 Nb3 Bg5 Ra4 Bf4 Na5 Bc1+ Kb3 Na6 Rb4 b8B Na7 b7 Nb5 Bcf4 Kb2 Bbe5 Rd6 Nb8 Rb6 Nd2 Rc6 Rd1 a1Q Nb1 Qa3 Bc1+ Ka1 Bf1 Qa2 Rd4 Qf2 Bd3 Qe3 Bg3 Qf4 Bh2 Qc7 Be5 Qc8+
1N2K2Q/2B5/2R1PR2/b2B1pP1/bq2b1Np/r1NR1P1n/2kqP1Pb/3N4 w - - 0 1 illegal: Other
2Nb4/R1Pn4/P2qqP1R/3B1BN1/1B1Pp2b/1bP4B/K2pQ3/2kbn2R w - - 0 1 legal: proof: d4 b5 g4 d5 b4 a5 bxa5 c5 e3 h5 h3 f5 gxf5 g5 h4 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 dxc5 d4 hxg5 d3 Rh2 Rh6 Rh4 Rd6 Rh1 Rd4 exd4 Qd7 Nc3 Qc7 Nb1 Qd8 Kd2 Kf7 Kc3 e5 Kb3 b4 a4 h4 f4 d2 f6 Ke6 c3 Kf5 a6 Ke4 c6 g3 g6 h3 a7 h2 a8B g2 a5 Na6 f7 Bg4 f5 Nf6 g7 Nd7 g8B Be7 f8R Nac5+ Ka2 Nd3 f6 Ne1 Nf3 g1B Be6 Bf2 Ba3 Bh4 Bh3 Kd3 c7 e4 Qe2+ Kc2 Bf5 Qc8 a6 Bd8 Ng5 Bh5 Bd5 Bf3 Rg1 h1Q Rh8 Qh2 Rh1 Qd6 Rh2 Nc5 Re8 Qce6 Rf8 Be7 Ra8 Nd7 Ra7 Bd8 Bg2 Bg3 Rh6 Bh4 Bgh3 Bh5 Qg2 Bd1 Qg4 Nb8 Qe2 Nd7 Qh2 Bg4 Bc1 Nf3 Na3+ Kd1 Nc4 b3+ Kb1 b2 Ka2 Kc2 Nb6 Kd1 Nc8 b1B+ Kb3 Bc2+ Ka2 Ba4 Ba3+ Kc2 Rg1 Ne1 Bb4 Bd1 Rh1 Kc1 Qe2 Bab3+
3q2Q1/2bb1N1R/Rpq1BnPr/3PB2k/R3pp1N/K5RP/3P1P2/3q2B1 w - - 0 1 legal: proof: e4 d5 exd5 a5 h4 g5 b4 g4 bxa5 Na6 c4 Qd6 c5 Nb8 cxd6 Ra6 Na3 h5 Rh2 Rb6 Be2 Nc6 Nc2 Rb3 Na3 Ne5 Rh1 Rh3 Nb1 Nf3+ Kf1 Ng5 hxg5 h4 Ke1 Rd3 Bf1 h3 Qc2 h2 Qd1 Rdh3 gxh3 Rh7 Qc2 Rh5 Qd1 Rh8 a4 f5 d7+ Kf7 d8B Kg6 a6 e5 a7 c5 a8R e4 a5 b6 a6 g3 a7 c4 Bb2 g2 Nc3 Be7 Ra4 Be6 Be2 Bb4 Nf3 Rh7 Rg1 h1Q Bc7 Rh6 Nb5 c3 Nh4+ Kh7 Bg4 c2 Nd6 c1Q Nf7 Nf6 Bh2 f4 Be5 Bc3 Rh8+ Kg7 a8R Qa1 R8a6 Bc8 Be6 Bd7 g6 Bd4 Qc1 Qc3 Kd1 Qc6 Qc5 Bc3 Kc2 Bb4 Qc4 Bd6 Kb2 Bb8 Ka3 Bc7 Rb1 g1Q Rb3 Qgg2 Bg1 Qg5 Qc5 Qf3 Qe7 Qe2 Rg3 Qd1 Qd8 Rh7 Nd6 Kh6 Nf7+ Kh5 Qg8 Rh6 Rh7 Ng4 Kb2 Qd8 Ka3 Nf6
2Rnr3/P2K1P2/Bq3P1P/2N2q1B/2ppq1Q1/1R2R1P1/2pn1B1B/k3b2N w - - 0 1 illegal: Other
5r1q/4P1QR/qb1N2bN/nn1PP3/3R1R1q/4b3/kB1NP2P/1R1rrB1K w - - 0 1 illegal: No proof kernel
1bBq3n/1PP3R1/1q3PP1/N2bn3/1n1k1qQR/2rNb1B1/K1P2B2/1rR3R1 w - - 0 1 illegal: No possible last move
BB2N1BN/PRn2b1b/2bB4/R1rn3r/P1P1qr2/1PPK4/b3Q3/1kb3R1 w - - 0 1 illegal: Other
4rr1B/2QR1P1P/1R4PB/1nRbP1r1/Pn2B3/3N4/bB2k1qK/1Nrnb3 w - - 0 1 illegal: No proof kernel
QRKNB3/2nq4/PrP2B1R/1r3nbq/N1qP3R/1BB1P1Pq/3q2b1/7k w - - 0 1 illegal: No proof kernel
q3KQR1/1N6/P6R/1R2bP2/1NrBBn1r/1bn2bP1/2NPPrNq/5k1r w - - 0 1 illegal: No proof kernel
R4bq1/Kr1BPn2/b1r2k2/5n1q/2rN3P/1PP5/R3PQN1/qNB2BrN w - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 d5 Kd4 a5 h4 f5 c6 g5 Kc5 d4 e6 f4 c3 d3 b3 f3 b6 g4 c7 g3 b7 f2 Kb6 d2 h6 g2 h7 a4 Ra2 a3 Bb2 Ra7 Qe1 d1Q Bc1 Kf6 e7 Q1d5 Nh3 Qh5 Rg1 Nc6 b8N Ne5 Nc6 Nh6 Nd4 Nf5 Rh1 Rg8 h8N g1R Ng6 Nf7 Ngf4 Ba6 Ng2 Qe8 c8B Rg6 Bd7 Rh6 Rc2 a2 Rd2 a1Q Rb2 Rc7 Ra2 Rc6+ Ka7 Qd8 Ne3 Rg4 Rg1 Rf4 Rg8 Rg6 Ng2 Rgg4 Ne6 Rb4 Rh8 Rgc4 Nd4 Bh6 Rg8 Qf8 Rh8 Qg7 Ra8 Qg8 Ng5 Bf8 Ne4+ Ke5 Ng3 Kf6 Nh1 Rb8 Ne3 Rbb4 Bg2 f1R Qf2 Rg1 Bf1 Rb8 Ng2 Rb7#
2N4r/1Qn5/4R2P/2r2kB1/BPRr1bn1/PR3P1b/nKrP1q1n/1R2NB2 w - - 0 1 illegal: No proof kernel
B2br1Bb/1bRP4/qP1B4/kP1N4/1n1N1KPn/4n2r/p2NPr1R/1N5Q w - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b6 Kd7 Kf2 h5 Kf3 c5 g4 a5 d4 f5 b4 a4 d6 Kc6 e6 Kb5 d7 a3 d5 a2 e7 c4 e8N h4 d6 f4 g6 h3 g7 h2 Bg2 c3 Ba3 c2 Nf6 Nh6 g8B c1B Nc3+ Ka6 b5+ Ka5 Bd5 Be7 Bc4 Rf8 Bg8 Bb2 Rc1 Nf5 Nb1 Na6 Rc7 Nh4+ Ke4 Qe8 d8N f3 d7 f2 Qd3 f1N Bd6 Ne3 Qd5 Nb4 Ne6 Ba6 Qc6 Qc8 Nf3 Qb7 Qd5 Rae8 Nfd2 Bd8 Qc6 Be5 Nd4 Qa7 Rf1 h1R Rf2 Rh2 Qc1 Rh3 Qh1 Bc8 Bf3 Qa6 Rh2 Be7 Nh7 Bh8 Nf6 Rf7 Ke5 Rff8 Ba8 Rf7 Ke4 Bb7+ Nd5 Rf6 Ke5 Rf2+ Ke4 Rg2 Kf4 Bef6 Ne6 Bd8 Nd4 Rf2+
3RB2B/2B5/2rRK1Rb/4PPP1/1rQr2k1/P2p1bb1/2N1q1NP/qn1n3B w - - 0 1 illegal: No proof kernel
q4q2/RP1rb1N1/b1rP2Bk/1Bn4N/3KPN2/2pBP1B1/P1n3Rr/2b4Q w - - 0 1 illegal: No proof kernel
q1b1n3/1P2K1nB/1P2Q3/B3b1rR/b1p3N1/4R1BP/kP2BnPN/4r1Rq w - - 0 1 illegal: No proof kernel
1Q2n3/1p1RN2k/1PR1b3/Kb2R1q1/P1BPn3/B1RP4/PNr2rqr/6Nq w - - 0 1 illegal: No proof kernel
B3B1k1/2P1Rbr1/NP1q3P/2R1P1K1/PQ1prn2/N5R1/r2b3r/B2Rn1r1 w - - 0 1 illegal: No proof kernel
1RB1n2R/q2b3b/4r1P1/N1Nn3R/1nrKp1NQ/PNP3BP/1Pbb4/1k6 w - - 0 1 illegal: No possible last move
1R1q3R/3R2bb/Q3rPr1/1PPNbBNN/3P3k/3n1P2/1p1K1R2/brB2n2 w - - 0 1 illegal: No proof kernel
r7/R5NQ/p1rKB2P/2r1nNRR/3PP1b1/P1BP1q1R/5b2/Nb3rkn w - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 b4 e5 fxe5 d4 bxc5 d3 cxd3 Nc6 d4 Nb8 Kf2 Kd7 Kg3 Kc6 Kf4 Kd5 h4 b5 h6 f5 h5 b4 e6 b3 c6 b2 h7 Bc5 c7 Nf6 e7 Ne4 e8N Nf2 Bh3 Qf6 Na3 b1B Qc2 Nc6 Nf3 Ne5 Nh4 g6 Rg1 Nh1 Ng7 a6 Rg5 Re8 h8R Re6 Bb2 Rc6 Bc3 Bb6 h6 Be6 Rh5 Bc5 Rg8 g5+ Ke3 g4 Kf4 g3 c8R g2 e3 g1R Rc7 Bb4 Ra7 Rc1 Qd3 Ba5 Nc2 Bd8 a3 Qf7 Nf3 Bh4 Ra2 Bc8 Na1 Bf2 Nh4 Rc5 Qe4+ Kc4 Qb7 Kd3 e4 Ke2 d3+ Rc2 Bg4+ Kf1 Qd7 Rc1 Re2 Qf8 Re3 Kg1 Rh3 Qf6 Qf7 Bd7 Qg6 Qf8 Qh7 Be6 Kg5 f4 Nhf5 f3 Kf4 Qf7 Ne8 Rc6 Rgg5 Bc8 Ng7 Bd7 Bd2 R1c5 Bc3 Qb3 Ng3 Qd1 Be6 Qf1 Bb3 Bg4 Be6 Be1 N3f5 f2 Bd7 Qe2 Be6 f1R+ Rf3 Bf2 Rfh3 Nf7 Bd5 Nd6 Ke5 Qf3 Ke6 Nc4+ Ke7 Qe3 Be6 Qf3 Kd7 Ne5+ Ke7 Rcc8 Kd6 R8c6+
Rn2rR2/N1bR2pK/2n4P/2q1PQR1/1PB1n2r/k1PnB1N1/P1q5/5bB1 w - - 0 1 illegal: No proof kernel
5N1q/n1B2P1B/Pq1RqR2/1r1Q1KP1/2b1N2r/3P2pn/kBN2N1P/5qb1 w - - 0 1 illegal: No proof kernel
3bB2B/1P3r2/bPr1n3/R1Nq1n2/rqpN3P/R5K1/Qr2NP1P/4k1BN w - - 0 1 illegal: Other
1B1K2nR/P1nBRB2/1k1q3P/6qb/2P2rR1/2q1N1pN/b2BPbPb/Q7 w - - 0 1 illegal: Other
2R1r3/K2P1PbQ/1B1Np2n/1RRbP1qP/7P/1Bq1k3/NRbq4/2r1b1N1 w - - 0 1 illegal: No proof kernel
2qR3q/1bP1Rn2/B1Nn1pq1/P2q4/2PR1NBB/k1P2P2/r4R1K/1r2Q2n w - - 0 1 illegal: No proof kernel
BRqN1B2/nP1N4/q1p4r/1P2rBk1/3qP1r1/1rPBnP1K/3R3N/3b3Q w - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 e5 gxf5 g4 d4 Bh6 dxe5 Bg5 hxg5 Bb7 Bg2 Ba6 Bf1 Bc8 e4 Ke7 b4 a5 f3 d5 Kf2 h5 Kg3 d4 e6 a4 g6 Kf6 g7 a3 e7 d3 e8B d2 b6 a2 b5 Rh6 c3 Kg5 f6 Ne7 g8B Nd5 f7 Nc6 f8N Be6 Bd3 Ne3 Ba3 Na7 Bg6 Qc8 Nd7 Bb3 Bf5 h4+ Kh2 g3+ Kh3 g2 Rh2 Rh5 Ne2 g1R Bd5 Rg4 Qh1 d1Q Nd4 Bc2 Bb7 c6 Bf8 Qd2 Rg2 Bd1 Rh2 Qf2 Nd2 Rh6 Nf1 Qg1 Rc1 a1Q Rcc2 Qa6 Rcd2 Rb8 Ba8 Rb7 Ne5 Re7 b7 Ree6 Nd7 Re5 Rhg2 Qf2 Kh2 h3 Ne6+ Kh4 Nd8 Kg5 Ra2 Qb2 Rd2 Qb4 Ra4 Qc5 Rd4 Qcb6 Rd6 Qd4 Re6 Rgh4 Kg3 h2 Re8 Rf4 Qg2 h1R Nh2 Rf1 Qh1 Re1 Rf2 Re2 Rg2 Rb2 Rd2 Kh5 Kh3 Rb3 Ne6 Rg4 Rd8 Qc7 Rb8 Qc8 Nd8 Kg5+
qn1r3N/P1bQ1P2/2nN4/P2PrnK1/3RR3/1PBpR3/k1pRb2B/2bB4 w - - 0 1 illegal: No proof kernel
1BNQR3/1P2q1R1/2B4b/2P1np2/2Prn2k/N1R2rpP/q1P1N1Kr/2Nb4 w - - 0 1 illegal: No proof kernel
1BkN1R2/pqP4B/1b3KB1/1nQnn3/3rN3/PrPb3q/P2RPBp1/6N1 w - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 c5 gxh5 Qc7 d4 Qc6 dxc5 Qg6 Bf4 Qd3 Bc1 Qa3 bxa3 Rh7 Qd3 Rh6 Qd1 Rh8 Kd2 Kd8 Kc3 f5 Kd4 b5 h4 g5 h6 d5 h5 g4 h7 g3 e6 f4 Ke5 f3 c6 f2 h6 d4 Be3 d3 Qc1 b4 Nd2 b3 Ne4 b2 Bg2 f1Q Bf2 Ba6 e7+ Kc8 e8B b1Q Bg6 Ne7 Kf6 d2 Bf3 Rg8 h8B d1N h7 Nc3 Rh4 g2 Rf4 Nb5 c3 Bh6 Qe3 Rd8 Qc5 Rd4 Bfh5 Qd3 Rd1 Qh3 Rd2 Qb1 Bg7 Qb3 h8N Qd5 Rf5 Be3 Nf7 Qb3 Bh7 Nd5+ Ke6 Qb4 B5g6 Nd7 Nd8 Rb8 Be5 Rb6 Bb8 Qb1 Kf7 Ne5+ Kg7 Qb3 Rf7 Qb4 Qc4 Qe7 Qc5 Qb7 c7 Nd6 Re7 Rb3 Re8 Bd3 Rg8 Nb5 Rf8 Rdb4 Qc6 Bb6 Qc5 Ne3 Kf6 Ra4 Rc2 Rd4 Rd2 Nd5+
3Rb1Kr/1PBR3r/2B1P3/2PN1N2/1n1nB3/Qn1npq1P/p4P1R/k3bB2 w - - 0 1 illegal: No possible last move
B6n/P1bBPpkr/r3p1rR/3Qn2R/P7/BqR1KPBr/1bPN4/1N6 w - - 0 1 illegal: No proof kernel
3k2b1/p2nrn2/P4qBN/4PrR1/Qq4PB/2p1q1N1/P1P3K1/nNB1N1R1 w - - 1 2 legal: proof: e4 f5 exf5 g5 d4 e5 dxe5 g4 b4 g3 hxg3 Kf7 g4 Ke8 g5 Bc5 Be2 Bb6 Bf1 Ba5 bxa5 Qe7 Rh4 Qf6 Rh1 Qd8 g4 c5 f4 b5 Kf2 h5 a6 d5 g6 h4 g7 d4 f6 h3 f5 h2 Qf3 b4 Qc3 d3 Bb2 c4 Bc1 d2 Kg2 d1Q Qd4 c3 Bb5+ Nd7 Ne2 b3 Bd3 b2 Ng3 Rh5 Qa4 Nh6 g8N Nf7 Nh6 Qe1 Rf1 Qe3 Rf3 Nd6 f7+ Ke7 f8N Nf7 Be4 h1N Nh7 Nf2 Ng5 Nd3 Rf2 N3c5 Nf3 Nb3 f6+ Ke8 Ne1 Rf5 Bd3 Qdb6 Rf1 Kd8 Rh1 Rb8 Rh5 Rb7 Rg5 Qe6 Na3 b1Q Be4 Qb2 Nb1 Qa3 Bd3 Qb4 Be4 Nd6 f7 Qf6 f8B Nf7 Bc5 Rb6 Bf8 Re6 Bc5 Re7 Bd6 Rf4 Bg6 Rf5 Bc5 Qef4 Bg1 Qe3 Bf2 Bb7+ Ne4 Bd5 Bh4 Be6 Ng3 Nd6 Nh5 Bg8 Ng3 Nf7 Nd3 Qef4 Be3 Qb5 Na3 Qbb4 Rg1 Nd4 Nb1 Nb3 Bc1 Na1 Ne1 Qe3
7R/1qBb1B2/1Kpb2qb/6PR/qPpnP1R1/N1N1P3/QnP1B3/B3k2r w - - 0 1 illegal: Other
2KNb3/2NP1n1p/BBr5/1P2rB2/R2p1Q1P/bPnPB2R/3bknN1/r7 w - - 0 2 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 d4 fxg5 Nf6 c4 Qd5 cxd5 Ng8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 a5 h4 a4 g4 a3 f6 c6 g6 e6 g5 a2 b3 Na6 f7 Rb8 d6 Nh6 d3 Nc7 g7 Be7 g8N Rb6 f8B Bd7 g6 Be8 g7 Na6 d7 Kb4 Qf3 c5 Nh3 c4 Nf4 c3 Ng2 c2 Rh3 Nc5 Nc3 Ne4 Be3 c1N Qf4 Rc6 Be2 Nf2 Bf3 Bc5 Ne7 Ne2 g8B Nf7+ Kf6 Bd6 Be4 e5 Bf5 e4 Ncd5+ Kc5 Ke6 Nc3 Nc7 Kb4 Kf6 Nd8 Bd5 Nf7 Ke6 Rg8 Kf6 Rg5 Ke6 Ra6 Bb7 Rc6 Ba6 Rh5 Bc1 e3 Bd2 e2 Be3 e1B Kf6 Rc5 Ke6 Bd2 Nc6+ Ka3 Be7 Kb2 Nd8 Kc2 Bf6 Bf8 Be7 Rc4 Bc5 Be7 Ba7 Ba3 Bb6 Rc5 Ke7 Rg5 Rb1 a1R Rb2+ Kd1 Ra2 Bb4 Ra4 Ba3 Qh2 Ke2 Qf4 Nh8 Kd6 Re5+ Kc6 Nf7 Kb7 Rg6 Kc8 Rc6
1k1bb2b/3p3Q/4RR2/2PPq2b/7r/pBnRq1PP/3P1nRB/1NN3BK w - - 0 1 illegal: No proof kernel
1bN1r2N/1N1r3P/1BP2pBP/6Nr/qp1n4/Bk1K4/1P1Rp1RP/b3n1Q1 w - - 0 1 illegal: No proof kernel
2r2b2/2np4/KnPpR1b1/1PN4k/2B2Brp/2q1P1PN/1P5R/1BB1bNQ1 w - - 0 1 illegal: Other
6Nb/R4PPq/pP5R/1B2P1R1/p1K2Bn1/3qN3/P2pNrn1/kr2Nb1Q w - - 0 1 illegal: Other
1K4k1/1NPR2bp/6rP/2r5/1p1PPBB1/1nPq1RnB/p4b1Q/1NN3Nq w - - 0 1 illegal: No proof kernel
r3N3/PnNpB3/1QnNbP2/1p1B1B1p/1k1PR1K1/2bB3P/2n1P1R1/2q1b3 w - - 0 2 legal: proof: g4 b5 d4 e5 dxe5 f5 gxf5 a5 b4 Bb7 c3 Bc8 bxa5 Ra6 Nd2 Rd6 Nb1 Rd4 cxd4 Qe7 Qb3 Qh4 Qd1 Qd8 a4 Ke7 f4 c5 Kf2 g5 Kf3 h6 a6 c4 e6 Kd6 f6 c3 f5 c2 a7 Kd5 a8B+ Kc4 a5 Ba3 a6 Qe7 a7 Qd6 f7 Qa6 f8N Qb7+ Kg4 Kb3 e7 Ka4 e8B Kb4 f6 Ne7 Nh3 Qc6 Nf2 Na6 Qd2+ Qc3 Bg6 Bb7 Bh3 Nc5 Bd3 Nc6 Ne6 Rb8 Ng7 Bb2 Ne4 Rf8 Qe3 Re8 Bd2 c1N Nd6 Na2 Qe6 Rh8 Bf4 Qc1 Nge8 Bc3 Rf1 Rf8 Bd2 Rh8 Rf4 Rg8 Re4 Rh8 Kg3 g4 Kf4 g3 Bf5 g2 h3 g1B Kg4 Bf2 Bf4 Bb2 Nc3 Be1 Bd2 Ka5 Nd5+ Bc3 Rb1 Nab4 Ndc7 Nc2 Ra1+ Kb4 Bf4 Nd8 Bd2 Bd5 Rb1+ Bb3 Bd5 Ncb7 Bf4 Qd2 Rd1 Qc1 Be5 Bf2 Rg1 Bfe1 Rg2 Nc6 Nf7 Nb8 Qb6 Nc6 Nfd6 Rf8 Ng7 Ra8 Nge8 Qa3 Nf7 Qc1 Bd6+ Nc5 Be7 Bc4 Nfd6 Nb7 Re5 Bb3 Bd5e4 Bg8 Bd5 Be6 Re4 h5+
1r2Rb1R/3nq3/3P2p1/2B2rPp/pBNQ3B/1Bq2k1P/NPPKn3/R5n1 w - - 0 2 illegal: No possible last move
Nq1kb3/2N2B2/1P3RN1/1p2Q2p/2bpBRbK/4P1Bq/1P2r1PP/2n3Nr w - - 0 2 illegal: Other
R1b4B/2RPPk1P/6np/qpBbq1p1/n1N4P/Qr6/4NqP1/RB1R1K2 w - - 1 2 illegal: No proof kernel
qq1BBnRR/p1NrQb2/4npB1/1b5P/3P1P2/PN1N4/Ppn5/B2k3K w - - 1 2 legal: proof: g4 b5 d4 d5 e3 c5 Be2 h5 gxh5 e6 Bf1 Na6 dxc5 d4 Qg4 d3 Kd2 Be7 Qe2 Bf6 Ke1 Rb8 Qd1 Bd4 exd4 Rb6 Bf4 Nc7 Bg5 Ra6 Bc1 Ra3 bxa3 Na6 c4 Ke7 f4 Kf6 Kf2 Kf5 Kg2 Ke4 h4 g5 h6 d2 c6 Ke3 c7 b4 c5 e5 h7 g4 c6 e4 Bc4 b3 Ne2 g3 Bd3 Nc5 Bb2 Ne6 Qe1 d1B Nd2 Nf6 Nc1+ Be2 Rh2 Rg8 h8B Rg5 Kh1 Nh7 Bf6 Nhf8 Rh3 Qe8 Bd8 f6 Bb1 Rf5 Nd3 Rd5 Rh2 Ba6 c8N Bb5 c7 Bc4 Nb6 g2+ Kg1 Qc6 c8B Qa8 Bd7 Qb8 Na8 Bb5 Qd1 Bh5 Nc7 Bf7 Be8 Qa8 Qc2 Ke2 Qc5 e3 Qe7 Kd1 Rh3 e2 Rg3 e1N Rg8 Ke2 h5 Nc2 Rh8 Nb4 Bc2 Qb8 Rb1 Qa8 Ba1 b2 Rc1 Qb8 Bb1 Nc2 Nb3 Qa8 Rf1 Qb8 Rf3 Kd1 Rg3 Qa8 Rgg8 Qb8 Kh2 g1Q+ Kh3 Qe1 Kh2 Qc3 Kg2 Qc6 Kh1 Qca8 Ne1 Ne3 Bg6 Nc2 Nd3 Rd7+
b3q1kr/p2p2P1/1P2rRq1/P1pP4/PBNb3r/K4qN1/R1QR4/1B1N3R w - - 0 1 legal: proof: b4 g5 h4 f5 hxg5 b5 a4 Bb7 e4 Nf6 exf5 Nc6 c3 Na5 bxa5 Nd5 c4 b4 Rh3 Nc3 Rh1 Nb5 cxb5 Bc8 f4 Kf7 d4 c5 Kd2 e5 Kc2 h5 Kb3 h4 g4 h3 f6 h2 g6+ Kg8 g5 e4 d5 e3 b6 e2 g7 e1Q f7+ Kh7 g8R Qe6 f5 Qdf6 Bd2 Qh6 f6 Qf5 Qc2 Bg7 f8R Qd3+ Nc3 Qh5 f7 Be5 Ne2 Qf3 Ra2 Qf6 Ng3 Qe4 Nd1 Qf3+ Bd3 Bb7 Rg6 Bg7 Rf6 Re8 Be1 Ba8 g6+ Kh6 Kb2 b3 Bb4 Re6 Ka3 b2 Re8 b1Q f8N Qe5 Re7 Qb8 Ref7 Qe8 Re7 Rd6 Re2 Rc6 Rd2 Re6 Rf4 Be5 g7 Bd4 Ng6 Kh7 Rf6 Kg8 Ne5 Rh4 Nc4 Rh8 Re1 h1R Rf1 R1h4 Rh1 Qa1 Qb3 Qc3 Bb1 Qc2 Qc3 Qcg6 Qb3 Qf4 Qc2 Qf3+
4B1K1/R2r4/pRQ1n1P1/qP5N/r1Brp3/PBq5/1qP1Pp1N/k4nBN w - - 0 1 illegal: No proof kernel
n6R/3Rp3/1k1p1Rb1/r2PP2r/r1P1n1BP/K2P1Qn1/5pR1/BN2B1nN w - - 0 1 illegal: No possible last move
2RRnr1K/B1bB4/1P1B2p1/3P1rN1/R2pp3/n1P5/P2QPqNp/b1B3k1 w - - 0 1 illegal: No proof kernel
B3nk1B/5P1p/1NQ5/2P4r/r2pNRPb/3P1pbp/2R2NP1/1nKN1Rq1 w - - 0 1 illegal: Other
4nBbq/3PbR2/PpB2qp1/3N1P1R/1B3p2/1pK1PP1r/2B5/r1Q1N1kN w - - 0 1 illegal: Other
RR1q1q2/2p1B2N/rP1Pppb1/2PBP2K/R7/2pNr3/nN1Q1P2/k2N2b1 w - - 0 3 illegal: Other
3q4/2np2P1/1BpbpN2/3q1B1b/RNQ1P1PR/3P1q1R/pP1nkN2/R6K w - - 0 1 legal: proof: c4 b5 a4 g5 axb5 a5 f4 Nc6 fxg5 Nb8 b6 Ra6 b7 Rb6 Nc3 Rb3 Nb1 Rb5 cxb5 f5 h4 h6 g4 Rh7 h5 Rg7 Ra3 Rg6 hxg6 h5 Ra4 Nc6 Ra1 Nb8 Kf2 e6 Kg2 Ke7 e3 Kd6 g7 Kd5 b6 Ke4 g6 h4 Rh3 c6 Qb3 a4 Na3 f4 Nc2 a3 Kh1 f3 Nb4 Nf6 g8N f2 g7 Na6 b8R a2 b7 Nc7 Ra8 Bd6 b8R Ba6 Ra7 Be2 Ra4 Bd3 Be2 f1Q Qc4+ Ke5 Rba8 Bg6 Bd3 Bh5 Bf5 Ne4 d3 Nd2 Nf6 Qd1 Rc8 Qb3 e4 Kf4 Qc3 Qd5 Qc4 Qe7 Rh8 Qd8 Rh2 Ke3 Nh3 Kf3 Nf2 h3 Rh6 Ke2 Rh8 Nf3 Be3 Nd2 Bb6 Bf7 Rg2 h2 Rh4 Be8 Rg3 Bh5 Rgh3 Be7 Kg2 h1Q+ Kg3 Qf3+ Kh2 Bd6+ Kg1 Qg3+ Kh1 Qf3+
1R2K3/p2bBrR1/5pNp/B1N2rkr/P1p5/3b1PqB/Q3qPPP/4B1R1 w - - 0 3 illegal: No proof kernel
1R2r2N/n1b1R2p/3nr1p1/1QP3P1/PB3bR1/2K1P1NR/N1n2q1P/kbr4B w - - 0 1 illegal: No proof kernel
B1N1n3/3rP1R1/n5p1/Q1p2nRP/qB3KB1/2nrPb1R/1kP2bPR/2n4N w - - 0 1 illegal: No proof kernel
2b3NN/3PpB2/PP2Bn2/QbK1rb2/1p2Pn1R/1P1RNBk1/q3q3/br4B1 w - - 0 1 illegal: No proof kernel
1r4B1/pb2N2Q/1n3bPN/KBpn2P1/2P1nB2/2Rq3P/P1Bn3q/rR2N2k w - - 0 1 illegal: No proof kernel
1N2nR2/1PN1QR2/2Rp2n1/p2Pn3/P1N1RK2/1r3P1P/1b1B2kp/rbqBb3 w - - 0 1 illegal: No proof kernel
3n1n2/1p1R1P2/NBRn1NNr/P4K1p/qpBb4/kP2PN1P/b3Q3/R3r1r1 w - - 0 1 illegal: Other
k1nN2r1/r1b1bq1N/1p1BP3/n2Pp1Qb/N3n1Bp/5NPP/B3P3/K3R2R w - - 0 1 illegal: No proof kernel
3Q3N/bPPB1p2/k4Np1/1N3nPR/br1p4/5PBr/qnb4P/K2BB1Rn w - - 0 1 illegal: No proof kernel
b5Kb/R1pB2qn/1n2Np2/2BBnkpR/1N2b3/P1P2PB1/PP4r1/3r1QR1 w - - 0 1 illegal: Other
Bb1rb2q/1q2Pp2/R4r1B/5Qp1/P2k1nn1/N4PP1/KP4pR/RqR2NN1 w - - 0 1 illegal: Other
q6K/1kpbp1bP/4r1B1/RnBN1Np1/n1BQ1P1P/2R1PBP1/1N6/1r2q1q1 w - - 0 1 illegal: Other
1R1n4/3Pp2k/1B1r1n2/2B1P3/N1r1bP1n/q1p4p/1bNN2PP/2QBRnKB w - - 0 1 illegal: Other
1rNn2Q1/RbPpPB2/KPbB1k2/2BB1r1n/p3R3/P1q2p2/2NP1N1b/4b3 w - - 0 1 illegal: No proof kernel
4nB2/k5np/1R4Rb/Nq1pNB1R/2QRP1p1/N2r1rnP/P1PP4/n5Kb w - - 0 1 illegal: No proof kernel
3Rr2b/P1qrprk1/2n3Pp/2Q2KBb/2R1P2b/b2B1RpP/6PB/RN4N1 w - - 0 1 illegal: No possible last move
3nb3/1B1pnR1p/1k2npqR/4R3/1b1PKR1P/b3bPN1/1PPBr1NN/1Q6 w - - 0 1 illegal: No proof kernel
1q1B1Rn1/PPNp1bN1/1b6/pB2Brp1/6PR/P2nRP1R/4Kp2/2n1Qrk1 w - - 0 1 illegal: No proof kernel
R2B4/K1r1PpNR/p2q1p1p/RRN2n1b/br5P/P1PB1P2/k1n5/2Q2Bb1 w - - 2 3 illegal: Other
k1N3qK/p2n1B1R/qPNb4/2PB1P2/1r4Pn/2rP3n/4Rn2/Q1B1B1Q1 w - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 axb5 g5 hxg5 Ba6 exf5 Bb7 c4 Bc8 b3 c5 Rh4 Be6 Rh1 Bf7 Rh2 Bh5 Rh1 Be2 cxd5 c4 Ra2 c3 Ra1 Bc4 bxc4 Bg7 Qg4 Bh6 Qd1 Bf8 Ke2 Kd7 Kd3 Kc7 Ke4 Kb7 Ke5 h5 g4 h4 f4 e6 c5 c2 d3 h3 f6 h2 g6 Rh6 f7 Rh7 f5 Qe7 d6 Qg5 b6 Rh6 d7 Ne7 d8B Nd5 g7 Nf4 g8B Nh3 Ra2 Rh8 Ne2 Nd7+ Kd4 Rb8 Nd2 Bd6 f8Q Ka8 Bf7 Qg8 Bh4 Rd8 Nc4 e5+ Kd5 e4 Ke6 e3 Nd4 e2 Be1 Rh4 Qg7 Rh8 Nc6 Re8+ Kd5 Re4 Bg2 Rf4 Ke6 Rd4 Bg3 e1N Bd5 Nf3 Qg1 Nh4 Be1 Rf4 Qa1 Rd4 Bf4 c1Q Re2 Qa3 Bfd2 Qa6 Bc1 Bg3 Nd6 Rb4 Nc8 Rh6+ Ke7 Rd6 Bg2 Rdd4 Bgd5 Rdc4 Ke6 Rc3 Ke7 Nb8 Ke6 Bd6 Kf6 Qd8+ Kg7 Nd7 Qe3 Qg5+ Kh8 Qg6 Rf1 h1N Qg1 Qg5 Rf3 N1f2 Rfe3 Be7 Re6 Bd6 Rh6 Qg6 Rh7 Qg8+
3k4/1Rn5/BB4Kp/Q1P1rR2/1b4b1/1NPP1QPQ/2bPQ3/1n2Nbbr w - - 0 1 legal: proof: f4 d5 b4 e5 fxe5 g5 h4 c5 hxg5 b5 bxc5 b4 a3 d4 a4 d3 exd3 Qf6 Ne2 Qb6 Ng1 Qb5 axb5 Bh3 Ra2 Bg4 Ra1 Bc8 Ke2 a5 Ke3 f5 Kf4 a4 c3 h6 g3 a3 g6 a2 e6 b3 g7 b2 b6 Nd7 b7 Ne7 b8Q Rg8 Nf3 Nc6 e7 Nde5 Qb4 Bd7 Rh5 Nc4 Bg2 Nd4 Ne1 Na3 Qf3 Ndb5 Qa5 Nc7 Rg5 Rh8 g8Q Ra7 Qgd5 Bg7 Qe6 Bd4 Rh5 Bg1 Rg5 Nab5 Na3 b1B Nac2 Na3 Nd4 Bc2 Rb1 a1B Rb7 Nb1 Ba3 Bb2 Bb4 Ba3 Nb3 Ra6 Ke5 f4 Qh3 Bg4 Rf5 Kd7 Bh1 Re8 Bg2 Raa8 Kf6 Kc8 Kg6 Ra7 Qe3 f3 Qe4 f2 Qf3 f1B Bh1 Rd8 e8Q Ra8 Qee2 Rd5 Qa6 Re5 Ba5 Kd7 Bb6 Bb4 Qa5 Rf8 Qfe3 Kd8 Be4 Bg2 Q3f3 Bf1 Bc6 Rf7 Bb5 Rfe7 Ba6 Re8 Rf7 Rh5 Rf5 Re5 Qhg2 Rh2 Qh3 Rh1
2B2N2/krP1n1PR/1N3PrQ/2K5/2Q2nRp/2Qb1rBp/6PP/1b2Q2q w - - 0 1 illegal: Other
1n2N3/pP3K1R/r1pB1P2/1QNq2Pr/1P1n1BP1/4nB2/8/kqBQ2rR w - - 0 1 legal: proof: e4 b5 c4 f5 a4 g5 axb5 d5 cxd5 g4 e5 g3 hxg3 Qd7 g4 Qd6 g5 Qd8 b6 Bg7 f3 Bf6 exf6 e5 Nh3 e4 Ba6 e3 Bf1 Ba6 Ng1 Bd3 Rh2 Be4 fxe4 Kf8 Rh1 Ke8 Ke2 Kf7 Kd3 h5 Kc4 h4 b4 h3 d4 h2 g4 e2 d6 Ke6 e5 e1Q d5+ Kf7 d7 f4 b7 f3 e6+ Kg6 d6 f2 Kd5 Qc3 e7 Rh7 Ke6 Qd4 Nc3 Nh6 Nb5 Qd3 Ne2 Qb1 Ng3 Nf5 Be2 f1N Ne4 Rh5 Nc5 N1e3 Bf3 c6 Nc7 Rh3 Ne8 Nd4+ Ke5 Qa5 d8B Kf7 d7 Rg3 Bc7 Rg1 d8B Qaa2 Na4 Qab3 Bd6 Qd5+ Kf4 Ke6 B8c7 Rf1 Ra2 Re1 Rg2 Re2 Rg3 Ra2 Rh3 Ra3 Rh7 Ra2 Nc3 Ra1 Ne4 Ra6 Rf1 h1R Rg1 Rh5 Rf1 Qdb3 Rh1 Kd5 Nc5+ Kc4 Ke5 Kc3 Ng7 Ra2 e8Q Ra6 Qe6 Q3a2 Ne8 Qa5 Qf5 Qb5 Bd2+ Kb2 Bc1+ Ka1 Qfd3 Qa5 Qb5 Qaa2 Bf8 Qg2 Kd6 Qga2 Ke7 Qd5 Be5 Rh3 Bf4 Rg3 Ne6 Rg1 Kf7 Nd7 Bc5 Rd8 Bcd6 Nb8 Ng7 Rh8 Ne8 Qde4 Nc5 Qf5 Rg7 Rh5 Rh7 Qd5+
1Qr2K1b/1bb4R/1P2PPBP/Rn3B2/N1r2P1n/1n2kN2/1B1r1q2/BQ3q2 w - - 0 1 illegal: No proof kernel
B1q4B/1n4P1/2q4N/P2RP1bB/qQPB2rk/1NQ3R1/3P1n1K/bn1br3 w - - 0 1 illegal: No proof kernel
5r2/BNq5/1RPB4/1PbP1r2/2n1K3/bbPr1nBQ/PQ3RB1/b2qk1N1 w - - 0 1 illegal: No proof kernel
bnq3N1/1B1R1rr1/Q2p1NP1/1r2bqN1/1R1B1nP1/2P1K3/1P1Q2P1/Nn3k2 w - - 0 1 illegal: No proof kernel
R2b2n1/KBRrqP1b/4P2P/2n2q2/2P2R1B/2pNn3/k1bQQP2/3Rr1N1 w - - 0 1 illegal: No proof kernel
K4bb1/2QBBpB1/kP1P3r/1NB4r/2PnQ1nP/1q1R4/3q3P/Nb3qR1 w - - 0 1 illegal: No proof kernel
brn3bB/Qp5b/PP2R3/2R2rq1/1NPQB1K1/P2N1n2/3P1R1R/rk2q3 w - - 0 1 illegal: Other
7K/bkn2PN1/1qN1Q3/p1P1b3/B5b1/RbPn1Pr1/1N2QBP1/N1r2Rb1 w - - 0 1 illegal: No proof kernel
1kb3r1/R7/3Knp2/QnRPrP2/1P1n4/1qRrN3/P1N1BQPR/n5Bb w - - 0 1 legal: proof: h4 b5 e4 a5 b4 d5 exd5 g5 hxg5 Bg7 bxa5 b4 c3 b3 Ba6 Bd4 Be2 Bc5 Bf1 Bb4 cxb4 Ra7 Qe2 Ra6 Qd1 Ra8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 Ke5 h5 f4 c4 d4 h4 f5 h3 g6 h2 a6 c3 a7 b2 g7 c2 Bb5 Nh6 Qe1 Rg8 Nc3 b1N Be2 Na3 Qf2 Nb5 Be3 c1N Nd1 Nb3 d6+ Kb7 d7 f6+ Ke6 Nf7 Nf3 Nc6 Rc1 Na1 Rc5 Ng5+ Kd5 e5 Ne1 e4 Nc2 Qe8 d8Q Ne6 Qa5 Qf7 Rc3 Rb8 a8R Rd8+ Kc4 Rd5 g8R Rd6 Rh8 Rd8 Re1 h1B Rh2 Rg8 Kd5 Rg3 Bc1 Rd3 Nde3 Qg8 Ra6 Ra8 Ra7+ Kb8 Bd2 Qg3 Rc1 Qf3 Kc4 Qh3 d5 Ncd4 Be1 Qg3 Qf3 Qh3 Bf2 Qg3 Bg1 Qh3 Ng4 e3 Qf2 Qf3 Bd1 e2 Nge3 Nd8 Kc5 e1R Ng4 Re5 Nge3 Na3 Kd6 N8e6 Rc5 Qg3 Ne1 Qf3 R1c3 Qh3 Bg4 Qf3 N1c2 Nab5+ Ke7 Qd1 Bh5 Qb1 Be2 Qb3 Rh5 Bb7 Ra6 Ra7 Rh2 Bc8+ Rc7 Bd7 R7c5 Rc7 Ra7 Rc8 Rh7 Rg8 Rh2 Na3 Kd6 Bc8 Rf7 Rd8+ Rd7 Rg8 Ra7 Nab5+
R1q2Rn1/r2QnnPp/r5B1/1NrQP2n/b2KP1QP/3P2N1/4Qb2/1kB5 w - - 0 1 legal: proof: f4 e5 a4 g5 fxg5 b5 axb5 d5 Nf3 e4 Ng1 e3 dxe3 d4 Nh3 d3 cxd3 Qd7 Ng1 Qd8 Kd2 Kd7 Kc3 Kd6 g4 Kc5 h4 a5 g6 f5 e4 f4 b3 a4 e5 a3 e4 f3 g7 a2 b6 f2 g5 Bd7 g6 Ra6 b7 Ba4 Bb2 Qc8 Qg4 Nc6 b8Q Nce7 Be2 f1N Qb7 Ne3 Bc1 Nc4 Na3 Nd6 Nb5 Nf7 Qd7 c6 Bh5 Ra7 Ne2 Ra6 Rb1 a1R Ng3 Ra3 Ra1 Ra7 Kd2 Kb4 Ke3 c5 Rf1 c4 Kd4 c3 Qbd5 c2 Rf4 Ngh6 g8Q Ra6 Bb2 c1N g7 Ra2 Bg6 Ra7 Q5e6 Ra6 Qg4 Ne2+ Ke3 Ra7 Bc1 Ra6 Rf5 Nf4 Kd4 Nh5 Rf6 Rc2 Qe2 Rc5 Qdg4 Nd8 Qd5 Nhg8 Qdd7 Nd5 Ra2 Be7 Rf8 Nf7 Ra3 Bg5 Ra2 Bd2 Ra1 Nde7 Ra3 Ka5 b4+ Kb6 Nc3 Qc7 Bb2 Bc2 Nb5 Ngf6 Rb3 Be1 Na7 Ra4 Rd8 Re8 Bc1 Nfg8 Qd5 Ra6 b5 Ka5 b6 Ka4 b7 Qd7 Rb8 Rec8 Ra8 R8c7 b8Q Qd8 Nb5 Rca7 Na3 Qf8 Rb7 Bb3 Rd7 Qc8 Nb5 Kb4 Qc7 Ba4 Qdc6 Kb3 Rd8 Bd2 Q6b7 Kc2 Qd5 Kb1 Qcd7 Be1 Rf8 Bf2+
QqRn4/Prr1RBq1/3R1K1n/q5P1/1b3PNn/Qp3PBR/1P4k1/3Nr3 w - - 0 1 illegal: No proof kernel
5Q2/b1BPpb1N/NP1Bb3/rn5P/1QqRB1R1/3bn3/P2bP2n/1KB2k2 w - - 0 1 illegal: No proof kernel
2B1q2b/P4K2/qB2R2q/P3p2N/1n1rnP1R/1R2PP2/k2nNQ1Q/2R2bn1 w - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 a5 bxa5 g5 g3 f5 h4 f4 gxf4 g4 Bg2 Ra6 Bh3 Rg6 Bf1 Rg5 hxg5 Qd6 Bb2 Qd7 Bc1 Qd8 d4 Kd7 Kd2 Kd6 Kd3 e5 Ke4 h5 a4 c5 g6 c4 g7 c3 a6 b4 f3 g3 a5 h4 a7 b3 Qc2 h3 Be3 h2 Bh3 b2 Nd2 b1N Nf1 g2 Ng3 Qe7 Nh5 Nd7 Kf5 Ba6 Kg6 Nc5 Bc8 Nf6 g8Q Nfe4 Qh7 Nbd2 Rc1 Nd3 Qa2 Qd8 Kf7 c2 Bf2 Nb4 Qh6+ Kc7 d6+ Kc6 d5+ Kb5 d7 Bg7 d6 Re8 Bb6 Bh8 Qb2 Ka4 e3 Bf1 Ne2 g1N Qh7 Qc7 Qh6 Qb8 d8R Re6 d7 Rd6 Re8 Rd4 d8R Qd6 Qa1+ Kb3 Re6 Qb8 Qc3+ Ka2 Rd5 Qa8 Rb5 Qb7+ Qc7 Qa6 Qc3 Nc6 Rb3 Nb4 Re1 c1Q Qc2+ Qb2 Rc1 Nd5 Qd1 Nb4 Qe1 Qa3 Qf2 Qa4 Qh7 Nh3 Rg1 h1Q Rg4 Ng1 Rh4 Qh2 Qg7 Qh3 Qgg3 Q4b5 Qgh2 Qc6 Re7 Qh6 Re8 Qd7+ Re7 Qdb5 Re6 Qe8+
NR6/1R1r1rPp/2n1r3/B1n1n2r/BB1PBP1P/1K2Pb2/n2b1k1N/1Q1Q4 w - - 0 1 illegal: No proof kernel
3b3N/2p1n3/r4kPP/p1P2q2/1NRbBr2/1K1QP1BP/1b2RR2/2Rr2Qn w - - 0 1 illegal: No proof kernel
1B3R1b/Ppr2NR1/p4r2/r4PPn/1P1bBP1R/1k3KRQ/1q3QN1/4nq2 w - - 0 1 illegal: No proof kernel
Q3BBk1/r1P1Q1q1/nP4q1/NbQp2K1/1r4b1/1Q1PpN2/P2RP3/1Rr2b2 w - - 0 2 illegal: No possible last move
1Rq2n1r/1p1p4/3P1rkN/3b4/1PBQP1KP/n1B1BnRP/Nq3B2/Q1r5 w - - 0 2 illegal: No proof kernel forced: wxLB
Qq1bQ3/2P4k/4RBR1/Prp2P2/B3P3/1Q1pr1q1/bbP2N1N/2KQnr2 w - - 0 1 illegal: No proof kernel
bN4Q1/1P4P1/b1nqB2R/R3r1Bp/1brPP1bP/1Q1Q1pb1/1K1QN2k/8 w - - 0 1 illegal: No proof kernel
2nr1Q1r/1B1NR3/3PN1Q1/1PBP1rNR/K3nPNr/2bn2pq/p5P1/k7 w - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 a4 g5 axb5 g4 h3 g3 exf5 Be6 Ra4 Bf7 Ra3 Bh5 Ra1 Bg4 hxg4 Bh6 Nc3 Bg7 Nb1 Bf8 f4 Kf7 d4 c5 Kd2 a5 Kc2 e5 Kb3 h5 g5 a4+ Ka3 h4 b4 e4 b6 h3 f6 e3 b5 c4+ d6 Ke6 b7 Kd5 g6 c3 f7 h2 g7 c2 Nd2 e2 Nb3 Kc4 Nf3 Kc3 Ng5 e1N Qh5 Nc6 b8N Nf6 g8N Qc8 Qg6 Qh3 Be3 c1R Bd3 Bg7 f8Q Ne7 Be4 Nc8 Nc5 Nd3 Bb7 Ne4 Nbd7 Rd1 Re1 h1R Nh6 Rh2 Nce6 Be5 Ka2 a3 Ng4 Kc2 Rh1 Re1 d5 Bc3 Rd1 Rh4 Rd2+ Kc1 Kb3 Kb1 Bb6 a2 Re2 Ka1 Bf2 Nb6 Bd4 Rd8 Bc5 Nc8 Ka4 Rh8 Qgf6 Qh5 Qg6 Rh4 Nge5 Qg4 Rh2 Qh3 Ng4 R4h7 Rh1 Rf7 Rh2 Rh1 Re3 Rf5 Re2 Qh6 Rh5 Rh4 Nc7 Rh1 Rh4 Nd2 Re7 Ne4 Nce6 Qh5 Ngf6 Qg4 Rhh7 Rh4 Rh5 Qh3 Ng4 Bg7 Nh2 Be5 Ng4 Bc3
3RB3/2B4R/2p1Prrr/nPP2Q1r/k1nN4/P1KPq1NN/6p1/2nN1b1Q w - - 0 1 illegal: No proof kernel
6k1/1q1Q1rBn/2q2q2/p1Q1P1Np/RNPNR3/1P1qnP1b/P2N1K2/1B2b3 w - - 0 1 illegal: No possible last move, all moves rejected
1qQrB1nR/2Qn1pN1/qPp1B2B/bRP1Bp1P/P7/6b1/5PK1/1N2kr2 w - - 0 1 illegal: Other
q1RQR1Q1/q1RPB3/1pNb3N/r1pP2Kn/p1k1BP2/2P1r3/2b1R2P/5q2 w - - 0 1 illegal: No proof kernel
3QB1kB/Rp1p3n/B1bPP2p/B3r3/1PqKR3/nP3N2/1b1Q1nqP/6N1 w - - 0 3 illegal: No possible last move
2qrR2r/1pQp4/P1NKP2p/2B2B1P/1Q2r3/rQ1n3P/R2QP1N1/b2n3k w - - 0 1 illegal: No proof kernel forced: wxLB
Q2nr1n1/B6B/P1r3Q1/N6b/k1p2p2/NR1np1PP/nBP2P2/B1R2b1K w - - 1 2 illegal: No extended proof kernel
2BB1qQ1/2NqpBKn/1p1q4/4Q2P/1P2Rbn1/5Pp1/qN1bP1P1/1R4Bk w - - 1 3 illegal: Other
2bnq2n/bR1P1QpR/B3p3/3P3P/1Q1q2PN/1B1r2P1/5pp1/k1K2NBB w - - 0 1 illegal: Other
1N4BN/QP1bPpkr/p1PP4/4r2p/n1rNRbpP/1R2B1N1/4n3/3Q3K w - - 0 1 illegal: No proof kernel
b1Qn4/1QNKR1np/3r1k2/p4b1P/r2R3p/N1b1P1pP/Q1BQ2PP/6B1 w - - 0 3 illegal: Other
1NR1nrQB/Pbn4r/2b5/1QQp1k2/3P1P2/3qn1p1/1NPQBbPn/4K1R1 w - - 0 1 illegal: No possible last move
5RN1/K1b5/1QPRpn1B/BP2PQ2/r2Pr1np/3b2n1/1n3qBP/1kN1B2r w - - 0 1 illegal: No proof kernel
3rN1R1/p2Q1B2/R2p4/1QQn2bK/PQ1P1Pb1/P1br3P/1q2q2B/Nknb4 w - - 0 1 illegal: No possible last move
KrR5/bN1BPn1P/QN5b/Q1p1qbp1/5p1R/B3NP1P/2P2n1k/N2q1r2 w - - 0 1 illegal: No possible last move
1b2Q3/2Kbb1bP/QQ1NBpr1/1PP3p1/N1n2P2/QRnpR1P1/3B4/3r1kq1 w - - 0 1 illegal: No proof kernel
r2r4/K2Q1bnk/pB2P2N/1p1bR1P1/1Qp5/P1P1b2q/1nP1B1b1/N1BB3R w - - 0 1 illegal: No proof kernel
k2q1R2/2Pp2b1/r2P2Pp/N1pr1KR1/b1QB2pP/Rn1B4/1PR1n3/2Q1n1N1 w - - 0 1 illegal: No proof kernel
3n4/knRP1R1r/2PNP3/4BP1K/Br1r1b1N/1Pp2R2/b1Pp4/3nNQ2 w - - 0 1 illegal: No proof kernel
2nR3b/Rr1b1B2/Nrq4K/2PP2b1/RPb3q1/1Bk2PB1/P1n1P3/1Q1nN3 w - - 0 1 illegal: No proof kernel
1rN2Nb1/1bR1Pq2/2n2q2/3p1BQ1/2R1NP1P/P2P2B1/Pr1KnR2/rk3q2 w - - 0 1 illegal: No proof kernel
8/1qPP3r/4NBr1/1p1qRbbN/1P1nP1R1/2RnP1Nb/KP2Bk2/1qQ5 w - - 0 1 illegal: No possible last move
1n2knRK/rP6/5P2/2Npb1R1/4q3/QRpP2PN/PPBr1N1n/4B1rb w - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 b5 c4 a4 cxb5 a3 Qa4 Bh6 Qxa3 Bg7 Qa7 Bf8 Ke2 h5 Kd3 c5 Ke4 e5 f4 d6 b6 c4 g6 h4 f6 h3 b7 h2 f7+ Kd7 Kf5 d5 g7 e4 Kg6 e3 f5 e2 f6 e1N Nc3 Rh4 Qa3 Ra6 Bd3 Rd4 Kh7 Qe7 Bc2 Qe4+ Kh8 Ne7 g8R Nf3 Nd1 Ra7 Nf2 c3 Ngh3 Bh6 f8N+ Ke8 Nd7+ Bf8 Rd1 h1R Nc5 Bf5 g3 Nh2 d3 Rg1 Rf1 Bg4 Re1 Bf3 Bd2 Bh1 Rf1 Rda4 Rae1 R4a6 Re3 Re6 Be1 Re5 Rf3 Re6 Rf5 Ng6+ Kh7 Re5 Rg5 Rf5 Ng4 Re5 Rf4 Rf5 Ngf2 Re5 Rg7 Bd6 Rg8+ Nf8+ Kh8 Rf5 Rh4 Be5 Rhg4 Rf3 Rh4 Re3 Rhg4 Re2 Rh4 Qf3 Rb4 Qe4 Rb3 Rd2
N1Qb4/P2nNp2/K1P1q3/3BP2b/NbRBn1P1/1q3r1P/2r1Pp1k/3R1R2 w - - 0 1 illegal: Other
2Bbqrr1/P3k2P/1np3Pr/1R1Pn3/Bp4NK/PP2BNN1/R3pn2/4Q3 w - - 0 1 illegal: No possible last move
B1R1r1n1/1QBp1q1k/p2R3r/P2P4/3Pn1K1/1P2r3/PnpRPb2/Nb2N2N w - - 0 1 illegal: Other
RBn5/1P1B1b2/1b4Nb/1P1RQ2r/p4KPp/Pq2p1NP/2N2k1P/2Bn1q1r w - - 0 1 illegal: No proof kernel
1k2K2b/1p2r1qp/PqP1R2N/1P5P/b3BRpB/3Rr1PP/3n4/1Q1NrBn1 w - - 0 3 illegal: No proof kernel
4Kbnr/2r2p2/p1BN2N1/3P3P/1B2b2B/R2b1pPk/P1Q1RPbP/1qn1N3 w - - 0 1 illegal: Other
1nBN4/q1P1QR1B/2RBK2q/rpp4N/bPP2P2/2Rp4/2PP2rk/5nnq w - - 0 1 illegal: Other
q7/1NB4P/1pp1np1B/1RP2Npk/1QP2Pr1/2P2BPr/3rNb2/2bRn1K1 w - - 2 3 illegal: No possible last move
1B5b/1P1k1q2/pp2npPp/PR1P2r1/N1bRr1BP/1N1P1n1r/1K1Q2B1/4N3 w - - 0 1 illegal: No proof kernel
3r4/2b2r1p/p1b1P2n/1pB3RP/PPP5/2K2rPN/B1NrRRNp/3k1n1Q w - - 0 1 illegal: Other
n1R3b1/1r1BP1pN/1rpNp3/QRNp1P2/2RP1P1B/1pK2rP1/qP2k2b/8 w - - 0 1 illegal: No proof kernel
1QN1b1BK/3P1qRQ/2n4n/2N2r2/bQP1Pb2/PR6/1PkBP2q/4n1b1 w - - 0 1 illegal: No proof kernel
3R3n/2PPN2r/PQnR1r2/2n1P3/rRb2BB1/2PP3K/6r1/n2Q1nkN w - - 0 1 illegal: No proof kernel
QB3b1b/4NPb1/1qP2R2/Pn1NRB1P/P1Q3b1/3qnRq1/PK6/q6k w - - 0 1 illegal: No proof kernel
2bN3R/3B1r1P/p1P1nP1R/2P1kPbb/4P2N/n5r1/q2pQ1QB/4Q2K w - - 0 1 legal: proof: b4 c5 bxc5 b5 g4 h5 gxh5 f5 a4 e5 e3 b4 d3 f4 exf4 e4 dxe4 Qb6 Nf3 Nh6 Ng1 Qb5 axb5 Ng8 h4 Kf7 c4 Ke6 f5+ Kf6 f4 d5 Kf2 g5 Kg2 a6 c6 g4 h6 g3 b6 d4 c5 d3 h5 b3 b7 b2 h7 Bd6 h6 Bf8 Nf3 Ra7 Nbd2 b1B Nc4 Bd6 Na5 Nd7 b8Q Bc2 Nh4 Ne5 Qb1 Ne7 Nb7 Nc4 Qe2 Ng6 Nd8 Rg8 h8Q+ Rgg7 h7 Na3 Qg8 Raf7 Rh3 Bc7 Kh1 Nf8 Bb2+ Be5 Qbe1 d2 Rb1 Ne6 Bd4 Ba4 Bg1 Bd1 Bh2 Bd6 Rb8 Be7 Qg2 Rg5 Bc4 Bh5 Qge2 Nd4 Be6 g2+ Kg1 Rgg7 Bd7 Ne6 Ng6 Bf3 Rh6 Bh5 Nh4+ Bg6 Kf2 g1Q+ Kf3 Qd4 Kg2 Qc4 Kh1 Qa2 Ra8 Bd6 Rb8 Be5 Ra8 Bd4 Rb8 Be3 Ra8 Ke7 Rb8 Bh5 Ra8 Rg3 Rb8 Rh3 Qgg2 Rg3 f6+ Kf8 Qd3 Bb7 Qde2 Re7 Rc8 Nd4 Ne6+ Kf7 Rh8 Bc8 Nf8 Nb3 Nfg6 Nd4 Be8+ Ke6 Ne5 Rb7 Nf7 Ra7 Nd6 Rc7 f5+ Ke5 Nb7 Ne6 Nd8 Rf7 Bd7 Bg5
Q1nQ1r1B/1Br2P2/2R5/P1N1P3/2N2bPR/1bPQ1r1K/pp2n1P1/5q1k w - - 0 1 illegal: No proof kernel
BqB4q/1N3Pkq/3Rqp2/rpB1R3/3PP3/1NP1Q1KP/1P1Q4/b2nr3 w - - 0 1 illegal: No proof kernel
1QN1nqBR/2R2PPR/N2qP3/6p1/2p3n1/b2p3n/P3PPQ1/2Kbk1B1 w - - 0 1 legal: proof: d4 a5 g4 b5 b4 f5 bxa5 e5 gxf5 b4 dxe5 Ba6 c4 Bc8 h4 g5 h5 Ra6 Qd3 Rg6 hxg6 h5 Qd1 Rh7 Rh3 Re7 Rh1 Re6 Bh3 Rb6 Bf1 Rb5 cxb5 Ba6 Qd6 Bb7 Qd1 Bc8 Kd2 Ke7 b6 c5 a6 d5 f6+ Ke6 g7 c4 b7 b3 f7 d4 a7 Kd5 a8R b2 e6 h4 Nh3 d3 Bg2+ Kd4 Qg1 Qd6 Ra7 Nc6 b8Q Ne5 Na3 b1Q Rc7 Bd7 Be4 Ng4 Qg2 Ba4 Nf4 h3 Bh7 h2 Nd5 N8f6 Nb6 Bd1 Bg8 Ne8 Nc8 Qbb6 Rb1 Qbc5 Rb4 Be7 Ra4 Bf8 Ra8 Be7 Rf1 h1N Nb5+ Ke5 Ba3 Ng3 Kc1 Nh5 Rh1 Nf4 Rh7 Nh3 Bb4 Bf6 Bd2 Qf8 Be3 Be7 Bd2 Qd6 Bf4+ Kf6 Bh2 Kf5 Qg3 Ke4 Bg1 Kd5 Qg2+ Ke5 Na3 Kd4 Nc2+ Kc3 Nb4 Ne3 Kb1 Kd2 Na6 Ke1 Kc1 Ng4 Raa7 Qd4 Rab7 Bb4 Rb5 Qdd6 Rd5 Bc5 Rd4 Nh6 Rh4 Ng4 Rh8 Bb4 R4h7 Ba3+
QK1R2Q1/3p4/2P4k/PrN2n2/1B2pP1p/1PbB1NpP/1n2bBP1/3Rr3 w - - 0 1 illegal: No possible last move
4b3/3rN2k/B1P2Qnq/B2PPNqP/1n2bN1R/5Q2/r1RP1P1n/3Kbr2 w - - 0 1 illegal: No proof kernel
1b1KBn2/1nB1QPRP/2B5/P1nr1P2/P3n2P/q1q1k2b/2QNN2q/4Rr2 w - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 Ke4 f4 d5 h4 e5 c4 g5 a4 g4 c6 d4 c5 d3 f6 g3 c7 d2 Kb6 g2 h6 Nd7+ Kb5 Qe7 h7 Nh6 c6 Nf5 Bb2 Nd6+ Kb4 b5 Qg4 d1N Be2 Nc3 Qh5 Ke3 Qg6 Nce4 Bf3 Nec5 Qc2 e4 Ne2 g1Q Nd2 Qh2 Bg2 Bg7 Ba3 Rd8 Rhg1 Nf8 Rae1 Bh3 c8B Rb8 f7 Be5 c7 Rd7 f5 Bf4 Kc3 b4+ Kb2 b3 Kc3 Rd8 Bd7 b2 c8Q Bg3 Bb5 b1N+ Kb4 Nc3 Qc7 Rbc8 Be8 Bf4 Bc1 Rb8+ Ka3 Rb1 Bb2 Rd7 Kb4 Be5 Bf3 Ra1 Rg7 Bg3 Rg1 Rf1 Rg4 Ndb5 Nc1 Rf2 Rf1 Nce6+ Kc4 Qa3 Ndb3 Nc5 Rg7 Bd6 Qd8 Kf4 Qe7 e3 Bc6 Bb8 Nd2 Rd5 Rfg1 N3e4 Bd4 Nb7 Bb6 Nbc5 Rd1 Rf1 Bd8 Na7 Bb6 Nc8 Kb5 Rf3 Bd8 Ncd6+ Kb6 Rf2 Bc7 Rf1 Bd8 Ba7+ Kc7 e2 Nc4 e1Q Ne2+ Kf3 Rb1 Qec3 Nd2+ Ke3 Re1 Nb5+ Kc8 Bb8 Bc7 Nd6+ Kd8 Ndb7+
5B2/1PKrQbPP/3PqB2/Q1NB2n1/2bRrP1r/5bPq/N5k1/n2Rb3 w - - 0 1 illegal: No proof kernel
1brqn3/Nn1K4/r3P3/1P1N2nP/P2QB1R1/1nPnQ2N/1B1nRP1k/1b6 w - - 0 1 illegal: No proof kernel
3K4/P1PP1r1r/4R2q/b2k2N1/1Pb1RnP1/r1B4r/1Prr1QBB/Q3N2n w - - 0 1 illegal: No proof kernel
R3b3/BbK4r/1p1PP1B1/3Q4/P2RbP2/2b1r1Pk/bnPq1BN1/1NQn4 w - - 0 1 illegal: No proof kernel
n1r5/K1q1R1r1/4RPP1/P1N2rPQ/1NbP4/k5Nb/1pPrQ1B1/2b1B2n w - - 0 1 illegal: No proof kernel
1B1R1b2/QBn1bb1P/6R1/Pq1PRP1r/N2b1Q2/1Pp2N2/P5Kr/1kq3n1 w - - 0 1 illegal: No proof kernel
2n2B1k/N2b2R1/r2nNq1P/PbbB1b2/1P2R3/q1P1p3/P1Q1Pb2/RQ5K w - - 0 1 illegal: No proof kernel
B2R3q/B4Kb1/1q1P1nNP/k2r2P1/2PpQ3/3Pn1qB/2R1r1QP/2q1rN2 w - - 0 1 illegal: No proof kernel
4R3/3P1pP1/Q1n2KPb/bQq1Q1rN/2BPNP2/1r2b2p/1r1R1P2/B4nk1 w - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Qd6 hxg5 Bf3 exf3 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 h5 Kf5 c5 d4 e5 b4 a5 g4 a4 f4 c4 g6 a3 g5 a2 b6 c3 b7 h4 b5 e4 b6 h3 Qe2 e3 Bg2 c2 Qc4 e2 Nc3 e1B Nge2 Qe7 Qa6 Rh5 Ng3 Nc6 Bf1 Bh6 g7 Nf6 Bc4 Ng4 Bb2 Rb8 Rd1 a1R Rd2 Ra3 Ba1 c1B Rf1 Rb3 Nce4+ Kd7 d6 Nh2 Rg1 Nf1 Rh1 Qf8 Kf6 Rb2 g6 Rg5 Nh5 Rb3 Ra2 Ba5 Rg1 Be3 Rd2 Na7 Rh1 Kc6 d7 Qc5 Rg1 Ng3 Re1 Nf1 Bb5+ Kd5 Ree2 Ra8 b8Q Nc6 b7 Rb2 Qc7 Ra7 b8Q Rb7 Bd3 R7b3 Qbb5 Nb8 Neg3 Nc6 Rd1 Bc1 Re8 Bcd2 Be2 Be3 Rd2 Ne5 Nh1 Ke4 Bc4 Kf3 N1g3 Kg2 Ne4 Nc6 Qe5 Kg1
b4Q2/NNQ1q3/pBBPP1R1/3PRpR1/2P5/3rb1q1/PP1n1b1n/K3k1r1 w - - 0 1 illegal: No proof kernel
4rB2/RBb1Q1p1/Pq2b1K1/6PR/qrPP1P1p/1QN5/P3qRNk/1nn5 w - - 0 1 illegal: No proof kernel
b1B1n2Q/3Kr2p/qp1N2PP/1r1P1q1P/N1P1Q3/1R6/kPBR2q1/B1r3b1 w - - 0 2 illegal: Other
1rR1Qb2/Pk1p2n1/2b1PPP1/1r1p1R1p/NK1n3b/B4PN1/4QP2/q1N4B w - - 0 1 illegal: Other
1Q6/qppP1n1B/1r6/1PR2P1P/1Q2qN1B/3Ppk1n/RQP1b2q/NbK5 w - - 1 2 illegal: No proof kernel
6BB/3Pp1qQ/4b1N1/1R3bpR/PNpbQr2/1P2P2P/BP1nr2K/2kb4 w - - 0 1 illegal: No proof kernel
N2QK1b1/pn2N2n/2qp1BRq/PP3pp1/BQR3P1/1P3b2/1P1PQ3/1k3r2 w - - 1 3 illegal: Other
Q2nR2R/1Q2p3/rP3P1r/3pR1b1/1pBPP2P/2r1bp2/PkN3K1/n1N1B3 w - - 0 2 illegal: No possible last move, all moves rejected
q5QR/2k1pP1n/B1b1PP2/NqQ1b1P1/3r1pPB/p3bK1R/1Q2pP2/N7 w - - 0 1 illegal: Other
B5KQ/p5P1/1Pp3P1/kNN3rn/Pn1p1b1P/B1R1pp2/1q3P1b/R2Q1Q2 w - - 1 2 illegal: No proof kernel
BBn1Q2q/pqp1RPN1/b4Pb1/5Rr1/Q4q2/PKPkB2P/5PN1/3rbn2 w - - 0 1 illegal: No proof kernel
k1q1n2n/br2BNr1/2nbQPP1/NR6/6p1/p3R1PP/P1N1bPB1/K2Q1n2 w - - 0 1 illegal: Other
3r1BBk/Nn1rpnb1/1PPPR2r/3qP1Pp/1KrR1N2/7P/6bQ/5nQR w - - 0 1 illegal: No proof kernel
2B2K2/Q2Qp2R/n4R1P/N2prN1q/P1R1bP2/n1b1Pr1P/1nbP2k1/b5B1 w - - 0 1 illegal: No proof kernel
1B2Kb2/Q2pRRqr/B2r2PR/2N2p1p/3PnP1k/3rnP2/1b1NP2P/3Q2q1 w - - 2 3 illegal: No proof kernel
Rb4k1/PR6/1Pp1p1K1/RQP1Pb1B/2n1r1P1/bNN2P1n/4p1QB/b4rq1 w - - 0 1 illegal: Other
7r/6PQ/R1N1KPP1/RpN2Q2/r3p2p/4k1nP/q1PpPqb1/B1b2nQB w - - 0 1 illegal: No proof kernel
3r4/1nbp1N1Q/2pn1QNP/3nBr2/BP1R2PN/pbP4p/P2Pkp1K/2R5 w - - 0 1 illegal: No proof kernel
2RBB3/P1Pqb3/1q6/nP4R1/P2nQN2/3RK1r1/n1Pp3P/nr2RNk1 w - - 0 1 illegal: No proof kernel
rn2k3/B1K1b2Q/PB1R2r1/1n2P1Rb/qN3P2/3P1rn1/1pBP3P/3q2BN w - - 0 1 illegal: No proof kernel
b2B1N2/8/Pr1b4/q2qPPBq/RPPBPQR1/KnnB4/3r1p2/N2k3n w - - 0 1 illegal: No proof kernel
r3N1RR/r1P3n1/1Q1bP3/2Np1P1B/2kB4/PbPr2bK/1qn1P1rN/5N2 w - - 0 1 illegal: No proof kernel
1B1Q1b1K/2Rn1k2/1Nbrp3/1PB1Pb2/P7/1nPN1P1P/1n1r3R/Bnr2B2 w - - 0 1 illegal: No proof kernel
B4N1b/BKPp2rP/1n6/pr1R1rN1/2P1B1n1/Pk5b/3P1Pq1/2Qn1R1B w - - 0 1 legal: proof: e4 h5 Qxh5 c5 b4 g6 bxc5 f5 exf5 Nf6 fxg6 Ng8 Qh4 Nc6 Qh7 Nb8 Ke2 e5 Kd3 b5 g4 a5 h4 e4+ Kd4 e3 c4 b4 c6 e2 g7 Ke7 Kc5 e1N g5 b3 a3 b2 c7 Ke6+ Kb6 Nd3 g6 Kd6 h5 Qe7 h6 Bb7 Bg2 Qe5 Ne2 Qh2 Nf4 Na6 Be4 Nac5 Nc3 b1R+ Bb2 Ke5 Ne6 Nf6 g8B Ng4 g7 Qg2 Qg6 Be7 h7 Bf6 Nf8 Kd4 Bgd5 Rg8 Rh5 Re8 Rf5 Re5 Qh5 Ba8 Qh1 Na4+ Ka7 Bb7 Qc1 Nb6 Rh5 Rf5 Bc6 Ba6 Ba8 Bb7 Rg5 Bd5 Kb8 Be6 Kb7 Nb4 Rh5 N4d5 Rg5 Nde3 Rh5 Rh8 g8B Nd1 Bf7 Rg8 Bg6 Qg3 Bh1 Rg7 Ne4+ Kd3 Bd4 Rbb5 Rb1 Qg2 Rg5 Rf4 Rd5 Rf3 Ng5+ Rf5 Qb2 Be5 Qa1 Kc2 Be3 Nc3 Rf1 Nd1 Qc1+ Kb3 Bd4 Rg8 Be3 Bh8 Bc5 Rg7 Bd4 Rf4 Be4 Rf5 Ka6 Nc8 Ba7 Nb6 Kb7 Nge3 Rc5 Rf4 Rd5 Bh3 Ka6 Ng4 Kb7 Rf5
3kB3/N2p2b1/rP1B1R1P/1rQ1P3/pnbRq1PP/r3N3/4n2P/K3Rr1R w - - 0 1 illegal: Other
BBN1N2b/P1q1Pp2/BK1PP1rn/1bB1rP2/6rr/1p1Q4/3P1R2/2k3nR w - - 0 1 illegal: No proof kernel
B2R2BB/P3kbpb/B2rN2p/b4b1P/NP1n2RP/1KP2br1/6P1/r4Q2 w - - 0 1 illegal: Other
4r1RN/1Bn1RpK1/1rpkbN1R/Pp5q/P1Pr4/2P1BP2/4nP2/1b4RQ w - - 0 1 legal: proof: c4 h5 g4 a5 gxh5 e6 b4 Qf6 bxa5 Qf3 exf3 Ba3 Be2 Bb2 Bf1 Bc3 dxc3 Ke7 Bh6 Kd8 Bc1 Ke8 Ke2 Ke7 Kd3 d5 Kd4 g5 Ke5 b5 a4 d4 h4 c6 h6 d3 h5 d2 h7 g4 h6 g3 Qc2 d1B Qf5 g2 Qh3 Bc2 Nd2 Nf6 Ne2 g1Q Ne4 Qh2+ Nf4 Nd5 Rg1 Rd8 h8R Bb1 h7 Na6 Be3 Nac7 Rhg8 Ra6 h8R Rb6 Nf6 Re8 Qh7 Qh6 Bh3 Qh5+ Bf5 Bd7 Ra2 Bc8 Re2 Bd7 Kd4 Kd6 Ng6 Nf4 Qh6 Bc8 Rh7 Rd8 Nh8 Re8 Qg7 Rd8 Rh6 Rd7 Qh7 Rd8 Rc2 e5+ Ke4 Ne2 Bh3 Bb7 Bc8 Ba6 Bb7 Re8 Ba8 Bc8 Bb7 Be6 Qf5 Rc8 Qh3 Rd8 Qh1 Ng3+ Kd3 e4+ Kd4 Re8 Re2 Rd8 Bd2 e3 Ree1 e2 Bg5 Ke7+ Ke5 Rd3 Nh7+ Kd7 Kf6 Kd6 Be3 Rd1 Kg7 Rd4 Ref1 e1R Nf6 Re2 Re1 Bef5 Bc1 Re8 Re7 Be6 Be3 Ne2
RB2r2n/pqrp1b2/P1PB1BB1/4b3/P1b2P1N/1PP1nK1p/4Q3/2k3NR w - - 0 1 illegal: Other
2b3bk/PPqQ1Pb1/3B1B2/PnB1R2p/3p2BP/6r1/p2Pr2N/K1N2Rb1 w - - 1 2 illegal: No proof kernel
2b1BB2/pP5r/Pb2N1bP/k4n2/1p1BBP1K/2P3N1/1p2Q1Pp/n1rR3R w - - 0 1 illegal: Other
B4kB1/B1P1p2P/2b1PpQ1/2BPb1bn/5P1K/n1Pb4/N1rNb1r1/1qR2R2 w - - 0 1 illegal: No proof kernel
rq5b/Qb2R1pp/P1PNP2P/NNBBpPP1/2n5/4R3/1nk1nK1b/1N3r2 w - - 0 1 illegal: Other
3n3k/Pn1pn1qB/pq1Q4/2P1RRbb/P1NP4/P2p3N/KB1P1B2/1rB1r3 w - - 1 2 illegal: Other
1R2R2q/1pk4P/p3Br2/NR1p1Pbr/PQ1R4/1pN1P3/bPnP3K/1nB1n3 w - - 1 3 illegal: Other
B1N3qn/PPK4P/1B2qP2/RRnqB1n1/Q5rr/PN2k2b/P1P4r/4b3 w - - 0 1 illegal: Other
1B3q2/1P4rN/RPQ1n1qk/2nPK1nP/P2r3P/4bB2/RNb1P3/1r2Br2 w - - 0 1 illegal: No proof kernel
R1n1b3/1rB2n2/P1pP4/r2Pr1PB/1Pbq1k1P/N7/1NPRb2b/Q2K2R1 w - - 0 1 illegal: No proof kernel
2RR4/2P3rN/2QPrP1p/Bb1P2P1/2bPq1Nn/4n2K/PkrN1pB1/6b1 w - - 0 1 illegal: No proof kernel
4Br2/1PP1Bn2/NR3Qnp/Bn1RP1p1/q6P/3K2k1/1PbPr1P1/b2Nb3 w - - 0 1 illegal: Other
Rb3r1q/PKN3R1/P3P3/P1n2krn/1B1Qb2R/qBp1PPrp/5P2/7N w - - 0 1 illegal: Other
3br3/rN1nB1Pn/q1P3rP/1pRN1P2/3QbPrp/1Pq4P/4R1K1/2kB3R w - - 0 1 illegal: Other
7B/pP1rq2Q/1bPPk1P1/n4Rp1/P5Pn/rbN2pRP/b5BK/N1Rr4 w - - 0 1 illegal: No proof kernel
Qn2bNNr/1r1PnRnb/1p1k3P/4ppB1/2B5/P3Pqp1/RPK1PP2/1B6 w - - 2 3 illegal: No proof kernel
8/P2QPb2/PPQN3p/5N1b/1qq2KPq/1k1rb2P/Rn3P2/r1R1nBB1 w - - 0 1 illegal: No proof kernel
2rQ4/pPR2r1K/bn1QPq1B/1PnB4/1r2P3/1P1nN3/PP1kN2R/b1n5 w - - 0 1 illegal: Other
1q5k/pN2pB1P/3Pn1rp/2P1P1RN/P1b1P1Q1/BQ4P1/1K2q3/Rr3rn1 w - - 0 2 illegal: No possible last move
Rb4k1/P1Rn2n1/5P2/p2PnQP1/5pq1/1pBBPP1K/pPQ1r3/3Nb2N w - - 0 2 illegal: Other
2K1b1b1/qN2N3/B3P3/1nP1kp2/P2Rp2B/1P2PPqr/3n1PRb/1QQ2r1b w - - 0 1 illegal: No proof kernel
1bK2Q1R/1PbN1p1B/R1pP3P/Br2N3/1q1nPPP1/2PQ4/5brn/2kbq3 w - - 0 1 illegal: No proof kernel
BR1bK2r/6k1/2Rb4/5rPp/4QNqb/1rqN1R1q/n1qp2bN/Q2n4 w - h6 0 1 illegal: Lossy FEN conversion
2Q1b1B1/1KB1r3/3R4/b2bqpP1/5R1b/R2N1R1n/1p1q1r1p/1qn1qBk1 w - f6 0 1 illegal: Lossy FEN conversion
4n2N/Qr1q2q1/b2pqpQ1/2pP1R1r/2PRb1B1/n3kB2/2Q3qb/2Kn4 w - c6 0 1 legal: proof: f4 e5 a4 exf4 b4 g5 h4 gxh4 Ra3 a5 Ra2 axb4 Nc3 bxc3 Bb2 cxb2 Ra3 Ne7 Ra1 Ng8 e4 Ke7 c4 Ke6 g4 Ke5 g5 Kd4 g6 b1B a5 b5 d3 h5 Kd2 b4 a6 f3 e5 b3 a7 f2 g7 h3 e6 b2 e7 h4 e8Q h2 Bh3 f1Q Bg4 h3 Be6 Nh6 g8B Ba6 Bd5 Bd6 Qde1 Nf5 Qc1 Qg2+ Kd1 Ne3+ Ke1 Qg7 Kd2 Rh5 Ra3 Nd1 Qe1 Qe8 Bc6 Qe6 Bf3 Be5 Qe2 d6 Qc2 Nd7 Ra5 Nf6 Qg2 Ne8 Qg6 Rb8 a8Q f6 Qa7+ Rb6 Rc5 Rb7 Bf7 Qd7 Be6 Bg3 Beg4 Be5 Ke1 Ke3 Ne2 Qe6 Rf1 h1Q d4 h2 Nf4 Qg2 Ra5 h1Q Rd5 Qhh3 Rf2 Ba2 Rd2 b1N Ra5 Nf2 Rb5 Na3 Rd5 Nd3+ Kd1 Nf2+ Kc1 Bb1 Qa2 Qhg3 Qf5 Qed7 Rb5 Nd1 Ng6 Qf4 Nh8 Bc2 Qg6 Be4 Qc2 Qff5 Ra5 Qfe6 Rb5 Bf4 Rf5 Bh2 d5+ Rb6 Rd4 Rb2 Rf4 Rb7 Rf5 c5
1BqNnq2/n2p3P/kBRRr1Rq/4Pp2/2bn1b2/2b5/5RR1/2Kbn3 w - f6 0 1 illegal: Lossy FEN conversion
b1B2q1n/1R2pBN1/4n1p1/1Ppk1q1r/r1n2p2/P1R1b2B/K2n1Bn1/4B3 w - c6 0 1 illegal: No possible last move, all moves rejected
3b2bN/b1rN4/N7/p1p2PPp/2n1Rq2/b2R1NrR/rp5K/r1B1nk2 w - h6 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 c5 fxe4 b5 d6 Qc2 dxc5 Qb3 c4 a4 Kd7 b6 Bh6 Be2 Bg5 Bg4+ Ke8 Qb4 axb4 a5 Ra7 a6 Ra8 a7 Bh6 Bd7+ Kf7 Bb5 Bf8 Ba6 bxa6 Ra2 Ke8 Ra5 Bb7 Ra1 Bc8 Kf1 Kf7 d4 Kf6 g4 e5 Kg2 e3 f4 h3+ Kh2 c3 b7 b3 d5 b2 f5 Kg5 d6 Kh4 d7 e4 Ra2 e2 Ra4 e1B Ra5 e3 Rd5 e2 Rd6 c2 Rd2 Bf2 Rd4 e1B Re4 Nc6 b8R Ba5 Ra4 Ba3 Nd2 Nge7 Re4 Nb4 Nc4 Rg8 Bf4 c1R Re6 Ned5 Rf6 Nb6 Rf8 Nd3 Be5 Qg5 d8N Ne1 Re8 Be6 Nd2 Nc4 Rb3 Qf4+ Rg3 c6 Nf7 Bd8 Nb3 Rg6 Nh8 Bg8 Bc7 Ra1 Re2 a5 Nc5 Ra2 Re8 Rc8 a8N Bd4 Be5 Rc7 Na6 Ba7 Nb6 c5 Nd7 Rg7 Ne2 Rg6 Nd4 Rg5 Kg1 Rg7 Rd3 Rg6 Nf3+ Kg3 Bd4 Rg5 Re4 h2+ Kf1 Kh3 Be3 Rg7 Bc1 Rg6 Rg1 h1R Kf2 Rb6 g5 Rb3 Rg4 Rf1+ Ke2 Rc3 Rh4+ Kg2 Rh3 Nc2 Be3 Rfa1 Bc1 Ne1 Rh4 Kg3 Kf1 Rb3 Kg1 Rc3 Kh1 Kf2 Rh3 Kf1 Bd2 Rc2 Be3 Rg2 Bc1 Rg3 Kh2 h5
1r6/b1Nq4/r2Rrk2/Pp3B2/1Kp4p/r2bP3/NR2Bn1P/nbrrQ3 w - b6 0 1 legal: proof: d4 e5 c4 exd4 f4 a5 b4 axb4 c5 g5 c6 gxf4 Bd2 b3 Kf2 Nxc6 Ba5 b2 Ke1 Nb8 Bb4 Bh6 Bf8 Bxf8 Kd2 Ke7 g4 c5 a4 f5 g5 h5 g6 d5 a5 h4 g7 f3 e3 d3 Kc3 d4+ Kb3 d2 Bg2 f4 Ka4 f2 Ka3 f1R Nf3 c4 Rg1 d3 Ra2 Nf6 g8B Nbd7 Rh1 Nc5 Bf7 Ra6 Bg6 Qd7 Qa4 d1R Nc3 b1B Ng1 f3 Qc6 f2 Nge2 d2 Qb6 Nfe4 Bh7 Rc1 Bf3 d1R Bg4 Nb3 Na4 Na1 Qb4+ Kf6 Nf4 Bc5 Bhf5 Ba7 Qe1 Re8 Rc2 Ree6 Rb2 Rd3+ Kb4 Ra3 Nc3 Bd3 Qd2 Rfd1 Be2 f1R Qe1 Nf2 Na2 Bb1 Rg1 Bd3 Rg7 Rg1 Re7 Rg8 Nd5+ Kg5 Qf1 Red6 Re6 Bb1 Be4 Qh7 Rf6 Bf5 Bg2 Qd7 Nc7 Rb8 Bh3 Bfd3 Bf5 Rdc6 Qe1 Rd6 Rf8 Rdc6 Re8 Kf6 Re4 Rd6 Rd4 Re6 Rd6 b5
2b1Bn2/K3bQ1b/1N2n3/2RpPPN1/1r1r3Q/k3N2p/P1nb3q/5bqb w - d6 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 e5 Nf3 gxh6 Ng1 h5 Rh2 h4 Rh3 Qg5 Rh1 Qd8 Na3 e4 Rb1 Nf6 Rb3 Ng8 Re3 Be7 Rd3 Bf8 e3 exd3 e4 f5 Bd2 f4 Be3 fxe3 c4 Ke7 f4 Kd6 g4 Kc5 g5 b5 e5 h5 g6 d2+ Ke2 d3+ Kf3 e2 Ke4 e1B g7 h3 Ne2 b3 Qb1 Kb4 Kd5 d1Q c5 h4 c6 h2 c7 d2 Nd4 b2 Qc2 b1B Rg1 h1B+ Qe4 Nc6 Nf3+ Nd4 Qc2 Ne7+ Kd6 Rb8 g8Q Ng6+ Kd5 Be7 Qd3 Nf8 Rg7 Nde6 Qe2 Bh7 f5 h3 Rf7 Qc2 Qf2 d1N Be2 Bd2 Qfg3 Qe8 Rf6 Qg6 Qe1 Qg1 Qf7 Qb2 Nc4 Ne3+ Ke4 Nc2 Kd5 Rg8 Qh4 Rg4 Ne3 Ka3 Rg6 Re4 Ng5 b4 Bh5 b3 Rf6 Rbb4 Rh6 Nd8 Rc6 Nde6 Rc4 Qc3 Rc5 b2 Bg6 b1B Bh5 Qb2 Bg6 Ba6 c8N Bf1 Nb6 Ba6 Qg4 Bc8 Qh5 Ncd4 Qh4 Bd3 Qf6 Nc2 Be8 Bf1 Qf7 Qc3 Ng4 Qcg3 Ne3 Bf6 Kd6 Q3h2 Kd5 Nf4+ Kd6 Red4+ Kc7 Be7 Kb8 N4e6 Ka7 d5
3b1kb1/5r2/n1r2Qq1/npPK1b2/1rPR2pN/3p1Q2/2P2r1R/b2Qb2N w - b6 0 1 illegal: Other
1b3r2/3krPn1/p2B1Qn1/RpP1n3/8/1RppP2b/Q1n1Q1n1/1KqB2n1 w - b6 0 1 illegal: Lossy FEN conversion
1b1q1b2/r2b3P/1P1kp2B/Q1pP2q1/1Q1nq3/b1bR3q/2KRn3/3Q1Q2 w - c6 0 1 illegal: Lossy FEN conversion
n3nB2/q7/1Pr2kP1/3PpPb1/r2n1N2/qr2N1q1/1rb4p/NqQBK3 w - e6 1 2 illegal: Lossy FEN conversion
q2k4/1P1n4/1bb1p3/R1PQNPp1/2bN3q/2Kbpb2/3P1n2/2r1rN1Q w - g6 0 1 illegal: Lossy FEN conversion
1b3nB1/2R2n1B/bB1qn3/1N1nnPp1/N3R1R1/7k/3qQr1n/K1n1n1Q1 w - g6 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Ra7 Bc1 Rb7 Nd2 axb4 Nb1 b3 Ke2 b4 Ke1 Rb5 axb5 Rh5 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 f4 Ke6 c4 Kf5 h4 d5 b6 e5 h5 b2 Kc2 b3+ Kd2 g3 h6 d3 Kc3 g2 h7 d4+ Kd2 e3+ Ke1 e4 c5 e2 Kd2 Kg4 b7 Nh6 f5 Bd6 c6 Nd7 b8R Nf7 c7 Nf8 Ra5 Ba6 Nh3 g1N Nf4 Nh3 c8B Nhg5 Re5 Nge6 Ra8 Bb8 Na3 b1N+ Ke1 d2+ Kf2 b2 Nd5 d3 Ke3 Qd6 Nb6 Nc3 Na4 b1N Nb5 Na2 Ra7 Nbc3 Rh4+ Kg3 Rc7 e1N Bd7 Nf3 Be8 Nh2 Qe2 d1N+ Kd2 Nf2 Ba3 Nc1 Bc5 Nd5 Bb6 Nfg4 Bg2 Rg8 h8Q e3+ Kd1 d2 Kc2 d1Q+ Kb2 Qd3 Ka1 Qd2 Re4 Nge5 Qhh5 Rh8 Qg6+ Nfg5 Bf3 Rh7 Rhg4+ Kh3 Bf7 Rh6 Bg8 Ngf7 Bh7 Rh4 Qd1 e2 Qg5 e1N Qe2 Rh6 Qge3 Rh5 Qg1 Rh6 Rg6 Rh4 Bh5 Rf4 Rg4 Rf1 B5g6 Rf3 Bg8 Rf2 B6h7 g5
5R2/bn1B4/pkrn3b/1r2QPpp/2Qq1BQ1/1Kb1B2R/1bN2rq1/3N4 w - g6 0 1 illegal: Lossy FEN conversion
3qk1r1/qB1N1b2/3nKb2/rRB3Pp/2nQ4/n1q1Q3/N1r1pRb1/Q4R1r w - h6 0 1 illegal: Lossy FEN conversion
Q7/4r1Bn/3q3q/qpPBbk1N/bR2q3/Q1KQp2q/1N5R/n1n2rBn w - b6 0 1 illegal: Lossy FEN conversion
1B2rq1Q/3qb2Q/2rR1n2/1R4pP/3Qb1B1/N2N1pb1/Nr3nk1/b2rK2b w - g6 0 1 illegal: Lossy FEN conversion
6QQ/4n3/1B1b2Bn/b3PpN1/bn1B2pK/1qN2nr1/prpkn2R/4NR2 w - f6 0 1 illegal: Lossy FEN conversion
r3R2B/3B3n/N2kp2Q/1Pp5/rqQ2q1N/R2q1p1r/p1KRb3/br3n1B w - c6 0 1 illegal: Lossy FEN conversion
1Q2RRNq/2K2r2/3n1n2/npP1bR2/2nR1n1R/kr4nq/B1pbN3/6Bb w - b6 0 1 illegal: Lossy FEN conversion
2b1N1n1/3QB1R1/4K2b/pP1BB2r/1n4n1/rBB1n1qp/1Npn1k2/1n1n2R1 w - a6 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 c5 b4 h5 g4 e5+ Ke3 h3 f4 h2 b5 h4 f5 a3 f6 h3 g5 a2 f7 c3 g6 c4 g7 c2 Na3 c3 Qd3 Qg5+ Kf2 e3+ Kf3 e4+ Ke2 Qg3 Nf3 Nd7 Ne5 Rh5 Rg1 h1N Bd2 c1N+ Kd1 e2+ Kc2 e3 Be1 Nf2 Nec4 Nd1 Nb2 Ndf6 Nac4 Ng4 Nd6 Nb3 Ne8 Nd2 Rc1 Nb1 Kb3 c2 Bc3 e1N Bg2+ Nf3 Qd2 Ke4 Kc4 a1N d5 e2 d6 e1N d7 Nb3 d8B Nd4 Bc7 Nc6 B7e5 Nb4 Qd7 Ke3 Bh1 Kf2 Bg2 Nbd3 Kd5 Nb4+ Ke6 Nfd2 Bd5 Ng2 Bb3 N2e3 Bd5 N8f6 g8B Bh6 f8B Rb8 Be7 Rb6+ Kf7 Ra6 Bb3 Ra3 Ke6 Kf3 Bf7 Ng8 Rg2 Ndf2 Rh1 Nfd1 Rhg1 Qh4 Rg3+ Kf2 Bd5 Nh2 Rg7 Nhg4 Bg6 Qg5 Bge4 Qf4 Bb3 Qg3 Bed5 a5
2n2nKn/1n6/1RQ1p1Nr/1p2rpPR/2N2R1b/R1R1r3/B1rBb2n/5qk1 w - f6 0 1 illegal: No possible last move, all moves rejected
R1r1N1K1/q1RB2Bp/n6b/1r1Pp1b1/1k5b/1rpQ2R1/1b2N1bR/2qn3N w - e6 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Ke5 a5 f4 c5 d4 a3 b4 a4 g4 e3 d5 a2 f5 a3 f6 e2 f7 e1B g5 h3 g6 h2 g7 Ra5 Qd2 Qd7 Qd1 Nf6 g8R Bh6 f8R Ne4 Qd3 Bh4 Bh3 Qa7 Bb2 Nc3 Ne2 Nd1 Nd2 Na6 Rc1 a1R Rg3 a2 Ne4 Rb1 Nf2 a1B Rd8 Be6 Ra8 Rc8 Bf5 Ka4 b5 c3 b6 c2 b7 c4 b8N Kb4 Nd7 Rb5 Nf6 Bd7 Bd4 Rb3 Ne8 Bb2 Bg4 Bf5 Bh3 Be4 Ke6 Bg2 Kf7 B6g5 Bg7 Bh6 Kg8 c3 Rb1 c1B Bd7 Bcd2 Ra1 Bdg5 Ra5 Rbb8 Rc5 Rb7 Rc7 Rb5 Rf1 h1Q Rg1 Qh2 Rh1 Qg1 Rh2 Qf1 Nh1 Qf4 Rb8 Qc1 Ra8 e5
3b1n1k/b2B4/2pq3r/5Pp1/1RN1rB2/N1br1nQQ/p4K2/1N1rN1Rr w - g6 0 1 illegal: Lossy FEN conversion
N2Rb1nB/2N1pr2/Kp2qn2/3pPkrB/2b5/2B4N/1bN1q1b1/1nR3R1 w - d6 0 1 illegal: Lossy FEN conversion
2nnQ2B/N1k3b1/2nNr3/3B2Pp/1q2nP2/Rn4r1/bBb3K1/N1n2R1n w - h6 0 1 illegal: Lossy FEN conversion
1bnn2rB/1RNr3P/3B4/kbRK1Pp1/4n1n1/bR2nn2/1rN5/B5nQ w - g6 0 1 illegal: Lossy FEN conversion
k3r1b1/3n3q/2Rrn1n1/pP1NRB2/6pr/R1r1Q3/1rB2n1P/2KqN1B1 w - a6 0 1 illegal: Lossy FEN conversion
BnnR1K2/1r1r4/3n1rrN/1Pp5/1R1rrB2/3P1p2/B1kb1qN1/3R1n1Q w - c6 0 1 illegal: Lossy FEN conversion
QnN4r/qbn5/5K2/PbR3Pp/kqB1Nb2/3b2BR/p1R2r1p/1Nb1b3 w - h6 0 1 illegal: No possible last move, all moves rejected
2B3b1/Q4rnK/RNpR3b/1p2pP1r/3bP2q/5k2/bn1BR2n/1NnB3q w - e6 0 1 illegal: Lossy FEN conversion
b1k2N2/4R2Q/1qpKNp1r/Qb3Pp1/3n2Br/bPq2b2/3R4/B2r1B1q w - g6 0 1 illegal: Lossy FEN conversion
Q4N2/Q6K/q1n1p2p/Pp1R2r1/1bpb3B/4PNn1/Bb1rN1rR/r2k4 w - b6 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 d3 cxd3 h3 g5 Rh2 g3 Bd2 g2 Rh1 g4 Bh6 g3 Bc1 Bg4 hxg4 Ra3 Qb3 Ra4 Qd1 Ra8 Kd2 Kd7 Ke3 Ke6 Ke4 c5 a4 d2 f4 h6 a5 c4 g5 b3 g6 b2 g7 Nc6 Qa4 d1R Qb4 Nf6+ Ke3 Kf5 g8Q Qd6 Qb6 Ne4 Qa7 Rd2 Nc3 b1R Rh2 e6 Nf3 Bg7 Qe8 Kg4 f5 Rc8 f6 Rg8 f7 Bf8 Qd8 Rg5 Ra3 Bg7 f8N Ra1 Bb2 Rc7 Qda8 Bf6 Rb3 Rcg7 Rb5 Be5 Rd5 g1B+ Rf2 g2 Ba3 Qc7 Be7 Qd6 Bd8 Ng3 Be7 Nh1 Ke4 Bgh2 Bf6 g1B Be7 Bhf4 Rh2 Bgd4 e3 Kg3 Bg2 Kf2 Ne2 Bb2 Bd8 Bed4 Bh3+ Rg2 Bh4+ Bg3 Bf5 Rg5 Bh7 Kf1 Bf5 Be1 Bg6 Qb4 Kf4 Qb6 Bb1 Qa6 Ba2 Ng3 Qb6 Rdd1 Qc5 Bb4 Qca7 Rf5+ Kg4 Rd2 Ne5 Ke1 Nf3+ Kd1 Q7b8 Re5 Qba7 Nf5+ Kh5 Ng3+ Kg6 Rg5+ Kh7 b5
nn1Rn3/B3Q1QB/2N1KP2/2Pp3b/brrp3N/3np3/1Rrp3k/q2N4 w - d6 0 1 illegal: No possible last move
1n2KQR1/2rr1p1N/4r2Q/pPbb1krP/q3R2B/nr1B4/r1NN2r1/1b6 w - a6 0 1 illegal: Lossy FEN conversion
Q2R1BN1/2bn1n1B/5K1Q/1pPq3p/q3N2P/5k1b/3rnq1R/rB2rb1r w - b6 0 1 illegal: Lossy FEN conversion
b3N1r1/3np3/2N1p1b1/Pp3rQ1/2Rpn1N1/bB1kqq2/Q2P1q1B/Kr5R w - b6 0 1 illegal: Lossy FEN conversion
B1q2k2/r2R4/3p2bP/K1nPp3/p1r5/N2N2bb/1QprR2n/1bQ1Q1Bq w - e6 0 1 illegal: Lossy FEN conversion
1Nb1kNR1/3nr1r1/pP5n/2B1Pp2/2b1Qn1K/1RrR3n/8/qr2nRB1 w - f6 0 1 legal: proof: d4 b5 f4 c5 h4 cxd4 a4 bxa4 g3 e5 h5 exf4 Bh3 Ba3 Bf5 Be7 Bg6 Bh4 gxh4 hxg6 Kf2 d5 c4 d3 b4 g5 e4 a6 b5 g4 c5 g5 c6 f3 Kg3 d2 e5 d4 c7 d3 b6 a3 h6 a2 h5 f2 h7 f1B h6 Nd7 Ba3 Ra7 Qa4 d1N Nf3 d2 Rh3 Ne3 Nd4 d1R Bc5 Ng2 Nc3 Rb1 Nce2 Nf4 Ne6 Qf6 N2d4 Bc4 Nf8 Qf5 Kf2 g3+ Kf3 g2 Kg3 g1N Nc6 g4 Nb8 Qd3+ Kh4 Qa3 Rb3 Ngh3 Bg1 g3 Qc6 g2 Qe4 Re1 Rab1 a1N Rd1 Re3 Rf1 Nc2 Rd3 Ne1 Rb3 Ne7 Rd3 Rg8 h8B Qa1 h7 Rg5 Bg7 Ng8 h8R Nh6 Rg8 Rgg3 Bf6 Rg7 Be7 Rf3 Rb3 Rc3 Bec5 Rb7 Bgd4 g1R Be3 Rh1 Bg1 Rh7 Rg3 Rg7 Rgf3 Rh2 Rg3 Rb2 Rd3 Rb1 Bce3 Nc5 Bd2 Bd7 c8R+ Ke7 Ne6 Ra7 Rh8 Bc8 Nf8 Ke8 Bde3 Re7 Rg8 Nd7 Bc5 f5
5Qn1/kBqqB3/1b1R1q2/r2N2Pp/2RNN2r/PpNK4/4b1qn/1nq4b w - h6 0 1 illegal: Lossy FEN conversion
2k2q2/8/1nnK4/Q2NPpBr/3B1p2/1b2N1qR/1pP2p1N/QBq1n2r w - f6 0 1 illegal: Lossy FEN conversion
4n2K/r6Q/1R3R2/1Ppn2k1/4Brr1/p1PqNbB1/1BR2q1b/b1q1b1Qb w - c6 0 1 legal: proof: f4 b5 g4 g5 a4 bxa4 e4 gxf4 Nc3 d5 g5 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 Ke2 e5 b4 Ke7 h4 a5 d4 f5 b5 a3 d5 a2 h5 e3 Kd3 g3 h6 f3 h7 a4 g6 Kf6 g7 e2 c3 e1Q d6 f2 d7 a3 Bb2 f4 Rb1 a1B Rh5 g2 Ne2 g1Q Ke4 f3 Qd3 Bd6 Rh3 Ra7 Rh6+ Kg5 Qc4 Nc6 Qd5 Qc1 Qf7 Nb4 Rf6 Nd5 Nf4 Bb7 Bd3 f1R Ng2 f2 Ne3 Qh2 Bc2 Rg1 Bd3 f1B Bc2 Be2 Qe7 Kh4 Kf5 Rg4 Be4 Bf3 Ke6 Kg5 Kf7 Bb4 Rb6+ Ngf6 Qc5 Re8 h8Q Qf2 Qh7 Rg8 Qd4 Ne8 Qd1 Bd6 Qg1 Qcf1 Rc1 Rf8+ Ke6 Rf4 Rc2 Ndf6 Kf7 Nd5+ Kg8 Qc1 Kh8 Bc6 Bg6 e4 g8R Bh1 Rf8 Bb7 Nf5 e3 Rf6 e2 Ne3 e1B Bf5 Rc4 Be4 Bh2 Bf5 Rf4 Be4 Qe7 d8B Qd7 Be7 Qf5 Bd6 Ba8 Bg2 Qd3 Be4 Ne7 Bg6 Baf3 Be4 Nd5 Be5 Rf5 Bg3 Rff4 Rfc6 Qcd1 Rd6 Qc1 Rf6 c5
1rn1b2k/3brQ2/3p3q/1ppPr3/1q1pBb2/KP2R3/Q1R1rnN1/1N3N1R w - c6 1 2 illegal: Lossy FEN conversion
5Bn1/4Nkr1/Bp1p1P1n/2pP1p1r/1Q1N1p1q/r4rbK/b1B4Q/4qRN1 w - c6 0 1 illegal: Lossy FEN conversion
qb6/2kb1r1p/2Pp1R2/2bPp2N/nR2nNR1/2R1rBK1/1n2R3/r1Q2b1r w - e6 0 1 illegal: Lossy FEN conversion
NN2b3/1qR2r2/b1rR1b1R/2k1pP1r/1r3p2/4P1Kn/R1b4B/r1Rn3B w - e6 0 1 illegal: Lossy FEN conversion
1QrNN1b1/8/p2r1q2/4QPp1/k2n2n1/3Pb1Qr/BQ2q1nR/1n1K1Q1r w - g6 0 1 illegal: Lossy FEN conversion
5Q2/b4b2/kqb3nP/r1rpPrN1/Q5R1/3N3Q/Qbqn1Rn1/N4bK1 w - d6 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 e4 f1N+ Ke1 a5 Kf2 f5 h4 d3 c4 a4 b4 a3 g6 d2 b6 f3 e5 f4 b5 a2 c5 Ne7 c6 Nd5 c7 Bb7 c8N Nc6 g7 Nde3 g8Q Ng2 h5 Qc7 h6 Kd8 Na3 Ra5 Qe1 d1B Nb1 Nd2 Ne2 g3+ Kg1 Ne7 Qc4 Bb3 Rh2 Bc6 b7 Ng6 b8Q Bc5+ Qf2 Ba7 Qa4 Bf7 Nd6+ Qc8 Qa8 Kc7 Ne4 Rg8 Qe3 f2+ Kh1 f1B Nc1 f3 Nd3 f2 Na3 Rd8 Nc2 Rg8 Rc1 a1B Ng5 Bb2 Na1 Rh8 Qf3 Kb6 Rc4 Qc7 Qg8 Kb7 b6 Ka6 Qa8 Rc8 b7 Qb6 b8Q Qb3 Rh5 Qc2 Rh2 Ne1 Qbb3 Rb8 Qba2 Bh3 Rg2 f1R+ Rg1 g2+ Kh2 Rb5 Qe3 Rf5 Rg4 Rd5 Qf3 Rb5 Rf1 Rd5 Kg3 g1Q+ Qg2 Qf2+ Kh2 Qb6 Rf2 Rc5 Qg3 Bhg2 Kg1 Bf1 Qf8 Ng2 Qh3 d5
1N2N1N1/4p1nr/p1p1N3/bpP1Pn2/1QK3k1/br1pb2R/QR3qb1/1R3n2 w - b6 0 1 illegal: No possible last move, all moves rejected
q4Rb1/3k3r/2pp4/Pp6/K4pRR/n1bB1PB1/n1Br1q1q/1nRR1R2 w - b6 0 1 illegal: Lossy FEN conversion
bkr3N1/q1R1nq1P/1b2r3/3pP3/bB2B1R1/4bn2/1Pr5/1bRnQ1KN w - d6 0 1 illegal: Lossy FEN conversion
5r1b/1P4B1/B6R/1nb1pPnR/bNK3Q1/r1nB2q1/2b2Pk1/r1N1bn2 w - e6 0 1 legal: proof: h4 f5 e4 c5 exf5 b5 a4 bxa4 d4 cxd4 c3 dxc3 Qd3 g5 Qd1 gxh4 Ke2 Kf7 Kd3 Kf6 g4 Ke5 b4 a5 b5 h5 g5 d5 b6 a3 g6 c2 b7 a4 g7 d4 Qd2 a2 Ba3 c1B Qe2+ Kf4 Bb2 a3 Bh3 Qd6 Qc2 Be3 Nc3 Bd7 Rd1 a1B Kc4 a2 Kb3 d3 Rh2 d2 Nb1 Nh6 g8B Ra3+ Kc4 Nc6 Qd3 Nf7 Bh7 Bc5 Bd4 Bh6 Bg4 h3 Re1 d1N Qc3 h4 Bf3 Rf8 Be2 Na7 Qb3 Ba4 Rg2 h2 Bg6 h1B Nc3 h3 Rg5 h2 Bgh5 Be4 Qb2 Bb1 Nd5+ Ke4 Bh8 h1N Nb4 Ng3 Qg7 Bbc2 Rg6 Bc1 Rh6 Bd2 Bf1+ Kf4 Bhe2 Bb2 Qg8 a1R Qg6 Qc7 Kd5 Qb8 Ba6 Nb5 Qh5 Ng5 Kc4 Qe5 Re3 Be1 Bd3 Nf1 Rh3 Qe3 Qe2 Qg3 R3h5 Bbd4 Bf6 Ndc3 Qd1 Be5 Ne2+ Kf3 Nc1+ Kg2 Qe2 Bc7 Bd4 Be5 Qg4 Bh8 Bg7 e5
B1r1qn2/N1BN1qbq/K1PR4/1pP4Q/1P2R1b1/rq3n2/2p1bR1r/k3b3 w - b6 0 1 illegal: Lossy FEN conversion
2rB1k2/1r1n1N1P/3K1Rb1/p2ppPN1/R1rb2q1/br6/P1n5/BNrQ3b w - e6 0 1 illegal: Lossy FEN conversion
2b3rk/pK2Pqb1/Bn5q/1RpPQp1P/q2p1B2/1R1rb1N1/8/2B1n1qN w - c6 0 1 illegal: Lossy FEN conversion
2nr2b1/1b1pBprQ/1n2n2p/P1pP2Bq/2k3q1/1R2nPNB/2K4b/2N2N2 w - c6 1 2 illegal: Lossy FEN conversion
qQ1r1qQK/b6R/3P1NnQ/1pP5/3B2Rb/3bqNn1/2knPr2/1q5q w - b6 0 1 illegal: Lossy FEN conversion
1kn4K/1Bb1R1r1/2BQ2n1/1nN3Pp/4P1N1/2r1Q1r1/2qBp1P1/1rbb2n1 w - h6 0 1 illegal: Lossy FEN conversion
5K2/Pq1QNpp1/nN1r2br/1Pp1r1r1/1n1Q1R1B/3q2P1/k4BQr/5r2 w - c6 0 1 legal: proof: f4 a5 b4 e5 a4 exf4 c3 b5 e3 d5 g3 h5 Nh3 h4 Bc4 dxc4 Ng5 h3 Nh7 axb4 Ng5 b3 Nf3 b4 Rg1 Bc5 Rg2 hxg2 Ng1 Kf8 Ba3 Qd6 Qe2 Bf5 Kd1 Ba7 Nh3 Ke8 Bb2 Qd3 Na3 Qd8 Rc1 Bg4 Nb1 Bc8 Qg4 Bd4 Ke2 Be5 Rh1 Bd6 Bc1 b2 Ke1 b3 Ng1 Be7 Qd1 Bb4 cxb4 Rh4 Nc3 Rh7 Nb1 Rh8 Ke2 Kd7 Kf3 Kd6 Ke4 f3 h4 c3 d4 c2 h5 f2 a5 f1Q b5 Qc4 a6 Nd7 a7 Nb8 h6 Bd7 h7 Be6 Ne2 g1R Nec3 Qe2 d5 Kc5 d6 Kc4 d7 Qf6 d8B Na6 Na4 Ne7 Rh4 Rh1 Nbc3 b1R Nd5 b2 Rf4 Kb3 Nab6 Rh2 Qd4 Nc6 Ne7 Bf5+ Kd5 Ka2 e4 Bg6 e5 Qd3 Be3 Re1 e6 b1R Bg1 c1R Bf2 Re8 h8Q Reh1 Qh6 Rc3 Qh4 Rbf1 Qh3 Rc2 Qg2 Rh6 Nf5 R1h2 e7 Rcc1 Nd7 Rce1 Nb6 Reh8 e8Q Re4 Be7 Rd8+ Qd7 Rhe8 Rf3 Rg4 Rf4 Qh4 Bg5 Qh3 Bh4 Rg5 Qf3 Qg2 Qe4 Rg4 Ne7 Qh1 Qg2 Ncb4+ Ke5 Nc2 Kd5 Rg5+ Nf5 Re5+ Kc6 Rdh8 Ne7 Rd8 Qe6+ Rdd5 Qd6 Ncb4+ Kd7 Qd2 Ke8 Qd3 Qd7 Rd6 Qg1 Qhe4 Qg2 Qb7 Kf8 c5
QNrbR3/1rr3nP/Q2q1kb1/1N1Pp2r/q4b1q/4n3/R2BPqN1/3bK3 w - e6 0 1 illegal: Lossy FEN conversion
2K1bk1N/1N1b1nqQ/5rb1/R1nPp3/1q1n1n2/1r3Rpn/4P1RP/B3bQ2 w - e6 0 1 illegal: Lossy FEN conversion
2QnK2n/2q1p2p/2r3Rq/1rPp1QbP/1bq1P3/Q1r1B3/N1B2N2/5knb w - d6 0 2 legal: proof: d4 c5 b4 cxd4 a4 a5 g4 axb4 Bg5 f5 Bc1 fxg4 Ra3 bxa3 Kd2 Kf7 Kd3 Kg6 Kc4 Kh5 Kd5 Kh4 c4 b5 f4 g5 f5 b4 f6 a2 h3 Kg3 a5 Kf2 c5 a1B a6 b3 e3 d3 h4 d2 a7 b2 f7 g3 h5 g4 Rh2+ g2 Rh3 g3 Nc3 b1R Bb5 Qc7 Rh4 Bh6 Rg4 Bb7+ Bc6 Bg5 Nce2 Rb5 Qc2 d1Q+ Qd3 Qf1 Nc3 Nh6 f8Q+ Nf7 Na2 Bc3 Qc8 Bb4 Nh3+ Ke1 Qf5 g1Q Nf2 g2 Ke4 Qc4+ Kf3 Qgf1 Be4 Nc6 Bc2 Re8 Rg3 Nh8 Rg4 Rb8 a8Q Rf8 Qa6 Rf6 Qa3 Rd6 Kg3 Nd8 Kh3 Bf3 e4 Rc6 Be3 Ke2 Rg3 Qc1 Rg4 Kf1 Rg3 Bf4 Kh4 g1N Rg6 Bh1 Kg4 Be5 Kg5 Bf6+ Kh6 Bg5+ Kg7 Ra8 Qc3 Ra3 Kf8 Qd2 Qb2 Rc3 Ke8 Qdd6 Qa3 Qde6 Rg7 Qh6 Rg6 d5
b2Q4/N2rQ1nK/p2rb3/Ppn1P2R/2NR1qB1/b1pP4/Qn3br1/3b2k1 w - b6 0 1 illegal: No possible last move, all moves rejected
n1bn4/1n3Qb1/3Bqp2/1N4Pp/1P1p1n1K/3rR1rP/1bnQr3/1k1B1R1Q w - h6 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Nf3 g4 Nbd2 exf6 Ng1 f5 Ndf3 gxf3 Bd2 f4 Be3 Ba6 Bc1 Bc8 Kf2 Ke7 c4 Ke6 e4 Ke5 b4 a5 g4 d5 c5 d3 c6 Kd4 h3 Kc3 c7 d2 g5 f6 e5 a3 e6 a2 e7 a4 e8Q d4 Qe4 a3 Qb7 Qd7 Bd3 Qe6 Bb5 Nc6 Qa6 Nh6 Qa7 Bg7 Rb1 a1B Qe1 Kc2 Qb8 d1R Qe5 a2 Bc4 Rd3 Qb6 Raa3 Qbc5 Re8 Qe3 Nf7 Bb2 Nd6 Qa7 Nb7 Qe4 Ncd8 Bc3 Bb2 Re1 a1N Re3 Kb1 Bb3 Nc2 Be1 Re7 Ne2 Re8 Kf1 f2 Kg2 f3+ Kg3 f1N+ Kh4 Nd2 Rf1 f2 Qh1 Nc4 Ba4 Nb6 Nc3+ Kc1 Nb5 Kb1 Bb3 Na8 Bd2+ Ne1 Bd1 Nc2 Re2 Rg3 Bf4 Rad3 Bd6 Re7 Re3 Re8 Qa3 Re7 Qc3 Re8 Rg1 f1N Qd2 Re7 Re1 Nfe3 Rgf1 Nd5 Re3 Bd7 c8Q Nf4 Qcc6 Bc8 Qe8 Qb3 Ref3 Re2 Qf7 Qe6 Re3 h5
3q2q1/rQBB1b1p/n2b3Q/R3qqpP/P5R1/3nn3/K2p1PQ1/2kr2rN w - g6 0 1 illegal: Lossy FEN conversion
1B3QBr/4p3/1B4q1/pPp1nR2/1bPN1P1R/np4r1/QKb2k2/n3n1nq w - a6 0 1 illegal: No possible last move, all moves rejected
2bB4/2b3kr/4p1Bb/PpNb1b1B/4PRq1/1P4p1/1b1n2NR/b1Nn2rK w - b6 0 2 illegal: Lossy FEN conversion
k3B1qr/r7/Np4bq/1P3pP1/q2bPQBn/2RBb3/1n3r2/1rN3KB w - f6 0 1 legal: proof: h4 e5 f4 exf4 a4 a5 d4 c5 Bd2 cxd4 Ra3 g5 hxg5 Bc5 Bb4 axb4 b3 bxa3 b4 Bd6 b5 Bf8 Kf2 d5 c4 Kd7 g4 Kc7 e4 h5 c5 b6 g6 Kb7 g5 d3 a5 h4 g7 a2 Qe1 a1B Nc3 h3 Na4 f3 Be2 h2 Nc3 d4 Qc1 d2 Qd1 d3 Na4 Ne7 g8B Nd7 Qc1 d1R Bh7 d2 Bd3 Ra7 a6+ Ka8 c6 Nc5 c7 Ng6 Ne2 Bf5 c8B Nh4 Bg6 Rg1 Be6 d1Q Bh5 Bg6 Beg4 Bd4+ Qe3 Qa1 Nc1 Rg2+ Kf1 f2 Qf4 Bd6 Bf3 Qg8 Bhg4 B6e5 Rg1 Be3 Rh1 B5d4 Rg1 Nb3 Nc5 Na5 Rh1 Nc4 Rg1 Re7 a7 h1Q Na6 Qh3 Rh1 Qa4 Rg1 Nb2 Rh1 Kb7 a8B+ Ka7 Bd5 Qh2 Bde6 Ka8 Bd7 Qh3 Be8 Ra7 Bgd7 Qe6 Rh3 Qd6 Bdg4 Rg1+ Ke2 f1R Bh1 Qf6 Nb3 Rb1 Nc1 Rg2+ Kf1 Rf2+ Kg1 Qfg7 Bf1 Qh6 Bc4 Bd2 Rc3 B2e3 Bd3 f5
1n1n1RR1/b1nQnqp1/3K1P1q/Pp3P2/q1rr4/RN1R3N/7q/3B2bk w - b6 0 1 illegal: Lossy FEN conversion
1KBQrk2/q4p2/r5p1/NpPPp3/1R4P1/1N2BnBr/r1brn1B1/bb6 w - e6 0 1 illegal: Lossy FEN conversion
2N4n/b1r5/2p4k/pQPp2rb/2NB1P1q/2nP1bN1/K3q1pR/bN3B1q w - d6 0 2 illegal: Lossy FEN conversion
rrNn2rQ/n2p1nqN/1P6/1RpP2Nb/p1K5/k4P2/1bQN3B/4n1b1 w - c6 0 1 legal: proof: c4 f5 e4 fxe4 a4 b5 axb5 g5 c5 g4 c6 Nxc6 Nc3 g3 Nb1 Nb4 Ke2 Nc2 b4 Ba6 f3 Bc8 Ra3 Bb7 Re3 Bc8 Rb3 Na3 Re3 Nh6 Ke1 Ng8 Re2 Nh6 Rf2 gxf2+ Ke2 Nc2 Ba3 Ng8 Bb2 Na3 Bc1 Nc2 g4 h5 g5 Na3 Bh3 Nc2 Bg4 hxg4 h4 f1R d4 e5 d5 Ke7 b6 Kd6 g6 a5 g7 e3 Kd3 g3 b7 a4 b8N e4+ Kc4 g2 b5 e2 b6 e1N h5 e3 h6 e2 h7 Na3+ Kb4 Qf6 Rh5 Ne7 g8Q Qg7 Bg5 Nb5 Qb3 Nc6+ Kc4 Nba7 Qf7 Nd3 Nd2 e1N Nh3 g1B Qg8 Nd8 Nc6 Be7 Bh4 Bf6 Qc2 Bb2 Ne7 Rf2 Rg5 Rg2 Rg4 Bb7 Bg3+ Ne5+ Kb4 Bc8 Bh2 Ba6 Ng5 Bd3 Qf8 Rg8 h8N Bg6 Nh7 Bh5 Rc4 Rg5 Rc5 Rf5 Qe8 Rff8 Rb5 Rb8 Nhg6 Ra8 Nf4 Nef7 Kc4 Ke5 Kb4 Kd4 Nc8 Rb8 Nh3 Ra8 Qc5+ Kd3 Qf2 Kc2 N3g5 Rb8 Kc4 Kc1 Nb3+ Kb1 Qe5 Ka2 Qc2 Ka3 Nd2 Ndc6 Ne7 Rfc8 Qf6 Ncd8 Qh6 Ra8 Qf6 Rcb8 Nc8 Qh6 Qh8 Qf8 Qf5 Qg7 Qc2 c5
q1KRb3/1NN3kr/1QnR1b2/4pP1P/P4bnB/1p2q1q1/PnBnr3/6r1 w - e6 0 1 illegal: Lossy FEN conversion
3Bn2B/1b1PrKb1/4r3/r5Pp/3b1N1N/BPP1p1k1/qnQ2n2/n2R2n1 w - h6 0 1 illegal: Lossy FEN conversion
3Q1r2/nk1r4/1bbP2bb/4Pp1r/1Q3NP1/PN2N1Rq/q5R1/3r2K1 w - f6 0 1 illegal: Lossy FEN conversion
7b/B6R/2bpnP2/1pPq1n1P/nk4Nr/nBrP1n2/Pb3NR1/1bqK4 w - b6 0 1 illegal: Lossy FEN conversion
1Nr1KRr1/8/1kpp4/r1R1Pp2/1q1PpPb1/1Pp1n1nn/1b1r1P1R/3B1N2 w - f6 0 1 illegal: Lossy FEN conversion
k3K1nB/p6b/r4N1p/1PrpPqpB/n1pP2P1/PPNN4/b7/b1qr4 w - d6 0 1 illegal: Other
1n1rr3/4kqB1/4b1R1/Pp2pB1q/1q1R1p1n/1n5q/1QBB2RN/3NK2B w - b6 0 1 legal: proof: h4 a5 f4 Ra6 e4 g5 Ke2 gxh4 Kd3 d5 exd5 Kd7 b4 axb4 f5 Re6 f6 Re2 c4 e6 Kc2 Bd6 c5 Be7 c6+ Nxc6 fxe7 Nb8 e8B+ Kd6 a4 c5 g4 h5 g5 f5 a5 e5 g6 f4 g7 c4 Bg6 h3 Bf5 h2 Ra2 h4 Nc3 h3 Bg2 Nf6 g8B Rf2 Nf3 Be6 Rg1 h1Q Nh2 Nfd7 Bgh7 Qe8 Qe2 b3+ Kd1 b2 d4 b1Q Qb2 Ke7 Ke1 Nf8 Nd1 c3 Bd2 c2 Bge4 Qf3 Rg6 Qh5 Bh1 c1N Bc2 Nb3 d6+ Kf7 d7 Ke7 d8R Qf7 d5 Rg8 Rg5 Ng6 Bf5 Nh4 Rg6 Re8 d6+ Kf8 d7 Ke7 Rc8 Rf3 Rc4 Rd3 Rb4 Rd5 Rd4 Rd6 Nf1 h2 d8B+ Kf8 Bf6 Rdd8 Bg7+ Ke7 Bd5 h1Q Bc2 Qg1 Bh1 Qgg4 Nh2 Qgf5 Rg2 Qfg4 Bhf5 Qh3 Ra3 Nc5 Rag3 Nb3 Qa1 Qb2 Rg6 Qbc3 Qa3+ Qb4 Qb2 b5
R1qnB3/Bq2r2n/q4b2/Br1pP1RN/2BK1nq1/Qb1N4/N3k3/2B1q1r1 w - d6 0 1 illegal: Lossy FEN conversion
K3k3/p3p2q/2NRBBb1/PpnrB1Nq/5qp1/4n1n1/N3nQB1/2B1R2r w - b6 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 c5 Ke1 cxb4 h4 g5 Na3 Bh6 Nb1 fxg4 Bd3 g3 Be2 g4 Bf1 Bg5 hxg5 Kf7 Bb5 Kf8 Bf1 Ke8 Ke2 h5 Ke3 h4 c4 b3 d4 b2 a4 g2 Ra2 h3 f4 h2 f5 Nh6 f6 Rh7 a5 Be6 f7+ Kf8 c5 Bd5 c6 Nf5+ Kf4 e3 Ke5 e2 g6 e1Q+ Qe2 Qd7 c7 Qd8 c8B Qh4 Nh3 g1N Bg2 Ng3 Nc3 b1Q Qf2 Qh5+ Ng5 Rh8 Rd2 Qh3 Na2 Bb3 d5 N1e2 d6 Rh6 d7 Nf5 Re1 Qb6 d8B h1N Bc7 Kg7 f8B+ Kg8 Bg7 Na6 Bf6 Kf8 g7+ Ke8 g8N Bc2 Kd5 Rh7 Nh6 Nhg3 Bce5 Qd4+ Ke6 Ne3 Nf5 Qf4 Nd4 Qh6 Rdd1 Qg6 Nc6 Rh1 Rd7 Qh5 Rd4 Qb4 Rd5 Qbe4 Rd2 Qeh7 Rd3 Kf8 Kd7 Nc5+ Kc7 Ke8 Be6 Rd8 Rdd1 Rd2 Kb8 Bg6 Ka8 Rd7 Rd3 Rd6 Rb3 Rd1 Rd3 Rd2 Rd7 Rd5 Rd6 b5
1rrb2Q1/b2NN1Nb/n4q2/Pp1R1Br1/1B4r1/3B2nK/B2r1k2/RR3rr1 w - b6 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kf6 g4 Kg5 Kg2 c5 a4 f5 e4 h5 a5 b3 d6 c4 e5 h3+ Kh2 Kh4 d5 b2 d7 f3 e6 f2 d6 c3 e7 f4 e8B f3 g5 c2 g6 Nh6 g7 Qf6 d8N Bf5 g8B Na6 d7 Bh7 Ra3 Rb8 Bef7 Be7 Qd5 Nf5 Be6 Ng3 Bg2 f1R Qc5 f2 Qd5 Rd1 Bg4 f1R Ra2 Rd2 Ne6 Bd8 Nc3 b1R Bf5 Rb4 Ra1 Rg4 Ba3 c1B Bb4 Rc8 Bf7 Rhg8 Qb3 R8g5 Ng7 Bb2 Nd5 Bd4 Ne7 Ba7 Ne2 Rb8 Bge4 Rc1 Bd3 Rc5 Kg1 h2+ Kg2 Rcc8 Rhb1 h1R Bd5 Rf1 Qa2 Bdb6 d8R Bc7 Rd7 Bcb6 Bg8 Bd8 Rd5 Rg1+ Kf3 Kh3 Nc3 h4 Na4 Kh2 Nb6 h3 Nd7 Kh1 Bf1 h2 Bb5 Re1 Bd3 Kg1 Bf7 h1R Ne6 Rg8 Ng7 Rg5 Kf4 Kf2 Qc4 Rhf1 Be6 Rh5 Kg4 Rg5+ Kh3 Rc1 Qg4 R1c4 Re5 Rcc1 Ba2 Rg1 Qc4 Rcf1 Qf7 Rg4 Rd5 Rg5 Ne8 R8g6 Ng7 Rg4 Qf8 R6g5 Qg8 b5
B2kr3/2Rb1q1R/nb3NKb/1pqPp1p1/2B1N1QB/1p3N2/5n1B/2q1R2r w - e6 0 1 illegal: Lossy FEN conversion
2Q1NbN1/b1b2K2/8/pn2BPp1/k2rnb2/pN1qQn2/2NpN2R/1B1R4 w - g6 0 1 legal: proof: e4 a5 b4 b5 c4 c5 g4 h5 a4 bxa4 b5 hxg4 e5 Ba6 e6 fxe6 d3 e5 b6 e4 Nh3 Bb5 cxb5 c4 Ng1 c3 Bh6 Ra7 Bd2 Rc7 Bc1 Rc4 dxc4 Rh6 Bg5 Rh5 Bc1 Rh8 Ke2 e5 Ke3 d5 f4 Kd7 h4 g3 h5 c2 c5 g2 c6+ Kd6 h6 Kc5 h7 Kb4 f5 a3 b7 Qc8 c7 Nc6 b8N Nd4 b6 Qa6 c8Q Bd6 b7 Nf6 Qe2 Qc4 Rh2 Rd8 h8N Ka4 Ng6 Bf8 Na6 Nb5 Bb2 c1B+ Nd2 Rd6 b8N d4+ Kf2 e3+ Kg3 d3 Nc6 e4 Kf4 Rd7 Kg5 Rd4 Nge7 Qb3 Qe1 e2 Kg6 e3 Ng8 Ne4 Ncb4 Qc4 Qg3 e1B Nc2 e2 Qe3 Bg3 Nb3 e1N Nc7 Nf3 Ne8 Bc7 Ne2 g1B Rb1 Bd2 Rd1 Qc3 Kf7 Bf2 Qh6 Bdf4 Bg2 d2 Qb6 Rd6 Qe3 Qd3 Be5 Rd4 Bf1 Bg1 Ng3 Qc3 Bd3 Bf2 Ne2 Bg1 Nca1 Bf2 Bc2 Qd3 Bb1 Rd8 Nc2 Bg1 Qf2 Rd6 Qg2 Ba7 Qg1 Rd4 Qe3 g5
1k2nb1N/1rqrBQ2/3B3R/1r4pP/2B1K2p/1bN3b1/rn5R/1B1nbB1Q w - g6 0 1 illegal: No possible last move, all moves rejected
nkq1Q2Q/8/1b2p1p1/1RpPN1q1/r3B1rQ/Q1N2b2/1n1KRp2/nQ2B2n w - c6 0 1 illegal: Lossy FEN conversion
1kNR1r2/1N4p1/RBr3q1/4pPn1/2B3NK/3nQ1Qb/B2qB3/1q2qr1b w - e6 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 Ne2 f5 exf5 c5 Nf4 cxd4 Ne6 Rh4 Nxf8 Rh8 f4 b5 Kf2 d5 Kg3 b3 c4 b2 a4 d3 h4 d4 f6 d2 c5 d3 a5 b4 h5 b3 c6 Nh6 f5 Qd5 a6 Kd8 f7 Kc7 a7 Bd7 Qe1 d1R Qe3 d2 Nc3 b1Q Ne4 b2 Nf6 Ng8 h6 Qe6 h7 Qd6+ Kh4 g3 Bc4 g2 Ne6+ Kc8 f8N g1Q c7 Bc6 Nd8 Rf1 Ng4 d1B Nb7 Na6 Nd7 Nc5 Ra6 Nh6 Bd2 Bg2 Ba5 Qd2 Bb6 Rf8 h8Q Bdf3 Rh2 Rb8 a8B Nd3 Qh7 Qbc1 Qg6 b1Q Qd6 Rf6 Qg3 Bh3 Ba2 Qde1 Rd2 Rc6 Nde5 Qh1 Nf7 Qcc2 Nf2 Rc4+ Qgf4 Qcb2 Nc5 Nb4 Bd5 Qg2 Nb7 Rc6 Bdc4 Qg6 Qg3 Bh1 Ng4 Q2c2 Rd5 Qcd2 Be2 Nd3 Nfd6+ Kd7 Rd4 Rf8 Bc4 Nf7 Rd5 Rc5 Nc8+ Kc6 Ba2 Ng5 Rd8 Rc2 Ncd6 Rc1 c8B Rc2 Bce6 Rc3 Bd4+ Kc7 Bed5 Rc6 Bdc4 Ne5 Nc8 Kb8 Rd6 Nd3 Bb6 Rf3 Rd7+ Rf4 Rd6 Rf1 Rd8+ e5
2N2N1Q/1R1r2Br/K4r1r/BPp1kn2/B3nr1R/3Qq1b1/3p3n/R3B2r w - c6 0 1 illegal: No possible last move
Bb3R1n/2B2Q2/K3NRr1/B1Pp4/1qb3N1/krp2R2/3R1rrq/2nr2Qr w - d6 0 1 illegal: Lossy FEN conversion
1b3k2/q2R2r1/BR5Q/1NpPNNbb/8/NrB1b1pp/1NK2N2/rb4nn w - c6 0 1 illegal: Lossy FEN conversion
2BR1q1n/nB5Q/bpb3p1/1BR2pP1/2K2k1q/3nrnN1/2B2B1r/r1B4N w - f6 0 1 illegal: manual, before black's last move Pf7-f5, the promoted bishop on g8 is trapped
3q2nB/1q1BBBp1/Np1QrbR1/2p1BRPp/K3p3/1bq1n3/4k2N/n1B5 w - h6 0 1 illegal: Lossy FEN conversion
bRBB4/1n1bQ3/BR6/2pPr1Rr/1b1q2Nk/RK3n2/2r3n1/rqB2R2 w - c6 0 1 illegal: Lossy FEN conversion
2B1B1Q1/Rqp3n1/1BQ1Q3/nB1rb1Pp/n2b1b2/3KN3/1QRqrb2/6k1 w - h6 0 1 illegal: Lossy FEN conversion
1N4b1/1q1n1R1n/1k1p1nbr/1npPN2N/R1B1Nbr1/R1r2K2/1pN5/B5R1 w - c6 0 1 illegal: Lossy FEN conversion
2R1rR1R/R1B4N/3n4/2b1Pprk/2r4b/5bnB/qB1b3K/1rBB1r1B w - f6 0 1 legal: proof: d4 b5 f4 g5 a4 e5 fxe5 c5 axb5 cxd4 g4 Be7 Nc3 Bf8 Nd5 h6 Nf4 gxf4 g5 h5 Qd3 Nh6 Qf3 Ng8 Qg4 hxg4 Kf2 d5 Kg2 a5 b4 f3+ Kg3 f2 h4 d3 e4 a4 c4 d2 h5 d1R g6 a3 c5 d4 c6 d3 b6 a2 g7 d2 c7 Na6 b7 Nf6 g8R Ke7 b8R Bh6 b5 Bb7 c8B Qa5 e6 Nc7 b6 Nb5 Rg6 Nd6 Nf3 Rg8 Bh3 f1R Kh2 Qa7 Ng5 g3+ Kg2 Rde1 Nh7 d1R Rg5 Rd4 Rc5 Bg5 h6 Bh4 Rc2 Bc6 Bb7 Rg5 Rf8 Nh5 Rh2 Bd5 Rcc8 Rc4 Bc6 Qa3 b7 Rd1 b8B Qa4 Rb1 a1B Bc7 Bc3 Rb7 Bd2 Ra7 Qa2 Ba4 Rde1 Bd1 Rb8 Rh1 Rb1 Rh2 Rf6 Rh1 Re2+ Kg1 g2 Kh2 Rff2 Nf6 Re3 h7 Ng3 h8B Rf1 Nh7 Ree1 Bhb2 g1B+ Kg2 Bc5 Kh2 Re5 Ng5 Kf6 e7 Kg6 e8B Ba8 Nh7 Rg5 Bc6 Re3 Bb3 Kh5 e5 Rd3 Bcg2 Bf3 Bd1 Rb3 Rg1 Rb8 Bh1 Ngf5 Rg4 Ng3 Rh8 Ra8 Rcf8 Re8 Rd4 Ndf5 Rd8 Nd6 Rc8 f5
B5kn/P1R3p1/qBrN1RnK/3Pp1NB/3N4/1Q2q1q1/1R2n2q/r3b1n1 w - e6 0 1 illegal: Lossy FEN conversion
8/p2qQ1q1/1N3nQq/1Pp1R3/qN2Bbnr/B1B1N2k/2PrpK2/n4R1b w - c6 0 1 illegal: Lossy FEN conversion
2R4R/p2k4/n1b1p3/Ppq4K/1b1n1rn1/3N1bP1/pR1b1BqQ/N1Q3BB w - b6 0 1 illegal: Lossy FEN conversion
k2q1B1r/N2Q1b2/p1p3BP/Pp1n1NrN/R1K2p2/Q1p4p/8/1rqR1Q1n w - b6 0 1 illegal: No possible last move, all moves rejected
8/Rqk1qn1K/RR3Bn1/rbPpb2Q/2R1B1b1/bqN3r1/2b1PN2/2R3r1 w - d6 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Ke4 f5+ Ke5 f3 b4 f2 c4 f4 Kf5 d3 Kg6 f3 g4 h3 g5 a4 b6 h4 b5 d2 b7 h2 b6 a3 Qb3 d1Q Qb4 a2 Qb2 h3 Na3 Ra5 Qb1 Qe7 Bf4 Kd8 Qc2 Nc6 b8R Nh6 b7 Nf7 Qc1 Rg8+ Kh7 Nce5 g6 Qb3 g7 Kc7 Bg5 Ng6 Bg2 f1R Ra8 f2 b8R Ba6 Rb6 Bb5 Be4 Rd1 Nb1 f1B Nc3 Re1 Rb1 a1B Bf6 Bg2 Rd6 Bf3 Qh6 Bg4 Rda6 Rf1 Qh5 Bb2 Nf3 Rg1 Ng5 Rg3 Rhg1 h1Q Rgc1 h2 Nh3 Qg2 Nf2 h1B c5 Ba3 Bc2 Qb7 R8a7 Be4 Rb2 Bef5 Be4 Rg1 Bh1 Bc2 Be4 Qd8 Rbb1 Bd6 Rb2 Be5 Rbb1 Re8 g8R Re6 Rb2 Qe7 Rga8 Rc6 Rb6 Rg3 Raa6 Rd6 R8a7 Rd1 Ra2 Rdg1 Rb2 Qbe6 Rb4 Qb3 Rc4 d5
4r1qn/3Nnq2/3BnN2/5Pp1/2QN1b2/RRr3Nq/b1Pkb1q1/K2B1r1N w - g6 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Ke6 f4 Kf5 b4 e5 h5 d5 b6 a5 b7 a4 h6 d3 Kc3 g3 Kb2 e3 b5 Ke4 b6 g2 f5 a3+ Ka2 d2 h7 d4 Rh2 d3 Ne2 g1Q Bb2 Na6 b8N Ne7 b7 Nc5 Bh3 Qg2 Nf4 e2 Qc1 Ke3 Ng6 e1N Bg4 e4 Be2 Ne6 Bh5 Nf3 Qh1 d1B Rh4 d2 Qf1 Nfg5 Ne5 Be2 Nc3 d1Q Nbd7 Kd2 b8N e3 Nbc6 Nf7 Rb4 Ra4 Rb8 Rc4 Nd5 Rc3 N5f6 Qc1 Qf4 Qch1 Rb3 Qhh3 Neg4 Bca6 Nd4 Bac4 Qf1 Rg8 Kb1 Nh8 Nf2 Qe8 Nh1 Qf7 Ka2 Bd5 Rb1 Bdc4 Ka1 a2 Ba3 Bd5 Bd6 Bdc4 Kb2 a1R Ra3 Ba2 Bg4 Bec4 Bd1 e2 Be5 e1Q Bd6 Bb5 Qc4 Qeg3 Nh5 Qa8 Ndf6 Qgg2 N5g3 Nc8 Bb8 Bd6 Bc7 Bf4 Bd6 Ng6 h8N Re8 Bc5 Qad5 Bd6 Qg8 Nf7 Nce7 Ne5 Nh8 Ned7 Ba6 Qc8 Be2 Qa6 Nd8 Qc6 Qdf7 Qc4 Ne6 Nb8 Nhg6 Nbd7 Bh5 Bg4 Nh8 Rf1 Rd3 Rf3 Rd1 Re3 Rf1 Bd1 Be2 Ka1 Rb3 Re5 Rbf3 Rb5 Rc3 Rbb3 g5
6Nr/1N3kN1/K2pRpq1/1Pprq3/N4p1R/BPpp2pB/1B5b/3Q1n2 w - c6 0 1 illegal: Other
nRb2k2/2NR4/2R3Bn/1prPp1b1/1P1r2B1/pBq3Qb/1q2Kn1B/4N2r w - e6 0 1 illegal: Lossy FEN conversion
1br1R2R/n1P1r2p/1p3BpQ/k1Pp1B2/n2qBN2/3R1N1n/B3p3/nb5K w - d6 0 1 illegal: No possible last move, all moves rejected
2rRn2B/k5N1/2p1N1r1/bpP1qB2/N5p1/p4QB1/1p3K1P/RqrBr2n w - b6 0 1 illegal: Lossy FEN conversion
2Q5/Qp3B1p/1N2n2b/1PpR1Q2/1bnnq2b/1n1N3Q/R1P1rB2/K2k4 w - c6 0 1 illegal: Lossy FEN conversion
knr3Q1/P4B2/1Bb3R1/2nQpP1n/5Brr/2rq1r1q/NK1B4/R2q1N2 w - e6 0 1 legal: proof: g4 d5 e4 dxe4 f4 g5 b4 a5 h4 gxh4 c3 f5 gxf5 axb4 Ba3 Bg7 Bc1 Bd4 cxd4 Kf7 d5 Ke8 d4 Kd7 Kd2 b5 Kc2 c5 a4 Kc7 a5 Kb7 d6 h5 f6 e3 d5 c4 f7 e2 f8B e1N+ Kb2 h3 f5 b3 d7 b4 d6 h2 Bd2 c3+ Kc1 h4 Nh3 c2 Ra4 Nf6 Ng1 h3 Qh5 Rg8 Bf4 b2+ Kd2 c1R Qd1 b3 Ra1 Rg4 Nf3 Nd3 Nc3 b1Q B8h6 b2 Na2 Nh5 Rg1 h1R Nh2 Nc5 Bc4 Rc3 Nf1 h2 a6+ Ka7 Bf7 Bb7 Qb3 Bc6 Qd5 Qe4 Rg3 b1R Bhg5 Qh8 d8B Rbb3 d7 Qh7 Kd1 Qd3+ Bd2 Qh6 Bf4 Qd6 Rg2 Qh3 Ba5 Rf3 d8Q Rbc3 Qg8 Qd7 Qe6 Qd3 Rg1 Nbd7 Qd6 Rc8 Bb6+ Ka8 a7 Nb8 Qd4 Rh4 Rg6 Rg1 Qe4 h1Q Qc4 Rgg4 Qd5 Rb3 Kc1 Rc3+ Kb2 Qg1 Ne3 Qd1 Nf1 e5
2bn1NQ1/5B1N/1n2b1K1/1npPr2n/4k3/n3P1bQ/rRq1Q1qB/Qr2R3 w - c6 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 g4 f5+ Kf3 Kd5 b4 h5 d4 a4 b6 a3 b7 h3 g5 a2 g6 h4 e3 h2 b5 c3 b6 c2 g7 h3 Bb2 c1N Qd2 Nb3 Qd3 Nf6 Bg2 Rh5 Nd2 Nfd7 Nc4 Bd6 Nd2 Nc6 Rd1 a1N b8Q Ra2 b7 Nb6 Bc1 Nc2 Nc4 Na3 Ne5 Qh4 Rf1 Nd8 Qa7 Qf6 b8Q Qg6 Bb2 Rg5 Kf2+ f3 Re1 f4 Nd7 Re5 Qe2 Qc2 g8Q+ Ke4 Nf8 Be6 d5 Nd4 Qc8 Ndb5 Rb1 Bb4 Bd4 Bd2 Rb2 Be1+ Kf1 Bg3 Bc5 Kf5 Bd6 f2 Nf3 Ke4 Rg1 h1R Ng5+ Kf5 Ngh7 h2 Bh3+ Ke4 Kg2 f1N Bg4 f3+ Kh3 f2 Qa5 Bf4 Kh4 Ng3 Bh3 Nh5 Re1 f1B Bg4 Bh3 Qd7 Nf6 Bh5 Rg1 Qa6 h1Q Bf7 Qg2 Qa5 Bhf5 Qc3 Bg3+ Kg5 Bg4+ Kh6 Nh5 Kg6 Qb1 Qc1 Qc2 Qa1 Rh1 Qe7 Rf1 Qh4 Bc8 Qh3 Bge6 Rc1 Rf4 Rg1 Rf1 Rh1 Rd1 Re1 Rb1 Qd2 Bf2+ Kh6 Rg5 Bh2 Bg3 Qe2 Re5 Kg6 c5
2QrBbn1/P2n1q2/b1b2rq1/1R1Pp1R1/N1kq1BQ1/4K3/6b1/1rN2RRb w - e6 0 1 illegal: Lossy FEN conversion
2NB3B/R3N1q1/5bpn/PpKB1p2/k2n1bP1/6nB/2q1rRQq/1rrQ4 w - b6 0 1 illegal: Lossy FEN conversion
1QN4R/1rq1bBR1/1q4K1/pP1n4/nkBPb1pB/3p2r1/2B3Qr/b2qN3 w - a6 0 1 illegal: Lossy FEN conversion
1nN2R2/1b1P3n/B2b1bpQ/KPpk1q2/1Br2B2/5np1/B2r1QrR/3N3q w - c6 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 d4 Ke6 Kd2 a5 Kc3 f5 h4 f3 e4 f2 h5 f4 d5+ Ke5 d6 a4 h6 g6 b6 f3 d7 a3 b7 a2 h7 g3 Qd4+ Ke6 e5 Bh6 Nh3 Bf4 Ng5+ Kf5 e6 Bd6 e7 Nf6 Ne4 Ke6 Bf4 Qf8 e8B Ra7 Qb6 Kd5 Rh2 Qf7 Bd3 f1Q Qf2 Qh1 Bf1 Rf8 h8B Nh7 Be2 Qf5 Bf7+ Kc6 Bf1 Ra5 Bd4 Rd5 Bc5 Rd2 Bg8 Rf7 Bd3 Kd5 Be2 Na6 b8Q Bb7 Qf8 Nb8 Bd3 Qf1 Qh6 Qh1 Qe1 f2 Be2 f1N Qf2 Bf8 Nd6 Be7 Nc8 Bf8 b5 Bd6 Kb4 c3 Ka5 c2 Bb4 c1R Bg4 Rc4 Nc3+ Ke6 Rc1 a1B Nd1 Bf6 Rc3 Kd5 Rf3 Ne3 Bh3 Nc2 Bg2 Ne1 Re3+ Nf3 Re8 Na6 Rf8 Nb8 Qf1 Ke4 Qf2 Re7 Bf7 Re5 Be6 Rec5 Bg8 Rcc2 Bb3 R5c4 Ba2 Kd5 Rf7 Ke4 Qh3 Re2 Qa7 Ba8 Qh6 Rcd2 Bf1 Ng1 Rf8 Rf2 Be2 Rg2 Qf2 Bd5 Be3 Ke5 Bf4+ Ke6 Bd3 Nf3 Be4 Ba8 Bg5 Ke5 Bb7 Ke6 Ba6 Kd5 Be3 Bb7 Bf4 c5
Q1qnb3/n6K/1N2Bprq/RPp1Q2n/7k/p1Q1P1bp/3Q1Br1/NrR5 w - c6 0 1 illegal: Lossy FEN conversion
B2r3k/BNn5/QNp1rKP1/B5Pp/1npb3n/2Q4R/p5Bq/3b1Rnn w - h6 0 1 illegal: Lossy FEN conversion
1n1Q1B2/3q3k/NPB3b1/r1R1Ppq1/3bp2B/pN3b1r/3K1nBp/b2RQ3 w - f6 0 1 illegal: Lossy FEN conversion
1Rbn2R1/5Rr1/2Q1q3/1pP2bN1/NP1K4/krN2r2/r1qRBp1b/n3rR2 w - b6 0 1 legal: proof: g4 c5 f4 h5 gxh5 e5 d4 exf4 b3 cxd4 Qd3 a5 Qd1 a4 Bb2 a3 Qd2 axb2 Qc1 Be7 Qd1 Bf8 Kf2 Ke7 a4 Kd6 c4 Kc5 e4 Kb4 h4 g5 e5 f5 e6 d5 c5 f3 a5 f4 h6 d3 h5 d2 h7 g4 e7 d4 e8R d3 h6 Nf6 a6 Qb6 a7 Qe6 Ne2 g3+ Kg1 f2+ Kg2 Ng4 Kf3 g2 Nc1 g1R Rh4 Ne3 Nc3 b1B Rh2 Nc2 N1a2+ Ka3 b4 Rg7 Re7 Nc6 Na4 Nd8 Rf7 Bd6 Be2 f1R+ Rf2 Be5 Ke4 f3 Rh2 Rf2 Qh1 d1R Qg2 Rhg8 h8N d2 h7 Re1 Qg6 d1Q N2c3+ Ba2 Rc1 Na1 Qg2 Qdb3 Qh1 Bc7+ Kd4 Bb1 Rg2 Bf5 Qh6 Rb8 a8R Bh2 Rd1 Qb2 Rd2 Qbb3 Rg1 Qc2 Rf1 Rfg2 Qg6 f2 Qf6 Rf8 Qh6 R2g3 Qf6 Bd7 Qh6 Rc8 Rb8 Rh3 Qg6 Rc6 Qg2 Ra6 Qc6 Ra8 Rf6 Bc8 Nf7 Rhg3 h8R Ra5 Ng5 Rff7 Na2 Rb3 Rg8 Bh7 Rh6 Rff3 Nb2 Bf5 Rf6 Ra4 Nc3 Ra6 Nd5 Ka2 Rf7 Ra7 Na4 Ra5 Nab6 Kb2 Nc3 Ra2 Nba4+ Ka3 Qd5 Bh7 Qe4 Bf5 Qc6 b5
2Q1b2N/1B1rb3/3B2Qb/1Pp5/1R1qbrP1/3k1p2/pB3R1B/1bKB2nn w - c6 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 Na3 gxh4 Nc4 exf4 e4 Ba3 Ne3 fxe3 Ke2 Bd6 Ke1 Bf8 b4 Kd7 d4 Kd6 g4 a5 b6 h5 b7 f5 b5 e2 Kd2 e1B+ Kc2 f4 Rb1 h3 Qd2 h2 Rb3 h4 Nf3 h3 Bb2 a4 Be2 a3 Rf1 h1B Bd1 h2 Rf2 a2 Qd3 Rh7 Rb4 Nf6 Kc1 Bd7 Ng5 Nc6 b8B Be7 Ba7 Nh5 Bb6 Be8 e5+ Kd7 d6 Ra4 d5 Ng3 Qe4 Nd4 Qg6 Nf3 Nf7 Ng1 Nh8 Be4 B6d4 h1B e6+ Kc8 d7+ Kb7 d6 Bb1 Bdc3 Bhe4 Be5 f3 Bf4 Nh1 Bh2 Qa8 d8Q Kb6 d7 Kc5 Qb8 Qd5 d8B Qd4 Qc8 Rg7 Rf1 B1h4 Rf2 Bf8 Bg5 Rd7 Bgf4 Bd8 e7 Bh6 Rb3 Kc4 Rb4+ Kd3 Qf6 B8g6 e8B Bh5 Qg6 Be7 Bf7 Bd6 Bd5 Be7 Qg7 Be8 Qg6 Ra6 Bb7 Rf6 Qg5 Rf8 Bd6 Rf4 Qg6 c5
1NK3nb/qQ4RN/1R4p1/nP2kpPR/4r1r1/RN2b3/p1Q1B1b1/1rq2q2 w - f6 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Be3 cxd4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 a4 b4 d3 c4 a3 b6 d6 b5 g2 h5 f3 h6 g6 c5 f2 b7 d2 h7 Na6 b8N Qb6 c6 Qd8 c7 Qd7 Nf3 g1B Qc2 d1Q Rh5 Bg7 Nbd2 Qc1 Nb3 Nb4 Ng5+ Kf6 e3 Nc6 Kd5 Na5 Be2 f1Q e4 Be3 Ra2 Ba6 c8Q Qa7 Q8c6 Bb7 e5+ Ke7 e6 Kf6 Rb2 a2 e7 Bh6 e8R Bg7 Na6 Rc8 Nb8 Ba8 Re7 Re8 Rb7 Re4 Qb6 Nc4 Kc6 d5 Kc7+ Ke5 Qa6 d4 Kc8 d3 Rb6 d2 Qb7 d1R Rb1 Re1 Rb2 Na5 Rb1 Qb2 Rd1 Bf6 Rd4 Bg7 Ra4 Rb1 Ra3 Qbc1 Ne6+ Kf6 g5+ Ke5 Nf8 Rg4 Qd7 Bg2 Qdc6 Nh6 Qb7 Rg8 h8R Bf6 Rh7 Rh8 Rh1 Ng8 Rg7 Rhh4 Rh3 Re4 Rh1 Rhf4 Rh5 Rg4 Rgh7 Bh8 Rg7 Bf2 Nh7 Bc5 Bc4 Be3 Be2 f5
Q1nbR1B1/1q1N4/N1r1p1q1/k3NRPp/b1pRP1rN/2qr1n2/3b4/QK6 w - h6 0 1 illegal: Lossy FEN conversion
3Bb3/qrnQ4/P2r1p2/QR3Pp1/1bQNKbpr/1Nr2R1N/1n1n2Nk/8 w - g6 0 1 illegal: Lossy FEN conversion
Q1b2b2/1NR5/4KQ1n/1p1pPQpp/qrN3r1/N2B4/Nn1P3p/2R1bq1k w - d6 0 1 illegal: Lossy FEN conversion
Nr3k2/NP4p1/1b2r2B/1Ppn2N1/bq2BpN1/7K/r1RQ2b1/N2nr2N w - c6 0 1 illegal: Lossy FEN conversion
1Qbn1N2/qr3bNq/5RN1/NkPpNR1p/rb2N2p/b3q3/2KP4/4n2B w - d6 0 1 illegal: Lossy FEN conversion
2nR4/6N1/3QPR2/1kb3Pp/1p3R2/2bb1B1p/r4QrK/1Rn1RRb1 w - h6 0 1 illegal: Lossy FEN conversion
rR3N2/b4k2/pq4b1/K1pP1n1B/1pp1Q3/N2PPR2/r3q1pB/4q1BR w - c6 0 1 illegal: Lossy FEN conversion
1N1qb1bR/6kP/KRp1B3/2b1Ppb1/1r1n1Prb/Bq3Q2/1n2Bb1R/1N6 w - f6 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 Qb3 hxg4 Qa4 Ra5 Qd1 Ra8 h4 g5 a4 b5 e4 d5 Ke2 d4 Kd3 c6 h5 b4 Kc4 c2 e6 g3 e7 d3 f3 b3 a5 g2 a6 b2 h6 d2 a7 g4 e5 g3 Qe2 d1Q Bd2 c1B Ra4 Nd7 Ra5 Qb3+ Kd4 Rb8 a8R Rb4+ Qc4 Nb6+ Kc5 Bd7 Qe2 Nc4 Nh3 g1B+ Nf2 g2 Rb5 Bh2 Bf4 g1B Rb6 Bg3 Rh2 Bh4 Be3 Rh7 Ne4 Rg7 Qd1 Rg4 Be2 Bd2 Bf2 Bdg5 f4 Qg3 Bd4 Bf2 Qh1 Qb3 Qf3 Nf6 Rab8 Nh5 Be3 Ng7 Rc8 Bfg3 Bc1 Nf5 Rcb8 Nd4 Rc8 Bf5 Ra8 Bf2 Rab8 Kd7 Nf6+ Ke6 Nd7 Bh7 Ra8 Kf5 Nb8 Kg6 Nc3 b1B Ba3 Bf5 Nb1 Nd6 e8B Bg8 Bd7 Kh7 Bc8 Bd7 Qd5 Be8 Be6 Bg7 Qg2 Nc4 Qf3 Nb2 Rb5 Qd6+ Kb6 Qd8+ Ka6 Bf8 Rb6 Bd6 Ra7 Bc5 Re7 Bd7 Re8 Kg6 Rf8 Be8 Nd2 Bh7 Rh8 Bg8 h7 Kg7 Nb1 f5
Kr6/1pr5/3N2P1/b1nPpPB1/R2N1N2/bR3bBB/3k1p1b/2n1bQbq w - e6 1 2 illegal: Lossy FEN conversion
kb1B3N/3Q1N2/p7/PpR1Pn2/rp2r1Nq/P2nrBB1/3nbpKb/5R2 w - b6 0 1 illegal: No possible last move, all moves rejected
r1Q2q1R/1n2RN2/pqK1b2N/rR1pP1n1/p1p1b3/n1P3N1/P5B1/kr4B1 w - d6 0 1 illegal: Lossy FEN conversion
2r1K3/2b5/B1kqpR2/pnrbP1Pp/b1N2QB1/8/n1N1nPp1/qR3B1R w - h6 0 1 illegal: Lossy FEN conversion
R2nKN2/B2Bb1r1/k2p4/3QpPPp/r3B2R/1q4n1/bRp1P2q/r4N1q w - h6 0 1 illegal: No possible last move, all moves rejected
1nBK3k/B5np/5P1q/pQpPP2B/1r1p3N/R3nN2/r1p1R3/bR1b1r2 w - c6 0 1 illegal: No possible last move, all moves rejected
qB5n/2b2Qqr/2p3b1/NBnPp1Kp/3rP1pp/b4RPR/r6R/3kB1N1 w - e6 0 1 illegal: No possible last move, all moves rejected
5R1n/2r1p3/Q1B1B2P/Pp2k3/3Nb1r1/1nrQ1qqr/4P1N1/1Nn1R2K w - b6 0 1 illegal: Lossy FEN conversion
2bqn1B1/N4nb1/P4R2/2pPpQr1/K1PR2bB/2q2BQ1/kq4N1/2q4n w - c6 0 1 legal: proof: f4 a5 b4 axb4 e4 d6 e5 dxe5 g3 exf4 g4 f3 Nh3 f5 Ng1 g5 gxf5 b5 h3 g4 h4 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Bb7 Ba3 Ba6 Bc1 Bc8 c4 Kd7 d4 Kc6 Kd2 h5 Kc2 e5 Kb3 h4 a4 h3 a5 f2 a6 g3 f6 h2 g6 g2 f7 Rh5 d5+ Kc5 g7 Rg5 Nc3 Nh6 g8B Nd7 Qf3 Nf6 Nce2 Ne8 Ra3 Bg7 Nh3 g1Q Nd4 Qg3 Bd3 f1Q Be3 Qc1 Rf1 h1N Qg2 Qge1 Qg3 Qec3+ Ka2 Bg4 Rf6 Bc8 Rb3 Bg4 Rb2 b3+ Ka3 b4+ Ka4 Bc8 Rb1 b2 Bf2 b3 Be2 Bg4 Ra1 b1B Nf4 b2 Bf3 Bbf5 Ng2 b1Q Ra3 Bc8 f8Q+ Nd6 Be1 Qbb2 Nb5 Nf7 Na7 Kd4 Ra1 Ne8 Ra3 Kd3 Ra1 Kc2 Rb1 Q1d2 Rd1 Qdc1 Rd4 Kb1 Bf2 Nh8 Qf7 Ka2 Qe6 Nf7 Qf5 Be6 Qgf4 Bc8 Bh4 Q1e3 Qh2 Qec1 Qg3 c5
5nqB/2Nq2qQ/1P1PQq1R/pP1Q4/1n1r2R1/br3B1K/4N3/1bn1k1rb w - a6 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Ke6 b4 Ke5 g4 Kd4 Kg2 h5 g5 c5 g6 f5 d3 h3+ Kh2 h4 b6 f3 b5 f4 e5 f2 g7 f3 e6 c3 e7 c2 e8Q c4 Ra5 c3 Bg5 c1N Qde2 c2 Qc6 Bf5 Ra6 Ne7 g8Q Ng6 Na3 Qd7 Nc4 Kc3 d4 Ba3 d5 Nf8 Qce6 Nc6 Nd2 Nb4 Qgf7 Rd8 Bg2 f1Q Qfg6 f2 Qg4 Qc4 Qe1 f1Q Qge4 Qd4 Qh7 Q4g7 Qg4 Bg6 Qe8 Qff6 Nf1 Qg8 Ne3 Kd2 Qf4 Ke1 Qd4 Qfc6 Qef7 Nba2 Bf1 Qde6 Bh6 Ne2 Qe4 c1Q Qef5 Qb2 Bg2 Nec1 Bg7 Qbc3 Qe5 Bb1 Ra4 Qe7 Re4 Nb4 Rg4 Qg5 Qd6 Qcf6 Qc2 Rh6 Bh8 Q5g7 Qh7 Rg6 Rd4 Rg3 Qfe6 Qe8 Qc5 Rd6 Rg4 Qed7 Nf1+ Re3 Ne2 Rd3 Bf3 Rb3 Kg1 h2+ Kg2 h3+ Kg3 Rc6 d6 Rc8 Qch5 Rc4 Qg5 Rd4 Ne3+ Kd2 Re1 h1R Nd5+ Rf4 Nc7 h2 Qgd5+ Rd4 Nc3 Rf1 Re5 h1B Kh3 Re1 Rh5 Rg1 Ne2 Ke1 Rh6 a5
r1qb2BN/7R/1pB5/2qNpP1R/q1k1PQ1P/1nqb2r1/3Bn1r1/2QK3r w - e6 0 1 illegal: Lossy FEN conversion
Qn1N1Q2/1P2qNR1/n1rb4/1n1p2Pp/P1Bk1q2/b1R2p2/2rr4/B3Kb1N w - h6 0 1 illegal: Lossy FEN conversion
BK1br2B/4N3/1pQ2N2/Q4Pp1/1PRnpqb1/R1bqp3/3rPB1r/1n1k2q1 w - g6 0 1 illegal: Lossy FEN conversion
1K2q3/4P1Nk/1p1R1Bb1/pPq1npb1/P1Rq1Qp1/2n5/rNq1q1B1/1Q1Qr3 w - a6 0 1 illegal: Lossy FEN conversion
1kb1r2q/b1pnq3/3Qbp2/2P1nPp1/5R2/2BKR1N1/NP4r1/nB2N1N1 w - g6 0 1 illegal: Lossy FEN conversion
1nnr1b1k/3q1B2/8/PprP1Q1p/1p1bb1B1/p3B3/1PBb1RKN/1N4R1 w - b6 0 1 illegal: Lossy FEN conversion
b2b1k2/qn5B/r6N/n1PpPp1P/Nr2Q3/bRnnNR2/4nB2/K1Nr4 w - d6 1 2 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 b4 a5 e4 g5 h4 f3 c4 d3 Kc3 d2 Kb2 g3 b6 g2 b5 a4 e5 a3+ Ka2 f2 h5 g4 b7 g3 b6 Na6 b8N Bb7 Qa4 d1N Rh4 Nc5 Ne2 g1B Bf4 g2 Be3 Nh6 Nbc3 Qc7 Rh3 Nf7 Rf3 Ra6 Nd5 Nd6 Nc6 Ba8 Rb1 Qa7 b7 Be7 Nd8 Nc3+ Ka1 a2 Kb2 a1N Nf7 O-O Nc1 Rb8 Nh6+ Kf8 Qc2 Bd8 Qe4 Nab3 Bd4 Na5 Ka1 Bh2 Rb3 g1N Bd3 f1R Be3 Be7 Bd4 Bg3 Bf2 Rd1 Ne3 Bgh4 Be2 Rc8 Bd3 Nge2 b8N Rac6 Na6 Ndb7 Rb1 Rg6 Bc2 Rb6 Bb3 Nd3 Nc5 Rcc6 Na4 Ba3 c5 Bd8 Bg8 Rb4 Bh7 Ra6 Rb3 d5
2qq2N1/1b4N1/n4BN1/QrpPK2n/b2Rn1pB/r1PbRb2/3kP3/2b1N3 w - c6 0 1 illegal: Lossy FEN conversion
3kb1bQ/2R2RnN/4n2B/Ppq3Pq/1bNB4/Nn1p1rn1/1P6/r1N1K1b1 w - b6 0 1 illegal: Lossy FEN conversion
1Q3KRN/1R2B3/R4NP1/b2pP3/q1B1qnr1/nqq2b1p/nPrR1p2/2k5 w - d6 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 h5 c4 a5 b6 a4 e3 a3 b7 f3 c5 d3 c6 d2 g3 a2 c7 f2 Bb5 f1Q Bc6 h3 Qa4 d1Q+ Nd2 h4 Rh2 Qf6 Qa7 Bb4 Bb5 Qc3 Qa6 Qa4 Ngf3 Ba5 Kd6 Ne7 Rg2 h2 Qc6 h1Q Rf2 h3 Qc5+ Nd5 Re2 Na6 b8R Rh4 Ng5 Bb7 c8R Qff3 Qb4 Rg4 Rf8 Nf4 Ke7 f6 Qd6 Nb4 Bc4 Bd5 Rb6 Rc8 Qb8 Qhd1 Re8 Qdb3 Kf8 Qe4 Rb7 Rc6 Nf7 Rc5 Rb1 a1N Nh8 Nac2 Ra1 Na2 Rc8 Na3 Rd8 Qec2 e4+ Kg5 e5 Bf3 Ne4+ Kf5 Nf2 Qe4 Be3 Kg5 Rd2 f5 Re8 Rc8 Bc5 Nh5 Qd6 Rh4 g4 Kf4 g5 Nb1 g6 Qab4 Be2 Qcc2 Qd4 Nac3 Bb5 Bd1 Ng4 Bd8 Ra6 Q4a4 Rc6 Na2 Rf6 Ba5 Qb4 Na3 Re2 Qd2 Be7 Rc2 Rfb6 Qdc3 Nf6 Rg4 Rc7 Kf3 Re6 f4 Rd2 Be2 Ra6 Ke3 Bc4 f3 Kg8 f2 Rd1 Bf3 Qb8 Nf4 Rb7 Re2 Kg7 Rc2 Rd3+ Ke2 Rg8 Ke1 Kf8 Ke2 Re3+ Kd1 Re2 Kc1 Rd2 d5
1br3q1/k1p2NP1/4q1B1/NQPp1q1q/b2B2r1/r6R/1Nq1QPB1/1n1nK3 w - d6 0 1 legal: proof: b4 e5 a4 b5 axb5 g5 h4 gxh4 e4 f6 d4 exd4 e5 f5 Ra3 Ne7 Re3 Ng8 Re4 fxe4 c4 a5 g4 h5 g5 d3 g6 e3 b6 a4 e6 e2 b7 h3 g7 h4 e7 a3 b5 a2 b6 a1R Na3 h2 Nh3 Nh6 Bg2 Nc6 b8Q Ng4 b7 Ra4 Ng1 h3 Bf1 Nce5 Bg5 Ne3 Nb5 R1a3 Qc2 Nd1 Kd2 e1Q+ Kc1 d2+ Kb1 Nf3 Qd3 Qe6 Qa8 Qf5 b8N Ba6 Nc3 Bb5 Kc2 Rb4 Ne4 Ba4+ Qb3 Qc8 Kd3 Qa6 Ne2 Qae6 Bg2 Rg8 Rg1 h1Q Nf4 h2 Qa6 Rh8 Re1 Qg8 Re2 Qe1 Nc6 h1Q Re3 Qh5 Kc2 Qe2 Rc3 Qe3 Na5 Qb6 Kd3 Qbe6 Ke2 Nb2 Nd3 d1Q+ Ke3 Qc2 Bf6 Nd2 Bd4 Nb1 Qb5 Qc5 Qa2 Nd1+ Kf4 Qcd5 Nb2 Qdf5+ Kg3 Kf7 e8B+ Ke7 Rf3 Kd8 Ng5 Kc8 Bg6 Bc5 Nf7 Ba7 c5 Bb8 Qac4 Qhh7 Qe2 Qhh5 Bh1 Rc4 Kg2 Rb4 Kf1 Rc4 Bc3 Rg4 Bd4 Ba7 Qbd3 Kb8 Bg2 Ka8 Qb5 Bb8 Ke1 Ka7 Qb3 Qgh7 Rd3 Rc8 Rh3 Qg8 Qb5 d5
Q1Q5/Pn1q1n2/2R2B1p/3PpBNp/rR2K3/2p1R1nP/bq3rk1/bB3q2 w - e6 0 1 illegal: Lossy FEN conversion
3RbN2/1qR4r/2b3P1/Q3pP1r/B2n3b/bBR4b/B1R2Pn1/1K2kqq1 w - e6 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 g5 dxc5 f5 exf5 Ra7 h5 Ra8 g4 h6 Bb2 Ra4 Bf6 Ra6 Nd2 Ra7 Ndf3 Ra6 Nh4 gxh4 g5 Ra7 g6 Ra8 Bg5 hxg5 Kd2 b5 Kc1 d5 a4 Kd7 c4 Kc6 h6 h3 h7 d4 a5 d3 a6 g4 a7 h2 Qa4 d2+ Kc2 d1B+ Kb1 b3 Qb4 g3 Qc3 g2 Qh3 b4 Qh5 b2 Bd3 Bg7 Ka2 b3+ Ka3 b1Q Ra2 b2 Ra1 Bf6 Ra2 Qc7 Nh3 Bg4 Qh4 Qb7 Qg5 Qg1 Bb1 Bd7 Qd2 Nh6 Nf4 Be8 Ne6 Bh3 Nf8 Ng4 Qa5 Bh4 Bc2 b1Q Ba4+ Q1b5 Rc2 Ne3 Bb3 Q5a6 Rc3 Qab5 Ba2 Qbb1 Bb3 Qbf1 Kb2 Rg8 h8R Rg7 Rg8 Rh7 Rc2 Nd7 Ka2 Ne5 Rc3 Rc8 a8B Nf3 Kb2 Nd4 Rc2 Nd1+ Kb1 Ne3+ Qe1 Kc7 c6 Kd6 c7 Ke5 c5 Ke4 c6 Kf3 Rc3 Rb8 c8R Rh5 c7 Rh7 Qc1 Ke2 Rd8 Rh5 c8B Rh7 Bd7 Rc8 Ka2 Rc4 Qa3 Ke1 Qa4 Qb5 Be6 Nc6 Qa6 Rg4 Rd7 Nd4 Bed5 Qfd3 Rb7 Kd2 Qa5 Qe1 Bd1 Rg5 Bh5 Bd7 Bd1 Rgh5 Rf1 g1B Ka1 h1B Rbc7 Bh2 Ba2 Bd6 Bc6 Qb7 Ba4 Bhc6 Ne6 Ng2 Rd8 Ba3 Nf8 Be8 Rg1 Qee2 Bdb3 Qd1+ Bb1 Qc1 Rd1+ Ke2 Rd2+ Kf1 Rdc2 Qcd1 Rc1 Ke2 Ka2 Qg1 R1c2+ Ke1 Ka1 Qdb5 B1a2 Qbf1 Kb1 e5
qQn3r1/2b1pKP1/3b1Nb1/pP3q1Q/kb1b3B/1R6/1P2bNN1/1R1rN3 w - a6 0 1 illegal: Lossy FEN conversion
4qnQ1/2kBb1qQ/3rqQ1B/Pp2Q3/rP2R1qn/p5N1/3Pb2q/1K1bR3 w - b6 0 1 illegal: No possible last move, all moves rejected
6RQ/1k3P2/pb2q1K1/Q1B3Pp/3NnQ2/4brrP/1Q1NbR1p/n1bbr3 w - h6 0 1 illegal: Lossy FEN conversion
R1rn1R2/N1K1n1P1/p3b3/PbbpP1rp/2q1n1kb/6B1/R3R1Q1/1N2n2Q w - d6 0 1 illegal: Lossy FEN conversion
1R1qBB2/5q2/ppr1pN2/b1qb1Pp1/1B6/NP2N1rk/4P1pn/4nBRK w - g6 0 2 illegal: Lossy FEN conversion
r1r2q2/Rp1R2nb/1P2b3/1Pp1bPR1/2rq1NP1/1b1K2N1/2QB3p/3B2k1 w - c6 0 1 illegal: Lossy FEN conversion
2B2rb1/nR3br1/bK1qN2q/1Pp1qbR1/2Qn3P/2N2rP1/2PB1k2/6Rq w - c6 0 1 illegal: No possible last move
R1bKn3/2pbq1P1/p5PB/Ppp5/N1Nn3N/3b4/k1P1RBQ1/n1b3rn w - b6 1 2 illegal: Lossy FEN conversion
QrrnR3/Pp5r/1P3k2/2pPp1n1/1pb5/4Pp1B/K1pR2B1/BN2Nq1q w - e6 0 2 illegal: Lossy FEN conversion
bk4bQ/4Kpq1/q2RNRrn/1pPb1nnP/1P2QB2/5Pb1/3qN3/2n1B3 w - b6 0 2 illegal: Lossy FEN conversion
4knQ1/1p2P1R1/Bp4N1/2Pp1pp1/n6Q/b3nPP1/3N1Rqp/q2r1rBK w - d6 0 2 illegal: Lossy FEN conversion
n2R4/5NN1/nk1PnQK1/1Pp3R1/3B3r/2bn2N1/1P1n1Pq1/1nR3nb w - c6 0 1 legal: proof: e4 d5 h4 dxe4 a4 a5 c4 b5 axb5 g5 c5 gxh4 c6 a4 Qh5 a3 Qd1 a2 Na3 Na6 Bd3 Ra7 Bb1 Rb7 cxb7 f5 b8R Bb7 Ra8 f4 Rc8 f3 Qxf3 axb1N Qh5+ Kd7 Qd1 Ke8 Ke2 Kd7 Ke3 h5 Kf4 e5+ Kf5 h3 d4 e3 g4 h4 d5 h2 g5 e4 d6 e2 g6 e1N g7 h3 Bf4 e3 Ne2 Rh4 Nc4 Ne7+ Kg5 Nd3 g8N Bg7 Ng3 e2 Qb3 e1N Rg1 h1N Ra4 h2 Ne3 Ndc5 Ngf1 Nd5+ Kf5 Ng3+ Kg6 h1N Qa3 Ne2 Bg3 Ned3 Nh6 Ne6 Qc3 Qg5+ Kh7 Nb6 Be5 Qg2 Ng3 Na8 Rc1 Ng1 Nef5 Bh8 Rg4 Bf3 Ne2 Ng3 Kg6 Nf1 Nf7 Nfd2 Rg5 Bf6 Rg8 Bd5 Neg3 Bc6 Nd8 Kc8 Nf7+ Kb7 Rd8 Kb6 Ng7 Bb7 Bf4 Bd4 Be5 Bf3 Qc4 Bc3 Qf4 Qf1 Qf5 Bh1 Qf6 Qg2 Bd4+ c5
1k1r1QB1/1r2B1b1/4n2N/rn2PpQb/1b3PRK/1q2P2b/3bR1P1/3b1rQ1 w - f6 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 b4 e5 dxe5 bxa4 Nc3 c6 b5 c5 Na2 Nh6 Nb4 cxb4 Qd2 Ng8 Qd6 Qa5 Qd1 Qd8 f4 h5 Kf2 d5 b6 Kd7 b7 Kc7 c3 a5 Rh3 b3 Bb2 a3 Rh2 a2 Rh3 a4 Rg3 h3 Rd3 d4 Kg3 h2 Re3 h1R Rf3 d3 Rc1 a1B Re3 h4+ Kf3 a3 Nh3 a2 Kf2 d2 Ba3 b2 Rb1 Nf6 Qb3 d1B Qc2 Nh5 Qg6 Nc6 Qg3 Ra5 Be7 Nd4 Qg5 Nb5 Rg3 Ng7 Rg4 Qd5 c4 Ne6 c5 Bg7 e3 Qb3 c6 Kb8 Be2 Rd8 Bd3 Bd7 Rc1 b1B Bh7 Bc3 Rc2 a1B Bg8 Bb4 Re2 Bg6 Kf3 Bh5 Nf2 h3 Kg3 h2 Kh4 Bac3 c7+ Ka7 c8Q Bd2 Qc1 Rf1 Nh3 h1R b8Q+ Ka6 Qd6+ Kb7 Qb1 Rhg1 Nf2 Bc8 Qc6+ Kb8 Qe8 Nc5 Qa1 Bf5 Qf8 Ne6 Rg3 Bh3 Ng4 Bc2 Nh6 Rb1 Bf6 Bd1 Be7 Rf1 Rg4 Rc1 Qd4 Rc7 Qd5 Rb7 Qf3 Ra8 Qf2 Ra5 Qg1 f5
1Bb1nQ1b/r1NB1q1b/P4p2/5Pp1/5n2/rN1n1P2/P2n3K/Q1R1rknQ w - g6 0 1 illegal: Other
k7/2q1N3/4p1Rq/3pPpPb/rr4n1/P1n1K3/3QBr1P/nb1QbNRR w - f6 0 2 illegal: Lossy FEN conversion
1Nb1k3/P2q3K/1p1p3n/NPpRB1r1/1Q4pb/Q1PNP1r1/3b4/3qn1rB w - c6 0 2 illegal: Lossy FEN conversion
4rn2/2q2bR1/3pp3/RpPrQK1b/BN3p2/1RPpN2P/3Pqk2/1n1Qb3 w - b6 0 1 illegal: Lossy FEN conversion
4N2K/2Pnn3/qbR3p1/b3PpPb/Nq2N3/PB2k1N1/qB5q/Q1rrq3 w - f6 0 2 legal: proof: d4 c5 f4 cxd4 b4 e5 fxe5 a5 Bd2 axb4 Be3 Qb6 Bc1 Qd8 g4 h5 a3 Ne7 g5 Ng8 Ra2 Ra5 Rb2 Bc5 Rb3 Bf8 Rg3 Ra8 Rg4 hxg4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 b5 h4 g3 c3 b3 e3 b2 h5 g2 e6 b4 h6 b3 h7 d3 e7 d2 e8N Qa5 Qh5 d1Q Rh4 Ne7+ Kf4 Qd2 Qg6 Qa6 Ne2 g1B Ng3 Qh2 Nd2 b1Q Qf6 b2 Rh6 Qa2 Ne4 b1Q Bb2 d6 Be2 Bg4 Bd1 Nd7 Ba4 Rc8 Bb3+ Rc4 Rg6 Rg8 h8N Bh5 Rh6 Qe1 Ng6 Rh8 Ne5 g6 Nd3 Bg7 Nc5 Rf8 Na4 Bh8 Ng7 Rd8 Ne8 Qed2 Rh7 Qd4 Rg7 Qc5 Rg8 Qb4 Bd1 Rc5 Rf8 Kc4 Bb3+ Kd3 c4 d5 Qg7 Rcc8 c5 d4 c6 Rc7 Nec5+ Kd2 e4 d3 Qf6 Bf2 Qd4 Be1 Qg1 Bf2 Qa1 Bc3 Rh8 Qbb5 Rg8 Ba5 Rf8 Qb4 Rh8 Nf8 Ke5 Ke3 Kf6 d2 Kg7 d1Q e5 Qde1 Nce4 Rd1 Rg8 Nd7 Kh8 Qh3 N8f6 Qh2 Rc8 Kf3 Ne8 Bfb6 Rb8 Ke3 Ra8 Rc8 c7 Rd8 Ra7 Rc1 Rb7 Nf8 Rb8 Rdd1 Rd8 Nd7 Rb8 Bd4 Rb6 Bc5 Re6 Bcb6 Rc6 f5
qQ1r4/R4nqb/3N1pB1/Pp1nP2N/3rKPkb/P1RN1p1b/r7/N5n1 w - b6 0 1 illegal: Lossy FEN conversion
3B2b1/Qbr1bq2/K3p2N/1PNpP3/5nnr/1pPRB1B1/1nPq4/bB3k2 w - d6 0 1 illegal: Lossy FEN conversion
K2B4/6pn/1B1R1RPQ/pP1bQ3/4p2r/P2pPRbq/b1knB1rn/6b1 w - a6 1 3 illegal: Lossy FEN conversion
2Q3R1/3P3B/B2q1q1b/1bNrPPp1/1nnrP2k/qb2NKr1/1n2R1P1/2r5 w - g6 0 1 illegal: Lossy FEN conversion
3r3N/1R1QBP2/Rp2q2q/2pPbn2/K1bnkp1P/b6b/3B1PbP/rN6 w - c6 0 1 illegal: Other
2B2n2/2P3Pn/2p1NP1N/R1Pp3k/4p2B/b4q1r/nr1KPnnq/4QrN1 w - d6 0 1 illegal: Lossy FEN conversion
1Q1b4/1pBpp2B/nP1n4/2q1Pp1P/1q5B/k5P1/2pNqRPK/brN4b w - f6 0 1 illegal: Other
2q1QQb1/P3qr1R/k1K2n2/P1BP1BpP/P5r1/1R1N4/n4rn1/q2n3r w - g6 0 1 illegal: Lossy FEN conversion
1n1BN1k1/b6r/Q3P1np/2pPQ2P/2b3n1/PbPB2r1/2RpN2r/5qnK w - c6 1 2 illegal: Lossy FEN conversion
3b4/1N1pn1p1/P3Rr2/nppP1rPk/qPP5/pbB2N1b/2RQ2b1/q3Q2K w - c6 2 4 illegal: Lossy FEN conversion
1b2nnb1/B1p3R1/2n5/Pp1B2r1/1PK3Pn/1P1r2q1/3p1R1P/rkNNq1B1 w - b6 0 1 illegal: No possible last move, all moves rejected
7q/K1N1B1R1/2P1RnpB/1bPp2p1/qnrPR1b1/qr2b3/4NPP1/4qk2 w - d6 1 2 illegal: Lossy FEN conversion
2nqQQ1b/n1r1p1n1/b1r1Nn1R/P2pP1R1/QB1rk3/5p2/2PP3P/1K1n4 w - d6 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 g5 c5 Nc3 g6 Nd5 b3 Nb4 cxb4 Bh3 Qc7 f5 Qd8 Bg4 hxg4 fxg6 Bg7 Kf1 Bh6 Ke1 Bf8 e4 f5 a4 b5 a5 b2 e5 b1R g7 Kf7 g6+ Ke6 Bb2 Kd5 Ba3 g3 Qc1 g2 Kd1 f4 Ra2 b3 Bd6 f3 Rb2 b4 Ne2 g1N Bc7 Nh3 Rf1 Nc6 Rf2 Ra6 Bb8 Rh4 Ra2 b2 Bc7 b3 Ng1 Ng5 Nh3 Rd4 Bb6 Na7 Bc5 Nf6 g8Q+ Ke4 g7 Rc6 Rf1 Ne6 Rf2 Ba6 Ra4 Nc8 Bb4 Rc7 Qh8 Rc6 g8Q Bg7 Qh5 Bh8 Nf4 Ng7 Rg2 Rd3 Ne6 Kd5 Bd6 Rc7 Rh4 Rd4 Nf4+ Ke4 Bb4 Rd6 Qf8 Rdc6 Bc5 Ra1 Ba7 b1N Rg5 b2 Qhe8 Na3 Rh6 b1N Bc5 Nb5 Ne6 Ra4 Qa3 Nba7 Kc1 Rd4 Qa4 Nc3 Bb4 Nd1 Kb1 d5
8/4bbK1/pp1rNQ2/nP1pq1Pp/P5P1/rpQ4Q/2QBr2P/1Nnn2k1 w - h6 0 1 legal: proof: f4 d5 a4 c5 c4 g5 fxg5 Qc7 g4 Bh6 b4 Qd7 d4 Qd8 b5 Bf8 Ra2 Bg7 Rb2 Bh6 Rb4 cxb4 c5 e6 Bg2 Qa5 Be4 Bg7 Bd3 Bf8 Bc4 Qd8 Nh3 Qd7 Rf1 Qe7 Ng1 Qf6 Rf5 dxc4 d5 Qe7 d6 Qd8 Rd5 exd5 Kf2 Kd7 Ke3 Ke6 Kd4 f5 e4 c3 e5 b3 d7 a6 c6 c2 c7 b6 Bb2 c1N Na3 f4 Qf3 Be7 Qh1 f3 Nb1 f2 Ba1 f1R Nd2 Nf6 Ngf3 Ne4 Qg2 Qe8 d8Q Nc3 Nb1 Nd1 Qg3 Rg8 Qh3 Rg6 Bc3 Rf2 Ba1 Ra2 Bc3 Ra3 Bd2 Bd7 c8Q Qh8 Qc5 Be8 Qc3 Bf7 Qc2 Ra7 Qdc8+ Rd7 Q8c3 Rd6 Ne1 Rf6 Nd3 Rf2 Nf4+ Kd7 Qg6 Re2 Qf6 Qg7 Qcg3 Kc7 e6 Qh8 Qe3 Qe8 Ke5 Nc6+ Kf5 Na5 Qef3 Rc6 Q3c3 Kd6 Qb2 Kc5 Qbc3+ Nc4 Qc2 Rd6 Qfc3 Bf8 Kf6 Be7+ Kg7 Qb8 Qcg3 Kd4 Qe1 Na5 Qeg3 Bd8 e7 Qc7 e8Q Be7 Qh8 Qc3 Qg6 Qe3 Qc8 Qe5+ Qf6 Ke4 Qgh4 Kd4 Qhc3+ Ke4 Qc2+ Kf3 Ne6+ Kg2 Q8c3 Kg1 Qhh3 h5
3N4/6r1/2R1PPn1/2PpKpqn/Nn1PB3/r2P4/kr2p1P1/qbB1R1bn w - d6 0 1 illegal: Lossy FEN conversion
k6b/2Q4P/1rR1r1Pn/3pP3/r1n2pPP/qb1PQpRn/3Pb1B1/4K3 w - d6 0 1 illegal: Other
B1N4B/K1R2bb1/2NQ4/4RrPp/bqBp1Nr1/1r1p3q/kNN1r3/7R w - h6 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Bd2 g5 Be3 f4 Bc1 Ne7 h3 Nf5 gxf5 Nc6 h4 g4 Qd3 Ne5 Qd2 Nf7 Qd1 Ng5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kf7 c4 a5 e4 d5 b4 a4 f6 Ke6 b6 a3 c5 a2 f7 Bh6 f8R Qe8 b5 Qc6 e5 Qd7 b7 Qd8 b8N Qf6 c6 Ra3 c7 Qd8 b6 Re3 b7 Rb3 Nd2 Qe7 Re8 Bd7 c8N Bg7 Bb2 Ba4 Bc4 Rf8 Ne2 Rf5 Rc1 a1R Na6 Ra2 Ba1 Rc2 b8N Ra2 Nb4 g3+ Kg1 g2 Kf2 g1R Nc2 Rg4 Nc6 Kd7 Bc3 Qb4 e6+ Kc7 e7 Kb7 N8a7 Kb6 Nc8+ Kc5 Qg1 d3 Qg3 Bh6 Bh8 Bg7 Ba6 Rab2 Nc4 Ra2 Nb2 d4 Bb7 Kb5 Ba8 Kc5 Rg8 Kb5 e8B Kc5 Bf7 Kb5 Kf1 f2 Kg2 f1B+ Kf3 Bh3 Ke4 f3+ Nf4 f2 Re8 f1Q Re6 Rf6 Kd5 Rf5+ Re5 Bg2+ Ke6+ Bd5+ Kd7 Qh3 Kd8 Kc5 Kc7 Kb5 Kb7 Kc5+ Ka7 Kb5 Nd1 Kc4 Bg8 Bf7 Qh2 Rc3 Nb2+ Kb3 Ne3 Ka3 Qg3 Rb3 Qh2 Be8 Bc4 Bf7 Rc3 Ra1 Rc2 Re1 Rc1 Ka2 Nc2 Qf3 Qh6 Qh3 Qd6 Re2 Rce1 Bd5 Re7 Bf7 Rc7 Rh2 Ree7 Re2 Re5 h5
q2n1kbN/p2b3p/N2Rn1BR/1NprPp1R/1b6/3NK2N/1BnBQ3/5r2 w - f6 0 1 illegal: Lossy FEN conversion
3R3B/RnN5/B2n4/1p1ppPnB/2R1NR1r/1k1q1Qr1/R2p1Kbb/1N1n4 w - e6 0 1 illegal: Lossy FEN conversion
R4NK1/6nq/2QqR2r/pN2Ppr1/k5nB/1N2Q3/N2qN2q/Rrb3B1 w - f6 0 1 illegal: Lossy FEN conversion
5NBB/2bpq1R1/2q1q1bQ/1pP1bQBp/1rnR2n1/7B/B2KN3/k4Nr1 w - b6 0 1 illegal: Lossy FEN conversion
4bBKB/p7/QN5R/2N1pP1q/BN1q2Nq/2Qnb3/n3rNkp/r4q1R w - e6 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 c6 f4 e3 g4 e2 b6 e1Q b5 h3 f5 h4 g5 h2 b7 h3 g6 Nh6 g7 Nf7 g8N Qe2 b6 Qf3 Qc2 Qd1 Nf6 Rh6 Na3 Be6 Ng4 Rh8 Nc4+ Kd7 d6 Bh6 Qc3 Qc7 Ra6 c5+ Ke4 Kc6 d4 Bc8 d7 Qg3 d8Q Ne5 Bd2 Nd3 d5+ Kb5 d6 Kc6 d7 Qh4 Qf8 Be3 d8B Qa4 Bc7 Bd7 Be5 Be8 Bf6 Rg8 Qh6 Rg6 Bh8 Re6+ Kf3 Kd5 Be2 Qa2 Bd1 Nc6 b8N Ncb4 b7 Qa4 Nd7 Rd8 b8N Na2 Nc6 Rb8 Qg6 Rb1 Qgf6 Qb4 Ba4 Ra1 Qh6 Qh5 Kg3 Ke4 Ncb6 Qd4 Nb4 c4 Qf6 Qf7 Kh4 Kf4 Nc5 Re4 Ne2+ Kf3 Ng3 Kg2 Bc1 Re5 Nge4 Qg6 Nef2 Re6 Re1 h1Q Rd1 Qh2 Rh1 Qhf4 Bb2 h2 Bg7 Qf7 Bf8 Re4 Qg6 Re5 Kh5 Re4 Qc1 c3 Qd2 c2 Qc3 Re1 Ba1 c1Q Bb2 Re2 Ba1 Qg3 Bb2 Rf4 Kh6 Qf1 Qf6 Qh5+ Kg7 Rf3 Kg8 Qgh4 Qe1 Rg3 Nc4 Qe4 Bb3 Qg1 Qc6 Kf3 Bh8 Qg2 Qa4 Qd4 Rh6 Qgh3 Qa6 Rg1 Qd2 Ra1 Ba4 Qf1 Qc3 Kg2 Nb6 e5
1B1K1b1n/5q1b/n1R2r1k/4QBpP/N2qr2Q/n3qB2/1pB1r1R1/NR2N3 w - g6 0 1 illegal: Lossy FEN conversion
3n3k/1RB3p1/1Q1K3N/2rN1pP1/1R3B1n/qN1q1R2/b1bB1nbQ/r1B1b3 w - f6 0 1 illegal: No possible last move, all moves rejected
Rn1nR3/3Qq2N/4p2n/Np2PpBb/K2Q1Q2/R1b5/B1Rr2kq/2nn3N w - f6 0 1 illegal: Lossy FEN conversion
1BQ1q2B/3bR1rB/p2B2p1/3K1pP1/p1N2pr1/2kBr3/QN2R1B1/q2n4 w - f6 0 1 legal: proof: b4 d5 f4 e5 c4 exf4 cxd5 a6 h4 g6 b5 Be6 b6 Nc6 h5 Bc8 h6 Bg7 hxg7 Na7 bxa7 b5 a4 bxa4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 c5 g5 h5 d6 h4 d5 h3 d7 h2 d6 Kb4 Na3 c4 Bb2 c3 Qd5 c2 Nf3 c1R Nd2 Nh6 g8B Qf6 d8B Nf5 d7 Rc5 Bc7 Rh6 d8B Rh4 Ra2 Ng7 Nac4 Rh7 Bb8 Bd7 Be7 Bc8 Bed6 Rh6 Bh7 Qd8 e3 Bb7 Bd3 Qf8 Re1 Nf5 Bh8 Rh4 Nb2 Bc6 Ndc4 h1Q+ Ke5 Kc3 e4 Rb5 Re2 Rb6 Qe6 Bd7 Kd5+ Nd4 Re3 Qa1 e5 Nc2 Re4 Qe8 Re2 Qg1 Ra1 Rb3 Rae1 Bb5 Qc8 Rg4 Qe6 Qf1 Qc8 Bd7 e6+ Nd4 e7 Ra3 Re5 Nc2 R1e4 Qa1 Re2 Qd8 e8Q Ne3+ Kc5 Rb3 Qe6 Nd1 Kd5 Qe7 Bbc7 Rab8 a8B Qe8 Bc6 Ra8 Bb8 Rb4 Na5 Re4 Nac4 Re3 Kc5 Nf2 Bg2 Nd1 Kd5 Bc6+ Kc5 Qa2 Nb6 Qd7 Ba7 Be4 Qd8 Qa1 Qa2 Bc6 N6c4 Rb8 Qc7 Rg8 Bb8 Qe8 Re7+ Rg7 Qc8 Bd7 Kd5 f5
1Q5B/2b5/K1b2r2/Ppr1Bk2/n4NrB/qB1n1Rq1/1RB1p1Np/1RR1n3 w - b6 0 1 illegal: No possible last move
2bRrB1r/4np2/N7/1B1RR1Pp/R1B2B2/n1Rp1pNr/Kq3k2/1R6 w - h6 0 1 illegal: Lossy FEN conversion
3b2R1/2B1rr2/b5N1/NpnBQQPp/1R3b1B/2R2r2/3pP1NK/1n2qk1b w - h6 0 1 illegal: Lossy FEN conversion
1rR3KQ/p1p4r/2R1b2q/n2nBRpP/P3B1kn/1n3N1r/4N3/2QQn2N w - g6 0 1 illegal: Lossy FEN conversion
4B3/1N1R1Q2/1k3nNn/nPpQ1Q2/K2BB3/1RPprqp1/3p1r1R/4bqr1 w - c6 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 h3 g5 Qd2 g3 Qf4 g2 Bd2 g4 Bc1 g3 Qd2 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 a5 e4 h5 f4 d5 b4 Kd7 f5 h4 e5 h3 f6 a4 b6 Kc6 c3 h2 Kc2 a3 Kb3 a2 g5 d3 b7 d4 f7 Qc8 g6 Nf6 g7 Qd8 g8Q Qe7 e6 Ra4 Nd2 Ng4 Nh3 g1Q Nc4 Nd7 b8R Ndf6 Be3 Bh6 f8Q Qf7 e7 Ra7 Be2 Qf1 Nf4 Ra8 Rb5 Re8 Ka4 Bg5 Qc2 Nh6 Rd1 a1N Ng6 Nb3 Nd6 Na5 Nb7 Qd5 Rd2 Qdf3 Qff7 Rh7 Bg1 Bf4 Rd1 Bd2 Bf2 Be1 Rd2 Qd5 Bf3 Rf8 Be4 Rh8 Rg1 h1R Rg2 Rg1 Rh2 Rh7 Re2 d2 e8B+ Nd7 Qb1 d3 Bd4 Rg7 Qf5 Rgf7 Qa2 Re7 Qgf7 Re5 Rc5+ Kb6 Rb5+ Ka6 Ref2 Qc6 Qad5 Nf6 Bg2 Re3 Be4 Nhg8 Rh7 Nh6 Rg7 Qd6 Rh2 Qdf4 Rc5 Ka7 b5 Q4f3 Rc4+ Ka8 Rb4 Kb8 Be5 Ka7 Rb3 Kb6 Qg8 Q3e2 Rd7 Qef3 Qgf7 Qg4 Qf4 Nh7 Qe7 Rf6 Qg5 Rf2 Qef7 Nf6 Qf5 Qf3 Bd4+ c5
q5BR/2p1kN2/2R3bn/ppPnrpR1/1Q1pQ2B/B7/qPK1Q1Nr/2q5 w - b6 0 2 illegal: Lossy FEN conversion
K1N1r2R/4R1p1/4b2p/qPppqPn1/QB4N1/1q2R3/1p5N/N1k1NBr1 w - c6 0 1 illegal: Lossy FEN conversion
1R3q1r/1bR2nrq/3R4/2rppPN1/2PN2k1/r2B4/1nKBqR2/bQ2R2B w - e6 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 Kf6 f4 d5 g4 a5 c4 h5 b6 h3 b7 d3 b5 a4 b6 h2 Bh3 h4 Nc3 a3 Bg2 a2 Nh3 Nh6 Ne2 Ra5 Ng5 h3 Re1 h1R Nd4 Rg1 Bh1 Na6 b8R h2 Rb7 Nb4 Rc7 Bg7 b7 Qf8 b8R Bb7 Qc2 Rc5 Qb1 Nf7 Kc3 Nc2 Bd2 Ne3 Kb2 Nd1+ Kb3 Nb2 Kc3 Bh6 Re6+ Kg7 f6+ Kg6 Rd6 Bg7 Kb3 Ne5 f7+ Bf6 Bf3 h1Q Bg2 Qh7 Bh1 Qfg8 f8R Nf7 Nge6 Kh6 g5+ Kh5 g6 Kg4 g7 Rg3 Ng5 Be5 Rfd8 Qf8 g8B Rg2 Rf6 Rg3 Rdd6 Rg1 Be1 d2 Kc3 d1Q Bd2 Qe2 Rf5 Qhh2 Bh7 Bf6 Bg6 Qh7 Kc2 Bg7 Rff6 Rg2 Bd3 Rg3 Qg1 Rg2 Rf1 a1R f5 Ra4 Rf2 Ra3 Qb1 Qe1 Ra8 Nd1 Nb5 Kh4 Rfe6 Ba1 Rb8 Nb2 Nh3 Rg7 Ng5 Kg4 Nd4 Qf1 Re1 Qg2 Rf3 Qe2 Rf2 e5
5K2/3N1B1b/k1pr3r/PpBr4/2b3Rn/QP1b2BR/1n1R3R/rR1nb1N1 w - b6 0 1 illegal: No possible last move, all moves rejected
qn2k3/RB3nQ1/Nb2b2R/1bPp2Rr/q2qR2P/1R2p3/1BK1p3/2r3NB w - d6 0 1 illegal: Lossy FEN conversion
b3rr2/PN6/BQ1bNR2/Nq3PpR/n3ppN1/5nrq/2R2N1q/BK3k2 w - g6 0 1 illegal: Lossy FEN conversion
2NK4/1rq1B1qk/4q2P/3pPR1B/B1N5/ppnn1R2/1Rn2NQ1/2r1R1r1 w - d6 0 1 illegal: Lossy FEN conversion
N2QR1nq/p4kp1/r2R4/Ppr2N2/1r1nbB2/2R3P1/K1q2Nr1/B1BR2q1 w - b6 0 2 illegal: Lossy FEN conversion
2b5/3B1r2/r2RB1n1/r1pP3r/QnR4N/3RN1k1/KQpPRR1n/4q1b1 w - c6 0 1 illegal: Lossy FEN conversion
q1k1rb1R/RRB3K1/bnB5/n3Pp2/Q3pRN1/1rb1QP2/4r1NR/q5b1 w - f6 0 1 illegal: Lossy FEN conversion
QN1r3q/Bp4n1/N3nq2/p2b2Pp/2b4R/1PN1b1RN/3K1pqN/k2B3Q w - h6 0 1 illegal: Lossy FEN conversion
b2kb2K/3NRp2/R3Br2/1NpP1r1B/R6Q/1Pq4q/2Q2qn1/b3nR1N w - c6 0 1 legal: proof: c4 a5 f4 e5 g4 exf4 b3 h5 gxh5 d5 cxd5 a4 Bb2 b5 a3 b4 axb4 a3 b5 axb2 Kf2 g5 Kf3 g4+ Ke4 g3 Ke5 g2 h4 f3 d4 f2 e4 Bg4 d6 Bh3 d5 Na6 h6 Nb4 b6 Rb8 h7 Nf6 h5 Rb7 h6 Bc8 d7+ Ke7 Qc2 Ra7 b7 Ra3 b8N Qe8 d8R Qc6 Nc3 b1Q Nb5 Bh3 Rd7+ Ke8 Ne2 g1Q Ng3 Ra6 Be2 f1B Re7+ Kd8 Nd7 Bg7 Ra4 Qf2 Bh5 Bd3 Rg1 Qbf1 Nh1 Bf5 Rg6 Qh3 Rg1 Re8 h8R Qc4 h7 Qc3+ Nd4 Bb5 Rf1 Bc6 Rf8 Ra5 h8Q Ba8 Qh7 Rb5 Rg8 Bh8 Rg6 Rb6 Qh6 Bg4 Qg5 Be2 Qh4 Bb5 Rh6 Qg1 Rg6 Ng4+ Kf5 Bbc6 e5 Nd3 e6 Ne1 Nb5 Qf2+ Kg5 Ne3 Kh6 Bd4 Kh7 Rg8 Rf6 Rg5 Kh8 Rf5 Ra6 Re5 Rf4 N3g2 Re4 Be3 Rc4 Bd4 Rca4 Rf5+ Nf6 Qc5 Rd7+ Kc8 e7 Ba1 e8B Qcc3 Re7 Kd8 Bd7 Bab7 Be6 Be8 Bd7 Ba8 Bc8 Rg5 Bcg4 Re5 Nd7 Rf6 Be6 Rg5 Qd1 Rgf5 Qc2 c5
b1b1Qq2/2kN1NbN/3n1B2/qpP5/qr1R1B1N/Pq1p4/1K5Q/2rQ2R1 w - b6 0 1 illegal: Lossy FEN conversion
2r1nn1N/2R1Qq2/b1nRB1QB/Pp4P1/5B1q/3p1KR1/4pR2/k1N1r1q1 w - b6 0 1 legal: proof: g4 a5 d4 c5 f4 cxd4 b4 axb4 h4 f5 e4 g5 exf5 e6 fxg5 Ra4 h5 Ra7 h6 Bc5 g6 Bf8 g5 Bg7 hxg7 Ra8 Ke2 Ke7 a4 Kd6 c4 Kc5 f6 d5 a5 h5 f7 d3+ Kf2 Kd4 f8B b3 c5 e5 c6 d2 c7 e4 Rh3 h4 Rc3 b2 Rc5 h3 Be2 h2 Bd3 h1Q Bc2 e3+ Ke2 Qd7 Na3 b1Q Rc3 Nc6 Ra2 Nge7 g8R Qh4 g7 Ng6 Qe1 d1N Bb3 Nb2 Kf3 Nc4 Rf2 Nd6 Nc4 Ne8 Ne5 Qe7 Bc4 Bf5 c8R Qf7 Rc7 Rc8 Ra3 Qa1 Qb4 Qb1 Qe7 Rh7 Bb3 Kc3 Rh8 d4 g8Q Qa1 Bh6 Nf8 Ng6 Qb1 Bd2+ Kb2 Ne2 Qg1 Nc1 e2 Be6 Bd3+ Bf4 Ba6 Rb3+ Ka1 Rb6 Na7 Rd6 d3 Qg7+ Qf6 Qgf7 Nc6 Qg8 Rf7 Rh7 Qg7 Nh8 Rf5 Qgf7 Rb5 Qg6 Rb1 Na2 Re1 Nc1 Qg8 Rf7 Qh7 Rf5 Qf7 Re5 Rf1 Re3 Rd1 Ke4 Rf1 Rg3 Re1 Kf3 b5
2qQ2R1/5rB1/3pn3/1rQN1NPp/QB1N2p1/5RNn/bk1P3q/n1n1K3 w - h6 0 1 legal: proof: b4 b5 g4 c5 bxc5 g5 a4 f5 axb5 e6 h4 Bg7 f4 Bf8 Bg2 Be7 Be4 fxg4 f5 g3 Bd3 g4 f6 Bf8 Be4 Bh6 Bf5 Bg5 hxg5 exf5 c4 Kf7 e4 Ke6 b6 a5 f7 g2 f8B f4 c6 a4 c7 a3 c5 a2 e5 Kd5 b7 Kc4 e6 f3 e7 d6 e8N Ne7 c6 Be6 c8Q Nd7 b8N Nd5 c7 Ra7 Bb2 Nf4 Bc3 Nc5 Ng7 Nb3 Nc6 Nc1 Ne2 g1N Ng3 Ngh3 N7f5 Bg8 Bb4 Ne6 Qa8 Qc8 Rf1 Rb7 Ncd4 Rb5 Qda4 f2+ Kd1 Bf7 Bg7 Rf8 Nc3 Kd3 Rb1 a1N Nd5 Bg8 Qc6 Rf7 Qd7 Kc4 Qd8 Kd3 Rb3+ Kc4 Re1 f1Q Rf3 Qg2 Re5 Qh2 Ke1 Qa8 c8Q+ Qc6 Qb7 Qc8 Qbb6 Nef4 Re8 Ne6 Rf4 Kd3 Nb3 Kc2 Rf3 Kb1 Nbd4 Kb2 Qc5 Ra7 Qd1 Nc7 Nb6 Ba2 Qa4 Ne6 Nd5 Rf7 Rg8 h5
Q3Q2B/1R2b3/N3p3/B1nB1pPK/R3qnp1/1q2Rp2/pP2B1k1/2N1b2r w - f6 0 1 illegal: Lossy FEN conversion
2N3qB/pnbb2Q1/P6R/Rp2Pp1N/1Nppkp2/2B3K1/QR1n4/1b5N w - f6 0 1 illegal: Lossy FEN conversion
n1BR1NR1/BP2n1RK/krb1r3/b3PpQQ/2b3p1/B1N2q2/1r1R1n2/7r w - f6 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 c5 e4 Kc7 h4 Kb7 d6 g5 b6 f3 Ke3 g3 e5 a4 b5 c4 d7 c3 h5 f2 d5 g2 d6 c2 h6 a3 h7 a2 Ne2 g1N Rh2 Nh3 Nf4 Ra5 Ba3 c1R Qh5 Ra6 Ng6 Rc2 Nc3 Qf6 d8Q Rb2 d7 Bb4 Nf8 Ba5 Ke4 Qc6+ Kf5 Ne7+ Kg4 Rg8 h8R Rg6 Rg8 Re6 Be2 Qd5 Rg1 f1B Bf3 a1R Rd2 Rc1 Be4 Rcb1 Bf5 Bc4 Rg3 Rh1 Rg7 Ka8 b7+ Ka7 Rg1 Rac6 b6+ Ka6 Rg8 Ng6 Qf6 Ne7 d8R Nd7 b8B Bb7 Ba7 Rcd6 Rgg2 Bc6 b7 Nb6 Rg1 Na8 Qg7 Rh6 Bc8 Rde6 Qf6 Ng6 Qf4 Nf2+ Kf5 Qf3 Rg3 Re7 Kf6 Re6+ Kg7 Ne7 Rg1 Rhg6+ Kh7 Rgf6 Rg7 Rg6 Rgd1 g4 Qg5 Be4 Re8 Reb6 Rdd8 Bc6 R1d2 Rd6 Nd7 Rf6 Reg8 Re6 Nf8 f5
3N2BK/pb1Rr3/1R6/BrQ2Pp1/1Nqr1k2/1n2R2q/1qR2BPn/1r2rQ2 w - g6 0 1 illegal: Lossy FEN conversion
8/1b1Qb2r/2p4R/kq1RQpPn/1qq1Bn1B/1PpQ4/2B1BNN1/4nK1r w - f6 0 1 illegal: Lossy FEN conversion
1n1N3q/1B6/2n1qQ1Q/pPbpPN1r/6kN/pRR2q2/b3qBB1/r2BK3 w - a6 0 1 illegal: Lossy FEN conversion
1kqB2B1/3n2np/1N1pqr2/1RpP2b1/1BB3BP/2p2B2/1Rq2N1p/1K1b2Q1 w - c6 1 2 illegal: Lossy FEN conversion
1b2b2r/4Nq2/1kbb1nR1/pPRR3N/qN1NBq2/1P1r2B1/4n3/rQ2R2K w - a6 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 f5 e4 h5 g4 c5 Kg2 Kc7 g5 f3+ Kh2 c4 e5 f4 b3 f2 g6 h3 g7 c3 d6+ Kb6 e6 c2 d7 f3 d5 h4 d6 Nf6 g8R Nc6 e7 Nd4 e8N Ne2 Bg2 f1Q Nc3 f2 Bf4 c1B Bg3 Bf4 Rc1 Qe7 d8R Qe4 d7 Bb8 Rc2 Qa4 Nf3 Bfd6 Qb1 Qc1 Rg4 f1Q Na2 Qcf4 Nd4 Bb7 Rg7 Bc6 Rg6 Q1f2 Rg1 Qf1 Kh1 h2 Ng7 Q1f3 Rf8 Qf2 d8N Be8 N8c6 Q2f3 Qa1 Qd5 Be4 Qf7 Kg2 h1R Re1 Rf1 Rc5 h3+ Kh2 Rg1 Nh5 Rf1 Nab4 Rg1 Rb1 Rd1 Ne7 Rd3 Kh1 h2 Kg2 h1B+ Kh2 Bf3 Re1 Rd1 Qa2 Ra1 Qb1 Bh1 Bd3 Bhc6 Be4 Bbc7 Kh1 Rd8 Rfg8 Bb8 Rgg5 Rd7 R8g6 Bdc7 Ndf5 Rd3 Nd4 Bd6 Rgd5 a5
r2bR3/1nqK3k/2P2b1r/BN1Pp3/bNq2QB1/1R3R1b/1nN1rR2/n1N5 w - e6 0 1 illegal: Lossy FEN conversion
NNq1q3/3Rn3/1pP5/pP2B2n/n3p2Q/B1r4b/nbR2R2/nK1Bk1BR w - a6 0 1 legal: proof: e4 c5 d4 cxd4 a4 g5 h4 gxh4 a5 f5 exf5 b6 a6 Nc6 Bd3 Rb8 Bf1 Rb7 axb7 Bg7 Bc4 Bh6 Bf1 Bf8 Kd2 Kf7 b8B Kf6 g4 Kg5 b4 e5 c4 Kf4 b5 h5 g5 d5 f3 Kg3 Kc2 Kf2 g6 e4 c5 h3 g7 h2 f6 h4 f7 h3 f4 Nge7 g8R Qe8 f5 Na5 f6 Bg7 f8B Nb3 Nc3 d3+ Kb1 d2 f7 d4 c6 d3 Qg4 d1N Ba3 d2 Be5 Ke1 Ra2 Na1 Be2 Nb2 Bd1 Na4 Nd5 Rh6 Nc7 Bh8 Bf3 d1N Na8 Bf5 Rc2 Ndc3+ Kc1 Rd6 Bd1 Na2+ Kb1 Rd3 Rg7 Rc3 Qh4+ Kf1 Bed6 Ng6 Bf4 Rc4 Bfc5 Bc8 f8R Bf5 Rh7 Bb2 Bf2 Rc3 Nf3+ Kg2 Rf1 h1N Bb4 h2 Bbd6 Ng3 Ne5 h1Q Ba3 Qh3 Nd7 Nh5 Rh1 Qg4 Bg1+ Kf1 Nb8 Qh3 Rd7 Ne7 Rdd2 Be6 Rf5 Bd7 Rf2+ Ke1 Rd5 Bc8 Be5 Qhd7 Na6 Qdd8 Nb8 Bh3 Rd6 Qc8 Rd7 a5
3K3n/1BN1r3/3qp3/krBr1Ppp/8/B2B3r/QN1Nr1Pn/R1R2brN w - g6 0 1 illegal: Lossy FEN conversion
k2B2r1/1p1bp1Q1/N3n2R/qPp3n1/2Q1P2R/Q2n3K/1p1r1Q2/2bQB1qQ w - c6 1 2 illegal: Lossy FEN conversion
rn5K/B2Rp2q/knR5/b1Q1Pp1N/1nb2Pq1/2r3Bb/Q2Br1B1/3R2R1 w - f6 0 2 illegal: Lossy FEN conversion
1b6/pNqqk3/1rQ1B2Q/4Ppr1/R1b1R1Q1/RR1qnP1b/r3n2N/1Q4K1 w - f6 0 1 illegal: Lossy FEN conversion
2R2R2/3b3Q/B1Q2r1p/q3qppP/QnnQ1Nkq/b5p1/P3RB1r/3R3K w - g6 0 1 illegal: Lossy FEN conversion
5NRN/5N2/2Rp2r1/Nq1bpP2/2rnbN1n/b2B3K/BP1kB3/B2r1n2 w - e6 0 1 illegal: Other
NKn1rr1R/4N1B1/1r6/N1Pp2nR/Pr1B1kN1/3B2q1/2b1p2p/2R1Rn2 w - d6 0 1 illegal: Lossy FEN conversion
3kB3/5n2/1qP1pr2/BN1r2Pp/1nQr2R1/2R1qQ2/K1NR1QPq/b2n4 w - h6 0 1 illegal: Lossy FEN conversion
q5n1/p2B1Qr1/b2K2N1/1npP1r2/3BB3/b1q1PP2/1N1nQq1k/2RRq1R1 w - c6 0 1 illegal: Lossy FEN conversion
B5r1/k1b4Q/Bnn5/2P2pPR/1QN1rBqn/pK3P2/4bb2/1RbnQ2N w - f6 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 d4 Kd7 Kd2 Kc7 Kc3 Kb7 g4 e5 b6 h5 f3 a5 d5 a4 g5 a3 d6 e3 d7 h3 Ra2 h4 Qe1 e4 Nd2 e2 Nc4 h2 Bf4 e3 Be5 h3 Nd2 Ra4 Ra1 Re4 Nb1 Nf6 Qg3 e1B+ Kb3 e2 c4 Nd5 Qf2 Nc6 Bf4 Rg8 Nd2 Bd6 Rb1 Bc7 Qe3 Ka6 b7 Bf2 b8Q e1B Ne2 Nb6 Ng3 Qf6 d8Q Qf5 Qdd3 Qg4 Qc2 Bb7 Qf8 Ka7 Qec3 Be3 Qb4 Ba6 Qe8 B1f2 Be2 Ne5 c6 Bb5 c5 Bd3 Rhc1 h1N Nc4 h2 Bf1 Be2 Qd3 Bd8 c7 Nc6 c8B Bc7 Bb7 Bd2 Ba8 Bde3 Nh5 Ng3 Qe5 Nf5 Ng3 Nh4 Nh1 Bd2 Qec3 Bde3 Qe1 Bd2 Rd1 Bc1 Qc2 Re6 Qh7 Re4 Ng3 h1N Rd6 Bg1 Rh6 Nf2 Nh1 Nd1 Rh5 Bf2 Bh3 Qg2 Bc8 Qg4 Ba6 f5
1q4N1/kN3RrP/2rQ1BB1/1r1bpPbQ/2q1npR1/q2Q4/4Pr1b/1KB5 w - e6 0 1 illegal: Lossy FEN conversion
3k2b1/p3pB1P/rqq2RR1/q1npP2N/q1BQ4/1r1N1qQR/3P3N/3n1K2 w - d6 0 2 illegal: Lossy FEN conversion
1q1NB2b/n2rRn1n/4R3/2pP1qQ1/2B1Q1Np/1pqR3P/k3bP1B/3q2K1 w - c6 0 1 illegal: Lossy FEN conversion
1r4R1/1p3BqQ/5B2/1RKnpP2/1r1Qb3/Pqb1Nk1N/PbpB1p1n/3N4 w - e6 0 1 illegal: No possible last move, all moves rejected
1bQ1BK1Q/2pnP2B/r3R3/1R1NBPpP/1NpRn3/q7/1b1p3r/1bq3k1 w - g6 0 2 illegal: Lossy FEN conversion
3bB3/QR2nRp1/1pKP1BN1/qN4Pp/N3k3/q2n2p1/1Q2Prn1/1n1R2r1 w - h6 0 1 illegal: Lossy FEN conversion
1qbr4/3b1n1p/2Kp4/2N2PpQ/1Bk5/2pnQpP1/n1N1R1RP/1B2B1Qn w - g6 0 2 illegal: Lossy FEN conversion
BK2R1Q1/2r3r1/pqbrn3/5pP1/P2b1qNp/3Bb1n1/2QR1PR1/1bB1N2k w - f6 0 1 illegal: Lossy FEN conversion
R3q1bb/2p4B/2pQ1q1r/RpPn2N1/pPQ1RNk1/4K3/1r2pr1P/1n1NB3 w - b6 0 1 illegal: Lossy FEN conversion
1R2b2q/2R3b1/2QR2q1/Pp3nR1/2B1K3/1N4Pk/2rP2nq/r2bNRBr w - b6 0 1 legal: proof: e4 d5 h4 a5 c4 c5 b4 f5 exf5 cxb4 c5 g5 c6 a4 Qxa4 d4 Qd1 d3 Bxd3 gxh4 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 Ke3 Kf6 a4 Kg5 g3 h5 a5 e5 f6 h3 f7 b3 c7 h4 f3 b2 Qb3 h2 f4+ Kg4 f5 e4 f6 h3 Bc4 Bg7 f8R Na6 f7 Nh6 Qc2 Nf5+ Kf2 e3+ Ke2 Nb4 Nf3 Nd3 Qa4 Bd7 c8R Be8 Na3 b1Q Rg8 Ne1 f8R Ng2 Rc7 Rc8 Bb2 Qc2 Rhc1 h1B Ne1 h2 Nb5 Kh3 Kf3 e2 Bd4 Qf6 Bg1 Qe5 Nd3 e1R Nd4 Qf6 Rd7 Qg6 Rd8 Qb2 Nb3 Qd4 Rd6 Rh5 Ba6 Rc2 Qc6 Rh4 Bc4 Qe5 Ba6 Ra4 Rab1 Ra1 Bc4 Rd1 Ne1 Qd4 Rf7 Qh4 Rfd7 Qh8 Rc7 Rca2 Bd4 Nfe3 Bd5 Bd7 Nd3 Nf4+ Kf2 Bf3 Rb8 h1Q Rc5 Rc2 Bc4 Be8 Rg5 Nf5 Be3 Rg1 Rf1 Ng2 Ne1 Qh2 Ba7 Rh1 Bd4 Be4 Bb6 Bd3 Kf3 Be2+ Ke4 Bd1 Bg1 b5
2R3K1/1B2p3/N1Nnb2p/1p1bPp2/1P4B1/r1B1q1BQ/qr1b1q1P/1R3Bk1 w - f6 0 3 illegal: Lossy FEN conversion
rR1Q3q/2p3Pq/7B/1Bk2pP1/P3R3/1q1B1r1p/K1N2N1q/2Rn1rBn w - f6 0 1 illegal: Lossy FEN conversion
1n1B1r2/p3PN1P/1Rp2pQ1/k1Pp1B1B/2b1B3/2Np2q1/p2K2N1/1Rr3r1 w - d6 0 1 legal: proof: a4 b5 d4 bxa4 g3 e5 f4 g5 fxg5 exd4 Bd2 h6 Bc1 h5 g6 h4 Ra3 h3 Ra2 Be7 Ra1 Bh4 gxh4 Na6 Be3 Nc5 Bg5 Ne4 Bc1 Ng3 hxg3 Ba6 Bg5 Bb7 Bc1 Bc8 b4 h2 e4 a3 c4 d3 e5 a2 b5 Ba6 e6 Rb8 b6 Qf6 g7 Kd8 h5 Kc8 h6 Kb7 c5 Qb2 h7 Qb5 g4 Kc6 g5 Ne7 g8B Rc8 b7 Qb2 b8N+ Kb5 g6 Qd4 g7 Nc6 Nf3 Qb4+ Nc3+ Ka5 Rb1 Bb7 Bh3 Nd4 Nh4 Bc6 Bf5 Ba8 Nc6+ Ka6 Nd8 Qb3 Bg5 Nc6 Qh5 Ka5 Qg6 Nb8 Kd2 Bd5 Ng2 c6 Bf6 Qb7 Rb6 Qc7 Rhb1 h1R Be7 f6 Bf7 Re8 g8B Rf8 Be8 Qh2 Nf7 Qg3 Bd8 Bc4 e7 Rg1 Ne5 Re1 Bd5 Rc1 Bde4 Rg8 Qh6 Rg7 Bh5 Rg8 Nf7 Rg4 Bc7 Rf8 Qg5 Rf4 Bd8 Rff1 Qg7 Rg1 Qg6 d5
b2r2n1/2r2NrR/q5BB/Nk1Pp1P1/3B4/1rnNnN2/rR2P1Q1/qn3K2 w - e6 0 1 illegal: Lossy FEN conversion
2R1n1q1/r2B1r2/1k1n2R1/n2KN1Pp/bB4BP/1RR1qP1q/pN1Qr3/2r5 w - h6 0 1 illegal: No possible last move, all moves rejected
3nbk1B/Q1N1p3/2r5/1p1RPpBp/2q1nnnK/1B5B/R2PRqNP/5b2 w - f6 0 2 illegal: Lossy FEN conversion
2n3qn/2R3B1/1Pp5/R1QrPp1K/3n2bR/P2BQ3/3rbbR1/b1N1qkN1 w - f6 0 1 illegal: Lossy FEN conversion
Q4K2/1NP3RQ/2p1NBb1/nnPp1n1p/P6n/b3n3/1B1R2n1/Bq1Bk2r w - d6 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 d4 axb4 h4 g5 d5 gxh4 d6 c6 Ne2 Ra7 Ng1 Rc7 dxc7 Bh6 Bb2 Bg7 Bc1 Bf8 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Ke4 h3 g4 h2 a4 b3 f4 b4 c4 b2 Ra2 b3 Qd2 Ba3 c5 Ba6 Qa5 Ne7 Nh3 Ng6 Be2 Nh4 Nd2 b1N Rg1 h1N Nc4 b2 Nd6 h6 Ng5 Nc3+ Ke3 b1N Rd2 e4 Kd4 e3 Bd1 e2 Ne6 e1N Nb7 Bf1 Qa8 Neg2 Bb2 Ng3 Ba1 Na6 g5+ Ke7 Ke5 Bd3 g6 Qb8 g7 Nb4 g8Q Nb5 Bb2 Nc2 Qg6 Nce3 Qh7+ Ke8 f6 Bg6 f7+ Ke7 Ba1 Ngf5 Bb2 Nbd4 Ba1 Nb3 Bb2 Nc3 f8B+ Ke8 Kf6 Na5 Bg7 Nb5 Ke5 Ke7 Ba1 Ng3 f5 Kf7 f6 Ngf5 Bb2 Bh5 Qg8+ Kg6 f7 Rh7 f8B Rh8 Ned8 Kg5 Qh7 Bg6 Bd6 h5 Ba1 Rf8 Be7+ Rf6 Re2 Kg4 Ne6 Kg3 Rd2 Nfd6 Bd8 Rf1 Bb2 Ndf5 Kf6 Nfd6+ Ke7 Ndf5+ Kf8 Re1 Be2 Kf2 Bgd4 Rf1 Bd1+ Ke1 Bdc3 Qa7 Bdf6 Qb6 Rh1 Rg1 Rh3 Rh1 Rg3 Nbd6 Ba1 Qb1 Bcb2 Nb5 Rg5 Be8 Rg8 Bg6 Rg7 d5
N3k2N/1n3p2/4Nnb1/3pP1K1/3r3P/Q1q4P/1R2npb1/QrRBRrQ1 w - d6 0 1 legal: proof: d4 c5 a4 cxd4 g3 h5 Ra2 e5 Ra3 b5 axb5 h4 gxh4 e4 Ra1 e3 f4 Bd6 Bd2 Be5 fxe5 Qb6 e6 Qc7 Bb4 Nf6 Bd6 Kd8 Bg3 Ng8 Bf2 exf2+ Kd2 Ke7 e4 Ke8 e5 Qd8 b4 g5 c4 a5 b6 a4 h3 a3 b5 d3 Ke3 a2 b7 g4 Kf4 d2 c5 g3 b6 g2 c6 Ra6 c7 Nf6 Na3 Ng8 Rc1 a1N Nc2 Ra8 Ne2 g1R Ncd4 Na6 b8Q Rg2 b7 Rg3 Qa7 Rg1 b8R Nc2 Rb2 Bb7 c8N Nf6 Nb6 Bg2 Kg5 Nc5 Qa1 Qc8 Nf4 Nb7 Be2 Rf1 Ng6 Ra4 Na8 Qc3 Qa3 Rf8 Nh8 Rc4 Qe1 d1B Bh5 Bg4 Qa1 Bf5 Bd1 Bg6 Qe3 Qa5 Qea3 Qc3 Rg1 Nb4 Rh1 Nbd5 Rg1 Nf4 Rh1 Kd8 Rg1 Ne2 e7+ Kc8 Ne6 Rd4 Nd8 Rg8 e8Q Rf8 Qee7 Re8 Qf8 Re6 Qg7 Rb6 Ne6 Rb3 Nc5 Kd8 Ne6+ Ke8 Qh6 Qc2 Qh5 Rbb4 Qg4 Qc3 Rh1 Bc6 Qg1 Bg2 Rd2 Rb1 Rdc2 Qc7 Rb2 Qc3 Qh2 Re1 Rg1 B2e4 Rg3 Rh1 Rg1 Bg2 Re1 Rf1 Qg1 d5
5K2/2b4q/2Q2R1r/Pp2p1R1/2Pb1rNk/2p1bnRN/2P1Q1qn/B1Q2b1N w - b6 0 1 illegal: No possible last move, all moves rejected
n1qr1B2/1N2Pbq1/Q4P1k/1Pp1Rb1p/8/BK1nRB2/3rR1B1/2Q1n1q1 w - c6 0 1 illegal: Lossy FEN conversion
1q3r2/2N5/prbq1Q2/1Q2pPbk/NNK2P2/3BP3/r2NRqrB/n2Q4 w - e6 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 f5 e3 f4 Be2 f3 Bd3 Na6 Bf1 Nb8 g4 Bg7 b4 Nh6 d3 Nf5 gxf5 Bf8 Ra2 Nd7 Re2 fxe2 f4 Nf6 Kd2 Ng8 Kc3 Kf7 d4 e1Q+ Kc4 c5 b6 h5 b5 h3 b7 h4 b8N h2 b6 h3 d6 Bb7 d7 Kg7 d5 Kh6 d6 Nf6 Qd4 Qf2 Kc3 c4 Ne2 Kh5 Na6 Bh6 Qd1 Rf8 Bd2 Bc6 b7 Qb8 d8Q Nd7 Qb6 Nc5 d7 Nb3 d8N Bg5 Nb4 Na1 Ne6 a6 Kd4 c3 Nc7 c2 Be1 c1Q Nd2 Qa3 Kc4 Rf6 Rg1 h1R Rg2 h2 Qd4 Rg1 Nc3+ Kh6 Bd3 h1R Na4 Rh2 Qb3 Kh5 Qd1+ Qe2 Rf2 Rgg2 Qc3 Qf3 Re2 Qf2 Qb2 Rh6 Qf6 Rg6 Nc2 Qd6 Nb4 Qf8 b8Q Qfd8 Qb5 Qb8 Qc3 Rf6 Qd4 Rf8 Qdb6 Ra7 Qd4 Rb7 Qb2 Rb6 Qf6 Qf3 Bg3 Qf2 Qc1 Rh1 Qc2 Rb1 Qc1 Rb2 Qd1 Ra2 Bh2 e5
5kq1/n7/rNnPK3/nrNN1npP/3NQR2/Q2Q4/4n1PR/1b1bbn1B w - g6 0 1 illegal: Lossy FEN conversion
B4N1r/N1q1Pb1Q/6r1/n1Pp3b/4kB2/RBBq1Nq1/Qq1PK3/n1b4b w - d6 0 1 illegal: Lossy FEN conversion
2N1rbK1/3PR1R1/N1qQ4/1q2Pp1p/4nRNB/3rRb2/3n3P/Q1q1n1kb w - f6 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 g5 e3 g4 Be2 Be7 Bf3 gxf3 Qc2 Bd6 Qd1 Bf8 Kf2 Ke7 b4 Kd6 d4 c5 g4 a5 e4 h5 g5 c4 b6 a4 b7 c3 e5+ Kc7 g6 Kb6 b5 c2 g7 a3 d6 a2 d5 Kc5 d7 Qc7 d8Q Qd7 d6 Qc6 b6 Nd7 b8N Ndf6 b7 Bh3 Na3 Be6 Nb5 Bg4 Na6+ Kc4 b8R Rh6 Bd2 Kd3 Rb7 c1Q Nh3 Rb8 Qa5 Re8 Re7 Ke4 Rb1 a1N d7 Nc2 Rf1 Ne1 Nd6+ Kd3 Nc8 Ne4+ Kg1 Re6 Qa1 Ngf6 g8R Rd6 Rg7 f2+ Kh1 f3 Bg5+ Nd2 Bh4 Ne4 Rb3+ Kc4 Re3 Rd3 Rg1 f1B Nf2 Be2 Rf1 Bf5 Ng4 f2 Qda4+ Kd5 Qb4 Be6 Qba3 Kc4 Qd6 Bd5 Qa5 Kd4 Qaa3 Nc2 Kg2 Ne1+ Kh3 Bf3 Qa5 Ng5+ Kg3 Nge4+ Kf4 Bh1 Kf5 Bf3 Rg1 f1Q Rg3 Bh1+ Ref3 Qe2 Rf4 Bf3 Nh6 Ke3 Qa1 Kf2 Ng4+ Kf1 Rh3 Kg1 Rg3+ Bg2 Rgf3 Bh1 Re3 Nf2 Kg5 Bdf3 Kh6 Nfe4 Kh7 Rd4 Qd5 Qeb5 Kg8 Rd3 Qd6 f5
3R3r/3K1PN1/pnp2R2/N3qRPp/PRq5/1qpQn1k1/1Q2rb2/2N3Bb w - h6 0 1 illegal: Lossy FEN conversion
5b1b/K1krnR2/RN1n3r/b2p2pP/PN2RRNq/3Q2P1/2Bbq3/7N w - g6 0 1 illegal: No possible last move, all moves rejected
1q6/3p1R2/2NNp1N1/1pP4P/K1pp1nk1/Qr1R2N1/RR1B1qPn/b2r4 w - b6 0 1 illegal: No possible last move, all moves rejected
RQn3r1/pR1p4/k6N/NrpPRqR1/1bP2nb1/p1b2NBr/P1N5/2K1b3 w - c6 0 1 legal: proof: g4 h5 e4 hxg4 Ba6 f5 exf5 bxa6 Kf1 a5 Ke1 a4 d4 e5 Kd2 g5 b4 e4 h4 g3 c4 g2 f4 g4 h5 g3 f6 Ba6 f7+ Ke7 d5 Kd6 b5 Kc5 f5 Kb6 f6 Bd6 f8R Ne7 h6 Nbc6 f7 Ng6 h7 Nf4 Re8 Qg5 f8R Rb8 Rh5 Qf5 Rg5 Ne7 Na3 Nc8 Nc2 a3 Nf3 g1R Re5 g2 Rb1 Rb7 Bb2 e3+ Kc1 e2 Qe1 Rg8 h8N Bb4 Nf7 Rh1 Nh6 g1B Qf2+ Ka5 b6 e1B Qe2 Rb8 b7 Bd4 Qe3 Rh5 Qb3 Bb5 Rfe8 Bdc3 Rd8 Ra8 b8N Ba4 Nc6+ Ka6 Na5 Rb8 Rf8 Rb5 Ba1 Nb6 Ra8 Rh3 Bb2 Bd4 Bc3 Nc8 Bd2 Bdc3 Qb2 Ne6 Bf4 Bb3 Bg3 Nf4 Na1 Bd1 Nc2 Bd6 Nd2 Bg4 Nf3 Rc5 Qb8 Bf8 Rb7 Rb5 Nh4 Bfb4 Nf3 c5
R1n1qR1N/rN1p4/r4R1n/1Ppknn2/1B1Pr1B1/B1Bb4/RpP5/1b4K1 w - c6 0 2 illegal: No possible last move, all moves rejected
3r1k1b/1p1n3b/NQqP2r1/b2QPpBr/B3B3/2Q2KN1/3p1B1P/4Q2n w - f6 0 1 legal: proof: b4 e5 g4 a5 bxa5 c5 f4 h5 gxh5 Ra6 fxe5 Ra8 a4 d6 d4 Qc7 d5 Qd8 Ra3 Bh3 Rd3 Bc8 Rd4 cxd4 c4 Bh3 c5 Bc8 c6 Ra7 Bg5 Ra6 Bc1 Ra8 Nh3 Nf6 Rg1 Rh7 Rg3 Rh6 Rc3 Rh8 Ng1 Ng8 Rc5 dxc5 Kf2 g5 e4 d3 d6 c4 h6 g4 e6 c3 a6 g3+ Kf3 c2 a7 g2 c7 Rh7 a5 Bg7 e7 Bd7 c8Q Bb5 a6 Bd4 Bg5 c1R Nc3 d2 Nd5 Bh8 Ne2 g1B Qe1 Ba4 Qc3 Bb5 Nc7+ Kd7 Bg2 Bd3 Ng3 Bb6 e5 Nf6 e8B+ Kc8 Bc6 Nh5 Ba4 Qd7 Be3 Kd8 Bf2 Ba5 Bh1 Rg7 h7 Rg5 Bg2 Qb5 Bh1 Nd7 Bg2 Rc8 a8Q Bb1 a7 Qc5 Na6 Ke8 Qb8 Rd8 a8Q Kf8 Qba7 Qc4 Qad4 Qc6+ Qd5 Bc2 Qa7 Ra1 Qee4 Rg1 Qe1 Bg6 Qb6 Bb1 Nf5 Ng3 Bh1 Bc2 Bg2 Nh1 Ng3 Bf6 h8B Bh7 Bc5 Rh5 Bf2 Bg5 Bf6 Bh6 Bf1 Bg7 Bd3 Bh8 Be4 Rg2 Ne2 Rg4 Ng3 Rg6 Bg5 f5
2q1rQ1R/qn1rN3/2P4R/q2PnPpN/Rb2K2k/3BN3/3r3P/1B3n1q w - g6 0 1 illegal: Lossy FEN conversion
3R1q2/3q1r1q/3n1bP1/r1pP1R2/n2NB3/1q1bBRPN/1k1nKBPQ/2b5 w - c6 0 1 illegal: Lossy FEN conversion
1n2RrNn/8/7n/2rR1Pp1/BR1pb1Qb/1p2B2K/1P1B1PP1/rN1rr2k w - g6 0 2 legal: proof: e4 c5 h4 b5 a4 f5 exf5 b4 d4 cxd4 h5 Nf6 h6 Qb6 Kd2 Qb5 axb5 Ng4 Ke1 Nxh6 Kd2 Ng4 Ke1 Nh2 c4 Kf7 b6 Kf6 b7 Ke5 c5 Ke4 c6 h5 c7 e5 Nh3 a5 Be3 d5 Bh6 h4 Nf4 a4 Ba6 d3 Bb5 d2+ Ke2 h3 Qb3 d1R Bd7 d4 Qf7 b3 Qg6 a3 Ra2 Ng4 Bg5 h2 Qd6 Ra5 Qg6 Be7 Nd3 Rf8 Nc1 Nh6 Re1 h1N Nd3 Rc5 Ra1 a2 Bd2 Bh4 Ba4 Be6 c8R Bd5 Be3 Bc6 Kf1 Ng3+ Kg1 Nh5 Kh2 Nf4 Re8 Bd5 Qg3 Ng6 Nf4 Nh8 Nh5 Kd3 Qg4 e4 Nf6 Bc6 Bd2 e3 Ng8 e2 Kh3 Be4 Be3 Rd2 Rc1 e1R Rc4 Rdd1 Rb4 Bf3 Na3 Ke2 Nb1 Kf1 Bd2 Kg1 Be3 Nd7 b8B Be4 Bbf4 Kh1 Bd2 Nb8 Bfe3 Rcc1 Nc3 Rc2 Rc1 a1R Nb1 Rc6 Rc5 Rc7 Rce5 Rc5 Rd5 g5
2Kn1rBQ/1N1nP3/2r1ppB1/BN1R2Pp/1P1nP3/1p2kq1R/2n2b2/3n1R2 w - h6 0 1 illegal: Lossy FEN conversion
Kn1n1q2/1r6/1p1b3k/2RqPpp1/BP2BR1P/2Qr1p1b/3b1BP1/2N1Rn1N w - f6 0 1 illegal: No possible last move, all moves rejected
4n2R/r4nn1/R1pb1p2/ppP4K/P1QNr1r1/3bBnPB/RN3Pb1/1kN5 w - b6 0 1 illegal: Lossy FEN conversion
b2BB2B/n6p/R2p2bp/pPp1qR2/1pPPn2P/Q3qK1k/N1r1N2r/R7 w - c6 0 3 illegal: Lossy FEN conversion
1B2k3/q1R1b3/3nP3/qpPpQ1P1/BPr5/nr2b1rK/nqQ5/2RNBN2 w - b6 0 1 illegal: Lossy FEN conversion
6qR/1P1P4/n2Q1QKn/qPp1BQ2/q2P1Nb1/3p2k1/6n1/bNrB1qrR w - c6 0 1 illegal: Lossy FEN conversion
N2r3q/KB6/1Pb3Q1/p2PpP2/2QQ1qn1/2r1BPbk/1Rr1Rn2/1Nr3b1 w - e6 1 2 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 Ke2 Kd7 Ke3 c5 b4 a5 g4 h5 d4 h3 b6 h4 b5 h2 b7 h3 b6 c3 Kd3 c2 Kc4 Na6 Kb5 c4 b8Q c3 Qe1 Nf6 Ra3 Bh6 Bd2 c1Q Bf4 c2 Nf3 Nb4 Rd3 Bb7 Bg5 Qf4 Rd2 c1B Qe3 Nd3 Bg2 Ba3 Rf1 h1R Re1 h2 Ree2 Bc5 Rb2 Rc1 Qc8+ Kd6 Qd2 h1R Qc3 Rc2 Qb4 Qg3 Be3 Qf4 g5 Ng4 g6 Rhc1 g7 Bg5 g8Q Rh3 Qa4 Bh4 Ng5 Bg3 Ne6 Rb8 Qg6 Bc6+ Ka6 Qh8 Qcg8 Rc8 Ka7 Rd8 Bf1 Kd5 Nc7+ Ke4 Qgc4 Kf3 d5 Bd4 Na8 Bc5 Re1 Bd4 Be2+ Kg2 Qab4 Rh6 f3 Ndf2 Bd3 Kh3 Re2 Bc5 Qf7 Rhd6 Qg6 Rc8 Qbc3 Rdd8 Q3d4 Qh5 Qa4 Nd1 Qdb4 Bb7 Bg1 Qh8 Ba6 Bcf2 Qbb3 R8c3 Qd4 Bc6 Qbc4 Be3 Bb7 Bef2 Qdd3 Bc5 Be3 Bd4 Bd2 Bg1 Qdd4 Ndf2 Be3 e5
R2nn3/3r3Q/q1NP1k1B/N3pP1B/p1R3pp/bQ1bP2q/2K2NpP/6q1 w - e6 1 2 illegal: Lossy FEN conversion
r2r1kN1/q2Pnb1Q/n3q3/1pPp2B1/4R3/R1QP3n/1P1bKNq1/bB2n2R w - b6 0 1 illegal: No possible last move, all moves rejected
N2RKQ2/2p3nQ/2P2Qr1/1q2pP1n/Bq3N2/3qBP2/2p1P1rq/1brkb1R1 w - e6 0 1 illegal: Lossy FEN conversion
2B2Bb1/pQ1n1kq1/1b3p2/1rpP1RpN/2r3RB/3p4/n1P1rPPN/3r2QK w - c6 2 3 illegal: No possible last move, all moves rejected
2bK1R1B/q2P1BB1/3n2b1/1NnPp3/P2R1bPk/rb2Nb2/1r3n2/4qBQ1 w - e6 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kf7 Ke3 Kg6 Kd4 b5 Kc5 h5 d4 h4 g4 b3 f4 e3 d6 h3 a3 e2 d7 e1Q d5 b4 Ne2 b2 Nec3 h2 Nd2 b1B Ne2 b3 Bh3 b2 Qb3 Nh6 Qc4 Ba2 Bf1 b1B Bb2 Nf7 Qd4 Bh6 Qg1 Nd6 Nc3 Bb3 Nb5 Na6+ Kc6 Nc5 Nc4 Qf8 Be5 Qf6 Bc3 Qd4 Ne3 Qa4 Ra2 Qa7 Rd2 Rb8 a4 Bd3 Qg3 Bdc2 Rg1 h1B Rd4 Bf3 Rg2 Rf8 Rf2 Rf5 Qg1 Re5 Nc4 Re2 Ne3 Bce4 Rg2 Ra2 Rf2 Ra3 f5+ Kf7 g6+ Kf6 g7 Kg5 g8B Na6 f6 Bg6 f7 Bg2 f8B Bc4 Bg7 Kh4 Rf5 Bf4 Rd2 Bf3 Nd4 Rb2 Bh8 Bb3 Qg2 Nc5 Bb4 Nce4 Rf8 Nf2 Bc3 Nb7 Kb5 c5 Kc6 c4 Nb5 Nd6 Bcg7 c3 Rd4 c2 Re8 c1N Qg1 Nd1 Rf8 Nf2 Be6 Ncd3 Bf7 Qa6+ Kc7 Nc5 Kd8 Qb6+ Nc7 Qa7 Nb5 e5
N6B/2p2nr1/1BR2Qr1/1N1pPq1r/1R1PP3/2b2npb/1P1n4/1k1KRbR1 w - d6 0 1 illegal: No possible last move, all moves rejected
1brq4/Rn2nnP1/4N1p1/QnPp4/1RnK1N2/4rPp1/2kPBp2/1R3RB1 w - d6 0 1 illegal: Lossy FEN conversion
1k4rn/Rp2r2Q/6p1/N1pPppBN/1PP4b/1qNR3n/1NB1P2r/4q2K w - c6 2 3 illegal: Lossy FEN conversion
r3QN2/2p5/Rb1q2p1/r1PPp1P1/1P1n2rN/4kp2/qR1r4/RN1QnBK1 w - e6 0 1 illegal: Lossy FEN conversion
q5b1/P1p1p2b/1knb1R1b/2r1QPp1/3pN3/1K1QNn2/1BP2BP1/qB2Q3 w - g6 0 1 illegal: Lossy FEN conversion
b2Rb1kn/1R1NQR2/2p1nRp1/P2b1KPp/r4R2/4P2P/3Nr1Bb/2n2b2 w - h6 0 1 illegal: Lossy FEN conversion
1rQR4/1P1q2p1/PK1bb3/3B2Pp/1RPr3b/B2B2N1/4ppBk/1qRr4 w - h6 0 1 illegal: No possible last move, all moves rejected
b3bn2/P3q2Q/2R4b/nb1pPK2/PkbPQ3/3R3r/n4NN1/N1nB1rN1 w - d6 0 1 legal: proof: f4 a5 g4 c5 b4 e5 bxa5 exf4 Ba3 h5 Bb4 cxb4 gxh5 Qc7 Na3 Qb6 Nb1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 f5+ Ke5 b5 a4 g5 e4 f3 h4 b3 h6 b4 h7 f2 a6 f4 h5 f3 h6 g4 a7 b2 Qc2 g3 Nh3 b3 d4+ Kb4 c5 g2 c6 g1N c7 Bb7 c8N Ne2 Na3 b1N Qb2 Nf6 Qc2 b2 Nd6 Nbc3 Rd1 Nc1 Ng1 b1B Be2 f1B Qd3 f2 Nc2+ Kb3 Kf4 Nc6 e5 Na5 Ne4 Qe7 Na1+ Kb4 Rd2 Rd8 Bd1 Ba8 Rh3 Bg7 Rc2 N3a2 Rc6 Rdf8 Qf3 Bb5 Qh1 Rhg8 h8N f1B h7 Bfc4 Ng6 Rh8 Nh4 Bbd3 Rf3 Bf7 Rg3 Bdc4 Rd3 Be8 Qf3 Nd5+ Kg4 Nf4 Ng2 Ne6 Qe3 Rf1 Nf2 Nf8 Qe4 Bh6 Kf5 Rg8 h8Q Rg3 Qg7 Rh3 Qh7 d5
q2Q1r2/1k2n2K/rn2R2B/r2pPP1Q/b3p1R1/B2PPNq1/3bB1b1/6bB w - d6 1 2 illegal: No possible last move, all moves rejected
n2rN3/1n1pk3/3n2RQ/2pPbp2/1N2pQn1/1QP1K2q/5PPr/RBn3Q1 w - c6 0 3 illegal: Lossy FEN conversion
B2B2Q1/1Q2p2q/8/1n1rP1pP/2p1pnR1/2P1kNP1/Bq1b2Kp/1bNrqB2 w - g6 0 1 illegal: Lossy FEN conversion
1q1k4/1B6/pR1N1N2/N1b3pP/N1Pppr2/P1bn1B2/2K1P2R/1b2rrnR w - g6 0 2 illegal: Lossy FEN conversion
1BR3br/r2k4/3n4/p1BBRpPn/1KP1p1B1/4PR2/P3r1Qb/R2q1b1n w - f6 0 1 illegal: Lossy FEN conversion
b2bn1N1/4p3/q7/1P1BPp1B/Qp3P1R/1Nb1PNRp/2k1brP1/rn4K1 w - f6 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 h4 gxh4 b6 Bg7 Nc3 Bh6 Nb1 Bf8 e4 Qc7 b5 Qg3 Ba3 Qc3 Bb4 Qe3+ dxe3 cxb4 c4 a5 f4 d5 Kf2 Kd7 c5 Ke6 c6 h5 c7 a4 b7 h3 Qd3 a3 Nf3 a2 Qa3 d4 Bd3 h2 Kf1 h4 Bc2 h3 Qa4 d3 Qa3 d2 Bd3 d1B Qa5 Nf6 Nh4 Nbd7 b8N Ne5 Nf3 Ne8 Qa3 Be2+ Kf2 Bg7 Nfd2 Bb7 Bc2 Nc4 Bd1 Bc3 e5 Kd5 Qa4 Na3 Nf3 Ke4 c8B Kd3 Rf1 h1Q Nbd2 Nb1 Nb3 Rh6 Bd7 Rd6 Be6 Raa6 Bd5 Ba8 Nd7 Bd4 Nf6 Bb6 Bb7 Bd8 Ng8 Kc3 Bc6 Rd2 Bd5 Rb2 Bc2 Ra7 Bg6 Rd2 Bh5 Kc2 Kg3 Ra5 Rf2 Qc1 Kh2 Qa3 Kg1 Ra7 Qa6 Qa5 Rf1 Qb6 Qa4 Qa6 Rf2 Nc3 Rd1 a1B Rff1 Nb1 Rc1+ Kd3 Rc6 Bc3 Rg6 Ra2 Rg4 Kc2 Rh4 Ra1 Ng5 Rc7 Rf3 Rc4 Rg3 Rd4 Kh1 Rd1+ Kh2 Rf1 Nf3 Rf2 Kg1 f5
6R1/PNn3n1/6K1/QR2pP2/pr2B2R/2kb1P1q/PpNpP3/nqBr2n1 w - e6 0 2 legal: proof: g4 a5 h4 g5 b4 gxh4 d4 c5 Bh3 cxd4 Bd2 f5 gxf5 a4 Bf1 Bh6 Bc1 Bf4 Nc3 Bc7 Nb1 Ba5 bxa5 Qc7 Nf3 Qb6 Ng1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 b5 c4 d5+ Kf4 h5 c5 d3 c6 d4 c7 d2 f3 h3 a6 h4 a7 h2 Kg4 Ke5 Kg5 b4 Kg6 b3 Kg7 d3 Qe1 Kd4 Ba3 d1N Nc3 d2 Bg2 Ba6 c8R Ne3 Bd6 Qb6 Rb1 Nf6 Ba3 Bd3 Qg3 Na6 Rg8 Nc2 Qc7 Rb8 Bh3 Na1 Nd5 Ne8+ Kf7 Qh6 Ne3 Rb4 Bg4 Ng7 Qa5 Kc3 Nc2 Nc7 Nh3 Rh7 Ng5 h3 Bc1 Qb6 Rg1 h1Q Bh5 h2 Ne6 Qg2 Rd1 h1N Nd8 Qh3 Nb7 Nf2 Rh1 Rh6 Rh2 Rg6 Rb2 Rg1 Bg6 Rd1 Rb1 Qf1 Rh4 Nh3 Bh7 Qb5 Kg6 Ng1 Rb8 Nce8 Bg8 Nc7 Bd5 Qh3 Rg8 Be4 Rb2 Qd3 Na3 Qb1 Bc6 Bc2 Be4 Bd3 Rc2+ Kd4 Rc5 b2 Rb5 Kc3 Nc2 e5
r2R1n1b/k2Kp1Bp/pR1p2B1/3PPp2/2P3r1/N3b1qP/1b2QNP1/1R2n2n w - f6 2 3 illegal: Lossy FEN conversion
N2KQ2R/4P1NB/4p3/P2qPprR/P1nQq3/1Bnb1P2/r3rpk1/n1n5 w - f6 0 2 illegal: Lossy FEN conversion
n3r2q/pn1R1bP1/p6q/2pP2bn/k2KpQ1Q/PN4PP/B1RN4/B4r2 w - c6 0 1 illegal: No possible last move, all moves rejected
nB2k3/2q1P1p1/P6n/1pP3P1/B1NN3P/BQ1n1Qq1/r2pK1qR/3r2bb w - b6 0 1 illegal: Lossy FEN conversion
2rqR3/Qb1nB3/K2N3n/3PRPpq/pb1P2P1/p3qR2/1b2k1PN/6Qr w - g6 0 1 illegal: Lossy FEN conversion
q1b2b2/k2pr3/2pN2R1/Pp2bpK1/2PP2nN/2bPBP1B/6Qr/1NQ1n2b w - b6 0 1 illegal: No possible last move, all moves rejected
3Bq3/1K2P3/Q5B1/2rb1pP1/Pr1n4/Pk2q2n/1n1bB1P1/B2qNR1N w - f6 0 1 illegal: Lossy FEN conversion
1bbK4/4PRq1/q2r1Bn1/Ppp3n1/1pq3P1/2N2QP1/R1BpPPr1/N4k2 w - b6 0 1 illegal: Lossy FEN conversion
B5k1/N5p1/pQp2b2/1RPPp3/P3Q1bn/rP3r1q/2PbPp1B/1K3Qn1 w - e6 0 3 illegal: Other
1Bb2bb1/5nP1/3Nn1N1/k1pPb3/2P2rNr/1P2K2P/P3rR1n/2bN2R1 w - c6 0 1 illegal: Lossy FEN conversion
r1b1R3/b1BQ4/2QKpRr1/1Q1n2Pp/1pB5/2N3RB/3q2rk/R1NnR3 w - h6 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 f4 c4 g4 c3 d4 c2 b6 Ra4 g6 Na6 g5 Qe8 f6 Bh3 f7 Bg7 f8Q Qd8 f5 Nc7 b7 Ra3 b8Q Rc3 f6 Bh6 f7 Bg4 g7 Rb3 Bh3 Rd3 Qb5 Be6 Ne2 Rd2 Nbc3 Qd7 Re1 Qc6 Qe8 Bc8 f8R Qd7 Rf3 Qd8 Rg3 Nf6+ Kf4 Rf8 g8B Bg7 Bb2 Qd7 Nc1 Ne4+ Bf7 e6 Rf3 Qe7 Nb3 Qd7 Bc1 Rh8 Bh5 Qd8 Qec6+ Ke7 d6+ Kf8 d5 Rg8 d7 Ke7 Bg6 Nf2 Bd3 Bd4 Bc4 Rg6 Rfe3 Bc5 Ke5 Re2 Qd4 Nd1 Bd2 Rg2 d6+ Kf8 Rd3 Bb6 Bf4 Bc5 Ra2 c1R Rf3 Rcc2 Ra1 Ra2 Nc1 Ra8 Rf2 Ba7 Qd3 Qe7 d8R+ Qe8 d7 Ke7 Bg3 Qf7 Rff1 Qf2 Rf8 Qd2 R8f3 Kd8 Qdd6 Nd5 Qdc7+ Ke7 Rd3 Rf6 Bh2 Kf7 d8R+ Kg6 Q7d7 Kh5 Re8 Rg6 Rf6 Kh4 Bg1 Bb7 Bb6 Ba6 Bc7 Bc8 Rd4+ Kg3 Rd3+ Kh2 Kd6 Rg3 Rdf3 Rg2 Rg3 h5
5k2/4b2b/p1p1p3/1Q1pPr1K/N1BQ1Brb/R3R3/q1nB2R1/1BRBR2n w - d6 0 1 illegal: Lossy FEN conversion
Q2Rr1k1/1r2rqn1/2B1N1N1/pPbp4/P1n1q3/2N5/Q1BBq1QR/KR1r4 w - a6 0 1 legal: proof: d4 g5 g4 b5 f4 e5 fxg5 Bh6 dxe5 Bg7 h4 Bf8 c4 bxc4 h5 Bb7 Rh3 Be4 Rh1 Bg6 hxg6 Bd6 Rh6 Bc5 Rh1 Bf8 Kd2 h5 Kc3 f5 a4 c5 e4 d5 b4 h4 Kb2 f4 e6 f3 e5 f2 b5 h3 e7 h2 g7 Kf7 e8B+ Ke7 g6 Qd7 e6 Nc6 g5 Rb8 Qb3 Nh6 g8R Ne5 g7 Rb7 g6 Nf5 Bd3 f1Q Nh3 Qe2+ Bd2 c3+ Ka2 c2 Ng5 c1R Nc3 c4 Bc2 Qc7 Rb1 Re1 Ka1 Kf6 Bd7 Bc5 Bc6 Qf7 Rd8 Re8 g8Q Ng7 e7 Rd1 Qa2 Re1 Rg1 h1Q Ne6 Qhe4 Rh1 Rd1 Rh2 Re1 Qh8 Rd1 Qh3 Re1 Nd1 c3 Qg4 Nc4 Qg2 Rf8 e8Q Rh8 Bb3 c2 Nc3 c1R Bc2 Rcd1 Qf8 Nf5 g7 Rg8 Qd6 Re8 Qb8 Ree7 Qa8 Re8 Nd4 Ke7 g8N+ Kf8 Ne7 Ng7 Ng6+ Kg8 Rd7 Rf1 Rd6 Rf6 Rd7 Re6 Rd8 Ree7 Ne6 a5
r5n1/RrB1BB2/1Rbn3r/n3k1pP/Q5Pq/2K1NnRb/1N3Q2/r2B3B w - g6 0 1 illegal: No possible last move, all moves rejected
nb4q1/Kp3QR1/1BN1BRR1/2PpR3/1Q1PN1rB/b7/rb6/1nRrn2k w - d6 0 1 illegal: Lossy FEN conversion
kB1Q1Qq1/1R4Q1/p6p/1Pp1N1Q1/PR2N2r/1rbqRrK1/r1B5/nQn5 w - c6 0 1 illegal: Lossy FEN conversion
5r2/1QBQ1b1k/q4r2/p3pP1n/Nrn1Pq2/N1RQ1p2/BB3BrR/2KB4 w - e6 0 1 illegal: Lossy FEN conversion
qq4RR/1Bkr3B/6r1/b3Pp1Q/7P/N3n1KN/1b1QN1br/1qB1B2R w - f6 0 1 illegal: Lossy FEN conversion
2n4b/1QQ3qN/1b2B1k1/r2nPpN1/Qb3BNR/B3R3/1PNqb3/6Kn w - f6 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b5 a4 a5 axb5 Ra6 bxa6 Bd6 Ra4 Be7 Ra1 Bf8 Kf2 g5 h4 c5 d4 c4 e4 c3 a7 g4 a8Q f3 d6 a4 d7+ Ke7 d5 Kf6 h6 c2 h5 a3 h7 a2 d6 Bb7 h6 Ne7 Na3 Bc6 Bh3 Kg6 Bf4 c1B Qda4 Nd5 Nc2 Bd2 Re1 a1Q Qb7 Qc1 Re3 Qf6 d8B Qg7 d7 Bfb4 Be7 Bdc3 d8Q Nd7 Qdc7 Qd2+ Kf1 f2 Nf3 g3 Be6 Be5 Ng5 Ra8 Rh4 Ra5 Bd6 N7b6 h8N+ Kf6 h7 Bb5+ Kg2 f1N+ Kg1 g2 Ng6 Be2 h8N Nc8 Nf8 Ng3 Nhg6 Nh1 Bc5 Bec3 Ne5 Bd4 Nc4 Be5 Nfh7+ Kg6 Bd6 Qg8 Bc5 Bh8 e5 Qg7 Bd6 Bc3 Ba3 Bb4 Rc3 Bg4 N4e3 Be2 Kh2 g1B+ Kg2 Qg8 Ng4 Bb6 Re3 Qg7 Kg1 f5
4R1Q1/b1P2Nrp/B1rQ1B2/Pp2K3/b7/1Qr1b1R1/b2r1k2/B2R1NqQ w - b6 0 1 legal: proof: d4 f5 b4 c5 dxc5 a5 e4 axb4 exf5 Nc6 f4 Nb8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Ke4 Bd2 Kd5 Bc1+ Kc6 g5 Na6 h3 Nf6 h4 Nc7 Qd3 Ne6 gxf6 g5 Qd4 g4 Qd1 Ng5 hxg5 g3 Kd2 Kd5 Ke3+ Ke5 c4 d5 a4 g2 g6 b3 g7 b2 g8Q e6 c6 Bd7 c7 Qc8 a5 Ra6 c5 Rc6 Nh3 g1R Nd2 b1B Ba6 Rb6 c6 Rg7 Ng5 Ba2 Rh3 d4+ Kf3 d3 Bb2+ Kd5 Kf4 Bc5 Nf1 d2 f8Q Bg1 Qh5 d1R f7 Rd2 f6 Bd4 Qa3 e5+ Kg3 e4 Kf4 e3 Rd1 e2 Rg3 e1B Qb3+ Kc5 Qh1 Be3+ Ke5 B1f2 Ba1 Be8 f8R Qg4 c8Q Bd7 f7 Be8 Rh3 Qg1 Qc7 Bd7 Rg3 Be8 Qb1 Rb3 Qb8 Rc3 c7 Ba4 Qd8 Rg6 Qb3 Rc6 Qg7 Rg8 Re8 Rf8 Qgh6 Rg8 Qhe6 Rg7 f8B+ Re7 Bg7 Red7 Kf6 Kd4 Qb8 Re7 Bh8 Rg7 Nf7 Rc4 Qa8 Kd3 Qac8 Ke2 Ke5 Ba7 Qcd7 Bfe3 Qdd6 Kf2 Qc8 Rc6 Qb8 Rg6 Bf6 Rg4 Re7 Rg6 Qg8 Rg7 Re8 b5
Q1nB1R2/1NQKr3/N2BP3/1kpBpPp1/2R5/p2Qbb2/2p3n1/1rR2B2 w - g6 0 1 illegal: Lossy FEN conversion
3q1N1k/p3R2p/3nn1R1/rpP1NpQ1/4RbQp/2P5/BK1B2Bq/N4N2 w - b6 0 1 illegal: No possible last move, all moves rejected
8/B3BQ2/pbBK4/Nr1NN1pP/2r1n1R1/1n3qPR/1k4NR/nn3rQq w - g6 0 1 illegal: Lossy FEN conversion
2R3q1/N4nk1/p4R2/2KBQ1Pp/3BbqP1/1rr1b3/B1Qnp1B1/1R2NQr1 w - h6 0 1 illegal: Lossy FEN conversion
Nk1nb1rr/2q4b/1N2NR2/pP4Rr/nb1p4/B2NNq1N/P5KB/4R1Q1 w - a6 0 1 illegal: Lossy FEN conversion
2B3kr/1nB1n3/RKb3N1/2PpB2N/bp2QP2/3BBr2/q1q2B1b/1R1R1b2 w - d6 0 1 illegal: No possible last move, all moves rejected
Q4K1N/1Rpp3N/4n2p/1PN1bPp1/B2q2B1/2R1B2n/1RbB1rN1/1rn3k1 w - g6 0 1 illegal: Lossy FEN conversion
R1N2nk1/B5pN/1NP1p3/1nqpP1N1/4Q3/Rn2bR2/B1BR1p1K/rr5r w - d6 0 1 illegal: Lossy FEN conversion
NN1n1RBN/qR1Q2RR/8/N1pP3R/2r1npb1/1KP4b/rN1n3k/4b1r1 w - c6 0 1 illegal: Lossy FEN conversion
2b2b2/2p1BN1p/R6n/1Knk2pP/1PRB1R2/qB4Qr/1rRB3Q/b2qR3 w - g6 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 gxf5 e6 d4 Bb7 d6 Ba6 Nc3 Bc8 Nd5 Nf6 Nb4 Ng8 d5 e5 Nc6 Ba6 Nd4 exd4 Ra2 Bb7 Ra1 Bc8 Kd2 Kd7 Kd3 a5 Kc4 a4 f4 a3 e4 a2 h4 d3 b4 d2 f6 Ba6 e5 Ne7 e6+ Ke8 f5 Rg8 h5 Nd7 Nh3 Nc8 e7 Kf7 e8R Be7 Rh2 Rh8 Qc2 d1Q Bd2 Bf8 Re1 Ne7 Ng5+ Kg8 Nf7 Nb8 d7 Ng6 d6 Bb7 b6 Ra4 Kb5 Ne5 Bc4 Bc8 b7 Ra3 Bb3 Qe7 d8Q Nf3 d7 Nc6 b8B Nh4 Ba7 Na5 Bd4 Qe4 Qd3 Qe6 Qg3 Nb7 Qe8 Nc5 d8B Qe3 Qee5 Qef3 Be7 Qa8 Rc1 a1B Rc4 Ra2 Rg2 Rb2 Qh2 Qa3 Qeg3 Nf3 Rf2 Ne5 Rfe2 Ng4 Re6 Ra2 Ra6 Rb2 Nd6 Bd7+ Rc6 Qa7 Ba2 Be6 Rc2 Nh6 Bf2 Qa8 Qe3 Qa7 Bd8 Be7 f7+ Kf8 Qee5 Rb3 Rb6 Rc3 Bb3 Rh3 Qeg3 Bg5 Bg1 Bf4 Bh4 Bg5 Rc6 Ke7 f8R Bgf6 Rb6 Bg5 f6+ Kd7 f7 Be7 Re8 Rg8 Re4 Bg4 Rec4 Ke6 f8R Kd5 Rf6 Rh8 Nf7 Bd6 Ree6 Ra8 Rf1 Bf8 Ree1 Bc8 Bd4 Qa2 Rbe6 Qb2 Rg6 Ra2 Ra6 Qa3 Rf4 Rb2 Be7 g5
1R1BBr2/kq6/3RQR2/N1nb1Pp1/2Q1Q1P1/1qr2q2/1NPK1n1b/1b1N1r2 w - g6 0 1 legal: proof: d4 b5 e4 h5 Qxh5 c5 a4 cxd4 axb5 Ba6 Qh7 f5 exf5 Bc8 f4 a5 b4 d5 g4 Kd7 h4 Kc7 b6+ Kb7 b5 e5 f6 d3 f7 d4 h5 d2+ Ke2 d1Q+ Kf2 e4 h6 d3 Ke3 d2 Ne2 a4 Nbc3 a3 Na4 a2 Nb2 Be6 Nc3 Bd6 f8Q Qe7 Qe8 Na6 f5 Bc4 Qhg6 Nc5 h7 Bh2 Qe6 Rc8 Bd3 Ka8 b7+ Ka7 b8R Qb7 Bf1 Nf6 b6+ Ka6 Q8f7 Rhf8 h8Q Rc7 Rb1 a1R Be2 Qf1 Ncd1 Rcc8 Bf3 Ba2 Qfe8 Qb5 Qhg8 Qb3+ Ke2 e3 Bc6 Nfe4 Q8e7 Nd3 Be8 Nec5 Qe4 Nf2 Q7e6 Rc7 Rg1 Rc6 Rg3 Rc7 Rh3 Rc8 Rh6 Rc7 Rf6 Rc8 Nc3 d1B+ Ke1 e2 Bg5 Rc6 Kd2 Rc7 Rd8 Rc6 Rd6 e1Q+ Kc1 Qh1 Kd2 Be2 Ncd1 Bc4 Bh4 Bd5 Qgf7 Qc8 b7 Ka7 b8N+ Qcb7 Bg5 Rc8 Bh4 Qhf3 Nc6+ Ka6 Na5+ Ka7 Rh6 Rc7 Bd8 Rc6 Rc1 Bb1 Rf6 Ncd3 Qc7 Rc3 Qcc4 Nc5 Ne3 Ba2 Rh1 Re1 Ned1 Bb1 Rg1 Rf1 Rg3 Qh1 Rd3 Qf3 Rb6 Qe7 Rb8 Qeb7 Rd4 Bc6 Rd7 Bd5 Rd6 g5
2NR2q1/2Qnnr1n/1B3k2/pPBB1b2/Q1Q5/Kp2rRN1/nP1N3P/1br5 w - a6 0 1 legal: proof: g4 d5 f4 b5 c4 h5 gxh5 e5 cxd5 exf4 a3 b4 Bh3 b3 Bf1 Bb4 axb4 Qd6 Ra3 Qe7 Ra1 Qd8 e4 Ke7 d4 c5 Kd2 g5 Kc3 f5 h6 f3 d6+ Kf6 b5 f4 h7 c4 Kb4 c3 e5+ Kf5 d5 f2 e6 f3 d7 g4 d6 c2 e7 g3 e8N g2 Qd3+ Ke5 Qc4 Ne7 Ka3 Rg8 h8Q+ Rg7 Qhh4 Rf7 Be3 c1N Bc5 Na2 Ne2 g1N Ng3 Nh3 Bg2 f1B Nd2 f2 Bd5 Bd3 Rhf1 Ng5 Rad1 Nh7 Qa4 Bb1 Qhc4 Qa5 d8Q Bcf5 Qc7 Nd7 Nf6 Re8 Ng8 Nc6 Ne7 Kf6 Nc8 Re3 Bh1 Ne7 Bd5 Nb8 d7 Qb6 d8B Nd7 Q7f4 Qb8 Bdb6 Qa8 Qc7 Qb8 Rg1 f1R Rg2 Rh1 Rf1 Qa8 Rf3 Rc1 Re2 Rec3 Re4 Re3 Rg4 Qb8 Rg8 Qa8 Nd6 Qf8 Nc8 Qg7 Rf8 Qg8 Rd8 a5
n4KNQ/1N1Bn1N1/3b2Qn/2pPP3/r1npq3/R1Pn1rB1/3RR2B/2n4k w - c6 0 1 illegal: Lossy FEN conversion
K1B1rnR1/r5P1/6b1/1qpPRbQ1/1ppQ4/N3R1Nk/P2Bnr1b/1N5Q w - c6 0 1 illegal: Lossy FEN conversion
1RN2Q1B/3k3b/1nb1N2n/pP2p1R1/Q1Q2Rpq/Pb3nq1/2r1N1P1/5BK1 w - a6 0 2 illegal: Lossy FEN conversion
1N2rr1R/N1BBn2p/p1KpRn2/Pp1B4/4R2Q/1r1b1k1b/1P1Q3P/1q2r1Q1 w - b6 1 3 illegal: Lossy FEN conversion
2Q1b2k/pq6/2R2r2/nrBpP1B1/N1RPn2q/P6q/nBN4N/rBB2K2 w - d6 1 2 illegal: Lossy FEN conversion
3N2r1/BP1Q3K/q6b/rR1RPp1P/B1B2knN/R1N2p1q/n5Bn/1n6 w - f6 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 g4 exf4 d4 Nh6 dxc5 Ng8 b6 a5 b3 h5 gxh5 a4 Be3 a3 Bc1 Bb7 Bh3 Bc6 Bf1 Ba4 bxa4 Rh7 Bg2 Rh6 Bf1 Rh8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 g5 e4 d5 h4 a2 a5 d4 a6 d3 h6 d2 Kh5 g4 c6 g3 c5 g2 a7 Qd6 h7 Qd7 c7 Nc6 c8N Qh3 Nf3+ Kf6 e5+ Kf5 Nd6+ Ke6 Nb7 Kf5 Bc4 g1Q Nd8 Qgg2 Nc3 Na5 c6 Qe2 c7 Nc6 Qa4 d1N Be3 Nf2 Rhd1 Nb4 Rd5 Bh6 Rb1 Nc2 Rbb5 Na3 Qd1 a1N Qd2 Rc8 a8B Nb3 Bc6 Qef1 b7 Nb1 Ba7 Ng4 Qd4 Nh2 Qd1 Nc5 Qd4 Ra8 c8B+ Nd7 Qd1 Ne7 Qa4 Rf8 h8R Rg8 Rh7 Qd3 Rg7 Qdf1 Rg2 Qd3 Ra2 Qe2 Ra3 Qef1 Rd2 Nd5 Rd3 Nb4 Rdd5 Na2 Qd1 Qg1 Qd2 Qb6 Qd4 Bf8 Qd1 Qa6 Qd2 Bd6 Kh6 Bf8+ Kh7 Bh6 h5 Kg4 Nh4 f3 Qd3 Kf4 Qd1 Nc5 B8d7 Ne4 Qd3 Nf2 Bg4 Qg3 Bh3 Nfg4 Bg2 Qh3 Qf5+ Kg3 Qd7 Kf4 Rb2 Rc8 Ba4 Rc5 Rbb3 Ra5 Rbb5 f5
2Q5/1BK1nr1r/q1B1R3/1b1pP2k/b1n2B1b/1RNr4/N1PP1R2/NnB3b1 w - d6 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 Bb7 axb5 Bc8 Kf2 a5 Kf3 f5 e4 Kf7 h4 g5 h6 Kg6 b6 a4 h7 a3 b7 a2 h5+ Kh6 c6 Nf6 c7 Nd5 Bg2 Be7 Rh3 Nc6 b8N Bb7 c8B Nc3 Qf1 Ra3 Ne2 Qb6 Nd4 Qa6 Qc4 Bd8 e5 Ne7+ Nbc6 Ba8 Nb3 g4+ Kf2 g3+ Kf3 Rf8 h8B Rf7 Bb7 Rh7 Bh1 g2 Bf6 g1B Nb4 Rf7 Qc8 Rh7 Kg2 f3+ Kg3 f2 Kf4 f1N Bhc6 Ne3 Bg5+ Kg7 h6+ Kg6 Rf3 Kh5 Rf2 Nc4 Kf3 Rf7 h7 f4 h8R+ Rh7 Re8 Rf7 Kg2 f3+ Kg3 Rh7 Bf4 Rf7 Rg8 Rh7 Rg6 Rf7 Re6 Rh7 Rg2 f2 Kf3 f1B Re2 Ne3 Rf2 Bb5 Rf1 Nc4 Rf2 Ne2 Ke4 Ba4 Nc5 Rd3 Nc3 Bb5 Rb1 a1R Rb3 Ra3 Bh2 Rf3 Nba2 Rff7 Bf4 Ba4 Nd5 Nc3+ Kd4 Nb1 Ndc3 Nf5+ Kd5 Bh4 Rb4 Bb5 Nb3 Ne7+ Kc5 Ba4 Na1 Bb5 Nd5 Rd3 Rb3 Nb6 Kd6 Nc4+ Kc7 Ba4 Ndc3 Bb5 Bh1 Ba4 Bbe4 B8c6 Beg2 Bcb5 Bc6 Qa7+ Bb7 Qa6 Bhc6 d5
3NNq2/2n2B2/b1b4q/qNr2RpP/kP4PR/1b1B3K/b1Rn1B1Q/2b2R2 w - g6 0 1 illegal: No possible last move, all moves rejected
1bR5/B3bR1r/Q5nk/Pp2NqN1/2PbP2p/1N2Q1K1/5Npn/1b3NrB w - b6 0 1 illegal: Lossy FEN conversion
1Kb3N1/1R1B2Q1/b1Pn2rq/BBRnPpPk/3r4/8/3N2r1/1R2rBQ1 w - f6 0 2 legal: proof: h4 b5 d4 c5 b4 cxd4 a4 e5 axb5 a5 bxa5 g5 hxg5 Ke7 f4 Nh6 fxe5 Rg8 b6 Nf5 Bf4 Nh6 Be3 Rh8 Bc1 Ke8 b7 Bc5 Kf2 Bb6 axb6 Ng8 Ke1 Ke7 Qd3 Kf8 Qd1 Ke8 Kd2 h5 Kd3 d5 g4 h4 e4 h3 c4 h2 g6 Rh5 g7 Qd6 g5 Nd7 b8Q Nh6 g8B Kf8 c5 Kg7 c6 Kg6 b7 Nf6 e6 Ra4 e5 Rh4 e7 Rh3+ Nf3 Bd7 e8B Qc5 Nd2 Qf8 Rb1 Bc8 Bh7+ Kh5 Bd7 Rg3 Ne4 Rg2 Bd2 Nf5 Ba5 Qh6 Qd6 Rc4 Qf8 Nd6 b8R Ba6 Rg1 h1R Qg7 Bc8 Qe1 Rc1 Qf2 Re1 Nfd2 Rh4 R8b7 Rhg4 Kc2 d3+ Kc3 d4+ Kb4 Nd5+ Kc5 Rf4 Qg3 Rf6 Qe3 Rg6 Nf6+ Kh4 Ng8 Kh5 Nb3 d2 Qg3 d1B Nd2 Nc3 Kb6 d3 Kc7 Nd5+ Kb8 Ba4 Rc1 Bb5 Rc4 Ba6 Rc5 Rf6 Bhf5 Rg6 Bfe6 Nc3 Bc4 Nd5 Nf3 d2 Bb5 d1R Nd2 Rc1 Qf2 Rc4 Rh1+ Rh4 Qg1 Rg3 Rh3 Rg2 Rb3 Rd4 Rb1 f5
4NRQq/3n1nQ1/q2P1P1N/NbpPr2k/RB2n3/R6B/R2b1n2/2r1q1K1 w - c6 0 1 illegal: Lossy FEN conversion
2kN1Kq1/q7/b1BR1b2/1pP4Q/1R6/bPrr1BQ1/nbP1p3/n1N1B1NB w - b6 0 1 illegal: Lossy FEN conversion
2r4b/4n1Bk/1r4p1/pPn1n1P1/1Np1r2p/1NK1Q2P/B3BRRq/QQ5Q w - a6 1 2 legal: proof: c4 e5 d4 b5 dxe5 d5 a4 d4 axb5 Bh3 e4 Be6 f4 Bd5 f5 Qg5 f6 Qxf6 cxd5 Qd8 Kd2 h5 b4 c5 g4 f5 h3 Kf7 g5 Kg6 e6 f4 d6 f3 e5 h4 e7 f2 e8Q+ Kh7 e6 d3 d7 g6 e7 Qb6 d8Q Nf6 Qd5 Qa6 b6 Kg7 b7 Nh5 Ra2 Ng3 Rh2 Nd7 b8Q Nf5 Rg2 Kh7 Nc3 Qd6 Bb2 Ne5 Nge2 Bg7 Nc1 c4 Be2 f1R Nb3 Rg1 Qa1 Re1 Qdc6 Rf8 Nd5 Bh8 Kc3 d2 Qbb6 Rb1 Qe3 Rf6 Qb8 Re1 e8B Ne7 Qcb7 Qc7 Ba4 Rb6 Qc6 Qd6 Qbb7 Rc8 b5 Qc5 Nb4 Qd6 Qce4 Qb8 Qeb1 d1N+ Kc2 Nf2 Kc3 Nfd3 Rf2 Kg8 Qh1 Kh7 Bf3 Rc1+ Kd2 Nd5 Rg2 Nc5 Qc3 Ng4 Nd4 Re1 Bb3 Ree8 Qe3 Ra6 Bc3 Ree6 Rc2 Qh2 Ba2 Ne7 Nb3 Rac6 Bg7 Rb6 Kc3 Re4 Rcf2 Ne5 Be2 a5
1qB5/p1N3PB/KQN2QRB/b2pP2p/q2p3P/1r4B1/b1n1kn2/1b1R2R1 w - d6 0 1 legal: proof: f4 e5 b4 g5 fxg5 b5 a4 Qf6 d4 exd4 c4 Qe6 c5 Nh6 c6 Qe3 axb5 Qf3 b6 Ng8 b5 Qf6 Ra5 Qd8 Ra4 Na6 Ra5 Rb8 Ra1 Rb7 cxb7 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Kg4 e4+ Kg3 g6 Kf2 g4 c5 g5 h5 g7 f5 g6 f4 Na3 f3 Bh6 Na6 b8R Qf6 b7 Qc6 b6 Nf6 g8B Nb4 g7 Ng4 Bh7 Nc2 Nb5 Rg8 Nc7 Qa4+ Kd5 Bd6 Ba6 c4 Qd3 c3 Rd1 Bb4 Kc4 Ba5+ Kc5 Kg3 Qf1 f2 Nf3 Rf8 Ne5 Rf3 Nc6 Re3 Ne6 Kf3 Nc7 Rd3 Rg1 Re3 Qc4 f1B Qe6 Nf2 Qe5 Bh3 Qf6+ Bf5 Rg6 Qa1 Kb5 Ke2 Ra8 Be6 b8Q Bb7 Qbd8 Ba2 Rc8 Ba8 b7 Bb1 b8B Rd3 Ne7 Bd5 Nc6 Bda2 Bb7 Qb2+ Ka6 Qb3 Nd5 Qb4 Bg3 Qa4 e5 Ne1 Nce7 c2 Rc1 Nf3 Rg1 c1Q Rc2+ Qd2 Bc8 Ne1 Rc1 Qdb4 Rd1 Rb3 Nc6 Qb8 Qb6 Nc2 Nc7 d5
4QQ2/N2p1rn1/1b1n1k2/1PpP2Rb/2P1B2K/4prnR/1qNQ4/Nr2N1Bq w - c6 1 2 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 f4 Kf7 Kf2 a5 c4 e5 b4 h5 d4 e4 g4 h3 Kg3 a4 g5 a3 b6 h2 f6 a2 b5 Ra6 b7 Nc6 b8N Bc5 g6+ Ke6 g7 Ba3 f7 Qf6 f8Q Nce7 Nc6 Rh7 Be3 Bb7 Nf3 Nh6 g8Q+ Nf7 Ne1 Bc5 Nd2 Ra3 Bd3 Bb6 Na7 h4+ Kg4 h3 Bg1 Bc6 Nb3 Nf5 Qd2 Ng7 Qh8 Qe5 f5+ Kf6 Rb1 Bd5 Na1 Ba8 Bc2 Rf3 Qe8 e3 Qhf8 Be4 d5 Qb2 Rc1 Bd3 Bb1 Be2 Be4 Rf2+ Kg3 Bh5 Kh4 Rf3 Qd8+ Ke5 f6 Nd6 f7 Nb7 Bb1 Nd6 Qde8+ Kf6 Be4 Qc3 Bf2 Qb2 Rg1 h1Q Rg5 h2 Bg1 Qa3 Qh8 Qb2 f8N Bc5 Ne6 Bb6 Nb3 a1R Ned4 Rb1 Ndc2 Qg2 Rd1 h1N Nba1 Ng3 Qhg8 Ne6 Qgf8+ Rf7 Qc1 Qf1 Rd2 Ng7 Rh2 Qg2 Qd2 Qh1 Rh3 c5
3R3n/1p1Qp1p1/1rbrN1kq/1QBNPp1b/K2nq1P1/1R1R3B/1P2qRN1/8 w - f6 1 3 illegal: No possible last move, all moves rejected
Br1B3b/1N2K2R/k2N1B1P/1bPQ2pP/2nN3b/2rnqrr1/2B2R1b/1N6 w - g6 0 1 illegal: Lossy FEN conversion
4k3/B1Bp1p2/3Rbq2/QpP1R2r/RK1p4/2PPbb2/1r1q1N1N/1nB2R1B w - b6 0 1 illegal: Lossy FEN conversion
2B3k1/Rb3q1b/B4qBQ/1Pp1N2n/Pr5r/1Kn2Pn1/2B2B2/b1NQ2Q1 w - c6 0 1 illegal: Lossy FEN conversion
rN2NnQn/3n2r1/1R1Q2p1/b2P2Pp/4k3/qR1Nb3/NR1B2KP/1N4b1 w - h6 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 b5 a4 Ba6 b4 Kd7 bxa5 b4 Bc4 Bxc4 a6 Bb5 axb5 b3 b6 Ke8 Kf1 Kf7 d4 Kf6 f4 c5 g4 e5 b7 b2 d6 e4 a7 g6 g5+ Kf7 f6 Ke6 f5+ Kd5 d7 c4 f7 e3 f6 c3 Nh3 c2 Nf2 e2+ Kg2 e1B Ra6 Bc3 Rb6 Bc5 f8R Ba5 f7 Nh6 Bd2 c1B Nd3 Qe7 d8N Ke4 Nc6 Rg8 Ncb4 Nd7 b8N Rg7 Na2 Qd6 Rc8 Nf8 Rb3 Bcb6 Rc2 Qa3 Rf1 Bc5 Rf6 Bcb6 d5 Bg1 Qf1 Nd7 f8N Nf7 Rfb6 Nh8 Ne6 Nf8 Qf2 Bb4 Nc7 Ba5 Bb4 Bd2 Qf6 Bde3 Bd2 Qb4 Na3 b1N Rcb2 Nc3 Nb1 Na4 Qd6 Qa3 Ne8 Nc5 Nd7 Rc8 Nb8 Ncd7 a8Q Rd8 Qac6 Rc8 Qc3 Rd8 Qcf6 Rc8 Qf7 Rd8 Qg8 Rc8 Na6 Ra8 Nb8 h5
4Kb2/1pkPb1N1/6NQ/pPp1P1nb/2q1nBNB/Q2B4/3rN2R/3Brr2 w - a6 0 1 illegal: No possible last move, all moves rejected
Q1qNN1bb/1pq2pnp/7P/pP1RN3/P1R1BNQp/3Rr3/k1r5/1n3RK1 w - a6 0 1 illegal: Other
4rrbQ/1k1p4/1B5n/1P1N1Ppn/RR1q4/2b1prP1/1BRrP1Nb/N2B1K2 w - g6 0 1 illegal: Lossy FEN conversion
1B6/3R1P1Q/n3r1KQ/PpP2Nn1/4Br1R/N2rbP1q/1r1QR1q1/3b1k2 w - b6 0 2 illegal: Lossy FEN conversion
R3bN2/2nN4/QB3P1Q/2nPpKp1/1B2RpPp/2P2Rb1/4B2b/q1r2r1k w - e6 0 1 illegal: No possible last move, all moves rejected
1b1n1rQ1/3p3p/1RQN1n1k/RR1Pp3/2bn3P/N4bPn/BrQP3q/2K3B1 w - e6 0 1 illegal: No possible last move, all moves rejected
R1r3Bb/np4B1/R1p1p1Kn/3pP2B/5PP1/1NQP4/B5bk/2rrNBqr w - d6 0 1 illegal: No possible last move, all moves rejected
Nk5n/3B1Q2/Pq5P/1BBRpPq1/Kn4Nr/Rb1P1q2/2p1q1N1/b3B3 w - e6 0 1 illegal: Lossy FEN conversion
1q6/R1n1Pr2/3nrn2/4BPp1/rN1rNr2/P1Kp2Nk/BRPQ4/2N4B w - g6 0 1 legal: proof: d4 a5 b4 c5 dxc5 axb4 e4 f5 g4 h5 gxh5 b6 Bb2 f4 Ba3 Qc7 Bc1 Qd8 Bd3 e5 Kf1 Bb7 Ke1 Bd5 Bb5 Be6 Bf1 Bf5 exf5 e4 Bd3 e3 Bf1 e2 Nd2 Bd6 Nb1 Be5 Kd2 Bd4 Ba3 Ra7 Bc1 Be3+ fxe3 Ra8 h4 Kf7 e4 Kf6 h6 e1R h7 d5 h5 Kg5 h6 b5 e5 b3 e6 b2 c6 f3 c7 Kg4 c8B d4 e7 b4 Ne2 d3 Be6 b3 Nbc3 b1R Bb2 f2 Ng3+ Kf4 Nd5+ Kg5 Nb4 Qd6 Be5 b2 Bg2 f1R Kc3 Rf4 Qd2 Kg4 Rg1 Ra6 Bh1 Nf6 Bf7 Rd8 h8N Kh3 h7 Rf8 Ng6 Ra4 h8N Na6 Be6 Qd8 Nf7 Nc7 Nd6 Rf7 Nde4 Qb8 Bb3 Re3 Bc4 Rbe1 Rb1 Ref1 a3 Rh4 Ba2 Rff4 Rgc1 Rh8 Re1 Rd8 Re2 Rd4 Rh2+ Kg4 Rh8 Re1 Rd8 Kh3 Rd7 Re3 Nf8 Re1 Ne6 Re2 N6c5 Re3 Rg1 Re2 Nb3 b1N+ Kb2 Re3 Nc1 Nc3 Re1 N3b5 Rf1 Nce8 Ra7 Nbd6 Kc3 Re2 Nb3 Nc7 Rb1 Re3 Rb2 Qb7 Nc1 Rf2 Bf4 Qb8 Nc5 Re6 Be5 Rff4 Nce4 g5
nB1qkrR1/N2n1rR1/1N1r3P/BPpp4/4r3/1N1N2PP/2Q2b2/q2b1BK1 w - c6 0 1 illegal: Lossy FEN conversion
1r1Q1n1k/3p2n1/N1B1b1qb/1pP4P/1qBN2B1/b4NnR/3PKPq1/4R1B1 w - b6 0 1 illegal: Lossy FEN conversion
1N2r1rN/b5kB/b1Nn3q/Q1nPpb2/2n3pP/3BPP1N/4p3/K1R2R1B w - e6 0 1 illegal: No possible last move, all moves rejected
1n6/rQ2Pk2/PN2p3/PB1pP1B1/1pKbNn1B/1R1R1N2/1rp5/bnB4q w - d6 0 1 illegal: No possible last move, all moves rejected
1K1Bbn2/p2p2NQ/1BN2RB1/Pk1PpBn1/2b5/7r/1nqPPRnr/2Rb4 w - e6 1 3 illegal: No possible last move, all moves rejected
2Q1N1b1/3N1pn1/2br1n2/1pRppP1r/1qP1B2N/3bP3/kP1RBR2/b1K3N1 w - e6 1 3 illegal: No possible last move, all moves rejected
4QK1R/P1B2Q1Q/3N4/PprP3P/nnr1npQp/8/R1N1bp2/1qk1b2B w - b6 0 1 illegal: No possible last move, all moves rejected
4Rb1k/Kp1p2R1/b3Q2B/2pP1pp1/1B2r1Nb/P2R1R1Q/p1P2Pq1/N1n5 w - c6 2 3 illegal: No possible last move, all moves rejected
3n4/1b2pn1r/5P1p/1PpQP1BP/1QpKN1pb/1N2rB2/3bR1R1/N1Nq1k2 w - c6 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 f5 gxf5 Qd7 Bh3 Qd4 Bf1 Qd8 d4 Kd7 Kd2 Kd6 Ke3 Kd5 b4 g5 h4 a5 f4 h6 b6 a4 b7 a3 f6 a2 f7 g4 h5 Nd7 b8Q Nb6 f5 Qd6 Nc3+ Kc6 d5+ Kd7 Rh2 Rh7 Rg2 Bg7 f8N+ Kd8 Ne4 Na4 Nd7 Bc3 Ndc5 Nf6 Nb3 Bd2+ Kd4 Kd7 e3 Ra7 Be2 Ne8 Bf3 Bb7 Ne2 Nc5 f6 Ra3 Rb1 a1B+ Rb2 Be1 Bd2 Bh4 Nec1 Ne6+ Kc3 Qh2 d6 Kc6 d7 Kd5 d8N Qh1 Nc6 Nd8 Nd4 Nd6 Nc2 N6f7 Re2 Ke5 Rg2 Kf5 Kd4 Qf1 b5 Qe1 Qa8 Qe2 Qe1 Qd1 Nbc5 Rc3 Ra2 Bb2 Na1 Ba3 N5b3 Bb4 Nd6+ Kg5 e4+ Re3 e5 Kf4 Rb2 Bc8 Qd5 Bb7 Rf2 Kg3 Ne4+ Kh3 Rg2 Ba5 Qf1 Bb4 Qd3 Ba5 Qc3 Bb4 Rg1 Kh2 Rg2+ Kh1 Re2+ Kg1 Rc2 Ba5 Qb4 Kf1 Kc5 Rc3 Bg5 Re3 Rg2 Bc8 Rce2 Bb7 Qa3 Bc3 Qb4 Bd2 Kd4 c5+
4knQ1/qQ6/n7/1Pr2pP1/bB1b4/QqP2PbN/QprRN3/4rRKQ w - f6 0 1 illegal: Lossy FEN conversion
Nq1Q1B1B/1KQn1B2/1b1QR3/1br3Pp/2Npr1P1/1P6/Qbb2P2/2k3n1 w - h6 0 1 illegal: Lossy FEN conversion
N1RB2B1/Q2q2PP/1P6/2R1Ppr1/K1Q1Rb1p/5nrb/2r1R3/1k1q1Bb1 w - f6 0 1 illegal: Lossy FEN conversion
4nn2/NkB1Qq2/1b6/1p1K1NpP/1Pn2RR1/2rQr1Pr/1bNRP2n/2R5 w - g6 0 2 illegal: Lossy FEN conversion
1rBNn3/1qP3R1/1R6/1q2Pp2/3BBPrk/3r1n1B/n2Pb2B/Kn3Q1B w - f6 0 1 legal: proof: h4 g5 hxg5 b5 b4 c5 bxc5 b4 a3 b3 Rh4 Bg7 Rh1 Bc3 c6 Bb4 axb4 e5 Na3 d5 Nc4 e4 Bb2 e3 Bf6 Bg4 Be7 Qd7 Nxe3 Qd6 c4 Bc8 c5 Qd8 Nc4 dxc4 g4 h5 e4 a5 b5 h4 c7 h3 g6 c3 b6 c2 g5 c1Q b7 b2 g7 b1N c6 a4 g6 a3 Bf6 a2 Nf3 h2 Rg1 h1N Ng5 Ra6 Ne6 Qd7 Bh3 Ra3 Bd4 Ke7 Nd8 Nf6 g8B Qc4 g7 Ng3 Bh7 Nf5 g8B Ne8 Rg7 Na6 b8B Qb5 f3 Bb7 c8B Rd3 Bh2 Nh4 c7 Qdc6 Ke2 Nb4 Qf1 Ba6 Kd1 Qcb7 f4 Nf3 B7f5 Rh4 Kc1 Rg4 Kb2 Kd6 e5+ Kd5 Bfd7 Ke4 Ne6 Kf5 Bc6 Ra3 Rh7 Rd3 Nd8+ Kg6 Rg7+ Kh5 Bh7 Kh4 Qg2 Nc3 Rc1 a1R Bhe4 Nb1 Qf1 Ra4 Rd1 Na2+ Ka1 Rb4 Rc1 Rbb3 Rc3 Rb2 Rb3 Qc4 Bhg1 Qa7 B8b7 Rc3 Ne6 Nh2 Bh1 Nf3 Bh2 Qd5 Bdg1 Be2 Bd4 Rd3 Nd8 Qa6 Bc8 Qd7 Ra3 Rb8 Be4 Qb7 Ra6 Qdb5 Rb6 f5
R1r1N2b/1r1Rq3/K3N1p1/B1Q2RPp/2P3NP/NnP3rb/1r2kb2/3n1R2 w - h6 0 2 legal: proof: e4 c5 a4 b5 axb5 d5 exd5 f5 d3 c4 dxc4 Bd7 Bd3 Bc8 Be4 fxe4 Kd2 Kd7 Kc3 Kd6 Kb4 Ke5 f4+ Kf5 h4 e5+ d6 e3 g4+ Ke4 g5 a6 f5 e2 b6 e1R Ka5 g6 b4 Nf6 d7 Re3 b5 Ng4 f6 Bg7 f7 Rg3 f8N Ne3 Ne6 Ra7 Na3 Qe7 d8R Rb7 Bd2 Nd7 Nf3 Nc5 Qg1 Nd1 Nh2 Rf8 Be1 Bh8 Ng4 Kf3 Rd7 e4 Qd4 e3 Rf1+ Ke2 Rf5 Rd8 Bb4 Rg8 c3 Nb3+ Ka4 a5 Qc5 Ra7 b7 Rf8 b8R Rb7 b6 Rd8 Kb5 a4 Nc2 a3 Ra8 a2 Ba5 Rf8 Rc1 a1R Na3 Rb1 Ka6 Rb2 Ra1 Nf2 Rf1 Nd1 Rdd5 Bd7 Rd3 Rc8 Rd4 Bc6 Rd8 Bg2 Rd7 Rbc7 b7 Bh3 b8N Rb7 Rc7 Kd3 Nd7 e2 Ndf6 e1B Ne8 Ke2 Rd7 Bf2 Rf6 Qd8 Rf4 Qe7 Rf5 h5
b2B1N2/3b4/2k2Npb/pnN1pP2/1RNrP3/P1Q3PB/1Brbq3/Kn2B3 w - e6 2 3 legal: proof: e4 d5 c4 c5 cxd5 f5 b4 g6 bxc5 f4 h4 Be6 a3 Bh6 h5 Bf8 h6 Qc7 Qf3 Qe5 Qd1 Qg7 hxg7 Nh6 Ra2 Bf5 Rb2 Bc8 Rb3 Ng8 Re3 fxe3 d4 Kd7 f4 b5 f5 h5 d6 a6 d5 h4 g3 b4 Nd2 b3 Nh3 e2 Nc4 b2 Kd2 e1B+ Kc2 b1B+ Kb2 Rh5 Ng5 h3 Qd2 h2 Ne6 Ba2 Ka1 Nc6 Bb2 Nf6 g8N Nd4 Qc3 Nb5 Bh3 Bd2 Rb1 h1Q c6+ Ke8 c7 Kd7 Qd4 Qh2 Qc3 Bb7 c8N Bfh6 Nd4 Qe2 Ne6 a5 N8b6+ Ke8 Nd7 Rd8 Ndc5 Ba8 Nf8 Bb3 Bf1 Rh2 Bh3 Ba4 d7+ Kf7 d6 Nd5 Nf6 Rg2 Qc2 Ndc3 Qd3 Rg1 Qf3 Rc1 Qe3 Rc2 Qd3 Rc8 d8B Rc6 d7 Rd6 Bb6 Rd4 Rf1 Nb1 d8B Nd6 Qc3 Bd7 Bbc7 Nb5 Bf4 Qh2 Be3 Qe2 Bf2 Qg4 Be1 Qe2 Nh5 Ke8 Bb6 Nc7 Nf6+ Kd8 Rf3 Kc8 Re3 Nb5 Bd8 Kb8 Qb4 Ka7 Rb3 Kb8 Qc3 Ka7 Nce6 Kb7 Nc5+ Kc6 Rb4 e5
1b1knQBN/2R1R1B1/4bP2/1PbpP1K1/BPqNb3/2pP4/2b1qn2/4R2r w - d6 0 1 illegal: No possible last move, all moves rejected
5B2/1p6/R1qrq1nK/pN2Pp2/2r1PPRp/3qb1Q1/BP2kP1r/R4N1N w - f6 0 1 illegal: No possible last move, all moves rejected
1K2q3/P1N1b2k/2R3q1/2Ppbbq1/P1RBPN2/1nrP1N2/1bQ4n/1B4Qb w - d6 0 1 illegal: Lossy FEN conversion
6N1/p2R2p1/2k1BqPP/Pp2qPq1/1r1Q2Pb/n1n3r1/2RQ2N1/KnB4Q w - b6 1 2 illegal: No possible last move, all moves rejected
1b1nK3/PNRbN2r/4R3/6pP/nB1pQ2P/n2Bb1Pn/Q1rP1q1Q/2k4b w - g6 0 1 illegal: Lossy FEN conversion
1QN5/PPpbnbp1/1rP1p1R1/3Rr1Pp/KB2Qn2/b2N4/4P2n/2RB2kq w - h6 0 3 illegal: No possible last move, all moves rejected
3b2NB/2Nn2nb/3q1Qp1/pPRpp1P1/p2PP1K1/2P3Rr/RB2Q1n1/r6k w - a6 2 3 illegal: No possible last move, all moves rejected
B3bqq1/3P4/1B1p2rk/pPB5/Bq1P2R1/PN2KrqN/7P/1Q1Rbrnn w - a6 0 1 illegal: Lossy FEN conversion
4k2B/P7/1nn1r1p1/QnPpPN1n/r1q1r1P1/N3BB2/2PK2q1/2BR2B1 w - d6 0 2 illegal: Lossy FEN conversion
8/BpP1NP2/B1rP1b1N/PrR2NpP/1Q3q2/1nKNr3/B1p1n1b1/6k1 w - g6 0 1 illegal: Lossy FEN conversion
3r2q1/Q4n2/1qpR4/3Kn1pP/2pbPpP1/Q1P1Q1Bk/Q4Pp1/2nN1R1N w - g6 0 1 illegal: Lossy FEN conversion
R1b2q1B/1pp2Qp1/1r1b1N2/pP6/b1pKBRP1/2PPPP2/2k1N1r1/q1n4B w - a6 0 1 illegal: No possible last move, all moves rejected
3N2r1/2p2KrQ/1p2R3/2bpP3/NBbPb1q1/P1P1r1n1/P1NkPn2/R4R2 w - d6 1 2 illegal: Lossy FEN conversion
2K1Q3/1nr2nQp/Q5b1/BQ2pPQ1/2Rp1r2/3B1Rqk/RbQ1Q2p/2N1N3 w - e6 0 1 illegal: Lossy FEN conversion
1nB2B2/rnq1Q2Q/r6Q/2ppKNpP/N1pQNB2/2b1R3/R7/1kB1R2b w - g6 0 1 illegal: Lossy FEN conversion
3nbNrR/2B1b2Q/Q1PN4/Pp5B/1kpN2Q1/3BRqKp/4B1B1/2b3n1 w - b6 0 1 illegal: Lossy FEN conversion
rkn2B2/6q1/2r2r2/pPR5/PK2nN2/pQpNQ1b1/N2RpNBB/6NQ w - a6 0 1 illegal: Other
n2b4/B1Q1Bk1B/2p4Q/n1Pp1pQN/3NbNp1/6P1/2qrK1Qq/2r1RRQ1 w - d6 0 1 illegal: Lossy FEN conversion
2rq2B1/kb2PR2/1Rq5/3BQ1Pp/KNR2b2/2qN4/1Q1Br1b1/BQ3qN1 w - h6 0 1 illegal: Lossy FEN conversion
n2r4/1n2QK2/Bn1RQB2/q5pP/b1q1N1Pb/R1n2RN1/Q1N2Nk1/2qB4 w - g6 0 1 illegal: No possible last move, all moves rejected
1b1BK3/3B2pB/3BQ1Q1/3NbpP1/R1rb1PB1/1rn2n1B/6Rq/2BbrN1k w - f6 0 1 illegal: No possible last move, all moves rejected
N4nnk/2BN1R2/p2QRb2/Ppn1RP2/1q1QN1NK/1n3B1R/q5Q1/5n2 w - b6 0 1 illegal: Lossy FEN conversion
4Rq1B/1n2r2r/2N2b2/P1Q1RKpP/4N3/1nRqBk2/n2Q1N2/1bN1qBR1 w - g6 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a6 Kd7 h6 Kd6 Bh3 Ke5 Ke2 Kf4 Kd3 e5 a4 b5 a5 c5 a7 b4 h7 b3 d6 b2 d7 Bd6 f6 Nh6 f7 Rg8 f8R+ Nf7 h8B Bc7 Ra3 Bb7 Ne2+ Kf3 Bf1 Bd5 h4 Qe8 d8N Be6 h5 Nc6 Nb7 Bb8 Nbc3 Ba2 Rg1 Nd4 Nd6 b1Q+ Qc2 Bc7 Nd1 Bd8 Rb3 Rc8 a8R Rc6 Rb5 Bh4 Rc8 Nb3 Rc7 Qe7 Ra8 Rf8 Re8 Nd8 Rc8 Nb7 Rc7 Bg3 Rcc8 Kg4 Ke4 c4 d4 c3 f4 Rb6 d5 Rf7 f5 Qf6 Qd3 c2 Rc3 Re7 Bf4 Qf7 f6 c1N Qc2 Qg8 f7 Rc6 Qd3 Qc2 Bg5 Bb1 Rbc5 Na2 Nc1 Rec7 f8Q Rb6 Nc4 Rh6 d6 Rh7 d7 Qd2 Qf2 Qf8 d8N Re7 Nc6 Qc2 Nd6 Qd2 Kd5 e4 Qdd4 Qd3 Qd2 Kf3 Nf2 e3 Nde4 e2 Be3 e1Q Rb5 Rc7 Ke6 Bh4 Re5 Bf6 Qc5 Re7+ Kf5 g5
3Q1brR/NK1b1p2/n4R1N/Q1bQnPp1/2q1nrP1/2RbB3/B2Q2Bk/R7 w - g6 0 1 illegal: No possible last move, all moves rejected
2NnR2B/2k2n2/Pr3BK1/b4bPp/2BQ4/Rq2NRnQ/N2rrrPQ/8 w - h6 0 1 illegal: Lossy FEN conversion
QB3R2/5Rr1/N3n3/1npP2r1/B1n1P1bB/N2bR2K/3nP3/3QB1kB w - c6 0 1 illegal: Lossy FEN conversion
2nK4/Pk2B3/3n2rN/2pP1Bp1/q1N2rN1/P1QqRp2/1N6/bQB1R2N w - c6 0 1 legal: proof: g4 e5 c4 h5 gxh5 d5 cxd5 a5 f4 a4 fxe5 a3 d6 Qg5 d7+ Kd8 dxc8Q+ Ke7 bxa3 Qf6 a4 Qd6 a5 Qd8 Bb2 Ke8 Ba3 Nd7 Bc1 Nb8 Kf2 f5 Kf3 b5 Kf4 g6 d4 b4 h4 b3 e4 b2 a3 Rh7 h6 Rg7 a6 Ke7 Kg5 f4 h5 f3 d5 Qd6 e6 Nf6 e5 Rf7 a7 Ng8 h7 Nc6 h8N Rf4 h6 Qd8 h7 Na5 Ne2 Qd7 Bh3 Nb7 Ng3 Nd8 Bf5 Nf6 Nf7 Qd6 h8B Ke8 e7 Re4 Nh6 Rd4 Re1 Ng4 Nd2 b1Q Bf6 Rb8 Re3 Qbb4 Nc4 Nf2 Nb2 Qa6 Nh1 Qba4 Qd2 Bg7 Qc3 Rh4 Qb7 Rf4 Qbb3 Rb6 Qa2 Re6 Qb1 Kd7 e8N Kc8 Be7 Qd3 Nf6 Kb7 Nfg4 Rb6 e6 Nc6 Nf7 Bf8 Kf6 g5 Nfh6 Ne4+ Kf7 Bg7 Ke8 Nd6+ Kd7 Nd4+ Kd8 N4b5 Bf8 Qdd4 e7 Nc8 e8N Rg6 Be7 Qd3 Nd6+ Kb6 Ndc4+ Kb7 Ra2 Bh8 Nd1 Be5 Rae2 Bd4 Re1 Bg7 Qd2 Ba1 Ndb2 Nbd6 Qc3 c5
3qNnRR/N3k1N1/3rP1B1/1pP2bb1/Q1N4B/1r5P/r3B1p1/QNK2r1n w - b6 0 1 illegal: Lossy FEN conversion
2bn1N2/B2B4/2qQK2b/qB3pPp/Qr2P2r/5PB1/3b2N1/RBkr1R1Q w - f6 0 1 illegal: Lossy FEN conversion
1k1bBR1N/4rb2/2Q3qp/Ppn1R2N/1P3rqK/1np5/1Q3QQP/Q1BN1q2 w - b6 0 1 illegal: Lossy FEN conversion
r3bbb1/2P4p/R1K3Q1/qR1PpPNN/3B2p1/k2NB3/B3Q2R/R2q3r w - e6 1 2 illegal: Lossy FEN conversion
8/1pk2N2/Rq2b2P/BpPpn1Q1/2Q3N1/2nb2P1/rQ3BR1/NrbBB2K w - d6 0 1 illegal: Other
1n3R1N/q2p1b2/Q1p5/B4BpP/2RQ2Pb/2N1rqk1/B2PQ3/NB1Kn2b w - g6 0 2 legal: proof: c4 a5 f4 e5 fxe5 h5 b4 b5 cxb5 h4 a4 h3 b6 Qg5 b5 Bb7 Qc2 Rh6 Qh7 Bc8 b7 Qd8 Qd3 Rh8 Qf5 Ra6 Qh7 Rd6 b6 Rd5 Nxh3 Rc5 Ng1 Rb5 axb5 a4 e4 Ke7 h4 Ke6 g4 f5 h5 c6 Bb2 a3 Bc4+ Ke7 e6 Kd6 e7 f4 e8B f3 e5+ Ke7 e6 Kd6 e7 f2+ Kd1 f1B Bc3 a2 Nh3 Nh6 Ba5 Ke5 Bg6 Qe8 Ng5 Kf4 Nc3 Bd3 Rf1+ Kg3 Bf5 Qf7 e8B Ng8 Rc1 a1Q Ba2 Na6 b8N Qg6 b7 Be4 b6 Qd6 Beg6 Qd3 Nf7 Nh6 Rf2 Nb4 Na6 Bh1 Nc5 Be7 Nb3 Re8 Nh8 Nf7 b8Q+ Ne5 b7 Na6 Qa7 Bh4 Qd4 Nf3 b8Q+ Re5 Qa8 Ne1 Qg8 Nb8 Qa6 Re3 Qgc4 Qe4 Qe2 Qf3 Bfb1 Bb7 Bgf5 Bc8 Qab6 Ba6 Rf1 Bc4 Qa6 Bf7 Rf2 Qb2 Na1 Qb7 Ne4+ Kh3 Rc4 Qa7 Nc3 Kg3 Bfd3 Qg2 Rf6 Qf3 Bf5 Be8 Rf8 Bg6 Qc8 Bf7 Qa6 g5
3K4/P1rRb1QB/p1NQ2b1/rpP1b2B/5Q2/1n1n2pR/P1kB4/Q1bN2R1 w - b6 0 1 illegal: Lossy FEN conversion
4QQ2/5p2/bPQ2R1b/1BB2Pp1/KBp1p2k/1B2P1R1/1R3N1r/1nb1qN1r w - g6 1 2 legal: proof: c4 a5 b4 h5 a4 b5 axb5 d5 cxd5 a4 g4 Nc6 gxh5 Na5 bxa5 Ra6 Nf3 Ra7 Ng1 Ra8 f4 e5 h4 Ke7 d4 Kf6 Kd2 c5 Kc3 e4 e3 a3 Kb3 a2 f5 Be7 h6 Ba6 h5 Kg5 h7 Ra7 d6 Qc7 d5 Qb8 b6 Qd8 d7 Ra8 h6 Nf6 d6 Qf8 d8R Qe8 d7 Bc8 a6 Bb7 a7 Ng4 Qc2 Qf8 Nh3+ Kh5 Bd2 Rg8 h8Q Rc8 a8B Kh4 h7 Ne5 Bb4 Kg3 Rh2 Qe8 Bb5 Nf3 Nd2 Qf8 Nf2 Bg5 Ka4 Ba6 Bd5 Bh6 Bb3 Ra8 Rg2+ Kh4 Nf1 Nd2 Rb1 a1B Rb2 Nb1 Rg3 Qd6 Rc8 Qd2 Rc6 Qe1 Rf6 c4 d8B Rc8 Bde7 Rgd8 Qg8 Rd1 h8Q Rcd8 Bbc5 R8d2 Qe8 Rc1 Qhf8 Rcd1 Ng4 Rh2 Nf2 Rc1 Qd3 Rd1 Qd5 Rc1 Ra2 Bb2 Qdc6 Rd1 Bed6 Bc1 Rc2 Rd2 Rb2 Rh1 Bb4 Re2 Bdc5 Rc2 Nd3 Rch2 Nf2 g5
5NrB/2n4N/2Q4Q/R2P1Ppr/4p2k/3n1pNp/1R1rP1bb/1QQKRB2 w - g6 0 1 illegal: Lossy FEN conversion
b2NQnn1/1p2Rp1k/1Q2rb2/3Q1Pp1/q1BBNP2/1P1p4/1KR2QqN/1R4r1 w - g6 0 1 illegal: Other
1B3BbB/1rR5/Qb3PK1/2N1pP2/1B1b2nr/B4N1p/kP2qQ2/3Bn1R1 w - e6 0 1 legal: proof: e4 d5 h4 b5 c4 f5 exf5 b4 cxd5 b3 axb3 Bd7 b4 Be6 b5 Bc8 f4 g5 hxg5 Na6 g4 Bh6 g6 Kd7 f6 Qe8 g5 Nb8 f5 Qf7 gxf7 Bf8 Kf2 Kd6 Kf3 Kc5 Kf4 Kb4 d4 c5 g6 a5 Kg5 h5 g7 a4 b6 h4 d6 h3 d7 c4 d8B c3 b7 c2 d5 Kb3 d6 a3 d7 a2 Nc3 Na6 b8B Rh4 Qd6 Bb7 Bdc7 Bg2 d8B Bd5 Be2 Rh7 Kg6 Nc5 Bh6 c1B Nf3 Nd3 Qa6 Be3 Rag1 a1Q Ne4 Qf1 Bd6 Bb6 Ba3 Ka2 Nc5 Ra7 Bd1 Rb7 Rh2 Bc4 Rc2 Qe2 Bdc7 Bd5 Bcf4 Bb3 Bd2 Ne1 Bdb4 Rh8 Na4 Bd5 Rc7 Bd4 Nc5 Bb3 Bhd2 Nh6 g8Q Ng4 Bh6 Be6 Bg7 Rh4 Bh8 Bh6 f8B Bhe3 Qg7 Bg8 Qh6 Bf2 Qf4 Bfe3 Na4 Bb6 Nc5 Bf2 Qg3 Bd4 Qf2 e5
1Q3K1Q/1pQ2p2/1R1B1b2/pP2r3/bRQQbrB1/Pq1Qp2N/2NPn2k/1n6 w - a6 0 1 illegal: No possible last move, all moves rejected
1BQ5/q1ppR1qk/r5Nb/1pP5/6nN/pQ1PQQ2/N2Pr1b1/Nn1KR2B w - b6 0 1 illegal: No possible last move, all moves rejected
3k3n/1qRNRK2/3PPp1N/1Nn1QPpP/q4b2/1rb2r2/2B1R2R/3qB2R w - g6 1 2 illegal: Lossy FEN conversion
r2B2Nq/2BNP2n/1q1R4/1bN3pP/3K2Nb/4Q2p/1PBP1rpR/2k3Nn w - g6 0 1 illegal: Lossy FEN conversion
4B2N/3B2Pk/nK2b2r/PPp5/qnBP3B/NN6/n1R2qR1/1q1rbR1Q w - c6 0 1 illegal: No possible last move
r1Qb2Nr/3R4/2Pnr2Q/Kp1RrpP1/Q3P3/1B5R/3PR3/N1B2bkq w - f6 0 1 illegal: Lossy FEN conversion
k1r5/pRr2q2/1R3pBr/B1NnpPQP/RN3R2/3QP3/P1bN2K1/nr2q3 w - e6 0 1 legal: proof: d4 h5 g4 c5 gxh5 g6 dxc5 Nc6 c4 Qb6 b4 Na5 c6 Rh7 c5 Qd8 c7 Nc6 Bd2 Rh8 Bc1 Nb8 c6 Bh6 Qd5 Be3 Qd1 Bc5 bxc5 Rh7 Ba3 Rh6 Bc1 Rh8 h4 d5 f4 b5 Kf2 d4 e3 f6 h6 b4 h7 b3 h5 b2 Bd3 g5 Bd2 g4 Rh4 g3+ Kg2 Bd7 c8R Bf5 c7 Kd7 Ne2 Kc6 Ba5 Kb7 Nc1 Na6 Nb3 Nb4 N1d2 Nh6 Rb1 Qf8 Rd8 Qf7 c8R Rb8 c6+ Ka8 c7 Nd5 Rd7 Bg6 Bc2 d3 Nc5 Nf5 Rcd8 Nd4 c8N Bf5 Rb7 Nb3 Rd6 Na1 Rdb6 Bg6 Qe2 Bf5 Rf1 b1R Qg4 Bg6 Qg5 Bf5 Na6 Rc1 Nd6 Rbc8 N6e4 Bg6 Bb1 R1c7 Nb4 Bf5 Nc5 Be4+ Kh3 g2 Rf2 g1R Bc2 Rhe8 h8Q Rb1 Qh7 Rh8 Qhg6 Bf5+ Kg2 Rh6 Ba4 Bg4 Be8 Bd1 Qe4 Bc2 f5 Rg6 Rff4 Rh6 Ndb3 d2 Qd3 d1Q Nd2 Qe6 Bg6 Qf7 Nc6 Qe1 Ra4 Rb4 Rf4 Rb1 Nb4 e5
k1N3Qr/2B4B/n2Pb1pQ/q1bPPp2/2r1bK2/2P1R3/nP1NQ2q/1R3N2 w - f6 0 1 illegal: Lossy FEN conversion
1brB3Q/3n1QQn/1P5P/1N2pPN1/2B1b2k/1p2P3/1Pqn1b2/R1NRq2K w - e6 0 2 illegal: Lossy FEN conversion
2Kqn3/1N1Q3p/1p3Prk/1n2pP1P/1PRBn3/bQr4B/3PN1QR/r2b2R1 w - e6 0 1 illegal: Lossy FEN conversion
B2k4/3b1Bp1/1PKQ2pb/2BPp1PR/R1Pr4/NnN2q1N/5rP1/2q3rB w - e6 0 1 illegal: Lossy FEN conversion
2Q4n/k4Bnb/3r1p2/1Pp2PPq/KbPn1Rpr/1NBr4/R4PPN/5NR1 w - c6 0 3 illegal: No possible last move, all moves rejected
r1b1kn1B/8/3n2Rb/rrBq3q/Nb3rb1/K1n1b1Q1/4r2N/BN2B1B1 w q - 0 1 illegal: No possible last move
2b1krRr/B1Q4q/1Q6/Q1b2BQn/3nn1r1/3N1Rpn/K2R2r1/3q1q1q w k - 0 1 illegal: No proof kernel
4k2r/Kb1b2Br/B2p2NN/q1bQ1nbr/5r1b/1P2n2R/3qb3/3N1RB1 w k - 0 1 illegal: No proof kernel
nn2k2r/N3rpn1/2nQ1p2/rR1p1b2/PQ5Q/1Q3Q2/Bq6/bqRKr3 w k - 0 1 illegal: No proof kernel
rrbnk3/r3P2r/Nb2rpp1/Q3BNqq/3R3P/2B2p2/3BK3/rnN5 w q - 0 1 illegal: No possible last move, all moves rejected
r2Nk1Bb/2r2rnQ/pp4PP/B2qnqb1/K2n1bR1/5bp1/1Q6/1R5B w q - 0 1 illegal: No proof kernel
1q2kNBr/R1Qq3r/pn1R2RB/b1qb4/4b3/Q1r2Qbn/3N3N/K6r w k - 0 1 legal: proof: d4 g5 f4 b5 h4 gxh4 e4 b4 d5 b3 d6 cxd6 e5 dxe5 Kd2 exf4 axb3 f3 b4 f2 b5 Bb7 Kd3 Ba6 Kd2 Bc8 Kc3 e5 g4 f5 b4 h5 Kb2 d5 c4 a6 c5 e4 c6 d4 g5 h3 c7 h2 b6 f4 b7 h4 g6 d3 b5 e3 b6 d2 g7 h3 Ka2 f3 Bb5+ Nd7 b8R f1Q b7 f2 Ne2 Ne7 g8Q Nd5 Bb2 Nf4 Nd4 e2 Nf3 e1B Bc4 Qg1 Bc1 f1R Qg3 Qc5 Rg1 h1R Bg8 Bd6 Nh2 Ra7 Ra8 Nb6 b8N Rf3 Nd7 Rc3 Qdf3 d1Q Nd2 Bb7 c8Q Be4 Qc7 Qb8 Nf8 Qa4+ Kb2 Qd7 Ra5 Bd5 Ka1 Rb7 Ra7 Be5 Nhf1 h2 Qh3 Bd6 Rg6 Be5 Qhg3 Nh3 Ra4 Bf4 Rd4 Be4 Rdd6 Bd5 Qh4 Bfg3 Qh7 Rg1 Qh6 h1B Nh2 Bg2 Qhf4 Rh1 Q3e3+ Bge4 Qff3 Rc2 Qa3 Rc4 Ndf1 Ba5 Bd2 Rc3 Bh6 Qdd8 Qc8 Rbh7 Qc7 Ng1 Nd2 Qd7 Qb2 Nh3+ Qc1 Bb1 Qa3 Bbe4+
r3k2B/4n3/pR2n3/2qN1N1b/1qr1K1NB/b1Q1b1Rn/nq1p2R1/4Q1Q1 w q - 0 1 legal: proof: d4 c5 a4 cxd4 g4 g5 e4 dxe3 f4 b5 axb5 gxf4 g5 h6 Be2 h5 Bg4 hxg4 Ke2 e5 Kd3 f5 h4 d5 c4 a6 b4 f3 g6 g3 c5 e2 b6 e1N+ Ke3 e4 h5 d4+ Kf4 d3 g7 f2 b7 f1Q+ Nf3 e3 c6 g2 c7 g1N b5 e2 h6 Ne7 g8N Nbc6 b8R Nc2 b6 e1B b7 Qg2 h7 Qd5 Nh2 Bf2 Qe1 Nd8 Nh6 Nb4 Ra3 Na2 Nc3 Qc5 Nd5 Ne6+ Ke5 f4 N2g4 f3 Ke4 Qh2 Bg5 Nh3 Bh4 Be3 Nf5 f2 Rg1 f1Q Rg2 d2 Rc3 Qfb5 Ra3 Rg8 h8B Qb2 Rc3 Qhd6 Rd3 Bd4 Rdg3 Be3 Qg1 Nd8 Qe1 Be6 c8Q Bf7 Qc7 Bh5 Qa5 Rg5 Qc3 Rg6 Rc8 Rh6 Rc6 Ne6 Rb6 Qcb4+ Qc4 Qdc5 b8Q+ Nd8 Qg1 Rc6 Qe5 Ne6 Qc3 Qcb5 Q4d4 Rc4 Qe1 Q5c5 Ke5 Qba5 Qf4 Qc7+ Rd6 Nc8 Qff1 Qa7 Rc6 Ba3 Qg1 Ne7 Rd6 Q7c5 Rb6 Bd4+ Ke4 Qab5 Nf2 Qb5b4 Ng4 Be3+
1B1qk2r/4nrr1/2n3p1/1R2Q2N/2KNQ1Q1/1nbp1p1B/2bN4/Qb1n1Rb1 w k - 0 1 illegal: No proof kernel
rr2k3/7p/1r1n2P1/RnR1pNQ1/B1N2r2/4B2b/rpKnQB2/1qb2rN1 w q - 0 1 illegal: No proof kernel
3Bk2r/2bR1b2/1n4pq/B3q1bB/1NR4p/n1bK2n1/2RQR1P1/1R1r2nb w k - 0 1 illegal: No proof kernel
rb1Bkrbq/q1r3q1/p2Br3/2NpBR1K/RQ2R3/n2P1B2/1R4q1/b5n1 w q - 0 1 illegal: No proof kernel
r3kq1B/N1b3p1/3p2pn/4qnq1/1NB5/r1P2bnQ/1q1P1RQK/Q1b2R2 w q - 0 1 illegal: No proof kernel
rB1nkn2/1P2r2B/1n2q3/1qn1bR1R/5B2/rpPbNB2/3N1Kr1/1qQ3b1 w q - 0 1 illegal: No possible last move
r2qk1B1/3q3Q/NPRPp1N1/b2K1p1Q/r2p2n1/2b1r2r/1N2b3/1rR3Q1 w q - 0 1 legal: proof: g4 c5 e4 g5 f4 Qb6 a4 Qd8 h4 gxh4 d4 Na6 d5 b5 g5 bxa4 Be3 d6 Bf2 Nc7 Bd4 cxd4 e5 Ne6 g6 Ng5 fxg5 dxe5 Qh5 e4 Qg4 Qd7 Qd1 Qd8 Ke2 h5 b4 f5 c4 a5 b5 a3 d6 h3 c5 a4 c6 h4 b6 e3 Kd3 e2 Kc4 e1B c7 h2 g7 h3 g6 a2 Qh5 a3 Nc3 Nf6 g8Q Ng4 Nd1 Bc3 Rc1 a1Q Qgh7 a2 Kd5 Ba6 c8N Bh6 Nf3 Bhd2 Na7 Be2 Nb5 Ba5 Rc4 Bdc3 Nh4 Qc1 Bg2 a1R Rc6 Ra4 Nb2 Qh6 Rd1 h1R Rc1 h2 g7+ Qg6 Be4 Re1 Bd3 h1R Bc4 Rh3 Ba2 Re3 Bb3 Rf8 g8Q Rf1 Qgg7 Rf7 Ba2 Qf6 Ng6 Qe6+ Kc5 Rf8 Bb3 Qec8 Bg8 Qcd7 Kd5 Rh1 Qe5 Rf6 Qeh2 Rh3 Qg1 Re6 Na3 Ree3 Nc2 Nf2 Nb4 Ng4 Qg3 Rd1 Qg1 Rf1 Na6 Re1 Rc2 Rb1 Rc1 e6+
r1B1k1r1/1n2Pr1b/N3NP2/r3bb1N/R3P3/2pq2B1/KB3p2/1B1rqn2 w q - 0 1 illegal: No proof kernel
4k2r/1R6/nKnn1Q2/2B1Bbn1/bQBn1Nbp/3rq2N/2R4b/R1N3Rn w k - 0 1 illegal: No proof kernel
rn1bkn2/q7/3pB3/5rq1/bbq1RN2/1Q1PQN1R/3B2Rr/2N1nKBr w q - 0 1 illegal: No proof kernel
rBK1k2B/1n3R1n/p2Q2qP/N3q1Q1/b3Qqb1/pB1rb2n/4N1Q1/1b2R3 w q - 0 1 illegal: No proof kernel
rbbrkBNr/QRRRb3/8/5b1r/K2R1Rb1/n3P3/bn2B3/3R1N1b w q - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Kf2 g4 Ke1 Qg5 hxg5 fxg3 Kd2 f5 b4 a5 c4 h5 Kc2 d5 Kb3 g2 b6 d3 b5 g3 g6 d2 g7 d4 c5 d3 b7 h4 b6 f4 c6 a4+ Kc4 a3 Kb5 a2 e3 f3 c7 f2 Rh3 Be7 Qe1 d1B Nd2 Nc6 b8R Nh6 b7 Ne5 Ne2 g1B Rb1 a1R Nc3 g2 Nde4 d2 Ne2 Nhg4 Ba3 Bc2 N2g3 d1B Be2 f1B Qa5 Nd3 Qa7 Nge5 Bb4 Nb2 g8R+ Bf8 Rh2 h3 Rg4 Be7 Rf4 Nec4 Rh1 h2 Bd6 Bf6 Bf8 Ra5+ Kb4 Bh4 Ra1 Rah5 Ra4 Bg5 Kb5 Na3+ Ka5 Bd3 Rd4 Bf2 Kb4 g1R Rd7 Bh3 Nf1 Bd8 Rd4 Bcg4 c8R Bg3 Rc7 Bb3 Rcd7 Bg8 Rc8 Ba2 b8R Ba6 Rcc4 Bc8 Rbb7 Be7+ Rc5 Rg2 Ka5 Bf5 Rcc7 Bhg4 Rg1 Nd1 Ka4 h1B Ng5 Rf2 Nf7 Bh2 Nh6 Bg3 Bf3 Rd2 Ng8 Bh2 Be2 Rd3 Rfe4 Bd6 Rf4 Rd2 Rc5 Bb8 Rcc7 Nb2+ Ka5 Rh3 R7d5 Bd8 Nh2 Nb5 Ra4 Bc4 Rd1 Na3 Nf1 Ba2 Rae4+ Be7 Rd6 Nbc4+ Ka4 Rd5 Red4 R3h5 Rdb6 Rd8 Rbd6 R8h6 R6d5 Rh8 Rdd7 Nb2+
r3kNQr/2Q2N1R/Q6N/4p3/p1bqB3/1P1nRrn1/1K1Pnb1n/4rB2 w q - 0 1 illegal: No possible last move
b2bk2r/1n1nq3/6bR/2Bp1R2/rPNN2B1/n1Q2n2/nP2pBQ1/3b1BK1 w k - 0 1 illegal: No proof kernel
r3k3/2p1NNn1/1Pnq3b/R1Rq1ppN/2P2r1N/1Q1n2Nn/b1Kp2Q1/6B1 w q - 0 1 illegal: No proof kernel
r2Nk2n/1nQpB3/PP2r3/b1nKn2N/p4Q2/n1N2NN1/1p1qN3/N7 w q - 0 1 illegal: No proof kernel
1q1qk2r/2B1p3/1b1nN3/p1RP1P1N/bnqP1B2/2q3rp/2R1QK2/2N3nB w k - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Bd3 f5 Bf1 fxe4 f4 c5 g4 h5 b4 e3 f5 c4 g5 e2 d3 h3 g6 c3 g7 h4 b5 c2 b6 a3 b7 a2 Bf4 c1Q Bd2 h2 Nf3 h3 Rg1 h1Q Ng5 Nc6 b8B Nf6 g8N Ne4 Rg3 Qc4 Rg2 Qh2 Bdf4 Nb4 Nd2 Bd7 Ne6 Nd6 Nb3 Ba4 Nc1 Bg7 Kf2 e1N Bc7 Nf3 Qe2 Ng1 d4 Be5 Rb1 a1Q Rb3 a5 Rc3 Rb8 Rc2 Qca2 Rc5 Qc4 Ng5 Qac3 Ne6 Qh1 Rh2 Qe4 Bg2 Qb1 Bf3 Nd3+ Ke3 Nc8 Bb6 Qe1 Bh1 Bc7 Rf2 Qeb4 Qf3 Nd6 Rc2 Q1b2 Qe2 Q4a3 Ba7 Rb3 Bb6 Rc3 Nh6 Qbb5 Ng4 Nb4+ Kf2 Rg3 Rc3 Bb8 Bc7 Ba7 Rc2 Qac3 Nh2 Rg4 Nf1 Qbb8 Ng3 Bb6 Nh5 Rg3
r1b1kn1R/pR1b3N/Pb1Bprn1/B2N1p2/P1Q1rR2/1K1pP3/8/3R2rn w q - 1 2 legal: proof: b4 g5 g4 c5 a4 Qa5 d4 cxd4 bxa5 h6 f4 gxf4 g5 h5 Bh3 Rh6 Be6 Rh8 Bg4 hxg4 Kd2 d5 c4 b5 Kc2 f5 h4 b4 g6 e6 c5 f3 g7 d3+ Kb3 d2 h5 d4 a6 d3 e3 g3 c6 f2 c7 f1R h6 g2 h7 Rf4 Qg4 d1N Nf3 g1R Rh4 Re4 Nc3 Bc5 Nd5 Nd7 Ng5 Bb6 Ba3 Nf2 Rd1 Ne7 g8R+ Nf8 Rg7 Rg8 h8B Neg6 Nh7 Nh1 Rf7 Bd7 Bc3 Rg7 Bd2 Bc8 Rd7 Rf7 Rh6 Rf6 Rh4 Re5 Qc4 Re4 Rg7 Bd7 Rg8 Bc8 Rh8 Bd7 Rf4 Bc8 Kb2 b3 Ba5 Bd7 Kc3 b2 Bd6 b1B Kb4 Ba2 c8R+ Bd8 Rc5 Bb6 Rc7 Bc8 Rb7 Bb3 Qd4 Bc4 Ka3 Bb5 Kb3 Bc6 Qc4 B6d7
3rk1Nr/1n2p1BR/7q/1NN1n2R/n1q1r2n/2q3NN/b2PPPK1/Q1q3b1 w k - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 axb5 dxc4 h4 gxh4 g5 f6 Bh3 f5 Bg4 fxg4 Kf1 a5 b4 h5 b6 c5 b5 h3 b7 a4 b6 g3 g6 g2+ Ke1 h2 g7 c3 Qb3 h4 Qd5 c4 Qd4 c2 Qf4 a3 Qf6 c3 Qc6+ Nd7 b8N h3 b7 a2 Qa6 Ne5 Nf3 g1N Kf1 Qa5 Nh4 Ngf3 Qa7 Nh6 g8N Bg7 Nf5 Nh4 Ba3 Nhf7 Bb2 Nd8 Na6 Be6 b8N Nb7 Ne3 c1Q+ Nd1 c2 Nc5 Qc3 Nba6 Rd8 Nd3 Qc4 Rg1 h1R Nf4 h2 Nc3 Bf7 Rb1 a1N Nb5 Nb3 Nh3 N3c5 Bd4 Qb2 Ne3 Qbc3 Nf5 Na4 Nc5 Bf6 Rd1 c1Q Ng3 Bg5 Qa6 Bf4 Qa7 Ng4 Bg7 Ne5 Ke1 Bd5 Rf1 Rg1 Qa5 Rg2 Rh1 Bf7 Kf1 Be6 Nf5 Rg4 Ng3 Bd5 Qb4 Bf7 Qa3 Be6 Qa1 Bf7 Rg1 h1Q Re1 Qc6 Rh1 Qh6 Rd1 Bg5 Kg1 Re4 Rh2 Bf4 Kh1 Nf5 Kg2 Be6 Rdh1 Bf7 Ng1 Be6 Rh5 Nh4+ Kh2 Bf7 Nh3 Qf6 Rg5 Nhf3+ Kg2 Q4d4 Ng1 Ba2 Rh7 Qdc4 Nf5 Qh6 Nh3 Bh2 Ng3 Bg1 Rh5 Nh4+
rQBrk2n/1Nbb1pb1/1Rp4p/1N6/NRrPP3/4nq1q/KBP3qP/r7 w q - 0 1 illegal: No proof kernel
rN2k1nK/2pnb1R1/2P1q3/8/3n1pnr/2rpB1RP/1B1PQPpQ/1nN4b w q - 0 3 illegal: No proof kernel
BB1nk1rr/3R2Q1/8/Rb1B1N1K/bq2Br2/1P1p2r1/2NQ4/Bqb1N2n w k - 0 1 illegal: No possible last move
4kN1r/QRR1r2P/3Q4/B2b1Q2/3QN1Bb/1np3n1/1K2rbq1/B2r1nQb w k - 0 1 illegal: No possible last move
rbq1kN2/Bb3r1B/1Qr1N3/pn1pn3/R3PB1B/2pQ1b2/6RK/1Q2Rq2 w q - 0 1 illegal: No proof kernel
r3k3/BQ6/2N4n/BB1R3n/N4Prq/1rNNBrR1/Q1q2bn1/Kbr2q2 w q - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 h5 g4 c5 gxh5 cxd4 Kd2 d5 b4 a5 h4 g5 c4 e5 Kc2 g4 Kb2 d3 f4 e3 h6 d4 c5 e4 c6 a4 h7 d2 h5 g3 b6 d3 c7 e2 b5 e1Q h6 e3 b7 e2 b6 g2 Nh3 g1Q Nc3 Qef2 Ra3 e1N Qf3 d1R+ Ka1 d2 Bb5+ Nd7 b8B Ng2 b7 Qgf1 Ba7 Qdh4 b8N Bc5 Nc6 Ndf6 Qe2+ Be6 c8N Nh5 Nb6 Be3 Qc4 Bf5 Qa2 Bb1 Rh2 Q2e2 Nf2 Qc4 Nd3 Bf2 Rb3 a3 Nba4 Re1 Rh1 d1R Bce3 Rc1 Rh3 Re2 Rg3 Rb2 Rb4 Qb3 Rd4 Qc2 Rd5 Rb4 Beb6 Rb3 Ba5 Ngf6 Be3 Rg8 h8B Ng4 h7 Nh6 Bhd4 Rg5 Ba7 Rg4 Qb2 a2 h8Q+ Ng8 Qd4 Nh6 Qc4 Re1 Bec5 Re3 Qb4 Rf3 Be3 Qf6 Qe4+ Qe7 Qh7 Qh4 Qb7 Qd2 Ne4 Rc3 Qb3 Rc1 Nec3 Qdd1 Kb2 a1R Qc4 Ra3 Qa2 Rb3+ Ka1 Qc2
r1B1k2n/Qnr2r1q/KB2B3/2RR2nR/1p2N2p/2NR3P/1PbR1nb1/4q1b1 w q - 0 1 illegal: No proof kernel
rBb1k1KN/r1P4R/nN4R1/p1B1q1q1/b7/RB5q/1R3P1Q/b2qnN2 w q - 0 1 legal: proof: d4 b5 h4 f5 g4 g5 hxg5 c5 e4 fxe4 a4 cxd4 axb5 h5 gxh5 Bh6 Nh3 Bg7 Ng1 Bf8 Kd2 e5 c4 d5 b4 a5 c5 d3 Ke3 d2 g6 Rh7 h6 Qc7 b6 Ne7 c6 Qd7 b7 Rf7 c7 Qc6 b5 Be6 b6 Qd7 h7 Nec6 h8N Nd4 g7 Na6 g8R Rf6 b8B Nf3 b7 Ne1 Rg6 Bg7 Qh5 d1B Nd2 Ba4 Qh2 Qc8 Ngf3 d4+ Ke2 d3+ Ke3 Bg4 Nc4 d2 Ba3 d1Q Nfd2 Qd8 Bd6 Bc8 Bc5 Rd6 Ra3 Qg5+ Qf4 Rc6 Rh7 Qdh5 Nb6 Qh3+ Nf3 Bf6 Bc4 Rd6 Bb3 Re6 Ke2 e3 Qh2 e4 Nd2 Ba1 Nf1 Rd6 Ba7 Re6 b8R Rd6 Rb7 Rc6 Bb8 Rf6 Kd1 Re6 Kc1 e2+ Kb1 e3 Kc1 Nf3 Kc2 e1Q Kd3 e2 Kc4 Qb1 Rd7 e1Q Rh7 Qgg3 Kd5 Qc3 Nc4 Ne1 Rb5 Rb6 Rb4 Rb7 Nb6 Qg5+ Kd6 Qhf3 Rb5 Rba7 Rb4 Bb7 Ke6 Qh3+ Rg4 Bf3 Bc2 Qg2 Rb4 Qd1 Rb2 Bb7 Bb3 Qcg3 Rf7 Bc8+ Rd7 Q5d5+ Kf6 Qge4 Kg7 Qdg5 Kg8 Qee5 Rh7 Qh3
r3k3/q5n1/1p5p/QrnB1P1N/R2B1bRP/1B2bN2/bp2K2R/1nNb1R2 w q - 0 1 illegal: No proof kernel
1N2k1Nr/qp2n1q1/2R1K3/2p1PR2/R6p/bNB3p1/BBPQ2p1/Bn2r1b1 w k - 0 1 illegal: No proof kernel
1r2k2r/b7/nPn1B2P/1bR1q3/4R1Qp/3Qqr1B/RNpR3n/1QQ3K1 w k - 0 1 illegal: No proof kernel
rN2k2n/n2Rb1Q1/P1pB4/8/pBRKQ1Pr/B1Q1pq2/PNq1n1b1/2b5 w q - 0 1 illegal: No proof kernel
2N1k2r/1B1nb2Q/R1P1b3/2n3n1/1R2Nr2/KN2BB1r/2qbPPNp/2n2r2 w k - 0 1 illegal: No proof kernel
4k2r/2B2p1p/R2nB3/2Q1rrN1/1K2P1np/Rb1P1q2/Nb1p1P2/3R1BbB w k - 0 1 legal: proof: b4 a5 bxa5 d5 Na3 d4 Nb1 d3 cxd3 Bd7 Nh3 Be6 Ng1 Bc8 h4 g5 Nh3 gxh4 Ng1 e5 Qb3 e4 Kd1 e3 Kc2 exd2 Kb2 Ra6 Qd1 Ra7 Kc2 Ra8 Kc3 b5 a4 c5 g4 c4 g5 Ba3 a6 Bf8 g6 Bh3 a5 Qd6 g7 Nc6 a7 Nd8 a6 Qd5 Nf3 Bd6 Bb2 Bh2 Ra3 Bg1 Qc2 Nb7 Kb4 c3 Ng5 Nd6 e3 Rb8 a8B Nf6 a7 Qf3 Bd5 Be6 a8B Ng4 Qc1 c2 Be5 Rb7 Nc3 Re7 Bb3 Bc4 Na2 Bd5 Bf4 Re5 Bb7 Be6 B3d5 Rf5 Bc8 Re5 Bdb7 Bb3 Be6 Qd1 Bbg2 Qf3 e4 Rf5 Be3 Re5 Bb6 Rf5 Bc7 Re5 Qd1 c1B Qc2 Bb2 Qc5 Bc4 Ka5 b4 Ka4 b3 Kb4 Bd4 Qa5 b2 Qc5 Bh2 Rg1 Bb3 Bh1 b1R Bh3 Ra1 Rd1 Rf5 Bf1 Bf6 Bb8 Bg1 Bc7 Be7 g8R+ Bf8 Rg6 Bg7 Qa7 Rc1 Rh6 Rcc5 Qa5 Rcd5 Qc5 Rde5 Bc8 Nb7 Rha6 Nd6 Be6 Rd5 Rb6 Bb2 Rba6 Rde5
2N1k2r/1nPqB2Q/1Ppr1nRq/1b2P2p/1Q2R1N1/3K4/B1n2pQb/1n3Q2 w k - 0 1 illegal: No possible last move
1BK1k2r/3RNR1b/1bp1b2p/q3PR2/nP3P2/P2Qbp2/3NBr2/3n2Rq w k - 0 1 illegal: No proof kernel
r3k3/n1rp2R1/1b1BPP1Q/N2P3q/p1b1nq1r/1Q1P1N1p/5R2/Rn1K3N w q - 0 1 illegal: No proof kernel
r1r1k2n/R1B1BNp1/4K3/Nb4qp/N1Q3R1/2n3Rn/4Bb1Q/2b2QBB w q - 0 1 illegal: No proof kernel
2b1k2r/7R/NBRp1q2/NQ3q2/Qn1P1nBb/1N3np1/Q1K1p3/2bR2QQ w k - 0 1 illegal: No proof kernel
2K1k2r/rP6/Q1bbb1pB/Nq3N1R/1N6/1R1qB1n1/3p1NN1/1B1Nnb1R w k - 0 1 illegal: No proof kernel
r3k3/2p2r2/3R1nQ1/Nbb1NRB1/3R1B2/rn2p1qN/2R1PpKn/B2B2Q1 w q - 0 1 illegal: No proof kernel
1B2k2r/q7/PQPRn1nN/2rQNr2/1bNrbQ1R/1Q1n4/4Qn2/2BK4 w k - 0 1 illegal: No proof kernel
1q2k2r/1r2b2b/K3PR2/1PB1Nn2/BRbN2q1/Q1BR1rn1/3b3b/4Q1RR w k - 0 1 illegal: No proof kernel
rRr1k1B1/q1b1P2n/QrNKN3/2B4b/4r3/R3b1R1/NPb2b2/3BN1nR w q - 0 1 illegal: No proof kernel
r3k3/1Q4P1/N1Nnq1Np/1r1n1N1n/1B4Kb/3R1Pp1/2bBB2p/1BQ3qR w q - 0 1 illegal: Other
Qn2k2r/2R1q2B/P6p/2Krr3/b1N3N1/QbP3q1/QQ2R1R1/1Rn2b1N w k - 0 1 illegal: No possible last move, all moves rejected
r3kr1q/R5KN/1n6/1Rnn2p1/NB1Q1qPR/2P1B3/1nQ2B1P/b1bB3n w q - 0 1 illegal: No possible last move
2n1k2r/Bb1N4/2Prp2Q/p1Q2B1n/2q1N3/N1r1P2n/P3B2p/QbKR3N w k - 0 2 legal: proof: d4 c5 dxc5 b5 c4 g5 b4 g4 c6 g3 c5 Nh6 Nd2 Bg7 Rb1 Ng8 fxg3 Nh6 g4 Ng8 g5 Bf8 g4 e6 h4 Bb7 g6 Qe7 h5 Bg7 h6 Bf8 g5 Bg7 hxg7 Qd8 Rb2 Ba6 Rc2 Bc8 Rc4 bxc4 b5 h5 c7 f5 b6 a5 b7 d5 Nh3 d4 Nf2 h4 Nb1 h3 Kd2 f4 Na3 Nf6 g8N h2 g7 d3 g6 Nc6 b8N f3 Nd7 Bb7 c8Q Nh5 e3 Rb8 Bb2 c3+ Kc1 c2 Be2 Ne7 Bd4 Nf4 Re1 Nh3 Nh1 f2 Qc7 f1N c6 Ng1 Qf4 Ng3 Qh6 Nc8 Ba7 Qh4 Rf1 Qc4 Qe1 Nd6 Qb4 Nc8 Qc5 Nh5 Rd1 Qg4 Ne7 Qb4 g8B Qc4 g7 Nh3 Nd5 Ra8 Bh7 d2+ Kb2 c1R Bf5 Rb8 Nc3 Ra8 Ne4 Rc3 Nf8 Rb8 g8Q Ra8 Qg1 Rb8 Rf1 d1B Nd7 Bc2 Ra1 Ne7 Rc1 Rd8 Rd1 Nc8 Kc1 Qd3 Nb6 Rd6 Nd7 Qc4 Qgg7 Rcd3 Qb2 Rc3 Qa1 Bb1+
r1r1kN2/1rrN1rQ1/6Q1/1P2Bnb1/pB3B2/1P4B1/RpbP2P1/2R3qK w q - 0 1 illegal: No proof kernel
r1N1knQN/8/1BrqP2r/PnQ1RPP1/br5b/1B1N4/5N1R/3nKb1r w q - 0 1 illegal: No proof kernel
2rBk2r/2n4n/BQ1pB1pN/PbPp4/1Q2bR2/KBp5/3Pb1Pp/NR6 w k - 0 2 illegal: No proof kernel
N3k2r/1p1nPpQq/BPR2qQ1/7b/Rr1B1P1b/1QP2pb1/4QK2/R1r5 w k - 0 1 illegal: No possible last move, all moves rejected
r3k1B1/Nnp1p3/2b5/4n1QR/2BqRpbN/qNPB1N2/1BPB1rN1/2K5 w q - 0 1 illegal: No proof kernel
1b2kB1r/1P5B/B1nQ4/Q1qR4/n2Pb2n/1PNRq2p/rb2KRN1/R6N w k - 0 1 illegal: No proof kernel
4k1Br/3pP2n/3Rb2B/2P1bRq1/2rNPQ1b/K1N1Q2b/1B2N2B/2nN1b2 w k - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Be7 c4 Bd6 c5 Bf8 Kd2 h5 Kc3 f5 Kb4 a5+ Ka3 h4 c4 h3 g4 a4 b4 f4 e4 f3 g6 f2 b6 h2 b5 Qh4 b7 Qh5 g5 Qe2 e6 Qf3+ Qd3 Qf4 e7 Ra5 g7 Nf6 g8Q Nc6 b8B Qh4 b6 Qh7 b7 Nd5 g6 Nd8 g7 Nc7 c6 Nce6 c7 Rh5 c5 Rg5 Bb2 Qh5 Qe3 Nc6 Nc3 Rd5 Bc4 f1B Rd1 Qg5 Nge2 Nb4 Rg1 Bh3 Rgf1 h1B Rf5 Rd4 Ba2 Rc4 Rd6 Bg4 Nd1 Bg2 Qh7 B2h3 g8N Nd3 Qh4 Nc1 Nh6 Bg7 Bb3 Bf3 Qhf4 Bfg4 Ba2 Nf8 Bb3 Rc2 Bg8 Be5 Ndc3 Bh5 Ng4 Nh7 Nf2 B5g4 Nfd1 Bf6 Ba7 Be5 b8B Ba6 c8N Bc4 Bc7 Bf1 Bab6 Bgh3 Ba5 Be6 Na7 Bf6 Nc6 Be5 Kb4 a3 Ncd4 a2 Ka3 a1B Na4 Qf6 Bd2 Rc4 Nac3 Qh6 Be1 Bf6 Bh4 Be5 Bg5 Qf6 Bh6 Qg5 Qh4 Bg3 Qhf4 Bh4 Qh2 Nf8 Nc2 Bg4 Rd2 Bf3 Nb5 Na2 Bc1 Be5 Nbc3 Bf6 Bb2 Nh7 Bg3 Bg4 Rd6 Bg7 Ncd4 Bgh3 Qhf2 Bf6 Qff4 Nc1 Bh2 Be5
rbB1k3/1P5q/NP1RPn1N/1brbP2N/1B2bQ1Q/R2p2B1/1b1K1n2/7Q w q - 0 1 illegal: No proof kernel
rrb1k1bR/2pq2Q1/BN2Pq1N/2P1RPQ1/q3B2n/4p3/1RP1P2n/2b1K1B1 w q - 0 1 illegal: No proof kernel
rB2k2N/2QqpR2/B6p/3N2pP/Qbn5/qK3Pnn/R2rN1b1/3NN3 w q g6 0 1 illegal: Lossy FEN conversion
r2bk2r/2Bppq1p/2R5/BPn1r1Q1/1Nn2Q1N/P1b1P2r/5RbK/2r3R1 w kq - 0 1 illegal: No proof kernel
5q2/1P2kp2/p1b5/1B2nrq1/P1n2pp1/2bBQQ1Q/qq1r2B1/RrN1K3 w Q - 0 1 legal: proof: f4 e5 g4 exf4 c4 b5 h4 bxc4 h5 g5 b3 d5 Rh3 d4 Rc3 dxc3 Ba3 h6 Be7 Bf5 Na3 Bc8 Nc2 Bf5 Ne3 Bd7 Ng2 Be6 Nh4 gxh4 g5 Bh3 g6 Bc8 Bg5 hxg5 d4 c5 e4 c2 a4 c1Q h6 h3 h7 g4 g7 a6 e5 h2 b4 h1Q e6 c3 e7 c4 d5 c2 b5 c3 d6 Qd5 b6 Nc6 b7 Bd7 Bb5 Qa2 Bd3 Nf6 Be4 Na5 Bg6 Qcb2 Be4 c1Q Bg6 c2 Bd3 Bc6 Ne2 Nc4 Be4 Qe5 Bg2 Qcb2 Qd2 Nd7 Qe3 Qf5 Nc1 Nde5 Qf3 Rg8 h8Q Qg5 Qhh3 Rh8 g8B Bg7 Qe3 Rh5 Bh7 Kd7 Qhf3 Qf8 Bd3 Rd8 e8B+ Ke6 d7 Ke7 Bg6 Rh6 Bd3 Rf6 Qh3 Rf5 Bdf1 Bf3 Nb3 Be4 Be2 Ng6 Bef1 Rd5 Qef3 Rd2 Bd3 c1R+ Qd1 Rb1 Nc1 Rc8 Qdf3 Bc3 d8Q+ Ke6 Qf2 Rc5 Qdd4 Rf5 Qde3 Ke7 Bb5 Nge5 Qff3 Bc6
N5Q1/pqrBQ2b/n1qp3q/4r1B1/4R1q1/kn1rbN1B/5NRb/3nK2R w K - 0 1 illegal: No proof kernel
2nNRN2/q1b1n1k1/1pb1b1r1/2BP1B1R/1rrb4/3Qb1B1/2R4n/4KbqR w K - 0 1 illegal: No proof kernel
1rnb1q1Q/P7/2N1k3/5bQ1/Bn6/3pBR1R/4nqrq/RbbNK1nB w Q - 0 1 illegal: No possible last move, all moves rejected
1r1b2RR/2k2qr1/1q1b2B1/NnB2Q1n/2r1Pr2/r1N2b2/1qrp2Q1/R2QK3 w Q - 0 1 illegal: No possible last move, all moves rejected
1R2q3/1q1p1r2/b1Pnnk1q/6nb/N2b2b1/1r1bB2B/3N1n1N/R1Q1KR1Q w Q - 0 1 illegal: No proof kernel
3N3Q/1p1QN3/1p1n2q1/BRpp2Qp/1bkr2n1/Q4Br1/1rbPp3/R2rK3 w Q - 0 1 illegal: No possible last move, all moves rejected
2Rb1N2/1b3nk1/N1p3B1/1rb1q3/N1P1n3/1b2ppR1/q2Q1R1n/2q1K1NR w K - 0 1 legal: proof: f4 b5 g4 h5 c4 hxg4 b4 a5 f5 axb4 f6 Nxf6 Na3 d5 Nh3 d4 Ng1 Ne4 Nb1 Ra3 Bb2 Rd3 exd3 Nf2 Bc3 dxc3 h4 f5 a4 Kf7 d4 e5 a5 g5 d5 g3 d4 g4 d6 c2 d7 c1Q a6 e4 a7 g2 a8R f4 h5 b3 d5 b4 d6 b2 h6 b3 h7 g3 R8a2 c6 Ra7 Qg5 d8R+ Be7 d7 Bb7 Nc3 b1Q Ra8 b2 R8a3 Kg7 Nh3 g1B Rf8 g2 d8N Nd7 Rf6 Ne5 Rf5 Nf7 Bd3 Qbc2 Ra8 b1B Na4 Ba2 Rc8 Re8 h8N Qf6 Rd5 Bb3 Ng6 Qd6 Rb1 Qa2 Rg5 Bf6 Rg3 Re5 Bc2 Rb5 Rb2 Qe5 Bd3 f3 Nf8+ Ng4 Rd2 Bc5 Rf2 e3 Bg6 g1N Nde6+ Kh8 Nd8 Nh2 Nde6 Ne2 Ng1 Nc3 Nc7 Ne4 Na6 Bg5 Nb4 Kg7 Na6 Qca1 Qc1 Bd8 Qd1 Q1b2 Qd2 Qc1+
1Bnrnk2/N6Q/5qB1/b6p/1p1r1N2/bbn1qbBN/2B1pQ1P/3bK2R w K - 0 1 illegal: No proof kernel
1N4q1/r1p1b3/2B3br/4n1k1/rppp4/NPB1P3/3QN1r1/RnrRK1bR w K - 0 1 illegal: No proof kernel
q2kq1n1/1P1N1b1b/n1Rn3n/2p3rp/QR1P1Q1b/3p2N1/r7/Bn2KB1R w K - 0 1 illegal: No proof kernel
1bb1r3/1pkrB2Q/4pNn1/5N1n/qn4NN/3B4/nNr3Br/1qR1K1QR w K - 0 1 illegal: No proof kernel
2N1r2N/B1rqR1r1/q2bQ3/8/3QnbNB/B1n1nr2/2B1P1b1/Rb1nK2k w Q - 0 1 illegal: No proof kernel
3BQ1q1/Nb3BN1/6br/Rr1pq1Nn/8/1QpPb1Nr/1bB4q/R1q1K1k1 w Q - 0 1 illegal: No possible last move, all moves rejected
1Nq1b1qk/b1BpQ2n/p3B3/1Q1Q2R1/2pqrPr1/N1p5/q3n3/1NN1K2R w K - 0 1 illegal: No proof kernel
1b2q3/8/pnrQ3Q/1B1Rp1bB/1qp1PR1n/2B1kp2/bB4pN/Rb2K1N1 w Q - 0 1 illegal: No proof kernel
1qn3B1/2b1N1bQ/P2p2qr/2B1n1Np/1R1r4/P2q2n1/2BN4/Rqk1K1Q1 w Q - 0 1 legal: proof: c4 a5 b4 d6 d4 e6 d5 exd5 bxa5 dxc4 g4 f5 h3 fxg4 Be3 g3 Bd2 Ne7 Bc1 Ng8 Bh6 g5 Nf3 g4 Ng1 g2 Bf4 g3 Bc1 Bg4 hxg4 Ra7 Bh6 Ra6 Bc1 Ra8 e4 Kf7 f4 Ke6 a3 h5 f5+ Ke5 g5 b5 g6 c5 f6 c3 f7 c2 g7 b4 Bd2 Kd4 e5 c1N e6 b3 e7 c4 e8N c3 Nh3 g1B Nf4 c2 Ne2+ Kd3 Nec3+ Ne2 Rh2 c1Q Rg2 b2 Nd5 Bb6 Nec7 Nd7 Rh2 g2 Ne6 g1Q Ng5 Rh6 Rh4 Ne5 Ne7 Qc2 Rb4 Bc7 a6 Qb8 Qc1 Qg4 Bh3 Ng3 Be3 Qe4 Bc8 Qg6 Nd2 b1Q Bc5 Kc3 Qd1 Qcd3 Bf5 Ra7 Be4 Rb7 Bf5 Rb5 Be4 Ra5 Bf5 Ra4 Be4 Nf6 g8B Bg7 f8Q Nd5 Qf2 Nb6 Qg1 Nc8 Bf5 Qd5 Bc2 Qdd3 Rb2 Rd4 Rb4 Qb2 Qe2 Qb3 Qe4 Kb2 Bb1 Kc1 Bc2+ Qb1 Qf5 Qf7 Qh7 Qfg6
2R1QQNq/4n1Nn/2n3Rb/p1bR3r/Prnq1B1b/1P2B3/1k2br2/R3K3 w Q - 0 1 illegal: No proof kernel
q1n1Qq2/b3p1Rr/1B6/P1p1PN2/3Q2R1/rbBbpk2/1R4p1/Rb2K1nN w Q - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 c4 h5 e5 hxg4 Bg2 d5 Be4 fxe4 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 f4 Kd7 h4 g5 d4 b5 a4 b3 d6 Ke6 d5+ Kf5 d7 b2 h5 g3 h6 g4 h7 b4 d6 b3 Qf3 g2 Nd2 b1B Bb2 g3 Qf1 Kg4 f5 Nc6 f6 Na7 f7 Bh6 f8R Bd3 Ngf3 g1Q Rf7 g2 Nh4 Qf8 d8R Nf6 d7 Nh5 Nf5 Nf4 Bc3 b2 Rg7+ Bg5 Rh6 b1B Rb6 Ne2 Rb2 Qd4 Qg1 Qd5 Nf1 Kf3 Qb6 Be3 N1g3 Ng1 Nh1 Bb7 Rg4 Nc8 Qd4 Qdg8 Re8 Bd5 d8B Bb3 Rg7 c6 Bb6 Ra6 Qd5 Bc5 Qd4 e3 Rd8 Ra7 Rd6 Qd5 Rdg6 Ra5 Rg4 Qe4 Bc7 Ba7 Bd8 c5 Bb6 Rg8 h8Q Qa8 Qh5 Rh8 Qf7 Rh7 Qe8 Rb5 a5 Rb4 Nhg3 Ra4 Nh1 Ra3
1n1bRNqq/qPRp4/2PB1q1Q/rr6/b2qBN2/1k6/1npP4/2nNK2R w K - 0 1 illegal: No proof kernel
b3Q1Nq/r2n1rn1/3NBP2/R1q1qp1p/4QBb1/R2P3p/5P1p/R2rK1k1 w Q - 0 1 illegal: Other
B3rn1r/4p1p1/qR1BP1p1/1n1b2P1/2Nb1N2/1kpp1P1N/1rq5/1N1QKq1R w K - 0 1 illegal: Other
1b5r/1r1bPpB1/P7/4qp1k/2R1RP1p/1N4b1/BRrnnQ2/2RnKr1R w K - 0 1 illegal: No possible last move, all moves rejected
kb5N/2pP2P1/1R2qp2/2nnbqr1/B1P1B2r/Q1q2r1r/n2N1P2/R3KR2 w Q - 0 1 illegal: No proof kernel
B2b3q/Q1n1BN1Q/1nn1qNR1/5bQ1/1r1Bb1B1/1k1B2b1/1q1r4/RN2K2r w Q - 0 1 illegal: No possible last move
kn1R4/2nn1Q2/1Rb5/np3pRr/2N2b2/1Q1BB1Nb/1Q2n1QN/R3K1n1 w Q - 0 1 legal: proof: c4 b5 b4 a5 f4 axb4 g4 d5 g5 dxc4 h4 e5 fxe5 f5 Bb2 Qf6 gxf6 g5 Bc1 g4 Ba3 Ra6 Bb2 Rd6 Bc1 Rd7 Ba3 Rg7 Bc1 Rg5 hxg5 Bb7 Nc3 Ba6 Nb1 Bc8 e4 Kd8 a4 c5 d4 Kc7 d5 Kb7 e6 h5 a5 h4 e7 h3 e8Q g3 d6 h2 g6 g2 f7 b3 d7 c3 d8R c2 g7 c4 a6+ Ka8 a7 b2 e5 c3 e6 Nh6 g8R Ng4 e7 Bd7 Rg5 Nf6 Ne2 g1N Na3 b1N Nc4 Bh6 f8Q Bc6 Be3 c1N Qb3 c2 Qff7 Nd7 Ng3 Nc3 Bd3 Nc1e2 Qb2 c1N Qeg8 Rh7 e8N Nd5 Nf6 Nb3 Ng4 Rh8 Qff8 Nc7 Qff7 Nh3 Rg1 h1B Nh2 Na5 Rg6 Bcg2 Rb6 Bc6 Qb3 Bhf3 Qgg7 Bf4 Qgb2 Rh7 Nh5 Bfe4 Rg5 Bg2 Ng3 Rh5 Bd2 Bcf3 Rbg6 Kb7 Nd6+ Kb6 a8Q Nhg1 Re6 Bh3 Be3+ Nc5 Qad5 Ka7 Nc4 Be4 Rb6 Ncd7 Qc6 Bh1 Qf3 B1g2 Qf1 Bc6 Qg2 Ka8
q2n1q2/N3p1b1/1nb1BnRr/r4qNN/3R1p1q/5QQR/5R2/BkB1K2R w K - 0 1 illegal: No proof kernel
2QB1Q2/R2q4/bBBq4/QnQn4/3NN1b1/1p2B2k/q3b1r1/Rnb1K1Rr w Q - 0 1 illegal: No proof kernel
5B2/3nQ1n1/1PbbQB2/2b2rbn/1R1n2N1/2Q1qBk1/N4R2/RrbRKb2 w Q - 0 1 illegal: No proof kernel
2rqRN2/4B1pR/2Ppb3/q3b2n/1b1N1r2/N1Q2rN1/2Q4n/RB1qK1kB w Q - 0 1 illegal: No proof kernel
2R1n3/1BQ2prq/1RN3NB/NB1Q2r1/n5B1/n1n4b/2P1pbbr/R3K2k w Q - 0 1 illegal: No proof kernel
1r2k1r1/1QPr3Q/q7/NBp1Pn1r/2pnb3/B5bb/r4NQ1/1R1QK1RR w K - 0 1 illegal: No proof kernel
2nb1Q2/1Q1q1q1B/b2rn2R/3N3r/1PpB1RN1/r3P2r/1Bp1n3/R3KB1k w Q - 0 1 illegal: No proof kernel
1qNQ4/3rn3/k3bb2/Bb2p1n1/2bqPpRb/BQ1R1P2/2N3Rn/1R2K2R w K - 1 2 illegal: No possible last move
1nr3Q1/n1N1bPNB/1N1rp1bp/5R2/RPQ1N3/1b1rp2k/3r3N/4K2R w K - 0 1 legal: proof: e4 b5 h4 d5 g4 f5 b3 g5 Ba3 b4 Bb2 c5 a3 c4 axb4 c3 b5 cxb2 gxf5 dxe4 Ra2 g4 Ra1 Qb6 Na3 Qf6 Nb1 Qg5 hxg5 Bd7 Qc1 Be6 Qd1 Bc8 c4 Kd7 f4 a5 d4 h6 g6 g3 c5 e3 f6 Ke6 b4 Kf5 d5 g2 c6 a4 g7 a3 f7 a2 c7 Be6 c8N Ra4 b6 Ra6 d6 Ra5 b7 Ra3 d7 Ra8 d8N Ra6 Nd2 b1B Ne4 Ra3 Qc1 Kg4 f5 Ra8 f6 Ra3 Nb6 Rd3 Nf3 g1R Qc4 Rg2 Nh2+ Kh3 Be2 Rd6 Bd3 Rd2 Bc2 Bd5 Ne6 Rd3 Nc7 e6 Ne8 Ne7 g8Q Rd2 Ng7 Nc8 Bd3 Be7 f8R Na7 Bc2 Nbc6 b8N Rd3 Na6 Nb8 Nc7 Rd2 Qc3 Bb3 Qc4 R6d3 Nc3 Rd6 Bh7 Bg6 Ne4 R6d3 Rc1 a1R f7 Na6 Ra8 Nb8 Rd1 Ra3 Ra1 Ra5 Ra4 Rad5 Ra5 Rd6 Rf5 Nac6 Ra4 Na7 Qc8 Re8 Qd8 Bf8 Qg5 Rc8 Qd8 Be7 Qh8 Rg2 Qg8 Rgd2
k1r4Q/1q2rPP1/2B2brR/P5q1/2N1N1bq/1n1nN1q1/3BbQ1p/R1B1K3 w Q - 0 1 illegal: No proof kernel
1B4q1/1B1r2p1/1b2Bb1k/3bb3/3BPq1N/rPP1QN1B/3n1R2/nq1rK2R w K - 0 1 illegal: No possible last move, all moves rejected
b1b4n/2p2RBN/BN1kp2q/1br5/pN3P2/2P2b1N/1b2P1n1/2Q1KbBR w K - 1 2 illegal: No proof kernel
n3B3/1rr2P1n/R4p2/1q2P3/Pn1RN2B/2B1nk1n/B1n3Nq/RN2K3 w Q - 0 1 legal: proof: e4 a5 c4 d5 cxd5 g5 b4 axb4 h4 f6 hxg5 Qd7 e5 Qd8 e6 Bd7 f4 Bg7 Qg4 Bb5 Bb2 Be2 Qh4 Bh5 Be2 Bf7 exf7+ Kd7 Qf2 e5 Qc5 e4 Bc4 e3 Be5 e2 Bb2 Bf8 Bc1 Bd6 Qb6 Be5 fxe5 Ra7 Qe3 Ra6 Qb3 Ra8 Qd1 exd1N Bb5+ Ke7 Bf1 Kd7 d4 h5 a4 c5 g4 b5 d6 Ke6 g6 Kd5 g7 Ke4 d7 h4 d5 h3 g5 h2 d6 b3 g6 c4 Bb2 b4 Ne2 c3 Nf4 c2 Bb5 c1N Nd5 Ne3 Ba6 Na2 Na3 Ne7 g8B Kf3 g7 Ng6 Nf4 Ra7 Bc3 b2 Bh7 b1N g8R b3 Ng2 b2 Bb5 Rb7 Re8 Qa5 d8N Nd7 Re6 Nb6 d7 Na8 Ra6 Nb4 Ne6 Rc8 d8B Nf8 Be8 Qb5 Bb6 Rcc7 Nc5 Nd2 Rg1 b1N Ne4 h1Q Bf5 Qh2 Be6 Nh7 Ba2 Nec4 Bf2 Ne3 Nc5 Ne4 Bh4 Neg5 Ne4 Nh3 Rh1 Nd2 Nb1 Ndc4 Rf1+ Kg4 Rf2 Na3 Rd2 Kf3 Rd4 Nac2+
n4r2/Rqp1p3/2r1P3/3P1Q2/Bnkrp1nB/5NN1/RP3B1P/R1r1Kbb1 w Q - 0 1 illegal: No proof kernel
2qQBr2/2N1r2r/P1B3R1/1B2P1n1/Pn1p4/kbB1Q2n/3Pb3/2r1K1bR w K - 0 1 legal: proof: g4 a5 f4 f5 b4 e5 bxa5 h5 gxh5 c6 fxe5 Qc7 c3 Qb6 Na3 Qd8 Nb5 cxb5 Qb3 b4 Qc4 Nh6 Qd4 Ng8 Qg4 fxg4 e4 Ke7 h4 g5 a4 d5 c4 b5 a6 b3 c5 b4 h6 b2 e6 b1B h7 g3 h5 g2 h6 b3 c6 Kd6 e5+ Kc5 c7 Kb4 e7 g4 e8B b2 Be2 g3 Bf1 Bc2 Ra2 b1R Ne2 g1N Nd4 g2 Ra3 Bg4 c8B Bb3 Nf5 Bc5 Be6 Nc6 B6d7 Nh3 Ne3 Nf6 Bb5 Bgd1 Bb2 Ne4 Ba1 Rc1 Bd4 Rf8 h8Q Neg5 h7 Ra7 Qg7 Qb8 h8Q Qc8 Qgh6 Rc7 Q8f6 Bb6 Qd8 g1R+ Bf1 Rg4 Bb5 Rgf4 Bb2 R4f7 Ba1 Rh7 Bb2 Kc5 Bc3 Nb4 Bdc6 Rce7 Nc2 Ba7 Nd4 Nf7 Qe3 Nfg5 Bcd7 Bb6 Bbc6 Kc4 Nb5 Bc5 Nc7 Bd4 Qg3 Bg1 Qf3 d4 Qe3 Bbc2 Rb3 Bd3 Rb2 B3e2 Rc2 Kb3 Bb5 Bc4 Bdc6 Ka3 Rb2 Na2 Rb4 Bcb3 Rc4 Nb4 Rc5 Rh4 Rd5 Rh6 Rd6 Rhh7 Rg6 Be2+
3nn3/PkPrr1r1/1qR3P1/7P/Q3B1rP/4q2Q/q2BN1Nb/1r2KbrR w K - 0 1 illegal: No proof kernel
1n3R2/1Rr1Qb1k/1pRn4/bR5q/1QB1r3/N2RN2p/1QB2B2/Rq1bK1b1 w Q - 0 1 illegal: No proof kernel
BBk3b1/Q1pR1qBb/N3bQ2/2B3N1/r2br2p/n4N1q/1B2R3/R2NK2n w Q - 0 1 illegal: No proof kernel
Br2b1R1/1n1Rbkr1/8/q1prQ3/1BRr1N2/NN2n2N/R1b2Q2/R1n1K1B1 w Q - 0 1 illegal: No proof kernel
R5rn/R2B2r1/1k3q2/2b1n3/2QPRn2/5p1N/2NN1pqN/QNbBK2R w K - 0 1 illegal: No possible last move, all moves rejected
2RB1QNQ/8/N1rp2B1/n2kBq2/3p3B/r1QNn1P1/4nq1p/3QKb1R w K - 0 1 legal: proof: d4 b5 f4 f5 a4 e5 axb5 c5 fxe5 g5 Nc3 f4 Nb1 g4 g3 Bd6 gxf4 g3 f5 g2 Bf4 cxd4 Bh6 Be7 Bc1 Bg5 Ra2 Bf4 Ra1 Bg3+ hxg3 Ke7 Bh6 Kf7 Bc1 Ke8 b4 Ke7 c4 a5 e4 h5 f6+ Ke6 c5 a4 b6 a3 c6 a2 f7 h4 f8Q h3 b7 h2 b5 Ra6 b6 Ra4 c7 Qe8 Na3 Rh3 Nc2 Rb4 Bd3 Rh5 Ne2 g1N Bg5 Ra4 Nb4 Qf7 Rc1 a1Q Na6 Ra5 Bh4 Nc6 b8B Rh7 b7 Nd8 Ba7 Qf3 b8B Nf7 Bb6 Bb7 c8Q Ngh6 Bbd8 Ba8 Qc3 Nf5 Qh8 N7d6 Nf4+ Kf7 Bc2 Ra3 Nd3 Rh6 Bb1 Ne3 e6+ Kg6 e5 Kf5 e7 Ke4 e8N Ndc4 e6 Qf5 e7 Ne2 Rc2 Kd5 Be5 Rc6 Qf8 d6 Nf6+ Ke6 Qh8 Qb2 Ng8 Kd5 e8Q Na5 Qf8 Qb7 Rb2 Qbf7 Rb8 Bb7 Nac5 Ba6 Rc8 Bb5 Na6 Ng1 Nc1 Bf1 Bc2 Ne2 Bd3 Qf4 Bg6 Q7f5 Nd3 Qf2+
BN4bn/1P1R4/1kN2PR1/8/3qQBrP/br4rN/n3nRpb/B2qK2R w K - 0 1 illegal: No proof kernel
1N3b2/2P4R/2RbR3/P1qbB2N/p1R2rq1/1rpB4/QP4kn/R1R1Kbn1 w Q - 0 1 illegal: No proof kernel
1k1n2N1/pN4Bq/5Qb1/BP1N4/brPq2Br/3p1R1q/P6q/Rn2K1RB w Q - 0 1 illegal: No proof kernel
8/rq6/2QQPB1q/1q2BprN/k2PRb2/q2BRb2/1B1nPn1N/R3K1b1 w Q - 0 1 legal: proof: f4 a5 b4 axb4 c4 h5 g4 d5 cxd5 e5 gxh5 Rh7 fxe5 Rh8 h4 Kd7 d4 g5 a4 b5 d6 Kc6 h6 f5 d7 g4 h5 b3 a5 b2 a6 b4 e6 Kb5 a7 c5 h7 b3 h6 g3 Bd2 g2 Be3 c4 Rh2 c3 Nd2 b1Q Bg5 c2 Nh3 c1Q Nf3 g1B Bg2 b2 Nf4 Na6 Rh4 Qf6 d8Q Nb4 Nh5 Bb7 Nh2 Bd6 Be4 Bf4 Qd6 Qe3 Rg4 Qa3 Qc1 Ka4 Bd3 Bf3 Rh4 Qg7 Be7 Nf6 Rg4 Bg5 Re4 Rhg8 h8B Bf4 h7 Qh6 Bf8 Rg2 Bhg7 Rg5 h8B Qba2 Qcc5 Qc4 Qcc6+ Qb5 Be7 Ng4 Bef6 Na2 Bf8 Nf2 Be5 Nc1 Bhf6 b1Q B8e7 Rc8 Bf8 Rc7 a8R+ Ra7 B8e7 Rg2 Rg8 Qb2 Rg3 Nb3 Rh3 Rg5 Rg3 Bh1 Rge3 Nd2 Qdd7 Qaa2 Ba3 Bf3 Qdd6 Qb4 Bb2 Qaa3 Qc4 Qb7 Qcc6+ Q4b5
bBB1NQq1/2N3p1/1qB1bpn1/1P3pP1/pb1B4/1kN5/N1rr2RP/R3K3 w Q - 0 1 illegal: No proof kernel
1r2Nr1q/Q4q2/b2Pqn1Q/1pP2k2/1P2p3/R1b1P3/1nRBB2B/1rq1KN1R w K - 0 1 illegal: No proof kernel
3qr1bq/N1k2n2/1Rq2PNQ/1Bp3P1/pN6/P3R3/2Q2P1P/Rqb1K1nr w Q - 0 1 illegal: No proof kernel
3n1BQ1/n1R2b2/Nq4r1/2Qn3r/1N1R2QB/r4BR1/2Q1B2k/RrN1K2q w Q - 0 1 legal: proof: c4 a5 h4 g5 g4 f5 gxf5 e5 b4 d5 bxa5 g4 cxd5 Qd6 d4 Be7 dxe5 Bg5 hxg5 Qd8 e4 Kf7 a4 c5 f4 h5 d6 b5 g6+ Kg7 f6+ Kh6 a6 b4 e6 h4 e7 Kh5 e8R b3 g7 c4 a5 h3 f7 Kh4 f8Q Kg3 a7 c3 a6 h2 e5 c2 f5 b2 d7 Rh7 e6 Qg5 d8R Bb7 f6 Qd5 e7 Nh6 g8Q Qd7 f7 Qc8 Nc3 b1Q Nd5 Qb6 Bg5 c1N Nb4 Qce6+ Be2 Qec6 Rd4 Na2 Qc2 Nc3 Rc8 Nd5 e8Q Kg2 Qe5 g3 Qfc5 Rg7 f8B Nf7 Rc7 Nd8 Bh4 Qh6 Qcf5 Nbc6 Qee6 Rb8 a8B Rg6 Qd7 Na7 Qfc2 Bc6 Qc8 Be8 Qg4 Bf7 Bb7 Rf6 Ba8 Rf3 Bb7 Ra3 Ba8 Nb5 a7 Qh7 Bc6 Qe4 a8N Na7 Nf3 Qh7 Nd2 Rb7 Rf1 h1R Rg1+ Kh2 Nb3 g2 Nc1 Qh6 Rc8 Qh8 Nc7 Qh7 Nca6 Qh6 Rf1 g1R Rc7 Rgg3 Rg1 Qh7 Qf3 Rg6 Qg4 Nc3 Bf2 Qa5 Qf4+ Kh3 Nd5 Rb1 Ndb4 Qb6 Bcf3 Nd5 Qfe4 Rh2 Qf4 Rhg2 Qfe4 R2g5 Bg3 Qh4 Bf2 Rh5 Qg4+ Kh2 Rg2+ Kh1 Bg3 Qh2 Bh4 Qh3 Rg3+ Qg2 Bd1 Kh2 Bde2 Qh1+
8/1kbB3N/pr1n2pN/1Q2pq2/R2N2QR/B2q3Q/b1P3N1/RQ1RKnr1 w Q - 0 1 illegal: No proof kernel
5n2/p3k1np/P2n1p1N/Ppr2P2/b2N1n1r/q2n3R/1BR2rP1/2b1KB1R w K b6 0 2 illegal: Lossy FEN conversion
2B2B1k/1n1pq1R1/b2B2pr/p1p1NpP1/4rQ1N/n1R1QPn1/P1N4Q/4K2R w K f6 0 1 illegal: No possible last move, all moves rejected
2n1q3/1Br1N2Q/1p1b4/2k1B2n/2N1bNb1/1b1rbB2/2qB1bB1/R3KbRR w KQ - 0 1 illegal: No possible last move, all moves rejected
2Qb2b1/5k2/3bN2r/Bn1R2nb/P2b2P1/1R1Qp2Q/B1P1n3/R1rbK2R w KQ - 0 1 illegal: No proof kernel
2n1rb2/pK6/5Q1Q/2br1q2/1krQ4/P3nb1b/3P1Q1b/rRr1R1r1 b - - 0 1 illegal: No possible last move
1r2r2N/2bB4/kN1pq1R1/2RQBb1Q/3b1K2/3r1br1/2N3q1/2nb1q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Nd2 d5 Nb1 d4 c4 gxh4 e4 b5 a3 bxa3 e5 bxc4 e6 d6 Kf2 Ke7 Ke1 Nd7 exd7 Qc7 Nc3 Qb6 Nb1 Qd8 Kf2 f5 Kf3 h5 g4 d3 g5 h3 g6 h4 g7 d2 Nc3 a2 Qa4 d1B+ Be2 h2 Nb5 c3 Qb3 h3 Qb2 c2 Rb1 a1B Qa3 Nh6 g8Q Nf7 Qa7 Bd4 Na3 Rb8 Ra1 Qe8 Nb1 Kd8 Ra5 Be7 Bb2 c1R Qa8 Kc7 d8N Kb6 Nb7 Bd8 Qg3 Bc7 Qg5 Qe6 Qe7 Re8 Nc5 Rc3+ Nd3 Bd7 Qe4 Ra3 Rd5 Ka6 Nd2 Rc3 Rc5 Rcb3 Qe3 Ne5+ Kf2 f3 Kg3 f2 Nc4 f1B Qe4 Bg2 Bg4 Bgf3 Nf4 Nd3 Nge2 Nc1 Qd5 Rd3 Rg1 h1R Qh4 h2 Qh5 Bc8 Rg2 Rg1 Ng6 h1Q Kf4 Qh3 Rg3 Qg2 Nh8 Bd7 Nb6 Bc8 Kg5 f4 Bh3 Bg4 Bc3 f3 Kf4 f2 Ba1 Bf3 Rg6 f1Q Bc3 Qg8 Bd7 Qe6 Bb2 Rh1 Ba1 Rh3 Bc3 Rg3 Ba1 Bb2 Nd4 Bc3 Nc2 Bd4 Bb2 Qg8 Ba4 Bf5 Bd7 Qe6 Ba1 Bf2 Bg7 Bd4 Be5
1N4B1/2Qp1K1k/1B1q1br1/5n2/1p1QR2r/b3n1rQ/nq1N3r/1b2R2r b - - 0 1 legal: proof: f4 c5 d4 cxd4 h4 g5 b4 gxh4 a4 e5 c3 exf4 b5 d3 b6 axb6 e3 b5 Be2 bxa4 Bg4 a3 Be6 Nc6 Bb3 Nb8 Bc2 dxc2 Ke2 f5 Kd3 Kf7 Kc4 Kg7 Kd5 b5 g4 h5 c4 a2 g5 f3 g6 f2 c5 f1N c6 h3 e4 h4 e5 f4 e6 f3 e7 h2 e8Q f2 c7 h3 Ba3 c1Q Qh5 Qf6 Qee2 Nh6 Qf5 Ra6 Qec2 Qd6+ Ke4 Ne3 Qg4 f1R Qc4 Bb7+ Qc6 Rf3 c8Q Qb2 Nd2 Rg3 Bc5 Nhf5 Ne2 Rh4 Rhe1 h1R Qc7 h2 Qd5 Nc6 Bb6 Nb4 Nd4 Kh8 g7+ Kh7 Rab1 a1B Nc6 Na2 Qd4 Be7 Rbd1 b4 Rc1 Bf6 Rc5 Ba8 Re5 Bb7 Kf4 Ba8 Nb8 Be4 Ba7 Bb1 Bc5 Rc6 Bb6 Rc2 Ke4 Rhg1 Re6 h1R Re8 Rh6 Qh3 Rg6 Re7 R1g3 Re8 Qc1 Re7 Bb2 Re6 Ba3 Re8 Qc6+ Kf4 Qb2 Re4 Be7 Ke5 Rh4 Nb3 Rch2 Nd2 Nh6 Ba5 Qa6 Bb6 Bf6+ Kd6 Be5+ Ke7 Nhf5+ Kf7 Bf6 Ba5 Qc6 Bb6 Qd6 g8B+
brqb2N1/p2nNBN1/2N1r2R/1b1R2p1/pQk2p1n/5q2/nK3B2/1b6 b - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 f4 exf4 g4 h5 a5 hxg4 a6 bxa6 Nc3 a5 Qd2 Bxb4 Nb1 Bf8 Qb4 a4 Qb7 Na6 Qb8 Nxb8 Kd1 Ke7 e4 Kd6 h4 Kc5 c4 f5 Kc2 g5 e5 d5 h5 d3+ Kc3 d2 e6 d1Q h6 f3 h7 f2 e7 f4 e8N d4+ Kb2 d3 Bd2 g3 Nc7 g2 Bc3 d2 Ne8 Nd7 Ne2 g1N Nd4 Ne2 Ng7 Bb7 Rh6 Be7 Nc6 Nc1 Bh3 f1B Be6 Qf3 Bf7 d1B Nd2 Na2 Ne4+ Kb6 c5+ Kb5 Rb1 Bc2 Bd4 Rb8 Nf6 Ba8 Rd1 Qc8 Bf2 Bd8 Rd5 Ne7 Ng8 Bcd3 Nf6 Re8 h8Q Bfe2 Qf8 Nf5 Ng8 Nh4 Qe7 Bb1 Qe4 Re6 Qb4+ Ka6 Ne5 Qb7 c6 Bc4 c7 Qc6 c8N Qb7 Nce7 Qc8 Rd1 Bf1 Qb3 Ka5 Rd5+ Bb5 Qe3 Kb4 N5c6+ Kc4 Qd2 Ne5 Qe1 Nd7 Qb4+
2k2qr1/Q1qbqRQ1/2p2N2/2rbQ1b1/2r1n3/1B3pB1/1r3R2/Rn2K3 b - - 0 1 legal: proof: b4 a5 h4 axb4 a4 bxa3 f4 e5 c4 exf4 c5 g5 c6 gxh4 Nc3 dxc6 Na4 c5 Nxc5 b5 Nd7 Bg7 Nf8 Bxf8 e4 Kd7 d4 f5 g4 h5 g5 h3 g6 h2 g7 a2 d5 b4 e5 b3 d6 f3 Kd2 c6 Bb2 h4 Ke1 f4 Be2 h3 Kf1 f2 Qd5 Na6 Qc5 Qc7 Re1 a1R Bc3 b2 Qd4 b1R Ba5 Rh4 Bb5 Be7 Bd3 Nb4 Bc2 Na2 Bb3 Rb2 Nf3 Rc1 Qa7 Nc3 Ng5 Nf6 g8Q Nb1 Nh7 Rc5 Qg7 Ne4 e6+ Kd8 d7 Bg5 Rg1 h1Q Re2 h2 Nf6 Qf3 Rc2 h1B Be1 Qg2+ Ke2 f1Q+ Kd1 Qh2 Rf2 Qb7 e7+ Kc7 d8R Bd7 Rh8 Rg8 Rh6 Kc8 Rh7 Qc7 e8Q+ Qd8 Qh5 Qe7 Qe2 Na3 Qg6 Rh3 Ng4 Ng3 Rfg2 Qf2 Rf1 Rh4 Rgg1 Bd5 Qh6 Qfg2 Rh1 Qf8 Rf7 f3 Nf6 Rhc4 Qg7 Qgg1 Qe4 Qe3 Qd4 Qee8 Rhg1 Ne4 Rg2 Qb8 Qe5 Qee7 Bg3 Qc7 Rc2 Kd8 Rc1 Kc8 Ra1 Nb1 Ke1 Ra4 Rf2 Rd4 Rc2 Rdc4 Rf2
1b3b1Q/Qq3B1r/2nR1Qb1/1NKb4/1p2B3/p2b3b/R1Bk1r2/nb5n b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 b4 e5 c4 exf4 h4 gxh4 Kd2 a5 Ba3 axb4 Nc3 bxa3 Ke1 dxc3 Kf2 Ke7 g4 Ke6 e4 Ke5 g5 h5 a5 f5 a6 b5 a7 d5 g6 c2 c5 c1B g7 h3 c6 b4 c7 d4 Ra2 f3 Bc4 Kf4 e5 h2 e6 h4 e7 d3 e8B d2 Qb3 d1B Be6 h3 Qd5 Nc6 Qd3 Rh7 B6d7 Nge7 g8B Nd5 Rd2 Qe7 Ra2 Ne3 Qf1 Bc2 Rb2 Bb1 Qa6 Nc2 Qe2 Na1 Kf1 f2 Qa6 Ke3 Bef7 f4 Bf5 Bb7 Bc2 Kd2 Ne2 Rd8 Rg1 h1N a8Q h2 Kg2 f1B+ Kf3 Bh3 c8Q Qc7 Ke4 f3 Qe6 f2 Rg6 f1B Q6a7 Bc8 Nc3 Qb7 Qd6+ Bd3+ Kd5 Bcf5 Kc5 Be4 Rh6 Bg6 Nb5 Re8 Q8b8 Re2 Ra2 Rf2 Bd5 Bb2 Be4 Be5 Bf7 Bg3 Qe7 Be5 Qd8 Bb8 Qc8 Ng3 Qd8 h1B Qd4 B1g2 Qh8 Nh1 Qd6 Be6 Qe7 Bd5 Qd6 Bh3 Qe7 Bh5 Rd6 Bg6 Qef6
3Nk2K/4b2p/n3Qn2/r1np1b1r/2r1BqB1/N7/1nNQp1n1/1rQ4R b - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 h4 cxd4 e4 g5 e5 gxh4 e6 b3 Ra2 fxe6 Qf3 e5 Bh6 e4 Ra1 Nxh6 Ra3 b2 Qd1 Ng8 Rf3 Bh6 Rf8+ Bxf8 Kd2 b5 g4 e5 f4 d3 Ke3 h3 c4 b4 a5 b3 a6 h2 f5 d2 g5 d6 a7 Nf6 g6 Qc7 c5 Rg8 g7 Be7 c6 Na6 Na3 b1N Ne2 b2 Bh3 Nc3 Bg4 b1R Nd4 Na4 Ndc2 N4c5 Qc1 Rf8 g8Q d5 Qe6 Qd6 c7 Bd7 c8B d1N+ Ke2 e3 Kf3 e2 Kg3 e1N Kh4 e4 Kg5 e3 Kh6 e2 Kg7 Nfe4 f6 Nb2 Qd2 Rf7+ Kh8 Ng2 Qc1 Rg7 Qd2 Qf4 f7+ Kf8 Bf5 Nf6 Be4 Rg3 Qc1 Rc3 Qd2 Rc4 Qc1 Rb8 a8Q Rb5 Qb8 Ra5 Qb4 Nd1 Qbd2 Nb2 Qc6 Bf5 Bd7 Bg6 Bg4 Bf5 Qe6 Bd8 Rf1 h1R Rg1 Rh5 Rh1 Qh2 Qc8 Ke7 f8N Qf4 Ne6 Kf7 Qc6 Be7 Nd8+ Kf8 Qc8 Ke8 Qe6
2k2qbn/Q2r4/N3R1rN/NQ1qrN2/2R2q2/n2qr3/4rBn1/2b2n1K b - - 0 1 legal: proof: h4 a5 f4 c5 d4 cxd4 a4 e5 b4 exf4 e3 axb4 a5 g5 a6 gxh4 Bb2 Rxa6 Bb5 b3 Ba4 Rxa4 Bc1 Ra8 Kf1 h5 g4 d5 Kg2 Kd7 c4 b5 g5 f5 e4 d3 c5 f3+ Kh2 d4 e5 b4 g6 f2 g7 f1N+ Kg2 f4 Ra6 b2 Nc3 b1R Qe2 b3 Ra3 f3+ Kh3 d2 Ra1 d1N Bh6 f2 Kg2 d3 Bf4 b2 Nd5 h3+ Kf3 h4 Bh2 d2 Ra5 Na6 Ne7 Nh6 g8N Nde3 Bg3 d1R Ra3 h2 Nf5 h3 Bh4 Ng2 Bg5 Nc7 Nfe7 Ra5 Bh4 Nf7 Nd5 Nb5 Nde7 Rh6 Rc3 Nh8 Nc6 Na3 Rc4 Rg6 e6+ Kc7 e7 Bh6 Qd3 Be6 e8N+ Kc8 Ne2 Bc1 Nh6 Bg8 Nc7 Qf8+ Qf5+ Rd7 Ned4 Ra1 Na6 b1Q Rg1 Rb5 Na5 h1Q c6 h2 c7 Re5 Qf7 Ra2 Ndf5 Rae2 Qg7 Nfe3 Re1 f1Q+ Bf2 Qd3 Qf7 Qhg1 Qd5 h1R Qb5 Rh4 Rg4 Qh1 Rc4 Rgd6 Kg3 Rhe4 Kf3 Qh5+ Kg3 Qhf7 Kh3 Rg6 Kh2 Ra2 Re2 Qfd1 Re1 Nf1+ Kh1 Q1f3 Re2 Qfd5 Re3 Qf4 Re2 Re8 Re3 R4e7 Re6 Re2 Rd6 R7e3 Rb6 R8e5 Re6 Rd8 Rec6 Kd7 c8Q+ Ke8 Qcb7 Rd7 Qa7 Kd8 Nc7 Kc8 Re6 Qdf3 Na6+ Qc6 Ra4 Qcd5 Rc4+
nBK1b3/6q1/n1N2p2/1b3krQ/1r1Bqb2/1Qn2p1N/2B1r3/qqR3B1 b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 f5 a4 c5 g4 h5 d4 cxd4 Qf3 hxg4 Qf2 Kf7 Qh4 Ke6 Ra2 Kf7 Qf6+ Ke8 Ra3 fxe4 Rf3 exf3 f5 Rh3 Qe5 Rh6 f6 Rh8 Qf4 Kf7 Qg5 Ke6 f7 Kd6 Qf6+ exf6 Nh3 Ke6 Ng1 Ke7 Kd2 Ke6 Kd3 d5 c4 b5 h4 g5 a5 g3 a6 g4 h5 b3 h6 g2 h7 b4 c5 b2 a7 b3 c6 g3 c7 Ba6+ Kd2 d3 Ke3 d4+ Kf4 d2 c8Q+ Qd7 Qd8 d1N Qb6+ Bd6+ Ke4 d3 f8B d2 Bh6 Bb5 Be2 Ne7 Bf4 Re8 h8B Nc8 Nh3 g1R Bd3 g2 Na3 b1Q Nc4 b2 Bc2 Qg7 Ne5 Na6 Nc6 Rb8 a8Q Nc3+ Kd4 d1B Bce3 Bde2 Qaa7 Bed3 Qf7+ Kf5 Qc5+ Re5 Qb3 Nb6 Bh2 Re1 Bhg1 Na8 Bef2 Qa1 Bg3 Qg6 Bg7 b1Q Bh6 Re2 Bhe3 Bc7 Qcd5 Ba4 Qf7 Reb5 B3h2 Bf4 Qe8 Qh7 Qef7 Rg8 Qh5+ Rg5 Bg3 Nb8 Bef2 Rb4+ Kc5 Qg7 Bd4 Qe1 Ne5 Na6+ Kd6 Be8 B3h2 Qeb1 Bg3 Qg6 Ke7 Qh7+ Kd8 Qb7 B3h2 Qe4 Kc8 Bc4 Nc6 Bb5 Bge3 g1Q Bf2 Qg4 Bfg1 Be3 Bb8 Bf4 Bh2 Qg3 Rc1 Qg1 Bde5 Qa7 Bd4 Qg7 Bhg1
1N1bBqb1/7n/4bq1r/r1B1qq2/1r4N1/Q4b1b/1Qb3NB/2QknK2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 h5 b4 hxg4 a4 e5 f4 exf4 Nc3 a5 Nb1 axb4 Kd2 b3 Ra3 Bxa3 Rh2 b2 Rh3 Bc5 Ra3 Bxa3 Ke1 Bf8 c4 Ke7 e4 Kf6 c5 Ke5 h5 d5 h6 f5 c6 b5 h7 g5 a5 f3 c7 f4 a6 f2+ Ke2 b4 a7 b3 Nc3 b1R Na4 d3+ Kd2 Kd4 e5 g3 e6 b2 e7 f3 e8N g4 Nc5 g2 Ne4 g3 Ng7 Na6 Qa4+ Nb4 Qa2 Be6 c8Q Be7 Qb8 Nc2 Qb5 Qf8 Qaa6 Nf6 Qba5 Bd8 Nc3 Ne1 Be2 f1Q Qb7 f2 Nh3 g1Q Qbc7 g2 Na4 Qh2 Qg3 g1Q Qf3 Qg5+ Kd1 d2 Qg2 Ke3 Ne8 d4 Nb6 Qhe5 Nd7 Qgf5 Bh5 Qa6 Qa1 f1B Qh1 Qc6 Nf4 Bh3 Ng2+ Kd3 Ne3 Kc3 Ke2 Bg8 Bf3 d1B+ Kf2 d3 Nb8 d2 Ng2 Kc2 Kf1 Be6 Qh2 Qcc3 Qf4 Qc6 Bh5 Bf3 Qh6 d1B Bf4 Qcd6 Bh2 Bfd5+ Qf4 B1f3 Qc4+ Kd1 Qc8 Ne4 Nf6 Ng5 Ng4 Q8f6 Qb7 Qdf8 Be8 Bg8 Qb4 Bde6 Qaa3 Rc1 Qb6 b1B Qbb2 Rc4 Qc5 Bc2 Qc8 Bgf7 Qc6 Rb4 Qc5 Rg8 h8B Rg6 Bg7 Nh7 Qc4 Qg8 Bf8 Rh6 Bc5 Qgg7 Qcc3 Bg8 Qca3 Qgf8 Qaa1+ Kd2 Qac1+ Kd3 Qcb1 Kd2 Na6 Rab8 a8Q R8b6 Nb8 R6b5 Qaa3 Ra5 Kg1 Ke2 Q1a1 Kd2 Qac1+ Ke2 Qce3+ Kd1 Kf1 Qh5 Qf4 Qhf5 Qfc1#
1QB1k3/2qq3N/n2Nbq2/2b4r/1rp1QB2/b2Q2b1/N1p5/qnN1bK2 b - - 0 1 legal: proof: g4 a5 a4 b5 c4 h5 b4 hxg4 h4 axb4 f4 d5 f5 dxc4 f6 b3 Rh3 b4 Ra2 bxa2 Ra3 bxa3 Nf3 exf6 Ng1 f5 Qc2 f4 Qb3 Nd7 Qd1 Nb8 a5 c3 d4 a1B e4 g5 h5 c5 a6 f5 e5 c2 e6 f3 d5 f2+ Ke2 g3 h6 a2 d6 f4 d7+ Ke7 h7 f3+ Kd3 g2 a7 c4+ Ke3 g4 Bd3 f1Q Nh3 g1B+ Kd2 f2 Ng5 g3 Bg6 g2 Qg4 Bc3+ Ke3 a1Q Qe4 Qd1 Bf7 Be1 Nc3 Qc7 Na2 Bh2 Bg6 f1Q Bf5 Bhg3 Bd2 Kd6 e7 Nf6 d8Q+ Bd7 Bc1 Qd5 Qd3 Ne4 e8N+ Kc6 Bg4 Qff6 Ke2 g1B Bf4 Nc3+ Kf1 Ba3 Qe7 Nb1 Qee4 Bgc5 Bh3 Na6 Bf5 Rd8 a8Q+ Kb5 Be6 Qdc6 Nd6+ Kb6 Bg4 Rb8 Bf5 Rb7 Qb8 Qa4 Nf3 Bc8 Nd2 Qac6 Nb3 Qd5 Nf7 Kc6 Nbc1 Rb4 Bg4 Bf5 Ng5 Kd7 Bh3 Re8 h8N Re5 Nhf7 Qdd4 Qbb7 Ke8 Nh7 Bc8 Be6 Rh5 Qb8 Qdd8 Bd5+ Be6 Bb7 Qd7 Bc8 Q8c7 Nd6+
1rq1b2n/1R1p2pn/b4r1q/2pQ1N1R/1n5R/p1R5/Q2Qk2b/2Kn1R2 b - - 0 1 illegal: No possible last move
1n5r/1b2p1nQ/7p/3n4/nr2QRQq/k3Q1q1/nRrQ2NQ/n3b2K b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 Nf3 a5 Ba3 axb4 Ng1 bxa3 h4 Kf7 g5 Qe8 Bh3 Nc6 Bg4 hxg4 h5 Na7 h6 Nb5 h7 Qd8 Nc3 Nc7 Nce2 Na6 Ng3 Nb8 Nf5 Ke8 Nh6 gxh6 Kf1 d5 Kg2 Kd7 c4 Kd6 f4 Kc5 a5 Kb4 g6 b5 f5 e3 a6 d3 f6 d4 a7 d2 f7 d3 g7 e2 c5 e1Q c6 g3 c7 a2 Qc2 d1N Qc6 d2 Qe4+ Qd4 Qg6 Nf6 g8Q Qh4 Rh2 Bb7+ Nf3 Ka3 c8Q b4 Rb1 a1N Rh3 b3 Qcf5 b2 Qfg5 Nc3 Rh1 d1N Qg4 Na2 Q6f5 Ne8 Qd5 Bg7 f8Q Bc3 Qff4 Ng7 Rf1 Ne3+ Kg1 g2 Q8e6 Rc8 h8Q Qeg3 Qd2 Nd5 Ne1 Rc4 Qh7 Rb4 Rd1 b1R Qee3 R1b2 Rb1 Rc2 Qfe5 Na6 Rf4 Rh8 Rb2 Nb8 Qdd1 Nb6 a8Q+ Na4 Nd3 Be1 Qdd2 Ba6 Qae4 Bb7 Qh3 Qg6 Kh2 g1N Kh1 Qgg3 Q5d4 Ne2 Qh2 Nec3 Qd7 Bf2 Qg4 Nd5 Ne1+ Rb3 Q3d4 Rb4 Ng2 Be1 Qd4e3+
b4KB1/4NN2/1p2PrR1/1rn2npr/4r1p1/3n4/2qbp1Q1/kBr2RN1 b - - 0 1 legal: proof: e4 a5 f4 c5 b4 axb4 d4 cxd4 g4 e5 a3 bxa3 g5 exf4 Be3 dxe3 g6 hxg6 Be2 g5 Bf1 g4 Ke2 Ke7 Kd3 Kf6 Kc4 Ke5 h4 d5+ Kb5 g5 c4 f5 h5 b6 h6 d4 h7 e2 c5 d3 c6 Kd4 e5 a2 e6 f3 c7 f4 Na3 Kc3 Nh3 Kb2 Nc2 d2 Bg2 f2 Bc6 f1R Nd4 f3 Rc1 a1R Rh2 f2 Nf3 R1a4 Ne5 Nd7 Nf7 Bb4 Be4 Ne7 Bb1 Nc5 Ng1 Ka1 Rh6 Bb7 c8B Nf5 Bd7 Qc7 Be8 R8a5+ Kc4 Ba8 Rg6 Qc8 Qc2 d1N Qe4 Rb5 Qg2 Nc3 Rd1 Nd5 Re1 Nf4 Rc1 Rf8 h8N Nfd3 Rd1 Re1 Rc1 f1R Rd1 Ra7 Rc1 Rb7 Kd5 Rf4 Rd1 Re4 Rc1 Nh6 Kd6 Bd2 Rd1 Rb8 Ke7 Rf1 Re1 Qc6 Rc1 Rc8 Re1 Rf6 Rd1 Rg8 Rf1 Rg7 Kf8 Nf5 Rh6 Rc7 Ng6 Rh7 Ne7 Rc8 Rg6 Rh5 Rh6 Nb7 Rg6 Qc2 Rg8 Nbc5 Rg7 Rfh6 Rg6 Rc7 Nd6 Rc6 Bf7 Rc7 Bg8 Rc6 Rg7 Rf6+ Nf7 Qd1 Nf3 Nd7+ Ke8 Rc1 Rg6 N7c5 Ng1 Qc2 Kf8
2bQ1Rkr/rQ1nb3/B3N1N1/4R1rn/3r1r2/bp2P2K/b1q5/r2n3B b - - 0 1 illegal: No possible last move
4rQNb/B6q/1nbb2Rn/p1k4n/2rb4/5PRr/1pNK3N/1b3R1r b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 d4 gxh4 b5 c5 b6 cxd4 a4 axb6 c3 d3 a5 bxa5 Be2 Qc7 Bg4 Qb6 Be6 Qc7 Bb3 Qd8 Bc2 dxc2 g4 e5 f3 Ke7 g5 b5 c4 h5 g6 d5 g7 Kd6 Rh3 e3 Ra3 d4 Ne2 e4 Ra4 b4 Qd3 b3 Qc3 b2 Ra2 d3 Rh2 h3 Ra1 h4 Qf6+ Kc5 Nf4 d2+ Ke2 d1B+ Ke1 e2 Ra3 Nh6 g8N Qc7 Ra1 Bd7 Nc3 Bd6 Rh1 h2 Ra2 h3 Bd2 c1R Ng6 Bc6 Qh4 Nd7 Qf4 Re8 Nd5 Nb6 Qf8 Qh7 Rg1 h1N Rg3 h2 Ne3 Rc3 Ra1 Bc2 Rd1 Bb1 Ne5 Rc2 Rg6 Ng3 N5g4 Nh5 Bc1 Rc3 Kd2 h1R Nc2 Rh3 Nh2 e1B+ Ke2 Bh4 Rf1 Bf6 Be3+ Bd4 Bf2 e3 Kd1 e2+ Kd2 Ba4 Be3 Kc6 c5 Rc4 Bg1 Kd5 c6 Kc5 c7 Bc6 c8R e1B+ Kd1 Bh4 Kd2 Bf6 Rc7 Be5 Rcg7 Kb5 Rc1 Bc3+ Ke3 Nf4 Qf7 Rg3 Qe6 Na4 Nf6 Rhg8 Rg4 Nh5 Qe7 Rh3 Qf8 Kb6 R7g5 Rg6 Ng8 Bh8+ Qe7 Bce5 Kd2+ Kb5 Ba7 Nb6 Rf1 Kc5 Rgg1 Rg7 R5g2 Bd4 Qf8 Rg6 Rd1 Rge6 Rg6 Re1 R1g3 Rh1 Rf1
5BK1/N7/rkb1BRb1/4p3/1rnpn2r/1pQn1n2/PRnbq2B/6R1 b - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 fxe4 h4 g5 h5 a5 c5 axb4 Nd2 b3 h6 Bxh6 c6 b2 Ndf3 Bf8 Nh4 gxh4 Ne2 Nxc6 Ng1 Nb8 Kd2 b1R f4 e5 g4 b5 g5 h5 g6 d5 g7 Kd7 f5 Kc6 f6 e3+ Kd3 b4 f7 e2 Rh3 e1N+ Kd2 d3 Ke3 d2 Bd3 Kb6 Qe2 d1N+ Kd2 Nf6 g8R Na6 Rgg3 Ne3 Rg8 Bh6 f8B Nc4+ Kd1 Bd2 Rg5 Nf3 Kc2 Ne4 Rg2 Bf5 Qf1 Bg6 Ne2 d4 Rhh2 h3 Rg1 h4 Qe1 Qc8 Nc3 Qg4 Nb5 Qh5 Re2 h2 Na7 h1N Rf2 Rb3 Rb1 h3 Rb2 h2 Bf1 Qg4 Bh3 Rh4 Qe3 Qg2 Qc3 Qf1 Bf5 Qe2 Rff1 Nhf2 Be6 Nd3 Rf2 Ra3 Rff1 Ra5 Kb3 h1B Rf2 Ra4 Rff1 Be1 Bf4 Bd2 Bg3 Nc7 Bh2 Nb5 Rf2 Nba3 Rff1 Nfe1 Rf6 Nac2 Nc6 R8a6 Na7 Ncd6 Be7 Nf3 Bf8 Nb7 Kc4 b3+ Kd5 Na5 Rg3 Rb4 Rg1 Nec5 Kd6 Ne4+ Kd7 Nc4 Ke7 Bf5 Kf7 Bg6+ Kg8 Ng3 Nc6 Ng5 Na7 Bc6 Bd5 Nf3 Bf7 Ne4 Be6
2N4K/r2pnpQ1/3RB2p/kp1nNN1R/2b5/1Pp4q/r1R2nnb/7r b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 a4 e5 b3 exf4 Nc3 a5 d4 cxd4 Ba3 d3 Bb4 axb4 Qc1 d2+ Kf2 d1R c5 Rd4 Ke1 Rd3 Qb2 Rd2 Rd1 Rc2 Qc1 Ra2 Nb1 Ra3 Qc3 bxc3 c6 Ra1 Rh3 Nxc6 Rh1 Nb8 Kf2 b5 Kf3 h6 Ke4 f3 Ke5 h3 e4 f2 g4 h2 a5 Qb6 a6 Kd8 a7 Kc7 g5 Ra4 g6 Rb4 g7 Ba6 Rd6 Bb7 Bc4 f1N Na3 Ne7 Kf6 Nbc6 g8Q Ne3 e5 Ng2 e6 Qe3 Nc2 Kb6 Nf3 Ka5 Ne5 Qh3 Qg7 Rg8 Bd5 Ra4 Ne3 Nb4 Nf5 Ra2 Rc1 h1N Rc2 Nf2 Bc4 Nc8 e7 Bd5 e8R Ne7 Rc8 Be6 Rc5 Bd5 Be2 Bc4 Bg4 Rb8 a8N Rb7 Nb6 Ra7 Qh7 Rg5 Nc8 Rh5 Qg6 Qf3 Qh7 Rh1 Qg7 Qh3 Ne3 Na6 Be6 Nc7 Nf5 Nc6 Rd4 Bd6 Rcd5 Ne7 Rh4 Na8 Rh5 Nb6 Rdd2 Bc7 Rd6 Bb8 Qf8 Nbd5+ Kg7 Bc7 Kh8 Bb8 Rc6 Bd6 Qg7 Bc7 Nd3 Bg3 Rd6 Bh2 Ne5
K7/4N1PQ/nbn1B2k/1q2q1R1/NpQ3qn/R6Q/1pr2nr1/5b1r b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 a4 bxa3 d4 g5 h4 gxh4 Nd2 c5 Nb1 cxd4 Bb2 axb2 Kd2 h5 Kd3 f5 Kc4 d3 Kb5 Kf7 g4 Kg6 e4 h3 d6 h4 e5 h2 g5 f3 d7 d2 e6 f4 e7 f2 Ra3 h3 Qf3 d1Q Nd2 Qa5+ Kc4 b5+ Kd5 b4+ Kd6 Ba6 Qg3 f3 Bg2 f1N d8Q f2 Bd5 Ne3 Nb3 f1Q Qf3 Ng2 Ne2 Bd3 Qd7 Na6 Kc6 Rc8+ Kb7 Rc2 Rg1 h1N Qfg4 h2 Ned4 Nf2 Ka8 h1R Nc6 R8h2 Qh3 Nh4 Nc5 Kg7 e8Q+ Ne7 g6 Kh6 Rg5 Rg2 g7 Qg4 Qec8 Qfe2 Qdd8 Qe5 Be6 Qb5 Na4 Bf1 Qdd3 Rg3 Na7 Rg2 Qcc4 Nc6 Nc8 Bc5 Ne7 Bb6 Qh7+
1rn5/4B3/5pbn/1Bp4Q/K2pR2b/3qPq1n/R7/nNqnkQ1Q b - - 0 1 legal: proof: f4 a5 b4 axb4 d4 g5 h4 gxh4 a4 bxa3 c4 e5 d5 exf4 c5 b6 Nc3 c6 Na4 cxd5 c6 d4 Nc5 bxc5 Kd2 Ke7 Kc2 Kf6 Kb3 Kg5 g4 d5 c7 h5 e3 d3 Bd2 a2 Bh3 f3 Qf1 f2 Qe1 f1Q Rb1 a1N+ Kc3 Nc6 Qc1 Be7 Rb5 Rb8 Rb6 Qf3 Kb2 Nh6 Ka3 Rf8 Qf1 Na7 Rc6 Bf5 c8Q Bg6 Qe6 Nc8 Be1 d2 Ra6 d1N Ne2 Bf6 Bg2 h3 Qe8 h4 Nc3 h2 Nb1 h3 Ka4 Be7 Bc3 Kh4 g5 Kg3 Bf6 Qd6 Rg1 h1N Ra8 Bd8 Be7 h2 Qe1+ Nhf2 Bf1+ Qg2 Rh1 Qf3 Bb5 d4 Rf1 h1Q Ra6 Qdf4 Re6 Qe2 Re4 Qd3 Rg1+ Kf3 Rg2 Nh3 Ra2 Qf5 Qh4 Qg4 Qh5 Kg3 Qd7 Qgf3 Qb7 Qe1 Qd5 Qed2 Qa8 Kf2 Qb7 Ke1 Qd5 Bf5 g6 Qc1 g7 Bh7 g8Q Bg6 Bd6 Bh4 Be7 f6 Qg7 Rd8 Qa8 Rd5 Qb7 Rf5 Qd5 Bh7 Qg2 Bg6 Qg8 Rg5 Qh1+ Rg1 Qg7 Rf1 Qg8 Bh7 Qgg1 Bg6 Qxf1+
2B1b3/k1N1PR2/2bb1p2/Nn6/1qB2nQ1/1Q1qp3/n3pb1K/1nr1N3 b - - 0 1 legal: proof: d4 g5 h4 gxh4 b4 c5 f4 cxd4 b5 a6 e3 dxe3 Qh5 axb5 Qg4 Bg7 Qd1 Bf8 a4 e5 a5 e4 Nd2 b4 Ba3 b5 Nb1 Ra6 Nd2 Re6 Nb1 Re5 fxe5 Qg5 Bb2 Qd8 Ra4 bxa4 Ba3 bxa3 g4 a2 c4 a1N g5 d5 e6 h5 g6 e2 Kf2 e3+ Kg2 d4 g7 h3+ Kg3 f6 c5 h2 a6 h4+ Kh3 d3 a7 d2 a8Q a3 c6 a2 c7 Bd7 c8N Na6 Bg2 Ne7 g8B Nd5 Nf3 Nb3 Rg1 h1B Nb6 a1B Nh2 Nd4 Qc6 Bc3 Qe1 d1N Qd2 Nb5 Qa2 Be1 Na8 Bf2 Ng4 Nab4 Re1 N1c3 Qcc4 Qe7 Rg1 Kd8 Qd3 Kc8 Qa4 Kb7 Nd2 Be8 Nc7 Nb1 Qdb3 Na2 Ne5 Qc5 Qac4 Ka7 Nef3 Bd6 e7 Qb4 Bf1 Rh6 Rg7 Rg6 Qe4 Rg1 Bg2 Rd1 Ne1 Rc1 Bf1 Bf3 Nc4 Bh1 Na5 Bg2+ Kg4 h3 Be6 h2 Rf7 Bh1 Bh3 Bg2 Qf4 Be4 Qg3 Nf4 Bc4 B4c6 Kh4 Nd3 Bc8 Nf4 Nf3 h1Q+ Kg4 Qd1 Ne1 Nd5 Kh3 Qd3 Qg4 Nf4+ Kh2
nrR3k1/rr4p1/3n1Q2/Q1b3QP/Kb2q3/nB3bn1/1R3br1/1rN1B3 b - - 0 1 illegal: No possible last move
1B6/2Rp3k/nr2n2Q/2pqQ1n1/6N1/Nr5q/RP2n1b1/bqR1K1nb b - - 0 1 illegal: Other
2n3nB/1bR2RK1/1Qn5/n1rnk1N1/Pq2nQ1b/3qn2r/3p1Np1/7R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Ba3 d5 Bc1 d4 c4 bxc3 a3 hxg4 e3 b5 Bc4 b4 Ba2 b3 Qd3 bxa2 Qd2 Be7 Qd1 Bf8 Ke2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 g5 h4 c2 a4 f3 e4 f2 h5 f1N h6 f4 h7 g3 Ba3+ Ke5 Qe2 c1N+ Kc4 d5+ Kb5 f3 Qd3 f2 Bc5 g4 Qe2 d3 Be3 d4 Kc4 d2 Rh2 d1N Qb2 g2 Qb6 g3 Na3 d3 Bg5 d2 Qb2+ Nc3 Nb5 Nd7 Rh1 Nb3 Be7 Nd4 Nc7 Nc6 Ne6 Ra5 Ng5 Bb7 Qb6 Nd5 N1h3 g1Q Rc1 a1N Bb4 g2 Bc3+ Kd6 Kd3 Nfe3 Bb2 f1N Nf2 Ng3 e5+ Ke7 e6 Kd6 e7 Rc5 e8Q Nb3 Qh5 Na5 Qf3 Ne4 Rc2 Qb1 Qf4+ Ke7 Be5 Qb4 Rc3 Bg7 Rc4 Bf6 Rf1 Na7 Kd4 Nb8 Rh1 Kd7 Rf1 Be7 Bg7 Nc8 Ke5 Nc2 Kf5 Nce3+ Kg6 Nbc6 Bf6 N8a7 Kg7 Nc8 Qg4+ Kd6 Bb2 Ndf6 Qf4+ Kd5 Rc3 Kd4 Ba1 Nfd5 Rh1 Ne5 Nf7 Qd6 Rh6 Nc7 Rf6 Kd5 Rf5 Rb5 Rc6 Rc5 Bd4 Nb5 Rc7 Nbc3 Rf6 Nec6 Kg6 Qd7 Rf5+ Ke6 Bf6 Qd3 Be5 Nh6 Bg7 Ncd5 Bc3 Rd8 h8R Rd7 Ba1 Ng8 Rh1 Bg5 Bh8 Re7 Ne5 Rh7 Rff7 Rh3 Kg7 Be7 Nf3 Bh4 Qg4+ Kd6 Ng5 Ke5 Qf4+
6br/q1p4r/4n2b/R3p2Q/nPnp4/B1NnRR2/bNQ5/qbk3K1 b - - 0 1 legal: proof: e4 f5 a4 fxe4 h4 b5 h5 bxa4 h6 gxh6 Ba6 h5 Bf1 h4 b4 d5 Bc4 d4 Bb3 axb3 c4 Bh6 c5 Bxd2+ Kf1 Bh6 c6 Bf8 Ke2 Nxc6 Ke1 Nb8 Kf1 Kf7 g4 Kg6 f4 h5 g5 Rh7 Qd2 Kf5 g6 a5 g7 e5 Qh2 b2 Bd2 h3 Bc1 a4 Qe2 h2 Ra3 e3 Nf3 Ke4 f5 h4 f6 h3 f7 Be6 Qd1 e2+ Kf2 e1N Qb3 Nc6 Qc3 Nf6 g8Q Na5 Qg7 Nd5 Qg8 Nf4 Ra1 a3 Rg1 h1Q Qb3 a2 Qg4 h2 Rg2 Qb8 Be3 Bh6 f8R Nc4 Qg8 Qa7 Qa4 Kd3 Rg6 Rd8 Qd7 Kc2 Rg3 Bf7 Qgg4 Ne6 Rg8 Rf8 Bf4 Kd1 Bc1 Rb8 Rg6 Rbh8 Qh5 Bg8 R6g4 Kc2 Re4 Kd1 Re3 Kc2 Na3+ Kd1 Nb5 Kc2 Rb1 a1N Nc3 Nb3 Ra1 Nbc5 Ra5 Qg1+ Ke2 Qh1 Qg7 Na4 Kf2 b1B Qf8 Ba2 Ba3 Ncb6 Nd2 Nd3+ Ke2 Qc1 Nc4 Qa1 Nb2 Kc1 Kf1 Bb1 Rh3 h1B Qf2 Bd5 Kg1 Bda2 Rhf3 Nc4 Qc2+
NKn1r1n1/1b6/1r2P1q1/3n1N1p/1q1n2B1/B5Nq/1k1r2R1/1BR1n1bq b - - 0 1 illegal: No possible last move
1Q4nK/R2q4/2N1P2p/b2R3n/2n5/N1rq3r/1bbqnk2/Bq1N1rN1 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nd2 exf6 Nb1 f5 Qd2 f4 Qd3 Qe7 Qd1 Qd8 h4 gxh4 a4 bxa3 e3 b5 Bc4 b4 Ba2 b3 Qe2 bxa2 Qh5 Ra5 Qd1 Ra8 Ke2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 d5 g4 f5 c4 d3 e4 d2 c5 f3 c6 h3 c7 Kh4 g5 Kg3 g6 f2 g7 f1N Qb3+ Kf2 Ne2 d1Q Nbc3 h2 Ng3 d4 Rg1 h1N Qb6 f4 Qg6 d3 Qh6 f3 Qg5 d2 Qe7 Nc6+ Kf4 Qd3 Kg5 Na5 e5 Nc4 Nb1 Bf5 e6 Rc8 Qe8 Bb4 Bb2 Ba5 Ne2 Nfg3 Bf6 Q1c2 Rd1 Nh5 Ng1 N1g3 Qb5 Qd7 Qb8 Ne2 Bb2 Qcd3 Be5 Ngf6 g8N Bg6 Ne7 Ng8 Nc6 Bf5 Rc1 d1Q Rc3 Be4 Rb3 Q1c2 Rb5 Qcc3 Rd5 Qdd2+ Kh4 Bc2 Kg4 Qcd3 Kh4 Ke3 Kg5 f2 Bf6 f1R Bg7 Rcf8 c8N R8f3 N8e7 Rh3 Nf5+ Kf2+ Ne3 Rf3 Nc3 Rh3 Nb5 Rf3 Rd1 a1B Bc3 a2 Na3 Bb2 Ra1 Ne7 Kh6 Rc8 Rd1 a1Q Rb1 Qa2 Ra1 Rh3 Bf6 Qb1 Ra2 Nhg3+ Kg7 Ng8+ Kh8 h6 Bd4 Bc1 Ba1 Nh5 Rb2 Rc7 Rb7 Rc8 Ra7 Bb2+ Nd4 Ne5 Nc6 Rc7 Nd8 Rc3 Nc6 Nc4 Nd1+
4r3/1rR2R2/B6b/kp4b1/bN3B1q/1n1KRq2/p1Pb2rq/1nRn1N2 b - - 0 1 legal: proof: b4 c5 a4 cxb4 d4 e5 f4 exf4 g4 h5 d5 hxg4 a5 b3 Be3 b2 Qc1 bxc1Q+ Kf2 Qxa5 d6 Qd8 Bc5 a5 Ba3 a4 Bb2 a3 Bd4 Bxd6 Bb2 Bf8 e4 f5 Ke2 g5 h4 d5 e5 Kd7 h5 Kc7 e6 Kb6 h6 d4 e7 f3+ Kd3 f4 e8R a2 h7 f2 Re3 g3 Re1 f3 Ke4 g2 Bd3 f1Q Rh3 g4 Bc4 g3 Ba6 f2 Bd3 Nc6 Re2 Bd7 Ba6 d3 Rh2 d2 Ke3 d1N+ Kd3 Qh4 Nd2 Na5 Bc3 Nf6 Bc4 Ba4 Nb1 Nd5 Be1 N5c3 Rh1 Ra7 Bd5 Qch6 Rh2 Nb3 Nh3 g1B Bg8 g2 Bc4 Ka5 Ba6 b5 Bd2 Rb7 Bc1 Bb4 Be3 Re8 Nd2 Nb1 h8R Q6f4 Rh1 Qh2 Bf4 Bf8 Rh7 Bh6 Re7 Bg5 Ke4 Bh6 Re3 Qe2 Nf1 Qf3+ Kd3 Bg5 Nd2 f1R Rc7 Rf2 Nf1 Re2 Rf7 Bf2 Rc7 Be1 Nf2 g1B Rf7 Bd2 Rc7 Nbc3 Rc1 Nb1 Rf7 Q2g3 Rh3 Qh2 Rg3 Bh6 Rgg7 Bg5 Rc7 Bh6 Rgf7 Bg5 Ne4 Rg2 Nc3 Bf2 Nd5 Bg3 Bd6 B3f4 Nb4 Bh6 Be5 Bfg5 Bf4
Q3bn1q/1Q2n2p/p2P2nb/7R/4prq1/N2qkrN1/B3b2K/1Qn4N b - - 0 1 legal: proof: c4 f5 a4 d5 e4 dxc4 a5 fxe4 Nf3 b6 Ng1 bxa5 b4 g5 h4 gxh4 Bb2 a4 Bd4 Qxd4 Ra3 Qd8 Rd3 a3 b5 Bh6 Rf3 Bg7 Rf8+ Bxf8 f4 Kf7 Kf2 Ke6 d4 Kf5 d5 e5 g3 c5 Kg2 a6 b6 e3 g4+ Ke4 b7 e2 g5 e1N+ Kh2 c3 f5 c4 g6 c2 g7 c1N f6 a2 f7 a1Q Nd2+ Ke3 Qh5 h3 Ne4 c3 Kg3 c2 Be2 h2 Nf2 e4 Qh4 Ne7 g8Q Bd7 Bg4 Be8 Bf5 Nf3 Be6 Ne5 Ne2 Bh6 f8N Nbd7 b8Q N5g6 Qb7 Qa3 d6 Qd3 Bb3 Qc8 Ne6 Ndf8 N6d4 Qf5 Rf1 h1B Nb5 Bf3 Rh1 Qg4+ Kh2 Rc8 Qgd5 Rc3 Ng3 Be2 Ba2 Rg8 Qhh5 Rg7 Qh3 Rf7 Na3 Rf4 Qh4 Rc5 Qdb3 Rcf5 Qb1 Rf3 Qh3 R5f4 Qg2 Nb3 Qh3 c1Q Qh5 Qb2 Qhd5 Nc1 Qa8 Qh8 Qdb7 Bg5 Kg2 Bh6 Rh5 Qd5 Kh2 Qd3 Nfh1
rrQ5/4Rp2/1Pr2b1K/N3b3/1rN1nr2/2qk2N1/3nN1BN/q3qn2 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 b5 a4 bxa4 h4 g5 c4 gxh4 b5 e5 Ra2 exf4 b6 a3 Rb2 Ba6 Rb5 Bxb5 cxb5 Bh6 Bd2 Bf8 Bb4 Bh6 Bf8 Bxf8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 e3 d5 g5 d3 g6 a2 b7 a1Q g7 d4 b6 h3 Na3 d2 Qc1 d1Q+ Be2 h2 Qc5 a4 Qc3 f3 Bf1 d3 Nb5 d2 Qc8 a3 Nd4 f2+ Nde2 a2 Qc4+ Qdd4 Kg5 h5 Qe6+ Kd3 e4 h4 e5 h3 Qf6 Qe1 e6 d1R e7 Na6 e8N Qdc3 b8N Be7 Nc7 Nc5 Nca6 Rb1 Nc6 Rb4 Nab8 Nb3 Nd7 Nd2 Bg2 f1N Na5 Bd8 Qe7 Nf6 g8N Rb8 Nh6 Nfe4+ Kh5 Ra8 Qg5 Bf6 Nf3 Rhb8 Qf5 Be5 Rg1 h1R Nh2 Bf6 Qc5 Be5 Nf5 Bf6 Nf3 h2 Nfg3 Be5 Qc8 Bf6 Bh3 Be5 Rg2 Rg1 Kh6 h1R Rh2 Bf6 Bg2 Be5 Rh5 Rh4 Nh2 Rf4 Bh3 Bf6 Re5 Rg2 Re7 Be5 Nh1 Rg8 Bg2 Rg6+ Kh7 Rc6 Nhg3 Bf6 Kh6 Qab2 Nf8 a1B Ng6 Qba3 Nh4 Bb2 Nhf5 Qaa1 Nd6 Qc4 Qg4 Bbe5 Qc8 Qcc3 Ndc4
1n1kb3/pq1r1np1/1B1BR3/3b3P/n5bn/nr4B1/2RQ3Q/b1K3bR b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 a4 hxg4 Bg2 b5 Bd5 bxa4 Bb3 axb3 e4 e5 Nf3 d3 Nd4 exd4 e5 f6 Nd2 f5 Ne4 fxe4 Kd2 d5 h4 g3 f4 b2 c4 b1N+ Ke1 e3 c5 e2 h5 g2 c6 g1B e6 Bd7 b5 Be7 c7 Qc8 b6 Bf6 f5 Na3 Kd2 e1N e7 Nh6 b7 Ng2 Ra2 Nf7 Qf1 Nh4 Kd1 d2 Ke2 d1N Kd2 d3 Ra1 d4 Qh3 Nb2 Qg3 Na4 Ra2 Bb5 Kd1 d2 Rc2 Bc6 Qh2 Bd5 Bb2 Kd7 Bc1 Rd8 e8R Be5 Re6 Bf6 Ke2 d1B+ Kd2 d3 Bb2 Bfd4 f6 Bg4 Kc1 Be5 Bc3 Bed4 Ba5 Ba1 Rd6+ Ke8 Bb6 Qd7 c8Q Qc6 Qf5 Rd7 Qf1 Qc7 Re6+ Kd8 Qfe2 d2+ Kd1 Bf5 Qe3 Bg6 Qd3 Nd6 Qd4 Be8 f7 Nc6 f8B Nf7 Bd6 Rb8 Bbc5 Qb6 Ke2 d1B+ Kd2 Bg4 Kc1 Rc8 Qe3 Nb8 Qed2 Qa6 Bf2 Rc3 Be3 Rb3 Bg3 Nc6 b8B Qb7 Bbd6 Nb8 Bb6+
1nrrr3/Q2R2KB/6P1/R2b4/r1r3bb/Q2n1N1n/RnqR4/2n1q1k1 b - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 h4 cxd4 f4 g5 f5 gxh4 f6 e5 Bf4 exf4 Nd2 b3 Rb1 Qxf6 Ne4 b2 Ra1 Qd8 Nd6+ Ke7 Ne8 Kxe8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 Kh5 Ke4 c4 Ke3 g4 Kf2 e4 b1N c5 d5 g5 b5 g6 f5 c6 b4 c7 b3 a5 h3 e5 b2 a6 d3 a7 h2 e6 d4 e7 f3 e8Q d2 Bg2 d3 Qe7 f4 Qf7 Qe8 Qe7 Nf6+ Kg5 h5 Qe5 h4 Qa5 h3 Qb4 Be7 Qb5 Nfd7+ Kf5 Ne5+ Qd7 Bh4 Qa4 d1N Qa6 d2 Ra3 Nd3 Rc3 Qe1 Qa4 Re8 Rc1 Nbc3 Qa1 b1Q Qa6 Qc2 Qa4 Na2 Qb5 N1b2 Qa5 d1R Ra1 Nac1 Ne2 Rd2 Rg1 h1B Ra4 h2 Bf1 Bg2 Ra2 h1N Nd4 Rd1 Kg4 Rd2 Kh5 Rd1 Qdb5 Bg4+ Kh6 Rd2 Qbb4 Rc8 Ra1 Re2 Ra4 Ree8 Kg7 Ne5 Ne6 Rcd8 Qbb6+ Qe3 Qc6 Qee4 Nc5 Qb4 Nb3 Qbc3 Ba6 Qe3 Rd1 Qe1 Qb4 Kg1 Rd2 Nf2 Bc4 Nh3 Ra2 f2 Qcb6 f3 c8R Qcd1 Rc7 Bh1 Bg8 Qc2 Qa6 f1R Rcd7 Rf2 R2d5 Rc8 Rf7 Rd2 Bh7 f2 Qba3 f1R Rf2 Rd3 Rd2 Rf4 Rd8 Rd6 Q6a4 Rfc4 Nd4 Bd5 Qa6 Rde6 Qb6 Rh8 Rd7 Ned3 Qba6 Rhd8 Q6a5 Ree8 Qb6 Nc6 Qbc5 Rab8 a8R Rbb4 Ra5 Nb8 Qa7 Ra4 Nf3+
2b4N/1Nrnp1K1/P3B2R/1N1q3r/q4N1q/Qk1b4/2n1r1Qq/2qb2b1 b - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 h4 cxd4 e4 g5 e5 gxh4 e6 b3 Ra2 fxe6 Qf3 e5 Bh6 e4 Ra1 Nxh6 Ra3 b2 Qd1 Ng8 Rf3 Bh6 Rf8+ Bxf8 Ke2 Kf7 g4 Ke6 f4 Kd5 f5 Kc4 a5 b5 a6 h5 c3 d5 f6 e3 Kf3+ d3 Kf4 d4 Ke5 e2 g5 e1R+ Qe2 b4 g6 b3 f7 h3 g7 h2 Nf3 h4 Qe3 h3 Rg1 h1Q Qe2 h2 Rg3 Bg4 Bg2 Qd5+ Kf4 Nh6 Qf2 d2 Ng5 d1Q Bf1+ d3 Qe3 Re2 g8Q d2 Bh3 Bg7 f8N Ra7 Ng6 Nf5 Nf7 Bd4 Kg5 Rh7 Qf3 Bg1 Nf4 Nd4+ Kg6 Qc1 Nh8 d1B Rg2 Nc2 Qg3 Bd7 Be6 Rh4 Rf2 Qg2 Kf7 h1Q Q8g7 Qgh3 Rh2 Q3g2 Kg8 Rh6 Rh5 Qh4 Q7g6 Rb7 Kg7 Qgh2 Qf3 Ra7 Qgg2 Rb7 Rg5 Rh5 Rg6 Bc8 Qfh3 Nd7 Rh6 Ra7 Qhg3 Bb7 Na3+ Kc5 c4 Kb4 c5 b1Q c6 b2 c7 Qba2 Nb5 Qa4 c8N Kc4 Rh7 Kb4 Nb6 Bc8 Rh6 Rb7 Qe3 Rc7 Qc5+ Kb3 Nc4 b1B Ncd6 Nb4 Nb7 Bd3 Qd6 Nc2 Qa3+
4Bk2/R5rR/6np/N1pr4/1n1RQ1Kp/1qbn2R1/pPb3Q1/2br1b2 b - - 0 1 legal: proof: c4 e5 a4 b5 h4 bxa4 f4 exf4 c5 g5 c6 gxh4 d3 dxc6 Nc3 a3 Nd5 c5 Rb1 Qxd5 Be3 c4 Ra1 Qd8 Bc5 Bg7 Bf8 Bxf8 Kf2 a5 Kf3 f5 e4 c5 g4 h6 g5 a4 d4 c3 g6 a2 e5 a3 d5 c2 e6 c1B e7 Rh7 d6 Qb6 g7 Nc6 Ba6 Ne5+ Kg2 f3+ Kh3 f2 Nf3 f1R Ng5 f4+ Ne6 f3 Qd2 f2 Be2 Rd1 Rg1 Qb3+ Rg3 Nd3 Kg4 f1B d7+ Kf7 e8R Ne7 d8R Ng6 Qe3 Ra4+ Qe4 Rd4 Rd6 Rd5 Re7+ Kg8 Rd8 Bd7 Rf7 Ba4 Rd6 Be7 Nd8 Bf6 Nb7 Be5 Na5 Bc3 Rb1 a1N Re7 Ndf4 Bb5 Nc2 Ra1 Nb4 Be8 Nfd3 Rdd7 a2 Ra7 Bg5 Rc1 Bf4 Rc2 Bc1 Rd2 Qa3 Rf7 Bc2 Rfd7 Qb3 Rdb7 Ne1 Rd4 Ned3 Bd7 Kf7 g8Q+ Kf6 Qa8 Kg7 Be8+ Kf8 Qg2 Rg7 Re7 Rg8 Rh7 Rg7 Qc6 Bb1 Qe6 Bc2 Qee4
1N1b1NB1/2b5/1R6/1pnkN1P1/1K3n1p/n1p2qB1/NpBq2b1/rn6 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 d5 Qb3 b6 Qc4 dxc4 c6 Ra6 Rh3 axb4 a5 b3 Ra2 b5 Rh1 Rxc6 Ra3 Rb6 axb6 b2 Ra8 Nc6 Rb8 Nxb8 d4 Ke7 Kd2 Ke6 Kc3 c5 e4 f5 g4 h5 e5 h3 b7 h4 g5 f3 Na3 f2 Bg2 f1N Nf3 h2 Ng1 f4 Bh3+ Kd5 e6 f3 e7 f2 e8B Nf6 Bed7 Nd2 Bf1 Nb1+ Kc2 c3 Kb3 c2 Bf5 Na6 b8N Nh5 Be2 f1N Nc4 Bb7 Bf4 c1B Ne5 Ne3 Bg3 Nc4 Bc2 Be7 Bed3 Ba8 Ne2 Nca3 Bh7 Bf4 Rd1 h1Q Nc1 Qf3+ Rd3 Qa5 Na2 Qd2 Rc3 Bd8 Bg8+ Kd6 d5 Rh7 Ng6 Ra7 Nf8 Ke5 d6 Bc6 Ne6 Kd5 d7 Bfc7 Re3 Nf4 Rc3 Be7 d8N Bb7 Nf7 Bed8 Re3 Ba8 Nf8 Bc6 Bd3 Ba8 Re6 Bb7 Rb6 Ba8 Nc1 c4+ Ka2 c3 Kb3 Nc5+ Kb4 Nc4 Bf5 Ra1 Na2 Nca3 Bc2 Bb7 Nc1 Bc8 Na2 Bh3 Bgh7 Bf1 Bg8 Bg2 Ne5+
r3qrB1/p7/b4k1q/p4Q2/3qB3/Rn1Qnqb1/K1p1PBR1/1Brn4 b - - 0 1 legal: proof: b4 d5 h4 e5 f4 exf4 a4 c5 c4 cxb4 a5 g5 c5 gxh4 Nf3 b6 Ne5 bxa5 Nc4 dxc4 Na3 bxa3 d4 Ke7 Kd2 h5 Kc3 f5 g4 a2 Kb2 h3 c6 c3+ Ka3 f3 d5 f2 d6+ Kf6 c7 h2 Qb3 c2 Qe3 h4 Rb1 a1Q+ Kb3 h3 d7 f4 Ba3 f3 Qd3 Nh6 Rg1 h1R Qa6+ Bd6 Qc4 h2 Qb5 Na6 Rg2 Rf8 Bc5 Qd4 Ka2 Nf5 Rb3 Ne3 Ra3 Nd1 Bb6 Qe7 d8Q Bg3 Qdd7 Bb7 c8B Nc5 Qd3 Qe8 Q7b5 Nb3 Be6 Ba6 g5+ Kg7 g6 Kf6 g7 Rg1 g8B h1Q Bd5 Qh6 Rh2 Rh1 Bg2 f1Q Bc5 f2 Bge4 Qfh3 Rg2 f1N Qd7 Qf5 Bdf7 Qf3 Qg4 Qde5 Bf2 Nfe3 Qh3 Qd4 Bc4 Nb2 Bcf7 Rc1 Qf5+ Ke7 Be6 Nbd1 B6d5 Nc3+ Kb2 Nd2 Ba2 Nb3 Bb1 Ncd1+ Ka2 Qea4 Qg6 Qe8 Qh7+ Kf6 Qf5+
5rbQ/3Pq2B/4n2n/Q1B5/1q4B1/b4b1q/kQpr1N1r/b1K2Bnr b - - 0 1 illegal: No possible last move, all moves rejected
1QNbb1Q1/3Qr1np/4PK2/b3p3/Qr2NN2/1R1b4/3q1pbq/kb3n2 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 c5 h4 cxd4 h5 e5 h6 e4 Ra3 bxa3 Nh3 gxh6 Ng1 h5 Rh2 h4 Rh3 Qe7 Rh1 Qd8 Bf4 f6 Be5 Bh6 f4 Kf7 e3 Qf8 Be2 Qd8 Bf3 exf3 e4 Ke8 Bd6 Bg7 e5 Bh6 e6 Bf8 Be5 fxe5 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 g4 b5 c3 d5 g5 b4 g6 d3 a5 d2 g7 h3 a6 d4 a7 a2 Qe2+ Kb3 c4 Kb2 c5 a1B c6 b3 c7 h2 Qd3 d1B Nh3 f2 Qe2+ Bc2+ Qe4 d3 Ng1 d2 Nc3 d1B Nh3 Nf6 g8N Ng4 Nb5 Qd2 Rg1 h1Q Ne7 Nc6 Ng8 Qh2 Ng5 Bd3 Na3 Bf3 Nh3 Bg2 Ne7 Bd7 c8Q Rb8 a8Q Rb4 Nb5 Be8 Nc3 Ne3+ Kf6 Nf1 f5 Nd4 Qd7 Rg8 Qab7 Rg7 Nc8 Re7 Nf4 Bh6 Qb8 Bf8 Nce2 Ka2 Ng3 b2 Qec6 b1B Ne4 Bc3 Qa4+ Kb2 Kg5 Bg7 f6 Nf5 f7 Bh8 f8Q Ng7 Qc2+ Ka1 Kf6 Rb5 Qg8 Ba5 Qcc7 Rb4 Qca7 Ne3 Rc1 Nf1 Rc3 Nh5+ Kf5 Bf6 Rb3 Bh4 Qg5 Ng7+ Kf6 Qh1 Qa6 Qg1 Qac6 Qh2 Qa4+ Ba2 Qdd6 Rd7 Rb2 Nh5+ Kf5 Rdb7 Qg7 Bhd8 Qg8 Re7 Rb3 Ng7+ Kf6 Qe2 Qab5 Qd2 Qdd7 Bab1 Qa4+
n1bn1B2/1bQ1Q3/rp3K2/3bR3/bb1qQ3/r2P1R2/p1pn1Q1p/2Rk4 b - - 0 1 illegal: No possible last move
3nn1rR/B6b/p3b1qq/3B2q1/5nn1/K1b2NRP/pP4p1/2kNr2R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 e5 d5 exf4 d6 cxd6 Nc3 d5 Nb1 d4 c4 dxc3 e3 hxg4 Nd2 c2 Ke2 cxd1Q+ Kf2 Qc2 Ke1 Qb1 Kd1 Ke7 h3 Ke6 e4 Ke5 Nc4+ Kd4 e5 d5 e6 f5 e7 g5 e8R f3 Re7 g3 Rd7 a6 Bg2 Kd3 Rh7 g4 Rh4 a3 Nd6 f2 Ne8 f1N Ng7 f4 Rh2 f3 Rh5 d4 Rh4 a2 Ne8 f2 Nf6 Bg7 Nh5 Nc6 Bd5 g2 Be6 g3 Rf4 Qg5 Rg4 Nd8 Re4 Nf6 Bd5 Be6 Re1 Ne8 Bb3 Rg8 Ne2 g1N Ba4 g2 Nc3 Ne2 Ng3 Nf4 Rh1 Nh2 Bb3 f1Q Nge2 Ng4 Bd5 Ra7 Ng1 Re7 Nf3 Qg1 Na4 Qe3 Nc3 Qh6 Rhf1 Qe5 Re2 Qeg5 Rd2+ Ke3 Rh1 Qbg6 Rd3+ Kf2 Re3 d3 Rhe1 d2 Rd3 Nd6 Kc2 Ne8 Kb3 d1B+ Ka3 Bc2 Re5 Bb1 Nd1+ Kf1 Rf5 Ke2 Rf8 Bc3 Be3 Bc2 Ba7 Bb1 Nh4 Ke1 Rf3 Kd2 Rg3 Kc1 Nf3 Bd7 Rf7 Re1 Rh7 Be6 Rh8 Qe4 Nd2 Rg1 Nf3 Kc2 Nh4 Qef5 Ne3+ Kd2 Kb3 Qf7 Ka3 Bh7 Rf1 Qfg6 Nd1 Kc1 Nf3 Rh1 Rf2 Re1 Rf1 Qe4 Rg1 Qeg6 Rh1
2r1bb2/2q5/qrnn1n1Q/1kpb4/2NP4/2Q1r3/PNNr3p/n1R2KB1 b - - 0 1 legal: proof: c4 e5 b4 a5 h4 axb4 f4 exf4 h5 d5 h6 dxc4 e3 gxh6 Bd3 b3 Na3 h5 Rb1 Qxd3 Rb2 h4 Rc2 Qd8 Rc3 Qd5 Rd3 Qg5 Rd8+ Qxd8 d4 Kd7 g4 Kc6 e4 h5 g5 b5 g6 f5 e5 b2 e6 b1N g7 b4 e7 c3 e8Q+ Bd7 Rh2 h3 Rg2 c2 Qe3 f3 Qee2 h2 Nb5 h1B Bf4 c1N Rg5 f2+ Kf1 h4 Nf3 h3 Nh2 b3 Rh5 b2 Qa4 Na3 Qe1 b1R Qe7 Nc4 Qe6+ Nd6 Qa3 Nb3+ Qe1 Na1 Qa4 Be8 Bg3 f4 Ng4 h2 Rh6 Nf6 g8N Bd5 Ne3 Rb2 Qea5 Ra6 Nd1 Rd2 Nb2 Rb6 Qa3 Qe7 Qa6 Qd7 Rg6 Rh3 Bh4 Re3 Qd3 Qf7 Na3 Qh7 Nac4 Qf7 Qa7 Kb5 Nh6 c5 Rg1 Nc6 Nf5 Qc7 Qc3 Re4 Kg2 f1R+ Bf2 Rfe1 Rh1 R1e3 Rc1 f3+ Kf1 Rg4 Bg1 f2 Qb8 Rg7 Qb7 Rd7 Qc8 Rd8 Qd7 Rc8 Qh7 Re7 Nfe3 Re5 Nc2 Re4 Kg2 f1Q+ Kg3 Re1 Qh6 Re3+ Kh4 Nfe4 Ne5 Ka6 Kg4 Qb5 Nec4 Qa4 Kf4 Kb5 Kg4 Qa6 Kf4 Re1 Kf3 Nf6+ Kg3 Rd3+ Kf2 Ree3 Kf1 Rd1+ Kf2 Rd2+ Kf1
3Rq3/2k1r1nq/1pr1nqQ1/r2b3P/3pN1QR/qNbq1P2/1R1n4/3K4 b - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 e4 axb4 g4 f5 g5 fxe4 g6 hxg6 a5 g5 a6 g4 Bh6 Nxh6 Bd3 b3 Bf1 Ng8 Bc4 Nf6 Bg8 Nxg8 c4 e5 h4 g5 a7 d5 h5 Kd7 c5 g3 c6+ Kc7 f3 g4 Ra5 g2 Rh2 e3 Ne2 e4 Nbc3 g3 Ra6 b6 Nb1 b2 Na3 b1N Qc2 d3 Rh4 d4 Rh1 d2+ Kd1 Bb7 Nc3 g1Q+ Ke2 g2 Qb3 Rh6 Nc2 Bb4 Qc4 Qf6 Qd5 Qc1 Ra5 g1Q Qc5 Qgg7 Ne1 d1Q+ Kf1 e2+ Kf2 Na6 Qb5 Qd3 Ra4 Qa3 Rh4 Qh7 Rg4 Nc5 Rh4 Ne7 Nc2 e1R Na1 Ne6 Qf5 Nd2 Qg6 Nf5 Nb3 Nfg7 Ra5 Re3 Rb5 Ba5 Nc1 Re1 Rb2 Bb4 Nb3 e3+ Kg3 e2 Ne4 Bc3 Kf2 Re8 a8Q Re7 Qg8 Rb1 Qg4 Ra1 Qe8 Ba8 Qeg6 e1Q+ Kg2 Kd8 c7+ Kd7 c8R Bd5 Rd8+ Kc7 Ng3 Qee5 Kf2 Qee4 Q6g5 Qeg6 Ne4 Qe8 Q5f5 Qd6 Qgg6 Ra5 Ke1 Qa3 Kd1 Qg5 Nf2 Nc5 Qgf7 Rc6 Ne4 Nce6 Qg4 Qf6 Qfg6
1nBQ4/1rnq1bpq/2qn1q1p/K2R2P1/1Pr5/1Q3Rbq/8/B3R1kq b - - 0 1 legal: proof: b4 b5 d4 a5 f4 e5 a4 bxa4 h4 exf4 d5 Qxh4+ Kd2 Qh2 Nf3 c6 Ke1 cxd5 Nd4 a3 Nd2 a4 N4b3 axb3 Nc4 d4 Nb2 axb2 Kd2 Ke7 e4 Ke6 c4 Ke5 c5 b1N+ Kd3 d5 g4 f5 g5 h6 c6 f3 c7 f2 Qc2 b2 Ra4 f4 Qc5 f3 Ra5 Qg2 Ra2 Ne7 Qb5 Nc3 Kd2 Kf4 e5 Kg3 e6 b1Q Qe8 d3 Qd8 d4 Rg1 Kh2 Qd5 Nb5 Qf5 Nd5 e7 Ra7 e8Q Nd6 Qe3 Be6 c8R Rb7 Qg4 Bf7 Qd7 Nc7 Be2 f1Q Ra5 f2 Ra6 Qc6 Ra1 Qh3 Ra6 f1Q Bb2 Qf6 Bg4 Rg8 Rc1 Rh8 Kd1 d2 Ra3 Qh7 Qb3 Kg1 Ba1 Be7 Rc5 Rf8 Bf5 Rd8 Kc2 d1Q+ Kb2 d3+ Re5 Rg8 Re8 d2 Qd8 Qdf3 Bg4 d1Q Bc8 Qfh1 Ka2 Qdg4 Rd5 Bf8 Re3 Qgd7 Rf3 Rh8 Ra6 Be7 Ka3 Re8 Ra7 Bf8 Raa5 Re4 Re5 Rc4 Rad5 Ndb5+ Ka4 Bd6 Re8 Bg3 Ka5 Nd6 Re1+
4n3/P2BPbnB/1qr2qpp/1NB4p/K1R5/1B3p1b/2Qbr1q1/4k1q1 b - - 0 1 legal: proof: g4 c5 f4 e5 h4 exf4 b4 a5 d4 cxd4 h5 g6 g5 axb4 a4 Ra7 Na3 bxa3 Rb1 Ra5 Rb6 gxh5 g6 Ra6 g7 Ra8 Rg6 fxg6 Kd2 Kf7 e4 Kf6 c4 Kg5 Kc2 d5 Kb3 b5 a5 a2 e5 a1Q c5 d3 a6 d2 c6 f3 c7 Kg4 e6 Kg3 a7 Kf2 Bd3 b4 Rh4 h6 Bc2 d4 Bb1 d3 Ba3 Nc6 Ka4 b3 Qc2 b2 Ne2 d1B Nf4+ d2 Rh2+ Ke1 Ba2 b1Q Bd5 Qaf6 Rh3 Qb6 Bc1 Nce7 Bc4 Nf5 Rh2 Bb4 Ba2 Qd3 Ba3 Qf1 Bc1 Qg2 Bb2 Be2 Ba3 d1Q Nd5 Bc4 Rh4 Bd2 Nc3 Rb8 e7 Bf7 Bd5 Qdb1 Bc1 Qbg1 Bc4 Rb2 Bb3 Ra2+ Ba3 Bce6 Bc4 Qbb6 Bb3 Bc8 Qd3 Rc2 Nb5 Rc6 Rb4 Re6 Qc4 Re2 Qc2 Qfe6 Nd6 Nf6 g8B Ng7 Bh7 Rd8 Rf4 Nfe8 Nb5 Rd6 Rc4 Qf6 Bc5 Bh3 c8B Rc6 Bd7
q1r4B/P3bR1r/1R3pK1/P6n/nB3BQq/b3p1Bq/nn4q1/6kb b - - 0 1 illegal: Other
2nN3K/Pp2b1B1/5PBb/4rQ2/2BNk1rB/1bp1r3/r4qn1/1r1r3b b - - 0 1 illegal: No possible last move
1Bn1RbRn/1Pnb1R1K/3bN1p1/4r3/3RPrpk/3q2p1/1q1p2n1/2B5 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 e5 Kd2 e4 Ke1 fxg6 Qd2 g5 Qd3 g4 b4 exd3 Bg2 h5 Bh3 g3 Bg4 hxg4 Nd2 Ne7 Nb3 axb3 Ra6 Ng8 Ra4 Qf6 Ra1 Qd8 Kd2 Ke7 f4 Kf6 e4 d5 c4 a5 h4 b2 c5 b1Q f5 a4 c6 g6 h5 Kg5 h6 a3 c7 a2 b5 Ra5 f6 Nd7 b6 Ne5 f7 Bd7 c8R Ne7 b7 Qb2+ Rc2 Nc8 Rb1 a1B Nh3+ Kh4 Kd1 d2 Ke2 d1N h7 d3+ Kd2 d4 Rf1 Ne3 Ng5 Nd5 Ne6 Nc7 Rf3 Bd6 f8R Nf7 Re8 Rf8 h8B Re5 Bg7 Nh8 Rf7 Qa3 Rb4 Qb2 Rfe7 Rf4 Rf7 Rd5 Be5 Rc5 Ke1 d2+ Ke2 d3+ Ke3 Bf8 Rc3 d1N+ Kd4 d2 Rc4 Na8 Bb8 Ne3 Ra4 Nc7 Rb4 Rc6 Ke5 Ng2 Rd4 Ra6 Rc6 Ra5+ Rc5 Qe7 Rd5 Qea3 Rc5 Qd3 Rd5 Bb5 Rdd8 Bd7+ Nc5 Bf5 Kf6 Rb5 Ne6 Re5 Nc5 Bd6 Kg7 Bd7 Kh7 Qbc2 Ba7 Bb2 Rg8 Ba3 Rde8 Qb2 Ne6 Bab4 Bb8 Bf8 Rf5 Bbd6 Rf7
2Nr1Qn1/2P4P/p4r1r/5b1N/b4p2/1N1r1b1k/2RnbnNb/2K1Qq2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 g5 b4 e5 f4 h5 Bh3 b5 Ra3 e4 Kd2 bxa4 Rb3 gxf4 g5 axb3 Bg4 hxg4 Ke1 Qc7 Be3 Qd8 Bf2 e3 Qd2 Bb7 Qd1 exf2+ Kd2 Bc8 e4 Ke7 h4 Ke6 c4 f1R b5 d5 g6 f5 b6 b2 g7 a6 e5 g3 h5 g2 h6 d3 b7 d4 c5 f3 c6 f2 c7 Nd7 b8N Bd6 Qf3 Ndf6 Qd1 Qf8 Nh3 g1R Na3 b1N+ Kc1 d2+ Kb2 d3 Qc2 d1B Qc6 d2 Qe4 Rg3 Nd7 Bf3 Qe1 d1B Nb6 Ng4 Kc1 Ba4 Nac4 Nd2 Na5 Bcd7 Rh2 Rd8 Ng1 Rh3 h7 Rh6 Nb3 Bc8 Kb2 Qf6 Nh3 Qf8 Qa1 Rd1 Rg2 f1B Rf2 Bcd7 Nc8 B1e2 Rh2 Nf2 Nf4+ Kf7 e6+ Kf6 e7 Kg5 e8Q Kg4 Ng2 Bf4 Rh3 Bh2 Qe7 Qf7 Qf8 f4 Rh5 Qc4 Rc5 Bf5 Rc6 Qb5 Rc2 Kh3 Qc1 Rd3 Qb1 Rh1 Qe1 Rf6 Kc1 Nh6 Qf7 Rhd8 g8N Qc4 Qf8 Qb5 Nge7 Ng8 Nd5 Rg1 Nge3 Rgg6 Ng2 Qc4 Na7 Rh6 Nc8 Rc6 Nf6 Rcd6 Ne8 Rdf6 Ng7 Qd4 Qh1 Nfe4 Nh5 Qf2 Qd1 Qf1 Qe1 Nf2 Qf7 Bfd7 Qg7 Bf5 Qf8
rr5n/1Qkp1qpq/1pnR4/2P3B1/1n1Nr3/1Pn2b1r/B2P3B/2b2K2 b - - 0 1 legal: proof: e4 b5 a4 bxa4 g4 h5 e5 hxg4 Qe2 f6 Qb5 fxe5 Qb4 e4 Qb6 cxb6 b3 a5 Bc4 a3 Nh3 a4 Bf1 a2 Ng1 axb1N Ra2 a3 Rb2 axb2 c4 e5 h4 e3 f4 e4 f5 e2 f6 g3 h5 g2 h6 Nc6 h7 Nh6 Rh4 Bb7 Kf2 e1N Nh3 g1R Ng5 e3+ Ke2 Ba3 c5 Rg3 Rd4 Rh3 Ne6 Nc2 Rd6 Qe7 Nd4 Kd8 f7 Kc7 f8B Qf7 Be7 N2b4 Bg5 Rhb8 h8Q Nc3+ Ke1 b1Q Bd3 Qc2 Bb2 e2 Ba1 Bc1 Qh7 Qb2 Bb1 Qc2 Ba2 Qd3 Qg6 Qdf5 Qf6 Qh7 Kf2 e1R Qf4 Re6 Kf1 Re4 Qf3 Qfg6 Qe2 Nf7 Qa6 Nh8 Ne2 Na4 Be5 Nc3 Nd4 Qf7+ Kg2 Nd8 Bh2 Bd5 Kg1 Ndc6 Kg2 Rf4+ Kg1 Bf3 Kf1 Re4 Qb7+
2R5/BPp5/b2P2np/2b2rr1/1P1pKb1k/1q3Q1n/1R2Qq1r/N1r3b1 b - - 0 1 illegal: Other
1R5b/B1np2k1/PQR2prn/N2b3p/1K1QP1pP/5p1r/1b6/2q2r1r b - - 0 1 legal: proof: f4 a5 b4 axb4 c3 bxc3 f5 cxd2+ Kf2 e6 Bb2 exf5 Ba3 Na6 Bc1 Nb8 g4 Qe7 g5 Qd6 Bh3 Qf6 Bg4 Qd8 Kf1 fxg4 Nc3 g6 Ne4 Bd6 Ng3 Bf8 Nf5 gxf5 e4 b5 Ke2 c5 Kd3 b4 Kc4 b3 a4 f6 g6 b2 g7 Kf7 h3 b1R a5 f4 Kc3 c4 Ne2 f3 Qe1 d1R Ba3 Na6 Nf4 Nh6 Rg1 Bb7 Bc5 Qc8 Qf2 Rf1 Ng2 Nc7 a6 Bd5 Ne3 Rbc1+ Kb4 c3 Qd2 c2 Rb1 Kg6 g8Q+ Bg7 Bd4 Rce1 Ba7 c1B Rb3 Bb2 Qe6 Rg8 Qc6 Bh8 Qb6 Kg7 Qdd4 Rb8 Rg2 Rh1 Nc4 Ref1 h4 Rh3 Qb5 Rb6 Rg1 Rc6 Na5 Rcc1 Rg2 Rfh1 Rc3 Rcf1 Qbc5 Nf5 Rh2 h5 Qb6 Nh6 Rc1 Ne6 Rb1 Qc1 Rc2 Nc7 Rc6 Kh7 Ra1 Rg6 Ra3 Kg7 Rac3 Na8 Rc8 Nc7 Rb8 Bf7 Rc5 Bd5 Rc6
n2qn1Rr/K2bbr1N/R5Nb/5R1n/P7/3nPbqr/1rQP4/1k3b2 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 g5 Qa4 dxc6 Qb3 c5 Qd1 c4 h4 gxh4 a4 b3 e3 b2 Na3 bxc1Q Bd3 Qb2 Bb1 Qxb1 Kf2 Kd7 g4 Kd6 g5 Ke5 g6 Ke4 g7 Kd3 Nb5 c5 Rh2 h5 Ra3+ c3 Na7 b5 Ra1 f5 Qf3 Kc2 Rg2 b4 Rg3 h3 Qg2 c4 Qh1 h2 Qc6 h1N+ Ke2 b3 Nb5 h4 Kf3 h3 Qc5 b2 Qc7 h2 Qe5 Bd7 Rh3 Qe1 Qf6 b1R Qh6 Na6 Ne2 Nc7 Rh5 Rb2 Nc1 Nf6 g8R Ng3 Ra3 Nfe8 Rg6 Kb1 Nd3 c2 Rh4 c1N Nb4 c3 Qg7 c2 Nd5 Nd3 Rf6 c1B Rb3 Nh5 Qg6 Bh6 Rg4 h1B+ Rg2 Rc8 Nd4 Na8 Ne6 Qg3+ Ke2 Rc5 Ng5 Ra5 Rbb6 f3+ Kd1 f4 Nh7 f2 Ke2 f1R Ne7 Rf5 Ra6 Rf3 Rf8 Rf6 Qe4 Rf7 Ng6 Rb5 Rg8 Ba3 Rf2 Be7 Qc6 Rb2 Qc4 Qg1 Qc5 Rh3 Qc2+ Ka2 Rf3 Qg3 Qc4+ Kb1 Rf2 Nc5 Qc3 Ne6 Kd3 f3 Kc4 Nef4 Kd4 Nd3 Kd5 Bc8+ Kc6 Bg2 Qb3 Bd7+ Kb7 Bh1 Ka7 Bg2 Re2 f2 Qc4 f1B Rf2 Bd5 Rf5 Bf3 Qc2+
K3k2r/1rNbrq1P/Pr3n2/bbP5/2pNN3/1rb5/1B1R4/nb1n2R1 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 c5 a4 e5 g4 exf4 d4 cxd4 Bg2 h5 Qd3 hxg4 Qa3 bxa3 c5 b6 Bd5 b5 Bc4 bxc4 Kf2 d5 e4 g5 h4 f5 e5 g3+ Kf3 d3 h5 d4 a5 g2 h6 a2 h7 g4+ Kf2 d2 a6 d1B e6 d3 e7 f3 Ke3 f2 Rh6 f1R Nf3 g1R Ng5 d2 Nf3 g3 Ne5 g2 Nc3 f4+ Ke4 f3 Nc6 f2 Ne2 Qd5+ Ke3 Re1 Rh1 f1B Rh3 Bh6+ Kf2 Bd7 Ne5 Nc6 Kg3 Na5 Nc3 Bd3 Rh4 Nb3 Rd4 Ra7 Nb1 Nf6 Re4 Qf7 Ba3 Rgf1 Bc1 g1R+ Kh4 Rg3 Nc3 Rge3 Rb1 Na1 Rd4 B1a4 Nc6 Re6 Kg3 Rf3+ Kg2 Bb5 Bb2 Rd6 Rc1 Bb1 Rd5 Ree3 Rg1 d1N Rd3 Bf4 Nd4 Rde6 Rd2 Bc7 Nce2 Rh3 Ng3 R3e4 Kf3 Ba5 Rf2 Re1 Rd2 Rb6 Kf4 Ree6 Ne4 Rb3 Kf5 Qg8 Kf4 Kf7 e8N Re7 Nc7 Qf8 Nce6 Ke8 Ke5 Nh5 Kd5 Qf7 Nc6 Nf6+ Kd6 Ra8 Kc7 Rab8 Ncd4 Nc2 Bc1 a1B Ba3 B1c3 Bb2 Ra8 Rgg2 Na1 Rg1 Rc6+ Kb7 Ra7+ Kb8 Rb7+ Ka8 Rcb6 Nc7+
2n1q2N/npr1R1KP/3pk1nB/1b1Rp1qP/r5P1/4Rb2/4q3/b1B4b b - - 0 1 illegal: Other
1nnqn1q1/1PbbQP2/3r1k2/1n3b2/R2p2RP/3r4/1b2QbK1/B2Q2b1 b - - 0 1 legal: proof: f4 b5 b4 f5 d4 g5 e4 c5 a4 cxd4 g4 bxa4 Nh3 fxe4 Bc4 h6 Bb3 axb3 f5 Kf7 Nd2 Ke8 Nf4 gxf4 Nf3 h5 g5 Nc6 Ne5 Nb8 Ng4 hxg4 Kf1 Kf7 c4 d5 h4 a5 c5 e5 b5 e3 f6 a4 c6 d3 b6 e2+ Kf2 e1B+ Kg2 f3+ Kg1 g3 b7 d2 c7 d4 Qc2 d1N Bb2 f2+ Kg2 f1N Rh2 a3 Qd3 e4 Rh3 a2 Bc3 e3 Kf3 g2 Qd2 g1B Qc1 b2 Rb1 a1B Ba5 e2 Rg3 Nd2+ Kg2 Rh6 Qc6 Nc4 Bb6 Nd6 Qc2 Ne8 Rg4 Bd7 c8Q Ra3 Qd2 Rd3 Qcc2 Bd6 Bc5 Bc7 Qe3 Bef2 Bb4 e1Q Qee2 Nc3 Qcd1 Nb5 Bc3 Ne7 Rc1 Kg6 f7 b1B Bb2 Kg7 g6 Nc8 Rc4 Kf6 g7 Qd2 g8Q Qg5 Qf8 Qg8 Bc3 Bb2 Ra4 Rd2 Rg7 Bbf5 Rg4 Rd3 Qa3 Bc1 Ba1 Bb2 Qed2 Ke5 Qab4 Rd6 Q2e2+ Kf6 Qc5 Rb6 Qf8 Rd6 Qfe7+
nR2q1br/n3R1q1/PP1b4/p2R1K2/2p1R3/1Q1n1n1r/3nk1NP/1b1r4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 b5 dxc4 Bb2 e5 Bc3 exf4 Bb4 axb4 a4 c3 e3 Be7 a5 Bc5 Na3 Bf8 a6 b3 Nc4 b6 Na5 bxa5 Bd3 Bc5 Bb1 Bf8 Ba2 bxa2 Ke2 Ke7 d4 Kf6 Kd3 Kg5 Ke4 c5 d5 f5+ Ke5 f3 e4 f4 b6 c2 d6 c1N d7 g3 Qf1 Kg4 Qe2 g5 Qg2 c4 Rb1 a1Q+ Ke6 f2 e5 f1B Rb5 f3 Rb2 f2 Ne2 Ne7 Qh3+ Kf3 Rb1 g4 Rg1 Qe8 Qh5 g2 Qh7 g3 Qg7 Nd3 Nc1 Nd5+ Kf5 Rh3 e6 Bd6 d8R Nc6 Qg8 Nc7 Rb2 Na7 Rc2 Qg7 Nb3 Be2 Qh7 f1N Na1 Nd2 Rd1 g1N Qh8 Bb7 e7 g2 Rb8 Bd5 Qh4 Bf1 Qg3+ Ke2 Rb2 Nf3 Nc2 g1R Ne3 Bg8 Ra2 Qa4 e8R Rh1 Re7 Qe8 Rb2 Bg2 Rb5 Rf1 Rdb1 Rd1 Rd5 Bh1 Rb7 Rc8 Rb8 Na8 Rbb5 Nfe5 Rd4 Bb7 Rbd5 Nef3 Rde4 Bc6 Qh4 Ba4 Qf6 Bc2 Qc3 Bb1 Reb7 Rc7 Qb3 Re7 Rd7 Re6 Rdb7 Reh6 Rbe7 Rh8 Ng2+
1R1Q2Nq/3P2r1/K1N1bb2/1NP3qP/b3pbNq/kpb1nqr1/n7/8 b - - 0 1 legal: proof: b4 a5 g4 axb4 c4 d5 a4 c5 e4 h5 e5 hxg4 Ba3 bxa3 Ra2 f6 Rb2 fxe5 Rb4 cxb4 c5 e4 Bc4 dxc4 Ke2 Kd7 h4 Kc6 f4 g5 d4 e5 h5 b5 f5 e3 f6 e4 f7 g3 a5 c3 a6 c2 a7 c1B Rh4 b3 Rh2 b2 Qd3 b4 Rf2 g4 Rh2 g2 Nf3 g1Q Ne1 a2 Rh4 a1B Nd2 b1B Nc2 g3 Nf3 g2 Nh2 Rh7 Qb3 Kb5 d5 Bc3 d6 Nf6 Rh3 Qh1 Rf3 g1Q Qe6 Ka4 Rf4 Rg7 Na1 Bc2 Qd7+ Ka3 Ng4 Be7 f8N Na6 Nh7 Qh8 Nb3 Nd5 Qd8 Be6 d7 Bef6 Na5 Ba4 Nc6 b3 Rf5 Rc8 a8N Nab4 Nc7 Na2 Rf2 Qg3 Rg2 Qf4 Rg1 Qg5 Rf1 Be7 Nhf6 Qhh4 Ng8 Bef6 Rd1 Rb8 Rd4 Ra8 Rb4 Ra6 Kf1 e2+ Kg2 e1Q Rb8 Qee3 Nb5+ Kb2 Kf1 Qeh3+ Ke2 Bf4 Qf8 Ne3 Qe7 Bce5 Kd2 Qf3 Qd8 Nc1 Nbd4 Ka3 Kc3 Na2+ Kd2 Qf5 Nce7 Bc4 Nf2 Rg3 Ng4 Bg7 Nh2 Rb6 Ng4 Rg6 Nec6 Bgf6 Nb5+ Kb2 Qa5 Rg7 Qb6 Be6 Qd8 Nc1 Nbd4 Ka2 Kc3 Qfg5 Kb4 Kb2 Ka5 Ka3 Ka6 Na2 Nf5 Bd4 Nd6 Bc3 Nb5+
6b1/2k1nP2/4nRRp/1KpP3n/1P1b2q1/1n1rq1p1/r2RRBp1/1N4q1 b - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 dxc4 g5 e5 g6 fxg6 d5 g5 Qd3 g4 Qd4 exd4 h4 h5 Bh3 g3 Bg4 hxg4 h5 g2 h6 Ne7 h7 Qd7 Nd2 Nbc6 Ne4 Nb8 Ng5 Qd8 Nf7 Ng8 Nh6 gxh6 Kd2 Kd7 b4 a5 e4 c5 f4 c3+ Kd3 a3 Kc4 g3 f5 a4 e5 a2 e6+ Kc7 e7 c2 e8R a3 f6 d3 Be3 c1N Ne2 d2 Rh5 d1Q Nf4 Nc6 Ne2 Nb3 Ree5 Bg7 Rhf5 Nce7 Rb1 a1N Rf4 a2 Ng1 Be6 Bc1 Qe8 Bd2 Nc2 Re3 a1Q Be1 Ra3 Re2 Ncd4 Rbb2 Ra2 Red2 Qg4 Bf2 Bf7 Re2 Ne6 Rbd2 Qd1 Nf3 Qg1 Rdd4 Rd2 Rf5 Rd3 Nd2 Qa4 Nb1 Qa3 Kb5 Qac1 Rf3 Qe3 Ka6 Bg6 f7 Nf6 Kb5 Nh5 Rf6 Ra8 h8R Ra2 Rd8 Bh7 Rg8 Bh8 Rgg6 Bg8 Rc4 Bg7 Rcc2 Bh8 Rcd2 Bg7 Rf5 Bd4 Rff6
5b1r/6p1/1Rnqp1p1/r3QbP1/p1q1BP1b/4P1P1/p1Q1kBK1/2r4n b - - 0 1 illegal: Other
3n2b1/2P4r/1p2pnP1/1p2p3/1RPQ1kPn/1r2q2Q/2KB1b2/1rb2Q1q b - - 0 1 illegal: Other
n1R5/q2Rr2b/nb1Qn1n1/nNr5/r4bb1/3Bpk2/3Rp1B1/1NN1K1B1 b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 g4 Kf7 c4 Ke6 f4 d5 g5 Kf5 c5 b5 g6 e5 g7 h5 c6 e3 c7 Ke4 f5 a2 f6 d3 f7 e2 Nh3 d2+ Kf2 b4 Qe1 d1N+ Kg2 b3 Qc3 d4 Qc4 b2 Qa4 Ne3+ Kf2 Qe7 Rg1 Na6 Rg5 Nd5 Rg1 Bg4 c8N Ndc7 Na3 b1B Qd7 d3 Nf4 h3 Nc4 d2 Na3 d1N+ Ke1 h4 Na7 h2 Nc6 h1R Ne6 h3 Bf4 h2 Bg3 Nb2 Qd4+ Kf3 Kd2 e4 Nc2 e3+ Ke1 Rh5 Qa7 Rc5 Na5 Nc4 Na3 Bh7 Nb3 Na5 Rd1 a1B Nc1 Be5 Nb1 Bf4 Qb8 Ra7 Rd4 Na8 Bf2 Qb7 Nc7 Ne7 g8B Ng6 Rd3 Qb6 Nb5 Re7 Rd1 Qa7 Rd2 Bg7 f8R Bd4 Rg2 Rg1 Qe5 h1N Rc8 Ng3 Qd6 Nh5 Bc4 Ng7 Bd3 Ne6 Rh2 Rg3 Bg1 Rh3 Rh1 Rhh5 Rh4 Rc4 Rh1 Bb6 Rh2 Rhc5 Bg2+ Kg3 Rh5 Ra4 Rf5 Rd4 Rf7 Ra4 Bf1 Kf3 Bh3 Re8 Rd7 Re7 Bg2+
3qqB2/1n5b/3r1p2/2BRBQN1/1b1K1p1n/1b2Rrb1/n1NkRN2/1b1n4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Be4 f5 Bc2 f4 Bb3 cxb3 Kf2 Kd7 d4 Kc6 h4 Kd5 a4 Ke4 h5 c5 d5 b5 h6 g5 h7 g3+ Kf1 b2 d6 f6 e3 g2+ Kf2 b3 a5 c4 a6 c3 a7 g4 d7 c2 Ra5 b4 Ra1 g3+ Ke2 Ne7 Ra5 Nf5 Rh2 Nc6 Rd5 Nh4 Kd2 Na5 Rh1 Nb7 Na3 b1B Qg4 b2 Nh3 b3 Kc3 g1Q Qf5+ Kf3 e4 Ke2 e5 g2 e6 Bb4+ Kc4 Qe3 e7 g1B e8R Bh2 Nf2 Bg3 Re4 Re8 h8B Re6 Bg7 Rd6 Bf8 Ba2 Rf1 b1B Bb2 c1N Nc2 Rb8 Bd4 Kd2 a8N Qe1 Re3 b2+ Rb3 Qee7 Re1 Qee8 Nc7 Ra8 Ne6 Ra7 Kb5 Ra3 Rbe3 Bb3 Ng5 Na2 Re4 Ba4+ Kc4 Rf3 Re6 Ng6 R6e3 Nh4 Na3 Bac2 Bc5+ Bd3+ Kd4 Bc4 Qh3 Bb3 Qg4 Bh7 Nc2 b1N Qh3 Nbc3 Qf5 Qa5 d8B Nd1 Bdb6 Bd7 Ba7 Qad8 Bb8 Bb5 Bc7 Bd3 Bb8 Ra6 Be5 Rd6 Na3 Bb1 Nc2 Ra6 Rc3 Rb6 Rce3 Rd6 R1e2+
2R4N/3qnnpr/B3rN2/KnbR2R1/1pb1nr2/p4Q2/n1Br3k/4N2B b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 g4 a5 d4 axb4 g5 cxd4 Ba3 bxa3 g6 hxg6 Bh3 g5 Bf1 g4 Kd2 Ke7 h4 Kf6 e4 Ke5 c4 b5 h5 d5 h6 f5 a5 f3 c5 Kf4 a6 Kg3 c6 f4 a7 f2 c7 d3 Kc3 b4+ Kb3 d4 Ka4 d2 h7 f3 e5 d3 e6 Qd7+ Ka5 Nc6+ Ka4 Nce7+ Ka5 Ba6 c8B Nh6 Rh5 Nf7 Be2 f1R Rh2 f2 Ra2 Bc4 Bb7 Re8 Qc2 d1N a8R d2 Qf5 Nc3 Nf3 d1N Rc8 Nb5 Nbd2 Ndc3 Rh5 Rd1 Rc2 f1N Rg5 Na2 Ne1 Kh2 Ne4 g3 Qf3 g2 Nf6 g1R Rd2 Rg4 Rdd5 Rd2 Bd3 Ng3 Bc2 Ne4 Ba6 Rg8 h8N Rf4 Ka4 Nf5 Ka5 Bc5 Ng6 Rh8 e7 Rh7 Nh8 Rd8 e8B Ne7 Rc7 Rb8 Rc6 Rb6 Rc8 Nfd6 Bg6 Nf7 Bf5 Rc6 Bh3 Rd6 Bg2 Re6 Bh1
4BR2/Q1rQN3/3nk3/1N2p1R1/BK2br2/QR1bb1b1/r3q1n1/r4r1r b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 c5 d4 cxd4 b5 f5 Bd2 fxe4 Bb4 axb4 a5 b6 Qf3 bxa5 Qd1 a4 Rh3 b3 Rh1 b2 Na3 b1Q Nxb1 a3 Kd2 Kf7 f4 e5 c4 d5 g4 h5 f5 h3 b6 e3+ Kd3 e2 b7 e1B f6 a2 g5 h2 c5 h4 c6 h3 c7 Ne7 Nd2 Nbc6 b8R Na7 Rb4 Ba6+ Nc4 Nac8 g6+ Ke6 g7 Nf5 Rb8 Ne3 Qb1 Bc5 Qb3 Rh4 Rb1 a1R f7 Bb5 f8Q R8a2 Qa4 Rf4 Nf3 Bb6 Rg1 h1B Qa7 h2 Rg5 Bg3 Nd2 Ba6 Qa3 Be4+ Ke2 h1R Rb3 Ng2 Ra8 Bc2 Nb1 d3+ Kd2 Be3+ Kc3 d2 Nb6 d1R Bb5 d4+ Kb4 Be4 Nd5 d3 Nbc3 d2 Ba4 Rdc1 Ne7 d1R Rb8 Bf1 Nb5 Qd3 Ra8 Nd6 g8B+ Rf7 Bh7 Rf4 Bg6 Be2 Bh5 Rdf1 Rf8 Qd1 Be8 B2d3 Rh8 Qe2 c8Q+ Kf6 Qc6 Ke6 Rf8 Rcc2 Qcc7 Rc3 Qd8 Rc7 Qd7+
1qQ1q3/1nqbr2n/n1r2N1q/1R1p1B2/1N2B3/2RQ1R2/2Q1np1q/3K1k2 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nd2 exf6 Nb1 f5 Qd2 f4 Qd3 Qe7 Qd1 Qd8 h4 gxh4 Bd2 b3 Ba5 b6 a3 Bb4+ axb4 bxa5 b5 Kf8 Ra2 Ke7 Ra1 Ke8 c4 Ke7 g4 Ke6 e4 Ke5 b6 f5 b7 h5 c5 d5 c6 h3 g5 a4 g6 d3 g7 Kd4 e5 Ke3 e6 h4 c7 a3 e7 f3 e8B f4 Bh5 a2 Ne2 b2 Bf7 h2 Nec3 h3 Qc1+ d2+ Kd1 Kf2 Ne2 Bd7 c8R Qe8 Qc6 Rh7 Qc4 Ra6 Qc1 Rc6 Qc2 Nf6 g8Q Na6 Bg6 Re7 b8Q Nh7 Rg1 h1Q Bd3 h2 Na3 b1Q+ Nc1 Qb5 Qa8 Qb8 Rb1 a1N Rg6 Nb3 Rf6 Nbc5 Nb5 Nb7 Nc7 Qg2 Rb3 h1Q Na2 Qh6 Nb4 Qgh2 Bg2 Kg1 Qg4 f2 Qh3 f1N Bf5 Ng3 Bge4 Ne2 Qhd3 f3 Rf8 f2 Rb1 Qf7 Ne8 Kf1 Nf6 Qe8 Rb3 Rd6 Rc5 Rc6 Rb5 Qbc7 Qc8 Qb8 Qb1 Qhc7 Rc3 Qhh2 Kc2+ d1Q+ Kb2 Qhh5 Rg8 Qhh2 Qbc2 Rc5 Rg3 Qd2 Rh3 Rc6 Rf3 Qdh6 Kb1 Kg1 Kb2 Nf4 Kc1 Ne2+ Kd1 Kg2 Qb1 Kf1 Qbc2
3q1Br1/2R1bqqk/2NQ1Q2/b1q4n/2QrR3/BK1p3p/1Nr3b1/6bR b - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 e5 e3 exf4 a3 a5 Bc4 axb4 g4 f5 Nc3 f3 Ba2 b3 Nb1 bxa2 h4 Qxh4+ Kf1 f4 Rh3 Nc6 Rh1 Qh2 Ke1 Nce7 Qd2 Nf5 gxf5 Ne7 Qd1 Ng8 c4 Kf7 c5 b5 f6 Kg6 c6 d5 e4 h5 f7 f2+ Kd2 f1R+ Qe2 d3 Kc3 h4 a4 b4+ Kb2 f3 e5 b3 e6 d2 e7 d1Q e8R h3 c7 d4 a5 f2 a6 Qe5 a7 Be7 f8B Nf6 Bd2 Bb7 c8Q Bg2 Qcc4 Rg8 Nf3 Kh7 Bb4 g5 Rb8 g4 Qe6 g3 Qg4 Qc5 Qe5 Nh5 Ka3 b2 Rb5 Rd8 Nbd2 b1Q a8Q Qg6 Qad5 Qg7 Rc1 a1B Qf6 Bc3 Ne5 Rg1 Qgh4 f1Q Ndc4 Qf4 Qfd6 Qff7 Qhf6 Rf1 Rb8 Rf2 Nc6 Rc2 Kb3 Qd3 Ba3 Ba5+ Ka4 Qd2 Kb3 d3 Rce1 Qdg5 Nb2 Qh4 Qc4 Qhg5 Qc7 Rd4 Rc8 Qgd5 Re3 Qd8 Qcd6 Be4 Nb8 g2 Rc7 g1B Nc6 Bg2 Re4
2n2R2/1Bq5/2b4B/1nR1p1r1/1b1k1b2/3p1p2/N2RQKbQ/q1nB1bN1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 f4 b5 e3 e6 a3 bxa3 f5 Ra6 Ne2 e5 Ng1 Re6 fxe6 dxe3 g4 Ke7 c4 d5 c5 f5 g5 h5 c6 Kd6 c7 Kc5 e7 b4 e8R d4 g6 h3 g7 b3 Re7 e2 Rd7 h4 Kf2 e1B+ Ke2 d3+ Kf3 a2 Bg5 f4 Bf6 b2 Qe2 h2 Nh3 Bd2 Rf7 Ne7 g8Q Nbc6 Ng1 h3 Rh7 Kd4 Bg7 Na5 Qb3 Rg8 Qb5 Nb3 Qb8 Nc1 Bh8 Rg5 Nc3 b1N Kf2 Na3 Qb2 Nb5 Bg7 f3 Bh6 Bb7 c8B Bc6 Ba6 Qc7 Rf7 Nc8 Bb7 Bb4 Rf8 Bf4 Rb1 a1Q Na2+ Kc4 Qbd2 Kd4 Rb2 Qf7 Qe4+ Kc5 Ne2 Qc7 Qe1 Nb3 Qf5 Kd5 Rd2 Kc5 Rg1 h1B Qf7 h2 Qh5 Bg2 Qh4 h1B Qh2 Bh3 Rg4 Nc1 Ng1 Kd5 Be2 Bf1 Bd1 Bhg2 Qe2 Bg3+ Ke3 Kc5 Rc4+ Kd5 Rc3 Bf4+ Kf2 Kd4 Rc5
1Qb3K1/5N1r/5B1r/b2QB1nb/4nqB1/1n2rq2/Q1Rqk2b/1r2n1RN b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 Ke7 e4 Kd6 c4 Kc5 h4 g5 h5 d5 h6 f5 e5 b5 e6 f3 Kg3 f2 e7 a2 e8Q f4+ Kh2 b4 h7 g3+ Kg2 b3 Kf3 d3 Qg6 Kd4 c5 g2 c6 b2 c7 d2 Qa4+ Bb4 Qd6 d1B+ Ne2+ Kd3 Qe5 g1B Qee8 g4+ Kg2 f3+ Kg3 d4 Kf4 g3 Ke5 g2 Bg5 Ra7 Qh5 Nc6+ Kf4 Ne5 Qhe8 Nf7 Qe6 Ba5 Kf5 Bh2 Kg6 g1N Kg7 Nf6 Qac6 Ne4 Bh4 Nfg5 Bh3 f1R Qe5 f2 Qed5 Re1 Qa8 f1Q Na3 b1R Nb5 Qf4 Ng3 N1f3 Nd6 Re3 Rg1 Ne1 Nh1 Bh5 Nf7 Ke2 Be6 d3 Bg4+ Nef3 Rc1 d2 Rc2 Ra6 Qa7 Rh6 Qb8 Rb5 Rb1 a1N Rg1 Rb1 Qb2 Nb3 Qa2 Re8 h8B Re7 Bg3 Qd7 Kg8 Qdd6 Be6 Ne1 Bf6 Qf3 Bg4 Qf4 Nd6 Reh7 Nf7 Bf5 c8Q Be6 Qa1 Bf5 Qb8 Bc8 Rc7 d1Q Rc2+ Qd2 Qa2 Qf5 Bd6 Qf4 Bde5
r4N1B/1bQrRr1Q/2qQ4/3NB3/1r2pRR1/1nb2kq1/1n1bq3/3r1n1K b - - 0 1 illegal: No possible last move
2qrBq2/1qBRnR2/2n3B1/r2N1p2/2K1b3/1QN1r2q/2qQ1R2/b3q1nk b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kd2 Ke7 Kd3 Ke6 e4 Ke5 c4 b5 g4 h5 c5 d5 c6 h3 c7 f3 g5 b4 g6 f2 g7 h4 Bg5 h2 Nd2 a2 Qf3 h3 Qh5 b3 Rc1 a1R Qh4 b2 Bg2 b1Q+ Rc2 f1Q+ Ne2 Qb7 Qh5 R1a3+ Rc3 R8a5 Qh7 Nc6 Qh4 Nge7 g8R Bg7 Qe1 Bf5 Qa1 Qdc8 Rg1 h1N Qd1 h2 Be3 Ng3 Bh3 h1Q Rd8 f6 Bg4 Qhh3 Rd7 Rd8 Qb3 Qf3 Nf4 Ne2 Rg2 Ng1 Nb1 Qf1+ Kd2 d3 Bh5 d4 Nd5 Qf4 Bg6 Qfh6 Kc1 d2+ Kb2 d1Q Rf2 d3 Bb6 d2 Rcf3 Qe1 Kc3 d1Q+ Kc4 Qc2+ Nbc3 Qh8 Rf4 Qf8 R4f3 Ke6 e5 Be4 Rd3 f5 Rd4 Ng8 Rf7 Nge7 Rdd2 Kd7 e6+ Kd6 Rd1 Ke5 Rd3 Qcb8 c8Q Bf6 Qd7 Q8c8 Nb4 Bg7 Rd6 Bh8 Bc7 Bf6 Rg2 Kf4 Rf2+ Kg3 Nd5 Be5 Rf4 Kg2 Rf3 Ng8 e7 Kh1 e8B Nge7 Rf2 Qcb1 Ne2 Ba1 Nec3 Qc2 Qe6 Qb2 Rd7 Qc2 Qd6 Ra2 Qb5 Qcd1 Ne3 Re2 Qd2 Qc2 Nd5 Re3 Qb3
1r1bQr2/2pB2r1/Q3b2N/2Rbb1n1/q3k2n/2RBn1qN/B6n/1RKn4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 Ke7 a4 Ke6 e4 Ke5 d3 b5 Kd2 f5 h5 g5 a5 c3+ Kc1 c2 a6 b3 h6 b2+ Kd2 c1B+ Kc2 f4 h7 b4 a7 g2 Nc3 b1N Ra6 g3 Rhh6 f3 Ra1 f2 Rha6 g4 Nge2 g1Q Rh6 g2 Ra4 g3 Rg6 Be6 Rg7 Qh4 Ra1 Nh6 Nd4 Ng4 Rf7 Nd7 Qe2 Nc5 Nd1 Bf4 Nf5 Rb8 a8B Nh2 Bd5 Nc3 Ba2 Be7 Rb1 Rhf8 h8R Bd8 Nh6 b3+ Kb2 Kd4 e5 N5e4 Rf5 Ng5 Rg8 Bd5 e6 Be5 e7 Qg4 Kc1 b2+ Kd2 Be6 e8B Bd5 Bd7 Be6 Ne3 Nd1 Nd5 Qe4 Nf4 Qc6 Ng6 Qa4 Nf4 Bd5 Nh3 Be6 Rc1 b1B Rc3 Bc2 Rg6 Bcb3 Kc1 Kd5 d4 Bc4 Qd2 Ke4 d5 Bb3 d6 Bbd5 Bfc4 f1N Qe2+ Nfe3 Rg7 Qe1 Qf1 g1N Bd3+ Kd4 Qe2 g2 Rf1 N1f3 Rg8 Nf7 Rg5 g1R Rf2 Bc6 Bdc4 Ke4 Rf1 Bdf6 Be8 Nh4 d7 Bf4 Rc5 Rg7 d8Q Bcd5 Bd7 Qg3 Kd2 Nf2 Qe8 B4e5 Rb1 Ng5 Kc1 Nd1 Qf1 Bd8 Qf6 Bg4 Qa6 Bge6 Bd3+
3r1b2/3R1R2/1KQ1n1Bb/2N1krq1/4qnbq/n1r1B2B/1Q1Qp1N1/2r3q1 b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 Kd2 Kf7 g4 Kf6 c4 d5 f4 b5 c5 e5 c6 h5 c7 b4 f5 a2 Bd3 e3+ Kc2 h3 Kb3 e4 g5+ Ke5 g6 h4 g7 h2 f6 h3 f7 e2 Nd2 e1B Bb5 d3 Bc6 d4 Kc4 b3 Kb5 b2 Nb1 d2 Qg4 d1Q Nd2 b1N Kb6 d3 Nb3 e3 Ne2 d2 Ba4 Na6 Bc6 Qg5 Bb5 Nc5 Qd7 Ne6 Rg1 h1Q Bc4 h2 Rf1 Nf6 g8B Na3 Bh7 Nh5 Qa4 Qe4 Bg6 h1Q Qb4 Nhf4 Nc5 Rh3 Rb1 Bh6 f8Q a1R Qd8 Ra5 Rf2 Bd7 c8Q Rf3 Rb2 Qhh4 Qc6 Bc8 Rf1 Bg3 Rf2 Qg1 Qd3 d1R Rd2 Bh2 Qc2 Rh3 Rd7 Rd6 Bd2 Rc1 Qcb3 Rd3 Qb2+ Rdc3 Bd3 Rf3 Bf5 Ra8 Bh3 Bf8 Ng3 e2 Nf5 Bg3 Ne3 Bh6 Ng2 Bf8 Rd4 Bd7 Rf1 Rd8 Be3 Be1 Rf2 Bd2 Bb1 Nc7 Rd6 Bg4 Rd7 Nce6 Rf1 Qd5 Bg6 Qe4 Bf7 Nd3 Bg6 Rf5 Rd1 Ndf4 Rf7 Be1 Rd6 Bd2 Rdd7 Qe7 Qbb5 Nh5 Bf2 Bdh6 Qd3 Nhf4 Qdd2 Qeg5 Be3
4bQ1K/rR2rB1b/4RR1n/b1b1N1N1/4Nr2/qrnn4/1kp1B3/2r2rQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 Ke7 e4 Ke6 Ke2 Ke5 Ke3 c5 a4 b5 a5 g5 h5 f5 d3 c3 a6 f4+ Ke2 Kd4 a7 g2 e5 g3 Kf3 c2 e6 c1R Kg4 c4 Kf5 c3 Kg6 g4 h6 f3 e7 f2 e8N b3 h7 b4 Qe2 b2 Nc7 b3 Nd5 Bd7 Nc7 Nh6 Ra4+ Bb4 Kg7 Qf8+ Kg6 Nc6 Qe1 Ne5+ Kg5 Be8 Ra6 Ba5 Nd2 b1R Ne4 b2 Rf6 Qa3 Be2 Rf8 h8R f1R Rh7 Rf4 Re7 Rf7 Ree6 Re7 Rh4 Rd8 a8B Rdd7 Nh3 g1N Nd5 g2 Nb6 g3 Nc4 Ra7 Bd5 Nd7 Ne5 Nc5 Qd2 Rcf1 Qd1 Rc1 Qe1 b1B Ba2 Bc2 Rg4 Rb1 Qc1 Rb3 Qe3+ Kd5 d4 Nd3 Rh4 Ng4 Rh7 Nh6 Rhf7 Rc1 Kg6 Rcf1 Bh5 Ne2 Kg7 g1R Kh8 g2 Nhg5 Rc1 Qg3 Rgf1 Qh2 g1B Rh7 Be3 Qg1 Bb1 Rhf7 c2 Rg7 Nc3 Be2 Bf2 Ng6 Kc4 d5 Bfb6 d6 Bc5 d7 Rf7 Rd6 Nd5 Ng3 Kc3 Qg2 Kb2 N3e4 Rb4 d8Q Ba4 Bd1 Nc3 Qf8 Be8 Ne5 Rb5 Be6 Ba2 Be2 Bd5 Rc6 Rb3 Qg1 Rfc7 Bg8 Bdf7 Ra6 Bg6 Rae6 Bh7 Rge7 Rd7 Bf7 Rdb7 Rb6 Rd7 Ree6 Re7 Rb7
nnK1Q2Q/2bn1Q2/Nb1b1R1r/Rq1B1N2/2n2b2/rbBNp3/r4r1k/8 b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 g4 h5 e4 fxe4 a3 bxa3 Kd2 hxg4 Ke2 Nf6 Ke1 Ng8 Kd2 Kf7 f4 Kf6 c4 Kf5 h4 e5 c5 g5 c6 d5 c7 b5 h5 b4 h6 d3 Ke3 a2 h7 b3 Ba3 b2 Nd2 b1N Qb3 d4+ Kf2 e3+ Kg3 e4 Nc4 e2 Be7 e1B+ Kg2 g3 Kh3 g2 Bb4 g4+ Kh2 d2 Be7 d1R Nb6 g3+ Kh3 d3 Qc3 d2 Ne2 g1B Bf6 g2 Bd4 Na3 Nd7 Nf6 Bb6 Bd6 Qc4 Qe8 Qf7 Nc4 Ba5 Bh2 Bc3 g1B Bg2 Bb6 Rf1 e3 Bc6 Beg3 Nc5 Ra3 Na6 Be6 Bd5 Qb5 c8N Rf8 Qe8 Nfd7 h8Q Rc1 Rf3 Rh1 Nc1 d1N Nd3 Ndb2 Rff1 Bdc7 Rf2 Bf7 Rff1 Na4 Nd6+ Kg6 f5+ Kg5 f6 Bf4 Nf5 Be6 Rad1 a1R f7 R1a2 Ra1 Bfd6 Nf2 Kf4 Kh4 Rg8 f8Q Rg2 Kh5 Bg3+ Kg6 Rh6+ Kg7 Bg8 Nd3+ Kg4 Qef7 Kh3 Q8e8 Kh2 Rf3 Rgf2 Rf4 Nf6 Rf3 Bdf4 Kf8 Nfd7+ Ke7 Bd4 Ndb4 Nab6 Nd3 Bcd6+ Kd8 Na8 Kc8 Bb6 Qg6 Be6 Qgf7 Bdc7 Nh4 Bfd6 Rf6 Bgf4 Nf5 Na5 Bb7 Bb3 Bd5 Nc4 Rb1 Ba4 Rb4 Bd1 Ra4 Bb3 Ra5
1Bk2N2/n5nK/1R2bbr1/5p2/B1n5/rb3qq1/bQ1rrNQ1/Q2RB2n b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 f5 e4 g5 h4 b5 c4 d5 h5 Kd7 c5 f3 Kg3 f2 e5 d3 h6 d2 h7 b4 Rh2 a2 Ba6 f1N+ Kg2 d4 Bd3 b3 Be4 g3 Kf3 g2 Bb2 d3 Ne2 g1Q Nd4 g4+ Kf4 g3 Qe2 d1R Qf3 g2 Rh4 d2 Bc2 Nc6 Qg3 Na7 Rh6 Be7 Ne6 Nf6 Kg5 Re8 Kg6 Nh5 h8B Ng7 Nc3 Bf6 Ne4 Qh1 Qh2 g1R+ Kh7 Qc7 Nf2 Qf3 Qg2 Ng3 Bc3 b2 Nf8+ Kd8 e6 b1B c6 Nh1 Ba4 Qcg3 e7+ Kc7 Bb4 Be6 Ba5+ Kb8 c7+ Kc8 Qf1 Rg2 Qb5 Rdg1 Qb2 d1B Be1 Bdb3 Rg6 Rd8 e8Q Rh2+ Rh6 Rhg2 Qg6 Rd2 Nd1 Rge2 Nf2 B1c2 Rb1 a1N Rd1 Bb1 Qg4 Nc2 Rg6 Qd6 Qg2 B1a2 Qa1 Na3 Qb2 Kb7 Rh6 Qg3 c8Q+ Kb6 Qcc1 Kb7 Qca1 Nc4 Rh4 Kc8 Rd4 Nb5 Rd6 Ra5 Rb6 Na7 Bb5 Ra3 Ba4 Qe5 Qf1 Rg6 Qg2 Ne8 Bg7 Qeg3 Bh6 Ng7 Bf4 Qfg4 Bc7 Q4f3 Bb8
7N/rr1n4/6qb/4k1rp/r5N1/1q1bN1KR/pqRrQQ2/n1Q1Bb1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 b4 Kd6 g4 h5 c4 f5 e4 a5 g5 f3 b5 a3 b6 f4 g6 h3 c5+ Ke5 b7 d5 g7 a4 c6 d3 c7 a2 Be3 h2 Nd2 a3 Bb6 d4 Qe1 Bf5 c8N Ne7 g8R Ra4 Rg5 Bh6 Rc1 a1R Rb1 Rh7 Bc5 Qb6 Bb4 Nd5 Ba5 Nb4 Rc1 Nd7 Nb3 d2 Rc2 d1Q Bg2 d3+ Nd4 d2 Ne7 Qg6 Qf1 Qb1 Qc1 d1R b8Q+ Kf6 Qe8 Qb3 Qf7+ Ke5 Qf8 a2 Qf7 Rb1 Qf8 Nc6 Be1 Na5 Qf7 Qb2 Qf8 Nb3 Qf7 Na1 Qf8 Qe6 Qf7 Qeb3 Ng6+ Kd6 Nh8 Ke5 Ne6 Rdd4 Nc7 Rd3 Nd5 Rd2+ Kf1 f2 Ne3 Rg7 Bf3 Rh7 Kg2 f1R+ Be2 f3+ Kg3 f2 Bf3 Kd4 e5 Bd3 e6 Rg7 Qf8 Rf7 e7 Rf5 Ne2+ Ke5 Nd4 Rg1+ Bg2 f1B e8Q+ Qe6 Qa8 Qg6 Qf3 Qb3 Qe2 Ra7 Kh4 Qb2 Ba8 Rg3 Bg2 Rg4+ Kh3 Rf4 Kg3 Re4 Rg1 h1Q Nf3+ Ke6 Nh2 Ke5 Bf3 Rea4 Ba8 Qhb7 Rh1 Q7b3 Qc5+ Kf6 Qd4+ Ke6 Qf4 Kf6 Qff2 Ke5 Rc6 Qb6 Rc2 Q2d4 Bf3 Rb3 Be4 Qb2 Nhg4+ Ke6 Rh4 Qb7 Nh2 Ke5 Bg2 Qd5 Bh1 Rbb7 Rh3 Qc4 Bd5 Qcb3 Bh1 Rxg5+ Nhg4+
1rq2kN1/1Nq1bB2/q1RbB1n1/p1nQ4/1r6/Q1p2n1R/bn3KRr/4Q3 b - - 0 1 legal: proof: c4 e5 a4 b5 f4 bxa4 g4 exf4 g5 d5 b3 dxc4 Bb2 h6 Bd4 hxg5 Bf2 g4 Bg3 fxg3 h4 f5 e4 a5 d4 g5 b4 c5 d5 f4 b5 g2 b6 g3 b7 a3 e5 a2 h5 g4 d6 c3 e6 c2 h6 c1N e7 c4 h7 c3 Qd3 f3 Rh4 f2+ Kd1 Be6 Qe2 Qc8 Na3 Nd3 Qe1 Na6 Ke2 Rb8 Rh3 Nb2 Nc4 Nc5 Nf3 g1B Nd4 g2 Nf5 g3 Nh6 Bh2 Rc1 a1R Rc2 g1Q Rd2 Ra8 b8R g2 Rb6 Rb8 Rc6 Ra4 Ke3 Bd5 Be2 Bg3 Bg4 Qh2 Be6 f1Q Rf2 g1N Rg2 Nf6 Ng8 Rab4 Ne5 Qfa6 Nf7 Bc4 Nd8 Ba2 Nb7 Be5 Kf2 Nf3 Bf5 Kf7 d7 Nh5 d8Q Nf4 Qd5+ Ke8 Bg4 Bd6 Be6 Ng6 Nh6 Rg8 h8Q Qf4 Qhe5 Rh8 Ng8 Rh6 Qb3 Qfc4 Qa3 Qc7 Rhg3 Rh2 Qd5 Qg4 Bc8 Qe6 Rh3 Kf7 e8B+ Kg7 Qf5 Bfe7 Bf7 Kf8 Qg5 Qed7 Qd5 Qe8 Bd7 Qec8 Bde6
6n1/3N3r/Kn4QN/5RnR/Q3qb2/rbB1qk2/1p1pBB1r/1nR1nr2 b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 c4 f5 h4 g5 e3 d5 c5 d3 c6 d2 c7 d4 h5 a2 h6 g3 h7 g4 Bg2+ f3 Na3 d3 Qe1 d1R Rh2 f4 Qf1 Qd5+ Kb6 Bh6 Rh5 Be6 c8R Rd2 Rf5 Nd7+ Kc7 b5 Rb1 a1N Ne2 b4 Rb3 Nc2 Rg5 Ne1 Bb2 Nb6 Nc4 Ra3 Nd4 Qf5 Bh1 g2 Kb7 g1Q Rh5 g3 Ne5 g2 Rc1 f2 Nd7 f3 Bc3 Bf4 Qe2 f1N Qd1 Qg4 Nf5 f2 Nh6 Qf5 Qc2 Kf3 e4 Qg4 Rbb1 b3 e5 b2 Qa4 Bb3 e6 Qg6 e7 Qe4+ Ka7 Rc2 e8Q Nd2 Qg6 f1R Ka6 Qge3 Ra1 Nb1 Bd4 Re2 Rcc5 d2 Rcf5 Kf2 Bc3 g1N Bf3 Nh3 Bd4 Ng5 Bc5 Nc3 Rc1 Kg3 Bd4 Rh2 Be2 Nb1 Bb5 Qe2 Bf2+ Kf3 Bd3 Q2e3 Bc4 Nf6 Bd3 Rc8 h8B Rc7 Bc4 Ng8 Bc3 Rb7 Nf8 Re7 Nd7 Rh7 Be2+
2NnB1qB/7N/pr1p4/1b2b1Bb/Q3qk2/2Q4K/2q3Rb/bR2qnrR b - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 g4 b5 f4 exf4 a5 h5 a6 hxg4 Bb2 Bxb4+ Nc3 Bf8 Bc1 b4 Nb1 b3 Bd2 Bxa6 Bc1 Bc8 Kf2 Ke7 Kg2 Ke6 c4 Ke5 e4 f5 h4 g5 c5 b2 c6 f3+ Kh2 f4 h5 a6 h6 g3+ Kh3 f2 h7 g4+ Kg2 d6 c7 d3 Ra4 d2 Na3 b1Q Bb5 Nf6 Qb3 d1Q Qc2 Nc6 Be3 Rg8 h8B Rb8 Rh7 f1Q+ Kh1 g2+ Kh2 f3 Rh6 f2 Rg6 Qfe1 Kg3 f1B+ Qf2 Qdc2 Bg5 Bg7 Rb4 Rb6 Nh3 g1B Rh6 Bd7 c8R Be8 Rb2 Bg6 Rb8 Bh5 Rh7 Nd5 Nc4+ Ke6 e5 Ne3 Kh4 g3 Qd2 Kf5 e6 Bh2 e7 Be5 e8Q Bd3 Rbb7 Nf1 Qc3 Qa8 Rbg7 Nd8 Ba4 Qa2 Rb1 Qf3 Qb5 Ke4 Qbb4 Be2 Be8 g2+ Nf2+ Kf5 Qa4 Qfe4+ Kh3 g1B Ng4 Bgd4 Nf6 Bd3 Rh6 Qab3 Nh7 Qba2 Na5 Bb5 Nc6 Qf7 Na7 Qc4 Qca3 Ba1 Qc3 Q4a2 Nc8 Qab3 Be7 Kf4 Rg1 Qba2 Rh1 Rg7 Rg6 Qg8 Rg2 Rg5 Re2 Rg1 Rg2 Bhe2 Bef6 Bh5 Bg5+
bR1Bn1N1/4nB2/KNq1r3/Q1bb3q/n2rp3/4b3/B1NR1p2/1k1q2Qn b - - 0 1 legal: proof: d4 b5 b4 a5 f4 axb4 h4 g5 e4 gxh4 e5 Ra3 f5 Rf3 d5 Rf2 d6 cxd6 f6 dxe5 Rh2 e4 Rh1 e3 Qd5 Nxf6 Qd1 Ng8 c4 d5 a4 Kd7 g4 Ke6 c5 Ke5 c6 Ke4 a5 h5 c7 f5 a6 e5 a7 h3 a8N h4 g5 f4 g6 h2 g7 e2 Kd2 h3 Kc2 e1B+ Kb3 f3 Na3 d4 Nb6 d3 Nbc4 d2 Ne3 Qd5+ Nec4 Na6 Nb1 Qc6 Bg2 Kd3 Ne3 e4 Nd5 Rh6 Nf6 Bb7 c8Q Bc5 Qe6 Ba8 Nh7 Nc7 Qg6 Ne8 Ra4 Ne7 Qf5 Re6 g8B Rf1 Nf6 Bef2 Ra7 Bfe3 Nc3 f2 Nf3 Re1 Rg1 h1N Rb7 h2 Nd4 Re2 Qe1 d1Q+ Nc2 Rd2 Rb8 Qh5 Bf7 Qd1 Kb2 b3 Ng8 b4 Na4 Qh5 Bh3 Rd1 Ka1 b2+ Ka2 b1N Kb3 Nc3 Nb6 Na4 Bb2 Rd2 Bf6 Rd1 Qf1+ Kd2 Kc4 Kc1 Rg6 b3 Qg1 b2 Qfg5 b1B Qd5 Qc8 Kb5 Qc6+ Ka6 Ba2 Qd2+ Kb1 Qa5 Bd5 Rh6 Ng6 Bd8 Ne7 Bf1 Rd4 Bc4+ Qd1 Rf6 Ng3 Rh6 h1Q Rf6 Qh5 Ba2+ Kb2 Rf3 Nh1 Rh3 Bd2 Rc3 Be3 Rd3 Kc1 Rd2 Kb2 Bb3 Kb1 Ba2+
1q5q/1BqBn2r/kq4r1/3N1pN1/pBr3n1/R1Qb1b2/Q1NRrb2/5K2 b - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 h4 b5 f4 exf4 a5 g5 a6 gxh4 Bd2 Bxb4 Ra4 Bf8 Bc1 b4 Ra1 b3 Ra4 Bxa6 Ra1 Bc8 e4 f5 g4 h5 c4 d5 g5 Kd7 g6 Kc7 c5 Kb7 g7 a5 e5 h3 e6 h2 e7 f3 e8B b2 Ne2 f2+ Kd2 a4 c6+ Ka6 c7 d3 Qe1 h4 Nd4 h3 Qe4 Rh6 Bd7 Rg6 Nc6 d4 Ne5 Nf6 g8N Nc6 Be2 f1Q Nf3 Qf2 Be6 Ne7 Na3 b1Q Re1 h1Q Bb3 h2 Qh4 Ng4 Bf7 Qb8 Ng5 Be6 Qh8 Bc4 Kd1 d2 Be6 Bd3 c8Q+ Qhb7 Qd7 h1R Nf6 Q7c7 Nc2 Rh7 Qd5 Bh6 Qg7 Qh8 Bd7 Qe3 Qa2 Qg1 Ne6 Be3 Nd5 Bf2 Ba3 Ra7 Bc5 Rb7 Qf6 Rb4 Bf3 Rc4 Qe5 Be4 Ke2 d1R Ba3 Rc1 Ng5 d3+ Kd2 Rb1 Bb4 Rb2 Bh1 Bf3 Qc3 Be4 Kd1 d2 Ke2 d1B+ Kd2 Bb6 Re2 Bd3 Rh2 Qgc5 Ke1 Bf3 Rd2 Q5d6 Qab3 Bg1 Ra3 Qdb6 Qa2 Bde4 Kf1 Bf2 Nce3 Rc2 Rd4 Rd2 Nc2 Re2 Rd2 Bd3 Nf6 Bd5 Bg2 Bg8 Ba8 Bd5 Bac6 B5e4 Nd5 Bf3 Bb7+
q2bn1b1/4QB1R/RR2r2N/p4Knr/b2q1QBN/8/1p3qr1/r1Nbk3 b - - 0 1 legal: proof: b4 e5 d4 c5 f4 cxd4 a4 exf4 h4 g5 b5 gxh4 a5 Qe7 b6 Qf6 Bd2 axb6 a6 Qd8 Ba5 bxa5 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 e4 d5+ Kh5 f5 g4 b5 c4 f3 a7 Kf4 c5 Kg3 e5 Kf2 g5 b4 c6 h3 c7 b3 e6 f4 Kg4 h5+ Kf5 h4 g6 b2 g7 h2 Nc3 d3 Qb3 d4 Rc1 h3 Rb1 d2 Qb4 d1B Qc5 Ba4 Kg4 Nf6+ Kg5 Nh7+ Kf5 Ng5 g8Q Nd7 e7 Nf6+ Kg6 Ne8 Qf7 Rh5 Nd1+ Ke1 Qg7 f2 Qf7 f3 Ne2 d3 Rc1 d2 Qf4 Qd4 Ne3+ d1B Ng4 Be6 c8N Bg8 Kf5 Rb8 a8R Rb6 Rc3 Re6 Nh6 Bg7 Rb3 Bf6 Bg2+ f1R Nc1 f2 Rb6 Rg1 Raa6 f1Q Bf3 Rg2 Nd6 Qfg1 Bg4 Qf1 Rg1 h1R Qc7 h2 Qd7 Nc7 e8B Bd8 Bf7 Ne8 Qc7 Rc2 Rg3 Rg2 Qe7 Qff2 Rh3 Rf1 Ne4 h1Q Nd2 Rg3 Rh4 Qa8 Rh2 Rfg1 Rh4 Ra3 Rh3 Ra1 Nf3+ Kf1 Nh4 Rg2 Rc3 Ke1 Rcc6 Re3 Rg6 Re4 Rg7 Re6 Rh7
3NNK2/Qp2r1n1/1R4Nk/r2r4/3pqBn1/qbQb1Rr1/2nQ2bb/5B2 b - - 0 1 illegal: No possible last move
kBnq3R/pnbn1Q2/6Nr/Q2q4/4n3/Rb3Rp1/1Q1qB1b1/1r2qNK1 b - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 g4 b5 f4 exf4 a5 h5 a6 hxg4 Bb2 Bxb4+ Nc3 Bf8 Bc1 b4 Nb1 b3 Bd2 Bxa6 Bc1 Bc8 Kf2 d5 h4 Kd7 e4 Kc7 c4 Kb7 c5 g5 h5 f5 h6 d3 e5 b2 h7 f3 e6 g3+ Ke3 f4+ Kd2 g2 Ke1 d2+ Kf2 d4 e7 g4 e8Q d3 Nh3 Bd6 Ra3 Ne7 Ra4 Nd7 Qh5 Rb8 c6+ Ka8 Rc4 Bc7 Kg1 f2+ Kh2 f3+ Nf4 g3+ Kh3 g1Q Qe1 d1Q Nd5 d2 Bd3 f1N Qf7 f2 Be2 Ne3 Nf4 N3f5 Rc3 Nd6 Rf3 Nb7 Ng6 f1N Rh2 Qc5 Kg2 Qd5 Kg1 Qc2 Rh5 d1B Nd2 b1Q Re5 Qc3 Ree3 Bb3 Ba3 Qcd3 Bd6 Q3d4 Qc1 Qba1 Qb2 Qe1 Nb1 Qdd2 Rd3 Rg8 h8R Rg7 Bf4 Rh7 Be5 Rh6 Bf4 Bd1 Ra3 Bb3 Bd6 Ndc5 Bf4 Bh3 Be5 Bg2 Bf4 Qb4 Nd2 Nc8 Bd6 Nd7 Be5 Ne3+ Nf1 Ng4 Bf4 Ngf6 Bd6 Ba5 c7 Qbd2 Bf4 Ne4 Be5 Ne7 c8Q Bb6+ Qc5 Nc8 Bf4 Bc7 Qa5 Bd6 Ne5 Bd1 Bb5 Nbc5 Qd4 Rb6 Bc4 Nb7 Be2 Rb1 Qb2 Bb3 Ng6 Bb8 Bg5 Bf4 Be7 Be5 Bd6 Bf4 Bb8 Be5 Rh7 Bc7 Rh8
3nN1K1/1Q1Rbn1N/p5n1/2b2prq/k4RqB/p1Nrn2R/4b2b/2B2Q2 b - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Kd2 f3 Ra2 g3 Bg2 fxg2 Ra1 cxd6 Ke1 d5 Ra3 d4 Ra2 Qh4 Ra1 Qd8 Kd2 g5 Kd3 f5 Kc4 d5+ Kb5 Kd7 b4 g4 h4 a3 c4 d3 e4 d4 e5 d2 c5 d3 Kc4 Kc6 h5 Nh6 e6 Nf7 h6 Qh4 h7 Qh5 e7 Rg8 e8N Be7 h8B Rg5 Qf1 d1Q Nc3 d2 Nh3 g1N Ne4 g2 Bf6 g3 Kd4 Ba6 b5+ Kd7 Kd5 Ne2 b6 g1B b7 g2 Rb1 Nc6 b8Q Bh2 Rb4 g1B Rd4 Ncd8 Qb7+ Bc7 Rb4 Qa4 Rd4 d1N Rd3 Rc8 Rf3 Bd3 Rf4 a6 Rh2 Rg7 Bh4 Rg5 Nhf2 Ra8 Ng4 Rb8 Rh3 Bd4 Qa8 Rb3 Qb7 Bb5 Nh2 Rd3 Nf3 Rg2 Nfg5 Qb4 Nh7 Rg5 Qb6 Bce5 Rff3 Bh2 Rf4 Ng1 Qb8 Nf3 Qb6 N3e5 c6+ Kc8 c7 Kd7 c8R Ng6 Rc4 Bdc5+ Rd4 Qa4 Qb8 Qb4 Qa8 Qa4 N8f6+ Kc7 Ne8+ Kb6 Qa7+ Ka5 Qb7 Nc6 Ke6 Ne3 Rd7 Qad1 Rd8 Ka4 Rd6 Qdg4 Rd7 Bed6 Kf6 Ncd8 Kg7 Be7 Kg8 Rd4 Nc7 Be2 Ne8 Rd3 Nc3+
5k2/1p4Bq/2Rq1rR1/bQpNb1K1/5n1B/Q1n5/pRq2qNB/b2b3r b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 c5 hxg4 c6 dxc6 Na3 c5 Nb1 c4 b4 a5 a3 axb4 e3 c3 Bc4 Nh6 Bb2 Ng8 Ba2 b3 Bc1 bxa2 Ke2 g5 h4 f5 d4 g3 Kf3 g2 h5 c2 e4 g4+ Kf2 g3+ Kf3 Bb4 a4 c5 e5 Nd7 d5 Ba5 h6 Ra6 d6 Ndf6 h7 Kf8 e6 Nh5 d7 Ne7 Ne2 g1B Qf1 g2 Nbc3 Nd5 Rb1 Bh2 Rb2 g1B Qh3 Qc7 d8B Bd4 Rg1 Qd6 Bh4 Rc6 Be3 c1Q Rg6 Qc2 Bg1 Bg3 Bh2 Be5 Nb5 Nc3 Nc7 Bf2 Nd5 Bfd4 Ng3 Bd7 Nf1 Rb6 Nfe3 Bb5 Qf1 Be2+ Kf2 f3 e7+ Ke8 Qb1 Nf4 Kg3 f2 Ng2 f1Q Qc1 Kf7 e8R Bg4 Rc8 Bd1 Rc6 Qfd3+ Qe3 Qe4 Qe2 Kf8 Qd3 Nfe2+ Kh3 f4 Kg4 f3+ Kg5 f2 Qa6 f1Q Qb5 Rg8 h8B Qf2 Qa6 Nf4 Qb5 Bb4 a5 Ra6 Rg7 Qh7 Rg6 Rb6 a6 Ba5 a7 Rg7 Qe2 Re7 a8Q+ Re8 Qaa6 Re6 Qed3 Rf6 Qa7 Rb3 Qb5 Ra3 Rb4 Rb3 Qaa6 Rb1 Rb2 Be2 B2g3 Rh1 Rc7 Na4 Bh2 Bd2 Rb1 Ba1 Rb2 Bd1 Rc6 Bb4 Qaa5 Nc3 Qa3 Ba5 Bg7+
BK2b3/R3n1r1/1B5R/1bN1r1p1/1Bq2Q1p/1pkN1p2/1N1nnbb1/3Q3n b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 h6 g4 Qb6 g5 hxg5 Na3 Qc7 Nb1 Qd8 h5 Rh7 Qd3 Rh6 Qg3 Rh8 Qh4 gxh4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 c4 b5 a4 f6 a5 f3 c5 b3 c6 d3 a6 d2 c7 d1N h6 b4 a7 f2 h7 b2 Bg2 f1B Ra6+ Nc6 Nc3 b1N Na4 b3 Nf3 Bc5 Ne1 Bf2 Nb2 Bb7 c8N Ne7 Ned3 Re8 h8B Qc7 Nd6 Nd4+ Rc6 Rac8 a8Q Rg8 e3 Ne2 Qb8 Rce8 Bf3 Ba6 Nb7+ d6 Bg7 Bg2 Rg1 Bb5 Nbc5+ Kf7 Bf8 Rg7 Bd2 Qc8 Ba5 Kg6 Ra6 Kf7 Bb6 Qc7 Nb7 Ke6 Ra7 Qc2 Re1 Qc4+ Bd4 Kd7 Nbc5+ Kc6 Qd8 Nc8+ Kf5+ d5 e4 Nd2 e5 Ne7+ Ke6 f5 Qd7+ Kb6 Kd6 f4 Be4 f3 e6 Bc6 Qd8+ Kb5 Kc7 Bd7 Be3 d4 Ba8 Bc6 Kb8 Bd7 Nf4 d3 Bd4 Kb4 Be3 Nc8 e7 Kc3 Qc7 Rd8 e8Q Ne7+ Kb7 Rc8 Qed8 Be8 Qcd6 Rc6 Kb8 Ra6 Q6c7 Re6 Qd5 Re5 Qcd6 Nf1 Qe4 d2 Nfd3 Bg1 Qdd5 Nf2 Qf4 Nh1 Rea1 d1B R1a6 Nd2 Rh6 Bc2 Nb7 Qb5 Nc1 Nc6+ Kc8 Bf2 Bb6 Bd3 Ba3 Ne4 Nc5 Ne7+ Kb8 Bc4 Qd1 Nd2 N1d3 Qa4 Nb4 Bcb5 N4d3 Qc4 Bb4+
Q1q5/p1Qn2N1/1b2b3/Q1p1ppB1/krRp2Bn/BrRK4/r6N/n3r3 b - - 0 1 illegal: No possible last move
k4nNK/p1b1Qrpb/Q4npr/1R4p1/2q3NB/1b1n2N1/3Rp1B1/1bQ5 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f6 g6 hxg6 e5 Ba6 Qh5 Bb5 Qg5 fxg5 e6 Bc4 Nd2 Bxe6 Nb1 Bc4 Be2 Ba6 Bf1 Be2 Kd2 e5 c4 d5 b4 Kd7 f4 Kc8 h4 Kb7 b5 e4 f5 d3 Kc3 d2 Kd4 d1B Ke5 d4 h5 e3 h6 d3 h7 d2 c5 a3 b6 a2 c6+ Ka6 f6 Bb4 f7 Qd7 f8Q Qd3 b7 Qb5+ Ke6 Bc2 Kf7 d1B c7 Qe5 c8Q Qh2 Bg2 Qc7+ Qe7 Bh5 Nc3 e2 Be3 Bd6 Nf3 Bb1 Nh2 Nd7 Ne4 Nf8 Bf2 Nf6 Ng3 Bf3 Ng4 Qc4+ Qce6 Bdc2 b8Q Bb3 Rd1 Bd5 Qbc7 Rb8 Qc5 Rb7 Rd2 Rd7 Qa3+ Kb7 Qc1 Bc7 Be1 Ka8 Bf2 Bd3 Rb1 a1N Rbb2 Nc2 Rb1 Ba2 Rb5 Nb4 Be1 Bb3 Bf2 Rg8 h8N Bb1 Be1 Nd3 Bf2 N8h7 Be1 Re8 Bf2 Nf8 Be1 Nh5 Kg8 Red8 Nf7 Nf6+ Kh8 Rc8 Nfh6 Re8 Qc5 Rf7 Qa6 Re3 Ne4 Rh3 Ng3 Re7 Ne4 Bg8 Bg3 Rh5 Bh4 Bh7 Ng8 Rf7 Qe7 Rh6 Ng3+
R4q2/4k1Q1/1n3nK1/3q4/1NbnBrn1/2qR2n1/pNrR1q2/1Rr1R1bB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 Kd2 g5 Kd3 d5 b4 a5 e4 f5 h4 a3 c4 g2 e5 g3 e6 a4 b5 f4 h5 a2 c5 g4 c6 f3 c7 a3 e7 f2 b6 Nf6 b7 Nbd7 b8R Nb6 h6 Ba6+ Kc2 d3+ Kc3 d2 Kd4 Bc4 Ke5 d4 Kf5 d3 c8B Ra4 Qe1 d1N h7 d2 Rh3 Ne3+ Kg6 d1Q Bf5 Qd5 Nf3 g1N Nd4 g2 Qe2 g3 Qd1 Ne2 Nb5 g1R N5c3 g2 Nd2 Neg4 Rb1 a1Q Rd3 a2 Ra8 Nd4 Be4 Bg7 Be2 f1N B2f3 Ng3 Qb3 Rd1 Qb2 g1Q Bh1 Rg8 h8R Qf2 Rh3 Rc1 Rh2 Kd7 Rg2 Qf8 e8R Rh8 Re6 Rh2 Re5 Bh6 Ree8 Be3 Re6 Qc6 Nd5 Qcd6 Nb4 Qd5 Rd6+ Ke7 Rg1 Rg2 Re1 Rh2 Qb3 Qc3 Qb2 Qf1 Qa1 Bg1 Qb2 Re2 Rdd8 Qf2 Qa1 Bb3 Nc4 Rec2 Nb2 Bc4 Rd7+ Ke6 Rh7 Kd6 Rh2 Ke7 Rg2 Qf3 Rge2 Qf2 Red2 Nb5 Rde3 Nfh5 Bf5+ Qce5 Na6 Bf1 Nd3 Rf4 Bfe4 Qc7 Qd4 Qc3 Nb2 Bc4 Qh8 Nd4 Nb4 Nhf6 Red3 Qd6 Qg8 Qd5 Qg7+
B3rRB1/2bRn3/R3q1Rb/1K4bb/2nrqp2/1kr2NQ1/R7/n1N3qq b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 g5 h4 b5+ Kb3 Kc5 c4 f5 a4 d5 e4 g2 e5 d3 e6 g3 a5 d2 a6 d4 a7 g4 h5 d3 h6 Qe8 e7 Nc6 h7 Nd4+ Ka2 b3+ Ka3 b4+ Kb2 Bh6 Qc2 d1R Nc3 d2 Nge2 g1B Nf4 g2 Ncd5 g3 Rh4 Be3 Rg4 g1Q Nc3 g2 Qd3 Nc2 Rc1 Na1 Nfe2 Beg5 Nd4 f4 Qg3 Bd7 Rc2 Rc8 a8B Rc6 Rh4 Bg4 Nf3 Bh5 Ne2 Qc8 e8R Ne7 Rd8 Qe6 Rd6 Re8 h8R Qh1 Rg8 g1B Nc1 Bd4+ Rc3 Be5 Rd7 Bc7 Rh2 Qg1 Rg6 Qh1 Kb1 b2 Ka2 b1N Ra3 b3+ Kb2 Kb4 c5 Qg1 Ra6 Na3 Bc4 Qh1 Rb6+ Ka4 Kc3 b2 Kd4 b1Q Ra6+ Kb4 Ba2 Nc4 Bb3 Rb6 c6 Rb5 Rf2 Ra5 Ba2 Ra3 Re2 Rc3 Rh2 Bd6 c7 Qc2 c8R Bc7 Rc6 Ka3 Kc5 Qce4 Rb6 Rg1 Rf2 d1Q Kb5 Qdd4 Rcb8 Rd1 Rc2 Qdg1 Ra6+ Na5 B2d5 Rd4 Re2 Qf6 Bg8 Qfe6 Nd3 Kb3 Ra2 Nc4 Rbd8 Nb2 Nc1+ Kc2 Ra7 Rf8 Ne2 Kb3 R7a6 Nc4 Rd5 Qhh3 Rf5 Qhh2 Rd7 Re8 Rf8 Qhh1 Nc1+
1br2rq1/NbNkp1n1/2N2R1q/N4qBp/N3b3/Rq4q1/1Q3B2/n1K4n b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 h4 fxe4 a3 g5 Bc4 gxh4 Ba2 b3 Qd3 bxa2 Qf3 Ra4 Qd1 Ra8 Kd2 d5 f4 b5 c4 h5 g4 d3 f5 d4 f6 h3 f7+ Kd7 a4 h2 g5 b4 c5 b3 a5 b2 g6 Nc6 g7 Nf6 g8N Nb4 a6 Nc2 a7 Bg7 f8B Bb7 Qf3 Rc8 a8N Ne8 Na3 b1B Qf2 Be5 Bg7 Bb8 Nh6 Rf8 Ng4 e3+ Kd1 d2 Nc4 Qb6 Ne2 Qh6 Rf1 h1N Bh8 Ng7 Nc7 Na3 Na5 B1e4 Nc3 Nc2 Rb1 a1Q Rb3 Qa4 Ra3 Qc4 Na4 Na1 Qg2 Qg8 Ne5+ Kd8 Nec6+ Kd7 Rd3 Nb3 Kc2 e2 Rf6 d1Q+ Kb2 e1Q Bg5 Na1 Ra3 Qf3 Qe2 Qh4 Kc1 d3 Qb2 Ne8 Bg7 Qhg3 Bh8 Qf5 Bg7 Qhg6 B7h6 Ng7 Bh4 Qgf3 Bf2 Qfg3 Bg5 Q6h7 Nb4 Qh6 c6+ Kd8 Nca6 Ke8 c7 Kd7 Nbc6 d2+ Kd1 Rce8 c8N Rd8 N8a7 Rc8 Rf3 Rcd8 Nc7 Rc8 Ke2 d1Q+ Ke3 Qb1 Kd2 Qba2 Ra3 Qab3 Kc1
1RR1r1b1/2Brr2B/4Qq2/1qk3n1/1Bnn3n/2p1N2B/p1br4/K1bB3N b - - 0 1 legal: proof: h4 e5 f4 exf4 a4 b5 c4 bxa4 h5 d5 b3 axb3 h6 dxc4 Ra4 gxh6 Ra5 h5 Ra1 h4 e4 Ke7 d4 Kd6 Kd2 h5 Kc3 f5 Kb2 c5 g4 a5 d5 a4 g5 c3+ Ka3 h3 g6 c4 g7 b2 Ka2 a3 e5+ Kc5 d6 c2 e6 c3 d7 h2 e7 h4 e8B f3 Bh5 h3 Qe2 f2 Bg2 f1N Bgf3 f4 Bhg4 Nd2 Be6 Nh6 g8B Rh7 Qe1 Qf6 d8B Rd7 Qh4 Nf5 Bfd5 f3 Qh5 f2 Qe8 f1Q Bef7 Qb5 Qe6 Nc4 Nf3 Nh4 Bc6 Bh6 Bf4 c1R Nfd2 Re1 Bg2 Nc6 Nf1 Nd4 Bfc7 Bc1 Nbd2 b1R Rg1 h1B Ng3 h2 Bh3 Bd5 Bh7 h1N Ndf1 Nf2 Ne3 Ne4 Bh5 Ng5 Bd1 Rb4 Rb1 Rb2+ Ka1 a2 Ba5 Rd2 Nh1 Bcb7 Bdc7 Re8 Rg3 Be4 Rg1 Bc2 Rg4 Bd5 Rb2 Ne4 Rg8 Ree7 Rc8 Ng5 Qe4 Bg8 Qe6 Qc6 Rbb8 Qb5 Ng4 Re4 Ne3 Re8 Qg4 R4e7 Qe4 Nb2 Qe6 Nc4 Bb4+
1b3q2/1nkbN3/nq1R4/N2p1n2/pNr1N2B/r2N2pp/BKn5/1nQ1R3 b - - 0 1 legal: proof: d4 e5 f4 exf4 a4 c5 a5 cxd4 g3 fxg3 a6 gxh2 Bf4 bxa6 Be3 a5 Bc1 a4 Kd2 d5 e4 Kd7 b4 a5 c4 h5 Kc2 f5 b5 g5 e5 h4 c5 h3 b6 a3 b7 d3+ Kc3 g4 c6+ Kc7 e6 g3 e7 d2 Qa4 d1N+ Kb3 a2 Be3 f4 Nc3 f3 Nge2 f2 Qa3 Na6 b8N Bd7 Nc1 Rh4 Bg5 Rc4 Nd3 Nh6 Bh4 Nf5 Ne4 Nc3 Qc1 Nb1 Kb2 Ra7 Be2 f1Q Rg1 Qf4 Re1 h1N Bf1 Nf2 e8N+ Kc8 c7 Bd6 Nc6 Qh6 Re2 Qf8 Re1 Kb7 c8N Qb6+ Ncb4 Bb8 Ne8d6+ Kc7 Nb7 Ra8 Ned6 Ne4 Ne7 Nec5 Ne4 Ra7 Nd8 Nb7 Ndc6 Na3 Rb1 a1N Be2 Ra8 Bd1 Ra7 Bb3 N1c2 Ra1 Nb1 Ba2 a4 Na5 Rc3 Re3 Ra3 Re1 Ra8 Re3 Ba7 Rf3 Rc8 Rf4 Bb8 Rf1 Nd4 Rf6 Nf5 Rc6+ Kd8 Rf6 Rc4 Rd6 Kc7 Qh1 Nc3 Re1 Nb1 Qf1 Nfe3 Qf4 Nf5 Qc1
b1R5/1n5r/2n4r/r4B2/Qb2N2B/1nR1qrN1/NqprrR1K/k2q3R b - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 h4 g5 f4 gxh4 a3 bxa3 Qc2 exf4 Qa4+ Ke7 Qd1 Ke8 Kf2 Ke7 e4 Kd6 g4 Kc5 Kg2 Kb4 d4 c5 d5 h5 e5 f5 d6 b5 d7 h3+ Kh2 c3 g5 c2 g6 Kb3 e6 f3 g7 f2 e7 h4 e8N a2 Na3 b4 Qd2 f4 Bg2 f1R Nb1 c4 Ne2 f3 Nf6 f2 Qh6 c3 Qg6 Re1 Qh6 f1R Bf4 Kb2 Ng4 c1Q Qb6 c2 Nh6 b3 Be4 Qe3 Qc7 Ra5 Nec3 Bb7 Qd6 Na6 Qe5 Ne7 g8R Rf3 Rf1 Nc6 Rgg1 Bb4 Qh5 Nc5 Ng8 Re2+ Rg2 Rh7 Bh6 Ba8 Nd2 Nb7 Rgf2 Qdb6 Rac1 a1N Bf5 Qbd4 Nde4 Qd1 d8R Rd7 Ngf6 Rdd2 Kg1 h2+ Kg2 h1R Rc8 Rhh3 Qe8 Rh1 Ng3 Rh2+ Kg1 h3 Na4+ Ka2 Nfe4 b2 Bg5 b1Q Bh4 Nb3 Nac3+ Ka1 Re1 Rd6 Rf1 Rh6 Na2 Rg2+ Kh1 h2 Rg1 Ne7 Qb5 Nc6 Qa4 Rd2 Rff1 Rge2 Rf2 Rd7 Kg2 h1R Rf1 Rdh7 Re1 Rd2 Ree2 Re1 Kh2 Qa7 Re3 Ree2 Rc3 Qd4 Re3 Qb2 Rc3 Qe1 Rg2 Qf2 Re1 Qe3 Rf2 Qd1 Rh1
r5n1/4N1pK/1NBB2nB/2n1nR2/2RbQq2/r4n1b/q4b2/RqnR3k b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 g4 h5 e4 fxe4 a3 bxa3 Kd2 hxg4 Ke2 Nf6 Ke1 Ng8 Kd2 Kf7 h4 Ke6 c4 Ke5 f3 Kf4 c5 Kg3 h5 e5 f4 d5 f5 b5 h6 a2 f6 b4 c6 b3 h7 d3 Ke3 b2 c7 d4+ Kd2 e3+ Ke1 e4 f7 d2+ Ke2 Na6 Qa4 d1N Qc6 d3+ Ke1 e2 Kd2 e1N Qg6 Ne3 Qh5 Nc5 Nh3 Nc4+ Kc3 d2 Qg5 d1Q Na3 b1Q Be3 Q1d5 Be2 Kg2 Qh5 g3 Bg5 e3 Bh6 Qf6+ Qe5 Qf4 Qe4+ Nf3 Rd1 Ne5 Nc4 Ng6 Nb6 Kh2 Ba6 e2 Bb5 e1N Bc6 Bd7 c8R g2 Rc7 g1N Rc8 Be7 f8B Bh4 Bd6 Ned3 Rf8 Qe6 Rf5 Nfe5 Kd4 Ra3 Na4 N8e7 Nb6 Rha8 h8R Nc1 Rc8 Ng8 Rc7 Qeb3 Rc8 Qa4+ Kd5 Bf2 Rc7 Qg5 Nf4 Ngf3 Rc8 Qg2 Rc7 Qf1 Rc8 Kh1 Rc7 Nh4 Ng6 Qac2 Ne7 Nhg6 Rf4 Bh3 Rf5 Na6 Ke6 Qd2 Bd7 Qf4 Rc4 Qc2 Rb1 a1B Bc6 Bad4 Ra1 Qb1 Bd7 Qa2 Bc6 Nd7 Kf7 Nac5 Na4 Qe1 Nb6 Ne2 Qe3 Ngf6 Rd3 Qeb1 Qe4 Nc1 Rd2 Ne8 Kg8 Nde5 Rb2 Nf8 Rd2 Nf6+ Kh8 Ng8 Rd3 Nfg6+ Kh7 Kh2 Rd2 Kh1 Rd1+
2RKBn2/bb2BQ2/2p3q1/B1NR2r1/3n1b2/q2r1q1R/1r1r2B1/bk1N2r1 b - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 h4 g5 f4 gxh4 a3 bxa3 Qc2 exf4 Qa4+ Ke7 Qd1 Ke8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 b5 d4 f5+ Kf3 Kd5 e3 a2 g5 b4 g6 b3 g7 h3 Be2 c6 Nd2 h4 Rb1 a1B Ne4 b2 Ng3 c3 Bb5 h2 Qe1 c2 Qf1 h3 Bd2 c1B Ba6 Qd6 Qd3 Rh5 Nf1 Rg5 Ng3 Ne7 g8R Bb7 Qa3 Qg6 Bf1 Nd7 Ne4 Rd8 Ne2 Kc4 Qb4+ Kd3 d5 Kc2 Rg1 h1R d6 h2 Rg3 Rg1 Nc5 h1R e4 Rh3 e5 Bh6 e6 Nf8 Bc3 Be3 Rd1 b1R d7 Rb2 Rd5 Kb1 Bg2 Rh2 Rh3 Bf2 Nb3 Ba7 Qc4 Rd2 Nc5 Rb2 Kf2 f3 Ke3 f4+ Kd4 f2 Ba5 Nf5+ Ke5 f1Q e7 f3 e8B f2 Rh8 Qc1 Nc3+ Kc2 Qa2 f1Q Nd1 Qf3 Qc4+ Kb1 Rg8 Qgh5 Kf6 Nd4+ Ke7 Qg6 Qf1 Rd2 Rh8 Rd3 Qf2 Rb8 d8B Qa3 Rg8 Qg4 Qf7 Qf3 Bh1 Rhd2 Bg2 Ba6 Rh8 Rbb2 Rg8 Bb7 Rh8 Nh7 Kd7 Nf8+ Kc7 Rg4 Be7 Bf4+ Kd8 Rg5 R8h6 Qgh5 Rhd6 Qhg4 Rd7 Qf5 Rc7 Qg6 Rc8
2Nnb3/2b1r3/B1n1b2b/k1R1nR2/r5qN/q4QB1/1pB5/nqB2KNr b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 c4 f5 h4 d5 e4 Kd7 c5 Kc7 h5 b5 e5 g5 c6 Kb6 e6 d3 h6 f3 e7 d4 e8N b4 c7 f4 h7 g3 Nd2 g4 Rh2 a2 Nb3 f2+ Kd2 g2 Na5 b3 Nf6 b2 Rh6 g3 Qe2 f3 Nh5+ Be6 c8B Nc6 Kd1 d2 Rf6 Nh6 Rg6 Nf7 Nb7 Bh6 Qe3 Qd6 Na5 Re8 h8B Qa3 Nf4 Nfd8 Nfh3 Re7 Bd3 f1R+ Qe1 f2 Ne2 g1N Be4 g2 Ng5 Nf3 Be5 g1B Bc2 Bh2 Ba6 Rh1 Rf6 f1Q Bg3 Nfe5 Nf3 Qg1 Rb1 a1N Nb7 Qg2 Nd6 Ka5 Neg1 Qh3 Ke2 d3+ Kf2 Qg4 Qe3 d1Q Rf4 d2 Rf5 Qe1+ Kg2 d1B Nh4 Be2 Nc8 Bb5 Qf3 Raa7 Bf4 Qe4 Rd1 Qe1 Rd7 Qb1 Rc7 Nd4 Ne2 Be8 Bad3 Rb7 Ba6 Rb4 Ng1 Ra4 Rc4 N4c6 Bc1 B6f7 Kf2 Be6 Bgf4 Bg3+ Kf1 Bh2 Bb5 Nd3 Rcc5 Bg3 Bg5 Bb8 Bf4 Nde5 Bg3 Bc7 Ba6+
2K5/2n2R2/n1NB3N/2qRr1n1/rBn2b1r/pRq3k1/nRb2q1p/2B2Q2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 h4 h5 a4 b5 g4 bxa4 f5 hxg4 Bh3 gxh3 f6 exf6 Bd2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kf3 Kf5 c4 a5 b4 g5 e3 d3 b5 a3 c5 a4 b6 d2 h5 a2 h6 g4+ Ke2 f3+ Kd3 f2 Kd4 f1Q e4+ Kf4 h7 f5 c6 a3 c7 g3 b7 h2 e5 g2 e6 Ra4+ Kc3 d4+ Kb3 d3 e7 Qd4 e8R Qff2 Qe2 Ne7 Rd8 Qc5 Rd6 Bh6 Qf1 Na6 b8B Kg3 Nc3 d1R Nd5 d2 Ne3 f4 Rd5 f3 Ng4 Bf4 Rb1 a1Q Nh6 Re1 Rb2 Bf5 c8R d1N Rf8 Re5 Rf7 Nc3 Bd6 Na2 Ne2+ Kh3 Rd3 Nd5 Nd4 Ndc7 Nc6 Kg3 Rdd2 g1N Rd5 Nh3 Rg1+ Kh4 Rg8 Bg6 Rb8 Ng5 Rb6 Kg3 Rb7 Ra8 h8B Bd3 Bg7 Rh8 Bgf8 Rh7 Ng8 Rh4 Nh6 Rd4 Rb4 Bh7 Ka4 Bc2+ Rb3 Qac3 Bfe7 Q5c4 Ka5 Rde4 Na7 Rd4 Kb6 Qc5+ Kb7 Rde4 Rb6 Ra4 Rd1 Qfd4 Nc6 f2 Kc8 Qde3 Qh1 f1N Rd5 Nd2 Qf1 Qf2 Rb2 Nc4 R6b3 Qcd4 Bb4 Qc5 Bd6
3kn3/2BB4/1b2K3/1bb2N1n/bqpR2n1/QrpnR3/r2Rb2B/n4N1B b - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 h4 g5 f4 gxh4 a3 bxa3 Qc2 exf4 Qa4+ Ke7 Qd1 Ke8 Kf2 h5 Kf3 f5 g4 b5 e4 c5 d4 a2 e5 b4 d5 c3 d6 h3 g5 h4 g6 h2 g7 h3 e6 Qa5 e7 Nh6 g8B Ng4 Bgc4 Bd7 Bd5 Na6 Bdc4 Ba4 Bb2 Nc7 Ke2 f3+ Kd3 f4 Ke4 f2 Kf5 f3 Bg2 f1B Qe1 f2 Bf3 Be2 Bfd5 f1B Nd2 Rh7 Rb1 a1B Bg8 Rf7+ Kg6 Rf3 Bb3 Beb5 Bgd5 Bfe2 Bb7 Kd7 Qh4 Ne8 Qg3 Rd3 Ngf3 Qb6 Rhc1 h1N Kf7 h2 Rg1 Nhf2 Nf1 h1N Rg2 Ra7 Qh3 Ng3 Nh4 Nh5 Rd1 Re3 Ba3 Nd3 Nf5 Ndf2 Rg1 Qa5 Qh1 Nef6 Ba2 Bc2 e8R Bb3+ Re6 Ne8 Ba8 Kc8+ d7+ Kd8 Bc1 Bb2 Ng7 Ba3 Nd2 Bd6 Qd5 Bc7 Re7 Bb6 Nf5 Rh3 Re4 Rh1 Rg3 Nd3 Rd4 Bc2 Bb7 b3 Qd6 b2 Be6 b1N Bc6 Re1 Bh1 c4 Nf1 Nd2 Qc5 Nb3 Bf4 Ra8 Re3 Na1 Rd2 Rb1 Bh2 Qa4 Qb4 Qb3 Qa4 Bac5 Qb4 Ra2 Qa3 Ndf2 Bed5 Qb4 Bc6 Nd3 Ke6 Nge5 Rh4 Bca4 Rd4 Kc7 d8B+ Kc8 Rh3 Ng4 Bdc7 Rbb2 Re3 Rb3 Bcd6 Kd8 Bd7 Rb1 Bdf4 Rb3 Bc7+
1kN2B2/1BRRbb2/4n2n/Knb3Rb/5p2/1Br1qRQ1/2q1n2p/1q2r1N1 b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kd2 h5 e4 f5 c4 b5 g4 d5 e5 Kd7 c5 Kc7 c6 b4 e6 a2 e7 h3 e8R f3 g5 d3 g6 f4 g7 f2 Re2 b3 Kc3 b2 Rd2 h2 Nh3 d4+ Kb3 h4 Re2 d2 Rg1 h1B Qc2 d1Q Re6 d3 Rg3 d2 Re8 Be6+ Kc3 Bf3 Rg2 Bf7 Re6 Qd4+ Kb3 Nd7 Ng5 h3 Nc3 h2 Ne2 Rh3 Ng1 Kb8 Ba6 f1N Bb7 Ng3 Ne4 Ne2 Rg5 Be7 Nd6 Qe3+ Kb4 b1Q+ Qb3 Qdc2 Ba3 Nh6 g8B Nc5 Nc8 d1N Rd6 B3h5 Rd7 Ne6+ Kb5 Ra6 Bb4 Rb6+ Ka5 Ndc3 Qa3 Nb5 Qd3 Qbb2 Rf1 a1B Rf3 Qbb1 Qc3 Bc5 Qe1 Bf6 Qg3 Bcd4 Bf8 Be7 Nd6 Bc5 c7+ Ka7 c8R Rc6 Rcc7 Kb8 Nc8 Rd6 Rf1 Rd1 Qf2 Rf3 Qg3 Re1 Rf2 Qe5 Rf1 Rc3 Rf3 Qe3 Bh7 Qcc1 Bc2 Qcb2 Ba4 Q2c2 Bb3
5Bk1/prBRQb2/p3qrq1/1N1n3q/1NK1N3/b3r1Nr/5b1n/2b3BR b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 fxg3 d4 c5 a5 cxd4 a6 bxa6 Bg2 h5 Nh3 h4 Ng1 h3 Bh6 hxg2 Bd2 Rh6 Bc1 Rh8 Kd2 d5 Kd3 f5 e4 Kf7 h4 g5 c4 g4 b4 f4 h5 f3 c5 f2 b5 f1R h6 Nc6 e5 Nb4+ Kd2 d3 Kc3 d2 b6 d4+ Kc4 d3 h7 Be6+ Kc3 Qd7 c6 Re8 b7 Nh6 b8B Rf6 c7 Nd5+ Kd4 Ba3 Qe2 d1R c8N d2 Nb6 Kf8 Qe3 Bf7 Kc4 Qe6 Ne2 g1B Nbc3 g2 Ne4 g3 Bc7 Ng4 Qc5+ Kg7 Qe7 Bf2 Bb2 g1B Bd4 g2 N2g3 Rf1 Rd1 Nh2 Be3 Rb8 Bc5 Rhe8 h8B+ Kg8 Bg7 Rb7 Bf8 Be3 Bd4 R1f3 Bc5 Bgf2 Bd4 Qg4 e6 g1Q Bc5 Qe1 Bd4 Qg6 Bc5 Nc3 Nd5 Bf4 Nb4 Nd5 Qd7 Re3 e7 Rd8 e8N Rdb8 Ra1 d1Q N8d6 Qdh5 Qe7 Re8 Ra2 Rf3 Nb5 Bfc1 Rd2 Rb3 Nf5 Rh3 Nfg3 Qee2+ Rd3 Qeg4 Qd6 Re5 Qe7 Qe6 Bd4 Be1 Bg1 Bf2 Nec3 Re2 Nce4 Re3 Rd1 Nc3+ Rd5 Qgg4 Kd4 Qgg6 Rd7 Nd5 Kc4
7B/n2b1p1r/kq1b1r1n/r7/1BK2nB1/1RBRbR1Q/3N1pr1/1Nn2b2 b - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 g4 h5 f4 exf4 a3 bxa3 Bh3 hxg4 Bg2 Bc5 Bf1 Bf8 h4 Kd7 d4 Kc6 Kd2 Kb5 Kc3 c5 e4 g5 e5 g3 h5 a2 e6 g4 h6 f3 h7 f2 e7 g2 e8R g3 d5 Nh6 d6 Ra6 d7 Rf6 Qg4 Bd6 Rf8 Nc6 Rh4 Na7 Rg8 Qb6 d8B Ka6 Be7 Bd7 Ne2 g1N Rg6 g2 Qg5 Nh3 Ng3 g1R Qd2 Nf4 Na3 Rg2 Rb1 a1R Rb5 Ra2 Nb1 Ra5 Kb2 c3+ Kb3 c2 Bb2 c1B Qd3 Bd2 Be2 Be3 Nf1 c4+ Kc3 Ra2 Bg4 Ra5 Kc2 c3 Kb3 c2 Bc3 c1N+ Kc4 Rg8 h8B Rg7 Rhh5 Rh7 Rhc5 Qc7 Rb3 b5+ Kb4 Qb6 Nfd2 Bd4 Qh3 Be3 Ba1 Rg3 Kc3 b4+ Kc4 Rg2 Rd3 b3 Bc3 b2 Rb5 Nc8 Rb3 Na7 Na3 b1B Rg5 Rg6 Rf5 Rf6 Bf8 Bc2 Nab1 Bd1 Be7 Be2 Bf8 Bf1 Be7 Nfe2 Rf3 Nf4 Bf8 Bb8 Bc5 Bd6 B5b4
1QNB4/1q1k3b/2q1N2b/BqB1Rp1K/3b3n/R3r1R1/1pbnprb1/7R b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 e5 Ra3 e6 Ra5 Bd3 fxe6 f6 Ra8 Bf5 exf5 Ke2 e5 c4 d5 h4 b5 a4 g5 h5 b3 h6 b2 c5 b4 a5 d3+ Ke3 d2 f7+ Kd7 h7 g3 Kf3 d4 a6 g4+ Ke2 d3+ Ke3 e4 Kf4 e3 a7 b3 Qf3 d1B Rh2 g2 Rh1 g3 Qf2 e2 Nc3 b1Q Qf1 d2 Qf2 Qc7+ Kg5 Qb7 Ra6 Bc2 Nh3 g1B Nd1 g2 Rg6 Na6 Ne3 d1B Kh5 Ne7 Qf4 Bh6 Rg3 Ng6 f8B Nh4 Nc4 Bd4 Qb8 g1Q Bd2 Qgg2 Ba5 Qgc6 Nd6 Qbb5 Be7 Bb7 Nc8 Re8 Bed8 Re3 h8B Rf3 Rg6 Rf2 Nf4 b2 Rg5 Qa2 Ne6 Qad5 Rg4 Bb3 Rg3 Bdc2 Bg7 Qg2 Bf8 Qge4 Ng5 Bg8 Ne6 Bh7 Bfe7 Nb4 Bf8 Na2 Bd6 Nc1 Bf8 Nb3 Bd6 Qcd5 c6+ Ke8 c7 Nd2 Bc5 Kd7 Nd6 Qdb3 c8R Bd5 Rc6 Qb7 Nc8 Q3b5 Rb6 Bc6 Ra6 Qd5 Rb6 Qdc4 Ra6 Bg2 Rb6 Q5c6 Rbb3 Qcb4 Rbe3 Q4b5 Re5 Q7a6 Qb6 Rb8 a8R Qab7 Ra6 Ra8 Bc3 Ra7 Ra3 Ra4 Qa7 Rb4 Qa8 Rb3 Bca5 Re3 Qb8
1B1b1b1N/pB1R3K/4Bb2/p2RbNQ1/nr1q2kp/4B1rb/4q1qn/2R5 b - - 0 1 legal: proof: d4 c5 a4 cxd4 a5 b6 Bd2 bxa5 Bg5 Nf6 Bc1 Ng8 e4 g5 h4 gxh4 c3 dxc3 Ra2 f5 Ra1 fxe4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 g4 d5 b4 e5+ Ke3 Kg5 b5 d4+ Ke2+ e3 Kd3 h3 Ke4 d3 b6 h2 b7 c2 Na3 d2 Bg2 e2 Nc4 e1B Ne2 h4 Nd6 Na6 b8B Nh6 Nd4 Rg8 N4f5 Bd7 Rg1 h1Q f3 Bg3 f4+ Kg6 g5 Ng4 Re1 Kh5 g6 Qg1 Re2 Nh2 g7 Kg4 Nf7 Qg5 Qf1 d1Q Be3 c1B Rd2 Qe2 Nh8 Bc8 Rd7 Nc5+ Kd5 e4 Ke5 Ba3 Rc1 Na4 Qd1 Bac5 Qd6 Bb6 Qh6 Bd8 Ke6 Qgd1 Kf7 Qd4 Bh1 Qe7+ Kg6 Qg2 Kh7 Qe8 Bg1 e3 Rd5 e2 Be3 e1B Rd7 Qe2 Bb7 Bc3 Rd5 Qee4 Rd7 Bc5 Rd5 Q4g2 Rd7 Re8 g8B Re4 Be6 Bf8 Nd6+ Kf3 f5 Be5 f6 Ba1 Nf5 Kg4 f7 Rf4 Rf1 Rf3 Rc1 Rg3 Bd6 Rb8 Bc7 Ba3 f8R Bc3 Rff7 Bf8 Rd5 Bef6 Rfd7 Ba1 Bc6 Rb4 Bb8 Qeb2 R7d6 Kf3 Bf7 Qc4 Ne7 Qbe2 Bb7 Bh3 Be6 Bae5 Nf5 Kg4 Rd7 Qd4 Qg5+
nb3R2/1r2N2n/3B1Bpr/KnQR1qr1/2p1B3/5p1n/R3bqN1/r3B1k1 b - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 g4 h5 f4 exf4 a3 bxa3 Bh3 hxg4 Bg2 Bc5 Bf1 Bf8 h4 Kd7 d4 Ke6 Kd2 Kf5 Kc3 Ke4 h5 f5 e3 c5 d5 b5 d6 g6 d7 a2 h6 f3 h7 f2 Nf3 b4+ Kd2 g3 Ng1 b3 Kc3 b2 Qd2 g2 Rh3 f4 Na3 b1R Rh6 f3 Qd1 Bd6 Nh3 g1N Qd2 Na6 Rh5 Bb8 Nb5 Qg5 d8B Qf5 Be7 Nc7 Nf4 Nf6 Na7 Rb7 Bd6 Nh3 Nc6 Ra5 Ne7 Na8 Ng2 Bd7 Qb2 Bb5 Bd2 Ba6 Be2 f1Q Be1 Qf2 Qc1 Rab5 Rb1 a1R Rb2 Rba5 Ra2 Bb5 Kc2 c3 Kb3 c2 Bf1 Rg8 h8B Nh7 Bf6 Rh8 Qa3 c1N+ Kc3 c4 Qc5 Ne2+ Kb4 Kd3 e4 Ba4+ Qb5 Bd1 e5 Ke4 e6 Nc3 Qb6 Nb5 Qc5 Be2 Rg5 Qf4 Rd5 Qf5 Ng8 N7g5 e7 Rh6 e8R+ Qe6 Qa7 Nh7 Rf8 Qf5 Ne7 Qg3 Qg1 Qf2 Nf4 Ke3 Qg5 Bd1 Bd3 Be2 Be4 Qg3 Bd2+ Kf2 Ng2 Kg1 Be1 Qf2 Qe3 Ra3 Qa7 Rd3 Ka5 Rd4 Bb1 Rg4 Qc5 Rg5 Be4
5r1k/1Nn2N1n/2K2Rr1/1RQ2n2/2B1p1bN/Rpp3np/1R3Bq1/q4rb1 b - - 0 1 legal: proof: c4 f5 b4 a5 c5 axb4 c6 dxc6 Na3 c5 Nb1 c4 h4 g5 e4 fxe4 a3 bxa3 Rh3 gxh4 Rh2 Ra5 Rh1 Ra8 Ke2 Kf7 Ke3 Kg7 d4 h5 g4 b5 f4 e5 f5 c5 d5 c3 d6 a2 d7 b4 g5 h3 g6 c4 Qb3 h2 Bd3 h4 Bd2 c2 Bf1 c1N Nh3 c3 Be1 Nf6 Qd1 b3 Bf2 Nh7 Ng5 h3 Qd6 Ra6 Nd2 Ne2 Qc5 Ng3 f6+ Kg8 Rg1 h1N g7 Bd6 Rb1 a1Q Ndf3 Rc6 Bd3 Na6 Nh4 Nc7 Rb2 Bf8 Nf7 Nf5+ Ke2 e3 Kf3 e2 Ke4 Qe7 d8N e1R+ Be2 Bd7 Nb7 Rf1 Bc4 Qe8 Rg5 Qea8 Qd4 Bb4 Qc5 Ba5 Rh5 Bb6 Rg5 Nh6 Rh5 Bg4 Rg5 Nf5 Rh5 Ne6 Kd5 Nhg3 Rg5 e4 Rh5 Q8a2 Rg5 Rc8 Rh5 Nc7+ Kc6 Nf8 Rg5 Rh6 Rh5 Rg6 Rg5 Kh7 g8R Nfe6 Rd8 Nf8 Rdd2 Re8 Rd8 Kg8 Ra8 Nh7 Ra3 Rd8 Nfd6+ Kh8 f7 Rdg8 f8R Ba7 Rf6 Rf8 Rb1 Qe2 Rb2 Qf3 Qe5 Qg2 Qe7 Ne3 Rb5 Nef5 Qe5 Bd4 Qc5 Be3 Be1 Bg1 Bf2 Kg7 Nf7 Kg8 Ne5+ Kh8 Nf7+
1Bk1NRq1/3p1b1r/7N/1pBp4/1Q1Nbn1q/K1Bp2R1/2b2bn1/2r1n1N1 b - - 0 1 illegal: No proof kernel
Bq2r1bB/1r6/2pB4/1N2nQ2/pb2Bk1K/4qrp1/2N3R1/1qR1Q1b1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 a5 e3 fxe3 b3 cxb3 g5 Na6 g6 hxg6 bxa6 g5 Ra4 g4 Ra3 Bb4 Ra1 Bf8 h4 Ke7 d4 Kf6 d5 Kf5 h5 g5 a7 b2 d6 a4 h6 g3 h7 e2 d7 g4 Bg5 g2 Kf2 g3+ Kf3 e1Q Qd2 c6 Bf4 Ne7 Bc7 Rb8 a8B Rb7 Ne2 g1B Nec3 Ng6 Na3 b1Q Ra2 Bb4 Bd6 Re8 h8B Ne5+ Kg2 f6 Kh3 Qe3 Bd3+ Kf4 Nc2 f5 Nb5 Qb6 d8Q Be6 Qc8 Bg8 Be4 Qa7 Nc7 Qb8 Nb5 Bh2 Qd1 Kg5 Qd7 f4 Na1 f3 Rg2 f2 Nc2 Kf4 Kh4 f1R Qd2 Rf3 Rc1 Bg1 Qe1 Qc7 Qh7 Qb8 Qf5#
2Q1N2K/r5n1/1Q1N1n2/k2b1p1n/3n2rr/1Rq2RNN/1Bq4b/3b1B1q b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 h4 exf4 c4 g5 b4 gxh4 b6 axb6 c5 bxc5 b5 c4 Be3 c3 Bd2 Qc7 Bc1 Qd8 Kf2 f5 Kf3 h5 e4 d5 g4 Kd7 b6 Kc6 b7 Kb6 g5 c2 e5 h3 g6 d3 g7 h4 e6 d2 e7 h2 e8N h3 Bd3 d4 Ne2 Qf6 Ng1 Nc6 b8Q+ Bb7 Bf1 d3 Ra3 Nd4+ Kf2 f3 Ke3 f2 Kf4 Bd6+ Ke3 Rh4 Bb2 c1R Be2 Ra7 Qa8 Rc4 Rb3+ Ka5 Nc3 Bd5 Qb1 d1Q Qc8 d2 Bf1 Qc2 Ne4 d1B Ng3 Bb8 Nd6 Qe5+ Nde4 Nf6 g8N Qc7 Nd6 Rg4 Ne8 Ra4 Nh6 Q7c3+ Bd3 f1Q Nf7 Rb4 Nfd6 Rc4 Nf3 Qfg2 Rg1 h1N Rf1 h2 Ng1 Rh4 Rf3 Qf1 N3e2 Ng3 Nh3 Ngh5 Ng3 h1N Qd8+ Bc7 Qc8 Qb4 Be2 Ng7 Bd3 Qfg2 Bf1 Qbc3+ Bd3 Rh5 Kf4 Rh4+ Kg5 Qf1 Kg6 Bb8 Nh5 Ng3 Be2 Qh1 Bf1 Nge4 Ng3 Nfh5 Kh7 Nef6+ Kh8 Bc7 Nb5 Bf4 Nbd6 Rb4 Nge4 Bh2 Ng3 Nc6 Qc1 Rbg4 Qe3 Nd4 Qe4 Bf7 Qeb7 Bd5 Qb6+
4nBKQ/8/B2p1pQp/1b1Qb3/n6q/3pNRr1/pr4r1/1Q1Rkn1N b - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 h4 b5 f4 exf4 a5 g5 a6 gxh4 Bd2 Bxb4 Ra4 Bf8 Bc1 b4 Ra1 b3 Ra4 Bxa6 Ra1 Bc8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 c4 Kg3 e4 Kf2 g4 a5 c5 d6 g5 f3 c6 h3 e5 h2 g6 b2 c7 a4 g7 h6 e6 a3 e7 a2 e8Q Na6 Nc3 b1R Nge2 Bd7 c8Q Nc5 Bg5 Na4 Ng3 Bb5 Be7 Rb2 Rc1 Ra7 Rg1 h1Q Qg4 Rc7 Qg6 Rd7 Bc4 d3 Re1 Rc7 Re3 Rc6 Qb3 Qd1 Nh1+ Kf1 Qc2 f2 Rf3 Ke1 Qb1 Rb6 Qc6 f1N Qc8 Rg2 Qc5 Bd7 Ba6 Nf6+ Kc4 Rh2 g8Q Nh5 Kd5 Ng7 Q6h7 Ne8 Qc4 Bg7 Bf8 Bf6 Qgg7 Rg8 Qgh8 Rg3 Qg6 Be5 Qc6 f6 Qb7 Bc6+ Ke6 Rhg2 Kf7 Qa8 Kg8 Rbb2 Nd5 Bb5 Ne3 Qc8 Qc6 Qg4 Qd5 Qh4 Rxd1+
n1rQ3R/n2N1BK1/2N1q3/3nr1Q1/k1b2rQ1/4rq1r/4b2r/B1b1QRb1 b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kd2 f5 Kd3 d5 c4 Kd7 e4 Kc6 g4 h5 c5 Kb5 g5 f3 e5 f2 e6 h3 c6 a2 e7 h2 e8Q h4 g6 h3 c7+ Nd7 g7 f4 Ne2 f3 Qe3 Rh5 Nd2 Ne7 g8Q Nc6 Qe4 Qf6 Qg7 Ba3 Qh4 Nb6 Qf4 Qe6 Ng3 Na7 Nde4 Re5 Bg2 f1N Qg6 f2 Ne2 Ne3 Qfg5 f1R Nd2 Rf4 Rg1 h1R Be4 h2 Qe1 Ka4 Rb1 a1B Qeh4 B1b2 Qd8 Bc5 Qg2 Rb8 Qde7 Na8 Qhg3 b5 Qg6 b4 Nb3 Ba6+ Kd2 d3 c8Q d4 Re1 Nd5 Rf1 Bc4 Qcd8 Rc8 Q6g4 Ba3 Bg6 Re3 Na5 b3 Bf7 b2 Nb3 Bb6 Ra1 b1R Bb2 Re1 Qgg5 Re5 Q2g4 Bc5 Rb1 Bb6 Ba1 Bbc5 Nec1 R1e3 Na2 Bb6 Nb4 Bc1+ Kd1 d2 Kc2 d1R Nc6 Rdd3 Qee8 Rh3 Qee7 Rde3 Nc5+ Ka3 Nd7+ Ka4 Rb5 Bc5 Rb8 d3+ Kb1 d2 Kc2 Rg1 Qee8 h1Q Qee7 Rgg3 Qee8 Re2 Qee7 Bg1 Qee8 Ne3+ Kc3 d1B Qee7 Reh2 Qee8 Rff2 Kd4 Nd5 Qee7 Re1 Qee8 Rge3 Qee7 Qf3 Qee8 Qh6 Qee4 Bde2 Ke5 Nf4 Kf5 Qd6 Qe6 Nd5+ Kg6 Qe5 Qee8 Qe6+ Kg7 Qff5 Qh8 Rf4 Qhh4 Re5 Qf2 Qe4 Qe3 Qf3 Qc3 Rd1 Qe1 Rd3 Q5h4 Rde3 Qdg5 Rc7 Rh8 Rc8 Qd8 Rh1 Qhf6 R1h2 Qfg5
b4b2/r4N2/N2Bk3/n1K1N3/QB1p1RqN/nQ1b1rnq/n1bnq2R/8 b - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 Ke7 Kd3 d5 e4 g5 h4 b5 a4 f5 c4 f4 c5 f3 c6 b3 h5 f2 a5 f1B+ Qe2 g4 e5 b2 e6 b4 h6 b3 c7 Bb7 c8Q Nc6 h7 Qd7 a6 Ra7 Bh6 Ba8 Qc7 Na5 Qc8 Nf6 Qc2 Ne4 Be3 Nc3 Bh6 Na2 Na3 b1B Rh4 b2 Nf3 g1Q Bf4 g2 Rh2 g3 Nh4 Kf6 e7 Qh3 Be5+ Ke6 e8N Qf2 Nc4 g1N Ned6 Nf3 Nf7 g2 Nb6 g1N Nd7 Rg8 h8B Rg3 Bhf6 Qfg2 Be7 Qg4 Bb4 Nd2+ Nf3 Q2h3 Bed6+ Ne4 Nde5 Nd2 Bb8 Ndc4 B8d6 Na3 Kd2 d3 Ke3 d2 Qed3 d1Q Qa4 Ne2 Qdb3 Bd3 Rc1 b1N Rc4 Nd2 Rf4 Nec1 Kd4 Bc2 Kc5 Ne2 Nh4 Rf3 Nhg6 Ng3 Nh4 Re7 a7 Bfd3 Rf5 Qe2 Rf4 Bc6 a8N Ra7 Nb6 Ba8 Nbd7 Re3 Nb8 Rf3 Qc3 d4 Na6 Bf5 Qb2 Bfd3 Qbb3+
r1k4Q/4q3/pnnqb1QR/3nq3/1Q3Qr1/4r3/NbKNq2R/q1BBr3 b - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 h4 b5 f4 exf4 a5 g5 a6 gxh4 Bd2 Bxb4 Ra4 Bf8 Bc1 b4 Ra1 b3 Ra4 Bxa6 Ra1 Bc8 Kd2 f5 g4 d5 e4 Kd7 c4 h5 c5 f3 e5 d3 g5 h3 g6 h2 g7 d4 Ra5 f2 Qc2 f4 Qd1 b2 Rb5 h4 Qa4 h3 Qd1 f3 Rb3 a6 Qe1 Rh4 Ne2 Nf6 g8Q Bg7 Nbc3 b1R Rb5 Rb3 Rg1 h1Q Rb6 h2 Ne4 Rg4 e6+ Kc7 e7 Nfd7 e8Q Qe7 Rd6 Nb6 Kd1 d2 Rh6 Be6 Bg2 f1Q c6 f2 Kc2 d1N Rh4 Nc3 Qh8 Ra3 Qd2 Qe1 Rh6 f1Q Bb2 Qf4 Qe3 Ncd5 Qg6 Qfd6 Qf4 Rh3 Bf3 d3+ Kb3 d2 Kc2 d1R N2c3 Qg2+ Nd2 h1Q Na2 Bd4 Rf1 Qee5 Rf2 Qgf1 Be2 Re3 Rg2 Qf2 Rgh2 Rdg1 Bf3 Qf1 Ba3 Qa1 Bb2 Qg2 Bd1 Qe2 Bc1 Bb2 Qhf6 Bg8 Qh8 Kd8 c7+ Kd7 Rh7 Be6 R7h6 Re1 R6h4 Kc6 Rh6 Kb7 c8Q+ Ka7 Qce8 Kb7 Qb5 Nc6 Qbb4 Kc7 Qhh7 Kc8 Qh8+
r1b1nq2/B1Q1Qbp1/1B5N/Kn3nb1/B1qR2b1/1R1q1r2/1k1N3B/3qq3 b - - 0 1 legal: proof: c4 d5 g4 dxc4 e4 f5 h4 fxe4 b4 a5 g5 axb4 g6 hxg6 h5 gxh5 Ke2 h4 Ke1 h3 a4 Kd7 d4 Kc6 Kd2 Kd5 f4 b5 a5 e5 f5 c5 a6 c3+ Kc2 c4 a7 h2 f6 e3 f7 e2 Qd2 e1Q Bh3 e4 Bb2 e3 Qd3 e2 Qe3 Na6 Bf5 Qg3 Na3 e1Q Bg4 Ne7 Qh6 Nc7 Bh3 Ne8 Qc1 b3+ Kb1 b4 Nf3 Nf5 Ne5 Be7 f8B Bg5 Bc5 Rf8 Nf7 Qgf2 Rg1 h1B Nh6 Bf3 Rg3 Bg4 Bb6 Ke4 d5 Rf7 Be3 Kd3 d6 Qfd2 Ra2 c2+ Ka1 c3 d7 Qe7 d8B Qf8 Nb1 Kc4 Ra6 Qd3 Ra4 Qed1 Ba3 b2+ Ka2 Rf6 Bf4 Rf7 Qe3 c1Q Qe7 c2 Nd2+ Kc3 Bb6 b1N Re3 Qe1 Bh2 Qcd1 Bg2 c1Q Bc6 Kc2 Bb2 Rf6 B2d4 Na3 Rg3 Nb5 Re3 Rb8 a8Q Rf7 Qab7 Ra8 Qbc7 Rf6 Nb1 Rf7 Ba7 Rf6 Bdb6 b3+ Ka1 b2+ Ka2 Rf7 Rd4 Rf6 Rg3 Qf4 Nd2 b1B+ Ka1 Qff1 Rh3 Qc4 Rb3 Kc1 Bd7 Be4 Ka2 Qd3 Bc6 Bd5 Bd7 Bf7 Bc6 Nc3+ Ka3 Kc2 Qb4 Nb5+ Ka4 Kc1 Ka5 Kc2 Qbe7 Kc1 Ra3 Kb2 Bd7 Ng3 Rc3 Rf3 Ra3 Nf5 Rc3 Na3 Ba4 Nb5 Rb3+
1n3Qbq/K4bRN/n1rbk2r/QpRr1B2/rBBB1bq1/6q1/4n3/1N6 b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 Ke7 h4 d5 e4 g5 c4 f5 c5 b5 h5 f3 c6 d3 Ke3 a2 Kd4 d2 Kc5 d4 h6 f2 e5 f4 h7 g3 c7 g2 Kb6 g4 e6 d3 Qc2 d1R Nd2 g3 Qb3 f3 Nc4 d2 Qb2 Na6 Na5 Nf6 Rh3 Nd7+ Kc6 Ndb8+ Kb6 Qe8 Ne2 g1N Qe5 g2 Nf4 Ne2 Nc4 g1Q Na3 Qg3 Qc3 Qd8 Rb1 a1B Qa5 Be5 Nh5 Bf4 Nf6 Bd7 Rh1 Be8 Rh5 Bf7 Rc5 Kd6 e7 Ke6 e8B B8d6 Ra1 Ra7 Nb1 Qc8 Ba3 Rc1 Bb4 d1Q Bg2 f1B Bc6 f2 Bge4 Rd8 h8B Bg2 Bd3 f1R Bce4 Rh1 Nh7 Rh6 Bd4 Bh1 Bg6 Bd5 Bc4 Rd7 Bc2 Qh8 c8Q Qdg1 Be4 Qg4 Ra2 Q1g3 Qf8 Rc3 Rc2 Bg8 Rc7 Rd8 Rg7 Ra8 Bb3 Rc6+ Kb7 Bc4 Bf5+ Kd5 Nd2 Bc5 Ne4 Nc7 Qb6 Ra4 Nd2 Nca6 Ka7 Be7 Ba2 Bb3 Rc5+ Kd6 Bfb1 Bbf7 Qa5 Kd7 Bc4 Kd6 Bcd3 Ke6 Bc4+ Rd5 Bc2 Bed6 Nb1 Qe3 B2d3 Qeg3 Bf5+
7q/k1q2N1n/r1Nb1q2/3KB1qb/1B1BQ1R1/Qp3p2/2R2nbn/1b2rB2 b - - 0 1 illegal: No possible last move
3Kn2r/1B3qp1/1n2k1b1/QQ2qr1p/1bn4N/1nR1r1q1/2N2RR1/3Bq1R1 b - - 0 1 legal: proof: g4 a5 d4 f5 Kd2 fxg4 b4 axb4 h3 gxh3 d5 e5 d6 e4 Nc3 e3+ Kd3 cxd6 Nb1 d5 Bd2 exd2 Qe1 d4 Qc1 Bd6 Qd1 Bf8 Ke4 Ke7 Ke5 b5 e4 h5 a4 d5 f4 b3 c4 d3 a5 b2 f5 b4 c5 h2 a6 d4 a7 b3 c6 Qd7 c7 Nf6 Qe2 d1Q Ra4 d2 Qa6 d3 Nc3 b1Q Na2 b2 Nf3 Qe2 Ra3 d1Q Rg1 h1R Nh4 d2 Nb4 Qb3 Ra2 d1N Qa5 Ne3 Nc2 Ne8 f6+ Kf7 Bg2 Rh3 Bf3 Bb4 Bg4 Bb7 c8R Qbe1 Rc3 b1N Rb2 Rg3 Bf3 Qh2 Bd1 Nd2 Ra2 Qd3 Rb2 Nec4+ Kf5 Qde3 e5 Nd7 e6+ Kf8 e7+ Kf7 Ra2 Ndb6 Rb2 Rc8 a8B Qd4 Ra2 Re3 Rb2 Bd5 Bb7 Qhg3 Ra2 Rc5 Rb2 Kg8 Ra2 Be4+ Ke6 Rf5 f7+ Kh7 f8R Kh6 Rf6+ Kg5 Rb2 Qa2 Rf7 Nb3 Rf6 Qe5+ Kf7 Nc7 e8Q Kf4 Qc6 Ne8 Qcc5 Qd5+ Ke7 Qe5+ Kd8 Kg5 Rd6 Bd3 Rd7 Kf6 Qcb5 Be4 Rd2 Ke6 Rdg2 Bd3 Qa8 Qa7 Bbf3 Qf7 Bb7 Rf4 Qaa5 Bg6 Na1 Rf6 Rbf2 Rf5 Nc2
2K1R1Nq/1p3brB/Nq3k2/Bn1b4/p1b1r3/1r1n2q1/1bN3q1/4RNQQ b - - 0 1 legal: proof: f4 g5 d4 e5 d5 exf4 d6 cxd6 Qd2 d5 Qd1 d4 h4 gxh4 b4 a6 b5 axb5 a4 bxa4 Kd2 Ke7 Kd3 f5 Kc4 d5+ Kb5 h5 c4 h3 g4 h4 e4 d3 c5 d2 e5 h2 e6 f3 g5 f2 c6 d4 g6 d3 c7 f4 Kb6 f3 g7 h3 Bg2 f1Q Na3 f2 Qg4 d1Q Be3 d2 Qg5+ Nf6 g8Q Rh7 Nc4 Qf3 Qg3 d1R Bf4 Rb1+ Nb2 Na6 Bd2 Nc5 Qh4 Rg7 Ne2 Qg3 Be4 Nd3 Nd4 Qfg2 Ba5 f1B Nc2 Be2 Qhh7 Ne8 Re1 Kf6 e7 h1Q Bf5 Nd6 e8N+ Ke5 Ra3 Nb5 Nd1 h2 Nde3 Rb3 Nf1 Be6 Ra2 Qf6 c8N Ba3 Nc7 Bb2 Ne7 Re8 Na6 Qfg6 Qh3 Kf6 Be4 Qh6 Bh7 Bh5 Raa1 Bhf7 Re3 Bc4 Rae1 Qhg1 Qh5 h1B Qh2 Nd6+ Kc7 Nb5+ Kd7 Q1f2 Qh8 Qhh4 Qg1 Qh5 R3e2 Qb6 Re5 Qge2 Re3 Bhd5 Re4 Qeg2 Ng8+ Kg5 R4e2 Re4 Kc8 Qhh6 Bf5 Qhf6 Qhh1 Qh6 Re3 Qh8 Bh7 Rd4 Re8 Re4 Nh6 Kf6 Ng8+
1N2n1B1/3n2r1/pkb2B2/1R2Np1q/Knq5/1p1R4/R2r3R/bbQr2Qq b - - 0 1 legal: proof: b4 a5 h4 axb4 a4 g5 d4 gxh4 f4 e5 a5 exf4 a6 bxa6 Be3 c5 Bc1 cxd4 Kd2 h5 g4 d5 e4 Kd7 c4 Kc6 Kc2 f3 Kb3 f2 e5 h3 g5 h4 e6 h2 e7 d3 e8Q+ Kb6 g6 h3 g7 d4 Qe3 d2 Be2 f1Q Qd3 Qe8 Qh7 d3 Ra2 Ra7 Na3 Nf6 g8R Bf5 Qh6 Nd7 Nb5 Bg7 Ka4 b3 Bb2 Rc7 Qa1 d1R Qhc1 d2 Na7 Bb1 Nc6 Qe5 Bd3 Ne8 Nf3 Qh5 Bh7 f5 Nfe5 Bf6 Rg3 Rb7 Rhg1 h1Q Rd3 h2 Nb8 Rg8 Rg6 Rg7 Rh6 Rc7 Bd4+ Rc5 Bb2 Rd5 c5+ Kb7 c6+ Kb6 c7 Qhh3 c8R Bc2 Nf7 Re1 Rg3 d1N Rc5 Nc3+ Kb4 Rd2 Qcb1 Nd5+ Ka4 Nb4 Bg8 Qc4 Rd3 Q3f3 Rh3 Qh5 Qd1 Be5 Qac1 Bb1 Qg4 Red1 Qg1 Qhe4 Bd4 h1B Rh2 Bg2 Bf2 Qa8 Bh4 Ba1 Bf6 Qaf3 Ne5 Qf1 Qe3 Qh1 Qg1 Bc6+ Rb5+
3bKb1b/Bp3Qb1/4NQp1/1r1rq3/N2nq1B1/RR1R1p2/b7/n2kn2R b - - 0 1 legal: proof: d4 h5 b4 c5 f4 cxd4 g4 hxg4 e3 dxe3 f5 a5 f6 axb4 Nh3 Ra5 Ng1 Rf5 Qd3 Rxf6 Qd1 Rf2 a4 f5 c4 Kf7 h4 Kg6 c5 Kh5 a5 e5 c6 d5 a6 b3 a7 d4 a8R e2 Kd2 e1B+ Kd3 g6 Kc4 b2 Kb5 f4 c7 e4 Bg2 e3 R8a6 d3 Na3 b1Q+ Qb3 d2 Qb2 d1N Ra4 e2 Bd2 g3 Re4 Kg4 h5 Nd7 h6 Nc5 h7 Nh6 Ra2 Be6 c8Q Qf6 Bc3 Nb3 Rc4 Qe5+ Kb6 Ne3 Ra1 Qbe4 Bd2 Nc2 Ra2 Nf5 Qd7 Nfd4 Rb4 Nba1 Be3 Bc3 Nb5 e1B Rb3 Rd2 Raa3 f3 Bf1 g2 Nc7 Bh4 Qf7 Ne1 Ne2 g1B Bf2 Bd8 Bh3+ Kg5 Bg4 Bh2 Bg1 Bg7 Bf2 Bb4 Nc3 Bbf8 Be3+ Kh4 Na4 Kg3 Qc3 Kg2 Bg1 Kf1 Qc6 Bd5 Qcf6 Ke2 Bf2 Kd1 Be3 Rg8 h8R Rb2 Rh7 Bf4 R7h2 Rh8 Rg2 Rh5 Rd2+ Kc1 Bg1 Bfh6 Rd3 Bh8 Bf2 B6g7 Be3+ Rd2 Bf2 Kd1 Be3 Bde7 Ne6 Rf5 Rb4 Ba2 Rbb3 Q5d5 Kc7 Bd8+ Kc8 Qd6 Bf2 Rb5 Bg1 Qb8+ Kd7 Qbe5 Ke8 Ne2 Rdc3 Rdd5 Ba7 Nd4 Rd3+
Bq3QnB/n2q4/b1N1Q1nr/R5qR/1b2pB1N/4q1p1/1kpr3n/3B3K b - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 g4 fxe4 d3 cxd3 g5 a5 g6 axb4 Na3 hxg6 Nb1 g5 Qd2 g4 Qc2 Na6 Qd1 Nb8 h4 Kf7 a4 Kf6 f4 c5 Kf2 g5 Kg2 b5 f5 Ke5 h5 Kd4 h6 e5 a5 b3 f6 g3 f7 g4 a6 e3 a7 e4 h7 e2 Bd2 e1Q Qe2 b2 Ra4+ b4 Qd1 c4 Nc3 b1Q Rh5 b3 Na2 b2 Nc1 Ba6 Ra2 c3 Rh1 c2 Be3+ Kc3 Bc5 d2 Rh3 Nd7 Bb6 Bb4 f8B Qg5 Bc4 Rd8 a8B Qee3 Be2 Ne5 Nb3 Ng6 Kh1 Rd5 Qc1 d1Q Na5 Rd2 Nc6 Kb3 Bh6 g2+ Kh2 Kc3 Nf3 g1N Kh1 g3 Ra5 Kb3 Nh4 Nf3+ Bf1 Nh2 Bd4 Qdg4 Be2 Qd7 Be5 Qa2 Bd1 b1N Bf4 Na3 Bg7 Nb5 Qa1 Qb1 Qe5 Na7 Qe6+ Rd5 Nf3 Qb2 Rh5 Qbe5 Nh4 Kb2 Bf8 Qb8 Bh6 Rd6 Bf8 Nf6 Bg7 Rd8 h8Q Rd2 Qh7 Rh8 Qhg8 Rh7 Qf8 Rh6 Nd4 Ng8 Nc6+ Kb1 Bh8 Kc1 Re5 Kb2 Ra5+
5r2/QrpK2n1/4p1B1/1r2RpN1/1B2qQ2/1pn1rn1r/1R4bQ/1N1kb1Q1 b - - 0 1 legal: proof: c4 a5 h4 d5 f4 dxc4 b4 axb4 e4 g5 e5 gxh4 e6 fxe6 f5 exf5 Qc2 e6 Qa4+ Ke7 Qd1 Ke8 Ke2 Ke7 Ke3 Kf6 Kf4 h5 g4 b5 d4 b3 a4 b4 a5 h3 d5 c3 d6 c2 a6 h4 a7 b2 d7 h2 Qf3 b3 Qh3 Bb4 Qg3 h3 Qf2 Be1 Bd3 Bb7 Qe2 Nc6 Qf2 Rb8 a8Q Nd4 Qa7 Nf3 Bd2 c1R Bf1 Rc5 Ra2 Rb5 g5+ Kg6 Qfd4 Kh5 g6 Nf6 g7 Ne8 g8Q Ng7 Bb4 Qh4+ Ke3 Bc6 d8Q R8b7 Q8d6 Be4 Qh7+ Kg4 Be2 Rf8 Q6b6 Kg3 Qc4 Bc6 Qf4+ Kg2 Bd1 Kf1 Kd3 Qg4 Kc4 Qh4 Nc3 b1N Rb2 Bd2 Qbd4 Qe1 Qh8 Qe4 Qh7 Ke1 Qhh6 Ng5 Bh5 Nf3 Qh8 Re5 Bg6 Reb5 Nd5 Kd1 Qhh4 Ne1 Nf3 Nc3 Rf1 h1R Ng5 h2 Qhg3 R5b6 Kc5 Rg1 Qgf2 h1R Q2h2 Rg3 Qdg1 Re3 Rf2 Ra8 Re2 Rf8 Qgf2 Nf3 Qf1+ Be1 Qfg1 Rd3 Re3 Ba4 Ree2 Rb5+ Kc6 Re3 Kd7 Nd4 Qhf2 Rhh3 Q2h2 Nf3 Nb6 Rh5 Nc4 Rh3 Nd2 Rd5+ Ke7 Bc6 Nb1 Rdb5 Qh4 Bd5 Q4f4 Bc4 Kd7 Bd3 Rg2 Bf1 Rge2 Bg2 Rec2 Ne2 Rc5 Nc3 Re5
3NBk2/2B1qQ2/qp2RqB1/1pbr1p1Q/2Bb2R1/2p5/4bNKn/r2b2n1 b - - 0 1 legal: proof: c4 e5 b4 d5 f4 dxc4 g4 exf4 b5 h5 b6 hxg4 d3 cxd3 Na3 axb6 Nb1 b5 Kf2 f5 h4 g5 e4 f3 a4 d2 h5 Qe7 a5 Nd7 e5 Nh6 e6 Ne5 Bc4 g3+ Kf1 f2 a6 g4 a7 Nf3 Nh3 Ng1 Nc3 c6 Qe2 d1B Ra6 Qf6 Ba3 Bc5 Ne4 Kf8 Nhg5 Rh7 Rh3 Rd7 Rh4 Rd5 Kg2 Qe7 Nf7 f1Q+ Kh1 Bd4 Nf2 g2+ Kh2 Bd7 Nd8 Be8 Qf3 c5 Rd6 b6 Bc1 Qd3 Bf4 Qa3 Rc6 Qa6 Bc7 Nf7 h6 Ne5 h7 Bh5 Qe2 Nef3+ Kg3 Qf6 Rd6 Nh2 h8Q+ Ke7 Qh7+ Kf8 Ba2 c4 e7+ Ke8 Rc6 c3 Bc4 Bc5 Re6 Bd4 Kf4 g3 Qg4 Bc5 Qh3 Bhe2 Rg4 Ngf3 Q3h4 g1B Qh3 g2 Kg3 Rb8 a8B Rb7 Nd3 Bgd4 Nf2 Ra7 Q3h4 g1Q+ Kh3 Qf7 Q4h5 Qe1 Kg2 Ng1 Bc6+ Rd7 Reg6 Qf6 B6d5 Rd6 Bg8 Rd5 Bf7+ Kd7 e8B+ Ke7 Rh6 Kf8 Bg6 Ra8 Nh3 Qeh4 Nf2 Ra7 Bgf7 Qe7 Re6 Qhf6 Bg6 Qb7 Rf4 Ra1 Rg4 Qa6 Qf7+
BN3QR1/qq4pK/5B1R/knp4p/2rNN3/p1bN3n/b1Q1rb1q/q7 b - - 0 1 legal: proof: c4 e5 a4 d5 f4 exf4 a5 dxc4 g3 fxg3 a6 gxh2 Bg2 bxa6 Bh3 a5 Bf1 a4 Kf2 Kd7 Ke3 Kc6 Ke4 Kb6 b4 h5 d4 f5+ Kf4 a5 e4 c3 d5 a3 e5 a4 e6 c2 d6 a2 b5 a3 e7 Ra4+ Kg5 f4 Kg6 f3 e8Q f2 d7 Bb4 Qd5 c5 Qf8 Nc6 Bg5 c1B Qdf5 Be3 Bf6 Bc3 Nh3 Na7 Rg1 h1Q Qe4 Qe7 d8N Qh2 Qc2 Ka5 b6 Be6 b7 Rc4 b8N Nb5 Nf4 Nh6 Nd3 Qb7 Nd2 Ng4 Rb1 a1Q Bg2 f1Q Ne4 Nf2 Rb4 Bg8 Ne6 Nh3 Nd4 Bf2 Rb1 Bd5 Bf3 Rg8 Kh7 Qa7 Rb3 Qfb1 Rg6 Qbb2 Rh6 Qbb1 Qe7 Re8 Qf8 Qbb2 Ng3 Bf7 Ba8 Re2 Ne4 Qbb1 Rb4 Qbh1 Ng5 Qhb7 Ne4 Nd6 Rb6 Nb5 Rc6 Rb4 Rc8 Ba2 Qd6 Ra4 Rg8 Rc4 Qf8
Q1q3qr/N3p2b/n2R3R/2nnq3/p5Q1/2p4K/B4RB1/kBQ1bq2 b - - 0 1 legal: proof: c4 b5 e4 f5 a4 fxe4 axb5 g5 c5 d6 Bd3 dxc5 Bc4 Nc6 Bf1 Nb8 b4 a5 h4 gxh4 Na3 a4 Bb2 Ra5 bxa5 Be6 Nc2 Bc8 Nb4 cxb4 Ba3 bxa3 f4 Kd7 Kf2 Ke6 d4 Kd5 g4 h5 Kg2 c5 a6 e3 a7 c4 a8B+ Bb7 f5 a2 b6 e2 g5 e1Q f6 c3 g6 Na6 g7 Qc8 f7 Qe5 Ne2 Kc4+ d5 Nf6 g8B Bh6 f8Q Bd2 Qc1 Kb3 Qg7 Be1 Qg4 Bc6 b7 h3+ Kg1 h4 b8Q+ Bb7 d6+ Nd5 Bg2 h2+ Kf1 h3 d7 Qg3 d8R Qe5 Qa7 Bc6 Rd6 Bd7 Qf3 Bf5 Qg4 Bh7 Be6 Qg8 Be4 Qc8 Bb1 Qg8 Bb7 Qc8 Qa8 Qg8 Qd1+ Kb2 Nd4 Qc8 Nb5 Qg8 Rg1 h1Q Na7 h2 Bf7 Qhe4 Rh1 Qc4+ Kg2 Qcc8 Rf1 h1N Kh3 Ng3 Rff6 Ne4 Rh6 Nec5 Bc6 Ndc7 Bg2 Nd5 Bc2 Nab4 Rc1 a1Q Bb1 Nba6 Rc2+ Kb3 Rf2+ Ka3 Bc2 Ka2 Qc1 Qb1 Be6 Qb5 Bb1+ Ka1 Bf7 Qf1 Be6 Ne3 Bb3 Nd5 B3a2
2R3Q1/3qpqr1/2nrr1b1/RNBQ2Q1/n1N4q/4qR2/bN1q2k1/K3b3 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 c5 d4 cxd4 e5 f5 e6 b5 axb5 a4 Bd3 a3 Be4 fxe4 b6 Qxb6 b5 a2 Kf1 Qxe6 Ke2 Qb6 Ke1 Qd8 Kd2 Kf7 g4 Ke6 c4 Ke5 Kc2 d5 Kb2 h5 b6 d3 b7 d2 f3 Kf4 c5 Kg3 g5 e3 c6 h3 g6 e2 f4 e1Q c7 d4 f5 h4 f6 d3 f7 h2 g7 h3 Qa4 d1Q Nf3 d2 Qb4 Bf5 c8N Nf6 g8R+ Bg7 f8Q Rh6 Qa5 Kg2 Nc3 Qd7 Ne2 Nd5+ Qc3 Bg6 Na7 Nc6 b8Q Nb6 Ne5 Na4+ Ka3 Qg3 Qfd8 Qe3 Rf1 h1B Nc4 h2 Qd3 Bc3 Nb5 Qe1 Qa5 d1R Rgf8 Q1d2 Rc8 Ra6 Rff8 Rh7 Rf3 Rg7 Qd5 Re1 Kb3 Bb4+ Nec3 Re2 Rb1 a1Q Ba3 Rb6 Rb2 Qf1 Ka2 Qff2 Nd1 Qh4 Rc7 Qhf4 Qd8 Qf7 Rc8 Qdc3 Na7 Qec1 Rg3+ Kf1 Qe5 Rb5 Rg5 Bhe4 Qf8 h1Q Rc2 Qh4 Nb2 Rd5 Qg8 Rd6 Qf6+ Qf3 Rc3 Bb1+ Ka1 Ree6 Rf5 Qff4 Rf3+ Kg2 Rb5 Qfe3 Qg5+ Kh2 Rd5 Be1 Qd2+ Kh1 Ra5 Qd1 Qd3 Qdd2 Qdd5 Ba2 Bc5 Kh2 Nb5 Kh1 Qf4 Kg2 Qfg5+
1q1r4/1nQ1Kb2/kN1RN2r/Q1nRb3/3qn2r/qB3q2/pq1Q4/1R1N2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 Kd2 g5 Kd3 d5 b4 Kd7 e4 Kc7 c4 Kb7 h4 a5 e5 f5 b5 g2 b6 a3 e6 f4 e7 f3 e8Q g3 h5 a2 h6 g4 h7 a4 c5 a3 c6+ Ka6 c7 f2 b7 Be6 c8Q Ne7 Qg6 Nd7 Qg8 Bf7 Qcc2 Nc8 b8R Nd6 Rc8 Bg7 Qc5 Nb7 Qcc2 Ndc5+ Kd2+ d3 Ke3 d4+ Kf4 Be5+ Kf5 Rb8 Be2 f1R+ Nf3 g1Q Nd2 g2 Rb1 a1Q Rb5 a2 Nb1 d2 Bc4 g3 Nc3 d3 Bb3 Qe3 Qg5 g1Q Rc6+ Qb6 Qe2 d1Q Rd6 g2 Qed2 Qb2 Qcc1 Qde2 Nd1 Rbd8 Qh5 Re1 Nd4 Qh2 Qc4 g1B Ne6 Q2f3+ Qf4 Qhg3 Qg5 Qed4 Qh5 Ne4 Rbd5 Nec5 Qg5 Re4 Qh5 Rhg8 h8N Rg6 Qg5 Rh6 Ng6 Qa3 Ngf8 Qh2 Nd7 Qhg2 Qc3 Qgb2 Qg7 d2 Qh7 Qc6 Nb6 Qc7 Kg5 Qb8 Qfe3 Bg6 Qc7 Reh4 Qe1 Beh2 Qe5 Bf4+ Kf6 Bf7+ Ke7 Bfh2 Ne3 d1N Qd2 Nc3 Nd1 N3e4 Qf5 Bg3 Qe5 Qda4 Qec3 Qd4 Qb4 Be5 Qbc3 Ka7 Qa5+ Na6 Rc5 Be3 Nc3 Bf2 Ra1 Be3 Rcd5 Bg1 Qb4 Nac5 Rb1 Ka6 Nd1 Rf4 Qbc3 Rfh4 Qa5+
2K1BqQ1/1Q1n1qnb/n1k1Bb2/1r1q1p1n/B1b3rR/Q5q1/8/1N1RrR2 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Nd2 h5 Ndf3 Ke7 Be3 Ke8 Bf2 Ra3 Ne5 Ra8 Kd2 g3 Ng4 gxf2 Ne3 Ra6 g4 Ra3 g5 Ra8 Ng4 hxg4 Kd3 d5 c4 Kd7 a4 b5 h4 g3 e4 b3 a5 g2 h5 b2 g6 b1R e5 b4 e6+ Kc6 g7 f3 e7 b3 e8R b2 h6 Na6 c5 Nf6 g8Q Bg7 h7 Nd7 Ra3 Rb8 Qb3 Bf6 Qf8 Re1 Rh3 Rg8 h8Q Rg4 Rh4 Rb5 Ne2 g1Q Qhg8 Qg3 Ra1 Qdc7 Bh3 f1N Nc3 f2+ Re3 Bb7 Rd1 Ba8 Rf3 b1B+ Qc2 Ba2 Qb2 Qb8 Qe7 Qf8 Nb1 Ne3 Qe4 f1N Qa3 Nf5 Bg2 Ng7 Bh3 Ne3 Rf1 Nef5+ Qf3 Nh5 Bg2 Nab8 a6 Nfg7 a7 Na6 Bh3 Bb7 a8B Bc4+ Kc2 Rge4 Be6 d3+ Kd2 d4 Qg2 Kc7 c6 Rg4 Qf3 Kb6 c7 Be4 c8B Bh7 Be4 Kc7 Bg6 Kb6 Bb7 Kc7 Bc6 Kb6 Kc1 d2+ Kc2 Kc7 Qfb3 Kb6 Kb2 d3+ Ka2 Rb4 Ba4 Rb5 Rf3 Kc6 Rf1 Be7 Kb2 f5 Kc3 Bd8 Be8 Bg5 Rc1 d1Q Qbb4 Qdf3 Rd1 Qd5 Qbb3 Qf7 Qbb2 Qdd6 Qbb4 Qdf8 Qbb2 Nf4 Kd4 d2 Rc1 Be7 Qbb3 Bd8 Qf3+ Kb6 Qa8 Ndc5 Qe4 d1Q+ Ke5 Qd2 Rd1 Nfh5+ Rf4 Bd3 Kd5 Bf6 Rf1 Nd7+ Qc5+ Ka5 Kc6 Bc4 Qf3 Qd4 Qb6+ Kb4 Kb7 Qd3 Kc8 Qd5 Qb8 Kc5 Qa3+ Kc6 Qb7#
2Q1b1k1/b1K5/1p2r2r/QrBqnnbr/N1R3Qn/1NNn4/1bB5/3Bn3 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 Kd2 d5 Kd3 f5 h4 Kf7 e4 g5 c4 f4 h5 g4 c5 b3 a5 b2 h6 f3 h7 f2 a6 Nh6 e5 Be7 a7 Nc6 Be2 f1R Na3 b1R Bf4 Re1 Qc2 Nf5 Bf1 Bg5 Qc4 Bd7 Nh3 g1B Bc1 g2 Be3 g3 Qb4 Be8 Nf2 Nh4 Qa5 Rb5 e6+ Kf8 Ne4 Ne5+ Kc2 d3+ Kc3 d2 Kd4 d1N c6 Rb8 a8N Nf2 c7 Nfd3 c8Q Bh2 Be2 g1N Nd2 g2 Nab1 Ngf3+ Kc3 g1B e7+ Kf7 Nb6 Ra8 Na4 Ra6 Bc5 Rh6 Qg4 d4+ Kc2 b6 Nb3 Qd5 Bd1 Re3 Nbc3 Nfe1+ Kb1 Re4 Ka2 B1e3 Rg1 Bc1 Rg2 Bb2 Rc2 Nf2 Rc1 d3 Rc2 d2 Rc1 Rg8 h8Q Nfd3 Bc2 Rh5 Bd1 Rg6 Rc2 Bd7 Qc8 Rgh6 e8B+ Kg8 Bg6+ Be8 Bf5 Nf7 Bg6 Re6 Be4 Bb8 Bf5 Ba1 Ka3 Ba7 Bg6 Nd6 Rc1 Ne5 Bgc2 Ndf5 Nd4 Rb2 Nb3 Rb1 Kb4 Bb2 Bf3 d1N Be2 Nf2 Bed1 Rc6 Kb5 Nfd3 Ka6 Rhe6 Kb7 Rcd6+ Kc7 Reh6 Qf4 Rde6 Qg4 Ba1 Nd4 Rb5 Nb3 Bb2 Nb1 Nb4 Bd3 Kh8 Rc4 Kg8 B3c2 Nbd3 Nbc3
KRN2q1b/n1Q2N2/5r2/1BR3p1/Rnp1r3/2b5/1qbqQ1NQ/1n1knr2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 Ke7 e4 Ke6 Ke2 Ke5 Ke3 c5 a4 b5 a5 g5 h5 f5 d3 c3 a6 f4+ Ke2 Kd4 a7 g2 e5 g3 Kf3 c2 h6 c1Q h7 b3 e6 c4 e7 b2 e8Q b4 Qc2 b3 Nc3 b1N Na2 b2 Nh3 g1B Qh2 g2 Nc3 Nc6 Nd5 Nb4 Ra5 Qd2 Nb6 Kc3 Ke4 Kc2 d4 f3 d5 f2 d6 Bg7 d7 Ne7 Nf4 Rf8 h8N Rf6 Nf7 Kd1 Rc5 Bh8 Bd3 Rb8 a8R f1R Ra4 Nec6 Qe5 Bb7 Nc8 Qf8 d8Q Bd4 Qdc7 g1N Ng2 Bc3 Qe6 Nf3 Bc2+ Kc1 Qg4 Ne1 Qe2 Na7+ Rc6 Ba6 Rc5 Rbb6 Bb3 Rbd6 Bc2 Rd4+ Ke5 Bb7 Bf5 Nbc2 Bd7 Be4 Bb5 Bd3 Rg1 Re4+ Kd5 Qg8 Rc6 Nb4+ Kc5 Qe8 Kb6 Bc2 Kb7 Qed8 Rc5 Qf8 Qf2 Kd1 Ka8 Na3 Rh1 b1Q Qe3 Qb2 Qe2+ Kc1 Qhg3 Nb1 Rh5 Qe3 Qh2 Qd2 Rh6 R6f2 Rb6 Rf6 Qe3 Kd1 Rb8 Rd4 Qf2 Re4 Qe2+
n3b1bq/Q1r2r1R/2Q1qkqb/bq2p1p1/7n/3B1R1N/2QR2N1/KNr5 b - - 0 1 legal: proof: d4 a5 g4 c5 e4 cxd4 f4 f5 b4 axb4 g5 fxe4 f5 h6 f6 gxf6 g6 f5 Bg5 hxg5 Bg2 f4 Bh3 Rh6 Bf1 Rh8 Kd2 d5 Kc1 b5 Kb2 e5 h4 Ke7 a4 d3 c4 d4 g7 e3 c5 b3 h5 f3 c6 d2 c7 d3 a5 e2 a6 e1B h6 f2 h7 b4 a7 Na6 Nf3 Be6 c8Q Nh6 g8R Nc7 Na3 Nf5 Qb7 Rc8 a8Q Nh4 Rh2 Kf6 Qa5 Bh6 Nd4 Na8 Qa4 Rc1 Qg4 d1B Rg2 d2 Bb5 f1R Rg7 Bg8 Qgd7 Bh5 Ne6 d1Q Qba7 Be8 Nb1 Qd6 Nf4 Qe6 Ra3 Rf3 Qd5 Rf2+ Ka1 b2+ Ka2 Rfc2 Rd2 Rc7 Qc2 Rf7 Rf3 b3+ Ka3 Qdc8 Bd3 Rc7 Qdc6 Qb8 Re2 Ba5 Rd2 Qd8 Nc3 b1Q Nh3+ Nf5 Re7 b2 Rd7 Bgf7 Re7 Rf8 h8N Bg8 Rh7 Rff7 Ng6 Qb8 Ngf4 Nh4 Qd1 Qc2 Nb1 Qc4 Qc2 Qbb5 Nc3 b1Q Ng2+ Qf4 Qb2 Qc2 Nb1 Qf5 Qbc3 Qd1 Q3c4 Qh1 Ka2 Qh2 Nhf4 Qg6 Ka1 Qg1 Qa4 Qgc5 Qb3 Qf8 Qb2 Qfg7 Qbc2 Qh8 Nh3+
2K1b2q/3n2br/2pN4/1B1Bb1q1/1Q1qpn1R/2b2qB1/3rk2r/N1QN3Q b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 gxf4 c4 f5 a4 fxe4 c5 h5 g5 d6 Ra3 dxc5 Rg3 c4 Rg4 hxg4 Kf2 Kf7 h4 Ke6 d4 Kd5 a5 b5 g6 e5 g7 f3 Ke3 b3 h5 c3 h6 g3 a6 c2 h7 f2 a7 b4 Rh5 c6 Rf5 g2 Bb5 f1Q Na3 b2 Ne2 b1R Rg5 g1B+ Kd2 b3 Kc3 e3 Rg6 Ke4 Kc4 Kf3 d5 e4 d6 b2 Kc5 Nf6 g8B Nh5 Rg5 Bd7 Rf5+ Nf4 Bd5 Be8 Rh5 Bh2 Nc3+ e2 Rh4 Bg7 d7 Qc8 d8Q Nd7+ Kd6 Qg2 Qd4 e1B Nd1 Bc3 Qb4 Qe2 Bd2 c1Q Be1 Qee3 Bf2 Qd4 Nc2 Ra1 Qb6 b1Q Q6c5 Ra2 Na1 Qb3 Bg3 Rd2 Qcc4 Rb8 a8N Rb7 Nb6 Qd8 Nc8 Qg5 Nb2 Qh1 Nd1 Ra7 Qcc5 Raa2 Kc7 Rac2 Ba4 Ke2 Nd6 Qb2 Kc8 Qf3 Bf2 Ng6 Be1 Bhe5 Bf2 Nf4 Bg3 Rf8 h8Q Rg8 Qh6 Rh8 Qe6 Rh7 Qh3 Kd3 Qh1 Rh2 Qb3 Rcd2 Qc2+ Ke2 Qc1 Qb6 Qb4 Qbd8+ Kb7 Qdf6 Kc7 Qf8 Kc8 Qh8 Bb5+
3nBn1b/k7/1Qb3N1/2B3K1/4RNQp/b3Q3/nqp3rp/Nr1Bn1nq b - - 0 1 illegal: No possible last move
BBR1nk2/n2rR1b1/nR2R1b1/3B1Q2/b1K1n2N/6br/3qr2r/3b2Rq b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 f5 Kd3 b5 c4 g5 a4 d5 h4 b3 e4 b2 e5 b1N c5 g4 h5 f4 a5 b4 a6 b3 a7 b2 c6 f3 h6 f2 c7 Bd7 c8B Nc3 h7 b1B+ Qc2 Nf6 e6 Nb5 e7 Na6 Bg5 Bg7 Be2 f1N Nh3 g1Q Bd2 g2 Ng5 g3 Bb4 Nd2 Bg4 Nde4 Rh3 Qh1 Nf7 g1R Bf3 g2 Bd1 Re1 Ba5 g1B Re3 Bf2 Bf3 Bg3 Ng5 Re2 Bb7 Rb8 a8R Na7 Bb6 Ba4 Bc7 Rc8 Bb8 Rc7 Bc6+ Rd7 Bg2 Qa5 Nf3 Kf7 Nh4 Ne8 Bf3 Rh2 Re1 Rh3 Ke2 d3+ Ke3 d2 Kd3 d4 Kc4 d1B Bd5+ Kf6 Rg1 d3 Ra2 d2 Rb2 Bf8 Rb6+ Kg7 Re6 Kf7 Qd3 Bg7 Qf1 Ng5 Qf2 Bg6 Qc5 Ne4 Qb5 N8f6 e8R Rh2 R8e7+ Kf8 Qc5 Ne8 Bg2 Bdh5 Bf3 d1R Qf2 Re1 Bg2+ N4f6 Qf5 Re2 Bgf3 Qd2 Bg2 Rg8 h8R Bf3 Rh6 Rh8 Qg4 Ne4 Qf5+ Bf7 Rb6 Bg4 Rhe6 Rh6 Nf3 R6h3 Nh4 Bf3 Bd6 Bg4 Rc8 Bh5 Bb8 Bg4 Qg5 Bg6 Qf5+ Nf6 Bb7 Re1 Rbd6 Bgd1 Ba8 Re3 Bgd5 Ree2 Qg4 Ne4 Rb6 Qf4 Qh5 Qd2 Qf5+
1bB3bk/2qB2r1/KQq2B2/1N4nb/5bb1/R4n2/pqq1B1rq/1NB3N1 b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 hxg4 f6 g3 Bb2 g2 Ra3 exf6 Bc1 f5 Rd3 f4 Rg3 fxg3 Kd2 a5 Kd3 d5 h4 g5 c4 f5 e4 Kf7 h5 Kg7 b5 a3 e5 a2 e6 a1Q e7 g4 e8B a4 c5 a3 c6 a2 b6 f4 b7 f3 c7 f2 Bf4 Bd6 Rh2 Qb2 Nh3 g1Q Ba4 g2 Qe2 g3 Bd2 Nd7 b8N Rh7 h6+ Kh8 Qe5+ Rg7 h7 Ngf6 Nc6 Qh1 Qe7 g1B Bh6 g2 Ne5 Ne4 Bf4 Ng5 Be2 f1B Nc4 Be3 Bc2 g1Q Bg3 Bef4 Rf2 Qgh2 Qe3 Ne5+ Kd2 d3 Rg2 d4 Ng1 Bg4 c8B Bb8 Nd6 Qc7 Nb5 Bh5 Rf2 Qhc6 Rf3 Bh3 Bf2 Be6 Bd7 Bg8 Bh4 Ne6 Bg5 Ra7 Bh6 Rg2 Bc8 Ng5 Rh3 Qa1 Bb3 Rb7 Bbe6 Ra7 Bed7 Nef3+ Kd1 d2 Qf2 Bc4 Kc2 Bg8+ Kd3 d1B Qe3 Bg4 Qe6 Qb2 Qd6 Ne6 Qc5 Rb7 Kc4 d3 Bg5 d2 Bh6 Nfd4 Ra3 Nf3 Bg5 Qf6 Bh6 Neg5+ Kb4 Qa1 Qb6 Qb2+ Ka5 Bh5 Bd3 Be2 Ka6 d1Q Bc4 Qdc2 Bd3 Nd2 Bc4 Beg4 Be2 Ne6 Bg5 Nf3 Bh6 Be5 Bd2 Bf4 Bc1 Neg5 Be6 Qd8 Bf5 Re7 Bfe6 Qdc7 Bed7 Kg7 h8B+ Kh7 Be5 Rg7 Bc3 Kh8 Bf6
BQR1rr2/4nBn1/1b2RK2/n7/BbN1r1q1/1n1q1b2/2rp1R2/B2k1B1q b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 a4 f5+ Kf3 Kd5 h4 Kc4 e4+ Kc3 h5 b5 a5 d5 h6 f4 h7 g4+ Ke2 d3+ Ke1 f3 e5 d4 e6 b3 e7 b2 e8B b1Q a6 b4 a7 b3 Rh2 b2 Ba4 Bb7 Bc6 Ne7 Bb5 Nbc6 Bg5 Rc8 a8B Na5 Nh3 g1Q Be3 g2 Ra2 g3 Qc1 d2+ Kd1 f2 Ke2 d1N Bc6 d3+ Kf3 d2 Ke4 Qd3+ Ke5 Nb3 Be8 Bf3 Bg5 Ne3 Ra6 N3f5 Ba4 Ng7 Nf4 Rc4 Rd6 Re4+ Kf6 Qh1 Bh4 g1R Ng6 g2 Re6 Rg8 Qe1 Qd1 h8R b1N Ne5 Na3 Nc4 Q1e2 Qb1 Qd1 Nb6 Nc4 Bg3 Nca5 Nc4 Ng6 Bb8 Bb4 Bg3 Rb8 Rc8 Ne7 Be5+ Qd4 Be2 f1R Bd3 Rf2 Be2 Re1 Bf1 g1B Rg2 Rfe2 Rf2 R2e3 Be8 Qe2 Bf7 Qd3 Rcc6 Rf8 Rc8 Bc5 Qb2+ Kb4 Qb1 Rc1 Qb2 Ree1 Qb1 Qd7 Ba1 Ka4 Qb2 Bb4 Qe5 R1e2 Qb8 Q7d4+ Ne5 Qd7 c4 Rc2 c5 Ka3 c6 Re1 Rh2 Bb6 c7 Ka2 Rf2 Kb1 Nc4 Kc1 Re8 R1e3 c8B Kd1 Ba6 Re1 Bb5 R1e2 Ba4 R2e3 Rd6 Qg4 Re6 Rd4 Rc6 Rd8 Re6 Rc8 Rd8 Re4 Rd4 Rce8 Rd8 B4c5 Rc8 Bd6 B4c6 Bb4 Ba4
1b1NRr2/q1n4R/2b3Kb/b3Q1b1/BRRq1pr1/B7/R1n2q2/3k1Bqb b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 a4 Kc3 e4 g5 h4 b5 e5 d5+ e6 d3 h5 d2 a5 g4 a6 b3 h6 d4 a7 d3 h7 b4 Nh3 g1B Qf3 d1B Ng5 g2 Ra5 g3 Bb2+ Kd2 c4 Nf6 c5 Nd5 c6 Bd7 c7 Be3 c8B g1B Nh3 g2 Bf6 b2 Bd4 b1Q Qg3 b3 Bf6 b2 Qd6 Nb4 Qe5 Bg5 Rd5 N8a6 Qe4 Qe7 Nf4 Bb6 Rd4 g1B Ng6 Bf3 Be5 Qe1 Rc4 b1Q Rh4 Bh2 Bg2 Nc2 Rc7 Qf2 Nf4 Qbg1 Bf1 Bh1 Bb2 f6 Kg6 f5 Rc5 Bg7 Rc6 Rf8 h8R B7h6 Rh7 Rb8 a8R Bc7 Ra7 Rb4 Qd5 Ke1 Rb6 d2 Bb7 d1Q Bc6 Qec5 e7 Qce3 Bcb5 Bc6 e8R Qdd2 Rbb8 Kd1 Ne6 Bcd8 Rb6 Bb8 Qe5 Bdc7 Nd8 Rf4 Rh3 Rg4 Rg3 Qa3 Rc3 f4 Rc4 Qdd4 Rbb7 Bb6 Ra8 Nc7 Raa7 Qac5 Ra2 Ba5 Ba3 Qb6 Ba4 Qa7 Rbb4
1Nq2k1r/7r/2QB4/3rR1Br/3N2rb/2p2Kn1/brp1Nnr1/1b1B1NN1 b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 h3 b5 Nf3 Rh4 e4 g1R Ke2 c5 d4 f5 d5 g5 d6 g4 e5 b3 e6 g2 a5 g3 a6 b4 a7 b2 e7 b3 Qd4 f4 Nbd2 b1R Qc3 b2 Qe3 Na6 Ne1 Nb4 Qc3 f3+ Ke3 f2 Nef3 Rh7 Be2 f1R Bd1 Nh6 d7+ Kf7 e8N Be7 Rh2 Rh1 Nc7 g1R Nd5 g2 Nf4 Nd3 Ne2 Nf5+ Ke4 Qh8 d8N+ Kg8 Qf6 Be6 Nc6 Re8 a8N Rf2 Bb3 Rd1 Nb6 g1R Nf1 Rg4+ Bf4 Rd8 Nd7 Rfg2 Nfg1 Nf2+ Kf3 Ng3 Ndb8 R1d2 Qh6 Rbd1 Qf6 b1B Qc3 Ra2 Bd6 Rb2 Qc1 Rdd2 Bd1 Kg7 Qc2 Qe8 Qc1 Qd7 Qc2 Rdh8 Qc1 Kf8 Qc3 Rd5 Ncd4 Qc8 Qc2 Re5 Qa4 c3 Qa6 c4 Qc6 c2 h4 c3 h5 Rhg8 h6 Rhg7 h7 Bea2 h8B Rh7 Bf6 Rgh8 Rh5 Rd5 Re5 R1h5 Bg7+ Kf7 Bh6 Bh4 Bg5 Kg7 Bc7 Kf8 Bd6+
1n2N1n1/2Nbk1b1/2N2q2/rrqn2b1/1B6/Nn2N1p1/1p6/BKQ1BRnn b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 c5 d4 cxd4 a4 f5 Bb5 fxe4 f5 Nc6 Ra3 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Be2 Na6 Bf3 Nb8 Bg4 hxg4 Kd2 e5 h4 d5 c4 b5 Kc2 g3 a5 f3 f6 e3 h5 b3+ Kb2 f2 g6 f1N c5 e2 h6 e1B g7 d3 a6 d2 c6 b4 h7 e4 c7 e3 a7 d4 f7+ Ke7 Nf3 e2 Rg1 d3 Ne5 Bd7 Nc3 Ne3 Rg2 Nd5 Qc2 d1N+ Ka1 d2 Rf2 b2+ Kb1 Qc8 Rf4 Nf2 Nd1 Nh1 Ne3 d1Q Rf1 Qd4 N5c4 Qf6 Na3 Bd2 Qd1 e1N Qc2 Bc3 Bd2 Nf3 Be1 Bd2 Qc1 Ng1 Rf5 Nc6 Rf1 Rb8 a8N Rb5 Rf3 Nb8 Rf5 Qb7 Rf1 Qbc6 c8N+ Ke6 Nac4 Qc5 N8d6 Ke7 Ne8 Ra5 Na3 Rb5 Ka2 b1N Nac7 Ra5 Ng2 Bg5 Ne3 Qfd6 Ka1 Nd2 Kb2 Qf6+ Ka2 Nb3 Kb1 Nh6 g8N+ Kd8 Nd1 Bg7 Ne7 Rf8 h8B Ng8 Ne3 Rb5 Nc8 Ra5 Na7 Ke7 Nd6 Rc8 Nde8 Rb5 Ne6 Rc6 N6c7 Ra6 f8B+ Kd8 Bd6 Raa5 Be5 Ke7 B5c3 Nd4 Ba1 b3 Bb4 b2 Be1 B7h6 Bg7 Nb3 Bf8+ Kf7 Bd6 Bf8 Nc6 Bg7 Be5 Kf8 B5c3 Kf7 Bb4 Kf8 Ne5 Ke7 Nc6+
R3nR1K/r7/1nRrq3/r1bbR2Q/1Brp1pB1/N1bRp1b1/3r4/5kB1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 Nc3 e6 Nd5 exf5 Ne3 dxe3 Qd2 f4 Qd4 Ra4 Qd1 Ra8 Ke2 Ke7 Kd3 Kf6 Kd4 Kg5 Ke5 Kh4 c4 d5 a4 g5 c5 b5 c6 f5 a5 g3 h3 g4 a6 b3 a7 f3 c7 f2 Bc4 f1R Bb2 d4 Qc1 b4 Qe1 f4 Bd5 Nf6 Ne2 Rf2 Be6 g2 Bg8 g1B Ra6 g3 Nc3 g2 Qe2 Kg3 h4 Qe8+ Be6 Bc5 h5 Rh7 h6 Bh2 Rc6 g1B Nb5 Kg2 Qh5 Rd2 Na3 Bb7 c8R Bg3 Bc3 B1f2 Rd1 b2 Rd8 b3 Bb4 Rf7 h7 b1R h8B b2 Kf5 Rc1 Kg6 b1R e5 Rc3 Bg4 Nbd7 e6 Nb6 e7 Rc4 Rb8 Qc8 e8R Be1 Re5 Qe6 Rf8 Ne8+ Bf6 Kf1 Kh6 Rd8 a8R Ra1 Kg6 Rfd7 Kh6 Rd6 Kh7 R8d7+ Kh8 Rg7 Bh4 Rc7 Nb1 Ra5 Na3 Rf7 Rc1 Rc7 Rc3 Rg7 Rd3 Rf7 Rc7 Bd5 Rcc8 Rfa7 Rc6 Bh2 Bf2 Bg3 Rb8 Rb2 Ra8 Bc3 Bg1 Re2 Rf7 Rd2 Rf8
K1nNn3/1BB1NBk1/2N2n2/N1Nnr1p1/b4b1p/p4r2/1R1p1p2/q1Q4b b - - 0 1 legal: proof: g4 b5 h4 g5 b4 c5 d4 cxd4 a4 bxa4 f4 Nc6 f5 Nb8 f6 exf6 Ra3 Be7 Rg3 gxh4 g5 Bc5 g6 Bf8 Rg5 fxg5 Kd2 d5 Kd3 f5 c4 h5 e4 a5 e5 f4 c5 h3 b5 h2 e6 a3 g7 a2 b6 a1N c6 f3 e7 Kf7 e8N f2 b7 h4 c7 a4 Be2 a3 Nc3 Ne7 g8N Nd7 b8N Nf6 Qd2 Nc2 Nc6 Ra5 Bd1 Bd7 c8B Ne3 Ne4 N3f5 Bb7 Nc8 Bb3 Bd6 Ne2 Bf4 Nge7 Rf8 Ng7 Nfd6 Nc5 Nde8 Nge6 Qb6 Ned8+ Kg7 Rg1 h1B Qc3 Rb5 Na5 Qc7 Be3 Qe5 Rb1 Rf7 Rb2 Bc6 Kd2 d3 Qc1 d4 Ba2 Rf8 Bf7 Bd7 Nc3 Bdc6 Na2 Bd7 Nb4 Bdc6 Kd1 d2 Ke2 d1N Kd3 Nc3 Kc4 d3 Bd4 Qe1 Be5 d2 Bc7 Ncd5 Kd4 Bd7 Nbc6 Qf1 Qc2 Qa1 Qc1 Rb3 Kc4 Re3 Kb5 Re6 Ka6 Re5 Nb8 Ba4 Nbc6 Ncb6 Ka7 Nc8+ Kb8 Bg3 Ng6 Ng4 Be6 Rf3 Nge7 Ngf6 Bf7 Bf4 Ka8
1n1Q1Bn1/1KN3Qb/3b1n2/1Q2r1bq/p3Bk2/3n2rq/2Q2RQ1/1r3R1n b - - 0 1 legal: proof: c4 b5 cxb5 e5 f4 exf4 a4 g5 h4 gxh4 d4 d5 a5 c5 a6 c4 Nf3 c3 Nbd2 c2 Nc4 dxc4 d5 Qxd5 Ng1 c3 Qd3 Qd8 Qd2 Bxa6 Qd1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 h5 b4 a5 b6 h3 b5 h4 b7 h2 b6 h3 Bg2 a4 Ba3 c1N Qc2 f3 Ra2 f2 Bf3 Bd6 Kd5 f1R e4 f5 e5 f4 e6 Qe8 e7 Nd3 Ne2 Rh5 Nd4 Rb1 Rf1 h1Q Nb5 h2 Nc7 Bf5 Bc5 Qc8 e8Q Bh7 Qb5 Ra6 Qg2 c2 Bb4 c1B Raf2 Ra8 Qc6 Rh3 Qc2 Rg3 Ba3 Ra5+ Bc5 Kg6 g5 Kf5 g6 Kg5 g7 Qh3 Be2 f3 Bd1 Na6 Kc6 Kf4 b8Q Be3 Qa7 Nb8+ Kb7 Bc1 Bb4 Re5 Qa6 Qh5 Qb5 Qh3 Rd2 f2 Bf3 Kf5 Re2 Bg5 Ba3 Kf4 Bb4 Nf6 g8Q Qh5 Qg7 Ng8 Rd1 f1N Rf2 Nd2 Rdf1 Ne4 Bc5 Nef6 Bb4 Re4 Ba3 Be5 Bf8 Re3 Ka7 Bd6 b7 Re5 Kb6 Na6 b8Q Qh3 Qd8 Nb8 Kb7 Qh5 Qg1 Qg2 Qh1 Qgh3 Qg2 h1N Be4+
2nn2K1/2q1N1pR/1Q1R1Q1p/qRN5/6Rb/brR2B1q/1q2rk2/q4q2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 e5 b4 exf4 Bb2 a5 Ba3 axb4 h4 Qxh4+ Kd2 bxa3 Qc1 f5 Nh3 b6 Qd1 Bb7 Ng1 Qh2 Ke1 f3 g4 f4 Qd2 Be4 Qd1 Bf5 gxf5 Qh6 Nh3 Qh5 Ng1 Qh2 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 c4 Kg3 e4 d3 f6 d2 c5 b5 e5 f2 f7 f3 e6 b4 a5 a2 a6 b3 c6 h6 c7 b2 c8R Nc6 a7 Ba3 f8Q Rb8 a8R Rb3 e7 Nd8 Be2 f1Q e8R f2 Ra5 Qfh3 Qf6 f1Q Nf3 Kf2 Rb5 Qc7 Nc3 b1Q Na4 Qb2 Qb1 d6 Nc5 d1Q+ Qd3 Qdc1 Qdg6 Qcc3 Rg1 Q3a5 Rd1 a1B Rg4 Ne7+ Ke4 Nd5 Kf5 Nb6 Nd4 d5 Nc6 d4 Ne7 d3 Bf3 d2 Rf8 Qc6 Rc7 Nc8 Re8 Qb7 Qb6 Rf8+ Qgf6 Qb8 Rc6 Qc7 Kg6 Rf7 Rc1 d1Q Rh8 Rf8 Kh7 Re8 Rc3 Qdc1 Nf5 Re2 Kg8 Qh5 Qd6 Qhh3 Rh7 Qbc2 Rcc4 Bf6 Ne7 Q2b2 Rc3 Bh4 Qf6 Qca1 Rd6
Q1nb2R1/2q2nnp/5k2/2p4r/5Q2/2q1r3/B1qqQBn1/1r1QRKNQ b - - 0 1 legal: proof: b4 a5 h4 b5 f4 g5 a4 gxh4 c4 e5 c5 exf4 c6 dxc6 Rh2 c5 Rh1 Bd7 Na3 cxb4 Nc4 bxc4 Rh3 Qf6 Rh1 Bb5 axb5 Qd8 g4 Ke7 e4 f5 d4 c5 b6 c3 e5 f3 g5 b3 d5 h3 b7 b2 g6 b1Q e6 f4 g7 a4 d6+ Kf6 d7 c2 e7 h2 e8Q a3 Ne2 a2 Ng1 f2+ Ke2 f3+ Ke3 Nc6 b8Q Nce7 Qb3 Ra3 Qd2 Nh6 g8Q Nc8 Qe4 Nf7 Qe2 Be7 Qeg4 Qc7 Qb4 Bd8 Bh3 f1N+ Kf2 Ng3 Qf1 Nh5 Qgg2 Ng7 Bh6 c1Q Be3 Qd2+ Qe2 Qbc2 Re1 a1Q Be6 Qac3 Kf1 f2 Q3a4 Ra1 Qaa8 Re8 Ba2 Rb1 Qh3 Re6 Qf4+ Kg6 Kg2 f1N Bf2 Re3 Qhf3 Ng3 Qfd5 N3f5 Kf1 Nh4 Qdb7 Ng2 Qbf3 Be7 d8Q Bg5 Qdd5 Bf6 Qd1 Bd8 Qfe2 Qd6 Nf3 Qc7 Rg1 h1R Qdb7 Rh5 Qbe4+ Nf5 Qed5 Kf6 Qdb7 Nh4 Rg8 Ng2 Qbe4 Q7e5 Ng1 Qc7 Qh2 Ng7 Qh1 Nh4 Qea4 Ng2 Qf4+
1RNQ1K2/2R2n2/q1k3N1/B4rqr/p1b2Q2/1Nb5/nNp1np2/r2r3N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c3 exf4 c4 dxc4 b4 gxh4 e3 a5 b6 Bxb4 Bd3 a4 Bf5 Bf8 Be4 Ra7 Ba8 Rxa8 Ke2 Kd7 Kf3 f5 d4 h5 g4 c5 b7 h3 d5 h4 e4 c3 e5 h2 d6 c2 e6+ Kc6 d7 c4 e7 h3 e8N c3 g5 Qb6 d8Q Qc7 g6 Qe5 g7 Rh5 Qf1 Ra5 Bd2 c1N Nd6 c2 Na3 Ne2 Nac4 Na6 Nb2 Nh6 g8N Nf7 Rb1 Be6 Nc8 Bb4 Be1 Bc4 b8N+ Kb7 Nd7 Bc3 Qf2 Nb4 Nc5+ Kc6 Nb3 Na2 Bd2 Qe7 Qfd4 Qg5 Nge7+ Kb5 Ng6 Kc6 Kf2 f3 Qf4 Rd5 Ke3 f2 Be1 f1Q Bd2 Nec1 Ne2 Rb5 Rg1 h1R Ng3 h2 Rg2 Rg1 Nh1 Ne2 Rg3 Bg7 Ba5 Bc3 Nf2 h1R Rh3 Rh8 Rh7 Rh5 Nh1 Rf8 Rd1 Rd5 Rg7 Rd7 Rd5 Rd6 Rb5 Rd1 Rb8 Qh6 Qfg5 f4+ Ke4 f3 Kf5 f2 Rh7 Ra1 Rg7 Qg2 Rh7 Rgd1 Rg7 Bd3+ Ke6 Bc4+ Ke7 Qd5 Qg4 Qb5 Qf5 Qa6 Qf4 Qg5+ Qf6+ Nd6 Rh7 Qg4 Qf4 Rff5 Rf7 Qg5+ Kf8 Rb5 Rfb7 Nf7 Ra7 Rf5 Rc7#
R1Rbn1n1/K3nbkB/Rn1r4/QN4b1/q3rN1R/4Qnnb/R2b1b2/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 b5 Kd3 f5 c4 Kf7 e4 g5 a4 d5 h4 g2 a5 f4 e5 f3 a6 f2 c5 g3 h5 b3 e6+ Kg7 e7 b4 e8Q b2 a7 g4 c6 b3 c7 Rh6 Qd7+ Be7 Qe8 Nc6 Ra5 Qd7 Ne2 g1B Bh3 f1N Nec3 g2 Rb5 g3 Rh2 Bf2 Ne4 g1B Rb8 g2 Nc5 Bg5 Qee1 Nce7 Qee2 Rd6 Qf3 Qa4 Bd7 Ng3 Nc3 b1B+ Qc2 b2 Bb5 Bh3 c8R Ba2 Qb3 b1N Qe3 Nd2 N3e4 Nf3 Kc2 d3+ Kc3 d2 Qb4 d1N+ Kd3 d4 Nc3 Bf7 Qa5 Be1 Bd7 Bgf2 Bf5 g1B Rb6 Bd2 Nb5 Nc3 Bh7 Ncd5 Ra6 Ndf6 Rg2 Rb8 a8R Ne8 Rh2 Rbb6 Rg2 Re6 Rh2 Re4 h6+ Kf6 Ne6 Rd6 Rg2 Bh2 Nf4 Bhg1 Bg6 Bh2 h7 Kg7 h8R Bhg1 Nd5 Bh2 Bh7 Bhg1 Qb4 Bh2 Kc4 d3+ Kc5 Bc1 Rg1 d2 Ra5 d1N Bg6 Rd8 Kb6 Ne2 R5a6 Ndc3 Re1 Bd2 Ra1 Bc7+ Ka7 Rd6 Qa5 Ng3 Ra2 Bd8 Nf4 Ncd5 Rh4 Nb6 Bh7
1bqN1r1B/4KBR1/3rR2k/1b5r/2nn1r2/1r1rB1r1/Qnq1Bp2/3B2Q1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 f5 Kd3 Kf7 Kc4 Kg6 Kd5 b5 h4 b3 c4 f4 a4 b4 e4 d3 h5+ Kh6 e5 g5 e6 b2 e7 b1Q Kd6 b3 a5 b2 a6 d2 c5 f3 a7 f2 c6 g4 c7 Qc2 Ra4 b1R Ra2 Nf6 Bb2 Ne4+ Ke5 d5 e8B d4 Bfb5 d3 Nf3 g1R Ba3 g2 Rh2 g3 Nd4 Nd6 Qe1 d1R Rh3 d2 Bec6 Bd7 c8B Rb3 Bc1 Nc4+ Kd5 Rd3 Ra6 Bd6 Rh2 Be8 Be6 Qc8 Bf7 Bc7 Bd7+ Nc6 Ke6 Bb8 Rh3 Rh1 Qg1 Rf8 Kf6 Rb3 Ne6 Nd4 Nd8 Rd3 Re6 Rb3 Qh2 g1R Bdc6 g2 Bf3 Rge1 Rg3 g1R Rg7 Rg3 Qg1 Re4 Be2 Reg4 Ba4 Bb5 Ke7+ Rg6 Bg8 Rf4 Bf7 Kg5 h6 Rh5 h7 Kh6 h8B Rgd3 Qg3 Rg1 Qh2 d1N Be3 Rg3 Qg1 Ndb2 Qh1 Bc7 Qg1 Rb8 a8Q Rf6 Qah1 Ra8 Qa1 Bb8 Qhg1 Ra6 Qa2 Rd6 Bd1 Bd7 Bc6 Be8 Bcf3 Bb5 Bg6 Rff5 Bfe2 Rf8 Bf7+
3nN3/2B3r1/1rb1Q2B/1q1qkr2/2b1BN1r/rn1rb3/BK1pR2B/Q2r4 b - - 0 1 illegal: No possible last move
RR1r1r2/5N2/1r2q1q1/bBk1pQ2/2N3nK/2b1Rb2/3rq1bn/R1QbR3 b - - 0 1 legal: proof: d4 a5 g4 c5 e4 cxd4 f4 f5 b4 axb4 g5 fxe4 f5 h6 f6 gxf6 g6 f5 Bg5 hxg5 Bg2 f4 Bh3 Rh6 Bf1 Rh8 Kf2 b5 c4 e5 a4 Ke7 h4 Kd6 g7 e3+ Kg2 f3+ Kg3 e2 h5 e1Q+ Kg4 b3 a5 d3 h6 d2 h7 b4 a6 f2 a7 b2 Ne2 b3 Nbc3 b1R Nc1 b2 Nd5 Qe8 Ra5 Nc6 Kh3 g4+ Kg3 Nd4 Rh3 Nf3 Qb3 d1B Ra3 Nh6 g8R Bb7 Rg6+ Qe6 Rh1 Nh2 Rf6 Qe2 Rf3 Rd8 a8R Kc5 Nc3 d5 R3a4 d4 Re3 d3 Qc2 d2 Kh4 g3 Nb5 g2 Nd6 g1B Nf7 N6g4 Ra1 Bf3 Qf5 Bh6 Rb8 Rhf8 h8R Bf4 Bh3 f1B Nb3+ Kc6 c5 B1g2 Na5+ Kd5 c6 Kc5 Reb3 Bd4 c7 Bc3 Nc4 Ba5 Rd3 Be3 Rg1 Bd4 Re1 Bdc3 Rg8 Bc2 Rh8 d1R Re3 R1d2 Rg8 Bd1 Ra8 Bh1 Bf1 Bhg2 Rh8 Rc1 Rg8 b1Q Rh8 Qe4 c8Q+ Q4c6 Qb7 Qg6 Qb2 Rb1 Qc1 Rb6 Qg5 R8d5 Rc8 Re8 Qf5 Qd3 Ra8 Qce6 Ncd6 Reb8 Re4 Qe3 Bb5 Qe2 Nc4 Rc8 Rd8 Rd7 Re3 R7d3 Rd6 Rf8 Rdd8 Rdd6 Rdb8 R6d4 Qcb1 Rdd8 Qc1
bB3QBN/2prqq1q/B3r3/RBQ1rqk1/4R2n/6bB/1nK2nr1/3r4 b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Na3 bxa3 h6 gxh6 Rb1 h5 Ra1 h4 d4 Ke7 Kd2 Kf6 e4 h5 g4 b5 a5 h3 d5 c3+ Kc2 h4 a6 f3 d6 a2 a7 f2 d7 h2 Qd2 h3 Qd3 b4 Qa6+ Bd6 Kd1 b3 Be2 b2 Nf3 f1Q+ Ne1 b1Q Qb5 c2+ Kd2 Bg3 e5+ Kg5 e6+ f5 e7 Rh6 e8B Nc6 Qa5 Bb7 Bh5 Re6 Bb2 c1R Bd3 Nh6 Qb5 Rd1+ Kc3 Na5 Ba3 Nc4 Ng2 Nb2 Nf4 Qe7 Qc5 Rd8 Be8 Ba8 Ba6 Qe4 Rg1 h1R Ng6 Rh2 Nh8 Rg2 Rh1 Qf2 Re1 h2 Kb3 Qb1 Re4 h1N Bb4 Qf1 Bc3 Nf2 Bd4 Re5 Kc3 f4 Kb3 Bc6 a8B f3 B8b7 Re1 Bc8 Nf5 Kc3 Nh4 Be3+ Kf6 g5+ Kf5 g6 Ba8 Bd4 Kg5 g7 Qc4+ Kd2 Qcf7 g8B Qh7 Kc3 Re3+ Kd2 Qd3+ Kc1 Qb3 Kd2 Qbf7 Kc2 Qff5 Qc3 Re1 Ba7 Rd1 Qc6 Rd6 Qb6 Rde6 Qc5 Qff7 Bb8 Qff5 Re1 a1R Re3 Rd1 Ra3 Qff7 Ra5 Nfd3+ Kc3 f2 Kc2 Qff5 Bb5 Qff7 Bca6 Qff5 Bh5 f1Q+ Be2 Nf2 Bg4 Qef7 Bh3 Qe1 Qa7 Qb4 Qd4 Qbe7 Qc5 Rc8 d8Q Rd7 Qf8 Rcd8 Ra2 Rd1 Ra4 R8d7 Ra5
Q7/2QRb2K/1B1nQbrb/2p2r2/4nq1k/1n3Qq1/2Rqb3/Q1nq2BN b - - 0 1 legal: proof: g4 g5 b4 h5 c4 d5 f4 gxf4 b5 e5 g5 f3 Bh3 dxc4 Bg4 hxg4 Nc3 a6 Nd5 axb5 Nf4 exf4 Kf2 b4 Kf1 Nf6 Ke1 Ng8 Kf2 Ke7 a4 f5 h4 c5 d4 b5 e4 g3+ Ke1 b3 Kd2 c3+ Kd3 b4 a5 b2 a6 b1N e5 f2 e6 f1N g6 Kf6 e7 g2 e8Q b3 g7 f3 h5 f4 Ke4 Kg5 a7 b2 h6 c2 d5 f2 h7 Nc6 d6 Nfd2+ Kd5 f1Q d7 f3 Ke6 f2 Kf7 Nce7 Qf3 Qe1 Nh3+ Kh4 Ra5 f1Q Rh2 g1B Ra6 Bd4 Qf5 Nc3 Rf2 b1Q Rc6 Ne2 Ra6 Nf6 g8Q Nb3 Qe5 Nf5 Qg2 Rg8 Be3 c1B Rd6 Ba6 Q8e6 Be7 Qh1 Qb8 d8B Bc3 Bd4 Bh6 h8Q Qbd1 Rd7 Rg6 Bb6 Nec1 Rc2 Be2 Bg1 Qed2 Nf2+ Qh3 Qd8 Ne4 Qf3 Qg3 Nh1 Bb2 Qeh8 Qbf4 Qc7 Rb8 a8Q Rd8 Rd4 Rd5 Qg7 Re5 Rd7 Nfd6+ Kg8 Rf5 Kh7 Bc3 Qd4 Ba1 Qda4 Baf6 Qa1
nn1NQQ2/4pK1N/1N1r1npq/3B4/b2R1N2/r4rr1/qb1r4/kqR2N2 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Bf1 b4 Ba3 bxa3 Ke2 Kf7 h4 Kf6 f4 b5 c4 d5 c5 d3+ Ke3 b4 Kd4 g3 f5 g6 a5 d2 h5 e3 c6 e2 c7 e1R a6 b3 h6 g2 a7 b2 h7 a2 Kc5 Ke5 f6 d4 f7 d3 Be2 Nf6 Qc2 d1N Kc4 d2 Rh4 Rf1 Bd3 Rf3 Kc5 Bd7 c8N Nc3 Rb4 d1R Qc1 Ncd5 Be4 Nc7 Nh3 g1R Rd4 Ba4 Nb6 Rgg3 Nf4 Bg7 f8N Rd2 Qf1 Qc8 Bc6 Qh3 Bd5 Qh6 Qb5 Rg8 Qe8 Rh8 Nc3 b1Q Nd1 Rg8 Ne3 Bh8 Nf1 Bg7 N8e6 Rf8 h8N Rg8 Qc8 Rd8 Nf8 Rd6 Qe8 Qb3 Rd1 a1Q Rc1 Qba2 Nh7 Q1b1 Nf7+ Kf5 Nd8 Ke5 Rb4 Bh8 Bc4 Bg7 Nh5 Ke4 Bd5+ Kd3 Rh4 Bc2 Rf4 Kc3 Rd4 Kb2 Nf4 Ka1 Qf8 Ba4 Qe8 Nc6 Qf8 Rc8 a8Q Nb8 Qc6 Ra3 Qce8 Rgf3 Rd3 Na8+ Kd4 Rcc3 Ke5 Rg3 Rd4 Rcf3 Ng5 Rd7 Ke6 Rd6+ Kf7 Nh5 Rdc4 Bb2 Rd4 Nf6 Nh7
3r1Br1/1p2Bn2/R4qBp/1n2BQQK/2n1bbNR/1nb5/q1k2q1r/4B3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 e5 dxc4 e6 fxe6 Nf3 e5 Ng1 e4 h4 hxg4 h5 Nf6 h6 Ra5 h7 Qd6 Nc3 Ra6 Nd5 Qd8 Ne3 Ng8 Nf5 Ra8 Nh6 gxh6 Ke2 Kd7 a4 Kc6 f4 Kd5 d4 e5 a5 c5 a6 g3 f5 g2 f6 c3 f7 Kc4 d5 c2 d6 Kc3 d7 c4 a7 e3 Kf3 e2 Kg4 e1B Ra5 b3 Ra2 b2 Ra5 b1N Rc5 e4 Qd5 e3 Qh5 e2 Rb5 Ne7 Qh2 Na3 Rg5 Nd5 Nh3 g1Q+ Kh5 Qf2 Rf5 Qf6 d8B Bd6 f8B Nb5 Ng1 Ne3 Qg3 Rg8 h8B Bf4 Rh2 Nc6 Bc5 Ne5 Qg7 Nf7 Bf8 Bd7 Nh3 Bc6 Rc5 Be4 Bde7 Rd8 a8Q Kd3 Qa6 c3 Rc6 Nc4 Bd2 c1R Qg5 c2 Qa5 Qa7 Bdb4 Bc3 Ra6 Ra1 Rh1 c1N Nf2+ Kc2 Rh4 e1Q Ng4 Nb3 Be2 Qef2 Bd3+ Kb2 Qf5 Rh1 Bb1 Rh2 Bhg7 Bd4 Be1 Bc3 Bc2 Kc1 Bd3 Qa2 Bb1 Q7f2 Qg5 Bc6 Bg6 Be4 Bh8 Kc2 Bhg7 N5d4 Qaf5 Nb5 Bh8 Q6b6 Bd4 Qf6 Be5
kn2br1N/1n3p1n/R1n1R1p1/qR4p1/2rQ2n1/3N1r2/2n2R1Q/RKb3B1 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h5 f6 exf6 g5 fxg5 Bh3 Rh7 Be6 Rh8 Bg4 hxg4 Kd2 Ra3 h4 d5 e4 Kd7 c4 Kc6 Kc2 b5 c5 Kb7 e5 d3+ Kb2 b3 e6 b4 h5 d2 h6 d4 h7 d3 e7 g3 e8Q g2 Rh2 Nf6 Qa4 Bd7 Nh3 g1N Qg4 d1R Nd2 Nf3 Qh4 Ne5 Nf4 Be8 Ne4 d2 Ng6 Rg1 Qh6 Rg4 Nf2 Rg8 Rb1 d1N+ Ka1 Be7 h8R Rf8 Be3 Rd4 Rg8 Nh7 Nh8 Rh4 Bd4 Ne3 Rg2 Re4 Qh2 N3g4 Re1 Rf4 Re2 Rf3 Nd3 Qc7 Qd7 Ra4 Bg1 Ka7 a3 b2+ Ka2 b1N c6+ Bc5 Rgf2 Bd4 Rb2 Be3 Qd4+ Qb6 c7 b3+ Ka1 Bc1 c8R Nc3 Rc5 Rc4 a4 Ne4 a5 Nec6 a6 Nd6 Rb1 b2+ Ka2 Ka8 a7 Kb7 a8R Qb4 Ra1 b1N Ra6 Na3 Rb6+ Ka8 Rf5 Qa5 Rfb5 Nc2+ Kb1 Nb7 Qdf4 Bd7 Qd4 Rd8 Re8 g6 Re3 Rf8 Re6 Be8 Ra6+
1Q2r2q/2nbbr1B/Q4p1R/Q3rk1K/1Qp5/bb2QpB1/8/Nrn2b1N b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Ra3 bxa3 h6 gxh6 Qc2 h5 Qd1 h4 Kf2 Kd7 Kf3 Ke6 Kg4 c5 e4 h5+ Kh3 b5 g4 b4 d4 f3 g5 c3 g6 a2 g7 a1R e5 c2 d5+ Kf5 d6 b3 d7 b2 e6 Ne7 g8Q Nec6 a5 Na6 e7 Nc7 e8Q Be7 a6 Nd4 a7 Rh7 Qe1 Ne2 Bh6 c1B Na3 b1R Nc2 Ra5 Qg7 Ba3 Qeh8 Nc1 Ne2 c4 Rh2 Re5 Qgg3 Qe8 d8Q Bd7 Qd2 Ba4 Qf8 Bb3 Qb8 f6 Qf2 Rf7 Qa5 Qc8 Bf4 Qe8 Qh6 Qh8 Qbb4 Rd8 a8Q Re8 Q8a6 Rh7 Rh1 Rf7 Kh2 h3 Kg3 h2 Qfb6 h4+ Kh3 Ke4 Kg4 h3 Kh4 Kf5 Bg3 Ba4 Qb8 Bb3 Rg1 h1B Na1 h2 Kh5 Bg2 Rh1 Qg7 Qe3 Bh3 Nc3 Qg8 Ne4 Qg7 Bd3 Qg8 Rd1 h1B Rd2 Qg7 Rh2 B1g2 Bc2 Bf1 Nf2+ Bd3 Nh1 Bf1 Rh3 Be4 Bd1 Bc6 Rh4 Bd7 Bc2+ Bd3 Rg4 Qf8 Rg6 Qh8+ Rh6 Ba2 Ba4 Bb3 Bc6 Bf1 Bd5 Rg7 Bg8 Rf7 Bh7+
1bR3BB/3nn2b/1p3Bk1/Q1p1B1Q1/1NBrr3/2n1nK1n/rp2rN2/1q6 b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 d4 c5 e4 g5 Ke2 f5 h4 Kf7 a5 c3 a6 g4 a7 f4 h5 b6 e5 f3+ Ke3 c2 d5 f2 d6 b3 d7 b2 h6 Ne7 h7 Kg6 Bb5 f1N+ Kf4 Ne3 Ne2 g1N e6 g2 Na3 g3 Qd2 Nh3+ Kf3 g1R Bc4 g2 Ng3 Rd1 Ne4 g1R Nf2 Rg4 Rf1 Qe8 d8B Re4 Qa5 Rg8 h8B Nd7 Bc7 Rd2 Bce5 Rdd4 Bd2 c1N Bc3 Ba6 Nc2 Ne2 Nb4 Bh6 Ra1 Bf4 Ra3 Qf7 Ra2 Rae8 a8Q Qh7 Qd5 Ra8 Bef6 Bb8 Ra4 Re8 Ra3 Rd2 Bce5 Nc3 Ra1 Re2 Qd2 Rd8 Rd1 Ng8 e7 Bb5 Qc1 Ba4 Rd6 Bc2 Rc6 Ra6 Rc8 Ra7 Qb5 Ra2 e8B+ Kf5 Qg1 Ne7 Bh5 Bd3 Bg4+ Kg6 Bge6+ Rg4 Ne4 Kh6 Ng5 Rg8 Bd6 Rd4 Ne4 Rg4 Nf2 Bb1 Bh2 Qc2 Qg3 Qc1 Bed5 Bh7 Bg8 Rge4 Qa5 Qb1 Qh4+ Kg6 Bhe5 Red2 Qf4 Re2 Qg5+
2K1n1r1/1B2R3/QB3B2/1p2q1Q1/qk1Nn3/B2b1nb1/1qp1rpp1/rB3R2 b - - 0 1 illegal: No possible last move
r1kR3B/3r3q/1QNb1KQ1/7N/1bbp2r1/pr6/pn4Np/N1Rqn2N b - - 0 1 illegal: No possible last move
n1q1Q1kr/N2r4/B6p/2Qb4/Bpr1rb1n/QK4Np/3Q2bp/q1Q3R1 b - - 0 1 illegal: No proof kernel
1N1Qb1B1/1pb1R3/2Q1n3/1Kpr2Q1/1bn3B1/2NrQ1p1/3p2Qr/q1qk1r2 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 g4 a5 d4 axb4 d5 h5 Ra2 hxg4 c4 b3 Be3 d6 Bd4 Na6 Rc2 cxd4 c5 Nb8 c6 Ra5 Rc4 Ra8 Rc5 dxc5 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 g5 h4 f5 h5 f3 a5 Kf4 e5 Ke3 h6 d3 d6 b2 d7 g3 e6 g4 h7 f4 a6 f2 a7 d2 c7 f3 e7 g2 e8Q+ Ne7 Rh3 g3 Be2 f1Q Qg6 f2 Qf7 Nec6 Qf5 Na6 Rh4 Na5+ Kb5 Nc4 Na3 Bd6 Qe1 Qf6 d8Q Qd4 Qd5 Bd7+ Qc6 Be8 c8B Bc7 Bcg4 Qe5 Qe7 Rd8 a8Q Rd5 Bef3+ Kd3 Ne2 g1B Nc2 b1R+ Nb4+ Ke3 Be6 Qa1 Qad8 Rb3 Bfg4 Rbd3 Qg7 Qc1 Bg8 Qa1 Qc1 Qd1 Qa3 f1R Qgg5+ Kf2 Rh6 Ke1 Re6 Qdc1 Re7 Bd4 Qc3 Bg7 Qd4 Kd1 Qde3 Rdf5 Qd5 Bc3 Qh1 Rfd5 Qg2 Nb8 Na6 Nd7 Nb8 Bb4 B8e6 Nf8 Bf7 Rg8 h8Q Ne6 Qhd4 Rg6 Bg8 Rh6 Qdf6 Rh2 Qf8 Bg6 Qd8 Be8 Nc3+
R5N1/Rnbqpb2/rp2R3/1r6/B2RQ1rn/K4p1R/p1p2k1n/r4Q1B b - - 0 1 illegal: No proof kernel
qq2q1qQ/N1q4r/r2N3R/7N/nB1k4/7K/qR3b1R/1Rqr1Qb1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 a4 b5 e3 Qc7 Bc4 Qd8 Ba2 b3 a5 Bb7 a6 Bf3 Nxf3 bxa2 Ng1 Nc6 Qg4 Ne5 Qd1 Nf3+ Nxf3 b4 Ng1 Rb8 Bd2 Rc8 Bc1 Ra8 Kf1 Ke7 g4 Kf6 Kg2 Ke5 c4 h5 g5 f5 a7 d5 c5 d3 g6 d2 e4 d4 g7 b3 c6 b2 c7 h3+ Kh2 d3 c8Q f3 Qf1 d1Q Nd2 b1Q Kg3 f2 Ne2 f4+ Kh2 f3 Qc6 h4 Qb5+ Bc5 Qc4 Qc7 Qa6 Qa4 Qb5 Ne7 g8N Nc8 Nc3 Rh7 Qd7 Qbb8 Qd8 Qe8 Qe1 f1Q Qe2 f2 Nb5 Nb6 Qe1 Qe2 Qf1 Na4 Rb1 a1B Nf6 Bad4 Ba3 Qg4 Bb4 Qgg8 Nh5 Be3 Nb3 d2 N3d4 d1R Nd6 Qa2 N4b5 Bed4 Qc4 f1Q+ Rb2 Qf3 Qf1 Bf2 Rg1 Qf5 Rg6 Qg4 Rh6 Qee6 Qg8 Qee8 Qh8+ Qgg7 Na3 Kd4 e5 Qgg8 e6+ Ke3 e7 Bd4 Kh1 h2 Nab5 Bc5 Ng7 Bg1 Kg2 h3+ Kg3 h1Q Rh2 Qge6 Nh5 Q6g8+ Kh4 Bb6 Rb2 h2 Kh3 Qhc6 Rb1 Qc1 Rb2 Qef8 e8R+ Qfe7 Rf8 Qee8 Rff2 h1Q+ Rh2 Qhd5 Nc8 Ke4 Rb1 Bbf2 Rb2 Qce5 Nbd6+ Kd4 Rb1 Qbc7 Rb2 Rb8 a8R Rb6 Rb1 Ra6 Rb8 Qa8 Rb7 Qcb8 Na7 Qbc7 Bd2 Qeb8 R7b2 Qbe8 Bb4 Qeb8 Rf6 Qee8 Rh6+
1nBN2KR/2n1rQ2/3rB2B/b3q3/n3qN2/1n2n1n1/N4Qn1/b1Bkb3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 h5 a4 hxg4 Qd3 b6 Qd1 Ba6 Ra2 Bb5 axb5 Bc5 Ra3 Bf8 Ra5 bxa5 Kf2 Ke7 h4 Kf6 c4 Kf5 h5 Ke4 c5 d5 c6 g5 c7 f5 c8Q g3+ Kg2 f3+ Kh3 f2 h6 g2 b6 d3 b7 f4 Kg4 d2 Kh5 Ke3 Kg6 b3 Kf7 d4 h7 d3 Qh3+ f3 Qc8 b2 Qf5 a4 Rh2 g4 Qc8 g3 Nc3 b1Q Qc2 a3 Rh6 a2 Rh2 a1N Bb2 d1N Qg4 d2 Qc8 Nf6 Qg4 Qd5+ Qe6+ Qe5 Rh5 Bg7 Qg6 Nd5 Rf5 Nc7 Qd7 Re8 h8N Ra6 Qa4 Re7+ Kg8 Qbe4 Nf7 Rd6 Qa2 Nb3 Nh3 g1B Rh5 g2 Bc1 Nb2 Rh8 Na4 Nf4 Bh2 Qf6 g1B Bh3 f1N Be6 f2 Nd8 Ng3 Qf7 f1N Qb2 Bf6 Na2 Bf2 Qc2 Be1 Bc8 Nc6 b8B Kf2 Be6 d1N Qb2 Ba5 Ba7+ Ke1 Bae3 Nb8 Qd4 Ndb2 Bed2+ Kd1 Qf2 Nc4 e3 Q4f5 e4 Nce3 Bc8 Ng2 Be6 Qd4 e5 Nfe3 Bc8 Qde4 e6 Nc2 Be3 Ba1 Bed2 Qfe5 Be3 Red7 e7 Bg1 e8B Re7 Bed2 Nce3 Bed7 Bh2 Be6 Bg1 Nh3 Bh2 Q2f6 Bg1 Nf4 Bf2 Qh4 Be1 Qh2 Nh4 Qf2 Nhg2 Ne2 Nef1 Bh6 Nfe3 Nf4
nQ1q3b/n3r3/rRn2nK1/1qB1R1Q1/5rN1/N2r2R1/2n3n1/1N2b1Rk b - - 0 1 illegal: No possible last move, all moves rejected
k3nB2/4BN2/2bQ1nQ1/2rn3n/b5R1/1rr2pR1/Bq3qnK/Q1n2Q2 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nd2 exf6 Nb1 f5 Qd2 f4 Qd3 Qe7 Qd1 Qd8 h4 gxh4 a3 b5 Nc3 b3 Na4 Bb4+ axb4 bxa4 Kf2 d5 g4 Kd7 Kg2 Kc6 e4 Kb7 c4 f5 e5 h5 b5 b2 b6 b1R c5 a3 e6 d3 g5 d2 g6 a2 e7 h3+ Kh2 h4 e8Q d4 g7 d3 Ne2 Qd4 Qea4 Bd7 Qa5 Rh5 Bb2 Na6 Bc3 Nf6 g8Q Nc7 Qb4 Nce8 Nc1 Ra3 c6+ Ka8 c7 Ba4 Qdb3 d1N Q4c4 d2 Qd3 Ne3 Qb2 d1N Bb4 Nc3 Kg1 h2+ Kf2 h3 Rg1 h1B Bf8 h2 Qg6 Bhc6 Qc4 h1Q Rg4 Qf3+ Kg1 Qd2 Nd3 Rc1 Rb1 a1N Qba2 Qb2 Ne5 Nb3 Nf7 Rh3 Qa1 Ncd5 Qb5 Rc5 Bc4 Qfe2 Rf1 Nc1 Ba2 Rb3 Rf3 Ng2 Rc3 Rf3 Kh2 Qe1 Rc4 Qed2 Rg3 Rfc3 Rb4 f3 Rbg4 f4 Rh3 f2 b7+ Ka7 b8B+ Ka8 c8Q f3 Qd7 Qd4 Bbd6 Qdd2 Bde7 f1N+ Kg1 Qe1 Qd6 Ng3+ Kh2 Ngh5 Qf1 Qef2 Rhg3
rqN1BR1Q/q3Qb1R/2p1NbN1/1b1q1k2/1R6/1b3n2/2r1nn1q/1R3K2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 b5 d5 Ba3 dxc4 Bb4 axb4 a5 b6 Ra3 bxa5 Ra1 a4 Qc2 b3 Qxb3 a3 Qa4 Qd4 Qd1 Qd8 g4 Kd7 e4 Ke6 d4 h5 g5 f5 b6 a2 e5 f3 g6 c6 b7 f2+ Ke2 f4 d5+ Kf5 g7 c3 d6 h3 e6 h2 d7 f3+ Ke3 c2 e7 c1N e8N h4 Ba6 f1B Kf2 h3 Be2 Nh6 g8R Ng4+ Ke1 f2+ Kd2 Be7 Rf8+ Bf6 Bf3 Bb5 Nc7 f1B Ke1 Ne2 Na3 Nf2 Rb1 a1Q Nc4 Qa7 Nb6 Bc4 Qd6 Bb3 Bh5 Qe8 d8R Bce6 Qb4 Nd7 b8Q Bf7 Ne6 Ne5 Nc8 Rg8 Qh4 Rg2 Rd4 Qd8 Qb4 Qdc7 Nf3 Qcb8 Rg1 h1Q Qe7 h2 Rb4 Nc1 Qd4 Bb5 Qdd8 Ne2 Kf1 Bg8 Be8 Bf7 Nfg5 Nf3 Nf4 Rg4 Ng6 Rc4 Ne6 Rc2 Qd1 Nh4 Qdd8 Qd5 Rg2 h1Q+ Rg1 Qhh2 Rh1 Qhf4 Rh2 Nf3 Rhh8 Qh2 Rh7 Qde5 Qd4 Qd5 Qa1 Bg5 Qg7 Bf6 Qh8
1B5B/r5Rr/2pQKRb1/Qq3n2/B4q1r/q1NB3b/p1n3k1/Q3br2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 b5 d5 Na3 dxc4 Nc2 b6 Nb4 axb4 a5 bxa5 Qb3 a4 Qc2 b3 Qxb3 a3 Qa4 Kd7 Qd1 Ke8 Kf2 Ke7 Kf3 Kd6 Ke4 h5 d4 f5+ Kf3 Kd5 g4 h3 b6 h4 e3 a2 b7 c3 g5 h2 g6 c6 g7 c2 Qe2 h3 Qd3 Qe7 Be2 Na6 b8B Qa3 Qc3 Ra7 Bd3 Nb4 Ne2 Ne7 Bb2 c1Q Rg1 h1R g8B+ Be6 Rg2 h2 Rg7 Rh4 Bh7 Qd2 Rf1 Nc2 Bb5 Qd3 Ba4 Qb5 Qa5 Bf7 Rf2 Rf1 Bg6 h1R Nc3+ Kc4 e4 Kd3 Bh7 Bg6 e5 R1h2 e6 Rhh1 Kg2 Ke3 d5 f3+ Kg3 R1h2 d6 Rhh1 Rd2 f2 d7 R1h2 d8Q Rhh1 Rd6 f4+ Kg2 Nf5 e7 R1h3 e8Q+ Be7 Qed7 Bf8 Rf6 Bb4 Nb1 Be1 Qd1 Ke4 Q8d6 Ke3 Bg8 Rh7 Bc4 R3h4 Qg4 Ke4 Nc3+ Ke3 Qh3+ f3+ Kh2 Rg1 Ba1 f1B Bd3 Kf2 Bb2 Bg2 Ba1 Rf1 Bb2 Rg4 Qh6 Bh3 Qc1 Rb4 Qa1 Rbh4 Rd7 Bf7 Ne2 Bc3 Rh6 Be1 Bh8 Rg1 Rf6 Bg6 Rg7 Kf1 Be4 f2 Nc3 Ne7 Bf5 Rh1+ Kg3 Kg1 Bg4 Nf5+ Kf4 Kg2 Ke4 Rg1 Kf4 f1Q+ Ke4 Qb7 Ke5 Qbb5+ Ke6 Qf4 Be2 Rf1 Bd3
3R1nr1/2K4n/1N2qn2/2QQ2b1/2npp3/1b1r2Nr/bQ1bRB2/1Nk4N b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 c5 d4 cxd4 e5 f5 e6 b5 axb5 a4 Bd3 a3 Be4 fxe4 b6 Qxb6 b5 a2 Kf1 Qxe6 Ke2 Qb6 Ke1 Qd8 Kd2 Kf7 c4 Kg6 g4 Kg5 c5 Kf4 f3 e5 g5 d5 c6 h5 c7 e3+ Kd3 e4+ Kc2 d3+ Kb3 d2 b6 e2 b7 Ke3 f4 e1B g6 d4 Kc4 h3 Kb5 h2 Kb6 h4 g7 h3 f5 Qe8 f6 Be7 f7 Be6 f8Q Nf6 g8N Nbd7+ Kc6 Nh7 b8Q Ra3 c8N Rd3 Nf6 Rg8 Nh5 Bg5 Qe7 Ndf8+ Kc7 Bb3 Qeb4 Qe6 Nf3 Bd5 Rg1 h1N Nb6 h2 Nh4 Ng3 Qa8 h1R Rg2 Rh3 Qc5 Bc4 Qad5 Bb3 Nf4 Nh5 Ne2 N5f6 Ng3 Bc4 Qa4 Bb3 Nh1 Bc4 Bb2 d1B Bc3 Bd2 Rh2 Bdb3 Nf5+ Kf3 Nfg3 Kf4 Na3 Ke3 Rb1 a1N Re2+ Kf3 Rg1 Nc2 Nb1 Ne3 Qa1 Ba2 Bb4 Bcb3 Rc1 Nc4 Ba5 Bde3 Be1 Bd2 Rc3 Bd1 Ra3 Bdb3 Ra8 Kf4 Rd8 Kf3 Rg2 Ke3 Bf2+ Kf3 Nf5 Ke2 Nfg3+ Kd1 Be1 Na3 Re2 Nc4 Bf2 Kc1 Qb2+
1R1Qb1n1/1b4p1/6r1/1Q1qpKNB/QRnb1N2/Q2p1q2/n3qR2/3k3r b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 cxd4 b5 f5 Ba3 fxe4 Bb4 axb4 a5 b6 Ra3 bxa5 Ra1 a4 Bd3 b3 Bf1 b2 Nc3 b1R Nxb1 a3 Kd2 Kf7 f4 Kf6 h4 Kf5 c4 d5 h5 e5 b6 g3 c5 g2 b7 d3 Ke3 d2 c6 d4+ Ke2 Kg4 h6 a2 c7 e3 Kd3+ e2 Ke4 d3 h7 Ra6 f5 Rg6 f6 Bc5 f7 Nd7 b8R Nb6 f8Q Nc4 Qb3 e1Q+ Ne2 g1Q Qa4 d1B Nd2 Qgg3 Nf3 Bd4 Rab1 a1N Qfa3 Nb3 Ng5 Nc1 R1b4 Na2 Rh2 Qd2 Qb5 Ba4 Rf2 Qd1 Nf4 Bb7+ Qc6 Qh2 c8Q+ Kg3 Bh3 Qd5+ Kf5 Q1f3 Bg4 Bb5 Qb6 Be8 Qb5 Qhg2 Qcc6 Qh2 Rc2 Qhe2 Bh5 Kf2 Qca6 Ke1 Q6a4 Kd1 Ne4 Nf6 Ng5 Rf8 h8Q Rg8 Qh7 Rh8 Qg8 Rhh6 Qf8 Ng8 Qd6 Rh7 Qd8 Rh8 Bg4 Rh1 Bh5 Qef2 Qa7 Qe3 Rf2 Qee2 Q7a4+
qr1bnN2/4RQ2/2B1n3/1r2b1Np/p5kr/n1R2R2/n3Q2p/1Q1K1bR1 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 d5 f4 b5 axb5 g5 c4 dxc4 f5 gxh4 f6 exf6 Bh6 f5 Bd2 f4 Bc3 dxc3 g4 Ke7 b4 Ke6 e4 f5 g5 a5 b6 c2 g6 c1B g7 f3 b5 f4 b7 h3 b6 h2 e5 Kf5 e6 a4 e7 c3 e8Q f2+ Ke2 c2 Qd4 f3+ Kd3 Na6 b8Q Bf4 b7 c1N+ Kc2 Na2 Qde3 Nf6 g8R Be5 Nd2 Be7 Ne4 Nc7 Bb5 f1R Nh3 f2 Qe2 Rb1 Rf8 f1N Bc6 Nd2 Rc1 h6 Nc5 Nc4 Nd7 Na3+ Kd2 Ra5 Rc3 h5 Ng5 Rb4 Rg1 Rh4 Rh1 Kf4 Qg6 Qe8 Qa7 Rb5 b8R Rg8 Kd1 Bb7 Bg2 Ne6 Qb1 Be4 Rb7 Qa8 Rf7 Rb8 Nf8 Bd8 Rbd7 Bf3 Qb7 Bg4 Bc6 Bh3 Rdd3 Bg2 Rf3+ Kg4 Qe7 Bf1 Qe8 Qa7 Re7 Qa8 Qf7 Ne8 Rg1+
6bq/6nr/kN2Bb2/1N1Qp1nQ/2q1Bp2/1Qp1QBq1/2Kb4/1Rnn4 b - - 0 1 legal: proof: c4 a5 h4 d5 b4 axb4 a4 dxc4 h5 b5 h6 b3 Rh4 b4 Rh1 Ra5 Rh3 Rb5 Rh4 gxh6 Rh3 h5 Rh1 h4 axb5 e5 f4 Qg5 f5 Qd8 Ra6 Bg7 Rd6 Qe7 Rd4 Bf8 Rf4 Qd8 e4 f6 Bb2 exf4 e5 Nc6 e6 Nb8 Be5 fxe5 d4 h5 Kd2 c5 g4 b2 g5 b3 b6 c3+ Kd3 h3 b7 c2 e7 Kd7 e8B+ Kc7 d5 Kb6 f6 c1B d6 c4+ Kc3 h4 d7 h2 g6 h3 f7 Be7 f8Q Nh6 g7 Nc6 b8Q+ Ka6 g8B Nf7 Qdd6 Ng5 Qdc7 Bf6 Qh6 Ne7 Qb4 Nf5 Bh5 Ng7 Qcc5 Rh7 Qg6 Qc7 d8Q Be6 Na3 b1Q Bd3 b2 Qd7 Qa1 Bf3 b1N+ Kc2 Qc3+ Kd1 Nd2 Qdd4 Nb3 Bde4 Bd2 Qcd5 Nc1 Qb3 Qd3 Qh5 c3 Qe3 Qcc4 Ne2 Bf7 Rf1 h1N Nd4 h2 Ndb5 Be6 Qe2 Qe3 Qe1 Nf2+ Kc2 Nd1 Qe2 Qf2 Qe3 h1Q Re1 Qg3 Rf1 Qd4 Nc4 Qc5 Nb6 Qc4 Bf7 Qhh3 Be8 Bg8 Bf7 Qhc8 Be6 Bf7 Re1 Qh8 Rf1 Bg8 Qg1 Nf2 Rd1 Ne2 Rb1 Nc1 Qe1 Nd1 Qe3
k2R3B/4QNNp/n7/r1b2NNQ/rp1rr3/1R1prb2/4qbb1/2K3R1 b - - 0 1 legal: proof: f4 a5 b4 g5 a4 e5 d4 exf4 h4 gxh4 e3 c5 Ba6 Nc6 Bc4 Na7 Ba6 Nb5 axb5 axb4 b6 cxd4 Qf3 bxa6 Qe2 Nf6 Qd1 Ng8 Kd2 d5 c4 Kd7 g4 Kc6 g5 Kb7 e4 f5 e5 d3 c5 a5 g6 f3 e6 a4 g7 h3 e7 a3 e8N a2 Qe1 d4 Qe2 f2 Nc7 f1B Bb2 f4 Na6 f3 Rh2 f2 Nc7 Ne7 g8N Bg4 Ne6 Nc6 Nf3 Qe7 Nf4 Ra4 Nh5 Ka8 Qe5 Nb8 c6 Bg2 c7 f1R c8Q Re1 Na3 Re3 Ng5 B4f3 Qcc7 Na6 Rg1 a1B Nh6 Qe8 Rhh1 h2 Nf5 Bc5 Nhg7 Ra5 Kc1 d2+ Kb1 Rf8 Qce7 d1R+ Kc2 Rde1 Nc4 d3+ Kd2 Qh5 Ncd6 Rd8 Ndf7 Rd4 Bc3 R1e2+ Kc1 Rea2 Bb2 R2a4 Bc3 Be4 Bb2 Qe2 Bc3 Bef3 b7+ Ka7 Qd5 Rde4 Be5 Bc3 Bd4 Be1 Qde5 Bf2 b8R+ Nc7 Rd8 Kb7 Rd5 Ka8 Bb2 Na6 Rd8+ Nb8 Rd1 Rd4 Rhg1 h1R Qh2 Rde4 Qh5 Rhh4 Bf6 Rhf4 Rd2 Rg4 Rb2 Rd4 Rb3 Rge4 Ne8 Rd5 Bh8 Rdd4 Rd6 Na6 Neg7 Nc7 Rd5 Na6 Rd8+
Rqr3rb/r1QN2Nb/4p3/2Kbp1Q1/4bQ2/1k3nq1/3N1Bp1/1r1Q2R1 b - - 0 1 illegal: No possible last move
RR3Bnn/1N1Q4/qQp2Q2/p2p4/4n2Q/qq1rBk1K/prb3r1/3R4 b - - 0 1 legal: proof: f4 g5 h4 gxh4 a4 e5 b4 a6 a5 Bc5 b5 Ba7 b6 exf4 bxa7 b6 Ra3 bxa5 Ra1 a4 d4 c6 e3 Qe7 d5 Qc5 d6 Qg5 Bc4 Qd8 Bd5 cxd5 c4 Qe7 c5 Bb7 c6 Kd8 c7+ Ke8 Nd2 Qg5 Nb3 Bc8 Nd4 Qd8 Nc6 dxc6 Kf2 Kd7 g4 Ke6 Kg2 Ke5 d7 Ke4 g5 h5 g6 f5 g7 f3+ Kh3 a5 Ra3 f4 Ra1 f2 Ra2 f1Q+ Rg2 f3 Kh2 a3 Rd2 f2 Qb3 h3 Qb6 a2 Qc5 h4 Ne2 Qd1 Nc3+ Kf3 e4 f1Q e5 Qb3 e6 Qa6 e7 Qf8 d8B Nd7 e8Q Ne5 Qee7 Rb8 a8R Ng6 Rb2 Bf5 c8Q Bc2 Qb6 Rb7 Qed7 Qfa3 Be7 Rh5 Qe6 Nh8 Rd1 Rg5 Nb5 Rb8 Nd6 Rg2+ Kh1 h2 Bf8 Rb7 Qcd7 Rb8 Be3 Rb7 Qa7 Rb4 Qg6 Rd4 Qh6 Rd3 Qf6+ Ke2 Qdb7 Rf2 Bg5 Qba4 Bh6 Ne7 Rb4 Bb1 g8Q Q4b3 Bf4 Kf3 Qgg7 Rb2 Qab8 Bc2 Qfg5 Ng8 Qbd7 Ke2 Kg2 h1N Qdd8 Nf2 Qdf6 Ne4 Qd7 h3+ Kh2 Kf2 Qh4+ Kf3 Qbd8 Nc3 Rbb8 Ne4 Kh1 h2 Qb6 Ke2 Kg2 h1R Nb7 Rg1+ Kh2 Kf3 Kh3 Rg2 Be3+
K5Q1/2rkp3/2pnBqB1/2q1n3/pNN1Bqq1/p5RQ/1b4N1/3N1bb1 b - - 0 1 legal: proof: c4 d5 a4 dxc4 e4 f5 Qf3 b5 Qd1 bxa4 b4 fxe4 Qe2 g5 Qd1 a5 Bd3 a3 Be2 a4 Bf1 Ra5 bxa5 Qd4 Qb3 Qd6 Qd1 Qd8 g4 h6 f4 Qd4 f5 Qc5 Bb2 Qa7 Be5 Qd4 Bf4 Qd8 Ra2 Bb7 Rc2 Bc8 Rc3 Qd6 Rg3 gxf4 g5 Qd4 g6 Qd8 Rg5 hxg5 Ke2 g4 h4 e3 d4 g3 Kf3 g2 Ke4 f3 g7 c3 h5 e2 f6 e1B a6 f2 a7 c2 a8B c1Q h6 Qc6+ d5 Bd2 f7+ Kd7 h7 Bc1 Qh5 Bd2 Nh3 g1Q Bd3 f1Q Nf4 Qcb6 d6 Qbf2 Kd5 Nc6 Qh3+ Qg4 Rg1 Q2e1 Nc3 Na7 Rg3 Nh6 g8B Qef2 Nd1 Nf5 Ng2 Bg7 f8Q Bb2 Qg7 Qf8 Be6+ Kd8 d7 Be3 Bb1 Nd6 Qg8 Nc6 Bg6 Ne5 Bc6 Ba6 Bb7 Nef7 Kc6 Q2g1 Ba8 Qf6 Bb7 Bf1 Ba8 Nf5 Kb7 Ne5 Kb8 Bed4 Be4 Nd6 Ka8 Bc5 Qg7 Rg8 h8N Qff4 Qgh7 Q8f6 Qf7 Re8 Qg8 Qge3 Bgf7 Qc3 Ng6 Rf8 Be8 Bg1 B8f7 Qc5 Be8 Nf3 B8f7 Re8 Ne5 Rf8 Nc4 Ne5 Bfg6 Re8 Ne1 Rf8 Nc2 c6 Nb4 Kc7+ d8N Re8 B6d5 Kc8 Ne6 Rd8 Ng5 Re8 Nf3 Rf8 Nh4 Rd8 Qf7 Rd7 Ng2 Rc7 Qg8+ Kd7 Be6+
k1rq2Q1/Br4br/1rr3r1/2Q5/q1Qr2bb/5R2/2nn2NK/1B1qB1BR b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 c4 d5 f4 Kd7 Kf2 Kc7 Kg2 b5 h4 Kb7 f5 g5 f6 e5 h5 e3 h6 e2 c5 e1B f7 d3 a5 d4 h7 b4 Rh6 d2 Qe2 d1Q Be3 a2 Rc6 b3 Kh1 g3 Bf4 e4 Rg6 g4 Bg5 e3 Rb1 a1Q Qg2+ Nc6 Bf4 d3 Qf3 d2 Ne2 g2+ Kh2 g1R Bh6 b2 Nf4 e2 Qh3 Qaa4 Rg7 Nd4 Qd3 Bh4 Ng2 e1R Be3 Nc2 Qc4 Nf6 Bd3 Ne4 a6+ Ka7 Rc1 b1R c6+ Rb6 c7 Rgf1 Rb1 Rf6 Bg1 Rc6 Rg8 Be6 c8Q Bg7 f8B Bf5 Bfc5 g3+ Kh1 Re2 Rf8 Bg4 Rf3 Rf2 Qf5 Rac8 Ra1 Kb8 a7+ Ka8 Bd4 Re2 Qfc5 Rb7 Bf2 Re3 Be1 Rbb6 Be2 Reb3 Bd3 Rb7 Rc1 R3b6 Ra1 Re8 h8B Ree7 Nf4 g2+ Kh2 Bd4 Be5 Rh7 Bb8 Bg7 Rc1 Nb4 Bb1 Nc2 Bgf2 g1R Ng2 Rf1 Bg1 Rf2 Re3 Rff6 Rf3 Rg6 Bbg3 Qe2 B3f2 d1R Be3 Rd4 B3f2 Re7 Be3 Nd2 Rd1 Kb7 a8Q+ Kc7 Qg8 Qb3 Qe5+ Rdd6 Qa4 Kb7 Qac4 Rb5 Ba7 Ka8 Bgf2 Rd4 Qec5 Reb7 Be3 Rb4 Bg3 Qa4 Rh1 Qd1 Be1 R4b6 Bg1
K3BR2/nBq1qbn1/bb1n1r2/1bB1k1Q1/8/qq1b1Q2/B2q4/N1rR2Q1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Kf6 Kc4 d5+ Kb5 g5 e4 g4 c4 b3 h4 b2 a4 b1Q+ Qb3 d3 c5 d4 a5 d2 h5 d1N a6 d3 c6 d2 h6 Nf2 h7 d1B c7 Nc6 Kb6 Na7 Bh6 Bc5+ Ka5 b5 Rh3 b4 Bg5+ Ke5 Be7 f5 Rh4 f4 Rh3 f3 Rh1 Nf6 Ne2 g1Q Qa2 b3 Nc3 b2 Bc4 g2 Rh3 g3 Be2 Nh5 Qg8 Qd2 Qg6 Ng7 Bc4 Rf8 h8Q Qh2 Qhh6 g1Q Ba2 g2 Qhg5+ Rf5 Rh7 Qge1 Rh8 g1Q Rf8 Qgg3 Qb6 Be6 c8B Bf7 Bb7 Rc8 Qbg6 Be3 Bc5 Ba4 Kb6 Bb5 Na4 Qbd3 Rc1 b1B Rd1 Qgh3 Qg1 Qa3 Qh6 B1d3 Qhg5 Nc6 a7 Rc7 a8Q Na7 Bc6 Rc8 Kb7 Q2g3 Bb4 Bb6 Nc5 Qhh2 Bcd5 Rc6 Nb3 Rc1 Bc5 Qee3 Qh6 Rf6 Na1 Qhh3 Qh4 Qe6 Kb8 Qe7 Qb7 Qc7+ Ka8 Qh3 Qh6 Qe6 Qh4 Qee7 Qhg4 Ba6 Q4g2 Bdb5 Bc6 Qeb3 Qg5+ Ke6 e5 Ne4 Qg6 f2 Q6g5 Nd6 Bh1 f1B Qf3 Ne4 Bg2 Kd5 Bh1 Bfd3 e6+ Nf5 Bg2 Ke5 Bh1 Nd6 Bg2 Qed7 e7 Qde6 e8B Qee7 Qfg4 Qf2 Bb7 Qd2 Q5h4 Ng7 Qf3 Bb1 Qh6 B1d3 Qhg5+
K4kb1/1B1q1N1q/n1q2q2/RR1b1bQ1/bq1r3n/b3RBR1/1Q2q3/2Q3r1 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Nd2 h5 Ndf3 Ke7 Be3 Ke8 Bf2 Ra3 Ne5 Ra8 Kd2 g3 Ng4 gxf2 Ne3 Ra6 g4 Ra3 g5 Ra8 Ng4 hxg4 Kd3 f5 Kc4 b5+ Kd5 f3 e4 g3 c4 f4 h4 b3 a4 g2 h5 b2 a5 b1Q a6 b4 e5 d3 a7 d2 c5 b3 c6 b2 h6 Qf6 c7 Ba3 h7 Nh6 g6 Rg8 h8R Na6 g7 Nf5 e6 Nh4 e7 Qh7 Bb5 b1Q Ba4 f1B Qc1 d1Q+ Qd2 f2 Bc6 f3 Rh3 Qb4 Ne2 g1Q Rc1 Qgg6 Ra1 Bg2 Ng3 f1B Ne4 f2 Bb7 d6 Kc6 Bf5 Qd4 Rd8 a8B Bc4 c8Q f1Q Qb2 Qfe2 Rg3 Kf7 e8R d5+ Re6 d4 Qc7+ Rd7 Qf4 d3 Qfc1 d2 Ra2 Bb5+ Kb6 Ba4+ Ka7 Rd4 Rb6 Qf8 Rb5 Qb4 Ng5+ Ke7 Ra1 Bd5 Nf7 Qc6 Ra2 Qgd6 Ra1 Qdd7 Ra2 Qdf1 Ra1 d1B Ra2 Rc8 g8Q B1b3 Qg6 Rg8 Qgg5+ Kf8 Ra1 Qhg6 Rh6 Qh7 Re6 Qf4 Ree3 Qfd6 Ra2 Qf6 Nd6 Bdc4 Qf4 Qe4 Rh3 Rg1 Rhg3 Bg8 Qg5 Bbe6 Nf7 Bab3 Qc7 Q4c2 Bf3 Bed5 Bb7 Qcc4 Qa1 Bc1 Raa5 Ba3 Ka8 Ba4 Qb2 Qcc5 Qc6 Qcd6 Qc4 Q6c6 Qcc1
r3nNQ1/2BRr1qb/5rn1/N1B3n1/3k1N2/1B1rb1K1/1q4B1/qnb3bQ b - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 e4 Ke7 c4 Ke6 h4 Ke5 c5 f5 h5 g5 a5 d5 h6 b5 a6 g4 h7 d3 c6 f4 c7 d2+ Ke2 f3+ Ke3 b3 a7 b4 Ba3 d4+ Kd3 b2 Nc3 b1Q+ Qc2 d1R+ Kc4 b3 Bc5 d3 Qc1 b2 Rh6 f2 Rh2 d2 Nd5 Qf6 Nh3 g1B Nb6 g2 Nf4 Bf5 c8N g3 Nd6 Qg7 Nb7 Nf6 Na5 Ne8 Rh6 Nc6 Rd6 Bg6 Rd7 Ne7 Kc3 Qa2 Kd3 b1N Ke2 Qb2 Bd6+ Kd4 Kf3 Re1 e5 d1Q+ Be2 f1R+ Kg4 Rg8 h8B Be3 e6 g1N Qc6 g2 Kg3 Nh3 Bc4 g1B Qh1 Ng5 Bb3 Rd8 a8B Bh7 Bg2 Ng6 e7 Ra8 Nh3 Rf6 Nf4 Nc7 e8Q Rd8 Qe7 Ne8 Qf7 Bc1 Bc7+ Bd6 Qf8 Re7 Qf7 Rf8 Qg8 Bge3 Nd5 Bc5 Ne6+ Kd3 Bd6 Bg1 Bc7 B5e3 Ndf4+ Kc3 Bd6 Ra8 Bc7 R8f7 Nf8 Rd6 Be6 Rd3 Bd6 Qa4 Bb3 Qaa1 Bc7 Qd4 Bhe5 Rf6 Bed6 Qe5 Bf7 Kd4 Bb3 Rfe6 Qh5 Qg7 Qh1 Rf6 Bc5+
1b2r2r/1K2n2N/3R1Q1q/1b2N1rR/1R1rn2n/1k1r4/1B1br1Q1/Rb2nQ2 b - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kf4 Kd5 h4 Kc4 Ke5 g5 a4 b5 e4 d5 a5 f4 c3 d3 a6 b3 h5 d4 a7 b4 h6 b2 h7 f3 Qe2 g4 Ra5 b3 Qd1 d2 Rh4 d3 Ra6 f2 Ra3 f1R Rh1 Bb4 Qf3 d1R Qf8 d2 Rh2 Ne7 Rh6 Rf2 Rg6 Ba6 Rd6 Re2 Ke6 Nbc6 e5 Nf5 Nf3 g1R Ra1 g2 Qf6 g3 Ng5 Qb6 Kd7 Nce7 e6 Rae8 a8Q Nh4 Qaf3 Qe3 Kc7 Bb5 Qf1 Ba5+ Kb7 Qf4 Nf3 Qh6 Ng5 Bc7 Q6f3 Bb8 Qf6 Kc5 c4 Kb4 Na3 b1B c5 b2 c6 Kb3 c7 Bg6 c8Q b1N Kb6 Nc3 Qb7 Bb1 Nc4 Ne4 Qd4 Rde1 Qdf2 d1R Ne5 Rd3 Bb2 Red1 Qf6 Rd4 Qa8 R1d3 Qc6 Rh1 Qa8 g1B Kb7 Rhg8 h8R g2 Nh7 Rg5 Nf8 Be3 Nh7 g1N Qa2+ Kb4 Qd5 Bd2 Qc6 Nef5 e7 Ngf3 Qc2 Ne1 Qc6 Reg8 e8R Kb3 Re7 Re8 Rg7 Nc3 Qcg2 Ne4 Rc7 Ne7 Rc4 Rhh3 Nf8 Qg7 Rh5 Qh6 Nh7 Rhf3 Qh8 Rff8 Qhf6 Rh8 Rb4+
1NNrb2N/2r3r1/1K3n1Q/nR1p1rb1/Q6B/1b2rkq1/2qBn1Q1/q6Q b - - 0 1 illegal: No possible last move
n1q2n2/nR2r2q/pBB2k2/1r4n1/1QBrN1Rb/1n1r2Qr/4BR2/3bK3 b - - 0 1 illegal: No possible last move
1r3r1n/1pb3nN/1qr1k3/B2rbb2/7Q/5K1Q/QN3Q1N/Rb1rrr1B b - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 e4 Ke7 Ke2 d5 c4 f5 h4 g5 c5 g4 e5 b3 c6 f4 c7 f3+ Ke1 b2 a5 d3 e6 f2+ Kd2 d4 a6 Nh6 a7 Nc6 h5 Nf7 h6 Rb8 a8N Bg7 h7 Be5 Na3 b1B Qe2 Rf8 Nb6 Nh8 Nf3 g1R Bh3 f1R Bb2 g2 Qf2 g3 Bc3 Kf6 e7 Bf5 e8Q Ne7 Qa4 Ke6 Ba5 Qd6 Nbc4 Qb6 Nb5 Re1 Nc3 Rgf1 Qa2 g1R Bg4 g2 Nd5 Rc1 Nb2 Rc6 Nh2 Re1 Qa3 Rgf1 Bf3 g1B c8Q+ Kf7 Qd8 Ke6 Qa2 Bc7 Ng4 Bgh2 Bg2 Bhe5 Nh2 Nc8 Qdh4 Nd6 Rg1 Ne8 Bh1 Ng7 Qh3 Rd6 Nf6+ Rd5 Qhh4 Rc1 Qe1 Rc6 Kd1 d2 Ke2 d1R Qef2 d3+ Kf3 d2 Qh3 Nf7 h8Q Rde1 Q8h4 d1R Nh7 Nh8 Rg4 Qc5 Rc4 Qb6 Rc1 Bc2 Ra1 Bd3 Q4g3 Bb1 Qgh4
6r1/Q1b2qBn/1N4qn/1qR2r2/p1nR1nB1/qr2RbBB/7Q/b2k1K2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bh3 g3 Bf1 g2 Nc3 cxd6 Ne4 d5 Ng3 fxg3 Bh6 d4 Bg5 Bc5 Bc1 Bf8 b4 Ke7 e4 Kf6 c4 Ke5 h4 f5 b5 d5 c5 a5 h5 g5 b6 g4 b7 d3 h6 Kd4 c6 Kc3 h7 a3 e5 d2+ Ke2 a2 e6 a4 c7 d4 e7 d3+ Ke3 f4+ Ke4 f3 Ke3 f2 e8B Qf6 Bh5 Ra5 Rh3 Nh6 Qf3 Kc2 Be2 d1Q Bd2 f1Q Qe4 Qc1 Bf3 Rg8 h8R Qa3 Qd5 Qf7 Qd4 Bd6 Be2 Nd7 b8B Bb7 c8Q+ Bc7 Rh4 Nf6 Bf3 Rf5 Ne2 g1R Nf4 g2 Nd5 g3 Re1 a1B Re4 Nh7 Bc3 d2 Bfg4 Qb5 Qa7 Ba8 Re2 Rb1 Nb6 g1N Bh3 g2 B5g4 Kd1 Qf8 Bc6 Qd6 Rb3 Qf4 Ba8 Kf2 Bb7 R2e3+ Ne2 Bg7 Bd5 Rb4 Bf3 Qh2 Nf4 Rbe4 Kc2 Qa5 d1N+ Ke1 Nb2 Qa7 Nc4 Kf2 Rd8 Rhe8 Kd1 R8e5 Rg8 Rc5 Kc1 Ke1 g1Q+ Bf1 Qh1 Kf2 Qg6 Bfh3 Qg2+ Ke1 Qga2 Kf1 Kd1 Nc8 Ba5 Bbe5 Bc7 Nb6 Q2b2 Bd6 Qbf6 Be5 Qff7 Bd6 Nd5 Bg3 Nf4 Rd4+
K7/b4R1R/k1QR1p1b/bb5Q/3bb2r/q2nQr2/4NqBR/rNn3r1 b - - 0 1 illegal: No possible last move
1Q1b4/1Q1rn3/pk1rr1Bb/4nrbR/5nb1/5nR1/BKRq4/NQ2n2R b - - 0 1 illegal: No possible last move
5bB1/4n1n1/1q2Rr2/3b3k/QR1Q2b1/2qbn1Q1/RNpb2pK/Q1rB1r2 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 c5 axb4 c6 g5 Qc2 g4 Kd1 g3 Ke1 dxc6 Qb3 c5 Qd1 c4 Bb2 h5 Bd4 Ke7 Bf2 Qe8 Qa4 gxf2+ Kd1 Bg7 g4 Bf8 Kc1 Qd8 Qd1 Ke8 g5 Nf6 Na3 Qd3 Nc2 Qd8 Ne3 Ng8 Ng4 hxg4 e4 c5 d4 f5 Kd2 Kf7 Ke2 Kg6 a4 b5 h4 f3+ Ke3 c3 Kf4 c4 Kg3 f4+ Kh2 c2 d5 c1B e5 b3 a5 c3 a6 b2 e6 b1Q d6 g3+ Kh3 c2 d7 b4 a7 b3 e7 b2 e8R g2 Re1 Qa5 Qd2 Kh5 g6 Nc6 g7 Nh6 g8B Ne7 Qc3 Nhf5 d8Q Ng7+ Re6 Bd2 Ne2 Rh6 Qdd4 Rf6 Ra2 Qe1 Rg1 b1B Kh2 Qb6 Nc1 Qe5 Ba6 f1B Nd3 f2 Nb2 Bd3 Rf1 Rb8 a8Q Rb7 Re1 f1R Re4 f3+ Rf4 f2 Qa4 Qea5 Rb4 Rb8 Qd4 Rb7 Qb8 Rc1 Qg3 f1N+ Kh3 Ne3 Kh2 Rd7 Bb5 Rd5 Bc6 Rdf5 Bf3+ Kh6 Bg4 Rff1 h5 Qac5 Bd1 Qc3 Qe1 Kg5 h6 Kg6 h7 Kg5 Rc6 Bg4 Qg3 Kh6 Re6 Kh5 Ra1 Ba2 h8Q+ Bh7 Qa8 Bd5 Ra2 Kg5 Qa4 Bd3 Qhh3 Kg6 Qe1 Kg5 Qhg3 Kh5 Bf3 Ra1 Qc1 Rb1 Bd1 Ra1 Nc4 Rb1 Qb2 Rc1 Qa1 Qa7 Nb2 Qb8 Re4 Qb6 Re6
R1K4b/Q7/Rq1qBRb1/1b1r2n1/b4Bp1/2BNbkq1/1n2p3/Q2nR2r b - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 Na3 f5 Nc4 fxe4 Ne5 h5 Ng4 hxg4 Kf2 Kf7 h4 Ke6 a4 Ke5 c4 b5 g6 d5 h5 b3 a5 f3 Kg3 b4 h6 e3 a6 Ke4 c5 e5 a7 f2 c6 b2 g7 b1B c7 e2 h7 e1B Rh5 d3 Bd2 d4 Qa4 b3 Bh6 d2 Nh3 d1Q Qa5 d3 Bc1 d2 Bg2+ Qf3+ Kh2 f1B Qa3 d1N Qa5 b2 Qa2 Nc6 Bh1 Bc5 Rh4 Bb5 Nf4 Bd7 c8R Nh6 g8R Be3 Nd3 Nb4 Rg6 Nf7 Ra6 Ng5 Rhh6 Bc3 Rhf6 Qb6 Re8 Rd8 a8Q+ Qc6 Qb8 Qd6 Qa7 Ba4 Qa3 Bdb5 Ref8 Rd7 Ra8 Bbc2 Bd2 b1Q Bg2 Qb3 Rb1 Qbe6 Qa1 Qb6 Bf1 Rd5 Bc1 Qed6 Bg2 Rf8 h8B Rf7 Bf1 Qf4+ Kg2 Rh7 Be2 Rh1 Bd2 Nb2 Re1 Na2 Bd1 Bb1 Bb3 Bd4 Bg7 Nc3 Bh6 Ncd1 Bc3 Rc5 Be6 Rd5 Qd7 Rh4 Qa7 Qg3+ Kf1 Rh1+ Ke2 Nh7 Bf4 Ng5 Rc8 Bg1 Kd2+ Kf3 Ra8 e4 Ne5+ Kf2 Rf7 Be8 Rf8 Bg6 Rf5 Bb5 Nd3+ Kf3 Rff8 Bh8 Rf5 Ba2 Rf6 e3+ Kc2 e2 Kd2 Qbd8 Kc2 Bb1+ Kb3 Qe5 Ka3 Bc2 Kb4 Qdb8 Ka5 Bca4 Qh7 Be3 Qb7 Bc1 Kb6 Qd8+ Qc7 Qed6+ Kb7 Be3 Qf7 Qa5 Kc8 Qab6 Qa7
1Rrb4/2Bn4/1R1Nqrq1/BK6/1b1pqnp1/1rqBQ3/2b5/R2k1qQB b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 a4 Ke4 h4 g5 a5 f5 a6 b5+ Kb3 d5 c4 d3 c5 d2 e3 f4 a7 f3 h5 f2 c6 Nf6 c7 Qe8 h6 Qe6 h7 Nbd7 Ra3 Nh5 Qe2 d1Q+ Qc2+ Qd3+ Qc3 Nf4 Ne2 Kf3 e4 g1B e5 g2 Kb2 b3 Qd4 Bb4 Ra1 Rf8 h8B Rf6 Nc3 g4 Rh6 Qe4 Bd3 f1Q Qc5 d4 Bd2 Bf2 Bg7 Rb8 a8B g1Q Qd6 Bb7 c8R Qg3 Rg8 Qg6 Ne4 Rc8 Qd5 Qgh3 Nd6+ Qe4 Qc4 Bh4 Qc1 Qg6 Bf8 Be4 Be7 Kf2 Bd8 Bf5 Bh1 Qg3 Bb1 Ke2 Bc7 Bc2 Be1 Qgh3 Qe3+ Kd1 Qg1 Ba5 Ka3 b4+ Ka4 Qc3 Nc4 b2+ Kb5 b3 Rd8 Qff3 Nd6 Bb4 Rg8 Qfe4 Rgh8 Qee8 e6 Qeg8 e7 Qge6 e8Q Bg5 Ba2+ b1R Rf8 b2 Bc4 Rf7 Bd3 Bd8 Rh5 Rf6 Rc5 Rc1 Rc6 b1Q Rg8 Ra8 Rb6 Ra3 Qf8 Rb3 Qh6 Qa2 Rh8 Qaa8 Re8 Qe2 Qh3 Qf1 Qhe3 Qae4 Rf8 Be7 Rc8 Bd8 Rcb8 Qd2 Nc4 Ba3+ Ka4 Bb1 Nd6 Qc2 Ba5 Bb4 Kb5 Qb2 Nc8 Rc6 Nd6 Qc3 R8b7 Rc4 Bb8 Rc8 Bc7 Qge8 Ra2 Bc2 Rb8 Q8g6 Ra1+
1R5b/1qbQnQ2/1n1k1nq1/1q1p4/3pq1R1/2N5/1B1NNqrN/Kb1r2R1 b - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 Ke7 a4 d5 h4 f5 c4 g5 Kc2 b5 Kb2 g4 e4 f4 e5 b3 e6 f3 h5 f2 a5 f1N c5 b4 h6 Qb6 c6 Nd2 c7 Nd7 h7 Qb7 a6 Ndf6 a7 Bg7 Ra3 Kd6 e7 Bf5 e8Q Ne7 c8R Nc4+ Ka1 b2+ Ka2 Rg8 h8N Nb6 Nh3 g1B Qda4 g2 Rb3 g3 Nd2 Bh2 Nf4 g1Q Nhg6 g2 Rg3 Bh8 Rb8 Qf2 Rg4 g1Q Qf7 Qgf1 Nh4 Qb5 Rhg1 b3+ Ka3 b1Q Ne2 b2 Nhf3 Bg3 Nh2 Qe4 Ka2 Be5 Re8 Rc8 a8N Rg5 Nc7 b1Q+ Ka3 Bh7 Bb2 Qg6 Qa7 Qbe4 Ka2 Bf4 Ka1 Ra8 Rh4 Rg2 Rg4 Bg3 Qa2 Ra3 Rb8 Rd3 Qa4 Be5 Na6 Bf4 Nb4 Be5 Na2 Bg3 Nb1 Rd1 Qa7 Kd7 Nac3 Bc7 Qa4 Kc6 Qa7 Kd6 Qa4 Qc4 Qae8 Qb5 Qd7+ Kc5 Qf8 Qe8 Nf1 Qef3 Qf5 Kd6 Nh2 Qf7 Q5c8 Be4 Qfe8 Qg6 Qf7 Bd3 Qce8 Qfe4 Qd7+ Kc5 Bc1 Bc2 Nd2 Bb1 Qd8 Kc6 Bb2 Kc5 Qc8 Kd6 Qd7+
1B1NB3/k1n5/3b1QRQ/pqn1r3/1r2bKN1/1Qq1rN2/3b3p/q1r3Nr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 c5 h5 cxd4 Rh2 e5 Rh1 exf4 b4 h6 g4 Qc7 Rh4 Qa5 Be3 Qd8 Bf2 Ne7 Rh1 Ng8 Bh4 Qa5 Ra3 Qc7 Rg3 gxh4 g5 Qa5 g6 Qd8 Rg5 hxg5 Kd2 a5 c4 f5 e4 d5 e5 Kd7 e6+ Kc7 b5 Kb7 e7 h3 e8Q a3 h6 f3 b6 d3 Ke3 g4 g7 f4+ Kd2 h2 h7 d4 c5 f2 Qde2 a2 Qd1 a1Q Qf7+ Qc7 Qc2 f3 Qe7 g3 Qc4 g2 Qc2 Bf5 Qb2 Nf6 g8N Ne8 Qe3 Na6 Ne2 g1B Nec3 Be4 Bh3 f1Q Nf6 f2 Ng4 Rb8 Qh6 Bd6 c6+ Ka8 Qf6 Nc5 Qb3 Rg8 h8Q Rg5 Qhh6 Re5 Ne2 Qc8 Qh7 Nc7 Qhh6 Qh8 Bg2 Rbe8 b7+ Ka7 Na3 Qfb1 Nc2 f1R Ne1 Rf4 Nf3 Bf2 Rg1 Qg7 Qbe6 Qb5 Qb3 Bh4 Bh3 Bg5 Rg3 R8e6 Neg1 Re7 Ne3 Re8 Bd7 R8e6 Ng4 Qc3+ Kd1 d2 Be8 Re7 Qc4 Qa1+ Ke2 d3+ Ke3 d1R Qb3 d2 Rg2 Rc1 Rg3 Na8 c7 d1R c8N+ Kb8 Qff7 Nc7 Qff6 R7e6 Ne7 Ka7 Ne2 Rh1 Nc6+ Kb6 Nd8 Ka7 Neg1 Re7 Kf2 Qh8 Ne3 Rh4 Ng4 Bd2 Rg2 Qg8 Kg3 Qgc4 Qh5 Qcc3 Qh7 Re1 Qhh6 Re3 Kf4 Rd7 Ne6 Rd8 Rg3 Rc8 Nd8 Bc2 Qfh8 N5a6 Q8f6 Na8 Rg2 Qcc4+ Kg3 Rcc5 Nf2 N8c7 Qb1 Rd4 Qb2 Be4 Qb3 Qd3 Kf4 Rb4 Rg5 Rc1 Ng4 Qdc3 Rg6 Nc5 b8B+
nn2NK2/3Brb1q/q6p/2nb1pQR/Nn1k1bqN/n2r4/7N/1Q1QR3 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kf2 Ke7 Kf3 Ke6 Ke4 b5 g4 f5+ Kd3 Ke5 e4 d5 c4 f3 g5 a2 c5 h3 g6 b4 c6 b3 a5 b2 a6 f2 a7 h2 c7 h6 g7 Qd7 Ne2 Ne7 g8Q Rh7 Qe1 Nec6 Nc1 Nb4+ Kd2 d3 Kc3 d2 Kb3 d1N Nc3 b1N Qg5 d4 Kc4 d3 N1e2 d2 Nd4 Bd6 Na4 Ndc3 Qd1 Nb5 Bd3 Ba6 c8N f1Q Ne7 Bc8 Be2 Nc7 Bd3 Qe2 Re1 h1B Nf3+ Ke6 e5 Na3+ Kd4 Ba6 Qb1 d1Q Nh2 Bd5 Ng6 Bac4 Nh4 Re7 Rh1 Qdf1 Qd1 Bb3 Bb5 Qff3 Rc1 a1N Re1 Qef1 Rc3 Qh5 Rh3 Qg6 Bc6 Qa6 Qb1 Qh7 Qd1 Qe8 Qb1 Qeg6 Bd7+ Kf7 e6+ Kg7 Rf1 Bf4 Kc5 Ba2 Re1 Bac4 Qg3 Kf6 Qgb3 Qg4 Q3d1 Rf7 e7 Bb3 Rg1 Ke5 e8N Re7 Rh1 Bf7 Rg1 Bbd5 Rf1 N8c6 Rg1 Rb8 a8Q Rd8 Rf1 Nb8 Re1+ Qge2 Qc6 Na8 Qg6 Qe4 Qg5 Qee2 Ng2 Qe4 Rh5 Qee2 Rg1 Qg4 Nh4 Bb7 Bc6 Rd3 Bd7 Ke4 Nb6 Bbd5 Re1+ Be3+ Kd6 Nb3 Bc6 Kd4 Na4 Nb6 Bd7 Nc5 Kc7 Na8+ Kd8 Re5 Qbc1 Bf4 Qb1 Bde6 Ke7 Bd5+ Kf8 Re3 Qg6 Re7 Qg5
N2r3b/Q3rnNR/q2RpQK1/1b3p1n/q4N2/1r2R2b/3bnb2/1NB2k2 b - - 0 1 legal: proof: d4 a5 g4 c5 e4 cxd4 b4 axb4 f4 e5 Bc4 exf4 e5 h5 e6 hxg4 Bd5 Ke7 Bb3 Kd6 e7 Kc7 Be6 dxe6 Qd2 Kc6 Qd1 Kd7 Kf2 Kd6 e8N+ Kc5 a4 Kc4 h4 b5 h5 f5 h6 g5 h7 f3 Kg3 d3 c3 d2 a5 Kd3 c4 b3 a6 f2 a7 f1B c5 b2 c6 b4 c7 b3 Ng7 Nh6 Rh2 Ba6 c8N Nd7 Rh5 Qa5 Na3 b1N Rh4 b2 Nf3 Bh3 Nh5 Nc3 Nc4 b1R Nf6 Bb4 Ra3 Re8 h8Q Nf7 Qg1 Ke2 Nb2 d1Q Nb6 Rad8 a8R Qda4 Ne1 Bb5 Rb3 Re7 Qf8 Qa6 Ne8 Nf6 Nbd3 Ba5 Qe3+ Kf1 Ng7 Rb2 Ra3 Rb3 Nc2 Bb4 Rh7 Ne2+ Kh2 Bc3 Nf4 Nh5 Rb8 Be1 Na8 Bd2 Rb6 g3+ Kh1 g4 Rd6 g2+ Kh2 Nh8 Qf6 Nf7 Qa7 g1B+ Kh1 Rb1 Re3 g3 Na3 Rb3 Nb1 Bf2 Qb8 g2+ Kh2 Ke1 Qa7 g1B+ Kh1 Bg4 Kg2 Bh3+ Kf3 Kf1 Ng6 Bh2 Ne8 Bf4 Qc3 Be5 Qa1 Bh8 Ng7 Nhg3 Qf6 Nd4+ Kf4 Nh6 Kg5 Nh5 Nf4 Ne2 Kg6 Nf7 Re5 Bfe1 Re4 Bf2 Re3
3B2b1/pn1KnR2/R4qB1/b1rRp1r1/1BqN2k1/1n2Qbq1/Q3q2r/R7 b - - 0 1 legal: proof: d4 b5 g4 g5 f4 gxf4 a4 bxa4 e4 f5 g5 fxe4 Nc3 c5 Nd5 cxd4 Ne3 h5 Ng4 hxg4 Kd2 Kf7 c4 Ke6 b4 Kf5 h4 d5 b5 e5 c5 f3 c6 g3 b6 f2 h5 d3 Kc3 e3 g6 d2 g7 g2 b7 e2 h6 e1Q h7 d4+ Kc4 a3 Kb5 d3 c7 a2 Rh3 Na6 Kc6 Qf6+ Kd5 Be6+ Kc6 Rc8 b8B Nc5 Qb3 d1Q Bd2 Kg4 Rf3 Nb7 Bb4 d2 Bd3 f1Q Ne2 g1R Bg6 Qg3 Nd4 Qde2 Qe3 d1B Rf5 Bd5+ Kd7 Ne7 g8Q B1b3 Rf2 Bf3 Qc4 Rg2 Qa6 Rg8 h8R Rh2 Rh6 Qc4 Rd2 Qfe2 Rh7 Bh6 Rf7 Rg7 Rg1 a1N Qa2 Bc2 Rh1 Nb3 Ra1 Bce4 Rdd1 Bd5 Rd3 Nc1 Ra3 Nb3 Ra6 Bf4 Rf8 Bg8 Rf7 Re8 c8R Bg5 Rc5 Rc8 Qg1 Bd2 Rd5 Rc5 Bc7 Bc3 Bd8 Be1 Bd3 Rg5 Bg6 Bc3 Qe3 Be1 Ba3 Ba5 Bb4
n1qnQk1n/Kp3b2/bN2r3/3QB2N/1b1Bbn2/6Bn/BR1bp3/3Q1r2 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Bf1 b4 Ra3 bxa3 Kd2 g5 f4 e5 c4 d5 h4 d3 Kc3 a2 c5 a1N Kb4 d2 Kb5 e3 c6 e4 h5 e2 a5 e1B c7 d4 Kb6 d3 f5 g3 a6 e3 f6 g4 a7 g2 h6 g3 h7 Bf5 Qe2 d1B Qc2 d2 Qb2 Be2 Qc2 d1B Nh3 g1N Ba3 g2 Qc5 Ne7 Qe5 Nb3 Nf4 Nd2 Rh2 Nc6 Ne6 Ba6 Nc3 Ng6 Nd5 Bh5 Bc4 Qc8 Bc5 Nh3 Ba2 g1N Bd4 Bb4 Ng7+ Kf8 f7 Be4 Qg5 Rb8 a8Q Nd8 Ka7 Nc4 Rb2 e2 Nb6 Bed2 Qd5 Nhf4 Be5 Rg8 h8B Ngh3 Bd4 Bg4 Nh5 Be6 Bhe5 Nh8 Bb1 Rg1 Ba2 Qd7 c8Q Rf1 Qcc6 Rc8 Qa4 Rc6 Qd1 Qc8 Na4 Nb6 Qb8 Na8 Nb6 Ke7 f8B+ Ke8 Be7 Bf7 Bh4 Re6 Bhf2 Kf8 Bg3 Qc4 Qc8 Qc3 Qcd7 Qc8 Qe8+
8/3nB3/p4qQ1/2R3nr/BKpn4/2RB2NR/1k2b1rQ/brbrbq1R b - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 fxg3 Qc2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Qb3 Bh3 Qd1 Bc8 d4 c3 h4 Ke7 e4 Kf6 b4 g5 b5 c5 b6 a3 b7 g4 d5 Ke5 h5 f5 d6 c4 h6 c2 Kd2 Kd4 d7 f4 h7 f3 e5 a6 e6 a2 e7 f2 e8B Bb4+ Ke2+ Kc3 Rb1 a1B Rh4 Nh6 Rh2 Nf7 Rb2 Qf6 d8R Ra7 Nh3 g1R Rh1 g2 Ng5 g3 Rd5 Bg4+ Ke3 Ra8 Ba4 Nd7 b8Q Ba5 Qg8 Rb8 Bd3 Be2 Qg6 f1R Ra2 Rb1 Ba3 c1B+ Rd2 Rf2 Be7 Re1 Rf5 g1N Rc5 g2 Ke4 Nf3 Ra2 Ra8 h8R g1Q Ra3+ Kb2 R8h3 Ref1 Qe1 Rg2 Qg3 Rd1 Qd6 Qf1 Qh2 N3e5 Kd4 Be1 Ne4 Rh8 Ng3 Rh5 Rc6 Ng5 Rc3 Nef3+ Kd5 Nf8 Kc5 Nd4 Kb4 Nd7 Rc5
N5r1/K3pQ2/1BR2r2/RqnbQq2/1kbr1q1r/Q3pR1B/5bn1/3b3Q b - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 Na3 f5 Nc4 fxe4 Ne5 h5 Ng4 hxg4 Ke2 b5 c4 d5 h4 Kd7 a4 Kc6 g6 Kc5 g7 b3 a5 g3 a6 d3+ Kd2 f3 Kc3 d2 a7 b4+ Kb2 f2 h5 d4 h6 g2 h7 d3 Rh2 Qd4+ Kb1 b2 Ka2 b3+ Ka3 b1Q Ka4 b2 Ka5 Nh6 g8R Nd7 Rg5+ Nf5 Rg3 Ne3 Ne2 g1R Nc3 Bh6 Nd5 Bb7 Nb6 Ng2 Rf3 Rag8 a8Q Be3 Rh6 Bd5 Ka6 Kb4 Rc6 Nc5+ Ka7 Qc2 Ra6 b1Q Ra5 Qcb3 Qe2 d1R Qb2 Qf6 Qe5 d2 Bb2 Qh6 Bd4 Qf4 Qe8 Rg6 Na8 Rf6 Qf7 Rg8 h8Q Rh1 Qhh5 Rh4 Qh8 Qa4 Qh6 Qb5 Qhh5 Ne1 Bh3 f1B Qh6 Bf2 Qhh7 Na6 Bb6 e3 c5 Bfc4 Qd3 Ng2 Qf1 Rc1 Qh1 d1B Rd6 Qa4 c6 Nc5 c7 Qbf5 c8Q Qb5 Rc6 Rc3 Qce6 Rd3 Qa1 Rd2 Qee5 Rd4 Qa3#
rR1N4/1r1b1p2/kb2r3/R1Q1Q2n/bKnN2Q1/1p1rn1R1/6Rp/1rB3q1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 a3 gxh4 e3 Nh6 Bc4 Ng8 Ba2 b3 Kf2 bxa2 Ke2 Ra7 Ke1 Ra8 Kd2 b5 c4 h5 g4 d5 e4 Kd7 e5 Kc7 g5 Kb7 a4 d3 Kc3 h3 e6 d4+ Kb3 f3 g6 b4 a5 h4 c5 h2 g7 f2 e7 f1N e8Q h3 c6+ Ka6 c7 d2 Ne2 d3 Nec3 Bc5 Rg1 h1R Ne2 h2 Ka4 Ne3 Qe6+ Bb6 Nf4 Rh6 Qe5 Qg5 Ne6 Nd7 Rg2 Ngf6 g8R Nh5 Qg4 d1R Nd8 d2 Nc3 Re6 Rb1 a1R+ Kb3 Ra2 Ne2 Rb2+ Ka4 Rb3 Nd4 Rd3 Rg7 Rdf1 Rb3 d1B Rg6 Rf2 Rg8 Rb2 Rg3 Bb7 c8Q Rf1 Qcc7 Bc8 Qcc5 Rb1 Rg7 Rf2 Rg8 Rfb2 Rg6 Nc4 Rg8 Ndf6 Rg7 Nd5 Rg6 Ka7 a6 Qe3 Rg8 Qg1 Rg5 Nde3 Kb5 Rf2 Rb2 Rff6 Rbg2 Re7 Rf5 Rb7 Rg5 Re6 Rf5 b3 Kb4 Bf3 Rg5 Bc6 Rf5 Rab8 Rg5 Ba4 Rf5 Ka8 a7 Bcd7 Qa5 Be8 Qf6 Qh1 Rc5 Rc8 Qe5 Qg1 Qb5 Bd7 Qc6 Rd2 Rb5 Rd3 Qcc5 Rbb8 N8c6 Kb7 Nd8+ Ka6 a8R+ Ba7 Qcd6+ Rb6 Qdc5 Rb7 Rb8 Bb6 Ra8+ Ra7 Qcd6 Rc7 Qdc5 Rb7 Rb8 Ra8 Ra5+
3R3n/1k3BK1/R1Rrr2r/2qpr3/pN1bq1n1/B1B5/Qr1pQ1b1/3R2n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bh3 g3 Bf1 g2 Nc3 cxd6 Ne4 d5 Ng3 fxg3 Bh6 d4 Bg5 Bc5 Bc1 Bf8 Kd2 a3 Kd3 a5 Ke4 f5+ Ke5 g5 c4 d5 h4 Kd7 e4 Kc7 b4 a2 h5 d3 h6 d2 b5 g4 c5 a4 h7 f4 c6 f3 Bd3 f2 Qf3 f1R Bb2 Bc5 Qf8 Nh6 Rh5 Qh4 Nf3 g1Q Nd4 g2 Nc2 g3 Qe7+ Kb6 c7 Rf6 Rd1 Ra6 Rg5 a1R Rg6 Be6 c8R Ra2 Bc1 Rd8 h8B Bh3 Qe6+ Ka7 Ba3 Rd7 Qf5 Rb2 Nb4 Rfc6 Rd6 Nf7+ Ke6 Rd8 Bc3 Nh8 e5 Nd7 Be4 Nf6 b6+ Kb7 Rc7+ Kb8 b7 Qf4 Ke7 Ng4 e6 Qd4 Qh7 g1R Bg6 g2 Bf7 Re1 Qb1 g1N Qa2 Bg2 Rc8+ Ka7 b8R Rab6 Ra8+ Kb7 Ra6 Qc4 Rca8 Bd4 Rc8 Rd7+ Kf8 Qc5 e7 Re2 e8Q Rde7 Rdd8 Rh6 Re1 Rbd6 Rcc6 R7e3 Qe4 Qf5 Qd3 Ree6 Rd1 R2e5 Kg7 Qe4 Qe2
1Bk1bq2/2nb2QK/r3qrnb/N4r2/2BQ1pN1/2B1p1Nb/2p2Bq1/7R b - - 0 1 legal: proof: e4 a5 c4 d5 b4 dxc4 h4 axb4 h5 f6 h6 gxh6 Nf3 h5 Ng1 h4 f4 Na6 e5 fxe5 a3 Nb8 f5 Ra5 Ke2 Ra4 Ke1 Ra8 a4 Qd4 Ra3 Qd5 Rf3 Qd8 Rf4 exf4 Ke2 Kd7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 f6 c3 Kf5 e4 Kg6 h3 a5 e3 a6 h4 f7 c2 d5 h2 g5 h3 d6 c4 a7 c3 Qd5 b3 Bg2 b2 Bd2 c1Q Qa2 b4 Bf3 b3 Bd1 Bh6 f8B Na6 Bh5 Nc7 Na3 b1R Nc4 b2 Na5 c2 Qa3 Qf1 Qa1 Qg2 Ne2 Qe7 Bg7 Qf8 Be1 Rd1 Bf6 b1Q Qd4 Qb3 Bf2 Qe6 Ng3 Ra1 Be2 Ne7+ Kh5 Ra4 Bc4 Ng6 Be5 Rb8 a8Q Rb5 Qb7 Ra2 Bg7 Rf5 Qbb2 Kd8 d7 Rh7 Be5 Rhf7 Bd6 Ra1 Qg7 R7f6 Qd4 Rb1 Be5 Rb6 Bd6 Ra6 Bb4 Ne8 Bc3 Kc7 d8B+ Kb8 Qc5 Bd7 Bc7+ Kc8 Bb8+ Nc7 Qd4 Qa8 Rc1 h1B Rb1 h2 Rg1 Rc5 Rc1 Bg2 Rh1 Ne5 g6 Bh3 Qe7 Qad5 g7 Qg2 g8N Rb5 Qg7 Ng6+ Qe5 Bg5 Qd4 Rbf5 Nh6 Be8 Rd1 h1B Ng4 Qg1 Bf1 Bhc6 Bc4 Bcd7 Rc1 Qg2 Rh1 Bh4+ Kh6 Bg5+ Kh7 Bh6 Ba1 Qed5 Bb2 Qe6 Bc3
rBbn2rn/4brq1/5Bp1/B4RQN/2Np1Kpq/B1Q3n1/k2n4/2N2b2 b - - 0 1 legal: proof: d4 f5 e4 fxe4 g4 a5 b4 axb4 a3 h5 d5 hxg4 Bg2 c6 Bf1 c5 c4 Na6 a4 Nb8 Ra3 Rh6 Rd3 Ra7 Rd4 cxd4 c5 Qa5 c6 Rh8 Bb5 Qd8 c7 Ra8 Bc6 dxc6 Kd2 Kd7 h4 Kd6 f4 Kc5 a5 Kc4 d6 e5 d7 b5 h5 b3 f5 b2 h6 b4 a6 b3 f6 g6 f7 e3+ Ke2 c5 h7 e4 a7 Qe7 d8B Nc6 Nh3 Nh6 Nf2 Rg8 Nc3 b1N h8B b2 Nd5 Nd2 Rg1 b1B Bb2 Bd3+ Ke1 e2 Qc1+ Kb3 Rf1 c4 Ba3 c3 Nf6 c2 Nh5 Ka2 Bf6 Qd7 Bd6 Be7 f8B Nf7 Bg3 Bc4 Nd3 Nh8 Kf2 e1R Bge5 e3+ Kg3 e2 Rf5 Rh1 Kf4 e1Q Bd6 Qh4 Ba3 Bc5 Bd6 Qg7 Bde5 Be7 Bed6 Bd7 c8Q Bde6 B8c7 Nd8 Ba5 Re1 Qc5 Bc8 Bb8 Re5 Qe1 c1N Qe3 Rd5 Qb4 Rd7 Qc3 Nf1 Qe5 Nb3 Qe3 Ng3 Nc1+ Kb1 Ke5 Bb5 Qg5 Bf1 Kf4 Nd2 Bbe5 Rb8 a8N Ra7 Nb6 Rba8 Nc4 Rc7 Ne2 Ka2 Bed6 Bf8 Bde5 Rf7 Bb8 Be7 Nc1+
k1bnb1Nq/4pN2/3qQrn1/3RN3/N2K1b2/1QR2rRp/1p6/2b1nB1r b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ba3 b4 Ke1 bxa3 Kd2 d5 c4 Kd7 f4 Kc7 g4 h5 f5 b5 f6 Kb7 a5 a2 c5 e3+ Kd3 b4 f7 h3 g5 b3 g6 e2 g7 e1N+ Ke2 h4 Kd2 h2 Bh3 d3 Ke3 d2 Nc3 d4+ Ke4 d3 Nd5 Nf6+ Ke5 Ra6 g8N Nh7 c6+ Ka8 c7 Rf6 a6 Bh6 f8N Bf4+ Kd4 Qe8 Qf3 d1Q a7 d2 Rc1 a1B+ Rc3 Bb2 Nd7 Nf8 Bf1 h3 Ne5 Bc1 Nf7 b2 Qg3 Rh5 Nf3 Rhf5 N3e5 Ng6 Rg1 h1R Qe3 Qd8 Rg3 Qh5 Qd3 d1B Qc4 Bg4 Qb3 Bd7 c8R Be8 R8c5 Qh8 Ra5 Rh5 Rb5 Bc8 Rbc5 Qc7 Rb5 Rhf5 Nb6+ Kb7 Na4+ Ka8 Qe6 Qd7+ Rd5 Nc6+ Kc5 Nd8 Kd4 Kb7 Ra3 Qd6 a8Q+ Kc7 Qa6 Kb8 Qd3 Ka8 Qf3 Bh6 Qe3 Rf3 Rc3 Bf4 Qd3 Qa6 Qd1 Qd6 Qb3
3r3R/n2pNqNr/3Nqr1k/1q1nbp2/2BQ3n/3p1n1b/2R2K1Q/1Q1Q4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 c4 g5 h4 f5 e4 Kf7 a4 Kg6 h5+ Kh6 e5 b5 a5 b3 e6 b4 a6 b2 e7 b3 e8N g2 c5 d3 c6 g3 a7 g4 c7 Bb7 c8Q Qf6 Ra4 Ne7 Nd6 Nd5 Ra2 Qf7 Rh4 Nc6 Rh3 Bg7 Rh4 Be5 Qd8 Rh7 Qc7 Rd8 a8Q Na7 Ne2 g1Q Nd4 g2 Nc3 b1R Ne6 b2 Qab8 g3 Ng7 Qe3+ Be2 Qb6 Bf3 g1N Qc5 g2 Qd4 Ra1 Kf2 b1Q Rc2 Q1b5 Be4 Nf3 Rh1 Nc7 Bd5 g1N Bc4 Nh4 Nd5 Ra6 Ne7 Bg2 Qb7 Ngf3 Rh3 Kg5 h6 Nd5 Rh1 Bh3 Qb8 Rhh8 h7 Kh6 Rh2 Q6c6 Qbb6 Qa5 Qbb1 Qab5 Ndc8 Qce6 Nd6 Rhg8 Nge8 Rg7 h8Q+ Rh7 Rh1 Bf4 Qhe5 Rb6 Ng7 Bh2 Qg3 Rc6 Qg2 Be5 Qh2 Kg5 Qf1 Rh6 Qc5 Bg4 Qfd1 Qeg6 Rb2 Ng2 Qhg1 Qgf6 Rh4 Bh3 Qh2 Rhh8 Rh6 Ngh4 Rc2 Ra6 Nde8 Re6 Ng6 Q6e7 Nd6 Rf6 Qb6 Qee6 Qd4 Rhg8 Nge8 Rg7 Rh8 Rh7 Ne7 Kh6 Ng7
1Q1r2Qq/RNp5/RQbB2kn/1pQq3r/3n1K2/3b1bn1/1p3B2/R4rb1 b - - 0 1 legal: proof: g4 g5 b4 h5 c4 d5 f4 gxf4 b5 e5 g5 f3 Bh3 dxc4 Bg4 hxg4 Nc3 a6 Nd5 axb5 Nf4 exf4 Kf2 b4 Kf1 Nf6 Ke1 Ng8 Kf2 b5 h4 f5 d4 Kf7 a4 c3 e4 c2 e5 b3 e6+ Kg7 e7 b2 e8Q Bd6 d5 Ra5 h5 Nh6 g6 Bd7 Qe3 Nc6 Qc5 Nd4 Ne2 Bc6 Be3 c1R Nc3 Ra8 a5 Kf6 Qb6 Bc5 d6 Qe8 d7 Rd8 a6 g3+ Kf1 g2+ Kf2 g1N a7 Nge2 a8R Ng3 g7 Qe6 g8Q Qd5 R1a6 Rh7 Ke1 f2+ Kd2 f1B Na4 f3 Bf2 f4 R8a7 Bd3 Qc2 Rf1 Qc1 Re8 d8Q+ Kf5 Qdb8 Rd8 Bg1 f2 Qc4 f3 Ke3 Rb1 Qc3 f1B Bf2 Bg2 Qb4 Kf6 Kf4 Rf1 Qc4 Nf7 h6 Rh8 h7 Nh6 Be3 f2 Qc3 Bf3 Rg1 Bf8 Nc5 Be7 Nb7 Bc5 Qf8+ Kg6 Qc1 Rg8 h8B Rg7 Rh1 Re7 Bf6 Re5 Be7 Rh5 Qc2 Rg1 Qb3 f1Q Bf2 Qh3 Bd6 Rf1 Qc2 Qh2 Qg8+ Kf6 Qa5 Nb3 Be1 Rf2 Qb6 Rg5 Qc4 Nhf5 Qh8+ Kg6 Qf8 Qh8 Bc3 Nh6 Rha1 Rf1 Be1 Bg1 Bf2 Nd4 Qcc5 Rh5 Qg8+
n5Q1/1p2qRQQ/2b2r2/bNB1N3/nN2b3/pp5q/2rR3q/kbn1K2Q b - - 0 1 legal: proof: h4 c5 f4 d5 c4 g5 a4 gxh4 b4 cxb4 c5 e5 e3 exf4 a5 Qxa5 Be2 Qa2 Bc4 dxc4 d4 Ke7 g4 Kf6 d5 Ke5 c6 a5 e4 f5 c7 h5 d6 h3 d7 b3 d8N a4 g5 a3 g6 h4 g7 f3 Be3 f4 Rh2 c3 Rd2 c2 Rf2 c1N Bb6 h2 Nc3 h1B Nce2 h3 Qd7 h2 Ne6 Rh6 Rb1 Na6 Rb2 Ne7 g8Q Nc5 Qf7 Nd5 Qg6 Na4 Nc3 Bb4 Rbe2 Ba5 Ba7 Ndb6 Rf1 f2+ Kd1 f3 Qgg7+ Rf6 Nc5 Bg2 Qg8 h1B Qdg7 Kd4 e5 Bf5 c8Q Bb1 Qh3 Rc8 e6 Na8 Na6+ Kd3 Nb5 Rc2 e7 Qb2 Rfe1 f1Q e8Q Qf2 Qef7 Qh4 Be3 f2 Nf3 f1Q Bc5 Qe5 Qh2 Qe7 Qh3 Qg1 Rf1 Qh2 Qh5 Qg4 Qhh8 Qge6 Rd2+ Kc4 Qg8h7 Qf5 Qhg3 Qfh5 Nb4 Q5h3 Na7 Kc3 Ne5+ Kb2 Nb5 Be4 Ke1 Bhg2 Q8g8 Bgf3 Qg2 Ka1 Qh1 Bc6 Rff2 Bfe4 Rf4 Rd6 Rf8 Rf6 Rf7
Kb6/p1rbp2B/1kpB3q/2b1q3/1Q6/2B3N1/1n1Nq1Qn/rNR1b1Nr b - - 0 1 legal: proof: f4 b5 b4 f5 c4 h5 g4 d5 a4 dxc4 e4 bxa4 Ra3 fxe4 Rg3 g5 Rg2 gxf4 g5 Bg4 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 h4 Kc6 d4 a3 h5 c3 d5+ Kb6 d6 f3 Ke3 c2 Kd4 f2 Kd5 e3 d7 g3 h6 a2 h7 a1R g6 g2 b5 e2 g7 e1B Qd2 Na6 Ba3 c1Q Bd3 f1Q Bd6 Nh6 g8N Qb2 Nf6 Qe2 Ne4 Nc5 Ng3 Ng4 Bc2 Qe8 d8N Bh6 Nf7 Na4 Ne5 Qf8 Nef3 Bd7 Qg5 Qbg7 Nfd2 Rc8 Qg6 Bf4 Be4 Kb7 b6 Nb2 Bc2 Ka6 b7 Nh2 b8Q Qgf6 Qe4 Q8h6 Qbb4 Qfg7 Kc5 Qe5+ Qd5 Be6 Kc6 Bf5 Nh3 g1B Qg2 Bc5 Ng1 Bg4 Qd4 Ka5 Kb7 c6 Qc4 Bd7 Bg6 Rhf8 h8B Rg8 Bg7 Rh8 Bc2 Rh7 Qce4 Rc7+ Ka8 Kb6 Qb4+ Qb5 Bg6 Qe2 Bc3 Qe5 Qbe4 Qe2 Qb4+ Ka6 Bh5 Rf7 Nge4 Bef2 Bg6 Qeg5 Bh7 Rb7 Ngf3 Qgf6 Rc1 Be1 Qa3+ Kb6 Bde5 Qfg7 Bed4 Bb8 Ng3 Rc7 Be5 Rf4 Bd6 Qge5 Ng1 Rf3 Nh3 Rf1 Qa4 Rh1 Ng1 Qf8 Qh4 Qh6 Qb4+
2rkn1Rb/p1p1qb2/n3Q2N/1N1n3Q/1Qn3qQ/3p4/K2Bb1N1/B2r1q2 b - - 0 1 legal: proof: e4 b5 a4 bxa4 c4 e5 b4 g5 d4 d5 h4 dxc4 d5 gxh4 Ra3 Bg7 Be2 Bf8 Rd3 f6 Rd4 exd4 e5 f5 Bd3 Bd6 Bc2 Bf8 Be4 fxe4 Kd2 h5 Kc2 h3 Kb2 d3 g4 h2 f4 c3+ Ka2 a3 b5 e3 f5 h4 d6 e2 b6 e1N b7 h3 g5 c2 f6 Ng2 e6 Bg7 g6 Nf4 e7 Na6 b8Q Nd5 Qe2 Bg4 Qb6 Rc8 Bd2 c1Q Qb4 Qf1 Qee4 Be2 f7+ Kd7 f8Q Ngf6 Qh4 Ne8 Qf7 Qf3 Qg8 Qg4 Nf3 Bb2 Rf1 h1Q g7 h2 Nc3 Ba1 Rd1 Qf1 Nb5 h1B Ne1 Be4 Rb1 Bg6 Ng2 Bf7 Qgh7 Rf8 g8N Bh8 Nh6 Rg8 Qg6 Rg7 Qgh5 Rg5 Kb3 a2 Rc1 a1N+ Ka2 Nb3 Re1 Ke6 d7 Na5 Rb1 Nc4 Rb2 Nef6 e8Q+ Qe7 d8B Rg7 Qg8 Kd7 Rb1 Ne8 Rd1 Qee4 Bf6 Qe7 Ba1 Kd8 Rc1 Rg5 Qgg6 Re5 Qe6 Re3 Rb1 Rh3 Re1 Rh1 Rc1 Na3 Rc6 Nc4 Rb6 Rg1 Rb8 Qff5 Rb6 Ra8 Qe3 Rd1 Rg6 Qf1 Qe6 Rc8 Rg8
QB1Nrq2/1b1R2r1/2N2p2/3q4/rbRn3n/2Nk2pK/p5Np/nr4QR b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 g4 gxh4 f4 b5 g5 bxa4 f5 e6 Bh3 exf5 Bg4 fxg4 Kf2 Ke7 Kg2 Ke6 b4 Kd5 e4+ Kc4 c3 h5 g6 a5 g7 d5 b5 d3 e5 g3 b6 a3 b7 d2 e6 h3+ Kf1 a2 e7 a4 e8N h2 Kg2 h4 Nf6 h3+ Kf3 d4 Ba3 d3 Ne2 Nh6 g8Q Nf5 Kg4 Bb4 Nf4 Nh4+ Ne6 Qf8 Nd5 f6 Nf4 Nc6 b8N Nd4 Ng2 Bb7 Qg1 d1R Nc6 d2 Ned8+ Kd3 c4 Re1 c5 d1R Nc3 Re8 Bc1 a3 Bf4 Ra4 Bb8 Rh7 Qh8 Rf1 Re1 a1N Re7 a2 Rd7 Nf3 Ne7 Rb1 c6 Nh4 c7 Rf7 c8R Rh7 Rc4 Rf7 Nec6 Rfe7 Qc1 Rh7 Rf1 h1Q Re1 h2 Kh3 Rg7 Qg8 Qf1 Qh8 Qf3 Rh1 Qe4 Qg1 Qd5 Qg8 Qh5 Qd5 Qf3 Qa5 Qd5 Qa8
nQr2QQ1/K2b4/2RqQ1n1/bp1pp2p/pB1B4/3kN3/pR2r3/1n3Rb1 b - - 0 1 illegal: No proof kernel
1n2Rn2/1kq2rq1/1Bq1B1rb/b5NB/4pBR1/q1q3R1/b4N1K/qBr5 b - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 Qg4 hxg4 e6 fxe6 Ba3 e5 Bc1 e4 Kf2 e5 Kg2 b5 a4 d5 h4 Kd7 c4 Kc7 c5 e3 a5 e4 a6 d3 c6 d4 h5 d2 a7 d1Q g6 d3 g7 d2 h6 f3+ Kg3 b3 h7 f2 Be2 f1Q Rh6 b2 Nh3 b4 Ra5 b3 Rg5 Ne7 g8B Be6 Kh2 Qfe1 Bb5 e2 Kg2 g3 Bf7 Qc2 Nf2 d1Q Be3 Rg8 h8B Qdc1 Ba6 Qec3 Re5 e1B Be8 Ng6 Rh4 Bh6 Rf5 Nf8 Rg5 Rg6 Nd2 b1R Bd3 b2 Nf3 Ba2 Bhd4 Qd6 Bf7 Qda3 Rhg4 Ra1 Be8 b1Q Bf4+ Kc8 c7 Kb7 Kg1 g2 Kh2 Bd2 Bb6 g1Q+ Kh3 Qbb2 c8R Qca4 Bb1 Qac6 Bf7 Qg7 Re8 Ba5 Rg3 Qge1 R5g4 Qbc3 Ng5 Qed1 Kg2 Qdd7 Kh3 Qdc7 Kh2 Q1e1 Bd3 Rc1 Bb1 Nbd7 Be6 Rd8 Bf7 Nb8 Be6 Rd6 Bf7 Rgf6 Bh5 Rf7 a8B+ Ka6 Rd8 Rg6 Re8 Qa1 Ne6 Qec3 Ng5 Q6d6 Bd5 Qdc6 Bc4+ Kb7 Be6
1R1R4/R1rq3n/br3pb1/Kn3NNq/1r1b1R2/R4BB1/2n3n1/N3qbk1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Qd3 h4 Bc1 g2 Qg3 hxg3 Kd2 Ke7 e4 Ke6 c4 Ke5 a4 Kf4 h4 g5 c5 d5 c6 b5 c7 g4 a5 b3 a6 b4 a7 d3 e5 b2 e6 b3 Kc3+ d2 e7 Ke3 Kb4 Kf2 h5 d1B h6 d4 h7 d3 Ra4 d2 Na3 b1R Ra6 b2 Ra4 Qd7 Ra5 Bg7 e8N Be2 Re5 d1N Ra5 Nc3 Rh4 Nc6+ Kc5 Nb4 Kb6 Rb8+ Kc5 Nf6 a8R Bca6 c8R Rb6 Rc7 Nb5 Bd2 Nc2 Nd6 Rc8 h8R Nh7 Rc6 Bd4+ Kd5 f6 Bb4 Rc7 Nf3 g1N Ng5 g2 Rc3 g3 Rad8 Nf3 Rf4 g1Q Bg2 Qh2 Rd3 Qh5 Be1+ Kg1 Rhe8 Rcb7 Kc4 Bf1 Nf5 Nh4 Bf3 g2 Bg3 Rc1 Kb3 b1B Ka4 Rc7 Rb8 Re1 Red8 Re4 Rb3 Ba2 Rc3 Bf7 Nc4 Be8 Ra3 Bg6 Nd2 Kh1 Bg4 g1Q Nb3 Ng2 Bf3 Qf2 Na1 Qe1 Ne6 Kg1 Ng5 Bb7 Ra7 Ba6 Rc3 Be5+ Ka5 Rb4 Rb3 Bd4 Ra3
2k1q3/1nnr4/n2p1R1N/3bpN2/5nrR/N1rbB1p1/2r5/K1b1RBNN b - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 Qg4 hxg4 e6 fxe6 Ba3 e5 Bc1 e4 Kd2 e5 h4 b5 c4 b3 a4 g3 c5 f3 c6 f2 h5 e3+ Kd3 b4 a5 b2 Kc2 b3+ Kd1 e2+ Kd2 e1N c7 d3 Kc3 d2 h6 d1R g6 Ng2 g7 Nf6 g8R Bb7 c8N Bd5 a6 Nf4 a7 Na6 Nd2 b1B Kb2 Bd3 h7 Ne4 Rg4 Rg8 h8N Nd6 Ndf3 Nb7 Ra3 Bh6 Rgh4 Rg4 Ne7 Rc8 a8N Rc3 Nh3 d6 Nfg1 Kd7 Nc7 Qe8 Ra2 Rd2+ Ka1 Rdc2 Nf5 Kc8 Nb5 Bg5 Nf7 b2+ Kb1 Bh6 Na3 Bg5 Be3 Bh6 Bg2 f1N Nf2 Bg5 Ba7 Ne3 N7h6 B5c4 Bb6 Ned5 Bf1 Ndc7 Be3 Bd5 Ra1 Rc4 R1h2 R2c3+ Ka2 b1R Nh1 Rbc1 Rb2 R1c2 Re1 Rb4+ Ka1 Ra4 Ng8 Bh6 Ra2 Rg7 Rb2 Rd7 Ra2 Bg5 Ngh6 Ng6 Nd4 Rg2 Bf2 Bc1 Be3 Rac4 Rb2 Rd2 Rb4 Rdc2 Ra4 Rb4 Rf4 Rbc4 Rf6 Rb4 Ndf5 Rh4 Rg4 Nf4 Rg5 Rg4 Rh5 Be6 Rh2 Bd5 Rh4
r7/qRBr1B2/2N1KbRq/n3N1RN/q2B1r2/q4q2/2n1p2n/1bk2b1R b - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 Qg4 hxg4 e6 fxe6 Ba3 e5 Bc1 e4 Kf2 Kf7 a4 Kg6 c4 Kf5 h4 e5 c5 d5 a5 b5 c6 f3 Kg3 d3 h5 b3 g6 d4 c7 b2 h6 b4 a6 e3 h7 Ke4 g7 e2 a7 e1N Bh6 b3 Rh3 f2 Rh1 d2 Bg5 d1Q Bc1 d3 Bh6 d2 Be3 Nh6 g8R Qd3 Ra2 Bg7 Rh4 Bf6 Rh5 Ba6 c8R Nc2 Rge8 Nc6 Ra1 Na5 Be2 f1Q Na3 b1B Nh3 b2 Rg5 Rf8 Nb5 Qa3 h8B Qf3+ Kh4 g3 Re7 g2 Rb7 g1Q Nf4 Qc1 Rc6 d1R Bc4 Ng4 Bd4 Nh2 Nh5 Qd2 Bg8 Kd3 Bf7 e4 Bb6 e3 Nd4 Qc1 Bc7 Kd2 Rcb6 Be2 Nc6 Bf1 Bg7 e2 Bh8 Rac8 a8N Qge3 Ra6 Qa7 Nb6 Rb8 Nd7 Ra8 Ba2 Rf7 Nde5 Rd7 Bf7 Re1 Nb8 Qd1 Bg7 Kc1 Nbc6 Qd2 Bf8 Rd1 Bc5 Qdb4+ Bd4 Qba4 Rab6 Rd3 Rb8 Rb3 Rg8 Rb4 Rb7 Qf5 Rg7 Qh7 Rg6 Qh6 Bb3 Rc4 Kg3 Rb4 Kf4 Rc4 Kf5 Rb4 Bc5 Rf4+ Ke6 Bg2 Bf8 Kd2 Rg3 Ba2 Bc5 b1Q R3g5 Qf1 Bd4 Qf3 Rh1 Bf1 Bd5 Kc1 Bc4 Rd6+ Kf7 Bb1 Bd5 Bg7+ Ke7 Bh8 Bg8 Rd7+ Ke6 Bf6 Bf7
2qB1rrb/4q3/Bn1bb2K/B6N/1R4pR/N1p5/knb1q3/NrR1N1b1 b - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Nh3 f3 Qc2 g3 Ng1 axb6 Qf5 b5 Qh3 b4 Qg2 fxg2 e4 Kd7 Ke2 Kc6 Ke3 Kc5 Kf4 f5 h4 b5 a4 g5+ Ke5 c3 a5 g4 Kf4 c2 e5 b3 d4+ Kb4 h5 c5 d5 b2 e6 Kb3 a6 c4 a7 b4 h6 Nc6 d6 Qe7 d7 Ne5 d8B Nf6 Kg5 f4 h7 f3 Ba5 f2 Ne2 g1B Bd8 g2 Be3 c1Q Na3 b1R Bd2 Nd3 Rh4 Nb2 Kg6 Rb8 a8R Nd7 Ra4 Rg8+ Kh5 Ra8 h8N Nb6 Ng6 Bh2 Be1 g1B Ne5 Bg7 Nf3 Bd6 Bc3 Qc2 Ne1 Bh8 Kh6 Bd7 Bg2 f1Q Bb7 Qcf5 Ba6 Qc5 Bd2 Qc8 Bc3 Qef7 e7 Be6 e8N Qe7 Nf6 Qg2 Nf4 Qe2 Nfg2 Rf8 Nh5 Rg8 Bd4 c3 Bf2 Rc1 Rb1 Ka2 Nec2 b3 Rb4 Rf1 Bc5 Rff8 Rd1 Rb8 Rc1 N2a4 Rb5 b2 Bb4 b1B Ba5 Na8 Na1 Bc2 Rf5 Rb1 Rb5 N8b6 Rb4 Nb2 Ne1
1K4Q1/2npNb2/1p2NkRr/RBnpbN2/bn3R2/N5pr/3rR3/6r1 b - - 0 1 legal: proof: d4 a5 b4 axb4 f4 h5 d5 e5 d6 exf4 Nd2 cxd6 Nb1 d5 g4 hxg4 a4 b6 a5 Qf6 a6 Qc6 Ba3 Qb7 axb7 bxa3 Kd2 Ke7 Kc3 f5 Kd4 g5 Ke5 g3 c4 g4 e4 g2 h4 f3 h5 a2 c5 f4 h6 g3 c6 f2 c7 f3 h7 Nf6 Bb5 f1N Ne2 g1R Rh4 f2 Rf4 Na6 b8N Nd2 Nd4 f1B Na3 Bg7 Qg4 Be2 Ne6 Bb7 c8N+ Kf7 Kd6 Nb4 Kc7 Nb3 e5 Bc6 Ne7 Nc5 Nf5 Ne8+ Kc8 Rh1 Qg5 Rh3 Qd8 Bh5 Qg5 Rg8 h8R Nc7+ Qd8 Ra7 Rh6 Rh8 Rg6 Rh6 Qg5 Ra4 Qg4 Nbd3 Qg5 Rd4 Qg4 Nb4 Qg5 Ba8 Nc6 Rd2 Nce7 Bc6 Kb8 Bh8 Re1 a1R Ree4 Nbd3 Ra4 Rg1 Ra5 Nb4 Rf6+ Ke8 Qg7 Bf7 Rg6 Rc1 Qh7 Re1 Qg7 Rg1 Qh7 Bg7 Qg8+ Bf8 Nc8 Ba8 Nd8 Rhh1 e6 Bc6 Bf1 Ba4 e7 R1h5 Bb5 Rh3 Ne6 Na8 Ned4 Nc7 Qh7 Bg7 Qh8+ Bg8 Qh7 Kf7 e8R R6h4 Qh8 Rh6 Re2 Bf6 Ne6 Be5 Rg7+ Kf6 Nce7 Bf7 Qg8 R6h5 Rgg4 Rh6 Rg6+
K1k1b3/prb2QR1/2R1n3/1NNqn2p/8/Bq3R2/R2bqrn1/N2b1qN1 b - - 0 1 legal: proof: a4 c5 h4 b5 d4 cxd4 f4 bxa4 c3 g5 f5 gxh4 f6 d3 e3 exf6 Be2 f5 Bg4 f4 Be6 Nc6 Bb3 Nb8 Bc2 dxc2 Kd2 f5 Kd3 h5 Kc4 d5+ Kb5 Kd7 b4 f3 g4 h3 g5 a3 c4 d4 e4 f2 g6 f1Q g7 f4 e5 a2 Nc3 h2 Qe2 f3 c5 d3 Qe4 d2+ Qc4 d1B Nb1 f2 Ba3 c1B Nd2 Nc6 Nb3 Nge7 g8R Nf5 Rg7+ Qe7 e6+ Kd8 Qe2 Qf7 Qc4 Ne5 c6 Bd7 Ka6 Rb8 b5 Be8 e7+ Kc8 b6 Nh4 c7 Qg2 Qf4 f1Q+ Qc4 Qge2 b7+ Kd7 c8N Ng2 Nd6 Bd2 Nb5 Qd5 Rc1 a1N Rc2 Rg8 Ra2 Nc2 Na1 Nd4 Qb3 Qdc4 Qf3 Ne6 Qf7 Rd8 b8R Qb3 Rb6 Rb8 Rc6 Rh8 Rg3 Rh7 Rf3 Rd8 Kb7 Bfh6 Rc8 Bhf4 Rc5 Rc8 Rc6 Rc7+ Ka8 Rb7 Nc7 Kc8 Na6+ Rc7 Nc5 Rh8 Nh3 Rf8 Rg1 h1Q Na4 Nh4 Rg7 Ng2 Ng1 Bg3 Nc5 Bgf4 Rd6 Rb7 Rb6 Nd3 Rc6+ Bc7 Qg6 Rf4 Qf5 Ne5 Qf7 Bd7 e8N Rf5 Nf6 Be8 Nd5 Rf4 Nc3 Rf6 Rd3 Rf2 Rh3 Ne3 Nb5 Qhd5 Rhg3 Ng2 Rf3
1B3q2/n2b3n/r3Nb1R/q2k1pbB/B1B2np1/2q3pR/n2R1r2/2R3QK b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 h4 Ke7 e4 Kd6 a4 g5 c4 f5 a5 b5 h5 d3 h6 g4 h7 d2+ Ke2 b3 a6 b4 a7 b2 Qb3 b1N Qa2 d1Q+ Ke3 b3 Rh3 b2 Be2 Qe1 Nf3 Qea5 Ng5 Nc6 Bd3 g1B+ Ke2 Bg7 Kf1 Qf8 Kg2 Be3 Kh1 Nc3 Ne6 b1N Qg2 Bg5 Qg1 Nd5 Ra2 B7f6 Rd2 Nbc3 c5+ Ke5 Bb2 Nf4 Ba3 d5 Bb2 Nd8 c6 d4 c7 Bd7 c8R Na2 Rc1 Nc6 Ba1 Kd6 e5+ Kd5 Bb2 Qc3 Ba3 Qa5 Bd6 Qc3 Bb8 Qa5 Bb5 d3 Ba4 Qc3 Nd8 Qa5 e6 Qc3 e7 Qa5 Rdh2 d2 e8B d1Q Ne6 Qc2 Rh6 Qcc3 Rd2+ Bd4 Bh5 Nf6 Nd8 Rg8 h8R Rg6 Ne6 Nh7 Be5 Rb8 a8B Rb2 Bb8 Rc2 Bb7 Rb2 Ba6 Na7 Bd3 Bdf6 Rh2 Rf2 Rh3 Qg7 Rc8 Qf8 Rc7 Qb3 R7c2 Qbc3 Rd2 Be5 Nc5 Ra6 Ne6 Bef6 Bc4+
RB1B1qQ1/p7/1Nnrn1N1/3pbnb1/1knr4/rN2p2b/Bq6/4KNB1 b - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 fxe4 g4 g5 a4 gxf4 g5 bxa4 Ra3 c5 Rg3 cxd4 Rg4 hxg4 c4 d5 h4 Kd7 g6 Kc6 c5 e5 g7 g3 h5 e3 h6 g2 h7 e4 Bb2 a3 Qe2 a2 Qd1 a1Q Ke2 Kb5 c6 f3+ Ke1+ d3 c7 e2 Rh3 f2+ Kd2 e1N Rh6 Be7 Bf6 Bh3 c8N Nc6 Nb6 Qf8 Ne2 g1B Ng3 Ng2 Qg4 Nf4 Rh5 Bd6 Bd8 Nh6 g8N Ne6 Ne7 Nf5 Qg8 Be5 Ng6 Qb2+ Kd1 Rb8 Nd2 e3 Nb3 Bh2 Be2 f1N Ke1 Nd2 Nf1 Bhf4 Bd1 Neg7 Bc2 Rb7 Bb1 Bg5 Ba2 Ne6 Rh6 Rd7 Rh4 Rd6 Rc4 Nce7 Rc8 Nc4 Ra8 Nc6 Na1 Ka6 b5+ Ka5 Nb3+ Kb4 Qg7 Rg8 h8B Nh4 Qh7 Nf5 Bg7 Rh8 Qg8 Rh4 Bgf6 Rd4 Bfe7 Bh6 Bh4 Bg5 Bf2 d2+ Kd1 Qa3 Ke2 d1R Bg1 R1d3 Ke1 Nc5 Na4 Qb2 b6 Rc3 b7 Ne6 b8B Rcd3 Nb6 Rc3 Nbd2 Ra3 Nb3
1r3q1N/1q1b4/2qkpNR1/2n2N2/1nn1b1rB/1p5B/1NR1qbp1/2KR3R b - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 Qg4 hxg4 e6 fxe6 Ba3 e5 Bc1 e4 Kd2 d5 h4 Kd7 c4 b5 a4 d3 h5 d4 h6 b3 c5 g3 h7 f3 a5 e3+ Kd1 e2+ Kd2 b2 c6+ Kd6 c7 b4 a6 g2 a7 f2 g6 b3 g7 e6 Ra5 Na6 Rg5 Qd7 Ra5 Rb8 a8N Nb4 Nh3 Nf6 g8R Qc6 Nb6 Bd7 Rg6 Rg8 Nc3 b1B Bb2 Ne4+ Kc1 Nc5 c8R e1Q+ Nd1 Qee4 Be2 f1Q h8N Bh6+ Ng5 Qf8 Bc3 Qed5 Bg4 d2+ Kb2 d3 Nf3 Rg7 Bf6 Be3 Ra1 Bf2 Bh4 Qb7 Nd4 Qdc6 Nd5 Bc2 N1c3 d1Q Nf6 d2 Bh3 Be4 Na4 Qe2 Rag1 d1N+ Kc1 Ne3 Nb2 Nc4 Rd1 Qcb6 Rh6 Rg4 Rc7 Nca6 Rc5 Q6c6 Rg6 Ne3 Rc4 Nc5 Rc2 Nc4 Nf5+
8/1NBr4/pRbNn3/1r2q2r/R2b1q1k/2ppN3/1Bnrnp2/1K1RR2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 exf6 Be3 f5 Bc1 f4 c4 Ke7 d5 Qb6 e3 Nc6 Qd4 cxd4 c5 Kd8 Bb5 Nb8 c6 Ke8 c7 Qd6 Bc6 dxc6 Rh2 Qd7 Rh1 Qd8 Kd2 Ke7 Kc2 Kf6 b4 Kg5 g4 f5 d6 h5 e4 h3 b5 a3 b6 a6 b7 c5 e5 c4 e6 h4 d7 h2 e7 h3 e8N a2 Nc3 d3+ Kb2 Ne7 Be3 Bg7 Bf2 f3 Ne2 f4 Rhe1 h1R Bg3 f2 Reb1 f1Q Bh2 f3 Be5 h2 Nc1 Nbc6 b8N Ra7 Nd5 Kh4 g5 Ng6 Ne2 Bb7 c8R Qc7 d8B Nf4 Ng3 Rh5 Nd6 Ne2 Re1 Ncd4 Nd7 Ne6 Rb8 Bc6 Rad1 a1N Kb1 Nc2 Bb2 c3 Nc5 Bd4 g6+ Qe7 g7 Rd7 g8R Qg5 Bc7 Qe5 Ne7 Rg1 Rgf8 h1R Nd5 Rh2 Nh1 Rgg5 Ne3 Qf2 Rb7 Qfg3 Rbb8 Qgf4 Ncb7 f2 Nd8 Qf7 Rg1 Ba7 Ng3 Rg4 Rdf1 Rh1 Rg8 Bc5 Rb6 Rb4 N8b7 Rb5 Rf8 Qf3 Rf4+ Qg4 Ra4 Qgf4 Rd1 Bd4 Rd2 Nd8 Rf1 Ne6 Rc1 Rd1 Nh1 Ng1 Re2 Rd2 Ree1 Ne2 Rcd1
3r1n2/1R2pN2/nN1bRp1q/p2q3b/1r2N3/k1pr4/1R1r3R/B1nNKB2 b - - 0 1 legal: proof: c4 b5 f4 h5 e4 f5 g4 hxg4 a4 fxe4 f5 bxa4 f6 d5 f7+ Kd7 Qf3 dxc4 Qf6 gxf6 h4 Kc6 b4 Kb5 d4 c5 d5 a5 d6 a3 h5 Ka4 d7 c3 b5 c2 h6 a2 b6 c4 b7 e3 h7 e2 Rh5 c3 Re5 g3 Re6 g2 Bg5 c1N Rd6 Nh6 Nd2 Ka3 Rb1 a1Q Ne4 Na6 b8N Nf5 Rd3 Bh6 f8N Nd4 Rb2 Ne6 Nh3 g1R Ng6 Rg4 Rd6 Nf8 Nhf2 Qa2 Bd2 Qd5 Nd1 Bf4 Re6 Bd6 Ne5 Rg3 Bg5 Rd3 Nf7 Qb6 d8R Qe3 Nd7 Rb8 Bf4 Rb4 Nb6 Qh3 Be3 Qh6 Rd7 Rg8 h8R Bb7 Kf2 e1R Bd2 Bc6 Rb7 Be8 Bg5 Ree3 Bf4 Rh3 Ke1 Rh2 Be3 Rhd2 Bg5 Qg7 Rh2 Qh6 Ne5 Bh5 Nf7 Nh7 Bf4 Rd8 Be3 Rf2 Bf4 Nf8 Bd2 Na2 Bc1 Rfd2 Rc2+ Kb3 Bb2 Nc1 Ba1 Ka3 Rb2
b4kB1/3p4/RpbN1K2/2bq3r/p2N4/RRnpB2B/2qn1Rq1/1r2Bb2 b - - 0 1 legal: proof: f4 b5 h4 e5 d4 exf4 d5 g5 d6 gxh4 Kf2 cxd6 Ke1 d5 Qd2 d4 Qd3 Qf6 Qd1 Qd8 b4 Qg5 a4 bxa4 b5 Bb7 b6 Bc8 b7 Qa5+ Qd2 Qb6 Qa5 Qd8 Qb6 axb6 Kd2 f5 Kd3 h5 c4 f3 g4 h3 e4 h4 c5 f2 e5 h2 c6 h3 e6 f4 Ke4 d3 Kf5 f3 g5 Na6 b8B Bc5 e7 Rh5 c7 Bb7 c8R Bc6 Nc3 Nf6 Ra3 Nc7 Rb3 Ncd5 Bg3 Ra5 Ra8 Qc8 Ra6 Rb5 Be3 Ne4 Nge2 Nd2 Ne4 Nc3 Nd4 Kf7 Bg2 f1B e8R f2 Rf8+ Kg7 Ra3 Rb1 Nd6 Ba8 Rg1 h1B Bh4 h2 Bh3 Bac6 Rf7+ Kg8 Kf6 Bhe4 g6 h1Q g7 Ba8 Beg5 Bec6 Be3 Qd5 Rg5 Bg2 Rf5 f1Q Be1 Qe2 Rf2 Bf1 Re7 Qc7 Re4 Qb7 N4f5 Qd1 Rb4 Qc2 Nd4 Qg2 Rbb3 Qd5 N6f5 Qg2 Ke5 Kf7 g8B+ Kf8 Kf6 Qc7 Bc4 Qd6+ Be6 Qdd5 Nd6 Nd1 Bf7 Nc3 Bg8
4r3/rQ1N2b1/1qN1N1bp/2p3Nb/1b1b1Np1/5Q2/kq4B1/Q2bRKn1 b - - 0 1 legal: proof: c4 a5 e4 d5 b4 dxc4 a4 b5 Qe2 f5 Nc3 fxe4 Nb1 Nc6 Qd1 Na7 Nc3 axb4 Nb1 b3 Be2 b4 Bf1 Nb5 axb5 Bd7 Nf3 Bg4 Ng1 Bc8 g4 h5 g5 Bg4 Ra6 Bc8 h4 Bf5 Rf6 Bh3 Rf4 Bc8 Rg4 hxg4 g6 Nh6 h5 Nf7 h6 Ra5 h7 Nh6 Bb2 Ng8 Bd4 Ra6 Be3 Ra8 Bh6 gxh6 f4 Kd7 d4 Kd6 d5 Kc5 g7 e5 b6 c3 d6 c2 d7 c1Q f5 b2 b7 b3 b8Q e3 f6 e2 f7 Kc4 Nc3 b1B Nb5 c5 Nc7 b2 Nd5 e4 Qg3 Bc2 Qh4 Kb3 Nh3 b1B Qh5 Qb2 Ng1 Qb6 d8Q Be6 Qf6 Ne7 g8N Ka2 Nc7 Nd5 Bg2 Nf4 Nh3 Ra7 Ne7 Bg7 f8N Bf7 Nd7 Re8 Qc1 Bd1 Ng5 Nh3 h8N Ng1 Nce6 Bbc2 Kf2 e1B+ Kf1 e3 Nhg6 Bb4 Ngf4 Bcg6 Nc6 Bc3 Qh3 Bd4 Qf3 Bh5 Qd8 Bfg6 Qc7 e2+ Ke1 Bdf6 Qb7 Be5 Kf2 e1B+ Kf1 Bd4 Qfe3 Bf2 Qf3 Nh3 Rg1 Be1 Rh1 Bdc2 Ke2 Bb4 Re1 Bd1+ Kf1 Ng1 Qa1+
3nN1B1/2bnp3/rQp1N1NK/2q1R1Nn/1Qp4r/q5q1/1qp2N1Q/4k3 b - - 0 1 illegal: No possible last move
K2b4/1nN1q2p/1Q3Q2/2p1Np2/4bQQ1/1RNp3r/Qb1pr1n1/2r1B2k b - - 0 1 legal: proof: d4 b5 a4 g5 axb5 Na6 h4 gxh4 c4 Nb8 d5 Na6 d6 cxd6 c5 Nb8 Kd2 Qa5+ b4 Qa3 c6 Qf3 e3 Qf5 Kc3 Qxf2 Bc4 e6 Bd5 exd5 Ra2 Kd8 Rc2 Ke7 Kb3 Ke8 Rc5 dxc5 Kc3 Bd6 Bd2 Be7 Bc1 Bf8 g4 Ke7 g5 Kd6 e4 Ke5 c7 a5 g6 f5 b6 h3 b5 h2 g7 a4 b7 d4+ Kc4 d5+ Kd3 a3 b6 a2 Qb3 a1B Ba3 Kf4 e5 Kg3 e6 Kg2 e7 Nh6 g8Q+ Ng4 e8N Be7 Bb4 Qe1 Nf3 Nc6 b8Q Ra3 b7 Bd8 Nc3 Qe7 Qa2+ Bb2 Ne5 Na5 Rb1 h1R Qa7 Rg1 b8Q Rc1 Qab6 Bb7 c8Q Kh1 Qce6 Ne3 Qf6 Ng2 Qg4 Rg8 Nc7 Re8 Ke2 d3+ Kf3 Ba1 Rb3 d4+ Kg3 Ne3 Kf4 Bb2 Na4 Bd5 Be1 d2 Nc3 Ng2+ Kg5 d3 Nf7 Ra4 Na8 Re4 Qbg3 Re3 Nc7 Nh4 Kf4 Qf8 Qf2 Rh3 Qe3 Be6 Ke5 Ng2 Qef4 Re7 Kd6 Bd5 Na8 Qe8 Nc7 Re2 Ne5 Qf8+ Kd7 Be4 Kc8 Qe7 Kb8 Nb7 Ka8
b2Qr2n/1nnQqnRn/1B3N1r/bq2QK2/2b5/7k/4b2R/n1R1bR1R b - - 0 1 illegal: No possible last move
Q3bb2/1QNr1Q2/1bn1KQB1/1q1n4/b1p1Qr1r/6Bk/b2qr2q/3BR3 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 g5 b5 e5 b6 exf4 a3 g4 Ra2 axb6 Ra1 b5 Qc2 b4 Qa4+ Nd7 Qd1 Nb8 a4 h6 Ra3 h5 Rf3 Bh6 Na3 Bf8 Nc2 Ra6 Ne3 gxf3 g4 Ra5 g5 Ra8 Ng4 hxg4 Kf2 Kd7 e4 Ke6 d4 c5 h4 f5 g6 b5 e5 c3 h5 g3+ Ke1 g2 Kf2 c2 g7 b3 h6 b4 h7 b2 a5 b1R a6 b3 a7 b2 Rh4 Nc6 Bd3 Bd7 Be4 Nf6 Qf1 Qc7 Rg4 Be8 Nh3 Rd8 a8B Rd7 Qb5 Nd5 Qb7 Qd6 Bd2 c1Q Be1 Qd1 Bd3 Qd2+ Be2 Rd1 Rg3 b1B g8Q+ Bf7 Qg7 Be8 Qg4 Ba2 Ng5+ Ke7 e6 Kf6 e7 g1B+ Kf1 f2 Kg2 f1R Kh3 f3 Ne6 f4 Nc7 f2 Re3 f3 Qe4 Ra1 Kg4 Qh2 Bd1 Rc1 Re2 Rc2 Re3 Kg7 Kf5 Kh6 Ke6 Kh5 Qf4 Rb2 Qf7+ Kh4 Re2 Kh3 Re5 Rg8 Re3 Rg4 h8Q+ Rh4 Qe5 Qa5 Qe4 Re2 Qf6 Bh5 e8Q Qd2 Qee7 Be8 Qef7 Qd3 Ba5 Qd2 Bb4 Rfe1 Ba5 f1B Bb6 Rf2 Ba7 Bfc4 Bb8 Bb5 Re2 Ba4 Re3 Nde7+ d5 c4 d6 Nd5 Re2 Ref1 Re1 Re2 Q6g6 Bb6 Qgf6 Rd8 d7 f2 Qh7 Rh1 Qhf7 f1Q Na6 Qfg1 Bg3 Qc5 Nc7 Qb5 Kf5 Rf4+ Ke6 Rc8 d8Q Rb8 Qdd7 Rd8 Qdc8 Rd7 Qa1 Qf2 Qe3 Kg2 Qc3 Ndb4 Qa6 Rhh4 Qcf6 Kh3 Qa5 Nb8 Be4 Qg2 Qb7 N8c6 Qaa8 Nd5 Bg6 Qh2 Qe4
qQ1Rk2q/qnB1q3/1n3b2/2N2R1r/Q1rR1nqR/QK4Rp/p3b2b/8 b - - 0 1 illegal: No possible last move
2b5/R3Q3/rq2b1nB/pQQB1b1n/Q2rq3/1K5b/3qBp1b/kN1Q3b b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Ra3 g4 Ra2 exf6 Ra3 f5 Ra1 f4 b4 h6 Ra3 h5 Rf3 Bh6 Na3 Bf8 Nc4 Qf6 Ne5 gxf3 g4 Qb6 g5 Qd8 Ng4 hxg4 Kd2 Ke7 c4 Kd6 Kc2 Ke5 e4 d5 h4 a5 h5 f5 b5 g3 h6 g2 b6 a3 g6 d3+ Kc3 a2 c5 a1Q+ Kb3 Kd4 b7 d2 e5 f2 e6 f3 g7 f4 e7 Qb1+ Ka4 Kc3 e8B d4 c6 d3 c7 Ra6 h7 Bd6 Rh5 Nd7 b8Q Ndf6 Qe1 Ne7 g8Q Ng6 Nh3 g1Q Rh6 Nh5 Bg2 f1B Ba3 f2 Bc1 f3 Qf7 Bh2 Bh1 Bg2 Qb5 f1B Qd1 Qb6 Ng1 f2 Qe7 Rf8 Nf3 Rf4+ Ka3 Rd4 h8Q Be6 Qda4 d1B Nd2 Bdg4 Rh7 Bgf5 c8Q+ Bc6 Qcd7 B1h3 Qhf8 Bb7 Bf3 Bc8 Bf7 Qc2 Be2 Qe8 Nf3 d2 Qdd5 d1B Bh6 Qed8 Nd2 Qe4 Bg8 Bb3 Qec5+ Bc4 Ra7 Qg5 Qfe7 Qgf4 Nb3 Qd2 Qdd6 Bd5 Qdd8 Bc6 Bd5 Kc2 Qdd7 Kb1 Qdd6 Qdf4 Nd2+ Ka1 Nb1 Qd2 Qg3 B6b7 Qgb3 Ba8 Qd1 Ba2 Bg8 Bae6 Bf7 Qec2 Bg8 Bh1 Bf7 Qe4 Bg8 Bed7 Bd5 Bde6 Kb3+
1bR2Q1Q/qR1NR1qq/Bn3nR1/3b3r/R3p1k1/4Kbnp/1b1r1Qq1/8 b - - 0 1 legal: proof: d4 a5 h4 g5 e4 c5 g4 cxd4 b4 axb4 Nd2 f5 Ndf3 fxe4 h5 h6 Nh4 gxh4 g5 Ra6 g6 Ra8 Bg5 hxg5 Ke2 d5 f4 Kd7 c4 Ke6 a4 Kf5 g7 b5 a5 e5 h6 e3 c5 g4 h7 h3 c6 d3+ Ke1 d2+ Ke2 g3 a6 d4 c7 b3 a7 d3+ Kf3 g2 Rc1 e2 Ke3 e1B Qh5+ Qg5 Qg6+ Kg4 Rc4 d1Q Qc6 b4 Qd5 b2 Qe4 b1Q Qd5 d2 Qd3 b3 Rc5 b2 Rc1 Ba3 Ne2 g1N Rc5 Qa1 Qc2 b1Q Rb5 Nf6 g8R Bb7 c8R Bg3 Nd4 Qg7 f5 Nbd7 Nc6 Nb6 Nb8 Bd5 Nd7 Ne2 Rb2 Rb8 a8R e4 Rge8 Qba2 Rg1 Qe1 Ra7 d1B Re7 Qb4 Rb3 Bb2 Ra4 Qd6 Rb5 Qc7 Rbb4 Rd8 h8Q Qh7 Qd2 Qa7 Qe1 Rb7 Qf2 Rc7 Rb3 Rc2 Rbb4 Rd2 Rg2 Rg8 Rb5 Rg5 Rb3 Nf4 Ba6 Bf3 Rg1 Ne2 Rd1 Nh5 f6 Bb8 f7 Nf6 f8Q Ng3 Rdc1 Rh5 R1c6 Ng8 Rh6 Nf6 Rbc3 Qg1 R3c7 Qg2 Rb7 Qc4 Re6 Qb4 Re5 Qbe7 Re6 Qef7 Re7 Qfg7 Rg6+
3b2b1/1Q1RprBq/R4Q1r/b3p1np/R4R2/1n2q3/2knQ1NK/q1Rr4 b - - 0 1 legal: proof: e4 a5 d4 c5 h4 cxd4 b4 axb4 h5 f6 e5 fxe5 Qg4 g6 Qf3 Na6 Qd1 Nb8 g4 Na6 g5 Ra7 Be2 Nb8 h6 Ra6 Bh5 Ra8 Nd2 gxh5 g6 Ra4 g7 Ra6 Ndf3 Ra3 Nh4 Ra8 Ng6 hxg6 Kf1 Kf7 Kg2 Ke6 f4 Kd5 c4+ Ke4 a4 d5 c5 b5 f5 g5 c6 b3 a5 g4 h7 g3 c7 b4 a6 d3 a7 d2 f6 Kd3 f7 d4 Qe1 d1R Rh2 b2 Kh1 b1Q Be3 b3 Raa2 b2 Re2 g2+ Kh2 Na6 Kg3 Be6 c8Q Nf6 g8Q Nc5 Ra4 Bh6 f8R Qb6 Rc2 Nb3 Qd7 Ne4+ Kh2 Ng5 Rf4 Rf8 a8R Rf7 Nh3 g1B+ Kg2 Qa1 Rc1 b1N Qf8 N1d2 Rb1 Kc2 Qb7 d3 R8a6 Qc5 Qe2 Qcc3 Ba7 Bb6 Kh2 Bd8 Bf2 Qd4 Bh4 Qe3 Qg7 Rf6 Qg6 Bg8 Qf5 Rf7 Qe6 Ne4 Bf6 Bg5 Bg7 Bh4 Qf5 Be1 Qf6 Ng5 Qf1 Nde4 Qf3 Bea5 Qe2+ d2 Rf1 Nd6 Nf4 Nc4 Ng2 Rc1 Qe1 d1Q Rf4 Qdd3 Qe2+ Ncd2 Rad4 Rf8 Rd7 Rd1 Ra4 Be6 Rf4 Rf7 Ra4 Rhf8 h8R Qh7 Qff1 Rf6 Qff3 Rh6 Qf6 Rf7 Rf4 Bdb6 Rha8 Bd8 R8a7 Rf8 Ra8 Bg8 R8a7 Rf7 Ra8 Bab6 Raa4 Bbc7 R8a6 Ba5 Rc1+
8/1r2nR2/1nQ2R2/k1NQ2qn/1p1Q4/p5p1/KnprbnR1/bQqQ2B1 b - - 0 1 legal: proof: f4 d5 g4 e5 c4 dxc4 b4 exf4 g5 a6 b5 h6 b6 hxg5 Bh3 g4 Bg2 Bf5 Bf1 Bc8 a4 Nh6 a5 Nd7 Bg2 Ng8 Bf3 Nb8 Bc6+ Nd7 Bb5 axb5 Ba3 Nb8 Bb2 Qd4 Bc1 Qd8 a6 Nf6 a7 Ne4 Nc3 Nf6 Na2 Ng8 Nb4 Rh6 Na6 bxa6 Bb2 Rh7 Bc1 Rh8 d4 Kd7 Kd2 Kc6 Kc2 g5 Kb2 f5 e4 b4 h4 Kb5 e5 c5 d5 f3 e6 g3 d6 f4 d7 f2 b7 f1N h5 g2 e7 a5 e8R a4 h6 c3+ Ka2 c2 h7 f3 Ba3 c1Q Re3 c4 Re4 c3 Ne2 g1N Qd3+ Ka5 Re7 c2 Rf7 f2 Ng3 g4 Bb2 a3 Qd2 Ne7 Rh3 Ne3 Qe1 f1N Bf6 Nc4 Bd4 Nb2 Ne4 Ng3 Rh2 Bg7 Rg2 Nh5 Nc5 Nh3 Bg1 g3 Qd1 Rg8 h8Q Nf2 Qd5 Bc3 Qhd4 Rg7 Rf6 Qg8 Qb3 Rf7 Qdd5 Qgg5 d8Q+ Kb5 Qd4 Bg4 Q8d5 Nd7 b8Q+ Nb6 Qbd6 Rd8 a8Q Be2 Qac6+ Ka5 Rb1 Nbd3 Qdd7 Ba1 Q7d6 Nb2 Qdd7 Qcd2 Rf1 Qc1 Q7g4 Rd6 Qd1 Rd7 Qgd4 Rb7 Rh6 Rf3 Rf6 Rd3 Rf7 Rd2 Rf6 N2c4 Qb1 Nb2 Rf7 Nh1 R1f5 Nf2 R5f6
3r1Q1q/4r3/RbKRR1qn/qB6/r1Rr2pQ/4NR2/1bq1k3/2R2bq1 b - - 0 1 legal: proof: b4 e5 f4 exf4 g4 a5 d4 axb4 a4 c5 Bb2 cxd4 Ba3 bxa3 Nf3 h5 Ng1 f5 Nc3 f3 Nd5 f4 Ne3 Nc6 Bg2 Nce7 Bf1 Nf5 gxf5 Qc7 Ng4 hxg4 Rb1 Qb6 Ra1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 c4 d5+ Ke5 g5 h4 b5 e4 f2 f6 d3 h5 d4 h6 g3 a5 b4 a6 g4 a7 f3 h7 d2 f7 g2 Be2 f1R Rh6 b3 Rf6 d3 Qb1 d1Q Rb6 b2 Ra6 a2 Nh3 g1Q Nf2 d2 Rd6 Qc2 Nd1 f2 Ne3 Ba6 Qe1 d1R Rc1 a1B Ke6 b1Q e5 Qg5 Kd7 Rd4 e6 Nh6 e7 Bb2 e8R Qgg6 Re6 Qa2 Bd3 Qa5 Be2 Be7 f8R Bd8 Rf3 Bb6 Bd3 Rhb8 h8Q Qh1 Qf8 Rd8+ Ke7 Rg1 Be2 f1Q Qh4 Kb4 c5 Kc3 c6 Kd2 c7 Qf2 c8R Re1 Rc5 Qfg1 Bb5 Qhh2 Rc4 Ke2 Qh5 Qe5 Qh1 Qh8 Qh4 Re8+ Kd7 Red1 Qhf6 Re7+ Kc6 Rd8 a8R R1d3 Qh4 Ra3 Ba4 Ra1 Rc5 Bc4 Bb5 Ra4 Ra7 Kd2 Ra6 Bf1 Rc4 Kd3 Qe8 Ke2 Qf8
Qb2bQ2/1N5k/2n1b2q/B2B2Nn/b2q3N/1nBBrr2/Kb1bn3/2Bq4 b - - 0 1 legal: proof: e4 a5 f4 g5 d4 c5 h4 cxd4 g4 f5 b4 axb4 a4 fxe4 f5 Bg7 Rh3 Bf8 Rf3 h6 Rf4 gxf4 g5 h5 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 Kd2 Kf7 c4 Kg7 Kc2 e5 Kb2 b5 h5 d5 h6+ Kh7 c5 e3 a5 g3 a6 e2 c6 e1B c7 b3 f6 b4 a7 g2 f7 f3 Bf4 f2 Qe2 d3 Bd2 d4 Bc3 e4 Bd2 e3 Qf3 e2 Qb7 Be6 c8B Nf6 Qf3 Bg7 f8B Nc6 Qg4 Nh5 Bd6 Rf8 Qh3 Rf3 Be3 d2 Be7 d1B Bf8 d3+ Nc3 d2 Ba6 Qd4 Bb7 Re8 a8Q Re7 Kb1 b2 Ne4 Ba4 Nd6 d1Q+ Bc1 Bd2 Qh4 e1Q Qf4 Qee3 Bfa6 f1N g6+ Kh8 h7 Nfg3 Bc4 Ne2 Ka2 b1N Ba6 Be5 Nb7 Bb8 Bd5 Re8 Qf7 Qh6 Bc5 Re7 Bb6 Re8 Ba5 Re7 Nh3 g1B Nf2 Bh2 Ne4 Be5 Qf4 Kg7 h8B+ Kg8 g7 Kh7 g8N Bg7 Nc3 b3+ Ka1 b2+ Ka2 Re8 Ne4 Qc3 Qd6 Be1 Ng3 Bc8 Qc7 Ree3 Bac4 Be6 Nf5 Nd2 Nh4 Nb3 Qf7 Bd2 Qf8 b1B+ Ka3 Bbf5 Bd3 Qb4+ Ka2 Bb2 Bc3 Bd7 Qc5 Be8 Nf6+ Kg7 Qd6 Qd4 Ne4 Kh7 Qf8 Be6 Ng5#
Rr2Rn2/B4nbn/1Qr2qk1/3n4/1R2R3/b1Q1RRbb/1nK3b1/bN4n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 fxe4 f5 c5 Na3 cxd4 Nb1 g6 g4 Nc6 f6 Nb8 Bh3 Bg7 Nd2 Bf8 Ndf3 h6 g5 h5 Bg4 hxg4 Nh4 Qb6 Nf5 gxf5 Rb1 Qa5 Ra1 Qd8 Kd2 Kf7 c4 d5 a4 e5 h4 b5 a5 e3+ Kc2 e4 h5 g3 a6 e2 c5 e1B h6 f4 a7 d3+ Kb2 b3 c6 e3 h7 e2 c7 g2 Rh4 b4 Bd2 d4 Qb1 f3 Rh5 f2 Ra2 f1B Nf3 g1B Nh4 Bg2 Nf5 Kg6 f7 Nf6 Nd6 Bg3 Ra4 e1B Be3 Bc3+ Kc1 b2+ Kd1 b3 Qa1 b1N Rh3 d2 Qb2 Nbd7 Ra6 Bg7 f8Q Rb8 a8R Na3 Rh2 Nc4 Qg8 Nf8 Rh5 Bch3 c8R Ne5 Nb5 Nf7 Ra4 Bb4 Nc3 Ba3 Qa1 b2 Rcc4 b1N Kc2 d1N Rab4 Nd2 Nb1 Nf3 Qc3 Nb2 Rh4 Rc8 Re4 Rc6 Rb3 B1h2 Rcb4 Ng1 Bf2 Be5 Re3 Bhg3 Raa4 Nh6 Qe6 Nf7 Rf3 Rg8 h8R Qd6 Ra8 Qd8 Rh4 d3+ Kc1 d2+ Kc2 d1N Rhe4 Rh8 Ba7 Rg8 Qd6 Bd4 Qb8 N6h7 Qb6 Qf6 Rae8 Nf2 Rfe3 Nfd3 Ra8 Nf4 Rf3 Kh5 g6 Nd5 Rfe3 Ne6 Rf3 Rb8 Rfe3 Nef8 Rf3 Bh8 g7 Kg6 g8R+ Bg7 Rh8 Ne6 Rd8 Nef8 Rde8 Nc4 Qe1 Ba1 Rbe3 Nb2+ Qc3
2RQq2Q/7N/1rb1Q2n/3QQ3/1n5q/nr2r2n/b1qQBr2/b1k1KbN1 b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 e5 a4 exf4 Na3 c5 Nb1 cxd4 Ra3 h6 Rg3 f3 Bf4 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 e4 Ke7 h4 Kd6 c4 Ke5 a5 b5 h5 f5 a6 d5 h6 b3 h7 d3 g7 Kd4 c5 Ke3 a7 g4 e5 d4 e6 b2 c6 b4 e7 b3 e8Q+ Be6 c7 g3 c8Q g2 Na3 b1N Qec6 b2 Nh3 g1N Qe8 Nc6 Nb5 Rb8 a8Q Nb4 Qh5 Rb6 Na3 Ba2 Be2 d2+ Kf1 f2 Ba6 d3 Qdg4 d1B Bb5 Kd2 Qgg2 Qe8 Qaf3 Ba4 Nc2 Na3 Qc5 b1R+ Ne1 Rb3 Nc2 Be7 Qfg3 Bf6 Qgg5 Ba1 Rh2 Kc1 Qgh6 d2 Qgg5 d1Q+ Kg2 f1R Qe6 Rff3 Qf2 Rfe3 Ne1 f3+ Kf1 f4 Qd8 Qd4 Qg2 f2 Qhe5 Qc5 Ng5 Qc3 Rh4 Qc2 Be2 Bb5 Qgd5 Bd7 Qdd4 Ba4 Kg2 f3+ Kg3 f1Q Qd2+ Kb1 Rc4 f2+ Nef3 Qe1 Rc8 Bc6 Q2d3 Kc1 Kg2 Qec3 Kf1 Qc4 Qd2+ Kb1 Kg2 f1B+ Kf2 Qf4 Ke1 Qfe4 Q2d6 Kc1 Qd6d7 Nh6 Qdd4 Rg8 h8Q Qg4 Nh7 Nh3 Ng1 Rf8 Q4d7 Rf2 Qd2+ Kb1 Q6d5 Qd4 g8Q Qh4 Q2d4 Kc1 Qge6 Qg4 Qd3 Qh4 Qd2+
knbK1R2/q3QRn1/1Q3q1r/1qb2r1b/4Rq1N/2npr1N1/5R2/R1q1N3 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 Kd3 f1R Ke4 b5 Ke5 d5 e4 Kd7 h4 Kc7 a4 Kb7 c4 f5 c5 b3 h5 b4 a5 g3 g6 f3 g7 d3 h6 f2 h7 d2 Na3 d4 Qb1 d1B Rh4 d3 Ne2 b2 Nc2 g2 Ne1 g1Q Ng3 Nh6 g8R f4 a6+ Ka7 c6 f3 c7 b3 Rhg4 Nf5 R8g7 Bc5 Rf7 Ng7 Ra2 Qe8+ Kf6 Qb5 e5 Re8 h8N Be2 Qc1 b1N e6 b2 e7 Nc3 Qe3 b1Q Re4 Qc1 Ng6 Rh8 e8Q Rh6 Qe7 Bd1 Ng2 Re1 Rd2 f1Q Rf2 Re2 Qd4 Re3 Ne1 Be2 Qed6 Bd1 Ke7 Be2 Nh4 Bd1 Rg2 f2 Kd8 Bh5 Qe7 Qcb2 Nef3 Qfc1 Ne1 f1Q Rc2 Qf4 Rf2 Kb6 a7 Kb7 Qdd6 Qba1 Ne2 Qg6 Ng3 Qgf6 Qe6 Nd7 Qb3 Rb8 Qe6 Ka8 Qb6 Rb7 Rd4 Nb8 Re4 Bd7 c8R Bf5 Rc6 Bc8 Rce6 Qaa3 Ra4 Rc7 Ree4 Rc6 Ra6 Re6 Ra5 Re5 Raa4 Rf5 Ra6 Qab4 Ra1 Qbd4+ Qd6 Qda4 Nhg2 Bb7 Qe6 Nd7 Nh4 Ba6 Qd6 Kb7 a8R Qa2 Rc8 Ka7 Kc7 Nb8 Rcf8 Bc8 Kd8+ Ka8 Qc7 Qa7 Qb6
n1b1n3/nNR3r1/R1q1Q1Q1/bNk1Nn2/6bn/1n1r2p1/1QK1N2N/2n1r3 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 c4 Ke7 h4 Kd6 e4 f1N+ Kd3 b5 a4 f5 e5+ Kc5 a5 d5 a6 b3 e6 g3 h5 b4 g6 f3 h6 b2 h7 f2 e7 b3 e8N f4 g7 f3 a7 Nd7 Nf6 Qc7 Rh4 Nd2 Rh5 f1R Rh6 f2 Qc2 Re1 Ra2 f1N Na3 b1N Rg6 b2 Nh3 Nh2 Ng1 Nb6 Nb5 Nc3 Ra1 b1N Ra5 Nhf3 Qd1 Qc6 Ra6 Na2 Qc1 Na3 Qc3 Nb3 Nd6 Nh4 Nf5 Nb5 Ne2 Nac1+ Kc2 Be7 Qb2 Bd8 Ng4 Nf6 g8Q Ne8 Qe6 Rg8 h8N Rg7 Nh2 Bc7 Nd6 d3+ Kb1 d4 Nhf7 d2 Ne5 d1N Kc2 Rb8 a8Q Na7 Nb5 Rb7 Qb8 Na8 Rf6 Bb6 Rf7 Rd7 Qb7 Ba5 Qb6+ Kb4 c5 d3+ Kb1 d2 Kc2 Rd3 Rc7 Nf2 Qg6 Ng4 Qe6 Nh6 Qg6 Qe4 Qbe6 N6f5 c6 Qh1 Re7 Kc5 c7 Qc6 Rf7 Bb7 c8N d1B+ Kb1 Rd5 Ncd6 Rd3 Rc7 Bc8 Nb7+ Kb4 Nf4 Bh5 Ne2 Bg4 Nd8 Kc5 Kc2 Rf1 Qgf6 Rh1 Qg6 Re1 Nb7+
2Q3q1/3B1bb1/R2R1Q1B/1RR2bK1/q1b1rnb1/n1q5/1pQ2krb/2r4R b - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 Nh3 e4 Nf2 a6 Ng4 axb5 Nd2 hxg4 Nf3 exf3 Ba3 b4 Bb2 Qa5 Bc1 Qd8 Kf2 Ke7 h4 Ke6 e4 Ke5 a4 d5 c4 f5 a5 b5 h5 b3 a6 b2 g6 b1Q a7 d3 g7 Kd4 e5 g3+ Kg1 f2+ Kg2 b4 Kh3 d2 h6 Ke3 h7 b3 c5 f3 c6 b2 e6 d4 c7 f4 Kg4 d3 Ra4 g2 Kh5 g1B e7 Qc2 e8R+ Ne7 g8Q Na6 Be2 f1B Qg6 f2 Qc6 f3 Kh4 Qc3 Qb5 Bh2 Qd5 Bf5 c8Q Nb4 Qf7 Nc2 Qd5 Na3 Rg4 Rg8 h8R Bg7 Rf8 Ng6+ Kh5 Bh3 Qc7 f1R Qce5+ Kf2 Qe7 Nf4+ Kg5 Rb8 a8R Rb4 Ra4 Re4 Qc2 d1B Ra6 d2 Qc6 Qb8 Rgg1 Bhg4 Rc8 Bh5 Qd8 Bf7 Bb5 Be2 Ba4 d1Q Rh6 Qdd4 Bd2 Rc1 Rd6 Qdc4 Bb5 Qa4 Qf6 Bec4 Rg3 Bg4 Qa8 Bce6 Rh3 Bef5 Rc5 Qcb4 Bd3 Ng6 Rab6 Kg2 Qc4 f2 Qc2 f1B Bb5 Kf2 Bd7 Bh8 Ra6 B1c4 Rb3 Bge2 Kh6 Qc3 Bg5 Nf4 Qc6 Rg7 Rbb5 Qg8 Bh4+ Rg3 Bg5 Rg2 Qb7 Ng6 Bd2 Bg4 Qc8 Bg7+ Kg5 Nf4 Kh4 Ne2 Bf4 Qf8 Bh6 Qg8 Qd1 Nf4 Kg5 Re2 Qb3 Re4 Qc2+
1qB2b1q/Q1Nkn1rQ/K7/n4N1r/1Nn3NB/1nqbrn2/1N2p3/5B1q b - - 0 1 legal: proof: e4 a5 f4 g5 d4 c5 h4 cxd4 g4 f5 b4 axb4 a4 fxe4 f5 Bg7 Rh3 Bf8 Rf3 h6 Rf4 gxf4 g5 h5 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 Kd2 e5 c4 b5 a5 d5 a6 d3 g6 f3 g7 f2 f6 g3 a7 d4 h5 b3 f7+ Kd7 c5 g2 h6 b2 h7 b4 Qe2 e3+ Kd1 d2 Kc2 d1R Kb3 e4 Kc4 b3 Kb5 d3 Qc2 e2 Qd2 e1Q Qc3 d2 Qa5 e3 Nh3 g1N Na3 b1N Nc4 b2 Nf4 e2 Nd5 Nc6 Nb4 Nge7 g8N Nf3 Nh6 Rg8 h8N Rg7 Ng4 Rb8+ Qb6 Na5 a8N Qe8 Nc7 Ba6+ Ka4 Qd8 Ng6 Na3 Nh4 b1Q Qa7 Rb5 Nb2 N3c4 Nf5 Qb8 Qa8 Qe4 Qa7 Qea8 c6+ Kc8 Ng3 Rh5 Nf5 Kd8 Nb5 Kc8 c7 Kd7 c8B+ Kd8 Bg2 f1N Bb7 Kd7 Nc7 Qg3 Bh3 Qe5 Bg2 Qc3 Bh3 Nb3 Bg2 Nfe3 Bh3 Rh1 Bf1 d1Q Bd2 R1h4 Be1 Nca5 Bf2 Bc4 Be1 Rh3 Bh4 Bd5 Kb5 Nec4 Ka6 Be4 Bg2 Qh1 Bf1 Nd5 Be7 Bd3 Bh4 Bd6 f8Q Ne7 Qf7 Qh8 Qg8 Qb8 Na8 Nh2 Qh7 Re3 Nc7 Nf3 Nbd5 Ng8 Nb4 Bf8 Qb6 Ne7 Qc5 Qg2 Qa7 Qh1 Bc8+
1qNB3n/qn5r/1b2b3/1bBqk3/1B1B2q1/1B1QK3/pn1Q1Q2/2b2Nqr b - - 0 1 illegal: No possible last move
2b1Qn2/3R2R1/2NR1nbq/qk2br1N/1N1bN1p1/1Kp4b/6n1/1N1r2qQ b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 c4 a5 c5 axb4 c6 g5 Bh3 dxc6 Qc2 c5 Kd1 c4 Bb2 Ke7 Kc1 Ke8 Qd1 f3 Be5 f2 Bf4 gxf4 g5 Ke7 Bf5 Ke8 Bg4 hxg4 Kb2 Kd7 a4 Kc6 e4 f1B h4 f5 d4 b5 a5 b3 g6 b4 e5 f3 e6 f2 a6 c3+ Kc1 b2+ Kc2 f4 a7 f3 h5 Nd7 e7 Bh3 e8Q f1N h6 b3+ Kd3 f2 Kc4 c2 g7 c1B h7 Bc5 Ra4 Nf6 g8N Bf4 Nf3 Be5 Ng5 Ne3+ Kc3 f1B Ra6+ Kb5 Rd6 Ng2 Ne4 Bd3 Qf3 c6 Rd1 Nf8 Rd2 Rb8 a8N Bb6 Rd7 c5 Qd1 c4 Qh1 Ba7 Nb6 Bc2 Nd5 Qa5+ Nb4 Rb6 Ng3 Bg6 Nh5 Rd6 Rg7+ Rd7 Ne7 Rg8 h8N Bc5 Nf7 Rh8 Ng3 Rh5 Nc6 Rf5 Ng5 Rd8 Rd1 Rd6 Nh5 Rd7 Nd2 b1Q Nge4 Qd3+ Kb2 Qe3 Nb1 Qh6 Kc3 b2 Kc2 c3 d5 Bg3 d6 Bd4 Kb3 Bge5 Rd2 Ra7 d7 Ra6 Nd8 Rd6 Ndc6 Rd5 d8R Rd7 Rc2 Rd6 Rdd7 Rd5 Nbd2 b1Q+ Rb2 Qg1 Nb1 Bb6 Rc2 Rd1 Rcd2 Be3 R2d6 Bb6 Neg3 Bbd4 Ne4
k2QR1rq/3Q1p2/Nb1KNrn1/1bQ2q2/1qQR2r1/6nn/1p3n2/n2Q1N2 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 Kd3 f1Q Ke4 d5+ Ke5 Kd7 a4 Kc7 c4 b5 e4 Kb7 h4 d3 g6 g3 c5 b3 h5 d2 a5 b4 g7 b2 h6 g2 h7 b3 Qf3 d1R Rh3 d4 Ne2 g1N Ra4 d3 Nd2 b1Q Nd4 Bd7 Nc6 Ra6 Rd4 Ne7 g8Q Ka8 Qg5 Rg8 h8Q Ng6+ Kd5 b2 e5 Qe1 Nf1 d2 e6 Qf5+ Qe5 Bd6 e7 Bc7 e8Q Bb6 Rh8 Nh3 Kd6 Qc8 Qfd5 f3 Qgd8 f2 Qf3 Ra1 Qd1 Ra4 Q8e6 Be8 Qc4 Nd7 Nb8 Qee4 c6 Nc5 c7 Bb5 Qee8 Nb3 Qed7 Na1 Qc5 Qh4 Qc4 Qb7 c8Q Qbe4 Q8c5 Qe1 Qdb3 d1N Qbc2 Qb4 Qb1 Rg7 Re8 Rg8 Qbc2 Qh8 Qc1 Ra7 a6 Rc7 a7 Rb7 Ne3 f1N Q1c2 Ndf2 Qd1 Ng3 Nf1 Rc7 Qde6 Kb7 a8N Rc8 Nc7 Ra6 Nd5 Ka8 Nf4 Rc7 Qec8 Re7 Qdd7 Re4 Ne6 Rg4 Qdd8 Ra3 Qcd7 Rf3 Ne3 Qb1 Nf1 Rf6 Kd5 Qe4+ Kd6 Qf5 Na6+
1Qr1r1B1/3p1p1K/Bq1nb1BQ/nB2B3/4r1nb/3N3N/3qr2Q/1n2k2n b - - 0 1 legal: proof: g4 a5 a4 c5 d4 cxd4 f4 g5 h4 gxf4 b4 axb4 g5 h5 Rh3 e5 Raa3 e4 Raf3 exf3 Rg3 Ra5 Rg2 Ra8 Rg4 hxg4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ d3 c3 b5 e5 b3 e6 b4 e7 f2 e8Q b2 h5 b3 a5 f3 h6 g3 a6 g2 a7 Nf6 g6 Be7 h7 Qb6 g7 Ba6 Qc2 Nc6 Qd1 Na5 Qd2 Ng4 Qb8 Rc8 h8Q Bh4 Ne2 g1R g8B Rg2 Qg5 d2 Na3+ Kd3 c4 d1Q c5 b1R c6 b2 c7 Qd2 Qgh6 Bc4 Nf4+ Ke3 Be2 f1N Nc2+ Kf2 Nb4 Ke1 Nh3 f2 Q8h7 Bd5 Bb5 Nfe3+ Kf4 Re8 c8B f1N Bca6 Nec4+ Kf5 Rge2 Nd3+ Kd1 Qh8 R8e4 Qh2 Rc8 a8B Ra1 Bac6 b1N Bb2 Ree8 Q8e5 Ra4 Qb8 Rb4 Be5 Ra4 Qe3 Ng3+ Kf4 Be6 Be4 Nh1 Bg6 Bf2 Kg5 Nd6 Kh5 Bh4 Qh6 Rae4 Qf8 Ne3 Kh6 Ng4+ Kh7 Qg5 Nc5 Qd2 Qh6 Ke1 Nd3+
br3bn1/q1pN4/B6Q/bp3Br1/pn2k3/3q1q1Q/q3B2K/BBQ1Nq2 b - - 0 1 legal: proof: f4 d5 h4 g5 b4 gxh4 c4 dxc4 f5 a6 b5 e6 b6 exf5 Rh3 f4 Rh2 Qd4 Rh1 Qd8 a4 Nh6 g4 Nc6 a5 Nb8 Ra2 Nc6 Rb2 Nb8 Rb5 Ng8 Rh3 Kd7 Ra3 axb5 a6 Ke7 a7 Ke8 Ra6 bxa6 Kf2 Ke7 Kg2 Kf6 d4 h5 e4 a5 b7 f3+ Kh1 a4 d5 Ke5 g5 f5 d6 h3 d7 c3 g6 h2 g7 c2 Nd2 f4 Be2 h4 Nb3 f2 Nc5 Na6 b8Q f1Q Qb6 f3 Qh6 Rb8 a8B f2 Bb7 Nb4 Ba6 Bb7 Qd3 Qe8 d8Q Qe6 Qh3 Qa2 Qdd2 Ba8 Qe1 Rh7 Nd7+ Kd4 Bg5 c1B Bd2 Bb2 Qc1 Bc3 Bf4 Qd1 Bg5 Qd3 Bf6+ Kc4 Bd4 f1Q Be5 Qf2 Nf3 Qa7 Bf6 Rh8 e5 Kd5 e6 Ke4 e7 Rh7 e8B Rh8 Qhd2 Rh5 Qh6 Rg5 Bh5 Bd2 Bg4 Bc3 Bd4 Be1 Kg2 Bd2 Ne1 h1Q+ Kf2 Qhf3+ Kg1 Qf1+ Kh2 Qff3 Qg2 h3 Ba1 Nc6 Qg3 Ba5 Be6 Nb4 Bg4 Ne7 g8B Qf1 Bb3 Ng8 Bc2 Qf6 Kh1 h2 Bb1 Qff7 Kg2 Qf6 Qgh3 Qc3 Nf3 h1Q+ Kg3 Qhe1+ Kh2 Qf1 Ne1 Qcf6 Be6 Q6f3 Bf5+
2Qq2r1/5KR1/QQqQ2n1/2p1Q2k/1r3NpB/1Brn1b1n/2p2Q1n/1b4b1 b - - 0 1 illegal: No possible last move
kb4b1/2r5/pnrQ4/2qpB2p/B1BnbqR1/BQnq3q/8/K1Q1BR2 b - - 0 1 legal: proof: f4 b5 h4 c5 a4 bxa4 d4 cxd4 f5 g6 h5 e6 h6 exf5 Rh4 f4 Rh5 Bg7 Rh1 Bf8 g4 Bd6 g5 Qc7 Nc3 Ke7 Ne4 Ke8 Ng3 Qd8 Nh5 Bf8 Nf3 Bb7 Ne5 gxh5 g6 Ba6 g7 Bc8 Ng6 hxg6 Kd2 f5 b4 f3 e4 f4 c4 a6 Kc2 d3+ Kb1 d2 c5 f2 b5 f3 b6 g5 c6 a3 c7 g4 b7 a2+ Kb2 g3 h7 g2 e5 g1Q e6 Ra7 e7 Nh6 g8B Nf5 Rb1 a1Q+ Kb3 Qe5 Ka2 Qf4 Rb3 Nd4 Qe1 d1N Rb4 Nc3+ Kb2 d5 Bc4 Kd7 Qe2 Kc6 e8Q+ Qd7 Rb5 f1Q Q8e7 f2 Q2e3 Qd3 Ka1 f1B Rb4 Bg2 Bf7 Qh3 Be8+ Nd7 b8B Be4 Qg3 Rg8 h8B Rg6 Be5 Bg7 Ra4 Kb7 Qd6 Ka8 Qf3 Qf2 Rf1 Nb6 Ba3 Be6 c8Q Bg8 Rb4 Rc7 Ba4 Bf6 Qd1 Bh4 Qb1 Bg3 Qb3 Rf7 Qcc5 Bh2 Bc7 Rfg7 Bd8 Rc7 Bh4 Q2e3 Be1 Qg1 Qd7 Rgc6 Qdd6 Qg7 Qg6 Qgf8 Qg1 Bg3 Qd6 Qfc8 Qe3 Qcf8 Qc1 Bh2 Qh6 Qc5 Qd6 Qf2 Qcb2 Bg6 Qd8+ Rc8 Bb8 Nde2 Bcb5 Qfe3 Re4 Nd4 Rg4 Be4 Bc4 Be5 Qf6 Qf4 Qc1 Bd6 Bc7 Be5 Bd8 Bb8 Qd6 R8c7 Bf6 Qh1 Bg7 Qhh3 Be5
2r2BnK/6Rp/2B1Bq1B/b3rbB1/q4Q2/bBp1Q3/pNn5/q1kb1n2 b - - 0 1 illegal: No possible last move
br3b1r/p3b2p/Q1QN2N1/2p1B2K/Qp1nQ3/2qQ2q1/3q1q1k/2NB1n2 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 e5 f4 exf4 h4 gxh4 b4 d6 Ra2 c6 Rb2 bxa4 b5 c5 Rb4 Ke7 Rh3 Kd7 Rc3 cxb4 c5 Ke7 c6 Ke8 Rc5 dxc5 Kf2 Ke7 Kf3 Kd6 e4 Ke5 d4+ Kd6 g5 f5 c7 h3 b6 a3 b7 h2 d5 Ke5 d6 a2 d7 a1B g6 Nf6 g7 Nd5 g8N Ne3 Ne7 Nc6 b8Q Bb7 Be2 Nf1 Qc8 Rb8 Qa4 Ba8 Nc3 Bb2 Nb5 h1Q+ Kf2 f3 Bd1 f4 Nd6 Qh5 Ne2 Qg6 Qca6 Nd4 c8Q Qg8 Qcc6 Qc4 Nef5 Qc3 Nh4 Qc7 d8Q Qd7 Kg1 f2+ Kg2 Ba1 Bb2 f3+ Kh1 Qg4 Nc1 Kf4 e5 Kg3 e6 Qf4 e7 Qfd2 e8Q Ne2 Qf6 Qc4 Qfe7 Ne3 Bg7 Bf6 Na2 Nd4 Qe6 Qcc3 Qg6+ Bg5 Qgd3 Bge7 Qed5 Kh3 Ng6 Kg3 Nc1 Kh3 Ne2 f1Q+ Ng1+ Kg3 Q5e4 f2 Bf6 Qfe1 Bg7 f1Q Be5+ Kf2 Kh2 Qfe2 Kh3 Nf1 Nc4 Qee3+ Kg4 Qg3+ Kh5 Qee3 Ne2 Qef4 Nc1 Kg1 Na2 Kh2 Nd6 Qff2 Nc1
rn1q3k/Qp2np2/bB2B1Nr/p4Q1B/b5B1/3Q3p/5p2/bNKb2Bq b - - 0 1 illegal: No proof kernel
qqr2rn1/2R3nR/3b2r1/Q3qBrb/R5nq/Q1Q2b1k/KB2pB1R/8 b - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 c5 Nc3 cxd4 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Bg7 Nf2 Bf8 Ng4 hxg4 Kd2 Kf7 h4 e5 a4 d5 c4 b5 Kc2 b3+ Kb2 f3 a5 e3 a6 e4 f6 Ke6 a7 Kf5 c5 d3 c6 d4 h5 d2 g6 d3 f7 f2 c7 b4 h6 e2 h7 e1Q g7 g3 Be2 f1R Ra4 e3 Qc2 d1B Ra3 g2 Ra4 g1R Rh6 Rg5 Rc6 Na6 Rb6 Bb7 c8R Qh4 Qc4 d2 Qb5+ Nc5 Kb1 b2 Ka2 b3+ Ka3 b1Q Qb4 b2 Rg6 Bf3 Bc4 Kg4 Rh6 Qf5 Bb3+ Kh3 Bc2 b1Q Rc7 Ne6 Bb2 Bd6 f8Q Rc8 a8Q Qe5 Qa5 Rfg1 Bf5+ R1g4 Bd4 Qbe4 Bb2 Qa8 Ka2 Bde2 Qbc5 d1N Qcc3 Nf2 Rh5 Qe8 Qe7 Q8b5 Qf8 Qbb8 Rh6 Ne7 g8R Bd1 Rgg6 Ng7 Rh5 Rg8 h8B Bde2 Rh7 Bd1 Qf7 Rgf8 Qfb3 Ng8 Qa3 Bde2 Bd3 Rg1 Bb1 Ng4 Bf5 Ne6 Bf6 Ng7 Bd8 Bb5 Be7 e2 Bd8 Be8 Be7 Bb4 Bc5 Rg3 Bf2 Bc5 Rd6 Bh5 Rd1 Be7 Rg1 Bd6 Rg2 Rg6 Bc2 N4h6 Bd3 R3g5 Bf5+ Ng4 Rh2+
3R3Q/b1qQb1n1/1R3p2/B1Bbrr2/5Qb1/r2R4/bbB1p1R1/qnk1K3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 Bg2 f5 Bf1 cxd4 f4 Na6 Nc3 Nf6 Nf3 Qb6 Nd2 Nb8 Nde4 fxe4 f5 Kf7 Nd5 Ng8 f6 Ke6 f7 Qd8 Nf6 exf6 Bf4 Ke7 Bg5 Na6 Bc1 Nb8 h4 Ke6 a4 Kd5 e6 b5 h5 g5 e7 g3 e8R g4 c3 e3 h6 b3 a5 e2 h7 Kc4 a6 d5 a7 b4 Re3 b2 Rf3 b1B Rh3 b3 Rd3 g2 Rdg3 g1B Bg2 b2 Bf4 d3 Be4 d4 Bf3 Qc7 Rh6 Be7 f8R Nd7 Be4 Ba2 Rd8 b1R Rhh3 Ne5 Bc1 Rb5 Qc2 Nh6 Qb2 Nf5 Bb7 Ng7 Rh5 Re8 Qd2 Kb3 h8B Nc4 Rg2 g3 Qg5 Kc2 Rh6 Rf5 Be4 Na3 c4 Nb1 c5 Be3 Ba3 Bc1 c6 Bb2 Bc5 Bd7 Qg4 Kc1 Rh3 Bd5 Ra6 B7e6 Rg1 g2 Rb6 Bd7 Re3 Bc8 Qf4 d2+ Kf2+ d1B Bc2 d3 Ke1 Bd7 Bb4 B7e6 Ba5 d2+ Kf2 Rb8 a8Q Bc8 Qb7 Ra8 Rd3 Bce6 Qc8 Ba2 Qd7 Bed5 Bc3 Ra3 Ba5 Bf3 Qg5 Bg4+ Qf4 Qe5 c7 Qd6 c8Q Qc7 Rh1 Bd5 Rh2 g1B+ Kg3 Be3 Rg2 Ba2 Ra6 Ba7 Rb6 Bd5 Kf2 Ba2 Ba4 Bdb3 Qb8 Nh5 Bg7 Bd5 Bf8 Ng7 Qa8 Bg8 Bc2 Bgd5 Re3 d1Q Qb8 Qd4 Ke1 Bd6 Qa8 Ree5 Qb8 Be7 Rd3+ Nd2 Qh2 Nb1 Qh8 Qc8 Qbc7 Qa4 Qc4 Qc7 Qf4+ Nd2 Qh1 Qe4 Rdg3 Bc5 Bb3 Qb1 Qh8 Qa1 Bc2 Bb4 Rd3 Bc5 Qf3 Nb1 Bd6 Be3 Bdb4 Bc5 Qe4 Bd6 Bc5 Be7 Qf4+
1rR1Q2q/BbK3b1/qQ6/8/Qq2rn1q/1n1bR1R1/1p1k1bpq/1B1B2Q1 b - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 c5 Nc3 cxd4 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Bg7 Nf2 Bf8 Ng4 hxg4 Ke2 Kf7 a4 d5 c4 b5 h4 e5 g6+ Kf6 g7 d3+ Kd2 d4 h5 Kg5 c5 g3 c6 f3 f6 Kf4 f7 f2 a5 g2 h6 b3 h7 b4 c7 b2 a6 b1Q a7 b3 Qc2 e3+ Kd1 e4 Rh3 d2 Ke2 Na6 Rh6 Bb7 c8Q Nf6 g8Q Nh5 Q8c4 Nc5 Ba3 Bg7 Rb6 Rb8 a8B b2 Qb5 Qh4 Rg6 Qa2 Rg5 Nb3 Qgc8 Re8 Bc5 Qa6 h8Q Re7 Qcc4 Re8 Kd1 e2+ Kc2 Ke3 f8R e1B Ra3 Nf4 Bd3 f1B Qb6 Bf2 Qa4 Re7 Qce8 Be2 Kb1 d1Q+ Ka2 Kd2 Bb1 d3 Rg3 e3 Qhh5 Qg1 Rg8 Qhh1 Qh2 Re4 Rh8 Qe1 Qg1 Bf1 Rg8 e2 Re3 Qh8 Rf8 Na1 Rc3 Nb3 Ka3 Kd1 Rg3 d2 Rce3 Kc1 Rg8 d1Q Bd4 Kd2 Kb4 Qc1 Rf8 Qc6 Rg8 Qch6 Rf8 Na5 Kc5 Qh2 Kd6 Nb3 Rg8 Qd1 Kd7 e1Q Kc7 Bd3 Rf8 Qdh5 Bc5 Bc6 Bb7 Q5h3 Bc8 Q3h6 Bg4 Bb7 Bd1 Q6h5 Qed7 Q5h4 Rc8 Kc1 Qe8 Qb4 Qf6 Kd2 Ba7 Bc6 Qd4 Bb7 Qb6
1bbQ3B/qrB4r/rn3Qr1/nKp4k/4BB1b/1N3p2/2bQ2Nr/2N3q1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 g5 b5 e5 b6 exf4 a3 g4 Ra2 axb6 Ra1 b5 Qc2 b4 Qa4+ Nd7 Qd1 Nb8 h4 Qd4 a4 Qd8 Ra3 h5 Rf3 Bd7 g3 Bc8 Rh2 Qg5 Rg2 gxf3 g4 Qd5 g5 Qd8 Rg4 hxg4 e4 c5 d4 f5 Kd2 Kf7 e5 Kg6 a5 b5 e6 g3 e7 b3 Kc3 g2 e8N f2 a6 f3 d5 f4 d6 b2 a7 b4+ Kd2 c3+ Kd3 b3 Kc4 c2 d7 Nf6 Nd2 b1B Ng7 b2 Ne6 Nd5 Ne2 g1R Nb3 Qe7 d8B Rh7 Nbd4 Kh5 g6 Nb6+ Kb5 Nc6 g7 Rg6 g8Q Na5 Bg2 f1R Qd3 f2 Qf7 Rh1 Qf6 f1Q Nb3 Qg1 Be4 f3 Bc7 Rh2 B1f4 c1B Qe3 Bd2 Nec1 Be1 Qed4 Bc2 Qd2 Kg4 h5 b1R h6 Kh5 Nd8 Bh4 Ne6 Rb8 a8Q Rb7 Qb8 Ra1 Qa8 Qf7 Qb8 Bd6 Qa8 Rhg7 h7 Ra4 h8B Rh7 Bd8 Bb8 Bdc7 Nac4 Qaa5 Qe7 Qd8 Qg7 Qad2 Ra6 Be3 Na5 Nf4+ Kh6 Ng2+ Kh5 Bg5 Rba7 Be5 Qb7 Be3 Qa8 Bh6 Rab7 Bhf4 Qa7 Bc7
b1n5/1r2p2K/N2q2Rn/b1p3Qq/4Rqb1/qbk3RQ/1r3Nb1/NQ3N2 b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 axb4 g4 d5 Bh3 dxc4 Bb2 g6 Be5 fxe4 f5 g5 Bf4 gxf4 g5 Be6 Bg4 hxg4 Qc1 Bd7 Qd1 Bc8 Kf2 Kd7 d4 Kc6 a4 Kd5 h4 b5 g6 c5 h5 e3+ Kg2 e2 h6 e1Q g7 b3 a5 b4 f6 g3 Kf3 g2 f7 b2 h7 b3 a6 c3 a7 Kc4 d5 c2 d6 c1Q d7 Qh4 Ke4 f3+ Kf5 f2 Kg6 f1B Nh3 g1Q+ Ng5 Bg2 Rh3 Qgf2 Ra6 Nh6 g8Q Qff4 Rd3 Bg7 Nh3 Bc3 Nf2 Ba5 Rg3 Nc6 f8R+ Kb4 Qd3 Rb8 a8N Rb7 Nc7 Na7 Nd2 b1B Nf1 Ba2 Qb1 b2 Re6 Qce3 Re4+ Kc3 Rf6 Bb3 Na6 Qh5+ Kg7 Qdc7 d8N Qcd6 Rfg6 Bg4 Ne6 Nc8 Nd4 Qd3 Nc2 Qdf3 Qa2 b1B Na1 B1c2 Qb1 Q3e3 Rb4 Bce4 Ra4 Bef3 Re4 Qc1 Qd5 Qa3 Qg5 Rf8 h8Q Rf5 Qa2 Rd5 Qh7 Rd2 Qb1 Ra2 Qh8 Rb2 Kh7+ Qde5 Qd8 Qff5 Re2 Qff4 Rh3 Rb5 Re1 Qd5 Re5 Qd3 Re6 Bfd5 Re4 Ba8 Rhe3 Rb7 Qc7 Qf3 Qh2 Qf6 Rg3 Qf4 Ne3 Qd4 Qh3 Qdd6 Nf1+
1Qn1kB2/1BQ4b/5r1Q/Rrb1qn2/1rnq1RR1/1Q5r/1np2pB1/1bK5 b - - 0 1 legal: proof: g4 g5 b4 h5 c4 d5 f4 gxf4 b5 e5 g5 e4 Na3 dxc4 Nf3 exf3 Nc2 a6 Ne3 axb5 Ng4 hxg4 Qb3 b4 Qc2 Bc5 Qd1 Bf8 a4 b5 h4 f5 d4 c5 Kd2 f2 e4 f3 a5 g3 a6 c3+ Kc2 f4 d5 c4 h5 b3+ Kb1 c2+ Kb2 g2 e5 g1Q a7 b4 d6 Ne7 g6 Qg5 e6 Nbc6 h6 Na5 g7 Qe5+ Qd4 Rb8 g8Q Rb5 Bh3 f1R a8B f2 h7 f3 Bf4 c1N Rg1 c3+ Kb1 b2 Qb6 Nc4 Rg4 Nd3+ Kc2 b1R Bh2 Ndb2 Ra5 Bd7 Qc6 Nc8 e7 Qb6 Rf4 Qbd4 Qc7 Bf5+ Be4 Bg6 Bg2 Bf5 Kb3 c2 Bb7 Rg1 Qg3 f1N Rg4 f2 d7+ Kf7 d8Q Nfe3 Qdd6 Ke8 Qh6 Bd3 Rf4 Nf5 Ka2 Be4 Qb3 Rh1 Bg3 Rh3 Bh4 Rg8 h8R Rg6 Rg8 Rf6 Rgg4 Ng7 Bg5 Bh7 Qh4 Nf5 Bh6 Re1 Bg7 Re4 Qh6 Nd1 Qc3 b3+ Ka1 b2+ Ka2 Nce3 Qb3 b1B+ Ka3 Nc3 Kb2 Ncd1+ Kc1 Nc4 Rg6 Ndb2 Rgg4 Ree3 Qb4 Rb3 Qc3 R3b4 Qb3 Kf7 e8Q+ Kg8 Qec6 Bc5 Qb8 Kf7 Qcc7+ Ke8 Bf8
KBq1r2q/B1bb4/n1Q1NQ2/1pr2r2/Nr3p2/BQ5n/1q5k/nN1Bq3 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 h5 g4 hxg4 d4 cxd4 f5 a5 Ra2 axb4 e4 f6 h4 Nh6 Rh3 Na6 Rf3 Ng8 Rf4 Nb8 Ra3 Ra5 Re3 exf4 e5 Ra7 e6 Ra8 Re5 fxe5 Ke2 Ke7 Kd3 Kf6 Kc4 g5 Kd5 b5 c4 d3 h5 e4 e7 e3 e8Q d2 h6 b3 h7 e2 a5 e1Q a6 g3 c5 g4 c6 Kg5 f6 Kh4 f7 g2 a7 Kg3 c7 b2 Qde2 d1Q+ Bd2 Na6 Q2e6 Nf6+ Kd4 d5 Nf3 g1R Qe3 Qc2 Be2 Bd6 f8B Bd7 c8N Bc7 Bh6 Ne4 Qb3 Nec5 Ne7 Qc8 Qd8 Rf8 h8B Rf5 Ng5+ Kh2 Bf6 g3 Be5 g2 Bf8 Rf1 Ne6 g1N Bf3 Nh3 Bd1 Rg1 Bb4 Rgg5 Ba3 Qh4 Bfg7 Qh8 Bgf6 Rb8 a8Q Qe2 Qc6 Qg2 Nc3 b1R Na4 Rh5 Bh4 Qc2 Bf2 Rb2 Qc4 Rb4 Qf8 Ra8 Qf6 Qb2+ Nc3 Qce8 Nc8 Qeg8 Nb6 Qc8 Na4 Nb3+ Kd3 d4 Ke4 d3 Kd5 d2 Nb1 Na1 Qb3 Rhg5 Ba7 Nb8 Bh5 d1Q+ Kc5 Qe1 Bd1 Bd6+ Kb6 Na6 Bd4 Rc5 Bb8 Rgf5 Bf2 Qcf8 Kb7 Bc7 Ba7 Re8 Bb8 Re7 Be3 Qc8+ Ka8 Re8 Bd4 Rcd5 Bb6 Rc5 Ba7
1b1B1bQb/p2qn2N/1QB1b2Q/pQbnN3/1pr3Nb/1rp3BK/8/4k3 b - - 0 1 legal: proof: g4 d5 a4 h5 h4 hxg4 c4 b6 e4 f5 b4 fxe4 a5 Qd6 Ra4 Qd8 b5 bxa5 Rb4 c5 Rh3 cxb4 c5 Qd7 Rc3 Qd8 Rc4 dxc4 d4 Kd7 f4 Ke6 Kf2 Kf5 Kg2 g5 c6 e5 b6 g3 d5 e3 h5 Ke4 d6 e2 b7 e1B h6 g4 f5 Nf6 d7 Bc3 c7 Nc6 b8Q Ne7 h7 Nfd5 Nd2+ Ke3 f6 e4 Kh1 Kf2 f7 e3 Bg2 e2 Ngf3 e1B Ne5 Bb2 Bf3 g2+ Kh2 g3+ Kh3 g1B Qb5 g2 Nf1 Bh2 Ne3 g1B N3g4+ Kf1 Qb6 Bc5 Qa4 Bh4 Bf4 Ke1 Qab5 Qe8 d8B Be6 c8Q Qd7 Qca6 Rc8 Bh1 Rg8 h8Q Rg6 Qg8 B2g3 Nc6 Bh8 Ne5 c3 Bf3 Rf6 Bg2 Bh2 Bg3+ Rf2 Bf4 Rb2 Bg3+ Bf2 Bh1 Rb3 Bf3 Rc4 Bh1 Bh6 f8N B6g7 Nh7 Bf8 Bf4 Bc5 Bg2 Bf7 Qh6 Be6 Qab6 Bd6 Bh1 Bg1 Bf3 Bb8 Bg2 Bc5 Bf3 Nf6 Bc6 Nfd5 Bg3+
1R1nNr2/1n1qRrN1/pn2RNK1/1rb3QR/3p2Rb/1k2Rb2/7n/n6n b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kd3 Ke7 Ke4 Kd6 Kf5 Kd5 b4 Kc4 e4 f1R h4 d5+ Ke5 f5 b5 a3 g6 d3 c3 d2 b6 g3 g7 g2 b7 a2 h5 a6 h6 d4 h7 f3 Qe2+ Kb3 c4 d1N c5 f2 c6 f4 c7 f3 Nc3 Ne3 Rh4 Nf6 g8R Ne8 Re1 a1N Rh6 Qd7 Rg4 Bc5 Nd5 Nd6 Kf6 Nec4 e5 Rf8+ Kg6 Nb6 h8R Nc6 b8R Nd8 e6 N6b7 Nh3 g1B e7 Bh2 e8N Bg3 Qe7 Bh4 R6h7 Rf7 Re2 Rb1 Nhf4 f1N Ndf6 f2 Ne6 Nh2 N6g7 f1N Re6 Ng3 Rh5 Nh1 R8h7 Ka2 Re3 Rb5 Qe5 Kb2 Qg5 Kc2 Re6 Kb3 Ne4 Na5 N4f6 Bb7 c8R Bf3 Rcc6 Nab7 Re7 Be1 Rce6 Bf2 Rh3 Bh4 Rh5 Nc6 Rc8 Rb8 Nd6 Ra8 Rc7 Raf8 Nde8 Ncd8 Rhg3 Bb4 Rc8 Bc5 Rg2 Nf2 Rb8 Nh1 Rge2 Bf2 R2e4 Bh4 Re3+
R5Rb/RbR1r3/pprb1R2/R1r1kn2/4r3/2bNq3/1b3Q1K/q1N1N2n b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 h5 a4 hxg4 b5 b6 a5 bxa5 b6 a4 b7 d5 Ba3 Be6 Bc5 Bc8 Bb6 cxb6 c4 Qd6 c5 Qg6 Bg2 Qg5 Be4 Qf6 Bd3 Qd8 Bc4 dxc4 Kf1 Kd7 Kg2 Ke6 e4 g5 h4 f5 d4 f3+ Kg3 c3 h5 f2 c6 f1R d5+ Ke5 d6 f4+ Kg2 g3 h6 a3 c7 g4 d7 a6 h7 c2 Qf3 c1R Qb3 a2 Nd2 Nh6 Ne2 Nc6 b8N Qg5 d8R Nf5 Rh6 Bb7 c8R Rc5 Rb1 a1B Nd4 Nb4 Rc1 Bc3 Rh3 Re1 Qc2 Nd3 N2b3 Ra7 Qf2 Bd6 Rd7 Re3 Rf1 f3+ Kg1 g2 Rcc7 Rc8 h8R Re1 Rg8 Qe3 Kh2 g1B+ Kh1 g3 Rh5 Bh2 Nc1 Re2 Nc2 Re1 Qg2 f2 Qf3 Re2 Ne1 Rc6 Rdh7 Ba3 Kg2 Bab2 Kh3 g2 Nd7+ Kd6 Rf7 g1B Nc5 Ke5 Rf6 Bf4 Rhh7 Bgh2 Rfg1 Bh6 R1g5 Bg7 Kg2 Bh8 Rhf7 Kd4 e5 Bf4 e6 Bd6 e7 Ke5 Kh2 f1Q+ Qg2 Nf2 Qg1 Nh1+ Qf2 Rd2 Rfg7 Rd4 Rh5 Re4 Rgf7 Qc4 e8R+ Qe6 Ref8 Qa2 Rfg7 Qa1 Rhg5 Re8 Rh7 Re7 Ra8 Bc8 Rhf7 Rb7 Rh7 Rb8 Rca7 Bb7 Rhf7 Rbc8 Rh5 Ree8 Rc7 Re7 N5d3+ Kd5+ Kg1 Rcc4 Rh4 R4e6 Rd7 R4c5 Ra4 R8c6 Ra5 Re4 Rc7 Kd4 Kg2 Kd5 Nf4+ Kd4 Kh2 Ke5 Nfd3+
2nNr1N1/p7/2r3Q1/b3N1KR/1rR1Rrb1/1pbR4/4b1bR/b1q1kn1R b - - 0 1 legal: proof: h4 c5 b4 e5 c4 g5 a4 gxh4 f4 exf4 e3 b5 Ba3 bxa4 b5 d5 Bb4 cxb4 c5 Nc6 Bd3 Nb8 Bc4 dxc4 Kf2 Kd7 Kf3 Ke6 Kg4 Ke5+ Kh5 Ke4 g4 Kd3 c6 f5 b6 b3 b7 f3 e4 f4 g5 c3 e5 a3 c7 h3 g6 a2 g7 c2 e6 c1B e7 h2 e8R f2 Na3 f1R Re1 f3 Nb1 f2 Re2 Nd7 b8R Ndf6+ Kg5 h5 Re7 h4 Rb5 h3 Na3 Nd5 Qf3+ Ne3 Qf6 Rh6 Nc2 Bb2 Rb8 Bg4 c8R Qc7 Qf7 Bc3 Qf3 Rc6 Re4 Bfb4 Qf5 Ba5 Nf3 Ke2 d4 Ne7 Ne5 Kd2 Rh8 Nc8 Rc1 a1B Rb5 Rb8 Rc5 Rb4 g8N Re1 d5 f1R d6 Rf4 d7 Nf1 Nd4 Re2 Rg1 h1B d8R h2 Qg6 Bhf3 Rh1 Re1 Rc4 Be2 Rc2+ Kd1 Rg1 h1B Rh5 Bg2 Rgh1 Qd6 Ne6 Qd2 Nd3 Qc1 Ne5+ Bd3 Rf2 Re3 Rd6 Ke1 Nd8 Bde2 Rd3 Bg2f3 Rfh2 Bg2 Red4 Ree4 Nd7 Re7 Re4 Re8 Ne5
2n1b1Q1/rb2r2B/n1N2K1Q/1rn4Q/1p3R2/Q3pk1N/2p3b1/N2N2br b - - 0 1 legal: proof: f4 b5 a4 g5 g4 f5 e4 fxe4 b4 a5 c4 d5 f5 dxc4 Ra3 h6 Rf3 Qd5 Rf4 axb4 Na3 b3 Nb1 b4 Bb2 Qb5 axb5 Bg7 Bf6 gxf4 g5 Bf8 g6 Ra3 Bh4 Ra8 Bg5 hxg5 Ke2 Kd7 h4 Kd6 d4 Kd5 g7 c5 h5 e5 b6 c3 f6 c4 b7 f3+ Ke3 f2 f7 c2 h6 c1N h7 g4 Qe2 b2 Bh3 f1B Rh2 c3 Qa6 g3 Bf5 g2 Qd3 Na6 b8N Ne7 g8Q Nb3 Nd7 Ra7 Rh4 Nbc5 Nh3 g1R Rg4 Bb7 Bg6 c2 Qa3 Rh1 Bf5 Bg2 Nc3+ Kc6 Nd1 Kd5 Bg6 b1B Bf5 Ba2 Bg6 Nd3 Nc5 Nc8 Nb3 Bc5 Na1 Bb6 Bf5 Ndc5 Bg6 Bc4 Bf5 Bb5 f8Q+ Ne6 Qh6 Be8 Qgg6 Rg8 h8Q Nec5 Qgh5 Rg5 Bh7 Rf5 Ke2 e3 Qg8+ Ne6 Kd3 e2 Ke3 e1R+ Kd3 Kd6 d5 e4+ Kc4 Ke5 d6 Bg1 d7 Nec5 d8N Re3 Rg6 Rg5 Nc6+ Kf5 Kd4 Re1+ Nhf2 Kf4 Rg7 Re3 Nh3+ Kg3 Q5g6 Kf3 Q6f7+ Rf5 Rg4 Na4 Qfg6 Rb5 Qgh5 N4c5 Ke5 Rc3 Kf6 e3 Qc4 Rd3 Qe6 Rd7 Qg8 Re7 Rf4#
2Q3r1/1rQ1Nrkb/2N3nn/KRnb1r2/B3Q3/N1N1q1bb/b1p5/q2Q4 b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 e5 a4 exf4 Kf2 d5 Bb2 dxc4 Ke1 h6 Be5 f3 Bf4 Ra6 Ra3 Ra8 Rd3 Bc5 Rd5 gxf4 g5 Be7 g6 Bf8 Rg5 hxg5 h4 b5 d4 c5 Kd2 f5 e4 g4 d5 g3 a5 g2 e5 b3 Kc3 b4+ Kd2 b2 e6 c3+ Kc2 b3+ Kd3 f2 Kc4 c2 Kb5 c1Q e7 c4 h5 c3 h6 f3 g7 Kf7 e8N f4 a6 Bb7 a7 Qg5 h7 Nd7 Ka5 Bd6 Nd2 b1B Qc2 b2 Nc4 Rb8 a8Q Ba2 Rh5 b1B Rh4 Nc5 Nd2 Nh6 Qb3 Rg8 h8Q Bh7 Nc7 Qa1 Bb5 f1R Ne2 g1N Nd4 f2 Nc4 f3 Ba4 Qe3 Na3 Bg3 d6+ Bd5 d7 Rb7 d8Q Nh3 Rh5 Nf4 Nc6 Ng6 Ncb5 c2 Qc3 Rg1 Qc4 f1R Nc3 f2 Qd4 Rg2 Qd1 Rh2 Rg5 Rh5 Qc7+ Kf6 Re5 Rf5 Qac8 Rh1 Qe8 f1B Qa8 Bh3 Qac8 Rd8 Qe8 Rd7 g8N+ Kg7 Qe6 Rdf7 Nge7 Rhf1 Qed6 Rf8 Qde6 R5f7 Rh5 R1f5 Qe4 Rg8 Rh4 Rb2 Qed3 Rh5 Rb4 Rhf5 Qe4 Rb1 Rd4 Rb6 Rb4 Rb7 Rb5
rQ1b1r2/1b2bQ1K/1Q2r3/Br1nr1B1/2p2k2/pp4nR/1Q1q1q2/N4B1B b - - 0 1 legal: proof: b4 a5 h4 d5 f4 g5 a4 gxh4 c4 dxc4 Na3 e5 Nc2 exf4 b5 b6 Nb4 axb4 a5 Be6 a6 Bc8 Ra5 bxa5 Kf2 Kd7 Kf3 Ke6 Kg4 Ke5+ Kh5 f5 e4 c5 g4 a4 b6 a3 d3 c3 g5 c4 b7 b3 g6 f3 a7 c2 g7 f4 Qe2 f2 Rh3 f3 Bh6 c1B Qc2 Nd7 Be3 Nb6 Bd2 Nd5 Ne2 Be7 Nc3 Ngf6+ Kh6 Rf8 g8B Nh5 Na2 Ng3 b8Q+ Qd6+ Kg7 h5 Ba5 Bb7 d4+ Kf4 e5 Rf5 e6 Re5 Qe2 Qb4 Qd8 Qd2 Qb6 Bd8 e7 Re6 Bg2 f1R e8Q f2 Nb4 Re1 Bh1 f1Q Kh7 Qf2 Nc2 Bb2 Na1 Be7 Qd1 R1e5 Qb1 Bc3 Bg2 Bcb4 Bf7 Bd8 Qb2 Bc5 Bf1 Bce7 Rh2 h3 Qg8 Rb8 a8Q h4 Qf8 Rc8 Qb8 Rc5 Rh1 h2 Qg8 h3 Bg6 Rf6 Be4 Rf8 Qgg6 Rb5 Qe8 Nc7 d5 Re6 d6 Nd5 d7+ Re5 Rg1 h1R Bf3 h2 Qf7+ Nf5 Rg3 Rg1 Qb1 h1R+ Rh3 Rg6 Qb2 Re6 Be4 Rg1 Bh1 Rgg8 Qg7 Bc7 d8B Ng3 Qg6 Bh4 Bf6 Bd8 Bg7 Bhe7 Bf6 Re8 Qf7 Rgf8 Qa8 Bc7 Qaa7 Ra8 Qb8 Bcd8 Bg5+
1Q3R1N/2Nqn1Q1/2np2rp/1rpBp1bq/7k/1n6/b3Q1QN/2NK1nq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 e5 d6 e6 fxe6 c5 e5 Bc4 e4 Ba6 Bg4 Bf1 Bc8 a4 Nd7 d4 Nh6 d5 Kf7 Be3 Nb8 c6 Ng8 Bc5 Ra6 Ra3 Ra8 Rd3 dxc5 d6 Na6 d7 Nb8 Rd6 cxd6 f4 Kg6 g4 e5 f5+ Kg5 c7 b5 a5 h3 f6 e3 f7 e2 a6 h6 a7 h2 Bg2 b3 Na3 b2 Bc6 b1N Nc2 b4 Na1 b3 Bd5 b2 Nb3 Kh4 g5 Ne7 g6 Rg8 g7 Nbc6 Nc1 Rb8 a8N Rb5 Qc2 Ba6 c8Q Nd2 Nc7 b1N Qb8 Nf1 Qb2 Qc8 d8N Nbd2 Qc2 Nb3 Nf3+ Kg3 Qc4 Qd7 Rg1+ Kh3 Qd3 h1Q Nh2+ Qf3 Rg6 Kh4 Rf6 Qh5 Rf5 Rh8 g8Q Bb7 Qg6 Rg8 Qg2 Rg6 Rf6 Bg7 f8Q Bh8 Rf7 Bf6 Qg7 Bg5 Rf8 Ba6 Nf7 Bc8 Nh8 Ba6 Kf2 e1Q+ Kg1 Qed1 Kf2 Q1g4 Ke1 Bc8 Qa2 Qg1 Qde2 Na1 Bf3 Qh3 Qec2 Be6 Kd1 Qf5 Qab2 Ba2 Qg2 Qd7 Qbe2 Nb3 Bd5
3n1q1B/2pb4/2Bnq2B/RB1p1k2/B1B1n1rQ/p5Q1/1rn1r3/1RK1b3 b - - 0 1 legal: proof: b4 g5 h4 e5 hxg5 b5 f4 exf4 c4 Bd6 a4 bxa4 c5 Bf8 c6 dxc6 d4 Qd5 Nf3 Bd7 Nfd2 Qe6 d5 Qe7 d6 Bc8 Nc3 Qd8 Nd5 cxd5 Nb3 axb3 Kd2 Kd7 g4 Ke6 e4 a5 d7 h5 g6 f5 b5 b2 e5 b1R b6 f3 b7 a4 g5 h4 g7 h3 g6 f2 Be2 f1N+ Kc2 h2 Bg4 Nh6 g8B+ Nf7 g7 Ng3 Qf3 Ne4 Bh7 Nfd6 Qg3 Rg8 Be2 f4 Bc4 f3 Bh6 Rb2+ Kc1 Nc6 b8Q f2 Qb4 f1N Qbe1 Qf6 d8B Ne3 Rg1 Qf7 Bf6 h1Q Bg6 Qd7 Be8 Kf5 e6 Qf3 e7 Qe6 Rb1 Nd8 Beb5 Ra5 e8B Nc2 Bec6 Bd7 Qh4 Be7 Qeg3 Re8 g8B a3 Bf7 Ra4 Bh8 Bf6 Rd1 Bc3 Rd4 Be1 Bh5 Rg8 Be8 Rg4 Bf1 Ra6 Ra4 Rb6 Bbc4 R6b3 B4b5 Re3 Bfc4 Re2 Ra6 Qc3 Ba4 Qg7 Ra5 Qf8 B6b5 Bc8 Bec6 Bd7 Bb7 Nf6 Ba8 Nfe4 Bac6
n4n2/2R4Q/5brp/pR6/p1NNn3/1p1bp1NK/N1r2Rn1/Rb4kN b - - 0 1 legal: proof: d4 d5 c4 f5 b4 g5 e4 fxe4 h4 gxh4 Bd2 b6 Bd3 Nd7 Bc2 dxc4 Bb3 cxb3 b5 Nb8 a3 Qd6 Ba5 Qb4+ axb4 bxa5 Kf1 Kf7 f4 Ke6 g4 Kd5 Kg2 c5 b6 e5 f5 e3 f6 Ke4 d5 e2 g5 Ke3 b7 e1N+ Kh2 Kf2 g6 h6 g7 e4 f7 c4 b5 e3 b6 a4 d6 a5 d7 h3 d8N c3 Qg4 c2 Qg6 c1N Nc6 Ne2 Nd4 Bf5 Qh7 Nf4 Nge2 Nf6 g8N Bd3 Na3 Ne6 Nc4 Be7 f8R Nc7 Ng3 Nd7 b8R Ng2 b7 Ra6 Rhc1 Na8 Rf7 Bd8 Ne7 Nf8 Nef5 Ne4 Rc3 Bb1 Nh1+ Kf1 Rc7 Bf6 Rc2 Rc6 Re2 Rg8 Rd2 Rg6 Re2 Ng5 Kg3 h2 Rf2+ Kg1 Kg4 Be7 Nfg3 Ne4+ Kh3 Rc5 Nb5 Bf6 Nc3 Rd5 Na2 Rd2 Rd8 Rc2 b8N Bg7 Rdd2 Bf6 Rf5 Nb6 Nc6 Na8 Nf2 h1B Nd4 Ne1 Rg5 Bf3 Rd5 Be2 Rb5 Ng2 Nfh1 Bd3 Rf2
1R2b1K1/NnN1b1N1/2pr4/N1N5/2R1nq2/1qrrnRbB/2Rk3n/1q4r1 b - - 0 1 legal: proof: g4 d5 b4 e5 c4 dxc4 f4 exf4 g5 a5 Na3 axb4 Qc2 f3 Qf5 h6 Bb2 g6 Bf6 gxf5 g6 f4 Bg5 hxg5 Nb1 Ke7 Kf2 Kd7 Ke1 Ke8 Kf2 Ke7 d4 Ke6 a4 Kf5 h4 Ke4 g7 b5 e3 f5 h5 b3 h6 g4 d5 b2 a5 c3 d6 b4 d7 g3+ Ke1 g2 Kf2 c2 h7 c1R a6 c6 a7 b3 Ra3 Rc3 Rh4 Qg5 d8R Bd7 Ne2 Kd3 e4 Be7 e5 Nf6 g8R Na6 e6 Nc5 Nd2 b1Q Nc4 b2 Na5 Kd2 Rb8 Be8 Nc1 Nb7 Nd3 Qh6 Nc5 Ne4+ Kg1 f2+ Kh2 f3 Kh3 f4 Kg4 g1B Kf5 Bh2 Bh3 f1R Rg1 Rg8 h8N f2 Nf7 f3 Nd6 Rg6 Nb5 Bg3 Rg4 Qa2 Rb3 Rb1 Rc1 f1N Rf4 f2 Ke5 Bf8 e7 Ne3 Rb4 f1N Rc4 Nf6 Ke6 Nh2 Rf3 Qb3 Nd3 Qf4 Nc5 Bd7+ Kf7 Ne4+ Bf5 Rh6 e8N Rd6 Ng7 Be7 Kg8 Be8 Bh3 Rdd3 Rd8 Rb8 a8N Ra1 Nac7 b1Q Na7 Rc8 Na8 Rc7 Rc8 Rcd7 Rb8 R7d6 Nc7 Q1b2 Rg1 Re1 Rh1 Qb1 Rg1 Re2 Re1 Rg2 Rc1 Rg1 Rc2+
RKb2q1B/2r1np2/RRq4b/2p3n1/7r/1Bkb3B/2nnnN2/2R2nBB b - - 0 1 legal: proof: g4 g5 b4 h5 c4 d5 f4 gxf4 b5 e5 g5 f3 Nc3 dxc4 Nd5 a6 Nf4 axb5 Qc2 exf4 Qf5 b4 Qg4 hxg4 Kf2 Kd7 h4 Kc6 a4 Kd5 d4 b5 a5 c5 h5 b3 g6 c3 g7 Kc4 e4+ Kb4 d5 b2 d6 b1N e5 c2 e6 Nd2 a6 Ra7 h6 Ne7 g8R Nbc6 d7 Rc7 a7 Kc3 a8B b4 Ra6 b3 Nh3 b2 Rg6 b1Q Rf6 Qe8 d8R Nd4 Bd5 Qeb5 Bb3 Qc6 Bg2 Qa2 Re1 Qaa4 Bh1 Qe8 Rd1 Qac6 Rf1 Bg7 Rg1 Qf8 h7 Bh6 Rd1 Rg8 Rf1 Rg5 Rb6 Rh5 Rg1 Ng8 e7 Rh4 e8B Ne7 Bd7 g3+ Ke1 g2 Kf2 Nf1 Be3 Nd2 Rc1 g1N Re8 Ne6 Ra6 Ne2 Rd8 Ng5 Rd6 Bb7 Rda8 Nd4 Bg4 Bc8 Bge6 Qce8 Rdb6 Qa4 Kg1 f2+ Kg2 f1N Bg1 Qd7 Nf2 Qd6 Bh3 Qg6 Rca1 c1N Rb1 Nce2 Re1 Nc4 Rb1 Nc2 Rc1 Ne6+ Kf3 Qf6 Ke4 f3+ Ng4 f2 Ra4 Ng8 Kd5 Ncd2 R4a6 Ne7+ Kd6 Qf3 Rb1 Ng5 Rba1 Nh2 Rc1 f1B Nf2 Qc6+ Ke5 Ng3 Ba2 Rb7 Bc4 Bd3 Bb3 Qg2 Kd6 Ne2 Bf5 Nhf1 Bh3 Rb8 Kc7 Qe4 Re6 Rb6 Rd6 Rc6+ Kb8 Rc7 Rdb6 Qc6 h8B+
1rk2b2/1p1BBpBK/3n1qB1/1b1R3p/1b4b1/b5Rn/n2BRqr1/1N3R2 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 dxc4 f5 g6 h5 e6 h6 exf5 Qc2 f4 Qb3 Ra6 Qd1 Ra8 g4 Nf6 g5 Be7 Qc2 Ng8 Qf5 Bc5 Qg4 Bf8 Qh5 Bg7 Nc3 Bf8 Nd5 Na6 Ne7 gxh5 g6 Nb8 g7 Qd7 Ng6 hxg6 Kd1 Qd5 Ke1 Qd8 Kf2 Kd7 Kf3 c5 Ke4 f3 d4 f2 a4 g5 Kf5 b3 e4 b2 a5 b1B h7 c3 d5 c4 a6 g4 d6 c2 e5 g3 a7 g2 Bd2 c1B+ Bd3 f1Q+ Nf3 g1N Ra5 c3 Rd5 Ne7+ Kf6 c2 g8R Qf2 Rg3 Na6 Bg6 Rb8 a8R Nh3 Rf1 Nb4 Ra2 Rg8 h8B Ba3 Bg7 c1B Rb2 Qdb6 e6+ Kd8 d7 Bd3 Rc2 Nf5 Rb2 Nd6 e7+ Kc7 e8B Bb5 Ra2 Qa6 Rb2 Na2 Rc2+ Kb6 d8B+ Ka7 Bc6 Bg4 Be7 Bb4 Bd7 Bca3 Rb2 Nf4 Kg5 Nh3+ Kh6 Kb6 Kh7 Kc7 Bdg5 Qc6 Re2 Qc3 Nd2 Qcf6 Be8 Kc8 Nb1 Qa1 Bf4 Qf6 Bd2 Qc3 Bgf6 Ba6 Rgd3 Be6 Be4 Rg2 Rg3 Bb5 Bg6 Bg4 Bg7 Qcf6 Bd7+
1N1Kn2R/prpNQrp1/4Rr1p/2b1b1Rn/R3N2k/2R2b2/1bN5/1n5q b - - 0 1 illegal: No proof kernel
N6R/N3K1b1/1Nq1p3/1NR1Nqrp/Rp4k1/3bn1q1/1rqB2Rp/1nq5 b - - 0 1 legal: proof: e4 e5 b4 g5 h4 gxh4 d4 exd4 b5 c5 e5 c4 Bd3 cxd3 e6 a6 e7 axb5 Qe2 b4 Qe6 fxe6 Kd2 Kf7 Kd1 Qc7 Ke1 Qd8 Kd2 Kf6 e8N+ Kf5 c4 b5 a4 d5 f4 h5 c5 b3 g3 b4 a5 b2 c6 h3 a6 h2 a7 Na6 c7 Nf6 Nc3 b1Q Na4 Nc5 Nd6+ Kg4 f5 Bg7 Nc3 Ba6 c8N Na4 Nf3 Qe8 Nc4 Qc6 Nb5 Nc3 N4b6 Rg8 Ra4 Qb3 Re1 Qa3 Re5 Nb1+ Kd1 d2 Ke2 d3+ Ke3 d1Q Kd4 Qdc2 Bd2 Ne8 f6 Nd6 f7 Nc4 f8R Ne3 Ncd6 Rc8 a8N Rd8 Ndc8 Qcc1 Bc3 d2 Nca7 d1Q+ Bd2 Qdc2 Re8 Qf5 Rf8 Kh3 g4 Q1c2 g5 Kg4 g6 Rc8 Nc3 Bd3 Ncb5 Qac1 Bc3 Qf2 Bd2 Qg3 Rd8 Qd6 Rf8 Rc2 Rd8 Rb2 Rc8 Bh6 g7 Qdc6 Rb8 Re8 g8R+ Bg7 Rh8 Rg8 Rd8 Bf6 Rb8 Rg5 Rbg8 Bg7 Rc8 Qe8 Rc2 Qd7 Kc5 d4 Ne1 Qc8+ Kd6 Qc6+ Ke7 Be4 Rc4 d3 Nf3 Qc2 Rcc5 Qc1 Be1 d2 Red5 d1Q Bd2 Bd3 Ne5+ Kh3 Rd4 Qcc2 Rf4 Qdc1 Rf2 Kh4 Rg2 Kh3 Nf7 Kg4 Ne5+
Q2qQn2/B2r1RK1/1b5r/3b1B2/1r3rBr/1nrkR2R/nRb4B/r4n2 b - - 0 1 illegal: No possible last move
1r3b2/Q4rpn/8/2B1qnnQ/2KR2Br/3Q1b1B/2k1BpQ1/Rbn1q2r b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 g5 e5 g6 hxg6 Bd2 g5 Bc1 g4 e4 f6 Nh3 Na6 f5 Nb8 Nf4 Ra5 Na3 Ra6 Nc4 exf4 e5 Ra7 e6 Ra8 Ne5 fxe5 Ke2 Ke7 Kd3 Kf6 a4 b5 c4 d5 h4 e4+ Ke2 Ke5 c5 f3+ Kd2 f2 f6 g3 e7 g2 e8B g1N h5 b3 c6 e3+ Kd3 b4 f7 b2 a5 b1Q+ Qc2 b3 c7 e2 a6 e1N+ Kd2 b2 a7 d3 Kc3 Ke4 h6 d4+ Kb3 Nf6 h7 Bb7 c8Q Qd6 Be3 Qe5 Ra4 Ne2 Ra1 Nf3 Qe6 Nc6 Qc5 d2 Rh5 Kd3 Qc8 d1R Rh4 Ng5 Qg4 Ne7 Qg2 Nf5 Bd7 Rb8 a8B Bf3+ Bb7 Rd2 Qa7 Qe1 Be6 b1B Re4 Rg8 h8Q Nfh7 Bd7 Rc2 Bb5+ Rc4 Bc8 Nd6 Bg4 Nf5 Qg1 Rb7 Bfh3 Re7 Qg2 Nc1+ Ka3 Kc2 Rf4 d3 Bc5 d2 Rd4 Rc3+ Kb4 d1R Be2 Re3+ Kc4 Re4 Bh5 Rh4 B5g4 Nf6 Qh6 Nfh7 Qh5 Rh8 Rf4 Rd8 Rd4 Rc7 Kb5 Rb8+ Kc4 Bd6 f8Q Rf7 Qe8 Bf8 Qd8 Qf4 Qda5 Qe5 Qa3 Nf6 Qh7 Rh6 Qd3+ Kb2 Qg3 Rh5 Bhf1 Rh1 Qg6 R8h4 Qh5 Nfh7 Bg2 Rg1 B2h3 Rh1 Qda3+ Kc2 Qg2 Rh2 Qe3 Rh1 Qd3+
2q5/Qq2p2n/2ppq2N/1p1r1QR1/1kRN3b/3pQ1n1/1rbK1QR1/2R4q b - - 0 1 legal: proof: c4 f5 b4 g5 d4 c6 e4 fxe4 h4 gxh4 c5 Kf7 b5 Ke8 b6 Nh6 d5 Ng8 Bb5 cxd5 c6 Bh6 c7 Bf8 Bc6 bxc6 b7 d4 Ba3 Na6 Bc5 Nb8 Bb6 axb6 f4 h5 g4 h3 a4 d3 a5 h4 f5 h2 f6 h3 g5 Bg7 g6 Na6 b8R Nc5 a6 Rh5 a7 Rd5 Rb7 Rb8 a8Q e3 Raa7 e2 Qb3 Ne4 Nc3 Ng3 Nb5 d6 f7+ Kd7 f8Q Bf6 g7 Ke6 Qc2 Bh4 Qc1 Nf6 g8R Nh7 Ra4 Ke5 Rf4 Bg4 Nd4 Qc8 Kd2 Bh5 Qa7 Bf3 Ke3 e1Q+ Nge2 Qb4 Re1 h1Q Nf5 h2 Ned4 Bd1 Rg5 Bc2 Qd2 Qb3 Rc1 Qe1+ Qe2 h1Q Nh6+ Qf5 c8Q Qb5 Rd7 Qa6 Rd8 Qb7 Rg6 Qfh3 Qf7 Qe6 Rdg8 Qb4 Qd7 Qc8 Qf2 Qb5 Kd2 Qba6 Rfg4 Qab7 Q7f3 b5 R8g7 Ra8 Qb8 Ra5 Qa7 Ra2 Rf4 Rb2 Rg5+ Nf5 Rg2 Ng3 Rg8 Rc5 Re4+ Kd5 Rg5+ Kc4 Q3e3 Rd5 Rf4 Kb4 Rfg4 Qe4 Qdf5 Qee6 Ne2+ Kb3 Rf4 Qf6 Rc4 Qfe6 Rc3+ Kb4 Nd4 Qed7 Rc5 Qe6 Rc4+
1B6/2KQ2Br/2n1k1p1/1Bn2NQ1/bqr1bB2/r4Q1q/n3b3/Q1r1nQ2 b - - 0 1 legal: proof: d4 d5 b4 c5 e3 cxd4 b5 d3 b6 d2+ Ke2 d4 Kd3 axb6 Ke2 b5 Ba3 b4 Bb2 Ra4 Bc1 Ra8 a4 f5 Ra3 g6 Rc3 d3+ Kf3 Bg7 Kf4 Bd4 exd4 Kf8 Ke3 Ke8 f4 g5 g4 Kf8 h4 Qb6 Rc5 Qc6 Re5 Qc7 Re4 fxe4 f5 Qd7 Kf2 Qd8 Rh3 Ke8 Rf3 Be6 Rf4 Bc8 Na3 gxf4 g5 Qd7 g6 Qe6 g7 Qf7 Nc4 Qd5 Ne5 Qd8 Ng6 hxg6 c4 Kd7 h5 b5 c5 e5 d5 b3 a5 f3 Kg3 b4 f6 f2 h6 e3 h7 b2 f7 b1B f8Q e2 d6 e1R a6 b3 a7 e4 Kf4 b2 Ke5 e3 Qh5 d1R Qff3 d2 Qf7+ Ne7 g8Q e2 Qg5 Be4 Nf3 b1Q Qgg7 Qb4 Nh4 Na6 Qc4 Bcb7 Nf5 Bbc6 Qb5 Qc7 Qc4 Rhc8 h8B Qca5 Qb5 Qaa3 Qd3 Rc7 Qh3 Rac8 Qh1 Ba4 c6+ Ke8 Ke6 Qh3 Qa1 Rd7 Ke5 Kf7 Bf6 Rdc7 d7 Rh8 d8B Rh7 Bg7 Rc8 Bb2 Rc1 Bc7 d1N Bb8 Nc3 c7 Na2 Bc3 Red1 Bd2 e1N Bb5 f1B Bf4 Be2 Qhg2 Rd3 Qf1 Ra3 a8Q B4d3 Qaf3 Be4 Qb2 Rd8 c8Q Nc5 Qc7 Rd4 Qa1 Rdc4 Qc8 Nc6+ Kd6 Nd7+ Kc7 Nc5 Qcd8 Ke6 Qd7+
Nn4N1/bb3q1b/P3k3/B1nBq2r/RK6/n2rpb2/4B1n1/1RRrQ3 b - - 0 1 legal: proof: c4 a5 e4 g5 b4 axb4 h4 gxh4 d4 c5 e5 cxd4 e6 fxe6 Qg4 d6 Qd1 d5 cxd5 exd5 Kd2 Kd7 f4 b5 a4 h5 g4 e5 g5 b3 f5 b2 a5 b4 f6 h3 g6 h4 f7 e4 a6 b3 g7 h2 Bb5+ Ke6 Qe2 d3 Kc3 d2 Bd3 d1N+ Kd2 h3 Bc4 Qd7 Qd3 Bb7 Qf3 Ne3 Kc3 Bc5 f8R Nf6 g8B+ Qf7 Qf1 Nfd7 Ne2 Rh5 Qd1 Ba7 Ra5 Ng2 Kb4 e3 Qc2 Nc5 Na3 b1N Qd1 b2 Nb5 Na3 Qe1 b1B Nec3 Bh7 Be2 d4 Rc8 d3 Nd5 d2 Ra4 d1R Nf6 Rd3 Rg1 h1Q Bd2 Qh2 Bc3 Qe5 Nc7+ Ke7 Rh1 h2 Rf1 h1B Bd2 Qe8 Bd5 Qf7 Rg1 Nh4 Rf1 Bf3 Ng8+ Kd7 Qf2 Ng2 Rb1 Kd6 Qe1 Nbd7 Re8 Rd8 Na8 Nb8 Rf8 Rd7 Rc8 Rd8 Bc6 Ke6 Be4 Ncd7 Rcc1 Nc5 Bd5+ Kd7 Ba2 Rb3+ Ka5 Ke6 Bb4 Rd1 Bd2 Kd7 Bb4 Rbd3 Bd5 Nc2 Kb5 Kd6 Ba5 Na3+ Kb4 Kd7 Bc6+ Ke6 Bd5+
2r1k3/2q5/6pb/QRn1BN2/1rRrn2K/2p3RB/P1qq4/1n1nB1Nb b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g4 c5 d4 cxd4 Qb3 h5 Qf3 hxg4 Qc3 bxc3 Kf2 f5 h4 b5 e4 d3 e5 d2 e6 d1N+ Kg2 b4 h5 g6 d6 b3 h6 f3+ Kg3 f2 h7 b2 e7 f4+ Kh4 f3 Ba6 f1R Rh3 f2 Kg3 Nf6 Bc4 Na6 Bb3 Bb7 Nd2 b1N Nc4 Qc7 Bd2 Bh6 Be1 Ne4+ Kh4 g3 Ne3 g2 Rg3 Rc8 Nf5 Nac5 Be6 Rf8 h8B Bc6 Nf3 g1Q Be5 Qg2 Ng1 Rb8 Bc8 Rb4 d7+ Kf7 Ba6 Rc8 d8Q Rd4 Qd5+ Ke8 Be2 Ba8 Bg4 Qh2+ Bh3 Rb4 Ne2 Rh1 Ng1 f1Q Bh8 Qc2 Be5 Qff2 Qd8+ Kf7 e8R Qfd2 Re6 Rh2 Rc6 Rf2 Qg5 Ke8 Qh5 Rf3 Qg5 Rd3 Qh5 Na3 Rb1 Rdd4 Rb3 Nb1 Qg5 Rbc4 Rb5 Rb4 Qh5 Nd3 Rc4 Ndc5 Bd6 Nf6+ Bf4 Bh1 Qg5 Nfe4 Be5 Kf8 Qd8+ Kf7 Qd5+ Kf8 Qa8 Ke8 Qa5
2kn1NN1/nb2B2p/r2R1RQq/8/5PK1/p5b1/nq1NrR1b/q1q4B b - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 e4 g5 a4 bxa4 e5 gxh4 e6 a3 b5 fxe6 Qd2 e5 Qa5 e4 Qxa7 Nc6 Qb8 Nxb8 Ke2 d5 g4 Kd7 c4 e5 c5 e3 Kf3 e4+ Kf4 d3 b6 e2 f3 e1B g5 d2 g6 d1N g7 d4 b7 e3 Be2 h3 Bd2 d3 Bc3 h2 Bf6 d2 Kf5 Nc6 b8R Na7 Nh3 Nc3 Rb3 d1Q Rb6 Bd6 Nf4 Bb7 c6+ Kc8 c7 Na2 Ne6 Qc1 Nd2 Ne7+ Kg4 Beg3 g8N Nec6 Rd1 h1Q Nf8 Qh6 Be7 Bde5 Bf1 e2 Bg2 e1Q Bh1 Qd5 Rab1 Nd8 Rf6 Qb5 Rb2 Bh2 Rc2 Beg3 f4 Qg1 Nb3 Qe5 Rdd6 Qeb2 Rf2 Qca1 Nd2 Qgc1 Nc4 Nac6 Nd2 Ra6 Rf5 Na7 Rf7 Bd5 Rff6 Bb7 Nd7 Qe5 Bf8 Bd5 Ne7+ Kb7 Rf5 Qeb2 Rff6 Nac6 c8Q+ Ka7 Bg7 Re8 Ng8 Re2 Bf8 Bg2 Qc7+ Ka8 Be7 Na7 Qc2 Kb7 Qe4+ Kc8 Qg6 Bb7 Nf8
2K1R1qb/5n2/2Nqr1Rr/1n1nQ3/r1Pbq2k/1Br5/bR1NBnn1/3N4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kb5 d5 a4 f5 e4 d3 a5 b3 h3 g2 e5 b2 e6 d4 c3 f4 e7 f3 e8N f2 a6 d2 a7 g3 Ra4 d3 Ra3 Rh6 Ra5 Kh4 Qe2 d1N Qf3 g5 Ng7 d2 Rh2 g4 Qd5 Nf6 Qd6 Ne3 Qe6 d1N Be2 f1R Nd2 b1Q+ Qb3 Nfd5 Qb2 Rf3 Rh1 Qe4 Qb3 Nc6 Nc4 Be6 Qa2 Ne5 Qb1 Nf2 Qe1 Qd6 Nd2 Nf7 Ra2 b6 Ka6 b5+ Kb7 b4 Rc2 b3 Rb2 Be7 Qa1 Bf6 Qa5 Re8 a8B Rf4 Qc5 Rc8 Qd4 Rc6 Qe5 Ra6 Ne8 Bh8 Nf6 Ra4 Ng8 Rff6 Ne7 Rf3 Rc2 b2 Nc6 b1N Rb2 Na3 Rh2 Nb5 c4 Bf5 Rh1 Bh7 Kc8 Rff6 Bd1 Re6 Ne2 g1R Nc3 g2 Bb3 Rc1 Rg1 g3 Nd1 Rc3 Bb7 Qg4 Ba8 Bb1 Bb7 Qf5 Ba8 Ba2 Bb7 Kh5 h4 Kg4 h5 Kh4 Ba8 Qe4 Bb7 Rhg6 h6 Rgf6 h7 Rh6 Rf1 g1B Ba8 g2 Bb7 Nfg4 Rf6 Bf2 Ba8 g1Q Rg6 Ng2 Bb7 Bd4 Ba8 Bf6 h8R Nf2 Re8 Bh8 Nd8 Qge1 Bc6 Q1e3 Bd7 Qg3 Nc6 Re7 Bg4 Re6 Be2 Qg5 Rf6 Qg8 Rg6
2bq1bk1/2b1b2n/2b1n2n/q1PN1B2/B2Rn3/3nN1r1/KR1r4/2b1RQ1N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 b5 Kc1 d5 Kb2 g5 a4 f5 h4 Kf7 e4 g2 c4 f4 a5 g3 a6 f3 e5 f2 a7 d3 h5 g4 h6 b3 h7 b4 Na3 d2 Rh6 d4 Qe1 d1B Ne2 g1B Nc3 d3 Kb1 d2 Rb6 g2 Ncb5 b2 Rb7+ Nd7 Nd4 g3 Be2 f1Q Ra2 Qf5+ Bd3 Nh6 Nb3 Bgc5 Qe3 g1B Rb8 g2 Qd4 Be3 Rb5 g1B Ra5 Bf3 Qh4 d1N Qh2 Nf2 Qf4 Bc6 Ra4 Rg8 h8R Bh2 Qf3 Bce7 Nc5 Rg3 Nc2 Nf6 Ne4 Bc1 Ne3 Nh7 e6+ Kg7 Qe2 Qfa5 c5 Rb8 Bc2 Nd3 a8N Rb7 Qe1 Rd7 Nb6 Rd5 Ra1 Rd4 Ka2 b1N Qd1 Na3 Qf1 Nb5 Nf2 Nc7 Nh1 Rd7 Nbd5 b3+ Kb1 b2 Rd4 Rd6 Ba4 Rd7 Ka2 b1N Rf4 Ne1 Rd4 Nd2 Rb1 Nd3 Rb2 Bd6 e7 Ne4 e8B Ne6 Bg6 Bde7 Bf5 Kf7 Rg8 Rd6 Rg4 Rd7 Rh4 Kg8 Nb6 Ndf2 Rd1 Rd2 Nbd5 Nd3 Rf4 Rh3 Rh4 Bc7 Re1 Rg3 Rf4 Nef2 Rc4 Ne4 Rd4
BN4k1/2n2qQ1/Bq1nbB1K/5NnP/b1n3R1/1r1r4/3n3r/n1bNR2r b - - 0 1 illegal: No possible last move
3n4/3Bk1K1/BNqq1N1n/2R1n2q/PR1rn1b1/5bQ1/1R1B4/2rqbrb1 b - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 h4 g5 b5 gxh4 b6 axb6 c5 bxc5 Qc2 c4 Qd1 c3 Kf2 f5 Kf3 b5 g4 h5 a4 d5 e4 c2 g5 h3 g6 b4 e5 b3 e6 d3 e7 d4 g7 b2 Qd2 h4 Ra3 h2 Qd1 d2 Bc4 h3 Rc3 d3 Bb3 Rh4 Ba2 Nh6 g8B Qd6 Rc5 Nc6 Qe2 d1Q Bd2 c1B Rc4 Nd8 Be3 d2 Nc3 b1N Re4 Na3 Bb1 Nc4 Ba7 Ne5+ Kf2 f3 Kg3 f2 Qf3 f1R Rb4 Rd4 Bd3 f4+ Kh4 Bg4 Kg5 Rc8 Qg3 f3 Nge2 f2 Ne4 Rc6 Rg1 h1Q Ba6 h2 Rg2 Bb2 Bd5 Rc1 Nf4 Bc3 Be6 Qc2 Kf6 d1Q Bb6 Be1 Ba5 Qcc6 Nd5 Bg7+ Kg5 Bh8 Bd7+ Kf7 e8R Bg7 Rg8 Bh8 Nb6 Ke7 Rg1 Qhf3 Nf6 h1B Rg2 Qfe2 Rh2 Bhf3 Rb2 Qeb5 Rh4 Qbd5 Bd2 Qf7 Ne4 Qh5+ Kf4 Rd3 Ng5 Bf5 Ba5 Rg1 Nf7 Nc4+ Ne5 f1N Rg5 Nfd2 Bb4 Rf1 Bc3 Qdc5 Ng4 Bd4 Ba5 Be6 Rd5 Ne5 Nf6 Q5d6 Rc5 Bg1 Bb4 Qe8 Kg5 Bf5 Rhc4 B5g4 Bc3 Rd4 Rcb4 Nef7+ Kg6 Ne4 Bd2 Ne5+ Kh7 Qh5 Kg7
2n4b/2rNN1q1/Rq2q3/3BPrNq/3kr2B/Kbpn1R1q/5qB1/1q2Q3 b - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 h4 g5 f4 gxh4 a3 bxa3 Qc2 exf4 Qa4+ Ke7 Qd1 Ke8 g4 Ke7 d4 Kd6 Kd2 Kd5 Kc2 h5 e3 f5 g5 c5 g6 b5 g7 f3 Nh3 f4 Kc3 f2 Rg1 b4+ Kc2 f3 Qe2 c3 Kb3 c4+ Ka2 c2 Ng5 h3 Qd3 h2 Be2 h1Q Re1 f1R Qd2 f2 Qd3 h4 Qh7 h3 Qd3 h2 Qc3 Rh7 Qd2 Qb6 Ne6 Ra4 Rd1 Nc6 Bg4 Ne5 Bh5 Nd3 Ng5 Be6 Ne4 Ne7 g8B Nc8 Qe1 Rc7 Nbd2 Bg7 Nf3 Bh8 Nfg5 c3 Bd2 c1Q Bf3 Qg2 Bf7 Qh3 Bg2 h1Q Nc5+ Kc4 d5 Qh5 d6 Q1h3 e4 Bd5 Bf4 Qce3 d7 b3+ Kb1 b2 d8N Kd4 Bg3 Bb3 Bh4 Qhe6 e5 Q3h3 Ra2 Qeg6 Nce4 Be6 Qe3+ Kc4 Nf6 Qg7 Ra1 a2+ Kc2 Bd5 Qc1 Kc5 Nc6 Re4 Ne7 Kd4 Nd7 Be6 Rb1 a1Q Rd2 Bd5 Qe1 Qa2 Ra1 Qc4 Ra6 Qcc6 Kb1 Bb3 Bd5 Qce6 Ng8 Rg1 Ne7 f1Q Rc2 Qff5 Re2 Rf1 Re3 Qf4 Rg3 Qd2 Re3 Rf5 Rg3 Qf2 Rf3 Ba4 Ka2 b1Q+ Ka3 Bd1 Qf1 Bb3 Qe1
2r1b3/4BB2/Kn1n2q1/1Rqr3n/2n1nQ1b/2N1bp1n/1R1R1NPr/2k4N b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 c4 f5 e3 h5 c5 d5 c6 d3 c7 d4 Ne2 d2 Nbc3+ Kd3 e4 h3 e5 h2 e6 a2 e7 h4 e8N h3 Qb3 d1N Na4+ Nc3+ Kb6 Nh6 Qb2 Qe7 Qb4 Kc2 Qa3 d3 Nd6 d2 Nc4 d1R Bd2 Bd7 c8R Nf7 Be3 Bh6 Na5 Be8 Rb1 a1B Nb2 Nd7+ Kc7 b5 Kb7 b4 Ba7 b3 Rd8 Rc8 Be3 Nb6+ Rd7 Qc5 Nbc4 b2 Re7 Nd6+ Ka7 Rd4 Rd1 b1Q Re4 Bg5 Rg1 h1N Nb3 h2 Nbd2 Nf2 Ka6 h1N Qb4 Ng3 Rh1 Rh2 Nb2 Nh5 Nd3 Nh3 Ng3 Bh4 Rg1 Bb2 Nh1 Ba3 Be2 Bc1 Bg4 Rd5 Bd4 f3 Re2 f2 Bf6 f1N Be7 f4 Ne4+ Bd2 Be6 f3 Bf7 Ne3 Ndf2 Na8 Qd4 Nec4 Qe3 Nab6 Qf4 Kb2 Rge1 Qc2 Rf1 Bc1 Rd3 Be3 Rb1+ Ka2 Rb5 Ka3 Ra5+ Kb2 Rb5+ Kc1 Rd4 Qd3 Reb2 Qc2 Rd2 Qb1 Nd1 Qd3 Nef2 Qg6 Ng3 Nce4 Ngh1 Qg4 Nc3 Qg7 Bg8 Qg6 Bf7
1nN1RrRR/PQ5K/8/qb4rN/3bn3/3nn1p1/1n3rn1/Nk1nBBr1 b - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 g4 h5 b5 hxg4 b6 axb6 c5 bxc5 Ba3 c4 Bc1 c3 Kf2 Ke7 e4 Kd6 a4 Ke5 h4 b5 a5 g5 a6 f5 a7 d5 h5 c2 h6 b4 h7 b3 Be3 c1N Bd3 g3+ Kf3 g4+ Kg2 f3+ Kf1 b2 Be2 d3 Ra3 d4 Rc3 f4 Na3 b1R Bd2 g2+ Kf2 g3+ Ke1 Rb5 Bf1 Bd7 Rc2 Nf6 Rc7 Bc5 Rc8 Rf8 h8N Qa5 Qc2 f2+ Kd1 f3 Be1 d2 Qb1 Nd3 Kc2 d1N Rh7 N1b2 Nh3 g1R Nf4 Rf7 Bh3 f1N Nh5 f2 Rg7 Bb6 Rgg8 Rd5 Bg2 Bb5 Bh3 Rd8 Bg2 Rdf8 Bh3 Rg7 Bg2 Rg5 Ng6+ Ke6 e5 Kf5 e6 Ne4 e7 Ne3+ Kb3 f1N e8R Rf6 Ne7+ Ke5 Bh3 Rf2 Nc2 Ng2 Na1 Nfe3 Rh8 Bc5 Reg8 Bb6 Rce8 Bc5 Nf6 Kf4 Nh5+ Kf3 Nc8 Ke2 Qc1 Bb6 Qc7 Kd1 Qf7 Kc1 Qb7 Ngf4 Bf1 Kb1 Nd6 Nfg2 Nc8 Nb4 Rh7 d3 Rhh8 Nc5+ Kc3 d2 Kd4 d1N Nf6 N4d3 Nh5 Nf5+ Kd5 Ne4 Ke6 Bd4 Kf7 Nfe3+ Nf6 Rgf5 Kg7 Rg5+ Kh7 Nc6 Nd6 Rd8 Nc8 Nb8 Re5 Re8 Nh5 Ref8 Re8
q1nRKN1b/1r4rB/q3b1rN/4k3/1R1pn3/4R1bb/BB1P3r/q1nQ4 b - - 0 1 legal: proof: h4 e5 f4 exf4 a4 a5 b4 axb4 h5 b5 h6 bxa4 c3 bxc3 Nh3 gxh6 Ng1 h5 Qb3 h4 Qc2 Ra7 Qd1 Ra8 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kh5 d5 g4 c5 e4 h3 g5 c2 e5 c4 g6 h2 g7 f3 Be2 f2 Qe1 f1Q Qf2 c3 Bg4 a3 Qe2 a2 Qc4 Nc6 Bb2 c1R Ne2 c2 Qb5 Na7 Bc3 Bd6 Qc6 Nf6+ Kg5 h5 Kg6 h4 g8R h3 Rf8 Rh6+ Kg7 Rb8 Rg8 Ne4 Ng3 Qa6 Na3 Rg1 Bb2 c1N Rb1 a1B Nc2 Rb7+ Qc7 Rg2 Re1 h1R Re3 h2 Bh5 f4 Bg6 f3 Nf5 f2 Rf8 Ng5 Bh7 f1B Kg8 Rf6 Nh6 Ne4+ Qg7 Qda5 Rd8 Rg5 Qg6 Bh3 Qg7 Bd7 Qg6 Nc8 Nd4+ Ke7 e6 Bg3 Qg7+ Kd6 e7 Ke5 e8B Bde6+ Bf7 Qa8 Kf8 Q5a6 Qh8 Rg7 Ke8 Rfg6 Qf8 Rf1 Qa3 h1Q Qb3 Rf2 Qd1 Qe1 Bc3 Rh2 Rb4 Qg1 Bb2 Qgf1 Ba3 Bc3 Bb2 Qa1 Nb3 Qfa6 Nc5 Kf4 Nd7 Be5 Rbb3 d4 Nf8 Bf6 Rb4 Ke5 Bfg8 Rgc7 Rc3 Bh8 Re3 Rcg7 Bf7 Beg4 Bd5 Be6 Ba2
n4R1q/Kb5N/PpbkQ1N1/1brB2B1/nR2b3/NnbBn1r1/8/1bq5 b - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 h4 g5 b5 gxh4 b6 axb6 c5 bxc5 Qc2 c4 Qd1 c3 Kf2 Ke7 e4 f5 a4 h5 g4 d5 e5 h3 g5 h2 e6 d3 g6 d4 g7 f3 a5 b6 a6 h4 Ra4 h3 Ra5 c2 Bg5+ Kd6 e7 c1N e8B f4 Ra3 d2 Rb3 d3 Rc3 Bb7 Qe2 d1N+ Ke1 f2+ Kd2 f3 Qe3 Ne7 g8N Bg7 Nf6 Nd7 Bh5 Rg8 Rc8 Nc5 Nd7 Nd5 Nc3 Na4 Qe4 Nc7 Qh7 Ne3 Bg2 f1B Qf5 f2 Bd5 Be2 Be8 f1B Nb1 Bh5 Nf6 Bg6 Nh7 Nb3+ Ke1 d2+ Kf2 d1Q Nf3 Bd4 Ne5 Qc1 Bb5 Bc3 Bd3 Qe8 Rg1 h1B Na3 h2 Rg4 Be4 Rh4 h1B Qe6+ Kc5 Rd8 Rc8 Rg4 Bgf5 Ng6 Na8 Kg3 Rg7 Kf4 Qh8 Rf8 Rcc7 Bb5 Bb1 Bd3 Bfe4 Rh4 Bd2 Ke5 Rg8+ Qf6 Bc3+ Ke6 Rc6+ Kd7 Be2 Kd8 Bhf3 Qf5 Kd6 Rf4 Rc4 Qg4 Bc6 Kc8 Rc5 Kb8 Bh1 Ka7 Bb7 Bc2 Bb5 Bd3 Rg7 Bg8 Bec6 Bd5 Be4 Qe2 Rf7 Rh4 Rf3 Rhf4 Rg3 Qa2 Bh1 Rb4 Be4 Qe2 Qd1 Qg4 Qc1 Qe6+
3N4/BR1K1k1q/4Q1Rq/b1B2b1P/1bR2rB1/N3nq2/pr4nn/n1q4b b - - 0 1 illegal: No possible last move
6b1/3nR3/B1q3n1/1Pqk1Q1b/Nrqr3r/3Brp2/4BR1q/N2bbK1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 e4 Ke7 c4 Kd6 h4 a5 b4 f5 h5 g5 h6 g2 h7 f4 b5 d3 Ra3 g3 Qd2 g4 Ra2 a3 Be2 a4 Qc3 d2+ Kd1 Qf6 Ra1 a2 Qb3 a3 Qc3 Ne7 Rh2 Ng6 Nf3 g1R+ Ne1 g2 Qb2 g3 Qc2 Ra4 Rh6 Rb4 e5+ Kc5 e6 d5 e7 d4 e8B Be6 Qb3 Bg8 Bd3 Nd7 Ke2 Qc6 Nc2 Rd1 Qb2 g1Q Nc3 g2 Qb1 Qh2 Na4+ Kd6 c5+ Kd5 Rh4 Be7 Rh3 Bh4 Rf3 Be1 Rf2 g1Q Bf7+ Ke5 Be8 Qg5 Kf1 Kd5 Be2 d3 Bf7+ Qe6 c6 Qe7 c7 Qc5 Be8 Qec6 c8B Qc4 Qc1 Q4c5 Rb1 a1Q Ba6 Qad4 Na1 a2 Qc2 Qdc4 Rb3 Rb1 Rb2 d1B Rb3 d2 Re3 R1b2 Re7 R2b3 Qb1 Re3 Qf5+ Kd6 Bd3 Bh5 Be2 d1B Bf7 Q4d4 Bfc4 f3 Bcd3 Qdc4 Nb6 Bd5 Na4 Rd8 h8N Bg8 Nb3 a1R Nf7+ Kc7 Ne5 Kd6 Ng4 Rc1 Qf8 Kd5 Na1 Rc3 Rg2 Re4 Nf2 Rh4 Nh1 Rcb3 Rf2 Ra3 Bc2 Rd3 Qf4 Rd4 Bcd3 Re8 Rf7 Re5 Re7 Re3 Qf5+
1R1N1bB1/1b3nbr/5Q2/6N1/2b1B1Rk/Npb1Pq2/3qqrpK/3n1Rr1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 h4 Ke7 c4 Kf6 a4 d5 c5 g5 a5 b5 a6 g2 Kf2 d3 Kg3 b3 a7 b4 c6 d2 c7 b2 h5 b3 h6 d4 h7 d3 Ra6+ Nc6 Ra4 Nb4 Rh3 Na2 Rd4 Nc3 Rc4 Nh6 Nf3 g1B Qe1 d1Q Na3 b1R Rh1 d2 Ne5 Bb7 c8B Bd4 Kh2 g3+ Kh3 g4+ Kh4 g2 Kg3 Kg5 Rh4 g1B Nd3 f5 Qf2 Nf7 Bg2 Bdg7 Qb6 B1d4 e3 f4+ Kh2 f3 Ne1 f2 Rh3 f1B Be6 Qf3 Rg3 Nd1 Rc1 Bc3 Qa6 Rb8 a8R Kh4 Bd5 Rc8 Rb8 Bc4 Be4 Rc5 Qf6+ Rg5 Bf1 Rb2 Bfd3 Qd4 Bd5 Ra2 B3e4 Qd3 Nec2 Qdf1 Nb4 Rc2 Nc6 Q1e2+ Rg2 Ra2 Nd8 g3+ Kh1 Nb2 Rf1 d1Q Kg1 Qdd2 Kh1 Rg8 h8N Nd1 Kg1 Nh6 Nhf7 Rh8 Be6 Rh7 B6d5 Kh3 Be6+ Rg4 Ng5+ Kh4 Bg8 Nf7 Rgf2 g2 Kh2 Rf4 Qe5 Ra1 Qf6 Qh5 Rf3 Qg4 Rg3 Rf2 Bd5 Qgf3 Be4 Nb2 Rc1 Rb1 Rc2 Rd1 Rc1 Rg1 Rf1 Nd1 Rg4+
N1b1R2n/r1B5/3nR2B/1b1K1p2/B1Pnnq1b/1R6/2QNkp2/2q1nrr1 b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 Ke7 e4 Kd6 c4 Kc5 h4 g5 h5 d5 h6 f5 e5 b5 e6 f3 e7 d3 Ke3 g3 e8R g2 h7 a2 Rh5 g4 Ne2 g1Q+ Kf4 f2 Ke5 d2 Rh2 b4 Ng3 d4 Nh1 b3 Bh3 g3 Bf1 d3 Qe2 d1N Rg2 b2 Na3 b1N Rh2 d2 Rh3 g2 Bb2 Ne7 Rb3 Ra7 Re3 Nbc6+ Kf6 Qd4+ Kf7 Nbc3 Rf3 Ne4 Rf4 Ndc3 Qd3 d1B Be2 Ba4 Rf3 Bb5 Re1 a1N Bd1 Nc2 Ng3 Qf1 Rfe3 g1R Bc1 Bh6 R1e2 Ne1 Ba4 Bg5 Qc2 Bh4 Rd3 Qe5 Bh6 Qf4 Rf3 Rg8 h8B Nd4 Be5 Ng6+ Bc7 Rh1 Re6 Qg1 Nf1 Kb4 Rf6 Nh8+ Ke7 Rg5 Re6 Nd6 Nd2 Nce4 Rb3+ Kc5 Nab1 Qf1 Nc3 Qg1 Nd5 Rg8+ Rf6 Qgg5 Nb6 Rf1 Na8 Rg6 Nb1 Qc1 Nd2 Qf4 Kf8 Rgg1 Re6 Nc6 Re8 Kd4 Ree3 Ng5 R3e6 Nge4 Rb1 Ke3 Rb2 Bg3 Rb3+ Ke2 Kg7 Nd4 Kf8 Bb7 Ke7 Bh4+ Rf6 Ndf3 Ke6 Bc8+ Kd5 Nd4 Rfe6
2r1B1N1/k6b/pnb1q1rR/1nQR1P1p/1Rb2q1n/1q1N3K/2bB4/b3N3 b - - 0 1 legal: proof: d4 f5 a4 c5 a5 cxd4 a6 bxa6 Nf3 a5 Ng1 a4 h4 g5 e4 gxh4 b3 axb3 Qf3 fxe4 Qe2 Qb6 Qd1 Qd8 c4 e5 g4 d5 f4 Kd7 Kf2 Kc7 Kg2 Kb7 c5 h5 g5 e3 g6 e2 g7 e1N+ Kh2 h3 Kg3 e4 Qd2 e3 Nf3 a6 c6+ Ka7 c7 d3 Qc2 d4 Qc3 b2 Nh2 e2 Qc4 d2 Qa2 d1Q Bd2 d3 Nc3 b1B Na4 Nf3 Bb4 e1Q+ Qf2+ Nd4 Bd2 Qd6 Ra3 Qb3 Nc5 Nh6 g8N Be6 c8R Nb5 Ng4 h2 Rc6 Bc4 Rg1 h1B Bg2 Bg7 Rb6 Nf5+ Kh2 Nh4 Ne3 Rh6 Ra5 Nd7 Bc6 Rc8 Ng2 Ba1 Kh3 Rg6 Qd4 Qe8 Ne1 Qee6+ Rg4 Bc2 f5 Qf4 Be3 d2 Ncd3 d1B Bd2 Bhd5 Qc5 B1f3 Rb8+ Nb6 Be8 Qc7 Rd4 Qf4 Ra4 Bc6 Rd8 Bfd5 Rb4 Qee4 Rd6 Bf7 Rd5 Qe6 Nf6 Bg8 Rb7+ Ka8 Rh7 Kb8 Rh8 Ka7 Rh6 Bh7 Ng8
1q1rrr2/b2q1R2/B1n4N/1p1Qpr2/1B1B2K1/2P2N1R/n2N1rp1/3b1qk1 b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 g4 h5 e4 fxe4 a3 bxa3 Kd2 hxg4 Ke2 Nf6 Ke1 Ng8 h4 Kf7 Ke2 Ke6 f4 Kf5 h5 d5 c3 g5 h6 b5 h7 e5 Rh4 g3 Rh1 Kg4 f5 a2 f6 e3 f7 d3+ Ke1+ e2 Qd2 g2 Kf2 e1R Qe3 d2 Bb2 d1R Rh3 d4 Ba3 d3 Bc5 d2 Nf3 g1R Bd6 Nc6 Nh4 Nf6 Nf3 Nd5 Be2 Rgf1+ Kg2 Ndb4 Bc4 Re2+ Qf2 Be6 Bd3 Bb3 Ng1 Qb8 Bc7 Bc5 f8B Ba7 Bfd6 Re8 Nf3 Kf4 h8N g4 Bf5 g3 Bc8 Bc2 Rh6 Ke4 Kh3 g2 Qg3 Ke3 Qg8 Kf2 Kg4 Rf8 Ba6 Ba4 Ng5 Kg1 Nhf7 Rf5 Bb6+ Ref2 Rh3 Re8 Bbc5 Rf1 Bd4 d1Q+ Rf3 Qd3 Nh6 Bd1 Nd2 Rd8 Rb1 a1Q Qd5 Na2 Bb4 Rff8 Kh4 Qf5 Rh3 Qd7 Rc1 Bg4 Re1 Bd1 Re4 Qb1 Rf4 Qd3 Rf7 Qc4 Re3 Rf5 Rh3+ R1f2 Kg3 Qf1 Kh4 Rde8 Kg3 Qbb7 Kh4 Rad8 Kg3 Qb8 Kh4 Bb3 Kg4 Bd1+ Ngf3+
BQ1B1Rn1/1R1Kn2q/6PR/3Np1pN/2b1bp2/3k2rr/4n2r/bqn2B2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e3 dxe3 b5 g5 b6 axb6 Qf3 b5 Qd1 b4 g4 h6 f4 Ra7 Qd5 gxf4 g5 Ra6 g6 Ra8 Qg5 hxg5 Ke2 f5 Kd3 d5 Kd4 Kd7 Ke5 Kc6 h4 Kc5 c4 b5 a4 e2 h5 e1N h6 b3 a5 b4 a6 f3 h7 f4 a7 b2 Rh6 b3 Bd3 d4 Bc2 d3 Ne2 f2 Nd4 f1N Be3 d2 Rh4 d1R Ra2 Be6 Rg4 Rd2 Nc3 b1B Rh4 b2 Rh6 Qd7 Nd5 Rh2 Bd3 Ng3 Bf1 Ne2 Ra3 Bbf5 Rb3 b1Q Rb7 Be4 Bd2 Bf7 Ba5 e6 Bd8 Bg7+ Nf6 Rh3 Nb5 Kb4 c5 Kc4 c6 Kd3 Nc3 Rg3 Rb3 Qb7 c7 Nc6+ Kd6 Nce7 Nh5 Bd4 c8Q e5 Qh3 Bc4 Nd5+ Bc3 Rb5 Ba1 Qc8 Rb8 a8B Qa7 Rb2 Rb3 Qb7 Kd4 Qb4 Nf5+ Kc6 Rg2 Ng7 Nd3 Rh2 Ndc1 Qb8 Rbg3 Rh5 Qf7 Rb7 Nfe7+ Kd7 Kd3 Ne8 Nh6 Nef6 Rh2 Rh3 Rg8 h8R Qg7 Rh7 Rh8 Rh4 Qg8 Rf7 Qg7 Rf8 Nhg8 Rg4 R8h3 Rh4 Qf7 Rh6 Qh7 Nh5
K5N1/4n3/BR1pPQNn/1bq1nb2/1B4Rb/rr2R1qp/2p1kq1B/n7 b - - 0 1 legal: proof: c4 a5 f4 g5 d4 e5 b4 axb4 h4 exf4 d5 gxh4 c5 d6 Qd2 dxc5 d6 c4 d7+ Ke7 Qd6+ cxd6 Kd2 Ke6 a4 Kf5 g4+ Ke4 a5 b5 a6 f5 a7 h5 e3 f3 g5 c3+ Kc2 f2 Kb3 h3 g6 h2 g7 f4 Ra3 f3 Be2 f1B Ra1 h4 Na3 h3 Bb2 f2 Nb1 c2 Ra2 Qa5 d8B Be7 Bd1 Kd3 e4 Nd7 e5 Nh6 g8R Bh4 Ne2 Ke3 Rhg1 h1N R1g4 Ng3 Nd2 Ngf5 Nf4 Ne7 Be2 Qc7 Rf8 Qc5 Re8 Rf8 Ng6 Rf3 Bd3 Be2 Bb6 f1Q Ra6 Qf2 Bc3 Rb8 a8Q Rg3 Kb2 b3 Ne4 b4 Nf6 Rf3 Ng8 Qg3 Be4 Bb5 Bb7 Ke2 Ba5 Rd3 Rb6 Re3 Ba6 Rb7 Ka1 b2+ Ka2 b1N Kb3 Rb8 Qd5 Ra8 Qd4 Nd2+ Kb2 b3 Bab4 Ra7 Ka3 b2 Qf4 b1Q Qf6 Nb3 Bb2 Bd3 Ka4 Qbe1 Bd4 Rf3 Bg1 Na1 Bh2 Bb5+ Ka5 Rb3 e6 Qef2 Rf8 Bb7 Rc8 Ne5 Rcc6 Qcd4 Rc3 Be4 Rd3 Bf5 Re3+ Kf1 Rb7 Qc4 Kb6 Qd5 Kc7 Qc6+ Kb8 Qc5 Rc3 Ke1 Rb6 Ke2 Re3+ Kf1 Bb7 Ra4 Ba6 Raa3 Rd3 Ke2 Ka8 Nc4 Rf3 Ne5 Re3+
4nn2/pqp5/Bq1k2Bb/6nB/rPr4N/3R2pb/2Q3rp/1NbNKR2 b - - 0 1 legal: proof: h4 b5 g4 d5 a4 bxa4 f4 e5 c4 exf4 b3 dxc4 Bb2 g5 Bd4 gxh4 Bf2 Qd4 Bg3 fxg3 Ra3 Qd7 Ra1 Qd8 e4 Kd7 d4 h5 e5 f5 d5 a3 d6 f4 b4 c3 g5 a2 g6 c2 g7 c1B Ne2 f3 Qd2 h3 Qd5 h2 Qd4 f2+ Kd1 h4 Qb6 h3 Qd4 Qf6 Qb2 Rh4 Qc3 Rc4 e6+ Kc6 d7 Kd6 d8N Nd7 Rg1 h1Q e7 h2 e8B Qb7 Nc6 Qg6 Ne7 Ngf6 g8B Bfh6 Rg2 Nf8 Qc2 Bh3 Bh7 Rd8 Nec3 Rd7 Bd3 f1N Ke1 Nd2 Nd1 Nde4 Rd2 Ng5 Bf7 Ne8 Nf5+ Ke5 Bf1 Qgb6 Bh5 Rf7 Nh4 Rf2 B7g6 Rg2 Re2+ Kd6 Re3 Rg4 Ba6 Rf4 Nbc3 Rc4 Rb1 a1R Rf3 Ra4 Rd3+ Ke6 Ra1 Ke5 Nb1 Ke6 Rf3 Ke5 Rf1 Kd5 Ra3 Kd6 Rd3+
1n2r2n/1bK1RRqB/2P2pb1/5Q2/1pBN4/1b2rN2/Nb2p1kp/1r2R1q1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 e4 gxh4 f4 e5 b5 exf4 Be3 dxe3 b6 axb6 Bd3 b5 Bf1 b4 Ke2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 h5 c4 d5 g4 h3 a4 f6 c5 h4 g5 h2 g6 d4 g7 b3 c6 h3 a5 f3 a6 Kf4 a7 Kg3 e5 d3 e6 d2 e7 f2 e8N b2 Ra6 e2 Na3 b1B Nd6 Bg6 Bg2 f1R Bd5 Qc7 Rb6 Ne7 Bc4 Kg2 Qb1 d1B g8B Bb3 Qf5 Rb1 Nf3 Rh6 Rd1 h1Q Bh7 h2 Re1 Qg1 Nc2 Rh3 Ncd4 Bh6 Ra6 Bc1 Ne4 Bb2 Nc3 b6 Na2 Bb7 Ne5 Re3 Nef3 Nd7 Ra3 Re8 a8R Nb8 R3a7 Qg3 Kb4 b5 Ka5 b4 Kb6 Qg5 Kc7 Qh6 Ra3 Qg7 R8a7 Bf7 R3a5 Ng6 Re5 Nh8 Re7 Bg6 Ra5 Qh6 Rd5 Qg7 Rdd7 Qf2 Rf7 Qg1 Rde7
1k2b1nn/4B1rn/ppn3pN/1qprrN2/5BK1/R3b3/4NP2/R2QRq2 b - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 d5 b4 dxc4 b5 h5 Ba3 hxg4 Bb2 Kf7 Bc1 Ke8 a4 Be6 a5 Qd5 b6 axb6 a6 Qd8 a7 Bc8 Bd3 Bf5 Bc2 Bd7 Ba4 Bc6 Bb5 Bd7 Ba6 bxa6 Ke2 Be6 Ke1 Bc8 Ke2 Kd7 d4 c5 h4 Kc7 d5 e5 h5 c3 h6 e3 h7 e4 Qa4 c2 Nc3 g3 Qd4 g2 Qd2 g6 Rb1 Bd7 Rh2 Be8 Rh1 Bh6 Na2 Nc6 Qd1 Qd7 Qe1 Rd8 Nf3 g1Q a8R Bg5 Ra7+ Kb8 d6 Bf4 Bd2 c1N+ Kd1 Qf1 Rh3 Bh6 Nh4 Nd3 Ra1 Nde5 Nc1 Nf7 Ne2 Bf4 Nf5 Bg5 Nf4 Bh6 Bc1 e2+ Kd2 Bg5 Qd1 e1N Rha3 Nf3+ Ke3 Bh6 Rc7 N3g5 Ra7 Qc8 Ne2 Qd7 Kf4 e3 Ned4 e2 Kg4 e1R Bf4 Re5 Ne2 Nb4 Rc7 Qb5 Re7 Nc6 Re6 Rd7 Re7 Rd5 Ree3 Re7 d7+ Ree5 d8B Nf6+ Kg3 Rg8 h8N Rg7 Be7 Ng8 Kg4 Nh7 Re4 Nd6 Nf7 Bg5 Bg3 Be3 N7h6 Nf7 Bf4 Nh8 Nc1 Bd4 Re1 Be3 Ne2
2Rb1Br1/bnq4p/n2bP2K/nb1p4/2pB1rp1/2RRN1k1/2Bq1N1Q/8 b - - 0 1 legal: proof: c4 f5 g4 fxg4 d4 e5 h4 exd4 b4 Qxh4 b5 Qh2 b6 axb6 c5 bxc5 Nh3 c4 Ng1 c3 a4 Kf7 f4 Kf6 e4 g5 e5+ Kf5 a5 d5 a6 c5 a7 b5 e6 g3 Ne2 Kg4 f5 b4 f6 g2 Kf2 g1B+ Ke1 c2 Kd2 c4 f7 b3 Na3 b2 Bg2 b1N+ Ke1 d3 Nc3+ Kg3 Qe2 g4 Na2 Ne7 Be4 Bd7 Be3 c1B Bd4 Rg8 Nb4 Nc3 Nac2 Nb5 Ne3 Nd6 Ra3 Nb7 Rc3 d2+ Kd1 Bb2 Bc2 Bb5 Nd3 Nec6 Nf2 Bd6 f8B Na6 Rd3 Re8 a8R Nca5 Rc8 Re7 Rc3 Rf7 Rd3 Qh4 Rc3 Qd8 Rd3 Qc7 Rh3+ Kf4 Qe1 Bba3 Ke2 Bac5 Qf1 Ba7 Qg2 Bh2 Qh1 Bg3 Rc3 Bh4 Rg3 Bd8 Qh2 Qb6 Ned1 Qc7 Rgd3+ Kg5 Ne3 Rf4 Kf1 d1Q+ Kg2 Qe2 Kg3 Qd2 Bb6 Kf6 Kh4 Ke5+ Kh5 Ba4 Nh3 Bb5 Kh6 Ke4 Nf2+ Kf3 Qh5 Kg3 Bd4 Rf5 Qh1 Rf4 Qh2+
Q1BR2Kn/2p5/2n2r1k/1q6/p4Nnb/pBrR1bp1/pR3BqP/3N2r1 b - - 0 1 illegal: No proof kernel
1KRr2bB/1n3N2/knr1q3/4p1p1/R1NB1b2/p1Q1p3/p2R2P1/1B1q1nn1 b - - 0 1 legal: proof: h4 c5 a4 f5 d4 cxd4 e4 fxe4 c3 dxc3 h5 b5 h6 bxa4 Qe2 Qc7 Qd1 Qd6 Ba6 Qxh6 Bf1 Qh2 Ke2 Kd8 Ke3 Kc7 Kd4 Kb6 Kd5 e5 f4 h5 b4 a5 b5 c2 f5 e3 f6 h4 f7 h3 Na3 Na6 Qd2 Nc5 Qf2 Ra6 Rb1 Nf6+ Kc4 d5+ Kc3 d4+ Kc4 d3 Qg3 d2 Qh4 d1Q Rb2 Nfd7 Bd3 Nb7 Kd5 g6 Ke6 Bh6 f8B Bf4 Bg7 Rd8 Qe1 Ka7+ Kd5 Rc6 Nc4 a3 b6+ Ka6 Bh8 a2 Qc3 a4 Nf3 a3 Ng5 Qg3 Rf1 h2 Nf7 h1N Rb4 g5 Bb2 c1N Rf2 Qh2 Rd2 Qh6 Bb1 Ng3 Ba1 Nce2 Ra4+ Kb5 Bb2 Ng1 Ba1 Nf1 Bb2 Na5 b7 Ka6 b8R Bb7 Rc8 Nb6+ Ke4 Rc5+ Kf5 Qh3+ Kf6 Bd5 Ke7 Be6 Qb3 Rc6 Bd4 Bf5 Qb2 Bh7 Qc3 Bg8 Rc7 Rb8 Rc8 Qe6+ Kd8 Rd6+ Kc7 Ra8 Rb4 Nb7 Re8 Rad8 Rf8 R8d7+ Kb8 Rc6 Rc8 Rd8 Ra4+
1R3n1K/2N1kQ2/5n1p/B1b1p3/q1qN2q1/1r1Pn3/3q1B2/2RR2Qb b - - 0 1 legal: proof: a4 b5 axb5 d5 Ra4 d4 Ra1 d3 cxd3 f5 h4 g5 e3 gxh4 e4 fxe4 b4 c5 b6 cxb4 Be2 axb6 Bg4 b5 Bf5 Ra3 Be6 Rc3 Ba2 b3 dxc3 bxa2 Kd2 e5 Ke3 h6 f4 h3 g4 b4 f5 h2 f6 b3 f7+ Kd7 g5 b2 g6 Qe8 c4 Ke7 c5 Nc6 g7 Qd7 Bd2 Nd4 c6 Bb7 c7 Nf6 g8Q Qg4 c8R Ne6 Na3 b1Q Rb8 Qb5 Rc1 a1N Nf3 Qc4 Nd4 Bd5 Rg1 h1Q Nab5 Qhh4 Ba5 Ba8 Nc7 Nc2+ Kd2 Qa4 Rh1 Bb7 Qg1 e3+ Kc3 e2 Rd1 Qa1+ Kc4 e1Q Qh7 Bg2 Qf5 Qd2 Qh7 Ne4 Kd5 Qa4 Qg6 Kd7 Qg8 Bc5 f8B Bf3 Be7 Nf8 Qf7 Rg8 Rc1 Rg6 Rd1 Rb6 Rc1 Rb3 Bg5+ Be7 Be3 Bg2 Bf2 Bf3 Qh2 Bg2 Rhd1 Bh1 Qff4 Bc5 Qg1 Ke7 Qf5 Ne1 Qg6 Ng2 Qf5 Ng3 Qf4 Nh5 Ke4 Qg8 Kf5 Nf6 Qf3 Qgc4 Qb7 Ne6 Kg6 Nf8+ Kg7 Ne3 Kh8 Qh5 Qd5 Qg4 Qf7+
3R1b1r/2p4q/2qp3Q/1p1N2nP/nB1N3Q/2r5/2RbnN2/K1kBb3 b - - 0 1 legal: proof: e4 f5 exf5 a5 b4 axb4 g4 h5 a3 bxa3 Qe2 hxg4 Qf3 Nf6 Qd1 Ng8 d4 d5 c4 dxc4 f3 Bd7 d5 Bc6 d6 Be4 fxe4 exd6 Kd2 Kd7 Kc3 Kc6 h4 Kc5 e5 g5 e6 b5 h5 a2 Kb2 Kb4 e7 c3+ Kc2 g3 e8N g2 f6 g4 f7 g3 Bc4 Nh6 Be2 Qd7 Qe1 Qc6 Rh3 Nd7 Rh2 Ra3 Nf6 Nc5 Qf2 Na4 Nh3 g1N Qf1 g2 Bd1 Ne2 Qf2 g1Q Bd2 Qg7 Nd5+ Kc4 Qe1 Rb3 Nf2 Qh7+ Nd3 Kd4 Na3 Ke4 Rf2 Kd4 Rc1 a1B Rg2 Bb2 Kb1 c2+ Ka2 Rc3 Rg8 Ke4 Qh4+ Kf3 Nf2 Ba1 Rb1 c1B Nc2 Bab2 Be1 Bd2 Rc1 Ba3 Ka1 Bb4 Nf6 Ba5 Nd4+ Ke3 Rc2 Be7 f8Q Nf7 Nh1 Ng5 Qh6 Bb4 Rd8 Bf8 Nd5+ Kd3 Bg3 Ba5 Bf4 Be1 Bc1 Bd2 Ba3 Be1 Rc1 Kd2 Nf2 Bb4 Rb1 Ba5 Rb2+ Kc1 Bc5 Rd3 Ra2 Bad2 Bb4 Rc3 Rc2+
1b1N1bnr/r5nP/3rrQ2/3R1Q1b/k2K1b2/R3rp2/6NB/2qB1b1B b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 g4 exf4 c4 h5 b4 hxg4 b6 axb6 c5 bxc5 b5 c4 Bb2 c3 Ba3 Qg5 Bc1 Qd8 Kf2 f5 e4 g5 h4 d5 h5 Kd7 b6 Kc6 h6 d3 e5 Kb5 h7 f3 Ke3 d4+ Kf2 g3+ Ke1 g2 Kf2 g4 b7 f4 e6 g3+ Ke1 c2 Kd2 f2 e7 f3 e8B+ Nd7 Ba3 Ka4 b8Q Qc7 Rh2 Ra7 Nh3 g1B Qb6 g2 Nf4 Qc4 Rh1 Bh2 Ne6 g1R Nd8 Rg6 Bg2 f1B Qf6 Bb8 Rh5 Qc7 Qf5 Re6 Bh1 Qc5 Bf7 Ndf6 Rg5 Ne8 Nc3+ Ka5 Qe2 Ng7 Nd1 Ka4 Rb1 Qc4 Qee5 c1B+ Ke1 d2+ Kf2 d3 Ke3 Bd7 Bd6 Be8 Rb3 Qc3 Ke4 Qa1 Ne3 d1R Rh5 d2 Ng2 Re1+ Kd5 Qb2 Qef6 R1e3 Bh2 Qb1 Kd4 d1R+ Qd3 Bd2 Rd5 Qc1 Bg6 Bf7 Qdf5 Be8 Qf4 Bf7 Bc2 Bh5 Q4e5 Rd6 Qff5 Rde1 Qef6 Ree6 Bd1 Bf4 Bc2 R1e2 Bd1 R2e3 Ra3+
1BN5/3bbq2/2p1b1bQ/2NR4/PkB3bR/r2qQ1r1/1r3nBK/3br3 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 e4 g5 d3 Nc6 h3 Nce7 h4 Nd5 exd5 cxd3 Qc2 gxh4 Qb3 Be7 Qd1 Bf8 Kf2 Ke7 g4 Kd6 Kg2 Kc5 a3 f5 g5 h5 g6 b5 d6 b3 g7 h3+ Kh2 h4 d7 b4 Bg2 b2 Qb3 f3 Qa2 c6 Qb3 f4 Bd2 f2 Bc3 f1B Qa4 f3 Qb3 d2 Qe6 d1B Qb3 f2 Qf7 b3 Qf4 Nh6 g8B Bfe2 Qg4 f1Q Bf7 Be7 Bh5 Rg8 Bg7 Qf7 Qg3 Bg4 Nd2 b1R Qf3 b2 Nc4 Be6 Bh8 Rg3 Ne2 Kb5 Nc1 Ng4+ Kg1 Ra7 Qe3 Nf2 Nb3 Ka4 Be2 h2+ Kf1 h3 Nd6 Ra8 Bc4 Ra6 Be5 Ra7 Rg1 h1R Nc5+ Ka5 Qh6 h2 Qe3 Rb7 a4 Kb4 Ra3 Ra1 Rd3 b1B Rd5 Ra3 Qh6 Bg6 Bf4 Qb6 d8Q Bcd7 Nc8 Qb5 Bb8 Bdg4 Qdh8 Qa6 Qe5 Rb5 Ba2 Rb7+ Qe2 Qd3 Bc4 Rb5 Ke1 Rb6 Rf1 Rg1 Qee3 h1B Bh3 Bhf3 Bg2 Rh1 Rg1 Bd1 Rf1 Ka5 Rg1 Rhh3 Rh1 Rb2 Rh2 Kb4 Rh1 Qc3+ Kf1 Qd3+ Kg1 Rh5 Rh4 Re5 Kh2 Re4 Qef4 Re1 Qe3
5r2/1n2PRr1/1p1BpQ1b/2N1r1b1/4rk1b/3qqN2/n1Bn2RK/1B2Q3 b - - 0 1 illegal: No possible last move, all moves rejected
QnQ2N2/4rpP1/2nq1Bb1/8/K3k1pR/n4Br1/qN2q1p1/1NbrR3 b - - 0 1 illegal: No possible last move
2B3R1/N2n2r1/3r1k2/pn1n1p1N/K1Qb1n2/1BPR1n2/2Q1bp2/2qr2Q1 b - - 0 1 legal: proof: h4 g5 d4 gxh4 f4 c5 a4 cxd4 a5 e5 b4 exf4 a6 Bxb4+ Bd2 Bf8 axb7 a5 Bb4 Bg7 Bf8 Bxf8 Kd2 Ke7 e4 h5 g4 d5 g5 f5 e5 d3 Kc3 f3 Kb3 d2 g6 f2 e6 d4 g7 d3 Rh2 h3 Bg2 h4 Bd5 Ra6 Ne2 Kf6 e7 Qc7 e8B Nd7 b8Q Rh7 Bg6 Ne7 g8Q Rg7 Ra4 Rd6 Ra1 Ba6 Qc1 d1N Qa7 d2 Nf4 Nc3 Ra3 d1R Rg2 h2 Bb7 h1N Qc4 h3 Ne2 h2 Bc8 Ned5 Bf7 Nb5 Nbc3 Ng3 Ka4 h1N Qac5 Ne4 Ng3 Ng5 Rg1 Nf3 Qa1 Nbd4 Nb5 Be7 Rc3 Bd8 Na7 Nb5 Be6 Qc6 Qb1 Bb6 Rd3 Qc7 Qc6 Bd4 Rg2 Rd2 Qg1 Rd1 Nf1 Ng3 c3 Nh5 Ng3 Qb6 Qa2 Qc7 Qc2 Nhf4 Qc4 Qb6 Rh2 Qd8 Rh8 Qe8 Bf7 Qe3 Rg8 Qc1 Qb4 Ndc7 Bb3 Ncd5 Qc4 Kf7 Qb4 Na3 Re3 Be2 Qc4 Nb5 Rd3 Kf6 Nh5+
1q2R1N1/2pB2rn/4bQb1/K1Rqp2r/Rn1p2N1/7Q/1b2P3/3Bn1kn b - - 0 1 legal: proof: g4 b5 a4 g5 axb5 h5 f4 gxf4 g5 Nf6 c3 Ng8 Qc2 Bb7 Qf5 Ba6 Qg4 Bc8 b4 hxg4 d4 a5 c4 axb4 c5 d6 Bb2 dxc5 d5 Ra2 Be5 Ra8 Bd4 cxd4 Kd2 Kd7 h4 Kd6 b6 Ke5 h5 Ke4 g6 e5 d6 f5 b7 b3 h6 f3 h7 g3 g7 f2 d7 f4 Rh6 f3 Ra7 g2 Rh2 b2 Kc2 Ke3 Kb3 Nf6 Ka4 Nc6 b8R Nb4 Nh3 g1N Bg2 f1Q g8B f2 Bb3 Nf3 Nc3 b1B Ka5 Ne1 Rh1 Bg6 Bc6 Qg2 Bd1 f1N Ne4 Ng3 Nhf2 Bd6 Rg1 Nh1 Bb5 Qg8 d8Q Be6 Bd7 Qe8 Qe7 Qd8 Rb5 Qb8 Rc5 Rg8 h8Q Rg7 Qef8 Nh7 Nf6 Qd5 Ng8 Be7 Ne4 Bg5 Nef6 Kf2 Rg3 Kf1 Ng4+ Bf4 Rh3 Kg1 Qf6 Bc1 Ra3 Bb2 Ra4 Qbb7 Ra6 Re8 Ra8 Qb8 Qf3 Rf8 Qa3 Rf5 Qh3 Qf8 Re8 Rh5 Re7 Qb8 Re8 Rf7 Qg7 Re7 Qf8 Rg7 Qf6
7B/r1pqb1r1/1R6/1q1kppqP/R3q3/R1K1n1rQ/bn3N2/BN2Q3 b - - 0 1 legal: proof: c4 a5 g4 d5 b4 dxc4 a3 h5 a4 b5 axb5 axb4 Ra3 hxg4 Ra4 Rh7 Ra1 Rh8 f4 e6 e4 Ra6 e5 Ra8 f5 exf5 e6 Rh5 e7 Rh7 Bg2 Kd7 Bd5 Rh8 Be6+ fxe6 e8R Kd6 h4 g5 d4 c3 b6 g3 b7 g2 d5 e5 h5 g4 Nd2 b3 Re7 c2 Qf3 b2 Qg3 b1Q Qf3 g3 Ra3 Qd7 Nf1 Nh6 Kd2 Ra7 Qc3 Rh7 Qa1 Ng4 Kc3 Ne3 Nh3 g1Q Bb2 g2 Nd2 Rg7 Nf2 Qge1 Rh4 g1R Rha4 Nc6 b8Q R1g3 Qb3 Nb4 Re6+ Kc5 d6 Be7 Rh6 Nd3 Rg6 Qe2 Rf6 Qh1 Qe1 Qe4 Ba1 Nb2 Nb1 Qeb5 Rg6 Bb7 Rf6 Bd5 Rh6 Qe8 d7 Bg8 d8B Qed7 Rd6 Bc4 Rb6 Kd5 Qb4 Ba2 Qh1 Bd6 Bf6 Be7 Qh3 Nd3 Qb2 c1Q+ Qc2 Qg1 Qe2 Nb2 Qef1 Rf3 Qe1 Qg5 Qhh1 Rg3 Qh3 Rh7 Bh8 Rf7 Qh4 Rg7 Qh3
3r1n2/1np1R2P/K4NBp/p1b1Qq2/n6q/5n1N/2RB2qn/1N1Qr2k b - - 0 1 legal: proof: f4 b5 c4 d5 a4 dxc4 f5 bxa4 f6 exf6 b3 f5 Ba3 f4 Bb2 Nd7 Bc1 Nb8 g4 h6 g5 Bf5 h4 Bh7 g6 axb3 gxh7 g5 Ra3 gxh4 Ra5 Kd7 Ra1 Ke8 d4 Kd7 Kd2 Kc6 Kc3 Kd5 e3 Ke4 d5 f5 d6 a5 d7 f3 Qe2 b2 Ra4 f2 Rh3 f4 Qd1 f3 Qe2 Bc5 Rh1 h3 Rh2 Nf6 Ra3 Re8 Rh1 h2 Ra4 Na6 Na3 b1N+ Kb2 Nd2 Bh3 f1N Kc3 f2 Qd1 Nf3 Bg4 Qe7 d8Q Nd7 Qe1 Qh4 Nb1 Nf8 Qdd1 Rad8 Nh3 Re6 Rg1 h1Q Bd2 Qg2 Ra2 N1h2 Rc2 f1Q Bh5 Qff2 Qee2 Re7 Re1 Qff1 Kb2 c3+ Kb3 Qff2 Kc4 Re5 Rb2 c2 Kb5 c1N Rc2 Nd3 Be8 Nb2 Bg6+ Kd5 e4+ Kd4 Kc6 Na4 Kb7 Ree8 e5 Qff1 Qb5 Qd3 e6 Qf5 Rg1 Ke4 e7 Bb6 Qb2 N6c5+ Kc6 Ba7 Kb5 Nb7+ Ka6 Bc5 Qa1 Rd3 Rf1 Re3 Qh8 Rd8 e8N Re1 Rf2 Ng1 Re2+ Kf3 Re5+ Kg3 Nf6 Ngf3 Ng5 Kf2 Re7 Kg1 Nh3+ Kh1 Ng4 Rf1 Qe5 Re1 Nf6
1n5Q/2qb2nB/QbB1P3/pN3Rp1/rNK3b1/b2n4/2k1p3/2qqR2Q b - - 0 1 legal: proof: g4 b5 a4 bxa4 e4 h5 d4 hxg4 d5 a3 d6 cxd6 e5 dxe5 Bc4 e4 Bf1 e3 f4 e5 b3 a5 Ne2 e4 Bb2 axb2 Ng1 Rh5 Ke2 Re5 fxe5 Ra6 Ke1 Rh6 Ne2 Rh3 Ng1 Rh8 Ke2 Ke7 h4 Ke6 c4 Kf5 c5 d5 b4 g5 b5 d4 c6 g3 e6 d3+ Ke1 g2 b6 d2+ Ke2 Bd7 b7 Nh6 c7 Ba3 c8B Qc7 Nf3 g1B Nc3 b1Q h5 Qc1 Qc2 f6 Ne5 d1B+ Ke1 e2 Nd3 Rd8 Nb5 Bb6 Nb4 Kf4 Rh2 Ke3 Qc6 f5 Rf2 f4 Rb1 Nf5 h6 f3 h7 Ng7 h8Q Rf8 Qh1 Rf4 Bh3 Rh4 Bf5 Rf4 Bh7 Rh4 Na2 Kd3 Qd6+ Kc2 Rf1 Nc6 b8Q Rg4 Qa8 Nb8 Bb7 Rh4 Qd4 Rg4 Kf2 e1N Bc6 Rh4 Qa6 Nd3+ Kg1 e3 Nb4+ Kd2 Re1 f2+ Kf1 Bg4 Rb3 Qd1 Rc3 Qc1 Rc5 Qd1 Rf5 Kc1 Qe5 Kb1 Kg2 f1Q+ Kg3 Qf4+ Kg2 Qc4 Kf1 Qc3 Qf6 Qcc1 Qd8 Kb2 Qh8 e2+ Kg2 Bh3+ Kf3 Bg4+ Ke4 Kb1 Na2 Kc2 Kd5 Bh5 Rf3 Ra4 Rf5 Bb4 Kc4 Bf3 Rf8 Bg4 Rf5 Ba3+ Nb4+
1r4b1/2q1r1pk/3BP1R1/q1QR1KN1/brb2p2/b3pQ1N/Q2n4/5B1q b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 f4 e5 a3 bxa3 e3 Nc6 Qd2 e4 Qd1 Ne5 fxe5 dxe3 Ke2 f5 c4 Kf7 h4 Kg6 h5+ Kh7 h6 b5 c5 d5 c6 d4 c7 g3 Ra2 d3+ Ke1 d2+ Ke2 b4 Nh3 b3 Rh2 g2 Qc2 g1Q Nc3 d1B+ Ke1 b2 Qa4 b1B Nf4 e2 Rf2 Rb8 Rg2 Bd3 Kd2 e1R Rg6 Rb4 Nh3 Be6 c8Q f4 Qc5 Nf6 Rc2 a2 Ba3 a1Q Qac6 Bg8 e6 Qc7 Rb2 Rb8 Rb5 Qh1 Q6d5 Bd6 Qa2 Ba4 Ra5 Ba6 Rb5 e3+ Kd3 Rb1 Ne4 Rb2 Kd4 Bf8 Ra5 Bc4 Bb4 Qb7 Ke5 Qc7+ Kf5 Bd6 Ba3 R2b4 Rb5 Re8 Ra5 Re7 Rb5 Bf7 Ra5 Rhb8 Neg5+ Kg8 Rb5 Ne4 Ra5 Nd2 h7+ Kf8 h8Q+ Bg8 Qh5 Qe5+ Kg4 Qed5 Rb5 Qa8 Kf5 Qaa5 Qd1 Be5 Qe1 Rb3 Qd4 Bd6 Rc5 Bf7 Qe5 Kg8 Qe2 Kh8 Qf3 Bg8 Qd4 R3b7 Rd5 Bc5 Bb2 Ba3 Qc5 Rb6 Be5 Rb4 Ne4 Kh7 Bd6 Qc6 Qd4 Qb7 Qc5 Qbc7 Neg5+
Nn1B1kq1/1b1p3q/3n1KBb/q2Q4/4p1QR/n1r1R2p/P5Np/4R1r1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 gxh4 d4 c5 d5 b3 Nd2 b2 Nb3 b1Q Be3 b5 Ke2 bxc4 Qd4 cxd4 d6 Qc1 Rb1 c3 Rb2 Qa1 Rd2 Qc7 Rc2 Qxd6 Rh2 Qc7 Rh1 Qd8 Kd3 h5 Ke4 e5 f4 d3 g4 d2 g5 d1N f6 h3 Kf5 h4 f7+ Ke7 g6 h2 g7 h3 Nd4 Nf2 Re2 c2 Ne6 c1Q Nf3 Ra7 Nc7 Qc5 Nh4 Qd5 Na8 Nd1 Bb6 Nc3 Ng2 Rc7 Re3 Bb7 Bd3 Nb5 Rhe1 Nf6 g8Q Qb1 Qg4 Bh6 f8R Na3 Rg8 Rh7 Rh8 Q8g8 Bc2 Rc3 Bd8+ Ke8 Bd3 Rg7 Be4 Bg5 Rh4 Bh6 Bc2 Ne4 Bd3 Nd6+ Kf6 Ndc4 Bg6+ Kf8 f5 Nd6 Bh7 Qdb5 Qa4 Be4 Nf4 Rg1 Ng2 Qgd5 Kg6 Bf3 Qb4 Ke8 Qg4 Qbd1 f6 Qa5 Qd4 Q5b3 Qg4 Bb7 f7+ Kf8 Qa4 Qdb1+ Kf6 Qc4 Bf5 Qg4 Bd3 Qg8 Qg4 Qc2 Bb5 Qe4 Bd3 Qeh7 Bf5 e4 Bg6 Ndb5 Ke5 Kg7 f8Q+ Kh8 Qd6 Kg7 Qc5 Nd6 Qd5 Kf8 Kf6
K3NBQ1/3bbR2/4n1Pn/b6N/2B2nb1/1Rrn2R1/rq3bn1/r3Qq1k b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 Kd2 Kf7 g4 Kf6 c4 Kg5 c5 Kf4 c6 h5 g5 e5 f3 Kg3 g6 d5 f4 b5 c7 d3 Kc3 d4+ Kb3 a2 f5 b4 Kc4 e3 Kb5 d2 Kb6 b3 f6 e2 f7 e1B Bc4 Kg2 Be2 e4 Nf3 h3 Bb5 b2 Bd3 e3 Bc2 h4 Nc3 b1N Bf5 d3 Ng1 e2 Nb5 h2 Qa4 d1N Be6 d2 Bc4 h3 Qa6 Nh6 Nd4 Nd7+ Kc6 Qf6+ Ne6 Nbc3 Bb2 Ne3 Ba3 d1B Be7 Ncd5 Bd8 Nc5 Qa3 Bf2 Bb3 e1B Rb1 a1R Ne2 Qb2 Ng3 Ba5 Qb4 Nf4 Qe1 Bg4 Bc4 Be7 Ng7 Nce6 f8R Ra2 Rf1 h1Q Rf7 h2 N3h5 Qg1 Ne8 h1N Qb4 Bd7+ Kb7 Kh2 c8Q Neg2 Rfe1 Qf1 Re3 Ra6 Rg3 Rc6 Ka8 Ra1 Ba2 Rc3 Bc4 Rf8 Rh7 Rf5 Rf7 Rd5 Bb6 Rd2 Bc5 Qa3 Qb6 Bg5 Bf8 Bc5 Bd6 Rda2 Nef6 Nf2 Qg8 N2d3 Ne8 Kh1 Bf8 Bf2 Qe3 Be7 Rb3 Qb2 Qe1
R3Rr2/3K1n1n/4Q3/nrNB1qb1/n1Nr3R/P2n2b1/Bqq2qbk/4Q3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kf4 c4 g5 e4 f5 h4 b5 h5 g2 a3 Kg3 h6 b3 e5 d3 e6 f4 e7 d2 Kd6 f3 h7 f2 c5 b2 c6 b4 c7 b3 Rh6 Nf6 Rh1 Nc6 Qc2 d1N Nh3 g1N Nf4 Nf3 Ba6 f1Q Ng2 Rb8 Nf4 Bh6 e8R Rf8 h8Q Bb7 c8B Nf2 Qch7 Nd3 Q7g8 Nfe5 Bc4 Qb6 Bf7 Na5+ Ke7 d5 Rd8 d4 Rh2 Nh7 Bce6 Bg2 Be8 Nf7 Nd5 Qf5 Nbc3 b1Q Nc7 b2 N3d5 Qc2 Rd6 b1N Nc3 Qbb2 Na4 Nc3 Ba2 Rb5 Nc5 Na4 Bb3 Qcc3 Rhh1 Qcc2 Rhd1 Kh2 Bc6 g3 Qe5 g4 Re1 Bg5+ Rf6 Bh3 Qe2+ g2 Ba2 g3 Qd1 g1B Na8 g2 Nb6 B1e3 Bcd5 g1Q Nc4 Qgf2 Qg6 Bgf4 Ra6 Bg2 Qe6 Bg3 Kd7 Bg5 Qe2 Nc1 Ra7 d3 Ra8 d2 Qf1 d1R Re4 Rb6 Qe1 Rd4 Re5 Nd3 Rb1 Qa1 Rb4 Qab2 Re4 Rc6 Rbb8 Rb6 Re8 Rb5 Rh4+
2b1Nnb1/R4nPQ/r3n1B1/2q2N1n/2R4k/4q1rr/n1qBQR2/K3bq2 b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kd2 Ke7 e4 Kf6 c4 Kg5 Kc2 b5 g4 f5 e5 d5 e6 h5 e7 d3+ Kb3 b4 Ka2 d4 e8Q d2 c5 h3 c6 d3 c7 h2 Bb2 h4 Qb5 h3 Bg2 f3 Bg7 f2 Qe1 f1R Qf2 d1B Bb7 d2 Qbc5 Nd7 Qd6 f4 Qg3 f3 Bc3 f2 Qe3+ Kh4 g5 Qe8 g6 Ra6 g7 Nh6 Bb2 Nf7 Ne2 Rg1 Qee5 f1Q Bc3 Rg3 Qb5 Qe3 Rg1 h1Q Bc6 h2 Ba8 Qc6 Be5 h1N Nbc3 b3+ Kb1 a2+ Kb2 Qcc5 Qdb6 Bd6 Bf4 Nf8 Be4 Rh6 Rb1 a1N Nd5 Nc2 Bg6 Nd4 Rg2 Nde6 Nd4 Bg4 Qb8 d1Q Ra1 Be2 Ra2 Bc4 Nf6 Be5 Ne8 Bf6 Bb1 Qc2+ Ka1 Bd5 Rf2 Rh5 Ra4 Rh7 Qc4 b2+ Ka2 Bg5 Qbb3 Bf6 Qbd3 Rh6 Qh7 Be5 Nc6 Bc3 Nd4 Be1 Ra5 Qf5 Bd3 b1N Ka1 Nc3 Be4 Qg6 Qe2 Na2 Bc2 Qgd3 Ra4 Qb3 Bg6 Qbc2 Ra5 Rh3 Ra4 Ng3 Ra3 Nh5 Ra5 Bd7 c8R Rg3 Ra4 Bb3 Ra8 Bc8 Ra7 Bd5 Rc4 Rh3 Bd3 Rg6 Be4 Rgg3 Bg6 Qe5 Bc1 Qe3 Bd2 Neg5 Re7 Nd8 Bc3 Bg8 Bd2 Ngf7 Ra7 Nde6 Nf5+
3rr1Q1/r1N1B1nQ/2qn2K1/b1N2p2/6B1/1R1P2kn/1bbq2Rn/N3r1r1 b - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 h4 g5 f4 gxh4 a3 bxa3 Qc2 exf4 Qa4+ Ke7 Qd1 Ke8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 h5 e3 b5 Bh3 c5 Qf1 b4 Qe1 a2 Ke5 f3 e4 c3 Bb2 c4 Bf1 f2 Qe2 b3 Qd3 h3 Qf3 Kh4 g5 c2 g6 c1B g7 c3 Qg2 h2 Bd3 f1N Qe2 c2 Kf4 Bb4 e5 Nc6 e6 Nd4 e7 Ne6+ Kf5 Nf6 e8Q Ba5 g8N Ne4 Qc6 Nd6+ Ke5 Ng7 Qb7 Kg3 Na3 h4 Ne7 h3 Kf6 Re8 Nf3 Bf5 Rb1 a1R Nd4 Qc7 Qa7 Qc6 Ne6 Rad8 Nd5 Be4 Bc3 Bb2 Nc5 c1Q Nc2 Qd1 Kg5 f5 Kg6 Qe1 Ba6 Ra2 Na1 Bc2 d3 Qd2 Nc7 Ra4 Bc4 Ra3 Bd5 Ra4 Bg2 Ra3 Rg1 h1R Nd5 Nh2 Qe6 Ra2 Bf6 Ra3 Rgd1 Rg1 Bf3 Bc1 Re1 b2 Bd4 Bb4 Qa4 Ng4 Qg8 h2 Be3 h1N Bg5 Nhf2 Nc7 Nh2 Be7 Nh3 Re2 Bc3 Qac4 Ra7 Qh7 Bb4 Bg4 Ba5 Nab3 Rd1 Qcg8 Rg1 Ra1 b1R Ra3 Bb2 Na1 Rbc1 Rb3 Rce1 Rg2+
1q3k1Q/QR3n2/b1KbB2r/2Np1rB1/4n1P1/nN1b3N/1R3rbb/4q2n b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kd2 h5 Kd3 f5 Kc4 d5+ Kb5 f3 c4 a2 e4 h3 g4 h4 e5 f2 c5 h2 e6 f4 e7 d3 c6 d2 c7 f3 Qa4 d1Q Qf4 h3 Be3 Na6 Bg2 f1B+ Ne2 f2 Qf5 Rh6 Nd2 Qe1 Qf6 Nc5 Rb1 a1B Rb3 Ne4 Qh8 Ra2 Qh7 Be5 Rg1 h1N Qh8 h2 Kb4 b5 Bg5 Ba6 Nf4 Qb8 c8N Bd3 Nh3 f1R Nb6 Rf5 Nd7 Rb2 Ka5 b4 Nc5 Rc2 Rb2 b3 Bf1 Kf7 Rg2 Bd6 Rb1 b2 Qd4 Be5 e8Q+ Kg7 Ka4 Bd6 Ndb3 Rcf2 Qd7+ Kf8 Qa7 Bf4 Qh8 Bg3 Be2 Bge5 Bd1 Bg3 Bc2 Bge5 Ra1 b1N Ra2 Na3 Rb2 Nhg3 Rg1 h1B Rf1 Bg2 Rh1 Qe3 Rhb1 Nh1 Ka5 Bh2 Ka4 Qc1 Ka5 Qa8 Kb6 Qb8+ Kc6 Qe1 Na1 Neg3 Rb7 Ne4 R1b2 Re6 Bb1 Rh6 Nab3 Bdb5+ Kb6 Rh7 Bf6 R5f3 Bh4 Neg3 Bf5 Bd3 Rc2 Ne4 Bc8 Rf5 Bg5 Rh4 Rb2 Rh5 Qh7 Nh6 Be6 Nf7 Kc6 Rh6 Qh8+
1qr3B1/P1rkr3/4QQ1b/2r3R1/2Q5/nBRq2n1/Npb1n1r1/1bb1K1N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 e4 b5 c4 f5 a4 g5 h4 d5 c5 g2 c6 d3 a5 d2+ Ke2 f4 e5 f3+ Kf2 d4 a6 d3 h5 g3+ Ke3 g4 h6 f2 e6 b3 c7 b2 h7 b4 e7 b3 a7 Bh6+ Ke4 Nd7 Qc2 d1Q Na3 b1B Qc4 b2 Qc3 d2+ Qd3 Ne5 Ne2 g1B Nf4 g2 Ke3 g3 Qd5 Nf6 Nc2 Nc4+ Kd3 Na3 Ne6 Nh5 Nc5 Bf5+ Ne4 Qb8 Qc4 Kd7 Rh3 Rc8 h8Q Bg6 Be2 f1R Qf6 Rf5 Nc3 Bge3 Na2 g1R Kc3 g2 Nd4 Bc2 Nf3 Rc5 Bd3 Bb1 Bc2 Ng3 Bb3 Bgc2 Rh5 Re1 Ng1 Qf3 Rg5 d1R Rg7 Rc1 Rg5 Rg8 c8B+ Ke8 Ne2 g1N Be6 Rg7 Bg8 Kd7 Nf4 Re2 Nh3 Rg2 e8Q+ Kc7 Nf4 Re7 Nh3 Qf1 Qeg6 Kd7 Qe4 Bf4 Qe3 N1e2+ Kd2 Qc7 Ng1 Rc8 Qg7 Qf3 Qe5 Qb8 Qf6 Bd1 Ke1 Qd5 Bc2 Qd3 Bb3 Rc2 Qee4 Bc1 Qee6+ Ke8 Qb4 R5c7 Qbg4 R2c5 Qgc4 Bdc2 Nc3 Nb5 Ra3 Kd8 Na2 Ke8 Qef7+ Kd7 Q7e6+ Kd8 Ba4 Ke8 Rb3 Kd8 Rc3 Na3 Bb3 Ke8 Qea6 Kd7 Qae6+
n1Q1q3/R2Qnk2/2N2R2/2bb3b/1rq1pq2/b1nqr1NN/1r4BP/3B3K b - - 0 1 legal: proof: d4 a5 g4 c5 e4 cxd4 f4 f5 b4 axb4 g5 fxe4 f5 h6 f6 gxf6 g6 f5 Bg5 hxg5 Bg2 f4 Bh3 Rh6 Bf1 Rh8 Kf2 e5 Kg2 d5 c4 b5 a4 d3 c5 b3 c6 d4 g7 g4 a5 g3 a6 e3 c7 d2 a7 d3 Qc2 d1N Nc3 e4 Ra4 d2 Qb1 b4 Bc4 e2 Bb5+ Kf7 Na2 e1Q Nc1 b2 Na2 b3 Bc6 Qe8 Bb5 Ne7 g8N Bb7 c8B Qe3 Nc3 f3+ Kf1 f2 Kg2 Nd7 Qa2 b1Q Nge2 Nb6 Ba6 Bd5 Nd4 b2 Bf1 Qbd3 Nc6 b1R Bg4 Rh3 Nf6 Rb2 Ne2 Rb8 a8Q Nc3 Nf4 d1B N6h5 Qc1 Qa6 Na8 Qc8 R8b4 Ra7 Qce3 Bge2 Qc5 Bf3 Qcc4 Qa4 Be2 Rg1 Bd1 B1e2 f1Q+ Kh1 Qf2 Rf1 Qfe3 Rf2 g2+ Kg1 Rg3 Nh3 Qf4 Bf1 Be2 Bg4 Re3 Ng3 Bg7 Qb5 Bd4 Qbb7 Bc5 Qbd7 Bd6 Bf5 Bh5 Bg4 Rb5 Bd1 Ba3 Rf3 R2b4 Kf2 g1B+ Kg2 Rb2+ Kh1 R5b4 Rf2 Re1 Rf3 Bc5 Rf2 Re3 Bg2 Qf5 Rf4 Qf6 Rg4 Qd6 Rg6 Qf4 Rf6+
3KN1B1/P1rb1q2/1R1Q1R1q/p3b3/1krqn2b/n2Q2q1/2B1n2b/Nr4N1 b - - 0 1 illegal: No possible last move
rb1RRNn1/1kbrb3/QB1Qq1P1/5pBb/1q4n1/6n1/n1K2n2/3n1N1N b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 a5 e3 dxe3 f5 axb4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 h4 b5 c4 d5 a4 Kd7 c5 Kc6 a5 e5 g6 e2 Kd2 e1B+ Kc2 g3 h5 d4 a6 f3 a7 f2 h6 f1N h7 b3+ Kd3 g2 Qc2 e4+ Ke2 b4 Kd1 d3 Qa2 e3 Qe2 b2 Qc2 d2 Qa4+ Kb7 Qa3 b3 Qa4 Qe8 Rh3 Be7 Rh1 Bg3 Qd7+ Bc7 Nh3 g1N Ra3 Ng3 Ra2 Nc6 Nf2 Ne5 Qd6 Nh3 Re1 Ng4 Nh1 Qd7 Ra4 Qe6 Rd4 f5 Rd3 Bd7 Rd4 Ba4 Rd5 Rd8 a8N Rd7 Nb6 Bc6 Rd3 Bf3+ Re2 N8f6 Rd4 Ra8 h8B Ng8 Bf6 Bb8 Bg5 Bc7 Nc3 b1N Ncd5 b2 Kc2 d1N c6+ Ka7 Bd2 Nhf2 Ba5 Nbc3 Re1 e2 Ne3 Kb8 Nf1 Na2 Rd3 Ka7 Rd5 Bb8 c7 Kb7 c8Q+ Ka7 Qc4 b1Q+ Kd2 Qb5 Kc2 Qb4 Rd2 Kb7 Qcd3 Rd8 Nd7 Bc7 Nf8 Rd7 Bb6 Bb8 Nh2 Bc7 Rg1 e1B Nf1 Be2 Rg2 Bb8 Rh2 Bf3 Rh8 Bc7 Re2 Bc3 Re3 Be5 Qa6+ Kb8 Rd3 Rd8 Rb3 N4f6 Rd3 Nh6 Qd7 Bh5 Nd2 Nf6g4 Qd4 Bcd6 Nh7 Bf4 Re8 Ng8 Nf8 Bfe5 Qa5 Kb7 Nf1 Bb8 Qf4 Rd5 Rd4 Bec7 Qe5 Rb5 Rdd8 Rd5 Qd4 Rd7 Qd6 Qf4 Qaa3 Qb4 Qa6+
B4bn1/4R1bq/6qn/2b2kn1/Q4PQq/r4B2/B3Np1q/2NbnKRr b - - 0 1 legal: proof: a4 f5 a5 h5 a6 g5 d3 h4 Qd2 g4 Qg5 bxa6 Qg7 a5 Qe5 a4 Qg3 hxg3 d4 f4 d5 e5 d6 f3 Kd2 e4 Kd1 fxg2 f3 e3 Bd2 cxd6 Ba5 d5 Be1 d4 Bf2 exf2 h4 Kf7 e4 Kf6 Ke2 a5 b4 d5 c4 a3 b5 a2 b6 a4 e5+ Kf5 h5 a3 b7 d3+ Kd1 d4 f4 d2 Ke2 d1N e6 d3+ Kd2 Qh4 c5 Nb2 c6 Nh6 e7 Nd7 e8B Nf6 b8Q Nfg8 Ne2 g1Q c7 g2 Qb3 g3 Nec3 Qgh2 Qb4 g1Q Qa4 g2 Ne2 Rh7 Ke3 d2 Nc1 d1Q Bf7 Nd3 Nc3 Ne1 Be2 Qc2 Bf3 Ra7 Rb1 a1B Rb7 a2 N3e2 Bag7 B7d5 a1B Ba2 Be6 c8B Qb1 Rd7 Bb3 Bcb7 Bd1 Ba8 Bad4+ Kd2 Bdc5 Re7 Nf7 h6 Qe4 Qe8 Ra3 Qa4 Rh8 h7 Nfh6 Qc6 Q2g3 Qb5 Q1h2 Qa4 Qg6 Rf1 Nd3 Re1 g1N Rf1 Nh3 Rg1 Ng5 Qc2 Nf6 Qa4 Rg8 h8Q Ne1 Qh7 Rh8 Qg8 Qh7 Rc7 Qe8 Re7 Qeg6 Nc3 Bb3 Ke2 Bc2 Kf1 Bd1 Qgc4 Nfg8 N3e2 Bb6 Qd4 Bc5 Qdd7+ Kf6 Qb4 Nf5 Rg4 Qh1+ Ng1 Q4h3+ Bg2 Q7h5 Qd3 Rh6 Qg3 Qh7 Re8 Q5g6 Re7 Rh4 Qbb3 Nfh6 Qa4 Kf5 Qf3 Rh5 Rg3 Rh4 Qh5 Qg4 Bgf3 Qhh3+ Rg2 Qhg3 Nge2 Rh1+ Rg1 Qh2 Qh4 Qgg3 Qh5 Qgh4 Qg4+
KN4r1/1B1RQ1N1/1k2nPb1/bQ1R1pq1/2q1r1qb/1pbr4/nB3b1Q/8 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 e5 axb4 f5 Qa5 e6 Qb6 Qf3 fxe6 f6 Qd8 Qf5 exf5 Ke2 b5 Kd3 g5 c4 d5 h4 Kd7 a4 Kc7 h5 e5 a5 g3 c5 g4 c6 g2 a6 e4+ Kc2 d3+ Kb3 e3 h6 e2 h7 e1B a7 g3 Ra3 d2 Ra4 d1Q+ Ka2 b3+ Kb2 b4 Nh3 g1B Ba6 g2 Ng5 d4 Nd2 d3 Ra1 Kb6 c7 Ne7 Rb1 Ng6 Nf7 Be6 c8Q Bd4+ Qc3 g1B Rh5 Rg8 h8Q Qg4 Ne5 Qc8 Rh7 Bf7 Ne4 d2 Ng5 d1R Bb7 Bgf2 Nc6 Na6 Nb8 Qc4 Ne6 Rd3 Ng7 Nf4 Ra1 Bh4 Ra5 Bdf2 Rd5 Ne6 Qe5 Bg6 Qe2 B8c5 Qe5 Re8 Qh2 Bce3 Qf8 B3d2 Qe7 Qg5 Nc6 Rac8 a8Q Rg8 Nb8 Rce8 Ka1 Bc3+ Bb2 Nac5 Qa4 Na6 Kb1 Qgg4 Ba3 b2 Kc2 Qc6 Kb3 b1Q+ Bb2 Qc1 Rd4 Qce4 Kc4 Qef4 Kd5 Qfg5 Kd6 b3 Rd5 Nb4 Kd7 Nd8 Kc8 Na2 Na6 Ba5+ Kb8 Bec3 Ka8 Qcf4 Nb8 Qc4 Qf8 Re2 Qe7 Ne6 Rh8 Rc8 Rhd8 Re4 R8d7 Rg8 Qb5+
2b3n1/2q5/Rb1pR1q1/Np2PN1r/bKBr3b/Q4q1b/3B1Qr1/2n3Qk b - - 0 1 illegal: No possible last move
1RNn2r1/1n1rB3/1rP5/1b2r1b1/b1pr2RQ/1n1N1k1K/QB2qqBp/8 b - - 0 1 legal: proof: b4 a5 h4 axb4 c4 c5 a4 g5 f4 gxh4 f5 d5 f6 exf6 Kf2 f5 Qc2 f4 Qe4+ Be7 Qd4 b3 Ke1 Qd6 Ra2 Bf8 Rc2 Qe7 Qc3 Qg5 Qb4 cxb4 c5 Qd8 Rc4 dxc4 Kf2 Ke7 g4 Kf6 Kg2 Kg5 d4 b5 e4 f5 c6 h5 d5 h3+ Kh2 h4 d6 b2 a5 b3 e5 b4 e6 Bh6 e7 Qb6 e8Q Ra7 d7 Na6 Qe1 Qf2+ Bg2 Nc5 a6 Nb7 Na3 b1R Be3 b2 Ne2 b3 Ng3 Rd1 Nh5 b1B Qf1 b2 Qe2 Rd4 Re1 Bc2 Ra1 b1R Qd2 Ba4 Qc2 Rb6 Kh1 h2 Ra2 Qe2 Bg1 f3 Nb5 f4 Nd6 f2 Rb2 f1N Qe4 f3 Nf4 f2 Nd3 Nd2 Bf1 Nb3 Kg2 h1R Bh2 Rg1+ Kh3 Rh7 d8B+ Re7 Be5 Rg3+ Kh2 h3 Qh7 Kh4 g5 Kg4 g6 Kf3 g7 Bg5 Qh4 Nh6 g8R Nf7 Bh8 Rd7 Be7 Nfd8 Rb1 Ra8 a7 Rgg4 Bhf6 Rge4 Rg6 Rb8 a8Q Re5 Qa7 Be3 Rg4 Bg5 Kh1 h2 Qa6 Ke3 Kg2 Ra8 Kh3 Rb8 Bg2 f1Q Bg7 Qg1 Bf1 Kf3 Qa8 Qgf2 Qa5 Bb5 Qa2 Ba4 Bh8 N7c5 Bhf6 Ba6 Nc8 B6b5 Rb2 Ncb7 Bh8 Rf5 Be5 Rdf4 Bc3 Rfd4 Rb1 Ra8 Bb2 Re5 Rd1 Rba6 Qa3 Nd6 Ba1 N8f7 Bf8 Nc1 Be7 Rb8 Na7 Rg8 Qa2 Nd8 Bf6 Nb3 Rb1 Nc1 Rb4 Nb3 Bb2 Rb6 Ba1 Rb8 Bb2 Ba6 Be7 Rbb7 Rb6 B6b5 Nc8 Rb8 Ra6 Rb6 Ra8 N6b7 Rb8 Qe4 Rg1 Qee1 Rg4 Qee2 Bg2+
brQ2qN1/4rPB1/5Rrn/3B2q1/1b4k1/p3b1q1/QN4pr/R1nKN1r1 b - - 0 1 legal: proof: g4 f5 e4 fxe4 d4 h5 b4 hxg4 a4 c5 a5 cxd4 a6 bxa6 b5 axb5 Ra4 b4 Ra1 b3 f4 Kf7 c4 Ke6 h4 Kf5 c5 a5 c6 d5 c7 g5 h5 e5 h6 g3 h7 b2 Qc2 g2 Nh3 g1B Qc5 d3 Qb5 a4 Bg2 a3 Qa6 e3 Qd6 e2 Rh2 g4 Qh6 e4 Nf2 g3 Nc3 b1Q Bf3 d4 Rh4 g2 Qa6 Bb7 c8N Qg5 Rh5 Nh6 Rh4 Nd7 Qa4 Rb8 Qb4 Ba8 Rg4 Ne5 Nh3 Be3 Qc4 Qb4 Qb5 Rg8 h8Q Rg6 Qc4 Qbe7 Nb1 Qe8 Qc2 Bb4+ Nc3 Qf8 Rg3 Bg1 Kd2 e1R Qa2 Re2+ Kd1 e3 Bc6 d2 Na4 Nd3 Rf3 Kg4 Bb2 Nc1 f5 Bf2 f6 Re1+ Kc2 d1R f7 e2 Bd5 Be3 Nf4 Rg1 Nd3 e1Q Rf1 Qg3 Ne7 Re1 Ng8 Rh1 Rf6 Rh2 Bc3 Rg1 Ne1 d3+ Kd1 d2 Kc2 d1R Nb2 Rd3 Bd4 Rc3+ Kd1 Rc4 Ra6 Rcc6 Bg7 Rc7 Rf6 Re7 Rf5 Rge6 Rf6 Ra6 Qh7 Rc6 Qc2 Ra6 Qc8+ Rae6 Rf5 Rg6 Rf6+
Q2R1N2/K1k2p2/1n2r1pb/1Nq1P3/Q1b5/1b1nR1n1/5rqN/2qBqrB1 b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kf2 b5 e4 d5 h4 Kd7 c4 b4 e5 g6 h5 g3+ Kf3 d3 h6 a2 h7 d2 c5 d4 Ke4 b3 Kd5 d3 c6+ Kc7+ Kc4 g2 Kb5 f3 Rh5 b2 Qb3 d1B Rh2 d2 Na3 b1Q Nc4 f2 Na3 Qd4 Rh6 Ra6 Be2 f1R Bb2 Nd7 Bf3 Ngf6 Rh3 Ne4 Qa4 Bb3 Bd1 Nb6 Re3 Qc1 Nf3 g1Q Nh2 Bh6 Rb1 Qd6 Bd4 a1Q Bc5 Re8 h8Q Re6 Qe8 Bd7 Qa8 Ng3 Bd4 Ra7 Rb2 Rb7 Ka6 Qg2 Rc2 Rb8 Ka7 Qc5 Rcc3 Bc8 Rcd3 Ba6 Nb5+ Kc8 Be2 d1N c7 Nf2 Bd1 Kd7 Rd2 Nd3 c8N Qac3 Ne7 Rh8 Nd5 Rc8 Nf4 Rb8 Rb2 Qe1 Rd2 Rc8 Qa3 Rcc6 Qa4 Rf6 Ne6 R6f2 Na3 Bac4 Nf8+ Ke7 Nb5 Re6 Rf3 Re2 Bg1 Ref2 Qe4 Kd8 Re3 Qh1 Na3 Kc7 Qa8 Nb2 Rd6 Nd3 Rd8 Qg2 Nb5+
Nq1QNr1n/R2pB1n1/Rr1n3p/Rb6/1Pq5/1q4n1/4rk1K/bQB1b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 e5 d5 exf4 d6 cxd6 Nc3 d5 Nb1 d4 h4 Bd6 g5 Nh6 Bh3 Be5 Bg4 hxg4 h5 Ng8 h6 Bf6 h7 Be7 Qd3 Ba3 Qh3 Bf8 Qh6 gxh6 Kf1 Ke7 Kg2 Ke6 e4 Ke5 c4 f5 c5 a5 c6 d3 g6 Kd4 e5 f3+ Kg3 f4+ Kh2 f2 b3 f1N+ Kg2 f3+ Kf2 d2 g7 d1N+ Ke1 g3 e6 a3 e7 g2 e8Q a2 c7 a4 Qe7 f2+ Ke2 a3 Kf3 Nde3 Qg5 Ng3 Nh3 f1Q+ Nf2 g1Q Kf4 Ba6 c8Q Ne7 g8R Nc4 Qh4 Ng6+ Kg4 Bb5 Rh3 Nd6 Qa6 Nc6 Nd2 Ke3 Qb7 Qb8 Qd8 Qc4+ Nfe4 Ra6 Rh5 Nd4 Kh3 N4f5 Nf6 Rb6 Ne8 Qd1 Kh2 Kf2 b4 Bg7 Qe4 Qdb3 Qb1 Bc3 Rg7 Rg8 h8B Rf8 Re7 Ng7 Re6 Ba4 Ra5 Bb5 Nf1 Be1 Ne3 N7h5 Bf6 Ng7 Nd5 Nh8 Qe4 Bc6 Be7 Bb5 Rb1 a1B Ndc7 a2 Na8 Bac3 Ra7 a1R Qd3 Ra2 Ra1 Rb2 Qb1 Re2 R1a6 Ba1 Re5 Bc6 Rea5 Ba4 Rb7 Bb5 Rba7
KRrb1B2/2pr3q/3bb2R/2P4q/2k2r1q/pq5n/2NQ2B1/Q1NQ1nn1 b - - 0 1 legal: proof: e4 b5 a4 bxa4 Qf3 d5 Qd1 dxe4 h4 g5 f3 exf3 b3 axb3 Ba6 gxh4 Bb5+ Nc6 Bf1 Nb8 Kf2 Kd7 Ke3 Kc6 Ke4 Kc5 g4 f5+ Ke5 h5 c4 a5 d3 a4 g5 a3 g6 b2 g7 h3 Nc3 b1Q Nd5 f4 Qb3 f2 Qd1 h4 Qc2 h2 Qd1 f3 Qe1 h3 Bb2 Rh7 Nf6 Nd7+ Ke4 e5 Nh5 Ne7 g8Q Ng6 Ra2 Nf4 Bc1 Bd6 Qg5 Qb3 Bg2 f1R Ng3 f2 N1e2 Qe7 Qh5 Qh4 Rb2 Re7 Nd4 Rg7 Rg1 h1Q Nge2 h2 Nc2 Nh3+ Bf4 Rf7 Qa1 Rd1 Re1 f1N Nc1 Rd2 Qd1 Rf5 Ne3 Kb4 Kd5 e4+ Be5 Rf4 Bg7 Ne5 d4 Nf3 Kc6 Be6 Kb7 Nfg1 c5 Rc8 Nc2+ Kc4+ Ka7 e3 d5 e2 Bf8 Rdd4 Qd2 Rd3 Rd1 e1B Rb1 Qa2 Rb8 Qb3 Ka8 Bf2 Re1 Bd4 Qd1 Bf6 Re5 Bd8 Rh5 Rd2 Rh6 Rdd4 Be4 Qhf3 Qd2 Qfh5 Bg2 h1Q Qd1 Be5 d6 Rd3 d7 Bd6 Bb7 Qe4 Bc6 Qh7 Bg2 Rg3 Qd2 Rg7 Qd1 Bg5 d8Q Rd7 Qe7 Bf6 Qg7 Bd8 Qg5 Re4 Qe3 Rf4 Qed2
r2qb3/2bN1Q1k/1NK1Q1b1/3p1R2/B2b1Bn1/Ppb2brb/Nq5n/3R4 b - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 g4 h5 b5 hxg4 b6 axb6 c5 bxc5 Ba3 c4 Bc1 c3 Kf2 g5 h4 f5 e4 Kf7 a3 Kg6 e5 b5 e6 d5 h5+ Kh7 h6 c2 e7 d3 e8N f3 Ke3 f2 Kd4 f4 Bd2 c1Q Bh3 f1B Qf3 g3 Qf2 b4 Qg2 b3 Bc3 g4 Ra2 f3 Qc2 f2 Qd1 d2 Bb4 g2 Qe1 d1B Qe4+ Bf5 Ng7 g3 Ke5 Bg6 Nc3 Bf3 Bd7 Bb5 Ne6 f1B Nc5 Bg7+ Kd6 Qb2 Qe6 Nf6 N5a4 Nc6 Nb6 Ne5 Bc5 Re8 Be3 Neg4 Bf4 Rg8 Ra1 Bh8 Rh5 Nh2 Na2 Nfg4 Rf5 Bc3 Rd1 Ba4 Kc5 Rg7 Bb5 Rg8 Kc6 Rg7 Ne2 g1B Nec1 g2 Nd3 Bgd4 Nc5 g1B Ncd7 Bh3 Qf7 Be5 Qe6 Bc7 Qf7 Kh8 h7 Rg8 Qe6 Kg7 Nf6 Bgd4 h8Q+ Kf8 Qh5 Kg7 Qg5 Kh8 Nfd7 Kh7 Qgf6 Re8 Qd6 Re2 Qde6 Rg2 Qf8 Rg3 Qff7+ Bg7 Kb7 Kh8 Nb8 Bgd4 Bd7 Bb5 Be8 Bbf1 Ba4 Bb5 Re5 Be8 Rf5 Bh5 N8d7 Bg6 Qf8+ Kh7 Kc6 Nf1 Qff6 Nfh2 Qff7+
kn3K2/n1rQN1rB/3n4/8/1Q3n1R/2rR2pP/bqpb2Rb/N1rr3B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 d4 Kd7 Kd2 Kc6 Ke3 b5 Ke4 Kb7 Ke5 f5 e4 g5 a4 c5 h3 c3 d5 c2 a5 c1R d6 b3 d7 g2 Ke6 c4 Kf7 g3 e5 b4 e6 g4 e7 f4 e8B b2 Bd3 c3 Qe2 f3 Qe1 c2 Bb5 f2 Qe6 f1R+ Qf5 b3 Qf6 Rfd1 Rh2 Rh7+ Qg7 Ra7 a6+ Ka8 Ra4 Nh6+ Kg6 Bb4 Qf6 Nf7 Bc4 Rc7 a7 Nd6 Bg8 Bd2 Nc3 b1N Qe7 b2 Nge2 g1N Nd4 g2 Nd5 g3 Nb3 Ne2 Rh4 g1B Na1 Nbc3 Rg2 b1R Qe6 Bh2 Ne7 Rf7 Bh7 Ncb5 Qg4 Rb3 Qb4 Rg7+ Kf6 Kb7 a8R Rbc3 Ra3 Nf4 Bf7 Qf8 d8Q Be6 Qd7 Qh8 Bfg6 Ba2 Be4+ Rc6 Rd3 Ka8 Rg1 Na7 Bh1 Bb3 Rg2 Rc3 Ng8 Bf7 Ke7 Ba2+ Kf8 Rg4 Qa3 Qe5 Ne7 Rg7 Qb4 Qb5 Qa5 Qb2 Qb4
Nn6/n3k1bK/1R1q1qQ1/rr1B1Qpp/3B1q2/4NR1P/2q1Rq2/q2b1r2 b - - 0 1 legal: proof: c4 d5 b4 a6 b5 axb5 e3 bxc4 e4 c3 g4 dxe4 a4 f5 a5 fxg4 a6 bxa6 Qf3 a5 Qd1 a4 Ke2 e5 Ke3 c5 f4 a3 d4 c2 d5 a2 f5 g3 f6 g2 h3 c4 d6 c3 Qd5 Ne7 Qb3 Bg4 Qe6 Bd1 Rh2 Ra5 Qd5 Nec6 Ne2 g1R Nf4 Na7 Bc4 Rf1 Bb2 c1Q+ Nd2 c2 Ng2 g6 Qc5 Bg7 f7+ Kd7 Rb1 a1Q f8Q h6 Qf2 Qf6 Qg3 Rc8 Bg8 h5 Bb3 Ke8 d7+ Kd8 Qb5 Ke7 d8R Rc5 Rd3 g5 Bd4 Qca3 Nc4 Rd5 Nb6 c1Q+ Rd2 Qa1b2 Na8 Qad6 Qd3 Qa2 Qf4 Qa1 Bc4 Qc2 Rb6 Rdb5 Bd5 Rh1 Kf2 e3+ Kg3 e2 Kf3 Rf1+ Ke4 Qh6 Kf5 e4 Qff3 e1Q Rf2 e3 Qf4 Qed2 Rf3 e2 Qg4 e1Q Qf4 Qg3 Ne3 Qde1 Re2 Qef2 Qg4 Bf6 Qf4 Qf8 Kg6 Bg7+ Kh7 Qff6 Qg6 Qgh2 Qg4 Qhf4 Q4f5
1R2k1bn/2Q1b3/nq1nr2P/Q2p1p2/KBN4Q/B4b2/2Nb1rbr/1r1R4 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 e5 Ra3 e6 Ra5 Bd3 fxe6 f6 Ra8 Bf5 exf5 Kd2 e5 h4 b5 a4 g5 c4 d5 Kc2 g3 Kb3 e4 a5 d3 a6 g2 h5 d2 c5 g4 c6 e3 c7 g3 a7 e2 Nh3 g1B Nf2 e1R Rh3 g2 Nc3 Re6 Qf3 d1B+ Ka2 b3+ Kb2 b4 Rh2 Na6 Qe4 Ne7 Qh4 Bf3 Qf4 Ng6 Qh4 Be7 Nfd1 Be3 Rh1 g1R Rb1 Bd2 Ne3 Rb8 a8Q Rf1 Nc2 Rf2 Na4 Rb7 Ka1 b2+ Ka2 Rh6 Kb3 Nh8 Rg1 Qd6 Rd1 Qb6 Ra1 b1B Ba3 Rh7 Nb2 Bg2 Ka4 b3 Nc4 b2 Bb4 Rb8 Ra3 Rb7 Rb3 Bf3 Ne1 Bbe4 Nc2 b1N Qa7 Na3 f7+ Kd7 f8B Ke8 Rb2 Nb5 Rbb1 Nd6 h6 Rg7 Rb3 Rgg2 Ba3 Rh2 Rbb1 Nb4 Qa5 Na6 Bb4 Bg2 Ba3 Bd7+ Rb5 Bef3 c8Q+ Qd8 Qcc7 Bc8 Rc5 Rb1 Rb5 Bd7 Qb8 Bc8 Rb7 Qb6 Bb4 Re5 Qc7 Be6 Bg7 Ree2 Bb2 Bg8 B2a3 Re6 Rb8+
1r2b3/3q3k/1p1b2N1/nR1Rb1r1/QN6/2rnKPp1/n2Q1B1Q/r1B1b1b1 b - - 0 1 legal: proof: e4 h5 b4 f5 d4 fxe4 g4 hxg4 a3 c5 b5 cxd4 b6 axb6 Bh6 b5 Bc4 b4 Ba2 b3 Bc1 bxa2 Ke2 Kf7 h4 Kg6 c4 e5 a4 d5 c5 g3 c6 e3 f3 e4 h5+ Kh7 a5 g5 c7 g4 h6 b6 a6 g2 a7 d3+ Ke1 d2+ Ke2 g3 Qa4 d1R Nc3 d4 Ba3 Ne7 Nb5 Rc1 Qb4 Bd7 c8Q Nec6 Qc4 Na6 Nd6 Rb8 a8Q Nab4 Rh5 Rg8 Qa5 Rc3 Nh3 g1B Nf4 Rg5 Nb5 Bd6 Nc7 Be8 Qh3 Qd7 Rd1 a1B Qh2 Na2 Qca4 Bb2 Qd5 Na5 Na6 Ba1 Nb4 d3+ Kf1 d2 Ke2 Bb2 Ng6 Ba1 Rb1 d1R Rb3 Rb1 Bc1 Bb2 Qd2 Ra1 Kd1 e2+ Ke1 Rcc5 Rd3 Bbe5 Rd5 Kg8 h7+ Kg7 Qf4 Rc3 Kd2 e1N h8B+ Kg8 Ke2 Nd3 Qd2 e3 Rb5 Bf4 Bd4 Bfe5 Rd5 Ra3 Kd1 e2+ Kc2 e1B Bf2 Kg7 Kd1 Rb3 Ke2 Rc3 Ke3 Kg8 Rh4 Kg7 Rhd4 Kg8 Rb5 Kg7 Rdd5 Kg8 Qg2 Kh7 Qh2+
Q1bK1k2/2rpP3/bpR1r1n1/5n2/2r1bq1r/Q2Bb1NR/1B6/1Q2nrN1 b - - 0 1 illegal: No possible last move
4n2Q/1Bp1p1bR/NB1rb1PN/2b1q1n1/Kb3R2/3r3r/bk1Q1Qn1/6n1 b - - 0 1 illegal: No possible last move
1b3kR1/p1q3b1/3bpN2/3QRbr1/2bBP2q/1nB5/5Rbr/Q2nK1nN b - - 0 1 illegal: No possible last move
1b2k3/2n3K1/b2q2N1/1rr1Rpn1/4BQQ1/r1N1bbq1/q2PBp2/R4rQ1 b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Ba3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 f5 Kf3 h5 e4 c5 g4 b5 a5 b4 a6 b3 a7 h3 e5 h4 e6 a2 e7 b2 g5 h2 g6 c3 g7 c2 Bg2 c1Q Nc3 b1Q Na4 c4 Qe1 c3 Nb2 h3 Qe5 c2 Bf1 Nf6 g8B Bh6 Qa5 Ba6 Be2 Ne4 Qe5 Qe1 Bec4 c1R Nd3 Qd6 Bcd5 Rc5 Ne2 Qg1 Nc3 Ng5+ Ke2 Qg3 Re1 h1B Be4 f3+ Ke3 h2 Qf4 Bg2 Ne5 h1R Bc4 Rf1 Be2 Bh1 Ng6 Bg2 Nd5 f2+ Kd4 Bf3 Qg4 Bc4 Qf4 Na6 Qg4 Rb8 a8Q Nc7 Qa4+ Bb5 Qd1 Ba6 Qf4 Rbb5 Qc1 Qd7 Ke5 Rh7 Kf6 Qb3 Rb1 a1B+ Nc3 Qa2 Qg4 Bb2 Ra1 Ba3 Qd1 Bb4 Qa4 Ba5 Qd4 Bb6 Qd6 Ba7 Qe5 Bb8 Qef4 Qh3 Qg1 Qg3 Qg4 Nge6 Qf4 Qd6 Qg4 Be3 Qf4 Rh6 Qg4 Ng5+ Kg7 Qc6 Qf4 Rh3 Qg4 Kd7 e8Q+ Kd6 Qe5+ Kd7 Qd5+ Qcd6 Na4 Qh2 Qc4 Ke8 Bd1 Bf4 Bb1+ Be2 Bbc2 Rhb3 Nc3 Qg3 Bb1 Ra3 Bd3 Be3 Qcf4 Bf3 B1c2 Qae6 Bb1 Bd4+ Re5 Be3 Be2 Nd5 Ne7 Nc7 Be4 Qa2 Ng6+
4Q2n/b1b2kBN/3rq1nr/5pQ1/1rb1n1NR/R1BP1q1p/n1K3N1/4b3 b - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 e5 h4 exf4 b4 a5 g5 axb4 g6 hxg6 Bg2 g5 Bf1 g4 Bh3 gxh3 a4 g5 e4 f5 e5 c5 d3 b5 Kd2 g4 h5 g3 a5 f3 e6 b3 a6 c3+ Ke1 b2 e7 c2 Kd2 b4 h6 g2 h7 b3 a7 c4 Nc3 b1N+ Ke3 f2 Qg4 f1Q Qe4 b2 Nb5 c3 Qf3 Be6 Nc7+ Kf7 e8N Nc6 Ra2 Nge7 Qg4 Ne5 Nf6 Nd2 Rh2 b1R Nb5 Rb4 Ra3 Qc8 Qg3 Ne4 Qg5 N7g6 Bb2 c1N Ng4 c2 Bc3 Bc4 Nc7 Na2 Nf3 g1B+ Rf2 Bd6 Nd5 Qe6 Nh4 Bc7 Ndf6 Rad8 a8Q Rd6 Ng2 c1B+ Bd2 Rhb8 h8B R8b6 Bg7 Nh8 Nh7 Neg6 Qc8 Bb2 Be1 Be5 Bc3 Bg3 Qb8 B1h2 Rf4 Be1 Qc8 Qh1 Ke2 Bg1 Kd1 Rbc6 Kc2 Ba7 Nf2 Rcb6 Rh4 Qf1 Ng4 Qf3 Qb8 Qe7 Nhf6 Rdc6 Ra5 Nf4 Nd7 Rh6 Nf8 Qe6 Ra3 Nfg6 Nh7 Rd6 Qe8+
5B1K/1n1bbrN1/nN4b1/1P2n1q1/nQ4rN/4pp2/bBq2k2/RR3Q1r b - - 0 1 legal: proof: d4 c5 e4 cxd4 h4 g5 f4 gxh4 a4 f5 a5 fxe4 a6 bxa6 Bc4 a5 Be2 a4 Bf3 exf3 Kd2 Kf7 Kd3 Kg6 Ke4 Kh5 Ke5 Kg4 c4 Kg3 b4 d5 c5 h5 c6 a5 b5 d3 c7 d4 f5 h3 f6 a3 f7 a2 Bg5 d2 Nc3 h2 Qb1 d1B Nge2+ Kf2 g4 h4 Qb3 d3 Rc1 a1N Ng1 a4 Na2 h3 Nb4 d2 Rc2 a3 Na2 Nf6 Qa4 Bd7 c8N Rh7 Nc3 a2 Bf4 Nb3 g5 a1N g6 Na5 g7 Na6 g8Q N1b3 Qg7 Ng4+ Ke4 e5 Nd6 Nb7 Nge2 Be7 f8B N3c5+ Kd5 e4 Ne8 e3 Be5 Rb8 Ra2 Bc2 Nf4 d1B Qb4 Na4 Ra1 Bg6 Ng2 Bb3+ Kd4 Rc8 Nd5 Ba2 Rhb1 h1Q Nh4 h2 Nb6 Qg2 Qf6 h1R Ng7 Rc3 Qf7 Rcc1 Qfc4 Rcg1 Kd5 Qc7 Bb2 Ne5 Kd4 Qg5 Kd5 Bc6+ Ke6 Bce8 Qcb3 Qc2 Qd5 Nc4 Qd1 Rg4 Qc1 Be4 Qd1 Bd7+ Kf7 Bg6+ Kg8 Ne5+ Ne6 Rf7 Kh8 Qe2 Ng7 Qc2 Qf1+
4n1q1/KB2Rr1Q/b4r2/rp1Nb3/N1r1bN2/QB4P1/p2qR2n/nb3k2 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kf2 Ke7 c4 Kf6 e4 Kg5 c5 h5 e5 b5 a5 f5 e6 d5 e7 h3 e8B Kh4 a6 a2 c6 h2 c7 d3 a7 d2 Bd7 d4 Be6 d3 Bf7 f3 Ke3 Kg3 Be8 f4+ Ke4 Kf2 g3 h4 Qc2 h3 Nc3 Nf6+ Ke5 Rh7 Qc1 d1R Bc6 d2 Qb2 Nbd7+ Kd4 Nc5+ Nd5 Rf7 Be8 Bd6 Qb4 Ba6 c8N Rc1 Qb2 Nb3+ Kd3 Rc4 Bd7 Be5 Bg2 Qg8 Rb1 Na1 Ne2 Ne8 Rhe1 h1B Qc2 h2 Rb2 Rf6 Ncb6 d1Q+ Qd2 Qc1 Be6 Rf7 Qc2 Rf6 Nd4+ Qd2+ Ke4 Rf7 Na4 Rf6 Re2+ Kg1 Rb3 f2 Rbe3 f1N Qb1 f3 Qd3 Rb8 a8Q f2 Qa7 Rf7 Qa3 Ra8 Qb7 Rf6 Qh7 Ra7 Bf3 Bg2 Bf7 h1B Be6 Nh2 Bf7 Rcc7 Ne6 f1R Nef4 Rfc1 Be6 Kf1 Bf7 Qa5 Be6 Rcf7 Kd3 Bh3 Re4 Bf5 Ke3 Bd6 Kd4 Rc8 R4e3 Bb1 Re4 Bc7 Kc5 Qd2 Kc6 Be5+ Kb6 Bb7 R4e3 Ra5 Re4 Ba6 R4e3 Rf8 Ka7 Rc4 Bf7 Bb2 Re7 Be5 Ndc3 Bg2 Bb7 Bge4 Bfd5 R8f7 Be6 Rc7 Bb3 Rc4 Ncd5
1r3r2/q4B1K/N1Qb2P1/3B2Np/n1bn1Rr1/p3rq2/q2Rn1R1/k1n4Q b - - 0 1 legal: proof: d4 e5 f4 exf4 a4 c5 h4 cxd4 h5 b5 h6 bxa4 b3 a3 Bb2 axb2 Qd2 gxh6 Qc1 h5 Qd1 h4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 a5 c4 d5+ Kd3 Ke5 e4 f5 b4 f3 b5 f4 c5 h3 b6 f2 g5 f3 c6 h2 b7 a4 c7 a3 g6 Nc6 b8R Ba6+ Rb5 Nb4+ Kd2 d3 Ke3 d2 c8B Nh6 Be6 Qe7 Bc4 f1N+ Kf2 Kd4 e5 Ng3 Bd7 Ne2 e6 Re8 Rb7 Nd3+ Kf1 f2 Kg2 f1R Kh3 Ndc1 Ba4 Nf5 Bcb3 Bc4 Nc3 b1Q Bc6 Qa2 Rb4 Qa7 Na4 Bd6 Nc5 Kc3 e7 Kb2 Na6 d4 Bd5 d3 Nf3 Nfd4 Ng5 Rff8 Kh4 Rhg8 Qe1 d1Q Rg1 d2 Rg2 Rh8 Qg1 h1R+ Qh2 Rg1 Qh1 Rb8 e8Q Rh7 Qc8 Re7 Qc6 Re3 Ra4 Qf1 Rb4 d1N Rb1+ Kc3 Rb2 Qf3 Rd2 Nb2 Bf7 Na4 Bd5 Nc2 Bf7 Kb2 Bd5 Bd3 Rf4 Ka1 Bf7 Ncd4 Bbd5 Qd7 Ne6 Qa7 Kg5 Bc4 Kh6 Qa8 Kh7 Qa7 Rf2 Rg5 Rg2 Rg4 Ng5
1K1n3b/1P2n1N1/1Q1N2B1/4Rp1b/1n1B2bp/Rk1b2Q1/q1rqn2r/5Br1 b - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 h4 g5 f4 gxh4 c3 dxc3 Bd2 exf4 Be3 Bb4 Bc1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 a5 b4 d5+ Kd4 f3 e4 c2 g5 f2 g6 h3 g7 a3 b5 a2 b6 h2 b7 a4 e5 a3 Qd2 Nc6+ Ke3 d4+ Kf4 Kd5 e6 d3 e7 Kc4 e8Q Nge7 g8B Kb3 Qe3 Bg7 Qe5 d2 Bb5 d1B Qd7 f1B Nf3 Bd3 Qdd4 Bg4 Qb6 Rc8 Bh7 f5 Be3 c1N Re1 h1R Nc3 Rg1 Bd4 Qd5 Bg6 Nd8 Ne4 Rc2 Nd6 Ne2+ Ke3 Rh7 Ng5 Bh8 Ne6 Qg2 Ng7 Qh2 Rc1 a1Q Qg3 a2 Rb1+ Qb2 Rc1 a1N Rb1 Nc1 Kf4 Qd2+ Ke5 Ne2 Rc1 Qa2 Rb1+ Rb2 Rc1 Nc2 Ra1 Nb4 Ba6 Nf7+ Ke6 h4 Kd7 Nd8 Kc7 Rc2+ Kb8 Rh6 Bh7 Re6 Bg6 Re4 Bb5 Rf4 Ba6 Rf2 Bb5 Rh2 Ba6 Nc3 Re5 Bh5 Bb5 Bdg4 Ba6 Be4 Bf1 Bd3 Rb5 Ne2 Re5 Qb2 Ra8 Qa2 Ra3+
nN2rr2/Np1QB1K1/1k1n1P1p/bqb2q2/6RR/3r4/n1B2r2/Qb1n1B2 b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 Kd2 e5 f4 d5 c4 Kd7 g4 Kc7 g5 h3 f5 a2 c5 h2 c6 d3 Kc3 h6 f6 d4+ Kc4 e3 g6 e4 g7 e2 Nf3 e1B Qb3 d2 Qb2 d1N Qf2 e3 Rg1 h1R Bd2 d3 Bh3 e2 Qg3+ Kb6 c7 Bc5 Qh2 Qd7 Bb4 d2 Qf4 Qb5+ Kd5 Ra3 Ke5 Na6 Nd4 Nc3 Bf1 d1N Nc6 Ne7 g8B Nf5 Qd4 Nd6 Bb3 Bf5 c8Q Rh2 Rg4 Nc7 Nb8 Na8 Bc2 Rf8 Qd7 Rf2 Rh4 Bg6 Ke6 Bd2 Rg4 e1R+ Qe5 Rb3 Na3 Bd3 Rb1 a1Q Rh4 Na2 Rc1 Qa5 Nb5 Qb1 Na7 Qb5 Ke7 Be4 Qa1 Rd3 Ba3 Ba5 Rg4 Q1b2 Rb1 Qc1 Rb4 Qf4 Rh4 Bg6+ Re4 Qf5 Bb4 Be3 Reg4 Bc5+ Qe6 Ra3 Nbc6 Nc4+ Kd7 Be7 Ba4 Qf3 Qd6 Bb1 Bc2 Rd3 Qdd4+ Qc5 Nb8 Bd6 Ba3 Ree8 Bb4 Be7 Ke6 Qf4 Qd7 Qb5 Bd6 Qf3 Bf4 Bc5+ Kf5 Ra3 Kg6 Rd3 Kg7 Qe4 Bd6 Qf5 Be7 Nd6 Rg6 Qh3 Rg1 Qf5 Rgg4
kB1q2b1/4b1nb/Nrqn4/r2N4/pp5R/bQrQ2K1/RP2pB1Q/2n5 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 g5 e5 gxh4 e6 fxe6 a5 e5 Bg5 Qxa5+ Bd2 Qd8 Bc1 e4 Bc4 Nh6 Bg8 Nxg8 f4 h5 Kf2 a5 g4 e5 c4 d5 c5 Kd7 f5 Kc6 g5 Kb7 g6 a4 f6 h3 g7 e3+ Kg3 d3 f7 h4+ Kh2 e2 Ra3 e1B Rc3 e4 Qc2 d4 Qe2 d2 Qf3 d1B Rc4 d3 Bg5 d2 Qf2 e3 Bf4 e2 Qf1 Nf6 g8Q Bb3 Qg3 d1N Nd2 Nh5 Nb1 Nf2 Rc1 Be7 f8B Nd3 Bc7 Bg8 Qfg2+ Nc6 Qg5 Bb4 Q5g3 Rh6 Nd2 Ra5 Nb3 Ng7 Bb8 Ka8 Ra1 Bf5 Ra2 Nc1 Qd3 Bfh7 Qf2 Nd4 c6 Ndf5 c7 Nd6 c8Q Re6 Qcc4 Ba3 Nc5 b4 Na6 Re3 Qdb3 Rc3 Qd3 Bf7 Nf3 Be6 Nd4 Beg8 Kg1 h2+ Kg2 h3+ Kg3 Rc2 Nc6 Rc3 Rf1 h1Q Qh2 Qe4 Rf4 Qe6 Rh4 Qf6 Qg1 h2 Qg2 h1R Qh2 Ne6 Bh6 Ng7 Be3 Rf1 Bb6 Qe6 B6a7 Rf6 Bf2 Qe4 Nd4 Qc6 Ne6 Rff5 Nf4 Rfb5 Nd5 Rb7 Qf3 Rb6 Qd3
q4B2/N3Q1n1/6br/p1k1Npqb/4pB1R/K1Pq2nn/3Q1r2/b4RBq b - - 0 1 illegal: No possible last move
q2q1bR1/rbR3r1/p5Qp/Q1B1PrBK/3r1pN1/1R6/6kn/1nr1rN2 b - - 0 1 legal: proof: h4 b5 f4 c5 d4 cxd4 b4 g5 a4 bxa4 f5 gxh4 e3 e6 Bc4 exf5 Ba2 f4 Bb3 axb3 Ke2 Ke7 Kf3 Ke6 Kg4 Ke5 c4 Ke4 c5 d5+ Kh5 f5 g4 h3 c6 d3 b5 h6 g5 f3 c7 d2 g6 f2 g7 f1R b6 a6 b7 d4 Ne2 Kf3 e4 h2 e5 b2 Ra3+ d3 Nbc3 b1R Ra1 Nd7 b8B Nb6 Qa4 d1R Qa5 d2 Qa2 Nf6+ Kg6 Bb7 g8Q Ra7 c8R Nc4 Ne4 Na3 N2g3 Rh7 Bd6 Rde1 Rg1 h1Q Rc7 d1R Nf2 Ng4 Bc5 Nh2 Kh5 Rg7 Bg5 Rd4 Ng4 Rbc1 Rb1 Qg2 Rb6 Nb1 Qa5 Qh1 Nf6 Kf2 Rb3 Qhd5 Qh7 Qa8 Qg6 Qdd8 Rh1 Kg2 Ng4 Rf3 Nf1 f4 Nd2 Rg3 Rf1 Rf7 Rff3 Rf5 Nf1 Rd7 Rfd3 Rg7 Rd6 Rd3 Re6 Rd4 Re8 Bd6 Rh8 Bf8 Rg8
bk5n/Nnp2BK1/8/r1n4r/QQp2n1B/1R2P1p1/q1Rn1N2/rr2B1b1 b - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 g4 h5 f4 exf4 a3 bxa3 Bh3 hxg4 Bg2 Bc5 Bf1 Bf8 Kf2 Kd7 d4 b5 h4 g5 h5 f5 d5 f3 Kg3 f4+ Kf2 g3+ Ke1 g4 Kd2 g2 Kc3 b4+ Kd4 b3 Ke5 b2 h6 a2 d6 g3 h7 f2 Kf5 f3 Kg6 Nh6 Nd2 b1R Qb3 Ra5 Qc3 Nf7 Rh4 Na6 Nb3 Nc5 Nh3 g1N Nd4 Nb7 Bg2 f1R Bd2 f2 Bd5 Bh6 Qc2 Be3 Kg7 Rfc1 Re4 f1N Nf2 Nh3 Nb5 Nf4 Be1 Nd2 Na7 Qh4 Qd1 Qh2 Qa4+ Kd8 Be6 Bd7 Rd4 Bc6 d7 Bd5 Rd3 Qg2 Nh1 Bg1 e3 Rbb5 Qd1 Qe4 Bf5 Nbd6 Bh3 Ba8 Bg2 Nb7 Nf2 Qe8 Rb1 a1N Rb2 Nab3 Bd5 N3c5 Qb3 Raa1 Qb4 Rba5 Be6 Rcb1 Ra2 Ne5 Bf7 Neg6 Rb2 Qe4 Ra3 Qc2 Raa2 Ke7 d8B+ Kd7 Bh4 Qb3 Ra3 Qa2 Rc3 Re8 h8Q Re5 Rbc2 Rh5 Qg8 Nh8 Rb3 Nd8 Nb5 Kc8 Qe8 Kb8 Qd7 Ndb7 Na7 Ra3 Qc6 Ra5 Qca4
2n2nNb/BkBQrqb1/2pR3q/Qr2n2P/2RpK1p1/b7/bn6/2R3N1 b - - 0 1 legal: proof: c4 a5 g4 f5 e4 fxe4 d4 h5 b4 hxg4 c5 axb4 d5 c6 Bb5 cxd5 c6 d4 c7 Rh6 Ba4 Rh8 Bc6 bxc6 Kd2 d5 h4 Kd7 f4 e5 a4 g5 a5 e3+ Kd3 e4+ Kc2 d3+ Kb3 d2 Kc2 e2 a6 e1N+ Kb2 g3 h5 b3 Kc3 b2 Kd4 g2 a7 g4 f5 e3 f6 e2 f7 Rh7 Ra4 Nd3 Ra6 e1B Rh3 Bg7+ Ke3 Ne7 f8B Ne5 Kf4 Qe8 Ne2 g1B Qa4 d1N Qd4 Bb4 Rh1 Ba3 Nbc3 b1Q Ra4 Qbg6 Be3 Nb2 Ne4 Qef7+ Nf6+ Kd6 Qd2 Be6 c8R Nbd7 Rc4 Rb8 a8Q Rb5 Ba7 Bd4 Rd8 Kc7 Rhc1 Nc8 Ng1 Bc3 Be7 Nf8 Rd6 Bh8 Ke3 Rg7 Ng8 Qh6+ Bg5 Rh7 Bb8+ Kb6 Qa5+ Kb7 Qd3 d4+ Ke4 Bd2 Bd8 Bg5 Qe2 Bgf6 Bdc7 Bfg7 Qee1 Neg6 Ba7 Ne5 Rc5 Ba2 R5c4 Rd5 Qf2 Rb5 Qf5 Bf6 Qf4 Qfg6+ Qf5 Re7 Bc5 Qf7 Qd7 Bfg7 Ba7
1n5R/2Qqbp1r/p2qbnRp/p1P4r/3BBq2/Nr1R4/K1n1Q3/5kN1 b - - 0 1 legal: proof: d4 e5 e4 g5 h4 gxh4 f4 exf4 a4 b6 a5 bxa5 d5 c6 Bc4 cxd5 Ba6 dxe4 Bf1 e3 g4 Ke7 b4 Kf6 c4 Kg5 c5 d5 b5 h6 b6 e2 Kd2 e1N Kc3 h3 Kb2 Kh4 g5 Kg3 g6 Kf2 b7 h2 g7 d4 Ne2 a6 Nbc3 d3 Ra3 f3 Ra2 d2 Nb5 Nc2 Bg2 Qd6 Rg1 h1R Ra3 Be6 Rd3 Nf6 g8R Rh7 Rh8 Rh5 Na3 Be7 Bh1 Ra7 Rg6 Qd7 Kb1 Qd6 Bb2 Qd7 Qc1 d1Q Bd4+ Kf1 Ng1 f2 Kb2 Ra8 Qf4 Qd2 Qc7 Qf4 Bf3 Qfd6 Kb1 Ke1 Bc6 f1Q Be4 Qff4 Kb2 Kf1 Kb1 Nc6 b8Q Ra7 Qb2 Rb7 Qb5 Nb8 Qb2 Rb3 Ka2 Ne1 Qh2 Nc2 Qe2#
B1KB4/2N4r/p2r1n1R/3Nr3/6Pr/p2R1Q2/p1nqprbk/n1bQ3N b - - 0 1 illegal: No proof kernel
R1nbBN1Q/q3qr2/p1K5/1N4Bb/1P2p2R/3pk1n1/p3rn2/2N2bQn b - - 0 1 legal: proof: d4 f5 a4 c5 a5 cxd4 a6 bxa6 Nf3 a5 Ng1 a4 h4 g5 e4 gxh4 c3 dxc3 Rh3 fxe4 Rh2 Qb6 Rh1 Qd8 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kc5 d5 b4 e5+ Kb5 h5 f4 d4 g3 h3 Be3 a3 Qc2 d3 Qf2 h4 Bc5 a2 Be3 a6+ Kc4 h2 Qe2 c2 Ba7 c1N Qf3 h3 Bg2 e3 Nd2 e2 Ne4 e1Q Nc3 e4 Bc5 Qe7 Kd5 Ra7 Qf1 Nh6 Be3 Ne2 Nb5 Nd7 Bf3 Qf2 Rc1 Nb6+ Kc6 Ng4 Rc4 Rh5 Rd4 Be6 Rd8 Bf7 Ra8 Nc8 Qa1 Rh7 Qh8 Bh5 Bc1 Qd4 Bd2 Nf2 g4+ Ke6 g5 Kf5 g6 Ng3 g7 Rd7 g8Q Qa7 Nc7 Rf7 Nb5 Rc7+ Kd5 Bh6 Ne2 Bg5 Nc1 Rc2 Be3 Rb2 Kc6 Bh4 Bd1 Re2 Ba4 Bg5 Qgg7 Kg4 f5 Kf3 f6 Bh4 Rf1 h1B Bg5 Bg2 Rh1 h2 Qgg8 Bf1 Qg6 Rh7 f7 Rg7 f8N Rf7 Rg1 h1N Qgg7 Nf5 Rg4 Nfg3 Qd4 Nd1 Qg1 Ndf2 Rf4+ Ke3 Bb3 Rd2 Be6 Rb2 Bd7 Re2 Be8 Qe5 Bh6 Bd8 Bg5 Qee7 Rh4+
1N1qR2K/1p1Nn3/7p/2qn3R/n2r3p/1BQP1b2/1Qpq3R/bBkr2n1 b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Ba3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 c5 g4 f5 d3 a2 g5 h6 g6 f3 g7 c3 a5 c4 a6 c2 a7 Kb3 Qe1 Kb2 Qd1 c1N Nd2 c3 Bg2 c2 Ne2 f4 Qf1 f2 Bh3 f3 Nb3 Ne7 Kf6 Na6 g8B Nc5 e5 Bg4 e6 Na4 Qe1 f1N Nc5 f2 Nd4 Ne3 Rh2 Bf3 Nc6 f1Q Nd7 Ne2 Ncb8 Ng1 Qd2 Qb1 Qc3+ Kc1 Bf5 Rh7 Be4 Rg7 Bd5 Rg4 Bb3 Rc4 Kf7 Rd4 Kf6 N3d5+ Kf7 Nc8 e7 Bg7 e8R Bh8 Kg6 Nce7+ Kh7 Kd1 Nc5 Qc1 Ncd7 Bf6 Rb1 a1Q Ba2 Bg7 Rb5 Qd2 Bb1 Qa3 Ra5 Qc5 Be6 Nc7 Bb3 Kc1 Rb5 Qb4 Rh5 Ncd5 Qc6 Be5 Qf6 Qc5 Kh8 Re4 Qg7 Ba1 Qc3 Re1 Nc6 Rb8 a8Q Rd1 Qa6 Rc8 Ncb8 Rc6 Qa5 Rf6 Qa7 Rf4 Qa6 Rd4 Qaa5 Nb2 Qa2 Na4 Qab2+
2Q5/b3P2k/b2Nr2Q/B2Q1rn1/pR1bb1Kp/pp3R2/4B3/Nnbqb3 b - - 0 1 illegal: No proof kernel
b3K3/bQ1p2p1/3r3Q/4Q1P1/1b1Rpkbp/1Bpq3r/2n2b1n/2NRB2N b - - 0 1 legal: proof: c4 f5 e4 fxe4 b4 b5 d4 bxc4 h4 a6 d5 c3 b5 axb5 h5 Ra6 d6 Rxd6 h6 Rd2 Nh3 Nxh6 Ng1 Ng8 a4 Kf7 f4 Kg6 g4 e5 f5+ Kg5 a5 c5 f6 h5 f7 b4 a6 b3 a7 c4 a8Q e3 Ne2 c2 Ra4 b2 Nec3 e2 Kf2 e1B+ Ke3 Bb7 Rg1 Qc8 Qe2 Nf6 Na2 c3 Rd4 Bb4 f8Q Qc4 Qd6 Na6 Qc6 Rd1 Nd2 b1B Qac8 Ba8 Q8b7 Rh7 Kf3 Bf2 Ne4+ Kg6 g5 Kf5 Be3 c1B Bd2 Ng4 Be1 Bce3 Nc1 Qd3 Qh6 Ba2 Rh1 Be6 Bh3 Ba5 Rf1 Nb4 Bg2 Nc2 Bh1 Bg3 Nf2 Bb4 Bg2 Rh8 Nh1 Bgf2 Bh3 Bg1 Bg2 Nh2+ Kg3+ Bgf2+ Kh3 h4 Bd5 Rf8 Bb3 e4 Qf3+ Bf4 Qg3 Bb8 Rg1 Nf3 Qd6 Ba7 Qdd5+ Kf4+ Qf5+ Ke3 Kg4 Nh2+ Kh5 Rf6 Qa5 Rf3 Kg6 Rh3 Qe5 Bg4 Kf7 Rd2 Ke8 Kf3 Qc5 Kf4 Qe5+ Ke3 Rd5 Qf1 Rd6 Rd4 Bd2+ Kf3 Rd5 Qd3 Rd6 Rd5 Rd1 Rd4 Be1 Ke3 Rc6 Rd6 Rc4 Kf3 Rd4 Ke3 Qc5 Kf4 Qe5+
1b4r1/r1Bk1p2/6BQ/2bp4/1pn3br/3K2N1/1rnpPpRR/Q3NRq1 b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kd2 d5 g4 h5 c4 b5 c5 a2 c6 h3 c7 b4 g5 h2 g6 f3 g7 f2 Bg2 h4 Bh3 d3 Be6 h3 Qe1 Ne7 g8R Nbc6 Bg4 Ne5 Nc3 N7c6 Qf1 Qg5+ Kd1 d2 Kc2 Ra7 Rg7 Nc4 Bh5 Bg4 Bg6 Kd7 Kd3 Bc5 Nf3 Rg8 Ne4 Nd4 Bb2 Nc2 Rc1 a1B Be5 Bad4 Ne1 Bd6 Ng3 B4c5 Rg1 h1R Rg2 h2 Rh7 Rg1 Rh4 h1R c8Q+ Ke7 Qa6 Bb8 Rb1 Kd7 Bc7 Rh3 Rh7 Rh4 Rc1 Rgh1 Qa1 R1h3 Qh1 Qh6 Bf4 Rh5 Nf3 Rh2 Qe1 Rh1 Bc7 Rg1 Qf1 Rhh1 Qe1 Qh2 Rh3 Rf1 Qh8 Qg1 Qh6 Rh2 Ra1 Rh1 Qc1 Rh2 Qa3 Rb1 Rh4 Rb2 Rf1 Rh3 Ne1 Rh1 Qa1 Be6 Rf4 Rh5 Rh4 Bg4 Rh3 Rh4 Rhh2
1q1N1Q1R/k2pbn1n/p3bpR1/rQ1np3/4pqP1/1B1B2N1/1Kp2r2/3B4 b - - 0 1 illegal: No proof kernel
2qbR1rb/8/k2bN2b/n4rB1/1r1r1Nn1/K1N3n1/3P1RNq/1b4BQ b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 h4 gxh4 b4 a5 b6 c3 e3 a4 b7 a3 b5 Bxb7 Bd3 a2 Bf5 Ba6 Bc8 Bxc8 g4 Kd7 b6 Kc6 b7 Kb5 g5 h5 g6 f5 e4 c5 e5 c4 e6 c2 e7 h3 e8N h2 g7 h4 Qe2 h3 Qe3 f3 Qf2 c3 Qg3 f4 Na3+ Ka6 Nc4 f2+ Ke2 f1R Nb2 f3+ Ke3 f2 Qf4 Bf5 Na4 Nc6 b8B Nf6 g8N Rh4 Nb6 Na5 Ne2 Bh6 Nd5 Ng4+ Kd4 Qc8 Rg1 h1Q Ne3 h2 Bb2 c1B Rg2 Bb1 Qe4 c2 Ng7 Re1 Kd5 f1R Bd4 Ba3 Ne7 c1B Ng6 Be7 Bf4 Bd8 Nc3 Ba3 Bg5 Bd6 Ne6 Rf8 Ba7 Rf5+ Kd4 Rg1 Ngf4 Rb8 Rf2 Qg2 Bc5 h1N Qd5 Qh2 Neg2 Ng3 Ba7 Bc2 Re1 a1B Bb6 Bb1 Qc6 Be5+ Kc5 Bb2 Kb4 Bd6+ Ka4 Ba1 Qf3 Rb7 Bc5 Rb4+ Ka3 Rd4 Re4 Rb4 Nb5 Bh8 Nc3 Re1 Re5 Ree4 Qd1 Red4 Qh1 Rh3 Ng7 Rh5 Re8 Rf8 Nge6 Rg8 Bf6 Rhd5 Bg5 Rf5 Rf3 Rd3 Bg1 Rdd4 Rf2
5rB1/qnN3n1/1n5Q/1rk2qqb/2P2N1R/qB3R2/3q1nBr/1Bb1nK2 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 e4 Ke7 c4 Kd6 g4 b5 g5 f5 g6 h5 a5 f3 e5+ Kc5 a6 d5 g7 a2 e6 h3 e7 f2+ Ke2 f4 e8B h2 a7 d3+ Kd2 d4 Na3 h4 Bf7 h3 Rc1 a1N Be8 f3 Qc2 b4 Bf7 b3 Be6 b2 Rd1 b1R Qa2 Nc2 Qb2 Nh6 g8B Ne1 Bf5 Nf7 Be4 Bg4 Bb7 Bh5 Qc2 Nd7 Nb5 Nb6 Qb3 Nd6 Be2 f1Q Qb2 f2 Be4 Nb7 Rc1 Bh6+ Kd1 d2 Nd6 Qg5 Bg2 Rf8 Nf3 Qg1 a8B f1Q Nh4 Qff5 Qa1 Rb5 Nf3 Q1e3 Bef1 Qa3 Ke2 d1N Rc3 Ne3 Ne8 d3+ Kf2 d2 Nc7 d1Q Be2 Qda4 Bd1 Qa7 Qc1 Rh7 Bb3 Rh8 Rf1 h1Q Rd3 h2 Rd4 Rh7 Rh4 Qg1+ Ke2 h1N Qd2 Nf2 Qc1 Nd6 Be4 Nb7 Bb1 Qh2 Qd2 Qd7 Qc1 Nf5 Qf4 Ng7 Qd2 Ng4 Nd4 Qdf5 Rf3 Nf2 Kf1 Qhf4 Qc1 Qd2 Nde6+ Kc6 Qb2 Qge3 Qd4 Qdb2 B3a2 Bg4 Qd2 Qc1 Nd8+ Kc5 Bb3 Bf4 Rh1 Rh3 Qc3 Bh5 Qf6 Qe7 Qe6 Qeg5 Qh6 Qc3 Rh2 Bc1 Rh1 Qcd2 Nde6+ Kb4 Nf4 Rh4 Rhh3 Kc5 Rhg3 Rh3 Rg4 Rh2 Rh4
2bRBRr1/pBP1nn1n/1r2rN2/k7/5qr1/NQN1q1rr/N1K5/b5b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 Kd2 d5 b4 Kd7 h4 Kc6 e4 Kb6 c4 f5 b5 g5 e5 d3 c5+ Ka5 e6 f4 c6 f3 c7 d4 b6 a3 h5 g2 b7 a2 e7 f2 e8B g3 h6 g4 h7 Ne7 Rh3 Nbc6 b8N Ne5 Bf7 Qe8 Bc4 Nf7 Nf3 g1R Na3 g2 Qe1 g3 Kc1+ d2+ Kb2 d3 Rb1 a1B+ Kb3 Rg8 Nd7 Rb8+ Bb5 Rb6 Qe2 d1R h8N d2 Ng6 Re1 Nf6 d1R Qb2 Ree6 Nf4 Rd3+ Kc2 Rb3 Bfd3 f1Q Nd4 Rh1 Bc6 g1N Ndb5 g2 N4d5 Nf3 Be4 g1R Rh8 R1g4 Ndc3 Rh3 Rd1 N3g5 Rd8 Nh7 Na2 Rbg3 Qb3 Qf4 Nbc3 Bg7 Bb7 Bf8 Bec6 Bg7 Nh5 Bd4 Nf6 Bg1 Bb5 Qf8 Bd7 Q8h6 Be8 Qe3 Nd7 Qhf4 Nf6 R8g7 Rf8 R7g5 Bec6 Rg8 Be8
N3b2b/R2N2P1/Q1K1b2N/1Bb1p3/1q1k3p/R1q1brr1/nr3qN1/B2n4 b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 h4 g5 e4 gxh4 a3 bxa3 Be3 fxe4 Bh6 Ra7 Bc1 Ra8 Ke2 Kf7 g4 Ke6 f4 Kd5 f5 h5 c3 b5 g5 b4 f6 e3 Kd3 b3 g6 a2 f7 e2 Rh2 e1B Rh1 b2 Bf4 h3 Bg5 h4 Qh5 h2 Nd2 b1R Qh7 Qb6 Be3 Nh6 Qg8 Bf2 Ne2 Nf5 Bf4 Na6 Be3 Rb2 Qh7 Qb4 Nf3 Rg8 Rb1 a1B Rg1 h1Q Qg7 Qg2 Ng3 d6 Rd1 Be6 c4+ Kc5 Ke4 d5+ Ke5 Qc3 Bf4 Nb4 Qh6 Be3 Rd3 Qf2 Ne1 Na2 Ng2 Ra3 Bg5 Qb4 Bf6 Rg7 Rb3 d3 Rc3 d4 Ke4 Ra7 Ra3 d2 Be2 d1Q Rf1 Kc6 c5 d3+ Bd4 Kb5 c6 Kc4 c7 Qde1 c8N Qec3 Rh1 Rd7 Ra7 Rd5 Rh3 Ra5 Bf6 Ra3 Nb6+ Kc5+ Nc4 d2 Bd3 Qa5 Nb6 d1B Na8 Ba4 Ba6 Be8 Bb5 Nd4 Be5 Ne2 Nf5 Rg8 Bg7 Qcb4+ Ke5 Nec3 Bf6 Nd1 Rg3 Bg7 f8N Bh8 Rf3 Rg7 Rh3 Rf7 g7 Rd3 Qg6 Qaa3 Nh6 Qab3 Bg5 Rf3 Bf6 Rg3 Ba4 Kc4 Nd7 Q3c3+ Ke4 Bc5 Bd4 Rdf3 Bc6 Bg4 Qf6 e5 Bb5+ Kb3 Kd5 Be6+ Kc6 Kc2 Ba4+ Kd3 Bb5+ Ke4 Be3 Re2 Bd2 Kd4 Bc1 Bb2 Qg6 Ba3 Bb2 Rc2 Ba1 Bc1 Rh1 Bg5 Re1 Rb2 Re3 Qcc4 Rea3 Be3 Qc2 Qbc3 Qa4 Q4b4 Qa6
Q1BnB1br/Nq1p1Rn1/3P3b/2p3kq/r7/1NNb2K1/Rnn1Nn2/5r2 b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Ba3 axb5 Be7 bxc4 Bh4 c3 Bg3 fxg3 h4 Ke7 d4 Kf6 e4 g5 a4 c5 a5 b5 a6 c2 a7 c1N h5 g2 Kf2 g3+ Kf3 g4+ Kf4 b4 h6 b3 d5 b2 d6 Qe8 h7 Nd3+ Ke3 Nh6 e5+ Kg5 e6 f5 e7 f4+ Ke4 f3 Ne2 g1R Ra3 f2 Nd4 g2 Rh3 g3 Kf3 Nc6 Qa4 Nf5 Nc3 b1N Nd5 Bb7 Nc3 Ng7 Nf5 Nd8+ Qe4 Nb2 Ba6 f1B Nd4 Bd5 Bc8 Bd3 Ra2 Na3 Nb3 Bg8 Rh1 Rc1 Rf1 g1Q Rf2 g2 Kg3 Qf1 Rf7 Qh1 Qb7 g1N Qc6 Rb8 a8N Rb4 Nc7 Rf1 N7b5 Nh3 Na7 Nc2 Qa8 Qe4 Rf2 Qh5 e8B Ra4 Rf3 Bgc4 Rf6 Nf2 Rf7 Rg8 h8N Qb7 Ng6 Rh8 Nf4 Bd5 Rf6 Bg8 Nfe2 Nge6 Ra3 Bh6 Rf7 Ng7 Ra2
4n1Br/b6P/1p1R2b1/pqN1K2R/n1QNn1bq/n3N2k/Brr1Nq2/8 b - - 0 1 legal: proof: b4 e5 d4 c5 f4 cxd4 a4 exf4 g4 h5 b5 hxg4 a5 Bc5 b6 Bd6 Bd2 axb6 a6 Bf8 Ba5 bxa5 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 c4 Kh4 c5 g5 e3 d5+ Ke5 f5 h3 f3 a7 d3 e4 d2 c6 f2 c7 g3 Qe2 d1B Qd3 d4 Be2 f1N Nc3 f4 Bh5 g2 Be2 f3 Rc1 f2 Bg4 Bf5 c8N Nd2 Qc2 f1Q Nd5 d3 Nb4 Nb1 Qb3 d2 Qa2 Na6 Rh2 Nc7 Nb6 Ne8 N4d5 Na3 Ne3 Rb8 a8B Ngf6 Qc4 Bg6 Nd7 Bc5 Be6 g4 Bg8 g3 Ne2 Ba7 Nc5 g1R Rb1 g2 Rb6 Rc8 Rd6 b6 Bad5 Rh1 Bde6 g1Q Bef7 Qgf2 Bd5 Kh5 h4 Rg1 Rh1 Rg2 Rh2 Qh1 Bdf7 Qd7 Be6 Qb5 Bd5 Kh6 h5 Kg5 h6 Qhe1 h7 Qh4 Nc3 Bg4 Ne2 d1N Rh1 Nb2 Rh3 Na4 Bde6 Qhf2 Rh1 B6f5 Rh5+ Kg6 Bd5 Qh4 Bde6 Qef2 Qc2 Rg1 Kd4 Rb1 e5 Rb2 Ne4 Bf3 Ba2 Ng7 e6 Rc6 e7 Rc7 Qb3 Rcc2 Ng3 Be2 e8N Bd3 Nc7 Ne8 Qc4 Be2 Rg5+ Kh6 Ne6 Bg6 Rgd5 Beh5 Ne2 Bf3 Ke5 Kh5 N4c5 Ne4 N6d4 Kg5 Nf1 Kg4 Ne3+ Kh3 Ke6 Bfh5 Rg5 Bf3 Rh5 Bg4+ Ke5
1b1K2RB/Q2N1b2/q7/1br1nR1k/1q1N1pn1/1bP2b2/2bp4/B1BB2rn b - - 0 1 illegal: No proof kernel
1Nq5/2n4n/N1N1pq1k/3b4/p1rBQ1Pq/B2K1Rb1/3b2bR/n3q1rN b - - 0 1 legal: proof: d4 c5 f4 cxd4 e4 b5 a4 bxa4 g3 g5 f5 h5 e5 h4 f6 h3 Bg2 hxg2 e6 fxe6 Na3 e5 Nb1 Qc7 f7+ Kd8 Ra3 e4 Ra2 Bh6 f8B Ke8 Ra1 Qb6 Bg7 Qd8 Be5 Bf8 Bef4 gxf4 Kd2 Kf7 h4 Kg6 b4 d5 c4 a5 c5 d3 h5+ Kh6 g4 f3 b5 a3 c6 d4 c7 a4 b6 e3+ Ke1 a2 b7 e6 Rh4 Nf6 Nc3 Na6 b8B Bd6 Rh3 Nh7 Ba3 e2 Kd2 e1Q+ Kc1 d2+ Kc2 f2 Rh2 f1Q Qf3 Bb7 c8N Qdh4 Na7 Bd5 Ncb5 Bg3 Nh3 g1B Nf2 Nc7 Nh1 Be3 Qe4 Qff6 Kd3 d1B Nc6 Bf3 Ba7 Rac8 Nb8 Bg2 Rb1 a1N Rb3 Bd2 Bb6 Ne8 Nc7 Qc1 Nca6 Rc4 Bbc5 Nc7 Rc3 Qb2 Ba7 Qb7 Rb3 Qc8 B7c5 Kg5 h6 Rd8 Rc3 Rd6 Rb3 Rb6 Rc3 Rb1 Ba7 Rg1 Rb3 Nf8 h7 Kh6 h8N Nh7 Ng6 Bc3 Ke2 d3+ Ke3 d2 Ne5 d1Q Nec6 Bb4 Bd4 Qe1+ Kd3 Bd2 Rb1 Qef2 Rf1 Qe1 Rf3
n7/2PN1n2/K1B1rn2/bBQRr1b1/2p1q1p1/1N3NN1/3p4/1rkbn1Rn b - - 0 1 legal: proof: c4 h5 d4 e5 f4 exf4 g4 hxg4 b4 c6 b5 c5 b6 axb6 Ba3 cxd4 c5 Qe7 c6 Qd8 Bc5 bxc5 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 h4 Ke3 a4 f5 h5 d5 h6 g5 c7 c4 h7 f3 a5 f4 a6 d3 a7 g3 Ra5 d4 Nh3 g2 Qc2 g1B Qc3 f2 Qc1+ d2 Ra6 f3 Qb2 d1N Ra2 d3 Qg7 Qd5+ Kb6 Nh6 Qe5+ Qe4 Ra4 Nb2 Qc3 Be7 Kb5 Bg4 Kb6 Re8 h8N Nf7 Ra3 Nd7+ Ka5 b5 Nf4 b4 Qe1 b3 Rh5 Nf6 Bh3 f1N Ka6 f2 Qa5 Na4 Nd2 b2 Bg2 b1R Nhg6 Nb6 Nh4 Ng3 Nb3 f1N Ra1 Nh1 Nf3 Nh2 Qb4 Rad8 a8N Rd6 Qa5 Re6 Qa3 Nbd7+ Nb6 Bf2 Qd6 Be1 Qc6 Ba5 Qd5 Rb2 Rg1 Rb1 Qb5 d2 Qf5 Kf2 e3 Bd8 Qc5 Re5 Ne2 R8e6 Ng3 Be7 Nfd4 Bd1 Nf3 g4 Rf5 Qd4 e4 Ke3 Qb4 Kd3 Qc5 Kc2 Rg5 Rf5 e5 Qe4 Nh4 Nf3 Rh5 Rd6 e6 Ne1 Nf3 Re5 Rf5 Bd8 e7 Rde6 e8B Kb2 Na1 Kc1 Rg5 Nd5 Rf5 N7f6 Bb5 Re7 Nd7 Nb6 Rh5 R5e6 Rd5 Re5 Bf1 R7e6 Bd3 Be7 Bc2 Bd8 Bca4 Na8+ Bc6 Nh7 Bb5 Bg5 Nh5 Nf6 Nb3+ Kb2 Ng3 Kc2 Na1+ Kc1 Nb3+
5rNK/r1Q2B1b/4Nnp1/3ppkb1/2nq1RRb/PB4q1/1BB1r3/6bn b - - 0 1 illegal: No proof kernel
8/3p2PN/b2q1r1n/br2Rq1r/k2pn2p/qQq1Rn2/4R1K1/1N2R1BB b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 h4 g5 f4 exf4 a3 bxa3 Qd3 gxh4 Qd2 Na6 Qd1 Nb8 Kf2 b5 c4 h5 e4 f5 g4 f3 c5 b4 c6 b3 e5 f4 e6 h3 g5 h2 g6 b2 e7 h4 g7 a2 c7 Rh5 Qe1 Ra6 Na3 b1R Be2 Rf6 Nc4 Rbb5 Bf1 Ba6 c8R Nh6 Be3 Nc6 Bh3 Ne5 Rb8 Qc8 Kf1 f2 Rb7 Nf3 Rb1 a1Q Rd1 Qa3 Kg2 f1N Qe2 N1d2 Qd3 Ne4 Nd2 Qcc3 Nb1 Kf7 e8R Bb4 Re5 Ba5 Be6+ Ke7 Re1 Kd6 Nh3 Kc6 Bd5+ Kc5 Rc7+ Kb4 Re2 Ka4 Rhe1 Qd6 Bg1 h1Q+ Kf1 Qh2 Ng5 Qg3 Nh7 Qca3 Rec1 Qe1+ Kg2 Qec3 Rce1 Nfg5 Rb7 f3+ Kh1 f2 Kg2 Nf3 Re3 Rc5 Rb2 Rb5 Rbe2 f1Q+ Kh1 Nfg5 Ba8 Qf4 Kg2 Nf3 Bb7 Qf5 Qc4+ Bb4 Qb3+ Ka5 Bh2 Neg5 Bg1 Nh2 Qb2 Ka4 Kh1 Ba5 Bg2 Nhf3 Qa2 Nd2 Kh2 Nge4 Bh1 Nf3+ Kg2 Qb6 Qb2 Qbd6 Qb3+
1n3r2/1r4N1/2bnR1r1/4p1bK/2P5/1kN2Bpb/Q2b1BpR/b2bB1Bq b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 g4 h5 e4 fxe4 a3 bxa3 Kd2 hxg4 Ke2 Nf6 Ke1 Ng8 f4 Kf7 Kf2 Ke6 Kg3 Kd5 h4 e5 c3 g5 f5 b5 h5 d3 h6 Kc4 h7 d5 f6 a2 f7 b4 Ne2 b3 Ba3 d4 Rg1 b2 Rg2 e3 Nf4 e2 Be7 e1B+ Rf2 Nf6 Ng2 Ne8 Qf3 Bd2 Qf4 Bh6 f8B Rg8 h8B Qd5 Ba3 Rg6 Ne3+ Kb3 c4 Qh1 Bfc5 Nd6 Nc3 b1R Bg2 Bd7 Ba7 Bc6 Bf3 Rb2 Rg1 a1B Bb4 Rb1 Nf5 Rb2 Rh2 Rb1 Ng7 Rb2 Kf2 g3+ Kf1 g4 Qe4 Bdg5 Qe2 d2 Bbc5 d3 Bf2 d1B Ke1 Rb1 Qa2+ Kb4 Kf1 d2 Bab6 Bc2+ Ke2 Bf5 Rd1 g2 Be1 Ne4 Bg1 Nd6 Kf2 Rb3 Kg3 Rb2 Rb1 d1B Bef2 Bd2 Kh4 Bhg5+ Kh5 Bc8 Ne8 B8d7 Bf6 g3 Bd8 Rb3 Ng7 Bh3 Bdb6 Rb2 Be1 Rb3 Qc2 Ka3 Bbf2 Rb7 Rb4 Bde3 Qe2 Bd2 Ra4+ Kb3 Ra7 Rf7 Re7 Ra7 Re6 Rab7 Qe4 Rf8 Qc2+ Ka3 Qa2+ Kb4 Qa6 Kb3 Qa2+
2Nqb2r/b2kR3/4pr1n/2P4p/3B2r1/1pK1B1pQ/1R2Rn2/R1b1Nnq1 b - - 0 1 illegal: No possible last move
b1NbQ2K/n1q1N3/1r1B4/b2p2N1/1p1nrNb1/1p1Bk3/b4pP1/r2R3R b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 Bd2 gxh4 Be3 h3 Bc1 h2 Nf3 Qa5 Kd2 Qd8 Qe1 Bg7 Qf2 Bf8 Qg1 hxg1B Kd1 Bd6 Ke1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 e4 h5 c4 f5 a4 d5 a5 d3 a6 h4 a7 d2 Nd4 d1B Rh2 h3 Nc3 f3 Bd3 f4 Nce2 f2 Nc2 f1B Ned4 f3 Rh1 h2 Bb2 Bb7 Bc1 Ne7 Kf6 Nbc6 e5 Rh4 e6 Qc7 Bf4 Rb8 a8N Na7 Nc6 Nf5 e7 Nd4 e8Q Be7+ Kg7 Bd8+ Qd7 b3 Rb1 b4 Ne7 Bf2 Be5 Re4 Kh8 Bh4 Bf4 f2 Ne1 Bg4 Qe8 Bc6 Rd1 Rb6 Nf3 Bb7 Rg1 h1R Ng5 Bfe2 Rgf1 Bf5 Rg1 Beg4 Rge1 Ndc6 Rg1 Kd4 Bd6 Ke3 c5 Nd4 c6 Qc8 Nc7 Ba8 Nce6 Qc7 Nf4 Bh7 Rd2 Bg3 Rc1 Re1 Rc4 Ra1 Rd1 Bgf5 Bf1 Re6 Neg6 Rb7 Rb1 Bg4 Nfh3 Qb6 c7 Nab5 c8N Na7 Bb8 Bgc7 Nge7 Qc6 Rbc1 Ba5 Nf4 Bb1 Bd6 Ba2 Bd3 Rb6 Rh1 Qc7 Rcc1 Re4 Rcd1
3N1R1R/pRn3K1/8/1n2n1bb/qp3Bqp/PpR1Q1N1/q1n5/1rBr3k b - - 0 1 legal: proof: c4 e5 b4 d5 f4 exf4 h4 dxc4 e3 c5 h5 cxb4 h6 gxh6 Bd3 h5 Bc2 h4 Bb3 cxb3 Ke2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 d4 h5 g4 f5 a3 h3 e4 Kh4 d5 Kg3 g5 Kg2 g6 f3 d6 b2 d7 b3 g7 b4 Ke6 h2 Kf7 f4 e5 f2 e6 f1Q e7 f3 e8R f2 Qd4 Be7 Bh6 Nc6 Bg5 Qd1 Bd2 f1N Bc3 Ne5+ Ke6 Ne3 Be1 Nc2 Ne2 Nf6 Nbc3 b1N Nb5 Nd5 g8R+ Bg5 Nc7 Nbc3 Qe3 Nb5 Re7 Qe8 Rc1 h4 Rf1 h1Q Ng3 Qh2 Bd2 Qg4+ Rf5 Ba6 d8B Rc8 Rf8 Rh7 Rh8 Rf7 Rf1 Rb8 Rf3 Rg7 Bc1 Rb7 Na8 Rd7 Bc7 Rd8 Bd6 Qc6 Rb7 Rf7 Nh5 Kh1 Nc7 Rfd7 Rb6 Bc8 Rb7 Qa6 Rh3 Qa4 Ng3+ Kg2 Qd4 Qf3 Ne2 Qg1 Bd2 Ng6 Rg3+ Kh1 Qc3 Qb1 Rff8 Qa2 B6f4 Ne5 Qc5 Qg2 Rc3 Qg3 Kf5 Qf3 Ne6 Ndc7 Qe3 Rd5 Rhg8 Bd7 Rh8 Be8 Rh5 R8d7 Rhh8 Bh5 Nd8 R7d6 Bc1 Rd2 Bb2 R6d5 Nc1 Rg2 Ne2 Rg1 Ng3+ Kg2 Rc4 Rb1 Bc1 Rd1 Rc5 Bh6 Kf6 Bg5+ Kg7 Qg4 Rc3 Kh2 Nf5+ Kh1 Ng3+
4Q3/2p2kp1/1bRN1br1/N3R2r/1R2Ppq1/n1KBn2b/r3pnp1/2RB4 b - - 0 1 illegal: No possible last move
1N1nK1B1/5p2/1Rpr2b1/1q6/Pbr2qp1/Np1N2pB/Nq1q1Q2/4Rnk1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 Ke7 a4 Kf6 d4 Kf5 Kd2 Kf4 e4 g5 d5 b5 e5 g2 d6 Kg3 Ke3 c3 Kd4 Kf2 Kd5 c2 d7 c1Q h5 b3 e6 b2 h6 b4 h7 g3 e7 b3 e8B g4 Qd4+ Qe3 Ne2 g1Q Rh6 Nc6 Bh3 Bb4 Na3 b1Q Nc3 Qgf1 Na2 Qb2 Re1 Kg1 Qd2 Qdf6 d8N Ra6 Bd7 Qff4 Bf5 Qef2 Rd6 Nh6 Bg6 Rf8 h8N Bf5 Bh7 Bg6 Bg8 Nf5 Qe3 Re8 Qb6 Re4 Qa7 Ncd4 Rb6 Ne6 Kc6 Ne3 Kd7 Qfd2+ Ke8 Rc4 Nc6 Nd8 Nb8 c6 Qe7 Ra7 Qc5 Rd7 Qf5 Rd6 Qc5 Bf5 Ng6 Bd3 Ne5 Bg6 Rc1 Qh2 Nd3 Qhd2 Ne1 Qfd3 Qf5 Qd5 Nd3+ Nf1 Re1 Qb5 Qf6 Qfd4 Qf3 Q4f4 Qf2+
4B3/1Np2p2/2B3R1/1qnN2nP/2Q2nnq/Q1rnNB1k/3K1p1r/b7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c3 exf4 c4 dxc4 b4 hxg4 b6 a5 b5 Ba6 bxa6 a4 Ra3 Bxa3 Bb2 Bf8 Bf6 a3 Be7 Qd4 Bd8 Qxd8 d4 Kd7 h4 Ke6 e4 g5 b7 c3 e5 Kf5 e6 f3 d5 g3 a7 Kg4 d6 a2 d7 a1Q e7 g2 e8B c2 Nh3 g1N Bd3 c1N Nf4 Na6 b8Q Qb2 Qc2 f2+ Kd1 Bg7 Ne6 Nc5 Qc3 Nf3 Nf4 Nh6 Nd5 Qb5 Rg1+ Kh3 Qa3 g4 Be4 g3 Nd2 g2 Nc4 N1d3 Nce3 Ng5 Kd2 Ng4 Bf3 Ba1 Qb7 Rb8 Qba6 Rb6 a8B Rc6 Bb7 Qe7 d8N Qe4 Rd1 g1N Rf1 Ne2 Rg1 Qea4 Ba8 Nef4 Nb7 Nd7 Rg2 Rc3 Qc6 Rh6 Qc4 Rh7 Nc5 Qab4 Bc6 Rh5 Nb7 N7c5 Rg1 Nh2 Qa6 Nfe6 Qca2 Nh7 Be4 Rg5 h5 Rg2 Bg6 Qh4 Q6a3 Nef4 Be4 Nf3+ Kd1 Nfe5 Kd2 Rh2 Rg6 Ng4 Bf3 Ng5 Qc4
r2qRR2/2r2nr1/r3qb2/Qn1NB1Q1/1KbBP2q/3q4/Q3Rk2/r4q2 b - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 b6 e4 Bh3 axb6 Nd2 b5 Bg4 hxg4 Ndf3 exf3 Be3 b4 Bd2 Ra5 Bc1 Ra8 Kd2 Ke7 a4 Ke6 c4 Kf5 h4 Ke4 c5 d5 e3 f5 h5 b5 h6 f2 g6 f1Q g7 d3 c6 f3 c7 f2 a5 d4 h7 b3 a6 b4 a7 f4 Ra3 g3 Rh2 b2 Qe1 b1R Nf3 g2 Ra6 g1R Bb2 b3 Nh4 f3 Rh1 Nc6 Ra5 Be6 c8R Ra1 Qb1 Bc4 Rh3 Be7 Rb5 Bf6 Bc1 b2 Qa2 b1Q Qa4 Qa2+ Qc2 Nh6 g8Q Nf7 Qf8 Rg7 Rbb8 Qh1 Rc7 f1Q Bb2 f2 Nf5 Qfb1 Qc1 f1Q Qb4 Re8 h8B Re7 Rcb7 Rc7 Ne7 Qa6 Rg3 Qh4 Nd5 Qb6 Rf3 Ra6 Qa5 Qa2 Rf5 Qab3 Re5+ Kf3 e4 Kf2 Re8 Qa3 Ba1 Qad6 Qa2 Qb1 Rb3 Qe6 Ra3 Qb3 Qd1 Qb1 Qg4 Qb5 Qg5 Qe2+ Kc1 d2+ Kc2 Qf1 Rf8 d1R Re3 Rb1 Kd2 d3 Bd4 Ra1 Kc3+ d2 Qa5 d1Q Rc8 Qdd7 Rce8 Qde2 Be5 Nd4 Qa2 Rb8 a8Q Qd8 Qa7 Rbc8 Qb6 Qbb1 Qba5 Qd3+ Kb4 Nb5 Bh2 Bb2 Be5 Rca8 Bd4 Rg8 Bhf6 Rg7 Bfe5 Rb1 Bg3+ Kg1 Bb6 Ra1 Ba7 Be5 Bd4 Bf6 Bge5+ Kf2 Rxe2+
1QR1Q2b/2nqBr1Q/5b1K/bqq1n3/1N2rP2/4r2k/R2B4/b4Bqb b - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 e4 g5 a4 bxa4 e5 gxh4 e6 a3 b5 fxe6 Nd2 e5 Nb3 a5 Nxa5 e4 Nc6 Qc7 Nd8 Qxd8 Ke2 Kf7 f4 Kg6 g4 h5 c4 d5 b6 e5 c5 e3 Kf3 e4+ Ke2 h3 b7 d3+ Ke1 h4 g5 Kf5 g6 e2 Kd2 Kg4 Ke3 h2 g7 d2 c6 a2 c7 d4+ Kf2 h3 Qa4 e1B+ Ke2 d1R Qa6 d3+ Ke3 d2 Qb5 Qd7 Qa5 Nc6 b8B Rh7 Qe5 Bb7 c8Q Ra3+ Qc3 Bh4 Rb1 a1B Rb5 Ne5 Ra5 Nf6 g8Q+ Bg7 Ra6 Ne8 Re6 Qb5 Qh8 Nc7 Ne2 Bhf6 Nd4 Re1+ Ne2 d1Q Ra6+ Qdd7 Qhe8 Bh8 Bd2 Rf7 Qd3 Kh4 Rg1 h1Q Rg8 h2 Ba7 Qg2 Bc5 h1Q Be7 Qg5 Qb8 Qhg2 Ra5 Kh3 Ra7 Rc3 Ra2 Bd5 Kd4+ e3 Nc1 Qh5 Qc2 e2 Nd3 Qg5 Nb4 Re3+ Rb2 Kg3 Rf8 Qg1 Qh7 Bh1+ Bd6 Rf3+ Ke4 Qgc5 Ra2 Qg7 Qe6 Re3+ Kf5 Re4 Be7 Qg8 Bh3 Kh2 Rd8 Qgg1 Rc8 Rb1 Bd6 Rb3 Bf1+ Kg3 Bf8 Rbe3 Bd6 Nd3+ Kg6 Ne5+ Kh6 Kh4 Qe8 Kg4 Be7 e1B Nc2 Kg3 Bc1 Ba5 Bd2 Kh4 Nb4 Kg4 Bd3 Kh3 Bf1+
Q1b4r/1b5n/5Br1/5nnK/k2P4/bb1nrNN1/nQ1R3B/2q1Qn1B b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 b5 d5 Ra3 dxc4 Rb3 b6 Rb4 axb4 a5 bxa5 Qb3 a4 Qc2 b3 Qxb3 a3 Qc2 Be7 Qd1 Bf8 Kf2 Kd7 Kf3 c5 Kg4 h5+ Kf5 c3 g4 f3 e4 c2 d4 a2 b6 Kc6+ Kf4 a1R b7 f5 e5 c4 g5 Kb5 g6 f2 e6 h3 e7 h4 Kg5 h2 g7 f4 Be2 f1B Bh5 c3 Qd3+ Ka4 Kg6 h3 e8Q+ Nc6 b8B f3 Be5 f2 Bb2 c1N Bf6 c2 Qf3 Ra3 Qfe3 Na2 Q8e6 c1N Bh4 Bc4 Qd7 f1N Qe4 Ra6 Nf3 Re3 Ba3 Qc7 Bd6 Nd3 Bf6 Bb3 Nbd2 Be7 Qde6 Nd8 Qb7 Qc1 Ne4 Nf7 Ng3 Ng5 Rg1 h1B Rg2 h2 Rd2 Bg2 Bb8 h1N Qe5 Bc4 Qb2 Ba3 Bd6 Bb3 Qe6 Nh6 g8Q Nhf7 Bg4 Nh7 Kh5 Nfg5 Qe4 Bb7 Qb8 Bh3 Be6 Rb6 Bd5 Bhc8 Bc7 Nhf2 Qh4 Nfe4 Qh1 Nd6 Be4 Nh2 Qe1 Nf5 Bg7 Nd6 Ne2 Nab4 Ne5 Ba8 Bh1 Nf5 Nf3 Rg6 Bf6 Nf1 Bh2 Bab7 Ng3 Na2 Qa8+
Q6B/1qBB1R2/4Kb1k/1n1R1n1N/2b1PR2/b1r1nnQ1/1rpqq3/6b1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 b5 d5 Na3 dxc4 Nc2 b6 Nb4 axb4 a5 bxa5 Qb3 a4 Qc2 b3 Qxb3 a3 Qa4 Kd7 Qd1 Ke8 Kf2 h5 Kf3 f5 d4 Kf7 g4 Kg7 b6 c5 g5 c3 g6 h3 e3 c2 d5 h4 b7 a2 d6 h2 d7 h3 Qd3 c4 Ne2 c3 Bg2 Nh6 Bf1 Ra3 Qd2 Nc6 b8Q Ba6 Qd5 Nd4+ Kf2 f3 Kg3 f2 Kf4 Nb5 Ke5 f4 Bg2 f1N Qb6 f3 Qdb7 f2 Be4 Nf5 Qc8 Kh6 Kd5 Bc5 Bb2 c1B Qe6 c2 Qd6 Rc3 Qa8 Nd2 Ke6 f1N g7 Nf3 g8R Ba3 Rb1 a1B Rg7 Qg5 Rf7 Rb8 Rg1 h1Q d8B h2 Bc7 Qhg2 Qg3 h1Q Nf4 Qe2 Bc6 Qd8 Nh5 Qdd2 Bd7 Qhg2 Qh2 Qg7 e4 N1e3 Rd1 Bc5 Ba3 Qh7 Bb4 Ba3 Qg3 Bd4 Rf1 B1b2 Rbe1 Bf6 Bba5 Bc5 Ra1 Bba3 Rad1 Nbd6 Bab6 N3h4 Qf3 Nec4 Ba7 Qde1 Rg7 Bd8 Bb5 Bg1 Ba5 Nce3 Rd5 Q1d2 Bd4 Rb6 Ba4 Bc4 Qg3 Rb2 Rf4 Nf3 Rc7 Bh4 Bh8 Bf6 Rb7 Qc7 Bb5 Qc6 Rf7 Qb7 Bd7 Nb5 Bc7
1QK1R1n1/2N3qB/3rQbQq/1n1r2N1/2Pr4/1pp2B2/1r1bBn2/2r2k2 b - - 0 1 legal: proof: b4 h5 f4 e5 g4 hxg4 c4 exf4 a4 a5 Ra3 axb4 Rd3 Ra5 Rc3 Ra8 d3 c5 Be3 b6 Bf2 Ba6 Bd4 cxd4 c5 Bc4 dxc4 dxc3 Kf2 Ke7 e4 Kf6 h4 Ke5 h5 g5 c6 f5 h6 d5 a5 b5 c7 g3+ Kf3 g2 c8Q g4+ Ke2 f3+ Ke3 b3 a6 b4 a7 f2 h7 g3 Qb7 b2 Rh6 d4+ Kd3 Kf4 e5 b3 e6 Bg7 e7 Nc6 e8B Qf6 Qd7 Rd8 a8B Na7 Rg6 Nb5 Be2 f1R Na3 b1R Baf3 Rb2 Qe6 Rd5 Rg5 Qh6 Qg6 Bf6 Qb1 Rc1 Be4 Rd6 Nf3 g1B Qa2 g2 Ba8 Be3 Bd1 g1Q Rg3 Bd2 Ng5 Qg2 Re3 Qg4 Re6 Kg3 Baf3 f4 Ke4 Kf2 Bf7 d3 Re8 Qg2 Kf5 Kf1 Qb1 Rd5+ Ke6 Qg1 Qf5 Qa7 Bg6 Qag7 Nc2 Rd4 Nb4 Rd5 Na6 Rd4 Bfh5 f3 Nc7 f2 Qe5 Be3 Bhf3 d2 Bgh5 Bf4 Qg6 Rd5 Bc2 d1N Bf5 Bd2 Qd6 Ne7 Kd7 Rf8 h8Q Ng8+ Kc8 Rf7 Na8 Rd7 Qe6 R7d6 B5e4 Ke1 Bhg4 f1R Nc7 Nf2 Bd1 Rg1 Bgf3 Kf1 Bb1 Rg4 Bbc2 Qh1 Qh2 Rgd4 Qf4 Ra6 Qfd6 Qhh6 Qb4 Na3 Qb8 Rad6 Qh5 Be7 Bh7 Bf6 Qg6 Nb5 Bde2+
1Q4rk/KQ1B2q1/p1bqR1Bn/PN3b2/r3Br1p/n7/N1n5/1b4Nb b - - 0 1 legal: proof: d4 e5 f4 exf4 c4 b6 c5 bxc5 Qb3 cxd4 Qd1 d3 b4 a6 b5 Bc5 h4 Ba7 b6 g6 bxa7 g5 a4 h6 g4 Qf6 Be3 Qe7 Bf2 Qf8 h5 Qe7 Bh4 Qd8 Nc3 gxh4 g5 Nf6 g6 Rh7 Rb1 Ng8 Rb5 Rh8 Rg5 hxg5 Nb1 Rh6 Bh3 Rh7 Bf1 Rh8 Kd2 Kf8 Kc3 Kg7 Kd4 f5 Kc5 d5 e4 f3 a5 d2 e5 f2 e6 g4 e7 d4 e8B d3 Bh3 f1N Ne2 g3 Ba4 g2 Qc1 d1B Bc2 g1Q+ Qe3 d2 Nec3 f4 Bhf5 f3 Bfe4 f2 Bg2 Qd6+ Kc4 c5 Ne2 Nh6 Nd4 Nc6 Qg5 Rg8 Ba4 Bf3 Qe7+ Kh8 Qb7 d1B Nc3 Nb4 Nde2 Bf5 Na2 Bc6 Be4 Raf8 a8N Bc2 Nc7 Bb1 Nb5 Nc2 Rh2 Qg5 Ng1 Qge7 Rh3 Qg7 Re3 Rf7 Bh1 Rff8 Re6 Rf6 Be4 Nfe3+ Kb3 f1B Kc3 Nf7 h6 c4 h7 Na3 Bac2 Nh6 Ba4 Bd5 Kd4 c3 Bac2 Bg2 Bcd3 Qdd7 Kc5 c2 Kb6 c1R Ka7 Bh1 Bc2 Bc6 Bcd3 Qd6 Bc2 Qge7 Ba4 Kg7 h8Q+ Kf8 Qh7 Rc4 g7+ Kf7 Bd3 Bg4 Bac2 Rff4 Qc7 Bh3 Bf5 Ra4 Bce4 Nec2 Qh8 Re8 Bh7 Rb8 Qb7 Bf5 Qd8 Rc8 Qdc7 Rd8 Bg6+ Kg8 Qcb8 Qf6 Be8 Kh7 Bd7 Rf8 g8B+ Kh8 Bf7 Qg7 Bh5 Rg8 Bg6
2K2nn1/R1pr3k/2Qr1N2/NQ3P2/3n2rq/3b1Qp1/R2BR1q1/2rq1b2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 e5 dxc4 e6 fxe6 Nf3 e5 Ng1 e4 a3 hxg4 Nc3 b5 Bd3 b3 Nb1 b2 Bc2 e6 Ba4 Bb4 axb4 bxa4 Ke2 Kf7 Ke3 Kg6 Kf4 e3 Ke5 a3 f4 a2 d4 e2 h4 e1N f5+ Kh7 d5 g5 b5 c3 h5 g3 d6 g4 h6 c2 d7 g2 b6 g3 b7 Ra6 Bg5 c1R Bd2 Rd6 Rh2 Nc2 Nc3 b1B Ne4 Nd4 Ne2 Qh4 d8Q g1Q Qe8 Qg2 Qc6 Bd3 Qf1 Rc4 Qf3 Rb4 Re1 a1R Nc1 Rc4 Nb3 Rac1 Re2 Bd7 Qa4 Bb5 Na5 Ba6 Qc6 Rd7 Nf2 Rd6 Ng4 Nd7+ Kf4 Nf8 Ke5 Bb5 b8R Rd7 Ra8 Ba6 Qb5 Rc6 Ra7 Rcd6 Re4 Bf1 Qc6 Bad3 Re2 Ne7 Qb5 Rg8 Qfc6 Rg5 Kf6 e5+ Kf7 e4 Ke8 e3 Nf6+ Kh8 h7 Ng8 Qf3 Rg4 Qfc6 Kg7 Qf3 Kh6 h8Q+ Kg5 Nh7+ Kh6 Qf6+ Rg6 Qe6 Kg7 Qec4 Rg4 Qcc6 Kh6 Nf6 Kg7 Be1 Kh8 Ra2 e2 Bd2 e1Q+ Ne4 Qd1 Nf6 Qh1 Rf2 Qg2 Re2 Rdg7 Nd7 Re7+ Kd8 Kh7 Kc8 Rf7 Nb6 Re7 Nd5 Red7 Nf6+
2r5/1n6/2N5/n4nNP/rRN1kpQn/B2b2Qq/pKb2n2/R2Qrn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 e5 d5 exf4 d6 cxd6 Nc3 d5 Nb1 d4 Bg2 hxg4 Bd5 a5 Bc4 Bc5 b4 Bb6 Bb3 axb3 Nd2 a4 Nb1 Ba5 bxa5 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 Ke7 c4 Kf6 h4 Kf5 a6 d5 a7 g5 c5 a3 e3 a2 c6 d3 Kc3 d4+ Kb2 f3 c7 g3 h5 g2 Rh3 g4 Qe2 g3 Qf1 d2 Rh1 d1B Nd2 f2 Nh3 g1N Nf3 g2 Nhg5 d3 Ne6 d2 Nfg5 Qd7 Kc3 b2 Nf8 b1N+ Kb2 Nc3 Nh3 Na4+ Ka3 Ke4 Rb1 f5 Ne6 f4 Nd8 Nh6 Nc6 Bc2 Qd1 Ba6 c8Q Nc5 Kb2 f1N Ra1 Qd3 Qcg4 Nb7 Rh2 Nf5 Ng5+ Kd5 Rh3 Nf3 Rh1 g1R e4+ Kc4 e5 Kd5 e6 N3h4 e7 Rc8 e8N Qh3 Rh2 Bad3 Nd6 Rh1 Nc4 Rg1 Nd4 Nc6 Rf2 Nca5 Nc6 N1e3 Qg3 Re1 Re2 Nf1 Re4 Rc7 Qdg4 Rac8 a8Q d1N+ Ka3 Nf2 Kb2 Rg7 Qa7 Rgg8 Qae3 Ra8 Qee2 Rgc8 Qd2 Nb3 Qdd1 Ra4 Be3 N3a5 Bc5 Rd8 Ba3 Rc8 Nd6 Nb3 Rb4 N3a5 Nd8 Ke5 Nc4+ Kd4 Nc6+ Kd5 Nf7 Ke4 Ng5+
1nb3Q1/n1nBr3/p1q2R1p/KP4nN/1QRqqQ2/1q2k2r/7q/RB6 b - - 0 1 legal: proof: h4 b5 g4 c5 f4 g5 d4 cxd4 a4 gxf4 g5 bxa4 b3 e5 Bb2 a3 Nc3 axb2 Nd5 Bh6 g6 f3 Nf4 Bg5 hxg5 exf4 Kd2 Ke7 c4 Kd6 e4 Kc5 g7 b1Q e5 f5 e6 d5 e7 a6 e8B d3 Kc3 d4+ Kd2 f2 g6 f3 Rh5 Qd5 Bd7 f4 Bg2 f1Q Ra4 f2 Nh3 f3 Qe2 Qg1 Re5 Ra7 Re7 Qh2 Be8 Qc6 Re3 Ne7 g8Q f1Q g7 f2 Ra3 Qfh1 Qf7 Nd5 g8Q Re7 Bd7 Nc7 Ra1 f1Q Re6 Qf2 Bd5 Qe4 Rf6 Qfh4 Nf4 Qa2+ Kd1 d2 Nh5 Q4f2 Qd3 Qa3 Kc2 d1N+ Kb1 Qb4 B5e6 Qff4 Bf5 Nf2 Kb2 Nh3+ Qd2 d3 Bg6 Kd4 c5 Qbb6 Ka3 Ng5 Qb4+ Ke3 Bgf5 d2 Bg6 Qeh1 Bb1 d1N Qff8 Qce4 c6 Nc3 Qh6 N3b5+ Ka4 Qbd4 Ka5 Qff3 Qhf8 Na7 Qff7 Ne8 c7 Qc1 Qff8 Qcc6 Qff7 Bb7 c8R Nc7 Qa3 Qfd1 b4+ Q1d3 b5 Qb3 Rf8 Bc8 Qb4 h6 Rf4 Rh7 Qfc4 Rhf7 Rh4 Rf3 Rf6 Rh3 Qcf7 Qdc4 Rg4 Qeh1 Rd4 Qhe4 Qff8 Q4c5 Rc4 Q5d5 Qff7 Qdd4 Qff8 Re8 Qfd6 Re7 Qf4+
n1Q1r1B1/R2b3b/pn3p1B/2Qb1p2/1NR1b2k/r2r4/3Q1P1q/b4K1B b - - 0 1 legal: proof: h4 g5 a4 gxh4 d4 c5 b3 cxd4 Na3 e6 Qd3 b6 Qf5 exf5 Nc4 b5 c3 dxc3 Nb2 cxb2 axb5 Qg5 Rb1 Qe7 Ra1 Qd8 e4 Ke7 g4 Kf6 b4 b1B b6 h5 b7 h3 b5 h2 b6 h4 Be2 h3 Ra3 Qc7 Ra5 Ne7 Ra1 Nd5 Bf3 Bg7 Bh6 Na6 b8Q Re8 b7 Nb6 g5+ Kg6 Ra4 Ba1 e5 Bd3 Rg4 Kh5 e6 Qd6 g6 Nc7 e7 Be4 Rg2+ Kh4 Ne2 f6 Rhg1 h1B g7 Qh2 g8B d5 Nc1 d4 Nd3 Bd7 Nb4 d3 Qd8 d2+ Kf1 d1B b8Q Bb3 Qbc8 a6 Bh7 Bg8 Rg7 Rb8 R1g3 Nca8 Qc5 Rc8 Rf7 Rc6 Bg2 Rd6 Rc3 Rd3 Rc4 Ra3 Bg6 Bh7 Rg7 Qe5 Bf7 h2 Bg8 Qf4 Qdc7 Qe5 Q7d6 Qf4 Qd2 Bd5 Bh3 Bhe4 Bg2 h1R+ Ke2 Rd8 e8Q Rhh3 Bh1 Rhd3 Kf1 Qh2 Qe6 Re8 Qec6 Bc8 Ra7 Bd7 Qc8
5Kb1/2r5/1r1pq1p1/bb1Q2b1/r3R1NP/2rQNRp1/3NQ1Bk/q3n3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Ba3 d5 Bc1 d4 a3 hxg4 Be3 b3 Bd2 b6 Ba5 bxa5 a4 Nc6 Qd3 Na7 Qd1 Nb5 axb5 Qb6 Kd2 Qf6 Ke1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 b2 h4 f3 e4+ Kf4 c4 Kg3 e5 f5 b6 f4 b7 d3 b8Q g6 c5 d6 e6 d2 e7 a4 e8N f2 c6 f3 c7 a3 Qb5 a2 Be2 f1B Qc1 d1R+ Kc6 f2 Qf5 Rh7 Nc3 b1R Qe4 Qf6 Qf5 Ra4 Qh5 Be7 Qc2 Be6 c8Q Nh6 Qb3 Nf7 Qa6 Rd3 Qbd5 Ng5 Nd1 Nf3 Ne3 Ne1 Nf3 Bg8 Kd7 Rc3 Nd2 Rb6 Bf3 Bd3 Rd1 f1Q Bg2 a1B Qab5 Qe2 Rf1 Kh2 Rf3 g3 Qhf5 Qd4 Nf6 Rf7 Qb2 Bb5+ Ke6 Bd8 Qd3 Bc7 Qbc2 Bb2 Rb1 Bc1 Rb4 Bd8 Nh5 Bg5 Nf6 Ba3 Rc4 Bb4 Qd1 Ba5 Rb4 Rf8+ Ke7 Rfc8 Rc4 Rc7+ Kf8 Qe5 Re4 Qe6 Q1c2 Qd1 Qe2 Qb1 Qcd3 Qa1 Nfg4+
R5K1/1bNR1Np1/2b3Q1/r1rB3p/3p4/2PQN1n1/p1nn1qQ1/1b1n3k b - - 0 1 illegal: No possible last move, all moves rejected
rQKb1bN1/1rR2k1p/6q1/2QPb3/2RRr1Q1/3bnpB1/2qpBp2/8 b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 a4 gxh4 Kf2 a5 Ke1 axb4 c4 d5 Na3 bxa3 Rh2 d4 Rh3 Bg7 Rh1 Bf8 d3 Nd7 Rb1 Bb4+ Kf2 Nb6 Ra1 Nd5 cxd5 Bd2 Nh3 Bf5 Ng1 Bxd3 Ra2 Bf5 Ra1 Bc8 Kf3 b5 Ke4 f5+ Ke5 c5 g4 a2 e4 c4 a5 c3 g5 h3 a6 b4 a7 f3 g6 c2 g7 f4 Bb5+ Kf7 Ba6 b3 Qf1 f2 Qb5 d3 Qc5 h2 Nh3 b2 Rd1 f3 Nf4 b1Q Ng6 h1R Ne7 Qe8 Kd6 Re1 Kc7 Nf6 e5 Bb4 Bf4 c1B Ng8 Qc2 Bg3 Bg5 Rac1 a1B Bc4 Rb8 a8R Re4 Ra4 Bf5 Ba6 Ba3 Rc4 Ng4 Bb5 Ne3 e6+ Kg6 e7 Kf7 Ba6 Rb3 Bb5 Qc6+ Kd8 Be5 Ba6 Qh6 Rd2 Bg6 Kc8 Rb7 Qc6 Rh4 Re4 Qa4 Kd8 Ng4 Qb6 Beb2 Rc7 Qd1 Rdc2 d2 Be2 Bf5 R2c4 Be5 Red4 Bd3 Kd7 Qb1 Nf6 Ra7 Qb5 Rha8 Qb8 Qc2 Kd8 Rb7 Kc8 Kg6 g8Q+ Qg7 Ra4 Ne3 Rac4 Re4 Qe6 Bad6 Qg4 Kf7 Ng8 Bc5 Nf6 Qg6 Ng8 Kg7 e8Q+ Bce7 Kd7 Bf8 Kc8+ Bge7 Qb5 Kf7 R7c6 Bh4 Qc5 Bd8 Rc7+
4Qr1Q/6K1/3n1r2/1P1n2bB/p2p2pn/R3Qp1N/1k1b1NbB/N1n2r2 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 g4 hxg4 b4 e5 c4 exf4 a5 b5 Ra3 Qb6 axb6 bxc4 Rb3 cxb3 b5 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 h4 f5 b7 g5 h5 a5 h6 d5 h7 b2 Nf3 d4 Bh3 d2 Re1 a4 Qe2+ Kb3 Qf2 d1N Rh1 g3 Rh2 g2 Na3 b1N Qg3 g1B Rh1 g4 Ne1+ f3 Bg5 f4 Rh2 Ndc3 Bf1 f2 Qe3 Nd2 Rh3 Ra6 Bd3 f1R Nac2 Bb4 Na1+ Kb2 Bh4 Nd5 Bg3 Rh6 Bh2 Na6 b8Q Nc5 Ng2 Bd7 Qe8 Nge7 Rg3 Rg8 h8Q Nf5 Bc4 Nb7 Bb3 Nc3 Bf7 Nh4 Bh5 Nb3 Rf3 Bf5 Rh3 Bg6 Kf6 Nc1 e5 Nd6 e6 Rf8+ Kg7 Nd5 e7 Bd2 Qc3+ Ka2 Qb8 Bde3 e8N Bd2 Nf6 Be4 Qe8 Bge3 Qd3 Bf3 Ne4 Kb2 Nf2 Re6 Ne1 Be4 Nf3 Ref6 Ng5 Bg2 Rg3 Nb4 Ngh3 Nd5 Nh1 Bg1 Re3 f3 Qe2 Bf2 Ra3 Be3 N1f2 Bg5 Q2e3
2b1rrn1/B1q1nQBr/R1nQ1q2/7n/1N3b2/1q2Nrb1/1P2kQ2/n3N2K b - - 0 1 legal: proof: g4 g5 a4 h5 d4 c5 f4 cxd4 a5 gxf4 g5 e5 a6 e4 Bh3 bxa6 Be6 a5 Ra3 a4 Rf3 exf3 Bg4 hxg4 Kf1 Ke7 h4 Ke6 e4 Ke5 c4 f5 c5 d5 c6 a5 g6 a3 h5 a4 c7 a2 g7 a1Q h6 f2 Kg2 f1R h7 f3+ Kh2 a3 Qe1 f4 Nh3 f2 Kg2 g3 Qd1 d3 Ng5 Kd4 e5 a2 e6 d2 e7 Kd3 e8N d4 Nc3 Nc6 Ne2 Qf6 Rh4 Bd6 Rg4 f3+ Kh3 g2 Ng3 g1B Ne2 Bf4 Nd6 Bgh2 Nf5 Bhg3 Qe1 d1Q Nc3 Qb3 Be3 Qc1 Nd5 a1N Rh4 Ra7 Rh6 Qcc3 Qc1 Ke2 Nb4 d3 Rg6 Rb7 Ba7 d2 Rh6 d1N Qb1 Nge7 g8Q Ne3 Qf7 Ng4 Ne3 Re8 h8B Qc1 Rg6 Qcc3 Bg7 Nh6+ Qf5 Nhg8 Q5e6 Re1 Qg4 f1R Qge6 f2 Kg2 Rd1 Nf3 Rdd8 Ne1 Rf8 Qd6 Rde8 Bd4 Rb5 Bb6 Rh5 Ba7 Rh7 Rh6 Rh1 Rg6 f1N Rh6 Rh5 Kg1 Rf5 Kh1 Bd7 c8Q Qcc4 Qcb8 Bc8 Qb6 Qc5 Ned5 Qa5 Qg1 Qc7 Rh3 Bf2 Rh6 Ng3+ Kh2 Nh5+ Kh1 B2g3 Ne3 Qe5 Re6 Qec3 Re5 Qd4 Ra5 Qf6 Ra2 Bh6 Ra3 Rf3 Ra6 Bhf4 Qf2+
nqkr2bb/2Bq1Q2/1R4rr/1Q2n1qr/2b2qnN/5Bb1/1K1Q3P/2R1R3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 d5 e4 Kd7 a4 f5 c4 b5 Kc2 g5 e5 d3+ Kb3 d4 a5 f4 a6 g4 a7 d2 c5 d3 Qe2 d1B+ Qc2 d2 Ne2 g1N Nd4 g2 Ba3 f3 Ka2 b3+ Kb1 f2 Ne6 b4 Qa2 g3 Ba6 f1Q Ng7 b2 Bc4 Na6 Bb3 Nf3 Ne6 g1B Bc4 g2 Bd5 Be2+ Kc2 b1R Qc4 b3+ Kc3 d1Q Bb4 b2 Qg4 Bf2 Ra3 g1R Qf4 Bg7 Ba5 Nf6 Ng5 Bg3 Qd2 Bc4 Rb3 Rh5 Rb6 Bh8 c6+ Kc7 e6 Ne5 e7 Qf4 e8Q Be6 Qf8 Bg8 Qf7+ Kc8 c7 Nfg4 Nf3 Qdg5 Nh4 Qa4 Bf3 Qd7 Kc2 Rb8 a8R Ra1 Ra7 b1Q+ Kc3 Rg2 Re1 Ra4 Rab7 Rb4 Rc6 Rb6 Rc5 Rbh6 Rb6 Qbe4 Kb2 Qb7 Rd5 Ra8 Rd3 Qb8 Rc3 Nb4 Rcc1 Nd5 Rb4 Nb6 Rb5 Ra7 Rb4 Na8 Rb6 Rg1 Qc3 Qde7 Qg6 Ne3 Rb5 Qgf5 Rb6 Bf2 Qc6 Rgg6 Qb4 N3g4 Ra6 Q5g5 Qcb5 Bg3 Qd2 Qd6 Rc6 Kd7 Bb6 Ra3 Ba5 Rd3 c8Q+ Ke7 Qf8+ Kd7 Bd8 Rd5 Rb6+ Kc8 Qf5+ Qe6 Bc7 Rd8 Qf6 Qd7 Qf7
2N1n3/2k1Rb2/2N1B1Qr/n1K1n2q/N1Qr1r1b/2q5/r2P2R1/bq1q1Rn1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 Kd7 a4 c5 e4 f5 Ke2 g5 Ke3 b5 e5 c3 e6+ Kc7 a5 b3 h5 f4+ Ke4 c2 e7 c1N e8R c4 a6 b4 a7 g2 h6 c3 h7 b2 Qe1 c2 Qh4 g3 Rh2 g4 Ra5 f3 Qg5 f2 Bc4 f1R Ba6 b3 Qe7+ Nd7 Kd4 Bg7+ Re5 Rf4+ Kd5 Nf6+ Ke6 Rd4 Ne2 g1B Nf4 g2 Rf5 g3 Rfh5 Bf2 Qf7 g1N Nc3 b1Q Rd5 b2 Rg5 g2 Re7 Ne8 Rh1 Bh4 Na4 Nb3 Qg6 c1Q Ne2 Qc3 Bb5 Na5 Rg4 Rf4 Kd5 Qd1 Nd4 b1Q Nc6 Ba6 Rg3 Qb8 Rg5 Qb6 Rg3 Qbe3 Rg5 Qee2 Rg3 Rd8 a8Q Bb7 Qa6 Qh5+ Rg5 Ne2 Re1 g1R Rf1 Be5 Rg4 Rh1 Rg5 Ng1 Rg2 Rg8 h8N Ra8 Qe4 Rgg4 Qg6 Rh3 Nf7 Rd4+ Ke6 Rgf4 Nd6 Rh2 Nc8 Rh1 Be2 Ra7 Qb5 Ba6 Qd5 Bc4 Bg4 Bb3 Rh7 Bg7 Qc4 Ne5 Bf5 Rde4 Kd5 Rd4+ Kc5 Rh3 Kb5 Rh2 Bd7 Rh3 Qb4 Bf7 Rh6 Qe3 Nd8 Nb3 Rg3 Qhg4 Qe6 Nc6 Rgf3 Rc4 Rg6 Bg3 Nc3 Ra2 Na4 Ba1 Qf5 Rcd4 Qc4 Qc3 Re3 Qh4 Re7 Na5+ Kc5 Ne5 Nc6 Qhg4 Rg5 Rh6 Qg6 Qh5 Rg4 Bf2 Rg2 Bh4 Be6+
1R6/2rk2q1/N1BbR1nb/4r1q1/KQQ1P3/1nq1R1nB/4Q1n1/3r1bqr b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Nd2 h5 Ndf3 Ke7 Be3 Ke8 Bf2 Ra3 Ne5 Ra8 Kd2 g3 Ng4 gxf2 Ne3 Ra6 g4 Ra3 g5 Ra8 Ng4 hxg4 h4 d5 c4 b5 Kc2 f5 Kb3 g3 a4 d3 e4 d4 h5 g2 h6 f3 c5 d2 a5 d3 g6 f4 g7 Bd6 a6 Ra7 c6 Ne7 g8B Ng6 h7 Rc7 a7 Nd7 a8R Nc5+ Ka2 b3+ Ka3 b4+ Kb2 Qg5 R8a7 Bh3 Be2 f1Q R7a4 f2 R1a3 f3 Qe1 d1N+ Ka1 b2+ Ka2 b1R Ra7 d2 Be6 Ne3 Rc3 d1R Qd2 b3+ Ka3 b2 Ra6 Qe1 Bb5 f1N Ne2 g1B Nc1 f2 Nd3 Ng2 Nb4 Ng3 Re3 f1Q Qe2 Nb3 Ka4 Qc3 Ra8+ Ke7 Rb8 Re8 h8Q Qf7 Qd4 Qg7 Na6 Rbc1 Qb4 b1Q Bc8 Kd8 Rh2 Re5 Rh1 Bf2 Rf1 Be1 Rf6 Bd2 Re6 Rh1 Bc4 Rcd1 Bd5 Ne1 Qh2 Bf1 Qe2 Re7 c7+ Ke8 Bdb7 Ng2 Rf6 Rf7 Bh3+ Ke7 Re6+ Kd7 Ba8 Qbc1 Rf3 Bf4 Bd5 Q1e3 Bb7 Qg1 Re3 Q5f6 Bd5 Bh6 Ba8 Qd8 Bb7 Re7 c8Q+ Ke8 Rf6 Rd7 Qcc5 Rc7 Re6+ Kd7 Qcc4 Qg5 Bc6+
3n1B1R/RqRq1Q1q/2n1r3/8/2Q1Q3/rP2rNbq/b2q1bp1/K4knB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bh3 g3 Bf1 g2 Nc3 cxd6 Ne4 d5 Ng3 fxg3 Bh6 d4 Bg5 Bc5 Bc1 Bf8 Kd2 Ke7 h4 Kf6 e4 Ke5 c4 Kf4 e5 f5 c5 g5 c6 d5 h5 a5 h6 d3 Kc3+ d2 h7 Ke3 c7 Kf2 e6 g4 e7 d4+ Kc2 a3 Kb1 a2+ Kc2 f4 e8Q d3+ Kc3 f3 Be2 a4 Qe4 a3 Qg6 Nh6 Qf6 Be6 c8R Qe7 Rc6 Qb7 Rb6 Nf7 Qg5 Bd6 Qf4 Nd8 Bf1 Nbc6 Qfa4 Ra6 Qac2 Re8 Ne2 g1B h8Q g2 Rb1 a1R Qh3 g3 Qh2 Ba2 b3 Re3 Bb2 Bb8 Qdc1 d1Q Qh3 d2+ Qd3 Ke1 Qh4 Bf2 Qe7 g1N Rh8 Bf4 Qc2 Qc1 Bg2 d1Q Bh1 Kf1 Qf7 Qcd2+ Kc4 g2 Rc1 B4g3 Qe4 Qdd7 Qc3 Qh3 Rc2 Qd2 Nd4 Qbd7 Rb7 Rae1 Qh4 Re6 Qb4 R1e3 Qe4 Ke1 Bc3 Ne7 Rh4 Bb1 Ba1 a2 Qef5 Rd3 Nc6 Bc5 Be5 a1Q Rh6 f2 Nd4 f1Q Bd6 Qf3 Ra7 Qfb7 Rh8 Ba2 Nf3+ Kf1 Qf4 Qf6 Qe4 Qff5 Qc3 Bcf2 Bb4 Nc8 Bf8 Re3 Qcd4 Qfh7 Qdd3+ Qe2 Kc3 Ra3 Kb2 Ne7 Qdd5 Qe1 Rc7 Qd2+ Ka1 Nec6 Qdc4+
bBn2nQ1/5q2/1N1Qrb1b/1bN3Qb/1q3P2/pq2BR1k/4rBr1/2K3b1 b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 fxe6 Nb1 e5 Ra3 e4 Ra2 Nh6 Ra1 Ng8 b4 h5 f4 g4 Ra3 Rh6 Rf3 Rh7 g3 Rh8 Bh3 gxf3 g4 Qa5 g5 Qd8 Bg4 hxg4 Kd2 Kf7 c4 Ke6 h4 Kf5 g6 a5 g7 e5 h5 d5 b5 a3 b6 g3 h6 Kg4 b7 g2 h7 a4 c5 e3+ Kc2 d3+ Kc3 e2 Kd2 e1R c6 a2 c7 a1B Rh2 e4 Rh5 d4 Qe2 a3 Qe3 f2 Nc3 f1B Nd5 Ne7 Rh2 Ra6 Rh3 Nd7 b8B Re6 Ne2 g1B Rh2 Rg8 h8B Qe8 Rf2 Bb7 c8Q Ba8 Bb2 Qf7 Qd8 Nc8 Nec3 Re2+ Kd1 d2 Kc2 d1B+ Kb1 d3 Rf3 d2 Qd4 e3 Bc1 Bb2 Qd3 Ba1 Ne4 Bf6 Nb6 Kh4 Ng3 Kh3 Qd6 Rf2 Qe5 e2 Qd6 e1Q Q8e7 Bb5 Ne4+ Kg4 Nc5 Rfe2 Rf1 Kh3 Rf2 Bc3 Qg5 Bf6 Rf1 Bb3 Rf2 d1Q Rf1 Qd5 Rf2 Qb4 Be3 Bc2+ Kc1 Bg6 Rf1 Qdb3 Rf3+ Kh2 Bf2 Bh5 Bg3+ Kh3 Qg6 Bg5 Qh6 Bfe7 Qg6 Bh6 Qg5 Rd8 g8Q Nf8 Be5 Bf6 Bd4 Rde8 Be3 Rg2 Bef2 Re2 Be3 Re6 Bgf2+
B1bQ4/nq5r/Q2r1n2/rBn1N1K1/1Pn1q1Qp/1Nb3b1/3rk3/B3n2R b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 f4 b5 h4 bxa4 f5 gxh4 f6 exf6 Ra3 f5 Rah3 f4 Rb3 axb3 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 e4 f5+ Kh5 a5 g4 d5 c4 h3 c5 a4 c6 f3 c7 b2 g5 d3 g6 Kd4 e5 d2 e6 Ke3 g7 h2 e7 f4 e8Q+ Qe7 Bb5 a3 Bf1 d4 Nh3 a2 Ng5 a1B Qd8 f2 Bg2 f1N Nf3 d3 Nc3 b1Q Ng1 f3 Ba3 f2 Bf3 Nf6+ Kg5 h5 g8B h4 Be2 Ra5+ Qd5 Rh7 Qf5 Ng3 Qc1 f1N Nb5 Bc3 Qe1 d1R Be6 d2 Bb3 Qbe4 Qh3 Nc6 Bc2 Na7 Bc1 Qf7 Qd7 Bd6 Nf3 Bde5 Rg1 h1N Nbd4 Nf2 Rh1 Nd3 Bb2 Qe7 Qh3 Qb7 Nb3 Nge4+ Kg6 Bf4 Qg4 Nec5 Ba1 Bg3 Kg5 Qee4 Bb1 Bge5 Qeg3 Ne1 Bb5 Bd6 Q3h3 Bg3 Ne5 Kf2 Qd7 Ne3 Qd8 Nc4 Qe6 Ke2 Qa6 Rc1 Ba2 d1R Bb1 Rc2 Ba2 Be6 c8Q Rd6 Bb1 Rcd2 Bc2 Qf3 Be4 Bg4 Bec6 Qe4 Qe6 Bf5 Qeg8 Bc8 Qe6 Qc7 Ba8 Qcb7 Qg4+
KNQ1b3/b4qr1/b3nR2/RRQ5/pQqnBP1n/3r2q1/2b5/1kN2q1b b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 b5 a4 bxa4 b3 c5 h5 cxd4 h6 a3 Bb2 axb2 Be2 gxh6 Bb5 h5 Bf1 h4 Kd2 Kf7 c4 Kf6 g4 Ke5 g5 a5 b4 h5 c5 d5 c6 h3 g6 h2 c7 a4 g7 e3+ Kd3 h4 f3 e2 b5 e1N+ Ke2 h3 f4+ Ke4 b6 e5 b7 d3+ Kd2 d4 Ne2 Nh6 g8Q Ra7 Ra3 Qf6 Ng1 Qf7 Rc3 Nd7 b8Q Nc2 Rc4 Ba6 c8R Bc5 Qh5 Nf8 Na3 b1Q Qhg5 Ne6 Nf3 Qb5 Qg1 Nf5 Rc3 Nh4 Qe8 Qc4 Qeb5 Rd8 Be2 Rc7 Qg4 Ba7 Rb1 h1B Qc5 h2 Nb5 Bg2 Qbb6 h1B Ra8 Rcd7 Qh3 Rg8 Qb8 Rg7 Nc7 Rd8 Rb5 Rd5 Kd1 d2 Bd3+ Ke3 Qf5 e4 Qb4 Bh3 Qc8 Bg4 Rb3 Bh5 Rb2 Rd6 Qfc5 Rd5 Bf1 Rd6 Bg2 Kd3 Rb1 e3 Ra5 Bb7 Na6 Rd8 Nb8 Ba6 Qf8 Bg6 Rf5 Bh5 Rf6 Rd5 Qbc5 Kc3 Rb5 Rd6 Ra5 Kb2 Qe7 Kb1 Rb5+ Qb4 Ke2 d1B+ Kd3 e2 Ke4 d3+ Ke5 d2 Nd4 e1Q+ Be4 Qg3 Nb3 Rd3 Qed6 Ncd4 Kd5 Bc2 Qdf8 Ndf3+ Kc6 d1Q Qfd6 Qf1 Qdd4 Qc4 Qc3 Bb6 Qb4 Bc7 Ra7 Be5 Kb6 Nfd4 Ra8 Bc7+ Ka7 Bb7 Bd5 Qe7 Rb6 Be8 Rb5 Qf7 Be4 Ba5 Nd7 Bb6+ Kb8 Ndf3 Raa5 Ba6 Ka8 Ba7 Nb8 Nfd4 Nc1+
b1kqR2q/1bq2r2/BqqB1N2/bn2Pn2/K3pbQN/1n4rQ/1B6/N7 b - - 0 1 legal: proof: f4 e5 g4 h5 e4 hxg4 b4 a5 d4 axb4 a4 exf4 d5 c6 e5 cxd5 Ra3 Bd6 Re3 Bf8 Re4 dxe4 Kd2 f5 c4 b5 Kc2 d5 Kb3 Kd7 h4 g5 a5 f3 h5 g3 c5 f4 a6 g4 h6 d4 a7 d3 h7 g2 Qd2 f2 Nh3 g1Q Qe1 d2 Na3 d1B+ Nc2 f3 Qe3 g3 Rh2 g2 Nf4 Qh1 Bd2 g1B Bg2 f1Q Qc3 f2 Rh5 Nc6 Nd5 Na5+ Kb2 b3 Ka3 b4+ Ka4 b2 Qc4 b1Q Bf4 b3 Bh2 b2 Rh4 Ne7 Nc3 Nb3 Qg8 Bb7 c6+ Kc8 c7 Nf5 Nd5 Bb4 Nf6 Qc4 Bf4 f1Q Bc1 Bh2 Qg4 Rg8 h8B Bf4 Na1 Qbc2 Bf3 b1N Bb2 Qfg1 Bg7 Qb6 Rh8 Na3 Be2 Nb5 Bf8 Qcc6 Bd6 Ba5 Qh3 Rb8 a8Q Rg3 Re8 Q2c3 Qg4 Qh8 Qa7 Ba8 Bc4 Be2 Qh3 Qbb7 Qg1 Qbb6 Qgg2 Rb7 Qg4 Ra7 Q2h3 Kb7 c8N Qcc7 Bg8 Q3c6 Ne7 Kb8 Ng6 Kc8 Nh4 Bc4 Bf7 Bd5 Nf3 Qc1 Nh4 Bdb7 Bg8 Q1c6 Bc4 Qb8 Nd7 Na3+ Bb5 Ba6 Nf6 Rf7 Qh1 B6b7 Qhh3 Q8c7 Qf3 Qc3 Ba6 Nb5 Qd1 Q3c6 Qdg4
1qR1n2n/2q4n/qBrQ4/3P2nK/R7/5B2/bq3rpb/NQrkRBn1 b - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Nc3 f3 Nd5 g3 Nf4 axb6 Qb3 b5 Qd1 b4 Ng2 fxg2 h4 Ke7 a4 Kd6 e4 Kc5 Ke2 Kd4 Kf3 g5 e5 b5 a5 f5 a6 c5 e6 g4+ Kf4 c3 a7 b3 h5 c4 e7 b2 Kg5 b1Q d3 c2 h6 Kc3 h7 b4 d4 f4 Ra4 f3 Kg6 f2 e8Q b3 Bh6 c1R+ Qe4 b2 Nh3 g1N Be2 f1Q Rb4 g2 Ng5 g3 Rb6 Nh3 Nf7 g1N Re6 g2 Nd6 Na6 Qa4 Nc7 Be3 Nf6 Qd1 Nce8 Qf5 Ng5 Rh5 Qc7 Nf7 Bd6 Rh1 Rf8 h8R Nfh7 Bf3 Bh2 Kh5 Bd7 Bf2 Rc8 Re2 Be6 a8B Qa2 Bg4 b1Q Nh6 Qbb8 Baf3 Qab2 Qb1 Rf5 Qd2+ Kb3 Qf4 c3 Qd6 c2 Be3 Bc4 d5 Kc3 Bb6 Ba2 Rf8 Rf7 Nf5 Rf6 Re7 Kd2 Nd4 Qa6 Re2+ Kd1 Nb3 Rf5 Na1 Rf6 Be4 Rf2 Bef3 Qcc4 Qd7 Rc6 Qd6 Qcc3 Bc8 Qg7 Bf5 Qgc7 Bd3 Be5 Ba5 Nef6+ Kh6 Bf4 Rh5 Bh2 Rc8 Ne8 Bb6 Qb4 Qb2 Rb1 Rh4 c1N Re5+ Nce2 Kh5 Rbc1 Qb1 Qb2 Rf4 Nf7 Rh4 Nh3 Ra4 N3g5 Bc4 Nh8 Bb5 Kd2 Bc4 Ng1 Bf1 Qab5 Re3 Qa6 Re2+ Kd1 Re1+
1N1k4/2Q2KBP/RRr1np2/7Q/b2q1nq1/q2Bqr1b/B2b3n/4qQb1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 d5 Kd3 b5 a4 g5 e4 f6 c4 g4 h4 b3 h5 b4 c5 b2 a5 b1Q+ Qc2 b3 a6 b2 e5 Nd7 h6 Qa2 h7 b1Q e6 Nh6 e7 Qa3+ Ke2 d3+ Ke3 d2+ Kd4 d1B c6 Nc5 Qf2 Ba4 Ne2 g1B a7 g2 c7 g3 Bd2 Qe1 Ra2 Bh3 c8B Ng4 Bb4 Nh2 Ra1 Bh6 Be6 Bd2 Bg8 Rc8 a8Q Rc6 Qb8 Kd7 Bf7 Rg8 Qe5 Rg5 e8Q+ Kc8 Bg8 Rf5 Qh5 Rf3 Qf4 Qe8 Be6+ Kd8 Qfe5 Nd3 Bf8 Nf4 Bg7 Qg6 Rb1 Qg4 Rb4 Rd6 Kc5 d4 Ba2 d3 Nd4 Ne6+ Kc4 Rc6+ Kd5 Bc1 Be2 d2 Rb6 d1Q Bd3 Bd2 Qf1 Qe3 Qf4 Qde1 Ra6 Bf2 Rb6 g1N Qfe5 g2 Qg3 Rc1 Ra6 Ne2 Nc6+ Kd7 Qf4 g1Q Nb8+ Kd8 Qfe5 Rc5+ Kd6 N2f4 Rb6 Kc8 Ke7 Rc6+ Kf7 Kd8 Ra6 Qd4 Qg2 Qee3 Qc5 Rb6 Qc6 Qga1 Rb1 Bg1 Rb3 Qd1 Qf1 Qde1 Qb7 Rd6 Rbb6 Rc6 Qc7+
1Rq5/nr2pPbQ/1rr4Q/B1bq2nQ/r1k4B/N7/b1BRr3/2K1n1n1 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 Kd2 Kf7 h4 Ke6 c4 b5 f4 d5 h5 g5 h6 d3 c5 b4 h7 a2 c6 d4 f5+ Kd5 a5 b3 c7 e3+ Ke1 e2 Kd2 e1N f6 g3 a6 b2 f7 b1R a7 g2 Qh5 Bg7 Bb2 Nf6 Qh2 g4 Nh3 g1B Ng5 g3 Qf2 g2 Qe3 Kc4 Nf3 Nc6 Rh3 Be6 c8Q Rb8 a8Q Rb7 Qcb8 Qc8 Qbe5 Na7 Bc3 R1b6 Kc1 Ne4 Rb1 a1R Rh2 Ng5 Ba5 Ra4 Q5e4 Rd8 h8B Rdd6 Qh7 Rdc6 Be2 Bf2 Bd1 g1N Bc2 Bd5 Qb8 Be6 Qbe5 Bd5 Rb2 d2+ Kb1 d3 Nd4 Be6 Nb5 d1R+ Qc1 Be3 Rd2 Bc5 Qe2 Bd5 Qeh5 Be6 Rg2 Rd2 Na3+ Kd4 Rh2 Re2 Qd2 Ba2+ Kc1 Ne6 Qdh6 Ng5 Rb5 d2+ Kb2 Be5 Bf6 d1Q Rg2 Qd3 Kc1 Qb3 Rf2 Qd5 Rh2 Ne4 Bg5 Bg7 Bh4 Ng5 Rb4+ Kc3 Rf2 Re3 Rd2 Re2 Rb1+ Rbb4 Qd6 Rd7 Rb2 Rdc7 Nb1+ Kc4 Qdh6 Rd7 Rb3 Rb8 Ra3 Rb2 Rb3 Rdc7 Rb7 Rbb6 Rb8 Rcb7 Na3+
3r2r1/1Pb1k3/K1br4/1BqQR3/3b2q1/1NqN2p1/bnQ1b2N/r3n1BQ b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 hxg4 f6 g3 Bb2 g2 Ra3 exf6 Bc1 f5 Rd3 f4 Rg3 fxg3 Kd2 Qh4 Kd3 d5 c4 g5 e4 f5 e5 a5 b5 f4 e6 f3 e7 g4 c5 a3 b6 a4 h3 f2 c6 a2 b7 a1Q c7 a3 Nd2 a2 Qc2 Nc6 Nb3 Na5 Qe2 Be6 c8N Nh6 Bg5 Nf5 Qd2 Rg8 Nb6 Nc4 Bf6 Rd8 Qe1 Qc3+ Ke2 a1R Nf3 g1Q Na5 g2 Qd2 g3 Qc2 Qg4 h4 Nfe3 h5 Nb2 h6 Bg7 Qb1 Nc2 h7 Ne1 h8Q d3+ Ke3 Bf7 Bd4 Be5 Nbc4 Bc7 Nce5 d2+ Qd3 d1B Rh5 Ba4 Qh6 Qb4 Qc2 Bc6 Qd6 Be6 Nh2 Qc4 Bd3 f1B+ Kd2 Qb3 Bb5 Be2 Bb6 Qbf3 Qdc5 Qf6 Kc3 d4+ Kb4 Ba2 Nb3 d3+ Ka5 d2 Ka6 d1R Rf5 R1d5 Nd3 R5d6 Qd5 Qc3 Rh5 Qf2 Bc5 g1B Qh1 Kf7 e8Q+ Kf6 Qee4 Qff5 Bf2 Qfc5 Qd5 Ke7 Bd4 Be3 Rg5 Bc1 Bf2 Be3 Bg1 Bd4 Re5+
RbK3bb/b1P1r1rQ/2k2p1q/3n1Q2/B2N1bB1/2n1bN2/5n2/4qQBn b - - 0 1 legal: proof: b4 c5 a4 cxb4 e4 h5 g4 hxg4 f4 d5 f5 dxe4 f6 a5 Ke2 Qb6 Ra3 Qxf6 Ke3 Qf3+ Kd4 Qg2 Kc4 Qf2 Kb3 Bd7 Kb2 Bc8 Rc3 b3 Rc4 Bf5 Rd4 Bc8 Rb4 axb4 h4 Kd7 c4 e5 c5 b5 a5 g5 h5 e3 h6 g3 a6 f6 a7 g4 h7 g2 Bd3 g3 Bf1 e4 Nh3 g1B Nf4 g2 Rh4 e2 d4 e1B+ Qc2 e3 d5 e2 d6 Kc6 d7 Bd2 d8Q e1B Qg6 Nh6 Qe7 Bg7 Qe5 Na6 Bc4 Nc7 Qd3 Nf5 Rh5 Re8 h8Q Qh4 Qd8 Bge3 Qf8 g1B Nd5 Be6 Bd3 Re7 Be2 Bg8 Qf7 Bg3 Ndc3 Bh8 Bg4 Nd5 Qh7 Rb8 a8B+ Rbb7 Qe4 Bb8 Qc4 Ng3 Qa5 Qh2 Qf1 Nh1 Re5 Rg7 Re8 Qh6 Rd8 Bef4 Rf8 Bde3 Nd2 Re7 Nf3 Rg7 Bd2 Bgf2 Be1 Bg1 Bf2 Re7 Ka1 b2+ Ka2 b3+ Ka3 b4+ Ka4 b1Q Nb5 b2 Rd8 b3 Re8 Bgh2 Bg1 Qe1 Rd8 b1N Re8 b2 Rd8 Nb4 Rc8+ Kd5 c6 Nd3 Rd8+ Rbd7 c7+ Kc5 Bd5 Ndf2 Bb3 Kc6 Rc8 Nc3+ Kb4 b1N Ba4 Bba7 Ra8 Bb8 Nbd4+ Kd6 Qaf5 Nd5+ Kb5 Nbc3+ Ka6 Kc5 Nb5 Kc6 Qe4 Rg7 Qe5 Rde7 Qef5 Kc5 Kb7 Bhg3 Kc8 Kc6 Qhg6 Bea7 Qh7 Bfe3 Nh2 Be5 Nf3 B5f4 Nbd4+
B1Q5/3Pb1bb/2b1kb1p/nR1N1N1K/nBQ2Q2/b2q3B/r1b4b/1rr5 b - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 fxe4 Ra3 bxa3 h6 gxh6 Bb2 h5 Bc1 h4 Ke2 Kd7 f4 c5 g4 b5 d4 e5 d5 b4 d6 e3 Kf3 h3 f5 h6 g5 a2 Kg4 a1B a5 e4 f6 c3 a6 c4 g6 e2 a7 e1B g7 h2 f7 e3 Bd2 e2 Qc2 b3 Qb2 c2 Bc1 c3 Nf3 Be7 f8Q Ke6 Qa3 b2 Qf4 Nf6+ Kh3 Nd5 Kg4 Bg3 Bh3 e1B Qc5 Nb6 Qa4 Nc6 Qcb5 Na5 Bg5 c1B Qc5 c2 Bh4 Bc3 Bf1 Bcf6 Nc3 b1B Qf4 Ba3 Kh5 c1R Nd5 Bc2 Qcc4 Na4 Rg1 Rb8 a8B h1B Bg2 Bh2 Be1 Rb7 Nh4 Rbb1 Nf5 Bd7 Bf1 Bhe4 Bb4 Bc6 Rg5 Rf8 g8Q+ Rf7 Ng3 Bh7 Nf5 Bg7 Qe8 Baf6 Bh3 Qd7 Qb8 Rf8 Qc7 Rb8 Qc8 Rb5 Bd2 R5b2 Bb4 Ra2 Qd8 Qa7 d7 Qe3 Qc8 Qd2 Rg3 Qd4 Rb3 Qd3 Bc3 Nb2 Rb5 Na4 Bb4
b2bN2B/3N1n1n/2rb4/Qb3qQK/3B3p/r6q/3qN2P/1k1QrqRr b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 e4 dxe4 c4 bxc3 Ra2 f5 Bd3 e3 Be4 g6 Rb2 Qd5 Rb5 fxe4 f5 Qd7 f6 Qd8 Rf5 gxf5 Ke2 Kd7 g4 Kc6 d4 Kd5 g5 Kc4 f7 b5 g6 h5 g7 c5 a5 e5 d5 c2 a6 Kb3 a7 Ka2 d6 b4 d7 h4 Ba3 c1Q Qd4 b3 Nf3 c4 Qd5 c3 Qd6 f4 Qc5 b2 Qd6 c2 Re1 Qd2+ Kf1 c1Q Rd1 e2+ Kf2 e1B+ Kf1 e3 Qb6 e4 Ng5 f3 Qf6 f2 Kg2 f1B+ Kg1 e2 Ne6 e3 Qf3 Nc6 Qf6 Rh6 Bb4 Bb7 Bc5 Bd6 f8N Qc8 d8B Ne5 Qf3 Nf6 g8Q Nh7 Ng7+ Nf7 Bf6 Qh3 Bcd4 Beg3 Qh5 e1R Ne8 e2 Bh8 Bgf4 Kf2 Bg5 Qf3 Bd8 Nd7 Qc5 Qg7 Qcf5 Qg5 Ka1 Nc3+ b1Q Rc1 Bc6 Rd1 Bb5 Rc1 Bg2 Rd1 Rh1 Rg1 e1R+ Ne2+ Qdb2 Ke3 Qd1 Kf2 Kb1 Ke3 Qbd2+ Kf2 Rc8 a8Q Rc3 Qa4 Ra3 Qa5 Bf4 Qfh5 Ba8 Qhg4 Rc6 Q4h5 Qhd3 Kg2 Bd6 Qf3 Qe5 Kh3 Qc5 Kg4 Qcf5+ Kh5 Q3b3 Qg4 Qh3 Ng3 Qdf3 Ne2 Qf2 Qf3 Qff1 Qb3+ Qb2 Qba4 Qd2 Qd1+
6bq/1bB1R3/2k5/2nq1rbn/RB2Q1P1/Q2qq3/1b1pNB1K/1nR2rn1 b - - 0 1 legal: proof: d4 a5 g4 h5 e4 c5 b4 cxd4 f4 axb4 f5 h4 e5 g6 Nd2 f6 Ne4 fxe5 Ng3 hxg3 f6 e4 Bc4 Ra6 Be6 Ra8 Bf5 gxf5 Kf1 b5 Kg2 d5 h4 Kd7 c4 e5 a4 e3 f7 e4 h5 b3 a5 e2 h6 e1Q h7 b4 a6 f4 c5 d3 a7 e3 Rh4 b2 Kh1 b1B Rh6 d2 Rc6 b3 Ra2 e2 Ra5 d4 Rh6 b2 Kg2 d3 Kh1 f3 Ra2 g2+ Kh2 f2 Rh4 f1Q Ra6 Bb7 Rhh6 Ba2 Rhf6 b1N Ra4 Bg7 f8B Na6 Nh3 g1N Rff4 Nf6 Rae4 Nh5 Re7+ Kc6 Qb3 d1Q Be3 Bb2 Qa3 Bg8 Ra4 d2 Bf2 Qb3 Nf4 Qbd5 Qd3 Rc8 a8Q Rc7 Qa3 Rd7 Re3 Rf7 Re5 Rf5 Re7 Kb5 c6 Nc5 c7 Kc6 Bg3 Qff3 Bf2 Qfd3 c8R+ Qc7 Rb8 Qce5 Rbe8 Qee3 Rd8 Qf1 Rde8 e1B Ne2 Qc3 Rd8 Qdc4 Rd4 Qd5 Rdc4 Qg7 Rc1 Qgh6 Ng3 Qfd3 Ne2 Qf6 Bg3 Rf1 Bc7 Bh4 Qe8+ Qd7 Qg6 Q7d5 Qe4 Bg5 Qc3 Bf7 Qa3 Rg8 h8B Rg6 Be5 Bg8 Bc7 Qfd4 Bhe5 Rgf6 Bg3 R6f5 Bf2 Qf6 Bg7 Qh6 Bc3 Qh8 Bb4
bB2rb1R/6q1/3Nb1Q1/nq1Q1qB1/2R5/kn1p2K1/r2p2PB/1q1Q1qr1 b - - 0 1 legal: proof: e4 e5 a4 c5 h4 g5 d4 exd4 a5 gxh4 a6 f5 e5 c4 Bd3 cxd3 Nd2 bxa6 Ra2 a5 Ne4 fxe4 Ra1 a4 b4 Ke7 f4 a5 Kf2 h5 c4 d5 c5 h3 c6 d2 b5 h2 c7 h4 f5 e3+ Kf3 h3 b6 e2 e6 Kd6 e7 Kc5 e8Q Kb4 b7 e1Q f6 a3 f7 a4 Kf4 d3 Ne2 d4 Ng3 a2 Qc6 a3 Qe8 Qf2+ Qf3 d1B Rg1 h1Q Nh5 d2 Qe4 h2 Qe2 d3 Qe8 Qd7 Qe6 Qb5 Qc6 Nh6 Bb2 Nf5 Ng7 Nd4 Rc1 a1R Qb6 a2 Nf5 Nb3 Be5 Be6 c8Q Nc6 b8B Ka3 Nd6 Nca5 Qcd8 Be2 Rgd1 Qhf1 Rc4 h1Q Qg5 Qfc5 Kg3 Qhg1 Qd5 Bf3 Qh5 Rc1 Bf4 a1Q Bg5 Qg7 Re1 Be4 Qd1 Ra1 Qa6 Ra2 Re2 Rh1 Rf2 Qc8 Rf4 Qgb6 Rh4 Rg1 Rh8 Qcd7 Bc7 Re8 Bb8 Be7 f8B Qc8 Qf5 Ba8 Qg6 Qcc5 Qb7 Qcf5 Qd5 Qb7 Nf7 Bb4 Bfd6 Bc5 Be5 Bf8 Nd6 Qc8 Re4 Qc1 Rc4 Qa1 Kh4 Qb2 Bh2 Qb1 Kg3
1Q2q3/R1P2pn1/2B2bN1/b6b/1pb1Bqb1/r2N4/1nn1N3/QK1B1qrk b - - 0 1 illegal: No possible last move
1k1b3r/2R2bK1/rn5B/3b4/2P1BBp1/Q1pb1R2/QNn1b3/2r1bqQb b - - 0 1 legal: proof: c4 c5 b4 e5 d4 cxd4 g4 h5 f4 exf4 b5 hxg4 b6 axb6 Nh3 b5 Ng1 b4 Nc3 bxc3 Kf2 g5 e4 f5 h4 b5 a4 d5 h5 Kd7 a5 Kc7 e5 d3 h6 g3+ Kf3 g4+ Kg2 b4 e6 b3 h7 d2 a6 b2 a7 b1B e7 d4 e8Q d3 Rh6 f3+ Kh1 f4 Qb3 d1R Qbb5 d2 Qb3 f2 Kg2 f3+ Kh1 g2+ Kh2 Ne7 Kg3 Bd3 Kh4 Nbc6 Kh5 Nd4 Qb1 Nc2 Qb2 Be6 Qb1 Nc8 Qeb5 Nb6 Qa5 Be7 Rf6 Qf8 Ne2 g1B Bg2 f1B Qaa2 f2 Be4 Bg2 Kg6 f1B Rf3 Bf2 Nf4 Bd8 Qa3 Qf5+ Kg7 Bf7 Qba2 Bde2 Nd3 Bh1 Nb2 Be1 Rb1 Bfg2 Qa1 Bd3 Q1a2 Rc8 a8Q Rb8 Q8a5 Ra8 Q5c5+ Kb8 Qg1 Ra6 Ra1 Re8 h8B Qf4 Rh3 Qf1 Rf3 Rg8+ Kh7 Re8 Bg7 Rf8 Bh6 Rg8 Rh3 Rh8+ Kg7 Bf3 Bb7 B3d5 Rf3 Bg3 Ba8 Re1 Bb7 d1B Bcg5 B1e2 Bf4+ Ka7 Rd1 Bf2 Rd2 Rc1 Rd1 Be1 Bc6 Bde6 Be4 Bd5 Rd2 Bd1 Rh2 B1e2 Rh5 Ka8 Re5 Kb8 Re7+ Kc8 Rc7+ Kb8 Re3 Na8 Rg3 Nb6 Rf3
Q3Nb2/3KN1bR/2p4q/3Q2Q1/3BpkP1/brr3N1/1bnr1B1n/2b2bb1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 g5 a4 h5 e4 f5 g3 fxe4 a5 h4 a6 h3 Bg2 hxg2 f5 bxa6 Ra3 a5 Rf3 a4 Rf4 gxf4 Ke2 Kf7 d4 Kf6 h4 a5 b5 e5 d5 c6 h5 Kg5 b6 c3 f6 e3 Kf3 e2 Ke4 e1B d6 c2 f7 a3 d7 a2 h6 a1B h7 a4 b7 a3 Qe2 a2 Qd1 Qf6 d8Q Bh3 Q1d7 Nh6 Ba3 c1B Nc3 f3 Qa5 f2 Be7 f1R Bd8 Rf2 Nb5 Bab2 Ne2 g1B Bb6 a1B Nd6 Bf1 Ne8 Beb4 Qdd5 Na6 b8Q Ng4 Qac5 Nh2 g4 Qg7 Ng3 B4a3 Qb7 Rd8 Qa8 Qh6 Qb5 Rf6 Bf2 Nb4 Qbc5 Rg8 h8B Rf3 Qb5 Rc3 Qba5 Bg7 f8N Nc2 Ng6 Bgf8 Ne7 Rb8 Qac5 Rbb3 Qca5 Rg6 Bg7 Rd6 Qab5 Kh4 Kf5 e4 Bgd4 Rd8 Ke5 Kg5 Qbc5 Qh7 Ke6+ Kf4 Qca5 Qh6+ Bf6 Rdb8 Kd7 R8b4 Qac5 Rd4 Qca5 Rd2 B6d4 Rcd3 Bb6 Bbg7 Bbd4 Ba1b2 Qab5 Rdc3 Qba5 Nf3 Rh4 Nh2 Qac5 Qf6 Rh7 Qh6 Qh5 Re3 Qcd5 Rec3 Qhg5+
k6K/N6b/RR2PBNR/1nnn1r1p/bn1Q3Q/q3p1r1/r7/N3b1nn b - - 0 1 legal: proof: d4 e5 e4 a5 f4 exf4 h4 g5 b4 gxh4 e5 axb4 d5 c6 Bd3 cxd5 Be4 dxe4 Kf2 h5 a4 f5 c4 d5 g4 Kd7 g5 Kc6 c5 b5 g6 Kb7 a5 e3+ Kf3 d4 g7 d3 e6 d2 Ne2 h3 Re1 b3 Qc2 d1N Nd4 h2 Qc3 h1N Ra2 b4 Rf1 b2 Qc2 b3 Qd3 Nd7 Ra4 Ndf2 Rg1 Ngf6 g8Q Nd5 Qc2 Qe7 Rf1 Nd3 Qd2 N3b4 Nc3 b1B Ncb5 b2 Qg5 Rg8 c6+ Kb8 a6 Nc5 Qg3 Bd7 Na7 Be8 Qh4 Rg3+ Ke2 Bg7 Nc2 Bc3 Qd4 Be1 Na1 Be4 Ra3 b1N Rb3 Na3 Bb2 Nb5 Bc3 Bc2 Rb1 Ba4 Rb3 Bg6 Bb2 Rg5 Kf3 Bh7 Rg1 Rg7 Rg6 Qf8 Rh6 Rg5 Nc8 Ra7 c7+ Ka8 Ne7 Rg2 Ng6 Rg3+ Ke2 Qd6 c8N f3+ Kd1 f2 Ke2 f1N Bc3 Rb7 a7 f4 Rb2 Rg7 Rb1 Rg2+ Kf3 Ra2 Rb2 Nfg3 Rb1 Kb7 a8R Ne2 Ra6 Qf8 Na7 Ka8 Qc4 Qe7 Bf6 Qd6 Rb2 Qf8 Qd4 Ng1+ Kg2 f3+ Kh2 Ne2 Kh3 f2 Rb1 f1R Rb3 Nd6 Rb2 Rf5 Rb3 Nc2 Rbb6 Nb5 Nh8 Nec3 Qhf4 Rg3+ Kh4 N5e4 Qg4 Qa3 Qg5 Rf2 Qg4 Nc5 Kg5 Rgf3 Qh3 Ncb4 Qg3 Ne2 Qgh4 Bg8 Kg6 Ng1 Kg7 Bh7 Ng6 Rg3 Kh8 Rf1 Kg7 Rf5 Kh8
4b2K/Q1b1r3/4b2B/rRQ2Nk1/2prn3/q1BP1rp1/2q1B1RR/2r2n1r b - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Nc3 f3 Nd5 g3 Nf4 axb6 Qb3 b5 Qd1 b4 Ng2 fxg2 e4 Ke7 Ke2 Kf6 Ke3 c5 Kf4 b5 h4 g5+ Ke3 g4 Kf4 b3 a4 c3 a5 c2 a6 b2 h5 b1B a7 c4 h6 b4 h7 b3 Rh5 b2 Ra3 Qd3 Re5 Nh6 Rh5 Nd7 Rh2 Nf5 Ra5 Bd6+ Re5 Ne3 Nh3 g1R Qe2 g2 Qf2 g3 Ng5 Qa3 Ne6 Nc5 Nf8 Be6 Be2 Rd1 Qg1 Nf1 Ng6 Bc7 Ne7 Rhe8 Nf5 Re7 h8B+ Kg6 Qd4 g1R Qd6 f6 Rd5 Rh1 e5 Ne4 Rb5 Rb8 Qc5 Ra8 Nh6 f5 Rg2 Rd8 a8Q Rd4 Qaa7 Re1 Bg4 Re3 Be2 Rb3 Rh2 Rb4 Bg7 Ra4 d3 Ra5 Bd2 c1R Bc3 Bc2 Bf8 b1Q Rg2 Bg8 Bg7 Ba4 Rh2 Bd8 e6 Qc2 Ke5 f4 Nf5 f3 Bh6 f2 Rg2 Rf7 e7 Bc7+ Nd6 Rh7 e8R Be6 Rh8 Re7 Rh7 Ne3 Rh8 f1R Rh7 Rf3 Rh8 Bb6 Nf5 Nf1 Rh7 Nd6 Rh8 Bc7 Rh7 Kh5 Kf6 Kg4 Rh8 Ne4+ Kg6 Bf7+ Kh7 Kh5 Rb1 Bae8 Rb5 Kg4 Kg7 Kh5 Rh7 Be6+ Kh8 Kg4 Bg7 Kf4 Rhh2 Kg5 Bh6+
1R2n3/4BkQ1/Rq2Nnpq/3bB3/q7/P1q1rp2/1qQb2Br/1R1Kb1q1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 h4 d5 e4 f5 c4 b5 h5 d3 h6 d4 e5 d2+ Ke2 f4 c5 b3 c6 b4 h7 b2 c7 b1Q e6 b3 a3 g6 e7 b2 Qc2 d3+ Kf3 d1Q+ Qe2 d2 Rh3 Qe1 Qe4 d1Q+ Ne2 g1Q Qd3 g2 Rh2 Qc3 Bd2 Na6 Rh1 Qbc1 Ra2 b1Q Ra1 Bh6 Rh5 Qa4 Ra5 Qbb2 Rb1 Nf6 Nd4 Kf7 Ke2 Be6 e8R Bd5 c8Q Qdb6 Ne6 Nc7 Ra6 Bg5 Rd8 Nce8 Qc2 Bh4 Be3 Be1 Bc5 Qc1e3+ Kd1 f3 Bd6 Qh6 Be7 Ra7 Qa8 Rc7 Rc8 Rc4 Rb8 Re4 Qc6 Re3 Qc8 Qgh2 Qd8 g1B Bg2 Bgf2 Qc8 Bd2 Qd8 Bfe1 Qc8 Rf8 h8B Qg1 Bg7 Rh8 Qd8 Nh7 Be5 Nhf6 Qc8 Qf8 Qd8 Rh2 Qc8 Qh6 Qd8 Nc7 Qh8 Nce8 Qg7+
R7/2q1Q1pB/rnB1Q1bn/nnr2BN1/1Q1Pb1r1/2k4p/K6b/b3R1n1 b - - 0 1 illegal: No proof kernel
2Q3rr/P4Q2/Qq1kq1rq/1b2BnR1/2R5/3pqnpq/1BRb1q2/1K2N3 b - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 b6 e4 Bh3 axb6 Nd2 b5 Bg4 hxg4 Ndf3 exf3 Be3 b4 Bd2 Ra5 Bc1 Ra8 Kd2 Ke7 a4 b5 c4 f5 Kc2 d5 e4 d3+ Kb2 b3 h4 b4 g6 d2 c5 g3 h5 f2 c6 f1R e5 d4 g7 d3 e6 f3 a5 f4 a6 f2 a7 f3 c7 Nh6 g8Q Qd5 Qe2 d1Q Qg4 Qd2+ Kb1 b2 Qf5 Bd7 c8Q Kd6 e7 Bb5 e8R Qe6 Qb7 Nd7 Ra3 Ne5 Rh4 Qe3 Qf6 Nf5 Qc2 Bh6 Re7 Rag8 Rb3 Re1 Rh7 f1Q Rf7 f2 Rc4 Qh3 Nf3 f1Q Rbc3 Qff2 Rg7 Rh1 Ne1 Nf3 Rg5 Rg6 Ka2 Rhg8 Qff7 Rh2 Qc8 Rh1 Qa4 b3+ Ka3 b1Q Rc2 b2 Qaa6+ Ke5 Kb3 Qa2+ Kc3 b1Q Bb2 Qaa1 Kb3+ Kd5 Kc3 Qa5+ Kb3 Qab6 Ka3 Qbc1 Ka2 Qcd2 Ka1 Kd6 Kb1 Bg7 h6 Bc3 h7 Qc1+ Ka2 Bd2 h8B Rh2 Ng2 Qh1 Ne1 Qh6 Kb1 Qhf1 Rc5 Qfh3 R5c4 Q3h4 R2c3 Qf8 Qce8 Qg4 Bg7 Rhh8 Qec8 Qh3 Bd4 Qg7 Rc2 Qgh6 Be5+
KN3qR1/2rQb1Q1/R3k1Bq/r1B5/q7/Bpq1pP1R/q1n3n1/b1bb4 b - - 0 1 illegal: No possible last move
4N1kr/r1qb3B/3n3r/3rr2q/NK1pRq1R/1RN3b1/q1P2n1p/1QQ5 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kd2 f5 g4 Kf7 e4 d5 g5 b5 a5 h5 a6 d3 Kc3 f3 a7 h3 e5 d4+ Kb3 h4 Ne2 b4 Nf4 a2 Qe1 d2 Qf2 d1Q Bb5 h2 Nh3 f4 Re1 h1R Ba6 Ne7 e6+ Kg8 g6 Bd7 g7 Nf5 e7 Nc6 e8N Qc7 Qf1 f2 Nd6 f3 Nc8 Bd6 Re3 Ne5 Ng1 h3 Qe1 f1R Re2 f2 Re3 Nd3 Nc3 Qh5 Qb1 Bg3 Nd6 Rd8 a8R Re1 Rb8 f1Q Na4 Nf2 Ne8 Nd6 Re4 Rh6 Rh4 Re5 Bd3 Qc1 Rb6 Qf4 Ne2 Rh8 Nec3 Rh6 Kb2 b3 Ka3 b2 Rb3 Rh8 Qc1 b1Q Kb4 Qb2 Rb1 a1R Bg6 Ra3 Ra1 Qa2 Qb1 h2 Bd3 Rhe1 Bh7+ Kf7 Qc1 Rd5 Qb1 Ree5 Qc1 Ra8 Qb1 Ra7 g8Q+ Ke7 Qg5+ Kf7 Qf1 Ra6 Re1 Rc6 Re4 Kf8 Nc5 Ra7 Qb1 Rca6 Bg6 Kg8 N5a4 Qf5 Qgc1 Qf4 Qd1 Nc4 Bf5 Rah6 Qdc1 Nd6 Bh7+
nrq1k1nb/N2q2qQ/8/rBb4B/3p2bp/1Q5P/1RB1b1qr/1R2KQ2 b - - 0 1 illegal: No possible last move
3rb2n/Q2q3B/r1b1p1bq/N3Q1bR/pr1r3R/1qn2PK1/4Q3/4BB1k b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 e4 b5 h4 bxa4 e5 gxh4 e6 fxe6 Nd2 e5 Nb3 axb3 Bb5 e4 Ba6 Qb6 Bf1 Qd8 c4 Kf7 g4 Kf6 g5+ Ke5 c5 d5 b5 h5 b6 a5 b7 e3 c6 Ke4 g6 a4 c7 b2 g7 b1B Ba3 e6 Ra2 h3 Rd2 h2 Nf3 e2 Bb2 d3 Nh4 d4 Qb3 Nd7 b8Q Nh6 g8B Nc5 Qc2 Be7 Qc3 Bg5 Nf3 h4 Rc2 h3 Bc1 Qd7 Ne5 Ra6 Qbb4 Nf7 Nc6 Kf3 Be3 Ne4 Qcc4 Nc3 Rg1 h1Q Qbb5 h2 Bh7 Rd8 Nb4 Nh8 Kd2 e1R Bf4 Re4 Rg4 Bb7 c8Q Bc6 Be3 Rf4 Rh4 Re4 Be2+ Kg2 Qa8 Kg1 Ke1 Qf3 Rc1 Kh1 Qe5 d2+ Kf1 d1B Qa7 d3 Bd2 Qe3 Be1 d2 Bd3 Bh5 f3 d1R Qa2 Qb6 Qe2 Be8 Bc4 Red4 Kf2 Bbg6 Kg3 R1d2 Rd1 Rb2 Rd3 Rb3 Re3 Rb1 Ree4 Qb8 Rh5 Qbb7 Reh4 Qb5 Nd3 Rb4 Nb2 Qbd5 Bd3 Qb3 Nc4 Kg1 Q2e4 h1Q Bf1 Qh2+ Kg4 Qd2 Na5 Qc1 Kh3 Kh1 Qe2 Qf4 Nc4 Qf8 Na5 Qh6 Kg3+
q2R4/R2Qb2q/nk1P1B1p/7Q/3pN1R1/n1r1r2B/1n3rb1/Kb1rQ1b1 b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 b5 gxh4 b6 axb6 Ba3 b5 Bc1 b4 c4 d6 c5 dxc5 d3 Bg4 d4 Bc8 d5 Nd7 Nc3 Nb8 Nb5 Ra5 Nd4 cxd4 Nh3 Ra3 Ng1 Ra8 Kd2 Kd7 Kc2 f5 Kb2 b5 e4 c5 g4 Kc7 a4 b3 e5 h3 e6 h2 a5 f3 e7 f4 e8Q c4 a6 b4 d6+ Kb6 g5 f2 g6 f3 g7 c3+ Kb1 b2 a7 c2+ Ka2 b1N Bh6 c1B Bh3 f1R Qee1 f2 Qdd2 Na6 Qg5 Ne7 g8Q Bb7 Qh4 Na3 Bg7 Bg2 Qe3 Nc8 Qd2 Rd1 Qe2 f1R Qee6 Be3 Qg3 b3+ Kb2 Be7 Bh6 Rf2+ Ne2 Qc7 Qd8 Re8 Bg5 h6 Rg1 h1Q Qdd7 Qb7 Qc4 Qe4 Qc1 Qh7 Qh4 Rb8 a8R Rb7 Ra2 Rc7 Ka1 Rc4 Ra7 Rc3 Rc2 b2+ Ka2 b1B+ Ka1 Ka5 Bf6 Nb6 Ng3 Na4 Qh5+ Kb6 Ne4 Nb2 Qd2 Bf4 Qe1 Bh2 Rf1 Bg1 Rc1 Re2 Rf4 Rf8 Rg4 Ree3 Bh4 Rf2 Bf6 Qh2 Rc2 Qe5 Rc1 Qd5 Rc2 Qa8 Rc1 Rcd3 Rc8 Rc3 Rd8
1bNN1K1k/1b1q4/1P2r1R1/1Qr3n1/1q2B3/1q1npn1b/1R1R3p/1b2QNq1 b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 b5 a4 bxa4 b3 c5 h5 cxd4 h6 a3 Bb2 axb2 Be2 gxh6 Bb5 h5 Bf1 h4 Kd2 Kf7 c4 Kg7 g4 h5 f4 d5 f5 e5 b4 a5 b5 h3 g5 a4 c5 e3+ Kd3 e2 c6 e1N+ Kd2 h4 c7 d3 Kc3 a3 g6 d2 b6 a2 Qg4 d1Q Qg2 d4+ Kc4 e4 Kb5 d3 Qg3 d2 Nf3 e3 Bg2 h2 Nc3 b1B Bf1 h3 Ne2 Qe7 Bg2 Rh6 f6+ Kh8 f7 Nc6 Ng5 Nf6 Ne6 Nb4 Be4 Nh7 Nd8 Nf3 Qe1 Qb3 Ng3 d1Q Nf1 Nd3+ Kc6 Ra5 Rg1 h1B Rg2 h2 Rb2 Bg4 c8N Qeb4 Kc7 Rf5 Kd7 Bh3 Ke8 Nhg5 Rd2 Bd6 f8Q+ Qg8 Rb2 Bb8 Rd2 Rc5 Ke7 B3g2 Qf5 Qgb3 Kf8 Bh3 Rb2 Rh7 Qd7 Re7 Qb5 Re6 Rd2 Nf2 Rb2 Qd7 Rd2 Nd3 Rb2 Bc2 Rd1 a1Q Rd2 Qd1 Bd5 Bb1 g7+ Kh7 g8R B1g2 Rg6 Kh8 Qe2 Qe1 Ba8 Qf2 Qe1 Qg1 Na7 Nfe5 Nc8 Bb7 Qc6 Nef3 Qb5 Ba6 Bd5 Bb7 Be4
2BQ2R1/1n1r4/3P1n2/2r1nn1n/Qq1p1r2/1pQb4/rB1B2nR/N1K1bk2 b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 g5 axb4 g6 hxg6 Ba3 g5 Bc1 g4 c4 d6 c5 dxc5 d3 Ra4 d4 Ra8 d5 Na6 Nd2 Nb8 Nb3 Kd7 Nd4 cxd4 Bd2 Ke7 Bc1 Ke8 Kd2 Ke7 a4 Kd6 h4 Kc5 e4 b5 h5 g5 h6 f5 h7 b3 a5 b2 e5 b1R e6 f3 e7 g3 e8Q f2 a6 b4 a7 g2 Qe5 g4 Ra2 b3 Rh2 g3 Rh6 f4 Ne2 Kc4 Ra5 g1N Ba3 c5 Rh5 f3 Rh3 g2 Nc3+ Ne2 Rh4 g1N Qc2 Bf5 Qf4 Bd3 Qf7 Qe7 Bg2 Nc6 Bf1 Nf6 Qh5 Nf4 Qa2 Ng2 Ne4 Nd8 Ng5 Nb7 Be2 Rf1 Qb2 Rd8 a8Q Rd7 Rh1 Ra1 Qb8 Ra2 Kd1 f1N Qa1 f2 Qhe8 Nf3 Rg1 Ng3 Kc1 f1N Bb2 Ne5 Nf3 Ngh5 Qbd8 Nfg3 Ne1 Nf5 Bg4 Rg8 Bh3 Rg4 h8B Rf4 Nc2 Bh6 Bg7 Bg5 Qh8 Bh4 Qhe8 Be1 Bh6 Qd6 Ra7 Qb6 d6 Qb4 Kb1 Be2 Bg4 Kd3 Kc1 c4 Ra8 c3 Rh1 Bf1 Rh2 Be2 Bh3 Bf1 Rc8 Ke2 Bg4+ Kf2 Bg5 Bd3 Ra8 Rf3 Bd2 Rf4 Rb8 Kf1 Rc8 Ra6 Qa4 Ra8 Na1 c2 Qf7 Ra6 Qc4 Ra8 Qc3 Ra7 Qb5 Ra2 Qa4 Nd5 Qc5 Rc7 Qf6 Nh6 Rg8 Rg7 Qf8 Ndf6 Bc8 Nf5 Qd8 Rd7 Bbc3 Ra3 Kb2 c1R Qcc6 Rc2+ Kb1 Raa2 Bb2 Be2 Qc4 Rc3 Qd3 Rc5 Qc3 Bd3+ Kc1
R7/1r2n1KN/qQN1B1p1/2p1N1P1/p2R1q2/n3nqRQ/6n1/2bkrbn1 b - - 0 1 legal: proof: b4 d5 a4 b5 c4 dxc4 g4 e5 f4 exf4 a5 h5 Bb2 h4 a6 Bxb4 Bf6 Bf8 Bd4 b4 Bf2 b3 Bg3 hxg3 Na3 Bxa6 Nb1 Bc8 d4 Kd7 Kd2 Kc6 Kc3 Kb5 e4 f5 h4 c5 e5 a5 h5 g6 d5 b2 h6 a4 h7 g2 d6 f3 d7 f4 e6 f2 e7 f3 e8R Ne7 Rh5 Nbc6 Qd2 Ra7 Rd5 Na5 Qe1 Ba6 Rf5 Qa8 d8N Bh6 Nc6 Bc1 g5 Rb7 Ne2 g1N Bh3 f1Q Nd2 f2 Nf4 b1N+ Kc2 c3 Qe6 Qd1+ Kd3 f1N Ke4 c2 Ke5 Qf3 Kf6 Nc4 Nd5 Nba3 Kg7 Nfe3 Rf4 Ng2 Rd4 Nce3 Nf6 Qc8 Red8 Re8 h8Q Qa8 Nc4 Qa7 N6e5 Kb4 Na5+ Kc3 Ra8 Bf1 Nac6 Qa6 Nh7 Kb2 Qd6 Kb3 Be6+ Kc3 Nd3 Kd2 Ra2 Kd1 Nde5+ Bd2 Qd8 c1Q Qb6 Qcc4 Rb2 Qc1 Rbb4 Qcc4 Rg4 Bc1 Rg3 Qd4 Qf8 Qdf4 Qf5 Rd8 Qh3 Rd2 Qh2 Re2 Qh3 Re1 Rd4+
k1n1N1Qr/3bqPRr/3pr3/3r1b2/nN1r4/1K5p/Q1BB3p/1Qb3qN b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ke1 b4 Ra3 bxa3 Kd2 h5 g4 b5 c4 e5 Kc2 b4 f4 a2 g5 a1R g6 e3 f5 d3+ Kb2 d2 c5 b3 f6 h3 c6 h4 g7 e4 a5 e2 c7 e1R a6 h2 a7 h3 Nc3 e3 Na2 d6 f7+ Kd7 Qe2 Kc6 Ka3 Kb7 Qf2 d1R Bd2 e2 Be3 b2 Ka4 b1B Qf6 Bbf5 Qg6 Bcd7+ Kb3 Rd4 Nb4 Qe7 Bd2 Na6 c8N Red1 Nb6 e1Q Bd3 Rh7 Ne2 Qg1 Bc2 Ra4 Ng3 Nc5+ Kb2 Re4 N6d5 Re6 Nf6 Rc8 Ne8 Ka8 Kc3 Ra5 Kb2 Na4+ Ka3 Rd5 Kb3 Qf2 Re1 Qg1 Nh1 Rb8 Bh6 R1d4 Bd2 Qh4 Rf1 Ne7 g8Q Bh6 Rf3 Nc8 Rg3 Qe7 Rg5 Bg4 Qe4 Bf5 Rg7 Bf4 Qe1 Bh6 Qb1 Bg5 Be1 Bc1 Bc3 Qf6 Bd2 Qe7 Rg3 Kb7 Qh8 Nb2 Nf6 Nb6 Rg7 Rg8 Ne8 Nc8 Rg6 Rf8 Qg7 Rfh8 a8Q+ Kb6 Qa3 Kb7 Qg8 Na4 Rg7 Ka8 Qaa2
1r3rQK/2B2p1p/qNq1qR1k/1pQbn3/4q3/2R1b1bP/2N1R1nQ/6q1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Bd3 f5 Be2 f4 Bf3 exf3 Kf2 e5 a4 c5 d4 e4 g4 c4 h3 c2 d5 c3 a5 Be6 a6 Qd6 g5 Nh6 g6 Nd7 g7 Nf5 g8Q Nh4 a7 Ng2 Ra2 Rb8 a8R Ne5 Qd4 b5 Qb4 Qa6 d6 Bd5 Bd2 c1Q Qc5 c2 Nc3 Qb1 Na4 c1Q Ne2 Qc4 Qg3 Bh6 Qh2 Kf8 d7+ Kg7 d8Q Rf8 Ba5 Bg5 Rf1 Kh6 Bc7 e3+ Kg1 Qe6 Nb6 Qbe4 Nd4 e2 Nc2 e1B R8a3 Bg3 Rc3 Qa4 Rf2 Qa6 Re2 f2+ Kh1 Rh8 Qg8 f3 Ra1 Be3 Ra4 Q4g6 Rf4 Rf8 Rf6 f1Q+ Qg1 Qf2 Qh2 Qe1+ Qg1 Bh4 Kh2 f2 Qh1 f1Q Qg1 Qb1 Qh1 Bhg5 Kg3 Qg1 Qh2 Qc6 Rf3 Qe4 Rf5 Qb3 Rf3 Ng6 Rf6 Bgf4+ Kg4 Bg3+ Rf4 Qd4 Kf5 Ne5 Rf3 Be6+ Kf6 Qde4 Qe7 Bd5+ Qd6 Kh5 Kg7 Rb8 Qc5 Kg5 Qe8 Rf8 Rf6 Be6 Qd7 Qbd5 Na4 Qdd6 Nb6 Bd5 Qe6 Rfc8 Qe8 Qe6 Qg8 Rf8 Kh8+ Kh5 Rf5+ Kh6 Rf6+
1n1r1QNq/1P1Q1Q2/1p2pB1q/2R1n1Bq/b2b1KBk/3p3q/6r1/qr2N3 b - - 0 1 illegal: No possible last move
1q5n/b3r1nN/1NNrn1b1/nRp4B/p2Q1nR1/P1kn4/5p1n/K5QQ b - - 0 1 legal: proof: f4 e5 d4 exf4 g4 h5 c4 hxg4 c5 b6 Bh3 bxc5 Bf1 cxd4 Be3 d3 Bf2 Ne7 Bh4 Ng8 Bg3 fxg3 Kd2 Ke7 Kc1 Ke6 h4 Kd5 e4+ Kc4 b4 f5 Kb2 a5 e5 g5 h5 d5 e6 a4 h6 f4 a3 f3 h7 f2 e7 g2 e8Q d4 b5 g3 b6 g4 b7 Nc6 b8Q Nge7 Qd2 Na5 Qa7 Bf5 Ka2 Qb8 Rh2 Bg6 Qb7 Ra6 Qbb2 Rd6 Nf3 g1N Qe3 g2 Nc3 g3 Qe1 Nh3 Nb5 g1N Rb1 g2 Qd8 Ne2 Qed2 g1N Qe1 d2 Nc3 d1N Ne4 d3 Nd4 d2 Rh1 Ng5 Qa1 Ne3 Rb6 d1N Nf6 Ne6 Rb5 Nb2 Rh4 Nd3 Nd5 N3f5 Nc6+ N2f4 Be2 Nfg7 Rg4 Nf3 Qh1 Nh2 Qag1 Rg8 Nb6+ Kc3 Nd4 c6 h8N c5 Nf7 Rh8 Rg5 Rh7 Rg4 Rd5 Qd1 Ngf5 Rb2 Nc8 Rg1 Qa7 Kb1 Ncd6 Ng5 Nf7 Ka2 Nh8 Rb5 Bd6 Bh5 Bb8 Nc6 Re7 Nh7 Nfg7 Rg4 Qc7 Qdg1 Ba7 Qd7 Qb8 Ka1 Rd4 Qd6 Rd5 Qe5+ Rd4 Qe3 Rd6 Qd4+
nr2B3/1b1K4/q3p3/qkb2NQ1/3b2pr/n1RN3q/rNPp3R/1QQ4r b - - 0 1 legal: proof: d4 a5 g4 c5 e4 cxd4 f4 f5 b4 axb4 g5 fxe4 f5 h6 f6 gxf6 g6 f5 Bg5 hxg5 Bg2 f4 Bh3 Rh6 Bf1 Rh8 Ke2 b5 h4 d5 a4 Kd7 h5 Kc6 g7 b3 h6 f3+ Kf2 d3 Kg3 e3 a5 f2 h7 e2 a6 e1B a7 e6 Kg4 d4 Ra4 d2 Nf3 b4 Ba6 f1Q Rg1 d3 Ra5 b2 Ra4 b3 Bc4 Nd7 Rh1 Nh6+ Kh5 g4 Kg6 Nf7 g8Q Qh3 Qc1 d1R Ra6+ Nb6 Ra3 d2 Nh4 Nd6 Rh2 Bf2 Nc3 b1Q Na4 b2 Nf5 Qa1 Rc3 b1R Nb2 Nb5 Kf7 Qa6 Qg5 Na3 Bf1+ B8c5 Bb5+ Kc7 Ba4 Rh1 Be8 Bb7 Nd3 Rb8 a8Q Qd5 Nb2 Bd4 Qa7 Na8 Qb6+ Kc8 Qb3 Kc7 Qa2 Ra1 Qab1 Bg1 Kf6 Kb6 Kf7 Bcd4 Ke7 Qda5 Kd6 Ra2 Kd7 Rg8 h8N Kb5 Ng6 Rh8 Nf4 Rh4 Nfd3 Bc5 Qg7 Bgd4 Qg5
4bQ1r/1q1Q1prB/p1n1q3/2N1kp2/2PnNB1n/KB1q4/R4b2/2Q1n2b b - - 0 1 legal: proof: b4 c5 f4 b5 a4 bxa4 h4 g5 d4 cxd4 f5 gxh4 f6 exf6 Ra3 f5 Rb3 axb3 Kd2 Ke7 g4 Kf6 e4 d5 c4 h5 b5 a6 g5+ Ke5 g6 h3 b6 h4 b7 b2 Kc2 d3+ Kb3 d2 g7 h2 Ne2 d4 Nbc3 b1N Ng3 d3 Qe2 d1N Qh5 d2 Ba3 h3 Qf3 Ne7 g8B Qb6+ Ka4 Nec6 Qh5 Bc5 Bc1 Ne3 Bh7 Ng2 Be2 Bd7 Bd1 Ne1 Qg5 Be8 Bb3 d1Q Be3 Qd3 Bf4+ Kd4 e5 Nd2 e6 Ndf3 e7 Nh4 Rg1 h1B Nce4 h2 Rg2 Rg8 Ra2 Rg7 Bc1 Ke5 Qd2 Nb4+ Ka3 Bf2 Nc5 N4c6 Nge4 Nd4 Qb2 Nc6 b8Q+ Qc7 Bg5 Qd6 Qb4 Qe6 Qc1 Bd7 Qb5 Rh8 Qb7 Be8 Qd7 Qb1 Be3 Qd3 Rc2 Bg2 Bg6 h1Q Nf6 Na5 Ra2 Bc6 Bh7 Qg2 Qa7 Bed7 e8Q Bd5 Qg8 Be8 Qf8 Bb7 Bd2 Qgc6 Bg5 Qcc8 Bd2 Bh1 Nfe4 Nac6 Qd7 Qb7 Bf4#
1k1NRn2/2nQnbq1/1Prr4/p4q2/K3B3/prB3Rp/2R2Q2/3rbn1B b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 d4 cxd4 h5 bxa4 Nc3 dxc3 h6 gxh6 Rh3 h5 Rh1 h4 b4 a5 g4 h5 e4 f5 e5 d5 e6 h3 c5 a3 c6 c2 Kd2 f3 Kc3 f4 Kb3 h4 b5 f2 c7 h2 g5 f3 b6 d4 e7 Kd7 e8R d3 g6 d2 g7 Ne7 Bg2 f1N g8B f2 Rb1 Ne3 Bc4 f1N Bb7 N3d5 Qe1 d1R Bf4 c1R Be2 Rc6 Qd2 h3 Qc2 Rg8 Qc5 Rg3+ Ka4 Rb3 Bd2 Bh6 Rh8 Qg8 Rc1 Qg7 Bc3 Bd2 Nf3 Be1 Rg1 h1Q Ng5 Qf3 Qf2 Qf5 Nf7 Ra7 Ba8 Ba6 Bd3 Bc4 Nd8 Kc8 Rg8 Nd7 Re8 Nf8 Be4 Rd6 Bc6 Rb7 Rg3 Ra7 Bb5 Rc6 Rc2 Ra8 Nf7+ Kb7 Bh1 Rd8 Be4 Rdd6 Nd8+ Ka8 Bh1 Be2 Bc4 Bh5 Bd3 Bf7 Bde4 Nb4 Bd5 Na6 c8Q+ Nb8 Qd7 Na6 Be5 Kb8 Bc3 Nc7 Bde4
1K2B3/1pQN3N/1pb2p1B/B1R1nPrQ/q2b1q1r/5nn1/1n3r2/1kN1r3 b - - 0 1 legal: proof: d4 h5 b4 c5 b5 cxd4 b6 axb6 e3 dxe3 c4 d5 a4 Na6 g4 hxg4 c5 Nb8 Ra2 Qd7 Rc2 Qd8 Rc4 dxc4 Ke2 g5 f4 e5 h4 Ke7 a5 Kf6 c6 Kf5 h5 Ke4 h6 f6 h7 g3 c7 g2 a6 g4 a7 g3 Bd2 c3 Rh6 c2 Rh5 c1Q Nf3 g1R Bb4 g2 Rh6 Qe8 Rg6 Ne7 Ba5 Nd7 Rg5 Nf5 Rh5 Bc5 Nbd2+ Kd5 Kd3 e2 Nb3 e1R Ng5 Ng3 Qg4 Bd4 Be2 Rgf1 Bd1 Rb8 a8N g1N Be2 Rg8 h8B Rf2 Bg7 Nf3 Bh6 Rg6 Nh7 Rg5 f5 Qf4 Nc1 Kc5 Rh1 Kb5 Qh3 Ka4 Kc4 Ka3 Kd5 Kb2 Qh5 e4 Bb5 Nde5 Kd6 Bd7 c8Q e3 Nc7 e2 Ne6 Kb1 Nc5 Bc6 Qc7 Rd8+ Nd7 Ra8 Bb4 Ra4 Ba5 Qa8 Bc4 Rb4 Bf7 Ra4 Be8 Rc4 Bc3 Qa4 Ba5 Rd1 Qf7 e1N Nd3 Rcc1 Qd8 Nc2 Kc7 Na3 Qh5 Nac4 Kb8 Nb2 Qc7 Rdf1 Rg1 Rh2 Rg2 Rce1 Rc2 Rff2 Nc1 Rh4 Rc5
1b1q2n1/2N1pK2/QP3nQp/B7/3n1p1k/2Q2rR1/N1p1Brrb/1N1b1q2 b - - 0 1 legal: proof: c4 d5 a4 dxc4 h4 g5 a5 gxh4 a6 bxa6 Qc2 a5 Qd1 a4 e4 f6 e5 fxe5 f3 Bg7 f4 Bf8 b4 Nh6 f5 Ng8 Ra3 Bd7 Rf3 Bc8 Rf4 exf4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 g4 a5 d4 c3 d5 a3 d6 h3 d7 a4 Ke6 h2 b5 a2 b6 a1N f6 c4 f7 a3 Qd6 a2 Be3 Qe8 Qd3 Nc2 Bc5 a1B Ne2 Ra2 Qg3 Bg7 f8N Be5 Ng1 Nh6 Bb4 Rg8 Qd3 Kh4 g5 Ba6 d8Q Nd7 g6 Bb8 g7 Nf6 Q8d7 Qd8 Ne2 Bb7 Na3 Bf3 Nc1 Bd1 Rg1 h1R Bc5 Rh3 Bd4 Rf3 Qc8 Be2 Nb5 Bd1 Qe3 Bb2 Rg6 Ba3 Qa6 Bb4 Na3 Bc5 Be5 Rb2 Qd2 Bg1 Bd4 Bh2 Nb1 Rb5 Be3 Rb2 Rg5 Nb4 Na2 Nc6 Qd4 Re2 Rg2 Ref2 Bd2 c2 Ba5 c1Q Qa7 c3 Be2 Ba4 Qa6 Qf1 Rg6 Bd1 Qc5 c2 Qc3 Nf5 Kf7 Ncd4 Ne6 Nb5 Nc7 Nh6+ Ke6 Nd4+ Ke5 Rf8 g8Q Rf7 Qe8 Rg7 Rg1 Rgg3 Qg6 Nhg8 Rg2 h6 Rg1 Nc6+ Ke6 Nd4+ Kf7 Rh3 Rg5 Rhg3 Nb4 Rg4 Na2 Rgg2 Rg3
3k2b1/K3p3/1npn1nP1/b1Nr4/qQppQ3/pNBrN3/1n1n4/B1R3Q1 b - - 0 1 illegal: No proof kernel
1r2nBr1/p1p2Q1q/2Qp2nB/K2n3B/RNN5/p3q1N1/p1p2P2/1k2b2b b - - 0 1 illegal: Other
r5Nq/2nBnKb1/2B5/3rr3/R2NRb1q/2n5/P1bbN3/Bkbr1Rq1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Qd3 h4 Bc1 g2 Qg3 hxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 h4 b5 e4+ d3 c3 d5+ Ke5 g5 h5 f5 h6 g4 h7 b3 Rh2 b4 Rh6 d4 Rf6 b2 Rf7 f4 Nf3 g1B Bh3 d2 Rg7 Kd3 c4 Kc2 c5 d1R c6 b3 c7 g2 Nbd2 b1N Rf7 b2 Ng5 d3 Rd7 g3 Ke6 f3 e5 f2 Nb3 f1Q Nd2 Bg7 Ngf3 Qh4 Nb3 d2 Nh2 Na6 Nf3 Nc3 Nh2 b1Q Bb2 Qf8 Ng4 Bh2 Nf6 g1B Bg2 Be3 Bc6 Ne7 Ng8 Qd8 Kf7 g2 e6 g1B Rd5 Bhf4 Rd4 Re1 Rb4 d1R Ra4 Bb7 c8B Bd2 B8d7 Bge3 Nc1 Nc7 Nb3 Qc1 Rb1 Ra5 Ba1 Rd5 Nd4+ Kd3 Ne2 Kc2 Rbb4 Ba6 Re4 Kb1 Nd4 Bd3 Ne2 Ng6 e7 Bc2 e8N Ne7 Nd6 Qb8 Nf5 Qbb2 Nf6 Ra8 h8R Qb8 Rh7 Qh8 Ng8 Bg5 Ng1 Bef4 Nd4 Re3 Nge2 B5h6 Re6 Ree5 Rf6 Qa3 Rf5 Qc5 Rf6 Bc1 Rf5 Bfd2 Rf1 Bhf4 Rh6 Qa7 Re6 Qb6 Nf3 Qg1 Nfd4 Rh5 Re3 Rhe5 Re4
1br3n1/Qrr1P2B/n4N1B/4NN2/K4N2/p2rqrp1/1Np1rR2/5k1b b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 f4 dxc4 b5 e5 Na3 exf4 Rb1 b6 Rb4 axb4 a5 bxa5 Nb1 a4 Qb3 a3 Qd1 b3 Qxb3 Rh4 Qd1 Rh8 d4 Kd7 Kd2 Kd6 Kc2 Kd5 h4 Ke4 h5 c5 b6 f5 h6 g5 e3 g3 b7 g2 h7 f3 d5 f2 d6 g4 d7 g3 Rh6 f4 Rh3 c3 Kb3 f3 Rh1 c2 Bd2 c1R Ne2 Kd3 e4 g1R e5 Bd6 e6 Na6 b8N c4+ Ka4 c3 e7 Rg2 Rh2 Qb6 d8N Bb7 Nd7 Ra7 Nc6 Qe3 Nf6 Bb8 Ncd4 c2 Qe1 Rd1 Nbc3 Ba8 Bc1 Rc7 Nf5 Bd5 Bd2 Rb1 Nd1 Rbb7 Bc1 Be4 Qa5 Bd5 Rh1 Rh2 Bh3 f1R Qb6 f2 Qa7 Rg2 Rh2 Rh1 Bg4 f1R Bh5 Rf3 Bg6 Re1 Bd2 Rgg1 Rf2 Rgf1 Ng1 Re2 Nh3 Qe6 Bg5 Qe3 Bh6 Kd2 Nb2 Rd1 Nf4 Ke1 Bg7 Rd3 Bf8 Nh6 Bg7 Rd8 h8N Ng8 Nf7 Rdc8 Ne5 Be4 Bh7 Bd5 Rh2 Kf1 Bf8 Rff2 Bh6 Bh1 Rg2 Rf3 Rf2+
RqkNKb2/1N1rp3/2N1N3/7p/p3N1Q1/2bn2b1/2Pn3n/1bbB1q1R b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 fxe6 Nb1 e5 Ra3 e4 Ra2 Nh6 Ra1 Ng8 h4 gxh4 b4 a5 Kd2 a3 Qg4 d3 Kd1 a4 Ke1 Ra5 bxa5 d2+ Ke2 dxc1B Ke1 Bg5 Qd1 Bc1 Ke2 h5 f4 d5 g4 Kd7 a6 h3 f5 h2 g5 d4 f6 a2 a7 e3 Kd3 e2 Kc4 e1B Kd5 d3 a8N d2 f7 Bh6 f8N+ Ke8+ Nd7 Bg3 Ke6 Na6 g6 Bf8 g7 Nb4 Ne2 Nh6 g8N Nd3 Nbc3 Ng4 Rb1 a1B Ne4 Bc3 Nd4 Bb7 Rb4 Qb8 Nc7+ Kd8 Kf7 Bd5+ Nce6+ Kc8 Nc6 Ba2 Ke8 Bb1 Ndc5 Rh6 Qf3 d1Q Be2 Qf1 Nb7 Rg6 Rb3 Rg5 Bd1 Rd5 Nh6 Rd7 Rg1 h1N Nf7 Nh2 Qg4 Nhf2 Rh1 Nb2 Rb6 Nc4 Nfd8 Nd2 Ra6 Nd3 Ra8
5q2/rr2B2n/r3q1R1/R4BBn/1n2bqB1/4Q1p1/1nrPK1Bb/n5Nk b - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Nc3 f3 Nd5 g3 Nf4 axb6 Qb3 b5 Qd1 b4 Ng2 fxg2 a4 Kd7 h4 Kc6 e4 g5 e5 Kd5 a5 Ke4 e6 f5 e7 b5 e8B c5 h5 b3 a6 g4 a7 b4 h6 f4 h7 b2 Bg6+ Bf5 Ra5 b1R Be8 f3 Qb3 c3 Ne2 g1R Bg6 g2 Bf7 c4 Rh4 c2 Bg6 c3 Be8 Bd6 Kf2 Nf6 Bg6 Na6 Rh6 Bh2 Qa4 g3+ Ke1 Qf8 Nd4 b3 Qb5 b2 Ra2 f2+ Ke2 Nh5 Nc6 Nb4 Bf7 Ra1 Ne7 b1Q Bg6 Qb3 Qa6 Qe6 Ba3 c1N+ Kd1 Kf3 Bb2 Nb3+ Bc1 Be4 Qc6 Rb1 Qe8 Na1 Ra3 Rh1 Nd5 g1N Be2+ Kg2 Bg4 Nh3+ Ke2 c2 Ra4 Ng5 Ba3 Rhc1 Nc3 Kh1 Ra5 Rg8 h8B Nh7 Bf6 Rg7 Bg5 f1Q+ Ke3 Rb3 B6f5 Qf4+ Ke2 Rb2 Rf6 Rcb1 Rg6 c1N+ Ke1 Re7 Ne2 Rc2 Ng1 Ncd3+ Ke2 Rd7 Qe7 Nb2 Qc5 Rd6 Qd4 Ra6 Qe3 Rac8 a8B R8c7 Bd5 Rca7 Bc6 N4d3 Bae7 Nb4 Bd7 Rcc7 Ba4 Rbc1 Bd7 Rcb7 Bh3 Rc2 Bfg4 Qeg8 Bdf5 Qe6 Bg2+
4r1nb/P4nN1/1N1QnR1q/r1kN3q/Br1Nr3/1p3B2/1Kbqn3/r2N4 b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 e5 a4 exf4 Na3 c5 Nb1 cxd4 Ra3 h6 Rg3 f3 Bf4 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 Kd2 Ke7 Kc1 Kd6 h4 f5 e4 b5 c4 g4 e5+ Kc5 e6 d5 g7 f2 a5 g3 h5 g2 a6 b3 e7 d3 e8B d2+ Kb2 b4 h6 d4 h7 f3 Rh2 f4 Rh6 d3 Qc2 d1N+ Ka1 d2 Rg6 b2+ Ka2 Ne3 Bb5 d1Q Be8 Nc6 Qc3 Nd4 Rd6 Ng4 Qa3 N4h6 Bg6 Bf5 Bd3 f1Q Be8 f2 Ne2 g1N Ba4 f3 Be4 Qh3 Rf6 f1R Nbc3 f2 Bf3 Ne6 Nd4 b1R a7 Re1 Bh5 f1R Bf3 Qc1 Nd1 Nf7 Qd3 Ne2 Qa3 Ngh6 g8N Bg7 Ne7 Ng8 Nd5 Qch6 Qd3 Ra1+ Kb2 b3 Qd2 Q3h5 Qf4 Ne7 Qe5 Rf8 h8N Ng8 Ng6 Rb8 Nh4 Bc2 Nhf5 Bh8 Ng7 Re8 Qh2 Qa5 Qg3 Qad2 Qg6 Rb4 Qd3 Kd6 c5+ Ke5 c6 Kd6 c7 Kc5 c8N Rf2 Bh1 Rf5 Bf3 Re5 Ncb6 Re4 Bb5 Ra5 Ba4 Rg1 N1e3 Ra1 Nd1 Rh4 Qg6 Rf4 Qg3 Re4 Qd6+
3BNR2/n1bbr2n/Q2N4/2bk1NB1/1N1n1n2/bP3q2/Kb3Nrp/n5n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 c5 h5 cxd4 Rh2 e5 Rh1 exf4 g4 Bg7 Rh4 gxh4 g5 Ne7 g6 Rg8 Bg2 Rf8 Be4 Rh8 Bd3 Bf8 g7 Ng8 Bg6 hxg6 Ra3 Ba6 Rh3 Bb7 Rh1 Bc8 Kd2 Ke7 c4 Kd6 Kc2 f5 e4 a5 h6 f3 h7 d3+ Kc3 h3 b3 a3 Rh2 f2 Nf3 f1N Rc2 g5 Rg2 a4 Nh2 g4 Rc2 a2 Kb2 a1B+ Ka3 d2 Qe1 d1N Re2 g3 Qa5 g2 Bh6 g1B Nc3 f4 Qa6+ Nc6 Re3 f3 Re1 f2 Qb5 Nde3 Re2 Nf5 Bd2 N1e3 Na2 f1N Rg2 Nf6 g8N Ned5 Qa5 Nfd4 Qb6 Ng3 Nc3 Nf4 Re2 Ra7 Qb7 Bb2+ Ka2 a3 Ng4 h2 Rf2 Nge2 Ne7 Rg8 h8B Nh7 Ng6 Qf6 c5+ Ke6 e5 d5 Nb1 Bd7 Qa8 Rc7 Qd8 Na7 c6 Rb7 c7 Bd6 c8N Bc7 Nh4 Qf5 Nh6 Rg2 Nd6 Qh5 Nh6f5 Qf3 Nc3 Bc1 Rf1 Bf2 Bf6 Ng1 Nde4 Be3 Ka1 a2 Qc8 Ba3 Bd8 Rb5 Nh6 Nf5 Ng6 Nd3 Ne2 d4 Nf7 Qg4 Rf4 Qf3 Qa6+ Rb6 Nc5+ Kd5 Ng3 Re6 Nh1 Re8 Nh4 Bf2 Re4 Re6 B2g5 Nf4 Re3 d3 Re4 Re8 e6 Be3 e7 Bf2 Na4 Bfc5 Nb2 Nd4 Nf5 d2 Nf2 d1N Nbd3 Ne3 Re6 Bab4 Kb2 a1B+ Ka2 Nec2 Rb6 Bb2 Rf6 Rg8 e8N Na1 N7d6 B4a3 Rf7 Rg7 Rf8 Re7 Nb4+
RNR2N2/B1N2Q1N/1n3P1p/K1b3rr/3rn1r1/p1n2k2/1r1N1q2/r4bq1 b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 e4 b5 h4 bxa4 e5 gxh4 e6 fxe6 Be2 e5 Bc4 e4 Bb3 axb3 Kd2 Kf7 f4 Ke6 c4 Kf5 c5 d5 g3 e5 c6 a5 b5 d3 Kc3 h3 c7 b2 b6 e3 b7 Ke4 g4 d2 g5 a4 f5 a3 g6 h2 g7 d4+ Kc4 h6 Kb5 d3 Nf3 e2 Nh4 e1R Qa4+ Qd4 Qa5 d1N Qa6 d2 Qe6 Bc5 Ng2 Nf6 g8N Kf3 Nc3 b1R+ Bb2 e4 Rf1+ Qf2 Nf4 h1R Qf7 e3 Nfd5 e2 Ne4 Nbd7 b8N Ba6+ Ka5 Nc3 c8N d1R Nce7 Rd4 Ng6 Nb6 Nf8 Rh5 Nc7 Rh7 Bc1 Rg7 Be3 Rb2 Rc1 Rg4 Rc2 Ra1 Nd2+ Kg2 Rd1 Nfe4 Nf6 e1Q N6h7 Qeg1 f6 Bf1+ Nba6 Rad8 Nb8 R4d5 Bd4 Rdg5 Re1 Nd6 Re8 Nde4 Be3 Rd4 Rc8 Ncd5 Rc4 Ndc3 Rb4 Nbd5 Rb7 Nb6 Ra7 Kg3 Ra8 Rd6 Nfd7 Nba4 Nb6 Bd4+ Nb5 Rdd5 N6d7 Ba7 Bc5 Rd4 Ndf8 Kf4 Bb6 Kg3 Bd8 Bc5 Bb6 Kg2 Ba7 Nb6 Nc7 Kg3 Nb3 Kf3 Nd2+
4bkqN/4Npp1/nr6/2q2R1P/1Q6/n1r1n3/Rb4Rb/nRBRb1nK b - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 a4 b5 h4 d5 e4 b3 c4 d3 a5 d2+ Ke2 b4 Kf3 d4 c5 d3 a6 b2 h5 b3 a7 Rh6 c6 Na6 e5 Nf6 e6 Nh7 c7 Bd7 c8R Ng5+ Kg4 Ba3 Ne2 g1B Nf4 g2 Kg3 Nh3 e7 Bh2+ Kf3 g1B Kg2 Rb6 Qc2 d1Q Rb8 d2 Rb7 Bf2 Qc8 Be1 Qc4 Ng1 Qc2 Rc8 a8R Rc3 Qe4 Qc2 Ng6 Bb5 Rd7 d1N+ Rd2 Qb8 Qa4 Qf5 Re2 Qc5 Nh8 Bd7 Qb4 Ba4 Nd2 b1N Ne4 b2 Ng3 Nd2 Rb1 Nb3 Nf5 Na1 Rf2 Bd6 Rh2 Ne3+ Kh1 Qd8 Rhg2 Bh2 Nh4 Bb5 N4g6 Bc6 Rf5 Qb8 Bd2 Bb5 Rd1 b1N Bc1 Bb2 Ra7 Nc7 Ra2 Na3 Nf4 Na6 Nd5 Kd7 e8R Qbc8 Ree5 Qg8 Ne7+ Ke8 Rf1 Kf8 Ref5 Be8 Bd2 Nf3 Rb1 Ng1 Bc1 Bh4 Rd1 B4g3 Rf3 Be1 Rf5
2bRbn2/2B5/3BBQ2/1P1p1Np1/qb1rB3/4rB1R/1K1pq1bk/3q1bn1 b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 hxg4 f6 exf6 Nd2 f5 Nb3 axb3 Ra2 f4 Ra3 Nh6 Ra1 Ng8 Kd2 Ke7 h4 Kf6 c4 Ke5 e4 f5 b5 a5 h5 g5 c5 d5 h6 a4 c6 g3 c7 b2 Kc2 b1B+ Kb2 g2 h7 a3+ Kb3 a2 Qd3 f3 Be3 f2 Qc2 f4 Kb2 d3 Qd1 d2 Qb3 f3 Bd4+ Kf4 e5 Kg3 e6 Qe7 Qd3 Nh6 Qe2 Bg6 Bb6 Ra4 Qe5+ Rf4 Qf5 Be8 Be2 f1B Qf6 f2 Nf3 g1Q Nh4 Rd4 Bf3 Bg2 Rf1 Rg8 h8B Ng4 Ra1 Qf1 Rg1 Nd7 Nf5+ Kh2 Bc5 Rg7 Bd6+ Nge5 Rc1 Qd1 Rc4 Bf1 Rg3 Bg2 Ra4 f1B Ra8 Rh7 Rb8 Rh3 Be4 Bb7 Rd8 Nf3 c8B Ng1 Bf3 Qh7 e7 Qh5 Be4 Qhe2 Bf3 Rhh4 Bg7 Rhe4 Bc7 Re3 Bh6 Bg6 e8B Bb4 Bf8 Bh5 Be7 Nf8 Be6 Bc8 Bg6 Qa4 Bh7 Be8 Bc5 Qa7 B5d6 a1Q+ Kc2 Qad1+ Kb2 Bed7 Nh4 Qa6 Bhe4 Qaa4 Nf5 Be8 Rh3+
r6N/3P2Nb/1K1B1bq1/Rp1p1nNk/4q3/2rp1N2/3r1nNb/rQr4R b - - 0 1 illegal: No proof kernel
nnq2RN1/1Brb1B2/r3Qpp1/1r1r1qBP/2n3b1/Rp3BB1/4k1K1/2b5 b - - 0 1 legal: proof: d4 a5 g4 h5 f4 hxg4 b4 axb4 e4 c5 e5 cxd4 f5 f6 Nc3 Kf7 Nd5 fxe5 f6 Ke6 f7 e4 Nf6 exf6 Qd2 Kd6 Qd1 Ke7 Kf2 Kd6 a4 Ke5 c4 b5 h4 d5 h5 g6 c5 e3+ Kg2 Ke4 a5 d3 c6 g3 c7 d4 a6 b3 a7 e2 Ra5 e1Q Bd2 b2 Bf4 b1R Ra2 d2 Rc2 d3 Nh3 b4 Rc5 Rh7 Qb3 d1N Be3 d2 Bf4 Ne7 Bb5 Bh6 f8B Nb2 Ng1 d1B Bc6+ Nd5 Bg5 Nc4 Nh3 Bd7 c8B B1g4 B8b7 Qc8 Bd6 Kd4 Rg1 Qe6 Nf2 Nc7 Bd5 Qf5 Bf7 Rb2 Qa2 b3 Ra1 Rd2 Qa6 Kc3 Ra3 Rd5 Be5+ Kc2 Qe6 Rg7 Nh3 Kd1 Nf4 Rh7 Rc6 Rb5 Nd5 Ke2 Ne7 Rg7 Bh4 Bc1 Bg5 Rd5 Ng8 Rh7 Kh1 g2+ Kh2 g1R Bg3+ Re5 Rb6 Rd1 Kg2 Rd4 Be4 Rb5 Rb7 Nd5 Rc7 Ndb6 Rc6 Rdd5 Rd6 Be8 Rd8 Bc6 Rf8 Rg7 Be8 Rc7 Bf7 Bd7 Bd6 Na6 Be5 Rb8 Bg3 Na8 Be1 R8b6 Bg3 Re5 Bb7 Nb8 Be4 Rd6 Bb7 Ra6 Be4 Nab6 a8B Red5 Bb7 Na8 Bf3+
k5B1/pbnn2br/n1nN4/n1R1p1Rq/N1P2p2/N2N1q1n/r2N4/4K2Q b - - 0 1 legal: proof: d4 g5 f4 b5 h4 gxh4 e4 e5 a4 bxa4 d5 Nf6 d6 cxd6 Bd2 Ng8 Bc3 exf4 e5 Be7 e6 Bf8 Be5 dxe5 g4 f5 c4 h5 b4 d5 b5 a3 b6 f3 e7 Kd7 e8N Kc6 b7 d4 g5 d3 g6 f2+ Kd2 h3 g7 h4 Nc3 h2 Qg4 a2 Nd6 h3 Nd1 f4 Nf7 Ne7 g8N Qe8 Ne3 Nd7 b8N+ Kb7 Nfh6 Rh7 Nd1 Nc6 Qf5 Qh5 Rc1 a1N Qe4 Nc2 Na6 Nb4 Ne3 Rb8 Nhf5 Ka8 Ne2 Bg7 Ra1 Bb7 Bg2 f1N+ Ke1 Nd2 Ra5 Nb3 Nc5 Na6 Rg1 h1Q Nc2 h2 Nc3 Qf3 Rb5 Nba5 Nf6 Qh5 Bh3 Q1f3 Rg5 h1N Nd6 Nf2 Be6 Nh3 N3a4 Rg8 Na3 Rb8 Ng4 Rbh8 Nf2 d2+ Kf1 d1N Bg8 Nc3 Nd3 Nd5 Ke1 Ndc7 Rc5 Rh6 Qd5 R8h7 Nfe4 Re6 Nd2 Rg6 Rf5 Rg2 Rg5 Rf2 Nb3 Ra2 Nd2 Qfg4 Qg2 Qf3 Qh1
K1b4r/N2Q1rBr/1r2B1B1/N4Pp1/6p1/r4Br1/n1kR2pr/1qN5 b - - 0 1 legal: proof: d4 f5 a4 c5 b4 cxd4 b5 a6 Nc3 axb5 Nb1 bxa4 Qd2 a3 Qd3 Na6 Qd1 Nb8 g4 fxg4 e3 d5 Nd2 d3 Nb1 e6 Bg2 d2+ Kf1 d4 Bh3 d3 Kg2 Ra5 Kg3 Rh5 Bf1 Ra5 Kg2 Ra8 c4 h5 c5 Nc6 Ra2 Nd4 exd4 Bd6 Rc2 Bf8 c6 Bc5 dxc5 g3 Rc4 Kf7 Rd4 Ke8 Rg4 hxg4 h4 Ke7 f4 Kf6 f5 Ke5 c7 Kd4 h5 g5 h6 b5 h7 a2 c6 a1R Rh4 b4 Be2 b3 Na3 Kc3 Bf3 b2 Nc4 b1R Na5 e5 Rh2 e4 Ba3 e3 Bf8 e2 Bg7+ Qf6 Qa4 e1R Ne2+ Kb2 Nc1 d1R Qd4+ Kc2 Qd7 Ba6 c8B d2 c7 Re7 Bcb7 Ra3 c8B Qa1 Bbd5 Rh1 Bf7 Nf6 Bg6 Rf8 h8N d1R Nf7 Rb6 Ne5 Qb1 Nec6 Nd5 Na7 Rdd3 Qd6 Ref7 Be6 Rh8 Qd7 Nb4 N7c6 Rhd1 Na7 R1d2+ Kf1 Na2 Re2 g2+ Kg1 Rdb3 Kf2 Nc3 Ke3 Bc8 Rf2 Na2+ Ke4 Rh2 Ke5 Re2+ Kd5 Re3 Rf1 Rab8 Rd1 Re1 Rd3 Reh1 Rd1 Rh7 Kc5 R1h2 Kd5 Rbb3 Kc6 R3b6+ Kc7 Ba6 Rd5 Rbh8 Rd4 Bc8 Rd6 Re5 Rd2+ Kc3 Bfd5 R7h5 Bb7 R5h7 Rd3+ Kb2 Kb8 Kc2 Ka8 Re3 Bbd5 Reh3 Bf3 Rg3 Rd2+
B3B3/1r5n/N1q1bb1K/1Np3pp/1b2BPp1/BnNR1p2/2kq4/1Q6 b - - 0 1 legal: proof: g4 g5 b4 e5 h4 d5 a4 b5 f4 bxa4 c4 dxc4 h5 e4 b5 a3 Qb3 a5 Qf3 exf3 Bh3 Ra6 Bg2 Rg6 hxg6 f5 Bf1 fxg4 Rxa3 a4 Rc3 a3 Re3+ Kd7 Re8 Kxe8 Kf2 Kd7 Ke3 Kd6 d4 Kd5 g7 h5 b6 c5 b7 a2 Nc3+ Ke6 d5+ Kf5 d6 a1Q d7 Qa7 Nb5 c3 Ba3 Na6 b8N Nb4 Na6 Qdc7 d8Q c2 Qd1 Rh7 Qb1 Nf6 g8B Nc6 Bd5 Nd4 Ba8 Qc6 Kd3 c1B e4+ Ke6 e5 Kd5 e6 Bd2 e7 Be6 e8B Be7 Rh2 Nb3 Ne2 Bb4 Ke3 Kc4 Rg2 Nd5+ Ke4 Qad7 Ke5 Nf6 Nec3+ Qd3 Rd2 Bd8 Be2 Rb7 Bd1 Be7 Bc2 Nh7 Rd1 Qd2 Be4 Bd5 Kf5 Be6+ Kg6 Bf6 Kh6 Qc2 Rd8 Qd2 Nd6+ Kd4 Ndb5+ Ke3 Na2 Ke2 Rd6 Ke3 Rd3+ Ke2 Qb2 Kd1 Qa1+ Kc2 Nac3 Bf7 Qh1 Be6 Qb1#
7b/KB2nr2/n1pN1BnN/1qN1Q1BN/r4n1P/b4r2/5r2/nkR3r1 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 a4 h5 g4 hxg4 Bb2 b6 Bc1 Ba6 Ra2 Bb5 axb5 Rh7 Ra7 Rh8 Ra5 bxa5 Kf2 Kd7 d4 Ke6 e4 f5 h4 g5 b6 c3 b7 c6 d5+ Ke5 d6 a4 d7 c2 Nh3 a3 Bc4 f3 Ke3 f4+ Kd3 b3 Qg1 g3 Bd5 a2 Kc4 a1N Qa7 g4 Qe3 b2 Na3 b1N Nf2 g2 Nd1 g1R Qd2 g3 Qf2 g2 Bf7 Ne7 Kc5 Nc3 Bc4 Qa5+ Nb5 Ncd5 d8B Ng6+ Be7 Bg7 Bd2 c1B Bd8 Rf8 Qg3 f2 Ne3 f1R Nf5 Rf7 Nh6 Rf3 Be7 Qa4 Nd6 Bh8 Ba6 Qb3 Bg5 Nde7 Qe1 Qd3 Kb6 Kd4 e5 Ba3 e6 Rf2 Bb4 f3 Ba5 Qc4 Qe5+ Kd3 Bc3 Kc2 Bd4 Kb1 Bb2 Nf5 e7 Qe2 e8N Nfe7 Nf6 Qc4 Bb5 Ra4 Nh5 Na6 b8N Qd5 Bf1 Qb5+ Ka7 Rc2 Ka8 f2 Ka7 Rc3 Be2 f1R Nd7 R1f2 Nc5 Rcf3 Bd4 Rd1 Bf1 g1N Bh3 Rc1 Bc8 Ne2 Bb7 Nef4 Qe6 Nc2 Bdf6 Na1 Qe5 Rg1 Rh2 Rff1 Rc2 R1f2 Rc1+
2nn2n1/b1Nq4/p1B3bb/1r1Q2bn/P1K1B1b1/1B4p1/3N1k1q/N3R1N1 b - - 0 1 legal: proof: e4 g5 d4 f5 b4 fxe4 c4 a6 c5 Ra7 c6 bxc6 b5 c5 b6 cxd4 bxa7 d3 f4 h6 a4 Bb7 g4 Qc8 f5 Qd8 Bf4 Bc8 Ra2 Bb7 Rg2 gxf4 g5 Bc8 g6 Rh7 Rg3 Rh8 Rg5 hxg5 Kd2 e5 Kc3 Ke7 a8B Kd6 h4 Kc5 h5 d5 h6 d4+ Kb3 f3 g7 f2 f6 g4 f7 d2 h7 d3 Qc2+ Kd4 Be2 Ke3 Bd5 d1N Bb7 f1N Qb2 c5 Qa2 d2 Qa3 c4+ Ka2+ c3 Kb3 c2 Nc3 c1B Qa2 Kf2 Rh6 e3 Qb2 e4 Rf6+ Bf5 Bc6 Ng3 Bd7 Nc6 Rh6 Bg6 Rh4 Nh5 Bf1 g3 Qa2 e2 Rh1 e1Q Nd5 e3 Nb4 e2 Bg2 Ne3 Nc2 d1B Be4 Nd5 Kc4 Bg5 Na1 Qd2 Qb3 Bc5 f8N e1B Ne6 Nde7 Nc7 Ba7 Qd3 Nc8 Qd5 Bg4 Be8 Nge7 g8B Qd7 Bgf7 Rf8 h8N Nd8 Be6 Rf3 Nf7 Rb3 Ne5 Rb5 Nef3 Ng8 B6f7 Qb2 Be6 Bb4 Nd2 Bf8 B6f7 Bfh6 Be6 Qf7 Bc6 Qe8 Ngf3 Qd7 Re1 Qa3 Ng1 Qf3 B6f5 Qg2 Bc2 Qh1 Bfe4 Qh2 Bb3
1QN4B/2q1B1Rq/3pb2R/1b5K/P2B2r1/q2pkn2/2r1pRn1/b1q2R2 b - - 0 1 legal: proof: d4 f5 e4 g5 exf5 a5 b4 axb4 h4 gxh4 d5 c5 a3 b3 Nc3 b2 Ba6 Nxa6 d6 b1Q Nb5 Nb8 Nd4 cxd4 Rh2 Qdb6 Rh1 Qxd6 Nh3 Qdb6 Ng1 Qd8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 f4 b5 f6 e5 a4 h5+ Kg5 h3 g4 b4 f5 d6 c5 h2 c6 h4 c7 d3 Ba3 b3 Bb2 h3 Ba3 b2 Bb4 Qc1+ Bd2 b1Q Be3 Ne7 f7 Nd7 f6 Nd5 Nf3 Qbb2 Qb3 Nf4 Bd4 Qa3 Nh4 Bg7 f8B Rg8 Be7 Ng2+ Kh5 Ba6 c8R Bb5 f7 Qdc7 Rf1 h1Q f8B h2 g5 Bh8 Rd8 Rc8 g6 Rg7 Ra2 Rg8 Bb2 Ke3 g7 e4 Ng6 Ne5 Bf6 Nf3 Ne7 Qg1 Rd7 h1B Ba1 Qf2 Rc2 Qfe1 Rcf2 Qea5 Bae5 Qb7 Qb2 Rc2 Nc8 Qac7 B8e7 Rf8 Bh4 Rf4 g8R Rg4 Rg6 Qa7 Rh6 Qab7 Bh2 Bf6 Qb4 Ba1 Bg1 Qa7 Bef6 Qab7 Bh8 Qa7 Rd8 Qh7 Rd7 Qc7 Bd8 Kf4 Qb1 e3 Bhf6 e2 Bc3 Bc4 Ba5 Ne1 Qb8 Be6 Bc3 Ke4 Bg5 Nd4 Rf8 Bf3 Bf2 Ng2 Bf6 Kf4 B2h4 Ke4 Bh8 Ke3 Rg7 Bc6 Be7 Bb5 R8f2 Nf3 Bd4+
2Br4/q2R1NPk/4b1nn/2nq2bR/RR1n3q/2BQ4/nKnqr2q/B7 b - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 b6 e4 Nd2 axb6 Ndf3 exf3 Qd3 b5 Qf5 b4 Qg4 hxg4 Kd2 f5 e4 Kf7 c4 Kg7 Kc2 d5 a4 b5 h4 f2 a5 g3 c5 d3+ Kb2 b3 e5 g2 e6 d2 a6 d1Q h5 f3 c6 f4 e7 b4 e8R d4 c7 d3 g6 d2 a7 Nd7 Rh4 Be7 Ba6 f1N Rh1 f2 Rh3 f3 Ra4 Nc5 Ra5 Ne3 Ra3 f1N Ra1 f2 Rb1 Ng4 Bb5 Be6 c8Q Nfe3 Rh1 f1Q Rh3 N4h6 Qa6 Bg5 Be2 Nc2 Rh4 Nd4 Rg4 Qf2 Qb5 Ne7 Nf3 g1Q Nh4 Qgh2 Nf3 Qdc7 Qd3 Rd8 a8R Qfh4 Ra4 Qa7 Rg3 Qe1 Ne5 d1Q Nf7 Qed2+ Qc2 Qdh1 Rh3 Qd5 Ba6 Rg8 Bc8 Rf8 Nh8 Rf2 Nf7 Re2 Rf8 Nec6 Re8 Ne5 Re7 Kg8 Rd7 Kg7 Ka1 Kg8 Qc4 b2+ Ka2 b3+ Ka3 Qda5 Bd2 Kg7 Be1 Qd2 Qd3 Kg8 Rc1 Kg7 Rc4 Kg8 Rb4 Kg7 Qc2 b1N+ Kb2 Kg8 Rb8 Na3 Rbb4 Qdf4 Qd2 Nac2 Qd3 Kg7 Bc3 Qd2 Kb1 Nhg4 Ba1 b2 h6+ Kg8 h7+ Kg7 Qc4 Nh6 h8B+ Kg8 Ka2 b1N Kb2 Nc3 Qd3 Na2 Bg7 Qdf4 Bf6 Qd2 g7 Ng6 Be5 Kh7 Bf6 Qg4 Rh5 Qgh4 Be5 Nc6 Bc3 N6d4 Qe3 Qdg2 Qh3 Qd5 Qd3
r1rR1K2/2bB2rr/1r1B4/1qB1B2N/bQp3rr/Nqn3n1/P4k2/4N2q b - - 0 1 illegal: No possible last move
N1B1r1bK/bp5B/3r1Q2/2Pq4/Bb1rn2r/RR2rkn1/r4nRB/3q4 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Na3 bxa3 h6 gxh6 Kd2 h5 Ke1 h4 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd3 Kf5 c4 Kg4 e4+ f3 a5 f5 e5 h5 a6 h3 g3 a2 a7 f4 e6 h4 e7 h2 e8B h3 Bb5 Na6 Bd2 Nh6 Bd7+ Nf5 Be8 Nc5+ Kc2 d3+ Kc3 d4+ Kb4 Be6 Qb1 f2 Ne2 f3 Bf4 d2 Ba4 d1Q Qb2 d3 Kc3 d2 Nd4 Qd5 Rg1 h1R Rb1 a1B Nb5 h2 Rg2 Bg8 Nc7 Bd6 Bd3 f1R Be2 Re8 a8R Rh4 Ra7 Rh6 Na8 Re1 Bf1 f2 Ra5 Kf3 g4 Rh3 g5 R1e2 g6 Ng3 g7 R2e6 Bd3 f1R Bf5 Rf2 Be5 Rg6 Bc8 Rh4 Ra6 Re1 Ra7 h1N Bf4 Qf5 Kd4 Nce4 c5 Re3 Qc3 Bb8 Rb3 Re2 Ra5 Ba7 Qb2 Nhf2 Be5 Bd5 g8B Rd6 Bh7 Qd7 Qc3 Bb2 Ra6 Ba3 Bf4 Be6+ Ke5 Bb4 Qb2 Nc3+ Kf6 Nce4+ Kg6 Bg8+ Qf6 Qc6 Kg7 Qd5 Qg5 Qc1 Be5 d1R Kh8 Ra2 Ra5 Rd4 Qf6+ Nf5 Bh2 Qd1 Rb5 Rc4 Ra3 Rd4 Qg5 Nfg3 Qd8 Bc3 Rbb3 Bb4 Qf6+
b2Q1R2/3K3n/2BnN2q/1b1b2B1/RbPkq1p1/R3rnnR/2br2r1/5B2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 c4 f5 a4 d5 h4 g4 e4 b3 h5 b2 h6 b1B h7 d3 a5 f4 a6 d2 a7 d4 Qa4 d1B Rh4 d3 Rh5+ Kd4 e5 d2 e6 f3 e7 f2 e8R Nh6 Re7 Bd7+ Kb4 b5 Qa2 Be4 Rc5 Nf5 Nh3 g1R Qa5 g2 Bd3 f1N Qa2 N1g3 Qa5 Bc2 Qa6 d1B Qh6 Nd6 Rc7 Bd5 Ra5 B1f3 Re1 Qh4 Qd2 Qh6 Re2 B7c6 Ree7 Nd7 Ra1 Rd8 a8B Nf6 Re3 Bd7 Ka5 b4 Kb6 b3 Ng5 b2 Ra3 Bb5 Bc6 b1Q Rca7 Rg8 h8R Nh7 Kc7 Rg6 Qe1 Re6 Bf1 Re5 Reb3 Re3 R7a4 Bfe4 Qa5 Bf3 Bd7 Ba8 Bc6 Bd5 Bd2 Qe1 Nh3 Qe2 Nf4 Qf3 Bc1 Qe4 Bd2 Nb7 Bc1 Bb4 Rf8 Nd6 Bd2 Rh1 Rc3 g1N Rcb3 Nf3 Ne6+ Ke5 Bc1 Rh2 Rd3 Rd2 Qb6 Re8 Kd7 Ree2 Qd8 Rg2 Ng7 Re6 Rdb3 Kd4 Rc3 Rd3 Bg5 Rdd2 Rcb3 Re8 Ne6+ Ke5 Rb1 Bb3 Nc7 Qd4 Be2 Bc2 Rh1 Qe3 Rh2 Kd4 Bf1 Qf4 Rh5 Re3 Rh3 Qe4 Ne6+
3K2N1/q1Nn4/1nrNq2r/P1qB1b2/q1QkN3/1r6/Bn1r1b1p/3rB2R b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ra3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 d5+ Kf3 Ke5 e4 b5 c4 f5 c5 d3 a5 b4 c6 a2 c7 a1Q g5 d4 g6 d2 g7 d3 Be2 h3 Bb2+ Qd4 Bf1 b3 Ne2 h4 Bc1 h2 Bg2 b2 Qg1 d1N Nbc3 b1R Be3 d2 Ng3 h3 Qe1 Qc5 Nh5 Nb2 Bf2 d1R Bg1 Nd7 Qe3 Ra6 Nb5 Qa4 Qe1 Nb6 Na3 Rd2 Qc1 Nf6 g8B Nfd7 Nb5 Rh6 Ba2 Be7 Qc4 Bh4 Be3 Bf2 Nf6 Rbd1 Ng8 Rc6 Rf1 h1Q Nd6 h2 Re1 Qg1 Rf1 Bg3 Bf2 Bh4 Be1 Bf2 Bh1 Qg6 Bg2 Qe6 Rh1 Rb1 Qb5 Kd4 e5 Rbd1 Ne4 Rb1 Bf1 Rbd1 Bfc4 Rb1 Bd5 Rbd1 Kg2 f3+ Kh3 Rb1 Ng3 f4+ Kh4 Be3 Kg5 f2 Qe2 f1Q Ne4 Qf2 Qg4 f3+ Qf4 Bb7 c8N Rbd1 Ncd6 Bc8 Kh5 Qg1 Qg4 Bf2 Kg5 Bg3 Qh4 f2 Qf4 f1R Qh4 Qh3 e6 Rf3 e7 Qe6 e8N Rb3 Nc7 Qf2 Qg4 Qff7 Qe2 Bf2 Qc4+ Ke3 Rf1 Qh3 Ne7 Ne5 Na8 Rc7 Qc1 N6c4 Ne8 Rh6 N8d6 Kd4 Ng8 Rc6 Rh1 Qfa7 Nc7 Nb6 Qc2 Be6 Qc1 Ned7 Qc2 Rh8 Kg6 Bg4 Kf7 Rh6 Ke8 Be6 Kd8 Qe3 Nef6 Bf5 Qc1 Qe5 Nfe4 Qe6 Qc4+
2nb4/b2n1b2/1q1r1nNn/5Nk1/1NP1BbQn/R1N2rp1/3b4/RK2R1n1 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Bf1 b4 Ba3 bxa3 Kd2 Kf7 Kc1 Kf6 f4 b5 c4 e5 h4 g5 f5 d5 a5 a2 h5 d3 h6 d2+ Kc2 b4 a6 e3 a7 d4 h7 g3 Nc3 g4 Qe1 d1N Nb1 e2 Na3 e4 Qc3 e1B Rb1 a1B Nh3 b3+ Kc1 b2+ Kc2 g2 Ng1 g3 Nb5 e3 Rc1 b1N Qd2 e2 Qc3 Be6 Rh4 Bc5 Rf4 Nd2 Qe3 Nf3 Rg4 d3+ Kb1 d2 Ka2 Bf7 Kb1 Ne7 Rg7 Nh4 Rc3 Nf2 Nh3 d1N Ra3 g1N Bg2 Nd7 Nf4 Nc8 Be4 Ng4 Nc3 Ndf2 Nd3 Rf8 h8N Bd2 Nb4 e1B Ng6 Qb6 Ne7 Nh6 Qf4 Bb2 Qg4 Bbc1 Qh3 Nfg4 Ra1 Rb8 a8R Bd4 Rh7 Kg5 R8a3 Ngf6 Rh8 Rd8 Re8 Bf4 Bg2 Bcd2 Be4 Nh7 f6 Ra8 Rb3 Ra3 Nf5 Bef2 Re7 Bde5 Re8 Bb8 Re7 Ba7 Re6 Bc5 Re5 Be7 Re6 Bg6 f7 Nhf6 f8N Bf7 Ng6 Kh5 Nd1 Kg5 Re3 Rd3 Nc3 Rd6 Re1 Rf8 Re5 Bd8 Rea5 Rg8 R5a3 Re8 Bg2 Re3 Be4 Rf3 Qg4+
3bn1B1/n1b2B2/RBN1b2r/qn1N4/3n1r2/2bKQ1p1/2PbrN1k/3r1B2 b - - 0 1 illegal: No proof kernel
r3rR2/n1qN1bK1/3q1RNp/n1n1rR1R/3n4/rr1Nr2P/8/B2Qbk2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Bd3 f5 Be2 f4 Bf3 exf3 Kf2 Kd7 d4 Kc6 a4 Kd5 g4 Kc4 g5 e5 g6 b5 a5 f5 g7 c5 h3 h6 a6 b4 d5 e4 a7 c2 d6 b3 d7 b2 Qd6 e3+ Ke1 e2 Kf2 e1R Qd2 Re3 Ra3 Nc6 Ne2 Na5 Ng1 Ne7 g8N Nec6 Qe1 Qc7 d8R Be6 Rb3 Bf7 Nc3 b1R Ra3 Rb3 Rb8 Kd3 Nge2 c4 Nf6 Bb4 Na2 c3 Nd4 Rhe8 Bb2 c1N Nh5 c2 Rb5 Ne2 Rb8 c1N Ne6 Ned4 Ba1 Bd2 Kf1 f2 Kg2 f1R Nf6 Rff3 Nd7 Rg3+ Kh2 f3 Rf1 f4 Nef8 f2 Qd1 f3 Ng6 R8e5 Ra4 Ra3 Rb7 Ncb3 Rb5 Nc5 Rab4 Rae8 a8R Na7 Rb6 Rb3 Rf6 Qd6 Rb5 Qc7 Qc2+ Ke2 Nb4 Ra3 Qc1 Be1 Nd3 Rb3 Nh8 Rgg8 Ng6 Rgf8 Kg3 Qd6 Rh1 f1Q+ Kf4 f2 Rh2 Qh1 Qd1+ Kf1 Rg2 Rh8 Rg5 Qhc6 Rh5 Qcc7 Rab8 Kg1 Kg4 f1R Rhf5 Rff3 Kh5 Kf1 Rc8 R8e6 Rg8 Re8 Rf8 Bc4 Nh4 Be6 Kg6 Bf7+ Kg7 Ra8 Rc8 Rhe8 Ng6 R8e7 Rf8 Ra3 Rb2 Ree8 Rg2 Rb3 Rgg5 Ra3 Ndf4 Reb3 Rh5 Rfe3 Nd3+
1QR1K1bN/1B2R1bP/N2bnR1b/2b5/1b3r2/1p1r2q1/4k2q/nq1N2Rq b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Bf1 b4 Ba3 bxa3 Ke2 Kf7 c4 Kf6 h4 Kf5 f4 g5 h5 d5 c5 e5 a5 b5 h6 a2 c6 b4 h7 d3+ Ke3 d2 a6 g3 c7 g2 a7 b3 Nf3 Kg4 f5 g1Q+ Ke2 d4 f6 e3 Kd3 e2 Kc4 e1B Kb5 d3 f7 e4 Rh3 e3 Qe2 d1Q Na3 d2 Rh5 Be6 c8R Bh6 f8R Ne7 Rc2 Nf5 Rc3 Qc7 Rc5 Qgg3 Rd5 Nd4+ Kb4 Qb1 Rfd8 d1Q+ Ka4 Na6 R8d6 Bb4 Rd7 Rad8 a8N Rhf8 Rh3 Bg8 Rf5 Bd6 Qh2 e2 Bg2 e1B Nh4 Nc2 Kb5 Beb4 Rf6 Nc5 Ng6 Ne6 Bb7 Qh1 Nc4 Qb8 Nc7 Rf7 Rf3 Rf4 Na6 Qc7 Rf7 Rd7 Re3 Rd8 Re4 Kf3 Rf6 g4 Ne3 Qb8 Kc6 Rd7 Qg1 Ke2 Nh8 Qgh2 Rh5 g3 Rc5 g2 Qc1 g1B Nd1+ Be3 Qb2 Rd8 Qe5 Qc7+ Kd5 Qg7 Rc8 Qgg3 Kc6 Kf1 Qa5 Bec5 Qc7 Rd7 Ne3+ Ke2 Qb8 Qbg1 Rf1 a1B Rd1 Bac3 Rf1 Na1 Nd1+ Q1e3 Rg1 Rd8 Rg6 Bcg7 Rf6 Qe1 Nb2 Qb1 Nd1 Rf8 Kd7 Rf3 Rfg6 R8f4 Rf6 Rg3 Ke8 Rh3 Rc4 Qef2 Rc7 Rd3 Re7 Qfg3 Rc3 Ba7 Rcc7 Bac5 Rc8
2k1r3/RNp5/b1bB1n1r/2BqNnqr/1KB2bpb/P2B1bQ1/q7/4N3 b - - 0 1 legal: proof: f4 h5 b4 a5 g4 hxg4 c4 axb4 a3 d5 f5 dxc4 Bg2 g3 Bf1 g2 Ra2 e6 Rb2 exf5 Rb3 f4 Rg3 fxg3 e4 Kd7 h4 b5 d4 f5 Kd2 g5 h5 b3 Kc3 b2 d5 b4+ Kc2 f4 h6 b3+ Kc3 f3 d6 f2 h7 Nh6 e5 Be7 Bd3 f1B Bg6 Be2 Qd5 Ba6 Nf3 g1R Bf4 g2 Rh3 Rh1 Bf7 g1Q Qd3 Nf5 Nbd2 b1Q Ne1 b2 Ndf3 Qa2 Rh2 b1B e6+ Kc8 d7+ Kb7 Qe3 Be4 Qf2 Qg4 Qg3 Bc6 Rg2 Qg8 Bd6 Rh5 Ne5 Bef3 Rh2 Bd8 e7 Qe4 Bd5 g4 Rc2 Qf4 Be4 Qd5 Bd3 Rf8 Rd2 Rf6 Rf2 Rfh6 Rb2+ Bcb5 e8B Bh4 Rb3 Qg5 d8N+ Kc8 h8B Nd7 Nef7 Kb8 Bd4 Nf6 Bb6 Bd7 Ne5 Ba4 Bbc5+ B4b5 Kb4 c3 Ka5 c2 Bd7 c1B Be6 Bf4 Bf7 Qe4 Bfc4 Qd5 Rb2 Kc8 Rb3 Bc6 Rb7 Rb8 Ra7 Rb2 Ng6 Rf2 Kb4 Re2 Nb7 Re8 Ne5
3Rq1rn/P7/1brRbrN1/3Npqbk/3r1Bn1/2r1R3/1Kpq1N1Q/1R6 b - - 0 1 legal: proof: c4 a5 f4 h5 e4 g5 b4 gxf4 g4 axb4 e5 d5 e6 dxc4 g5 fxe6 Bg2 e5 Bf3 e4 Bg4 hxg4 d4 Kf7 Kd2 Kg6 Kc2 b5 a4 c5 h4 e5 a5 c3 a6 c4 a7 f3 d5 e3 d6 f2 d7 f1R Ne2 g3 Qd6+ Nf6 Qd2 g2 Rh2 g1B Ra4 Rh6 Ra2 Nc6 Ra5 Kh5 g6 Ng4 g7 Be7 g8N Rff6 Ra3 b3+ Kd1 b2 Kc2 b4 Rf2 b3+ Kd1 c2+ Ke1 c3 Rf1 Qe8 d8R Be6 Rd6 Rhg6 Nh6 Nd8 Nf5 Nf7 Nfg3+ Kh6 h5 Nh8 Nf4 e2 Ne4 Bb6 Rg1 Rc8 Nf2 Rc6 Rf1 Rg8 Rg1 Kg5 h6 Kh4 Ng6+ Kh5 h7 Bed8 Qd3 Be7 Bf4 c1R+ Qd1 Rc2 Qd5 Rd2 Qf3 Rd4 Qg2 c2 Nc3 b1Q+ Bc1 b2 Nd5 Qa1 Re3 b1R Rf1 Rb3 Qh2+ Kg5 Rh1 Rbc3 Rg1 Qa6 Bd2 Qd3 Bc1 Nf7 h8R Qf5 Rf1 Rg7 Rf8 Rg8 Bd2 Nh8 Bc1 Qd7 Rd8 Qe8 Rh1 Rb4 Kd2 Rf4 Ba3 Rd4+ Kc1 e1Q+ Kb2 Qd2 Rb1 Rf7 Qg3 Kh5 Qh2+ Bh4 Ka1 Rf6 Bc1 Rg7 Kb2 Rg8 Rd3 Qe1 Bf4 Qd2 Qg2 Bg5 Re3 Bc5 Qg3 Bb6 Qh2+
b7/p2B2Q1/1bk1b1BR/rqp3B1/Pqr4N/3r3r/1N1B4/KnqNn1r1 b - - 0 1 legal: proof: f4 b5 a4 e5 g4 exf4 b4 h5 c4 bxc4 d3 cxd3 Nc3 hxg4 Ra2 g3 Rc2 Rh6 Nb1 Rh8 Rc6 g2 Rg6 Nf6 Rg4 Ng8 Rg3 fxg3 Kd2 g5 Kc3 d5 Kb2 Kd7 e4 f5 h4 d2 h5 d4 e5 g4 b5 d3 h6 f4 h7 f3 b6 f2 e6+ Kc6 e7 Qd6 e8B+ Nd7 b7 Nf6 b8B Nd5 Nf3 g1Q Qe2 d1R Qe4 d2 Qe7 g2 Rh5 g3 Ng5 Nc3 Qe2 Qb4+ Ka1 Bc5 Rh3 Bb6 Bh5 Nc5 Rh2 Nd3 Nf3 Be6 Rh1 Ne1 Qe5 Rc8 Ba6 f1Q h8N Qfb5 Rh3 Qh1 Qf6 g1R Bg6 g2 Rh6 Rf1 Nh4 g1R Qg5 Rf5 Nf7 Rh8 Nd6 Re5 Na3 Nb1 Nc2 Rc5 Qg3 Rc4 Bc8 Rd8 Nb7 Rd3 Ne3 Rd5 Nc5 Rd3 Ba3 Rdc1 Qe5 d1B Qg7 Bf3 Nd1 R1c2 Bc1 Rcg2 Qd4 Rg5 Qg7 Kd6 Nf2 Q5a5 Bf5 Ng2 Ba6 Rd5 Rf6 Qh3 Ng6 Qh6 Ncd3 Ne1 Nb2 Rd3 Nfd1 Kd5 Bf4 c6 Bbe5 Rh8 Bc8 Rh5 Bc3 Rh3 Bfe5 Qc1 Bf4 R8h5 Bcd2 Qa6 Bh6 Kd6 Be4 Ra5 Nh4 c5 Bhg5 Qab5 Rh6 Bh1 Bf5 Ba8 Bg6 Kc6 Bd7+
1QK3nq/1P4n1/Bqk1B2n/5bqR/q5p1/N1bNB1pr/Nb2r3/5rB1 b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 hxg4 f6 g3 Bb2 g2 Ra3 exf6 Bc1 f5 Rd3 f4 Rg3 fxg3 Kd2 d5 Kd3 Kd7 h4 a5 c4 f5 e4 g5 e5 g4 e6+ Kc6 h5 a3 c5 a2 h6 a1Q h7 a4 e7 f4 e8B+ Nd7 Bg6 f3 Ba3 f2 Bc1 a3 Bf5 a2 Nf3 g1Q Ne1 Ndf6 Rh5 Nh6 Nc3 Bg7 Be6 Nfg8 Qb3 Qg5 Be3 Be5 Be2 f1R Qb1 Ra7 Qb3 Re7 b5+ Kc7 b6+ Kc6 b7 Qb2 Qb4 a1B Na2 Qh1 Qa5 Qb6 Qa7 Bc3 Qb8 Bb2 Kd2 Bg7 Ba6 Bd7 Nd3 Qh3 Nf4 d3 Bg1 Bgc3+ Ke3 d4+ Ke4 d2 Nd3 d1N Be3 Nf5 Bg1 Nde3 Ke5 Nd5 Be3 Ngh6 Bg1 Nf6 Be3 Rhe8 h8B Nfg8 Bg1 Rh7 Bf6 Qg6 Bg5 Ng7 B5e3 Rd8 Bec4 Bf5 Be6 Re8 Qa8 Kc7 c6 Qh4 Kd5 Qhf6 Qa7 Qgg5 Qa8 Qd8+ Ke5 Qc8 Qb8+ Kd8 Kd6 Qb5 Bd5 Qb6 Ne1 d3 Rh1 d2 Bc5 d1Q Nd3 Re2 Bce3 Ne7 Be6 Qa4 Rh3 Qbb3 c7+ Ke8 Kc5 Nf7 Rh6 Qd8 c8N Rh8 Rh1 Rh4 Nb6 Nh6 Nc4 Rh5 Bd5 Kd7 Na3 Qh8 Bg8 Rhh2 Bgc4 Neg8 Kd5 Rhg2 Rh5 Rh2 Kc5 Rh3 Be6+ Ke7 Qf4 Ke8 Kd6 Qbb5 Kc7 Qb6+ Kc8 Ke7 Ne5 Kd6 Nd3+ Kc6 Qb8
1B1nbq2/pN2Bqn1/N2r4/2Np2K1/Pq2r1N1/6nk/3BQ1q1/3Rb1bn b - - 0 1 legal: proof: b4 g5 f4 e5 a4 exf4 d4 g4 c4 b6 c5 bxc5 Ra2 cxd4 Ra3 d3 Rc3 Qf6 Rc5 Qc6 Rh5 Qf6 Rh3 Qd8 Rf3 gxf3 g4 h5 g5 Bd6 Bh3 Bf8 Bg4 hxg4 Kd2 Ke7 h4 Ke6 e4 c5 g6 f5 e5 d5 g7 g3 b5 c4 h5 f2 h6 f1Q h7 g2 b6 f3 Ke3 f4+ Kd2 Kf5 e6 Kg4 b7 Bb4+ Nc3 Nf6 g8N Ne8 e7 Ng7 e8N Bd7 Ba3 Nc6 Nd6 Be8 Qa1 f2 b8B f3 Ke3 d2 Qa2 d1N+ Kd2 Qe1+ Kc2 f1Q Nce4 f2 Ne2 g1B Nc8 c3 Kd3 c2 Nc5 c1Q Na6 Qf4 Nd6 Qf7 Nb7 Qg2 Nf4 f1N Ne6 Ng3 Nec5 Qd6 Bc1 Qdf8 Bd2 Nd8 Qb2 Qee7 Qe5 Nf2+ Ke3 Qd6 Qb2 Bc3 Qb5 Qb6 Qf1 Qb4 Qe2+ Kf5 Nf6 Rg8 Bc1 Be1 h8B Kg5 Ng4 Kf5 Bf4 Rc8 Bb8 Rc6 Bd2 Rd6 Rh6 Kg5 Rg6+ Kh4 Re6 N7h5 Bf6+ Kh3 Be7 Ng7 Re4 Rh8 Rd4 Rhh6 Rd3 Rh4 Rd4 N7f5+ Kf4 Nfh1 Kg5 Ng7 Nh6 Re4 Ng4 Bh2 Bc1 Bg1 Rd1 Bef2 Be3 Be1 Bd2
4KNb1/1Pr3RQ/1p1p3k/3q4/RN3qpn/5Nrb/N1Bq2rn/b3nR2 b - - 0 1 legal: proof: f4 b5 g4 e5 d4 exf4 g5 c5 g6 cxd4 Bd2 hxg6 Be3 g5 Bc1 g4 b4 Qa5 a4 bxa4 Ba3 Qd8 b5 Qb6 Bc5 Qb7 b6 Qc7 b7 Qd8 Bb6 axb6 Kd2 f5 Kd3 Kf7 Kc4 Kg6 Kb5 g3 h4 f3 e4 f4 c4 a3 c5 a2 h5+ Kh6 c6 g5 e5 g4 c7 g2 e6 d3 e7 d2 e8N f2 Na3 f3 Rh2 Rh7 Ne2 g1R Rb1 a1Q Rb4 Qd4 Nf6 Bg7 Nc4 Rg2 Qc2 d1Q Rh1 Ra3 Nc1 Qf4 Ne5 Qdd2 Na2 Ne7 Ra4 Ng6 Bd3 f1N Nd5 f2 Nf3 Nc6 Ndb4 Nh2 Rf1 Ba1 Qb1 d6 Bc2 Be6 c8R Nh4 Rc7 Ne5 Rg7 Nd3 Kc6 Qdg5 Kc7 Qc5+ Kd8 Qd5 Ke8 Bg8 Re7 Qb3 Ng1 N4f3 Bd1 Kg5 h6 Nde1 Rd7 Rf7 h7 Nh4 h8N Kh6 Ng6 Qbd5 Nf8 Rag3 Nf3 Rh7 Rd8 Rc7 Rd7 Qdc4 Rg7 Qcd5 Rg1 f1B Qe4 Rf2 Bc2 Bh3 Rf1 Rfg2 Qh7+
Q7/2P3nR/bpNk1BrB/pBRr1B2/n7/2bnpq1b/Kb1r2R1/5b2 b - - 0 1 legal: proof: b4 f5 d4 g5 e4 fxe4 h4 gxh4 a4 c5 a5 cxd4 b5 Bh6 b6 Bf8 Nd2 Kf7 Nc4 axb6 a6 Ke8 Na5 bxa5 Kd2 e5 c4 Ke7 Kc2 h5 Kb2 d5 f4 b6 g4 e3 c5 e2 c6 e1B a7 e4 g5 e3 f5 h3 g6 h4 f6+ Kd6 g7 h2 c7 h3 f7 d3 Qg4 d4 Qf5 d2 Bc4 d1B Kb1 d3 Bb2 d2 Bf6 Be2 Qg5 d1R+ Ka2 Rh6 Ka3 Rg6 Ba6 Ne7 g8R Rd5 Qg4 Bc3 Bd3 Nd7 Rb1 Bg7 f8B Ba6 Qe4 Nc5 Bg5 Na4 Qf3 Bf1 Rb5 Qe8 Bh4 Qc6 Rc5 Rd8 a8B Bb2+ Ka2 Bgc3 Bg7 Nf5 Bh6 Ng7 Bf5 Rd2 Qg2 Qf3 Ne2 Rd7 Bf6 Rd5 Rg1 h1B Rh8 h2 Bc6 Rd8 Bb5 Rd7 Qf2 Bhg2 Rh7 h1N Nd4 Bh3 Qg2 Nf2 Nc6 Rd2 Qh1 Nd3 Rg3 Re7 Rg2 Re5 Qg1 Rd5 Qf2 Qe4 Qf3 Qg4 Qe4 Qf4 Qe8 Qf3 Qa8
1QK3b1/3r1pB1/1rn3bp/3RrP2/3B1R2/q1b1n1b1/1p1B2BN/1b2qRk1 b - - 0 1 legal: proof: c4 a5 d4 e5 b4 axb4 c5 h5 c6 dxc6 d5 c5 Qd3 c4 Qd4 exd4 h4 Nd7 g4 hxg4 h5 Ra5 h6 Ra4 h7 Ra8 Nd2 Nb8 Ne4 Na6 Ng3 Nb8 Nf5 Ra3 Nh6 gxh6 Rh2 Ra6 Rh1 Ra8 Kd2 Ke7 e4 Kf6 a4 Kg5 d6 Kf4 d7 b5 f3 Kg3 e5 Kf2 a5 c5 f4 d3 e6 c3+ Kd1 c4 e7 d2 Kc2 d1B+ Kb1 c2+ Ka2 g3 e8Q c3 Kb3 g2 a6 Ra7 Ba3 c1R+ Ka2 c2 Kb3 Qe7 d8B Qe1 Qe5 Nc6 Qg5 Nf6 Qd5 Rd7 a7 Ng4 a8R Rb1+ Bb2 c1Q+ Ka2 Bg7 Qb3 Bc3 Bg5 Ne3 Rh4 Re8 h8B Bc2 Bd4 Re5 Ra5 Bh7 Nf3 g1B Bg2 Bh2 Rg4 Bg3 Nh2 Bg8 f5 Kg1 Rf4 Bb7 Qc4 b3+ Ka3 b4+ Ka4 Ba8 Rd5 Bb7 Kb5 Ba8 Ba3 b2 Kb6 b3 Qb4 Bb7 Qd6 Ba6 Bf6 Be2 Qb8 Bh5 Bg7 Bg6 Be7 Qcd2 Bh4 Qd3 Bg5 Qa6+ Kc5 Qa3+ Kb6 Rd6 Kc7 Rd1 Rf3 b1B Kc8 b2 Rf2 Nc2 Bc1 Ne3 Rf4 Rd3 Bd2 Rd7 Bb6 Rd4 Ba7 Rb4 Bd4 Rb6 Ra5 Bd3 Bc5 Qd1 Bd4 Qf1 Re1 Be4 Rd5 Bb1 Re2 Qd1 Ref2 Qe1 Rf1+
1BnBqrnN/p3b1pn/R1R1qn2/1K6/n1P1b2R/Q1B1r3/q4kp1/2B5 b - - 0 1 legal: proof: e4 b5 a4 bxa4 g4 f5 g5 fxe4 g6 c6 Qf3 hxg6 Qg4 g5 Qd1 g4 b4 d5 b5 d4 b6 Nf6 Bb5 cxb5 c4 Ng8 Nc3 dxc3 Ke2 Kd7 d4 Kc6 h4 e5 f4 b4 f5 a3 d5+ Kc5 d6 g3 f6 a2 b7 c2 f7 e3 Kd3 e2 h5 e1Q d7 g2 h6 b3 h7 b2 Ne2 b1N Nc3 Qe8 d8B Nd2 Bg5 Be7 f8B Nc6 b8B Ne4 Rb1 a1Q Qf3 Qa2 Qf4 Bb7 Bc7 Nef6 Bb2 c1N+ Kc2 e4 Qf3 Kd4 Rh6 e3 Ra1 e2 Bb8 Nd3 Bc1 Nc5 Qh3 Na4 Nd5+ Ke4 Rg6 Nc3 Nf4 Na4 Qh4 Kf3 Qh3+ Kf2 Qa3 Nd4+ Kd3 Nf5 Bc3 Nd6 Kd4 Be4 Rh6 Nc8 Ng6 Qh1 Rh4 e1N Rh6 Qh3 Rh4 Bb4 Be7 Qe6 Bd8 Be7 Rh6 Nd3 Rh4 Nf4 Rh6 Nh3 Rh4 Ng5 Rh6 Nab6 Rh4 Nd6 Kc5 Na4+ Kb4 Nh6 Ka5 Rf8 h8R Nhg8 R8h6 Ngh7 Nh8 Nc8 R6h5 Ke2 Rc5 Kf1 Rc6 Kf2 Bd6 Rb8 Ka6 Rb2 Bb8 Re2 Kb5 Re3 Qb4 Qd2 Ra3 Qa2 Qb3 Nc5 Ra6 Na4 Qa3
5K2/3B4/2q1rpq1/nn2qP1r/1Q4NB/bp1rp2B/2N2Bk1/nN1br2R b - - 0 1 illegal: No possible last move
3KQ2r/6Np/N2R2N1/1npn4/B1PN4/1R1bqp2/Rqb2krn/r1b4b b - - 0 1 legal: proof: b4 g5 f4 a5 h4 axb4 e4 gxh4 a4 d6 e5 dxe5 Qg4 exf4 Ba3 bxa3 Qd1 f3 Kf2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 c4 e5+ Kh5 f5 g4 c5 g5 b5 a5 a2 g6 h3 a6 f2 a7 e4 g7 e3 Be2 f1N Qa4 b4 Nc3 f4 Bd1 h2 Ne4 f3 Nd6 e2 Ne8 Nf6+ Kg5 e1Q g8N b3 Ng7 b2 Ne7 b1B Qe8 Nc6 Ba4 Bd3 Ng6 Bcf5 Rb1 a1R Rb3 Rc8 a8N Qb6 Nc7 Na7 Na6 Bc2 d3 Be4 Ne2+ Ke3 d4+ Kf2 d5 Bed3 d6 Nd5 d7 Nb5 Rg1 h1B d8R Nh2 Nd4 Qb7 Rd6 Qe3+ Nf4 Rb8 Rgb1 Rd8 R1b2 Qb8 Ra2 Be7+ Kh5 Bg5 Ng6 Bf4 Qc6 Rdg8 Qe8 Qe1 Kh4 Bc1 Kh5 Qe3 Kh4 Nf4 Kg5 Qb7 Kf6 Qb8 Ne5 Nd5+ Ke6 Qb6 Kd7 Qb8 Ng6 Qb6 Nh5 Qb7+ Kd8 Rg7 Ne7 Rg2 Ng6 Qg7 Nf5 Qge5 Nhg7 Qb2 Nd4
KR1qn2q/3Nrp2/1p3bn1/4p2q/p2B4/3PBpN1/B1r2N1B/1Q1b1kr1 b - - 0 1 legal: proof: b4 d5 e4 dxe4 a4 h5 g4 hxg4 f3 exf3 b5 Qd5 a5 Qd8 Ra3 b6 Rb3 bxa5 b6 a4 b7 Qd7 Rb4 Qd8 Rb6 cxb6 Kf2 Kd7 Ke3 Kc6 Ke4 Kc5 c4 g5 h4 a5 h5 a3 d3 a4 h6 g3 h7 g4 Bg2 a2 Rh4 a1Q Nh3 Na6 b8B Bg7 Na3 Nc7 Nf2 Bf6 Bh3 g2 Be3+ Kb4 c5 Kc3 c6 g1R Qf1 g3 Nc4 g2 Be6 Ne8 c7 Ra7 Ne5 Rb7 Bb3 Be6 Ba2 Bb3 c8N Bd1 Nd6 e6 Nf5 Ne7 Rg4 Ng6 Ng3 Re7 Nd7 Rf8 h8B Rg8 Bd4+ Kd2 Rg5 Rg7 Ra5 Rh7 Ra8 Rh2 Bd6 Qb2 Rb8 Qb5 Bg7 Qg5 B6c5 e5 Kd5 Qh5 Kc6 Bb3 Qb1 Bd1 Kb7 Ke1 Ka8 Qh8 Nh5 Kf1 Bh6 Rh3 Ba1 Rgh1 Ne4 g1Q Bf4 Qg5 Bce3 Rg1 Bad4 Rh2 Bg3 Rc2 Bh2 Qg4 Nf2 Qh3 Nf4 Qg4 Ne2 Qgh5 Ng3+
2qN1nN1/p5QR/3R2Qb/1P1rr3/B5b1/n1R1r1p1/1r5b/1RK1k2b b - - 0 1 legal: proof: f4 b5 b4 d5 a4 bxa4 e4 h5 exd5 c5 g4 hxg4 b5 e5 Ba3 exf4 Bxc5 a3 Be3 fxe3 c4 Bd7 c5 Bf5 c6 Be6 c7 Bd7 c8N Bxc8 d4 Ke7 h4 Kd6 h5 g5 h6 f5 h7 a2 Rh4 g3 Qd2 f4 Kd1 f3 Rh5 g2 Qe2 g4 Qb2 e2+ Kc2 e1R Na3 g3 Rh4 f2 Rb1 a1R Nf3 g1B Be2 f1B Nd2 Nc6 Bd1 Nf6 Kc1 Nd7 Nc2 Bh6 Nb4 Ra3 Qc2 Nce5 Nc6 Nf8 Qg6+ Be6 Rh2 Qc8 Rh3 Re4 Ba4 Nc4 Nd8 Re5 Rh1 Rae3 Ne4+ Kd7 d6 Bh2 d5 Bg2 Nf7 Bg4 Nd8 Rg8 h8Q Na3+ Nc3 Rg7 Qhh7 Rge7 Qhg7 Qa6 Ne4 Qc8+ Kb2 Rf7 Rhc1 Bh1 Rc3 Rb8 Kc1 Rb7 Qh8 Rc7 Qhf6 Rc5 Qfg7 Ke8 d7+ Ke7 Nf6 Kd6 Ng8+ Rf6 Qe4 Rf2 Qd3 Rb2 Qdg6+ Kc7 d6+ Kb6 Ne6 Ka5 d8R Kb4 Rd7 Red5 Rc7 Rde5 d7 Rcd5 d8R Bgf3 R3c6 Bh5 Rdd6 Bg4 Nc5 Kc3 Rcd7 Be4 Nb7+ Kd3 Rc4 Ke2 Nd8 Ke1 Rc3 Bef3 Q7f6 Bg2 Rh7 Bh1 Qfg7
1N1qb3/qQ4qN/1r6/B2Qr1rp/4P3/1B4Rr/p1k1K1bn/Q1q2Q2 b - - 0 1 legal: proof: b4 c5 a4 b5 d4 cxd4 f4 bxa4 h4 e5 b5 exf4 b6 g5 Ra2 Ba3 Rxa3 gxh4 Rc3 Nc6 Rg3 Na5 Rf3 Nb3 Rxb3 axb3 c4 Ke7 e4 Ke6 g4 Ke5 g5 d5 b7 f5 c5 a5 c6 h5 g6 f3 g7 d3 b8Q+ Kd4 c7 a4 Bh3 d2+ Kf2 Kd3 Qf1+ Kc2 Qg2 d1Q Ba3 d4 Bd6 b2 Ba3 f4 Qf1 d3 Qb4 d2 Bg4 h3 Be6 h2 Qh3 Nh6 g8Q Bd7 Qgg2 Ra5 Bf5 Be8 Qb6 Re5 Qd6 Rg8 Nc3 b1R c8Q Rb6 Qf1 Qa1 Bb4 d1Q Nge2 a3 Rg1 h1R Qb7 a2 Qdd5 Qdc1 Be6 Rgg5 Ba5 Qab2 Qf5 Rh3 Qf6 Qe3+ Ke1 Ng4 Rg3 Nh2 Bf7 Qc5 Qg7 Qcc7 Be6 Qcb8 Bf7 Qa7 Nd4+ Kc1 Nc6 Kc2 Nb8 f2+ Ke2 Qa1 Qc5 Qb2 Bc4 f3+ Ke3 Qa1 Nd5 Qb2 Nf6 Qa1 Qh1 f1Q Qcd5 f2 Nh7 Qfc1+ Ke2 f1B+ Kf2 Bg2 Qf1 Qa3 Ke2 Qae7 Qgf6 Qc3 Qa1 Qg7 Qf3 Qb2 Qff1 Qc1 Bb3+
N6K/1qbPR3/1BN2Q2/3r4/r5pb/N1N1rb2/p1bn2kq/RQ3b1n b - - 0 1 legal: proof: f4 a5 b4 d5 c4 dxc4 g4 h5 a4 hxg4 e3 e5 b5 exf4 Bg2 c3 Bc6+ bxc6 Kf2 cxb5 axb5 a4 Ke2 a3 Ke1 a2 Ke2 Ke7 d4 Ke6 Kd3 Kd5 h4 f5 b6 g5 h5 c5 b7 c4+ Kc2 Ke4 h6 g3 h7 g4 d5 f3 d6 f4 d7 g2 Qe2 f2 Qd1 f1B Ne2 Kf3 e4 g1Q e5 Qc7 e6 Qh2 e7 Nc6 e8N Be7 b8Q Ra4 Bd2 Bb7 Qa7 Nb4+ Kc1 c2 Kb2 c1R Qb6 c3+ Kb3 c2 Qc5 Bh4 Kc4 Nf6 Kd4 Kg2 Na3 f3 Bf4 f2 Qd6 Ne4 Ke5 Nd2 Nc3 Bd3 Re1 f1B Re3 Qc8 Nc7 Bf3 Na8 Qb7 Qf6 Rc8 h8N Rc5+ Ke6 Rd5 Kf7 Bde4 Kg7 Nd3 Bd6 Nf2 Bc5 Nh1 Ng6 Rb1 Kh7 c1B Bb6 Bc2 Re7 Rb3 Kh8 Bb2 Qb1 Bc1 Ne2 Re3 Ne5 Bb2 Nc6 Be5 Nc3 Beg3 Bc5 Bc7 Bb6
R1q1Bb2/1Nb3rr/2nR1p2/2Q4P/Kb2p2B/p2rn2k/r4qQ1/R5R1 b - - 0 1 legal: proof: e4 h5 d4 b5 a4 bxa4 g4 hxg4 d5 c6 Ke2 cxd5 Kd2 dxe4 Ke1 e3 f4 e5 b4 Ba6 f5 Bc4 Nd2 Be6 Nb3 axb3 fxe6 Rh6 Qd4 Rh3 Qd1 Rh8 h4 Ke7 c4 Kf6 b5 Kf5 e7 a5 e8Q d5 h5 g5 b6 a4 c5 b2 c6 b1Q b7 e4 c7 g3 c8R g4 Bd2 g2 Qc6 g3 Rh3 d4 Bd3 f6 Bc1 e2 Kd2 Kg4 Rh2 Qc2+ Ke1 Rh7 Nf3 g1B Nd2 g2 Rh1 Bh2 Qc5 Kh3 Rc6 Nh6 Bb5 d3 Rg1 Qc8 Nc4 Ng4 Rd6 Ne3 Qd2 Nc6 b8R Raa7 Na5 a3 Rd8 Rag7 Nb7 Bc7 Rd6 Qb2 Ra8 Qa2 Rf1 g1R Ba4 R1g3 Rg1 Rg2 Qb2 Rf2 Kd2 Rh2 Kc3 d2 Bb5 d1R Bd2 Rhg2 Be1 Rd4 Bh4 e1B+ Qd2 Nd8 Be8 Rd3+ Kb4 Nc6+ Ka4 Re2 Qb2 Bb4 Qb3 Qd2 Qd1 Qe1 Qb3 Ra2 Qf7 Qf1 Qg6 Qf2 Qg2+
K3R3/n5qq/n1Rpb1Q1/Qp5p/5R2/rRq1Br2/1Pq2rBk/1N4n1 b - - 0 1 legal: proof: h4 c5 d4 cxd4 f4 e5 a3 exf4 Rh3 g5 Rh1 gxh4 Nc3 b5 Nb1 b4 Nh3 b3 Ng1 Bb4+ axb4 Ke7 Ra3 Kf8 Ra1 Ke8 b5 a6 Nc3 axb5 Na2 bxa2 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kd3 Ke5 e4 h3 g4 f3 c4 f2 c5 d6 g5 h2 g6 f4 g7 f3 c6 Qe7 c7 Ra3+ Qb3 Be6 c8Q Na6 Bg2 f1N Qf8 f2 Qd8 Ng3 Bd2 f1R Qa5 Rf2 Rf1 a1Q Be3 Qc1 Ne2 h5 Rhg1 h1Q Nc3 Ne2 Qc2 Qg5 Qb1 Ne7 g8R Qg7 Rc8 Rhf8 Rc6 Nc8 Qc2 Qh2 Rh1 Qg1 Rh3 Na7 Qb1 R8f3 Rg3 Kf6 e5+ Kf5 Rh3 Kg4 Ke4 d3 Qc2 d2 Nb1 Bg8 e6 d1Q e7 Be6 e8R Qh2 Qd3 Qcc3 Qc2 Ng1 Qd3 Bd7 Kd5 Qdc2 Qe4+ Qf4 Rg3+ Kh4 Qh7 Qfh6 Qg6 Rf6 Rf3 Qhh7 Rf4+ Bg4 Rd1 Kg3 Rd3 Qe1 Rdc3 Kh2 Rb3 Qec3 Rcc4 Nc8 Kc6 Na7+ Kb6 Bd7 Kb7 Be6+ Ka8 Rf3 Rc6 Rf2 Ra4 R6f3 Rf4
3rq2R/K1bQPn2/2B4k/1bN2nb1/1q6/2pp1BnN/1bB3Qp/B5q1 b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 d4 c5 a4 b5 a5 c4 Ra4 bxa4 Qc2 Ra6 Qd2 Rc6 Qd1 Rc5 dxc5 Ba6 Rh3 Bb7 Rh1 Bc8 Kf2 h5 g4 f5 e4 Kf7 g5 Kg6 a6 d5 a7 d4 a8B d3 e5 a3 e6 c2 c6 a2 c7 a1B Bd2 c1B Bfg2 h3 Bgc6 h2 Qe1 f3 Ke3 f2 Bab7 f1N+ Kf4 c3 Ke5 h4 Be4 h3 Bed5 f4 Kd4 f3 Bc6 f2 Qe2 Bd6 e7 Nh6 Bf3 Ba6 c8Q Bab2 Qd7 Bc7 Kc5 Nf7 Be3 Kg7 g6 Bb5 Nd2 Ng3 Ne4 f1Q Qg2 Qe8 Bf4 Qd1 Bd6 Kh6 g7 Bf4 g8B Bg5 Bf4 Qa4 Bc1 Ne5 Bc4 Nf7 Bb3 Rf8 Bc2 Qb3 Bb7 Nc6 Ba8 Nd4 Bc6 Bd6+ Kb6 Bc7+ Ka7 Ndf5 Nc5 Qb4 Ne2 Rh8 Nf4 Rf8 Re1 h1Q Rd1 Ba3 Bb2 Qg1 Ba1 Bb2 Re1 Rh8 Re4 h2 Nh3 Qg8 Rg4 Qg6 Rd4 Rd8 Rf4 Qg8 Rc4 Qe8 Rh4+ Kg6 Rh8 Kg7 Rf8 Kh6 Rh8+
3q2n1/2R2n2/1KBrQqk1/1bN1n1N1/2N1Nq1b/nr6/r2PQ2r/n4r1R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 h4 g5 a4 b5 e4 f5 Ke2 Kf7 Ke3 c5 h5 c3 h6 b3 a5 g2 e5 c4 h7 f4+ Ke4 b2 a6 g3 e6+ Kg6 e7 b4 e8N b3 a7 c2 Qg4 c1N Qd7 f3 Kd4 g4 Ne2 g1R Nec3 f2 Ne4 g2 Rh2 c3 Ra3 g3 Ra5 c2 Re5 Be7 Kd5 Nc6 Rf5 Nd3 Kc4 c1N Kb5 Bh4 Rf4 Ba6+ Ka4 Nde5 N8d6 Bb5+ Ka3 Nf7 Rh1 Nce5 Bc4 f1Q Rf5 Qf4 Kb4 Rf1 Kc5 g1R Bd5 g2 Nbc3 b1R Na4 b2 Bc6 Qf6 Qe6 Nb3+ Kb6 Na1 Nac5 Rd8 Nc4 Rd6 Rh3 Rh1 a8N g1Q Nc7 Rh2 Rh5 Qd4 Rc3 Ne7 Rc2 Ra8 h8Q Ra2 Qe8 Ng8 Q8e7 Rbc1 Rc3 b1N Rh7 Na3 Rh3 Rg2 Rh1 Rh2 Ng3 Nd8 Q7d7 Rb1 Qg4+ Bg5 Ne4 Rd5 Qe2 Rb3 Qd6 Bh4 Ne6 Qd3 Rc7 Ndf7 Qe7 Rd8 N6g5 Qd7 Ka7 Qc8 Qe6 Rd6 Kb6 Qb8+ Nb7 Qd8 Nbc5
1q1q1q1r/b2QQ1QR/2Q1r3/1r5P/r3rBBK/k2nN3/2R1bnq1/1q2b3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 a4 Ke7 c4 Kd6 h4 Kc5 e4 d5 e5 f5 h5 b5 e6 g5 e7 f4 e8Q d3 a5 b3 a6 Kb4 a7 d2+ Ke2 b2 Kf3 b1R c5 g4+ Ke2 f3+ Ke3 f2 Kf4 d4 c6 d3 c7 Ba6 c8Q Nd7 Qb7 Nc5 Qef7 Qb8+ Kg5 Nh6 Be2 f1Q Nf3 g1Q Qbd5 g2 Ne5 g3 Ra3 Ng4 Qe1 Nf2 Rc3 d1R Nf3 d2 Qfd7 Ncd3 Qc7 Qh2 Qcb7 g1R Rc6 g2 Qbf7 Be7+ Kg6 Bh4 Qde6 Qf8 Qg8 Qhb8 Rc8 Rb2 Qgf7 Ka3 Qfe7+ b4 Qb7 b3 Rh2 Rh1 Qe5 g1B Nd4 Qg2+ Bg4 Bg3 Q1e2 Re1 Kg5 d1Q Bf4 Bc4 Qd2 Re4 Qbg7 Rb1 Nf5 b2 Qec7 Ba6 Qe3 Qd2 Qgd7 Qa5 Qcc6 Qad8+ Qf6 Re1 Rc7 b1Q Qed4 R1e2 Ne3 Rb2 Qe5 Rb5 Rb7 Nd1 Rc7 Be1 Rb7 N1f2 Kh4 Rb6 Qeg5 Rbe6 Qfg6 Nb2 Rc7 Be2 Qgg7 Nbd3 Q5e7+ Q8b4 Rc8 Rb8 Rc1 Rb5 Rc7 Qd6 a8Q+ Ra4 Rc5 Q6b8 Rc7+ Bb4 Qef6 Nh3 Qgf7 Qd5 Nd1 Bf3 Qd6 Ba7 Qac6 Rhe1 Rc2 Nhf2 Qg5 R1e5 Ne3 Be2 Qff6 Qf3 Rh7 Qg2 Qfg7 Re4 Qdd7 Be1 Q5e7+
2qb1b2/1NRNQ1Q1/3Rr3/4P1BK/4r1RR/1qn4b/qn2bnk1/r2b3q b - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 c4 Ke7 e4 Kd6 Ke2 Ke5 Kf3 g5 Kg4 f5+ Kf3 d5 h4 b5 a4 d3 h5 f4 h6 d4 a5 b3 h7 d2 c5 g4+ Ke2 b4 c6 b2 a6 f3+ Kd3 Kf4 e5 b3 a7 f2 Ke2 Ne7 c7 Nd7 Rh4 Nd5 Qe1 f1B+ Kd1 Nc5 Rh3 Ne4 Nf3 g1B Ra2 g2 Na3 b1Q Nc4 g3 Rh1 b2 Nh4 Bh3 Ra6 Qc8 Na3 Qa2 Ng6+ Kf3 Rc6 b1Q Nb5 Be3 Rc4 g1Q Nd6 g2 Qh4 Bg5 Nb7 Bd8 Qe7 Rb8 Rh2 Qh1 a8R g1R Ra6 Rg8 h8Q Qbb3+ Rc2 Rg4 Rd6 Ra8 Qhg7 Kg3 Rf2 Ra3 Rf5 Kg2 Rh5 Rf4 Rh4 Rf6 Rf4 Re6 Rh4 Qab1 Rf4 Ra1 Rh4 Q3a2 Rc4 Rh8 Rf4 Rh4 Rb4 Qd7 c8R Qbb3+ Rc2 Qc8 Rc4 Qh2 Rb4 Ba6 Rc4 Nf2+ Ke2 d1N Be3 Nb2 Rc3 Kh1 Kf3 d3 Ra4 d2 Rc7 Nc3 Rac4 Rh7 Rh4 Kg1 Bg5 Qh1+ Kg3 Rh8 Rhf4 Rg8 Kh4 Kg2 Kh5 d1B+ Rf3 Bb5 Rh4 Ng4 Rf4 Bbe2 Qh7 Bh6 Nf8 Nf2+ Rf3 Rgg6 Nd7 Bf8 Qhg7 Rgf6 Rd2 Rf4 Rd6 Rg4 Rf5 Re4+ Rf3 Ng4 Rf4 Nf2+ Rfg4+
2n3Qn/nNQr1qr1/q4Pb1/3qk1br/N1N2n2/1RR1bbK1/3b4/B6N b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 h4 fxe4 a3 g5 Bc4 gxh4 Ba2 b3 Qd3 bxa2 Qf3 Ra4 Qd1 Ra8 c4 Kf7 f4 Ke6 Kf2 h5 g4 b5 g5 d5 c5 b4 c6 b3 a4 h3 a5 e3+ Kf3 d3 a6 d4 c7 d2 g6 b2 a7 d3 g7 e2 Kf2 e1B+ Kf3 h4 Kg4 h2 Kf3 h3 Na3 b1N Nb5 Qd6 Qc2 d1Q+ Ne2 d2 Na3 Rh5 Qc3 Nh6 g8N Qb3 Nb5 d1R Rg1 h1Q+ Rg2 h2 Ng3 Nf7 Bd2 Nh8 Ne4 Qa6 Nbd6 Nd7 Nf2 Nb6 Nb5 Bh6 Nd6 Na3 Nf5 Nb5 Rb1 a1B Qd3 Bd4 Kg3 Bg5 Rg1 Qhb7 Qf3 h1B Qc3 Bf3 Qc1 Bd7 Bc3 Be8 Ba1 Bg6 c8Q+ Kd5 Rg2 e5 Ngh6 e4 Nf7 e3 Nd8 e2 Q1c2 Qd3 Rb3 Be3 Rg1 Rb8 a8N Na7 Rf1 Qg7 Nb7 Qf7 Q2c7 Bb4 Qf8 e1N Nh1 Ng2 Rf2 Qdb5 Rc2 Qc5 Qg7 Rg8 Qf8 Rg7 Qg8 Nbc8 Nb6+ Ke6 Na4 Rd7 Nfd6 Bbd2 Rcc3 Qd5 f5+ Ke5 f6 Nf4 Nc4+
Rrk1Kn1N/q6P/2r5/qnQqbrbQ/2b2nB1/2Q4B/5QbN/2q4b b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 e5 a4 exf4 Na3 c5 Nb1 cxd4 Ra3 h6 Rg3 f3 Bf4 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 Kd2 d5 Kd3 Kd7 h4 f5 c4 b5 e4 b3 e5 f2 g7 g4 h5 g3 a5 f3 a6 g2 c5 f4 h6 b2 h7 b4 a7 b3 Ne2 g1B Qc1 Bb7 e6+ Kc8 c6 Nf6 g8Q Nh5 e7 Bg7 e8Q Nd7 c7 Rb8 a8Q Nf8 Qg6 Be5 Nd2 b1Q+ Qc2 b2 Nc4 Qc1 Na3 b1N Q8f7 Nc3 Qg3 Nb5 Bg2 f1R Nc3 f2 Qh2 f3 Ne4 Qa1 Ng5 Nf4+ Kd2 d3 Ke3 d2 Qc3 d1Q Nb1 Qc1+ Nd2 Qa7+ Qc5 Rg8 Qfh5 Rg6 Nf7 Rc6 Nh8 d4+ Ke4 d3 Kf5 Qd5 Q2h3 Qda2 Qg3 Q2a5 Bh3 Bh2 Qg1 Bg3 Rh2 Bh4 Rg2 Be7 Rg8 Bg5 Qc3 Qd4 Qa6 Qa7 Qb6 Ba8 Qbc5 Bb7 Ne4 d2 Nf6 d1Q Ng4 Qd5 Qg3 Rd1 Qgh4 f1B Nh2 Bc4 Qhe1 f2 Qf1 Kd7 c8B+ Kc7 Qfe2 f1B Qef2 Bg2 Bg4 N8e6 Re8 Rf1 Rd8 Nd3 Kg6 Ndf4+ Kf7 Nf8+ Bce6 Bh1 Rd7+ Kc8 Ke8 Bf3 Bh3 Bg2 Beg4 N4e6 Qfd2 Rf5 Qdf2 Nf4 Rd8+ Kc7 Qb3 Bh1 Qbg3 Qg2 Qhh4 Rc8 Qcd4 Rh6 Qh5 Bbd5 Qe2 Rc6 Qee3 Qgd2 Qgg1 Bdg2 Qc5 Qd5 Qgf2 Rb8 Qed4 Rb7 Ra8 Rb6 Qc3 Rb7 Nf7 Rb8+ Nd8 Kc8 Nf7 Q5c7 Nh8 Qaa5 Qd6 Qca7 Qdc5
r2r3N/1P6/kn1QQK2/n1n2R2/R5b1/rq1qbN2/3qBq1r/Q1Qb2r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 Kd2 g5 Kd3 d5 b4 Kd7 c4 Kc6 h4 Kb6 e4 f5 e5 a5 h5 a3 b5 a2 e6 f4 h6 g2 e7 g3 e8Q f3 h7 a4 Nc3 f2 Qe5 a3 Rb1 a1N Qe4 a2 Rh4 g4 Qg6+ Nf6 Qf5 Na6 Rb3 Bc5 Rh5 Nd7 Nge2 g1Q Rh4 g2 Nb1 g3 Rb2 Nb3 Nec3 a1R Ne2 Na5 Qf8 Ra3+ Rb3 Qg5 Qf4 Rd8 h8Q Qh2 Nd2 g1R Qhe5 g2 Qa1 Rh1 Nf3 g1R Qfc1 Qhg3 Rh5 Rh2 Qd6+ Ka7 Nf4 Nb6 Rh4 Bg4 Be2 f1Q Ng6 Qgf2 Nh8 Qh6 Rh5 Qf4 Rf5 Qh6 Kc2 d3+ Kc3 Be3 c5 d2 c6 d1B c7 Nc5 c8Q Qg5 Qce6 d4+ Kb2 d3 Rb4 d2 Ra4 Bb3 Kc3 d1Q Qab2 Qd5 Qba1 Bd1+ Kb4 Nb3 Kc3 Qb7 Kd3 Qb8 Ke4 Nc5+ Ke5 Qb7 Bc4 Qf4+ Kf6 Qd3 Qc2 Qbd5 Qcc1 Qb3 Bf1 Qdd3 Be2 Qfb4 Ng6 Qbd2 Nh8 Nc8 b6+ Ka6 b7+ Nb6 Qde5 Qg2 Qg3 Qf2 Qgd6
4Q2n/1b1R3B/k1Rb3K/rb4Q1/1n2Qqb1/1QprPq2/n1N1qr1b/1N6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 d4 Kd7 Kd2 Kc6 Ke3 Kb5 Kf4 g5+ Ke5 f5 h4 c5 a4+ Ka6 e3 b5 d5 b3 d6 c3 d7 b2 a5 c2 h5 c1N h6 f4 Kf5 g2 Kg6 g3 h7 c4 Rh4 b4 Na3 b1Q+ Nc2 b3 Nh3 g1B Rh5 b2 Qe1 f3 Be2 f2 Qf1 g4 Rd5 g2 Ra4 g3 Ra3 Qf6+ Kh5 Qf3+ Kg6 Bh2 d8Q g1Q Qe1 f1B Rc3 g2 Qf2 Qa2 Rf5 b1B Qg3 Qgf2 Nd4 g1R Ng5 Bd6 Ne4 Ne7+ Kh6 Nbc6 Nc2 Bb7 Qdg8 Ng6 Rf7 Nb4 Rd7 Rg2 Qg5 Qa4 Qb8 Nca2 Bd3 Rd8 h8Q Q2e2 Nd2 Rf2 Qe8 Nh8 Bh7 Bh3 Qe4 Bg4 Qe8 Rc8 Qe4 Rc5 Qbe8 Rd5 Qeg8 Rd3 Qee8 Ka7 a6 Kb6 a7 Ka6 Ra3 c3 Qb3 Rc8 Qe4 Rc5 Qe8 Rf5 Qe4 Ra5 a8Q+ Kb6 Qae8 Ka6 Nd4 Bc2 Nb1 Bd1 Qbg8 Bb3 Nc2 Bc4 Qge6 Bb5 Q6c4 Nd5 Qb3 Qc4 Ra4 Qc7 Rd4 Ndb4 Rd5 Qc4 Rc5 Qcf7 Rcc7 Q7f4 Rc6+
7n/K3b2p/5k1B/Qb1rRB2/1q1QnRRq/rb4r1/2Nn3P/1nq3nR b - - 0 1 legal: proof: e4 d5 b4 dxe4 c3 a5 f3 axb4 Qc2 bxc3 Qb3 Kd7 Qd1 Ke8 Na3 exf3 Qe2 g5 Kd1 g4 Kc2 Bh6 Nc4 Bf8 Ne5 f2 Nef3 gxf3 Qe1 Bh6 Qd1 Bf8 Kb3 c5 Kc4 f5 Kb5 Kf7 g4 e5 a4 f4 d4 c4 g5 e4 d5 e3 d6 c2 a5 c3 d7 e2 a6 e1Q g6+ Kf6 g7 Nh6 g8R Nf7 a7 Be7 Rb1 Na6 Bd3 f1N Qd2 f2 Rb4 f3 Ba3 c1Q Ra4 c2 Ra5 Nc5 Qb4 Nd2 Nh3 f1B Be2 f2 Qc4 Nce4 Rg4 Rg8 Bf3 Nh8 Rgg1 Rg3 Bg4 b6 Kc6 b5 Bf5 b4 Re5 b3 Nf4 b2 Ng2 b1N Ne3 Qa5 d8R Qb4 Rg2 Be6 Qd4 Bb5+ Kb6 f1R Rf8+ Bf7 Kb7 Rff3 Rgg1 Rd8 a8Q Rd5 Qa5 Qf2 Ka7 Qfe1 Ng2 Rd3 Bb2 Ra3 Ne3 Qf2 Ba1 Qf4 Bb2 Qh4 Ba1 Qe1 Rg2 c1N Nc2 Ne2 Bb2 Ng1 Bc1 Nf1 Bh6 Nfd2 Rf2 Qc1 Rg8 Rd6 Rf3 Bb3 Rg4 Rd5 Rff4
b1rNb3/B2pr3/1B2QNQ1/3N4/1k5n/NP1q2bn/Rnrq4/2q1n1nK b - - 0 1 legal: proof: g4 g5 a4 h5 d4 c5 f4 cxd4 a5 gxf4 g5 e5 a6 e4 Bh3 bxa6 Be6 a5 Ra3 a4 Rf3 exf3 Bg4 hxg4 Kf1 Ke7 c4 Kd6 e4 Kc5 h4 a5 h5 f5 b3 d3 e5 f2 Kg2 f1Q+ Kh2 d2 g6 f3 g7 a3 e6 f2 e7 a2 e8N a1N h6 f4 h7 f3 Nh3 a4 Na3 Nc6 Nc7 Qg5 Nc2 a3 Ng1 a2 Na3 Qd3 Bb2 f1R Ncb5 f2 Kg2 g3 Nc2 Nb4 Rh3 Bd6 Qe2 d1N Nf3 Qgd2 Ne3 Nac2 Ba3 a1Q Nd5 Ne7 g8Q Re1 Rh5 f1B+ Kh1 Nf5 Rh2 Qac1 Qg2 Nb2 Qe6 Nh4 Nfd4 Bb7 Nf6 Rac8 Nc6 Ba8 Nd8 Re8 h8B Re2 Bg7 Ne1 Bh6 Re7 Be3+ Qd4 Bg1 Rf2 Qge4 Q4d3 Rg2 Be2 Qg6 Na4 Bb2 Nd5 Na3 Nf4 Bd4+ Kb4 c5 Bh5 c6 Nb2 c7 Nh3 Ba7 Re2 Bgb6 Rf2 Qh6 Be8 Qh7 Qg5 Qg6 Rc2 Nh5 Qgd2 Nf6 Rb8 c8N Bf4 Nd6 Rbc8 Nde4 Bb8 Nh5 Be5 Nf4 Bd6 Rf2 g2+ Kh2 g1N Bb8 R2c5 Qgg8 Na4 Qgg6 Q2c3 Ra2 Nb2 B8a7 Qc3d2+ Kh1 R5c6 Nf6 Be5 N4h5 Bg3 Nf4 Rc2+ N4d5+
r7/1R2n2Q/r1B1bkb1/3Qb3/6p1/1QrPNQ2/BNbqq3/b1nb2bK b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 e5 a4 exf4 Kf2 d5 Bb2 dxc4 Ke1 h6 Be5 f3 Bf4 Ra6 Ra3 Ra8 Rd3 Bc5 Rd5 gxf4 g5 Be7 g6 Bf8 Rg5 hxg5 Kf2 Ke7 e4 b5 h4 f5 e5 c5 a5 g4 h5 b3 a6 c3 h6 b4 g7 c2 h7 c1B e6 c4 a7 c3 Qe2 c2 Qd1 b2 Be2 b3 Bf1 Kf6 e7 Nd7 e8B Bc5+ Ke1 f2+ Ke2 f3+ Kd3 f4 Ke4 Ne7 g8Q Ne5 Bh3 f1B Bh5 f2 Qd5 f3 Qd3 Be6 Bf7 Be2 Qd6 f1Q Bg2 f2 Qd5 Nd3 Nc3 b1B Nf3 Bb2 Nd4 c1B Nc2 Ba1 Ne3 b2 Q1b3 Bc2 Na4 b1B Nb2 Bed1 Rh4 Rc8 a8Q Qe2 Qab7 f1R Bh1 Nf2+ Kf4 Nd3+ Kg3 Rc6 Bg2 Ra6 Kh2 Rf3 Kh1 Qd6 Rh5 Rha8 Rg5 Bd4 Rg7 Be5 h8Q Rg3 Qh7 Qd8 Nbc4 Ba3 Bf3 Bc5 Nb2 Nc1 Bg8 Bg6 Bg2 Bbc2 Qf3+ Nf5 Q7d5 Bcd4 Rb7 Bc5 Nf1 Bg1 Ne3 Qa5 Qfe4 Ne7 d3 Qad2 Bf7 Rf3 Bg8 Rf5 Qf3 Rf4 Nf5 Rc4 Ne3+ Bgf5 Bf7 Rc3 Qd4 Bc8 Qff4 R8a7 Qba4 Rb3 Bc6 Rc3 Ba2 Be6 Qd5 Ra8 Qg3 Bg6 Qab3 Bgf7 Qgg2 Bg6 Qgf3+
qr5b/3nR2b/P1B1K3/3Qn1Q1/Rn4R1/r2pR2b/nrk1b1B1/1nb3N1 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Nd2 h5 Ndf3 Ke7 Be3 Ke8 Bf2 Ra3 Ne5 Ra8 Kd2 g3 Ng4 gxf2 Ne3 Ra6 g4 Ra3 g5 Ra8 Ng4 hxg4 Kd3 Ke7 Kc4 Kd6 e4 Ke5 h4 b5+ Kd3 f5 a4 d5 c4 b3 a5 g3 c5 g2 h5 b2 h6 b1N c6 b4 h7 f3 g6 b3 c7 f4 g7 b2 Qb3 Ba3 Ra2 Nf6 g8B Nfd7 Ra1 Na6 Ne2 g1B Bh3 f1R Rh2 f2 Qc2 f3 Qd1 Rb8 Kc2 Nb4+ Kb3 d3 a6 d4 Kc4 d2 Qe1 d1N Bg2 Ndc3 Bh1 Nca2 Bd5 d3 Bb7 Nd2+ Kb5 b1N Rh3 Bc1 Bg2 Rg8 h8R Nc4 R8h4 Rg6 Qd2 Rb6+ Ka4 Bh2 Ng1 Kd4 Kb3 Be5 Rg4 Bh8 Bc6 Nce5 Qg5 Re1 Rh7 f1B Re7 Bb7 c8Q f2 Qc7 Be2 Qc8 Qe8 Qd8 Rb5 Qa5 f1B Qd8 Nac3 Ra4 Na2 Bh1 Bh3 Bg2 Rf1 Qa5 Rf4 Qd8 Ke3 Qa5 Kd2 Qd8 Ng6 Kc4 Kc2 Qa5 Rf2 e5 Qd8 e6 Nge5+ Kd4 Rc5 Ke4 Rc3 Qd5 Ra3 Kd4 Nb6 Kc5 Nbd7+ Kd6 Qc8 Rh7 Ba8 e7 Qb7 e8R Qa7 Qh5 Bb7 Qg5 Qa8 Ke6 Bc8 Bb5 Bb7 Rhe7 Bc6 Qf3 Be4 Bc6 Bh7 Qd5 Rf4 Bf3 Rc4 Bh1 Rcc3 Bg2 Rcb3 Rf8 Rb2 Rf3 Nf6 Rg3 Nfd7 Re3
1Q6/1Nb1Bb1n/2n2pR1/1bBn4/1q1Q1Q1Q/r5Nq/b3P2r/K2nb1kn b - - 0 1 illegal: No possible last move
1k1n4/q5Bq/1R1bn3/1b1r3N/1b2qR1B/1qQ2Pr1/2Q1pr1B/2Bb2bK b - - 0 1 legal: proof: c4 b5 e4 f5 a4 bxa4 c5 fxe4 c6 g5 Bd3 g4 Nc3 g3 Bf1 dxc6 Nb1 c5 Qg4 c4 Qh5+ Kd7 Qd1 Ke8 f3 h5 Nc3 Qd6 Ke2 Qa6 Qb3 Bg7 Nd1 Be5 Nf2 gxf2 g4 Bg7 g5 Bf8 Bh3 Qd6 Qd1 Qd8 Bg4 hxg4 Kf1 Kd7 Kg2 f1B+ Kf2 e5 h4 c5 b4 Kc7 d4 a5 d5 c3 g6 c4 g7 c2 h5 a3 h6 g3+ Ke3 g2 Kf2 c3 b5 a4 h7 a2 Bb2 c1B Nh3 g1B+ Kg3 c2 Qd2 a3 Qd4 e3 Qa4 e2 Bc3 e1Q+ Nf2 e4 Qc4+ Nc6 b6+ Kb8 b7 e3 d6 Qe7 d7 Nf6 g8Q Ne8 d8B Bd2 Qg7 c1R Rb1 a1Q Bca5 a2 Qg5 Bf5 Qgg4 Rd1 Qb4 Ng7 Qbd4 Ne6 Bc3 Rg8 h8B Bc2 Bb2 Qh7 Rh4 Bdb4 Qc3 Bb5 Kg2 Bfd6 Nh1 Rd5 Bc1 Bd1 Ng3 Qb2+ Kh1 a1Q Qg6 Ra2 Qgc2 Qb3 Nh5 Rg3 Rf4 Qe2 Bdf6 Ncd8 Bh4 Rb2 Bg7 Qa7 Ra1 Qec4 Ra6 Qce4 Rb6 Ra2 Qb1 Rf2 Qbc2 e2 Qa2 Bdc5 Qac2 Kc7 b8B+ Kc8 Bc7 Bd6 Bb8+ Bc7 Rf8 Rgg2 Be5 Rg7 Bh2 Rgg2 Rf4 Rg3 Rd6 Kb7 Rc6 Be5 Bd6 Ka8 Bf8 Kb8 Bg7 Bed6 Rb6+
4BQ2/1b1QB1qk/n4bq1/4qPp1/1Q2R1rb/rb3R2/b4q2/1QK2nNr b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 h4 fxe4 g4 a5 h5 axb4 g5 Nf6 h6 Ng8 Nd2 Nf6 Ndf3 gxh6 g6 Ng8 Ng5 hxg5 Kd2 h5 f4 e5 a4 b5 c4 d5 g7 Kf7 c5 Kg6 c6 h4 c7 h3 a5 b3 a6 b2 a7 b1Q Ra3 b4 Qg4 d3 Rh2 d4 Ra4 b3 Qg2 e3+ Kd1 b2 Ra5 d2 Qf3 e4 Rf2 h2 Ne2 h1R Ra6+ Kh7 Ra4 Bb7 c8Q Qd6 Rb4 Qe5 Rb3 Nh6 Qc5 Be7 Qa5 Nf5 Rd3 Bf6 Ra3 Na6 Ra1 Ng3 Qb5 Rhc8 Qa4 Rc4 Nc3 Qd3 Ra2 b1B Ra1 Ba2 Qd7 Qb1 Qe2 Qb6 Qe1 e2+ Kc2 e3 Ba3 d1B+ Kc1 d3 f5 Bdb3 Be7 Rg4 Rf3 Qc6 Qd1 e1B Bg2 Qcd6 Ne2 Nf1 Ng1 e2 Qc2 Bh4 g8Q+ Kh6 Qd1 e1Q Qc4 Kh7 Qb4 Qf2 Rb1 Qdd4 Rb2 Qdd6 Re2 Qde6 Re4 Qg8 Qe2 Qg7 Qc2 d2+ Kd1 Rc8 a8Q Rc5 Qf8 Ra5 Qc4 Ra3 Qb4 Bc4 Qcb2 Qg6 Kc2 Bab3+ Kb1 d1Q+ Qc1 Qdd2 Qc2 Qdd6 Kc1 Qg7 Qb1 Ba2 Rd4 Bcb3 Re4 Ng3 Bf1 Qdb6 Bc4 Nf1 Bf7 Qbe6 Be8 Qef7 Qdd4 Qfg6 Qd7
4k1K1/nR4b1/1q3Bbb/2P1Np1n/5qqb/2q4n/1rQ2RQ1/R1b1BR1r b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h5 f6 hxg4 Bh6 e6 Bg5 Ne7 Bc1 Ng8 e4 Rh5 e5 Rh8 Bd3 Bd6 Nc3 Bf8 Nd5 Ra7 Nf4 Ra8 Bf5 exf5 e6 Ra5 e7 Ra8 Ne6 fxe6 Bb2 Kf7 Ba3 Rh6 Bc1 Rh8 Kf2 g5 Kg3 d5 e8R b5 h4 b3 c4 d3 a4 d2 a5 b2 c5 b1Q h5 d4 h6 d3 a6 e5 a7 e4 h7 b4 Nh3 b3 Rh2 b2 Qg1 d1Q Rc2 e3 Rc3 d2 Qf2 e2 Qf1 e1B+ Qf2 Qd4 Re6 Bd7 Rc2 Be8 Re5 Qc3+ Re3 Bg7 Ra3 Nc6 Ng1 Rb8 a8Q Na7 Kg2 g3 Kh3 g2 Qc6 g4+ Kh4 g3 Ne2 g1B Kh5 g2 Qa4 Bh2 Rh3 g1B Qg2 Bh4 Ra1 Bf4 Rh1 Bge3 Rf1 Bfh6 Qc4+ Kf8+ f7 Nf6+ Kg6 Nh5 Nf4 Qf3 Qe4 d1N Nd3 Qf4 Bd2 Nf2 Ne5 Qd1 Be1 Nh3 Rcf2 b1Q Qd3 Rb2 Qc2 Rg8 h8R Bc1 Kh7 Ke7 f8B+ Kd8 Qb3 Qdg4 Qc2 Bf7 Bd6 Re8 Bf8 Bg6+ Kg8 Re6 Rh7 Ke8 Be7 Rd6 Bf6 Rd1 Bd2 Re1 Rf3 Rd1 R1f2 Rh1 Be1 Ra2 Rf1 Qb6 R3f2 Rb2 Ra6 Bh8 Rb7 B8g7 Ra1
3q3R/Kb1p2kN/QQ2N1q1/2Q1qB2/1r1r3b/1qb1n3/1qrrP3/1QB2n2 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 Kd2 g5 Kd3 b5 c4 f5 h4 Kf7 a5 f4 c5 b3 c6 f3 c7 g4 a6 b4 Kc4 f2 Kb5 d3 Kb6 d2 a7 b2 h5 b3 h6 Bb4 h7 Bc3 Nf3 g1R Rh5 g2 Re5 g3 Rb5 Bb7 Ne1 Nh6 Ra5 Na6 Na3 b1R Nc4 b2 Ne3 Nc5 Nf5 Ne4 Qc2 d1Q Ne7 Ng4 Bg5 Rc8 a8Q Kg7 Rd5 Nd2 Nf3 Ne3 Qd3 Qb3+ Qb5 Rh1 Ng6 g1B Qa6 g2 Nf4 Rf8 Nh3 Rf4 Ka7 Rd4 Qbb6 Rd1 Ra5 b1Q Nf4 Rh4 Rd5 Q1b2 h8Q+ Kf7 Qe8+ Kg7 Qe4 Bh2 Ra5 g1Q Qb1 Bg3 Bh3 Ndf1 Bf5 R1d2 Re5 Rg4 Re8 Bh4 Rh8 Qh2 Nd3 Rb4 Nc5 Rgd4 Bf4 Qg2 Ng5 Qgd5 Nh7 Qe5 Nf6 Nh2 Bg5 f1Q Nh7 Qg1 Bf4 Qg6 Bg5 Rb8 c8Q Nhf1 Qcc7 Rc8 Ne6+ Kf7 Qcc5 Rc6 Nef8 Kg7 Bf4 Rcd6 Bg5 Rc2 Ne6+ Kf7 Qba1 Nd1 Nhf8 Rd3 Q6a2 R6d4 Bc1 Nde3 Qaa6 Rdd2 Qb1 Kf6 Nh7+ Kf7 Nef8 Kg7 Ne6+
1Qrn4/2n5/1bq2br1/3b2Q1/B1rRP3/1qq1B1nq/1Rb2N1p/2K1kQQ1 b - - 0 1 illegal: No possible last move
b2BnqN1/K1Q1rN1B/1r3r1q/1B1n1b1p/3B3b/1Pq3n1/3R4/Qk2b2n b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 Ra3 b5 Ra1 bxa4 h4 Ke7 g5 Ke8 g6 hxg6 h5 Qg5 Rh4 Qe7 Rh1 Qd8 h6 Bc5 Ra3 Be7 Rah3 Bf8 Rh5 gxh5 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 c4 f5 c5 a5 c6 d5 b3 g5 c7 d3 Kb6 a3 e3 d2 h7 a2 Qe1 d1B Bb5 a1Q Be2 g4 Qg3 d4 Bf1 d3 Qh3 g3 Rh2 a4 Ra2 f3 Ba3 f4 Bd6 g2 Qh1 a3 Ne2 g1Q Qh2 f2 Qg2+ f3 Qg7 d2 Qg3 Kd3 e4 Nf6 e5 Nc6 e6 Ne8 e7 Bf5 Bh3 f1N+ Nd4 Ra7 Nc3 Nb4 Qe5 f2 Nf3 Qg6 Qh2 Ng3 Qg2 f1R Nh4 Bf3 Nd5 d1N Qb2 Qh6 Qe5 Nf2 Nf6 Nfh1 Ng8 Ba8 Nf3 Qc3 Ng5 Rf3 Rc2 a2 Nf7 a1B Qa5 Bb2 Qa1 Bg7 Bg4 Bf6 Bc5 Rf2 Bd4 Bh4+ Bf6 Bc1 Bf3 Bd2 Be4+ Ke3 Rb2 Be1 Bc2 Kd2 Bb1+ Kc1 Rd2 Qdd3 c8Q Qf1 Qb8 Rd7 Qc7 Nd5+ Ka7 Rd6 Bg5 Rb6 Bf6 Qfc4 Bg5 Qf4 Bf6 Qf8 Bd4 Q4h6 Bf6 Nd6 e8B Rf4 Bb5 Ne8 Bg5 Re4 Bd8 Re7 Nf6 Rg8 h8B Rg6 Ng8 Rgd6 Bd4 Rf6 Qa5 Bc8 Bg6 Bf5 Bh7 Kb1 Qa1+
n2N2B1/kq1qR2n/b2qNP1B/2brr1r1/5Q2/1b5K/r3Bp1b/B1n4Q b - - 0 1 legal: proof: f4 c5 g4 a5 e4 h5 b4 hxg4 a4 axb4 d4 cxd4 Ra2 f5 Ra3 fxe4 Rf3 exf3 Kf2 d5 Kg3 Kd7 c4 Kc7 h4 Kb6 h5 e5 c5+ Ka7 f5 g5 a5 b5 c6 d3 a6 b3 h6 e4 c7 d2 h7 d4 Rh6 e3 Qe2 d1R Rb6 b2 Nd2 b1Q Bb2 d3 Qh2 e2 Ne4 e1R Be5 d2 Qh3 b4 Ne2 b3 N4c3 f2 Qh5 b2 Nf4 Qd6 Ne6 Nd7 Bf4 Re5 Ng7 Qbd3+ Be3 b1Q Rb3+ Nb6 Na2 Nf6 Qh1 Rg8 h8B Nh7 Kh2 g3+ Kg2 g4 Ne6 Rg5 Be2 Qb5 f6 Qbd7 Bd4 Qe4+ Rf3 Qb7 Ba1 Be7 Bg7 Bf8 Qf1 Be7 Nb4 Bf8 Kh1 g2+ Kh2 g3+ Kh3 g1B Bh6 g2 Re3 Bh2 Qh1 g1N+ Kh4 Nf3+ Kh3 Ne1 Qe4 Nd3 Qf4 Nc1 Re4 Rb8 Re3 Na8 Nc6+ Kb6 Nd8 Ka7 Bc4 Ra5 Re4 Ra2 Be2 Re1 Re5 d1B Re3 Bb3 Re5 Kb6 a7 Rd1 Re4 Rdd5 Re3 Qbc6 Re5 Ba6 c8B Qdb7 Bd7 Be7 Be8 Qcd7 Bf7 Rc8 Re4 Rcc5 Bg8 Rde5 Re3 Rcd5 Re4 Nc7 a8Q Bf8 Qc8 Na8 Qc2 Ka7 Qd1 Qdb6 Qh1 Bc5 Re3 Qbd6 Rg3 Rgf5 Rg7 Rg5 Re7
4N1rq/q2Q4/2BP1n2/qqBr1Nn1/b2b1R2/n1N1N3/5pKn/2n1knQ1 b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 g4 h5 f5 hxg4 f6 g3 Qb3 g2 Ra3 exf6 Qc2 f5 Rg3 f4 Qd1 fxg3 d4 Ke7 e4 Ke6 h4 c5 e5 Kf5 h5 Ke4 e6 g5 a5 b5 e7 f5 e8N c3 a6 b3 a7 c4 d5 b4 h6 g4 d6 b2 h7 f4 Rh5 b3 Nf3 g1Q Ng7 g2 Ne8 c2 Nbd2+ Ke3 Ne5 b1N Nd3 c3 Ne4+ Nd2 Ba3 c1Q Nc7 b2 Nf6 b1Q Nfe8 c2 Nc5 g3 Nd3 f3 Nc5 Na6 N7e6 Bd7 Nd4 Nb4 Na4 Qcb2 Rh6 c1N Ne2 Bg7 Nac3 Nf6 Rh5 Qa5 Rg5 Rg8 h8N Ba4 Qb3 Nc2+ Kd1 Kf2 Rf5 Q1a1 Qf7 Qbb5 Nd4 Rb8 Bb4 Na3+ Nc2 Rc8 a8Q Rc5 Qd7 Rd5 Qab7 Qh2 Qbc8 g1N Nf7 g2 Nh6 Nh3 Rf4 g1N Bg2 Ng5 Nf5 Qh8 Bh1 Kf1 Bc5 f2 Be4 N1f3 Qa8 Rd3 Bc6 Rd5 Qad8 Nh2 Q8e7 Nfe4 Qee6 Bd4 Qg6 Nf6 Qgg7 Kg2 Qg6 Ndf1 Qgg7 Nd3+ Ke2 Qa7 Nce3+ Kg1 Nb1 Qc3 Qg6 Qca5 Nc3 Ng3+ Kd2 Nh3 Nc4 Kf1 Qgg7 Nc1 Qg4 Be5+ Ke3 Ke1 Qg6 Nfh5 Qgg7 Ngf1+ Ke4 Bd4 Qg1 Ng4 Kf3 Ng5+ Kg2 Nhf6 Nce3 Nh2 Rh4 Nc4 Rg4 Na3 Rf4
b3nb2/KRNbQ1rP/3n4/2R1rR2/3b1Q1n/1p1Rn1B1/1N4r1/1kqn2r1 b - - 0 1 legal: proof: g4 e5 d4 h5 b4 hxg4 f4 exf4 b5 c5 b6 cxd4 Nh3 f3 Qd2 g3 Bg2 fxg2 Ng1 axb6 Qd3 b5 Qd1 b4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 h4 d5 c4 g5 a4 f5 e3 f4 a5 f3 h5 f2 h6 f1N c5 b3 h7 g4 a6 d3 c6 d2 c7 Kd3 Kb6 b2 e4 d4 e5 Nc6 e6 Ne5 e7 Nf6 e8R Nf3 a7 Bd7 Re1 Qc8 Rh2 Ne8 Re5 Ne3 Reh5 Rg8 Ra6 Rg7 Rh1 Nh4 Rh2 Nef5 Ra2 Nfd6 Nc3 b1B Nge2 g1B Ra1 g2 Na4 g3 Qe1 Kc2 Ra3 d1N Qb4 d3+ Be3 d2 Bf2 Ne3 Qf4 d1N Rf5 Ba2 Rd3 Kb1 Rh3 Bd5 Nd4 Rb8 a8R Bf3 Ka7 b5 Rh2 b4 Nb5 b3 Nb2 Rb6 Rb8 Ba8 Rh3 Rc6 Rh1 Rc5 Rb7 Re5 Be1 Bf2 Rh3 g1R Rh2 Nhg2 Rhh5 Nh4 Rhg5 g2 Rh5 Qd8 c8Q Qc7 Qd8 Qc1 Qe7 Nf1+ Rb6 Bd4 Nc7 Nfe3 Rhg5 Rf1 Rh5 g1R Bg3 Rf2 Rhg5 Rfg2 Rh5 Re4 Rc5 Re6 Rb7 Re5 Rf5
3rbR2/B1r1b3/Bn1B1n1q/RQ1q4/3q2P1/2N1kb1b/1Q2qpr1/2K1Br2 b - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 h5 Qf3 c5 Qg3 cxd4 Nc3 h4 Nd5 hxg3 Nf4 gxf4 Kd1 Kf7 c4 Kf6 h4 Ke5 a4 d5 h5 b5 f6 d3 f7 Kd4 c5 e5 h6 f3 h7 f2 c6 e3 a5 d2 c7 e2+ Kc2 d1Q+ Kb2 e1R a6 g2 a7 e4 Bd3 b3 Ra2 e3 Bb1 b4 Bc2 e2 Bg5 Bb7 c8Q Nd7 Qb8 Nb6 Bf6+ Ke3 Bf5 d4 Be7 d3 Nf3 g1R Qc8 d2 Be4 Nf6 Qc4 Ref1 Qa6 e1Q Rh3 Qd5 Ra4 Rd8 a8Q Rg2 Qb5 Qee2 Bd6 Be7 f8B Rc8 Bg6 Rc7 Qb8 Ba6 Bg7 Rd8 h8B Bb7 Rh1 Bc6 Ng5 Be8 Ne4 Qd4+ Nc3 Qd5 Bb1 Qd4 Ka1 b2+ Ka2 b3+ Ka3 Qd5 Bd3 b1B Ra5 b2 Rh5 Ba2 Rf5 b1Q Qb2 Qbc1 Ba6 Bc4 Bf8 Na4 Qb5 Nb6 Bb4 Ng8 Be5 Nf6 Bed6 Bd3 Ne4 Qcc6 Nc3 Qd4 Bdc5 Qc1 Bd6 d1B Rf4 Qcd5 Bg7 Nh5 Rf8 Be4 Bge5 Nf6 Bdc5 Bf3 Bed6 Bb3 Be5 Bc4 Bed6 Nbd7 Ba7 Nb6 Nb1 Bd3 Be1 Qcc6 Nc3 Bc4 Bc5 Qcd6 Bb4 Q6f4 Bc5 Qh6 Bd6 Qed2 Ne2 Rh2 Qa4 Rfh1 Nc3 Bf1 Qab5 Bh3 Qc2 Qe2 Kb2 Rg2 Kc1 Rf1 Qcb2
7b/rbQ4r/r3B1Rk/1p6/n6r/N1B1n1qb/R1P1n1R1/KR1bQnq1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 f5 e4 Kf7 a4 Kg6 h4 b5 a5 d5 h5+ Kh6 a6 g5 a7 d3 e5 f4 e6 b3 Kc3 b2 e7 b1R e8Q f3 Bd2 f2 Qe4 Rb4 Rh2 Na6 Nf3 g1R Qc4 g2 Rc1 Nc5 Rh3 Na4+ Kd4 Bb7 Ne1 Rh7 Qg4 Qd6 Bf4 d2 Rh1 d1B Qh4 Nf6 Nf3 Ng4 Rb1 Ne3 Ne5 Bg4 Rh2 Bh3 Bd3 f1N Bf5 Be7 Qe1 Bf6 Be6 Bh8 Kd3 d4 Qc7 Rh1 Nc4 g1N Na3 Ne2 Be5 g4 Rg2 g3 Bf6 Rc4 Be5 Rc6 Bg7+ Kg5 h6 Ra6 Be5 Rf7 h7 Kh6 Qec3 Rf4 Qe1 Rh4 Bf6 Rg8 a8R Rg7 Be7 Qe5 Bb4 Rd7 Bc3 Re7 Rh2 g2 Ra7 g1Q Rg2 Qg3 Ra8 Be5 h8R+ Rh7 Rhg8 Bh8 Qc4 Bf3 Rg4 Rha7 Qc7 Bb7 Rg7 Nh2 Kd2 d3 Rg4 Nd4 Kc1 Nhf1 Rb3 d2+ Kb1 d1B Ka1 Rh2 Rb1 Ne2 Rg6+ Kh5 Rf8 Rg4 Rff2 Nc4 Bf6 Rf4 Be5 Bf5 Rf3 Bg4 Rfb3 Nce3 Qc8 Rf7 Qd8 Rh7 R3b2 Rh4 Bc3 Bf5 Ra2 Bh3 Rg8 Kh6 Qc7 Nf4 Rg4 Ne2 Rg6+
k3r3/3N2q1/4q2r/1r1rNRrR/1p1B1n1p/b1P2bqb/5Q2/2nQK1NN b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 a3 gxh4 e3 Nh6 Bc4 Ng8 Ba2 b3 Kf2 bxa2 Ke2 Ra7 Ke1 Ra8 g4 d5 e4 Kd7 e5 Kc6 g5 b5 g6 Kb7 g7 f5 a4 h5 e6 f3 a5 d3 e7 d4 e8N d2+ Kf2 h3 Qf1 d1Q Bf4 h4 Qe2 d3 Qe6 h2 Bh6 f4 Qc4 d2 Qf1 Ne7 g8Q Ng6 Qe1 Bh3 Nc3 Ba3 Qb3 b4 Na4 Qf6 Qe5 Nc6 Qb1 Nd4 Ng7 Rae8 a6+ Ka8 a7 Nb3 Qe1 Nc1 Bg5 Qe6 Nh5 Rh7 Ne2 Rh6 Rf1 h1B Nc5 B1g2 Nd7 Bh1 Bf6 B1g2 Kg1 f2+ Kh2 f3 c3 Nf4 Ng1 Qa4 Qb2 d1R Ne5 Qad7 Ng3 Rd5 Nh1 Qg7 Qd1 Rb5 Re1 f1Q Qf2 Qd3 Rf1 Kb7 a8N Rd5 Qg3 f2 Nb6 Bf3 Nbd7 Qdg6 Be7 Ka7 Bc5+ Ka8 Bd4 Qg5 Re1 f1R Qf2 Rb5 Rb1 a1R Re3 Bc6 Rg3 Q5g6 Rg5 Bf3 Rh5 Qg5 Rb2 Ra2 Re2 Rd2 Re3 Bd5 Rg3 Bf3 Rg4 Q5g6 Rgg5 Re1 Rf5 Re4 Be3 Rdd5 Bb6 Rc4 Bd4 Rcc5 Ne2 Ng2 Kg1 Qg3 Kf1 Nf4+ Ke1 Rc6 Ng1 Rdc5 Rf7 Rd6 Rf6 Nfe2 Ng4 Rg5 Rf5 Nf4+ Nge5 Rdd5 Be3 Qg4 Bc5 Qg3 Bd4
R1b2N2/Q4r2/7b/bQNrkrp1/nn3q1P/K2n2b1/bp3Q2/2QBq1B1 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g3 exf4 b5 fxg3 b6 axb6 Be3 b5 Bc1 b4 a4 h5 Qd3 h4 Ra3 g2 Qd1 Ke7 Rd3 Ke8 Rg3 hxg3 Kd2 Ke7 c4 Ke6 Kc2 g5 Kb2 d5 e4 b5 h4 f5 c5 f4 a5 d3 e5 d4 a6 f3 a7 f2 c6 d2 c7 b3 Qc2 d1Q Qc5 d3 Qc2 d2 Rh2 b4 Nh3 g1B Qd3 g2 Nc3 Nd7 Na2 Qe1 Rh1 d1N+ Kb1 b2 Qa6+ Nb6 Be3 Nf6 Nc1 Bh6 Ka2 b1B+ Kb3 Nb2 Qd3 Qd4 Qe2 Rd8 Nd3 Nfd5 Nc5+ Kf5 e6 N6a4 e7 Ke5 Rh2 Nd3 Nf4 Rb8 a8Q Rb5 Nfe6 Qf4 Rh1 Bh2 e8Q g1B Qa7 Bg3 Qc2 Ra5 Be2 f1R Bd1 Rb5 Qf2 Ba2+ Kc2 Ra5 Qb5 Rd7 Nf8 Rf7 Na6 B1h2 Bb6 Rf5 Nc5 Bg1 Qf3 Bd4 Qf2 Bc3 Rh2 Bc4 Rh1 b3+ Kb1 b2 Rh3 Ba6 c8Q N5b4 Qcc6 Bc8 Qh1 B4e6 Qhg1 Nd5 Ka2 N5b4+ Ka3 Bf7 Qd2 Ba2 Qc1 Rf7 Qf2 Ra6 Bc7+ Rd6 Bb6 Rd5 Rh1 Na6 Rh3 Ba5 Rh1 Nab4 Rh3 Bh2 Rf3 Bg3 Re3+ Kd6 Re8 Rff5 Rd8+ Ke5 Nce6 Qc4 Qfc2 Rf7 Bc5 Bd7 Ra8 R1f5 Bg1 Bc8 Nc5 Qf4 Qf2
R3q1N1/3R3R/3b2k1/1p1br1N1/B2b2R1/2p2P2/1nrq1QK1/1Qnrbnb1 b - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 fxe4 Ba3 bxa3 h6 gxh6 Ra2 h5 Ra1 h4 d4 Kf7 g4 b5 g5 c5 f3 h5 Kf2 e5 d5 c3 d6 h3 d7 c4 a5 a2 a6 e3+ Kg3 h2 a7 e2 Nh3 e1B+ Kg2 h4 Qd3 e4 Rg1 h1R Nf2 c2 Qa3 c1N Ng4 e3 Qb4 e2 Qb3 Bb7 Ne3 Kg6 Qd1 Nc6 Ng4 Nge7 Qd2 Ne5 Na3 Qe8 d8R Nd5 Qa5 Bf2 Nf6 e1B Ng8 Bd6 Be2 Rc8 a8R Ned3 Rd7 Nb2 Qd2 Rh5 Rb1 a1B Bd1 Rc5 Nc2 h3+ Kf1 h2 Nd4 Rc7 Ne6 Bb6 Kg2 Bc6 Rf1 Bg1 Ba4 Rc8 Rf2 Rc7 Re2 Rc8 Re4 Bb7 Rh4 Ne3+ Kh3 Nf1 Qf2 Rc5 Kg2 Re5 Rf4 Bd5 Rg4 Re2 Rh7 Rc2 Rd7 Nbd3 Rh7 Bd4 Rb3 Nb2 Rd3 c3 Rd2 Kf5 g6 Rg5 g7 Rh5 Rf4+ Kg6 Rd1 Rf5 Ng5 Re5 Rg4 Bb8 Re4 Bc6 Bb3 Be3 Nh6 Nd2 g8Q+ Kh5 Qg3 Be1f2 Ba4 Bb6 Qa2 Kg6 Rh4 Bbc5 Rd7 Bd5 Rh3 Bbd6 Re1 Bcd4 Qh4 Bg3 Re2 Bge3 Qb1 Rd1 Ng8 Bg1 Re4 Nf1+ Kh1 B3f2 Qg3 Be1 Rhh7 Nd2 Kg2 Nf1+ Kh3 h1Q+ Qh2 Ng3 Rg4 Qg2+ Kh4 Qe2 Kh3 Qd2 Qf2 Nf1 Kg2
3N1q2/3Pp1p1/1rb3Kb/1qQBQRb1/1N2bR2/3nk1n1/n5r1/1b1qN1N1 b - - 0 1 illegal: Other
Qq1q2qr/3p2B1/3n1b1p/2krRBRN/b1Bnq1q1/5QP1/5b2/K1B3r1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Kd2 h3 Ke1 exf6 Bf4 f5 Bc1 f4 Na3 Qa5 Nc4 Qg5 Ne3 Ra3 Ng2 Rf3 Qd3 hxg2 h4 Be7 h5 Bf8 h6 Qd8 Qg6 Ra3 h7 Ra8 Qh6 gxh6 Kd2 Ke7 c4 Kd6 Kc2 b5 Kb2 f5 a4 f3 e4 f4 e5+ Kc5 a5 d3 a6 f2 a7 d2 e6 d1Q e7 f3 e8B b3 Ra4 b4 Ra6 Bb7 Ra4 Nc6 Ka1 b2+ Kb1 Bg7 Be2 f1Q Ra2 f2 Bg4 Nf6 Nf3 g1B Nd4 Ne4 Bf5 Nd6 Rh5 Qg4 Bf7 Bf6 Ne2 Nd4 Nf4 Bc6 Rg5 Ba4 Nh5 Qfd1 Ra3 f1R Re3 Bf2 Ka2 Rc8 a8Q Rg1 Qf3 Qb3+ Kb1 Rb8 Re8 Rb5 Re5+ Kb6 B7e6 Rd5 c5+ Kb5 c6 Kb6 c7 Kc5 Bc2 Qc4 Rgf5 Qgg8 Rg5 Qe2 Bcf5 Qd1 Ka2 b3+ Ka3 b1Q c8Q+ Kb5 Bf7 b2 Qa8 Qe4 Ka2 Kb6 Qf4 Qg4 Qf3 Rb5 Bc4 b1Q+ Ka3 Qb4+ Ka2 Rd5 Ka1 Kc5 Rg6 Qe6 Rg7 Qbb8 Rg5 Rg8 h8B Qf7 Bg7 Rh8 Re6 Qfg8 Re5
5rnn/rNKB4/1R2prkP/1rQR4/p2Rb1nB/5qr1/r2b3Q/1Rr5 b - - 0 1 legal: proof: d4 b5 g4 g5 f4 gxf4 a4 bxa4 e4 f5 g5 fxe4 Nc3 c5 Nd5 cxd4 Ne3 h5 Ng4 hxg4 Ke2 Kf7 c4 a5 b4 d5 h4 d3+ Kd2 a3 Kc3 e6 Kd4 f3 Ke5 f2 b5 a4 b6 d2 h5 a2 h6 g3 b7 g2 c5 d4 c6 d3 c7 e3 Bb2 e2 Nh3 g1R Qe1 d1N Bc3 d2 Bd4 Ra7 Rh2 Ne3 Nf4 d1R Rh5 Bb4 Rb1 a1R Nd3 Ra2 Nc5 Rc1 Qd2 e1R Bb5 f1R Qh2 Qf6+ Kd6 Bd2 Bd7 Nc6 b8R Ne5 Nb7 N3g4 Bf2 Qf3 Bh4 Rg3 Rb6 Re4 Rb1 Rb4 g6+ Kf8 g7+ Kf7 Rg5 Ng6 Rd5 Rb5 Rd4 Rh7 Rd5 Nh8 Rd4 Kg6 Rd5 Ne7 g8R+ Rg7 Rf8 Ng8 Rf4 Rf7 Rfd4 Rf2 Nd8 Rf8 Rb6 Ba6 c8Q Bb7 Qc5 Bc6 Nb7 Rff1 Rf5 Be4 Re5 Qe2 Kc7 R1f6 Rh5 Qf3 Rhd5
1qN3q1/1p1NN2b/1P1r2qq/3nQ1r1/p1kb1NB1/n1r5/Qn1B4/2R1bK2 b - - 0 1 legal: proof: f4 c5 a4 e5 b4 exf4 d4 cxd4 c4 g5 h4 gxh4 Nd2 Qa5 Ra3 Qxa4 Rb3 Qa2 Rc3 dxc3 g4 Ke7 e4 Kd6 g5 f5 g6 a5 g7 h5 b5 Kc5 e5 d5 b6 h3 e6 c2 e7 h4 e8N h2 Bg2 f3 Nf6 a4 Nb1 h3 Na3 f2+ Kf1 f4 Be4 d4 Bc6 d3 Qg4 d2 Qd7 d1N Qe6 Rh5 Ne8 Na6 Qe2 Ne7 g8N Bg7 Nc7 Nb2 Bd2 c1B Qe6 Rg5 Qe2 Nd5 Nb1 Bd4 Ne7 Bf5 Qe1 Nab4 Nc8 Nc2 Nd6 Na3 Ndb5 Rd8 Qe6 Rd6 Bd7 Bh7 N1c3 Kb4 c5 Kc4 c6 Qb1 Qf7 Qg6 Na6 Qg8 Ke2 f1R c7 Rf3 Na7 Re3+ Kf1 f3 Qe8 f2 Nge2 Rf3 Rg1 h1Q Nc8 h2 Nc5 Rd3 Qf7 Qe4 Nf4 h1Q Bg4 Qeg6 Nd7 Qhh6 Qe8 Rg3 Qe5 Re3 Nce2 Rb3 Ng3 Rf3 Nf5 Rc3 Be3 Bd2 Nfe7 Be1 Bd2 Kb3 Na7 Qb8 c8Q Kb4 Qf8 Kc4 Qf7 Qgg8 Nac8 Qhg6 Kg2 f1Q+ Kh2 Qfd3 Kg2 Qh6 Qfe6 Bef2 Rc1 Qdg6 Kf1 Be1 Q6f5 Bdf2 Qb1 Bd4 Qa2+
2Nq3b/p3QnN1/3qr2P/1qq2bN1/3N2rB/pBrb4/K2Q2n1/3n1kR1 b - - 0 1 illegal: No possible last move
1BK2B2/qn1r4/bQb3n1/3QRr1N/P2Rn3/kn1pb1b1/3BB1p1/2n1r3 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 Kd2 e5 c4 Ke7 f4 Kd6 h4 Kc5 f5 Kb4 h5 b5 f6 d5 f7 g5 c5 g3 h6 a2 c6 e3+ Kd3 g4 h7 g2 c7 e2 Be3 e1R Bc1 g3 Bd2+ Ka3 Qh5 b4 Qg5 b3 Rh4 b2 Qf4 b1N Rh6 e4+ Kc2 e3 Kd3 e2 Rd6 Nd7 Qe5 Ra7 Qf6 Qe7 Rb6 Nc5+ Kc2 Ba6 c8Q Rd7 Bg5 Nd2 Bh6 d3+ Kc3 Nb7 Kd4 Ne4 Qa8 d2 Qh4 d1B Bd2 Bh6 Re6 Be3+ Ke5 d4 Nh3 g1N f8B g2 Qf6 d3 Nf4 Bb3 Rb1 a1N Nh5 Bd5 Rb4 Nb3 Rd4 Bc6 Kf5 Qc5+ Re5 Ne7+ Ke6 Ng6 Qfd8 Rg8 h8B Rgg7 Qb6 Rgf7 Bhg7 Rf3 Bd6 Rf5 Bb8 Qa5 Qb5 Qb6 Qa5 Qa7 Qb6 Rc1 Bh6 e1B Be2 Bg3 Bg7 Re1 Bf8+ Nbd6 Bd1 Ne2 Qab7 Nec1 Be2 Rh7 Qf7 Bcb7 Kd7 Bc6+ Kd8 Rg7 Qd5 Rgf7 Re7 Nb7+ Kc8 Rg7 Re5+ Re7 Bh6 Rd7 Bf8+
R1Q2rr1/1q5B/q3pp2/q3Q2r/n1r2R1n/1NB2bb1/1Pr1r3/1KQQ1k2 b - - 0 1 legal: proof: d4 b5 h4 g5 e4 gxh4 f4 c5 a4 bxa4 Nd2 cxd4 Ndf3 e6 Ng5 e5 Ne6 exf4 e5 Bg7 Nc5 Bf8 e6 Na6 e7 Nb8 Ne6 dxe6 Qg4 Kd7 Qh5 Ke8 Qd1 Kd7 Kd2 Kc6 e8Q+ Kd5 g4 Ke4 c4 h5 Kc2 a5 c5 a3 c6 d3+ Kb1 f3 g5 f2 c7 a4 g6 h3 g7 h2 Ra2 d2 Qd7 Ke3 Be2 f1Q Bc4 Kf2 Qc2 h4 Qg6 d1R Ra1 a2+ Kc2 h3 Bd5 a3 Bg2 f6 Nf3 Na6 Rg1 h1R Bd2 h2 Bh6 Nc5 Ng5 Qa6 Qb5 Bd6 Qc4 Bg3 Bh3 Rd4 Rab1 a1R Qh7 a2 Qe4 Na4 Bf5 Ne7 g8Q Bb7 c8Q Qda5 Bh7 Nf5 Nf3 Nh4 Qgd8 Rf8 Nd2 Bd5 Qf5+ Bf3 Qe5 Rg4 Qcc3 Rc4 Nb3 Qb7 Rgd1 Re1 Rd4 h1R Rf4 Kf1 Qd1 Qaa6 Rc1 Rb1 Bg5 a1Q Bh6 Rg8 Bf8 Qa3 Bb4 Ra1 Ba5 Qc5 Bb4 Qca5 Rb1 Ra3 Ra1 Rh2+ Kb1 Rc2 Qce3 Rb8 Qec1 Ra2 Qcc5 Rbf8 Qc8 Ra3 Nd4 Re3 Nb3 Ree2 Bc3 Kg2 Bd2 Rh1 Be1 Kf1 Qdd2 Q6b5 Ka2 Ng6 Qec5 Nb6+ Kb1 Qaa4 Qf5 Rh5 Qe4 Nh4 Qdd1 Qaa8 Ra7 Qa5 Qe5 Na4 Ra6 Qbb6 Ra7 Qab7 Ra8 Q6a6 Bc3+
1Q3B2/2N2p2/1bBbr1k1/1P1q1R2/n2b1q1b/2bKnN1N/2n2Np1/1rQ4b b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 hxg4 f6 g3 Bb2 g2 Ra3 exf6 Bc1 f5 Rd3 f4 Rg3 fxg3 Kd2 g5 e4 d5 c4 a5 h4 d3 e5 g4 b5 a3 h5 a4 c5 d4 c6 a2 c7 a1B e6 a3 h6 a2 e7 Nd7 h7 Nb6 Rh6 Na4 Rd6 Nh6 Ne2 g1B Rg6 g2 Ra6 g3 Ra7 Qd5 Nbc3 Ng4 Nf4 Bf2 Nb1 g1B Ng2 Bb7 c8N Ne3 Qb3 Nc2 Qc4 Bc3+ Kd1 a1B Be2 d2 Ra6 Qg5 Nf4 Bh1 Rb6 g2 Ba3 Bh4 Nh3 Qf4 Rf6 Rg8 h8Q Rg6 Rf5 Re6 Bf3 Be3 Ke2 d1N Re5 Bg1 Bb4 Nde3 Nd2 Kd7 e8N Bd6 Rf5 Ra5 Na7 Ke7 Nc7 Bgf2 Qb8 Ra6 Rd5 Kf6 Rf5+ Kg6 Ne4 Bg1 Nef2 Rc6 Qd3 Rc4 Bc5 Rb4 Qd1 Rb1 Nc6 Nf1+ Re5 Be1 Qf8 Bde7 Nd3 Ba5 Bb4 Bc3 Qc1 Bb6 Qb8 Be3 Ndf2 d3+ Kd1 d2 Ke2 B3c5 Nd4 Nfe3 Bc6 Bef6 Rf5 Bf8 Kd3 Be5 Nf3 d1Q+ Nd2 Qh5 Nf3 Bed4 Rd5 Qhe5 Rc5 Qd6 Rf5 Qd5 Bd6 Bfe7 Be5 Bec5 Bg7 Bd6 Bf8
q5kn/3bQ3/3nqN1q/1NppPn2/N1N5/b4K1n/B1r1rB2/2R1qnQ1 b - - 0 1 legal: proof: f4 c5 a4 g5 b4 e5 h4 gxh4 c4 exf4 d4 Ke7 b5 Ke8 b6 axb6 Ra3 Ke7 Rc3 cxd4 c5 Ke8 c6 Bg7 Rc4 Bf8 Rc5 bxc5 Kf2 h5 g4 d5 e4 f5 g5 Kf7 c7 b5 a5 h3 e5 h2 a6 d3 a7 b4 Qa4 b3 Qb5 b2 Qa5 h4 Bh3 f3 Bg4 h3 Qa6 f4 Be3 d2 Qb7 d1N+ Kf1 f2 Ke2 f1N Na3 b1Q Qa6 f3+ Ke1 f2+ Ke2 Qb6 Qa5 Nd2 Qb5 f1N Qa5 Qe6 Nf3 Nc4 Nh4 Nc6 Bd4 Nce7 Nf5 Ng6 Ne3 N8e7 Bf5 Kg8 Bb1 Nd6 Nb5 Nf2 Kf3 Bd7 c8N Bh6 Nb6 Nef5 Nbc4 Rh7 Qa6 Nh8 g6 Qc8 Ng4 Bc1 g7 Ba3 Ba2 Rh4 Nge3 Re4 Ng4 Re2 Qb7 Rb8 a8N Qc6 Rg1 h1Q+ Rg2 h2 Nab6 Qc8 Na4 Nh3 Bf2 Qg1 Qa7 h1Q Qc7 Qce8 Qd8 Qhh2 Qe7 Rb7 Rg3 Qa8 Rg2 Nf4 Rg3 Qhh6 Rg2 Nh3 Rh2 N1g3 Rh1 Qb1 Rc1 Nf1 Qg5 Qb4 Qe7 Qe1 Nge3 Ndf7 Nd4 Rbb2 Nb5 Kh7 Bh4 N7d6 Bf2 Qhg6 g8Q+ Kh6 Rd1 Rbc2 Rc1 Qh7 Qg4 Qg7 Qgg5+ Kh7 Qg1 Kg8 Ng4 Qgh6 Nf6#
1b1rnK1b/n1Q1p2b/k7/3BQ3/qPr2Q2/Rq1n1NN1/bQ1b2p1/2n2B2 b - - 0 1 legal: proof: f4 b5 d4 g5 a4 bxa4 g4 c5 b4 cxd4 e4 f5 Bd2 fxe4 f5 h6 Bf4 Qa5 Ra3 Qc7 Rg3 gxf4 g5 Qb6 g6 Qd8 Rg5 hxg5 Kf2 a5 c4 d5 h4 Kd7 g7 Kc6 c5 Kb7 f6 g4 f7 e3+ Ke2 f3+ Kd3 e2 c6+ Ka6 h5 e1B h6 f2 h7 g3 c7 g2 Rh5 a3 Rg5 a4 Rg3 a2 Rg4 a1B Ne2 a3 Rg5 a2 Rh5 Nf6 g8Q Qd7 Nc1 Nc6 Qdg4 Ne8 Nd2 Bh6 f8Q Bf4 Qg8g7 Na7 Ne4 Qa4 Be2 f1B Rh3 Bf5 Qe5 Rd8 Qh5 Bed2 Qeg7 Bb2 Qhg5 a1N Qe5 Nb3 Qg3 Rg8 h8Q Bh7 Qff5 Rg4 Ng5 Ba1 Qh2 Bg3 Nf3 Re4 Qff4 Bb2 Kc2+ d3+ Kd1 d4 c8B+ Kb6 Be6 Ka6 Na2 Ba1 Nc3 Nc1+ Bb3 Bb2 Qc7 Ba1 Qfe5 Rg4 Ne4 Bgf4 Ng3 Bb2 Qc2 Ba1 Qb2 Rh4 Qg5 Bb8 Qhe5 Kb7 Qc7+ Ka6 Nf5 Bf4 Ng1 Qb5 Qb1 d2 Kc2 Bc3 Qb2 d1N Re3 Be5 Nf3 Bh8 Qhe5 Nf2 Bbc4 Re4 Ng3 Be1 Qgf4 d3+ Kb1 d2 Kc2 Red4+ Kc3 Re4 Bed3 Be2 Bg8 Bd1 Bf1 Bb3 Rd3 Qa4 Bf7 Ba2 Bb3 Re2 Kc4 d1Q Kc5 Rd2 Bf7 Re2 Ra3 Qd3 Bb3 Re4 Bg8 Bd2 Bd5 Nd6 Ne2 Qb3 Ng3+ Nab5 Kc6 Nfd3 Bf7 Rc4+ Kd5 Qd1 Ke6 Ne8 Bg8 Qb3 Kf7 Na7 Kf8 Be4 Bf7 Bh7 Bd5
6bb/Pqp3rN/k5N1/2n5/1q1N1RK1/1Qq1pR2/1Bbq1Qn1/Nr3q1b b - - 0 1 legal: proof: c4 a5 f4 h5 e4 g5 b4 gxf4 g4 axb4 e5 d5 e6 dxc4 g5 fxe6 Bg2 e5 Bf3 e4 Bg4 hxg4 Ke2 Kd7 d4 Kc6 a4 Kb6 h4 e5 g6 b3 g7 e3 a5+ Ka6 d5 b5 d6 b2 h5 g3 Kf3 e2 d7 e1Q h6 b4 h7 c3 Rh6+ Nf6 g8Q e4+ Kg2 f3+ Kh3 e3 Qd2 f2 Ne2 f1Q+ Kh4 g2+ Ng3 g1Q Na3 b1B Nc4 b3 Ra2 c2 Qg7 b2 Ra3 Qgg2 Ra2 Bb7 Ra4 Ba2 Qg8 b1B Bb2 c1Q Qf2 Qcc3 Nh5 Bg7 Nd2 Bc2 Qb3 Rg8 Rf4 Bh8 Rf3 Qc8 d8N Nd7 Nc6 Nc5 Nd4 Rb8 Rg6 Bc6 Rg4 Rg7 Rgf4 Nd5 Nf6 Qb7 Kh5 Qfc4 Kh4 Qgf1 Kh5 Q4b4 Kh4 Ka7 a6 Kb6 a7 Ka6 Nb1 Qed2 Na3 Ne7 Kh5 Ng6 Kg4 Nh4+ Kh5 Bd1 Nac2 Ng2 Na1 Bc2 Bc1 Bg6+ Kg4 Bd5 Bb2 Bc6 Qd1 Bg8 Qb3 Bc2+ Kh5 Qbc4 Rh3 Qbb5 Ba3 Nh4 Qb1 Bh1 Rhf3 Ng2 Qb2 Qc6 Qa2 Rb1 Qb3 Qb7 Bb2 Rf7 Kg5 Q4b4 Kg4 Bg7 h8N Re7 Ng6 Bh8 Nh7 Rd7 Nf5 Rg7 Nd4
5q1b/1K5n/1Q1Qq3/1RPBqNr1/1kn2p1B/1q1Q1b2/p1b3Q1/nN4rn b - - 0 1 illegal: No possible last move
6Rn/N4qR1/r1bBQb2/1Qp1b1rR/1nr2Rn1/1KN1b3/p1r1qP2/2k5 b - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 h4 gxh4 e4 f5 a5 fxe4 a6 bxa6 Bd3 a5 Bc2 a4 Bb3 axb3 g4 Kf7 d4 Ke6 Kd2 Kd5 Kc3 c5 b5 a5 b6 h5 b7 e5 g5 h3 g6 b2 g7 e3 Nf3 Ke4 d5 h2 d6 a4 d7 e2 Qd2 e1N Rg1 h1R Rg2 h4 Rh2 h3 Qd1 a3 Ng1 a2 Na3 b1Q Qa4 Rh5 Nb5 Be7 Qa5 Bf6 Qb4 Ne7 g8R Na6 b8R Qf8 d8Q Nf3 Bb2 Bd7 Qda5 Qd1 Qba4 Qf7 Qb3 Bc6 Rhg2 h2 Rc1 Ng6 Na7 Nh8 Rbd8 Nb4 R8g7 Rg5 Nc8 Ra6 Ne2 Rf1 Ba3 h1R Ne7 Nh2 Kb2 c3+ Ka1 c2 Rg3 Ng4 Kb2 Rh3 Rb1 c1B+ Kc3 Re1 Ng1 Re2 Qe6 Rc2+ Kb3 Qf1 Rdg8 Qb5 Nf3 Kd3 Ng1+ Kd2 Nc8 e4 Na7 e3 Bb2 e2 Be5 e1B Rf3 Bb2 Bd6 Bbe5 Ne2 Rg3 Nd4 Qe2 Ndb5 Rc4 Rc1 Rg1 Rf4 Rg3+ Ka4 Rgc3 Ra1 Rc2 Kb3 Qe3+ Nc3 Qe2 Nb1+ Kd1 Qa4 B1c3 Qb5 Bcd4 Nc3+ Kd2 Rh1 Be3 Rh3 Kc1 Rh5
4b2K/1QQ2R1p/1rBqNpb1/2Nn1PqQ/3b1r1b/1QnB3q/2q5/k2n4 b - - 0 1 legal: proof: h4 e5 d4 d5 b4 a5 a4 axb4 c4 dxc4 d5 g5 Qd3 gxh4 Qd1 b3 Be3 c3 Bd4 exd4 Ra2 Ba3 Rd2 Bf8 Rc2 bxc2 g4 Kd7 f4 Kd6 Kf2 Kc5 Kf3 Kb4 Ke4 Kb3 Ke5 Kb2 e4 c1B a5 c5 g5 b5 d6 h3 g6 b4 g7 d3 a6 f6+ Kd5 c2 e5 b3 d7 h2 Ke6 d2 Kf7 c4 e6 c3 a7 Ne7 g8B Na6 Bb5 Nc7 Qh5 Ka1 Qg4 b2 Bf1 Nb5 Bd3 Qb6 d8Q Bd7 Ne2 Qc7 Rf1 h1Q Qg1 Qh3 Qb6 Qe5 Rf2 d1N Rg2 Rc8 Rg7 Rc4 Nd2 b1B a8Q+ Ra4 Ne4 Bd2 Qaa6 c1Q Bc4 c2 Nd4 Be1 Qdc7 Nbc3 Qb3 Bh4 Bd5 Qd2 Bc6 c1Q Qa8 Qg5 Qac8 Nf5 e7 Nfe3 e8Q Bc5 Qa8 Bb6 Kf8 Bd3 Qh5 Qa3+ Re7 Qc2 Qa6 Qd6 Qab5 Bc4 f5 Bf7 Q5b4 Bg6 Kg7 Ba7 Bc4 Ned5 Rf7 Rb8 Ne6 Be8 Bd3 Bg1 Qbb6 Rc4 N4c5 Rf4 Kh8 Bd4 Qc8 Rb7 Qbc7 Rb6 Q8b7
4K2n/1QR1b1P1/1Q2bp2/1rq1k1QN/1r1n1N2/nr2qr1b/1BpR4/3Q1n2 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 h4 g5 a3 gxh4 e3 c3 Be2 Ra7 Bc4 Ra8 Ba2 b3 Qf3 bxa2 Qh5 Nd7 Qd1 Nb8 Kf2 Kd7 Kf3 Ke6 Ke4 c5 g4 b5 d4 h5 g5 f3 g6 f2 g7 f1N a4 b4 a5 b3 a6 c4 a7 c2 Qd3 c3 Qe2 h3 Bd2 c1Q Kf4 h2 e4 c2 e5 f6 Nc3 b2 Be3 b1N Qf2 h4 Ne4 h3 Ng3 Nh6 Nh5 Qb6 Ne2 Be7 Ke4 Qe1 Bc1 Nc6 Bb2 Rb8 a8Q Nf7 Qb7 Qc5 Qe3 Rh6 Qg5 Nh8 Kf4 Kd5 e6+ Kd6 d5 Na3 Kg4 Nd4 Nef4 Qe3 Rg1 h1R Rg2 h2 Rd2 Rg6 Re1 a1R Ree2 Nc6 Kf5 Rg1 Qb6 h1B Qb7 Rg3 Qb6 Qec3 Re4 Rb1 Rc4 Q5e3 Qb7 Bg2 Rc5 Nd8 Rc7 Nc6 Qb6 Rf3 Qb7 Kc5 d6 Qb4 d7 Bh3+ Qg4 Qbd4 d8Q Bd7 Qb6+ Kd6 Qc8 Rh6 Qcb7 Rh7 Ng3 Rh4 Nh5 Nf7 Kg6 Ke5 Qg1 Qdc3 Qg2 Nd4 Qe2 Qc5 Qd1 Bd8 e7 Bde6 e8Q Be7 Bc3 Rb3 Bb2 Ra8 Qh8 Ra5 Qh6 Rab5 Kh7 Bef5+ Kg8 Nh8 Qg5 Ng6 Kf7 Nh8+ Ke8 Rg4 Qh6 Be6 Qg6 Rh4 Nd5 Rg4 Bc1 Nf5 Qg5 Ra4 Ndf4 Rab4 Qh6 Nd4 Bb2 Rg3 Qg6 Rf3 Qg5+
q1R1q3/PQ2Q1qR/r3B2n/1r1p4/1b1p3r/n4Nb1/b1r2QK1/k2q1N1Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 e4 Ke7 h4 Kf6 c4 Ke5 a4 f5 a5 g5 c5 f4 h5 f3 c6 b3 a6 g2 Kf2 b2 c7 g3+ Ke1 g4 h6 f2+ Ke2 Qe8 h7 Nh6 Qe1 Nc6 Na3 b1Q Qd2 Bb4 Qc1 Qa2+ Nc2 Na5 Nh3 g1R Qb1 g2 Qd1 g3 Kf3 Nc4 Qb1 Na3 Be2 f1Q+ Nf2 Qd1 Nh3 d6 Ne3 Be6 c8Q Rf1+ Nf2 g1B Rh3 g2 Qcc1 Bh2 Qcb2 g1Q Q1c2 b5 Rc1 Qg7 Qc6 Bf7 Qb7 Bg3 Rc8 Rg1 Qd2 Rg2 Nf1 Bb3 Qe1 d5 Nd3+ Kd6 Ne5 Ra7 Rd8+ Kc5 Qf2 Qaa1 Rb8 Ba2 Rh5 Rh2 Rd8 Rh4 Kg2 Rf8 h8Q Rf3 Bc4 Rc3 Be2 Rc2 Bg4 Ra8 Nf3 Kc4 e5 Kc3 e6 Kb2 e7 Ng8 Ne5 Qef8 e8Q Bd6 Nd2 b4 Be2 b3 Bf1 Rh2+ Kg1 Bb1 Rg5 Nc4 Qa4 Qe8 Qad7 Qa3 Rh5 Ba2 Qdc7 Ka1 Nef3 b2 Rc8 b1R Qe7 Rb5 Qh7 Bb4 Qh6 Qe2 Bh3 Qd1+ Nf1 Qa4 Rh4 Na3 Be6 Rh1+ Kg2 Rh3 Qhf6 Qa5 Rh8 Nh6 Rh7 Rh5 Qh4 Ra7 Qh1 Rh4 Rc5 Qad8 Rc6 Qb8 Rc8 Qa8 Qc6 Rd7 a7 Rd6 Qcc7 Ra6 Qb7
2b1r2B/6r1/rnN2r1Q/1n1Q1b2/1bn1Q1p1/kp3nR1/2PB1b1q/NQK5 b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 c5 d4 cxd4 a4 f5 Bb5 fxe4 f5 Nc6 Ra3 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Be2 Na6 Bf3 Nb8 Bg4 hxg4 Kd2 e5 h4 Ke7 f6+ Kd6 a5 Kc5 a6 d5 h5 b5 a7 e3+ Kd3 b3 h6 Kb4 f7 b2 h7 e2 Kd2 e1B+ Kd3 e4+ Ke2 e3 g6 f3+ Kd3 e2 g7 f2 Bg5 f1B Nd2 b1N Rh3 Nf6 g8Q Qc7 Qg6 Nbd7 Rh4 Nc3 Ndf3 Ka3 Qg8 b4 Qg7 Qh2 Nh3 Nb5 Qh6 Bf2 Kd2 e1N Qg6 d3 Nf4 d4 Qf5 Nb6 Ng6 Ne8 Qd5 Ned6 Nge5 Ndc4+ Kc1 d2+ Kb1 d3 Nd4 Nf3 Rh5 Rg8 h8B Rg7 Rh7 Bf5 Rh5 Re8 Nb3 Bd6 Na1 b3 f8Q Bb4 Qe1 d1R+ Bc1+ Ka4 Qf6 d2 Nc6 Bg2 Qee4 Rf1 Qh6 d1R Rh3 Rd4 Qe1 Rd2 Qde4 Rd6 Bd2 Ka3 Kc1 Rf6 Qd1 Re1 Qd5 R1e6 Rg3 Bf1 Qe1 Rd6 Qee4 Bc8 Qe1 Bd3 Qh1 Bdf5 a8Q+ Ra7 Qb7 Ra6 Qe7 Rd7 Qee5 Rg7 Qb2+ Ka4 Qb1 Ka3 Qe1 Bd4 Qee5 Bf2 Qee4
1rQnQB2/nrbn1pb1/1bkr4/2nB4/1QK3NQ/8/P1bpNq2/r5R1 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bb2 f4 Ba3 Ra4 Bc1 Ra8 g4 h5 Nd2 hxg4 Rb1 g3 Rb3 g2 Rg3 fxg3 e4 g5 Ke2 d5 Kd3 Kd7 h4 b5 c4 b3 e5 g4 h5 b4 e6+ Kc6 c5 b2 e7 b1R e8Q+ Nd7 h6 b3 h7 b2 Qe5 Rb8 Rh3 Qh4 Qe7 Bg7 Qd8 Ne7 Qa5 Rd8 Ne2 g1R h8Q g2 Nf4 g3 Ke2 d3+ Ke3 d4+ Ke4 Ba6 Nb3 d2 Qc2 d1N Qa3 d3 Be2 d2 Bc4 Nf2+ Ke3 Ne4 Be6 Bd3 Qc4 Bc2 Ng6 Rh1 Ke2 g1B Qab4 g2 Qe8 Bh2 Rg3 g1B Rg4 Bf2 Rg1 Bc7 Qd4 Ra1 Qf6 b1N Ba3 Rb7 Nc1 Rdb8 Qf4 Qf6 Qg5 Rh6 Qh4 Ba4 Kd3 Bc2+ Kc4 Nbc3 Ne2 Nb5 Nf8 Be3 Nh7 Qf2 Nf6 Na7 Ng4 Bef4 Bf5 Rd6 Be6 Bb6 Bc1 Kc7 c6 Nec5 Bb2 Ng6 Bf6 Ngf8 Be7 Bg3 Bd5 Nfe6 Bf8 Nd8 Be6 Ba5 Qa4 Kb6 c7 Bf4 Qa3 Kc6 c8Q+ Bc7 Qb4 Be3 Qhe7 Na4 Qg5 Bb6 Qh4 Nc5 Bd5+
q1Q2R2/4Bq1R/PQbB2p1/B1rbr3/np6/b1rN4/nk2p2K/q3n1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 fxe4 f5 d5 f6 dxc4 Qc2 g6 Qa4+ Nc6 Qd1 Nb8 g4 Be6 g5 Nc6 Bh3 Nb8 Bf5 Bd7 Nc3 Bc8 Nce2 Nd7 Nf4 gxf5 g6 Nb8 g7 Bd7 Ng6 hxg6 Ba3 Be6 Bc1 Bc8 Kf1 Kf7 Kg2 Ke6 h4 Kd5 a4 Kd4 h5 b5 a5 c5 a6 e5 f7 f4 h6 c3 h7 c4 d3 c2 Bd2 c1Q Rb1 e3 Qf3 b3 Qf2 c3 Qf1 e4 Rh3 f3+ Kh2 c2 Rh5 e2 Qg2 e1N Qg3 b2 Qh4 f2 Ra1 b1B Qh3 f1Q Qg4 Nf6 g8Q Nfd7 Qg2 e3 Qg5 e2 Rh3 Bb7 Ra5 Ba3 f8B Nc5 Bd6 Bd5 Rh5 Qb2 Nh3 c1R Nf2 Nc6 Qg1 Na4 B2b4 Qb8 Qc8 Re8 h8B+ Re5 Rh7 Qa1 Bf6 Bba2 Bbc5+ Kc3 d4 Nb4 Nd3 Bc6 Bfe7 Qf7 d5 Bb3 Ba7 Na2 Qb6 b4 Rb5 Kc2 Rc5+ Kb1 Rc4 Rc3 Rf4 Qg8 Rf8 Qf7 Bc5 Kc2 d6 Bbd5 d7 Qb7 d8B Rb8 Nc1 Qa8 Bcd6 Kb2 Nd3+ Kb3 Qa5 Rb5 Bg1 Rbc5 Qb5 Kc2 Ba5 Kb1 Qb6 Kc2 Nf4 Kb2 Nd3+
3r4/QpNr1nRr/1b1b1K1N/q3PB2/q1B5/1q1N4/p2p1NnQ/1k1b2n1 b - - 0 1 illegal: No proof kernel
1Q1n4/5RKb/Bn1bbN2/qP1Bp1nr/2p5/B3Bp2/Q1rnkN2/2n1r3 b - - 0 1 legal: proof: f4 d5 c4 dxc4 h4 g5 a4 gxh4 Nc3 b5 Nb1 bxa4 e4 Qd3 f5 Qd4 f6 exf6 e5 Qd8 b4 Na6 e6 Nb8 Ra3 Qd7 Re3 Qd8 Re5 fxe5 Kf2 Ke7 Ke3 Kd6 Ke4 h5 Kf5 Kd5 d4 c5 g4 a5 g5 h3 b5 h2 g6 a3 g7 c3 Bd3 c2 Qf1 a4 Ne2 c4 Qh3 h4 Be3 c1N Rf1 h1B Rf2 a2 Qg3 a1R Ng1 a3 Nf3 a2 Bf1 h3 Na3 h2 Be2 Bd6 Qg5 Ne7+ Kf6 Ke4 g8B Rh5 d5 Nbc6 Nc2 Qa5 Nce1 Nd8 Kg7 f5 Qg2 f4 Nd3 Rb1 Rf1 a1N Rf2 Nab3 Ng5+ Kf5 Bd1 Nd2 Bf3 Rb2 Rf1 Rc2 Ne4 Bd7 Rf2 Nc8 e7 Nb6 e8Q Be6 Nf6 Ra6 Bg4+ Kg5 Rf1 Kh4 Qe2 Kg3 Nf2 Be4 Bf7 h1N Qh8 Nb7 Qb8 Bh7 Bf5 Nd8 Bh3 Be7 d6 Ra8 d7 Bd6 Bg4 Kg2 Bf5 Ng3 Bg8 Nge4 Bf7 Nb7 d8B Ng5 Be7 Nd8 Be4+ Kg3 Bb7 Ra7 Ba6 Kg2 Qd3 Kf3 Qb3 Ke2 Qa2 Rd7 Rh1 f3 Bf8 Bc7 Ba3 Rd3 Rh4 Bd6 Rf4 Rd4 Rf5 Rg4 Rf4 Rg1 Bg8 Re1 Bf7 Bd7 Bd5 Be6 Ng8 Rc3 Rf7 Rc2 Nf6
bnk4K/2Q2brN/3BR2r/1P1Q2bq/2p1Qq2/1pq1n3/pB4bQ/2Rr4 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 h5 e5 h6 exf4 Rh2 a4 Rh3 gxh6 Rh4 h5 Rh1 h4 e3 b5 Bd3 Ba6 Bc2 Bb7 b4 Bc8 Bb3 Nh6 Nc3 axb3 a4 Ng8 a5 Qf6 Na4 bxa4 Qh5 Qd6 Qd1 Qd8 Ke2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 d4 c3 g4 h3 d5 c4 b5 f3 g5 f4 g6 h4 g7 c2 d6 h2 a6 a3 a7 a2 e4 h3 Ne2 f2 Ng3 f1Q Bb2 c1Q Qd5 f3 Nh5 Nf6 g8Q f2 Qg1 Qe8+ Kf5 Qe3 e5 Rh6 Re1 Ng4 e6+ Kd8 d7 Qc3 Qc6 Be7 Nf6 Ne3+ Kg5 Bb7 Qe4 Kc7 d8B+ Kc8 Bc7 Bd5 Bd6 Bd8 e7 Bf7 Qg3 Qh8 Rg1 h1R e8Q h2 Q8e7 Qe8 Re2 Qfc1 Qge5 f1B Nh7 Bg2 Rf1 Q1d2 Rc1 Rd1 Re1 h1B Qh2 Rg6+ Kh5 Rg7+ Kh6 Qf2 Q7e5 Qf4+ Ng5 Rg6+ Kh7 Rh6+ Kg7 Be7 Nh7 Bg5 Qd5 Bg8 Re2 Qh5 Kh8 Bf7 Qe4 Na6 Re1 Rb8 Re2 Rb7 a8Q+ Nb8 Qg7 Bd5 Qge5 Rg7 Qa5 Be6 Q5d5 Bf7 Qc2 Ng4 Re6 Bf1 Qdd2 Ba8 Qd5 Bg2 Qce4 Ne3 Qc7#
q4Rn1/nq2BKNb/3Q4/1p1R1PRn/4p3/Rbbr1Nrk/3Qp1b1/5q2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 h4 fxe4 a3 g5 Bc4 gxh4 Ba2 b3 Qd3 bxa2 Qf3 Ra4 Qd1 Ra8 Kd2 Kf7 c4 Kg6 g4 Kg5 a4 b5 f3 h5 a5 d5 c5 e5 a6 h3 f4+ Kh4 g5 h2 g6 d3 Kc3 d2 a7 d4+ Kb3 d3 g7 e3 c6 e2 c7 e4 Nc3 Qd7 Qf1 d1Q+ Kb2 d2 Na4 Bb4 Nc5 Nc6 Ne6 Bc3+ Ka3 Kg3 Bb2 h4 Nf3 h3 Qe1+ Kg2 Rf1 h1B f5 h2 Rg1+ Kh3 Rg5 Bg2 Bc1 Rb8 a8Q h1N Qa6 Na7 Qd6 Ng3 Bb2 Bb7 c8R Bd5 Rc5 Rd8 Bc1 Bc4 Rd5 Qb7 Bb2 Qb1 Bc1 d1B Qd2 Bdb3 Bb2 Bd4 Kb4 Bc3+ Kc5 Nh5 Ba3 Qf1 Bb4 Rh6 Ba3 Rg6 Bb4 Ne7 g8R Rd7 Rf8 Ng8 Ng7 Rd8 Re1 a1Q Rb1 Qaa6 Ra1 Qa8 Ra2 Q6b7 Ra3 Ne7 Re5 Bg8 Rd5 Bh7 Qb2 Be1 Qd2 Ng8 Kd4 Rd7 Ke5 Rd8 Qf6 Rd7 Ke6 Rd8 Be7 Rd7 Qa2 Bc3 Kf7 Rd6 Qe6 Rd7 Qd2 Rd8 Rc5 Rd4 Rd5 Rd3 Rg4 Rg5 Qd6 Rg6 Rf4 Rg3 Rg4 Qc7 Rg6 Qcb7 Rg5
Q2K2b1/4r3/B1R1pkb1/1q6/qbQ1Q2p/r2nQP1p/r1NBn2q/4R1r1 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Kd2 b5 Ke1 b4 Na3 bxa3 Kd2 Kf7 g4 d5 c4 b5 c5 h5 c6 a2 c7 e3+ Kd3 h3 a5 h4 g5 b4 a6 b3 a7 b2 f3 b1Q+ Qc2 e2 g6+ Kf6 g7 e1R Bd2 Nc6 Ba5 Qd6 Be2 Ne5+ Kd2 d3 Ke3 d4+ Kf4 d2 Qe4 d1B Bb4 d3 Qd5 d2 Qe4 Nd3+ Ke3 Bb3 Ba5 d1Q Bd2 Qh2 Kd4 Nh6 g8Q Bf5 c8Q Rh7 Qc1 Bg6 Qgc4 Nf5+ Kd5 Ng3 Kc6 Qdc2 Bf1 Ne2 Kd7 Qd1 Qa3 Qb2 Rb1 a1R Rc1 Ra2 Qac5 Qbe5 Qce3 Qg5 Qb4 Bbf7 Rc6+ e6 Qa4 Qb5 Qac4 Ndf4 Kc7 Bb4 Kd7 Qda4 Kc7 Re8 a8Q Nd3+ Kd7 Re7+ Kd8 Nd4 Ne2 Bg8 Rg1 Rhg7 Rh1 Rea1 Rg1 Ra3 Rh1 R1a2 Rg1 Nb3 Nd4 Nbc1 Nc2 Ne2 Bg2 B6h7 Re1 Bf5 Bf1 Rg1 Rd6 Bfh7 Rc6 Bg6 Qa6 Ng3 Rc5 Nb2 Qaa8 Qba6 Qcd5 Qb7 Bc4 Nd3 Ba6 Qbb5 Rc6 Ne2 Qdc4
1b1NB3/1Bk3q1/p5B1/3n2R1/Q1QNnB1p/qr5r/1n1prP2/1Kbb3r b - - 0 1 illegal: No possible last move
3r2R1/b1Pr3R/Nqb1p2r/1R6/ppn2Qq1/1N4R1/knKn2r1/1B2q2Q b - - 0 1 illegal: No possible last move
4kRn1/1pQ1b3/N2nr2b/8/pp3QQ1/qr2n2b/1qrPbKB1/1B1R2Q1 b - - 0 1 illegal: No proof kernel
4Q3/pK1PNqQ1/3B3k/1R1Nb1pB/1r3qnp/3b1n1r/1Bb1r1qB/2b5 b - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 h6 g5 hxg5 h3 Be7 h4 Bf8 b4 Nh6 h5 Ng8 Ra3 Bf5 Rah3 Bc8 Rh4 gxh4 Kf2 f5 Kf3 Kf7 e4 c5 d4 g5 d5 Kg7 d6 a3 e5 a2 e6 a1R b5 c3 b6 c4 b7 c2 e7 c3 e8Q Qf6 Bg2 Nc6 b8B Nh6 Qe4 Ra3 Nh3 Nd4+ Kf2 f3 Ke3 f2 Bf3 f1Q Nf4 Qg2 Ng6 f4+ Kd3 Bg4 Kc4 Bf5 d7 Bd6 Kd5 Re8 Qf1 Rb3 Ba3 c1Q Qc4 c2 Nc3 Qe7 Bg4 f3 Bc5 Qe3 Rb1 f2 Bd1 f1B Bc7 Ne6 Kc6 c1B Bb4 Rac8 Kb7 Nd4 Qe6 Qed2 Nd5 Rh3 Ba3 Qf8 Rb5 Bf4 Qe2 Bc2 Bb2 Qg8 Bd6 Rc4 Qe1 Rb4 Bf3 Ng4 h6+ Kh7 Q1e3 Ne5 Bh5 Ng4 Q3e4 Nf3 Bbe5 Be3 Bh2 Bd4 Qf7+ Bg7 Qee6 Re7 Qe8 Bfd3 Q6f7 Re6 Nge7 Re2 Qe6 Qf4 Q6g6+ Kh8 h7 Be5 Qe6 Kg7 Q6f7+ Kh6 h8B Bc3 Bd4 Qg6 Qfg8 Qgf7 B4e5 B3d2 Ba1 Bc3 Bb2 Be5 Qg7+
k1N5/bbn1Q1bQ/1nN1Pb2/RB3Qrr/3B2Q1/4n2p/np2p3/4Kbq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 a4 e5 d4 exd4 e5 d5 Ra3 dxc4 Re3 f5 Re4 fxe4 f4 Kd7 g4 Kc6 a5 h5 g5 b5 e6 Kb7 f5 c5 f6 b3 g6 e3 g7 d3 f7 c3 Ba3 c4 Be2 b2 Qc2 b4 Nd2 b1N Rh3 b3 Bb2 Nf6 g8Q Nbd7 Qc1 c2 Bg4 c3 Rh1 h3 Ne4 h2 Ba1 d2+ Ke2 d1N Bf3 h4 Kf1 e2+ Ke1 h3 Qd2 c1B Qh7 c2 Qg6 Qb6 Qgh6 Ne3 Nf2+ Nfd5 Qd4 Nc3 Qg4 Bb2 Qh7 c1B Ne4 Bg7 f8Q Na2 Qff5 Bbf6 Bd4 b2 a6+ Kb8 Nd6 Nc7 Bg2 Bb7 Nc8 Qc5 Nf3 Nb6 Rg1 h1B Ne5 Rg8 Bd5 Bg2 Bc4 Bf1 Bb5 Ra7 Nc6+ Ka8 Rg2 Rh8 Qg8 Rh5 Qgh7 Qd5 Rg1 Qh1 Rg3 Qg1 Rf3 Nec4 Ra3 Bch6 Ra5 Be3 Be5 Bc5 Bd4 Ne3 Nd8 Be4 Nc6 Rb7 a7 Rb8 Nb4 Bb7 Nc6 Rg5 N8e7 Re8 Nc8 Rh8 Qfe4 Ncd5 Ne5 Na4 Nf7 Bc6 Qg8 Rhh5 Qgh7 Kb7 Qe5 Bd6 Qee4 Bb8 Qef5 Nab6 Nd8+ Kc7 a8Q Bb7 Qa6 Ba7 Ra3 Kb8 Nc6+ Ka8 Qa5 Bd8 Qb4 Bdf6 Qe7 Nc7 Ra5
5NrQ/br1r2B1/k1K1p2b/1R1p1B1b/P1R3p1/1nR1nbQ1/3b1Rr1/3q4 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 Kd2 g5 f4 b5 c4 d3 Ke3 g3 Kd4 g2 Kd5 d2 h4 e3 h5 a2 h6 e6+ Ke5 e2 h7 e1B c5 b4 f5 b3 f6 b2 c6 b1R c7 Ne7 Kd6 Nbc6 Bd3 Bh6 Kc5 Nf5 Bb5 Ncd4 Qb3 d1B Kb6 Bb7 Ne2 g1B Be3 Rg8 h8Q Bf3 Bc6 Ra7 Nf4 Bd2 Be4 d6 f7+ Kd7 f8R Kc8 Bf2 Ne3 Rh4 Bh5 Bf5 g4 Rh3 Bf3 Ng6 Rb2 Rc1 a1R Rc5 Rd1 Rb5 Rc2 Qd3 Nb3 Bg3 Rb2 Be5 Bf2 Qc3 Rg1 Bg7 Rg2 Rf7 Rb1 Nf8 Rd1 Rd5 Bg1 Kb5 Kb7 Rf6 Rb1 c8R Bf2 Rc4 Rd1 Kb4 Ka6 Rb5 Rd7 Rg3 Rb1 Rf7 d5 Rh3 Qh4 Rg3 Qh1 Rf6 Nd4+ Kc5 Nb3+ Kc6 Qd1 Rh3 Nf1 Qe5 Ba7 Qg3 Ne3 Bc2 Be4 Rf2 Bf3 Bf5 Na1 Rbc5 Rbb7 Rb5 Nb3 Rh1 Qc2 Rc1 Qd1 R1c3
bb2rRr1/n6k/Rr2Nnp1/K1R1pb1b/PB2p3/2B1r3/1Q1n3R/1qQ5 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 fxe4 f5 c5 f6 cxd4 Bf4 g6 Bd2 Qb6 Bc1 Qd8 g4 Nh6 g5 Nf7 Bh3 Nh6 Bf5 Ng8 Na3 Qb6 Nc4 Qa5 Ne5 gxf5 g6 Qc7 g7 Qd8 Ng6 hxg6 Kd2 Kf7 h4 d5 a4 b5 c4 f4 c5 f3 c6 d3 c7 b3 Kc3 b4+ Kd2 b2 h5 b1N+ Ke1 b3 h6 b2 h7 d2+ Kf2 Bf5 Ke3 f2 Kd4 f1R Kc5 Rf3 Kb5 Re3 c8R Nc6 Qf1 d1B Rh2 Bf3 Rd2 Na7+ Kb4 Qb6+ Qb5 e6+ Rc5 Re8 Nh3 Bd6 Nf4 Bb8 Rh2 Nd2 Rb1 Qb7 Ka5 Bh5 Ra1 b1R Qb2 e5 Ne6 d4 Rc6 d3 Ra6 Qb3 Ra3 Qd1 Rc3 Qh1 Rc5 Qd1 Qc2 Rb6 Bb2 Qb1 Qc3 Nf1 Qb3 d2 Bc3 d1B Qb2 Nd2 Qc1 Bb3 Qb2 Nh6 g8R Bd5 Qc1 Ba8 Qb2 Re7 Rgc8 Rf8 h8Q Ng4 Qh6 Kg8 Qg5 Rg7 f7+ Kh7 Re8 Rfg8 f8B Nf6 Be7 Rf7 Rf8 Rfg7 Bd6 Re7 Qg1 Re8 Qgc1 Re1 Rc4 Re2 Bdb4 Re3 Rc5
2N2Qn1/b1Q3p1/n3B3/bBrNn2k/2rb1rQ1/pb1q1Rp1/3Q3P/4K2n b - - 0 1 illegal: No possible last move
1KR2B2/2P2rp1/1B3n2/2Q1r1k1/n2rq1N1/Qqbb2N1/3pqpBq/2B3r1 b - - 0 1 legal: proof: e4 b5 a4 bxa4 d4 c5 g4 cxd4 b4 h5 f4 f5 Ra3 fxe4 Rc3 hxg4 Rf3 exf3 Kf2 Kf7 Kg3 Kf6 c4 e5 h4 d5 h5 a5 c5 f2 h6 a3 b5 e4 c6 e3 c7 e2 h7 e1Q b6 a4 b7 d3 f5 a2 Kf4 a1R Bh3 d2 Nc3 g3 Bf1 a3 Bc4 d4 Qc2 d1Q Nh3 g2 Bd3 g1Q Ng5 a2 Rh5 Qde7 Be4 d3 Nf3 d2 Ne5 Ra4 Ne2 Rd4 Qc5 Qb3 Ng3 Na6 b8B Qh2 Ba7 Qe2 Bb6 Be6 Rh3 Bc4 Rh4 Bd3 Ng4+ Kf7 Qa3 Nc5 f6 Na4 Kf5 Rb1 Rh6 a1R Rh5 Qeb4 Ke5 Q4c4 Rf5 Kg6 f7 Bc5 f8B Bb4 Rf7+ Kg5 Rd7 Qc6 Rd8 Qcc4 Rc8 Bc3 Qc5 Nf6 Qa3 Rg8 h8Q Rb2 Qh7 Rh8 Qg8 Rh4 Qd5 Rc2 Qdc5 Rh6 Bb2 Rg1 Bc1 Rh4 Ne3 Rf4 Bg2 Ne4 Ng4 Rf7 Bf3 Nf6+ Be4 Rd5+ Ke6 Re5+ Kd6 Qcb4 Kc6 Qd4 Bd5 Qde4 Kb7 Ra2 Kb8 Ra1 Bb2 Rac1 Bb7 Rce1 Bc1 Rd5 Qe7 Rd4 Qec5+ Qe5 Qa1 Qf3 Qaa3 Qed5 Qc4 Re5 Qc6 Qe2 Qcc5 Qdf3 Bd5 Qf5 Bf3 Qfe4 Bg2
1nBK3b/B3r3/2p5/p1PR1bqr/2pQ4/Brn1NQ1n/p1B1k3/n2N1n2 b - - 0 1 legal: proof: f4 d5 e4 g5 h4 gxh4 c4 b5 a4 bxa4 b4 e6 f5 exf5 c5 fxe4 Ra2 e3 Rc2 Bb7 Rc3 Bc8 Rc4 dxc4 Ke2 Kd7 Kf3 Ke6 Ke4 f5+ Kf4 Kd5 d4 h5 g4 a5 b5 a3 b6 e2 g5 e1N b7 c6 g6 h3 g7 h2 Nh3 a2 Na3 h4 Qd3 Ra7 Be2 Rh5 Bb2 Ne7 Nf2 h3 Rf1 h1R Bd1 h2 g8B+ Be6 Bc2 Bg7 Bh7 Bh8 Nd1 Rg1 Rf2 h1N Rd2 Nf2 Bg6 Rg3 Qf3+ Ne4 Be8 Rgh3 Bd7 Ng6+ Ke3 Rg3 Bc8 Nf4 Bc1 Nh3 Rd3 Na6 b8B Re7 Ba7 Nb8 Rd2 Nd3 Bb2 Nc1 Rd3 Nb3 Rd2 Ng5 Kf4 Na1 Rd3 Bd7 Bc1 Ke6 Rd2 Nc3 d5+ Kf6 d6 Be6 d7 Nh3+ Ke3 f4+ Kd4 Bf5 Bb2 Qg8 d8Q Qg4 Qd6+ Kg5+ Qe5 Kh4 Qf6+ Qg5 Qg7 Rb7 Ke5 Rc7 Kd6 Re7 Qh1 Kg4 Rd5 f3 Qd4+ Re4 Kc7 f2 Qf1 Kf3 Qg2+ Ke2 Qf3+ Ke1 Bc1 Re7+ Kd8 f1N Nb1 Rg4 Nd2 Rge4 Ba3 Re3 Qg3+ Ke2 Qgf4 Ng3 Nf1 Rd3 Nfe3 Nf1 Ng2 Nb1 Nge3 Rb3 Qfe4 Nc3 Qf3+
5bB1/B3n1Q1/k4Br1/rpR2N2/4bQ2/3pK1b1/3PpNpb/2nq1Bnq b - - 0 1 legal: proof: f4 f5 g4 g5 a4 gxf4 e4 fxe4 b4 h5 g5 a5 Ra3 axb4 Rg3 Kf7 c3 bxc3 Rg2 Ke8 Rg4 hxg4 Ke2 d5 h4 Kd7 a5 Kc6 g6 Kb5 g7 c5 h5 e5 a6 g3 h6 c4 a7 f3+ Ke3 f2 h7 c2 Rh4 d4+ Ke2 d3+ Ke3 g2 Qf3 c3 Qf4 Ne7 g8B Nd7 Qg4 Ka6 Rh2 b5 Ba2 Rg8 h8B Rg6 Qd1 Bb7 Ba3 c1B Qb3 c2 Ne2 Bb2 Rh6 c1N Ng3 Bc3 Be2 f1Q Bf3 Qd1 Rh5 Ba5 Bf6 Bc7 Nf5 Qe8 Rh4 Qf7 Rh1 Qh7 Qc3 Bb8 Rf1 Qh1 Bc5 Bc6 Be2 Bc7 Kf2 Bb7 Bd5 e3+ Kf3 Bb8 Qb2 Bd6 Nc3 Bb8 Ne4 Bc6 Ned6 e4+ Kf4 Bb7 Bg8 Ne5 Rf3 Bd5 Bf1 e2 Ke3 e1B Rh3 Bb7 Rh5 Nf3 Qe5 Bc7 Qf4 Ng1 Bb6 Bg3 Rg5 Rb8 Bbd4 Bd5 Bc5 Rb7 a8Q+ Ra7 Qe8 Bb8 Qf7 Ba8 Qg7 Bb7 Kd4 e3 Ne4 e2 Nf2 Be4 Ke3 Ra8 Ba7 Bh2 Qg4 Bbg3 Qf4 Kb7 Bad4 Ra5 Ba7 Ka6 Nd4 Na2 Rc5 Nc1 Nf5
4q2k/QNn1Q2b/1Np2Q2/1n2p3/4Rqrb/rQ1K3p/qp1RnqP1/4B3 b - - 0 1 legal: proof: c4 d5 b4 dxc4 e4 f5 b5 fxe4 b6 axb6 Ke2 b5 Ke1 b4 h4 g5 a3 c3 Bc4 gxh4 Ba2 b3 Qc2 bxa2 Qb3 Nf6 Qd1 Ng8 Ke2 Kf7 d4 Kg7 f4 b5 f5 h5 a4 e5 d5 c6 a5 c2 d6 b4 a6 e3 a7 h3 d7 b3 Qf1 h4 Qe1 h2 Qd2 b2 Nh3 Na6 Ng1 h3 Qd3 Be7 Nc3 Rh4 f6+ Kh8 f7 Rg4 f8Q Bh4 Na4 Nc7 Nb6 Nb5 Qe7 Qe8 d8Q Nf6 Nf3 Nd5 Nd2 Bf5 Rd1 h1Q Qb3 Bh7 Ndc4 Ndc7 Nd6 Qh2 Bd2 Qf4 Rab1 a1Q Nb7 Qa6 Be1 Qa2 Rd2 c1N+ Kd1 Nd3 Kc2 e2 Qdd6 Nc1+ Qg6 Rd8 a8Q Rd3 Qa7 Rdg3 Qbf7 Ra3 Qb3 Nd3 Rbd1 Nc1 Rd4 Qb8 Re4 Qe8 Bc3 e1Q Rd2 Ne2 Kd3 Qef2 Qgf6+ Rg7 Rd1 Qg4 Be1 Qgf4 Qh6 Rg5 Rd2 Rg4 Qhf6+
2B4R/1Rk2pq1/1p1q4/1Q2P1r1/1n3Rnr/1ppQnb2/B2R2p1/4bnKN b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 c5 axb4 c6 g5 Qc2 g4 Kd1 g3 Ke1 dxc6 Qb3 c5 Qd1 c4 Bb2 h5 Bd4 Ke7 Bf2 Qe8 Qa4 gxf2+ Kd1 Bg7 g4 Bf8 Kc1 Qd8 Qd1 Ke8 g5 Nf6 Na3 Qd3 Nc2 Qd8 Ne3 Ng8 Ng4 hxg4 h4 Kd7 e4 c5 d4 b6 Kd2 f3 Ke3 g3 a4 g2 d5 c3 a5 c4 h5 c2 h6 c1N d6 c3 g6 Ra6 h7 Ne2 e5 Nf6 g7 Ne4 g8R N2g3 Ne2 Nf6 Rh4 Nc6 Qb1 Ra8 a6 Bb7 a7 Bh6+ Rf4 Kc8 d7+ Kc7 Ra2 Ng4+ Kd3 Qf6 Rb8 Qg7 Rd2 Nf5 Ng3 Nfe3 Nh1 Rg8 Be2 f1Q h8R f2 Ke4 Bg5 Kf3 Bh4 Bc4 Qd3 Ba2 Qd6 Qd3 f1N Qb5 b3 Ke2 Bg5 Kf3 Nb4+ Ke2 Ngh2 Kf2 Nhg4+ Kg1 Bf6 Qa6 Bf3 d8Q+ Kc6 Qd3 Bh4 Qe8+ Kc7 Qeb5 Bg3 Re8 Rb8 a8B Be1 Bb7 Ra8 Bc8 Ra4 Qc2 Qgf8 Qcd3 Rg5 Bf5 Qfh6 Rb8 Qg7 Bc8 Nf2 Rf8 Nbc2 Rf5 Rh4 Rf4 Nfg4 Rh8 Nb4 Rb7+
R4n1b/B3q1bR/2Kn1bNq/1rNP1R2/2r1bq2/3rR3/3r2B1/1Rq3k1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 b5 d5 Qb3 dxc4 Qb4 axb4 a5 b6 Ba3 bxa5 Bc1 a4 Bb2 b3 Bc1 b2 Na3 b1N Nxb1 a3 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 f5+ Ke5 c5 e4 h5 d4 h3 d5 Kh4 b6 Kg3 b7 Kf2 g5 a2 g6 c3 g7 c2 Ba6 f3 Bb5 h4 Bc4 h2 Ba6 h3 Nd2 f4 Rb1 a1B+ Rb2 c4 Kd4 c3 e5 Nf6 g8R Rh4 e6 Ne8 e7 Bf5 Kc5 Nd7+ Kb5 Nd6+ Kc6 Rb8 Rg3 Bg7 e8R Nf8 Re4 Qe7 Ne2 Bh8 Rd1 h1R Re5 h2 Re3 Rf1 Rb3 h1Q Ba3 c1B Rg1 c2 Rbc3 Bcb2 Rb1 c1Q Bc5 Rd1 Rc4 Bbg7 Rg4 Baf6 Nb3 Rd2 Rec3+ Kf1 Rg3 f2 Rg5 f3 Nf4 Bh7 Rh5 Kg1 Ba7 Bg6 Nc5 f1Q Rh6 f2 Rh7 Rg4 Re4 Qh6 Re5 Bc2 Bd3 Rh4 Ng6 Rc4 Be2 Be4 Rh3 Rd3 Rf5 Qcf4 Bh5 Q1c1 Bf3 f1R Bg2 Rf2 Rf3 Rfd2 Re3 Rd8 b8R Rd7 Bf3 Rb7 Bg2 Rb5 Ra8
r1qNB2n/kr4P1/3Rq3/4BB2/r4Bn1/n2bp1K1/rR2q3/q2B1N1q b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 Qd3 gxh4 Bh6 a5 Bxf8 axb4 Qa3 bxa3 f4 h5 Kf2 e5 c4 b5 g4 d5 g5 Kd7 g6 Kc7 f5 Kb6 g7 b4 c5+ Ka7 c6 a2 c7 e3+ Kg2 d3 f6 h3+ Kh2 h4 f7 e4 a5 d2 a6 d1Q Be2 d4 Nf3 d3 Rf1 b3 Nfd2 b2 Rf4 Nc6 Bb4 Nge7 f8B Ne5 Bg4 e2 Nb3 e1Q Be2 d2 Bf3 Bf5 c8B N7g6 Na3 b1N Bg4 Qde2+ Rf2 d1Q Nc2 Na3 Bfd6 e3 Bd2 Bd3 Bcf5 Qc8 Ncd4 Q1f1 Rc1 a1R Rc6 Ra2 Bc3 Qa1 Nd2 Qe6 Rb6 Qfc1 Nf1 Rhb8 Bc7 Qcc2 Rd6 Nh8 Bh5 Rbb2 Be8 Rb7 Bb2 Qc6 Bc3 Qc8 Ne6 Qb6 Nd8 Ng4+ Kg1 h2+ Kg2 h1R Be5 h3+ Kg3 h2 Bf4 Qed1 Rb2 Qc6 Rg6 Qd5 Bce5 Qe2 Rc6 Qde6 Rd6 Kb8 Nd2 Rc1 Nf1 h1Q a7+ Kc7 Ba4 Rc4 Bd1 Rcb4 Rd5+ Kb6 Rd4 Rab8 a8B Ka7 Rd5 Ra4 Rd6 Rf7 Bb7 Ra8 Bc6 Rb7 Be8
q1N3n1/1k1K2N1/2RB1r2/rpR3bP/r1NB3r/1N1Np3/r2p1q2/4rn2 b - - 0 1 legal: proof: d4 a5 b4 axb4 e4 c5 a4 cxd4 a5 f5 a6 fxe4 Bf4 b6 Bd2 Kf7 Bc1 Ke8 f4 g5 g4 h6 f5 Bb7 axb7 Ra5 Be2 Ra8 Qd2 h5 Qf4 gxf4 g5 Nh6 Bd1 Ng8 Bg4 hxg4 Kf2 d5 h4 Kd7 c4 Kc6 g6 e5 f6 d3 f7 f3 Ke3 d4+ Kd2 e3+ Kd1 e4 c5 b3 g7 b5 Bb2 d2 Ra4 g3 Ne2 g2 Na3 f2 Nf4 f1R+ Ke2 d1R Rc4 g1Q Nd3 Na6 b8B Rf6 Bd6 Be7 f8N Nc7 Ne6 Kb7 h5 Ra4 Rc3 Ra1 Nc4 R1a2 Rh4 Qa8 c6+ Kb8 Nec5 Qf2+ Kd1 e2+ Kd2 Kc8 Rh2 Nd5 c7 Ra5 Rh1 Rh7 Rhc1 Ne3 R1c2 R2a4 Ba1 b2 Nb3 Kb7 c8N b1R Bb2 Nh6 g8N Rh1 Ba1 Bd8 Nge7 Ng8 Nf5 Rh4 Ng7 Nf1+ Kc1 e1R+ Kb2 e3 Nce5 Rff4 Nb4 d3 Nf5 d2 Nbd3 Rc7 Ng7 Nf6 Rc4 Rf5 Kc3 Ra3 Kb4 Rc6 Bd4 Ng8 Rc1 Bg5 R4c2 Rca6 Kc5 Ra2 Kd5 Rf7 Ke6 R5a4 Rc6 R6a5 R1c5 Rf5 Nc4 Rf6+ Kd7
2b3B1/1n2N1K1/4qP2/k2rRbb1/2Nq2Nb/N3N1qB/brR2qb1/1n5b b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Qg4 e4 Qf3 Nf6 Qd1 Ng8 g4 h6 Bf4 Ra7 Qd2 Ra4 Qg2 gxf4 g5 Ra3 g6 Ra8 Qg5 hxg5 Ke2 b5 h4 e5 c4 d5 a4 Kd7 h5 Kc7 g7 Kb6 c5+ Ka5 c6 g4 h6 d3+ Kf2 d2 h7 d1B f6 b3 c7 g3+ Kg2 e3 Bd3 f3+ Kf1 e2+ Ke1 e4 Kd2 e1B+ Ke3 b4 Kf4 b2 Ke5 e3 Nc3 b1B Ra3 b3 Ra2 g2 Bb5 f2 Rh4 f1Q Rh3 e2 Re3 d4 Bc4 d3 Rh3 d2 Rd3 b2 Rd6 Qf2 Re6 Nd7+ Kd5 Rb8 Re5 Bf5 Nh3 g1Q Nb5 b1B Rc2 Ba2 Nf4 Qgg3 Na3 Rb2 Ng2 Bb4 Ne3 Ne7+ Kd4+ Nd5 g8N Bd6 Nh6 Nc5 Ng4 Nc3 Bd5 Rg8 h8N Nb1 Ng6 Nb7 Ne7 Rg5 Bc4+ Kb6 Kd5 Ka5 Rc3 Bdc2 Bb3 Bcd3 Rc2 d1B Bc4 Bd2 Bb3 e1Q Bc4 Kb4 a5 Bf1 a6 Ka5 a7 Bde2 a8N Bg2+ Re4 Bh1 Nb6 Bef3 Bb3 Bfg2 Bc4 Bcd7 c8B Rh5 Bb3 Bf4 Bc4 Bg5 Bb3 Bh4 Nbc4+ Ka6 Nf1 Bdg5 Nfe3 Bb5+ Bd7 Qb6 Be6 Bd7 Bg8 Qee2 Ba4 Bc8 Bd7 Bh7 Bf5 Qee1 Bd7 Qd4+ Ke6 Bf5+ Kf7 Qee2 Re5 Qee1 Nf1 Qee4 Kg7 Qc6 Nfe3 Qe6 Nd2 Rh8 Bh7 Rd8 Bg8 Kb6 Bb5 Rd5 Bf1 Bge4 Bh3 Beg2 Ndc4+ Ka6 Nd6 Ka5 Ndc4+
NNB1nq1n/B3r1nr/1BR1Pp1B/4B1r1/1qn4K/1k1b2n1/3b2rR/5q2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 f5 Qb3 d5 Qc2 dxc4 f4 Nc6 a4 Rh6 Qe4 fxe4 f5 Nb8 f6 Rh4 f7+ Kd7 Ra3 Rh3 Rf3 Rh8 Rf6 exf6 Kf2 Ke6 Kg3 Kd5 h4 b5 d4 g5 e6 c5 h5 e3 a5 c3 h6 b3 h7 b2 a6 e2 a7 Kc4 d5 c2 d6 b4 d7 b3 Nh3 Bh6 f8B Na6 Nf4 Ne7 Ng2 Nf5+ Kf2 g3+ Kf3 g4+ Ke4 Ng7 Bd2 c1Q Bg5 Nc7 Ne1 g2 Be7 g1R Bg2 g3 Kf3 Nce8 Kg4 Ba6 Be4 g2 Nd3 e1N Bd6 Nf3 Bf5 Nh4 Ne1 Ng6 Nc3 b1N Kg3 b2 Be5 Na3 Nd5 b1Q Nc7 Qb4 Nd3 Qf1 Be3 Kb3 Rh2 c4 Be4 c3 Bb7 c2 Bc8 c1N Bf2 Rb8 a8R Bd2 Ba7 Ne2+ Kh3 Qde7 d8B Rb7 Rb8 Qf8 Na8 Rf7 Rb6 Nc4 Rc6 Re7 Bdb6 Ng3 Kg4 Rg8 h8B Rh1 Kh3 g1R+ Kg4 Rg2 Nc5+ Ka3 Nd7 Kb3 Nb8 Bb5 Rh5 Rh3 Rf5 Rh7 Rh5 Ncd6+ Kh3 Bd3 Rh6 Nc4 Kg4 N7f5 Bg7 Nh8 Rh4 Ka4 Kh3 Kb3 Bh6 Rg5 Rh5 Nfg7 Rh4 Rh5 Kg4 Rf5 Rh2 Rg5+ Kh4
3R2n1/2RR1K1b/b1Nr2pP/1Bb2bq1/1n1b3b/bR1n4/1kn1Nr2/4BR2 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Qd3 b5 Qf3 b4 Qa3 bxa3 Kd2 Kf7 c4 Kf6 f4 d5 h4 b5 f5 Ke5 h5 d3 Ke3 d4+ Kd2 b4 c5 g3 f6 b3 h6 e3+ Kd1 g2 a5 a2 f7 e2+ Kd2 e1B+ Kd1 d2 Ke2 d1B+ Kd3 b2 Kc4 d3 a6 d2 a7 Bc2 c6 d1N c7 Nc6 Bd3 Nf2 Be4 Ba6+ Kc5 Nd3+ Kb6 Kd4 Bg5 e5 Nd2 Kc3 Rd1 b1B Ne2+ Kb2 Nf3 g1B+ Nfd4 a1B Bd2 Ncb4 Bc6 e4 Bb5 e3 Rh3 Qg5 c8R Bh4 Rc7 Rd8 a8R Rd6+ Nc6 Be7 f8R Rh7 Nd4 e2 Rad8 e1N Rf1 Bf8 Rcc8 Rh8 Kc7 Be7 Ne2 Bc5 Rd7 Nc1 Rf4 Re6 Be3 Rh7 Re8 Kb3 R1d6 Bef6 Rf1 Bfb2 Nb8 Ba3 Rc6 Bad4 Bf2+ Kb2 Rc3 Rd6 Bg3 Bg6 Bf2 Bbd3 Bg3 Nec2 Be1 Bde4 Ref8 Ncd3 Rc8 Nf6 Kd8 Rh8+ Ke7 Bh7 Rf8 g6 Rcc7 Rg8 Rfc8 Rf8 Nc6 Rf7+ Kd8 Ng8+ Ke8 Rf2 Rcd8 Bf5 Kf8 Qh5 Kf7 Qg5 Rb3+
3k3r/1R5q/qP2Nbq1/r1nN1qB1/1n1B4/2Rb2qR/2RKppb1/1Rn5 b - - 0 1 legal: proof: f4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 e5 h6 gxh6 Rh2 h5 Rh1 h4 e4 Qa5+ Qd2 Bb4 f5 Qa6 Bc4 Qf6 Be6 Bf8 Qf4 exf4 e5 Ke7 Ba2 Qb6 e6 Qd8 Bc4 Kf6 e7 Kg7 Be6 fxe6 Be3 Kf6 Bc1 Kf7 e8R h5 g4 d5 b4 a5 c4 f3 g5 a3 b5 h3 f6 a2 c5 e5 c6 h4 c7 f2+ Ke2 a4 b6 h2 Bf4 d3+ Kd2 h3 Bg3 a3 Kc1 e4 Nf3 d4 Re1 h1Q Nh4 e3 Re4 e2 Kd2 h2 Nf3 Qd6 Nc3 Ra5 Nb5 Be7 g6+ Ke8 g7 Na6 Bh4 Nb4 Bg3 Ba6 Rad1 a1Q Rc1 a2 Bh4 Qg3 c8R+ Kd7 f7 Bf6 R8c6 Kd8 f8B Qhg2 Re7 h1B Na3 Q2h2 Re3 Bg2 Bg5 Qh7 Bf4 Qb1 Bg5 a1N R1c2 Qa2 Kc1 Qc4 Rc7 d2+ Kb1 d3 Nd4 Nb3 Bc5 Nc1 Nab5 d1Q Nc3 d2 Rb7 Qe6 Rf3 Bd3 Nd5 Qef5 Kb2 Qhg6 Kc3 Qh7 Rh1 Qg1 Rh3 d1Q Re3 Nh6 Rf3 Ng4 Re3 Qdf1 Kd2 Ne5 Rf3 Nd7 Ne6+ Ke8 Bd4 Nc5 Nf8 Kd8 g8R Bc4 Rfc3 Bd3 Bge3 Qgg6 Bg5 Qh2 Rgg7 Qb8 Rg8 Qa8 Rgg7 Qa6 Rgc7 Qg1 Ne6+ Ke8 Rb3 Qh2 Rb1 Qg3 Nf8 Kd8 Rc6 Nd7 R6c3 Nc5 Ne6+
2B4R/B1pKp1N1/4r2k/BBP1q1n1/R3rn1n/1b1BbqN1/3rb2b/6b1 b - - 0 1 legal: proof: b4 d5 a4 a5 e4 dxe4 g4 axb4 f4 g5 Qf3 gxf4 g5 h5 Ra3 bxa3 Qg4 hxg4 Kf2 b5 c4 f5 d4 Kf7 h4 Kg7 d5 f3 Ke3 g3 Kf4 a2 Ke5 a1B+ Nc3 e3 h5 f2 a5 b4 a6 b3 d6 g2 g6 e2 c5 e1R+ Be3 b2 a7 b1N d7 f4 Ke6 f3 Nge2 g1B Bg5 Rh6 Bh4 Nd2 Bg5 Na6 Nb5 Be5 Nbd4 Nf6 Rh4 Nfe4 Ng3 Nb4 Bd3 f1Q Rg4 Rb8 a8B f2 Bc6 Nf3 Bcb5 Nh4 Bd2 Nd5 Ba5 Ra8 Bb6 Ra2 Ba7 Rd2 Rf4 Qg2 Rg4 f1B Rf4 Be2 Ndf5+ Kh8 Ng7 Qf3 Rg4 Ba6 Rf4 Qb8 d8R Ng5+ Kd7 Bd1 Bc2 Re4 Bcd3 Bb3 Re8 Qb6 Rc8 Qf6 Rd8 Re1 Ra4 Re4 Rb8 Nf4 Re8 Rh7 h6 Bd6 N7f5 Qe5 g7+ Kg8 Rd8 Kf7 g8B+ Kg6 Be6 Rf7 h7 Bh6 h8B Rf6 Ng7 Kh7 Bd5 Re6 Bb7 Kg6 Bc8 Kh7 Bc6 Bac4 Bb5 Kg6 Bc2 Be2 Bcd3 Qf5 Ne8 Nfg2 Bbc4 Nf7 Nh5 Bhe3 Bc3 Bdh2 Bb5 Qe5 Neg7 Ng5 Ng3 Kh6 Ba5 Nf4 Rh8+
r1bn1n2/1pNp2bN/3Rr1b1/N4r2/2P5/1KB1qb1B/1NRq2r1/k2N2r1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Qd3 h4 Bc1 g2 Qg3 hxg3 Kd2 Ke7 a4 Ke6 c4 Ke5 Kc2 f5 h4 g5 e4 d3+ Kb2 Kd4 h5 b3 a5 d2 h6 d1B h7 g4 e5 f4 e6 f3 a6 f2 a7 Ne7 Nd2 Nbc6 Ne4 Bf3 Bd2 Ng6 e7 Qa5 e8N Nd8 Ra2 Bg7 Rh6 Nf8 Nh3 g1R Nc5 g2 Na4 g3 Nf6 Rg8 Ka3 b2 h8N b1B Kb3 Bg6 Nf7 Qg5 Be1 Qd2 Nh7 Rh1 Rb2 g1Q Rc2 g2 Ne5 Rh2 Nb2 Rh1 Be2 f1R Nf2 Rh5 Bd3 Rf5 Nfd1 Rf6 Bf5 Re6 Bh3 Qge3+ Nc3 g1R Nc6+ Kc5 Na5 Rg2 Ka2 Kb4 Ncd1 Rff2 Rh4 Rg1 Rd4 Rfg2 Rd6 Rh8 Ng5 Rh5 Nh7 Rf5 Ka1 Rb8 a8N Ka3 Nc7 Ra8 Kb1 Qdd3 Bc3 Qdd4 Rd2 Qd5 Kc2 Ka2 Rf2 Ka1 Kb3 Qdd3 Rc2 Qde2 Ne8 Q2d2 Nc7
3K1Br1/1B3R1R/Np1kb2b/1Rq2N2/P1q5/b2r4/1N1b3q/n2r1Nrr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 c4 b6 a4 Bd6 c5 Na6 c6 Bf8 Qd3 Nc5 Qa3 Nb7 cxb7 bxa3 Kd2 Ke7 Kd3 d5 b8R f5 h4 g5 e4 f3 e5 f2 e6 f4 h5 a2 h6 f3 h7 g3 Na3 g4 Be3 g2 Nb1 g3 Ne2 g1B Bc1 g2 Nbc3 Kd6 e7 Nf6 Rb1 a1B Rh3 Ng4 Rb3 Be6 Be3 Qc7 Nb1 Bc3 Rb2 Bh6 Rb5 Qc5 Rb7 Rag8 Na3 Bd2 Ng3 Bh2 Rc7 g1Q Bg2 f1R Rh5 Rb1 Nf1 f2 Bg5 Ne3 e8N+ Ke5 Rg7 Nc2 Rf7 Na1 Nc7 Kd6 Na6 Be5 Bf6 Qh2 Bg7 Bf6 Be4 Be7 Bf8 Rg1 Rh3 Rhg8 h8N Re1 Ng6 Rd1 Ke2 d3+ Kf3 d4 Bb7 Rb1 Ke4 Rc1 Ng3 f1Q Rh4 Rb1 Rh5 Qfc1 Nf1 Q1c4 Rh4 Be1 Rh5 d2 Rh3 d1R Rh4 Bd5+ Kf5 d3 Rh5 d2 Rh3 Bg5 Rhh7 Bf4 Bg7 Bf8 Kf6 Be6 Ne7 Rb3 Bh6 Rd3 Bg7 Rc1 Bh6 d1R Bg7 Qca2 Bh6 Bed2 Nc4+ Kd7 Nb2 Qac4 Bg7 Kd6 Bh8 B8h6 Bg7 Bb4 Bf8 Ba3 Ng3 Rh1 Nc6+ Kd5 Nf5 Rde1 Ng3 Reg1 Nf1 Be3 Rb4 Qa5 Ke7 Rcd1 Kd8 Bd2 Ne7+ Kd6 Rb3 Qah5 Rb5 Qhc5 Nf5+
3rk2b/2p1RRrB/1nKPr2R/3NRr2/r2q4/2p4b/nB3b2/2nB1N2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 b5 d5 Qb3 dxc4 Qb4 axb4 a5 b6 Ba3 bxa5 Bc1 a4 Bb2 b3 Bc1 b2 Na3 b1N Nxb1 a3 Kf2 Ke7 Kf3 h5 Ke4 f5+ Ke5 h3 d4 a2 e4 f3 g4 h2 b6 f4 g5 h4 g6 f2 d5 f3 b7 h3 g7 Ra4 Nc3 Nf6 g8R Nc6+ Kf4 Nb4 Ke5 Nd7+ Kd4 Bh6 e5 Be3+ Ke4 Bd4 Be2 f1N b8R f2 e6 Nb6 Rb1 a1B Rg5 Na2 Nf3 Re8 Nd2 Ng3+ Kf3 Kf8 e7+ Kf7 Bd3 Ne2 Bh7 f1R+ Ke4 Rf2 Rf1 h1R d6 h2 Rbb5 Rg1 Rg6 h1R Rh6 Bh3 Rc5 Rh8 e8B+ Kf8 Rc8 Qf6 Rd8 Rg6 Ba3 Nec1 Rd7 Rhg1 Rf5 Bb2 Re1 Rf3 Nf1 Bf2 Bf7 Qg7 Be8+ Rf6 Bh5 Re3+ Kd4 Re6+ Re3 Rg3 Kc5 Rf7 Nd5 Rf3 Rff6 Rf5 Bg4 Be5 Kb5 c3 Bd1 Qg4 Bb2 Qd4 Kc6 Rg8 Rfg6 Bh8 Re5 Rfe7 Rg5 Kf7 Rg2 Rd8 Rgg6 Ke8 Rf6 Rg7 Rff7 Rh5 Nh2 Rhg5 Nf1 Rf5 Rde7+
B4kr1/b4n1p/1r2B1PR/6B1/R3pn2/qnK1pRn1/4q1q1/B1N1n2N b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Ba6 fxe6 Be2 e5 Bf1 e4 h4 gxh4 a4 b6 Qf3 Bb7 Qf5 Bc6 Qa5 Bb5 axb5 bxa5 Kd2 e5 g4 d5 f4 a4 c4 d3 b6 h3 c5 b3 c6 a3 b7 d4 g5 b2 g6 a2 c7 h2 c8B e3+ Kd1 e4 f5 d2 Kc2 d1N f6 d3+ Kb3 d2 Na3 b1Q+ Kc4 Qe7 Bb2 Nc6 b8R Nc3 Rb3 d1Q Nh3 Nh6 Rb6 Rb8 Be6 Ne2 Nf2 Rg8 Nb5 Qbc2+ Nc3 Qa3 f7+ Ke7 Rb5 Rb6 Rf5 Ncd4 Rf3 Nf4 Be2 Bg7 f8B+ Ke8 Bc5 Nb3 Be7 Bd4 Bg5 Nf7 Bd3 Qcd2 Ne2 Kf8 Nc1 Q1e2 Bd5 Bc5 Ba8 Bd4 Rg1 Bc5 Nh1 Qg2 Rgf1 Qde2 Rh3 Bd4 Rh6 Bc5 Rf3 Bd4 Nf2 h1N Bc3 Ng3 Nh1 Rb7 Bb2 Ba7 Kc3 Rb5 Bc4 Rb6 Rb1 a1N Be6 Nc2 Ba1 Ne1 Rb2 Qd6 Ra2 Qe7 Ra6 Qa3 Ra4
1BbNB1B1/1Nnq4/1Pr1r2b/2qbr1bK/1b3k2/B3nN2/1r4R1/2Rr2r1 b - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Bh3 f3 Qd4 g3 Bf1 cxd6 Qg4 d5 Qh3 d4 Qg2 fxg2 e4 Ke7 Ke2 Kd6 Kf3 Ke5 Kg4 a5 h4 f5+ Kf3 d5 b4 g5 c4 f4 h5 d3 c5 d2 c6 d1R b5 d4 b6 d3 c7 d2 h6 a3 h7 g4+ Ke2 f3+ Ke3 f2 Rh3 a2 Ke2 a4 Rh6 a3 Rh2 Bh6 Bb2+ Kf4 e5 Nf6 e6 Ra5 e7 Qd7 e8B Na6 Rh3 Nd5 Rh2 Ne3 Bc3 Rc1 Rh1 d1R Nf3 g1Q Rh2 g2 Bd2 g3 Bb4 Re5 Nfd2 Rc6 Nc3 Rce6 Rb1 a1B Na4 a2 Nf3 Bc3 Nc5 a1R Ba3 Bb4 Rc1 Rb1 Nb7 Rc6 Nd8 Rb2+ Rc2 Rg8 h8B Rgg6 Bg7 Rge6 Bf6 Bb7 c8N Nc7 Nd6 Bc8 N6b7 Bg5 Be7 Bh6 Bd6 Bg5 Nd2 Bh6 Rc1 Bg5 Kd3 Bh6 Be2 f1B Kd4 Qf2 Bc4 g1B Rg2 Bd3 Ba2 Be4 Bb3 Bd5 Kd3 Rf1 Nf3 Qc2+ Kd4 Qc5+ Kd3 Bf2 Bc4 Bfe1 Ba2 Bed2 Ke2 Rd1 Bc4 Na8 Bb8 Nc7 Bd3 Rf6 Bh7 Rfe6 Bg8 Bg5 Rg1 g2 Kf2 Ke4 Kg3 Bh6 Kh4 Kf4 Rh1 g1R Rh2 Bg5+ Kh5 Be1 Nd6 Beh4 Rg2 Bh6+ Nf5 B4g5 Nd6 Qc3 N6b7 Qc2 Bg6 Qc5 Be8
2b3qb/K4Rr1/5rn1/Nq3nBB/1b1r1r2/1R1b3n/rnNk1PN1/1N1B4 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 b5 gxh4 b6 axb6 Qg4 b5 Qh3 b4 Qa3 bxa3 Kd2 Kf7 c4 Kg6 g4 d5 a5 e5 g5 Kf5 g6 h5 a6 b5 c5 d3 Ke3 a2 g7 b4 a7 h3 c6 d2 c7 d1R Ba3 b3 Bc4 h4 Bb5 d4+ Ke2 h2 Bb2 d3+ Ke3 h3 Bc6 d2 Bc3 b2 Bb5 Nd7 Na3 b1Q Ba5 Rh6 Bc6 Ne7 g8B Rf6 Bcd5 Qb5 Rb1 a1B Bc6 Nc5 Ne2 Nd3 Nf4 Ng6 Rf1 h1N Nd5 h2 Rc1 Bb4 Be8 Ndf4 Nc4 Nh3 Na3 Ng3 Nf4 h1B Nb1 Qdd5 Bh7 Qg8 Ng2 Kg4 Re1 Bac3 Re2 Rg1 Rc2 d1R Rb2 Rd4 Rb3 Rf4 Ne1 Bg2 Nc2 Bf1 Re1 Bd3 Re2 Rb8 a8N Rb6 Re1 Rc6 Nb6 Rcf6 Nc4 Rg2 Bb6 Bb2 Bc5 Rg1 Be7 Rg2 Rc3 Ba1 Na5 Nf5+ Kd2 Kf3 Rc1 Bd7 c8N Rg5 Nb6 Bc8 Nd5 e3+ Ke1 e2 Kd2 e1N Nde3 e4 Ng2 Nf8 Bf7 Rg7 Bb3 Bb2 Bg6 Ba1 Be8 Ng6 Rd1 Ra6 Bg5 e3+ Kc1 e2 Kd2 Rf6 Bef7 Ngh4 Bh5+ Ke4 Ba4 Ng6 Rc1 Bc5 Rb3 Bb2 Nce3 Bb4+ Rcc3 Ba1 Nc2 Bc4+ Kc1 Rb6 Nc6 Ng3 Bf6 Rgd7 Nce3 R4d6 Rc2 Rd2 Rbc3 Nf5 Bg5 Rd8 Rd3 Bh8 Ra3 R8d4 Kb2 Rb7 Bb3 Kd3 Ra7 Qbd5 Na5 Rg7 Rf7 Qb7 Ba4 Bb5 Kb3 Qb8 Rc4 Ra2 Nc2 Bba6 Bc6 Qb6 Bcf3 Qc6 Nba3 Kd2 Rc3 Nd3 Bfg4 e1R Bd1 Qb6 Ka4 Re6 Rb3 Rf6 Bh4 Qb8 Bg5 Bab7 Kb5 Nb2 Nc6 Qe5+ Kb6 Ba6 Ka7 Bd3 Na5 Qb5 Nb1+
K1B4b/2NNqqP1/1B2n3/4r2r/Rnr1N1bn/r1p1b3/1B1B2k1/2q1R2r b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 a4 gxf4 g4 e5 c4 d5 g5 dxc4 Ra3 h5 Qg4 hxg4 Rd3 Qd5 Na3 Qd8 Rd6 f3 Rf6 Qe7 Rf5 Qd8 Rf4 exf4 Kf2 Kd7 h4 Kd6 d4 f5 e5+ Kd5 a5 Ke4 g6 b5 a6 c5 d5 c3 a7 c2 h5 b3 h6 b4 h7 b2 d6 b1Q e6 b3 e7 g3+ Ke1 f2+ Ke2 f3+ Kd2 f4 Kc3 c4 Kb4 c3 Kc5 g2 e8R+ Ne7 d7 b2 Bb5 f1R Nh3 g1B+ Be3 c1N Nc4 f2 Rh2 Kf3 Bd2 Na2 Be3 Na6+ Kd6 Bg7 Bd2 N2b4 Rg8 Nc7 Ba6 Qc1 Rh1 b1R Nb6 Ne6 Ng5+ Kg2 Ne4 f3 Rh4 Rb3 Re8 Ra3 Bb7 Rb8 a8N Re1 Nc7 f1R Rf4 f2 Rh4 Rf8 h8B Rf4 Ba6 Bd4 Bf6 Ra8 Bb7 R8a5 Bg5 Bh8 g7 Ng6 Bh6 Qf6 d8B Rh5 Nd7 Re2 Ba6 Rfe1 Bb7 f1Q Bg5 Be3 Re7 Na6 Kc6 Qf3 Re8 Qe7 Bh6 Rh1 Bg5 Qd1 Bc1 Rg4 Bb2 Qc1 Bh6 Qff7 Bg5 Bg1 Bd2 Re3 Kb6 Nb4 Ba6 Rf4 Ka7 Re2+ Ka8 Be3 Nb5 Ree1 Bb6 Re2 Nc7 Ree1 Ng5 Rc4 Rd4 Nh4 Ne4 Nd8 Nf8 Bg4 Nd7 Rb3 Bc8 Ne6 Rd5 Ra3+ Ra5 Ref1 Ra6 Rff5 Ra4 Re5 Rf8 Qfe8 Rf1 Q8f7 Re1
4R1bB/4NNqn/1q1n1Rr1/p1P3rq/r1R2r1B/1qRK4/4r2q/bk5N b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 a5 g5 a6 h5 Qd2 f3 Qf4 gxf4 g5 bxa6 Bh3 a5 Bf5 a4 Bg4 hxg4 Kd2 Ke7 h4 Kd6 c4 Kc5 e4 Kb4 b3 d5 e5 f5 e6 g3 e7 g2 e8R a3 h5 d3 g6 f2 c5 f1Q g7 f3 h6 a2 h7 d4 Na3 f4 Nh3 g1R Rb1 a1Q Ng5 f2 Rb2 f3 Re1 Nd7 Nf7 Nh6 g8R Qg2 Rc2 f1R+ Re2 f2 Ne5 Re1 Nac4 f1R Rf2 Bg7 Rb2 Nf5 Ng4 Nf6 Ra2 Be6 Nh6 Qh2 Ne5 Nd6 Nf3 Rg5 Nf7 Qb6 Re8 Rg8 h8B Nh7 N3e5 a6 Rb2 Ka3 b4 Rg6 Rb3+ Ka2 Rc3 Kb1 b5 Rg5 Re2 Rf4 Rf1 Bf6 Ng4 R8g6 Nf2 Bg7 Re4 Re2+ Kd1 d2 Nh1 Qb2 Nd8 Bg8 Nf7 Qc6 b6 Be5 b7 Qcb6 b8N Bf6 Nh6 Q2b3+ Rc2 Qf7 Re3 Qg7 Nf7 Rfg4 Ne5 Rh5 Nbc6 Rf2 Nd7 a5 R8e5 Re8 Bb2 Rf3 Bc3 Rhg5 Re7 Rff5 Nde5 Rf2 Re6 Re4 Rfe1 Rff4 Nf7 Be5 Rf6 Re7 Nf2 Re6 Ke2+ d1Q+ Kf1 d3 Rh3 Rfg4 Nh1 d2 Bd4 Rgf4+ Bf2 Ra4 Rc4 Ba1 Ra3 Kb2 Rac3 Qdb3 Ree3 Kb1 Ke2 Re7 Kd3 Re6 Re2 Re8 Bh4 d1Q+ Rd2 Qh5 Re2 Rc8 Re7 Rc7 Re8 Re7 Re4 Ree5 Rc4 Re2 Ne7
B1B1k1br/b1rNn1qr/n1BK2n1/1R1P4/2N5/7n/2bpNRq1/2nb3N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 exf6 Na3 f5 Nb1 f4 c4 d6 d5 b3 Qd4 Bg4 Ba3 cxd4 c5 Bf5 c6 Bc8 Bc5 dxc5 Kf2 b5 Kf3 f5 g4 h5 e4 b4 a4 d3 c7 c4 g5 c3 e5 h3 a5 d2 e6 c2 a6 c1N e7 h4 g6 h2 a7 b2 g7 h3 Bb5+ Qd7 Nc3 b1B Bf1 b3 Ba6 b2 Ra4 Bc2 Ra3 b1N Bd3 Na6 Ra2 Na3 Nge2 Nc4 Nd1 Ne5+ Kf2 f3 Kg3 f2 Kf4 f1B Ng1 Be2 Ra4 Ng6+ Ke3 f4+ Kd4 f3 Rb4 f2 Rb5 f1Q Nf2 Bed1 Ne2 Qg2 Rf1 h1N Bc4 Rb8 a8B h2 Bb3 Rb7 Ba4 Nh6 g8N Nf5+ Kc3 Bh6 Kc4 Be3 Nf6+ Kf7 e8N Ba7 Nf4 Nfe7 Nd6+ Kf8 Ne2 Rh7 N2e4 Nf2 N4g3 Nh3 Nh1 Qdg4+ Rf4 Be6 c8B Q4g3 Rf2 Rc7+ Rc5 Qg5 B4c6 Bg8 Kb5 Qh6 Nc4 Qg7 Nd7+ Ke8 Ka5 Nb8 Kb4 Rh8 Rb5 Rh7 Rb6 Rh8 Kc5 Na6+ Kd6 Rh7 Nhg3 h1R Rb5 Ng1 Nc3 R1h6 Nce2 Nh3 Nh1 Rh8 Rf5 R6h7 Rf2
3rN1qq/N1p4k/Nb3BrR/1q1q1Bnb/Pnq4n/1n2b1K1/1B4B1/5R2 b - - 0 1 illegal: No possible last move
2q1Rqn1/2P1q3/1p4b1/R1r2BRb/kNn1B1rn/3N3r/7n/bBr1R2K b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Qd3 h6 Be3 Bg7 Bf2 Qh4 Qf3 gxf3 g4 Ra5 g5 Ra8 g6 Qd8 Bh4 Bf8 Bg5 hxg5 Kf2 f5 h4 d5 a4 Kd7 e4 Kc6 c4 b6 c5 g4 h5 b3 a5 b2 e5 g3+ Ke1 d3 h6 Kb5 a6 f2+ Kd2 f3 Ke3 g2 c6 f4+ Kd4 Qe7 a7 Bf5 c7 Nd7 h7 Bg7 Rh2 Nf8 Ne2 g1R Rh6 d2 Ra6 d1B Ra3 Rg4 Bh3 f1N Nc1 f2 Rb3+ Ka4 Nd3 Ne3 Rh5 f1N Rb5 Nh2 Rg5 Nc4 Na3 b1R Nc2 Rc1 Ncb4 Bf6 g7 f3+ Nf4 Re8 a8B f2 Bb7 Be4 Nfd3 f1Q Bc6 Ng6 Bb7 Rg3 Bf5 Nh4 Bc6 Rg4 Ba8 Nb2 Ke3 Rc5 e6 d4+ Kd2 Qf4+ Ke1 Nc4 Bc6 Qfd6 Kf2 Qdd8 Bb7 Qc8 Bd5 Qf8 e7 Rd8 e8B Rd6 Beg6 Rdc6 Ne1 Bb1 Ned3 Be2 Bg2 Qe7 Kg1 Qcf8 Ne5 d3 Kh1 d2 Ned3 Ba1 Bge4 d1Q+ Ne1 Qdd7 Ned3 Nf6 g8R Qdc8 Rg7 Ng8 Rf7 Rg3 Rf6 Bh5 Re6 Nh6 Re5 Rg8 h8R Rh3 Rg1 Bc2 Re1 Bb1 Bh7 Rg4 Rg8 Bc2 Rg5 Ng8 Re6 Qef6 Re8 Q6e7 Ne5 Rd6 Bhg6 Rd1 Ned3 Rc1 Bf7 Ne5 Ba2 Nc4 Bb1 Be5 Bh7 Rd5 Bg2 Rf3 Nf2 Ba1 Bg6 Bf5 Nfd3 Rh3 Be4 Rc5 Bh7 Be6 Bhg6 Bf7 Bgf5 Bfg6 Ra5+
1n1B1Nrb/2B3n1/1r1n1NR1/1rRb1P1k/1p5b/q1B1b3/1n2N3/1K1nN1n1 b - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 c4 dxc4 f4 g5 Ba3 f5 Bc1 fxe4 f5 Ra7 Bh3 Ra8 Qf3 h5 Qf4 gxf4 g5 Na6 Bg4 hxg4 Kf2 Nb8 Kf1 Rh4 Ke1 Rh8 Kd1 Kf7 Kc2 b5 h4 e5 d4 c5 a4 g3 d5 b3+ Kb2 f3 a5 f2 a6 f1N a7 e3 h5 e2 d6 e1B h6 b4 d7 g2 h7 e4 g6+ Kf6 g7 e3 Ra6+ Kg5 Ka1 c3 Rh2 c2 Na3 b2+ Ka2 b1N Rc6 c4 Ra6 c3 Rah6 Bb7 Rf6 Ne7 g8N Bg7 Rh3 Ng3 Ra6 Bd5+ Nc4 Nc8 Rah6 Qa5+ Ba3 c1B R6h4 c2 Nf6 e2 d8B Nh5 Be7 Nd6 Rc3 Be3 Bd8 Rg8 h8B c1R Rg4+ Kh6 Kb2 Bh4 Nd2 e1N Rc5 Nc3 Ne2 g1N Nf3 Rd1 Rg5 Nd3+ Kc2 Ra1 Bc1 Qa3 Ne1 Nd1 Rg4 Ra2+ Kb1 Rd2 Bc7 N3b2 Bd8 Rc2 Bd2 Rc4 Bc3 Re4 Rg2 Re7 Be5 Rb7 Bh2 Rb5 Rg4 Ne8 Bhc7 Nd6 Rg3 Nd7 Rg4 Rab8 a8N R8b7 Nb6 Nb8 Nbd7 R7b6 Ne4 Be5 Nf8 Bc3 Be5 Ng7 Rg6+ Kh5 Bf4 Bcf6 Be5 Ne6 Bd4 Bh8 Bc3 Ng7 Nf6+
3B3N/nnBq2PN/1Nq1b3/2b5/rpBRRKb1/8/2prN1b1/3knbr1 b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 h6 gxh6 Qc2 h5 Qb3 h4 Qa3 bxa3 Kf2 Ke7 Kf3 Ke6 d4 Kd5 g4 c5 e3 h5 g5 f5 g6 b5 a5 a2 a6 b4 g7 h3 a7 h4 Na3 h2 Be2 c3 Nc2 c4 Nh3 Qd7 Rb1 a1N Ne1 c2 Bd3 c3 Nf2 h3 Ba3 c1R Ng2 Nc6 Nh4 Nge7 Bf1 Na5 Bg2 Kc4 d5 Nc2 e4 Ne1+ Ke2 f3+ Ke3 c2 e5 Kc3 d6 Nb7 e6 Nc6 Kf4 Kd2 Ne4+ Kd1 e7 f2 e8N f1B Ng6 Be2 N8f6 Bg4 Bb2 Rh5 Rf1 h1B Be5 h2 Nh8 Rg5 Bh3 Bg2 Nh7 h1Q Ng3 Rh5 Ne2 Rh6 Kg5 f4 Rf2 f3 Kf4 Rh5 Rb3 Be6 Re3 Rh4+ Bg4 Rh2 Re4 Rb1 Rf1 f2 Bh5 Bg4 Bf7 Be7 Rg1 f1B Bb3 Qe6 d7 Bc5 d8B Qf5+ Kg3 Be6 Bec7 Qf7 Bc4 Qd7 Kf4 Ra1 Ba5 Ra4 Bdc7 Re8 a8N Na7 Nb6 Rd8 Nc1 Rh3 Ne2 Rg3 Ng5 Qh6 Rh1 Qg6 Nh7 Qge8 Rh2 Qc6 Rh5 Rd2 Rd5 Qed7 Rd6 Bh1 Bd8 Rg1 Rdd4 Bhg2 Nd5 Qb5 Bac7 Qbc6 Nb6
1nqN2n1/3q4/r1bB3q/1Pn1b1NR/6pB/2br1p1B/k1R2KB1/b3r1R1 b - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f4 exf4 d5 b5 d6 bxa4 Bh3 f3 Qd4 g3 Bf1 cxd6 Qg4 d5 Qh3 d4 Qg2 fxg2 e4 Ke7 h4 Kd6 b4 a5 c4 g5 h5 f5 b5 Kc5 h6 Kb4 h7 Kb3 c5 d5 e5 f4 c6 g4 c7 f3 e6 d3 e7 d2+ Kd1 d4 e8B a3 Ne2 g1Q Rh4 a4 Bc6 a2 Rh2 a3 Nbc3 g2 Nb1 Bb7 c8R Bg7 Rh5 Ra6 Re5 Qh1 Rh5 g1B Be4 Bc6 Bd3 Bh2 Nbc3 Bhe5 Ne4 Qd7 Rc7 Qc8 Nf4 Qh4 Bg2 Qf6 Nc3 Qh6 Bdf1 Bgf6 Bb2 Bg7 Rb1 a1B Ne4 Ka2 Ng5 Bgf6 Nfe6 Bg7 Kc2 d1R Nd8 Re1 Kd2 d3 Bc3 Bgf6 Bb4 Bg7 Rd1 Bgf6 Bd6 Bac3+ Kc1 d2+ Kc2 Ba1 Kd3 Bec3 Rb1 Bfd4 Bh3 Be5 Bfg2 d1Q+ Kc4 Qb3+ Kd3 Qf7 Rc1 Qfd7 Rb1 Rd1+ Ke3 Rd3+ Kf2 Ne7 Kg1 Re8 h8B Ng8 Rd1 Bf6 Kf2 Re1 Rb1 Bfe5 Bf6 Red1 Rb4 Ba8 Bg7 Bcb2 Bc5 Kb1 Bh1 a2 Bd6 Bd5 Rc2 Bc6 Bf6 Rc1 Re4 Bbc3 Re1 Bab2 B1g2 a1N Nge6 Ka2 Rg1 Nb3 Bh4 Re1 Rc1 Nc5 Ng5 Ba1 Rc2+
8/k1RBN1R1/2B1q1q1/2bn1qp1/qB2r2p/Rq3p1R/N1P2r1p/Kn3b2 b - - 0 1 legal: proof: d4 g5 g4 a5 f4 c5 h4 cxd4 b4 axb4 f5 Bg7 f6 exf6 Qd2 gxh4 g5 Bh6 g6 Bf8 Qg5 fxg5 Kd2 b5 a4 f5 e4 d5 e5 Kd7 e6+ Kc6 a5 Kb7 a6+ Ka7 e7 h5 e8R h3 g7 h4 Bc4 f4 Nf3 d3 Ba3 d4 Kc1 b3 Kb2 d2 Re7+ Qd7 Bd6 d1Q Bc7 h2 Rf1 b4 Rfe1 d3 Rf7 d2 Bf1 Ne7 g8R Qa4 Re5 Bh3 Re1 Nd5 Ng1 Bc5 Bg2 Qg4 Rc8 d1Q Rcf8 Qe6 Bf1 Nd7 Rc8 Re8 Re3 Qdg4 Ne2 Nc3 Rh7 Qgf5 Rg7 Nf6 Nc1 Nfd5 Bb5 Bf1 Ba5+ Re7 Rc6 Rf8 Rh3 Rf6 Ra3 Rff7 Nd2 Nb1 Na2 Qeg6 Nf3 Re4 Nd4 Qge6 Kc1 Qfg6 Nf5 b2+ Kd1 b3 Bb4 f3 Rc8 Re7 Bd7 Re2 Rc6 Rf2 Rc8 Re8 Ne7 Qef5 Ng8 Re5 Ne7 Re4 Rc7+ Kb8 Rg3 Nd2 Nc1 b1Q Be8 b2 Bd7 Qa2 Rh3 b1Q a7+ Ka8 Ng8 Qc4 Ne7 Qbb3 Na2 Qca6 Kc1 Qbc4 Kb2 Qae6 Ka1 Nb1 Rc6 Kb7 a8B+ Ka7 Bb7 Qd3 Rc7 Qb3 Bbc6+
KbrB1kB1/3b2B1/p1p3R1/4b3/2q1n1qR/N2n2Pr/4ppR1/Bnn1N3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 e4 b5 h4 e5 a4 exf4 h5 bxa4 h6 gxh6 Qf3 h5 Qg3 h4 Qe3 fxe3 Ke2 f5 Kf3 h5 d4 c3 b4 f4 d5 c2 e5 c6 Ke4 a6 e6 a3 d6 f3 b5 e2 b6 h3 b7 f2 e7 a2 Bb2 c1N Kd4 h2 Kc5 h4 Bd4 h3 Bf6 Nd7+ Kb4 Nc5 b8B Bd7 Bg7 Qc8 Ka5 Nf6 Kb6 N5d3 Nf3 Ne4 Ne1 Nc3 Na3 Nb1 Ba7 Kf7 e8R Be7 Rg1 h1N Rg8 Ng3 Rh1 Ne4 g3 h2 Bh3 Bf8 Be6+ Ke8 Rg1 h1Q Rg2 Qh4 Bd5 Qg4 Bb8 Qd8+ Kb7 Rh3 Ba7 Qf6 Bd4 Rc8 Bb2 Qc3 Bb3 Bf5 d7+ Ke7 Ka7 Qc4 d8B+ Kf7 Bbd4 Bd6 Kb7 Bb8 Ka8 Bd7 B4f6 Nbc3 Rb1 a1B Ba2 Qd5 Rb4 Nb1 Bb3 Bae5 Bc4 Bec7 Ba1 Be5 Ba2 Ng5 Rd4 Qc4 Rf4+ Qf5 Rh4 Qg4 Bgf6 Ne4 Rg6 Kf8 Bb3 Qc3 Bg8 Qc4 Bg7+
nRnbB2r/b1B1P3/3p1KpB/R3n1r1/R1QQ2br/6kQ/n1p1n3/8 b - - 0 1 legal: proof: f4 h5 b4 d5 g4 hxg4 a4 b5 c4 a5 d4 e5 Nc3 exf4 Ne4 Qf6 Nd6+ Ke7 Nf3 Qg6 Ne5 Qg5 c5 Qf5 Nec4 dxc4 d5 Qd7 Bh3 axb4 Bf1 b3 Qd2 b4 Qd1 Qb5 axb5 Rh7 Nb7 Ke8 d6 Rh8 d7+ Ke7 Nd6 cxd6 Kd2 Kf6 d8B+ Kf5 h4 g6 c6 g3 c7 Kg4 e4+ f3 Ke3 f5 Kd4 g2 b6 g1B+ Be3 f4 e5 b2 e6 b1N h5 b3 h6 c3 h7 c2 b7 b2 Qe1 f2 Rh4+ Kg3 Ra3 f3 Bc4 Nd2 Bf1 b1N Kd5 Be7 Bc5 Nd7 b8Q Nc4 Rh2 Ra4 Qbb4 Nce5 Qe2 Bf6 Qb6 Rh4 Ra4 Bg5 Bh3 f1N Qc4 f2 Be3 Bf6 Bg4 Be7 Bh6 Nc3+ Kd4 Na2 Kd5 Bf6 Qbd4 Nb6+ Ke4 Bd7 c8Q Ne7 Bc7 Na8 Ra5 N7c6 Kd5 Bd8 e7 Na7 Be2 Bg4 Bd3 Rh5 Rh4 Rg5 Qf5 Nc8 Ke6 Nh2 Kf6 f1R Be4 Rf4 Bc6 Nhf3 Be8 Re4 Qd7 Be3 Qf5 Ng1 Qd7 Ne2 Qf5 Rg8 h8R Rf4 Qdd5 Ba7 Qdd4 Rg7 Rf8 Rh7 Rg8 Re4 Qf1 Rh8 Qh3+ Kf4 Qh1 Kg3 Rh3+ Kf4 Qc6 Bd7 Bf7 Ncb6 Rc3 Kg4 Rc4 Kg3 Qcd5 Rh4 Rca4 Bh3 Q5c4 Bg4 Bb8 Bc7 Rc8 Bd8 Bc7 Nd3 Be8 Ne5 Rb8 Nc8 Qh3+
2B1R3/1K2nnP1/1p2p1RR/2B2bq1/2Q3p1/1kBn1p1Q/1b1Qn3/b4br1 b - - 0 1 legal: proof: e4 a5 d4 d5 f4 dxe4 b4 axb4 f5 e6 d5 e3 f6 Ra3 d6 cxd6 Nf3 Rb3 Ng1 Rc3 g4 g5 Be2 Rc7 Bf1 Re7 fxe7 Kd7 Nd2 Qe8 Nh3 Qd8 Nf4 gxf4 Nf3 h6 g5 h5 Ne5+ Kc7 Ng4 hxg4 Qd2 Kc6 Qd1 Kd7 Ke2 Kc6 Kd3 Kd5 e8Q f5 a4 e2 h4 e1B h5 f3 h6 f4 a5 b3 c3 b6 g6 f2 h7 b2 a6 b1B+ Qc2 f3 a7 Ne7 a8R Bg7 Rh6 Nbc6 R1a7 Ba6+ c4+ Kc5 Ke4 Kb4 c5 Ne5 c6 Bc3 c7 Ba1 c8Q Nf7 Be3 Bgb2 Qc4+ Ka3 Bd3 f1N Qd2 d5+ Kf4 d4 Ke4 Nd6+ Ke5 Ng3 Be4 Ne2 Bb7 Bc2 Bc8 Bf5 Rb8 d3+ Bd4 Nd5 Rg7 Qg5 Qd7 Rd8 h8B Ne7 Qb7 Rd7 Qe4 Ra7 Qef4 Bb5 Qg3 Rd7 Qh3 Rc7 Qd5 Rc1 Qc4 Rg1 Rg8 Nb7 Bc3 Nd8 Kd6 Nf7+ Kc7 Ba6 Bhd4 Bb5 Qe3 d2 Kb7 d1N Qd2 Nf2 Re8 Nd3 Bc5+ Nb4 g7 Ka4 Rg6 Ka3 Qe4 Kb3 Rh8 Nd3 Rhh6 Ng8 Bd7 Ne7 Re8 Bc4 Bc8 Nde5 Rhh8 Nc1 Reg8 Bf1 Re8 Ned3 Rhh6 Ne2 Qc4+
bRr1Q1Bk/7R/Kp2B2P/2B5/2r1Rq1n/2bpr2q/1r2nQQn/2qr4 b - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 Nh3 e4 Nf2 a6 Ng4 axb5 Nd2 hxg4 Nf3 exf3 Ba3 b4 Bb2 Qa5 Bc1 Qd8 Kd2 f5 Kd3 Kf7 Kc4 Kg7 Kb5 d5 e4 b3 h4 f2 a4 f3 c4 b2 h5 b1R+ Qb3 f4 a5 d3 a6 d4 c5 d2 a7 d1R c6 g3 e5 d3 e6 g2 c7 g1Q e7 b6 e8R Bb4 g6 Qd7+ Kc4 Qh3 Kb5 Nh6 Re2 Re8 Rea2 Nf5 h6+ Kh8 Qb2+ Bc3 Be2 f1Q Qb4 f2 Ba3 f3 Qb2 Bb7 c8Q Nc6 Bc5 Nh4 Ra3 Rb8 a8Q Qgg4 Ra6 Qf4 Ra7 Qg1 R1a4 f1R Re4 f2 Bg4 Rbc1 Qd8 Rc8 Be6 Qgg5 Rg1 Nd4+ Ka4 Ne2 Kb5 Bd5 Ka6 Rd2 Rb7 Rfd1 Rb8 f1N Qb7 Nh2 g7+ Kh7 g8B+ Kh8 Qf7 Ba8 Rg3 Re7 Qde8 Rdc2 Qa2 Rb2 Qf5 Rcc2 Qff8 Qc1 Qf2 Qgf4 Rg5 Rg7 Rf5 Rg3 Rf7 Re3 Re7 Bd4 Qd5 Rc4 Qg5 Be5 Qgg2 Bc3 Rh7#
7N/5r1p/1rkr1bbQ/1qbQ1pn1/1Q2qrR1/2r1PRr1/3N2n1/4R1KN b - - 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 f5 Ba3 f4 Kd2 f3 Ke1 gxh6 Bb2 h5 Bc1 h4 Bg5 b3 e3 Ra5 Kd2 Ra6 Bf6 Qc7 Be2 fxe2 f4 Ra8 f5 Kf7 Bg7 Qd8 f6 Ke6 f7 Kd6 Bf6 exf6 Kc1 Ke6 Kd2 Ke7 Ke1 Kd6 Kf2 e1B+ Kf1 b5 c4 b4 g4 h3 a4 d3 c5+ Kc6 g5 d5 a5 d4 g6 d2 a6 b2 a7 h2 g7 d3 Qg4 d1R Nd2 b1R Ngf3 b3 Rg1 h1R Ra6+ Qb6 Kg2 b2 Qh3 Rdc1 Ne4 d2 Nd6 d1R Qf5 Bc3 Ne8 Ne7 g8R Rd6 Rg7 Rg8 Rf1 Rh4 Kg1 Rf4 Ra1 Nd5 Qh5 Nd7 Rg4 Qb5 Nd2 Ne5 Qh6 Bf5 Ng7 Bg6 Nh5 f5 Ng3 Rb8 a8Q+ Rb7 Nh1 Nf3+ Kf2 Ng5+ Kg1 Be7 f8N Bcf6 Qa5 Rc3 Qb4 Rb6 Re1 Rbc1 Rf1 R1c2 Rae1 b1Q Rf3 Rc1 Qc4 Qe4 Qb4 Kc7 c6 Ra1 Nd7 Ra7 Ne5 Rg7 Nf7 Bf8 Nh8 Rf7 Kh2 Ra1 Re2 Rg1 Re1 B8e7 Nb1 Rg3 Nd2 Kc8 c7 Kb7 Nb3 Kc6 Nd2 Bf8 c8Q+ Nc7 Qe6 Nd5 Rff1 Rff3 Ra1 Nf4 Nb3 Ng2 Rae1 Rf4 Kg1 B8e7 Qe5 Rd7 Rf3 Bc5 Nd2 Rd6 Qd5+
k1nnb1n1/B3p1p1/4pn2/R1nQn1KQ/Q1Rb1P2/1q2B2r/r7/1B1qR3 b - - 0 1 illegal: Other
2NQNb2/1n5P/q7/n1p1N1n1/2pRpRpr/QRn5/Q1r5/k2nKbr1 b - - 0 1 illegal: No possible last move
bR2nbr1/2n2k1p/1B1n2Q1/3R1p2/1b2Q3/Qr3BB1/1ppq1P2/r1R2Kn1 b - - 0 1 legal: proof: c4 g5 b4 d5 h4 gxh4 b5 d4 b6 axb6 c5 bxc5 Qb3 c4 Qd1 c3 d3 c2 Nc3 e5 Nf3 dxc3 d4 Bh3 d5 Bc8 Nd4 exd4 a4 f5 g4 c5 e4 b5 g5 h3 d6 b4 e5 h2 e6 c4 a5 d3 g6 d2+ Ke2 b3 e7 b2 g7 Bb7 a6 Nf6 g8R Kf7 a7 Na6 d7 Rb8 a8Q Ne8 Rb1 Nac7 Qa1 Ba8 Rg3 Rg8 Rhg1 h1R Qe1 d1N Rd3 Ne3 Rd5 Rb3 Bd2 c1B Qa3 c2 Bg2 c3 Bf3 Nc4 Kf1 Ncd6 Bf4 Bd2 Bg3 c1N Qe4 Ne2 Rc1 Rh2 Rg2 c2 Rg1 Bb4 Rg2 Qc8 d8B Rh1+ Rg1 Ne6 Ba5 Qc3 Bb6 Qd2 Re5 Nf6 Rd5 Nc7 e8Q+ Kg7 Qc6 Nfe8 Kg2 Kf6 Rge1 Ng1 Kf1 Kf7 Red1 Nb7 Rd8 Nbd6 Rb8 Qf4 Rd4 Qd2 Rd5 Ndb5 Kg2 Ne2 Ra1 Re1 Qh6 Nbd6 Qg5 Ng1 Rd1 Re2 Kf1 Ree3 Qa4 Ra3 Rc1 Ra1 Qa3 Rb3 Qg6+
2K3Bb/Prb1pR1Q/1k1B1B2/B1b1p3/1n3Q2/r1p1r3/4B1n1/q2n2rN b - - 0 1 illegal: No possible last move
r1BRr2Q/4rB2/1qn2Prb/1k3B1r/1B2pb2/3bBb2/N6b/1Q1nKn2 b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 c5 d4 cxd4 a4 f5 Ra3 fxe4 f5 Nf6 Nc3 Ng8 Nd5 h6 Nf4 gxf4 g5 h5 Rg3 Ra5 Rg2 Ra8 Rg4 hxg4 c4 b5 h4 e5 c5 d5 a5 Kd7 g6 Kc6 g7 d3 h5 f3 h6 d2+ Kf2 d4 a6 e3+ Kg3 f2 f6 e2 a7 e1B h7 e4 Nh3 b3 Bb2 d3 Ba3 b2 Kg2 b1R Bb4 g3 Be2 f1B+ Kg1 g2 Nf2 Ne7 g8B Nf5 Rh5 Qb6 Ba2 Bh6 Ba3 b4 Bg8 b3 Bd5+ Kb5 c6 b2 c7 Ng3 Bd6 Nc6 Rh1 Bg4 c8B Bf3 Bf7 Re8 h8B Bf4 Qc1 d1R Bg7 Bed2 Bb4 Ra1 Bh6 b1R Bg5 Ra5 Rh8 Bde3 Rf8 Re1 Bd1 d2 Qb2 Rba1 Qb1 R1a4 Bdb3 d1N Bbe6 Ra3 Bf5 Bd3+ Kh2 Re7 Rd8 Nf1+ Kg1 Rb8 a8Q Bd2 Bh4 Bh6 Bg5 Bf4 Qa7 Ra1 Qd7 Raa8 Qe8 R1a5 Qh8 Re3 Ng4 Re2+ Ne3 Rea2 Bh4 Rc2 Bf2 Rc5 Nc2 Rce5 B5g6 Rg5 Bgf5 Rg6 Be3 Nc3 Kf2 g1B+ Ke1 Bgh2 Na1 Nd1 Nb3 Rg1 Bb7 Rg6 Nc1 Rc8 Na2 Rcb8 Rd4 Rbe8 Bbc8 Ka4 Bg4 Rh5 Rd8 Kb5 Bgf5
N3q1rn/Q1qQ3b/2pQN2b/1q4q1/1QQ1q1qP/6k1/1n3bB1/3brR1K b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 e5 a4 exf4 Kf2 d5 Bb2 dxc4 Ke1 h6 Be5 f3 Bf4 Ra6 Ra3 Ra8 Rd3 Bc5 Rd5 gxf4 g5 Be7 g6 Bf8 Rg5 hxg5 Kf2 Kd7 e4 Ke6 h4 Ke5 g7 b5 d3 f5 a5 c6 a6 c3 a7 g4 Qd2 c2 Qd1 c1Q Nc3 b3 Nd5 g3+ Ke1 f2+ Ke2 b4 Kf3 b2 Kg2 b1Q Ne7 f3+ Kh3 Kf4 d4 g2 Kh2 b3 d5 b2 d6 Qc7 d7 Na6 d8Q Nh6 g8Q Nc5 e5 Na4 e6 Qe4 Qe2 b1B Qe1 Nb2 Qd3 Nf7 Qc4 Bh6 Qg7 Re8 Qd3 Nh8 Be2 f1Q Qf2 Qfd1 Qfd4 f2 Q4c4 f1Q Bf3 Qfe1 Qgd4 Rb8 a8Q Rg8 Bh5 Qg4 Nf3 Rb7 Rf1 g1B+ Kh1 Bf2 Qaa6 Kg3 Nd5 Qcg5 e7 f4 e8Q Rb5 Nb6 Re5 Qf8 Bc2 Qaa4 Bf5 Qa7 Bh7 Na8 Bd1 Qfd6 Qef5 Qca2 Be3 Qd7 Qh3+ Nh2 f3 Qb4 f2 Bf3 Qfg6 Bg2 Qhg4 Rg1 f1Q Q3d6 Qb5 Qac4 Qe8 Nf3 Bf2 Nd4 Qee2 Ne6 Qc2 Qdd2 Re1 Rf1 Qce4 Q2d6+
N3BQ2/RqP1r2Q/br3qp1/2K2R1R/4Rpnr/1rb4q/2n2k2/br3R2 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 g5 e5 g6 hxg6 Bd2 g5 Bc1 g4 e4 f6 f5 Rh7 Bf4 Rh8 Nd2 Ne7 Ndf3 exf4 e5 Ng8 e6 Rh3 Ne5 fxe5 Ba6 Rh4 Bf1 Rh8 Ke2 Ke7 Kd3 Kf6 Kc4 Kg5 a4 Kh4 a5 d5+ Kb5 g6 c4 e4 a6 b3 e7 g3 e8R e3 c5 e2 c6 e1R c7 b2 a7 b1Q+ Qb3 d3 f6 d2 f7 d1Q h3 g2 Qb4 Kg3 h4 d4 h5 d3 h6 d2 h7 Qg4 Kb6 d1R Bc4 Bg7 f8R Nc6 Rh2 Nd4 Rf7 Kf2 Ra6 Nc2 Ra1 Rd3 Ra6 Nf6 Rfe7 Rb8 a8R Rc3 Rh4 Qh3 Bf7 Ng4 R8a7 Rf3 Ra2 Ba1 R2a5 Qd6+ Kb5 Qf6 Ne2 b6 Kc4 b5+ Kd5 Re3 Nc3 Ba6 Na4 Ra3 Qd6 b4 Nb6 b3 Na8 b2 Re5 Rb4 Qf8 Ree4 Rb8 Rf3 Rf5 Re7 Ra4 Qbh1 Rd8 b1R Be8 Rb6 Kc5 Rfb3 Rdd5 g1B Rd6 Ke3 Rd1 Qb7 Rf1 Bf2 Rd4 Be1 Ra4 Bec3 Rb4 Rg8 h8Q Ke2 Qhg7 Rh8 Ra4 Rh5 Qh7 Ke3 Rh1 Kf2 Re4 Rg5 Rh6 Rh5 Rc1 Rh4 Rhh5 Bf1 Rd1 Ba6 Rf1+
1nR2rb1/2N1n1n1/Bq3N2/pQN2n2/4nr1Q/1p1NN3/1Prk4/2b1b1nK b - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 g5 cxd4 g6 hxg6 Bd2 g5 Bc1 g4 a4 Qb6 Ra3 Qf6 Rb3 Qd8 Rb6 axb6 a5 Qe7 a6 Qf6 Bd2 Qd8 Ba5 bxa5 Kf2 Ke7 Kg2 Kf6 e4 Kg5 c4 f5 e5 b5 e6 d5 c5 d3 a7 f3+ Kf2 Kf4 h4 g5 h5 d2 h6 d4 c6 d3 e7 b4 e8N b3 h7 Bh6 c7 Ne7 Nc3 Rf8 h8Q Be6 c8N Bg8 Bh3 g3+ Kf1 Ke3 Ng7 f4 Qa1 d1N Qb1 g4 Nd5+ Kd2 Nf5 f2 Kg2 f1N Nb4 Qb6 Nd5 Nf2 Rh2 Ne4 Qf6 f3+ Kh1+ f2 Nh4 Ne3 Qc6 N3f5 Ne2 Ng7 Nd6 f1N Qd7 Ne3 Ng2 Rf4 Nc1 N3f5 Nf6 Bg5 Ne3+ g2+ Kg1 Bh4 Nb7 Bg3 Rh1 Be1 Kh2 g1N Nc5 g3+ Kg2 Na6 Qb5 Rf8 a8N Nb8 Bg4 Be6 Rh8 Bg8 Kh1 g2+ Kh2 Ne2 Bf3 g1B+ Kh1 Bgf2 Qa1 Ng1 Qaa4 Bh4 Bh5 Bg5 Nc7 Rf1 Rh6 Na6 Nh7 Nb8 Ne8 Nf6 Nc4+ Kc2 Qbb4 d2 Be2 Ng4 Rc6 d1R Rc8 Rd2 Nc7 Nf6 Qd7 Bh6 Qd4 Be3 Qh4 Ne4 Nf6 Rf4 Bd3+ Kd1 Qa4 Rc2 Qe8 B3f2 Bf1 Bd2 Ne3+ Ke1 Ba6 Bg3 Na2 Bc1 Nb4 Kd2 Qb5 Be1 Nbd3
kn4r1/4Q3/1r1Pnbrb/2R3pq/2KbRRR1/NRp3Qb/qr2n3/1B6 b - - 0 1 legal: proof: c4 a5 g4 d5 f4 dxc4 b4 axb4 e4 g5 Bb2 f5 Be5 fxe4 f5 h6 Nc3 Rh7 Nce2 Rh8 Nf4 Qd3 Bf6 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 Ke2 Kd7 d4 Kc6 h4 b5 a4 Kb7 h5 e5 f6 c5 d5 b3 h6 e3 d6 c3 Kd3 e2 g7 e1B f7 c2 a5 c1N+ Ke4 f3 Kd5 e4 h7 b4 Ne2 e3 Qd3 c4 Ra4 f2 Kc5 b2 Ra1 b1R Qf5 b3 Nd4 e2 Nf3 b2 Qc2 Qe8 Ra4 Nf6 g8R Bh6 f8R Nh5 Qd3 Ra6 Nd4 Bh3 Nb5 Rb6 a6+ Ka8 a7 Ng7 Rf4 Bc3 Na3 e1B Rg1 Qh5 Rc8 Bf6 Qg3 c3 Rae4 Ne2 Kc4 Rg8 h8R Ne6 Rc5 Rg6 Bg2 f1R Rh7 Bf2 Rb7 B2d4 Bf3 Rc6 Rb3 Rb6 Bg4 Rf2 Bf5 Rg2 Qe1 Rh2 Rgg4 Ra1 Qg3 b1Q Re3 Qb2 Bb1 Qa2 Ree4 Rg2 Bc2 Rb1 Bd3 Rb2 Bb1 Rf2 Bd3 Bh8 Rff5 Kb7 Bb1 Rg8 Rf8 Rf6 Rf7+ Nd7 Rf8 Rfg6 Rff4 Nb8 Rce5 Bf6 a8Q+ Kc8 Qa4 Kb7 Qd7+ Ka8 Qe7 Ng1 Rd5 Ne2 Rc5
BQn3nq/pQK2n2/1r1Q2qb/r3Pbkp/3b2N1/R1p1Q1N1/2b5/2b3Q1 b - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 h5 g4 b5 f4 bxa4 g5 e5 Ra3 exf4 Rf3 Qd5 Rg3 Qd8 h4 Be7 d3 Bf6 g6 Be5 Rg4 hxg4 h5 Ne7 h6 Bb2 h7 Ng8 Bd2 Bf6 Bc3 Be7 Bf6 Bd6 Bg5 Bf8 Bh6 gxh6 Kd2 Ke7 Kc3 Kf6 e4 c5 b5 g3 g7 a3 b6 a2 d4 a1B+ Kc2 f3 d5 f2 b7 g2 d6 c3 Kd3 c2 Kc4 c1B Kb5 c4 d7 Bd4 Nh3 g1N Qh5 c3 Bg2 f1Q+ Qe2 Nf3 Ng1 Ng5 Rh4 Nc6 b8Q Nce7 Nh3 Qg1 Qc7 Rb8+ Qb7 Kg6 Ka6 f5 Qe3 f4 Nd2 f3 Nf1 f2 Ng3 Nf7 e5 h5 Bf3 Qe8 d8Q Bf5 Qdd7 Nc8 Be4 Qd8 Qd6+ Qf6 Kb5 f1B+ Kc6 Bd3 Kc7 Bc2 Nf2 Qg2 Rf4 Kg5 Ng4 Qh6 Qbb4 Qg1 Ba8 Rb5 Qb1 Ra5 Qb7 Nf6 g8Q+ Qg6 Qh1 Bh6 Qb7 Qg2 Qg7 Re8 h8Q Re6 Qe8 Ng8 Qeb5 Qg1 Qb8 Rf6 Q5b7 Qf1 Qa3 Rb6 Qd6 Bc5 Rc4+ Qf4 Ra4 Bd4 Qf2 Qf3 Ra3 Qd5 Qe1 Qe6 Qg1 Qf6 Qgf8 Qfg7 Qc5 Qh8 Qfd6 Bde3 Qcd4 Bf2 Qd3 Bd4 Qde3+
4Q3/NK1Q2b1/r1pqn2q/kR2PQ1n/3qQ3/2p1rb2/3p1b1Q/b3qB1R b - - 0 1 legal: proof: c4 a5 e4 h5 g4 hxg4 d4 f5 b4 axb4 Ba3 d5 Nd2 e6 Bb2 dxc4 d5 e5 Bd4 exd4 e5 Ra5 Ne4 fxe4 Qc2 Ra3 Qd1 Ra8 Ke2 Kd7 a4 b5 f4 g5 h4 c3 f5 b3 a5 g3 h5 g2 f6 b2 h6 b1Q h7 b4 a6 b3 a7 e3 Kf3 g4+ Kf4 e2 f7 e1Q d6 Kc6 d7 Kb6 Be2 b2 Rh2 g3 Nh3 g1B Ba6 g2 Ra2 Bb7 Bc4 Qd3 Ba6 b1Q Qd2 Bf2 Rb2+ Ka5 Rh1 g1B Ng5 Qbc1 Nf3 Bg7 f8Q Nc6 Qf5 Nf6 Rb1 Qf8 d8Q Qd6 Qe8 Nd8 Bb5 Rf8 h8Q Bc6 Qh2 Nh5+ Kg4 Qde3 Bf1 Ne6 Qdd3 Bd5 Qde4 Qd3 Qd7 Qh6 Rb6 Rfb8 Rb1 Rb6 Rb4 Rg8 a8Q+ Ra6 Qae8 Rh8 Nd2 Qc4 Nb1 Qd3 Na3 Rf8 Qg5 Rf3 Nb5 Re3 Kf5 Ba8 Na7 Qdd1 Qeg4 Bf3 Qe4 c6 Bb5 d3 Ba4 Bh4 Qh8 Bgf2 Bb5 Nd8 Qb7 Re2 Qe8 Bc5 Rb3 Ba3 Bc4 Re3 Rb5+ Ka4 Qgg6 Bf2 Qge6 Bb2 Q6f7 Qd5 Qbd7 Ba1 Qg6 Qb3 Qgf7 d2 Bf1+ Qd4 Qff8 Qa3 Qf6 Nb7 Ke6 Nc5+ Ke7 Qab4 Kd8 Ne6+ Kc8 Qdd6 Qff5 Qbd4 Rb4+ Ka5 Kb7 Bg3 Rb6 Bf2 Rb5+
q2b1n2/1r2R1QR/r1q1pRRK/nR2k3/P1ppN3/Bb4rp/4Q3/1b2q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 d4 gxh4 e5 c6 e6 fxe6 d5 e5 Qg4 e4 Qe2 Qb6 Qd1 Qd8 c4 Kf7 c5 Ra4 Nc3 Ke8 d6 Ra7 Nd5 Ra5 Bb5 cxd5 c6 Ra3 c7 Ra8 Bc6 dxc6 Kd2 Kf7 Ke3 Ke6 Kf4 b5 Kg5 h5 f4 d4 a4 c5 g4 b3 f5+ Ke5 d7 e3 f6 h3 f7 h4 Qd2 h2 Qb2 b4 Nh3 e2 Rb1 e1Q Qd2 b2 Nf2 b3 Qa5 h3 Qb5 Nf6 Rf1 h1Q Qc4 Nc6 Ne4 Ra6 Qe2 Na5 Rf2 Bb7 c8R e6 Rc7 Qa8 d8R Be7 f8Q Rg8+ Kh6 Nd7 g5 Bd5 Re8 Bd8 g6 Qc6 Qe7 Nf8 g7 Qg2 Rf6 Bc4 Ra1 b1R Ba3 b2 Qf7 Qa8 Ree7 Bb3 Qg6 c4 Rb7 Rd1 Rb1 Rd3 Qh7 Rg3 Rbc7 Rh8 g8R Qf3 Rgg7 Rg8 Rgg6 Rg7 Rd1 Rf7 Qg7 b1B Rd2 Qc3 Rb7 Qb4 Rb2 Qb6 Re8 Qc6 Rbe7 Nh7 Rh8 Nf8 Rh7 Qd5 Re8 Rb7 Re7 Qd7 Ra2 Qc6 Rb2 B3c2 Rb4 Bb3 Rb5+
R2r1rQ1/1P2Q3/2p3b1/1N2bppb/n1q2Q2/1n1QpB2/1b6/1Kbr1kNQ b - - 0 1 legal: proof: f4 e5 c4 b5 b4 h5 e4 d6 g4 hxg4 a4 bxc4 b5 a6 Ba3 a5 Bb4 axb4 Ra3 Ra6 Re3 exf4 e5 Ra5 e6 Ra8 Re5 dxe5 h4 Ke7 d4 Kd6 Kd2 Kd5 Kc1 Ke4 e7 Ke3 e8Q Kf2 a5 g5 h5 g3 b6 c6 d5 g2 h6 b3 h7 f3 d6 b2+ Kc2 c3 a6 e4 a7 e3 b7 Na6 d7 Nh6 Qd5 Bg7 Qee5 Nc5 Rh4 Nf5 Qed6 Qg8 d8Q Na4 Ba6 Nd4+ Kd3 c2 Qb6 c1B Q5e5 Nb3 Kc2 Bg4 Qbc5 Rf8 a8Q Bh5 Rc4 Kf1 Qf4 f2 Nc3 b1R Nb5 Bgb2 Qab8 f5 Qd7 Bg6 Qce7 Qd5 Rc3 Qc4 Qd5 Rhg8 h8Q Rd8 Qbd6 Rgf8 Qh1 Ra1 Qg8 Rb1 Ne2+ g1B Qd3 Ra1 Qhe4 Bh2 Ng1+ Ke1 Qh1 f1B Qfe4 Be5 Qf4 Ra2 Kb1 Be2 Rc2 Beh5 Rh2 Bbd4 Rf2 Rd2 Rh2 Rd1 Ra2 Bdb2 Qc2 Qc5 Nd6 Qc3 Be2 Nac5 Qd3 Qc4 Ra8 Na4 Bf3 Kf2 Nb5 Ke1 Qc2 Kf1 Qd3+
3NN3/b1Brq1p1/r1n2N1k/PN1R3p/Q1n1r1pK/1N3b1p/p2Q3n/1q6 b - - 0 1 illegal: No proof kernel
n3r3/1b1n4/r1bN2pb/B3R1Qp/b3QB1b/kqb3Q1/2P1n3/3BB2K b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 c5 d4 cxd4 f4 exf4 e3 dxe3 h5 g6 g4 Bd6 b4 Qb6 h6 Bf8 Rh5 gxh5 Ke2 Ne7 Qd3 Qd6 Bb2 Na6 Nd2 Ng6 Bg2 Qe7 Ngf3 Ne5 Rh1 Qh4 Bf1 Nb8 Bc1 Qd8 Ng1 Ng6 Ke1 Ne7 Nb1 Ng8 Qd5 Qe7 Qd1 Qd8 g5 Ba6 g6 Ke7 g7 Nc6 Nc3 Bc8 Nd5+ Ke8 Ne7 Nb8 Ng6 hxg6 b6 Ke7 b7 f5 h7 a5 b5 d5 b6 Kd6 Ke2 Kc5 Kf3 Kb4 Kg2 a4 Qe2 d4 Qd1 a3 Ne2 f3+ Kg1 d3 Nc3 d2 Bd3 e2 Ba6 e1B Qe2 d1B Qe3 a2 Qd2 a1B Ne4+ Bc3 Qe2 f4 Qf1 f2+ Kg2 f3+ Kh2 Nf6 g8Q Nbd7 b8B Nd5 b7 Bh6 Qh3 f1B Bg3 f2 b8B Bf3 Qge6 Qb6 Nd6 Re8 h8Q Nc7 Qhe5 Bc6 Be2 B8b7 Qg5 Ra6 Bd1 Na8 Bd2 Bfb5 Qe4+ Ka3 Bc7 Qe3 Ba5 Ba4 Bf4 f1N+ Kg2 Bg3 Be1 Bh4 Qhg3 Qb6 Rh2 Qb3 Kg1 Qa2 Re2 Qb3 Qh3 Ng3 Re3 Nf5 Kh1 Nd4 Qhg3 Ne2 Qed5 Ndb6 Re5 Nd7 Qe4
n1n1Q2b/1p1N1K2/1QPNn3/2NQ2b1/3R2b1/1q5b/1r1q1pkN/3q2Bq b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 gxf4 a4 h5 a5 e5 a6 c5 g5 cxd4 a7 Na6 Bh3 Rb8 Bg4 hxg4 Ra3 e4 Rf3 exf3 a8Q Nc5 Qxb8 Na6 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 b3 h4 b2 c4 g3 e4+ Kg4 e5 f5 h5 d3 g6 d2 h6 g2 c5 Kg3 h7 f2 e6 f1Q c6 Nc7+ Ke5 d5 e7 f3 e8Q f2 g7 f4 Rh2 f3 Qa4 d1B Qf7 d4 Qfa2 d3 Qaa7 d2 Qba8 Ne6 Rh6 Be7 Qa1 Bg5 Qb6 Ne7 Nc3 b1Q g8N Qb3 Q8a2 Bd7 Rh4 Nc8 Q1b2 Be2 Qc2 d1Q Rd4 Qfe1 Qaa5 f1N Qd5 Ne3 Nf6 Nc4+ Kf5 Re8 Kg6 f2 h8N Bg4 Nf3 g1B Qe2 Kg2 Na4 Bh2 Nc5 Be5 Bf4 Qh1 Bh2 Qd2 Nf7 Qdd1 Qc7 N4b6 Nd6 Na8 Qb6 Qd2 Kf7 Qdd1 Nh5 Bh8 Nf6 Bh3 Qb4 Qa5 Qb6 Qad2 Bg1 Nf4 Qd3 Re2 Qe4 Bdg4 Qe8 Ne6 Nfd7 Qde3 Qf5 Rb2 Nh2 Qed2 Qd5+
2qb1r2/1p2b1P1/4r1QK/QRq2r2/p5p1/p2RR1N1/b4QBn/2kqQ3 b - - 0 1 legal: proof: d4 f5 c4 c5 e4 g5 f4 Nc6 b4 cxb4 g4 Bh6 a3 bxa3 d5 Bf8 dxc6 fxe4 f5 Nf6 c5 Ng8 Bf4 h6 Nd2 gxf4 Ndf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 Kd2 Kf7 h4 d5 g6+ Kf6 g7 Ke5 f6 Kd4 h5 a5 f7 e5 c7 e3+ Ke2+ Kc3 h6 Kb2 c6 d4 h7 e4 Nf3 a4 Bh3 d3+ Kf1 d2 Kg2 e2 Ne1 f3+ Kg3 f2 Kf4 f1R+ Nf3 e1B Bg2 e3 Rh5 Be6 c8Q e2 c7 Ba2 Qe6 Ne7 Kg5 Ra6 c8R Ng6+ Kh6 Bh4 Ng1 e1Q Ne2 Qf2 Rc3 Qc8 Rd3 Bd8 Ng3 Bfe7 f8Q Nh4 Re5 Qd4 Ree3 Nf3 Qe1 d1Q Rb1+ Kc2 Qff6 Rf8 Qef5 Nh2 Qfa5 Bb6 Qf4 Qdc5 Rb5 Kc1 Qf3 Rf2 Qfe2 R2f5 Q2f2 Bd5 h8Q Ba2 Qg8 Bbd8+ Qe6 Rd6 Qf6 Re6 Qg6
1NQ2qk1/3Pp3/1p2bQ2/pK1B1r1Q/1nn1p2p/1n2N1n1/R2b2N1/bQ6 b - - 0 1 legal: proof: b4 g5 h4 gxh4 e4 f5 c4 fxe4 a3 d5 a4 dxc4 a5 b6 b5 Bh3 a6 Nc6 Ra4 Rb8 Ra1 Rb7 axb7 Bc8 b8N Qd6 Ba3 Qd8 Bc5 Bg7 Ra5 bxa5 b6 Bf8 b7 Bh3 Ne2 Bc8 Bb6 axb6 Ng1 Na7 g4 Kf7 d4 h5 Kd2 c5 Kc3 h3 f4 h4 d5 h2 d6 Bh6 f5 Nc6 g5 Qf8 d7 Nb4 f6 Bg7 Nf3 Nh6 g6+ Kg8 Na3 Nf7 Ne1 Rh5 Nac2 Rf5 Qb1 Ne5 Ng2 Bh8 Rg1 h1N Nce3 Ng3 Bd3 Bg7 Rd1 Bh8 Rd2 Bg7 Ra2 Bh8 Kb2 c3+ Kb3 c4+ Ka4 c2 g7 c1B Kb5 c3 Bf1 c2 f7+ Kh7 Bd3 Bd2 Bc4 c1N Bd5 Nb3 g8Q+ Kh6 Rc2 Nc4 Qg5+ Kh7 Ra2 Bhc3 Qh5+ Kg7 Na6 Ba1 b8Q Bb7 Qc8 Rf6 Be6 Bd5 Nb8 Rf5 Qhd1 Qh8 f8Q+ Kh7 Qf6 Qd8 Bf7 Qf8 Bg6+ Kg8 Qh5 Rf2 Bf5 Bf7 Be6 Rf5+ Bd5 Be6 Qa6 Rf3 Qb7 Rf5 Qc8
2k5/6P1/pp2pnN1/4p2Q/1BNpp1pn/Q1Q4r/1N2nbq1/1KR3rQ b - - 0 1 illegal: No proof kernel
bQ2qkq1/1q1Rr1N1/Q4q2/1bR2Bb1/q4bR1/1r4n1/R1b2KPq/3Qn3 b - - 0 1 legal: proof: h4 f5 b4 e5 d4 exd4 e4 a5 h5 axb4 h6 d3 e5 c5 Nc3 d2+ Ke2 gxh6 Bb2 h5 Ne4 fxe4 Bc3 h4 Bd4 cxd4 a4 b5 c4 d5 f4 h5 f5 h3 c5 h2 c6 b3 a5 d3+ Kf2 b4 a6 b2 a7 b1Q f6 d4 c7 h4 e6 b3 e7 e3+ Kf3 h3 Ne2 b2 Rg1 h1Q Qa4+ Bd7 c8R d1Q Ra3 h2 Qc2 d2 Qc6 d3 Qd5 Nh6 Rc4 Qa1 Rc8 b1Q Qg8 Qa4 Nc1 d1B+ Kg3 d2 Bd3 e2 Bc4 e1B+ Kf4 Nf5 Ra2 Bh4 Qd5 Na6 Rc7 Rb8 a8R Bc2 Kf3 d1B+ Ne2 Rh7 Bd3 Bh6 Qd6 Nb4 Qd4 Ng3 Bf5 Nd3 Qa7 Bf4 Qa6 Qbb2 Rf1 Qab1 Rf2 Qe1 Rc3 h1Q Rc4 Bc1 Ra7 Qh2 Rac7 Bd2 Rg4 Bf4 Rc5 Kf7 Rf1 Q1a1 Rg1 Qf8 Rh1 Bhg5 e8Q+ Kg8 f7+ Kg7 Rc8 Qg8 Rc5 Qbb5 Qe3 Qf6 Qd4 Bc6+ Qd5 Ba8 Rf1 Qd7 Rg1 Rb3 f8Q+ Kh8 Rh1 Qb7 Qb8 Kg7 Rg1 Qec3 Rh1 Qce5 Rf1 Qee8 Rh1 Nb2+ Kf2 Kf8 Nd4 Be2 Rd1 Bb5 Qd7 Re7 Ne6+ Kf7 Ng7 Kf8 Qd5 Nd3+ Kf3 Ne1+ Kf2 Qb4 Qf3 Q4e4 Rd7 Qa4 Qd1
n1RNn3/Q3q1B1/brqn1Q1P/nb1r3b/2N1q1q1/1N4q1/k4b2/2QN1K2 b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 gxf4 a4 h5 d5 e5 g5 e4 Bh3 c6 Be6 cxd5 Ra3 d4 Bg4 hxg4 Rf3 exf3 h4 Ke7 c4 Ke6 e4 f5 h5 b5 h6 d5 a5 d3 a6 b3 g6 b4 g7 d4 c5 d2+ Kf1 b2 e5 Kd5 a7 Kc4 c6 g3 e6 b3 e7 d3 e8N g2+ Kf2 Ba6 c7 Nd7 c8N Qe7 Qf1 d1Q Nf6 Nb6 Nc3 b1N Rh4 b2 Qe1 Kb3 Ne8 d2 Na2 Nc3 Nb4 b1Q Nf6 Nb5 Nbd5 Ka2 Qe6 Qe4 Rh5 Nd6 Rh4 Rb8 Rh5 Na8 Ne8 Nf6 g8Q Rb6 Ng7 Nfe8 Rg5 Qda4 Ba3 d1B Bc1 Qc6 Qg6 Bde2 Ke1 f2+ Kd2 f1N+ Ke1 f3 Ba3 f4 Qf6 Ne3 Ne6 Nec4 Bb2 Na5 Ne3 Rh7 Nd1 f2+ Kd2 f1B Ke1 f3 Rc5 Beb5+ Ne2 g1Q Qgg5 Qgg4 Qc1 Rf7 Nd8 f2+ Kd2 Bg7 Nd4 Bfe2 Nb3 f1Q Rc2 Qfg2 Ke1 Qh2 Rc4 Bf3+ Kf1 Qhg3 Bc3 Bf8 Be5 Rg7 Ba1 Rg5 Be5 Nac7 a8Q Bg7 Bd4 Rd5 Qa7 Na8 Bc3 Rb7 Nb6 Bf8 Na4 Rb6 Nab2 Bg7 Qe6 Bd4 Qf6 Bf2 Be5 Rd3 Rc5 Rd5+ Nc4 Q4h4 Bd4 Bh5 Ba1 Qhg4 Be5 Qcd7 Rc8 Qb7 Qf8 Qbc7 Bg7 Qc6 Qf6
Q2brRR1/4R3/1p1q3q/1R1B4/b1b1rqn1/1QP1N1nn/2b5/K1kbb1Q1 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Nd2 h5 Ndf3 Ke7 Be3 Ke8 Bf2 Ra3 Ne5 Ra8 Kd2 g3 Ng4 gxf2 Ne3 Ra6 g4 Ra3 g5 Ra8 Ng4 hxg4 Kc1 Ke7 Kb2 Kd6 a4 Ke5 e4 d5 h4 f5 c3 d3 a5 g3 h5 f3 h6 Kf4 a6 Ke3 a7 d4 h7 d2 e5 b6 g6 g2 e6 b3 e7 d3 e8Q+ Be7 g7 f4 Ra4 Nd7 Ra6 Nh6 g8Q Ne5 Qgf7 Nf5 Qc4 Bd7 Rh2 Ba4 Qcf7 Qd6 Qff8 Ng4 Qh6 Ng3 Qc2 d1N+ Ka1 d2 Qeh5 b2+ Ka2 b1B+ Ka1 Rhe8 h8R Bd8 Rh3 Re4 Bb5 f1B Qa2 f2 Qb3 Bc4 Re8 f1Q Ra5 Ndf2 Qg7 d1B Ne2 Kd2 Bc6 g1B Rg8 f3 Nd4 Kc1 Bd5 Bbc2 Nf5 Qg2 Qf8 Qh2 Qg6 Rc8 Rh4 Nh3 a8R f2 Rb5 f1Q Ne3 Qff4 Rh7 Bf2 Re7 Qh6 Qf3 Be1 Qh1 Qf2 Qg1 Qff4 Qe8 Bc7 Qc6 Re8 Rc8 Bd8 Qa8 Qff8 Rc6 Qdf4 Rf6 Qd6 Rff7 Qhf4 Rf5 Q8h6 Rff8
3b1bRq/1kQQ2n1/3B1bq1/4B1rP/4nbn1/6QK/2b1r2p/N2BqQ1n b - - 0 1 illegal: No possible last move
K1b1nn2/nB3B2/1Pq1r2b/k1b3nb/1B2rB2/NQ1bQ3/Rp5Q/1q5q b - - 0 1 illegal: No possible last move
5R1R/n2Rr1PK/1qqbqb2/2Q1n1B1/2r3k1/pN1Q3Q/R1b2qn1/b4b2 b - - 0 1 legal: proof: g4 g5 a4 h5 d4 c5 f4 cxd4 a5 gxf4 g5 e5 a6 e4 Nd2 bxa6 Ndf3 exf3 Bg2 a5 Bh3 a4 Bg4 hxg4 Kf2 Ke7 h4 Ke6 e4 d5 c4 a5 b4 f5 b5 d3 h5 d2 b6 d4 e5 a3 c5 d3 c6 g3+ Kf1 f2 Kg2 f1N Kf3 a2 g6 a4 h6 a3 h7 g2 c7 Ne7 g7 Nd7 b7 Nc6 b8R Ra4 Rbb1 Rc4 Rb8 Na7 Qa4 d1Q+ Ne2 g1B Be3 d2 Qb4 Qb3 Rh5 d1Q Qb5 Qc1 Qb7 Bd6 Qa8 Re8 h8R Re7 Rb1 a1B Rb2 Qe8 Qc6 Qb6 Bd2 Bd4 Qc5 Ne3 Ra2 Ng2 Rh2 Ba6 c8Q Bb5 Rf8 Ba4 Rhh8 Bc2 Rb7 Qh1 Nc1 Bdb2 Kf2 f3 Kg3 f4+ Kg4 f2 Kg5 f1B Nb3 f3 Bc1 f2 Rc7 Qg1 Kh6 Qc6 Bg5 Qf7 Qa6 Kf5 e6+ Ne5 Rd7 Kg4 Qc8 Nd3 Kh7 Bf6 Qd5 Ne5+ Qd3 Be2 Qc7 f1Q Qa5 Qff2 Qc5 Re8 e7 Qe6 Qa5 Bf1 Qc5 Rc8 e8Q Rc7 Qc8 Rb7 Qd5 Qfb6 Qc5 Qf2 Rdd8 Re7 Rd7 Qcb7 Qe3 Qbf3 Qcc5 Qfc6 Qh3+
1nR3QQ/q5q1/1Q2bp2/3r2Rn/P1rb1q1r/Q2N4/1n4Rn/1qk1B1bK b - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 b6 e4 Bh3 axb6 Nd2 b5 Bg4 hxg4 Ndf3 exf3 Be3 b4 Bd2 Ra5 Bc1 Ra8 Kf1 Ke7 a4 Ke6 h4 Kd5 e4+ Kc4 c3 b5 h5 d5 h6 d3 g6 d2 g7 Kd3 h7 g3 c4 b3 e5 b4 c5 g2+ Kf2 b2 e6 b1Q e7 b3 e8R b2 c6 d4 c7 Qe7 Qe1 Kc2 Ne2 g1B+ Kf1 d1N Rd8 f2 Kg2 f1N Nc3 d3 Qe4 Be6 c8Q Qa7 Qcc4 Nh2 Qe2+ d2 Qe1 f3+ Kg3 f2 Kg2 Nf6 g8Q Bg7 Qd4 Nh5 Ra2 Qa1 Qb6 Bd4 Ne4 Kb1 Qe3 Kc2 Ra3 b1Q Nc5 Nb2 Rc8 d1R Bd2 f6 Bb4 Rd3 Qf3 Kc1 Be1 Rc3 Rb3 Rc4 Rb5 Qg6+ Qg3 Qab1 Ra5 Qgg7 Nd3+ Kd1 Rg5 Kc2 Qf7 Rd8 h8Q Rd5 Qfg8 Kd1 Nb4 Kc1 Qgd6 Ng4 Rh4 f1Q+ Kh1 Nh2 Rhg4 Qf4 Rg2 Qac7 Qe7 Raa5 Na6 Qa7 Qa3 Rab5 Nc5 Rb3 Qc7 Rh3 Qb6 Rh4 Nd3+
6br/2Bknr1B/q1Bq4/n4nQn/8/QPR2pn1/3b1nqQ/1KQ2Nq1 b - - 0 1 legal: proof: g4 g5 a4 h5 d4 c5 f4 cxd4 a5 gxf4 g5 e5 a6 e4 Nd2 bxa6 Ra3 a5 Rg3 a4 Ndf3 exf3 Rg4 hxg4 Kd2 d5 c4 f5 Kc2 a5 e4 g3 h4 f2 c5 a3 g6 f3 b3 a4 h5 f4 e5 d3+ Kb1 d4 h6 g2 e6 d2 h7 a2+ Kb2 a1Q+ Kc2 a3 g7 a2 c6 Ra7 e7 Qb2+ Kd3 a1Q c7 Be6 c8B Qa6+ Ke4 d3 Nh3 g1Q Rh2 Qdd6 Bb7 Kd7 Ng5 Nc6 Rh3 Na5 Bg2 f1N e8Q+ Kc7 Ba8 f2 Bc6 Ne7 g8Q Bh6 Qef8 Qg7 Qc2 d1N Nf3 d2 Nh2 Nde3 Qc3 Qg4 Qg5 d1N Qc4 N3f5 Rc3 Bd5+ Kd3 Bg8+ Kc2 N1g3 Bge4 f1N Kb1 f3 Bf4 Nh5 Bd3 N1g3 Nf1 Nf2 Qc5 Qc8 Qa3 Qa6 Qc1 Rb7 Qa8 Qh3 Qa7 Qhg2 Qc5 Kc8 Q5a3 Qd4 Bc7 Qd6 Qg4 Bd2 Qg5 Bf7 Bd5 Kd7 Bc2 Rf8 h8Q Bg8 Qe5 Rbb8 Qef4 Rbe8 Qfh4 Rf7 Qh2 Bh7 Bde4 Rh8 Ba8 Bg8 Bce4 Ne3 Bh7 Ne3f5 Bc6+
QN1q4/Q2n1kpr/n1r4Q/2Pq1B2/1nbQ3N/2R3bb/5pN1/2nK2nq b - - 0 1 legal: proof: b4 c5 a4 e5 f4 h5 g4 hxg4 d4 cxd4 f5 a5 Ra2 axb4 e4 f6 Ra3 Nh6 Rf3 Ng8 Rf4 exf4 e5 b3 e6 Rh7 Ba3 Rh5 Bd6 Rh8 Be5 fxe5 c4 d5 h4 b5 a5 g3 e7 b4 f6 f3 a6 d3 a7 g2 c5 d2+ Kf2 e4 h5 b2 h6 d4 h7 b3 Qe2 d1B Ke1 e3 Nh3 g1N Nf2 d3 Nc3 b1Q Nh3 b2 Na4 Kf7 e8N Bb3+ Qd1 e2 Nb6 d2+ Kf2 e1N Bd3 Nc2 Nf4 Bc4 Bf5 Nb4 Nd7 N8a6 Rh3 Bd6 Ng2 Bg3+ Ke3 f2 Nb8 Qa2 Qa1 b1N Qd4 d1Q Nd6+ Kf8 f7 Nd2 Qf6 Nb3 Qd4 Bh2 Rf3 Nc1 Rg3 Qa1 Rf3 Qb3+ Kd2 Bg3 Rc3 Qba2+ Kd1 Nf6 Ne4 Q1b1 Nd2 Nd7 Nf3 Qe4 Nfh4 Qb7 Nf4 Qh1 Nfg2 Ke7 Be4 Ke6 f8Q Qb3+ Bc2 Qa2 Qfd6+ Kf7 Qb6 Qb3 Nc6 Rb8 a8Q Qa2 Qc7 Rb6 Nb8 Re6 Bf5 Rc6 Qca7 Qb3+ Rc2 Qf3+ Re2 Qd5 Re3 Rg8 h8Q Re8 Qh6 Rh8 Qb6 Rh7 Rc3 Nf8 Bb1 Bh3 Qba7+ Nd7 Bf5
NnB3b1/PbN3Np/Q1r4b/6nq/b2q3r/Qb1q4/kp6/1NR1K1Qr b - - 0 1 legal: proof: b4 a5 h4 axb4 e4 e5 d4 c5 a4 cxd4 Bb2 g5 Ra3 gxh4 Re3 d3 Bd4 exd4 e5 f6 e6 Nh6 Re4 Ng8 Re5 fxe5 f4 Ke7 c4 Kd6 g4 Kc5 f5 b5 g5 d5 g6 d2+ Ke2 b3 e7 Kb4 e8Q h3 a5 h2 c5 b2 g7 d3+ Kf2 d4 a6 e4 f6 e3+ Kf3 e2 Kf2 e1R f7 Be6 c6 Nf6 g8N Ne4+ Kf3 Ng5+ Kf2 Bh6 Na3 b1Q Qe2 Kb3 f8Q d1B c7 d2 c8N d3 Q8h5 b4 Qhe8 Ka2 Nf6 b3 Nf3 b2 Nh4 Bdb3 Nb6 d1Q Nfd5 d2 Nc7 Qbd3 Nb1 Bg8 Q8e3 Q8d4 Nf5 Ba4 Rg1 h1B Bh3 Bb7 Ng7 Ra7 Qf1 Qh5 Nba8 d1B Bc8 Bdb3 Qe2 Rd1 Rh1 Rg1 Qf1 Rg4 Ke1 Rh4 Qeg1 Qdf3 Qe3 B7d5 Nce8 Rf7 a7 Bb7 Bh3 Qf5 Qa6 Qfd3 Bf5 Rf6 Kf2 Bgf7 Rc1 Rh1 Qc5 Rf8 Nec7 Bg8 Qe7 Rh4 Ke1 Rc6 Bc8 Rf2 Qc5 Rfh2 Qg1 Rh1 Qa3#
Rq1n2N1/2p3K1/1k1n1rQQ/n1r2bn1/qPb4Q/2p2B1q/Qb1r1B2/7B b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 c5 bxa4 c6 g5 Ra2 g4 Ra1 dxc6 Na3 c5 Nb1 c4 b4 h6 Ra3 h5 Rf3 Qg5 Na3 Qd8 Nc2 Bc5 Ne3 gxf3 g4 Be7 g5 Bf8 Ng4 hxg4 Kf2 Kd7 h4 Kc6 e4 a5 d4 f5 g6 a3 d5+ Kb6 d6 a4 g7 g3+ Ke1 f2+ Ke2 a2 Kf3 a1Q e5 g2 d7 a3 e6 a2 e7 Rh5 e8Q Nc6 Ne2 g1N+ Kg2 f3+ Kg3 f4+ Kg4 Nge7 g8B Nh3 Bh7 Rc5 h5 Nf5 h6 Nd6 Bg2 f1Q Ng3 f2 Ne4 f3 Nf6 Ng5 Kh5 Bg7 Ng8 Bb2 Kg6 c3 Qc2 Qd3+ Qe4 f1R Be3 f2 Bf3 Ra6 Qe2 Rd1 Kg7 f1B Bf2 Rd2 Qg6 Qf5 Qee6 Bc4 Qe2 Qe8 d8Q Qh3 Rc1 Bf5 Qee6 Nge4 Qh4 Ng5 Re1 Qd8 Qd5 Qb8 Re8 Qd1 Bh1 a1N Qg2 Qa7 Ra8 Qb8 Qd5 Qa4 Qde6 Be2 Qa2 Bc4 Bd4 Nde4 Qa3 Bfe6 Qf5 Nd8 Qa2 Kb5 Bf2 Nb3 Bg6 Bd7 h7 Na5 h8Q Rf6 Q8h6 Nd6 Bh5 Kb6 Qfg6 Bf5 B5f3
2Qbb3/2B1Q1q1/1N3b2/P1b3Q1/N1p1krb1/2nNp1q1/r1Qr1bn1/5KR1 b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 d5 c4 dxc4 a4 f5 Ra3 fxe4 f5 Qd7 Rh3 Qd8 Rf3 h6 Rf4 gxf4 g5 h5 Bh3 Qd5 Bg4 hxg4 Qb3 Qd3 Qd1 Qd8 h4 Kf7 d4 b5 d5 e5 d6 c5 f6 Ke6 g6 Kf5 f7 e3 h5 e4 h6 g3 d7 c3 h7 e2 g7 c4 Qb3 g2 Kf2 e1B+ Ke2 e3 Bd2 c2 Nc3 c1B Rh3 f3+ Kd1 f2 Ke2 f1R Nf3 g1B Rh6 Nc6 Nd5 Nf6 g8Q Qc7 d8N Ne4 Qd3 b3 Nb6 b4 Qd6 b2 Nb7 b1B Qd8 b3 Nc5 b2 Na6 Qg3 Rh2 Ne7 Qg7 Bgf2 Rh4 Nd5 Qc3 Nf4+ Kd1 Ng2 Ke2 Bc5 Qe7 Rd8 h8Q Bc2 Qhd4 b1Q Ne5 Qa1 Rg4 Bb2 Qd5 Bd7 Qb3 Be8 Ba5 Bbc3 Nd3+ Be5 Qdb7 Bf6 f8Q Bc3 Qeg7 Rd4 Qd6 Bd8 Qde7 Rd1 Qb1 Rd2+ Kf1 Bd1 Qc2 Bb2 Rg6 Nc3 Qc6 Rf4 Qc8+ Bd7 Qg5+ Ke4 Qf8 Be8 Qg7 Nb1 Qh7 Bbf6 Qe7+ Qe5 Rg7 Nc3 Rg6 Bg4 Rg7 Bd6 Nac5+ Kd4 Nbd7 Ra6 Bc7 Ra7 Nb6 Ra5 Ncd7 Ke4 Rg6 Bc5 Rg8 Rb5 a5 Rb2 Na4 Ra2 Ndb6 Rf3 Rh8 Rf5 Rh1 Rf4 Qeg7 Qe7 Rg1 Qf8 Qgd7 Qg7 Qe7+
3R2nk/bRR2n2/P7/B2Qn3/r3Q3/Nrrb1pb1/QqpR4/rq4bK b - - 0 1 legal: proof: g4 g5 b4 h5 c4 d5 f4 gxf4 b5 e5 g5 f3 Bh3 dxc4 Bg4 hxg4 Nc3 a6 Nd5 axb5 Nf4 exf4 Kf2 b4 Kf1 Nf6 Ke1 Ng8 Kf2 Rh4 d4 Ra3 e4 f5 e5 Kf7 e6+ Kg7 e7 b5 e8Q c5 d5 g3+ Kf1 f2 Kg2 f1N h3 b3 g6 b4 d6 c3 d7 b2 Qd4+ Nf6 Qd3 b1R Qee4 c4 Nf3 b3 Qd6 b2 Ne1 Nd2 Qf3 Nc6 Qf2 Qb6 d8Q Nf3 Rf1 Ba6 Qe3 Ng5 Qed2 Nf7 Qb4 Bc5 Nc2 Nce5 Rf2 Rg4 Kg1 g2 h4 Qb7 Qe2 Ba7 Qa4 Qb5 Qd5 Qb6 Kh2 g1B+ Kh1 Rg3 h5 Kg8 h6 Rf3 Nd4 c2 Qaa5 Rg3 Bd2 c1B Qd3 c3 Nb5 c2 Q3e4 Qb8 Bb4 Rgc3 Qa4 Bce3 Rd2 Bef2 Qab3 Ra5 a4 Bg3 Na3 Bd3 Qa2 Re1 Rad1 b1R Rg2 Ra1 Rb1 Ra6 Rb2 Reb1 a5 Qb7 Bd6 Qb5 Bc7 Qb8 Rb5 Rb4 Rc5 Rab6 a6 Ra4 Rh2 Rb2 Ba5 Qb4 Nc4 Qa3 Rc6 Rbb3 Rc7 Qb2 Na3 f3 Rf2 f4 Rg2 f2 g7 f1Q Rb7 f3 Rd2 Qfc1 Rc7 Ng6 Rb7 Kh7 g8R Qcb1 Rc8 Ng8 Rcc7 Kh8 Qde6 Nge5 h7 Kg7 h8R Nf6 Rf8 Ng8 Q6d5 Kh8 Rd8
1Qrq4/1q1P2nK/2N1b2b/Rn5q/BQ6/n2p2Qb/1Rq3p1/Qrb1R1k1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 exf6 Nc3 f5 Nb1 f4 c4 d6 Be3 Nd7 d5 Nb8 Bd4 Ra4 Nc3 Ra6 Ne4 cxd4 c5 Ra7 c6 Ra8 Nc5 dxc5 Kd2 Ke7 Kd3 Kd6 Ke4 b5 h4 f5+ Kd3 Ke5 a4 g5 e4 f3 a5 Kf4 a6 Kg3 d6 Kf2 c7 f4 e5 c4+ Ke4 d3 h5 g3 h6 b3 h7 g2 e6 b4 Kf5 c3 Kg6 b2 e7 b1Q e8Q c2 a7 c1B Ra4 b3 Qb5 b2 Ra3 g4 Qc6 g3 Rh3 Na6 Ra1 Nf6 Qda4 Be6 c8Q Bh6 d7 Ne8 Q8b7 Nac7 Ra3 Nb5 Qd5 Rb8 a8Q Ng7 Qd1 Qc2 Ra5 b1N Qe5 N1a3 Ne2 g1Q Nd4 Qh1 Nc6 Kg1 Rh2 f2 Be2+ f1Q Rf2 Rf8 h8R f3 Kh7 Qh5 Qg5 Rc8 Qab8 Rf5 Rh2 f2 Re8 Rf4 Qe1 Rb4 Bd1 Rb1 Qc3 Qe1 Qa1 f1B Qg4 Qef2 Re7 Qb2 Ba4 Qfc2 Q7c7 Bh3 Qb4 Qbb3 Re2 g2 Qg3 Qcc4 Rb2 Qcc2 Re8 Qbd5 Ne7 Qb7 Nc6 Bc4 Re2 Bce6 Re1#
rBq4n/1p1QQN2/5b2/1n2q2Q/2rb2KN/1pRk1N2/Nbb1qPn1/4q3 b - - 0 1 illegal: No possible last move
n2KNn2/1P2r2B/n3kB1B/3n1b1p/Q4b2/pb1Rb2n/2n4r/BQ1q2Q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 e5 g6 h5 f6 h6 fxe5 Bf4 e4 Bd2 Bb7 Bc1 Bc8 b4 Nf6 g4 Kf7 g5 Ng8 Rh5 Ke8 Nc3 Qb6 Nd5 Qc7 Nf4 Qa5 Rh1 Qd8 Nh5 Kf7 Ra3 Ke8 Rg3 gxh5 g6 Nf6 g7 Ng8 Rg6 hxg6 Ke2 Kf7 c4 a5 f4 e5 f5 d5 c5 g5 c6 a3 b5 a4 c7 g4 f6 e3 Kd3 e2 h7 e1N+ Kd2 a2 b6 a1B b7 e4 Ba6 g3 Be2 g2 Bf3 d3 Ke3 d4+ Kf4 e3 Kg5 d2 Be2 d3 Rh3 Na6 Bf3 e2 Be4 Bd6 Qc2 d1B Bg6+ Ke6 Nf3 g1N Nd2 Ng2 Nc4 e1N Na5 d2 Nc6 Bd4 Qb1 Ne7 f7 Bb3 g8Q d1N Nb4 Nb2 Bf4 Nc4 Be5 Nge3 Nd5 N1c2 Nf6 N3d5 Ne8 Ncb6 Bf6 a3 Qg7 Rf8 h8B Bd7 Be4 Ng6 c8Q Bb8 Qc7 Be3+ Qf4 Rg8 Bd3 Nf8 Bh7 Bd6 Rf3 Rc8 Rh3 Rc7 Rf3 Na8 Rg3 Bc1 Rd3 Be3 Qg6 Bc8 Bg7 Re7 Ba1+ Kd7 Bgf6 Nh3+ Kf5 Bc7 Qgg1 Rg2 Qh4 Bcf4 Qg4 Ng6 f8B Rh2 Bh6 Nf8 Q4g2 Qa5 Qe4 Qd2 Qc4 Qd1 Qd4 Re4 Qc4 Ne6 Kg6 Nf8+ Kf7 Re5 Ng7 Kd6 Qa4 Be6+ Ke8 Bf5+ Kd8 Re7 Ne8+ Ke6 Bae5 Qd2 Bd4 Qd1 Ba1
1q1b2Kn/1r5B/Q1b5/1R1P3p/QBNB4/B6n/Qrppn1k1/q1bqb3 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 g5 a4 gxh4 d5 bxa4 Ke2 f5 Ke1 fxe4 b4 d6 c4 Qc7 Nd2 Bh6 Ndf3 Bf8 Nd4 Qd8 Ra3 Kd7 Rc3 cxd4 c5 Ke8 c6 Qc7 Rc4 Qd8 Rc5 dxc5 Kd2 Kf7 g4 Kg6 f4 a5 f5+ Kg5 b5 Kf4 f6 Kg3 b6 h5 b7 e5 g5 c4 f7 c3+ Ke2 h3 g6 c2 c7 d3+ Ke3 h2 g7 a3 Be2 a2 Qf1 a1Q Bb2 a4 Bf3 d2 Qe2 a3 Bg2 a2 Bc3 Ra7 Ba5 Nh6 Qd1 Be7 f8B Nf7 Bb6 Nc6 b8B Bb7 c8Q Nd4 Qd7 Ne2 Qf1 Bc6 Bc5 Rb7 Bbd6 Qb8 Bd4 Bd8 Bb4 Qd1 Bh3 a1B Bf5 Bb2 Nf3 Bc1 Bh7 Rg8 Ba3 Nh8 Bfb4 Rf8 Qe8 Rf6 g8Q+ Rg6 Qe1+ Kg2 Qge6 Rg8 Rf1 h1N Qh4 Nf2 Qef6 Bd7 Qa6 Bc6 Qhe7 Rg7 Q7d7 Rb5 Qda7 Rgb7 Re1 Nh3 Rh1 Bb2 Qd7 Qa1 Rb1 Bc1 Qa8 R7b6 Qda7 Rb7 Qa4 R5b6 Q7a6 Rb5 Ng5 R5b6 Nf7 Rb5 Nd6 R5b6 Bbc3 Rb2 Bcb4 Ra2 Qb3 Rb6 Qc8 Neg1 Qaa4 Rb5 Qca6 Rb6 Qbc4 Rb7 Rb3 Rb2 Bbc5 Nf3 Ke2 e3 Kd3 e2 Ke4 e1Q+ Kf5 e4 Ke6 e3 Rb5 e2 Qa2 Nfg1 Nc4 Qd1 Be7 e1B Beb4 Bc7 Kf6 Ne2 Kg7 Bd8+ Kg8
nBBb4/2QBQ1r1/4Q3/R1p2rpK/3qbNp1/4q1r1/P2bn1kn/2rQ4 b - - 0 1 legal: proof: g4 d5 d4 a5 c4 dxc4 b4 axb4 e4 h5 d5 hxg4 Nd2 e5 Ndf3 f6 Nd4 exd4 e5 f5 Rb1 Bc5 Rb3 Be7 Re3 Bf8 Re4 fxe4 Ke2 Kd7 f4 g5 h4 c5 d6 Ke6 h5 Kd5 f5 b5 f6 e3 f7 Ke4 d7 b3 e6 b2 h6 b1N h7 b4 e7 d3+ Ke1 d2+ Ke2 b3 e8B b2 Qe1 d1R Qd2 c3 Qc2+ Rd3 Qd2 c2 Bh3 Ne7 Qd1 Nf5 Bd2 c1Q Qc2 Na6 Qc3 Nh4 Qf6 Rg8 h8Q Bb7 Qhg7 Be7 f8Q Nf3 Bg2 Nc7 Rh8 Rc8 Ba5 Na8 Nh3 Bd5 Qgf7 Rg7 Bc7 Ra3 Bf1 Nh2 Bb8 Rc6 Qh6 Rf6 Nf4 Rf5 Qh7 Qc3 Qe6+ Qe5 Rg8 Bf6 Qfe7 Nc3+ Ke1 Kf3 Ba6 e2 Kd2 b1R Kd3 e1B Bc8 Rc1 Rh8 Qdc7 d8Q Bd2 Bed7 Qcd6 Qc7 Qe1 Qh3+ Kf2 Qf3+ Kg1 Qd1 Ne2+ Qb3 Qe5 Rh3 Bg2 Rf3 Qb2 Ke4 Bh1 Qd1 Rac3 Nd5 Kg2 Rf4 Rg3 Rf3 Qf1 Ra3 Qf2 Ra5 Qa1 Qf8 Bd8 Qfe7 Rff7 Nf6 Qe3+ Kf5 Rh7 Kg6 Qad4 Nh5 Rhg7+ Kh6 Rf5 Nf4+ Kf2 Qe7d6 Be4 Qde7 Kf3 Kh5 Kf2 Nh3+ Kg2 Nf4+
7Q/N1K2n2/2bPB3/Q1r1Qp2/r2pb2Q/2R4N/1r1q1pqk/1N1qrnb1 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 d5 g5 Ra2 gxh4 c4 b3 Rd2 d6 Rd4 Ra5 Ba3 cxd4 c5 Ra7 c6 Ra8 Bc5 dxc5 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ Kg3 d6 f5 a5 b5 c7 h5 a6 b2 a7 c4 Qb3+ c3 Na3 b1B Qd5 c2 Nf3 c1R Qc5 b4 Rg1 h3 Bc4 h2 Re1 h1R Re2 b3 Ra2 h4 Bb5 h3 Kd5 h2 e5 b2 e6 Bd7 c8N Rhe1 e7 h1Q e8Q Na6 Qe6 Qg5 Qc3 Bh6 Qee3 Nc5 Qe5 Nb3 Ng1+ Kh2 Nh3 Nd2 Bc4 Nf1 Qa5 Be4+ Kc5 b1Q g4+ Qg2 Rc2 Bb5 Kb6 Bbc6+ Kc7 Qb3 Rc3 Qd1 Nb1 Rh7+ Qg7 f3 Be6 Q5d2 g5 f2 g6 Bf4 Qe7 Nh6 g7 Nf7 g8Q Rc2 Qg4 Rb2 Qgh4 Rh8 Bd5 Re8 Qef6 Re5 Be6 Rc5 Qg7 Rab8 a8Q R8b4 Qb8 Ra4 Na7 Kh1 Qbh8 Bh2 Nc8 Bg1 Na7 Kh2 Qe5+
6B1/KPpr4/1rBbp2B/2RQ1Qr1/k1Bn1q2/r4b2/pq5b/QNn4b b - - 0 1 legal: proof: d4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 e5 h6 gxh6 d5 h5 Ra3 h4 Ra2 Qd6 Ra1 Qd8 e4 Bg7 b4 Qf6 Nd2 Bd7 Ndf3 Qd8 Nd4 exd4 e5 Ke7 e6 Bf8 Ra2 Kd6 e7 Bc8 Re2 Kd7 Re6 fxe6 Ke2 h5 f4 a5 g4 c3 Kd3 h3 Kc4 d3 Kc5 c2 g5 h4 g6 d2 f5 h2 f6 a3 d6 h3 g7 a4 b5 a2 f7 a1Q b6 a3 Bd3 a2 Qg4 d1R Qg6 Nc6 Bd2 c1B Qg2 Nh6 g8B Bb7 Qf3 Qb2 Qe3 Nf5 Qd4 Ng3 Qb4 Ra3 Qc3 Ne2 Bc4 Ncd4 Bh6 Bf4 Nf3 Nc1 Nd2 Bf3 b7 Be5 Rg1 h1R Nb1 h2 Rg5 Rh7 Qe1 Rg1 Rh5 h1B Rg5 Bfg7 f8Q Bh2 Qf5 Qf8 Rh5 Bge5 e8B+ Kd8 Bc6 Rg5 Qg1 Rdd3 Qd1 Rdb3 Qe1 Qf6 d7 Rb6 Qc3 Qg2 Qa1 Qb2 Ba6 Ke7 Kc4 Kd6 d8Q+ Rd7 Bab5 Qd2 Ba6 Qf4 Bab5 Rd3 Kb4 Qg7 Ka5 Kc5 Bc4 Ra3+ Ba4 Rb2 Ka6 Kb4 Ka7 Ka5 Bc6 Rb6 Qd3 Bd6 Qf6 Rgb5 Qff5 Ka4 Qd5 Qg2 Q3f5 Qb2 Rh3 Bh5 Rb3 B5f3 Rb4+ Ka5 Rb3 Rc5 Rb5+ Ka4 Qde4 Re5 Qd5 Nc2 Qfe4 Rg5 Qef5 Nd4 Rc5+
kR2Qr2/p3Qq2/2NqnB2/1qbnpr2/1Q6/6PQ/1p2bB2/b2q1bKB b - - 0 1 illegal: No possible last move
2R1N2k/1bpnR3/2R3pb/PKnr1B1q/5n2/3p1q2/1pb2Q1R/1rn3QQ b - - 0 1 legal: proof: c4 a5 e4 h5 g4 hxg4 d4 f5 b4 axb4 Ba3 d5 Nd2 e6 Bb2 dxc4 d5 e5 Bd4 exd4 e5 Ra5 Ne4 fxe4 Qc2 Ra3 Qd1 Ra8 Ke2 Kf7 a4 b5 h4 c3 f4 g6 d6 Kg7 f5 g3 e6 e3 Kd3 g2 e7 e2 e8Q e1Q d7 b3 h5 c2 a5 b4 Kc4 c1N Rh2 b2 Qee2 b1B Nh3 g1N Kb5 b3 Ng5 b2 Nf7 d3 Bh3 Qf1 Qf2 Nge2 Nd6 Qg5 d8R Nf6 Re8 Nf4 h6+ Kg8 Re2 Ne4 Ne8 Nc5 f6 Qh5 Re7 Bb7 Bf5 Nbd7 f7+ Kh7 Qg4 Rd8 Qgg1 Bc2 Ra4 Qfd1 Rc4 Qdf3 Rc3 Bg7 Rc4 Rf8 Rc3 Kh8 h7 Bh6 Rc4 Na4 Rc6 Nac5 Rg2 Rg8 Rh2 Rg7 f8Q+ Rg8 Qf7 Rf8 Qd5 Rf6 Qe4 Re6 Qee1 Re4 Qh1 Ra4 Qef1 Ra1 Qf1g1 Rb1 Bg4 Nf8 Bf5 Rd5 Nd6 Nfd7 Re4 Kg7 h8R Nh3 Rc8 Nf4 Ne8+ Kh8 Re7
5KQ1/P1Nrp3/rR3Qr1/b2q4/3R2kp/2npqR1R/3B1r1p/1Q1q1b1n b - - 0 1 illegal: No possible last move
1B1r2Q1/b1rpn1bK/5b2/3p4/PRN1p3/n4q2/B1QpbpQ1/B1k2Bb1 b - - 0 1 illegal: No proof kernel
1kQKR2b/p1N1P2p/4Bp1R/2r1p1q1/2p3Q1/2r1bb2/n1q4R/2Q2nbR b - - 0 1 legal: proof: h4 d5 f4 b5 a4 bxa4 e4 g5 c4 gxh4 f5 dxc4 e5 f6 b3 Be6 Bb2 Bd7 e6 Bc8 Be5 fxe5 f6 Ba6 Nc3 Bc8 Ne4 Qd5 f7+ Kd8 Nf6 exf6 Qe2 Ke7 Qd1 Qd8 Ra3 Kd6 Kf2 c5 Ke3 Kc7 Ke4 c3 Kf5 c2 g4 c1B d4 h3 g5 c4 g6 h2 d5 Bc5 f8R Bb4 g7 Bb7 Bh3 Nc6 Nf3 Rb8 Re1 h1Q Ng5 Qh2 d6+ Kc8 Ra2 a3 d7+ Kc7 Rg2 a2 Rh1 a1B e7 Nh6+ Ke6 Ng4 g8R Bc5 b4 Ne3 b5 Nf1 Rg7 Bad4 Rg6 Nb4 Kf7 Bf4 Qc1 Bf3 b6+ Kb7 Rfg8 Bg1 Ne6 Bh6 Rf2 Bg7 Rh6 Qf4 Rfh2 Na2 Rf8 Qc8 d8Q Bce3 Qd4 Qg5 Bf5 Qd8 Qg4 Qd2 Rg8 Rd8 Rf8 Rd3 Ke8 Rc3 Rg8 Kc6 b7 Qc2 Rf8 Rg8 b8Q Bh8 Qa8+ Kb6 Kd7 Ka6 Rc8 Rd8+ Kc7 Rd5 Re8 Rc5+ Kd8 Kb6 Qb8+ Ka6 Qc8+ Kb6 Nc7 Kc6 Qd7+ Kb7 Be6 Kb8 Qc8#
1qr1B2n/3B1P1q/7q/bn1k3b/4RN2/2rN1pB1/1N1n2r1/2b1KBnB b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 e5 a4 a5 Nd2 g5 Nb1 b5 axb5 axb4 Rh3 gxh4 Rh2 Bh6 Rh1 Bf8 e4 f6 f4 Bc5 Qg4 Be7 f5 Bc5 Qf4 Bf8 Ra6 exf4 e5 Be7 e6 Bd6 Rc6 Be7 Rc5 Bf8 Re5 fxe5 c4 Ke7 g4 Kd6 g5 h5 b6 e4 g6 b3 e7 e3 e8B d3 b7 d2+ Ke2 d1R g7 b2 f6 h3 c5+ Kd5 c6 h2 f7 h4 c7 h3 Bd2 f3+ Kd3 e2 Bg2 e1B Ke3 Ne7 g8B Na6 b8N Rc1 Nc6 Ng6 Ne2 Ba3 Rg1 h1Q Nb8 h2 Bh7 Rg8 Rf1 Nh8 Bb4 Rc3+ Bd3 d6 Ba5 Bg4 c8B Bh5 Bgh3 Nc7 Nd7 Nb5 Nd4 Rg2 Nd2 b1N Bb4 Bc1 Nc5 Qc7 Bcd7 Rc8 Ba5 Qb8 Bc7 Qg1+ Rf2 h1Q Nde6 Qgh2 Bg4 Qh4 Bh3 Qf6 Re2 Qg6 Bd8 Qh7 Bh4 Qh2 Bg3 Qh1 Kf4 Qh2 Re3 Qh1 Nc4 Nd2 Bg4 Qh4 Re4 Qf6+ Ke3 Qfh6+ Bf4 Bh4 Nb2 Bd8 Bh3 Ba5 Nd1 Nd4 Nb2 Ne2 Bg4 Ng1 Bh3 Rg8 Kf2 Rg2+ Ke1 Rg4 Ng7 Nf1 Re5+ Kd4 Bg6 d5 Bg2 Rg5 Bh1 Rg2 Nba4 Kc4 Re2 d4 Nge6 Kd5 Bb1 d3 Bg3 d2+ Kd1 Bg6 Nb2 Bh5 Bd3 Ra3 Re4 Rb3 Kc2 d1N+ Be2 Nd2 Bf1 Nc3 Ncd3 Nb5+ Kd1 Ra3 Ke1 Rac3 Nef4+
1n3B1N/P4qR1/1pr1k2K/n2q1R2/RRrR4/2p2b1p/2bn3R/2Q1qb2 b - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 e5 a3 exf4 g3 a5 Nc3 axb4 Ne4 b3 Ng5 Ra5 Bb2 Ra4 Bc1 Ra8 g4 g6 Ne6 g5 Bh3 f3 Nf4 gxf4 g5 Bb4 Bf5 Bf8 h4 Nf6 g6 Bh6 Bb1 Ng8 Ba2 Bg5 hxg5 bxa2 Kf2 Kd7 d4 f5 e4 c5 d5 h5 d6 h4 a4 b6 g7 c3 g6 c2 e5 h3 a5 c4 a6 c3 a7 Ne7 g8R Nec6 g7 Rh6 Re8 Bb7 g8R Na5 Ref8 Ke6 Ba3 c1N d7 Ncb3 Rh2 Nd2 Rg7 Be4 Rb1 a1Q Rb4 Bc2 Qc1 Qg5 d8R Qg2+ Ke1 f2+ Ke2 f3+ Ke3 f1Q Kf4 f2 Ne2 Qd5 Kg5 f4 Rf5 f3 Ra4 Rh4 Bf8 Rc4 Kh6 Qe1 Rdd7 f1B Rd8 f2 Rdd7 Qg2 Rd4 Qd5 Rb4 Qa3 Ra4 Qe7 Nf4+ Kd7 Ng6 Ke6 Rb4 Be2 Nh8 f1B Ra4 Qf7 Rb4 Bf3 Ra4 Kd7 e6+ Kd8 e7+ Kd7 Rb4 Ke6 Ra4 Na6 Rb4 Rac8 Ra4 R8c6 e8R+ Qe7 Rd8 Nb8 Rdf4 Qf7 Rd4 R4c5 Rdb4 Rc4 Rd7 Qde5 Rd3 Qd5 Rd4
2R1Q3/N3n1R1/b1p1RBnR/1bb3Kp/1k3pPR/n2b2r1/R7/2n2r1q b - - 0 1 legal: proof: f4 a5 b4 d5 h4 b5 a4 e5 axb5 exf4 c4 dxc4 e3 g5 b6 gxh4 b7 a4 b5 Bb4 Na3 Bxa3 b6 Bf8 Bd3 Bh3 Bf5 Bg4 Bc8 Bxc8 Ke2 Kd7 Kf3 Kd6 d4 f5 g4 h5 d5 Kc5 e4 h3 e5 h2 d6 a3 e6 c3 e7 c2 e8R a2 d7 c6 Be3+ Kb4 Qd5 c1N Nh3 Ne7 Ng1 Ra3 Qe6 Rh7 Ne2 Rf7 Nc3 Qc7 d8R Nd7 b8R Ne5+ Kf2 f3 Kg3 f2 Kh4 f1B b7 Bb5 Rd7 N5g6+ Kg5 Qe5 Ra8 Qd5 b8R Ba6 Rbc8 Qg2 Bd4 Qf3 Re1 h1B Bf6 Qh3 Re2 Be4 Rh2 Bed3 Qe1 Qg2 Rh4 Qh1 Raa7 Rb3 Rd6 Ra3 Re6 Rb3 Red8 Ra3 Rdd6 Rb3 Rb1 a1N Rb2 Nc2 Ra2 Na3 Rad7 Rb2 Qe5 Rg2 Qe2 Ba4 Nb5 Rg3 Na7 B4b5 Rdd8 Ng8 R6d7 Bc5 Rdd6 N8e7 Rg8 Rf8 Rg7 f4 Rc7 Rb8 Rc8 Rb7 Rdd8 Rd7 Rh8 Rd4 Qe5 Re4 Rh6 Re1 Qd5 Rd1 Qd7 Rf1 Qe8
2N2B2/1k1qr3/1N1b1nK1/N2nqN1n/3rq1Q1/n3p1n1/P1B1b3/N1r1B2b b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 c5 f4 cxd4 h4 g5 e4 f5 Nd2 fxe4 f5 Ra7 Rh2 Ra8 Rf2 h6 Rf4 gxf4 g5 h5 Rb1 Ra3 Rb3 Ra6 Rg3 Ra8 Rg4 hxg4 Kf2 b5 c4 e5 h5 d5 f6 Kd7 g6 Kc7 g7 b3 f7 g3+ Kg2 e3 Kf3 d3 c5 e2 c6 e1Q h6 d4 h7 e4+ Kg2 b4 Qe2 b2 Nb3 b1Q Bd2 f3+ Kh1 f2 Kg2 Qd7 Nh3 Bb7 Na5 b3 Ng1 b2 Qe3 Nf6 g8N Nh5 Nf6 Ra7 Bc1 d2 Qa3 d1N Bb5 f1N Qb3 d3 Qa4 d2 Bd3 Nc3 Bc2 d1B Nf3 Nd5 Nd4 Be2 Bd2 Bd6 Ndb3 Rd8 f8B e3 Bb4 Qc3 h8N Qe5 Na1 Kc8 c7 Ba8 Bf5 Qbe4+ Kh3 b1N Nf7 g2 Nh6 g1R Be1 Na3 Qd4 Nfg3 Qb4 Qf3 Qg4 Qfe4 Kh4 Bc6 Kg5 Rb7 Bd2 Rc1 Be1 Ra7 Kg6 Ba8 Nc4 Kb7 c8N Re8 N4b6 Ra4 Nfg8 Rb4 Nge7 Rd4 Nc6 Re7 N6a7 Qa4 Nc6 Nd7 N6a7 N7f6 Nc6 Qf3 Bb1 Qfe4+ Nf5 Qb5 Bc2 Qa4 Nb8 Qd7 Nc6 Qg2 Kg5 Nb4 Bb1 Kc7 N6a7 Bc6 Bc2 Kb7 Kh6 Be4 Nc6 Nbd5 Kg6 Qf3 Bd3 Qff4 Bb1 Bh1 Bc2 Qfe4 Na5+
Rn2q1Rb/2r1Q1nR/1NR3pr/r2P3N/1b2n3/1r3bk1/Nbb3r1/2R4K b - - 0 1 legal: proof: g4 d5 b4 e5 c4 dxc4 g5 a5 g6 axb4 Qc2 e4 Kd1 e3 Bh3 exf2 Bf5 Ra6 Bb2 Ra7 Kc1 Ra8 Bf6 gxf6 Bd3 f5 g7 f4 Bg6 hxg6 Qa4+ Bd7 Qd1 Bc8 a4 Ke7 d4 Kf6 Kd2 Kg5 h4+ Kg4 e4+ f3 Ke3 f1R e5 b5 e6 c5 e7 f5 e8N f4+ Ke4 b3 a5 c3 a6 b4 d5 c4 a7 c2 h5 c1B h6 c3 h7 c2 Qd2 b2 Qf2 b3 Nd2 b1B Qc5 f2 Ra2 f3 Qb5 b2 Qb7 Kg3 Nb3 Bb4 Ra5 Nh6 g8R Bg4 Qg7 Nf5 Qf8 Ng7 Nd6 Qe8+ Qe7 Be3 Rh5 c1B+ Ke5 Bc2 Nc4 b1R Nh3 Rg1 Ra1 f1R Nb6 f2 Nf4 Rg2 Ra6 Re1 Rh1 f1N Rg1 Bca3 Nc1 Nd2 Na2 Rec1 Rf1 Bf3 Nh5+ Kg4 Rh1 Ne4 Rg1 Kh3 Rf1 Bd4+ Kf4 Rb3 Rg1 Ra1 Rc1 Bdc3 Ke3 Bab2 Kf4 Nd7 Ke3 Rc8 a8R Rc7 Na4 Kg4 Rc6 Nb8 Nb6 Kh3 Rf8 Rg8 h8R Kg4 Rh7 Rh8 Rg8 Kh3 Kf4 Bd4 Nc3 Ra5 Na2 Nf5 Rf7 Rh6 Rh7 Bh8 Rgg7 Nc3 Rg8 Ng7 Ke3 Rg3 Kf2 Rg2+ Ke1 Ne4+ Kf1 Rf2+ Kg1 Rg2+ Kh1 Kg4 Qe5 Kh4 Qe7+ Kh3 Nf4+ Kg3+ Nh5+
4BB2/2q4b/r5r1/NqBnr1RK/Pb1b2p1/R1R1Brr1/4k1n1/q4q1B b - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 c5 Qf3 cxd4 Nc3 h6 Nce2 h5 Nf4 gxf4 g5 Na6 Qh3 Nb8 Qg4 hxg4 Kf2 Kf7 h4 b5 a4 e5 c4 d5 f6 Kg6 f7 Kf5 h5 e3+ Ke2 Ke4 g6 d3+ Ke1 b3 g7 f3 h6 d4 h7 d2+ Kd1 b4 c5 f2 Ke2 d1R c6 b2 c7 b1Q Rh5 b3 Bh3 f1R Rg5 b2 Rh5 Bf5 c8R Bc5 f8B Ra6 Rh6 Rd3 Rd6 Nh6 g8B Qc7 Rcd8 Rf3 R6d7 Nc6 Rd5 Ne7 Bf7 Rg8 h8B Rgg6 Ra2 Qa1 Bf1 b1Q Bf6 Qb5 R5d7 Nd5 Ke1 e2 Ra3 Rg3 Kf2 e1B+ Ke2 Beb4 Rc8 Rb3+ Kf2 d3+ Be3 d2 Nf3 d1Q Be2 Bd4 B6e7 Qdb1 Bd1 Kd3 Be8 e4 Nd2 Rc3 Bb3 Rf3+ Kg2 Ke2 Nc4 Rd3 Bd6 Qf1+ Kh2 Rg3 Rg7 Rc3 Bc5 Rf3+ Bf4 e3 Na5 Be4 Ba2 Nf5 Rg8 Nh4 Bb1 Rgc6 Rg5 Bh7 Be4 Rg3 Bg2 Rg6 Bh1 Ng2 Bh6 Kd3 Bhf8 e2 Be3 e1R Bd2 Re5 Be3 Qcc6 Rc7 Rf3 Rc8 Ke2 Rc7 Rff6 Rc8 Qc7 Kg3 Ngf4 Kh4 Ng2+ Kh5 Rf4 Bg1 Rg3 Be3 Rff3 Bb6 Qb7 Rcc3 Qc7 Bbc5
K3R1q1/1r2q3/1r1nbR1P/2b2r1n/2r1Rq1q/2p3Rr/BrR3BB/2Nk4 b - - 0 1 legal: proof: g4 g5 b4 h5 c4 d5 f4 gxf4 b5 e5 g5 f3 Nc3 dxc4 Nd5 a6 Nf4 axb5 Qc2 exf4 Qf5 b4 Qg4 hxg4 Kf2 Kd7 h4 Kd6 d4 Kd5 a4 Ke4 h5 c5 e3 f5 d5 b5 g6 g3+ Ke1 b3 Kd2 f2 Kc3 b4+ Kb2 f3 g7 c3+ Kb1 c4 d6 f4 d7 g2 a5 b2 Kc2 b1R a6 b3+ Kd1 b2 Kc2 Qe7 d8R Nc6 a7 Nd4+ Kd1 c2+ Kd2 Nf6 Kc3 Nb5+ Kd2 Rb8 a8R Rb7 g8B Nd6 Kc3 Be6 Ne2 g1Q Bg2 f1Q R1a2 Qff2 R8a6 Qh4 Re8 Rh6 Rh3 Rb6 Bf1 f2 Rg3 f3 Bg2 f1R Bd2 Rh8 Nc1 Rb7 Rb6 Rh7 Kb4 c3 Nb3 Kd3+ Ka5 Ke2 Ka6 c1Q e4 f2 e5 Kd1 Bf4 Re1 Rc6 f1R h6 Nh5 Rb6 Re3 Bf7 Qd2 Nc1 Rff3 Bg8 Rf7 Rc6 Re4 Rb6 Rc4 Rc6 Bg4 e6 Rf5 Be5 Qf4 Rb6 Qeg5 e7 Qge3 Be6 Qg8 Rc6 Rb6+ Ka7 Qe1 Ka8 Rd3 Re3 Rb7 Re4 Rh3 Rd8 Rb6 e8R Qe7 Rb8 Q1h4 Rbd8 Ra1 Rd7 b1R Rda7 R1b5 Rc2 Rab1 Raa2 R1b2 Bf7 Qf1 Bh2 Qf4 Ra4 Rb7 Re3 R5b6 Rg3 Bg7 Be6 Bd4 Rb4 Bc5 Bf7 Ne4 Rf6 Nd6 Ra4 Re5 Bfd5 Be6 Rb4 Rf5 Ra4 Re4 Ba2 Rc4 Ra5 Ba3 Re5 Bc5 Re4
1nB1n3/4r2B/pnb3Bb/P1bn2q1/n4B1k/N7/4qNbn/Rr2B1KN b - - 0 1 legal: proof: d4 g5 f4 e5 c4 exf4 c5 g4 c6 bxc6 d5 cxd5 Qb3 d4 Qf3 d3 a4 h5 b4 Nh6 Nd2 Rg8 Ba3 Rh8 g3 gxf3 g4 Nf5 g5 Ne7 g6 Ng8 Rc1 Qg5 Rc5 Qe7 Rg5 Qd8 Rg4 hxg4 Kf2 Ke7 h4 Kf6 e4 d5 a5 c5 h5 Kg5 h6 f5 e5 c4 g7 a6 h7 d4 e6 g3+ Ke1 c3 b5 g2 Kf2 c2 b6 c1B b7 Nf6 g8B Qe8 e7 Ra7 Be2 Bd7 Bc5 Bc6 Nh3+ Kh4 Nc4 d2 Be6 d1N+ Kg1 f2+ Kh2 f1N+ Kg1 f3 Rh2 f4 Nd6 d3 Ne4 d2 Bg4 Nb2 Bd3 d1N Nef2 Nc4 Bd7 Nfe3 Ng4 Ned5 Ngf2 N1c3 Ne4 Na4 Rh1 Ncb6 Bc8 Rg8 h8N f2+ Kh2 f1N+ Kg1 f3 Bb4 Bd2 Ng3 Nh2 Bh7 Bdh6 Be1 Rg4 Nf7 Rb4 Ne5 Rb1 Nc4 Qh5 e8B Bc5+ Nf2 Qg4 Bed7 Ne8 Bg6 Qe6 Bh7 Qe2 Na3 Bce3 Bdf5 Bhf4 Bfg6 Rb5 Bc3 Bc1 Nfe4 Bd6 Bb4 Bh6 Bc3 Qd3 Kf2 Bc5+ Bd4 Rb4 Ra1 Rb1 Nc3 Qe4 Nd1 Qe5 Nh1 Qg5 Ke1 f2+ Ke2 g1Q Bc3 Q1g2 Be1 N8d7 b8B Rc7 Bd2 f1B+ Ke1 Rb7 Bbf4 Nb8 Bb4 Q2g4 Bbd2 Bg2 Bc3 Bcf8 Kf2 Qe2+ Kg1 Bd6 Bb4 Re7 Bbd2 Rb5 Ndf2 Bc5 Bc3 Rb1+ Be1
3nrq1b/1rNN3R/2nB4/2KNb1b1/P2np3/2N2Nq1/qk1p4/3b1BbB b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 c4 c5 a4 f5 d5 fxe4 Qd4 d6 Ra3 Nd7 Rc3 cxd4 c5 Nb8 c6 Nd7 Rc2 Nb8 Rc5 dxc5 Kd2 Kf7 f4 Kf6 h4 g5 f5 Ke5 h5 b5 f6 e3+ Kd3 e2 f7 e1B c7 c4+ Ke2 b3 h6 c3 Kd3 c2 h7 b4 Kc4 d3 d6 g3 d7 g2 Nh3 g1N Be2 g4 Bg5 c1B Be3 b2 Bd2 g3 Kc5 b3 Nc3 b1Q Bg5 b2 Na2 g2 Bh5 Ra7 Kb5 Kd4 Nf4 e5 Bg4 e4 Bh5 Nh6 Bg4 Ne2 Rh4 g1B Nh5 Bd6 f8N Be5 Bf3 Nc6 Bh1 Nf7 Nf4 Bc3 Be7 Bce3 Ba3 d2 Bd6 Qe1 Nd5 Bg5 Rh2 Qe7 d8N Qg3 Nd7 Re8 h8N Qf8 Rh7 Kd3 Ng6 Kc2 Nh4 b1Q+ Kc4 Kb2 Ne6 Rb7 Nf3 Ned4 Kc5 Qc2 Nh2 Nfd8 Nf3 Ba5+ Nac3 Qb3 Nh2 Qa2 Nf3 Bh8 N7b6 Bd7 c8B Be5 Nec7 Bg4 Nd7 Bh8 Nh4 Bd1 Nf3 Be5 N7b6 Bh8 Bh3 Be5 Nd7 Bh8 Na6 Bc7 Bf1 Bb8 Be7 Bbf4 Nac7 Bfe5 Bd6
2Q2K2/4Rnp1/6R1/1NNn3b/q1r1Rrrp/2n1N3/qkrNP2b/1N3br1 b - - 0 1 illegal: No proof kernel
Bq2n1R1/6np/Rr1P3B/br1Rkp2/rb6/1b2bB2/n3n1b1/BK4BN b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 h4 bxa4 e4 g5 f5 gxh4 e5 e6 Qh5 Qd7 f6 Qd8 Qf5 Kd7 Na3 exf5 e6+ Ke8 e7 Na6 Nb5 Nb8 Nd4 Kd7 Ne6 fxe6 Kd1 Kd6 Kc2 a5 e8B c5 b4 a3 d4 h3 g4 a2 g5 c3 d5 h2 b5 c4 b6 e5 b7 a4 f7 a3 g6 e4 g7 e3 Bb2 e2 Ba4 e1B Rd1 a1B Bc1 a2 Bg2 Ra6 Rd3 Rb6 Rd4 Na6 b8B+ Nc7 Rd2 Ke5 Ba7 Be6 Rd4 Bb4 f8B Nf6 g8R Nh5 d6 Qb8 Bb7 Ne8 Ba6 Nhg7 Kd1 c2+ Ke2 c3 Kd3 Bd2 Bb7 Be3 Ba8 Bb3 Ne2 Bb2 Bb5 a1R Ng3 Ra4 Bbc6 Ba1 Rd1 h1B Bb2 Bg2 Bf3 Rb5 Nh1 Rb6 Ke2 c1N+ Ke1 c2+ Bc3 Nh5 Bh6 Ne2 Rb1 Bb2 Ra1 c1N Ra3 Nhg7 Ra2 Bc4 Kd1 Ba5 Kc2 Bb3+ Kb1 Ba3 Ba1 B3b4 Rc2 Na2 Rc6 Rb5 Ra6 Ne6 Rg7 Rf8 Rg8 N6g7 Bb6 Rf7 Bd8 Rd7 Bh4 Rc7 Bf2 Rc6 Bg1 Rcb6 Rd5+
2N5/nq2p1nq/3rQ2r/1NP1K3/1NBB1N1B/1p3N1q/kbn2n2/r4r1b b - - 0 1 legal: proof: e4 a5 f4 g5 d4 c5 h4 cxd4 g4 f5 b4 axb4 a4 fxe4 f5 Bg7 Rh3 Bf8 Rf3 h6 Rf4 gxf4 g5 h5 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 Kd2 Kf7 c4 d5 f6 Ke6 a5 b5 a6 b3 a7 f3 h5 d3 Ke3 b4 Kd4 g3 h6 b2 f7 f2 h7 e3 g6 g2 c5 e2 g7 e1N Qb3 d2 Nh3 d1R+ Bd3 f1R Nc3 b1Q Bd2 g1Q+ Nf2 Qh2 Nfe4 Qd7 Bh6 Qh3 Nb5 Qb7 Na3 Nf6 g8N Bg7 f8B Ne8+ Nef6 Bd7 Qc2 Bc6 Qc4 b3 Bg5 Nc2+ Kc3 Rd2 Bh4 Ke5 Nh5 Rdd1 Qg4 d4+ Kc4 Bf3 Nf4 Nc6 Nf6 Bh1 Nb5 Rd2 Be2 d3 N6d5 Ke4 Qd7 Bb2 Nb4 Ng7 Qd6 Rdd1 Qf6 Rd8 a8N d2 Nb6 Rd6 Nc8 Na7 Qf7 Rde1 Qg8 d1N Qe6+ Be5 Bd3+ Ke3 Be2 Kd2 Bd3 Kc1 Be2 Nh5 Bg7 Bb2 Bd4 Ng7 Bd3 Nf2 Be2 Rf8 h8N Rf6 Nf7 Rh6 Ng5 Na1 Nb6 Qh7 Nf3 Kb1 Nc8 Nc2 Bd3 Rc6 Kd5 Ka1 Na6 Ka2 Bc4 Ra1 Ke5 Rd6 Nb4+
B1bKB3/r7/1Br3p1/1nRPp3/q2bpk2/3BRrq1/B2q1b1R/4r1nQ b - - 0 1 illegal: No proof kernel
Rb1R1B2/q1q2pR1/1Bn1r2R/2Pb1p1B/3Qr1bq/1k2n2q/1p2r3/1R4K1 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 c5 d4 cxd4 b5 g6 b6 axb6 Nc3 b5 Ne4 b4 Ng3 h6 Nf5 gxf5 Nh3 h5 g5 Qc7 Nf2 Qd8 Ng4 hxg4 Kf2 Ke7 e4 Kd6 a4 Kc5 h4 b5 c4 d5 e5 b3 a5 Kb4 g6 g3+ Kg1 g2 e6 b2 a6 b1R e7 f3 e8R d3 a7 d4 g7 d2 h5 f2+ Kh2 g1Q+ Kh3 d3 h6 Bd6 h7 Rb2 Rh2 Bb7 Re7 Nh6 g8R Qc7 Rhg2 Ng4 Ra3 Ne3 Re6 Bd5 Qh5 d1B R2g7 d2 Ra4+ Kb3 Ra1 b4 Qe2 Nc6 Rh6 Re8 a8R Re4 Rgd8 Rhe8 h8B R8e6 Qg4 Bh2 Bg2 f1Q Rb1 Bf3 Qf4 d1Q c5 Qgf2 Bd2 Qa7 Qh4 Bb8 Qf6 Qc7 Qd4 Qa6 Bf1 Qaa7 Be2 Bh5 Bc3 Qd3 Be1 Qff4 Bg3 Bg4+ Kh2 Qg5 Kg1 Qh4 Bf4 Bh3 Bh5 Bg4 Rc1 Re2 Rb1+ Kc2 Bg3 b3 Be1 b2 Ba5 Kb3 Bb6 Qc8 Rgh7 Qcc7 Bg7 Qc4 Bf8 Qh3 Rg7 Qca4 Qe5 Qd4 Qd6 Qf6 Qe5 Qfh4 Qd4
rnbnk3/1N1r1pK1/5Nn1/R1Bp4/1b4qB/N2N1P1p/2N3bb/4Bn1n b - - 0 1 legal: proof: d4 a5 h4 d5 c4 dxc4 b4 axb4 d5 g5 d6 e6 Qd5 exd5 g4 Be7 a4 Ra7 h5 Nc6 Bg2 Bf8 Rh4 gxh4 g5 Qe7 g6 Nb8 g7 Qg5 Be4 Ra8 Bg6 hxg6 Ra3 Nd7 Rh3 Qd8 Rh1 Nb8 Kd2 b5 Ke3 c5 Kf4 c3 Ke5 g5 e4 b3 h6 b2 h7 g4 a5 h3 a6 c4 a7 g3 Ne2 b4 Rd1 b3 Rd3 g2 Bd2 g1B Nc1 c2 Be1 c3 Na3 Ne7 Kf6 b1B g8N b2 e5 Bh2 e6 Nec6+ e7 Qd7 f3 Nd8 Re3 Qg4 Nd3 c1N Nc2 Ne2 Re4 Nf4 Ra4 Ng6 Ra5 Kd7 e8N Ba2 Ne7 b1N Nf5 Be7+ Kg7 Bc4 Na3 c2 Nd4 c1N Ndc2 Ne2 Nf6+ Ke6 d7 Ng3 Ne5 Rf8 h8B Bb4 Nd3 Ke7 Nb2 Bf1 Nd3 Ndc6 d8B+ Ke6 Ne3 Nh1 Nec2 Bg2 Bb6 Nd2 Bc5 Nf1 Bh4 Nd7 Be1 Nd8 Bh4 Rb8 a8N Rb7 Nb6 Nb8 Nbc4 Rd7 Nd6 Ke7 Nb7+ Rd6 Bcf2 Rd7 Be1 Rg8+ Kh7 Re8 Bg7 Rg8 Bh6 Rf8 Kg7 Rh8 Be3 Rf8 Ng8+ Ke8 Bc5 Ndc6 Nc4 Na6 Nd8 Bb7 Nh6 Rh8 Ba7 Rf8 Bhf2 Ke7 N4a3 Rg8+ Kh7 Re8 Ng8+ Kf8 Nf6 Ke7 Ne6 Ra8 Nec5 Bc8 Nb7 Nab8 Bh4 Nd8 Kg8 Bd2 Kg7 Bb4 Ng8+ Ke8 Baf2 Qe4 Bc5 Qg4 Nf6#
3b2BB/n1Nq2pn/2b1qq2/1N2r3/B2P1r2/3K2pp/1b1p2n1/kB1NBQ2 b - - 0 1 illegal: No proof kernel
1b3K1k/Nnn1r3/B3rBpB/2BrNP2/2q3pp/1N1nQ3/4p3/1bBn1b2 b - - 0 1 illegal: No proof kernel
1NN2b2/K1PRppp1/p1Bb4/7b/r3n1nr/q2kB1Nn/n1B2r1N/7N b - - 0 1 illegal: No proof kernel
1q1R3K/RB2p1p1/b2P1pr1/7n/R1n2BR1/B1R1qqp1/1rb1Qb2/q6k b - - 0 1 illegal: Other
6K1/N3pQ1N/3Qnr2/Q1Qb1q2/P1k2n2/R1qbn2r/R2r1qn1/r6Q b - - 0 1 legal: proof: f4 a5 b4 axb4 d4 f5 e4 fxe4 a4 h5 Be2 c5 Bg4 cxd4 Ba3 g6 g3 Bh6 f5 Bf4 gxf4 hxg4 Kf2 bxa3 Ke2 Ra7 Ke1 Ra8 Kf2 Kf7 Kg3 b5 c4 d5 h4 g5 h5 b4 h6 e3 f6 Ke6 f7 b3 f8Q b2 h7 d3 c5 d2 c6 d4 f5+ Kd5 c7 d3 f6 e2 f7 e1N Rh6 a2 Na3 b1B Rh3 Nc6 Rh5 Nd4 Qc2 d1N Rh3 d2 Qh6 Qf8 Rh2 Ng2 Nb5 Be6 c8Q Nf6 Q2c3 Ra6 Qa3 Nde3 Nc7+ Kc4 Qd8 d1R Qad6 Bd3 Qb6 Rd2 Nb5 Nfd5 Nf3 Ndf4 Na7 Bd5 Qhd6 Nde6 Qa5 Qg7 f8Q Qc3 Qf7 Rb6 Rah1 Rc6 Qdb6 a1Q Rc1 Qb1 Rc2 Qb5 Rh1 Qc5 Ra1 Qb5 Ra3 Qb1 Rca2 Qbc2 Kh2 g3+ Kg1 g4 Ng5 Bf1 Kh1 Qf5 Kg1 Bd3 Kh1 Rg8 h8Q Rg7 Qh2 Rh7 Kg1 Rh3 Qh1 Rc8 Nh7 Rf8 Qg6 Rf6 Qf7 Ne1 Nb5 g2 Na7 Be2 Kf2 g1R Ng5 N1g2 Nh7 Rh4 Kg3 Bd3 Nf8 Rh8 Nh7 Ra1 Nc8 Ne1 Kh4 g3 Na7 g2 Qe8 g1Q Qg6 Nh3 Qf7 Qff2+ Kh5 N1g2 Qg7 Qgf1 Qf7 Bg6+ Kh6 Nhf4 Qg7 Bd3+ Qg6 Nc5 Kg7 Qb1 Qf7 Qbc2 Ng5 Rh3 Nh7 Nce6+ Kh8 Bf1 Kg8 Qf5 Nf8 Be2 Nh7 Bd3 Qbc5+
6Rq/Rnbn4/p7/R2PN1bn/1n1Nk1p1/q1R5/2Qqbr1b/QKR5 b - - 0 1 legal: proof: c4 b5 a4 bxa4 Nh3 d5 Ng1 dxc4 f4 e5 b3 exf4 Bb2 a3 Qc1 axb2 Qc2 Qd3 Qd1 Qd8 g4 h5 Na3 f5 Nb5 a6 Na3 f3 Bh3 f4 Nb1 Ra7 Kf2 Rb7 Kf1 Rb5 Ke1 Rf5 gxf5 Ke7 Bg4 hxg4 Ra2 Kd7 Ra1 Ke8 h4 Kf7 d4 Kf6 Kd2 g5 Kc2 c5 e4 g3 h5 c3 d5 Ke5 b4 f2 b5 f1Q h6 f3 h7 f2 f6 c4 f7 g2 b6 Ne7 b7 Nec6 Rh5 Qe2+ Qd2 f1N Na3 b1N Rh2 Bd6 f8R Na5 Rh5 Nd7 b8Q Ng3 Rf1 Bc7 Rf2 Rf8 h8R Nb7 Rf1 Rf2 Rh1 Nh5 Rh7 Qh8 Nb5 Na3+ Kc1 g4 Rh3 Nc2 Kb1 Nb4 Qc2 Qd2 Nd4 Kf4 Ngf3 g1B e5 Bh2 e6 Ke3 Qd1 Ke4 e7 c2+ Kb2 c1B+ Kb1 c3 e8R+ Bhe5 Rg8 Bh2 Ra5 c2+ Ka1 Ndf6 Ne5 Bd7 Rc3 Bb5 Qc8 Be2 Rh1 Nd7 Qe1 Qd1 Rf7 Bh6+ Kb2 Qd2 Qa1 Bg5 Rc1 Bcd8 Qc5 Bc7 Rff8 Qe1 Ra8 Qd2 Ra7 Qh6 Re3+ Kf4 Rf1 Qh8 Rh3 Ke4 Qc6 Qg7 Qca4 Qh8 Rc3 Nd3+ Ka2 c1Q+ Qc2 Qa3+ Kb1 Bb6 Rc1 Bc7 Qca2 Nb4 Qc2+
1nqR1n2/8/1kp1NR1r/2nb1Q1R/1P6/1rn1pR2/2rr1R1n/1nQ1K1N1 b - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 f5 f4 b5 g5 bxa4 b3 a3 Bb2 axb2 Bg2 e6 Be4 fxe4 e3 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Qc1 g4 Qc2 Qd3 Qd1 Qd8 d4 Kd7 h4 Kc6 f6 g5 f5 a5 f7 c3 f8Q c2 d5+ Kb6 f6 c1R b4 g3 d6 g4 f7 a4 d7 g2 h5 e3 h6 a3 h7 g3 Qh6 c6 f8R e2 Qh2 a2 Qh6 e5 Qg5 e4 Nd2 b1N Ngf3 g1R+ Nf1 g2 Qg6 Ra3 Rh4 Nf6 Qg7 Rb3 Rh2 Rc2 Kf2 e1N+ Qd2 e3+ Ke2 Qc7 d8R Nfd7 Rf7 Nf8 Nd4 Be6 Qg6 Bd5 Ne6 Nf3 Rf6 Qc8 Ng3 Rd1 Rh5 Nh2 Qf5 Rg8 h8R Rg6 R8h7 Rh6 Rhd7 Rcc3 Qc1 Rd2+ Ke1 g1N Rdf7 Rcc2 Qd3 Ne2 Qf5 Nec3 Ne2 Na3 Rb1 a1N Rb2 Nab1 Ra2 Rbb2 Ng1 Nb3 Rg7 Nc5 Rg3 Rb3 Rf3 Nbd7 Ra7 Nb8 Rg7 Nh7 Rg2 Nf8 Rgf2
B3b3/1p3Qpb/bQ6/1RQ2Q2/2bQ2rn/pP2r3/2Kpn1qb/k4R1B b - - 0 1 illegal: No possible last move
R3b2b/2p2Bp1/p1n2r2/3bP1K1/2ppRQ2/qr1p1B1k/1b4BB/5B1Q b - - 0 1 illegal: Other
1rqN4/5R2/kn3pn1/b2n1Q2/P1RKQb1R/5q1R/Rrq1b2N/2nn1n2 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 Kd3 f1Q h4 b5 c4 d5 a4 Kd7 h5 Kc7 g6 Kb7 g7 b3 c5 f3 h6 b4 h7 f6 c6+ Ka6 c7 f2 Rh6 b2 Nh3 g3 Qc1 g2 Qf4 g1B Qf5 b3 Ra2 Nd7 Nd2 b1N Ra3 b2 Nb3 Nd2 Qe5 b1N Qf5 Nc3 Nf4 Bb4 Ra2 Ne7 g8R Bh2 Qh5 Ba5 Rg3 Ng6 Na1 Nb3 Rh3 Qg2 e4 f1N Ne6 Bf4 e5 Ra7 Rb2 Rb7 Nc2 Qh1 Ne1 Nc1+ Kc2 Rb4 Nf3 Nb6 Nh2 Bd7 c8R Bb5 Qg5 Qf3 Qf5 Be2 Rc4 Qc7 R6h4 Rb8 h8R Qc8 Nd8 Rb5 Rbb4 d3+ Kb2 d2 e6 d1Q e7 d4 e8Q d3 R8h7 d2 Qee4 Ncd5 Rf7 Nde3 Kc3 Ned5+ Kd4 Qc2 Rb2 d1N Ra2 Rb3 Rc3 Rb2 Rc4
1n6/2BN2Qp/3qpnQ1/1k1r2BP/2nqrb1K/1Nbb1NN1/b3N1b1/3n4 b - - 0 1 legal: proof: f4 e5 b4 d5 c4 g5 f5 a5 a4 dxc4 Ra3 axb4 Rf3 Qd4 Rf2 Qd8 Rf4 gxf4 h4 Qd5 d4 Qe4 g4 Be6 Bg2 Qc2 Bd5 Bd7 e4 Bh6 Be6 Bf8 d5 Bc8 Rh3 Qb2 Rd3 Qd4 Rd2 Qa7 Rd4 exd4 e5 Qa6 Qd2 Qd6 Qd1 Qd8 Bd7+ Ke7 e6 Kd6 e7 Na6 Kf2 Nb8 Be6 fxe6 Ke1 Kd7 Kf2 b5 e8N c5 f6 b3 g5 b2 f7 d3 h5 c3 g6 c4 a5 f3 Kg3 c2 d6 Kc6 g7 b4 a6 f2 d7 f1N+ Kh3 d2 a7 b3 Qe1 d1N Nd6 c3 Bf4 c1B Bh6 c2 Nd2 b1B Ne2 b2 Nf5 Bb4 f8Q Bb7 Nfg3 Nfe3 Qf3+ Kb5 Nb3 Ba2 Qc3 b1B Qe4 Nf6 g8N Nc4 Bg5 Bf4 Nh6 c1Q Kh4 Qb2 Nf7 Bd3 Qg6 Bg2 Ne5 Qe7 d8B Qd6 Bb6 Rd8 Nf3 Qd2 Qd4 Bc3 Qg1 Qe3 Bc7 Qed4 Qg7 Qa3 Qg6 Rd5 Qg7 Qd6 Qg6 Nc6 Qg7 Rf8 a8N Nb8 Nb6 Rd8 Nd7 Rc8 Bd8 Rcc5 Ba5 Re5 Bc7 Rcd5 Qh2 Re3 Qh3 Ree5 Qf5 Re4 Qfg6
2B1Q3/1Rr2q2/r1n1P3/R3rppn/bq2p1R1/1nB1RQqk/2Kb4/r1R5 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 hxg4 b4 axb4 Nd2 c5 e5 cxd4 Ne4 e6 Ne2 Ra7 N2g3 fxe4 f5 Ra3 f6 Ra8 Nf5 exf5 Kd2 Kf7 a4 Kg6 c4 Kg5 e6 Kh4 c5 d5 h3 b5 a5 g5 a6 d3 f7 g3 a7 g2 c6 g1Q c7 d4 Qe2 b3 Qf2+ Qg3 Kd1 d2 Qe1 b2 Bc4 b1N Qf1 b4 Ra5 b3 Qf2 b2 Bb5 Bb4 f8Q Qf6 Ra3 Rh7 Rg1 Bd7 c8R Qf7 Rd3 Nc6 Re3 Nf6 Qf3 Nh5 Kc2 d1R Ba6 Nd2 Qe8 Nb3 Bd2 Ra1 Bc3 Ra5 Rb8 Re5 Rb7 b1R Rc1 d3+ Kd1 d2 Kc2 Rc8 a8R Ra1 Rb5 Rb8 Bc8 Rb6 Raa5 Ra6 Rb7 d1Q+ Kb2 Qd4 Kc2 Nf6 Qf4+ Kh5 h4 Qc4 Qf1 Kg4 Qf3+ Kh3 h5 Qb5 h6 Nh5 Qe7 Rg7 h7 Qc5 h8R Qd6 Bd4 Bd2 Bc3 Qb4 Rh7 Na7 Qd8 Ba4 Qe8 Nc6 Rd7 Be1 Rdd1 Bd2 Rg1 Qg6 Rg2 Rga7 Rb7 Qf7 Rb6 Rd7 Rb7 Rc7 Qf2 Qf3 Rg4 Qg3 Qf3
r1Rnq1B1/4nR2/p1b2KRB/n2k2p1/q3RPrq/1q1Q3b/3R1b1p/7Q b - - 0 1 illegal: No possible last move
6r1/K1np3N/1NR2qn1/2Q3b1/1b1q1q2/1P2kp1n/NNR3q1/n1QQ4 b - - 0 1 legal: proof: d4 e5 a4 b5 f4 exf4 g3 bxa4 d5 a5 d6 a3 b3 a4 c3 a2 Nd2 a3 Bb2 axb2 Ndf3 cxd6 Nd2 d5 Rb1 d4 Rc1 Bc5 Ra1 Bf8 g4 Qb6 Bg2 Qd8 Rc1 a1Q Bf3 Qa2 Ra1 Qb1 Bd5 Ra4 Ba8 Rxa8 Ne4 f5 Kf2 f3 Nd2 f4 Kf1 Ra5 Ke1 Rf5 h3 g5 Ra5 Ba6 Ra1 Bc4 Rh2 Bf7 Rh1 Bh5 gxf5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 e4 Ke7 c4 Kd6 c5+ Ke5 c6 h5 c7 g2 Kf2 d3 c8N Kd4 g5 h4 e5 h3 g6 h2 g7 Qa2 e6 b1N e7 Na3 e8N Qf6 Rc1 Nc2 Nb6 Na1 Rc6 Ne7 g8Q Na6 Qg5 Nc7 Qh6 Qa8 Ndc4 d2 Nb2 Rg8 Ne2+ Ke4 Rf1 Ng6 Nc1 Bb4 Na2 h1Q Rc2 Qa7 Re1+ Kd4 Re6 Qh2 Rec6 g1B+ Kf1 f2 Ke2 Qg2 Qh1 Qfg5 f6 Qh4 f7 Qf6 Qc1 d1N f8Q Bh2 Qg1 Bg3 Qf1 Bh4 Qc5+ Ke4 Qe1 Bg5 Qh1 Ba3 Kd2 Kf3 Kd3 Bb4 Kc4 f1Q+ Nd3 Qf2 Nb2 Qg3 Qe1 Nf2 Qed1+ Ke4 Qb1 f3 Qbc1 Na8 Kb5 Nh3 Nd5 Qg4 Nb6 Qc7 Ka6 Qcf4 Ka7 Nc7 Ng7 Qh4 Ne6 Qhf2 Nf8 Q2d4 Rd2 Ke3 Nh7 Qf2 Rc2+ Qd2 Qb1 Qg2 Qbc1+
Br1B1QK1/3k1R1Q/1B3p2/1P3q2/b4b2/1nB4q/q1Q1qb1b/q1rq1R2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 e5 a4 exf4 Nd2 b5 Nb3 bxa4 Ba3 axb3 Bb2 Na6 Bc1 Nb8 g4 h5 g5 f6 g6 Ke7 Nh3 Nc6 Nf2 Ne5 Ng4 Nf7 gxf7 hxg4 Kd2 a5 Kd3 g5 Ke4 d5+ Kd3 g3 h4 a4 c4 g2 e4 g1B h5 f3 e5 a3 e6 b2 c5 b1Q+ Qc2 f2 h6 a2 c6 g4 c7 g3 h7 g2 Bd2 Nh6 Bg5 Nf5 Rh5 Bd7 c8Q Ba4 b5 Bh2 Be3 g1B Bg2 Bh6 Qc7+ Qd7 f8B+ Ke8 e7 B6f4 Bd2 Rc8 Bc3 Qb2 Rd1 a1Q Rf1 Qba2 Qb7 Rg8 h8B Rc4 Bhg7 Rh8 Ke2 d3+ Kf3 d2 Kg4 d4 Rh7 d3 Kh5 d1Q+ Kg6 d2 Bh6 Nd4 Rf7 Qf5+ Kg7 Nb3 Qa7 Qe1 Ba8 d1Q Qb7 Qee2 Qh1 Bc7 Be3 Kd7 Bb6 Bcf4 Qhe4 Rc8 Qh1 Rb8 Qhe4 Rh5 Kg8 Qh3 Qh7 Rc5 Re1 Qd5 Rc1 f1Q Rd1 Bf2 Re1 Kc8 e8Q+ Qd8 Qe7 Qdd1 Qd6 Qf5 Be7 Q1h3 Rf1 Rc7 Bd8 Rc4 Qf8 Rc5 Be7+ Kd7 Qb1 Rd5 Qb2 Rd2 Qc1 Rc2 Qb1 Rc1 Qe4 Bh4 Qc2 Bf2 Bed8+
q3Q3/2q1RNPp/k1qq1N2/1nbR1Q2/2np4/r2Q4/n3N3/r1Qn2bK b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 c5 f4 cxd4 f5 g5 Ba3 bxa3 f6 exf6 Kd2 f5 Ke1 f4 h3 Bc5 g3 Bf8 Bg2 g4 Bf3 gxf3 g4 Ra6 Rh2 Ra7 Rh1 Ra8 Qd3 b6 Qd1 Ba6 g5 Bc4 Qc1 Be6 Qd1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 Kf2 d5 e4 Kd7 c4 Kc8 c5 Kb7 e5 f5 c6+ Ka6 a5 d3 c7 d2 c8N b5 g6 a2 g7 b4 e6 b3 g5 b2 g6 Nf6 g8Q Ne8 e7 Nd6 e8Q Nc4 g7 Nc6 Qc1 d1N+ Kf1 f2 Kg2 f1Q+ Kh2 f3 Na3 b1N Ne7 f4 Nf5 f2 Qef7 f3 Nd4 Qd6+ Qff4 Na7 Nge2 Nbc3 Nb1 Nab5 Qe5 Qe1 Qe6 f1Q Qg6 f2 Nc6 Qd2 Qd3 Qc7 Qf4 Bc5 Nd8 Qfe1 Nf7 f1Q Rg1 Qf3 Rg5 Rhe8 Rh5 Re3 Qe5 Qc2 Nd2 Qf6 Rf5 Qfd6 Ne4 Qf2+ Kh1 Qf3+ Kg1 Ra7 Nf6 Qa4 Rb1 a1B Rh5 Bb2 Qef5 Na2 Rg5 Bbd4 Ra1 Qfg3+ Kh1 Qdc6 Rh5 Qgd6 Rg5 Kb7 a6+ Kb6 Rb1 Rg3 Rh5 Bg1 Rb4 Ra8 a7 Ka6 Rb3 Rf3 Rc3 d4 Rb3 Nbc3 Rb7 Nb5 Rg5 Qca5 Re7 Qac7 Qh3 Re3+ Rd5 Rg3 Qdf5 Ra3 Qhd3 Rb8 Qfh3 Rb7 a8Q+ Ra7 Qe8 Qa8 Qhf3 Qc2 Qdf5 Qe4 Rde5 Qec6 Rd5 Rb7 Qe6 Nbc3 Re5 Rb1 Qf5 Nb5 Rd5 Ra1 Q3d3
1b3n1R/1B1bRQ2/1Bqb1r1Q/K2k1q2/6np/2QPQq1b/Rbp5/1b6 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 a4 exf4 Bb2 b5 Bc1 b3 Bb2 b4 Ba3 Ra5 Bc1 Rb5 axb5 Bd7 Ra4 Bg4 Ra1 Bc8 h4 g5 h5 Ke7 Na3 Qe8 Nc2 Bg7 Nd4 Qd8 Nf5+ Ke8 Nh4 Bf8 g4 h6 Ngf3 gxh4 g5 Bb7 g6 Bc8 Ng5 hxg5 e4 Ke7 h6 Ke6 b6 c5 b7 f5 g7 c3 e5 c4 h7 g4 Qc2 f3 Bh3 f2+ Ke2 f1Q+ Ke3 f4+ Ke4 f3 Ra8 f2 Qd3 b2 Qd4 b1Q+ Qd3 b3 Ra5 b2 Rg1 Qf6 Kd4 Nd7 b8Q Nh6 Qf3 Qbf5 g8R b1B Qbb7 g3 Bb2 g2 Ra2 c2 Kc3 c1B Rg7 Rg8 h8Q Ba3 Qf4 Rf8 d3 Rf7 Rg8 Ng4 Qfh6 Nf8 Q8g7 Qe2 Re1 f1B Rh8 g1B Bg2 Bh2 Qc7 Qef2 Bb7 Bh3 Re4 Bc5 Qgh7 Ba7 Kb4 c3 Ka5 c2 Bd4 Bd7 Bb6 Bb2 Qc3 Bb8 Re3 Q2f3 Re2 Bc6 Re3 Kd5 e6 Bhc7 e7 Q6e6 e8Q Rf6 Re2 Qc8 Q7g6 Bd6 Qgg5 Qd7 Re7 Qc7 Qe3 Qcc8 Ba6 Bd7 Bb7+ Qc6 Qf7+
3b4/1k1K1pqq/6Q1/Rr2Q2P/b1p3Qb/7n/1qN1R2R/1NqR1bbr b - - 0 1 legal: proof: c4 a5 f4 d5 a4 dxc4 b4 axb4 f5 b5 f6 b3 Ra3 b4 Nh3 Nc6 Ra1 Nd4 Ng1 exf6 Ba3 f5 Bc1 f4 Ba3 g5 Bb2 Nb5 axb5 g4 Bd4 g3 Bf2 h5 Qc1 gxf2+ Kd1 Bf5 g4 Nh6 g5 Be6 Bh3 Bd7 Bg4 hxg4 Qc2 Be6 Kc1 Ng8 Qd1 Bc8 Kb2 Kd7 e4 f1B d4 c5 h4 Kc7 d5 f3 g6 g3 b6+ Kb7 g7 f2 e5 g2 d6 c3+ Kc1 c2 Kd2 b2 Ke3 c1B+ Ke4 b3 Kd5 c4 e6 Qf6 e7 Rb8 e8R Bg5 d7 Nh6 g8Q Ng4 d8Q Be7 Ra8 Qg7 Qd6 Bd7 Rh2 Bd8 Ra5 Ba4 Ne2 g1B Qe5 Rh5 Kd6 Rh7 Nbc3 b1Q Nd4 b2 Nc2 Qc1 Qd3 b1Q Qg6 Qbb2 Nb1 Bgf6 Qc5 Rh5 Re2 Qch6 Qd4 Qhh7 Qh8 Rb5 h5 Bh4 Qd1 Ne5 Qd4 Nd3 Qdg4 Nf4 Kd7 Nh3 Qe8 Bg2 Qe5 f1Q Rd2 Qfc1 Rd1 Bf1 Re2 Ra8 Rh2 Ra6 Re2 Ka8 b7+ Ka7 Q6f5 Kb6 b8R+ Ka7 Ra8+ Kb7 Qfg6 Rf6 R8a6 Rf2 Rf6 Rh2 Rff2 Rh1 Rh2
1Qr1bN1k/KpN2q1R/2b4q/b4n2/1NN2p2/1nP1r2p/3R1Q2/1rnQ4 b - - 0 1 legal: proof: h4 a5 f4 c5 d4 cxd4 b4 axb4 a4 e5 e3 exf4 a5 g5 hxg5 b3 Ba6 Nxa6 Ba3 Nb8 a6 Bh6 Bf8 Bxf8 Kd2 d5 Kd3 f5 g4 Kf7 a7 Kg7 g6 h5 g5 f3 c3 f2 e4 f1Q+ Ne2 b2 e5 h4 e6 h3 e7 Bd7 e8Q Bc6 Ra4 Nh6 Na3 b1R Nc4 Qf6 Rg1 Nd7 Ra6 Rc8 a8N Bb4 Nc7 Ba5 Qe3 Rhe8 Qf2 Kh8 Rb6 f4 Rb2 Qf7 Rd2 Nf5 Rg2 Qe1 Nc1 Qee6 Na2 Qd6 Nb4 Nc5+ Kc2 Nb3 Kd3 Qdf8 Rg3 Qh6 g7+ Kh7 g8N Kh8 g6 Re3+ Kc2 Be8 Nf6 Bc6 Nh7 Be8 Qc1 Bc6 Nf8 d3+ Kd1 d4 g7+ Kg8 Re2 d2 Kc2 d1N Rd2 Nb2 Qd1 Nd3 Rg2 Qfg6 Rg5 Ndc1 Rg1 Kf7 g8Q+ Kf6 Qh8+ Kf7 Qe5 Kg8 Qe8 Kh8 Rg4 Qgh5 Rg7 Qf7 Qe5 Ra1 Kb2 Rb1+ Ka3 d3 Qd6 Be4 Ka4 Bg2 Kb5 Bf3 Qd4 Bh5 Qa7 Bg6 Rc2 d2 Qb8 Bh5 Qh1 d1B Rd2 Bdf3 Qd1 Bd5 Nce6 Bd8 Nc7 Bc6+ Kb6 Bg6 Ka7 Bh5 Nce6 Ba5 Nc7 Bhf3 Nba6 Be8 Nb4 Bfc6 Rh7+
N2nkN1b/KQ1N3b/p7/4P1qr/1pr1p1Q1/n6R/3pR3/r1Nbr1Q1 b - - 0 1 legal: proof: b4 b5 e4 f5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 a5 a6 Bg2 d3 Bb2 d2+ Kf1 Bxb4 Bd4 exd4 e5 Bf8 Be4 fxe4 Ra3 b4 Ra4 Qxa5 Ra1 Qd8 Ke2 g5 c4 d5 f4 d3+ Ke3 g4 Kd4 g3 h4 g2 f5 Rh7 c5 Rh8 c6 Bd6 h6 Rh7 f6 Bb7 h5 Bc7 Kc5 d4 Ne2 g1R Nbc3 Ne7 Nb5 Ba5 c7 Nbc6 c8Q Na7 Qg4 Re1 Nc1 Bc8 Rh3 Bf5 Ra2 Nec6 Qg1 Rb8 Qdg4 d1R Re2 Rc7 h7 d2 h8N d3 h6 Bh7 Ng6 Ra8 Na3 Nb5 Nc4 Na3 Nf8 Rb8 Nd7 Rbc8 Na2 Ra1 Nc1 d1B Ncb6 d2 Na8 Ra7 Ndb6 Rg7 Nd7 Rg5 f7+ Ke7 f8N Ke8 Reh2 Rh5 Rg2 Qg5 Re2 Bg6 h7 Bd8 h8Q Bf6 Kb6 Nd8 Qh7 Bh8 Ka7 Rc4 Ndb6 Bf5 Qb7 Bh7 Nbd7
b1q3bK/b3rq2/1kqnbQN1/3R1N2/1P1qrrb1/3R3N/R2N1qn1/Q7 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kd3 f1B Ke4 d5+ Ke5 Kd7 c4 Kc6 b4 f5 e4 a5 h4 a3 c5 f3 h5 f4 h6 a2 h7 g3 g6 f2 g7 d3 Ne2 a4 Na3 f3 Rh5 d4 Rh1 d2 Nc2 g2 Rc1 g1Q Nc3 a1Q Rh3 d3 Qe2 d1B Ne1 a3 Rh5 a2 Qb2 d2 Rg5 Bc4 Qb1 f1Q Nd3 f2 Qb2 Nf6 g8N Nd5 Na4 Bf3 Rg2 d1B Nh6 Na6 Rc3 Ra7 Nf5 Nf4 Nb6 Qc1 Qa1 Re7+ Kf6 B8e6 e5 Qc8 Rg5 Bcb3 Nc4 Nc7 Nd2 Ng2 Nf4 Nb5 Nh3 Nd6 Rd3 Bg8 Kg6 Bbe6 Kf6 Kb5 c6 Kb6 c7 Ba8 Rh5 Bg4 Rg5 Qa6 c8Q Qc6 Rh5 Bh6 Qf8 Qac8 Qf7 Be3 Kg7 Qe2 Rg5 f1R Rh5 Qgf2 Rg5 Bb3 e6 Re1 Rh5 Qef1 Rg5 Bc5 Rh5 Re4 Rg5 Rd7 e7 Be6 e8R Re7 Rd8 Rf4 Rd7 Re4 Ra7 Be3 Qb2 a1Q Ra2 Re5 Qb1 Qd4 Qa1 Re4+ Kh6 Bd5 Qf6 Bge6 Kg6 Rf8 h8N Bg8 Kh6 Bde6 Ng6 Bef7 Kg7 Be6+ Kh8 Rff7 Qe5 Rf8 Nh6 Rf5 Qf6 Rff4 Rb3 Qfc4 Rc5 Qc4d5 Rd3 Qf5 Rd5 Qh5 Nf8 Qf7 Ng6 Qe5 Raa3 Kb7 Nf3 Ba7 Nf5 Qed4 Nd2 Kb6 Ra2
kq3QRK/1qq2bnP/1RR4r/2nq3N/b5N1/q7/Q4Nr1/2Rnbbb1 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 Kd3 f1Q Ke4 d5+ Ke5 Kd7 e4 Kc6 a4 b5 h4 Kb7 c4 f5 a5 b3 h5 b2 g6 f3 g7 g3 c5 d3 h6 f4 Qe2 d2 Qe3 d1B Ra2 d4 Ra3 b4 Rc3 f2 Rd3 f3 Qe2 g2 Rh3 b3 Qc2 Nd7+ Ke6 Ngf6 Kf7 Qc7 g8R Nh5 e5 Ng7 Nd2 b1Q e6 b2 Ne2 g1B e7 Qg2 e8N f1Q Ng3 f2 Rc3 d3 Nde4 d2 N8f6 Qa6 Ngh5 f1B Nf2 Qd5+ Kg6 Ra7 c6+ Ka8 N6g4 Nc5 h7 Be6 Qf5 Ba4 Rc1 d1N Rb3 Bf7+ Kh6 Qad3 Rb6 Qa3 a6 Qbe4 Qf4 b1Q Qd2 Rb7 a7 Qe8 Qe2 Qeb8 Qa2 Be7 Qd2 Bh4 Qa2 Qh2 c7 Qbb4 c8Q Qc7 Rc6 Rb6 Qe8 Ra6 Qf8 Qbb7 Rb6 Ne8 Rgg6 Rg8 Rgc6 Rg5 Ne3 Rg2 Neg4 Nf6 Kg7 Ne8+ Kh8 Ng7 Nd3 Be1 Ndf2 Qh2 Nh6 Qhe5 Nhg4 Qec7 Rb3 Bd3 Qe8 Qbd8 Re6 Bf1 Qg8 Rc6 Rb6 Qdc8 Re7 Rh6 Ree6 Qa6 Rec6 Qb5 Ra6 Kb7 a8R Q8d8 Rc8 Qb8 Qe8 Qdc7 Qe7 Qb6 Rg8 Q6a7 Qe8 Ka8 Rab6 Qab7 Qf8
KN2r1k1/bn1RRr1N/n2bbR2/3r2Qn/4R3/3q1PN1/q2p1r1Q/r2n4 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Bc4 g4 Ba6 fxe6 Bd3 e5 Bf1 e4 Bf4 Bg7 Kd2 Bf8 f3 h6 Bg3 h5 Bc4 Ra3 Bf2 Ra8 Be6 g3 Bf5 gxf2 g4 Qc7 g5 Qd8 Bg4 hxg4 c4 Kf7 a4 f1R h4 b5 h5 e5 a5 d5 h6 d3 Ke3 g3 a6 b3 h7 g2 a7 d4+ Kd2 e3+ Kc1 d2+ Kb2 e4 c5 b4 c6 e2 c7 e1R Qc1 e3 Ne2 g1B Nbc3 d3 Nb5 Rf2 Rh4 Rd1 Ra6 Nf6 Ng3 e2 Re4 e1N Nd4 Be6 c8R Nh5 Nc6 Bd6 g6+ Kf8 Rb6 Na6 g7+ Kf7 Qc5 Rf8 h8Q Rb8 Qh6 Kg8 a8R Rf7 Rc7 Qd7 Rbb7 Re8 Nb8 Ra1 Raa7 Ra5 Qce3 Rd5 Qeg5 Qa4 Rd7 d1N+ Kb1 d2 Rb6 b2 Rac7 Qc6 Ka2 Qb5 Kb3 Qd3+ Ka4 b1Q Re7 b3 Rcd7 b2 Rc6 Rd4+ Ka5 Qa2+ Kb6 b1R+ Ka7 Ra1 Ka8 Rd5 Rb6 Qe2 Rc6 Nd3 Rb6 Ndc5 Rc6 Nf6 Qh2 Nh5 Rb6 Nb7 Rc6 Kh7 g8N Qd3 Nf6+ Kh8 Qgh4 Kg7 Nh7 Kg8 Rc5 Rd4 Rf5 Rd5 Qf6 Re2 Qh6 Ba7 Rf6 Rf2 Qg5+
Brn1B1RB/1rp1bq2/1PK1b2Q/1r3Q2/2n2Bb1/7R/q3brn1/1Q2r2k b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 c5 bxa4 c6 g5 Ra2 g4 Ra1 dxc6 Na3 c5 Nb1 c4 Nc3 h6 Nf3 h5 Ne4 Qh4+ Nf2 gxf3 g4 Qe7 g5 Qd8 Ng4 hxg4 Kf2 Kd7 h4 Ke6 e4 Ke5 b4 f5 h5 a5 g6 a3 h6 c3 d3 c2 b5 a2 b6 a4 g7 a3 h7 g3+ Ke1 g2 Kd2 g1N Kc3 f2 Kc4 f3 Kb5 f4 Qe1 Qf6 Bh3 f1B Qd1 f2 Qd2 f3 Be6 Nc6 Rh4 Qf7 Bf5 Ne2 Bg6 Bg4 Qe1 Nge7 g8B Nf4 Qe2 Ra7 Qe1 Na5 Bh5 Ng2 Rh3 Be2 Bf4+ Kd4 e5 c1R e6 f1R Qd2 f2 Bh2 Rce1 Qh6 Nc8 e7 Rb7 e8Q Be7 Qef8 Nc4 Kc6 Be6 Rb1 a1R Rb5 a2 Rg5 Rac1 Bf3 Ke3 d4 a1Q d5 Qa8 d6 Qa2 d7 Rb1 d8Q Rb5 Qd1 Bg4 Qb1 Be6 Rhh5 Bd1 Be4 Bdg4 Bg6 Kf3 Rh4 Nge3 Rh3+ Kg2 Bh5 Kh1 Rg7 Qf6 Be8 Ng2 Rg5 Qg6 Qff5 Qf7 Rg7 Re2 Rg6 Rfe1 Rg5 f1B Rg7 Qg6 Bgf7 Rf8 h8B Rf2 Rg8 Qg7 Bg6 Qf7 Bh5 Bd1 Bf3 Bfe2 Bd5 Bg4 Be4 Bde2 Bd7 Ra7 Bf3 Rd8 Be8 N8d6 Bd5 Rb8 Bf3 Rb2 Kc5 Rb4 Ba8 Nc8+ Kc6 Rab7 Qh4 Rb3 Qh6 Rb5 Bf4+
2nb1QQ1/bKb2b1P/2Q5/r5q1/rR1r2Nq/q3qR2/1kpn4/R2n1Q1N b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 c4 a5 c5 axb4 c6 g5 Bh3 dxc6 Qc2 c5 Kd1 c4 Bb2 Ke7 Kc1 Ke8 Qd1 f3 Be5 f2 Bf4 gxf4 g5 Ke7 Bf5 Ke8 Bg4 hxg4 Kb2 Ke7 h4 Ke6 d4 Kd5 a4 f1Q h5 c5 e3 b5 a5 f5 g6 f3 a6 f2 h6 g3 g7 b3 Ka3 g2 a7 f4 h7 b4+ Ka4 b2 Kb5 c3+ Ne2 g1B Ra3 c4 Qa4 b3 Rh4 c2 Rg4 c1B Rg2 c3 Rg4 f3 Ra1 c2 Qa2 Nc6 Re4 Bd6 Qa6 Qh3 Rh4 f1Q Qa3 f2 Rg4 Qfg2 Qa2 f1N Ng3 Qdh4 Kb6 Kc4 e4 Nd2 e5 Nge7 g8R Nf5 e6 Ne3 e7 Nd1 e8Q Be6 Rf4 Ne7 Rff8 Bf7 Na3+ Kc3 Qb5 b1Q Rg4 b2 Nh1 Qe3 Qf1 Bc7+ Ka6 Bf2 d5 Nc8 d6 Qd5 d7 Qdg5 Qd5 Qa2 d8Q b1R Qc6+ Kb2 Kb7 Rg8 Rd4 Rg6 Re4 Rd6 Rc4 Rd4 Qdd5 Bd8 Qdd6 Bg3 Qg6 Bgc7 Qg8 Be8 Rf3 Bf7 Nb5 Qa5 Nd6 Qaa3 Ne4 Qa4 Ra3 Ra1 Nf6 Qaa5 Raa4 Qac5 Ra5 Ra4 Ng4 Qca3 Ka6 Rb8 a8Q Rb5 Qf8 Rf5 Kb7 Rc5 Ra6 Rca5 Qg8 Bb6 Qb8 Ba7 Qbd6 Bc7 Qdf8 Bd8 Rb6+ Nb3 Nh6 Qe6 Rh3 Ka1 Ng4 Bf4 Re3 Bfc7 Rf3 Nd2 Rb1+ Ka2 Rc1 Kb2 Ra1 Qee3 Rb4+
r2N4/B1b3pq/rbKQ1nB1/4P1q1/2n3N1/2q1B3/1rbQ2r1/1kbB1n1Q b - - 0 1 legal: proof: e4 h5 h4 a5 b4 axb4 g4 hxg4 d4 f5 a4 e5 Qe2 exd4 e5 c6 Qd1 c5 Ra3 c4 Rd3 cxd3 Rh3 Bc5 Re3 Bf8 Re4 fxe4 Kd2 Kf7 c4 Kg6 f4 Kf5 c5 d5 c6 b5 c7 g3 h5 e3+ Ke1 Ke4 h6 d2+ Ke2 b3 h7 g2 a5 b4 f5 b2 a6 b3 a7 Bd6 f6 Bf5 c8Q Bc7 f7 Nd7 f8B Ngf6 Bc5 Nb6 Na3 b1Q Qb8 b2 Nh3 g1B Qc8 Nc4 Qb3 d1N Bd2 d3+ Ke1 d4 Bf8 e2 Nb5 Nde3+ Qd1 Qa1 Qa6 b1Q Qd6 Qc3 Nf4 Qbc2 Bh3 Nf1 Bg4 Rb8 Na3 Rb2 Ne6 Be3 Bh5 Bg5 Kf2 e1B+ Kg2 Bf2 Bf4 d2 a8B+ Kd3 Kf3 Rg8 Qc1 d1R h8Q Rd2 Bg6 Be3 Qh6 Rg2 Qh1 Bh6 Qe1 Bc1 Bd2 Be3 Be7 Qb1 Nc2 Bf2 Ne3 Rf8 Ng4 Kc2+ Kf4 d3 Be3 d2 Bb7 d1R Bf3 Rd2 Ba7 Bfb6 Qe3 Ra2 Bd1+ Kb2 Qf2 Ra6 Qe2 Rc2+ Qed2 Bd3 Kf3 Ka1 Kf4 Rb2 Kf3 Rh8 Bf8 Qe7 Nd8 Bc2+ Kf4 Ne4 Kf5 Qg5+ Ke6 Ka2 Kd7 Nf6+ Kc6 Rg8 Nf7 Ka1 Be7 Ra8 Bd8 Qa2 Be7 Kb1 Nd8 Qaa3 Qd7 Qd3 Bc5 Qac3 Qd6 Qh3 Bd4 Qh7 Be3
b2k1nRR/1n3qb1/1p1nQ2q/2n5/2rQ1Q1n/2N1PQr1/2KR2p1/1n1r2N1 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 c4 f1N+ Kc2 f5 a4 d5 h4 d3+ Kb3 g3 g6 f3 h5 f4 c5 f2 g7 f3 c6 d4 e3 g2 a5 b6 h6 d2 c7 d3 a6 Qd6 a7 Bb7 h7 Nc6 c8Q+ Nd8 Rh4 Ng3 Re4+ Ne7 g8R f1Q Nc3 f2 Kb2 b3 Rb4 Ne4 Rg3 Ng6 Raa4 Rg8 h8Q Nc5 Qhh3 Bg7 Qf3 d1R Qcf5 d2 Rh4 Rc8 a8Q Nf8 Raf4 Qh6 Qa1 Ba8 Qhg4 Ndb7 Qa2 Kd8 Ka3 b2 Qff7 b1N+ Kb2 Qc4 Re4 f1N Rhh3 Nh2 Q7f5 Qf7 Q3f4 Nf3 Qae6 Nh4 Rd4+ Ncd7 Qgf3 Bh8 Qa2 Qhf6 Qa1 Re1 Q4e5 d1N+ Kc2 Nf2 Kb2 Rc4 Rg7 Ne4 Nd1 Nhg6 Qfe6 Ned6 Qef4 Ndc5 Rh6 Qg5 Rd2 Nh4 Rh7 Qh6 Qa4 Re4 Nc3 Rd1 Kc2 Rd4 Qac4 Re4 Qd3 Rc4 Rg6 Bf6 Rh8 Rg7 Qdd4 Be5 Rf6 Rg3 Rg6 Bf6 Rgg8 Be5 Qh5 Bg7 Qhf3
r4nr1/1NN3B1/1Nr1B2N/4n1qB/p2r1PQ1/kQ1qq3/1b2p1rq/4Kb2 b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Nd2 g4 Nb1 fxe6 Kd2 e5 Ke1 e4 f4 h5 h4 Nc6 b4 Qa5 Ra3 Nb8 Rf3 Qc7 g3 Qd8 Rh2 Nh6 Rg2 gxf3 g4 Ng8 g5 Bg7 Rg3 Bf8 Rg4 hxg4 c4 a5 h5 e5 b5 Ke7 h6 Kd6 h7 Kc5 b6 Kb4 c5 d5 c6 d3 c7 e3 b7 d4 g6 a3 g7 a2 Bh3 a1Q Qe2 g3 Bg2 a4 Bh3 f2+ Kf1 e4 Be6 d2 Bb2 d1R+ Kg2 f1Q+ Kh1 g2+ Kh2 d3 Kg3 d2 Bg4 Ne7 g8B Rc1 Nh3 g1R+ Qg2 d1R Na3 e2 Nf2 e1Q Be5 e3 Bf5 Rd4 Bg6 Bh3 c8N Qa2 Bh5 Nec6 Nb5 Bg7 Nc7 Qd3 Nb6 Ka3 Be6 Nd7 b8Q Rg8 h8N Nf8 Nf7 Qg5+ Kf3 Qad2 Qg4 Bf1 Nh6 Rg2 Ne4 Qeh4 Nc5 Qh2 Nb7 Bh8 Bg7 Rcc4 Bf5 Qc1 Qe8 e2+ Qe3 Re4 Na6 Qb3 Bf6 Rc2 Nc7 Rec4 Bd8 Bb2 Bf6 Rd4 Bg7 Qb1 Qd3 Ne5+ Ke3 Rcc4 Kd2 Rc6 Be6 Qc2+ Ke1 Qb1+ Qd1 Qe3 Ba2 Qbe4 Be6 Q4d3 Qb3+
nR1n1r2/3N2k1/8/2QRrp2/1r1rNn1K/3n1bQp/Q4PqQ/r1q1bR2 b - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 a6 b5 axb5 h5 bxc4 Ba3 c3 g4 Nc6 Bh3 Bd7 Bd6 Qb8 Bg3 Qa7 Bh4 gxh4 g5 Bc8 g6 Nb8 g7 Qd4 Bf5 Qd8 Bg6 hxg6 a4 b5 d4 e5 d5 f5 d6 Kf7 a5 c5 d7 c2 h6 c1N h7 e3 a6 e4 a7 b4 Qd6 h3 Qa6 c4 Qa3 b3 Qa6 g5 Qb6 e2 Qb7 b2 Ra3 c3 Qc6 c2 Rf3 g4 Qc3 g3 Qc5 g2 Qb5 Na6 Qb7 Ne7 g8R Nc6 Rb3 Nc7 Rb4 Nd3+ Kd2 e1N Ke3 c1Q+ Ke2 e3 Qb6 Bb7 Qc5 Qg5 Nd2 b1R Rd4 Rd8 a8Q Rb4 Ngf3 g1R Rd5 Ng2 Qa2 Na8 Ne4 Bd6 Re8 Kg7 Ne5 Ngf4+ Kf3 e2 Rf8 Rd1 Rf1 e1R Re8 Qg6 Rf8 Re8 d8Q Re6 Qc8 Nd8 Nd7 Re5 Q8c7 Be7 Re8 Rf8 Q7d6 Bg5 Kg3 Bh6+ Kh4 Qg2 Ng5 R1e4 Qb8 Red4 Ne4 Nh5 Qbd6 Bd2 Qb8 Nhf4 h8Q+ Kf7 Qh5+ Kg7 Qf3 Be1 Qbc7 Qa3 Qe3 Ra1 Qf3 Qc1 Qe3 Nc6 Rb8 Nd8 Qf3 Bc6 Q7d6 Ba4 Qe3 Bd1 Qg3+ Bg4 Qh2 Bf3 Qg6+ Kh8 Qgg3 Kh7 Kg5 Kg7 Kh4+
K7/1BQn1B2/1r1rp1nk/b4rN1/1Q2r1n1/1B2NPp1/b5n1/BqqQr3 b - - 0 1 legal: proof: d4 a5 b4 axb4 e4 g5 e5 c5 e6 cxd4 a3 g4 f3 g3 Qe2 fxe6 Qd2 e5 Qd1 e4 a4 Bg7 Kd2 Bf6 Ra3 Bg7 Re3 Bf8 Re2 Qa5 Rf2 gxf2 Bd3 Qb6 Bf1 Qd8 h4 h5 g4 Rh6 g5 Rh8 Rh2 Na6 Rg2 Nb8 Rg4 hxg4 c4 Kf7 g6+ Kg7 h5 b5 c5 d5 a5 b3 c6 g3 c7 e3+ Kd3 e2 a6 e1N+ Kd2 b2 a7 b4 Na3 b1R Nh3 d3 Ke3 d2 Kd4 b3 Kc5 d4 Kb6 b2 Ba6 f1R Bb7 d3 Nb5 Be6 Qe2 d1R Na3 d2 Qd3 Qc8 Qd7 Ba2 Ng5 Ng2 Nc4 Rfe1 Ne3 Kh6 g7 e6 Qa4 Rh7 Qb4 Ne7 g8B Ng6 Bf7 Nd7+ Ka6 Rb8 a8B Ra1 Ka7 b1Q Bd5 Rb6 Bb2 Bg7 Bac6 Bc3 Bb7 Rh8 Bb3 Rf8 Qc4 Ba5 Qb4 Re2 Bd4 Rde1 Be5 d1N Bd4 Nb8 Ka8 Nf2 Bb2 Ng4 Be5 Qe8 c8Q Qc6 Qc7 Rd8 Bb2 Rd6 Bc3 Nd7 Bb2 Qd1 Bc3 Rb1 Ba1 Qcc1 Qbc5 Qd3 Nd1 Re4 Ba4 R1b5 Qb4 Rbd5 Ne3 Rg1 Bc2 Rde5 Bb3 Kg7 h6+ Kf8 Ba6 Qdb1 h7 Rf5 Bb7 Rd1 Bg8 Rg1 h8Q Rf1 Qhc3 Rd1 Bf7 Re1 Be8 Kg8 Qc2 Kf8 Qd1 Kg8 Nf7 Kh7 Ng5+ Kh6 Bf7
2K1b1N1/N3qr1r/1p2n3/pnNBnqk1/3bP3/7n/3BBrNQ/1rQr4 b - - 0 1 legal: proof: f4 c5 h4 g5 a4 gxh4 d4 cxd4 f5 b6 f6 exf6 Nh3 f5 Ng1 f4 b4 Ke7 g4 Bh6 b5 Na6 a5 Nb8 a6 Bf8 Ra5 Ke8 Rh3 Qg5 Rb3 bxa5 b6 Qe7 b7 Qd8 Rb6 axb6 Kd2 Ke7 Kd3 Kf6 Kc4 h5 Kb5 d5 e4 f3 c4 f2 a7 d3 c5 d2 c6 h3 c7 d4 Na3 h4 Qa4 d1R Be2 f1R Bh6 d3 Qc4 d2 Be3 h2 Nb1 h1R Bh6 h3 Na3 h2 Be3 Qe7 Bc5 Na6 Kc6 Nh6 b8N Kg5 Nb1 f5 Be3+ f4 Qc1 Rh7 Na3 Bd7+ Kb7 Be8 Qb1 Nc5+ Kc8 Bg7 Qc1 Ne6 Qc2 Rf2 Nb5 Nf7 Qa2 Ne5 Nf3+ Kf6 Ne1 f3 Qb2 Rg1 Qc2 h1N Ng2 Rb1 Qb2 d1N Bd2 Nc3 g5+ Kg6 Qc2 Rgd1 Qa2 Kh5 g6 Bf6 g7 Kg4 Nd6 Nb5 g8N Rf7 Nb7 Bg7 Bb4 Kg5 Nc5 Bh8 Kb7 Bf6 Nc6 Rad8 a8B R8d7 Kb8 Rff1 c8Q R7d3 Na6 f2 Nh4 Nf3 Na7 Bd4 Bd5 Ne5 Bg4 Rh3 Qcc2 Rh2 Kc8 Rh7 Nc5 Rf7 Ng6 Rhh7 Bc3 Ng3 Qab2 Ne2 Nf4 Ng1 Qbc1 Nh3 Bh5 Rd2 Bb4 Rfd1 Qa2 f1Q Qac2 Rd3 Qh2 R3d2 Ng2 Qf4 Bg4 Re2 Bd2 Rf2 Ne3 Qff6 Be2 Qf5 Ng2+
r6Q/nkqp3n/1n2R1nQ/BRb2br1/2P3B1/1Kp1q1q1/3b2R1/1Rb3B1 b - - 0 1 legal: proof: d4 b5 g4 h5 c4 hxg4 f4 c5 b3 cxd4 f5 a5 f6 b4 Nh3 a4 Nf4 a3 Nc3 bxc3 Nd3 exf6 Qd2 f5 Qd1 f4 Nb2 axb2 h4 b1Q e4 g5 a4 f5 h5 g3 e5 d3 e6 g2 h6 g1B h7 f3 e7 f4 b4 g4 b5 g3 b6 g2 b7 Be3 a5 g1B a6 Nc6 b8Q Qbb6 a7 Bh6 Ra2 Bb7 Rh5 Nf6 Be2 d2+ Kf1 f2 Qb3 d1N Qa3 Rg8 h8B Nb2 Bg4 Nd3 Ke2 f1N Kd1 f3 Kc2 f2 Bf5 Nh7 Bf6 Nf4 Be6 Rg5 Rh3 Bd2 Ra1 Qe3 Rb1 Ng6 Kb3 Qc8 Qe5 Qc7 Bg4 Qg3 Qd4 Ne3 Rh2 f1Q Qad6 Qfh3 Rg2 Nd5 Ba3 Qe3 Bb4 Nb6 Ba5 Qeg3 Q4e5 Bc5 Bg7 Qe3 Qh2 Qhg3 Bd4 Nce5 Qh1 Be4 Qf6 Bf5 Qh8+ Bf8 Qh2 Nc6 Qh6 Ba3 Bc5 Bac1 Bd4 Rb8 a8R Na7 Bc5 Rd8 Rb8 Rc8 Rb7 Ra8 Re2 Kf7 Rg2 Ke6 Bd4 Kd6 e8R Kc6 Rbb8 Bc5 Re7 Nd5 Rb5 Nb6 Re4 Kb7 Re6 Qe2 Bf2 Qee3 Bg1
B3nb1q/pq3q2/b3rPn1/K2bk2B/1n1q2Q1/4Rp2/2r2Q1b/3BQ1BR b - - 0 1 illegal: No possible last move
q1RR2N1/2b2Qpq/1R3bR1/2P2Q2/Q1q1rn2/4qp1k/6pr/n2K1Nqb b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Qd3 hxg6 Qd2 g5 Qd1 g4 f4 Na6 e4 Nc5 f5 Ke7 Bf4 exf4 e5 Ke8 e6 Na6 e7 Nb8 Bd3 Ra3 Bc4 Ra8 Be6 fxe6 Qd3 Kf7 Qd2 Rh7 Qd1 Rh8 e8Q+ Kf6 h4 d5 c4 b5 a4 e5 h5 Kg5 a5 b3 c5 e4 h6 g3 f6 d3 h7 d4 f7 b2 a6 d2+ Ke2 Kg4 a7 b4 Qe5 e3 Na3 b1Q Qf6 d3+ Kf1+ e2+ Kg2 b3 Qc6 b2 Qca4 Qc1 Rh3 b1Q Qf1 d1Q Qa6 e1B Rh5 d2 Ra2 Qdc2 Qad3 d1Q+ Qf2 Ba5 Qd5 Ne7 Nh3 Bb7 Ng5 Ng6 Ne4 Be7 f8R Bc7 Qf7 Qc4 Rh6 Qe3 Rb2 Nc6 Nc2 Bf6 Rb6 Nd4 Qf1 Rb8 a8Q Nb3 Qa4 Na1 Rg8 Q8d5 Rd8 Re8 h8R Ba8 Rc6 Rb2 Rb6 Qb7 Qd3 Qba6 Qf1 Bb7 Rc8 Qa8 Qf2 Re7 Rhd8 Re6 Nb4 Re5 Nd5 Rc2 Nd2 Re4 Ne7 Rb2 Rh1 Qdc2 Rc1 Bc6 Kg1 Kh3 Nf1 Qd1 Ng8 Qh5 Kh1 Qh7 Qf3 Rf2 Kg1 Rh2+ Qf2 Rd4 Re1 Bh1 Rd1 Re4 R1d6 g2 Rdc6 Qf3 Qfc2 Qfc3 Kf2 f3 Rcd6 Nf4 Re6 Bg5 Rg6 Bf6 Qd3 Qcc1 Qdd5 Qbd3 Qf5+ Kh4 Ne3 Qdd4 Qe5 Qa3 Ke1 Kh3 Qed5 Ne2 Nf1 Qg1 Qg5 Qae3 Kd1 Nf4 Qf5+
kN1Q3r/1p6/n3bqNR/b6P/2npq3/qp3r1b/QQ3b1b/R1QK1R2 b - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 h5 Bh3 c5 Bf4 gxf4 g5 cxd4 Bg4 hxg4 c4 d5 h4 Kd7 a4 Kc7 c5 e5 a5 b3 f6 f3 h5 g3 a6 e3 c6 e4 g6 g2 f7 e2 g7 d3 a7 d2+ Kf2 e1B+ Ke3 d4+ Kf4 e3 Ra2 f2 Kf3 f1B Ra6 e2 Qc1 d1Q Nd2 Bd6 f8R Bh2 Nc4 Ne7 g8Q Ng6 Nb6 Ba5 Qb2 e1Q+ Ne2 g1B Nd7 Qc1 Nf4 Bh3 Rb6 Na6 Nb8 Qeh4 Ke2 Ne5 Ng6 Nc4 Rf1 Bce6 Qe8 Kc8 c7 Bf2 Qa4 Qde7 Qaa2 Qhf6 Rhg1 Qcf4 Ra1 Qa3 Kd1 Rf8 Rf1 Qe4 Nc6 Rb8 a8Q Kd7 c8Q+ Kd6 Qe8 Kc7 Qa7 Rd8 Nb8 Rh8 Qab1 Rd5 Q1c1 Rf5 Qa8 Rf3 Qa4 Qaf8 Qaa2 Qa3 Rd6 Kc8 Nc6+ Kc7 Qe8 Kb6 Nb8+ Ka7 Qd8 Ka8 Rd7 Beg4 Rh7 Be6 Rh6
bq6/nRN1k3/3R1NQn/nr3p2/n1n3Q1/b2R2pp/2Q3nP/r1b3KQ b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 f5 c4 f4 b5 a6 Ba3 axb5 Bb4 bxc4 Bc5 c3 Bd4 g6 Bf6 Bd7 Bh4 Bc8 Bg3 fxg3 f4 Be6 f5 Nc6 f6 Bd7 Bc4 Nb8 Be6 Bc8 Bf5 gxf5 Kf1 h5 d4 c5 a4 b5 d5 e5 g5 c2 d6 c1N g6 h4 a5 c4 g7 b4 a6 e3 a7 c3 Ra5 c2 Qe1 e2+ Kg2 h3+ Kf3 e4+ Ke3 b3 Rd5 b2 Rd3 Nb3 Qc3 c1B+ Nd2 b1N Nf3 e1N Ke2 e3 Kf1 e2+ Kg1 Bb7 Ne4 Na5 Qc2 Ng2 Nd4 e1N Nb5 Nh6 g8Q Ne3 Qg4 Nc3 d7+ Kf7 Rd6 Nec4 Nc7 Na4 Rd3 Qe8 d8R Bfa3 R8d6 Nbc6 Qg6+ Kf8 f7 Ng2 Nf6 Ke7 Qg4 Rb8 a8Q Rf8 Qa6 Na7 Qc6 Ba8 Qg6 Qd7 Qf3 Rb5 Qfg4 Re8 f8Q+ Kd8 Qfg8 Ke7 Qd5 Qd8 Qdf3 Qb8 Qff2 Bcb2 Kf1 Re5 Qcd2 Kf8 Qc2 R8e6 Qe1 Ke7 Rb3 Rd5 Rb7 Rd1 Rg1 Ra1 Qed1 Bc1 Qd5 Nf4 Qh1 Re5 Rg2 Rd5 Rd2 Ng2 Kg1 Rb5 R2d3
k1b4K/bBQ2Q1b/2ppn1bB/1nq1N3/1Nr3qp/PQ5n/7n/1N2rN2 b - - 0 1 legal: proof: e4 a5 h4 g5 b4 gxh4 g4 axb4 c4 d6 d4 Kd7 d5 f5 e5 Ke8 a3 Kd7 Rh3 Ke8 Re3 Kd7 Re4 fxe4 c5 dxc5 d6 Ke6 d7 c4 Ra2 Kf7 Rd2 Ke6 Rd6+ exd6 Qa4 Kf7 Qd1 Ke7 Kd2 h5 Ke3 b5 Kd4 c6 f4 b3 e6 c3 g5 h3 f5 b2 g6 h2 g7 h1N Qc2 e3 Be2 h4 Ke4 b4 Nf3 b3 Bc4 e2 Kd4 e1N Nbd2 b1B Bd3 b2 Be2 Nh6 g8Q Ng2 Ne5 Bg7 Bf1 Nf2 Qd3 c2 Qb3 Nh3 Ke4 Ng4 Nd3 Nh2 Nb4 Ra4 Ba6 Ngf4 Nf1 Bd4 Bd2 Qa5 Qf7+ Kd8 e7+ Kc7 f6 Ne6 Bh6 Ba7 e8N+ Kb6 d8N Qg5 Nc7 Re8 Nb5 Qg1 Kf5 c1Q+ Nd3 Qd4 Kg6 Qcc5 Kh7 Qg4 Nc3+ Rb4 Qg7 Bc2 f7 b1B f8Q Re7 Qd5 Rc4 Kh8 Re8 Nb4 Bh7 Qfg8 Bbg6 Nf7 Re7 Ne5 Re8 Bb5 Na6 Nb1 Nac7 Ba6 Nb5 Qd1 Re7 Q8f7 Kc7 Qb3 Kb8 Qgg8 Ka8 Qd8 Ned4 Qc7 Re6 Nd7 Re1 Ne5 Ne6 Bb7+
1bB1q1n1/nRn1bQp1/q5B1/B1p5/1R1r1Q2/1R2pp2/4b1P1/2k1brRK b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 f4 d5 Nc3 dxc4 Nf3 f5 Nd5 fxe4 Ne3 Kf7 Ne5+ Ke8 N3g4 hxg4 Nf3 gxf3 Kf2 Kd7 Kg1 Kc6 a4 Kc5 h4 Kd4 f5 e5 h5 b5 d3 Kc3 f6 c5 h6 e3 a5 e4 f7 b3 d4 b2 a6 b1Q a7 e2 h7 e1B d5 b4 d6 b3 d7 b2 Qa4 Nc6 Bf4 Ba6 Bg3 Kd2 Kh2 c3 Bc4 c2 Bc7 c1B Bd3 Be7 f8Q Qe8 d8R Qa2 Rd7 b1N Rg1 Rd8 a8B Na7 Kh1 Na3 Qf7 N3b5 Bb7 e3 Qaf4 Bb2 Bc8 Be5 Bb6 Bb8 Rb1 Nc7 Rb3 Kc1 Bg6 Be2 Rd4 Qa6 Rdb4 Rd1 Ba5 B1h4 Rb5 Rf1 Rb7 Be1 R3b4 Nh6 Rb3 Rf8 h8R Ng8 Qe6 Rf6 Qf7 Rd6 Rh4 Rd3 Q4f5 Rd8 Rhb4 Rd4 Qf4
1q6/1b3P1n/Q2rp1K1/1bN2nbp/1B3pk1/1Bb3BN/pQ3N2/rr2Bq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 Nh3 e5 Ng1 dxc4 b4 Qd4 g4 Na6 e4 Qd3 Rh2 Bh6 Rf2 Bg7 Rf4 exf4 e5 Nb8 e6 Qd8 e7 Kd7 Ra3 Bh6 Re3 Bf8 Re6 fxe6 Ke2 a5 Kf3 c5 Ke4 h5 e8N c3 d4 a3 g5 a2 d5 a1B f6 a4 b5 c2 g6 c4 f7 a3 g7 h3 d6 c3 b6 h2 b7 h1B+ Ke5 Nf6 g8Q Bc6 Qe2 Nh7 Qa6 Bb5 Nd2 Bh6 Nh3 Bg5 Qg7 a2 Bb2 c1R Nc7 c2 Bc4 Ra7 Bd4 Bc3 Ne4 Ra1 Nef2 c1Q Bb3 Qf1 Qf6 Qg8 Qg7 Kd8 d7 Ke7 d8B+ Kd7 Ke4 Nc6 b8B Ne7 Ke5 Nf5 Be7 Bb7 Bb4 Ra8 Ba7 Qb8 Bb6 Rd8 B6a5 Bb2 Be1 Ke7 Bab4+ Rd6 Qa4 Be4 Na6 Bb7 Nc5 Bc3 Qh8 Raa6 Qa3 Rab6 Qc8 Be4 Qca6 Bb7 Qb2 Kf8 Bd1 Kg7 Bb3 Kh6 Nfd3 Bd2 Bdf2 Kg6 Bg3 Kh6 Qd4 Bc3 Ndf2 Bd8 Nfd3 Be8 Bc4 Bd2 Ba5 Rbb1 Bb3 Bb5 Qb2 Kg6 Bb4 Be7 Ng1 Kg5 Nh3+ Kg4 Ba4 Bh4 Bb3 Ng5 Kf6 Bc3+ Kg6 Nh7 Qc1 Bd8 Qb2 Bg5 Ndf2+
2R1b1n1/3Qr2n/k1KbP2b/2Q2N2/3Qp1b1/ppRp1nqR/1r1n1R2/6N1 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 bxa4 h4 g5 d4 gxh4 b5 e5 Ba3 exd4 e5 f5 Bb4 cxb4 Bd3 Ke7 Be4 fxe4 Kf1 Kf7 Ke1 Ke8 Kd2 h5 f4 d5 c4 Kd7 g4 Kc7 f5 Kb7 c5 a5 b6 d3 Ke3 a3 Kd4 a4 e6 h3 f6 d2 g5 a2 c6+ Ka6 c7 b3 f7 h2 b7 h4 g6 a3 g7 h3 Ke5 d4 Qe2+ d3 Qg4 d1B Qe2 Nc6+ Kf5 Nd4+ Ke5 Bd6+ Kd5 Nf3 b8Q Ra7 f8Q Bd7 c8R Qc7 Qd2 Be8 Nc3 Rb7 Rb1 a1B Na2 Bb2 Qf7 Bc1 Qc3 Bh6 Rc1 Rh7 Ne2 Ra7 Rf1 h1N Ng1 h2 Qd7 Ng3 Qc5 h1N Qbb4 Nh5 Nc3 N1g3 Rf2 Nf1 Nb5 N1d2 Nd4 Qb8 Rc3 Nhf6+ Kc6 Rh8 Nf5 Nh7 Qbd4 Be2 Kd5 Rc7 Qd8 Re7 Qdc7 Nh2 Qd7 Bg4 Kc6 Nhf3 Qcd5 Bb4 Q5c5 Qg3 Qce5 Bd6 Qed5 Ngf6 Q5c5 Rf8 g8R Rff7 Rg7 Ng8 Rg5 Rg7 Rh5 Rg5 Rh4 Rh5 Rh1 Rh2 Re2 Nc4 Ra2 Rb2 Rh3 Ncd2 Ra1 Qh2 Rf1 Qg3 Rf2
n1Q1r3/KN2RnRN/pR1Npr1r/Pb1Q4/2qN4/2p2p2/k4p2/1n4bq b - - 0 1 legal: proof: e4 g5 g4 b5 f4 gxf4 c4 bxc4 g5 h5 b3 d5 Ke2 dxe4 Bh3 f3+ Ke1 Bb7 Bg4 hxg4 Qe2 Ba6 Kd1 Bc8 Ba3 Rh4 Bc5 Rh8 Bf2 e3 Kc1 exf2 Qe1 Qd4 Qd1 Qd8 Kb2 Kd7 Kc3 Ke6 Kb4 Kd5 Kb5 f1R h4 c5 a4 f5 d4 e6 b4 c3 h5 f2 a5 c2 h6 c1N g6 f4 g7 c4 h7 c3 Nd2 g3 Ne4 g2 Nf3 Na6 Nd6 Nh6 g8N Nb3 Rb1 Qh4 Rg1 Nd2 Rb3 Nb1 Qd2 Nc5 Qa2 Nb7 Ka6 Bd7 b5 Nf7 b6 Re8 Qd2 Be7 Rb4 Ba4 Rc4 Bf6 Rc7 Bg7 Re7 Qg4 Ne4 Kc4 d5 Kb3 d6 Bd4 d7 Nbd6 d8N Nb5 Nd6 Nc7+ Kb7 Na8 Nf6 Be3 Qd5+ Kb2 Nd4 Bb5 Kb8 Qe2 b7 Qc4 N6f5 Ka2 Nd6 Rhg8 h8Q Rg6 Nh7 Rf6 Rh1 Rg1 Rh3 Rh1 Rg3 Rhh6 Rg6 g1Q Rg5 a6 Ka7 f3 b8R Qh1 Rg7 Bf4 Rb6 Bh2 N8b7 Bg1 Qf8 Rc8 Qd8 Rb8 Qd7 Re8 Qc8
6NR/Np2n3/Rq1Q1KQr/1N5R/Prq3bp/b2qp2p/1n2p3/3Rk1r1 b - - 0 1 legal: proof: e4 d5 h4 c5 c4 a5 b4 axb4 h5 f5 h6 fxe4 Ba3 b3 Rh5 b2 Bb4 cxb4 c5 gxh6 Rh3 h5 Bc4 dxc4 Rh1 h4 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 Kd4 g4 Kd3 f4 h5 c6 c3 f5 e5+ f6 b3 c7 c2 Na3 b1Q Nf3 c1R Nd4 b2 Nc6 e3 Nb5 e2 Nca7 e4 Qg1 Ne7 f7 e3 Kf6 Na6 g5 Nb4 g6 Qd5 g7 Qc4 g8N Bg4 c8R Re1 Qg3 Rg1 a3 Kc2 d4 Kd2 d5 Qbd3 d6 b1Q d7 Rh7 Qg2 Ke1 d8R Rh8 Rc5 Rh7 Qe4 Rh6+ Qg6 Rc8 Ra2 h3 Rd2 h4 Rh5 Rc7 a4 Rc5 Rd6 Re5 Ra6 Re4 Rh2 Qbb3 Rf2 Qb2+ Re5 Qbd4 Rf5 Qdc5 Rh5 Qb6+ Re6 Qdd5 Rd6 Nd3 Rc6 Nb2 Re6 Nc6 Re8 Ba3 f8Q Qdd3 Qd6 Rd4 Re7 Re4 Rh7 Ne7 Rh8 Qcb3 Nc3 Rb4 Ncb5 Qbc4 Rd1+
1bb1Q3/r3N3/qnQQ3p/2p1K1Np/1PRr4/1np4n/p1QR1n1k/R5b1 b - - 0 1 legal: proof: c4 b5 h4 d5 e4 dxc4 a4 bxa4 d4 e5 h5 g6 d5 gxh5 Be3 f6 Bd4 exd4 e5 f5 Bd3 Kd7 Bc2 Ke8 Be4 fxe4 Ke2 Kd7 f4 a5 b4 c5 g4 e3 Kf3 h6 Ke4 a3 e6+ Kd6 g5 c3 e7 e2 e8R e1B g6 a2 g7 a4 f5 d3 f6 d2 f7 a3 Rh4 Nf6+ Kf4 Ra7 g8Q Qb6 Rh3 Ne4 Rh4 Nf2 Qc2 d1N Re2 Qa6 Rd2 Nd7 Nf3 Nb6 Nd4 Nh3+ Ke4 Rh7 Qg2 Bf2 Nc6 Bg1 Ne7 Rd7 Kf5 Ndf2 Rc4 Bg7 f8Q Be5 Qe8 Beh2 Kg6 Ke5 d6 Ra7 d7 Rh8 Qf7 Rd8 Qe8 Bf4 Qc6 Bg3 Rdd4 Bf4 Nd2 Bfh2 Rc1 a1N Ne4 Kf4 Kf6 a2 Ng5+ Kg3 Rd2 Nb3 Rb1 Qa3 Ra1 Qa6 Qd6+ Kg2 Qe6 Bb8 Qc6+ Kh2 Kf5 Rc7 Ke5 Rb7+ Qd6 Ra7 Qeg6 Rf8 d8Q Rf4 Qde8 Rg4 Qc6 Rd4 Qge8
1Nk2q1r/1qPr4/B3NNbN/1q1qB2b/2N1p2r/4Kn1N/2q2r2/2n4Q b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 a3 b5 e6 g6 Nh3 Bh6 Qh5 Bd2+ Ke2 fxe6 Qh4 e5 Ng1 e4 Qg5 b3 Qc5 b2 Qd6 b4 Qg3 b3 Qd3 Bf4 Qd1 Bd2 f4 g5 f5 Bb4 axb4 Ra2 Ke1 Ba6 Kd2 Qa5 Nc3 Bb5 Qg4 Nf6 Bd3 Qa8 Kd1 Kd8 Be3 Qa4 Ke2 Bc6 Rf1 Ke8 Nb1 Qa5 Ke1 Qd8 Qd1 Bb7 Bc1 Ng8 Rf4 Ra8 Bf1 Bc8 h4 h6 g4 gxf4 g5 h5 Rh2 Rh6 Rg2 Rh8 Rg4 hxg4 Ke2 d5 c4 Kd7 h5 e5 f6 e3 f7 e4 b5 d3+ Ke1 d2+ Ke2 g3 b6 d4 g6 g2 h6 Nc6 h7 Nb4 g7 Na2 c5 Nf6 g8N Ra7 b7 Qf8 Ne7 Ng4 Nd5 Ne5 Nc7 Nf3 Nc3 b1Q Na8 b2 Nh3 g1Q Nd5 Qg5 Qb3 Qc2 Nac7 b1Q Bg2 d1B+ Kf1 e2+ Kf2 d3 Bf1 d2 Na8 e1R Bb2 Nc1 Ba6 Rh1 b8N+ Kd8 c6 Rd7 Nf6 Qb5 Qa4 Qb7 Ba1 Q1b5 Be5 Be2 Qa3 d1Q Nb6 Qdd3 Qa1 Qdd5 Ng5 Rh4 Nh3 Nd4 Qb1 f3 Ke3 f2 Nc4 f1R Qa1 Bh5 c7+ Ke7 Qb1 Rf2 Qa1 Nf3 Qb1 Qd8 f8N Qe8 Ne6 Qf8 Qa1 Rd6 Neg5 Bf5 Ne6 Rd7 Qb1 Rg8 h8N Bfg6 Nf7 Rh8 Ng4 Ke8 Nfh6 Rd8 Nc6 Kd7 Nb8+ Kc8 Nf6 Rd7 Qa1 Ne2 Qd1 Nc1 Qh1
Bbq5/1n2KN1r/2P3q1/qpB1kr2/6BB/3R2nb/rr2B1qp/4RrB1 b - - 0 1 legal: proof: d4 a5 h4 g5 e4 c5 g4 cxd4 b4 axb4 Nd2 f5 Ndf3 fxe4 h5 h6 Nh4 Ra4 Qd2 gxh4 g5 Ra6 g6 Ra8 Qg5 hxg5 Kd2 e5 a4 Ke7 c4 Kf6 f4 b5 h6 d5 h7 b3 f5 d3 Ke3 h3 g7 h2 a5 b2 c5 b1Q a6 d2 c6 d1R a7 g4 Bd2 d4+ Ke2 g3 Bg2 e3 Kf3 e4+ Kf4 e2 Kg4 e1R Bc1 d3 Be3 d2 Bh6 e3 Kf4 e2 Bf1 g2 Nh3 g1Q Ng5 Nd7 Ra4 Nc5 Rb4 Nb7 Rd4 Qg2 Nf7 Ne7 g8B Be6 Rd7 Qc8 Rd3 Qc2 Rg1 Rb1 Rh1 d1R Bg5+ Kg7 Ke5 Rb2 f6+ Kg6 Rg3 Bh3 Rd3 Nf5 Bh4 Ng3 Rg1 Rd2 Rh1 Rb8 a8B Rc1 Rg1 e1Q+ Be2 Bc5 Rf1 Ba7 Rh1 Ra1 Rf1 Raa2 Rg1 Qa1 Re1 Qcb1 Bg4 Rf2 Be2 Rf1 Bg4 Qf8 Ke6 Qc8+ Ke7 Rf5 Nh6 Rf1 Bc4 Rf8 f7 Kg7 Rd7 Qg6 Bce2 Rf5 Rh1 Qe1 Rd3 Qa5 Rhd1 Nd8 Re1 Rb7+ Rd7 Bb8 h8B+ Kh7 B8f6 Rc7 Bfg5 Kg7 Be3 Ra7 Bg1 Nb7 Rd2 Rh8 Rd3 Rh7 Bef3 Ra1 Re6 Rf1 Re1 Qad2 Bd1 Raa2 Bde2 Qa5 Rd8 Qh5 f8B+ Kg6+ Nf7 Qg5+ Ke8 Kf6 Bfc5 Ke6 Nd6 Ke5 Nf7+ Kf4 Kf8 Qg6 Ke7 Rh8 Ng5 Ke5 Rd3 Rh7+ Nf7+
brR4b/K1Bq1b2/2Pr2pB/1qp1rpQ1/3q1Rn1/1B1B1k1B/3n2q1/4B3 b - - 0 1 legal: proof: g4 e5 b4 a5 c4 axb4 f4 exf4 c5 h5 Nc3 hxg4 Nf3 d6 Ng5 b3 Nge4 c6 Nb5 cxb5 c6 b4 Nc5 dxc5 Kf2 Ke7 a4 Kd6 e4 Ke5 h4 b5 d3 f5 a5 b2 h5 b1Q a6 g6 a7 g3+ Ke2 b3 h6 b2 h7 g2 Rh4 g1Q Qd2 b4 Bh3 b3 Rg4 Kd4 e5 Bb7 e6 Nd7 e7 Ndf6 e8B Bg7 Bf7 Rb8 a8B Nh6 Bd5 Rg8 h8B Qd7 Bf7 Ke5 d4+ Ke4 d5 Qd4 d6 Rge8 Bg8 Re5 Ra4 Qe8 d7 Qc2 d8B b1R Bc4 b2 Bb3 Qd7 Bc7 Ra1 Ra2 b1B Rb2 Ba2 Rb1 Bc8 Bb7 Qcb2 Rh4 Nhg4 Ba6 Bb7 Bb5 Ba8 B5c4 Bf8 Bg7 Qc2 Bh6 Bg7 Bb2 Bh8 Bc3 Qb2 Rh1 Rd1 Bb4 Qa1 Qc1 Qg1 Be1 Rd6 Ba6 Qad4 Bb5 Qb4 B5c4 Qb5 Bd3+ Kd4+ Kd2 f3 Kc2 f2 Qg5 f1Q Kb2 Qc4 Ka3 Qgg2 Rh2 Qc3 Ka4 Ne4 Rh1 Qcb2 Ka5 Nd2 Ka6 Qf4 Ka7 Ke3 Rh2 Kf3 Rh1 Qfd4 Rh2 Qh1 Re2 Qg2 Re4 Red5 Re8 Re5 Rc8 Qb1 Bbc2 Qb5 Bb3 Ne3 Re4 Ng4 Bbc2 Bc4 Bb3 Bf7 Rf4+
3rr1k1/rn1Rb1N1/n4b2/3K1NQ1/1R6/5pRq/N1Npp1nP/n2R4 b - - 0 1 legal: proof: d4 a5 b4 c5 g4 cxd4 a4 h5 Ba3 hxg4 Bc1 b5 axb5 axb4 Qd2 Bb7 Qd1 Ba6 bxa6 e5 f4 Ne7 f5 Ng8 Bf4 exf4 e4 Rh7 e5 Be7 e6 Bf8 e7 Rh6 Bc4 Rh8 Be6 fxe6 Ke2 Kf7 Kd2 Qe8 Ke1 Qd8 Kf2 g5 e8N d5 c4 d3 a7 g3+ Kf3 b3 f6 g2 c5 e5 c6 g4+ Kf2 b2 c7 f3 Ke3 g3 c8N d2 Ne2 g1N Ne7 e4 Kd4 g2 Ra3 e3 Ng6 Ne7 Qb3 d1R+ Kc5 Nh3 Qc4 g1B Ra5 Nc8+ Nd6+ Kg8 Qf4 d4 Ra3 d3 Nbc3 b1N Kd5 Nd2 Qg5 Nb3 Nd4 e2 Nc2 Qd7 Na2 Bd4 Ra4 Na1 Rb4 Na6 Rf1 Qh7 Ne8 Be7 Ng7 Nd6 Nh4 Nb7 Nhf5 d2 Rh1 Re8 a8R Rc1 Rd8 Nf4+ Ke4 Rg1 Rd7 Ng2 Kd5 Re1 Rg1 Qh3 Rf1 Rb1 Re1 Rb3 Rd1 Ra3 f7+ Kh7 f8R Bdf6 Rg1 Rd8 Rf7 Rhe8 Rd1 Kg8 Rd6 Bf8 Rfd7 B8e7 Rc6 Nb8 Rcc4 Ra7 Rg4 Na6 Rg3
1N6/3N2qn/bq5k/b1R1r3/1Rqn1RRr/q1P3rb/3N1KNQ/1q1b1n2 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 e4 f1N+ Ke2 b5 h4 f5 a4 Kf7 a5 Kg7 c3 d5 e5 g3 a6 f3+ Ke1 f2+ Ke2 d3+ Kf3 b3 g6 d2 a7 b2 h5 f4 e6 b4 e7 d4 e8N+ Kh6 g7 b3 Ke2 f3+ Kd3 g2 Nh3 g1Q Ke4 d3 Nd6 Nc6 Rh2 Qe7+ Kf4 Nf6 g8R Ba6 Nc8 Qgg7 Nb6 Nh7 Qe2 d1B Nd7 d2 Ra5 Re8 a8N Nd4 Nb8 Qa3 Rc5 Re5 Nb6 Bd6 Rf8 Bc7 N6d7 Ba5 Rh1 Ng3 Rf5 f1Q Qh2 f2 Rg1 Qc4 Rg2 Nf1 Rg4 Ne2+ Kf3 Nd4+ Kg2 Rg8 Nf4 Rh8 Rg3 Bg4 Rf7 d1B Nd2 b1Q Rf8 Be6 Rg4 b2 Rf7 Qbg6 Rf6 Bf5 Rb6 b1Q Rb4 Ne3+ Kg3 f1R Ng2 Rg1 Kf2 Qb6 Rf4 Bh3 Rg4 Nf1 Rf4 Kg5 h6 Nf6 h7 Kh6 Ne1 Rg3 Ng2 Rg8 h8R+ Nh7 Rg4 Rge8 Rg8 Re4 Rf4 R8e5 Rf3 Rh4 Rf4 Qgf7 Rg5 Qg7 Rgg4
bN1k2n1/1q3n1b/p1NP2pN/n4r2/2R1R3/1QRbb3/K3bRN1/1r1q3q b - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 g5 bxa4 g6 e5 b3 e4 Bb2 e3 Bg2 Ke7 Bf6+ Ke8 Be4 gxf6 g7 f5 Bd3 f4 Bg6 hxg6 Qc2 exf2+ Kd1 Bb7 Kc1 Ba6 Qd1 Bc8 Kb2 f1B e4 c5 h4 f5 d4 a3+ Ka2 a6 h5 f3 b4 f4 d5 f2 e5 f3 h6 c3 e6 c2 h7 c1Q b5 c4 e7 c3 b6 c2 d6 Be2 b7 f1B Rh2 f2 Qe1 Qd7 Rh5 Qd1 Re5 c1Q Nd2 Nc6 b8N Nd8 Re3 Qb7 Nc4 Be6 Qb4 Bg2 Qe1 f1B Rd3 Nf7 Qb4 Qh6 Rd4 Qh1 Rc1 Bd3 Qb2 Bfe2 Qb3 Bc6 Ne3 Bec4 Ka1 a2 Nf3 Ra7 Kb2 a1N Rc3 B4d5 Rdc4 Be6 Qb5 Nb3 Ka2 Na5 Qb3 Ra8 Nd4 Bcf3 Nbc6 Rb8 Ng2 Kd7 e8R Be7 Rc1 Bg5 R1c3 Be3 Rf8 Bed5 Re8 Bfe4 Re6 Rf8 Nb8+ Kd8 Re5 Re8 Rf5 Re5 Rf4 Rf5 Rf2 Ne7 g8N Be6 Nh6 Rf8 h8R Ng8 Rc1 Rb5 Qa3 Rb1 Rc3 Ne5 Nb3 Qg7 Qa4 Rf5 Qb4 Ba8 Nd4 Qb7 Ng4 Bf7 Rh4 Nf6 Qb3 Bg8 Nh6 Nf7 Rg4 Bh7 Re4 Ng8 Ndc6+
4nr2/1Q2B2K/3RR2n/1n1rnpBR/q1rbq3/P2b3b/1p2bkR1/B6B b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h5 f6 hxg4 Bh6 e6 Bg5 Ne7 Bc1 Ng8 e4 Rh5 e5 Ra6 Ne2 Rh8 Ng3 Ra7 Nd2 Ra8 Nde4 Ra7 Nc5 Ra8 Nf5 exf5 e6 Na6 e7 Nb8 Ne6 fxe6 Bh3 Kf7 Bg2 Ke8 Bf1 Kf7 Kd2 Kg6 Kd3 Kh5 e8R Kh4 c4 d5 c5 b5 f7 g5 c6 b3 a3 b2 c7 b1B+ Qc2 e5 h3 Kg3 h4 e4+ Kd2 d3 Ke3 b4 h5 d4+ Kd2 e3+ Kd1 e2+ Kd2 b3 h6 Na6 h7 Bb7 c8R Bg2 Rh6 Nc7 Qc5 Ra5 Qb5 Bc5 f8B Qd7 Rcd8 Bh3 Rh5 Kf2 Bg7 g3 Bg2 g4 Rh4 Nh6 Bf3 g2 Qb4 g1R Bf8 g3 Bb7 g2 Qc3 Qa4 Ree4 Ne8 Bg7 Rf8 Bb2 Rc1 h8B g1N Qb4 Rc4 Rd6 Bc2 Ra2 Nf3+ Kc1 Bb6 Ba1 Rd5 Bf6 Ne5 Bg5 e1Q+ Kb2 d2 Rh5 d1B Bhf6 d3 Be7 d2 Ba8 Ba5 Qb7 Be2 Re3 d1N+ Kc1 Nd7 Ree6 Bb6 Rb2 Bcd3+ Rc2 Qh1 Kd2 Nc3 Rb2 Nb5 Rc2 Rdd4 Ra2 Kf1 Ke3 Ne5 Rd2 b2 Rc2 Be4 Kf4 Rd5 Rd2 Bd4 Rc2 Bd1 Rg2 Bb1 Bgf6 Be2 Kg5 Neg4 Kg6 Ne5+ Kh7 Bbd3 Bg5 Ke1 Rf2 Qe4 Rg2 Qe3 Qd7 Rdc5 Rg4 Kf2 Bh1 Qe4 Qb7 Rd5 Rg2+
q1b1r1Bq/4Nn1k/4rp1B/1R2rn1B/3rn2b/3bp3/2RBRP1p/4KR2 b - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 a6 b5 axb5 h5 bxc4 Qg4 c3 Qh4 h6 g4 Be6 Na3 Bd7 Nc4 Bc8 Ne5 Qd7 Nef3 gxh4 g5 Qd5 g6 Qd8 Ng5 hxg5 a4 c5 d4 b5 h6 e5 a5 e3 a6 b4 d5 c4 d6 e4 h7 c2 g7 h3 a7 b3 Ke2 b2 Rb1 g4 Rh2 g3 Rg2 h2 Nh3 c3 Nf4 Na6 Ke1 e2 Rg1 g2 Nh3 Be7 Nf4 Nc5 Be3 c1N Ng6 c2 Nf8 Bh4 Ra1 b1B Bh6 f6 d7+ Kf7 Be3 N1b3 Bg5 Nh6 Ra3 Nd4 Ne6 Kg6 Re3 Nf7 Nc7 Re8 h8R Nf5 Nd5 Re5 Rh5 Qh8 Bh6 Kh7 d8B Rb8 Rh1 g1Q a8R Qg2 Ra2 Qf3 Ba5 c1R+ Kd2 e1R Ne7 Rc4 Re2 Bd3 Rc2 Re6 Bh3 Ra8 Bg4 Rd4 Rf1 Re5 Rg5 Ra6 Bh5 Rae6 Nd5 Rb1 Ne7 Rb8 Kd1 e3 Ke1 Qa8 Bb4 Ne4 Bd2 Bb7 Rc5 Re8 Rc2 Nfg3 Rf5 Bc8 Rg5 Ra5 Rb5 Nf5 Rbb2 Rad5 Rb5 Rde5 g8B+
1qN1Nq1n/b4b2/n2qQ3/2QrN2k/Pnq2n2/Qb4Qr/QKR2p2/8 b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 b4 a5 a4 axb4 Ra3 bxa3 g4 f3 Bb2 g6 Be5 g5 Bf4 h6 Bh3 gxf4 g5 h5 Bg4 hxg4 Qc2 f2+ Kd1 Nh6 Kc1 Ng8 Qb3 Be7 Qd1 Bf8 d4 f1Q h4 c5 e4 f5 g6 b5 h5 b4 e5 c4 d6 a2 g7 Kf7 h6 Kg6 h7 a1N d7 b3 e6 c3 d5 f3 d6 g3 e7 g2 e8N f4 Nh3 g1N Nf6 c2 Na3 b2+ Kd2 b1Q Kc3 c1Q+ Nc2 f2 Qf3 Ne7 Qe2 f3 Rh2 Na6 Qe6 Qb8 Ng5 Nh3 Ne8+ Kh5 g8Q Ng6 Nf7 Be7 Rg2 Nhf4 Ne5 Bb7 Qa2 Bd5 Qe6 Bb3 Qa3 Qcd1 Nd4 Nc2 Kb2 Ncb4 Nb5 Qc4 Na7 f1B Rc2 f2 Nc8 Bg2 Qa2 Bd5 Qa3 Bg5 Qa2 Qe7 d8Q Qf8 d7 Be7 Qa3 Bc5 Qc7 Ba7 d8Q Qdd3 Qdd7 Qg3 Qg8 Bf7 Qc5 Qh2 Qe6 Qbd6 Ne7 Rd8 Nc8 Qb8 Qg7 Rd5 Qa2 Rg8 Qa3 Nh8 Qg2 Rg6 Qg3 Rh6 Qa2 Qh4 Qa3 Qhe7 Qa2 Qed6 Qa3 Nhg6 h8Q Rh7 Qg8 Nh8 Qc3 Rg7 Q3e3 Rg3 Qa2 Rh3 Qgg3 Nc6 Qca3 Ncb4 Qc5
3qk3/r2rrq2/1R1RQnQ1/1N2Qp1b/7b/n2RrP1Q/1qR1b3/1q3n1K b - - 0 1 legal: proof: b4 g5 d4 e5 Kd2 a5 d5 e4 d6 axb4 Nc3 e3+ Kd3 cxd6 Nb1 d5 Bd2 exd2 Ke3 d4+ Ke4 Qa5 Kd3 Qd8 f3 g4 Nc3 g3 Ne4 Ra4 Nf2 Ra8 Ke4 gxf2 g4 h5 g5 Qc7 Bh3 Ra3 Bg4 Qa5 Kf4 hxg4 Kg3 Qd8 Kg2 Ra8 h4 f1N a4 d5 c4 b5 e4 g3 c5 b3 g6 d3 g7 d4 a5 b2 a6 b1Q a7 b4 h5 b3 h6 b2 h7 Nc6 e5 Nf6 g8Q Bg4 e6 Nb4 e7 Bh5 c6 Nc2 c7 Na3 Qe1 d1Q c8R d2 Rh3 d3 Ra2 Qb3 Qe2 d1B Rc3 d2 Qe5 Be2 Qg6 d1R Kh1 Rd7 Rd3 Qa1 Rd6 b1Q Rc2 Qab2 Rb6 Rg8 h8Q Rg7 Rh4 Qe6 Rd4 Qea2 Rdd6 Qd5 Nh3 Qc4 Nf4 g2+ Kg1 Rh7 Ne6 Qd5 Nd4 Qc4 Kf2 g1R Nb5 Rg5 Qe6 Re5 Kg2 Re3 Kh1 Rg7 Qhh6 Qd5 Qh3 Rh7 Qhg5 Bh6 Qe5 Bg5 Qee6 Bh4 Qe5 Rc8 a8Q Rcc7 Qc8 Ra7 Qc6 Ng4 Qge6 f5 Qg6+ Qf7 Qc4 Qc3 Qce6 Nf6 Qhh2 Rdc7 Qg7 Qg6 Rd3 Qcb2 Qh3 Rcb7 Q6d6 Rd7 Qh6 Kf7 e8R Rg7 Re6 Qh7 Qc6 Kf8 Qg6 Rge7 Qcd5 Qf7 Red6 Ke8 Qde6
8/5b2/1b1qN2K/1rb1nq2/k2B1r2/1pQQN2Q/NPpq1n1Q/r2N2nq b - - 0 1 illegal: No proof kernel
3K3N/Q2Rp3/rp1nqnQ1/3rPn2/1NNp3b/r3qbpk/4Q2Q/3b3N b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 c5 d4 cxd4 a4 f6 e5 f5 Bg2 h6 Be4 fxe4 f5 h5 Bf4 gxf4 g5 Na6 Ra3 Nb8 Rg3 Bg7 Rg2 Bf8 Rg4 hxg4 Kf2 Kf7 h4 d5 c4 b3 a5 d3 a6 f3 Kg3 e3 Kf4 e2 f6 Kg6 a7 Kh5 f7 e1Q c5 f2 g6 f1N g7 b6 c6 b2 c7 d2 Ne2 Nc6 Nbc3 b1R Na2 Ra1 Nb4 Nf6 g8Q Bg7 f8Q Bb7 Kf5 Na5 Ke6 Ne3 c8N Ra3 Nd6 Nf5 Nc4 Qd6+ Kf7 Rd8 a8Q d4 Qa7 Bf3 Ng3+ Kh6 h5 Kg5 h6 Nb7 h7 Qe3 Qg1 d1B Rh6 Kf4 Nh1 g3 Qh2 Kg4 Qe2 Ra6 Rg6+ Kh3 Qe8 Bh6 Qb5 Bg5 Qh2+ Kg4 Rh6 Ra8 Qg7 Rhd8 h8N Qc6 Qg6 Rd5 Qa4 Qc8 Qac2 Qc6 Qce2 Nbd6+ Ke6 Ra3 Qb8 R8a6 Qa7 Nb5+ Kf7 Qe6+ Kf8 Nh5 Ke8 Nbd6+ Kd8 Nf6 Qh7 Bh4 Qg6+ Qg5 Nd3 Nc8+ Kc7 Ne4 Qf6 Qe3 Qf7 Qg6 Nb4 Qg8 Rd6 Nf6 Rd7 Ncd6 Qe8 Qf7 Kd8 Qe6 Qhf2 Kh3 Qg6 Qb3 Qg1 Qe3 Qgh2+
2b1qQ2/1B2BB2/2R1nqnb/p2Br1p1/1Q1br1P1/8/pQ2pp1K/3k1bQ1 b - - 0 1 legal: proof: d4 b5 b4 c5 a4 bxa4 g4 cxd4 Bg2 h5 Bf1 e5 Ra3 h4 Rg3 hxg3 f4 f6 e4 Kf7 Nh3 Ke7 f5 Kf7 Nf4 Ke8 Nd2 Qe7 Nc4 exf4 e5 Qd8 e6 Rh6 Ne5 fxe5 Qd3 Rh3 Qd1 Rh8 c4 Ke7 h4 Kf6 h5 Kg5 c5 d5 f6 a5 c6 d3 e7 e4 e8B g2 Kf2 g1B+ Kg2 d2 h6 a3 h7 d4 b5 d3 c7 f3+ Kh3 Kf4 f7 Ke3 b6 g5 b7 a2 Qc2 Bh6 f8Q Ne7 Qb1 Nd7 b8Q Nc5 Bf7 Ne6 Q1b4 Ng6 Qa4 Qf6 Qfb4 Re8 Bb2 d1Q h8Q d2 Bc1 Qe2 Bb2 d1B Ba3 Ra6 Qb1 Kd2 Qf8 Bd4 Be7 f2 Bg2 e3 Kh2 Rd6 Qa3 Rd5 Qab2+ Bc2 Rf1 Re5 Rc1 Qb5 Bd5 e2 Qa3 Be4 Rc6 Bg2 Qg1 Bf1 Qb2+ Kd1 Qb4 Bd7 c8B Qa4 Bb7 Bc8 Bd6 Re7 Rc7 Qe8 Rc6 Rd7 Be7 Re4 Bc4 Rd5 Qb2 Rde5 Bd5 Ng7 Qd6 Ne6 Qdb4
2R5/1P2k2B/3nr3/1b2n1R1/1B3R1p/Rb1pq1Bp/2q5/nRrB1Kbq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 Qd2 Ke7 Qd3 Ke8 g4 h6 Qg3 Bd6 Qh4 gxh4 Nh3 Bf8 Ng5 hxg5 Nd2 Ke7 Nf3 h3 Nh4 gxh4 g5 Ke8 g6 Qf6 Ra2 Qe7 Ra1 Qd8 e4 d5 b4 f5 c4 a5 c5 f3 b6 a4 e5 d3 g7 f4 c6 f2+ Kd2 a3 b5 f3 b7 a2 b6 d4 e6 Nf6 g8B Nbd7 b8B Bc5 h6 Ra6 h7 Ne5 b7 Ne4+ Kd1 d2 e7 Nd6 c7 Be6 Be2 f1B c8R f2 Bg4 Bb5 Ba3 Ba7 Rb1 a1N Rg1 Kd7 e8R Qb6 Red8+ Ke7 Rf8 Bd5 Rf4 Bb3+ Rc2 Qc5 Bb4 Qc3 Bf3 Qe3 Rg5 Bb6 Bgd5 Rc8 h8R Rc3 Bde4 Nd7 Rfg4 Qd3 Ba7 Ne5 Ba5 Ndc4 Bb4+ Bc5 Bh7 Re6 Bb6 Nd6 Ra8 Rc4 Ra3 Rc3 Re4 f1Q+ Re1 Qg1 Rf1 Qh1 Bg4 Qg3 Ba7 Rc4 Ke2 Qd3+ Kf2 d1Q Bb6 Qc1 Bd1 Qdf3+ Ke1 d3 Rc3 Bg1 Bf2 Qc6 Bg3 Qf4 Rf2 Qe3+ Kf1 Rc5 Rc4 Qc8 Rcf4 Rc1 Rf8 Qcc5 Rc8 Qc2 Rf4
1R1R1N1N/1K3b1p/5r1p/1nr4b/N3r1qk/3P1Rq1/4rbpR/R1b2N2 b - - 0 1 illegal: No possible last move, all moves rejected
1NB1b3/K3p1Bn/PnN2k2/qqn5/q6P/Q1R2br1/5Rn1/1rq2r1R b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 h5 Bg5 fxe6 Bd2 e5 Bc1 e4 f4 g5 c3 bxc3 Kf2 g4 Ke1 Bh6 g3 Bg5 fxg5 h4 Qa4 hxg3 Qc2 Na6 Qd1 Nb8 Ke2 Kf7 h4 b5 a4 d5 a5 g2 a6 e3 Kd3 c2 g6+ Kf6 g7 e2 Bf4 c1N+ Kd2 e1N Rh3 g3 Qa4 b4 Qb5 d3 Ke3 d2 Kd4 d1B Kc5 b3 Qd7 d4 Bd3 b2 Be3 Bf3 Qd5 Nd7+ Kc6 Qa5 Bd2 Rb8 Bg6 d3 Ra2 Nb6 Bf5 Nb3 Na3 b1Q Nc4 Nc5 Bh6 d2 Rh1 d1Q Ne2 g1R Ne5 g2 Nd4 Rf1 Rf2 g1Q Kc7 Rh7 Ndc6 Ng2 Qa2 Qbb5 Qa3 Bd7 Bg4 Be8 Bc8 Qda4 Nd7+ Kf7 Bf4 Rh6 Be5 Nf6 g8R Nh7 Rg3 Rg6 Bg7 Ke6 Rc2 Qe3 Rf2 Qc1 Rgh3 Be2 Rd3 Bf3 Rc3 Rg3 Bb7 Rd8 Ndb8 Rdd1 Bc8+ Kf7 Bf8 Kf6 Bh6 Nd3 Kb7 Nc5+ Ka7 Qcf4 Nd8 Rb1 Ndc6 Qc1 Bg7+
Q1N2q2/Pr2rq2/7r/N2k4/R3q1B1/n1pbRrq1/2B1P3/nnKn1B2 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 h4 c5 d4 g5 a4 gxh4 Ra3 e5 Rc3 exf4 Ba3 bxa3 Rc2 dxc4 Ra2 c3 Ra1 c4 Ra2 Bf5 Ra1 Bc5 dxc5 Bc8 g4 Ke7 c6 Ke6 c7 b5 g5 h5 g6 f5 g7 h3 a5 h2 a6 f3 a7 h4 Qa4 h3 Qd1 f4 Qa4 a2 Bg2 f2+ Kf1 b4 Qe8+ Ne7 Nd2 b3 Bb7 b2 Be4 b1N Bb7 c2 Qh5 c3 Bf3 Nbc6 Nb3 Nd5 Na5 Nd4 Nb7 Rh6 Nd6 Nb5 Nf7 Qf8 g8B N5a3 Bg2 Ba6 Nf3 c1Q+ Ne1 Re8 Bh7 Bd3 Nh8 Qe3 Nf3 Re7 Nd2 Qg3 c8B+ Kd6 Rg1 h1Q Nb3 h2 Qe8 Ke5 Bgh3 Qe4 Na5 h1R Bcg4 Rb6 Bhf5 Rb7 Qa8 Rh2 Bg2 Rh6 Ng6+ Kd6 Bd7 Re8 Ba4 Qge3 B4h3 Nc4 Ne5 Ree7 Bf3 Kc5 Rg3 Kd6 Kg2 f1R Bc2 Rf2+ Kg1 Kc5 Bh5 f3 Nf7 Qg5 Nd6 Nde3 Nc8 Kd5 B5g4 Qh4 Kh1 Rf1+ Kh2 f2 Rf3 Rd1 Rg3 f1Q Rf3 Qhe1 Rg3 Q1f7 Rf3 Qh1+ Kg3 Qg1+ Bg2 Qh2+ Kf2 Qhf4 B2h3 Rg1 Bf1 Rg2+ Ke1 Rf2 Bgh3 Qg3 Bf5 Ng2+ Kd1 Nge3+ Kc1 Nd1 Re3 Rf4 Ba4 Rf3 Bg4 Nbd2 Rb1 a1N Rb4 Na3 Bc2 Ndb1 Ra4
2qq3q/5K1N/b1Nq1p2/2k3r1/1qp2Bnb/4PP1R/B2Q2b1/B3r1nR b - - 0 1 legal: proof: c4 d5 d4 dxc4 a4 b5 axb5 e5 g4 exd4 b4 g5 h4 a5 h5 axb4 h6 Bxg4 Be3 Bc8 Bf4 g4 Bc1 g3 Ra3 Bxh6 Ra1 Bf8 Kd2 Kd7 e3 Kd6 b6 c5 f3 h5 b7 g2 Rh4 d3 Qb3 c3+ Kd1 d2 Ke2 d1Q+ Kf2 c2 Kg3 Nc6 Kf4 Nf6 Kg5 Rg8+ Kf4 Be7 Rh2 h4 Qa2 h3 Qc4 b3 Ne2 g1Q Rg2 b2 Ra7 h2 Qb5 h1B Nbc3 b1Q Nd4 Qb4 Qd3 Qh2+ Rg3 Bg2 Nd5 Qh8 Ra1 Ng4 Rh3 Bh4 Bb2 c1Q Qd2 Rg5 Bc4 Ra2 Rb1 Ra1 Nf6 Qcc2 Nh7 f6 Ba2 c4 b8B+ Kc5 Rh2 Ba6 Rh3 Qg6 Be5 Qge8 Ke4 Qed7 Bf4 Q7c8 Rc1 Rb1 Ba1 Qd6 Qb2 Qdd2 Rch1 Re1 Qc2 Qd1 Qd2 Qdd8 Nf5 Nd4 Ne7 Ne2 Nc6 Ng1 Qc1 Qa8 Qd2 Rg6 Kf5 Rg5+ Ke6 Qac8+ Kf7 Qd6 Qe2 Qdd8 Qf2 Q1d6 Qd2
Kb1b2qq/Bn1qr2N/p1RN2BP/2Q4P/1Rnb4/1p4B1/b1p5/k2r4 b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 h5 gxh5 d5 Qc2 dxc4 Qa4+ Ke7 Qd1 Ke8 a4 a5 b4 axb4 e3 fxe3 a5 Bd7 a6 bxa6 Ke2 Bh3 Ke1 Bc8 Ke2 Ke7 Kf3 Ke6 Ke4 g5 h4 f5+ Kf3 Ke5 d3 Kd4 h6 c5 h5 g4+ Kf4 g3 Bb2+ c3 Nd2 e2 Rb1 e1B Be2 c4 Ra1 g2 Bc1 c2 Kf3 Kc3 d4 f4 Ke4 f3 d5 f2 d6 f1Q Kd5 Nf6+ Kc5 Nd5 Ndf3 Bf2+ Nd4 Nb6 Bg4 Be7 Ra2 Qd3 Nh3 g1Q Ba3 c1B Be6 Re8 Qg4 Nc6 Qg5 Bf4 Rb2 Na5 Bf7 Nb7+ Kc6 Be6 d7 Bb8 Qc5 Qg8 Nf5 Bd4 Bg6 Bg5 Rhh2 Re7 Nd6 Qh8 Rh1 Qdg8 d8B Ra7 Re1 Rd7 Bc7 Bd8 Rbb1 Kc2 Rf1 c3 Ng5 Ba2 Rf6 Nc4 Nh7 Re7 Rb3 Rd7 Bb2 Kb1 Bc1+ Ka1 Be3 c2 Bf2 Qe6 Bb6 Qeg8 Bg3 Re7 Re6 Ra8 Ba7 Qf5 Ra3 b3 Ra4 Qh3 Rf6 Re1 Rb4 Rd1 Rf8 Qhe6 Rf6 Qef7 Re6 Qd7+ Kd5 Bb6 Ke4 Nba5 Nf7 Bd6 Kd5 Re8 Rf6 Bb8+ Rd6 Qe7 Rf6 Bd8 Rfb6 Nb7 Kc6 Qe6+ Nd6 Re7 Qb5 Nc5 Qa5 Nd7 Kb7 Nc5+ Ka8 Nb7 Qc5 Qd7 Rc6
1R1kq3/nBN1NP2/6p1/rb2Rb2/bQqbq3/5PK1/3Bpp2/4bR1r b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 Nc6 f3 Ne5 f4 Nf3+ exf3 hxg6 Ne2 g5 Ng1 g4 a4 f5 Bb5 e5 Qd2 e4 Kd1 g3 Qf2 gxf2 Bf1 Nh6 Ra3 Ra7 Rc3 Ra6 Rc6 Ra8 Rg6 Ng8 Rg4 fxg4 Ke2 b5 h4 d5 c4 g3 c5 e3 f5 d3+ Kd1 d2 Ke2 d1B+ Kd3 e2 Ke3 d4+ Kf4 d3 c6 g2 h5 g6 c7 d2 h6 b3 f6 b2 a5 b4 a6 b3 a7 Bb4 h7 Ne7 Rh5 Bf5 c8R Nc6 Nc3 b1Q Kg3 b2 Nd5 Qa2 Ne7 b1Q Rb8 Qc4 Nh3 g1B Ng5 Ba4 Ne6 d1B Bh3 Bb5 Bd2 Bda4 f7+ Kd7 Bg4 Qe8 Nc7 Qbe4 Rg5 Be6 Re5 Bf5 Bc1 Be1 Bd2 Rg8 h8Q Bh2+ Kh3 Rg7 Qf8 Rh7+ Kg2 Bf4 Bh3 Be3 Kg3 Bd4 Bg4 Ba6 Rb1 Rh1 Ra1 Rc8 a8R B6b5 Rb8 Kd8 Rd1 Bd7 Be6 Na7 Bd5 Bf5 Bb7 Kd7 Ncd5 Rc6 Nc7 Ra6 Nc8 Ra5 Qb4 Kd8 Ne7+ Kd7 Bc1 Bd2 Rf1 Be1 Nc8 Kd8 Bh6 Qc1 Bd2 Qc4 Ne7+
q1n1b3/k3RBP1/1b1Q2r1/3r4/3b2nN/2NNrnKP/qB4Rn/n1n1n3 b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 a4 gxf4 g4 e5 d4 c5 g5 cxd4 Nd2 h5 Qg4 hxg4 Ra3 Ra6 Rh3 Ra8 Rh6 f3 Rf6 Qb6 Rf5 Qd8 Rf4 exf4 Kf2 d5 c4 Kd7 g6 Kc6 a5 b5 c5 Kb7 c6+ Ka7 a6 f5 e5 b3 e6 b4 c7 b2 g7 b1N e7 g3+ Ke1 d3 e8N d4 h3 g2 Kf2 b3 Nc4 b2 Ned6 d2 Ne5 d1N+ Ke1 f2+ Ke2 d3+ Kf3 d2 Nef7 Nbc3 Be2 b1Q Nc4 f1N Nfe5 Bd7 c8R Be8 Nd3 Qa2 Ncb2 Nfe3 Rc6 Nc2 Na4 Na1 Ne5 Nb2 Rc4 d1R Rb4 Bc5 Bd2 Nc6 Rd4 Nf6 Nf7 Ne7 Rc4 Rh6 Rh2 Bd4 Be3 Nc8 Rb4 Rg6 Nd6 Ng4 Nb6 Nd3 Bf1 Ne2 Nd7 Nec1 Ne2 g1B Ne5 Rd2 Kg2 f3+ Kg3 f2 Nc3 Ne1 Bc4 Rd1 Bf7 f1N+ Kf4 Rd3 Rg2 Nfh2 Kg3 Nhf3 Rb6 Rd2 Nd3 Re2 Bf4 Re3 Be5 Rb8 Rb4 Rb5 Bf6 Bb6 Re4 Rd5 Re6 Qd7 Re5 Qb7 Re7 Bd4 Ne2 Bb6 Bb2 Bd4 Nc3 Bb6 Re6 Qa8 Re7+ Bc7 Rd2 Kb6 a7 Re2 Kf4 Qc6 a8Q Bd4 Re3 Nfe5 Qa3 Qa8 Na4+ Ka7 Rg3 Bcb6 Rg2 Re4+ Kg3 f4+ Kh4 f3 Kg3 Re2 Nf5 Re4 Rc2 Re2 Rc6 Re3 Nh4 f2+ Kf4 f1N Rc7+ Ka6 Re7 N5f3 Qd6 N1h2 Kg3 Qc6 Nc3 Qa8 Re4 Ka7 Re7+
1bqR3B/Q7/rnb1Rn2/qP6/2b1r3/bPb2n1r/k1q2BK1/1NrR2N1 b - - 0 1 illegal: Other
R2k4/4N2q/RrrPnrb1/4PBb1/Bb1b3n/Q6B/br1n2n1/3K1n1N b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Ba3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 d4 h5 g4 c5 e4 f5 g5 b5 g6 h3 d5 h2 g7 a2 a5 b4 e5 b3 a6 h4 a7 f3 Nh3 b2 Nf4 f2+ Ke2 h3 Qa4+ Nd7 Bg2 f1N Ke1 c3 Qb4 c2 Qc4 c1B Na3 b1N Qd3 c4 Be4 c3 Qd4 c2 Qd1 Qe7 Qd2 Nc5 Qc3 Nh6 g8B Kd8 Ke2 Ne3 Qd4 Be6 Ke1 Qh7 Bf7 Rb8 a8B Rb2 Bc6 Ng2+ Ke2 Nd2 Rg1 h1B Bd3 h2 Rb1 a1B Nh3 f4 Qe3 f3+ Kf2 Nf5 Nb5 Nfh4 Nd4 Rb6 Nf5 Bd4 Rb2 Be7 Bcb5 Rf8 Ba4 Bg5 d6 Ba2 Bg6 Ne6 Bf1 Rf6 Rb4 Bcb2 Ne7 c1R Bf5 Bbc3 Rb3 Bb4 Ra3 Ngf4 Bg2 Rcc6 Ke1 f2+ Kd1 f1N Qg3 Nhf3 Nf2 Nh4 Bgh3 Be4 Rg2 h1R Qc3 Rh2 Nh1 Beb1 Rg3 Nfg2 Rf3 Bc4 Ra1 Bca2 Qa3 Ngf4 Rc3 Re2 Rc5 Nfg2 Ra5 Bd3 Ra6 Be4 Bfg4 Bg6 Bf5 Nb1 Ng3 Rb2 Nh1 Nbd2 Ra8+ Rb8 Qe3 Bc4 Bb3 Bd5 R1a6 Bc4 Ba4 Ba2 R8a7 Rb7 Qa3 Rbb6 Ra8+
1b3Rbq/q1Pb4/1nn2P2/1n3NB1/2r5/1rq1RNB1/b6Q/k1qqn1NK b - - 0 1 legal: proof: e4 h5 b4 f5 d4 fxe4 g4 hxg4 a3 c5 b5 cxd4 b6 axb6 Bh6 b5 Bc4 b4 Ba2 b3 Bc1 bxa2 Kf1 Kf7 Kg2 Ke6 f4 Kd5 h4 Kc4 c3 g5 a4 b5 h5 e5 f5 d5 a5 e3 f6 d3 h6 d2 a6 b4 a7 b3 h7 e2 Nf3 e1Q Nd4 g3 Qg4 d1B Rh2 e4 Rh4 b2 Nc6 Kb3 c4 d4 c5 d3 Qf3 g4 Nc3 b1B Bg5 Kb2 Bh6 e3 Ne7 d2 c6 e2 Nf5 Bb3 Rh3 d1N Qd3 Bd7 Be3 Bd6 Rh1 Ne7 Nb5 Nc8 Rh2 Qc3 Nh4 Nb6 Nf3 Bg8 Rh3 e1N+ Kh1 Bc7 Qd6 g2+ Kg1 Qc1 Qh2 Nc3 Nbd4 Nb5 Nf5 Be5 Bf2 Qf8 Bg3 Qc8 Kf2 g1Q+ Ke2 Qd4 Ng1 Qdd1+ Kf2 Qc3 Bf4 Qd8 Re3 g3+ Kf1+ g2+ Kf2 Be4 Bg3 Bed5 Rc1 a1Q c7 Nc6 Rb1+ Ka2 Rb3 Rb8 a8N Qac1 Rb4 Ka1 Rd4 Nc8 Nb6 Ba2 Nc4 Nb6 Nd2 Bd6 Rde4 Bc5 Re7 Rb7 Rf7 Qb8 Rf8 Qa7 Nh3 Qh5 Nf3 g1Q+ Ke2 Qh1 Kf2 Qg4 Nhg1 Rb8 N3d4 Qgd1 Ndf3 Nd5 Nh6 Qb6 Be5 Ra8 Qg2 Ra3 Nf5 Rb3 Bg3 Qba5 Kf1 Ba7 Qd2 Qh4 Qh2 Nb6 Kf2 Bb8 Kf1 Nd3+ Kg2 Qa7 Kh1 Ne1 Ne7 Bf7 Nf5 Rg8 h8B Rg4 Bg7 Bg8 Bh6 Rc4 Bhf4 Qh8 Bg5
bbb3K1/1b5n/P1r2p2/1Bb2NB1/rRQ5/1b1R3n/P2rq1R1/1bk2Nq1 b - - 0 1 illegal: Other
B5Qq/1b2nn1k/1n2rB2/3b2p1/1N1NP2N/1rbR2b1/1RK1b2P/1r2r2q b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kd2 g5 c4 f5 e4 Kf7 c5 Kg6 c6 d5 c7 b5 Bc4 f3 Ba2 f4 Qa4 f2 Kd3 f1R Qa6+ Bd6 Qb7 b4 Qb5 b3 Qa5 g3 Nh3 b2 Rg1 g2 Kd2 f3 Qc3 d3 Bb3 a2 Ba4 f2 Nf4+ Kh7 Qb4 d4 Na3 b1R Nc4 Re1 Na3 f1Q Nd5 Bg3 Nb6 Ra6 Na8 Ne7 Be8 Nd7 Qc3 Bb7 c8N Nb6 Rh1 g1N Bc6 Rf8 Nc2 Rf3 Qb2 Qh8 Qb3 Rb2 Qe6 Ree3 Bd5 Rb1 Qe5 Ra5 Bc6 Ba6 Qf6 Re5 Na3 Re6 Nb5 Qg2+ Kd1 d2 Nac7 Rf1+ Kc2 Nf3 Ncd6 Ne5 Ba8 Bb7 Qf4 Reb3 Qf8 Nf7 Bb2 Qf3 Rg1 Qh1 Qb8 Rbd1 Rb1 a1B Rg2 Rfe1 Bc3 Bb2 Nf5 Ba1 Na6 Rc1+ Kd3 d1B Rd2 Bf3 Rd1 Be2+ Kd2 d3 Nb4 Bb2 Bf6 Bd4 Rb2 Rb1 Nh4 Bc3+ Ke3 d2 Nd4 Bf3+ Kd3 Be2+ Kc2 Bc4 Rc1 Bcd5 Qc8 Kh6 Qg8 d1B+ Kd3 Be2+ Kc2 Qg1 Rd1 Qh1 Qf8+ Kh7 Rd3 Ra3 Qd8 Rb3 Qg8+
6r1/2n1krb1/3n3R/K3BBp1/1RP1N1bn/1rr2q1N/b2RP1n1/2qn2Q1 b - - 0 1 legal: proof: d4 e5 b4 a5 d5 axb4 d6 cxd6 Nf3 d5 Ng1 d4 g4 h5 f4 hxg4 a3 bxa3 Bg2 exf4 Bh3 Rh5 Bf1 Rh8 Kd2 g5 c4 f5 h4 d5 h5 b5 h6 d3 Kc3 d2 h7 d4+ Kb3 f3 Bg2 g3 Rh5 d3 Ra2 f4 Qf1 d1Q+ Kc3 f2 Rb2 f3 Rb3 d2 Rh3 a2 Rh4 a1R Rg4 b4+ Kb2 Na6 Rd4 Rb8 Qe1 f1N Rd6 f2 Rd7 Qf6+ Rc3 b3 Rb7 Ne3 Rg7 f1R Nf3 Ne7 Rg6 Bg4 Rg8 Nc8 Nh4 Ke7 Bh3 g2 Rg6 g1N Rh6 Nf3 Ng2 Bg7 Nf4 Rg8 h8R Nd6 Qf2 Qe1 Qg1 Nc7 R8h7 Ra7 Rh8 Rab7 Ka3 d1N Ka4 b2 Ka5 Rb3 Nd2 b1B Rc2 Nh4 Bb2 Ba2 Be5 Rc3 Ne4 Neg2 Rd2 Rbb3 R8h7 Nf2 Rh8 Qc1 R8h7 Nd1 Rh8 Bf3 Bf5 Bg4 Nh3 Qf8 Bc8 Rf7 Bf5 Ndb5 Rb6 Nd6 Rb4 Qa8+ Kb6 Qd5 Rh6 Qb7+ Ka5 Qc6 Nf6 Qf3 Ne4
3nb1nb/2N1N2R/2k5/3q1NQR/1K3BqP/1P2q1r1/2b1nq1p/3rnr1B b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 h5 g4 hxg4 f4 b5 f5 bxa4 f6 exf6 Qd2 f5 Qd3 f4 Qh3 gxh3 Kd2 f5 e4 a5 c4 g5 b3 d5 e5 Kd7 e6+ Kc6 c5 a3 e7 f3 e8Q+ Bd7 Ba6 h2 Nh3 g4 Qe3 f2 Qe5 f1Q Qe3 g3 Qf4 d3 Kc3 d2 Qe3 d1Q Nd2 f4 Qe7 a4 Nf3 d4+ Kb4 d3 Qe2 a2 Nhg5 g2 Ng1 f3 Qe8 f2 Bd2 a3 Ne6 Qg4+ Nf4 Bg7 Rd1 a1Q Qh5 a2 Re1 Qc3+ Ka3 a1N Re4 Be8 Ne6 Qd5 Ne2 g1N Bf4 d2 Nc7 d1B Re7 Qe3 Ng3 Ne2 Kb4 Bc2 Nf5 Rh6 Re5 Rg6 Rg1 Bh8 Qg5 Qfg2 Bd3 f1R Be4 Qgf2 Bh1 Ra2 Re7 Rb2 Rg2 Rbb1 Rh7 Rbd1 Rh5 Nd7 Rg3 Ne5 Rf3 Nf7 Rh7 Qc1 Re3 Nd8 Re5 Kb7 c6+ Kb6 Ne6 Qce3 c7 Kc6 c8N Qgg1 Qh5 Rg3 Nc7 Qgg2 Qg4 Qh3 Qg5 Qg4 Ne6 Bd3 Nc7 Nc2+ Ka4 Ne1 Kb4 Bc2 Nce7+ Kd7 Re6 Qee5 Reh6 Qee3 Ng6+ Kc6 Nge7+ Kb7 Rh5 Kb6 Nc8+ Kc6 Nce7+
2qb4/4n3/1NbKR2q/RBQb3n/P1p1krN1/n1b1N2P/q4r2/1r1nB3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 h5 g4 hxg4 b5 e5 b6 exf4 d3 cxd3 Ba3 axb6 Bb2 b5 Bc1 b4 Kd2 Kd7 a4 Kd6 e4 Ke5 h3 b5 Rh2 g5 Rf2 f5 Rh2 c5 Qe1 f3 Ke3 c4 Rf2 b3 Rfa2 b4 Rd2 f4+ Kf2 b2 Rd1 b3 Nd2 b1R Ra2 b2 Qe3 g3+ Ke1 g2 Kf2 g4 Ra1 g3+ Ke1 Nd7 Ra3 Be7 Qe2 Ndf6 Qe3 Nh5 Be2 Bb7 Qa7 Qc8 Rb3 Bd8 Qc5+ Bd5 Rb7 Ne7 Rb5 Rf8 Nf1 f2+ Kd2 f3 Kc3 d2 Kb4 Rf4 Ne3 f1B Ra5 f2 Re1 d1N Bd2 Ra6 Kb5 Raf6 Bf3 Bd3 Bb4 f1Q Ne2 g1B Nc3 g2 Bg4 Qf2 Bd7 Bh2 Be8 g1Q Bc6 Ke6 e5 Qg5 Re2 B3e4 Bd7+ Kf7 e6+ Kg6 Bc6 Qh6 Bd7 Ng8 e7 Bg2 e8N Ne7 Bc6 Rf8 Nf6 Bge4 Ng2 Kf5 Ng4 Bg1 Re1 Qc2 Be8 Bd4 Bc6 Bf3 Re6 Qb3 Be8 Qa2 Bc6 Be4 Bd7 Rf2 N2e3+ Kf4 Bc6 Kf3 Bd7 Rf4 Be8 Bb7 Ncd5 Bc3 Nb6 Bbd5 Qd6 Bc6+ Kc5 Bed5 Qc7 Bb7 Bb5 Bbc6 Rf6 Ke4 Kd6 Rc1 Qa7 b1N Rg6 Na3 Re6+ Kf3 Qc7 Rb1 Qa7 Bh8 Be1 Bc3 Rg6 Ke4 Qc7 Bb7 Qc5 Bbc6 Re6+
2nbK2b/Pb2PB2/6n1/2rpR3/3n2Nq/r1n1N2b/B2q2nR/1n1Qk2N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 c4 g5 e4 b5 a4 f5 a5 d5 c5 b3 h3 d3 a6 g2 c6 Kg3 h4 Kf2 h5 g3 h6 b2 h7 d2 c7 f4 Nf3 g1Q Qb3 d1N Nh4 b4 Qa3 b3 Ra2 g4 Qb4 f3 Bb5 g2 Qa4 g3 Bc4 Ke1 Qb5 f2 Ng6 f1B Qb6 Bb7 Ke6 Ne3 Kf7 Ne7 c8B Qh2 e5 g1N e6 g2 Ne5 Nbc6 Nd2 b1N Bd7 b2 Qd4 Nf3 Ne4 g1B Nf2 Na7 Be8 Nac8 Neg4 Ng2 Ne3 Ng6 a7 Qdh4 e7 Bg7 Ra6 Nc3 Ba2 b1N Re6 Rg8 Qd3 Nd4 h8N Be5 Qc2 Bc7 Re5 Bd8 Qf5 Q2f4 Rh2 Rb8 Nh1 Qff2 Rh3 Qd2 Rh2 Ra8 Qg4 Rf8+ Kg7 Rf3 Nf7 Bf2 Nh6 Bg3 Rf5 Be5+ Kf7 Bh8 Qh5 N2f4 Nhg4 Bh3 Re5 Ng2+ Qf5 Nb6 Qf6 Rc8 Qf5 Rg3 Qd3 Rc5 Qc2 Nc8 Qd3 N6f4 Kf8 Rf3 Bf7 Ng6+ Ke8 Rf6 Ngf2 Ra6 Nfg4 Raa5 Qc2 Ra3 Qd1+
2bn1r1B/N3n2r/2n2qpb/P4nnR/1R4Bk/nKB4N/2n2P2/2r1n1Q1 b - - 0 1 illegal: No possible last move
2r2b1b/2n3BK/3q1Q2/RB1n1RNb/3nq3/1pk1P1B1/b4p1P/2bN1q1r b - - 0 1 legal: proof: d4 g5 Nd2 a5 Nb1 g4 Bd2 h6 Bg5 hxg5 b4 axb4 g3 f5 Nc3 f4 Nb1 fxg3 c4 d5 f4 dxc4 a4 e5 a5 Kf7 a6 Ke8 a7 Nd7 f5 Rb8 a8R Bh6 R8a4 Ra8 R4a3 Bf8 Rf3 Nb8 Rf4 exf4 Kd2 Ke7 f6+ Kd6 d5 Ke5 f7 Kd4 d6 c5 d7 b5 Bg2 b3 Qe1 f3 Qc1 c3+ Ke1 b2 Qc2 c4 Ra7 f2+ Kd1 b4 Ra5 b3 Rf5 Na6 Re5 Nf6 Qg6 c2+ Kd2 c1B+ Kd1 c3 Bh3 g2 Re3 g3 Re5 g4 Qg8 Nc7 Qg5 Ra1 Qg7 Nfd5 Nd2 b1B Nc4 Bb2 Qf6 c2+ Kd2 Qe8 d8B Ba2 Rh5+ Qe5 Rf5 c1B+ Kd1 Bb7 e3+ Kc3 Nf3 g1N Bf1 g2 Ng5 Nf3 Ke2 g1Q Be7 g3 Bd6 Qd4 Be5 g2 Bg3 Be7 f8B Bc5 Be7 Rc8 Bf8 Be7 Bg7 Bf8 Bf4 Rb1 Bg3 Ba1 Nb2 Bc6 Nc4 Be8 Nb2 Qe5 Nc4 Bh5 Nb2 Kb4 Kd3 Qd6 Ke4 Nd4 Be2 Qf1 Bb5 Qc4 Rd1 g1Q Rd3 Qcc6 Rc3 Qa8 Rc6 Qe1 Ra6 Kc3 Ra5 Qf1 Qg6 Qc4 Nf7 Kb4 Na4 Nde6+ Bd4 Ba3 Re5 Ndf4+ Kf5 Rh1 Ng5 Bc1 Kf6 Qac6 Rf5 Qf1 Kf7 Qcc4 Kg8 Nfd5 Kh7 Qc2 Bh8 Qe4 Qg7 Bf6 Nb2 Nd4 Qg6 Kc3 Qf7 B6e7 Bhe5 Bg7 Bf6 Bh8 Bg7 Bf8 Qg6 Qb4 Qf6 Qd6 Nd1+
k2K4/r4r1n/P1b2r2/4b1q1/1nrp1BN1/1B1rPn1R/qQb2NRp/6N1 b - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 h4 g5 b5 gxh4 b6 axb6 c5 bxc5 Qc2 c4 Qd1 c3 Kf2 h5 Kf3 d5 a4 Kd7 g4 Kc7 a5 f5 g5 b5 e3 Kb7 g6 c2 g7 h3 Na3 b4 Nc4 b3 Nd2 h4 Bd3 b2 Ne2 b1Q Ng1 h2 Ne2 h3 Bc4 d3 Nd4 Nf6 g8N Bg7 Ra2 Ra7 a6+ Ka8 Ne2 d4 Ra1 Nc6 Qe1 Nh7 Ng3 Be5 Nf6 Rf8 Qe2 Nb4 Ra5 Rff7 Bb3 Qa2 Ndf1 d2 Be6 d1R Qb5 Rd3 Ba3 c1R Ne2 Rc4 Ne4 Qg5 Nf2 Rf6 Rg1 h1B+ Rg2 Bb7+ Bd5 Bc6 Nh2 Rff7 Nhg4 h2 Ng1 Rf6 Qb6 Rff7 Ne4 Rf6 Bg8 Ba4 Rc5 Bc2 Rc6 Rff7 Rh6 Rf6 Rh3 Rff7 Ke2 f3+ Kf2 f4 Qb5 Nd5 Qb2 Rf6 Bd6 Nb4 Kf1 f2 Ke2 f1N Kf3 Rff7 Nef2 Rf6 Ke4 f3 Nd1 f2 Bc7 Nc6 Kd5 Nd2 Bb8 f1R Ndf2 Rff7 Ke6 Nf3 Bc7 Rf6+ Kd7 Nb4 Kd8 Nh4 Rgg3 Bc6 Rg2 Nf3 Bd6 Rcc3 Bb3 Rc4 Ne4 Nh4 Bb8 R1f5 Bd6 Nf3 Nef2 Rff7+ Kc8 R5f6 Kd8 Qa4 Bb8 Qa2 Bc7 Bg3 Bd6 Bf4 Bc5 Bb8 Bd6 Bc7+ Kc8 Bb8 Bf4 Be5 Kd8
Kb2r1r1/1BN3q1/4p2p/2r1Pn2/2kB4/R1Pn3r/bbqBNqR1/2Q1n3 b - - 0 1 legal: proof: b4 f5 g4 fxg4 d4 c5 a4 cxd4 h3 gxh3 b5 a6 Qd2 axb5 Qd3 bxa4 Qd1 a3 Kd2 Kf7 Kd3 Ke6 Kc4 b5+ Kc5 g5 e4 d5 f4 g4 e5 h2 c3 b4 Nf3 d3 Qe1 b3 Ra2 b2 Kb5 g3 Qe2 d4 f5+ Kd5 f6 d2 f7 d1Q Bh6 g2 Ne1 g1N Qe3 d3 Bg7 d2 Qf2 h6 Bf6 Qe2+ Nd3 d1R Ra1 a2 Qh4 Nc6 Qf2 Nf3 Qg2 Qf2 Nc5 Qd7 Kb6 Nb4 Na3 b1Q Nb5 Qbc2 Qg6 Nd3 Bg5 Nfe1 Bf4 Kc4 Rg1 h1R Nc7 Rh3 Qg5 e6 Rg2 Ne7 Be2 Rg8 Bd2 Ba6 Bf3 Nf5 Bb7 Bd6 f8B Re8 Ka7 Qg7 Qe3 Rb1 Ne4 Rb5 Ng3 Rc5 Ne2 Bb5 Be7 Ba4 Bd8 Bc6 Ka8 Bd5 Rb1 a1B Rb3 Bb2 Ra3 Qf3 Qg1 Qf2 Qh1 Nf3 Qc1 Nfe1 Nb5 Bb8 Bb6 Bc6 Nc7 Ba4 Rg5 Bb3 Rg2 Ba2 Ba7 Rd5 Bae3 Rc5 Bd4
4rQrR/5pRB/Np2qb2/4P3/b2rNBnb/1n2r1n1/rPK1nk2/5N2 b - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 d5 b5 d6 bxc4 Qb3 cxd6 Nc3 d5 Qb6 axb6 Nb1 d4 Kd1 Ke7 g4 Kf6 e4 Kg5 a4 h5 a5 d5 a6 d3 e5 h3 a7 Kh4 g5 Kg3 g6 h4 g7 c3 Ra4 c2+ Kd2 h2 Ra3 f3 Ra1 f2 Kc3 d4+ Kd2 h3 Ra5 Qd7 Nf3 Be7 Nh4 Qe6 Ra6 Nf6 g8Q+ Ng4 Nc3 Bf6 Ra5 Nc6 Nb1 Bd7 Qg5 Rae8 a8N Rhg8 Ra6 Na5 Qh5 Ba4 Be2 f1N+ Ke1 Nb3 Bh6 c1B Kd1 d2 Bg5 Kf2 Nf5 Ng3 Re1 h1R Nd6 h2 Bd3 Ne2 Kc2 d1R Bh7 Rd3 Nd2 Re3 Nc7 Rf1 Rd1 h1N Qh6 Nhg3 Bf4 Rg1 Ra8 d3+ Kb1 Re1 Nf1 d2 Kc2 Bh4 Na6 Bf6 Nh2 Rh1 Rg1 d1R Rc8 Rd4 Nf1 Bd2 Qf8 Bb4 Nb5 Bbe7 Nd6 Bh4 Rd8 Bef6 Ne4+ Kf3 Nac5 Nh5 Neg3 Nh6 Bd3 Re7 Bh7 Rg6 Qg8 Kf2 Nh2 Rg4 Rf8 Re8 Qg7 Rg6 Rh8 Rg5 Qf8 Rg7 Nf5 Rg8 Rg7 Ng4 Nd6 Nhg3 Na6 Ra1 Nf1 Ra2 Ne4+
1rr2N1K/pN1p1q2/P1nr2BP/2NnQ1n1/1Bb2R2/2n1b3/2R4r/k2n3n b - - 0 1 legal: proof: c4 c5 b4 cxb4 d4 h5 g4 hxg4 f4 e5 c5 exf4 c6 bxc6 d5 cxd5 Qa4 d4 Qd1 d3 Kd2 Ke7 h4 Kf6 e4 Ke5 a4 Kd4 e5 f5 h5 g5 e6 b3 e7 g3 e8N g4 h6 b2 a5 g2 Rh3 g3 Qg4 Nc6 Rh5 Qe7 Rh3 Nf6 Ng7 Nd5 Rh1 Rb8 Qf3 Ba6 Be2 Qf7 Ne8 Bc5 Nh3 g1R Nc3 g2 Ra4+ Bc4 Qg3 f3 a6 f4 Qg5 f2 Na2 f1R Nb4 f3 Nd6 f2 Nb7 Rhc8 Rh2 Rh1 Nf4 g1N Bh5 Nh3 Ng6 Re1 Qe7 Ng5 Nf8 Re6 Bg6 Rd6 Rg2 Rh2 Qe2 Ba2 Qe5+ Kc4 Rg4+ Kb3 Rf4 Bd4 Ra5 Bb6 Rc5 Ka3 Rc2 Bc4 Na2 Kb3 Nc3 Bc5 Na4 Ka2 Rf5 Ka1 Rf4 Bb6 Nac5 f1N+ Kd1 Bb3 Bd2 Ng3 Bb4 Nh1 Ke1 d2+ Kd1 Rh3 Ke2 d1N Kd2 Rh2+ Kd3 Nce7 Kd4 b1N Qf5 Bc4 Ke5 Nbc3 Qf6 Qe8 Qe6 Nc6+ Kf5 Nde7+ Kf6 Ned5+ Kg7 Qe7+ Kh8 Qf7 Nd3 Bg1 Qe5 Be3 Ndc5
1n2Q3/r1R2Nqn/P2B2np/1n6/1r4P1/1N3B2/Rr1p1p2/nb1kqNbK b - - 0 1 legal: proof: c4 e5 b4 c5 d4 cxd4 f4 exf4 h4 g5 b5 gxh4 b6 axb6 c5 bxc5 Qc2 c4 Qd1 c3 Kf2 Ke7 e4 Ke6 a4 Ke5 g4 b5 Kg2 d5 a5 f5 a6 f3+ Kh2 f4 Be3 h6 Qa4 h3 Ra3 d3 Bc5 d2 Be3 d1N Ba7 c2 Bf2 c1N Rd3 b4 Qc2 d4 Qc4 b3 Qf7 b2 Qa2 Ne7 Qb3 Nc3 Na3 b1R Qg8 Rb2 Qg6 Nb3 Rd2 d3 Be2 Bf5 Qb6 Qd7 Qa5+ Nb5 Bf1 Ng6 Qa4 Qg7 Rd1 d2 Be1 f2 Ra1 f3 Bg2 Kf4 e5+ Ke3 e6 f1Q e7 Bb1 e8N Ra7 Ne2 Bc5 Ra2 Na1 Bg3 Qe1 Bd6 Kd3 Rf1 Bg1+ Kh1 f2 Bf3 h2 Nd4 Rf8 Nac2 Rf4 Nb3 Rb4 Ne3 Kc3 Nf5 Kc2 Ng3 Qe6 Kg2 h1N Re1 Qe2 Nf1 Ng3 Rd1 Nh5 Kh1 Qe1 Rc1+ Kd3 Rc7 Nf6 Be5 Nh7 Nd6 Ne7 Nf7 Ng6 Bg2 Ke2 Bd6 Kd1 Bd5 Na3 Qe8 Nb5 Bf3+
4k3/3q1BPr/3p1q1r/q2N2bb/bPp1b3/1b3QK1/3n1Rnp/N2R1BB1 b - - 0 1 legal: proof: h4 e5 f4 exf4 a4 b5 d4 bxa4 c4 g5 d5 gxh4 d6 cxd6 Rh3 d5 Rh1 dxc4 Kf2 f5 e4 h5 b4 a5 g4 d6 e5 a3 e6 f3 e7 h3 g5 h2 g6 h4 g7 a4 Bb2 f4 Qd5 a2 Qd2 a3 Qc2 h3 Bd4 Nf6 Qe2 Nh5 Bg2 Qd7 Bf1 Rh6 Bg2 Nc6 Qe5 Na5 Ne2 Nb3 Rc1 h1B Qc5 h2 Qa7 Nd2 Ke1 f2+ Kd1 f1B Ke1 f3 Kf2 Nf4 Nec3 Be2 Bb6 Bd1 Kg3 f2 Bc5 f1B Qa6 Bb3 Ba7 Be2 Ne4 Bh5 Bf1 Ng2 Nc5 Bb7 Nc3 Be4 Rab1 a1Q Rd1 a2 Nd5 Qf6 Qc6 a1Q Rb2 Qa5 Ra2 Bec2 Rb2 Ba4 Nb3 Rb8 Na1 Bcb3 Bg1 Rb5 Nc3 Rh7 Qf3 Rg5+ Kf2 Rg6 Nd5 Rgh6 Kg3 Nh4 Qd3 Be4 Qf3 Ng2 Nc3 Kf7 e8B+ Ke7 Ra2 Kd8 Bf7 Be7 Be6 Ke8 Nd5 Qd4 Rb2 Bg5 Rc2 Qf6 Rb2 Nb1 Rf2 Nd2 Bf7+
Q1q5/rk1nbR2/2p1rrNK/1pp1bP2/1n4BB/n3N3/R1Prb3/3R3q b - - 0 1 illegal: No possible last move
nr1q4/KB2b1p1/nNr2B2/1br1R1r1/1P2pQq1/R2PNq1p/1n6/2R1k3 b - - 0 1 legal: proof: c4 d5 g4 dxc4 e4 f5 h4 fxe4 a4 b5 g5 bxa4 g6 hxg6 h5 gxh5 Na3 h4 Nb1 h3 Ke2 Kf7 Ke3 Kg6 b4 Kf5 f4 a5 Qf3 c5 Qg3 e5 Rh2 a3 Bb2 a2 Qh4 a4 Qe7 Kg4 f5 Kg3 f6 c3 f7 c4 Rh1 a3 Qe8 c2 Qa4 c1R Be2 c3 Rh2 c2 Bd3 Nf6 Qe8 Nfd7 Nf3 Ba6 Nc3 Bb5 Na4 Be7 f8R Na6 Be2 Rb8 Rf4 Nb6 Qh5 Na8 Qe8 Rh5 Rb1 a1Q Qf8 a2 Nb6 Rg5 Bd4 Qb2 Rf5 a1Q Ne1 Qba3+ Bc3 Q1a2 Ng2 Qe6 Bf3 Qg6 Qf7 Qh5 Ra1 Qg4 Rh1 Qb3 Rd1 Qbd5 Ra3 Qb7 Qc4 Qc6 Ke2 e3 Bd4 Qcd5 Kd3 e2 Ne3 e1N+ Kc3 Qf7 Bb7 Nd3 Rh1 Nb2 d3 Qfh5 Qf7 e4 Bf6 Qf3 Re5 Kf2 Rd1 Qhg4 Rg1 Bd6 Kd4 Ke2 Qc7 Be7+ Qd6 Rd1 Rf1 c1R Rg1 Rd2 Rd1 Rc3 Rc1 Rdc2 Kd5 Bc4+ Kc6 Kd2 Nd1 Ke1 Ne3+ Ke2 Qd7 Rb3 Na4 Rbc3 Qf5 Kd2 Rca1 Rc1 Qf4 Ke1 Rb1 N8c7 Kb6 Bb5 Ka7 Na8 Nb6 Rc6 Nd1 R1c3 Rc1 R3c5 Ne3+
2R2b1Q/rn3Bq1/n3n1kp/1pP2N1p/3nqnBr/3P4/K1bR1Nn1/1B6 b - - 0 1 legal: proof: f4 d5 e4 dxe4 h4 e5 b4 exf4 b5 c5 h5 c4 b6 g6 Nc3 gxh5 Na4 c3 Bb2 cxb2 Nc3 axb6 Nb1 b5 Bd3 b4 Be2 Qd4 Bf1 Qd8 c4 b5 a4 b3 g4 f3 a5 e3 c5 e2 a6 Qc7 g5 Nh6 g6 Nf5 g7 Nd4 g8B Ra7 Rh3 Ne6 Nc3 b1Q Nd5 b2 Nb6 Qe4 Rh1 b1N Qc1 Na3 Qc2 Nc4 Nd5 Nd6 Nc3 Nb7 Nd5 Qce5 Qb1 Qg7 Rh2 Bd7 Kf2 e1N Ne3 Nc2 Qb2 Ncd4 Ke1 f2+ Kd1 Ke7 Kc1 Kf6 Ra4 Kg6 Bh3 f1N Bg4 Ng3 Nh3 Bc6 Qa1 Nge2+ Kb2 N2f4 Nf2 Bd5 d3 Bb3 Nf5 Bc2 Ka2 h6 Ne3 f5 Qb2 Rh7 Qc3 Ra8 a7 Na6 Qb2 Nh3 Qa1 f4 Nf5 f3 Ra5 Rd8 a8B Nhf4 Qb2 Nd6 Bd5 Nb7 Nd1 Ra8 Rd2 f2 Bb3 f1N Nf2 Ne3 Ba4 Bd1 Bc2 Neg2 Bb1 Bc2 Qa1 Nac7 Ra3 Ra4 Qb2 Rc4 Ra8 Na6 Rc8 Qe7 Rc7 Nb3 Qa3 Qe2 Rc6 Nd6 Bf3 Nd5 Kb2 Rh4 Qa2 Qe4 Qa1 Ndf4 Ka2 Qf7 Qe5 Nbd4 Qh8 Qf6 Rc8 Ra7 Be2 Qg7 Bg4 Nb7 Bf7+
3n2bb/1R1K4/P7/1r1P1rr1/1qpq2kR/N2Q1N2/1r1BBpp1/3Nrr1n b - - 0 1 legal: proof: g4 e5 f4 exf4 b4 d5 c4 dxc4 b5 h5 e3 fxe3 b6 hxg4 Nf3 axb6 Ng1 b5 Qb3 b4 Qc2 Qd4 Qd1 Qd8 Ke2 Ke7 h4 Ke6 d4 Kf5 a4 g5 h5 c5 h6 b5 h7 b3 a5 b4 a6 c3 Kd3 e2 Kc4 e1R Kb5 c2 Nc3 g3 Qe2 b2 Ra3 b1Q Nd1 g4 Qc4 b3 Be2 g2 Rh2 b2 Qc3 g3 Nf3 g1R Qd3+ Kg4 Ra5 f5 Ra3 f4 Rh6 c4 Rh2 Be6 Rc3 Bg7 Bd2 c1R Ng5+ f3 Qc2 Nc6 Rh6 Nge7 Rd3 Rf8 h8N Bg8 Kc5 Nf5 Ne6 Rb8 Bf1 f2 Nf7 Bh8 Neg5 Qb6+ Kd5 Nd8 Nf3 Qa1 Ra3 b1R Rb3 Rb2 Qd3 Qb4 Be2 Rgf1 Rh3 g2 Rh6 Ng3 Rh2 Rc8 Rh6 Rc5+ Kd6 Rc3 d5 Rb5+ Kd7 Nh1 Nd6 Rf5 Rh5 Qaa5 Rh6 Qb6 Rh2 Qd4 Rh3 Rb6 Nb5 Rg6 Rh7 Rgg5 Na3 Rc1 Rh5 Rcb1 Rh2 Qb8 Rb7 Rb5 Rh7 R1b2 Rc7 Qbb6 Rb7 Qbc5 Rh2 Qb4 Rh4+
B2bB1n1/1B1p4/p4n1k/1QKRp3/Rr1nP3/n2N1b2/Pq2b2n/2N1rb2 b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 c5 h5 cxb4 h6 d3 Kd2 b3 Ke1 gxh6 Bd2 h5 Bc1 h4 c4 b2 Bf4 f6 Be5 fxe5 Nd2 Bd6 Rc1 Bc5 Rc3 Bf8 Qa1 bxa1N f4 Kf7 Kf2 Kg6 Ke3 h5 g4 b5 c5 h3 c6 h2 g5 h4 c7 h3 Rc1 b4 Nb1 b3 Na3 b2 Nb5 b1N Re1 d2 Kd3 d1B Kc4 Be7 Nc3 Nc2 Nd5 Na6 Nb4 Nd4 Bg2 Nc5 Nd3 Rb8 Ba8 Ne4 f5+ Kh7 f6 Rb4+ Kd5 Na3 f7 Ba6 f8Q Qb8 c8B Bd8 Bcb7 Nef6+ Kc5 Kg6 e4 Be2 Rb1 Bb5 Rc1 a6 Rc4 Kh5 g6 Bf1 g7 Kh6 Nf3 Be2 Rf1 h1B Ng1 h2 Rd1 Bhf3 Rd2 Bf1 Ne2 h1N Nec1 Nf2 Qd6 B1e2 Qc6 Ng4 Qb6 Nh2 Qa5 Rb3 Ra4 Rb4 Rd1 Bc4 Qb5 Bf1 Ne1 Bce2 Ned3 Ne7 g8B Rh7 Bb3 Neg8 Be6 Rg7 Bf7 Rg1 Be8 Qc8+ Kd6 Qc2 Rd2 Qb2 Rd1 Bh3 Kc5 Re1 Rd2 Bhf1 Nf2 Nc6 Rd5 Nd4 Nfd3
1K2nQ1N/1Pp1N1b1/4R1R1/1p1p1BPk/n2nb1Nr/1pBbr2q/8/2r1b3 b - - 0 1 illegal: No proof kernel
3Rr2n/K2Rb3/6P1/2pN2q1/kQ1qpP1p/N1np3B/bp3rR1/r3B2n b - - 0 1 legal: proof: c4 g5 e4 f5 b4 fxe4 h4 gxh4 d3 a6 b5 axb5 Be2 bxc4 Bf1 cxd3 Kd2 Ra4 Ke1 d2+ Ke2 Ra8 Ke3 h3 Kd4 e3 Kc5 h5 f4 e5+ Kb5 c5 a4 d5 g4 Kd7 g5 h4 a5 h2 g6 d4 a6 e2 a7 e1R Bg2 e4 Ra2 Na6 Qe2 d1Q Ra5 Nc7+ Kb6 Nh6 Qa2 Qg5 Nh3 Be7 Qa4+ Nb5 Rf1 h1N Qa1 Re8 Qa2 Nf7 Qb2 Nh8 Ng1 Re2 Bd2 Rf2 Qc3 d3 Ne2 Qa4 Be1 Qd4 Bh3+ Kd6 Qc4 Be6 Rg1 Bg8 Nec3 Be6 Nd1 Nc3 Rg2 Bg8 Qa4 Kd5 Qa3 Kc4 Ra6 Be6 Qa5 Kb3 Ne3 Rac8 a8R Bc4 Ka7 b5 Rd6 b4 Kb6 Be6 Ra7 Ra8 Rd8 Bd5 Rc7 Ra7 Qb5 Ra1 Na3 Bg8 Qc4+ Ka4 Ka7 Bd5 Rcd7 Bf7 Qd5 b3 Qb7 b2 Qb6 Bb3 Nd5 Ba2 Qb4+
Brqr3q/2P1q2N/NQ1rk3/2PqRb1K/2Q1p2n/3bq3/4n3/n5BR b - - 0 1 illegal: No possible last move
6K1/pR5r/pNBn1r2/QQp1bb1B/5kNn/qr2PP2/4R1bb/6r1 b - - 0 1 legal: proof: c4 d5 e4 dxc4 h4 g5 a4 gxh4 e5 c3 a5 f6 b3 fxe5 a6 bxa6 Ba3 e4 Bb2 cxb2 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 g4 h5 Kg6 e3 Kf7 e2 g5 e1B b4 h3 b5 h4 g6 h2 g7 h3 b6 Rh7 b7 Nf6 f3 Bf5 Na3 b1R Bg2 Ne8 Nc2 Nc6 b8Q+ Nd6+ Kg8 Rb3 Nb4 Qa5 Ra3 Bg3 Na2 Nd4 Bf1 Kf4 Qc1 e5 Qc3 e4 Bb5 e3 Nb4 e2 Bc6 e1Q Qb5 Qe3 Ra2 Qa3 Rb2 Rb8 Rb1 Rb6 Nd5+ Kg5 Rb2 Be5 Qca5 Be7 Rb1 Bd8 Re1 Bc7 Re2 Bb8 Nc3 Kf4 Na4 Rb7 Nb6 Rf7 Qba4 Rf6 Q4b5 Rfh6 Kf8 Bc7 g8B Rf6+ Bf7 Bg4 Na8 N4f5 Kg8 Nh4 Nb6 Bd7 Bh5 Bf5 Rg2 Bb8 Rg7 Bg6 Rb7 Bf5 Ne2+ Kg5 Re1 h1B Nc3 h2 Re2 Kf4 Ne4 Bg2 Nf2 h1R Ng4 Rg1 Qc3 Bc7 Qca5 Ne8 Nd7 Kg5 Qaa4 Bh2 Nb6 Bce5 Qab4 Nd6 Q4a5 Kf4 dxe3+
1Kbb3n/2BqP1Q1/3bN1pR/2n1rR2/3P1Q2/3b2Nn/r4Bbn/2bkr3 b - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Ba3 f3 Qb3 g3 Bg2 fxg2 Bc1 axb6 Qa4+ b5 Qd1 b4 e4 Kd7 Ke2 Kd6 Kf3 Kc5 Kf4 Kd4 a4 Kd3 Ke5 f5 h4 b5 h5 c5 a5 f4 h6 b3 h7 g6 a6 b2 a7 f3 Nh3 g1N Ng5 b4 Qf1+ Kc2 d4 f2 Be3 b3 Qg2 c3 Ra5 c4 Qf1 g2 Rh5 Qd7 Nf3 Na6 Rh4 Nh3 Rh5 g1N Rh4 Nc5 Nfd2 Nh6 Qe2 f1B Bf2 Bg2 Qe3 Kd1 Na3 b1R Qf4 b2 Nb5 c2 Nf1 c1B Ng3 c3 Nc7 c2 Ne6 Bd6+ Kd5 Nf3 e5 Re8 h8B Nf7 Rh6 Bd2 Bf6 c1B Bd8 Nh8 Bc7 Ra1 Rb5 b1B Ra5 Qf7 Kc6 Bd3 Rb5 Ra2 Ra5 Rb8 a8Q Rb1 Qa7 Qf5 Rb5 Nh2+ Kb6 Qf7 Qb7 Ba5+ Ka7 Qd7 Kb8 Bf3 Ng5 Bg2 e6 Ne4 Re5 Rb5 Rf5 Re5 Qd5 Nc5 e7 Rf8 Qe6 Rf6 Qf7 Rfe6 Qh7 Re1 Qg7 R6e5 Ne6 R5e3 Qe4 Bf4 Bd6 Bd8 Bc7 Bd6 Qh4 Re5 Qf4
QnbBr1r1/4br2/RN2P2r/n1p5/1R5N/qP2rn2/1p2b3/kB3QnK b - - 0 1 legal: proof: f4 g5 a4 b5 h4 bxa4 c4 gxh4 b3 d5 f5 dxc4 f6 a3 Qc2 exf6 Nh3 f5 Qb2 axb2 Ng1 f4 Kf2 Ke7 e4 Kd6 d4 f5 g4 h5 Kg2 a5 d5 Kc5 e5 Kb4 e6 c5 g5 h3+ Kh2 a4 g6 h4 g7 c3 d6 c2 d7 a3 Bb5 a2 Bc6 f3 Bb5 f2 Bc6 f1B Be3 c1N Nf3 f4 Bb5 Qa5 d8Q Be2 Ng1 f3 Nc3 Ka3 Na4 f2 Qd6 f1R Be8 Be7 Rb1 a1N Bd4 Ka2 Qd5 Nc2 Qc4 Ne1 Bh5 Rf7 Nb6 Qa3 Nf3 Rh6 Kg1 h2+ Kf2 h3 Rg1 h1R Rf1 h2 Bg6 Rg1 Bf6 h1R Nh4 Nf3 Rd1 Rg5 Rd4 Rh3 Qa6 Rhg3 Rb4 Re5 Bg5 Re3 Qb5 Nf6 g8Q Nfd7 Qf8 Nc6 Qa4 Rb8 Qa8 Na5 Bf6 Rg5 Be4 Rgg7 Bg5 Rg8 Kg2 Rhh7 Kh1 Rh6 Qd5 Ra8 Qd1 Nb8 Qf1 Bc4 Bf6 Ne2 Rc1 Neg1 Bb1+ Ka1 Rd1 Ra7 Rd6 Be2 Qe8 Rc7 Qc6 Rd7 Qa8 Rdd8 Bg5 Rde8 Rc6 Bf8 Bd8 Bd6 Na4 Bf8 Ra6 Be7 Nb6
1N4kr/q3q1p1/1n3PK1/8/np1q2nQ/3B2QR/Bn2Np1P/1Rb1rbb1 b - - 0 1 illegal: No possible last move
Q2N1K1Q/r2bp1n1/4r1p1/1BBbRbk1/1qP2N2/1pb2P1q/1q1r4/3n1R2 b - - 0 1 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 g4 h5 e4 fxe4 a3 bxa3 Kd2 hxg4 Ke2 Nf6 Ke1 Ng8 Kd2 Kf7 h4 Kf6 c4 b5 h5 d5 h6 e3+ Kd3 g3 h7 b4 Qh5 b3 Qh2 e2 Bf4 e1R Ne2 a2 Be3 g2 Nd2 g1Q Qh5 g6 Qh6 Qa5 Ng3 Qb4 Rh4 Na6 Rd1 a1Q Nb1 Bd7 Bf4 Nc7 Nh1 Re6 Be3 Qh2 Nc3 Bg7 Rc1 Ra7 Re1 Qh3 Ne2 Nb5 Rh5 Qb2 Nhg3 Nc3 Re5 Nd1 Qh5 Nh6 f3 Rd8 Nf4 Nf5 Nge2 Bh8 Qh6 Ng7 Bg2 Nf5 Qf8+ Kg5 Rf1 Bf6 Re4 Ng7 h8Q Be5 Ng3 Bf6 Nf5 Be5 Nd6 Bf6 Bd2 Be5 Nb7 Bf6 Ke2 d3+ Ke1 d4 Bh1 Bc8 Rg1+ Qg4 Rg2 Rc6 Rf2 Nc3 Be3 d2+ Kf1 d1B Bg2 d3 Bh3 d2 Bc5 Qh5 Bd7 Bc2 Qfg8 Bd4 Re5+ Bf5 Qe8 Rd6 Bb5 Nd1 Ke2 Bc3 Rf1 Qh3 Qc6 R8d7 Nd8 Rf6 Qb7 Rd4 Qa8 Bd7 Re4 Bfe6 Re3 Bd5 Re6 Nf2 Ke3 d1B Re4 Rd2 Re6 Be2 Re4 Bg8 Re6 Nd1+ Ke4 Bd3+ Kd5 Bh7 Re5+ B3f5+ Bd4 Be6+ Kc6 Bhg8 Bc5 Bgf7 Nb7 Bd5+ Kc7 Bfe6 Kd8 Nh5 Ke8 Bc8 Ba4 Re6 Bb5 Bd7+ Kf8 Ng7 Nd8
3N2q1/r1pKRrp1/kr5P/2pb4/1q2PnN1/Q2B2Q1/2rb1B1R/4q1nb b - - 0 1 illegal: No possible last move
8/N2B2p1/1q1bb1p1/Pbnq3n/4Qq2/3Nppr1/BP1r3R/2Qk1KRr b - - 0 1 illegal: No proof kernel
qn2R3/Q1n1BK2/P2p2B1/b2NpP2/1Rr4Q/1kp5/1prnb3/rN3qn1 b - - 0 1 legal: proof: c4 g5 e4 f5 b4 fxe4 h4 gxh4 d3 a6 b5 axb5 Be2 bxc4 Bf1 cxd3 Kd2 Ra4 Ke1 d2+ Ke2 Ra8 Ke3 Kf7 Kd4 Ke6 g4 h5 f4 c5+ Kc4 b5+ Kc3 Kd5 a4 e5 a5 b4+ Kb3 e3 a6 e2 g5 e1N g6 h3 g7 c4+ Kb2 b3 Kc3 h4 Ne2 h2 Ra4 h3 Ng3 b2 Qg4 d1R Nd2 Nf3 Qg5 Rh4 Bg2 Ne7 Nde4 Nd2 Rg1 h1N Qh5 h2 Ne2 Nf2 Nf6+ Kc5 g8Q h1Q Be4 Nh3 Rg4 Qf1 Qgf7 Ng1 Bg6 d6 Qhh7 Bh6 Nd5 Bd7 f5 Bb5 Rg3 Ra7 Qf6 Rc7 Rg2 Re4 Qh4 Be3 Rg4 Bf2 Rg5 Be1 Rh5 Qc8 Qf7 Qb7 Rh8 Qa8 Re8 Rc6 Kc2 Rf4 Nec3 Rf2 Nb1 Rc8 Nb6 Nd5 Qa7 Nc7 Kc3 Rf4 Nd7+ Kd5 Kb4 Rg4 Nb6+ Kd4 Nd5+ Kd3 Ka5 Kc2 Kb6 Rf4 Qh8 Kb3 Qh4 Ne4 Be3 Bc3 Bf2 Nd2 Be3 Rf2 Bg5 Bb4 Bd8 c3 Be7 Be2 Qh2 Ne6 Qh4 Rc4 Kb5 Rg2 Kb6 Nc5 Kc7 Ba5+ Kc8 Ne6+ Qc7 Rf4 Qa7 Nc7 Kd8 Re4 Bg5 Rd4 Ke7 Rc4 Kf7 Rf2 Be7 Rc1 Na3 Ra1 Nb1 Bd3 Rc8 Ndf3 Rd8 Rc2 Rg8 Nd2 Re8 Be2 Rb4+
6rn/1kqpBR2/B2Pp1pQ/7Q/1nPN1N2/p3Kn1b/1qqR3b/n1r5 b - - 0 1 legal: proof: b4 c5 a4 cxb4 e4 b5 g4 bxa4 f4 h5 e5 hxg4 e6 fxe6 f5 exf5 Bc4 f4 Bf1 f3 Kf2 a5 h4 e6 d4 g6 c4 a3 d5 a4 h5 a2 h6 g3+ Ke3 b3 h7 f2 Kd3 a3 Ke4 g2 Kd4 b2 Qd3 Na6 Rh6 Bb7 Qb3 Bd6 Ne2 g1N Qc3 Nf3+ Ke3 Bh2 d6 Nb4 Qc2 Qc7 Nbc3 O-O-O Qd1 b1Q Nb5 Kb8 Nbd4 Qb2 Bg2 f1Q Nf4 Qh1 Rh5 Nh6 Rf5 Rdg8 Rf7 Be4 Rb1 a1N Qe2 Qc2 Rb2 Kb7 Qd2 Bf5 Qd1 Qb1 Rd2 Qb2 Qe2 Bh3 Qd1 Rg7 Qe2 Rb8 h8Q Qd1 Qh7 Qdc2 Qd1 Ng8 Qh5 Nh6 Qh1 Qbb1 Bb2 Rgg8 Bc3 Qbb2 Qc1 Na6 Ba5 Nb4 Qh1 Qc8 Bd8 Qc7 Be7 Rbf8 Rh7 Nf7 Qh6 Nh8 Rf7 Ra8 Qd1 Ra5 Bh1 Rd5 Qe2 Ne1 Qeh5 Nf3 Bg2 Rg5 Bh1 Rg1 Bg2 Rc1 Bh1 Kc8 Bg2 Nh4 Bc6 Nf3 Bb5 Kb7 Ba6+
b1N2NR1/b4Pnn/kr3n1B/1Pr3r1/5Kn1/2N1B3/1B1Qb2n/1qn1n3 b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 d5 c4 dxc4 a4 f5 Ra3 fxe4 f5 Qd7 Rh3 Qd8 Rf3 h6 Rf4 gxf4 g5 h5 Bh3 Qd5 Bg4 hxg4 Qb3 Qd3 Qd1 Qd8 Ke2 Kd7 d4 Kc6 h4 Kb6 d5 e5 g6 c5 f6 e3 h5 f3+ Kf1 c3 h6 e4 g7 e2+ Kf2 e1N Kg3 e3 d6 e2 h7 c2 f7 f2 d7 f1B Bg5 c1N Qd2 c4 Qd1 c3 Rh2 c2 Rh6+ Nf6 g8N b3 Bh4 b2 Nd2 b1R Rg6 Ng2 Nh6 e1N Qe2 Rg8 h8B Ne3 Nb3 Ra5 Nh3 Bc5 Nd2 Nb3 Nf4 c1N Bg7 Nd4 Bg5 Ndf5+ Kh2 g3+ Kh1 g2+ Kh2 g1N Nd3 Ngf3+ Kh1 Nh2 Qf2 Ka6 Bf4 b5 Ne4 b4 Qd2 b3 Nc3 b2 Ne5 Neg4 Be3 Qe8 d8B Qb5 Nd7 Ba7 Nf8 Be2 Bc7 Nd7 Be5 Bb7+ Kg1 Rh8 Ng8 Ba8 Bh6 Ng7 Ne7 Rg8 Rg5 Nh7 Nc8 Ndf6 Rg6 Nef3+ Kg2 Ne1+ Kg3 Qe8 Bc7 Rc5 Kf4 Qb5 Bd6 Ra1 Be5 b1Q Nd5 Ra3 Bb2 Rd3 Nc3 Rd6 Rg5 Rb6 Ng6 Re8 Nf8 Ree5 Rg6 Nge8 Rg7 Rg5 Rg8 Ng7 axb5+
1nbnR1K1/7r/1bB1kq1N/2Q1n3/1p4R1/q1B1r1Pp/2n3RP/1Bb1n3 b - - 0 1 legal: proof: e4 c5 f4 d5 b4 cxb4 a4 bxa3 f5 dxe4 f6 b5 Qg4 gxf6 Nc3 f5 Qh5 a6 Nxb5 axb5 Qd1 f4 Kf2 Kd7 d4 f5 c4 e5 d5 h5 c5 f3 Ke3 f4+ Kf2 a2 d6 b4 g3 e3+ Ke1 e4 c6+ Ke6 c7 e2 Kf2 e1N d7 h4 Bb5 h3 Qd4 Rh7 Ba3 Bc5 Bc6 Ne7 Rd1 a1Q Ne2 Bb6 Bb2 Ra3 Rg1 Re3 Bc3 Qa3 Rg2 Qh8 d8R Qf6 Bb7 Nec6 Rf8 Nd8 Qc5 Qh8 Bc6 Qf6 Kf1 f2 Rd5 Rf3 Rg5 e3 Rg4 Nf7 Nc1 Nd8 Ke2 f1N Nd3 Nd2 Ne5 Nc4 Nf7 Ne5 Nh6 Qh8 Kd1 e2+ Kd2 Qg7 Nf5 Re3 Nh6 Bd7 c8B f3 Ba6 f2 Bd3 Qf6 Bb1 Bc8 Bf3 N1d3 Bc6 e1B+ Kc2 Qc1+ Kb3 f1N Ba1 Bd2 Bc3 Ng6 Kc4 Qa3 Be8 Ne1 Bc6 Ne5+ Kd4 Rf3 Ke4 Ne3 Kd4 Nf5+ Ke4 Re3+ Kf4 Qh8 Kg5 Bc1 Kh5 Nd4 Kg5 Nc4 Kg6 Ndc2 Nf5 Rh4 Nh6 Qf6+ Kh7 Ne5 Kg8 Rh5 Nf7 Rh7 Nh6 Rd7 Ba4 Rf7 Bc6 Rh7 Re8+
B1b5/1Q1q3n/4n2P/2q1kBpR/B5nr/qrr1R3/R1nbKp1P/2N5 b - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 f4 axb4 g4 h5 gxh5 e5 Kf2 exf4 Nc3 bxc3 Bb2 cxb2 Ke1 Qe7 Kf2 Qf6 Ke1 Qd8 c4 Ke7 e4 Ke6 e5 b1R c5 g5 c6 f5 c7 d5 a5 b5 a6 b4 a7 d3 Ra5 d2+ Ke2 b3 Qe1 d1Q+ Kf2 f3 Ra4 f4 Qc3 d4 Rc4 b2 Qe1 d3 Qc3 d2 Qd3 Qd4+ Qe3 Nc6 Ra4 Nd8 Bd3 Bb4 Be2 Qb3 Nh3 d1Q Bf1 Qa3 Bb5 Nf6 Bd3 Qc5 Ng1 Nh7 Ne2 Bd2 Bf5+ Kd5 Rg1 Ne6 Re1 Rc1 Kf1 Rc3 Nc1 Rb8 a8B+ Rb7 Ra7 f2 Qf3+ Kd4 Ra6 Rbb3 Qb7 b1N Ra5 Qg4 Re3 Qh3+ Ke2 f1N Kd1 f3 h6 f2 Ke2 Rd8 Ra6 Rd6 Ra7 Rc6 Ra4+ Kd5 Rh4 Rc4 Rh5 Rh4 Rf3 Ne3 Rg3 Bd7 c8R Ng4 Re3 Kd4 Rg8 Bc8 Rh8 Qe7 Rg8 Rcc3 Rg7 Qec5 Rg6 Nd8 Ra6 Ne6 Ra7 Qa1 Ra2 Na3 Qg2 Nc2 Qb7 Nef8 e6 Qb2 e7 Qba3 e8B Ne6 Rd3+ Ke5 Bc6 Qg2 Ba4 Qgc6 Rg3 Qd7 Re3+
5B2/bK3P1k/2NrRp1p/r4P2/3RN3/pbrQ2bn/2p1N2R/1n2q2b b - - 0 1 legal: proof: b4 d5 c4 dxc4 h4 b5 e4 g5 a4 bxa4 b5 gxh4 e5 f6 e6 a3 b6 c3 b7 a2 Be2 Qd5 Bh5+ Kd8 Be8 Qh5 Bf7 Qxf7 exf7 Kd7 Qe2 Bxb7 Qd1 Bc8 Ke2 Ke6 Kf3 Kf5 g4+ Kg6 Ke4 c5 Kd5 a5 d4 e5 f4 h6 f5+ Kh7 g5 h3 Qg4 c2 Nf3 e4 Ng1 c4 Qf4 c3 Qf1 e3 Qd3 a4 Nd2 a3 Qe2 h2 Nf1 Na6 Kc6 Nc7 d5 Bd6 Qc4 e2 Qa4 e1Q Qb5 Ne6 Nd2 Ra5 Qd3 Nf4 Ne2 Be6 Ne4 Nh3 Be3 c1R Bc5 Ne7+ Kb7 Bg3 d6 Bb3 d7 Nd5 d8N c2 Rb1 a1B Nc6 Nc3 Bf8 Rd1 Rb2 Rd2 Rb1 Rg8 Rd1 Nb1 g6+ Kh8 g7+ Kh7 Nd8 Bd4 Nc6 Rh8 g8R Ba7 Rg4 Rg8 Rh4 Rg7 Rf1 h1B Rf3 Rg4 Re3 Rf4 Rh5 Rf3 Rh4 Ng5 Rh2 Nh3 Qa6 Rd8 Rd4 Rd6 Qd3 Ng1 Nc5 Nh3 Re6 Re3 Ne4 Rf3 Qc4 Rc3 Qd3
B1bQ4/Pq2RNqB/1n3rqq/k1b1NnP1/2n1n3/b3q2n/N2r4/4B2K b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ra3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 d5 c4 Kd7 e4 Kc6 g4 Kb6 Kg2 f5 e5 h5 c5+ Ka5 c6 b5 c7 f3+ Kh2 d3 g5 h3 e6 f2 e7 h4 e8N d2 Bc4 f1Q Bd3 f4 Be2 f3 Nc3 d4 Qb3 d1N Bd3 a2 Ne4 a1B Qd5 f2 Nf3 Qf6 Qb3 b4 Bb2 Qe2 Bc4 f1N+ Kg1 d3 Nf2 h2+ Kg2 d2 Bc1 Qe3 Qa2 b3 Qb1 b2 Be2 Qg7 Qe4 b1Q Ng1 Nf6 Bb2 Nbd7 Qf5+ Bc5 Bc4 Ng3 Ne2 Nb6 Ng4 Nf2 Nc3 d1N Qd3 Rf8 Bd5 Nh3 Ne5 Nfe4 Nd6 Rf6 Na2 Nf5 Ndf7 Ra6 Ba3 Nb2 Ba8 N2c4 Qd8 Bb2 Re1 Rd6 Kh1 Rd2 Nh6 Qbd3 Nhf7 Qd6 Re2 Bc1 Bb2 Qdg6 Bd4 B1a3 Re1 Qd3 Bf2 Qe3 Re2 Nd5 Bg3 Rf6 Be1 Ndb6 Bg3 Ka6 a5 Kb5 a6 Ka5 a7 Ng1 Kg2 h1Q+ Kf1 h3 Be1 Ba6 c8B h2 Bd7 Bb7 Ba4 Bc8 Bc2 Qhf3+ Rf2 Qfh5 Kg2 Qhh6 Kh1 Nh3 Re2 Nc3 Kg2 Ng3 Qd4 Qee4+ Nf3 Qgh5 Nh8 Qe6 Bg6 Nf5 Bh7 Q5g6 Nf7 Qe7 Qd8 Qe5 Kf1 Qg3 Re7 h1Q+ Ng1 Qe4 Nf3 Qb7 N3e5 Qf4+ Bf2 Ne4 Kg2 Qg3+ Kh1 Qe3 Be1
rR2q3/knK1N1bb/8/2nR1qPr/1N5N/b1r1bB2/4q1PR/q3rr1Q b - - 0 1 illegal: Other
1q1bq3/1PB1qrnR/4NQkr/n1RP2b1/5nNn/N6q/b2n3b/2K3R1 b - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 Ra3 b5 Ra1 bxa4 g4 exf4 g5 f3 Bg2 fxg2 g6 hxg6 Kf2 g5 Ke1 g4 Ra3 g3 Ra2 Rh7 Ra1 Rh8 d4 c5 Kd2 a5 b4 f5 h4 Kf7 e4 g5 b5 a3 e5 g4 h5 a2 h6 a4 h7 f4 e6+ Kg6 b6 c3+ Kc2 a3 b7 c4 e7 f3 e8N f2 Nc7 f1N Qe1 Qe7 Rh3 Nc6 Nb5 Be6 Nc7 Nf6 Ne8 Nh5 Nf6 Na5 Bb2 Ng7 Rh2 Nd2 Ne2 g1B Qc1 g2 Nh5 g3 Rh4 Bh2 Qe1 g1N Rf4 g2 Rf7 Ngf3 Qd1 g1N Neg3 Ne2 Qh1 Nh4 Rf2 Nf4 Kc1 c2 Rf1 Qe8 Ne2 Be7 Nec3 Bd8 Qf3 Rf8 h8R Rf7 Qf2 Ra6 Na4 Rc6 Nbc3 Rd6 Rb1 a1Q Nf6 a2 Nce4 Rc6 Ba3 Qc3 Nb6 a1Q Ng4 Qh3 Bd6 Qaa3+ Rb2 Qc5 Bc7 Qce7 Ng5 Bd5 Rb5 Rcf6 Kb2 c1B+ Kc2 c3 Rh7 Rd6 Ne6 Ba2 d5 Rc6 Kd1 Rd6 Nc4 c2+ Ke1 Rc6 Rc5 Nfh5 Bb8 Nb1 Rg1 Bg5 Rb5 Nd2 Na3 Ra6 Qd4 Nf4 Qe5 Rc6 Nd4 Rcf6 Ne6 c1Q+ Kf2 Qcc6 Ke1 Qc8 Bc7 Qb8 Qb2 Kf5 Kd1 Rg6 Rc5 Rh6 Kc1 Kg6 Qf6+
2b5/1BBR4/R3bqPK/b2n2r1/p2Q2q1/Pqq3k1/bq1R2b1/2r1N1nB b - - 0 1 legal: proof: c4 c5 b4 e5 d4 cxd4 h4 g5 f4 exf4 c5 gxh4 Nc3 d3 Nd5 b6 b5 bxc5 Nb4 cxb4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 f5 e4 d5 g4 a5 a3 d2 g5 b3 g6 b2 b6 b1B b7 h3 Ra2 h2 Be2 f3 Bb2+ Kf4 e5 d4 e6 d3 e7 a4 e8B f2 Bf6 f1B Bg7 Nc6 b8R Qf6 Rb3 Qc3 Nh3+ Kg3 Rg1+ Bg2 Rb5 h1B Bf7 f4 Re5 f3 Re3 Nge7 Re5 f2 Bg4 f1Q Bh6 Nd5 Qc1 d1Q Bg5 d2 Be8 Bb4 Bf6 Qdb3 Bg7 d1Q Bf6 Nd4 Re1 Ne2 Rd2 Ba5 Qb2 Ba2 Kg5 h5 Bd8 h4 Nf2 h3 Nd3 h2 Be6 Rg8 B6f7 Qff6+ Kh6 Qdc1 Qa1 Q1b2 Bc6 Ra6 Rgf1 Ng1 Red1 Bgh3 Be6 B1g2 Ne1 h1Q Bb7 Rf8 Rf4 Rc6 Bc7 Re8 Bg4 Re5 Bf3 Rc4 Rf5 Rc5 Rh5 Bhe6 Be4 Qh3 Bf3 Bf1 Bh1 Qg4 Rf5 Bg2 Rf4 Qd8 Rb4 Qe7 Rb6 Qf6 Rd6 Rg5 Ra6+ Nf4 Rd7 Rc4 R1d6 Nd5 Qd1 Qe3 Qd4 Rc1 Rdc6+ Qee5 Rc2 Q2c3 Rd2 Qcb2 Bb6 Qee3 Bd8 Qec3 Bc7+
1n3q1n/3BRb1B/4Rr2/nP6/br2Pqpb/kN1Rr3/3Brn2/4nKQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bh3 g3 Bf1 g2 Nc3 cxd6 Ne4 d5 Ng3 fxg3 Bh6 d4 Bg5 Bc5 Bc1 Bf8 b4 Ke7 e4 Kd6 h4 g5 c4 a5 b5 Kc5 h5 Kb4 h6 d5 h7 f5 c5 f4 c6 f3 c7 f2+ Ke2 g4 Rh4 a3 Rh2 d3+ Ke3 d4+ Kd2 a4 Qc2 a2 Be2 f1R Rh5 a3 Rh1 Be6 c8B Be7 Rh2 Bf7 Qd1 Ra4 Bb2 Nh6 Qc2 Qf8 Qc6 Bh4 Qc7 Rf6 Ke1 d2+ Kd1 Kb3 Qd8 Rb4 Nf3 g1Q+ Bf1 g2 Ke2 d1B+ Kd2 d3 Bd4 Qf2+ Be2 g1N Rc1 a1N Rc7 a2 Bc3 Ka3 Qd4 Ba4 Rh3 Nb3+ Kd1 a1N Nd2 Na5+ Nb3 d2 Rd3 Nc2 Re7 Qf4 Bd7 Nh3 Qg1 Ne1 Bf1 Nf2+ Ke2 d1R Bd2 Ra1 Re6 Ra2 Re7 Rg8 h8R Rg5 Re6 Rc5 Rh7 Rc3 Rg7 Bh5 Rge7 Nf7 Bh3 Nh8 Kf1 Bf7 Bg2 Rac2 Bf3 Qe5 Be2 Rb2 Rdd6 Rbc2 Bc4 Re3 Rd3 Qf4 Rb6 Bg6 Bg8 Bf7 Rbe6 Ra2 Bh7 Rc2 Bc3 Rce2 Bd2
k1rq1bN1/2N3pN/4n1P1/2B3rr/2b5/KB3b1b/Q3Pnn1/b1R1B1qn b - - 0 1 legal: proof: h4 c5 g4 e5 a4 h5 b4 a5 d4 axb4 g5 f5 Qd2 f4 Ra3 e4 Rg3 cxd4 Qd3 exd3 Rg4 hxg4 Rh3 Be7 Rf3 Bf8 Rg3 fxg3 Kd2 d5 f4 Kd7 c4 Kc7 c5 b5 g6 Kb7 f5 b3 h5 b2 h6 g2 f6 b4 a5 g3 h7 b3 f7 Na6 Nc3 b1R Nf3 g1Q Ne1 g2 Bb2 Nh6 Na4 Nf5 Nc3 Ng3 Ba1 b2 Ne4 Nc7 Nc3 Ne6 Ne4 Nh1 Nf3 Rc1 Nh2 b1B a6+ Ka7 c6 Rc5 Kd1 d2 Nf6 Be4 c7 Bf3 Bc3 Ra5 Kc2 d1N Kb3 d3 Nhg4 d4 Bd2 Ne3 Be1 d2 Ng8 d1N N4f6 Rg5 Ka2 Bd7 c8R d3 Rc1 d2 Kb3 Kb8 a7+ Kb7 Ka2 Rc8 a8N Ndf2 Nc7 d1B Kb2 Kb8 Ka2 Bb3+ Kb2 Bd6 f8B Bc4 Be7 Be5+ Ka3 Ba1 Bf8 Nc5 Bd6 Bh3 Bf8 Ne6 Be7 Qh2 Bc5 g1B Bg2 Qg3 Nb5 Qg4 Nc7 Bh2 Rd1 Bd6 Rc1 Bc6 Be4 Ng2 Bc2 Bf3 Bb3 Bf8 Nh6 Rg8 h8Q Kb7 Qh7 Rh8 Nhg8 Qgd4 Qh4 Rhh5 Nh7 Qd1 Qe4+ Kb8 Qc2 Kb7 Bd2 Qg1 Be1 Kb8 Qa2 Kb7 Nd5 Ka8 Nc7+
q1k4Q/B1nqNpb1/b1P2br1/1q4r1/n3N3/K2nR1qb/3N3P/4Br1B b - - 0 1 legal: proof: b4 a5 g4 axb4 e4 c5 a4 h5 f4 hxg4 f5 d5 f6 dxe4 Bg2 c4 Bf1 exf6 Ra2 f5 Rb2 f4 Rb3 cxb3 c4 Kd7 d4 b5 Kd2 g5 c5 f3 a5 e3+ Kd3 g3 d5 f2 a6 g4 d6 e2 a7 e1N+ Kd4 g2 Bh6 b2 Nf3 g1B Be3 b3 Kc3 b4+ Kc4 g3 Bd2 g2 Kb5 Nf6 Ka4 Rh6 Nd4 Nd3 Qc2 Ne4 Bc3 Na6 Ne2 Bg7 Nd2 b1Q Qc1 b2 Bf6 b3 Be7 Nc3+ Ka3 Na4 Qc3 Qd1 Ng3 b1R Bh4 b2 Nge4 Nc7 Be2 f1Q Be1 Ba6 c6+ Kc8 Bf3 Rg6 Qd4 Rb8 a8N Rb5 Qe5 Bd4 d7+ Kb8 Nb6 g1Q Qh5 Bdf6 Nd5 Qg3 Ne7 Rbg5 Ng8 Qe8 d8B Kc8 Qh7 Rc1 Be7 b1B Bc5 Ba2 Bd4 Be6 Qh8 Bh3 Ba7 Qd8 Bg2 Qdg4 Rg1 Qgd7 Bh1 Qff5 Rg2 Qb5 Re2 Q8e8 Bef2 Rf1 Re3 Qb8 Be1 Qee5 Re2 Qa8 Re3 Qb5 Ne7#
b4rq1/k1N2bbp/7N/1pb3KP/4N2Q/r1R2B2/rB2P3/bqnq1B1n b - - 0 1 legal: proof: b4 f5 d4 e5 a4 exd4 c4 a5 g4 fxg4 c5 axb4 Nd2 b3 Rb1 Bxc5 Ra1 b2 Nb1 Bd6 Ra3 Be7 Rf3 Bd6 Rf8+ Bxf8 Kd2 g5 f4 d5 h4 Kd7 h5 Kc6 f5 Kb6 f6 c5 a5+ Ka7 a6 b5 f7 d3 Ke3 d4+ Ke4 g3 Qd2 g4 Kf4 g2 Qe3 c4 Qe5 g3 Qg7 d2 Qg4 d1B Qg5 d3 Qg4 d2 Qf3 c3 Na3 b1Q Qd3 c2 Qd7+ Bb7 Qc8 Nc6 Qg4 Nf6 Qg5 Nb4 Rh4 Nd3+ Kf5 Ng4 Qe7 Bg7 f8N Ngf2 Bb2 c1B Qf7 Bb3 Nh3 g1B Ng5 d1Q Qf6 g2 Nf7 Nh1 Nh6 Bf7 Rh3 Bc5 Qh4 g1R Ne6 Rg3 Nc4 Rf8 Nd6 Bd2 Nc7 Nc1+ Ne4 Ra3 Rb3 Bdc3 Kf4 Qe8 Kg5 Ra2 Ba3 Ba1 Rc3 Rd8 Bb2 Rd3 Rc2 Rda3 Rc3 Kb6 a7 Bbd5 a8B Ka7 Bc6 Qe6 Be8 Ba8 Bc6 Be8 Nf6 Qg8 Bf3 Bf7 Ne4
2Kb1r1q/3rp1P1/1PR5/BRQp2N1/b1bk1B1q/nbn5/1B2n2b/R4q2 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 fxe6 f5 e5 Be3 e4 Bg5 Qc7 Bc1 Qd8 g4 Qb6 f6 Qd8 Nd2 Qb6 Bh3 Qd8 Ndf3 h6 g5 h5 Bf5 gxf5 Ne5 Bh6 Ng4 hxg4 Ne2 Bg7 Ng1 Bf8 Kf2 Kf7 Kg3 Ke6 Kf4 Kd5 b4 a5 h4 a3 c3 g3 f7 e3 h5 a2 b5 e2 h6 e1Q g6 a4 b6 d3 c4+ Kd4 c5 d5 h7 a3 c6 g2 c7 d2 Nh3 g1B Qc2 d1B Nf2 Nf6 Qb3 Bd7 c8R Ne4 Qh3 Bg7 f8B Nc6 Qg2 Bb3 Qg4 Nc3 Rh5 Bh2+ Qg3 Ra7 Rg5 Be5+ Kf3 f4 Rg4 Bc7 Bh6 Rf8 Ne4 Rb7 Qh3 Qh4 Bb2 Qe8 Rgg1 Bd8 Ng5 Rc7 Rab1 a1N Rgf1 a2 h8B+ Kd3 Qe6 Nc2 Qd6 a1Q Qc5 Na3 Bd4 Rb7 g7 Ra7 Be3 Rb7 Bd2 Nd4+ Kg2 Bb5 Rc6 Nde2 Kf3 B5a4 Rg1 Rd7 Rh1 Qe1 Kg4 f3 Bf4 f2 Bd2 Ne4 Ba5 f1B Rg1 N4c3 Rh1 Rh8 Kf5 Rf8+ Ke6 Qh4 Rg1 Qa2 Ra1 Qb1 Rg4 Qbe1 Rb4 Qeh5 Rb5 Qc1 Nf3 Ke4 Bf4 Qh8 Ng5+ Kd3 Qd6 Kd4 Qc7 Ng1 Qc8 Bfc4 Qc7 Ne2 Qd6 Rb7 Qc7 Qd1 Kd7 Qf1 Kc8 Ra7 Qd6 Rd7 Qc5+
B1n4b/1b2b2P/1B1Qr1P1/2R3Nk/r2R1bb1/1p3r1n/1R2qp2/b1q3BK b - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 c5 Qf3 cxd4 Nc3 h6 Nce2 h5 Nf4 gxf4 g5 Na6 Qh3 Nb8 Qg4 hxg4 Kf2 Kf7 Kg2 d5 c4 b5 a4 e5 h4 b3 c5 g3 f6 Kg6 c6 e3 a5 b2 f7 b1Q c7 e4 a6 d3 a7 d4 Bd2 b4 Ra5 b3 Ne2 f3+ Kg1 f2+ Kg2 Qe8 Nc1 e2 Ra2 e1B Ba5 e3 Bb6 e2 Rh2 d2 Ra3 d1R Nd3 Nc6 Rh3 Nh6 Ra4 Kh5 g6 Bb7 c8R Bc3 Rb4 e1B Rh2 Qe2 Rh3 Be7 f8B Ba1 Nb2 d3 Nc4 d2 Ne5 Qc1 Rh1 Nf7 Nf3 Ng5 Rd4 Nh3 Ng5 Rg8 Bg7 Rf8 Be5 Rf3 Rc7 Re8 a8Q Na7 Rc5 Nc8 Bd6 Bc3 Rg1 Ba1 Kh1 g2+ Kh2 Rf7 Qa6 Rf3 Rh1 g1B+ Kg2 Kh6 h5 Bh2 Rg1 Bf4 Kh1 Bd8 Bg2 Re6 Rf1 Be7 Qa3 Qc2 Rg1 Rb1 Be5 d1B Qa6 Bec3 Rf1 Be3 Bh2 Qc1 Bg1 Bf4 Re1 Rb2 Rf1 Ra2 Qa3 Kg7 h6+ Kf6 Qa6 Ra4 h7 Kg7 Qd3 Kh6 Re1 Kh5 Qd2 Qe4 Re2 Bcb2 Qb4 Bc3 Rb2 Qe2 Rdc4 Bh8 Qd2 Bc2 Qd6 Bf5 Rb4 Bg4 Rd4 Rd3 Bc6 Rf3 Bd5 Ba6 Ba8 Bb7 Bc7 Bg3 Bd8 Bf4 Bb6
q1Nb1rq1/P2Rb1pn/3RqN2/B1RpNbkr/6b1/5q1q/1K3P2/4n1Q1 b - - 0 1 legal: proof: e4 h5 b4 f5 d4 fxe4 g4 hxg4 a3 c5 b5 cxd4 b6 axb6 Bh6 b5 Bc4 b4 Ba2 b3 Bc1 bxa2 Kd2 Kf7 h4 Kf6 c4 e5 Kc2 d5 a4 b5 h5 e3 a5 d3+ Kc3 d2 a6 b4+ Kb3 g3 c5 e4 h6 g2 h7 e2 c6 e1Q c7 e3 Rh4 e2 Na3 Nd7 Rh1 Kg5 Rh2 Ngf6 Nb1 Ne5 Rh1 Nd3 Kc2 b3+ Kc3 b2 Rh4 Be7 Rh6 Qg8 Kb3 Bg4 Nc3 b1B Bb2 Rf8 c8N Qf1 Bc1 Ne1 Kb2 Bbf5 Rb1 Bd8 a7 a1B+ Ka2 Be7 Rb7 Bd8 Kb3 Bb2 Ka2 Ba3 Rd7 Bd6 Ba3 B6e7 Qb1 d1Q Bb4 Qa4+ Kb2 Qc6 Ba5 Qa8 Rg6+ Kh5 Nf3 g1Q Qc1 Qgg2 Ne5 Qf3 Ne4 Q1h3 Qb1 Ng2 Qg1 e1Q Ng3+ Kh4 Nh5 Qee4 Rh6 Ne1 Rg6 Ne8 Rc6 Kg5 Rc5 Nf6 Nc4 Qee6 Ne5 Rf7 Rd6 Nd7 Nf6 Nf8 Nh5 Rf6 Rd7 Rh6 Nf6 Rh5 Bc7 Qec6 Ba5 Qf7 Ne8 Rg8 h8R Qcf6 Rh6 Nh7 Qh2 Rf8 Qg1 Qfc6 Re6 Qg8 Nf6 Qd6 Rb7 Qd7 Rd6 Qde6 Rbd7
1N1b1R1b/Q2P2q1/q6r/nrrPb2p/5q2/1pr2n1K/4R3/k1BbRBB1 b - - 0 1 illegal: Other
2rk1q2/r1PqrQ2/r1p1p2B/B4B2/5RnN/KP1N1n1b/3Nq2b/n5q1 b - - 0 1 illegal: No possible last move
rRK1b3/2N1NkqR/1p1pR3/nr6/bbn2n1p/N1b1Pq2/2Q1Pb2/5B2 b - - 0 1 illegal: Other
1b1N3b/n5Rp/1Pp3bk/p1r1n2r/1qnBn3/nQ3B2/2Pq4/K2R1B1R b - - 0 1 legal: proof: e4 d5 a4 dxe4 f3 exf3 Ra3 b5 Ra1 bxa4 h4 g5 b4 gxh4 Na3 Qd3 Nb5 Qd6 Nd4 Qd8 Nb3 axb3 d4 e5 Kd2 f5 Kc3 Kf7 Kb2 Kg6 g4 h3 b5 e4 d5 f4 g5 f2 d6 e3 d7 e2 b6 e1B Ba6 f1Q Kb1 f3 Qd6+ Nf6 Bc4 f2 Qe7 h2 Ba6 b2 Qe3 Ng4 Qc5 Nc6 Nf3 Bg7 Bd2 Nge5 Qd4 Qc4 Qc3 f1N Qa3 Bg3 Bf4 Qb4 Nd2 Ne3 Qc3 N3c4 Ka2 b1N Nf3 Nba3 Nd4 Bb7 Rhd1 h1N Be3 Nf2 Ne6 Ne4 Qb3 Rg8 Rh1 Bh8 Rag1 Rc8 Ka1 Bf4 Bb5 a5 Bd4 Na7 Ba6 Bh2 Rg4 Kh5 g6 Kh6 g7 Rf8 g8B Rf5 Bf7 Rh5 Rg7 Qg5 d8R Qgd2 Rd5 Bc6 Nd8 Be8 Be6 Bg6 Bg4 c6 Ne6 Rf8 Bf3 Rff5 Rdd7 Nd3 Nd8 Rc5 Rd5 Bb8 Bb5 Nde5 Ba6 Nb2 Bf1 Nbc4 Bb2 Qdc3 Rd1 Qd2 Bd4
1r2r1NB/p1r3RK/1Pq3R1/Q3bR1b/3nPb1q/1n5p/r2N2pk/5r1N b - - 0 1 legal: proof: d4 e5 f4 exf4 a4 g5 h4 gxh4 g3 b5 d5 bxa4 d6 f3 Bg2 fxg2 Bd2 cxd6 Bh6 d5 Bc1 d4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf4 h5 e4 d5 c4 h3 b4 h4 b5 h2 b6 h3 c5 a3 g4 d3 g5 d2 c6 d4 g6 d3 c7 a2 g7 Nf6 Kg5 Ke5 Kg6 Kf4 g8R Kg3 Qe2 d1R Na3 d2 Qa6 f4 Qb5 f3 Qe8 f2 Rg7 f1R Rh7 Bh6 Bb2 Bf4 Rb1 a1B Qf8 Rc1 Qg8 d1R Qf8 Rd2 Nc4 Bg4 c8N Nfd7 Qf5 Nc5 Rg7 Re8 Ne7 Nc6 Kh7 Nb3 Qa5 Rb8 Ng8 Ncd4 Bc3 Ra2 Nd2 Rcc2 Rd1 Qd7 Bb2 Rc7 Rc1 Qa4 Rc6 Qc4 Rg6 Qc6 Bc3 Bb2 Ngf3 Ba1 Ne1 Bb2 Rg1 h1Q Nd3 Kh2 Nf2 Ba1 Bb2 Bh5 Bc3 Rc1 Rd1 Qe1 Nh1 Qh4 Rf1 Rd1 Rf3 Rf1 Rf2 Nc2 Bf6 Bae5 Rf3 Ncd4 Rf2 Bh6 Rf5 Bg5 Re7 Be3 Bh8 B3f4 Reg7
bqrqqB1B/n3N2b/R1p1KQ2/1pBRb1rn/5q1n/pP3P1k/6R1/8 b - - 0 1 legal: proof: c4 f5 e4 fxe4 a4 d5 a5 dxc4 a6 Nxa6 Nc3 g5 Nb5 g4 Na3 g3 Nb1 Nb4 Be2 Na2 Bd3 Kd7 Bf1 Ke8 f3 h5 Ke2 Be6 Nc3 Rh7 Qe1 Kf7 Nd1 Qd6 Nf2 gxf2 g4 Ke8 g5 Rh8 Qd1 Bc8 Bh3 Qd8 Bg4 hxg4 Ke3 Kf7 Kf4 Kg6 Ke5 Kh5 d4 Kh4 g6 f1B h3 b5 b3 a5 d5 g3 d6 e3 g7 e2 d7 e1N Rh2 c3 Rb1 c2 Rf2 a4 Bd2 c1Q Re2 a3 Rf2 g2 Rb2 Nb4 Re2 Rh5+ Ke6 Rg5 Kf7 e5 Qc2 e4 Bf4 e3 Qc6 Bb7 Qf6 Rc8 Bd6 Ba8 Bc5 Bd6 Ke6 Nc6 Rbd2 Na7 Rd5 c6 Rb2 Qc4 Ne2 g1Q Nf4 Bd3 Rg2 Be5 Bf8 e2 Ng6+ Kh5 h4 Qgb6 Ne7 Bh7 Rg1 Qb8 Rg2 Nh6 g8R Nf5 Rg7 Nd3 Rg8 e1Q Rh8 Qe8 d8B Qf4 Bb6 Qa5 Bc5 Qad8 Rg4 Qh2 Ra4 Qf4 Rg8 Ng3 Rg7 Ne1 Ra6 Ng2 Qf5 Kh6 h5 Nh4 Rg8+ Rg7 Qf7 Kg5 h6 Rg6+ Qf6+ Kh5 Rd1 Rg5 Rd6 Ng6 Rg7 Kh4 Rd5 Kh3 Rg8 Nh4 Rg7 Bd3 h7 Nh5 h8B Bh7 Rg6 Rf5 Rg1 Rg5 Rg2
q7/r1B2B1R/pKb2n1p/2rr3P/b2bpnNk/rRPQ4/b3r2R/3B4 b - - 0 1 legal: proof: e4 b5 Ke2 c5 f4 d5 a4 bxa4 b4 dxe4 f5 cxb4 f6 e3 Nc3 gxf6 Kf3 f5 Ne4 f4 Nf2 exf2 Ke4 f3 Kf4 Na6 Ke3 Nb8 g4 e5 h4 Ke7 d4 Kf6 h5 Kg5 d5 f5 d6 b3 d7 b2 c3 b1B Ra3 e4 Kd4+ f4 Ra1 a6 Be3 a3 Kc4 h6 Bb6 a2 Qd6 Ne7 Kc5 Nd5 Ba5 Bg7 Bg2 f1B Nh3+ Kh4 g5 f2 g6 f3 Qe5 Nf4 Bb6 Ra7 Qe8 Bb5 Qe6 f1R Rg1 f2 Bf3 Rd1 Qc4 f1R Rh1 Bc6 Rh2 Rf2 Qd3 Re2 Bc7 Rf8 Kb6 Rf5 Bg4 Rc5 Bf3 Qh8 d8R Bd4 g7 B8d7 g8B Ba4 Bd5 Bdc6 Rd7 Rdd2 Rh7 Qf8 Qb5 Rd3 Bf7 Nd7+ Ka5 Nf6 Kb6 Rdd2 Qd3 Qa8 Bg4 Bbc2 Rah1 a1R Rb1 Ra3 Rb3 Bb1 Bf3 Ba2 Bg4 Rg2 Bf3 Rgg5 Bd1 Rgd5 Nf2+ Kg5 Rg2+ Kh4 Ng4 Re2 Rh2+
QR3n2/1K4pq/B1rP4/k6R/2nRb1np/1Nbr1b1p/b1P1N1bn/2N5 b - - 0 1 legal: proof: g4 a5 e4 f5 b4 fxg4 e5 axb4 e6 c5 h3 gxh3 Bg2 c4 Ba3 c3 Bb2 cxb2 Bf1 dxe6 Rh2 e5 Rh1 e4 Ke2 Kd7 Ke3 Kc6 a4 Kb6 f4 h5 d4 e5 f5 h4 d5 b3 f6 Rh6 f7 Nd7 Ra3 Ngf6 Qd3 Ng4+ Ke2 e3 Kf3 e2 Ke4 e1N Nc3 b1B Nd1 b2 Ne3 Nf3 Nf5 Ka5 Nd4 b5 Bg2 b4 Nf5 b3 Ne3 Nfh2 Ra2 Bb7 Qc4 Rc6 Bf1 Bb4 f8N Bc3 Ne6 Qh8 d6 Nf8 Kd5 e4 Ne2 Qh7 Nf5 e3 Nc1 e2 Ng3 e1N Qe4 Nef3 Nge2 Nd2 Nc5 Nc4 Qe8 Ra7 Qa8 Raa6 Ra3 Ba2 Rg1 b1B Rh1 Kb4 a5 b2 Rg1 Rab6 a6 Bb3 a7 B1a2 Rh1 b1B Ra5 Ba4 Rg1 B2b3 Rg3 B1a2 Rd3 Bb5 Rd4 B5a6 Qc8 Ba8 Qe8 Bc8 Qe4 Bf5 Qe8 Bb7 a8R Ba4 Rb8 Bb5 Raa8 B5a6 Qd8 Ka5 Ra7 Ba8 Re7 B6b7 Re5 Bg6 Qe8 Rb3 Rh5 Nd2 Nf4 Bf5 Ba6 Nc4 Nfe2 Ng6 Qh8 Be4+ Ke6 Bg2 Kd7 Nf8+ Kd8 Be1 Qg8 Rd3 Qh8 Bc3 Qg8 Rb6 Kc7 Bbf3 Qh8 Bad5 Kc8 Rc6+ Kb7 Bde4 Ra8 Ne6 Qb8 Bb4 Qa7 Bc3 Rb8 Nf8 Qa8 Bg6 Ne4+ Bf5 Nc5 B5e4 N5b3+
bB3R2/2B1Nb2/1r4q1/N1kn3N/Pb1p1bpn/1K1Qnn2/B3pP2/2r2q2 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Bf1 b4 Ra3 bxa3 Kd2 b5 c4 e5 Kc2 Ke7 h4 Kd6 h5 g5 h6 g3 h7 g2 Nf3 g1Q Bd2 b4 Bf4 d3+ Kb3 a2 Qd2 a1B Bh3 e3 Rh2 e2 Qd1 e1N Bd2 g4 Bc3 e4 Na3 e3 Nb1 e2 Bb2 d2 Qc2 d1N Nc3 Ra6 Qg6+ Kc5 Ng5 d5 Bc1 Ne3 Ka2 Ne7 Nd1 Bb7 Bg2 N7f5 Nh3 Be5 Nb2 d4 Bd5 Rb6 Kb3 Qd6 Nf4 Nc6 Nh5 Nh4 Qd3 Ba8 Rh3 Qh6 Rf3 Ne7 Rf7 Rg8 h8B Bf4 Be5 Qf1 Bb8 Nef3 Rf6 Qg6 Be6 Kc6 c5 N7d5 Nc4 Be7 Bd2 Rc8 Rf8 Rc7 Kb2 b3 Ba5 Rc8 Ka3 b2 Ka2 Rb3 Bac7 Rb6 Ka3 b1B Bg8 Ba2 Na5+ Kd7 Bf7 Bb3 Kb2 Bed6 c6+ Ke7 Be6 Bb4 Bg8 Nc3 Bf7 Be6 Bg8 Ncd5 Kb3 Bf7 Bd6+ Ke6 c7 Bg5 Bh2 Bf4 Bg3 Kd6 Bh2 Rd8 c8N+ Kc5 Ne7 Rc8 Ba7 Kd6 Bg3 Rc1 Bb8+ Kc5 Bh2 Bh6 Bhe5 Bf4 Bec7 Be8 Be6 Bf7 Kb2 Nf6 Ba2 Nfd5 Kb3
1rr2q2/3Knp2/P1R2pb1/1Rr2Q1Q/k1B5/N1r1Pnp1/1q5N/1Q2n3 b - - 0 1 legal: proof: f4 c5 a4 h5 g4 hxg4 c4 a5 f5 g6 f6 exf6 d4 cxd4 c5 Bd6 c6 Ba3 bxa3 d6 Bd2 d5 Bb4 axb4 c7 bxa3 Qd2 Qd7 Qxd4 Qd8 Qd1 d4 Kf2 Kd7 Kg3 Kc6 Kf4 b5 h4 g3 a5 g2 h5 a2 a6 b4 h6 Kb5 e3+ d3 h7 b3 Rh4 g5+ Ke4 b2 Rh1 g4 Nf3 g1N Rh6 g3 Bg2 d2 Ne5 Qf8 Kd5 Nc6 Qe1 d1R+ Qd2 Rb8 Ng4 Ne5 Na3+ Ka4 Rh5 b1Q Qd3 Nef3 Kc6 Qb2 Rb5 Bf5 c8Q Bg6 Kd7 Rc1 Bf1 Rc3 Qb1 Ne7 Nh2 Ne1 Bc4 Ngf3 Qc5 Rg8 h8Q Rc8 Qcf5 Rc5 Qc1 Rc8 Rb1 a1R Qhh5 Rc5 Rb6 Rh8 Rc6 Rg8 Nb5 Raa3 Qd1+ Rab3 Na3 Rh8 Qdd3 Rb8 Qf1 Qg7 Q1d3 Rhc8 Qde4 Qf8 Qd3 Qc2 Rb5 Qb2 Qb1
1KQR2r1/1n4b1/NB2r2n/2nrQ3/b3PNBb/pb2Pk2/4b3/N3r1q1 b - - 0 1 legal: proof: b4 c5 a4 b5 d4 cxd4 h4 bxa4 f3 g5 h5 e5 Ra3 e4 Rc3 a3 fxe4 Bxb4 h6 Bf8 Rch3 a2 Rh4 gxh4 Rh2 Nxh6 Rh1 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 a1B g4 a5 c4 h5 c5 f5 g5 d5 g6 a4 c6 f4 g7 h3 c7 f3 Kb6 f2 Bd2 h2 Bc1 a3 Qe1 h4 Bg2 f1B Nc3 d3 Bg5 d2 Be7 Kf4 Bc5 d1B Na2 d4 Nc3 h3 Nf3 d3 Na2 d2 Nc1 Na6 Ne5 Qg5 Bf2 Rh6+ Nc6 Re6 Rg1 h1R Bd4 h2 Bf2 Bb3 Bc5 d1R Bh3 Nh6 g8N Bd7 Kb7 Bag7 c8Q Rd5 e3+ Kf3 Bb6 Be2 Nf6 Be7 Nb4 Bda4 Nh5 Nc5+ Kc7 Rb8 Na6 Nb7 Nf4 Qg3 Qa5 Bh4 Rd1 Re1 Qc3 h1N Qe5 Nf2 Rd3 Qg1 Bg4+ Kg3 Rd2 Nd3 Rd1 Ndc5 Rd4 Bc2 Nb3 Ra8 Na1 Bcb3 Qd7 Rg8 Qc8 Kf2 Kb8 Kg3 Qc7 Rf5 Rd8 Rd5 Qe5 Kf2 Bh3 Kf3 Bg4+
4Qn2/1K1P1bq1/QNRQnp2/kq1q2R1/2q2b1b/q2P4/3pr1r1/2B1N3 b - - 0 1 illegal: No possible last move, all moves rejected
2KR4/1p1Nbn2/1bb2QB1/2q2R1b/nrn5/1Pp2B2/Q2P2B1/r1q2k1b b - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 h5 d5 h6 dxc4 Na3 gxh6 Nb1 h5 Rh3 h4 Rh2 Qd6 Rh1 Qd8 b3 a4 Nc3 a3 Bb2 axb2 Rc1 b1Q a4 Qa1 Nd5 Bf5 Ne7 Be6 Nc8 Bxc8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kf3 Kd4 g4 h5 e4 c5 g5 f5 g6 c3 e5 c4 a5 h3 e6 c2 g7 c3 e7 h2 e8B h4 a6 h3 a7 Qd5+ Ke2 f3+ Kf2 f4 Bf7 Nh6 g8B Na6 Bd3 Qc5 Bdc4 Be7 Be8 Bg4 Bge6 Nf7 Bd3 Rh4 Qe1 Bh5 Rb1 c1B Bc2 Ba3 Rd1 Qc1 Be4 Bd8 Bg6 Bb6 Bc6 Rg4 Qf1 Bb4 Ke1 f2+ Ke2 Ba3 Kf3 Bb4 Qe2 f1N Qf2+ Ne3 Rf1 Ba3 Qh4 Nc4 Qe7 Qe5 Bef5 Nc5 Qf6 Na4 Bd5 Be7 Bd7 Rc8 a8Q Rc5 Qa7 Ra5 Rf2 Nc5 B5c6 Ra1 Qa2 Na4 Bdf5 Kc5 Be6 Qc7 Ke4 f3+ Kf5 Qd6 Qg5 Kd4 Qf6+ Kd3 Bc8 Qda3 Ke6+ Re4+ Kd7 Qc5 Rf1 f2 Nf3 Ke2 Ne5 Rh4 Rhg1 h1B Rg3 h2 Rd3 Be4 Rd4 h1B Rd5 Ba7 Kc7 Rf4 Bh3 Bb6+ Kc8 Beg2 Nd7 Rh4 Rg1 f1Q Rf5 Bgf3 Rg4 Qg2 Rd4 Rf4 Ne5 Kf1 Rd8 Ncb2 Nd7 Rb4 Re8 Nc4 Rd8 Qf2 Be4 Qc5+ Kb8 Qd4 Kc8 Qf2 Bc2 Bd5 Be4 Bc6 Bf3 Qc5 Bhxg2+
nBN3B1/2Rp4/3bPN1K/1Qn1rb2/2r4n/1k1p1n1P/1q4nq/1Q2n2B b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 b5 e5 Na3 exf4 Rb1 b6 Rb4 axb4 a5 bxa5 Nb1 a4 Na3 b3 Nb1 b2 Nd2 b1R Nxb1 a3 Kd2 Ke7 e4 Ke6 c4 g5 h3 f5 e5 f3 c5 Kd5 b6 g3 c6 d3 Ke3 Kc4 e6 g4 Kf4 a2 b7 a1N c7 f2 Ne2 g2 Bd2 g1Q Ng3 Nh6 Qe2 Bd6+ Qe5 Ra5 Rh2 Qf6 Be3 Kb3 Bb6 Nc2 Na3 Na6 b8Q Ne1 Nb1 Nc5 Nh5 g3 Na3 g2 Rh1 Qh2+ Ng3 g1N Nb1 Ngf3 Bg2 f1N Ba7+ Bb7 c8B N1d2 Na3 Nc4 Nb5 Be4 Bb7 Rc8 Rf1 Nb6 Bh1 Qh8 Rf2 Qg7 Rc2 Na8 Bc6 Qh8 Qb7 Qf6 Bb8 Qg7 Na7+ Rb5 Ke3 Qh8 Qa1 Qb2 Nh5 Rc7 Qb1 Rc8 Bg2 Rc7 Nf6 f4+ Kf2 Bh7 Nc8 Nf5 Be4 N5h4 Bg6 Rc6 Bf7 Bf5 Bg8 Ra6 Ne8 Ra4 Nf6 Rc4 Qa6 Ne5 Qa5 f3 Ke3 f2 Bh1 N5f3 Rc1 Ne4 Rc2 Re5 Rc1 Rd4 Rc7 Rc4 Qa6 Nc5+ Ne4 Qg2 Kf4 f1N Qc6 Ne3 Qa6 Nd4 Nf6 Qh2+ Kg5 Ndf3+ Kh6 N3g2 Qb5+
6q1/2Q1bB2/P1P3k1/N3qnn1/n5r1/qppb2n1/1R3qQK/BN2N1n1 b - - 0 1 legal: proof: h4 a5 b4 axb4 f4 e5 h5 exf4 h6 gxh6 c3 h5 Rh3 h4 Rh2 Ne7 Rh1 Ng8 a4 bxc3 Ra2 Bb4 Rc2 Bf8 Rb2 cxb2 d4 c5 Kd2 b5 Ke1 c4 Bd2 Ra7 Be3 Rc7 Bc1 Rc5 dxc5 Ba6 Qb3 Bb7 Qd1 Bc8 Kf2 d5 e4 h5 g4 f5 Kg2 Kf7 g5 b4 a5 f3+ Kh3 c3 c6 d4 e5 f4+ e6+ Kg6 a6 b3 Be2 d3 Nd2 b1N Qe1 f2 Qf1 f3 Ne4 d2 Bc4 d1Q Kh2 h3 e7 h4 e8N Nf6 Bd3 Nh7 N8f6 Qe2 Ng8 Nd7 Ngf6 Nb6 Qe1 f1Q+ Nf2+ Bf5 Ne8 Qe5+ Bf4 Na4 Bc2 Nd2 Bb1 Be7 Nd3 f2 Nf3 Rg8 Nd6 Be4 Qe3 Qc1 Qa7 f1Q Nde1 Qa3 Nb7 Bd3 Na5 Qc8 Rg1 Qf2+ Rg2 Rg7 Qc7 Qg8 Kh1 h2 Bc2 Nf1 Bc1 Ne3 Nd2 Nf5 Nb1 Nd4 Nd2 Ne2 Bb2 Ng1 Nb1 Rf7 Ba1 Rf4 Qb6 Rg4 Bd1 Kh5 g6 Ng5 g7 Kg6 Rg3 Qfe3 Kg2 h1N Kh2 h3 Qc7 Qa7 Bf3 Qf2+ Bg2 Qec5 Re3 Ng3 Re2 Nf5 Rb2 Qb5 Kh1 Qe5 Bd5 h2 Bc4 Qf7 g8Q+ Qfg7 Qd5 Qh7 Qf3 Qg8 Qg3 Qff4 Kg2 h1N Kh2 Qfe3 Qf4 Nhg3 Qe4 Qe2+ Qg2 Qf2 Bf7+
r1k5/1bqP1Q1K/bb1pqb1n/2b1R3/B2q2Q1/R2Bn1P1/6p1/q2Q3N b - - 0 1 legal: proof: d4 c5 f4 cxd4 e4 a5 b4 axb4 e5 g5 g3 h5 Nc3 h4 Nd5 h3 Ne3 f6 f5 fxe5 Bd2 e4 Ng2 hxg2 Bf4 gxf4 Kd2 b5 c4 e5 a4 b3 h4 b2 a5 b1Q a6 e3+ Ke2 d3+ Kf3 b4 Kg4 e4 a7 f3 f6 f2 Kf5 b3 Kg6 b2 h5 e2 h6 e1B c5 d2 h7 e3+ Qc2 d1Q c6 e2 Qf5 Qa2 Qh5 b1Q+ Qf5 Bc3 Rh3 e1B Qc2 Qd4 Bb5 f1B Ba4 Bc5 Rh5 d6 Nh3 Na6 Nf2 Nh6 Re5+ Qe6 Ra3 Qa1 Nh1 Qc7 Qd1 Kd8 Qg4 Re8 h8Q Bf2 Qh7 Re7 Qf7 Bb6 Kh7 Nb4 Qd1 Bc5 Qg7 Bb7 f7 Nd5 f8Q+ Re8 Qg8 Bfa6 Q7f7 Ne3 Qgg7 Re7 Qgg4 Rb8 a8B Rd7 Qd3 Ba5 Qc2 Bab6 Qcd1 Be1 Qh5 Bc3 Qhg4 Bc8 Bb7 Ra8 Rb3 Bb2 Ra3 Qd2 Qc4 Bb5 Re4 Bf6 Ba6 Bb7 Re5 Kc8 Qcg4 Bc4 B6b5 Qdd4 Ba6 Bd5 Bf1 Bc4 Bd3 Bca6 cxd7+
1Q1RrB2/r1r2p2/3Q1Q2/1b1n1B2/1r2b2P/Np1rnb2/N2kn1P1/1Kb5 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 d5 d4 c5 f5 cxd4 f6 d3 Nh3 d4 Nc3 Qd5 Ng1 gxf6 Nb1 f5 Be3 f4 Bd2 Bd7 Bc1 Bc8 Qh5 h6 Qg5 hxg5 exd5 Rh5 a4 Rh6 Ra3 Rh4 Rc3 f3 Rc6 Rh6 Rf6 Rh8 Rf4 gxf4 Kd2 Kd7 c4 Kd6 h4 Ke5 a5 Ke4 d6 e5 a6 b5 a7 f2 d7 f3 d8Q b3 c5 b4 c6 b2 c7 Ne7 Kd1 d2 Kc2 Ke3 Ba6 f1B Qd7 d3+ Kb3 f2 Ka2 e4 Qb5 Bb7 c8Q Nbc6 Rh2 Nd5 Nf3 Bh6 Qf8 Nd4 Qc6 Ne2 Nc3 b1R Qfc8 Re8 Ba3 d1B Qd6 d2 Bb2 b3+ Ka3 Rc1 Na2 Rc7 Bg7 Bc2 Kb2 d1R Qb8 Rd3 Ne5 Kd2 Bb5 e3 Bd7 Bc6 Qb6 Reb8 Qa6 Rb4 Rh1 Re8 a8Q Ra7 Qg6 Re7 Bg4 Rec7 Qd6 Rdd4 Rh3 Nc1 Qe6 Nf6 Qb5 e2 Qd8 e1R Bf8 Bg7 Re3 Bf3 Qbe8 Bb5 Bh3 f1N Bf5 Rdd7 Rc3 Re3 Rc5 Ne2 Rd5+ Bcd3 Qc6 Re7 Rd7 Nd5 Qd6 Bde4 Ka1 Rd3 Kb1 Nfe3 Nc4+ Kd1 Qb8 Bb2 Rd8 Bc1 Na3 Kd2 Qf6 Re5 Qec6 Re8 Qcd6
r2R2q1/2R2p2/Pk2n1pN/3nRr1Q/1n2nB1Q/p4Kb1/P1N2b1b/3r4 b - - 0 1 legal: proof: g4 a5 f4 h5 d4 hxg4 f5 c5 b3 cxd4 f6 a4 Kd2 a3 Bh3 b6 Ke1 exf6 Bg2 f5 Bf1 f4 c4 dxc3 Bg2 b5 Be4 c2 Bd5 Ba6 Bc4 bxc4 Qd2 Bb5 Qd1 Ba4 bxa4 Ne7 a5 Ng8 Kf2 d5 e4 Kd7 h4 Kc6 e5 c3 h5 d4 e6 d3 a6 g3+ Kg2 d2 e7 g6 e8R f3+ Kf1 g2+ Kf2 Bc5+ Re3 Nf6 h6 Qg8 h7 Nd5 Ne2 g1B+ Kg3 f2 Kg4 f1N Rhh3 Bh2 Rh4 Ng3 Kf3 Nd7 Nd4+ Kb6 Re5 Nf8 Nf5 Bf2 Nh6 Ne6 Rc4 Ne4 Rc7 Bhg3 Qe2 d1R Bf4 c1N Nd2 c2 Nf1 Nd3 Ne3 c1B Nc2 N3b4 Qe1 Bce3 Qh1 Bg1 Qh4 B1h2 Rc1 Bd4 Rc8 Bdf2 Rd8 Qg7 Qh5 Re8 h8Q Qg8 Na1 Re7 Rcc8 Rc7 Nc2 Rc5 Rc7 Ne7 Rg5 Rf5 Qh4 Ned5 Rh5 Rf6 Re5 Rf5 Qh5 Qe8 Qf6 Qg8 Qfh4
5Qrb/nB5K/1Nrk3R/8/p2pRp1B/3P2n1/1PbQrB2/1qr2r1q b - - 0 1 illegal: No possible last move
1R2rQ2/p1qp1n1b/Q1n2P2/Np6/1R3N1K/Q2r4/1P1B1rb1/qkr2n2 b - - 0 1 legal: proof: c4 c5 a4 f5 e4 fxe4 h4 b5 d4 cxd4 a5 g5 a6 gxh4 c5 d3 Rh3 Bg7 Be2 Bd4 Rh1 Be3 Bg4 Bd4 Be6 Be3 Bb3 Bd4 Bc2 dxc2 Nd2 Nxa6 Ndf3 Nb8 Bd2 c1Q Bg5 Qc2 Bc1 Qb1 Nd2 Be5 Rh3 Bc7 Rh1 Bb6 cxb6 Kf7 Qc2 Kf8 Qd1 Ke8 g4 Kf7 f4 Kg6 Kf2 h5 g5 Kf5 b7 e5 g6 e3+ Kf3 h3 Kg3 h4+ Kh2 e2 g7 e1R Ne2 e4 Qc2 Rd1 Qc4 e3 Ra6 Nh6 g8Q Qc7 Rf1 Nc6 b8Q Qa1 Qc3 Bb7 Qd4 Nf7 Qgc8 Re8 Nf3 Rd3 Qh8 Ke4 Neg1 e2 Bd2 e1R Qc3 Rc1 Ne5 Rf8 f5 Re8 Kh1 h2 Kg2 h1N Nh3 Ng3 Nf4 h3+ Kh2 Rf8 Nc4 Re8 Na5 Rf8 Kg1 h2+ Kf2 h1B Qa3 Bg2 Rb6 Re8 Rh1 Nf1 Rh4 Kd4 f6 Re2+ Kg1 Rf2 Qcf8 Be4 Qbc8 Bh7 Rg4 Rb8 Kh1 Ba8 Qa6 Re8 Rb8 Nce5+ Kg1 Bg2 Rh4 Nc6 Rg4 Ne3+ Kh2 Ke4 Kg3 Nf1+ Kh4 Kd4 Bc3+ Ke3 Be5 Kd2 Bc3+ Kc2 Bd2 Kb1 Nd5 Nd6 Rb4 Nf7 Nf4
kRN2b1K/1rP2Q2/6R1/1qp1p3/n2q1Q1p/BBn2b1P/p1p3b1/6rQ b - - 0 1 illegal: No possible last move, all moves rejected
1rR3qb/q1r3r1/r3P3/1bbRnqB1/4P1N1/k1b2b1B/3Q2r1/1K2n1QR b - - 0 1 illegal: Other
2b1NK2/N2rn2Q/N4R2/1kprbbP1/3P1RQ1/4r2B/1nqb1q2/n5bq b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Ba3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 Kd7 Kf3 Kc6 Ke4 h5 Ke5 b5 e4 f5 g4 b4 a5 b3 d3 c3 a6 c2 g5 c1B a7 a2 Qd2 f3 Ne2 f4 Nbc3 h3 Qc2 f2 Nb5+ Bc5 Ng1 f3 Qc4 b2 Qc3 b1B Qc2 h2 Bh3 f1N Qe2 h4 Bg4 h3 Qc2 f2 Bf5 Nd7+ Ke6 Nd2 Kf7 f1Q e5 Nb6 e6 Na4 e7 Nb2 e8N Ne7 Qb3 Rh7+ Ng7 Qf2 Qd1 Nb3 Qc2 Bd2 Nf3 Qd6 Qd1 Qg6+ Kf8 Rb8 Rg1 h1R Ne8 h2 Rg4 Re1 Rf4 h1Q Bh3 Re3 a8Q+ Kb6 Qa3 Bd4 Qg1 c5 Nbc7 Bc2 Na6 Kb5 Rc1 a1B Ne5 Rb7 Rd1 Rd7 Rf1 Rd5 Nc6 Be5 Rf6 Bh2 Qg4 Bg1 Nab8 Qge4 Qa7 Bb1 Rf4 Qc4 Na6 Qc2 Ne5 Nc6 Qc7 Rhd7 Rf6 Ne7 Nc6 Nd1 Rf4 Be5 d4 Nb2 Rf6 Qfg2 R1f4 Na1 Qd6 Qg3 Qde6 Qf2 Qef5 Qb3 Qg6 Bf5 Qh7 Qc2 Na7+
2Q1rNr1/Knr1B2k/1n1r1q1p/2Q1bB2/PN1NP1b1/1qb1R1r1/1q6/n7 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ra3 bxa3 h6 gxh6 Rh3 h5 Rh1 h4 Kf2 f5 g4 Kf7 c4 Kg6 e4 b5 c5 d5 g5 f3 c6 h6 c7 b4 Bc4 a2 Bb2 a1B Qe1 b3 Qc1 f4 Nh3 d3 Rd1 d2 Be5 d4 Rf1 d1Q Re1 b2 Qe3 d3 Be6 d2 Bg4 Qb3 Nc3 d1R Qd3 b1Q Rh1 Bd6 Nd5 Nf6 Nb4 Rg8 Qd2 Ne8 Qe1 Q1b2+ Qd2 Kh7 Bh8 Be5 Re1 Nd6 Nd5 Qf6 Qe2 Nb7 Ng1 h3 Qc2 h2 Nb4 h1R Ne2 Rh3 Nd4 Rg3 Re3 Nd7 Be6 Nb6 Bf5+ Qg6 Bf6 Be6 Na2 Rae8 c8Q Bd7 Nb4 Rd2+ Ne2 Rd6 Q2c5 Be6 Be7 Bd7 Be6 Qf6 Bh3 Bg4 g6+ Kh8 g7+ Kh7 Kf1 f2 Nd4 Rf3 Kg2 f1N+ Kg1 Nd2 Kg2 Rgf8 g8N Rg3+ Kf2 f3 Re2 Qc4 Ke3 Nb3 Re1 Qce6 Kd3 f2+ Re3 Nd5 Kc4 f1R Kb5 Nb6 Ka6 Rc1 Ka7 Rc4 Qb5 Rc7 Qc5 Qc4 Bd8 Qd5 Ne7 Rg8 Ng6 Qd2 Rd3 Bd7 Nf5 Bac3 Nd4 Qb2 Be7 Na1 Re3 Qdb3 Be6 Bb5 Bg4 Be2 Bf5 Bg4 Nf8+
1q1rr3/3r1PK1/R2r2Q1/2q1B1bN/2RP3Q/3rk1pn/4rq1B/2nQ1r1b b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 axb4 g4 d5 g5 dxc4 Bh3 g6 Bg4 hxg4 Nc3 Qd4 Nce2 Qd6 Nd4 fxe4 f5 Qd5 f6 Qd8 Nf5 gxf5 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 c5 h4 b5 a4 g3 d4 b3 a5 c3 a6 c4 a7 c2 f7 f4+ Kd2 Kf5 Kc3 b4+ Kb2 f3 g6 e3 h5 Kf4 h6 f2 h7 e4 g7 Be7 Qd2 Nc6 Rh6 f1R Ra4 c3+ Ka1 b2+ Ka2 b1R Qe2 Na5 Rd6 b3+ Ka3 b2 Kb4 Nf6 Kc5 Re8 g8Q Nb3+ Kc6 Bb7+ Kb5 Ng4 Kc4 Nf2 h8B Nh3 Bd2 c1R Ra5 c2 Qh5 Rcd1 Bb4 c1Q+ Bc3 e2 Rc6 e1R Qgg6 Rd3 Qd1 e3 Raa6 e2 Be5+ Ke3 Rc7 Qd6 Rcc6 Qb4+ Kd5 Rad8+ Ke6 Ba8 Rc8 Bh1 a8Q Qb8 Qb7 Bh4+ Qe7 Qc2 Rc7 Nc1 Ba5 Qc3 Rc5 Qa3 Rc4 Qc5 Bc3 Rf2 Bb4 Ref1 Ba5 e1Q Ne2 Bf6 Nf4 Re2 Nh5 Bh4 Rd6 Ra1 Bb4 Ra7 Ra6 b1R Bd2+ Kf2 Bg5 Rad7 Kf6 Rb6+ Kg7 Rbd6 Be3+ Kf3 Bg1 Qf2 Bh2 Ke3 Nf4 Qa5 Qeg5 Qc5 Qg4 Be7 Nh5 Bg5 Qh4
rn2R2q/QrP1pQ1n/n1B3b1/2b5/6nq/N1rn1P1Q/KN2q1B1/3n1k2 b - - 0 1 illegal: No possible last move
nbkN1b1b/5Qq1/BQqq1rP1/2b5/2bn3q/1pK2RP1/3BQrR1/5q2 b - - 0 1 illegal: Other
R1r1B1Kb/2RR4/qNn1n3/qb4Q1/3NP1bb/4Q1qp/2P2q1n/q1r2k2 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 a5 d4 axb4 h5 cxd4 Ba3 bxa3 h6 gxh6 Nh3 h5 Ng1 h4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 d5+ Ke5 f5 g4 b5 e4 h5 a5 a2 g5 d3 a6 d2 a7 b4 g6 b3 g7 h3 Nf3 h2 Qc1 d1Q Bd3 d4 Be2 h4 Rf1 h1Q Nh2 d3 Qd2 h3 Nf3 b2 Ne1 f3 Qc1 f4 Rf2 d2 Na3 b1Q Nc4 Qbb6 Qb1 Qg1 Rg2 f2 Bh5 f1N Nd6 f3 Rf2 Qe2 Rg2 d1Q Rg3 f2 Nb5 Nc6+ Kf4 Qa6 Rf3 Nh2 Na3 Kd4 Qb5 f1B Qb3 Nge7 g8Q Bg4 Kg5 Qef2 Kf6 Nf5+ Kf7 Qda5 Qe6 Ng7 Qc8 Ne6 Qg5 Bb5 Nc4 Be7 Nb6 Qgg3 Rf6 Rb8 a8R Qb1 Qc7 Rhc8 Qcf4 Qd1 Rb1 a1B Nf3+ Kc3 Rb4 Bb2 Bg6 Qda1 Rd4 Rb7 Rd8 Rd7 Rf5 Rd1 Kg8 Rc1 Be8 Bf6 Nd4 Be7 Qh5 Bh4 Qf3+ Kd2 Rc5 Ke1 Qe3+ Kf1 Rd7 Bc3 Qhg5 Bb2 Rc7 Bc3 Rd5 Bb2 Rdd7 Bc3 Ne2 Bh8 Nd4
b2N1k2/QR2q3/4b1BB/2bp1n1n/r4q1b/3Pq2R/B1r2P1n/K2n1n1Q b - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 f5 h4 fxe4 a4 g5 b5 gxh4 Na3 c3 Nc4 a6 Nb2 axb5 a5 Kf7 Na4 bxa4 Qc2 Ke8 Qb3 Nf6 Qd1 Ng8 g4 c5 g5 e5 a6 h5 d3 e3 a7 h3 g6 e2 g7 e4 Rh2 a3 Qd2 c2 Qh6 c4 Kd2 e1N Kc3 h4 Ra2 e3 Qg5 e2 Be3 c1Q+ Rc2 a2 Bc5 a1N Rg2 h2 Bb4 h1N Qd5 h3 Rg5 h2 Qe4+ Ne7 g8Q Ng3 Rf5 h1B Qb7 Nf3 Rg5 Nh2 Qgd5 e1Q+ Kd4 c3 Bd6 Qee3+ Kc4 Nef5 Bh3 Qde7 Nf3 Ngf1 Rb2 c2 Kc3 Qf4 Rb3 Qce3 Rh5 c1B Ne5 Nc2 Nf7 Ba3 Qa6 Bc5 Kb2 Rh6 Bc7 Rc6 Nd8 d6 Rh6 Be6 Rb7 Nd7 Ba5 Rc7 Bd2 Nf6 Bg4 Bg7 Rh3 Kf8 Bh5 Rcc8 Bg6 Nh5+ Kb1 Bf6 Bc1 Bh4 Qa4 Nb4 Ka1 Na2 Qa5 Nc3 Qg2 Rab8 a8B Nd1 Qa7 Rc7 Qg1 Bhd5 Qh1 Rcc8 Rd7 Rb4 Rc7 Be4 Bd5 Ra4+ Ba2 Ba8 Rb7 d5 Bb2 Ba3 Bf6 Rc2 Bg5 Bc5 Bh6+
nRqQ1B1q/bqb1Rbn1/n2P2NB/npr4P/2r1Q1n1/8/4bQ2/1K1k4 b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 axb4 g4 d5 g5 dxc4 Bh3 g6 Bg4 hxg4 Nc3 Qd4 Nce2 Qd6 Nd4 fxe4 f5 Qd5 f6 Qd8 Nf5 gxf5 a4 Kf7 h4 Ke6 d4 Kd5 Kd2 e5 Kc2 c5 g6 b5 h5 f4 g7 f3 f7 c3 a5 Kc4 d5 b3+ Kb1 c2+ Kb2 f2 a6 f1B a7 e3 Qd2 e2 Ra2 e1Q Qg2 Kd3 Ne2 g3 Ng1 c4 Bh6 c1N Ra4 e4 Rh2 c3+ Kb1 e3 Ra2 c2+ Kb2 e2 Bg5 Ne7 g8Q Na6 Nh3 Be6 Ng1 Rc8 a8Q Rc5 Ra4 Nf5 Rf4 Kd2 Bh4 Ng7 Nf3+ Kd1 Ka1 Bd6 f8B Bf7 Ng1 Bc7 Qe4 g2 Nh3 g1B d6 Qa5+ Kb2 e1N Qc8 Ng2 Rf3 Qb6 Qcb7 Be2 Qe5 Ne3 Bf6 Ng4 Qc8 Qb7 Ka3 b2 Qe4 b1N+ Kb2 Nb3 Bg5 Na5 Nf4 Na3 Ng6 N3c4+ Ka1 Qe8 Bh6 Nb6 Qd8 Na8 Rg2 Rc4 Re3 c1Q+ Ka2 Qc3 Kb1 Rh7 Qh4 Qec8 Qf2 Rc5 Be7 Rh8 Qd8 Rc4 Rgg3 Re8 Bf8 Re5 Rgf3 Rec5 Rf6 Nf5 Re6 Qh8 Re8 Ng7 Qef4 Bd5 R3e7 Bf7 Qe4 Rc6 Qf6 Ba7 Qff5 R6c5 Qf2 Qf5 Qd7 Qe6 Rb8 Qf5 Qe8 Qfc8 Qd8
rN3k2/nKb5/QRpQ3r/1B2b1q1/n2r1nq1/1rN4P/7P/B3bbrN b - - 0 1 illegal: Other
B1B5/1bqP2R1/r2Qqk2/2b3p1/R1qNb1n1/1bQ4K/1r3BPb/3r1q1n b - - 0 1 legal: proof: f4 d5 b4 a5 c4 axb4 h4 dxc4 f5 g5 f6 exf6 Nc3 gxh4 Ne4 Bd6 Ng5 fxg5 Qc2 Be7 Qd1 Bf8 Kf2 Ke7 e4 h5 d4 b5 a4 f5 e5 c5 a5 f4 d5 h3 e6 h2 d6+ Kf6 d7 f3 Kg3 f2 e7 h4+ Kg4 h3 e8Q c3 a6 b3 a7 b4 Ra6+ Nc6 Rb6 c2 Qh5 c4 Qh4 c3 Ra6 b2 Bd2 b1B Qh5 c1Q Bf4 b3 Qf3 b2 Ra2 c2 Kg3 Nge7 Qh7 Qc7 Ne2 Bb7 Qhe4 Nf5+ Kg4 Bc5 Qd5 Rhb8 Bd6 Ne5+ Kh5 Ng4 Ra3 Ba2 Nc3 b1B Qc4 Bb3 Bd3 f1Q Ra4 Qce1 Ra5 c1B Qcf4 Qe6 Ba6 Qfc4 Nb5 B1e4 Nd4 B1a3 Re1 h1Q Qc3 h2 Ra4 Qhf1 Qfd2 Bab4 Bg3 h1R+ Bh4 Rg1 Bf2 Bd6 Re2 Bh2 Qf4 Bc5 Qd6 Bbd5 Re3 Rb4 Bc8 Bb7 Re1 Rb6 Re2 Rb8 a8B Ra6 Raa2 Nfe3 Ra4 Nd1 Be1 Ndf2 Re3 Nh1 Bf2 Qfd3 Rh3 Rd1 Rf3+ Kg7 Rf8 Qf3 Rg8+ Kf6 Rg7 Qfe2 Qd5 Qe1 Qd6 Qef1 Bh4 Ngf2 Qb6 Bbc6 Ra5 Bbc2 Ra4 Bcd5 Qd6 Rb2 Bg3 Bb7 Bh4 Ng4 Be1 Nh6 Bh4 Nf5 Kg4 Bb3 Kh3 Nh6+ Nf5+ Qd4 Bf2 Ng4 Qb4 Qd5 Nd4 Qdc4 Qc3
1N1BQ1Q1/1P3Kb1/qRqbr3/1n2qb2/1B3nr1/3b2bN/3n2pP/1B1k3n b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 e4 b5 g4 bxa4 e5 hxg4 e6 fxe6 Ra3 e5 Rg3 e4 Rb3 axb3 Ke2 Kf7 f4 Ke6 c4 Kf5 c5 g5 b5 a5 c6 d5 b6 e5 c7 a4 b7 b2 Nd2 b1N Ngf3 e3 Kd3 g3 Ng1 g4 Nh3 g2 Ng1 a3 Nc4 e4+ Kc2 e2 Kb3 e1B Nf3 g1B Nfd2 d3 Nf3 e3 Nce5 Ke4 f5 d2 f6 d4 Kc4 e2 f7 Ke3 Nh4 d3 Nd7 g3 Kd5 g2 Ke6 a2 Bb2 a1Q Bf6 Bg3 Bg7 e1Q Bb2 Ra6+ Kf5 Nc6 Kg6 Na7+ Nf6 Bg7 f8B Qd5 Bfa3 Qc6 Qc1 Bf5+ Kf7 Ne7 c8Q Rg8 Bd6 Nb5 Bda3 Nd5 Qc2 d1N Bb4 d2 Qa4 Nf2 Bd6 d1B Bb4 Bdc2 Ng6 Nf4 Bd3 Nd2 Nd7 Rb6 Qaa8 Qa6 Nb8 Bb1 Bc2 Ke2 Bf6 Bd3 Bh4 Bf5 Be4 Kd1 Qe8 Bd3 Bd8 Qe3 Bd5 Qe5 Ba2 Qc2 Bb1 Re6 Nh4 Qcc6 Nf3 Bf8 Ng5 Bd6 Nh3 Rg4 Bc3 Nde4 Be1 Nd2 Qg8 Nfe4 Qe8 Bd4 Qg8 Nf2 Rg1 Nf1 Bb4 Nh1 Bf6 Bb6 Nd7 Nc3 Qae8 Kc1 Ba2 Qeb5 Ba5 Bd4 Bfd8 Bg7 Nb8 Qbc5 Bh4 Kc2 Bhd8 Nd2 Rb1 Qe5 Rb6 Kd1 Bb1 Nb5 Bb4
4rnqB/n4bQb/1k5q/1B2pN2/P1RP4/r3B2n/rQn2qrb/4N2K b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 gxf4 c4 f5 a4 fxe4 c5 h5 g5 d6 Ra3 dxc5 Rg3 c4 Rg4 hxg4 Kf2 Kd7 Kg2 Kc6 h4 b5 d4 f3+ Kh2 b3 h5 b4 h6 e3 g6 f2 h7 c3 g7 c2 Bb5+ Kb6 Qf1 c5 Qd1 f1Q Qe1 b2 Bd3 c4 Qd2 b3 Qe2 c3 Nf3 Nc6 Qd1 e2 Bh6 e1N Qc1 Be6 Bg5 Nf6 g8Q Bf7 Bc4 Na7 Qe3 c1R Rg1 c2 Na3 b1R Be2 b2 Bc4 g3+ Kh1 g2+ Kh2 Nd7 Qe4 Ra1 Qf5 b1B Qd5 Qf2 Rf1 g1N+ Kh1 Nh3 Nb5 Ra3 Qg7 Rg8 h8B e5 Qh7 Bh6 Bd2 Bf4 Nc7 Bh2 Ne8 Rg2 Ng7 Qg8 Bb5 Nf8 Qb3 Re8 Qb2 Rd1 Bh6 c1Q Qg6+ Qc6 Be3 Qf6 Qg5 Bh7 Nf5 Qh6 Qg7 Rda1 Rg1 R1a2 Rf1 Nd3 Rc1 Nb4 Rc4 Nc2 Ne1
1N3r2/1q1rPQrb/b1Q1N1n1/1p1q3q/7n/PBbkR1n1/1b3R1q/NK6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 hxg4 d5 e5 d6 exf4 Bb2 cxd6 Bf6 d5 Bh4 d4 Bg3 fxg3 Kd2 Ke7 Kc1 Ke6 c4 Ke5 e4 g5 h4 b5 h5 f5 c5 d5 c6 d3 a3 Kd4 h6 g2 e5 f4 c7 g3 e6 b3 e7 f3 h7 b2+ Kd2 g4 Qb3 f2 Rh2 Qd7 Qa2 Nh6 Kd1 d2 Kc2 Ba6 c8N Bg7 Nh3 g1B Nf4 g2 Rh1 g3 Ng6 Rf8 h8Q Qb7 Nd6 Nf5 Nf4 Ra7 Ne8 Nh4 Bd3 f1N Ng6 Nd7 Bf5 Ne5 Nf4 Neg6 Nc3 b1B+ Kb2 d1Q Ne4 Qh5 Ne6+ Kd3+ Kc1 B1d4 Rh2 g1R Qh6 g2 N8f6 Bc3 Nd7 d4 Nb8 Bh8 Bg4 Ng3+ Bd1 Nf4 Nc7 Ke3 Qc6 d3 Qg6 Bce5 Qaf7 Nh1 Qfg8 Qa8 Nc3 d2+ Kb2 Bhf6 Qg5 Bh7 Ne6 Rd7 Qf7 Qb7 Rb1 Bd4 Qd5 Bh8 Ba4 d1Q Qc6 Bde5 Ka1 Qd5 Re1+ Kd3 Kb1 Bhf6 Ne4 Bb2 Nd2 Bfc3 Qd6 Rf1 Nb3 g1Q Rc2 Qh2 Na1 Rg1 Qc6 Rg7 Rf2 Nfg6 Bb3 Ng3 Re3+
N4nb1/p3nNn1/4qqRn/1P1q1q2/1K1bN2Q/4Pb2/rB6/1krb1QB1 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 b4 g4 Ra3 h6 Rf3 h5 g3 Ne7 Bh3 gxf3 g4 Ng8 g5 Qb6 Bf5 Qd8 Bg4 hxg4 Kd2 Ke7 h4 Kd6 c4 Ke5 h5 Ke4 c5 f5 b5 d5 e3 g3 h6 d3 Kc3 g2 g6 d2 h7 f2 c6 f1Q c7 d4+ Kc2 a3 Kb3 Kd3 g7 f3 Rh5 a2 Bb2 a1Q Rh6 f2 Nc3 f4 Nh3 g1Q Ba3 f3 Bd6 Qg4 Nb1 Qe6+ Kb4 Nd7 Qa4 d1B Ka5 Ne7 g8Q Bg7 Bc5 Nf8 Nd2 Qdd5 Qa3+ Kc2 Rg6 d3 Rg1 Bd4 Nb1 d2 Qg7 Be2 Bd6 d1B Ng5 Bc4 Bc5 Bb7 Bb4 Rc8 Nc3 Bb3 Na4 Kb1 Qf7 Qfh3 Bc3 f1N Ne4 f2 Be1 Qhf5 Kb4 Nh2 Nb6 f1N Na8 Ng3 Qa4 Ng4 Bf2 Nh5 Rg2 Ng7 Bg1 Rg8 h8B Nh6 Rg6 Qb2 Qf6 Qbf2 Qh4 Qff6 Qh3 Q2f5 Qf1 Qd8 Ng5 Bf3 Nf7 Ba2 Rg5 Qdd5 Rg6 Rb8 c8N Bc4 Ncb6 Rc8 Nd7 Rc7 Nc5 Bb3 Nd7 Rc1 Nc5 Be5 Nd6 Nh5 Qa3 Qc8 Bh2 Qd4+ Ka5 Qf7 Rg1 Rg2 Qa4 Ra2 Rg6 Qa1 Bf6 Ng7 Bg1 Bb2 Be5 Qc4 Bf6 Qd4 Be5 Bg8 Nf7 Qd5 Bd4 Qce6 Bf6 Ba3 Qh4 Qae5 Ne4 Bb2+ Kb4 Ba1 Bg5 Bb2 Bf4 Qe5f6 Bg3 Be5 Be1 Bd4 Bc3 Q6g5 Ba1 Qgf6 Bb2
q3n2K/3Rn1Q1/1b2r3/3BR2p/nR1Pb3/2N4B/brp1n1Pk/1q3qQn b - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 h5 d5 h6 dxc4 Bb2 gxh6 Ba3 h5 Bc1 h4 d3 e4 Kd2 e3+ Kc2 Bd6 Bd2 exd2 Na3 Bc5 Nb1 Bf8 e4 f5 e5 Nd7 Nc3 Ne7 Ne4 fxe4 Qg4 Rg8 Kd1 Rh8 Ke2 Nb8 Ke3 Nbc6 Qd1 Ng8 Ke2 Nb8 Ke3 Kf7 Kf4 Ke6 a4 b5 a5 h5 d4 c5 f3 c3 a6 e3 a7 b3 Rh3 c2 Ra5 c1N Rh1 h3 Be2 h2 Ke4 c4 f4 c3 Bf3 b4 Ra2 c2 Qe2 d1N Qa6+ Nc6 Nh3 b2 Qf1 b1Q Ra3 e2 Qg1 e1Q+ Re3 b3 Re2 b2 Nf2 Rb8 a8R Rh6 Ra7 Qf1 Rd7 Nce7 Re3 Ne2 f5+ Kf7 e6+ Kf6 Rb3 Kg5 Ke5 Kh4 f6 Kg3 f7 Ndc3 Rb4 Bb7 Nd1 Nf6 Bd5 Na4 Nc3 Rg6 Rb6 Ne8 Rb4 Bh6 f8Q Bd2 Qf6 Qa5 Qg7 Qa8 Bb3 Be4 Bd5 Nf5 e7 Rb7 Qf6 Bf4+ Ke6 Bc7 Kf7 Bb6 Qh8 Re6 Kg8 Qa1 Qf6 b1B Kh8 Ba2 Qh6 Qab1 Qf6 Neg7+ e8B Ne7 Qf8 Rb8 Bg6 Ne8 Bf5 Bc5 Bh3 Rb5 Rc4 Rb2 Rb4 Bb6 Qe3+ Qf3 Re1 h1N Qg7+ Kh2 Qc1 Qf1 Qd1 Nf4 Re3 Ne2 Qc1 Bd3 Re5 Bh7 Qe3 Be4 Qg1+
1NKB4/q2Q2b1/1q1QR3/p2R1rP1/k1n1nqP1/q1nb2p1/b2q4/1rN1Q3 b - - 0 1 illegal: Other
5Q2/1nP2r2/pb1rR1K1/4PN1r/2qn1BB1/1Bqkb3/bR1p4/2b1bQ1n b - - 0 1 illegal: No proof kernel
1R5q/Kbb2rrp/3b2N1/1QnP4/Q2rk1Bq/3p3N/PBb1q3/n3Bn2 b - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 h4 fxe4 d4 a5 h5 axb4 Na3 g6 Rb1 gxh5 Rb3 h4 Rd3 cxd3 Kd2 Kf7 Ke3 Kf6 f4 Kf5 d5 b5 Kd4 c5+ Ke3 e5 g3 b3 Ne2 c4 Nc3 b4 Qc2 h3 Rg1 h2 Rg2 h1Q Qd2 b2 Rf2 b1B Ncb5 c3 Rg2 b3 Nc7 c2 Ne6 b2 Qc3 Bd6 Qb4 Ra7 Qd4 Na6 Ng5 Rf7 Qc5 Qh4 Qc4 Nc5 Qb5 Ne7 Nc4 Rg8 Nh3 Rgg7 Be2 Bb7 Bd1 Qh8 g4+ Kf6 g5+ Kf5 Bd2 c1N g6 N1b3 Be1 Na1 Bf3 Bc2 Bg4+ Kf6 f5 b1R Rd2 Rb4 Rd1 Bc7 Rb1 Ra4 Nd6 Rd4 Nc8 Nc6 Rb2 Na5 Ne7 Na5b3 Qa4 Nd2 Rb5 Bc6 Rb8 Bb7 Qb5 Rg8 g7 Bd6 Ng6 Bc7 Bg3 Nf1+ Kf2 e3+ Kf3 e2 Be1 Rd8 g8Q Rdd7 Qe8 Rg7 Qa4 Rdf7 Qeb5 Bd6 Bc3 e1B Bb2 Nh2+ Ke3 e4 Ne7 Ke5 f6 Rf8 f7 Ba5 Qc6 Bac7 Qcb5 Rd8 f8B Rd7 Be2 Rf7 Ng6+ Kf5 Bh6 Rg7 Bf4 Rdf7 Bg3 Nf1+ Kf2 Kf6 Bg4 e3+ Kf3 e2 Kf2 e1Q+ Kf3 Qa5 Be1 Ng3 Ke3 Qa8 Kd2 Nf1+ Kc3 Qa7 Qbc4 Qa6 Kb4 Qc6 Qb5 Qce8 Qa4 Qe2 Kb5 Bg3 Qcb4 Bcd6 Kb6 Bc7+ Ka7 Bgd6 Nf8 Ke5 Qbb5 Ke4 Ng6
n1kN3Q/2Bnbp2/3Pq1BN/7b/4Br2/rP1nQ3/3qbp1q/1KnRr3 b - - 0 1 legal: proof: f4 g5 a4 b5 h4 bxa4 c4 gxh4 b3 d5 f5 dxc4 f6 a3 Ra2 exf6 Rb2 axb2 Qc2 f5 Qd1 f4 e4 Kd7 g4 c5 d4 h5 Kd2 a5 Kc2 c3 g5 h3 d5 h2 e5 a4 g6 c4 g7 a3 Nd2 b1R Qe1 h4 Bd3 h3 Qe2 f3 Qe4 a2 Qe2 a1Q Qe1 f2 Bf1 Qa6 Ngf3 Be7 Ne4 Nf6 g8B Qe6 Qd2 Rh4 Qd4 Ba6 Ng1 Kc8 Bd3 Rf4 Qe3 Ne8 Ng3 Nd7 Bg6 Nc7 Bd2 Re1 N1e2 Ra7 Rf1 h1B Nf5 h2 Ned4 Na8 B8h7 Bf3 Nh6 h1Q Nc6 Bh5 d6 Qh2 Rh1 Qa5 Nd8 Qad5 Rf1 Bb5 Be4 Ra3 Bhg6 Qd4 Bc1 Qd2+ Kb1 Re2 Rd1 Re1 Bb2 Ba6 Bc1 c2+ Kb2 Qd3 Bd2 c1N Ba5 Qd2+ Kb1 c3 Bb6 Bae2 Bc7 Qg4 e6 c2+ Kb2 Bf8 e7 Qe6 e8Q Be7 Bb6 Qdd5 Qh8 Nd3+ Kc3 c1N Kc2 Qa5 Kb1 Qd2 Bc7
k1nnB3/4bpnP/1Qp2BbR/1Q6/2Nn4/1nr1rqB1/K1P2Rbn/5r2 b - - 0 1 legal: proof: f4 h5 e4 a5 b4 axb4 g4 hxg4 f5 g3 e5 g2 e6 dxe6 Nc3 exf5 Nce2 f4 Ng3 fxg3 h4 Kd7 d4 Kc6 Kd2 e5 a4 g5 h5 b5 h6 Kb7 h7 e4 a5 g4 d5 e3+ Kd3 e2 d6 e1N+ Kd4 b3 Kc3 b2 Kb3 b1N d7 b4 Bc4 Be7 Qd6 Nd3 Qc5 Nd2+ Ka2 b3+ Ka3 b2 Ra2 b1B Bb3 Nf4 Bb2 Nc6 Qd6 Nh5 Nf3 g1N Ne1 g2 Nd3 g3 Nc1 Ne2 Rf1 g1R Be6 g2 Rf5 Ng7 Bc4 Ned4 Rf1 N2b3 Re1 Rf1 Re2 g1N Nd3 Ngf3 Bb5 Nh2 a6+ Kb8 Ra1 Ba2 Rf2 Qf8 d8B Bf5 Ba4 Bg6 a7+ Kb7 Bc1 Rc8 Bf4 Ka8 Nb2 Qe8 Nc4 Qd7 Nb2 Qg4 Bg3 Qf3 Rc1 Nf6 Nc4 Re8 Re1 Nd7 Re6 Nb6 Bb5 Bf6 Be7 Nd8 Qb4 Bh4 Bf6 Bg5 Rd6 Re3 Be8 Bh4 Qb5 Bg5 Bfe5 Be7 Bf6 c6 Kb2 Rc3 Rd5 Rc7 Rh5 Nc8 Rh6 Nc5 Ne3 Bd5 Nc4 Ncb3 Ka2 Rd7 Qb6 Rd6 Qb5 Re6 Qb6 Qf4 Qb5 Bg2 Qd5 Ree3 Qc5 Kb7 a8Q+ Kc7 Qa6 Kb8 Qab6+ Ka8 Qh5 Qf3 Qhb5
b3nn2/3q1P2/1nk1QP2/B1B4B/2Np1nK1/r2pbr1Q/1nn5/NR4nq b - - 0 1 illegal: Other
4r3/2bQ3q/BRn2k2/n3p1r1/3P2nB/Q1Rpnn1B/KP1r1r2/1r1b2N1 b - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 f5 h4 fxe4 d4 g5 Na3 gxh4 Nc2 b5 Nb4 bxa4 Nd3 cxd3 Kd2 Kf7 Kc3 a5 g4 c5 f4 h5 g5 e5 f5 e3 f6 h3 Rb1 e2 Nf3 e1N Be2 h4 Nd2 c4 Nb3 h2 Qc2 h3 Nc5 a3 Na4 a2 Qd1 a1R Rg1 h1R Rg3 h2 Qc2 Nc6 Bg4 Rh5 Rh3 Qe7 Bf3 Nh6 Qf2 Ng4 Be4 Rf1 Nb6 h1R Qf3 a4 Nd5 a3 Nf4 a2 Ne2 Rf2 Bf5 Rhh2 Ng1 Bb7 Bf4 Re8 Rc1 Rb1 Bg3 a1N Bh4 Nac2 Qe3 Nf3 g6+ Kg8 g7 Kf7 Bd7 Rg5 g8B+ Kg6 f7 Kf6 Qe4 Nce3 Qh7 Rd2 Be6 Rhf2 Bc8 Ba8 Ba6 Qa7 Rc2 Bd6 f8Q+ Qf7 Rg3 Bc7 Qa3 Qh5 Qd7 Qh7 Rc1 Bb7 Rg2 Bc8 Qd5 Bf5 Qd7 Bg6 Rh2 Bh5 Bf7 Na7 Kb4 c3 Kb3 c2 Be6 Nc6 Ka2 Nh6 Bh3 Nhg4 Re1 Rbd1 Re2 c1N+ Kb1 Nb3+ Ka2 Rb1 Re1 Bf7 Rc1 Bc4 Rc3 Nba5+ Rb3 Bb5 Rc3 Ba4 Rg2 Rfe2 Rf2 Bc2 Rf1 Rf2 Rc1 Bd1 Rb3 Ng2 Rcc3 N2e3 Rb6
RR1b1n1B/n5K1/3Q2Rn/k2b4/P1Qr4/Pp5N/2p2r1b/rq1Nbn1n b - - 0 1 illegal: Other
n1b2n2/Q3KBr1/nQ1r2q1/1P2k2B/p1Rb3P/b1Nr1rp1/3r4/b2N3B b - - 0 1 legal: proof: f4 b5 d4 g5 a4 bxa4 g4 c5 b4 cxd4 e4 f5 Bd2 fxe4 f5 h6 Bf4 Qa5 Ra3 Qc7 Rg3 gxf4 g5 Qb6 g6 Qd8 Rg5 hxg5 Kf2 d5 c4 Kd7 h4 Kd6 g7 e5 f6 a5 b5 d3 f7 a3 Nc3 f3 Kg3 e3 Qc1 d4 Qd2 e4 c5+ Ke5 c6 e2 c7 e1N Nh3 a2 Nb1 a1B Qe3 f2 Be2 f1R Ng1 a4 Bh5 d2 Ne2 d1R Na3 d3 Nc2 g4 Nb4 d2 Ng1 Nd3 Ne2 Nf4 Nc2 Nd5 Ncd4 Ba3 f8Q Ngf6 g8B Rh6 Qg7 Qe8 Qf8 Nb6 Qb3 e3 Qff7 Ra7 Nc2 Nh7 Nc3 e2 Ne3 e1B+ Qf2 Rd6 Bgf7 Na6 Qe6+ Kd4 Kf4 g3 Kf5 Na8 Rg1 Nf8 Kf6 Qc6 Rg2 Qe4 Rh2 Qg6+ Ke7 Rb7 Qd7 Ke5 Qc6 Ra7 Qb6 Rb7 Qg1 Rf3 Rh1 Bf2 Rh2 Re1 Ned1 Bd4 Rf2 Rd3 Rf4 Ree3 Qf2 Rf3 Rg4 Bd7 c8B Ra7 Bb7 Bc8 Ne3 d1R Rf4 Bdc5 Rc4 R1d2 Ned1 Bd4 Ke8 Rff6 Bh1 Rf4 Qg2 Rc7 Qgb7 Rff3 Q7a7 Qh6 Bfg6 Rg7 Bf7 Qg6 Ke7
1nK1bk2/2n2Rp1/1B5r/b2qr1q1/1b3Q2/1qN1p1P1/Q1NP1B2/q3B1qq b - - 0 1 illegal: No possible last move
3rNKB1/1pQpNR2/2bn1r2/1rr2PP1/nk6/1RbqQ3/1q1r4/1q3R1r b - - 0 1 illegal: Other
r1bnq1k1/5N2/r3nn1q/1rR3Q1/1Pprq1PR/2q3p1/1B1bQ3/R2K2B1 b - - 0 1 legal: proof: g4 g5 a4 h5 c4 e5 f4 b5 c5 bxa4 c6 e4 Bg2 gxf4 Nc3 h4 Bf3 exf3 Ne4 dxc6 Ng3 hxg3 Qc2 c5 Qd1 c4 e4 f5 b4 Kf7 h4 a5 d4 c5 d5 a3 h5 c3 e5 c4 h6 f2+ Ke2 f1R h7 f3+ Ke3 a2 d6 c2 Kd2 a4 d7 f2 Ke2 a3 Bg5 c1N+ Kd2 f4 Nh3 f3 Qe1 Ne2 Be3 Nd4 Qb1 Nbc6 Bg5 Ne6 Qf5+ Nf6 Ng1 Rd1+ Kc2 f1Q Qe4 f2 Rc1 a1R Be3 a2 Rh4 Qh3 Nf3 f1Q Bg1 Rd4 Qe2 Qe8 d8Q Qe1 Ng5+ Kg7 Qd5 Ncd8 Nf7 Ra5 Rd1 Rb5 Rc1 Be7 Rd1 Rf8 h8B+ Kg8 Rb1 Nh5 Qc5 Bg5 Qe7 Bd2 Qg5+ Kh7 Bg7 Kg8 Rc1 Nf6 Bh8+ Ng7 e6 Qh1 e7 Qh3 Qf2 Qe4+ Kd1 Qh2 Qe2 Qhh1 Qc5 Nge6 Qf5 Qf4 Bg7 Qh6 Qg5 Qe4 Qd3 Rb1 Qe2 Rb2 Rb1 a1Q Rc1 Qa3 Ra1 Qc3 Bh8+ Qhg6 Bg7 Ra2 Bh8 Ra6 Bg7 Qd7 e8R Qh6 Re7 Qe8 Rc7 Ra8 Nh8 Rf7 Rc5 Rfa7 Nf7 Ra6 Qf2 Rd3 Qd5 Nd7 Rh2 Qa3 Bb2 Nf6 Qe2 Rd4 Rh4 Qc3 Qg5+
4B1n1/1r2b1bn/bP5b/3pBr1q/3np3/B1PNr3/RQ2q3/K2kr1QR b - - 0 1 legal: proof: d4 b5 g4 g5 f4 gxf4 a4 bxa4 e4 f5 g5 fxe4 Nc3 c5 Nd5 cxd4 Ne3 h5 Ng4 hxg4 Kd2 Kf7 h4 Kg6 b4 Kf5 b5 e5 b6 d5 h5 a5 g6 a3 h6 e3+ Kd3 e2 g7 e1R h7 a4 Rh6 f3 Bb2 Kf4 Rh2 e4+ Kd2 a2 Kc1 Ke3 Be2 f2 Bf3 f1R Nh3 g3 Bh5 a3 Nf2 g2 Be2 g1N Nh1 d3 Rh6 Ra7 Rh3+ Nf3 Ng3 Qe8 Rh1 Ng5 Rb1 a1B Rh6 a2 Nh5 Rf5 Rg6 Ba6 Bf1 Nc6 Nf4 Rb7 Ba3 Be7 Rb2 Nd4 Rh6 Kf2 Rh1 Qh5 Bh3 Qe2 Bg4 Ke3 Bh5 Kf2 Be8 Ke3 Rb5 Bc3 Rb1 a1B Rb2 d2+ Kb1 Kf2 Qc1 d1Q Ra2 Bd2 Nd3+ Ke3 Rb2 Qh5 Ra2 Qde2 Qd1 Bc1 Qd2+ Kf3 Qc3 Ke3 Qb2 Kd2 Qb3 Bc3 Qb2 Kd1 Ka1 Nh3 Nb4 Bh6 Nd3 Ng5 Bc6 Nf6 Be8 Rg8 h8B Ngh7 Bb5 Rc8 g8Q Rf8 Qg3 Ng8 Be5 Rf3 Qh2 Re3 Be8 Rf5 Qg1 Nb5 Bg3 Bcg7 c3 Nd4 Be5
b1qr2b1/3q1nqR/1p5B/2Nr3B/3Pn3/b1kbQPR1/3Q1npQ/4Kn2 b - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 a5 e4 axb4 h4 f5 h5 fxe4 Nc3 g6 Nce2 gxh5 Ng3 h4 Rh3 hxg3 Rh4 Qd6 Rh1 Qd8 d4 Kf7 a4 Ke6 a5 Kd5 a6 h5 a7 c5 g5 e5 g6 c3 g7 b3 Qd3 b2 Nh3 b1B Qe2 c2 Ng5 h4 Rh3 e3 Qg4 b6 Nf3 c4 Bg2 e2 Bd2 c1N Rh1 h3 Bf4 c3 Ng5+ Kc4 Qf5 h2 Qf6 e4 Ra2 c2 Bh3 Nb3 Bd7 Nc6 Bd6 Nd2 Ne6 Nf1 Bc5 Ne5 Qf4 Kc3 Qh6 Nf6 g8Q Nf7 Qh3 Rh5 Bb5 Rd5 Qgg4 Qd7 Rg1 h1B Ba4 c1Q+ Bd1 Bd3 Qg6 Bb7 Ng7 Rd8 Qgg4 Ba8 Qh2 Bf3 Qf4 g2 Rh1 Bg4 Qfh6 Be6 Qe3 Qc2 Bd6 Be7 Bf4 Ba3 Bh6 Qc1 Qeh3 Qg5 Qe3 Qc8 Nf5 Qg7 Nd6 Qd7 Nb7 Qc8 Ba4 Qd7 f3 Qc8 Nc5 Qd7 Kf2 e1N Rb2 Qc8 Be8 Qd7 Rb5 Qc8 Qg5 e3+ Kg1 Ne5 Qhg3 Bh7 Qf2 e2 Rb1 Bef5 Qge3+ N1d3 Bg5 Ng3 Rh3 Bc6 a8Q Bg8 Qb8 Ba8 Rh7 Be4 Bh5 Nf7 Bh6 Bf5 Kh2 Be4 Rh1 Nf1+ Kg1 Bf5 Rh3 e1Q Qee2 Qd1 Qh2 Qa4 Rg3 Qad7 Qe8 Nf4 Qe6 Bd3 Qee3 Ne4 Qfe2 Ned2 Kf2 Nh3+ Ke1 Nf2 Qd1 Nde4 Qdd2+
2r2n2/2bP2r1/B2QPqb1/1KpR2Nn/1N1B2kp/BrQ1n3/q7/3qq1r1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 dxc4 b4 axb4 f5 h6 f6 exf6 Ba3 f5 Bc1 f4 h4 Ne7 a3 Ng8 g5 hxg5 h5 Be7 Bg2 Bc5 Bf1 Bf8 a4 Bf5 Ra3 Bd7 Rah3 Bc8 Rh4 gxh4 d4 Kd7 Kd2 Ke6 e4 b5 h6 g5 h7 f5 e5 c5 a5 c3+ Kd3 c2 a6 f3 a7 f2 Bf4 c1Q Nd2 b3 Qc2 g4 Qb1 b2 Ndf3 g3 Qc2 b1R Ne2 g2 Nfg1 b4 Kc4 b3 Nh3 g1R Bh2 f4 Kb5 b2 Qd1 Kf5 d5 f3 d6 Nf6 Nd4+ Kg4 Qb3 Bf5 e6 Nbd7 Nc6 Qd1 Qe3 Rc8 a8Q Bg6 Nd4 Rg8 h8B Nh5 Qc6 Rg7 Qc3 Qf6 Ng5 Be7 Be2 f1Q Nc2 Bd8 Bf4 Qfe1 Bc1 Bc7 Nb4 Nf8 Bd3 f2 d7 f1N Qd6 Ne3 Rh2 Ra1 Rd2 b1Q Ba3 Qa2 Bc4 Rb1 Rd5 Rb3 Bf1 Rg8 Bg7 Qff3 Bd4 Rg7 Kc6 Qf5 Ba6 Qf6 Kb5
kq1Q1N2/2bPPp1n/q1pnb3/R3rr2/Bb2n3/1N3QR1/1b5n/1K2R1r1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 hxg4 f5 d5 f6 dxc4 Bg2 exf6 Bb2 f5 Bf1 f4 Bd4 Rh4 Bf2 Rh8 Bg3 fxg3 e4 Kd7 h4 Kc6 a4 g5 d4 b5 Kd2 Kb7 Kc1 c3 a5 b3 e5 c6 h5 b2+ Kc2 b4 h6 g2 h7 b3+ Kd3 g3 e6 c2 d5 c1B d6 g4 Ne2 g1N Bg2 Nf3 Rh6 Qb6 Rf6 Nh6 Rf4 Qa6+ Kc3 Nh2 Ra2 Nd7 Nd2 b1Q Qf1 b2 Bd5 g2 Rf2 g1B Nb3 g3 Bf3 g2 Ra1 Nf5 Nf4 Nf6 Ng6 Kb8 Rc2 Bb6 Bd1 g1R Qf3 Bc7 Rg2 Be7 Rg4 Re8 h8Q Nh7 Nf8 Ra7 Bc2 Ka8 Rg3 Rb7 Qd4 Rb5 Qdd3 Nd4 Qd2 Rf5 Qg5 Nb5+ Kd3 Qb7 a6 Qa2 a7 b1N Bd1 Qaa6 Kc2 Nd2 Qg8 Ne4 Kb1 Bb2 d7 Qb8 Qg5 Bb4 Qd8 Nbd6 Ra5 Qe2 Re5 Ba6 Ra5 Bc4 Re5 Kb7 a8R Bd5 Ra5 Qa6 Qc3 Ka8 Qf3 Nf2 Re1 Nfe4 Ng6 Rh8 e7 Be6 Bc2 Rg8 Nf8 Rgg5 Na1 Re5 Ba4 Rgf5 Nb3
1rB5/n2r2br/4NP1P/1bp1bb2/qp3bRK/b2Nnr1Q/3Qk3/2R1N3 b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 axb4 g5 d5 g6 dxc4 Nf3 c3 Bb2 cxb2 Ng1 hxg6 Qb3 g5 Qd1 g4 h4 Kd7 a4 Ke6 d4 Kf5 f4 c5 Kf2 g5 Kg3 b5 d5 e5 d6 b3 h5 e3 h6 Ke4 d7 e2 a5 Ke3 f5 e1R f6 e4 a6 Rh7 a7 Ne7 Bg2 Qe8 d8N Rf1 Rh4 Bg7 Bh1 Rf3+ Kh2 g3+ Kg2 g4 Qf1 Nd5 Nd2 b1B Qc4 b2 Qc3+ Bd3 Rc1 b1R Nb7 Bf5 Nh3 Ke2 Qc2 e3 Rh5 Nc6 Nd6 Rb8 a8Q Na7 Rf1 Rd1 N6c4 b4 Nd6 Qa4 Nb7 Ba6 Rh4 Bb5 Nc4+ Rd2 Qc3 Rd4 Rc1 Rd3 Kg1 g2 Kh2 g1B+ Kg2 g3 Nd2 Rd4 Nd8 Bh2 Rg4 Rd3 Nf2 Rd4 Kh3 g2+ Kh4 g1B Qb7 Be5 Qa8 Bgh2 Ne6 Bhf4 Bg2 Rd3 Bh3 Rd4 Nb3 Rd2 Na1 Rd4 Nc2 Rd3 Qa3 Bb2 Qc3 Ba3 Ne1 Be4 Rg6 Rg3 Nc2 Kf3 Rg5 e2 Nc7 Ne3 Bc8 Rd7 Ne6 Be5 Qd5 Bf4 Qd1 Bf5 Qf1 Be5 Qh3 Bf4 Qd4 e1B Nd3 Ke2 Rg4 Bc3 Nce1 Rf3 Qc4 Bd4 Qc3 Bde5 Qd2+
3b3q/Q1B3Q1/PR2Nr2/Rrk4b/2npnb1B/4r3/1pKPp1qq/1R1n4 b - - 0 1 legal: proof: e4 f5 c4 fxe4 b4 g6 f4 a6 b5 axb5 f5 bxc4 f6 c3 g4 Nc6 Bh3 Nb8 Na3 Na6 Nb5 Nb8 Nd4 h5 Nf5 gxf5 g5 Kf7 Bg4 hxg4 Qe2 Ke8 Qf3 Rh7 Qd1 Rh8 a4 c5 h4 d5 f7+ Kd7 a5 Kc6 h5 e5 a6 b5 h6 e3 h7 g3 g6 c4 g7 c2 Ba3 c1B Qb3 b4 Kd1 e2+ Kc2 e1R Qf3 e4 Qd1 e3 Rh2 d4 Rh4 b3+ Kb1 f4 Bb2 g2 Rh6+ Kc5 Rh2 f3 Ne2 g1Q Ng3 c3 Rg2 f2 Ra2 f1N Nh5 c2+ Ka1 Qh2 Rg4 Nc6 Rf4 Bd6 f8B Ne5 Rf2 Nf6 g8R Rb8 Rg4 Ne4 Rg6 Nc4 Rfg2 Rb5 Bc3 Ba3 Rg1 Bg4 Ng7 Bh5 Be7 Rf8 h8Q Rf6 Qb1 c1Q Ba5 Qe8 Qh7 Qh8 Bc7 Qc2 Bed8 Bf4 Qh6 Bb4 Ra5 b2+ Ka2 Qc1 Kb3 Qd1+ Qc2 Qf3 Qc1 Qfg2 Kc2 Kd5 Ne6 Be7 Qg7 Kc6 Ng5 Kc5 Qb1 e2 Qa2 Ra1 Qb3 Ra3 Ne6+ Kd5 Qa4 Re3 Rh6 Nfg3 Qa3 Nh1 Rb1 Nhf2 Qb3 Kc6 Qb4 Nd1 Qc5+ Kd7 Qa7 Kc6 Bd6 Kd5 B8c7 Bd8 Be7 Rg6 Bh4 Rf6 Nc5 Rf8 Rb6 Rf6 Rb8 Kc6 Ne6 Kd5 Rb7 Kc6 Rb6+ Kd5 Nf8 Kc5 Ne6+
q2q2QR/kN2n2P/P2Qr1rp/1p1nnpb1/4R1b1/4b2Q/2K2BB1/q4r2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Ba3 d5 Bc1 d4 h4 hxg4 h5 Qb6 h6 Ra3 h7 Qa7 Nc3 Qa6 Nd5 Qa5 Ne7 Qd8 Nf5 Ra8 Nh6 gxh6 Kd2 d5 c4 Kd7 a4 Kc6 e4 Kb6 e5 f3 a5+ Ka7 c5 b5 e6 d3 e7 b3 e8Q b2 c6 b1N+ Ke3 g3 a6 g2 c7 d4+ Ke4 f2 Ra5 d2 Kd3 Be7 Be2 f1R Qb3 d1Q+ Bd2 Bg5 Qb4 Bg4 c8Q Nc3 Nf3 g1B Ra4 Ne7 Ne5 Nbc6 Qd6 Ncd5 Nc4 Qa1 Qg8 B1e3 Rg1 Ne5+ Kc2 f5 Bf3 Rb8 Be1 Rb6 Na5 Qf8 Qcc6 Qa8 Qc3 Rc6 Nb7 d3+ Kb3 d2 Re4 Rb6 Bf2 Rc6 Bg2 d1Q+ Qc2 Qdd4 Qd3 Qb6 Qc3 Qbd8 Kc2 Rb6 Qf7 Rf8 Qg8 Rf6 Qca3 Bef4 Qh3 Be3 Qb4 Rbe6 Qd6 Rb1 Rd1 Rg6 Rdd4 Re1 Rc4 Rf1 Rc8 Qb6 Qg7 Qba5 Rh8 Q5d8 Qg8
Q6n/4K2P/1b1r1p2/nb3B2/3Qn1rP/4qNrn/1R1bpN1p/1nk2B1N b - - 0 1 illegal: Other
6rr/4bq2/K2QQ2B/2B2pk1/B1pr2N1/P1n1nP2/1pq1b1n1/2b1R1bN b - - 0 1 legal: proof: c4 a5 h4 g5 b4 axb4 e4 gxh4 c5 d5 a3 dxe4 c6 b3 Qe2 Nxc6 Ra2 Nb8 Rc2 b2 Qd1 Qd4 Rc6 Qd8 Rg6 Nf6 Rg8 Nxg8 Ke2 e5 d4 Ke7 g4 Kf6 d5 h5 d6 b5 d7 c5 f3 e3 Kd3 h3 Qa4 e2 Bh6 e1B Qb4 h4 Be2 e4+ Kc2 h2 Kb3 e3 Qa5 b4 Ka4 h3 Kb5 b3 Bd3 e2 Qa6+ Nc6 Qa7 Nge7 Qa4 Qc7 d8B Nb4 Bf5 Bd2 Qa5 e1B Qa4 Nc2 Ne2 Bf2 Bd3 Ne3 Bf5 Bg1 Bg6 Bc1 Bh5 Ng2 Nbc3 b1N Ng3 b2 Nd1 Nc3+ Kc4 Ba6+ Qb5 Qc8 Bb6 Nf5 Ne3 Be7 Bg6 Qc6 Bh7 Rag8 g5+ Ke6 g6 Kf6 g7 Qc8 Nd1 Qe8 Nf2 Nfe3+ Kb3 Qd7 Qb4 Be2 Bc2 Qd2 Bd1 Kg6 Ng4 f5 Ba7 Qd7 Qd4 Qc6 Qf4 Qf6 Qd6 c4+ Kb4 Qe6 Ka5 Qf6 Qd7 Qf7 Bf4 Rh4 Bc5 Rhh8 Ba4 Rh4 Bc7 Kg5 Qd6 Rhh8 Ka6 Rh4 Ne5 Rd4 Ba5 Bf2 Rg1 h1Q Ng4 h2 Re1 Qf1 Bc7 h1R Bb8 Rh6 Nh1 Bg1 Bc7 Qf2 Bb8 Rgh8 g8Q+ Rg6 Qc8 Rgg8 Qce6 Bf1 Bc7 Qc2 Bd8 Bf6 Be7 Be2 Bf8 Be7 Bh6+
1b1qnnRr/4P2b/1r2b3/1pn1pq2/k2N1p1P/4R2Q/1QBr1Q2/2Nb3K b - - 0 1 legal: proof: d4 h5 b4 e5 g4 hxg4 f4 a5 d5 axb4 d6 cxd6 e4 Be7 Bb2 exf4 e5 Bf8 e6 Rh4 Bf6 Rh8 Be5 dxe5 Kf2 f3 h4 g5 a4 f5 c4 d5 a5 g3+ Ke1 f2+ Ke2 g4 c5 f4 a6 d4 a7 b3 c6 g2 c7 g3 Kf3 b2 Ra2 d3 Ra6 d2 Qe2 d1B Rh3 Bd6 e7 Kd7 Ra3 Kc6 Re3 Nf6 Re4 Ne8 Rh1 Nd7 Nh3 g1R Ra4 g2 Re4 Nf8 Na3 Rb8 a8Q b1B Nb5 Be6 Qa2 Kb6 Qc2 Ka5 Nd4 b5 Qb2 Ka4 Rh2 Rh1 Ng1 Rb6 Rh3 Rh2 Rg3 Bbc2 Rg8 Bd3 Re3 Bh7 Rb3 Bef5 c8Q Bb8 Qcc3 Be6 Qd3 Bc2 Qed2 Bd1+ Be2 f1N Q2e3 Bc2 Bd1 Ng3 Nge2 Ne4 Nc1 Nc5 Rc3 Bcb3 Qf5 Bc2 Qh3 Bcb3 Qee2 Bbc2 Re3 g1Q Nd3 Qg6 Nc1 Qf7 Qef1 Rd2 Qf2 Qf6 Kg2 Qf5 Kh1 Bcb3 Be2 Bc2 Bd3 Bd1 Bc2+
5nb1/R1B1p1q1/K1N3b1/P1r4k/B2qR1p1/2PRb1br/p3QQ1r/2n4n b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 b6 axb6 Be2 b5 Na3 b4 Bf1 bxa3 Ke2 Kf7 h4 Kg6 f4 d5 a5 b5 c3 a2 f5+ Kh5 f6 g5 f7 g3 Bf4 e3 Kd3+ e2 Qd2 e1B Qc1 b4 Ne2 g4 Qb2 b3 Bc7 g2 Be5 g1N Bg2 Nd7 Bf3 Bh6 f8Q Bg3 Bg7 Ngf6 Qc2 b2 Rc1 b1B Rd1 Ne4 Bg2 Be3 Qf3 Qf8 Bf6 Qg7 Bg5 Nf8 Qf2 Be6 Rh2 Rc8 Bf4 Rc5 Bc7 Bg8 Re1 Rh6 Rh3 Rh8 Nc1 Ne2 Nb3 Be5 Bh1 N4g3 Be4 Rh7 Bf5 Rh8 Bd7 Nh1 Ba4 B5f4 Nd2 Rh6 Nf3 Bg3 Ne5 Rf6 Qg1 Rf2 Nc6 Rh2 Qf1 Bg1 Qf2 Nc1+ Kd2 d3 Re4 d4 Qe2 Kh6 h5 Kg5 h6 Be3+ Kd1 d2 h7 Kg6 h8R Kg5 R3h6 Rh3 Rd6 Rh2 Rhh6 Rh3 Rhe6 Kh5 Rd7 Rh2 Red6 Rh3 Qf2 Rh2 Qd3 Rh3 Qde2 Bd3 Ree6 Bg6 Re4 Rh2 Kc2 d1Q+ Kb2 d3 Ka3 d2 Kb4 Qg1 Rd3 d1R Rd8 Rh3 Ra8 Re1 Ra7 Rf1 Qff3 Rf2 Qf4 Rfh2 Qff2 Rc4+ Kb5 Rc5+ Ka6 Qd1 Rd7 Qdd4 Rd6 Qde5 Rd2 Qd4 Rd3
bb3NbQ/2nP4/4brr1/2qrp1Bp/2rBR3/r1p1Q1R1/k3PB1K/6n1 b - - 0 1 legal: proof: g4 a5 c4 d5 b4 dxc4 h4 axb4 g5 Nf6 g6 fxg6 Bg2 Ng8 Bh3 Bg4 Bf1 Bc8 h5 Qd3 h6 Qg3 Bg2 Qf4 Bf3 Qd4 Bh5 Qd8 Nc3 gxh5 Nd5 Bd7 Nf4 Bc8 Ng6 hxg6 Kf1 Kf7 Kg2 Ke6 a4 Kd5 f4 b5 d4 e5 h7 c5 f5 c3 a5 Kc4 f6 c2 f7 Kb3 a6 g5 d5 g4 a7 g5 d6 c4 Bf4 g3 Ra5 g4 Qd4 c1R Bd2 Qe7 Rh4 Nf6 Be1 Ne4 Bc3 Be6 d7 Nf2 Qc5 Nh3 Qc6 Qc5 Nf3 Na6 Qb6 Nc7 Ba1 Ng1 Rh2 Bd6 Ra2 Rhf8 h8B c3 Kh1 Rd1 Rh3 g2+ Kh2 Rd5 Rb2+ Ka3 Nd2 b3 Qb7 b4 Rb1 b2 Rg3 b3 Ne4 Ka2 Ng5 Rac8 Rf1 b1B Rf4 b2 Nh7 Be4 Qb6 b1B Bf6 Bbd3 Bb2 Bc4 Ba3 Bf3 a8Q Bb3 Qac6 Ra8 Bb4 Ra3 Qa8 Rc8 f8B Be4 B8g7 Rf8 Bh4 Rf6 Nf8 Qf2 Ba5 Rd1 Qbc6 Nh3 Bb4 g1R+ Rg2 Ne8 Qac8 Bec4 Ne6 Bb8 Nc5 Nc7 Qb5 Ba8 Qh8 Bg8 Qd3 Bbf7 Qe4 Rd5 Ne6 Qa7 Nf8 Be6 Qd4 Rb1 Ba5 Rb4 Qe3 Rc4 Re4 Qb6 Bh6 g3+ Kh1 Qb4 Bb6 Qd6 Rg1 g2+ Kh2 Qc6 Bd4 Qc5 Rh1 g1R Bf2 Rg3 Rg1 Rgg6 Rg3 Ng1 Bg5
4N3/n1q1b1nQ/8/2bPR1Bb/QBp1q1bR/K3p3/P1rpq3/1qrB1k2 b - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 h4 fxe4 d4 a5 Nc3 axb4 Nd5 g5 Nf4 gxh4 Nd3 cxd3 Kd2 Kf7 f4 Kf6 g4 c5 d5 e5 g5+ Kf5 g6 b5 g7 h5 Nh3 b3 Kc3 d2 Kb2 e3 Ng5 b4 Ba6 e4 Qe2 h3 Ne6 h4 Qb5 Kg4 f5 Kg3 f6 Kf2 f7 h2 Rb1 e2 Qa4 e1B Ng5 e3 Ne6 h3 Qe8 Nf6 g8Q Qc7 Rg1 h1Q Nf4 h2 Ra1 Nc6 Qg5 Na7 Bc4 Nh5 Bd3 Qg2 Qe6 h1B Qgg4 Ng7 Kb1 b2 Qef5 c4 Be2 Bc5 f8B Rb8 Bd1 Bd7 Kc2 b3+ Kc3 b1Q Bb2 Rb5 Qh7 Qbe4 Nh5 Be6 Qgg6 Bg4 Qa6 Rb4 Ba3 b2 Qa4 b1Q Nf6 Rb2 Bb4 Qf1 Be7 Qe2 Ne8 Bhf3 Rg2+ Kf1 Bg5 Bh4 Rg3 Bh5 Rg4 Rg8 Rf4 Rh8 Rf5 Rf8 Re5 Bfg4 Bf4 Bhe7 Bg5 Rh8 Qb3 Rf8 Bc2 Kg2 Qa3 Qh1 Qa4 Rf1 Bb3 Rg1 Rf1 Qb1 Rf3 Rd1 Rh3 Kf1 Rh2 Qhe4 Rh4 Bb6 Bc5 Re1 Kb4 Rc1 Bd6 Bd4 Ka3 Bb6 Bb4 Bbc5 Bd1 Rbc2 Qf5+ Q4f3 Qg6 Qe4 Qh7
bK2R2q/3Pp1rB/1R4q1/bpQN4/bb2rk2/2Qp2n1/1Pr2B1R/1n3r2 b - - 0 1 legal: proof: c4 g5 d4 f5 a4 d5 h4 dxc4 e4 gxh4 a5 fxe4 Na3 Na6 Nc2 Nb4 a6 Na2 Nb4 Qd6 Nd3 cxd3 Rh3 Qxa6 Rh2 Qd6 Rh1 Qd8 Kd2 Kd7 Ke3 Kd6 Kf4 a5 g4 c5 g5 h5 g6 e3 f3 h3 g7 h2 d5 h4 Bh3 a4 Qd2 a3 Bf5 c4 Qa5 e2 Ke4 e1B f4 c3 Be3 h3 Kd4 c2 Nf3 c1R Rf1 h1R Qb5 h2 Nd2 Rc2 Bd7 Rh7 f5 Ra4+ Qc4 Nf6 g8R Rg7 Rf2 Ne4 f6 Ng3 f7 Rf1 Bf5 h1B Bh7 Nc3 Nb1 a2 Rh2 Bd7 Bf2 Rb4 Rh8 Ba4 Rg8 b5 Rh8 Nce4 Nc3 Nd2 Rc1 a1Q Rg8 Kd7 Kc5 Nb1 d6 Ba8 Nd5 Ke6 Qc3 Re4 d7 Qc8+ Kb6 Qa2 Qc6+ Ke5 Ka7 Bb4 Qc5 Qc6 Re1 Qg6 Kb8 Qb3 Re3 Qc3 Rf3 Ba5 Rf6 Qd4 Rb6 Bb4 Ne3+ Kf4 Rh8 Rg8 Qc3 Bh6+ f8Q+ Qdf6 Qd8 Rg7 Re8 Qf8 Qdc8 Qh8 Q8c5 Bg5 Qb3 Bf6 Qbc4 Bfc3 Qb3 Ba5 Qbc4 Bcb4 Nd5+ Kf5 Qc3 Kg4 Ne3+ Kf4 Nd5+
n2Q1n1R/7p/p3Nr2/pP5B/1rN3K1/1nP1pQ2/1B1rb1b1/1qbq2Qk b - - 0 1 legal: proof: h4 c5 d4 cxd4 e4 g5 a4 gxh4 b4 f5 a5 fxe4 a6 bxa6 c3 a5 Ra2 d3 Rc2 dxc2 Ke2 Kf7 f4 Kf6 g4 d5 f5 Ke5 f6 a6 g5 d4 g6 e3 Kf3 h3 g7 d3 f7 e2 Bd2 c1N Bg5 e1Q Qb3 h2 Qa2 d2 Bh6 d1R Be3 Bg4+ Kg2 Ke4 Qb3 e5 Bc5 Rd2+ Be2 Nf6 g8Q Ne8 Ba7 Nc7 Qd1 Nd7 Be3 Rb8 Nf3 Bh6 f8Q Nb3 Rf1 Na8 Nd4 h1B+ Kh2 Rb5 Qf2 Bg2 Kg3 Nf8 Na3 Rb6 Qf7 Rf6 Ne6 Qd3 Qh5 Qb1 Nc4 Rg8 b5 B4f3+ Kh2 Rg4 Qe8 Rgf4 Kg3 Bh5 Bg4 Bg5 Qe2 Qed1 Qd8 Bh6 Bh3 Bhf3 Bg4 Bg5 Bh5 Bg4 Qee1 Be2 Bc5 Rh4 Ba3 Be3 Bb2 Bh6 Na3 Bg5 Qf5+ Ke3 Rf2 Rb4 Rf4 e4 Rg4 Bh6 Rg8 Bg5 Rh8 Bh6 Qh1 Bf4+ Kh4 Kf2 Qh2 Kf1 Nc4 Kf2 Qhh3 Kg1 Qf3 Kh1 Kg4 Rd6 Qc5 Bc1 Qe3 Rd2 Qf2 e3 Qg1+
k2B4/Pp2qb2/1Qp1n3/p2n3r/K1P1rNrb/B1pR4/q1Q4q/n3BN2 b - - 0 1 illegal: No extended proof kernel
1Rq2k1K/p1r2QN1/Q1b2n1P/2pR3p/n6p/2R2PbN/r1b2q2/r1q4B b - - 0 1 illegal: No proof kernel
R2q2n1/p2b1Pr1/1k4P1/2R1p1Q1/qQpbrB1K/rnN1N3/Q3n2p/3q4 b - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 h4 gxh4 e4 f5 a5 fxe4 a6 bxa6 Bd3 a5 Bc2 a4 Bb3 axb3 d4 Kd7 g4 Kc6 f4 e5 Kf2 h5 d5+ Kb6 g5 c5 g6 b2 b5 c3 d6 h3 Kg3 c4 f5 h2 d7 e3 f6 h4+ Kh3 c2 f7 e2 Qd4+ Bc5 Bf4 c1N Nc3 b1Q Qd2 e1R Ra5 Ne2 Nd1 Qa1 Ne3 Nc6 Nf3 Qa4 Qa2 Ncd4 Kg4 Nb3 Nd4 Ra1 Rb1 h1Q Rd1 Kb7 b6 h3 Nb5 h2 Rd5 Kc6 b7 Bd4 b8Q Qd1 Qd6+ Kb7 Qb4 Kb6 Rc5 Rh7 Rc7 Rg7 Kh3 Qe8 Kh4 Qf8 d8Q Bd7 Qde7 Qd8 Qg5 Rb8 Rc8 Rb7 Qb2 Ra3 Ra8 Rc7 Qa1 Rc6 Qa2 Rf6 Bg3 Rf1 Bf4 Re1 Nc3+ Kc6 Rd5 Kc7 Nb5+ Kb6 Rc5 Nc3 Ng4 Re4 Ne3 Ne2 Nc3+
2NQ4/1P6/nb3nQp/nprb1qnP/p2Kp2k/1B4B1/1BR2R2/1q1n1r2 b - - 0 1 legal: proof: b4 d5 d4 f5 g4 fxg4 e4 dxe4 a4 c5 b5 cxd4 a5 Qd6 a6 Qd7 Nc3 bxa6 b6 Qd8 Nb5 axb5 Kd2 Kf7 f4 Kg6 c4 Kh5 h4 e5 c5 a5 c6 g5 c7 a4 b7 d3 Ke3 d2 f5 h6 f6 Na6 f7 Be6 c8Q Bd5 Ba3 Bc5+ Ke2 g3 f8B g2 Qb3 d1N Qc6 g4 Qd6 e3 Kd3 e4+ Ke2 g3 Qe5+ Qg5 Bb2 Qf5 Bd6 Rf8 Nh3 g1Q Qe6 g2 Ra2 Nf6 Rh2 Bb6 Qd3 Qh1 Ng5 g1N+ Ke1 e2 Kd2 e1N Bg3 Rc8 Nf7 Ne2 Nd6 Nd4 Rf2 Rc5 Nc8 Nc6 Qe8+ Kg4 h5 Rf8 Qd4 Qg1 Bc4 Na5 Bb3 Nf3+ Ke2 Ng5 Qg6 Nc3+ Ke3 Qb1 Qd3 Nd1+ Kd4 Kh3 Ba3 Rf7 Rac2 Kg4 Bb2 Kh3 Bb8+ Kh4 Qd2 Rf8 Bg3+ Kg4 Qc1 Qf4 Ba2 Be6 Rfe2 Ne8 Qd2 Rff5 Rh2 Nf6 Bb3 Qf1 Re2 Qh3 Qd3 Rf1 Rf2 Bg8 Bh4 Qf3 Bg3 Qf5 Qd2 Nc3 Ke3 Nd1+ Ke2 Kh3 Qd8 Bd5 Kd2 Nc3 Ke3 Nd1+ Kd4 Kg4 Be5 Kh4 Bg3+
1Nqn4/P2p1rnR/2k1p3/Rbp2n2/n3Kb1B/2pQP2B/1q1Q3r/2b1Q3 b - - 0 1 legal: proof: d4 a5 g4 b5 b4 axb4 d5 f5 d6 fxg4 c4 bxc3 Qd5 h5 Bg2 Ra6 Qf3 Rxd6 Bf1 Rd3 Nd2 Rd5 Ne4 Rd2 Qd3 h4 Ng3 hxg3 Qc2 Nc6 Qd1 Nb8 h4 g5 a4 g2 f4 b4 Kf2 e6 Ke3 g3 a5 g4 h5 Ke7 h6 Kd6 f5 Ba6 h7 Bb5 a6 Ne7 f6 Bh6+ Ke4 Kc6 f7 Rf8 h8Q Qc8 a7 Nf5 Ra2 Ng7 Ke5 Bf4+ Ke4 Rb2 Nf3 g1N Ne1 g2 Rh5 g3 Rf5 Nf3 Qb3 g1B Bd2 g2 Qh5 Nd4 Qh4 Bge3 Nc2 g1N Be1 Bc1 e3 Nge2 Rh5 Ndf5 Bh3 Kc5 Qa4 b3 Bd2 Bh6 Na1 Nd4 Ra3 Nbc6 Ra2 Nd8 Be1 Rh2 Nc2 b2 Nb4 b1Q+ Qc2 Nb3 Ra5 Qb2 Qd3 Kb6 Na6 Ne7 Qf2 c6 Qfd2 Nc5+ Kf3 Na4 Ke4 c5 Bh4 Bg5 Rh7 Kc6 Qe1 Rg8 f8Q Bh6 Qff2 Nef5 Qg2 Rf8 Qge2 Rf7 Q2d2 Bf4 Nb8+
3n2n1/2rNpBR1/r2knr2/pr1p3q/1n1BPP2/2b5/pBQN2b1/1Q4K1 b - - 0 1 legal: proof: b4 c5 c4 h5 a4 b5 g4 hxg4 d4 cxd4 c5 bxa4 Ra3 f5 Rc3 dxc3 c6 Ba6 c7 g3 c8Q Bb7 Qc4 Bc8 Qg4 fxg4 h4 a5 e4 d5 f4 Kd7 h5 g5 h6 c2 h7 a3 b5 a2 b6 g2 Kf2 g3+ Ke1 g4 b7 Ra6 Qe2 Kd6 Qd3 Qe8 Qc3 Nc6 Rh4 Nd8 Na3 Bg7 Bd2 c1N Qd3 Bc3 Qb5 Qh5 Nf3 g1R Qe2 g2 Ne5 g3 Nb1 Bh3 Nd7 Rh1 Qd3 g1R Qc2 g2 Rg4 Nd3+ Ke2 Rh2 Bc1 Nb4 Kf2 Rgh1 Bb5 g1N+ Rg2 Nf3 Nd2 Nd4 Bb2 N4e6 Be2 Rc1 b8Q+ Nc7 Qb7 Nce6 Qb5 Rhh1 Rg7 Bg2 Bd1 Rh4 Kg1 Rg4 Qf1 Rg6 Bg4 Rb1 Bf5 Rf6 Bg6 Rc1 Bf7 Be5 Qcd1 Rc7 Qc2 Bc3 Qfb1 Nh6 Rg3 Rg8 h8B Rgg6 Rg5 Ng8 Re5 Rg3 Rg5 Rd3 Rg7 Rd4 Nf3 Rdc4 Nd2 R4c5 Rh7 Rb5 Bg7 Rh6 Bd4 Rf6 Rg7
1B6/n7/R2Qp1pQ/3n2Kb/1r1q1p1r/brPpBP2/2k3p1/R1Rr2Nn b - - 0 1 legal: proof: g4 e5 b4 h5 d4 hxg4 e4 exd4 e5 c5 Bc4 a5 e6 d3 e7 axb4 Be6 dxe6 Na3 Kd7 Nb5 Ra6 Nd4 cxd4 Qf3 Ra7 Qd1 Ra8 Kd2 Kc6 e8Q+ Kd5 h4 Kc4 a4 f5 a5 b5 h5 g3 f3 f4 c3 g2 a6 b3 h6 b4 h7 b2 a7 b1R Qe7 b3 Qg5 b2 Qe7 Nc6 Ra2 Rb8 a8R Rb3 Qa3 Nge7 Qc2 Bd7 Rc8 Be8 Rb8 Bh5 Qd1 g6 Qd6 Nd5 Ra6 Na7 Qe1 Ra1 Qh4 b1R Qg5 Rb4 Qh6 R1b3 Rb5 Qb6 Rba5 Rab1 Ra1 Qc5 Kd1 d2 Ke2 d1N Be3 Nf2 Kd2 Rg8 h8B Rd1+ Ke2 Be7 Be5 Rg7 Qc6 Rg8 Bb8 Rh8 Qd6 Rh7 Nh3 Qb6 Rf1 Nh1 Ng1 Ra3 Re1 Kb3 Rf1 Kb2 Re1 Rab3 Rf1 Re1+ Kd3 Rd1+ Ke4 d3+ Ke5 Kc2 Re1 Bf8 Rb1 Ne7 Kf6 Qd4+ Kg5 Nd5 Qd7 Ra4 Qc6 Ba3 Qd6 Rab4 Ra1 Rd2 Reb1 Rd1 Qg7 Bg4 Qgf8 Rh4 Qh6 Bh5 Rc1+
2QB4/B2p1p1q/1n1p3R/2R4P/3N1Pbn/rQBr3k/pKp4n/1b1b2b1 b - - 0 1 illegal: Other
B1b2n1K/q2B1rr1/3P1ppp/p2N2p1/3b1P1q/R4QN1/1knr4/1Q1B1r2 b - - 0 1 illegal: No possible last move
3b4/1pBq1np1/P7/1Q3R1q/2B2brr/1p1bp1Rp/1P2p1NQ/nB1k2K1 b - - 0 1 legal: proof: g4 c5 h4 f5 d4 cxd4 h5 fxg4 h6 a5 e3 dxe3 Nc3 Qc7 Nd5 Qg3 Nb4 axb4 Bc4 Qf4 Ba6 Qxh6 Bf1 Qh2 a4 Kf7 f4 Ke6 c4 Kf5 a5 Ke4 f5 e5 c5 h5 f6 d5 f7 e2 c6 d4 c7 g3 Bh3 g2 Kf2 h4 Be6 d3 Qa4 d2 Qe8 Kd3 Bc4+ Kc2 Qe6 d1Q Qf6 b3 Bd5 e4 Qe5 Na6 Bc6 Nb4 Qb5 Be7 f8Q Bd8 Qd6 Bf5 c8B Nh6 Nf3 Nf7 Bf4 h3 Ra3 Rh4 Rg1 Qh1 Qb8 Qd7 Ne1+ Kd1 Bd5 Nc2 Bc4 Na1 Bc7 Qh2 Ra2 Qe5 a6 Rg4 Ra5 Bh7 Bb6 Qh5 Qh2 Rb8 Bc7 Bg6 Rf1 e3+ Kg1 Bh7 Rf3 Bd3 Qb4 Ra8 Raf5 Rb8 Qb5 Ra8 Qf4 Rb8 Rg3 Ra8 Kh2 g1B+ Kh1 Bh2 Ng2 Qd6 B8e6 Qd7 Bed5 Rc8 Be4 Rh4 Rgg5 Bg3 Kg1 Rg4 Qf2 Bf4 Qg3 Ra8 Qh2 Rc8 Bd6 Rc6 Bc7 Rh4 Rg4 Rg6 Rg3 Rgg4 Bcd5 Bc4 Bb1 Bd3 Bc4
KR6/p1p1kn2/Qb2q3/bpBBn3/4Bp1p/3P3P/b1NRpr2/1b3Q1r b - - 0 1 legal: proof: b4 g5 f4 gxf4 a4 d5 e4 dxe4 c4 Qd5 b5 Qxc4 a5 Qc2 a6 Kd7 Nc3 bxa6 b6 Ke8 Nb5 axb5 Ke2 h5 g4 e5 g5 f5 b7 f3+ Ke3 f2 g6 Nh6 g7 Be6 g8B Ke7 Bh7 Qc4 Ne2 Nc6 b8Q Nf7 Bg2 f1B Nd4 Bd3 Qf1 Bb1 d3 Bg7 Qb6 Raf8 Nc2 Bd5 Ke2 e3 Qa6 e4 Ra2 Bd4 Ba3+ Bc5 Rg1 Nce5 Bf3 Be6 Rg8 Qd5 Bb4 Qd6 Rb2 Bb6 Bc5 Bea2 Bg2 f4 Bf5 Re8 Be6 Rh6 Bd5 Rh7 Rh8 Rg8 Bh1 Rg6 Rb8 Rg2+ Kd1 e2+ Kd2 e3+ Kc3 e1B+ Kd4 Rf2 Be4 e2 h3 h4 Na1 Rg7 Rd2 Kf6 Nc2 Qe6 Bc4 Rg1 Bb3 Qc8 Kd5 Rh1 Bc4 Nf3 Kc6 Qe6+ Kb7 N3e5 Be3 Ke7 Ka8 Kd7 Bcd5 Ke7 Rd1 Bc3 Rd2 Bca5 Bc5+
1n1KB3/r3rR1N/N6k/Pr1b4/2q1B1Pr/qq6/b5n1/1rBRnNn1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Nd2 d5 Nb1 d4 a4 gxh4 c3 b5 Qc2 b3 Qa2 b4 Qa3 bxa3 Bb2 Bb4 cxb4 Nf6 Bc1 Ng8 Kf2 Kf8 Kf3 Kg7 Kg4 h5+ Kf5 d5+ Ke5 f5 g4 b2 e4 a2 b5 f3 a5 f2 b6 d3 b7 d4 Nh3 f4 Bd2 f3 Bc3 d2 Bb4 d1N Bb5 f1Q Be8 f2 Ng1 d3 Be1 h3 Bb4 d2 Bf7 h2 Be7 h4 Bg6 h3 Na3 b1R Nc2 Qdd3 Bh5 Kh6 Bh4 Ne7 Kf6 Rb5 e5 Nf5 e6 Ng3 Ke7 Ne3 Rc1 d1Q Bg6 a1N Bf6 Ne2 Bf7 Rh7 Na3 Ra7 Nb1 Q1b3 Rc7 Ng2 Bb2 Nc2 Nd2 Nce1 Ngf3 Ng1 Ng5 Qdc3 Ke8 Qfc4 e7 f1R Kd8 Be6 e8B Qg3 Bg6 Re7 Rd7 Qd6 Bh7 Qda3 Bc1 Nef3 Rd3 Bf5 Bg8 Ne2 Bd5 Nd7 Rc3 Bb1 Rd3 Ba2 Bb2 Rb1 b8N Nfe1 Na6 Nb8 Rf1 Ng1 Bdc6 h1B Bb7 h2 Bc1 Nf4 Nh7 Be4 Rff3 h1R Nf1 Rh4 Rd2 Nfg2 Rf7 Bf5 Ba8 Be6 Be4 Bd5 Rd1+
nnr5/2b1KNpB/R4Pp1/4Pb2/qnp3rN/RN2B1kb/2q5/2bB4 b - - 0 1 legal: proof: c4 c5 g4 b5 a4 d5 g5 Bh3 g6 hxg6 axb5 Bc8 b4 cxb4 c5 Qd6 Qc2 Qb6 Qd1 Qd8 d4 e5 Qb3 f6 Qc4 dxc4 e4 exd4 e5 f5 Ra2 Rh6 Re2 Rh8 Re4 fxe4 Kd2 Ke7 h4 Ke6 f4 Kf5 c6 Kg4 c7 a5 b6 d3 Ke3 d2 f5 d1Q h5 a4 h6 a3 f6 a2 h7 a1B b7 b3 Bd2 b2 Nh3 Qe8 Kd4 e3 Kd5 e2 Ng1 e1N Nf3 Qea4 Be2 Qdc2 Be3 Bd6 Nh4+ Kg3 Nd2 b1B Nb3 Nd3 Bd1 Bh3 c8B Bb2 Be6 Bc1 Rf1 Bc7 Rf3+ Kh2 Bf7 Nb4+ Kc5 Ne7 Bg8 Nc8 Rg3 N8c6 b8R Nb6 Rb7 Re8 Ra7 Rc8 Ra6 Na8 Rf3 Nb8 Rg3 Bd8+ Kd6 Bb6 Ke7 Bc7 Bf7 Rhd8 h8N Rd4 Bg8 Rg4 Nf7 Na2 Rf3 Nb4 Rf1 Kg3 Bh7 Qh2 Rf2 Bf5 Ra2 Qc2 Ra3
KN1nr3/4bn2/3Nb1R1/1qqPb2P/nk3B2/1pbqnb2/3r3R/N4B1R b - - 0 1 legal: proof: g4 e5 c4 h5 b4 hxg4 f4 exf4 b5 d5 b6 dxc4 Nh3 f3 Qc2 g3 Ng1 axb6 Qf5 b5 Qh3 b4 Qg2 fxg2 d4 Ke7 Kd2 Kd6 Ke3 f5 a4 c5 h4 b5 a5 g5 a6 b3 h5 c3 a7 b4 Nf3 g1Q+ Kd3 g4 Kc4 f4 Kb5 c2 e4 g2 Ne1 g3 Bb2 c1Q Be2 f3 Rh3 c4 Rh1 c3 Ba3 f2 Bg4 f1N Rh3 b2 Nf3 c2 Rh4 Be6 Nc3 b1B Bf5 Ne3 Bh7 Qb2 Bg6 c1N Rh1 Nd3 Na4 Nh6 Nb6 Nc5 Rh3 Nc6 Nd7 Na4 Ka6 Nf7 Kb7 Be7 Ne1 Re8 e5+ Kd5 Bf5 Kc4 Rh2 Be4 Bh3 Bf3 Nb8 b3 Rb1 Qe2 Bc1 Kb4 d5 Qd3 Ra1 Qa5 Rb1 Qf2 Ra1 g1B Bf1 g2 Nc2+ Kc4 Rb1 Kc5 Na1 Kb4 Bb2 Qfc2 Bc1 Bf2 Bd2+ Qcc3 Rc1 g1B Re1 Bg3 Rb1 Nd1 Bf4 Ne3 Rd1 Qcc5 Re1 Bh3 e6 B1f2 Rb1 Be1 Rc1 Bc3 Rd1 Bef6 e7 Be6 Rc1 Bgh4 Re1 Bfe5 Rd1 Rh8 e8N Be7 Nd6 Rd8 Rdd2 Re8 Rh1 Bb2 Rdh2 Bbc3 Nd7 Rac8 Nb8 Ncd8+ Ka8 Qab5 Be2 Qcc4 Bf1 Be1 Ne4 Bd2 Rg2 Qcd4 Nd6 Rc2 Rg6 Qdc5 Nc4 Nc6 Nd6 Nb6+ Kb7 Bdc3 a8R Ra2 Ra3 Na4+ Ka8 Rb2 Ra2 Rh2 Rag2 Ncd8 R2g5 Re2 Rg2 Rd2 Rgh2
1Bn4b/P2n4/Kp1q2p1/N1qB4/5pBP/R3qbr1/1rbqkN2/3RR1q1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Qd3 h4 Bc1 g2 Qg3 hxg3 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 Kg4 c4 d5 e4 f5 a4 g6 h4 f4 a5 d3 e5 d4 e6 b3 e7 b2 e8R d2 c5 d1B c6 d3 c7 d2 a6 Bf3 Rh3 d1Q Be3 Q8d2 Nc3 b1Q+ Ka5 Bg7 Bd4 Nd7 Ba7 Qbb3 Bb8 Ne7 Ne2 g1Q Rd8 g2 Nc1 Qc5+ Bb5 g1Q a7 Re8 Rh1 Bh8 Ra3 Qdd6 Ne4 Qbe3 Nb3 Q1d2+ Ka4 b6 Bc6 Ba6 c8B Bd3 B6b7 Bc2 Nf2+ Kg3 Be4 Kg2 Bd5 Kf1 Bc6 Ke2 Bd5 Qg4 Rf1 Qg1 Bcb7 Nc8 Bbc6 Qcc3 Kb5 Qcc5+ Ka6 Re4 Na5 Rb4 Be6 Rb1 Bcd5 Rb2 Bc7 Rb8 Bg4 Rb7 Bb8 Rc7 Raa1 Qca3 Rad1 Rc3 Re8 Qab4 Re4 Qbc5 Ra4 Rc4 Ra3 Re4 Rc3 Re5 Ra3 Rg5 Bh5 Rg2 Bg4 Rg3 Rfe1+
R1Nn2q1/r1R2P1b/7K/Q1R1q1r1/Rb4NB/bp2Pqb1/4b2k/2n4r b - - 0 1 legal: proof: h4 a5 b4 axb4 c4 d5 cxd5 g5 a3 gxh4 d4 bxa3 Rh2 f5 Rh3 e5 Rh1 exd4 e3 f4 Be2 f3 Kd2 fxe2 g4 Kf7 f4 Kg6 d6 e1B+ Ke2 b5 Kf3 h5 f5+ Kg5 f6 c5 d7 c4 f7 d3 Bd2 a2 Ne2 b4 Nbc3 h3 Qb1 Kh4 Kf4 h2 g5 Kh3 g6 h4 g7 b3 Nd1 c3 Qc1 c2 Bc3 d2 Bb4 Rh5 Nec3 Bg3+ Ke4 Nc6 Qb2 c1B Rg1 h1Q+ Rg2 Nf6+ Kf3 Ra7 g8R Ne4 Nb5 Nc5 Ba5 Nd3 Rg5 Bb4 Qc3 Qg8 d8R Bf5 Nd6 Bh7 Ra8 Nd8 Rc5 Bca3 Nc8 Rg5 Rc1 a1Q Rc2 Nc6 Bd8 Nc1 Be7 Nd8 Ra2 Bb2 Ra4 B2a3 Rc7 Qb2 Qc5 Qe5 Qa5 Qe1 Re2 Qf1+ Nf2+ Kh2 Bf6 h3 Re1 Rg4 Bh4 d1B+ Re2 Rg5 Rc5 Bdc2 Rd2 Bcd3 Rdc2 Kg1 Rc7 h2 R2c5 Qh3 Ng4 h1R Rb7 Bc4 Rbc7 Qf1+ Nf2 Rg7 Rd7 Kh2 Rdc7 Bg6 Kg4 Bh7+ Bg5 Ba6 Kh5 Be2+ Kh6 Qg2 Bf6 Qf3 Bh4 Rg5 Ng4+
1n1k3r/1BBbr1Nq/3pn2N/8/PQ4qq/2prq1Nr/2K2bPR/3N4 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 b4 e5 c4 exf4 h4 gxh4 Ra2 a5 Rc2 axb4 Rc3 bxc3 e4 b5 c5 h5 c6 f5 e5 h3 e6 h4 c7 d3 e7 f3 Ba3 h2 Bc1 d2+ Kf2 h3 Ke3 b4 Kd3 b3 Bb2 f2 Ba3 f4 Bb2 f3 Qe1 d1Q+ Nd2 Nh6 Ne2 Nf5 Rg1 h1Q Ba1 h2 Ng3 b2 Nh5 Ng7 Qe3 Ne6 Qd4 Ra7 Qb4 b1R Be2 f1R Bb2 f2 Bf3 d6 Ba3 Bh6 Bd5 Be3 Ng3 Qg4 Nc4 Rfd1+ Kc2 f1Q Bb7 Qe1 Nb2 Rd3 Nd1 Bd7 c8N Qc7 Rf1 Ra1 Rf5 Bd4 Rh5 Qe3 Rh7 Qhe1 Rh6 h1Q Rh2 Kf7 e8N Rh3 Nf1 Qeh4 Ne7 Bb6 Ng8 Ra8 Nb2 Re1 Nh6+ Ke7 Ng3 Kd8 Ng7 Rf1 Ng8 Rf7 Nd1 Re7 Nh6 Ra5 Qb5 Qed4 Bb4 Qhg5 Nhf5 Rh8 N7h5 Qe5 Rh3 Bf2 Nhg7 Qee3 Qc4 Qg6 Nh6 Rh5 Ba5 Qh7 Qb4 Qh2 N3f5 Qhg3 Rh1 Rh3 Rh2 Q3h4 Ng3 Be8 Bb6 Bb5 Ba5 Bd7 Bxc7+
Bq1R1b1N/3Bpb2/1nrP1b2/B1P2q2/1B1n1pn1/3kRb1K/3pr3/4Q3 b - - 0 1 legal: proof: e4 g5 h4 gxh4 d4 b5 a4 d5 f4 dxe4 b4 c5 d5 a5 axb5 axb4 f5 Ra3 Nd2 Rf3 Nb3 Rxf5 Nd4 cxd4 Nh3 Rf3 Ng1 Rf2 g4 Kd7 c4 Kd6 b6 Kc5 g5 f5 g6 h5 d6 f4 b7 d3 g7 Kd4 c5 e3 Ra3 h3 Ra1 h2 Bh3 b3 Ra5 h4 Bd2 b2 Be6 b1Q Ra7 h3 Ba5 e2 Ra8 Nh6 g8B Ng4 Bb3 Nd7 b8B Nb6 Bgd5 Be6 Bdc4 Bf7 Bc7 Qb8 Nf3+ Ke3 Rf1 h1B Ng5 h2 Be6 Bf3 Bb4 h1N Bbd5 Ng3 Bd7 Nf5 Rg1 Nd4 Rg3 Bh6 Rh3 Rc8 Bd8 Bf8 B5c6 Nd5 Bda5 Nb6 Bd5 Rc6 Rg3 Qb7 Rd8 Qb8 Be4 Qa2 Qa1 Qe6 Qc3 Qf5 Rh3 Bh5 Nf7 Bg6 Nh8 Bf7 Bd5 Rh2 Bc4 Ke4 Ba6 Ke3 Bb7 Rf2 Ba8 Ke4 Kd2 e1B+ Kc1 Ne2+ Kd1 d2 Qb2 Bh1 Qc1 Nd4 Rb3 Rh2 Rd3 Bh4 Re3+ Kd5 Qa1 Kc4 Qb1 Bf6 Qa1 Nf3 Qb1 Bg2 Ke2 Bh1+ Kf1 Re2 Qd1 Nd4 Qe1 Bf3 Kg1 Nf2 Kh2 Ng4+ Kh3 Nd5 Re5 Nb6 Re6 Kd3 Re3+
2Bn2N1/K1nqrb1b/R1rB2n1/1r2P2B/2k4b/Q3r3/n1PRq3/1q2B2n b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 fxg3 Bb2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Ba3 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Kd6 Kc4 g5 Kb5 Kd5 a4 f5 h4 b3 h5 f4 e3 d3 h6 d2 h7 b2 a5 b1N a6 f3 a7 g4 Bb2 f2 Qe1 d1Q Bg7 Be7 Rh6 Nf6 Qc3 Ne8 Qb2 Nc6 Bd3 f1B Ne2 g1Q Bf8 g2 Bf5 g3 Qc1 Nc7+ Kb6 Nc3 Nf4+ Kc4 Qa3 d5 Rh4 d4 e4 Be6 e5 Bd3 Bg7 Re8 h8B Bf7 Bh7 Qd7 Bg6 Nd8 Rh1 Qe2 Bh5 Bh7 Nh3 d3+ Nf2 d2 Rf1 d1N Ka5 b5 Kb6 b4 Qa1 b3 Bg6 b2 Rh6 b1R+ Qb2 Na2 Bh5 Qh1 Re6 g1N Bf8 g2 Bf6 Nf3 Ne4 g1R Bh4 Rg3 Nf6 Nf2 Rd1 Qhe1 Rd5 Nh1 Ng8 Bf6 Bb4 Re7 Qa3 Rh3 Bg3 Nh4 Rd2 Ng6 Red6 Qc1 Be1 Bh4 Re6 Re3 Red6 Rc8 a8B Rb8+ Ka7 Rb6 Bb7 Rb2 Bc5 R2b5 Bc8 Qb1 Bb4 Rc6 Re6 Rcc5 Ra6 Rc6 Bd6
4bB2/2b1N2K/1rqPqr2/2p2nBP/B1nR4/n2q1r1Q/N5kr/B3r1n1 b - - 0 1 legal: proof: g4 f5 e4 fxe4 c4 h5 b4 hxg4 a4 b5 c5 bxa4 c6 dxc6 Ra2 c5 Rb2 c4 Rb3 axb3 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 h4 g5+ Ke5 a5 d4 e3 f4 c3 b5 a4 b6 b2 b7 e2 f5 e1Q+ Be3 a3 d5 c2 f6 c1Q f7 a2 Na3 a1R Qb3 b1N Nb5 g3 Bh3 g2 Nd4 g4 Nde2 g3 Kf4 e5+ Ke4 R8a6 Be6 Bd6 Kf5 e4 f8B Bd7 Be7 Be8 Bh6 e3 Qb4 R1a3 Bhf8 Nc6 b8B Na5 Qb3 Rb6 Qa2 Qc6 Qc4 Nh6+ Kf6 Nf5 Nf4+ Kg4 Nge2 Kf3 Nc1 g1R Na2 e2 Bd7 g2 Ng6 Rf1 Rh3+ Kf2 Rd3 g1N Rd4 Kg2 Ba7 Rff3 h5 Rh6 Qa4 Nc4 Kg5 Rh3 Bf6 Bg3 Ne7 Rh2 Bb8 Rf3 Qb4 Qb7 Ba4 c5 Bf4 Nba3 Bd2 Bc7 d6 Qe4 Bc3 Qda8 Ba1 Qd1 Qe1 Qe6 Qh4 e1R Nb4 Rh7 Na2 Rf7 Kg6 Qd3 Nc3 Qe5 Na2 Qc6 Bg5 Rf6+ Kh7 Qe6 Qh3+
n1B4n/Kbb1r2q/1p2b3/R1BQ1nq1/5P2/Rq4Pb/1Bk5/1qNB2br b - - 0 1 legal: proof: d4 c5 f4 cxd4 e4 f5 b4 fxe4 b5 g5 b6 h5 g3 g4 Nh3 h4 Ng1 h3 Qd2 axb6 Qg2 hxg2 Nd2 b5 Ndf3 gxf3 Bd2 b4 Be3 Bg7 Bc1 Bf8 Kf2 Kf7 a4 Ke6 c4 Kf5 h4 d5 a5 e5 h5 e3+ Ke1 Ke4 a6 d3 h6 d4 a7 f2+ Kd1 b6 c5 b3 c6 b2 h7 b1B c7 e2+ Kd2 Be6 c8Q Bd6 Qc5 Nh6 Qa3 Bc7 Qd6 Qg5 Ra5 Na6 Qa3 Rae8 Qa4 Nf7 Ba3 Re7 Qd1 e1Q+ Kc1 d2+ Kb2 d3 Qg4 d1Q Rh2 d2 Qh4 Qb3+ Ka1 d1N Bb2 Ne3 Qh5 Nf5 Ne2 Kd3 a8B g1B Nc1+ Kc2 Be2 f1B Bb7 e4 Bc8 e3 Rh1 Bh3 Bd1+ Kd2 Ba3 e2 Bc5 Be4 Qf3 Bb7 Qd5+ Kc3 Rh2 Qf1 Ra3 e1Q Rha2 Qff2 Ra5 Qh2 R2a3 Rg8 h8B+ Rg7 Be2 Kc2 Bg4 Rh7 Bb2 Nh8 Bf3 Qbe3 Ka2 Qh1 Rd3 Rh4 Ka3 Qh2 Ka4 Qf1 Na2 Qb1 Kb5 Qh1 Bh5 Qhe4 Rda3 Qb3+ Bb4 Ng7 Bg4 Qh7 Nc1 Nf5 Be2 Bg2 Bf3 Rh1 Be2 Bh3 Bg4 Qc3 Bc5 Bd6 Bf3 Nc7+ Ka4 Na8 Kb5 Bc7 Bh5 Bc6+ Ka6 Qb3 Ka7 Bb7 Bd1+
1rn2q1r/BbK2P2/k1bBrb1R/1R1r2Q1/1nqP3b/8/1q3Np1/3B2bB b - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 g4 f5 g5 fxe4 Na3 bxa3 g6 hxg6 Bh3 g5 Bf1 g4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Ke5 g5 f4 c5 d4 e3 h4 a2 a5+ Ka6 h5 b5 f5 g3 f6 e2 h6 e1R+ Be2 b4 f7 b3 h7 g4 Rh6+ Nc6+ Ke4 e5 Qd2 g2 Qc2 b2 Rb1 a1R Rh3 g3 Rh6 Bb7 Nh3 g1B Qd3 Ne7 Qc3 Rb8 Bg5 Nc8 Qc2 Be7 Rg6 Bf6 Qd1 Nb4+ Kf5 e4 Ke6 e3 Rg8 Qf8 Bf3 e2 Kd7 c3 Nf2 c4 Qd2 c2 Kc7 c1Q Rg6 c3 Bf4 c2 Rh6 Bc6 Bh1 g2 Bd6 Ra2 Qg5 Ra4 Ra1 b1B Ra2 Qd2 Rb2 c1Q Bc5 Qd3 Ba7 Qdc4 Rb3 Bbe4 Rb2 Rg8 h8B Ra3 Bg7 Rh8 Rb1 Rf3 Rb2 Rf5 Rb3 Qg8 Bf8 Rd5 Bd6 Qf8 Rb1 Kb5 a6 Qb2 Bb6 Bf3 a7 Ka6 a8B Rd1 Bdc5 e1B Ba7 Rd2 Bd6 Re2 Nh3 Bh4 Nf2 Re6 Bb7+ Ka5 Ba6 Be4 Bb5 Bf3 Ba4 Ka6 Bd1 Rde5 Be7 Bb7+ Bec5 Bfc6 Bd6 Rd5 Rc1 Qb5 Rc5 Qc4 Rb5
1bK4Q/B1b1bb1r/3NPp1r/3q2r1/2P1R2r/7r/1r1R1Nk1/3nRnRb b - - 0 1 illegal: No possible last move
7K/4PP1b/b3nn1N/b3N3/N1n1q2R/b1r3k1/1npbnn2/2QBr1NB b - - 0 1 legal: proof: e4 a5 c4 d5 h4 g5 d4 gxh4 a4 e5 b4 axb4 Bb2 dxc4 d5 f6 Bd4 Ra6 Ra2 Ra7 Re2 exd4 e5 Ra5 e6 Ra8 Re5 fxe5 Kd2 Ke7 f4 Kd6 g4 c5 a5 b5 a6 h5 g5 h3 a7 h2 g6 c3+ Kd3 c4+ Ke4 h4 Kf5 e4 g7 h3 Kg6 d3 f5 Ke5 f6 Kf4 f7 e3 d6 d2 d7 c2 Qc1 d1N Nd2 c3 Nb1 b3 Qa3 c1B Qe7 e2 Qa3 e1B Qa4+ b4 Na3 b2 Qc2 b1N Qe4+ Kg3 Qd5 b3 Nb5 b2 Bg2 Ba3 e7 Nf6 g8B Ba6 Kg7 Nc6 Bf3 Bcd2 Qe4 Rc8 a8N Nd4 Na7 Ne6+ Kg6 c2 Qb7 Nbc3 Nb6 b1N Na4 Nb2 Nc6 Ne2 Ne5 Rc3 Ng4 Qa8 d8N Rh4 Nh6 Re4 Qb5 Ree3 Bh7 Qe4+ Qf5 Bc1 Bg2 Nd2 Bf3 Ndc4 Nc6 Bcd2 Ne5 Rcd3 Nd7 Ba5 Ne5 Bed2 Bg4 Rc3 Bh5 N2d4 Bd1 Re1 Nd7 Ne2 Ne5 Ng5 Kg7 Ne6+ Kh8 Rb3 Ngf3 Rc3 Rf1 h1N Ng1 h2 Rf4 Nf2 Rh4 h1B Qg5+ Qg4 Bf5 Be4 Qe3+ Qf3 Bh3 Bh7 Bg2 Ng7 Bh1 Ne6 Qc5 Qe4 Qd5 Be3 Qd2 Bf4 Qc1 Be3 Nd3 Bd2 Ne5
b6n/P4r2/q1P5/1nK1n2B/bn1NN1pk/N2b1N2/1r2Bbqq/r2QR3 b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 e5 a4 exf4 Na3 c5 Nb1 cxd4 Ra3 h6 Rg3 f3 Bf4 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 Kf2 Ke7 h4 Kf6 c4 d5 e4 b5 a5 b3 c5 g4 a6 d3 g7 d4 h5 Kg5 h6 f5 h7 b2 e5 b4 c6 d2 e6 d3 e7 b3 e8N Bb7 Rh4 Nh6 g8B Qd6 Ng7 Nf7 Be2 Nd7 Qf1 d1B Nd2 b1B Qe1 b2 Rh2 Ba4 Rh1 Nde5 Nf1 d2 Ne8 Bd3 Nc7 b1R Ne3 d1N+ Kf1 f2 Ned5 Rb2 Qa5 Nc3 Kg2 f1N Kf2 f3 Nb5 f4 Nb4 Ne3 Nc2 Ned5 Rh2 Nb4 Nbd4 Nb5 Rg2 Kh4 Na3 Qh6 Qc7 Bc5 Qd6 Ra7 Qd5 Ba8 Qb3 Re7 a7 Bb6 Qd1 Qd6 Kf1 f2 Rg3 Qb8 Re3 Rd7 Nh3 Qd6 Ng5 Rc7 Ne4 Bc5 Kg2 f1Q+ Kh2 Qh3+ Kg1 f3 Kf2 Qg2+ Ke1 Nd8 Bf7 Qh6 Bg6 Rf7 Bh5 Re8 h8N Qh7 Qc2 f2+ Kd1 f1Q+ Kd2 Rb1 Qd1 Ra1 Nd6 Ref8 Ne4 Rf2 Nf7 Bb6 Nfd6 Ndf7 Ng5 Nh8 Re4 R8f7 Ke3 Neg6 Re7 Ne5 Nde4 Bc5 Bf3 Rb2 Be2 Qh2 Re6 Qfg2 Re7 Qg8 Re6 Qc8 Nf3+ Kh3 Re8 Qa6 Nf6 Bd6 Nb3 Be7 Bf1 Bf8 Re6 Nd7 Re4 Nc7 Kd4 Ne5 Re1 Kg3 Be2 Bc5+ Kc3 Bg1 Nbd4 Bf2 Ne4+ Kh3 Ndc2 Bg3 Kd4 Nb5+ Kc5 Bh4 Nd6 Bf2+ Ncd4 Kg3 Ne4+ Kh3 Ng1+ Kh4 Nf3+
N2qb2r/q1R2R1b/3P1p2/2bb4/p2B1n2/2q1P1Rn/3b1Q1K/rkR1nN2 b - - 0 1 legal: proof: h4 b5 f4 d5 c4 dxc4 a4 bxa4 b4 g5 f5 gxh4 e3 e6 Bd3 exf5 Bc2 f4 Bb3 axb3 Kf2 Ke7 g4 Kd6 Kg2 Ke5 d4+ Ke4 d5 h5 g5 c5 b5 a5 g6 f6 b6 c3 g7 h3+ Kh2 c2 b7 h4 Bd2 Kd3 Qf3 c1B Qg2 Kc2 Ra2+ b2 Nc3 f3 Nd1 c4 Qg5 c3 Qe5 f2 Be1 f1Q Qh5 Nc6 b8R Nge7 g8R Nd4 Rg5 Bd7 Rb4 Ng6 Rb7 Bc5 d6 Qa6 Qe2+ Kb1 Nf3 c2 Rc7 Be8 Kg1 h2+ Kg2 h3+ Kg3 Nf4 Bb4 Bd2 Bc3 c1Q Rgg7 Nc2 Qf2 Ne1 Rg1 h1B Rgf7 h2 Bd4 Qc3 Rg2 Kc1 Rg1 b1B Nb2 Bh7 Nc4 Kb1 Nb6 Ra7 Na8 Qb6 Nh4 Bd5 Nf5 Ra6 Rc2 Qa7 Qf1 h1N+ Kh2 Nf2 Ng3 N2h3 Qf2 Rb6 Nf1 Rb4 Rce7 Ra4 Rc7 Ra1 Rg3 a4 Rc1+
3B1q1r/P2p1r1N/n4B1k/2b5/bBB1n3/1rqr1br1/3p1QP1/N1Rn1K2 b - - 0 1 legal: proof: e4 a5 b4 c5 h4 b5 c4 bxc4 a4 f5 d4 fxe4 h5 cxd4 b5 g6 Ra3 gxh5 Rb3 h4 Rb4 axb4 f4 Kf7 b6 Kg6 a5 h5 a6 e5 a7 h3 b7 h2 Be2 h4 Nh3 d3 Nc3 d2+ Kf2 e3+ Kf1 e4 f5+ Kh6 f6 b3 f7 b2 Bh5 b1B Na2 c3 Ng5 c2 Ba3 c1Q Nb4 Bc2 Bf3 h3 Ke2 Na6 b8B Ba4 Bb2 Bb7 B8e5 Rb8 Nc2 Bc5 Bg4 Qf8 Be6 Nf6 Rg1 h1N Nh7 Nf2 Ng5 h2 Ne1 h1R Nd3 Rh3 Re1 Rg3 Kf1 e2+ Kg1 e3 Bc7 Qc2 Nc1 Bf3 Bd8 Rb4 Be5 Qc3 Nh7 Rb5 Rf1 e1R Bb3 Rb6 Bd5 Rd6 Ba2 Rd5 Nb3 Rd3 Qa1 Rb1 Re1 Rd1 Kf1 Rb1 Bd4 Rb2 Qd1 Rb1 Qe2 Rb2 Rc1 Nd1 Qf2 e2+ Kg1 Rb1 Na1 Rb7 Be6 Rb3 Bc4 e1R+ Qf1 Re7 Qf2 Qe8 Kf1 Ne4 Bf6 Qg8 Ba5 Qc8 Bb4 Qd8 f8B+ Reg7 Bd6 Qf8 Bde7 Rf7 Bd8
n1BqR3/1r6/NbQ2qN1/5qPK/P1NbNpB1/q1k5/p2nr3/r2b1n2 b - - 0 1 legal: proof: h4 b5 a4 g5 c4 gxh4 b3 d5 Bb2 b4 Ba3 bxa3 f4 dxc4 b4 a5 b5 e5 Ra2 exf4 Rb2 Qd7 Rb3 Qd8 Rb4 axb4 Kf2 Ke7 Kf3 Kf6 d4 h5 g4 c5 e4 c3 d5 Ke5 g5 f5 d6 c4 b6 h3 d7 b3 b7 h2 Qe2 Kd4 e5 b2 e6 c2 e7 c1Q e8B c3 Bf7 c2 Qa6 a2 Nd2 b1Q B1c4 h4 Qd6+ Kc3 Qe6 h3 Qe8 Ra7 Bd3 Bc5 Qe7 Bb6 Bd5 Nf6 Qh7 Re8 Bb3 Na6 b8N Nc7 Qg8 Na8 Nc4 Ne4 Qe6 Qa3 Qf7 c1B Qg6 Bce3 Bd1 Rb7 Qh6 Bed4 Qc6 Qf6 d8N Be6 Nf7 Nd2+ Ke2 Bd5+ Nfe5 f3+ Ke1 f4 Bf5 f2+ Ke2 f1N Nf3 Qd8 Bc8 Qf5 Na6 Qff6 Rg1 h1Q Rg3 Be6 Ng6 h2 Rh3 Qg1 Rh8 h1R Rf8 Ree7 Rg8 Qg4 Re8 Ne3 Kf2 Qgf5 Be2 Nef1+ Kg2 Nb3 Nfd2 Bd7 Bh5 Re2+ Kf3 Be6 Bg4 Bf7 Nh4 Bh5 Ne4+ Kd3 Nf2+ Kc3 Ng6 Nbd2+ Kg2 Nh2 Kh3 Ra1 Kh4 Nhf1 Nf8 Bf7 Ng6 Bd5 Kh5 Be4 Qe6 Bc2 Qc6 Bd1 Ne4+
3rR1RR/pb2P3/7K/bbr1Pb1N/1bn5/1n4pk/2q2Q2/bBnqR1N1 b - - 0 1 illegal: Other
4n3/q1BNpB1p/PQ4BR/r3n3/P4r2/1br3bK/1n3B1b/1N1n1kqr b - - 0 1 illegal: Other
n1knNb2/2p5/1n1Pb3/3r1n1b/2p4r/1B2R1bB/qQK1PN2/r2Bq1B1 b - - 0 1 legal: proof: b4 d5 a4 a5 f4 axb4 c4 dxc4 h4 e5 h5 exf4 Ra3 bxa3 h6 gxh6 Qc2 h5 Qd1 h4 g4 Kd7 d4 f5 Kd2 h5 a5 b5 d5 a2 d6 a1B g5 f3 g6 f4 g7 f2 a6 f3 a7 h3 Ba3 h2 Kc1 b4 Qd3 h4 Qe3 h3 Qb3 Nh6 g8B Nc6 Qd3 b3 Bf7 b2+ Kc2 Qh4 Qd1 Nd8 Nd2 Nf5 Bg2 f1N Ne4 f2 Nd2 Rh5 Bfd5 N1e3+ Kc3 f1N Bf7 b1Q+ Bb2 Qe1 Bg6 Qa2 Qb1 Nd5+ Kc2 Nb6 Ne4 Rh4 Qc1 Rb8 Qd2 Na8 Qd4 Rb5 Nf6+ Ke6 Be8 Rd5 Ba4 Bd7 Qd2 Bc8 Ne8 N1e3+ Kc3 Bd7 Bd1 Bc8 Be4 Kd7 Bb3 Ba6 Bd3 Kc8 Bdc2 Bb5 Bd1 Bd7 Nf3 Be6 Ng5 Qf1 Ne4 Qe1 Rf1 h1B Rf3 h2 Nf2 Bg2 Rh3 h1R Rg3 Bf3 Rh3 Nb6 a8B Bh5 Bc6 Na8 Bb5 Ng4 Re3 Ne5 Kc2 Nd7 Qc3 Ndb6 Qf6 Qa6 Bd4 Bb2 Bc5 Qa2 Qd4 Bc1+ Qb2 Bd2 B5a4 Bc3 Bc6 Be5 Bd4 Bg3 Bc5 Rd3 Bg2 Rd5 Bh3 Qf1 Nd3 Nb7 Rf3 Qe1 Bd4 Rf1 Bg1 Nd8 Nf2 Qea5 Re3 Qc5 Kc3 Re1 Bdc2 Ra1 Bd1 Qca5+ Kc2 Qb4 Rd3 Qe1 Re3
3BN1r1/r6N/2K5/1Q1Npr1b/p1NPb1P1/3bB1rn/R1kb3q/nb1b4 b - - 0 1 legal: proof: b4 b5 a4 bxa4 e4 g5 h4 gxh4 f4 c5 e5 e6 b5 Ke7 f5 Ke8 Bc4 exf5 e6 f4 e7 Ba6 Ra2 Bc8 Be6 dxe6 Rb2 Kd7 Rb4 cxb4 Ke2 Kd6 Kf3 Kc5 Ke4 Kc4 e8N h5 d4 f5+ Ke5 a5 g3 a3 c3 b3 b6 f3 b7 h3 Bd2 Kd3 c4 f2 c5 f1R c6 b2 c7 h2 Nh3 a4 Nd6 f4 Qe2+ Kc2 Qa6 h4 Ne4 f3 Ng1 h3 Nf6 f2 Nf3 a2 Ng5 a1R Ba5 Ra7 Ke4 e5 Nh5 Nf6+ Ke3 Ne4 Ng7 Nd7 b8B Ra3+ Nc3 b1B Kf3 Bb4 Nh7 Qh4 Nf5 Rg8 Qh6 Ndc5 Qf6 Nb3 Qb6 Na1 Ng7 Bg4+ Ke3 Qh5 c8N Ng5 Qb5 Bd1 Nb6 Rb3 Rg1 h1B Bc7 h2 Bd8 Bhf3 Ne8 h1B Rg2 Qh2 Nc4 Bh5 g4 Nh3 Ke4 Ra3 Nd5 Bd2 Bb4 Rf3 Bbe7 Rg1 Bh4 f1B Bf2 Rf5 Be3 Bfe2 Ndb6 Bd3+ Kd5 Ng5 Kd6 Nh3 Re2 Bhe4 Nd5 Rg3 Kc6 Kc1 Bg1 Be1 Ra2 Bd2 Nb2 Kc2 Bf2 Rff8 Be3 Rf5 Nc4+
1B5B/1p1bn2q/1N3pr1/n2kn3/B2rR1bp/q1R1P3/3P2q1/B1b1KQ1r b - - 0 1 illegal: No proof kernel
b3r1qr/2P3bp/Nkb1b2Q/5N2/p1nr1Nq1/R1K2PB1/3nbNpR/8 b - - 0 1 legal: proof: g4 b5 d4 f5 a4 fxg4 d5 bxa4 d6 e5 h3 gxh3 Bg2 e4 Bf3 cxd6 Bg4 d5 Be6 d4 Bc4 Ba3 Bb5 Bf8 Bd3 exd3 Kd2 g5 c4 d5 b4 Kd7 e4 Kc7 b5 a5 e5 g4 e6 h2 e7 a3 e8N+ Kb6 Qf1 a2 Nf3 g3 Nf6 a4 Bb2 Be6 Ne8 Bg7 Qg1 Nf6 Nh4 Ne4+ Ke1 d2+ Kd1 Nd7 Kc2 d1R Ba3 Nd2 Nf6 d3+ Kc3 Ne5 Ne4 Qg8 Bd6 Re8 Nf5 d4+ Kb2 Nf1 Nbc3 d2 Ne2 d3 c5+ Ka5 c6 Kb6 Kc3 Nc4+ Be5 Nd6 c7 Nc4 Rb1 a1Q+ Rb2 Qa3+ Rb3 Qaf8 Nfd6 Qf5 Nf4 Qg4 Nf5 Ka7 Qg2 Kb6 Rg1 h1B Qh2 Bf3 Qh6 g2 Rh1 Be2 Ra3 Bf3 Ned6 Bc6 Rh5 Ra1 Ne4 d1B Rh3 d2 Rh2 Be2 f3 d1B Nf2 Bc2 Qh3 Rd1 Qh6 Rd4 Bd6 Ka5 b6 Nfd2 b7 Kb6 b8N B2e4 Na6 Ba8 Nh5 B4d5 Bg3 Bdc6 Nf4
2r1Nn2/3RB2q/k1Npnq1P/Q4rqb/6RP/3p4/nq2pb2/2RRb2K b - - 0 1 illegal: Other
8/Rb2b3/1n3B2/KR1p1pPB/1r2b1pP/n7/bQ1NRrb1/r1kqRr2 b - - 0 1 legal: proof: g4 g5 b4 h5 d4 c5 f4 cxd4 b5 gxf4 g5 e5 b6 e4 Nd2 axb6 Ndf3 exf3 Qd3 b5 Qf5 b4 Qg4 hxg4 Kd2 Ke7 a4 Kd6 e4 Ke5 c4 f5 h4 b5 c5 b3 a5 b4 c6 d3 c7 Kd4 e5 b2 a6 b1B a7 f2 e6 b3 e7 b2 e8R f3 Ra3 Nc6 Rh2 Nb4 Rc3 Nc2 Re3 Be7 Rb3 Na3 Re1 Ba2 Rh3 b1B Re6 Bb7 c8Q Nf6 Qb8 Nd5 Re3 Nb6 Bg2 f1B Rh2 f2 Bd5 Bg2 Rb5 f1R Bf7 Rf2+ Re2 Rh6 Rh1 Rc6 Be8 Rc4 Bh5 Rb4 Nf3+ Kc4 Re1 Kb3 Bb2 d6 Ke3 d2 Bf6 d1R Nd2+ Kc2 Qc8+ Bc4 Kd4 Kc1 Kc3 B1e4 Qe6 Ba2 Qb3 Rb8 a8R Qd7 Ra7 Ra8 Rba5 Qa4 Rb5 d5 Re3 Bab1 R1e2 Rdf1 Qa2 Qd1 Re1 Bbd3 R3e2 Bc4 Qa1+ Rb1 Qa2 Rb8 Qb3 Ra1 Qb4 Ba2 Qd4 Bd8 Kb4 Be7+ Ka5 Rc8 Qb4 Rc4 Qb3 Rb4 Qb2+
bB1RB3/r1N2r2/pB1Q2n1/5bpn/5n1P/1bq1p1nN/2Bb1P1K/b3k3 b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 e4 b5 g4 bxa4 e5 hxg4 e6 fxe6 Ra3 e5 Rg3 e4 Rb3 axb3 h4 Kf7 c4 Ke6 c5 Ke5 b5 g5 c6 d5 c7 a6 b6 e3 b7 Kf4 Bg2 e5 Kf1 b2 Qe1 d3 Qb4+ d4 Qa3 e4 Qa2 g3 Qb3 d2 Qd3 d1B Qc3 d3 Na3 b1N Qa1 d2 Nf3 e2+ Kg1 e1B Qa2 e3 Qc4+ Qd4 Rh2 Ne7 Qc2 Ng6 Nb5 Nd7 b8B Qc3 Bf1 g2 Rh3 Nf6 Qb2 Ra7 Be2 Rh7 Kh2 g1N Kh1 Bb3 Bd1 Bg7 Rh2 Ne2 Qa3 Bf5 Bc2 d1B Bb2 Bd2 Ng1 Nh5 Nh3+ Kf3 c8B Nef4 Nc7 Ke2 Qd6 Ke1 Bd7 Bf3+ Kg1 Bf6 Rh1 Ba8 Be8 Rf7 Ba1 Qd4 Bb2 Nc3 Ba3 Qd3 Bc5 Ne4 Bb6 Neg3 Kh2+ Ke2 Bc5 Ba1 Bb6 Qc3 Rd1 Bc1 Rd5 Bd2 Qc6 Kf1 Rd8 Ke1 Qd6
1Kb4b/2n1q1RQ/PN1B2B1/3pp3/2p1bR1r/3Pnb2/pk6/b1B1nB1r b - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 g5 h4 gxh4 a4 a5 e5 axb4 Na3 bxa3 e6 fxe6 Qc2 e5 Qd1 e4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 f3 h5 g5 e5+ Kf5 d5+ Kg6 c5 Kf7 h3 a5 h2 f4 e3 g6 h4 f5 a2 d3 Kc3 g7 e2 f6 e1N Qg4 h3 Bd2+ Kb2 Qg3 c3 Ne2 c2 Qh4 c1B Qh7 c4 Nc3 Na6 Rg1 Nc7 a6 Ne7 g8B h1B Rg7 h2 Na4+ Kc2 Qh6 Bb2 Nb6 Nf5 Bh7 Be4 Bg6 h1B Qh7 Bhf3 Rb1 Ba1 Rd1 Ne6 Rb1 Qc7+ Ke8 Ne3 f7 Rb8 Rc1+ Kb2 Rd1 Be7+ f8B Bf6 Rc1 N1c2 Re1 Qa7 Re2 Ne1 Rg2 Qc7 Rg4 Qd6 Rf4 Nc7+ Kf7 Qa3 Bd6 Ra8 Rg8 Bg7 Ke7 Rb8 Kd8 Rb7 Qh3 Rh4 Qd7 Bh8 Rg7 Na8 Qh3 Rf7 Qf5 Nc7 Qh5 Rf5 Qh6 Rfh5 Qh7 Bb7 Kd7 Rh1 Kd8 R5h4 Kd7 Bc8+ Kc6 Bcg4 Kb7 Bc8+ Kb8 Qb4 Bf8 Qd6 Be7 Qd8 Bd6 Qe7 Bc1+
BnrB1n2/b4pBb/3nQp2/N4bP1/2p1k1b1/2K1pn1B/1P1R1q2/4rR2 b - - 0 1 illegal: No possible last move
2n1b3/r6N/1pppn1r1/2k3n1/B4nR1/p2P2bP/1N1Nn2B/K3R1N1 b - - 0 1 legal: proof: g4 f5 e4 fxe4 a4 h5 c4 hxg4 a5 Rh7 a6 Rh8 b4 Rh6 b5 Rh8 b6 cxb6 axb7 Rh5 Qe2 Rh3 Qd1 Rh8 c5 a5 c6 dxc6 Ra3 a4 Bb5 Ra5 Bf1 Rb5 Ra1 Rb3 Qf3 Na6 Qg3 Ra3 Qd6 exd6 Nh3 Bd7 Ng1 Qa8 bxa8N Nb8 Bh3 Bf5 Bf1 Bc8 Kd1 Kd7 Kc2 g5 Kb2 g3 f4 g4 f5 e3 f6 e2 h3 e1N f7 g2 d3 g3 Be3 Nf3 Rh2 Ng5 Nd2 Bh6 Nb3 Ne7 Nd2 Ke6 f8N+ Kd5 Ne6 Rg8 Rd1 Rg6 Kb1 Nd7 Nc5 Nf8 Be2 Bd7 Re1 Be8 Bf4 Nc8 Rh1 Nfe6 Bd1 Bg7 Rh2 Be5 Nc7+ Kd4 Nd5 Ra2 Nd7 Ra3 Nf8 Kc5 Nc3 Ra2 Nge2 g1N Nh7 g2 Rh1 Ra3 Bh2 Bg3 Bc2 Ra2 Nd1 Ra3 Nb2 Ra2 Nd4 Ne2 N4f3 N2f4 Re4 Ra3 Rhe1 g1N Bd1 Nge2 Ng1 Rc3 Ka1 a3 Ba4 Rc4 Bc2 Ra4 Rd4 Ra7 Ba4 Nd5 Rh4 Ndf4 Rg4
6Nk/1N4br/1B1B4/1nrqPRn1/bRnb1b1p/1Nr5/4KPNn/1q6 b - - 0 1 legal: proof: c4 b5 cxb5 f5 e4 g5 a4 c5 h4 gxh4 d4 e5 a5 exd4 e5 c4 Be2 Qxa5+ Qd2 c3 Bd3 Qc7 Be4 fxe4 Qg5 Qa5 Qd8+ Qxd8 Rh3 Kf7 g4 Kg7 b4 h5 b6 d5 g5 a5 b5 Rh7 b7 d3 g6 c2 b6 d2+ Ke2 d1Q+ Ke3 a4 Ra2 d4+ Kf4 e3 Nd2 e2 Kf3 e1N+ Ke4 a3 Ne2 d3 Ke3 Na6 b8B Nf3 b7 Nh6 Ba7 Bd7 b8N Ng5 Ng3 Ng4+ Kf4 Nc7 Nf5+ Kh8 Rb2 a2 Rb1 a1B Nb3 d2 Bb6 Ra5 Nfd4 Ba4 Na6 Qd5 Nf3 Bd4 Ba3 c1B Rg3 h3 Ne1 h4 Rb2 h2 Bd6 h1R Na1 Rh3 Ng2 Nh2 Rf3 Q1b3 Nc5 d1N+ Ne3 Qc2 Nb7 Rc5 Rb4 Nb5 Nb3 Qb1 g7+ Kg8 Ba5 Nb2 Bac7 Nc4 Bb6 Kf7 g8N Kg7 Nf6 Kh8 Ng8 Nf1 Kg4 Bg7 Ng2 Bce3 Rf7 Bf4 Rf5 Rc3 Ne3 Ne4 Kf3 Ng5+ Ke2 Nh2 Ng2
Br1BR2K/2R1N3/P2qr3/qk4qn/5bR1/nPN3np/3pR2b/b5b1 b - - 0 1 legal: proof: f4 b5 d4 a5 c4 bxc4 d5 e5 b3 exf4 d6 a4 Nd2 a3 Nb1 cxd6 Nf3 d5 Ng1 d4 h3 f3 Qd2 fxg2 Qb2 axb2 Na3 g5 Bf4 g4 Nb1 g3 Bc1 Bb7 Na3 Bf3 Nb1 Bg4 hxg4 Ra7 Rh2 Ra3 Rh1 Ra8 Kd2 d5 e4 Kd7 a4 Kc6 a5 h5 e5 f5 g5 c3+ Kd3 f4 e6 c2 a6 h4 g6 f3 e7 h3 e8R f2 g7 Qg5 Re1 Nd7 Re6+ Kb5 Be2 f1N Re4 Rh6 Ra3 Re6 Rh2 Nb6 Rf4 Nf6 g8R Nh5 Rf7 Bg7 Rgf8 Rb8 Rf3 Nc4 Ra4 Na3 R3f7 Bh8 Bf4 c1B Nf3 g1B Bc7 g2 Ne5 Nfg3 Bf3 Bf4 Ng6 Bf6 Ne7 B6e5 Rh1 Bh2 Re1 g1B Bd8 Bf6 Re3 B6e5 Re8 Bh8 Kd2 d3 Rg7 d4 Ba8 Qc5 Rg4 Qg5 Rc4 Bf6 Rc7 B6e5 Kd1 d2 Re4 Nh1 Ke2 d3+ Kf3 d1Q+ Re2 N1g3 Ng8 Qe1 Ne7 Qa5 Nc3+ Kb4 Ne4 b1Q Nc3 d2 Nf5 Nf1 Ne7 Qe1 Ke4 Qg3 Na4 Kb5 Kd5 Q5h4 Ke4 Bg7+ Kf5 Bf6 Kg6 Ba1+ Kh7 Qg5 Re1 Qd3+ Re4 Qd6 Re2 Ng7 Kg8 Ng3 Kh8 N7h5+ Nc3+
1q2Bn1R/2n4p/q1n3nb/B2P1b2/2nrk1NP/2B1N1r1/Kn2RqB1/3r4 b - - 0 1 legal: proof: c4 d5 e4 dxe4 b4 a6 b5 axb5 Qf3 bxc4 Qd1 c3 g4 b5 a4 f5 a5 fxg4 Qa4 bxa4 Kd1 Kd7 Kc2 Kd6 f4 Kd5 h4 e5 d4 c5 f5 g5 f6 a3 Kb3 c4+ Ka2 c2 f7 c3 a6 g3 a7 g4 Ne2 e3 Bh3 g2 Nd2 g1N Bb2 c1N+ Kb1 g3 Ne4 a2+ Kc2 g2 Ba3 Bh6 f8B Nc6 Bg4 Nd3 Kb3 c2 Ng5 c1N+ Kc2 e4 Bab4 Nf6 Bg7 Nd7 Bf5 Nf4 Kb2 Ng6 Ka3 Ndf8 Bc3 Nf3 Bf6 g1N Rh3 Rg8 Rb1 Nd3 Rb3 Nfe5 Nc1 a1Q+ Na2 e2 Bg7 e1Q Rb6 e3 Rh2 e2 Ne4 Nb2 Bd7 Nh3 Nf2 Nhf4 Ba5 N4e6 Be8 Nc7 Rb8 Bf5 Ng4 Qf2 Rc8 Rb8 a8B Ke4 Rg2 Qaf1 Nb4 e1R Nd5 Rd1 Nde3 Rb4 Ka2 Qa6 Bb7 Nec4 Bf6 Qg1 Re2 Qf2 d5 Be6 Bd7 Nd6 Bc3 Nh8 Ne5 Rbd4 Be8 Rg3 Bf7 Ndc4 Rb8 Bg4 Bc8 Nhg6 Bce6 Nd7 Rc8 Qe7 Rh8 Ndf8 Be8 Qb4 B6d7 Bh3 Bg4 Qb8 Bf3+ Kf4 Bg2 Bf5 Bh3 Ke4 N5g4 Qg1 Bf1 Qf2 Bg2+
K5Bb/p1rNRr2/8/kBb1rPn1/1R3qPR/4pRrr/n1N1b1r1/1n6 b - - 0 1 legal: proof: d4 b5 g4 g5 f4 f5 e4 fxe4 a4 bxa4 d5 h5 f5 h4 Bf4 gxf4 d6 cxd6 Qe2 d5 Qe3 d4 Qg3 hxg3 Ke2 d5 h4 Kd7 b4 Kc7 c4 Kb6 b5 e5 c5+ Ka5 h5 f3+ Kd2 e3+ Kd3 a3 c6 e2 h6 e1R c7 g2 b6 a2 b7 f2 h7 e4+ Kd2 d3 Kc3 d4+ Kc4 d2 Ne2 d1N Nc1 g1R Bh3 f1R Bg2 d3 Bh3 d2 Ne2 Qd4+ Kb3 Rf2 Nf4 Nc3 Nd3 d1R Ne5 Bc5 Rh2 Na6 b8R Nf6 Rb4 Rfg2 Na3 Nb1 Nd7 Rc1 Nc2 Bb7 Rh1 Raf8 c8B Rf7 Rh2 Qd2 Kc4 Qf4 Rh1 Rg3 Bf1 R1g2 Rh4 Ree3 Bd3 Re8 h8R Re5 Rd8 Nh7 Re8 Ng5 Re7 Rh3 Bf1 Reg3 Be2 Ba8 Bb7 e3+ Be4 Qf2 Bd5 Bb7 Be6 Bf3 Bd3 Qf1 Bd5 Be2 Be6 Re4+ Kd5 Re5+ Kc6 Qf2 Kb7 Qf4 Rb2 Nb4 Ka8 Nc3 Rab1 a1B Bb5 Nba2 Rb4 Bb2 Ra1 Nb1 Bd5 Rd1 Be6 Rd6 Bd5 Rc6 Bdc4 Rc7 Be6 Na3 Rf1 Nb1 Bec4 Re4 Rf3 Bh8 Bb3 Re5 Be6 Rf6 Bg8 Rf8+ Nb8 Rf7 Nd7
2b2rN1/K3bN1B/1NqBp1b1/1qnR1N1p/1R3k2/1r6/PP2n3/2q1rq1r b - - 0 1 illegal: No possible last move
1RnB2R1/1n4r1/2B5/pPbK2Bn/Prp5/1n2Nrbn/p4q2/1bkNB3 b - - 0 1 legal: proof: g4 e5 f4 exf4 a4 b5 c4 d5 e3 fxe3 g5 dxc4 g6 b4 Qb3 hxg6 Bh3 g5 Bf1 g4 Qa3 bxa3 Ke2 Kd7 b4 Ke6 h4 Kd5 d4 Ke4 h5 f5 d5 g5 b5 c5 d6 a5 d7 a2 h6 g3 h7 g2 Rh4+ g4 Rh2 g3 Rh3 f4 Rh2 c3 Ba3 c2 Bb2 c1N+ Ke1 f3 Kd1 f2 Kc2 e2 Kc3 Ke3 Kc4 e1B Ne2 g1N Na3 Kd2 Nd4 g2 Rh4 Na6 Rf4 Qh4 d8B Bf5 Bg5 Ne7 Rb1 Nb3 Bd3 f1N Bc2 Ng3 Ba1 Nh5 Be4 Nc8 Kd5 Qf2 Ne2 Nh3 Nc2 g1R Baf6 c4 Ne3 Bc5 Bf3 Ra7 Nc3 Rf8 h8B Rg7 Bd8 Bg6 Ra1 Bb1 Ncd1 Kc1 Rf7 Rg2 Rb7 Rg3 Be4 Rff3 Rb6 Bf8 Rb8 Nac5 Kc6 Nb7 Kd5 Rg6 Bc3 Rg7 Bb4 Bc5 Bc3 Rg2 Bb4 Qb2 Bc3 Bg3 Be1 Rc2 Bg6 Rc3 Be8 Qf2 Bd7 Rc2 Bc6 Rb2 Nf5+ Bf4 Be8 Kc2 Bh6 Rg8 Bc6 Nd4 Bd2 Rb4 Nc3 Nb3 Ne3+ Kb2 Be7 Be5 Bd8 Bc2 Rg1 Bb1 Be1 Kc1 Ncd1 Bf4 Rg7 Bfd6 Bhg5 Bg3 Rh7 Rg6 Rh8 Rg7 Rg8
4N3/1bR3NP/Pb6/1n2pp2/3q2r1/pB1RrrB1/n1rk1rNn/1KbN4 b - - 0 1 illegal: No proof kernel
1Br5/R4B1B/1n2q2P/pqNRr1bB/N1b1pp2/k1rq4/1r1P2b1/K3n3 b - - 0 1 legal: proof: g4 c5 e4 d5 b4 cxb4 f4 h5 a4 hxg4 f5 b5 f6 bxa4 Qe2 exf6 e5 f5 Qd3 f4 Qe4 dxe4 Kd1 Ke7 h4 f5 c4 g5 Kc2 a5 Kb2 f3 c5 f4 h5 f2 h6 g3 e6 g4 c6 Kd6 e7 Kc5 e8B a3+ Ka2 g2 c7 g3 Bc6 Ne7 Nh3 g1Q Bd7 g2 Bc4 f1B Nc3 b3+ Kb1 Kb4 Bf5 b2 Be2 a2+ Kc2 b1Q+ Kd1 Nec6 Nf2 Nd4 Bh3 Be6 c8B Nc2 Bf5 Qd3 Bh3 Be7 Bb7 Bc4 Na4 Nd7 Bf5 Rhe8 Bd5 Rac8 Rh5 Bg5 Bh7 Ne1 Bf7 Re5 Bf3 Qb2 Rb1 a1R Be2 Nb6 Bg4 Qd7 Nd3+ Ka3 Ndc5 Qgd4 Be2 g1R Bf3 Ka2 Bg4 Qbb5 Bb2 Bg2 Kc1 Qd3 Bd1 Rd5 Be5 Ka3 Bb8 Ra2 Rb4 Rc2+ Kb1 Rc3+ Ka1 Re5 Rb2 Qe6 Bg4 Be7 Rf5 Rh1 Bgh5 Bg5 Rb4 Bd5 Rd4 Bc4 Rd5 Rh3 Rf6 Rc2 Rf5 Rb2 Rf6 Qe2 Rg6 Rc3 Rg8 Qf3 Re8 Qe2 Re7 Qd3 Ra7
2RRnk1B/P1Bp2b1/1r3p2/1r5b/1Nnp1N2/1Kb1P3/2r1nq1q/bN5N b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 f5 Kd2 f4 Ke1 hxg6 Bb2 g5 Bc1 g4 e3 f3 Kd2 Ra3 Be2 fxe2 f4 Na6 f5 Ra4 f6 Nb8 Qf1 Ra8 Qf4 Kf7 Qf2 Ke6 f7 Kd6 Qf6+ exf6 Nh3 Ke6 Ng1 Ke7 a4 e1B+ Kd3 b5 h4 g5 c4 g3 Kc2 b3+ Kb2 b4 h5 g4 a5 g2 a6 g3 a7 Na6 h6 Qc7 c5 Rb8 c6 Bg7 f8N Bb7 h7 Nh6 Rh4 Ng4 Ra4 Ne5 Ra5 Nc4+ Ka1 b2+ Ka2 Bc3 Nd2 b1R Ba3 Ba1 Ngf3 g1B Rg5 g2 Ne4 Qh2 c7 Bf2 Ng3 g1N Rf5 Be1+ Nd2 Bf3 Nh1 Rb6 Rc5 Bh5 Ne6 Ne2 Nf4 Kf8 c8N Nc7 Ne7 Ne8 Ned5 Rc1 Rg4 Rc2+ Kb3 Rg8 Nb1 Bec3 h8B Rb5 Ka4 b3 Nb4 b2 Rc8 Rb6 Rd8 Qf2 Rg5 Qh2 Rc5 Rb5 Nd2 b1Q Rcc8 Qbg1 Kb3 Qgf2 Nb1 Bh6 Bc1 Rg1 Bd2 Bg7 Be1 Rb6 Bd2 Rg5 Be1 Qfh4 Bg3 Rgb5 Nd3 Qf2 Bc7 Qhh2 Nf4
nRr3kR/2q1P3/2QP1rq1/R1K1b2q/5n1b/1qQQB1b1/2n1n3/5q1N b - - 0 1 legal: proof: c4 a5 f4 d5 a4 dxc4 b4 axb4 f5 b5 f6 b3 Ra3 b4 Nh3 Bd7 Ra1 Bb5 Ng1 exf6 Bb2 f5 Bc1 f4 axb5 h5 g3 g5 Bg2 g4 Bf3 Qd6 Nc3 Qd8 Ne4 Ra2 Nf2 gxf3 g4 Ra4 g5 Ra8 Ng4 hxg4 Kf2 f5 h4 Kf7 e4 c5 d4 g3+ Kf1 f2 Ke2 f1N e5 c3 Kd3 g2 Kc4 b2 h5 b1Q b6 f3 h6 c2 b7 f4 d5 b3 h7 b2 d6 f2 Ra5 f3 Rh3 Be7 Ne2 g1B Rh2 Nd7 b8R Ngf6 Rb6 Nd5 Bd2 c1B Rh4 Nf4 Bb4 Bh2 Nd4 Rf8 h8Q Qc7 Rc6 Qg6 Ba3 b1Q Rh5 Rac8 Raa6 Nb6+ Kc3 c4 Ne2 Bg3 Kd4 c3 Kc5 c2 Qd3 Qb3 Ra5 Ne3 Qf6+ Kg8 e6 f1Q Qfc3 Bf6 e7 f2 Rh6 Bh4 Ng3 Be5 Nh1 Qe2 Bb4 f1Q Rh8+ Kf7 Ba3 Na8 Bb2 Bd2 Bc1 Bde1 Bd2 Qg4 Bc1 Q6h5 g6+ Kg7 Bd2 Rf6 Bc1 Beg3 Bd2 Nc4 Bc1 Na3 Be3 Qcd7 Rc7 c1N Rc6 Nc2 Rc7 Rg8 Rb7 Nce2 Rb8 Qgf5 Qd5 Rc8+ Qc6 Qc7 Qd3 Qh7 Qc3 Qfh5 Qd3 Kh6 g7 Qg6 g8Q Qh5 Qe6 Kg7 Qef5 Q7g6 Qc3 Kf7 Qfd3 Kg7 Rh6 Kg8 Rh8+
Q3n1k1/2rP2B1/q7/5K1p/2NqnQ1p/1n1R1P2/Brrr2n1/1BQq1b2 b - - 0 1 legal: proof: g4 d5 c4 dxc4 h4 f5 e4 fxe4 a4 a5 h5 g5 h6 Bg7 Rh4 gxh4 g5 Na6 g6 Bf8 g7 Nf6 g8B Bg7 Na3 Nb8 b4 axb4 hxg7 bxa3 Rb1 Qd7 Rb3 Qe6 Rh3 Qd7 Rh1 Qd8 Ke2 c5 Ke3 h5 Kf4 e5+ Kg5 b5 d4 a2 d5 a1Q f3 e3 d6 e2 a5 e1N a6 e4 a7 b4 Bd3 c3 Bgc4 e3 Be2 b3 Bb5+ Kf7 Qd4 c2 Rh2 b2 Rf2 b1R Bb2 c1R Qa4 c4 Qb4 c3 Bbd3 c2 Qe4 Nbd7 Qc6 Ne8+ Kf4 Rh7 Bd4 Nc5 Nh3 Qa6 Ng5+ Kg8 Ne4 Rb2 Nd2 Ne4 Nc4 Bh3 Rf1 Rab8 a8Q Ng2+ Ke5 R8b7 Rd1 Rc7 Bf1 e2 d7 e1Q Qf6 Rh6 Qf4 Rd6 Rd2 Qd1 Bfe2 N4f6 Bf5 Ne4 Rd3 Qb8 Bg6 Qba7 Bf5 Ne1 Bg6 Bf1 Kf5 Ng2 Bh7+ Kf7 Be5 Qd4 g8Q+ Ke7 Qgg5+ Kf7 Bg6+ Kg8 Bg7 Qdb6 Rc3 Rd2 Rd3 Qd4 Qh6 Ra1 Qhg5 c1N Qh6 Raa2 Qhg5 Qe1 Bd1 Qe2 Bb3 Qd1 Qh6 Rbc2 Qhg5 Rab2 Ba2 Nb3 Qh6 Re2 Qc1 Rf2 Qhf4 Rfd2 Re3 Nec5 Kg5 Rc3 Bgb1 Ne4+ Kf5 Rcc2 Rd3
5nbn/1p3B1N/qrPQQR2/1nn1p3/2q5/3QBB1K/1kq2Pr1/r3q3 b - - 0 1 legal: proof: g4 a5 a4 c5 d4 cxd4 e4 g5 h4 f5 b4 fxe4 h5 axb4 a5 h6 a6 Bg7 a7 Be5 Nd2 Na6 Ndf3 Bb8 axb8Q Qb6 Nh4 Qc7 Ra5 gxh4 g5 Qb6 g6 Qd8 Rg5 hxg5 c4 d5 h6 Kd7 c5 Ke6 c6 d3 h7 b3 g7 b2 Be3 b1R Bd2 g4 Nh3 e3 Bb4 g3 Ba5 d2+ Ke2 g2 Kf3 g1N+ Kg2 e2 Qc7 e1Q Qc2 d1Q Qd7+ Ke5 Qdf5+ Kd4 Qa2 e5 Rh2 Nf3 Qg5 Nc5 Rh1 Rb6 Rg1 Ne7 g8B Ng6 Qb3 Qc2 Qb1 Be6 Be2 Nf8 Qg3 Ng5 Rh1 Nf7 Bb4 Ra1 Bf1 Qa8 Qgb3 Qa6 Ng5 h3+ Kg3 h2 Rg1 h1Q Q1a2 Qhe4 Bg2 Qed3+ Bf3 Qdc4 Qbb1 Kd3 Rh1 d4 Bd2 Bd5 Bf4 Kc3 Be3 d3 Rh6 d2 Kh3 d1N Rd6 Q2b3 Qf5 Qc2 Rf6 Be6 Qa5+ Kb3 Qd2 Kb2 Qd6 Nc3 Qd3 Bd5 Qe6 Nb5 Qd6 Nd8 Be6 Rg8 h8Q Nf7 Nh7 Rg2 Qg8 Nh8 Bf7 Be6+ Qg4 Bd5 Bg6 Bf7 Qge6 Bg8 Bf7
4Qbnn/n2pbpNr/1r2Q3/1QN2rr1/P5B1/2kP1b2/5K2/n2N1b1R b - - 0 1 legal: proof: c4 g5 a4 b5 g4 bxc4 h4 e5 f4 a5 h5 e4 d3 Qe7 Kd2 c3+ Kc2 Qd6 Be3 gxf4 g5 Qg6 Bf2 e3 Kc1 exf2 b4 axb4 Ra3 bxa3 hxg6 Bc5 Rh2 Bb4 Rh1 Bf8 e4 Ke7 g7 Ke6 g6 Ke5 Rh4 Kd4 e5 c5 e6 h5 e7 c2 Kd2 c1B+ Ke2 c4 e8Q c3 Qd2 a2 Qe6 a1N Qf5 c2 Qfa5 Rh6 Qa6 Nc6 Rg4 h4 Nc3 h3 Qb7 h2 Rh4 h1R Qc7 Ra5 Ne4 Rg5 Qb7 Bca3 Nh3 Na7 Qb5 Bae7 Nc5 Bb7 Qe3+ Kc3 Qe6 f3+ Ke3 c1N Be2 f1R Nf2 Rh7 Rh2 Rhg1 Rh1 Rf5 Bd1 Rgg5 Be2 Rfg1 Bd1 R1g4 Be2 Rb4 Nd1+ Kc2 Kf2 Rb2 Bf1 Ne2 Bh3 Nf4 Bg4 Kd2 Qbc6 Rb6 Qb5 Nf6 g8Q Bc6 g7 Ng6 Kg3 f2 Qh8 f1B g8N Kc2 Nh6 Bf3 Kf2 Ng8 Qhe5 Nh8 Qe4 Rf4 Nf5 Kd2 Ng7 Rff5 Qa8 Kc2 Qe8 Kd2 Nb2 Kc3 Nd1+
5N2/q1qp3n/RQn2N1p/r3Q1Pp/q3BK2/kqp5/NrQ3P1/3q3b b - - 0 1 illegal: Other
3n4/2p1qkq1/q4BR1/3n1QpQ/2Np3p/1R2Pr2/QbPn2p1/3RK2b b - - 0 1 legal: proof: b4 a5 h4 axb4 d4 b5 a4 f5 g4 e5 a5 exd4 h5 b3 Bf4 fxg4 Bd2 Ra6 Bc1 g5 Na3 Bxa3 Bg2 Rg6 hxg6 Bf8 Bd5 Nf6 Bg8 Nxg8 f4 h5 g7 d5 a6 d3 a7 h4 a8R b4 e3 b2 f5 b1Q f6 d2+ Ke2 b3 R8a5 b2 R5a2 g3 Ra8 Bb7 R8a3 Qa2 Rh3 b1N Qf1 Qe7 Nf3 Kf7 Rh1 Nc6 Bb2 Nd8 Rb3 Qa6+ Kd1 Rh7 Qe2 Rh6 Nh2 Bc6 Ng4 Rh7 Be5 d4 Rg1 Bh1 Ra5 g2 Ra4 Ke6 f7 Nf6 g8Q Nd5 Bf6 Rh6 Ne5 Rg6 Bg7 Rf6 Nc4 Rf3 Re1 Qf6 Rf1 Ba3 f8Q+ Qf7 Qc5 Bb2 Bf6 Qd6 Qa5 Qe7 Qg6 Qg7 Qf5+ Kf7 Ra1 Rg3 Qa2 Rh3 Qef3 Rg3 Ke2 d1Q+ Kf2 Qc1 Rd1 Nd2 Ke1 Rh3 Qe2 Rf3 Rb1 Ba1 Rb6 Qca3 R1b3 Qa6 Rd6 Bb2 Re6 Rf2 Qh5+ Kg8 Be5 Rf4 Rh6 Rf3 Bf6 Kf8 Rg6 Ke8 Rb1 Kf7 Rd1
1Q3q2/r2R2N1/nQ1rr2q/2BqP1n1/1Q1P2K1/3b1Bb1/b1kBr1q1/1n1q4 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 g5 b5 e5 b6 exf4 a3 g4 Ra2 axb6 Ra1 b5 Qc2 b4 Qa4+ Nd7 Qd1 Nb8 a4 h6 Ra3 h5 Rf3 Bh6 Na3 Bf8 Nc2 Ra6 Ne3 gxf3 g4 Ra5 g5 Ra8 Ng4 hxg4 Kf2 Ke7 h4 Ke6 d4 Kf5 a5 Ke4 g6 f5 a6 b5 e3 c5 a7 g3+ Ke1 f2+ Ke2 c3 h5 b3 h6 b4 h7 c2 g7 g2 Rh6 b2 Rf6 b1R Rd6 c4 Rh6 b3 Rh5 b2 Nf3 g1R Qd2 c3 Ne1 Qd5 Nd3 Bd6 Rh4 Nf6 g8Q Na6 Qf7 Be6 Rh3 Rg2 Qd1 Rhe8 h8B Nh7 Rg3 Ng5 Bd2 c1Q Qf8 c2 Qh6 Bf7 Ne5 Re6 Qe1 Rd8 a8Q Ra1 Nd3 b1N Bc3 Qb2 Bg7 c1Q+ Qd2 Bb8 Rf3 Rdd6 Qf6 Rh2 Bg2 f1B+ Kf2 Qa3 Nb2 Bd3 Rh3+ f3 Kg3 f4+ Kg4 Qa4 Rg3 Qad1 Nc4 Ra4 Bh1 Re2 Bf8 Ra1 Rg2 f2 Be7 Bc7 Qb8 f1Q Ba5 f3 Qdb4 f2 Bf8 Rd8 Bc5 Bg3 Rh2+ Qg2 Rh7 Bg8 Rd7 f1Q Qh6 Qf8 Qf6 Bc2 Nd6+ Kd3 e4 Ra2 Ne8 Bf7 Ra7 Rdd6 e5 Bg8 Qfd8 Ra3 Qdb6 Qcf4+ Kh5 Q4f6 Kg4 Q6h6 Rd7 Qc4 Nf6 Qa8 Rf7 Re8 Bg2 Nc7 Qa4 Qb5 Rg7 Ba2 Rd7 Ree6 Bd2 Qbc6 Qab4 Ra7 Nh5 Na6 Bf1 Qe4+ Bf4 Qad5 Ng7 Qeh1 Bg2 Qhg1 Bf3 Qg2 Qa4 Kc3 Bc1 Bd3 Qab4+ Kc2 Bd2
4R1qq/bB6/Q7/1n1Pn2r/rBr1NK2/qB1b1b1P/5b2/1k1QqQbb b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 g5 b5 e5 b6 exf4 a3 g4 Ra2 axb6 Ra1 b5 Qc2 b4 Qa4+ Nd7 Qd1 Nb8 a4 h6 Ra3 h5 Rf3 Bh6 Na3 Bf8 Nc2 Ra6 Ne3 gxf3 g4 Ra5 g5 Ra8 Ng4 hxg4 Kf2 Kd7 d4 Kc6 e4 b5 g6 f5 e5 Kd5 h3 Ke4 e6 c5 e7 b3 e8B b2 g7 b1Q d5 c3 a5 c2 a6 g3+ Ke1 c4 Kd2 c3+ Ke1 g2 Kf2 b4 a7 b3 Ne2 g1B+ Ke1 b2 Bg2 Rh5 Bf7 Bfc5 Rh2 Na6 Bf1 Qa2 Bd2 Kd3 Be8 b1B Rh1 c1B Ba4 c2 Be8 Nf6 g8Q Nd7 Qf8 Nc7 Qh8 Qa3 Qb2 Ne5 Qb4 Nb5 Bc6 Qh8 Bg2 f2+ Kf1 Bb2 Bf3 c1R Kg2 Bbd4 Ng3 Rc4 Rh2 f1B+ Kh1 Bdf2 Bg2 f3 Qa5 f4 Qaa4 Bg4 Qa5 Bb6 Qe1 Kc2 Ne4 Bd3 Bf1 Kb2 Qe2 Bbc2 Bb7 Kb1 Qa4 Bbe3 Nf6 Be4 Ba5 Bcd3 Bb4 Be1 Bf8 f2+ Rg2 f3 Qd2 Rcc8 Qe2 Nd7 Rh2 Bc4 Bg2 f1Q Bb4 f2 Bf3 Bcd3 Rg2 Rc4 Rg3 Be6 Rg8 Bg4 Re8 Ne5 Qb3+ Ka1 Qbc2 Bd4 Qcd2 Kb1 Qf4 Bb6 Qed2 Qe2 Kg2 Qe3 Qf5 Qg5 Kg3 Qgg8 Bd1 Bh1 Ne4 f1Q+ Qff2 Bc5 Bb3 Bgf3+ Kf4 Qe2 Qg2 Bef2 Qf1+ Qe1 Qde2 Rd8 a8Q Rd7 Bc6 Ra7 Bb7 Ra4 Qa6 Ba7 Qd1+
q1B5/2R3n1/1nqR1Q2/1rP4Q/qqrQ1r2/bPn3K1/4rn2/rbRNk3 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Ra3 g4 Ra2 exf6 Ra3 f5 Ra1 f4 Be3 h5 Kd2 Qb6 Nc3 Qd8 Bf2 Be7 Nd5 Bf8 Ne3 g3 Ng4 gxf2 Nh6 Be7 g4 Bc5 g5 Bf8 Ng4 hxg4 h4 Ke7 e4 Kd6 Ke2 Kc5 c4 Kb4 h5 d5 b3 Kc3 h6 a5 h7 f5 g6 a3 e5 g3 Kf3 a4 e6 a2 e7 a3 e8Q d3 g7 d2 Be2 f1R+ Kg2 d4 Qh5 d3 Rb1 a1Q Qf7 a2 Rb2 f3+ Kh3 f2 Qd7 g2 Rb1 f4 Bg4 f3 Bh5 Ra5 Be8 Ba3 c5 Re1 Kg4 f1Q Qf5 f2 Rh2 Re2 Rh1 Nh6+ Kh3 Qe1 g8Q f1R Bc6 Rb5 Qf8 Rf4 Nf3 g1Q Ng5 Nd7 Q5f7 Nf5 Rb2 Nb6 Qb1 d1N Qd5 d2 Qdd6 Ng7+ Qbf5 Bd7 Bd5 Qa8 Be6 Qa4 Qg4 Nf2+ Kh4 d1N Rd2 Bc8 Nh3 Qg2 Rf1 Qb7 Kg3 Qc6 Qh5 Rc4 Qfe7 Rf8 h8R Rff4 Rh7 Qaa8 Bg4 Bf5 Qed7 Bb1 Qf6+ Re5 Rd4 Re2 Rd6+ Kc2 Qdd8 Qb4 Bc8 Qd4 Rg1 Nc3 Rc1+ Kd2 Qh8 a1R Qhd8 Ng4 Nf2 Qba4 Nd1 Ke1 Qd7 Nf2 Qdd8 Ne6 Ra7 Ng7 Rc7 Qde4 Qd4 Qb4 Q8f6 Qee8 Be6 Qaa4 Bd7 Qea8 Bc8
k1Br1r1r/2r5/r1BN3P/1Q1qn1b1/4pB1Q/Pn1n1b1b/6QR/1q1b1K2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 f4 f5 b4 a5 e4 axb4 a3 fxe4 f5 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 g5 h5 Rb1 Qc7 Rb3 Qa5 Rg3 Qd8 Rg4 hxg4 h4 e5 c4 b5 f6 d5 g6 Kd7 f7 Kc7 h5 Kb7 c5 e3 g7 e4 h6 b3 Qe2 b4 Qc2 e2 Qb1 b2 Bg2 g3 Qc2 b1R Rh2 d3 Rh3 f3 Qa4 b3 Bh1 b2 Qd4 f2+ Kd2 f1R Qf2 e1N Rh2 d4 Kd1 g2 Qh4 d2 Ke2 d1B+ Kd2 d3 Qe7+ Nd7 Rh4 Ra6 c6+ Ka8 c7 Bf3 Qb4 Ne7 g8Q Ng6 Rh2 Nc5 Ne2 g1R Nc3 Qd5 Nb5 Ne5 Nd6 Rg7 Qb5 Be7 f8Q Bg5+ Qf4 Nb3+ Ke3 d2 Bg2 d1B Bh3 Rf2 Bd7 N1d3 Be8 Bh3 c8B Rd7 Qg6 Rd8 Bc6+ Ka7 Bd2 Rc1 Qg8 b1Q Qg7+ Be7 Qh4 Rf1 Qg2 Rc4 Be1 Rc3 Bg3 Bg5+ Bf4 Rf2 Be8 Rc7 Bed7 Ka8 Be8 Rd2 Bed7 Rdf8 Be8 Nb2 Bed7 Rd4 Kf2 Nbd3+ Kf1 Qc4 Nb7 Qf7 Be8 Rd8 Bc6 Qd5 Nd6+
B1rN1nrb/8/B4pk1/K1n1Pqr1/2r1b3/bR1pB3/4Pq1Q/3Q1rQn b - - 0 1 illegal: Other
1bb1b1q1/1BPk3r/1pr1Pq2/qq2r1p1/2n4B/2n2B1N/1n3K2/1Q2Q1QR b - - 0 1 illegal: No possible last move
1k3q1R/2pB1b2/1r3P1p/1n2bPq1/4n1qQ/R1r2QN1/4R1q1/Kbr2Qn1 b - - 0 1 illegal: Other
Nb1r4/1P2b2k/r7/bbQnRBRr/bn6/4P1nb/RQpp1K1Q/7q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 exf6 Be3 f5 Bc1 f4 c4 d6 Be3 Bb7 d5 Ba6 Bd4 Bc8 Nd2 Nh6 Nb3 cxd4 c5 Ng8 c6 Nd7 Nc5 dxc5 Qd2 Nb8 Qd3 Nh6 Qd1 Ng8 b4 h5 g4 f5 e3 Kf7 c7 Kg7 g5 a5 g6 d3 d6 c4 d7 d2+ Kf2 h3 b5 f3 b6 h4 b7 c3 Bc4 c2 Ne2 a3 Qc1 a4 Qd1 a2 Qf1 h2 Qb1 a3 Rf1 h1N+ Kg1 f4 Bd3 h3 Qb5 f2+ Kh2 f3 Qg5 Nc6 Qe5+ Nf6 Rac1 a1B Rce1 a2 Qc5 Bc3 Qd4 a1B Be4 Ra6 Qd5 Ba5 Nd4 Nb4 Qh5 Ng3 Nb5 Be5 Ra1 Rg8 Rh1 f1B Ra2 f2 Qe2 Qe8 d8Q Bd7 c8Q Bb8 Nc7 Ba4 Na8 Qc6 Qd4 Be7 Qb2 Rd8 Qf5 Bg2 Qc5 f1B Kg1 Kg8 Qeh5 h2+ Kf2 Bfb5 g7 Bgf1 Bd3 Qe4 Qh3 Nfd5 Qg2 Kh7 g8R Nf5 Rg1 h1R Rg4 Rh4 Qh2 Qh1 Re4 Bh3 Re5 Rh5 Rg6 Ng3 Bf5 Rb6 Rg5+ Rg6 Bg4 Ra6 Bf5+
QnrBn3/2rnn3/3b1n2/Qq1N1Q1b/P1R4K/nk1p3p/2P4N/3rN1r1 b - - 0 1 illegal: Other
6NK/2Q1q1Q1/Q4b2/RPB2rb1/1rpqbPqb/3n3p/2n1Rrp1/2k3R1 b - - 0 1 illegal: No possible last move
3qRk1N/5pr1/1pb1nb1K/1p2B1Bn/3bQbrq/P4Qr1/B2P2n1/1Q6 b - - 0 1 legal: proof: c4 e5 g4 g5 f4 gxf4 b4 h5 b5 d5 a3 dxc4 g5 a6 Nc3 axb5 Nd5 f3 Nf4 exf4 Nh3 Qd6 Rg1 Nd7 Rg4 hxg4 Ng1 Nb8 Qc2 Rh6 Kf2 Ra6 Bh3 Qe5 Bb2 Qf5 Bg2 Rae6 Nh3 Rc6 Rh1 Rce6 Ng1 Qd5 Bc1 Qd8 Ke1 Rh8 Qd1 Ra6 Bf1 Ra8 Kf2 Rh3 e4 c5 e5 g3+ Ke1 b6 g6 c3 g7 f2+ Ke2 g2 e6 c4 e7 c2 Bb2 c1B Bd4 f3+ Ke3 Bd7 Kf4 Ra4 Kg5 c3 Qe2 c2 Bf6 Bb2 Qd1 c1R Qc2 Na6 Bc4 f1N Ne2 g1B Qb1 f2 Ba2 Nc7 Nf4 Ne3 Ng6 Rh7 h4 f1Q h5 Bc6 h6 Rc3 Rh4 Qe1 Re4 Ng2 Re2 Rg4+ Kh5 Rh8 h7 Rh3+ Bh4 Nf6+ Kh6 Nh5 Bg5 Rg8 h8B Qh4 Re6 Rhg3 Re5 Kd7 e8Q+ Kd6 Re2 Be3 Re1 Bf4 Qe2 Be7 Qf3 Bd4 Re2 Rf8 g8Q Kd7 Bf6 Ke8 Qh7 Rg8 Nh8 Kf8 Re5 Rg7 Qhe4 Ne8 Re6 Nc7 Be5 Bf6 Re7 Ne6 Re8+
1nNk4/4b1KB/1q2P2p/1Q1RnpN1/1Qrpb3/1bn2nr1/5NP1/n1Q4n b - - 0 1 legal: proof: d4 f5 e4 c5 h4 cxd4 b4 g5 a3 gxh4 e5 a5 Qd3 axb4 Qf3 Ra7 Qd1 Ra8 f4 Nf6 a4 Ra6 Ra3 Qc7 Re3 Ng8 Re4 fxe4 f5 Ra7 f6 Ra8 f7+ Kd8 Bg5 Qa5 Bf6 exf6 Qh5 Ke7 Qd1 Qd8 Kf2 d5 c4 b5 c5 b3 e6 b4 c6 d3 Ke3 h6 Kf4 d2 Kf5 d4 Kg6 f5 c7 h3 a5 b2 a6 e3 a7 h2 Qe2 d1B Nf3 b3 Nc3 b1N Ne4 b2 Ng3 Bb7 c8Q Qb6 Rg1 h1N Qd2 e2 Qd3 e1N Ng5 Na3 Be2 b1N Qb5 Be4 Qc1 Nc3 Bh5 Nf3 Re1 Kd8 Re3 Be7 Kg7 Bdc2 Bg6 Nf6 Bh7 Ng4 Re2 Re8 f8Q Bb3 Ra2 Nc2 Ra5 Bb4 Qfc5 Na1 Qcc4 Be7 Qcb4 Bec2 N3e4 Nge5 Nf2 Be4 Qe2 Rf8 Rc5 Rf6 Qeb5 Rg6+ Kh8 Nbd7 Rd5 Rc8 a8N Rc6 Qcf1 Rc4 Qc1 Qd6 Nb6 Nb8 Nc8 Rg7 Ngh3 Rg4 Ng5 Rg3 Rc5 Qc6 Kg7 Qb6 Rd5+
1q6/1R2nP2/2QP1n2/nr1pRrpB/p2b4/2qkp3/b1brQQRK/5N2 b - - 0 1 legal: proof: d4 b5 a4 bxa4 e4 g5 h4 gxh4 g4 d5 g5 f6 g6 c6 Bg5 fxg5 Nc3 dxe4 d5 Qb6 d6 Qd8 Nd5 cxd5 b4 Kd7 c4 Kc6 f4 h5 Kf2 a5 Kg2 e5 g7 e3 b5+ Kc5 b6 a3 f5 h3+ Kh2 h4 b7 a4 f6 a2 f7 e4 Qd2 e2 Bg2 e1Q Rc1 a1N Nf3 e3 Rc2 Ra5 Rf1 Bf5 Rb2 Nb3 Qc1 Nc6 b8R Nf6 g8Q Bc2 Rh1 Qc3 Ra8 Bg7 Qd2 Qb8 Rd1 Rb5 Qe2 Ne7 Rdb1 Na5 Nd2 Kd4 c5 Rh5 Qf2 Kd3 c6 Bb3 c7 Ba2 c8Q Bh8 Kh1 h2 Bf3 Rh7 Kg2 h1R Qa6 Rf1 Kh2 h3 Qe8 Rh4 Ra7 Rd4 Bh5 Bg7 Qec6 Bh8 Qg2 Rf5 Qf2 Bg7 Nf1 Bh8 Kg3 h2 Rc7 h1B Kh2 Bg7 Rc8 Bf3 Re8 Bd1 Re2 Bc2 Rb3 Ng6 Re5 Ne7 Qg1 Rdf4 Rg2 Rf2 Rb1 Rd2 Qf2 Bh8 Qa7 Rc5 Rb7 Rb5 Qaa6 Nh7 Re4 Bd4 Re5 Nf6 Qc8 Rf4 Qac6 Rf3 Qg4 Rf5 Qge2+
Q2rR1rb/1bB2n1p/k1p1p3/r2P1pq1/RbP5/1n1QN3/3Rn1p1/2Q1K3 b - - 0 1 legal: proof: g4 d5 h4 f5 b4 a5 e4 axb4 g5 dxe4 h5 Qd6 h6 Qxh6 Ba3 Qh3 Bc1 Qh2 f4 g6 Be2 Bh6 Bg4 Bg7 Nc3 Bf8 Nce2 Qh6 Ng3 fxg4 f5 Qh5 f6 Qh2 Nf5 gxf5 d4 Kd8 c4 b5 a4 e3 g6 c6 f7 Kc7 d5 Kb7 a5 b3 g7 b2 Qc2 b1R Kd1 g3 Qe4 e6 Qg4 b4 Ra3 e2+ Ke1 g2 Qf3 b3 Qg3 b2 Ra1 Qh4 Kd2 Ka6 Nh3 Nd7 Ke1 Nh6 g8Q Qg5 Ra4 Ra1 Nf2 b1N Qd3 Bb7 Ng4 Nc3 Ne3 Bb4 f8R Rd8 Re8 Nf7 Rh4 Ra3 Rd4 Nc5 Qg7 Rg8 Qh6 Nb3 Bd2 Ka7 a6 Kb6 a7 Ra2 a8Q Ra3 Kf2 e1B+ Kg1 Ra1 Bc1 Bd2 Kf2 Ne2 Ba3 Bbc3 Bd6 Bb4 Qh1 Bdc3 Qc1 Ra3 Re4 Bh8 Rd4 Nc3 Ke1 Ne2+ Qdc3 Ra1 Rd2 Ra2 Qd3 Ra3 Ra7 Ra5 Bh2 Rb5 Ra4 Ra5 Qb8 Ka6 Bc7 Bf6 Qc8 Bh8 Qa8+
2K2bB1/R1pP1R2/1pnRr1Pn/qb3NR1/pbr2bR1/7Q/nb3r1k/8 b - - 0 1 legal: proof: e4 d5 a4 g5 h4 gxh4 c4 dxc4 e5 b6 a5 f6 a6 fxe5 Ra2 e4 Ra3 Qd6 Ra1 Qd8 b4 Be6 b5 Nc6 Bb2 Nb8 Bc3 Bf5 Ba5 Bc8 Nc3 Nd7 Na4 bxa5 b6 Nb8 b7 Bg4 Nb6 axb6 Nf3 Bh3 Ng1 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Ke3 Kf5 f4 h5 d4 c3 g3 h3 d5 a4 a7 c2 d6 c1B+ Qd2 Kg4 d7 h4 f5 h2 f6 h3 f7 Qg5+ Kf2 e3+ Ke2 e4 Nf3 Nh6 Qd5 Nc6 b8R Bb2 Qd6 Ba6+ Qd3 Bb5 Rb7 Re8 a8R Re6 Rg1 h1N Rd1 h2 Ra5 Nf2 Rba7 h1R Nd4 Rh2 Nf5 Qh5 Rd2 Nd1+ Rg2 Kh3+ g4 Bd6 f8R Bf4 Rf7 Nc3+ Ke1 Rh7 g5 Na2 Rg4+ Rg2 g6 Kh2 Qa3 e2 Rd6 Rf2 Qe3 Qg5 Kd2 Rh8 Kc2 e1B+ Be2 Bd2 Bc4 Rh7 Qb3 e3 Kd3 e2 Qc3 e1B Qh8 Bfe5 Ke4 Bg7+ Kd5 Bf8 Qc3 Bf4 Qe3 Rg2 Qh3+ Kg1 Qg3 Ba6 Qc3 Bfc1 Re7 Rf7 Qh3 Ne5 Nd4 Rf4 Qg3 Ref6 Nc6 Bb4 Nd4 Bcd2 Qd3 Kh2 Bb3 Rgf2 Rc5 Nf3+ Kc6 Bdc1 Bg8 Re6 Rf7 Ne5+ Kd5 Re4 Rb5 Bf4 Qf3 Nd3+ Kc6 Qh5 Rc5 Bc4 Kb7 Ne5 Kc8 Nc6 Rcf5 Bf1 R5f6 Qb5 Rf5 Qa5 Rfg5 Bb5 Nf5 Rc4 Qh3+
1nN1b2q/PK4kq/p3q1Rr/p1P5/1n1pN1b1/1B4N1/1pq2b1r/2N2NQ1 b - - 0 1 illegal: No proof kernel
1r4rr/2QN1n1p/2nrP2k/rN1b2r1/Pp2p3/QN1Q2R1/qRnK4/8 b - - 0 1 legal: proof: d4 a5 c4 b5 b4 axb4 h4 c5 h5 cxd4 h6 gxh6 c5 h5 Rh2 h4 Rh3 Bh6 Rh1 Bf4 e4 f5 Rh3 Bc7 Bd3 e5 Be3 Bb6 cxb6 Ra7 Rh1 Ra8 Bc2 d3 Kf1 d2 Bd4 exd4 e5 Ne7 Bd3 Ng8 Be4 fxe4 Ke2 Kf7 g4 Kg7 f4 d5 a4 b3 e6 b2 b7 h3 f5 d3+ Ke3 d4+ Kf2 h2 g5 Qd5 g6 Kh6 g7 Qa2 f6 Nc6 b8N Bb7 f7 Ra5 Qb3 d1N+ Ke1 d2+ Ke2 Ne3 f8Q d1R Qd6 Nc2 Nf3 Rg1 Nc3 b1R Kd2 d3 Qba3 Rg5 Rg1 h1R Rg3 Rhg1 Nd7 Rb4 Rb1 Rg2+ Kd1 d2 Rb2 Rg1+ Ke2 d1R Qc7 Rd6 Nd2 N6d4+ Kf2 Bd5 Nb3 Nc6 Ke2 Ne5 Qb6 Nf7 Qc7 Ne7 g8Q Nc6 Qgd8 Rgg8 Rd3 R1g5 Kd2 Rc4 Rg3 b4 Nb5 Rc5 Qdc8 Ra8 Qa6 Rab8 N5d4 Ra5 Qd3 Raa8 Nb5 Ra7 Ne5 Ra5 Nd7
1r6/B2B3P/1r1Qp2P/n1Q1rp2/Q2N1N1p/2q1pNqk/q2p4/1n4bK b - - 0 1 illegal: No proof kernel
r2nb3/2RQ2r1/1P1Qr3/4P3/1Q2K3/bNkNn1Nq/n3bq2/1r2rRqr b - - 0 1 illegal: No possible last move
2n4b/2p1Qq1r/5nbb/3r1bB1/1K6/7n/BPQPNb1B/Nrb1b1Qk b - - 0 1 illegal: No proof kernel forced: bxDB
k4Q1K/5qr1/n1BqpP1R/1q2b1bR/1rB2P2/4QQ2/n1bBq2r/3b2r1 b - - 0 1 illegal: Other
1K6/N2BQ2n/1N1BN1rp/3q3P/1Qn1qpQ1/nrr3Pb/1b5k/n1nb4 b - - 0 1 legal: proof: c4 f5 e4 d5 a4 dxe4 b4 f4 b5 a6 Ra3 axb5 Rb3 bxc4 Rb2 c3 Rb5 g5 Rd5 Nh6 Rd3 Ng8 Re3 fxe3 f4 Nf6 h4 Ng4 f5 Nh6 Rh3 Ng8 Rf3 Qd4 Rf2 Qd8 Rf4 gxf4 Ke2 Kd7 d4 b5 a5 c5 h5 e5 g3 c4 f6 Ke6 f7 Kf5 a6 Kg4 a7 b4 d5 b3 d6 h6 d7 c2 Nf3 b2 Qe1 c3 Nd4 Nc6 Nb3 Ba3 f8N Na5 N3d2 Nf6 Nf3 Nc4 Ng5 Rg8 Ng6 Rb8 a8Q Rb3 Qa5 Nh7 Nf8 Rg6 Bd2 c1N+ Kd1 e2+ Kc2 e3 Qb4 e4 Qf2 e1N+ Kd1 Nc2 Nge6 Na1 Ke1 c2 Nc3 b1B Nb5 e2 Na7 Qa5 d8Q Qd5 Qde7 Bb2 Nd7 Ba2 Bg2 Bb1 Bh1 Kh3 Qf3 Kh2 Kf2 e1N Nb6 Ba2 Qg4 e3+ Kf1 e2+ Kf2 Bb1 Bc3 Ba2 Be5 Bb1 Bd6 Bd7 Nc7 Bf5 Ne6 Ba2 Qgg5 Bh3 Qg4 Bb1 Nac8 Qg5 Nd8 Na2 Na7 c1R Ne6 Rcc3 Bd5 Bc2 Bc6 Nc1 Ba4 Bd1 Bd7 Ned3+ Kf3 Ne1+ Ke4 Nec2 Qb5 N2a3 Qb4 e1Q+ Kd4 Ne5 Kd5 Nec4+ Kc6 Qd5+ Kc7 Qee4 Kb8
1rR2Qbr/n1qn1nrQ/1P6/6bK/1n1PQ1p1/2kp1N1R/q4NnN/6q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 c4 Be3 exf6 Bd2 f5 Bc1 f4 Bd2 d6 Bg2 Nh6 Be4 Qd7 Bd3 cxd3 c4 Be7 c5 Bf8 c6 Ng8 Bb4 Qd8 Bc5 dxc5 Kf2 Ke7 e4 Ke6 h4 a5 b4 g5 c7 f5 e5 Kd5 b5 Kc4 h5 a3 h6 g3+ Kf3 a4 h7 g4+ Kg2 a2 b6 f3+ Kf1 f4 e6 g2+ Kf2 a3 e7 Nc6 e8N Rb8 Qf1 Nh6 Qd1 Na7 Rh5 Nf7 Rg5 Bh6 Ne2 Be6 c8Q Qc7 Qf1 g1Q+ Ke1 f2+ Kd1 f3 Rh5 Bg5 Qe1 f1N Qd7 f2 Ng3 Ne3+ Kd2 f1R Rh3 Ng2+ Qe3 Kb3 Qd6 c4 Nf6 Rf3 Nf1 c3+ Kd1 c2+ Kd2 c1N Ne4 Rf6 Nh2 Rg6 Nf2 Rg7 Qf8 Bd5 Nc3 Kc4 Nce4 Be6 Rb1 a1N Rb2 a2 Rc2+ Kb3 Rc6 Nc2 Qf4 Qd6 Rc8 a1Q Qe3 Qc7 Qf4 Rhg8 h8Q Qa2 Qh7 Rh8 Qe3 Kb2 Qf4 Nb4 Qe3 Bh4 Ng5 Bd5 Qe1 Bc4 Ngf3 Nb3+ Kd1 Nc5 Kd2 Nd7 Qee4 Nf4 Ke3 Kc3 Qc6 Bd8 Ke4 Ng2 Kf5 Bg5 Qe4 Nd8 Qb7 Bg8 Qe4 Re7 Kg6 Rg7+ Kh5 Nf7 Qe2 Nb5 Qe6 Na7 Qe4
n3bnR1/p2qb3/4q1bK/q2P1Q1n/Qqr5/1Nr1k1Np/2R1Pq1R/4Q3 b - - 0 1 legal: proof: c4 e5 a4 b5 f4 bxa4 h4 exf4 b3 d5 h5 dxc4 Ba3 g6 Bc1 g5 g4 Qd6 Bb2 Qd7 Bd4 Qd5 Bf2 Qd8 Bh4 gxh4 g5 Ne7 g6 Qd3 g7 Qd7 Bg2 Ng8 Be4 Qd8 Bg6 hxg6 Kf2 Kd7 Kf3 Kc6 d4 Kd5 b4 f5 b5 c5 b6 c3 h6 g5 b7 c2 h7 c1Q Na3 c4 Rh2 c3 Nc4 c2 Na3 h3 Nc4 a3 Rf2 a2 Qf1 Qb2 Qd1 c1Q Ne5 Qc4 Nd3 Na6 b8Q Ne7 g8R Nc7 Rh2 g4+ Kf2 Ke4 Rc1 a1Q Rg6 f3 Kg3 f2 Kh4 f1N Kh5 g3 Qb4 f4 Qb5 g2 Qd2 f3 Qda5 f2 Rf6 Bd7 Ne5 Qbb4 Qa2 Qe6 d5 Ng6 Qd2 Be8 Qa6 Qdd7 Ngf3 g1Q Qh6 Rc8 Ng4 Na8 Qg5 Rc3 Ne3 Be7 Nf5 Nf8+ Rg6 Qaa3 Qb5 Qaa5 N3d4 Qg2 Qa4 Ng3+ Kh6 f1B Kg7 Qf3 Nb3 Qf2 Qd2 Bg2 Rc2 Bf3 Qe1 Bh5 Rg5 Bhf7 Rg6 Rg8+ Kh6 Nh5 Ng3+ Ke3 h8Q Rg7 Qh7 Rg8 Rf6 Rg4 Qf5 Rgc4 Rg6 Qdd6 Qf6 Qdd7 Rg8 Bg6 Qf5
4n3/4N3/R1Q3n1/1b2Pbr1/1nbQ1R1p/1r1bq2N/1PN2bkp/K1Q1b1q1 b - - 0 1 legal: proof: e4 e5 a4 c5 h4 g5 d4 exd4 a5 gxh4 a6 f5 e5 c4 Bd2 c3 Bb5 cxd2+ Kf1 bxa6 Ba4 a5 Bc6 a4 Be4 fxe4 Ke2 Kf7 f4 Ke6 c4 Kf5 c5 Kg4 g3 h5 f5 a5 c6 d5 c7 e3 Kd3+ e2 Kc2 d3+ Kc3 h3 f6 h2 f7 d4+ Kc4 h4 Qc2 d1B Qb3 e1B Nd2 a3 Nf1 d2 Qb4 a2 Qb7 d3 Kc3 a4 Nf3 Kh3 g4 a3 g5 Nd7 g6 Ngf6 g7 Bc2 g8Q d1B+ N3d2 Be2 Ng3 Rh5 Qg6 Bc5 f8N Ne8 Qh7 Rg5 Qe7 Bcf2 Ne6 Nf8 Rb1 a1Q Qd7 a2 Qbc6 Ng6 Rf1 Rb8 Qd4 Rb3+ Kc4 Qf6 Nf3 Kg2 Ng1+ Qf3 Nh3 Qe4 Nf5 d2+ Kc5 d1B Ne7 Bca6 c8Q Beb5 Rc1 Bde2 Q8c7 Be3 Rf4 B3f2 Rd1 Qc1 Qc8 Qe3 Ra1 Bg4 Q8c7 Bf5 Qc8 Bcd3 Q8c7 Rc3+ Kb4 Bbc4 Ka4 Rb3 Qc8 Rb7 Ka3 Bab5 Qdd7 Qc1 Nd4 Qb1 Nc2 Qf3 Qc5 Qe3 Qdd4 Rb6 Qb4 Qbc1 Qd2 Qd1 Qc1 Qg4 Rb1 a1N Qc6+ Kg3 Qd1 Ba4 Qc1 Rb3+ Ka2 Bab5 Nb4 Nc2 Ra1 Bde4 Kb1 Bed3 Re4 Kf3 Ra6 Qg1 Ka2 Kg2 Rf4+ Qf3 Nbd5 Nb4+ Ka1 Qe2 Ne3+ Kg3 Nc2 Qe3 Qcd7 Kg2 Qc6+
2KQ1qn1/2N3bN/8/P1RR2p1/bN1b1q2/QPn4k/pqrbR3/2rb1b2 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 g5 c5 g6 cxd4 Bg5 hxg6 Bf4 g5 Bc1 g4 b3 a4 Bb2 a3 Qc1 axb2 Qd2 Ra6 Qd1 Ra8 a4 Rh6 a5 Rh8 Bb5 b6 Ba4 b5 Ra3 bxa4 Ra2 Rh3 Ra1 Rh8 Ke2 Kf7 f4 Ke6 c4 Kf5 h4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 a3 h5 d3+ Kc3 d2 Kd4 a2 h6 g3 h7 e2 Rh2 Kg4 Ke5 g2 f5 d4 f6 d3 f7 e3 Rh1 Bg7+ Ke4 Nd7 Kd5 Qf8 Kc6 Ndf6 Qf1 e1Q Kb6 d1B Na3 b1Q Nf3 g1B Nc4 d2 Nb2 e2+ Nd4 Ne4 Nd3 Qh4 Rh2 e1B Re2 Bd7 Kb7 Nc3 c8R Ba4 Nb4 Qb2 Ne6 B1d4 Rc5 Rc8 Nc7 Qf2 Rc1 Qf4 Rd5 Bc2 Qf2 d1B Qe3 Bb1 Qe7 Bd3 Rcc2 Kh3 Rc1 Nb1 Rcc5 Bd2 Qd8 Nc3 Qe7 Nh6 Qd8 Rg8 h8Q Bdb5 Qh7 Rh8 Qg6 Ng8 Qgd6 Rh6 Q6e7 Rc6 Qed6 Qe8 f8N Bc4 Ree5 Bf1 Nh7 Qef8 Re2 Ne4 Rb5 Rc2 Rbc5 Rc1 Ne8 Rc6 Nc7 Nc3 Kc8 Ne4 Rb5 R6c2 Rbc5 Nc3 Qb6 Be8 Qb5 Bc6 Qa4 Be8 Qa3 Bb5 Nca6 Ba4 Nc7
7Q/1rR1nk1K/1P2Bb2/R1Rq3p/1n2p3/brQ1P3/bQ1n1r1b/1Bn2b2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 g5 bxa4 e3 f5 Kd2 f4 Nc3 f3 Nce2 fxe2 Bh3 h6 Bg2 Nc6 Bf1 Nb8 h4 Na6 g6 Rb8 Ke1 Nf6 Bd2 Bb7 Bb4 Ra8 Kd2 Nb8 Bd6 Bc8 Bf4 Ng8 Bg5 hxg5 h5 Qb6 h6 Qc7 h7 Qe5 Nf3 Qe6 Ne5 Qb6 Ng4 Qd8 Nh6 gxh6 Kd3 e1N+ Ke4 a5 Kf5 d5+ Ke5 a3 c4 d3 f4 a4 b4 g4 g7 g3 c5 a2 c6 g2 b5 g1B c7 h5 f5 d2 b6 d4 f6 d3 Qg4 d1B Rc1 a1N Qf5 d2 Bc4 a3 Qf2 a2 Qe2 Nc6+ Ke4 e5 Bd3 Bh3 c8R Nb4 R8c7 Rb8 Qf3 Bf1 Kf5 e4 Kg6 Bb3 Qf4 d1R Qg4 Bh2 Rg1 Rb7 Qh4 Qd5 R1c5 Rb1 Bc2 Nf3 Qe1 Nd2 Rg5 Ne7+ Kh6 Rg8 h8Q Kf7 Kh7 Bbc4 Qc1 Nab3 Qb2 a1B Qc3 Rb2 Bb1 Nc1 Rf5 Ba2 Rg5 Ke6 f7 Rb3 Ra5 Qd6 Rgc5 Qd5 Qc4 Bf6 Qc3 Nc8 Qb2 Bfd6 f8Q Ne7 Qe8 Rf8 Qc6 Kf7 Rc2 Nbd3 Qcc3 Ba3 g8B+ Ke8 Be6 Nb4 Bg4 Kf7 Qd3 Rg8 R2c5 Rg6 Bh3 Rg2 Qdc3 Rf2 Be6+
2qR2n1/2P4p/1b4R1/r4Bn1/P3b3/nkn1Q1n1/1BrB1rpQ/n2qQ1K1 b - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 b4 gxh4 g5 c5 b5 f5 b6 axb6 Bf4 b5 Nf3 b4 Ne5 Ra4 Rg1 Ra8 Ng4 fxg4 Bc1 Nc6 Nd2 Nb8 Nf3 d3 Nd4 cxd4 Rh1 Ke7 Rh3 Kf7 Rh1 Ke8 e4 Kf7 f4 Ke6 Kf2 d5 c4 b5 a4 d2 c5 d3 c6 h3 c7 b3 g6 g3+ Kg1 g2 g7 b4 e5 b2 Qf3 d1N Qe4 b1N Bd2 b3 Ba5 d4 Qe3 Kd5 e6 Kc4 e7 b2 e8Q Nd7 f5 Na3 f6 b1N f7 Ndc3 Qf2 Nc2 Qf5 h2+ Kf2 Kb3 Qf3 d2 Qg4 d1R Qh5 d3 Qee5 d2 Rg1 Ndf6 Qe7 Bb7 Qe1 Rc1 Bd3 d1Q Rf1 h1N+ Kg1 Nfe4 Qh2 Ng5 Rf6 Qc8 Bf5 Ng3 Rg6 Nba3 Bb4 Bd6 f8B Ra5 Be7 Ba8 Bf6 Be4 Ra2 Na1 Rd2 Bf8 Rd8 Rc2 Be5 Bc5+ Bd4 Na2 Bc3 Bb6 Bd2 Rac5 Bb2 Nc3 Qh3 Nd5 Qh5 Nc3 Qf3 Ra5+ Qf2 Nh6 Qe3 Rf8 g8Q+ Rf7 Qg7 Ng8 Qh6 Rf6 Qh2 Rf8 Bh3 Rf2 Bf5
b2q3R/N3q3/nbnr4/4qQb1/1NR1p1PP/1r1b1QpQ/1qr2RK1/2k5 b - - 0 1 legal: proof: d4 a5 g4 h5 e4 c5 b4 cxd4 f4 axb4 f5 h4 e5 g6 Bd3 f6 Bf4 fxe5 Bg3 hxg3 f6 e4 Bc4 Qc7 Be6 Qd8 Bf5 gxf5 Kf1 Kf7 a4 Ke6 c4 Ke5 h4 Kf4 a5 Ke3 f7 b5 c5 d5 c6 e5 a6 b3 c7 f4 a7 b2 Qc2 d3 Ra2 d4 Nd2 b1Q+ Qd1 b4 Ra4 b3 Ndf3 b2 Rc4 d2 Ne2 d3 Qc1 Ne7 Rc6 Bb7 c8Q Bh6 f8Q Qa1 Nfg1 b1Q Qf7 f3 Rh2 f2 Qb3 Bg5 Rc7 Qbb2 Rc6 Na6 Rh6 Nc6 Nf3 Rb8 a8R Qe7 Kg2 f1B+ Kg1 Rh7 Qe1 d1R Qf7 d2 Ra7 Ba8 Qff8 Rb3 Qf7 Kd3 Nfd4 e3 Kh1 e4 Nb5 Kc2 Nec3 e2 Rc7 Kc1 Na7 Qa5 Qce6 Qe5 Qf3 Rh8 Qef2 e1B Qef5 Rc8 Q2g2 Bf2 Nd5 Bb6 Nb4 Bd3+ Qgf1 Rd8 Rh7 Rd6 Rh8 Re1 Rg2 d1Q Rf2 Re2 Kg2 Rc2 Qh1 Na5 Rc4 Nc6 Qh3 Qd2 Nd5 Qa5 Nb4 Qad5 Qd7 Qg8 Qc8 Qgd8 Qcf5
1NQ2K2/3Q4/bP2qn2/rq2qn1r/3Q1brB/p2N1p1P/3Nq2k/1B2rn2 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Ra3 g4 Ra2 exf6 Ra3 f5 Ra1 f4 b4 Qa5 h3 Qd8 Ra3 h5 Rf3 Qg5 g3 Qd8 Rh2 Qb6 Rg2 gxf3 g4 Qc7 g5 Qd8 Rg4 hxg4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 a5 e4 d5+ Kb5 g3 c4 d3 c5 a3 g6 d4 c6 a2 c7 a1Q g7 d2 Kc4 g2 b5 f2 b6 a4 Ba3 f3 Bb4 Kf4 e5 Kg3 e6 a3 e7 d3 Kc5 f4 Qc2 d1R Qa2 d2 Ba6 f1N Qb2 f2 Qd4 f3 Bc4 Nf6 g8Q+ Kh2 Bd3 Rh5+ Qgd5 Qd7 Ba5 Nc6 Ne2 g1R Nf4 Bh6 e8N Ba6 c8Q Rg4 Nc7 Ne7 Bf5 Ra7 Nd3 Qe6 Qdd7 Re1 Bc3 d1Q Nd2 Qde2 Bb4 Bb5 Na6 Bf4 Nb8 Ba6 Bc3 Nfd5 Bg6 Nf5 Bh7 Nf6 Bb4 Qe8 Kc6 Q8e5 Be7 Qa2 Bd8 Nd5 Bh4 Nf6 Q7d6 Ra8 Kc7 Qae6 Kd8 Bc4 Qdd7 Ra5 Bg6 Ba6 Qe7 Ng8 Ke8 Nf6+ Kf8 N1e3 Nc5 f1Q Qed7 Qb5 Bh7 Qfe2 Nd3 Nf1 Nb4 Ng7 Bb1 Nf5 Nd3
8/Q1Nr2b1/1bP3pR/qQp4r/1nN1R3/2b5/P1n1prbN/1K1kbRn1 b - - 0 1 illegal: No proof kernel
K1k2nnn/1NpQ3b/Pp6/5N2/1nrr2bn/1p2q2B/1Q3BP1/Q1bBr3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 a4 e5 d4 d5 Ra2 dxc4 d5 Bd6 Ra3 Bf8 Rd3 f6 Rd4 exd4 e5 f5 Rh3 Bg7 Re3 Bf8 Re4 fxe4 Kd2 Kd7 f4 h5 a5 d3 Ke3 b6 Kd4 h3 d6 h2 Kd5 h1N f5 b3 a6 e3 f6 c3 f7 h4 Bd2 h3 Qe1 h2 Qf2 e2 Qc5 e1N Na3 c2 Nh3 c1N Nc2 Nf2 Bf4 h1R Qa3 d2 Qb2 d1B Nd4 Ncd3 Ng5 R8h4 Nf5 Ne4 Be3 Bg4 Ne6 Qe7 Bf2 Bh6 f8Q Nf3 Nd8 Neg5 Qg7 Nf7 Be2 Re1 Bd1 Bc1 Nb7 Qg5 Qf6 Nh8 Qa1 Qe3 e6+ Ke8 e7 Nd7 Kc6 Nf8 Qfb2 Nb4+ Kb5 Kd7 e8B+ Ke6 Bg6 Kd7 Bf7 Bh5 Bd5 Rc4 Be4 Bg4 Bc6+ Ke6 d7 Nh4 d8Q Rb8 Qd3 Bd7 Qdd2 Rd8 Qdd4 Be8 Qg7 Rdd4 Qd7+ Ke5 Bd5 Bg6 Be6 Bh7 Nc5 Nd3 Kc6 Nb4+ Kb7 Kf6 Ka8 Ke5 Qd6+ Kf6 Bd7+ Kf7 Be6+ Ke8 Bd7+ Kd8 Be6+ Nd7 Nb7+ Kc8 Nh6 Bf3 Bh3 Bg4 Nf5 Nf8 Qd7+
K2n1QNb/6k1/nPpQ4/Br4qP/7B/1N1r2p1/nNBqbq1p/2r3r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 d5 h5 dxc4 Ra2 e5 Ra1 exf4 b4 h6 g4 Ne7 Rh4 Ng8 Ra3 Ne7 Rg3 gxh4 g5 Ng8 g6 Kd7 Rg4 Ke8 Rg5 hxg5 Kf2 f5 Kf3 a5 d4 c3 e4 h3 b5 c6 d5 h2 d6 g4+ Kg2 g3 Kf3 a3 g7 Kf7 b6 a4 e5 a2 d7 a1R Qd4 a3 Bb5 a2 Ba6 c2 Qc3 Nh6 g8N Kg7 Bb7 Qg5 d8B Na6 Qb2 Nf7 Bd2 c1N Be7 Nd8 Nc3 Be6 Be1 Bc4 e6 Bf1 Qa3 Be2+ Kg2 Rh7 Na4 f3+ Kh3 f4 Nb2 f2 Ba5 f1R Qd6 f3 Bc8 f2 Nf3 Rb1 Nd4 a1Q Nb3 Na2 Kg2 Qd2 Bh4 Rbc1 e7 Rg1+ Kh3 Qb1 e8Q Qg6 Bf5 Qgg5 Bb1 Be7 Bc2 Bf6 Qef8+ Kh8 Qf4 Rd7 Q8d6 Kg7 Qf3 Qh6 Kg4 f1Q Kf5 Qhg5+ Ke4 Qf2 Qf5 Be7 Ke5 Bf8 Qa3 Rd3 Qd6 Nf7+ Ke6 Nd8+ Kd7 Be7 Qf3 Bf6 Qf5 Ra7+ Kc8 Re7 Qf3 Re5 Qf4 Rb5 Qf5 Ne6 Kb7 Nd8+ Ka7 Kf7 Qfc5 Bh8 Ka8 Kg7 Qb4 Bf1 Qbf4 Be2 Qff8+
4rNQ1/pq4BP/Brqp2B1/4r2N/1Nb1QK1b/5n2/knpP4/rb3n2 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 g4 h5 h4 hxg4 b4 c6 Rh3 bxa4 b5 c5 Rc3 Qc7 Raa3 Qa5 Rd3 Qd8 Rd4 cxd4 Rc3 dxc3 Kf2 Ke7 e4 Ke6 c5 g5 e5 Kd5 b6 f5 b7 a3 h5 a2 c6 a1R e6 g3+ Kf3 g4+ Ke2 Kc4 c7 d6 e7 g2 e8B g3 h6 Qd7 h7 Nf6 Qe1 Kb3 Kf3 Be7 Qd1+ Ka2 Qe1 Na6 b8Q Nc5 Bd3 Ng4 Bb2 Ne5+ Ke2 f3+ Ke3 f4+ Kd4 f2 Qe2 f1N Bb5 f3 Qe4 f2 Qg6 Bh4 Be2 Na4 Ke4 Qc6+ Kf4 Nf3 Qc2 Bf5 Bh5 Re8 c8N Re5 Nh3 g1Q Bg6 g2 Qe4 Qh1 Na3 g1R Nb6 Rg3 Qf8 Rae8 Nd7 Rg5 Nc2 Rg1 Bc1 Nb2 Ba6 Rg5 Qg7 Rb5 Nf8 Rb6 Qb4 Bd3 Qe4 Rge5 Qh8 Qg2 Qg8+ Bc4 Bh5 Qg7 Bg6 Qgb7 Nb4+ Ka3 Ne6 c2 Nf8 Ba2 Ng5 Bb1 Nge6 Kb3 Ng7+ Ka3 Nd5 Ka2 Nh5 Na4 Ba3 Nb2 Bc5 N1h2 Be3 f1B Bd4 Bc4 Bc3 Nf1 Bd4 R5e6 Bg7 Re5 Nb4+
kq2N3/qr2rp1K/bN3pn1/Pb6/3Q3p/1q2b1N1/nR1p1P1n/2QR1R2 b - - 0 1 legal: proof: h4 a5 b4 axb4 d4 c5 h5 cxd4 h6 gxh6 e3 h5 Qf3 h4 Qg4 Qc7 Qd1 Qd8 a3 Ra7 Bc4 Ra8 Ba2 b3 Qe2 bxa2 Qh5 Bh6 Qd1 Bf8 Bd2 Qa5 Bb4 Qg5 Bd6 Qf6 Be5 Qb6 Bg7 Qd8 Bf6 exf6 Kd2 h5 Kd3 d5 g4 Kd7 c4 Kc7 a4 b5 g5 Kb7 c5 h3 g6 h2 g7 b4 e4 b3 e5 b2 e6 h4 e7 Ra7 e8N Na6 c6+ Ka8 c7 Rb7 Nf3 Nb4+ Ke2 d3+ Ke3 d4+ Kf4 d2 Ne1 d3 Nc3 b1Q Qc2 d1B Nd5 d2 Qc3 Qb3 Qd4 Be2 Rf1 h1N Rd1 a1Q Nd3 Ng3 Nc1 Bb5 Ne2 Ne7 g8R Na2 Rg4 Rh5 a5 Re5 Rg8 Bh6+ Rg5 Re6 Kg4 Ng6 Rh5 Be3 Nb6+ Ka7 Rh8 Qc1 Rh5 Qc5 Rd5 Qce7 Rc5 Qdd6 Rc2 Qed7 Rb2 Qdb4 Rh1 Nf1 Kh5 Re7 Ng3 Nh2 Rhf1 Qbd6 Qf4 Qdb4 Kh6 Qdd4 Kh7 Qdc5 Nc4 Ka8 Qd4 Qa7 Qb6 Rb8 Qd4 Bca6 c8Q Qd6 Qc6+ Rbb7 Qcc5 Qdb8 Qa3 Qb4 Qac3 Qa4 Qc1 Qb3 Nb6+
b2B3k/1BR2r2/r1BqP2p/p3Pp2/2n1RQ2/2q1r3/Kp2q3/b2Q1rnQ b - - 0 1 illegal: Other
2q3bn/4rP2/1r3N2/b4p2/KQR1p1nr/pRPb2p1/1krb2NQ/6NR b - - 0 1 illegal: No possible last move
6q1/nQ2rn2/1Pb2brB/2k3Qb/6NK/b1P1b1n1/RQ2nrQ1/3Nq3 b - - 0 1 legal: proof: d4 g5 b4 c5 f4 cxd4 h4 gxh4 a3 b5 c3 e5 e3 exf4 Ra2 d3 Rc2 dxc2 Bb2 c1B a4 d5 Bd3 d4 Bc2 d3 axb5 dxc2 Kf2 Ke7 g4 a5 g5 h5 b6 f5 e4 a4 e5 h3 b7 h2 e6 f3 Kg3 h4+ Kh3 f4 g6 a3 b5 f2 b6 f1R g7 a2 Qg4 Kd6 e7 a1Q e8Q f3 Na3 f2 Qge6+ Kc5 Qg4 Be3 Nf3 c1B Qgd7 Nc6 b8Q Be7 Nd4 Rh7 Nac2 Nh6 g8Q Nf7 Qe6 Na7 Nf5 Bf6 Rg1 h1N Nfd4 Ng3 Nf3 Ne2 Kg4 h3 Qb7 h2 Ne5 h1B Qg5 Bc6 Qeg8 Rb8 Q8g6 Qg8 Rg2 Rh6 Qe4 Rg6 Kh4 Qb1 Qa2 Bg4 Rh2 Bh5 Qg2 Re8 Qa1 Re7 Ng4+ Kc4 Ba3 Bb2 Bb4 Ba3 Qb2 Qe1 Bd6 Bd2 Be5 Kc5 Nce3 Bc1 Nd1 Be3 Qd7 Rh1 Qb7 f1N+ Qf2 Nfg3 Qg2 Rf1 Bf4+ Be5 Qf6 B5d4 Bh6 Rf2 Qg5+ Rf5 Qf2 Nf4 Qbc2 Bh8 Qf3 Bf6 Rd2 Nfe2 Qg2 Ba4 Qc1 Bd7 Ra2 Bc6 Ne5 Rf3 Qb2 Rf2 Ng4+
qbr3b1/1r1Q2k1/R1Q1qn2/7R/Qp3P2/p6b/P1n1rQN1/B1Kb1n2 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 a5 c4 g5 c5 gxh4 Bc4 c6 b5 cxb5 Qg4 bxc4 Nc3 f5 Nxe4 fxe4 Qd1 a4 g4 Kf7 d4 e5 Kd2 b5 f4 h5 d5 a3 d6 b4 d7 e3+ Kc2 e2 c6 e1R c7 h3 g5 c3 g6+ Kg7 Be3 h4 Ba7 h2 Be3 h3 Bd4 Nf6 Rb1 e4 Qg4 e3 Rb2 e2 Qf5 Ra7 Qg4 Rb7 Bc5 Nc6 Qf3 Bd6 Qe3 Nd4+ Kd3 c2 Kd2 c1N Nf3 Nc2 Qf2 Qg8 Rg1 h1B d8Q h2 Bd4 Bh3 c8Q Bb8 Nh4 Bd5 Qc6 h1B Ng2 Bf7 Qdd7 Nb3+ Kd3 Qd8 Rb1 Qg8 Ba1 Nd2 Rb3 Qe8 Rc3 Qf8 Rc5 Nf1 Rh5 Qc8 Qa4 Re8 Qac6 Rc1 Qa4 e1Q Qac6 Qe6 Qa4 Nh2 Kd2 Re1 Qac6 Re2+ Kc1 Rd8 Rd1 Nf1 Rd6 Rg8 Qa4 Rh8 Ra6 Qcc6 Nh4 Bf3 Ng2 Qcd5 Qdc6 Rc8 Qd7 Kg8 g7 Qa5 Rc6 Qa8 Ra6 Bfg4 Rc5 Kh7 g8Q+ Kh6 Qgd8 Kg7 Qdc6 Bg8 Rf5 Rd2 Rfa5 Bd1 Rh5 Re2 Qdd7+
3Q1rB1/1rqrnq2/1qr3R1/3p3B/2k1pPB1/b3b3/N3B2P/1n2K1Qb b - - 0 1 legal: proof: d4 b5 b4 c5 e4 cxd4 e5 f5 a4 e6 axb5 Kf7 Ra3 Ke8 Rg3 d3 Qg4 Qa5 Qe4 Qd8 Qd5 exd5 Rg4 d4 f3 g5 Re4 fxe4 Be3 g4 Bf2 g3 Kd1 gxf2 g4 h5 g5 Rh7 Na3 Rh6 Nc4 Rh7 Ne3 Rh8 Ng4 hxg4 c4 Ke7 c5 Ke6 c6 Kd5 g6 a5 g7 g3 b6 g2 b5 d2 c7 a4 e6 a3 e7 a2 e8B a1R+ Ke2 d1R b7 d3+ Ke3 d2 Ke2 Kc4 b6 Rab1 Bh5 Ne7 g8B+ Nd5 Bg4 Rh6 Bh5 Ba3 Bh7 Nc6 b8Q Nce7 b7 Rc6 Nh3 g1B Nf4 d6 Bg8 Bg4 c8B Qc7 Bf5 Rb3 Qa7 Rf8 b8Q Rb7 Bhf7 Bh3 Bh5 Bg2 Qd8 Qb6 Bgh7 Qc7 Nd3 Nc3+ Ke3 Nb1 Ke2 d5 Bg8 Rc1 Bfg4 d1Q+ Ke3 Qe1+ Be2 Qea5 Qb6 Rd6 Qa7 Rd7 Nb4+ Kb3 Qd4 Qab6 Na2 Rc6 Qc5 Nc3 Kd2 f1Q Qd4 Bf2 Rg1 Bh1 Qg7 Bfc5 Qg6 Qf2 Rg3 Nb1+ Kd1 Be3 f4 Qg2 Ke1 Qh3 Bgf3 Qf5 Qg7 Qf6 Rg6 Qf7 Qd4 Bec1 Qg1 Be3 Nc1+ Kc3 Bfg4 Kb4 Na2+ Kb3 Bd1+ Kc4 Bde2+
Nb6/N1qq1N2/K3p2P/1RP1Br2/nb1Q3p/2b1b3/2q2Qb1/k1Nb3r b - - 0 1 legal: proof: c4 c5 b4 f5 d4 g5 e4 fxe4 h4 a6 b5 axb5 Qe2 Na6 Qg4 bxc4 Qd1 c3 Qc2 c4 Qd1 Nc5 dxc5 Bh6 Nh3 Bg7 Ng1 Bf8 g4 Bg7 a4 Bd4 h5 Rb8 Rh4 gxh4 g5 Nh6 g6 Be5 Bh3 Bg7 Bf5 Bf8 g7 Ra8 Bg6+ hxg6 Ra2 Qc7 Re2 Qa5 Re3 Qc7 Rh3 Qd8 Rh1 Ng8 Ke2 Kf7 f4 Ke6 h6 d5 f5+ Ke5 a5 b5 f6 d4 a6 d3+ Ke3 g5 a7 b4 f7 g4 Nh3 b3 Bd2 g3 Qc1 c2 Rd1 g2 Ba5 g1B+ Kd2 Kd4 Bc7 b2 Nf4 e3+ Ke1 e6 Nd2 Kc3 Qb1 c1Q Qa1 e2 Nf3 Bh2 Kf2 e1B+ Kf1 d2 Ke2 Qc2 Ng5 Ne7 g8N Nd5 Bb6 Qc7 Qb1 Bb7 Qa2 b1Q Nfh3 Qb5 Nf2 Bg7 f8Q Qbd7 Qa4 Kb2 Nf7 c3 Ne7 Rd8 Ba5 Nb6 a8N Bg2 Qd4 Na4 Nc8 Rh7 Rc1 d1B+ Ke3 Ka2 Rb1 Bh8 Rb2+ Ka1 Na7 Rg7 Rb7 Rg5 Nd3 Rf5 Rb5 Bg7 Nc1 Bhe5 Qfd6 Rf8 Bb6 Rf1 Qd2 Rh1 Q6d4 Bh2 Qf2 Bge5 Ng5 Rf5 Nf7 Qb2 Kd3 c2 Kc4 Qcc8 Bc7 Bb4 Qdd2 Bec3 Rb8 Qcd8 Qdd4 Q8c8 Nd3 c1B Rb6 B1d2 Nc1 Qc2 Bf4 Be3 Rb8 Qdd8 Kb5 Qcd7+ Ka6 Bg3 Rb5 Bh2 Bg5 Bb8 Bf4 Q8c7 Be5
q6r/2BqNQQq/n3k3/qpn1r3/1PbQ3p/2n3Q1/1R3P1q/n1K4R b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 g5 e5 gxh4 a5 Bh6 e6 fxe6 Bd3 e5 Bf1 e4 b4 Bf4 Be3 Bc7 Nh3 Bb6 axb6 a5 Bh6 a4 Ng1 a3 Nc3 a2 Na4 Rxa4 Bc1 Ra8 Bc4 Nf6 Bg8 Nxg8 Kd2 Kf7 c4 h5 g4 e5 g5 d5 c5 e3+ Kc2 h3 g6+ Ke6 c6 h2 c7 d3+ Kb2 e2 b7 e1Q g7 e4 Nh3 d2 Qe2 d1Q Rg1 h1Q Bh6 h4 Be3 d4 Rg3 d3 Rg1 d2 Rg5 Na6 b8Q Qh2 Rg2 Nf6 Bc5 e3 Qd3 e2 Qd4 Qeh1 Rg3 e1Q Bb6 Qee4 Rb3 Qh7 Rc1 Bd7 c8Q a1N Bc7 Ne4 Qcb7 Nec5 Q8a7 Be8 g8Q+ Bf7 Qg3 Qd7 Qbf3 Rae8 Qh5 Qa8 Nf4+ Ke7 Qhf3 Bc4 Ng6+ Ke6 Ne7 Qdg1 Rb1 d1N+ Kc1 Qgg2 Qff4 Nc3 R3b2 Qgb7 Qf8 Qb6 Qfg7 Qa5 Kd2 Ref8 Rh1 Rf5 Kc1 Re5 Qb7 Rg8 Qbf3 Rh8 Qff7#
4b3/1b3B1p/1Q6/r1nq1nNQ/1rP2kbR/1QPpB2p/nn1n3K/5Q2 b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 a4 gxh4 Kf2 a5 Ke1 axb4 Na3 c5 Ra2 Bg7 c4 Bc3 Rb2 bxa3 Rb4 cxb4 dxc3 Qg5 Bb2 Qf6 Bc1 Qd8 Kf2 Ke7 g4 Kf6 Kg2 Kg5 e4 b5 a5 d5 e5 f5 e6 h3+ Kh2 b3 e7 b2 e8Q b1N a6 d4 a7 b4 Qe3 b3 Qe4 a2 Qee1 a1N Qe4 b2 Qe3 Nc2 Qf2 Ne7 Qfd2 Qd5 Q1e1 Bb7 Qde2 Na6 Qe6 Nd2 Bd3 b1B Qc8 f3 Qd7 f2 Qa4 f1B Nf3+ Kf4 g5 Nc5 g6 Rhb8 g7 Be2 g8Q Nb4 Qd8 Na2 Ng5 Bg4 Rg1 Bc2 Be2 d3 Qb6 Bd1 Qa3 Ba4 Qab3 Be8 Ba3 Na4 Qeb1 Ne4 Bc5 Nb2 Bf2 Nc5 Bd1 Ke5 Be2 f4 Qf1 f3 Rg2 Kf4 Bd1 Bgh5 Rg3 Nf5 Rg4+ Ke5 Rh4 Bg4 Qg6 Kf4 Qh5 Bbc6 Be2 Rb4 Bd1 Bb7 Be2 Rb8 a8Q Rd8 Qa6 Ra8 Qb6 Ra5 Bg1 f2 Bf3 Qd6 Bd5 Qc6 Bg8 Qd5 Bf7 Nd1 Qg2 f1N+ Kh1 Bc8 Bf2 Nd2 Kh2 Nb2 Qf1 Bb7 Be3+
3b4/2nRPR1b/qn4b1/2RBn3/q2Prn2/2r1NqQ1/nn4Rr/K1k2Q2 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 c5 axb4 c6 g5 Qc2 g4 Kd1 g3 Ke1 dxc6 Qb3 c5 Qd1 c4 Bb2 h5 Bd4 Ke7 Bf2 Qe8 Qa4 gxf2+ Kd1 Bg7 g4 Bf8 Kc1 Qd8 Qd1 Ke8 g5 Nf6 Na3 Qd3 Nc2 Qd8 Ne3 Ng8 Ng4 hxg4 Kb1 Ke7 a4 Ke6 d4 Kd5 h4 Ke4 h5 Ke3 a5 f5 g6 c5 h6 b5 g7 b3 a6 g3 h7 g2 a7 b2 Rh2 c3 Nf3 g1N Ne5 c4 Qb3 Kd2 e4 c2+ Ka2 c1R Bd3 b1B+ Kb2 b4 Ng6 f3 e5 f4 e6 Nf6 g8Q Rc3 Ra4 Ng4 Ra6 Nd7 Ra3 Nh3 Qa2 b3 Bf5 Qa5 Bd3 Be7 Be4 Bd8 Bc6 Qa4 Qe8 Nb6 Bb7 Ne5 Rh1 f1Q Qf7 f2 Qg8 f3 Bc6 Nf4 Ka1+ Kc1 Nf8 Bg6 Qe2 b2+ Ka2 b1N Bd7 Nd2 Bc6 Qfd1 Rh4 f1Q Rh2 f2 Bd5 Ba6 Qd3 Qf3 Nd7 Q1e2 Ka1 f1N Qg7 Ne3 Nf6 Rc8 a8R Rb8 Be4 Ned5 Ng4 Nc7 Rg2 Re8 h8R Bb7 Bf5 Be4 Ne3 Bh7 Bg4 Beg6 Rf8 Rc8 Rf7 Rc2 Nd5 c3 Ra7 Ndc4 Ne3 Nb2 Ra5 Rd2 Rc5 c2 Bf5 Qef1 Be4 Re2 Bb7 Rd2 Qf5 Qfa6 Bd5 Re2 e7 Rh8 Nf1 Re4 Qff6 Kd1 Qf5 c1N Qh3 Na2 Qh1 Bf5 Qg3 Bhg6 Rb3 Rh2 Qg1 Bh7 Rbb5 Bfg6 Rb4 N6c4 Rb7 Kc1 Q1f2 Q6a5 Ne3 Qa6 Rcb5 Nb6 Qe2 Nca8 Rd7 Rc3 Rc5 Nc7 Qf1+
q1nQ4/bbr2n2/8/q1n1qB2/B1KnbB2/6r1/R1P1r1PB/bQ3kqN b - - 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 e5 Be3 e4 Bd2 gxh6 Bg5 h5 Bc1 h4 a4 f6 Ra3 f5 Rd3 Ne7 Nc3 exd3 e4 Ng8 e5 Qb6 Ne4 fxe4 Qg4 Qf6 Qd1 Qd8 Kd2 Kf7 f4 Ke6 a5 Kf5 a6 h5 a7 b5 e6 d5 e7 b3 e8B h3 Qe2 b2 Qf3 b1N+ Kd1 b4 Ba3 d2 Ke2 d1R Qb3 Kg4 f5 d3+ Ke3 Kg3 Kd4 Kf2 f6 h2 f7 e3 Qc4 d2 Qc7 e2 Qd7 e1B Qc7 h4 Bc1 h3 Qc6 b3 Bd3 b2 Qb5 Nh6 Qb7 Nd7 Qb8 Na3 Qe5 b1N Qe6 Nc3 Bf1 Bg7+ Kd3 d4 f8B Nf7 Bc5 Ncb5 Qb3 Qa5 Qc4 Rg8 Ne2 Nbd6 Rg1 Nab5 Bb2 Rc1 Bba3 d1B Nc3 Bg4 Bb2 Bf3 Qa4 Bd2 Qb4 Be3 Ba1 Re1 Na2 Rb8 a8Q Bcb7 Nc3 Rc8 Nb1 Rc6 Qd8 Nc8 Kc4 d3 Qb2 Qa8 Qe7 h1Q Qf8 d2 Nc3 d1Q Qa2 h2 Kb3 Qd4 Bd3 Re2 Bd6 Rc7 Bf5 Bfe4 Rc1 Qb6 Nd1+ Kf1 Bae5 Qg1 Ra1 Qba5 Qb1 Ba7 Ra2 Nc5+ Kc4 Bh8 Bg3 Ba1 Bc6 Nd4 Qd8 Qf2 Ba4 Qf4 Be5 h1Q Bh2 Qg1 Bd6 Rg3 Nf2+ Re1 Nh1 Qg5 Bg6 Qe7 Bf4 Qe5 Qb2 Ree3 Bf5 Re2 Qb1+
b3qN2/r1n2pR1/Q1b3B1/1Nr1n3/1n1nn3/1P4bK/1r2P1n1/2NnkN1Q b - - 0 1 legal: proof: g4 c5 a4 e5 d4 cxd4 f4 exf4 g5 b5 Kf2 bxa4 Ra3 h6 Rc3 f3 Rc5 g6 Rf5 gxf5 g6 Qc7 Be3 Qd8 Bg5 hxg5 Ke1 f4 Kf2 Ke7 c4 Ke6 h4 Kf5 c5 Ke4 b3 a5 h5 d5 g7 g4 c6 a3 h6 d3 h7 a2 c7 a1N Na3 a4 Rh6 d4 Bg2 g3+ Kf1 Ke3 Rd6 d2 Rc6 f2 Rc4 d3 Rb4 Qe8 Rb7 Na6 Rb4 Bd6 Bh1 Bd7 Kg2 f1N c8Q Ra7 Qb7 Bc6+ Kh3 Kf2 Nc4 g2 Nb2 f3 Rf4 a3 Kg4 a2 Qb1 d1N Rb4 d2 Kh3 Nf6 g8N Ne4 Rb6 Nfe3 Ne7 Nac2 Nc8 a1N Qd7 Bg3 Na4 Ke1 Qe6 f2 Nb2 f1B Nd6 Nc7 Nb5 Nd4 Qc4 Rf8 h8N Nac2 Ng6 Nb4 Qbc1 Rg8 Nf8 Rg5 Qb1 Ba8 Rg6 Rc5 Rg7 Ng4 Qa1 Ne5 Qd5 Bc6 Qa6 Ba8 Qdb7 Ne3 Qbc6 d1N Nf3+ Kf2 Nh2 g1R+ Bg2 Ke1 Nd3+ Kd2 Nc1 Ke1 Qh6 Bf4 Kh4 Bg3+ Kh5 Bc6 Bh3 Bg2 Nf1 Bh1 Bf5 Ng2 Bh7 Rc2 Bg6 Rb2 Nd2 Rf1 Qh7 Rf2 Nf1 Rf5+ Kh6 Ba8 Nd7 Nd6 Qc8 Nec6 Nf8 Nh4 Qb7 Rc5 Qa6 Ne5 Kh5 Bhc6 Kg5 Ng2 Qh1 Ne4+ Kh5 Nd7+ Kg4 Ne5+ Kh3
r1rN3r/Bn1Qb2q/2Q5/2nKRQQq/b5rr/3Rp3/2kP1Pr1/5rq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 fxe4 c5 g6 c6 dxc6 h5 c5 Qe2 c4 Qg4 Qd6 Qd1 Qd8 g4 Nf6 g5 Ra5 Be2 Ra7 h6 Ra8 Bh5 Ng8 Nc3 gxh5 g6 Nc6 g7 Rb8 Nce2 Ra8 Nf4 Nb8 Ng6 hxg6 Ke2 Kf7 Ke3 Ke6 a4 Ke5 h7 b5 a5 c5 a6 g5 a7 g4 Qf3 c3 Qh3 c2 Ra2 h4 Ba3 c1Q Rh2 c4 Rh1 g3 Rb2 b3 Qf1 b4 Rh3 g2 Rg3 c3 Qe1 h3 Rc2 b2 Qd1 b1R Bb2 h2 Rf3 h1R Rf7 b3 Qg4 Rh4 Ba1 b2 Qe2 Nf6 g8Q Bd7 Qd3 Nc6 Qa6 Na5 Qc8 Qe8 Qd8 Ba4 Ne2 g1R Qg6 Rgg4 Qg8 Nb7 Qb6 Nd7 Ng3 Qg1 Rf3 Rf1 Qb4 b1Q Nf5 Qh5 Nd4 Ndc5 Qb5 e6 Qf7 Be7 Nc6+ Kd5 Qf6 e5 Qf5 Rg2 Ra2 c2 Nd8 c1R Qbd7+ Kc4 Bd4 Kb3 Ra3+ Kc2 Rd3 Rgg4 Qg5 Rg2 Rf5 Rgg4 Ke2 e3 Kf3 e2 Be3 Rf8 h8Q e1R Qhf6 Rh8 Bd4 Red1 Ke3 e4 Re5 Rg2 Qff5 Rhg4 Ba1 Rde1+ Kd4 Re3 Kd5 Rh3 Bc3 e3 Bd4 Rhh4 Qc6 Rc8 a8Q Rb8 Qa7 Ra8 Nf7 Qh7 Nd8 Qb5 Qcc8 Qe8 Qb6 Qeh5 Qcd7 Rb1 Qbc7 Rb6 Qcd6 Rc6 Qdf6 Rcc8 Q6g6 Ne6 Ba7 Nec5 Qgc6
4Q2q/n2RnP2/b1k5/2Q2QKN/pn5n/1qb1n1Rb/P2b1r1Q/1r1r1B2 b - - 0 1 legal: proof: d4 f5 c4 g5 e4 fxe4 f4 b6 c5 bxc5 g4 cxd4 f5 d3 Bf4 h6 Nd2 gxf4 Ndf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 Kf2 e5 h4 d5 b4 Kd7 g6 a5 b5 c5 g7 a4 f6 d4 h5 f3 Kg3 d2 Kh4 e3 b6 g3 b7 e4 h6 c4 h7 g2 Bd3 f2 Rh3 f1B Rc1 c3 Bb5+ Nc6 b8Q e2 Qb6 e1R Kg5 c2 Rc3 e3 Qf3 d1N Kf5 d3 f7 d2 Bc4 e2 Ra3 Rb8 Qff2 Nge7+ Kf6 Na7 g8Q Ba6 Qb1 Bg7+ Kg5 Bc3 Kh4 Ne3 Nf3 d1Q Ng1 Kc6 Qa1 Rb1 Nh3 g1N Kh5 Nf3 Nf4 Nh4 Kg5 Bh3 Nh5 Rh1 Qf5 e1B Be2 Bed2 Bf1 Qf3 Re1 c1N Rd1 Nd3 Qb2 Qe8 Qc2 Nb4 Rb3 Qa8 Qb8 Rd8 h8Q Rh2 Qe8+ Rd7 Ra3 Rf2 Qh2 Qd5 Qd3 Qb8 Qd4 Qbe5 Rb3 Qh8 Ra3 Qb3 Qde5 Be1 Rd3 Bed2 Qc5+ Kb7 Qce5 Rd8 Rd7+ Kc6 Qf8 Qe6 Bd3 Ng4+ Qe3 Be5 Rd5 Be1 Be2 Rd6 Rad3 B5c3 Bf1 Rd8 R5d4 Qb3 Rd5 Rd7 Qd4 Rd6 Rg3 Ne3 Qd8 Rf6 Rd7 Rd6 Qde5 Rdd1 Qe8 Bed2 Qc5#
3b2Qq/1R3P2/3n2nr/k1K2n1P/N1p1b1b1/1B1NN1Q1/r4b2/Nqqb1q2 b - - 0 1 legal: proof: f4 a5 c4 g5 a4 f5 g4 d5 e4 dxc4 b4 fxe4 f5 axb4 Bb2 h6 Be5 Qd5 Bf4 Qd8 Ra3 Ra6 Rg3 gxf4 g5 Ra7 g6 Ra8 Rg5 hxg5 Ke2 Kd7 d4 Kc6 h4 Kb6 f6 c5 h5 e5 g7 e3 d5 b3 d6 g4 d7 c3 Kd3 e4+ Kc4 e2 f7 e1Q Qd3 c2 Na3 c1Q+ Kd5 g3 Bg2 b2 Qc2 b1N Qd1 f3 Qc2 e3 Nh3 f2 Be4 f1B Rh2 e2 Ng1 c4 Rh4 g2 Rf4 Ka5 Qd3 b5 Qb3 b4 Nb5 Be7 Rf6 Nd2 Qg3 b3 Rb6 b2 Bc2 b1B Rb7 Rh6 Bb3 Ne4 Nd6 Nc6 Nf3 g1Q Nf5 Nd6 Ne5 Nd4 Ne3 N4f5 Kc5 Be4 Nd3 Qe8 d8N Bg5 Nf4 Nge7 g8Q Ng6 Nde6 Bd8 Nd3 Qb1 Nd4 Qec1 Ndc2 e1B Na1 Bf2 Bd1 Be2 Bb3 Ka6 a5 Qgf1 Qg7 Qh8 Qg8 Be6 Rb8 Ka7 a6 Bd1 Rb5 Nfh4 Rb4 Beg4 Rb6 Nhf5 Rb4 Rb8 Rb7+ Ka8 a7 Rc8+ Rc7 Rb8 Bc2 Rb2 Bb3 Re2 Rc8+ Kb7 a8N Ka6 Rb8 Ra2 Nb6 Ka5 Na4 Bdf3 Rb4 Bd1 Rb7
R4K1Q/1Q1q1pn1/1bR4n/P3rrqN/q3bP2/1Q3bk1/2q3r1/2BQ1bq1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 c4 g5 b4 g4 b5 a6 Qf3 axb5 Qb3 bxc4 Qd1 c3 Be2 h5 Bf3 Qd6 Na3 Qd8 Nc4 Qd4 Ne5 gxf3 g4 Qd6 g5 Qd8 Ng4 hxg4 Kf2 Kd7 Ke3 Ke6 d4 Kf5 a4 b5 h4 e5 d5 c5 g6 f2 g7 f1B h5 g3 h6 g2 h7 c4 a5 b4 d6 c2 d7 b3 Rh2 b2 Qe1 Kg4 Ra3 b1B Ne2 g1Q+ Rf2 c3 Nd4 Nh6 g8Q+ Qg5 d8Q Nc6 Qe2+ Kg3 Qh5 Bg4 Nf3 Nd4 Nd2 Bf3 Qhg6 Bc5 Q8g7 Ne6+ Qd4 Bb6 Rb3 Rag8 Ba3 c1Q Qf8 c2 Qb4 Qd1 Qf6 c1Q Qfe7 Qcc2 Qb7 Ng7 Rc3 Qa4 Rc8 Qdc2 Bc1 Qd7 Ra8 Qca4 Nb3 Bbd3 Nc5 Bc2 Kd2 e3+ Kc3 e4 Qb3 e2 Qd1 e1R Rd2 e3 Rd6 e2 Rc6 Qc8 Nd7 Bce4 Nf6 Qd7 Qbd5 Qc2+ Kb4 Qd4+ Kb5 Qda4+ Ka6 Re8 Qb3 Rhg8 h8Q Re5 Qe3 Bd8 Qeb3 Rf5 Ka7 Re8 Kb8 Ree5 Rd6 Bb6 Rc6 Qdd4 Kc8 Qg1 Qdd3 Rd1 Kd7 e1Q Qd4 Rd2 Qdd5 Rg2 Qd1 Qee2 Kd6 Qeb5 Kd7 Rd5+ Ke7 Rde5+ Kf8 Qbd3 Ng8 Qdd4 Nf6 Qd7 Nh5+
bn6/2P2K1B/4N1B1/n1Q2bpB/R1qqr2Q/3nB1nr/2Pb2q1/nk3b2 b - - 0 1 illegal: Other
Q2r1n2/N1K2bR1/krp2nQn/5Bq1/3pP3/1Pb3B1/3B1r2/rq1B1rq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 exf6 d5 f5 Qd4 f4 Qd3 Nc6 Qd1 Nb8 c4 Qa5+ Nc3 Qb6 Nb5 Na6 Nd4 cxd4 c5 Qb7 c6 Nb8 c7 Qb6 Ra3 Qf6 Rc3 Qd8 Rc6 dxc6 Kd2 Kd7 Kd3 f5 Kc4 a5 e4 h5 g4 a3 b3 a2 g5 a1Q g6 a4 d6 f3 Kc5 a3 Kb6 f2 g7 h3 Qd3 h4 Ne2 a2 Rg1 h2 Bd2 h1Q Qb5 h3 Qc5 f4 Qc1 h2 Be3 f3 Ng3 Nh6 g8Q Qb1 Qc2 a1R Bd3 f1R Qa2 f2 Nf5 Ra6+ Kc5 Rb6 Ng3 Qg5+ Nf5 Qhg2 Bc1 h1N Bc2 Ng3 Qg6 Nh5 Bd1 Nf6 Qa8 Qh1 Rg3 Qg1 Bd2 Ba6 Rg4 Bc4 c8B+ Kd8 Bd7 Bd5 Ne7 Bf7+ Bf5 Rg8 d7 Kc7 Qa3 Kb7 d8B Nbd7+ Kd6 Rh8 Bc7 Rg8 Qb2 Ka6 Bb8 Rh8 Kc7 Rg8 Nc8 Bb4 Na7 Rd8 Qc3 Nf8 Qg3 Bc3 Qg8 Qh5 Rg7 Qg5 Qd6 Re1 Qe6 f1R Qe8 Rf2 Qh7 Rd5 Qg6 Ref1 Qc8+ Ka5 Qb7 Rd6 Qa8 Ka6 Kc8 Rd5 Bg3 Rd8+ Kc7
n2QK1n1/2PP1p1r/bQ1NNr2/1R1B3N/8/3npr1b/q2b3q/k2Nb1b1 b - - 0 1 legal: proof: b4 a5 f4 axb4 a4 c5 g4 e5 e4 exf4 g5 d6 g6 hxg6 e5 g5 e6 g4 Ra3 c4 Rb3 cxb3 Bb2 Be7 Bc3 Bf8 Be5 dxe5 Kf2 Ke7 d4 Kf6 h4 b5 c4 g5 d5 b2 a5 e4 a6 Ke5 d6 g3+ Kg2 b3 Kh3 g4+ Kg2 b4 c5 e3 e7 Nd7 e8N Rh7 a7 Ba6 c6 Nc5 d7 Nd3 h5 Kd4 h6 Qh4 Be2 f3+ Kf1 f2 Kg2 f1R c7 Rf3 Nc3 b1N Qc1 b2 Bd1 b3 Rh2 Bb4 Qc2 Na3 Nh3 b1Q Nf4 b2 Nd6 Qa2 Qb3 Nc4 Nh5 b1B+ Qb2 Rb8 a8Q Rb6 Bb3 Rc6 Qb8 Nb6 Bd5 Na8 Qd8 Ba5 Nd1+ Bc3 Nb7 Rcf6 Nd6 Bc2 Qb3 Bd2 Rh1 Nc5 Rh2 Bf5 Qb6 Kd3 Rh3 Kc2 Rh1 Nd3 Rg1 Rg7 h7 Be6 h8N Rh7 Ng6 Bf5 Qc5+ Kb1 Ngf4 Ka1 Qb6 Be6 Rh1 Bf5 Ne6 Qh3+ Kg1 g2 Rh2 Qg3 Rh3 Qh4 Kh2 g1B+ Kg2 g3 Rh1 Be4 Rh2 Qf4 Kh3 Bf2 Rg2 Qh6 Kg4 Bfe1 Rf2 g2 Kh4 Qf8 Kg5 g1B Rh2 Bf5 Rh4 Nc5 Rb4 Bh3 Rb5 Nd3 Nc8 R6f4 Qb8 Bb4 Qb6 Qc5 Nd6 Qcc2 Rc5 Qh2 Rb5 Ne7 Qa7 Bbd2 Qb6 Nf5 Kf6 Nh6+ Ke7 Ng8+ Kf8 Rf6 Ke8
1r1nn1br/4kq2/1Qp5/PBn3P1/1nbnpb2/K1B2n2/3nRQ2/1BBN4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 a4 e5 d4 d5 Na3 dxc4 d5 Nd7 Nb5 Nb8 Nd4 exd4 e5 f5 Ra3 Qg5 Re3 Qd8 Re4 fxe4 Kd2 b5 Kc2 h5 Kb2 d3 f4 c3+ Kb3 c2 g4 d2 e6 h3 a5 h4 g5 h2 d6 h3 f5 Ba6 e7 Nc6 f6 Rb8 Nf3 Qd7 Ba3 c1N+ Kb2 b3 Ne5 b4 Qf3 d1B Qc3 Nd3+ Ka1 b2+ Ka2 b1N Rg1 h1N Rg2 b3+ Ka1 b2+ Ka2 h2 Qc5 Nd2 Ng4 b1N Qd4 Ng3 Qa7 h1N Nh2 Ne2 Bb2 Ned4 Bc1 Nc5 Bd3 Nd8 Ng4 N2f3 Ne3 Nf2 Qb6 Nbd2 Bb1 Bb3+ Ka3 Bac4 Nd1 Nfd3 Re2 Kf7 e8B+ Ke6 f7 Nf6 Rh2 Nb4 Re2 Bg7 f8B Qf7 Bb5 c6 d7 Ne8 Bd6 Bf8 Be5 Bd6 Bf6 Bf4 Bg7 Ndb7 d8Q Ba2 Qc8+ Ke7 Qh3 Nd8 Qh4 Qh5 Be5 Bg8 Qg3 Bac4 Qf2 Qf7 Bg7 Nf5 Ba1 N5d4 Bc3
2n5/pKN2q1p/2r1B3/b4Q1P/NbP1N1R1/nQr3q1/3q4/q1kqNbb1 b - - 0 1 legal: proof: b4 b5 e4 d5 a4 dxe4 Qe2 bxa4 b5 f5 b6 cxb6 Qf3 b5 Qd1 b4 Ra3 g5 Re3 f4 Bb2 Ba6 Be5 fxe3 f4 Bb7 f5 Bc8 Bf4 gxf4 Ke2 Kf7 h4 Kf6 d4 e5 g4 a3 h5 Kg5 f6 f3+ Ke1 Kf4 d5 a2 d6 a1Q g5 b3 g6 f2+ Ke2 b2 c3 Ne7 g7 Na6 g8N Nb4 d7 Ba6+ Qd3 Rc8 f7 Rc6 Nf3 Nc2 Rh3 Na3 Rg3 Nc8 Qc4 Bc5 Nbd2 b1Q f8N Qb3 Qb5 Qf7 Qd3 Qg5 Rg2 Qg3 Nb1 Bb4 Kd1 e2+ Kd2 e1B+ Ke2 e3 d8Q e4 Nf6 Rg8 Qd5 Rg5 Q5c4 Rgc5 Qb3 Ba5 Rg1 Bc4 Bh3 f1Q+ Kd1 Bb6 Be6 e2+ Kc1 e3 Ne4 Bf2+ Ne1 Ba5 Rg2 Bg1 Qd5 Bb5 Qd3 Nc4 Kc2 Qff3 Qd5 Qff2 Kd3 Na3+ Kd4 Qf1 Nf3 e1B Qd7 Rc4+ Kd5 Bd2 Ne1 e2 Qb4 Ke3 Qb3 Qb8 Rg4 Qg3 Nd3 Qd1 Ne1 Qff3 Qf7 Qff2 Qg6 Qf7 Qf5 Ba6 Nd7 Bb4 Ndf6 Ba5 Ne8 Bb4 Nd3 e1Q Nc7 Ba5 Nb2 Qee2 Na4 Be1+ Nbd2 Kd3 Qb7 Kc2 Qb8 Kc1 Qb3 Bd4 Nf3 Qed2 Qb4 Bb5 Qb3 Bg1+ Nd4 Rb6 Qa2 Qdh2 Qb3 Bd2 Nc2 Qhg2 Ne8 Rc7 Ne1 Bf1 Qa2 Rb3 c4 Re3 Qb3 Bdb4+ Qd3 Rc6 Nc7 Ra6 Nb2 Qgd2 Na4 Nb6+ Kc6 Nc8+ Kb7 Rc6 Qb3 Rf3 Ka8 Rc3 Kb7
1RrBkqrb/8/2n1n3/nPQ3np/3P2b1/1NN1q3/rq2rp2/NQ1K2N1 b - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 dxc4 f5 g6 f6 exf6 h5 f5 Qc2 f4 Qb3 Be6 Qd1 Bc8 g4 Nd7 b4 Ne7 h6 Nb8 Ra3 Ng8 Rah3 Na6 R3h2 Nb8 Rh5 gxh5 g5 Qd6 g6 Qc5 g7 Qf5 Bh3 Qd7 Bf5 Qd8 Bg6 hxg6 d4 c5 e4 f5 b5 a5 e5 f3 e6 f4 h7 a3 e7 f2+ Ke2 f1R Bb2 g5 Qc1 g4 Qc3 g3 Qb3 c3 Qd1 a2 Rh2 a1Q Qe1 a4 Na3 g2 Qb1 f3+ Kd3 c2 Kd2 c1N Kc2 c4 Rh3 f2 Rh4 c3 Rh3 Nb3 Nc4 a3 Bc1 a2 Bd2 Qb2+ Kd3 a1R Ke2 c2 Ba5 c1Q+ Nd2 Nf6 g8N Nfd7 Re3 Nc6 Nh6 Ndc5 Nf5 Rg8 h8Q Ne6 Qe5 Bg7 Qc5 Bh8 Bc7 Qd6 Bd8 Nba5 Rf3 Qcc3 Ne3 Ra2 Nc2 Bd7 Rf5 Rc8 Nb3 Qh3 Kd2 Re1 Rd5 Re2+ Kd1 Qhc3 Nca1 Qe3 Rf5 Qdf4 Rd5 Qf8 Rd6 Nb8 Rb6 Nbc6 Rb8 Nf4 Qg5 Bg4 Qc5 Ne6 Nf3 Kd7 e8N g1N Nc7 Nh3 Ng1 Nhg5 Nd5 Ke8 Nc3
2b1b1K1/3p1Q2/4n1Qr/2r2pqr/pk2NPQ1/N3bPB1/Qr5n/1R2r1q1 b - - 0 1 illegal: Other
1r6/1kpQ1Q1K/3qRq2/p3PrQ1/N7/rP1qQ1nB/pRq1b3/1q4bn b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 c5 bxa4 c6 g5 Qb3 g4 Nf3 g3 Ng1 dxc6 Qc2 c5 Qd1 c4 b3 h5 Ba3 Qf6 Bc5 Bh3 Bf2 Qh4 Qc1 gxf2+ Kd1 Qf6 Qc2 Bd7 Kc1 Bc8 Qd1 Qd8 g4 Ne7 g5 Qd4 Nc3 Qd8 Ne4 Ng8 Nf6+ Ke7 Ng4 hxg4 Bg2 Kd7 Bf1 Ke8 Kc2 Kd7 d4 Kc6 h4 f5 e4 c3 Kd3 c2 d5+ Kb7 g6 c1Q e5 g3 g7 f3 d6 g2 h5 f4 Ke4 a3 d7 a2 Kf5 Na6 Kg6 Bc5 h6 Qc2+ Bd3 f1Q h7 f2 Rc1 f3 Rh4 Nf6 g8Q Ne4 Nh3 g1Q+ Ng5 Ng3 Kh6 Nh1 Bg6 Qfd3 Ne6 f1Q Rb1 f2 Rb2 Be3+ Rf4 Nc5 Bf5 Ne4 Qf7 Neg3 Bh3 Qd6 Qg4 Qfd3 Qg5 f1R Rf6 Rf5 Kg7 Rf8 h8Q Qgb1 Qhh6 Bg1 Kh7 a6 Rg6 Qf6 d8Q Bd7 Qde7 Bb5 Qd7 Rfb8 Qe3 Qdd2 Qhg5 Be2 Nf4 Qd2d3 Nd5 Rg8 Nb6 Rab8 Qh4 a5 Rh6 Rg4 Qhg5 Ra4 Rg6 Ra3 Na4 Qfe7 Re6 Qd8 Qf2 Qf6 Qfe3
n3br2/5b2/Q1p3rq/ppn1b1Q1/1n5Q/N1PB1P1b/6B1/kq2QqRK b - - 0 1 legal: proof: h4 g5 e4 gxh4 a4 f5 b4 fxe4 b5 d5 a5 b6 Nc3 e3 Ne4 dxe4 a6 Nd7 Ra5 Nb8 Bb2 Qd7 Bd4 bxa5 b6 Qd6 b7 Qd8 Bb6 axb6 d4 Kd7 g4 Kc6 d5+ Kc5 c3 h5 g5 e5 a7 e2 g6 Kc4 g7 h3 d6 b5 d7 h2 Nf3 h4 Qd4+ Kb3 Qa4+ Kb2 Ng5 h3 Qc2+ Ka1 Qd2 Rh6 Qf4 Qf6 d8Q Rg6 Qdd2 Nc6 b8Q Nge7 g8B Bg7 Qd4 Nb4 Bg2 Ned5 Ne6 Nb6 Rf1 h1B Ng5 h2 Qb7 Bh3 Qfe3 Rf8 Nf7 Na8 Kd2+ e1N Qe2 e3+ Kd1 e4 Rg1 Ned3 Ne5 Nc5 Qf1 e2+ Ke1 Qe6 Nc4 Be5 Bh7 c6 Bf3 B1g2 Qc8 h1B Qa6 Bf5 Qd2 Bgh3 Bg2 Bfg4 Na3 Bh5 Qg5 Qf6 Qb7 Qg7 Qbe7 Qh6 Bf3 B1g2 Qh4 Bd7 Qeg5 Bgh3 Bg2 Be8 f3 Bf7 Rh1 Be8 Kf2+ e1Q+ Kg1 Qb1 Qd1 e3 Qde1 Bf6 Kh2 e2 Rg1 Be5+ Kh1 Bf7 Bg8 Be8 Bc4 Bf7 Bd3 Be8 Qef2 e1Q Qe2 Qf1 Qee4 Nb6 a8Q Bf7 Qa6 Na8 Qef5 B5g4 Qff6 Bd7 Qe6 Bde8 Qee7 Bh2 Qe2 Be5 Qee1
bR1r4/4b3/1Pr1pBn1/1nb2Q2/pQ2r3/qr1BkPKp/1N1q2n1/4QQ2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 fxe6 h5 e5 Rh2 e4 Rh3 Ba6 Rh1 Bc8 g4 h6 b4 Qa5 Rh4 Qc7 Nd2 Qd8 Ndf3 Qa5 Rh1 Qc7 Nh4 Qd8 Ra3 Ba6 Rg3 gxh4 g5 Bb7 g6 Bc8 Rg5 hxg5 c4 d5 f3 Kd7 Kf2 Ke6 g7 Kf5 b5 a5 c5 e3+ Kg2 Kf4 h6 a3 b6 e6 h7 g4 c6 a4 c7 h3+ Kh2 a2 Bg2 a1Q Bb2 d3 Qc1 d4 Qc3 d2 Bc1 d1N Qa3 d3 Qb3 d2 Qd3 e2 Qc2 e1R Qc3 Ne7 g8Q Bb7 c8Q Na6 Bb2 Ng6 Q8c5 Nc7 Q5b4+ Re4 Qd3 Be7 Qb1 Ke3 Qf8 Rc8 Ne2 Ba8 Rg1 Nb5 Nf4 Rc6 Bf6 Qa3 Nd3 Qd7 Qf7 Rd8 h8Q Qd5 Qh4 g3+ Kh1 Qd7 Bf1 g2+ Kh2 Qd5 Nb2 Qdd3 Rh1 g1B+ Kg3 Qe2 Qf8 Rd3 Rh2 Rb3 Rg2 Nf4 Kg4 Qd3 Rg3 Kf2 Qg7 Qc2 Qgh7 Ne3+ Kg5 d1R Qf5 Rd7 Bd3 Qd2 Qd1 Neg2 Qf1+ Ke3 Rg4 Rd5 Qg3 Rdd6 Rh4 Ng6 Rh8 Rd7 Rb8 Rd8 Kh5 Bf2 Qd5 Bg1 Qge1+ Kf4 Qdc5 Qe2 Qd5 Bgc5 Qf5+ Ke3 Kg5 N6f4 Kg4 Ng6+ Kg3 Bf8 Qa1 Bfe7 Qad1 Qd2 Qde1+
B2q4/1QP1q3/5r1R/N1Pn2bK/3pk2B/bB1r2qb/1np2p2/B3Qrr1 b - - 0 1 illegal: Other
n1bN1b2/4QNp1/2PQ1pn1/1Bn1rQ2/Qqprr2p/1k3r1b/R3P2K/8 b - - 0 1 illegal: No proof kernel
q1n1KnB1/1p3P2/bpp2QPr/1R1B4/1p5N/1rnnb2q/5B2/2BQ1n1k b - - 0 1 legal: proof: b4 f5 e4 fxe4 h4 g5 c4 gxh4 a4 Nc6 c5 Nb8 b5 c6 b6 axb6 Nc3 Nf6 Nb5 cxb5 c6 b4 c7 Ng8 Ra3 Kf7 Rc3 Ke8 Rc6 dxc6 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 h5 Kg6 e5 Kf7 h3 f4 e3 d4 Ke4 g4 e2 g5 e1N d5 h2 a5 h4 f5 h3 a6 Rh6 a7 Nf3 d6 Nd2 d7 Bc5 f6 Nb1 g6 Ne7 Ne2 Kf3 Qc2 e4 Qc3+ e3 Qc4 Nc3 Nf4 e2 Ng2 e1N Bb2 Be3 Qe6 Qh8 d8B Nd7 Rg1 h1N Bc4 h2 Rf1+ Kg3 Rf5 Kh3 Qd6 Ng3 Ra5 h1Q Bd5 Kh2 Rc5 Rb8 a8Q Kg1 Qe6 Qh3 Qa4 Ra8 Bc1 Kh1 Qd1 Ra3 Ra5 Rb3 Qf5 Nf8 Qf2 Bd7 c8B Bf5 Bce6 Bd3 Bc7 Nf1 Bg3 Ba6 Rb5 Nd7 Nh4+ Qg2 Qf4 Qa8 Bf2 Nc8 Ke8 Nd3 Bg8 Nf8 f7 Qf3 Qf6 Qg2 Nf3 Qh3 Nh4+
1N4q1/5R1P/q4Rrn/1N1q4/3N1P1n/1q1nnb1K/6rn/1NN1kqbQ b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g3 cxd4 g4 h5 b4 hxg4 b6 a5 b5 a4 Bh6 a3 Nh3 Nxh6 Bd3 a2 Ng1 Ng8 Bc4 Nh6 Bg8 Nxg8 Kf1 Kf7 Kg2 Ke6 h4 Ke5 c4 Kf4 h5 g5 c5 e5 f3 Ke3 c6 d5 c7 d3 f4 d4 b7 d2 b6 g3 h6 d3 h7 g4 Qa4 d1N Rh2 d2 Qa7 Nh6 Nh3 Ke2 Na3 e3 Nb5 e4 Rb1 a1Q Rb2 Bc5 Qa6 Nc6 b8N Bb7 c8N Ne5 Nc7+ Nd3 Rh1 Qd5 Ne6 Rg8 Nd6 Rg6 Qb5 Ra2 Ng1+ Ke1 Ng5 e2 Qc4 e3+ Nde4 Ba8 Rh4 Bb7 Kh1 g2+ Kh2 g3+ Kh3 Bc6 Qa4 Qb3 Nc3 Bf3 Rc2 Rb2 Qc6 Qa6 Rg4 Qd5 Kh4 Ra2 N1h3 g1N b7 g2 Nge4 Rf6 Qe6 Kf1 Kg3 e1Q+ Kh2 Be2 Rg7 Bh5 Nc6 e2 Nhg5 Nf3+ Kh3 g1Q b8N Nh4 Re7 Rb2 Nf3 Qg8 Rc1 Rg6 Nb1 Rc2 Qf5 Bg1 Na7 Ne3 Nb5 d1Q Rf7 Qb4 Rf6 e1N Nec3 Qbb3 Nfd4 Nef3 Nce2 Nh2 Qe4 Rd2 Qh1 Bf3 Rc7 Qe1 Nec3 Rdg2 Na2 Kf2 Rg7 Qf1 Rgf7 Ke1 Nc1
3Q1bK1/1Rp3n1/1r2P2p/1N1Rb1N1/3R4/nkp2Rr1/1P2q2n/1qb3Rn b - - 0 1 legal: proof: e4 d5 a4 e5 c4 dxc4 d3 f5 Kd2 fxe4 a5 e3+ Kc3 e4 a6 e2 Nh3 e3 Ra4 Bf5 Ng1 Be4 Ra1 bxa6 Kc2 a5 Ra2 a4 Ra3 Nh6 Ra1 Ng8 dxe4 h5 g4 Nc6 h4 Qg5 Bh3 Qd8 g5 Nb8 Bg4 hxg4 h5 Rh7 Qd3 Rh6 Qd1 Rh8 g6 Nc6 h6 Ba3 h7 Be7 Bd2 Nb4+ Kc1 Na6 Bc3 Nb8 Bf6 Bd6 Bg5 Bf8 Bh6 gxh6 Kc2 Ke7 Kc3 Ke6 f4 e1B+ Nd2 a5 g7 e2 e5 Kd5 e6 g3 f5 g2 f6 a3 f7 a2 Rh2 a4 Rc1 a1N Rh3 a3 Nf3 g1B Nh2 a2 Rc2 Nf6 g8R Ng4 Nf1 Nc6 Qc1 Bg3 Qb1 e1N Rh4 Ne7 Rh5+ Nf5 Qd1 Nf3 Nh2 Be3 Nb1+ Kc5 Rc1 Nf2 Rg4 Rb8 Na3 Rg8 h8R Be5+ Rd4 Nh1 Nb5 Nc2 Qd3 a1Q Rg1 Qb1 Rhg5 Bfg7 f8R Rb6 Qd1 Qd7 Rb8 Qe8 Rb7 Bf8 Rh7 Qb8 Rf7 Ng7 Rgf5 Qe8 Rd7 Qh5 Rd5+ Kc6 Rf7 Bc1 Qd2 Na3 Rf6 Nh4 Nf3 Qg4 Ng5 Nf3 Qd3 Nh2 Rf3 Qg2 Qh7 Qe2 Qh8 Nh5 Qf6 Rg6 Qd8 Ng7 Nh3 Rg3 Ng5 Bed6 Rdd1 Bdf4 Kd4 c3 Rd2 Be3+ Ke5 Bf4+ Kf6 B4d6 Kf7 Be5 R5d4 Kc5 Rd5+ Kc4 R2d4+ Kb3 Kg8
8/1P2RRr1/pRk2bpB/n2n2P1/2b3pK/Q1Rb2Bb/2R1r1rr/n7 b - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 h5 a4 b5 g5 bxa4 Bh3 Nh6 Be6 Ng8 Bg4 hxg4 e4 d5 Nd2 f5 Nb3 axb3 Ne2 d3 Nc3 d4 Ra6 Rh4 Ra1 Qd5 exd5 Rh8 Ne4 fxe4 c4 Kd7 h4 e5 f4 d2+ Kf2 a6 Kg3 b2 b5 b1B c5 e3 h5 d3 d6 e2 h6 e1N h7 g6 f5 e4 f6 e3 b6 e2 f7 Ne7 b7 Nd5 Rh4 Nc2 Bb2 e1R Qc1 d1R Ra3 d2 Rc3 Be7 f8R Na1 Rf7 Kc6 d7 Re2 d8R Bf6 Rc2 Rde1 Be5 d1B Qa3 Be6 Re7 Rg8 h8B Rg7 Rh7 Rg2+ Kh4 Be2 Bg3 Bf1 Rf7 Ree2 Rd6+ Kb5 Rc3 Bd3 c6 Kb6 c7+ Nc6 c8R Rb8 Rdd7 Na5 R8c4 Rc8 Rde7 Rc5 Rb4+ Kc6 Rc2 Rgf2 Rc3 Bh3 Rb1 Rg2 Rh5 Rh7 Bg7 Rc4 Bh6 Rg7 Rcb3 Rcc2 Rc3+ Bc4 Rb2 Bf5 Rbb3 Bd3 Rb5 Nc7 Rb6+ Kd5 Rf8 Rg1 Bf2 Ree1 Qa4 Bg2 Kg3 Re4 Rh1 Bh3+ Kh4 Re6 Be1 Rh2 Bg3 Rgg2 Rhc1 Ree2 Rff7 Kc5 R1c2 Nd5 Rb5+ Kc6 Qa3 Re4 Rbb2 Ree2 Rb6+
5r2/2p1nPNR/K2b1qR1/1nrr1p1B/4n3/P1b1bbRr/k1RN2q1/5R2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 f5 Bd3 d5 Bf1 dxc4 f4 Be6 Qc2 Nd7 Qe4 fxe4 f5 Nc5 f6 Ra6 f7+ Kd7 Bb2 Ra8 Bd4 Na6 Be3 Nb8 Bg5 Bh3 Bf6 exf6 Ne2 Ke7 Ng1 Bc8 Rh2 Ke6 Rh1 Kd7 Ke2 Kc6 d4 Kb5 g4 Ka4 d5 b5 e6 h5 g5 b3 d6 b4 a3 h3 e7 h4 e8R c3 d7 b2 g6 Kb3 g7 e3 Kd3 c2 Re7 c1B Re8 e2 Re7 e1B Rh2 f5 Rh1 h2 Nh3 Na6 Rg1 h1R Rg3 Bc3 Re8 Qf6 d8R Bb7 Nf4 h3 Ng6 h2 Bh3 Ne7 g8R Bf3 Rg2 Rd1+ Rd2 h1Q Bg4 Qg2 Nf4 Rh3 Bh5 Rc8 Rd6 Nc5+ Ke3 Rb8 Rg3 Ne4 Kd3 Rb5 Ra8 Rc5 Raa6 Ng6 Rdc6 Bd6 Ne6 Ne7 Rcb6 Re1 Rf2 Be3 Ng7 Reh1 Bg6 Rh8 Rc6 R1h3 Bh5 Rf8 Rf1 Bcd4 Nc3 b1R Rc1 Rb2 Nb1 Bc3 Ra8 Rf2 Nd2+ Kb2 Rf1 b3 Rac1 Ka2 Raa6 Rd5+ Kc4 b2 Rab6 b1N Rb3 Nc5 Kb5 Ne4+ Ka6 Re2 Rg6 Re1 Rh6 Rc5 Rh7 Rd1 Nc4 Rd4 Nd2 Rdd5 Rb4 Ng5 Rg4 Ne4 Rb6 Bce5 Rg6 Nbc3 Rg3 Nb5 Rc6 Bc3 Rb6 Bdf4 Rc6 Qg6 Re6 Bd6 Rf6 Qg5 Rg6 Qf6 Rc2+
1r1b4/rB1pP1RR/P7/3n2BK/nBp1bq2/2bq4/2pBBn2/1rk2q1Q b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 b5 b4 bxc4 b5 e5 Nc3 f6 Nd5 exd4 Nb4 axb4 Nf3 f5 e5 Ra6 Ng5 Ra8 Ne4 fxe4 Ke2 Kf7 a4 Kg6 g4 h5 f4 c5 e6 c3 b6 c4 b7 d3+ Ke3 h3 f5+ Kg5 a5 d2 f6 h4 f7 c2 Ra4 b3 Be2 h2 Rb4 b2 Bd3 b1R Rf1 h1Q Re1 h3 Ba3 h2 Ke2 Kf4 g5 e3 g6 Na6 b8B+ Qc7 g7 Ne7 g8B Nd5 Rb3 Ra7 Be7 Bb7 Rg1 Nc5 a6 Na4 Rg7 Ba8 Bf6 Be7 f8B Bd8 Bb4 Qg1 e7 h1N Bgh7 Nf2 Bhe4 Qd6 Bc7 Qg5 Bca5 Qge5 Kf1 e2+ Kg2 Ke3 Bg5+ Qf4 Qh1 d1Q Ra3 e1B Be2+ Bc3 Ra1 Nc7 Bb7 Kd2 Rh7 Kc1 Rg7 Qfd2 Kf3 Qf1 Ra3 Nd5 Rb3 Nd3+ Kg4 Qe5 Rh7 Qef4+ Kh5 Nf2 Ra3 Qd3 Rb3 Bd4 Be1 Bc3 Bb4 Bc7 Ra3 Rb8 Rg7 Nb2 Ra5 Na4 Rc5 Ba5 Rc6 Bc7 Rh6 Bd8 Rhh7 Nc7 Bc8 Be4 Bb7 Nd5 Bd2+
8/3pBK1b/n2Nn1Bk/1qB1qpB1/1P1p2n1/1r1n2B1/1Rbb1RP1/1q2r3 b - - 0 1 illegal: Other
NNb2q2/1qn2p2/1rp1N2n/K1P1rnr1/1B2kB2/5Q2/5PB1/1b3Bqr b - - 0 1 illegal: No possible last move, all moves rejected
1b1r1rnB/1N1pPB2/2bn2Rn/7B/8/pqpR1P1r/1r1B1n2/k1K3R1 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 b3 e5 axb5 c5 b4 cxb4 c4 f6 Nc3 bxc3 e4 exd4 e5 f5 Qc2 Be7 Qb1 Bf8 Qe4 fxe4 Kd1 Kf7 g4 Ke6 f3 h5 c5 Kd5 g5 a5 e6 e3 g6 d3 b6 Kc4 b7 Kb3 g7 h3 c6 h4 c7 e2+ Ke1 a4 Rb1+ Ka2 Rh2 a3 Bg5 d2+ Kf2 d1N+ Ke1 Nc6 b8B Nh6 g8R Nf2 Rd1 Bb7 c8B Ne7 Rd4 Ne4 Rd3 Qb6 Rg6 Nd6 Rh1 h2 Bh3 Ka1 Bg4 h3 Bh5 Bc6 Bb7 Qb3 Bd2 Neg8 e7 Bg7 Ba7 Rd8 Bd4 Be5 Ba6 Rf8 Bc4 Rd8 Bf7 Rf8 Kf2 e1R Ne2 Rb1 Rhg1 h1R Nc1 h2 Ke2 Rb2 Ke1 Nc8 Ke2 Bb8 Ke1 Nd6 Bg7 Nf6 Ke2 Rhg8 Bh8 Rd8 Ke1 Rgf8 Ke2 Nfg8 Ke1 Qb6 Kd1 Qb3+ Ke2 Qd5 Kd1 Qa2 Re3 Qd5 Nd3 Qe6 Kc1 Qb3 Rd1 Re1 Nc5 h1N Rd3 Nf2 Nb7 Rh1 Rf1 Rh3 Rfg1
4K2b/1pRp1R2/Np1p1Pbr/5P2/2bqn1N1/1rR5/Bk4q1/2rNr2R b - - 0 1 illegal: Other
3Rb1Nr/2b2r1r/1k2R1n1/2q5/R1N1Pnnr/2b4R/nnP1Bn1N/5K1n b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Bb2 g4 Bc1 exf6 Kd2 f5 Ke1 f4 Qd3 h6 Be3 Bg7 Bf2 Qh4 Qf3 gxf3 g4 Ra5 g5 Ra8 g6 Qd8 Bh4 Bf8 Bg5 hxg5 e4 f5 a4 d5 h4 Kd7 h5 Kc6 h6 b5 a5 b3 g7 f2+ Ke2 d3+ Kd1 b4 h7 f3 a6 f4 a7 b2 Ra2 d2 Rh4 b3 Bg2 f1N Nc3 b1N Rh5 f2 Ke2 d1N Rh4 d4 Nf3 b2 Ne1 d3+ Kf3 d2 Ke2 g4 Nf3 g3 Rg4 Nd7 Bh1 g2 Rh4 g1B Na4 Bb4 Ng5 f3+ Kd3 Nh6 g8N Ng3 Rf4 f1N Rf7 f2 Nh3 Ne2 Nc3 Qc7 Ra3 Nfg3 Nf6 f1R Ra2 Bb6 Ng4 Nf2+ Kc4 d1N Ng1 Nf4 Nf6 Nf8 Re7 Bd7 Re8 N8g6 Ra4 Nhg4 Bf3 Ngh1 Nb5 Nbc3 Ng8 b1R Be2 Na2 Nd6 Bc3 Re6 Be8 Nf3 Rd8 a8R Rd7 Nh2 Nb2+ Kb3 Qa7 Rb8 Bc7 Rd8 Nbd3+ Kc4 Kb6 Ra8 Rb5 Rc8 Rh5 Rd8 Ba5 Kd4 Rh4 Kc4 Nb2+ Kd4 Nh6 Ke3 Bc3 Kf3 N4d3 Kg2 Nhg4 Ra3 Rf7 Ra5 Rd1 Ra4 Rd2 Kf1 Ndf4 Nh6 Rd5 Ng8 Rdh5 Nf6 Rg8 h8R Qa5 Rh6 Rh8 Ng8 Qc5 Rf6 Ne6 Rf3 Nef4 Rh3 N6e5 Rg6 R5h7 Re6 Neg6 Nc4+
1r5r/B2bP3/Bknn1r2/3r1Rb1/Pqb5/1r2NpRq/2B2b1R/nBK5 b - - 0 1 illegal: No possible last move
6n1/1RnPbQ1q/Bn3b1B/k2B1p1r/2R1PR1n/3nn2n/rB6/1Kb4b b - - 0 1 legal: proof: g4 g5 b4 h5 c4 d5 f4 gxf4 b5 e5 g5 e4 Na3 dxc4 Nf3 exf3 Nc2 a6 Ne3 axb5 Ng4 hxg4 Qb3 b4 Qc2 Bc5 Qd1 Bf8 h4 Kd7 a4 Kc6 d4 Kb6 Kd2 c5 Kc2 f5 d5 b3+ Kb2 g3 d6 c3+ Kb1 f2 d7 c4 e3 b2 g6 f3 h5 c2+ Ka2 b1N h6 g2 g7 g1B h7 c3 Rh5 Na3 Bg2 f1N Rh2 f2 Rh5 Be7 Rh3 Na6 Qd2 Nh2 Rh5 f1N Rh3 Nc4 Rg3 Nf3 Qd3 Nc7 Qd5 Nh4 Qd1 Ka5 Qh5 b5 Qe2 b4 Qd3 Bb7 Bd5 Nb6 Rb1 b3+ Ka1 Ra6 Rf3 b2+ Ka2 Qe8 Qc4 Qf7 Rf4 Bf2 Bd2 c1B Qb3 Bc6 Bc4 Bh1 e4 Ra8 Ba6 Bd4 Be3 Qh5 Qf7 Bdf6 Bd2 Nf3 Be3 Ng5 Bd2 Nh3 Be3 Nh6 g8R c2 Rb8 Ng8 Rb7 Bd2 Re1 c1N+ Kb1 Nd3 Rc1 Qg6 Rc4 Bc1 Rf2 Qh5 Bh6 Ne3 Rf4 Bg5 Ka2 b1N Ka1 Nd2 Ka2 Nf6 Ka1 Nf3 Kb1 Rhe8 h8B Nh4 B8g7 Ng8 Bb2 Bgf6 Rc5+ Kb4 a5 Rf8 Bc4 Qg6 a6 Qh7 a7 Rfb8 Rc6 Ka5 Ba6 Rd8 Rc4 Rf8 Qe8 Rf7 Qf8 Rg7 Qf7 Rg5 Ka1 Rh5 Kb1 Rd8 a8B Re8 Ra7 Rd8 Bd5 Ra8 Rb7 Ra7 Rc6 Kb4 Bb5 Ra2 Rc4+ Ka5 Ba6
4r3/nB3nBB/r2N2qR/1Pr5/rRR1P1bb/1b3r1n/k1r1p3/3n1R1K b - - 0 1 legal: proof: e4 e5 a4 c5 h4 g5 d4 exd4 a5 gxh4 a6 f5 Bf4 c4 Bc1 f4 Qd3 cxd3 Nc3 bxa6 Nd1 a5 Ne3 fxe3 Rh3 a4 Rh2 Nc6 Rh1 Nb8 b4 Ke7 f4 Kd6 c4 h5 g4 a5 f5 d2+ Ke2 d1B+ Ke1 h3 f6 a3 f7 h2 g5 e2 Kf2 a4 Kg2 a2 b5 Kc5 g6 Kb4 g7 Kb3 c5 d5 c6 a3 c7 h4 Bd2 d3 Bg5 h3+ Kg3 d2 Be7 d4 Bd6 d3 Nf3 Bg4 c8B Nh6 g8R Nc6 Ng1 Qf6 Rc1 a1R Bc7 a2 Be5 Na7 Rg5 Be7 f8R Nf7 Rh5 Qg6 Bc7 Bh4+ Kf4 Rg8 Rc2 Rc1 Bb8 a1R Be5 Ra4 Rc3+ Ka2 Bg7 Bb3 Nf3 d1N Nd2 Nf2 Rc4 Rc2 Bb7 Re8 Rg1 h1R Rh6 h2 Bh3 Re5 Re1 Rc5 Rb1 Rf1 Ke3 h1R Kf4 Bg5+ Kg3 Bh4+ Kg2 Rh8 Rc1 Rg8 Rb4 Rh8 Rc8 Re8 Nc4 d2 Nd6 d1N Rc6 Rhg1+ Kh2 Rg3 Rc7 Rf3 Rc6 Bge6 Bf5 Nh3 Rc8 R1f2+ Kh1 Rg2 Rc6 Rg5 Rc7 Rc6 Rc8 Rca6 Rcc4 Bd7 Be6 Rc5 Bf5 Qg5 Bg6 Bg4 Bh7 Qg6 Rb1 Ne3 Re1 Nd1 Rf1
1kb1rrrb/pb1P1nN1/1RN5/1q1B3r/nrB3NB/qB3r2/3P4/3Kb3 b - - 0 1 illegal: Other
2B3Nn/b2K4/B2N1rqn/q4PQ1/2kBqp2/1qb4n/B1PnbN2/1b1r4 b - - 0 1 legal: proof: e4 g5 f4 e5 a4 a5 h4 gxh4 g4 c5 d4 cxd4 b4 axb4 Rh3 f6 Rf3 Be7 f5 Bd6 Rf4 Bf8 Ra3 exf4 e5 Kf7 e6+ Ke7 Re3 Ke8 Re5 fxe5 Ke2 Ke7 Kd3 Kd6 Kc4 b5+ Kb3 Kd5 g5 h5 a5 e4 e7 e3 e8N e2 a6 e1B g6 d3 a7 h3 g7 d2 Qe2 d1Q Nd2 h4 Qg4 h2 Qg6 h1Q Qf6 h3 Bd3 h2 Ndf3 Nh6 Qh4 Nc6 Be2 Qd3+ Kb2 b3 Nd2 b4 Bf1 Qhe4 Nd6 h1Q Bg2 Ne5 g8B+ Nef7 Qf6 Ba6 Nb5 Qa5 Qg6 Bc5 Nb1 Rd8 a8B+ Kc4 Qg7 d5 Qe5 d4 Qg7 Qh5 Bc6 Ba7 Bd7 Qg6 N1c3 Rf8 Nd5 Bc3+ Kb1 b2 Bf1 Rh7 Nh3 Nh8 Bc8 Rf6 Qe7 Rg7 Be3 Rgf7 Qd8 Rd7 Bg1 Rdd6 Nf2 Rd7 Ne7+ Rd5 Bh3 Qde3 Bf7 d3 Ng8 d2 Bf1+ Q3d3 Bfe6 d1N Be2 Qb6 Ka2 b1N Bf7 Nd2 Bf1 b3+ Ka3 b2 Ka4 b1B Qe7 Re6 Qg5 Qc5 Ng4 Rf6 Bd4 Nf2 Bfe6 Nh3 Nf2 Bb7 Be2 Bc6 Bf7 Ba1 Ka5 Bc3+ Ka6 Be8+ Kb7 Qb4 Kc7 Qa5+ Bb6 Bc6 Bfe6 Bb7 Bf1 Ba6 Kc6 Qa1 Bd4 Qa5 Qg3 Kb4 Na3 Nb3 Be3 Ba1 Qg5 Bb2 Bb6 Qde3 Kc7 Rd1 Bec4 Bd4 Kd7 Nd2 Ba2 Qb3 Be2 Bc3 Bd4 Bc4 Bf1 Bf7 Bb5 Bc4 Bba6 Be2 Nb5 Kc4 Nd6+
2K1R1R1/2Bpq1pB/2B2B2/3b1Nb1/2R4n/1Prnn1b1/5P2/1nrqn1bk b - - 0 1 illegal: Other
b2kq1R1/4N2N/p1rn4/2P1P3/1QRrbpR1/q2r2rn/nbK1n3/3N3R b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 b4 f1N+ Kd3 d5 e4 f5 h4 f3 c4 g3 e5 g2 h5 a6 h6 f4 h7 f2 b5 a3 g6 a2 g7 Ne7 g8R Nf5 b6 Bb7 Qa4+ Nc6 Qb4 N1g3 Qb2 f1B+ Qe2 Rc8 Rh5 Nb4+ Kd2 d3 Rg4 d4 Rh2 Be4 b7 Nd6 b8N Rc6 Rg6 Rg8 Kd1 d2 Nf3 g1N h8R Nh3 Rhh6 Bg2 Qf2 Ne2 Rh8 Bh1 Rg1 Rg3 Rg8 Qc8 Rg4 Kd8 Nc3 Bg2 Rb1 a1Q Rc1 Qa3 Ng5 Na2 Nh7 Qe6 Rhh1 Qe8 Qe3 Be7 Qd3 Bf8 Kc2 d1R Kb1 Rd2 Nd1 Bgf3 Qc2 d3 Qa4 Be7 Nd7 Bf8 Nb6 Be7 Nc8 Bg2 Nf2 Rd1 Qb4 d2+ Nd3 Bf8 Kc2 Nb5 Re1 Bc5 Nb6 Bf5 Kb1 Re3 Rg5 Nd6 Rhg1 Rc7 Nd5 Bd4 c5 Bb2 Ne7 Ba8 Rg8 Rc6 R1g4 Be4 Rh1 Rg1 R4g7 Rg5 Rc4 d1R+ Kc2 Rgg3 Rg5 Bd5 Nf2 Rd4 R5g7 Red3 Rg4 Be4 Nd1
2N1NQrk/p2p2q1/r2q1nqB/1P2B2B/nbN4b/4K1P1/7n/nb1B1b2 b - - 0 1 legal: proof: a4 f5 b4 e5 Ra3 f4 Rb3 f3 a5 g5 a6 g4 Re3 g3 Rd3 bxa6 Rd4 a5 Re4 a4 Rf4 exf4 e3 h5 Ne2 h4 Nd4 h3 Qe2 gxf2+ Kd1 Be7 g3 Ba6 Ba3 Bh4 Kc1 Nf6 Kb2 Ng8 Qd1 Bc8 Kc3 Be7 Bc1 Bf8 Ne2 c5 d4 cxd4+ Kd2 Ke7 Rg1 Kf7 Rg2 hxg2 h4 Ke8 c4 Kf7 h5 Kg7 e4 g1B b5 d3 c5 a3 e5 a2 c6 a1N c7 Nf6 e6 Qe8 e7 Bb7 c8B Be4 Qb3 Rh6 Qc2 Kh8 Qc7 Qg6 e8N Be7 Qb7 Na6 Nd6 Nc5 Ne8 Na4 Nec3 Rb8 Be2 f1Q Qa6 f2 Na3 f3 Ke3 d2 Bb7 d1Q Nd5 Bb1 Nb6 Qd6 Nac4 Qh3 Be4 Qhg4 Bd1 Qg7 Nc8 Q4g6 Qc6 Bd8 Qc5 Be7 Bd3 f1B+ Kd2 Bd4 B3e2 Bc3+ Ke3 f2 Qa3 Bb4 Bd2 Rh7 h6 Rb6 Bh5 Ra6 Bdf3 Bh3 Bd1 f1N+ Ke2 Nh2 Ke3 Bf1 Bc1 Kg8 Bd2 Rh8 h7+ Kf7 Bc1 Rf8 h8B Kg8 Qa2 Kh7 Qf2 Rg8 Qf3 Ne4 Qf8 Bh4 Bb2 Nf6 Be5 Q7f7 Bg7 Qfe7 Bh6 Kh8 Bde2 Qeg7 Bd1
4B1n1/3PpK1b/1k1p1b1b/N5BP/1q1N1nbr/n1p1rNN1/6b1/B2Q3r b - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 h5 g4 hxg4 c5 f5 Ra2 fxe4 d4 Na6 h4 Qd7 Rc2 Qc6 Rc4 dxc4 d5 Qd7 d6 Qd8 d7+ Kf7 Rh3 Nb8 Rd3 Na6 Rd2 Nb8 Rd6 cxd6 Ke2 Ke6 Ke3 b5 Kf4 g5+ Ke3 g3 Kd4 c3 f4 g2 a5 b3 a6 b4 c6 b2 c7 g4 a7 e3 Kc4 g3 Nd2 b1B Nh3 g1B Bd3 e2 Ba3 e1R Qc2 b3 Be2 g2 Nf3 b2 Qd1 Bd4 Nf2 g1N Ne4 Bb7 c8N Bf6 Ng3 Bh7 Nb6 b1B Bb2 Bh6 Ba1 Nc6 Bd3 Ne2 Bg6 Nb4 Be8 Rb8 a8N Rh1 h5 Nc2 Nd5 Qa5 Ne3 Qa3 Nef5 Qb4+ Kd3 Kd5 Nb6+ Kc6 Nc4 Kc7 Na5 Na3+ Ke3 Kb6 N5d4 Bf8 f5 Nf4 Bf7 Bh6 Be8 Be5 f6 Bbf5 f7 Bg4 f8B Bf6 Nh4 Bg2 Nhf3 Ng6+ Ke4 Rc8 Kd5 Rc4 Ndf5 Rd4+ Ke6 Nf4+ Kf7 Re4 Nc6 Re3 Na5 Rh4 Qd3 Nc2 Bb2 Bhg5 Nc6 Be5 Bg7 Bh6 Bf6 Bd4 Bg5 Nf6 Qd2 Nh3 Nfe5 Rf8+ Ke6 Ng8 Na5 Na3 Qc1 Re1 Ba1 Rh1 Qd1 Rf7 Nf3 Rf6+ Kd5 Re6 Ne2 Re4 Nfg3 Bf6 Ned4 Re3 Ndf5 Rd3+ Ke6 Nf4+ Kf7 Re3 N5d4
b6K/1nN1bP2/5pb1/2P2kp1/5r1n/1Bp1q3/3BrNbN/BbqN1r1Q b - - 0 1 illegal: No proof kernel
1N4r1/Kb1p1p2/1r1r4/P1r2qRR/1bNPR2n/RnQ2k1p/2r5/1N2qn2 b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 a6 b5 axb5 h5 bxc4 Ba3 c3 g4 Ra5 Bc5 Ne7 Bf2 Ra8 Bh4 gxh4 g5 Ng8 g6 Qf6 g7 Qh6 Bh3 Qg5 Bf5 Qd8 Bg6 hxg6 Kf2 Ke7 d4 Kf6 a4 Kf5 a5 Kg4 e4+ f3 Ke3 c5 e5 b5 h6 g5 e6 b4 h7 c2 e7 c1R e8R c4 Qe2 c3 Qa2 c2 Qb3 h3 Kd3 f2 Kc4 f1N Kb5 Nh6 g8N Qf6 Qe6+ Nf5 Kb6 b3 Nd2 b2 Ndf3 b1R+ Kc7 Rb6 Ra3 Bb7 Qe2 Raa6 Qh2 Nh4 Ne2 Qf5 Nc3 Bb4 Ne7 Rg8 h8R Rd6 Rh5 Rab6 Nc6 Na6+ Kd8 Nc5 Kc7 Nb3 Qd2 Kg3 Nfe5 g4 Nc4 Kf3 Kb8 g3 Nb1 g2 Ka7 g1Q Re4 Qf2 Rg1 Qe1 Ra4 Rd1 Rgg4 c1R Rgg5 Rc2 Nb8 Rdc1 Ra2 Qd5 Ra3 Qf5 Nb2 Rc5 Nc4 Rc2 Qc3+
R4B2/6rq/1r1R1PbB/1b1p3b/pp1r4/2P2n2/2nb1RK1/kqR1QBn1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 c5 b5 cxd4 Kd2 f5 Ke1 fxe4 a4 b6 Nc3 Bb7 Na2 Bc8 Nb4 Kf7 Nf3 Ke8 Nd2 Kf7 Nc4 axb4 a5 Ke8 a6 Bh6 Na5 bxa5 Bf4 Bg7 Bc1 Bf8 f4 Kf7 Kf2 Ke6 g4 Kd5 b6 h5 f5 e5 f6 h3 c3 h2 b7 a4 a7 e3+ Kf3 d3 g5 Kc4 g6 d5 g7 e2 Rb1 e1Q Rb3 e4+ Kg2 e3 Bb2 e2 Qc2 d2 Qf5 d1B Qh3 h4 Ra3 Qc7 Kf3 Nd7 b8B Rh7 Rg1 h1R Qf5 h3 Bc1 h2 Be3 Ne7 g8R Bh6 R8g2 Rg7 Ra2 Kb3 Bd4 Nc6 Be3 Ba6 Rg3 Bb5 Rc2 Nce5+ Kg2 Nf3 Bb6 Nde5 Qc8 Bd2 Rc1 Ka2 Rc2+ Ka1 Qg8 Qb7 B8c7 Rb8 a8R Qa7 Ba5 Rb6 Rb2 Bc2 Qe6 Qb1 Rd8 Bg6 Bd6 Qf7 Bf8 e1N+ Kh3 Qe7 Rd6 Nc2 Kg2 Qf7 Rg4 Qg8 Rc4 Qh7 Rc8 Bh5+ Qg4 Bg6 Ra8 Bh5 Qg3 Bg6 Be2 Bh5 Rc1 Rd1 Bc4 Ng1 Bf1 Bg6 Qe3 Nef3 Qe1 h1B+ Kf2 Rc6 Bc7 Rb6 Bb8 Bg2 Bc7 Bh3 Kg3 Bg4 Kg2 B4h5 Bb8 Be3 Bc7 Rd4 Bb8 Na3 Rf2 Nc2 Bc7 Re7 Bh6 Rg7 Bd8 Bf4 Be7 Bd2 Bf8
Kbq3k1/B1R1pb2/6rn/1PP2Rn1/5rpr/4bn2/3q2p1/RbQ1B1BB b - - 0 1 legal: proof: b4 b5 e4 c5 a4 bxa4 g4 f5 c4 fxe4 b5 h5 Na3 hxg4 Ne2 Nh6 Nc2 Ng8 Nb4 cxb4 Nd4 Nh6 Nb3 Ng8 c5 d6 Na5 d5 Nc4 dxc4 Ke2 Kf7 Ke3 g5 h4 a5 f4 b3 d4 c3 h5 c2 d5 b2 Kd4 b1B d6 e3 Kd5 a3 f5 a4 d7 a2 h6 g3 f6 a3 h7 e2 Be3 e1N Bc1 g4 Rh6 Nc6 Bc4 Nd4 Qf3 Ne6 Kc6 Ra4 Qh1 Nf3 Be3 c1Q Bd5 Rf4 Bc4 Qd2 Bd3 Neg5 Qc1 Qe8 Rh5 Nh6 Bg1 Bb7+ Kb6 Bd5 Ka7 Qc8 d8B Rg8 h8R Rg6 Bb6 Bg7 Rd8 Bf8 Bf5 Kg8 Rd7 Bf7 Rc7 Bd3 Rb1 a1B Be4 Be5 Ra1 a2 Bd5 Bb1 Ba8 Ne6 Rf5 Neg5 Bd5 Nd4 Bh1 Ndf3 Rb7 Bb8+ Ka8 g2 Rc7 Bc2 Rb1 a1R+ Ba7 Ra3 Ra1 Bb1 Qc2 Bg7 Bd4 Qe3 Ra2 Bb3 Qd1 Nh2 Qc1 Qe1 Be3 Bc4 Bf2 Rh3 Bg1 Rh4 Ra1 Nhf3 f7+ Kh7 f8B Kg8 Ra5 Bf7 Ra1 Bd4 Bg7 Be3 Bc3 Qd1 Be1 Qd6 Qc3 Qd2 Qc1
K2R1q2/Bn2k2n/R1b1B1P1/1R2RbQ1/rbb1pP1p/6b1/2prb3/4qB2 b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 axb4 Nc3 d5 Nge2 dxc4 d5 e5 Nd4 exd4 e5 Nf6 Ne4 fxe4 Bf4 Ng8 Be3 Be6 Bc1 Bc8 Ke2 c5 a4 h5 g4 b5 d6 b3 a5 h3 g5 c3 f3 h2 e6 h4 d7+ Ke7 g6 d3+ Ke3 c4 Kd4 b2 Kc5 b1Q a6 c2 a7 c3 Qd2 b4 Bb2 c1B Qc2 d2 Bc4 d1B Ra2 b3 Ba3 b2 Ra1 Na6+ Kc6+ Nc5 Bd3 Bf4 Bb5 Bg3 f4 Nf6 Qe2 Nh7 Qd2 Ba4 Qd5 c2 Rc1 h1B Qg5+ Nf6 Rd1 Bf3 Rd5 Be2 Re5 Qe1 Rb1 Qe8 Kc7 Rh7 d8R Rf7 Ba6 Bc6 Bb4 Rh7 Ba5 Nb7 Bb6 Bg4 Bf1 Be2 Rb5 Rg7 Ra1 b1B Ra6 Ba2 Bg1 Bac4 Kb6 Rb8 a8B Rf7 Ka7 B8d7 Qh6 Nh7 Qg5+ Rf6 Bb6 Rc8 Bg1 Rc7 Bd4 Bc8 Kb8 Rd7 Be3 Rd2 Ba7 Nd6 Bb7 B8d7 Bc8 Nb7 Ka8 Qf7 Qh6 Rf5 Qg5+ Qf6 Rb2 Ra5 Rb3 Ra4 Rb5 Kd6 e7 Qg7 Re8 Bf5 Be6 Qh6 Rc8 Qg7 e8R Be7 Bg8 Qf8 Rb8 Kd7 Bf7 Bd6 Ree5 Bb4 Be6+ Kd6 Qh6 Ke7 Rd8 Rd5 Qh5 Rd2 Qg5+
K1n1nk1q/1p2P2q/1Br1b3/6B1/1R2n3/2RNb1qp/1n1P1pB1/1rqRB3 b - - 0 1 illegal: No possible last move
1BNB1r2/1p4n1/P1n5/1r3BnR/4k1p1/N2bb1K1/1q1bp1pP/1nNr3B b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 c4 d5 a4 dxc4 d5 e5 Qd4 exd4 e5 f5 Ra3 Kd7 Re3 Ke8 Re4 fxe4 f4 Kd7 Kf2 g5 d6 Ke6 d7 Kd5 e6 c5 a5 g3+ Kg2 c3 e7 d3 e8B e3 f5 c2 f6 b3 a6 d2 f7 d1R Nd2 e2 Kf3 b2 Bg2 b1N Bf1 g4+ Kf4 c4 Ndf3 c3 Ng5 Bb4 f8N Nc6 Ng6 Nf6 Ne4 Rh5 Nh3 Qb6 d8B Bf5 Ne5 Nh7 Bg2 Ng5 Rf1 Rb8 Be3 c1B Nhf2 c2 Bd7 Bbd2 Bh1 g2 Nc4 Qb2 Ned6 Bd3 Kg3 Rc8 Beb6 Ra8 Bdc7 Rf8 Nc8 Be3 Na3 Bcd2 Bf5 c1N Ba7 Nb3 Bab8 Nbd4 Ba5 Nde6 Bd8 Bc4 Nd3 Ng7 Nc1 Bd3 Bd7 Ke4 Rf5 Rh6 Ra5 Re6 Rf5 Re5 Be6 Rb5 Rd5 Nf3 Rh5 Ng5 Bf5+
3Q2Nb/1k3b2/R2n1Rq1/bq2NN1P/b1N3n1/1b2qb1n/1P2r3/K1n2Q2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 g3 e5 c3 exf4 Bg2 b5 Nd2 b4 Be4 b3 Bb1 bxa2 g4 axb1Q Nf1 a5 Nd2 f5 Ne4 f3 Nd2 h6 Nf1 Ra6 Qa4 Rf6 Qd1 Rf7 Bg5 hxg5 Ng3 f4 Nf1 Rf5 gxf5 Bb4 Ra3 Bc5 Ra1 Bf8 Kd2 d5 e4 Kd7 h4 Kc7 c4 g4 h5 g5 e5 g3 f6 d3 Kc3 g2 f7 a4 c5 g4 c6 d4+ Kd2 a3 e6 a2 e7 f2 e8Q g3 Qe6 f3 Qe8 Qe7 Rh2 Bb7 Qa4 Nd7 Qa7 Bg7 f8N Ndf6 Ng6 Nh6 Qea8 Ne8 Qa4 Ng4 Qc2 Nd6 Ne2 g1B Qe8 g2 Qc1 Qe3+ Kd1 d2 Nfg3 f1B Nf5 f2 Nc3 Bc4 Nf8 Bf7 Ng3 Qg6 Nge4 f1Q+ Kc2 Qb5 Qa8 Bf6 Nd7 Re8 Qb1 Bh8 Nd1 Re7 Ne5 d3+ Kc3 Bf2 Ng3 g1N Nf5 Be1 Rf2 Nh3 Rf4 Kb6 c7 Bf3 Qd8 Kb7 c8N Re8 Nf2 Re7 Ne4 d1B+ Nd2 Bdb3 Qd1 Re8 Nce7 Ba4 Ng8 Re6 Rb1 a1N Rc1 Nb3 Ra1 Nc1 Ra2 Bh4 Qf1 Bg3 Nc4 d2+ Qd3 d1B Ra1 Qe4 Qf1 Bf2 Ra3 Bb6 Ra1 Bab3 Ra6 Ba4 Kd2 Bdb3 Kc3 Qbc6 Kb4 Ba5+ Ka3 Qd7 Nfh6 Qe3 Rf6 Qb5 Nf5 Qeh6 Nd7 Re2 Nde5 Nd3 Nd4 Qe3 Nf5 Bc2 Ka2 Bcb3+ Kb1 Nc1 Ka1
2b1n2N/n2Q2k1/5r2/5nb1/P3K1b1/nqb1pn1P/1RQ3QN/Q1rbR3 b - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 Qa4 fxe4 Qd1 d5 cxd5 h5 g4 hxg4 a4 b3 Ba6 b2 Na3 Nxa6 Kf1 b1B Ke1 Nb8 Bb2 Ba2 Bd4 Bb1 Ba7 Nd7 Bb8 Nxb8 Ke2 Kf7 Ke3 e5 f4 b5 d4 g5 f5 c5 f6 b4 d6 g3 d7 g4 d5 b3 d6 b2 h3 c4 Nc2 g2 Nb4 c3 Qd4 g3 Ra3 c2 Rb3 c1B+ Qd2 Rh6 Na2 Bg7 Rb5 Bc2 Rh2 b1B Ra5 Bd1 Rh1 Qb6+ Rc5 Qb3+ Rc3 Nc6 d8Q Na7 Ne2 g1N d7 g2 Qa5 Nf3 d8Q g1N Qd4 Nh4 Nb4 Ngf3 Nd5 Ba2 Nef4 Nf5+ Kf2 Kf8 f7 Rf6 Rc2 e3+ Kg2 e4 Qa1 e2 Rb2 Bb1 Qac3 e1N+ Kf2 Ba2 Ne3 Nc2 Nf1 Na3 Nh2 Bh8 Qdd4 Kg7 Ng6 Bg5 Qd7 e3+ Kg2 Rb8 Qc2 Rb5 Re1 Rc5 Qe2 Rc1 Qc2 Nd6 Kg3 Ne8 Kg2 Ne7 f8Q+ Kh7 Kg3 Bb1 Qg2 Bf5 Qg8+ Kh6 Qc4 Bg4 Qcc2 Kg7 Qcf5 Bh4+ Kf4 Bg5+ Ke4 Ra6 Qdd2 Rf6 Qfd5 Nf5 Qc2 Bf4 Qd4 Bg5 Qd7+ Kg8 Qc5 Rc6 Qcd6 Bc3 Qd3 Rf6 Nh8 Kf8 Qdc2 Kg8 Qd6 Kg7 Qd7+
K1RnQrB1/1p3R1R/1rnPr3/n4qB1/1b1p1kp1/Q2r3n/1P4R1/5b2 b - - 0 1 legal: proof: e4 h5 c4 f5 exf5 d6 g4 hxg4 a4 Nc6 a5 Nb4 a6 Nxa6 c5 Nb4 Be2 Na2 Ba6 Rh5 Bf1 Rh8 d4 dxc5 d5 a5 Nh3 a4 Nc3 Nxc3 Ng5 a3 Ne6 a2 Nd4 cxd4 Rb1 a1R Bf4 R1a6 Ra1 Rc6 Bc1 Rc4 Ra6 Ra4 Ra5 Ra1 Ra3 Rb1 Ra7 Rh6 Ra1 Rh8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 g5 h4 g3 h5 g2 f3 g1N f6 Nb5 h6 Nh3 f7 Ra6 h7 Rb6 Bc4 Nd6 Qa4 Qd7 Qa8 Qf5 Bd2 Rd1 Bc3 Rd3 Ra2 Kf4 Bb4 e5 Ra5 e4 Bd2+ e3 Rg1 c6 Rg2 Ne7 Qa7 Rg8 h8R g4 Ra3 Bd7 Rc3 Be6 Rh7 Bd7 Be1 e2 Bh4 e1R Qa3 Re6 Bf6 Ng6 Bh4 Ne5 Rc1 Be7 f8Q Be8 Qf7 Rf8 Qh5 Ndf7+ d6 Nd8 Qf7 Bg5 Qe7 Bg6 Qe8 Bh6 Bf6 Bg5 Bd5 Bh4 Rf1 Be1 Bh4 Rbb3 Bf6 Bb4+ Kb6 c5 Ka7 c4 Ka8 c3 Bh4 Nec6 Bg5+ Ke5 Bc4 c2 f4+ Ke4 Rf3 c1N Rff2 Ba5 Rf3 Rb6 Rff2 Bb4 Rf3 Qb5 f5 Nb3 f6 Qf5 f7 Nba5 Ba2 Rh8 f8R Rg8 Rff7 Rf8 Rff2 Ke5 Bb3 Ke4 Rc2 Ke5 Bf6+ Kf4 Bg5+ Kf3 Bd2 Ree3 Rh8 Qf4 Be6 Ne7 Re2 Be4 Rg7 Qf5 Rc8 Nec6 Rhh7 Bd5 Bg8 Re6 Rd7 Kg3 Rdc7 Bg2 Bg5 Bf1 Rcf7 Kf3 Rg2 Ke4 Bh4 Kf4 Bg5+
k2NqR1b/r1pr4/3b1pNq/1R1bp3/4pr2/3PPN1p/1Q1Q2n1/2K3N1 b - - 0 1 legal: proof: b4 a5 c4 axb4 f4 d5 g3 dxc4 a3 bxa3 Bg2 f5 Be4 fxe4 h4 Qd3 h5 Qd6 f5 Bd7 g4 Bc8 g5 Qd8 f6 Nd7 Bb2 Ne5 f7+ Kd7 Bd4 Ng6 Bf6 gxf6 hxg6 Kc6 Qa4+ Kd6 Qd1 Kd7 d3 Kc6 Kd2 h5 g7 b5 g6 Kb7 Kc2 a2 Nd2 c3 Qe1 b4 Qh4 b3+ Kc1 b2+ Kd1 b1R+ Kc2 Rf1 Ngf3 Ra7 Re1 a1B Qh3 h4 Qd7 Rh7 Qb5+ Ka8 Qb2 Bb7 Ng1 Qe8 Rb1 Rf4 Ndf3 Nh6 g8N Nf5 g7 Bd5 Nh6 Ne3+ Kc1 c2 g8Q Bg7 f8N Ng2 Ng6 Bh8 Nf7 e5 Nd8 Rd7 Qf8 h3 Qfb4 Rh4 Qd2 Rf4 Qbb4 Bd4 Qb2 Bc5 Rh2 Ne3 Rg2 Bd6 Rg5 Ng2 Rh5 Rg7 Rh7 Re7 Rf7 Rd7 Rf8 Ra3 e3 Ra1 Nh2 Ra6 Qa3 Ra7 Kb2 c1Q+ Ka1 Qe1 Kb2 Bb4 Nhf3 Qh4 Kc1 Bd6 Rb5 Qh6 Qab2
rQ1K4/2nN1b2/k1Q2QPr/q2Qnn2/4N2R/1R1qn2P/q3rr1n/b1n5 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 d5 axb4 d6 g5 Kd2 f3 Bh3 f2 Bb2 cxd6 Be5 d5 Bf4 gxf4 g5 d4 Bg4 hxg4 Kd3 f1N Ke4 d5+ Ke5 Kd7 c4 Kc7 a4 Kb6 e4 f5 h3 g3 c5+ Ka6 g6 b5 a5 f3 c6 g2 c7 d3 Qb3 f4 Qb2 d4 Qa3 d2 Rh2 d1Q Ne2 g1N Qd3 f2 Qc3 b3 Ra4 b4 Qf3 b2 Ra3 d3 Qg3 f3 Qh4 d2 Nd4 b3 Nc3 b1Q Ra2 b2 Qe7 Bg7+ Qf6+ Be6 Nde2 Nc6+ Kf4 Rh6 Kg5 Nge7 e5 Nd5 Ra4 Qa2 Nf4 b1R Ne4 Bf7 e6 Nfe3 e7 f1N e8Q f2 c8Q+ Rb7 Rb4 Nf5 Qb8 Nc7 Nd5 Ne2 Nb6 Ne5 Qc6 Nc1 Rb3 Bh8 Rg2 Nh2 Rg4 f1R Rh4 Rf2 Qe7 Qd5 Rb5 Neg4 Rb2 Raa7 Na4+ Rb6 Rb5 Ba1 Qee6 Ne5 Kf6 Qd3 Qcd5 Rc6 Rb3 Qe1 Nb6 Rc2 Qe7 d1N Qed6 Ng7+ Ke7 Rce2 Kd8 Nf5 Qf6 Qb4 Qd4 Kb5 Qdd6 Qc3 a6 Nde3 Qde6 Qd3+ Qd6 Rb7 a7 Ka5 a8Q+ Ra7 Qab7 Ra8 Qc6 Ka6 Qdd5 Qba5 Nd7+
K1b1Q1kr/pN4n1/bb5r/q2bq1P1/2Rq4/3P1QNr/N1RN2b1/r3n3 b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 c5 bxa4 c6 g5 Ra2 g4 Ra1 dxc6 Na3 c5 Nb1 c4 b3 g3 Ba3 Qe7 Bc5 Qd8 Bf2 Na6 Qc2 gxf2+ Kd1 Nb8 Kc1 Nd7 Qd1 Nb8 g4 h5 g5 Qd4 Bh3 Qd8 Bg4 hxg4 Kb2 f1B Kc3 f5 h4 Kf7 e4 c5 b4 f3 b5 f4 h5 f2 b6 g3 h6 f3 h7 a3 b7 g2 e5 a2 Qc2 Ne7 Rh6 Qa5+ Kb2 c3+ Kb3 Na6 b8Q Nb4 Qc1 c2 Ne2 g1Q Kc4 Nf5 Qb5 Ng7 Ra6 Bg2 Nec3 Nd3 Kd5 f1B Kc6 c4 Qd1 Bc5 e6+ Kf8 Qb8 c1R e7+ Kf7 e8N Ne1 Rb6 Qd4 Nf6 f2+ Nfe4 Qe5 Rb5 Bb6 Rc5 Be2 Qb3 f1B Qd1 Beg4 Qf3+ Bgf5 Ng3 Qd4 Nce2 c3 Rc4 c2 Nec3 Rd1 Qe5 c1R d3 Ba6 Nd2 Rae8 Qb8 Re3 Rb1 a1Q Rb2 Bh1 Rc2 Bfg2 Qc8 Qb2 Qb8 Ra1 Na2 Qde5 Qa8 Qbd4 Qc8 Rf8 h8N+ Kg8 Qb8 Bfc8 Nf7 Rdb1 Nd8 Rf6+ Qd6 Rh6 Qg6 Rb5 Nb7 Rd5 Nb4 Rd8 Qe6+ Kh7 Na2 Rh8 Qd6 Kg8 Qg6 Rh3 Qh5 Re4 Qg6 Reh4 Qe8+ Kh7 Qd5 Bf1 Nd6 Rh6 Qg2 Be2 Qd5 Beg4 Qf3 Bg2 Qd7 Kg8 Qe7 Bce6 Qd7 Bb5+ Kb7 Ba6+ Ka8 Bd5+ Nb7 Bf5 Qc6 Bc8 Qe8+
bnb5/2QpPq1B/6nb/r1r5/1Q2N1B1/b2P3r/Nkb5/1b1rnQKQ b - - 0 1 legal: proof: b4 a5 h4 axb4 g4 e5 a4 c5 f4 exf4 g5 c4 Ra2 f3 Rb2 h6 Rb3 cxb3 Rh3 Ra6 Bb2 Ra8 Bf6 gxf6 g6 f5 Rg3 f4 Rg5 hxg5 Kf2 Ke7 e4 Ke6 c4 Ke5 g7 Kd4 d3 f5 c5 b5 e5 g4 c6 b2 c7 g3+ Ke1 f2+ Ke2 b3 e6 g2 a5 f3+ Kd2 b4 h5 f4 h6 Ne7 g8B Qe8 h7 Qf7 a6 Bh6 a7 Ng6 Na3 b1R e7 b2 Qb3 Rc1 Qa4 b1B Nc4 b3 Qa2 b2 Na5 Rc5 Nc4 Bc2 Be2 b1B Qa4 f1R Qa5 f2 Bg4 Rd1+ Ke2 f1B+ Kf2 f3 Nd2 Be2 Qa4+ Kc3 Ne4+ Kb2 Qa5 Bf1 Ne2 g1B+ Kg3 f2 N2c3 Bh3 Na2 Bf1 Qe1 Be2 Kg2 f1N Kh1 Ne3 Qf1 Bf2 Kh2 Be1 Kh1 Bf3+ Kg1 Bb7 c8Q Bb4 Qc6 Ng2 Qc8 Ne1 Qc7 Nc6 Ng5 Ba3 Ne4 Rb8 a8Q Bc8 Qaa5 Rbb5 Qd2 Nb8 Qb4+ Qb3 Nf2 Ba8 Ne4 Ra5 Bd5 Rf8 h8Q+ Rf6 Qh7 Rf3 Bg8 Rh3 Qh8+ Bg7 Qh5 Bf8 Bh7 Bh6 Qa4 Qf7 Qh4 Re3 Qh1 Rh3 Qb4+
1N1Br1n1/p1Q2br1/1PKN2r1/qn3n1q/1NQP2q1/3N1p1B/k1q2b2/3b4 b - - 0 1 illegal: No possible last move
B1qB4/2nrbn1K/3P1r1p/2Q5/1q3q1k/2b1Pqp1/1b1QbBN1/bNB5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 e5 c5 exf4 c6 dxc6 Ra2 c5 Ra1 c4 b4 Ne7 h4 Qd6 g5 Na6 Ra3 Bg4 Rg3 Bc8 Rg4 hxg4 h5 Qd8 h6 Ng8 h7 Nb8 Rh6 gxh6 Kf2 Ke7 d4 c5 g6 Kf6 e3 Kg5 b5 a5 b6 f5 d5 g3+ Kf3 c3 g7 c2 d6 c4 b7 a3 Bb2 c1Q Nc3 a2 Bg2 a1B Na2 c3 Qd5 c2 Bf1 a4 Be2 a3 Bc4 Be7 Qc6 Qa5 Qc7 Ra7 Be2 Qb4 Bb5 Nf6 g8Q+ Kh4 Qb6 Ne8 Ne2 Nd7 b8B Ba6 Qc4 Rf8 h8B Nc7 Qa5 Rf6 Nac3 a2 Bc6 Bb5 Nd4 Ne5+ Ke2 Nf7 Kd3 f3 Ba8 f2 Nb1 f4 Ke4 f1Q Qc5 f3 Bg7 Qce1 Bc1 f2 Bh8 Qbc4 Qd2 Bc3 Bg7 a1B Bh8 Re6+ Kf5 Qb4 Bg7 Be2 Be5 Qg2 Bg7 f1Q+ Nf3+ Kh5 Bh8 Qb7 Bf6 Qc8 Bg5 Rb7 Ba7 Qgh1 Bb6 Qh4 Ba5 Ra7 Ba3 c1B Bf6 Bc1b2 Bg5 Bf8 Bd8 Be7 B5b4 Qd1 Ba5 Qb3 B5b4 Qg2 Ne1 Qd4 Ba5 Kh4 B5b4 Re5+ Kg6 Qf4 Ba5 Rf5 Kh7 Qgf3 B5b4 Rf6 Ba5 Bd4 B5b4 Bbc3 Bc1 Qb2 Ba5 Qb4 Qa2 Bd2 Qac4 Ne6 Q4d5 Qa4 Nd3 Rd7 Qa2 Bb4 Qac2 Ba3 Be1 Qb4 Qd2 Nc7 Bf2 B3b2 Ne1 Bdc3 Ng2+
N5bn/2N3NR/p1P1b2p/bkN5/1nq1n2r/QP1r2Q1/2bR1nK1/1nq5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 g5 cxd4 Bg2 e5 Bh3 exf4 g6 Bb4+ Bd2 Bc3 Bg4 hxg4 h4 Ne7 h5 Bb7 h6 Bc8 h7 Bb4 Bc3 Bc5 Bb4 Ng8 Ba3 Bf8 Be7 Nh6 Bg5 Ng8 Bh6 gxh6 Kf2 f5 c4 d5 e4 Kd7 g7 Kc6 b3 a3 e5 f3 c5 d3 e6 g3+ Kf1 f2 e7 d2 e8N f4 Nf3 d4 Qc1 d1N Rh4 d3 Ng1 d2 Nc3 a2 Rg4 g2+ Ke2 f1B+ Kf3 Nd7 Na4 Ndf6 Nh3 g1Q Qc2 Qc7 Nd6 Ne4 Qd3 Ne7 g8N Ng6 Nb5 Ndf2 Ng5 d1B+ Qe2 Be6 Nbc3 Bc2 Rb1 a1N Qd2 Bfc4 Nf6 Qc1 Ncd5 Kb5 Qe3 a6 Kg2 Rc8 Qg3 f3+ Kh2 Rd8 Ne8 Rg8 Nab6 Nh8 Ng7 Qf7 c6 Bb4 Na8 Ba5 Rb2 Rge8 Nf6 Rd3 Nd7 Rd8 Nc5 R8d4 Ra2 Qff4 Rb2 Bg8 Ra2 Bce6 Rb2 Qd6 Rf4 Qd5 Rf7 Qc4 Rd7 Ng4+ Kh3 f2 Kg2 f1N Ra7 Ngf2 Rc7 Ng6 h8Q Nfd2 Qh7 Nh8 Ra7 Bd7 Ng5e6 Nb1 Qf5 Bc8 Qf8 Bd7 Ne8 Bc8 N6g7 Bce6 Re7 Rd5 Ra7 Rh5 Ra2 Rh4 Qfd6 Bd1 Rd2 Nc2 Nec7+ Kb4 Nb7+ Qc5 Nd5+ Kb5 Nf5 Qc3 Qa3 Qb4 Nc5 Qc4 Rh7 Nb4 Ng7 Bc2 Ndc7+
2r5/1rp1q2r/1P1b1rN1/3BBr2/Pn3Q1p/1b2q1bK/k1N3B1/n2b2QB b - - 0 1 legal: proof: a4 a5 g4 b5 c4 bxc4 b4 e5 d4 exd4 b5 g6 h4 Qf6 h5 Qd8 Rh4 gxh5 g5 f5 Rg4 fxg4 Ra2 Kf7 Rb2 Ke8 Rb4 axb4 f4 Kf7 Kf2 Ke6 Kg2 Kd5 e3 d3 f5 d2 g6 b3 g7 h4 f6 h5 f7 h3+ Kh2 h4 Na3 g3+ Kh1 g2+ Kh2 b2 Ne2 b1R Qc2 d1R Nd4 g1B+ Kh1 c3 Qb2 c2 Nb3 h2 Kg2 h1R Qf6 Nc6 Nc5 Nge7 g8B Rh7 Qf2 Nf5 Ne4 Nfd4 Nd2 Nb3 Bb2 c1Q Bc3 Bd6 Nf3 Qe7 Ba1 Nb4 Bd3 Bgh2 Ne5 Rdf1 Be2 Bg3 Qg1 Rf6 f8Q+ Kc5 e4+ Qe3 Bc3 Na1 Ng6 Bb7 Be6 Bd5 Be5 Bb3 Bd5 Rc8 Nc2 Rbf1 Qh6 R1f5 Qf4 Rh3 Bf3 Rh1 Qh2 Rb1 Kh3 Rb2 Bh1 Rb1 Bb7 Kc4 Qg1 Rb2 Nd4 Rb1 Bd5+ Kc3 Bg2 Kb2 Nc2+ Ka2 Bc3 Bc5 e5 d6 e6 Rb2 Bc4 d5 Be5 d4 Bcd5 d3 Bh1 d2 Bhg2 Qd8 e7 d1B e8B Bd6 Bec6 Qd7 Bh1 Qe7 Bdg2 Rb1 Bcd5 Rc1 Nd4 Rc6 Nc2 Rb6 Bde4 Rbb8 b6 Rb7 Bd5
2qqn3/5nkB/5P1b/1b1P2n1/1b1Q1p1R/3R1rr1/Q2BbrpQ/K3Q2n b - - 0 1 illegal: No possible last move
3N1B1b/P2qQ1r1/P3nnb1/4N2b/bK1nk1p1/1bp2b2/Q1BQ4/1Qr2n2 b - - 0 1 illegal: Other
1r1k1n2/1Q2N3/2pb1r2/Pr3p2/1q1Nb2p/brPn1q2/2B1BrQ1/KBB5 b - - 0 1 legal: proof: b4 g5 a4 e5 h4 a5 d4 exd4 h5 axb4 Kd2 Qf6 Ra2 Qxf2 g4 h6 Rh4 Qg2 Ra3 Qh2 Rg3 gxh4 g5 Qg2 g6 Qf2 Rg5 hxg5 c3 d5 Kc2 b5 Kb2 f5 g7 b3 a5 g4 h6 d3 h7 d4 Bh6 g3 Ka1 g2 e4 b4 e5 b2+ Ka2 d2 e6 d3 e7 b3+ Ka3 Qb6 Nh3 g1B Bg2 Ra6 Qf1 d1Q Nd2 b1R Bh1 b2 Ka2 Bb7 Bg2 Bc5 Nf3 d2 Qb5+ Nd7 Qb3 Ne5 Qc4 Ba3 Nf4 Be4 Qf1 Nf6 g8B Nfd7 Bb3 Nd3 Nd5 Qb4 Nd4 Qf3 Bc2 d1R Bc1 Rd2 Qf2 Rg8 h8Q Rf6 Qg7 c6 Bh1 Rh8 Qfg2 Rf2 Qh7 Bh6 Qhg7 Nf8 Qh7 Kd7 e8B+ Kd8 Qb7 Bf4 Ne7 Be5 Bh5 Bd6 Bf4 Rbf1 Bg5 b1R Bc1 Rb3 Ka1 Rd1 Bb1 Rdd2 Bf7 Rdb2 Bc4 Qc5 Bc2 Rb5 Ba2 R2b3 Bab1 Qb4 Qh3 Qe2 Bf3 Qd1 Bh5 Qf3 Qg2 Qf4 Be3 Nd7 Be2 Ke8 Nd5 Qf3 Nb6 Ke7 Bg5 Rb8 Nd5+ Kd8 Bc1 Nf8 Ne7
k2q2Qb/n1b4n/Q3q2p/3BBN2/2p4P/NrB4P/1r1b1nBp/q2b1K2 b - - 0 1 illegal: Other
1nr3Q1/4NPBb/4B3/qQ1KB1kq/1P2r3/2b4q/pnp2nnp/2r1NB2 b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 g5 Ra3 f5 Ra1 fxe4 b4 h6 g4 Nf6 Rh4 Ng8 Ra3 Nc6 Rg3 gxh4 g5 Nb8 g6 Bb7 Rg4 Bc8 Rg5 hxg5 Ke2 e5 Ke3 Ke7 f4 Kf6 d4 c5 g7 a5 d5 c3 f5 g4 d6 a3 h6 g3 d7 g2 h7 a4 Qd4 c4 Qb6+ Kg5 f6 a2 f7 a1Q Qe6 h3 Qb6 a3 Bd2 c2 Qd4 c1R Be1 a2 Qd2 c3 Bf2 c2 Bd3 h2 Bf1 Nh6 Qd5 Ng4+ Kd2 e3+ Kd3 e2 Ke4 e1N Ba7 Nf2+ Ke3 Qc3+ Qd3 e4 Bd4 Qa5 d8Q+ Be7 Nd2 Re8 g8B Bf5 h8B Bf6 Bg7 Bh7 Ne2 g1Q Nf4 Qg4 Nd5 Qh5 Be5 Qb3 Kd4 e3 Ne7 e2 Qc8 Ng2 Qb5 Qbh3 Kd5 e1N Qd8 Ned3 Nf3+ Kg4 Ne1 Kg5 Qc8 Nb2 Qd8 Bg6 Bh7 Bf5 Bg3 Bc3 B3e5 Bd3 Bf5 Be4+ Kc5 Bd3 Be6 Bh7 Qd1 Rc8+ Kd5 Ra7 Qd4 Rac7 Qb6 Rc4 Qd8 Re4 Qg8
1n6/1q2p2k/bQb5/nP2KprQ/R1B1br1r/Q3rB1n/2p1RP2/2b2Q2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 d5 b4 b5 Ba3 bxc4 b5 dxe4 Bb4 axb4 g4 h6 Nf3 Ra5 h5 Ra6 Nh4 Ra8 Nc3 gxh4 g5 Bg4 g6 Qd7 Ne2 Qd3 Nd4 Bc8 Ne6 Qd8 Ng5 hxg5 Ke2 f5 Ke3 c5 a4 h3 d4 c3 d5 h2 d6 c4 Kd4 c2 h6 c1N h7 c3 a5 g4 g7 Kf7 d7 Kg6 a6 b3 a7 g3 Kd5 g2 Ke6 g1R Qe1 b2 Qd1 b1B Ke5 e3 Be2 Be4 Rb1 c2 Kf4 Qb6 d8Q Rg5 Q1d3 Ba6 Qa3 Qb7 Bd1 e2 Qd5 e1R Qdb3 Nf6 g8B Bh6 Qh3 Nh5+ Ke5 Re3 Re1 h1B Ra1 Nb3 Re2 Na5 Qf1 Nf4 Bc4 Nh3 Qc5 Kg7 Qb6 Bhg2 Ra4 Bc6+ Kd4 Bge4 Ke5 Rd8 Re1 Rd4 h8Q+ Kg6 Qe8+ Kh7 Bh5 Rf3 Re2 Rf4 Bf3 Rd3 Qh5 Re3 Qg4 Nd7+ Ke6 Rh8 a8Q Nb8 Ke5 Bg7+ Ke6 Bb2 Qaa7 Ba3 Ke5 Bc1 Qh5+ Kg7 Qc5 Rh6 Qa3 Kh7 Qg4 Rhh5 Qb6 Rh4 Qh5+
2NqQr2/2p1rb2/3QrP1N/1Q1n2p1/2B2B1p/K1b1n1P1/1n3p2/1q3qkQ b - - 0 1 legal: proof: b4 e5 f4 d5 a4 a5 c4 axb4 f5 dxc4 Ra2 Qd3 h3 Qxh3 Rb2 Qh2 e4 f6 Rb3 Ra7 Rf3 Ra5 Rf4 exf4 e5 Ra8 e6 Kd8 Kf2 Ra7 Bd3 Ke7 Nf3 Ra8 Re1 Ke8 Re5 fxe5 Ke2 Ke7 f6+ Kd6 a5 Kc5 e7 h5 e8Q g5 a6 b5 a7 c3 Nh4 Kd4 Bg6 f3+ Ke1 c2 d3 e4 Kd2 e3+ Ke1 e2 Kd2 e1R Qee2 b3 g3 b4 Bh7 b2 Na3 b1Q Bg6 b3 Bh7 b2 Ng6 h4 Ne5 Na6 Ng6 Nb4 Nf4 Be6 Nh3 Nd5 Nc4 Bf7 Nd6 Nh6 Nc8 Ng4 Nf2 Nge3 Bg8 Rh7 Ng4 Qf2 Nh6 Qf1 Ne7 Rd8 a8Q Qa2 Qb8 b1Q Qb5 Qa8 Nc8 Bc5 Qh2 Rf8 Qh1 Ba3 Qe2 Bb2 Qe8 Be6 Qb5 Re7 Qd1 f2 Qh5 Ke5 Qhe8 Bf7 d4+ Ke6 Na7 Qd8 Nc8 Re2+ Kd3 Bc3 Bd2 Nf5 Kc4 c1N Be3 Nd3 Bf4 Nb2+ Kb3 Re4 Ka3 Nfe3 Bh7 Re5 Bd3 Re4 Bc4 Re5 Ng8 Kf5 Nh6+ Kg6 Bb3 Kh5 Bc4 R5e6 Nf5 Nb6 d5 Kg4 d6 Nbd5 d7 Re5 Qf3+ Kh3 Nh6 Kh2 Qe4 Kg1 Qf3 R7e6 Qe4 Nb4 Qec6 Nbd5 Qd6 Qe7 d8Q Qd7 Qd8e7 Qd8 Q7d7 Re7 Qh3 R5e6 Qh1+
Q1bQ2qN/b2q2p1/2p2rn1/B1Pbn1Q1/rn2p3/3b1BpN/2kP4/Q3K3 b - - 0 1 legal: proof: h4 a5 b4 axb4 a4 h5 g4 hxg4 e4 f5 e5 d5 c3 d4 Qb3 d3 e6 Bxe6 Na3 Bc8 Bb2 f4 Rh3 Ra6 Rc1 Ra8 Rg3 fxg3 Rc2 dxc2 Bb5+ Nd7 Kf1 c1Q+ Kg2 Qd1 Bf1 Nb8 f4 Kd7 h5 Kd6 a5 Kc5 a6 b5 a7 e5 h6 c6 f5 e4 f6 Na6 c4 Ne7 f7 Qd7 h7 Ng6 Qd3 b3 Be5 Kb4 Nh3 b2 Nf2 b1B Bd4 Qb3 Nd1 Bc5 f8Q Ba2 Qf6 Rf8 Qg5 Rf6 h8Q Bb6 c5 Qg8 Ba1 Bd5 Bc3+ Kb3 Nc4 b4 Qd4 Kc2 Be2 b3 Nd6 b2 Nf2 b1B Kf1 g2+ Ke1 g1N Ba5 g3 Nf7 Nb4 Nh3 Nf3+ Kf1 Nfh4+ Bf3 Ne5 Ke1 Nhg6 Qg1 Kb2 Qhh4 Bd3 Nh8 Kc2 Qf1 Rb8 a8Q Ba7 Qg1 Rb7 Qd4 Rb6 Qa1 Ra6 Bb6 Ra4 Ba5 Rf7 Qd8 Rf6 Qg5
3R1Q1b/b3B2Q/qqrPQNKb/1k4bP/3n1bQ1/5brq/2p2q2/1Q6 b - - 0 1 legal: proof: d4 h5 g4 a5 e4 d5 c4 f5 f4 g6 a4 Kd7 b4 axb4 g5 Qe8 c5 Qd8 Bc4 dxc4 d5 Ke8 Ra3 Nc6 Rg3 Nd4 Nd2 Nb5 Rg4 Nd6 cxd6 hxg4 Nb3 fxe4 f5 Rh6 f6 Rh3 Nd4 Rh8 Nf5 gxf5 Kd2 Kd7 Ke3 b5 Kf4 c5 h4 e5+ Kg3 f4+ Kg2 b3 f7 e3 g6 c3 h5 c4 a5 f3+ Kg3 e2 a6 e1B+ Kh2 b4 a7 c2 g7 f2 Kg3 f1Q+ Kh2 c3 Bd2 c1B Qe2 c2 Bc3 e4 Qa6 b2 Qc4 b1Q Nh3 e3 Bf6 e2 Qb3 Bed2 Kg3 e1B+ Nf2 Ne7 Kh4 g3 g8Q g2 Kg4 g1B Qd3 b3 Qgg6 b2 Qg8 Bg5 Nh3 Qf2 Qa3 Nf5 Qe3 Qa1 Rh2 b1Q Nf4 Qb3 Qh7 Bb7 Be7 Rc8 a8Q Rg8 Qa2 Bc3 Qb1 Bfh6 f8Q Rc6 Qfg7 Nd4 Qe6+ Ke8 Rh3 Qdb6 Rd3 Qaa6 Rd1 Ne2 Kf5 Nd4+ Kg6 Be3 Ng2 Bef4 Ne3 Bb2 Ng4 Qh3 Bf8+ Kd8 d7 Kc7 Be7 Nb3 Rd4 Qc5 Qd6+ Kb6 d8Q+ Kb5 Qd7 Bf6 Qe5 Qff1 Rd2 Bc8 Qc1 Bgd4 Qee1 Qf2 Kf7 Qca7 Qf8 Rg6 Nh2 Rg3 Ng4 Bf6g5 Qb1 Bh8 Qee4 Bbd4 Nf6 Qc7 Qee1 Ba7 Kg6 Qcb6 Qf5 Be6 Qed1 Bd7 Qe4 Bg4 Qe6 Bf3 Rd3 Bg2 Qdg4 Bf3 Rc3 Rd6 Rc8 Rc6 d6 Ka4 Qd7 Nd4 Rd8 Ka5 Qde6 Ka4 Qba2+ Kb5 Qb1+
2n1R3/2rq2bq/b1bq2Pr/K1R2k2/b1BRr3/8/PrqQ1r2/5QRR b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a5 Qd3 axb4 Qd1 d3 Nd2 d5 Be2 f6 Nb1 d4 Bf1 Nd7 Be3 Nb6 Bf4 Nd5 exd5 Qd6 Bh6 Qc7 Bf4 Qd8 g4 g5 Nf3 h6 Ne5 fxe5 Bc1 Bg7 f4 Bf8 f5 Ra7 Nc3 Ra8 Bf4 gxf4 Ne4 h5 g5 Rb8 Nf2 Ra8 Ng4 hxg4 Kd2 Kd7 c4 b5 h4 e4 d6 e5 h5 f3 h6 e3+ Ke1 g3 c5 e4 g6 e2 Kd2 e1Q+ Kc1 g2 Kb2 g1Q Kb3 d2 f6 Ke6 c6 e3 f7 e2 c7 f2 h7 d3 d7 Ba6 c8R Ra7 Rh4 Bg7 f8R Qh2 Rff4 Ne7 Qc1 d1B+ Qc2 d2 Ra8 Rc7 Rd4 Qd6 Rh2 Nc8 Bg2 f1R Re4+ Kf5 Rh3 Qeh4 Rhe3 e1R Rh3 Bf3 Qd1 Rf2 Rd4 Re4 Qe2 d1B+ Kb2 b3 Rh1 b4 Rb8 Q8e7 d8Q Qed7 Rg1 Bc2 Rac1 Qhh2 Qf1 Bcd1+ Kb1 b2 Rc3 Ba4 Rc5+ Re5 Ra8 Bfc6 Bd5 Re4 Rb8 Rf8 h8R Qh7 Qh4 Rfe8 Qh2 Rh4 Ra8 Rh6 Qhg2 Re4 Rb8 Rf3 Qd2 Rf2 Re8 B4b5 Kc2 b1R Rh8 b3+ Kc3 b2 Kb4 Ba4 Ka5 Ra1 Rg4 b1Q Rg1 Qc2 Re8 Rd1 Rb3 Rde1 Rh3 Rb1 Rhh1 Rb2 Bc4+
K1b1r1r1/2Q1B2p/2N1nn1P/Q1nkb2q/2q1N1Nq/1N4N1/2n3P1/2r2qq1 b - - 0 1 legal: proof: b4 a5 d4 axb4 a4 f5 d5 c5 d6 c4 Ra3 exd6 Nc3 d5 Nb1 d4 Rd3 cxd3 f4 g6 e4 Qc7 h4 Bc5 e5 Qd8 Rh3 Qe7 Re3 Qd8 Re4 Bf8 Be2 Nc6 Bg4 fxe4 f5 Nb8 f6 Na6 Be6 Nb8 Bf5 gxf5 Kf2 Kf7 c4 Ke6 f7 b5 c5 d5 a5 b3 h5 b4 c6 e3+ Kf3 b2 a6 f4 c7 b3 a7 e2 h6 e1N+ Kg4 d2 Na3 b1R Nb5 b2 Nf3 d3 Nd6 d4 Nc4 Nc6 Nh2 f3 Kf4 f2 Ke4 f1Q Nd6 Nc2 Ng4 Qh4 Nf5 Nd8 Ng3 Bg7 Qf3 d1N Qf4 Rb8 a8Q d2 Qa5 d3 f8N+ Ke7 Kd5 Ne6 Kc6 Nf2 Ne3 d1Q Ng4 d2 Nd7 Nf6 Nc5 Rg8 Nb3 Qde2 Qc4 d1Q Bg5 Nd3 Qcc3 Nec5 e6 Rc1 Qe5 b1Q Qf4 Kf8 e7+ Kf7 e8N Ke6 Nd6 Ra8 Kb6 Kd5 Nde4 Rb8+ Ka7 Re8 Qe3 Nf4 Qec3 Qc4 Qe5+ Kc6 Qe7 Kd5 Qf7+ Ne6 Qe7 Rb6 Ka8 Rd6 Qf7 Rdd8 Qe7 Rg8 Qf7 Rde8 Qe7 Bd7+ c8N Qa1 Qf7 Qad4 Qe7 Qdg1 Qed8 Qde2 Na7 Bh8 Qb8 Bc8 Qbc7 Qef3 Nc6 Qf5 Be3 Qfh5 Bd4 Nd7 Be3 Be5 Bd2 Nf6 Bg5 Nd7 Bd8 Nf6 Be7
Br1b2K1/5P1r/1b1Q1qpB/b2pq1q1/1Bbk1B2/2nr1Qq1/4RnP1/2B5 b - - 0 1 illegal: No proof kernel
1qr1b2B/B2pnBB1/4n3/3r1Q2/Bp1P1p2/3n2bK/1pk2pPQ/3r1bN1 b - - 0 1 illegal: No proof kernel
2b1N1q1/1Qr5/1b2p1Rp/nnrP1p2/1Kb5/R1QQ4/2pprP2/q1Q1Q2k b - - 0 1 illegal: No possible last move
2qNn1bQ/1P1b1r2/NQq1Rp2/N1r1N2K/p1q1Q1r1/3r3P/6k1/1n5b b - - 0 1 legal: proof: b4 b5 c4 bxc4 f4 g5 g4 gxf4 a3 h5 Bb2 d5 Bf6 exf6 Ra2 f5 b5 h4 Rb2 Bd6 Rb3 Bb4 Rg3 hxg3 axb4 c3 Bg2 Qf6 Be4 Qh4 Bd3 Qd8 Bc4 dxc4 d4 Ke7 e4 Kf6 Ke2 Kg5 Kf3 Kh4 e5 c5 d5 a5 h3 f6 b6 c2 d6 c1Q b7 c3 d7 a4 e6 g2 b5 c2 e7 c4 e8N c3 g5 Ra7 b6 Ne7 g6 Na6 b8Q Nd5 g7 Nac7 Nd6 Ne8 Ne2 g1R g8N Rg4 Kf2 f3 Qe1 f4 Kf1+ f2 Ng1 Kg3 Ke2 Kg2 Nc4 f3+ Kd3 Qf4 Nbd2 c1Q Ne7 c2 Qe4 Nc3 Nc6 Nb1 N4a5 f1B+ Kd4 Bc4 Ndb3 Bd5 Nc5 Bg8 Na6 Qdc7 d8Q Bd7 Qb7 Qc8 Qa8 Rc7 b7 Rh7 Kd3 Rf7 Qa7 Qd6+ Qad4 Qf1+ Ke3 c1R Qb6 Rc5 Rh2+ Kg3 Ra2 f2 Nf3 Qc4 Nfe5 f1B Re2 Bg2 Re1 Kh2 Kf2 Bh1 Re3 Rg2+ Kf3 Rd2+ Kf4 Rd3 Re2+ Kg1 Re3 Qde6 Kg3 Rg7+ Kh4 Rg4+ Kh5 Qed5 Qe7 Kf1 Nd8 Qc6 Q4h7 Kg2 Qh8 Rb3 Rd3 Rc3 Rd6 Rd3 Qeh7 Bf5 Qg6 Rf7 Qgh7 Bd7 Re6 Nc3 Qf5 Nb1 Qe4+
1qQ5/NNr2n1P/Qqpr4/q4b2/Qr1N1P2/Bb4K1/pb2k3/2q1N2r b - - 0 1 legal: proof: d4 f5 f4 g5 b4 b5 e4 h5 a4 g4 h4 Bg7 c4 Bf8 d5 Nc6 c5 bxa4 Rh3 d6 Bc4 Na5 Rf3 gxf3 g4 Nc6 g5 Nb8 Ra2 Na6 Rg2 Nb8 Rg4 hxg4 Qc2 Nd7 Qd1 Nb6 Bd3 dxc5 d6 Nd5 exd5 c4 Be4 fxe4 Kf2 Kd7 g6 a5 g7 e5 h5 g3+ Ke3 c3 h6 f2 h7 f1B b5 g2 Kf2 c2 b6 a3 b7 c6 b8Q a2 Nf3 g1Q+ Ke1 a1R Qb6 a4 Qa6 a3 Qae2 e3 Ng5 e4 Qed2 e2 Nh3 a2 Na3 Ra4 Nc4 Rb4 Ba3 c1Q Nf2 Nh6 g8N Bg7 Nh1 Qgb6 Qe3 Bb2 Kf2 e1R Kg3 Nf7 Qee2 e3 Qa4 Rd1 Ne7 Rd4 Qd3 e2 Nf2 e1Q Qe2 Qed2 Nd3 Qdc7 Ne1 Qcb8 Qd3 Bh3 Qe2 Bf5 Qf1 Ba6 Nc8 Rb1 Na7 Rc8 Qe2 Rc7 Qd3 Bc8 Qe2 Bc2 Qd3 Bb3 Qf1 Kd8 d7 Ke7 d8N Kf6 d6 Kf5 d7 Ke4 Nb7 Rd6 d8Q Bf5 Qd7 Qd5 Qc8 Qda5 Qe2+ Kd4 Qf1 Rh6 Ncd6 Ke3 Ndb5 Rd6 Nd4 Ra1 Qa6 Kd2 Ndb5 Ke2 Qd8 Qc4 Qd7 Rad1 Qc8 Qc1 Nf3 Rf1 Ne1 Rh1 Nd4+
7r/6rb/5N2/1k1KQnNR/Np1bQpq1/1P6/4Qq1P/n1nQbrrq b - - 0 1 legal: proof: f4 e5 d4 exf4 b3 c5 Nd2 cxd4 Rb1 a5 Rb2 a4 Nb1 a3 Nd2 Qf6 Nh3 Qb6 Ng1 Qd8 g4 axb2 a4 g5 Bg2 f3 Nb1 h6 Bf4 f2+ Kd2 gxf4 g5 h5 Bf3 Rh6 Bg4 hxg4 Qf1 Rh4 Qd1 Rh8 Kd3 f1N Kc4 b5+ Kd5 f5 e4 f3 c4 f4 a5 f2 e5 g3 c5 d3 e6 d2 e7 g2 c6 Nh6 c7 Nf5 g6 N1g3 g7 f1R g8N Ra7 a6 Nc6 Qe1 d1R+ Qd2 Nb4+ Kc5 d5 Na3 Kd7 Nf3 b1Q Ng1 d4 Qb2 d3 Nh6 d2 Qe5 Ne2 Nh3 Nc2 Rg1 Na1 Kd5 Nc1 Ng4 b4 Qc3 Bg7 Nc4 Bd4 Ng5 Bf2 Qf6 Be1 Nb2 Qc2 Qe5 Qg8+ Nf7 Rb7 a7 Qg5 a8Q Qg6 Ne3 Qg4 Na4 Qa2 Ng5 Qb2 Kc4 Kc6 Nd5 Be6 Qd8 Bg8 c8Q+ Rc7 Qe4 Bh7 Qb8 Rb7 e8Q+ Rd7 Qh5 Rg7 Qbe5 Qa2 Rh1 g1B Qde7 Bd4 Rg1 Qb2 Rg3 Qa2 Rh3 Qb2 Nac3 Rg1 Nf6+ Kb6 Na4+ Ka6 Kd5 Kb5 Q5d6 Bef2 Qde5 Qg2 Ng4 Qh1 Q7c7 Rdf1 Qc2 d1Q Nf6 Be1 Qg4 Qdf3 Qd1 Qbf2 Rh5 Q3g2 Qgf3 Qg4 Qfe2+
1b5K/1pP3p1/N1q1n1PQ/3NN1qn/prBr4/bQ6/2n3b1/1Qnr2kN b - - 0 1 illegal: No proof kernel
1B4B1/3r2Pb/B1npRb2/2bpqB2/1bB2kn1/rr2RR2/n4P2/3K2n1 b - - 0 1 legal: proof: b4 a5 h4 axb4 e4 e5 d4 f5 a4 c6 Na3 bxa3 Ne2 g5 hxg5 Na6 Nc3 Nb8 d5 cxd5 Qd4 exd4 e5 Qe7 Ne4 fxe4 Kd1 Qf6 Ke1 Qd8 c4 Ke7 g4 Ke6 g6 h5 g7 b5 c5 h4 c6 b4 g5 Kf5 a5 a2 g6 b3 a6 d3 a7 h3 c7 d2+ Ke2 d1N e6 h2 e7 e3 e8R b2 Re5+ Kf4 Bd2 b1R Ke1 Qe7 Bh3 Nc3+ Bc1 Rb3 Bg2 Nc6 Bd2 Nf6 g8B Rh7 Be4 Ng4 Rg5 Qe5 Bd3 Bc5 Bc4 Rf7 g7 d6 Rg6 Bf5 c8B Rd7 Re6 Bh7 Rg1 h1N Rg3 Rb6 Rb1 a1B Rb3 Na2 Ba5 e2 Rbe3 Rb3 Bc7 Bb2 Rh3 Ng3 Bb8 Ba1 Kd2 e1B+ Kd1 Ne2 B8a6 Ng1 Rhf3+ Kg5 Bd3 Beb4 Bac4 Qg3 Be4 Bf6 Bf5 Qe5 Bc7 Rad8 a8B Ra3 Bb7 Rb8 Bba6 Rb6 Rh3 Kf4 Rhg3 Bd2 Rh3 Rbb3 Bb8 Bdb4 Rhf3+
k2bn1qB/4pbnN/2K5/b1PBBb1r/1bN1P2n/B5rN/1nb2B2/4q3 b - - 0 1 legal: proof: e4 f5 b4 h5 g4 fxg4 b5 h4 Qf3 a6 Qc3 axb5 Qg3 b4 a4 hxg3 Na3 c5 Rb1 c4 Rb3 cxb3 Nb1 Rh3 Bb2 Rh7 Bc1 Rh8 c4 d5 c5 Qa5 Bh3 Qc7 Bf1 Qd8 h4 Kd7 Bb2 Ke8 Ne2 Qb6 Kd1 Kd7 Bh3 Qd8 Rf1 Nh6 Ng1 Nc6 Ke2 Rg8 Rc1 Ke8 Bf1 Nb8 Rc4 Rh8 Bc1 Ng8 Kd1 Be6 Ke1 Bc8 Bh3 dxc4 Bg2 Nf6 Bf1 Ng8 Ke2 Kd7 Ke3 Kc7 d4 g5 f4 b5 f5 Kb7 h5 g2 f6 b2 d5 b3 Kd4 g3 f7 b4 d6 c3 Kd5 g4 d7 c2 h6 Nf6+ Ke6 Ne8 Kd5 Nc6 a5 Bg7 f8B Nd4 h7 Nf5 Bg5 c1N Nf3 g1B Bg2 B1d4 Nc3 b1Q Bh3 b2 Bd2 b3 Bg5 g2 Bd2 g1N Bg5 g3 Bf1 g2 Bb5 Nd3 Bf4 Qe1 Nb1 Bc3 Bc1 Bb4 Ba4 Bgc3 Ng5 Nfg7 Nh3 Nf3 Na3 g1B Nc4 b1B Ba3 b2 Bb3 Nh4 a6+ Ka7 Kc6 Bh2 Ba2 Bc7 Bb3 Rg8 h8B Bc2 Ba2 b1B Bb3 Ne6 Bh6 Ba2 Be3 Rg3 Bg1 Rb8 Bf2 Ka8 a7 Bd2 Nb2 Bdc3 Bd5 N6g7 Nc4 Bca5 Nd6 Bc7 Nf7 Nb2 Nfg5 Bba5 Nh7 Bcb4 Bg8 Be6 Bf7 Bf5 Bc4 Ba6 Bd5 Qc8 d8B Bc4 Bf7 Bcb6+ Bc7 Qe6+ Bd6 Bd8 Bg8 Qg6 Bd5 Qf7 Be5 Qg8 Bf7 Ba6 Ba2 Bc4 Bb3 Bf7 Bd5 Rc8+ Bc7 Qf8 N7g5 Nf6 Nf3 Rb8 Be5 Bdb6 Nfg5 Rc8+ Kb5+ Rc6 Bc4 Qg8 Nh7 Bd8 Bb3 Kb7 a8N Nfe8 Nb6 Rh6 Bd5+ Ka7 Nc4 Rh5 Kc6 Ka8 Bed4 Bd2 Bf6 Bdb4 Be5
1R2b1kB/R2n2R1/4R2K/7p/3n2RP/1P1b4/nq1pnrpb/3nRrNq b - - 0 1 illegal: No possible last move
K3b3/1nRn4/8/2Bb1P1q/1bB1bbRP/1R1p1pRR/2b2qR1/bk5r b - - 0 1 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 Bd3 d5 Be2 h5 Kd2 b5 Ke1 d3 Bf1 d4 Bd2 Ra6 Bg5 Rd6 Bc1 Rd5 exd5 Qc7 Bb2 Qd7 Bc1 Qd8 Nd2 f5 g4 h4 Qf3 Nc6 Qf4 Nb8 Qg3 hxg3 f4 g6 Ne4 fxe4 f5 g5 Nh3 Bd7 Nf4 gxf4 Kd2 Be6 Ke1 Bc8 Kd2 Kf7 a4 Kf6 c4 Ke5 a5 g2 a6 g1B g5 f3 a7 e3+ Kd1 Ke4 a8R e5 g6 d2 Kc2 d1B+ Kb2 b3 g7 e2 h3 Kd3 d6 b4 d7 e4 c5 e3 c6 Nh6 g8R Bd6 c7 Qg5 d8R Nd7 R8a7 Bb7 c8R Qh5 Rg4 Nf7 Bg2 e1Q Rc2 e2 R7a4 Qf2 Rgg8 e1B Rg4 Bf4 R4a3 Bd5 Ra7 Nd6 Be3 Nb7 Bf1+ Be2 Rdg8 Rh6 Kb1 b2 R1a3+ Bc3 Rb3 Bgh2 Ka2 Bd6 R8g6 Bhf4 Rc1 Rh8 Rd1+ Kc2 Rd2+ Kc1 Rg3 Bb5 R6g4 Bde5 Rh2 Bbc6 Bc4 Rh6 Rba3 b1B+ Kb3 Bbe4 Rhg2 d3 Bc5 Kb1 h4 Rg6 Rda2 Be1 Rh3 Ba1 R2g3 Bb5 Rd2 Rb6 Re2 Bbc6 Rd2 Rb5 Ka4 b3 Rc2 b2 Rb3 Bb4 Rd2 Nf6 Re2 Be8 Rc2 Nd7 Rd2 Nd8 Rc7 Nb7 Re2 Rb6 Rd2 Rg6 Kb5 Rg8 Ka6 Rg6+ Ka7 Rb6 Bb5 Rc6 Be3 Rc1 Ka8 Rh1 Bc4 Kc1 Ra3 b1B Bc5 Bc2 Rc3 Kb1 Re2 Qe3 Reg2 Qf2 Rb3+
n1nB2r1/r1rN1q2/2B1r1P1/2b2n2/4N1N1/qB1kq1PK/2b2p2/b4N1B b - - 0 1 legal: proof: f4 a5 e4 c5 a4 e5 d4 cxd4 h4 g5 f5 f6 b4 axb4 Ra3 bxa3 Qf3 Ra7 hxg5 Ra5 Qf4 Ra8 Rh3 Bc5 Re3 exf4 e5 Bd6 e6 Bf8 Re5 fxe5 Kf2 Ke7 c4 Kd6 a5 Kc5 a6 d5 g3 h5 Kg2 b5 e7 f3+ Kh3 e4 e8N b4 g6 a2 a7 a1B Nd6 d3 Ba3 Kd4 c5 b3 c6 e3 c7 f2 Nb7 e2 Na5 e1R Bd6 h4 Kg2 b2 f6 h3+ Kh2 d2 f7 d1N Nc4 Re6 Na5 Ne7 Bf4 Qe8 Ba6 Nd7 Bc4 Nb6 Bc1 Ne3 Na3 b1R Bd2 Rc1 Bb5 Rg8 Ba4 N3f5 N3c4 Kd3 Nb3 d4 Nd6 Bd7 c8B Rc7 Bb7 Nec8 Ne4 Bc5 f8N Qf7 Ba5 Be8 Kh1 h2 Kg2 Bb5 Kh3 h1Q+ Kg4 Be8 Bbc6 Qf3+ Kh3 Qe3 Nbd2 Bd7 Bb3 Be8 Bb7 Bc6 Nd7 Ba4 Bd1 Bc2 Nf1 Rb8 Nf3 Na8 Bc6 Rbb7 Bb6 Bb3 Ba4 Rcc6 Nb8 Kc4 Na6 d3 N3h2 d2 Ng4 Kd3 Bd8 Rcc7 Bc6 Ba4 Nb8 Bb3 Bf3 d1Q Bh1 Bc2 Nd7 Qdc1 Bd5 Qa3 Bb3 Nab6 a8B Ra7 Bad5 Na8 Bc6
4nRk1/q7/2Nn1bp1/r4nR1/1P2P2b/1N3Nrq/1q1RK1NR/1rr4q b - - 0 1 legal: proof: e4 b5 d4 e5 a4 exd4 f3 bxa4 e5 c5 Qd2 c4 Qd3 cxd3 g4 g5 Bd2 Bb7 Bf4 Be4 fxe4 gxf4 g5 Qc7 g6 Qc8 g7 Qc6 Bh3 Qc7 Bf5 Qd8 Bg6 hxg6 h4 a5 b4 f5 c4 Kf7 c5 d5 c6 f3 h5 a3 h6 f2+ Kf1 f4 h7 a2 c7 d2 c8R d1N Nc3 d3 Nb5 d4 Rh5 d2 Rc3 d3 Na3 a4 Nb5 a3 Rh6 Nd7 Rh2 Qc7 Rc2 Qa7 Nf3 Ngf6 g8N Ne8 Rh1 Be7 Rh2 Nc5 Nh4 Nb7 Nc3 Nbd6 Rac1 a1B Rb2 a2 Nf5 Bh4 e6+ Kf8 e7+ Kf7 Kg2 Ne3+ Kf3 d1Q+ Ne2 d2 Nd4 Nef5 Rc5 Qf1 Ng1 d1R Rd2 Rc1 Nb3 Qh3+ Ke2 f1R Nf3 Baf6 Nh6+ Kg7 Ng4 a1Q Ne3 Qb2 Ng2 Rb1 Rb5 Rfc1 Rd5 Rf8 h8N Kg8 Rb5 Rf7 Rd5 Rh7 Nf7 Rh5 Rc5 Rg5 Nd8 Rg3 Nc6 Nfg7 Rg5 Ngf5 Nfe5 f3+ Kd3 f2+ Ke2 Rb8 Nf3 Rb5 Nb8 Nc7 Nc6 Ra5 e8R+ Kf7 Re5 Nce8 Re7+ Kf8 Kd3 Kg8 Rf7 f1Q+ Re2 Qd1+ Rd2 Qdg1 Ke2 Qh1 Rf8+
nbn3nB/B1n2p2/1p1P2B1/Q3p3/3q2PQ/1B1kr2B/n3r2b/Q2b3K b - - 0 1 legal: proof: b4 c5 f4 cxb4 a4 e5 fxe5 a5 Nf3 d6 Nc3 g6 Nd5 g5 Nf4 gxf4 Ng1 Bh6 Ra3 Bf8 Rd3 b3 Rd4 Qg5 Re4 Qd8 Rb4 axb4 g4 Kd7 e4 h5 e6+ Kc7 e5 h4 e7 Kd7 e6+ Kc7 Ne2 Kb6 Ng3 hxg3 h4 Bh6 Bd3 Bf8 Rh2 Kc7 Re2 Kc6 Re5 dxe5 Kf1 Kc5 Kg1 Kd4 e8B b6 c4 g2 e7 f3 h5 b2 c5 b1N h6 b3 a5 b2 h7 Bf5 c6 Nc3 a6 b1N c7 Nd5 c8Q Nc6 a7 Nbc3 Ba3 Na2 Bd6 Nc7 Qa6 f2+ Kh2 g1B+ Kh1 f1N Qa5 Bd7 Bg6 Ne3 Bh5 Kd3 Qa1 Bf5 Bd7 Ned5 e8Q Bh2 Be6 Nce7 Qc6 Rc8 a8B Bg6 Bb7 Na8 Bb8 Ndc7 Ba7 Qd4 Bb3 Rd8 Qe6 Nc8 Bg2 Bd6 Qe7 Be4 Qg5 Bf3 Qh4 Bd1 Bh3 Nb5 Qa3 Bb8 Qb4 Rd5 Qa5 Nbc7 Qg5 Nf6 Qh4 Rhd8 h8B Ng8 Qf2 Rc5 Qh4 Rc3 Bg2 Ke2 Bh3 Re3 d3 Qc5 d4 Kd3 d5 Qd4 Bg7 Rd6 Bh8 Rf6 d6 Rf2 Qa3 Rd2 Qa5 Rde2 Bg6+
nq2n1r1/8/b1r1Pp1P/2k1pB2/6B1/1bPN1KRn/2q1N2Q/bbn1b2R b - - 0 1 legal: proof: d4 h5 b4 e5 g4 hxg4 f4 a5 d5 axb4 d6 cxd6 e4 Be7 Bb2 exf4 e5 Bf8 e6 Rh4 Bf6 Rh8 Be5 dxe5 Kf2 Ke7 a4 b5 h4 d5 a5 Kd6 h5 g5 a6 d4 h6 b3 a7 b2 Ne2 g3+ Kg2 f3+ Kh3 b4 Kg4 b3 Rh2 d3 Qd2 f2 Ra3 g2 Rh3 g1B Qa5 d2 Nbc3 d1B Qa6+ Kc5 Kf3 b1B Na2 g4+ Kg3 b2 Rf3 Nd7 Qb7 Ngf6 Rh2 Nb6 Rf5 Ne8 Rg5 f6 Rg7 Rg8 Bh3 f1N+ Kg2 g3 Rh7 Bd4 Rg7 Nd2 Nac3 Nb3 Qd7 Nc1 Rf7 Ba6 Bf5 Rc8 a8B Rc6 Rh1 Qb8 Kf3 g2 Rg7 Be7 Bb7 Na8 Na2 Bd6 Nb4 g1N+ Ke4 Nh3 Rg3 Bc7 Kf3 Ba5 Qf7 Bc3 Qh5 Bd4 Nd5 Be1 Nf4 Ba2 Bg4 b1Q Bf5 Ba1 c3 Bdb3 Nd3+ Kd6 Qh4 Qc2 Qf4 Bb1 Bg4 Rc7 Be4 Rc6 Bef5 Kd5 Rgg1 Kd6 Qh2 Kd5 Rg3 Kd6 Nf2 Kc5 Nd3+
1r1NN1R1/r1PP1nq1/5R2/2B4K/1b1qb1p1/Pb2BQq1/qnn4p/b6k b - - 0 1 legal: proof: h4 d5 g4 c5 e4 dxe4 b4 a5 h5 a4 g5 cxb4 g6 fxg6 Rh2 gxh5 Rh1 h4 Bc4 h3 Bb3 axb3 Ke2 Kd7 c4 Kc6 f4 g5 d4 h5 f5 e5 a3 b5 f6 h4 c5 Kd5 c6 b2 c7 e3 Kf3 e2 f7 e1N+ Kf2 Ke4 d5 b3 d6 b4 Bf4 g4 Bc1 h2 Bh6 h3 Kg3 Nc6 Bg5 Nh6 Kh4 Nc2 Be7 Bg7 f8B Na5 Nf3 Be6 Qg1 Nc4 Qf2 Ra7 Rf1 h1B Ng1 h2 Ne2 Nf7+ Kg3 Bg2 Qf5+ Ke3 Nc1 e4 Nd2 b1Q Rf4 b2 Nf3 b3 Qd5 Qa2 Nh4 b1Q Bf6 b2 Ne2 Qe1+ Rf2 b1Q Nd4 Nb2 Nc6 Qe7 d7 Qbd1 Rc1 Qd4 Nd8 Bh1 Qf5 Bb3 Rb1 Qec3 Rf3+ Ke2 Qd5 e3 Nf5 Bg2 Rff1 Be4 Bg5 Rg8 Kh4 Bf6 Rfc1 Kf3 Rf1+ Kg2 Kh5 e2 Ng7 e1B Ne8 Qg3 Be3 Bb4 Rf5 Qee5 Bc5 Bh8 Rg5 Qg7 Rf1 Rf8 Rff5 Kh1 Qc6 Qgf6 Rg8 Qg7 Nd6 Re8 Rf6 Rf8 Ne6 Rc8 Nd8 Rb8 Ne8 Qf8 Qa6 Nd3 Rb6 Qd5+ Rg5 Ba1 Rf6 Nb2 Qe2 Qd4 Rg8 Qg7 Qf3+
R3r3/1Kb3bR/P1pBpn2/2Qrn3/3rbB2/4PN1P/p2N4/nb1k1rq1 b - - 0 1 legal: proof: g4 h5 c4 f5 c5 fxg4 c6 h4 Qb3 dxc6 Qd3 c5 Qg3 c4 b4 hxg3 a3 a5 e3 c3 Bc4 axb4 Ba2 b3 Kf1 bxa2 Ke2 Bd7 Ke1 Bc8 f4 Kd7 Ke2 Kc6 d4 Kb5 Kd3 Ka4 Ke4 Kb3 d5 Kc2 d6 b5 Kd5 g5 h3 b4 d7 e6+ Kd4 g2 a4 b3 f5 b2 f6 g3 a5 g4 f7 Nc6+ Kc4 Kd1 Kb5 c2 a6 Ne5 Nf3+ g1B Ka5 g2 Nh4 g3 Nd2 b1B Nb3 Rh5 Rh2 Bg7 f8B Nf6 Kb5 Bb7 Kc5 Be4 Ba3 c1N Bd6 c6 Nd2 Qg8 Kb6 Nb3 Kb7 Re8 d8Q Bf2 Nhf3 g1R Qb8 g2 Qa7 Bg3 Qc5 Rf1 Bb4 g1R Rg2 Bh2 Rg4 Bf4 Rh4 Rg4 Ba5 Qf7+ Bac7 Qg6 Bb8 Rf5 Rh7 Rh4 Rh6 Qg1 Rh7 Ke2 Qc1 Nc4 Be7 Bd5 Ba7 Bc2 Rb1 Na1 Bb8 Re5 Rb5 Bb1 Ka8 Rg5 Qa3 Kd1 Qc5 Bg3 Rb7 Rd4 Ra7 Bde4 Kb7 Rgd5 Ra8 Bh2 Bf4 Bg3 Bg5 Bc7 Bd6 Ne5 Bf4
bK1R2br/2Pk2P1/1R1rp3/3B1r1n/1q3Pb1/Q1p1n1p1/BN4rb/N3n3 b - - 0 1 illegal: No proof kernel
K1N1q2n/5r2/2R1b1k1/1pqB1B1n/Prp3b1/3n2Np/P2b1P1n/5bRQ b - - 0 1 illegal: Other
5Q2/BP1Pn3/rp1K1P1N/2n2R2/5n1b/3p4/pBR1n3/nqr1k1qR b - - 0 1 legal: proof: h4 g5 e4 f5 exf5 gxh4 Ke2 a6 Ke1 a5 b4 axb4 a3 Ra7 Bb2 Ra6 Bc1 Ra8 c4 bxa3 c5 Bg7 c6 Bf8 d4 b6 d5 Ba6 d6 Bb7 cxb7 c6 Bc4 Nh6 Be6 dxe6 Nc3 Ng8 Nd5 exd5 Ke2 Kd7 Kd3 e5 f4 h5 g4 e4+ Kd4 e3 Ke5 h3 f6 c5 f5 Kc6 d7 Kb5 g5 Kc4 g6 Kc3 g7 d4 f7 d3 Ra2 c4 Rhh2 h4 Rhb2 h2 Rb4 h1N Rh2 a2 Nh3 e2 Rb1 e1N Bh6 Be7 f8B Ng2 Bf4 Na6 Bg3 Nf4 Qf3 Nc5 Qf1 Ra6 Bf2 Kd2 Rb3 c3 Rg2 c2 Rb5 c1N Ng5 h3 Nf7 h2 Nh6 Ng3 Bd4+ Nge2 Bb2 Bh4 Kd6 Ne7 g8R h1Q R8g3 N1b3 Rh3 Qg1 Rh1 Qc8 Bfg7 Qg8 Bge5 Na1 Qf2 Qb3 f6 Na4 Qc5 Ke1 Qc8 Qc2 Qf8 Qb1 Rc5 Rg8 Rg5 Rh8 Rc2 Nc5 Rf5 Rg8 Qg7 Re8 Qf8 Rc8 Rd2 Rca8 Kc7 Ncb3 Bd6 Neg6 Kc6 Rc8+ Bc7 Ne7+ Kd6 Nfg6 Bb8 Rc1 Rc2 Nc5 Ba7 Ngf4 Bd4 Kd1 Be5 Ke1 Bb2
6rR/7b/P3NqrP/1pKN2kb/Brb4b/1B3rP1/8/1nnNbr1Q b - - 0 1 legal: proof: d4 a5 f4 e5 b4 exf4 c4 d5 cxd5 axb4 Bd2 c6 Bc1 c5 Nf3 cxd4 Bd2 g5 Ng1 f3 Bf4 gxf4 Kd2 f2 Nf3 h5 Ng1 h4 Qc1 h3 Qc2 Ke7 Qd1 Ke8 g3 Qd7 Qb3 Qd6 Qd1 Qd8 a4 Nc6 Nf3 Rh4 Bg2 Bd7 Qb3 Nb8 Nc3 Bg7 Rag1 Qc7 Qd1 Rh7 Bf1 Qd8 Nb1 Bf8 Rg2 Rh8 Ng1 Bc8 Qc2 hxg2 Qc1 Qc7 Qd1 Qd8 Kd3 Ke7 Kc4 Kf6 e4 b5+ Kd3 b3 h4 f3 d6 b2 a5 Nd7 h5 Ne7 a6 Nc5+ Kc2 d3+ Kc3 d2 Kb4 Kg5 e5 f5 d7 f4 h6 Rg8 e6 Nd3+ Ka3 Nc1 Kb4 Rg6 Qe2 d1B Na3 b1R+ Kc5 Nd5+ e7 Rb4 Qe6 Nc3 Qe2 Nb1 Nc4 Bb7 Qa2 Be4 Bd3 f1R Ne3 f2 Bc2 f3 Ne2 g1B Nf4 Bg7 e8B Qf6 Bf7 Rg8 Qe6 Bf8+ Qd6 Be7 d8N Re1 Kb6 f1B Qe6 f2 Rh3 R6g7 Bh5 Qa1 Nc6 Rd8 Rh2 Bh7 Nfd5 Rg6 Bf3 Bfe2 Qh3 f1R Rf2 Bc4 Bfe4 Bh5 Rf8 Rf3 Ba4 Bf2 Bec2 Rf1 Rh8 Rdg8 Qh1 Be1 Nd1 Kg4 Bcb3 Bh4 Kc5 Qf6 Nd8 Kg5 Ne6+
1k6/3RBqP1/1q3B2/Q2P4/3b4/rP3K2/1Brqn1pq/rRqnqbN1 b - - 0 1 legal: proof: e4 d5 c4 dxc4 f4 b5 a4 e6 f5 exf5 axb5 fxe4 Kf2 e3+ Ke2 Bd6 Ke1 Bf8 g4 g6 Bd3 Ba6 Nc3 Bc8 Bf5 gxf5 Ne4 h6 g5 h5 Nf2 Na6 Ng4 hxg4 Ra5 Nb8 Ra2 Rh3 Ra1 Rh8 Ke2 Kd7 d4 c5 h4 Kc7 b3 a5 g6 a4 d5 g3 h5 f4 h6 f5 h7 a3 Nh3 a2 Qf1 c3 Qf3 g2 Nf2 c4 Ng4 c2 Nf6 c3 Rf1 Ra3 Re1 Ba6 Ng4 Nf6 Nh6 Ne4 Nf7 Bc5 Qg3 Nc6 Qh4 f3+ Kd3 f4 Qg3 e2 Ng5 f2 Qh4 f1Q Qf2 f3 Bd2 c1Q Rd1 e1Q+ Qe2 f2 Nf3 c2 Bg5 Qh1 Ng1 f1Q Be7 Qf7 Qd2 Kb8 Qa5 Nc3 Bf6 Qb2 Rdb1 c1Q Be7 Re8 h8B Qb6 Bhf6 Nd1 g7 Be3 Ke4 Bd4+ Kf3 Qbd2 Bc5 Rc8 Be7 Qa7 b6 Qh2 b7 Qb6 Qc5 Bf1 Qa5 Kc7 b8B+ Kb7 Bbd6 Rc7 Rb2 Kb8 Rab1 a1R Ra2 Bc5 Be5 Nd4+ Kg4 Ne2 Kf3 Bd4 Rc2 Be3 Bb2 Bd4 Rc6 Rc8 Rd6 Rc2 Rd7
5rq1/1b1k1pbp/1PRR2nN/1nn1B3/3N3p/Qp1P2Pq/R2K2p1/7b b - - 0 1 legal: proof: f4 e5 h4 exf4 c3 c5 g3 d6 Bg2 Bh3 Be4 Bf1 Bd3 Bh3 Qb3 Bg2 Nf3 d5 Qc4 dxc4 Rg1 Qe7 Rf1 Qd8 b4 g5 b5 Bh1 Ng1 f3 b6 axb6 Bf5 b5 Bh3 b4 Bg2 fxg2 Nf3 gxh4 Ng5 b5 Nh3 b3 Ng1 b2 Kf2 b4 Ke1 b3 Rf5 Ra4 Rf1 Rb4 cxb4 Qd5 Rf4 Qg5 Rf1 Qd8 e4 c3 a4 c2 e5 c4 b5 c3 e6 Nh6 e7 Qd4 a5 Qd3 a6 Bg7 b6 Qf5 a7 Rf8 a8Q Ng4 Na3 b1B Bb2 c1N Nc2 Kd7 e8R Na2 Rc8 Na6 Nd4 c2 Ngf3 Ne5 Nh2 Nc3 Ra2 Nc5 Qa3 Ng6 Rc6 Qh3 Rff6 Nb5 Ng4 c1Q+ Ke2 Bc2 Nh6 Be4 d3 Qg5 Bc3 Qgg4+ Kd2 Bd5 Nf3 Be4 Be5 Bd5 Nd4 Be4 Rc8 Bb7 Rcc6 Bh8 Ke3 Ne7 Qc1 Qg8 Kd2 Bg7 Qa3 Ng6 Rfd6+
1Rrqk1b1/P3P1R1/1nBn4/2Q1P2K/4B1n1/1Nb3B1/nr3b2/nb1n1b1n b - - 0 1 illegal: Other
K2bbb2/1R1B1n1n/3n1r2/1Pk2rb1/1Bq1P1R1/1b2n1qQ/2P2Nb1/n5R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bh3 g3 Bf1 g2 Nc3 cxd6 Ne4 d5 Ng3 fxg3 Bh6 d4 Bg5 Bc5 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kf4 a5 e4 g5+ Kf3 f4 b4 d3 h4 d2 h5 a3 h6 a2 h7 a4 b5 g4+ Ke2 a3 Kd3 f3 Kd4 f2 Kc4 Ra6 Ne2 g1N Rh2 g2 Rh3 g3 Rh5 Nc6 Nc3 Nh6 Qf3 d1B Be2 f1B Qf2 Qc7 Qf3 Ne7+ Kb4 Nef5 Bd2 Nh3 Rb1 g1Q Qh1 a1B Rb3 g2 Rb2 a2 Na4 Ng5 Rb3 Bf6 Bg4 a1N Nb2 Bd8 Qh4 Qf2 Ra3 g1B Rh3 Qg3 Na4 Bg2 Be1 Be3 Rh1 Bb7 Qh3 Bd5 Qh4 Bb3 Qh3 Qc4+ Ka3 Rc6 Nc3 Kc5 Rh4 d5 Rg1 d4 Bd2 Rf6 Be1 Be2 Nd1 Nd6 Nf2 Bef3 Bf5 Bh5 Rg4 Be8 Bc3 Rg8 h8R Rg7 Rg8 Nh7 Ba5 Re7 R8g7 Re5 Rb7 Bg5 Bd7 Nhf7 Bc3 d3 Ba5 d2 Bc3 d1N Bd2 Kd4 Bb4 Ba2+ Ka4 Ref5 Qh6 Bde7 Ka5 Ne3 Kb6 Bd8+ Ka7 Bb3 Qh5 Qc3 Ka8 Qc4 Ba5 Kc5 Qh3 Ne5 Bd2 Nef7 Bb4+
N1Rq1b2/Knq1Qr2/5kb1/b5Rb/PBr2b2/P2P3r/3bnB2/1q2Br2 b - - 0 1 illegal: Other
rn1bN3/4b3/q2PbR2/4q1bP/1q1k1n2/1PNQnK2/q3R1n1/1nr1NB2 b - - 0 1 legal: proof: c4 e5 a4 b5 f4 bxa4 g4 exf4 g5 d5 b3 dxc4 Bb2 h6 Bd4 hxg5 Bf2 g4 Bg3 fxg3 e4 Kd7 Ke2 Kc6 d4 f5 h4 g5 d5+ Kc5 d6 a5 h5 g2 e5 c3 e6 a3 e7 f4 e8N a4 Qd3 f3+ Kf2 g3+ Ke3 f2 Be2 f1Q Bg4 c2 Qh7 c1B+ Nd2 a2 Ke4 a3 Nb1 Nf6+ Ke5 Nd5 Ke4 Be7 Qf5 Qa6 Nf6 Be6 Bh3 g4 Rh2 Bg5 Qf3 Ne3 Ne2 g1N Qf1 g2 Qf2 g3 Qe1 Nf3 Nc1 g1N Re2 g2 Nd5 Nh4 Qd2 Ngf3 Qe1 g1B Nbc3 Nd2+ Ke5 Nhg2 Rf2 Nb1 Ke4 c6 Rc2 Qdb6 Qe2 Qb4+ Kf3 Kd4 Nd1 c5 Qf2 c4 Ke2 c3+ Kf3 Rc8 Re2 c2 Nd3 c1N N3f4 Nd3 Qf1 Rc1 Nc7 Bf2 Ne8 Bfh4 Nc3 Bd8 Ng6 Ndf4 Ne5 Bge7 Nd3 Bhg5 Nd5 Nc3 Rb1 a1Q Ne1 a2 Rbb2 Nb1 Nc3 Ba5 Rf2 Bad8 Rbc2 Qb2 Qb5 a1Q Rce2 Q1a5 Qf5 Qe5 Qd3+ Kc5 Kg3 Qba2 Rf3 Nh4 Bf1 Nhg2 Kf2 Ng6 Rf6 N6f4 Qf5 Kd4 Kf3 Bh6 Qh7 Bg5 Qd3+
q1qn4/1b2b1Rr/2Pr1N1q/8/R4P1p/r1Nr1BNn/1K3kqP/1Q1q1n2 b - - 0 1 legal: proof: g4 c5 a4 a5 d4 cxd4 b4 axb4 e3 dxe3 Ke2 f5 Ke1 fxg4 Ba3 bxa3 c4 Kf7 f4 Kg6 a5 Kf5 a6 Ke4 c5 h5 a7 d5 Ke2 g5 Qa4+ d4 Kd1 b5 Kc2 e5 Qa6 a2 Qa3 e2 Kb2 e1R Nc3+ Ke3 Bd3 e4 Nh3 h4 Kb3 b4 Rc1 a1Q Qa2 g3 Qc2 g4 Qb1 g2 Rc2 g1N Qa2 g3 Rf2 g2 Qa6 Nh6 Qf6 Nc6 Ne2 Be7 Qe6 Nf5 Qf6 Rd1 Qe5 Bb7 Bb5 d3 Ng5 d2 Kc2 Qc8 Nf7 Ng3 Qd6 Nf1 Nd4 Rh7 Qe6 Nd8 c6 Nh3 Qg6 g1Q Ne2 Qg2 Ng5 Qf6 Nc3 b3+ Kb2 Qf8 Nf7 Qh6 Re2+ Kf3 Rg1 e3 Re1 e2 Nd6 Kf2 Qb1 Qgg6 Nf5 Qg2 Ka1 b2+ Ka2 Rc1 Ng3 d1Q Bc4 Rc2 Bd5 Rd2 Bf3 Rd6 Ka3 Qc1 Rd1 e1Q Rd4 Qcd1 Ra4 Qee2 Ka2 Qa6 Ka3 Rb8 a8N Qa5 Qa1 b1R Nb6 Ra8 Nd7 Rb3+ Ka2 Qa7 Qb1 Ra3+ Kb2 Qa6 Na2 Rad3 Nf6 Qa7 Nc3 Qab8 Re4 Ra3 Ra4 Qa8 Nge2 Qh1 Rg7 Qg2 Ng3
3q2Q1/3rN1P1/n1r2bq1/PRp1rB1n/k2P2b1/B1r2r2/nB3N2/1K1n2b1 b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 a4 gxf4 g4 e5 c4 d5 g5 dxc4 Ra3 h5 Qg4 hxg4 Rd3 Qd5 Na3 Qd8 Rd6 f3 Rf6 Qe7 Rf5 Qd8 Rf4 exf4 Kd1 Kd7 Kc2 Kc6 d4 b5 h4 f5 e5 b3+ Kb1 b4 e6 g3 h5 f2 e7 b2 g6 c3 h6 c2+ Ka2 b1N h7 b3+ Kb2 g2 a5 f3 Rh6 f4 Ne2 g1B Ng3 Nc3 Nb1 Bg7 Bg2 Kb5 Nh5 f1R Bh3 c5 Bf5 f2 Nf6 f3 Rh4 Nd1+ Ka1 b2+ Ka2 Ka4 Na3 Ra7 e8Q+ Rd7 Bh6 c1N+ Kb1 Na2 Ng4 Re1 Rh1 f1R Nf2 Re5 Bc1 Nf6 Nb5 Na6 Na7 Nh5 Qg8 Bf6 Nc6 Rfe1 Ne7 R1e3 Qd5 Rf8 h8B Rc3 Bg7 Rh8 Qg8 Rh6 Nh3 f2 Bf8 f1Q Nf2 Qg2 g7 Qg6 Rh3 Rc2 Rb3 Rc3 Rb5 Rf3 Kc2 b1R Ba3 Rbb3 Bb2 Qge8 Kb1 Rg6 Nc6 Rh6 Bd6 Qg6 Ne7 Rbc3 Ba3 Re6 Bf4 Rc6 Qe6 Rh8 Bfc1 Re8 Nd5 Ree7 Qg8 Re5 Ne7 Rdd6 Bd3 Bg4 Bcb2 Rd7 Bf5
q7/qPQbP3/1RR4K/2b1nBp1/1rB2B1n/1rkN4/1br2P2/1rbq1r2 b - - 0 1 legal: proof: g4 f5 a4 h5 e4 hxg4 d4 c5 d5 b5 d6 bxa4 Nd2 c4 Qf3 exd6 e5 d5 Qc3 d4 Qd3 cxd3 Ne4 fxe4 Kd2 Ke7 b4 Ke6 h4 Kd5 c3 Kc4 h5 g5 h6 a5 e6 d5 b5 g3 b6 a3 h7 a4 b7 e3+ Ke1 a2 Nf3 a3 Rh5 g2 Rh2 g1R Rh1 e2 Kd2 e1B+ Kd1 Nc6 Rb1 a1B Rh3 a2 Rh1 Bd2 Rh4 Ra3 Bb2 Nh6 Rc1 Rb3 Rc2 Bd7 Nh2 Nf5 Rg4 Qa8 Bc1 Bb2 Nf3 a1Q Ne1 Bc5 e7 Rc8 h8Q Q1a7 Qe5 Nh4 Qc7 Ne5 Rf4 Rg3 Rf6 Rb4 Rb6 Kb3 c4 Bf4 Rd6 d2 Ke2 d1R Nd3 Rh3 Bd2 Rb1 Rb6 Rf3 Bc3 Bfc1 Bd2 Rh3 Bf4 Rf3 Rd2 Kc3 Rd1 Bd6 c5 Rh3 c6 Bc5 Rd2 Kc4 Ne1 Rhb3 Nd3 Kc3 Qb8 Rg8 c7 Rg6 c8B Rd6 Qc7 Rc6 Ne1 d3+ Kd1 Bh3 Bf5 d4 Re2 d2 Nd3 Rb5 Re4 R5b4 Ke2 d1R Re3 Nef3 Re6 Ne5 Bg2 Rf1 Bd5 Rd6 Bc4 Rd8 Ne1 Rc8 Rec6 d3+ Kd1 d2 Ke2 Bd6 Nd3 Bg4+ Ke3 d1Q+ Ke4 Bh3 Kd5 Bg4 Ke6 Bc5 Kf6 Bh3 Kg7 Bg4 Bg6 Bd7 Kh6 Rd8 Ra6 Be6 Ne1 Rd2 Nd3 Rc2 Bf5 Bd7 Rab6
3r1B2/4r1Pb/6q1/qBq3Q1/1qBPnkr1/1R2bNnp/1R1P1r2/b2K2n1 b - - 0 1 illegal: Other
2n1Q3/Nr4bP/1B3r2/PKR2qP1/2n3pb/3B4/2bkn1r1/rb2BqnN b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 g4 c5 d4 cxd4 a4 f5 Qd2 fxe4 f5 h6 Qf4 gxf4 g5 h5 Ra3 Na6 Rg3 Nb8 Rg4 hxg4 Ke2 Kf7 h4 e5 c4 b5 c5 d5 a5 e3 Kd3 b3 f6 Ke6 h5 Kf5 f7 f3 h6 Kf4 c6 b2 c7 e4+ Kc2 d3+ Kc3 d2 Rh4 d1R Kb3 d4 Bd3 b4 Ka4 b3 Ba6 d3 Kb5 f2 Rh1 f1Q Nf3 d2+ Ka4 e2 Bb5 Ke3 Rh4 e1N Ba6 Qf6 Be2 Bg7 f8B Qf5 Bb5 Ne7 Bd7 Nbc6 Nc3 b1R Rh3 b2 Nd4+ Nf3 Na2 Ne5 Bc6 Ra6 Nb5 Nc4 Bd7 Rf6 Rh1 Ng1 Nac3 Ba6 Bc6 Nc8 Bb4 Rh7 Ne2 Ra1+ Ba3 b1N Na7 Nc3+ Kb4 Bb7 Ng3 Nce2 Bb5 Re1 Bcb2 d1B Bd4+ Kd2 Bb6 e3 Rh3 Ba6 Nh1 Bc2 Bb2 Bb7 B2d4 Bbe4 Bc3+ Kc1 Rg3 Bb1 Rf3 Bec2 Rf4 Rd1 Be1 Rd2 Ba6 Nc3 Rd4 Rg2 Rd5 Nce2 Rc5 Kd1 Kb5 Kc1 Bf2 Kd2 Bh4 Nf4 Bg3 e2 Bf2 e1B Bh4 Ne7 c8Q Nfe2 Qe8 Nc8 Bf2 Bf8 Bh4 Rb7 h7 Bg7 Kb4 Nb2 Bd3 Nc4 Kb5 Bf2 Bg3 Be1 Bd6 Bh4 Bg3 Qd5 Bf2 Qf5 Be1+
8/nq1qP1b1/5P1k/2n1pnRN/b3PR2/3qQ2R/nrr1N1BK/2q1r1r1 b - - 0 1 illegal: Other
1Bb2q2/1kn1P1Pq/r4BPr/b1K2n1N/2p2p2/1R3QRb/nb2Rr1b/8 b - - 0 1 illegal: Other
q6Q/NpKpN3/2n4N/3r2nP/q4PP1/3r1q2/1qn1R3/1BBbrqbk b - - 0 1 illegal: Other
6r1/P2Kn3/P1rpn2k/B1rRr3/1PB2Qq1/5b1B/p3Nqrr/b3N1r1 b - - 0 1 illegal: Other
b3nb1q/2RrB1p1/n1Br1nPk/b5b1/Ppq3b1/N5P1/5B2/2N1Q1nK b - - 0 1 illegal: Other
r2k1K2/2p1nb2/3nP3/1PR2q2/r1qnb3/1N1BN1b1/nP1Qp1R1/bbR5 b - - 0 1 illegal: Other
2n1K1bb/6N1/6nR/3qPb1P/p1Pr1n1Q/rn1R1kp1/4r1r1/NBq4R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 bxa4 d5 e5 d6 exf4 Bd2 cxd6 Be3 d5 Bf2 d4 Bg3 fxg3 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 Kf4 e4 a5 b4 g5 h4 f5 c3 a3 h5 a2 b5 g2 b6 d3 b7 g3 Ne2+ Kf3 Rh4 g1N Na3 d2 Nc2 g4 Rb1 a1N Rh1 g2 Ng3+ Ne2 Rb3 g1R Bh3 f4 Qb1 d1Q+ Ke5 d5 Qb2 d4 Bf1 d3 Nb4 d2 Bh3 Nd7+ Ke6 Bg7 Kf7 Rg2 b8R Qc1 Qc2 d1R Nd5 Ne7 Re1 Re8 Rg1 Nb6 Qb2 Bh8 Re1 Bf5 Ne3 Ng6 Nc2 Rd4 Rh1 Nc8 R8b6 Qd5+ Re6 Ra6 Ra3 Ra8 Qb4 Nb3 Na1 Ra6 Nf1 g3 Ne3 a4 Qe7 Rb6 Qh4 Rbb4 Nd1 Rd3 Ne3 Rbd4 Bg4+ Kf2 Bh3 f3 c4 Nef4 Bg4 Ke2 Bh3 f2 Bg4+ Kd2 Bd1 f1B Bc2 Ke2 Bb1 Kf3 e5 Rd8 Ra2 Re2 Rc2 B1h3 Rc3 Rdd2 Rd3 Rg2 Rg1 Rde2 Rh1 Rd7+ Ke8 Rf7 Rf6 Be6 Rh2 Bhf5 Rh3 Rb7 Rh1 Bg8 Rb6 Nd2 Rd6 Rb3 Rf6 Ra3 Ra6 Bfe6 Rb6 Nb3 Nf5+ Qe3 Ng7 Bf5 Rdd1 Qc1 Ra6 Nge7 Rh6 Neg6 Rd3+
1R1RN2R/rb1b2rq/4Q3/P1kP1p2/2r1q2n/q1bp1N2/1qBP1K1n/5b2 b - - 0 1 illegal: Other
RN3b2/7b/2P1Bbnn/1B4rn/1RbPK3/4B2p/Pk2rQ1p/1rq2rq1 b - - 0 1 legal: proof: f4 d5 h4 e5 e4 exf4 b4 dxe4 h5 a5 b5 a4 b6 cxb6 h6 b5 Nc3 b4 Nb5 gxh6 Nd4 h5 Nb3 axb3 Bb2 h4 Ba3 Nc6 Bc1 Nb8 Ke2 Ke7 g4 Kf6 c4 Ke5 g5 Kd4 d3 Kc3 g6 b5 c5 h5 d4 f5 c6 f3+ Ke3 f4+ Kf2 h3 g7 b2 Bc4 b1B Bd2+ Kb2 Be6 h2 Bf5 h4 Be6 h3 Bg4 b3 Qe1 b4 Qd1 e3+ Kf1 e2+ Kf2 e1B+ Kf1 f2 Ke2 f1N Kf3 Ba6 Ne2 Rh5 Be3 Qg5 Bg1 Bc4 Nc1 Bh7 Bc8 Nh6 g8B Bh4 Bg4 Ng3 Bd5 Nd7 Bge6 Re8 Qe1 Qg7 Be4 Rg5 Bd3 Nh5 Be3 Qg8 Rf1 Ne5+ Ke2 Ng6 Kf3 Re7 Ke4 f3 Be2 f2 Nd3+ Kc2 Rd1 b2 Nc5 b1Q Rd3 b3 Nd7 b2 Ra3 Qc1 Nb8 b1R Ra4 Kb2 Rg1 f1R Qf2 Ra5 Rg4 Bf6 Rf4 Rg5 Rf5 Rb7 Rfa5 Rb3 Ra7 Rc3 R7a5 Rc2 Bd3 Re2 Ra8 Bb3 Ba6 Bc4 Bb5 Qg7 R8a5 Qc7 Ra7 Qg3 Ra8 Qg1 Rb4+
5R1K/1Np2b2/7P/1n3kqr/QPpnbR1q/PN1Nq3/1br1B1q1/b2r4 b - - 0 1 legal: proof: g4 e5 f4 exf4 c4 b5 b3 a5 g5 d5 g6 a4 d3 a3 Qc2 d4 Nf3 bxc4 Qb2 axb2 Bd2 hxg6 Ng1 g5 Bb4 g4 Bc3 dxc3 Kf2 Kd7 e4 Ke6 h4 g5 e5 f5 b4 g3+ Kf3 g2 d4 g4+ Ke2 c2 h5 c1B Nh3 g1Q Rh2 f3+ Ke1 f2+ Ke2 f4 d5+ Kf5 d6 g3 Kf3 g2 e6 Ne7 d7 Nbc6 Nd2 b1B Rh1 Nd5 e7 Bg7 e8Q Bcb2 Ng5 Nc3 Ne6 Qh4 d8N Nb5 Nc5 Be6 Ndb7 Bf7 Be2 Bgf6 Nd3 f1R+ Nf2 Rd8 a3 Rc1 Nd3 Rc2 Nb3 Qa7 Rh3 g1Q Rg3 Bfe5 Rg8 Qgg5 Rf8 Qag1 Ra2 Rd6 Qa8 Ba1 Qa4 Beb2 Nf2 Rd1 Nd3 Kf6 Ke4 f3+ Nf4 f2 h6 f1Q Nd4 Rg8 Nb3 Qhf2 Nd3 Ncd4 Qa7 Kg6 Qa4 Qgh4+ Ke5 Qf1g2 Rb8 Qff3 Rc8 Kg5 Rf8 Kg4 Nf4 Rg5+ Kf6 Re5+ Kg7 Kf5+ Kh8 Qfe3 Nd3 Rc5 Re8 Qeg5 Rf8 Q1e3 N3a5 Rc3 Bg4+ Ke4 Bd7 Qd5 Rd8 Qgg1 Ne1 Bc1 Rg2 Bcb2 Rf8 Qdh5 Rgg8 Qg2 Bg4 Qg6 Rg7 Rh5 Be2 Kf5 Nb3 Be4 Nd3 Rc2 Rgg8 Q6g4 Rg7 Qgf4 Rg4 Qfg5 Rf4+
1q1r1rb1/1p6/2rq1PQ1/r3PN2/2b1PnKb/4b1B1/p1n2q1N/RBN4k b - - 0 1 illegal: Other
b3B2K/qp1Qn2b/1pn4P/3BN3/krqnq1q1/1P1R1N2/2n3P1/2brB3 b - - 0 1 illegal: Other
Bb1b4/1B6/N1P2pn1/Pbb2kr1/Bbn1p1P1/4Q3/Rq4bN/1rbK2b1 b - - 0 1 illegal: Other
3bq3/k1n2rR1/4RN1N/r3r2b/PnP4K/B1P2pnN/pp1q2b1/2q3Q1 b - - 0 1 illegal: Other
1br2r2/1nr2RR1/qN6/P2p3q/3kB1P1/K2bp1pP/Q4nrN/2rb2R1 b - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 h5 e5 c5 e6 cxd4 Nc3 h4 Nb1 fxe6 Be3 e5 Bf2 e4 Bg3 hxg3 Kd2 Kf7 Kc1 Kf6 Kb2 Ke5 c4 d5 a4 b5 h3 d3 a5 e3 c5 e2 c6 e1R c7 f3 Qc1 b3 Qc5 d2 Bd3 d1B Bc2 b4 Ra3 f2 Rh2 f1Q Ne2 Nc6 Qg1 Nf6 Rf2 Qe8 Bd3 Qh5 Nbc3 Bf5 c8R Nd8 Rb8 Nb7 Qh2 Ne4 Rf3 Nf2 Bc4 Bd3 Ng1 Kd4 Na4 e5 Bb5 e4 Bd7 e3 Qh1 Re2+ Ka1 b2+ Ka2 Bd6 Qg2 Rf8 Nb6 Bc7 Rd8 Rc8 Bf5 Bb8 Be4 Rd2 Rc3 b3+ Ka3 b1R Rf7 b2 Rdd7 Rc1 Rg7 b1R Rdf7 Rdc2 Rb3 Rbb2 Nf3+ Kc5 Nh2 Kd4 Rb5 R2c7 Rb3 Bb1 Rc3 Qa6 Rc6 Bd3 Rcf6 Nh1 Rf1 Rf2 Rg1 Re2 Qf3 Rg2 Qe2 Nf2 Qa2
1R3qrq/bKNNpP2/1QB5/P1b2nqp/R7/p1N1knP1/4r3/1nbb4 b - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 fxe4 Ba3 bxa3 h6 gxh6 Ra2 h5 Ra1 h4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 Kd5 d4 b5 f4 b4 f5 b3 g3 c3 a5 h3 f6 b2 f7 c4 Qd3 h2 Ra2 c2 Qb3 c1B+ Nd2 b1N Rb2 Bh6+ Ke2 e3 Kf3 e2 Rc2 e1B Qe3 c3 Bg2 Bf2 Nb3 Qf8 Qd2 Nd7 Ne2 Bhe3 Rb2 c2 Qb4 Nh6 Nc5 Nf5 Qb6 h6 Rd1 h1Q Nc3+ Kc4 Ke4 Ne5 d5 Nf3 Nd7 Bc5 d6 Ra6 Rf1 Rg8 Rd1 Qh5 Re1 Qg5 Rh1 h5 Rh4 Bfe3 Qb8 Ba7 Qb6 Bc5 Rg4 N3d4 Ke5 Kd3 Kd5 Nf3 Kc6 Ke3 Ra4 Qgh6 Kc7 Qh8 Rbb4 Bb7 Rb5 Bc6 Rbb4 Bb5 Kb7 Be2 Rb3 Bd1 Rb5 Ne1 Bc6 Nf3 Nb8 Bb2 d7 c1Q d8N Qd2 Ne6 Bc1 Rb3 Qd5 Nc7 Qde5 Qb5 Qeg7 Nd7 Qg5 Bd5 Rd6 Bc6 Rd2 Qb6 Re2 Qb5 Ng7 Ka6 Bd4 Qc5 Nf5 Rb8 Qe5 Qb5 Qh8 Qb6 Bc5 Kb7
3nb1rN/2NpBnnQ/q1pb4/1Nr1qB2/1kPP1R2/1p2P3/1r3b2/2K4b b - - 0 1 legal: proof: h4 a5 b4 axb4 f4 e5 h5 exf4 h6 gxh6 a3 h5 Rh3 h4 Rh2 Ra5 Rh1 Ra8 d4 bxa3 e3 f3 Ra2 Ra5 Ne2 Ra6 Ng1 Ra8 Rb2 Nh6 Rb3 Ng8 Rc3 Bh6 Rd3 Bf8 Rd2 Ra4 Re2 fxe2 Kd2 Ra8 g4 Ke7 g5 Kd6 c3 e1B+ Kc2 b5 g6 h5 g7 f5 Be2 h3 Bg4 h4 Bf3 h2 Qe2 a2 Ba3+ b4 Qd2 a1R Kb2 h3 Qd3 f4 Nd2 Bb7 Qb5 Rb1+ Kc2 Bf2 Bd1 f3 Qe5+ Kc6 Bb2 b3+ Kd3 Rh5 Ne4 Qe8 Kd2 Nh6 g8N Bd6 Nc5 Kb5 Qd5 Nc6 Nf6 Nd8 Qf7 Qe5 Ne2 Be4 Na4 c6 Nf4 Bg6 Qg7 Nhf7 Rf1 h1N N6d5 h2 Ba3 Ng3 Bc2 h1B Qh7 Rb2 Kc1 Nf5 Nc7+ Kc4 Bb4 Ng7 Bf5 Rg5 Bc5 Ra5 Bb4 Rc5 Ba3 Bh5 Ng6 Bg3 Qg8 f2 Be4 Be7 Nf4 Rd5 Bc2 Ne8 Qh8 Nfd6 Ng2 Rg8 Nf4 Ng7 Qh7 Be8 Ng6 N6f7 Nh8 Ra5 Bd6 Rc5 Bf5 Bf8 Be7 Bh4 Bg5 Bd6 Be7 Bg3 Re1 f1Q Rd1 Qe2 Rf1 Rd2 Rf4 Bf2 Na8 Kb5 c4+ Kb4 Nc3 Ra2 Nc7 Qb2+ Kd1 Qa3 N3b5 Rb2 Kc1 Qa4 Be4 Qa6 Bf5
1n5R/P1B1q2N/1q6/k1p5/1PP1pqpq/1BRr4/1n1n1br1/K1Q1bB1b b - - 0 1 illegal: No possible last move
rb6/2RP1B1K/Rp1nn3/pn4qQ/1k1B3n/1p1Pn3/1rP2nbR/1r4N1 b - - 0 1 illegal: Other
3N1N1q/b1p1Br1P/3P1r2/rkb1b2K/p1bnr3/N4BR1/P1Q3p1/n2b4 b - - 0 1 legal: proof: c4 h5 e4 b5 g4 hxg4 b4 bxc4 f4 g3 e5 g2 Na3 d6 Rb1 dxe5 Rb3 exf4 Rg3 fxg3 Ke2 Kd7 Kf3 Kc6 d4 e5 h4 f5 h5 a5 h6 g5 h7 f4 Qd2 g4+ Ke4 c3 Qe1 a4 Nb5 f3 Bh6 c2 Nh3 g1B Bg7 c1R Qe3 g2 Qe2 f2 Qe1 g3 Kf3 e4+ Kf4 e3 Rh2 e2 Qd2 e1R Bh6 Na6 Bg7 Bd6+ Kf3 Be5 Bf8 Re4 Be7 Nc5 Ng5 Nh6 Nc3 Rf8+ Nf7 Ra5 Qc2 Nb3 Be2 f1B Rh3 Nf5 d5+ Kb6 b5 Na1 d6 Bc5 Nb1 g1B Bd1 g2 Rg3 Bc4 Be2 Qe8 Nd8 Rf6 Bd1 Qh8 Be2 Re3+ Kg4 Nd4+ Kh5 Re4 Bg4 Rcf1 Bf3 Ka7 b6+ Ka6 b7 Kb5 b8N Bg4+ Kg5 Ba7 Nd7 Rf7 Nf8 Bh5 Bg4 R1f6 Kh4 Nc6 Kg5 Bgc5 Bf3 Bg4 Kh4 Nd4 Kg5 Be2 Kh4 Be6+ Kg5 Bd1 Kh5 Bc4 Na3+
8/1bqk2Np/rP4bB/nR1n1r2/Pp4r1/N1brnP1N/2B1bpQ1/7K b - - 0 1 illegal: No proof kernel
1r3B2/p4b1K/qPkbn1PR/n1nNQN1R/3N2r1/q7/p1p2Pb1/2bn4 b - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 h4 gxh4 e4 f5 a5 fxe4 a6 bxa6 Bd3 a5 Bc2 a4 Bb3 cxb3 Ke2 Kd7 Ke3 h5 Kf4 c5 Kg5 e5+ Kg6 b2 d4 a3 g4 h3 d5 a2 d6 h2 g5 c4 b5 h4 b6 e3 Ne2 e4 Nd2 b1N Nf3 h3 Qd3 c3 Bb2 c2 Rf1 h1Q Rd1 h2 Qc3 Nf6 Nc1 e2 Rd3 e1N Ng1 e3 Nce2 Nd5 Nc1 e2 Rd4 Nc6 Rh4 Nc7 Rd4 Ne6 Rd3 Rb8 Qc4 Qe7 Rh3 Na5 Rh6 Rg8+ Bg7 Nd3 Nh3 e1B Qc5 Bd2 Kh7 Qf1 Ne2 h1B Ng3 Bg2 Nf4 Bc1 Nf5 Nc3 Qe5 Ndc5 Nd5 Kc6 d7 Qa6 Rh5 Nd1 d8N+ Kb5 Rh6 Bd7 Rh5 Be8 Nc6 Bf7 Bh6 Qd6 Bg7 Be7 Bf8 Rg6 Qe3 Qg3 Qe5 Bd6 Rh6 Qa3 Ncd4+ Kc4 Rb1 Rg8 Rb3 Rg6 Rbh3 Rg8 Nf3 Kb5 Rh1 Rg6 R1h5 Kc6 Ng3 Rf6 g6 Rf4 Nf5 Rg4 N3d4+
1k2n2r/b2n1pB1/p1KP3p/6Q1/BR1pp1P1/NP1r1bq1/1Nb1br2/7N b - - 0 1 legal: proof: d4 c5 a4 b5 e4 bxa4 h4 d5 h5 dxe4 f3 exf3 d5 g6 Ra3 gxh5 Rd3 h4 Rd4 cxd4 Kd2 Kd7 Kd3 Kc7 Ke4 e5 g4 a3 c4 h6 b3 f2 c5 h3 c6 a2 Bd3 f1B Bb5 a1R Bg5 h2 Nh3 Nd7 Na3 Be2 Bf6 Bc5 d6+ Kb8 Qd2 Rd1 Qg5 Rd3 Kd5 a6 Rf1 Ba7 Ba4 h1B+ Rf3 Bb7 Nf2 Qc7 Bg7 Ngf6+ Kc4 Ne8 Kd5 Bg2 Nh1 Bgf1 Rf4 Bd1 Rf2 Bfe2 Rf1 Bc2 Ra1 Qd8 Ra2 Qf6 Ra1 Qf4 Rc1 Bb1 Rc4 Qg3 Rb4 Bc2 Bf6 Rg8 Bh8 Rg6 Bg7 Nb6+ Kc5 Rf6 c7+ Kc8 Qf4 Bbf3 Qg5 e4 Kc6 Rf4 Kc5 Kb7 c8N Kb8 Kc6 Rf5 Bb5 Nd7 Nb6 Bg2 Na4 Rf2 Nb2 Bgf3 Kd5 Kb7 Qe7 Rd8 Qg5 Kb8 Kc6 Nef6 Nd1 Rh8 Nb2 Ne8 Ba4+
2N3q1/P7/R1p2n1p/B2k1BPN/1p3Qbq/1Kn1P2r/Bpp2b1p/3rr3 b - - 0 1 illegal: No proof kernel
1r1q2Q1/3R2BN/1Qr1n2P/1rN2b2/R1r1pp2/K1Pq2k1/3p1P1q/6br b - - 0 1 illegal: Other
1r1br2r/2p1P1rR/Qb1q1rPK/2B4b/1nB1r1Q1/2n5/Rk2NP1q/1r6 b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 axb4 c5 e5 c6 exd4 e5 dxc6 Nd2 c5 Ne4 fxe4 Kd2 c4 Ke2 Be6 Ke1 Bc8 Kd2 Ke7 g4 Ke6 a4 Kd5 e6 h5 a5 b5 g5 c3+ Ke2 Kc4 a6 b3 a7 e3 Kf3+ d3 Kf4 e2 g6 e1R Qe2 b4 Nf3 c2 Qd1 Kc3 Rb1 h3 Ra1 h2 Kf5 d2 Ra6 b2 Kf4 b1R Ra3+ b3 Bg2 h4 Ra1 h3 Ra5 b2 Rh5 Nf6 Kg5 Bc5 Bf1 Re4 Ng1 Nc6 Rh4 Qd6 Bc4 Nd5 Bb5 Ncb4 Be2 Bb6 Qf1 d1R Bf4 c1B Nf3 Rdd4 Rg1 h1Q Rgg4 h2 Qh3 Rg8 Bb5 Rg7 Rg1 Ba6 Bd7 Be2 Be3 Re8 a8Q Kb3 Kh6 Nc3 Re1 Rd5 Qb7 Rf5 Qg4 Rf6 Qa6 Qg2 Rd1 h1R Bb5 Qgh2 Ng1 Bf3 Ne2 Kc2 Qg5 Bh5 Bc5 Bf4 Rf1 Bg3 Rh3 Bh4 Qg4 Rd1 Qf4 Bg4 Bd7 Rb8 Nc1 Rd5 Ne2 Qg2 Bb5 Rff7 Bc4 Bd8 Ra1 Rde5 Ra2 Rf6 Qf5 Rh2 Kg5 Bf3+ Rg3 Rh8 Rg4 Qh2 Rh4 Bg4 Rh7 Bh5 Kh6 Kb1 Ng3 Kc1 Qg4 b1R Ra5 Kb2 Ne2 Rff8 Ra1 Ref5 e7 Re8 Ra5 Rf6 Ra2+
b2n1bq1/1br1NPPb/PRp1b3/1qR3kq/2qqn3/1BQ5/r1Q3K1/1N6 b - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 fxe4 Ba3 bxa3 h6 gxh6 Ra2 h5 Ra1 h4 f4 Kf7 Kf2 Kg6 g4 h5 d4 b5 a5 e5 g5 e3+ Kf3 e4+ Kg2 b4 d5 h3+ Kg3 b3 d6 h4+ Kh2 a2 d7 e2 Qd4 e1Q Qe3 b2 Qc5 e3 Be2 c3 Bg4 e2 Qe3 c2 Qe7 c1Q Qc5 Nc6 Qb4 Qc4 Qc3 Qd1 Nd2 e1Q Be6 b1B Ngf3 Qef1 Qe3 Nf6 Ne1 Rh7 Nd3 Qh5 Nb4 Ne4 Qc3 Qe8 Nd5 Nd8 Rg1 Qf7 Kh1 h2 Qc2 Qfe2 Rc1 Qg8 Qc3 Bc2 Rab1 a1Q Rb6 Qed3 Kg2 h1B+ Kg1 h3 Nb1 Qb2 Bf7+ Kf5 g6 Qbb5 Ne7+ Kg4 f5 Kg5 f6 Qdd4+ Kh2 Bf3 Be6 Bg4 Kh1 h2 Kg2 Bb7 Bd5 Rf7 g7 Bf5 Be6 Bh7 Bd5 Bd1 Qc2 Bg4 Qc3 Be6 Qc2 Nc6 d8Q Ra7 Qd6 Nd8 Qa3 Ba8 Qad3 h1B+ Kf1 Qcc3 Bb3 Qcc4 Qc3 Nd6 Qc2 Bhb7 a6 c6 Kg2 Ne4 Nd5 Rd7 Ne7 Rd5 f7 Rf5 Qcc3 Rf2+ Kg1 Ra2+ Kf1 Ra4 Kg2 Ra2+ Qdc2 Bbc8 Rh1 Rc7 Rf1 Bcb7 Rf5+ Kh4 Rc5 Kg4 Nf5 Kg5 Ne7+
qk3N2/1pQKp1nn/1B1NQP2/n6b/1nr1Bq2/3qPP2/5bb1/1R3rn1 b - - 0 1 illegal: Other
2Qknb1n/8/KPnQ3p/nr1N1P2/1RR1N3/q3p2B/P1n2qbr/1n4r1 b - - 0 1 illegal: No possible last move
Q1B3b1/1N1pP2b/1QP1N1n1/n2KBr2/qbR2r2/1p2k3/r3P1n1/bn3n2 b - - 0 1 illegal: Other
rN3K1B/2r2n2/2rN4/1n1k1pQ1/q4bP1/4pPP1/r1n2rBQ/1rRb2n1 b - - 0 1 illegal: Other
rrbbk1n1/1b2Pn2/1qP5/nN1p2rB/1p3K2/p1P1Q1N1/3BQ2q/3R3q b - - 0 1 illegal: Other
bQ6/qqR5/1n2n2p/n3rP1k/6R1/2PpQrN1/B1qbqpPq/K1N5 b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 b4 cxd4 b5 g5 b6 gxh4 f3 e3 Ke2 axb6 Bd2 b5 Be1 b4 Bf2 exf2 Kd2 b3 Kc1 Kf7 Kb2 Kg6 a4 d5 c3 b5 a5 e5 a6 e4 f4 h3 a7 h2 Na3 e3 Qb1+ d3 f5+ Kh5 Ra2 e2 Qc1 e1N Qd2 d4 Qf4 b4 Kb1 b2 Qc7 d2 Qg3 d3 Qg7 Bb7 Qd4 Qe7 Qg7 Nc6 Nh3 Re8 a8Q Nf3 Qd4 Na5 Qd7 Nf6 Qa6 Nd4 Nb5 Ne6 Qa8 Bh6 Ra4 d1Q+ Ka2 Qe2 Ng1 Nd5 Qc6 Bd2 Qb8 Nb6 Nd4 Ba8 Nb3 Qa7 Nc1 h6 Qe4 Rhg8 Qe3 Rg3 Ra3 Rf3 Ra4 Qe1 Nge2 Re7 Rg1 h1Q Kb1 Qh2 Ng3+ Kg4 Be2 Qd1 Nh1 Kh5 Re1 Re8 Ka2 Qc2 Bd1 b3+ Ka3 b1Q Rg4 b2 Re2 Re7 Re1 Rf4 Bf3 Qd1 Bd5 Rf3 Ba2 Qbc2 Re2 b1Q Re1 Qb5 Re2 Qd5 Re1 Qa4+ Kb2 Qdb7 Ka1 Qe2 Rf4 Qc2 Ng3+ Kg5 Rc4+ Nf4 Rc7 Re5 Qd4 Ne6 Qc5 Qed1 Re4 Qe2 Rf4 Qa4 Qe3 Qc2 Nh1 Kh5 Rfc4 Rc5 Rg4 Re5 Ng3+
2k2NK1/1r4RP/p4p1r/p3q1nB/3rP3/QB5r/1Qnb1Pr1/2q2nNb b - - 0 1 legal: proof: b4 e5 h4 g5 g4 c5 a4 cxb4 d4 exd4 a5 b6 Ra3 bxa5 Rah3 h6 h5 Bc5 Rh4 gxh4 g5 Be7 g6 Bf8 Bg5 hxg5 Kd2 d5 Kd3 Kd7 c4 b3 e3 h3 h6 g4 g7 b2 c5 f6 Be2 a6 Bf3 g3 Qe2 g2 Qd1 h2 Nc3 b1R Ne4 Rb7 Qc2 Qc7 Ng5 Nc6 Qc3 Qe5 Be2 Nb4+ Kd2 d3 Bf3 d4 Qa3 Nc2 N1h3 g1R Bd5 Rg2 Rg1 h1N Bb3 Ng3 c6+ Kc7 Nh7 Nf1+ Kc1 d2+ Kb2 d1R e4 Bb4 Nf8 Bg4 Bf7 d3+ Kb3 d2 Kc4 Rab8 Bh5 Kc8 c7 Bf3 Qb2 Bc3 Qa3 Rb3 Qb2 R8b7 h7 Nh6 g8Q Nf7 Qg3 Rh2 Rg2 Rg8 Ng1 Rg4 Qh3 Ng5 Rg3 Bh1 Rg2 Qg3 Kd5 Qf4 Qe3 Rgh4 Rg4 Rg2 Qc5 Rh3 Qca3 Qf5+ Kd6 Qb5 Ke7 Qe5+ Ne6 R3b4 Kf8 Rd4 Kg8 Rb1 Nf8 d1Q Rg3 Bd2 Rg4 Nf3 Rg7 Qc1 Bg6 Rh6 Bh5 Rb3 Rg6 Ng5 Rg7 Kb7 c8B+ Kb8 Qba1 Rh3 Be6 Rb7 Bb3 Kc8 Q1b2
k2q3b/BN2nQ2/1bp3Rn/pQ2Rrr1/6q1/2r2p1P/1P5P/K2n1bBn b - - 0 1 illegal: Other
4q1Rr/n2NP1Bb/r1rq4/p2R2bq/p2P4/pP2Q1BQ/3bnb2/5K1k b - - 0 1 illegal: No proof kernel
2N2rb1/3PQ3/q2b4/1Np1rqqQ/k1p2R1p/2P3rn/n2P4/Bq2RK1n b - - 0 1 illegal: Other
B2q1Q1K/4b3/r4n2/R2RPb2/n4p1B/P1k1pN2/p1Ppnq2/Qr3r1n b - - 0 1 illegal: No possible last move
1n1QQbr1/2b1Np2/1qB3RP/N1Pbbp1p/k3n2K/6B1/n4pP1/3q2r1 b - - 0 1 illegal: No possible last move
N2b4/q2pp1P1/nQ3q2/2krb2n/p6b/KR3QN1/pnPP2b1/B2r2R1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 cxb4 e4 bxa4 g4 h5 e5 g5 e6 gxf4 g5 fxe6 Bh3 e5 Bf5 e4 Bg4 hxg4 h4 a5 h5 e3 h6 e2 g6 f3 h7 g3 Ra2 b3 Ra3 b2 Rh4 g2 Rd3 a3 Rdd4 a4 Rh3 a2 Re4 Na6 Rhh4 Bg7 Nh3 g1B Rc4 Qb6 Rc5 Qa7 Rd4 Be5 g7 Kf7 Na3 Ke6 Ra5 b1N Re4 Kd6 Nf4 Nc3 Rb4 Bb6 Rb3 Nf6 Bb2 Nh5 Nb5+ Kc5 Ba1 Bb7 Qb1 Rhb8 h8Q Nd1 Qf8 Bd8 Qf7 Bd5 Nc7+ Rb5 Qf5 Rb8 Na8 Nb2 Qh3 Rb6 Qf1 Rg6 Qh3 Rg1+ Qf1 Nf6 Nh5 Bc6 Ng3 Nh5 Kf2 e1B+ Ke3 f2 Qe2 f1Q Qf3 Nb4 Ra6 Bd5 Rg6 Na6 Rg4 Qc4 Rg6 Qh4 Ke2 Qf6 Rg5 Nc4 Kd1 Nb2+ Kc1 Rf1 Ne2 Rh1 Rg1 Bh4 Ng3 Rb4 Qf5 Bg2 Qf4 Rd4 Qf3 Nd1 Qb2 Rd5 Qb1 Nc3 Kb2 Nd1+ Ka3 Nb2 Rc1 Re1 Rd1 Re2 Rg1 Re1 Qbd1 Rf1 Qde2 Rd1 Qb5+ Kd6 Qb7 Kc5 Qb6+
5rbK/BR3Q1b/Pb1pQ3/1p3rN1/qp1B4/3pPr2/1rPnk3/1N2n1b1 b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 gxf4 a4 h5 d5 e5 g5 e4 Bh3 c6 Be6 cxd5 Ra3 d4 Bg4 hxg4 Rf3 exf3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 h4 b5 h5 f2 g6 f1B a5 f3 h6 d3 g7 g3 h7 g2 Bh6 f2 Rh4 Nc6+ Kf4 Kd4 Qc1 Nf6 Kg5+ Ne4+ Kg6 Ne5+ Kh5 Nf3 Kg6 Bc5 g8Q Ne1 Kg7 Bb6 Qe8 Rf8 Rh5 Nd2 Nh3 g1B h8B f4 Rf5 d6 Rf6 f3 Bg5 Be6 Rf4+ Ke3 Qf7 Bg2 Nc3 f1R Qd1 f2 Nb1 Be4 a6 Bh7 Bh4 Rc8 Rg4 Rc5 Ng5 Rf5 Rc4 Rf3 Rc7 Bc4 Rb7 Qc7 Qd7 Bcg8 Qf7 Qc4 Qc1 Qa2 Qb2 Qa4 Qbf6 Ng2 Qf5 Re1 Bg3 f1R Bh2 Kf2 Q5e6 Rf5 e3 Ke2 Be5 R1f3 Bd4 Rc1 Bc5 Ne1 Bd4 Bc7 Ba7 Bb6 Kh6 Rd1 Bd4 Rc1 Kg7 Rd1 Na3 Rb1 Kh8 Rb2 Nb1
krNKb3/b1P2r2/1QrBp2P/2N3n1/1Rn5/1Bp4n/nQP1pqpp/8 b - - 0 1 illegal: Other
Qn1B4/P2q1Q1P/4Pqp1/r5Nn/kb6/1p1B2bp/bpN1KRpb/6r1 b - - 0 1 illegal: No proof kernel
8/1KBr1B2/PB1NNkP1/4q3/1qPn1nn1/b7/1bbbbR2/3Rqnn1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Na3 axb4 Nc4 c5 Qf3 cxd4 Nb6 Ra5 Qa3 bxa3 Na8 Rb5 Bxb5 b6 Bf1 b5 Ke2 Kf7 f4 d5 c4 e5 g4 h5 f5 b4 g5 e3 Kd3 h3 g6+ Kf6 a5 a2 a6 h4 Ne2 h2 Nc7 h3 Bg2 b3 Ba3 b2 Bf1 e4+ Kc2 d3+ Kb3 b1Q+ Ka4 d2 Ka5 d1B Rg1 h1N Nd4 h2 Rg2 e2 Bb4 e1N Kb6 e3 Ne2 d4 Ng1 d3 Rc2 e2 Rc1 d2 Nf3 Qd4+ Ka5 Nd3 Kb5 e1B Bg2 Be2 Ne5 d1Q Bf1 Nhf2 Nc6 h1N Ne7 Nf4 Bg2 Nc6 Rc2 N2h3 Rc3 Nh6 Bd5 Qe5 Kb6 Ng4 Ne6 Nd4 Rf3 Ng1 Rf2 Ng3 Ka7 Bc3 Ba5 Qb4 Bc7 Qe1 Rd1 a1B Bb6 Bd7 Kb7 Rh7 Nc8 Bab2 Nd6 Bb5+ Bc7 Be7 Bb6 Bd2 Bc7 Nf1 Bb6 Qe4 Bc7 Ba4+ Bb6 Ke5 f6 Bc2 f7 Kf6 f8B Qf5 Ng5 Qe5 Bf7 Rg7 Ne6 Rh7 Nc8 Bc5 Bd6 Rg7 Bc7 Bf8 Be8 Rd7 Bf7 Qb3 Rc1 Bfa3 Nd6 Qb4 Rd1
6Bq/1K1p2PN/5bBP/2bnb3/2pPRNpB/4n1k1/p2r1nr1/5R1b b - - 0 1 legal: proof: f4 b5 b4 f5 c4 h5 e4 fxe4 g4 g5 c5 gxf4 g5 Kf7 Qg4 hxg4 a4 Ke8 a5 Bb7 Ra2 Ba6 Rc2 Bb7 Rc4 bxc4 b5 Ba6 b6 cxb6 axb6 Bc8 Ke2 Kf7 h4 Ke6 d4 Kf5 c6 a5 c7 e5 g6 a4 g7 f3+ Ke3 f2 h5 a3 b7 Bc5 Ne2 Na6 b8R Ne7 Rg1 Nd5+ Kd2 e3+ Kc2 e4 Rg2 Bb7 Nf4 e2 c8B e1B Rg1 e3 Nd2 e2 Bg2 f1N Ne4 Bh4 Nf6 e1B Nh7 Beg3 h6 Nfe3+ Kd2 Nab4 Rf1 Nd3 Bh1 Bc6 Bb7 Nf2 Bf3 Qf8 Re8 Bf6 Re4 a2 Be2 Rb8 Bd3 Qc8 Ba8 Rf8 Bc2 Rb2 Bb7 Nb6 Kc3 Rf7 Bb1 Rd2 Bd3 Qh8 Ba8 Bb5 Bd5 Bc6 Bc2 Rf8 Bg8 Rb8 Nh5 Bge5 Nf4 Na8 Bd3 Rbb2 Bc2 Nc7 Bd3 Ba7 Bb1 Rbc2+ Kb4 Ncd5+ Ka5 Bc5 Ka6 Rb2 Nf8 Kg5 Nh7+ Kh4 Bc2 Ba4 Bb1 Bd1 Bc2 Bf3 Bd3 Rbc2 Kb7 Bh1 Ba3 Bf8 Be7 Kg3 Bd8 Bc5 Be7 Bh4 Bg5 Rd1 Be7 Nh3 Bd8 Rg2 Bb1 Bc7 Re5 Rdd2 Bg6 Nf2 Re4 Be5 Ne6 Bhe7 Nf4 B7d6 Bf6 Be7 Bg5 B7f6 Bh4+
3b4/rB2p1B1/1kr1qbP1/1r3r2/5bPn/2NrBPq1/Nb3nb1/2R3KR b - - 0 1 illegal: Other
4rB1q/2k1R2q/n1q1pP2/1nb2b1r/7P/1K1R2nn/2NPB1rB/2N1nq2 b - - 0 1 illegal: No possible last move
1q4Nn/n3K2N/3BR3/2b1r1P1/3Rnb2/b1rr1b2/2PkprrP/n2B3B b - - 0 1 legal: proof: d4 a5 g4 g5 f4 gxf4 b4 axb4 e4 c5 g5 cxd4 e5 h5 Qg4 hxg4 e6 fxe6 Ba3 e5 Bc1 e4 Kd2 Kf7 a4 Ke6 a5 Kf5 a6 e5 a7 d5 Nc3 b5 Nh3 b3 Ng1 b2 Bd3 b1N+ Ke2 g3 Ra5 g2 Ra3 f3+ Kf2 b4 Kg3 b3 Ra5 f2 Nb5 f1R Na3 b2 Ra4 Bb7 Bd2 Nc6 Bc4 e3 Nf3 Ke4 Kg4 g1B Ba6 e2 Bb4 Ke3 Kf5 e1B Ke6 e4 Kf7 d3 Bc3 d4 Ra5 d2 Rc5 d1N Rf5 d3 Bg7 d2 Bf6 Nge7 Ne5 Qb8 Bc4 Ndc3 Nf3 d1R Bb5 Nd2 Bc4 b1R Nb5 Bg3 Na3 Rf2 Bd3 Nb3 Ne5 Bf4 Be2 Kd2 Nb5 e3 Nc7 Ng6 Nd7 Ne4 Nd5 Na1 Be5 Ba3 Nf8 Rh3 Bd6 Nh8+ Ke6 Rb5 Nh7 Rg2 Ndf6 Re5+ Kd7 Rf1 Bd1 Rff2 Ng8 e2 Rf6 Rc3 Re6 Nd4 Ke7 Nb5 Bc5 Ned6 Bb4 Bf3 Bc5 Ne4 Bb4 Rf1 Bd6 Bgc5 Rg1 Rff2 Rf1 Qb6 Rg1 Rd8 a8B Qb8 Bc6 Rg4 Rg3 Na7 Rh3 Rgg2 Rh4 Bb6 Bb4 Rd3 Bd6 Bbc5 Rg4 Bfe3 Rh4 Ng3 Rb4 Ne4 Rd4 Bf4 Be8 Rg3 Bh5 Bh1 Bg4 Bg2 Bh3 Bf3 Bg2 Rg4 Bh1 Rg3 Nh6 Rgg2 Ng8
5R1b/1q1b4/R5qP/3kqB1N/nNpP1rn1/r1p5/1N4PB/n1K1n1br b - - 0 1 illegal: No proof kernel
n4Rr1/N1qqBnn1/KRP1r3/1n1B3b/2N2Pnp/pr3P2/3bn3/kB6 b - - 0 1 illegal: Other
2nb3k/P1qPq3/1NrRNpb1/2qb4/1n2P3/1qr3bB/3bKp2/4RB1N b - - 0 1 legal: proof: g4 d5 b4 e5 c4 dxc4 f4 exf4 g5 a5 Na3 axb4 Qc2 f3 Qf5 h6 Bb2 g6 Bf6 gxf5 g6 f4 Bg5 hxg5 Nb1 Ke7 Kf2 Kd7 Ke1 Ke8 h4 c5 d4 b5 a4 c3 h5 f2+ Kd1 c4 g7 g4 e3 g3 h6 g2 d5 f6 h7 Kf7 a5 f3 a6 b3 d6 b4 d7 c2+ Kd2 c1B+ Kd1 c3 a7 b2 Nd2 b1Q Rh4 b3 Bd3 b2 Ra2 Qc7 Rf4 Be7 Rc4 Bb7 Rb4 Bd5 Rb3 Na6 Ne2 g1Q+ Nf1 Bd2+ Nc1 Rc8 Be2 Nb4 Bd3 Bd8 Ra1 Ne7 g8B+ Kg7 Be6 Rg8 Bef5 Kh8 Bh3 Rg3 Bc4 Be1 Nd2 f1Q Be2 Qe4 Nc4 b1B Nb6 Qfg2 Bd3 Qa2 Bdf1 Qgf2 Ne2 c2+ Kc1 Qee5 Rd3 Qb3 Rd1 Qg1 Ra6 Bf2 Kd2 Qed6 Re1 Qdc5 Bg4 Rh3 Be6 Qg7 Ng3 Qf8 Nh1 Bg3 Bf5 f2 Ke2 c1B Be6 Bg6 e4 Bd2 Bf5 Kg7 h8N Kh7 Nf7 Qe8 Nh6 Kh8 Nf7+ Kg7 Na4 Bh4 Rc1 Qe5 Ra1 Rc3 Be6 Bg3 Ng5 Kh8 Re1 Qb8 Rd6 Rc6 Bg4 Qc7 Bgh3 Nc8 Nb6 Qe7 Ne6
B7/2R1r3/1B1r1P2/pk2b1n1/R1pq1bn1/1bnPbP1N/3bb2N/Kn3B2 b - - 0 1 illegal: Other
2r5/1Pp4p/4nBb1/PRq1r1pr/2bb2Nr/1q1nq1BR/N1P5/1R1K2k1 b - - 0 1 legal: proof: g4 d5 h4 a5 e4 dxe4 b4 a4 g5 f6 Qf3 fxg5 Qe2 gxh4 Qd1 h3 Qf3 b5 Qb3 axb3 a4 b2 a5 Ra7 Bc4 Ra6 Bb3 Ra8 Ba4 bxa4 f4 Kd7 d4 Kc6 b5+ Kd5 f5 g5 f6 e5 b6 e3 f7 Ke4 d5 a3 b7 h2 d6 a2 d7 e2 Nh3 Kf3 Ng1+ Kg2 Nh3 e4 Rf1 h1B Ng1 Nf6 Rf4 Na6 Be3 Ng4 Ba7 Bg7 f8R Qe7 d8B Qc5 R4f5 Be6 Nf3 Bc4 Re5 Rc8 Ref5 Bd4 Nfd2 Ne5 Nb3 Kg1 Na3 b1Q+ Nc1 Qb3 Rb1 a1R Nb5 Ra4 Bb8 Nd3+ Kd2 e1R R8f7 Re8 Ba7 Re5 Na3 Bf3 Re7 Bh5 Na2 Bg6 Rf3 Rf1 Rh3 e3+ Ke2 Rd1 Rf7 Rf1 Rf5 Rc1 Bf6 Rb4 Kf3 e2 Bb6 e1Q Ba7 Be6 Nc4 Rd1 Ne3 Bc4 Ng4 Rd2 Rf4 Rh2 Re4 Rh1 Bb6 Qc1 Ke2 Ra4 Rb2 Qf4 Kd1 Qe3 Rb1 Rh2 Rf3 Rh5 Rh3 Qc6 Rf4 Nac5 Rf5 Ne6 Bc5 Rb4 Bd6 Qc5 Nh6 Re4 Bg3 Rb5 Rd5 Reh4 Ng4 Qe7 Rd6 Re5 Rb6 Qc5 Rb5
1N4QQ/qrR4n/1B2qbrP/1Pb1p2q/1kQ5/rP6/2n3r1/1Kb2N2 b - - 0 1 legal: proof: e4 a5 a4 c5 g4 f5 d4 cxd4 g5 fxe4 b3 b5 axb5 a4 c4 a3 g6 hxg6 Ra2 g5 Re2 g4 b6 Ba6 Bh3 Bb5 cxb5 Rxh3 Rb2 a2 Rc2 Rh8 Rc8 Na6 Rb8 Nxb8 Kd2 a1B Kc2 g5 h4 d5 f4 Kd7 f5 Kd6 h5 Kc5 h6 d3+ Kd2 d4 f6 g3 f7 g4 b7 e3+ Ke1 d2+ Ke2 d3+ Kf1 e2+ Kg2 e1Q Nh3 Nf6 Qc2+ Kb4 Qa2 d1Q Nf2 d2 Rh3 Rh7 Bb2 Qd7 Be5 Nc6 b8Q Qa7 Ne4 Nd4 Rh2 Nc2 Qe8 e6 Rh1 Bc5 f8Q Rb7 Qh8 Nh7 Bc7 Bf6 Bb6 Qe3 Qf7 Rg8 Rh3 Rg6 Qfg8 e5 Qa6 Qc3 Qa1 Qc4 Qd4 Qe2+ Kg1 g2 Rc3 Qd1+ Kf2 g1R Ng5 Rg3 Nf7 Qh1 Nd8 d1R Nd2 Ra1 Nf1 Ra3 Qf7 Qh5 Qfg8 Bf8 Qd3 Qe6 Ke2 Rg2+ Kd1 g3+ Kc1 Bc5 Kb1 Be3 Rc7 Bc1 Qhg7 Rd2 Q7h8 g2 Qd5 g1B Qd3 Bd4 Qe2 Bc5 Nc6+ Kc3 Nb8 Kb4 Qd3 Rdg2 Qc4+
2nq1q2/rrk3rR/3Q2B1/3n1P1Q/r1rBQPnn/2n1b3/1N4P1/4nK2 b - - 0 1 legal: proof: b4 a5 h4 axb4 d4 g5 a4 gxh4 d5 f5 Nd2 b6 Ra3 bxa3 Ne4 Bb7 d6 cxd6 f3 d5 f4 d4 Nc3 Bf3 Ne4 fxe4 exf3 Bg7 Ne2 Bh6 Ng1 Bf8 c4 h5 f5 d5 a5 Kd7 f4 e5 c5 b5 a6 h3 a7 d3 c6+ Kc7 Kf2 e3+ Ke1 d2+ Ke2 e4 Bb2 h2 Nf3 d4 Qe1 d1N Ng5 a2 Ba1 h4 Nh7 b4 Qg3 h3 Qg6 d3+ Ke1 b3 Qf7+ Nd7 Qc4 b2 Qa4 b1R Bd4 a1R Qa2 e2 Bg1 Ne3+ Kf2 e1N Qa5+ Nb6 Qb5 d2 Qc4 d1N+ Ke2 Bc5 Qf7+ Ne7 Qc4 Rg8 Bf2 Nbd5 Qa2 Rg7 Ng5 Rb7 Qa3 Ng4 Nf3 e3 Qd3 Nc8 Ne5 Ra4 Nc4 Nf3 Nb2 Nh4 Ke1 e2 Bd4 N1c3 Qe4 Rab8 a8Q Rba7 Qe8 Rbb7 Qh5 Ne5 Kf2 e1N Be2 Ng4+ Kf1 Rc4 Bf6 Be3 Bd4 Kd6 c7 Raa4 Rg1 h1Q Bd1 Qh2 Rh1 Qg3 Qb8 h2 Bb3 Raa7 Ba4 Qf8 Be8 Raa4 Bg6 Qd8 Rg1 h1R Qa8 Rh2 Rh1 Rba7 Bb6 Nhf3 Qb7 Qgh4 Qh6 Qhf6 Bd4 Re7 Qg5 Nb4 Qh4 Nb6 c8Q Qff8 Qh8 Rhh7 Qba8 Rhg7 Rh6 Nh4 Qe4 Reb7 Qce6+ Kc7 Rh5 Nc8 Qh6 Ra1 Qg5 R1a2 Rh7 Nbd5 Qh5 R2a4 Qd6+
r7/1R3b2/1p1nQnq1/Q2r1BN1/b1n3PP/1r2PR1q/K7/2Qk1qbb b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 gxf4 a4 bxa3 Ra2 e5 Nc3 d5 cxd5 h5 Ne4 h4 Ng3 hxg3 Bb2 Rh7 Ra1 Rh8 Bd4 e4 Bf2 e3 Qb3 exf2+ Kd1 Be7 Kc1 Bb4 Qd1 Bf8 Kb1 Ke7 h4 Kf6 d4 c5 d6 g2 d7 f3 d5 Ke5 d6 Ke4 Qb3 f5 Qc4+ Ke3 Qb3+ Kd2 Ka2 b6 Qc4 f4 Qe4 c4 Qb7 c3 Kb1 c2+ Ka2 c1N+ Kb1 a2+ Kb2 Nf6 Qa7 Ne8 Qa3 Kd1 Rh2 Qf6+ Qc3 Rh5 d8Q Rd5 d7 Qg6 Qe7 Bb7 d8Q Nd7 Qcc5 Ndf6 Qee3 Nd6 Nh3 g1R Qcc7 Rg3 Bg2 f1Q Rh1 f2 Qg7 f3 Qdd7 Bc6 Qge7 Ba4 Qc5 Bh6 Qe4 Be3 Rh2 Qh1 Qdc6 f1B Qe5 f2 Be4 Bg2 Bd3 f1B Ng5 Bg1 Bb1 Nb3 Qa5 Nd2 Qe6 Bf3 Rf2 Qh3 Qcc3 Bh1 Rf4 Rgd3 e3 Be2 Qc7 Ra3 Qc6 Bc4 Rf3 Bcb3 Kc3 N2c4 Bf5+ Ke2 Rd1 a1Q+ Kb4 Qb1 Rd4 Qbf1 Rd3 Nd2 Qc1 N2c4 Rc3 Nd2 Rc7 N2c4 Qc3 Kd1 Rb7 Be8 Qb2 Bba4 Qc3 Bf7 Qb2 Rad3 Qc3 Bd7 Kb3 Bc6 Ka2 Ba4 Qb2 Rb3 Qc1+
8/3nn3/1n1kNqN1/pq1b4/b2pRQr1/2bPQP1r/2n1PK2/1NrB4 b - - 0 1 legal: proof: c4 b5 h4 bxc4 a4 g5 b4 gxh4 a5 e5 b5 c3 Nh3 c5 Ng1 c4 Nxc3 e4 Nb1 c3 Ra4 Qxa5 Ra1 Qd8 g4 f6 d3 e3 g5 Bg7 g6 Nc6 Bd2 Bf8 Ra4 Bb7 Rg4 Nb8 Rg5 fxg5 Qa4 exd2+ Kd1 Bf3 Qc2 Bg2 Qc1 Bf3 Kc2 Bb7 Qd1 Bc8 g7 Ke7 b6 a5 b7 d5 Bh3 h5 Qe1 d1N Nd2 g4 Kc1 d4 Nc4 c2 Kd2 c1R Bg2 g3 Nb6 h3 Bf3 h2 Bc6 g2 Na4 h4 Be8 h3 Bc6 Nb2 Bd5 Kd6 Ba2 Bd7 Bc4 Qf6 Qf1 Ne7 Nc3 Ba4 g8N Nd7 Nf3 g1N Bd5 Ra6 Qd1 Nc4+ Ke1 Ncb6 Ng5 Nf3+ Kf1 Ra7 Nb1 Ne1 Bb3 Nc2 b8Q+ Rc7 Rg1 h1Q Ne6 Qb7 Rg4 h2 Re4 Rh3 Kg2 Qc6 Qd2 Qb5 Qe3 Bh6 Qf8 Bf4 Qh6 Rc5 Qh4 Rg5+ Qhg3 Rg4 Kf3 Nb4 Bd1 Nc2 Kg2 h1B+ Kg1 Ned5 Ne7 Bf3 Ng6 Ne7 Re5 Bd5 f3 Bh6 Kf2 Bg5 Re4+ Bf4 Qh4 Bg3+ Kf1 Be1 Qhh6 Bd2 Kf2 Bc3 Qhf4+
1q2nrnQ/r5bb/2rQn2n/PQ3r2/5P1K/1P1bk1N1/b3nNR1/3b3B b - - 0 1 legal: proof: h4 c5 e4 g5 d4 gxh4 b3 cxd4 Nc3 a5 Rb1 f5 Rb2 fxe4 Nb5 a4 Nc3 a3 Nd5 axb2 a4 b5 Bd2 Nh6 Nc3 Ng8 Nb1 Ba6 Bd3 Bb7 Bf1 Bc8 Bf4 Ra5 Bd6 Ra8 Ba3 b4 Be2 bxa3 Bc4 Ra5 Bf1 Ra8 g4 Kf7 f4 Kg6 Kf2 e5 c4 d5 c5 h5 g5 Kf5 a5 a2 c6 a1R c7 h3 Kg3 h2 g6 e3 g7 Ke4 Nf3 h4+ Kg2 e2 Ng1 e1N+ Kf2 h3 Kg3 d3 Qd2 d4 Na3 b1B Ne2 Ba2 Nb1 Ra7 Na3 Ba6 c8Q Rc1 Qb2 d2 Qa1 d1N Nb1 d3 Qb2 d2 Qg4 Rc6 Nbc3+ Ke3 Qa1 e4 Qd7 Nd3 Rg1 h1B Na4 h2 Kg4 Nc5 Qf5 Nf2+ Kg3 d1B Qh7 Nbd7 Nc1 Ndf6 Bh3 N2g4 Qc3+ Bd3 Nb2 Qb8 Rf1 Ne6 Rf2 N4h6 Qc4 Ne8 Qb5 Bg2 Qg6 h1N+ Kh4 Ng3 Bg4 Ne2 Bf3 Bh3 Rg2 Bf5 Qf6 Bh7 Qe7 Ngf6 g8Q Bg7 Qgf8 Nfg8 Qa3 Ne7 Qf6 Rf8 Qd6 Neg8 Qfd8 Bc4 Nbd3 Rf5 Nf2 Bd3 Qdd5 N8c7 Qdc4 N2d4 Qb7 Nc5 Qbb4 Nf6 Qa3 Kd2 Qb5 e3 Bh5 e2 Bg4 e1R Rg3 Re8 Ne2 N5e6 Bf3 Ke3 Qad6 Rh8 Q8f8 Nce8 Rg1 Rg8 Ng3 Ne2 Be4 Bh8 Qg7 Rf8 Bh1 Nfg8 Qc3 Bd4 Rg2 Bh8 Qcb4 Bb2 Qc3 Ba1 Qh8 Bb2 Rg1 Bg7 Rg2
1q1NQ3/b1B2P2/1rr3nr/Q7/rR2Pr2/4r2Q/nKPRnr2/r1n1k2b b - - 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 e5 Nf3 gxh6 Ng1 h5 Rh2 h4 Rh3 Qg5 Rh1 Qd8 e3 f5 Bc4 e4 Bd3 exd3 Nc3 f4 e4 Ne7 Nd5 Ng8 Ne3 fxe3 a4 Ke7 f4 Kd6 g4 Kc5 a5 Kc4 f5 Kc3 g5 d5 g6 h5 f6 b5 a6 d2+ Ke2 h3 f7 h2 a7 d3+ Kf1 d4 g7 b3 Ra3 h4 Qe1 b4 Nh3 e2+ Kf2 Bc5 Rf1 h1N+ Kf3 Nc6 Qf2 d1R Re1 d2 Qe3+ d3 Ra6 b2 Ra4 b1R Ra1 b3 Qg5 b2 Qg1 Nd4+ Ke3 Ng3 Qf2 Rh6 Ng1 h3 Nf3 h2 Ra3+ Nb3+ Nd4 h1R Rg1 e1R+ Qe2 Ne7 g8Q Ng6 Ra4 R1h2 Qh7 Bg4 Qg7 Ra1 Ra6 b1R Rf1 Qb8 Qh8 Bf3 Qh7 Bh1 Qg7 Rf2 Ba3 Nc1 Qe5 Rb6 Ra4 Rc6 Qe7 Rb1 Qc7 Rbb6 Rb4 Rf4 Rf3 Rf1 Qh2 Rf2 Qd8 Nge2 Qh3 Re1 Qe8 d1R Rg3 d2 Rg2 Na2 Rh2 Ra1 Rg2 Nac1 Rh2 Bd6 Ne6 Be7 Nd8 Bd6 Rd4 Bc5 Bb4+ Kb2 Ba5 d1N+ Kd2 Ndc3 Ra4 N3a2 Rc4 Nb3+ Kd3 Kc1 Rb4 Kd1 Kc4 Nbc1 Rg2 Nd3 Kb3 Ndc1+ Ka3 Rg1 Rh2 Rg3+ Kb2 Re3 Rg2 Rb7 Bc7 Rbb6 Rg5 Kd2 Rd5+ Ke1 Rd2 Ra6 Rd3 Qb6 Qh4 Rb8 a8Q Ra4 Rd7 Qb7 Qa6 Ba7 Qa5 Qc8 Rd4 Rbb6 Rd2 Qb8 Qh3
KN2qrq1/1B3qN1/R3q3/Pnb3p1/2QQ1Pb1/3nN1k1/2b1rPnn/5n2 b - - 0 1 illegal: Other
nqRQBBK1/1bq5/1b1P1b2/n1BQ1r1q/7p/4PP2/n3q1br/2N1q1k1 b - - 0 1 legal: proof: h4 d5 b4 f5 a4 b5 d4 bxa4 c4 dxc4 d5 e5 e3 g5 Nc3 gxh4 Kd2 f4 Nce2 f3 Ra3 fxe2 Rd3 Bb7 Rd4 exd4 Ba3 Ba6 Bc1 Bc8 g4 Ke7 g5 Kd6 b5 Ke5 b6 Ke4 b7 e1Q+ Kc2 a5 g6 c5 g7 h5 Ne2 Kf3 Qd3 a3 Bd2 c3 Kb3 c2 Kc4 c1N Nc3 h3 Na2 h2 Rg1 h1B Qc3 d3 Qd4 a4 Bh3 Qe2 Nb4 a2 Be6 a1Q Re1 Kg2 Bg4 a3 Nc6 a2 Qc3 Na6 b8B Nc7 Qa3 Ne7 g8Q Bb7 Qe6 Ra5 Qf6 Na8 Bf4 Qb8 Nd8 Nc6 Bb4 d2+ Qd3 d1Q Bd7 Be7 Nf7 Bd8 d6 Bb6 Kd5 c4+ Ke6 c3 Qh4 c2 Bh6 Rf5 Qd8 Na5 Ne5 Kh2 Qd5 Bg2 Bg7 Qb1 Nd3 a1B Rf1 Bf6 Kf7 Na2 Bf8 c1Q Be8 Qc6 Nc1 Qcc7+ Qe7 Qde1 Bc5 Qbb5 f3 Rh6 Rf2 Kg1 Qd7 h4 Kg8 Rg6+ Bg7 Rg3 Qd8 Rh3 Bh6 Rh2 Bf8 Qec4 Rc2 Qg4+ Bg7 Qh5 Bf8 Qbe2 Bd4 Qd7 Rc8 Qdc7 Bc5
2rbQ2n/3K1N1b/5P2/1Pb2k2/2rbrB2/1Qr1pPbq/n5RN/2Nr3b b - - 0 1 illegal: Other
b3bn1r/2r3q1/4PqPq/1BP5/r1N3n1/qBb1BQK1/Q2p2n1/1bR1k3 b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 gxf4 a4 h5 d5 e5 g5 e4 Nd2 c6 Rb1 cxd5 Ndf3 d4 Rb3 Bh6 Ne5 Bf8 Ng4 hxg4 Rf3 exf3 Kf2 Ke7 c4 Kd6 e4 Ke5 h4 b5 h5 d5 h6 f5 a5 d3 h7 Kd4 e5 Kc3 e6 d4 c5 b3 a6 b4 a7 b2 Rh4 b1R Qe2 b3 Bg2 g3+ Ke1 f2+ Kf1 d2 Qf3+ d3 Qc6 d1B Be4 b2 Kg2 f1N Qd5 f3+ Kh3 g2 Rh5 f4 Qd6 f2 Nf3 g1Q Qa6 Nf6 Nd4 f3 Nc6 Qa5 Rh6 Bb7 Nd4 Qa3 Be3 Ba4 Bd5 Ng4 Bc6 Nd7 Rg6 Bg7 Bc1 Nf8 Qb6 Nfe3 Bd7 f1Q+ Kh4 f2 Nc6 Ng2+ Kg3 Qh1 Be8 Qh6 Ne5 Qg1 Qa6 f1Q Be3 Qf6 Nc4 d2 Bc6 Kd3 Bb5 Ke2 Qc6 Ke1 Qf3 Rc8 a8B Bc6 Bb7 Ra1 B7a6 b1B Bb7 Rg8 h8Q Rc7 Qh7 Be8 Bd5 Rh8 Qg8 Bc6 Qf7 Ba8 Qe7 Rc6 Qa7 Rc7 Qa5 Qf5 Qa6 Bc3 Rg7 Qff6 g6 Qf1 Rh7 Qhg7 Rh1 Qh6 Qa7 Qfg7 Ba6 Bd7 Bb5 Be8 Qa4 Qb2 Qb3 Ra4 Qa2 Qa1 Nd6 Qb2 Bb3 Qa3 Nc4 Nh4 Qa1 Ng2 Qc6 Ke2 Qa2 Qff7 Rc1 Qff6 Bd1+ Kf1 Qf3+ Ke1 Bb3+
q1nnk1B1/1b2r3/1r1rp1QK/qR2N2P/5Qb1/Pqb3p1/1RP1rn2/6R1 b - - 0 1 legal: proof: d4 a5 g4 g5 f4 f5 e4 fxe4 b4 axb4 f5 c5 Bf4 cxd4 Nd2 gxf4 Ndf3 h6 g5 h5 Ne5 Ra7 Ng4 hxg4 Kd2 Ra5 Ke1 Ra8 Kd2 d5 h4 b5 a3 g3 g6 Ra7 f6 d3 g7 d4 Nh3 b3 Ng1 b2 Rh3 b1Q Rh1 b4 Rh2 e3+ Ke1 d2+ Ke2 b3 Kf3 b2 Rh1 d3 Nh3 e2 Nf2 e1Q h5 Rh6 Rh2 Nc6 Qe2 d1N Bh3 d2 Ke4 f3 Nh1 f2 Kf4 f1R+ Kg5 Rf2 Qf3 Re2 Qf2 Qd5+ Qf5 Nd8 Rg2 Qa8 Nf2 Rd7 Qe5 Bb7 Nd3 Nf2 Qf4 e6 Ra2 Rh7 Bf5 Ne7 g8Q Nc8 Rg1 Rd4 Qg7 Bb4 Qh6 Rf7 Bh7 Re7 Bg8 Rd6 Qh7 d1B Qhe4 Re3 Kh6 Bg4 Qef5 Re2 f7+ Kd7 f8R Qc3 Rf7 Ke8 Qf6 Qbe1 Rg7 b1R Rg5 Ba5 Q6f5 Rbb6 Rb2 Qb3 Qf6 Qeb4 Rb5 Q4a4 Q6f5 Bc3 Ne5 Q4a5 Qg6+
1q3b1n/n1bR2n1/3PP2b/3K2p1/N1Q2QkN/3prrb1/1q1QPB2/3b1n2 b - - 0 1 illegal: Other
q1bnkbN1/4b3/1Q4Qq/P1RrN3/1q2r1rB/1Pr1bK2/pp1P3Q/2n5 b - - 0 1 legal: proof: e4 f5 b3 fxe4 Bb2 a5 Bf6 a4 Nc3 b6 Bh4 a3 Rb1 Ra5 Rb2 axb2 a4 Ra8 a5 Bb7 Bb5 Bc8 Ba4 b5 Kf1 bxa4 Ke2 Ba6+ Ke1 Bc8 Nb1 d5 c4 dxc4 Bg3 g5 h4 gxh4 Ke2 c5 f4 h5 f5 e5 f6 h3 Qc2 a3 Ke3 h4 Bh2 c3 g4 c4 g5 a2 g6 Ne7 g7 Nd7 g8Q Qb6+ Ke2 e3 Qg3 e4 Qf2 Rg8 Qf1 Rg4 Qf3 Qb4 Bf4 h2 Qc1 h3 Qg3 c2 Qge1 c3 Nf3 Ne5 Nd4 N7c6 Bg3 Nd3 Ne6 Nd8 Rg1 h1Q Qed1 h2 Bd6 Ra7 Re1 Rd7 Bc7 Rd5 Bg3 Qg2+ Bf2 h1Q Nc5 Qh6 Na3 Qgh1 Qa1 c1R Bh4 c2 Nc4 Rb1 Nd7 c1R Nce5 Rc3 Qc2 Nc1+ Kd1 Qg2 Rh1 e2+ Ke1 Qh3 Kf2 Qd3 Rh3 e3+ Kf3 e1B Rg3 Re4 Rg5 Qa6 Qd3 e2 f7+ Ke7 Qe3 Qa8 Nf6 Bf2 Rh5 e1B Ng8+ Ke6 Qd3 Be3 Qe2 Bg3 Qh2 Be7 f8Q Rg4 Nd7 Bgd6 Qg7 Re4 Qgg3 Kf7 Ne5+ Ke8 Qg5 Bf8 Qf6 Bde7 Qb6 Ne2 Rf5 Rg1 Qe1 Nc1 Qeg3 Nf7 Qgg6 Rgg4 Rf6 Qa4 Rc6 Qb4 Qf6 Nd8 Rc5 Qd4 Qf5 Qb4 Qfg6+
1br4r/N2knqb1/2pr4/1B3QK1/4q3/2qP1pb1/P1rN1QP1/Rn4Qb b - - 0 1 illegal: Other
4N2N/1KBk1b1r/1P1P1q1b/bN5b/2p4p/qRQ5/3nP1r1/rrnn2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 d5 h5 dxc4 Ra2 e5 Ra1 exf4 b4 Ne7 g4 Qd6 Rh4 gxh4 g5 Qd7 g6 Qd8 g7 Bh3 Bg2 Bc8 Be4 Ng8 Bg6 hxg6 Ra3 Be7 Rh3 Bd6 Rh1 Bf8 Kf2 f5 Kf3 c5 d4 a5 b5 a3 b6 a4 d5 g5 h6 g4+ Kf2 a2 h7 a1B d6 f3 Ke3 a3 Rh2 g3 Qd3 a2 Rg2 f4+ Ke4 c3 Kd5 c2 Nd2 c4 Nb1 f2 Qf3 f1R Qe4+ Be6+ Kc5 f3 Nc3 f2 Nh3 Ne7 g8Q Nd5 Qf4 Ne3 Bb2 c1N Qfg4 Kd7 Qf5 Nc6 Qc2 Na5 Rh2 g2 Ne4 g1R Nhg5 Nab3+ Kb5 Nd1 Rh1 Bh6 Nf3 Qf6 Qg2 Bf7 Rh3 Nd2 Nd4 Ra4 Qg5 Rg2 Rb3 Rh1 Kc5 f1B Nb5 Rb4 Be5 Bc3 Qe3 a1Q Qg1 Qa3 Qb2 Ra8 h8N Ra7 Bf4 Bh5 Bg5 Rba4+ Kd5 Ba5 Qc3 Kc8 Kc6 Rh7 Nc7 Kd8 Kb7 Kd7 Rb5 Rb4 Ne8 Rb1 Rb3 Rgh2 Qb2 Bh3 Nc3 Rg2 Nb5 Be6 Qe5 Bef7 Qc3 Qf1 Be7 Qf6 Bd8 Ra1 Be7 Nb2 Qf1 Na2 Qf2 Rhb1 Bd8 Nc1 Qg1 Nd1 Bc7
2q5/q1b1B1NP/4q1kP/1r2n2P/Qnn1p2R/p3pQN1/2r1rQb1/1b4K1 b - - 0 1 illegal: Other
Bbbq1Q1q/2Rkpr2/1b1rr3/6QP/5R2/RK3npP/3Pp3/1n1n1N1q b - - 0 1 illegal: Other
r2q1N2/1p1n1nK1/p1N2Q2/r1n2r1k/PN2b2p/1bRBQ2P/r1q4P/b7 b - - 0 1 illegal: Other
r2Qb3/r1P5/Q5Q1/rrPK1B2/pN4p1/k4npb/1pnbbBP1/1q3R2 b - - 0 1 illegal: Other
5k2/Qnn2qpr/npK1QP1B/NP1nP1b1/1p5B/R4pr1/2pn4/1b3B2 b - - 0 1 legal: proof: c4 a5 g4 e5 b4 d5 g5 dxc4 b5 h6 Qb3 hxg5 Qc3 g4 Qb4 axb4 a4 e4 f4 Na6 Ra3 Nb8 Rd3 Qd6 Rf3 Qd8 Nc3 exf3 e4 f6 e5 f5 Ne4 fxe4 Kf2 c5 Ke3 c3 h4 b6 d4 c2 a5 c4 a6 g3 f5 c3 d5 g2 Kd4 e3 d6 e2 Kd5 e1N a7 Rh7 h5 Qc7 h6 Qf7+ Ke4 Be7 d7+ Kf8 d8B Na6 Ne2 g1N Be3 c1N Bg5 Nf6+ Kd4 Ned3 Rh2 Ne8 Rg2 Rb8 a8Q Ndc5 Qa7 Nb7 Ke4 Bd7 Nd4 Nge2 Nc6 Nb3 Na5 Nf4 Ra2 Nec7 Ra3 Nfd5 Bd2 Bg5 Bf6 Bf4 Bh4 Bg5 f6 Re8 Be3 Nd2+ Kd4 Bf5 Bf4 Rh8 h7 Bb1 Be3 c2 Bf4 Rg8 h8Q Rc8 Qh7 Rh8 Qf5 Rh7 Qe6 Ne8 Be3 Rc4+ Kd3 Rg4 Bf4 Nc3 Kd4 Rg3 Be3 Na2 Kd5 Nc3+ Kc6 Nec7 Bf2 N3d5 Be1 Be3 Bg5 Bf4 Bh6 Bg5 Bf2 Rg1 Bh4 Rg4 Rd3 Rg3 Ra3
1q6/2N2RqB/2PRR3/2b2bNK/Pb6/bq1n4/qn2N2P/1b1qr1kq b - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 a5 f4 axb4 Qd2 e5 Qd3 exf4 Qa3 bxa3 g4 b5 Be3 f5 Bf2 h6 Nd2 f3 Bh4 f4 Bg5 hxg5 Nb1 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Qa5+ Kd1 Qb6 Ke1 Qd8 Kf2 Ke7 e4 Kd6 c4 Kc5 f6 d5 e5 b4 f7 b3 e6 d3 e7 Kd4 e8R g4 c5 g5 c6 g3+ Ke1 g4 Re3 b2 Re2 a2 Re3 d2+ Kd1 g2 Bd3 f2 Ke2 g3 Kf3 d1Q+ Re2 Nh6 Bc4 Na6 Nd2 b1B Bd3 Qb3 Nc4 f1Q+ Rf2 Ng4 Nh3 g1B Na3 g2 Nc4 Ba3 f8N Ne3 Bf5 Nc5 Na5 Qfc4 Bd3 Nd1 Nb7 Nb2 Ng5 Bf5 Nd6 Qdb8 Ng6 Re8 Nb7 Re1 Re2 Be3 Rf2 g1B Nd6 Bd2 Re2 Bdb4 Kg2 f3+ Kg3 f2 Kh4 f1Q Rd2 Ke3+ Be4 d4 Kh5 d3 Rf2 d2 Nf4 d1Q+ Ne2 Ncd3 Ne8 Qcc3 Nc7 Qg7 Bd5 Qg2 Bg8 Qgd5 Rf4 Bf2 Rf1 Qh1 Rd4 Bg1 Rd6 Bf2 Nh7 Kf3 Re6 Kg2 Ng5 Bfc5 Rd6 Bc2 Rc1 a1Q Bh7 Bb1 Rc4 Qaa2 Re4 Bd7 Rf7 Bf5 Ree6 Qd2 Nc3 Kg1 Re3 Qdc2 Ree6 Qd1+ Ne2+
k1K4b/1pnR2bn/1Qq1rq1B/bn6/4BPPn/2R2p2/r3P1r1/1BR5 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 f5 g4 fxg4 d4 cxd4 Nf3 e4 Nbd2 exf3 Ne4 a5 Nf2 axb4 Bh3 g3 Ng4 Qf6 Ne5 Bc5 Be6 Be7 Ba2 Bf8 Nc4 Qd8 Na3 bxa3 h3 g5 Qd3 d6 Bb1 g4 Qd1 g2 Rg1 g3 Rh1 Bg4 hxg4 Ra7 Qd2 Ra5 Qd1 Ra8 Kd2 Kd7 Kd3 Kc7 Kc4 g1R Kd5 h5 Ke6 d5 c4 d3 c5 d4 a5 d2 a6 d3 c6 h4 a7 a2 Bb2 g2 Rh2 h3 Bd4 Rh6+ Bf6 Na6 Qb3 d1N Rh1 d2 Qc4 h2 Bf5 Bg7 Qd3 Nc3 Qc4 d1N Qb4 Ne3 Bg6 Nb5 Bc2 Nf5 Bd3 Nh4 Re1 a1B Qd4 Kc8 Bb1 Nac7+ Kf7 Bc3 Bg5 Re6 Rc1 Ba5 Rc3 Nf6 Qb6 Nh7 Bh6 Qf6+ Kg8 Rb8 a8R Bh8 Ra6 Ra8 Be4 Kb8 Bb1 Qd4 Kf7 Ra7 Be4 Ka8 Bb1 Bb4 Ra2 Ba5 Rd2 Qe5 Rd7 Qf6+ Kg8 Rf1 Be4 Rf2 Rhc1 g1B Bb1 h1Q Be4 Nd5 c7 Rg2 c8B Bd4 Bb1 Ndc7 Be4 Qg5+ Kf7 Bdg7 Bb1 Qc5 Be4 Qc6 Bb1 Rf6+ Ke7 Re6+ Kd8 Qd1 Rdd3 Qb3 Bd7 Qb4 Kc8 Qe7 Be8 Qf6 Bg6 Bb4 Rd4 Ra2 Rd7 Ba5 Bge4
2B3N1/p1N2K2/pk3p2/p7/r1n2bQP/pp3PB1/qPnN1n2/2B1r2q b - - 0 1 illegal: Other
4Qqnq/1KNbbqN1/1Rn4r/Pp2N3/1P1R2bR/3n1r2/1b1P1k2/br6 b - - 0 1 legal: proof: f4 a5 h4 g5 c4 gxh4 c5 e5 b3 exf4 e3 a4 c6 f3 Bb2 a3 Bc4 axb2 Be2 fxe2 Kf2 dxc6 Rh2 c5 Rh1 c4 Kf3 Ke7 Ke4 Kf6 g4 Kg5 a4 e1N b4 b5 a5 h5 Qf3 c5 Qd1 f5+ Ke5 c3 e4 c4 Qa4 c2 Ra2 c1B Rh2 c3 Na3 b1R Nc4 c2 Rg2 h3 Nb2 Kh4 g5 f4 g6 h2 g7 h1Q Rf2 Kg3 Nc4 h4 Ra3+ f3 Nh3 Bg4 Rh2 Be7 Ng5 h3 Qb3 Rh6 Qe3 Qf8 Kd5 Bb2 e5 c1B e6 Ba1 Ne5 Bcb2 Rd3 Nc6 Rd4 Nd3 Qe2 f2+ Qe4 Bd8 e7 f1Q e8N Be7 Nc7 Q1f7+ Nge6 Ra6 Nc4 Rf6 Ne5 Rf3 Qg6 Qf6 Qe8 Q6f7 Re2 h2 Ree4 Kf2 Rf4 Nh6 g8R Rb6 Rg6 Ng8 Na6 Qf1 Nc7 h1B Rh6 Qh3 Rhf6 Qh8 Rfe4 Qg6 Ng7 Bg2 Rd6 B2h3 Rf4 Bd7 Rh4 Bhg4 Rf6 Ra6 Re6 Nd8 Rb6 Nc6 Rf4 Qgf6 Rd4 Q6f7+ Nce6 Nb8 Rb7 Qfh5 Nc7 Rh6 Rb6 Ne1 Rd6 Qhf7+ Kc5 Nd3+ Kb6 Kf1 Kb7 Kf2 Ra6 Nc6 Rb6
3N1k2/KPr1Nq1n/pR1q4/4bP1b/5bR1/Pr1Q3N/2n1p1n1/3nRqr1 b - - 0 1 legal: proof: d4 g5 e4 f5 c4 fxe4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 g4 Nh6 f4 Ng8 f5 h6 Bf4 gxf4 g5 h5 Be2 Kf7 Bf3 Ke8 Bg4 hxg4 Kf2 e5 b4 c5 h4 d5 a3 d4 h5 e3+ Kg2 f3+ Kg3 d2 b5 f2 g6 f1Q h6 a6 h7 e2 g7 e1N b6 d3 b7 e4 Qe2 d1N Qf3 e3 Kf4 e2 Ke4 g3 Rh4 g2 Rg4 c4 Qf4 d2 Qe5+ Qe7 Kd5 c3 Rd4 c2 Nf3 g1R Qf6 c1B Qe5 Ng2 Qe6 Nf6+ Kc4 Bd7 g8R Nc6 Rg6 Bg7 Rdg4 Kf8 Ng5 Nd4 Qe3 Be8 Nc3 Nc2 Qd3 Qf7+ Kc5 Rc8+ Kb6 Rc7 Ka7 Rg8 h8N Nh7 Rh6 Be5 Nh3 Rg6 Rb1 Rb6 Nd5 Rb3 Rb6 Nc3 Qd4 d1Q Ne7 Bcf4 Qd3 Qd2 Re1 Nd1 Qe4 Qd6 Qd3 Qfe6 Nf7 Qed7 Nh6 Bh5 Nf7 Q7e6 Nd8 Qc4 Qd2 Qf7 Qd3
1bb1n2b/3Prp2/2K3pB/2nRr2r/Bp2B1qk/6PP/1Rnn1R2/N3n3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 h5 f5 a5 Qb3 axb4 Nc3 g6 Ne4 e6 Qe3 exf5 Qf3 f4 Qg4 hxg4 Ng5 Qd6 N5f3 gxf3 Rb1 Qd4 Ra1 Qd8 Kf2 Ke7 a4 Kf6 d4 Kg5 e4 c5 e5 b5 e6 b3 h3 c3 a5 c2 a6 c4 a7 b4 d5 b2 d6 b1N d7 c3 e7 Nf6 e8R Nd2 Ba3 c1N Re7 c2 Be2 Kh4 Bb2 Bg7 Ra4 Na6 Bf1 Ne8 Be5 Rh5 Ra5 Nc5 Bb5 Bh8 Ne2 Qc7 Ba4 N1d3+ Kg1 c1B Nd4 Qb6 Nc2 Ne1 Kf2 Qe6 Bg7 Qg4 Na1 Bb2 Re2 Be5 Rf1 Bb8 Bh6 Re5 Kg1 f2+ Kh2 f3 Rb5 Nc4 Rb2 Ne3 Ra5 N3c2 Rb5 Bc7 Ra5 Rb8 a8B Rb5 Bb7 Bb8 Be4 Rb6 Rb5 Rbe6 Ra5 Na6 Rd5 Re7 Rh1 f1R Rg1 Rf2 Rf1 Rd2 Kg1 Rd4 Kf2 Rc4 Bf8 Nc5 Bh6 Na3 Ke3 f2 Rd6 Rc1 Kd4 Nac2+ Kc4 Rd1 Kb5 Rdd5 Kb6 Rh5 Kc6 Rdg5 Rd5 Rge5 Rh1 f1N Rg1 Nh2 Rf1 Nhf3 Rf2 Nd2 g3+
kb2b3/nq3R2/B2PN2p/3b4/P2p2pr/pNr1pn1b/2PB1n2/KBN5 b - - 0 1 illegal: No proof kernel
6k1/Q1r2q1n/2rB1n2/r2Bn1P1/R1q2P2/n1P3K1/1pn1RQ2/1qnbQ3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 a3 b5 e6 g6 Bg5 fxe6 Ne2 e5 Qd3 e4 Nc1 b3 Bf4 b4 Qd1 b2 Ne2 b3 Ng1 Ra7 Bc1 Ra8 f3 g5 Nd2 g4 f4 Bg7 Qe2 Be5 Qf3 Bd6 Qd1 Bb4 axb4 Qc7 Ra4 Qb6 Ra1 Qd8 Ndf3 h6 Nh3 gxf3 g4 h5 g5 Nh6 Nf2 Ng8 Ng4 hxg4 Kf2 Kf8 h4 b1N b5 d5 h5 e5 b6 d3 b7 d2 h6 e3+ Kg3 e2 h7 e1N c3 d4 Ra7 f2 Bh3 f1Q Qe2 d1Q Bg2 d3 Ra1 e4 Bb2 d2 Bf3 e3 Rh6 Qe8 Qb5 e2 Rg6 Qf7 Ra4 Ra5 Ba1 Nf6 Bd5 Nc2 Bf3 e1N Qe2 Nbd7 b8Q Nba3 Qb7 Qb1 Qh2 d1R Bb2 Q1c4 Qb5 Nd3 Qd2 N3e5 Kg2 g3 Qe3 Rd6 Rh6 Rc6 Kh3 g2 Qb7 g1N+ Kg3 Rc7 Bd5 Ne2+ Kh4 Rg8 h8Q Nc1 Kg3 Nh7 Qba7 Ndf6 Rh2 Bg4 Qe1 Bd1 Qaf2 Nfg4 Qf6 Rg6 Qa6 Rgc6 Qaa7 Kg8 Rg2 Ngf6 Rh2 Nb5 Ba3 b2 Bd6 Nba3 Qfc5 Rca6 Re2 Rac6 Qcf2
B2qb3/PP3q1B/3q2q1/1rn3k1/3n1r1Q/pp4q1/P2NBR1b/1nB1K3 b - - 0 1 illegal: Other
1kn1b3/b4qQq/Q2b1r1b/3N3P/r1bP1Q1P/q4N2/R6p/Kn1nR1q1 b - - 0 1 illegal: Other
1N3nn1/1q1Q1b1r/1bP3r1/1Pr2Qk1/1NnK1b2/4P3/3QRRp1/1nrr2q1 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kd3 Ke7 c4 f1N h4 f5 b4 a5 c5 d5 g6 Kf6 e3 a3 b5 f3 h5 g3 h6 f4 g7 g2 c6 f2 h7 a2 Qa4 f3 Qa3 a4 Qb3 a3 Qd1 Qd7 Ne2 Bc5 Qb3 Nd2 Ng3 f1N Rh5 f2 Nf5 Nc4 Ng3 Qb7 Rh2 Nd7 Nd2 Kg5 Qc3 Bb6 Qc2 Nf8 Nh1 Be6 Qc3 Bf7 Nb3 Nfd2 Qc2 f1R Qb1 Rc1 Qb2 Nb1 Nf2 Re8 Qc2 Re6 Rh6 Rg6 Qd2 Rc2 Nc5 Rc1 Ke2 d3+ Kf3 d4 Ke4 Rc2 Nd7 Rc3 Nb8 Rc1 Qe2 d2 Nd3 d1R Nb4 d3 Qd2 Rf1 Rh1 Rf5 Re1 Rd5 Re2 Rc5 Qc3 d2 Kd4 d1R+ Qd2 Nc3 Rb1 a1Q Rb2 a2 Rc2 Qb1 Rb2 a1B Rc2 Nf6 g8Q Bb2 Qg7 Ng8 Rf2 Ba1 Qd3 Bb2 Rce2 Qa1 Qd2 Nb1+ Kd3 Be5 Qf6+ Kh6 Qf5 Bf4 Ke4 Qc3 Qdd7 Qe1 Qd2 Qg1 Kd4 Nf6 Qh3+ Kg5 Qd7 Rhg8 h8Q R8g7 Qh7 Ng8 Qhh3 Rh7 Qhf5+
B2b2r1/Nr5b/k2n1p2/n4P1P/P1nq1bB1/NQ2n3/1Q1p1KNb/3rn3 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 d5 g4 g5 c4 h6 f4 e6 h4 Kd7 h5 Ke7 f5 Ke8 Bf4 dxc4 d5 e5 Rh4 Ra7 Ra3 Ra6 Rd3 Ra8 Rd4 exd4 Rh3 Bd7 Rg3 gxf4 g5 Be6 g6 Bc8 Rg5 hxg5 e4 Kd7 e5 b5 g7 c5 e6+ Kc7 d6+ Kb6 d7 f6 e7 c3 e8Q c2 Qe3 c1B Nd2 f3 Qe7 c4 Qe8 f2+ Ke2 d3+ Kf3 b3 Qee2 b4 Nb1 b2 Qe7 g4+ Kg2 g3 Qe6+ Nc6 Nh3 c3 Qdb3 c2 Qe2 Nh6 g8B Ka6 Qee6 Rh7 Qe4 Na5 Qbd5 b3 Be6 Bf4 Nd2 b1N Qde5 c1N Be2 f1N Q5d4 b2 Qee3 Be7 Ne4 Nf7 Kf3 g2 Kf2 g1B+ Kf3 Bgh2 Qd2 Na3 Q4b4 b1R Qbb2 Nd6 Qb3 N3c4 Qdb2 d2 Bd5 Ne3 Nc3 Nd3 Nb5 Rd1 Na3 Ne1+ Kf2 Qb6 d8N Be6 Bg2 Qd4 Nc6 Rg8 Bg4 Bd8 Na7 Rb7 Bc6 Bf7 Bd5 Bg6 Be4 Be5 Nf4 Bh7 Ng2 Bef4 Bc6 Rb4 Ba8 Rb5 Q2c3 Rb7 Qcb2
1rQq3n/K2P1b2/bR1P1b2/1r2pq2/2PB2RN/p1b2R2/1b3n1k/2qR2b1 b - - 0 1 illegal: Other
r3bq2/QN1Q2pK/Bqr5/1PPr1PBN/q2r4/2p3r1/n2bq3/Bn3k2 b - - 0 1 legal: proof: g4 b5 a4 bxa4 b4 h5 c4 hxg4 h4 c5 e4 f5 b5 fxe4 Rh3 Qc7 Rg3 Qd8 Rb3 d6 Rb4 cxb4 c5 d5 Ra2 Na6 Rc2 Nb8 Rc4 dxc4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 Kg6 a5 f4 e5 d3 a3 f5 g3 h5 a2 h6 a1Q h7 c3 Qg4 b3 Qf4 g2 Qg3 a4 Qe1 a3 Bh6 a2 Nh3 g1R+ Ng5 e3 Qe2 b2 Qd2 e4 Qc2 e2 Na3 Ke3 d4 Kf2 d5 b1R d6 e3 d7 Nc6 Qd2 Bd6 Bg2 Rbd1 Bf1 Nb4 Qc1 e1Q Qd2+ e2 Nc2 Qb6 d8B Nf6 Bc7 Ne4 Qd5 Nd2 Nd4 Nb1 Nb3 Bd7 Na5 Rhc8 h8Q Rd4 Bg2 Be8+ Kh7 Bf4 Ne6 Bd2 Bcf4 Rc6 Qd7 Rd5 Be4 Rg3 Nb7 Kf1 Bfg5 Qd1 Bf3 e1R Nf4 Re4 Nh5 Red4 Qg8 Qb2 Qgf7 a1Q Bh1 Na2 Be4 Be1 Bc1 Bd2 Bg5 Qbc2 Bb2 Qe2 Bf3 Qe7 Be4 Qf8 Qfe7 Nb4 Qf7 Qaa4 Ba1 Rdd6 Qa2 R6d5 Qa3 Na2 Bf3 Qab3 Qa7 Qa4 Bf6 Qe4 Bg5 Rdd6 Na5 Qe2 Bh1 Rcc8 Bb7 R6d5 Ba6 Rc6 Nb7
rn4r1/3q2b1/1prPb1b1/3k1nrp/P2P2q1/Q1B4n/1B2NBB1/R1n4K b - - 0 1 illegal: Other
1q4N1/2N1rqPK/1pb1nN2/QnkQ4/1RP1pRqb/8/n2r1pPb/5q2 b - - 0 1 illegal: Other
q4Q2/1bP1n1N1/p5Q1/b2p4/rr2pR1N/PR2qRPb/2K3k1/qn3rb1 b - - 0 1 legal: proof: d4 e5 f4 exd4 b4 c5 e4 cxb4 g3 h5 e5 f5 e6 h4 e7 h3 Bg2 hxg2 Be3 Kf7 e8R g5 Re4 fxe4 f5 Ke8 Bf4 gxf4 Kd2 Kf7 c4 Kf6 h4 d5 c5 b5 h5 Kg5 h6 b3 f6 b4 a3 d3 c6 f3 h7 Kg4 c7 b2 f7 b3 Qc2 f2 Rh2 f1R Qc3 Bb4 f8Q Na6 Qc5 Bb7 Rh5 Ba5 Ra2 Nb4 Qc2 Ne7 Kc3 d2 Nf3 d1B Rh3 g1B Nbd2 b1Q Ng5 b2 Ne6 Qc1 Ng7 b1Q Nb3 Kf3 Rb2 Qa1 Rh4 Qe3+ Qd3 Be2 Rf4+ Kg2 Nd4 Na2+ Kc2 Bg4 Qa6 Nc3 Rb3 Bh3 Qg6 Nb1 Ndf5 Rf8 h8R Rf6 Qg5 Rb6 Qg6 Rb4 Rg8 a6 Rf8 Ra4 Rf6 Qb8 Qd6 Qba7 Qd8 Rb8 Qf8 Qa8 Rfb6 Qed4 Rbf3 Qe3 Rb4 Bc6 Rb2 Rbb4 Rb3 Bb7 Nh4+
1RR2nQR/1k1N1b1r/1p1b1KP1/1Ppp2n1/Qr6/nn1r4/2P1Nb1b/5q2 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 d5 g5 d6 gxh4 Bf4 exd6 Bh6 d5 Bc1 d4 b4 Nf6 b5 Ng8 Ba3 Nh6 Be7 Ng8 Bb4 axb4 a3 Be7 Bc4 Bf8 Ba2 b3 Ke2 bxa2 Kf1 Ra5 Ke1 Ra8 Kd2 c5 f4 h5 g4 d5 f5 Kd7 a4 Kc7 a5 b6 g5 d3 Ke3 h3 Kf4 h2 Ke5 d2 f6 h4 g6 h3 f7 e3 a6 e2 a7 e1B Qf3 d1N Qa3 Nc6+ Kf4 Be6 Qg3 Nb2 Nd2 Nd4 Ke5 Nf6 Qf3 Kb7 Qh5 Nc4+ Kf4 Rh7 Kg5 Bd6 f8Q Nd7+ Qf6 Nf8 Qg4 Nb3 Qf5 Bf7 Qe5 Bf2 Nb1 Na3 Qd4 Qe8 Nc3 Qe1 Nge2 Qf1 Re1 a1B Qfe5 Rh4 Qa4 Rb4 Ne4 Bc3 Qe6 Bce5 Rg1 h1N Nf6 h2 Nd7 Ng3 Rh1 Ne4+ Kf5 Re8 a8R Ng5 Ra1 Beg3 Kf6 Bgf4 Rc8 B4g3 Qh3 Re3 Qh8 Rd3 Qg8 Bgf4 Rg1 h1R Rg2 B4g3 Rh2 Bgf4 Rh8 Bh2 Rh5 Bhf4 Qa5 Nb1 Rh8 Rh7 Qa3 Bh2 Ra2 Rg4 Qb4 Rgh4 Raa8 Na3 Qa4 Rb4 Rab8+
b1Q2k1N/pP3bN1/r3r3/2npr1b1/nK5R/1nP1Qp1P/2q1n1N1/2R3r1 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 b4 f1R e4 f5 c3 a3 e5 d3 b5 g3 g6 f3 e6 f4 g7 g2 b6 f2 e7 f3 h3 a2 Qe1 Rh6 Rh2 Na6 Qc1 Bb7 Na3 Re6 Nb5 Nh6 g8N Nc5 Na3 Nf5 Nc2 Bh6+ Ne3 Nd4 Rh1 Bg5 Qc2 Ne2 Rb1 a1N Qc1 d6 Qe1 Nab3+ Kd1 d2 Kc2 d1N Nf6+ Kf7 Nh5 Nb2 Ng7 Nba4 Rc1 Qf8 e8Q+ Kg8 Qd7 Rae8 Qc8 Ba8 b7 d5 Qd2 Qf5+ Qd3 Kf8 Rh2 Nf4 Ne2 g1R Rg2 Ra6 Rg4 Re1 Rh4 f1B Ng2 Qg6 Nd4 Ree6 Nc6 Ne2 Nd8 Qh7 Nf7 Re5 Qg4 R8e6 Nh8 Qf5 Kb1 Qh7 Ka2 Qf5 Qd2 Qc2+ Ka3 Ng3 Qe1 Bd3 Qf2 Bg6 Qe3 Bf7 Kb4 Ne2 Qc4 Ne4 Qc7 Nec5 Qc8+
R1b2n2/1r1qNkqr/1nq4P/4PPp1/1pp5/N2p2Kb/1B4Nn/1Qb3N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 c4 d5 a4 dxc4 d5 e6 Ra2 e5 Rd2 f6 Rd4 exd4 e5 f5 Bg2 Kd7 Bf3 Ke8 Be4 fxe4 h4 c5 f4 b5 Kf2 g3+ Kg2 b3 d6 b2 h5 c3 d7+ Kf7 h6 e3 a5 e2 a6 e1N+ Kh3 c2 a7 g2 Bd2 c1Q Qe2 Nf6 Na3 b1B Kh4 Nh7+ Kg4 Bf5+ Kg3 d3 Rh3 Nf3 Nc4 Nh2 Rh4 Bh3 f5 b4 Na3 Be7 Rd4 Nf8 Qf1 Bg5 Bc3 Rh7 Bb2 Qc3 Qb1 Bc1 Rd6 g5 Ra6 Qf6 Re6 Qg7 Ra6 c4 Ra5 Qd4 Ra4 Qe4 Ra5 Qc6 d8N+ Kg8 Ra6 Nbd7 Ne6 Rb8 a8N Kf7 Nac7 Nb6 Nf4 Rb7 Ncd5 Qd7 Ne7 Qc6 Nge2 g1Q+ Ng2 Qd4 Ng1 Qdd7 Ra8
3n2N1/2P1KP2/1p1NnQp1/rrp3bp/q1k1N3/4Q3/bB2r1PB/r1q4n b - - 0 1 illegal: No proof kernel
1nn1nQb1/NK1P1r1r/p4Q2/1n5Q/1R1pR1Pp/bp4q1/rkr1P3/3N4 b - - 0 1 illegal: No proof kernel
BK5b/p1rpr3/8/R1P1pR2/Qn1pb1kQ/bB1n1nq1/1b2PPn1/4Q3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bg5 f5 Bh4 f4 Nd2 g5 Ndf3 Nh6 Bg3 fxg3 h4 Ng8 h5 Qb6 Bh3 Qc7 Bf1 Qd8 Nh4 h6 Ngf3 gxh4 g5 Nf6 g6 Ng8 Ng5 hxg5 Kd2 a3 Kd3 a2 Kc4 g2 Kd5 g1N b4 h3 c4 h2 b5 g4 b6 g3 h6 g2 b7 Qc7 g7 Kf7 h7 Kg6 Qd2 Kh5 Qe3 Nf3 Qa3 Na6 b8Q Nb4+ Ke4 Bb7+ Kf5 Nf6 g8B Ne4 Qc8 Nc5 Qd8 Rc8 Qc3 Qg3 Qe3 Ncd3 Qf4 Rc7 Rg1 h1N Qc1 e6+ Kf6 Be4 Qe1 Kg4 Kf7 Bg7 Ke7 e5 Bf7 Re8+ Kd6 Re7 c5 Bf6 Bb3 Bh8 Rc1 a1B Qg8+ Ng5 Qc4 Bb2 Ra1 Nf3 Qc2 Qh4 Ra5 Ng3 Rh1 g1B Bg2 Nf1 Rh2 Qg3 Rh5 Ne3 Rf5 Bh2 Qcd1 Bf6 h8Q Bg7 Bh1 Ng2 Qh6 Bh8 Qa1 Qh3 Qa4 Bf4 Qf6 Qg3 Qh6 Rb7 Qh2 Bfc1 Qh7 Rb8 Kc7 Rb7+ Kc8 Rc7+ Kb8 Ba3 Qg8+ Ng5 Qg7 Bf3 Bc4 Nh4 Be6 Bcb2 Qh6 Bb7 Be4 Ngf3 Bb3 Ng2 Qh7 Ba6 Ba8 Bb7 Qh2 Be4 Qh4+
R1knB3/2nn2pR/Rr3rB1/1n5P/2n2P1n/1Kb3b1/R2PnNb1/7b b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 e5 c4 d5 f5 dxc4 Qg4 f6 Qf4 exf4 g3 h6 e5 f3 e6 Nc6 Bb2 Nb8 Nc3 Qd6 Ne4 Qf4 Ng5 hxg5 gxf4 g4 Be5 fxe5 O-O-O Kd8 Kb2 b5 h4 c5 a4 c3+ Kb3 g3 f6 f2 h5 e4 f7 e3 a5 g2 a6 e2 a7 e1B Rc1 c2 Ra1 c1N+ Kb2 c4 Be2 f1B Kc2 b3+ Kc3 b4+ Kb2 c3+ Kb1 b2 Kc2 b1N Rh2 b3+ Kd1 b2 Kc2 Nd3 Ra2 Ne5 Kb3 c2 Rh1 c1N+ Kc2 Na6 Rh3 Ne7 Bf3 Rb8 a8B Bg3 Bfd5 Bb7 Ra4 Rh6 Ne2 g1N Ra1 Nd7 Rh1 Nc6 e7+ Kc8 e8R+ Nd8 Bg2 Rf6 Ra2 Nc7 Nc3 Bb4 f8R Nce2 Bc6 Bg2 Nd1 Na3+ Kb3 b1N Rh8 Nab5 Rh7 N1a3 Nf2 Nf3 Rha1 Nh4 Be4 Bh1 Bg6 Bbg2 Bc6 Nc4 Ra6 Bc3 R1a2 Rb6 Rf8 Nb8 Bce8 Rf5 Rf6 Nd7 Rd6 Rf6 Ra7 Rb8 Rda6 Rbb6 Ra8+
3K4/nqr1Q2b/P3p2P/P4q2/B2N4/n1r3NN/1npq1r1q/1NBk1b2 b - - 0 1 legal: proof: g4 h5 e4 hxg4 h4 f5 c4 fxe4 b4 d5 a4 dxc4 Rh3 e6 Rf3 a6 Rf5 Bd6 Rb5 axb5 a5 Bc5 Ra3 Bb6 Ra4 bxa4 a6 Ba5 bxa5 a3 Qf3 a2 Qe2 Rh6 Qd1 Rh8 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 a1Q+ d4 b5 f4 c5 f5 g5 f6 b4 f7 b3 f8N b2 d5 e3 d6 c3 d7 e2 Kd6 e1N Na3 b1B Qe2 c2 Qe5 g3 Bb5 Kg4 h5 g2 h6 c4 Be3 c1R Qf6 c3 Qf7 Nd3 Nc4 Rh7 Qf2 Nf6 Nb2 Nd5 Nf3 g1Q Ba7 Nc7 Bd4 Bb7 Qc2 Qg2 Bb6 Nc6 Ng6 Na7 Na4 Nb2 Bf1 Ncb5+ Kc5 Na3 Kd6 Qf6 Kc7 Qa2 Bb5 Rf8 Qd3 Qf5 Qd6 Qd2 Bc5 Qb3 Nfh4 Bg2 Qh2 Bf1 Qd6 Rf6 Bc6 Qb7+ Kd8 Bbd3 Nf4 Kg3 Qe7 g4 Bd6 Kf2 Bb8 Ke1 Nh3 g3 Bf4 g2 Bb5 g1Q Bg5 c2 Nc3 Rd1 Nb1 Qgh2 Ba4 Ke2 Be3 Re1 Bg5 Kd1 Bf4 Re3 Bg5 Qff3 Nf5 Be4 Ng3 Rc3 Be3 Qf5 Bf4 Qd6 Bc1 Qdd2 Ke8 Bed3 d8N Rff7 Nc6 Rhg7 Nh1 Rg2 Kd8 Rf2 Ng3 Rg7 Qf8 Rc7 Qf7 Qf3 Qd7 Bh7 Nd4 Qf5 Qe7
3r1qNr/br1q2kn/1P4qr/B2Pp2B/1np3RN/P6N/N1p1Kb2/8 b - - 0 1 legal: proof: e4 e5 f4 d5 c4 a5 b4 g5 h4 gxh4 f5 b5 d3 d4 Na3 bxc4 Be3 a4 Qb3 axb3 Rb1 b2 Rc1 f6 Rc3 dxc3 Bg5 Be6 fxe6 f5 Be3 fxe4 g4 b1Q+ Bc1 c5 g5 h5 d4 c2 d5 c3 e7 Kf7 e8N h3 b5 e3 Nd6+ Kg7 g6 h2 Nf3 e2 Ng5 h4 Nc8 c4 Nh3 Nc6 Nf4 h3 Ng2 Nb4 Ne7 Nf6 Kf2 e1B+ Ke2 Bf2 Nh4 Nh7 Bd2 c1R Rg1 h1Q Rg4 h2 Nc2 Qd7 a3 Rd8 Bg2 Qg1 Bf3 h1R Be1 Ba7 b6 Qc5 Bd2 Rcd1 Be1 Rd4 Bd2 Rf4 Be1 Rf7 Bd2 Nc6 Nb4 c2 Bc3 Qbg1 Na2 Qg3 Ba5 Nb4 Ng2 Qcc8 Nf4 Rh6 Nh3 Qc5 Re4 Qg5 Bh5 Qcc8 Rg4 Qa8 Nc8 Bc5 Nd6 Bf2 Nf5+ Kf8 Nh4 Kg7 Rg3 Qac8 Rg1 Qc5 Rg4 Qf8 Kf1 Qc8 Ke2 Rb7 Nc1 Qd7 Na2 Kf6 g7 Qg6 g8N+ Kf7 Ne7 Kg7 Ng8
3b1NN1/1rq4P/2R1nnrn/RP2q3/1b1n4/3P1RBR/2k3q1/K1n1bbq1 b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 c5 bxa4 c6 g5 Nf3 dxc6 Ng1 c5 Ra3 c4 Ra2 Qe7 Ra1 Qd8 g3 h5 Qb3 g4 Qf3 Bg7 Bh3 gxf3 g4 Bh6 g5 Bf8 Bg4 hxg4 Kd1 Kd7 Kc2 Ke6 e4 Ke5 h4 Kd4 b4 a5 Kb2 Kd3 e5 c5 e6 f5 g6 f2 b5 f1Q h5 f3 g7 f4 e7 c3+ Ka2 c2 e8R a3 h6 c4 h7 a4 Rh6 g3 Rh2 c3 Rh6 g2 Re1 f2 Rh1 f3 Re8 Na6 Rh6 Rb8 Rhe6 Qc7 Rh6 Rb7 Rh2 Nc5 Rh5 Nh6 g8R Qe1 Rh2 f1Q Re5 f2 Nf3 g1Q Bb2 c1B Rg4 c2 Rf5 Qee5 Rh1 Qfg2 Ng5 f1N Rf7 Nh2 Rg7 Ne6 Nh3 Bb4 Rc4 N2g4 Rf4 Nf6 Rc4 Rg8 Re7 Rg6 Rf7 Bd7 Bc3 Bb2 Bd4 B2c3 Bf2 Bc6 Ng5 Bf3 Rc5 Be2 Rc6 Bf1 Rb6 c1B Rc6 Kc2 d3 Bf4 Nf3 Bg5 Rh3 Bh4 Bg3 Bg5 Rd6 Be1 Nc3 Bh4 Rd1 Bg5 Ka1 a2 Ra6 Ne8 Ra7 Bd8 Nh4 Nf6 Rc1+ Kd2 Kb2 a1N Ra5 a3+ Ka2 Nc2 Nd5 Ncd4 Rc6 Kd1+ Ka1 a2 Ne7 Kd2 Rf8 Kd1 Ng8 Kd2 Kb2 a1N Kb1 Nab3 Kb2 Nh5 Rf3 Nc1 Kb1 Nf6 Ka1 Rg5 Ng6 Kd1 Rb6 Kc2 Nf8 Rg6 Rc6+
2n2r1n/3qq1np/1q6/bP2rq1Q/2P3B1/q2k2B1/P1br4/BR1BrR1K b - - 0 1 legal: proof: d4 b5 h4 g5 e4 gxh4 c4 a5 b3 f5 d5 fxe4 d6 b4 Nh3 a4 Nc3 bxc3 Nf4 a3 Nd3 cxd6 Bb2 d5 Bc1 d4 Nb2 axb2 f4 Kf7 Kf2 Kg6 Kg1 Kf5 b4 b1Q g3 d5 b5 e5 Ba3 c2 Qd3 c1Q Kg2 h3+ Kh2 Nd7 Bd6 Nb6 Rg1 Nh6 Bb4 Nf7 Qe3 d3 Rh1 d2 Ba3 d1Q Be2 d4 Bc5 d3 Bb4 d2 Qd4 e3 Ba3 e4 Qb2 Bb4 Bd3 e2 Rf1 e1Q Rg1 Re8 Be2 e3 g4+ Ke4 f5 Ba5 g5 Re5 g6 Nh8 f6 Bf5 g7 Nc8 g8B Qb6 Bf3+ Kd3 f7 e2 Kh1 h2 Kg2 h1N f8B Ng3 Bg7 Nh5 Be6 Qc3 Bf6 Ng7 Bd6 Qa3 Rf1 Qh4 Qb4 e1R Qc5 Bg6 Beg4 Qbc2 Bd8 Qe7 Kh1 Be4 Rb1 Rb8 Bd7 Bf5 Bh5 Qg4 Be6 d1R Qd5+ Qgd4 Bg4 Rd2 Bd1 Bg6 Beg4 Ra8 Qf7 Rb8 B6c7 Qdd7 Bd6 Na7 B8c7 Rf8 Bc5 Nc8 Bd4 Qac5 Qd5 Qa4 Qf7 Qaa3 Ba1 Bf5 Qh5 Bg6 Bd8 Qf2 Bc7 Qff5 Bd6 Qff2 Bc5 Ke4 Rb2 Qff6 Bf2 Qf4 Bh4 Kd4 Bde2 Bc2 Bd1 Kd3 Rb1 Qff5 Bg3
5qqR/P1qN3n/r7/1P1Nrn2/n2n1q1b/3KR2p/2R1QkPb/3n1bR1 b - - 0 1 illegal: No possible last move
3Kb1rn/Nq4n1/3b1RP1/1rqP1R1r/1q4Pk/3p1N2/nn2NN2/2q1B1b1 b - - 0 1 illegal: Other
n2k1rnq/1R2P1q1/5R1n/7p/rP4r1/nKbbr1NQ/R1RPN3/2b1b3 b - - 0 1 legal: proof: c4 e5 a4 b5 f4 bxa4 g4 exf4 c5 h5 b3 h4 c6 dxc6 Qc2 c5 Qd1 c4 Ba3 g6 Bc5 Qd3 Bf2 Qd7 Bg3 hxg3 h4 Qd8 g5 Nd7 h5 Rh6 Bh3 Nb8 Bg4 Rh7 h6 Rh8 Bh5 gxh5 e4 a5 e5 f5 e6 c5 g6 f3 h7 f2+ Ke2 f1N g7 c3 b4 a3 Rh2 c4 Ke1 c2 Nc3 c1Q Nh3 a4 Rg2 f4 Nb5 f3 Nd4 f2+ Ke2 a2 Qb3 c3 Kd3 c2 Kc4 a3 Nf4 Qb2 Rd1 c1B Rh2 a1B Qe3 g2 Qe1 g1R Nf5 a2 Qe2 Be7 Qe3 Ng3 Nd3 f1R Qb6 Na6 Nh6 Rf3 Qd4 Bh4 Qd6 Re3 Nf5 Nc7 Nf4 Ra4 Rf2 Na8 Ne2 Qe5 Rf4 Bc3 Kb3 Ba6 Qd3 Qd7 Rc4 Kd8 Rf1 Qb8 Rc7 Rg2 Rb7 Rg1 Qe4 Bd3 Qg2 Qdc7 Qh3 Qf7 Nfd4 Nf5 Ng3 Nfh6 Rf6 Qe5 Nde2 Qd7 Ne4 Be1 N4g3 Qed4 Nh1 Rg4 Nhg3 Ne7 g8R+ Qe8 Rgg6 Rf8 h8R Neg8 Rgg7 Qed7 Rg5 Qg7 Rh7 Qh8 Rhc7 Qd7 Ra5 Qdg7 Nf4 Ba3 Nfe2 a1N+ Ka2 Nc2 Kb3 Bc1 Rc4 Ra1 Ra2 Na3 Rff7 Bd4 Rcc2 Bc3 Rf6 Nb1 Rab2 Ra4 Ra2 Na3 e7+
qk4bn/1r2Bp2/rb1R3n/5PNq/7P/rp1qR2R/1K3n1P/N3b1Rn b - - 0 1 illegal: Other
q2b3R/1kq1P2q/2r1q3/n5n1/P2K2bp/4BR1P/q1Rb2pQ/2RBb2r b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 f5 b4 a6 b5 axb5 g5 bxc4 Nd2 c3 f4 g6 Nh3 Ra5 Nf2 Ra3 Ng4 Ra8 Nc4 Bd6 Nce3 fxg4 f5 Be7 f6 Bf8 Nf5 gxf5 Kf2 h5 a4 b5 e4 d5 e5 Kd7 f7 Kc6 e6 d3 Ke3 g3 g6 d4+ Kf3 d2 g7 g2 Ra3 c2 Kf2 d3 Ke3 f4+ Ke4 b4 Ra2 b3 Be2 b2 Qe1 d1Q Ke5 b1Q Qg1 f3 Qf2 d2 Rf1 Nh6 g8R Bb4 f8R Kb7 Rg1 c5 Ke4 c4 Rg5 c3 Rd5 Ra6 Re5 Rc6 Rf6 Nf7 Qh4 f2 Bg4 f1Q Qg3 Qde2+ Qe3 d1Q Rc5 Qde1 Rh6 Ng5+ Ke5 Qff3 Ba3 c1B Ra5 c2 Rc5 Bcd2 Ra1 c1B Rc2 Qc7+ Kd4 Q2f2 Rc3 Qbh7 Rc2 Be7 Bd6 Bd8 e7 Qee2 Be5 Be1 Bf4 Bcd2 Rf1 Qa6 Rd1 Q3e2 Ra1 Qa8 Rac1 Qea6 Be2 Bg4 Bd1 Qfe2 Qg3 Qe6 Be3 Qa2 Rf7 Qe2 Bf2 Qee6 Qd6 h4 h3 Rf8 Rf3 Rf7 Rd3 Rf3 Bg1 Rf1 Be3 Rh1 Qg3 Ra6 Qh2 Nc6+ Kc5 Na5+ Kd4 Rc6 Rdc3 Qhg6 Rh8 Qgg8 Bf2 Qgf7 Rf3 Qh7 Be3
R5n1/1RP1pqbR/k3N2q/Nqb1b1B1/1q2P2n/q1rr4/1p3P2/Rb4K1 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 c5 g4 cxd4 g5 f5 g6 f4 Nc3 f3 Bg2 fxg2 Qd3 hxg6 Qh3 g5 Nb1 g4 Qa3 bxa3 c4 g5 h4 d5 e3 Kd7 c5 Kc7 a5 b5 c6 b4 a6 Kb6 h5 a2 a7 d3 h6 g3 c7 b3 h7 g4 Bb2 d4 Rh4 d2+ Ke2 Qd7 Bc1 b2 Nf3 g1Q Rh5 g2 Rh2 g3 Ne5 d3+ Kf3 d1Q+ Kf4 d2 Nc3 Bg7 Nb5 Qde1 Kf3 d1Q+ Ke4 Nc6 Nc4+ Ka6 Kf4 Qf3+ Kg5 Ne5 Kh4 Qh1 Nd2 g1B Nb1 g2 N5c3 Ng6+ Kg5 Nh4 Na3 Qf7 Ne4 Qb4 Rh3 Bh2 Bd2 g1B Nc4 Bd6 Na5 Bgh2 Rg3 Qdb5+ Nc5+ Kb6 Rg4 Bf5 Ne6 Rd8 a8R Bhe5 Rd4 Bd3 Kg4 Bb1 e4 Bc5 Bg5 Rd5 Rc4 Rd3 Rd4 Rc3 Rd3 Qc1 Kh3 Qcf4 Re3 Q4f6 Rg3 Qh6 Kh2 Rd3 Kg1 Rc3 Rb8+ Ka6 Rg2 Nf6 Rg4 Rd8 h8R Ng8 Rb7 Rdd3 Rh7 Bc2 Rd1 a1Q Rg3 Qa2 Ra1 Qaa3 Rf3 Bb1 Rf5 Qfe8 Rf8 Qf7 Ra8+
k4bq1/2R1n3/Kbbqnn2/3n2b1/4q1Rr/1pB2PNr/3PpRRP/6N1 b - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 c5 axb4 c6 g5 Nc3 g4 Nb1 dxc6 Bd3 c5 Bf1 c4 Qf3 g3 Kd1 Nc6 Qe2 Nb8 f3 Ra5 Qe3 Ra8 Qf2 gxf2 g4 h5 g5 Ra6 Bh3 Ra8 Bg4 hxg4 Ke2 Kd7 a4 Kc6 g6 f1N g7 e5 a5 b5 a6 g3 a7 Kb7 Ra4 c5 Ba3 b3 Bb4 c3 Ra6 g2 Rc6 e3 Na3 b2 Rg6 b1Q Rc6 e4 Rh6 c2 Re6 c1Q Rg6 c4 Rg4 c3 Bd6 c2 Bc5 b4 Nh3 g1B Nc4 b3 Ba3 Rh4 Bc5 Qd6 Ba3 Nc6 Bc5 Nf6 g8R Bd7 Nb6 Ne7 R4g6 Bc6 Nd5 Rc8 Nb4 Ka8 Bd4 Qcb2 Na2 c1N+ Kd1 Nd3+ Ke2 Nc5 Nc3 Ne6 Rg4 Qba3 R8g5 Qac5 Rg2 Qcd5 R5g4 Qg5 Rf2 Qg8 Rfg2 Bf2 Ng1 Rb8 Be5 Rb4 Bd4 Rh3 Be5 Bh4 Bd4 Bg5 Rf2 Kb7 a8R Qc2 Ra5 Kb8 Rb5+ Ka8 Rb7 Ra4 Rc7 Rc4 Ke1 e2 Rfg2 Qb1+ Kf2 e1B+ Ke2 e3 Ne4 Rb4 Bc3 Bf2 Ng3 Rc4 Bd4 Qe1+ Kd3 Ra4 Kc3 e2 Be5 Ne3 Bd4 Qa1+ Kd3 N3d5 Bc3 Bb6 Rf2 Nb4+ Kc4 Qb1 Rg2 Bd5+ Kb5 Qe4 Rf2 Bb7 Rg2 Nbd5 Rf2 Rd4 Rg2 Bc6+ Ka6 Rh8 Nh3 Rb4 Rf1 Rh7 Ng1 Rh3 Rff2 Qb1 Re4 Qc2 Re5 Rbh4 Re4 Qb1 Rf4 Qe4 Rg4
1r4n1/1q3b1P/pn1B4/1R2Pk2/1nqBB2K/bq1r4/PqbNp3/1B1R3b b - - 0 1 legal: proof: d4 b5 g4 g5 f4 gxf4 c4 bxc4 e4 h5 g5 f5 Nc3 e5 Qg4 exd4 e5 hxg4 Ne4 fxe4 Kf2 Kf7 b4 Ke6 h4 d5 g6 c5 g7 d3 h5 d4 h6 f3 Kg3 d2 b5 d1B b6 e3 b7 e2 h7 f2 Bh3 f1B Bg5 c3 Bg2 c2 Bd5+ Kf5 Bf4 c1N Bh6 d3 Rh4 c4 Rh3 c3 Rh4 a6 Bc6 c2 Rh2 d2 Rh3 Be6 Bg5 Bg2 Rh5 Nd7 b8B Qb6 Rh1 Nd3 Kh4 c1Q Bd6 g3 Bf6 Qbb2 Bc5 Rd8 Bf2 Bc2 Bb5 d1Q Ba7 Bf7 Be7 Nb4 Bd6 Nb6 Rb1 Qd3 Bc4 Qdb3 Nf3 Rd7 Rd1 Bh1 Nd2 g2 Bd5 g1Q Bb7 Qg2 Bd5 Nc4 Bd4 Nb6 Bc4 Qb7 Bb5 Bce4 Bd3 Qcc4 Bc2 Nf6 Bd3 Be7 Bc2 Rb8 g8B Rdd8 Rbc1 Bd3 Bb1 Bde4 Rc3 Bc2 Rg3 Bg6 Bd5 Bf7 Bc7 Bc5 Bd6 Ng8 Rg6 Nc6 Re6 Ba3 Re7 Nb4 Rc7 Re8 Rc5 Re6 Bg2 Rg6 Ra5 Rg3 Rb5 Rd3 Be4+
3Nq1bb/BR2R3/2P4R/2PnpKnr/2pr2P1/1rqR1pq1/6q1/1n1Bk3 b - - 0 1 illegal: Other
1bK1b2n/2n1QP1P/n2q1N1p/1b1knBq1/1rr4Q/4nNq1/3P1N2/7Q b - - 0 1 legal: proof: c4 d5 a4 dxc4 e4 f5 b4 fxe4 b5 a5 Ra2 h5 Rb2 b6 Rb4 axb4 a5 Qd3 axb6 Qd8 g4 Nc6 h4 Be6 g5 Bg4 g6 Bh3 Bb2 Qc8 Be5 Qd7 Bf4 Na7 Bh6 Nc6 Rh2 Qd3 Rg2 Bc8 Rg4 hxg4 h5 Qd4 Bf4 Qd6 h6 Qd8 h7 Nb8 Bh6 gxh6 Ke2 Kd7 Ke3 Kd6 Kf4 c5 g7 e5+ Ke3 g3 f4 c3 f5 c2 f6 c1N b7 g2 f7 b3 b6 b2 Ba6 c4 Qb3 c3 Qd1 c2 Qg4 Nb3 Qd1 c1N Qc2 Nc5 Bd3 Nba6 b8Q+ Nc7 b7 Kd5 Na3 b1B Qa7 Ne7 b8Q N5a6 g8N Bd7 Ne2 Ng6 Nc4 Bd6 Qbb6 Be8 Qbb2 Rc8 Kf2 e3+ Kg3 g1Q+ Kf3 Qgg5 Nd4 e2 Nb5 e1Q Bf5 Nd3 Qb4 Qeg3+ Ke2 e4 Nd4 e3 Ne5 Qdf6 Ng4 Nde5 Nf3 Qe7 Qc1 Bd3+ Kd1 Bf1 Kc2 e2 Kb3 e1N Nf2 Nc2 Qh4 Bfb5 Qch1 Ne3 Kc3 Ne6+ Kb3 Bb8 Qc7 Qef6 Qe7 Nec7 Ka3 Qd6+ Kb3 Nc5+ Kb4 N5a6+ Ka5 Na8 Qa1 Rc4 Qah1 N8c7 Nf6+ Kc5 Qb1 Rb4 Bh3 Rg8 Qf8 Nh8 Bf5 Qh5 Qbh1 Rgg4 Qe7 Qg5 Qd1 Kc4 Qdh1 Qd8 Kb6 Qd6+ Kb7 Rd4 N6g4 Kd5 Kc8 Rdc4 Nf6+
1Q2b3/P2B1Q2/1b1K4/1R2nr1q/4bQ1n/2Bprrq1/pP2B1pP/4bk2 b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 c5 d4 cxd4 g4 h5 Ra3 hxg4 Be3 b5 Rd3 b4 Na3 bxa3 Bc1 Rh5 Rb3 Rh8 Rb4 axb4 Ne2 b3 Nc3 Qb6 Na2 bxa2 Bc4 Qc7 Bf1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 a1R Kd5 g5 c4 e5 f4 g3 a5 g2 c5 g1Q a6 g4 c6 d3 c7 e4 a7 e3 Bh3 g3 Qh5 d2 Qf3 d1B Qg4 a2 Qf3 e2 Qe4 e1B Qb4 Ba4 Bg2 Nh6 Qc4 Qe8 Qa6+ Nc6 Be4 Bc5 Bc2 Bb6 Qb5 Ne5 Qc4 Rf8 Bd1 Qh5 Qa6 Bb7+ Kd6 Rae8 c8B Be4 Qc4 g2 Qd4 Qe3 Rf1 Qg3 Bd2 Rc1 Rf3 Rc5 Rb3 Rc3 Qc4 Rf3 Bc3 Rd8 Qb5 Ba5 Kc5 d5 Rb4 d4 Qb8 Be8 Rb5 Rd6 Bd7 Ra6 Bd2 Bb6+ Kd6 Raa3 Ba5 Rf1 Bd2 Re3 Bb4 d3 Bc3 Kg7 f6+ Kg6 f5+ Kg5 f7 Kf4 f6 Nf5+ Ke6 Nh4 Kd6 Rg8 f8Q Rg5 f7 Rf2 Bb3 Kf3 Ba4 Ke2 Bd1+ Kf1 Qg7 Qgg4 f8Q Qg3 Qf4 Rff3 Qgf7 Rf5 Be2+
q7/Bp1Q1k2/PBqP3r/n3q2N/2b1pnK1/3qrQb1/nPpn3Q/5B2 b - - 0 1 illegal: No proof kernel
Q3BQ1b/1KP2Pqn/3bqP2/6pb/qnkN4/4pQ2/r1r1Q2n/3b3R b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 c5 e4 cxd4 Ra2 f5 exf5 g5 Ra3 bxa3 f4 h6 g4 Rh7 f6 Nc6 f5 Rh8 Bf4 Nb8 Nd2 Rh7 Ndf3 gxf4 g5 Rh8 g6 Rh7 Ng5 hxg5 Bc4 Rh6 Bf1 Rh8 Ke2 e5 Kf3 b5 Ke4 d5+ Kf3 Kd7 c4 Kc6 h4 Kc5 h5 a2 g7 a1B h6 d3 f7 b4 h7 b3 a5 d4 Ke4 f3 a6 b2 a7 b1Q Qc1 d2+ Qc2 d1B Be2 f2 Rh4 f1N Bh5 d3 Bf3 d2 Bg2 Qbb6 Nh3 Bd6 Ng1 Qd7 Rh1 Nc6 Nf3 Nb4 Nd4 Nh2 Qd3 Qe6 Qe2 Qc7 Bf3 Bd7 Bh5 Be8 Bg6 Rc8 a8Q Qcd7 Qa3 Qde7 Qaf3 Nf6+ Ke3 e4 g8Q Ra8 Qf8 Ra2 Nc6 Bd7 Qg7 Qf8 Bh5 Bc2 Bg6 Rg8 h8Q d1Q Bh7 Bae5 Nd4 Bb1 Bg6 Nh7 Qh6 Kb6 c5+ Ka5 Q6g7 Ba4 c6 Kb6 Qh6 Kc5 Q6g7 Bd3 Qh6 Bg7 f6 Qdb3 Nc2 Kb5 Kd4 e3 Be4 Qa3 Bd5 Bb3 Be4 Qa4 Bd5 Qfa8 Be4 Rc8 Qd8 Bh8 Bf5 Qe7 Bd7 Qe6 Qg7 Rc7 Qe8 Qd8 Qgg8 Qde7 Qa8 Qf8 Be8 Qh6 Qf8 Qg7 Na1 Bd1 Nc2 Ra7 Bd7 Ra6 c7+ Rc6 Be8 Kb6 Qg3 Bg6 Qgg4 Bh5 Qgf3 Qc8 Ke4 Qh3 Nd4 Rcc2 Qb8+ Kc5 Qb7 Nd3 Qa8 Kb4 Kd5 Kc3 Bb5 Qe6+ Kc6 Nb4+ Kb6 Rcb2 Be8 Rc2 Qeg2 Kd3 Kb7 Kc4 Qge2+
r3B2B/3n3p/1r4NP/2p3kB/r3P2p/n3PKB1/1p2Q2b/B1n2n1n b - - 0 1 legal: proof: c4 d5 b4 dxc4 d4 g5 a4 a5 h4 b5 g4 Bb7 f3 Be4 fxe4 Qd6 Nc3 e5 h5 Qd5 Nxd5 bxa4 b5 a3 Nb4 axb4 d5 a2 Rh4 gxh4 Rb1 Nd7 Rb2 Nb8 Rd2 Bd6 Rd3 Bf8 Rd4 exd4 Kf2 Ke7 b6 Kf6 e3 a1N b7 c5 h6 d3 d6 b3 d7 d2 d8B+ Ne7 Bh3 c3 Qc2 d1R Ba5 Nf5 Bb4 Rd6 Qd2 c2 Qe2 Ng3 Nf3 Nd7 b8B Ra4 Ne5 Rb6 Bb2 c1N B4c3 Bd6 Kf3 Nh1 Ng6+ Kg5 Bc7 Rha8 Bh8 Bh2 Bg3 Nc2 Ba1 f5 Bg2 b2 Bf1 f4 Bh3 Rg8 Bf1 Rg7 Bh3 Kf6 g5+ Kf7 Kg4 Rg8 Bf2 f3 Bg3 Nf6+ Kf4 Rgb8 Bg4 Nd7 Bh5 Na3 Kg4 Rba8 Kf4 f2 Kf3 f1N Nf8+ Ke7 g6 Rc4 g7 Kf6 g8B+ Kg5 Ng6 Rcb4 Bf7 Rba4 Be8
b1kb4/2n1n1rN/2PnNp1K/4rNp1/BbbPR1N1/8/q4rP1/N1bq4 b - - 0 1 illegal: No proof kernel
B1r1B3/B2p1n1K/1P1r3b/B1rP4/n1pPk1Br/6n1/1q1b2n1/1N1nR2b b - - 0 1 illegal: Other
q1Q2Q1R/1r4B1/1qq2P2/1n1R1qk1/3P1Q1r/n5Pp/1K3nq1/2Qr1n2 b - - 0 1 legal: proof: e4 d5 b4 a5 e5 axb4 Bc4 dxc4 d3 Bf5 d4 Bd3 e6 fxe6 cxd3 e5 Be3 e4 Bh6 Kf7 Bc1 Ke8 g3 h5 Nc3 h4 Nd5 h3 Ne3 Qd5 Qe2 Qd6 Qd1 Qd8 Ng2 hxg2 h4 g5 h5 Qd6 Nf3 Qd8 Nh4 gxh4 Kd2 Kf7 Kc2 Kf6 f4 g1Q a4 e5 a5 c5 a6 b5 f5 h3 h6 e3 d5 c3 d6 c4 d7 e4 h7 b3+ Kb1 b2 d4 c2+ Ka2 b1N a7 b4 Qf3 e2 Qf2 e1R Qe3 b3+ Kb2 Nc6 Ra4 c3+ Ka1 b2+ Ka2 Qg2 Rh2 Bd6 Ra6 Na3 Qd3 b1N Ra4 e3 Qc4 e2 Rh1 Rb8 a8Q Rd1 Rh2 e1Q Bb2 c1Q Rh1 c2 Qd3 Kg5 f6 Qef2 Qd2+ Bf4 Rf1 Na7 Qc6 Qb6 d8Q Nh6 Qdc8 N7b5 Ra8 Rb7 Bc3 Qff3 Bb4 Ng4 Bf8 Nf2 Bg7 Qe4 Kb3 Qg6 Re1 Qf5 Re5 Qb2+ Ka4 c1Q Rd5 Qa1 Kb3 Qcc5 Q6c7 Qcd6 Qcc1 Qdc6 Rb8 Qac3+ Ka2 Qca5 Kb2 Qa8 Qf8 Nc2 Re8 Ne3 Rb8 Nf1 Qc8 Re8 h8Q Re4 Qhf8 N1a3 Qfc5 Kg4 Qd7 Be3 Rh8 Kg5 Qf8 Rh4 Qdc8 Bf4 Qxf4+
2K1b1rQ/p3Qq1p/5rB1/1RPr1pr1/2qbP1Q1/k5P1/bR4Q1/1n1r4 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 e5 a5 d3 a6 Nc6 Ra3 Nce7 Be3 Nf5 Ra2 Ng3 Bd4 exd4 Ra4 bxa6 Ra1 a5 Bh3 Nh5 Kf1 d2 Kg2 a4 Kf3 Qb6 Bf1 Qd8 Kg2 Ng3 hxg3 f5 Kf3 g6 Nc3 Qh4 e4 Qd8 Nd5 Bb4 Ke2 Bf8 Ne3 f4 Nf3 fxe3 Nh4 Ke7 f4 Kf7 f5 Ke7 f6+ Ke8 Nf5 gxf5 Kf3 d5 Kf4 Kd7 Ke5 Kc6 b4 a3 c4 a2 g5 e2 c5 Kb5 g6 d3 g7 e1Q f7 d4 Be2 Bd7 Bf1 Qe8+ Kd5 Qe2 Rc1 a1R Rh3 Ra6 Qb3 d1R Qc4+ Ka4 b5+ Ka3 b6 d2 b7 d3 b8Q Rf6 Qd8 Ne7+ Ke5 Rg8 Rh2 Nd5+ Qe7 Nc3 Rb1 Rd8 Rb7 Nb1 Rb5 Be6 Qd4 Ba2 Qf2 Rdd6 Bh3 Rh1 Bg4 d1R Bf3 d2 Bh5 Qc4 Bg6 Rd7 Rg2 Rh5 Rh2 Rg5 Qg2 Rh8 g8Q Bg7 f8Q Qef7 Qa8 Rd3 Qgc8 Rg8 Qce6 Rb3 Kd6 Rd3+ Kc7 Rd5 Qb8 Re1 Qe5 d1B Qf4 Ba4 Qg4 Red1 Qf8 Bh8 Kc8 Bg7 Rb2 Be8 Rb5 Bh8 Qg7 Re6 Qgf8 Bd4 Qg7 Rf6 Qh8 Rg1 Qf1 Rh1 Rhb2 Rg1 Qfe2 Rd1 Qg2
3rN2r/3qpp2/n5n1/nPn1QQ2/B4p1p/K1N1PN2/1NP2r1k/1r5b b - - 0 1 legal: proof: b4 b5 g4 c5 d4 cxd4 f4 Qb6 a4 Qd8 g5 Ba6 g6 Bc8 Ra3 bxa4 Re3 Nf6 Re6 Ng8 Rf6 gxf6 Ba3 Bg7 Bc1 Bh6 h4 Qb6 g7 Bg5 fxg5 Qd8 g6 h6 Bg5 hxg5 h5 Na6 Rh2 Nb8 Rh4 gxh4 Kd2 a5 Kc1 d5 Kb2 Kd7 h6 Ke6 h7 Ke5 b5 Kf4 e3+ Kg3 Nd2 f5 Bg2 d3 Qf3+ Kh2 Qd1 f4 Qf1 d4 Bb7 a3+ Kb3 a2 Be4 a1N+ Ka2 a4 Ne2 a3 Nb3 d2 Nbc1 d1R Bf3 d3 Bg2 d2 Nc3 Na6 Nd3 Bb7 Nb2 Rb1 Qd3 d1R Qf5 Qd7 Bd5 Nh6 g8Q Rf1 g7 Rd8 Bb3 Ng4 Ba4 Bh1 Qf8 Nb3 g8N Ne5 Qg7 Na5 Nf6 Rf3 Ne8 Ng6 Qgf6 Rf2 Q6e5 Nc6 Kb3 a2 Ka3 a1N Qg5 Rg8 h8N Na5 Qh5 N1b3 Qhf5 Nf8 Ng6 Nbc5 Qee4 Rh8 Ne5 Ng6 Nf3+ Kg2 Qee5 Kg3 Ng1 Kh2 Nf3+
1N6/p2q1q1N/k1bb4/2P1N1R1/n6r/b1pP3q/2PNqR2/KbnR1r1r b - - 0 1 illegal: Other
1nrR4/3b2r1/3b1r1B/nkrQ1B2/n1NPN2P/3br3/3P1K1P/1qq3n1 b - - 0 1 illegal: Other
qr5b/b2R1pPN/2P5/1nBn1q2/K2nP1n1/2B2nkn/2P5/1rnN3Q b - - 0 1 legal: proof: g4 a5 b4 axb4 f4 c5 a4 g5 e3 gxf4 Ke2 h5 d3 e5 g5 b6 Ra3 c4 Nd2 Ba6 Rb3 cxb3 Bb2 Bb5 Bh3 Bc4 Bg4 hxg4 dxc4 e4 Qf1 Rh4 Qf3 exf3+ Kd3 Rh8 h4 Ke7 g6 Kd6 h5 g3 h6 b5 h7 g2 e4 f2 a5 f1Q+ Kd4 f3 a6 f2 a7 Bg7+ Ke3 Nh6 Rh4 Ng4+ Kf4 Nc6 Bc1 b2 Kf3 Ke5 c5 b1N Ba3 d5 Bb2+ d4 Nh3 g1B Ba3 d3 Ng5 b3 Ne6 b4 Rh6 b2 Nf8 b3 Rh3 Rb8 a8Q Nd4+ Kg3 Nc3 c6 b1N Rh6 b2 Rh1 Na2 Qa6 Nbc3 Ne6 b1N Bc5 Nc1 Qb6 Na3 Nb1 d2 Nf8 Nd5 Nc3 d1N Qb1 Nab5 Rh3 Rg8 h8B Rb6 Nh7 Qa8 Rh2 Rgb8 Qa1 Qe1 Kg2 Kf4 Rh3 f1N Rd3 Ndf2 Nd1 Nfh2 Qb1 Nde2 Rd2 Ba1 Bc3 Nf3 Rd4 Qd2 Kf1 Kg3 Rd3 Qg5 Rd2 Nfe5 Ke1 Qf5 Rd4 Nh3 Kd2 Ndf6 Rd5 Ned4 Rd7 Bb2 Qa1 Nd5 Qb1 Nce2 Qa1 Nef3+ Kd3 Be3 Kc4 Nc1 Qb1 Bf4 Qa1 Be5 Qb1 Bh8 g7 Ba3 Qa1 Bb4 Qb1 R6b7 Qa1 Ba5 Qb1 Bb6 Qa1 Ba7 Qb1 Nde3+ Kb4 Nd5+ Ka4 Na3 Qa2 Rb1 Qc4 Nab5 Qf1 Qf4 Qh1 Qe5 Nb2 Qf5 Nd1
r3rn2/2k5/b3R2P/N2rnrQ1/1r1PP2b/1bBq1P1B/nNn1n1K1/1q6 b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 g6 dxc4 Qb3 e4 Qc2 hxg6 Qb3 g5 Qd1 g4 a4 f6 d4 f5 Qd3 exd3 e4 f4 Ra2 Qe7 Re2 Qd8 Re3 fxe3 h4 Kd7 h5 b5 h6 c5 a5 g5 f3 b3 a6 g3 a7 b2 Rh5 b4 Be2 b3 Kf1 d2 Nc3 b1Q Rh1 d1B Rh2 g2+ Ke1 b2 Nd5 c3 Ne7 c4 Ng6 g4 Nf4 c2 Rh1 g3 Nfh3 c3 Nf2 Ne7 Rh5 Nbc6 Rh3 Kc7 Bf1 e2 Ng4 Ng6 Bf4+ Qd6 Rh1 c1R Ne5 c2 Ng4 Ba6 Be3 Be7 Rh2 Qa3 Nf2 Bh4 Rh1 Nce5 Rh3 Rhe8 Bg5 Qd3 Bd2 Nf8 Bc3 Kb7 Rh1 Kc7 Ngh3 g1R Ng5 g2 Nf7 Kb7 Rh2 Kc7 Nd6 Rh1 Nc4 g1N Rg2 Rh3 Bd2 Rg3 Bb4 Rg5 Bc3 Rf5 Na5 Qc4 Kd2 e1N Ke3 Ne2 Nd3 Qb5 Rg3 Qb3 Kf2 Qc4 Nf4 Qd3 Bg2 Qa1 Bf1 b1R Bh3 Rb4 Kf1 Rcb1 Rg6 c1N Re6 Nc2 Kg2 Na2 Nb7 Rad8 a8Q Rd5 Na5 Rbb8 Qa7+ R1b7 Qa8 Qb1 Qa7 Ra8 Qc5+ Kb8 Qe7 Rb4 Qg5 Kc7 Nb7 Qc4 Nd3 Qb5 Nb2 Qd3 Qd2 Na3 Na5 Bb3 Qe3 Nc2 Qg5
1nr1b3/R2N3b/2b2KnP/n1q3PB/Pq1rN2B/5P2/rr1r1r2/k1b4Q b - - 0 1 legal: proof: e4 c5 b4 f5 d4 cxd4 f3 fxe4 b5 g5 b6 g4 Qd3 g3 Qd2 axb6 Qe2 b5 Qd2 b4 a4 h5 Kd1 Bg7 Qf2 gxf2 g4 Rh6 g5 Rh7 Ne2 Rh6 Rg1 Bf8 Rg4 hxg4 Ng1 Rh8 Bh3 Rh5 Be3 Rh7 Kd2 Bg7 Ne2 Kf8 Na3 Ra7 Rh1 Ra5 Kd1 Ra7 Bf1 Rh8 Ng1 Ke8 Nb1 Ra8 Bc1 Bf8 Ke2 Ra5 c4 Kf7 h4 Ke6 h5 Ke5 c5 d5 h6 b5 c6 e3 Kd3 e2 c7 e1Q Bg2 f1N Nc3 b3 Nb1 b4 Ne2 b2 Nbc3 g3 Be3 b3 Bh3 g2 Bg4 g1R Rh2 Qd6 Bc1 Bb7 c8Q Nd2 Qd7 Rg2 Na2 Bc6 Rh4 Nc4 Be6 Rb5 Ng1 Na5 Nb4 b1B+ Nc2 b2 Bf7 e6 Qe8 Ne7 Be3 Ba2 Nb4 b1B+ Nc2 Bg7 Qd7 Rc8 Bf2 Qc3+ Ke2 d3+ Ke3 d2+ Ke2 d1R Na1 d4 Bg8 d3+ Ke3 d2+ Ke2 Bh7 Qd8 Rbb1 Rf4 Qcb4 Ke3 Bf6 Bg3 Rf2 Bf7 Kd5 Ne2 Bb2 Be8 e5 Rf5 Kc4 Rf4+ e4 Bh4 Bc1 Ng3 Kc3 Nh5 Kb2 Nf6 Bf7 Rf5 Qdc5+ Kf4 Ka2 Ng8 Bh5 Rd5 e3+ Ke5 e2 Nb3 Ra1 Ke6 Kb1 Bf7 Ra2 Rd7 Kb2 Ra7 B5g6 Nd4 Ka1 Nb5 Bh5 Nf6 B5g6 Be8 Bh5 Bd7 Be8 Nd6 Ng6 Nde4 e1R Ng4 Re3 Kf6 Rb3 Ne5 Rbb2 Bg4 Re1 Qc7 d1R Bh5 Rd4 Nd7 Ree2 Qh2 Red2 Qh1
1BK3n1/b1p2b2/kPR1n3/Pqbq1P1r/n4Nb1/n4P2/2b2B2/2r1nQ1R b - - 0 1 illegal: Other
2r1Bn2/Qp1Pp3/1B1r1b2/N2nP1P1/3q2Nr/4P2k/Kn2q1bb/3R1b1q b - - 0 1 illegal: Other
QqqN1rb1/1nPp1k2/1N1qPbRr/1Bn2np1/3P4/8/Kb2Ppr1/2R5 b - - 0 1 illegal: Other
1k2q3/NR2B1b1/bq2B2r/p1PbPpKN/5r2/4rPp1/3Qn1P1/r3qn2 b - - 0 1 legal: proof: d4 b5 b4 c5 h4 cxb4 a4 bxa4 h5 e5 d5 g5 h6 g4 d6 Bxd6 Ra3 g3 Rd3 Bc5 Rd4 exd4 Bd2 Bf8 Be3 Bxh6 Bc1 Bf8 Kd2 h5 c4 d5 e4 Kd7 e5 Kc7 c5 a5 f3 b3 Rh4 d3 Ke3 d4+ Kf4 d2 Bd3 a3 Rh3 b2 Qe2 d1Q Nd2 b1Q Bh7 a2 Nf1 a1R Bc2 h4 Qf2 d3 Ba4 d2 Rh2 h3 Qe3 Nf6 Ne2 Nc6 Bb3 Kb8 Nc3 Ng4 Rh1 h2 Qg1 Qe1 Bb2 d1B Nd2 Nd4 Bc1 Ne3 Be6 Bg7 Na4 Ba6 Qf1 Qe8 Qe2 Rh6 Ne4 Nf1 Nac3 Bb3 Qd2 Ne2+ Kg5 Bd5 Nf6 Qb6 Nh5 f5 Rg1 h1R Nb5 Rh4 Na7 Re4 Rh1 Re3 Rh2 Kb7 Rh4 Rd8 Rb4 Kb8 Rb3 Bc6 Rb2 Rd4 Rb4 Rf4 Rb3 Ka8 Rb1 Bd5 Rb2 Qd6 Rb7 Qb6 Qc2 Rea3 Be3 Rh4 Qd2 Rd4 Bf4 Re4 Kh4 Ree3 Bg5 Ra4+ Qd4 Rc4 Be7 Rb4 Kg5 Rc4 Qd2 Rf4 Rd7 Kb8 Rb7+
R3b1q1/Nk3pp1/rPbpqb2/Q2rRP1N/pB1n2Pq/4P3/6p1/n1K5 b - - 0 1 legal: proof: d4 c5 a4 cxd4 c4 dxc3 g3 h5 a5 e5 a6 h4 Ra5 c2 Ra2 h3 Bg2 hxg2 Qd4 exd4 Ra4 bxa6 Ra3 a5 Ra1 a4 Kd2 a5 f4 d3 b4 a3 h4 a4 f5 a2 b5 Nh6 b6 Be7 h5 Nc6 Rh4 Bf6 Bb2 Nd4 Nh3 Ng4 h6 Ra6 h7 Ne3 Kc3 c1Q+ Kb4 d2 Ka3 d1B g4 Qc6 Nc3 Qe6 Bc1 Nec2+ Kb2 d6 e3 Kd7 Nf4 Kc6 Nh5 Bd7 Rb1 Qg8 Nb5 Be8 Na7+ Kb7 Bd2 a1Q+ Kc1 Bf3 Bb4 Bfc6 Rh1 Qaa2 Rb2 Na1 Rc2 Be5 Rc5 Bf6 Re5 Qf2 Rh2 Qh4 Rh3 Qf8 Rh1 Rg8 h8Q Ra5 Qh6 Rh8 Qf4 Rd5 Qf1 Qg8 Qb5 Qh7 Rh3 Rf8 Qa5 Qg8 Kb1 Bed7 Rh2 Ra8 Kc1 Be8 Ng3 Qg5 Rh8 Qh4 Nh5 Qh7 Nb5 Ra6 Rf8 Qg8 Na7 Bed7 Rd8 Be8 Ra8
n7/1N2n3/KP2Nb2/bR3n1q/2PP4/qkP3p1/qb4r1/1R1bBrBr b - - 0 1 illegal: Other
R1Rq4/1N1kPbqb/1b1pP2P/3q1Pb1/KN2r3/B2n4/7q/1qqnrB2 b - - 0 1 illegal: Other
n1b2N2/1n2QPrR/4Bp2/3PP3/q3P1qN/2qkp1pp/3q2N1/b5bK b - - 0 1 illegal: Other
3rrkb1/P2PP3/5N2/nqq2n1b/1r1RrQ2/p2RrB1P/3R2q1/2nKb3 b - - 0 1 legal: proof: b4 a5 g4 d5 f4 h5 c4 dxc4 a4 hxg4 Ba3 e5 b5 exf4 Bb4 b6 Nc3 Qf6 Nd5 axb4 a5 Qd6 a6 Qf6 Ne7 Qd4 Nc6 Qd8 Na5 bxa5 d4 c5 e4 g5 b6 f5 d5 f3 a7 b3 d6 g3 e5 c3 h3 g2 b7 c4 Bd3 f4 Bf1 g4 Ne2 g1Q Nd4 a4 Qc2 g3 Nc6 a3 Qf5 b2 Nb4 f2+ Ke2 b1R Qe4 f3+ Ke3 c2 Kd2 c1R Qf4 c3+ Kd3 g2 Na2 c2 Kd2 Rb4 Qf6 Qd7 Rb1 Nh6 Rb2 Nc6 b8R Na5 Bc4 f1B Qh4 f2 Qg3 Qb5 Bd3 Be2 Rh2 f1Q Bf5 Bh5 Be4 Qgc5 Nc3 g1R Bh1 Qg2+ Qf2 Nf5 Rb3 Rge1 Ne4 Re3 Rd3 Rce1 Nf6+ Kf7 Rd4 Be6 d7 c1N Rc8 R1e2+ Kd1 Ke7 Rc6 Rd8 Qf4 Bg8 e6 Re4 Rcd6 R2e3+ Ng4 Bg7 Rd3 Kf8 R6d4 Qb2 Bf3 Qg2 Nf6 Bh6 Qb8 Bg5 Qf4 Bh4 Rd5 Be1 R5d4 Qg6 Re2 Qg2 Rf2 Rh7 Re2 Re7 Red2 Ree8 e7+
4qq2/5b1N/2k1rPPq/nP2n1rn/b4p1N/b3R3/QB2P1nq/n4KN1 b - - 0 1 legal: proof: g4 b5 b4 f5 a4 bxa4 f4 c5 d4 cxd4 h4 g5 Bh3 gxh4 g5 e6 Bg4 Qa5 Ra3 Qc7 Rf3 fxg4 f5 Qa5 f6 Qd8 Rf5 exf5 c4 a5 g6 h5 c5 d5 c6 a3 c7 Kd7 Qb3 a2 Qb2 a1Q Bf4 h3 Kf2 d3 Kf1 g3 Be3 h4 Bf2 g2+ Ke1 a4 Nf3 g1Q+ Kd2 h2 Bc5 h3 Bb6 d4 Ng5 a3 Nf3 a2 Ba7 Qe8 Bc5 Nh6 Qc2 Kc6 Qc3 Be6 c8N Ng4 Qb3 Bf7 Qc3 Ra6 Nd6 Bh6+ Ng5 Ne5 Qc1 Qg3 Rf1 h1Q Nb7 h2 Kd1 d2 Kc2 d1B+ Kd2 d3 Rf2 Ba4 Qb2 Qh3 Kc3 d2+ Be3 d1N+ Kd2 Rb6 Bf4 Ne3 Qd4 Ng2 Bg3 Qg1 Nd6 h1N Bf4 Ng3 Nh7 Nh5 Qb2 Qgh2 Rf3 Ra6 Qb3 Qc3+ Kd1 a1N Re3 Qc5 Nd2 Bg5 Nf3 Rb6 Nb5 Qcf8 Nd6 Qh4 Bg3 Bf4 Ng1 Bh6 Rf3 Bc1 Re3 Ba3 Kd2 Qf4 Qa2 Q4h6 Bf2 f4 Nf5 Rb5 Nh4 Rd5+ Rd3 Rd6 Bd4 Re6 Rg3 Kb7 Rc3 Nbc6 Re3 Na5 Bb2 Kc6 Rb3 Ne3 Ke1 Ng2+ Kf1 Bg8 Ng5 Rh7 Rh3 Ra7 Rf3 Bf7 Re3 Rd7 Nh7 Rd3 Re4 Rg3 Re3 Rg5 b5+
3b2b1/1rbnrr1P/1N1RQ1R1/KB3nn1/b2qpP2/2k2rb1/1PqR3P/8 b - - 0 1 illegal: Other
3NNQ1n/2K1p3/3nb2B/Nq4br/PR1b2n1/3qPq2/1P2k1P1/1rn1b1q1 b - - 0 1 illegal: No proof kernel
1rn3b1/1nq2k2/1n2N2b/1R5R/2rn1Pp1/2Q2QPb/P2q1rrP/K4B1n b - - 0 1 legal: proof: c4 f5 d4 c5 e4 cxd4 b4 fxe4 g3 a5 b5 h5 b6 a4 Nd2 h4 Ndf3 h3 Nh4 a3 Ng2 hxg2 Bb2 axb2 Rc1 b1Q Rc3 Qa1 Nf3 Qxb6 Ng1 Qd8 Kd2 d5 Kc2 g5 f4 e5 c5 b5 c6 e3 c7 e4 Nf3 g1R Kb3 d3 Qc2 b4 Qd1 e2 Bg2 e1N Qe2 e3 Ne5 d2 Rd3 d1R Bh3 d4 Nc6 Rd2 Na5 Nc2 Bf5 Rg2 Nc4 Nd7 Bg4 Qe1 Kb2 b3 Rc3 d3 Qf1 e2 Qf3 Nb6 Rg1 Ne7 Rh1 Rb8 Rf1 Bh6 Qa8 Nd4+ Ka3 b2 Rf2 b1B Qa6 Kf7 Bf3 Bh3 c8Q g4 Rb3 Qd1 Qb5 e1N Na5 Qd6+ Qcc5 Rhc8 Qbb4 Qe5 Qc2 Rc4 Kb2 Nec8 Nc6 Qc7 Ka1 Re2 Qb2 d2 Q2a3 Nd3 Be4 Nc5 Bd3 Nb7 Nd8+ Ke8 Ne6 Kf7 Rf1 Qc2 Qba5 d1N Re1 Nf2 Rb5 Nh1 Rh5 Rd2 Bf1 Rdf2 Ree5 Qd2 Qf3 Bh7 Rb5 Bg8 Qac3
3b1RK1/2PBR2p/2r2Q2/1nP2b2/q2nPq2/rPk1rN2/n1Q3b1/n4b1r b - - 0 1 illegal: Other
1q3nrR/1P4r1/4RPBK/n1b1qbNQ/k1PQn1p1/1rp1P1b1/3r2r1/8 b - - 0 1 illegal: No proof kernel
5qb1/P1qnn2r/4p1PN/pnqk1b1Q/P2P1RR1/Q1b3K1/2q1p3/B1r5 b - - 0 1 illegal: Other
2rqbq2/3QbPp1/6b1/2q2N2/2rp4/1BPknpPK/3nRPp1/1R3Q1b b - - 0 1 illegal: Other
1BNbr2B/pp2R1q1/bpP2P2/q4n2/1Pp2K2/2n1Q3/qb1QP1k1/1r1q4 b - - 0 1 illegal: No proof kernel
K1N1rb2/P1rNbp1n/1R6/n1rRP2b/2r1R2Q/b2qr2b/3P1P2/6nk b - - 0 1 legal: proof: h4 d5 c4 dxc4 b4 g5 b5 gxh4 b6 e5 e3 axb6 Qa4+ b5 Qd1 b4 Bb2 Nc6 Bd4 exd4 Bd3 Nb8 Bc2 d3 Qe2 dxc2 Qh5 Qg5 Qd1 Qd8 Ke2 Ke7 Kf3 Kd6 Ke4 c1B g4 b5 a4 c5 a5 h5 g5 c3 g6 b3 a6 b4 a7 h3 g7 c2 Nc3 b2 Ra3 b1R Ra6+ Nc6 Ra1 h2 Ra6 h4 Nce2 c4 Ra4 h3 Nf4 b3 Ra3 c3 Ra2 b2 Nf3 Rh4 Ra4 Na5 Rb4 Nf6+ Kd4 Nh7 Re1 h1B g8R h2 e4 Bh3 Ne5 Bf3 Ng2 h1R Rb8 Bh5 Re2 Re1 Rb4 Rc8 Nc6 Rc7 Ne5 Ra1 Rh8 b1R Nd7 Ba3 Rb5 c1N Nf6 c2 Rc5 Rb5 Rf5 Rbc5 Nd7 Bb4 Nf4 Ra3 Ng6 Re3 Rd5+ Ke6 Nb6 Kf6 Ne5 Kg5 Nc8 Kf4 Nd7 Kf3 Ke5 Kg2 Rg8+ Kh1 Rg6 Ba3 Rb6 Be7 Nb8 Qd7 Kd4 Qb5 Nd7 Qd3+ Ke5 Ncb3 Qb1 Nd4 Qb4 c1B Qa4 Rg1 Qc4 Rg8 Qa4 Re8 Qb4 Bg5+ Kd6 Nf3 e5 Ng1 Qf4 Bb4 Qg3 Rhc4 Qh4 Bca3 Re1 Rf3 Re4 Re3 Nb8 Rce7 Nd7 Bh6 Rc6 Bf8 Kc7 Rg3 Kb8 Re3 Nb6 Rc7 Nd7 Rb5+ Ka8 Bbe7 Rh6 Rbc5 Rb6
kb2R1RB/1rq1qb1q/7P/3p4/bq3r2/R1qP2r1/Pnr2P1K/n3N1N1 b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 c3 a5 h5 axb4 Bc4 bxc3 Be2 Nh6 Bf1 Ng8 g4 Na6 Bc4 Bh6 Bf7+ Kf8 Bg6 Nb8 Qf3+ Nf6 Qh3 Ng8 Qh4 gxh4 g5 Bg7 Bf5 Ke8 g6 Bf8 g7 Nc6 Bg6+ hxg6 Kf1 Nb8 Ke2 Kf7 Ke1 Ke8 Kf1 d5 Kg2 Kd7 d3 Kc6 Nh3 e5 Be3 b5 Rc1 Kb7 Ng5 c5 Rc2 h3+ Kh1 h2 Bf4 c4 Rd2 b4 Rb2 c2 Bc1 c3 Kg2 h1Q+ Kg3 e3 Nf7 b3 Nd2 e2 Nb1 e1Q Nd2 e4 Nh6 e3 Nb1 g5 Bd2 c1Q Nf7 c2 Bc3 e2 Bd2 g4 Na3 Nc6 Bb4 Ra4 Bc3 Qe7 Bd2 Rf4 Rbb1 b2 Nh6 Be6 Nf5 Ne5 Nh4 Nf6 g8R Nfd7 Ba5 Qc3 Nb5 e1Q Bb6 Rh7 Nf5 Ka8 Ng7 Bf7 Nd6 Nc4 Ba5 Nc5 Bc7 Nb3 Ndf5 Qeb4 Rh8 Qee7 Bd6 Qhh4+ Kg2 g3 Ne6 Rg7 Rg8 Rh7 Nd8 Bg7 Bc7 Be5 Ne3 Rg7 Ba5 Bb8 Ne6 Rh7 Ng5 Rg7 Nf1 Rh7 Kg1 g2 Nh3 Rg7 Kh2 g1R Nd2 R1g3 h6 Qeb7 Rd8 Qhe7 Ng1 Qbc7 Ne2 Qe1 Rc8 c1R Ng1 Q1e4 Ndf3 Qh7 Ne1 Rc2 Rc1 b1B Re8 Nb2 Bb6 Re2 Bd4 Bc2 Rab1 Na1 Be5 Nc4 Rb3 Nb2 Ra3+ Ba4 Rg8 Rc2 Rb1 R7g6 Bh8 Rb6 Rd1 Rb5 Rd2 Rb7 Re2 Qef6 Ree8 Qfd8 Ng2 Qde7 Ne1
1B2N3/p1P1PKn1/1qr1r1nb/2NBq2b/3P4/2PQ2qk/nr1bN1r1/b7 b - - 0 1 illegal: Other
7K/N1BR1R2/4b2b/1Rk3n1/r2n1q2/PrPpnP1n/1p1r1bP1/2nn3B b - - 0 1 illegal: Other
1qn1bR2/1b1PR3/p6P/N1rrbP2/1q1q2n1/b2pNk2/N2P4/1b1K1b1Q b - - 0 1 illegal: Other
r4q2/2RP1bn1/N1K1n1P1/r2p1q2/NP2bqb1/1k1N3R/P4pQb/5bq1 b - - 0 1 illegal: Other
2Qr2n1/2PBn3/qPrbb3/RP3Prr/1p1q1kRB/1Bq5/4K1pq/4b3 b - - 0 1 illegal: Other
3r2q1/2b2b2/1kP2BPn/3q4/1n2B3/p2PQp2/b1PR1qRp/1rR1q1nK b - - 0 1 illegal: Other
1N6/K1b1R3/2PP4/R1PbN1b1/q1p1bQq1/p4pn1/1kqP1n1r/4R1rq b - - 0 1 illegal: Other
1B1n1n1K/2P2rP1/3n2Q1/1n2n1Pb/p2q1RnP/1rR2Q2/1b3r2/r4kB1 b - - 0 1 legal: proof: b4 b5 f4 c5 d4 cxd4 g4 g5 a4 bxa4 Nd2 e5 Nb3 axb3 Nf3 d3 Nd4 exd4 Bh3 h5 fxg5 Nf6 g6 Ng8 g5 Ba6 Bf5 Bc8 Bg4 hxg4 Kd2 Ke7 h4 Kd6 c4 Ke5 e4 Kf4 c5 Kg3 c6 Kf2 c7 a5 b5 f5 g7 d5 b6 f4 b7 g3 e5 f3 e6 g2 e7 g1N e8Q b2 Ra2 b1R Ba3 Nc6 b8B Nge7 Ba7 Ng6 Qd7 Rb3 Qh3 Bg4 Bc1 Bh5 Rc2 Ba3 Qc8 Bb2 Bb6 Rf8 Qf5 Rf7 Qg4 Nf8 Rc3 a4 Qc2 Kf1 Qe6 f2 Rh2 Nf3+ Kd1 d2 Qh6 Nfe5+ Rf3 Qd6 Qc5 Nd8 Kc2 d1N Qh7 d3+ Kd2 d4 Re3 Nc3 Reh3 Nb5 Qg6 Qf6 Qa3 Nd6 Rg3 Ra5 Rhh3 Rc5 Rf3 Rc2+ Kd1 Re2 Ba7 d2 Kc2 d1R+ Bd2 Ra1 Bb8 Ree3 Rf4 Rf3 Ba5 d3+ Kd2 Rb1 Bb6 Ra1 Re4 Rf5 Ke3 Rf4 Rc4 d2+ Rc3 Rf5 Rf3 d1N+ Kd4 Kg2 Rf4 f1N Kd5 Nh2 Bg1 Nhg4 Rd4 Rf2 Rf4 Nb5 Ke4 Kf1 Kd5 Nde3+ Ke4 N3c4 Kd5 Rd7+ Ke4 Qb6 Kf5 Nh7 Qf8 Qd4 Qff7 Nb7 Qd5 Ncd6+ Ke6 Rf7 Qh1 Rf5 Qf3 Nd8+ Ke7 Nhf6 Kf8 Nfd7+ Kg8 Rf7 Kh7 Nf8+ Kh8
b1b1N1b1/1B2PkQ1/rP3n1p/QbK1nb2/8/2B1nPb1/3qP2N/1qn5 b - - 0 1 legal: proof: b4 b5 h4 g5 g4 gxh4 d4 a5 a4 bxa4 g5 c5 g6 e6 b5 fxg6 Ra3 g5 Rb3 g4 Rb4 cxb4 Rh3 Ra6 Rd3 Rd6 Rd2 Rd5 Rd3 Re5 dxe5 Bh6 Rd6 Bf8 Rd5 exd5 Kd2 g3 Kd3 a3 Kd4 g2 c4 h6 c5 a4 b6 h3 e6 b3 c6 h2 c7 h1B Nh3 g1Q Qc2 b2 Qf5 a2 Qe5 a1N Nd2 b1B Qf5 a3 Nb3 a2 Be3 Bd6 e7 Nc2+ Kd3 a1N Bd2 d4 Kc4 d3 Qg4 Kf7 Qf4+ Nf6 Bg2 Ne3+ Kd4 Nc6+ Kc3 Ne5 Nc1 Nb3 Na2 Nc1 Be1 d2 Kd4 d1B Nc3 Ba4 Qe4 Bb5 Qa8 Bf5 Qa5 Qf1 Ng1 Re8 Bh3 Ba8 Nd5 Rg8 Nf3 Rg4+ Kc3 Ra4 Bg2 Ra1 Kd4 Qg1 Qa7 Ra6 Bd2 Qd1 Nh2 Qb3 Bc3 Qb1 f3 Ned3 Bh3 Bg3 Bg4 Ne5 Kc5 Ng6 Nf4 d5 Nh5 d4 Ng7 d3 Ne8 d2 Bh3 d1B Bg4 Ra1 Qa5 Bb3 Bh3 Qd2 Bg4 Bcb7 c8Q Ne5 Qd7 Bc8 Qd4 Bh7 Bd7 Bf5 Bc6 Bbe6 Bb7 Ra3 Qab4 Ra6 Qg4 Bh7 Qa5 Bef5 Qg5 Bg8 Qg7+
2r2k2/1r1q1nRN/K3Rq2/P1r1n3/bP3b2/n1b1Qb2/q1P1NP2/4Q1qr b - - 0 1 legal: proof: e4 a5 d4 c5 h4 cxd4 e5 g5 e6 gxh4 Bd3 a4 Bc4 fxe6 Bb5 e5 Bf1 e4 b4 a3 Bb2 axb2 a4 b5 a5 Nf6 Bc4 Ng8 Bb3 Nf6 Ba4 bxa4 Kd2 Ng8 Ke2 Bg7 Ke1 Bf8 Kd2 e5 g4 d5 g5 h5 g6 d3 Kc3 d4+ Kc4 d2 Kb5 e3 g7 e2 Ra3 e1B Rh2 h3 Qf3 d1Q Ra1 h4 Qd5 e4 Ra2 a3 Nc3 b1N Qc6+ Nd7 Qa6 d3 Nd5 d2 Qd6 e3 Qc7 e2 Nf3 Rh5 Ra1 a2 Qg3 Bd6 Rg2 h2 Qh3 h1Q Rg1 Nh6 Ne5 Qf6 Nc3 Nf7 Qg3 h3 Qg5 h2 Qh6 Na3+ Ka4 Ba6 Nf3 Bf4 Nh4 Bb5+ Kb3 Nde5 Qh7 Rc8 g8Q+ Ke7 Rg2 Qg1 Qg3 h1R Qe3 Kf8 Nf3 Bd7 Rc1 a1Q Qhe4 Be8 Ng5 Bc6 Na4 Qa2+ Kc3 Bd7+ Kd4 Bc6 Kc5 Rh7 Nc3 Ba4+ Qc6 R7h5 Kb6 Rh7 Ra1 Ng6 Qee6 Nfh8 Nge4 Rb7+ Ka6 Nf7 Rg3 Qc1 Rg5 d1B Qb6 Qd2 Rg2 Qd7 Rg4 Ne7 Rg7 Nc6 Ng5 Bed2 Qd4 e1R Rb1 Bf3 Qd3 Re3 Re1 Re5 Qf1 Qd4 Re3 Qd6 Qe1 Qd7 Ne2 Rc5 Re4 Bc3 Qb3 Bcd2 Re6 Nce5 Qe3 Bc3 Nh7+
1nQ3rb/K2nP3/Pp2Nk1q/3rPN1P/b2n2RR/3b3q/1Qqr1q2/q7 b - - 0 1 illegal: Other
3r3k/qPrbQNp1/5P2/bP1KPbQ1/3bn2b/b2rR3/1b1R3q/1n1N4 b - - 0 1 illegal: Other
Q5K1/1q2Pp1B/1Bqqn1br/P3Pn2/2Q1bb2/rb3Pkn/8/bq1N1N2 b - - 0 1 illegal: Other
3r1k2/N3rb2/P2n1P2/5pbn/1NpKRpqq/r4rP1/2Pb1QR1/2r2Q2 b - - 0 1 illegal: No proof kernel
4q1r1/2Kn1B1b/Q1p1P3/nPb1n3/2PR2P1/rp3r1p/B1n1brkQ/7R b - - 0 1 legal: proof: b4 a5 e4 e5 a4 g5 d4 f6 h4 gxh4 Bd2 b6 b5 Ke7 Bb4+ Kf7 Nf3 exd4 e5 Ke8 e6 Nh6 Ne5 fxe5 Nd2 Ng8 Nc4 axb4 a5 Bd6 a6 Bf8 Na5 bxa5 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 Kf4 c4 h5 g4 h3 f3 Kg3 f4 b3 a7 h2 f5 a4 f6 d3 f7 d2 Ra2 a3 Rb2 a2 Be2 a1N Qb1 d1B Qh7 e4 Bd3 e3 Rc2 e2 Rc3 e1N Be4+ Nd3 Bf3 h4 Be2 h3 Qg6 Qe8 Qh6 Ne7+ Kd4 d5 Bf1 Be2 Rc1 Ne5 Kc5 d4 Qd2 d3 Rc3 Rg8 Qd1 Nbd7+ Kb4 Bb7 Ka5 Nc2 Qa1 Be4 Ka6 Bf5 Kb7 Bh7 Qa6 N7c6 Bg2 Be7 Be4 Bc5 Bg6 Kg2 f8Q d2 Bf7 d1R Rd3 Rf1 Rd4 Rf3 Qh6 Rf2 Qf4 Rf3 Rf1 h1R Rb1 Rd8 a8B Rhf1 Re1 R1f2 Rb1 Nb6 Rh1 Rd6 Qa7 Nbd7 Qa6 Nd8+ Kc8 Rb6 Be4 c6 Bd3 Nb7+ Kc7 Na5 Bdg6 Rb8 Bf5 Ra8 Be4 Na3 Bb1 Nc2 Ba2 Nb7 Qb6 Ra3 Qa6 Na5 Qh2#
1nnBq3/pn1pp1kQ/n2PPb2/1r1n1bp1/1P4n1/4P1K1/1Nr2R2/2QQ4 b - - 0 2 illegal: Other
1q1N4/2Pq2N1/1bQbp1nq/1nr4N/K6p/1Q1PqP2/2k3Pb/B1q5 b - - 0 1 legal: proof: b4 a5 a4 b5 e4 f5 Ne2 fxe4 Nbc3 c5 Nb1 c4 Ng1 c3 Ra2 Ra7 Rb2 Rb7 Ke2 axb4 Ke1 b3 Be2 b4 Bf1 Rb5 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Bc4 cxb2 h4 g5 c3 d5 h5 Bf5 Rh4 Bg6 hxg6 gxh4 Bf1 h3 c4 Nf6 c5 Ng8 Bc4 dxc4 c6 h5 d3 c3 c7 Kd7 f3 Ke6 g7 Kd5 b6 Kd4 b7 e6 Qd2 e3 Kd1 h2 Qf2 h1Q Qf1 e2+ Ke1 c2 Kd2 e1B+ Ke2 Bf2 Kd2 Bd6 Na3 b1Q Qe2 b2 Qf1 b3 Nc4 Nc6 b8N Na7 Nb6 Qd7 Nd5 Ne7 g8Q Nb5 Qf7 Ng6 Qf5 h4 Qf7 Rh5 Ne7 Rc5 Nh3 Qg1 Qd1 Qa2 Qe8 b1Q Nf4 b2 Nh5 Qa7 Ke2 Kc3 Nbc6 Qb8 Nf5 Qa1 Bf4 b1Q Nd8 c1B Nfg7 Bd2 Bg5 B2f4 Bf6+ Bfe5 Qa4 Qbc1 Qa2 Qh6 Qd5 Qe7 Qec6 Qd7 Qa2 Bfd4 Qb1 Qge3+ Kd1 Qa3 Qa2 Bh2 Qc4+ Kb2 Be5 Ka1 Kc2 Qac1+ Kb3 Kb1 Ka4 Kb2 Qb4+ Kc2 Qa3 Bc3 Bd4 Ba5 Ba1 Bb6 Qb3+
K1b5/1rqn1BB1/3bQq2/nP1Q1br1/1B1R2qk/1bP3p1/q5PP/2qq4 b - - 0 1 illegal: No proof kernel
5b1r/P1nN1n2/bnpR1R1n/n2P4/k4rnp/qQ6/Q2P1p1P/bK4Q1 b - - 0 1 illegal: Other
n1B3n1/K1N2P2/3Pn3/kr2b3/bB1Nr2n/P1n1b3/B6P/nbNb2r1 b - - 0 1 legal: proof: d4 a5 g4 d5 e4 g5 c4 dxc4 f4 f5 b4 axb4 d5 Ra3 e5 Ra5 a3 Qd7 Qc2 Qd6 exd6 Ra7 Ne2 Ra8 Qe4 fxe4 f5 Ra5 Rg1 Ra6 Rg2 Ra8 Rf2 h6 Rf4 gxf4 g5 h5 Ra2 Ra4 Rd2 Ra7 Rd3 Ra4 Rg3 Ra8 Rg4 hxg4 Kf2 Kd8 d7 e5 f6 c5 f7 Kc7 d8N Kb6 g6 c3 g7 g3+ Ke1 f3 d6 g2 Kf2 g1R Ke3 f2 Nd4 c2 N4c6 b3 Bb5 f1B Bd2 c1N Nd4 c4 N8c6 b2 Nb4 c3 Ne2 c2 Nd3 Ra4 Nec3 Rh5 Nd1 Ne2 Be8 c1B Bc6 Nd7 Nbc3 b1N N1f2 Nd4 Ncd1 Nc3 Ng4 Ka5 Nc5 b5 Bb7 b4 Nh6 b3 Ba6 b2 Bb5 b1B Ba6 Bb5 Bb7 Nb6 Bd5 Ne6 Ba2 Na8 Kf2 e3+ Kf3 e2 Ke3 e1N Nb2 e4 Na6 Rf5 Nd3 Nf3 Nc7 Rc5 Nf5 Nh4 Nd4 Rac4 Ne8 Ba4 Nc7 Bb2 Nc1 Rb5 Be1 Bd1 Bf2 Bd7 Nf3 Be7 Nd4 Bd8 Nd5 Bb6 Nc7 Nh6 g8B Bc6 Bh7 Ng8 Bf5 Bc5 Kd2 Be8 Nc2 e3+ Kd3 e2 Bg4 Ba7 Bc5 e1N+ Ke3 Rf4 Nd4 Nc2+ Kd3 Re4 Kc4 Na1 Bf5 Rb8 Bg4 Bea4 Bf5 Ng5 Bg4 Rb5 Bc8 Ne2 Kd5 Ne6 Kc6 Bb6 Kb7 Bc3 Nc2 Be5 Nd4 Nc3 Ne8 Bd8+ Ka7 Bg5 Nc7 Be3 Bb4+
3B2K1/2r1N3/qpb3NP/kq4pN/B2p2qn/3P3r/PBPnb1b1/1n4b1 b - - 0 1 legal: proof: f4 c5 e4 g5 b4 f5 b5 fxe4 d3 c4 f5 c3 Qd2 cxd2+ Ke2 a6 Na3 axb5 Kf2 b4 Ke3 Nh6 Ke2 Ng8 Rb1 Ra5 Rb3 Ra6 Rc3 Ra4 Rc6 Ra8 Rh6 Kf7 Rh4 Ke8 Rf4 gxf4 g4 h6 h4 Qc7 g5 Na6 g6 Nb8 Rh3 Qa5 Rg3 Qd8 Rg5 hxg5 g7 d1B+ Kf2 d5 h5 Kd7 f6 Kc7 f7 Kb6 Nf3 e5 Kg2 b3 Bb2 e3 Bc3 b2 Bd2 b1N Ne1 e4 Kh2 f3 Kg3 e2 Bc3 f2 Bg2 f1B Be5 e3 Bf4 Nd7 Kg4 Qf6 Nb5 Ne5+ Kg3 Bd7 Nf3 e1Q+ Kh2 e2 Nd6 Qh4+ Bh3 e1Q Ne4 Bc5 f8B Nc4 Bc1 Qa5 Ne5 Bde2 Ng3 Qg4 Bb2 Rc8 Be7 Rc7 Ng6 Nh6 g8N Nf5 Bd8 Nh4 N8e7 Qb5 Bg2 Ka5 h6 Rf8 Nh5 Ncd2 Be4 Bg2 Bf5 Be8 Bd7 Qfa6 Bc6 b6 Bd7 Qgc4 Kg3 Bg1 Bc6 d4 Bd7 Rf3+ Kg4 Qbd5 Ba4 Bc6 Nf6 Qc8+ Kh5 Q4a6 Nh8 Nf5 Kg6 Qdb5 Kh7 Rh3 Nh5 Nh4 Kg8 Qg4 Nhg6
1K2Q3/PPpP1P1n/1qb5/1r1B1n2/kN2R2r/3nr1r1/1nn1r2P/6nR b - - 0 1 legal: proof: e4 a5 c4 h5 b4 d5 g4 hxg4 b5 dxc4 Bb2 f5 Ba3 fxe4 Qf3 e5 Qxf8+ Kd7 Bb4 b6 a4 Rh6 Nc3 Rh4 Nce2 Rh8 Nc1 Rh6 Nb3 axb4 a5 Rh3 a6 Rh8 Na5 bxa5 Ke2 g5 Ke3 g3 f4 g4 d4 g2 d5 a4 a7 b3 f5 a3 d6 a2 f6 c3 f7 b2 b6 Kc6 b7 b1R Ne2 Kb5 Rg1 c2 Qe8+ Nc6 Rh1 g1N Qe6 c1N Qg6 g3 Qg4 g2 Qh5 Nd3 Nc1 Nce7 Qf5 Nf6 Qf2 Nf5+ Kd2 e3+ Kc3 e2 Qc5+ Ka4 Kc4 e1N Qd4 e4 Ne2 e3 Qb6 Bd7 Nc1 e2 Nb3 Rh4+ Nd4 Nb2+ Kc5 Bc6 Nc2 Nh7 Nb4 Qf6 Nd5 Nc2 Nb4 e1N Bc4 Re8 Bd5 Re3 Qb5+ Ka3 Qe2 Ka4 d7 Nef3 Qe1 Ne5 Qe2 Re1 Rd1 a1R Rd4 Rac1 Re4 Qg6 Qg4 Qf6 Qg8 R1e2 Qe8 Rb1 Bc4 Bb5 Kd5 Ned3 Ba2 Qd4+ Ke6 Bc6 Bc4 Qb6 Bd5 Nd6 Ke7 Nf5+ Kd8 Nh3 Kc8 g1R Ba2 Rgg3 Bd5 Ng1 Na2+ Nc4 Kb8 Rb5 Nb4 Ncb2 Qh8 Ncd4 Qc8 Nc2 Qe8
B4K2/rp1Pn1Qb/1P5q/rknp3n/3r4/Nq1Rb2P/Pr1r2P1/5Bn1 b - - 0 1 illegal: Other
1bqR1B2/1Pbq4/Q1P5/p3r1qp/r3q3/P1K4n/PBbN1k1P/b1n1r3 b - - 0 1 illegal: Other
3R3n/2Q1b3/K2BP3/1n1PNp1p/3p1r1q/1rpq2B1/2PqP1P1/1k3rqb b - - 0 1 illegal: Other
5q2/2b2P2/B3PP1q/1Kn1qb1p/r2PRN2/5p1q/rP1np1kB/4R3 b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 d4 gxh4 a4 b5 axb5 f5 gxf5 Na6 Qd3 Nb8 e3 Qd7 Kd2 Qd5 Ra3 Qd8 Rc3 cxd3 Rc2 Na6 Ke1 Nb8 Re2 dxe2 Kd2 Bh6 Ke1 Bg7 Kd2 Bf8 f4 e5 f6 Ba3 f5 Qd5 Nc3 Qd8 Nd5 Bf8 Nf4 exf4 Kd3 Kd7 Kc4 Kd6 f7 a5 e4 h5 b6 c5 b7 h3 Kb5 a4 e5+ Kd5 Rh2 Ke4 Kc4 a3 Kb5 a2 Rf2 a1Q Bd2 h2 Rg2 h1Q Rg4 c4 Rg3 c3 Bh3 c2 Bc3 c1Q Bd2 Nd7 b8R Ra4 Bc3 Ngf6 Nf3 Nc5 Kc6 Bd6 Rg1 Bc7 Bd2 Qf8 Ne1 f3 Bg4 Qh3 Kb5 Qa3 Ba5 Qch6 Nd3 Ke3 Nf4 Kf2 Re1 Nfe4 f6 Bf5 Re8 Nd2 Bb6 Qa2 Ba7 Qd5 Bb8 Be4 Bc8 Bf5 Ba6 Rg8 Rh1 Rg1 Re7 Rga1 Re1 R4a2 Rd7 Qe4 e6 Ra4 Rd5 R1a2 Re5 Qe3 Nd5 Kg2 Re4 Ba5 Bf4 Bc7 Bg3 Qef4 Bh2 Qe5 Nf4+
1qr1N2r/2n1P1pP/pP1b2k1/P2pR2P/1n1rnK2/2Qp1b2/4N1r1/2R3b1 b - - 0 1 illegal: Other
1r3BbB/P1b5/2p1Br1Q/nP1P1rN1/6b1/pnbb1P2/2Pk4/2qqb1K1 b - - 0 1 illegal: No proof kernel
7B/2b2r2/n3n1K1/Bq1PP2p/ppb1kb2/pP1p2Q1/PNqp3P/4rB2 b - - 1 3 illegal: No proof kernel
q5b1/1n2Pq2/2rQ1b1n/2BP4/P3p1p1/nR2Kbp1/2rQPPB1/5qkn b - - 0 1 illegal: Other
3r2rB/Pp2P1b1/p3P3/Rp6/PP3Bbn/3Pbqqk/1p2brB1/6nK b - - 0 1 illegal: Other
1R2QK1b/N3B1rk/p5N1/1n2RnN1/bQ6/bnr5/Bb3Qqq/2r4R b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 g5 e4 f5 exd5 fxg4 h4 gxh4 c4 e5 f4 e4 c5 Bxc5 f5 e3 f6 Bf8 Qc2 Qxf6 Qd1 Qd8 Ke2 Kf7 Kd3 Kg6 Kd4 h5 Ke5 c5 b4 a6 d4 e2 b6 e1B b5 h3 b7 h2 d6 g3 b6 c4 d7 c3 Ke6 h4 d5 c2 d6 g2 Ne2 g1B Ra2 h3 Nec3 Nh6 Ne4 Ra7 Ba3 c1N Qd2 Kh7 Qf2 Qc7 Nbd2 Nc6 b8Q Nb3 b7 Nf5 Kf7 Ncd4 Nf3 Nb5 Re2 Bc3 Nh4 Bb2 Ng6 Qc2 d8N Bd7 Bb4 Bfg7 Nc6 Rc8 Re1 Bh8 Bc4 Qd2 Bc5 Qg5 Re3 Qg2 Re2 Rc7 Kf8 Be8 d7 Ba3 Qg3 Bgd4 d8Q Bdb2 Qf2 Rg7 Qb6 Ra8 Q8d8 Rc8 b8R Rcc7 Na7 Rc6 Rg1 h1R Be7 h2 Rc1 Bd7 Qe8 Rc5 Bf7 Rc3 Qbd4 Rd1 Qb4 h1Q Be6 Qhh2 Ng5+ Kh6 Rb1 Rdc1 Re5 Bc6 Nf3 Kh7 Bd5 R1c2 Rh1 Rc1 Bf7 Nc7 Bc4 Ba4 Be6 Nb5 Bd5 Na5 Ba2 Nb3 Ng5+
1qb1Q3/QqQpr3/R3r1N1/1qn2n1k/3BrR1b/4r3/3KB3/Rb1B2N1 b - - 0 1 legal: proof: d4 g5 e4 b5 a4 f5 exf5 c5 h4 cxd4 c4 gxh4 b3 bxc4 b4 a6 b5 axb5 axb5 c3 g4 Kf7 f4 e5 b6 h5 g5 c2 f6 Kg6 b7 d3 f7 h3 Ra4 h2 Nh3 e4 Nd2 e3 Rc4 h4 Nb3 e2 f5+ Kh5 g6 Rh7 f6 Ra4 g7 Nh6 g8B Be7 f8R Na6 b8Q Nc5 f7 Nf5 Rf4 Re4 Bd2 c1R Be3 Rc3 Ng1 h3 Qc7 Bh4+ Kd2 Qe8 Qa1 e1R Qa3 Rh6 Bf2 Rhe6 Na5 R1e3 Nc4 Re2+ Kd1 d2 Ne5 Rce3 Qaa7 Re7 Kc2 d1B+ Kc1 Bb3 Ng6 Bc2 Bh7 Re1+ Kd2 Bb1 Rh8 R4e6 f8Q R3e4 Bd4 R1e3 Qf7 Qf8 Qe8 Qg8 Nf3 Qf8 Rg1 h1Q Be2 h2 Rd1 Qf1 Ng1+ Kg5 Bg8 h1Q Rh6 Qhf3 Rc1 Qh1 Bd1 Qb5 Bf7 Rd6 Bc4 Rde6 Bce2 Qh8 Nf8 Qe5 Rf6 Qf3 Ng6 Kh5 Qcb7 Qb8 Qc7 R6e5 Ra6 R5e6 Rc3 Q8b6 Rca3 Qb7 Rg4 Qg3 Ra1 Qe5 Qa5 Qeb8 Rf4+ Kg5 Qc7 Kh6 Rf3 Kh5 Rf4+
1q5n/2q2B1p/4nR2/1Qbk1pb1/R1R3bb/1n3NQ1/K4BpN/3Bb2Q b - - 0 1 legal: proof: b4 e5 f4 exf4 g4 a5 c4 axb4 a3 bxa3 Bb2 d5 Bc1 dxc4 h4 b5 g5 f5 Nh3 Ra6 Ng1 Nh6 Bb2 Rg8 Bc1 Rf6 gxf6 g5 Bb2 g4 Bc1 Rg5 hxg5 Ba6 Rh5 Bb7 Rh1 Bc8 e4 Kd7 d4 Kc6 Kd2 f3 Kc2 f2 e5 b4 e6 g3 e7 b3+ Kc3 g2 e8Q+ Kd5 f7 c5 g6 b2 g7 a2 g8B Qc7 Qde2 Nd7 Qd1 Bb7 Kc2 c3 Kb3 c2 Be3 c1B Qe1 Bd2 Be2 f1N Qg3 Be1 Nd2 b1Q+ Ka3 Qb5 Ndf3 Nd2 Rh4 Nb3 Nh2 c4+ Kb2 Bc6 Ngf3 Qbb8 Bf2 Ndc5 Bd1 c3+ Ka3 Be7 f8R+ Nf7 Re4 Ba8 Qb5 c2 Rc1 a1B Ka2 Bh4 Rf4 Kd6 d5 Nh8 Rf6+ Ne6 Bf7 Bd4 Ra1 Bc5 Rb4+ Ke7 Rc4 Bc6 d6+ Kd7 Rc3 c1B Rc2 Bcg5 Rc4 Kd8 d7 Ke7 Rf4 Kd6 Rc4+ Kd5 d8Q+ Qd7 Qda5 Qdc7 Qa3 Ba8 Qb2 Bb7 Qe2 Ba8 Qf1 Bc6 Qh1 Be8 Bg8 Bh5 Bf7 Bg4 Kb2 Qe7 Raa4 Qec7 Ka2
NK4B1/2N1b1Rq/2r2Nk1/1b3b2/3n1brQ/b4Qq1/1Q1r1n2/qB1B2Rn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 a5 Kd3 f5 Kc4 Kf7 Kd5 g5 b4 d3 e4 d2 h4 a4 c4 g2 h5 g3 b6 g4 e5 f4 b5 a3 c5 f3 b7 f2 c6 a2 h6 Be7 b6 Kg6 e6 Ra6 c7 Nc6 b8Q Nd4 h7 Nh6 b7 Rg8 h8Q Rc6 Bd3+ Nhf5 Qh4 f1B Nh3 g1B Nc3 g2 Ne4 g3 Nhg5 Bh2 Nf6 g1B Qf3 d1R Bb1 Bb5 Ke5 Ba3 e7 d5 Ne6 Qd7 e8B+ Qf7 Bd7 Rd2 Be8 Be3 Rf1 Bg5 Rf2 Bd7 c8B Rg7 Nc7 g2+ Qhf4 g1Q Na8 Qg3 Rf1 Kh6 Rg1 Qg8 Bf7 Qh7 Bg8 Kg6 Rf1 Ne6 Rf2 d4 Kd5 d3 Qh4 Bf4 Qe5 Be7 b8N Ned4 Na6 Ba3 Qee2 Bfd6 Bb7 Be7 N6c7 Bc8 Bc2 Bd7 Rg1 a1Q Rff1 Nh6 Bb3 Bf5 Bd1 Ng4 Ba6 Nf2 Bb7 Ra2 Qb2 d2 Ba6 Nh1 Rf2 Ba4 Bd3 Bb5 Rff1 Qg2 Rf2 Bf4 Bb1 Qg3 Re2 Bed6 Re7 Bdc5 Rf7 Bcd6 Bdc2 d1N Bb3 Ndf2 Bd1 Bfd3 Qb4 Rd2 Qb2 Nf5 Ke6 Nd4+ Kd7 Be7 Kc8 Bc2 Kb7 Bf5 Qhg4+ Kh6 Kb8 Rg5 Qh3+ Kg6 Qh4 Rg4 Rg7+
1R1n1b2/QRk1q2N/1nN5/4r2n/4p1bQ/bn2KB1R/2q2nB1/n3QBr1 b - - 0 1 illegal: No possible last move
1r2bN1r/1k2B1n1/2n1Rnq1/2r3q1/K1p1Q2Q/1nB5/3NN2Q/2B1Rrnb b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Bg2 f5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qb3 Ra5 Kc2 Bf4 gxf4 Qe7 Kb2 Ra6 Qd1 Ra8 Kc2 Qd8 h4 Kd7 a4 Kc6 d4 f1R e4 g5 h5 b5 f5 g3 f6 c3 Kb3 c2 h6 g2 f7 f2 f8B g4 h7 g3 a5 Qg5 a6 Bb7 a7 Nf6 Ba3 c1R e5 Rc5 Ne2 g1N e6 g2 e7 Kb6 e8Q Nc6 d5 Rb8 Kb2 b3 a8Q b4 d6 Nf3 d7 g1N d8B Nfd4 Qe5 Nf5 Qh2 Ng7 Qa4 Ba8 Qd5 Kb7 Nd2 Qg2 Re1 Qg5 Ka1 b2+ Ka2 b1B+ Kb3 Bg6 Bc1 Bh5 Bde7 Be8 Kb2 b3 Ka3 b2 Qah4 b1Q Ka4 Qbg6 Qde4 Re5 Bb4 Rc5 Bc3 Rd5 Qhg2 Ne5+ Kb3 c5 Rh3 c4+ Ka3 Ka6 Qef3 Rg8 Rd1 Re1 Qh2 Rdb5 Qd3 Bh1 Re3 Nc6 Re6 Kb7 Be7 Rf5 Qde4 f1N Nb3 Nd2 Ka4 Ref1 Re1 Rc5 h8N Qh7 Ng6 Rh8 Nf8 Qhg6 Nbd4 Nb3 Nf3 Q5h5 Nd2 Qd5 Qc2 Qdg5 Qce4
3qQ3/2n1RR2/2r1r2r/3k3q/Nnp2QrN/Kb3B2/b1N3q1/b2QBbR1 b - - 0 1 illegal: No possible last move
5rnr/3rk1K1/NR2b1Q1/2qNR1n1/1Np3B1/8/bb1R1n1Q/nBq2Bb1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 e5 Ba3 exf4 axb5 d5 b6 dxc4 b5 Nh6 Bd6 Ng8 Bb4 axb4 Kf2 c5 Kf3 f5 g4 h5 e4 h3 d4 h4 g5 c3 d5 c2 g6 c1B b7 h2 b6 c4 e5 h3 e6 b3 e7 b2 g7 Na6 b8Q Nc5 b7 Qb6 d6 Ne6 Qd3 Qc5 Ra6 Ra7 Nc3 b1B Nge2 Bb2 Nc1 Ba2 d7+ Kf7 e8B+ Ke7 Rg1 h1N d8R h2 Bg6 Nf2 Rb6 h1Q+ Rg2 Qh6 Rd5 Bd7 Qc2 Bc8 Nd3 Ng5+ Ke2 Qh1 Nb4 Be6 Re5 f3+ Kd2 f4 Ncd5+ Kd7 Be4 Qg1 Qd6+ Ke8 b8N Rd7 N8a6 Qh1 Qc6 Bd6 Ne3 Ke7 Bed3 Bb8 Qe4 Ba7 Qg6 Nd1 Rh2 f2 Rg2 f3 Ned5+ Kd8 Bf5 Qg1 Bg4 Qh1 Be2 f1R Rh2 f2 Rg2 Re1 Bf1 Re4 Rh2 Rf4 Ke2 Rf8 Qd2 Nf6 g8B Qg1 Bh7 Ng8 Qf7 Qh1 Bb1 Qg1 Qg6 Qh1 Bg2 f1N Qdc2 Nfe3 Bf1 Nf2 Kd2 Ba3 Kc3 Bc1 Qd2 Nc2 Rg2 Na1 Qf4 Nfh3 Rd2 Nf2 Qh2 Ba3 Bg2 Qe1 Bf1 Qc1+ Rc2 Nf7 Rc6 Qb5 Re2 Nh1 Rd6 Be3 Rb6 Bg1 Re1 Nf2 Kd4 Qa5 Rd2 Ng5 Ke5 Qc5 Re4 Bf7 Ree2 Bb2+ Kf5 Rb7 Re5 Rd7 Qgh6 Be6+ Kg6 Nf7 Kg7 Ke8 Nc3 Ke7 Qg6 Ng5 Ncd5+
2R3N1/2b1q3/KBkn2b1/2b2QN1/2Q5/2Bbrb2/b2prQ1r/NrnBR3 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 f5 Kd3 d5 h4 Kd7 c4 g5 e4 f3 b6 b3 e5 f4 b7 f2 e6+ Kc6 e7 f3 e8N b2 h5 g3 c5 g4 h6 g2 h7 g3 Qd2 Qe7 Qf4 Nh6 Ne2 g1R Ng7 g2 Ra5 Nd7 b8Q Nf7 Ra4 Nd6 Rc4 Ra2 Na3 b1R Ng3 Re2 Bd2 Bb7 N3h5 Ne5+ Kc2 d3+ Kc3 Ba6 Be3 d2 Qf5 d1B Ne6 Nd3 Nf6 Nc1 Qb2 d4+ Kb4 d3 Ka5 d2 Nc2 Bb7 Na1 Bb3 Ng8 Ba2 Qbf6 Bh6 Rc3 Bf4 Ng5 Rb3 Bd4 Ba8 Rc2 Rbe3 Ka6 Be5 Rh4 Rh1 Re4 g1B Bh3 f1B Bg4 f2 Rc4 Re1 Bd1 Bd3 Qf8 f1B Bc3 Kd5 c6 R1e2 c7 Bh3 Qf2 Bf5 c8Q Bg6 Qf8f5 Bc6 Ba5 Ba8 Bb6 Rh2 Nh6 Re8 Qc7 Rb8 h8B Bc6 Ng8 Rb7 Bc5 Rb1 Qcc8 Ba8 Qce6+ Kc6 Bf6 Bb2 Bc3 Ba3 Bb6+ Bc5 Qf1 Bf2 Qe1 Bg3 Qef7 Nb5 Qef2 Bc7 Re5 Qd6 Re8 Qe7 Re4 Nd6+ Qc4 Qf6 R4e6 Qe7 Rf8 Kd7 Rc8 Bf3 Re4+ Kc6 Rg4 Rh6 Rg1 Rh2 Re1
4Qn2/3QRB1n/1nqBn2N/2kq1qb1/1q1Np1B1/6Q1/2qr4/2bb1NKR b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 b5 f4 c5 h4 cxd4 e4 f5 g5 fxe4 h5 g6 Qd2 Ra6 f5 gxf5 Qd1 Rg6 hxg6 f4 Kf2 d5 c4 Kd7 a4 Kc6 a5 e5 a6 h5 g7 f3 g6 e3+ Kg3 d3 Kh2 e2 c5 e1B a7 f2 a8N d2 Ra4 h4 Qh5 d1Q Qe2 d4 Qc2 b3 Ne2 b4 Ng1 h3 Qe4+ Qd5 Bh6 d3 Bf4 b2 Be2 f1Q Bc1 b3 Nb6 d2 Rd4 Nf6 g8Q Be7 g7 Nh7 Nf3 Qc2 Qg4 d1N Nc3 b1N Rb4 b2 Qf5 Nd2 Re4 b1Q Ng5 Nb3 Nd7 Ne3 Nf3 Bd2 Nf6 Nc4 Nb5 Nb6 Ba3 Bc1 Ng4 N8d7 Nh6 Beg5 Nd2 Ndf8 Bg4 Nd4 Qf4 Nde6 Qg3 Qf5 Kg1 Qb4 Nf1 Bb7 Qf7 Bc8 g8B Bd7 Qg7 Be8 Re1 Bh5 Bf7 Rg8 Nc3 Rh8 Ne2 Kb5 c6 Kc5 c7 e4 c8Q+ Qc6 Qe8 h2+ Kg2 Qcd5 Rd1 Qc6 Rd7 Qfd5 Rg1 h1Q+ Kf2 Rg8 Re7 Qh3 Rh1 Rh8 Kg1 Rg8 Bf3 Qhf5 Bg4 Rh8 Nd4 Rg8 Bh3 Bd1 Bg4 Rh8 Q7e5 Rg8 Qc7 Rg6 Ng8 Rh6 Qcd7 Rh2 Nh6 Re2 Bb2 Rh2 Bc3 Rf2 Bd2 Rh2 Bf4 Rd2 Bd6+
K2RNq2/2qQn3/1R1q1Qb1/2RnBpb1/2p2B2/1nN5/Q3brrk/B1r5 b - - 0 1 illegal: No possible last move, all moves rejected
2N2K2/1brb1bQ1/1Nk2q2/Br1b4/3n1b1p/1RNQ2rR/1p1BQn2/4n1B1 b - - 0 1 legal: proof: b4 d5 h4 a5 c4 axb4 cxd5 g5 f4 gxh4 e3 e5 a3 exf4 Bd3 Nf6 Bc4 Ng8 Ba2 b3 Qh5 bxa2 Qe2 Ra4 Qd1 Ra8 Kf2 h3 Kf3 Kd7 Ke4 h5 Kf5 b5 g4 c5 d4 h2 a4 f3 e4 f2 g5 f1B e5 h4 d6 c4 d5 c3 a5 b4 a6 b3 g6 b2 g7 c2 a7 Bg2 Na3 Nf6 g8Q Bh6 Nc4 Nc6 Ne2 Rb8 a8N Ng4 Bf4 c1N Nc3 Nd3 Qc2 f6 Kg6 f5 Kf7 Rb5 Bd2 Ne1 Qd3 f4 Qgg6 f3 Qh7 Qg5 e6+ Kd8 d7 f2 Nab6 Kc7 e7 Nd4 e8Q Rg8 d6+ Kc6 Qee2 Rg6 Qg7 Bd5+ Kf8 Qe5 Qg3 Bf4 Qh3 Bf7 Qhe3 f1B Q3d3 Ba6 Nc8 Bh3 Qf6 Qg5 N4b6 Nf2 Qfe5 Bg4 Qg7 Qf6 d8B Bg5 Bc7 Be3 d7 Rgg5 d8B Bd7 Bg3 Bf4 Be7 Rg4 Bb4 Rgg5 Rg1 Rg6 Rg2 h1B Rh2 Bhd5 Rh3 Rg5 Bh2 Rg3 Nba4 Rb7 Bg1 Rc7 Nab6 Bb7 Nd1 Bh1 Bbc3 Bhd5 Rc1 a1R Rc2 Ra3 Ba5+ Rc3 Rc1 Rc4 Rc3 Rc5 Rb3 Rb5 Nc3
2R2BnK/6R1/qq2q3/1RnQN2p/Nb3k2/1n1p2N1/1QB1b1r1/2Brq1b1 b - - 0 1 illegal: No possible last move
6n1/Q1n2KNn/bR2p1p1/1r3BQ1/k5q1/2bnRN1Q/3b4/qrR2NBq b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 c5 d4 cxd4 Kd2 f5 Ke1 b5 axb5 fxe4 Bh6 axb4 Bd2 Rh4 Bc1 Rh8 Kd2 d5 f4 Kd7 h4 e6 c4 g6 b6 Kc6 f5 g3 f6 d3 Ke3 g2 Kf4 d2 Ke5 b3 c5 e3 h5 e2 f7 Kb5 h6 b2 h7 d4 c6 d3 b7 e1B c7 Bb4 f8R Qh4 Qh5 d1N Ra3 Ra5 Qg5 Qg4 Nf3 g1N Be3 Nh3 Nbd2 b1Q Bg1 Na6 b8Q+ Bb7 c8N Nc7 Rf4 Ndf2 Qa7 Ba6 Ne7 Bc3+ Rd4 Qa1 Nf5 Na8 Be2 Nc7 Nf1 Bed2 Ng7 Nd1 Qh5 Nb2 Bd1 Ng5 Bc2 Nh3 Kd6+ Ng5 Rd5+ Kb4 Re5 Rb5 Rb3+ Ka4 Re3 Ne7 Bb1 Rhb8 h8Q Nh7 Qg5 Ng8 Kd7 Be1 Bc2 d2 Bf5 Nd3 Rb1 d1Q Rc1 Ngf6+ Ke7 Bed2 Kf7 Ng8 Rh3 Rb1 Rh2 R8b5 Rg2 Be1 Rb2 Bed2 Rb3 Qe1 Rb2 Qeh4 Rb3 Qh1 Rb2 Nhf6 Qh3 Nh7 Rb3 Rc5 Rb8 Rcb5 Rb6
1r6/bQN1b1R1/1nb2Np1/n3bBk1/B7/2b1Q2K/1p1b1r1N/QR1q1R1r b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 e4 f5 Bb2 fxe4 Ba3 bxa3 h4 Kf7 f4 Kf6 Kf2 b5 Kg2 e5 d4 c5 f5 g3 d6 e3 d7 e4 a5 c4 h5 g6 a6 c3 a7 e2 d5 e1R d6 c2 h6 c1B h7 e3 Qd4+ Kg5 f6 a2 f7 e2 Na3 b4 Rb1 a1B Nb5 b3 Nc7 Bc3 Kh3 Bf4 Qe3 Be7 f8N Nf6 Bg2 Rd1 Be4 g2 Bf5 Rd2 Rf1 e1B Nf3+ Kh5 Rhg1 Nd5 Nh2 Nc6 Rh1 Rb8 a8B Na5 Bc6 g1B Ba4 Beg3 Rb1 B1f2 Rhd1 Nb6 Rf1 Rg8 h8Q+ Kg5 Qh7 b2 Qg7 Rh8+ Nh7+ Kh5 Qf7 Bb7 Nf6+ Kh6 Qa2 Bc6 Qa1 Bg5 Rbe1 Bge5 Rb1 Qc8 d8Q Qd7 Qc8 Re2 Qg3 Bgd2 Qb7 Bfe3 Qf3 Rf2 Qe2 Qd8 d7 Kg5+ Nh5 Qc8 d8R Qd7 Rg8 Qd3 Rg7 Qc2 Qc4 Qd1 Qd4 Nd7 Qd5 Ba7 Qd3 Nb6 Qe3+ Bf4 Ng4 Rf3+ Kg2 Rh7 Nhf6 Rh1 Nh2 Rf2+ Kh3 Rg1 Qe4 Rh1 Qf3 Bfe5 Qe3+
1N3B1N/2K1b3/p1RBr2r/pk6/1nNq1Q2/R2n4/2QrQn1r/bB4nr b - - 0 1 legal: proof: d4 e5 a4 c5 f4 exf4 a5 cxd4 Nh3 b6 Ng1 bxa5 g3 fxg3 h3 g2 Bh6 g6 Bc1 g5 Nf3 g4 Bd2 g3 Ng1 Bb7 Bh6 Bf3 Bc1 Bg4 hxg4 Be7 Rh3 Bc5 Rh1 Bf8 Kd2 h5 Kd3 f5 Kc4 d5+ Kb5 Kd7 c4 h4 e4 d3 b4 f4 g5 h3 c5 f3 g6 d2 g7 h2 e5 d4 e6+ Kc7 c6 f2 e7 d3 e8Q Nd7 Na3 Bd6 Ne2 g1N Qf7 g2 Qf4 Rh7 Nd4 Rh6 Nc4 Ne5 Ba3 Ne7 g8N Nd5 Qe2 d1R Ne7 d2 Ng6 Nd3 Nh8 Re1 Ka6 d1R b5 Rd2 Bc5 Qd7 Ra3 Re8 Bb4 Ree6 Bc5 Rb1 Bb4 Rbb2 b6+ Kc8 b7+ Kc7 Bc5 N5b4+ Kb5 Be5 Bf8 Bd6 Nf3 Qg7 Nfe5 Be7 Nd7+ Qe5+ Nc5 Qd6 Nd7 Rbc2 Nb8 Ra2 Qeg4 Rac2 Be2 f1R Bd1 Rb2 Bc2 Rc1 Qe2 Re1 Ne5 Qd4 Bb1 Kd6 c7 Kd5 Ka4 Kc5 c8Q+ Kb6 Qc2 Ra2 Kb3 a6 Nc4+ Kb5 Qfg4 Red1 Qf4 Nh3 Rf1 h1N Rf3 g1B Re3 Rb6 Re6 N1f2 Rc6 Bh2 Rg6 Rh1 Rc6 Qd7 Kc3 Qg4 Kd4 Ng1 Nd7 Bg3 b8B Bgh4 Bd6 Bhf6+ Ke3 Ba1 Nb8 Nd1+ Ke4 Qg7 Kf5 N1f2 Ng6 Qc3 Ke6 Qd4 Kd7 Rb2 Nh8 Re6 Kc7 Reh6 Bc5 Ra2 Rf6 Re6 Bd6 Re5 Qc1 Rdc2 Qh5 Nd1 Bc5 Rch2 Rc6 Ree6 Qe2 Rd2 Qc2 N1f2 Bd6
4R1n1/b4K2/r2BQN1k/Rb2B2n/rb3p2/1qN3RQ/1p2Nrn1/1Bb3r1 b - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 Kf2 h5 Kf3 f5 d4 Kf7 g4 Kg7 e4 c5 d6 b5 e5 b4 d7 a2 g5 b3 e6 h3 e7 h4 e8Q c4 g6 c3 d5 h2 d6 h3 Bg2 c2 Qd4+ Kh6 g7 Ra4 Qc5 Ba6 Qce5 Bb5 Qe4 Qb6 d8B Nd7 Q4e7 Ndf6 d7 Nh5 Qh4 Bb4 Bb2 c1B Ne2 Qe6 Rg1 h1R Nbc3 h2 Qh3 Qf7 Re1 Rg1 Bc7 h1R d8R Rh2 Bd6 Rh7 Ra8 Qc4 Rb1 a1B Ra5 Qf7 Bh1 Rhg2 Qe6+ Rg6 Nd5 Rh8 Bf6 Bd4 Bfe5 b2 Ndc3 Bb6 Ra1 Ba7 Ra3 Rf6 Qe8 Qb3 Qe6 Ne7 Bg2 Rc8 Bh1 Rc6 Bg2 Ra6 g8N+ Kh7 Bf1 Rf7 Nf6+ Kh6 Ng3 Rf8 Bd3 Ng8 Nge2 Rf1+ Kg2 f3+ Kh2 f2 Bb1 f4 Kg2 Rc8 Kf3 Rg1 Ke4 f1N Kf5 Rcc6 Qe7 Rc4 Ke6 Ne3 Kf7 Ng2 Qee6 Rd4 Ng3 Rd2 Re3 Rf2 Nge2 Bd3 Rg3 Ne7 Rg8 Bb5 Re8 Ng8 Ncd5 Qa2 Rg3 Qb3 Ndc3
7q/2Q1B2q/N1Rqnp2/n1Q2B1R/4Rk2/BN1np1rb/2b1Kbn1/2b3N1 b - - 0 1 legal: proof: d4 a5 g4 e5 f4 b5 b4 axb4 e4 h5 d5 hxg4 d6 cxd6 Bh3 d5 Bg2 Ra6 Bf1 Re6 Nc3 dxe4 Nb1 e3 Ke2 e4 Ke1 Re5 fxe5 Rh5 Bb2 Rh7 Bc1 Rh8 h4 Ke7 c4 Ke6 a4 Kf5 h5 d5 a5 g5 e6 g3 h6 g2 c5 d4 c6 e2 a6 d3 e7 b3 e8R g4 a7 b4 a8N d2+ Kf2 e1N c7 b2 h7 g3+ Ke2 e3 Qc2+ Kf4 Nf3 g1N+ Kd1 f6 Qb3 g2 Qf7 b3 Be2 Ba3 Re6 Nh3 Bb5 g1B Ng5 Nc6 Nf3 Ng2 Re5 Nh6 Bd3 Bf2 Ng1 Ng4 Ke2 Ng5 Rh5 Ne6 Bf5 Rg8 h8B Na5 Bg7 Qd6 Bf8 d1B+ Kf1 Rg5 Be7 Bc2 Nd2 b1Q Ke2 b2 Nb3 Qa2 Qf8 b1Q Bb2 Bd7 c8Q Rg6 Nc7 Rg8 Bc3 Bc1 Na6 Qa4 Qc5 Qe4 Qf7 Qa8 Bb4 Qd8 Rd5 Ne5 Ba3 Nd3 Re5 Rg3 Qg7 Qh8 Qf7 Ng5 Qfc4+ Qd4 Qc7 Ne6 Q4c5 Qd6 Nd4 Qbb8 Nb3 Qbg8 Rb1 Qgh7 Rb2 Bb1 Rc2 Bc8 Qb5 Bd7 Rc6 Bc2 Qc5 Ng5 Bg6 Bh3 Bf5 Ne6 Re4#
1R3b2/5p2/1NQb1rnN/1q1R1n2/qp2K1Rk/B7/3QBqB1/b1q1nbQ1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 h4 exf4 g3 b5 Qd3 g5 Qd2 Ra6 Qd1 Rg6 Rh3 g4 Rh1 Rg5 hxg5 fxg3 Kd2 Ke7 Kd3 d5 c4 h5 e4 b3 a4 g2 e5 h4 a5 b2 g6 g3 a6 h3 g7 h2 a7 Bh3 a8Q Na6 e6 Kf6 c5 Rh6 e7 Qb6 e8R Nb4+ Ke2 d3+ Ke3 Kg5 Qaa4 d2 Qe1 d1Q Be2 d4+ Kf3+ Kh4 c6 d3 c7 d2 c8Q Ne7 g8B Qf2+ Ke4 Rf6 Qc7 Nc2 Qca5 Ng6 Na3 b1Q Nc4 b4 Ba3 Qdc1 Qa7 d1Q Qd2 Ne1+ Qac2 Qb3 Bh7 Qa4 Nb6 Qb5 Qc6 Qda4 Rb8 Bd6 Bf3 Bf8 Ne2 g1B Nd4 Bf1 Be2 g2 Nf5+ Kh3 Ra2 Qg3 Rc2 Nh4 Na8 Bgc5 Rg1 h1N Kd5 Bcd6+ Rc5 Qf4 Qab6 Ng3 Nh6 Qf3+ Be4 Ng6 Kd4 Kh4 Rd5 Qf4 Qbc5 Qf5 Nb6 Qf4 Re5 Nf5+ Kd5 Qg3 B4f3 Qh2 Ke4 Qg3 Rd5 Qh2 Rh1 g1B Qcd4 Be3 Rg1 Qg3 Qdc5 Bd4 Rg2 Bb2 Qg1 Qf2 Rg3 Bd4 Bg2 Ba1 Rg4+
1k2r1Q1/3b1Nn1/1p5R/b5KR/1qqn1BR1/2rppq1Q/Br2N3/2n1QB2 b - - 0 1 legal: proof: h4 f5 e4 c5 exf5 a5 b4 axb4 d4 cxd4 a3 bxa3 Qd2 g5 Qd1 gxh4 Ke2 d5 Kf3 Kd7 Kf4 Kc7 c4 h5 g4 e5+ Kf3 d3 c5 d4 c6 e4+ Kf4 a2 g5 e3 f3 d2 g6 h3 f6 h2 f7 b6 g7 d3 Nh3 h4 Qe1 d1Q Ng5 h3 Qf2 Qd5 Qe1 Nh6 g8B Q1b3 Bb2 Bb4 f8Q Ra3 Nc3 Bd7 Ne2 Nf5 Nf7 Qdc4+ Kg5 Ng7 f4 Ba5 f5 Qbb4 f6 Rc3 Rg1 h1Q Rg4 h2 Rb1 a1N Qe8 Rc2 Be5+ Qd6 Bf4 Qf3 Rb3 h1R Rb5 Nb3 Qe6 Kc8 c7 Rb2 Qf5 Kb7 c8R Qdb4 Rc6 Nc1 Qh7 Ka7 Qh3 Ka8 Re6 Nc6 Nd6 Rh2 f7 Qg2 f8Q+ Ka7 Kg6 Qd4 Ng3 Qf3 Rh5 Rhc2 Ne2 Rc3 Kg5 Qde4 Qf7 Kb8 Reh6 Qed4 Qa2 Qdc5+ Qd5 Nd4 Bf7 Qc7 Qe6 Rc8 Qe8 Rd8 Ba2 Qcc4 Qg8 Re8 Nf7+
b1B1b3/Q5Rn/r3Bp1N/b2r1np1/3b1nKR/B1N2NQQ/6p1/3r2kq b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 g4 h5 f4 hxg4 c3 dxc3 Qa4 exf4 Qb3 Bd6 Qd1 Bf8 Kf2 Ke7 e4 Ke6 h4 Ke5 b4 a5 b6 g5 b7 d5 b5 a4 h5 d4 b6 c2 h6 f6 h7 d3 Rh2 Kd4 e5 g3+ Kf3 d2 e6 a3 e7 a2 e8B g2 Rh5 Bb4 Na3 Nd7 b8N Ra6 b7 Nh6 Bd3 Ba5 Qf1 d1R Rh2 Nf5 Qe1 Nf8 Kg4 f3 Bc4 f2 Nb1 f1B Ba3 c1N Be6 Nd3 Rh4 Nf4 Nd7 Bb5 b8Q Bb7 Qg3 Ba8 Nf3+ Ke3 Nde5 Rg8 h8Q Nh7 Bg6 Be8 Nc3 Qe7 Rb1 a1B Rb7 Qf8 Bgf7 Qh6 Bc8 Rg7 Bd5 Rd7 Be6 R7d5 Rg7 Bb2 Nf7 Ba1 Na4 Bd4 Qa7 Ke2 Nc3+ Kf1 Ne1 Qg6 Nh6 Kg1 Qh3 Qf7 Qf8 Qc7 Qd6 Qc4 Qe5 Qf1 Nf3+ Kf2 Ne1 Qh1 Qee3+ Kf1 Qeg3 Kg1 Nf3+
B1nr4/1BN1p1p1/b1bRr1q1/2Q5/3Q2BK/2nR2NR/1k2p2r/1Q1b1rn1 b - - 0 1 illegal: No possible last move
2bk4/1B6/RNN3bQ/1bp2Rq1/2r1pbR1/Kp1q2Qn/n5rB/bNB5 b - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a5 Qc2 axb4 Qb3 Ra5 Qd1 Ra8 h4 g5 e4 gxh4 a3 bxa3 Rh2 fxe4 Rh3 Bg7 Rh1 Bf8 d4 e5 Kd2 h5 Kc2 b5 Kb3 c5 f4 e3 g4 h3 f5 h2 f6 b4 g5 h4 d6 h3 g6 a2 g7 e2 d5 e1Q Nd2 Qe3+ Kb2 b3 Qe1 Ra4 Ngf3 Rc4 Ka3 Na6 Nb1 Ne7 g8R Qg5 Qg3 Nb4 Bg2 Ng6 Nfd2 Nf4 Rf1 h1B f7+ Kd7 Rg6 Bh6 f8Q h2 Rf2 Nh3 Rf5 Rg8 Qg7+ Qge7 Rg4 Bf4 Qh6 Qg5 Be4 Ke8 d7+ Ke7 Bf3 Bg2 Be4 h1B Bf3 Rg6 Be4 Bf1 d6+ Ke6 Bb7 Be4 Nc3 Bfd3 Ndb1 Bc6 Nd5 Bb5 Rf7 Bf5 Nb6 e4 Rf8 Qde7 d8B Qd7 Bc7 Qdd8 d7 Ke7 Nc3 Rg8 Be5 Bg6 Rf5 Rg7 Bd4 Rg8 Bg1 Rg7 Bh2 Rg8 Rb1 a1B Rb2 Na2 Nb1 Qe8 d8N Qd7 Rf2 Qd3 Nc6+ Ke8 Nb8 Kd8 Rf6 Bfe5 R2f5 Bf4 Nc6+ Kc7 Nd4 Rd8 Qe3 Qe2 Qg3 Rd6 Nd7 Kd8 Re6 Rd5 Ra6 Qf3 Nc2 Rd2 Nd4 Rg2 Nb6 Qd3 Nc6+
B5b1/2NnnB2/1Qp1Nnqk/2p1p1r1/Q2qq2b/6R1/qr6/Q1RR1K1N b - - 0 1 legal: proof: f4 b5 e4 f5 c4 g5 a4 d6 c5 dxc5 b3 fxe4 axb5 h6 g4 Be6 Bb2 Bd7 Bf6 gxf4 g5 Be6 g6 Bc8 Bg5 hxg5 h4 a5 d4 e3 d5 e2 g7 Kf7 b4 Kg6 h5+ Kh6 d6 g4 b6 a4 b7 f3 d7 g3 b5 g2 b6 a3 Nc3 a2 Rc1 a1Q Qa4 Ra5 Nh3 g1Q Nd5 Qa2 Nf2 Nf6 g8B Qg6 Bf7 e5 Bg2 Rb5 Rf1 Rb2 Nh1 Be7 Kf2 Rb1 Rfd1 Rg8 Kg1 Rb2 Kf2 e1N+ Kf1 f2 Bf3 Nc2 Bg2 Kh7 h6 Nd4 Bf3 Nf5 Be4 Qe8 d8N Nbd7 Ne6 Qd8 b8Q Bb7 Qba8 Rg7 Nb4 Bd5 Na6 Bb3 Bb7 c6 Qa7 Bd5 Ba8 Rg8 b7 Rg7 Nec7 Be6 b8Q Bb3 Be8 Bg8 Bf7 Qg4 Qa5 Qa1 Bh5 Ne8 Bf7 Qe4 Nb5 Qc7 Qbb6 Qd6 Nd4 Qab1 Qa1 Qa2 Ne6 Qdd4 Nac7 Bf6 Nd8 Ne7 Nde6 Bg5 Qa4 Nef6 Nd5 Bf4 Ndc7 Bg3 Rd2 Rg4 Rdd1 Qg6 Kg2 Rg5 Nf8+ Kh8 h7 Kg7 h8R Qde4+ Kf1 Qd4 Rh2 Bh4 Rg2 Kh6 Nfe6 Qde4 Rg4 Qd4 Kg2 Qde4+ Kh2 f1Q+ Rg2 Qb5 Kg1 Qbb4 Kf1 Qbd4 Rg3
r2B1RB1/Q1p2qr1/3p1R2/2b1q3/1R1pq1Q1/B3b3/1qn1Kn2/k2Q1rNN b - - 0 1 legal: proof: c4 b5 b4 g5 d4 a5 e4 f6 h4 gxh4 e5 fxe5 Qe2 exd4 Qd1 Ba6 Bh6 axb4 Bc1 b3 Nf3 b4 Ng1 Bb5 cxb5 Ra6 Bg5 Ra3 Bc1 Ra8 f4 Kf7 a4 Ke6 g4 Kd5 b6 h5 g5 e5 g6 h3 a5 e4 a6 h2 b7 e3 f5 h4 g7 h3 f6 e2 a7 Kc4 f7 b2 Bf4 b3 Kf2 Rh7 Qd2 Nc6 b8R Qg5 Qa5 Nh6 g8Q Qe5 Rb6 Rg7 Qd2 Nb4 Rd6 Ng4+ Kf3 Nf2 Bh6 Nc2 Rf6 Bc5 Nc3 b1R Bg5 b2 Ne4 Kb3 Ra4 e1B Rb4+ Ka2 f8B+ Ka1 Qd1 Bd2 Ng3 Be3 Bc4 Rc1 Ba2 b1Q Ke2 Qb2 Qe6 Rb1 Qg4 Rc1 Be7 d6 Bd8 Rb1 Bg8 Rc1 Nf3 Rb1 Rf1 h1Q Ng1 Qhd5 Nh1 h2 Rf8 Nd3 R1f6 Qf7 Bh4 Rc1 Be1 Nf2 Bd2 Rb1 Bc1 Qc3 Ng3 h1Q Ba3 Qhe4 Nh1 Qcb3 Qc1 Qb2 Qd1 Rb8 a8Q Rc8 Qb7 Ra8 Qa7 Rc1 Qd2 Rf1 Qd1+
rk1qq3/p4NKp/Rqbp4/Q4BQ1/1B6/n5R1/1Q1qNNB1/bbr1n3 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 f5 Kf3 h3 e4 c2 b4 d6 g4 Kd7 g5 Kc7 g6 h2 b6+ Kb7 g7 Qc7 b5 Qe7 e5 Nf6 g8N Bg7 e6 Nd5 Nd2 Nb4 Ra6 Nd7 Ne2 Ba1 Ne4 Nc5 Bd2 c1Q Qa4 Ncd3 Rg1 Nc2 Rg3 Na3 Nh6 h1Q+ Bg2 Qhg1 Qd1 Qf6 e7 Bd7 Qe1 Rhc8 e8B Qc6 Qc1 Qd8 Bg6 Qd1 Nf7 Ne1+ Kf2 f3 Ke3 f2 Kf4 Qc5 Qb2 Qe8 Kg5 f1Q Kf6 f4 Bb4 f3 Kg7 f2 Nh6 Rc6 Nf7 Kc8 b7+ Kc7 Rg4 Qd2 Rg3 Bf5 b8Q+ Kd7 Neg5 Bb1 Qb6 Kc8 Ne4 Qcg5 Qe3 Qgd8 b6 Rc1 Qg5 Qg1 b7+ Kc7 Bf5 f1B Bf3 Qc5 Nf2 Bh3 Bh1 Bg4 Bg2 Bf3 Bg6 Bc6 b8Q+ Kd7 Qb5 Kc7 Qa4 Qb6 Qaa5 Kb8 Bf5
n2BbKQ1/q3r3/3n1R1k/b7/b1B1RN2/1Nq2pp1/bpQ3b1/B1Rn2N1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Nd2 Ra7 Nb1 Rb7 Ra3 axb4 Ra1 b3 Ra3 b4 Ra1 Rb5 axb5 Rh7 Be3 Rh5 Bc1 Rh8 Kf2 f5 e4 Kf7 h4 Kg6 c4 d5 c5 d3 h5+ Kh6 b6 g5 e5 f3 Ke3 b2 Kd4 d2 e6 f2 Ke5 b3 b7 g3 c6 g2 c7 g4 e7 d4 e8N d3 Na3 b1B Nf3 g1Q Nf6 f4 Ra2 g3 Qc2 d1N Nd5 d2 Nc4 Bb4 Na5 Bd7 c8Q Be8 Ke6 Qc7 Bc4 f1B Ra4 Nd7 b8R Qga7 Rb6 Ba2 Ng1 f3 Nf4 Bg2 Ba3 Bc3 Be7 Ngf6 Bd8 Ne4 Ke7+ Nd6 Qa8 Qc8 Qd5 Qcc7 Qg8 Qc5 Rc6 Nb6+ Kf8 Na8 Rb6 Rh7 Rab4 Bg6 Ra4 Re7 Rab4 Kg5 h6 Qcc7 h7 Qc5 Nh5 Kh6 h8B Be8 Ra4 Bb4 Ba1 b2 Nb3 Ba5 Nf4+ Qh5 Ngh3 Qe5 Re1 Qc3 Ng1 Nf2 Rc1 d1B Qe2 Bc2 Ra6 Nd1 Rb4 Bcg6 Qc2 Ba4 Rab6 Ne4 Re6 Nd6 Re4 Bge8 Rb5 Qc7 Rf5 Qa7 Rf6+
6K1/R1q1N1NQ/Q1rBpQ2/q3n1Rp/k1B2r2/b2n4/qp4r1/N1q3qB b - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 d4 fxe4 f4 c5 Na3 cxd4 Nb1 b6 f5 Ba6 f6 gxf6 h3 Be2 g5 Bg4 hxg4 f5 Rh4 f4 Rh5 Ra7 Rh1 Ra8 Kf2 h5 c4 d5 a4 Kd7 g6 Kc6 g5 b3 a5 d3 g7 e3+ Kf3 b5 c5 d4 Ke4 b2 Ke5 d2 Ke6 b4 Kf7 e6 g6 b3 a6 f3 a7 d3 Ra3 Kb5 c6 e2 c7 e1Q c8B f2 Bb7 Nf6 g8Q Na6 g7 Ng4 Qh7 Rc8 g8N Nc5 a8Q Rc6 Qf3 d1Q Ne2 d2 Ra7 Nd3 Ng3 Ba3 Qf6 Qc7+ Ne7 Rg8 Nf5 Qde2 Rh2 d1Q Ng7 Qea5 Bf4 Qc1 Nd2 b1Q Rg2 Ka4 Bd6 b2 Rg1 Qe3 Nb3 Qa2 Na1 Qee1 Be2 f1R Qc8 Rf2 Ba8 Rf5 Qa6 Rf4 Rg3 Qg1 Rg2 Ngf2 Rg5 Ng4 Bf1 Rc3 Bh1 Rc6 Ne8 Rg6 Ng7 Nge5+ Kg8 Nb4 Rf5 Rg2 Bc4 Nbd3 Rg5
2R3n1/5Q1q/6N1/KQ1p1r1p/R1Q3NR/q1B4n/kb2Bbp1/2Bnqbn1 b - - 0 1 legal: proof: g4 b5 e4 f5 h4 fxe4 d4 c5 f4 cxd4 b4 a5 f5 axb4 h5 Qc7 h6 Ra6 g5 Rf6 gxf6 Qf4 Rh2 Qxh6 Rh1 Qh2 a4 Kf7 c4 h5 c5 g5 c6 e5 a5 g4 a6 g3 c7 d3 a7 b3 a8R e3 Bd2 g2 Ba5 e2 Kd2 e1B+ Ke3 e4 Kd4 d2 Kc3 b2 Ra4 b4+ Kb3 e3 Nh3 e2 Bb6 Bg7 Ra2 Qg3+ Ka4 b3 Ba7 Bf2 Ng1 e1N Bd4 Nc6 Bc3 Nce7 Ka5 Nd5 Be2 Ba6 c8Q Nf3 Nh3 Nf4 Na3 b1Q Qf1 d1N Nc2 b2 Ra4 Ng1 Ne3 Qd3 Qc7 b1Q Rc8 Qb2 Qb7 Qa3 Qb5 d5 Ng4 Qge3 Bf3 Qe1 Rh2 Qc2 Qfc4 Rh6 Rh1 Rg6 Be2 Rg5 Rc7+ Kf8 f7 Bh8 Rc6 Ke7 Rc8 Kd6 f6 Qh7 Rh2 Rf5 f8Q+ Qe7 Qfe8 Qh7 f7 Bf6 Bd2 Bb2 f8B+ Ne7 Bg7 Ng8 Qb7 Bb5 Bgc3 Ba6 Bc1 Bb5 Ng5 Nfh3 Nf3 Ba6 Nfe5 Bb5 Qef7 Ba6 Re8 Bb5 Qb3 Kc5 Ng6 Ba6 Bb4+ Kd4 Rc8 Bd3 Qb5 Bc4 Bf3 Bf1 Be2 Nf4 Rh4 Nfh3 Qa2 Ng5 Kb6 N5h3 Bc5+ Kc3 Ka5 Kc2+ Bb4+ Nc3 Qac4 Kb1 Qfc7 Nd1 Bc3 Ka1 Qf7 Kb1 Qcc5 Ka2 Qcc4+
4kB2/1b2p2Q/2R5/3b1RNQ/2p1nnq1/R2q2b1/NrQp1B1b/KN2qn2 b - - 0 1 legal: proof: e4 b5 h4 f5 b4 fxe4 c4 bxc4 b5 g5 b6 gxh4 Be2 a6 Bd3 Bb7 Bf1 Bc8 d4 c5 Rh3 c3 Bb5 axb5 Rh2 c4 Rh1 Ra7 Rh2 Rc7 Rh1 Rc5 dxc5 Bb7 Bd2 Ba6 Bc1 Bc8 a4 h5 g4 d5 f4 b4 b7 d4 f5 d3 a5 h3 a6 h4 c6 c2 Kd2 h2 g5 e3+ Ke1 h3 f6 b3 c7 b2 g6 e2 Kd2 Qd7 Kc3 e1B+ Bd2 c1Q+ Qc2 Bg3 a7 Na6 a8Q Nc5 b8N Qg4 g7 Ne6 Be3 d2 Na6 Nf4 Nb4 Qe1 Qf3 Bb7 Na2 Rh5 Qfd1 Rb5 Nf3 Bd5 Rf1 h1B Bd4 h2 Ng5 Bhe4 Qe2 h1N Bf2 Bb7 Qf3 Bed5 Qfd1 Bh2 Qf3 Ng3 c8R+ Kd7 f7 Nf6 g8Q Bh6 f8B Nfe4+ Kd4 Rb4 Rc6 Ke8 Qh7 Rb5 Nc1 Rb4 Ra3 Rb5 Na2 Rb6 Nbc3 b1Q Qh1 Rb2 Qf3 Qbd1 Nb1 Qf5 Qg4 Qg6 Qh5 Qg4 Rg1 Nf1 Rgg3 Nd3 Rf3 Bg3 Rf5 Bh2 Nf7 B6f4 Ng5 Bfg3 Rc5 Nf4 Rc6 Nc5 Kc3 Rb4 Qb3 Ne4+ Kb2 Rb6 Ka1 Rb5 Qc2 Rb2 Q5h6 Qd6 Ra7 Qa3 Qh3 Qaf3 Ra3 Qd3 Q3h5+
1r3n2/k2B1Rq1/R7/r1pK1B1r/1R1N2b1/2bQ3r/p1Nrb1p1/1B3rNQ b - - 0 1 legal: proof: d4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 g6 hxg6 Qc2 g5 Qd1 g4 f4 Bd6 e4 Qd7 d5 Nc6 f5 Qd8 Be3 Bf8 Bd4 exd4 e5 Qd7 Bd3 Nd8 Bf1 Ne6 fxe6 Qd8 Ke2 a5 b4 g5 h4 f5 d6 c5 b5 d3+ Ke3 g3 b6 g4 h5 a3 b7 g2 b8Q d2 h6 g3 e7 Kd7 e6+ Kc6 e8B+ Qd7 e7 a2 h7 c3 Rh5 f4+ Ke4 a4 Qbb3 f3 Ke5 c2 Qc3 Kb7 Qc1 d1B Nh3 g1R Nf2 a3 Nh3 f2 Rf5 g2 Kd5 Bg7 Qd3 Rh1 Ng1 Bc3 Bg6 Rb8 e8B Qg7 d7 Be2 d8N+ Ka7 Ne6 Rh3 Bd7 Rh5 Qe1 c1R Nd4 Rc2 Qed1 Rh3 Rf7 Rd2 Bgf5 Nf6+ Kc6 Rf8 h8R Nh7 Kd5 Rg8 Qc1 Nf8 Rh4 Rh8 Re4 R8h5 Rf4 Bg4 Be2 f1R Bf3 Qf6 Be4 Ba6 Qe1 Qg7 Qh4 Rg3 Qh1 Rgh3 Nc2 Rdf2 Nd2 Re2 Ndf3 Rd2 Nfd4 Bb5 Rb1 a1R Rb4 Ba6 Qf3 Be2 Qd3 a2 Rf2 Rab1 Rf3 Rb3 Re3 Ra3 Rg3 Bgf3 Rg6 Ra5 Rd6 Bg4 Rdb6 Rb5 Ra6+ Kb7 Qg3 Rf4 Na1 Rf3 Bb1 Rf1 Re6 Ka7 Nc2 Ra5 Qd3 Ra3 Rh6 Ra5 Ra6+
r2R2n1/4B3/3p1pBb/1p1Q1B2/1pk4N/1rnn1NK1/q1b2QN1/Q1R1nr2 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 c5 gxh4 c6 Ke7 d5 Kf6 cxd7 Ke7 d6+ cxd6 Kf2 Ke6 g4 h5 a4 b5 e4 h3 g5 h4 a5 f3 e5 h2 g6 h3 g7 Nh6 g8Q Nf5 a6 Nh4 a7 Bh6 Qe2 Kd5 e6 Ng2 e7 Ne1 e8B Nc6 Nd2 Qa5 d8N Ne7 Kg3 f2 Ngf3 Qa2 Nh4 Bf5 Ndf3 Bc2 Ne6 f6 Bg6 Rh7 Nf4+ Kc5 Qge6 Ng8 Nfg2 Re7 Qf7 Re3 Rb1 Rb3 Qd5+ Kb6 Rg1 h1R Qed2 h2 Bfd3 f1N+ Kg4 Rc3 Qf2+ Ne3+ Kg3 Ra3 Bdf5 Rb3 Qe5 Kc6 Qa1 Kc5 Bd2 Kd5 Rc1 Nd1 Be3 Kc4 Bb6 Nc3 Bd8 Nd3 Rge1 Rf1 Re8 Ne1 Be7 h1N+ Kh3 Ng3 Rd8 Nh5 Kg4 Nf4 Kg3 Rc8 a8Q Nfd3 Qb7 Ra8 Qd5+
2rb1Q2/2nN1R2/1B2bNp1/R6Q/K2b1Npq/Q7/1p1brpbq/R1k3B1 b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Nh4 h5 Bg2 Nc6 Nf3 Nce7 Ng1 f3 Bf1 f4 Bh3 Nf5 gxf5 Ra7 Bg4 hxg4 Qb3 Ra6 Qd1 Ra8 h4 Ke7 e4 Kd6 d4 c5 Kd2 b5 Kc2 g6 a4 f2 a5 f1Q d5 Ke5 d6 f3 d7 c3 Kb3 c2 h5 Qf2 h6 Be7 h7 Nf6 a6 Qh2 a7 Nd5 f6 Re8 h8Q Nc7 Nd2 Kd4 f7+ Kd3 f8N f2 e5 Bb7 e6 Bg2 Ne2 Rc8 a8R Bg5 Bb2 c1B Ne4+ Bcd2 e7 Bf6 Qh4 Bd4 Nf6 Ke3 Qc1 c4+ Ka2 b3+ Ka3 c3 Qh5 b4+ Ka4 c2 Ra5 Kd3 Nf4+ Ke3 Ba3 b2 Ra2 b3 Bd6 b1B Qa3 c1B Be5 Bcb2 Rc1 Bf5 Rc2 Na6 Rc7 Be6 Bd6 Bbc3 Ra7 b2 Be5 Qb6 d8B Nc7 N8d7 Qc5 Bd6 Qg5 Rb7 Qgh4 Be5 Rh8 e8Q Rh7 Qef8 Re7 Nd3 Ke2 Nf4+ Kd1 Rba7 Kc1 Rb7 Na8 Bb6 Nc7 Qe8 Bb4 Qf8 Bed5 Nh3 Q2g3 Nb8 Nb5 Bd6 Re2 Rf7 Nc7 Nbd7 Be6 Be5 Be7 Bf4 Qc3 Bh2 Bd8 Bg1 Qcg3 Nf4 Qgh2 Ra1+
1b1RR3/kNB3Qp/NB1p2B1/b4R1Q/1q1Nbp2/np3q2/q2b3K/r6n b - - 0 1 illegal: No possible last move, all moves rejected
RK4k1/n1Nr1R2/4Q2Q/2b1N1n1/p3q2B/2pRpp2/rn2p2Q/2N1Bb1q b - - 0 1 legal: proof: c4 d5 f4 dxc4 e4 h5 g4 hxg4 a4 b5 axb5 f5 Be2 fxe4 Bf3 gxf3 Kf2 Kf7 Kg3 a5 d4 e5 h4 g5 b4 c5 d5 e3 d6 e2 d7 e4 f5 c3 f6 c4 b6 c2 b7 c3 b5 g4 Kf4 Ne7 Ke5 Rh5+ Kd6 Nbc6 b8Q Nb4 b6 Rc5 b7 Bh6 h5 Ng6 Bd2 c1N Qb3+ Nd5 Be1 Nf8 Na3 Nh7 Nb5 Nd3 Nc7 Qe8 d8B Be3 h6 Ng5 h7 Nb2 h8Q Be6 Qh5+ Kg8 Qh6 Nb6 Ra4 Bf7 Qe6 Re5 Ra1 a4 Rd1 Ra7 Rd3 Qe7+ Kc6 Nc8 Rh5 Qb4 Rh1 Bc5 Rh5 Nh3 Rf5 Ng5 Rf4 Ne7+ Kd7 Nc6 Kc8 Qc4 Qa8 Rd5 b8R Rb7 Qa7 Rd7 Ra8 Rb5 Qb6 Na7+ Kb8 Rb3 Qe5 Ra3 Qbe6 Ra2 Rf5 Qd5 Qeh2 Qc6 Nh3 g3 Nf2 g2 Rf4 g1Q Rf5 e3 Rf4 Nh7 Be7 Kh8 Bd8 Be8 f7 Qh1 f8N Qe4 Rf7 Kg8 Bh4 Ng5 Ng6 Ba3 Ne5 Bc5 Rh7+ Bf7 Qg4 Be6 Rf7 Qh7 Qc4 Bh3 Qce6 Bf1 Ne4 Ra1 Nd2 Qe4 Nb3 Ra2 Nc1
1qn5/3r4/2r5/Br1nppK1/1QNNQ1QR/2b3pB/k1bBp2p/qR5R b - - 0 1 illegal: No proof kernel
RKRN4/N1p1Q1b1/Q3pn1B/q1p2bNp/q7/qb2R1k1/p4n2/1Q2B2r b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 bxa4 c5 g6 f5 d6 f6 dxc5 h4 a5 g4 Bh6 g5 Na6 Bh3 Nb8 Be6 Bf8 Bf5 gxf5 h5 Nh6 Na3 Rg8 Nb1 Rg6 hxg6 Ng8 Kf2 Qd4+ Ke2 Qd8 Ke1 Qd6 Ne2 Nc6 Rg1 Kd8 Kf1 Bd7 Nd4 Nh6 Na3 Bg7 Ndb5 Rc8 Nd4 Nb8 Ke1 Be6 Qf3 Kd7 Qe2 Rh8 Nf3 Bf8 Rh1 Ng8 Qd1 Ke8 Nb1 Qd8 Ng1 Bc8 Kf2 Kd7 Ke3 Kd6 d4 h5 b4 a3 f7 a4 b5 a2 g7 a3 b6 Nh6 g8Q Bd7 g6 Bc8 d5 Ke5 g7 Be6 b7 Bd7 d6 Qe8 Qh7 Rg8 Bd2 e6 Nh3 Ba4 d7 Bb3 d8N Qa4 Ng5 Nd7 b8Q Nf6 Qb5 f4+ Ke2 e3 Kd3 f3 Re1 Kf4 Nc3 f2 Qa6 Kg3 Qb1 e2 Nb5 f1B Na7 Nhg4 Kc3 Bd6 f8B Be5+ Kd3 Bh3 Bb4 Rh8 g8R Bd4 Qe7 Nf2+ Kd2 Bf5 Bh6 Nd5 Re8 Bg7 Ba5 Nf6 Kc3 Rf8 Bb4 Bd1 Kc4 Rf7 Ndc6 Bdc2 Rc8 Bd1 Nd8 Rf8 Rh1 e1Q Rh4 Qe3 Re4 Qa5 Be1 Ba4 Nb7 Rd8 Re5 Rd1 Nd8 Qf3 Re3 Bac2 Bb4 Rh1 Be1 Qd2 Kb5 Bb3 Qe4 Qa5+ Kc6 Qa4+ Kb7 Qa5 Rd1 a1Q Kb8 a2 Qc2 Qd4 Qb1 Qda4 Rdd3 Bd5 Ra3 Bb3 Re2 Qfc3 Re3+ Kf4 Kb7 Qc1 Qad3 Qd7 Qe2 Qac3 Kb8 Q1b2 Ra6 Qa3 Nac6 Qca5 Ra8 Qd4 Qb5 Qda4 Qa6 Kg4 Na7 Kf4 Nf3+ Kg3 Ng5+
r1bK1BB1/3BpQn1/2R1p3/2Qk1b2/3Np3/Qr2pb2/3b1q1p/1Nr1RR2 b - - 0 1 illegal: No proof kernel
2R1BK2/4pBn1/1Nr1N2r/4R2q/1b1pRp2/pp2pk1Q/6qq/1N1nB1Q1 b - - 0 1 illegal: No proof kernel
1N1K1Q2/4rR2/nrNB4/bBn1q3/r1Rn1B1Q/1n4Q1/1nn1N2b/1k1bq2q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 c6 b3 e5 b4 h6 b2 h7 b3 c7 Qe7 e6 Na6 Qe1 d1Q Na3 b1N Bd3 b2 Rh5 f3+ Kh1 f4 Qf2+ Kc3 Nc2 d4 Rf5 g2+ Kh2 g3+ Kh3 Nd2 Kg4 b1R Bc4 d3 Qf1 f2+ Qe2 f1N Rb5 f3 Kf5 f2 Na3 Nb3 Ra2 d2 Nc2 Qe1 Rb4 d1N Qh5 Nb2 Qh4 Nf6 Bb5 Ne4 Bf4 Nec5 Nd4 Ne3+ Ke5 f1Q Nc6 Kc2 Nb8 Bh6 Ne2 Re8 h8B g1N Rd4 Qd6+ Kf6 g2 Re4 Bd7 c8N Nf3 Ne7 g1B Nec6 Re7 Bg7 Nfd4 Bf8 Bh2 Ra4 Ra1 Rc4+ Kb1 Re5 Ra4 Rf5 Nec2 Qg3 Re8 Kf7 Qg1 e7 Qh1 Rf6 Bg4 Qh4 Rd8 e8Q Qe5 Bd6 Rd7+ Qe7 Rb7 Ke8 Rb6 Rf7 Bg5 Qe6 Bd8 Qee7 Bc7 Qg3 Bd8 Nd7 Rc8 a8Q Rc7 Ndb8 Ra7 Ng1 Bd1 Ne2 Nb7 Kd7 N7c5+ Kc8 Rab7 Qf8 Re7 Qb7 Re6 Qbe7 Bc7 Qeh4 Re7 Nd8 Rb7 Ndc6 Ba5 Qgg4 Rb6 Kd8 Ra3 Qgh3 Ra4 Q3g3
1rr2nnR/n2Bk1nr/K1bN2r1/4NQ2/Nb2rBr1/q5R1/4BnQ1/1Q5r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 Kd3 h5 c4 f5 e4 d5 a4 h3 g4 h2 a5 f3 g5 f4 c5 h4 e5 f2 g6 b3 a6 b2 e6 h3 c6 f3 g7 b4 a7 b3 c7 Rh4 e7 Rg4 Be2 f1N Ra2 f2 Bf4 Bb7 c8Q Ne3 Na3 b1N Rb2 f1R Ra2 b2 Bc7 Rf6 Qc1 Bc6 Bd6 Nf5 Bf1 Nd7 Qc5 Nc3 Nb5 b1R Be2 Rfg6 Qb7 Rc8 a8B Qa5 Na7 Nb5 Qc3 Qa3 Nf3 Rb4 Rg1 h1R Rg3 h2 Bf4 Re1 Ra1 h1R Ne5 Rh7 Rd1 Reh1 Rb1 Rb8 Nc8 Na7 Nb6 Rc8 Na4 Rb8 Kd2 d3 Qc5 d4 Rf1 Rc4 Qb1 R1h4 Rh1 Rc2+ Ke1 d2+ Kf1 d1N Rhh3 Bb5 Bc6 d3 Ke1 Rc4 Kd2 Nf2 Qd5 Re4 Qe6 Rh8 Rh2 R4h7 Qf6 Qa2+ Kc3 d2 Qe6 d1R Rh1 Nf6 g8Q Ng7 Qf5 Rg1 Qd5 Ng8 Rhh3 Rh1 Qd2 Re3+ Kb4 Qa3+ Ka5 Re4 Rh2 Ba6 Qd5 Bb7 Bcb5 Bc6 Ka6 Rc4 Qg2 Re4 Rh5 Nc5+ Ka5 Nce6 Ka6 Rc8 Nd3 Kd7 e8N Bb4 Nd6 Ke7 Ne5 Nf8 Rhh3 Bd5 Bd7 Bc6 Rh6 Rb8 Nd3 Nfe6 Bd1 Nf6 Be3 Rhc8 Bg5 Rhh8 Bf4 Nf8 Ne5 Ng8 Rh5 Rhh6 Be2 Rh8 Rg5 R8h4 Rh5 R4h2 Rh8 Rh3 Bf1 Rh7 Be2
1K3BqR/4N2q/r1b4Q/2b2kN1/3qr1r1/3Bb1RQ/RN1nnr2/r2nq2Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Ke6 h4 f5 a4 d5 c4 b5 e5 g5 c5 b3 c6 f3 Kg3 b4 a5 d3 c7 f2 a6 d2 h5 f4+ Kh2 g3+ Kh3 f3 Kg4 g2 h6 b2 a7 d4 h7 d3 Na3 b1R Bb2 b3 Qe1 d1Q Qe2 d2 Ra2 Bc5 Qa6+ Nc6 Qa4 Bd7 c8Q Ra1 Qb8 Nd4 Rh4 Bc6 Nc4 Ne2 Nh3 g1B Ba3 b2 Qbb3 b1Q Qa6 Qe1 Qd3 d1N Nb2 Be3 Bf8 Qd4+ Qe4 Re8 a8Q Re7 Qb8 Ra7 Qd3 Ra6 Qb6 Qc2 Kh5 g4 Kg6 g3 Rg4 g2 Rg3 Nf6 Ng5+ Kd7 Kf5 Rg8 Qh4 Ne4 h8N Nd2 Ng6 Rg7 Ne7 Rg6 Nh7 Rg4 e6+ Kd6 Ng5 Qb1 Kg6 Ke5 Kf7 Re4 Qh1 Kf4 Nd5+ Kf5 Ke7 Qc2 Kd6 Qb3 Qa5 Qb7 Qdc3 Qh7 e7 Rc1 Kc7 Qf6 Nh3 Bb6+ Kb8 Nd4 e8R Ra1 Rg7 Nc4 Qd3 Bc5 Qd8 Nd2 Be2 f1R Qe3 f2 Bd3 Ne2 Qd6 Qd4 Qdh6 Bh2+ Qd6 g1Q Be7 Bf4 Rh8 Qg3 Rgg8 Rg1 Bf8 f1R Qef3 Qgg7 Qe3 Bg5 Qh6 Rf2 Qg3 Be3 Qgh4 Ke5 Ne7 Qf7 Rg4 Qfg8 Ng5 Rgg2 Q4h3 Rg1 Rg3 Rgg2 Rf3 Rgg4 Rg3 Kf4 Ng6+ Kf5 Ne7+
N2rBn1q/2r5/qkn2bn1/R1Nb1R2/K2N4/1Bq2bQq/1R3bQ1/3qr1B1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 Kc6 a4 g5 c4 b5 Kc2 f5 Kb3 d3 c5 f3 e5 g3 e6 d4 a5 g2 h5 d2 a6 d3 e7 g4 e8R f2 h6 g3 h7 f4 a7 f3 Bb2 Nd7 Re3 Be7 Bd4 Nf8 Qc2 d1Q Rh3 d2 Bf6 Be6+ Bc4 f1Q Na3 f2 Rc1 Bd5 Bh4 Bf6 Re1 Ne7 Rh1 Rc8 Rb1 Rc7 Bg5 Neg6 Nh3 g1N Re4 g2 Nf4 Ne2 Ne6 g1B Be3 Qh3 Rf4 f1Q Rb2 Bf2 Rf5 Qa1 Qe4 d1B+ Nc2 Qa6 Rh2 Qe1 Qg2 Rg8 h8Q Kb7 Ra2 Nd4+ Kb2 b3 c6+ Kb6 Ra5 b4 Qg7 B1f3 Nc5 Ne5 Q7g3 Qc3+ Kb1 b2 Ka2 b3+ Ka3 b1R Ka4 b2 Bb3 Rcg7 c7 Re1 c8B b1Q Be6 Rc7 Bf7 Neg6 Be8 Nc6 Nd4 Qd1 Qe5 B2h4 Bg1 Bf2 Qf4 Qdc8 Qfg3 Qh8 Rh4 Qd7 Re4 Qdh7 Re2 Qh3 Ra2 Rgg7 Re2 Rgd7 Rb2 Rd8 a8N+
rRbqR3/2n2b2/6B1/4B1Nr/3B1R2/brbK3N/2QQr1bk/1Nbr1nn1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 a4 b5 h4 d5 a5 f5 a6 g5 c5 g3 a7 f3 c6 Kf4 h5 f2 e5 g2 c7 Kg3 e6 g4 h6 f4 e7 d3 e8Q f3 h7 d4 Na3 b3 Qc2 b4 Qb1 b2 Nh3 g1B Nc2 b3 Ng5 Nc6 Qe6 Ne5 Bg2 f1B Ra3 f2 Bc6 Bg2 Qf5 f1N+ Ke1 d2+ Ke2 d1B+ Ke1 d3 Nb4 Ne7 Qa2 b1R Bb2 Be3 Rh4 Bc1 Nc2 Nd5 Nh3 Kh2 Be8 g3 Bd4 b2 Rf4 Bh5 Rb3 Ba3 Bg6 Nf3+ Kd1 d2 Ke2 d1R Rb8 Re1+ Kd3 Re2 Qg5 Ng1 Qf5 Bd7 c8N Nc7 Nd6 Bc8 Ne4 Ra1 Qa5 b1R Qd2 Rb4 Qc4 Rb3+ Qcc3 Rab1 Neg5 Ra1 Be4 Bf7 Bg6 Rhe8 h8B R8e5 Nh7 Rh5 N7g5 Bcb2 Be5 Rd1 Ne3 Bc1 Nc4 Rde1 Qc2 Rd1+ Nd2 Nb5 Be4 Bh1 Bg7 g2 Rb7 Rb8 Re7 Nc7 a8R Be8 Be5 Bf7 Ra4 Ra8 Re8 Nf3 Rb4 g1B Rb8 Bf2 Rb5 Ng1 Rb8 Bg2 Bg6 Bh4 Ne6 Bhe7 Neg5 Bf8 Qb2 Bfb4 Qc2 Rde1 Nb1 Rd1+ Qd2 Ba5 Kc2 B5b4 Qb2 Bc3 Kd3 Na6 Qa2 Nc7 Qc2
KR1qb3/1Qb2bqR/3B1n2/BNN3Q1/br3Q1r/4Nn2/q2b2B1/3k1qnb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 c6 Ke3 e5 b3 e6 b4 c7 d4 e7 b2 e8Q+ Be6 c8Q b3 h6 d3 h7 Nc6 Rh4 f3+ Kh1 f4 Qe7 g2+ Kh2 f2 Rh6 f3 Kg3 Nd4 Ra4 Rb8 a8N Rb4 Qf6 Bf7 Qcf5 Bd6+ Kh4 g3 Kg5 Bc7 Ne2 g1N Nf4 g2 Na3 b1B Nb5 b2 Nb6 Bc2 Nd7 b1Q Ra7 Ba4 Nc5 Qa2 Rb7 Qd7 Qc6 Nf6 Ba3 Qd8 Qb1 d1B Nd5+ Kd2 Ne3 Ke1 Qd6 d2 Kf4 Qf8 Ke5 Qg7 Be2 f1B Qg5 f2 Bf3 Be2 Rh2 f1Q Rb8 Bec4 Qe4 Be8 Qb7 Bcf7 Bc6 Bf3 Rh6 Rg8 h8B d1Q Rh2 B3d5 Rh7 Ndf3+ Kf5 Qh6 Qdf4 Qf8 Bg7 Rh8 Bh6 Qg8 Bf8 Qg7 Bd6 Ne2 Bc1 g1B Bb2 Bf2 Bd4 Neg1 Bc3+ Ke2 Bd2 Be1 Bc3 Nh4+ Ke5 Bh1 Be4 Bd2 Bg2 Rb1 Ba5 Ke1 Ne6 Rb2 Kd4 Nhf3+ Kc5 Rb1 Qgf5 Rb4 Q5g5 Nd7+ Kc6 Ke2 Qa6 Nf6+ Kb7 Ke1 Nc5 Ke2 Rh3 Rh4 Qc6 Qda1 Ka8 Qd4 Qb7 Qd3 Be5 Qd8 Bd6 Ke1 Nc4 Kd1 Rh2 Rg4 Rh7 Rh4 Ne3+
2Bbqk1N/R1q3b1/2rn1N2/n1Q1B3/2r2nq1/b2RQ3/b3Qb2/b2BnK1N b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 b5 f4 g5 c4 d5 h4 e5 c5 e3 c6 e4 a5 e2 h5 g3 h6 b3 f5 g4 c7 g2 h7 b4 a6 g3 f6 b2 a7 d3 Ra6 b3 Rh4 d4 Re6+ Ne7 Rh3 Bg7 f7+ Kf8 Bf4 Nf5 Bd2 Nd6 Rh5 Qe8 Rhe5 Nc6 Qc1 Na5 Na3 b1Q Qd1 b2 Bc3 Qc1 Rg5 b1N Ree5 Be6 c8B Ba2 Rg6 Nd2 Bg4 Rc8 a8N Rc6 Nh3 g1B Nb5 g2 Bf3 Be3 Nf2 g1B Ba1 Bg5 Rd5 Bd8 Bg4 Bh2 Nh3 Nf3+ Kf2 d2 Nb6 d3 Bc8 Ne1 Be5 Qc2 Qc1 d1Q Qe3 d2 Rd3 Rg8 h8Q Qc3 Bf6 Be5 Qh5 Qcc2 Nd5 Ba1 Be5 Rc4 Qeh6 e3+ Kg1 Qc3 Nf2 Rh8 Qf4 Rh6 Nh1 Qa4 Qe4 d1N Nf6 Nb2 Bg2 Qcc2 Bf3 Qc1 Rg3 Rg6 Ra3 Nbd3 Bfg4 Nf4 Qh3 Ndb7 Nd6 Qad7 Rd3 Qc7 Qhg2 Qd1 Rh3 Qda4 Rh7 Qad7 Bh5 Qg4 Qd4 Nc2 Qb6 e1B Kf1 Bb4 Qe2 Ba3 Nf2 Ke7 Nh1 Qgd7 f8Q+ Ke6 Nf2 Qc5 N6g4 Bh8 Qe1 e2+ Kg1 Rf6 Qd1 e1B Nf7+ Qd6 Nh1 Bf2+ Kf1 Ne1 Qe3 Rg6 Rh6 Qc7 Qfc5 Bg7 Nh8 Rf6 Qb5 Ke7 Qbc5+ Rd6 Re6+ Kf8 Nf6 Qb6 Re7 Rc6 Qc2 Nd6 Bd1 Qg4 Ra7 Qc7 Qce2
3B1RQ1/n1N3qb/1bB2Bb1/b1n3n1/Qr2qnr1/KN4Nk/4r2R/Q4nr1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 d5 Kc2 f5 Kb3 b5 h4 g5 a4 d3 e5 d4 h5 g3 h6 f3 c5 f2 c6 g2 c7 g4 a5 g3 a6 d2 a7 d3 h7 f4 Ra2 Kf5 e6 f3 e7 Kg4 e8Q Nd7 Qe3 Qg5 Qc2 d1N Ra3 d2 Be2 f1N Rh2 Nb2 Ra5 d1B Qe7 Nc5+ Ka2 b3+ Ka3 Bf5 c8N Nd2 Qg7 Nbd3 Qgb2 Bg6 Qg7 b2 Nh3 g1B Qb7 g2 Bf1 b4+ Ka2 f2 Qf7 b3+ Ka3 Nf3 Qc3 Nf4 Qcg7 Bdc2 Qh6 Ne7 Nd2 b1Q Qhg7 b2 Bb5 f1N Nd6 Nc8 N6e4 Rg8 h8B Qf6 Ra6 Ng5 Ng3 Bd4 Rb6 g1R Bc6 Bc3 Rb7 Ba5 Rb8 Bh7 Qa2 Bcg6 Nb3 Qe4 Qa1 b1R Qf7 Qc3 Bf6 Bd6 Qc4 Bdc7 Qa4 Bcb6 Bd8 Qg7 Bb2 Re1 Be5 Re2 Bef6 Nd6 Rc8 Rb8 a8Q Kh4 Rc7 Kg4 Rf7 Nc8 Rf8 Rb7 Qb8 Na7 Qc8+ Rd7 Qa8 Rd4 Qb8 Rb4 Qa8 Nd5 Qb8 Kh4 Nf4+ Kg4 Ne6 Nf4 Rg2 Kh4 Nc7 Kh3 Rh2+ Kg4 Na6 Rh8 Bc7 Bg8 Rf7 Rh4 Qa8 B8h7 Qg8 Nd5 Rf8 Nf4 Rf2 Kh3 Bcd8 Rg4 Nc7 Qc2 Rg2 Qe4 Rh2+
q3N3/3kn3/1Bbnq1R1/2b4b/2Qnb1B1/bq3p1r/r1NK1Q1N/rQ1R1R2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 g5 c4 b5 e4 f5 a4 d5 c5 f3 a5 g3 a6 d3 h5 b3 c6 g4 h6 f2+ Kd2 f4 c7 g2 a7 b4 e5 d4 h7 g3 e6 b2 e7 b3 Ne2 g1Q Ra5 g2 Rg5 Kd7 e8R Nc6 Rg6 Ba3 Rh4 Bb7 c8N Nge7 Nbc3 b1B Na4 b2 Ng3 f3 Be2 f1R Nc3 Qf2 Rh1 g1B Nd6 Qb8 Qe1 Qe3+ Kd1 d2 Bd3 Qe4 Nd5 Qe6 Bf5 Be4 Nb4 b1B Bg4 Qd8 Nc2 Qc8 Rg7 Bg6 Rgg8 Bh5 Rg6 Rf2 Nf1 Qb8 Nce3 Be4 Nh2 Qd8 Qf1 Qc8 Qd3 Re2 Kc2 d1N+ Bd2 Bf2 Rf1 Nc3 Rf8 Bg1 Ne8 Nb5 Rf5 Rg2 Rd5+ Nd6 Kd1 Re2 Ba5 Ra2 Qb1 d3 Nc2 Bgc5 Kd2 Nd4 Bd8 Bc6 Bb6 Rf8 h8Q Qb7 Qh6 Rh8 Qf4 Qb8 Kc3 d2 Qe3 d1Q Qf2 Nb3 Rd3 Nd4 Rd2 Qe2 Rdd1 Qc4+ Kd2 Qb3 Rg8 Bf7 Rg7 Rh3 Rg6 Qd8 Rf6 Bh5 Rg6 Rb8 a8Q Rc8 Qa6 Ra8 Qe1 Ra7 Qc4 Qa8 Qg3 Ra1 Bc7 Bb2 Qg2 R7a2 Bb6 Bba3 Qf2
4r1b1/2k1qrQ1/1B1RRN2/n1b3q1/3b1Nb1/R1BNpn2/K1B4r/n2q1Qb1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 h4 e5 c4 d5 Kc2 Kd7 Kb2 b5 f4 b3 a4 b4 h5 g3 h6 e3 h7 g4 f5 d3 c5 g2 f6 e4 a5 d4 c6+ Kc7 a6 g3 f7 e2 a7 e1N Ra2 d2 Ra1 d3 Na3 Nf3 Rb1 Qg5 Qe1 d1R Be2 d2 Rh3 Na6 Rh2 Nc5 Qf1 Bg4 Rh6 Re8 a8R Ne7 Nh3 g1B Nf4 g2 Nc4 Re1 Ra5 d1Q Ra3 Bf2 Rf6 g1B Bd3 Be3 Ka1 b2+ Ka2 Bd4 Bc2 Nb3 Rd6 Na1 Ne5 e3 Ned3 Re2 Bd2 Rh2 Bc3 Rg8 h8Q Rg7 Rc1 Rgh7 Qg7 b1B+ Kb2 b3 Re6 Kc8 c7 Nc6 Rd6 Be7 f8B Ba2 Re6 Bb4 Bc5 Na5 Ba7 Bbc5 Rd6 Kb7 c8N+ Qe7 Nb6 Kc7 Nd7 Qg5 Qf6 Rf7 Qh6 Qe1 Rb1 Qeh4 Qg7 Qe7 Nf6 Qg5 Ra4 Bb6 Ka3 b2 Rc1 b1Q Rd1 Qd7 Re6 Bb3 Rd2 Qd1 Kb2 Bbc5 Ra3 Ba4 Ka2 Qe7 Rg2 Bc6 Rg3 Be4 Rh3 Bh7 Rh5 Qh6 Rd5 Qg5 Rdd6 Bg8 Bb6+
3r2Q1/Qk1qN1qQ/2RnRN2/1n2q1bB/1B1qbnK1/p2bB3/1q5N/rr6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 f5 Kf3 h5 e4 d5 c4 Kd7 b4 Kc6 g4 a5 e5 d3 e6 d2 c5 a3 b5+ Kb7 g5 d4 b6 a4 g6 d3 g7 h3 e7 h2 e8Q a2 Qe5 h4 Nh3 Qd5+ Qe4 Nf6 g8Q Na6 Qg2 Nh5 Qg5 Be7 Qe1 d1Q+ Qe2 d2 Qh6 Rd8 Nc3 Bg5 Qh8 Nc7 Ng1 h3 Qf6 Nb5 Rb1 a1Q Qe6 Qb2 Kf2 f3 Bg2 f4 Qg8 Bf5 Q2e3 a3 Bf1 Rab8 Be2 Bg6 Qf5 Qe5 Nd5 Qg7 Qc2 Be4 Nf6 Nd6 Qcd3 Qa4 Ra1 Qad7 Ra2 Qe5 Rc2 d1Q Bd2 Nb5 Bb4 Qb1 Rc4 Qbb2 Qc2 Bd3 Re4 Qed4 Re6 Be4 Kf1 f2 Nf3 Bd3 Rg1 h1R Nh2 Be4 Bd1 Qe5 Ke2 f1N Qf2 Bd3+ Kf3 Nd2+ Kg4 f3 Qb1 Ne4 c6+ Ka6 c7 Ned6 c8N Nf4 Qd4 f2 b7 f1Q Ne7 Qff2 Bf3 Qfe3 Rc1 Re1 Qc5 Q3d4 Qc7 Ka7 Rc6 Rc1 Qc2 Ra1 Be2 Bc4 Qch7 Bd3 Nf1 h2 Bf3 h1B Nh2 Rbc8 b8B+ Ka8 Ba7 Rb8 Qa5 Kb7 Be2 Bhe4 Qa4 Qdd5 Be3 Qdd4 Kg3 Ra8 Bh5 Rac8 Kg4 Rc7 Ra6 Rcc1 Rc6 Rcb1 Qa7+
1n2Q1Bb/n4N2/1R5r/1b3nK1/B1r1r2Q/b2bQNn1/1B1R2qp/b1k1N2n b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 h5 c5 b5 c6 d5 g3 e5 a5 e3 Kf3 b3 a6 h3 a7 d3 c7 b2 Ra6 d2 Be2 h2 Nh3 b4 Qf1 d1N Rb6 b3 Nd2 b1B Qg2 h4 Rg1 h1N Rf1 b2 Rg6 d4 Qh2 e4+ Kg2 d3 Bh5 e2 Nb3 e1B Rg7 e3 Kf3 d2 Qg1 e2 Rf7+ Nf6 Rg7 Ne3 Na1 d1N Nc2 Ba3 Rg6 Bc3 Rf2 e1B Ng5 h3 Rd2 Ba6 c8N Ne4 Rb6 h2 Be8 Rh6 Ba4 Qg8 Qf2 Bh8 Nd6+ Kg6 g4 Nf5 Qd4 Ndc3 Qe3 Bg3 Ne1 Bbd3 Ngf7 b1R g5 Kh5 g6 Nb5 g7 Rb4 Ng5 Rc4 Ndf7 Bh4 Bb2 Neg3 Rb7 Kg6 Kg4 Re4 Ngf3 Bf6 Rb6 Rc4 Nd6 Qd5 g8B Re4 Bc1 Ba1 Bb2 Qb7 Nf7+ Qc6 Nd4 Kf6 Ndf3+ Ke6 Bc1 Kd5 Bb2 Qc2 Kg5 Kc4 Rd1 Qg2 Rd2 Nh4 f5 Kb4 f6 Nhf5 Nd6 Rc4 f7 Re4 Bc1 Kc3 f8Q Rc4 Nf7 Re4 Rf2 Rc4 Qd8 Re4 Bd2+ Kb2 Bc3+ Kb1 Rd2 Kc1 Nc2 Nbd4 Qe7 Bab5 Nce1 Ndc6 Bg7 Nd7 Be5 Rc8 a8Q Na7 Bf6 Rc2 Qae8 Nb8 Q7d8 Rcc4 Qdd4 Re7 Qh4 Ree4 Bb2+
2n5/3rRBn1/4Br2/1b1qbnk1/qNq4N/pQ2B1r1/1r6/KRr1NRrQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 Kf6 c4 h5 Kc2 d5 Kb2 a5 e4 f3 g4 f2 b5 h3 b6 h2 c5 h4 c6 d3 b7 h3 c7 d2 e5+ Kg5 e6 f5 e7 a3+ Ka2 d4 e8B d3 Bc6 a4 Bfg2 f1Q Qc2 f4 Bb2 d1Q Bcf3 d2 Qc6 Na6 b8Q Bg7 Qc3 Qd5+ Qc4 Bd7 c8R Nc5 Be4 f3 Qc7 f2 Bh7 Be5 Bf5 Bb5 Qb7 Ne7 Rc7 Ne6 Qb3 Rhg8 Bc1 Rab8 Nc3 Ng7 Be6 Qfc4 Rb1 f1R Ka1 Nc8 Re7 a2 Bf7 Rf6 Nf3+ Kf4 Rg1 h1R g5 h2 Rf1 Rg1 g6 h1N Bh3 Ng3 Ne1+ Kg5 Bhe6 N3f5 Qa8 Qdg4 Qb7 Qgf4 Qc6 d1R Be3 Rg3 Qa8 Rc1 Qb7 Rd8 Qa8 Nh5 g7 Rd7 g8N Nhg7 Nh6 Rb6 Kb2 a1R Qc6 Nd4 Na2 Rb8 Nf5 Rb6 Nh4 Ndf5+ Ka3 Rb8 Rb2 Rab1 Nb4 Rb6 Ka2 a3 Rff2 Qdd4 Qh1 Qdd5 Ned3 Rcg1 Ne1 Rc1 Rb1 Rb8 Rf1 Rbb7 Bd4 Qfe4 Ka1 Qec2 Qa2 Qa4 Qb3 Ne3 Qb2 Nef5 Nc6 Ba6 Qc3 Rb2 Nb4 Bb5 Qb3 Qc7 Bf2 Qcc4 Be3+
nq1Nn1nB/5rB1/B1Q3Np/1N4rn/2r2QR1/1n3b1n/K1kR4/2b1b1qR b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 g4 Ke6 f4 Kd5 a4 e5 f5 b5 g5 d3 c4+ Kd4 g6 d5 a5 h3 g7 h6 f6 e3+ Ke1 e2 Kd2 e1R c5 h2 f7 b3 a6 b4 c6 e4 c7 b2 a7 b3 Nc3 b1Q Ba3 b2 Be7 Nd7 Nh3 Ndf6 Qc2 Ne8 Na4 Bb7 c8N Rc1 Bb4 Rh7 Qc6 Rc4 Be2 Qg1 Bf1 b1N+ Kd1 d2 Nd6 e3 Qc7 Qb8 Nc3 e2+ Kc2 d1N Kb3 Kd3 Na4 d4 Bg2 e1B Qd8 Ne3 Nb5 Nd5 Bc3 Nb6 Qd6 Nd2+ Ka2 Kc2 Qf4 d3 Bf1 Nb3 Rd1 d2 Nc5 Bf3 Ne6 Ba3 f8B Bc1 Nd8 Ne7 g8Q Rf7 Qg2 Ng8 Bh8 Ba3 Ra1 Bc1 Be2 d1N Bfg7 Nf2 Bf1 Be3 Rd1 Bc1 Be2 Bg4 Qc6 Bf3 Ng5 Nh3 Nge6 Qb7 Rd3 Rc8 a8R Qb8 Ra5 Na8 Nf8 Rcc7 Ra3 Ra7 Ng6 Ra5 Nc7 Rd5 Ra4 Rg5 Nb5 Qe3 Rg1 h1N Rf1 Ng3 Rh1 Qg1 Rd1 Ba3 Rd2+ Kc1 Qe3 Rc3 Nd4 Nh5 Ba6 Bb2 Nb5 Ba3 Rf4 Rc4 Rg4 Bb2 Rd5+ Kc2 Qf4 Bc1 Rd2+
b4N2/QQ2n2B/4Rr2/2b1b1rb/NRQN1k1K/q1Bp1b1n/2r4q/Rr1r4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 c6 b2 c7 b4 Qb3 d1R Qc4 g4+ Kf2 g3+ Kf3 b3 Rh5 Qd6 Be2 Qa3 Ra2 Bg7 Bd2 Bb7 c8Q Ne7 Qf8 Nd5 Bf1 Rg8 h8R Nc6 Qc2 Rc8 a8Q Nce7 Qd3 Rc2 Nh3 g1Q Qb5 g2 Nc3 b1B Qfc8 b2 Qa7 Ba8 R5h6 Qh2 Qcc4 g1B Ng5 d3 Na4 Bc5 Ra1 Ba2 Nh7 b1R Qbb7 Bf6 Nf8 Rg5 Bg2 Bb3 Nb2 Ba4 Be1 Be8 Na4 Bg7 Rh4 Bh5+ Rg4 Bf6 Rh6 Bg7 Ne6 Bf6 Nd4 Bg7 Bd2 Bh8 Kf2 f3 Ra6 Nf4 Rb6 Qh1 Kg3 f2 Bc3 Nh3 Kh4 f1B Rb4 f4 Bf3 Rf5 Rg6 Qh2 Bh1 f3 Re6+ Kf4 e5 f2 Be4 Rg5 Bh7 Ke3 Rd6 Bf6 e6 Bg2 Rdb6 f1R Rd6 Nc6 e7 Bgf3 e8N Ne7 Re6+ Be5 Nf6 Kf4 Nd7 Rfg1 Qab8 Rf5 Q8c7 Rf6 Nf8 Rgg2 Qa5 Rg5 Qaa7
KnRQ4/2N1n1n1/6n1/3r1qqb/k1BQ3b/1r1r2BB/NNn2Rqp/3Qr3 b - - 0 1 illegal: No possible last move
1n3nK1/5NN1/1kq3q1/2rb1B2/RnQ2br1/rq1pBr2/1R3n1N/1R1BQ2r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 f5 Kf3 h5 a4 d5 e4 Kd7 c4 Kc6 g4 b5 a5 b3 a6 b4 g5 h3 g6 b2 a7 d3 g7 h2 e5 h4 e6 d2 c5 h3 e7 b3 e8Q+ Qd7 Qd8 d4 Ra5 Rh4 Ba6 Bb7 Qe8 Bd6 Be2 Rg4 Qf8 Ne7 g8N Ng6 Qe8 Nf8 Qe1 d1N Ra4 Nf2 Ra1 Nd3 Qf7 Nb4 Nd2 b1Q Ra2 b2 Ne4 Qc2 Ng3 b1Q Bd1 Qcb3+ Be3 d3 Kf2 f3 Rb2 f4 Nf5 Qde6 Ng7 Qg6 Qc4 Qc1 Nh6 Kc7 Bd4 Bd5 c6 Be5 Be3 Bd6 Bd2 Kb6 c7 Qcc2 c8B Qc1 Qce4 Qc6 Bf5 Be5 Nf7 Bc7 Kf1 f2 Nf3 Bd6 Rg1 h1N Qc4 h2 Bc1 Ng3+ Kg2 f1R Kh3 h1R+ Nh2 f3 Bg5 f2 Bd2 Bf4 Bc1 Rg5 Kh4 Ne4 Bd2 Qge6 Bc1 Rg4+ Kh5 Qee8 Rb1 Qee6 Rg2 Rfg1 Bd2 f1R Bc1 Rf3 Rgb2 Nf2 Bd2 Nbd7 Bc1 Rc8 a8R Nb8 Ra4 Rc7 Bd2 Ra7 Bc1 Ra5 Be3+ Rc5 Bg6 Rg5+ Kh6 R1g4 Nf5 Rh5+ Kg7 Rhg5 Kh8 Qed6 Bh7 Qg6 Ng7 Re5 Kg8 Re7 Ra3 Ra7 Raa2 Ra3 Raa1 Qg5 Bf5 Qgg6 Qe4 Ra7 Ra3 Rd7 Ra8 Ra7 Qc4 Ra3 Ra4
1nqq1NQ1/1nn4R/N2rQ3/1r3n1r/1Q5B/pq3Rn1/b1B1q2R/b1KB3k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 g4 Ke6 b4 Ke5 c4 Ke4 c5 h5 c6 f5 g5 a5 e3 d5 c7 d3 g6 a3 g7 d4 b5 f3 b6 a2 b7 f2 Ne2 Kf3 e4 f4 e5 a4 e6 h3 e7 h4 e8B a3 Bf7 h2 Qc2 h3 Nbc3 Nh6 g8R Nf5 Rb1 a1N Be6 Ra5 Kd1 d2 Rb5 Bg7 Nb1 Nb3 Qc5 Rh5 Qe7 Nc5 Ba2 Be6 Kc2 d1R Rg1 h1Q c8Q h2 Rb2 Rb5 Nbc3 d3+ Kb1 d2 Nd5 Qg2 Nb4 h1N Bb3 Nhg3 Bc2 Qh3 Rh8 Bd5 Ra2 Ba1 Rh7 Qg4 Bh3 f1N Qce6 N1e3 Nd4+ Kf2 Rh1 f3 Rh2+ Kg1 Rf2 Qgg8 Bg4 Kh1 Qg7 Bb3 Na6 Nd5 Qgf7 Qh8 Qg8 Nc7 Rb2 Bd5 Rb3 Qc8 Rg2 f2 Rh2+ Kg1 Be2 f1Q Bf3 Qe2 Bg4 Nbd7 b8Q Bc4 Qbb6 Nb7 Qc5 Qd8 Qb4 Nb8 Rf3 Bb3 Qd5 Qc8 Ne6 Qd4 Qc6 Qdd8 Nf8 Bd5 Qce6 Bb3 Rg2+ Kh1 Rgf2 Rf1 Rg2 d1Q Rgf2 Q1d5 Rg2 Rf2 Bg5 Ba2+ Kc1 Qdc4 Bh4 Qb3 Rc3 Rf4 Rf3 Rd4 Rgf2 Rd6 Rh2+ Kg1 Re3 Qf2 Bgd1 Qe2 Rf2 Kh1 Ref3 Ra5 Rg2 Rb5 Rh2+
1R5b/K2B2r1/Nn1Q2q1/n1QNr2R/pbQ3N1/1nBb2b1/3n1r1R/2qk3b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 Ke4 b4 a5 c4 d5 h4 f5 e3 g5 c5 d3 h5 f3 c6 f2 h6 f4 c7 a3 Kb6 a2 b5 f3 h7 d2 Qa4+ d4 Bg2 Kd3 e4 f1R e5 d1Q e6 f2 e7 g3 e8R g4 Re7 Bb7 Nf3 Qe8 c8N Ra7 Ng1 Nf6 Rf7 Nfd7+ Kc7 Bb4 b6 Nc6 Re7 Qg6 Bh6 Qc1 Qa3+ Kc2 Nd6 d3 Be4 g2 Rh5 g3 Nc3 a4 Re8 Na5 Rb8 Re8 h8Q Re5 Nh3 g1B Bd2 g2 Ndb5 Bh2 Qg8 g1B Qc4 Bg3 Bf5 Bh1+ b7 Nb6 Nd5+ Kd1 Bc3 d2 Bd7 B1h2 Rb1 a1N Rb2 N1b3 Rc2 Rfe1 Rb2 f1N Ra2 R1e2 Nf2+ Ke1 Ng4 Kd1 Rb2 Rf2 Ra2 Bh4 Rc2 Bf6 Rb2 Bh8 Rc2 Na8+ Kc8 Bf4 Nbc7 Bg3 Na6 Nb6+ Kc7 Be7 Qac5 Bf8 Q5d4 Bb4 Qdc5 Ke1 Bd4 d1B Bc3+ Nfd2 Ra2 Be2 Rc2 Kd1 Ra2 Nc8 Rc2 Nd6 Kb6 Bd3 Bb5 Rf4 Rf8 Nf1 b8Q Rg7 Rch2 Rf2 Bd7 Nfd2 Ka7 Nc8+ Ka8 Rg8 Qbd6 Nb6+ Ka7 Rg7 Rb8
3r2q1/n2Bb1Nr/4Nkb1/qR1K1b2/pB1Q4/Q1b1B1rn/1nbNr3/3Q1R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 d5 g4 h5 c4 f5 b4 a5 e4 f3 e5 f2 c5 a3 c6 h3 b5 h2 e6 a4 c7 f4 g5 f3 b6 a2 g6 h4 g7 h3 b7 Nh6 g8Q Kf6 e7 Bf5+ Kd2 d3 Kc3 d4+ Kc4 d2 c8N d3 e8Q Nf7 Qb3 d1B Qg2 d2 Qe4 Bc2 Nd6 d1N Be2 f1Q Qd5 f2 Qbd3 Rh7 Bf3 Be7 Kd4 Ng5 Q3c4 Qa5 Nd2 Nb2 Rb1 a1B Qg3 Qg2 Ne2 f1R Bg4 Rf3 Rf1 h1B Nf4 h2 Ne6 Nh3 Qe2 Re3 Qd1 Re2 Qa3 Qg3 Qdc5 Bhe4 Qcc3 h1R Ne8+ Kg6 Qd3 Rg1 N8g7 Kf6 Qc4 Rgg2 Qcc5 Bed3 Kd5 Nc6 b8B Na7 Bc7 Rd8+ Bd6 Nc4 Rb5 Bc3 Qe3 Nb2 Qf4 Rg8 Bb4 Rd8+ Qd6 Rg1 Bh5 Qg5 Be8 Rg3 Bd7 Qg4 Nc4 Qg6 Be3 Qf7 Nd2 Qg8 Bf4 Bg6 Be3+ Bdf5 Qf4 Bd3 Qg4 Bc2 Qd4+
1n4BK/3r1bN1/1R4b1/nrp1b2R/1Nb2Q2/3NnnBq/bR1qQ3/Qq4k1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 Kd4 e4 f5 a4 b5 g4 c5 g5 b3 g6 f3 g7 b4 a5 b2 d3 b3 a6 f2 a7 f4 e5 h3 e6 c3 e7 c2 e8R f3 Re7 h2 Rb7 Nh6 g8Q Bd6 Rg7 Ng4 Ra3 Be5 Ra1 Bf5 Nc3 b1Q Na2 b2 Bg2 f1B Qe1 f2 Re7 Ne3 Kh6 Bg6 Qf7 Qa5 Bh3 Qd2 Nb4 Rd8 Rb7 Rd7 Be6 Be2 Nh3 f1N Qf6 Bf7 Kg7 h5 Kh7 h4 Nf4 h3 Ra6 Beh5 Ba2 Bhg6+ Kh8 Bc4 Qe2 Bcf7 Rg1 h1B Rab6 h2 Rg5 Bhd5 Rh5 h1Q Bb3 Qh3 Bc4 Kc3 d4 Nh2 Nfd3 Nf3 Ba2 Bde6 d5 Kd4 d6 Bc4 Bb3 Qe1 Bd2 c1N Ba2 Qd1 Be1 Nb3 Bg3 Na5 Bb3 Qd2 Ba2 Re7 d7 Ke4 d8N Rd7 Be1 Kd4 Ne6+ Ke4 Ng7 Kd4 Qd6+ Ke4 Nf2+ Kf4 Qd4+ Kg3 Qf4+ Kg2 Nfd3+ Kg1 Bh4 Qbe1 Bg3 b1B Bb3 Ba2 Na6 Bb5 Nab4 Qb1 Bd5 Bbc4 Be6 Be8 Bg8 Bef7 Rc7 Nbc6 Rcb7 Rc8 a8Q Nb8 Nd5 Rcc7 Rb2 Rc6 N5b4 Rb6 Qa6 Rb5 Rb6 Nb3 Qa3 Na5 Qa4 Bab3 Qa1 Ba2 Rh6 Qbe1 Rh7 Qb1 Rh5
q1NK1R1r/8/npbNBn2/1rb1kr2/q1r1r2B/1R3B2/1R1qN3/1bQ1b2Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 e4 g5 c4 d5 a4 b3 h5 f3 Kg3 b6 c5 d3 h6 f2 c6 d2 h7 b2 c7 d4 a5 d3 a6 Bc5 a7 Na6 Nf3 Bd7 c8Q Bc6 Qd7 Rc8 Bh3 f1R a8B Re1 Nh4 Ke5 Rh2 f5 Qb7 Nf6 Nc3 b1B Ne2 Qg8 Qc2 d1Q Ra3 d2 Rb3 Qd8 Ba3 Qe8 Qc1 f4+ Kg2 f3+ Kg3 f2 Nf5 f1R Nd6 Rc7 Nc8 Rf5 Rf2 Bb4 Rg2 Bc3 Be7 Qc2 Rh2 d1Q Bd8 Qdd2 Rf2 Ke6 e5 Qa2 Be7 Qa4 Bd8 Kd5 e6 Ke5 e7 Qf8 e8N Qfa3 Nf4 Re4 Ne2 Qf8 Ned6 Qe8 Kg2 g3 Bg4 Qf8 Kh3 g2 Bf3 g4+ Kh4 g1R Rg2 Rg8 h8R g3+ Bg4 Qe8 Be7 Rgg5 Rf8 Re1 Rf2 g2 Bd8 g1B Be7 Rc4 Bd8 Bb5 Qh1 Bc6 Rg2 Bc5 Rh2 Bd7 Bf3 Bc6 Be7 Rg8 Rf2 Rb4 Rh2 Rb5 Rf2 Rf4 Rg2 Rh8+ Kg5 Qd8 Be6 Rf5+ Kg6 B3b4 Kf7 Ba5 Na7 Qa8 Nac8 Nd7+ Ke8 Nf6+ Kd8 Bc3 Nd4 Re4 Re2 Qg5 Rf2 Be1 Rfb2 Qd2 Ne2 Bg1 Bf7 Nh5 Re8 Bd5 Qh4 Rcc4 Rf8 Bc6 Qh1 Bc5 Bh4 Nf6 Be6
Br2bbq1/bQ1RRnpn/1Q1b4/2q1N1nN/n1k1rB2/3N1BbQ/3K4/7r b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 Ke6 f4 Kd5 a5 b5 a6 e5 a7 b3 f5 b4 f6 b2 h5 d3 f7 g3 c3 e3 h6 b3 h7 g2 Be2 e4 Bd2 Kc4 Bf1 d5 Qf3 e2 Be3 d2+ Kf2 d1Q Qh3 d4 Qg4 d3 Rh2 d2 Nf3 g1B+ Kg3 Bd7 Kf4 Nh6 Rh1 Qc2 Bg2 e1B Qg6 d1N Qb6 Be8 Ra2 Bd2 Ne1 Nd7 Bf3 Nf6 Nd3 Rb8 a8B Nf2 Ra7 Qc1 Rd7 Nh3+ Ke5 Qc8 Bf4 e3 Rh2 Be1 Re2 Bg3 Re1 Rg8 h8Q Nh7 Ke4 Bd6 f8N e2 Ng6 Nf7 Be3 Qc2 Nf4 Bf8 Nh5 Bgd6 Bf4 Qd8 Qb7 Ba7 Qb6 N3g5+ Ke3 Qc8 Nb4 Qf5 Nd3 Qe5+ Kd2 Qec5 Rd1 Qd8 Re7 e1B+ Ke2 Bg3 Kd2 Nf6 Qh7 Rh8 Qf5 Nfh7 Qh3 Qg1 Rd7 Qc5 Re1 Nf6 Re5 Rh6 Re6 Nfh7 Ree7 Re6 Qf5 Re4 Qh3 Qc6 Na3+ Kd5 Nf2 b1R Nd3 b2 Nc4 Rh1 Nce5 Qc8 Qb7 Qd8 c4+ Kd4 c5 b1N+ Kc2 Qcc8 c6 Nc3 Kd2 Na4 Qb3 Qb6 c7 Qc5 Qb6 Qd8 Nc6+ Kc4 c8Q Nh6 Qcb7 Qc8 Rd8 Qe6 Rdd7 Qg8 Qg4 Nhf7 Qh3 Kd5 Nce5+ Kd4 Nc6+ Kc4 Nce5+
r1N3N1/n2pr3/1N1QB1B1/1b2bqn1/1Kb2qQ1/3br3/1Rrn1R1Q/k3B2r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 g4 Ke6 c4 Ke5 a4 h5 e4 f5 a5 b5 c5 h3 a6 h2 g5 h4 g6 f3 g7 b3 a7 b4 c6 h3 c7 b2 Bb5 b3 Ra2 d3 Kc3 d2 Qf1 d1R Ra1 f4 Bc6 f2 Qg2 f1N Bd5 f3 Bh6 f2 Bc1 Qh4 Ne2 Bd6 Bc6 Rh7 Bh6 Nd2 Ra3 f1B Ra2 Re1 Na3 b1B Nd4 b2 Bd5 Nf6 g8Q Bca6 c8N Re7 Nf5 Bfb5 Be6 Nh7 Rf1 h1R Rf2 h2 Q8g4 B1d3 Qg1 b1R Rb2 Re3 Bg5 Nc6 Nh6 Rbe1 Ng8 R1e2 Qd1 Qg3 Bh4 Qf4 Qc2 Ng5 Bg3 Rb8 a8Q Na7 Qc6 Ra8 Bh4 Bb8 Kb4 Kd4 Nc4 Be5 N4b6 Bbc4 Qc7 Bab5 Qb8 Rf1 Bg3 h1Q Qc7 Qh7 Qd6+ Bd5 Qcc7 Qhf5 Qb8 Rh1 Bh4 Bh8 e5 Bf6 Bf7 Bg7 e6 Be5 Qbc7 Ndf3 Bg3 Rc2 Qb8 Nd2 Bg6 Rg7 e7 Rgh7 e8B Re7 Qf6 Bd5c4 Bef7 Rhe1 Be6 Rh1 Ka5 Kc3 Qd6 Rhc1 Qh8 Rd1 Qh2 Rh1 Rb4 Bb3 Bh4 Kb2 Bg3 Ka2 Bh4 Bb3c4 Rb2+ Ka1 Kb4 Ba4 Re2 Bc6 Be1 B6b5 Rf2
6N1/1p1n3r/1R1n4/b1R3N1/1B2B2k/QRb1bqqr/KN1Qb1nb/2Qq3q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 c4 Kf6 Kc2 e5 Kb2 d5 h4 g5 a4 g3 f4 d3 f5 d2 a5 d4 h5 g4 c5 Kg5 c6 g2 c7 b3 h6 e3 f6 g3 a6 d3 h7 e4 a7 e2 f7 e1N Ra6 e3 Ra4 e2 Rh6 Bg7+ Ka3 b2 f8Q Bc3 Qe7+ Nf6 Ra6 Qg8 Rh1 Nd7 Nh3+ Kh4 Rb6 g1B Bg2 Bh2 Qd6 Ne8 Be4 g2 Ng5 g1B Rb3 Qg7 Ka2 Ng2 Na3 e1B Nc4 Be3 Qb4 Rb8 a8Q Nd6 Qaa3 Qe5 Rf1 Qg3 Rf6 Ra8 Qc2 d1Q Bd2 Qdf3 Qc1 Ra5 Rf5 Re5 Qba5 Re7 Qd5 Ba5 Bb4 d2 Re5 d1Q Qdd2 Rg7 Rc5 Rf7 Qd5 Bc3 Qdd2 Rd8 h8N Rh7 Nhf7 Rdh8 Nh6 Qh1 Rc6 Qhd1 Rb6 Qh1 Ng8 Qhd1 Qa4 b1Q+ Ka3 Qh1 Nb2 Qc2 Ka2 Qcd1 Qd4 Nb8 Qd3 Bg4 c8R Nd7 Qdc2 Qf6 Qf2 Be2 Qa3 Qf3 Rc5 Bb5 Kb1 Rf7 Ra6 Kh5 Qg1 Be2 Qe1 Kg4 Rac6 Rh3 Qd2 Kh4 Rb6 Rh7 Ka2
3r3n/b3q3/1N2rr1Q/2rb1N2/n2N2r1/KB2Qr1b/b2pb1Q1/1kBB2RR b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 c4 Ke6 Kc2 Ke5 Kb2 Ke4 a4 h5 g4 f5 e3 b5 g5 d5 c5 f3 a5 f2 c6 d3 a6 f4 g6 f3 g7 h3 c7 d4 a7 d2 Qb3 d1B Qa4 b3 Ra2 h2 Be2 f1R Qa5 f2 Nf3 d3 Qa6 d2 Ra3 h4 Qf6 h3 Qa6 b4 Ra1 Rh5 Ne1 Bc5 Nd3 Nh6 g8Q Qe7 Qf6 Nd7 Bg4 Nb6 Qgg7 Nf7 Qgg5 Be2 Ra3 Na4+ Ka1 b2+ Ka2 Nh8 Nf4 Bd4 Rg1 h1B Ne6 h2 Nc3+ Kd3 e4 Kc2 e5 b1R Nb5 Bd5+ Rb3 h1R Qfh6 R1h2 Ng7 R2h4 e6 Be3 Bf3 Rg4 Nf5 Rb8 a8B Ba7 Qgg6 Re1 Bb7 f1R Qgg7 Bd7 c8N Rh3 Nb6 Rd8 Qgg5 Rh5 Qe3 Rhg5 Bc6 Rg6 Qf2 Rf6 Qg2 Bc8 Bb2 Rbc1 Nbd4+ Kd1 Be8 Rc5 Bc1 Rf2 Bh5 Bd7 Be4 Rf3 Bd3 Bc8 Bc4 Bd7 Rd3 b3+ Ka3 b2 Rh1 b1B Ba2 Qg7 e7 B7e6 e8Q Qe7 Bc4 Ba2 Rb3 Rff4 Rg3 Rf3+ Qe3 Bd7 Qg6 B7e6 Qh6 Bc8 Nb3 Kc2 Nbd4+ Kb1 Bb3 Rh4 Nd6 Bh3 N6f5 Re4 Qgf2 Ree6 Rgg1 Rf1 Qg2 Rg3 Be8 Rff3 Bb5 Rgg6 B5c4 Rg7 Bd1 Rg4 Bcb3
b3r3/qQ1B1R1k/rrrqN1nb/3RB1p1/1b6/2R1NqBn/2K4N/1n1Q2q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 c4 g5 h4 f5 e4 Kf7 a4 Kg7 c5 d5 h5 f3 h6+ Kh7 e5 f4 a5 d3 a6 g3 a7 b3 c6 d4 e6 g2 c7 f2 e7 b2 e8N b4 Nc3 b1R Ra5 b3 Qg4 b2 Ra4 f3 Qg3 Qe7 Ng7 Nf6 Rh2 Bb7 c8R Ng4 Ne4 Nd7 Rac4 Nde5 Nc5 Ng6 Nh3 g1B Bg2 f1Q Ra4 f2 Nf5 Bg7 Ra6 Re8 Bc6 Qg2 Kd1 f1R+ Qe1 d2 Ra5 Qf3+ Kc2 Nf2 Bd7 Qd6 Qd1 d3+ Kb3 Rfe1 Ne6 Re5 Rc7 Rc5 Ne3 Rc6 Rd5 Qc5 Rh1 Bh2 Rf1 Bd6 Ng1 Nh3 Rf2 Qd4 Rf1 Bb4 Rf2 Qc5 Rc8 Qd6 Rc7 Qf7 Nf3 Qfe7 Nh2 Qf7 Qh1 d1Q+ Rc2 Qe1 Rc3 d2 Kc2 Qg1 Qf3 Rab8 a8Q Ra1 Qa6 b1N Qd1 Ba8 Qb7 Raa6 Ba3 Qf3 Bb2 Qc5 Ba1 Qa7 Bb2 Kh8 h7 Bh6 Ba3 Ba5 Bd6 Bb4 Qc8 Rbb6 Bg3 Qgh1 Qb7 Qg1 Nd4 Kg7 h8B+ Kh7 Ne6 Rc5 Qe2 Rcc6 Bhe5 d1Q+ Kb2 Qd4 Kc2 Qc5 Qd1 Qd6 Rc8 Re7 Rf8 Re8 Rf7+
2R5/1Nb4r/1Rr1B2r/n1p2QQq/2BR3B/q4qQn/2nN1rbK/3k1q1b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 g4 Ke6 Kg2 Ke5 e4 Kd4 a4 h5 g5 b5 e5 c5 e6 f5 d3 b3 e7 c3 e8B b4 a5 c2 a6 b2 g6 h3+ Kh2 h4 g7 f3 a7 f4 Nd2 Ke3 d4 b1R d5 f2 d6 f3 d7 b3 Bg2 f1R Bf7 b2 Ne2 f2 Nf4 Nf6 g8R Qe8 d8Q Nd5 Qg5 Rh7 Bg6 Bb7 Bh5 Bd6 Bf7 Bc7 Rh8 Nc6 Ra6 Na5 Rg8 Rc8 Be6 Qh5 a8Q Ra1 Rg7 b1N Bd7 Na3 Bb2 c1Q Be6 Nc2 Bf6 Qa3 Rc6 Rb1 Bd8 Rb6 Rd6 Rc6 Be7 Rch8 Qc8 Rh6 Qdg4 R8h7 Rg6 Ba8 Ne2+ Nf4 Qg3+ Qf3 Nc3 Bb7 Nd1+ Ke2 Ne3 Qh5 Nec4 Kd1 Rd4 Qhf3 Rg1 Ba8 Kh1 h2 Nd6 Nh3 Bd8 Qh5 Bgd5 Bb7 Kg2 h1B+ Kh2 Be4 Rg8 Kc1 Rf8 Nf4 Bf5 Ra6 Bc4 Bbd5 Qg6 Rc6 Nb7 h3 Qd3 Bf3 Kg3 h2 Bh4 h1Q Qd8 Bfe4 Be6 Nh3+ Qd6 Bf3 Qdf5 Bde4 Ra8 Bd5 Ra6 Kd1 Qg7 Re1 Qgg4 f1Q Rb6 Re2 Rg2 Rf2 Qgg6 Qfd3 Qgf6 Qhf1 Kh2 Bfe4 Qg7 Rf4 Rg6 Bh1 Qge7 Bde4 Rg8 Beg2 Qeg5 Rf2 Rc8 Qdf3 Qdg3
3Nr1k1/3Rrrrn/nBKB1b1Q/3r3N/nrR4b/1pq5/b3Q1B1/Q2R3b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 Kf7 a4 g5 c4 b5 c5 b3 e5 d3 c6 b4 h5 b2 h6 g3+ Kf3 b3 c7 g4+ Kg2 d2 h7 d4 a5 d3 a6 Qd4 a7 Bb7+ Qf3 d1R c8Q d2 Rh5 Bg7 Bb5 Bf6 Nh3 Qc3 Rh6 Na6 Bd3 Rb8 Na3 b1B a8Q Ba2 Nc4 Bh4 Be2 Nf6 Ba3 Re8 h8B Kg8 e6 Nh7 e7 Re1 Bd6 d1N Na5 Nb2 Rc1 Na4 Nc6 Rd1 Qd8 Rd5 Bf1 Bf6 Qe2 f3+ Kg1 f2+ Kg2 f4 Rd1 Bh4 Bd4 Bf6 Bb6 f3+ Kh1 Bh4 Nf4 g2+ Kh2 g1R Nh5 Rg3 Bg2 f1R Qc8 f2 Nd8 Bf6 Qc6 Re1 Qa7 f1R Rg6+ Kh8 Rg7 Rf2 Rf7 Kg8 Qa8 Bh4 Rf4 Rff3 Rc4 Rf7 Qa7 Rgf3 Qa8 g3+ Kh3 Rff1 Kg4 Rg1 Qa7 Bf6 Kf4 Ba8 Ke4 Rb7 Bbc5 Rb4 Bb6 Bb7 Bf1 g2 Qa8 Ref8 e8R Bh4 Re7 Re8 Be5 Bf6 Rd7 Bh4 Qh6 Bf6 Kf4 Bc6 Bd6 Bb7 Qd2 R1e7 Qe2 Rde5 Qc8 Qh3 Re4 Rg5 Qcc2 Qc3 Rc4 Rgg7 Qb2 Rh1 Ng3 g1B Qa1 Bf2 Kf5 Rh4 Nh5 Bh1 Bg2 Rh3 Kf4 Rd3 Kf5 B2h4 Kf4 Be5+ Ke4 Bd4+ Kd5 Bdf6+ Kc6 Rd2 Kb7 Rd5 Kc6
n3N2K/1rB4b/3nR1Q1/bQ1n1N1r/2b1pb2/k3RQb1/3b2nq/3BN1Br b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 Ke7 a4 Kd6 f4 Kc5 c4 d5 f5 b5 a5 g5 h5 b3 f6 Kb4 h6 g3 c5 g2 a6 d3+ Ke3 d4+ Kf2 d2 Kg3 e3 c6 d3 c7 g4 Kh4 g3 Kh5 b2 Kg6 e2 h7 e1B a7 Ne7+ Kf7 Qd6 Rh5 Nd5 Be2 Be6+ Kg6 Nd7 c8N Bh6 f7 N7b6 f8B Bf4 Kg7 Rb8 a8Q Rb7+ Ne7 Bf7 Qc8 Na8 Nf3 g1B Ng5 g2 Qg4 Be3 Qc2 g1B Qg3 d1R Ng6 d2 Ne6 Bgf2 Qf3 B2g3 Na3 b1N Rh3 Nbc3 Nc7 Ne4 Ne7 Bb6 Rh6 Ba5 Ne8 Qb8 Ra2 Nd6 Qg6 Ka4 Rc2 b4 Rc3 b3 Nf5 b2 Re3 b1B Nc2 Bg8+ Be7 e4 Ba3 Ba2 Bc5 Bc4 Bb6 Rc1 Bc7 d1N Bed8 Bed2 Ne1 Rcb1 Bf6 Ra1 Bc3 Ka3 Bd4+ N1c3 Bd1 Rc1 Rd3 Ne3 Ba7 Ng2 Bg1 Qd8 Re3 Qh4 Qf7 Rcb1 Re6 R1b5 Qd7 Rc5 Qb5 Qh2 Nd4 Rh5 Nf5 Bf7 Nf6 Bg6 Ne8 Rf8 h8Q Bh7 Qg8 Rf6 Bb3 Nd5 Kh8 Rfh6 Qg6 Rh4 Re7 Qh1 Re5 R6h5 Bf2 Qg1 Re6 Rh1 Bc2+ Nc3 Bb3 Qh2 Bg1 Nd5 Bd1+
n2b4/knRb4/2b3rR/2pNK1Bb/N1B2n2/4R2r/QQ2r1Q1/1bqrN2b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb6 a4 h5 g4 f5+ Ke5 c5 d4 c3 e4 f3 d5 f2 g5 h3 a5+ Ka7 g6 b5 a6 c2 g7 h2 d6 b3 d7 b4 Ne2 h4 Ra4 f4 Nec3 h3 Nd2 b2 Qf3 b1R Qg4 f3 Qh4 b3 Ra3 b2 Ra2 Ne7 g8Q Nd5 Qhh7 Nc6+ Ke6 Nb6 e5 Na5 Qh5 Nb7 Ra4 Be7 Be2 f1R Qhe8 f2 Nd5 Rg1 Qg2 f1B Bc4 Be2 Qf7 Bh5 Nf3 Re8 Bh6 c1N Bg5 Nd3 Ne1 Nf4+ Kf5 Rd1 e6 b1B+ Ke5 Rh8 Rb4 Qg8 d8Q Bd7 Qde8 Bd8 e7 Rh7 Qg7 Rc8 Qef7 Na8 e8R Rc6 Rb6 Rg6 Rc6 Rf1 Qgf6 Rf2 Rc7 Qf8 Qg8 Qh6 Qb6+ Kb8 Qb2 Ka7 Rf1 h1B Re6 Rc2 Rf3 h2 Re3 Re2 Rd6 Rgg7 Rb6 Qg6 Re6 Qc2 Rh6 Qc1 Qf7 Nh3 Qff2 Rg6 Qa2 Rh8 Qf6 Nf4 Qb6+ Kb8 Qbb2 Ka7 Nb6 Be7 Na4 Kb8 Qg4 Nb6 Qb5 Bhc6 Qg2 h1B Qbb2 Bhg4 Rh3 Bd8 a7+ Ka8 Rg3 Rh2 Rh3 Bgf3 Rh6 Rh3 Nc3 Bh5 Nd5 Na5 Rc8+ Kb7 a8N Ka7 Rc7+ Kb8 Nc3 Nb7 Na4 Ka7 Rc8 Rdd6 Nc7 Rd1 Nd5 Na8 Rc7
Q2B2r1/2r2QR1/1QN2kBb/1b5q/r1b1b1BR/r2nnrp1/1N1K4/1R2n2n b - - 0 1 illegal: No possible last move
1r1Qr1N1/2nQnB1B/Nq4rN/3bB3/p1R1r1r1/b2b1b2/1k1rRQ1K/5q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 b4 Kd6 g4 Ke5 Kg2 h5 e4 f5 c4 a5 c5 d5 c6 a3 c7 d3 g5 Kd4 e5 d2 b5 h3+ Kh2 a2 g6 h4 e6 f3 b6 f4 e7 a4 e8Q f2 b7 f3 g7 Ne7 g8N Be6 c8B Qb6 Be2 f1Q Bb5 f2 Qd7 Na6 b8Q Nc7 Qf3 d1R Qb3 Re1 Nc3 Re4 Rb1 a1R Qa7 Rb8 Nh6 Bg4 Bd2 Bf3 Rd1 Rb1 Qa2 Rb4 Qa8 Rg8 Qc2 Rg6 Rc1 Rc4 Qb2 Kd3 Na2 d4 Re1 Reg4 Bc3 Re4 Qa3 Kc2 Qc5 d3 Ng8 d2 Ne2 d1R Ng3 Rd2 Be5 Reg4 Qe3 Rce4 Bd3+ Kb3 Nb4 Ka3 Bf4 Kb2 Nf5 Ned5 Bc4 Rd6 Qa6 Re8 Qd8 Qe2 Bg3 f1R+ Qf2 Be4 Rd1 Re1 Qb5 Bd3 Nfh6 Rde6 Na6+ Bb4 Qbd7 Ne7 Bb7 Ba3 Rf1 Rf6 Kh1 h2 Kg2 h1B+ Kh2 Bf3 Be4 Re6 Bh7 Reg6 Bf7 Bd5 Rc1 h3 Kg1 Qd1 Rc6 Ree4 Re1 h2+ Kh1 Qc1 Rc4 Qa1 Kg2 h1B+ Kh2 Bf3 Re2 Qf1 Be5+
nQnQ3N/r1R3R1/b1nBb3/1r6/pN2Q3/1q1bbK2/r1n1B2r/k2B1Nb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 b4 Kd6 g4 Ke5 c4 a5 e4 h5 c5 f5 g5 d5 c6 h3 b5 f3 b6 h2 b7 h4 g6 a3 g7 d3 c7 Kd4 e5 a4 e6 d2 e7 h3 e8B a2 Bf7 f4 Na3 Kc3 Bc4 d4 Qe1 d3 Bh5 Be6 c8N Qb6+ Qe3 d1N+ Kf1 f2 Qg3 Qb3 Bd2+ Kb2 Qh4 Bc5 Nf3 Ra7 Qd8 Nc6 b8Q Nge7 g8Q Be3 Ng1 Nc3 Nc2 Nb5 Qd5 Nc7 Qgg5 Na8 Nb6 Nc8 Bg4 Rh5 Bb4 d2 Ke2 f1B+ Kf3 d1N Qg6 Bd3 Qd7 Rb5 Rc1 a1B Qd8 Ka2 Bc5 Bad4 Ne2 Bg1 Qe4 Ne3 Ng3 Kb2 Na3 Nc2 Bd6 Bde3 Nd7 Ka2 Ne5 Kb2 Bf5 Ka2 Nf7 Kb2 Kg4 f3 Nh8 f2 Kf3 f1B Bg4 Ka2 Nb1 Ka1 Bh5 Bgf2 Rg1 h1R Bg4 Rh2 Nc3+ Kb2 Rg2 Bg1 Nd5 Ka2 Nb4+ Kb2 Rd2 Re2 Bh5 h2 Rdd1 h1R Bg4 Bh3 Nf1 Rhh2 Bh5 Re5 Ba6 Rb5 Re1 Rd2 Re2 Bec4 Rg2 Bhe6 Rg7 Rdg2 Rd1 Re2 Rd2 Ka1 Rc7 Re1 Rg2 Rb1 Rgg7 Rb2 Kg3 Ra2 Be2 Rb6 Kf3 Bb5 Bb7 Ba6 Bd1 N6e7 Bd5 Nc6 Bc4 Rb5 Qeh4 Bg6 Bce2 Bd3 Qe4
1q1R3K/2r3B1/2r4Q/r1N1p1bN/n4k1n/3bnr1B/2b1b2R/R1nQB1Nn b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 d5 a4 b5 c4 h5 g5 Kf5 a5 e5 a6 e3+ Kd3 e2 a7 e1N+ Ke2 d3+ Ke3 d2 g6 b3 c5 d4+ Kf2 h3 Kg3 h4+ Kf2 d3 Ke3 b2 c6 b4 c7 h2 g7 h3 Nc3 b1R Be2 b3 Ra3 b2 Qa4 d1N+ Kd2 Be7 Rb3 Bg5 Ra3 Rh7 Bf1 Ne3 Ra1 Nd7 Qd1 Nb6 Ne4 Ne7 g8N Ba6 c8R Ng6 Nc5 Rc7 Nf6 Nh4 Nh5 Na4 Rb8 Qd6 Rd8 Rac8 a8Q Qb6 Ne4 Qb8 Nc5 Rc6 Qb7 R8c7 Qbb3 Bc4 Qb6 Bb3 Qa6 Bc2 Bg2 Nb6 Kc3 d2 Bf1 Nd3 Bg2 Kg6 f5+ Kh6 f6 Kg6 f7 Kf5 Ra3 Ra1 f8B b1B Bg7 Ra2 Bb2 Nc1 Kb4 Ra1 Bc3 Na4+ Qb6 Nb2 Ra6 Ra5 Bf1 Na4 Ra7 Neg2 Kc4 Bd3+ Kd5 Bbc2 Qe2 d1B Be1 Ba6 Qd2 Bde2 Qd1 Bad3 Ra8 Rg6 Qf6+ Kg4 Ke6 Ne3 Nd7 Rh6 Kf7 Rg6 Qb6 Rgc6 Kg8 Kf5 Ng3+ Kf4 Kh8 Rcc5 Qh6 R5c6 Nf3 Neg2 Nc5 Ne3 Rg1 h1R Rg2 Rg1 Rh2 Rg2 Ng1 Rf2 Ra7 Rf3 Nh5+ Kf5 Rg2 h2 Ra6 h1N Rh2 Qa8 Rb6 Kg4 Rb1 Qb8 Ra1 Kf5 Ng3+ Kg4 Bh3+ Kf4 Nh5#
Q2n3b/3Bnn2/pNQ5/r1B3nK/R1bR1q2/2bnNN2/q1Rb3k/2Br3n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 h4 Kd6 b4 Ke5 e4 g5 c4 d5 c5 f5 b5 d3 h5 d4 h6 a3 b6 g3+ Kf3 a2 c6 d2 h7 d3 c7 g2 b7 g4+ Kf2 g3+ Kf3 Qd5 Rh5 Nc6 b8Q Be6 Qb4 Nh6 c8R Bg7 Rf8 Nf7 Re8 Ncd8 Qda4 d1N Rh3 d2 Re7 Nb2 Rc7 d1N Rc5 Nf2 Qaa5 Nh1 Ne2 g1N+ Kg2 Nf3 Qa6 N3g5 Qe1 Nd3 Rh4 f3+ Kg1 f4 Na3 f2+ Kg2 Rf8 Qc6 Bh8 Nd4 a6 Be2 f1N Rc2 Ra7 Bd1 Rd7 Bg4 Qa5 Qb4 Bc4 Qbb7 Rd6 Qa8 f3+ Kg1 f2+ Kg2 Qd2 Nf3+ Kf4 e5 Rd5 e6 Ra5 e7 Bc3 Rb1 a1B e8N Bh8 Rb8 Bac3 Nf6 Re8 Rb6 Re1 Nd7 Rd1 Rbb2 Rf5 Rb4 Ra5 Bb2 Qe2 Ra4 Bd2 Bd4 Bc3 Bc5 Qd2 Rc1 Qa2 Nc2 Nh2 Nfe1 Nhf3 Ne3 Nf3e5 Nb6 Ng6 Rc2 Ne7 Bd7+ Ke5 Kf1 g2+ Ke2 Bd2 Rd4 Bc3 Rd6 Kf4 Rd4+ Kg3 Qe4 Nh3 Qec6 Kh2 Kf3 f1Q+ Kg4 Nhg5 Kh5 Qf6 Ba3 Qf4 Nf3+ Kg3 Bc1 g1B Ng2 Bf2 Ne3 Bfe1 Rd5 Bhf6 h8B Bfd4 Be5 Bed2 Bd6 Bg7 Rd4 Bh8 Nf5+ Kg2 Bc5 Kh3 Ne3+ Kg3 Ng1 Kh2 Nf3+
2knQR1B/1Qbr1p2/Bb4b1/1r2b1N1/R2n1B1r/N1r3Rn/6r1/1n1K1Qq1 b - - 0 1 illegal: No possible last move
1QK1n3/B2BBpnR/2nRn1r1/b3N3/Q2Qk3/2n5/1n2b2N/n1rN1qnq b - - 0 1 illegal: No possible last move
2nQ3q/BK1RbQ2/2N1B3/2r3qb/pnb2r2/1r1bNRq1/6Q1/rkN1qR2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kc4 b4 a5 b5 d5+ Ke5 h5 e4+ d3 c3 f5 b6 f3 b7 f4 g5 f2 g6 d4 g7 a3 Ra2 a4 Rc2 Kb3 c4 h3 c5 h2 c6 a2 c7 a1R Bg2 f1B Ne2 h4 Bh3 f3 Rc5+ Ka2 Bb2 d2 Rc6 f2 Bf5 d3 Nd4 h3 Qe2 d1B Rc3 d2 Nb3 Be7 Be6 Na6 b8N Nb4 Nc6 Ba6 c8Q Bd3 Na3 Rb8 Nc2 Kb1 Nc1 Rb6 Rg1 h1Q Ne3 h2 Qh5 Qg2 Qf7 Bfe2 Rf1 h1Q Ra3 Bh5 Bd4 B1e2 Qc7 Rb8 Ba7 d1Q Rc3 Qd2 Qd7 Qc8 Qd8 Qg3+ Kd4 Qhg1 e5 Qe1 Ra3 Rb5 Rc3 Rc5 Ra3 Nf6 g8Q Ne8 Qg4 Bc4 Qgf3 Bed3 Qg2 Nd6 Rc3 Rb5 Ra3 Rb7 Kc5 Rc7 Kb6 Rh6 Qd7 Qh8 Qd8 Rc8 Rc3 Rb8+ Kc7 Nc8 Ra3 Rb5 Rc3 Rc5 Kb7 Be4 Rd3 Bf5 Rd7 Bfd3 Bh3 Rf6 e6 Rf4 Bg4 Ra3 Bf5 Rb3 Bh3 Bf8 e7 Qg5 e8R Be7 Bf5 Qh2 Rf8 Qhg3 Rg1 f1R Be6 R1f2 Rf1 Ra2 Qg7 Raa3 Rf6 Ra1 Qf7 Re4 R6f2 Rf4 Rf3
q1N2R1r/3QqbrB/3n1p1b/nrR1b2Q/K4nr1/2B3Q1/4nb2/N1R2N1k b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 h4 Kd6 e4 Ke5 c4 b5 Kc2 d5 Kb3 g5 a4 d3 c5 g3 h5 f3 a5 d2 a6 Kf4 e5 f2 a7 g2 h6 Kg3 e6 g4 e7 d4 e8R d3 c6 f6 h7 Qe7 c7 Nc6 Qe1 d1Q+ Kb2 b3 Qe2 d2 Qc4 b4 Qb5 Qf3 Rd8 d1R Qa6 Na5 Qe6 Rd4 Re8 Bh6 Qc6 Be6 c8N Bf7 Ba6 f1N Rd8 Ne3 Re8 Nd5 Bg5 Nf4 Nh3 g1B Nd2 Kg2 Qe6 g3 Nf2 Bh2 Nd3 Rb8 a8Q Rb5 Qa7 Qa8 Rhc1 Re4 Ne1+ Kh1 Ra3 g2 Rf8 g1B Qc7 Bf2 Nf1 Rb7 Bd3 Ra7 Kb1 b2 Ka2 b1N Rac3 b3+ Kb2 Rd4 Rc5 Nc3 Ka3 b2 Nc2 b1R Qed7 Rb5 Na1 Nce2 Qcd6 Bg7 Qe5 Nh6 Qe3 Rc7 Qg3 Nf5 Bb1 Nd6 Be4+ Ng2 Bd2 Bh6 Bc3 Ra7 Bc2 Rg4 Bd3 Ngf4 Ka4 Bd4 Bf5 Be5 Bb1 Bg1 Bd3 Bf2 Bg6 Rg8 h8Q Rab7 Qh7 Rh8 Bb1 Rc7 Qg6 Rcb7 Qh5+ Rh4 Nb3 Qe8 Qgg4 Bg8 Qde6 Rg7 Qd7 Bf7 Bh7 Qe6 Qg3 Qe7 Qhg5 Rg4 Na1 Rh4 Qg6 Rg4 Qh5+
Q1rq4/nN2Q3/rr1NB2B/3q4/1RrQR1b1/pqBK3n/n1p1R2b/k1r5 b - - 0 1 illegal: No possible last move
qR1B2BK/1r4Qb/1N1rbN2/1b3nk1/R2nbN1p/1nbR1Q2/6p1/2r3Qq b - - 0 1 illegal: No proof kernel
Qbk3QB/1rqRn3/1R2KnB1/1b3N1q/2p1n2B/b2R3n/2pNN3/n3q1r1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 c5 a4 b5 e4 f5 d4 g5 e5 g3+ Kf3 g2 h5 b3 h6 c3 d5 c4 a5 g4+ Kf2 b4 a6 f3 Ke3 g3 Kd4 f4 h7 b2 d6 b3 Kd5 f2 a7 f3 Na3 b1Q Nb5 c2 Bh6 b2 Qd2 Qc7 Bd3 f1Q Ra4 f2 Qa5 Qbd1 Bc1 b1N Be3 Ba6 e6+ Kc8 e7 Qh5+ Bf5+ Nd7 e8N Ne7+ Ke6 Nd2 Bg6 Rg8 h8B Nf6 Ne2 g1N Nbd4 g2 Nb3 Nde4 Qg5 Qe1 Rb4 f1N Rb6 Nh3 Nd2 g1B Bf2 Bh2 Bh4 Rb8 a8Q Bb5 Ng7 Bg3 Nf5 Rg7 Nf3 Nfd2 Rg1 Nb3 Nd2 Bh2 Rg3 Na1 Rd3 Bf4 Qh6 Bg3 Qh7 Be5 Qg8 Bh2 Qc6 Rb7 d7+ Kb8 Qd6 Nc8 Qa3 Qf4 Qa5 Ba3 Bh7 Rg1 d8R Kc7 Qe8 Ne7 Bg6 Bg3 Qf7 Bh2 R8d7+ Kc8 Qh7 Qd6+ Kf7 Qc6 Qa8+ Bb8 Qg7 Qc5 Ke6 Qc7 Qg8+
1Q2r1qb/B1R1kr2/bp2b1r1/Qp1q2b1/q1nn2B1/B4N2/4QR2/2R2bKN b - - 0 1 legal: proof: f4 c5 g4 h5 b4 hxg4 d4 cxd4 b5 e5 b6 exf4 Kf2 axb6 Ke1 b5 Kf2 g5 a4 f5 h4 f3 c4 g3+ Ke1 g2 Kf2 f4 e4 d3 c5 g4 c6 d2 h5 Nh6 a5 Rh7 a6 Rf7 c7 Be7 e5 Bg5 a7 Ke7 e6 Qg8 Be2 Nf5 h6 Nd6 h7 Nc6 h8B Nc4 Rh5 Nd4 Qb3 d1Q Qd3 Qa4 Nh3 g1B+ Kf1 f2 Ra2 g3 Bg4 d5 Be5 b6 Nd2 Ba6 Qe2 Re8 c8R Bh2 Kg2 f1B+ Kh1 f3 a8Q f2 Bb8 Bg1 Nf3 Bh2 Ba7 Bg1 Nf4 Bh3 Nd3 f1B Bb2 B1e3 Nf2 g2+ Kg1 Bd2 Nh1 Bc3 Kf2 g1R Ba3+ Bb4 Qb8 Bd6 Rc5 Be5 Rc2 Bh8 Rc1 Nc6 Qe1 d4 Qa5 d3 Rh6 d2 Rf6 d1Q Rff5 Rg3 Rf4 Bhg2 Kg1 Qd5 Rf5 Nd4 Rf6 Rh3 Rf4 Rh6 Rf5 Kf8 Rf6 Rg6 e7+ Kg7 Rf4 Bh3 Bf5 Kf6 Ne1 Qd8 Rf2 Ref8 e8Q Qd5 Qe2 Re8 Nf3 Bg4 Bb1 Bgc8 Bf5 Be6 Bg4 Ke7 Rc7+
k1n5/Q6b/pB1nKN2/bRQBb3/br1NRN1R/1p1r1r2/2b3qB/qn6 b - - 0 1 illegal: No possible last move
qnB4b/3k1p2/2b1bBNn/1r3pb1/q1R5/QN1n3r/KQ2b3/NB3RQq b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h5 f6 hxg4 Nc3 exf6 Nb1 f5 Kd2 g5 h4 d5 e4 b5 a4 g3 c4 g4 Kc2 d3+ Kb2 b3 c5 g2 e5 b4 h5 g3 a5 d4 a6 d2 h6 d3 e6 Be7 a7 Bg5 h7 Nh6 e7 Kd7 Nh3 g1N e8N g2 Nc7 Ne2 Nb5 g1B Ra4 Nf4 N1a3 Bd4+ Kb1 b2 Nc2 Bb7 Na1 Bc6 Ka2 Be5 Qe1 d1B Nd4 d2 Bd3 Be2 Rf1 d1Q Bb1 Nd3 Nf4 Qg8 Ng6 b3+ Ka3 Qd8 Rc4 Qc8 Qg3 Qc2 Qg1 Qe8 Ba2 b1B Bb2 Bg7 Bc3 b2 Ndb3 Qd1 Bf6 Bc2 Bc3 b1Q Bb2 Qbc1 Bb1 Qf4 Be5 Qh4 Ka2 Qh1 Bf6 Qee4 Nd4 B2a4 Ndb3 Bab5 Ra4 Bc4 Rb4 Be6 Rc4 Rd8 h8Q Qd5 Qg8 Bh8 Qd4 Rc8 Qb2 Rc7 Qg7 Rb7 Qg8 Rb5 Qg7 Na6 Qg8 Rd8 a8Q Nb8 Qaa3 Qdf3 Na5 Qa4 N5b3 Kc7 Qg7 Rd4 Qg8 Rh4 Qg7 Rh3 Qg8 Be8 c6 Kc8 c7 Qfa8 Qg7 Bc6 Qg8+ Kb7 c8B+ Kb6 Qg7 Kc7 Bc3 Kd8 Qd4+ Kc7 Qg1 Kd8 Bf6+ Ke8 Ba6 Kd7 Bc8+
r1qN4/4rpkq/QQNN1q2/1qB1p2Q/1n1br3/3n4/2Rq1B2/2Rb1bKB b - - 0 1 illegal: No proof kernel
2N1k1Br/4p2r/K2RQ1Q1/4Q1qR/bbr3nn/n1Bp4/6qR/1qr1NrB1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 d5 g4 h5 c4 b5 a4 b3 f4 h3 c5 h2 f5 e3 Kd3 e2 f6 e1R c6 b2 g5 b4 g6 b3 a5 h4 g7 h3 a6 Bd7 a7 Nh6 g8Q Qa5 c7 Nc6 Na3 b1N Qe2 b2 Nf3 Rc8 a8R Ng4 Be3 Rc1 Nb5 Na3 Ra2 b1Q+ Rc2 Rh7 Na7 Qc5 Qe6 Bh6 Bg1 Bd2 Ne1 Bb4 Bg2 Rh8 Be4 Qa5 Bh7 Qc5 Bg8 Qa5 Q2e4 Nce5+ Ke2 Nf3 Kd3 Ba4 Q6e5 Nh4 f7+ Kd7 f8B Ke8 Rb8 Qc5 Rb6 Qa5 Bg7 Rh7 Ke2 d3+ Kf1 d2 Ke2 d1R Rd6 d4 Ra2 Rb8 Nc8 Rc4 Rc2 Rc1 Kd3 Qa2 Rf2 Qd5 Rf5 Qg2 Rh5 Qb5 Na7 Rd8 c8Q Qd5 Qce6 Rb8 Qg3 Qg5 Qge5 Rbc8 Nc2 Rf1 Ne1 Rc1 Q4f5 R8c4 Nc8 Qa2 Ke4 d3+ Kd5 Qe2 Qe3 Qc2 Bc3 Qb1 Qc5 Bb3 Kc6 Ba4+ Kb7 Rh8 Qce5 Rh7 Bgd4 Rh8 Rg1 h1Q+ Rg2 h2 Ka6 Qg1 Be3 h1R Rh2 Qg2 Qfg6+ Rf7 Qh7 Rhf1 Bg1 Rg7 Qhh6 Rgh7 Qhg6+
R3qr1n/1Bpb1N2/1r1qR3/1p2NQ1K/1R1r2r1/3B2B1/rk1q4/bb2Qn1Q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kd6 d4 Kd5 g4 h5 a4 f5 e3 b5 a5 b3 a6 h3 a7 b2 g5 h4 g6 c3 g7 h2 Qe2 c2 Nd2 b1B Bb2 c1Q Nc4 h3 Nd6 Nf6 g8R Nh5 Bg2 Bd7 Rg6 Qd2 Rh6 Ng3 Ra6 Qe8 Bc1 Nc6 Qf2 Nf1 Ra3 Nd8 Qe1 Rg8 Nf7 Kc4 d5 Bg7 d6 Ba1 e4 Rg4 e5 Kb4 Ra2 Kc3 e6 Rb8 a8Q Rb6 e7 Kb3 Ng5 Nf7 Re6 Nh8 Nf7 Kc3 Ra4 Kb3 Rb4+ Kc3 Ne2+ Kc2 Rg1 h1R Nd4+ Kc3 Qb7 Rh2 Nc6 Kc2 Bh1 Re2 Rg3 h2 Nce5 Kc3 Bg2 h1Q Qe4 Qh2 Rh3 Ng6 Rh8 Qh6 Rg8 Nh8 Qd5 Qhf8 Bb2+ Kc2 Bd4 Re4 Bf2 Rd4 Bg3 Qh6 Ra4 Kb2 Qde4 Bc6 d7 Qf6 d8Q Bd7 Nc6 Qe5 Qc8 Qd6 Nce5 Qd1+ Kf2 f3 Rf8 f4 Rb4+ Ka2 Qcb7 Qc1 Qf5 Qd2+ Kg1 f2+ Kh1 Ne3 Kh2 f1R Kh3 Rf2 Bf1 f3 Bd3 Re2 Qbe4 f2 Q4h1 f1R Rg8 Qc8 e8B Rf3 Rf8 Nf1 Rg8 Bc6 Bd7 Qe8 Bc8 Bd7 Bb7 Rff2 Ra4+ Kb2 Ra8 Rge4 Rg4 Ref4 Kh4 Rg2 Kh5 Ref2 Rh4 Rg4 Qg6 Rh2 Nh6 Rf8 Nhf7 Rf2 Qf5 Rf3 Bc2 Ra3 Bce4 Ra2 Bd3 Rgg8 Rf4 Rg4 Re4 Rd5 Rea4 Rdd4 Rb4+
b3n2N/1Rb3Bb/2p1kbQ1/1Rn1r3/2pnb1b1/K4N2/1QqQ1r2/1BNB1b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 g5 Kd2 f5 Kc2 b5 Kb2 g3 h4 g2 e4 b3 a5 g4 e5 f3 d5 f2 e6 b4 a6 g3 h5 f4 h6 f3 a7 Na6 h7 Nf6 Qd2 Nc5 Ra5 Ne8 Ra3 Bg7+ Nc3 Rf8 h8N Bf6 Nh3 g1B Qe1 g2 Bd3 f1B Qe5 f2 Be3 Bh2 Ra5 g1N Bh6 Nf3 Bg7 Bg2 Ng5 f1B Na2 Nd4 Bb1 Qd7 Rg1 Qa4 Nf3 Rb8 a8B Rb5 Qe2 Kd6 e7 Bg4 Qd2 Kd7 d6 Ke6 Bae4 Bg3 Bec2 Rf7 Ne1 Ba8 d7 c6 d8Q Bc7 Bd1 Rf8 Nc1 Rf7 Qb8 Rf8 Bg6 Rf7 Kb1 b2 Nf3 Qc2+ Ka2 b3+ Ka3 b1B Rh1 b2 Rh7 Ne4 Qb6 Re5 Qb3 Nc5 Rb5 Qf5 Qbc3 Be4 Qcc2 b1B Qb2 Qf4 Rh5 Qh2 Rb7 Bd5 Bgc2 Be4 Bd3 Bh7 Bg6 Be4 Rg5 Bd5 Bb1 Qe2 Rf5 Qe4 Rh5 Qc2 Rg5 Bde4 Rh5 Nd6 e8Q+ Be7 Qbc3 Rd5 Rh1 Nd7 Ne5 Rf2 Qg6+ Bf6 Qb2 Ne8 Rh3 Nc5 Rhb3 Rg2 Nf3 Rf2 R3b4 Re5 R4b5
B2rq3/qR2Q1r1/5rn1/1N1pr1bb/1RQ2k2/q2p1B1Q/2nb1BnN/2RK4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 Ke7 c4 Ke6 e4 Ke5 a4 g5 c5 d5 a5 f5 c6 b5 a6 g3 a7 g4 c7 d3 h5 f3 h6 g2 h7 g3 Qd2 b3 Qe3 b4 Kd1 f2 Nd2 b2 Qc5 b1R Qb6 b3 Qc5 b2 Qc6 f4 Nh3 g1Q Nb3 f3 Na5 g2 Qd7 Nc6 Qg4 Bh6 Nf4 Nd4 Ne6 Ne7 Rh3 Nc2 Ra4 Bg5 Nb3 Ng6 Rb4 Rg8 h8Q+ Rg7 Ned4 Qe8 Nd2 Be6 c8R Bf7 Rc7 Rd8 a8B Ra1 Rcc4 b1Q Rh7 Qa2 Nb5 Qa3 Qh3 Kf4 e5+ Ke3 e6 Ra2 Nd4 Kf4 Qf8 Ra1 Qc5 Rb1 e7 Rb2 Rb7 Rb6 Rc7 Re6 Rb4 Re5 Qc3 Nh4 Bb2 Bh5 Qc4 Ng6 Bc1 Qh1 Bb2 g1B Bg2 f1N Nb5+ Bd4 Ba1 f2+ Nf3 Qh2 Bc3 Qg1 Be1 Nfe3+ Kd2 f1R Bf2 Rf7 Nh2 Rg7 Bf3 Ng2 Rb7 Qh8 e8Q Qg8 Qe7 Qe8 Be4 Bb6 Rh8 Ba5 Rh6 Nf8 Rc6 Ng6 Bh4 Rf3 Bf2 Qga1 Rcc7 Qd4 Kd1 Qa7 Rb1 Bd2 Rc1 Re3+ Bf3+ R3e4 Rc6 Re6 Rcb6 Rf6 Nd4 Re2 Rb4 Re5 Nb5+
n6q/1bkn3p/3bK3/r3bp1q/Qb1RNrB1/3Rrn2/NQ3BQR/q2N4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 f5 g4 b5 e4 c5 a4 c3 d4 b3 d5 c4 d6 b4 a5 h3 a6 c2 e5 h2 a7 b2 g5 c3 g6 b3 g7 Na6 Nd2 b1Q Ne2 b2 Ra3 Bb7+ Ne4 Nf6 g8Q Nc7 Bh3 Qa1 Qa2 b1N Be3 c1B Qb2 c2 Bf2 Bd2 Nc1 Bb4 Na2 c1B e6+ Kc8 e7 Nd7 e8N Nd2+ Kg2 f3+ Kg3 Rg8+ Kf4 Rg3 Qa4 Bg7 N8f6 Qh8 Ng4 Be5+ Kg5 Kd8 Rd3 Kc8 Rg1 h1Q Rg2 Qd1 Rh2 Qh1 Be1 f2 Rd4 f1R Bf2 Rf3 Ne3 Kd8 Nd1 Re3 Bg4 Qf3 Qb1 Bca3 Qb2 Qh1 Bh4 Rf4 Bf2 Rc8 Rd3 Na8 Rd4 Rc5 Rd3 Ndb6 d7 Kc7 d8R Ra5 R8d5 Nd7 R5d4 Nab6 a8Q Bbd6 Qf8 Na8 Qh6 Bab4 Qh3 Nf6 Qg2 Nf3+ Kh6 Qe8 Kg7 Qh8+ Kf7 Nd7 Rh6 Qh4 Ke6 Qg5 Rh1 Qh5 Rh2
1nk3Q1/bp2n3/bq2B3/BR4Kp/rr1q1RbN/3rQbn1/1qNR2QB/8 b - - 0 1 illegal: No possible last move
2Q5/6R1/qbb2N2/1n2q2q/1NQRq1N1/kprq1rpB/B1r2nKQ/B2q4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 d5 c4 f5 h5 b5 e5 g5 e6 f3 h6 b3 e7 Kb4 e8N d3 c5 f4 h7 d4 a5 b2 c6 g3+ Ke1 f2+ Kd2 f3 a6 g4 a7 g2 c7 g3 Rh4 Bc5 Rh5 Nc6 Qc2 Nf6 Rh4 Ne4+ Kd1 d2 Nd6 Bd7 c8B Bb6 Ne2 g1Q Bb7 Rc8 a8Q Na7 Nbc3 b1Q Nf4 Bc6 Nf7 Qb2 Ba6 Qg2 Rb1 Ka3 Ne5 b4 Ng4 Nb5 Ncd5 Qg5 Qc5 Qh5 Qc4 Rc7 Nd3 Rhc8 h8Q b3 N3b4 Qh1 Ndf6 Qg2 Nh6 Qh1 Rg4 Q1h4 Rg7 Q4g4 Bh3 Qgh4 Nd3 f1R+ Ne1 Qf4 Nhg4 f2 Ke2 Qfe5 Kf3 d1Q+ Kg2 d3 Qb8 d2 Nd3 Qe2 Qa8 d1Q Nb4 Qed3 Be3 Qbc2 Bd4 Re1 Bc3 Re3 Ba1 Rf3 Rb2 Qce2 Rd2 Qd7 Rd4 Bd5 Qc5 Nbd6 Qc2 Qhg5 Qg8 Qh5 Rd2 Qdf5 Bb7+ Qa6 Rd4 Nb5 Qe2 Rc1 Qe1 R8c3 Qh1 Qfh7 Bc8 Bc6 Qc4 Q7f5 Qg1 Qfg6 Bf5 f1Q+ Kh1 Qfe2 Qc8 Nf2+ Kg2 Q2e3 Bc2 Qgd3 Qh2 Qe3e4 Bb1 R1c2 Ba2
2r2nkN/r4Bq1/b1r2Rr1/qb1K2Nn/R2Np2Q/B7/1brp1RQ1/1B1r4 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 h5 a4 d5 c4 e5 g4 b5 c5 d3 Ke3 d4+ Kd2 e3+ Ke1 b3 g5 d2+ Ke2 d3+ Kf3 h3 Ke4 h4 a5 b4 a6 e2 a7 e1R+ Ne2 b2 f5 h2 f6 b3 c6 h3 c7 Ba3 Nc3 b1R Na4 b2 Ra2 Ba6 c8B Qa5 Nc5 Nd7 Qa4 d1R Ne6 Nf8 Bd7 Rh6 Bb5 Rg6 Kd5 Rc8 a8R Ra1 Qh4 b1R N2d4 Re2 Rb2 Rg2 Rf2 Bb2 Be2 e4 Rhf1 h1B Bh5 d2 Be2 h2 Bd3 Ra3 Bc2 Rba1 Bb1 Rac3 Ra7+ R3c7 Ra8 Rg3 Ra7 Bg2 Ra8 Bc3 Ba3 h1Q Ra7 Qg1 Ra8 Rh6 Ra7 Kg6 f7 Kh7 g6+ Kh8 Ra8 Bb2 Ng5 Rc2 Rf6 Rgc3 R1f2 R3c6 Ra7 Bf1 Ra8 Nh7 f8N Be2 Nd7 Bd3 Ne5 Nf8 Nef7+ Kg7 Nh8 Qg4 Bc5 Bf1 Ba4 Bfb5 Ba3 Ne7+ Ke5 Nf5 Kd5 Kg8 g7 Rg6 Rb8 Be2+ Nb5 Rh6 Bb3 Qd8+ Bd6 R6c7 Ne6 Ng3 Nc5 Nh5 Nd4 Bad3 Ra8 Kh7 Ba4 Qg6 Bd7 Rc6 Be8 Ra3 Nce6 Raa6 Rb8 Ra7 Rb4 Ba6 Ra4 Qa5+ Bc5 Beb5 Ba3 Qf7 R6f3 Rf6 g8Q+ Kh6 Qgg5+ Kh7 Qg2 Qg7 Ng5+ Kg8 Rf5 Rh6 Rf6 Rg6 Bf7+
K7/BQq2BQ1/rq1b2Nk/q2n1bn1/Q1p1q3/4RR1b/R1qr1q1p/4N2B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 c5 Kf3 f5 g4 Kf7 e4 Kg6 d4 b5 a4 h5 g5 c3 d5 b3 a5 b4 d6 h3 d7 c2 a6 b2 a7 b3 e5 h4 e6 h2 e7 h3 e8R Nc6 Re6+ Nf6 Re5 Nb4 Ra6 Nd5 Be3 c1Q Nc3 b1Q Bb5 b2 Bc6 Nh7 Nce2 Qbc2 Ra2 Qa5 d8Q b1Q Qe7 Qbb6 Qg7+ Kh5 g6 Bd6 Qd4 Rd8 Qa4 c4 Bf2 Qc7 Bd4 Q1b2 Re3 Qbb6 Bc5 Rb8 a8Q Ng5+ Kf2 f3 Qb7 Ra8 Bd4 Qbb4 Bc5 Ra6 Ba7 Nf4 Kg3 f2 Nf3 f1B Ne1 Qbb6 Rg1 Be6 Bh1 Nd5+ Kf2 f4 Rg3 Bf5 Rf3 Qbb1 Qf6 Qbb5 g7 Qbb6 g8B Rd7 Qc3 Kh6 Bf7 Bg2 Rg3 f3 Qe5 Qd1 Nf4 Bf1 Ng6 Rd8 Rg4 Qc2+ Kg3 f2 Rf4 Bg2 Rff3 f1Q Bg8 Nc3 Kf4 Qff2 Bd5 Bf8 Bf7 Rd2 Qd6 Nd5+ Ke5 Qd8 Qdd7 Bf1 Bg2 h1Q Qe7 h2 Qf6 Qhg1 Bh1 B1h3 Qg7+ Kh5 Qc8 Qg4 Qc7 Be7 Qcd7 Qc8 Qdc6 Bd8 Kd6 Qge4 Be6 Qcb8+ Kd7 Qbe5 Kc8 Be7 Qa8 Qed6 Qb7 Qd7+ Kb8 Bd6+ Ka8 Qdc7 Qe5 Kh6 Bf7 Qe2 Qc3 Qf2 Qg7+
1Q4bN/2R3BB/2r3rk/prRb2qn/3N1b2/pbN5/n3Q2R/Qn1nK1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 g5 h4 d5 e4 f5 b4 Kf7 b5 Kg7 c5 a5 h5 a3 b6 d3 b7 g3 e5 g4 e6 d2+ Ke2 g2 e7 f3+ Kf2 f4 e8R d4 c6 d3 c7 Rh6 Re4 Na6 b8Q Nb4 Qc2 d1B Qb3 d2 Nc3 Bb7 c8Q Rc6 Qcc7+ Kh6 Re3 Na2 Nh3 g1R Qc2 Bd6 Qb1 Qg5 Qe4 Nf6 Bb2 Bb3 Qa4 d1N+ Ke1 g3 Qc4 g2 Qe2 Bg8 Re7 f2+ Kd2 f3+ Nf4 Raa6 Rh2 Rab6 Rc1 Rb5 Qb6 Bb3 Rc7 Bg8 Qbe3 Bb3 Ne6 Bf4 Qe1 Ba8 Be2 f1B Nd4 f2 Bd3 Be2 Bb1 Bec4 Bh7 Bg8 Qe2 f1N+ Ke1 Nd2+ Qf1 Qd5 Qe2 Nb1 Ba1 Kg5 h6 Nh5 Bg6 Qf5 h7 Kh6 h8N Qg5 Rc2 Rh1 Bh7 g1B Nd5 Rg6 R2c5 Bc6 Nc3 Bcd5 Rg2 Rh3 Rh2 Rg3 Qb2 Re3+ Qfe2 Ree6 Qc1 Rc6 Bb2 Nd2 Qa1 Nb1 Nc2 Bh1 Nd5 Be6 Bd4 Bg2 Nc3 Bg8 Bf6 Bf3 Nd4 Bfd5 Bg7+
2b2bnN/1k3nR1/R2pB2q/KB1Q1Q1b/1r1Bq1Rp/2N1Q3/5b1r/n1b3b1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 h5 g4 a5 c4 e5 b4 a3 f4 e3+ Kc2 a4 g5 a2 g6 e2 c5 e1B f5 a3 Kb3 d3 b5 e4 g7 d2 Kb4 d6 c6 h3 f6 e3 b6 h2 c7 Kd7 f7 Kc6 b7 e2 Bb2 Qh4+ Bd4 Bf2 Bh3 e1B Bf1 Nd7 b8Q Ne5 Qa7 Rb8+ Ka5 Rb4 Nc3 Qe4 Nf3 Bg1 Nh4 Bef2 Ng6 Rh7 Qf3 d1B Nh8 Be2 Qc5+ Kb7 Qe3 Bf3 Bb5 Rh6 Rc1 a1B Rb1 Bb2 Ra1 a2 Qc4 Be7 f8Q Bc1 Qf5 Nf7 Qcd3 Bf8 Qd1 Nf6 g8R Be2 Rg7 Ng8 Rb1 a1N Rb3 Rg6 Ra3 Rg2 Ra4 Rb3 Rc4 Rb4 Rc6 h4 Ra6 Bh5 Qb3 Qf4 Qa2 Qh6 Qad2 Be6 c8B+ Kc7 Bb7 Bc8 Bd5 Kb8 Ba2 Kb7 Qb2 Bg3 Qee6 Bge3 Rg1 h1Q Qd2 Rh2 Qc4 Be1 R1g4 Bg1 Qe3 Qe4 Qcc5 Bg3 Be6 B3f2 Qcd5+
n3B2B/2bbR2b/Np2R3/r3QN1K/1Qq4n/3p1Q2/1nk3qb/b2bB1Rr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 h4 Ke5 c4 Ke4 a5 g5 e3 d5 c5 f5 a6 d3 a7 b6 c6 d4 c7 f3 Kg3 d2 h5 f2 h6 f4+ Kg2 f3+ Kg3 b3 h7 b2 Na3 b1B Bb5 f1Q Nh3 f2 Nc2 Bd7 c8R Nh6 Ne1 Qc4 Ba3 f1N+ Kf2 Bd6 Rc6 Nf5 Bb4 Bc7 Nf3 Kd3 e4 N1e3 e5 Qg8 e6 Na6 e7 Nh4 Qe1 d1B e8Q Kc2 Nf4 Qg6 Ne6 g3+ Kg1 g2 Kf2 g4 Nc5 Qg5 Qe5 g1B+ Kg3 Qgg8 Kf4 g3 Re6 Bh2 Rg1 Qg6 Ra3 Qe4+ Kg5 g2 Kh5 Qb7 Rf1 g1B Rb3 Bf2 Rg1 Qbd5 Re7 Qg8 Ba5 Qg2 Qb4 Be1 Ba4 Bc3 Bb5 Ba1 Rb2+ Kc1 Re2 Be4 Ree1 d3 Bc6 Kc2 Re6 Rhg8 h8B Bh7 Bb5 Rg3 Re7 Rh3 Re6 Bc8 Be8 Bd7 Re7 Qa2 Re6 Nc4 Re7 Nb2 Re4 Rd8 a8Q Qc4 Qad5 Ra8 Re6 Bb8 Re3 Nc7 Na6 Ra7 Qde4 Na8 Qg4 Kc1 Nd4 Bc7 Nf5 Kc2 Re7 Bg3 Qf3 Rh1 Qa3 Bh2 Be1 Qf4 Qb4 Qc4 Nb8 Ra5 Na6 Bb5 Qd4 Ba4 R3e6 Bd7 Qe5
K1Q1q2Q/3r2pb/1b2qQ1r/RrpR2rN/4nB2/1N1nB3/3rBrkb/1R6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kd6 h4 Kd5 a4 Ke4 d5 b5 d6 f5 a5 g3+ Kg2 b3 h5 b2 e3 c3 a6 b4 a7 f3+ Kh3 f4+ d7 b3 Kg4 c2 h6 g2 h7 f2 Nh3 g1B Ra2 f3 Bb5 f1Q Ra5 f2 Qd6 Nc6 Ba6 Nb4 Rh5 Qc4 Nf4 f1R Rb5 Bh2 Nh5 Nf6+ Kg5 Kf3 Kf5 c6 e4 Kg2+ Bf4 c1R Ke5 Rf2 Nd2 Rc2 Rd1 Rb8 a8R Rb7 Rc5 Qg8 Be2 Ra7 Ra1 b1R Rd5 Qb6 Qe6 Bc5 Qe7 Qb5 Qf8 Bd4+ Kd6 Bb6 e5 Rc7 e6 Rbb2 e7 Nd3 e8Q Rc5 Rd4 Rg5 R8a5 c5 Rd5 Ra2 Qe5 b2 Be3 b1R d8B Rbb2 Rb1 Bf5 Be7 Ra7 Qc8 Qbe8 Bf8 Rd7+ Kc6 Rb3 Bd6 Rb5 Nb3 Ne4 Qf6 Rd2 Bc7 Qge6+ Kb7 Bg6 Ka8 Rf8 Qb2 R8f6 h8Q Bh7 Bcf4 Rh6 Qf6
1B1R1Q1r/1pKRrnn1/1N1pk3/q7/r2B1N1N/1r3b2/1bb1n3/2r1QRbB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 g5 c4 f5 h4 d3 a4 b3 h5 d2 h6 f3 Ke3 b2 Kd4 f2 Kd5 f4 c5 g3 e5 f3 c6 g2 c7 g4 e6 g3 a5 Na6 h7 Nh6 Qe1 d1B Ke5 Bc2 Bf4 Nc5 Ne2 g1N a6 g2 Nd2 b1R a7 Rb3 Rd1 Bg7+ Kd5 Kf6 e7 Nf7 e8Q Ne6 Qf8 Kf5 Bg3 Bb2 Nf4 Ne2 Bh2 g1B Bg2 f1R Bg3 f2 Nf3 Rg8 h8B Ng7 Rh7 Kf6 Bh1 Kf5 Nh4+ Kf6 Qa5 Re1 Ra1 Rc1 Qe1 f1R Bh2 Rff3 Bg3 Rfe3 Rb1 Rb8 a8N Re7 Nb6 Ra8 Bh2 Ra4 Bg3 Kg5 Ra1 Nf5 Bd4 Rh8 Kc5 Ng7 Ra3 Rbb4 Rf3 Rb3 Rf1 Rbe3 Bf2 d6+ Kb5 Bg4 c8R Qc7 Rd8 Rd3 Nc8 Qc3 Kb6 Bf3 Bfe3 Re5 Bf2 Kf6 Bfe3 Qb4+ Kc7 Rb3 Ba7 Re6 Nb6 Qa5 Bb8 Re8 Bc5 Ree4 Rh5 Ree3 Re5 Ree4 Re7 Re5 Red7 Re7 Nh3 Ke5 Bd4+ Ke6 Nf4#
6B1/pn1kr3/r4bRK/b3bp1N/2NB3q/1bQRN1Q1/2nqR3/qB2b2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 e4 f5 b4 g5 h4 g3 c4 a3 h5 a2 c5 f3 h6 f2 h7 d3 Ke3 d4+ Kf3 g2 c6 d2 e5 d3 b5 g4+ Kf4 g3 c7 Bd6 b6 Nf6 Kg5 Bb7 c8N Nfd7+ Ne7 Nc5 e6 Nba6 Rh2 Nb4 Na3 Be5 Ne2 g1B Bb2 g2 Bd4 Nc2 Qe1 d1B Kh6 d2 Nf4 Rb8 Ned5 Qh4+ Nh5 Bc6 e7 Nb7 Bb2 Kd7 Bd3 f1Q Qg3 Bf2 Bd4 g1B Ne3 Rbe8 Nac4 Be1 Re2 Bh1 Rc1 Rhg8 h8Q a1B Rb1 Bc3 Rb3 Ba5 Be4 Bf6 Rd3 Bh2 Qhg7 Rgf8 Qh8 Rf7 Qhg7 Rc8 Qh8 Rc6 e8B+ Ke6 Qhg7 Re7 Bf7+ Kd7 Bg8 Qf2 Qg1 Bhe5 Q1g3 Na3 Qh8 Bb3 Qhg7 d1Q Qh8 Nc5 b7 Qa1 b8R Ra6 Rb6 Nb7 Rc6 Nc2 Re6 Re8 Rb6 Bd8 Rg6 Bdf6 Qg7+ Re7 Rdd2 Na3 Bb1 Nc2 Rd3 Qf3 Rg2 Qd1 Re2 Qd2 Qf8 Rf7 Qb4 Re7 Qc3
KR4br/1r1Q3Q/3r1Bk1/QNbR4/qbn1nbr1/ppbN3N/3q1R2/7B b - - 0 1 illegal: No proof kernel
R4B2/B3qnK1/1bN5/2qq2nN/1N2Bqkp/5Qnb/3nprqQ/R3r2Q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 g4 h5 c4 b5 f4 d5 c5 b3 c6 d3+ Ke3 b4 Kd4 e3 a5 h3 g5 Kf5 c7 h2 a6 e2 g6 e1Q g7 b2 a7 b3 Qd2 e5+ Kc3 d4+ Kc4 h4 Qg2 d2 Nh3 d1Q Bd3+ e4 Qg1 Qf6 Kd5 Nh6 g8Q Nd7 Nf2 Qde2 Ra6 Nc5 Nd2 b1Q Q1g2 b2 Ra3 Ne6 Ra2 Ng5 Qf3 Nhf7 Nf1 Qbc2 Be3 b1N Ra6 Bd7 c8N Bc5 Ra2 Rb8 a8Q Rb2 Na7 Nd2 Qgb8 Bb6 Nc6 Re8 Qab7 Qec1 Ra8 Qe7 Rg1 h1N Ng3+ Kg6 Re1 Bh3 Nh5 Ng3 f5+ Kh6 f6 Qc3 Nd1 Qg2 Nf2 Qcb4 Bc2 d3 Bc5 e3 Rg1 N3e4 Qh2 Ng3 Bb1 Qcc3 Bc2 Kg6 Rga1 Qf4 Bb1 Kf5 Bc2 Ne5 f7 Qa5 f8B Nef7 Ne4 Qa3 Nc3 Qb4 Na2 Qa3 Qe4+ Kg4 Bd4 e2 Bg1 Rb1 Nab4 Re1 Bc5 Bc7 Ba7 Bb6 Bh6 Rg8 Bf8 Rg6 Bb1 Rf6 Bc2 Nc4 Bb1 d2 Bc2 d1Q+ Bd3 Qf2 Qeh1 Nd2 Be4 Qg2 Qa6 Qfc7 Qd3 Rf2 Qc3 Qf4 Qe3 Ngf3 Qd3 Qc5+ Ke6 Qdb3+ Qd5 Qd3 Qb3 Qdb5 Qe3 Qd5+ Ke7 N3g5 Ke8 Qbc5 Qd3 Nh7 Qf3+ Kg5 Nc2 Qcd6 Bg7 Qac5 N2b4 Qdf6 Qc3 Kg4 Bh6 Qcc4 Qb3 Nhg5 Kf8 Qc1 Kg8 Qcc5 Bf8 Q6d6 Kg7 Qe7 Qf3+
5r2/bb1nQnR1/nR6/N1rB1pBb/b2qbQn1/6K1/Nq1N2p1/2QkB3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kg2 g4 c6 b3 c7 d2 h6 Ke3 e5 d4 e6 b4 h7 b2 e7 d3 e8N b3 Rh3 f3+ Kh1 f2 Kg2 Na6 Nf3 Nh6 Ne5 Bb7+ Nf3 Rc8 a8Q Qd4 Qb8 Nf7 Rh2 Bc5 Ra4 Rf8 h8B Ba7 Be2 f1N Rh4 Nh2 Nc3 b1Q Rc4 b2 Rc6 Qc2 Rhh6 b1B Nd6 Qb2 Rb6 Bc2 Na2 Ba4 Kg1 g2 Qe1 Bac6 Re6+ Be4 Re7 Qa1 Bb2 d1B Bc3 d2 Bf6 Qb2 Bc4+ Be2 Ba5 d1B Nd2 Ba4 Qc1 Bf3 Bd5 Bfd1 Bg5+ Ke2+ Be3 Ke1 Qc5 Be2 N6c4 Kd1 Kf2 g1N Kg3 Ngf3 Bg5 N3e5 Bc3 Nd7 Na5 Nh8 Rh7 Nf7 Qe7 B2f3 Rg7 Be2 Kf4 g3 Bb4 g2 Kg3 Ng4 Bc3 Rcd8 c8Q B2f3 Qc4 Rc8 Qf4 Rc7 Nb1 Rc5 Be1 Ngh6 Qf1 Bh5 Nd2 Ng4 Qc4 Rd8 Qc3 Rf8 Qc1+
1b2N1bR/1rb1kn1q/Br1b1bnp/6NQ/5R2/2qR1Q1r/Np2r3/3KB1Q1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 c5 f4 b5 a4 e5 d4 h3 g5 c3 g6 c2 a5 h2 g7 c4 a6 c3 a7 b3 d5 e3 f5 b4 d6 e2 f6 e4 Be3 c1B Nd2 c2 Ra3 b2 Bc5 b1R Ra4 b3 Bd4 Qc7 Nh3 Bb2 Nf3 c1B Nh4 Ne7 g8R Qc3+ Qd2 Be6 Ng2 Ng6 Bf2 Nd7 Ngf4 Rb8 a8N Rb7 Nd5 Nde5 Nb4 Nf7 d7+ Kd8 Rg1 h1Q Nc7 Bc4 Ne8 Bd6 Ng5 Ba1 Ra6 Bb8 Na2 Ba3+ Nc1 B1b2 Ra4 Bad6 Rg3 Bdc7 Re3 Ba3 Bh4 Bad6 Rd3 Rb2 Na2 Be6 Kf2 e1B+ Ke2 e3 Kd1 Beg3 Rb4 Bge5 Qf2 Re2 Rf4 b2 Qg1 Qe4 Bg2 h6 Be1 Rh7 Rf5 Rb6 Bf1 Rh2 Rf8 Rh3 Rf4 Qf5 Rh8 Bd5 Bd2 e2+ Ke1 Nf8 Qg2 Bc5 Nf3 Ng5 Re3 Be7 f7 Rg7 Qg1 Qh7 Rh4 Ng6 f8Q Bg8 Qf5 B5f6 Rf4 Ba3 Qfg4 Re7 Qh5 Nf7 Ng5 Bce5 Ref3 Ree6 Re3 Rb7 Rg3 Ke7 d8Q+ Kf8 Qd7 Reb6 Qd5 Bec7 Re3 Bad6 Qdf3 Qe5 Bc3 Ke7 Kd2 e1R Ba6 Re2+ Kd1 Rf2 Bb4 Re2 Rd3 Qc5 Bd2 Qc3 Be1
1B3NK1/3b2nr/1rb1pq1q/r1r3p1/1B1N2k1/3RRnb1/R5rQ/2QBQ2b b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 c4 Ke6 f4 Kf5 h4 d5 a4 g5 c5 b5 c6 d3 Ke3 g3 Kd4 e6 h5 b3 h6 b4 a5 e3 c7 d2 h7 e2 a6 e1Q a7 b2 Bg2 b3 Ra2 Nd7 Qe2 d1B Be3 Ne7 Nd2 b1B Qf1 b2 Nh3 Ne5 Nb3 Bd7 c8Q Bf3 Qc1 Kg4 f5 Bbe4 f6 b1R f7 Bg7 f8B Nf5+ Kc5 d4 Bf4 d3 Nd4 d2 Bd6 Qe2 Qfe1 Bec6 Bf1 Qf2 Be2 g2 Bh2 g1R Nf4 Qg8 Ng6 Rb6 Nf8 Bf6 Bg3 Qg6 Rh3 Ng7 Bb8 Bd8 Kd6 Bc7+ Ke7 Qh2 Ra3 Qf5 Rd3 Qh1 Qb2 d1R Bh2 Rb1 Qbc1 R1b5 Bd1 Rd5 Bf4 Rc5 Bd2 Qh2 Bb4 Qg6 Ba4 Bh1 Rhe3 Nf3 Bc2 Rg2 Bd1 Qe8+ Kf6 Qd8+ Kg6 Bg3 Kf7 Rg8 h8Q Qh4 Qh7 Rh8 Qh6 Rh7 Kg8 Qh2 Qcc3 Qh5 Qc1 Qg6 Qh2 Qdf6 Bc7 Qh6 Bf4 Rc8 a8R Re8 Ra1 Ra8 Ra2 Raa5 Bb8
K1QQn3/n3r2p/r3BQ1r/2Bkq3/bp1brn2/2R3N1/3B3N/1n2nNRq b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Ke6 a4 b5 g4 d5 f4 d3 Ke3 h3 Kd4 e3 Kc5 d2 a5 e2 a6 e1N a7 h2 g5 d4 g6 b3 g7 b4 Bd3 b2 Ra6+ Nc6 Ra3 Ng2 Ne2 Qd5+ Kb6 Bd7 Kb7 Nf6 g8N Bg7 c5 Ne8 Rg1 h1R Rc3 Rh6 Qf1 d1Q Nd2 b1N Bb5 d3 Nf6 Qe5 Ng4 Kd5 f5 Nf4 f6 Rf8 Qf2 Rf7 Nf1 d2 Ngh2 e6 Qh4 Re7 f7 Qe1 f8B d1R Ba4 Rd4 Neg3 Re4 Bd2 Qd1 Qg5 Qf3 Qf5 Qh1 Qg6 Qg5 Bb5 Bd4 Qf6 e5 Ba4 Re1 Bb5 e4 Ba4 e3 Bb5 Nb8 c6 e2 c7 Qe5 c8Q Nc6 Qd8 Rc8 a8Q Na7 Qb8 Rc6 Ka8 Ra6 Ba4 Rf7 Bd6 Re7 Qbc8 Bb5 Bc2 Ba4 Bf5 Rc1 Bg4 e1N Bd7 Rc2 Bc5 Rb2 Be3 Re2 Bd2 Re4 Be6#
bq1B1k2/rnn1bRrp/QrN3p1/1Q1R2N1/R7/2Qqb1K1/r3r1bN/7B b - - 0 1 illegal: No possible last move
n1bB1Knr/2Qp1nRb/1R1Rk1q1/Q7/pb1nB1q1/2N4b/1b2N2r/1Q1B4 b - - 0 1 illegal: No possible last move
3bR1qn/1bNn1r1r/1bRrBBnN/2B5/4b3/2p1RNqk/p3Q3/1QK3n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Ke6 e4 h5 d4 c5 Kd2 a5 g5 f5 b5 f3 b6 f2 b7 h3 e5 c3+ Kc2 h4 g6 a3 g7 c4 Bg2 f1R Nf3 f4 d5+ Kf5 e6 Kg4 e7 a4 e8N a2 d6 a3 d7 h2 Qd4 h3 Qe3 Ra6 Qe5 Rh7 Nd6 Ne7 g8R+ Ng6 Qd4 Be7 Ne8 Rd6 Ng5 Nh8 Rg1 h1Q Bb2 h2 Qf2 f3 Qb6 f2 Be4+ Qg2 Ne6+ Kh3 Rf8 h1B N6c7 Qg3 Qe3 Bg5 Bd3 Be4 Ng7 Be7 Rf6 Qg8 d8B Nd7 b8Q Bcb7 Re6 Bf6 Nd2 Bg5 Rc1 a1B Nf5 a2 Re1 Be7 Kc1 c2 Ba3 Bd4 Rg2 Bb6 Qe2 Bf6 Re8 Be7 Kb2 c1N Bc5 c3+ Kc2 Bg5 Nh6 Bf6 Nf3 Be7 Qe3 Ne2 Rg1 Nf4 Qe2 Bh4 Kc1 Nfg6 Bc4 Bf6 Be7 Bh4 Bf8 Bd8 Be7 Rf7 Rg2 Rh1 Bf6 f1N Rg1 Nd2 Be6+ Bf5 Qd1 Rh2 Re3 Rh1 Qe2 Rh2 Nh4 Nf3 Re1 Ng1 Nf3 Qg4 Rd1 Bfe4 Rd4 Rh1 Rc4 Rh2 Bb4 Rh1 Rc6 Rh2 Bc5 Rh1 Bc4 Qg3 Be6+ Bf5 Qc8 Ndf8 Bd7 Rh2 Ng4 Bb1 Qc4 Kg2 Bf5 Rhh7 Nh6 Bd3 Bg4 Bc2 Qf5 Nd7 Qfd3 Bb1 Be6 Bc2 Qb3 Bb1 Qdb5 Bc2 Qb1 Be4 Nf5 Kh3 Qe2 Qf4 Nh6+ Qg4 Bd5 Qg3 Be6+
Q1B3R1/rrBq2q1/b3nN2/1N1Rq1r1/5n2/pr4pq/2BQQN1b/1bK2k2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 b4 Kf6 c4 Kg5 e4 Kh4 h3 Kg3 c5 Kf2 c6 g5 h4 a5 b5 d5 b6 f5 h5 d3 b7 f3 c7 g3 h6 a3 e5 g2 e6 a4 h7 g4 e7 d4 e8Q f4 Rh5 a2 Be2 a3 Qc2 Ne7 Qc3 Qd7 Bb2 Nd5 Rg5 Qg7 Rf5 Ra7 Kd1 d2 Bc1 Nc6 b8Q Bd6 Qb5 Ba6 c8B Nd8 Rf6 Ne6 Kc2 d1B+ Kd2 d3 Qcb3 Bc2 Bd1 Kf1 Nc3 f2 Rh6 f3 Nh3 g1R Ne4 Bh2 Q3b4 Ndf4 Rg6 Bb1 Nf6 g3 Qd5 Rg8 Bc2 Rh1 Kd1 d2 h8N Rg1 Qa8 Rb7 Nd7 Qe5 Rg4 Rg5 Nf6 Qe4 Qeb5+ Kg2+ Qf1+ Kh1 Bb2 Ra7 Be5 Rh5 Ba4 Bbd3 Rb1 a1Q Rg7 Rg5 Qe1 Kg2 Bd6 f1Q Nd5 f2 Rg8 Qg7 Nf7 Qee5 Bc7 Bg6 Bb3 Qd3 Qc4 f1Q Nf6+ Be4 Ra1 Qd7 Nd6 Rh1 Qd3 Rg1 Kc2 d1R Nf2 Rb1 Qe2 Rh1 Ba4 Rbb7 Rd1 Kg1 Rd2 Qh3 Nb5 Kg2 Bb3 Rb1 Rd1 Rb2+ Kc1 Bh7 Qd6 Bb1 Bc2 Rb3 Rd4 Kg1 Qb4 Kg2 Qbd2 Kg1 Rd5 Kg2 Qee3 Kf1 Qee2+
2k1Bq2/bN3b2/rr3Q2/1bBRnrn1/p1N1p2K/R1r1q3/nQ4N1/B4nR1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 e5 Kf2 d5 b4 Kd7 c4 h5 g4 a5 b5 d3 b6 d4 c5 e3+ Kf3 h3 Kg3 e4 g5 a3 b7 h2 f5 h4+ Kg4 a4 g6 e2 g7 e1Q f6 a2 f7 h3 Qe2 d2 Qe3 d1N Qe2 d3 Nc3 d2 Qb5+ Nc6 b8R Qe3 Qb2 Ne5+ Kf5 Ba6 Be2 Nf6 g8Q Rh6 Bh5 Bb5 Qg5 Nh7 Qf6 Ra6 Nd5 Nc3 Nf3 d1B Ne1 Ng5 Rg1 h1R Ng2 h2 Nb6+ Kc7 c6 Bb3 Nc4 Bc5 f8B Ba7 Rb7+ Kc8 Bc5 Qf8 Rd7 Rg6 c7 Rb6 Rb1 a1R Rd5 Ra3 Ra1 Na2 Bd2 Rh6 Be8 Rh5 Bc3 Ra6 Rgb1 Rg1 Rf1 h1N Rf3 Rb1 Rh3 Nd7 Kg4 Ng3 Rh1 Nf1 Rg1 Bc2 Be5 Rc3 Bed4 Bb3 Be5 Nc1 Ra3 Na2 Bed4 Nh7 Be5 Rf5 Kh4 Ng5 Bed4 Kb7 c8N Ne5 N8d6+ Kb8 Nb7 Kc8 Nd2 B3c4 Rd7 Bd5 Nc4 Bf7 Rd5 Bd7 Qf2 Rbb6 Qb2 Bb5 Qc1 Rb3 Ba1 Rc3 Qb2
R1B2nB1/B1R1Kn2/1q1n1n1r/4pNNr/1bbQ2NR/1k6/3pr3/r1qQ3q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 h5 f5 e5 a5 b5 a6 e3+ Kd3 h3 c3 h2 f6 h4 g5 h3 a7 b3 g6 e2 g7 e1N+ Kd2 b4 f7 d3 Ke3 Kc4 Ke4 d5+ Ke3 d4+ Ke4 b2 Qh5 b3 Qe2 Be6 Ra6 Rh5 Qd1 Qb6 Nf3 Bb4 f8Q Nd7 Nh4 Nf3 Qd6 Nf8 Be3 Rc8 Bg2 d2 a8R d3 R6a7 Bf7 Bg1 Ng5+ Kf5 Nf6 g8N Rb8 Nh6 Rd8 Qc1 d1N Ng4 Nf2 Qd1 N2e4 Bc5 Bg8 Rc7 Rh6 Bf3 Nf7 Qd7 d2 Qa4 Rd5 Qd7 Rd3 Qd4+ Kb5 Bg2 Re3 Bf1+ Re2 Bg2 Qd6 Ba7 Ka4 c4 Qb6 Nc3+ Ka3 c5 b1R c6 b2 Bf1 Ra1 Bg2 b1Q Bf1 Rg2 Bc4 Re2 Bd5 Qc1 Ba2 Nc5 Ne4 Nb7 Ng5 Rh5 Rf1 h1R Rf4 h2 Bb3 N8h7 Ke6 Nbd6 Ke7 Nf8 Ba2 Rg1 Nf5 h1Q Rb7 Rg3 c7 Rgh3 c8B Rh6 Rc7 R3h5 Rc5 Nh8 Rc7 Bc4 Nge3 Nhf7 Rh4 Ba6 Bd5 Bc4 Ng4 Ka2 Q1g1 Kb3 Qe1 Nd8 Bg8 N8f7 Qd1+
n2N1n2/2bk1b1R/1r1q2p1/bpq3Nn/3Q1rb1/1Q6/rBB2n1B/R3R1KQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 h4 b5 a4 f5 e4 g3+ Kg2 d3 c4 d2 h5 g6 a5 b3 e5 d4 a6 b2 a7 f3+ Kh3 d3 h6 f2 Kg2 f4 c5 Kd7 h7 f3+ Kh3 g2 Kh2 Nf6 Ra3 Qb6 Ne2 g1B+ Kh3 Nd5 Ra1 Bd6 Nbc3 b1B Bb2 Bc7 Ne4 Ba2 Qb3 d1Q Nf4 d2 Bd3 f1N Ne6 f2 Kg2 Ng3 Nd8 f1R Ng5 Nh5 Bc2 Rf4 Rh4 Re8 h8B Re6 Rh3 Bd4 Bf6 Bc3 c6+ Ke8 Be7 Nd7 Bd6 Qc5 Rh4 Ref6 e6 Nf8 e7 B3a5 Kh2 Bg4 Bde5 Ng7 Rh7 Nh5 Bd6 Nb6 Bde5 Bb8 c7 Kd7 c8R Bc7 Bd6 Rb8 a8Q Ra4 Qad5 Rff4 Qh1 Na8 Kg2 Rb6 Rb8 Rfe4 Bh2 Rf4 e8Q+ Kd6 Qc3 Bf7 Qee5+ Kd7 Qb3 Ra2 Qed5+ Qd6 Qe4 Qc1 Qd4 d1N Rb7 Nf2 Ra7 Qe3 Kg1 Bd2 Ra4 Ba5 Rc4 Qe5 Rc3 Qed5 Re3 Q5c5 Ree1
b2R3N/knK2Nqq/4Rpbb/rq4p1/1q2n3/n1RB1r2/Q2B1Q2/N1B1b3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 Kd3 Kd7 c4 Kc6 h4 Kb6 e4 g5 a4 g3 h5 g2 e5 f3 e6 b3 h6 f2 h7 b2 e7 Bf5+ Kd2 d3 Ke3 d4+ Kf3 d2 e8Q d3 Ra3 Qd6 Rh5 Na6 Nh3 g1B Qde1 d1B+ Q8e2 d2 Nf4 Nf6 Ng6 Nc5 a5+ Ka6 Rh3 b5 Re3 b4 Na3 b1N Re6 b3 Nc2 b2 Na1 Na3 Rg3 Rg8 h8B b1Q Bg7 Bb3 Nh8 d1Q Rh3 Qd4 Qa2 Kb7 a6+ Kb6 a7 Qe5 Be2 f1Q+ Qf2 Bbc2 Rg3 Qh3 Qf1 Qh7 Qe1 Bd4 Qf2 Bc3 Rh3 Qb5 Rg3 Rb8 a8R Be1 Bf1 Rb7 Rd8 Ra7 Be2 Bce4+ Ke3 Nb3 c5+ Ka6 c6 Na5 c7 Bg6 c8N Ra8 Ree8 Qb4 Nd6 Ra7 Re6 Ba8+ Ne4+ Kb7 Rf3 Qeb2 Nd6+ Ka6 Bf1 Ne4 Bc3 Bh6 B3d2 Nb7 Rg3 Rf8 Bc4 Q2b3+ Kd4 Kb6 Re3 Ra5 Rd3 Ka7 Rg3 Nec5 Kd5 Q3c3 Rge3 Qf6 Rc3 Qfg7 Bd3 Re8 Rf6 Re3 Re6 f6 Ndf7 Rg3 Bc4 Rf3 Bd3 Q5c4+ Kc6 Qbb5+ Kc7 Qcb4 Qg2 Ne4 Qf2+
1Qb2K2/1N1R2Q1/B2pqn1N/nNb5/2BRRrqb/p5q1/kb1n4/r2n2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Kc4 f5 h4 a5 e4 g5 b4 f3 h5 a3 b5 a2 h6 f2 c3 a4 b6 d3 h7 d2 b7 f4 Kb5 g3 e5+ Kd5 e6 d6 e7 f3 e8R g2 Na3 g4 Ne2 g1B Rh4 g3 Ree4 g2 Nd4 Nc6 b8Q Qf6 Nb3 Na5 Nc5 Qe6 Nb7 Nf6 Be2 Rg8 h8N f1Q Nf7 f2 Nh6 Qe1 Kb6 f1N+ Kc7 Bc5 Kd8 g1Q Nb5 Qgg4 c4+ Kc6 Bb2 Qeg3 Bd4 a3 Rc1 a1B Bg1 Bb2 Qb3 d1N Qc3 Nd2 Qe5 Be3 c5 Rh8 Qc3 Kd5 c6 Bc5 c7 Rg8 Rc2 Rg5 Bf1 Rf5 Bd3 Rf4 Be2 Ra6 Rc1 Rc6 Rb1 Nh5 Qg7 Be7+ Ke8 Bef6+ Kf8 Bg5+ Nf5 Nf6 Rh7 Bh4 Nh6 Bb6 Bd3 Rc1 Bf1 Bc5 Be2 Be5 Rbb4 Bb2 Ra4 Bd7 c8B Rb1 Nd8 Ra1 Ba6 Bc8 Bd3 Ba7 Rad4+ Kc5 Bc4 Kb4 Qg8 Bc5 Rd7 Ka4 Qg7 Kb4 Bd3+ Kb3 Nb7 Ka2 Bc4+
2nb1K2/1b2QRpR/N2B3R/rbq5/n3rn2/5Qnp/BN1bQN2/5kqr b - - 0 1 illegal: No proof kernel
6n1/rqn2NBq/2p1BrpR/p2NN2Q/k1b4n/2b4Q/1BQ1r2b/1KRq4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 Kd7 Kd2 Kc6 Kc2 Kb5 h4 a5 e4 f5 b4 a3 d5 a2 h5 g6 h6 c6 d6 f3 e5 f2 h7 g3 e6 f4 e7 g2 e8Q f3 d7 Ka4 b5 c3 b6 Qe7 d8B Ra7 b7 Be6 Bc7 Na6 b8Q Bc4 Bh2 Nc7 Be2 f1R Be5 f2 Nf3 g1N Qec8 Qd7 Bf6 Bd6 Qb2 Bh2 Ne5 Nf3 Bg7 Nh4 Bg4 Re1 Be6 f1Q Qg4 Qff7 Qh5 Qde7 Qd7 Qb4 Qd3 Qb7 Qh3 Qd7 Qb6 Qe7 Bb2 Re2+ Kc1 c2 Qc5 Nf6 Qf2 Rf8 h8N Ng8 Qff5 Rf6 Nc3+ Kb4 Nd5+ Ka4 Rb1 a1B Nhf7 Qd7 Ba3 Bc3 Qfd3 Bb4 Kb2 Qe7 Rbc1 Qd7 Ka1 Bc3+ Bb2 Qe7 Rcd1 c1Q+ Qb1 Qg5 Rc1 Qd2 Qe4 Qd1 Kb1 Qd7 Qc2+ Kb5 Bh6 Na8 Q3f3 Bg3 Qhf5 Ng2 Nd8 Qh7 Ndf7 Nc7 Bg7 Bf4 Rh4 Bh2 Rh6 Nh4 Qg5 Be1 Qgh5 Bc3 Qd2 Ka4 Qh3 Rf3 Qd3 Rf6 Qc2+
2r1NRn1/4B1nb/B1R4q/3Kbq2/2Nbpp1q/BN1pQ1Qb/5b2/4kr1R b - - 0 1 illegal: No proof kernel
N1R2B1q/4Q1n1/4Br2/r1b1B1p1/1n1RK1b1/1Q1r2p1/2Q1Nqp1/b1bk1bR1 b - - 0 1 illegal: No possible last move
q4Q2/Qr1bKR2/6Q1/3bp3/B3p1pn/1r1NBk1q/NB1b1n2/Nn2Rb1b b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 c4 Kf6 f4 Kf5 a4 d5 h4 e5 h5 b5 h6 g5 h7 b3 a5 d3 Kc3 d2 a6 d4+ Kb2 d3 Kc3 g3 c5 g2 Kb4 b2 a7 g4 Nh3 g1Q Ra4 Qg3 Nf2 Bh6 c6 Qh3 Kc5 b4 c7 b3 Na3 b1N Nc2 b2 Na1 Bd7 Kd6 Ne7 c8N Nbc6 Nb6 Ng6 Nd5 Nb4 Nc3 Rb8 a8Q Nh4 Ra7 Rb7 Na2 Qc8 Qe2 d1B Ke7 d2 Qa6 Bb3 Nd3 d1B Be3 Bd5 Qb8 Rg8 h8Q Bf3 Be2 Rf8 Re1 Bh1 Bd1 Qc6 Qd6 Rfb8 Ba4 Qc8 Ndc1 Nd3 Qf8+ Bf7 Qa5 Nf2 Nd3 Rb3 Rc7 R8b7 Qa7 Qa8 Qdc5 Kg6 f5+ Kh5 f6 Bd5 f7 Bf4 Qc6 Kg5 Bd4 Bd2 Bc5 Na3 Bd4 b1B Bb2 Bc2 Qca6 Nb1 Qe6 Bd1 Qea6 Be2 Q6b6 Nf3 Qg6+ Kh4 Qfh6+ Kg3 f8B Kg2 Qh8 Nh4 Bh6 Kf3 Be3 Bf1 Qf8+ Bf5 Kf6 Bfe6 Rf7 Bd7 Ke7+
R4B2/1NrnK3/R1N1pNr1/nb1p2rQ/6Qr/n1pR1B1q/2kq3r/Q5b1 b - - 0 1 illegal: No proof kernel
QQQ1q2n/1q2pn1q/qb2K1bq/1p1r4/1r3RN1/1N1R3p/1k4B1/4BBRn b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 g4 Kd5 a4 Kc4 c3 h5 a5 d5 f5 b5 a6 b3 f6 d3+ Ke3 b2 Kf4 e3 Ke5 d4 g5 h3 a7 h4 g6 h2 f7 h3 g7 e2 Bh6 e1Q+ Be3 Qe8 Bg2 d2 Qc1 Kb3 c4 d1Q c5 d3 c6 d2 c7 Rh4 Nc3 b1Q Be4 Nc6+ Kd5 Bf5 c8R Qf3 Na4 d1Q+ Bd2 Bg6 Rd8 Nh6 g8B Qee3 Ke6 Bg7 f8Q Ne5 Be1 Nef7 Qc8 Nh8 Nc5+ Kb2 Nb3 N6f7 Ra4 Qh6 Rd3 Bd4 Rb4 Qg2 Nf3 Bb6 Rg1 h1N Nh2 Qdd2 Rc4 Qa5 Ng4 Qa6 Bh7 Rb8 a8Q Rb7 Bd5 Rd7 Rf4 Qbc2 Bc4 Qgb7 Bg8 Rd4 Bd5 Rb4 Bg2 Rh5 Qcb8 Nd6 Qf5 Ndf7 Qc5 Rd5 Qcc8 Qc3 Bf1 Qcg7 Bh7 Bh5+ Bg6 Qhh7 Bf5 Bg6 Be4 Qgh6 Beg2
2k1qqqN/R1Rp1r2/3pnQ2/1rn5/BBq3pQ/R2n2b1/4q1bN/K3NQ2 b - - 0 1 legal: proof: f4 e5 d4 exf4 b4 h5 g4 hxg4 d5 a5 d6 axb4 Ba3 cxd6 Bb2 Ra5 Bc1 Ra8 Kd2 g5 h4 f5 a4 b5 c4 g3 Kc2 f3 Kb2 f4 e4 g2 a5 b3 c5 b4 a6 f2 h5 f3 c6 g4 a7 Nh6 c7 Na6 e5 Nf7 h6 Bg7 h7 Rb8 a8Q Ng5 Ne2 g1N Bf4 Rb5 Ra5 N1h3 Bg2 f1Q Bd2 f2 Ng1 Bb7 c8R Ne6 Nf3 Nhf4 Ne1 Qc4 Bc6 f1Q Rc7 Qfe2 Ka1 Nac5 Ra3 Rf8 h8N Rf7 Qa5 Ba8 Ra7 Nfd3 Bc3 Bf6 Nd2 Bh4 Ndf3 Bg3 Nh2 Qc8 Qa6 Kd8 Qb1 Bb7 Qb2 Kc7 Bd2 Qe8 Rf1 Kc8 Qd4 Ra5 Ba4 Rb5 Qf4 Qf8 Qf6 b2+ Kb1 Nd8 e6 Qg8 e7 Nde6 Qa5 Bg2 e8Q+ Nd8 Qee7 Nde6 Rb7 Qf8 Rb3 Nc7 Nc2 Qee6 Qh4 Rg7 Qef6 Qeg8 Qb6 Ra5 Rc3 Rh7 Bb3 Rf7 Qa7 Rb5 Qa1 Qe6 Ka2 Qee8 Rf4 N7e6 Qf1 Qfg7 Ne1 Q7f8 Bc2 b3+ Ka3 b1Q Ra4 b2 Raa7 Qd1 Ka2 Qf3 Ba4 Qd5+ Rb3 Qc4 Bb4 b1Q+ Ka3 Qd1 Ka2 Qe4 Ra3 Qde2+ Ka1 Qc4 Rc7+
RQQ1K1R1/b1p5/1b1B1kr1/1n2p1q1/R1N2p2/1N4n1/rb2Bq1N/1brQb3 b - - 0 1 illegal: No proof kernel
n2Rr1n1/p3pb1k/3bBQr1/1N3R2/NB1Rr2B/r1q2rQK/1qp5/1qQ5 b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kf7 g4 Kg6 b4 h5 f4 c5 Kf2 h3 Kg3 e3 g5 h4+ Kh2 c3 d5 c2 f5+ Kh7 b5 e2 d6 e1R d7 a3 b6 a2 f6 c4 f7 c3 b7 Re4 Qd3 Qc7+ Qg3 Na6 b8B Bg7 d8R Be5 f8Q Be6 Bc4 Bf7 Ba3 c1Q Be6 c2 Bb4 Bd6 Ne2 Qb2 Na3 Qcc3 Rhf1 Nc7 Rad1 a1R Nb5 Ra4 Rd4 Ra3 Kg1 h2+ Kg2 h1R Rf5 Rf1 Kh3 Bg6 Qf6 Bf7 Qe3 Rff4 Qg3 Rf3 g6+ Kh6 g7+ Kh7 Kg2 h3+ Kh2 Nh6 Qf4 Re8 Qg3 Ng8 Qf4 Qd3 Nec3 Qe3 Na4 Qec3 Kh1 h2 Kg2 Nd5 Bc7 Nb6 Qc1 Rc8 Bb8 Rc6 Bc7 Na8 Bb8 Bc5 Bg3 Bd6 Kh3 Re5 Kg4 h1Q Bh4 Re2 Qe3 Qhb1 Qc1 Bg3 Kh3 Re4 Bd6 Ra6 Bb4 Bd6+ Kg2 Re1 Bd5 Bb8 Qe5 Re4 Ba2 Rh6 Be6 Nf6 Qg3 Rg6 Kh2 Bd6 Kh3 Rg5 g8Q+ Kh6 Qg1 Rgg4 Qg5+ Kh7 Q1e3 Ng8 Qf6 Rg6 Qc1
1R3K2/1N2r3/R1Nb2b1/1n4rp/BBQ1rQ1R/b2p2B1/q1kqrp2/q4nQ1 b - - 0 1 illegal: No possible last move
Kn1kN1bQ/R4BqR/7n/2p5/p2RB1QB/q1Q2r1q/p2n1r2/1Nr1r1b1 b - - 0 1 illegal: No possible last move
1Q1b1bKR/1qnR1NQN/2R1qNBp/3r2B1/6p1/2B4b/1r2p1q1/r1n2qk1 b - - 0 1 illegal: No proof kernel
Bkq1Nq2/b1r3bK/Q3pr2/1RqQ2Q1/2p3q1/5N1p/bnr2B2/N1nR2B1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 b5 g4 h5 Kg6 b3 f4 b4 a4 h3 d4 h4 g5 h2 d5 h3 f5 e3 a5 e2 a6 e1B f6 c3 f7 c2 a7 b2 Nf3 b3 Qe2 Nc6 Qb5 Nd4 Qa4 Rh7 Bd2 c1R Qa2 Nh6 Ne5 Ng4 Bb5 Bf2 Re1 h1Q Rd1 Qf3 Qa6 Ne3 Be1 Be6 Nd2 Nc4 Ra5 Qg4 Nef3 Qc8 Bc6 Rc2 Rb5 Bg7 f8B b1Q Bb7 b2 Nb3 Bg8 Na1 Qc1 Bc6 Be3 Bf2 b1Q Bb7 Rb8 a8Q Ne2 Bg1 Nb2 d6+ Kd8 d7 Kc7 d8N Ba2 Nf7 e6 Nd6 c4 Be4 Ba7 Qd5 Qcf4 Be7 Rb7 Ne8+ Kb8 Bec5 Nc1 Bb6 Rh8 Bbf2 Rf8 Kh7 Rf6 g6 Qfc7 Rf1 Qc5 Rd1 Bh6+ g7 Qf8 Qd7 Qcc5 g8Q Bg7 Qd5 Qc8 Rc5 Rc7 Ra5 Nbd3 Rc5 Qb6 Rb5 Nb2 Qd6 Bb3 Ba8 Ba2 Qd7 Bh6 Qg5 Bg7 Ra5 Qbd4 Qdd5 Qdc5 Rb5+
r4N1q/3kr2Q/qb1pnpr1/3n3K/R1Q1R3/BR1q1N1p/1Qb1r3/1Bn2N2 b - - 0 1 illegal: No possible last move, all moves rejected
rk3b1K/3qQ3/r1p1R3/6n1/Bp1N1Rn1/1B1p1qqn/1rN3bQ/2n2RBN b - - 0 1 illegal: No proof kernel
r1Br4/3bq3/p2B1QNb/p1K1Q1Np/2Q1q3/R2b4/3N1kqq/r1RnRn2 b - - 0 1 legal: proof: f4 c5 h4 g5 a4 gxh4 d4 cxd4 a5 e5 a6 exf4 Kf2 bxa6 Ke1 a5 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 g5 d5+ Kb5 f5 c4 f3 e3 a6+ Ka4 h3 c5 f4 g6 d3 b5 d4 g7 d2 b6 f2 c6 h2 c7 f3 b7 d3 Qc2 d1Q Bg2 f1B Ra3 Nc6 b8Q Nb4 Nh3 Qe1 Kb3 Nf6 Kc4 Na2 g8N Bd7 c8R Nc3 Qd6 Qe7 Kc5 Nd1 Qb3 d2 Ng5+ Kf5 e4+ Kg4 e5 Kg3 e6+ Kf2 Qa2 Qe4 Qc4 Bh6 Bh3 Bd3 Re1 h1Q Bb2 Ng4 Be5 Nh2 Rc7 Qg7 e7 Nf1 e8Q Qh2 Ne7 Qf7 Qb8 Rd8 Ng6 Qe7 Qbb5 Nb2 Qb6 d1R Nd2 Ra1 Qbb5 Nd1 Be6 Be8 Bc8 Bd7 Bf4 Qg3 Qb2 Qh2 Qf6 Kg2 Qg8 f2 Kb6 Nfe3 Rc1 f1Q Kc5 Kf2 Qgf7 Qfg2 Qc4 Qg7 Qde7 Nf1 Qee6 Qe7+ Bd6+ Kg1 Qfe5 Kf2 Q6f6+
6kq/nB2pR2/QB4Q1/r1pN3q/p4bnR/4NqbR/Q3B1r1/1q1bn2K b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 d4 Kf7 b4 h5 f4 a5 Kf2 c3 g4 h3 g5 c2 b5 c6 g6+ Kg7 f5 h2 Kg2 a3 d5 h4 d6 a2 b6 a4 b7 e3 f6+ Kh6 g7 Kh7 f7 e2 d7 Ra5 Na3 Nh6 Qd6 Ng4 Nh3 Rg8 Be3 c1B Bb6 c5 Nc2 Bf4 Ne3 Bg3 Nf4 Nc6 b8Q Na7 Qa8 Bb7+ Nfd5 e1N+ Kh3 Qc8 d8Q Qf5 Qac8 Qh5 Be2 Ba6 Rd1 a1Q Rd4 Qb1 Qb7 Bc4 Qa6 Bb3 Qe6 Bd1 Qe8 Nc2 Kg2 h3+ Kf1 Ne1 Rb4 Rh8 g8B+ Kg7 Bh7 Rg8 Be4 Kh8 Rd4 Bh6 f8R Bhf4 B4f3 Kh7 Rf7+ Rg7 Q8c6 Kg8 Qg6 Qh8 Qc2 Qh5 Qa2 Qh8 Qg6 Qh5 Rg1 h1Q Rc4 h2 Be4 Bf2 Rb4 Qf3 Rg3 Ne5 Rh3 h1Q+ Qg1 Qh2 Qg6 Ng4 Rc4 Qhg3 Rd4 Qgh4 Rc4 B2g3+ Kg1 Qf2+ Kh1 Qf6 Bg2 Qf3 Re4 Qfh4 Re5 Qh8 Rh5 Qg5 R5h4 Qgh5 Qf6 Rg5 Qg6+ Qg7 Qb2 Bf2 Nc3 Nh2 Qa2 Qfe4 Qge6 Qgh8 Bgf3 Rg2 Qd6 Ng4 Qh6 Qa8 Bc6 B2g3 Qhe6 Qe8 Bb7 Qc6 Qf5 Qce4 Ncd5 Qf3 Qg6+
1Qq2b1B/4nB2/3K1RB1/prrb1p1N/3R1Q2/kr1R1pb1/nN1Nb2b/b7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Kc4 a5 e4 g5 h4 f5 b4 d3 h5 f3 b5 a3 h6 a2 h7 g3 b6 g2 b7 g4 Ne2 g1B Bb2 g3 Nf4 d2 Qc1 d1R Rh4 g2 Nd2 Bh2 Nh5 g1B e5+ Kc6 e6 Bf2 c3 Bfg3 e7 Na6 b8Q Bb7 e8B Qc8 Rd4 Nb4 Bg6 Ne7 Rd3 Rg8 h8R d5+ Kd4 Kb5 c4+ Ka4 c5 Re1 c6 Re3 Kc5 d4 c7 Bd5 Rh6 Ra7 Qc4 Rb7 Rd1 a1B Be2 Re5 Kd6 Rb5 Bc3 Ka3 Bf1 Qb7 c8N Na2 Nb6 Qc8 Na4 Rg7 Nb2 Rg8 Re3 d3 Qf4 Rc5 Re4 Rh8 Rd4 Rg8 Nb3 d2 Bc4 Rb5 Rd3 Re3 Bh8 Rg7 Rf1 d1B Rd4 Re5 Nd2 Be2 Re1 Re3 Rd1 Reb3 Rd3 Bb7 Bcf7 Bd5 Bh7 Rg4 Rf6 Rh4 Bhg6 Rg4 Qe5 Rc4 Qf4 Rc7 Rc1 Rcc5 Rc4 Qe8 Rb4 Qc8 Rbd4
1NN2r1Q/b3b1KB/5nN1/1kRbr1q1/2b1pB1p/1nQ1rb2/3pB1Rr/3Q4 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 f4 Kd7 a4 Kc6 g4 e5 c4 b5 g5 h5 g6 b3 a5 d3 Ke3 b2 a6 d2 g7 d4+ Ke2 e3 Kf3 d3 Ke4 e2 c5 e1B f5 b4 f6 b3 a7 h3 f7 h2 Ra4 Nd7 Kf5 Be7 Kg6 Ba6 f8N Ngf6 g8B Bf2 Ra2 Kb5 c6 Nc5 c7 h4 c8Q e4 Nh3 Rh5 Kf7 Re5 Kg7 Be3 Rg1 h1R Nf4 Rh2 Rg5 Bb7 Be2 Bd5 N4g6 Bc4 Qc2 d1B Nd2 b1R Nd7 b2 Nb8 Nb3 Bh7 Ra1 Qg4 b1B Qc3 B3c5 Rb2 Ra3 Rc2 Bd5 Nc4 Ba2 Bf4 d2 Nb6+ Bc4 Nc8 Bd4 Bf1 Bf3 Be2 Bdc5 Qg1 Qd5 Rg2 Bb6 Nd7 Rb8 a8Q Ba7 Qd1 Qc5 Ncb6 Rf8 Nb8 Qg1 Nc8 Qe3 Bg3 Qg5 Bf4 Nc1 Qd4 Re3 Qc3 Nb3 Qd5+ Bec5 Qg8 Be7 Qh8 Bb1 Ra2 Bbd3 Ra6 Bd5 Rc6 B3c4 Rc5+
2kbQ1r1/K4RNQ/3b1n2/3bpB1b/N4pb1/r2Rn3/1R3N1p/Q2qbqB1 b - - 0 1 illegal: No proof kernel
1N1rr2r/bBKQ1Bk1/6p1/2QN1r2/QR6/p1n1pn1b/n2n3B/1R1Rr1q1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 d5 c4 e5 b4 a5 f4 g3 h5 g6 h6 a3 h7 a4 b5 a2 c5 g2 c6 a3 f5 d3+ Ke3 d2 f6 Na6 c7 Nb4 b6 Bh3 Nf3 g1N c8B Bc5+ Nd4 Nf3 b7 Qb6 Qa4 d1R b8R Ne7 Bg2 Rf1 Nc3 Kf8 f7 Kg7 Rb1 a1N Bd7 Nb3 Be8 Nbd2 Bb2 Rf2 Rhd1 Na2 Bh1 Qa7 Rb4 Rc8 Bc6 Rce8 Bb7 Qb8 Bg2 Ba7 Bf1 Qc8 Bc4 Qg4 Ba1 Qg1 Bb2 Nc8 Ba1 Nb6 Nc6 Bc8 Nb8 Bh3 Bb2 Rf1+ Ke2 d4 Nd5 e3 Kd3 e2 Bb3 Ndc4 Ke4 d3 Bc1 Rf2 Bf4 d2 Bh2 e1R+ Ne3 Na8 Kd5 e4 Kc6 Nab6 Nd5 e3 Kc7 Rff1 Qc6 Na4 Qd7 N4c3 Qa4 Nfe5 Qd7 Rf5 Qa4 Rhg8 Qd7 Nf3 h8Q+ Kf8 Qf6 Rh8 Qfc6 Kg7 Qa4 Nd6 Rdc1 d1R Bc4 Rd4 Rd1 Nde4 Bb3 Ned2 Bc4 Rde4 Bb3 Rd8 Bc4 Rhg8 Bb3 Ree8 f8Q+ Kh8 Qc5 Rgf8 Ne7 Kg7 Bf7 Rh8 Nd5
nBBqr3/3Q4/R1np1r1p/pN2rb2/1b3N2/3R1K2/rQbR4/kb2b1NB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 c4 Ke6 b4 Ke5 e4 f5 g4 h3 b5 f3 c5 f4 g5 h2 b6 h6 b7 a3 g6 d3 c6 Kd4 e5 a2 g7 d2 c7 Nf6 g8N Nc6 b8Q Nd5 e6 Bb4 e7 d6 e8R Nb6 Na3 Kc3 Ne7 Bf5 Rb1 a1B Qa4 d1B c8B Bdc2 Ke1 f2+ Ke2 f3+ Ke3 a5 Bg2 f1R Ng6 f2 Re7 Re8 Nf4 Bb2 Re4 Re5 Kf3 Rd1 Qb5 Rd2 Re2 f1R+ Rf2 Rde2 Be3 Kb3 Rd1 Ka2 Rd3 Ka1 Qa4 Be1 Nb5+ Ba3 Qb7 Rd2 Qb3 Bb4 Qd7 Rb8 Bc5 Na8 Ba7 Bb1 Qa3+ Ra2 Qb3 Rb6 Bb8 Rb7 Qe8 Rf7 Qd7 Rf6 Qc2 Bec3 Qb3 Rfe1 Rfd2 Re8 Ngh3 R1e4 Rc1 h1B Ng1 R4e5 Qa3 Bd4 Rc4 Bf2 Qc1 Be1 Rcc2 Na7 Rc7 Nc6 Ra7 Be6 Ra6 Bb3 Kg4 Bc2 Be4 Bg2 Bf3 Bf1 Bh1 Bh3+ Kf3 Bf5 Qb2+
3bB2Q/q2R1b1r/1p6/5n1n/pk1N2b1/b1rbQBR1/4NBpN/KnR2n2 b - - 0 1 illegal: No proof kernel
R1nrb3/1bKbp3/1R1Q1N1q/1k5b/1n1bp3/Q1QNr1BB/1p6/bRN4q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 b5 f4 d5 a4 Kd7 h4 Kc6 c4 g5 a5 b3 h5 g3 c5 g4 a6 b4 a7 g2 f5 b2 f6 b3 h6 g3 f7 d3+ Ke3 d4+ Kf4 d2 Ke5 d3 h7 Nd7+ Ke6 Nb6+ Ke5 Nf6 Nf3 g1Q Rh6 g2 Qc2 d1B Qd2 Kb5 c6 Nfd5 c7 Bb7 c8R Bg7+ Ke6 Qh1 f8N g1B Bh3 Nb4 Nd7 Qf8 Ne1 Bh5 Nf6 Be8 Qh2 d2 Nd3 d1B Qd6 Bdh5 Nd2 Rg8 h8Q Bd4 Rb1 Rb8 Rd8 Rc8 a8Q Rc3 Qa3 Nc8 Ne1 Re3 Nd3 Nb6 Ra8 Nc8 Nd5 Bge5 Nf6 Qg7 Rg6 Qh6 Qg7 Bf7+ Kd7 Rd8+ Kc7 Be8 Nf3 Bd7 Ng1 Be8 Ne2 Bd7 Ra1 b1B Bb2 Bc2 Nec1 Bcd1 Rb1 B1g4 Bc3 Be8 Be1 Bgd7 Bg3 Ba1 Qg8 b2 Qgb3 Bd4 Qc3 Bc5 Rg5 Nc2 Rd5 Nb4 Rd4 Ba7 Rc4 Bd4 Rc6 Qg1 Rca6 Qh1 Rb6+
1r1rQB1n/2pbb3/KR6/4NbQp/N3pQ2/kq1n3N/1B5b/1nRB1n1b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 a4 e3 Ke2 Kd7 d4 Kc6 f4 b5 g4 e5 g5 h5 a5 b3 g6 b2 f5 h3 f6 c3 Kd3 b4 Kc4 b3 a6 c2 f7 h2 g7 e2 a7 e1N Nd2 b1B Ngf3 b2 Bd3 Nf6 g8Q Nbd7 Qg5 Rb8 a8N Ne4 Ng1 Ng3 Ndf3 Qf6 Be2 Qe6+ d5+ Kd6 Bf4 c1B Qd2 Bf5 Nb6 b1N Kb5 Nd3 Ra6 Bb2 Be3 e4 Bd4 N7e5 Nh3 Ng6 Rc1 h1B Bd1 Nf1 Qde3 Ba3 Bb2 Be7 Ka5 Re8 f8B Nh8 Qd2 Bc5 Ne5 Bg1 Qdf4 Bh2 Kb5 Bd7+ Ka5 Bc6 Na4 Rec8 Rb6 Qg8 Nc3 Kc5 d6 Qb3 d7 Ba4 d8Q Bad7 Qe8 Rd8 Ng4 Kc4 Ka6 Kc5 Rf6 Kb4 Na4 Nf7 Ne5 Nh8 Ba1 Ka3 Rb6 Ne3 Bd4 Nf1 Bb2+
bq1BRr2/1Q1r2N1/2B1n1nQ/2ppQ1bR/R3rN2/K1n1B3/3k1p1q/2rn4 b - - 0 1 illegal: No proof kernel
2N1R3/K1QrR1b1/2p1q1p1/1pN1q3/1kq1B1br/2R5/b1B1Q1qn/B1nQ3b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kc6 a4 b5 h4 f5 e4 b3 e5 g6 h5 b2 h6 c3 e6 f3 Ke3 g3 a5 f2 d5+ Kc5 h7 c2 a6 g2 e7 Qd6 e8R Ra7 Na3 b1B Bd3 f1Q Ne2 Kb4 Kd4 f4 Rh3 f3 Nf4 f2 Nc4 g1Q Bb2 c1Q Ne6 Qgg5 Nb6 Qfg2 Bc2 f1B Nc5 Qe6 d6 Nd7 Rc3 Ne5 d7 Nf6 d8Q Nd3 Ra5 Rb7 a7 Ba2 a8B Ng4 Ra7 Nh2 Ba1 Be2 Qd6 Bg7+ Qe5 Bd7 Nc8 Bg4 Qe2 Bc6 Qd1 Rg8 h8Q Bcd5 Qh3 Rh8 Qe3 Rh4 Qee2 Bdf3 Raa3 Ra7 Be4 c6 Ra6 Rf7 Ra7 Qcf4 Rae7 Nc1 Ra3 Qf1 Re3 Bh1 Rc3 Qg2 Nb3 Ka3 Kc5 Qff1 Kb6 Kb4 Qc7 Qge5 Ka7 Qff4 Bf5 Qfd4+ Nc5 Qdc4 Rd7 Re7 Bfe4 Rf7 Rdd8 Rd7 Re7 Q6f5 Rg8 Qfe6 Rge8
1Q4q1/BKRnr2n/2B3p1/1b1p2R1/p2q2B1/pk3Q1r/b3N3/b1QqRr1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 c4 Kd6 e4 Kc5 b4+ Kd6 h4 f5 e5+ Kc6 e6 a5 h5 d5 c5 g6 e7 a3 e8B+ Nd7 h6 f3 h7 d3 Ke3 Kb5 Kd4 a4 c6 f4 c7 g3 Nd2 f2 Ne2 f3 Bh3 f1R Ne4 d2 Nf2 g2 Rg1 Ra6 Bg4 Re6 Nh1 Ba6 c8R f2 Rc7 Nf6 Qe1 d1B Be3 Bb3 Qc1 Bg7 Rb1 Ba2 Ra1 Rg8 h8Q Re7 Qh3 Rh8 Qf3 Rh3 Rb1 Kb6 b5 Ka5 b6 Bb5 Ra1 Kb4 b7 Kb3 b8Q Qc8 Qc5 Bh8 Re1 Bg7 Qc1 Qd8 Bf7 Qg8 Be8 Nh7+ Qf6 Ne5 Kc5 Nd7+ Kd6 Bh8 Qf5 Ba1 Ba7 Nb6 Bc6 Nd7 Rd1 Re1 Qff4 f1Q Qff8 Qf3 Qf6 Qc3 Qf3 Rf1 Re1 Qd3 Rc8 Qc3 Kc7 Qe3 Kb7 Qd3 Nc3 Qd1 Rc7 Rf2 Rgf1 g1Q Re5 Qd4 Rfe1 Rf1 Rg5 Qd1 Ne2+ Qe3 Nc3 Qed4 Ne2+
2bnN1QB/Q1qRr3/n1p2R2/p4N2/kr4b1/1pp3n1/Rb1qB1N1/1KQ1r3 b - - 0 1 illegal: No possible last move
R1b5/2q5/rp2RQ1q/1qNB2B1/2bprp1n/1r3nNQ/Bp1bk3/1R4QK b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 e4 Ke5 g4 h5 Kg2 d5 a4 f5 g5 h3+ Kh2 b6 a5 d3 a6 Kd4 e5 h4 c5 d2 g6 Ke3 e6 d4 g7 b3 a7 f3 e7 b2 e8R+ Ne7 g8Q f4 c6 f2 c7 Nd7 Qf7 Ne5 Nf3 Nf5 Bc4 f1B Kg1 Bb4 Re6 Re8 Ba2 Bc4 Ng5 h2+ Kg2 Kd3 Qg1 d1R Bd2 Nf3 Be1 Bd2 Ne4 Ke2 Qf6 Rc1 Bf2 Rc3 Be1 Rb3 Ng3+ Kd3 Nc3 h3+ Kf2 Qd7 Nce4 Qb5 Kf1 N5h4 Bf2 Rb8 a8B Rb7 Be1 Ra7 Bd5 Ra6 Rb1 Be3 Bb4 Bd2 Bf8 Re7 Bh6 Re8 Bg5 Re7 Qf2 Re8 Rg1 h1Q Qg2 h2 Nc5+ Kc3+ Kf2 Re7 Rge1 Re8 R1e4 Qc1 Qg1 h1Q Re1 Qc2 Ra1 Re7 Reb1 Qh3 Rd6 Re4 Re6 Bd7 c8Q Qc1 Qch8 Bc8 Re7 Qe6 Qh7 Qd6 Re6 Qf8 Qhf5 Qh6 Qh3 Qc2 Na4+ Kd3 Kf1 Nf5 Kg2 N5h4+ Kh1 Qc3 Nh5 Qc2 Nc5+ Ke2 Na4 Ra8 Ng3+ Kd3 Bc6 Bd5 Bb7 Qc7 Nc5+ Kc3 Bc6 Bc4 Bd5 Ra4 Re1 Ra8 Bb1 Ra7 Ra3 Ra4 Ba2 Ra8 Nd7 Kd3 Rb1 Ra4 Nf5 Ke2 Nc5 Rab4 Ra6 Ra4 Ra8 Ra6 Ng3+
2K1Q2n/2Q1p3/2Qp1qpN/4N1BN/2nRqr2/4pbb1/r2B3n/qkRB2r1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 c4 Ke5 f4+ Kf5 a4 b5 c5 d3+ Ke3 d6 Kd4 g6 Kd5 g3 h5 b3 h6 d2 h7 b4 a5 e3 c6 g2 a6 b2 a7 b3 c7 Nc6 Nf3 g1N Rh4 Na5 Be2 Nh6 Ne5 Nc4 Kc6 Nf7 Nc3 b1R Ne4 b2 Nf6 Bg7 Qa4 d1Q Bd2 Rf8 h8N Nf3 Nh5 Ke4 Qa5 Qc1 Bd1 Bg4 Kb7 Nh2 c8Q Bf3 Qac7 Qd7 Qe8 Qe6 Rg4 Qf6 Rh4 Bh6 f5+ Bf4 Rg4 Qc2 Rh4 Kd4+ Qec6 Qe4 Rg4 Rae8 a8Q Bg3 Qad8 Rc1 Kc8 b1Q Rf4 Qb2 Rb1 Qa1 Rg4 Rc2 Rc1 Ra2 Rf4 Rg8 Rg4 Ref8 Qde8 Rg7 Rh4 Rh7 Rg4 Ng5 Nhf7 Rhh8 Nh6 Nf7 Nd7 Kd3 Rh4 Rh7 Rf4 Nh8 Rh4 Qfe5 f6 Q5d4 f7 Qf6 Bc3 Rg8 f8B Rgg7 Nf5 Rf7 Bh6 Rf8 Bg5 Rff7 Nhg7 Rh6 Rf4 Rh4 Nh6 Rg4 Nh5 Rf8 Rb1 Rf7 Bd2 Rf8 Be2+ Kc2 Rg1 Kb2 Bd1 Kb1 Rf1 Bf2 Ne5 Rg1 Rh4 Bg3 Re1 Qc2 Rd4 Qe4 Q7d7 Qg7 Qa7 Rf4 Qac7 Qf6 Be2+ Kc2 Rc1+ Kb2 Rc2+ Kb1 Bd1 Qf8 Rc3 Qf6 Rc1+
nrQ2bb1/n1p1r3/2q3B1/2QQ2k1/Rp2p3/1Nr1Bp2/RK1R1q2/B1N3nq b - - 0 1 illegal: No possible last move
kr4Bq/1rr1n1R1/2pb2N1/Q3p1B1/1pbN4/BR4Nr/pR3Kn1/nQ1r4 b - - 0 1 illegal: No proof kernel
4b3/2bNNNB1/2B1Kn2/n1r1R2p/1q2r1pR/2kn3B/Rp1r1p1Q/1br1Q3 b - - 0 1 illegal: No proof kernel
B4bnb/n3B1pk/1RNp1rQb/2Np1BR1/R1q2Q2/6Qb/p4r2/1r1n2K1 b - - 0 1 illegal: Other
1R2b3/q3pN2/krpnRb1B/r1nnp1RB/7r/NB4Q1/p1K5/1QQrb3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 dxc4 e5 g5 e6 gxh4 Qb3 fxe6 Qd1 e5 g4 Kd7 b4 Kc6 d4 Kb6 Kd2 a5 f4 h5 f5 h3 d5 a3 g5 c6 g6 h2 f6 h4 g7 h3 b5 a2 f7 c3+ Kc2 a4 d6 a3 d7 Ra5 Bc4 Nf6 g8B Qc7 d8Q Bg7 f8R Nbd7 Rf7 Nd5 Bb3 Rh4 Bh6 Nc5 Rf4 Bf6 Rd4 Bd7 Nf3 Be8 Rg1 h1R Bf7 h2 Rg5 Rf1 Qe1 h1N Qc1 Rd1 Bh5 Ng3 Qd7 Qa7 Qg4 Kb7 b6 Ka6 b7 Nf5 b8Q Nd6 Qg3 Rb5 Rb4 Rb7 Rg6 Rb6 Ng5 Nc4 Nd2 Nd6 Rb1 a1B Nc4 a2 Nf7 Bb2 Ra1 Ba3 Rb5 Bb4 Na3 Rg1 Qgf4 Ncb7 Qce3 Bg5 Qee4 Bd7 Qg8 Be8 Kd3 c2 Bf8 c1R Re6 Bf6 Bh6 Rc5 Rb1 Rgh1 Rg1 Bd2 Rb4 Ra5 Qgg5 Bc3 Qc1 Rbb5 Qgf4 Bd2 Rg5 Rd1 Qg3 Bc3+ Kc2 Nc5 Qd4 Be1 Qda1 Rb8 Rb7 Raa4 Qab1 Ra5 Rc7 Rbb5 Rc8 Rb6 Rb8
8/2n4B/r2qp3/bRBn3K/RQpQ1RB1/1qr3p1/p1bNr1r1/1k2rNN1 b - - 0 1 illegal: No proof kernel
2n3r1/Q1R2NR1/bn1R1B2/Bp2bq1Q/BKpb4/2pbN1qk/p3Q3/5r1r b - - 0 1 illegal: No proof kernel
4bQ2/BQ3Bq1/1Nr3p1/4ppN1/Q1npRbb1/b3B2n/2q1k2r/K1R2Rn1 b - - 0 1 illegal: No proof kernel
1b3n2/2B2QNQ/K1p1n1Q1/1NRkpq2/B3p1RN/R3r2b/qp3b1q/1r5b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 d4 Ke6 g4 b5 f4 b3 a4 h3 d5+ Kd6 f5 h2 a5 c3 g5 c2 g6 b4 g7 b2 a6 b3 f6 Nd7 a7 Nc5 f7 Rb8 a8R Bh3 Na3 b1Q Nf3 Qa2 Ra5 Qd7 Rg1 h1B Qd3 Qf5 Rg4 Nf6 g8Q Ne6 Rc5 Nd7 Nh4 c6 Nb5+ Ke5 Kd2 h5 Kc3 Bg7 Kb4 Ndf8 Qh7 b2 Bh6 c1B Qg3+ Bf4 Be2 Ra8 Bd1 Ra3 Ba4 Re3 Ka5 Bf6 Qg2 Bg3 Kb6 Bf2 Ka6 Bg5 Qg1 Bf4 d6+ Qd5 Rc3 Qa2 d7 Kd5 d8N Bb8 Bf4 Rg8 Bc7 Rg6 Nf3 h4 Rac1 Rg5 Ra3 Rh5 Rf4 Rh6 Qgg6 Rh5 Rc2 Rg5 Rcc3 Rg1 Rg4 Rb1 Rc2 B3g2 Rc1 h3 Nh4 h2 Rcc3 Bh3 Rc1 Nd4 Rc4 e5 Ne6 Rc1 Ng7 Nde6 Rcc3 Rb1 Rc2 Bf3 Rcc3 h1Q Rc4 Qh2 Rcc3 Nd7 f8Q Bh1 Qff7 Nf8 Rc5+
1qBn4/b1b2B2/p1b1r1b1/2np2Qk/1Np4q/2N1R1pQ/2R3nB/1NK1R1r1 b - - 0 1 illegal: No proof kernel
2bqN3/3k3p/q1p1b1rq/b4Q1B/n1pR1N2/nb1QBQ2/1RRN2pr/3K4 b - - 0 1 illegal: No proof kernel
N1Q1b3/K3n1p1/3R4/NbBR1B1k/p1n2nrb/3pqqN1/pr2BQ2/4Qn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 a5 b4 f5 h4 Kf7 e4 Kg6 c4 d5 b5 a3 h5+ Kh6 b6 d3 e5 d2 e6 a4 e7 a2 e8N d4 c5 f3 b7 f4 c6 Qc7 Be2 Qb6 c7 Be7 Ba3 Nc6 b8Q Na5 Qe1 d1Q Qa7 Nc4 Nd2 Bd7 c8B Rb8 Nc7 Be8 Na8 Qdb3 Rh3 Bh4+ Rg3 Qc6 Rd1 Ne7 Bc5 Qf6 Bf5 Qe3+ Kf1 f2 Nb3 Rb5 Na5 Rb2 Kg2 Kg5 h6 f1N h7 Kh5 Rf3 g3 Rd2 Rf8 h8Q+ Qh6 Qg8 Qf6 Qe6 Rh8 Qc8 Rh6 Qb6 Rg6 Rf2+ Rg4 Rd3 Qee6 Kf3 g2 Qa7 Qb6 Ke4 Qb3 Rff3 Qg5 Rfe3 Qd1 Rd2 f3+ Kd3 f2 Re6 Qh6 Rd6 Qg5 Bf3 Qf4 Ne2 g1N Rd5 Nh3 Ng3+ Kh6 Be2 Qg5 Nh1 Nf4+ Ke4 Kh5 Rd3 Ncd2+ Ke5 Qb3 Kd6 Nc4+ Kc7 Qh6 Rd1 Qf3 Qb6 Qe6 Kb8 Qee3 Ka7 Nh2 Rd2 f1B Bd1 Bd3 Be2 Nf1 Qf6 Nd6 Qf8 Bdb5 Rd3 Nc4 Ng3+ Kg5 Rc3 d3 Rb3 Bbc6 Rb6 Bcd7 Rbd6 Bb5 Nh1 Kh5 Qf6 Qee4 Qd4 Qe5 Qdf2 Qee3 Ng3+
1Rq1R3/2b1p3/4pn2/6pQ/1nQb4/qNnb1KRN/bB1Np3/rrQk1B2 b - - 0 1 illegal: No possible last move
kRn2B2/1b1p1N1r/1B1Qpq2/6bN/3p1RR1/b2n2Kp/2Qq4/1n1BQb1r b - - 0 1 illegal: No possible last move
3B3b/3B1nr1/1R2n3/1Q3q1B/1N1pbq1p/2rqR1pp/3N2pb/K2kQ1QN b - - 0 1 illegal: No possible last move
2bRbb2/pBn1Nn2/Q5Bp/q5p1/3R1k2/1q5R/qNp1pr2/1N1r1QBK b - - 0 1 illegal: No proof kernel
K1Q3Q1/1B2rb2/1p4R1/1p1prk2/R1rrpb2/3B1p2/rQ1n1Bqn/2N2R1N b - - 0 1 illegal: No proof kernel
2r1n3/1B1N1qpB/Rb2qQ2/1rBnp1Kp/1RQp1n2/k5pb/n5R1/4NQ2 b - - 0 1 illegal: No possible last move
4n1Q1/rNrb1r2/1p2p2b/2q1BpQp/N1B3Rn/8/1R1Qkpp1/K3N1rR b - - 0 1 illegal: No possible last move
1KnN2r1/2Rr1BR1/bn1n3n/2B3p1/5Rb1/N1Nk1p2/2bQ3p/R1R3r1 b - - 0 1 legal: proof: b4 e5 f4 exf4 g4 a5 d4 axb4 a3 bxa3 Nf3 c5 Ng1 cxd4 h3 f5 h4 f3 h5 f4 h6 g6 Rh4 Bg7 hxg7 Qf6 Rh1 Qf5 gxf5 Kd8 Rh4 Ke7 Rh1 Ke8 Kf2 Kf7 c4 Kf6 e4 Ke5 f6 d5 f7 b5 f8N h5 c5 a2 c6 b4 c7 h4 Ne6 h3 Qb3 d3 Qc3+ d4 Qa3 d2 Nc5 d1B Be2 b3 Ne6 g5 Nd8 h2 Qa7 b2 Nc3 b1B Be3 d3 Nb5 d2 Qa5 Nh6 g8R Ba6 c8R Rh7 Rc7 Nc6 Bc4 Bbc2 Bc5 Ne7 Bf7 Nc8 Na3 Bde2 Rc1 a1R Rg7 Bed1 Ne2 Rb1 Kf1 f2 Kg2 f1N Kf3 Ne3 Qb4 Nc4 Rg1 Kf6 e5+ Kf5 e6 N4b6 e7 Ke5 e8R+ Kf5 Kf2 Rb8 Nc3 Bg4 Ree1 f3 Ke3 d1N+ Kd4 Nb2 Re4 N2c4 Qa5 N4d6 Qb4 Nbc4 Kd5 N4b6+ Kc6 Ra8 Rf4+ Ke5 Rg6 Rg7 Qa5 Rg8 Rg7 Ra7 Rb7 Ra1 Kc7 Rb1 Kb8 Ra1 Rc7 Rb1 Rc6 Rd7 Rc7 Ra1 Nd5 Rb1 Qd2 Ra1 Rf6 Ke4 Nc3+ Ke5 Rcd1 Rb1 Ncb5 Ke4 Rf5 Rb3 Ra1 Re3 Rgc1 Re1 Qf2 Rf1 Rf4+ Kd3 Nc3 Rg1 Qd2+
4q2k/N1B5/1b2b2K/1r1b1q1R/b2N1QB1/1nR1n2r/r1rn1N2/1BBb3B b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 h5 e4 d5 c4 f5 g4 Kf7 b6 Kg7 e5 f3 e6 f2 c5 h3 e7 h4 e8B b3 g5 h2 c6 d3 Ke3 b2 Kf4 d2 g6 d4 b7 d3 c7 h3 Bf7 Bc5 Nf3 Nf6 Kg5 f4 Ra3 Bb6 Ba2 Qe8 Nh4 f3 Qe1 d1B Qe2 d2 Rb3 Nbd7 b8B Nd5 Rb5 Ba4 Nc3 d1B Bg2 b1R Rc5 f1N Qd2 f2 Nf3 Nde3 Rc6 Nc5 Ne4 Rb5 Bb1 Be6 c8N Nb3+ Rc5 Rg8 Nd4 Kh8 Bc7 Raa5 Qb4 Nfd2 Na7 f1Q Kh6 Qf5 Nf2 Rg7 Rc3 Re7 Re1 h1B Rg1 h2 g7+ Kg8 Bh3 Bhd5 Rg5 h1R Rh5 Rh2 Bg4 Rh3 Qd6 Rd7 Qg3 Rd6 Qf4 Rc6 Rd3 Rc2 Rc3 Kf7 g8B+ Kf8 Bf7 Ra6 Bg6 Kg8 Bf7+ Kh8 Bg6 Ra2 Be4 Raa5 Bh7 Rc5 Bh1 Rab5 Rd3 Rcc2 Rc3 Bb7 Bg6 Bbd5 Rc5 Rc3 Qg3 Qe5 Bb1 Rcc2 Qf4 Qf5 Rc3
r2rq2n/1b1r2bN/1b1N4/3r1N1b/3N1b1r/NK2Q1rR/1RRBq3/3k3B b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 g3 Na6 Rh3 Nc5 Rh1 Ne4 Nd2 g4 Nb1 Ng5 hxg5 fxg3 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 d5 a4 b5 a5 f5 c5 h5 a6 f4 c6 h4 c7 b3+ Kb2 d3 a7 Kd4 g6 b4 e5 h3 g7 d2 e6 Ke3 e7 f3 e8R+ Ne7 g8N f2 Rh2 g2 Nh6 d4 Ra3 d3 Ra6 g3 Qg4 Bb7 c8N Bg7+ Rf6 Qd7 Ne2 g1B Rh1 h2 Rf8 g2 Rf7 Qe8 Nf4 Ng6 Be2 f1Q Bf3 Qe2 Ka1 b2+ Ka2 b3+ Ka3 Rh7 Nd6 Nh8 Nc3 b1B Rg6 b2 Kb3 Bf2 Qh5 g1B Qh3 Bg3 Nh5 Bf4 Nf6 Kf2 Nhf5 Ke1 Rg2 d1R Be3 d2 Rc7 B1e4 Ncb5 b1R+ Kc3 Ra1 Nbd4 Ra3+ Kb4 Bed5 Rc2 Bf7 Bc6 Rh4 Nh7 Bh5 Qf3 Ra5 Kb3 Rd5 Rf2 Rg4 Qe4 Rg3 Qd3 Rd8 a8N Ra1 Nb6 d1R Nbc4 Raa8 Na3 Rd7 Bc1 Rd2 Qe3 Kd1 Nf3 R2d4 Bd2 Rdd8 Nc8 R5d7 Ncd6 Rd5 N3d4 Qe1 Re2 Bf2 Rg1 h1R Rg2 Rhh3 Rh2 Rh4 Rh3 Bg1 Rg2 Qe2 Rf2 Rda5 Be4 Rd5 Bh1 Ng6 Rf1+ Qe1 N4b5 Nh8 Qc3 Ke2 Rb2 Qf2 Rc1 Qh2 Rcc2 Bb6 Qd3+ Kd1 Qe3 Qe2 Nbd4
1N1bB2K/kB2q3/Bp3R1N/2Bnnrb1/3q3B/n1bQ3n/1q1n2N1/5r1R b - - 0 1 legal: proof: b4 a5 g4 c5 f4 h5 d4 hxg4 a4 cxd4 f5 axb4 a5 b6 f6 Bb7 a6 exf6 axb7 f5 Qd2 f4 Qd3 Qc7 Qd1 Qd8 Kd2 g5 Kd3 d5 e4 Kd7 c4 Kc6 h4 f5 e5 f3 e6 g3 h5 f2 h6 b3 e7 f4 e8B+ Nd7 b8B Kb7 c5 b2 h7 g2 Qd2 g4 Ra2 g3 Qa5 f3 Qa4 Ne5+ Kc2 d3+ Kc3 d2 Kd4 d1Q+ Bd2 Ne7 Nc3 b1N Bfb5 f1N Bd3 f2 Bg5 Ra5 Rh2 Na3 Qb5 Nd2 Bh4 f1Q Nce2 Qf6 Bd6 Ka7 Nh3 g1B+ Rf2 g2 c6 Bg7 c7 Bh2 c8B g1B Bc5 Rf8 h8N Qc2 Ra1 Qb2+ Nc3 Bf4 Nf7 Bgh2 Bb7 Bg5 Nh6 Qdd6 Rh1 Qfe6 Rg2 Rf1 Rf2 Bg3 Rf5 B7f6 Nf4 Be1 Qb3 Qed7 Bda6 Qa4+ Ke3 d4+ Ke2 N5c6 Kd3 Nf3 Ke4 d3+ Bd4 d2 Nce2 d1N Qd3 Bc3 Ng2 Qc4 Rf4 Qcc5 Bg1 Qd7 Nd4 Nf2+ Ke3 Nh3 Ke4 Be5 Rf7 Bc7 Be3 Bd8 Rf8 Nce5 Rf6 Ra4 Bef2 Qdd6 Be3 Nd5 Kf5 Qe7 Bg1 Nf7 Kg6 Nd2 Kh7 Ne5+ Kh8 Qc4 Ndf5 Qg4 Bc5 Raf4 Nd4 R4f2 Bc8 Rf5 Nc6+ Ka8 Nb8 Ka7 Bcb7 Qe4 Qc2 Qd4 Qd3
B3Q1KN/q3B3/r1q1n3/nBn5/2rR1B1N/qr3bBp/br1q4/5RNk b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 e5 axb4 e6 fxe6 Bb2 e5 Bc1 e4 a3 gxh4 Bf4 b5 Bg5 b3 Bc1 b2 Be2 b4 Qd3 b3 Qd1 Bh6 Bf1 Bf4 Rh3 Bd6 Rh1 Bb4+ axb4 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 Kf7 f4 Ke6 c4 Kf5 c5 h5 b5 e5 g3 d5 b6 h3 c6 h4 b7 h2 c7 e3+ Kd3 e2 Nh3 Kg4 f5 Kf3 f6 e4+ Kd2 d3 Kc3 e3 Kd4 d2 Ke5 d4 f7 d3 f8B Nh6 g4 Qd7 Kf6 Nf7 Kg7 Nd8+ Be7 Ne6+ Kf7 Nc6 b8B Ra6 g5 Na5 Nf2 h3 g6 Rh4 g7 Rc4 Qe1 d1Q g8B d2 Rg1 h1Q Nc3 b1R Ra2 b2 Nfe4 Q1a4 Ng3 d1B Nf5 Qa3 Rg4 Bb3 Rd4 Bb7 Ra1 Ba2 c8N Ba8 Ncd6 Qa7 Bh7 Be4 Kg8 Bc6 Qd2 e1Q Nf7 e2 Bg3 Bb7 Qc2 Qd2 Nh8 e1N Qa4 Nd3 Qe8 Ndc5 Be2+ Kg2 Nh4+ Kg1 Be4 Ba8 Bb7 Qc6 Bd3 Kh1 Ne2 Qdb4 Be3 Qd2 Ng1 Rf1 N8g6 b1R Nh8 Rf3 Bef4 Rb2 Be2 Rfb3 Rf1 Rcc3 Bb5 Rc4 Bc8 Qcc7 Bcd7 Bf3 Bdc6 Qcb6 Bb7 Qc6 Ba8
2K2b2/3N1NBR/nB2R3/3Nn1n1/3knp2/q1b1R2Q/1Rq2r1r/2r1Rqq1 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 f5 Qd2 h5 Qd3 f4 Nb1 b6 Bh3 Bb7 Qd2 Be4 Qd1 Bf5 gxf5 Ra5 Bg4 hxg4 Na3 Ra6 Nb1 Ra8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 e4 g5 a4 b3 h4 d3 c4 d2 h5 b2 c5 g3 c6 g2 h6 g4 c7 g3 c8N f2 a5 d4 h7 d3 a6 f1Q f6 Kd4 a7 Nh6 e5 Qd6 e6 Na6 f7 Ng4 e7 Ne5 e8R Qa3 Qg4 d1Q Ra2 Qc2 Nc3 b1N Nh3 g1B Nd5 g2 Re6 Nd2 Rb2 Ndf3 Ng5 Be3 Bd2 g1Q Ba5 Bd2 Qh3 Rb8 a8R Bc3 Ra7 Ra8 Rae7 Ra7 Ne4 Ng5 Nc5 Rc7 Nd6 d2+ Nc4 d1N Nd7 Nf2 Re8 Be7 f8B Nfe4 Bg7 Bf8 R8e7 Rg8 h8R Rc8 Rh7 Rh8 Qf5 Rb8 R1h3 Re8 Re3 Rd8 Rh1 Rh2 Re8 Rf2 Rh7 Rc8 Qh3 Rc6 R6e7 Rh6 Re6 Rh5 Qg2 Rh2 Qh3 Qfa1 Nd6 Qac1 Nf7 Qcf1+ Re2 Ng3 Rf6 Nef3 Kc6 b5 Kb7 b4 Rb1 b3 Ree1 b2 R8e3 Ne5 Kc8 N3e4 Rd6 Re2 Re6 Ref2 Ra1 b1R Ra2 Ra1 Rb2 Rc1 Bb6+
knBR2b1/2r4p/3rr1r1/2BR1NRN/4nR1q/8/1K1NRn2/rnQ1q2q b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 f5 a4 b5 e4 d5 c4 Kd7 Kc2 Kc7 a5 Kb7 c5 d3+ Kb2 d4 g6 f4 g7 b3 e5 f3 e6 d2 e7 g2 e8R d3 Re5 g3 Rg5 f2 Rhh5 b4 Ra3 Ra6 c6+ Ka8 c7 Be6 c8R Nf6 g8N Ne4 Rg6 Qh4 Nf3 g1Q Re8 g2 Rf8 Qgh1 Qe1 g1R Rf4 d1R Rd5 d2 Nf6 Rc8 Rgg5 Bg8 Ra2 Re6 a6 Rc7 Bh3 f1Q a7 Qff2 Qe3 Qe1 Nd4 Rg3 Nf5 Rg1 Ka1 Rg2 Rc2 b2+ Ka2 Rg1 Nh5 b3+ Ka3 Kb7 a8R Rg4 Nc3 b1R Qg1 Ra1+ Kb2 Rg3 Nb1 Rg2 Ra6 Rg4 Rad6 Ka8 Qc5 Ra6 Rd8 Rad6 Ka1 Rg1 Ba3 b2+ Ka2 Rg4 Qe3 Rc1 Bc5 d1N Re2 Ndf2 Nd2 Ra1+ Kb3 b1N Kb2 Rg3 Qc3 Raa6 Qc2 Rga3 Qc1 Ra1 Nfg3 Rg6 Bc8 Rac6 Nf5 Rde6 Nc4 Rcd6 Nd2
1B1b3b/2bb3R/3n1Bnr/2KR1qN1/3Qqq1N/BBNb4/3qBp2/k1b5 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 Kd2 d5 f4 b5 e4 d3 Bb2 Qb6 Kc1 Qf2 Ba3 d4 Kb2 Ra7 f5 Rd7 f6 Rd5 exd5 Nxf6 Kb3 Qe1 Bc1 Qf2 Kb2 Ng8 Kb3 Kd7 h4 Kd6 c4 Kc5 a4 f5 a5 g5 a6 e5 h5 g3 d6 d2 d7 e4 d8B g2 h6 d3 h7 Kd4 a7 g4 a8N g3 c5 e3 c6 e2 c7 e1B Be7 f4 Nh3 g1B Bd6 f3 Ra2 g2 Rc2 Nc6 Be2 Bd7 c8B Na7 Nc7 Bh2 Ba6 g1B Ng5 Bg7 Bc8 Ne7 Rc5 Ng6 Qc2 d1B Nc3 d2 Bf1 Be2 Ne8 d1Q Bc7 Bd2 Bf4 Bd3 Ba6 Nc8 Bb2 Bc1 Bg2 Nd6 Nf6 Qdd2 Ka2 b3+ Ka3 Qfe3 Bg3 Qf4 Kb4 f2 Ba1 b2 Bd5 b1Q+ Qb2 Qbc2 Ng4 Bf6 Bh4 Bd8 Nh6 Bg3 Bb3 B1h2 Ne4 Qb1 Be7 Bh4 Re5 Bf6 Ng5 Bg3 Ng4 Bh2 Ne3 Qbc2 Ng2 Bg7 Nh4 Bf6 Ka3 b4+ Ka2 Bg3 Rd5+ Ke3 Rh3 Nb5 Ne2 Bc4 Nhf3 Qd6 Rh6 Qf5 Nh4 Bd4 Bf8 Kd3 Be7 Qde5 Bd6 Qee3 Bb8 Bgc7 Rh5 Nd6 Rh6 Rg8 h8B Qef4 Bg7 Bcb5 Ba4 b3+ Ka3 Kc4 Be5 Rg7 Rh8 Rh7 Bg7 Rh6 Rh7 Nc8 Bf8 Bh8 Bg7 Nd6 Bf6 Qdc2 Nd4 Kd3 Kb4 Qcd2+ Kc5 Bc4 Qa2 b2 Bb3 b1Q Bb2 Qbc2 Ba3 Kc3 Qb1 Qce4 Bb5 Qh1 Qe4 Be2 Qe5 Qhe4 Ba6 Bd1 Be2 Bc2 Ba2 Bd3 Nb5+ Kc2 Bb3+ Kb1 Nc3+ Ka1 Qd4
1nb1K3/Br4Bn/B2bk2p/r2Rn3/2p1Rn2/2nR3N/BQ1q4/1Nb2r1B b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 Kf2 Kd7 Kf3 c5 Ke4 f5+ Ke5 h3 d4 h2 e4 b3 g4 c3 d5 h6 b6 b2 d6 c2 b7 f3 g5 f4 g6 f2 g7 f3 Ba6 f1R Qd2 f2 Ra5 Ne7 Kf6 Rh7 Kf7 Ng8 e5 Ra7 Nh3 Nf6 Ra3 Qa5 Rd3 Qb4 Rg1 h1N Rg4 Ng3 Re4 Ne2 Qc3 Nf4 e6+ Kc6 e7 Kd7 Be3 c1B Bd4 Qa5 Qb3 Qd2 Qb6 Rh1 Qb4 f1N Qa3 Nh2 e8B+ Kd8 d7 Bd6 Bc3 Nf3 Rd5 Kc7 d8R Rf1 Bc6 Ra8 Rd3 Ra7 Bd5 Ra8 Ba2 c4 Bd4 Kc6 Qb4 Kd5 Qb6 Rh8 g8B Nh7 Qb3 Ne5+ Ke8+ Nf7 Be5+ Ke6 Qc3 Kf5 Bg7 Ne5 Bf8 Kf6 Bd5 Rg8 Bc6 Rg7 Qc2 Rf7 Bg7+ Ke6 Qb3 Ba3 R8d5 Bd6 Na3 b1N Qb2 Nc3 Nb1 Nd7 b8B Ra7 Bab7 Ra5 Ba7 Nb8 Ba6 Rc7 Ba4 Rb7 Bd1 Nf8 Bf3 Nh7 Bh1
n5kR/nK2bpBp/QnBNN3/r2q1R1N/2r1n3/b7/q3r3/NB2N2b b - - 0 1 illegal: No possible last move
KnbB4/3r2rB/3B1qq1/3k4/BRRn3N/nbp1pQn1/1b6/1b2RBN1 b - - 0 1 legal: proof: h4 d5 d4 g5 c4 dxc4 a4 gxh4 e4 e5 Qb3 b5 axb5 exd4 e5 f6 Qd3 f5 Qe4 fxe4 Kd2 Kd7 b4 Ke6 f4 a5 g4 c5 f5+ Kd5 e6 h5 e7 h3 e8B a4 g5 d3 Kc3 e3 b6 h2 f6 h4 g6 a3 f7 d2 g7 d1B b7 a2 b5 h3 b6 Rh7 Bd2 Ra7 Na3 Nh6 g8B Rg7 Be1 Bb3 Nb5 Nf5 Bh7 Nd4 Rc1 a1N Nd6 Nac2 Ba4 Na3 Nf5 Qf6 Nh4 Bd6 f8Q Be5 Bg3 Qg6 Rc2 Bf6 Bc7 Be5 Bd8 Qf6 Kb2 c3+ Kc1 c4 Kd1 Na6 b8B Rad7 Bd6 Nb8 b7 Qg6 Ke1 Bf6 Rc1 c2 Qf7+ Ne6 Ke2 Bb2 Kf3 c3 Re1 c1Q Qf6 Nd4+ Kf4 Nbc6 b8R Qd2 Rb4 Nb8 Ne2 Qd1 Rg1 h1N Rg4 h2 Ng1 Ng3 Qf8 Nde2+ Kf3 Qd2 Rgc4 Qd4 Qf4 Nf5 Qg4 Qdf6 Qh3 h1B+ Qg2 Ke6 Ke4 Ned4 Qf3 Kf7 Kd5 Ng3 Kc5 Ke6 Kb6 Bg2 Qb7 Be4 Ka7 Bec2 Ka8 Bb1 Bc5 Ke5 Qf3 Ke6 Bce7 Ke5 Bd6+ Ke6 Qf2 Kd5 Qf3+
2NRq3/4Np2/nbR1b3/k2NbBp1/BB2BbK1/1Qq2nB1/2b4r/q4n2 b - - 0 1 legal: proof: d4 a5 g4 e5 f4 b5 b4 axb4 e4 h5 d5 hxg4 d6 cxd6 Bh3 d5 Bg2 Ra6 Bf1 Re6 Nc3 dxe4 Nb1 e3 Ke2 e4 Ke1 Re5 fxe5 Rh5 Bb2 Rh7 Bc1 Rh8 Ke2 g5 a4 d5 c4 Kd7 h4 Kc6 h5 Kb6 e6 b3 h6 d4 e7 b2 e8N b4 c5+ Ka5 c6 b3 h7 g3 c7 d3+ Ke1 e2 Nc3 b1B Ba3 g2 Kf2 e1N Kg3 e3 Nh3 g1B Nd5 e2 Ne7 d2 Nf4 b2 Rh6 Bb6 Qb3 d1Q Nfd5 Nf3 Nd6 Be6 c8B Qd2 Bh3 Bc2 Rd1 b1Q Bf5 e1B+ Kg4 Qbc1 Bd7 Bg7 Ndc8 Be5 Bc6 Qa1 Bb4+ Ka6 a5 Qdc3 Rg6 B1g3 Ba4 Qe8 Rd4 Bgf4 Rh6 Bd7 Rc6 Be6 Nc7+ Kb7 Rd8 Na6 Ncd5 Nf6+ Kh3 Nh5 Kg4 Rg8 h8B Ng3 Bg7 Nf1 Bf6 Bed4 Be5 Rh8 Bb8 Rh2 Be5 Nc5 Bc7 Bde5 a6+ Ka8 a7 Kb7 a8B+ Ka6 Ba3 Ka5 Bd6 Na6 Bac5 Bh8 Bf2 Qe3 Bg3 Bhe5 Ba3 Qec3 Bc5 Nb8 Bb4+ Ka6 Rc7 Qd7 Nf6 Qb5 Be4 Qe8 Bc5 Ka5 Rc6 Na6 Nfd5 Rh3 Ba3 Rh2 Bb4+
1KR1NN2/4p1q1/1BB1B3/2Bnk2q/2RQb3/nrb1ppp1/3nN3/r4Br1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 g5 e4 dxe3 f4 gxf4 g5 h5 Qg4 b5 axb5 hxg4 Ke2 d5 Kd3 Kd7 Kd4 Ke6 Kc5 f5 b4 a5 h4 f3 c4 d4 h5 f4 h6 a4 g6 a3 g7 d3 h7 f2 b6 a2 b7 g3 b5 d2 b6 d1R Na3 f3 Rh4 Ra5+ Nb5 Na6+ Kc6 Nh6 b8Q Re1 g8B+ Nf7 b7 Re2 c5 Rd2 Nd6 Rd1 Ne2 Rd4 Ba3 Rb4 Ne8 Bg7 Qd6+ Kf5 b8N Rb3 Rc4 Nc7 Nd7 Bc3 Nf8 Nd5 Rc1 a1Q Qg6+ Ke5 Qd3 Nd6 Be6 Nb5 Bb4 Bd7+ Kb7 Ra8 c6 Qda5 c7 Na3 c8B Ra6 Rc2 Bc6+ Kb8 Qb2 Bb7 Qc5 Bfh3 f1N Bg2 Nd2 Bf1 Nb6 Ba5 Be4 Bc6 Nd5+ Bb6 Nab1 Ba8 Ra1 Rc1 Qb5 Rc8 Na3 Bc6 Rg8 h8B+ Rg7 Nf6 Rh7 Bg7 Rh1 Ne8+ Nf6 Rc2 Rg1 Bh8 Bb4 Rc4 Bc3 Bf5 Qd5 Bg4 Qf7 Be6 Qh5 Beh3 Bd4 Bhg2 Kf5 Bg7 Nd5 Bh3+ Kg5 Be6 Qc3 Bg8 Kf5 Be5 Qb2 Bd6 Bg7 Bc5 Qf6 Rc3 Qfh6 Rc4 Bc3 Bf7 Ke5 Be6 Qg7 Qd4+
BRN3BB/n4p2/2pB1K2/Np3p2/q2n1b2/2NrbB2/2QR1q1n/n1r2k2 b - - 0 1 legal: proof: b4 a5 f4 d5 a4 g5 h4 gxh4 c4 dxc4 f5 axb4 a5 b6 f6 exf6 a6 Bb7 axb7 f5 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 g4 Kd4 e4 h5 d3 b3 e5 h3 e6 b5 e7 c3 Kg5 c2 Rh2 h4 Ba3 Ke3 d4 c1B d5 b2 d6 Nc6 b8B Nd4 d7 c6 Bb4 Qa5 e8B Qa4 d8N Ne7 Nb7 Bh6+ Kf6 Nc8 g5 Na7 g6 Bf4 Na3 b1N g7 Nd2 g8B N2b3 Rd2 h2 Be5 h1Q Ne2 Kf2 Nd6 h3 Bd7 h2 Bg2 Qe1 Nac4 h1N Bf3 Ng3 Nc8 Rh1 Bbd6 Nf1 Na5 Nh2 Qc2 Kf1 Nc3 Qe3 Ne7 Rd8 Bc8 Rg1 Bb7 Qf2 Nc8 Rd7 Ra2 Na1 Ba8 Rd8 Ke7 Be3 Bh8 Rd7+ Kf6 Bf4 Rd3 Bce3 Rd2 Qc4 Be2+ Kg2 Nb3 Rc1 Ra6 Ndf3 Rb6 Qe4 Ba3 Rd3 Bd6 Qa4 Na5 Nd4 Bf3+ Kf1 Rb8
1BNnkr2/BB1r3r/5B2/p2NRQ1r/1Br1bb1p/3n3p/K3R1p1/bN6 b - - 0 1 legal: proof: h4 d5 g4 b5 e4 c5 a4 bxa4 h5 c4 d3 d4 g5 cxd3 g6 Qd5 exd5 fxg6 Qe2 gxh5 Qf3 h4 Qd1 h3 Kd2 a5 f4 e5 b4 h5 c4 g5 c5 a3 f5 h4 d6 e4 f6 a2 c6 g4 b5 g3 c7 g2 b6 Rh5 b7 Bf5 c8N Nc6 b8B Nge7 Qe1 Nb4 Ne2 Bh6+ Nf4 Nec6 Qf2 e3+ Kd1 d2 Ba6 Ra7 Nd5 Be4 Re1 Nd3 Kc2 d1R Kb3 e2 Qf5 Bf4 Bb7 Nd8 Be3 Rc1 Bg1 Rc4 f7+ Kf8 d7 Ra8 Rc1 e1R Rc2 Ra7 Re2 Rf1 Nd2 Rf2 Rae1 a1B Ka2 Nb2 Qh7 d3 Nb1 d2 Qf5 Rf1 Bd4 d1R Be3 Nd3 Bb6 Nc6 d8B Rf3 Bf6 Nd8 Bc6 Rd7 Bb7 Rdc1 B6a7 R1c3 Bfe5 Rb3 Bed4 Rb6 Bb2 Rbh6 Bc3 Rh7 Bb4+ Kg7 f8B+ Kg8 Bg7 Rf1 Qg5 Kf7 Bf6 Ke8 Qf5 Rf3 Rd2 Rg3 Re3 Rg8 Rde2 Rf8 Bbe7 Bf3 Re5 Be4 Bb4+
Br1b4/B2p1b2/1N1rB2R/2ppQ3/1Np1B1q1/b1k2r1B/2p2R1R/2nnK3 b - - 0 1 illegal: No proof kernel
4Rq2/4B2R/2R1nb2/b2K3b/rbrn2n1/kN1Nq1Rn/B3R3/nqNrQ3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 h7 d3 Ke3 f4+ Kd2 b3 Kc3 f2 e5 b2 a6 f3 e6 g3 a7 g4 e7 b4+ Kb3 d4 e8R g2 Rh3 g3 Rh5+ Qg5 Be3 d2 Qe1 d1N Re7 Nd7 Rh4 Ngf6 Ra2 Ng4 Na3 b1Q+ Ka4 b3 Re8 b2 Bd2 d3 Kb3 Qe3 Ba5 d2+ Bd3 f1N Bc7 f2 Bb8 Nfh2 Rd8 f1Q Re8 Nf3 Nc2 Ndf2 Re6 d1R Na1 Nh3 Ne2 g1B Ra3 g2 Nc1 Nd4+ Kc3 Rg8 h8N Be7 Rh7 Nf8 Bf4 Bf6 Bg5 Qff3 Re8 Nfe6 Ng6 Bb7 Ree7 Rgc8 Ne5 Qf1 Re8 Bf3 Ra2 Bf2 Rg8 g1B Nab3+ Kd6 c5+ Kd5 Qd2 Be1 c6 Kd6 Kc4 Qff2 Qe2 Ba5 c7 Qf1 Qc2 Bf2 Qc3 Be1 Qd2 Qff2 Qe2 Beb4 Qe1 Be2 Bh4 Qff4 Rgg7 Qh6 Rg8 Qf8 Rg5 Bf3 Bg6 Be2+ Ned3 Kc6 Bf7 Kb6 Kd5 Kb5 Re5 Bf3+ Re4 Be2 Ra3 Bf3 Na1 Be2 Rc3 Ka4 Nab3 Ka3 Bg5 Nh2 Re5 Bh5 Bg8 Ng4 Rc6 Rcb8 c8R Rb7 Bf7 Rc7 Rc3 Rc4 Rc6 Qa1 Bg8 b1N Bh4 Nd2 Bf7 Bh8 Be7 Bf6 Re4 Qb1 Re5 Rb8 a8R Rb7 Re8 Ra7 Rf5 Ra6 Rc2 Ra8 Rf3 Ra6 Rg3 Ra8 Nbc5 N2b3 Re2 Na1 N5b3 Bb6 Qc3 Ra4 Qe1 Ba5 Nd2 Rc5+ Kd6 Ng7 Ba2 Rc4+ Kd5 Nge6 Ndb3
4q1Br/2b1b1r1/1Bb3n1/4rR1r/4N3/QKNNnB1N/1n3qrb/4RNqk b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 h4 Ke4 a4 g5 e3 f5 h5 d5 a5 b5 a6 d3+ Kb2 g3 h6 f3 h7 d2 a7 f4 c5 g4 c6 g2 c7 f2 Rh3 b3 Nf3 g1B Nh2 g3 Be2 f1R Ra3 f3 Ra5 g2 Ra2 d4 Ra6 d3 Rc6 f2 Rd6 b4 Rd5 Be7 Rf5 Qe8 Rb5 Nd7 Rbh5 Nf8 Ng4 Nh6 Qc2 d1R Rc5 Ng6 Nh2 Bb7 c8B Rd2 Be6 Nf5 Bg8 Re1 Nf1 Bc6 Rh1 Bh2 Bh5 Rb8 a8N g1B Nc7 Rb7 Nd5 Bc7 Nf4 Bh2 Nh3 Ra7 Bd1 Ree2 Nc3+ Kf3 e4 Kg2 e5 Ne3 e6 Rb7 Ng3 f1Q Rf5 Qf2 Re1 Ra7 Nf1 Kh1 Kb1 b2 Qa4 Rc2 Ka2 d2 Kb3 b1Q+ Bb2 Qa1 Qa3 Qc1 Ne4 Rc5 Bd4 Re5 Bb6 Raa5 Nc3 Rab5 Bc2 d1N Bb1 Nb2 Be4+ Qf3 Bd5 Rg2 Be4 Qf2 Bf3 Qg1 Nb1 Qd2 Nc3 Bed8 e7 Qdf2 Rf8 Rh5 Rf6 Rbe5 Rf5 Qf8 e8N Be7 Nd6 Qb8 Ka2 Qe8 Nde4 b3+ Kb1 Na4 Ka1 b2+ Ka2 Bb4 Kb3 b1R+ Qb2 Ra1 Qa3 Nb2 Bc4 Rg8 h8N Rg7 Bg8 Be7 Nf7 Rd1 Nhg5 Rd8 Nh3 Rc5 Ne5 Rc8 Nd7 Re5 Ndc5 Qd7 Be6 Rch8 Bg8 Qe8 Nd3
q6B/1RN4N/3BBRKb/bB5R/2Qbr1b1/1n2B1qb/1n2r2b/1kqn3q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 a5 e1Q h5 d3+ Kb2 g3 a6 g2 a7 g4 h6 b3 h7 b4 Ra4 d2 Na3 g3 Kb1 b2 Kc2 e3 Kd3 b1Q+ Qc2 d1B Rh4 d4 Ra6 b3 Re6 b2 Reh6 e2 Rh2 Ne7 Re6 Bh6 Ra6 Nbc6 Rh4 Ng6 Rh1 Na5 Bd2 Re8 h8B Nb3 Nb5 Re4 Bc3 Qc1 Bb4 b1Q Nh3 g1B Be5 g2 Bbd6 Bh2 Bh8 g1B Ng5 Bd7 c8B Qg3+ Nf3 e1B Nc7 Be3 Ng5 Ba5 Nh7 Bg4 Bc5 Rb8 a8R Rb6 R8a7 Rbe6 Rb7 Bh3 Kc4 d3+ Kd5 d2 Bb5 d1N Qc4 Ne5 Bd4 Bf2 Be3 Nd3 Rd6 Re8 Rdb6 N3b2 Rf6+ Kg4 f5 Kf3 Ra7 Bfg1 Rb7 R8e5+ Kd6 Be6+ Bcd7 Qa8 Ke7 Bf2 Bc8 Bd7+ Kf7 Re8 Bg5 Bd4 Kg6 Bg4 Bf4 Kf2 Bd6 Ke3 Bc5 Kd2 Bd6 Bhg1 Rh5 Bh2 Bc5 Re2 Bb6 R8e4 Bc5 Bc6 Be6 Bd7 Bd6 Nc3 Bf4+ Kc2 Be3 Bc8 Rf8 Qh1 f6 Qbc1 f7 Bd7 Rd8 Kb1 f8B Ncd1 Bd6 Bc8 Rf8 Bd7 Rf6 Bc8 Kf7 Bh3 Bd5 Bcf5 Be6 Bfg4 Kg6
2r2bn1/b3rr2/R1N3b1/R1n2n2/N4KRR/BQr3r1/Bq2k1r1/rR3N1r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 c6 Ke3 e5 b3 e6 b4 c7 d4 e7 b2 e8N b3 h6 d3 h7 Na6 Nf3 Qf6 Ng7 Nc5 Na3 b1R Rg1 b2 Nh2 f3+ Kh1 f4 Bh3 f2 Kg2 f1R Ne8 f3+ Kh1 f2 Kg2 Bf5 c8R Bg6 Nf3 Re1 Nb5 f1R Qb3 Ke2 Rc6 d1R Ra4 d2 Rd6 Ra1 Nec7 b1R Rd5 Rb2 Na6 Rc8 a8R Qc3 Nh2 Rf7 Nf1 Rcc7 Kh1 g2+ Kh2 Rc8 Rh1 g1R Nb8 Rg3 R8a6 Rc2 Rg5 Qb2 Nc6 Rcc3 R4a5 Ra2 Nc7 Ra1 Na8 Ra2 Nb6 Ra1 Ne3 Reg1 Nf1 Re1 Bg2 d1N Bd5 Ne3 Na4 Nf5 Be6 Rge3 Bd5 g3+ Kh3 g2+ Kg4 Rh3 Kf4 Rhg3 Rh4 Rh1 Rgg4 g1B Be6 Nf6 Bd5 Rg8 h8R Rgg7 Be6 Ng8 R8h6 Ne4 Rh7 Ba7 R7h5 Nc5 Rhg5 Qc2 Ba3 Qb2 Rgh5 Rhg1 Rh1 R1g2 R5h4 Red1 Qb4 Re7 Ba2 Rgf7 Qb3 Nd7 Nh2 Nc5 Rg1 Rdd8 Rc1 Rd1 Rb1 Rh1 Nf1
2Rq2nq/5q2/q5Nr/brk1N1N1/BrbbR1Qr/n3B1b1/2B2NK1/n1N5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 c4 f5 e4 g5 a4 b5 e5+ Kc5 e6 d5 a5 d3 e7 b3 e8N g3+ Kg2 g4 h5 d2 a6 b2 h6 d4 h7 d3 a7 b4 Ng7 b3 Na3 b1R Nc2 b2 Ne1 Na6 Nef3 Nb4 Rh5 Rb8 a8N Bd6 Rg5 Rb5 Ra6 Nc2 Be2 Be6 Kh1 g2+ Kh2 g3+ Kh3 Na1 Nd4 f3 Nh5 f2 Ndf3 f1Q Rg4 f4 Ng5 f3 Nf4 f2 Nb6 Be5 Qa4 d1R Ra8 d2 Bd3 Qf6 Nge2 g1B+ Ng2 Bc7 Bc2 Bh2 Rc8 Qh1 Ngf4 f1Q+ Ng2 Q1f2 Ne3 Bf7 Rh4 g2 Re4 g1B Ng4 Q2f4 Nf2 Qc6 Na8 Qa6 Nb6 Rb4 Qd7 Rf1 Qg4 d1Q Ba4 Qd8 Bd2 Be6 Nc1 Qf7 Bc2 Rd1 Be3+ Rd4 Ba4 Kd6 Nd7 Ba5 c5+ Kd5 c6 Rb5 Nf8 Kc5 c7 Bc4 Ng6 Rb4 Qf4 Rb5 Ne5 Bg3+ Kg4 Qhh6 Kf3 Qh4 Kg2 Qhh5 Bd2 Rd6 Qg4 Rh6 Nd1 Bd4 Be3 Qhg6 Nf2 Qgg7 Na2 Rc1 Bc2 b1N Ba4 Rch1 Nc1 R1h4 Bc2 Na3 Ba4 Nf6 Bc2 Re8 h8N Ng8 Nhg6 Qh8 Ra8 Kd5 c8B Kc5 Bd7 Re7 Be8 Reb7 Bd7 Rb4 Bda4 R7b5 Rc8+
1br3R1/5R1b/6n1/1k1NNnrq/1rrB2qR/2r3NQ/R1B2p1b/2KR1q1n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 a4 Kd7 e4 Kc6 h4 b5 c4 g5 e5 f5 e6 g3 a5 g2 e7 d3 e8N f3 c5 d4 h5 f4 h6 b3 a6 b4 h7 b2 a7 b3 Rh3 f2 Ra4 g4 Ra3 f3 Ne2 g1R Rh1 g3 Rh2 g2 Rh3 Qa5+ Nbc3 b1R Rh2 b2 Ra4 Ne7 Ra1 Bf5 Ng3 Nd7 Ra2 Ne5 Nh5 Rc8 a8R N5g6 Be2 f1Q Qe1 Rg8 Kd1 d2 h8R Bh6 Rb8 Bf4 Ra8 Bb8 Bc4 Rh1 Rh6 g1B Rf2 Rh3 Nd6 Bh2 Nf7 Bd3 Nd5 Nf5 Bb3 Kb5 c6 Ra1 c7 b1R Rb2 Ra4 Ng3 Rc4 Ra2 Be4 Bc2 Rbb4 Bb2 Bd3 Bc3 Be4 Bd3 Rg7 Kc2 d1N Ne5 Rgg8 Rd2 Nf2 Kc1 Nh1 Ra7 f2 Bc2 d3 Rh4 Qa4 Rd1 Qa5 Bb2 d2+ Kb1 Rg7 Qe3 Qa4 Qb3 Bd3 Bd4 Be4 Rc1 d1Q Kb2 Qf3 Rd1 Qh5 Kc1 Rgg8 Ne2 Rhc3 Ng3 Nf8 Qa3 Rg5 Qb3 Ng6 Qa3 Rh8 c8R Rd8 Rf7 Bd3 Rc6 Rc8 Ra6 Be4 Ra8 Nh8 Raa7 Re3 Ng4 Qb3 Rg7 Nd6 Rad7 Bh7 Ne5 Nf5 Ne4 Ng6 Rdf7 Reg3 Rg8 Qbf3 Qc3 Qfg4 Qf3 Rh3 Qg2 Rg3 Qh3 Rgc3 Ng3
Bn2R1q1/K3RR2/2R3N1/4Bq2/1Np1rqQ1/Rqq4k/B2bn1q1/1bqr2r1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 e4 Ke6 d4 h5 g4 b5 a4 f5 a5 c5 a6 c3 e5 c4 g5 f3 Ke3 c2 a7 b3 g6 f4+ Ke4 h3 g7 h4 Bg2 b4 Be3 c1Q Qe2 f2 Nc3 f1Q Na4 h2 Bd2 b2 Ra2 b1R Nb2 h3 Ra3 f3 Qe3 f2 Ne2 b3 Bc3 Nh6 g8R Bb4 Qg5 Nf5 Rf8 Rg8 Nd3 b2 Rf7 Qe8 Rg1 h1Q Bf3 Ba5 Nb4 h2 Bg2 Qfd1 Re1 f1Q Bf3 Qhg1 Bh5 Qb3 Bg6 Qg3 Bh7 Nc6 Bg6 Rb8 a8B Rg7 Bh7 Qg8 Bg6 Rb7 Bh7 Re7 d5+ Kd7 d6 Ke6 d7 Nb8 d8R Nd4 Rd5 Bd7 Rc5 h1Q+ Rf3 Qhg2 Nf4+ Kf7 Kd5 Ne2 Be4 Bf5 Rc6 Ra1 Kc5 b1Q Bd4 Qb1c2 Rf2 Qcc3 Ng6 Qgf4 Bb1 Be4 Ba2 Bb1 Na6 Bb4+ Kb6 Re8 Ka7 Ba5 Rc7+ Ke6 Nb4 Rd7 Rf3 Rdd8 Rc6+ Rd6 Qe7+ Kf5 e6 Kg4 Be5 Rd1 Qf6 Qf5 e7 Qcf4 Rf2 Kh3 Qg5 Qfc1 Rf4 Qff2+ Rd4 Q2f4 Rd7 Rd8 Rb7 R8d4 e8R Re4 Rf7 Qd3 Nc2 Bd2 Nb4 Qdg3 Rf1 Qbc3 Rf3 Qb3 Rd3 Q3f3 Rdd7 Qfc3 Rde7 Rg1 Nc2 Qcf1 Nd4 Bd3 Nc2 Re1 Nd4 Bb1 Nc2 Rc1 Nb4 Qfd1 Rec7 Qdc2 Rb7 Rcd1 Rbe7 Qc1 Qg4+
1B2B1q1/2B2rNr/2N1bbn1/2n1R1b1/2RNbBb1/Q2b4/1K1kqpB1/4n1r1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 e4 Kf6 d4 Kg5 Kd2 f5 Kc2 b5 a5 c5 a6 b3+ Kb2 c3+ Ka3 c2 e5 g3 h3 b4+ Kb2 c4 a7 g2 e6 Qe8 d5 Ne7 d6 Rh7 d7 Ng6 d8B+ Be7 Bd2 c1N Qc2 Nd7 Ba5 Nc5 Be2 Bf6+ Nc3 N1d3+ Kb1 b2 e7 Ne1 Bf1 Be6 Nce2 c3 Qb3 c2+ Ka2 c1B Qd5 b3+ Ka3 b1B+ Kb4 b2 Ka3 Rb8 a8B Bd3 Qd6 Rb7 h4+ Kg4 h5 f3 h6 f4 Bb6 f2 Nf3 g1Q Nfd4 f3 Bg2 f1B Rh5 f2 Nc6 Qg8 e8N Rf7 Ned4 Bfe2 Qe7 Qf1 Bc7 Be4 Ra2 b1B+ Rb2 B2d3 Re5 Qe2 Bf4 Bbc2 Bb8 Bd1 Bb7 Bd2 Rc2 Be3 Rc4 Bd2 Rd5 Be3 Bfc7 Beg5 Re5 Kf4 Bc8 Ke3 Bd7 Kd2 Kb2 Qf1 Qf8 Bdg4 Qd6 Qe2 Qe7 Nb7 Qa3 Nc5 Nd6 Be7 N6f5 Bef6 Be8 Bf4 Na7 Nf8 Qa6 g5 Nab5 Rhg7 h7 Bh3 Nc6 g4 Bf1 g3 Qa3 g2 Nbd4 g1R Bg2 Ng6 h8B Be7 Rd5 Rh7 Bhe5 Bf6 Ng7 B4g5 Bh2 Bhf5 Re5 Bg4 Bf4+
1bR1r3/2B3qn/KN4r1/3Q1B2/2R1Rq1r/1BRNrr1b/2pk1nq1/b1r4R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 Ke2 Kd6 a4 Kc5 g4 Kd4 e5 c5 d3 f5 e6 h5 e7 b5 e8B f3+ Kd2 f2 a5 f4 g5 b3 a6 b2 g6 h3 g7 f3 a7 c3+ Kc2 c4 Ra2 h2 Na3 b1R Be2 f1R Bh6 b4 Bg5 h4 Be7 Ke3 d4 f2 d5 h3 d6 Qc7 d7 Nf6 g8R Nc6 d8R Rh4 Nf3 Ne5 Qe1 Bg7 Bc6 Nd3 Nd2 Rb3 Ba4 Nh7 Rg1 h1Q Bf6 h2 Ne4 Qg2 Rh1 Bh3 Rd4 Re8 a8R Bh8 Ra5 Qcg7 Re5 Rg1 Rf8 f1Q Bd8 Qf4 Bc7 Nf2 Qd1 Re1 Re6 Rh6 Bd3 Rg6 Rc6 Rf1 Nc5 Re1 Rg1 h1R Bf5 Rh2 Rh1 Rf1 Kc1 c2 Nd3 Rc3 Kb2 b3 Qh5 Kd2 Re4 Re1 Ra1 Re3 Rac1 Rf3 Qg5 Re3 Qd8 Rf3 Qd5 Re3 Ka1 b2+ Ka2 b1R Rg8 Rcb3 Rc5 c3 Nc4+ Ke2 Nb6 Kd2 Rcc4 Rf3 Rce1 c1B R1e3 c2 Rf8 Rc3 Bb3 Ba3 Rg8 Bd6 Rf8 Be5 Ka3 Rc1 Ka4 Bd6 Ka5 Be5 Bd8 Bb8 Kb5 Bg4 Ka6 Rh4 Bc7 Bh3 Rb4 Rcc6 Rec4 Rce6 Rc3 R6e7 Ree4 Re5 Rec4 Ree3 Re4 Qgh6 Rbc4 Be5 Rc6 Qg7 R3c4 Ba1 Rg8 Re7 Rc8 Re5 Rc3 Re8 R6c4
q6b/N2Qr1Bq/K7/1p1B1nbq/2nn2nr/nb1R4/RNk2BB1/2nB1R2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 a4 d5 c4 f5 h4 g5 e3 b3 h5 f3 h6 b2 h7 f4 a5 g3 c5 g4 c6 g2 c7 g3 a6 f2 a7 d3 Qh5 f3 Ra3 d4 Qc5 d2 Qc3 d1N Ra5 d3 Qc5 d2 Rh5 Nf6 Qd6 Bg7 Rd5 Nc6 Ne2 g1N Qb4+ Nd4+ Kb6 Kd3 e4 g2 e5 Ng4 e6 Kc2 e7 Nde3 e8R d1Q Rdb5 Be6 Qa4+ Bb3 Rf8 Nef5 Nf4 Nge2 Rd5 g1B Nc3 b1N Bg2 f1N Be3 f2 Nb5 Na3 Nd3 Nc1 Nb2 Nd2 Rd6 f1Q Bf2 Qe8 c8B Qd3 Rff6 Rb8 a8B Ndc4+ Ka7 b6 Ka6 Rb7 Na7 Re7 Qd7 b5 Bad5 Q1e2 Bcb7 Qa8 Bdf3 Bh2 Bbd5 Bf4 Rf8 Bg5 Rf7 Rd8 h8B B7f6 Bg7 Rh8 Ra4 Rh4 Ra5 Nb1 Ra2 Nba3 Bf8 Bh8 Bg7 Qe5 Be2 Ng3 Rf3 Qh7 Rd3 Ngf5 Rd1 Qf6 Rf1 Qfg6 Bd1+ Kc3 Re6 Qgh5 Re3+ Kd2 B1f3 Kc2 Rd3 Qd8 Be2 Qa8 Bd1+
5q2/kQ1K4/qq4B1/pnb3n1/R1RN1nBr/qb3NnB/rB5n/1qB1N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 Kd7 e4 Kc7 b4 Kb6 g4 f5 g5 a3 e5 h3 e6 h2 g6 h4 g7 f3 e7 f4 e8B f2 b5 f3 Qc2 h3 Qd1 a2 Qe1 Nc6 Bd2 Nf6 g8B Ne4 Bc1 Ng5 Bgf7 Be6 Qc3 Ne5+ Kd2 d3 Ke3 d2 Kd4 d1Q+ Bd2 Qc1 Qb3 Nd3 Bh5 Nf4 Ke5 d4 Na3 d3 Beg6 Bc5 Nc2 Qa3 Bc1 d2 Bg4 d1N Ne1 Rh4 Qb1 Kb7 b6 Nc3 Qb3 Kb8 b7 Qb6 Bg2 f1Q Qb1 f2 Ngf3 Bb4 c5 Bb3 c6 Nb5 Kf5 a6 c7+ Ka7 Bb2 Bc5 b8B+ Kb7 Rg1 h1N c8N h2 B2h3 Ng3+ Ke5 h1Q Ne7 Ra7 Nf5 Ra8 Bd6 Ka7 Rg2 Qhg1 N5d4 Qh1 Qe4 Qhg1 Rc1 a1Q Rc4 Qb1 Qd5 Qe2+ Qe4 f1N Bc1 Qed3 Ra2 Qf2 Kf6 Qde2 Ke7 Nh2 Kd7 Qff1 Be5 Qed3 Qc6 Qf5+ Qe6 Qf8 Qd5 Qb4 Ne2 Nc3 Neg1 Re8 Ne2 a5 Ra4 Qa3 Rcb4 Re6 Bd4 Re3 Qc6 Rd3 Qe4 Rd2 Qd5 Ra2 Qe4 Nd1 Bdb2 Nc3 Ned4 Qfa6 Rc4 Nb5 Qb7+
1rN1K1Rb/b2n2k1/1qrB4/1B3r2/R1nN1RbR/R1b1b3/2p4q/1qN2Qr1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 d4 f5 e4 Kf7 a4 g5 h5 b3 d5 c3 d6 c4 e5 c2 a5 b2 e6+ Kg7 d7 f3 Ke3 f2 Kd4 c3 Ke5 f4 e7 g3 Kd6 b4 a6 g4 a7 b3 Bb5 f1Q Nf3 g2 Qe2 g1B Be3 c1B Ra5 g3 Ng5 g2 Qg4 c2 Be2 f3 Qh3 f2 Ra3 Nc6 Nc3 b1R Bf4 b2 Na2 Na5 Nf3 Nf6 Nd4 Bd2 Bb5 Rb8 a8R Qe2 Nc1 f1R Bg3 Rf5 h6+ Kf7 h7 Bc3 Be5 Bg7 e8N Be3 Rf1 g1B Rf4 Qh2 Qf1 Nc4+ Kc6 Rg8 Bd6 Bh8 R8a4 Qa5 d8R Rg6 Rb4 Be6 Rba4 Nd7 Rc8 Qa6+ Kc7 Rgf6 Kd8 Kg6 Ke7 Qb6 Rd8 Ra1 Rc8 b1Q Rd8 Bg7 h8R Bgf2 Rhh4 Bh8 Bc7 Bg1 Nd6 Kg7 Nc8 Bgf2 Ke8 Rh6 Bd6 Rg6 Rb4 Rg1 Ra8 Ra7 Ra4 Rc7 Ra3 Rc6 R8a4 Rh5 Ke7 Bg4 Rdf8 Rf5 Ke8 Qa6 Nde2 Ba7 Nd4 Be3 Re4 Qa5 Rf4 Qb6 Rg8+
nB3rr1/1b3qk1/1QB1b3/BnK4N/2bN1rn1/N2pRN2/1N1b4/2b1Rr1q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 f5 h4 Kf7 c5 d3 e5 d2 e6+ Kg7 e7 b3 c6 g3+ Kf3 g2 a5 b2 a6 g4+ Ke2 g3 Kd3 f3 Kd4 f2 c7 f4 a7 b4 h5 f3 Nc3 b1Q Rh4 b3 Ba3 b2 Rh1 Nd7 Bb5 f1R Na2 f2 Qb3 d1N Ba4 Nb6 Nf3 g1B Nb4 g2 Kc5 d4 Bc6 Bb7 c8N Qe8 Nd3 Qf7 Nd6 Nh6 Nc4 Nc3 Bb4 Rg8 Rh3 Nb5 Ba5 Ng4 Na3 Bh2 Qe6 g1R Qd6 Re8 a8N Bf4 Nc7 Bc1 Qd8 Na8 h6+ Kf6 h7 Bfh6 Rg3 Bhd2 Ne6 Ref8 h8B+ Kg6 e8N Rh1 Bf6 Rh4 Qb6 Kh7 Nb4 Qe4 Bg5 b1B Bf4 Ba2 Nd3 Bc4 Nb2 d3 N8g7 Kg6 Nh2 Qh1 Nh5 Kh7 Nd4 Kh8 Nf6 Kg7 Re3 Rh5+ Nd5 Rf5 Bb8 Rf4 Nf6 Rg1 Qd8 f1B Qb6 Bh3 Nhf3 Rf1 Na4 Bb2 Rae1 Bbc1 Nb2 Nf2 R1e2 Bhe6 Re1 Ng4 Nh5+
1B2BN1K/bRbn4/2N1n1r1/RqQq1r1p/4bN2/1N2n3/2r1N1R1/1bbr3k b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 a4 h5 g5 e5 c3 b5 f5 d3+ Ke3 h3 f6 d2 a5 h2 a6 b3 g6 b4 g7 b2 f7 b3 a7 Rh6 Qc2 d1R Ba6 Ne7 g8N Nec6 Ra5+ Bc5+ Ke2 e3 Kf3 e4+ Kf4 e2 Kf5 e1B f8N e3 Bd3 e2 Bf4 Bb7 Qc1 Bd2 Bc7 e1B Na3 b1Q Be5 b2 Nc2 Rg6 Ra1 Bg3 Ra5 d6 Rb5 Nd7 Nd4 Rc8 a8R Bg5 Rb3 Ba7 Nge2 Rc7 Qc2 Bc1 Rg1 h1R Rg2 Rhf1+ Bf4 Rc8 Bb5 Qa5 Rb4 Nd8 Nb3 Ne6 Ba4 Bc6 Rb7 Qa2 Bb5 b1B Ba4 Qb5 Nf6+ Kc4+ Nd5 Rc7 Nd2+ Kc5 c4 Qab3 Nec3 Kd4 c5 Rf2 Nb4 Bf3 Nd3 d5 c6 Rc8 Bd6 Ke3 Ne2 d4+ Qc5 Qd5+ Be5 Bf4 c7 Bh2 Nb3 Bg3 Qc2 Rff1 Ndf4 d3 Qc6 d2+ Qc2 Bb6 Ra5 Ba7 Rf2 Bh1 Rh2 Kf3 Rg2 Rd8 c8N Rf2 Ne7 Rc8 Nd3 Rc6 Qc5 Rc7 Qa3 Rc2 Qc5 Rff1 Nc6 Bf4 Rg4 Bg3 Rg5 Kg2+ Ndf4+ Kh2 Rg4 Bf3 Rg5 Kh1 Rg4 Bh4 Rg3 Bd8 Rg2 Bc7 Rf2 Rgg1 Rg2 Rf2 Kg6 Be4+ Kf7 Rf3 Kg8 Rff1 Rg7 Rg6 Kh8 Rf2 Ng2 Rf5 Ngf4 Re1 Bd6 d1N Rg8 Ne3 Be5 Bcb6 Bb8 Bc7 Rg7 Rd1 Rg8 Rgf6 Rg2 Rg6 Nd3 Ne5 Ncd4 Qa6 Be8 Nd7 Nc6 Qb5 Ndf4
1Bq2RK1/1NR3n1/1b4r1/Bp1Bbr1n/n3n1N1/8/B2rkRBr/1Qq2br1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 a4 Kd5 c4+ Ke4 a5 f5 c5 g5 h5 b5 e3 d5 a6 d3 c6 f3 Kg3 d2 c7 b3 h6 b2 h7 f4+ Kh2 d4 a7 f2 Nf3 g3+ Kg2 g4 Qe1 d1Q Ne5 d3 Rh5 d2 Rh3 f3+ Kh1 g2+ Kh2 g1B+ Kg3 Nc6 Rh2 Nf6 Kh4 g3 Kg5 g2 Kg6 Bg7 Kf7 Nh5 Ng4 Be5 Na3 b1N Nc4 Nc3 Na5 Nd4 Nb7 Na4 Ra2 Ne6 Rc2 Rb8 a8B Neg7 Rc6 Rg8 h8B Qc2 Bb2 d1R Bc3 Rd2 Ba5 Qc1 Qd1 Bd7 c8B Qc7 Bc4 f1R Bd5+ Kd3 e4 f2 Qb3+ Ke2 Qb1 Qd8 Rc7 Bf5 Bce6 Qc8 Ba2 Bh7 Bed5 Bf5 Nd8 Rb6 Nb7 Rh6 Ne3 Bh3 Ng4 Nf5 Bf6 Rgg6 Bg5 Nfg7 Bf4 Re1 Bg3 f1N Bf4 Bb6 Bg3 Bc3 e5 Rh8 e6 Be5 Bf4 Nfg3 e7 Ne4 e8R Rf1 Rf8 Rh7 Kg8 Rhh6 Rh1 g1R Bg3 Rf5 Rh2+ Kd1 Rf2 Bf1 Be6 Nf4 Bed5 Rh2 Rc2 Nfh5 Bf4 Bed4 Bb8 Be5 Rc7 Ng5 Bg2 Ne4 Nc5 Ke1 B8d5 Kd1 Nb7 Ke1 Rf3 Ke2 Rf2+
r2k2BQ/1bN4b/2Rqr1rp/6nn/2rbn2q/1RBB3n/1R1n2K1/R2N2R1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 e4 d5 g4 f5 c4 h3 a4 b3 g5 b2 e5 d3 e6 d4 g6 f3 a5 d2 a6 f4 g7 b4 a7 d3 c5 h6 c6 h2 c7 b3 e7 Nd7 Nh3 Ndf6 Nc3 b1R Nb5 b2 Na3 Bb7 c8B Nh7 Be2 Qd6 Nc4 Ng5 Qc2 d1R Nb6 d2 Rg1 h1Q Ra3 Re1 Rg4 Nf6 g8R Nh5 Bd3 Re6 Rg1 d1N+ Kf1 f2 Bd2 Rc1 Rb3 b1B Rg6 Rg8 Ba5 Bg7 Qb2 Rc4 Bc3 Bd4 Nd5 Bc2 Rf6 Rg6 Qa1 Qe4 Rb2 Qe1+ Kg2 f1N Nf2 Nfg3 Rb3 N3e4 Qb2 Rb8 a8R Bb1 Ra1 Ra8 Nh3 Qh4 Nf2 Re5 Bg4 Re6 Nc7+ Kd7 e8R f3+ Kf1 Bc2 Re7+ Kd8 Ref7 Re8 Be6 Re7 Rg7 Bb1 Bg8 Re6 Nh1 f2 Kg2 f1N Nf2 Re8 Re7 Nfd2 Re5 Re6 Reb5 Bc2 Rb6 Bb1 Rc6 Bc2 Rf5 Bb1 Rfb5 Bc2 Ng4 Bb1 Ne3 Ndf2 Nd1 Nfh3 Ba5 Bf2 Qh8 Bd4 Bc3 Nef6 R3b4 Rg7 Bf1 Bh7 Bd3 Nfe4 Rb2 Rgg6 R5b3
6Bb/p2k3n/1br2rq1/NK3N1N/4bRR1/3Rb1Rq/Q2n2b1/2BnRrr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 Kd3 g5 e4 f5 h4 a3 b4 f3 c4 f4 e5 g3 e6 a2 b5 f2 b6 g2 e7 g4 c5 f3 h5 g3 b7 Bh3 h6 Nc6 b8R Nf6 h7 Bh6 Rb5 Rc8 Be2 f1Q Rh2 f2 Rb7 Na5 c6 Nc4 c7 Rf8 h8R Be3 Rh7 Qd6 Rb3 Kd7 Rf7 Nh7 Rf4 Nd2 e8R Qg6+ Ree4 Rf6 Qc2 Bf5 Nh3 g1B Na3 g2 Rab1 a1B Qa2 Bb2 Nc4 Ba1 Na5 Bc3 Kc2 Ba1 R1b2 d3+ Kc3 Bb6 Kb4 d4 Re3 Be4 Rh1 Nc4 Bd2 Rf5 Bc1 d2 Rh4 d1B Nf4 d3 Rg4 d2 Nh5 Rf7 Bd3 Bdf3 Kb5 d1N Rd2 Bh8 Re1 Rf6 Rb4 Ba8 Rh3 Bfd5 Be4 Bb7 Rd4 Nd2+ Bd3 Ba8 Bc4 Qfd3 Rb3 f1R Rdf4 Bgc5 Rhf3 g1R Ra3 Qe3 Rd3 Bd4 Rh3 Bg2 Bg8 Bae4 Rhf3 Rcf8 c8N Rc6 Ne7 Rff6 Rh3 Qg3 Nf5 Qh4 Rc3 Be3 Rhg3 Qh3 Rd3+
B3n3/p1R1k1N1/qqbr2rb/n2B1r2/2N1n3/B1N1Q1B1/bRB1K3/1n1n3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 d5 b4 f5 g4 h5 e4 h3 c5 h2 e5 d3 e6 a3 b5 d2+ Ke2 d4 b6 d3+ Kf3 h4 b7 h3 e7 a2 g5 Rh5 g6 Nc6 b8B Na5 c6 Nf6 g7 Be6 g8N Bh6 Nc3 Qb6 Qc2 d1R c7 d2 Rb1 a1Q c8B Ba2 Ke2 f3+ Kd3 f4 Qb3 f2 Bb7 f3 Bg3 Rf5 Bg2 f1N Ba3 f2 Nf3 Kd7 Be4 Ne8 Rb2 Rd8 Rg1 h1R Bd5 h2 Ke2 Rb1 Ba8 d1N Nd2 Rc1 Nc4 Nd2 Re1 f1N Nf6+ Ke6 Bgb7 Rd6 Nh5 Nb1 Ng7+ Kd7 Bg2 Nfd2 Bgd5 Ne4 Rf1 Rg1 Rf3 h1B Re3 Nc7 e8B+ Ke7 Ba4 Ne8 Rf3 Rh5 Rf8 Rf5 Bf4 Rg6 Bg3 Bg2 Rh8 Ndf2 Rg8 Rh1 Rh8 Nd1 Rg8 Qb8 Qb6 Qd8 Qe3 Qb6 Bc2 Qa6 Rb8 Qb2 Rf8 Qbb6 Rh8 Qc6 Rb2 Qcb6 Rf8 Nf6 Rd8 Ne8 Rc8 Qc5 Bf4 Qcb6 Be6 Ng5 Bg3 Bc6 Bd5+ Ne4 Rc7+
N2kRQ1n/n2b1rnN/8/q2r4/1nnpB3/2bNBBR1/1r1nK3/NNrn4 b - - 0 1 illegal: No possible last move
3rb2b/1p2K2n/B1N2rb1/BqB1b2r/bRn3N1/2NQb3/1N4rN/k1r1R3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Kc5 h4 d5 c4 g5 a5 f5 h5 b3 a6 Kb4 a7 g3+ Kf3 g2 e5 d3 h6 g4+ Kf2 g3+ Kf3 b2 h7 d4 c5 d2 e6 d3 c6 Bd6 c7 Qd7 e7 Nf6 e8N Qb5 Nh3 g1B Bg2 Nc6 Ra6 Na5 Rh2 Be5 Bf1 g2 Ng5 Nc4 Ng7 Bd7 c8N Bgd4 Rh4 g1B Ra1 Be8 Be2 Bge3 Nc3 b1B Ne7 Rd8 a8N Rg8 h8B Nh7 Qc2 d1B Nh5 d2 Qd3 Ba4 Ba3+ Kb3 Nf6 d1R Ng4 Rc1 Bc5 Kb2 Nc6 Rg6 Bg7 Rh6 Nb6 Rh5 Bgf8 Rg1 Bb4 Rg2 Bfc5 Bh8 Ba5 Bde5 Nge4 Bbc2 Re1 Bb1 Nef2 Ka1 Ncd1 Bbc2 Nd5 Bb1 N5c3 Bbc2 Nb2+ Bb1 Bd1 Bbc2 Ke2 f3+ Kf1 f4 Nh2 Rd4 Qe4 Nd6+ Re2 Qb6 Rg4 Bb1 Bb3 Rd5 Bc4 Bbc2 Qd4 Bcg6 Ba6 Qb5 Qd3 Rd4 Nfe4 f2 Nf6 Nc4 Rh4 Rd8 Rg4 Nd6 Rh4 Bd2 Re3 Bc1 Ke2 Bd2 Kf3 Bc1 Nfe4 f1R+ Nf2 Rd1 Re2 Be3 Re1 Rc1 Rg4 Nf5 Ke4 Nd6+ Kd5 f3 Rb4 Nc4+ Ke6 Rgg5 Bd6 Rg2 Nfg4 f2 Ke7 f1R Bc5 Rf8 Re2 Rf6 Re1
2r1r3/1nB1n1KR/2Bb1R2/Q4B2/NqNk1BbR/qbq5/1q2B2p/r4b1n b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Ke5 g4 b5 a5 d5 c5 h5 a6 b3 a7 b2 f3 e3 Kd3 b4 c6 h3 g5 b3 c7 e2 g6 e1R g7 h2 Nh3 h4 Rg1 h1N Rg3 Nd7 Na3 b1Q+ Nc2 b2 Ng5 h3 Ra2 h2 Ra4 Ba6+ Rc4 e6 c8B Qe7 Ne4 Qa3+ Nc3 Bd6 Rg6 Ne7 Qd2 Re8 g8R Qba2 Rf8 b1Q Rf7 Qbb4 Rgf6 Q2b2 Rh7 Rd1 Ne3 Nc5+ Ke2 Bb5 Na4 Nb7 f4+ Ke4 f5 e5 Bd7 Rac8 a8B Q4c3 Nc2 Qcb4 Qc3 Ba6 Bf4 Ra1 Kd2 Bb5 Be2 Ba6 Rc5 d3 Rc4+ d4 Be6 Q2b3 Ne3 Qb1 Rg6 Bb5 f6 Q1b3 f7 Qbb2+ Nc2 Ba6 Bf5+ Kd5 f8B e4 Bg7 Bb5 Bge5 Ba6 Rf6 Bb5 Bd1 e3+ Ke1 d2+ Ke2 d3+ Kf3 e2 Kg4 e1Q Kh5 Qe3 Be2 d1B Kh6 d2 Kg7 Ba6 Re4 Qf3 Qc7 Qfc3 Qa5+ Bb5 Bh5 Bg4 Ne3+ Kc6 Rd4 Bf1 Nc4 d1B Re4 Bb3 Rd4 Bgh3 Be2 Bg4 Bg3 Bh5 Rh4 Bf3 Bef4 Bg4 Qa7 Kd5 Qa5+ Bc5 Bc7 Kd4 Bgf4 Bd6 Bf3 Nd8 Bac6 Nb7 Be2
R3bq1B/N1KN1n1N/1N1r1bn1/2n2R2/1r2p3/qBn1kr1Q/3N3b/1q1q1B2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 h5 c5 b5 c6 d5 g3 e5 a5 e3 Kf3 b3 a6 h3 a7 d3 c7 b2 Ra6 d2 Be2 h2 Nh3 b4 Qf1 d1R Rb6 b3 Ba6 e2 Qg2 e1B Rf1 h1N Qd2 d4 Rd6 d3 Qa5 d2 Rg1 h4 Rd7 Ne7 Qb4 e4+ Ke3 Bg7 Qc3 Qf8 Rf1 Ng6 Ng5 h3 Rd8 h2 Nh7 Bd7 c8N Nc6 Rf2 Qa3 Bf1 Nce5 Kd4 Bf6 Kd5 Rb8 a8N Rf8 Nab6 Nf7 Na7 Be8 Rf3 Rb7 Ra8 Nf2 Qd3 Kg4 f5 h1Q Ke6 Qh6 Rf4+ Kh5 g4+ Kh4 Qc3 Nd3 g5+ Kg3 Qc8 Nc5+ Kd5 Rd7+ Kc6 Rd4+ Kc7 Rb4 Qe6 Bf2 Qc8 Bg1 Qe6 Ne7 g6 Bh2 g7 Ng6 g8B Qg7 Nc3 b1N Bb2 Qh8 Ba1 b2 Qd7 Bg5 f6 Qg7 Rf5 Qh8 Ncd5 Nc3 Ne3 b1Q Nec4 Qg7 Rd5 Kf4 Qh3 Re1 Re5 d1Q Nd2 Re3 Rd5 Rf3 Rf5+ Ke3+ Kc8 Nh6 Bb3 Nf7 Bb2 Rg8 Ba1 Qf8 Bb2 Nfe5 f7 Bf6 Kc7 Rh8 Ng5 Rh6 Nh7 Qh8 f8N Nf7+ Rf4 Qg7 Nfd7 Qf8 Ba1 Rh5 Bb2 Rd5 Ba1 Rd6 Bb2 N3a4 Be5 Nc3 Rf5 Bh4 Bg7 Bf6 Bh8
3R2NQ/2q1br1n/K1bNBr2/1n4R1/2Nk1Bb1/5r2/1n1N2np/1N1nB1nr b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Ke5 g4 b5 a5 d5 c5 h5 a6 b3 a7 b2 f3 e3 Kd3 b4 c6 h3 g5 b3 c7 e2 g6 e1N+ Kd2 d3 Kc3 d4+ Kb4 h4 Kb5 h2 g7 d2 Nc3 b1B Na2 b2 Nh3 d3 f4+ Kd4 f5 e5 f6 e4 f7 e3 Qf3 d1N Qg3 d2 Bc4 e2 Be6 Nf3 Ng5 e1N Rf1 h1R Qh3 Be7 f8B Rh7 Bd5 Be4 Rg1 b1R+ Ka5 Bg4 Nc3 Rb6 c8N Qc7 Nb1 Ng2 Nd6 Na6 Be6 Bc6 Nge4 Nf6 g8N Rf7 Bg7 Rab8 a8N Nb2 Ra2 d1N Ned2 Rb3+ Nb6 Rbf8 Bh6 Nh7 Bf4 Rd3 Bg3 Rf6 Be1 R8f7 Qh2 h3 Ra4+ Ke3 Rd4 Rc3 Rd5 Rb3 Rg5 Kd4 Rf1 Ng1 Rf3 Qb8 Nbc4 Nc7 Rg3 Nb5 Ka6 Qc7 Rf3 Be8 Rff5 Rf3 Rc5 Qb8 Rc8 Bc6 Rd8 Qc7 Qg3 h2 Qh3 Nf8 Qh8 Nh7 N2e4 Bf5 Bf4 Bg4 Ned2
B4R1R/2B1k2K/r3p1NB/Q1n4B/1bn3nN/1r1n1b2/b4rR1/2qBnbn1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 c4 b5 g4 d5 a4 h3 f4 b3 f5 e6 c5 b4 g5 e3 Kd3 h4 c6 h2 c7 h3 f6 b2 g6 b3 a5 e2 a6 e1N+ Kd2 d3 Ke3 d4+ Kf4 d2 Kg5 d3 a7 Nd7 g7 Nc5 Kg6 Nh6 g8R Ng4 f7+ Ke7 Ne2 Ba6 c8B Qc7 Na3 b1R Nc2 b2 Rg1 h1N Ra3 h2 Rg2 Ng3 Bd7 h1B Be8 Rh2 Nf4 Ne2 Ne3 Ng1 Qa4 d1N Rh8 d2 Qa5 Ndf2 Be2 Nfd3 Bd1 Bb5 Ra2 Ba6 Rf2 Bf3 Neg2 Bb5 Rf1 Qc6 Nh4 Rf2 Kh7 Ba6 Bb3 d1N Bc2 Nde3 Bd1 Nc4 Nfg6+ Kf6 Bh6 Qc7 Nf5 Qf4 Nfh4 Qc1 Nf4 Bd6 f8B Bb5 Bfg7+ Ke7 Bd4 Nb7 Bh5 Bb4 Be5 Nbc5 Qa4 Rb8 a8B Ra1 Bc7 b1B Re2 Ba2 Qa5 Rb6 Rb2 Ra6 Rc2 Rb1 Nfg6+ Kf6 Be2 Rh2 Ne7 Nd6 Bd5 Ndf2 Bb7 Rb3 Bf8 Bh1 Bef3 Bd3+ Bbe4 Nc4 Neg6 Be2 Bb7 Nfd3 Bh6 Kf7 Rf2 Bf1 Ba8 Bhg2 Ne5+ Kf6 Bd1+ Ke7 Rff8 Bf3 Rd2 Re2 Rb2 Re4 Rf2 Re2 Rg2 Rf2 Neg6+
Q7/n1rR1pRK/1b5n/1R2r1b1/5N1k/2BBrbq1/n2Rn1N1/1nn1bN1R b - - 0 1 illegal: No possible last move
1b1r4/n1BqN1k1/2Qn1N1N/N2r1bR1/1nr5/Nb4p1/R3B1B1/Knrbb3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 c4 f5 Kc2 Kf7 Kb2 g5 h4 b5 a4 b3 e4 d3 h5 d2 e5 d4 e6+ Kg7 a5 f3 a6 f4 c5 b4 a7 g3 c6 g2 e7 d3 e8B g4 c7 g3 Ra5 f2 Ra3 f3 Ne2 g1B Rh3 Na6 Nf4 Qd7 Bf7 Nf6 Rh4 Ne4 Bd5 Bd6 Ra4 Rd8 Ka1 b2+ Ka2 Rb8 a8N Rb5 Qc2 d1B Nc3 b1N Nb6 b3+ Ka1 d2 Nc4 Na3 Be2 f1R Na5 f2 Nb1 Nb4 Qc6 Be5+ Bb2 Nd6 Bg2 Rd5 Rh1 Nab5 Na3 Na7 h6+ Kg8 h7+ Kg7 h8N Bc2+ Nb1 Rc1 Nf7 f1R Nh6 d1B Rh5 Bf2 Ra2 Be1 Bc3 Rh1 Rf5 Rh4 Nh5+ Kh7 Bb2 Rc4 Nf6+ Kg7 Rh5 Bf5 Bd4 Ba6 c8N Bb5 Ne7 Ba4 Kb2 Bf4 Bb6 Be5+ Ka3 b2 Bc7 Bab3 Rg5+ Kh8 Nc3 b1N+ Kb2 Bf4 Ka1 Be5 Rh5 Bf4 Nb5 Kg7 Na3 Ne4 Bb6 Bb8 Bc7 Nd6 Rg5+
1R1q2n1/bbNnR2K/Br2n3/nbbbk2R/2pR4/7Q/3rNR1N/3rBr2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kh5 b5 e4 c5 a4 c3 g4 f3 d4 c2 e5 f2 a5 f4 a6 h3 g5 f3 a7 b3 g6 b2 g7 h2 Qd3 b4 Qe2 b3 Qb5 Nd7 Bd3 f1B Be3 c1B Qb7 f2 Na3 b1N Bg5 b2 Bb5 Nd2 Qf3 b1R Ne2 Rb8 a8R Rb6 Ba6 Nb3 Bh4 Bb7 Nb5 Na5 Rb8 Be3 Ra2 Rd1 Qh3+ Kd5 e6 h6 Kg6 h5 Be7 h4 Nc7+ Ke4 d5 Ke5 d6 Bd5 Nc3 Bb5 Ne2 f1R Bg5 c4 e7 Bc5 Bd2 Rh5 e8N Rg5+ Kh7 Rg2 Be1 Bg1 Nd4 Rgd2 Nf6 Bb7 Ne2 Bd4 Rg1 h1N Rg2 Bc5 Rh2 Ng3 Rh1 Ne4 Ng4+ Kf5 Nh2+ Ke5 Rc2 Bf2 Rb2 Nec5 Rc2 Ne6 Ra2 Nh6 g8R Be7 Rf8 Ng8 Rf7 Bc5 Rf2 Bg5 Ra3 Bge3 Rd3 Bd5 Rd4 Bb7 Rg1 Bd5 Rg7 Bb7 Re7 Bd5 Qg2 h3 Rh4 Bb7 Rh5+ Bg5 Rf4 Ndf6+ Kg6 Qc8 d7 Bb4 d8R Rbd6 Rdd7 Qd8 Bg3 Rc6 Rd6 Nd7 Be1 Ba3 Rhh4 Bh6 Rff7 Be3 Rf2 Ba7 Rdd4 Rb6 Kh7 Bc5 Rh6 Rg1 Nf1 h2 Rhh4 h1B Qh3 Bhd5 Nh2 Rf1 Rh5+
n2r1rNR/b2k4/pbq1rn1N/1bB1N2Q/2bnBK2/5B2/Bn3Br1/3R3n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 b4 d5 c4 h5 g4 d3 e4 h3 c5 d4 b5 h4 b6 a3 e5 h2 e6 a2 e7 h3 c6 a6 g5 f3 c7 f2 g6 f4 b7 f3 g7 Nc6 b8B Be6 c8B Qb6 Be2 f1B Bg3 f2 Qb3 Nf6 g8N Bc4 Nf3 Rh6 Bf5 Rd8 Be4 Kd7 Rg1 h1N Na3 h2 Rb1 a1B Kd1 d2 Kc2 d1N Kd2 d3 Rg2 Nc3 Bd6 Nd4 Ke3 d2 Qb5+ Qc6 Ng5 d1N+ Kf4 Na4 Nf7 Nb6 Bc5 Na8 Be3 Nb2 Rd1 Rg6 Rg1 Rg2 B2f3 Bfd3 Nfh6 f1R Qa5 Bb5 Bf2 Bdc4 Bb1 Re1 Ba2 Re6 e8B+ Kc8 Bb4 Bc5 Bg6 Bb6 Bc5 Kd7 Bf5 Ng3 Bc2 h1R Bce4 Rh5 Rh1 Rg5 Rh2 Nh1 Rh4 Rg7 Rh3 Rf7 Rh5 Rff8 Rh2 Be2 Nc4 Bf1 Nd6 Bfc4 Ndf7 Ba7 Ne5+ Kc8 Nf5 Na4 Bb4 Bc3 Rh5 Nb2 Nd3 Ba4 Rh8 Kd7 Nfh6 Be1 Qh5 Bab5 Ba3 Ba5 Bc5 B5b6 Ne5+
6Nk/B1nrb1r1/p1BB1nnq/KN2Qb2/5B2/nN4n1/R3r1R1/B3nn1n b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 h4 e5 c4 g5 f4 Kg7 b4 d5 h5 a3 f5 g3 b5 g2 c5 g4 c6 d3 Kc3 a2 c7 d2 b6 g3 b7 e3 Bb5 d4+ Kb3 d3 Ka4 e4 Nh3 g1N Qe2 d1N Qh2 e2 Bb2+ Qf6 Bc4 e1R Kb5 e3 Ka4 g2 Nf4 e2 Bc1 d2 Be6 Nf3 Qg1 Ne5 Qe3 g1N Ka5 Be7 Nc3 Nf2 Nd3 d1N Nc5 Qh6 Nb3 Rh7 f6+ Kh8 f7 Na6 f8B Ng6 b8B Nf6 Qe5 Rg7 Rh2 Nh1 Rg2 Ne3 Nb5 Nf1 Bd5 Bf5 c8N Nc7 Bf4 a6 Ba7 Rb8 Bc6 Rb7 Rb1 a1N Rb2 Nc2 Ra2 Bc5 Ne7 Na3 Ng8 Be7 N5d4 Nh3 Nb5 N3f2 Nd6 N2e4 Nb5 Qg5 h6 Neg3 h7 Qh6 Bg5 Rb1 Bf4 e1N Nc5 Rb2 Nb3 Bd8 Bb4 Re2 Bd6 Rd7 Bd4 Be7 Ba1 Kg7 h8B+ Kh7 Bg7 Ra7 Bf8 Kh8 Bc5 Rb7 Ba7 Bb4+ Ka4 Rg7 Rh2 Ne6 Be7 Rd7 Rg2 Bd6 Ka5 Bc5 Bd8 Be7 Bdb6 Nc7 Bc5 Nfh5 Bb4 Nf6 Bd6
4n1RK/1nqbrqNb/qN3b2/nN1N2RQ/5q2/k1p3p1/N4rBB/1R4q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 g5 a5 b5 d3 f5 h5 g3+ Kf3 b3 a6 Kb4 a7 c5 d4 b2 e5 g4+ Kg2 c3 e6 c4 e7 c2 e8N c3 d5 Nd7 h6 Bg7 d6 Ngf6 h7 Qc7 Bd3 f3+ Kf1 g2+ Kf2 g3+ Ke3 f2 Kf4 f1Q+ Kg5 f4 Kg6 f3 Rh2 f2 Nh3 g1Q Be3 c1N Be4 Rf8 h8R Nb3 Bg2 Na5 Na3 Nc5 d7 Ncb7 d8N Bd7 Rg8 Qfc4 Rb1 f1Q Bb6 Q4f4 Qh5 Rf7 Bf2 Re7 Nc6+ Kb3 Bd4 b4 Nb5 Ka2 Rh1 b3 Bc5 Bh8 Ng7 Rf8 a8N Ne8 Kh7 Q1c4 Be3 Qcf7 Nb6 Qgf1 Bg1 Qe2 Nba7 Ka3 Bh2 Qef1 Nb4 Qa6 Rbe1 b1B+ Re4 b2 Na2 Qc1 Nf4 Bc2 Rd1 b1Q Nfd5 Q1f4 Rf1 Qd1 Rh1 Qd4 Re1 Qg1 Rb1 Bd1 Re5 B1g4 Rg5 Bgf5+ Kh6 Be4 Ne6 Bf6 Ng7 Bf3 Kh7 Be4+ Kh8 Bg6 Qg4 Bh7 Qh5 Qf5 Qh6 Qh5 Re1 Bd4 Nc1 Qe4 Rf1 Rf2 Na2 Qf7 Qh5 Bf6 Rb1 Qef4 Nb5+
R1B4K/1N1qB2p/Q2R1B2/2Nn3r/4q1qr/pBB1n1Nb/1q5r/2b1q1bk b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 f4 Kg6 g4 d5 b4 a5 c4 e5 b5 h3 g5 Kf5 g6 Kg4 f5 Kg3 f6 h2 f7 d3+ Ke3 a3 g7 a2 c5 d2 c6 a4 c7 d4+ Ke2 d3+ Ke3 a3 b6 Qf6 b7 Nh6 g8B Na6 b8B Nb4 Nc3 Ra5 Nf3 Bh3 c8N Bc5+ Nd4 Qh4 Be2 Kg2 Rb1 a1Q f8B Qb2 Qc2 d1Q Rf1 h1R Na4 d2 Qd3 Rh2 Bb3 Rg8 Qa6 Rg4 Rf6 Kh1 Rd6 Rf4 Bb5 Qdg4 Bd7 d1Q Bd2 Qe7 Bde6 Qd7 Be1 Qdc2 Be7 Ba7 Nc5 Qcg2 Bc2 Rb5 Ne2 Nd5+ Kd2 e3+ Kd3 Ra4 Bb3 Nf5 Bc7 Rab4 Bcd8 Rf4 Bf6 e4+ Kc4 Bb6 Bde7 Ra5 Rc1 Q2f3 Rc2 Ba7 Bec3 Bb6 Ng1 e2 Rc1 e1Q Ne2 Nfe3+ Kd4 Ng2 Ke5 e3 Rd1 Rb5 Rd4 Ra5 Ra4 Rc4 Nf4 e2 Nh5 Nge3 Bf5 Qc7 Ke6 Qfe4+ Kf7 Qd7 Ng3+ Kg2 Re6 Nd1 Qb5 Qeb1 Nce4 Qf4 Kg8 Qa7 Kh8 Nb4 Ba2 Bg1 Qa6 Ne3 Bg6 Rh5 Qb5 Nbd5 Ncd6 Qf5 Nc5 Rch4 Qa5 Qbe4 Bb3 Qfg4 Bf5 Qc7 Ndb7 Qc6 Nf1 Kh1 Rd6 Qb5 Bc8 Qbd7 Re6 Qed2 Rd6 e1B Qa8 Qf2 Qa7 Bd2 Raa6 Bc1 Ng3+ Kg2 Qb6 Qf1 Ra8 Qe1 Nf5 Kh1 Qc6 Qbb1 Qa6 Qb2 Ng3+
qR1n2bN/b2p1NB1/B3qk2/n6r/2b2bB1/Np3N2/rRr2n1Q/3bN1K1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 g5 e4 f5 a4 b5 h4 b3 e5 f3 h5 g3+ Ke1 d3 e6 g2 Kf2 d2 a5 g4 h6 g3+ Ke3 f4+ Ke4 b4 c5 f2 Kf3 b2 h7 b3 a6 Nc6 a7 Kf6 e7 Bb7 e8B Bd6 Ba6 f1R+ Ke2 Nh6 Na3 b1Q Bh5 Na5 c6 Qf5 c7 Bd5 c8N Nf7 Nf3 g1B Rb1 g2 Nc2 Qh3 Rb2 Qe6+ Ne3 Qde8 Qc2 Nd8 Bg4 Be5 Nd6 d1B+ Kd3 Qf8 Nf7 Rf2 Rh3 Rc8 a8N Rc7 Qd2 Rc2 Nb6 Re2 Rg3 Bf2 Rh3 g1N Nbc4 Qfe8 Rh5 Nh3 Ng2 Ba7 Nge1 Rg2 Na3 Rh2 Nd4 f3 Ke3 f2 Rg5 f1B Rg8 Bfc4 Rf8 Rg8 h8N Rg5 Qg2 Nf2 Rg8 Bab8 Ndf3 Rgh5 Bd2 Qf8 Bc3 Ba7+ Bd4 Ndc6 Qg3 Qa8 Rb8 Nd8 Rb1 Ra2 Rb2 Be4 Qh3 Bh7 Qg3 Bg8 Qg2 Ne4 Qh3 Rc2 Qh2 Nd2 Kf2 Ne4+ Kg1 Nf2 Bc5 Bg3 Bf8 Bf4 Bg7+
1Rnq4/p5BK/2b5/BR1BnrB1/2qqN1b1/2p1bR2/n2Q2n1/nrkB3N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Ke6 Ke4 h5 g4 c5 d4 f5+ Kf3 Kd5 b4 h3 e3 c3 g5 h4 g6 a3 g7 c4 b5 c2 b6 h2 b7 a2 Bb2 c1N Nh3 c3 Qe2 Nd7 b8B Ne7 g8R Bh6 Be5 Rb8 Nf2 h3 Qd2 Rb5 Rhg1 h1B+ Bg2 Kc4 e4 Kb3 d5 h2 d6 Rb4 Re8 Rf8 Bg7 Bg5 e5 Rb7 Qe3 Kc2 Nd2 Rb6 Rb1 a1N e6 Na2 Nde4 Ne5+ Ke2 Bd7 Rgf1 Nc8 e7 Bc6 d7 f3+ Ke1 f4 Bc1 Rb8 Rb5 Rf5 Rf8 Rb7 e8B Rb6 Bh5 Bh6 Nd3 f2+ Ke2 Rb7 Bd2 Bg5 Rfb1 f1N Ndf2 Rb6 Qd4 Ne3 Bgf3 Bg2 Nh1 Bh3 Bf7 Rb7 Bd5 Ng2 Bg4 f3+ Kf2 Qb6 Kg3 f2 d8B f1Q Be2 Bh6 B2g5 Bg4 Rf7 Qc5 Ba5 Qb4 Qf2 Qd4 R1b3 Qfd1 Qf4 Q1d2 Bd1+ Kc1 Qe3 Rd7 Rb8 Rb7 Rb5 Qc4 Rc5 Rb1 Rcb5 Nf4 Qf2 Qe3+ Kh4 Qed4 Nhg3 h1Q+ Qh2 Qg2 Nh1 Qgd2 Rf8 Bh3 Rf7 Ng2+ Kh5 Nd3 Kg6 Ne5+ Kh7 Bg4 Be7 Be3 Bg5 Rf1 Rf3 Q2d3 Rh3 Rf5 Rf3 Qd2 Bg8 Qd8 Bd5 Qdd3 Qf4 Qdd4 Qh2 Ne1 Qe2 Ng2 Qd2+
1nQ2q1R/qb2r1k1/1qRbN3/brn2RrR/1BKR1n2/2pp1b1N/8/NB6 b - - 0 1 illegal: No proof kernel
1R1NR1K1/NR2B3/1r4b1/bq1pN3/n1N1rQqk/pq4bn/4n1Bn/5N1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 h5 e4 f5 c4 a5 g4 d5 b4 d3 b5 h3 b6 a3 c5 d2 b7 a4 c6 h4 c7 a2 Bb5 f3 Bd7 f2 Ke6 f1N Kf7 f4 e5 f3 e6 h2 e7 f2 e8N a3 Bb2 h3 Qc2 d1Q Qd2+ Kh4 g5 Bb4 g6 Ra6 g7 Qg5 Qe3 Ba5 Qd3 Ng3 Be6 f1Q+ Qf3 Ne2 Qf4+ Qg4 Nd2 Rb6 Rb1 a1B Nd6 Nd7 b8N Nc5 N6c4 Qb3 Nc6 Nf6 g8R Na4 Nd8 Bd7 c8N Be8+ Kf8 Bg6 Na7 Rh6 Bc1 Be5 Kg7 Bc7 Re8 Rh7+ Kf8 Re7 Bc8 Re4 Ngf3+ Kh5 Nfe5 Kh4 Rg1 h1N Be6 h2 Bb2 Qfh3 Nf1 Qb5 Bc3 Nf2 Bb4 h1R Be7 Qhb3 Rg3 Qc2 Rgb3 Nh3 Rb4 Qb3 Bf5 Rd4 Be4 Bd6 Bf3 Re4 Kg7 Bc5 Kh8 Bf2 Bg2 Bg3 Qd2 Qg5 Qf4+ Ng4 Kg8 Qd1 R1b2 Qb3 Qc1 Nh2 Qd2 Rf6 Qf4+ Qg4 Rb1 Qc6 Rb6 Qcb5 Rb8 Qc6 Bb4 Qd1 Bc3 Qb6 Rb5 Qb3 Bb4 Qc6 R5b6 Qb5 R6b7 Rb6 Be7+
RNq5/RnrnK1kp/rR5b/N3N1r1/1nB2Np1/2q1Bb2/n1qbQ2N/8 b - - 0 1 illegal: No proof kernel
b2B4/k4K1p/b4n1b/2rRRn1Q/1R4Br/n5Np/qB3rB1/N2rr1Br b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 c5 f4 e5+ Kh5 c3 g4 c2 a4 e3 d4 h3 g5 e2 d5 c4 g6 b3 g7 c3 f5 e4 d6 e3 f6 b2 f7 Nd7 Qd2 Ne7 g8R Bh6 Re8 Rf8 Na3 b1B Bg2 e1N Qd3 e2 Qg6 Ka6 a5 b5 Be3 c1R Nc2 b4 Ra4 b3 Na1 b2 Re4 Kb7 a6+ Kb8 Rh4 Be4 a7+ Kb7 Kg4 b1R Qh5 c2 Bf2 Rb8 a8B+ Ka6 Bd5 R8b4 Be6 Qa5 Bd4 Qd5 Bb2 Ka7 Rd8 Qa2 Bf5 Re8 f8B Ba6 Bfg7 Rf8 Bgd4+ Nb6 d7 Ba8 Re8 Rc4 d8B Rc5 Ba3 Rb4 Bb2 Nbd5 Bc8 Rb1 Bd7 c1R Be6 Bg7 Kg5 Nc2 Rg4 Na3 Bd7 Nc8 Re5 Nd6 Rge4 Rf4 Bf5 Rh4 Bg4 Nf5 Bf2 Rb3 Rb4 Rf3 Be3 Nc3 Bd4 Bh6+ Kf6 Nd5+ Kf7 Nf6+ Rd5 Rcf1 Bf2 Rbd1 Be3 e1R Ne2 Rg1 Ng3 Re2 Bf1 Rh2 Bg2 Rgf1 Rg1 Rh1 Bf2 Rf4 Bfd4 Re4 Be3 Rf3 Re1 Re5 Bg1 Rf2 Re2 Re3 Rc2 Ree1 Re2 Bc8 Re3 Ba6 Re5
kn6/3nr1NQ/BN1bR3/1bb1np2/3Bb1NB/1rBRBnbK/3qp3/7n b - - 0 1 illegal: No proof kernel
N1Br2br/q5R1/NrR3K1/Rb3n2/b5Q1/4nN1p/1RnBpb1R/r4r1k b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 Kg4 c5 Kg3 a5 b5 f5 h5 c6 e5 c7 d5 a6 e3 Kd3 e2 f6 e1R a7 b3 f7 b4 Bd2 b2 Bg5 h3 Bh6 h2 Nf3 h4 Qd2 b3 Ng1 h3 Qd1 e4+ Kd2 e3+ Kd3 e2 Be3 Ne7 Nd2 b1R Ra4 b2 Ra2 Qd7 Qa4 Nbc6 Ngf3 Ra1 Nb3 b1R Bd2 Nf5 Rg1 h1B Nc5 Rb6 Na6 Bc5 f8R Qg7 Qc4 Be6 c8R Bg8 Rb2 Rab8 a8N Qa7 Rc7 Rd8 Rff7 Kf2 g4 Rec1 Bg2 Rf1 g5 Kg3 Ne5 Kh2 Be4 Bf3 Rg2+ Kh1 Rg7 Bh5 Qa4 Be8 g6 Bd7 Nf3 Be8 Kc2 d3+ Kc3 Nb4 Rc6 Nc2 Qd4 Nfe3 Bf5 Bd7 Be6 Nf5 Qg4 Be8 Bc8 Bf2 Be1 d2 Kd3 d1B Bd2 d4 Ke4 d3 Kf4 Nb4 Kg5 Ba4 Kf6 Nc2 Kg5 Qb8 Ra7 Bd7 g7 Qc7 Kg6 Qb7 Bb4 d2 Bc3 d1N Bd2 Ba2 g8R Nde3 Rg7 Bg8 Nb8 Bb5 Ra5 Qa7 Na6 Ba4 Rd6 Bdb5 Re6 Bc4 Rc6 Bcb5 Rh2#
1BBrn1qB/1bb1rp2/2R2rR1/7K/5k1n/npr3Qb/R2n4/2RnN1RN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Ke5 h4 b5 c4 d5 c5 g5 c6 g3+ Kf3 b3 c7 g4+ Kg2 b2 a5 d3 a6 d4 a7 b4 h5 b3 h6 d2 h7 d3 Nc3 b1N Qe2 d1R Ra3 d2 Na2 Re1 Qf3 d1N Rh6 Nd7 Ba6 Ngf6 Nc3 Bb7 c8R Bd6 Bd2 Nc5 Ra2 Qg8 Rc6 Rd8 a8R Ne8 Nce2 Na3 Rac8 Bc7 Rhg6 Rd3 Ba5 Rc3 Bb6 Rf1 Ba7 Re1 Qf2 Rf1 Bb8 f3+ Kh1 g2+ Kh2 g3+ Kh3 Re1 Kg4 Rf1 Qe3 f2 Kh5 Re1 Qf3 f1B Qd3 Ne6 Qe3 Nd4 Qg5+ Nf5 Qh4 Qg7 Qg4 Rg8 h8B Nh4 Qh3 Rf3 Qh2 Rf6 Qh3 Rf8 Rc1 Qg8 Nf3+ Kd6 Qg4 g1R e5+ Kd5 e6 g2 Qg5+ Ke4 e7 Rh1 Qg3 g1N Rc6 Bh3 Rc1 Be5 R8c6 Bc7 Qf2 Rh2 Ng3+ Kf4 Nh1 Re3 Qg2 Rc3 Ne1 Ngf3 Qg1 Re2 Qf2 Nd6 e8R Re7 Rd8 Ne8 Qg3+ Ke3 Rdd2 Ke4 Rg2 Nd2 Qd3+ Kf4 Rg1 Ba8 Bc8 Bb7 Rac2 Nd6 Rb2 Rd8 Ra2 Ne8 Qg3+
1q6/5bn1/3Brq2/K1b2b1n/B2n1rB1/1bpk1pNN/2Nr2rB/Q1R2RB1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 e4 Kf6 d4 b5 Kd2 g5 h4 c5 a5 b3 Kc3 b2 d5 Ke5 h5 f5 a6 f3 h6 f2 d6 g3 h7 g4 a7 f4 d7 g2 Qe1 f3 Ra3 g3 Be3 b4+ Kc2 b3+ Kc3 Nc6 Qd2 Nd4 Rh2 Ne7 Rh5+ Nef5 Rg5 Qf6 d8B Be6 Qc2 Bf7 Bb6 Re8 a8N Re6 Ne2 g1Q Qc1 g2 Ra1 Qh2 Na3 g1R Nc7 b1B Bh3 f1N Ng3 b2 Nc2 Rg2 Bg1 Ba2 Nd5 b1B Bg4 Bb3 Nf4 Bd6 Nh3 Rf8 Rg8 Ng7 h8B Be7 Bc7+ Bd6 Kb2 c3+ Ka3 Rd8 Qb2 Rd7 Rc8 c4+ Nb4 c2 Qc1 B3a2 Ka4 Bb3+ Ka5 Rd8 Qa3 c1R Nc2 Rd1 Bb8 Rdd2 Rc7 Bc5 Qa2 Kd6 e5+ Kd5 Rc8 Rf8 Bd6 Ne3 Rc7 Nh5 Qb2 Nef5 Bg7 B1a2 Rf1 Bb1 Bh6 Nfg7 Bf4 Rdf2 Qa1 Rd2 Nh1 Ke4 Ng3+ Kd3 Rc6 Re7 e6 Ree8 e7 c3 Ra6 Rb8 e8B Rb6 Ba4 Rc6 Bde5 Re6 Bd6 Kc4 Ne1 Bf5 Nc2 Kd3 Rb6 Ba2 Rbb1 Bb3 Ne2 Qg3 Rbc1 Qh2 Bfe3 Qhe5 Bh2 Qf4 Ng3 Q4e5 Be7 Qb8 Bd6 Rh8 Qa2 Nf4 Beg1 Rh4 Qa3 Nfh5 Qa1 Be4 Bf5 Rf4 Bg4 Bh7 Be8 Bf5 Ba4
N1qk1B2/1BR4B/1nBb4/3B3q/b2rRpp1/1RN5/2Qqqr2/1Kbb1rn1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 g5 c4 b5 Kc2 b3+ Kb2 b4 a4 f3 e5 g3 e6 f2 c5 f4 h5 g4 h6 g2 c6 d3 a5 d2 e7 d4 h7 d3 c7 Nd7 a6 Ngf6 a7 Nb6 Rh2 Ne4 Qe2 d1B Rh6 d2 Rg6 Ng5 Nf3 g1B Re6 Bd7 c8B Ba4 Nh2 Nf3 Bb7 Qc8 Ra3 Rg8 Bg2 f1Q h8R Be3 Re4 Ng1 Rh7 Qe1 Qc4 Qe2 Nc3 Rb8 Kb1 b2 a8B Kd7 e8B+ Kd8 Qc6 Bd6 Nf3 Rg7 Rb3 Rd7 Ka2 b1R Ba3 Rc1 Nd4 Rc2+ Rb2 b3+ Ka1 Rc1+ Rb1 Rc2 Bg6 b2+ Ka2 Rc1 Qc4 Rc2 Bd5 Rbb7 Ndb5 Rbc7 Qb3 Rc4 Bac6 Rd4 Nc7 Rc1 Rh2 Rh7 Rh1 Rh2 Bf3 Rf2 Na8 Rc4 Qc2 Rd4 Ra1 Rb1 Bh7 Rc1 Rh3 Rb1 Bb4 Rc1 Bc5 b1Q+ Ka3 Qb4+ Ka2 Qbb5 Rb1 Qa5 Rb3 Qab5 Bb7 Qe8 Rh6 Qh5 Rg6 Rb1 Rg7 Bb8 Qc1 Bc2 Bdc6 d1Q Re5 Qdd3 Bf8 Bd6 Bfd5 Bd2 Qb2 Rbf1 Rc7 Bd1 Qc2 Bc1 Kb1 Qdd2 Re4
1R1R2nB/4b1b1/3bqN1N/RB3rrq/bknp2r1/3K1R1p/1Nr1R3/6nQ b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc6 g4 Kc5 f5 b5 f6 e5 a5 e3 f7 b3 g5 b4 a6 h3 g6 b2 g7 b3 a7 e4 Nf3 h4 Qe1 d3+ Kd1 d4 Ra3 d2 Ke2 d1N Qg3 h2 Nbd2 b1R Rg1 h1Q Qe1 b2 Bh3 Qe8 Bg4 Nf2 Rc3 Nh3 Ra3 Qe6 Rb3 Nd7 Qf2 Rh5 Rb8 Rg5 Qf1 Ne5 Rg2 Bd7 Ne1 Ba4 Qf3 Be7 f8R Bf6 Rbd8 Kb4 c5 Nc4 c6 Rc8 a8R Ra1 c7 b1R Ra5 Ng1+ Kf1 Ra2 Re2 Rc2 Bh3 Rb8 c8R Rbb5 Rb8 Qh2 Bg4 h3 Bf5 Qhe5 Qh1 Rg4 Bg6 Qh5 Be8 Be7 Rf3 Rbb2 Rbc8 Rf5 Bb5 Bf8 Rb8 Ra2 Rg2 e2+ Kf2 Nh6 g8N Bg7 Nb1 Ra1 Nc3 Rgg5 Bf4 Rd1 Nf6 Ng8 Be5 Rdc1 Ng4 e3+ Kg3 Ra1 Ne4 Raa2 Rgf2 Ra1 Nf6 Rac1 Ng2 e1B Nf4 Bd2 Rg2 e2 Kf2 e1B+ Kf1 Ra1 Nh6 Rg4 Re2 Bh4+ Re1 Bc1 Re2 Bg5 Kf2 Ba3 Nd3+ Kb3 Ra6 Bd6 Nb2+ Kb4 Ra5 Ra2 Nh7 Bge7 Nf6 Ne3 Ke1 Rc5 Kd2 Nc4+ Kd3 Rfg5 Nd1 Rc2 Nb2 Rd5 Nd7 Rc5 Bf6 Rcf5 Be5 Bgf8 Bh8 Bg7 Nf6
1B1Rr1k1/4B3/1qrb1bbq/6r1/1p5N/RRpB3r/1Nq2Q2/2qnBKnB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 g5 e4 b5 d4 f5 h4 Kf7 d5 c5 d6 f3 h5 f2+ Ke2 f4 e5 g3 a5 c3 a6 g4 a7 c4 d7 g2 h6 f3+ Ke3 b3 h7 c2 Rh2 b4 Rh6 g3 Qd2 c3 Raa6 b2 Ra4 Nf6 Bc4+ Nd5+ Kd3 f1Q+ Ne2 g1R Rh3 g2 Ra3 f2 Rh1 Qb6 d8B Nc6 Be7 Nd4 e6+ Kg7 Qe1 Nf3 Nd2 b1Q Ba6 Qa2 Nc4 Ne3 Nb2 Nd1 Bd2 c1Q Rh2 Rb8 a8B Bd7 Rb3 Be8 Rh5 Rc8 Ra5 Rc6 Raa3 Rh1 B8b7 g1B Bb5 Qg2 Ng3 f1R Qf2 Bg6+ Ke2 Rh3 Bd3 Qh1 Be1 Bh2 Ba8 Rg1 Bb7 Rg8 h8B+ Kh7 Nf5 Bg7 Ba8 Bf6 Nh4 Rg5 Bb7 Ng1+ Kf1 Bd6 Bg7 Bd4 Be5 Re8 Bf4 Kg8 Bg3 B6c5 Bb8 Bd6 Ba8 Bf6 Bb7 Rc4 Bg2 Qh2 Bh1 Rcc8 Bd8 Rc6 e7 Rf8 e8R Qab1 Bhe4 Qbc2 Be7 Qhf4 Rd8 Re8 Nf5 Qh4 Bh1 Qh6 Nh4
1rNN3q/2k1n1R1/rp1Q1B2/1n1Rb1nN/2bN3N/pn2q3/r3rq2/1KB2B2 b - - 0 1 illegal: No proof kernel
2QR2nq/q2pBrqq/R6b/3N2n1/NnB3bp/4BN1N/3rN3/3knK1b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 a4 Kf6 c4 Kf5 g3 h5 a5 b5 a6 e5 a7 d3 c5 d2+ Kf2 h3 c6 e3+ Ke2 Ke4 c7 h2 f5 h4 g4 b3 g5 b4 g6 b2 f6 b3 f7 Bh6 f8B Bb7 c8N Nc6 g7 Rh7 Nh3 Nb4 Na3 b1Q Bd6 b2 Rg1 h1B Ne7 Qa2 Rg5 b1Q Qb3 d1N+ Bb2 Nf2 Nb5 Qd3+ Ke1 Kf3 Bc1 e2 Ng6 e4 Ngf4 Rb8 a8N Qa7 Ra6 Rc8 Rg1 Rc2 Qb2 Rd2 Qc2 Bd5 Nb6 Be6 Rg2 Bg4 Nd4+ Ke3 Be7 Qdb8 Ng5 Nh3 Ngf3 Ng5 Qc8 Qb1 Nh3 Kd3 Kf2 e3+ Kg1 Qe5 Na4 Qf6 Nc6 Kc2 Ncd4+ Kd1 Rg3 e1N Bc4 e2 Rg2 Rb2 Be3 Rd2 Rf2 Ned3 Rf1+ e1Q Ne2 Kc2 Bd8 Ne7 g8N Qh8 Nf6 Ng8 Be7 Qa1 Nd5 Qeb1 Ne1+ Kd1 Rf8 Rf7 Re8 Qag7 Nf3 Ne1 Rd8 Qbh7 Kf1
1B2br2/1b6/rq1r1b1R/2N1pkQ1/brpnR3/1B5r/RR3nK1/N1Rr3N b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 g4 Kg6 a4 b5 f4 e5 Kf2 h5 d5 c5 a5 c3 a6 h3 g5 c4 d6 h2 d7 e3+ Kg3 c2 a7 b3 Qd5 h4+ Kg2 b4 Bd2 c1R Qf3 e2 Qg4 e1R Be2 b2 Bd1 b3 Ne2 Nh6 Ng3 Nc6 Ba5 Bg7 Nd2 b1B Bc7 b2 Bb3 Red1 Bb8 Qb6 d8N Bf6 Ne6 Rf8 Nc5 Nd4 Ra2 Bc2 f5+ Kh7 Rg1 b1R Rb2 Bd7 Nh1 Be8 g6+ Kg7 Qf4 Ng4 Qg5 Nf2 Re1 Qe6 Re4 Qb6 Bd6 Rd8 Bb8 Rd6 a8R Ra1 Raa2 Rcb1 Qg4 Kh6 g7 Kh7 g8R h3+ Kg3 Kh6 Qf4+ Kh7 Rh8+ Kg7 Rh6 Kf7 Ra8 Ra6 Qg5 Ke7 Ba2 Bca4 Ndb3 Kf7 Na1 Ke7 Rd2 Rb4 Bb3 Kf7 Rb2 Nd3 Nf2 h1B Kh2 Bg2 Nh1 Nf2 Kg3 h2 Ra7+ Be7 f6 Bf3 Re3 Bd5 Re4 Bb7 Kg2 Bd8 Nd3 Ke6 f7+ Bf6 Ra8 Rh8 f8R Rg8 Rf7 Rf8 Nc5+ Kd5 Ng3 h1R Ra7 Rh3 Nh1 Bd8 Rf3 Be7 Rc3 Bf6 Nd7 Ke6 Rc1 Qc5 Qd2 Qc6 Nc5+ Kf5 Ra8 Rab6 Ra5 Ra6 Qe3 Qb6 Qd2 Bad7 Raa2 Ba4 Qg5+
nKnN1krn/R2BBrb1/p1r1p3/1pN4N/q1R2r2/B7/2bBr1b1/5Q1B b - - 0 1 illegal: No proof kernel
b6R/q1rn1Bn1/3bbN2/2N1r1Nr/k3b3/2BBBBq1/pb2Rp1p/4QK2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 h5 e4 f5 b4 d5 g4 Kd7 g5 Kc6 e5 a5 c5 a3 e6 a2 g6 h3 e7 h4 e8B+ Qd7 g7 d3 Na3 h2 Bd2 d4 Bg6 f3 Bh3 f2+ Kf1 a4 Bh5 f4 Qb3 Ra7 Nc2 Kb5 c6 a3 c7 Nh6 g8B Nf5 B3g4 h3 Qf7 Bd6 Bg6 Rh5 Bd1 Ng7 Qe6 Ka4 Bc1 d2 b5 d3 Bg4 d1B b6 d2 b7 Bf3 Qe1 d1R Nd4 Be4 Nb3 Rdd5 Be3 Rde5 Nf3 Qf7 B8h7 Be6 c8N Nd7 b8B Rc7 Ng5 Ba8 Rc1 a1B Bf3 a2 Ne7 Bb2 Rc2 Be4 Nd5 Qg8 Rg1 h1B Re2 h2 Nf6 Ba8 Bba7 Qb8 Bad4 Qa7 Bf7 Be4 Bg4 Ba8 Bc3 Bhd5 Bf3 Be4 Kg2 f1Q+ Kh1 Qh3 Nc5+ Ka3 Rg4 Qg3 Rh4 Beb7 Bd3 Be4 Bg2 f3 Rh3 f2 Bf3 Qh4 Kg2 Qg3+ Kf1 Rh6 Na6 Ka4 Rh5 Rg6 Rh7 Rh6 Rh8 Rh5 Nc5+
1K3n1r/1b2R1rB/3p1q2/b2R2pq/qnq2N1k/pNBN3q/3B2NQ/1N4n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kb5 f5 e4 a5 c4 a3 h4+ Kh5 b4 g5 c5 f3 c6 a2 e5 f2 c7 f4 Kb6 d3 e6 a4 e7 d2 e8N d6 b5 a3 Ng7+ Kg6 h5+ Kf6 h6 g3 h7 g2 Qe2 d1Q Nh3 g1N Ne6 f3 Nhf4 Na6 Nd3 Bg7 Nef4 Bb7 Ng2 Qe8 c8N Kg6 Bd2 Nb4 Kc7 Rb8 Nb6 Qa4 Nd5 Nf6 b6 Nd7 N5f4+ Kf5 Rh6 Kg4 Re6 Qh5 Re7 Rbg8 Qe5 Nf8 Kb8 Kg3 Be2 f1Q Bd1 f2 Bc2 Bc8 b7 Qc1 Qe2 Bc3 Qe5 Rg7 Qe2 Rhg8 h8B f1Q Qe5 Nd5 Qe2 Ba5 Qe5 Nb4 Qe2 Rg6 Bhc3 Rh8 Qe5 Rg7 Qe2 Qh6 Qh5 Qe2 Qh2+ Kg4 Ka7 Qhe6 b8N Bb7 Nd7 Qc4 Kb8 Qcf1 N7c5 Qff3 Nc1 Qh3 Bh7 Qef3 N5d3 Qh5 Qh1 Qfh3 Nb3 Kg3 Qh2+ Kg4 Nge1 Kh4 Bd4 Bc6 Nc3 Rhg8 Neg2+ Kg4 B2e3 Nf3 Ndc5 Ng1 Rd1 a1Q Nb1 Rh8 Bb2 Ba8 Rd5 Bb7 Bf6 Qe5 Ncd3 Qe6 Bc3 Qf6 Nge1 Kh4 Bc1 Qcb5 B1d2 Qc4 Neg2+
2RNKRn1/5R1p/7R/3pBq2/Qr1k2q1/q1bB1b1p/1rb3b1/N2nRb1B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Nf6 Kd3 Ke7 Kc4 Kd6 Kb5 Kd5 g4 f3 a4 b3 g5 h3 c3 d3 a5 b2 g6 d2 e3 f2 g7 Na6 g8R Bg7 Nf3 Qf8 Nd4 Nc5 a6 Nd3 a7 Rb8 Na3 b1B a8B Nb2 Nc6 d6 Nc2 Bg4 Ra6 b6 Qe1 d1Q Na1 Qf3 Bd2 Nd1 c4+ Ke4 Be2 f1Q c5 Bc2 Bc3 Qg3 Kb4 b5 Ra7 Qgg2 Qh4 Qe7 Ka5 b4 Bc4 Qd3 Re1 b3 Rb7 b2 Kb6 Qe5 Kc7 Qge2 Bd4 Qa3 Re8 Qf3 Re6 Qe2 Ra7 Rb6 Bb5 Rhb8 Nd8+ R6b7+ Kc6 Ng8 Rh6 f5 Ba6 Rb3 Kd7+ Qd5 c6 f4+ Re6+ Be5 c7 f3 c8R f2 Bc4 f1B Bd3+ Kf3 e4 R3b5 Bc5 Bc3 e5 Rb3 Bb4 Ke3 Ba5 Qe4 Bc7 Qf5 Bh1 d5 Rb7 Bh5 Qa4 Bg2 Ra7 R8b4 Bd6 Kd4 Bc7 Qf4 Rh6 Qf5+ e6 Qee4 Bg3 Bhf3 Rac7 Qeg4 Rb7 Nf6+ Ke7 Bf1 Kf8 B3g2 e7 Bf3 e8R Ng8+ Rf7 B1g2 Bc4 Bd3 Bd6 Bdf1 Bd3 b1B Bb8 Rb2 Bc7 Nf6 Ke7 Bc2 Ref8 Ng8+ Ke8 Bb1 Bb8 Bc2 Be5+
N1n2bB1/Br3n2/R4q1R/b1r1kBqp/4RqQ1/1p1B1n1n/N6p/3b1K1B b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Kf6 c4 e5 a4 b5 c5 h5 c6 d5 a5 e3 c7 e4 a6 e2 f5 b3 a7 d3 g5+ Ke5 f6 h3 f7 b4 g6 d2+ Kf2 e1N g7 h2 Bb5 d4 Qc2 d1N+ Kf1 b2 Be3 d3 Be8 b3 Ra2 d2 Bc5 e3 Ra5 Nf2 Ra6 d1Q Na3 b1Q Ne2 Qf6 Qd2 Nd7 Nc1 Qdf3 Qb4 Qbf5 Na2 Rb8 a8B Nb6 Qg4 Nh6 g8B Q5g5 Bb5 Q3f4 Bd3 Rb7 Nb5 Nf3 Rg1 Bd7 c8B Nh3 Nc7 Bb5 Bd7 Nc8 Bf5 Bc6 Ba7 e2+ Kg2 e1B Kf1 Bb5 Rg2 Bc6 Re2+ Be4 Re3 Ba5 Re1 Rh7 Re2 Rb5 Bc6 Rc5 Na8 Bg7 f8R Nf7 Rd8 Bf8 Rd6 Rg7 Re1 Rh7 Be2 Bc2 Bed3+ Qe3 Bce4 Qef4 Re2 Bd1 Rdb6 Qd8 Rh6 Qdf6 Rf2 Nfg1 Bh1 Nf3 Rg2 Nh8 Rc2 Rb7 Rc4 Nf7 Re4+
4BBB1/1Q1N1B1K/nq6/k2p1R1p/1qNbqnn1/1B1N4/Rp6/2rbnr1b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 h5 Ke4 f5+ Ke5 b3 a4 b4 g4 b2 e4 b3 c4 d3 c5 f3 a5 f4 Kf5 d2 Kg6 f2 a6 h3 g5 f3 c6 h2 c7 Ne7+ Kf6 Nd5+ Kg6 Bg7 a7 Bd4 e5 Nf4+ Kg7 Bb7 c8B Rf8 g6 Qb6 Kh7 Kd8 g7 Kc7 g8B Na6 Bfc4 f1N e6 f2 e7 Ne3 e8B f1N Na3 Neg2 Nh3 Nfe3 Qf3 d1B Nf2 b1Q+ Nd3 Ne1 Bcf7 Ng4 Rf1 h1Q Ra2 b2 Bd2 Qh4 Bb4 d6 Bce6 Rc8 Qd5 Qe7 Qb3 Bh1 a8N+ Kb7 Bc4 d5 Bd6 Qh4 Qb5 Qe7 Bb3 Rc1 Qc6+ Ka7 Rf3 Qeb7 Qc8 Qb4 Nb6 Qc2 Nd7 Q7b6 Be6 Rf5 Bf8 Qe2 B6f7 Qe4 Qc5 Kb7 Qe7 Kc6 Nc4 Kb5 Na3+ Ka5 Rf1 Nfg2 Rf4 Rf6+ Rf5 Nf4 Nb8 Rfc6 Qb7 R6c2 Nd7 Rf2 Qa8 Rf3 Qb7 Rf1 Nc4+
Nb3RN1/1rn3r1/2n1b2q/1BpN3r/K3kB2/2pp1R2/2n1Q1Nr/1bN2B1q b - - 0 1 illegal: No proof kernel
1NbQ4/bRn2K2/1q1rRN2/RpB1k3/1p1q2b1/1R1npR1q/bB1nB3/4r3 b - - 0 1 illegal: No possible last move
Q1Nn2b1/3k2q1/R2r1p1B/n1BB1Kn1/Brb1ppB1/qR1N1nr1/2R5/4b3 b - - 0 1 illegal: No proof kernel
B2K3b/B2Qr1qN/2rpN3/1N2q3/b1n2Br1/1R1n1RqB/B3pp1r/2bk4 b - - 0 1 illegal: No proof kernel
kq1RrR2/R1bK1nb1/1BN1p2n/5bnn/pR3n2/8/p3BQrB/2n2RN1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 h5 b4 a5 g4 d5 c4 Kd7 f4 Kc7 f5 Kb7 f6 a3 f7 h3 c5 h2 b5 d3 Ke3 d2 Kf4 a2 Ke5 a4 b6 e3 g5 d4 g6 e2 g7 e1B Bb5 h4 Bb2 d3 Be8 h3 Na3 Bg3+ Ke4 Nc6 Rc1 Ne5 Qe2 d1N Rc2 d2 Qf2 Ne3 Nb5 d1N Rc1 Nh6 g8R Ng2 Rg7 Rg8 Nd4 Nf4 c6+ Kb8 Rh7 Bg7 f8R Nef7 b7 Bg4 Ra1 e6 c7+ Ka7 Bc1 Qb8 c8R Nb2 Rd8 Nbd3 Be3 Nc1 Rb1 Bf5+ Kf3 Nh5 Bb5 Bc7 Rb4 Nf4 Bc4 Bge5 Bf1 Rg2 Be2 Bg7 Rd5 Qe8 Rd8 Rc8 b8B+ Ka8 Bd1 Qb5 Be2 Qb7+ Nc6 Qa7 Rd1 Re8 Bb6 Qb7 Ke3 Qa7 Rd8 Qb7 Nf3 Qa7 Rhd1 h1N Ng1 h2 Rf1 Ng3 Kf3 h1N Ke3 Ne5 Kd4 Ngh5 Kc5 N1g3 Kb5 Bf6 Re7 Nef7 Red7 Ne4 Re7 Bce5 Rb7 Neg5 Kc5 Bg7 Kb5 Bc3 B8c7+ Qb8 Kc5 Ne5 Kd6 Nef7+ Kd7 Bge5 Rb2 Ba5 Rb4 Bg7 Bd6 Nd5 Bh2 Ndf4 Ba7 Bc7 Bd4 Bd3 Bb6 Bf5 Ra7#
1R1b1R1R/krrr2BN/1B5b/1b2K2n/R3p2R/4pp2/N1B1n3/1nrQqn2 b - - 0 1 illegal: No proof kernel
1Kb1q1Rb/N4qN1/1nr1qR1r/nbqp4/3Q2N1/k2p1p1B/3b4/BBN3N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 Kg3 f2 a6 f4+ Kg2 f3+ Kg3 b3 h7 Kb4 a7 b2 c5 Bh6 e5 Nd7 e6 Nb6 e7 Qe8 Nc3 b1Q c6 Qbg6 c7 Qgf7 Bh3 f1B Ra6 Bc4 Nce2 d3 Bb2 Rb8 a8B Bg7 Kf2 g3+ Ke3 g2 Ba1 g4 Bc6 g3 Nc1 Bc3 Qf1 Bd2+ Kd4 Ra8 Ke5 Rb8 Nge2 g1B Kd6 Bd4 Qf2 g2 Rg1 Bg7 Qd4 Rb7 Rf1 g1Q Rf2 Qg4 Rg2 Ra7 Ng1 Qgf5 Ra2 Ra6 Rg6 Qe4 Rf6 Qe1 Rb2+ Ka3 Rc2 b4 Ba4 b3 Rc3 Be6 c8N Bb5 Na7 Bc8 Kc7 Qee6 Rc4 b2 Kb8 b1Q Bc2 Qa2 Bb1 Qc2 Rc7 Qc4 Rd7 Qc5 Rd8 Qef8 e8N Ne7 Rh6 Bf6 Ng7 Q8e8 Rg6 Na8 Rd6 Rc6 Rg3 Nb6 Rg4 Rg8 h8N Rf8 Ng6 Rh8 Ne5 Rh6 Nf5 Bh8 Rg8 Ng6 Ng4 Ne5 Ng7 Nec4 Qe5 Na5 Qd4 Qe3 Rg6 Q3e6 Rf6
2N4N/N3NK2/B1BR2p1/Nbbnp1BQ/Rr4n1/bqk4p/p4nr1/2q3q1 b - - 0 1 illegal: No proof kernel
B3QRr1/r2n4/1p4p1/1Bk2p2/rR1R2NK/rb2b1B1/R3p2R/Nqrnb3 b - - 0 1 illegal: No proof kernel
NB1K2n1/Q4r1p/3Npr2/2Bb1B2/nn1b1p1n/4k2n/r2pR1B1/1Rq1BR2 b - - 0 1 illegal: No proof kernel
nbN1r3/5r1k/RbNpp3/4nBpQ/p1B4B/K4N2/4q1nN/N1r1rR1b b - - 0 1 illegal: No possible last move
6b1/r3npbn/p2N2B1/1B2b1k1/1Rr1R3/1p1NbRB1/1nRr1p2/3qQKR1 b - - 0 1 illegal: No proof kernel
7N/2n3qn/qNnKN3/1RQ1B2p/1p1p4/nNR1p2r/1b3R1r/NB1knb2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 c4+ Kc5 a5 b5 a6 d5 g5 b3 f5 Kb4 c5 d3 Ke3 d2 a7 h3 c6 b2 c7 h2 f6 Bh3 c8R Qd6 g6 Qa6 f7 Nc6 g7 Nf6 g8N Bg7 Na3 Kc3 f8N b1N Bd3 b4 Ne7 Bf1 Nc2 Na3 Ra2 h6 Qg4 Nh7 Nf3 Bf6 Rg1 h1Q Neg6 Qg2 Qh5 Rb8 a8N Rb5 Nf4 Qg7 N8g6 Kb3 Rg5 d1N+ Kd2 Ra5 Ne6 Nc3 Ke3 Ncb5 Nb6 Nc7 Na1+ Kc3 Nfd4 Rb5 Kf2 e3+ Kg3 e4 Kf4 e2 Bb2+ Kd2 Bb1 e3 Ndb3+ Kd1 Be5 Rc5 Rf5 Rc2 Qg5 e1N Rb2 Rh2 Rf2 Bd8 Qe7 Rh3 Qc5 Bf6 Rg5 h5 Kf5 Rd8 Nh8 Rd7 Bd6 Bb2 Be5 d4 Ke4 Rf7 Rgf5 Na8 Kd5 Nc7+ Kd6 Rf6 Rc2 Rh2 Rf8 Rg6 Rc3 Rg3 Rf2 Rgh3 Ra8 Qd3 Ra5 Qa6 Rb5
1Nn4b/1q5N/4NR1R/nBRnn3/rkp1p1r1/1bqp1p2/rB3Q2/1K3RR1 b - - 0 1 illegal: No proof kernel
3NnN1K/N2N1b1p/1Q3krr/1qb3q1/8/1pp1nBrr/1n1BN1pR/1R2R3 b - - 0 1 illegal: No possible last move
brnBq3/2B1qk1p/1n2p2p/1NBN2b1/1R3Qr1/1p3R1R/2B2Br1/4K1br b - - 0 1 illegal: No proof kernel
K1R1q2q/p2Rp2r/N2Npb1N/q1kr4/5q2/5N1n/b1pBRnB1/N4Q1r b - - 0 1 legal: proof: e4 d5 c4 dxc4 a4 b5 h4 bxa4 e5 g5 e6 gxh4 Be2 fxe6 Bd3 Kf7 Bf1 Ke8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 c3 g4 c2 f4 h3 f5 h2 g5 a3 f6 c6 g6 h4 f7 a2 b5 h3 g7 Nf6 g8N Nd5 b6 Rh7 b7 Nf4 Na3 Rh5 Bg2 Na6 b8N Nb4 Qf1 Ba6 Nf3 Qe8 Nh6 Bc4 Na6 Nbd3 Nc7 Nf2 d3 Rc8 Bd2 c1Q Nc2 Rd8 Rb1 a1Q+ Rb2 Qa5 Na1 Ba2 Rb7 Re5 Rb2 Bg7 f8R Rb8 Rg1 h1R Rc2 Qf7 Rc8 h2 Rb2 Rb3 Rc2 c5+ Kc4 Re3 d4 Red3 d5 Bc3 Rb2 Qe8 Rc2 N4h3 Rb2 Kd7 d6 Kc6 d7 Rd5 d8N+ Kb6 Nb7 Bf6+ Bc3 Qg5 Nd6 Kc6 Rd2 Qf4+ Rd4 Kb6 Bd2 Kc6 Qc1 Kb6 Re1 Kc6 Re2 Rb4+ Kc3 c4 Qf1 Ra4+ Kc2 c3 Rd3 Bb1+ Kb3 c2 Rd4 Rb4+ Kc3 Rb3+ Kc4 Ba2 Be3 Qe1 Bd2 Re3+ Kb4 Re4 Ka4 Kc5+ Ka5 Ree5 Ka6 Rh5 Kb7 Rh4 Be3 Qa5 Bd2 Rhh5 Ka8 Rh4 Ng8 Rh7 Nh6 Rg1 Rb4 h1Q Rbb8 Qhh2 Rd8 Rh1 Rd7 Qe5 Rbd8 Qhf4 Rc8 Q5h5 Qd1 Qh8 Qf1 Q5e8 Na6+
1r6/RRNB4/1N2KB1b/b4prp/1N2b1bp/5b2/pp1n1nB1/kBQqB3 b - - 0 1 illegal: No proof kernel
2B5/bNK1b2N/1rNR1qp1/3p3k/1pBQr1p1/4B1nb/r2p2nN/Rb2N3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Kg6 h4 d5 f4 e5 a4 b5 c5 d3+ Ke3 b3 h5+ Kh6 f5 b2 f6 b4 c6 Ba6 f7 Nd7 a5 Bc8 c7 Ngf6 a6 Be7 f8N Nb6 a7 Rg8 Nf3 Ba6 Nbd2 b1B c8N g6 Nh7 Rb8 a8B Rb7 Na7 Nc4+ Kf2 e3+ Kg3 e4 Kf4 e2 Ne1 e3 Nc6 Rg7 Ndf3 Ne4 Nh2 Rb6 Bb7 Ng3 Bc8 Bb5 Ra6 Qh8 Nef3 e1R Rg1 e2 Be3 Rg8 Qd2 Qa1 Qb2 d2 Qd4 Re8 Rh1 Rc1 Ne1 Rc2 Rg1 Ra2 Rh1 Na3 Rg1 Nc2 Ke5+ Bg5+ Kd6 Re4 Kc7 Qc3 Nef3 e1B Bc4 Bf2 Ne1 Qa1 Rf1 Bg1 Rf6 Qc3 Rd6 Qb2 Nd3 Ne1 Ra8 Ng2 Ne1 Qc3 Ra7 Rb2 Ra1 Ra2 Bf2 Be7 Be3+ Rf4 Nf8 Kg5 h6 Kh5 h7 Re4 h8N Ba6 Nf7 Qb2 Qd3 Qf6 Nh7 Bf2 Qd4 Bb5 Bb3 Bf1 Nfd8 Nf4 Qc5 Bh3 Nb7 Ng2 Bg5 Rb5 Bc4 Bg1 Qe3 Bf2 Qc3 Ba7 Qd4 Rb6 Be3
1K2b1q1/N3n1p1/NQ2qrpN/1b4kp/8/p4np1/BprB1b1N/2R2NRB b - - 0 1 illegal: No proof kernel
R1b1rnB1/B1p3p1/1NpB1b2/B4n1k/1pK1p3/2Q2rpq/N2R2b1/q1N4B b - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 a5 b4 axb4 c5 h5 c6 hxg4 Ba3 dxc6 Bb2 Nh6 Bc1 Ng8 Ke2 Kf7 d4 Kg6 a4 e5 f4 b5 h4 b3 h5+ Kh6 f5+ e3 Kd3 b2 d5 g3 d6 Qg5 d7 e2 d8B e1Q a5 Rh7 f6 Bb4 a6 Bd2 a7 Ba5 f7 Bb4 f8B Bb7 Qd2 Qd1 Bf6 Qe1 Nc3 Bd6 Bg2 Qf1+ Nge2 Qd1 Rh2 Qe1 Bh1 Bc5 Bd6 b1B+ Qc2 Na6 Be3 Rf8 a8B Bc8 Bb7 Nb8 Ra8 Rh8 Na2 Ba3 Ba7 Bb2 Ba6 Ne7 Rg2 Qg4 Rf2 Qeb4 Nec1 Nd7 Re2 Qh3 Rd2 Kh7 h6 Kg6 h7 Kh5 Rf2 Rf7 Rd2 Re8 h8N Nf8 Ng6 Bd4 Bg2 Qb2 Bh1 Qa1 Nf4+ Kh6 Nd5 b4 Bc4 Kh5 Bb6 Bc3 Ba5 Bb2 Bg5 Rf1 Bb3 Nf5 Be3 Rf4 Ba7 e4+ Kc4 Rf3 Kc5 Bf6 Qc3 Bd3 Nb6 Bf1 Bg8 Bg2 Kc4
N1q1N3/5Nb1/1Rn1R1b1/R1pkb1r1/K3b1rn/N4b2/2B1B3/Qb2Bn2 b - - 0 1 legal: proof: f4 a5 b4 d5 a4 e5 c4 exf4 cxd5 g5 e4 fxe3 h4 b5 axb5 gxh4 Rh2 axb4 Rh3 Qd6 Rh1 Qd8 g4 Kd7 d4 Kd6 g5 h5 b6 f5 b7 c5 g6 h3 g7 e2 Kd2 e1B+ Kc2 h2 Kb3 h4 Ra5 h3 Nf3 f4 Bd2 Qc7 Na3 Bf5 Nh4 f3 Be2 f2 Ka4 f1N Qa1 Nh6 g8B b3 Bh7 Bg3 Be1 Nc6 b8R b2 Rb6 b1B Rg1 Be5 Rg6+ Be6 Rf6 h1B Bc2 h2 Rg6 Rg8 Nf5+ Kd7 d6 Bf7 d5 Qc8 Ng7 Be4 Ne8 h1B Re6 Bhf3 Nb5 Nf5 Na3 Kd8 d7 Bfg7 Rg6 Ke7 d8N Kd7 d6 Nh4 Ne6 Rb8 Rh6 Bfg6 N6c7 Rb7 Na8 Ke6 d7 Kd5 d8N Rf7 Bc3 Rf4 Nf7 Rg4 Be1 Rf8 Nd8 Rf5 Nf7 Rh5 Rh7 Rhg5 Rh6 Bh5 Rf6 Bhg6 Re6
1b1rR3/BNqk4/q3Q3/1NB3b1/pq1nr3/nNr2b2/RKN2R1B/2r4n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 d5 h4 f5 b4 g5 c4 a5 Kc2 a4 e4 f4 b6 g4 c5 f3 e5 f2 b7 f1Q b5 d3+ Kc3 d4+ Kb2 d2 b6 d3 c6 Ne7 e6 Nf5 e7 Nd6 h5 Nc4+ Ka2 Bh6 c7 Bg5 h6 Nc6 b8B Kd7 e8R Bb7 c8N Qc7 h7 Nd4 Rg8 Bf3 b7 Na3 Ne2 g1R Qb3 d1N Rh2 g2 Ba7 d2 b8B g3 Nd6 Nf2 Nb7 d1Q Kb2 Nh1 Ra2 Qde1 Re8 Qb4 Be3 Rg8 Nc1 Qa6 h8N Re1 Bc5 g1R Nf7 g2 Nfd6 Rgf1 Bf2 g1B Nb5 Re4 Bba7 Rd1 Bg3 Rd8 Rf2 Rh8 Bh2 Rh3 Nd3 Rf1 Nd2 Rc1 Ne1 Rg3 Re2 B1e3 Nc2 Bef4 Rg2 Be2 Rf2 Rc3 Na1 Bf3 Nc2 Qba5 Qc4 Qb4+ Nb3 Qcc6 Re2 Bb8 Rf2 Qc7 Qe6+
1Qrrb3/rNr1b1n1/BN6/6pB/2r1RqRB/4N1R1/3bK3/Rkb2n1b b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 g4 h5 f4 hxg4 c3 dxc3 Qa4 exf4 Qb3 Bd6 Qd1 Bf8 h4 Ke7 b4 Kf6 e4 Ke5 b6 d5 b7 a5 h5 f5 h6 g5 b5 g3 h7 c2 b6 g2 Qg4 Kd4 e5 a4 e6 a3 e7 a2 e8B Bd7 Nd2 Kc3 Rh4 f3 Nh3 g1R Rh6 f2+ Ke2 d4 Ba3 c1B Nf3 Kc2 Rf6 f4 Rg6 Na6 b8R Nh6 b7 Be7 Rg8 Qc7 Bc5 Ra7 Rg6 Nb4 Ra8 Nd5 b8N Nf5 Ba3 Nde3 Ra6 Ng7 Bh5 Rc8 h8R Be8 Ra4 Bd2 Qd7 Rg4 Nh4 Qe5 Re1 a1B Nc6 Bb2 Ng2 Bbc1 Bb4 Kb1 Qd8 Rh4 Na5 f3+ Kd3 Qc7 Nb7 Qf4 Ra3 Rc7 Qb8 Rc8 Be2 f1R Rf8 f2 Rf5 Ng4 Ne3 Nh2 Re5 Rh1 Rg1 f1B Rg4 Bg2 Re4 Nf1 Bd6 Rg1 Be5 Bh1 Rc3 Qf7 Nf4 Rg2 Nfd5 Qf4 Nb6 Rg3 Bf3 Rgh3 Ke2 d3+ Kd1 Rh2 Be2 Rc7 Bg6 Rh8 Bh5 Rh4 Bd6 Bf7 Be5 Rhc8 Ra3 Be8 Rc3 Qf2 Bg3 Qf4 Ra3 Ba5 Bf2 d2 Ba6 Bc3 Ke2 d1R Be1 Rdd8 Bg3 Rh3 Bh4 B3d2 Nec4 Rhd3 Rc3 R3d6 Rcg3 Rdc6 Ne3 Rc4 Bb5 Raa4 Ra6 Rab4 Ra3 Ra4 Ra2 Ra8 Ba6 Ra7 Ra1+
1bb5/q3k2Q/3q2qR/B3r3/2bN1KR1/1N2p2B/RNnnN1qr/q1B2b2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 e5 g4 h5 f4 d5 c4 e3+ Kd3 b3 g5 h3 b6 h4 c5 e4+ Ke2 d3+ Ke1 d4 c6 b2 f5 h2 g6 d2+ Ke2 h3 c7 Nc6 b7 Qd6 b8R Nf6 g7 Ke7 Ra5 Nb4 Rab5 Ra5 R5b7 Re5 Rb6 Nc2 Ra6 Qa3 Raa8 Qa7 Rb4 Rh6 Qe1 Rh5 Qh4 Rh8 Na3 b1Q Nc4 Qba1 Na5 Rh5 Bg2 d1B+ Kf1 e2+ Kf2 d3+ Kg3 e1Q+ Kf4 d2 Nb3 e3 Ne2 Rh8 Qh7 Ne4 Ra4 Qg1 g8N+ Ke8 f6 Bd6 Bf1 Qg6 f7+ Kd7 Nh6 Ke7 Ned4 Bf3 Ne2 d1Q Rb4 Nd2 f8B+ Kf6 Ra4 Bd5 Nf5 Bc4 Ra2 Ke6 Nfd4+ Kf6 Rg1 h1B Rg4 h2 Bh3 Bg2 Rb8 h1Q Rb6 Bf1 Rc6 Bd7 c8N Qg2 Nb6 Bc8 Bg7+ Kf7 Na4 Bb8 Nb2 Ke7 Rf6 Nb1 Rfa6 Qdd3 Rf6 Nd2 Rfa6 Qd6 Rc6 Q3g6 Bf6+ Ke8 Bd8 Kf8 Ba5 Ke8 Qh5 Ke7 Qh7+ Qf7+ Qf5 Qa3 Rd6 Rh4 Rh6 Qh7 Qg6 Qd6 Qg8 Qhg6 Qh8 Qg1 Bg2 Rh2 Bh3 Qg2 Qh7+
nn3NKN/q1B2rbB/1q6/b3qr1R/2RBp3/r4Q2/1rRqN2b/4k2N b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Ba6 Be3 axb4 Bc1 b3 Bh3 b4 Bf1 Bb5 axb5 Ra3 Nh3 Ra2 Ng1 Ra8 Kd2 Kf7 f4 Ke6 h4 Kd5 f5 g5 c3 e5 h5 e3+ Kd3 b2 f6 e4+ Ke2 Kc4 f7 d5 h6 b3 b6 g3 b7 g2 h7 g4 Ra2 d3+ Ke1 e2 Kd2 e1B+ Ke3 g3 Kf4 d4 Kf5 Qe8 Kg6 Bg7 Ra6 Ne7+ Kh5 Nd5 Kg6 Nb6 Qe2 Rf8 h8N Qe5 Ra2 Ra3 Kh7 Na8 Nh3 g1Q Qg4 g2 Qf3 Qe3 Bd2 g1B Nf2 Bh2 Bc1 Bd2 Bh3 Be1 Bf5 d2 Bg6 d1Q Bf5 d3 Bg6 Nc6 b8B d2 Bc7 Qa7 Bf5 Qe2 Bg6 d1R Be3 Rd5 Bd4 Nb8 Bf5 Rfd8 f8N R8d7 Kg8 Qd2 Bg6 Rf7 Bh7 Bf4 Rh4 Bh2 Nh1 Rda5 Rh5 Rc5 Qf6 Kd3 c4 Ke2 Qf5 Rb5 c5 Rba5 Qg4+ Kf1 Nc3 b1R c6 b2 Ne2 Qb5 Bc3 Qdg5 Bf6 Qbb6 Bcd8 Rf5 c7 Qb5 c8R Ba5 Bfe7 Ke1 Bc5 Qd2 Bd4 Qe5 Qg2 Ra1 Qg4 b1Q Rc4 Qbb6 Bc7 Rb1 Rac2 Rb2 Qf3
4r1N1/k1NRBR1B/1n4R1/8/1r1r2p1/KQq1rp1B/1n1b1N1N/1bqq1b2 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 d5 e4 Kd7 h4 Kc7 c4 Kb6 Kc2 f5 Kb2 g5 h5 g3 h6 b3 e5 f3 h7 f2 e6 g4 e7 d3 e8N d2 Bd3 f1B Be2 d4 Nc7 f4 Nf3 d3 Nc3 g2 Ra7 g1Q Nh2 f3 Ne4 Nc6 Nf2 Nb4 Ka3 b2 Qb3 d1Q Bg5 b1R Be7 d2 Ra6+ Kb7 b6 Qd3 c5 Bh6 c6+ Kb8 b7 Qc3 Ra7 Nf6 Bd3 Rd8 h8N Bf5 Nf7 Nfd5 Bc2 Bf4 Nh6 Nb6 Ng8 Nd3 Ra6 Nb2 Bd3 Bh3 Bf1 Rd3 Bg2 Re3 Bf1 Qdc2 Bg2 Qgc1 Rd1 N6a4 Rb6 Ka7 b8R Bh6 Rf8 Re8 Rf7 Bf4 Bh1 Bf1 Bg2 Q2d3 Bh3 Qe2 Rb5 Nb6 Rc5 Bh7 Rg5 Qed3 Rg6 Qd8 Re1 d1R Re2 Qdd3 Rd2 Qe2 Rd8 Rd4 Rd7 Qed1 Na8+ Ka6 c7 Ka7 c8B+ Kb8 Rgd6 Re5 Ra7 Bd2 Bf5 Re3 Rad7 Bg6 Nc7 Ka7 Be6 Be4 Bf5 Bc2 Bh7 N2a4+ Ka2 Be4 Qc4 Rb4 Rg6 Nb2 Qb3 Bb1+ Ka3
2R2r2/1R3bn1/2nK4/3Brr1q/1pQ4k/n2NN1BB/bp2NRqr/2n4N b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 b5 Ke4 h5 Ke5 f5 a4 d5 c4 f4 e4 f3 g6 f2 c5 h4 c6 h3 a5 g2 g7 h2 a6 d3 c7 b3 a7 b4 Qe2 b2 Be3 d4 Qd1 d2 Ne2 g1N Ra3 d3 Bg5+ Nf6 g8B g3 Ra1 g2 Nd4 Be6 c8R Rh5 Ne2 Ba2 Nbc3 Qe8 Nc1 Ne2 Qc2 g1Q Bh3 d1B Bd5 d2 Nd3 Qg2 Rf1 Nc1 Ne2 h1R Qc3 Bdb3 Qc4 Rh7 Bh6 d1N Bd2 Nc3 Bf4 Bb1 Ra6 Rh2 Rb6 B1a2 Rb5 Nb1 Rb7+ Kf8+ Kd6 Rh5 e5 Na3 e6 Re5 e7+ Kg7 Rg1 Kg6 Rf1 Qh8 e8N Kh5 Ng7+ Kh4 Nh5 Nc6 Nhg3 Nh5 Nh1 Rb8 a8N Ng7 Nc7 Qh5 Bf3 Ra8 Nd5 Ra5 Ne3 Rac5 Rg1 f1R Bd5 Rf3 Rf1 Rf5 Be4 Rce5 Rf2 Rf8 Qd4 Bf7 Qc4 Rg3 Bf3 Rgg5 Bd5 Rgf5 Bg3+
bq3N2/RbB1qp1R/4N1r1/b1qR3N/3QpBk1/1bB5/r2n3n/4q1RK b - - 0 1 legal: proof: d4 g5 a4 e5 e4 b5 h4 gxh4 f4 exf4 Bc4 c6 Bd5 Qb6 axb5 Qd8 e5 Nh6 Be4 Ng8 d5 cxd5 Ra6 dxe4 Ra3 Ne7 Ra1 Ng8 Kf2 Ke7 b4 Ke6 g4 h5 Kg2 a5 c4 d5 g5 Kf5 c5 d4 b6 a4 e6 h3+ Kh2 a3 c6 f3 e7 f2 e8R f1B g6 h4 b5 d3 g7 a2 c7 d2 b7 Bc4 b6 Nc6 b8B Nd4 b7 Bd5 Qe1 d1B Bd2 Qe7 Qg3 Rh6 Qg2 Nf6 g8R B1b3 Nf3 Rg6 Qf2 Kg4 Rd8 Bh6 Ba5 Bd2 Bc3 Ra3 Kg1 h2+ Kg2 Ra7 Ng5 Nf3 Qd4 Ra3 Ne6 h3+ Kf1 Bc6 Rd5 Be1 Rh8 Qc5 Rh7 Nd2+ Ke2 Ra4 Rf1 h1Q Rg1+ Qg2+ Ke3 Qg3+ Ke2 B8d7 c8N h2 Bf4 h1Q b8B Qh4 Nb6 Bc8 Nd7 Ba8 Bbc7 Bcb7 Ndf8 Ra6 Na3 Qg5 Ng7 Qe5 Nc2 Qee7 Nh5 Ra4 Rd1 a1Q Rb1 Qb2 Rc1 Ra2 Ra1 Nf3 Kf1 Qc1 Rg2 Nd2+ Kg1 Qd1 Kh1 Qe2 Rb1 Qeb5 Rc1 Qbe8 Rd1 Qb8 Ra1 Nf1 Bc1 Ra5 Qd1+ Kh3 Bd4 Ng4 Rg1 Ngh2 B1f4 Ra7 Qd2 Kg4 Bde5 Raa6 Nd4 Ra5 Qe3 Bb4 Nde6 Nd2 Bc3 Ra6 Rgf1 Qe1 Qd4 Ra7 Ra5 Ra6 Rb5 Ra4 Ra5 Ra2 Ra7 Ba5 Rg1+
Kn1n2n1/RB2k3/1NRB4/n1rn4/4nBp1/1qrNq3/N1Bpb3/RQ1r4 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 h5 Bb2 exf6 Ba3 f5 Bc1 f4 g4 hxg4 a3 b5 Be3 b3 Bh3 b4 Bf1 b2 Bd2 b3 Bc1 Bb4+ axb4 Ra7 Ra3 Ra5 Ra1 Ra8 Kd2 f5 Kd3 g5 Kc4 d5+ Kb5 f3 c4 f2 e4 f4 h4 d3 e5 g3 c5 d4 h5 g4 h6 d2 e6 g2 c6 d3 c7 f3 Kb6 Ra5 h7 Ke7 b5 Qe8 Ra3 Ba6 Qc2 d1R Nh3 g1N Ka7 Ne2 b6 Rc5 b7 Nd4 Bg2 f1N Nf2 Ne3 Nc3 b1Q Na2 b2 Ka8 Nd5 Bf4 d2 Nd3 f2 c8R f1N Rc6 Bc4 Ra7 Ng3 Qc1 Qc2 Qb1 Ne4 Rg1 Qb3 Bd6+ Kf6 e7 Ne6 Bf3 Nd8 Bg2 Qf7 e8B Qe7 Bg6 Ke6 Bf3 Qg5 Rf1 Qe3 Bf4+ Ke7 Bg2 Nh6 Bh1 Re8 h8B Ng8 Bhe5 Rf8 Bh2 Rf3 Bef4 Nd7 b8N Rg3 Qc1 b1N Bf5 Na3 Qb1 Ba6 Bg2 Nc4 Bd6+ Kf6 Bf3 Rh3 Bhf4 Na5 Nf2 Ng5 Nc3 Qe8 Na2 Nde7 Qd3 Ra1 Rb6 Bc4 Bb7 Nd5 Qe4 Be2 Rc6 Rhc3 Qh1 Kf7 Bc2 Qe3 Nd3 Ne4 Rc1 Nf8 Nd7 Ke6 Bc7+ Ke7 Nb6 Nd7 Bce5 Nb8 Rg1 Rf1 Bc7 Rf2 Ra1 Rh2 Qd1 Rh1 Qb1 Rd1 Bcd6+
q1q1nB1K/3BB1n1/1N1R2pb/n2qB2k/R2r1rN1/2n5/N2pR1nn/5Q2 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Nd2 Ba6 Nb1 axb4 Bd2 b3 Be3 b4 Bc1 Bb5 axb5 Qc8 Bh3 Qc7 Bf1 Qd8 Kd2 d5 Kd3 f5 e4 Kf7 h4 Kg6 c4 g3 c5 g2 e5 f3 c6 f2 c7 b2 c8R b3 b6 f4 b7 f3 e6 Ra4 e7 Kh5 e8N g6 Bf4 Nc6 b8B Na5 Rh2 Bh6 Qe1 Nf6 Rc7 Qc8 Rd7 Rf8 Nc3 b1N Bbd6 b2 Nge2 g1Q Bfe5 Qh1 Na2 Nc3 Bh3 f1N Be7 f2 Rd6 Ne3 Bd7 Nf5 Qf1 Ng7 Rg2 Nd1 Nec3 b1N Rh2 Rb4 Na4 Nbc3 Nb6 Ne3 Rg2 Nh7 Rh2 Rf4 Bf8 Ng2 Be7 Nf5 Bg7 Nf6 Bgf8 Kg4 h5 Rc4 Bb5 Ng7 Bd7+ Kg5 Re1 Ra4 Rh4 Rb4 Re2 Rc4 Kc2 d3+ Kb2 d2 Kc2 Ra4 Kd3 Rf5 Rc4 d4 Rb4 Kh4 Rc4 Rf4 Rb4 Bg5 h6 Kh5 h7 Bh6 h8B d1Q+ Rd2 Qb3 Re2 Qd5 Rc4 Qda8 Rb4 Nfd5 Rc4 Nc7 Nf6+ Kh4 Rb4 Nce8 Ng4+ Kh5 Rc4 Ne6 Be5 N6g7 Qb1 f1N Rb4 Nh2 Qf1 Nc6 Kc4 d3+ Kc5 Ne4+ Kd5 d2 Rc4 Na5+ Kd4 Ra3 Ra4 Re3 B5f6 Rd3+ Ke5 Nf5 Ke6 Nc3 Kf7 Nfg7 Kg8 Rdd4 Be5 Ne1 Kh8 Qhd5 Rf2 Ng2 Re2
NN1b1q1R/1RpBB2n/1p4qR/Bbq1nbn1/4Q3/6n1/2r1kB2/bN4K1 b - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 g4 g5 d4 f5 d5 d6 c5 dxc5 Nd2 Ra4 Ndf3 Ra7 Nd4 exd4 Bf4 Ra6 Be3 Rg6 Bf4 fxg4 Bc1 g3 Rh2 g4 Rh1 Rg5 hxg5 Ke7 Qd3 Kd7 Qd1 Ke8 a4 Ke7 f4 Kd6 e4 h5 f5 Ke5 a5 b3 d6 d3 a6 Kd4 g6 d2+ Ke2 c4 g7 b2 f6 b1Q a7 h4 a8N g2 Kf2 b6 f7 g3+ Ke2 c3 d7 c2 e5 h3 e6 h2 e7 Nf6 e8R Nc6 g8N Be7 f8B Nh7 Ra7 Ne5 Qe1 d1B+ Kd2 Be2 Rb7 Bb5 Ne2+ Kc4 Ke3 g1N Bh3 g2 Kf2 Kd3 Bg4 Ngf3 Nf6 Nfg5 Bd2 c1Q Nc3 g1B+ Kf1 Qbc2 Nb1 Bd4 Ba5 Ba1 Bh6 Qe3 Rf8 Qe8 d8B Bf5 Nd7 Qec5 Nb8 Qf7 Rg8 Qf8 Rg6 Bf6 Be7 Rg8 Bg7 Rh8 Rh6 Rg8 Rg1 h1N Rg2 Rh8 Rgh2 Rg8 Qh4 Ke3+ Kg1 Ng3 Rh1 Rh8 Bh3 Ke2+ Qd4 Bg6 Bd7 Bf5 Bd6 Bd8 Be7 Qc6 R1h3 Qg6 Bgf6 Qc4 Bc5 Rg8 Bfe7 Rg7 Qh4 Qc2 Bf2 Qc5 Qd4 Rf7 R3h4 Rf6 Qd5 Rd6 Qg2 Rd2 Rh3 Rc2 Rh1 Nf6 Rh8 Nfh7 Rh6 Bh3 Qd5 Bf5 Qe4+
1B2qNr1/BR2b3/1rbrR3/6p1/1B2pRN1/n1Kp1QRb/5q1N/2b1kb2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 e4 a5 f5 axb4 Bc4 Na6 Be6 fxe6 Qd3 Nc7 Qd1 Nd5 e5 Ndf6 exf6 e5 Be3 e4 Bh6 Ra5 Bc1 Ra8 Kd2 Kf7 h4 d5 a4 g5 c4 b5 h5 e5 h6 g3 h7 b3 c5 b2 a5 e3+ Kc2 d3+ Kc3 e4 c6 g2 c7 b4+ Kb3 e2 a6 e1Q a7 d2 Rh3 d4 Kc2 Nh6 Qf3 Ng4 Qe3 Ne5 Ra2 Qf2 Nf3 g1B Qd3 Rg8 h8B Nc4 Na3 b1R Rg3 Be7 Rb2 Qe8 Nh2 Rb8 a8R Rb6 Ra5 Rd6 Qf3 d3+ Kb3 d1B+ Nc2 Be2 Ne3 Bf1 Neg4 Na3 Be3 Bb7 c8R Ba8 Rb5 Bc6 Ka4 b3 Kb4 Qc2 Bb6 Be3 Ba7 Bc1 Rb7 Qf2 Rc2 b2 Kc3 Ra1 Bg7 b1B Rcb2 Ra2 R2b6 Rb2 Ra6 Ba2 Bh8 Kf8 f7 Rb6 Be5 Be6 Bf4 Kg7 f8B+ Kf7 f6 Kg6 f7 Kh5 Ra8 Kh4 Rd8 Rd7 Bfb8 Rd4 Rd6 Bc8 Rf6 Rd6 Ne5 Bch3 Neg4 Ba4 Rf5 Bc6 Rf4 Rd8 Ra5 Qg1 Rd5 Bf6+ Re5 Qg2 Bfd6 Be7 Bb4 Rd6 f8N Qe2 Rg1 Qg2 Qd1 Kg3 Rh1 Qe2 Re6 Qf3 Ne3 Kf2 Rg1 Rd4 Rg3 Rd6 Rfg4 Qg2 Qf3+ Ke1 Rf4 Qf2 Neg4
B3Br2/3Rrr2/2N1pnNq/5p2/1kn2Qbq/nn1RR1Nn/K1B1p3/7R b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 f4 fxe4 f5 a5 Kf2 axb4 Ke2 Ra5 Ke1 Ra8 h4 Nc6 g4 Ra6 g5 Ra3 f6 Ra8 Bf4 Kf7 Be5 Ke6 f7 Kd5 Bf6 gxf6 g6 Bh6 Qf3 Nb8 Qd1 Bg5 hxg5 Kc6 Kd2 Kc5 Kc1 b5 Kb2 h5 f8N d5 c4 d3 a4 b3 g7 d2 a5 d4 g6 b4 a6 e3 a7 e2 Nh3 d3 Rh2 h4 Ng1 h3 Qc1 d1R Bg2 d2 Bf3 Rf1 Be4 Nc6 Nc3 Ne5 Rh1 h2 Bc2 Bg4 Ra3 e6 Nf3 Rh7 Nd4 d1N+ Ka1 b2+ Ka2 b1N Nc6 Rf3 Qf4 Nd2 Rb3 Rb8 a8B Nf2 Ra3 Nb3 Ne4+ Kb6 c5+ Kb5 Ng3 Nh3 Ra7 Nc4 Rd7 Rb7 Rd3 Re7 Rd7 f5 Rd3 Nf6 g8R Rhf7 g7 Rf2 Rd7 Rg2 Ng6 Rg1 Rh8 Rb1 Rhd1 h1Q g8R Qf8 R1d3 Qh6 Re3 Qe1 Rgd8 Rf8 Nh1 Qeh4 Ng3 Ref7 Na7+ Ka4 c6 Rd1 c7 Rd3 Re7 Rd7 c8B Rc7 Red7 Ka5 Rdd3 Rce7 R8d5+ Nc5 Rd6 b3+ Ka1 Q4h5 Bab7 Ng5 Bb1 Qg7 Bd7 Kb4 Bd5 Qh1 Rh3 Qh6 Be8 Qh2 Rd7 Qf2 Nf1 Qfh4 Rh1 Nh3 Bg2 b2+ Ka2 Nb3 Be4 Nd6 Bc2 b1N Ng3 Nc4 Ba8 Na3 Nc6+
1Rrn1BbK/nrBr1B1p/Rp4q1/Np5R/1rq1p3/5Nr1/1N6/1Q2N1k1 b - - 0 1 legal: proof: b4 f5 d4 g5 a4 c5 e4 fxe4 h4 cxd4 b5 gxh4 a5 Bh6 a6 Bg5 b6 axb6 a7 Na6 Qd3 Bf4 Qd1 Bb8 axb8R b5 Kd2 Kf7 f4 Ke6 g4 Kd5 f5 e5 f6 e3+ Kd3 e4+ Ke2 h3 c3 d3+ Ke1 h2 f7 d2+ Ke2 b6 f8B Ra7 c4+ Kd4 c5 d5 c6 Nc5 g5 Qc7 g6 Ne6 g7 Nd8 Bh3 Rb7 Na3 Ne7 g8N Be6 Qe1 Qd6 c7 d1R c8N Nec6 Nge7 Bg8 Be6 Na7 Bf7 Qg6 Nd6 Rd3 Ndc4 Rb3 Nb2 Rb4 Kf1 e2+ Kf2 Rb3 Bg5 Rg3 Qb1 e1R Bf4 Rc1 Bd6 Rc4 Bc7 Rb4 Ke2 Nac6 Kd2 Na7 Kc2 Ke3 Kc3 Kf2+ Nf3 Kg2 Nc6 Kf2 Na5 d4+ Kc2 d3+ Kc3 d2 Nc2 d1Q Ne1 Qe2 Ra2 Rb3+ Kd4 Qc4+ Ke5 Rb4 Rg1 h1R Ra1 Rh6 Rh1 Rh2 Ra2 Rhg2 Rh5 Kf1 Ra4 Rd2 Ra3 Rd7 Ra1 Qg4 Kf6 Kf2 Nb3 Kf1 Ra6 Kf2 Na5 Kf1 Nd2+ Kg1 Ndf3+ Kf2 Rd5 Ne6 Bh5 Bf7 Bfd6 Rc8 Bf8 Bg8 Bf7 Nd8 Rg5 Qf5+ Kg7 Qg6+ Kh8 Kf1 Rh5 Kf2 Ne5 Kg1 N5f3+
k1RnQn1r/3q1B1B/p2N2nK/5Np1/n3rB1B/3pp2q/7b/R1q1NR2 b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 e4 b5 g4 bxa4 e5 hxg4 e6 fxe6 Bd3 e5 Bf1 e4 b5 a6 b6 d6 b7 Nc6 Nc3 Na7 Nb1 Rb8 bxc8R Rb6 Ra8 Rc6 Kd2 Kd7 c4 Kc7 f4 Kb7 h4 e5 h5 g5 f5 d3 Ke3 g3 f6 g2 c5 d5 f7 d2 h6 a3 h7 a2 Qe1 d1N+ Ke2 e3 Kf3 e2 Kg4 d4 Kh5 e4 Nf3 g1N Bf4 Qd7 Rc8 Ne7 Na3 Ng6 Nc2 Nb2 Nh4 Re6 Nf5 Bd6 f8B Nf3 Kh6 Nc6 Bg3 Na4 Bh4 Bh2 Bd6 Ka7 Bf4 Nd8 c6 Nfe5 c7 d3 Bh3 Re7 Rf1 Nf8 Bg4 Neg6 Bh5 Ne5 Bf7 Neg6 Qd2 e1Q Qe2 Qg3 Ne1 Qh3 Qh5 Rg8 h8N Re6 Qe2 e3 Qh5 Ne7+ Qg6 Re4 Qe6 Neg6 Qe8 Nb7 Be6 Nd8 Nf7 Kb7 N7d6+ Ka7 Rb1 a1Q Bf7 Qc3 Ra1 Qd2 Rb8 Qc1 c8B Qe7 Bce6 Qd7 Rc8 Rh8+ Kg7 Qb5 Bg8 Qd7+ Bef7 Qg3 Bh7 Qh3 Rc2 Kb8 Kh6 Ka8 Rc8+
1k2RN2/NrN1K3/1br4p/B2R3Q/bBr1b1r1/3qpb2/p3p2B/1B4nR b - - 0 1 legal: proof: e4 c5 a4 f5 d4 fxe4 b4 cxd4 h4 b5 c4 bxa4 b5 Na6 h5 Nc7 b6 Nb5 h6 gxh6 cxb5 h5 Kd2 h4 Ke2 Qc7 Ke1 Qd8 Kd2 e5 g4 a5 f4 d5 b7 Kd7 b8R Kc7 f5 d3 Ke3 d4+ Kd2 h6 f6 e3+ Ke1 d2+ Ke2 a3 Kf3 d3 Ke4 h3 g5 h2 g6 a4 f7 e2 g7 a2 Bg2 a3 Nh3 Bd7 Kd5 e4 Qa4 d1R Ng5 Ra6 Bd2 Rh7 Nc3 Rg1 Rd1 Bc5 f8B a1R Qa5+ Bb6 Bb4 a2 Be1 e3 Be4 d2 Bb1 Bc6+ Ke6 Nf6 g8N Ng4 Nf6 Qd3 Nd7 Bf3 Re8 Nf2 Nf8 Nh3 Kf6 Kb7 Nge6 Rg4 Nc7 Ng1 Ke6 Rd7 Kf6 Rdd4 Kf7 Rc4 Ke7 Ba7 b6 Be4 Bc2 Rb1 Qh5 Rb3 N3b5 Rb2 Ra1 d1B Bb1 Bb3 Ba5 Ba4 Beb4 Bf3 Bc2 Rb3 Rd1 Be4 Bb1 Rb2 Rd8 Rb3 Rd5 Kb8 b7 Rac6 Re5 Bb6 Na7 Qc2 Rdd5 Qd3 Re6 Nh3 Rd1 h1B Rg1 Bhf3 Rh1 Ng1 Kd8 Rb2 Re8 Rd6+ Ke7+ Rd8 Nh7 Bd4 Be1 Rb5 Nf8 Rbc5 Beb4 Rc6 Ncb5 Bb6 Nc3 Kc7 b8B+ Kb7 Bh2 Rb8 Ncb5 Ka8 Nc8 Rb7+ Nc7+ Kb8 Na7+
BB1b1NK1/2qR1r2/r5n1/Q2bqkn1/2n3n1/1R1R4/bNR1n2n/1B1r1Nq1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 b5 a4 h3 g4 f3 e4 d3 c4 b3 a5 h4 a6 h2 c5 d2 c6 h3 a7 b4 c7 b2 Bd3 f2 Ra5 f1N Qa4 d1R Qa1 b3 Ra2 Na6 Ra5 Ne7+ Kd6 Ng3 Ne2 Ng6+ Kd5 Be7 Rc5 Bb7+ Kc4 d5+ Kd4 Rf8 c8B Nc7 Nd2 b1N Nc3 b2 Nf1 Na3 Bf4 b1B Na4 Nc4 Nb2 Ba2 Rb5 Qd7 Rb3 Bd8 g5+ Ke6 e5 f5 Kc5 d4 Bb1 Bd5 Bb7 d3 Rg1 h1N Rg2 h2 Rc2 d2 Kd4 Rb8 a8N Nf2 Nb6 h1Q Ba8 Qh5 Rd3 Qg7 Nd7 Ne2+ Kc5 Rf7 Nf8+ Ke7 e6 Rb6 Bg3 f4 Bh2 f3 Bf4 Nh4 g6 Kf6 e7 Kf5 e8R Ra6 Re7 Ng4 Rd7 f2 Rb3 Qe5 g7 Qh7 g8R Ng6 Rh8 Qh2 Rhh3 Qg1 Rhd3 Ne6+ Kb4 Ng5 Kc5 Re1 Bg3 d1Q Bf4 Qc1 Bh2 Qg7 Bg3 Rd1 Bb8 Nb6 Kd6 Qh8 Re7 Nc4+ Kd7 Qf4 Ke8 Qc7 Rd7 Qhh2 Na4 Qhf4 Qc3 Qfh2 Nb2 Qhd6 Nd2 f1N Qa5 Nfh2 Nf1 Qdc5 Nh7 Be6 Rdc3 Rg7 Nf8 Q5e5 Rcd3 Bd5+ Ne6 Nh8 Kf8 Rf7+ Kg8 Ng6 Nf8
3K1Rnr/BrB2rr1/2R4n/b1nb1B2/1bQ1NRq1/4r1n1/1n1q1NN1/4N2k b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Ke6 h4 Ke5 a4 f5 c4 d5 a5 b5 h5 g5 a6 f3 Kg3 d3 h6 d2 h7 f4+ Kh2 d4 a7 d3 c5 f2 c6 b3 c7 b4 Ra3 b2 Qf3 d1Q Ra4 g3+ Kg2 b3 Nh3 g4 Qe2 d2 Rg1 f3+ Kh1 g2+ Kh2 Na6 Kg3 Be6 c8N Bd5 Rb4 Nc5 Na3 b1R Qc4 b2 Bd3 f1R Rh1 g1B Ne7 f2 Kh4 g3 Kg5 g2 Nc2 Nh6 Ne1 Qe2 Rb6 d1N Be3 Qd6 Rb4 Re8 a8R Bh2 Nf5 g1R+ Ng3 Qe6 Nf4 Qd2 Nfg2 Bd6 Rd8 Bc7 Rc8 Ba5 Rc6 Re7 Ra4 Rb7 Rb4 Ra1 Ra4 b1N Bc2 Bb4 Ra8 Ra2 Rf8 Ra3 Bd3 Nbc3 Rf4 Nd7 Ba7 Na4 Bc2 Nac5 Bb1 Rf8 h8B+ Nf6 Bg7 Rh8 Bf8 Qh3 Bd6+ Ke6 e5 Nfg8 Kg6 Re3 Ne4 Nb2 Rf8 Qf3 Bc2 Bf4 Rh4 Bg5 Rg4 Bd8 Rgf4 Bda5 Bc7+ Kd7 Kg7 Qg4+ Rg6 Ke7 Bb1 Kd7 e6+ Kc6 e7+ Be6 Qa6+ Kd5 e8N Kd4 N8d6 Bb3 Qc6 Bd5 Nc2+ Kd3 Nce1+ Ke2 Qa4 Rh1 Qb3 Rfg1 Qa2 f1N Nf2 Ng3 Bf5 Kf1 Nde4 Rh5 Qa4 Rg5 Qc6 Rh1 Qa6+ Kg1 Qc4 Rh3 Rf7 Rh4 Kf8 Rh7 Rgf6 Rgg7 Ke8 Kh2 Rf8 Rh8 Nh3 Kh1 Rc6 Rh5 Kd8 Rhg5 Nf3 Rf7 Nfe1 Rgg7 Nhf2+
1KN2n2/1Rrk1nr1/3q1BN1/b1NBrR2/1B1nQ2B/1r3n2/R3qbq1/n6b b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e5 a4 d5 c4 b5 h4 g5 f4 e3+ Kd3 g3 a5 g4 f5 b3 f6 b4 a6 g2 f7+ Kd7 a7 g3 h5 e2 c5 e1N+ Kd2 d3 Ke3 b2 h6 e4 Kf4 d4 Ke5 e3 h7 b3 Qd2 e2 Qf4 d2 Qf2 d1N Ra2 d3 Rh3 d2 Rh1 Nf3+ Kd5 e1R Ra5 Bb7+ Kc4 Nd4 Qf6 Re5 Nh3 g1B Qh4 g2 Rb5 Bf2 Nf4 g1N Bg2 Nh6 Nc3 b1Q Ne4 b2 Ng6 Ngf3 Rf1 Rg8 h8B Ne3+ Kb4 d1Q Bf6 Bg7 f8B Qe2 Rb6 Nec2+ Ka5 Bd5 Bcg5 Na1 Bh1 Nf7 c6+ Ke8 c7 Qbc2 c8N b1R Nc5 Rb3 B8e7 Qd6 Rb7 Nd7 Qe4 Nf8 Bh4 Bh6 Bg2 Rg7 Bh1 Rb8 a8R Rc3 Raa7 Bd2 Ra6 Bc6 Kb6 Rc4 Ra2 Ba5+ Ka7 Rc3 Rc7 Rbb3 Rb7 Bd5 Na6 Rc7 Kb8 Qcd2 Nc5 Qg5 Rg1 Qgd2 Rg5 Bc6 Rf5 Qg5 Nd3 Qg2 Nc5 Bd5 Bfg5 Bc6 Bef6 Bd5 Bd2 Bc6 Bb4 Bd5 Na6 Kd7 Nc5+ Kc6 Ka8 Nd2 Rf4 Qgf1 Qb1 Be4 Kb8 Bg2 Na4 Kd7 Rf5 Bc6 Bd5 Qh3 Bc4 Bh1 Qe4 Qg2 Bd5 N2f3 Nc5+
bN4rQ/q2BK2n/r1N4N/2Bq1r2/N4k2/b1nB2rq/2rr2R1/1q1RbR2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 c6 b2 c7 b4 Qb3 d1R Rh3 g4+ Ke2 d3+ Kf2 f3 Ke3 f2 Rh1 g3 Bd2 f4+ Kf3 Bb7 Kg4 f3 c8R Qc7 Kg5 Na6 Rb8 Nf6 Be1 d2 Ne2 g1R Qc4 g2 Qf7 b3 Nd4 Ba3 Be2 f1Q Bd3 f2 Nc3 b1R Qg7 b2 Rg8 Nb4 Na4 Nd5 Kg6 Qb8 Kf7 Nc3 Nc6+ Kf4 e5 Rbc1 e6 b1Q e7 Rc2 e8B Qc7+ Bd7 Qb8 Re8 Rg8 h8N Nh7 Re2 Qc7 Qf8 Rg3 Qg7 Rg8 Ke6 Ba8 Nf7 Qcb6 Nh6 Qd4 Rh3 Rh1 Rh2 g1B Qh8 Qh3+ Kf7 f1R Reg2 Rff3 Bf2 Qc5 Bd4 Bf2 Rg1 Qa5 Rhg2 Be1 Rf1 Rh2 Bf2 Rdc1 Bb6 d1Q Bc5 Ra2 Ke7 Rcc2 Ba6 Qd5 Bd3 Qbb5 Rd1 Qb1 Rgg1 Rhd2 Rg2 Bb7 a8N Qa7 Nc7 Ba8 Rc1 Kg5 Na6 Rf5 Nab8 Ra1 Rfg1 Kf4 Rd1 Bb4 Nb6 Ra6 Na4 Ba3 Rf1+
R1RnB1r1/B2rk1R1/qb3N2/Nb1b2NR/1n3bB1/7K/1prqnq2/3b1Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 Kg2 f5 a4 g5 h4 b5 c4 d3 e4 g3 e5 d2 h5 d4 e6 f3+ Kh3 b3 h6 f2 h7 b2 a5 b4 a6 b3 e7 g4+ Kg2 f4 c5 d3 a7 Nf6 c6 Nd5 c7 Bh6 Be2 Be6 c8B Nb4 Ra2 N8c6 Rh4 f1B+ Kh1 g2+ Kh2 f3 Ra5 f2 Rg5 Rg8 h8R Bd5 Rg6 g3+ Kh3 Bf4 Bcg4 Rc8 Qc2 d1B a8R d2 Nc3 b1Q Nb5 b2 R4h5 Qa1 Qc3 Qa6 Qf3 Qd6 Bd3 Nd8 Rg7 Rc2 Nd4 Qh6 Bdf5 Bb5 Nc6 f1Q Na5 Qf2 Qd3 Qhd6 Nf3 g1B Ng5 g2 Qf1 Qh6 Be2 Qhd6 Bg6+ Kd7 Bf7 Qh6 e8N Ke7 Rc8 Bc7 Rhh7 Bgh2 Be6+ Kf8 Ne4 Bb7 Bd3 Bf3 Re7 d1R Be3 Rdd2 Rd7 Bd1 N8f6 B7c6 Bdc4 Rd5 Bb6 Qhd2 Rhg7 Rd6 Bd3 Bd5 Ng5 Be5 Ra8 Bh2 Ba7 Bb6 Rc7 Rd7 Bf7 Ke7 Be2 Bd6 Rcc8 g1N+ Kg4 Bf4 Be8+ Kf8 Bf3 Ne2 Kh3 Qc1 Bf7 Ke7 Bg4 Qd2 Be8+
8/2r1R2N/K1R1B2k/2RNqQ2/2rq2Bb/n1b2q1q/1p1Bb1nN/1N3nrq b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 Kd3 g5 h4 b5 a4 f5 c4 Kf7 e4 Kg7 e5 b3 h5 b4 c5 b2 a5 g3 e6 g4 c6 b3 e7 f3 e8B f4 a6 f2 a7 g2 c7 f3 Nh3 g1B Na3 b1Q+ Qc2 g3 Bg5 b2 Bf4 g2 Bd2 Qe1 Nc4 Qe5 Re1 Rh7 Bc1 Be7 Re2 Bg4 c8R Nf6 Ba4 Nc6 Bg5 Na5 Na3 Nc4 Nb1 Na3 Bh4 Kh6 Rc5 Rc8 a8N Bh2 Bb3 g1R Bg2 f1Q Nc7 f2 Ng5 Rg7 Bf3 Qh3 Rc6 f1N Nh7 Bg3 Qc5 Be1 Bg3 Bd2 Be1 Bc3 Re3 Rf7 Bd2 Qdd6 Bfd1 Bf3 Qb5 Ng4 Rc5 Bh4 Rc6 Qf4 Re7 Nge3 Rh2 Bg4 Rf2 Qe5 Rf5 Kg7 Bf3 Ng2 h6+ Kg6 Ne8 Rc7 Nef6 Rf8 Bc4 Rfc8 Bb3 Bh5 Ng4 Qdf6 Nh2 Bg4 Ra6 Rc4 Rc6 Rc7 Ng5 Qfd6 h7 Kh6 h8N Bh5 Ng6 Qc5 Be3 Qa7 Bg4 Qb7 Ke2 d3+ Kd1 Qe4 Rcf6 d2 Nh7+ Nf4 Bf3 d4 Ra6 Rb4 Be6 Qbd5 Be2 Qh1 Rc6 Ra4 Qd3 Qd6 Rfc5 Rc4 Qf5 Qe5 Bf3 Bg5 Be2 Ng2 Nf4 Bh4 Bf3 Nb5 Kc2 d3+ Kb3 Na3 Bd4 Bg4 Nd5 Bh5 Bf2 Bg4 Be1 d1Q+ Ka2 Qde2 Kb3 Q2e3 Be2 d2 Bd1 Q3d4 Be2 Bb4+ Ka4 d1Q+ Qc2 Q1d3 Bd2+ Qd3e3 Qf5 Bc3+ Nb4 Qdd5 Ka5 Qdd4 Ka6 Bh5 Nd5 Bg4 Bd3 Bh5 Be4 Be2 Bf3 Q3f4 Bg4 Qfe3 Ng5 Qef3 Nh7+
2rQ1NN1/Rn2K3/NRb4b/1q3rkr/rBrr2Br/1p2R2B/B3nn2/3q4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 b5 a4 h3 g4 f3 e4 d3 c4 b3 a5 h4 a6 h2 c5 d2 e5+ Kg5 c6 f5 c7 h3 e6 f2 e7 b2 Kd6 b4 a7 b3 Ra3 f4 Ra6 f3 Na3 b1R Be2 f1N Qe1 f2 Bd1 Qe8 Ne2 Nf6 Rg1 h1R Rc6 h2 Nd4 Bh6 Nac2 Ng3 Ba3 f1R Bf3 d1R Bb4 Bb7 c8B Na6 Rb6 Ne2 Rg3 Nc5 Rh3 Rd2 Qd1 Rc1 Rg3 Qh5 e8B Nfe4+ Ke7 d5 Bg6 Bc6 Bg2 Rhf8 Re3 Nb7 Bh3 Nf2 Bd7 Rac8 a8R Rf5 Ra7 Ra1 Be6 Ra4 Bd7 Rd3 Qd2 Rc1 Ne6+ Kh4 g5 d4 Qd1 Rd2 Nf8 d3 Na3 Rc4 Nb5 Na5 Bh7 Nb7 g6 Kg5 g7 Bg2 g8N Bc6 Qf1 Rd1 Nc7 d2 Rc3 Re1 Re3 d1Q Bg4 Rd4 Qg2 Reg1 Qf3 Rg2 Bh3 Rgg4 Qd5 Rh4 Qd6 Rf1 Na6 h1R Bg4 Rfg1 Bh3 Rgg4 Qc7 Rc4 Qd8 Rgd4 Bg6 Qf3 Bh7 Qd5 Bg6 Qb5 Be6 Rf3 Bb1 Rf5 Ba2 Rh5 Bg4 R1h4 Bh3 Rff4 Beg4 Rf3 Qd6 Rf5 Qd8
1n3R1n/3B2Q1/4n1n1/1p4NK/2RN1r1n/B1qb1n1r/nRNq1q1b/1B1k3B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 c4+ Ke4 a4 b5 a5 d5+ Kh5 f5 g4 h3 e3 h2 c5 f3 a6 b3 g5 f4 g6 d3 g7 d2 c6 d4 c7 d3 a7 b2 Ra2 f2 Ra6 f3 Qe1 d1Q Qe2 d2 Ra1 Qf6 Qe1 Nh6 g8N Bd6 Ne7 Nf7 Bc4 f1N Ne2 f2 Ra6 Kf3 e4 Bf5 c8B Ne3 e5 f1Q e6 Qc3 Ng6 Qf2 e7 Bd3 e8B Ng4 B8e6 Nge5 Rf1 h1N Ngf4 Ng3+ Kh4 h5 Ra2 Ng6+ Kh3 h4 Bf5 Nh5 Ra6 Ng7 Ra3 Ne6 Ra1 Rh5 Bb3 Nfh8 Na3 b1N Ra2 Qdc2 Bd7 d1N Rb2 Nd2 Bc4 Ke3 Kg4 h3 Bb3 h2 Nh3 h1N Ng5 Bh2 Bd5 Ng3 Bh1 Rh3 Bfe4 Nf5 Rg1 Rg3+ Kh5 Nfh4 Bf5 Rh3 Rg4 Bd6 Qg1 Bh2 Ra2 Q2b2 Rc4 Qbb4 Bb2 Ndf3 Nc2+ Kd2 Ba3 Qbb2 Ned4 Kc1 Bc8 Qcd2 Qg3 Nc3 Bd7 Kd1 Qg4 Qb3 Rb2 Na2 Qg3 Qbb4 Qe5 Qbc3 Qg7 Na6 Be4 Rf8 a8R Rf4 Rf8 Nb8 Nb4 Bf1 Bb1 Bd3 Nbc2
1bQb3B/1KB5/B1p2q2/1N1N2Br/bR2RRq1/1kq1nnb1/q5bq/3r2N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 a4 Kd6 e4 Kc5 h4 f5 a5 b5 h5 g5 a6 f3 Ke3 f4+ Kf2 g3+ Ke1 b3 d4+ Kb4 Kd2 c3+ Kd3 f2 d5 g2 Kd4 g4 h6 b2 h7 g3 d6 c2 Kd5 f3 a7 Nd7 Kc6 Nh6 e5 Be7 e6 Kb3 Qd2 b4 Be2 f1Q Qf4 f2 Qe5 Qg8 Nf3 g1Q Qb5 g2 Nh4 Ne5+ Kd5 Bd7 Nf3 Qh2 Ng5 g1B Nc3 b1Q Bd3 Nf3 Bd2 c1B Ra4 Nf5 Qb8 Qa1 Ba6 Bd8 Nh3 Qg4 Nb5 Qc3 Bg5 Bf4 e7 Bg3 e8R Qfa1 Re5 f1B Qc8 Bg2 Re4 Be3 Rc1 Bef4 Rf1 Qf6 Kc5 Ne3 Ng1 Rb8 a8N Qac3+ Rc4 Be8 d7 Rb6 Re1 Rd6 Nb6 Rd1 Re2 c6 Nd5 Bb8 Rf2 Bg6 Rf1 Bc2 Rf2 Rf8 h8B Rf7 Rf1 Rh7 Rf2 Rh5 Rf1 Be7+ Kb6 Bd8+ Kb7 Kb2 Nf4 b3 Rab4 Ka2 Re4 b2 Nd5 b1Q Rf2 Qbb2 Rf1 Ba4 Rf2 Nd2 Rff4 Nf3 Rbd4 Kb3 Rc4 Ba5 d8B Qa2 Bc7 Bb6 Bd6 Bd8 Bc7 Rh6 Rcd4 Rh5 Rb4+
1rbnqQ1b/5pN1/2BN1n1n/2BrqB1R/2Knnk2/1B4N1/R6r/5Rrr b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 Kd3 Ke6 c4 Kf5 a4 d5 c5 h5 e3 b5 g3 h3 a5 f3 a6 f2 a7 h2 c6 h4 c7 h3 Ne2 b3 Ra5 b4 Qd2 b2 Qc3 b3 Ra3 Nc6 Ng1 Bg7 Qa5 Qe8 Nd2 b1Q+ Ke2 b2 Ne4 Qa1 Kd3 b1R Qc5 Nd8 Qf8 Nf6 Ra2 Rab8 a8B R1b5 Bg2 f1N Bc6 Nd2 Ba3 Nb3 Ne2 Rh6 Rb1 h1R Bc5 h2 g4+ Ke5 g5 Rg1 g6 h1R Rf1 Bh8 g7 R6h2 g8R Qe1 Kc2 d3+ Kb2 d4 N2g3 d2 Nd6 d3 Kc3 d1N+ Kc4 d2 e4 Nf2 Rg5+ Kf4 e5 d1N e6 Ra5 e7 Nd4 Bgd5 Qe5 Rh5 Nc3 Be6 Nce4 Bf5 Qd7 e8N Qde7 Ng7 Qe8 Bb6 Rd5 Bc5 Ng8 Be6 Nh6 Bf5 Nf6 Bc2 Bg4 c8B Bf5 Bb3 Bg4 Re1 N2e4 Bf5 Bh3 Bh7 Be6 Bf5 Bc8 Rf1+
nN4B1/1r3qkq/1nb1b2r/1R2Rq2/3B2Q1/NqbrNbBR/q2p4/4NK2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 d5 c4 g5 h4 b5 a4 f5 e5 Kf7 h5 f3 e6+ Kg7 e7 f4 e8R g3 a5 d3 c5 g4 a6 b3 c6 f2+ Kd2 d4 a7 b4 c7 g2 Bb2 f3 Qc2 g3 Ra4 Qg5+ Kd1 d2 Rh2 Rh6 Ra3 Na6 Bb5 f1Q+ Re1 f2 Be2 Nf6 Bc4 Nd5 Rh1 Rb8 a8N Rb7 Ra1 Qf5 Nh3 g1Q Ra4 g2 Qe4 Qh2 Ra3 g1R Nf4 Rg3 Nd3 Nb6 Ra5 Be6 c8N Nc7 Na7 Qhh3 Bc1 b2 Na3 b1Q Nc6 b3 Nb8 b2 Rb5 Bb4 Ba2 Qfg2 Ke2 Bc3 Rh2 Qh4 Rh3 Qgf3+ Kf1 d1B Bd5 Qa2 Bf4 b1Q Bd6 Qbb3 Qg4+ Qfg5 Re3 Qf7 Ne1 d3 Re5 d2 Bc4 Bf3 Bd5 Nc8 Nb6 Na8 Nbc4 Ncb6 Ne3 Qgg6 Be4 Qgg5 Bh7 Bc6 Bg8 Rf3 Nec4 Rd3 Ne3 Qgg6 Rec5 Qhg5 Bg3 Qh7 Re5 Kf6 Ke2 f1B+ Kf2 Be2 Kg1 Bef3 Kf1 Rg6 h6 Qf4 Kf2 Qf5 Kf1 Qhg7 h7 Rh6 Qe4 Qgg6 Qg4 Kg7 h8B+ Kf8 Bf6 Qgh7 Bg5 Kg7 Be7+ Qf7g6 Bc5 Qf7 Bd4 Qg5 Qf4 Qgf5 Qg4+
r1bn4/B2Rqq2/RN6/1n3r1b/KnRQ3B/1p1Bk1qn/N6N/1q2qBb1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 Kb3 d5 h4 f5 a4 b5 c5 d3 h5 Kd4 a5 d2 h6 f3 a6 g3 h7 g2 e5 g4 e6 f2 c6 g3 e7 f4 e8N f3 a7 Na6 c7 Ne7 Qe1 d1B+ Ka2 b3+ Ka3 b4+ Ka4 b2+ Kb5 b3 Bf4 Nc6 Bd2 Nab4 Ng7 Qe7 Qe2 Nd8 Nc3 b1Q Ra6 Rg8 Ne8 Rg5 Be1 Rf5 Qc2 Ke3 h8B d4+ Ka4 d3 Qb2 d2 Nd6 Bh6 Bd3 f1Q Na2 f2 Nf3 g1Q Nh2 g2 Qc3 Bh5 Bd4+ Kf4 Bc5 d1N Nc4 Qfe2 Qg7 f1Q Bh4 Qee1 Nb6 Qge3 Qb2 g1N Qa1 Nh3 Qd4+ Q3e4 Rg1 Qg3 Rg2 Qfe1 Rd2 Qf7 Bf1 Bb7 c8R Nc3+ Ka5 Nb5 Ka4 Bg7 Rc7 Be5 Rd7 Bc7 Rc2 Bc8 Rc4 Be5 Qd3 Bb2 Qd4 Bc1 Bd3 Be3 Bf1 Rb8 a8B Bg1 Bd5 Ra8 Be6 Rf6 Bg4 Rf5 Bge2 Ng5 Ng4 Nh3 Bd3 Kf3 Bd6 Qee8 Bb8 Q8e7 Ba7 Nd5 Qh8 Nb4 Nh2+ Ke3 Qd4+
BnNq4/qBRq3b/2r5/1kNnB2r/Q1nbp3/7n/KRqR1nN1/N1b5 b - - 0 1 illegal: No possible last move
rNnb2n1/1kq3R1/3pB2N/3BB3/1nnb4/B1R1Q1K1/q2br2R/2nbr1N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 h4 b5 e4 g5 c4 b3 a4 b2 h5 g3+ Kg2 f3+ Kh3 f2 c5 b4 a5 f4 c6 b3 e5 d3 c7 d2 a6 g4+ Kg2 d6 h6 Kd7 a7 Kc6 h7 Nd7 e6 Nb6 e7 Kb7 e8N Bh6 Qc2 d1R Be2 f1N Rh3 f3+ Kh1 f2 Kg2 Bd2 Qc3 Ne3+ Kh1 f1N Ra2 Re1 Bd3 Nc2 Kg2 Nb4 Na3 b1Q Qd4 b2 Ra1 Qa2 Nf6 b1N Rh2 Nc3 Bf5 Ne2 Nb5 Qe7 Bb2 Nc1 Be6 Qd8 Ba3 Ne3+ Kh1 Bd7 c8R Nec4 Kg2 Qc7 Qe3 Be8 Nd4 Ba4 Nc6 Bd1 Rf8 Re8 Rf7 Nc8 Rb1 Re7 Rb3 Re8 Rc3 Re7 Rh6 Re8 Rg7 Re2+ Kh1 g2+ Kh2 g3+ Kh3 Re7 Ng4 Re8 Rh5 Re7 Nh6 Re1 Ne2 g1B Kh4 g2 Kg3 Re8 Rh2 Re7 Qe5 Bd4 Qe3 g1B a8B+ Ka6 Na7 Kb6 Bad5 Ka6 Nc6 Kb7 Qg5 Bge3 Ng1 Re8 Qe5 Bg5 Qe3 Bd8 Qf2 Nf6 Qe3 Rhf8 h8B Ng8 Rg6 Rf2 Be5 Rfe2 Rg7 N8b6 Bh1 Be7 Rh7 Ra8 Rg7 Nc8 Bhd5 Bd8 Nb8+
1Q2b3/1BR3B1/qq1R1RNn/b1Nb4/1k2R2q/rp5q/BK2N1n1/r1r1n1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Kd6 c4 Kc5 Kc2 d5 h4 f5 a4 g5 e5 b5 a5 d3+ Kb2 d4 e6 d2 h5 f3 e7 b3 e8R d3 h6 f2 h7 b4 a6 f4 a7 f3 Re7 g3 Ra3 g2 Re6 g4 Rea6 g3 R6a4 Nc6 Nh3 g1B Qe1 d1B Nd2 g2 Ra1 Be6 Be2 f1Q Qf2+ Nd4 Rb1 Qh4 Qg3 f2 Nf3 d2 Nf4 Bd5 Rh2 Nc2 Ne5 Ne1 Rba1 Rc8 a8B Nh6 Bb7 Rc6 Bd3 Bh5 Bb1 Be8 Ba2 d1Q Rb1 Qdg4 Ne2 Qgh3 Bg5 Bd6 Bf6 Bc7 Rd1 Ba5 Bg7 Rf8 h8N Rf3 Nhg6 Rc7 Kb1 b2 Rd4 Ra3 Nd3+ Kb6 c5+ Kb5 c6 Rc8 Nef4 Qe2 c7 f1N Re4 Ne3 Nc5 Qf1 Ne2 Qff6 Qe5 Qa6 Qf4 Bc4 Ng3 Bd5 Bb3 Be6 Nd7 Bc4 Re6 Bd5 Rc6 Bf2 Qd6 g1Q Ba2 Be6 Ne2 Bd5 Rh1 N3g2 Qg3 Qgh2 Rf1 Qg1 Re6 Bfb6 Rff6 Qc5 Qf4 Qc6 Qd6 Bg1 Qh2 Qcb6 Qd6 Nf3 Kc2 b1R Re4 Ra1 Kb2 b3 Rad4 Nfe1 Rd2 Bc6 Qf8 Bf7 Rdd6 Bcd5 Qg8 Rb8 Qd8 Be8 c8R Ra8 Rcc6 Rc8 Rc3 Rc4 Qb8 Kb4 Rc1 Rd4 Rc7 Rc4 Ree6 Rc3 Nc5 Rcc1 Re4+
2q1R2q/3N4/Bbr3N1/q1rBNk2/Q2nr1p1/2q1B1r1/bR5R/K1bnRn2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 d5 Kc2 f5 Kb2 g5 a4 b5 h4 f3 c5 d3 h5 d4 e5 b3 c6 f4 c7 f2 h6 g3 h7 g2 a5 g4 a6 f3 a7 b4 Qe1 d2 Ne2 d1R Ng1 d3 Bh6 d2 Qe2 Nc6 Ra6 Kf5 e6 Nd4 e7 Nf6 e8N Ne4 Bf4 Ng3 Nf6 Be6 c8B Qa5 Rh2 Rc1 Rh3 Rc5 Ng8 Bh6 Nc3 d1N+ Kb1 b2 Bd6 Bc1 Bb7 Rac8 a8R R8c6 Nf6 Re8 h8R Bb3 Qe3 Re4 Be2 f1Q Rae8 f2 Rh1 Qe1 Nf3 g1B Nd7 f1Q R8h2 Qh3 Rb6 Nf1 Bea6 Qh8 Nd5 Qc3 Bf4 Qe1 Bc8 Rb5 Be5 Rd6 Bf4 Nc6 Qd3 Ng3 Qe3 Ba2+ Kc2 Rg6 Bab7 b3+ Kd3 Rge6 Qd2 b1Q+ Qc2 b2 Nfe5 Bc5 Rg1 Nd4 Be3 Qeb4 Re1 Nf1 Nf4 Rh6 Rc6 Bb6 Rc3 Qa1 Rb3 Qc5 Bd5 Rd6 Ba6 Qc8 Nfg6 Rc6 Qc4 Rbc5 Qa4 Rc2 Nc4 Rg2 Rb5 b1R Nce5 Rg3 Rb4 Rb2 Rb3 Rbc2 Rb1 R2c5 Rb5 Ne6 Rb1 Bc4+ Kc2 Qa3 Rb5 Nd4+ Kb1 Ba2+ Ka1 Q3c3+ Rbb2
N4n1K/2nBBNRN/R2q1bR1/b4Q2/1n3nb1/pnr4B/2r1nk2/2rNr3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 h5 e4 d5+ Ke5 f5 c4 a5 g4 a3 b3 a4 g5 h3 g6 d3 g7 h2 Qe1 d4 Be2 f3 Bh6 a2 Qf2 a3 Bf4 d2 Bf1 d1R Be2 h4 Bd2 h3 Qf1 f2 Be1 f4 Qg2 f1N Nc3 d3 Bg3 d2 Nf3 Na6 Qf2+ Ne3 Rg1 h1R Bh4 h2 Rg6 Nc7 Bf1 Nf6 g8N Nh7 Nh6 Bg4 Bh3 Rc8 Ng5 f3 Nhf7 Rc1 Nd1 Re1 Rg7 h1N b4+ Kc6 b5+ Kc5 b6 Ng3 b7 Nh5 b8R Nf4 Qf1 f2 Ra8 Ned5 Ra6 Nb4 Qd3 f1N Qb1 Nf6 Nh7 Rc3 Qd3 Be7 Rc1 a1B Qd7 Qf8 Qf5 Bd8 Rg6 Ne3 Rb1 Nec2 Bg5 Nd4 Rb2 Na2 Rb7 Nb4 Bh4 Nb3 Bg5 Nfe8 Bh4 Nce6 Be7+ Nd6 Kf6+ Kd4 c5 Nb5 e5 Ba5 c6 Nbc7 Rba7 Qd8 Rb7 Nf8 Kg7 Qd6 e6 Rc1 Bd8 Bb2 e7 Bc3 e8N Ba1 Nf2 d1N Be7 Nc3 Nd1 Nce2 Rba7 Nb5 c7 Bb2 Nc3 Ke3 Rb7 Kf2 Rba7 Rd8 c8B Nc7 Bd7 Rc8 Rb7 Nb5 Nc7 Rc2 Na8 Nc7 Nf6 Rh4 Nh7 Rh6 Bg2 Rhh1 Kh8 Rec1 Bh3 Rhe1 Rg7 Qd5 Rag6 Qd6 Rb6 Ba1 Ra6 Bb2 Na4 Bf6 Nb2 Nce6 Bd8 R8c3 Be7 Nc7 Nd1+
3K2B1/R2NN2q/4Rb1r/1b1br2n/2R5/3QBNpk/nb1pB2r/bq2q2R b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kf5 f4 e5 c4 b5 a5 g5 h5 d5 a6 e3+ Kd3 e4+ Ke2 b3 c5 g3 a7 Kg4 h6 b4 f5 b2 f6 b3 f7 g2 h7 d3+ Ke1+ e2 Kf2 d2 Ke3 d4+ Kf2 d3 Ke3 Nc6 Ra3 Nb4 c6 Be6 c7 Na2 c8R Be7 f8N Nf6 Rc5 Nh5 Rc6 Bf6 Rh3 Qa5 Qc2 e1B Rh2 d1B Rc7 Bec3 Nh3 Be2 Ng1 Bd5 Nf3 g1B+ Rf2 Kg3 Rc4 g4 Nd7 Rac8 a8B Rc6 Qd1 Bce5 Qc2 Qe1 Nc3 b1Q Ra7 b2 Qd2 Qc2 Bb7 b1Q Qd1 Bf7 Nd5 Ba1 Ne7 Bd5 Qd2 Bfb2 Qc3 Rd6 Kd4 e3 Kc5 Rh6 Qa3 Bf6 Kd6 Bab2 Rg2+ Kh3 Kc7 Bh2+ Qd6 Bhe5 Bc6 g3 Ba4 Ba1 Bb3 Beb2 Qa6 Rg8 h8R Rg7 Kd8 Rgh7 Re8 Rh8 Bd2 R8h7 Ba5 d2 Bb6 Bd3 Be2 Rh8 Rg1 R8h7 Rd4 Bb5 Rc4 Rh8 Bc5 Qh7 Qd6 Bdc6 Qd3 Bd5 Bed1 e2 Be3 Qf2 Rf1 e1R Rg1 Re2 Rf1 Qe1 Rh1+ Rh2 Be2 Rg8 Rb4 Rg5 Re4 Ba8 Bg8 Bd5 Re6 Re5 Rf8 Bh4 Rf4 Bf6 Rc4
1nRR2bq/qnrrQ3/3ppB2/Br1kn3/2R2RN1/1r1Nb3/6K1/1r1BbN2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Ke6 a4 b5 g4 h5 c4 d3 a5 b3 g5 e3+ Kf3 e2 a6 e1B g6 d2 a7 b4 g7 h3 c5 b2 f5+ Kd5 c6 b3 c7 h4 f6 h2 f7 h3 Qc2 d1R Ra2 Rh5 Be3 Nf6 g8R Bh6 f8B Ne4 Bg5 Nd6 Nd2 b1R Ra4 b2 Bf6 Nb7 Be2 Be3 Nf1 d6 Qh7 Be6 c8R Qa5 Rf4 Rdc1 Bd1 Rc7 Ne2 Qa1 Rgg4 Bg8 Bh6 e6 Nc1 Re5 Rhg1 h1N Nd3 h2 Qe7 Nf2 Kg2 Qa6 Rh4 Ng4 Rc4 Rf5 Rd8 Ne5 Rhf4 Rd7 Rcc8 Rc1 Rfc4 b1R Bf4 Bc5 Bd2 Be3 Ba5 Rb3 Rf4 Rcc7 Rc4 Nbc6 Rf4 Rb8 a8N Qa7 Rh1 Nc5 Rc4 R8b4 Rg1 Nb8 Rf4 Nb7 Nb6+ Kc6 Nc4 Kd5 Ncd2 Rb1 Ne4 R4b3 Nef2 Rh5 Ng4 Rg5 Kh3 Rf5 Rg2 Rg5 Rgf2 h1Q+ Kg3 Rf5 Rc4 Qh8 Kg2 Rf4 Rcc2 Rfb4 Rc4 Rb5 Rff4
N1r5/q2k1prR/bNnBn1q1/rRBr2bB/2B1N2R/5p1K/b2r4/3q3Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 Kg2 b5 e4 d5 h4 f3+ Kg3 d3 c4 d4 a4 d2 h5 d3 h6 b3 c5 b2 a5 b4 a6 b3 h7 Nc6 e5 Bh6 a7 Kd7 Rh2 Nd4 Rh4 Ne6 Ra5 Ba6 Nc3 b1Q Na4 b2 Ne2 Ne7 Rb5 Nc6 Nec3 Qb8 Be2 Rc8 Qh1 d1Q h8B d2 Bc4 Qg6 Ne4 b1B Ba3 Ba2 Bg7 Qc7 Bf8 Qb8 Kh2 g3+ Kh3 g2 Bd6 g1R Bb4 Qb7 Ba3 Rg2 Bb4 Rab8 a8N Qa7 Ba3 Qe2 Bb4 d1R Ba3 Rd5 Bb4 Ng7 Ba3 Qd1 e6+ Kd8 e7+ Kd7 e8R Rgd2 Rh8 Ne6 Rh7 g4+ Kg3 Bg5 Bb4 R2d3 Kh2 g3+ Kh3 g2 Ba3 g1R Bb4 Ncd4 c6+ Ke8 c7 Kd7 Bbc5 Rd2 Rb3 Rb5 Rb2 Ra5 Rb5 Rb8 c8B+ Kd8 Bd7 Rc8 Nf6 Nc6 Ne4 Nf8 Bg4 Ne6 Bh5 Kd7 Rb3 Rgg2 Rb5 Bd8 Be3 Qh6 Nc7 Rg7 Na8 Bg5 Bec5 Qg6 N4b6+
2N3Q1/BqRp1N1q/Rn1n2rq/5b1B/2Nrb1bk/4Bb2/K2Rp3/3Rb2n b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Kf6 c4 Kg5 Kc2+ e3 Kb3 h5 g4 b5 a5 e5 a6 e4 f3 d3 a7 d2 c5 e2 c6 e1Q c7 e3 Ba3 h3 f4+ Kh4 f5 h2 g5 Nc6 g6 Nh6 f6 Nf7 g7 Nd6 g8R Rh6 f7 Na5+ Ka2 b3+ Kb2 b4 Qc1 d1B Ne2 Qe7 Rhg1 h1Q R1g7 Qd2+ Qc2 Qb7 Rg5 Rg6 Nf4 Bg4 Nd3 e2 Rd5 Qde3 Nd2 Qh6 Bg2 Nac4+ Kb1 b2 Qb3 Nb6 Bf3 Bg7 f8B Bc3 Nc4 Qeh7 Ka2 Be1 Nde5 Rb8 a8R b1B+ Kb2 Bbf5 Ka2 Be4 Bc1 Bef5 Ra3 Ra8 Nf7 Ra4 Rd2 Be4 Qe3 Bef5 Qe8 b3+ Kb2 Rb4 Ra6 Be4 Ka3 b2 Ka2 Bef5 Bg7 Be4 Bd4 b1B+ Ka3 Bbd3 Ka2 Bef5 Rh8 Bde4 Qg8 Ra4+ Na3 Rb4 Be3 Rd4 Nc4 Qa8 Bg1 Bcb7 c8N Bbc6 Be3 Qb7 Ba3 Bcd5 Rad1 Bc6 Bg2 Bef3 Bc5 Bce4 Bh3 Kg3 Bg2 h4 Bh1 h3 Bg2 Na8 Ba7 h2 Bh3 h1N Bg2 Be6 Bh3 Bgf5 Bg4 Nb6 Bh5 Kh4 Qg7 Rd3 Rd8 B5g4 Qg8 Rd4 Re8 B6f5 Re6 Nb5 Rc6 Nd6 Rc7
k4n1b/n1p3q1/RnRN1n2/n5Br/1bbQ2p1/8/BRr1B2N/1r1qNK1N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 d4 Kc6 h4 f5 e4 b5 e5 Kb7 d5 g5 d6 b3 d7 f3 a5 f4 h5 c3 h6 f2+ Ke2 b2 e6 b4 h7 f3+ Kd3 g3 e7 b3 e8B c2 Nh3 g4 Bd2 c1N+ Ke3 g2 Qc2 g1B Qd1 Nf6 Bc4 f1Q+ Nf2 Bb4 Bef7 Qf8 Ra2 Qg7 Na3 b1R Nc2 b2 Ne1 Nb3 d8N+ Ka7 a6 Nbd7 Ne6 Nf8 Rh6 Na5 Ng5 Be6 Be2 Bc4 Rg6 Bh2 Rh6 Be5 Nh1 f2 Ngf3 Re8 Nh2 Ka8 a7 Rd8 Bc1 Rd2 Be6 Rc2 Qd4 Qg1 Nd3 Qd1 Ne1 f1N+ Kf2 Ne3 Bf7 Ne8 Rc6 Nd5 Bg5 Nb6 Kf1 Nf6 Bg8 Rbc1 Be6 b1N Rb2 Nc3 Bd5 Rb1 Bg8 Kb7 a8R Nb5 Ra6 Na7 Be6 Ka8 Bg8 Bd3 Ba2 Bc4 Qe3 Rg8 h8N Bd4 Nf7 Rh8 Qd3 Rh5 Nd6 Qg6 Ne8 Nf6d7 Bc1 Bh8 Bg5 Qg7 Nd6 Nf6 Qd4
3q1nNb/rp1b2q1/2b5/4k3/nKN1BRb1/1RBQBp1r/2qR2b1/N2R2n1 b - - 0 1 illegal: No possible last move
r1r1N1N1/pB1B1bk1/8/pK1R1b2/2n4b/1Rb2Q2/2qRbq1N/B1Rn2rq b - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 cxd4 a5 e5 a6 exf4 Nf3 bxa6 Ng1 a5 Kd2 d5 Kd3 g5 h4 f5 c4 Kf7 e4 g3 b4 g2 h5 f3 e5 f2 c5 g4 e6+ Kg7 b5 f4 b6 g3 c6 f3 e7 Qc7 e8R Bb4 b7 Bc3 Re6 Nh6 Be3 Ng4 Ra2 Nd7 b8R Nb6 Na3 Nc4 Re5 Qf7 Be2 f1Q c7 f2 Nf3 g1R Rd2 g2 Rb3 Rf8 Bf4 Nge3 Nb5 Rh8 Nd6 Bf5+ Ne4 Qe1 c8B f1B Bd7 Rhc8 Nh2 Qf2 Bg5 Qg6 Be7 Qc6 Ba3 Qb7 Bb2 Qc7 Ba1 Qb7 Qc1 Nd1 Qa3 Qc6 Kc2 Qg6 Bf3 Be2 h6+ Kg8 h7+ Kg7 h8N d3+ Kb1 d4 Ka2 Qc6 Ng6 Qc7 Rc2 d2 Nf6 d3 Bb7 Bh5 Ne7 Bf7 Neg8 Qc6 Rcb2 Qa4 Rbb5 Qc2 Rb3 Nde3 Qe7 Rb1 Nf3 d1Q Rh8 d2 Rh1 Qcc1 Rd5 Qdg1 Qe4 d1B Qf4 Be2 Rbd2 Qh2 Re1 Qh1 Nh2 Qd1 Qf3 Qc2+ Bb2 g1B Red1 Qg3 Rf1 Bf2 Ne8+ Kh8 Rg1 Qgg2 Re1 Bh4 Rf1 Qf2 Rfd1 Nb6 Ka3 Nbc4+ Ka4 Rc1 Kb5 Ra1 R2d4 Rb1 Ba1 Kh7 R1d3 Rg1 Rd1 Kg6 Rc1 Nd1 Rd2 Kh7 Nd6 Kg7 Ne8+
2NB1q2/2R1qB2/6K1/knrp2Nn/4Rq2/rnbRpB2/3Br3/2NbnQb1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc7 g4 Kb6 c5+ Ka5 g5 e5 f5 b5 f6 e3 Kd3 h3 c6 e4+ Ke2 b3 f7 h4 g6 h2 g7 h3 c7 d3+ Ke1 b2 Qc2 b4 Qf2 e2 Kd2 e1B+ Ke3 b3 Kf4 d2 Ke5 d1N Bb5 Bg4 c8R Nc3 Rc5 Nd7+ Kf4 Ngf6 Kg5 Qe7 g8N Bd1 Rc7 Nc5 Ne2 Nd3 Nd2 b1Q Ra3 b2 Nf3 Nh5+ Kg6 e3 Qf1 Bg7 f8B Bf2 Rg1 h1Q Rg4 h2 Re4 Ne1 Bd2 Bg1 Ng5 Qf3 Nc1 h1R Be2 Qf4 Bf3 Rh2 Rb3 Bd4 Bh6 Qef8 Ne7 Re2 Nc8 Qd3 Bg7 b1N Bf6 Qc4 Be7 Qb4 Bd8 Nb5 Rbc3 Qbe7 Rd3+ Ka6 a5 Be5 Bc3 Nd2 Bb4 Nb3 Bc3 Na7 Bd2 Kb5 a6 Bc3 Rb4+ Ka5 Re4 Nb5 a7 Rb8 a8B Rh7 Bc6 Ra8 Bd7 Ra6+ Be6 Rc6 Re5 Rc5 Bf7 Rg7+ Kh6 Rg6+ Kh7 Ra6 Re6 Kb4 Kg6 Ra3 Re5 Ka5 Re4
1K3B2/1NN2Q1r/b4RBb/bpB3n1/1b1r4/1p2n3/1kBr3R/qRN2qnq b - - 0 1 illegal: No possible last move
1qR1QR2/2R3nB/1n3pqB/rb1k1N1B/R3r2r/1nKp1q2/4b2b/1N1Nn3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 g4 Ke6 c4 d5 e4 b5 a4 h5 g5 f3 a5 b3 e5 b4 c5 d3 c6 b2 g6 f6 c7 f2 a6 b3 g7 h3 a7 d4 Ra4 h2 Bg2 f1Q Ra6+ Bd6 Bf3 h4 Ra1 h3 Bh5 Ne7 g8R Nd7 Nc3 b1Q Na4 b2 Qe1 Kd5 e6 Nf5 e7 Ng7 e8B Ba6 c8R Qf3 Qg3 Bb5 Qg2 Nb6 Bhg6 Rh4 Rf8 Re4 Qe2 Bg3 Rc7 Qb8 Bh7 Be5 Bh5 Bd6 Kd1 d2 Ra3 Qbd3 Ra2 b1N Nb2 Rh4 Ra6 Qg6 Ra4 Re4 Kc2 d1N Be3 Nd2 Bh6 Nf2 Nd1 Nd3 Qe1 Bf4 Ne2 Nb3 Ng3 Be5 Rg1 h1B Nf5 Bh2 Qe2 Ne1+ Kb2 d3 Kc3 Rg4 Qe8 Re4 Rf1 Bg2 Rf2 Bf1 Rc2 Bf4 Rc1 h2 Rc8 h1R Rc7 Rh4 Rc8 Qd6 Rc2 Rb8 a8N Bh2 Rc1 Be2 Nc7+ Kc5 Rc2 Ra8 Nd5+ Qc7 Nd5e3 Ra5 Nc4 Kd5 Rc1 Qcg3 Na3 Qb8 Nb1 Qgg4 Kb2 Qg5 R1c7 Qg6 Kc3
2b2Bn1/2q3Bq/Bp6/nN1n2rN/b2Np1R1/1RbrnR1K/3qQ3/r1R4k b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 f4 Kf6 Kf2 d5 Kg2 h5 a4 e5 c4 d3 g5+ Kf5 a5 b6 g6 e3 c5 Ke4 a6 h3+ Kg3 h2 f5 d2 f6 b3 f7 b2 a7 d4 g7 h4+ Kg2 e2 c6 e1Q c7 d3 Qa4+ Bb4 f8B d1R Be7 d2 Bd6 Nc6 Nf3 Rh5 Bf8 Na5 Rg1 h1B+ Kh2 h3 Nd4 Bc3 Qa2 Rg5 Na3 b1N Ba6 Kf4 Qc2 Bc6 Bb2 Ba4 Nab5 e4 Ra3 Ke3 Rg3+ Kf2 Rg4 Qe2 Ba1 Kf1+ Kg3 Kg1 Rb3 h2 Kh3+ Kh1 Bb2 Re1 Qd3 d1N Qe3 Rb8 a8R Qd2 Qe2 Ne3 Ra7 Ra8 Ba1 Rd1 Bb2 Bb7 c8R Qe7 Rc5 Bc8 Rf5 Qc7 Rf3 Nd5 Ba1 Na3 Rb7 Nc2 Rb8 Nge7 g8N Nce3 Nf6 Ng8 Rb7 Qc1 Nh5 Rd3 Ra7 Qd2 Rb7 Qe5 Rg7 Qc7 Rg6 Ra7 Rc6 Bb2 Nf6 Nac4 Bb7 Ra8 Nf5 Ra5 Rb4 Bd1 Kh4 Be5 Bc3 Ra1 Ba6 Ba4 Rb3 Na5 Bb2 Bd4 Rc2 Be5 Nh5 Bg7 Nf4 Bh8 Kg3 Kg1 Bd4 h1Q Be5 Qhh7 Nh5 Bf6 Kh3+ Kh1 Bc3 Be7 Bcg7 Bb4 Nfd4 Bc3 Rc1+
B4RN1/K5B1/bnrn2R1/2pNpNRq/1b3bQq/3b1R2/b1r2b1B/1k2b3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kg6 d4 Kf5 a4 e5 h4 b5 f4 g5 h5 c3 d5 g3 d6 b3 h6 g2 a5 b2 h7 b4 d7 g4 a6 b3 a7 c2 Ba6 g3 Qf1 Nh6 Qf3 Nf7 Nc3 b1B Nge2 b2 Nd5 Qh4 d8N Nd7 Ra3 Nb6 Rg1 Ba2 Bb7 b1B Nc6 Nd6 Ra6 Rg8 h8B Rg6 Bg7 Rf6 Kd2 e3+ Kd3 Qh5 Rf1 g1Q Qg2 Be7 Rf3 Qe1 Qg1 Rb8 a8R g2 R8a7 Rh6 Ba8 Qeh4 Qd1 g1B Ng3+ Kg6 Kc3 e2 Kb4 Bf2 Ka5 e1B+ Bd2 c1B Nf5 Bf8 Qe2 Bd3 Nce7+ Kh7 Ng8 Kg6 Qe4 Bb7 Qb4 Rc8 Qa4 Nd7 Rc6 Bba6 Qb4 Nb6 Be3 Bg3 Bg1 Bgf2 Bh2 Bce3 Nd4 B3d2 f5+ Kg5 f6 Bf4 f7 Re6 Nb3 Kf5 Nd4+ Ke4 Nf5+ Bdc4 Nde3 Kd3 Nd5+ Kc2 Rb7 Be7 f8R Rg6 Nc3 Bd3 Nd5+ Bc5 Rb8 Rg2 Rb7 Rd2 Qd4 Kb1 Qg1 Bf2 Qg4 Nb5 Rg6 Rc2+ Nb4 c6 Rg5 Bec5 Re7 Nd6 Re6 Bcd4 Reg6 c5 Bh6 Rc6 Bg7 Rd2 Nd5 Bb2 Rgf6 Ba3 Rfg6 Rc2+ Nb4 B6c4 Rc8 Nb5 Ka6 Nd6+ Ka7 Ba6 Nd5 Bab4 Rf8
1q2bbNn/3RN3/q3R2p/2Brb1b1/Qb2B3/BK1n1pR1/Rb1r4/k1N3q1 b - - 0 1 illegal: No possible last move
1n1k2n1/2n2KR1/1b1qrBR1/4r1Rn/1Q2N2B/1n1b1NN1/pr5p/2NB1r1n b - - 0 1 illegal: No possible last move
3N4/1K1p1R1q/1bnB1k2/4N3/b2b3b/1rnN1rRN/p4Bb1/bb1QbBR1 b - - 0 1 illegal: No proof kernel
4n2r/1qq2p2/3RB3/Q2p2b1/3N1nrN/K4bBB/1nq1Rpr1/N1k1RR1b b - - 0 1 illegal: No possible last move
bbK2k1N/qr2p3/1QN1r3/qnp1Bp2/1R2R3/B2n2BB/1Nn5/r3Rbq1 b - - 0 1 illegal: No proof kernel
N1nbK1N1/2rnn2r/2B1B1R1/1qpNB2r/2b2nBn/pk6/2p5/1R2Q1Rb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 Kb4 d4 h5 g4 f5 e4 c5 b3 a5 d5 h3 g5 f3 g6 c3 d6 c2 g7 h4 d7 f2 Ke6 f4 Kf7 a3 e5 h2 e6 a2 e7 f3 e8B a4 Nd2 h3 Rb1 a1R Bb2 a3 Ba6 f1N Qe2 f2 Be5 Qa5 d8R Be6+ Kg6 Ne3 Bc8 f1N Rd3 Bc4 Bg4 Nd5 Kf7 Be7 Qe1 Bd8 Ne2 Nge7 g8B Nd7 Nc3 Rc8 Rg1 h1B Nde4 h2 Rdg3 Nd2 Nf6 Qb5 R3g2 Nf4+ Ncd5+ Ka5 b4+ Ka4 Rg3 Rh5 R3g2 Nf3 Rg3 Qb6 b5 Nh4 R3g2 Qa5 b6 Qb5 b7 Rc7 b8N Nc8 Na6 Bf1 Rd1 Kb3 Rc1 Bc4 Rd1 Rb7 Nc7 Ra7 Na8 Rc7 Bh7 Rb1 Bhf5 Rb2 Ra1 Rb1 Be6 Rd1 Nb4 Rd5 Ng8 Rh7+ Bg7 Re5 Nd5 Reh5 Rg3+ Bf3 R3g2 h1N Rc1 Ng3 Ra1 R7h6 Be5 Ngf5 Rd1 Nfe7 Rb1+ Ka2 Rg3 Bh1 R3g2 Nf8 Bc6 Rh7+ Ke8 Nd7 Rf2 Nh3 Rf6 Nf4 Rc1 Kb3 Rg6 Rg5 Ra1 Rgh5 Rb1+
1nr1Bk1K/3p3b/1q1nN3/2Q2R2/B2Rn2N/rbp5/R1N2p1b/r1Rnn1B1 b - - 0 1 illegal: No possible last move
3Q1bqB/3n1B1q/2RB2R1/k3q2n/1rN1pp2/2q2N2/rR2bKp1/1N1qrB2 b - - 0 1 illegal: No proof kernel
1r2NrBR/k6N/1Q5R/rn1r1n2/p4R1b/pbq1pK2/3r4/b1qNBB1N b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 e5 g4 h5 b4 a5 f4 d5 c4 Kd7 b5 Kc7 c5 Kb7 c6+ Ka7 g5 d3+ Kf2 h3 c7 h2 f5 d2 g6 a3 g7 d4 f6 a4 f7 h4 Bc4 d3 Kg2 e3 Qe1 d1R Bd2 e2 Ba2 h3+ Kf2 e4 Bb3 e3+ Kg3 Be6 c8R Nh6 g8B Bg7 f8N Qd4 Nc3 Na6 Kf3 Rb8 Nh7 Nc7 Bc4 Nf5 Qf2 e1B Nge2 Qc5 Ng3 Bd4 Rf1 h1R Rb1 Rg1 Nh1 h2 Rb2 Rg5 b6+ Kb7 Qh4 Nb5 Qh6 Bh4 Be1 Rd2 Nd1 Bg7 Rb1 Ba1 Rc1 Ka6 b7 Ka7 Rc6 Rf8 b8N Qe5 Rd6 Qc3 Nd7 Bf7 Ndf6 Rb8 Ba2 Bb3 Ne8 Rh5 Bc4 Rf8 Bg8 Bc2 Bac4 Bb3 Nhf2 h1R Qg6 Rg1 Nh1 Rg4 Qf6 Rd4 Qd8 Rd5 Rh6 Rh2 Rf2 d2 Bf1 Rg5 Ke4 Rhg2 Rf4 Rh2 Kf3 Re2 Nb2 d1Q Rc2 Qdd2 Nd1 Qc1 Qd6 Red2 Qb4 Qf6 Rc8 Qfc3 Qd6 Rh5 Qb6+ Ka8 Qc5 Rd8 Rcc6 Ng7 Rhg6 Na7 Qb6 Ra5 Nhf6 Nb5 Rc5 R8d3 Rh5 Nf5 Rh8 Rd4 Nh7 Rd5 Qe6 Kb7 Rh6 Ka7 Qb6+
n1rn1NR1/RB6/1qp3q1/1BBbR1b1/1bpQr1N1/5Rb1/1q4p1/kN4Kb b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 a4 Kf7 d4 Kf6 f4 e5 Kf2 g5 h4 b5 a5 e3+ Kg2 e4 d5 g3 h5 b3 h6 b4 h7 e2 d6 e1B f5 Ke5 f6 g4 d7 c6 f7 e3 a6 e2 a7 b2 Rh2 b3 Ra6 Qb6 d8R Be7 f8N Be6 Ra5+ Bd5+ Nf3+ Ke4 Qd2 Nd7 Rc8 Bg5 Ng6 Nh6 Rb8 Nf7 Nfh4 Nd8 Rh3 Re8 Kh1 g2+ Kh2 Re7 Rf3 g3+ Kh3 g1Q Rb7 Rc8 a8B Qgd4 Qd1 Bb4 Kg2 e1B h8R Qd2+ Kh1 Kd4 Rba7 Re4 Ng2 Qd3 Ne3 Bf2 Na3 Kc3 Be2 b1B Bb7 b2 Ng4 Bc2 Bf4 b1Q Bd6 Kb2 Nf8 Ka1 Bc5 Qb3 Kg2 Qb2 Qd4 Bd3 Bd1 Be2 Rf5 Bf3+ Kf1 Bfe1 Rg8 Bh1 Ba4 g2+ Kg1 Bg3+ Rf1 Nf6 Bb5 Ne8 Ne6 Nc7 Nf8 Bbe1 Rf3 Na8 Ra4 Qd3 Rb4 Bed2 Rb3 Qc2 Rbe3 Bb4 Re2 Re7 Re5 Qg6 Ref5 Re3 Re5 Re4 Nb1+
1k1b2BB/3BRRR1/1b1rnp1b/bK1Q2qN/p3N3/bNb2b1B/3r1p2/5n2 b - - 0 1 illegal: No proof kernel
N1n5/r2N2B1/n1pRr3/3pp3/Nn1nq2B/nR3n1K/1bNk1Q2/nBR4b b - - 0 1 illegal: No proof kernel
B2R1nNr/b2n4/1R4qB/5NBN/1Kp1rb2/2Qk1pRp/r4q1b/2q1R2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Ke6 e4 Ke5 d3 Kd4 Kd2 h5 b5 c5 e5 a5 g5 f5 g6 f3 e6 h3 g7 f4 b6 f2 b7 h4 e7 a3 e8R a4 Be2 f1Q Qc2 h2 Ra2 h3 Re7 Qb6 Re6 Nf6 g8R Nh7 Rg3 Bd6 Bf3 Nf8 Nc3 Nbd7 b8N Bb7 Nd1 Be5 Rb2 a2 Re8 a1Q Rd8 a3 Ne3 Qg6 Rb6 a2 Qb2+ c3+ Kc2 c4 Nc6+ Kc5 Nf5 Qf2+ Ne2 Ra4 Re1 h1R Nce7 Be4 Rd1 Re1 Ng8 Bb8 Bg2 Ba7 Qb3 Bf3 d4+ Kd5 Qb2 Ke4 d5 Ra6 d6 Ra5 Bf1 Bg2 Qb4 f3 Bh6 Bh1 Qa3 Qg1 Nf4 Re3 Be2 Qf2 Nh5 Ra6 Rdg1 Qaf1 Qc1 a1B Qe1 Bb2 Qd2 Ra2 Bd3+ Ke5 Be4 Re2 Bc6 Re4 Ba8 Bc1+ Kb1 Q1e1 Qb2 Bf4+ Qc1 Qed2 Re1 Qde3 Qd2 c2+ Kc1 Ra5 Kb2 c1B+ Kb1 Ba3 Ka2 Ra4 Qc2 Bc5+ Kb2 Qc1+ Kc3 Bce3 Nfe7 Ra1 Kb4 Kd4 Qb2+ Kd3 Nf5 Ra2 Qf6 Ne5 d7 Bb8 Re8 Bc7 d8B Ned7 Qb2 Bb8 Bdg5 Ba7 Qg7 Bc7 Rd8 Bef4 Rg2 Bh2 Rg3 Bf4 Qc3+
n3QK1N/1nbr2rR/5n2/1r1N2N1/1BppB2k/2Rq1B2/2bpqN2/3Rn1q1 b - - 0 1 illegal: No proof kernel
1kRq1Bn1/1q3RrN/1r1Q4/1p1R1B2/p1RpN1b1/6q1/1K3b1N/Bnnb1q2 b - - 0 1 illegal: No proof kernel
1n4B1/B2R2kb/2p2bp1/1q2Nn1r/n2p2K1/1q1rq1bN/2BR2B1/QR1N2q1 b - - 0 1 illegal: No proof kernel
1K3n2/3B1pb1/5n2/qbNn2qQ/Rk3pqB/4Np2/2r1B2N/R1rrnBR1 b - - 0 1 illegal: No proof kernel
b3qRr1/R3p1N1/1N1r1kb1/1nBB4/1q1Rp2N/1b4pK/4R1Bb/1Q1nr1q1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 c4 d5 f4 g5 Kf2 b5 Kg2 g3 h4 b3 c5 b4 a5 d3 a6 d4 h5 d2 h6 g4 c6 d3 c7 b2 a7 b3 h7 Na6 f5 Bg7 f6 Bb7 c8R Nh6 Qf3 d1B Bg5 d2 Be2 Nc7 Na3 b1Q Be3 b2 Nc4 Bb3 Nb6 d1B Bf1 Rg8 h8R Nf5 R1h2 Nb5 Rc4 Qe8 Bc5 Rd8 a8B Rd6 Qd3 Kg6 f7 Be5 f8N+ Kf6 Nf3 Ne3+ Kh1 Be2 Nh4 Nd1 Ne6 g2+ Kg1 Bf4 Rd4 Bg3 Qc2 Bec4 Ng7 Bf7 Ra7 Bg6 Rh3 Be5 Rg3 Bf4 Kh2 g1R Bh3 Re1 Bg2 Qa1 Qc1 b1Q Qc2 Qa4 Qd3 Qba1 Qb1 Bc6 Bb7 Qb4 Ba8 Bd7 Bd5 Bc6 Rd2 Ba8 Rd4 Bc1 Rgd3 g3+ Kh3 Be3 Rd2 Bg1 Re2 Bh2 Qa2 Qc1 Qb2 Qe3 Qb1 Qg1 Be6 Rf8 Bf7 Rg8 Ne6 Rg7 Rf8 Rg8 Ng7 Qf1 Rd7 Qf2 Ra7 Qg1 Bd5+
n1r5/1bpkbRN1/4r2N/4p3/1r1q1qp1/K2NbQqb/1RBN1B1n/1B4R1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 g5 d4 b5 Kd2 e5 Kc2 b3+ Kb2 b4 a4 e3 h4 g3 f5 g4 a5 g2 f6 e2 a6 e1Q h5 Nh6 f7+ Kd7 a7 Qg3 d5 Bb7 d6 Nf5 h6 Nh4 h7 Be7 f8R Nf3 Ne2 g1B Nd2 Nh2 Nf4 Be3 Rf7 Re8 h8N Bg2 Bd3 Bh3 Rb1 c3+ Ka1 b2+ Ka2 c2 Rg1 b3+ Ka3 Qf2 Qf3 Qg3 Ra1 b1R Ra2 b2 Be4 Nc6 Nd3 Rc8 a8B Nb4 Bh7 Nd5 Bg6 Nb6 Bae4 Ra1 Bh7 b1B Bb2 Bh6 Bd4 Na8 Bf2 Be3 Bhg6 Rb8 Bh7 Rb2 Bhg6 c1Q Bh7 Bc2 Bhg6 Rab1 Bh7 Rb4+ Rb2 Ba4 Beg6 Bc6 Be4 Ke6 d7 Bb7 Bhg6 Qc4 Bh7 Qd4 Bhg6 Qb8 d8N+ Kd7 Ne6 Rc8 Ng7 Rd1 Rf5 Rc1 Nf7 Rc6 Nh6 Re6 Rf7 Qf4 Nc1 Qg3 Bb1 Qdf4 Bgc2 Qa7+ Ba4+ Bc6 Nd3 Qad4 Bb3 Bb7 B3c2
2KQ1Nn1/2p2R2/4nBrb/RB1p1N1N/qpq2qbk/4R3/3r1b2/n2q2NB b - - 0 1 illegal: No possible last move
4nN1r/pnrrN1Q1/2R2Bqk/2B2n2/B4bp1/1KNq3n/1p4bR/R2B2b1 b - - 0 1 illegal: No proof kernel
r1NkRRr1/q2p2pK/3br1BB/4p2B/2r3n1/1nN1n1N1/5Rbr/4B1Qr b - - 0 1 illegal: No possible last move
b1NRq1b1/N3bRbN/2qr2kB/3Rnn2/2b2p2/p2bQ3/3pBB1K/Br6 b - - 0 1 illegal: No proof kernel
qn1B3N/nnR5/1rNb1bp1/R3N2n/1bp2p1n/B5r1/1R2B2Q/kB1b1K2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Ke6 e4 c5 h4 b5 e5 Kd5 h5 f5 h6 b3 h7 c3 e6 g6 a5 c4 e7 f3 e8R c2 a6 b2 a7 f2+ Ke2 f4 Re4 b4 Na3 b1N Qd3 g3 Rh3 g2 Re6 b3 Ree3 b2 Rh1 Bg4+ Rf3 Bb4 Qb3 Nd2 Qa2 b1N Bb2 c1B Rh6 Nb3 Nh3 g1B Bg2 f1N Nf2 Nb1d2 Nc2 Na5 Ke1 Ne7 Ba3 Nc8 Nd3 Ng3 Ne5 Nh5 Rb3+ Nf3+ Kf1 Nb7 Rb2 Qa5 Bh3 Nh4 Bg2+ Bf3 Bh1 Rf8 h8N Rf6 Rh7 Rb6 Rc7 Bcd2 Bg2 Bd6 Nb4+ Ke4 d5 Kd4 Bh1 Kc3 Nbc6 Bd1 Be4 Bd4 Bb1 Qa6 Nef7 Bf6 Nfe5 Bde7 d6 Qa5 d7 Bd6 Rb5 Be1 Qh2 Bd2 Bb4+ Kb2 d8B Qa4 Ra3 Qa6 Rb3+ Ka1 Ba3 B2b4 Ra5 Nd7 Rc5 Rb8 a8B Na7 Rb2 Qa5 Be7 Re8 Rb5 Nb8 Bd8 Qa6 Ra5 Re6 Nef7 Re3 Nfe5 Rg3 Ne7 Nc5 Bf3 Qb7 Be2 Qa8 N7c6 Nb7 Bbd3 Nd7 Be4 Nb8 Bb1
KN1NqB2/2R3p1/2r1Qb1r/3B3k/2RqpB2/3qN1pn/bN4qR/n1q3q1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Kg6 h4 e5 f4 b5 a4 d5 c5 d3+ Ke3 d2 c6 b3 c7 b4 a5 g3 a6 b2 a7 b3 Ne2 Nh6 f5+ Kh5 f6 Be6 c8R Qe8 f7 Na6 Bg2 Nb4 Ra4 Be7 f8B Nf7 Nbc3 b1Q Rc7 b2 Qe1 d1Q Rh2 Ng5 Nd4 Qbc2 Nf5 Rc8 a8N b1Q Nb6 Nh3 Nd7 Bf6 Nb8 Rh6 Bh1 Qg4 Nd1 Qg2 Nb2 Qbc2 Bd2 Qc1 Qe2 Bf7 Qa6 Qgd1 Qe6 Qdc2 Raa7 Q2d1 Rc4 Rc6 Rd7 Nd3 Rc7 Nc5 Rb4 Nb3 Rc4 Kg4 h5 Na1 Bb4 Rh7 h6 Kh5 Bf8 Rh8 h7 Qdc2 Nd1 Qa4 Nf2 d4+ Ke2 Qa7 Rb4 e3 Kd3 Bg6 Nd1 e2 Bh6 e1Q Rc4 Qgf2 Bd5 Qg2 Nb2 Qeg1 Bd2 Rg8 h8N Qb6 Nf7 Rh8 Rc3 Rh6 Bf4 Qc5 Nd8 Qa7 Bc5 Bh7 Kc4 d3 Kb5 d2 Bb4 d1Q Bf8 Qad4 Ne3 Bb1 Rc4 e4 Ka5 Ba2 Kb5 Rc5+ Ka6 Q1d3 Ka7 Rc6+ Ka8
2r1q3/B3b2B/r1Nq1bbn/k1Nq2RR/pR4pq/6R1/n2bNK1p/B5Q1 b - - 0 1 illegal: No proof kernel
1q1r1qB1/n1N1b1r1/b7/1p2N1p1/Rqn1Q3/N1qpB3/n1RnR2K/2k1B1B1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 Kg6 Kf2 Kf5 Kg3 d5 h4 e5 c4 g5 h5 b5 c5 d3 a5 e3 h6 Ke4 f5 d2 c6 e2 h7 Ke3 f6 e1Q+ Kh2 b3 a6 b2 c7 e4 a7 g3+ Kg2 d4 f7 d3 Rh5 Nh6 Qc2 Rg8 h8B Ng4 Rh4 Ne5 Ra6 Be7 f8B Rg7 Re6 Nbc6 Nf3 Nc4 Qa4 Ba6 Na3 b1N Ne5 Qb8 c8R Qf2+ Kh3 g2 Kh2 g1N+ Bg2 Nc3 Re8 Na2 Rf6 Qf1 Rf2 Qe1 Bh3 Qf1 Be6 Nf3+ Kg3 Qe1 Bg8 Qf1 Rg2 Qf2+ Kh3 Ke2 Rf4 d1Q Be3 Nfd2 Kh2 Qb3 Rh4 Kd1 Rg4 Bd8 Bfc5 Qf8 Bg1 Kc1 Bce3 Qc3 Rf2 Qb6 Re2 Rb8 a8N Be7 Nc7 Na7 Rgg2 Rc8 Rd8 Qb8 Rd4 Nb6 Rb4 Rd8 Rg4 Nc4 Rb2 Rd6 Bef2 e3 Be1 Rd8 Rh4 Nd6 Qe4 Qb4 Qf3 Qc3 Ra4 N6c4 Qb7 Rf7 Bf6 Rg7 Qe4 Qb4 Nf7 Qc3 Bd4 Qb4 Ne5 Qc3 Rg2 e2 Bde3 Qb4 Bh4 e1Q Re2 Qef1 Be1 Q1f6 Nf3 Qd4 Ne5 Qdc3 Rc2+
3r2R1/2Br1QBr/b2qbp2/1r2R1N1/4p2b/pknN1R2/1Rn2N2/q4bKB b - - 0 1 illegal: No proof kernel
n1RRNn1N/7p/RNB1Rn2/1p1BB1r1/r2bQ1q1/1p5b/3k1q2/2b1b1nK b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Ke6 a4 Kd5 g4 e5 Kg2 b5 a5 d3 c4+ Kd4 f5 d5 c5 h3+ Kh2 e3 g5 d2 g6 b3 g7 e2 a6 Kd3 a7 d4 c6 e4 c7 e3 f6 Bc5 f7 Qf8 Nf3 Nd7 Bg2 e1B Ra5 e2 Ra2 Ngf6 Ra5 Rg8 Ng5 Ke3 Kg1 d3 Bd5 h2+ Kg2 Bd4 Rf1 h1N Qc2 Nf2 Na3 Nh3 Kh1 Ng1 Bb2 d1N Ra6 Bd2 Re1 Nc3 Ba1 Qc5 f8R Na4 Rd8 Nab6 Nf7 Bc1 Nh8 d2 Qb1 d1Q Qe4+ Kd2 Bb2 Rb8 a8B Nf8 Bac6 Bh3 c8R Ra8 Ba1 Ra7 Bb2 Na8 Ba1 Be3 Be5 Bd4 Nc4+ Kc3 Rf1 e1B Nb6 Kd2 Rf4 Qcc2 Rh4 Qg4 Rh6 N6d7 Re6 Nf6 Qf3 Qcf5 Qe4 Qf2 Ng6 Rh8 g8N Rg7 Nh4 Rg5 Ng6 Ne8 Nf6 Rg8 Nh5 Nf6 Nh8 R8g6 Ng7 Rh6 Red6 Rh4 Re6 Bdb2 Qa4 Qd1 Qa1 Ra4 Qb1 Qg4 Ne8 Bd4 Qe4
3q4/1r2p3/br1RNn2/1Nprn1N1/1p4R1/4bNB1/1qrnBBRQ/n1k3K1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 g4 Kf6 a4 h5 f4 c5 Kf2 b5 a5 b3 f5 b2 d5 Ke5 a6 b4 d6 h3 d7 e3+ Ke1 Kf4 g5 h4 a7 c3 f6 h2 g6 h3 f7 c2 g7 Ba6 Bb5 Nf6 Kf1 Rh5 g8N Bh6 f8R Rd5 Be2 Nc6 Nc3 b1N Nf3 Ne5 Rg1 h1R Ra2 h2 Qd2 Rb8 a8N Rb7 Nc7 Bg5 Bb2 c1Q+ Kg2 Qc2 Nh6 Qc1 Ba1 Qb2 Nf7 Bh6 Qc2 Nd2 N3b5 Bg5 Rd1 Rf1 Rg8 h1R Qh7 Rh6 Qh8 Ke4 Ne6 Rf2+ Kg1 Rg6 Qh2 Rh6 Bc4 e2 Rg6 e1N Be2 Bf4 Rg4 Ke3 N7g5 Nc2 Nec7 Qb8 d8B Qa8 Nce6 Rg6 Bc7 Qd8 Bd3 Rh6 Bg6 Ke2 Bh5 Be3 Bd6 Qd4 Bb2 Na1 Bc7 Qc3 Bb8 Qb3 Bd4 Qb2 Bc7 Nd3 Bg3 Ne5 Rc1 Rg6 Rc3 Kd1 Rd3 Bf4 Be3 Kc1 Rd4 Re2 Bef2 Rh6 Bg6 Be3 Bd3 Nb1 Bc4 Rc2 Be2 Nd2 Rd3 Rd6 Rd5 Rh5 Rd3 Rdb6 Rd6 Nc6 Nf7 Rd5 N7g5 Ne5 Nfd4 Ndb3 Ndf3 Rc4 Bd3 Qb1 Re2 Rc2 Rd2 Bf4 Be1 Qb2 Rg2 Be3+ Bef2 Nd2 Be2
5qr1/RN2p1p1/nn6/RNB4K/B1bBn2N/n2q1Qb1/pbbr3R/Bk6 b - - 0 1 illegal: Other
1qn1nb2/8/qN1B2B1/1krbB3/p2Q1rbp/K4R1R/1p2Rp1N/n3Rn1N b - - 0 1 illegal: No proof kernel
3R1rN1/B5r1/qnb1B1p1/2Rqp3/bb1N3r/4K3/p1Np2BQ/2krNR1n b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Kg6 c4 Kf5 b4 e5 f4 a5 c5 d5 h5 a3 b5 e3 c6 Ke4 c7 a2 b6 d3+ Ke1 d2+ Ke2 d4 h6 g3 h7 g2 f5 a4 b7 a3 f6 Bb4 f7 Qd5 f8N Nf6 Nf3 g1R Rh6 Nh5 Bh3 Nd7 b8R Nb6 Bf1 Bd7 c8B Bc6 Be6 Rg3 Bg2 d3+ Kf1 e2+ Kf2 e1R Rd8 Rg6 Qc2 d1B Be3 Ng3 Bd4 Rh1 Ne1+ Kf4 Qe2 Bda4 Qh5 Rg4 Qh2 g6 Rh4 Rg8 h8N Rg7 Nf7 d2 Rh3 Rh4 Nh6 Rg1 Ng8 Rb8 Nf3 Ke4 Be3 Kd3 Ne1+ Kc4 Bd4 Kb3 Ke3 Nh1 Rf3 Ra8 Rf1 Rb8 Bc5 Kb2 Bd4+ Kc1 Bc5 Na8 Ba7 Rc8 Nh7 Nb6 Ng5 Rb8 Ngf3 Rc8 Nd4 Ra8 Rd7 Re8 Rd8 Rf8 Nc3+ Kb2 Rc1 a1Q Ncb5 a2 Rc4 Qd1 Nec2 Kc1 Ne1+ Qc2 Rc5 Qcc4 Rf2 Rf1 Ndc2 Rg1 Nbd4 Qa6 Nef3 Rd1 Nfe1 Rf5 Rf3 Rf8 Rf1
1bnq3b/N1N5/3kBp2/2R1pKRB/Nqqq1R2/R3Q3/n1rp1rp1/B2b4 b - - 0 1 illegal: No proof kernel
3qn1kb/2r2p2/1qNnB3/Q3r3/pqR3bR/pn2n3/Kp2N1BR/B3N2R b - - 0 1 illegal: No proof kernel
qQ1b3K/1N3pp1/RN1Nbp1n/r4q2/4p2N/1nBbb3/3rqR1R/1k3BB1 b - - 0 1 illegal: No proof kernel
2r5/Kp3b2/1B1b1BB1/1Q2Rpk1/n1N3r1/1pRNqp2/4rrbB/1nq1NR2 b - - 0 1 illegal: No proof kernel
1b1nq1R1/pp2N2N/n1kqb2r/2p2NB1/3q1q2/b2RRBp1/2RQ2KB/5r2 b - - 0 1 illegal: No proof kernel
1b1Br3/pN1pNB2/5n2/2R3bR/1Q1pRpb1/2bb4/2nrRBk1/qNK2b2 b - - 0 1 illegal: No proof kernel
1b5b/1B2r1kb/4B2p/KRn2bp1/p2N2q1/4r3/rRrpNB1B/Rn2Q2N b - - 0 1 illegal: No proof kernel
3q4/1NQ1B1q1/2p5/Kbn1N1r1/p3RB2/R3Nbb1/pR3kpp/nBn3rR b - - 0 1 illegal: No proof kernel
4B2n/pb6/r4Qb1/3q1NB1/5b1K/r2qppnp/1BRRpR2/kN1r1NR1 b - - 0 1 illegal: No possible last move
5R1Q/q1pN2K1/1b2R1N1/3p1qq1/q2k3n/3nNBQ1/2bB1N1n/1N2q1r1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 a4 b5 axb5 e5 Ra4 exf4 Ra3 Nf6 Ra1 Ng8 e4 axb4 d4 Bg7 c3 bxc3 d5 Ra6 e5 Re6 dxe6 Bf8 Ke2 Ke7 Kd3 f5 Kd4 d5 g4 h5 b6 h3 b7 h2 g5 h4 g6 c2 g7 h3 Ra2 f3 Bd2 c1Q Be3 f4 Bc4 f2 Bf1 f3 Qc2 Qe8 Qd3 Nd7 b8Q Nc5 Ra8 Nh6 Bg2 f1Q Bd2 f2 Qg3 Nd3 Bf3 Rg8 Qb2 Qfe1 Qc3 f1N Qa1 Kd8 e7+ Kd7 e6+ Kc6 Qb2 Qh5 e8N Qf5 e7 Qcd1 Nd6 Qa4+ Nc4 Qg5 e8N Nf5+ Kc3 Kc5 Ne3 Nh4 Nf6 Bf5 Re8 Qa7 Re6 Qd1 Qb8 Qda4 Qe8 Bh7 Qh5 Be4 Qh8 Be7 Nfg4 Bf8 Ne2 Bd6 Rg1 h1Q Nf2 h2 Nf4 Qf5 Rg2 Qg1 Ng6 h1Q Rh2 Rf8 Rg2 Nh2 g8N Rc8 Nf6 Rg8 Bd1 Rg7 Bf3 Qe1 Rg1 Qg2 Rf1 Be7 Qe5 Qgg5 Nd7+ Kb5 Qf4 Bc5 Qg3 Bb6 Nc4 Nc5 Kd4 Bd3 Bc1 Kb4 Ne3 Bc2 Bd2+ Kb3+ Bb4 Rh7 Re7 Qfg4+ Be4 Ng2 Nh1 Rf7 Re6 Nh4 Rf5 Rf6 Ke5 Rf8 Bd2 Qh3 Re8 Nd3+ Ke6 Qhf1 Re5 Rf7 Rf8 Rf6+ Ke7 Rf2+ Ke8 Rg2 Re6 Qff5 Nf2 Rg1 Bh1 Ne5 Bf3 Nd3 Rff6 Kb2 Kf8 Kb3 Kg8 Kb2 Rf8+ Kb3 Nf1 Kc4 Kg7 Kd4 Ne3
b7/p2bk3/1pb2BQ1/Qbb1N1K1/4QNQ1/QR5q/2RB1r2/qbq4r b - - 0 1 legal: proof: c4 g5 a4 c5 f4 e5 b4 exf4 h4 gxh4 e3 b6 a5 Nc6 a6 Na5 b5 Nb7 axb7 Ne7 d4 Nc6 Bd3 cxd4 Bc2 d3 bxc6 dxc2 c5 Qe7 Ra3 Qg5 Ra1 Qd8 Ke2 h5 Kf3 d5 b8B f5 g4 d4 e4 h3 c7 h4 e5 d3 c6 h2 e6 d2 e7 h3 g5 Qd7 g6 Qd6 g7 Qd7 Qe1 d1Q+ Ne2 Q1d4 Ra3 Qa1 Rg1 h1B+ Rg2 h2 Bd2 c1Q g8Q Qe6 Rc3 Bd7 Rb3 Qh6 Qeg3 Qh3 Na3 Rh4 Nc4 Rh6 Kf2 f3 Ke3 f2 Kf4 f1B Kg5 f4 Ne5 f3 Nf4 f2 Qd5 Ba6 Qa5 f1B Qd3 Bb5 Qe4 Bfd3 Qa3 Bb1 Qa5 Rd6 Re2 Bg4 c8Q+ Rd8 c7 Bgd7 Qca6 Bg2 c8Q h1B Qec4 Bgc6 Bc7 Bhd5 Qe4 Rb8 Rf2 Ba8 Qa3 Bd5c6 Q6a5 Qh2 Nfg6 Qh3 Nh4 Bf5 Bf4 Qhh1 Nhg6 Bh3 Qcf5 Rd1 Bd8 Qf3 Ra2 Rh1 Bd2 Qff1 Qff3 Bhd7 Rc2 Qh3 Qfg4 Bg7 Nc4 Bd4 Nce5 Bc5 Nc4 Kf7 e8Q+ Kg7 Q8e6 Rc8 Be7 Rf8 Nce5 Rf2 Qd6 Kg8 Nf4 Kg7 Bd8 Kg8 Qdg6+ Kf8 Qh7 Ke8 Bf6 Kf8 Qg7+ Ke8 Qgg6+ Kf8 Bh8 Ke7 Bf6+
6rr/nn1nQ3/K1k2R2/1n1r4/3NRp1Q/R1B4B/1pRn2r1/3qRN1q b - - 0 1 legal: proof: d4 e5 f4 exf4 b4 g5 b5 c5 b6 cxd4 Be3 axb6 Bd2 Bc5 Bc1 Bf8 h4 gxh4 a4 Ba3 a5 d6 Bxa3 Nc6 a6 Bh3 Bc1 Nb8 Nxh3 Qg5 Ng1 Qd8 Qd2 f3 g4 Kd7 e4 h5 c4 f5 a7 b5 c5 h3 g5 f4 g6 d5 g7 d3 e5 b4 Ra2 b5 Be2 f2+ Kd1 f1N Rb2 h4 Ke1 d4 Bh5 h2 Nh3 b3 Rc2 b4 Ng5 h3 Qe3 d2+ Ke2 Ng3+ Kd3 d1N Kc4 d3 Kb5 d2 Bg4+ Nf5 Bb2 Nc6 Re1 Nf6 g8Q h1R e6+ Kc7 e7 h2 e8R Rg1 Qd5 h1Q Bh3 Rg2 Qf2 Qd6 Qe5 Nd7 Qh4 Rd8 Re7 Rdg8 a8R Kb7 Ra3 Na7+ Ka5 Nc3 c6+ Kc7 Qg7 d1R R7e4 Ncb5 Ka6 Qd3 Be5+ Nfd6 Bc3 Nb7 Nd2 Qe2 Nf1 Rd5 Qe7 Qd1 Qeh7 Kd6 c7 Kc5 c8R+ Kd6 Ra8 Kc6 R1e2 b2 Rf8 b1N Ne6 b3 Rf6 b2 Qe7 Nd2 R2e3 Rdg5 Re1 Rd5 Nd4+
2nQ2nK/2QQ4/1Qb2B2/1nR2N2/q4rNR/1bB3q1/rqr1Q3/k1r1r1q1 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 Kd3 Ke7 Ke4 Kd6 Kf5 Kd5 Kg6 Kc4 h4 f1R e4 b5 a4 d5 e5 g3 f5 d3 a5 b3 e6 d4 c3 g2 e7 b4 e8Q f2 f6 b2 a6 b3 h5 d2 f7 d3 f8B Qd4 h6 Bb7 h7 Nd7 a7 Nb6 Qe5 Re1 Bb4 f1R Qd6 Rf4 Ra5 Qe5 Qc2 d1Q Ne2 Qd4 Rb5 d2 Ng3 Qe2 Re5 d1B Nf5 Qef2 Bd2 g1N Bc5 Ne2 Qe4 Rc8 a8Q Bc2 Qdb8 Rc6+ Kf7 g5 Kg7 g4 Be7 g3 Bf6 Qh2 Qf3 g2 Qh5 Kd3 c4 Nc3 c5 Qa4 Na3 b1R Nc4 Rbc1 Nce3 Nb5 Ba5 Rc8 c6 b2 c7 Bf3 Bb4 Bcd1 Ba5 Qh3 Bb4 b1Q Ba5 Qh4 Qe8 g1Q+ Ng4 Rd8 Rd5+ Kc2 Bac3 Qhg3 Rc5 Qbb3 Rh6 Rd2 c8Q Kb1 Nh4 Rfe4 Qd5 Ra2 Qcc7 Nc8 Qbb6 Qb2 Qed8 Ka1 Q5d7 Rf4 Rhh5 Nge7 Rh6 Re8 h8Q Bc6 Nf5 Bb3 Rh1 Re2 Qh2 Ng8 Kh8 Rec2 Qf2 Re6 Rh4 Ree1 Qe2
Q6R/2QQp2K/r3B1B1/2qQqQ2/n4b2/1q1r1r2/qq2kN1b/1R1nbN2 b - - 0 1 legal: proof: d4 a5 g4 c5 f4 cxd4 e4 f5 b4 fxe4 f5 axb4 Bf4 h6 Bg5 hxg5 Bd3 b6 Bf1 Ba6 f6 Bc4 Bg2 Be6 Bf1 Bf5 gxf5 Rh7 Nc3 Rh3 Nb1 Rh8 Kf2 Kf7 Kg3 d5 Kg4 d3 c4 b3 h4 d2 a4 b5 c5 b2 c6 b4 a5 b3 h5 e3 h6 e2 Kh5 e1B c7 d4 c8Q g4 a6 g5 a7 g3 h7 g2 Qdc1 d1R Rh4 g4 Qb7 g3 Qb5 d3 Rh1 d2 Qa4 Qd5 Rh4 Na6 Qc7 Nc5 Na3 b1Q Bc4 b2 Qe5 Nh6 Qa6 Ng4 Qa5 Na4 Qac7 Bh6 Nh3 g1B Nc2 g2 Ne3 Bh2 Nf1 Rhf8 h8Q g1Q Qe4 Qd4 Nf2 Qc5 Rh3 Qc1 Qd3 Ne3 Qg8+ Ke8 Qg4 b1Q Kg6 Qa2 Qb3 Qcb2 Rb1 Qdd6 Qd4 Rf7 Be6 Qde5 Qdd7+ Kf8 Rh5 Kg8 Rh4 Kh8 Rf4 Rff8 f7 Bg5 Rh4+ Bh6 Kh5 Kg7 Qbb7 Kf6 Qg2 Rab8 a8B Rb6 Be4 Ra6 Qh1 Rg8 Bd3 Rg3 Qhb7 Rf3 Bc2 Qed6 f8Q+ Ke5 Kg6 B6f4 Qfa8 Kd4 f6 Kc3 Rh8 Qe5 Qde8 Kd4 Kh7 Kc3 Bg6 Kd4 Ne4 Kd3 f7 Ke2 f8Q Rc1 Qcb8 d1Q Qed7 Rc3 Q8c7 Qdb3 Qbd5 Nd1 Qf5 Rcd3 Nf2
2K2b1n/3nrQR1/1Q4r1/bNRp3n/k2Rn1bN/B2q4/5bRn/2b1BR2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 f5 Kd3 g5 Kc4 a5 Kd5 a4 c4 f4 b4 g4 e4 f3 h4 a3 e5 a2 e6 f2 c5 f1N c6 d3 b6 d2 h5 Rh7 h6 Nh2 b5 Re7 Kd6 Nf6 h7 Ra6 h8B Nh5 Nf3 g1B c7 g2 Na3 g3 Qb3 d1N Bc3 Be3 Be1 g1N Nh4 Ne2 Rg1 Ndc3 Rg2 Nef4 Rb1 a1B Qd5 Ra5 b7 Ng6 b6 Nh8 Nb5 Ra6 Ba3 Bc1 Rb4 Bab2 Rd4 Bd2 Qb3 Bbc1 Qc4 Na2 Qd5 Ba5 Qc6 Nc3 Qc5 Nc6 b8R Ne5 Rb7 Ne4+ Kd5 Rh7 e7 d6 Qb4 Bg4 c8R Nd7 Rc5 Rg7 Kc6 Ra7 Rf2 g2 Rf1 g1B Rc7 Rg5 b7 Bf2 b8R Rg6 Qb3 Qc8 Rb6 Qa6 Rb7 d5+ Kc7 Bf4+ Kc8 Bc1 Nc3 Qc4 Nb5 Qd3 Rbc6 Kf7 Rcc7 Ke6 Rc2 Ke5 R7c5 Ke6 Nc7+ Kd6 e8Q Bg3 Rg2 Bf2 Rcb5+ Kc6 Qf7 Ng5 Rbb4 Ne4 Nb5 Re6 Ra4 Ra6 Rab4 Re7 Ra7 Kc5 Rc7+ Rc6 Rbc4+ Kb6 Qb4 Rg6 R4c5 Bd2 Qg8 Rf7 Na7+ Ka6 Rg3 Bc1 Rg2 Ndf6+ Nf5 Rfg7 Rf7 Nd7 Nh4 Re6 Qb2 Rgg6 Rg7 Re7 Qf7 Bc3 Rcc4 Ka5 Qb8 Bb4 Rc5+ Ka4 Nb5 Qc4 Rd3 Ba5 Qb6 Qc2 Rd4+ Qc4 Beb4 Qd3 Be1+
6nb/R3N1qb/BR1n3B/4r3/Q1B1kN2/q1B5/QnpKB1rn/n1n3r1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 d4 Kd7 g4 Ke6 e4 f5 b6 c5 b7 h5 g5 f3 d5+ Ke5 g6 b3 d6 f4 g7 b2 d7 f2+ Kd2 c3+ Kc2 f3 Ra7 h3 Ra3 c4 Ra4 h2 Bd2 h4 Bh6 h3 Ra3 Qg5 d8Q Nc6 Ra2 Nce7 Q8d3 Bf5 Nd2 b1N Qe1 Na3+ Kc1 c2 Ra1 Ra5 Qde2 Nc8 b8B+ Nd6 Bg2 f1R Bc7 f2 Bf3 Bh7 Q1d1 Kd4 Bg4 Re5 Ba5 Re1 Bc8 f1N Ba6 Be7 Rb1 Bf6 Rb6 Qg3 Nb1+ Qd3 Kb2 c1N Nc3 Nc2 Nd5 Na1 Qa4 Qa3+ Kb1 Rd1 Qa2 Re1 Bb4 c3 Ne7 Rd1 Be2 Rd2 Ba6 Rg2 Be2 Nab3 Kc2 Na1+ Kd1 c2+ Ke1 Rf5 e5 Ke4 e6 Re5 Nf3 Rg1 Nh4 Rg2 Rg1 h1N Nhg6 h2 Nf4 Nf2 Ba6 h1Q Bc3+ Qb4 Be2 Nh2 Kd2 Nfd3 Rf1 Nb2 Rf3 Nf5 Rd3 Qg1 Rd7 Nd6 Rdb7 Bh4 Ra7 Bf2 Ba6 Bd4+ Be2 Nf6 g8B Qa3 Bf7 Rc8 Q4b3 Ng8 Qa4 Rg7 Ba6 Re8 Bh5 Rg2+ Bhe2 Reg5 Ned5 Re5 e7 Rf8 e8B Rff5 Ne6 Rf1 Ne7 Rg3 Bd7 Ref5 Bb4 Bh8 Bec4 Re5 Nf4 Qg2+ Be2 Rg1 Bdb5 Rg7 Bc4 Qg6 Ne6 Qf7 Ba5 R7g2 Bc3 Qg7 Nf4
1B3q2/r4b1N/q2Nb1k1/3q2bR/3n1Q1p/b1BrBB1Q/5Bb1/1K1Rn1b1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h6 g5 hxg5 h3 Nc6 h4 Nb8 h5 Rh7 Qd3 Rh6 Qh3 Rh8 Qh4 gxh4 Kd1 g5 e4 f5 b4 Kf7 c4 a5 Kc2 d5 c5 g4 e5 g3 c6 f3 c7 g2 b6 d3+ Kb2 d2 b5 d1Q h6 f4 h7 f2 b7 f3 e6+ Kg6 b6 d4 e7 a4 Ra2 d3 Nh3 g1B Bf4 d2 Ka1 a3 Bb5 f1B Nf2 Nh6 e8Q+ Nf7 Bc6 Bg2 Qe5 Be6 c8Q Ra7 Nh3 f2 Be3 f1Q Ng5 Qa6 Bf3 Nc6 b8B Nd4 Qf4 Ne5 b7 Nd3 Bf2 Bf7 Qh3 Ne1 Rb2 a2 Rb5 Rg8 h8B Ba3 Nh7 Qf8 Rh5 Qb3 Bg7 d1B Nd2 Qd5 Nc4 Bb3 Nd6 Be6 Bf6 Rg7 Bc7 Rd7 b8B Ne2 Nb7 Qdd3 Rh2 Bf7 Rh1 Bh2 Bc5 Bbe6 Rf1 Bg1 Nd6 Qb3 Bcd8 Nd3 Rd1 Ne1 Ne8 Rd3 Bdb6 Qd5 Bc3 Qdd6 Bf2 Qd5 Bbe3 Nd4 Ba5 Be7 Bc3 Bg5 Kb2 a1B+ Kb1 Bb2 Nd6 Bc1 Qfh2 Ba3 Qf4
Q2b1nq1/4BQnb/Q1Q2pR1/3K2bR/5bQb/1B2r2q/1kn2b2/N3rN2 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 g4 h5 f4 hxg4 c3 dxc3 Qa4 exf4 Qb3 Bd6 Qd1 Bf8 Kf2 Ke7 e4 Ke6 h4 Ke5 b4 a5 b6 g5 b7 d5 b5 a4 h5 d4 b6 c2 h6 f6 h7 d3 Rh2 Kd4 e5 g3+ Kf3 d2 e6 g2 e7 g4+ Kf2 f3 e8Q a3 Qe7 a2 Qee2 Ne7 Qee1 Nd7 b8Q Nf5 b7 Ng7 Rh1 Be7 Qee2 Ra3 Rh4 Re3 Qg3 Re8 h8Q Nf8 b8Q Bf5 Rh2 Bh7 Ba3 c1B Qdb3 d1N+ Ke1 Qc8 Rh5 Bd8 Qf7 R8e5 Qh3 g3 Nd2 Kc3 Qb6 Re7 Bb4+ Kb2 Qc6 R7e5 Qg4 Re8 Nh3 g1B Nf4 g2 Ne6 Bh2 Be7 g1B Bg2 Bf4 Nc5 f2+ Kf1 Bg3 Bd5 Bh4 Kg2 Qe6 Ncb3 f1Q+ Kh1 Qc8 Qea6 Bgf2+ Kh2 Qd3 Kg2 Re1 Nf1 Bcg5 Be6 Ne3+ Kf3 Qa8 Rc1 a1B Rc5 Qc3 Rf5 Qc8 Ke4 Nc2+ Kd5 Qh3 Qhg8 Kb1 Qh8 Be5 Na1 Bef4 Rh6 Kb2 Rg6 Bh6 Rh5 B6g5 Kc4 Re3 Kc5 Qb8 Bb3 Re1+ Kd5 Qa8 Bc5 R8e3 Be7 Bdc7 Qac8 Nd7 Qhd8 Ba5 Q8b7 Bb6 Qdc7 Qg8 Qd8 Nf8 Qda8 Bd8 Qba6
BB1B2Qr/4RB1p/2qN2q1/2n1n3/2n2rk1/qQK4B/b1nR3b/2qN2q1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 Ke7 e4 Kf6 g4 Kg5 c4 f5 e5 d5 c5 h3 b6 b3 b7 f3 e6 f2 e7 h2 e8Q d3 c6 b2 c7 d4 Qb3 f4 Be2 f1Q Ra2 f3 Qea4 f2 Ra3 Qd6 Qa6 Nh6 Qb4 Nd7 b8B Nc5 Qba4 Be6 c8B Nf7 Qb6 Ne5 Qab3 Ra4 Nc3 b1Q Nd1 Qc6 Qa6 Bd6 Bf3 Qh3 Ra2 f1Q Ne2 Qg1 Qac4 Kh4 g5 Rb4 Bd5 Kg4 g6 Qhg3 g7 Qa1 Ra7 Qa3 Bb2 Bc7 Kc1 d2+ Kc2 Bd6 Be4 d3+ Kc3 Ra4 Qd5 Rd4 Bg2 Rf4 g8B Bc7 Bb7 Bf7 Bf1 Q3g2 Ba8 Qg6 Qd8 Q2c6 Bc1 Bd6 Re7 Bc7 Nd4 Be6 Nb2 d1N+ Kd2 Ne3 Bf7 Bc4 Nf5 Nc2 Kc3 d2 Qg8 Be6 Nd6 d1N+ Kd2 Nde3 Kc3 N3c4 Nd1 Rf5 Bg5 Rf4 Bg2 Bd5 Nb2 Qc1 Rd1 h1Q Rd2 Qhg1 Nd1 Nf3 Rd7 N4e3 Ne4 Rf5 Bd8 Bh2 Nd6 Rf4 Re7 Ne5 Bf1 Qa7 Qa4 Ba2 Qb4 N3c4 Qb3 Qaa3 Bh3+
8/n4nB1/3N1nr1/Qrp2qBB/1kr3N1/2qqRQ1b/r6B/1rq1B1KR b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 h5 Kf2 dxc6 Ke1 c5 Ba3 c4 Bb2 Qd5 Bc1 Qd8 g4 hxg4 a3 b5 Nf3 b3 Ne5 b2 Nf3 b4 Ng1 b3 Nc3 Bb4 axb4 Rh5 Nb1 Rh8 Kf2 Ke7 d4 Kd6 h4 g5 e4 f5 h5 c3 d5 f3 b5 Kc5 e5 f4 b6 g3+ Ke1 g2 Kf2 c2 d6 g4 d7 g3+ Ke1 f2+ Ke2 Qf6 d8B Ra2 b7 Bh3 h6 Kb4 e6 c5 e7 Qc3 e8Q Nc6 b8B Na7 h7 Nf6 Bd2 c1Q Nf3 g1R Ne5 g2 Na3 b1R Nac4 b2 Ng4 Rg8 h8B Rg6 Nge5 Rg4 Nd6 Rh4 Qg6 Rg4 Qd3 f3+ Ke3 Rc4 Be2 f1R Ng4 f2 Bg7 Re1 Kf3 f1Q+ Kg3 Qf2+ Kh2 Qf5 Qf3 Ref1 Qc2 Rf2 Be7 Ra5 Be1 Rb5 Qd1 Qcc2 Bd2 Nd5 Nf7 Rc1 Nge5 b1Q Qe4 Qg6 Bh5 Qf5 Qef3 Re2 Bh4 Nf6 Bdh6 Qce4 Qd8 Ra2 Bf2 Qbb2 Bg3 Rcf1 Re1 Qba3 Re2 Rb1 Be1 Qc1 Re3 Qd3 Bc7 Rg4 Bf4 Rg6 Bg5 Rf1 Qfa8 Rf4 Ng4 g1N+ Qg2 Rc4 Bcg3 Ne2 Nd6 Nf4 Kg1 Ne6 Qc7 Nd8 Qf3 Nf7 Bh2 Qa3 Qb6 Qc1 Qa5+
2b5/Rqbn3K/3QQ1B1/p2n1bbQ/3Qb1QR/2b5/k3qn1N/Br1N1n2 b - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 g5 f4 b5 f5 bxa4 f6 exf6 Rh2 f5 Rh3 Ra6 Rh1 Rg6 Nd2 fxg4 Nb1 g3 Qd2 g4 Qd1 Rg5 hxg5 Bd6 Qd2 Be7 Qd1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 f5+ Kf4 d5 e4 g2 b4 d3 c5 a3 b5 a2 b6 d4 g6 h4 b7 g3 c6 h3 c7 d2 e5 Kd5 e6 h2 g7 d3 e7 Kc4 Kg5 f4 Kg6 f3 e8Q f2 Nf3 g1N Ba3 g2 Bc1 Qd7 Ng5 Be7 Ba3 Nh3 Rg1 h1B Bb4 Nf6 g8Q+ Nd5 Qe1 Kb3 Qge6 d1B Qd2 Bc2 Nf3 Bg5 Nc3 Kb2 Be2 f1N Nh2 Nf2 Bh5 Qe7 Bc5 Nd7 Bd4 Qb4 b8Q Qb7 Re1 a1B Nd1+ Ka2 Re4 Bc3 Rh4 Rh7 Qde3 d2+ Qd3 Rf7 Be5 Rf4 Kh7 Rb4 Bg6 Rb1 Qd4 Bf5 Bh8 Ng3 Re1 g1B Ree4 Nf1 Ref4 Bd3 Rf7 Bhe4 Qg4 Bf5 Qe6 Bde4 Qh5 Qc6 Qbb4 Qb6 Qbd6 Qb7 Nb2 d1Q Rg7 Qe2 Nd1 Qbb2 Re7 Ba6 c8Q Qb7 Ng4 Bh2 Bf6 Bg3 Nh2 Qa7 Qcg8 Bc8 Bh8 Qb7 Qgg7 Bd3 Qdg4 B3f4 Qd4 Bde4 Nf3 Qa7 Qd2+ Bb2 Nh2 Nc5 Qb6 Bd6 Rc7 Nd7 Qc3 Qaa6 Ra7 Bc7 Qbd6 Qb7 Qg7 Bbc1 Qc3 Bcd2 Qcb4 Be1 Ba1 Bc3 Qd4
qR1K2BQ/2rn1QR1/4R2p/1B3b2/p2qR3/2N1R1rk/2nn2N1/2rbnq2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 b5 Be3 bxa4 Kd2 f3 Bf4 Be7 g6 Bg5 hxg5 exf4 Bg2 f2 Bh3 Nh6 Bf1 Ng8 Kd3 Ke7 Kc4 Ke6 Kb5 Kf5 b4 Kg4 e4+ f3 c4 f5 e5 a5 g7 d5 e6 f4 c5 h6 e7 a3 e8B d3 c6 d2 g6 a4 c7 a2 Kb6 d4 b5 d3 Qe1 d1B Rh5 d2 Nh3 Ne7 g8R Bf5 g7 Ra7 Nc3 Nec6 Qe7 Nd4 Bf7 Nc2 Re8 Ne1 Bg8 Nd7+ Kc6 Qb8 b6 Qa8+ b7 Kg3 Rc1 a1N c8Q Nac2 Bb5 f1R Kc7 f2 Kd8 f3 b8R Rc7 Nf4 Rh1 Qe6 f1Q Qf7 f2 Ng2 Rg1 Rg5+ Kh3 Rg4 Rh1 Rge4 Rg1 Nh4 Rg3 R8e6 Ng2 Ke8 Na1 Na2 Rc6 Rf4 Qg1 Rc3 f1N Qf8 Nb6 Bf7 Bh5 g8R d1Q Qd7 Rh7 Rfe4 Qdd4 Qc7 Ne1 Ng2 Bd1 Rce3 Rc1 Nc3 Nd2 Qe5 Qh1 Qh8 Qf1 Rg5 Rg7 Bg8 Rc7 Rg7 Nac2 Qf7 Nd7 Kd8
1R1rb2R/1k6/1rqrp2K/1brR4/2bQrQp1/nR1Nb3/4R3/1B1Bn2N b - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Kd2 a5 h4 d5 b4 Kd7 c4 Kc7 h5 e6 h6 e3+ Ke2 g4 c5 d3+ Ke1 e2 Kd2 e1R g7 d4 c6 f3 h7 f2 Na3 a4 Qf3 Qe8 Nb1 a3 Rh2 a2 Nc3 Nh6 g8B Ba6 Rd1 a1R Be2 f1B Na4 Nf7 Nb2 Rb1 Qf4+ Nd6 Nh3 Nd7 Nf2 Nc5 Nh1 Bh6 b6+ Kb8 b7 Bc4 b5 Ra5 Bf3 Re4 c7+ Ka7 b8R Qc6 Bf7 Rd8 b6+ Ka6 h8R Nb5 c8R Na3 b7 Rb5 Bg8 Rb6 Bh7 Rc1 Re2 Ka7 Ke1 d2+ Kf2 Nd3+ Kg3 Ne1 Kh4 d3 Kh5 Bg5 Qf6 Be3 Qd4 Rc3 Rb1 d1B Bf5 d2 Nd3 Bc2 Rb3 d1R Rc7 Bb5 Rd7 Rc5 Rd5 Ka6 Rh2 Rd2 Bd1 Ka7 Re2 Rd6 Rb4 Bca4 Rb3 Ka6 Rbe8 Rd8 b8Q Bc4 Qf4 Kb7 Kh6 Rd6 Rf2 Bcb5 Nc1 Bfc4 Re2 Re5 Bb1 Re4 Qc3 Rdd4 Nd3 Rd8 Rf5 R4d6 Qd4 Qc8 Ref8 Be8 Rh5 Bab5 Rd5 Qc6 Rf7+ Kb8 Rb7+ Kc8 Rb8+ Kc7 Rc8+ Kb7 Rb8+
2N3Q1/1K1b2R1/pn2Q3/4Nq2/kb1n2q1/Q1R3Qp/2B1Q1rq/1qqrq2B b - - 0 1 illegal: No possible last move
k7/3r1NK1/2pb1NnR/r1r2q2/QB1q2B1/1b1NrNN1/4Rpb1/2qr3Q b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 a5 b4 axb4 f5 e6 Qb3 exf5 Qd1 Nc6 Ba3 Nd4 Bc1 Ne6 Nc3 fxg4 Nb1 g3 Bh3 g4 Bf1 Ng5 hxg5 Qe7 Na3 Qf6 Nb1 Qd8 d4 Kd7 Kd2 Kc6 Ke3 h5 Kf4 f5 Ke5 b5 a4 Kb7 e4 b3 a5 c3 d5 h4 g6 b4 g7 c6 d6 b2 d7 h3 Bg2 c2 Bg5 c1Q Ra4 h2 Ne2 f4 Bf6 b3 Be7 f3 Ra2 f2 Nd2 b1Q Nf4 b2 Bf3 g2 Nd3 g1R Bb4 g3 Bg4 g2 Nf3 Ne7 Kf6 Rh3 g8N Ng6+ Ne7 Qbc2 e5 b1R e6 Kb8 Nfe1 Re3 a6 Rf1 Nf3 g1R a7+ Kb7 Bh3 Rg5 Bg4 Rc5 Qe1 Qb6 Nf5 Bd6 e7 Ra1 Rb2 Raa5 e8N Rb8 d8N+ Ka8 Nf7 Be6 Ng3 Bb3 Qd1 Rd8 Kg7 Rd7 Nf6 Q2b1 Re2 Qd8 Rg1 h1B Rg2 Rg1 Rh2 Bg2 Rh6 Rh1 Qg1 Qb6 Qh2 Rd1 Qh5 Qa6 Qh3 Qac4 Qh1 Qd4 Nb2 Qf5 Nd3 Kb7 a8Q+ Kb6 Qc8 Ka7 Qa6+ Kb8 Qb5+ Ka8 Qa4
Q1q3qq/n6k/q1Q1p1RN/2NqpnB1/qN5R/2rN3K/5N2/1B2rnb1 b - - 0 1 legal: proof: g4 a5 b4 axb4 e4 c5 d4 cxd4 f4 g5 e5 gxf4 Bd2 b6 Bc1 Bb7 e6 fxe6 h3 Bf3 g5 Bg4 hxg4 e5 Kf2 Kf7 Kg2 Kg7 c4 h5 a4 d5 c5 f3+ Kh3 f2 g6 b5 c6 b3 g5 d3 a5 d2 a6 h4 a7 d4 c7 e6 c8Q b2 Ne2 d3 Rh2 b4 Nf4 b3 Qe2 d1Q Qb7+ Ne7 Qee4 d2 Qb5 Qc8 Qc5 Nf5 Bd3 f1N Nc3 b1Q Na2 b2 Qcc6 Qa4 Nb4 Qba2 Bb1 d1Q Nfd3 Bc5 Qg2 Kg8 g7 Kh7 g8N Bg1 Nh6 Qdb3 Qh1 Qd5 Ng4 Qaa6 Rg2 Q2a4 Ngf2 Re8 Ra3 Re7 Rc3 Rc7 Rc4 Qg8 Qb5 Nc6 g6+ Kh8 g7+ Kh7 Rd4 Rac8 a8N Na7 Rgg4 Rc3 Rg6 R8c4 Rdg4 Re4 Nb6 Re1 Qc6 Qac8 Bg5 Qaa6 Ba2 b1Q Nd7 Qbb3 Bb1 Qba4 Rd4 Nh6 Nc5 Nf5 Kg4 h3 Qa8 h2 Kh3 Qge8 g8N Qf8 Nh6 Qg8 Qg2 h1Q+ Qh2 Qdd8 Rh4 Qhd5 Qh1 Qf6 Qe4 Qfh8 Qc4 Qb6 Qb5 Qba6 Qbc6
7N/N1p1q1Bb/2Nb2b1/R1b3r1/n1q1nq2/RBQ1k3/Q2N3p/qNbK4 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 h4 exf4 g3 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Na3 g4 Nb1 Rg5 hxg5 fxg3 e4 Kd7 d4 Kd6 a4 h5 d5 Kc5 d6 f5 a5 h4 e5 c3 e6 g2 g6 f4 e7 g3 e8N f3 g7 b3 a6 b4 d7 b2 a7 f2+ Ke2 h3 a8Q h2 Qd2 c2 Nf3 g1Q Nh4 b3 Ng2 Na6 Nh4 g2 Ra2 Bd6 Ra3 Qe7+ Qe4 Rh5 d8N Rg5 Nf7 Bf5 Qe6 Nf6 g8N Bg6 Nf3 Ne4 Qh3 Kc4 Ra5 Nac5 Nh8 Bh7 Ra3 Na4 Qc3+ Kd5 Nfd2 Bg6 Qc4+ Ke5 Qhc3+ Kf4 Nh6 Bh7 Nf5 Bg6 Nd4 Bh7 Kd3 Bg6 Be2 f1Q Nc6 Qc5 Qe6 Qff2 Bd1 g1B Qec4 Qh4 Ke2 Qh6 Qe6 Qc4+ Ke1 Bgc5 Rg1 Be5 Nd6 Bh7 Nc8 Bed6 N8a7 Qhf8 Qb4 Ke3 Rf1 Qff6 Rf5 Bg6 Re5 Qf4 Qf7 Bb6 Ra5 Bbc5 Nc3 b1Q Bb2 Qa2 Ncb1 c1B Bg7 Qa1 Bc2 Bh7 Kd1 Bg6 Ra2 b2 Bb3 Bh7 Ra3 Bg6 Nc3 b1B Qg8 Bd3 Ncb1 Bh7 Qc3 Nf6 Qc2 Bdg6 Qa2 Ne4 Qe8 Qd7 Qe5 Qe7 Qc3+
n2q2Q1/N3nq2/2Q4q/rr1q1BB1/2p4N/Br1R3n/RB1BKb1p/1k5n b - - 0 1 legal: proof: c4 d5 b4 dxc4 e4 f5 b5 fxe4 b6 axb6 Ke2 b5 Ke1 b4 h4 g5 a4 gxh4 Ne2 b5 Nf4 b3 Ne2 b4 Ng1 Be6 Ke2 Bd7 Ke1 Bb5 axb5 Ra5 Ba3 Ra7 Bc1 Ra8 g4 Kf7 f4 Ke6 d4 Kd5 b6 c5 b7 h5 g5 e5 g6 h3 g7 h4 f5 c3 f6 b2 f7 b3 Ra7 c2 Bd2 c1Q Ba5 e3 Bg2+ Kc4 d5 e2 d6 e4 d7 h2 Bf3 h3 Nc3 b1Q Bg2 b2 Bf1 Na6 b8B Rh5 Bac7 Qa2 Bg2 b1R Be5 Ne7 g8Q Nc7 Qg7 Qh6 Qg8 Rb3 Kf2 e1N+ Nce2 Nf3 Qd6 Ng5 Qc6 Kd3 Bb2 Kc2 Nc3 e3+ Ke2 c4 Ra4 Ra5 Nf3 Na8 Rd1 h1N Bf4 h2 Nb5 Nh3 Rd3 Kb1 Na7 Rhb5 Nh4 Qa3 Bf1 Qc5 Ra2 Qd5 Bg2 Bg7 f8B Bd4 Be4 Bc5 Bf5 Qf7 Kf3 e2 Bfc1 e1Q Bd2 Qg3+ Ke2 Bg1 Qd6 Bf2 Qc6 Qc8 d8B Qgd6 Kf3 Qdd5+ Ke2 Ng6 Bdf6 Qcd8 Bfa3 Ne7 Bfg5
rbB5/2nB1RnK/r3r1p1/2b5/B3Br2/1bQRp2k/B1n2p1r/1N2Q2N b - - 0 1 illegal: No proof kernel
1r1N2Q1/1QN2b1b/1b1nR3/3pRkbB/2Q1pp2/K1Q1q3/2Q2p1r/1q3n1B b - - 0 1 illegal: No possible last move
q1k1BQQ1/2br3b/b1N1NRnr/3r1q1q/K3N3/3qBb2/1RnNq3/4Nb2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 c4 f5 Kc2 h5 Kb3 d5 e4 Kd7 g4 h3 a4 h4 e5 f3 g5 h2 c5 f2 g6 h3 a5 f4 g7 d3 a6 d4 a7 d2 Ne2 d3 Ng1 f3 Ra5 Rh6 Bb2 Nc6 Ra4 Nd4+ Ka2 b3+ Ka3 Ba6 e6+ Kc8 Bc1 b4+ Kb2 Ne7 g8Q Ng6 c6 Bd6 c7 Nc2 Qe2 d1Q e7 d2 Qb5 Qe2 e8N d1R Be3 Rd5 Qc5 Qd3 Be2 f1B Nd2 f2 Ra2 Qh4 Bd1 Qh5 Ngf3 Bf4 Rg1 h1B Ne1 h2 Qcf8 Bf3 Rg4 Bd6 Rf4 h1Q Rf6 Rb8 a8N Rb7 Be2 Qdf5 Bb5 Bg3 Kc1 b2+ Kb1 Rb6 Ba4 Rbd6 Bc6 Rd7 Bb5 Kb7 c8N Bc7 Ne7 Kb8 Nc6+ Kc8 Ra3 Qd3 Ka2 b1B+ Kb2 b3 Ra2 Qdf5 Kc3 b2 Kb3 Bc4+ Ka4 f1Q Ra3 Qf2 Rb3 Bf1 Rb4 Qe2 Rb3 Bb6 Nac7 Ba5 Ne6 Bc7 Rb4 Na1 Bc5 Qf4 Nc2 Ne7 Ncd8 R7d6 Bd3 Rg5 Bh7 Bfb7 Bf5 Rd7 Ne1 Bbd3 Ka3 b1Q Bg6 Qg3 Bf7 Bh7+ Rb3 Ng6 Ka4 Qgg4+ Bd4 Qbd3 Rb2 Qgf3 Bf2 Nc2 Bc5 Re5 Be3 Qff5 Nd6+ Kb8 Nb5 Kc8 Be8 Ba8 Nc3 Qb7 Bf2 Qa7 Be3 Bf3 Nc6 Qa8 Nce4 Rc5 Na5 Rcd5 Nc6
K1RbnB1b/Q3R3/nN1QQ3/1q1N1q1n/7q/4b2k/bbQ1Bq2/1rr1Q2r b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1B h5 d3 h6 e3 a5 d4 a6 g3 h7 e2 a7 Kg4 f5 d2 f6 g2 f7 d3 Rh5 Be6+ Kb2 b3 Kc3 b2 c8Q Nf6 Na3 b1R Nc2 Na6 Bb2 Be7 f8Q Ne8 Qc5 Rc8 a8Q Ba2 Nh3 g1B Qg7 Be3 Qc1 d1Q+ Qd2 B1f2 Bg2 e1B Rh6 Qf3 Bc1 Qf5 Na3 Qb6 Qac6 Bd8 Qgc7 Bg3 Qe6 Be5+ Qd4+ Kg3 Bc6 g4 Qcd6 B1f2 Qb2 d2 Nc4 d1Q Qc2 Qh1 Nf4 Qh4 Nd5 Kh3 Ba3 g3 Bb4 Qa7 Ncb6 g2 Rf6 g1N Rf7 Bc1 Re7 Bfe3 Ba3 Qfg4 Kd3 b4 Bb5 b3 Bc5 Qf5+ Kc4 Bb2 Qde4 Rg8 h8Q Ne2 Qh7 Bh8 Qg7 Rh1 Rc1 Nf4 Qg1 Nh5 Qgf2 Bf4 Qee1 Rgg1 Qd4 Rb8 Ba3 Be3 Bb4 Nac7 Kc5 Na6+ Kc6 Rf1 Rh7 Qf7 Be2 Qff6 Rf7 Qf2 Re7 Q6h4 Rd1 Rc8+ Kb7 Rc5 Ka8 Rc3 Qb1 Rc1 Qc2 Rb1 Rd3 Rc1 Rc3 Rb1 Qed2 Rfc1 Rc8 Nef6 Rd7 Ne8 Qf8 Ra1 Nc4 Ba3 Qe1 b2 Qa7 b1Q Ncb6 Qb2 Qfc5 Rab1 Qcc7 Qb3 Bf8 Qb5 Qcd6 Bab2 Re7
3B3b/2Nb1Q1Q/R2bbr2/5bR1/1Rrr3N/1b1k1b2/qn1qb2R/1Bn3KR b - - 0 1 illegal: No possible last move
1bB1rQ1K/1qB1BBB1/2r2nq1/1b1R3Q/n2N1R1N/1k3b2/1qr2b1q/4n1r1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 f4 Kd5 a4 Kc4 c3 d5 h5 b5 a5 e5 a6 g5 f5 e3 h6 b3 f6 e4 h7 b2 f7 g3 a7 g4 Rh4 b4 Ra6 b3 Rg6 g2 Rg7 g3 Rgg4 d3+ Ke1 d4 Nf3 g1Q Qe2 g2 Nh2 Ba6 Kd1 Qc8 Nf3 Bb5 Rg7 Qh2 Rh3 g1R Rh4 Qb7 Rf4 Bd6 f8B Nf6 Rg5 Nbd7 Nh4 Re8 a8Q Nc5 Qh5 e2+ Kd2 Na4 Rd5 Bb8 Be7 e1N+ Bg2 Rhg8 h8B Rg6 Bg7 e3+ Kd1 e2+ Kd2 Rg4 Be4 R4g3 Bg6 Re3 Bf7 Re6 Bd8 Rc6 Bc7 Nc5 Qa3 Na4 Qe7 Ng2 Qf8 e1B+ Kd1 d2 Na3+ Kd3 c4 Kc3 c5 b1Q Nc2 b2 Na1 Qg6 Nc2 b1B Ba3 Kb3 Ne3 Be4 Nc2 Bf1 Bb4 Bf2 Ba3 Ne1 Bb4 Ra6 c6 Bb5 Be7 Bg2 Bcd8 Rb6 c7 Rc6 c8B Be4 Bc7 Rg2 Rc5+ Bd5 Rc4 Rg1 Ke2 d1R Rf5 Be4 Rd5 Rc1 Kd2 d3 Nd4+ Ka2 Rb4 Bf3 Rc4 Bg3+ Ke3 d2 Rb4 d1Q Rc4 Qb2 Rb4 Bf2+ Kf4 R1c2 Ke5 Qdb1 Rc4 Qg2 Rb4 Qh2+ Kf5 Rf1 Kg6 Rg1+ Kh6 Ne4+ Kh7 Nf6+ Kh8 Ka3 Ne6 Ka2 Rf4 Kb3 Rdd4 Rd2 Rd7 Qg6 Rd5 Rdc2 Nd4+
2qk3K/2nb4/1BBr3N/4Bn1R/B1bn2rR/3q2bB/2rbQp2/qQ4bN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 d3 c5 b3 a5 b2 c6 g3+ Kf3 b4 e5 g4+ Kg2 b3 a6 d4 c7 d2 e6 d3 e7 Nc6 h5 Bd7 c8Q Nh6 a7 Rg8 Rh2 f3+ Kh1 f4 Qc7 f2 Kg2 Qc8 Qb6 Nf5 h6 Ncd4 h7 Bh6 Qe1 d1N h8B d2 Nh3 Nc3 Qe2 d1R Ra4 Nd5 Be3 Nc7 Nd2 b1Q Be5 b2 Nf3 Qa1 Nfg5 b1Q Nf7 Qd3 Qb1 Rb8 a8B Rb2 Rb4 Rc2 Bc6 Bg5 Nh6 f3+ Kh1 Rdd2 Bg2 f1B Nf2 Rd1 Bh3 g2+ Kg1 Rdd2 Nh1 Rg6 Kf2 g1B+ Ke1 g3 Bf2 Nde6 Rh4 g2 Bb6 Ned4 Rh5 B1e3 Rh4 Bef4 Kf2 Rd6 Rh5 Rc4 Ba4 Rdc2 Bc6 Ng7 Rh4 Bd2 Kg3 Ngf5+ Kg4 g1B Kh5 f2 Ba4 Bf6 Kg6 Bfg5+ Kh7 Bgf4 Kh8 Bg3 Bc5 Nde6 Ba7 Rg4 Bb6 Ned4 Bc6 Bg2 Rh5 Bd5 Ba4 Bc4 Rh4 Bdb5 Rh5 Kd7+ e8B+ Kd8 Rh4 Bd7 Rh5 Bde6 Bec6 Bd7 Bf1 Bgf4 R2h4 Bg3 Bh3
1K1n2qb/4NNr1/4NRr1/QN1n2r1/n1rb1pk1/3br1R1/4N1QB/b2b1B2 b - - 0 1 illegal: No possible last move
q1qq3q/1r1Rb1Br/NQB1n1k1/2R2qQr/p2b2N1/8/2n1B1K1/Bq1b3B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 h5 b4 a5 c4 f5 e4 Kf7 g4 d5 g5 a3 e5 a2 b5 d3 c5 d2 c6 f3 e6+ Kg6 c7 h3 e7 h4 b6 a4 b7 d4 Na3 h2 Bb5 d3 Nc4 h3 Kg3 f2 Qc2 f1Q Ba3 d1R Qf2 d2 Bd6 f4+ Kf3 Nh6 e8B+ Nf7 Bbc6 Rh7 Bc5 Na6 b8B Be7 Ne2 Ra7 Nc3 Nb4 Nd5 Nc2 Rc1 a1B Bd4 Rb7 Nce3 Qa6 Bg7 Bd4 Ng4 Rf1 Bb5 d1Q+ Be2 Rh5 Rg1 h1Q+ Rg2 h2 Bc6 Qh8 Nb4 Nd8 Ba7 Bf5 c8B Ne6 B8d7 Qc4 Na6 Rh7 Be4 Qcc8 Bdc6 Qg1 Bb8 h1Q Bbe5 Qd2 Bed5 Qa5 Rd1 Qad8 Rd3 Rd1 Rc3 Rdb1 Rc5 R1b5 Be4 Qb1 Qg1 Be3 Ba1 Bd4 Qe3 Ra5 Kf2 f3 Kg3 Kh5 g6 f2 Rg1 Rab5 Rd1 f1Q Qb3 Ra5 Qb6 Kg5 Bed5 Bd3 Rd2 Qf5 Bdf3 Bc4 Rd3 Bb3 Rd2 Qhc1 Bh1 Qa8 Kg2 Rb5 Bh6+ Kh5 g7 Kg6 Rd1 Na3 Rd2 Bd1 Rd3 Nc2 g8Q+ Kh5 Bg7 Kg6 Re5 Qcg5 Rd5 Qdc8 Rc5 Qgf6 Qgd8 Qff8 Qd5 Qfd8 Qe5 Rb3 Rd2 Rbh3 Qf4 R3h5 Qg3 Be5 Rd7 Bb2 Qf4 Bd4 Qg5+
1r1k4/6r1/pnN5/n1Bb3N/1rN2b1r/1R4qq/1QKbB2R/N1nNrr1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 b4 d5 c4 h5 g4 d3 e4 h3 c5 d4 b5 h4 b6 a3 e5 h2 e6 a2 e7 h3 c6 a6 g5 f3 c7 f2 g6 f4 b7 f3 g7 Nc6 b8Q Be6 c8N Ra7 Qc2 Qc7 Nc3 Nf6 g8N Nd5 Qcb3 Nb6 Be2 f1Q Qb4 f2 Na4 Na5 Nb2 Qg3 Qa8 Bd5 Qb8 Bh6+ Qf4 Rd7 Rb1 a1B Qe3 Bf4 Na4 Qfg2 Nc5 Bc3+ Kd1 d2 Ba3 f1R+ Kc2 d1R Qe4 Rde1 Qh7 Bcd2 Rb3 Q2f3 Na7 d3+ Kb2 Rb7 Nc6 Rb8 Qh6 Rh7 Qb5 Rg7 Nf6+ Kf7 Nh5 Ke8 Nb7 Kd7 Nc5+ Kc7 e8N+ Kc8 Na7+ Kd8 Nd6 Qfg4 Nc4 Qc8 Bg4 Re4 Ne2 Qe6 Nd6 Rb4 Nc3 Qf5 Be2 Re1 Rf1 h1N Nc4 h2 Nd1 Qfh3 Rf2 Rf1 Rg2 Nf2 Kb1 h1R Rh2 Bc3 Qh7 d2 Kc2 Nd3 Qe4 Nc1 Nc6+ Kc7 Rb2 Re1 Nb3 Rhf1 Qh1 Kd7 Nde3 d1R Na1 Rd4 Nd1 Bcd2 Rb1 Ra4 Bc5 Rb4 Na7+ Kd8 Rb2 Be5 Rb3 Rh4 Nc6+ Ke8 Qa4 Bef4 Qa2 Kd7 Qb2 Kc8 Ne7+ Kd8 Nc6+
1r2Nnqb/3rb1bq/br2BBNQ/1N1rn3/5K2/1N1k3R/QR4p1/q2r3N b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 h5 Ke4 h6 g3 a5 b3 h7 g4 f5 g2 a6 g3 a7 b4 f6 b2 f7 b3 Rh2 d3+ Ke1 d4 Na3 b1Q Be2 b2 Nc4 Bg7 f8Q Ba6 c8N Ne7 Qf6 Nec6 N8b6 Nd7 Qc2 Qg8 Nc8 Rb8 a8N Nf8 Bg4 e2 Kd2 e1B+ Kd1 Bb4 Na5 Be7 Qa4 d2 Ra2 Kd3 Qf4 e4 Be6 e3 Ne2 g1B Na7 g2 Ng3 Ne5 Qh6 Rb5 Rh3 Rd5 Nc7 Qa1 Qg5 b1R Nh1 Rb6 Ne8 Bf2 Rc2 Bh4 Qh5 Bhf6 Nb3 Nfg6 Rb2 Rd7 Qa3 Qf8 Qh4 Kc3 Bd5 Bh6 Bc6 Kc4 Be4 e2+ Kc2 e1Q Bf5 Qe4+ Kd1 Qg7 Nc7 Rhb8 h8N Qg8 Nab5 Nf8 Ne8 Qeb1 Bg4 Qbh7 Ng6 Bh8 Ke2 B6g7 Qh6 d3+ Ke3 d1R Na7 d2 Qa2 Rf1 Nb5 Rf4 Bf5 Rfd4 Be6+ R4d5 Ke4 d1R Bg5 R8b7 Kf4 Rb8 Rh5 Kd3 Bf6 Rc8 Rh2 Rcb8 Rh3+
r1n2K2/1qb2N1b/1R3n2/2BB1BQ1/2r1nn2/Q2BRb2/3q1pbN/3bB1qk b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 c6 b2 c7 b4 Qb3 d1N Qc4 b3 Nd2 b1Q Rh6 b2 Nh3 g1N+ Kg2 g4 Qf7 f3+ Kg3 f4+ Kh2 g3+ Kh1 g2+ Kh2 d3 Ng5 f2 Qh5 f3 Kg3 Bd6 Kh4 Kf4 e5 Nd7 e6 Ndf6 e7 Nh3 e8Q g1Q Qf8 Bb7 c8B Nc3 Nf7 Ne7 Ra3 Nce4 Bf5 Nc8 Rg6 Rg8 h8B Bc7 Qg4+ Ke3 Qg5+ Nf4 Rc3 Bc6 Qa3 Rf8 Be2 f1B Bg7 Bg2 Nf1+ Kf2 Nh2 d2 Bd3 d1B Bd2 Re8 Bf8 Re5 Rh6 Rc5 Be7 Rc4 Be1+ Ke3 Rb3 f2 Rb6 Qd5 Rh8 Qa2 Re8 b1B Bf8 Qd2 Re6 Rb8 a8B Qd7 Bb7 Ra8 Re8 Bb5 Bd5 Bc6 Ng4+ Kf3 Bc5 Bh3 Re5 Kg2 Nh2+ Kh1 Re6 Bg2 Re7 Ned6 Re3 Bbc2 Qg3 Bgf3 Kg5 Nde4+ Kh6 Bb7 Kg7 Qb5 Re6 Bc6 Qg6 Qb7 Qg5 Ned6 Bh7 Bd7 Be2 Bf5 Bf1 Nde4 Bd3 Bg6 Rb6 Bh3 Kf8 Bgf5 Bg6 Bhg2 Bh5 Bg6 Bg4 Bh7 Bf5
3kbKRq/3rB2Q/q3qb2/r1Q3Q1/1bnQN3/n2B4/1N1bpq2/2Qr1R1q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 b5 f4 g5 c4 d5 a4 e5 h4 d3 Ke3 d2 a5 d4+ Kf2 b3 Kg3 d3 f5 b4 a6 e3 h5 b2 a7 e2 f6 e1B+ Kh2 g3+ Kg2 g4 c5 b3 c6 e4 h6 e3 h7 e2 c7 Bb4 Ra2 Na6 Ra1 Nh6 Ra4 Bd7 c8Q Nf7 Ra5 Ne5 Nf3 Nc7 Nc3 b1Q Ba3 b2 Ne4 Nc4 Rg5 Qa2 Ne5 b1Q f7+ Ke7 Qb7 Qba1 Qc1 d1Q Rg8 d2 Nd3 Be8 f8Q+ Kd7 Qb6 Nb5 Nb2 Qa4 Qf4 d1R Qg5 Qa6 Qbc5 Bed2 Rg1 Qdb6 Rh1 Rd8 a8Q Q2b1 Qb8 Qe6 Qbf4 Ra8 Qfe3 Rd8 Qcd4+ Kc7 Rg1 Rd7 Qgc5+ Kd8 Qcg5+ Be7 Bd6 Nba3 Qdc5 Bf6 Qed4 Be3 Rf8 Rg8 h8Q Bd2 Qh7 Rgg7 Rh1 Ra7 Rg8 Rgd7 Kg1 g2 Kh2 g1B+ Kg3 Bh2+ Kh4 g3 Bh3 g2 Rf1 g1Q Bf5 Be5 Bg6 Qf2+ Kh5 Bb4 Kh6 Bf4 Bf5 Bfd2 Bg6 Qc6 Bf5 Ra5 Bg6 Qa6 Bf5 Be7+ Kg7 Bf6+ Kf8 Qb5 Nc3 Qa6 Bg6 Qbe4 Bf5 Qh1 Bd3 Qeh3 Ne4 Qa2 Qhg7 Qh8 Qh7 Qb3 Bb1 Qbh3 Bd3 Qe6 Be7+
1k5Q/2n2q2/R1N1Bn2/qbn1pnb1/Q7/n1BrB2r/N3b1R1/K1Bb1B1r b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e5 h4 d5 a4 Kd7 f4 Kc7 c4 b5 Kc2 g5 Kb2 g3 c5 d3 a5 e3 a6 e2 f5 e1N h5 g2 f6 d2 c6 b3 h6 d4 h7 d3 f7 g4 a7 g3 Rh6 b4 Ne2 g1R Ra5 g2 Rg6 Bd7 Nd4 Bh6 f8B Nf6 Rc5 Rh1 Be2 g1N Nf5 Ngf3 Bf1 Nd4 Ne7 Nf5 Rc4 Na6 Rf4 Bg5 Qc2 d1B Nc3 d2 Rg4 Nd3+ Ka1 Be2 Na2 d1B Rg2 Ndc5 Rh6 Rb8 a8Q Qe8 Qc4 Rd8 Qb5 Qf7 Qa4 Be8 Rg6 Rd3 Qc8+ Kb6 c7 Bb5 Nc6 Rhh3 Qe8 Kb7 c8B+ Kc7 Nd8 Kb8 Be6 Nc7 Bh6 Rh1 Bb2 Rhh3 Bc3 b2+ Kb1 Bh4 Be3 Bg5 Nc1 Rh1 Ka2 b1N Ka1 b3 Na2 Na3 Rh6 Rf8 h8B Rh3 Bg7 Rh8 Rg6 R8h5 Qh8 Rh1 Nb4 R5h3 Bh6 b2+ Ka2 Rg3 Bed4 Nc2 Qa5 Be3 Bb3 Nh5 Ra6 Nf6 Be6 Rgh3 Kb1 Bf2 Bc1 Be3 Qa1 Bg5 Bde3 Ne1 Ka2 b1Q+ Ka3 Qc2 Qa2 Qa4+ Kb2 Qa5 Qa4 Nc2 Na2 Na3 Ka1 Rh5 Bf2 R5h2 Bfe3 Rh3 Nc6+
qn3Knq/N4B2/1b2R3/3r2b1/kRqQ3q/2p2QnB/1B2BBbr/rNr5 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 c5 g4 f5 e4 h5 d4 h3 d5 b3 d6 h2 d7 b2 Ke6 h4 Kf7 f3 g5 f4 a3 h3 e5 f2 g6 f3 g7 Ra5 e6 Qh4 Nd2 b1R Qe1 Ka4 d8B b5 e7 c3 e8Q c2 Q8e3 c4 Be2 f1Q Q1f2 c3 Bb6 b4 Bb2 c1B Qd4 Bb7 Qfe3 f2 Ngf3 Rg5 Ne5 Bc5 Nc6 Rd5 Na7 Bc6 Ra2 Ra1 Nb1 Rh6 Qf3 Bg5 Rg1 h1Q Rg4 h2 Re4 Bb7 Re6 Qfh3 Ke8 f1Q Kf7 Qh1g2 Ke8 h1N Kf7 Kb3 a4 Ng3 a5 Qgh1 a6 Q3g2 Bc7 Bb6 Kf8 Ba8 Ra5 Rh5 Rb5 Ka4 Bf4 Bc6 Be3 Q1h3 Qd1+ b3 Bf2 Rh6 Qg4+ Qe4 Qf3 Qc4 Qd4 Qfh1 Nc8 Q3g2 a7 Qgh2 a8B Rh5 Ba3 b2 Na7 Q2g2 Bb7 Q1h2 Bc8 Ba8 Nd2 b1R Bb2 Rc1 Nb1 Qhh1 Qff6 Qge4 Qf3 Qh7 Bd7 Qh8 Bc8 Qe4 Bd7 Rh2 Bc8 Qeh4 Rb4+ Ka5 Rf6 Bb7 Bh3 Ba8 Re6 Bb7 Rb3 Ka4 Qh5 Rd6 Qhg4 Bg2 Qgf4 Bf1 Rb5 Qd5 Qf3 Qa8 Rb3 Bg2 Rb5 Nf6+ g8B Rd5 Rb3 Q8h5 Bf7 Ng8 Rb5 Qh8 Rb4+
Bbb1q3/1r2Bnn1/1RR3rQ/1K5R/p5bq/1R1k3N/b1q1q1RQ/3nr2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 Ke4 g4 f5 b5 h5 g5 a5 c3 d3 e3 a3 b6 d5+ Kb5 h3 g6 d2 c4 a2 g7 d4 b7 h4 c5 h2 c6 f3 c7 f4 Be2 a4 Nh3 d3 Qc2 d1N Bd2 f2 Kc4 f1B Rg1 h1B Be1 f3 Bc3 f2 Bb2 Ra6 Qd2 Ne7 g8R Bf3 Kc5 Qe8 R8g2 Rh7 Ba3 Rg6 Rh1 Nd7+ Kb5 Nf5 b8Q Bg4 Be7 Ng7 Qc1 d2 Nc3+ Kf5 Ne4 Ne5+ Qc6 Nf7 Rb1 a1R Ng3+ Ke5 e4 Kd4 e5 Ke3 Ng1 h3 e6 h2 Rb3+ Kd4 Bc4 Bd3 Nh3 Bb1 Bd3 f1Q Be2 Qf2 Bf3 Ba2 Be4 Qf5+ Bd5 Qc2 Be4 Bd7 c8R Rb1 Rc7 Bc8 Rb7 Ra1 Rb6 Rc1 Ba3 Bc5 e7 Ra1 Qf4 Bd6 Qh6 Be5 Qd7+ Bd6 Ba8 Rc1 Rc6 Rb1 Qe6 Bb8 Qe2 Ra1 Rf1 h1Q Rf6 Qe1 Nh1 Qh4 Rf5 Rc1 Rh5 Rb1 Rb2 Ra1 Qe5+ Kd3 Qh2 Nf2 Bb4 d1Q Bd6 Qde2 Rb3+ Qc3 Bc5 Re1 Ba3 Nd1 Bc5 Qd8 e8R Qd7 Re6 Qe8 Rb1 Qcd2 Be7 Qc2 Rb3+ Qc3 Qc7 Ng5 Qh2 Nf5 Bf8 Ra7 Bb4 Ng7 Be7 Nf7 Rf6 Rd7 Rb6 Ra7+ Rfc6 Rb7 Rb4 Qcc2 Rb3+
KB2NB1b/2NQ1n2/1q1r2R1/B2Brbp1/1R4r1/Q2q2q1/5k1B/b1bnnq2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kg6 d4 Kf5 a4 e5 h4 b5 f4 c5 h5 g5 h6 c3 h7 c4 a5 b3 a6 c2 d5 b4 a7 b2 d6 g3 d7 g2 Ra4 c3 Ra2 b3 Qd6 Kg4 f5 Kg3 f6 Ne7 f7 Nf5+ Ke2 e3 Kd3 e2 Ke4 e1N Kd5 Nc6 Rh5 Bg7 f8B Kf2 Qb4 e4 Ra4 e3 Nf3 g1Q Qd6 e2 Bf4 c1B Nd4 c2 Ne6 Qb6 d8B Ne5 Nc7 Nf7 Rh6 Qg3 Nc3 b1Q Rg6 Bb2 Ne8 c1B Nb5 Ba1 Nbc7 b2 Bg2 Qbd3+ Rd4 b1R Qd7 Rb4 Bh1 Rb8 a8Q Rg8 Bf3 Bh8 Qa3 Ra8 Be5 Ra6 Be4 Qg4 Bh2 Qgg3 Rh6 Rg6 Bh1 Re6 Rg6 Nc2 Bf3 e1Q Bg2 Qef1 Bf3 Be5 h8B Ne1 Bhg7 Rc4 Bd6 Rb4 Bgf8 Bh8 Be5 Qb8 Kc5 Rad6 Bd5 Ne3 Bf4 Ra4 Rb4 Re4 Be5 Nd1 Bf4 Rf6 B4d6 Re5 Kc6 Qa7 Rb8 Rg4 Rb4 Qa8+ Kb6 Qc6+ Ka7 Qb6+ Ka8 Rfe6 Na6 Rf6 Bb8 Rc6 Nac7 Rd6 Qc6 Bf5 Qd7 Qbb5 Na6 Qc5 Ba5 Qb6 Nac7
1Br1Bq2/4p1rR/Qkbb3B/bn1q1B1b/3n1Q2/3r1B2/R1qNr2n/1N5K b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 b5 Kf2 d5 a4 Kd7 g4 Kc6 Kg2 h5 c4 d3 f5 d4 g5 e3 f6 b3 a5 e2 g6 e1B g7 h3+ Kh2 b2 f7 d2 c5 h4 a6 b4 a7 b3 Qg4 d1R Qf4 d3 Nc3 b1Q Nge2 d2 Kg1 b2 Ra2 h2+ Kg2 h3+ Kf3 Rh7 Nd5 Nf6 g8B Qc2 Qb4 b1N Qb2 Rg7 Bg2 Bd7 Qb4 Nc3 Ng3 Ng4 Ne4 Nb5 Ndc3 Qc8 Rg1 h1Q Nb1 h2 Qa4 Kc7 c6 Kb6 c7 Nc6 Bh7 Qe8 Bf5 Rc8 a8Q Bg3 Bb2 Bd6 Be5 Ncd4+ Kg3 Bc6 Bf3 Re1 Bf4 d1R Ned2 Re3 Bd7 Qd8 Be8 Re2 Rg2 Qf1 Qb4 h1B Rh2 Qd7 Rh7 Qdf5 Qba4 Qd5 Qc4 Qf2+ Kh3 Nh2 Qca4 Rd8 c8B Rc1 Be6 Rd1 Bf5 Rc8 Nb3 Rd3 N3d2 Rg2 Be5 Bh6 f8B Rg7 Qb4 Bf4 Qc4 Bb4 Bb8 Ba5 Qb4 Rg8 Bh6 Bd6 Ne4 Rg7 Qd2 Qg1 Qf4 Qg5 Ned2 Qf6 Beg6 Qf8 Kg3 Re6 Kf2 Re2+ Kg1 Bg2 Be8 Bh3+ Kh1 Bg4 Bf7 Bh5 B7g6 Qc3 Be8 Qc2 Qa6+
2q1NbKn/1nN5/1Qb2rB1/r1n1r2N/2rBRR1N/q2kpQ2/1r2N1rn/8 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 a5 b5 g5 h5 f5 e3+ Kd3 e4+ Ke2 Kc4 f6 d5 c3 h3 a6 d3+ Ke1 e2 Kf2 e1N Kg3 b3 Kf4 d4 Ke5 b4 f7 h2 a7 h4 g6 b2 g7 e3 Ra3 b3 Be2 h3 Bf1 Nc6+ Ke4 Bd7 Ra5 Rh4+ Qg4 Nge7 g8N Qc8 Bd2 Ng6 Be2 Nf3 Be1 Nd8 Rf5 Nh8 Nf6 Nb7 Rf4 Be8 Bd1 d2 Bc2 d1R Ne2 d3 Nh5 d2 Qg6 Bb5 Bg3 Rg1 Qb6 d1R Be1 Rd7 Kf5+ Rd4+ Kf6 Rg2 Bg3 Bc6 Bg6 Re4 Nd2+ Kd3 c4 b1Q c5 b2 Rc1 h1N Rc4 Nh2 Nf3 Rg4 Nh4 Qa2 Be1 b1R Bc3 Qa5 Bd4 Nf2 Ra4 Rb5 Rc4 Rb8 a8N Qa3 Nc7 Ra5 Rb4 Rg5 Ra4 Re5 Rb4 Bd6 Kg7 Bf8+ Kh7 Qd7 Kg8 Qc8 Rf5 Reg4 Rf4+ Ne4 Rc4 Nf3 Rb4 h2 Ra4 h1R Rb4 Bh6+ f8Q Rf1 Ra4 Nh2 Rc4 Be8 c6 Rff2 Qf7 Bf8 Ra4 Kd2 Qd5 Nec5 Qf3 Bd7 Ne6 Be8 c7 Bc6 Re4 Kd3 Rb4 Qd8 c8N Rf4 Nd6 Qc8 Nc7 Rf6 Ng1 Rb2 Nde8 Rba8 Rc4 Ra4 Ne2 R8a5 Rc1 Rc4 Rg1 Rf2 Rgg4 Rg2 Rgf4
b2n1b2/2r1n1qR/1n2k1Qp/1n4BQ/2q4n/1B1R2b1/1qpK2NQ/N2Qr2Q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 c5 g4 f5 d4 b5 g5 f3 g6 c3 e5 c2 d5 b3 a5 b2 a6 f2+ Ke2 c4 a7 h6 d6 f4 g7 c3 Rh2 f3+ Kd3 b4 Bf4 c1B Qa4+ Nc6 Qb5 h3 Na3 b1N Rh1 b3 Be2 f1N Bd1 b2 Nc4 f2 Ra5 c2 Ne3 h2 Bf3 Ke6 d7 Nc3 Ng2 b1Q Ne2 Nd2 Qb8 f1Q Bg5 Qf6 d8Q Nge7 g8Q+ Qf7 Rd5 Nc4 Rd7 Nb5 Qg6+ Qf6 Rg1 h1N Qbc7 Rb8 a8Q Ng3 Bh5 Qf4 Rd1 Rb7 Rd2 Bb2 Nc1 Nb6 Nb3 Ngf5 Na1 Nh4 Rd1 Qc4+ Kd2 Rh7 Bf3 Ba3 Qh5 Qb2 Bd5+ Kf5 e6 Bd6 Qcb8 Qg7 Rc7 Bg3 Rd7 Qf1 Bb3 Rc7 Qab7 Qc4 Rd3 Neg6 e7 Ke6 e8Q+ Nge7 Q7a8 Bb7 Qeg6+ Ke5 Qd7 Nd8 Rf1 Rh8 Rf7 Bf3 Qdg4 Bc6 Qd1 Bd5 Qa6 Ba8 Qab7 Rg8 Qh7 Ke6 Q7g6+ Qgf6 Rh7 Rg7 Qe8 Rg6 Qbf3 Qg7 Qh1 Rf6 Qfd1 Rf1 Qeg6+ Ke5 Qc8 Rg1 Qch3 Re1 Rf3 Kd5 Q3h2 Ke5 Rc3 Kd5 Rd3+ Ke5 Bf6+ Ke6 Bg5+
R3rb1K/1q2b2B/3p1Q1q/n2B1B2/2b3NR/n3qp2/1n2Q2B/nkNB2nr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 e4 Ke5 a4 b5 c4 f5 a5 g5 h5 d3 c5 Kd4 c6 b3 c7 f3 Kg3 d2 h6 b4 e5 f2 e6 b2 a6 f4+ Kh2 b3 a7 g3+ Kh3 g4+ Kg2 Qh4 h7 Nc6 e7 Na5 e8B Ne7 Ba6 Nec6 Qe1 d1N Bf1 Qh6 Bd3 Ba6 c8B Nb4 Nc3 b1Q Ne4 b2 Bh5 Bc4 Rh4 Nc2 Nh3 d6 Ra4 Na1 Bf5 Re8 Qe2 Be7 Nf6 Kc3 a8B Kb3 Rb4+ Ka2 Rb8 Bf8 Bde4 Qd3 Rd8 Qe3 Bad5 f1N Rc8 Nd2 Ra8 b1Q Nf2 Qb7 Nd3 Kb1 Bb2 Be7 Bd4 Nb2 Be5 Rhf8 h8Q Rf7 Kh1 g2+ Kh2 g3+ Kh3 g1B Ng4 Rh7 Qf6 Rhh8 Bh7 Bf8 Bef5 Bf2 Nh2 g2+ Bhf3 g1N+ Kg4 Qhg7+ Kh5 Bg3 Ng4 Be1 B3e4 f3 Bh2 Bg3 Bde6 Bf4 B4d5 Bh6 Bd7 Be7 Ba4 Qf8 Kg6 Bg7 Bhg8 Rh5 Bh7 Qh8 Bd1 Bgf8 Bhg8 Qhh6+ Kf7 Bb5 Bgh7 Ndc4 Kg8 Na3 Kh8 Ba6 Qf1 Bc4 Qe2 Rg5 Ngf2 Rg3 Ng4 Rh3 Be5 Rh1 Bf4 Qb4 Bh2 Qb7 Nc1+
bnRK2bq/Qr1R3n/4Rr2/N4B2/1R4pR/2Qq2nr/3p2r1/1Nb1Bk1q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 c4 Ke5 e4 f5 a4 b5 h5 g5 a5 d5 h6 g3+ Kf3 g2 h7 b3 c5 b2 a6 g4+ Ke2 d3+ Kd2 Kd4 e5 b4 e6 f3 c6 f2 e7 b3 e8R f4 a7 f3 c7 Bh6+ Re3 Bb7 c8R Nf6 Nc3 b1Q Rc5 b2 Be2 f1Q Rc7 f2 Qc2 Rf8 h8R Nh7 Rd7 Rf6 Rh4 Bc6 Nh3 g1R Ng5 Rg2 Nge4 Qh1 Nc5 Qf8 Nb7 f1N+ Kd1 d2 Bd3 Qc8 Na5 Ng3+ Re1 Bb7 Bf5 Bg5 Qb3 Qd3 Nb1 Qf8 Ra3 Qg7 Rc8 Qh8 Qc2 Bh6 Rb3 Bc6 Rf1 Ke3 Rb4 d4 Re1+ Kf2 Qc3 Bd5 Nc6 Bg8 Na5 Qh2 Re6 Kf1 Rb3 Qh1 Rb4 Qb5 Kc2 d3+ Kb3 d1B+ Ka3 Bf3 Bd2 Be4 Be1 Bc1 Kb3 d2 Ka3 Qd5 Ka4 Qd4 Kb5 Qd3+ Kb6 Bb7 Na3 b1R Kc7 Bf3 Rbe4 Rb7+ Kd8 Na6 Red4 Rab8 a8Q Rb3 N3c4 R8b7 Na3 Nb8 Nb1 R7b4 Qa6 Ba8 Qa7 Rb7 Rh5 R3b6 Rb4 Rh6 Rg5 Rh3 Rh5 Rd6 Rh4 Ra6 Re8 Rf6 Re6
B1RNb3/q1Nq1bb1/2QqQp2/pn1B1B2/1RB2rn1/5rr1/k7/1n1KBn2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 Ke7 b4 Kd6 e4 h5 g4 d3 g5 f6 b5 Kc5 g6 Kb4 b6 d5 e5 a3 g7 d4 b7 a2 c5 d2+ Ke2 f3+ Kd3 f2 Ke2 h3 c6 d3+ Ke3 h2 e6 h4 c7 h3 e7 Bd7 e8B Rh4 c8B Nh6 g8B Bg7 Bef7 Be8 Bg2 f1N+ Kf2 Qd7 Qe1 Rf4+ Bf3 Na6 Na3 Nc7 b8Q+ Nb5 Qe6 d1N+ Ke1 Nc3 Qb7 Nb1 Qbc6 d2+ Kd1 Ng4 Ne2 a5 Rg1 h1R Nd4 h2 Rg3 Rg1 Bd5 h1B Rb3+ Ka4 Bg6 Rb8 Bf5 Rg3 Bb7 Be4 Bc4 Bd5 Ba8 Rb7 Bb2 Rb6 Bc3 Rgf3 Qe5 Bdf7 Ne6 Qa7 Nd8 Qd7 Qce6 Rd6 Qe3 Rd3 Qc6 Rg3 Qee6 Rdf3 Nc2 Qd6 Nb4 Qd7 Nd5 Qa7 Kc2 Qd7 Nc7 d1Q+ Kb2 Q1d4 Kc1 Qa7 Be1 Qd6 Bd5 Qd7 Kd1 Qd6 Rb4+ Ka3 Rc4 Nbd2 Rb1 a1Q Rc5 Qd4 Rb3+ Ka2 Bc4 Ngh2 Nd5 Qad7 Qc7 Rf2 Qe4 Bg6 Qb6 Qe3 Rc8 Ng4 Nc7 Nb1+ Bgd5 Bgf7 Qc6 Qa7 Qe6 R2f3 Rb4+
2n5/3r1N1r/1q1QNn1B/r6R/1rk1r2Q/p2bRNNB/Np1b1K2/1r1q3r b - - 0 1 illegal: No proof kernel
2Q3Qq/2rb2B1/Qr3Rrn/kn3QRN/1p1rb1N1/pK6/4r3/QBb3rq b - - 0 1 illegal: No proof kernel
1b3bb1/prbB2N1/4q3/B3RqNq/1N2n3/1NR1p1bN/1Kn3kQ/2Q1b2r b - - 0 1 illegal: No possible last move
2NNQ2b/5R1N/RB2np1K/1b1q1bNb/bq1p3n/2rk2nB/3r3Q/N6n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 Kh5 Ke4 a4 d5 g4 b5 c4 f6 e3 f3 c5 f2 a5 d3 g5 b3 a6 b2 a7 d2 c6 d4 g6 b4 c7 b3 g7 h3 Bc4 f1B Be2 h2 Qe1 d1B Qf2 Bd7 c8N Na6 Nf3 Nh6 g8N Nc7 Ra6 Nf5 Nh6 Ne6 Nf7 Bg7 Na3 b1B Bd2 b2 Ba5 B7a4 Bb6 Nh4 Nc2 h6 Rg1 h1N Na1 Qd5+ Rg5 Rh7 Nd8 Bh8 Qh2 Rc7 Bb5 Rb8 a8N Rc3 Bd7 Bfb5 Nc7 Kd3 e4 Rb7 e5 Ng3+ Kg4 Bbc2 Rg7 b1Q Re7 Qb4 Rf7 Ng7 e6 h5+ Kf4 Be2 Ng5 Bg4 e7 Bf5 e8Q Bd1 Nce6 Rbc7 Qh1 Rc2 Qh3 Rd2 Qg2 Rc3 Nh7 Bg6 Ba5 Nf3 Rb6 h4 Rc6 h3 Neg5 Be4 Ra6 Nh4 Bb6 Bg6 Bg4 Bf5 Qf2 h2 Qg1 h1N Qh2 Be2 Bh3 Be4 Nf3 Ne6+ Kg4 Ngf5 Kh5 Nfg3+ Kh6 Bf5 Nfg5 Beg4 Ra8 Bh5 Ra6
n2K2Rn/r2B1r1n/ppN5/1bBB2rQ/1B2B3/4N1qn/1n1q3k/R3brQ1 b - - 0 1 illegal: No possible last move
1q3R2/1k1rp2K/4NBB1/r3R1bR/n7/1q1Rnb1R/1Nnp2qn/1n3QqQ b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 b5 f4 d5 g4 Kd7 a4 Kc7 c4 h5 g5 h3 c5 h4 c6 d3+ Ke3 h2 g6 b3 g7 b4 a5 d4+ Kf2 h3 Kg3 b2 f5 b3 Kg4 d2 Kg5 d3 Kg6 e3 a6 e2 a7 e1N f6 Bb7 f7 Nh6 g8Q Nd7 Ra3 Nb6 Bg2 Na4 Qh7 Nc2 Qf1 d1N Nf3 d2 Ng5 Nde3 Be4 Nhg4 Nc3 b1Q Bb2 Bh6 f8R Qb8 Ne6+ Kb6 c7 Bg5 Ba1 b2 c8R Qd1 Kg7 b1N Bg6 Bf3 Rcd8 Kb7 Rf5 Rf8 Rd3 Rd8 Re5 Rd7 Qh8 Kc6 Kh7 Kb7 Qf2 Qg1 Nd1 Qg3 Qf1 Qg2 Rg1 h1Q Nb2 h2 Rac3 Qg3 Rcc5 Qhg2 Rh1 Bh4 Rh5 Bf6 Rce5 Bg5 Rg1 h1Q Rh3 Qhh2 Rh1 Qhg1 Rh5 Qe8 R1h4 Nh2 Rh3 Rc8 a8R Rc5 Rd8 Ra5 Rc8 Qd8 Ra8 Qc7 Rf8 Qb8 Qf6 Q1f2 Qh1 Qfg1 Qf5 Qf4 Qf6 Qc4 Qf7 Qb3 Qf6 Bd1 Qf1 Bf3 Rc5 Be2 Nc4 Qe4 Bf6 Qeg2 Nb2 Bf3 Re5
Q6B/1pN1n1b1/Q1nR1Q2/2rb3K/1n3k1b/1bNn4/BR1p1qQ1/Q1n3qr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Ke5 h4 d5 c4 g5 a5 f5 a6 f3 Kg3 f4+ Kh2 f2 a7 f3 Kg3 b3 c5 d3 h5 d4 c6 b2 c7 d2 h6 d3 h7 Nc6 Qb3 d1N Qa3 d2 Be2 f1Q Rh6 f2 Qf3 Qf6 Nh3 Qg1+ Qg2 f1B Ra3 Bg7 Rh5 Be6 c8Q Bd5 Bc4 Nf2 Bb3 Bfc4 Nf4 Nge7 Qf8 Nd3 Rh6 Rc8 Nc3 b1N Ra2 Na3 a8Q Nc2 Rb2 N2b4 Ba2 Bb3 Ne6 Qff1 Nc7 Qgf2+ Kh2 g3+ Kh3 g4+ Kh4 Q1g1 Qd8 Kf4 e5 Bf6+ Kh5 Bh4 Qh1 g2 e6 g3 Qa6 Qgf1 Qh2 g1N Qg2 Ne2 Rg6 Q1g1 Rh6 Rg8 h8Q Rf8 Qg7 Rh8 Qf6+ Nf5 e7 Rh7 Qh3 g2 e8Q Rh8 Qg7 Nfe7 Qeg6 Qge1 Qh1 g1B Qgg2 Bh2 Q7g6 Qeg1 Qe6 B2g3 Qf8+ Bf6 Qfg8 Bg7 Qf6+ Nf5 Qgd8 Bh4 Qg8 Re8 Qgf8 Re5 Qfa8 Rh7 Rc2 Rh8 Bb2 Nec1 Ba1 Be4 Rb2 Rc5 Qe7 Bed5 Qed8 Re8 Rd6 Re3 Qf6 Rh3 Qf1 Rh2 Qhg2 Rh1 Nd1 Ra5 Qfg6 Bgf6 Rc2 Ne2 Bd4 Be5 Nc3 Nfe7 Rb2 Rc5 Qa1 Nec1 Qe6 Bg7 Bf6 Bh6 Bh8 Bg7 Qf6+
rQ6/r6n/p1BnR1b1/1BBBbb1B/7p/Qqnqn1b1/2r1N3/N4kRK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 b4 Kd6 e4 Ke5 c4 h5 g4 f5 Kg2 d5 g5 a6 g6 h3+ Kh2 h4 g7 d3 c5 Kd4 c6 f3 c7 d2 e5 Ke3 e6 Kf2 b5 f4 e7 d4 e8B a3 b6 d3 b7 a2 Bd7 Ra7 Bg4 Ne7 g8B Nf5 Nc3 Nd6 Nd5 Nd7 b8Q Nf6 B4e6 Nh7 Bef7 Bf5 Rb1 a1B c8B Be5 Qa4 d1N Qa3 d2 Rb2 Nc3 Rb1 d1Q Bce6 Qb3 Bh5 Ke1 Qb5 f2 Rb2 f3+ Bf4 Bfg7 Qb8 Bgf6 Bc4 f1B Ne3 f2 Bb5 B1d3 Nc2+ Kf1 Bd5 Bg6 Bbc6 Bdf5 Na1 Bg5 Bg3 Bgf4 Bgf7 Qd7 Be8 Rf8 Ba8 Qdb5 Bac6 Qd3 Rc2 Ra8 Bb5 Rf7 Bec6 Rfa7 Re2 Bd4 Re6 Bde5 Nf3+ Ke2 Rc1 f1N+ Kh1 h2 Bf2 Bg3 Bc5 Ne3 Rc2+ Kf1 Ng1 Ke1 Ra2 Nf1 Kg2 h1R Rd2 Rh3 Rf2 Rh1 Ne2 Rh3 Nc1 Rh2+ Kg1 Rg2+ Kh1 Ne3 Ra2 Rd2 Rc2 Kf1 Rb2 Rd1 Rg2 Rd2 Ne2 Rc2 Rg1+
b1QR4/1pqnN1K1/Q1qb4/1krnp1NB/R2B1r2/3n3b/1NNbq3/5Nn1 b - - 0 1 illegal: Other
B1kqB1QB/1r4R1/n2Nbb1p/7n/8/Np1B2r1/b1Q1Knb1/nB2nn1R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 b5 g4 d5 c4 Kd7 a4 f5 a5 b3 g5 b4 c5 h3 a6 h2 g6 h6 e5 d3 a7 f3 g7 b2 Ra6 d4 Ra1 d2+ Kf2 f4 Be2 b3 Ba6 d3 Qc2 d1N+ Ke1 d2+ Kf1 f2 Na3 b1B Bc4 Na6 Nh3 Nf6 g8Q Nb2 Qch7+ Be7 Be2 d1N Be3 Nh5 Bd4 Rb8 a8B Nd3 Ng5 Ba2 Nf3 Rb7 Nd2 Ne1 Qc2 Bf6 Bd3 Ne3+ Ke2 f1N e6+ Kc7 e7 Be6 e8B Kc8 Rg1 h1N c6 Nf2 c7 Rh7 Rg2 Rg7 Ndc4 Rg3 Rd1 Bh4 Bh8 Bf6 Qd2 N3c2 Rg1 Rh3 Rg7 Na1 Qc2 Rg3 Bf7 Kd7 c8B+ Kc7 Bd7 Kb8 Bde8 Kc8 Rd2 Nh1 Bfg6 f3+ Kd1 f2 Ke2 Nh2 Rd1 f1B+ Kd2 Bfh3 Ke2 Nf2 Bgf5 Bg2 Rc1 Nef3 Rh1 Ne1 Qd2 Nhf3 Bb1 Nh2 Bfd3 Nf1 Qd1 Bed5 Qc2 Be6 Nd6+
4Nkb1/1b3p2/1K1n2R1/RbQBB1pQ/1B1N2nr/1q2B2n/nn3r1b/4B2n b - - 0 1 illegal: No proof kernel
5nn1/2p1Q1bp/rn1n1r1N/N3BR1n/2BN1b1K/1b1b4/NR2NQ2/kn1q4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 d4 Ke6 e4 b5 g4 f5 a4 h3 d5+ Ke5 a5 b3 a6 h2 a7 b2 g5 b4 g6 c3 d6 c2 g7 f3 Kg3 f4+ Kf2 b3 Bd3 Kd4 e5 Be6 Ra6 Nd7 Bd2 c1B Nc3 b1N Nh3 b2 Qc2 Bb3 e6 Na3 e7 b1N e8Q Nc4 Qe7 Ncb6 Rf1 h1B Ra5 Bg2 Rh1 Bf1 Bc4 Bd3 Be1 Bd2 Rh2 Bc1 Rf5 Bd2 Kg1 f2+ Kg2 f1N Na2 Ng3 Ng1 f3+ Kh3 f2 Kh4 f1N Rg2 Bh6 Qf2+ Ne3 Bb4 Nh5 Ba3 Nc5 d7 Ne6 Bd6 Bf4 Rh2 Qe8 d8N Qd7 Nb4 Kc3 Ndc6 Qd8 Ne2+ Kb2 Na2 Ka1 Ncd4 Qd7 Be5 Qd5 Bb5 Nec4 Ba6 Nd6 Bc4 Qa5 Rg2 Qe1 Rh2 Qd1 Rg2 Nh6 g8N Bg7 Rh2 Rf8 a8N Rf6 Rg2 Nhf7 Nh6 Nf8 Ng4 Nh6 Rh2 Na4 Nb6 Ng8 Rg2 Qf1 Nh6 Qd1 Nc8 Nb6 Na7 Nf7 Nac6 Nd6 Na5 Ne6 Qd7 Ne7 Nec3 Rb8 Qf3 Ng8 Qe7 Nf8 Rb2 Ra8 Qf2 Ra6 Nce2
R1nb1n2/1b2p3/k1qrqB1N/B1bR2rB/Q4pB1/q1b2B2/1b1Np2K/1Q6 b - - 0 1 illegal: No proof kernel
n1n1RKnQ/pR1bB1p1/N1k1b3/Q2q1n2/2B5/rRqn4/3p3b/N1rR1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 f5 c4 d5 h4 Kd7 e4 d3 b4 d2 b5 g3+ Kf3 d4 h5 a3 e5 g2 b6 a2 e6+ Kc6 e7 d3 e8R Bd6 b7 Be6 h6 Nd7 b8Q Nb6 h7 Nc8 Qe1 d1B+ Ne2 Ba4 Qa5 d2 c5 g1Q Na3 Qd4 Rb1 a1N Nc2 Nb3 Ba3 Nc1 Rb3 Nd3 Na1 Qc3 Ng3 Be5 Re7 Qd5+ Ne4 Bb5 Rb7 Bc7 Kg2 f3+ Kh3 f2 Kh4 Bh2 Kg5 f4+ Kg6 f3 Be2 Ba4 Rd1 f1N Bb4 f2 Ba3 Ne1 Bc4 Ne3 Bb4 f1N Ba3 Nh6 Bb4 Rf8 h8R Rf3 Rf8 Ng8 Rf5 Rh3 Rff7 Ng3 Rf1 Ngf5 Ba3 Bg1 Qh2 Rf3 Qh8 Nd3 Bb4 Bh2 Ba3 Qdd4 Kh7 Nd5 Kg6 Bd7 Kf7 Nc7 Kf8 Be6 Bb4 Qd5 Ba3 Kd7 Bb4 Kd8 Ba3 Bad7 c6 Rb8 Nc5 Rg3 R7b6 Na8 Bb4 Kc7 Rb7+ Kd6 c7 Kc6 Na6 Rh3 Be7 Re3 Rbb1 Re1 R7b3 Rb4 R1b2 Ra4 Rb7 Ra2 R2b3 Ra3 Rdb1 Ncb6 c8R+ Nc7 Re8 Nca8 Rf3 Nc8 Rc1 Re3 Rh1 Re1 Rf2 Rb1 Rd1 Rc1 Rff1
7K/Q1nrn1rn/2B1k2N/Bb1p4/2p1Q1q1/bBB3NR/r1b1p3/2B1Rrq1 b - - 0 1 illegal: No proof kernel
2qb1kr1/1n6/1pBn4/3N1Bb1/3B2np/Q1p2BR1/1BqqN1Q1/2rbbRK1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 e5 f4 c5 Kf2 h5 d4 e3+ Kg2 h3+ Kh2 h4 a4 b6 d5 b3 f5 c3 d6 e2 a5 e1Q f6 e4 g5 b2 g6 c2 g7 c4 a6 e3 a7 c3 Bd3 e2 Ra4 Qd2 Na3 e1B+ Qe2+ Ne7 g8B b1Q Bf5 Nd7 Bb2 c1B Bd5 Nc5 Nc4 Rg8 Bf3 Qbc2 Ne3 Nb7 Nd5 Bg7 f7+ Kf8 d7 Bf6 Rg4 Bg5 Be6 Nf5 Rg3 Nfd6 Bf5 Qc7 Qg2 Bd8 Ne2 Qc6 Kg1 h2+ Kf1 Qc5 Rg1 h1N Qf2 Ne8 Qg2 Nf2 Rh1 Ned6 Kg1 Bf6 d8B Ng4+ Ne3 Bg5 Bf6 Be6 Bh8 Qc8 Bd4 Bb3 Nd5 Bd8 Be5 Qdd3 Bf6 Bg5 Bd4 Rb8 a8B Qcd2 Rhh3 Bd1 Rh2 Q3c2 Rh1 Nc5 Bc6 Ra8 Bh8 Ra1 Bd4 Nf6 Kh2 Rb1 Rf1 Ncb7 Kg1 Ng4 Nf6 Rc1 Bce4 Kg7 Bc6 Nc4 f8Q+ Kh8 Qa3 Kg7 Be6 Ncd6 Bf5 Kf8 Nd5
1B2b2R/3q3R/rp3bq1/3rrnq1/3Q2p1/p2KnNQR/2B1R1rb/2R2k1N b - - 0 1 illegal: No proof kernel
Q1B3R1/qpRnnrnN/4Q2p/1Rr1pb2/2R2rk1/2K3N1/3B1qb1/4Rrb1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 a4 Kf5 c4 d5 g3 e5 c5 d3 a5 d4 c6 e3+ Ke1 h6 a6 b3 a7 b2 c7 d2+ Ke2 h3 Kd3 e2 Nc3 e1Q Qb3 d1N Nge2 b1R Ne4 h2 Nf6 Rh7 Bd2 Rf7 Nh7 Ne3 Ra5 Kg4 f5 Bc5 f6 Qf2 Rb5 Nf5 Qe6 Ne7 Kc4 d3 Kc3 Bd7 c8R Qb6 Rc7 Rb4 Rg1 h1B Bh3+ Kh5 Rc1 Rf4 Re1 Bg2 g4+ Kh4 g5 Ng7 g6 Qa6 Bc1 d2 Ng3 d1R Bd2 Bc8 Bg4 Nd7 Bh3 Rb8 a8Q Qa7 Bg4 Qf1 Bh3 Bg1 Rc4 Qff2 Bf5 Ne8 g7 Ra1 g8R Ng7 Re3 Rf1 Re1 Nb6 Rc7 Bd7 Rc4 Rc8 Bh3 Rc6 Rc8 Rc5 Rc7 Bdc6 Bg4 Nd7 Bf5 Bce4 Bg4 Rf8 f7 Bf5 Bh3 Rd8 f8R Rc8 Rg8 Rf8 Qa6 Rf7 Qc6 Bb1 Be6 Bf5 Qd6 Kg4 Qd5 Nf6 Bc8 Nd7 Qe6
4b2N/nb1Nb2b/Q2NN1B1/2rpR3/2r1pb1N/1qk2b2/pB1R4/2KQ1nr1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 c4 Ke5 b4 h5 b5 a5 g5 d5 c5 e3+ Kc2 d3+ Kb2 Kd4 f4 e5 c6 d2 b6 a3+ Kc2 a2 c7 e2 g6 e1B f5 h3 b7 a4 f6 a3 g7 h2 f7 h4 Bg2 h3 Be4 Ne7 g8Q Ra5 Qf3 Nbc6 b8N Na7 Bd3 Bg3 Qgg4+ Bf4 Qd7 Rc5+ Kd1 Nf5 Qe6 Be7 f8N Ng3 Nbd7 Nf1 Nc3 Bb7 c8N Rh4 Na4 Qb6 Ng6 Qb3+ Bc2 Kc4 Qa6+ Kb4 Rb1 a1R Rb2 a2 Nd6 Rg4 Nh8 Rb1 Ke2 d1B+ Ke1 Be2 Bg6 Bb5 Qd1 Rh4 Nf3 B5c6 Rg1 h1B Rg5 h2 Rh5 Rg4 Nh4 Bf3 Rf2 h1B Rd2 Rg1 Bb2 Rbc1 Rf5 R5c4 Nac5 R1c2 Ba3+ Kc3 Ne6 Bhg2 Ndc5 Be8 Nd7 e4 Re5 Bh3 Qe2 Bf5 Kd1 Rb2+ Kc1 Rc5 Bh5 Bh7 Qd1 Qc4 Ng7 Rb4 Ne6 Qb3 Bg6 Rbc4 Bb2+
1n1nn2q/5r1B/1NRQ2Rp/p6b/2KnnNpk/N2nQ1N1/4r2b/1NB4r b - - 0 1 illegal: No proof kernel
3R2b1/1p3n1b/1p3B1R/N1nbbrbR/kq1Q4/2Q1R1rp/B7/bnNK2R1 b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 d4 gxh4 b5 c5 b6 cxd4 Ba3 axb6 Bb2 Ra7 Bc1 Ra8 f4 e5 g4 d5 c4 Kd7 a4 Kc6 f5 h5 c5 d3 a5 Kb5 f6 d4 a6 h3 g5 h2 f7 e3 a7 h4 c6 h3 g6 e4 c7 e2 g7 d2+ Kf2 d3 Qe1 d1B Ra3 e3+ Kf3 d2 Ra1 Na6 Qg3 Bd6 f8Q Be6 c8R Nc5 Qf7 Nh6 g8R Qe7 Qf8 Be5 Qff4 Nf7 Qd4 Bc2 Rg6 d1N Rd8 Rh5 Rh6 Bh7 Nd2 Nc3 Nc4 e1B Ne2 Nb1 Ra3 Bd2 Rg1 h1B+ Bg2 Bc3 Na5 Ba1 Bb2 Qh4 Rd5 Rg8 Nc1 e2 a8R e1B Ke2 Bd2 Qgc3 Rf5 Rad8 Rg3 Kd1 Bg5 Be4 Bg2 Bc2 Qf4 Bb3 Bh1 Ba2 Be4 R5d6 B4d5 Rh5 Qe4 Qcd2 Qh4 Re3 Qf4 Q4c3 Qb4 Qdd4 Ka4 Rc6 Nh8 Rcd6 Beg8 Rdh6 Nf7 Qe1 Nd7 Qh4 Bd6 Bf6 Nc5 Qd4 Be5 Qec3
3qnn1B/r1R2b2/N4bbN/1N2kQNB/2bb2q1/1p1p4/Rp5b/Q2rNK2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 c4 Ke7 a4 Ke6 e4 g5 h4 b5 e5 d5 a5 f5 c5 d3 c6 f3 h5 d4 a6 f4 h6 g3 a7 f2+ Kd2 g4 h7 b3 c7 b4 Qe1 g2 Ra4 b2 Ra2 b3 Ra3 f3 Ra2 g3 Be2 f1B Na3 f2 Nh3 g1B Bh5 g2 Nc2 Nf6 Ng5+ Kd5 e6 Be7 Kd1 Bh2 Bf4 g1B Be5 Ne8 Kd2 Bb7 c8Q Bf6 e7 Nd7 Qa1 Nf8 Qf5 Bc8 Ne1 Be6 Kd1 Bf7 Kd2 Rg8 h8N Bg2 Kd1 d2 Ke2 Be4 Kf1 d1Q Be2 Rc8 a8N Rc7 Bh5 Ra7 Nc7+ Kc4 Ra3 Qg4 Na6 Kd5 Ra2 Bc2 Qf4 Bcg6 Qf5 Nc7 e8N Rg7 Nd6 Ne8 Nef3 Rh7 Nb5 Rh6 Ke2 f1B+ Ke1 Be3 Rg1 Bd3 Rg2 Bf1 Rc2 Bc4 Rc3 d3 Kf1 Bd4 Ne1 Bg8 Nhf7 Rh7 Nh6 Rhc7 Qf2 B8f7 Rc1 Re7 Bg3 Re2 Be5 Rd2 Rc2 Rd1 Rc3 Be7 Bh8 Bef6 Qf3+ Ke5 Qh3 Bce6 Rc7 Bd5 Qf3 Bc4 Qf5+
1b1RNb2/3q4/3nRKpB/6Rb/1k2R3/1prQ1Rr1/r1BQ1pbb/1r1n3N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 f5 h5 b5 d3 g6 h6 f3 Ke3 f4+ Kf2 c3 e5 c2 h7 b3 d4+ Kb4 d5 c5 d6 b2 a5 c4 d7 c3 a6 Nf6 a7 Ne8 e6 Nd6 e7 Nc6 e8Q Na5 Nd2 b1R Qe3 Nac4 Rh4 Nb2 Ra6 Qe8 d8R Qd7 Nh3 g3+ Ke1 g2 Kf2 g1R Bd3 Rg3 Nc4 Bb7 Bd2 c1B Bc2 Rc8 a8R Rc5 Kf1 f2 Ke2 Bg2 Qd3 f3+ Ke3 f1B Kf4 Be2 Nf2 Rg8 Nh1 f2 h8R Bh5 Q1e2 Nd1 Be3 Rc6 Ke5 Rg7 Bh6 Bf4+ Kf6 Rg8 Ba4 c2 Qee3 c1B Bc2 Rg7 Rb6 Bd2 Ra5 Re7 Qed4 Re2 Rh7 Rc7 Rf7 Bde3 Qd5 Rc8 Rba6 Ba7 Qg5 Bb8 Rb6 Nf5 Nd6 Rc3 Ne8 Rd2 Re6 Nd6 Bb3 Ra2 Bc2 Rg4 Qgd5 Bh2 Qg5 Rgc4 Qgd2 Rg4 Rh3 Rg5 Rf3 Rg3 Re4+ Kc5 Ra6 b4 Rfe7 b3 R7e6 Nc4 Ra5+ Kb4 Ree3 Nd6 Rg5 Ra7 Re2 Ra2 R2e4+
B2nB1K1/rb1Q2RB/3BrB1R/2QN1p1b/4bn2/1pnp1k1q/1r1b4/4N1n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 b5 h4 g5 c4 d3 a4 b3 c5 g3 c6 Kg4 e4+ f3 a5 f5 e5 g2 a6 b2 a7 d2 h5 b4 c7 b3 h6 Bb7+ Kc4 d5+ Kd4 Bb4 c8B Ne7 e6 Re8 Ke5 d4 Kf6 d3 Kf7 Ng6 h7 Nc6 h8B Nf4 Qc2 d1B e7 f2 Qc5 Bd2 Nf3 g1N Be2 f1B Rh6 Bg2 Nc3 b1R Bd7 Rb2 Nd5 Qb8 Kg7 Nd8 Ne1+ Kg3 Bh5 g4 Kh7 Nge2 Bf6 Nc3 Bg6 Be4 Kg7 Qe5 Bh7 Qd4 Ra6 Qe3 Rc6 Kf2 Rc7 g3 Bb5 g2 Bc6 Rc2 Ba3 g1N Ba4 Rb2 Rd7 Rh8 e8Q Bh5 Re7 Kg3 Qd7 Re8 Rf7 Re7 Kg8 Re6 Rg7+ Kf2 Qdc8 Ke2 Be8 Qf3 Qd7 Qh3 Nc2 Kf3 Bb4 Rc8 a8B Rcc6 Ba3 Ra6 Bb4 Ra7 Ne1+ Ke2 Qcc7 Kf2 Bd6 Ke2 Qc4 Kf2 Qc5+ Ke2 Nc2 Kf3 Ne1+
1qbr1n2/QB1kpn1r/1RR2p2/1Q1rB1Q1/2r4N/4bQK1/2p2nQ1/2N1b1n1 b - - 0 1 illegal: No proof kernel
bBN3qn/1N1qp1bQ/p1B1B2r/Q3B3/b6b/1rn1k2K/4npBR/R6n b - - 0 1 illegal: No proof kernel
1n3rN1/1Kp2N1q/1b5B/1Bb1Q1r1/2B2Bp1/1Qpb4/Rn2r1pk/q2Bn1R1 b - - 0 1 illegal: No possible last move
2Q1rQ2/4r2B/1B2Q1bR/K1np1N1q/1p2p3/1N1b2R1/1pn2Q1b/k1bbQ1r1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kf6 c4 d5 g4 h5 a4 e5 a5 b5 a6 d3 f5 e3+ Ke1 e2 Kd2 e1B+ Ke3 b3 c5 h3 c6 b2 c7 h2 a7 h4 Qe2 d2 Kd3 d1B Qf2 h3 Qe2 Bd6 Qg2 Rh7 Qf3 Ne7 Qf2 Nd7 Ne2 Ba6 c8Q Bd2 Nd4 Qe8 Ra3 Nc6 Qe1 Bh6 Kc3 Nb4 Bd3 Qh5 Nd2 Nc2 N2b3 Nc5 Be3 Re7 Bg1 Rb8 a8Q Bc1 Qa7 Ra8 Qcc7 Rae8 Qc8 Na1 Kb4 Nc2+ Ka5 b4 Be4 Bd3 Qb6 Kg5 f6 Kf4 Bh7 Bg6 Qf2+ Ke4 f7 Kd3 f8Q Kc3 g5 e4 Qh8 Be2 Qhf8 Bd3 Qe1+ Kc4 Bf2 Bg3 Rg1 h1R Nf5 h2 Qa7 Bb8 Rg3 Rg1 Rh3 h1B Rh2 Bf7 g6 Bf3 g7 Bg6 g8Q Bd1 Rh3 Bh2 Qge6 Qg4 Rh6 Qh5 Nbd4 B3e2 Rg3 Bd3 Nb5 Kb3 Nbd4+ Ka2 Nb3 Na4 Bb6 Nc5 Qab8 Kb1 Qf4 Ka2 Qff2 Kb1 Nd2+ Ka1 Nb3+
3Q1N1R/pn2QQ2/K3bNQ1/2p2b1B/pQ3n1R/3p2rr/1B1qnnr1/2b1k3 b - - 0 1 illegal: No proof kernel
K3BBk1/1Q1qR3/7B/pbp1NQbb/N1bp2n1/Rrp1B3/n3q3/rB3b2 b - - 0 1 illegal: No proof kernel
KQq3nk/NBbRB1r1/p1p5/2N2N1R/q7/p2p1n2/Q3q1r1/Nq1b2Nr b - - 0 1 illegal: No proof kernel
NBN5/q3nBp1/pq3b2/r3rk2/Qn1B1pbp/RKBqB3/7r/RQr5 b - - 0 1 illegal: No proof kernel
b1rBQ1QN/p2rN3/r7/4R1Nk/1nB5/pKp1qr1n/3Nq1pR/N1b2n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 g5 Kd2 c5 Kc2 f5 h4 Kf7 e4 Kg6 b4 c3 d5 f3 b5 a3 d6 c4 b6 f4 e5 f2 d7 f3 b7 g3 e6 g2 e7 g4 e8N g3 Qe1 Qe7 d8Q Na6 b8N Rh7 Bf4 Bb7 Qed1 Qe2+ Nd2 Nh6 Bg5 Kh5 Nh3 g1R Nc6 Nf7 Qe1 Rc8 Nb4 Bh6 Nd6 Ba8 Qg8 g2 Be7 Ng5 Rh2 Rh1 Bd8 Rg7 Nf5 Rd7 Ng1 Nh3 Ne7 Qe5 Bd3 f1R Rb1 f2 Ngf3 Bf4 Ng5 Qe4 Qe3 Qf3 Re1 Qe2 Kb1 c2+ Ka2 c1Q Nc2 c3 Na1 Nb4+ Kb3 Rfg1 Bc4 f1N Ndf3 Qcd2 Qee6 Qde3 Nd2 Ng3 Qe5 Rf1 Qe4 Rf3 Qc6 Kg4 h5 Nf1 h6 Kh5 h7 Qc5 Nde4 Bc1 h8N Qce3 Nd2 Kh4 Qc7 Qb6 Nc2 Qef2 Qe5 Qbd4 Re3 Qe2 Nf5+ Kg4 Qe4+ Nf4 Rh7 Rh6 Na1 Ra6 Qee8 Qc5 Rh1 Nh3 Re5 Qce3 Ne7 Kh4 Rh2 Kg4 Nhg6 Kh5 Nh8+
N2bB1BK/5rnb/pB1q3p/2R3p1/2Bk1r2/rQ1nRN1p/n3B1r1/3Q1n2 b - - 0 1 illegal: No proof kernel
r6b/Rn5K/pnp5/q1R2B1p/1k1pNB2/n2R1Q1p/1n1n1rNR/2Qb2R1 b - - 0 1 illegal: No proof kernel
1Qqk1N2/1QnBR1pp/7Q/4N1p1/Q3n1K1/q1RbpQp1/rb1B2bb/r7 b - - 0 1 illegal: No proof kernel
2N1b1b1/b1n1R2k/b1RBR1B1/2Q2bK1/N1Nqr3/1b4nr/2R5/2Qq4 b - - 0 1 legal: proof: e4 e5 d4 a5 h4 g5 b4 gxh4 c4 f5 exf5 axb4 a4 d5 cxd5 exd4 Nf3 b5 axb5 c6 Ng1 cxb5 Ke2 Kf7 Kf3 Kg7 Kg4 h3 f4 h2 d6 b3 d7 b2 f6+ Kh6 f7 d3 f5+ d2 f6 b4 Ne2 b3 Na3 b1B Ra2 b2 Nc4 Bc2 Nc3 b1B Ba3 Na6 Na4 Bc5 f8R Nc7 f7 Ne7 Re8 Bb3 Qc1 Ba7 Rc2 Nf5 Bd6 Ba6 Re7 Ng3 f8Q+ Kg6 Be2 d1Q Re1 h1B Re6+ Qf6 d8R h6 Rde8 Kh7 Rc8 Qc3 Qf2 h5+ Kg5 h4 Bh5 h3 Qc5 h2 Bf7 Qcd4 R1e3 Rb8 Re7 Rb4 R3e6 Nf1 g4 Bd5 Nd2 h1B Nc4 Nb5 Rc6 Nc7 Kh4 Bhe4 g5 Ng3 g6+ Kg7+ Kg5 Rh3 Qa3 Bf5 Qc1 Kh8 g7+ Kh7 g8N B1a2 Ree2 Bde6 Re5 Bd7 R7e6 Be8 Ne7 Q4g1 Nc8 Qf2 Na3 Re4 Nc4 Qfg1 Re7 Qgd4 R5e6 Re2 Nc4b6 Kg7 Re3 Kh7 Bh5+ Bbf7 R3e5 Bb3 Nc4 Re4 R5e6 Kh8 Bg6 Bg8 Bf7 Kh7 Bg6+
n1B1rQN1/1b5r/2qq2r1/1n4n1/KN5n/Q7/B1k2nBN/3RqR1B b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b3 a5 b4 axb4 Bb2 Bc5 Ba3 bxa3 Qb3 Be3 Qd1 Ba7 b6 Qd7 bxa7 Qd8 e4 Kd7 g4 Kd6 d4 f5 Kd2 c5 Kc3 h5 Kb3 h3 g5 h4 g6 f3 g7 h2 Ba6 a2 Be2 c4+ Ka3 f4 Qd2 h3 Qe1 f2 Bf1 f3 Ka4 c3 Kb4 c2 Qe2 c1N Qc2 Nd7 Ka4 Ne2 Nd2 Nh6 g8B Bb7 Qc3 Nf5 Rd1 Rh7 Bg2 f1N Qd3 f2 Ngf3 Rc8 a8B N1g3 Rhf1 h1Q Nh2 Nh4 Qe3 Qb6 Qa3+ Qc5 Be6 a1R Bf7 Re8 e5+ Ke7 e6 Kf6 d6 Kf5 d5 Ne4 e7 Nd4 Bg8 Ng5 Ne4 Nb5 Nf6 Qc7 Bf7 Kf4 Ng8 Nb6+ Ka5 Qb8 d7 Qd6 d8N Rc1 Be6 Rc6 Bc8 Ke5 Ne6 Kf5 Nc5+ Kf4 Nd3+ Ke3 Nb4+ Ke2 Rde1+ Kd2 Rc1 Ba6 Bab7 Na8 Ka4 Rb6 Bc6 Bb7 Rb1 Ke2 Rfd1 f1Q Rbc1 Qe1 Rb1 Qdg3 d6 Qf4 d7 Qd6 Bcd5 Rc6 d8Q Rb6 Rdc1 Kd2 Ba2 Rc6 Nd5 Rb6 Rd1+ Kc2 Ra1 Qdg3 Rab1 Rg6 Qdd6 Qge5 Qf6 Qd6 Qf8 Qc3 Rf1 Qcc6 Rbd1 Qg1 Nf3 h2 Bh1 Rd8 e8B Qe3 Bg2 h1N Nh2 Nf2 Bed7 Qe1 Bg4 Rf7 B4f3 Re8 Bh1 Rfg7 Bfg2 Rh7 Nb4+
2Rr3n/1n2r1R1/5k1B/Rn1r4/1BRn2b1/q2b1N1Q/qb3nK1/4Q1NB b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 h4 g5 a4 gxh4 Qb3 c5 Qc2 cxb4 axb5 a6 Qd1 axb5 Kf2 Ke7 g4 h5 e4 f5 d4 h3 d6+ Kf6 d5 b3 d7 b4 d6 h2 Qe2 b2 Kf3 b3 Qa6 h4 Be2 h3 Ra2 Nc6 Qa4 Ra7 Nc3 b1Q Bd3 b2 Bc4 Nh6 Qb5 Na5 Be6 Nf7 Qe2 Qe7 d8Q Bg7 d7 Nb7 Qe8 Qa3 Ra1 Qba2 Bd5 b1N Qd3 Rh5 Nb5 Nh8 Be3 Nc3 Nd4 Nb5 Rc1 Rg5 Rc4 Rh5 Bd2 Rg5 Kf2 f3 Qb3 f4 d8B+ Qe7 Bb6 Qea3 Ba5 Be6 Bc6 Rd5 Bb4 Bf5 Kf1 f2 Ndf3 Ra8 Qe3 Rad8 Qe1 Be6 Qd7 Bf5 Ke2 f1N Kf2 Ng3 e5+ Kg6 e6 Kf6 e7 Ne2 e8R Ned4 Ne5 f3 Qc8 Bc2 Bh6 Bf5+ Kg3 f2+ Nef3 f1B g5+ Kg6 Re7 B1d3 Re5 Kf7 g6+ Kf6 Qd7 Bg4 Rg5 Bf8 g7 Bc5 g8R Bf8 Ne2 Bg7 Rg1 h1R Re8 h2 Kg2 Bf8 Rg7 Bd6 Rf1 Be5 Rf2 Rf1 Neg1 h1N Rfc2 Nf2 R2c3 Q3b2 Ra3 Qc1 Ra5 Qca3 Qe3 Rb1 Qe1 Rb2 Reg8 Re2 Re8 Ne6 Qc8 Bb2 Reg8 Ned4 Qd7 Bh5 Qh3 Re7 Re8 Bg4 Reg8 R8d6 Rc8 Rd8 Nd2 Bgf5 Kg3 Rde5 Bh1 Red5 Kg2 Bg4 Ndf3
2R2N2/1N1b3B/Q1Bq4/1KNr1q2/1b3rQ1/4Rq2/1bB1Nnnk/3r2nb b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 Bb2 d5 cxd5 axb4 Ba3 b5 axb5 bxa3 d4 Kd7 Kd2 Kd6 Kc3 h5 Kc4 c5 e4 f5 g4 a2 g5 f3 g6 h3 b6 f4 g7 h2 b7 h4 Nc3 f2 Qb3 h3 Qb2 f3 Bg2 f1N Qf2 Nh6 g8B Ra5 Be6 Ng4 Bg8 Bd7 Qh4 f2 Rc1 a1B Bh7 Bb2 Na4 Nc6 b8N Rg8 Ne2 Nce5+ Kb3 c4+ Kb4 c3 Nc5 Nfe3 Rhe1 Nf3 e5+ Kc7 e6 Kd6 e7 f1Q e8B h1B Bc2 h2 Beg6 Nf2 Bh7 Ng1 Qg4 Be7 Bge4 Rf8 Bf3 Ng2 Bfe4 Bc6 Nbd7 Rf4 Nf8 Bd7 Kc4 Rb5 Bf3 Qb8 Bfe4 Bd8 Bf3 Ba5 Bfe4 Bb4 Bf3 Ke7 d6+ Kf6 Bc6 Qc7 Na6 Re5 Nc5 Rd5 Kb5 Qd8 Red1 Qe7 Rd3 Qe5 Re3 Qd1 Ra1 Qf5 Ra8 Qd2 Rc8 Qd1 Bb3 c2 Ba4 c1R Bc2 Re5 d5 Qd2 Qf3 Kg5 Qe4 Kh4 Qd4 Be6 d7 Rd1 d8N Bd7 d6 Rd5 Nb7 Kg4 Re7 Kh3 Qf6 Be6 d7 Qd4 d8Q Bd7 Qd6 Qde5 Qf6 Qd6 Re3+ Rf3 Qb6 Qff4 Qh8 Qf5 Re5 Rf4 Qg7 Nh4 Ka4 Bg2 Re7 h1Q Qa6 Kh2 Re3 Be4 Kb5 Qg2 Qa1 Qgh3 Ne6 Bh1 Nf8 Ng2 Qa6 Qf3 Qg4
nqq5/1Bbr2bN/5R1N/1Bqb3r/R3bRRB/6Q1/qk2Q3/2q1nK2 b - - 0 1 legal: proof: f4 a5 b4 d5 a4 e5 c4 exf4 cxd5 g5 e4 fxe3 h4 b5 axb5 gxh4 Rh2 axb4 Rh3 Qd6 Rh1 Qd8 g4 Kd7 d4 Kd6 g5 h5 b6 f5 b7 c5 g6 h3 g7 h4 Ke2 f4 Bd2 b3 Ba5 f3+ Ke1 e2 Qc2 b2 Qh7 h2 Nd2 b1Q+ Kf2 e1B+ Ke3 f2 Ke2 c4 Qf5 h3 Qg4 c3 Bb6 c2 Ra6 c1Q Ndf3 Nd7 b8R Ba5 Nh4 Nc5 Ngf3 Ne7 g8B Bf5 Rg1 h1Q Ng5 h2 Nh7 Ra7 Ra8 Rd7 Qg3+ Qf4 Be6 Qc8 Bd8+ Qb6 Bg2 Nd3 Kf1 Bg7 Bf7 Ne1 Be8 Be4 R8a7 Rb7 Bb5 Rd7 Bf3 Qbc6 Ra8 Bc7 Rb6 Ng6 Ra4 Nf8 Bg2 Ne6 Rba6 Bb6 Bg5 Qc5 Nf5+ Kc7 Nh6 Kd6 Bd8 Nc7 Bh4 Na8 Bf3 Re8 Bg2 Re5 Bf3 Rh5 Bg2 Kc7 d6+ Kb7 d5 Bc7 Rc6 Qd2 Bf3 Qa2 Bg2 Qd4 Rcc4 Kb6 Rcb4 Kc5 Bf3 Re7 d7 Qe5 d8R Rd7 d6 Qc3 Bc4 Kd4 Rf8 Qcb3 Ba6+ Kc3 Rf6 Kb2 Bb5 Bd5 Re4 Qe3 Rec4 Qc5 Rcf4 Qb8 Be4 Qf3 Rg2 h1B Rg1 Qfc3 Bf3 Bg8 Bb7 Be4 Rg2 Bgd5 Rg1 Rf7 d7 Re7 d8Q Rd7 Qe8 Qc2 Qd3 Qc1 Rgg4 Qc8 Qg3 Qcb1 Ke2 f1Q+ Kd2 Qfg1 Ke2 Qbc1 Qe5+ Qgd4 Qe6 Qe5 Qa6 Qee8 Kf1 Qb8 Qe6 Qec8 Qe8 Bc2 Qee3 Bce4 Qe2+
N1bnN3/kb1Q1rb1/5b2/7K/Bq1pRRQ1/1NB5/nB1b2N1/rb2n3 b - - 0 1 legal: proof: d4 g5 e4 b5 a4 f5 exf5 c5 h4 cxd4 c4 gxh4 b3 bxc4 b4 a6 b5 axb5 axb5 c3 Ke2 d5 Kf3 Kd7 Kg4 Kc7 f4 Kb7 b6 e5 g3 h5+ Kh3 e4 g4 e3 f6 e2 f7 e1B f5 d3 g5 d4 g6 c2 g7 d2 Ra6 Nh6 g8N Ng4 f6 Ne3+ Qg4 d1N Bb2 c1B Nd2 Qd6 Ngf3 Ng2 Nb3 Bcd2 Bb5 Bg7 f8N Qb4 f7 Rh7 Nf6 Nc6 Ba4 Nd8 Rf1 Nc3 Ne8 Na2 Ne6 Bg5 f8B B5f6 Rf2 Bd2 N6c7 Ne1 Qd7 Kb8 b7 Ra7 Rc6 Ra5 Re2 Ka7 Re4 Ra6 Na8 Ra5 Kh2 h3 Kg3 h4+ Kg4 h2 Be7 h3 Nh4 h1B Ng2 h2 Bc5+ Qb6 Bb4 Ra6 B4c3 Qb4 Rce6 Ra5 Rf4 Ra6 Nh4 Be4 Ng2 h1B Re7 Bb1 Ree4 Bh6 Kh5 Rf7 Bc6 Ra3 Ba4 Bhg7 Qg4 Nc1 Qd7 Ra1 Qg4 Na2 b8Q+ Ka6 Qd6+ Kb7 Nh4 Bf3 Ng2 Ka7 Re7+ Bfb7 Qdd7 Bh7 Re3 Bb1 Ree4
BbQ2bRq/5KNq/1p6/1r3N1n/QQ3Bpq/1r4q1/2Q2R1N/nr1k4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Bh3 exf4 Bg2 Na6 Bf1 Nb8 d3 hxg4 Kf2 c5 Nf3 c4 Ng1 c3 Ke1 Bf5 a3 bxa3 Qc2 Bd7 Qa4 Bb5 Qd1 Bc4 dxc4 Rh4 Nf3 Rh3 Ng1 Rh8 Kf2 Ke7 e4 Kd6 h4 Ke5 c5 f5 c6 g5 h5 c2 c7 f3 Ke3 g3 c8Q g2 d6 b6 h6 f4+ Kd3 f2 Kc4 f3 h7 g4 d7 a2 Ne2 g1Q Qe1 Ra5 Bg2 f1Q Qb4 f2 Rh2 Nf6 Nd2 Nh5 Qa4 Qf6 d8Q Nc6 Qd3 Nd4 Ng3 Kf4 e5 Nb3 e6 Rb5 e7 Qh4 Ba8 Qfh3 e8N f1R Nf5 Qgg3 Neg7 Rf3 Rf2 Qh1 Bb2 c1B Nf1 Be3 Rd1 a1Q Nh2 Bd4 Qc5 Be5 Qcb4 Bb8 Qc2 Qb1 Rd8 Na1 Rfd2 Rb3 Bc1 Bfd6 Rg8 Bf8 Kd4 Qb2+ Kc4 Qb7 Qc5 Qa7 Kd5+ Qd4+ Ke6 Rb1 Ne7 Ke3 Qcb4 Qd8 Kf7 Qc8 Qc7 Qab7 Rc2+ Kd3 Bd2 Ke2 Bf4+ Kd1 Nef5 Qe7+ Kg6 Nf6 Ne6 Qgg2 Nh6 Qcd7 Qbc5 Qd4 Rf2+ R5b3 Qcb4 Qg3 Qcc3 Qed8 Qb2 Qbe4+ Kf7 Qde5 Rg7 Rg8 Q2c3 Nh5 Qc7 Qdh4 h8Q Bc5 Qh7 Bf8 Qc8 Qc2 Rg5 Qh8 Qhe4 Qcd3 Qec4 Qdh7+ Rg7 Bc5 Qcc3 Rd8 Nf5 Bf8 Q3c4 Rd5 Qc4c6 Qh6 Rg8 Q6h7+ Neg7 Rb5 Qc2+
B1q1r2r/2p2pQ1/2Qb1BR1/4rqn1/2kq4/B4B2/Nn2R1b1/KNr3R1 b - - 0 1 legal: proof: f4 a5 b4 d5 a4 e5 c4 exf4 cxd5 g5 e4 fxe3 h4 b5 axb5 gxh4 Rh2 axb4 Rh3 Qd6 Rh1 Qd8 Nc3 Kd7 g4 Kd6 d4 h5 g5 h3 g6 b3 b6 h2 b7 h4 g7 e2 Kd2 e1R Qf3 b2 Kc2 b1R Bg2 h3 Nge2 Rh4 Ra2 Bd7 Rg1 Nf6 g8B Nh5 Bh7 Ng7 Be4 Nc6 b8R Na5 Rb6+ Bc6 Qg4 Ne6 Qg7 Rb5 Nb1 Rh8 Nec3 Ng5 Ba3+ Rc5 Kb2 Rc1 Ka1 Nc4 Rf2 Nb2 Na2 Qf6 Ra6 h1Q Re2 Qf1 Rb6 Qh2 Bh1 Qe5 Bhg2 h2 Bh1 Ke7 d6+ Ke6 d7 Re8 d8B Qf2 Bhg2 h1Q d5+ Kd6 Ra6 Qh3 Bh1 Qc8 Rb6 Kd7 d6 Ke6 d7 Qed4 Be7 Qf5 d8Q Re5 Beg2 Qcd7 Qa8 Qc8 Bd8 Bb4 Bd5+ Kd6 Bde4 Kc5 Ra6 Bd5 Rg6 Kc4 Bf6 Bd6 Qb7 Bc6 Qb6 Ba4 Ba8 Bc2 Bhc6 Be4 Bcb7 Bh1 Bf3 Bg2 Qc6+
3R1Q2/2rn1p2/2Q2pBb/p2B2k1/b4q1b/K1R1N3/nr4r1/1NBqR1B1 b - - 0 1 legal: proof: b4 b5 c4 a5 h4 d5 cxd5 g5 a4 gxh4 axb5 Nh6 b6 Na6 b7 Ng8 f4 Nxb4 f5 Nc6 f6 exf6 Qc2 Nb8 Qe4+ Kd7 Qe8+ Kxe8 Kd1 Ke7 Kc2 h5 Kb2 c5 d4 h3 g4 h4 e4 h2 d6+ Ke6 e5 h3 g5 Kf5 g6 c4 d7 Qc7 d8R Bd6 g7 Bd7 d5 Ba4 e6 Ra7 e7 Bg3 e8Q c3+ Ka3 c2 d6 Bh4 d7 Ne7 g8B Nec6 Bc4 Qf4 Bh7+ Kg5 Bd5 Nb4 Bg6 Na2 Ne2 Rg8 Re1 h1Q Nd4 h2 Nf5 Qf3+ Ne3 h1R Qe4 Rh2 Qe6 Qd1 Qc6 Na6 b8Q Nc5 Qbd6 Rc7 Qf8 Rg2 Rb8 Rf2 d8B Nd7 Rb3 Rg2 Rc3 Rg7 Be7 Rh7 Bc5 Rh8 Qfd6 Rb8 Qf8 Rb4 Nf1 Rb2 Bg1 Nc5 Re8 Nd7 Rd8 Rb5 Bb2 c1B Ne3 Bd2 Bc1 Rb8 Bh7 Rb2 Bg6 Qe4 Ng4 Be3 Nd2 Qdf3 Rb1 Bf4 Ne3 Qd4 Nec4 Kg4 Ra1 Bh6 Ne3+ Kg5 Rb1 Rb6 Bb2 Qdf4 Re1 Qd1 Bc1 Rb2 Nb1
2n3QK/p2r1p2/bN1R2p1/r5QR/1bqNQ2B/Q1p2r1b/1B5k/q4R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 b6 d5 b7 dxc4 b4 c5 Bg2 Bd7 Bd5 Nc6 Be6 Rc8 b8Q Nce7 Qa8 Nf5 Bxf5 Rc7 Bc2 Rc6 Bb3 cxb3 Kf2 Ke7 h4 Ke6 d4 Kf5 e4+ Kf6 d5 Ke5 h5 c4 h6 f3 Ke3 f2 d6 f1R h7 g6 b5 b2 b6 c3 b7 g3 b8R g2 Nf3+ Ke6 Kd4 Nh6 e5 Kf5 e6 Kg4 Ke5 Kg3 e7 g1Q Kf6 Rf2 Qa4 Qb6 e8Q Kg2 Nd2 b1B Bb2 Nf5 Qa3 Kg3 Rh5 Bc2 Nd4 Qb3 Nc4 Bd3 Rb6 Rc7 Qe7 Rf3 Rf1 Bc8 Qd5 Rd7 Qee4 Ne7+ Qdf5 Kg2 Ra6 Be2 Nb6 Qc4 Qff4 Qe3 Qff5 Qc1 Qff4 Qa1 Qff5 Rg8 h8Q Bd3 Qh7 Rh8 Qg8 Be2 Rg5+ Kh2 Rh5+ Rh3 Qg5 Bg4 Ra5 Ba6 Rb5 Nc8 Rd5 Be7+ Kg7 Bf5 Qh7 Re8 Qg8 Bf8+ Kh8 Re5 Rc5 Bg4 Rc7 Ra5 Rc6 Rc7 d7 Bb4 d8B Rd7 Rd6 Be6 Qc1 Bf5 Bh4 Rf3 Qh6 Bh3 Qg5
5Q1q/rn1BNN1q/1b2RQR1/1KB2n2/3Bkr2/q3b1q1/1Bq2Q2/n1r2r2 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Nd2 Ba6 Nb1 axb4 Bd2 b3 Be3 b4 Bc1 Bb5 axb5 Qc8 Bh3 Qc7 Bf1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 d5+ Kd3 g5 c4 f3 b6 f2 c5 b2 h5 b3 c6 g3 e3 g4 h6 g2 b7 g3 c7 Nd7 b8B Ra7 c8Q Bc5 h7 Nh6 Be2 f1N Bd6 Rf8 h8B Nd2 Bf4 Bb6 Nf3 g1B Bf6 g2 Nc3 b1Q+ Qc2 b2 B4e5 Nb3 Nd2 Qa2 Bg5 b1Q Bh8 Qa3 Qc6 f6 Ra2 Na1 e4+ Ke5 Bh4 Be3 Re1 g1Q Bf2 Qg3 Bg4 Nf5 Bb2 Kf4 e5 Nc5+ Ke2 Qb8 e6 Nb7 Kd3 Rf7 Bg7 Qh8 e7 Rf8 Re2 Qbh1 e8Q Q1h7 Re1 Rf7 Qf8 Ke5 Nc4+ Kf4 Ke2 d3+ Kf1 d4 Ne5 d2 Ke2 d1R Nd5+ Kg5 Rg1 Rc1 Ne7 Kf4 Re1 Ba5 Qe6 Bb6 Qc5 Ke4 Qed6 Nh6 Bd7 f5 Qf6 f4 Rg1 Nf5 Rg2 Qgh4 Rg6 Qg3 Bg1 Bf2 Kd2 d3 Bd4 f3 Rb2 Bd8 Rb6 Bc7 Re6 Bb6 Bb2 Bd4 Qc2 f2 Qc5 f1R Bf2 Qa4 Qc2 Be3+ Kc3 Qa5+ Kc4 Qa3 Bg1 Rf4 Kb5 Rff1 Qh2 d2 Qf2 d1Q Qd2 Bg5 Bc5 Qc2 Qf2 Be3 Qg5 Nh4 Qh6 Rf4 Nf7+ Kd3 Bge5 Ke4 Qg5 Nf5 Qf6 Qh6 Bbd4 Qhh4 Bb2 Q4h7 Bed4+
2NB1b1b/r3n3/QQ2n1n1/1q4b1/1k1nNBK1/r2b3Q/1qn1nNQ1/3R1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 h4 Ke7 c4 Kd6 b4 g5 e4 f5 Ke2 a5 Kf3 d3 b6 a4 h5 g4+ Kf4 a3 b5 Kc5 h6 d5 e5 d2 h7 a2 b7 d4 e6 d3 e7 Nc6 b8N Kb4 e8Q Qf6 c5 Nce7 b6 Ba6 c6 Qb2 b7 Ng6+ Kg5 f4 c7 f3 c8Q f2 Qee1 f1Q Qf2 N8e7 Qc6 Ra7 Qde2 d1N Nd7 d2 b8B Nc3 Nh3 g1N Qee3 d1N Qfg2 Nf3+ Kh5 Ncd5 Nf6 Qb5 Re1 Nd4 Qh6 N1e3 Qe6 Nec2 Nf2 Nc7+ Bg5 Rg8 Qb6 Nce6 h8Q Rg7 Qg1 g2 Na3 g3 Rad1 a1B Rf1 Rh7 Qh1 g1N Nc4 g2 Kg4 Nge2 N6e4 g1B Ncd6 Bh2 Qg1 Bf4 Nc8 Be3 Bf6 Bg5 Qg2 Rg7 Bc7 Rf7 Bfe5 Rf3 Bf4 Ra3 Bd8 Bb7 Nc3 Be4 Qa6 Bd3 Nce4 Nb3 Qhh3 Nbd4 Q8h6 Qb1 Bd6+ Nc5 Rg1 Nf3 Rd2 Ngh4 Rdd1 Bh8 Qg6 Nfd4 Bb8 Qb2 Qgb6 Nce6 Bf4 Nhg6 Rgf1
3q4/1nQN3R/1R1R2Nn/1R1B4/1b1qb1kq/b1r1Bq1q/4N3/Qr1q1bK1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 Ke7 c4 Ke6 e4 f5 h4 g5 b6 d5 e5 g3+ Kg2 g4 c5 d3 c6 d4 h5 b3 c7 d2 b7 b2 h6 d3 h7 Ba3 Be2 f3+ Kf1 g2+ Kf2 f4 Qb3+ Kf5 e6 d1Q e7 d2 e8R Na6 b8R Nc5 Rb7 Nh6 Qg8 Rb8 Ra7 Bb7 c8N Be4 Bb5 Nb7 Nc3 b1Q Bf1 Qb4 Qg7 Qdb3 Ba6 d1Q Na4 Qbe7 Rh3 Qh4+ Rg3 Rf8 h8Q Rf6 Qe7 Rc6 Rb1 Rc3 Ne2 Q1d4+ Be3 g1B+ Kf1 f2 Qc7 Qbd5 Rh3 g3 Nab6 Kg4 Rb5 Qdh5 Rh2 Qh3+ Rg2 Q5h4 Nd7 Bb4 Re6 Ba3 Nc1 Bh2 Ne7 Bb4 Ke2 f1B+ Ke1 f3 Ng6 Bg1 Ne2 Bh2 Rf2 g2 Rd6 g1Q Rbb6 Be5 Bc4 Bf6 Ra5 Be7 Rab5 Ba3 Bd5 Qgg3 Re6 Beb4 Red6 Qf4 Ng3 Qff6 Rh2 Qd1+ Kf2 Qfd4 Kg1 Bed3 Kh1 f2 Bg2 Qf3 Ne2 Be4 Qg7 Qc4 Qd4 Qc5 Qd1 Qd4 Qa1 Ng8 Bf4 Bd3 Ngf8 Qhe7 Bd2 Ba5 Qc1 Qfe3 Rf6 Qh8 Qc2 Nd6 Bc6 Bh3 Rb3 Bf5 Bd5 f1Q+ Ng1 Qb1 Qc1 Bf1 Ne2 Qeh7 Qb2 Qd1 Ng6 Qf7 Rh3 Be4+ Kh2 Qfh7 Rc6 Qf3 Qa1 Rb4 Rh6 Nb7 Rfd6 Qhf6 Be3 Qh3+ Kg1 Qff3 Nc5 Qhe7 Rh5 Qeh4 Rh7 Nh6 Rb6 Rb5 Rb2 Rbb3 Nd7 Rb4 Ra2 Rb1 Rab2 Q1d2 Nef4 Qdd1 R2b5 B5b4 Ne2
1Q2nr1N/Nb1q4/qrR1k1q1/7q/1n3q2/NBQN3n/1Qq4n/1RqBK3 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd3 f4 Nb1 h6 Qd1 Bd6 Be3 f2+ Kd2 f3 Bg5 Bf4+ gxf4 hxg5 f5 Kf7 Kd3 Kf8 Kd2 Ke8 h4 Kf7 e4 d5 a4 b5 c4 g4 f6 g5 a5 d3 a6 g3 a7 g2 c5 g4 c6 d4 h5 g3 e5 b3 c7 b2 h6 b4 h7 b3 Nc3 b1Q Nb5 b2 Ra3 Qa2 Rh5 b1Q+ Qc2 Bb7 c8Q Na6 Rg5 Rb8 a8B Nb4 Be2 f1Q Bd1 f2 Rg4 Qd7 Ne2 g1Q Na7 g2 Nc1 Ke6 f7 Nf6 f8Q Ne8 Rb3 Qa6 Qb2 Qba2 Qfc5 Rf8 h8N Qb1 Qcc3 Qh2 Q8c7 g1N Rf4 Qh5 Qd8 Nh3 Qdc7 Rc8 Qb8 Rc6 Re4 Rb6 Rh4 Kf5 e6 Kf6 e7 Ke6 Ra3 Qg6 Ra1 Qba2 Rb1 Q2c4 Nb5 Qfg1 Rf4 f1N+ Ke1 Qcc7 Rh4 Qf4 Na3 Q1g5 Rg4 Nh2 Rh4 Nc7 e8N Q5h5 Nd6 Ne8 Nhf7 Qda4 Rg4 Qd7 Ndb5 d2+ Ke2 Nf3 Nh8 d3+ Kf1 Qh2 Rc4 Qf4 Bb3 d1Q+ Qe1+ Qge4 Na7 d2 Nd3 Qc2 Qg3 Qeh7 Qgg7 Q7g6 Qgc3 Bc8 Bc6 Bb7 Bca4 d1Q+ Ne1 Q1d5 Nd3 Nh2+ Ke1 Qcc1+ Bd1 Qdg2 Bb3 Qgc2 Rc6+
3nq1N1/4R3/q1q4Q/BN1b1bb1/1bR2k2/2br4/1B1RQ1Bq/Kn1Rbq2 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Ra7 Bc1 Rb7 Nd2 axb4 Nb1 b3 Ke2 b4 Ke1 Rb5 axb5 Rh5 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 c4 Ke6 h4 Kf5 f4 g5 c5 e5 h5 d5 h6 d3 h7 e3+ Ke1 b2 b6 g3 b7 e4 c6 g2 c7 b3 Be2 g4 Rh2 g3 Ra5 Bb4+ Bd2 Nf6 Rc5 Nc6 b8R Be6 c8Q Qe8 Rb6 Nd8 Rc3 d4 Rb5+ Nd5 Nf3 g1Q+ Bf1 g2 Rb6 e2 Rh3 Qh2 Rb7 g1B Ne5 Be3 Rc2 Nc3 Nd7 Bd5 Na3 b1Q Nb5 b2 Qc6 Qc1 Bg2 b1B Qh6 Rg8 h8R Rg3 Nf6 Qa3 Rg8 Qa6 Rh4 Qac6 Rb2 Bc2 Re7 Nb1 Rh8 Qa6 Bc3 Bc1 Ng8 d2+ Kf2 e1B+ Ke2 e3 Ra2 Qa7 Bb2 Qa6 Ra1 Bce4 Qc2 Qac6 Kd1 Bc3 Qd3 e2+ Kc2 Re3 Rh5+ Kg4 f5 Rg3 f6 Bf5 Rg5+ Kf4 f7 Rf3 f8B Re3 Be4 Rg3 Qc4 Rd3 Bg2 Qa6 Rhh7 Qac6 Kb3 d1Q+ Ka2 Qc2 Rd7 Qa4+ Bfa3 Bb4 Rhe7 Bec3 Rd6 e1B Rh5+ Kg3 Rh4 Bg5 Rf4 Qaa6 Rfe4 Nd2 Rd1 Nb1 Rh4 Qab6 Ka1 Qa6 Rh5 Kf4 Rd2 Rh3 Qe2 d3 Rd1 d2 Rdd7 Re3 Rh4+ Kg3 Rc4 Rd3 Rc1 d1Q Rd6 Qd2 Rd1 Qf4 Rdd7 Qf1 Rd2 Ba5 Bc5 Bcb4 Bb6 Bc3 Rd1 Bab4+ Ba5 Bcf6 Rc2 Kf4 Rcd2 Bfc3 Rc7 Qca8 Rc5 Qa8c6 Rc4+
2b1b3/kq3NK1/2bB1RnR/1r1B4/2nNqR2/nbnN4/1nQR4/Q3bn2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 h4 exf4 g3 b5 Qd3 g5 Qd2 Ra6 Qd1 Rg6 Rh3 g4 Rh1 Rg5 hxg5 fxg3 Kd2 h5 Kd3 d5 e4 Kd7 a4 Kc7 c4 Kb6 a5+ Ka7 e5 f5 a6 b3 e6 h4 g6 b4 e7 f4 e8Q f3 g7 f2 c5 h3 c6 g2 c7 b2 Qde1 b3 Qh5 g3 Qf7 h2 Qb4 Qe7 Be3 Rh5 Qf3 Nc6 Nh3 g1Q Qg2 Qe4+ Ke2 Na5 Qc4 Bb4 Nc3 b1N Ra2 b2 Nf4 Na3 Nd3 b1B Rd2 Ne7 g8R Ng6 Qa2 N5c4 Qa1 Ba2 Rg7 Bb3 Rf7 Ba4 Rf6 Be8 Qh3 Re5 Bg2 Qb1 Qh7 f1N Bf3 g2 Nb5+ Ka8 a7 g1N+ Kf2 Ne2 Bf4 Nc3 Kg2 Rf5 Kh3 Qb3 Kg4 Qb2 Ne1 d3 Nd4 Kb7 a8R Qb1 Rb2 d2 Nd3 d1B Ra4 Bb3 Ra2 Ba5 Rd2 Ka7 Rb4 Qe6 Bg3 Qa6 Bd6 Qb7 Qe7 Qe1 Qe4 Re5+ Qf5 Qe2 Kh5 Qe4 Ne2 d4 Kh6 Rb5 Kg7 Qh4 Bd5 Qe4 Rg1 h1B Rg4 Qa6 Rh4 Qb7 Rh6 Bg2 Ne5 d3 Nd4 Bh3 Qf2 Bhd7 Qe2 Bc6 Qed1 Bb6 Qc2 Ba5 Nd7 Qf4 Rdh2 Nce5 Bc4 d2 Bd5 d1N Nc5 Bh3 Ne2 Na2 Nd3 Nb2 Rc4 Qf5 Rf4 Nec4 Nd4 Be1 Rd2 Qe6 Be7 Qe4 c8N+ Ka8 Nd6 Ka7 Nf7 Bc8 Bb4 Nc3 Bd6
n1Q3N1/R1nb4/qb1Qk3/N1n2q1n/b1b1N3/2r4Q/Bb2R3/1b1Q1qBK b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 h4 exf4 g3 b5 Qd3 g5 Qd2 Ra6 Qd1 Rg6 Rh3 g4 Rh1 Rg5 hxg5 fxg3 e4 Ke7 c4 h5 a4 f5 e5 d5 e6 h4 g6 b3 a5 g2 Kf2 f4 g7 h3 a6 h2 a7 g3+ Kf3 d3 a8Q d2 c5 d4 c6 b4 c7 b2 Ra4 d3 Qe4 b3 Qa8 Nf6 g8Q Nd5 Rc4 Na6 Qb7 Nc5 Rd4 Qd6 Qc6 Nb6 Nc3 b1Q Ba3 b2 Qh7+ Bg7 Qf5 Bd7 c8Q Rh3 Qca4 Na8 Qe5 Qa6 Qdc2 d1B+ Nge2 g1Q Qc4 d2 Q4d3 Bh8 Qc1 B1a4 Re4 d1N Nd4 Ne3 Qcd1 Nd5 Re2 Ndc7 Nb3 Qc2 Qee3 b1B Ne4 Bb2 Qd3d2 Qcd3 Na5 Qd5 Bg2 Qf5 Bb4 Qe1 Bc3 Qg1 Bd4 Qe1 Rg1 h1N Qeb3 Qf1+ Bf2 Rh8 Bh3 g2 Qdd5 Rd8 Qd6+ Ke8 e7 Ng3 Qa3 Kf7 e8N Nh5 N8f6 Rf8 Rh1 g1B Ng8 Re8 Bg4 Re5 Rh3 Rd5 Qe3 Rd3 Rh2 Rc3 Bh3 Qe1 Kg2 f3+ Kh1 Qf1 Bg4 Ra3 Qed3 Rc3 Bd4 f2 Qh3 Qe1 Bf3 f1B Bf2 Bc1 Ra2 Bc4 Bd4 Bb2 Re2 Qf1 Ra3 Bh2+ Bg1 Bg3 Nef6 Bf2 Bd5+ N5e6 Ne4 Bb6 Bc6 Nc5 Bb5 Bd5 Bc4 B5e6 Ba2 Bc4 Rb3 Ba7 Rb7 Bb6 Q6d2 Ke6 Ra7 Nd5 Qdd3 Ndc7 Qd6+
R1k1bB2/qN3nKQ/r5b1/2r2bn1/N2B3B/B1np2q1/qrb5/3R1R1Q b - - 0 1 illegal: No possible last move
1Bbn1N2/2qr4/1R1qbQ2/1p1R1n2/3rrNK1/2n1kB2/1r2R2q/1B1Q2Bb b - - 0 1 legal: proof: b4 a5 h4 b5 f4 g5 d4 gxh4 a4 e5 Ra3 exf4 Ra1 Bc5 d5 axb4 a5 Bb6 d6 cxd6 axb6 d5 Ba3 d4 Bb2 Ra5 Bc1 Ra8 Kf2 Ke7 Kf3 Ke6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 d3 b7 Kd4 g7 h3 c5 h2 e5 h4 e6 b3 e7 h3 e8B d2 c6 b2 c7 Ne7 g8R Ra2 Qe2 d1Q Na3 b1N Rg3 Rh4 Rg8 Nc3 Rf8 Rb2 Bh5 Nbc6 Kf2 f3 Kg3 f4+ Kf2 Nf5 b8B Qd7 Qc2 Nd8 Bd3 Qd6 Qe2 Qc2 Nc4 Be6 c8Q Rg4 Kf1 f2 Ra6 Rg7 Bd2 Rd7 Qd1 Qc1 Be1 Qc2 Nb6 Ke3 Bf3 d4 Bde4 d3 Qc6 d2 Ne2 Qc1 Rg1 h1Q Bb1 Qh2 Rg5 Qc2 Na4 Qc1 Nc5 Qc2 Rb6 Qc1 Qa4 d1R Rf7 Rd4 Qd1 Qc7 Qd6 Qd2 Qe7 Re4 Qf6 Qdd6 Rh5 Qg3 Rg5 h2 Rh5 Qh4 Kg2 f1R Rf8 Qf2+ Kh3 h1B Kg4 Qh2 Bh4 Re1 Rg5 Rd4 Bg3 Bd5 Ne6 Bb3 Rf7 Bd5 Nf8 Be6 Bd5 f3+ Nf4 f2 Bf3 f1B Rh5 Qf2 Bh2 Bd3 Bg1 Be4 Rh2 Bb7 Rg7 Bc8 Rg5 Ng3+ Kh4 Ree2 Rd5 Nf5+ Kh5 Red2 Kg4 Re4 Rg2 Rdd4 Bh2 Qe1 Rf2 Qf1 Bg1 Qh3+ Kg5 Qh6+ Kg4 Qh2 Re2#
5KNn/1bq1R3/1Nb1b3/3rNb1k/rpB1BR1N/Q2n4/4Q1n1/R1q2bb1 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Bb2 exf4 Ba3 bxa3 Kf2 b5 Kf3 c5 Ke4 f5+ Ke5 Kf7 e4 Kg6 d4 h5 g4 a2 a5 b4 d6 f3 d5 h3 a6 f2 d7 h2 Ke6 f4 a7 c4 e5 h4 d6 h3 g5 c3 Qc2+ Kh5 Kf7 f3 e6 Na6 e7 Nh6+ Ke6 Nc5+ Kf6 Qc7 d8R Bf5 e8Q+ Nf7 d7 Nd3 g6 Bc5 Qc1 c2 Qa3 c1Q Kg7 Be6 Be2 f1B Nd2 Bg2 Bf1 f2 Nc4 Be4 Nf3 B4f5 Nb6 Be3 Rg1 h1B Nh4 h2 Rg4 Bb7 Rf4 h1B Rc8 Bhd5 d8N Bdc6 Rb8 Rh7+ Kf8 Nh8 Nf7 Bd4 Ne5 Rd7 Rd8 Rd5 Rd7 Be3 Re7 Bd4 Bg2 f1B Be4 Bg1 g7+ Kg5 Rb1 a1N g8N Nc2 Ra1 Nce1 Kg7 Rc8 a8B Ng2 Kf8 Rb8 Qa6 Rbd8 Qa3 Ra5 Bd5 Ra4 Bc4 Rd6 Nh6 Rd5 Qh5+ Kf6 Qe2 Kg5 Ng8 Rb5 Ra2 Be8 Neg6 Bbc8 Qeb2 Kh5 Be4 Bb7 Ra1 Bec6 Ne5 Rd5 Qe2+
2r2R2/pB6/3R2K1/1q3rbB/2B4b/3b1Q1r/r2Qnb1k/N1rNnNNn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 c4 Kh4 Kf5 g5 e4 d5+ Ke5 f5 b4 g2 c5 d3 h3 Kg3 b6 d4 h4 f4 h5 f3 h6 d2 c6 f2 b7 d3 h7 Na6 b8Q Nf6 c7 Qd7 b5 Nb4 b6 Bh6 b7 Nh5 Ra3 Nc2 Rc3 Ne1 Rc6 Nf4 Kf6 Ne2 Qc1 d1N e5 d2 Rd6 Qb5 Nc3 Bf5 e6 Bd3 Qf8 Re8 b8N Rc8 Nh3 g1B e7 Bh2 e8B Bg1 Na6 Bh2 Bg2 f1R+ Bf3 Bg1 Bh5 Nf2 Nb4 d1R Bb7 Rd2 Nd1 Ra2 Nc2 Bh2 Qf7 Bg1 Rh2 Nh1+ Rf2 Bh2 Qd2 Bg1 Rf4 Kh2 Qf8 g3 Na1 Bf2 Ng1 g2 Bd5 g4 Bc4 g3 Rf3 Ra8 c8B Bg5+ Kg7 Bh4 Bb7 Rc8 Qf5 Be3 Kg6 Beg5 Qe4 Rf2 Rf8 Rf5 Qf3 Rc7 Rff6 Rhc8 h8N Rh7 Nf7 Rhh8 Nh3 g1R Ne5 g2 Rf8 Rf1 Ng1 Rh7 Bb3 Rh8 Nc4 Rh7 Nh3 g1B Nce3 Bgf2 Bc4 Ng2 Nb2 Rc1 Nbd1 Ne1 Ng1 Bhg3 Bg4 Rh3 Bh5 B3h4 Nf1+
QbqQQ3/2rrRq1n/R2n3n/3r4/1Bp3B1/b1K4N/rQ1r4/1k1N2Rn b - - 0 1 illegal: No possible last move, all moves rejected
1NRn3K/3q1N2/p2B1Q1n/1N3qn1/1r6/q1Q2brR/nN4R1/b1k1B1qn b - - 0 1 illegal: No possible last move, all moves rejected
2QN4/pN1b3Q/2bqrr2/1q2nkNK/1rqR2r1/2n3rR/1N1R4/B2B1q2 b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 a4 b5 g3 bxa4 Be3 c5 Bd2 cxd4 Bc1 Bh6 Rh2 g4 Rh1 Bg5 hxg5 fxg3 b4 Ke7 e4 Ke6 Ke2 d5 c4 f5 e5 h5 b5 h4 g6 a3 c5 g2 b6 g3 Kf3 d3 c6 h3 g7 h2 b7 a2 c7 f4 Kg4 d4 Bd2 f3 Be3 f2 Nh3 g1R Qe1 d2 Bg2 f1R Bc6 d1Q+ Qe2 d3 Be8 g2 Bh6 d2 Bh5 Qe8 Nc3 Nc6 b8N Qa4+ Qe4 Nge7 g8R Qc4 Nd1 Nd5 Bg7 Rh6 Rb1 a1R Rb2 Ra3 Rh8 Qd7 Rd8 Rb3 Kg5 Rb4 Qh7 Re1 Be2 Rh4 Bf3 Rg4+ Kh5 Re3 Bh8 Rge1 Rc2 g1Q Bg7 Qgf1 Ng5+ Ke7 Be2 Reg3 e6 Kd6 Bb2 Nc3 e7 Ke5 e8N Kf4 Bf3 Re6 Ba1 Ne5 Nd6 Qdb5 Nb2 d1Q Nb7 Qd2 Rd3 Bd7 Nc6 Rf8 c8Q Rff6 Ncd8 Qdd1 Rd6 Qdd5 Rd2 Qdc6 Qe7 Kf5 R6d4 Qcb6 Bd1 Qd6 Rg1 h1B Qg7 Be4 Rh1 Bg2 Rh3 Bgc6 Qh7+
3r1bBK/1Br3Q1/1qb1nRq1/1r1R3n/1qQ2BN1/7r/n1k3p1/1N1q1R1B b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Ke5 h4 g5 c4 d5 e4 f3 b6 g3 h5 b3 c5 b2 b7 g4 h6 f4 h7 g2 c6 f2 c7 g3 Ra3 f3 Ne2 g1Q Nd2 b1R Ra4 Nf6 Rc4 Nc6 b8R Bb7 c8B Qb6 Qc2 Rb5 Nc3 Nd8 Rc5 Bc6 Bb7 Nh5 Ncb1 Ne6 Bg2 f1R Qc4 f2 Rc8 Kf4 e5 Re1 Re8 Rd8 Nf1+ Kf5 Bd2 Rc1 Nh2 Qe1 Be3 Qb4 Rf1 Rc2 Bh1 g2 Bf4 Rc3+ Kd2 d3 Ng4 d4 Rd5 Ke4 Re7 Qd6 Rf7 Qb4 Rf6 Rc2+ Kd1 d2 Ke2 d1N+ Bd2 Rc1 Bf4 Nc3+ Kd2 Rg8 h8Q Na2+ Ke2 Rc3 Qg7 Rc8 Kd2 Rc7 Ke2 Rh8 Kd2 Rh3+ Kc2 Ng5 e6 Rg8 e7 Ne6 e8B Rh8 Rd1 f1Q Bf7 Qf3 Bg8 Qg3 Ne3 Qg6 Ng4 Ra3 Rf1 Ra8 Kd1 Rd8 Ke2 Rh6 Kf2 Rh8 Qc1 Kd3 Kf3 Qa4 Qc5 Qc4 Qb4 Kc2 Qc5 d3 Qb4 Qc3 Qc4 Qe8 Ke4 d2 Kf5 d1Q Qd4 Qb2 Ke5 Qb4 Kf5 Qee7 Kg6 Qed6 Qc4+ Kb2 Qh7 Neg7 Nh6 Ng3 Ng4 Qe6 Qh6 Qe4+ Rdf5 Ne6 Qg7 Rh3 Qh6 Qec2 Qg7 Nh5 Kh7 Qcd3 Kh8 Qe4 Qd4+ Kc2 Rd5 Qg6 Qc4+
1b3q2/R1B1qRQQ/6Nb/k2n1n2/1n1Q1N2/r1nN1Kp1/Q3r2B/r1br4 b - - 0 1 illegal: No possible last move
b1N4R/1bB2Rb1/4R2q/K1k2qqN/N2nnr2/1p2R3/2nQBrQn/b7 b - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 e4 Kd7 d4 Kd6 Kd2 c5 Kc3 b5 g4 f5 g5 h5 g6 a2 g7 f3 Qd2 h3 Qf2 h2 Qg2 c4 Kb4 h4 Nd2 h3 Be2 f2 Ngf3 f1Q Qg5 f4 Nh4 c3 Nb1 c2 Ng2 f3 Nf4 f2 Qg2 Qg5 Nc3 Na6+ Ka5 b4 Nh5 b3 Na4 Nf6 g8N Bg7 Ne7 Bb7 Bd2 Rhb8 Re1 c1N Be3 a1B Bf4+ Qe5 Rg1 h1B Bh2 Rf8 Nc8+ Kd7 Bf4 Qg5 e5 h2 d6 Ne4 d5 Rb8 Bg3 Nb4 Bf4 Nc2 e6+ Ke8 e7 Kd7 Bg3 Rf4 e8R Ba8 Re6 Rb4 Bd3 Ne2 Ba6 Ned4 Re3 Rb7 Be2 Qb1 Re1 f1N Rf6 Rf2 Rf5 Rb4 Rf7+ Kd8 d7 Rc4 Rf4 Kc7 d8R Rb4 Rf5+ Kb7 d6 Kc6 d7 Rc4 Qf3 Bg2 Bc7 h1Q Rh8 Nh2 d8Q Rb4 Rg1 Qf1 Qg4 Bf3 Re5 Qh3 Qg3 Qhf5 Rb1 Qc1 Qg2 Qd2 Rf1 Qh6 Rd3 Qdg5 Re3 Ng3 Qe7 Qfg4 Rd8 Ne6 Bd3 Rd2 Ree1 Be4 Rf4 Rf2 Rf7 Q4f5 Rh8 Bd5 Ba6 Rbf4 Qb4 Ned4 R1e3 Ne4 Be2 Bb2 Nab6 Ba1 Qd2 Kc5 Re6 Bdb7 Na4+
4b2R/1b1r2qQ/2nRK3/n1q2QBb/bN2NNpr/3N4/4B1qk/2qr1Q2 b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 b5 a4 h5 c4 b3 e3 b4 g6 d3 g7 h4 a5 b2 c5 g2 c6 h3 a6 b3 a7 d2 e4+ Kf4 c7 Kg3 e5 f5 e6 h2 e7 f4 e8Q f3 Qf7 f2 Na3 b1Q Nf3 g1Q Bh3 f1B Bb2 Nc6 Qe2 d1R+ Qd2 Bb7 c8Q Qf8 Qd4 Na5+ Ke5 d5 Qe4 d4 Qcf5 d3 Bc1 d2 Ne1 b2 Ke6 Rd8 a8N Rd7 Nd3 Ne7 g8N Rh4 Nf6 Qc5 Nc2 Nec6 Ncb4 Qg7 Nc7 Qa2+ Qc4 b1B Ncd5 Qa3 N5f4 Be2 Re1 h1Q Ne4+ Kh2 Bf1 Qg2 Qg8 Bf3 Be2 Qac3 Qgh7 Qc2 Bb2 Qc1 Bf6 Ba2 Bg5 Bb3 Ng3 Be4 Ra2 Ba4 Qa6 Bb5 Rc2 Ba4 Rc4 Bb5 Rd4 Ba4 Rd6 Bb5 Qf8 Bg6 Ne4 Bh5 Rg1 Re1 Qff5 d1B Rf1 Bda4 Rf2 Rh1 Rf1 Qd2 Rc1 Rd1 Rc4 Qc1 Rcd4 Rf7 Rd8 Rc7 R4d6 Rd7 Rh8 Nb8 Ne1 Rf7 Bf3 Be8 Qf1 Rd7 Be2 Nbc6 Ned3
N3rnb1/1pQBR1N1/1n4Q1/1KB5/2n2r1q/RR1qQ3/2rnR3/b1q1kq2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 a4 Ke4 g4 h5 g5 d5+ Kb5 f5 c4 f3 a5 d3 c5 f2 e3 h3 a6 h4 g6 b3 a7 b2 g7 f4 c6 d4 c7 f3 Na3 b1N Qc2 h2 Ka5 h3 Ka4 Ne7 g8Q Nd2 Qb2 Be6 c8R Nd7 Qb4 Nd5 Kb5 Bg7 Nc4 Nf8 Ba3 Nb6 Rc7 Rc8 a8R Qe7 Be2 f1Q Qc5 f2 Bg4 Bf6 Qg7 Bg8 Bd7 Qe2 Qg3 f1R Rb1 Rf4 Rb3 Be5 Ra4 Qh4 Nf3 Re8 Ra1 h1Q Rf1 h2 Rf2 Qc1 Ra5 h1Q Qg6+ Rf5 Qcd6 Qhf1 Bc5 Bf6 Raa3 Bg7 Qgg3 Rf4 Qf6 Rh6 Qd8 Rc6 Ng5+ Kd5 Ne6 Ke4 Qgg5 Be5 Ng7 Bf6 Rg2 Kf3 e4 Be5 Qg6 Bf6 Rg5 Kf2 e5 Ke1 e6 Be5 e7 Bf6 Nb2 Be5 Rf5 Bf6 Bd6 Rc2 Na4 Nb1 Rg5 d2+ Rd3 d1Q Rc4 Nd5 Qc7 Rc8 Rdb3 d3 e8Q d2 Rg2 Ba1 Rf2 Rd8 Qe3 Re8 Qf3 Qd3 Qe3+ Qd1e2 Bc5 d1N Nb6 Nd2 Na8 Nb6 Ka5 Qb1 Re4 Nb2 Re7 Nb2c4+ Kb5 Qc1 Rxe2+
1k1q2Rq/1bN1B1b1/2pb4/B1bq1Qr1/r1n4B/N2b2r1/QR4bN/4KN2 b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Nh4 h5 Bg2 Nc6 Nf3 Nce7 Ng1 f3 Bf1 f4 Bh3 Nf5 gxf5 Ra7 Bg4 hxg4 Qb3 Ra6 Qd1 Ra8 h4 Kd7 d4 g5 e4 b5 a4 c6 f6 Kc7 h5 g3 e5 c3 e6 g4 f7 b3 h6 b2 e7 c2 e8Q b4 d5 f2+ Ke2 f1Q+ Kd2 g2 h7 g3 a5 b3 d6+ Kb8 a6 f3 d7 f2 Rh5 Qb5 Qe5+ Bd6 f8B f1B Nf3 g1B Be7 g2 Na3 b1B Nh2 b2 Qf5 Nh6 Qe2 Qd5+ Ke1 Bb7 Bcg5 c1B Ra2 Bd3 Bh4 b1Q Rb2 Rg8 h8N Bgc5 Nf7 g1R Ng5 Qa1 Ne4 R1g3 Nd2 Ng4 Rg5 Bg2 Ndf1 Ne3 Qd2 Nc4 a7+ Kc7 Qc2 Rg6 Rg4 Bh6+ Qb1 Bg7 Rg5 Rc8 a8N+ Kb8 Rg4 Rg5 Nc7 Qe8 d8B Qh8 Ra2 Qf6 Rb2 Qff8 Qa2 Qe8 Ncb5 Qd7 Ba5 Rg8 Qg6 Qd8 Nc7 Rf8 Qe6 Rf4 Qd7 Ne3 Qf5 Ra4 Re4 Nc4 Re6 Bgd4 Rg6 B4e5 Rg8 Bf6 Rb4 Bg7 Rb2
rrQ2R2/b1q3r1/b2b3K/1q2R1rQ/N1QB1Qp1/k3BBn1/3q3b/2r4N b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Nc6 Bc1 Na7 Nh3 axb4 Ng1 b3 Na3 b4 Nb1 Nb5 axb5 Ra5 Ra3 Ra6 Ra1 Ra8 Ke2 g3 c4 g5 f4 d5 h4 Kd7 b6 Kc6 f5 Kc5 h5 e5 h6 e3 Kf3 e4+ Kg4 g2 Kh5 b2 h7 g4 b7 b3 b8B Kb4 c5 d3 f6 d4 c6 e2 f7 e1B c7 e3 Ra5 d2 Rc5 d3 Rh2 e2 Nf3 g1B Nd4 Nf6+ Kg5 Nh5+ Kg6 Bef2 Rh3 e1Q Rh2 Ba6 Nc3 b1Q c8Q b2 Ba7 Ka3 Be2 Bd6 f8Q Qc7 Qc2 d1R Na4 d2 Nf5 Bd4 Rh4 Bgh2 Qc4 Be3 Bf3 Rg8+ Qg7 Qf2 h8Q Re1 Kh7 d1R Qgf7 Rd5 Bd2 Bd4 Be3 Rc1 Rb5 Rg6 Ng3 Qd2 Nh1 Rdg5 Re5 Ng3 Qf6 Bb6 Qff4 Bbc5 Rh6 Rg8+ Rg6 Rg7+ Kh6 Bd4 Rf6 Qf5 Rd5 b1R Qh5 Rbb8 Rf8 Qfd7 Bb6 Qb5 Re5 B4c5 Ba5 Bd4 Bc3 Ba7 Bcd4
b1R3K1/2rr1pQ1/1QR1rb1q/3bN3/3N1q2/qB4R1/qn2NbBN/1k3b2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 h4 e5 b4 exf4 Ba3 h6 b5 a6 Be7 axb5 Bg5 hxg5 Na3 Nc6 Nb1 Nce7 g3 Ng6 h5 Nh4 gxh4 b4 Bg2 b3 Bh3 Qb6 Bf1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 a4 Ke4 a5 d5+ Kb5 g4 c4 g5 c5 f3 e3 g3 c6 d3 h6 b2 h7 g2 a6 d2 h5 d4 Kc4 b5+ Kb3 f2 h6 d3 a7 g4 c7 b4 Kc4 b3 Qc2 d1Q Nf3 g1B Be2 f1B Na3 b1Q Rh5 b2 Nb5 g3 Qb3 g2 Rc5 d2 Nh2 Qf6 Rc6 Bb7 c8R Bf2 Nd4 g1Q Ra3 Be7 Qb6 Qg3 Rd3 Qe1 Bd1 Qa2+ Bb3 d1R Ne2 b1B Rc3 Rd6 Kc5 Qff4 Rd3 Rb8 a8B Nf6 Rc3 Rhd8 h8Q Qed2 h7 Qh6 Qg7 Ng4 h8N Bf6 Ng6 R8d7 Ne5 Qgf4 Rd3 Qdb2 Rc3 Rd2 Rd3 Rc7 Rc3 Bd3 Kd6 Bc4+ Rd3 Bd5 Rdc3 Re7 Rd3 Re6+ Kd7 Rd6+ Ke8 Re6+ Kf8 Qba3+ Kg8 Rd1 Nef3 Rc1 Nfd4 Ne5 Rdc3 Nc4 Rd3 Ke5 e4 Nb2 Rg3 Rc5 Rd6 Rc7 Rc6 Rd7 Rf8 Ree8 Rc7 Rbc8 Rc1 Rc4 Rc2 Ree7 Rc8 Rcc7 Rc1 Bdc6 Rc4 Kd6 e5+ Kd5 e6 Ke4 Rc1 Rd6 Rc2 Red7 e7 Re6 e8N Bg2 Rg6 Kd3 Nd6 Bf1 Rc5 Bcg2 Nc4 Bbe4 Ne5+ Kd2 Nc3 Kc1 Nce2+ Kb1 Rg3 Bc6 Bb7 Bce4 Ba6 Ba8 Bb7 Bh1 Bf3 Bhg2 Rc6 Bh1 Bg4 Bf3 Bh3 Bd5 Bg2
r2N1q1k/3Rr1Q1/1bpQN1bn/7q/7B/1bn1BRQr/2pKQ1n1/3B1q2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 d4 f5 e4 Kf7 g4 Kg7 g5 h5 g6 f3 e5 h3 e6 h2 d5 c3 e7 h4 e8Q c2 b6 b3 b7 f2+ Kd2 b2 d6 h3 d7 Na6 b8B Nh6 Ke2 Rh7 Ra3 Nc5 Rf3 Ne4 Be3 Bc5 Nd2 b1B Nb3 Nc3+ Kd2 Bb6 Be2 f1Q Qf7+ Kh8 Nc5 Qf8 d8Q Be6 Nb7 Bb3 Qe1 Rg7 Bd1 Rh7 Ne2 Rg7 Rg1 h1Q Qg3 h2 Qdd6 Rh7 Qfe6 Rd7 Nd4 Re7 Rf4 Qhf3 Nd8 Qh5 Rf3 h1R Qf7 Rh3 N4e6 c6 Qe1 f4 Qe2 B1a2 g7+ Kh7 Rfg3 f3 R1g2 f2 Rf3 Bc4 Rg4 Bab3 Rd4 Bd3 Rd5 Bg6 Ba7 Bc7 Bad4 Bb6 Bf6 Qg2 Bh4 f1N+ Ke1 Nh2 Kd2 N2g4 Qb4 Qf1 Rd7 Ne5 Qd6 Nd3 Qff4 Ne1 Qg3 Nf5 Nf4 Ng2 g8Q+ Kh6 Qgc4 Kg7 Qf7+ Kh8 Nfe6 Nh6 Qg7+
B1BbBqQn/K7/2b4p/4kn1Q/b1b1B2r/RR2r3/p3N1q1/NN1q2b1 b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Bd2 gxh4 Bc3 b5 axb5 dxc3 Kf2 Ke7 b4 Kf6 e4 d5 g4 a5 g5+ Ke5 g6 f5 g7 h3 c5 f3 Ke3 f2 c6 d4+ Kd3 h2 Kc4 a4 c7 f4 b6 c2 Kb5 c1B b7 d3 Kb6 f3 b5 a3 Nd2 a2 Nb1 d2 Bg2 f1Q Ne2 Nc6 b8Q Nge7 g8B f2 Bd5 Nd4 Rg1 Ra3 Ba8 Rf3 Ka7 h1B b6 Ndf5 b7 Re3 Bf3 Ba3 Rg3 Bd7 c8B+ Bd6 Rh3 Qg2 Rg3 f1B Rh3 Ke6 e5 Ng6 Be4 Bfe7 Rg3 Qf8 Rf3 Kf7 e6+ Kf6 Rg3 Bd8 e7 Bb5 e8B Ba4 Rf3 Bb4 Qg3 Ba3 b8N Bc1 Qg5+ Ke5 Na6 Ba3 Qb3 d1Q Qh5 Bb2 Nc5 Bd4 Ng3 Bc4 Ne2 Rg8 Rg3 Nh8 Rf3 Rg4 Rg3 Ba6 Qg8 h6 Rf3 Rh4 Rh3 Bb2 Nb3 Bd3 N1d2 Bc3 Rb1 Bc4 Na1 Bd4+ Rb6 Bc5 Nb1 Rd3 Kb7 Bg1 Bd5 Qgf1 Ka7 Be4 Bdc6 Qg2 B6b7 Rd7 Rc3 Rd3 Ra3 Re3 Rbb3 Bf3 Bd5 Be4 Bdf7 Bb7 Bd5 Bbc6 Be4
4n3/BrbN1q1n/1r1n1p1Q/1n3RRr/K4bB1/3RQ1qn/B5p1/2N1kB2 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bb2 f4 Ba3 Ra4 Bc1 Ra8 h3 fxg3 Qd2 g5 Qd3 g2 Qd1 g4 Nc3 b6 Qd3 g3 Nb1 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Qc8 Ba3 Qc7 Bc1 Qd8 Kd2 Ke7 a4 Ke6 c4 Ke5 Kc2 Ke4 Kb3 d5 g5 h5 e3 h4 c5 h3 g6 d3 c6 b5 c7 d2 c8B h2 g7 d4 a5 d3 a6 Ra7 Qe2 d1N Bg4 d2 Ba3 Nd7 Be6 Bd6 Qf2 Rh5 Bc1 Nf8 Bd7 Qh4 Bb2 Bc7 Ra4 Nh7 Bc8 Ngf6 g8Q Nc3 Na3 d1N Ne2 Kd3 e4 Kd2 e5 g1B e6 g2 e7 Rb7 e8B Ne3 a7 Nc4 a8R Nd6 Qf3 Be3 Qf2 Bf4 Qg5 Qg3 Qe3+ Ke1 R8a5 Rb6 Bc6 Nfe8 Qh6 f6 Bd5 Rb7 Rg1 h1N Bg4 Nf2 Nc4 Nh3 Ne5 Rb6 Ra3 Rb7 Ba1 Rb6 Kb2 b3 Nd7 b4 Bg8 Rb7 Rg5 Ncb5 Ra5 Na3 Raf5 Nab5 Kc1 b2+ Kc2 b1R Bd4 Rb3 Ba7 Rb1 Ba2 b3+ Kd3 b2 Kc2 Rc1+ Kb3 b1Q+ Ka4 Rc6 Rh1 Rcb6 Rh2 Qd3 Nc1+ Qe2 Qa3 Qe7 Qb3 Ng1 Rh3 Qf7 Qa3 Qe3 Rf3 Nh3 Qc5 Qf2 Rd3 Qg3 Qe3+
Kb4n1/B2nNq2/Rp2Q3/3nq1R1/1b1R1Qp1/3kr1rb/4b1Q1/3bBQN1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 h4 Ke7 a4 Kd6 e4 Kc5 Ke2 Kd4 Kf3 f5 h5 g5 e5 c5 a5 c4 a6 c3 d6 b3 a7 f4 h6 c2 e6 b2 h7 Nf6 d7 Qe8 d8Q+ Nbd7 e7 Ng8 Qf1 Qf7 e8Q Bb4 Nc3 b1B Nd5 b6 Qc7 Ba6 Qe6 Re8 a8Q Ba2 d3 Bb3 Bd2 c1N Ne7 Na2 Be1 Nc3 Rh5 Nd5 Qac6 Bc8 Ra6 Ba4 Qc2 Bb3 Qce2 Bd1 Qc1 Nh6 Qd2 Rhg8 h8B+ Rg7 Qc1 Ng8 Qd2 Kc5 Ke4 f3 Qf4 f2 Q2g4 Rg6 Be5 Kb5 Ne2 g1Q d4 Kc4 Bb8 g2 Ba7 Qh2 Qgg3 g1B Qgg2 Nc5+ Ke5 Kd3 Kd6 Nd7+ Kc6 Qg3 Rh7 Bh2 Rh5 Qe3 Ng1+ Qe2 Qc1 Bb8 Qf4 N5f6 d5 Rg7 d6 Nd5 Qh1 Rg6 Qfg2 f1B Qhh3+ Qe3 Qhf3 Bfe2 Qff1 Nc5 d7 Qe5 d8R Rg7 Qh6 Bh3 Qe6 Nd7 Kb7 g4 Bh4 Rh7 Rg5 Rh6 Be1 Rf6 Q4f2 Rf3 Ka8 Re3 Rc8 Rg3 Rc4 Rc8 Re4 Rc4 Rf4 Re4 Qff3+ Re3 Rc4 Qef6 Qf4 Qe5 Rd4+
rNN2Bn1/2bQ1n1R/1p6/1QBrRk2/bn1p4/1B4R1/1K2Bqqr/4r1r1 b - - 0 1 legal: proof: h4 f5 e4 c5 exf5 a5 b4 axb4 d4 cxd4 a3 bxa3 Qd2 g5 Qd1 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 c4 d5 Kc2 h5 g5+ Kf7 c5 e4 f6 Ke6 c6 b6 f7 e3 c7 e2 g6 e1R g7 h3 Nc3 h2 Be3 h4 Qd3 h3 Qb5 a2 Ne4 d3+ Kb2 d2 Be2 d1R Nf3 Qf6+ Ne5 Bd6 f8B Nd7 Bc5 Kf5 Rc1 a1N Rc3 d4 Nc6 Nc2 Nb8 Ne5 Rg3 Bd7 c8Q Bc7 Qb7 Nf7 Nd6+ Ke6 Q7c6 Nb4 Nc8+ Kf5 Qd6 Be8 Qdc6 Rh5 Qd7+ Ke4 f5 Rg5 Rhg1 h1Q R1g2 Rc1 Rh2 Qg2 Rh1 Rh5 Rh2 Qh4 f6 Rd5 Rh1 Rg1 Rh2 Rce1 Rh1 Ngh6 g8B Qf4 Rh2 Qff2 Rh1 Nh8 f7 h2 Bfe7 Kf4 f8R+ Ke4 Rf6 N8f7 Re6+ Kf5 Qd8 Bd7 Bf8 Bc6 Qa5 Ba4 Qd7 Ra1 Qab5 Rge1 Rg1 h1R Rg7 Rh2 Rh7 Qh3 Rg4 Qhg2 Rg3 Ng5 Bf7 Ng8 Bh5 Nf7 Bg6+ Kf4 Bc2 Rg1 Bcd1 Kf5 Bb3 Rae1 Re5+
2BnK1N1/pnr4B/4b2r/b1k1N3/3Nq1RQ/Q2Rp1qr/5rn1/B2N3r b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 h4 g5 e4 gxh4 c3 dxc3 Ra5 fxe4 Ra4 Qc7 Ra1 Qd8 Ke2 h5 Ke3 d5 Kf4 Kd7 Kg5 Kd6 Kg6 e5 Kf7 h3 g4 d4 b4 d3 f4 c2 g5 d2 g6 h4 b6 e3 b5 e2 f5 e1N f6 e4 b7 h2 b6 e3 g7 h3 Qg4 d1R Ne2 Bd7 Qh4 Nc6 b8N Bf5 b7 Ng2 Bb2 c1R Nd7 Rd2 b8N Nge7 g8B Nc8 Ra4 Rh6 Nd4 Qc7 Bh7 Be6+ Ke8 Nd8 f7 Rf2 Nf6 Kc5 Ba6 Qg3 Rd1 h1Q Ba1 h2 Rd3 Bg7 f8Q+ Nd6+ Ke7 Rc4 Ng8 N6b7 Nc3 Be5 Nd1 Bc7 Nbc6 Ba5 Ne5 Rc8 Qf3 Rc7+ Ke8 Rb4 Qe2 Rb6 Qb2 Rd6 Qg4 Rh3 Qh4 Rdc6 Nc3 Qb1 Nd1 h1R Qa2 Bc8 Rb4 Rh6 Qa3 Bg4 Bc4 Qc2 Be6 Bf5 Bc8 Be6 Nb5 Qb1 Rg4+ Qb4 Qb2 Qbf4 Nd4 Qe4 Qa3+
q7/1B3KBN/R1q1pn2/nQ6/3RRnk1/bb1b1q2/3N1r1p/Rq1B2Qr b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Ke2 Kf7 c4 Kg6 g4 d5 f4 h5 b6 d3+ Ke3 h3 Kd4 h4 Ke5 b3 b7 d4 g5 d2 c5 h2 c6 b2 c7 d3 Ra7 h3 Be2 e6 Nf3 Kh5 f5 e3 g6 Nf6 g7 Kg4 Ra6 Ba3 Qb3 d1Q Qb5 Qa4 Bd1 d2 Ng5+ e2 g8Q Qc4 Re1 h1Q Rf1 Bd7 c8B Qcc6 Re1 Be8 Nh7+ Bg6 Rf1 Qhf3 Qg7 Ne4 f6 e1N f7 Nf6 f8R Ng2 Re8 Qa5 Rd8 Nf4 Rd4 h2 Re1 Rf8 Ree4 Qd8 Nc3 b1Q Bb2 Qc2 Nb1 Qb3 Be2 d1B Nd2 Qbc2 Bc3 Qb1 Qg8 Bb3 Bd1 Bc1 Ra1 Ra2 Qg7 Ba3 Bb2 Qa5 Bc3 Qa8 Bb2 Na6 b8R Nc5 Rb6 Nb7 Ra6 Na5 Bc3 Rc2 Qa7 Bf5 Bb7 Rc1 Qac5 Qcc8 Kd6 Qc6+ Ke7 Bg6 Re5 Bd3 Ree4 Rg8 Kf7 Rg6 Bc2 Rh1 Bd1 Rh6 Rd7 Rh3 Qg1+ Rg3 Rdd4 Rg2 Qf1 Rf2 Qg1+ Kh4 Bb4 Kh3 Bf8 Kh4 Bg7 Kh3 Qf1+ Kg4 Qg1+
1Nq4q/kb4bp/1Qn3B1/qbK4R/1R1B2rR/N1R2N1r/3Qp1r1/3n1q2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 e5 c4 d5 f4 Kd7 g4 Kc7 c5 Kb7 f5 b3 g5 d3 Ke3 d2 f6 d4+ Kf2 b2 b6 h3 f7 e3+ Kf3 e4+ Ke2 h2 g6 Nf6 g7 Rg8 Qb3 d1B+ Ke1 d3 Qe6 e2 Kd2 e3+ Kc3 e1Q+ Kc4 d2 Nf3 Ne4 Ra4 Nc6 Bd3 e2 Rb4 Nf2 Bg6 Ra4 Na3 b1Q Bb2 Qf5 Bd4 Bc2 Qe3 d1Q Qd2 Qc1 Kb5 Nd1 Kc4 Ka6 b7 Ka7 b8N Bb7 Kb5 Qf1 Kc4 Be7 f8Q Bf6 Qd6 Qb2 Qe6 Qa5 Qd6 Bb1 Qd8 Qc8 Qb6+ Ka8 Kd5 Bd3 Kd6 Bb5 Kd5 Rf8 g8R Bg7 Kd6 Rf4 Rf8 Qc3 Rf5 Rg4 Rh5 Rg2 Rh4 Ne7 c6 Qa1 c7 Nc6 Rg1 h1R Kc5 Rh3 Rh1 Qc3+ Rc4 Qh8 c8R Qc1 Rc3 Qc2 Rd8 Qf5+ Rd5 Qfc8 Rdh5 Rb4 Be3 Rbg4 Rh2 R4g3 Rb4 Rg4 Rh4 Qhg8 Bd4 Qh8 Qc7 Ka7 Rh5 Rhg3 R2h4 Rh3 Qb6+
Q2bN1K1/1nBRq1p1/1Bb2Qr1/b2n1Q2/nk2p2r/Bn1q3Q/5N1R/7q b - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 b4 a6 g4 hxg4 b6 Nc6 b5 Nh6 b7 Nb8 b6 Ng8 Bb5 axb5 Kd2 d5 f4 Kd7 h4 Kc6 c4 Kc5 h5 e5 f5 g3 f6 e3+ Kd3 e2 f7 e1B h6 b4 h7 b3 Nh3 b2 Rg1 g2 Ra2 Ra6 Qh5 Qe7 Nc3 b1N Nb5 Nd2 Nc7 Nb3 Qf5 Ba5 Rd1 g1Q Ne8 Nf6 Rh2 Nc6 b8B Nd8 b7 Kb4 c5 Qh1 c6 Bd7 c7 Bc6 c8Q Rb6 Bc7 e4+ Ke2 d3+ Ke3 d4+ Kf4 d2 Kg5 d3 Kg6 Nd5 b8B Ra6 Ba7 Nb7 Qa8 Rb6 Nf2 Ra6 Re1 d1Q Bab6 d2 Qf6 Qdf3 Rd1 Qd3 Bb2 Qe6 Bc1 Be7 f8Q Qd7 Q8f7 Bd8 Q7e6 Qe7 Qef5 Qd6 Kf7 Qe5 Re1 d1N Re2 N1c3 Rd2 Na4 Bb2 Rg8 h8Q Qd6 Qhh6 Rh8 Qhh3 Rh4 Kg8 Qe7 Ba3+ Kc4 Q6e6 Qe2 Bb4 Bd7 Qef6 Nf4 Qf8 Qe3 B6c5 Rg6 Ba7 Bc6 Rd7 Qd3 Ba3 Nd5 Q8f6 Kb5 Bab6 Kc4 Bc1 Kb4 Ba3+
3n3k/4Qp1b/r2nq2R/2b1B1bn/2qNQ1Nr/rR1pR3/2Q2K2/1Qr4B b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 h4 g5 e4 d5 c4 g3 c5 f3 h5 g4 c6 g2 e5 d3 h6 d4 c7 b3 e6 b2 b6 d2+ Kf2 Qd5 h7 Bc5 b7 Kf8 e7+ Kg7 e8Q Nc6 b8Q Nd8 Nc3 b1N Qde2 d1R Rh2 Ra3 Q2e4 Nd2 Q8e5+ Nf6 Rb1 Bf5 c8R Nc4 Q4f4 Qe6 Nd5 Nd6 Bb2 Rc1 Ne2 g1R Bg2 d3+ Nd4 g3+ Ke3 f2 Qfe4 f1Q Bh1 g2 Rh6 Qd1 Kf2 Qa4 Ne3 Qac4 Ng4 Ra6 Qh2 Nh5 Rc7 Rc3 Re7 Rca3 Bc3 Rc1 Rb3 Bb4 Bb2 Bd2 Qa7 Bg5 Qg1 Rc3 Qb1 Rc1 Qc5 Qa4 Qc3 Qac4 Qcc2 g1B+ Kg2 Bh2 Kf2 Bhf4 Ba1 Bd2 Bb2 Bb4 Bc3 Bc5 Ba1 Rg8 h8Q+ Kf8 Qf6 Nf4 Rh3 Qed5 Qe3 Rh8 Nb5 Kg8 Re4 Rh5 Qe7 Qe6 Be5 Bh7 Nd4 Rh6 Qf3 Rh5 Re3 Rh6 Nf6+ Kh8 Qe4 Rh4 Qd5 Rg4 Rh6 Rh4 Qe4 Nh5 Ng4+
4qQ1B/b1b1npp1/4n1q1/kB2N2n/1NRrb2r/K6Q/4Q1R1/1rB1B1n1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 d5 h4 Kd7 c4 Kc7 Kc2 Kb6 Kb2 g3 e4 g2 e5 b3 e6 d3 e7 d2 e8Q f3 h5 d4 h6 f2 h7 d3 Ne2 g1B Qe5 Ra4 c5+ Ka5 c6 Ne7 c7 Na6 b6+ Nc5 b7 Bf5 c8Q Be4 b8B Qe8 Qg3 Ne6 Na3 Rd4 Qdc2 d1R Nc3 d2 Bb5 f1N Qh3 Ng3 Nd5 Nh5 Rh2 Rf1 Rg2 d1N+ Kb1 b2 Ka2 Bh2 Bg3 Nf2 Qe2 Rg1 Bh4 Bc7 Nb4 Re1 Kb3 Rh1 Ra2 b1Q+ Rb2 Qc2+ Ka2 Qd3 Rc2 Qg3 Rc4 Qg6 Bd2 Rb1 Bc1 Ng4 Be1 Ne5 Qd8 Nf3 Qb8 Ng1 Qc8 Nd5 Qd8 Bc5 Qe7 Rg8 Qf8 Ne7 h8B Ba7 Nac2 Bd5 Ka3 Rh4 Nd4 Be4 Nf3 Qc6 Qc8 Rd8 Qb8 Rd4 Qf8 Qe8 Ne5
1q1b1Rn1/2p1qB1Q/2Q3qp/1n1N2k1/bB2B1rN/Q5q1/2Q1K3/1rR2r1b b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 g4 Ke7 d4 Kf6 e4 f3 d5 f2+ Kd2 h3 b6 h2 d6 h6 b7 c3+ Ke3 c2 d7 b3 e5+ Kg5 e6 f5 e7 b2 e8Q f4+ Ke2 Ra4 Bd2 c1Q Qc2 Nc6 b8Q Na7 Nc3 b1Q Qb4 Qa3 Nd5 Qg3 Bg2 f1R Qa3 Qb8 Rc1 Qe7+ Be4 Nb5 d8Q Bd7 Bb4 Bg7 Qf7 Bf6 Qde8 Bc6 Qh7 f3+ Ke3 f2+ Ke2 Qed6 Qed7 Bd8 Qe6 Be8 Qed7 Qe7 Qdc6 Kh4 g5 Kh5 g6 Kg5 Qac3 Ra1 Qa3 Rb1 Qg7 Rh7 Qf7 Rg7 Nf3+ Kg4 Nh4 Kg5 Rg1 h1B Rg2 Rh7 Qg7 Bd7 Qh8 Rf7 g7 Rf4 Qh7 Rg4 Ng6 Rg1 Nh4 f1Q+ Kd2 Qf5 Rf2 Qg6 Ke2 Rf1 Rf4 Nf6 g8B Be8 Bf7 Ng8 Rf3 Na7 Qb7 Ba4 Qbc6 Nb5 Be6 Rg1 Rf8 Rf1 Bf7
2n1bnKR/2bn2Nr/1Q6/3Q1B1p/B2RpRqb/b4RnQ/r1n3N1/1k6 b - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 b5 axb5 g5 Bd2 gxh4 Bc3 dxc3 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kd5 h5 g4+ Kf4 b4 a5 c5 e5 g5 h3 g6 h2 c6 c2 g7 c1N b6 a4 b5 a3 c7 a2 b7 e3 b6 e4 Nd2 e2 Nc4 e1B Nd6 Qh4 Bh3 Nd3 Ne8 Rh7 Nf3 Ne5 Bf5 Ng6 Rf1 Qg4 Nh4 h1N f3 Ke3 f4 d6 Qb3+ Kd2 Qh3 Kc2 Rd1 a1B Ng2 Bd4 Rf3 Be5 Rd4 Nd7 Ke6 d5 Kf7 Ba3 b8Q Ng3 b7 Kb1 Qa7 Ngf8 b8R+ Bb7 c8B Ne7 Qc5 Ra7 Ra8 Ba6 Qb6+ Bb5 Ba6 Nc8 Kg8 Bc7 Bb7 Bab4 Bc6 Ra2 Rb8 Ba6 Ba4 Bb5 Bg6 Ba3 f5 Bf2 f6 Be1 f7 Bf2 Rd2 d4 Bf5 d3 Ra8 Nd6 Rd8 Nc8 Rf4 Be1 Rdf2 d2 R2f3 Nc5 Rd4 d1N Qe6 Ne3 Qb6 Ng6 f8Q Nd7 Qf7 Nc2 Qd5 Ngf8 Kf7 Rh6 g8R Rh7+ Ng7 Nh1 Qbb7 Bh4 Rh8 Ng3 Qa6 Nb8 Qa5 Be8+ Kg8 Nbd7 Qb6+
4B1B1/2krQ1pr/2B1n3/2nnb1N1/rprB1NN1/Rqb5/1n1Rq2Q/2K5 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Nd2 Ba6 Nb1 axb4 Bd2 b3 Be3 b4 Bc1 Bb5 axb5 Qc8 Bh3 Qc7 Bf1 Qd8 Kd2 d5 e4 Kd7 c4 f5 h4 f3 h5 f4 c5 g3 b6 g2 h6 d3 h7 d4 e5 b2 b7 f2 c6+ Kc7 e6 f3 e7 Nd7 b8N Nh6 e8B Ra4 Ra3 Nf5 Ne2 g1B Qb3 Bd6 Kd1 d2 Bf7 Qe8 Bg8 Be5 Nbc3 b1Q Ne4 Nc5 Bg2 f1N Qc2 f2 Ng5 Qb3 Rh2 Qee6 Nf4 N1e3+ Ke2 d1N Kd2 f1R Bb2 d3 Kc1 Bc3 Qe2 Nd4 Nd7 Nd5 Nf6 Qe7 Qe4 Nde6 Ng4 Bgd4 Bh1 Rg1 Rd2 Be5 Ba1 Nb2+ Qe1 Kd6 c7 Rf1 c8B Kc7 Bf3 Rh1 Bd7 Rh4 Bf7 Rc8 h8Q Rh7 Bg8 Qe8 Be4 Qh5 Bg6 Qh2 Bc6 Qe2 Nfh3 Rf8 Bge8 Rf4 Rc2 Rc4 Nf4 Rh3 Qhh4 Rh2 Qhf2 Rh7 Qh2 d2+ Kb1 d1R+ Rc1 Ne3 Qeh4 Be1 Nf7 Rd6 Qe7+ Rd7 Rc2 Nd5 Kc1 Nd1 Bd4 Nb2 Ng5 Bc3 Rd2
B3K3/QNqQn2q/2n3Qp/2p2BNr/1r1r3R/b3N2R/1r3rQ1/1q2k2n b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 g5 Qa4 dxc6 Qb3 c5 Qd1 c4 g4 Qd4 Qb3 Qd8 Kd1 Be6 Bb2 Bc8 Be5 f3 Kc1 f2 Bf4 gxf4 Qd1 Ra7 g5 Ra8 h3 Bg4 hxg4 Bd6 Rh2 Be7 Rh1 Bf8 Kb2 Kd7 d4 Kc6 e4 Kb5 g6 f5 g5 f3 d5 f4 d6 b3 Kc3 b2 Kd4 Kb4 Kd5 b5 Ke6 c3 Kf7 c2 a4 c1R a5 Rc2 e5 Ne7 d7 Nbc6 e6 Rb8 Na3 Kc3 g7 b1Q g8Q b4 a6 b3 a7 b2 a8B Rb4 Bd3 f1R g6 f2 g7 f3 Nh3 h6 Rh2 Rh1 Qg1 f1N Ng5 f2 Bf5 Kd2 Rh4 Ke1 Nc4 Qc8 Qg2 Ng3 d8N f1R Ra3 Rff2 Nb7 Rh2 Qh7 Nh1 g8Q Qd7 Rd4 Rh5 Rh3 Qc1 Rg4 b1Q Ne3 Rcb2 Rgh4 Qdd3 Ke8 Qe4 Bg4 Rd4 Qhf7 Qh7 Qgg6 Rg8 Bf5 Rg7 Qff6 Rf7 Qfg7 Qc4 Bc2 R7f4 Be4 Qcc2 Bf5 Rdb4 Qd4 Re4 Qb6 Red4 Qa7 Nb8 Nd6 Nd5 e7 Ra4 Kd8 c6 e8Q Qcc1 Nde4 Ba3 Qef7 Rab4 Qfe6 Ne7+ Nd6 Qc3 Ke8 c5 Nb7 Nbc6 Ng4+ Qe3 Qc8 Qf4 Qd7 Qc7 Ne3
NN1b3K/2BbQ1n1/2Q5/nQbr3p/p5n1/k4Qb1/b1bB1b1R/1N1q2R1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 f5 g6 Be2 f6 e5 fxe5 f6 e4 g4 Qc7 h4 Kf7 g5 Ke8 Bg4 Qb6 Bf5 gxf5 g6 Qd8 Bh6 a5 Rh2 Ra7 Rh3 Rb7 Rh1 Rb3 Bd2 Rg3 Bc1 Rg5 hxg5 Qb6 Be3 Qc7 Bc1 Qd8 Kf2 h5 Kg3 e5 Kh4 d5 c4 Kd7 b4 Kd6 f7 d3 g7 d2 b5 Kc5 b6 Kb4 b7 d4 c5 d3 c6 a3 c7 e3 Qe1 e2 Nc3 d1B Rh3 a2 Rh2 f4 Nb1+ d2 Na3 f3 Qf1 e1B+ Qf2 e4 Rb1+ Bb3 Qg3 d1B Nc4 a1B Ne2 a4 Nb6 f2 Bd2+ Ka3 Nc3 f1N Na8 Bc5 f8B e3 Bd6 Nc6 b8N Nge7 g8Q e2 g6 Ba2 Kg5 Ne3 Kf6 Bc2 Kg7 Na5 Qf3 Bf2 Qgf8 Ng4 Rg1 Bd7 c8Q e1B Bc7 Bg3 Qcb7 Bef2 Qbc6 Rg8+ Kh7 Nf5 Qe7 Ng7 Qb5 Rf8 Qfc6 Rf5 Qf3 Ne8 g7 Rd5+ Kh8 Bb2 g8Q Ng7 Qge8 Bc1 Be1 Bg5 Bd2 Qc8 Qe6 Bd8 Q6e7 Qb7 Qc6 Qb1 Qb5 Qb3 Qg6 Qb1 Qgc6 Qd1 Nb1#
n1K2n1b/N1n5/Q3B3/nBpnQ2Q/2Rp2rQ/B5n1/2qN2n1/1kb2b1R b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 d4 gxh4 d5 c5 c3 Ra5 Rh2 Ra6 Rh1 Rc6 dxc6 bxc3 Rh2 b6 Rh1 b5 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 a4 Ke4 g3 f5+ Kh3 d5 g4 h5 e3 b4 c7 c2 g5 f3 g6 f4+ Kh2 f2 a5 f3 g7 b3 a6 b2 a7 h3 Kg3 h2 a8Q Nd7 Bh3 f1N+ Kf2 h4 Qc6 Ne7 g8B Ba6 c8Q Ng6 Bd2 Kd3 e4 c1B e5 Nb6 e6 Bg7 e7 Ne3 e8Q Nf8 Qb8 Nec4 Qb5 Na8 Q5b7 Na5 Nc3 b1N Qf4 Na3 Bd7 h3 Kg3 f2 Kg4 f1N Kf5 Nb5 Nf3 Nbc7 Ra4 Rh4 Rg1 h1N Ng5 h2 Qdh5 Kc2 Qee5 Nf2 Nge4 h1N Nb5 Nd1 Na7 Bh8 Bb4 Nc3 Ba3 d4 Bd5 Qb8 Nd2 Be2 Qc6 Qb3 Rc4 Qa2 Qg3 Rg4 Qa6 Qb3 Qgh4 Bd3+ Ne4 Kb1 Bb5 Qc2 Bf7 N3d5 Bg8 Nf2 Rh1 Nh3 Bf7 Nhf4 Bg8 Ng2 Bf7 Nh7 Bg8 Ne8 Ke6 Nec7+ Kd7 Ng3 Be6 Nf8+ Kc8 Bf1 Nd2+
1qq5/1q2Q1Q1/1NB1q3/1qRn2bb/1b1R1B2/3pq1N1/1R1QrQrp/3k3K b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 g3 Na6 Rh3 Nc5 Rh1 Ne4 Nd2 g4 Nb1 Ng5 hxg5 fxg3 a4 Ke7 c4 Kd6 e4 Kc5 a5 b5 a6 d5 g6 h5 e5 f5 g7 b3 a7 Kb4 e6 b2 c5 h4 c6 d3 e7 h3 e8R g2 Kf2 d4 c7 h2 Nf3 g1Q+ Ke1 g3 Nc3 b1Q Ne4 d2+ Ke2 f4 Nd6 Kc3 Re5 g2 Ra2 b4 Rb2 b3 Rd5 Bg4 Ne8 Bb4 Ra2 b2 Nf6 Bh5 Qe1 Kc2 Qf2 Ne7 g8Q Qc8 Qg7 Rg8 Ne4 Rb8 Rda5 Nd5 a8Q Qe6 Qb7 Rbe8 Qe7 Rg4 Ne5 d3+ Kf3 Kd1 c8Q Qc2 Nc5 b1Q Rb2 Qc4 Qcc7 Qb5 Nc4 Qc8 Qg7 Re2 Ne4 Qb8 Qce5 Qc2 Nb6 Qcc8 Qc3 Qe6 Qh4 Qgc5 Qhe7 g1B Ra4 Qcc8 Ng3 Be3 Qa7 Qcb7 Rg1 Qec8 Rg2 Qe6 Rf2 Q8c8 Kg2 f3+ Kh1 Bg5 Rg2 f2 Rg1 Qcb8 Bg2+ f1Q Be4 Qe1 Rf1 Nc7 Bc6 Nd5 Rg1 Ba3 Rd4 Bb4 Nf1 Qf2 Rg2 Q7c8 Ng3 Qfe3 Rf2 Qcb7 Rf5 Q8c8 Ne4 Rgg2 Ng3 Nc7 Rc5 Nd5 Qca3 Ke1 Qb3 d1Q Qc3+ Qdd2 Qa2 Kd1 Qa7 Qf4 Qa2 Qfb8 Qa7 Qc2 Bf4 Qd2 Qa2 Re3 Rb1+ Qc1 Qf2 Re2 Rb2 Qce3 Qd2+
2K2Qr1/R1Nn1k1N/4b2q/q3npbp/5Q1n/6n1/B2Q1qQ1/nR1RB2q b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 h4 exf4 g3 b5 Qd3 g5 Qd2 Ra6 Qd1 Rg6 Rh3 g4 Rh1 Rg5 hxg5 fxg3 Kd2 h5 Kd3 f5 c4 d5 a4 b3 e4 g2 g6 b4 c5 g3 a5 b2 c6 b3 c7 Be6 c8R Nh6 a6 Ng4 a7 Nd7 a8Q Rg8 e5 Bh6 g7 Bg5 Be3 Kf7 Qd2 Qa5 Nh3 g1N Rb8 g2 Bf2 Ne2 Be1 g1Q Nc3 b1N Nb5 b2 Nc7 Qf2 Qb7 Na3 Qbb4 b1N Qa4 Nbc3 Rbb1 Nc2 Ra2 Ne4 Qab4 Qb6 Ra7 Qa5 Qf4 N4g3 Qbd2 Ng1 Rd1 Nf3 Rb1 Ra8 g8Q+ Ke7 Be2 Nh4 Bd1 Na1 Bb3 Re8 Qg6 Rg8 Ba2 Bh6 Ng5 Kf8 Ne4 Bg5 Nf6 Ke7 Qh6 Kf7 Qf8+ Kg6 Qa8 Kf7 Nh7 Nb3 Kc2 d3+ Kb2 d4 Qg2 Na1 Rd1 Qd5 Ka3 Qa8 Ka4 Qf8 Ka5 Qh6 Qe2 d2 Ka6 d3 Rb1 d1Q Kb7 Qa4 Qed2 Rg7 Kc8 Qa5 Qdb4 d2 Qbd4 d1Q Qdd2 Bd5 e6+ Kg6 e7 Bf7 e8Q Qc1 Qf8 Be6 Rg1 Qc6 Qh3 Qh1 Qg2 Nge5 Rf1 Rg8 Rg1 Qf1 Bf2 Qe2 Rgc1 Qe3 Be1 Qf2 Qd8 Kg7 Rd1 Kf7 Qf8+
qRK2R2/rp1N3p/Nq1b2r1/Br2bN1q/b3Q1R1/1q1B1Q2/1n5k/4b2R b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 g3 Na6 Rh3 Nc5 Rh1 Ne4 Nd2 g4 Nb1 Ng5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 f5 a4 d5 c4 f4 e4 d3 g6 d2 c5 g2 a5 b3 g7 b2 a6 d4 c6 g3 a7 d3 c7 f3 Kb6 Kf4 e5 f2 e6 Ne7 g8N Bd7 Nf3 g1B Nh6 g2 Ne5 Kg3 Ng6 Nd5+ Ka5 Rg8 e7 Nf4 Kb6 Ba4 e8Q Bd6 Qb3 d1Q Nd2 b1R Be2 Bh2 Qe4 g1B Ne5 Rg6 Nf5+ Kh3 Nd7 f1Q+ Ne3 Qg8 c8R Bf2 Rf8 Be1 Nf5 Qh8 Ba3 Qg1+ Bc5 Qgd4 Ra2 Qdf6 Bb4 Qc2 Qf7 Qb3 Ra1 Qfb2 Rg1 Qbf6 Rg4 Bhg3 Qfd5 Kh2 Qf3 Qe6 Ne4 d2 Bd3 d1Q Nec5 Rb2 Na6 Qhg8 Bc4 Nd3 Qde4 Bge5 Bb5 Rb1 Ba5 Nb2 Rb8 Qd2 Rf8 Qh6 Rb8 Qh5 Rf8 Rc8 a8R Rcc1 Rad8 Rc8 Rde8 Ra8 Rc8 Ra7 Rb8 Qc2 Bd3 Qcc4 Rbe8 Qc8 Rd8 Qa8 Rc8 Qf6 Rb8 Qb3+ Qb4 Qd8+ Nc7 Qd5 Qe2+ Bf2+ Qe3 Bh4 Qf3 Nd1 Nf6 Rb3 Nd7 Nb2 Rf1 Be1 Rfg1 Rc3 Qbe4 Rc5 Rf1 Qdh4 Na6 Qf2 Rfg1 Be7+ Nd6 Rb5+ Kc7 Qb3 Kc8 Qb6 Nf5 B7d6 Rh1#
N1bQ3R/3N1K1b/pb4Qr/n4n2/p3r3/Qn1Q1Bbb/1kn2BB1/R3r3 b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 a4 b5 g3 bxa4 Be3 c5 Bd2 cxd4 Be3 g4 Bc1 Qg5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 b4 h5 b5 f5 c3 d5 b6 h4 g6 g2 g7 h3 b7 f4 Qe2 Kb3 c4 d4 c5 g3 c6 h2 c7 d2 Nc3 d1R Qf3 a6 Nb1+ d3 Qg4 f3 Qd7 d2 Ke6 f2 e5 Bd6 Be2 f1B Na3 Nc6 Nc4 Re1 Kf7 d1N e6 Nge7 g8B Nf5 e7 Rh6 e8Q Na5 Nb6 Nde3 b8Q Nc2 Nf3 g1N Ne5 g2 Bf3 Ne2 Be3 g1B Bf2 Nc1 Qed8 Ra7 Na8+ Kc3 Q7e7 Bh3 Qb1 Ncb3 Nd7 Bg3 Qa3 Rb7 Qg5 Rb4 Qg6 Rc4 Kf6 Rd4 Bgd5 Rde4 Qd1 Bg4 Kf7 Bh3 Qb4+ Kb2 Bg2 Re6 Bdf3 R6e4 Qd3 Bh4 Bg3 Bb6 Bf2 Bg3 Rg1 Bb7 c8Q h1B Qd8 Bc8 Bf1 B1g2 Rh1 Rh5 Qbf8 Rh6 Rh2 Bh1 B1g2 Re8 Rd1 Nfe3 Bg4 Rh8 Be4 B3g2 Qe6 Rh5 Rh4 Bh3 Ra1 B1g2 Bb7 Be4 Qb4 Bf5 Bg2 Rhh8 Qc6 Re4 B4f3 Rh5 Rg4 Rh4 Rg8 Rh6 Rh8 Bh7 Qg6 Nf5 Qa3+
n2Q1b2/p1rn1b1N/1Rn3kQ/p5q1/1p3QrR/1r2b1RN/B4q2/3Q1B1K b - - 0 1 illegal: No possible last move
3Nb3/1r2Bnb1/nk2B1pQ/1R2p3/2bpq2r/2Nr2B1/1Rb1B3/2RQ2Kb b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 b5 c4 d5 f4 Kd7 Kf2 Kc7 h4 e5 a5 d3 f5 e3+ Kg2 g3 c5 d4 c6 b3 a6 b2 f6 b4 f7 d2 a7 g6 h5 b3 h6 e2 h7 e1Q Qc2 d1B Ra3 Na6 Rh2 Bg7 f8Q Qd5+ Nf3 Rb8 a8R Be6 Bf4 Kb6 c7 Qb5 c8B Nh6 Ng5 Rb7 Kg1 g2 Nc3 b1B Nf7 b2 Rb3 Qe4 Be2 Bc4 Nd8 Nf7 Bg3 Ba2 Qd2 b1B Be6 Bbc2 Rc8 Bd5 Qh6 Bc6 Qa3 Bd7 Qac1 Be8 Rb4 Bc4 Rb3 B2d3 Rc7 B1c2 Qd1 Bd5 Rc5 B3c4 Rc7 Rf8 h8B Bdc6 Kf2 g1R Rg2 Rh1 Rc8 Rh5 Kg1 Rh4 Rc7 Bf6 Bg7 Rh8 Bf8 Bg7 Be7 Rh7 Qg5 R7h5 Qh6 Rh3 Rf2 R5h4 Bh2 B2d3 B2g4 Qf3 Nb1 B4d5 Rfb2 Qe2 Bh5 Bh1 Bf3 Bd5 Rc1 Bc2 Nc3 Qe4 Be2 Rd3 Bg3 Bc4 Rxb5+
r2kn3/B3B2Q/2pB4/1pq1pRN1/2N5/q1qr1R1Q/qBq1b2K/2nNb3 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 gxf4 g4 d5 cxd5 h5 g5 f5 Bh3 fxe4 Bg4 hxg4 Kf1 b5 Kg2 e5 d4 c6 h4 e3 a4 g3 g6 e2 g7 e1Q h5 b3 h6 b2 a5 Bc5 a6 Rh7 d6 Bb4 d7+ Ke7 d5 Qc3 a7 Qb3 d6+ Ke6 Qh5 Qa3 Rh3 Bb7 Nc3 b1Q Nf3 Nf6 Bb2 Qg8 d8B Kd7 Be7 Bc8 Ng5 Na6 Nd1 Qga2 g8Q f3+ Kh1 g2+ Kh2 f2 Rf3 f1Q Qh3+ Qf5 Qg6 Rf7 h7 Be1 h8B Ne8 Bg7 Nc5 Bgf8 Nb3 Qgh7 Qc4 Rc1 Rf6 Rc2 Qd4 Rcf2 Nc1 Rf1 Qdc3 R1f2 Rb8 a8N Re6 Rf1 Qfc2 Rf5 Rf6 R1f3 Re6 Bf6+ Re7 Nb6+ Kd8 d7 Ra8 B6g7 Re6 Nc4 Rd6 Bh6 Rd3 Bhg7 Kc7 d8B+ Kd7 Bde7 Kc7 Bd6+ Kd8 Bh6 Be6 Rf6 Bg4 R6f5 Bh5 Bc5 Bg4 Bfd6 Bh5 Bhf8 Bg4 Q3h4 Bh5 Ba7 g1Q+ Kh3 Qgc5 Qg3 Bf2 Kh2 Bg4 Qgh3 Be1+ Rf2 Be2 Rf1 Qc3b3 R1f3 Qbc3 Bfe7+
1qNRr1k1/4Qr1B/1p1R2np/nq5R/7b/2b1R1pB/1N1bQ1Kb/4N1b1 b - - 0 1 illegal: No possible last move
q3n2n/3Kn1p1/2N3qn/2R1Q3/4Npkb/b2BRnp1/N1Rr3N/1Q1r1B2 b - - 0 1 illegal: No possible last move
1r3n2/1k1NpR1Q/4Nr2/1K1B4/2rN1p2/3Nq1bQ/B1q1p2R/2Qn1brr b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 f5 f4 b5 e4 fxe4 axb5 h6 g5 hxg5 f5 Rh5 Be3 Rh8 Bf4 gxf4 Ke2 d5 b4 Kd7 c4 Kc7 h4 g5 c5 a5 f6 g4 c6 a4 f7 a3 b6+ Kd6 b7 Kc7 b5 e3 Kd3 e2 h5 a2 h6 g3 h7 g2 Na3 Ra6 Nf3 g1R Ne5 Bg7 f8Q Nd7 b8N Nh6 Qf5 Ng4 Nc2 Nf8 Bg2 Bf6 Qc1 Bh4 Rh2 Bg3 Nbd7 Ne3 Qh3 Nd1 Bf3 Rg8 h8Q Bb7 Rb1 a1R Q8h7 R1a4 b6+ Kc8 c7 Rc4 Rb5 Bc6 Nf7 Kb7 Ng5 Qb8 Ne1 Qa7 Ne6 Rh8 Kd2 d3 Be4 d4 Rf5 Bd5 Rf7 Rg8 Bh1 Bg2 c8B+ Kc6 Nf3 Bf1 b7 Qc5 Bg2 Rb6 Bh1 Rg6 Bg2 Rf6 Bh1 Qe5 Ne1+ Qe4 Ng7 Kc7 b8N Qe5 Nc6 Rb8 Ba6 Qe4 Bb5 Kb7 Ba4 Qe6 Bd5 Qe5 Bb3 Qe4 Qc3 Qf3 Ba2 Qf2 Kc1 d2+ Kc2 d3+ Kb3 Qe3 Ne6 Nb2 Rg2 Rh1 Q7h5 d1R Qh7 d2 Rh2 Bg2 Nd3 Rdg1 Ka3 d1Q Qc1 Qdd2 Kb3 Nd1 Ka3 Bf1 Kb3 Rc3+ Kb4 Qc2 Kb5 Rc4 Ncd4+
4r3/NN2rRq1/N1K1R2q/QQ3n2/3pn3/rbnB4/1prpB3/4NkbQ b - - 0 1 illegal: No possible last move, all moves rejected
7K/q1B2r1b/2k1p2r/b5q1/q1r1r1n1/nN4Q1/1QBRpNNp/2R1B2B b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 h5 c4 d5 g4 Kd7 f4 h3 f5 h4 c5 d3 Ke3 h2 Kf4 e3 Ke5 h3 b6 d4 g5 e2 f6 d2 b7 d3 f7 b3 g6 b2 g7 Na6 b8B Rh4 Qc2 d1Q Bg2 d2 Bc7 Nh6 g8Q Nb4 Qg3 Rc4 Ra2 Ng4+ Kf5 Ra7 Kg6 Qf1 Kh7 d1Q Bd2 Qf2 Be1 e6 Kh8 Bb7 Be4 Qg5 Nd2 b1R Qb2 Nc2 Nb3 Na3 Bc2 Be7 f8N+ Kc6 Ng6 Bd8 Nh4 Qdd4+ Be5 Ba5 Ng2 Qdf4 Bd6 Ba8 Bb8 Rf7 Bc7 Rc1 Qa1 Re4 Qb2 Kd5 c6 Qa7 Nf3 Bb7 Nfd2 Ba6 Rg1 h1R Rf1 Bd3 Rg1 Re3 Ne4 Rh2 Nf2 Qa4 Bb8 Rh1 c7 Kc6 c8B Bh7 Bc7 Re4 Bb7+ Kb5 Bb1 Rcc4 Bd3 Ref4 Bf3 Re4 Bc2 Rh2 Bc3 Kc6 Rc1 Rh1 Be1 h2 Nh4 Rf1 Bh1 Rf6 Ng2 Rh6 Nd1 Rf3 Nf2 Rf7 Raa1 Nf6 Rd1 Ng4 Rac1 Rc3 Rd5 Rcc4 Rd2
5bqb/1p1QRQ1b/1RrnB1p1/Nr3qk1/3b1n2/3R1KN1/B2r3p/R5Q1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 fxe4 h5 d5 cxd5 axb4 g4 Nh6 Bb2 Na6 Bf6 Nf5 Qc2 Nb8 Qc6+ Qd7 Qe6 Nh6 Qf7+ Kd8 Qg6 Ng8 Be5 Qd6 Bg3 Kd7 Bh4 gxh4 g5 Kd8 Qh6 Qd7 g6 Ke8 g7 Qd8 Qg6+ hxg6 Ke2 Kf7 d4 Kf6 f4 e5 a4 c5 a5 h3 h6 h2 f5 b3 a6 b2 d6 c4 h7 e3 a7 c3 d7 c2 d5 c1R d6 e4 Ra2 Nh6 g8B Nc6 Na3 b1Q Nc4 Ne7 Ra6 Nf7 Rb6 Kg5 f6 Nd5 Na5 Rc6 Bh3 Qe8 d8Q Be6 d7 Nd6 Qe7 Rd8 a8Q Bf7 Be6 Qd3+ Ke1 e2 Kf2 e3+ Kf3 e1B Ne2 Nf4 Qa7 Bf2 Ra1 Qf5 Ng3 e2 Ba2 Bc4 Be6 e1B Qg7 Bd2 f7 Bc3 Qd4 Be3 Qd1 Bed4 Qa4 Rg8 h8R Bb3 Rh6 Rh8 Rh7 Bc4 Rg7 Rh5 Rh7 Bh8 Qd1 Bcd4 Qa4 Bfg7 f8Q Qef7 Qb5 Qg8 Qf7 Bf8 Qa4 Re8 d8R Re7 Bd7 Re2 Be6 Rd2 Qd1 Bb3 Qg1 Bc4 Qb8 Bb3 Qc8 Qc5 Qb8 Bdg7 Qe1 Kh4 Bd7 Nb5 Qfe6 Qf7 Re8 Bd4 Qc7 Nd6 Qg1 Qg7 Qf5 Bg8 Re3 Qf7 Rg7 Bh7 Rd3 Qg8 Re7 Qb5 Qf7 Qb1 Bde6 Rb5 Qd7 Kg5 Rb3 Qf5 Rd3
b3n1K1/Q1k2B2/1p1n4/1p2b3/RBqRrN2/2nBR1NQ/p1r1B1b1/3b1n2 b - - 0 1 legal: proof: b4 d5 a4 e5 h4 g5 f4 gxh4 c4 exf4 cxd5 c6 b5 cxb5 a5 Qxa5 Ra4 Qa6 Ra1 Qa2 Kf2 Kd7 Kf3 f5 d4 a5 g4 h5 e4 a4 g5 h3 d6 b6 e5 a3 d5 h2 g6 h4 g7 h3 Nc3 Rh4 Bd2 Nc6 Ne4 Nce7 Bd3 Nf6 g8B Qc4 Qb3 Bg7 Ng3 Ne8 Bb4 a2 e6+ Kd8 d7 Be5 Re1 Kc7 d8R Bd7 Bh7 Nc8 e7 Ncd6 Re3 Rc8 N1e2 Be6 Rc1 h1N Qa3 h2 Qa7+ Nb7 Bg8 Nf2 Bf7 Nd1 Rc2 Nc3 d6+ Kc6 d7 Nbd6 Bh5 Bf7 Bg4 Bh5 Rd2 Rc7 Ra8 Rc8 d8Q h1B+ Kf2 f3 Nf4 Rc7 Qc8 Bg2 Bh3 Bh1 Bhf1 Bg2 Bfe2 Bh1 Ng2 Re4 Nf4 Bg4 Qe6 Bh5 Qh6 Bg4 Qh3 Kd7 Kg1 f2+ Kh2 f1B Rd1 Bfg2 Rd2 Rb7 Rd1 Kc7 Rd2 Nf6 e8B Bh5 Bf7 Nfe8 Nf1 Bg4 Kg3 B4f3 Kh4 Bg4 Nh5 f4 Kg5 f3 Kg6 f2 Nfg3 f1N Kh7 B4f3 Nf4 Bh5 Qa3 Rb8 Kg8 Rc8 Ra4 Bg4 Bb1 B4f3 Bed3 Bd1 Be2 Rd4 Rdd3 Ba8 Rd2 Re4 Rd4 Bg2 Bbd3 Qd5 Ng6 Kb8 Qh7 Nb1 Qh3 Rc2 Ra6 Kc7 Nf4 Qc4 Ra7+ Kd8 Qa6 Nc3 Qb7 Rd2 Ra4 Rc2 Qa6 Kc7 Qa7+
1nRQr2N/KB1Q2N1/1R4q1/p2pk1pb/q6B/4n1rn/q2n4/1nBQ1Q2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 g4 bxa4 h4 e6 f5 exf5 h5 fxg4 h6 g6 Nd2 g3 Nb1 Bg7 hxg7 Qe7 Na3 Qh4 Nb1 Qd8 Kd2 Ke7 Kd3 Kf6 Kc4 a5 Kb5 d5 b4 h5 c4 a3 e4 g5 e5+ Kf5 e6 a2 c5 g2 c6 d3 c7 d2 Kb6 h4 b5 h3 e7 h2 e8Q Nh6 g8Q Ng4 Qgf8 Qd7 Nc3 Ne3 Nce2 Rh3 Nf4 Rg3 Ne6 Ke5 Nh3 g1N Rb1 a1Q Qd8 f5 Ng7 Qa2 Nf4 Nh3 Bc4 Ba6 c8Q Qe8 Re1 h1Q Qcd7 Qe4 Bd3 Qea4 Ng6+ Kd4 Rb2 f4 Nh8 f3 Rc2 f2 Rc8 f1N Bf5 Ng4 Re6 Nge3 Bd3 Qg6 Qff7 Nh2 Qff1 Nf3 Rec6 Ke5 Bf5 Ra7 Rd6 Rc7 Bd3 Rc4 Ka7 Re4 b6 Bc4 b7 Ba6 Qb3 d1N Rb6 Nc3 Qbd1 Nb1 Bb5 Nfd2 Bc6 Qh6 Qf2 Be2 Qff1 Na6 b8B+ Qd6 Bc7 Nb8 Bb7 Bf3 Rb2 Bh5 Bb6 Qg6 Rb3 Nc2 Bf2 Ne3 Rb5 Kf4 Rb2 Re8 Rb6 Ke5 Be1 Rg2 Bh4 Rg4 Qg1 Rg3 Qgf1
3bk1N1/1K1B1p2/1NQr4/1q4q1/RN1pBq2/1p2q3/1b1R1nqn/N1R2b1Q b - - 0 1 illegal: No possible last move, all moves rejected
4NQ1n/Bb1q1Rn1/R1b1q3/6pQ/2q1Bb2/2qN3B/kppQn1K1/4rB2 b - - 0 1 legal: proof: c4 a5 g4 g5 f4 d5 h4 dxc4 b4 axb4 f5 b5 f6 exf6 h5 Ra6 Qb3 f5 Qd1 Rg6 hxg6 fxg4 Qc2 g3 Qa4 Ne7 Qd1 Ng8 d4 Ke7 e4 Kd6 a4 c5 g7 f5 e5+ Kd5 a5 h5 a6 g2 Kf2 f4 a7 b3 a8Q+ Nc6 e6 f3 e7 b4 e8B h4 Bb2 c3 Qa3 c4 Qa2 h3 Qd2 h2 Bh5 c2 Bc3 c1Q Qdb2 Qd7 Bd3 Bb7 Be2 Bd6 Bf1 Nf6 Qd2 b2 Nh3 g1N Bg6 b3 Na3 b1Q Nb5 Bf4 Nd6 b2 Ne8 Ne5 g8B+ Nf7 Bf5 Qd3 Bgh7 Nh5 Qa6 Ng7 Qh6 Bc6 Qh5 Ne2 Ra6 Qe4 Rb6 Qee6 Bb4 c3 Bc5 Kc4 d5 Rf8 d6 Nh8 Be4 Rf7 Bhf5 Re7 Rg1 h1B Bd4 Qb7 d7 c2 d8Q Qbd7 Rg2 Qa1 Rg1 Qa3 Rg4 Qc3 Rh4 Bc7 Nf4 Bb8 Nd3 Bf4 B5h3 Bg2 Ra6 Kb3 Rb6+ Ka2 Rg4 Ng3 Kg1 f2+ Kh2 Ne2+ Rg3 Be3 Rf3 Bh1 Rf7 Bb7 Bh7 Bhc6 Be4 Bf4+ Kg2 Qf5 Qc7 Qb3 Bd5 Ba4 Qd6 Bac6 Rb4 Qf6 Bc5 Qc3 Ba7 Re5 Bf3 Qbe6 Qf8 Re3 Rb6 Re4 Ne5 Ng1 Ba6 Re1 Be4 f1Q+ Kh1 Qfc4 Kg2 Q4b4 Bf1 Qbc4 Nd3 Ne2 Ra6+
1N3qn1/4BrR1/1Q2pqr1/1K1Nk2q/3rpQ1b/1N4R1/n3pNnn/B3R3 b - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 Ke2 a5 Ke1 axb4 Ke2 f5 Ke3 b5 Qa4 b3 Qa6 b4 Kf4 Bd7 Ke3 Bb5 Qg6+ Kd7 Qg4 Ke8 cxb5 f4+ Ke2 f3+ Ke3 Qd6 Be2 Qd5 Qg7 fxe2 Qb2 Qf7 Qc2 Qd5 Qd1 Qd8 f4 Kd7 Kd4 Ke6+ Kc4 c5 a4 h5 d4 h3 g4 h4 a5 h2 a6 h3 a7 b2 g5 b3 b6 Na6 g6 Nb4 b7 Na2 b8N Rh6 g7 Rg6 Kb5 c4 Nf3 c3 Nfd2 c2 Rg1 h1N Qf1 h2 Nc3 b1Q Rg3 b2 Nd1 Nf2 Nb3 Ng4 Nf2 h1Q f5+ Kd5 f6 e6 f7 Nh2 Be3 Be7 f8B Bh4 Be7 c1N Bd2 Nd3 Bc3 Qc2 Re1 b1R Bb2 Qc3 Ba1 Nf6 g8R Nf4 Rg7 Ng2 Nh3 Qh8 Qf4 Rd1 Nf2 Qd8 Nd7 Rc8 a8N Qf8 Nb8 Rc7 Ka6 Kc4 d5 Rd4 d6 Kd5 d7 Ng8 Kb5 Ra7 d8Q+ Rd7 Qc1 Ke5 Qb6 Qcf3 Nc7 Q3f6 Nd5 Ra7 Ba3 Rf7 Be7 Qf1 Nd1 Q1f5 Nf2 Qh5 Qf4+
1k1K1Bn1/N2pn2R/1pQrb3/2b3nb/2qbQ1B1/3BN1q1/2pR4/5BqN b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 d4 gxh4 c3 c5 Be3 Ra5 Bd2 c4 Bc1 Rc5 dxc5 bxc3 Kf2 f5 Kf3 h5 g4 b6 e4 c2 a4 c3 a5 h3 c6 h2 g5 h4 g6 h3 a6 Bc5 a7 Ba6 a8B Rh6 e5 Qg5 c7 Nc6 c8N Kd8 e6 Kc7 e7 Kb8 e8Q Nce7 g7 Rd6 Na3 Bc4 Ra2 Be6 Qd5 Qh4 Bb2 c1B Qc6 B1e3 Nc4 Bed4 Ne3 Qe1 Ba3 Qg3+ Ke2 f3+ Kd3 f4 Ke4 f2 Ne2 f3 Rd2 c2 Na7+ Nc8 Qg6 Nce7 Bb7 Bf6 Ba6 Bfd4 Bg2 f1B Bd3 f2 Qh7 Qg5 Ng3 Be2 Bf1 Bh5 Qg6 Qd5+ Kf4 Qf3+ Kg5 Qg2 Qge4 Qg1 Bfe2 f1Q Bg4 Qgg2 Rg1 Qfe2 Nh1 Qg3 Rg2 Qf1 Rgf2 Qe2 Rf6 Qf1 Rh6 Qe2 Rh7 Qf1 Nf2 h1Q Bb4 Qhg1 Nh1 h2 Ba3 Nf6 g8B Qe2 Bf7 Nfg8 Bg6 Qef3 Bf1 Qe2 Qg2 Qb5 Bgd3 Qc4 Qge4 Qh3 Ng3 h1N Bb4 Nf2 Nh1 Qhg3 Qe5 Nh6 Kf6 Nh3 Ba3 Ng6 Bb4 Ng5 Ba3 Nh4 Ke7 N4f5+ Kd8 Ng8 Qee4 Nfe7 Bb4 Bb2 Bc3 Ba1 Bg7 Bad4 Bf8
1nNbBn2/1N1Qk2r/pQR4p/3R1n2/bRK2Brn/3B1R2/n1p5/3nb3 b - - 0 1 illegal: No possible last move
bRNRQ1Nr/2rb4/2BBB1n1/p1r3b1/2N2b1N/q2Q3K/2p1kp2/q3r3 b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 b5 a4 bxa4 f5 e6 Nf3 exf5 Ng1 Na6 Ra2 Nc5 Ra3 Ne6 Ra2 fxg4 Ra1 g3 Qb3 g4 Qd1 Ng5 hxg5 Qd5 Ra2 Qd4 Ra1 Qd8 e4 Kd7 b4 Kd6 d4 a5 e5+ Kd5 e6 Ke4 b5 c5 b6 f5 b7 h5 b8N c3 d5 f4 e7 c2 e8B a3 d6 h4 g6 a2 g7 f3 d7 g2 Kf2 g3+ Ke1 c4 Bh5 h3 Bb2 Ke3 Rh2 c1B Qb3+ c3 Nc6 Be7 Bf7 Bg5 Na7 Qf8 d8Q Bd7 Bb5 Ne7 g8N Ng6 Na3 Rc8 Rb1 a1Q Be6 Rc5 Bc6 Qd6 Qb5 c2 Nc4+ Kd3 Qa4 Bcf4 Nc8 Qf8 Rh1 h2 Be5 Qe7 Bd6 Qf8 Nh3 Qe7 Rf1 h1B Ng1 Qf8 Qb5 Qe7 Qe8 Qf8 Ne2 g1R Nd4 g2 Kf2 Qe7 Rfc1 Re1 Nf5 g1R Nh4 Rg4 Qa6 Rg3 Rb8 Rh3 Nf5 R3h7 Nh4 Qeg7 Be7 Qa3 Qb6 Qga1 Ba8 Bb5 Qd6+ Kc3 Rd1 Ba4 Bf8 Rhc7 Qd5 Bb5 Qe4 Ba4 Rd8 Bd7 Bd6 Bg2 Qf5 Kd4 Qh3 Kd3 Bad5 Bf1 Kg1 Ke2 Qg3 f2+ Kh2 Bg2 Bb7 Bgc6 Kh3 Bb5 Bh1 Bbc6 Bd5 Bb7 Bc6 Ba8 Qd3+
1q3B2/N5Bp/bN1b4/kqr5/2npbp2/1N1rqqb1/1RQ2N2/K1BR1Q2 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 fxe6 f5 e5 f6 e4 g4 Bg7 h4 Ba6 g5 Nh6 Bh3 Bf8 Bf5 gxf5 Bd2 Nc6 Bc1 Ne5 h5 Ng6 hxg6 Ng8 Kf2 Bb7 Ke1 Bc8 Kd2 d5 b4 Kd7 c4 Kc7 Kc2 Kb6 Kb2 e5 g7 a5 b5 a3+ Ka2 e3 f7 f4 g6 a4 c5+ Ka5 c6 e4 c7 d3 b6 e2 b7 e1B b8B d2 Nh3 e3 Rh2 e2 Nf2 d4 Rh1 Bd6 f8B Ne7 g8Q Nc6 g7 Ne5 Rh4 Nc4 Qb3 d1B Nh1 Ba6 c8N Bc2 Rh6 Be4 Qh3 Bg3 Qf1 e1Q Nd2 Qe3 Na7 Qg5 Rh5 Qb5 Nf2 Qf3 Rb1 Qe3 Ka1 a2 Rh2 Qf3 Qe6 Rg8 Be7 Rc8 g8N Rc5 Bf8 Qh5 Nf3 Bab7 Bb2 Qb4 Nh3 Nd2 Nc6+ Kb6 Qb3 Bc7 Nf6 Nc4 Rd1 Qg4 Qc3 Qa3 Qd2 Qe3 Bc1 Raa5 Re2 Ba6 Nf2 Rab5 Na7 Rb3 Qb2 Ka5 Nd7 Rd3 Rc2 Be5 Nd2 Qgf3 Qb3 Qg4 Bbd6 Qgf3 Bde7 Bd6 Bf6 Bh4 B6g7 Bg3 Rc3 Nb6 Kb2 a1Q+ Kc2 a3 Qb2 Nc4 Rb3 Qa2 Rb7 Qb3+ Kb1 Qb6 Rb8 Qd8 Rb4 Qb8 Nb6 a2+ Kc2 a1Q Rb3 Qa4 Kb1 Qe1 Qc2 Qd7 Ka1 Qb5 Rb2 Qee3 Nb3+
3nb1br/1np2Q1Q/1r1p3B/N1R1n1Q1/4kNnR/1Qb4K/3p4/Bb3R1b b - - 0 1 legal: proof: d4 e5 h4 exd4 c4 a5 b4 axb4 h5 b3 h6 gxh6 Rh3 h5 Rh1 h4 e4 f5 e5 b5 Bd3 b4 Be4 fxe4 Rh2 Qf6 Rh3 Qb6 Rh1 Qb5 cxb5 Kd8 Qg4 Ke7 Qd1 Ke8 Kf1 Ke7 a4 Ke6 f4 Kf5 a5 h5 b6 d6 b7 d3 g3 e3 Kg2 b2 g4+ Ke4 f5 e2 g5 e1N+ Kh3 d2 g6 b3 g7 Nd3 a6 Nh6 g8Q Nd7 b8R Bg7 e6 N7c5 a7 Ne5 e7 Nhf7 e8Q Nb7 Na3 b1B Qh7 b2 Ne2 Ba2 Qb3 b1B Bb2 Bd7 Nf4 Nfd8 Qef7 Be8 Nc4 Bf6 Na5 Bg7 Rc8 Rb8 a8Q Bf6 Rc1 Bg7 Kh2 h3 Rc5 h4 Qa6 Bf6 Qf1 Bg7 Qg1 Bf6 Qg5 Bg7 Kg1 h2+ Kg2 h1N Bc3 Nf2 f6+ Ke3 Kh2 h3 Kg3 h2 Kh4 Nfg4 Kh3 Bf5 Rf1 h1B Ba1+ Ke4 Qfh5 Nd3 f7 Bc3 f8B Nde5 Bh6 Bb1 Q7f7 Bh7 Qhh4 Ra8 Qhh5 Ra6 Ra8 Bg8 Qh7+ Kd4 Q5f7 Rb6 Ra6 Rb5 Rac6 Rb6 Rc4+ Ke3 R6c5 Nh2 Ng6+ Kd3 Rh4 Nhg4 Nf4+ Kd4 Ng6 Ke4 Nf4+
NBR1N3/bBpR4/rBQn4/q2kb2p/4bQ1N/p1n1Bp1K/4r1n1/3r4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 d4 Kc6 e4 h5 b4 a5 g4 f5 Kg2 a3 e5 h3+ Kh2 a2 b5+ Kd5 b6 a4 b7 c3 e6 c2 e7 f3 e8N f4 g5 f2 g6 Nf6 g7 Na6 b8B Ne4 Na3 Nb4 Nc4 Bb7 Be3 c1R Bg2 Bc5 Nf3 Ba7 Nh4 Qg5 Rg1 a3 Qa4 Re1 Rd1 a1B Rf1 Rh6 g8Q+ Re6 Qf7 Na2 Bf3 Qe5 Rg1 Rf1 Rg8 Nc3 Rd2 Rd1 Qf8 Re7 Nb6+ Ke6 Bg2 Qa5 d5+ Ke5 d6 f1N+ Kh1 h2 d7 Bb2 d8B Nd6 Bf3 Be4 Kg2 Ke6 Kh3 Ke5 Bf2 Ne3 Bh1 Re6 Bg5 Ng2 Be3 Nb7 Rd8 Nd6 Rd7 Re7 Bf6+ Ke6 Bfd4 Ba1 Nc4 Kd5 Bb6 f3 Bed4 Nb1 Ng7 Ne1 Qf4 Bc2 Bbc5 Bb6 Rc8 Re4 Bg1 Be5 Ne8 Re3 Bg2 Be4 Bf1 Ra7 Nb2 Ra8 Bb5 Ra6 Nc4 Ba7 Bf2 Re2 Bfe3 h1Q+ Qh2 Qg1 Qf4 Ng2 Bcd4 Rd3 Bc6+ Ke6 Bb7 Qc1 Bc5 Rd1 Nb6 Qcc3 Bcd4 Qc6 Na8 Kd5 Bb6 Nc3 Qxc6+
2N2Q2/p2q1pN1/3b1q2/3qRn2/1p5R/2Q1NbpK/k2NnBn1/1R3rBb b - - 0 1 legal: proof: d4 h5 a4 e5 g4 hxg4 b4 c6 c4 d6 f4 exf4 d5 b6 a5 Na6 c5 Rb8 Bg2 Rb7 Be4 Rd7 Bd3 Rc7 b5 bxa5 b6 a4 Bb5 cxb5 Qd2 Nb8 Qd1 Rc6 dxc6 Na6 Kf1 Ke7 Kg2 Ke6 h4 g5 e4 g3 c7 f3+ Kh3 d5 b7 b4 b8N f2 h5 f1B+ Kg4 d4 h6 d3 e5 Kd5+ e6 Kc4 c6 d2 h7 a3 Qe2+ Kb3 Nd7 d1Q e7 g2 e8R a2 Na3 Bd6 Nf3 g1N Qe7 Ne2 Be3 Qd5 Rh4 Nc5 Bf2 Bb7 c8Q Ne6 c7 Bg2 Nf6 Bh1 Qf8 N6f4 Nh5 Ng2 Nc2 Ne7 Ng7 Nf5 Ne3 Qd7 Kh3 Ka3 Rf1 a1Q Nd2 Ka2 Rb1 Qf6 Re5 Rg8 h8B g4+ Kh2 g3+ Kh3 Bc6 Qb8 Bb7 c8N Bc6 Qc7 Ba8 Ne8 Rg4 Qc3 Rf4 Bg1 Rf1 Bg7 Bc6 Bh6 Qb5 Ng7 Bf3 Bg5 Qg6 Bd8 Qd5 Bb6 Qg5 Nc2 Qg6 Bbf2 Qf6 Ne3
QK4b1/2p2kR1/3p1rbQ/p1B2NR1/2q5/Q1b1B2n/3nNnpR/bR1b4 b - - 0 1 illegal: No possible last move, all moves rejected
3r4/Bk3p1R/5N1K/qpnQ1pQ1/Rnq2qB1/RNR2rp1/r2b3Q/3r4 b - - 0 1 legal: proof: b4 a5 f4 c5 a4 h5 d4 cxd4 g4 hxg4 f5 axb4 f6 exf6 a5 b6 a6 Bb7 axb7 f5 Kd2 g5 c4 d5 e4 Kd7 h4 Kc6 h5 b3 c5 b2 h6 b5 h7 g3 e5 g2 e6 d3 Ke3 d2 e7 g4 Kf4 g3 Kg5 d4 Nc3 b1Q Ra4 d3 Nge2 g1R Nd5 Qa5 e8Q+ Nd7 b8R Ra6 Qe3 Qb2 Nf6 Qc2 Bh3 Qc4 Bg4 Ne7 Ra8 Kb7 Nd4 Rf1 Nb3 Rf3 Rh2 Nd5 c6+ Kc7 Kh5 Bh6 Qg5 Rd8 h8Q Nb4 Rh3 Kb6 c7 Nc5 c8R Kb7 Bb2 Qf4 Bd4 Ra7 Qh1 d1R Be3 d2 Ra3 Ne6 Rc3 Nc5 Ra4 Rf1 Qh2 d1Q Qe8 Qdd6 Qe4+ Qc6 Qd5 Rd1 Ra3 Bf8 Bf2 Bd6 Kh6 Be5 Rc4 Bc3 Rh4 Bd2 Rc3 Rd6 Rh8 Rd8 Rh7 Ra6 Qd6 Qce4 Be3 Qc4 Qd3 Nd7 Ba7 Nc5 Qd5+ Nc6 Bb6 Qfe4 Qg2 Qcb4 Ba7 Qaa4 Bh3 Qe3 Rhc4 Qf4 Ra1 Qa2 Bg4 Ra3 Nd4 Qa5 Qh2 Qb3 Ra4 Qc4 Rb1 Ra1 Rbb3 Ra2 Rba3 Rg8 Qe5 Nb4 Nb3 Rd8 Qd5+
qb1B1K2/qp1BBp2/1n1QrnBp/2p3Nr/4Rr1N/QR1n1n2/1R1k4/8 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Kf2 g3+ Ke1 Bg4 hxg4 Qd5 Bb2 Qd6 Bc1 Qd8 e4 Ke7 Ke2 Kd6 Kf3 Kc5 Kf4 Kd4 Kf5 c5 a4 h6 g5 b3 a5 b2 a6 c3 e5 c2 a7 Nd7 e6 Qe8 g6 Qd8 g7 Nb8 e7 Rh7 e8B Qb6 Rh4+ Kd5 d4 Bd6 Bg5 c1N Re4 Be5 Nd2 b1R Ndf3 Nd3 Be7 Kc4 d5+ Kc3 d6 Nd7 Ng5 Rb4 N1f3 g1N Rb1 g2 Nh4 Ngf6 g8R Rg7 Be2 Rd4 Bh5 Nf3 Bg6 Rc8 a8Q g1Q Qa2 Qa7 Qaa4 Nb6 d7 Rc7 d8B Rc6 Bd7 Bb8 Re8 Re6 Qa3+ Kc4 Rb3 Qa8 Qd2 Qa1 Re1 Rg4 Reb1 Kd4 Qh2 Ke3 Qd6 Kd2 Bf8 Re1 Re4 Rh1 Bfe7 Rh2 Ng2 Rh5 Nh4 Qa2 Qe6 Rg8 Qd6 Re8 Qb4+ Kc2 Bf8 Re6 Bfe7 Q2a7 Qa5 Nfd5 Qa3 Nc7 Bh7 Kd2 Bg6 Re5+ Kf6 Ncd5+ Kg7 Rf4 Kg8 Re6 Kf8 Nf6 R1b2+
3KNk1r/p2RN1N1/n1BQb2p/1qpn1Np1/q5Q1/3q3R/4n2Q/1B1r1n2 b - - 0 1 legal: proof: c4 b5 g4 f5 a4 bxa4 h4 d5 d4 fxg4 h5 g6 h6 Bg7 hxg7 dxc4 d5 e6 Be3 e5 Bd4 exd4 Kd2 c5 b4 g5 e4 d3 Ke3 h6 f4 g3 f5 a3 b5 g2 f6 d2 e5 a2 Ke4 c3 b6 c2 e6 c1Q Ke5 Rh7 d6 Ne7 g8B Bb7 f7+ Kf8 Kf6 Qc8 d7 Qc6 d8Q+ Qe8 Bb5 Nf5 Nc3 Qb1 Qg4 d1Q Bc6 Qf3 Nd5 Qbd3 Rh3 Qf4 Nf3 g1N Ne7 Qc2 Qd6 Rh8 Rd1 a1N Nd4 Ne2 Bh7 Nfg3+ Ndf5 Bc8 b7 Na6 b8Q Nf1 Qbc7 Qfe4 Qh2 Qb1 Rd7 Qed3 Qcd6 Qbb5 Rc7 Rb8 Ng8+ Qe7+ Kg6 Qa4 Rb7 Qc3 Nd4 Qcb4 Kf5 Kg7 f8N Qf7+ Ke5 Qc4 e7 Qg6 Nfe6+ Kf7 Ng7 Nc2 Rc7 Nce3 e8N+ Bd7 Ne7 Nd5 Rb7 Kf8 Rc7 Qgc2 Be4 Rb3 Ndf5 Qcb5 Rb7 Qcc4 Bb1 Rd3 Rc7 Rd1 Rb7 Bc8 Rc7 Bb7 Ke6 Qd3 Kd7 Bc8+ Kd8 Be6 Rd7
2rn3b/pB1Rnb1p/3QR1bN/Q4Q2/1K2B1n1/N1p4N/1nq1q2p/5Nk1 b - - 0 1 legal: proof: g4 d5 c4 dxc4 h4 g5 a4 gxh4 f4 b5 f5 bxa4 g5 Ba6 g6 Bh6 b3 Bc8 Bb2 Na6 Bf6 Rb8 Bg2 Rb6 Bf1 Bf8 g7 e5 Bg5 Re6 Bf4 Rg6 fxg6 exf4 d4 Ke7 Kd2 Kd6 Kc3 Kd5 e3 Ke4 b4 f5 b5 c5 d5 h3 b6 h2 d6 a3 b7 a2 b8Q f3 d7 f4 Na3 f2 Qe1 f3 Qd1 Nb4 Nh3 Nc6 Be2 f1Q Qdb3 f2 Qa4 Nge7 g8B Qc7 d8Q Be6 g7 Bf7 Re1 a1N Qbb5 Nc2 Bd3+ Kf3 e4 Kg2 e5 Ne3 e6 Qe2 Qaa5 f1B Qd6 Nd8 Bg6 Ng4 Be4+ Qf3+ Re3 Bd3 Rd1 Qc8 Bb7 Bdg6 Qb1 Qcc6 Qf5 Qe2 Rd2 Nc8 e7 Kh1 e8N Ne7 Ng5 Kg1 Nf6 Qcg2 Re6 Qge4 Kb2 c3+ Kb3 c4+ Kb4 c2 Nh5 c1N Ng3 Qc2 Nf1 c3 Rd5 Kg2 Nh3 Nd3+ Kc4 Nb2+ Kb4 Be8 Bf7 Kh1 g8N Bg7 Nh6 Rf8 Re4 Bh8 Rd1 Kg2 Bfd5 Bef7 Rd2 Ne6 Bdc6 Rc8 Rd3 Nd8 Re6+ Qf3 Be4 Kh1 Ng5 Kg1 Rd1 Qe3 Rd2 Qf3 Nh3+ Kh1 Qde5 Qg2 Rd7 Qf3 Ng5 Kg1 Qd6 Qfe2 Nh3#
1N3B2/p1Qr4/b5BN/Q1K1pp2/1Rp2n2/2RrRRqr/1rk1r3/r4Nn1 b - - 0 1 legal: proof: a4 b5 h4 bxa4 c4 g5 d4 gxh4 Kd2 d5 Kc3 dxc4 f4 Qd6 e3 Qxf4 d5 Bg7+ Kb4 Bd4 exd4 Qf5 Kc3 Qf2 Kb4 Kd7 g4 Kd6 g5 c5+ Kb5 f5 b4 e5 g6 h5 g7 h3 Ne2 a3 Qd3 h2 Bh6 h4 Qc3 h3 Nd2 a2 Re1 Ne7 g8N a1R Bf8 Nc6 Nh6 Rh7 Qa3 c3 Qa5 c2 Bg2 c1R Rhf1 h1R Bf3 h2 Bh5 c4 Bg6 Qe3 Rf3 Rg7 Nf1 Rc3 Rc1 Rd3 Rc3 Qf4 Re3 Qg3 Rf3 Kd7 d6 Ke6 d7 Kd5 d8Q+ Ke4 d5 Nd4+ Kc5 Ba6 b5 Rb8 d6 Nd5 d7 Nf4 b6 Rg1 b7 h1R Qdb6 Rh3 d8R Rg2 Qc7 Rf7 Rd6 Rd7 Rb6 Rf2 Rb4 Rfh2 Ng1 Rb2 Ne2 Rbd8 b8R Re3 Rf2 Nf3 Nd4 Ree2 Nc6 Ng1 Rff3 Rd3 R8b7 R8d7 Nb8 Rde3 Rc1 Kd3 Re1 Kc2 Rb3 Rh1 R7b4 Rh3 Ra3 Red3 Rab3 Red2 Ree3 Re2 Rc3+
k1Qq4/2p1R2R/2NB4/br2n1K1/pB1Np1N1/pp6/2Q1qnNn/r3b2R b - - 0 1 illegal: No proof kernel
bk1rbrnr/2r2pRB/p1N3RN/Q6Q/1K6/4Np1p/1Q1pq1N1/4b2B b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 g5 bxa4 Be3 e5 Kd2 Na6 Bf2 Nc7 Be3 e4 Bf2 Ne6 g6 Ng5 hxg5 e3+ Kd3 exf2 Kd2 Bc5 Bg2 Bd6 Bf1 Bf8 b4 d5 c4 Kd7 e4 Kc7 c5 h5 g7 a6 c6 d3 Kc3 d2 e5 h4 g6 a3 b5 h3 e6 a2 b6+ Kb8 e7 d4+ Kb4 d3 c7+ Kb7 Qh5 d1R Nf3 d2 Na3 Rh7 Nh4 f3 Bg2 f1B Nc4 Bg4 c8N Bf5 Rg1 Qd5 Bh1 Be4 Ne3 Qd3 Na7 Rh8 Nhg2 Rd8 Nc6 Qe2 Rc1 Kc8 b7+ Kc7 Rc5 a1R e8Q Rac1 Qee5+ Bd6 Qc3 Bf4 Rg5 Bg3 Qc5 Be1 b8Q+ Kd7 Qbe5 Kc8 Qa5 Rc2 Rg3 Rdc1 Qb2 Rc5 Rg5 Re5 Rg3 Ree8 Rg5 Rf8 Rg3 Ne7 g8B Kb7 Bh7 Ng8 g7 Rc5 Nb8 Rc7 Rg5 Kc8 Rg6 Ba8 Nc6 Qd1 Nh4 Bb5 R1g4 Qe2 Nhg2 Ne7 g8N Kb7 Nd4 Be8 Nh6 Ng8 Nc6 Kc8 Rg7 Kb7 R4g6 Kc8 Ne7+ Kb8 Nc6+
1k1r2n1/Q1pB1Q2/Q1Q2n1N/2R5/2q4p/N1p2p1K/rBq1R1pn/3b1n1R b - - 0 1 illegal: No possible last move
5RR1/R1B2r1q/p3K3/Q1Qp2QN/2bppr2/B1q2pb1/Qp2Nrn1/6k1 b - - 0 1 illegal: No proof kernel
Q7/1rkbqNR1/7n/bn1nR2B/1Q1BQ1B1/1K1B1rnn/2rq2n1/1N3nb1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 g5 a4 f5 c4 b5 Kc2 b3+ Kb2 d3 c5 f3 a5 d2 a6 b4 c6+ Kc7 a7 f2 e5 f4 e6 d4 h5 g3 e7 f3 e8Q d3 h6 g2 h7 g4 Ne2 g1N Nf4 g3 Na3 g2 Ne2 Nd7 Qe1 d1N+ Kb1 d2 Rh4 b2 Kc2 b1R Nc3 b3+ Kd3 b2 Kc2 Bb4 Re4 Nh6 Rg4 Ba5 Qf7 Qe7 Qf5 Nb6 Kb3 Nh3 Ne4 g1B Nd6 Bd7 Nf7 Rac8 a8B Ne3 Bd3 f1N Rg7 f2 Qe4 Rhf8 h8Q Ng3 Qb4 Ng2 Qee4 d1N Be3 f1N Bd4 Nc3 Qg8 Nb5 Qh8 Rc1 Nb1 Nd5 Ra2 Rb8 Bb7 Bb6 Ra5 Rc2 Ba6 Rb7 Be2 Nbc3 Bad3 Nb5 Bf3 Rc5 Bh5 Rc2 Nd6 Rf3 Nf7 Na7 Rc5 Ba5 Qe8 Nb5 Qa8 Nb6 Re5 Nd5 Bc3 Kb6 c7 Kc6 c8B Kc7 Na3 b1Q+ Bb2 Qc1 Nb1 Qd2 Bd4 Be8 Be6 Bd7 Beg4
RRNB1r1b/Rbn1q1Qb/1qb1B2n/n4b2/k2r4/8/rbqBN3/B3K1Q1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 g5 h4 b5 f4 e5 c4 d5 h5 Kd7 h6 Kc6 c5 b3 f5 b4 f6 b2 a5 d3 h7 Kb5 a6 d4 c6 g3 c7 g2 a7 b3 f7 e3 Qe2 e4 Na3+ Ka4 Kd1 b1B Qh5 e2+ Ke1 b2 Nc4+ Ba3 f8B g4 Na5 g3 Nb3 Na6 Bb4 Bb7 c8Q Qb6 Qc2 Nc7 Qf5 Nh6 Bf4 Rhf8 Kd2 e1R Nf3 g1B h8B g2 Rh5 Re3 Kd1 d2 Bg5 Rd3 Qc8 e3 Ke2 d1N Ke1 e2 Qc5 Ne3 Rh2 Nc4 Ra2 Na5 Bh4 Be3 Qc1 g1Q Ne5 Qg2 Nd7 Rd2 Qd8 d3 Qg5 Bd4 Qg7 Bc2 Qd1 b1B Nc1 Rad8 a8R Bf6 Nb8 Rd4 Nd7 Qe4 Rb2 Qe7 Rb3 Bb2 Bh3 Qe4 Be6 Be5 Qg5 Qec6 Bf6 Qc3 Bd8 Bh8 Qg7 Qc4 Bhf6 Qcc5 Kf2 Qc3 Qf1 e1Q+ Kg1 Ba1 Nb8 Ba6 Bbe7 Qd6 Re2 Nc4 Re5 Rh4 Bf5 Qdb4 Re6 Na5 Nd7 Qc6 Bb2 Rd4 Bg5 Qbc4 Rd6 Qe7 Rbb8 Bb7 Be6 Rh2 Bf4 d2 Bc3 Q6c5 Rda6 d1B R6a7 Bdf3 Qd1 Q4b4 Kf1 Bfc6 Qdg4 Rf2+ Ke1 Bh7 Qg1 Ra2 Ne2 Bbf5 Bfd2 Qbc4 Bb2 Qc2 Nb6+ Kb5 Nc4 Ka4 Nd6 Qb6 Bbc3 Bb2 Nc8 Bc1 Ba1 Ba3 Bf4 Bb2 Bd2
bQn2bk1/qBQ2r2/R2Nb2r/K3Q2n/2bR2NB/5b2/Rnn1n1q1/3qQ3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 h5 e4 d5 g4 b5 a4 f5 c4 Kf7 c5 b3 g5 d3 Kc3 h3 Kb4 d4 a5 f3 a6 h2 a7 b2 e5 h4 Bf4 h3 Bd2 f4 Ra5 f2 Be1 f3 Ra4 d2 Qb3+ Be6 Be2 d1Q Qd3 f1B Ra2 f2 Ra4 Qb6 Bc3 Nf6 g6+ Kg8 g7 Nh5 Na3 b1N Ba1 Nc3 Ra6 Rh6 Qg3 d3 Nc4 d2 Bf3 Ne2 Bb7 Nd7 Nd6 Rd8 a8R Qa7 c6 Nb6 c7 Nc8 Nf3 Rd7 Qf4 Rf7 Ka5 b4 Rg1 h1Q Rg4 b3 Nh2 b2 Qf5 b1N Rd4 Bg2 Ng4 f1B Qf6 Ne7 c8Q h2 Qc7 Nc8 Qh4 Bgd5 Qe1 Qg2 Bb2 h1B Bc1 Bf5 e6 Bf3 e7 Be6 e8Q Na3 Qb5 Nc2 Qe5 Nef4 Bb2 Bfc4 Ba3 Ne2 Bb2 Qb1 Bc1 d1N Bg5 Nb2 Bh4 Ne3 Kb4 Qd1 Ra2 Qb8 Ka5 Nc2 Ra6 Qa7 Qe3 Na4 Re4 Qf1 Bc6 Bfg2 Qg5 Kh7 Qb5 Qff2 Qbb8 Nb2 Rf4 Qg3 Rd4 Be4 Bb5 Ba8 Bc6 Bf3 Bb7 Qg2 Nf6+ Kg6 g8Q+ Rg7 Qh8 Rgh7 Nfe8 Rf7 Qe5 Kh7 Nf6+ Kh8 Ng4+ Kh7 Qf6 Kg8 Qe5
q3R1nr/4qNq1/Q1Nnbn2/KQ1r4/1rN5/1R1nBnQ1/3N1b2/3Bqkq1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 c4 Ke6 a4 Ke5 g4 Ke4 g5 b5 e3 f5 g6 d5 c5 h5 a5 f3 a6 b3 g7 d3 Kc3 d4+ Kb4 h3 a7 h4 Ra4 f4 Bd2 f2 Ra5 h2 Qe1 h3 Be2 f1Q Na3 b2 Nc2 b1Q+ Ka3 f3 Qd1 b4+ Ka4 b3 c6 b2 c7 f2 Nb4 Qe1 Qb3 f1N Nd5 Qe7 Ra6 Ng3 Bb4 d2 Ba5 d1Q Kb5 d3 Bg4 d2 Rb6 Nf5 Nb4 Qa1 Nc6 b1N Nf3 Be6 c8Q Nd7 Qa6 Rb8 a8N Ndf6 Qb4+ Kd3 e4 Ke2 e5 Qc1 Bh5 d1R Nd2+ Kf2 Rb7 Qab2 Nb6 Nd6+ Ka4 Qc5 Nbc4 Qa7 Bd8 Qa8 Ka5 Qd4 Rg1 h1N Bb6 h2 Rg3 Qg1 Qb5 Ke1 Ba7 Nf2 Rb3 h1Q Rd7 Rb6 Rd8 Nd3 Re8 Rb7 Bb6 Qdg4 Be3 Q4g2 Nf1 Nd2 Bg4 Nf3 Nfd2 Ke2 Bh5 Qe1 Bg4 Qhg1 Bh5 Nh6 g8Q Qg4 Qg5 Nhg8 Qf4 Bh6 Qg3 Qgg7 Bg4 Bg5 Bh5 Bh4 Bg4 Bc8 e6 Rb8 Qg2+ Bf2 Qg3 Qef8 e7 Be6 Rd8 Rb6 e8N Qfe7 Bh5 Nf5 Ned6 Rb7 Qc5 Rb4 Nf7 Nd6 Qcg5 Qab7 Re8 Qa8 Ne4 Kf1 Qb5 Nc5 Bg4 Rd5 Bh5 Nd3 Bg4 Nh4 Bd1 Nf3 Ned2+
n3B1n1/1Q4b1/1rrRnR2/B1q3N1/7Q/b2b1RnK/1qrrN1n1/1N1Nkr2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 a4 Ke5 h4 Ke4 c4 d5 e3 f5 c5 g5 c6 b5 h5 b3 c7 b4 h6 b2 h7 g3 a5 f3+ Kh3 d3 a6 d2 a7 f2 Ba6 f1N Qe2 d1R Bb7 f4+ Kg2 b3 Nh3 g4 Ng1 Nd7 Bc6 Qe7 Bd2 Nb6 Bb7 Bg7 Bc6 Bf5 c8R Qc5 Ba5 Rd2 Qf2 Kd3 e4 d4 Rh3 f3+ Kh1 Bg6 Rc7 Rc8 e5 Na8 Qe1 f2 Nc3 b1Q Kg2 b2 e6 Qc1 e7 b1R e8Q Rb6 Nb5 Qb2 Rd1 Kc2 Qd8 d3 Rh6 Ne3+ Kh1 f1N Rb7 Ng2 Be8 Rcc6 Qe4 Nf4 Rf7 Ne6 Qc7 Ne3 Rf3 g2+ Kh2 g3+ Kh3 Nf1 Ne2 g1B Rf2 g2 Qb7 Ng3 Rf3 Be3 Qh4 g1R Nbc3 Rf1 Nb1 Bed4 Qe4 Bc3 Qg4 Bb4 Qh4 Be4 Rhf6 Ba3 Re1 Rf2 Rg1 Rf1 Rg2 Kd1 Rh2 Nac7 a8N Rc2 Rhf2 d2 Rd3 Ke1 Rd6 Bd3 R2f3 Rb5 Nb6 Na8 Na4 Rbb6 Nac3 d1N Bf7 Ne3 Nd1+ Rd2 Be8 Ng2 Nd4 Nh6 Ne2 Rf8 h8N Ng8 Nf7 Rf2 Nec3 Rc2 Ng5 Rfd2 Ne2 Rf7 Rg6 Rf4 Rf6 Rf5 Re3 Rf1 Ref3
1q1NN1K1/2bbB3/1QrB2Bk/5qrb/qbr3RN/2q3Q1/1b3nnq/1B2R3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 a4 b5 h4 g5 e4 f5 c4 Kf7 a5 Kg7 c5 b3 e5 b4 e6 f3 Kg3 f2 a6 d3 h5 d2 c6 b2 c7 b3 a7 f4+ Kg2 g3 Kh3 g2 Kg4 f3 Kf5 d4 Ra2 d3 Ra5 g4 Rh3 g3 Ne2 g1B Ra6 g2 Rg3+ Kh6 Ke5 Qd4+ Kf5 Qc3 Ra3 Nd7 e7 Ne5+ Ke4 Nf6+ Kf4 Nd5+ Ke4 Bh2 e8N g1B Ra1 Bd7 c8B Rg8 Ba6 Ng4 Nd4 Rc8 a8Q Rg5 Qb8 Rc6 Qe1 d1Q Qb6 d2 Bfd3 f1Q Ne6 f2 Nd8 Nf4 Bc2 Qh3 Bad3 f1B Rg2 Qh4 Qg3 Bd4 Rg1 Bh3 Ra4 Bd6 Re1 Ng2 Rc4 B4e5 Kd5 Nf2 Bg6 Bb4 Rg4 Qdf3+ Bce4 d1Q+ Nd2 b1R Ba3 Qf5 Bc2 Rc1 Bb1 Qe2 Nf3 b2 Ng7 Ba5 Bd6 Bb4 Ne8 Rc4 Rd4 Qhg4 Nh4 Qec2 Be7 Qge2 Rg4 Qa4 Bc5 Bf6+ Kd6 Be5+ Ke7 Bf6+ Kf7 Rc2 Qf3 Bc7 Bd6 Qee5 Kg8 Qh2 Qg3 Rc1 Be4 b1Q Be7 Qbb3 Bb1 Bg7 Rd4 Bg4 Rde4 Bf3 Rg4 Rc6+ Ne6 Qcd3 Qb8 Qh3 Rge4 R1c4 Nd8 Bc5 Qa7 Qb8 Qb6 Bb2 Rd4 Qc3 Bd6 Rg4 Rf4 Kg5 h6 Bb4 h7 Qh2 h8B Kh6 Bf6 Rg5 Bfe7 Bh5 Rg4
R1K5/r3bQ1q/2NkN2q/R4rnb/qrqnB1bQ/5nb1/2N2B2/1b4QN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 g5 a4 f5 c4 d5 h4 b5 e5 f3 Kg3 b3 a5 b4 a6 b2 c5 f4+ Kf2 b3 c6 d3 h5 g3+ Ke1 f2+ Kd2 g4 Kc3 d2 Kd4 g2 Kc5 g3 e6 d4 c7 d3 Kb6 f3 a7 Qd6+ Kb5 Nc6 Kb6 Nf6 h6 Ne4 h7 Nd4+ Ka5 Ng5 Qe1 d1Q Rh5 d2 Bd3 f1R Na3 b1Q Ne2 g1N Nc2 g2 Ng3 b2 Nh1 f2 Be4 N1f3 Ra3 Rb8 a8N g1B Ra1 Rg8 h8Q Bh2 Ra4 Rb4 Ra3 Ke8 e7 Bg4 c8N Kd7 Nc7 Qh6 Ne6 Rg7 Ka6 Bg3 Na7 Kd6 e8Q Be7 Nc6 Rf7 Ra4 Rf5 Qf7 Rg1 Ra1 f1Q+ Ka7 Qc4 Ra5 Rg2 Qg1 Re2 Rh2 Re3 Re2 Ra3 Re3 Raa4 Ra3 Bh5 Ne3 Qdb3 Nc2 d1B Be3 Be2 Ra1 Ra2 Bf2 Qa4 Ne1 Qbd3 Nc2 b1B Qhh7 Ne5 Ka8 Beg4 Qh8 Nef3 Qhh7 Nb5 Kb8 Nbd4+ Kc8 Qab5 Ra8 Ra7 Ra5 Qa4 Qh8 Rf4 Bd5 Qdh7 Be4 Rf5 Qhf6 Nh3 Qh4 Nhg5 Qe8 Rd7 Qg8 Ra7 Qf7
1Bn3Bb/b1rR2Qq/1bNrq1N1/4r1B1/2Q1b2q/rNR5/1nn1kB2/3b2K1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 c4 Kg6 f4 Kf5 Kf2 b5 h4 e5 c5 g5 c6 d5 h5 g3+ Kg2 e3 a5 Ke4 f5 e2 f6 e1Q h6 d3 c7 g4 h7 d4 a6 d2 f7 Ke3 a7 e4 Ra4 b3 Ne2 d3 Ra1 b4 Na3 b2 Nb5 b1R Ba3 b3 Nc1 b2 Na2 Qh4 Rh3 Bg7 f8B Ne7 Qc1 Na6 Nd4 Nb4 Be2 Nc2 Bf1 Bf5 Nf3 Nc8 Bfe7 Rd8 h8B Rd6 Kh1 g2+ Kh2 g1B+ Kg2 g3 Nb4 Bf2 Kh1 g2+ Kh2 Bg6 Nc6 g1B+ Kh1 Bd4 Be5 Bf5 Bg3 Bh8 Nfd4 Bg6 Bg2 Qe2 Qf1 d1N Bc5 d2 Nb3+ Kd3 Be5+ e3 Bd5 Rc1 Bg5 b1Q Bg8 Nb2 Ra4 d1B Rd4+ Kc3 Qg2 Be4 Rd5+ Kc4 Bcd4 Kd3 Bef4 Re6 Rd7 Rd6 Bfe5 Qeg4 Bg3 e2 Bb6 Rb8 a8Q e1R Qa4 Ra8 Qd4+ Ke2 Qc4+ Bd3 Bc5 Ra3 Ba7 Qe6 Bb8 Bh2+ Qg1 Bb6 Bf2 B2e5 Kg2 Bed4 Kh2 Ba7 Qg3 Bdb6 Qe5+ Kf1 Qg7 Re5 Kh1 Ke2 Kg1 Ne7 Qc5 Be4 c8N Nd4 Qd5 Rc4 Rc3 Nc2 Nb4 Rc7 Nc6 Qc1 Qd4 Qcf4 Qc5 Qff5 Qb4 Qfh7 Qc4+ Rd3 Nd6 Nc8 Nf5 Ne3 Nfe7 Nc2 Qa4 Rdd5 Ng6 Rd6 Qc4+
3nb2b/n2r4/rk1r2Nq/1rr5/3R1BN1/n2qR2B/1B2BKnQ/r3rQQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 d5 c4 Kd7 h4 Kc7 a4 g5 c5 f5 a5 b5 h5 d3 h6 g3 c6 b3 a6 g2 e5 d4 a7 b2 h7 d2+ Kf2 g4 e6 g3+ Ke2 b4 e7 f3+ Kd3 f2 Ke2 d3+ Kf3 b3 e8B f4 Be2 f1Q+ Ke4 f3 Ke3 f2 Bd7 Qg5+ Kf3 Kb6 c7 Qh6 Rh3 Nc6 Qe1 d1R Nc3 b1N Ra4 b2 Bg5 d2 Rh2 Bg7 Rg4 Nge7 Bf5 Bd7 c8Q Nd8 Rh1 Nec6 Rh2 Na3 Rgh4 b1R Nh3 g1R Nf4 g2 R2h3 Be8 Ng6 Rb5 Bf4 Rg8 Kg3 Bh8 Ne4 Rf8 Bfg4 Rff5 Nf6 Rfc5 Qf5 Ra1 Qd3 d1R Bf5 Rh1 Ng4 g1R+ Kf3 Rg2 Qb1 Rd7 Qd2 Rc8 a8Q Na7 Qdd3 R8c7 Qb8+ Rb7 Qe5 Rd6 Bd7 Qd1 Qeb2 Qc2 Qg1 f1N Bc8 Rg3+ Kf2 Rbd7 Qd1 Ne3 Qdf1 Qd3 Qa2 Bf6 h8B Ng2 Qb2 Re3 Rg3 Re4 Re3 Ra4 Qa2 Re1 Bg7 Ba1 Bb2 Ra6 Qd5 Rdc6 Nh2 Qg5 Bd6 Rf7+ Bf6 Bd7 Qe5 Reb1 Qc1 Qh5 Qge1 Be8 Bh3 Re7 Rhe4 Rec7 Ng4 Qh6 Qh2 Rd7 Bf4 Rcd6 Bh8 Bf6 Rb4 Ra1 Qb1 Bg5 Bb2 Bf6 Rd4 Bh8 Qeg1 Nh4 Qgg2 Rhc1 Qgg1 Ng2 Qc2 Rcb1 Qcd1 Rbc1 Qdf1 Rd1 Bc3 Re1 Bb2
kBnNnQ2/q4r2/4Kn2/3Bb1r1/rB2nqNr/1r2R2r/2R2r2/1b1QB2Q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 h4 e5 c4 d5 a4 Kd7 f4 Kc6 a5 b5 h5 Kb7 h6 g3 f5 d3 Ke3 d4+ Kd2 b3 f6 b4 h7 g4 c5 e3+ Ke1 b2 f7 e2 Kd2 e1R Rh3 e4 Ra3 b3 Rh4 g2 Ra4 g3 Rh3 Bg7 f8B Ne7 Ra2 Re3 Rh6 Qd6 Rg6 Nd7 Re6 Qf4 Rg6 Be5 Rg4 Nf6 Be2 Bf5 Nc3 b1R Nh3 g1R Rg6 g2 Ng5 b2 Rg8 Nc8 Ra3 Ne8 Nd5 Rh3+ Ne3 Rf1 Rg6 g1Q Rc6 Rf2 Ne6 Ra7 a6+ Ka8 Be7 Ra1 Nd8 b1R Bd6 Rbb7 Bb8 Rb3 Bb2 Rh4 Bc3 Rf7 a7 Rg8 h8B Rg5 Bb4 Bg6 Raa6 Ra4 Re6 Bf5 c6 Bh7 c7 Rh3 Kc1 d2+ Kc2 Bg6 Ng4 e3+ Bd3 e2 Rac6 e1R Be4 Rh4 Bg7 Ree3 Bgf8 Red3 Bd5 Be4 Ba5 Bh7 Bfb4 Bg6 Qe2 d1N Be1 Bf5 Bab4 Nc3 Re7 Ne4 Qd2 Ncd6 c8Q N4f6 Qe2 Re3+ Kd2 Bb1 Rc2+ Nb7 Qf5 d3 Re6 Rff3 Qe4 Rf2 Qh1 Reh3+ Kd1 Bc3 Re3 d2 Qf1 Be5 Qd3 Rff3 Ke2 d1N Qd4 Nc3+ Kd3 Rf1 Kc4 Nce4 Qd1 Rf2 Bc6 Nh7 Kd5 Nhf6+ Ke6 Rfg7 Bd5 Rf7 Nc6 Nbd6 Rcc3 Nc8 Rc2 Kb7 a8Q+ Kb6 Qa5+ Kb7 Qc5 Ka8 Qf8 Rf1 Rec3 Qa7 Re3 Rf2 Nd8+
Rb1K2n1/5B1n/b7/2nkrn1q/1BN1r3/N1b1Q2B/3r1nQ1/bbRRB1r1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 b5 c4 f5 a4 g5 h5 g3+ Kf3 d3 a5 d2 a6 b3 a7 g2 h6 b4 h7 b2 Qa4 d1R Qa5 b3 Qe1 g4+ Kf2 g3+ Kf3 Na6 Na3 b1N Be2 b2 Nh3 g1B Bd2 g2 Ba5 Qe8 Ra2 Bh2 Qf2 g1B Ra1 Nc5 Nc2 Nc3 Qg3 b1B Nb4 Ba6 Qg5 Nd5 Nf2 Bg7 Qg2 Ndf6 Ng4 Rd2 Ne5 Bd4 Nc2 Bc3 Rc1 Qf7 Rd1 Re8 a8R Re7 Na3 Qh5+ Ng4 Ke6 e5 d5 Bb4 d4 Bf1 d3 Rc1 Na4 c5 Kd5 c6 Nc5 c7 Re8 c8B Re6 Be2 Re8 Kf2+ f3 e6 Bb8 Ne5 f4 Nec4 Re7 Ra2 Re8 e7 Ba1 Bh3 Bc3 Kg1 Ba1 Kh2 Bc3 Qg6 f2 Ra1 f1R Qg4 Rg1 Qg2+ Nfe4 Bg4 Bgf6 Bf5 Bg7 Bg6 f3+ Nd6 Ng5 Kg3 Bgf6 Kf4 Bfd4 Kf5 Bf6 Qh2 f2 Ndc4 f1N Qe2 Rd1 Qb2 d2+ Qc2 Re1 Bf7+ Re6 Rd1 Rd8 Rc1 d1N e8Q Nf2 Qe7 Qd1 Kg6 Ng3 Qa7 Nf5 Qb2 Nce4 Qe3 Nc5 Qa2 Kc6 Qae2 Re4 Q2f3 Rd2 Qg2 Qf3 Rd1 Bc2 Rac1 Bb1 Qe2 Ba1 Qe1 Bfc3 Qe3 Nd4 Kg7 Nf5+ Kf8 Re5 Be8+ Kd5 Bf7+ Nce6+ Ke8 Re4 Bg6 Qh5 Kd7 Nc5+ Kd8 Nge7+ Be8 Rg8 h8B Nh7 Be5 Rg5 Bg3 Ng8 Bh4 Rg7 Bg6 Re7 Bg3 Re5 Bh4 Nh1 Be1 Nf2 Bf7+
3nB3/2N1Bnk1/K2Brqbn/1n2RnN1/1qRq1Q2/2n1br2/2q4b/B1Q1Q3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 e5 f4 g5 c4 b5 a4 d5 a5 e3 Kd3 b3 a6 b2 a7 e4+ Ke2 d3+ Ke1 g3 c5 g4 f5 g2 c6 d4 h5 e2 Kd2 e1N f6 g3 h6 b4 h7 b3 c7 Bd6 Qe2 e3+ Kd1 d2 Qd3 Nc6 Ke2 d1N Qc2 Nh6 Ra4 Nf3 Kd3 e2 Kc4 e1Q Kb5 d3 Be3 d2 Ra2 Nfe5 Bf2 Re8 h8B Nc3+ Kb6 d1N Na3 b1Q Qf5 b2 Rh4 Qc2 Bc5 b1N Qf4 Ne3 Nb5 Re6 Ra5 Na3 Nf3 g1Q Ng5+ Kg6 f7 g2 f8B Qf6 Be2 Nef5 Be7 Qd4 Bd1 Bd7 c8Q g1B Ka6 Nd8 Nc7 Nab5 Bb4 Rb8 a8Q Nef7 Qae4 Be3 Be2 Be5+ Bbd6 Be8 Qh1 Qed2 Qe1 Qb4 Bf3 Qdd4 Bc6 Rb7 Qff2 Bh2 Qf4 Na7 Re5 Nab5 Qf3 Qdd2 Rc4 Qd4 Qf4 Rb8 Qb7 Ra8+ Qa7 Rb8 Qc5 Ra8+ Kb6 Ra3 Bd7 Rb3 Ka6 Ne4 Qa7 Bc1 Rcc5 Qdd3 Qeh4 Qg7 Red5 Ne5 Qe1 Qdd1 Rc4 Rf3 Qag1 Be3 Qe2 Qdd2 Nh3+ Kh7 Qa1 Bg6 Be8 Nef7 Qc1 Qgc3 Ng5+ Kg8 Bd4 Qdd3 Ba7 Qf6 Bd4 Kg7 Ba1 Nec3 Qee1 Qdd4 Re5
1n3rRb/4N1n1/B1nB2n1/n3Q1bQ/4QRN1/1b1nK3/3rBB2/q1qbqk2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ra5 a4 Ke7 e4 Kd6 c4 Ke5 h4 b5 h5 d5 c5 g5 h6 f5 c6 f3 c7 Kf4 e5 Kg3 h7 Kf2 e6 g3 e7 b3 e8B d3 Ra3 d4 Bh3 b2 Ra2 b4 Na3 b1Q Nc4 g4 Bb2 b3 Qc2 g2 Ra1 f4 Ba3 b2 Bb5 g3 Qc1 Bh6 Qc3 Qf6 Nb6 Bg4 c8Q Ne7 Qb4 Nec6 Qf5 Rf8 Ba6 Rd5 Ne2 g1N h8B g2 Nc3 Ne2 a5 g1B Nca4 Qe6 Ra2 Qa1 Qh7 b1N+ Kd1 d2 Kc2 d1B+ Kd3 Bb3 Nc3 Nd2 Bg7 Nc4 Be5 Bh5 Ke4 d3 Nc8 d2 Qbe7 d1N Bg2 Ndb2 Bb5 Ke1 a6 f2 a7 f1Q Qc5 f3 Ne7 f2 Rh4 Nf4 Ba6 N4a5 Nd1 Bg7 Qh6 Bh8 Ne3 Qc4+ Qd4 f1N Bc5 Qcc1 Bd6 Bhd1 Qh5 Bf2 Rg4 Bh4 Rg8 Ng6 Ng4 Ne3 Ra4 Nf5 Bf3 Bg5 Qc3+ Rd2 a8Q Ng7 Bc5 Nd3 Bf2+ Kf1 Rb4 Nd4 Qd5 Qf7 Bd6 Ndc6 Qe6 Qcb1 Qf5 Qc4+ Qd4 Qcc2 Qde5 Be2 Qff4 Qe1 Ke3 Qcc1 Rd4 Bh4 Qff5 Bf6 Rf4 Bg5 Qfe4 Bed1+ Be2+
4N3/1r1kNR2/nB1q1Q1K/4b2N/nq4b1/rBR3Q1/2Qrrqr1/1nr1Nn2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 h5 Kf3 f5 e4 d5 a4 b5 c4 h3 g4 h2 e5 b3 g5 b2 a5 h4 e6 d3 e7 d2 c5 d4 a6 b4 c6 h3 g6 d3 c7 b3 g7 Rh7 a7 Na6 Na3 b1N Nb5 b2 Nd4 Qd6 Ne6 Nf6 g8N Nd7 Qa4 d1R Qa3 d2 Ng5 Nb6 Ne2 Na4 Ne6 Re1 Ng7+ Kd7 e8N d1R Ra2 Rd2 Ng1 Ree2 Nh5 Bg7 Qb3 Be5 Ra3 Rg7 Qc2 Rgg2 Ne7 Rb8 a8Q Rb7 Re3 Rg4 Bg2 Rd5 Ng3 Nbc3 Qb1 Bh8 Qa7 Rc2 Qa1 b1Q Rd3 Qbb4 Bb2 Ke6 N3e2 Nb1 Kf2 f3 Ke3 f2 Nf3 f1Q Bd4 f4+ Ke4 Qfe1 Rf1 h1R Ra3 Bd7 c8Q Rc1 Qc6 Rh2 Qc2 Qg3 Ne1 f3+ Ke3 Rg7 Ke4 f2 Bh1 Qg1 Ng3 Re5+ Kf4 Qg2 Rg1 f1N Nh5 Rg3 Rf3 Bc8 Rf2 Ra3 Rf3 Qe2 Rg7 Rf2 Qb6 h2 Rf7 Bf6 Bg2 h1R Qbc6 Bd7 Q6c3 Rh2 Qab2 Bh8 Q3d3 Re4+ Kg5 Qe3+ Kg6 Rd2 Bb6 Qf2 Kh6 Ree2 Qg6+ Bf6 Qg3 Bh8 Qbg7 Bc8 Q7g5 Be5 Rc3 Bd7 Bc6 Rg2 Be4 Bc6 Qg6+ Kd7 Qf6 Bd5 Bd3 Bf3 Bc4 Bg4 Bb3
rQB1n3/R2n4/R2bbb2/B1k3br/Q3nNR1/q2b2bq/2r3n1/N1RK2N1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 g5 h4 b5 f4 e5 c4 Ke7 h5 Kd6 f5 e3 f6 e4 f7 g3 h6 g4 a5 g2 h7 e2 a6 b3 a7 d3 Be3 g3 Bh6 b2 Na3 b1R Bg7 b4 Nc2 b3 Ra4 b2 Na3 Nf6 Ra6+ Kc5 Qc1 d5 Rb6 d4 Rb3 Qa5+ Rb4 Bd6 f8N Be6 Kd2 e1B+ Kd1 d2 Ng6 e3 Rh2 e2+ Kc2 d1N Rb7 d3+ Kb3 d2 Kc2 Ne8 Bc3 Nf2 Rb4 Ne4 Qd1 Nd7 Nf4 Qa6 Rh6 Rc1+ Kb3 b1B Nc2 Bf2 Na1 e1N Kb2 Be3 Qa4 d1Q Be2 Bf2 Bg4 Qf3 Rg6 Bc2 Rb7 Bb1 Ba5 Bd3 Rb6 Qc8 Ra6 Rc2+ Kb3 Bd4 Bh3 Bf6 Rg4 Rg8 h8R Rg5 Rh6 Rh5 Rh7 Rc3+ Kb2 Rc2+ Kb1 Bf1 Rf7 Qa3 Rfg7 Bd3 Re7 Rb2+ Kc1 Rc2+ Kd1 Bg5 Nge2 g1B Rh7 Bf2 Ng1 Rb8 a8Q g2 Qb7 Ra8 Qb8 Bg3 Rf7 Ne5 Rfa7 Nd7 Ng6 Kd4 c5+ Kd5 c6 Kc5 c7 Bf6 Nf3 g1B Nf4 Be3 Ng1 Bc1 Nd5 Bcg5 Nf4 Qb7 c8R+ Qc6 Rcc7 Ng2 Rcb7 Qd5 Rb1 Qd4 Rc1 Qe3 Rh4 Bh2 Bf5 Qh3 Rg4 Bg3 Ng6 Nb6 Ne2 Bg8 Bc8 Be6 Ngf4 Nd7 Ng1
1b1N3N/q3qQn1/3Rn1K1/4k2R/qr2n2Q/Bn2b3/1NRqB1nr/n2b3N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 g5 h4 b5 c4 f5 c5+ Ke5 c6 d5 c7 d3 h5 d2 h6 g3+ Kf3 b3 a5 d4 a6 b2 a7 g4+ Kg2 b4 h7 d3 Nc3 b1N Qf3 d1Q Nh3 b3 Nb5 b2 Nc3 d2 Qe3 f3+ Kg1 g2 Kf2 g1B+ Kg3 f2 Qe2 f4+ Kg2 f3+ Kg3 Nc6 Qe3 Qa4 Ne2 d1Q Nhf4 Nd4 Qd2 Nh6 Qe1 Na3 Be3 b1N Nc3 Qd2 Ne6 Rb8 a8R Nac2 Ra2 Qe7 Be2 Na1 Nd8 Ne6 Ra6 Rb4 Nd1 Nc3 Rc2 Bb7 Bg5 f1N+ Kh4 g3 Kh5 f2 c8N g2 Nb2 Nf5 Kg6 Nfg7 Nd6 Ne3 Rh5 f1N Nf5 Bd5 Ng3 Bb3 Nh1 Bf2 Bd3 g1Q Rd6 Ng2 Be2 Be3 Qh4 Qf2 Rc1 Bd1 Rc2 Ng3 Bh6+ N3f5 Bg5 Rg8 h8N Nfd4 Ra6 Ndb3 Bf4+ Kd4 Bd6 Qg1 e5+ Ne4 Nhf7 Rh8 Rac6 Rh7 Nh8 Qge1 Rb6 Qea7 Ra6 Kd5 Bc5 Bd6 Rc6 Rb7 Ba3 Rb4 Rb6 Bb8 Ra6 Nc7 e6+ Kd4 e7 Nce6 Qg5 Qh4 e8Q Qhe1 Qh6 Qh4 Qf7 Qhe7 Rh2 Kd5 Rd6+ Ke5 Qh4 Rh5 Qhf2 Rf5 Rh7 Rh5 Qe1 Rh3 Qh4 Rh2 Rh5+
1r3b2/bQ5K/r3br1n/q1NQ2R1/2RBB3/b2Q1Bnk/N2rb1Q1/1r1r1b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Ke6 h4 f5 a4 d5 c4 b5 e5 g5 c5 b3 c6 f3 Kg3 b4 a5 d3 c7 f2 a6 d2 h5 f4+ Kh2 Kf5 a7 g3+ Kh3 b2 h6 f3 h7 g2 e6 d4 e7 g4+ Kh4 b3 Kh5 g3 e8Q d3 Qa4 Be6 c8Q Na6 Qac4 Nh6 Qe1 d1R Ne2 g1B Nec3 d2 Qb4 g2 Qcb7 Nc5 Qe2 Qa5 Qd4 Ne4 Qdd3 Kf4+ Kg6 Kg4 Qbd5 Ng3 Na2 Rd8 Nbc3 b1R a8B b2 Rh2 Rd6 Qb7 Ra6 Ne4 Ba3 Nc5 Rf8 Kg7 Rf6 Rh5 Bh2 h8Q g1B Bg2 f1B Qf2 Be2 Rg5+ Kh4 Bh1 Kh3 Qfd4 f2 Kh7 f1B Be4 Bf2 Qdd5 Be3 Qg8 Beg1 Nb3 Ba7 Nc5 Bg1 Qg6 Be3 Bf3 Bf4 Be4 Bd6 Qgg7 Bf8 Qg6 Re1 Qg8 d1R Be3 Rd2 Bd4 Rbd1 Rc1 b1R Rc4 Rb3 Qc7 Rb8 Qcb7 Bh5 Bf3 Rb1 Qgg6 Red1 Qge4 Bhg4 Qee2 Bh5 Qg2+ Kh4 Qbb3 Re1 Qe5 Rbb6 Bfb7 Bhe2 Bf3 Red1 Bae4 Rb5 Qd5 Rb8 Qf2 Kh3 Qbb7 Qa4 Qg1 Qa5 Qg2+
3nbn2/3N2b1/RN1n1b1R/nkrb1nB1/Q1b4n/1N2Q3/2B2Rq1/1KRr2b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 Kc6 a4 g5 c4 b5 Kc2 f5 c5 d3+ Kb2 f3 h5 g3 h6 f4 e5 f2 a5 d4 a6 f3 e6 d2 a7 d3 e7 g4 e8N g2 h7 b3 Ng7 b4 Ra4 g3 Qe2 d1B Qe1 d2 Be2 f1N Bc4 f2 Bf7 Bh5 Nf3 d1N+ Ka1 g1B Bf4 g2 Bd5+ Kb5 c6 b2+ Ka2 Nc3+ Kb3 Ne4 Ka2 Ne3 c7 f1B Bb7 Nd6 Bg5 b3+ Ka3 Nc6 Ra6 Nef5 Qg3 Nge7 Rh4 Be6 c8Q Bd4 Ne5 g1B Nf7 Bf6 Ne5 Ng6 Nc4 Bd5 Qc7 Rc8 Nb6 Bfc4 Ne8 B8g7 a8R Nf8 Qd7 Rc7 R8a7 Qa8 Nd2 Rg8 Qe5 b1N+ Kb2 Na3 h8R Bg6 R4h6 Bh5 Qe7 Nd8 Qd4 Rc5 Qe3 Bg6 Kc1 Bgf7 Rh1 Bg6 R8h6 b2+ Kd1 b1N Kc1 Bgf7 Nb3 Nd2 Bc8 Bh5 Rf7 Nf3 Qg4 N3h4 Qd1 Nc2 Kb1 Ncd4 Qc2 N4c6 Qa2 Bf2 Rc1 Na5 Qa3 Bg1 Bb7 Be6 Be4 Rh8 Bc2 Qg2 Qa1 Bed5 Qa3 Ba1 Nf6 Rh7 Nfd7 Baf6 Re7 Be8 Rf7 Nf3 Rg6 Rh1 Rh6 N3h4 Re7 N8f7 Re4 Nd8 Rf4 Bh2 Rf2 Rd1 Qa1 Bg1 Qa4+
r4Q1Q/b2n3K/1q2n1NQ/1q3r2/2Bq2nR/1bk1b3/1qn2B1Q/2RNN1nb b - - 0 1 illegal: No possible last move
qNq2b2/R1R3Nk/6R1/Bb3RnK/1rBqq1Qn/1nb5/4nb2/1qrB2Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 e4 b5 h4 f5 c4 Kf7 a4 Kg7 e5 d5 e6 f3 Kg3 f4+ Kf2 b3 a5 d3 a6 b4 e7 d4 e8B d2 h5 d3 c5 b2 a7 b3 h6+ Kh7 c6 Ne7 c7 Bd7 c8R Ng6 Nc3 b1Q Ra4 b2 Rcc4 Nh4 Nd5 Qc8 Ra5 Na6 Ra2 Bb5 Bh3 g3+ Kf1 g2+ Kf2 g4 Qe2 d1Q Ne3 d2 Rd4 Qa4 Bd7 d1Q Nf5 Qe4 Rc4 b1Q Rc7 Nc5 Bd2 Rb8 a8Q Nb3 Ba5 Qdd4+ Qe3 Rb6 Ng7 Rc6 Ra3 Rc1 Ne2 Rg8 Re1 Rh8 Be6 g1B+ Kf1 f2 Bc4 g3 Bg4 Bh2 Qd5 Bg1 Qh5 Qea8 Rd1 Qde4 Nd4 g2+ Ke2 f1N Ra1 Nh2 Rf1 Bf2 Nc6 g1B Nb8 N2f3 Ra3 Ng5 Bf3 Bh2 Qg4 Qd4 Ra2 Bhg3 Ra3 Be1 Qg1 Bc3 Ra2 Bf2 Ra1 Kg6 h7 Rg8 h8R Qb4 Ne6 Rg7 Rg8 Kh7 Ra3 Re7 Rg6 Rf7 Rc6 Rb7 Ng7 Qe7+ Be4 Qee5 Rc7 Qed5 Bc2 Rb6 Bd1 Qh1 Re1 Qhe4+ Kf1 f3 Re2 Qec2 Re5 Qce4 Rec5 Ba6 Rf5 Rb4 Ra1 Bb5 Ra2 Be3 Ra4 f2 Ke2 f1N Bb6 Bb2 Raa7 Ba1 Ba5 Ng3+ Ke1 Ne2 Kf1 Nhf3 Kg2 Nh4+ Kh2 Ne6 Kh3 Bc3 Qf4 Bf2 Kg4 Ng5 Kh5 Bc6 Qfg3 Bb5 Qg4
K1kqR2Q/1r1N4/1B6/4b3/bRbR1n2/2qqnqQ1/B1rNnb2/q2NN1n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 Kd3 Kd7 e4 f5 a4 b5 c4 g5 h4 b3 a5 b4 c5 f3 a6 g3 h5 b2 e5 g2 h6 b3 h7 f2 a7 g4 Ra3 g3 Ra6 f4 Rb6 f3 Qe2 Ba6+ Rb5 Nf6 Qe1 Nc6 Qa5 Rc8 a8N Bg7 Qa3 Nh5 Qa5 Nf4+ Kd2 d3 Kc3 d2 Qa4 d1Q Be3 d4+ Kc4 d3 Qa3 d2 Nc3 b1Q Nb6+ Kc7 e6 b2 e7 Qa1 e8R b1Q Rh2 Qe1 Nd1 Nd4 c6 Be5 Kc5 Qg6 Bc4 f1N Rb1 f2 Nf3 g1B Ba2 g2 Nc4 Rb8 Qd3 Rb7 Rb4 Rg8 h8Q Qc3 Nb2 Qa1 Ne1 d1B Rh3 Ba4 Nd1 Rg7 Rf3 Qh7 Qg6 Rd7 Qg3 Nde2 Bd4 Qe4 Rd3 Ne3 Rd2 f1Q Rd3 Kb8 c7+ Ka7 c8N+ Kb8 Nb6 Qg6 Nd5 Kc8 Nf6 Rd6 Nd7 Rdb6 Rb1 Rb2 Rd2 Rc2 Rb4 Bf2 Rd3 Qh1 Rd2 Qf5 Rd3 Rc7+ Kb6 g1N Nd2 Qf3 Bc5 Bc4 Rd4 Bd5 Ka6 Rb7 Bb6 Qfd3+ Bc4 Rb8 Ka7 Rb7+ Ka8 Be6 Bb3 Bc4 Ba2
R2r1Q1N/1RrB1KR1/3N1n2/nrBk2Q1/bbb5/rqrq2qN/3q4/2b1N3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 g5 a4 b5 h4 f5 a5 g3+ Kf3 d3 a6 g2 h5 b3 h6 g4+ Kf2 b4 a7 g3+ Kf3 b2 h7 b3 Ra4 d2 Rh3 Nc6 Rb4 Nf6 Qc2 d1B+ Qe2 Ba6 Rh4 Na5 Nc3 b1R Rh6 b2 Na2 Ba4 Nh3 g1B Qf2 g2 Qe2 Be3 Rb3 g1Q Bd2 Rc1 Rb7 b1R Nb4 Rc3 Nc2 Rb5 e5+ Ke6 c5 d5 c6 d4 c7 d3 c8Q+ Kd5 e6 Bb4 Be1 d2 e7 d1Q Bf2 Bc1+ Be3 Qb6 e8N Qd2 Nd6 Rd8 h8N Qg8 Rg6 Rc7 Kg2 f3+ Kg3 f2 Kh4 f4 Kg5 f3 Rg7 Rc3 Bg2 f1Q Kg6 Qfd1 Bf1 f2 Qeg4 Qbd4 Bd3 f1R Bf5 Q4d3 Ne1 Qb3 Qg5 Rf4 Qb8 Rfc4 Bg1 Rc7 Bc5 Qe6 Qc8 Qe5 Qb8 Qeg3 Qc8 Re8 Qb8 Re3 Qf8 Rd8 a8R Rb6 Qe7 Bc4 Kf7 Rb5 Qf4 Qbd1 Bd7 Ra3 Qf1 Q3b3 Qg1 Rc3 Qf8 Qdd3 Qe3 Q1d2 Qg5+
K7/1RRkBnNr/1q1nb3/1b1N1q2/1n1qqn2/b4Q1r/2QNB1NB/b6n b - - 0 1 illegal: No possible last move
QNq4R/1bQ2b2/1r1Nk2b/2q3Qq/2Rbb3/6rQ/1B4Bn/bbb1KR1n b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 d5 h4 e5 c4 b5 a5 g5 f5 e3 a6 g3 f6 g2 c5 e2 a7 e4 h5 b3 h6 b4 h7 b2 c6 b3 c7 g4 Nd2 b1B Ra4 d3 Ndf3 b2 Nh4 d2+ Kf2 e1B+ Ke2 e3 Ng6 g3 Rah4 d4 Rg4 d3+ Kf3 e2 Ne7 Nd7 Rgh4 Bb7+ Re4 Ne5+ Ke3 Ke6 c8R Nh6 f7 Ng4+ Kf4 Rb8 a8Q Rg8 h8Q Nf2 Ke3 Bh6+ Rf4 Nf3 f8Q Nh2 Qc2 d1Q Nc6 d2 Qch7 Be4 Qb4 b1B Nf3 g1B Nh4 g2 Qb5 Rg3+ Nf3 Qe8 Rc7 Qh5 Qd3 Qc2 Qdd8 d1B Bb2 Bc3 Qg5 e1B Rc8 Be2 Qc7 Bc4 Qhh7 Bcd5 Rh8 Bed2+ Ke2 Be5 Rh4 Bc1+ Ke1 Bd4 Nfe5 Qc5 Ba3 Ba1 Nc4 Qf8 Nd6 Qc8 Rg4 Bec2 Qhg7 Ba6 Qh4 Rb6 Nf7 Bb7 Rd4 Kf5 Bb2 Bce4 Nb8 Bc4 Qg8 Bb3 Qh3+ Kf6 Nd6 Bf7 Nf5 Ke6 Rc4 Nhg4 Rh2 Nh1 Qg5 Bge3 Nd6 g1Q Rf2 Bc5 Rf5 Nh2 Rc2 Qd4 Bg2 Qd5 Rc3 Bd4 Rc4 Qc5 Rf1+
k1N4R/nb2K1Rq/qN5r/1Rnr3n/nbn2B1n/3Q2Q1/5nN1/2nN1B1r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 d5 g4 Kd7 e4 Kc7 a4 Kb7 c4 f5 a5 h5 g5 h3 e5 h2 c5 d3 g6 d2 g7 b3 e6 h4 e7 h3 e8Q d4 Be2 d3 Qe7+ Qd7 Qd8 b2 Qc2 d1N Qf6 b4 Ra3 b3 Qg5 d2 Qg2 Nc6 Qf2 Nc3 Qd1 Rh6 Qff1 Ne4 Qg2 Ngf6 g8N Na7 Bb5 Qh7 Qdf1 d1N Ne2 Ne3 Qgf2 Ng2 Q2e1 Nh5 Nbc3 b1N Ra2 b2 Nd1 Na3 Ba4 b1N Qc3 Nc4 Rg1 h1R Bb5 h2 c6+ Kb8 a6 Bb4 Qg7 Nc5 Ra5 Bb7 Nf6 Nc3 Qg3 N3a4 Be3 Ncb6 Bd3 Nc4 Rb5 Nh4+ Kf2 Kc7 Nd7 Rd8 Qfh3 Kc8 c7 f3 Rg2 f4 Qf5 Na5 Bc4 Nab3 Qd3 Nc6 a7 Nc1 Nb8 Rd5 a8R Na7 Bd2 Ba6 Rg1 Rb6 Nd7+ Kb7 Ra5 Rf6 Rh8 Rh6 c8N Ka8 Rb5 Bb7 Nd4 Ba5 Nf5 Bc3 Nfe3 Bb4 Kf1 f2 Ng2 N1b3 Ke2 f1N Kf2 f3 Bf4 Nfd2 Ke3 f2 Qb1 Ba5 Bf1 Nc1 Qd3 Bb4 Rd8 Ng6 Rh8 Nc4+ Kf3 Nh4+ Kg4 Rd4 Be2 f1Q Kg5 Qe1 Bf1 Qe6 Be3 Qa6 Bf4 Rdd6 Qge3 Ng3 Ne1 Nh5 Rg3 Rd4 Ng2 Rg1 Rg4 h1N Qg3 Ng6 Kf5 Nf2 Rg5 Ncb6 Rg4 Nh4+ Ke5 Rh1 Rg6 Ng7 Kf6 Rd5 Ke7 Nh5+ Rg7 Nc4 Ndb6+
B5bB/1rN5/2Q2rb1/2r3Rr/1r1n1r1n/NNbkn1N1/Kb5Q/n3qQ1R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 c4 Kf5 Kc2 Ke4 Kb2 d5 h4 b5 a5 g5 c5 f5 a6 f3 h5 g3 e3 g4 a7 g2 h6 b3 c6 b4 c7 g3 h7 d3 Ra6 d4 Ra4 d2 Na3 f2 Kb1 f4 Ba6 f1R Qg4 d1N Qh5 b2 Bb7+ Kd3 e4 f3 e5 f2 e6 Qe8 e7 Nh6 Qh4 Nc6 Qh2 Be6 c8Q Ne3 Qb8 Bg7 Qc7 Bg8 Bc8 Nc2 Qb8 Nf5 Nc4 Nh4 Nb6 Na1 Qc7 Rb8 a8N Rb7 Nf3 g1R Ng5 g2 Ne6 Be5 Ka2 b1R Ra6 b3+ Ka3 b2 Ra5 Bf6 Bh6 Rbc1 Bd7 b1B Bg7 Rc5 Nc4 Bc2 Qb6 Rb1 Qf4 f1R Ka2 Rb4 Na3 Rf2 Qh2 Rgf1 Nc7 g1B Bc8 Rf4 Qh3+ R1f3 Qf1+ Kd2 Qba6 d3 Qc4 Bf2 Nd4 Be1 Nb3+ Ke3 Bd7 Nd4 Bc6 d2 Be4 d1N Qa6 Qf8 e8N Bc3 Qc6 Qe7 Nd6 Qe5 Bd5 Bg6 Ne4 Qe6 Ng3 Qe8 Qg2 Kd3 Qh3 Qe1 Qf1+ Ne2 Rb5 Bb2 Ra5 Bfc3 Bd4 Rf6 Rb5 R3f4 Bf3 Rh5 Rg5 Ne3 Bg2 Bc4 Bf3 Rc8 h8Q Bg8 Qh6 R6f5 Bh8 Rf6 Qg1 Nd4 Qf8 R6f5 Qh2 Rc5 Qf7 Rf8 Bg2 Be4 Qf5 Rf6 Qfh3 Bg6 Bf3 R6f5 Qf1+ Ne2 Na6 Re7 Qe6 Rf6 Ba8 Rec7 Qc6 Rcb7 Qff3 Nd4 Nc7 Rcb5 Qfg2 Rc5 Qf1+
nr3B1Q/N3n2b/Qb2B1q1/1N1rn1kn/RK1b1Br1/2R1bb2/r1B4R/6b1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kf6 f4 e5 a4 b5 c4 d5 h5 g5 c5 e3+ Kd3 e2 c6 e1N+ Kd2 e4 a5 b3 c7 b2 a6 d3 Kc3 d4+ Kb3 d2 h6 e3 f5 d3 a7 b4 h7 g3 Rh4 g2 Qh5 d1B+ Kc4 d2 Re4 e2 Rg4 b3 Ra6+ Nc6 Rd4 g4 Rf4 g3 Rh4 Ne7 Ra3 Qd6 Ra1 Nd3 Nf3 g1B Ra6 e1B Re4 g2 Be2 Nf4 Ra3 Rg8 h8B+ Bg7 Nc3 b1N Bd3 b2 Nd4 Bef2 Ndb5 Be3 Bc2 Ne5+ Kb3 Ba6 c8B Bf3 Be6 d1R Rea4 Rd5 Qh7 Qc6 Kb4 Kg5 f6 Nh5 f7 Nd2 f8R b1R+ Bb2 Bf6 Bg7 Ndc4 Qh8 Nb6 Rb3 Rb8 a8Q Ra1 Na7 Bd3 Ncb5 Bh7 Rc3 Ra2 Re8 Bgf2 Bf8 g1B Qb7 Rg6 Qa6 Na8 Rc8 Qe8 R8c4 Rg8 Rh4 Qg6 Rh2 Bb6 Bc1+ Bfe3 Ba3 Nd7 Bc1 Bfd4 Bd2 Ne5 Be1 Rg7 Bf2 Rf7 Be1 Rf4 Bg3 Rg4 Bf4+
2r1B1qn/k2R1QBR/b1n1r1rQ/3Nn2N/Kn6/2bR3b/1bn1N3/N1rn4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 Kc6 a4 Kb6 c4 g5 Kc2 f5 Kb3 f3 a5+ Ka7 a6 b5 h5 f4 e5 d3 h6 g3 c5 g4 e6 f2 h7 d2 c6 f3 e7 d4 e8N g2 c7 d3 Na3 g3 Qc2 d1N Qb1 d2 Bd3 f1R Bb2 f2 Bf6 Nb2 Ne2 g1N Bg5 d1N Rh3 g2 Rh4 Bg7 Nd4 Ne7 Ndc2 Re1 Rh2 f1B Ne3 Nbc6 Bc4 Nf3 Bf6 g1B Rh5 Rg8 h8Q Nd3 Rh7 Bch3 c8R Ng6 Ng2 Re6 Qa2 Bd4 Nc2 Nfe5 Nf4 Bc3 Ne2 Qd5 Rd8 Rc8 Rb1 Qg2 Na1 Qg4 Rh4 Qg5 Qh6 Nh8 Rb2 Qg1 Rd2 Qg2 Be7 Bf6 Bf8 Rg6 Ng7 Bb2 Nh5 Qg5 Kc2 b3+ Kb1 b4 Bb5 Bc3 Bg7 b2 Kc2 b1N Kb3 Na3 Ka4 b3 Rd5 Ndb4 R2d3 b2 Rd7+ Kb6 a7 b1R Qd5 Rc1 Qf3 Nac2 a8N+ Kc5 Nc7 Kb6 Qf5 Ka7 Qf3 Bb2 Qf5 Nf3 Qf4 Bfc3 Qf7 Nfe5 R7d6 Na5 Be8 Nac6 Rd7 Rgf6 Bf8 Qg8 Bg7 Rg6 Qd2 Bfg2 Rg3 Bd5 Nhf4 Ref6 Rh7 Rd6 Rd3 Rde6 Nh5 Bc4 Qh6 Ba6 Nd5+
3R1KQ1/3BNn1r/nr4Nn/qQk2Nnr/8/B3rRNr/7r/1bb1rQ1r b - - 0 1 illegal: No possible last move
1Bqq4/2R3n1/r2nQ2R/2nb1b2/r1Rk1N1N/pb2b3/1bQr4/1B2BKBq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 Ke7 h4 Kf6 b4 Ke5 e4 g5 c5 f5 h5 a5 h6 d5 h7 a3 c6 d3 b5 d4 b6 f3 c7 a2 b7 g3 Ne2 f2+ Kd2 g4 Rh3 a4 Qc2 g2 Rh2 g1Q Nbc3 g3 Nd1 f4 Rb1 a1Q Qb2 a3 Rh1 f3 Qc3 g2 Rb2 Ra6 Ne3 Nh6 Rb6 Nf7 Qc4 Qc3+ Kd1 d2 Rh4 Bg7 Rg6 Nd6 Rf4 Bf5 c8R Nd7 b8B Nc5 Rc7 Qh1 Rh6 g1B Ng2 Rf8 h8B Ra4 Ba7 Rf6 Nh4 Re6 Bg2 f1B Bb8 f2 Rf3 Rf6 Bh3 Bg2 Nf4 f1N Ke2 d1R Bd2 Ne3 Be1 Qc1 Qd3 Qc4 Bg4 Qa6 Bh5 Qac8 Bg6 Re6 Qc2 Rd3 Bg3 Rd2+ Ke1 d3 Bh7 Kd4 e5 Rf6 e6 Rg6 e7 Bf6 e8Q Be5 Rf1 Bd5 Qe6 Bh3 Bg7 Ke4 Qe7 Ndb7 Qf7 Bb2 Qb3 Rh2 Ne2 Nf5 Rf3 Rga6 Bd4 Nd6 Nf4 Rc2 Bgf2 d2+ Ke2 Bg4 Be1 d1B+ Kf1 Rd2 Rc3 Bc2 Be3 Ke5 B3f2 Ng7 Bf5 Bcd1 Bb1 Bf5 Qg6 Bc1 Qb2 B1b3 Qc2 Bb2 Nh3 Bh2+ Bg1 Bf4 Qf7 Be3 Nf4 Kd4 Qe8 Nh5 Qe6 Ng7 Rc4+
1nRr4/2Q3BN/rnBQp1Kn/bn5n/4N2b/2q1Bq1N/NR2kq2/3r3b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 a4 Kh5 f4 Kg4 c5 h5 g3 b5 a5 d5 c6 e3 Kd3+ e2 c7 e6 a6 h3 a7 h2 f5 b3 f6 b2 f7 h4 Bg2 b4 Na3 b1Q+ Qc2 e1B Bb2 b3 Nh3 Qc1 Nb1 Qf6 Ng5 h3 Na3 Ba5 Nb1 Nh6 Rg1 h1N Ra2 h2 Nc3 Be7 f8B Qf2 Bg7 Rd8 Nh3 Bb7 c8N Bh4 Nd6 Bc6 Ba3 b2 Nde4 b1N Rb2 Nd2 Na2 Nc4 Bc5 Nb6 Qc4 Qce1 Qa6 Qb4 Rc1 Qbe1 Qb7 Qb4 Qc7 Bb7 Bf1 Kf3 g4 Ng3 g5 h1Q g6 Nh5 Rc3 Qfg1 Kd2+ d3 Be3 d4 Bg2+ Kg4 Bf1 Qf3 Be2 Qg3 Bd1 Qc5 Ba4 Qc4 Bc6 Qgf2+ Kc1 d2+ Kc2 Qb4 Kd3 d1N Rc5 Nc3 Qd6 Na6 Rc4 Rac8 a8Q Nb5 Qa7 Ra8 Qab8 Qbe1 Qbc7 Nb8 Rcc2 Ra6 Rc3 Na4 Kc4 d3 Rcc2 Na3+ Kd4 d2 Ke5 d1R Be8 Rd3 Qcc5 Bb6 Nd2 Qc6 Bf6 Rc3 g7 Nb5 g8N Rd3 Bg7 Ba5 Nf6+ Kg3 Rc1 Nb6 Nh7 Qd1 Qc4 Qc7 Bd7 Bh1 Ne4+ Kf3 Qc6 Qde2 Qb7 Qcc2 Qa7 Qb3 Rc8 Rd1 Bc6 Qa3 Qac7 Qd2 Bg5 Ke2 Bf4 Qaf3 Bg5 Nf4 Kf6 Nh5+ Kg6 Qc2 Bd2 Qcc3 Be3+
rbr1n3/B1b2Q1K/1N1r2B1/r1k1B1p1/3nbRR1/Bq6/1rN1r3/1n1Qr1Q1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 h4 e5 c4 Ke7 a4 Kd6 f4 b5 a5 e3+ Kd3 e4+ Ke2 g3 a6 b3 a7 g2 f5 b4 h5 b2 f6 b3 f7 Nc6 h6 Bb7 h7 Nf6 Ra4 Qb6 Nh3 g1B Nf2 Kc5 Na3 b1R Rh4 d5 Rg4 Bd6 f8B b2 Bg7 Rhb8 h8B Ne8 Be5 Bc7 Bhf6 Qb3 Nd3+ Kb6 Bd8 Rc8 Nb4 Kc5 Bg2 Bh2 Bh3 Rab8 a8Q Bg3 Qa6 Ra8 Rf4 Ra1 Bf5 b1N Bg6 Bb8 Nac2 Ra2 Ba3 Rb2 Rg4 Ne7 Rf4 Nf5 Qe6 Bc7 Qf7 d3+ Kf1 d4 Kg2 d2 Kh3 d3 Kg4 e2 Kh5 e1R Ne3 Bb8 Ned5 e3 Nb6 Nd4 Kh6 Be4 Kh7 Re2 Qg1 d1R Rg4 Bd6 Bc7 d2 Bb8 Bf4 Ba7 Bc7 Qh1 Bb8 Na2+ Kc6 c5 Ne6 Bc7 Bg2 Bd3 Rf2 Rb4 e2 Rb5 e1R Qg1 Re5 Bf5 Rde1 Rb4 d1R Bg6 Rcd8 Rc4 Rfe2 Nb4+ Kb5 c6 R1d5 Re4 Nd4 Bd6 Re6 c7 Be5 Ref4 Be4 c8Q Rc5 Qcc7 Rc8 Rf6 Rd5 Qc1 Bg3 Qd1 Bf4 Bf8 Bfc7 Bg7 Red6 Rff4 Rc5 Nc2 Kc6 Be5 Ra5 Nb4+ Kc5 Nc2+
1n1r4/BbNR3B/1K3RQ1/4B1N1/k1R2rr1/2rQ1Bbp/2b1r2q/3qnr1r b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc6 g4 e5 c5 b5 f5 e3 Kd3 e2 f6 e1R f7 b3 g5 h3 a5 e4+ Kd2 h4 g6 b4 g7 e3+ Kd3 Kb5 c6 e2 a6 b2 a7 b3 c7 h2 Bh3 Qd6 Ra4 Ne7 g8Q Nf5 Qg5 Rf1 Qg8 e1R Qg6 Ne3 Qdh5 Bb7 c8B Ng2 Be3 Rf4 Qhh6 Rg8 Ra6 Re2 Bhf5 h3 Qhh7 Bh6 Rb6+ Ka4 Na3 b1R f8B b2 Nb5 Rbf1 Nf3 b1R Bg7 Rbc1 Nc7 Rd8 Rg1 h1R Be5 Rg4 Rc6 Bf4 Ng5 Bg3 Rc2 Rff4 Rd1 Rb1 Rdd2 Rbf1 Bce6 Rc8 Be4 Rd8 Bf3 Rc8 Rc6 Rd8 Bf5 Rc8 Kc2 d3+ Kc3 d4+ Kc4 Ne1 Rd1 d2 Rc5 Ka3 Kb5 d3 Rc6 Rd8 Kb6 Ka4 Rc1 d1B Rc4+ Kb3 B3d4 d2 Qd7 Bc2 Qdh7 Qf8 Rf6 d1Q Bf2 Rd3 Qd7 Rc3 Qd3 Qa3 Bc5 Qb2 Be3 Nc6 B3d4 Rf8 a8R Nb8 Ra5 Rd8 Rd5 Qbc1 Rd7 Qcd2 Qf7 Ka3 Bh7 Kb3 Rc5+ Ka4 Qfg6 Re3 Rcc6 Qh2 Rc5 Re2 Rc4+ Ka3 Ka5 Kb3 Ba7 Ka3 Kb6 Kb3 Rc5 Ka4 Rc4+
BQ1N2b1/4KR1b/RQBn1Q2/br6/2b1k1p1/r1Qqbb1q/3BNn2/6bq b - - 0 1 illegal: No possible last move
1Nbb4/3q2RK/nRq1B3/1pQ2R2/N3QbbN/b1B2bb1/rn1n1N2/3r3k b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kg6 c4 Kf5 a4 Kf4 a5 b5 h5 g5 c5 e5 h6 d5 c6 e3+ Kd3 g3 f3 g2 h7 Kg3 a6 g4 c7 e2 a7 e1N+ Kd2 b3 f4 d3 Ke3 d4+ Ke4 d2 f5 d3 f6 b2 f7 Qd7 Rh5 Nf6+ Ke3 e4 Nf3 Ba3 f8Q Na6 Qe7 Rd8 Qb3 d1B h8R d2 Qa4 Nd3 Nc3 b1Q Nh4 Kh2 Rf5 g3 Rh6 Bg4 Nd1 g1B+ Nf2 d1B Bh3 g2 Bd2 Qc2 Qc5 Nb2 Kf4 e3 Kg5 e2 Kg6 e1B Qe4 Bdf3 Bc3 Bd2 Rh7 Bf4 Rg7 Bg3 Rd1 Bf4 Rd6 Qc1 Qed5 Ne4 Kh7 Nd2 Rb6 Qc2 Qdc6 Qe4 Qe6 Qec6 Qe4 Bg3 Nd1 Be3 Nf2 Bb7 c8N g1B Ne7 Bef4 Rfg5 Bc8 Rf5 Rb8 a8N Rb7 Nc7 Ra7 Ncd5 Ra8 Be5 Ra7 Nc3 Ra8 Na4 Ra7 Nd1 Kh1 Bc3 Bd4 Bf1 Bde5 Bc4 Bf6 Be6 Rf8 Neg6 Bd8 Ne5 Rf6 Bf7 Rd6 Be6 Rd3 Nf2+ Kh2 Bb3 Qh6+ Kg8 Nf1 Be6 Rd1 Ned3 Nc7 Bc4 Bb4 Ne5 Nd2 Nc6 Ra6 Nb8 Qhc6 Kh7 Ra5 Ba2 Na6 Be6 Kg1 Qce3 Bf8 Nc5 Ra2 Na4 Ba3 Qc5 Kh2 Nh3 Kh1 Nf2+
B1R2B2/p1QN1N2/2bK4/2Rb3k/3r1nr1/rnBB1bn1/1r4bb/r2Rq2Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 d5 Kd3 f5 g4 Kf7 e4 Kg6 b4 h5 c4 a3 e5 f3 c5 f2 c6 h3 b5 h2 e6 f4 c7 f3 b6 a2 e7 h4 e8R h3 b7 Qe7 g5 Rh4 Nc3 Nc6 b8B Kh5 g6 Rg4 g7 Bd7 c8B Nf6 g8Q Qe1 Bd2 Bd6 Qc2 Na5 Be2 f1B Bg5 f2 Qb1 Bg2 Re3 f1R Rf3 Bc6 Qd8 Nb3 Ne4 Bc7 Re3 Rf3 Bb7 Bg3 Bbf4 Rb8 Be5 Bf4 Qc1 Rfg3 Rb1 a1R Bh6 Rf3 Ba8 Rb5 Kc2 d3+ Kb2 d4 Nc5 d2 Qc7 d1R Rc3 d3 Nd7 d2 Bf8 Rb6 Bd3 Nd5 Rc5 Bg3 Kc2 Nf4 Kc3 Re3 Nf3 Bd5 Rf1 h1B Ng5 h2 Bh8 Bc6 Kc4 Bgd5+ Kc3 Bhg2 Nf7 h1N Rb2 Rb7 Rc2 Bh2 Qb1 Ng3 Rh1 Na5 Kd4 Rb2 Be5 Bde4 Rg1 Nb3+ Kc4 Bed5+ Kb4 Rc1 Bc3 d1B Rh1 Bdf3 Rf1 Qd2 Rd1 Qe1 Rc4 Nd4+ Kc5 Nb3+ Kd6 Ra3 Rc5 Re4 Re2 Rb4 Re8 Rd4 Qa1 Rcb1 Rc8 Rc1 Qa2 Ra1 Qb1 Qf1 Qc1 Qe1 Rd2 Qe8 Qh1 Qe1 Rd1
1k6/1q1nq3/4QbQ1/2Q1QK2/b4B2/1bnrbB2/1rq1bRbp/1Nn1NBR1 b - - 0 1 illegal: No possible last move
1K2NBn1/nBBr1n1q/R2q3r/1Q6/r5Bq/rrpbr3/1bk1NQR1/1N6 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 d4 b5 g4 h5 a4 f5+ Kf3 Kd5 a5 c3 g5 Kc4 g6 c2 e4+ Kb3 a6 h3 d5 h2 d6 h4 g7 c4 d7 c3 a7 h3 e5 Rh4 e6 Ba6 e7 Nc6 Kf2 f3 Ke3 f4+ Ke4 f2 Kd5 f3 Bd3 f1R Kd6 f2 Bf5 Re1 Ra2 f1R Ba3 Re3 Qd3 c1N Qe2 Rd1+ Rd2 Nd3 Qg2 Nde5 Qg4 Nf7+ Kd5 Qc7 Kc5 Qd6+ Kb6 Rh6 Rd3 Kc2 e8N b3 d8B b4 Rd5+ Bd3 Kb7 b2 Nd2 b1R Qg5 b3 Ne2 b2 Rg1 h1Q Bc7 h2 Ra5 Ra1 Bg4 b1R+ Qb5 Rb3 Rg2 Be7 Bc5 Ra4 Nb1 Qe1 Bb4 h1Q Ra6 Qh5 Bc5 Qeh4 Bb4 Qhg6 Ba3 Qh7 Bb4 Rc8 a8B Na7 Ba3 Rd8 Bb4 Rd7 Kb8 Rf1 Bb7 Raa3 Bc5 Rf4 Bb4 Bg5 Bc5 Rfa4 Bb4 Ne7 g8Q Bf4 Qg7 Ng8 Qg6 Re5 Qg7 Bc1 Qf6 Bb2 Qf2 Re3 Bc5 Qdh2 Be7 Qd6 Bf8
2rr1Nr1/1R1r4/3Br1n1/nNk1b2p/2n3Q1/3q1Bqb/2bN1RR1/r2R1QK1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kd6 e4 h5 a4 f5 g4 b5 g5 f3 g6 b3 a5 d3 a6 d2 g7 b2 a7 b4 Qb3 d1R Ra5 h3 Ne2 h2 Nf4 Qg5 Be3 Ne7 g8R Bg7 Rg1 h1R Be2 Nbc6 Nd3 f4 Rf5 Na5 Rd8 Ng6 Qc3 b3 Qd2 Rg8 Rg3 Rhe1 e5+ Kc6 c5 d5 e6 d4 e7 Kb5 Re5 Bh3 e8R Rc1 Rd7 Rd8 c6+ Kb6 Nc5 d3 Qc2 d2 c7 d1R Qc4 Kc6 Rf7 R1d7 Rg2 Qg4 Re4 Bd4 R8e5 Kb6 Nd2 b1N a8Q b2 Ne6 Na3 Nf8 b1B Rff5 Rc3 Qd3 Bc2 c8N+ Kc7 Qb8+ Kc6 Qb4 Ra1 Bd1 Qg3+ Kg1 Rc5 Nd6 f2+ Kh1 f3 Bf4 Rc3 Rb5 Bh8 Re1 f1Q+ Rg1 f2 Rb7 Qe2 Nb5 f1R Bd6 Bg7 Rf7 Rf6 Qg4 Re6 Rf2 Be5 Rgg2 Qee3 Qf1 Qd3 Kg1 Rc5 Rf7 N3c4 Rf2 Kd5 Be2 Rcc8 Rd1 Kc6 Bc7 Kd5 Bf3+ Kc5 Bd6+
N1n1nbNk/1q2pQ1n/1Q1b3n/1r3R2/1RBrR1n1/3Qq3/2Kn3B/1rR4b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Kg7 c4 b5 g4 d5 f4 h5 a5 h3 f5 h4 c5 d3 c6 b3 a6 b4 c7 e3+ Ke1 e2 Kd2 e1B+ Ke3 b2 g5 b3 a7 h2 g6 h3 Ra3 d2 Kd3 d4 Ra1 Na6 Qg4 d1N Nc3 b1N Na4 b2 Kc2 d3+ Kb3 d2 Nc3 Nh6 Bd3 Qd4 Qe2 Bg3 Kc2 Nf2 Nd5 d1N Bf4 Ne4 Bc4 Ndc3 Nf3 Nb5 Qd3 Qe3 Nb6 Ng5 Ne5 Nh7 Ra4 Nd6 Nf7 Rb8 a8R Nd2 Rb4 b1R Rc1 Bb7 c8Q h1N Qc5 Nc7 Raa4 h2 Na8 Nf2 Qb6 h1Q f6+ Kg8 g7 Nce8 Be5 Nc8 Bf4 Nfg4 Bc7 Bf2 Bh2 Qd5 Ne5 Bg3 Nd7 Kf7 g8R Bd6 Rg5 Bc6 Rh5 Kg8 f7+ Kg7 Nf6 Rb7 Qd8 Rb5 Rf5 Rg8 Qc7 Kh8 Qb6 Rg5 Ng8 Qde4 Rff1 Rgd5 Rf2 Rd4 Rf5 Bg7 f8Q Qh1 Qf7 Bf8 Ra1 Bb7 Re1 Qc6 Re2 Qc7 Re1 Bh1 Rc1 Qb7 Re1 Rb3 Rac1 Rb1 Re2 Qf4 Re6 Qe3 Re4
r2q2Q1/1N1pBB2/2Qr4/2B4K/r1rnb3/Nqr2Rb1/Q2Qkq1R/2r2n1b b - - 0 1 illegal: No possible last move
2R2n2/3pn3/2BR1Qb1/qbq1qqN1/B2n3Q/3NqkBr/2Rb3r/1KR1q3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 g4 Ke6 c4 Ke5 Kc2 Ke4 a4 h5 a5 b5 a6 f5 a7 b3+ Kb2 h3 c5 h2 c6 b4 g5 f3 e3 h4 c7 d3 g6 f2 g7 h3 Bd2 f4 Kc1 f3 Qe2 b2+ Kd1 b3 Bc3 d2 Qb5 Bb4 Na3 b1N Qa6 b2 Kc2 Ne7 g8Q Ng6 Qf7 Nc6 Nc4 Na3+ Kd1 b1B Bg2 Nb5 Qh7 Nbd4 Ne2 Ne7 Qf6 Ba6 c8R Qa5 Nc1 Bb5 Nd3 Rb8 Rf1 h1Q Ra2 h2 Rc2 Qg1 a8B+ Rb7 Rc6 h1Q Rd6 Qhh2 Qhh4+ Qf4 Re1 f1Q Bh1 Qh3 Rf1 Ndf5 Be5 Nd4 Re1 Nf8 Rf1 Qfg4 Bg3 Qf4 Bg2 Qe6 Re1 Qd5 Bf1 Ra7 Bc6 f2 Be2 Qh2 Bf1 Kf3 e4 Qh3 e5 Qhf5 e6 Q4e5 Ne3 Qde4 Nd5 Rh6 Nc3 Ra6 Qhg5 Rh3 Qh4 Q4d5 Ne4 Qc5 Nc1 Rh2 Bc4 f1Q Nd3 Qh3 Bb3 Bc3 Ba4 Ra8 Qhg5 Qh6 Qh4 Qe3 Rg1 Nfg6 Rh1 Rh8 Re1 Nf8 Rh1 Nd5 e7 Bb4 e8R Ne7 Rc8 Bc3 Qhg5 R8h3 Re1 Ba2 Qh4 Bf7 Re2 Bg6 Rc1 Nb3 Kc2 d1Q+ Kb1 Bd2 Rg2 Nd4 Re2 Qe1 Rg2 Bc3 Rc2 Bd2 Ng5+
qRrb1q2/1pQb2rq/kb6/7Q/4B1R1/1K2brBb/1N4n1/NQQRb2n b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 d5 f4 Kd7 h4 Kc7 a4 Kb6 c4 g5 Kc2 e5 f5 g3 h5 e3 f6 g4 h6 d3+ Kb2 e2 h7 e1R f7 d2 Nc3 g2 Rb1 d4 Nge2 g1B Nb5 g3 Rh3 g2 Rd3 e4 Kb3 e3 Nf4 e2 Ra1 Nh6 Re3 d3 Re7 Bh3 Nd4 Nd7 Nb5 Nc5+ Ka2 b3+ Ka3 b2 Re4 b1Q Nd4 Ng4 Nb3 Rg8 h8Q Be7 f8Q Nf2 Qf7 Nh1 Qhh5 Qf8 a5+ Ka7 a6 Ne6+ c5 Bd8 Qe7 Rg7 c6 Bgb6 c7 g1B Bg2 Rf1 c8Q e1B Qb4 Bgf2 Qc7 Rc8 Bb2 Bfc5 Be5 Be3 Qdc2 d1B Ka4 d2 Nd3 Ng5 Rg4 Nf3 Bg3 Nh4 Qbc3 Bf3 Q3c4 d1Q Nb2 Qd5 Qch7 Qbe4 Rd1 Qg5 Na1 Qa5+ Kb3 Qef5 Rd6 Bc6 Qc1 Bd7 Rd1 Rf4 Bd5 Rf3 Q7g6 Ng2 Bc6 Qf5c5 Qgb1 Qcf5 Be4 Qh7 Q7c3 Bbc5 Q3c2 Kb6 a7 Qa6 a8R Qa7 Bg6 Ka6 Rb8 Qa8 Be4 Bcb6 Qc7
2N5/2Bb3n/3NQbQ1/1r4qq/1N1Nr1qk/1KR1b2p/1RBr3R/1r2nrq1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kf6 c4 d5 Kc2 b5 g4 h5 a4 e5 a5 b3+ Kb2 d3 a6 e3 f5 Kg5 f6 b4 f7 d4 a7 d2 c5 e4 c6 h3 c7 e2 Na3 e1B Nb5 e3 Bg2 h4 Bb7 e2 Nc3 h2 Na2 h3 Bd5 d3 Qc2 Bf2 Bg2 e1Q Bd5 Kh4 g5 d1Q g6 d2 g7 Nc6 Qf5 Be7 f8R Ne5 Bg2 Nf3 Ne2 Bd7 c8N Nf6 g8Q Nh7 Rf7 Bf6+ Qe5 Qg1 Qg6 Ne1 Be4 Be3 Bf5 Re8 Nd4 Qdg4 Qe6 d1Q Nd6 Qh5 Bc2 Qdg4 Rb1 Qda5 Qe7 Qag5 Qe6 Rad8 a8N Re7 Nb6 Ree8 Qc4 Re4 Rf8 Rb8 Nbc8 Rb5 Qe6 Rd5 Bd2 Rb5 Nc1 Rd5 Nd3 Rb5 Ka1 b2+ Ka2 b3+ Ka3 Rd5 Ba5 Rb5 Rc1 b1R Nb4 b2 Bc7 Ra1+ Kb3 b1R+ Kc3 Rb2 Rb1 Rba2 Rb2 Rb1 Kb3 Qf1 Rg1 h1R Rg3 Qg2 Rf3 Rf1 Rf2 Qg1 Rh2 Rd1 Re8 Rd2 Rf8 Ra1 Rg8 Rb1 Rf8 Bd8 Rf3 Bf6 Rg3 Bf4 Rd3 Be3 Rc3
Bqn1B1qR/1nBKQQ2/3b4/1n4r1/r7/Br3p1Q/2Nqb1nr/2Nr1Rk1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 e4 g5 c4 d5 a4 f5 h3 Kg3 a5 Kf2 h4 b5 a6 b3 a7 d3 c5 d4 h5 b2 c6 g3 c7 g2 h6 b4 h7 g4 Rh3 d2 Rh2 b3 Bb5 g3 Na3 b1Q Be8 d3 Nc2 b2 Bg6 Na6 Bf7 Nc5 Rh3 Ne7 Ba2 Ba6 Ne2 g1R c8Q g2 Qe6 Nc8 Qc6 Qd5+ Kf6 Bd6 Nc3 Bb5 Qg4 d1N e5 d2 e6 Be2 e7 Kf1 Na4 Nc3 e8Q d1Q Qgh5 Qg8 Qce4 Qd2 Bf7 Rh1 Qf8 g1R Be8 Rg5 Qee7 Kg2 Qfg7 Rf1 Qgf7 Kg1 Rh2 Re1 Ra3 Rd1 Qf3 Rb8 a8B Rb4 Nb6 Ra4 Nc4 Qa2 Q3h5 Qb3 Ne5 b1R Nd3 Qb8 Qf3 Nb7 Ke6 Rb2 Kd7 Nb5 Rc3 Rb3 Ba3 Nca7 Q3h5 Nc8 Rc4 f3 Rch4 f2 Nc1 f1N Rf2 f4 Qf3 Rg2 Qfe3 Rh2 Qh3 f3 Rh5 Ne3 Rh6 Qg7 Rh4 Rg8 h8B Ng2 Rh6 Qf8 Ba1 Rg5 Rh8 Qg8 Be5 Bb4+ Bd6 Bd3 Bc7 Bd6 Qe2 Bc4 Qee7 Be2 Rf1+
1NBQ2n1/2b1q1k1/n4r2/4bR1K/2N1r1pR/1qqRQr1N/6qB/r1R2b1q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 f5 h4 Kf7 c5 d3 e5 d2 e6+ Kg7 e7 b3 e8R d4 h5 b4 c6 g3+ Kf3 g4+ Ke2 f3+ Kd3 b2 a5 b3 a6 f4 Ke4 g2 c7 d3 a7 f2 Rh4 f3 Kf4 Qe7 Rh1 Na6 Be2 f1R Qe1 d1Q Ra3 d2 Bc4 f2 Qe3 Qe1 Nh3 d1Q Nd2 b1R Be6 g1B Nc4 b2 Rd3 Qc3 Bd2 Bb7 c8Q Ra1 Qd8 b1Q Bc8 Bh2+ Kf5 Rb8 a8N Qbb3 Nab6 Bg2 Nd7 Rb6 Nb8 Rf6+ Kg5 Be5 Bc1 Qe2 Ba3 Rfe1 Bd6 f1Q Rg1 Qff3 Rf1 Qa8 Rf5 Bf1 Bc7 Qh1 h6+ Kh7 Kh5 Qeg2 Bd6 Bg7 Rf8 Bh2 Rc5 Rf3 Bf4 Be5 Rf5 Bc7 Bd6 Be5 Rc6 Bf6 Bh2 Bfe5 Rd1 Re2 Rc1 Ref2 Rd6 Re2 Rd3 Ref2 Rg5 Rf6 Rf5 Rf3 Kh4 Kg6 h7 Kg7 Kh5 Nh6 Qd6 Re8 h8R Ng8 Qd7 Rd8 Qe8 Rd4 Qd8 Rdf4 Kg5 Rd4 Rh4 Re4 Kh5
N4Rkn/5nrN/1Q1nqb1b/3qQrR1/RR2p3/Bb1n4/B1B4r/K1n3r1 b - - 0 1 illegal: No possible last move
NBqQ4/1Rr2b2/br3bb1/Nk1Nrn1B/n3pqQq/1Kb5/2Nq3B/5R2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 g4 b5 f4 d5 a4 Kd7 c4 Kc6 Kc2 e5 a5 h3 g5 h4 a6 b3+ Kb2 e3 c5 e2 g6 e1B a7 h2 g7 d3 f5 d2 f6 h3 f7 b4 Na3 d4 Bd3 Nh6 g8N Na6 Nc4 Rh7 Bf5 d3 Ne3 Bg7 f8B Bf6 Nf1 Kb5 c6 Nc5 c7 Na4+ Kb1 b2 Ka2 b1B+ Kb3 Ba6 c8Q Rc7 Qc2 d1Q Ne7 d2 Ng3 Qg4 Qd1 Qf4 Bg6 Nf5 Nh5 Qd7 Qd8 Qc8 Nf3 Bc2+ Ka2 b3+ Ka3 b2 Rf1 b1R Nc6 h1Q Bd6 h2 Na5 Rb8 a8N Rb6 Ra2 Bb3 Rb2 e4 Be5 Qg2 Bf7 h1Q Nd4+ Kc5 Qe2 d1B Nc2 Bc3 Qg4 Kb5 Be3 Qd2 Bg1 Qh3 Bh2 Qh4 Bd6 Rc1 Rb1 Re7 Bb8 Re5 Rb2 Be2 Bg6 Bc4 Rb1 Bf7 Rb2 Qfg5 Nf4 Be8 Bh5 Bg6 Nd5 Qgf4 Ndb4 Bbf7 Nd5+ Bb4+ Kb3 Bc3 Rb1 Bb2 Na1 Rc7 Nc2 Bc3 Rbd1 Qc1 Rd4 Qcd2 Rc4 Rd7 Rc7 Rde7 Ra7 Rc7 Rb7
N2q2Q1/qb4r1/2n1Qrqn/2Qn3p/B1n2k2/1qN5/QB1N4/1nRR1Kbr b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 Ke7 c4 Ke6 g4 Ke5 a4 d5 g5 b5 a5 h5 c5 f5 g6 f3 g7 h3 c6 d3 c7 d2+ Kf2 d4 a6 d3 a7 f4 Ra2 b3 Nc3 h2 Qe1 d1Q Ra4 b4 Bd2 b2 Ra3 b1N Rb3 Rh6 Nd5 Rf6 Qe2 Nh6 g8Q Bb7 c8Q Bc5+ Be3 d2 Qg2 Nc6 Ra3 b3 Ra4 b2 Ra2 Qa4 Qg8 d1Q Ra1 Qdb3 Nc3 Na3 Qa6 b1N Bb5 Nc4 Kf1 f2 Bc1 Rb8 a8N Qaa3 Kg2 f1N Ba4 Nfe3+ Kf2 f3 Bb2 Nd5+ Kf1 f2 Nf3+ Kf4 e5 Bb6 e6 Ba7 Rg1 h1R e7 Bd4 e8Q Qc5 Ne5 Qa7 Qee6 Bb6 Qc7 Rc8 Qcd6 Rc7 Qc5 Rcf7 Nf3 Rg7 Qcb5 Bd4 Nd2 Be3 Qc5 Bd4 Ke2 Be3 Rc1 Bd4 Kd3 f1Q+ Qe2 Rhg1 Qaa5 R7g6 Rd1 Qg2 Bb5 Rh1 Qa2 Rg7 Qee6 Nba3 Rac1 Qg6+ Ke2 Bg1 Ba4 Nb1 Kf1
Q1RN2r1/Q6K/Q1n1rR2/3q1B1p/4r1r1/Bqr1B1Nb/1bq2b2/kn3B1b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Ke5 g4 b5 a5 d5 c5 h5 a6 b3 a7 b2 f3 e3 Kd3 b4 c6 h3 g5 b3 g6 h2 c7 e2 g7 e1R Bd2 Nf6 g8Q Rh6 Bc1 Ne4 Qg4 Re6 Nd2 b1R Ra2 b2 Be2 Nc3 Bf1 Bg7 Qh4 Re4 Nb3 Nc6 Be3 Rc1 Qde1 b1Q+ Kd2 d3 Qd1 d4 Qe2 Qd5 Nc5 Qbb3 Ra6 Bd7 Qhf2 Rg8 a8Q Rc2+ Ke1 Nb1 c8B Rc3 Nb7 Rg4 Qa2 d2+ Ke2 d1R f4+ Ke4 f5 Ke5 Bd2 d3+ Ke3 Re1+ Ne2 Bh8 Rg1 h1B f6 Qc2 Qc4 Bg7 Bc1 d2+ Qd3 d1Q f7 Qcb3 f8B Qdc2 Qf7 Bf6 Nd8 Bh8 Kf2 Bg7 Be3 Bf6 Qb5 Ke4 Qa4+ Kd3 Rg2 Ree4 Kf3 e5 Ba3 Rh4 Bg5 Rd4+ Kg3 Rc5 Rf2 e4 Ra7 e3 Qa5 Bh3 Qa6+ Rcc4 Rc7 Rhg4+ Kh2 Bg7 Be6 Kd2 Rc8 Rd3 Qe7 Ba1 Qg7 Rdc3 Qga7 Rb4 Rf6 Ra4 Nf4 e2 Bf5 Kd1 Bd6 Kc1 Ba3+ Bb2 Bh6 Nd2 Bg5 Kb1 Bh6 Rd1 Bg5 e1B Ne2 Bf2 Bf4 Re1 Ng3 Re6 Bh6 B3g2 Be3 Be4 Kh3 Ka1 Qc7 Nb1 Qca7 R4g6 Kh4 Bef3+ Bd4 Bg4 Be3 Rae4 Qg7 Rh6 Kg5 Rh7 Kg6 Bh3 Kf7 Rh6 Qh7 Rgg4 Qg7 Rhg6 Kg8 R6g5 Kh7 Rg6 Qf7 Rg8 Qfa7
1N2nr2/BB5b/2n1n1R1/n1Q2pqk/4q1r1/1b2QNb1/Qn1rR1RQ/2K3b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 c4 g5 h4 d5 e4 d3 a4 d4 e5 g3 c5 b3 h5 g2 h6 b4 h7 g4 c6 g3 a5 b2 c7 b3 e6 f3 a6 f2 a7 Nf6 e7 Nc6 Qf3 Rg8 h8R Be6 c8Q Rg4 Kd1 d2 Ne2 g1N Qd3 g2 R1h5 Nf3 Qg6 g1B Ra3 Ng5 Bg2 f1N Nbc3 b1B Qh7 b2 Ra2 Bb3+ Qc2 Rb8 a8Q Ne6 R8h6 Bg7 Nf4 Ne3+ Ke2 d1N Kd2 d3 Rh2 Bf8 Ne4 Bg7 Rg6 Nc4+ Ke1 Bh8 Nc5 N4a5 Be3 d2+ Ke2 Bg7 Na6 Bh6 Qc5 Be4 Bf2 b1Q Qc7 Nb2 Q7d6 Rc8 Nb8 d1R Bf3 Bg5 Ng2 Bf4 Nh4 Bg3 Rg2 Bec2 Qde5 Qd5 Qc7 Qg5 Qaa7 Rdd8 Be3 Bd3+ Kd2 Bf5+ Q7d6 Qe4 Kc1 Rd7 Qdc7 Rd2 Re2 Nd5 Qf4 Ndc7 Bh1 f6 Qf2 Kf7 Qh2 Ne8 Qa8 N8g7 Bf2 Rf8 e8Q+ Kg8 Qee7 Kh8 Qe3 Kh7 Q7c5 Ne8 Bg2 Nd1 Rc2 Nb2 Bf3 Nac4 Qa2 N4a5 Rg7+ Kh6 Rg6+ Kh5 Bg2 Qd4 Bd5 Ncd8 Bb7 Ndc6 Qee5 Qe4 Bd4 Qf3 Qe3 Qe4 Rg2 Rd3 Rce2 Rd2 Rg7 Bh7 Rg6 f5 Qe5 N6g7 Ba7 Ne6 Q5c3 Rd6 Qc5 Rd2 Nf3+
7R/1nr1rrBb/1b6/1Qq1p3/5RKB/Bb2NNbN/2qbq3/k2BQn1q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 a4 Kd5 f4 Kc4 f5 e5 h5 d5 f6 g5 f7 b5 c3 b3 h6 d3+ Kf2 e3+ Kg3 d4 h7 b2 a5 b4 a6 e2 a7 e1B+ Kh2 g3+ Kg2 g4 Qc2 b3 Nf3 Nf6 Nh4 Qc7 Bh6 Na6 Ra3 Nc5 Qd1 Bf5 Ra5 Nh5 Ra6 Re8 a8N Nb7 Ra4+ Bb4 f8B Qc5 Qc1 Re7 Bfg7 Rc8 h8B Bh7 Qf4 Rcc7 Qc1 Rf7 Kg1 g2 Kh2 g1R Be2 g3+ Kh3 g2 Nf3 Bg3 Bd1 d2 Kg4 d3 Ng5 Rfe7 Rh4 Rf1 Nh3 g1B Bf8 Bd4 Bh8g7 Rff7 Bg5 Bg1 Be2 Bd4 Qe1 d1B B5f6 Bc2 Bd1 d2 Nb6+ Kd3 c4 Be3 Bf3 d1Q Nd5 Qe2 Nd2 b1Q Ra8 Bg1 Ne3 Kc3 Bg5 Kb2 Rb8 Qa5 c5 Ka1 c6 b2 Rd8 Qc1 Rd4 b1Q Rf4 Bb3 B5f6 Qh2 Bd1 Qcc2 Nf3 Qac5 Bg5 Bd2 B5f6 Rcd7 c7 Qe2 c8Q Rc7 Qb8 Q5c3 Nf1 Bb6 Ne3 Qc5 Bg5 Bf2 Qe8 Ng3 Qb5 Nf1 Rh6 Bg3 Bh4 Qcd3 Rd6 Qbc2 Rd8 Qh2 Re8 Qde2 Rb8 Qh1 Rd8 Re8 Bd6 Ree7 Rh8 Qc6 Bb4 Q6c5 Ba3
6qk/B1QrRN2/2Kn1rq1/2np2n1/n2q3R/2B3Q1/BB2Q1qb/1br2q1N b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 d5 c4 e5 f4 b5 a4 g5 f5 Kg7 h5 e3+ Kd3 e2 c5 e1Q c6 b3 a5 b4 c7 g3 a6 b2 a7 b3 Na3 b1N Be2 g4 Rh3 g2 Nb5 g3 Bb2 Na6 Bc3 b2 Bf3 e4+ Kc2 e3 Kb3 e2 Ka4 Qf1 Bg4 e1R Qe2 Rh7 h6+ Kh8 f6 d3 f7+ Nf6 Bf5 d2 Rh4 Rc1 Nd6 d1Q+ Kb5 Qd4 Nh3 g1N Nf2 g2 Nh1 Nh3 Kc6 g1Q Ra4 Be7 f8B Ne4 Ra2 Rg7 h7 Qgg2 Ra1 Rb8 a8Q Nac5 Qa3 Nhg5 Ra2 Ba6 c8Q Bd3 Qc7 Rg6 Qb3 Rb7 Ra7 Rf6 Bh6 Qg8 Bg6 Rf7 Nf5 Bd6 Bf8 Bc2 Nh6 Bh2 Bd6 Rf6 Qa3 Nce6 Bc5 Nd6 Bb6 Nc5 Bd3 Ngf7 Bc4 Ng5 Ba2 Bd3 Bd2 Bc2 Qg3 Nc3 Be1 N3a4 Bc3 b1Q Bb2 Rb8 Rb7 Bf5 Ba7 Rd8 Bc3 Rd7 Bb2 Kg7 h8B+ Kh7 Rb3 Qbe4 Re3 Qee8 Re6 Bb1 Re5 Qeg6 Re8 Re6 Be5 Rf6 Re7+ Kh8 Bc3 Qde4 Bb2 Qc4 Bec3 Qd4 Nf7+
BQq1Nn2/R3r1k1/1Nq2Rb1/1pn1Q1Kn/1q4Qn/6n1/b3bb2/1rR2RB1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 d5 g4 h5 e4 f5 a4 Kf7 c4 h3 e5 b3 a5 h4 g5 b2 c5 h2 c6 d3 a6 d4 g6+ Kg7 a7 h3 e6 d2 e7 d3 e8Q Rh7 c7 Na6 Nc3 b1Q Nge2 Nc5 Ng3 Be6 c8Q Ne7 Ra3 Qb4 Qb7 Qc8 Be2 Ba2 Re1 h1N Bb2 h2 Qa1 d1B Qc1 d2 Ba1 Bc2 Qc7 d1N Bc4 Ne3 Bd5 Ng2 Nge4 Ng3 Rf1 h1Q Ra6 Nh5 Qb8 Bcb1 Nf6 Nh4+ Kf2 f3 Ke3 f2 Qd1 Bd3 Qg4 Be2 Bb7 Qhc6 Ncd5 Bd3 Rc1 f1B Nb6 Bfe2 Be5 Be4 Bh2 Bc2 Bg1 f4+ Kf2 f3 Ke3 f2 Rf1 Kh6 g7 Neg6 g8R Re7+ Qe5 Bcd3 Rc1 Bg7 Rf8 Be4 Rf7 Nf8 Qd8 Bc2 Ne8 Bg6 Qd6 Kh7 Qb8 Kg8 Rf6 Kh7 Ra3 Kh8 Rb3 Kg8 Rbb1 f1N+ Kf2 Nfg3 Ke3 Q6d7 Be4 Qdc7 Rcf1 Qc6 Rbc1 Bh6+ Kf2 Bd2 Bf3 Be1+ Ke3 Ng7 Be4 Bf2+ Kf4 N7h5+ Kg5 Qa6 Qb7 Rd8 a8R Rd1 Qbb8 Qac8 Ra7 Re1 Rc3 Rb1 Rcc1 Kh8 Nc7 Kg7 Bh1 Q6e6 Ba8 Qc6 Ne8+
b1qBN1kb/Nn3B1R/K4n1p/1r3Q2/2Q1b3/nQ3qbr/1n1R2R1/4Qrn1 b - - 0 1 illegal: No possible last move
n1b1Q1R1/1b4qB/1n1b1R1p/RKB1r1Nn/N1Qq2r1/5k2/4RB2/3qb1nn b - - 0 1 illegal: No possible last move
4r1Nq/1QBR3N/1qB3Kp/2rb1Q2/N4q1b/2knNq1R/b2rq3/1R1r1n2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 a4 d5+ Ke5 b5 g4 f5 e4+ d3 a5 h6 g5 h3 c3 h2 a6 f3 a7 f2 g6 b3 g7 b4 Be2 f1Q Bf4 d4 Nh3 b2 Qc2 b3 Bc1 f4 Nf2 f3 Be3 Na6 Bd1 d2 Ng4 d3 Bb6 f2 Be2 d1R Bc7 Nb4 Bf3 Ne7 Kf6 d2 g8N Ned5+ Kg6 Ne3 e5 Nd3 e6 Be7 Bc6 Bh4 e7 Be6 e8N Bd5 Nef6 Rc8 a8R Qe2 R8a7 f1Q Nh7 Qf4 Rb7 Nf1 Ne3+ Kc5 c4 Kd4 Nc3 b1Q c5 b2 Ra3 Qa1 Rab3 b1B Na4 Ba2 Rb1 Qb2 Ra7 Qb6 Nb2 Qdf8 Qb3 Re8 Qb5 Kc3 Qa6 Rc1 Qb7 d1Q Ra8 Qef3 Rd8 Qde2 Rd7 Rc2 Rg1 h1R Rg3 Rd2 Rh3 Rc8 Ngf6 Ra8 Bd8 Ra5 Bb5 Ng3 Ba4 Rhd1 c6 Nf2 c7 Kb4 c8Q Rg8+ Rg7 Nf1 Qf5 Rc5 Bc7 Kc3 Bc6 Rh8 Re7 Nd3 Rd7 Qe8+ Rf7 Qee5 Rd7 Re8 Ng8 Qh8 Na4+
2n4B/n2n2b1/B1Bp1bK1/1Q2Nn2/3Bn3/RQ2bN2/Qq1r1k1q/rR1r1b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 c4 f5 h4 g5 a5 b5 a6 f3 Kg3 f2 a7 d3 e5 Kd4 e6 b3 h5 f4+ Kg2 f3+ Kg3 d6 h6 b2 c5 b4 h7 d2 e7 Ke3 e8B b3 c6 Nd7 c7 Bg7 Ra2 Ne7 Bh3 Ba6 c8Q Bf1 Qb8 Nc8 Nc3 b1Q Ra3 b2 Bh5 Qf6 Rb3 Qa2 Rb4 b1N Ra4 Na3 Qb4 Nb5 Nb1 Qfb2 Bg2 Rg8 Kh2 g3+ Kh3 g4+ Kh4 Re8 Bh3 g2 Kg5 g3 Ne2 g1B h8B g2 Kf5 Re5+ Kg6 Rd5 Qa5 Bh2 Nf4 g1B Nd3 Bhe5 Be6 Bef6 Qb3 Ke2 Beg4 d1R Ne5 R5d2 Ra3 Rd4 Kf5 Bh3 Bf4 f1N Ra4 Ng3+ Kg6 Qba1 Bh6 Re1 Nd3 Nf5 Ne5 Bg2 Bc1 Be3 Nd2 Qc2 Ba3 Qab2 Bc5 Rf1 Qb6 Ke1 Qa6 f2 Be2 Rg1 Bd3 f1N Bf3 N1g3 Bc6 Ne4 Bc4 Rd3 Ndf3+ Ke2 Ra1 Rb1 Rc1 Bf1 Bd4 Qd2 Rd1 Rc1 Ra2 Rc2 Rda1 Rc1 Rb1 Rd1 Nh2 Ke1 Qb7 Qf2 Nhf3+ Ke2 Qb6 Qh2 Qa6 Kf2 Qa5 Rb8 a8Q R3d2 Q8a7 Rb6 Q7a6 Nba7 Qb7 Rb4 Ba6 Ra4 Q7b5 Qc3 Rab2 Ra1 Ra2 Qb2 Qaa3 Qc1 Qab2 Qc2 Ra3 Qc1 Q2a2 Qc2 Kf7 Qb2 Kg6
1QB2n1R/1rrrBb2/B1rpn3/q1Qb4/1k2n3/R4q1B/2KnNN1n/R5b1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 e4 Kd6 c4 Kc5 g4 f5 a4 b5 e5 h5 a5 f3 a6 f4 g5 b3 g6 h3 a7 f2 g7 b2 e6 h4 e7 f3 e8Q d3 Qe5+ Kb4 c5 h2 c6 h3 c7 Bc5 Qde2 Rh7 Kd1 d2 Qe1 Ne7 g8B Nf5 Nc3 b1N Qe7 Nd4 Qg5 Ne6 Bc4 f1Q Ra3 f2 Kc2 d1R Ba2 Nd2 Bb2 d6 Qg6 Rd7 Nge2 Rc1+ Kd3 Bb7 c8R Qa5 Rf8 Bd5 Rg1 h1B Qe8 h2 Qe7 Bb6 Ne4 Rcc7 Ng3 Qg2 Qd8 f1N Bc4 Qf3+ Kc2 Bd4 Rg2 Bg1 Qc1 Rc6 Bf7 Rdc7 Be8 Nd7 Rh8 Ndf8 Bd7 Ne4 Be5 Rb8 a8B Rbb7 Bc8 Rd7 Rf2 Bg2 Bf6 h1R Qc7 Rhh7 Be7 Nh2 Qb8 Bh3 Qe3 Bg4 Ra1 Bh5 Nh1 Bf7 Ra3 Rbc7 Rf1 Rh5 Nc1 Qf2+ Qe2 Nf6 Rh7 Be4+ Kd2 Kc5+ Kd1 b4 Qg4 b3 Qf3 b2 Qfb3 b1N Qc3 Ra6 Rh8 Nd2 Ne2 Bg2 Bf3 Rac6 Kc2 Rh3 Bh5 Bd5 Rfa1 Nfe4 Bg4 Rd3 Bh3 Qf3 Nf2 Re3 Qg7 Rb3 Qc3 Rbb7 Qd4+ Kb4 Qda7 Nc3 Ba6 Nce4+ Qc5+
q1q3RK/1Q1N1N1p/2n2k2/Bb1rRnNR/2B4q/1q4q1/1bR1Qr1r/3r3n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 b5 Kg4 f5+ Kg5 d5 a4 h3 c4 f3 e4 f2 g4 d3 a5 d2 e5 h2 a6 b3 a7 b4 e6 b2 c5 b3 c6 d4 c7 f4 Bg2 f1R Kh5 d3 g5 f3 g6 f2 g7 Nh6 g8R Nc6 Ra2 Nf5 Be4 Bg7 Nf3 Bd7 c8N+ Kf6 Qe1 d1R e7 d2 Nc3 b1Q e8R b2 Qe2 Qa1 Bc2 b1Q Ne5 Qb3 Nd6 Qc8 Bd3 Rb8 a8Q Rb5 Qa6 Rd5 Rc2 Rg1 Qe3 f1Q Ndf7 Qg2 Bc4 Qg3 Qe2 Rg2 Qb7 Qaa8 Ba3 Rf2 Bb4 Qba4 Ba5 Qb3 Rg1 h1N Rg2 Qb4 Rh2 Qe7 Rh4 Rh2 Ne4+ Ke6 Ng6 Bb2 Neg5+ Kf6 Nge5 Qb4 Rg7 Rf8 Rg8 Rg1 Re7 d1Q Re8 Qdd3 Re7 Qdb3 Re8 Nd6 Kh6 Rgd1 Rh5 Q4a4 Bd3 Qah4 Bc4 Nb8 Re7 Bb5 Re8 Nc6 Nd7+ Kf5 Nfe5 Rf6+ Kg7 Rf7+ Kh8 Rf8 Nc5 Kf6 Nef7 Nf5 Re5 Rf1 Bc3 Rfd8 Ba5 Rff2 Qa6 Rd1 Qb7 R8d5 Nd7+
2B1kq2/2R3r1/Nr3n2/b5n1/NBK2nR1/N4r1n/2npnQrn/1b1QQQ2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 f5 Kd3 b5 e4 d5 a4 h5 c4 f3 g4 b3 c5 b4 e5 b2 g5 f2 a5 h3 a6 b3 g6 h4 a7 h2 e6 f4 e7 h3 g7 f3 c6 Bf5+ Kd2 d3 Kc3 d4+ Kb4 d2 c7 d3 c8N Nc6+ Kc3 Nd4 Kb4 Ne2 Na3 b1N Kc5 b2 Nb6 Nf4 Kc4 Nc3 Nc2 b1R Ne1 Ne4 Be2 f1N Nd5 f2 Ngf3 Ngf6 g8Q Rh7 Nb6 Rg7 Ra3 Ng5 Rg1 h1N Ne5 h2 Ned7 Nhg3 Nc2 h1N Bg4 Nge2 Nb8 Nh2 Rc3 f1R Na4 Nf2 Na3 Rb6 Na6 N2h3 Qh7 Qb8 Qh4 Rf3 Qf2 Bh7 Qdf1 d1N Bc8 d2 Rg4 Bb1 Bb2 Qd6 Rc1 Rab8 a8Q Qd8 Bc3 Ne3+ Kc5 Nc2 Bb4 R8b7 Kc4 Rd7 Qd1 Rdd3 Qff1 Rg3 Qag2 Rdf3 Qgg1 Rg2 Qgf2 Kf7 Bc3 Ned4 Ba5 Ne1 Rc3 Nec2 e8Q+ Kg8 Qee2 Kf7 Qde1 Bb4 Q2d1 Nde2 Kb3 Qe7 Qc1 Qf8 Qcd1 Ne3 Rc1 Ke8 Rc7 Nc2+ Kc4 Be7 Bc3 Bb4 Bf5 Ba5 Bb4 Rgg3 Be6 Rg2 Bc8
1n2n2N/RNr2Q2/1n1nb1qb/1B4nr/Bp1R4/1nnBr2k/2K1R3/Qr2B3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 c4 Ke6 a4 Kf5 c5 Kg4 e4+ f3 c6 f5 g3 b5 a5 d5 e5 h5 c7 h3 e6 d3 e7 h4 e8B h2 a6 h3 a7 f4 Na3 d4 Qe1 b3 Bb2 f2 Be2+ f3 Kc1 f1N Bd1 b4 Bb5 d2+ Kb1 d3 Qf2 Ne3 Bd7+ Nf5 Be8 Bh6 Be5 b2 Bd6 Rh7 Bd7 Qe8 Be7 Qg6 Bh4 Nf6 Nc4 Ne8 Bb5 Be6 c8R Rc7 Ne2 Nfd6 Bda4 d1N Nf4 Ne3 Re1 h1N Re2 h2 Rd8 Nd5 Na5 Nb6 Nb7 d2+ Bd3 d1N Qf1 Qf5 Ng6 f2 Nh8 Nc3+ Kc2 b1R Qe1 Kh3 g4 f1N g5 Nd2 g6 Nf2 g7 h1R g8Q Qe4 Qf7 Qg6 Qd1 Nfe4 Be1 Nb3 Qc1 Nf5 Rd4 Ng5 Qb2 Nfd6 Ra2 Rf1 Qa1 Rf3 Bb5 Re3 Ra4 Nc6 Ra2 Rd8 a8B Nb8 Ra7 Rdd7 Na5 Rc5 Bac6 Rc7 Ba4 Nge4 Bd7 Rh5 Nb7 Ng5 Bdb5
2q2b1n/r1Q1NR2/k4rB1/5NR1/1Qb2N1B/2QbnNn1/nKb2pb1/4b2n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 Kd7 h4 Kc6 a4 Kb6 c4 g5 Kc2 f5 e5 d3+ Kb2 d4 e6 b3 h5 f3 a5+ Ka6 e7 b5 e8N d2 c5 f4 h6 f2 h7 d3 c6 g3 c7 g4 Ng7 b4 Rh4 g2 Rh1 f3 Nc3 g3 Nb5 Be6 c8N Bc4 Qe1 d1N+ Kb1 b2 Qe7 d2 Ne2 g1B Rh2 g2 Qe3 Ra7 Qe5 Ne3 Qf6+ Nc6 Qh4 d1N Nb6 Nge7 Qg4 Qc8 Nbd4 Ng6 Ngf5 Rg8 Ra2 Nh8 Nf4 Rg6 Nbd5 Rf6 Bd3 f1B Rh5 Nf2 Rg5 Nh1 Nde7 Bf2 Bd2 g1N Be1 Ne2 Bc2 Bg1 Bh4 Neg3 Ra3 Bg2 Bd3 Nf7 h8Q Bf2 Qg7 Be1 Bc2 f2 Nf3 Rh6 Qc3 Nh8 Rb3 Rf6 Ka2 b1B+ Kb2 Kb5 a6 Kb6 Ra3 b3 Be4 Nb4 Ra4 Rb7 a7 Na2 a8Q Bbd3 Qb8 Kb5 Rb4+ Ka6 Qc7 Ra7 Rb7 Bc2 Nd6 B2d3 Bg6 Bc2 Qgd7 B2d3 Ndf5 Bc2 Qdd4 B2d3 Ka3 b2 Qdc5 b1B Q5b4 Bbc2 Kb2 Rd6 Rb5 Rc6 Re5 Rd6 Re6 Rb6 Rf6 Rd6 Rf7 Re6 Ne5 Rf6 Nf3
rr3B2/n5NB/Kn1nrQNb/R1Bb1Np1/2n3nR/q5B1/r3kr1Q/6r1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1R a5 d3 h5 d2 h6 e3 a6 Ke4 h7 e2 a7 Ke3 f5 d4 f6 g3 f7 g2 Nh3 g1R Ra2 d3 Ra1 Bh6 f8B Bb7 c8Q Nc6 Ra5 Qe7 Qc7 Nf6 Bg2 Ne8 Be4 Nd6 Ra3 Ref1 Bd5 e1R Qc2 Rf2 Qa5 Ke2 Bg8 Qe3 Qc3 d1N Qf6 Nc3 Qc7 d2 Ra5 d1N Nd2 Qd3 Rh2 Ne3 Ba3 Ng4 Nf1 Rgg2 Ne3 Nd5+ Qc3 Rb8 a8N Na7 Nf5 Nb6 Rh1 Qg3 Rh2 Bf3 Qf6 Reg1 Rh1 Re8 Qb8 Re6 Nc7 Rh2 Ne8 Bd5+ Kb2 b3 Bc5 Qe3 Ka3 b2+ Kb4 b1N Neg7 Nd2 Qc7 N2c4 Nf4+ Kd2 Ng6 Ke2 Qb8 Rhg2 Rh4 Rh2 Bd4 Qd3 Kc5 b4 Be5 b3 Bg3 b2 Qc7 Nf7 Qf4 b1R Qb8 Nac8 Qd6 Ra1 Kb5 Na7+ Ka6 Qa3 Qf4 Nfd6 Q4e5+ Kd1 Qf4 Rfa2 Q4e5 Rhf2 Qb2 Rff1 Qh2 Rff2 Ra4 Rb1 Ra5 Ke2 Be7 Nf7 Bc5 Nfd6 Bf7 Ra8 Bg8 Nge5 h8B Rbb2 Ne8 Na4 Bg7 Rbb8 Bh7 Ng4 Bf8 Nab6 Neg7
br5r/4RKQk/b3pb2/1nNb1brB/3r1b2/Q1R1n2N/1QQ2B2/3Nr1q1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 a4 b5 g4 h5 f4 d5 f5+ Kh7 g5 h3 f6 d3+ Ke3 b3 Kd4 h4 Ke5 d2 a5 b2 c5 e6 a6 e3 c6 d4 f7 h2 c7 h3 a7 d3 Qh5+ Nh6 Qg4 d1R Qg2 b4 Nc3 b1R Qb2 d2 Qa2 b3 Na4 b2 Nc5 e2 Qc4 e1B Qe2 Nf5 Ra3 Bh6 f8Q Na6 Rc3 Rb8 a8Q Ne3 Qeg2 Bh4 Be2 Qe8 Kf6 Re1 Bh5 d1R Bd2 Bb7 c8Q Nc7 Qa3 Nb5 Qcc6 Qc8 Kf7 Ba6 Qc7 Ra1 Bc1 b1B Qgb2 Rd4 Qc6 Nd1 Be3 Bf5 Bf2 Ne3 Qe4 Qd8 Qec2 Qb6 Kf6 Bg3 Kf7 Bg7 g6+ Kh6 Nf3 Bf4 Ng5 Ra2 Rg1 h1B Rg3 h2 Nh3 Ba8 Rg5 Bg4 Rd5 h1B Rd7 Bf5 Re7 Rf1 Qc8 Bge5 g7 Bhd5 g8N+ Kh7 Nh6 Re1 Ng4 Bf6 Qf8 Raa1 Bh4 Rg1 Ngf2 Rae1 Nd1 Rg5 Bf2 Qc7 Nd7 Qc4 Nc5 Qf1 Ng1 Qg2 Nh3 Qg1 Qg7+
R1NNk1r1/1b4rQ/1K2R3/N1n1q1B1/1R1bN2r/3n2q1/r1np1qb1/1B1Q3n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 c4 f5 e4 h5 g4 d5 a4 b3 g5 d3 c5 b4 a5 f3 Ke3 f2 Kd4 f4 a6 f3 a7 d2 e5 h3 g6 h4 c6 h2 c7 b2 g7 h3 e6 b3 e7 Nf6 Kc5 d4 g8Q d3 Na3 b1R Qg2 b2 Ra2 Bg7 Qg4 Nd5 Nb5 Na6+ Kc6 Nc5 Qe4 Ne3 Qe6 Bb7+ Kb6 Qd4 c8N Rg8 Ra6 Qe5 Ra4 Nc2 Qe1 d1N Bg5 d2 Bd3 f1B Qh6 f2 Ne2 Bfg2 Rb4 f1Q Nf4 Qf2 Na3 Qg3 Qf1 Nf2 Nc4 Rd1 Bh7 b1Q Na5 Nfd3 Ne6 Qbb2 Be4 Qbd4 Nd8 Qdf2 Qh7 Bf6 Rg1 h1R Bf5 Rc1 Qd1 h2 Re1 Rg1 Be4 h1N Re2 Ra1 Re3 Rb8 a8R Ra2 Re1 Qef4 Bf5 Bd4 Re6 Qe5 Be4 Rg7 Bf5 Re1 Be4 Re3 Bf5 Re4 Bg6+ Kd7 e8N Rg4 Ned6 Rh4 Ne7 Rc8 Ne4 Rb8 Bf5 Ke8 Nc8+ Kf8 Nc3 Na3 Ne7 Ne1 Bb1 Nac2 Ne4 Ned3 Ndc6 Re8 Nc8 Kf7 Rg6 Rg8 Nd8+ Ke8 Re6+
bn2r1Qb/2q1R2r/1nNbNn2/B7/2k1NR2/b1pqQ3/2B1B2n/r2q2BK b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 Kg2 Kc6 d4 Kd5 h4 f5 a4 c5 h5 g5 e3 b5 h6 f3+ Kh2 c3 a5 f4 a6 b3 a7 f2 h7 b4 Ba6 f1Q Nh3 c2 Nd2 c4 Ng1 b2 Ra4 b1Q Bb2 c1B Nb3 f3 Bb5 f2 Ne2 Bd6+ Ng3 Qbd3 Nc5 b3 Qd2 Nf6 Bc3 b2 Ne6 b1N Ba5 Qd1 Re1 f1N+ Kh1 c3 Ne4 g3 Rb4 Re8 h8B g4 Ba4 Bb2 Bc2 Qc7 Qe2 Nbd2 Ra4 Kc6 d5+ Kb5 Qg2 Bb7 Qf3 Bc5 d6 Nc4 d7 Nb6 d8N Bd6 Nc6 Bba3 Bg7 Nh2 Qe2 Nh7 Bd4 Nf6 Qg2 Re7 Qh3 Rf7 Qh8 Rh7 Qg8 N8d7 Rc4 Re8 a8B Nb8 Nf2 Q1d2 e4 Qd1 e5 g2+ Kg1 Bc8 Bc5 Ba6 Rf4 Bb7 Ne4 Kc4 Ned4+ Qf7 e6 Qc7 e7+ Nbd5 Ne6 Nb6 Kf2 g1B+ Kg2 Bd4 Kh1 B4e5 Bg1 g3 Nb4 Bc6 Bb7 Bd5 Bc8 Ba8 Nc6 Nfg4 Re2 Bh8 Bd7 Nf6 Re3 Rd8 e8Q Rc8 Qe7 Rd8 Bc8 Re8 Ba6+ Kd5 N4g5 Bb2 Qeg7 Q1d2 Bf2 Qd4 Be2 Bba3 Ned8+ Kc5 Qg6 Q4d3 Re7+ Kb5 Ne4 g2+ Kg1 Nfd5 Bc5 Kc4 Ne6 Nf6 Qg3 Qc1+ Kf2 g1R Qf3 Rd1 Kg2 Qd2 Bg1 Ra1 Qe3 Qd1 Kh1
6RN/bbK2Q2/5rr1/2Q1Br1n/1nNpq1N1/2qBq2n/q1R5/2kN1bbB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 Kg3 f2 a6 f4+ Kg2 f3+ Kg3 b3 h7 Kb4 a7 d3 e5 d2 e6 d4 c5 b2 c6 Qe8 e7 Nf6 c7 Nc6 Qe1 Kb3 Qe4 d1Q Ra2 b4 Bd2 Bb7 c8B Nh5+ Kh2 g3+ Kh3 g2 Kg4 Qe1 Kf5 g4 Ke6 g3 Kd6 Rg8 h8N Rg6+ Qe6+ Kc2 Bb5 f1B Nc3 f2 Be3 b3 Nd1 Qc3 Bf4 Nb4 Nf3 g1B Be5 g2 Nd2 Kc1 Bd3 b1Q Nc4 b2 Kc7 Qa1 Qf7 b1Q Re2 Qaa2 Bg4 Rd8 a8Q Rdd6 Qa5 Rdf6 Bf3 Qbb3 Rh3 Qa8 e8N Bc5 Bc6 Ba7 Qc5 Rf5 Nf6 Qe8 Bd6 Qe4 Rg3 Qba3 Ng4 Qa3b3 Bc2 Qce3 Bd5 Qbc3 Bd3 Rff6 Re1 Qe5 Rh3 Rh6 Rg3 Be2 Kd8 f1R Bf3 Q5e4 Nh2 Bf2 Be5 g1N Rg8 Nh3 Ng4 Rhg6 Bh1 Bg1 Kc7 R1f3 Rf1 R3f5 Rf2 Bf1 Rc2+
1Nbnrq1b/B1q2r2/qBNR4/6b1/1p5n/1r2n3/BR1BnQNr/K5Qk b - - 0 1 illegal: No possible last move
B2rn1q1/4b1nb/K1N1B1N1/B1q1R1r1/bp1Q2b1/1rk2q2/1nn2N2/Q3N1R1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 h5 e4 d5 c4 f5 a4 h3 g4 f3 g5 h2 a5 f2 g6 d3 g7 Kd4 a6 d2 c5 b3 e5 h4 c6 b2 a7 h3 e6 f4 e7 f3 e8B Na6 c7 Rh5 Kb6 Nh6 g8Q Bg4 Bg6 Rg5 Be4 Nf5 Bed3 Ng7 Qh8 Be7 Bg6 Qg8 c8N Nc7 Na3 b1B Nc4 Kc3 Ra5 d4 Nb2 d3 Qa4 d1N Qf4 d2 Bc4 f1Q Nd3 f2 Be6 Ne8 Be4 Nb2 Re5 d1B Nf3 Ba4 Rg1 h1Q Nfe1 h2 Ka5 b5 Ka6 Rb8 a8N Qf3 Na7 h1R Nc7 Rh3 Ba8 Rd8 Nc6 b4 Be3 Qd5 Bb6 Qc5 Ba5 Qe2 Qe3 f1N Qe4 Qf3 Nf2 Ne3 Nd5+ Kb3 Qf4 Bh7 Qd4 Nc2 Nf4+ Nc4 Qd6 Kc3 Ng6 Nb2 Qd1 Rg3 Qa1 Qg2 Nf4 Nh5 Nd1+ Kd2 Re4 Rb3 Nf2 Qf3 Qe5 Nhg7 Ng6 Qh1 Qd6+ Kc3 Re5 Qf3 Qd4+
3K2Rn/q1nNB3/rkr5/3pbNn1/6Q1/B3nbQr/2q1R1B1/q1bBr1N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc6 c4 g5 a4 b5 h5 f5 a5 d3 a6 f3 Ke3 b3 Kd4 b2 Ke5 b4 h6 f2 h7 f4 a7 f3 c5 d2 Qc2 d1R Bf4 g3 Na3 b1R Rh3 b3 Ne2 g4 Nc3 g2 Bh2 g1B Ra2 b2 Nc4 g3 Qd3 g2 Rg3 Nh6 Rg8 Bg4 Ne2 Qd7 Kf6 Bd6 e5 Rdc1 e6 Nf7 e7 Na6 e8B Nc7 Ne3 Rc4 Qa3 Re1 Nf5 b1Q Qe3 Kb5 c6 Qc2 Be5 Rc5 Bb2 Kb6 Ba3 Bgh2 Qc3 g1N Bg2 Nh3 Ng1 f1N Qe5 f2 Qg3 Nhg5 Rb2+ Nb5 c7 Ne3 c8Q f1Q Ra2 Nc7 Rb2+ Qb3 Re2 Qda4 Bd7 Bf4 Ke7 Bf3 Bc6 Qa5 Ba4 Rc6 Qd7 Qb2 Bd1 Qc2 Qe6 Qf2 Qe4 Be5 Qeg4 Bb2 Kd7 Bc1 Be7 Qa1 Ba3 Rd8+ Ke7 Rdd6 a8N+ Ka7 Nb6 Rf6 Q3h4 Be5 Nd7 Rh6 Qhg3 Rh3 Rg6 Ra8 h8B Kb7 Rg7 Raa6 Rg8 Ka7 Bf6 Nh8 Nb8 Kb6 Kd8 Nc4 Bfe7 Qc5 Re8 Ne3 Rf8 Kb7 Re8 Qa7 Rg8 Kb6 Nd7+
1R5R/2BnQ3/q1bqQB1q/rRpnN3/2n1RbK1/k2b4/2r3N1/rBq3n1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 a4 Kc5 g4 f5 e4 b5 a5 h5 e5 b3 d4+ Kb4 a6 c5 a7 b2 g5 c3 g6 c2 d5 h3 d6 h4 g7 h2 d7 h3 e6 Bb7+ Qd5 Ne7 g8R Bh6 Ra5 Bc6 Nc3 b1R Rg3 Ra1 Bb2 c1N Nd1 Ne2 Kf2 f3 Ra6 f4 Qg5 Nd5 Ke1 f2+ Kd2 f3 Qe3 Bf4 Bg2 f1Q e7 f2 Nf3 Ng1 e8Q Qb6 d8B Nd7 Qe6 Qb8 Qe5 Qd6 Qe6 Ra5 Bc3+ Ka3 Bc7 b4 Bf6+ b3 Rb6 Qa6 Ne5 f1B Rb5 Bd3 Rg4 b2 Be4 b1N+ Ke1 Rhf8 Kf2 Nd2 Qe1 Rfb8 Ne3 Nc4 Ng2 Rg8 Rg3 Rgd8 Re3 Rdb8 Bg6 Rb6 Re4 Rb7 Rb1 Rb2+ Qe2 Rc2 Rb5 Nf3 Rhb1 h1Q Rb8 h2 R1b5 Qc1 Rh8 Rg8 a8R h1Q Rab8 Qh6 Bf5 Ng1 Bg6 Be3+ Kg3 Bf4+ Kg4 Re8 Qe1 Rf8 Bg7 Rf5 Qh4 Rh5 Qhe7 Rh2 Bf5 Ra2 Bf6 Ra1 Nh4 Rd2 Ng2 Rc2 Rhe8 Rc3 Re3 Bf1 Bb1 Bd3 Re4 Rc2 Rh8
NN1RKb1q/1n2Qn1r/2nR2b1/pqkr4/N5B1/Rr1n1q1Q/q5R1/4B1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 h5 Kf5 a5 e4 h3 g4 h4 b4 h2 c4 h3 b5 f3 e5+ Kc5 g5 d5+ e6 f2 g6 d3 g7 d2 b6 d4 b7 a3 Nc3 a2 Qa4 d1R Bg5 d3 Nb1 d2 Ne2 Nc6 b8Q Rh7 Ng1 Qd5+ Qe5 Nh6+ Kf6 Rb8 g8R Rb3 e7 Bf5 e8R Bg6 Be2 f1N Nc3 Ne3 Bg4 Nef5 Nf3 Nd6 Nd4 Nb7 Qe1 Qg2 Rd8 Qd5 Rg1 h1Q Bh4 h2 Rd6 Qhg2 Qe4 h1Q Be1 Qf3+ Qf5 Qh5 Rg2 Qh1 Ndb5 Qh5 Nc7 Qhh3 Na8 Qh5 Rc1 a1B Rc2 Qh2 Ra2 Bb2 Ra3 Qhe5+ Kg5 Qh8 Qe5 f5 Qe7 Rb6 Qc2 Rb3 Qd3 Qf7 Qf1 f4 Qh1 Qe6 Qh3 Qee2 Nb5 Bd4 Nc3 Bg1 Na4+ Kb4 c5 Kc4 Rg7 Nf7+ Kf6 Kb4 Rd8 Qb5 Rd6 Qfe2 Rd8 f3 Rd6 f2 Rd8 Nb8 c6+ Kc4 c7 Nc6 c8N f1Q+ Rf2 Qg2 Na7 Qef3+ Ke6 Qh2 Kd7 Kd5 Ke8+ Kc4 Rd6 Qhg2 N4b6+ Kc5 Rf1 Qge2 Rg8 Qec4 Rf2 Qc2 Re2 Qa2 Rg2 Ra1 Qe4 d1N Qe7 Nb2 Na4+ Kc4 Bd7 Rd1 Bf5 Rd5 Bg4 Ncd8+ Nc6 Nd3 Qh1 Qc5 Nb8 Nc6 Qh3 Qb5 Rg7 Be4 Rg5 Bg6 Re5 Kd4 Ree6 Kc4 Rd8 Kd4 Red6 Kc4 N4b6+ Kc5 Na4+
r2QR1bb/2nB1q1p/2qB3K/1r5n/1b4rR/Qk3N1R/1N2R1r1/1Q1q2nn b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 g4 Kd5 a4 Kc4 g5 e5 g6 b5 a5 d5 f5 b3 g7 d3+ Ke3 h3 f6 d4+ Kd2 b2 f7 h2 c3 e3+ Ke1 e2 Kf2 e1N Kg3 b4 a6 e4 Kf4 b3 a7 e3 Bg2 d2 Qg4 d1Q Qh3 d3 Qd7 e2 Qh3 d2 Nf3 Qd7 Kg5 Qc6 Ra4+ Bb4 f8R Be6 Re8 Nf6 g8R Nh5 Qf5 Na6 Bh3 Nc7 Kh6 Bd5+ Rg6 Rg8 Rge6 Rg2 Qg6 Qc2 R6e7 d1Q Bd7 Bf7 Bf4 Qf5 Bd6 Bg8 Ra3 Qf7 Nbd2+ Kd5 Re4 b1R Nc4 b2 Ra2 Ra1 Rh4 b1R Rc2 Ra4 Nb2 Bc5 Rh3 Rag4 Rh4 Bd4 Rd2 Ra1 Qb1 Ra5 Rc2 Bh8 Rh3 Rb8 a8Q Rab5 Qa3 Ra8 Rh4 Nd3 Rd2 e1B Rc2 Ne5 c4+ Ke4 c5 Kd5 Re2 Bb4 Rhe1 h1N Re3 Nd3 R1e2 Ndf4 Rc3 Nh3 Rb3 Qb7 c6 Ng1 Rc3 Na6 c7 Qc6 c8Q Nc7 Nd2 Kd4 Qd8 Kd5 Rch3 Kd4 Nd3 Kd5 Nf3 Kc4 Qa5 Kc3 Nb2 Kb3 Qa3+
2N1KN1N/2Bpb3/4NqR1/q1rr2qb/4n2n/nQ5Q/1n3BB1/1b1Rrqk1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 e4 Kc5 c4 g5 h4 b5 h5 f5 e5 d3 a5 Kd4 a6 f3 Kg3 f2 c5 f4+ Kh2 b3 c6 g3+ Kh3 g2 Kg4 b2 Kf5 b4 Kg6 b3 Kf7 d2 c7 Ke3 a7 g4 e6 f3 h6 g3 h7 Nf6 e7 Ba6 c8Q Qa5 e8N Be2 Qb7 Ne4 Nc3 b1N Nd6 b2 Qdb3 Na3 Nh3 g1R Ng5 b1B Bg2 f1Q Rh6 Kf2 Nc8 d1N Bf4 Nc6 Ke8 Ne7 Nb5 Nb2 Nc7 Ng6 Nce6 Be7+ Nf8 Nh4 Bc7 Rh1 Q7d5 Kg1 Qdd3 f2 Nf7 Bh5 Rg6 Rb8 a8N Rb5 Qf3 Rc5 Qfe3 Rg8 h8B Qfa6 Qec3 f1Q Bhe5 Qaf6 Nh8 Rd5 Bh3 g2 Bg3 Bd3 Rd1 Bb1 Nab6 Rc5 Nd5 Rg7 Nf4 Rd5 Nf7 Rg8 Ne6 Rc5 Rh6 Rgg5 Rg6 Rgf5 Nh8 Rfd5 Bge5 Kf2 Bed6 g1Q Bh2 Qgg2 Bhg3+ Kg1 Qf3 Qgd2 Bg2 Qdf4 Qg4 Q4g5 Qh3 Rh2 Bh1 Re2 Bg2 Re1 Bf2+
r4N1Q/bp1N1bQ1/1q2rNq1/1kB3bN/2n1R2B/qRrB2K1/1rq3n1/n7 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 d5 h4 Kd7 e4 Kc6 c4 f5 h5 g3+ Kf3 d3 c5 d4 e5 d2 h6 d3 h7 b3 e6 g4+ Kg2 b2 a5 Qb6 a6 Nh6 a7 Nd7 e7 Ne5 e8N Kb5 c6 Be7 c7 Nc4 Qe2 d1Q Ra6 d2 Qe4 Be6 c8N Bg5 Rh2 f3+ Kh1 f4 Qd4 f2 Kg2 f3+ Kh1 Qb3 Rh4 d1Q Bd3 f1R Nd2 b1R Ra3 g2+ Kh2 f2 Nh3 g1B+ Kg3 Qdc2 Ne7 Re1 Ne4 Bf7 Qg7 Rb2 N8f6 Rhc8 Nc5 Re6 h8B Rcc6 Bd2 f1N+ Kg2 g3 Ncd7 Nf5 Ng6 Rc7 Re4 Nd4 Nhf4 Ne3+ Kh3 g2 Bb4 Qa4 Ngf8 Nb3 Kg3 Na1 Rb3 Qa3 N4h5 Bf2+ Kh2 g1Q+ Kh3 Rac8 a8Q Ng2 Qb8 Bc5 Kg3 Rcc6 Qe5 Ra8 N6h7 Be3 Qgf6 Nf4+ Kh4 Qg6 Qc3 Qc7 Qfd4 Ba7 Bf6 Qb6 Bd8 Bc1 Qh8 Ng2+ Kh3 Rc5 Bh4 Bg5 Kg3 Rc7 Qcg7 Rc5 Bf1 Rd5 Nh7f6 Rd3+ Re3 Rc3 Bd3 Qaa6 Re4 Qa3 Bc5+
2Rnb3/r6r/qnrN1Nr1/QQ1b4/1NR5/1r1Q1B2/n1n2p1B/1Nr1bk1K b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 g4 Ke6 Kg2 Kd5 a4 Ke4 c4 d5 a5 f5 c5 h5 c6 b5 a6 d3 e3 d4 c7 f3+ Kh2 h3 a7 h4 g5 b3 g6 f2 g7 d2 Bc4 f1R Bf7 Kd3 e4 f4 e5 b4 e6 b2 e7 f3 e8N b3 Ra6 f2 Nc3 b1N Ra3 b2 Rb3 Rh7 Nf6 Nd7 Nce2+ Nc3 Ng4 b1R Rb4 Nb6 Nf3 Rb3 Ng3 Ne7 g8Q Na2 Be8 Bd7 c8Q Nc6 Ba3 Qf6 Qf7 Nd8 Nh5 Rg1 Qa1 Ke2 Qd5 d1N Qa6+ d3 Ne3 Rg6 Nf5 Ne3 Qdb5 Nc2 Rc4 d2 Rc1 d1R Nd6 Kf1 Kh1 h2 Qd4 Rc8 a8N Rc6 Qaa5 Be7 Bf7 Be8 Bd5 Bf8 Bb2 Ra7 Nc7 Bh6 Qdc3 Bd2 Na6 Be1 Nb4 Qe6 Ba3 Qc8 Nf6 Qa6 Ra1 Rc1 Nd2+ Ke2 Nb1 Kf1 Qg3 Ke2 Kg2 h1B+ Kh2 h3 Bf3+ Kf1 Bb2 Bg2 Be5 Nc3 Ra4 Na2 Ra3 Rb2 Rac3 Rb3 Bh5 Bd5 Bf3 Rcc7 Kh1 h2 Nd3 Rh7 Rc8 Rhc7 Rc4 Rc6 Nb4 Bdf7 Bd5 Ke2 Kg2 h1R Bf4 Rh7 Be4 Rhg7 Kh1 Kf1 Qe3 Be6 Bf3 Bd5 Bh2 Rh7 Qd3+
3nB3/2R1b2B/r7/knr3Bp/q1bR2r1/r3rB1r/N1Q1Q2b/1b1NRKn1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 h5 g4 e5 a4 d5 c4 Kd7 a5 Kc7 c5 b5 g5 h3 a6 b3 c6 Kb6 g6 e3 c7 e4 f5 d3 g7 b2 a7 d4 f6 h2 f7 d2+ Ke2 b4 Bg2 d3+ Kf1 e2+ Kf2 e1R Qb3 d1R Qc4 b3 Bf3 d2 Kg2 e3 Nc3 b1R Bg4 e2 Nb5 b2 Qd3 Rh6 Ra2 Be7 f8Q Qd7 Ra3 Nc6 Nh3 Ba6 c8B Nd8 Qd5 Nf6 g8R Ne8 Qa2 Nd6 Rg1 h1R Nf2 Rh3 Nc3 Qa4 Rf1 Ka5 Qf5+ Nb5 Rg7 Rc6 Rb3 Ra1 Qc2 b1B Rb4 Rc5 Qe6 Ra3 Bd7 Re5 Bf5 Rc5 Bb2 Rc1 Be8 d1N Na2 Ndc3 Bh7 Rcd1 Kg1 Rd4 Nd1 Rg4+ Kf2 Bb7 Rf7 Bd5 Bc1 Bc4 Qe5 Rac8 a8B R8c6 Bd2 Ra6 Rh1 Nd4 Rf1 Nf3 Bg5 Ng1 Bf3 Nb5 Qeb2 Bb3 Rd4 Bc4 Ndc3 Rd1 Re1 Rd3 Nd1 Re3 Rg7 Rge4 Rf1 e1B+ Kg2 Bb4 Re1 Rg4+ Kf2 Bd6 Rc7 Bh2 Qe2 Rd5 Qc1 Be7 Qcc2 Rc5 Kf1
1q1qR3/1Nn2K1n/q2QR2B/1NB4n/b2q4/1q1Bb1r1/Q3n1p1/1B1qr1Rk b - - 0 1 illegal: No possible last move
br3R1K/1k2N1N1/B1bb4/nb2bn1B/2qq1R2/B3br1p/3Q4/1BRn1Qn1 b - - 0 1 illegal: No possible last move
qB1r2bN/N1b1r2r/BbBQ4/1N1n4/R2bN1np/4Rk2/1rbQ4/5Kbq b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 f4 Kf7 g4 Kf6 d4 h5 a4 b5 f5 c5 d5 Ke5 g5 h3 g6 e3 d6 Kf4 a5 e5 a6 c3 a7 c4 f6 c2 d7 b3 g7 b2 f7 e4 Bd2 c1B Qb3 h2 Nf3 b4 Qd1 h4 Bg2 c3 Qb3 c2 Qd3 b3 Na3 b1B Ke2 b2 Rd1 h1Q Rg1 Bc5 f8Q+ Nf6 g8B Bb6 Qe7 Na6 Be1 Ng4 Qb3 Nc7 Qd3 Nd5 Qb3 Rh7 Qc3 Qe8 d8N Be6 Nf7 Rd8 a8N Qc6 Nc7 Qa8 Qc4 Bd2 Qd3 c1B Bf2 Bc2 Nh8 b1R Nab5 Bc3 Re1 Bcd4 Ng5 Rb2 Na7 Bd2 Ra4 Bda5 Ncb5 Bc7 Qc5 Bab6 Bg1 Kg3 Bf7 Kf4 Be8 Bg8 Bc6 Kg3 Bf1 Kf4 Rea1 Kg3 Qb4 Kf4 Ke1 e2 Qdd2+ Kg3 Nh3 Kf3 Bh2 Bg1 Nf2 Bd4 Qh6 Bcb6 Bb8 Bc7 Qhd6 Bcb6 Kd2 e1R Rd1 Re3 Re1 Re2+ Kc1 e3 Ne4 Rh2 Bd3 e2 Kd2 Rh3 Nbc3 Rh2 Ba6 Rf2 Ncb5 Rf1 Rea1 Re1 R1a3+ Bb3+ Kd3 Bc7 Qd2 Bdb6 Nec3 Bc2+ Kc4 Rf1 Rb3 e1B Rba3 Bef2 Rb3 Bd1 Kd3 Re1 Rba3 Ree7 Ne4 Kg2 Rc3 Bc2+ Ke2 Bfe3 Ke1+ Kf3 Kf1 Be6 Rca3 Bg8 Ra1 Bef2 Re1 Bfd4 Re3+
1nN1NB2/1bqNK1QN/3r4/r2Q1b2/3r1pb1/1rQ5/Br1Rkb1R/n2n3n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 b5 a4 f5+ Kf3 Ke5 c4 d5 g4 h5 e4 d3 a5 Kd4 c5 h3 e5 h2 g5 h4 e6 d2 g6 h3 e7 b3 e8N b2 g7 b4 a6 b3 a7 Rh4 c6 Nf6 g8Q Nfd7 c7 Bc5 Qe2 d1B Nc3 b1R Nf6 b2 Kf2 f3 Kg3 f2 Qee8 Bg4 Be2 f1R Bc4 Rd1 Ba2 Kd3 Kf4 Bf2 Kg5 d4 Nf3 Nc5 Qg7 Nb3 Ne4 Ke2 Qc6 d3 Ne5 d2 Nd6 f4 Kg6 Bcf5+ Kf7 Rh6 c8N Qc7+ Ned7 Rg6 Nde8 Rh6 Nd5 Rd6 Ndf6 Rd4 Qc3 Rd6 Rg1 h1B Nh7 h2 Rg3 Bb7 Rd3 h1N Ke7 Re1 Rh3 d1N Rh2 Rg1 Be3 Rg3 Bc5 Rgd3 Bb4 R3d4 Ba3 Rc1 Bb4 Rc2 Rc1 b1R Ba3 Ne3 Rd1 Na1 Rd3 Nd1 Bc5 Rb5 Ba3 Rcb2 Bb4 Na6 Bc5 Rb8 a8Q Ra5 Ba3 Bbf3 Bc5 R8b3 Qd5 Nb8 Kf7 Rg6 Bf8 Rd6 Ke7 B3e4 Qdg8 Bc6 Qd5 Bb7 Rd2+
5B1q/b2Nb3/4knNR/B1n1rr2/n1Rp2b1/1BQb1Qrr/K1R3B1/2r3n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d3 c4 Ke7 h4 f5 e4 b5 a4 d5 h5 g5 a5 g3 e5 g4 c5 f3 a6 f2 a7 b3 Kc3 f4 Kb2 b4 c6 g2 c7 f3 h6 d2 h7 g3 e6 Nd7 Nc3 Ngf6 Bb5 f1B Nge2 g1B Ba4 f2 Rh4 g2 Qe1 d1R Rh3 Rd3 Ra2 Rg3 Nf4 Bd3 Ne4 f1R Bd2 Rb8 a8Q Ba7 Rh1 g1N Nc5 d4 Ng6+ Kd6 e7 Rb5 e8B Be7 Ka1 Rf2 Rc2 b2+ Ka2 b1R Bf7 Rc1 Bd5 Qe8 Bg2 b3+ Kb2 Qf8 Ba5 Rff3 Ka3 b2 Ka2 b1N Bb3 Re3 Qf3 Nc3+ Ka3 Na4 Ka2 Qd8 Qc3 Re4 Ne6 Rf4 Nef8 Re5 Rh2 Ne4 Rh4 Ndf6 Rh1 Be6 c8R Bg4 Nd7 Rff5 Rc4 Nec5 Rh4 Ke6 Rh3 Rf8 h8B Qe8 Bg7 Rh8 Rh2 Rh6 Rh5 Qh8 Bf8 Rh7 Rg5 Rh2 Rh5 Rhh3 Rh6
2R4R/2Qq1b1q/1r1q1bb1/qkBQ3p/1Q2Q3/1B1n1K1b/b2b1n1N/1rN4N b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 e5 a4 b5 c4 d5 f4 Kd7 g4 Kc6 a5 h3 f5 h2 f6 b3 g5 b4 c5 d3+ Ke3 d4+ Kf2 d2 a6 b2 g6 d3 g7 b3 f7 e3+ Kg3 e2 a7 e1Q+ Kg2 e4 Na3 b1B Be2 e3 Bg4 b2 Nf3 e2 Bf5 Qd7 Ra2 Nh6 g8N Ng4 Qb3 d1B Ra1 d2 Be6 Na6 Nb5 Nb4 Nh6 Rb8 Nf5 Nd3 Ng3 Ngf2 Nc3 Be7 f8Q Bf6 Na2 Rb6 Qd5+ Kb5 a8Q Bb3 Qfd6 d1Q Be3 h6 Nc1 B1a2 Qe7 b1B c6+ Nc5 c7 Qa5 Qe4 e1B Qad5 Bd2 Bf7 Qd6 Bd4 Be6 c8Q h5 Qcc7 Rhb8 Rg1 Qd7 Nh1 Bh3+ Kg3 Qc2 Be3 Qd3 Kf4 R8b7 Rg8 Qc2 Rc8 Qd1 Ng3 h1Q Nh2 Qhg1 Nh1 Qg7 Rh8 Bd3 Rb1 Qh7 Rb2 Rb8 Rc2 Bbc4 Q4e6 Bg6 Qee4 Qe2 Qed6 Qd3 Kf3 Qd4 Qdf4 Qe5 Rc3 Qed6 Qg4 Ka6 Bg8 Ncd3 Bc5 Rb1 Qh4 Bcb3 Qb4 Rb6 Qhe4 Bc4 Qdf5 Bcf7 Rc2 Be8 Bb3 Bef7 Qfd5 Ng4 Bd4 Be1 Qb8 Ngf2 Rcc8 Bc3 Bc5 Bd2 Qbd4 Kb5 Qc7 Qa8 Qc3 Qa5 Qcb4+
N1B3R1/k3Kbr1/3Q2N1/rn3pnR/q1r1brb1/r2qrQB1/7b/1N1R3R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 d5 g4 Kd7 e4 Kc7 a4 Kb7 c4 f5 a5 h5 g5 h3 e5 h2 a6+ Ka7 e6 d3 e7 h4 e8N d2 g6 b3 c5 b2 g7 b4 c6 h3 c7 d4 Bb5 b3 Ra2 d3 Nd6 Rh4 Ra4 Be6 c8Q Nc6 Bc4 Nh6 g8R Bf7 Rg4 Nd4+ Kf2 f3 Kg3 f2 Kf4 f1R+ Ke5 Nb5 Ra1 Rf4 Qf1 d1Q Nf3 d2 Ne8 Qd3 Kf6 Bd6 Na3 b1R Qe1 b2 Rg5 Qa4 Be6 d1B Ne5 Bg4 Qec3 Rc4 Bf4 Rg1 Bg3 b1R Rh5 Rb3 Nb1 Ra3 Qc6 Re1 Qf3 Re3 Rd1 h1R Nc7 h2 Ng6 Rg1 Qb4 h1B Bc8 Bf4 Qd6 Bg2 Qe2 Be4 Ke7 Be5 Qf3 Bf4 Be1 Bh2 Bg3 Rf1 Qe2 Rf4 Qf3 Rh3 Bb7 Rg8 Na8 Rg7 Bc8 Ng8+ Kf8 Nf6 Ke7 Nh7 Ra2 Bg1 Rh2 Ng5 Rh1 Bh2 Qd8 Qf1 Be6 Qa5 Qd6 Rab3 Nc7 Red3 Bh4 Kb8 Qg2 Rhe3 Bg3 Rbb4 Qe2 Ra4 Qf3 Rda3 a7+ Kb7 a8R Qd3 Rah8 Ka7 Rg8 Qb4 Na8 Ra5 Bd7 Qa4 Bc8
1N2nR1k/1p1r2N1/n1bb4/1b2QQ1r/1B4Q1/1n2qr2/KRR3rb/n3bB1R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 h4 Kf7 c4 g5 Kc2 Kg7 Kb3 d5 a4 g3 e4 f3 c5 f4 h5 g4 e5 f2 e6 g2 a5 g3 c6 d3 a6 f3 e7 d4 e8Q d2 a7 d3 c7 Bd7 c8Q Nf6 Qe4 Bc6 Ra2 Qb6 Ra1 Bd6 Ra4 Qe3 Ra6 Ne8 Qc2 d1N Ra2 d2+ Bd3 f1R Ne2 g1B Qd8 g2 Nbc3 f2 Qdh4 Bgh2 Nd5 g1B Ba3 Na6 Nef4 Bg3 Ne7 B1h2 Rb2 Rg1 Qc5 f1B Qb5 Be1 Qbf5 Rg2 Ka2 Rh7 h6+ Kh8 Ne6 b3+ Ka1 Rd8 a8R Rd7 Qhg4 Be2 Rc2 b2+ Ka2 b1N Bb4 Rf7 h7 Rf8 Qfd5 Rf3 Ng7 Bf1 Qee5 Be2 Bg6 Beb5 Qc5 Rh3 Bd3 Rh5 Nc8 Rf7 Ne7 Rf3 Ra7 Qf4 Be2 Ne3 Bf1 d1R Qef5 Qg5 Qce5 Nd2 Rb2 Nb3 Ra8 Qh6 Rc8 Nc2 Rc7 Bd7 Nc6 Qe3 Nb8 Nca1 Rcc2 Bdc6 Qgg3 Bc5 Qgg4 Rd7 Ne6+ Nf6 Ng5 Kg7 h8R Be7 Rf8 Bd6 Rf7+ Kg8 Ne6+ Kh8 Ng7 Ne8 Rf8+
1rb5/1q1rRnN1/b6B/2b2QRB/1q2q3/1Nb2r1n/KRp3kr/B2QRq2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 a4 Kd6 d4 c5 Kd2 h5 Kc2 f5 Kb2 b5 g4 b3 d5 Ke5 g5 f3 a5 f4 g6 f2 g7 b4 a6 h3 d6 h4 a7 h2 d7 h3 Bd2 c3+ Kc1 c2 Kb2 f3 Ra4 c1B+ Ka1 c4 Na3 b2+ Ka2 b1B+ Ka1 b3 Ne2 c3 Nb5 Nf6 g8Q Qe7 d8B Nbd7 Ra6 Rb8 a8R Nh7 Ra4 Bd3 Qc2 b2+ Kb1 Qb4 Qg4 Ng5 Ned4 Rh7 Nb3 Bc5 Bg2 f1Q Ka2 f2 N5d4 Bda6 Qcd1 c2 Ne6 b1R Rg1 h1Q Ra7 h2 Bh3 Bb2 Ng7 Bc3 Ra5 Qe1 Rb7 f1Q Qgf3 Qh4 Bg4 Nh3 Bh6 Qhg2 Bdg5 h1R Be3 Rh2 Bd4+ Kd6 Qf2 Ne5 Qf5 Nf7 e5+ Kd5 Rbb5 Qhe1 e6+ Qe5 e7 Qh1 Qh5 Ke4 e8R Qe7 Be5 Qb7 Re7 Qhf3 Rb6 Qf4 Rh1 Ke3 Rg1 Kf2 Qf5 Qff3 Rh1 Kg2 Rab5 Qfe4 Bd4 Be1 Ba1 Bc3 Rg6 Rc1 Rg5 Rb1 Qdd5 Re1 Qd1 Re3 Rb6 Rf3 Rb5 Qfd3 Re1 Qf1 Nd2 Qbd4 Rb2 Qdb4 Nb3 Rh8 Rg6 Rd8 Rg5 Rd7 Bh5+
2KBb1R1/Q2Q1b1n/1R1q1B2/1b1n3B/2NnN1q1/2b2rnr/1kpRr3/R4r2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kf3 Kd4 e4 h5 g4 c5 a4 b5 e5 f5 g5 b3 g6 b2 e6 b4 d3 h3 g7 b3 a5 h4 a6 h2 a7 c3 e7 c2 e8Q c4 Ra2 h3 Na3 Kc3 d4 b1Q d5 b2 d6 Nc6 d7 Nd4+ Kf2 f3 Kg3 f2 Kf4 Bb4 Ke5 f4 Qg6 f3 Bg2 f1R Qg3 Nf6 g8R Nh7 Qg4 f2 Bh6 c1R Ra1 Rc2 Rg7 Re2+ Kd5 Qg6 Qf5 b1N Qh5 Kb2 Bf3 c3 Rg8 c2 Bg7 Qg4 Qf7 Bc3 Kd6 Ba6 Qe7 Bc4 Bf6 Bf7 Qe3 Rb8 a8R Rb3 Ra6 Qe7+ Kc7 Qd6+ Kc8 Be8 Bg2 Bf7 Nf3 Be8 Rg1 h1B Ng5 h2 Bc6 Bd5 Rg2 h1N Rb6 Bdf7 Ne4 Ng3 Ba4 Ng5 Bb5 Rh3 Bc6 Nh7 Qdd3 Ndf5 d8B Nd4+ Bd7 Be1 Qb5 Nc3 Be6 Bd2 Qd7 Nd5 Bf5 Bc3 Bg6 Rb1 Bh5 f1B Qf2 Bd2 Rc6 Rf3 Qg1 Bc3 Ra6 Rd2 Rb6+ Bb5 Qe3 Rbf1 Rf2 Rdd1 Rd2 Rde1 Qg1 Re2 Qf2 Nb3 Qc5 Nd4 Qc7 Kb3 Qa7 Kb2 Nc4+
2r3b1/2Qn2rB/1nN1b3/2Bn2bR/5rQR/1Q1pnkB1/q1rqb1NK/2B5 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 Kg6 Kf2 Kh5 Kg3 b5 c4 e5 h4 d5 c5 g5 a5 d3 f5 b3 f6 d2 a6 d4 c6 d3 c7 b2 f7 e3 a7 e2 Nc3 b1B Kh2 e1N Qf3 d1B Na2 e4 Nb4 e3 Na6 b4 Nh3 b3 Bd2 b2 Rg1 e2 Nb4 Be7 f8B Ba2 Qe3 b1N Rg2 g3+ Kg1 Kg4 h5 Nf6 h6 Na3 h7 Nbd7 Qf2 Bg8 Bc3 Nc4 Qd4+ Kf3 Nc6 g4 Rc1 Ncb6 Bb2 Nc2 Nf4 e1Q Rh2 g2 Rh4 Be2 Kh2 g1R Bh3 Rf1 Ng2 Ne3 Rc5 Qd2 Rch5 Nfd5 Bc1 Bg5 Bc5 Qf6 Qc3 Qf7 Qb3 Rb8 a8Q Rf2 Qa5 g3+ Kg1 Ra8 Qac3 Ra2 Bf5 Rc2 Qa5 N7f6 Qab4 Be6 c8Q Qa7 Qc7 Qa2 Bg6 Nfd7 Q4c4 Bgf7 Qca4 Rc8 h8B Bg8 Qab4 Bef7 Bh7 Be6 Nf4 g2 Kh2 Rf1 Be5 g1R Q4a4 Rg4 Ng2 Rg1 Bg3 Rf4 Qd4 Rf6 Bgd6 Bh6 Nf4 Rg7 Ng2 Bg5 Bg3 Rf4 Qde5 Rd4 Qf5+ Rf4 Qg4+
q1b3b1/q3Q1n1/npn1R3/q4Q2/QqN3bb/2Rr4/N1Bk1n1B/r4RKR b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 e4 Ke5 g4 h5 a4 d5 c5 f5 c6 f3 g5 d3 g6 Kd4 a5 b3 a6 f4 a7 d2 c7 b2 e5 h3 e6 h2 g7 h4 e7 h3 e8R Na6 Qe1 d1B Qe6 Bb3 Qe2 Ne7 g8Q Nc6 Qge6 Be7 Nd2 Kc3 Qf7 b1Q Ra5 d4 Rf5 d3 Qg6 Bg8 Qh5 Qb4 Nb3 d2 Rb5 d1B Qg4 Bh4+ Qg3 b6 Qe4 Qde7 Na1 Qg5 Ba3 Kd2 Bd3 Rh5 Kf1 f2 Qe7 Bdg4 Nc2 Rh6 Ra5 Rd6 Qf3 Qh5 Bf5 Rd3 Ne2 Qf7 Bb2 Qd5 Ra1 Qda5 Rg1 h1N Nc3 h2 Ne3 Ng3+ Kg2 f1N Na2 Nh1 Be5 Nfg3 Raf1 Nf2 Rh1 Nh5 Qd5 Ng7 Qdf7 Rd8 Bc2 Rd5 Qf5 Rd3 Re1 f3+ Kf1 Rb8 a8Q Rb7 Rf8 Ra7 Rf6 Qb1 Re6 Qbb4 Rg1 h1Q Bh2 Nh3 Ra1 f2 Rc1 Qhd5 Rb1 Qd7 Kg2 f1Q+ Kh1 Qe1 Rf1 Nf2+ Kg1 Qc1 Ra1 Qca3 Rac1 Bb7 c8R Qdd5 Rc7 Q3a4 Qae8 Qd8 Q8d7 Qa8 Ra1 Bc8 Qde8 Nd4 Rc3 Qaa3 Qeb5 Nc6 Qa4 Qb8 Kg2 Qa8 Rh1 Nc5 Qb5 Qa6 Kg1 Q6b7 Rf1 Ra6 Qa5 Qba7 Nc1 Qa2 Qb5 Ra3 Qa5 Na6 Qab5 Qd5 Qa4 Ra1 Na2 Qda5 Nc4+
2kb1r1Q/KpNn4/1QRn2n1/1B1R2bN/2q2rR1/1rB2r2/2b1q2B/1nb1B3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 h4 d5 a4 Kd7 c4 e5 f4 g3 h5 e3 Kd3 e2 a5 e1B h6 g4 h7 e4+ Ke2 b3 c5 d3+ Ke3 b2 Kd4 e3 f5 d2 f6 e2 a6 g2 a7 g3 f7 Qh4+ Ke5 d4 Kd5 d3 Nh3 g1B Qb3 d1Q Qc3 g2 Ra5 d2 Qe5 Bh6 f8B Bg5 Bg7 B1e3 Na3 g1R Nb5 b1N Qb2 Rg4 Be5 Rf4 c6+ Kd8 Bd6 Bf5 c7+ Kc8 Rg1 Bc2 Rg4 Nd7 Qd4 Rf3 Bh2 Ne7+ Kd6 Rf4 Qb6 Rhf8 h8B Ng6 Bc3 Bg3 Ba3 e1R Bab4 Qe2 Kd5 Rb8 a8Q d1N Kd6 Rf3+ Nf4 Nb2 Kd5 Bd8 Nh5 R8f4 Kd6 Rc1 Be1 Bd2 Bc3 Nc4+ Kd5 Qe8 Be2 Nd6 Bd3 Qe2 Bc4 Nde5 Kc5 Rd1 Bd3 Bc1 Bc4 Rdd4 Bd3 Rb4 Bc4 Kd7 c8R Rb3 Rc6 Bg5 Nc7 Rbf8 Rb5 Bd8 Qa1 Kc8 Ra5 Bg5 Bb5 Bd8 Ra4 Bf2+ Rd4 Bfe3 Qb2 R4f5 Qa1 Beg5 Rd5 R3f4 Qba7 Rf3 Kb6 R5f4 Q7a6 Nd7+ Ka7 Qc4 Qb6 Qf2 Bcd2 Qff1 Qh8 Qfe2 Bc3
BrNb4/n4Kbb/r4B2/1R3BqR/n2qbbQ1/1k2pB2/6pN/Q1R1q1r1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 f4 Kd5 a4 Kc4 c3 d5 h5 b5 a5 e5 a6 g5 f5 e3 h6 b3 f6 e4 h7 b2 f7 g3 a7 g4 Rh4 b4 Ra6 b3 Rg6 g2 Rg7 g3 Rgg4 d3+ Ke1 d4 Nf3 g1B Qd2 g2 Rh6 e2 Rg5 Bh2 Kf2 Bb7 Rhh5 Bg7 f8R Nf6 Rb5 Nc6 Qd1 Nd7 Bg5 d2 Bf6 d3 Ke3 e1B Be2 Bh4 Rg8 Bd6 Nh2 Nc5 Bf3 Na4 Qe2 Qe7 Rc8 d1R Rc7 Rhd8 h8Q Rg1 Rc8 Rb8 a8B Qe5 Qd1 d2 Qg8+ Qd5 Qe6 Re8 Qg4 Re6 Qc1 d1Q Rc7 Bdf8 Kf4 e3 Rc8 Qd8 Kf5+ Q1d4 Kg6 Bd6 Kf7 Bf4 Qe1 Q8d5 Qc1 Qg5 Nd2+ Kd3 c4 b1B c5 b2 Nc4 Na7 Rc7 Ra6 Nd6 Be4 c6 Bc2 Qb1 Kc3 Nc8 Bcd3 Qa2 b1Q Qa1+ Kc2 Rcb7 Bh7 c7 Bde4 R7b6 Qbb4 Rc6+ Kb3 Rc1 Qgc5 Be5 Bd8 Bf6 Qg5 Ne7 Bb1 c8B Bbc2 Bf5 Be4 Rd5 Qa5 Nc8 Qe1 Rb5+
bBR3Q1/R2qb2N/1b2q1QB/rrn5/B3n2b/1p1B1kp1/n3r2N/b4NK1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 Kg6 Kf2 Kh5 c4 g5 h4 e5 c5 d5 f5 b5 c6 e3+ Kg2 e4 c7 b3 a5 d3 f6 d2 a6 e2 a7 e1B f7 d4 Rh2 e3 Ra4 d3 Ra3 b2 Nf3 g3 Nc3 Kg4 h5 b1R h6 b4 h7 e2 Rh1 Be7 f8N Bb7 c8B+ Qd7 Ne4 Nf6 Nh4 Qe6 Rh2 Na6 Rh1 Nc5 Nd7 Re8 Kg1 g2 Nf3 Bh4 h8B e1B Ng3 Nfe4 Qc2 d1N Be5 d2 Bd3 Ndc3 Nf8 d1Q Bd7 Na2 Bb8 Bc3+ Nf1 Ba1 Ba4 Rb2 Nh7 b3 Bdb5 Qdd7 Bd3 Rf8 Qb1 Re2 Qc2 Rf5 N3h2+ Kh3 Qb1 g4 Bh6 Re5 Bc7 Rb8 a8Q Bd5 Bd6 Rb5 Qg8 Ba8 Bb8 Rh5 Qb2 Rd5 Qf6 Ra5 Qfg6 Re5 Ne3 Kg3 Nhf1+ Kf3 Rh2 Nb7 Rh1 Reb5 Rh2 Nbc5 Rh1 Bhf6 Rh5 Bh4 Rd5 Qc8 Rd8 Qb7 Rc8 Qbd7 Kh2 g1B+ Kh1 g3 Ng4 Nb4 Ra2 Nca6 Ra3 Bb6 Ra2 Nac5 Kg1 Qd8 Ra3 Qdd7 Qg5 Ra7 Q5g6 Nd5 Ra2 Ndc3 Ra3 Rb4 Bab5 Na2 Ra5 Bc7 Ba4 Rb5 Ra6 Bcd8 Rb6 Raa5 Rb7 Bc7 Ra7 Bb6 Ngh2+
2Bk1Nr1/1KRQqbnn/3q4/1n2Q1Br/2Rb2N1/1pR2pn1/2NN4/3q1nr1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 d5 g4 h5 e4 f5 a4 b3 c4 b2 c5 d3 a5 d4 a6 h3 c6 h2 e5 h4 a7 d2 g5 b4 e6 h3 e7 d3 c7 b3 g6 Nf6 g7 Be6 c8R Rh5 g8Q Nc6 Ra3 Bf7 Ra6 Nh7 Qg5 Bg7 Ne2 Bd4 Rc7 Rb8 a8N Na7 Rc3 Nb5 Ra7 Rc8 Rg1 h1N Rac7 h2 Nb6 Ng3 Nd7 h1N Nf8 Qd7 Bh3 Qd8 Na3 b1R Nc2 Qd6 Qg7 Qc5 Qe1 d1Q Rc4 Qd2 Nc3 Qh2 Bg4 d2 Ne4 d1Q+ Qe2 Qh4 Nd2 Qd6 Bh3 Nf1 Rc3 Ne3 Rg4 Ng3 Qe5 Qe1 Qd3 Qd1+ Kf2 f3 Rf4 Bc5 Rfc4 f4 Be6 Rd8 Bc8 Nef5+ Qdd4 Ba3 Qd3 Bb2 Qdd5 Ng7 Qde6 Bg6 Qd7+ Kf7 e8N+ Qhe7 Qg5 Qh1 Nf1 N3f5 Re3 Bd4 Nf6 Re8 Ne6 Rg8 Nf8 Ng3 Ke1 f2+ Kd2 f3 Ng4 Nf6 Qe5 Nh7 Rec3 Rf5 Kd3 Rh5+ Qdf5+ Ke8 Bg5 Kd8 Nd2 Bf7 Qfe6 Rg1 Q6f5 Qh3 Qfe6 Ne2 Ke4 Qf1 Q6f5 Qd1 Qfe6 Qa3 Kd5 f1N Kc6 Neg3 Kb7 Qd6 Qd7+
1Qb1Rr1N/k1rN2R1/qn3Rr1/q1Q2KbR/7p/pr3n1B/4r2q/1Q2B2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 Kd3 d5 e4 Kd7 b4 Kc7 g4 Kb6 c4 a5 b5 h5 g5 f3 e5 f2 g6 a3 g7 f4 c5+ Ka7 c6 h3 e6 f3 c7 h2 e7 a2 e8R h4 Qb3 a4 Nd2 a3 Ne4 Nd7 Qc4 Ngf6 g8Q Be7 Qg2 Rb8 Rb1 a1R Nd6 Nh7 Bb2 Bg5 Be2 f1R Qc1 f2 Rf8 Re1 Qf1 Nb6 Rf6 Rf8 Bg4 Re2 Nf7 Qd6 Qfd1 f1Q Nf3 Qc5 Rg1 h1B Be6 Ra2 Ba1 Rac2 N3e5 Qg2 Rb4 Qh2 Nh8 Rb7 Qf1 Rb2 Rc4 Rb3+ Bc3 Qb4 Rc5 Qa5 Bh3 Qa6 Qd2 Qa5 Qb1 Qa6 Kc2 d3+ Kc1 Bh6 Nef7 d4 Rfc6 Bg4 c8R Nd5 Qe3 d2+ Kc2 d1R+ Bd2 Rde1 Ne5 Ng5 Rf6 Nf3 Re8 Bc8 Rg7 Rg1 Nd7 Rc7 Qe5 Rg6 b6+ Ka8 b7+ Ka7 Qd6 Nb6 Qc6 Qa5 Rh5 Bg5 Qc5 d3+ Kd1 Rh6 Be1 d2 Kc2 Qa6 Bf5 Rg6 Bh3 Rb5 Kd3 d1Q+ Bd2 Qe1 Bc3 Be3 Ke4 Bg5+ Kf5 Rb3 Ba5 Qd1 Be1 Qd2 Qbc2 Qc3 Qb1 Qca5 b8Q#
q2N2B1/R1q1b2K/5B1N/Rk5b/1BrRpQnp/7R/2q2qn1/q2rQn1r b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 f4 Kd7 a4 Kc6 g4 e5 c4 b5 g5 h5 g6 b3 a5 d3 Ke3 b2 a6 d2 g7 d4+ Ke2 e3 Kf3 d3 Ke4 e2 c5 e1Q+ Ne2 b4 a7 h3 f5 h2 f6 b3 f7 Qf2 Na3 b1Q Ng3 b2 Nf5 Nd7 Nh6 Qc7 Nc4 Qc2 Nd6 b1Q Bb2 Ne7 g8R Nd5 Nb7 Be7 f8B Kb5 c6 Ne3 Nd8 Ng2 Qe1 d1N Rg4 Nde3 Rf4 Rb8 a8R h4 R1a2 Qa1 R2a7 Bb7 Be2 Nf1 Kf5 Nf6 Kg6 Ng4 Rd4 Ba6 Bf3 d2+ Be4 Rg8+ Kh7 d1R Bg6 e4 Bf7 Rc8 Ba2 Rg5 Bg8 Rc5 Bc3 Rc4 Bb4 Rb8 Bg7 Bc8 Bh8 Be6 Bf6 Bf7 Rd3 Bh5 Rd4 Qcg3 c7 Qaa2 c8Q Qc7 Rg1 h1Q Qe6 Qa1 Qf7 Qh3 Qf8 Qha3 Rh1 Qa6 Rh3 Qac6 Ra2 Qd5 R8a7 Qa8 Bh8 Rb6 Qf4 Ra6 Bf6 Ra3 Rh1 Rh3 R2a5+ Kb6 R5a6+ Kb5 Rg1 N2e3 Rg3 Rh1 Rh3 Ng2 Ra5+
Rr4rn/1kBn2Qq/3K2n1/2np4/bBq3b1/bnQ3B1/B2N1pq1/3NN1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 d5+ Kb5 Kd7 e4 Kc7 b4 a5 h4 g3 c4 f3 c5 g4 e5 d3 e6 d2 h5 f2 c6 g2 e7 g3 Kc5 a3 h6 f4 b5 f3 h7 a2 Qe1 d1B Na3 a4 Rb1 a1N Ne2 g1Q Nc3 g2 Bc4 Bg4 Nc2 a3 Bd2 Qd7 Ba2 Nh6 b6+ Kc8 c7 f1Q+ Qf2 Rg8 h8B Kb7 Be5 Nf7 Ne1 Nh8 Qd4 f2 Bg3 Ba4 Qg7 Qa6 Nd1 Nb3+ Kb4 Qh2 Rg1 Nc5 e8N Qe7 Rc1 Nbd7 Nf6 Rb8 Ra1 Qh1 Ne4 Qc4+ Ka5 Qg5 Bb4 Qh7 Nd2 Qgg6 Bb3 a2 c8Q+ Ka8 b7+ Ka7 Rc1 a1N Ba2 Be7 Rc3 Bd6 Ra3 Bf8 Rh1 g1N Bc7 Nf3 Rg1 Nh4 Bg3 Bd6 Qc7 Rbe8 b8B+ Ka8 Qc3 Qge4 Qg7 Qg2 Qc8 N4g6 Bc7+ Nb8 Kb6 Nab3 Qf5 Be7 Qfe5 Rd8 Qc3 Rde8 Bcf4 Nbd7+ Kc7 Rb8 Be5 Bg5 Kd6 Kb7 Nb1 Bc1 Nd2 Bc6 Ra8 Ba3 Bf6 Bb5 Bd8 Ba4 Bc7
4Rbn1/1QNNnrB1/1r2r3/1p1r1B1R/b1nrQk2/N2q1q2/1p4bK/N4B2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 g4 Ke6 Kg2 Ke5 a4 f5 c4 d5 e4 h5 g5 d3 a5 d4 a6 b3 c5 f3+ Kh3 f4+ Kh2 f2 g6 f3 g7 h3 c6 b2 a7 h4 c7 d2 Qa4 d1R Qc2 d3 Ra6 d2 Qc4 Bd7 c8B Kf4 Qd3 Rh6 e5 Rb6 e6 Nc6 Bg2 f1R e7 f2 e8N Nce7 Ra2 Ba4 Nc7 Rde1 Qd7 Ree6 Na3 Rb8 Qe8 Qd3 a8Q Rbd6 Nf3 b5 Ne1 Rd4 Qd5 Rbb6 Nec2 Rd1 Qb7 f1R Na1 Rf3 Bf1 Rd5 Kg1 h2+ Kg2 Rd4 Rg1 h1B+ Kh2 h3 Rg5 Bg2 Rh5 Rde1 Qec6 R1e5 Qc4 Rd5 Bd7 Ree3 Bf5 d1N Bd2 Rf2 Bc3 Ree6 Qb4 Ne3 Qc4 Nh6 g8N Rf3 Qcc6 Nc4 Nf6 Nhg8 Nd7 Rg3 Nb3 Rg7 Ra1 Rh7 Re1 Rf7 Na1 Rde4 Bg7 Red4 Kg1 h2+ Kf2 h1Q Re2 Qhh3 Kg1 Qhf3 Kh2 Red6 Re6 Nc8 Re8 Re6 Na8 Nce7 Nc7 Rg6 Qe6 Rgf6 Qe1 Rfe6 Qe4+
n4br1/2B1Q2Q/4RnpB/K1N1BR1B/N1r1qpkq/1b4rn/1r6/1r3b1Q b - - 0 1 illegal: No possible last move
RrqR1Bb1/N7/2N2p1K/3Br2Q/2bBr2n/2rn2n1/1r1pkR1R/Q1b4q b - - 0 1 illegal: No possible last move
1b1nrB1K/1BRB2r1/B1qrp1r1/3q1nnp/3r4/1kN2R2/bQ1Qq2R/6N1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 g4 Ke6 c4 b5 f4 h5 a4 d5 c5 e3+ Kd3 b3 c6 b4 g5 e2 g6 e1Q g7 h3 c7 h2 a5 b2 a6 b3 a7 Nh6 g8R Nf5 Rg5 Nc6 Rg3 Rh6 Nd2 b1N Nh3 b2 Nb3 Rg6 Ra4 Nd2 Ra3 b1R Ra2 Nf3 Rc2 Ng5 Nd2 Rb7 Ne4 Bg7 Be3 Be5 Nc3 Qe8 Qa1 Nd8 Rf3 Qc6 Qb2 Kd6 Bf2 Kc5 Ng1 Be6 c8B Bb8 Bd7 Bf7 Rc1 Bg8 Qd2 Kb4 Be3 Kb3 Rc2 Nh4 f5 Bf7 f6 Nf5 Rc1 Bg8 f7 Qd1 f8Q Qc2+ Ke2 d3+ Kf2 d4 Qg7 Bd5 Bf4 e6 Bd6 Bc4 Bf8 Qd5 Qe2 d2 Qge5 d1R Qd2 d3 Qg7 Ne7 Ke3 Qb2 Qe5 Nf5+ Kf4 Rc7 Qf6 Qc6 Ke5 Bd5 Qe3 d2 Ba6 Qc2 Qg7 Qd3 Qh8 Qe2 Rc2 Re1 Qf6 d1R Rc1 Rd4 Rc2 Be4 Qd2 Ra1 Rc1 Rd6 Qg7 Ra4 Qh8 Rad4 Rc2 Rg8 Kf6 Rb7 Rc1 Bb1 Qg7 Ba2 Kg6 Ne4 Kh7 Rc7 Qf6 Rg6 Kh8 Ng5 Qe5 Rb7 Qg7 Bc7 Rc2 Rc8 a8B Bb8 Qf6 Rbc7 B8b7 Qd5 Nh3 Qc6 Rhc1 h1Q Ng1 Qhg2 Rcf1 Qh1 R1f2 Qd5 Rh2 Qc6 Be8 Rcg7 Bd7 Qd5 Rd3 Qhe4 Rf3 Qc6 Rc1 Qed5 Nb1+ Qc3 Rd1 Ra4 Qdd4 Nc6 Qd2 Re8 Rc1 Nd8 Rc2 Qcd3 Rc7 Qc6 Qa1 Rb4 Nc3 Qdd5 Qac1 Rd4 Qcb2#
K4n2/Rnb1BqB1/p7/Nb1n2q1/QQq2B2/1B1n3k/p3r3/n1rNRQ1b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 d5 h4 g5 c4 d3 b4 d4 e3 d2 h5 g3 h6 g4 c5 d3 c6 a3 h7 a6+ Ka4 a2 b5 g2 b6 f3 Ka5 f2 c7 g3 b7 Bd6 Kb6 Nd7+ Kc6 Qe7 b8B Nf8 Rh2 Nh6 Qe1 Kg4 e4 d1N e5 f5 e6 d2 Rh1 f4 Qe3 f3 Na3 Nc3 Ba7 d1N Bc5 Nf7 Nc2 Nb2 Bd2 Bb7+ Kb6 Re8 Ka7 Nd8 c8Q Nd5 Qe2 Nd3 Bf4 Bc7 Re1 Qf7 Nh3 g1N Nd4 g2 e7+ Kh4 Qd1 Ne2 Qb8 g1Q Nb3 Qg5 Na5 Nec1 Rh2 Ba8 Qb4 Nb3 Be2 Rg8 h8B f1Q Bg7 f2 Bg4 Bb7 Be6 Na1 Qe2 Bc6 Qf3 Bb5 Ka8 Qe2 Bcd6 f1B Nf2+ Bh3 Nd1 Nb7+ Ka7 Qc2 Qf1 Qc4 Rd2 Rc8 e8Q Bg2 Be7 Bh1 Qc6 Qb3 Qc2 Qc4 Qca4 Re8 Bc8 Rh8 Ka8 Rh6 Rde2 Rc6 Re6 Qb3 Rd6 Rc1 Rd7 Qc4 Bc5 Re2 Be7 Bb6 Rc7 Nd6 Ra7 Bc7 Bh3 Nb7 Bf5 Ndc5 Bc2 Nd3 Bb3 Kg4 Qf2 Kh3 Qf1+
KN3r2/6qp/pQr1nbrN/1B3B2/NB3qq1/1n2QN2/R3b3/b2kqR1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 b4 d5+ Ke5 f5 e4+ d3 g5 f3 b5 a3 c3 f4 b6 h3 g6 f2 g7 a6 b7 a2 Bd2 f3 Qc2 h2 Qd1 d4 Qe2 Kb3 c4 Kc2 c5 Be7 c6 Nf6 g8Q Bg4 c7 Qf8 c8B Nfd7+ Kd5 Nc5 e5 Ne6 Bh6+ d2 Be3 d3 Nc3 Bf6 Bg5 Nc6 b8N Na5 Qe1 d1Q Bd2 Qg7 Qd8 Rf8 Qb6 Nb3 Qee3 Qe1 Kc6 Rg8 Be2 f1Q Na4 f2 Bb4 d2 Bb5 Be2 Nf3 d1Q Bd7 Qd4 Kb7 Qdg4 Rg1 h1Q Rg2 Nf4 e6 Rc8 e7 Ne6 e8N Rc6 Rd1 a1B Rb1 Q4g5 Nd6 Qg4 Rb2+ Kd1 Ra2 Qfg1 Rh2 f1R Nf7 Qg1g3 Rf2 Q3f4 Nh6 Rg1 Rf1 Qgf5 Qe4 Rg6 Qe5 Q5g4 Qee3 Nc7 Bf5 Ne6+ Nd7 Rf8 Ka7 Nc7 Nb8 Ne6+ Ka8
2nb2b1/5p1R/K1B4r/QnB1B3/qQk1nQb1/2p3r1/bb1QR1N1/q4r1N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 g4 Kc6 d4 Kd5 Kd2 c5 g5 b5 e3 h5 a5 b3 Kc3 h3 a6 b2 g6 h2 g7 h4 a7 f3 Ra4 f2 Ne2 h3 Ra2 Na6 Nd2 b1B Bb2 Qh4 Ne4 Be7 N4g3 Rh6 Qd2 Nc7 Bg2+ Qe4 Ba3 f1R Rb2 Rb8 a8Q+ Rb7 Qa4 Ba2 Qa5 Bd8 Rc2 Ne7 g8Q Bd7 Qg4 Nc8 Qf4 Bg4 Bb4 Rbb6 Qa3 Rbg6 Rb2 Kc6 d5+ Kb6 d6 Qe8 Rg1 h1N e4 h2 d7 Nf2 e5 h1Q e6 Rg7 e7 Ne4+ Kc2 c3 Kd3 c2 Bc3 c1B Be5 Ng5 Bc6 b4 Rc2 b3 Kc4 Rg8 Rg2 Qg1 Nh1 Bb2 Rh2 Ne4 Rh3 Nb5 Rh5 Qf8 e8Q Rgg6 Qe7 Qe8 Qed6 Rg8 Qg5 Rgg6 Nf4 Rg8 Ng2 Rg7 Kd5 c4 Rh3 c3 Kc4 Rgg6 Qdf4 Rg7 Re2 Rg8 Qdd2 Rg7 Qa8 Rgg6 Kb4 Rg7 Ka4 Kc5 Qe7+ Kc4 Qa5 Bf3 Qa3 Rg3 Rh4 Bg4 Rh2 Ba1 Rh5 b2 Rh4 b1B Rh5 Be7 d8B Bb2 Bb6 Bd8 Bc5 Qd7 Qb6 Bc2+ Ka5 Bd3 Ka6 Bdb1 Qe1 Qd1 Rh2 Qa4+ Qa5 Qe3 Qf6 Rhh3 Qf4 Qc1 Qf3 Ng5 Bed6 Bh7 Be5 Qa1 Qd2 Ne4 Qff4 Rh5 Rh4 Bg8 Rh3 Rh6 Rh4 Rg6 Rh7 Rh6 Qb4+
1RRB1k1n/Bq3pqB/N2R1n2/p1Qr4/2n1b2r/b4NR1/1Qn5/1K1n1qb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 c4 d5 Kc2 h5 e4 d3+ Kc3 h3 g4 d4+ Kd2 a3 b4 f3 c5 f2 c6 h4 b5 h2 e5 h3 g5 a2 b6 Bf5 c7 Qf6 g6 Rh4 g7 Ne7 g8R Be4 b7 Nd7 b8B Qg7 e6 Ng6 e7 Nf6 Qb3 Nh8 Kd1 d2 Bd3 f1N Kc2 d1N Nc3 Nd2 Ba7 Nc4 Nb5 Rd8 Bg5 Rd5 Rb1 a1B Nf3 Nde3+ Kc1 Nc2 Rd1 h1Q Qb2 h2 c8Q+ Rd8 Qc7 Rd5 Qc5 Qg2 Rd2 h1Q+ Rd1 Qhf1 Nc7+ Kd7 Na6 Ke8 Qb7 Bc3 Qb2 Be1 Rd2 Bf2+ Rd1 Bh7 Bf5 d3 Be4 Bg1 Bg6 Kd7 e8R Bd6 Rb8 Ke7 Rgc8 Qh1 Ra1 d2+ Kb1 Qhg2 Ra3 Qh1 Bh5 Be4 Bg6 Qhg2 Bh7 Qh1 Re1 d1N Rd3 Qhg2 Ree3 Qh1 Nh2 Qhg2 Rg3 Qgf3 Rd4 Qb3 Nf3 Qb7 Qcb6 Ba3 Q6b4+ Rc5 Rd6 Rd5 Qc5 Qc7 Bb6 Qb7 Bd8+ Kf8 Bb6+ Ne8 Bgd8 Nf6 Ba7
bb1K2n1/k2p2r1/3q3R/3n3Q/bR1n1rB1/3nrnp1/N2NQRQB/3Q2q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 h4 f5 c4 b3 e4 g3+ Kf3 b2 a5 d3 h5 g2 h6 g4+ Kf2 f3 Kg3 f2 Kf4 g3 Ke5 d2 c5 f4 a6 b4 c6 b3 c7 f3 h7 Nc6+ Kf5 Qe7 a7 Qd6 e5 Nd4+ Kg5 Bb7 Ne2 g1N Na3 b1Q e6 b2 Bg2 f1B e7 f2 Nc3 Bb5 Bf3 f1R Nc4 Ba4 Bg4 Rf4 Ra2 Rb8 Rh4 Ba8 Rh6 Rd8 c8R Ngf3+ Kh5 Qa1 Rb8 b1N Rb4 Bg7 Rc2 Be5 Na2 Nc3 Bb2 Nd5 Ba3 Qc5 Kg6 Bb8 Bb2 Qd6+ Kg7 Nb5 Bd4 Qb1 Bf2 Nbd4 Bg1 Qc1 Bh2 Qa1 Qh1 d1N Rf2 Nb2 Qd1 Nd3 Nd2 Rc8 Qb3 Qg1 Qd1 Ngf6 Kg6 Rc3 Kg7 Rf8 h8Q Ng8 Qh7 R8f6 Qf5 Re6 Qh5+ Rg6+ Kh7 Kf7 e8Q+ Kf6 Qee1 Kf7 Qf1 Ke8 Qfe2+ Kd8 Kh8 Kc8 Kh7 Re6 Kg7 Re3 Nf1 Rc4 Nd2 Ndf6 Kf7 Nd5+ Bf5 Rg4 Be6 Kc7 Ke8 Kc6 Kd8 Rg7 Rb2 Rb4 Bg4 Kb6 Rb3 Bb7 a8Q Bbc6 Qa5+ Kb7 Qb5+ Ka7 Rb2 Ba8 Qc6 Nb5 Qcc2 Rf4 Rb4 Nbd4 Qdf1 Rh7 Qcd1 Rg7 Qg2
1Q1n2q1/bp1BK1k1/N1b1Nr2/B5B1/R2nrq2/1Q2p2B/n1QR1b2/qbb5 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 e5 a4 g5 f4 d5 c4 e3+ Kd3 g3 c5 g4 h5 e4+ Kc2 d3+ Kb3 e2 h6 e1Q f5 g2 a5 g3 f6 d4 Kc4 b3 c6 d2 c7 d3 a6 b2 h7 Nc6 a7 Qe3 Nf3 g1B Qe1 d1Q Qe2 g2 Rh2 d2 Ra4 Nge7 Nc3 b1B Nb5 Nd4 Kc5 Bd7 Kd6 Bf2 c8B g1B Bh3 Bc6+ Bcd7 Bh6 Nc7 Qg8 Na6 Re8 a8Q Rf8 Qb8 Qf4+ Kc5 Kg6 f7 Kg7 Ng5 Qe1 Qc4 d1N Qc2 Nc3 Bd2 Na2 Ba5 Qec1 Rg2 Qb2 Qb3 Qa1 Qc7 Re8 f8Q+ Kg6 Qf5+ Kg7 Qb8 Rf8 Rh2 Rf6 Rg2 Bd5 Rh2 Nec6 Rg2 Nd8 Ne6+ Kf7 Rh2 Bc6 Rg2 Qfg3 Rh2 Bc1 Rg2 Qf3 Kd6 Qfg4 Qc5 Kg6 Rh2 Qf4+ Ke7 Kh6 Ng5 Kg7 Qcc2 Nf3 Rg2 Ba7 Re2 e3 Rd2 Bf2 Ne6+ Kh6 Qcd3 Nd4 Qdc4 Qg2 Qe2 Rg8 h8B Rg4 Bg7+ Kh7 Bh6 Qd5 Nec5 Qg8 Bg5 Kg7 Qec4 Qg3 Qcc2 Re4+ Qe5 N8e6 Qc7 Qf4 Qb8 Nd8+ Ne6+
R1n3Q1/1pK2R2/NnNQBn2/q2qB1kp/3n1n1r/2r4R/2N3bR/2q1b1b1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Kf6 g4 e5 a4 d5 c4 e3 Kf3 h3 a5 b3 f5 d3 c5 d4 Ke4 b2 a6 e2 c6 e1B a7 h2 c7 d2 Ne2 d3 Ng3 Nc6 Ra5 Kg5 f6 Nd4 f7 Bc5 f8R Ne7 Nc3 b1Q Rg1 h1N Bb2 Qc1 Bh3 h5 Nd5 Nf2+ Ke3 e4 Ne2 Bd7 c8N Bc6 Ra3 Qa5 Nc7 Rh6 Ra2 Rf6 Rf1 Rf4 Rh1 Rb8 a8R Ba7 Nd6 Rc8 Ndb5 Bd5 Na6 Rc3 Ba1 Nc8 Rf7 Bb6 Na7 Bc5 Qa4 d1Q+ Rd2 Qb3 Qd7 Bc6 Qd6 Qd5 Qd7 Kg6 g5 Rh4 Qd8 Ng4+ Kf4 e3 Qd6+ Nf6+ Bg4 Bb6 Rh3 Bc5 Rc2 d2 Rb2 d1N Ra2 Nf3 Nd4 Nb2 Nc2 Nc4 Bb2 Nd4 Ba1 Bb5 Nc6 N4b6 Rb2 Bf1 Ra2 Qh1 Ke5 e2 Be6 Bg2 Rf8 Kg7 g6 Kh6 g7 Kg5 Rb2 Bf2 Ra2 e1N Rf7 Bg1 Rb2 Bb4+ Nc5 Bd5 Na6 Ng2 Ra2 Nf4 g8Q+ Kh6 Rb2 Bg2+ Bd5 Rf3 Rc7 Nf5 Ne1 Bf1 Rbh2 Qca3 Qd7 Qc1 Nc2 Be1 Qdd8 Qg2 Rf7 Qgd2 Qe7 Bg2 Bd4 Rc3 Qc5 Ng3 Be6 Nge2 Qd5 Na7 Kd6 Nac8+ Kc7 Qd3 Ncb4 Qe4 Qc5 Qd5 Be5 Nd4 Qd6 Qc4 Qe8 Kg5 Nc2 Qcd5 Qg8+
2n1Qqbr/1p2NnpN/b7/3k1N2/1n1B1QRn/2RBbrrQ/1K2Q3/2nq4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Rh3 a4 Ke7 c4 Ke6 Kc2 d5 e4 f5 c5 d3+ Kb2 b3 a5 g3 e5 f3 a6 g2 a7 f2 c6 d2 c7 d4 Bd3 f1B Ra4 f4 Nf3 g1N Rc4 Bc5 Bh7 d3 Ne1 f3 Na3 f2 Kc3 b2 Nb5 b1N+ Kb2 Nd7 Rc3 Ne2 Rg1 Nb6 Nd6 Na3 Rg4 Nc2 Nf3 Rg3 h4 Nb4 h5 Nh6 Bg6 Bd7 c8N Kd5 Ng5 Be6 Qe1 d1R Be3 d2 Bc2 Qh8 Nf5 Nc1 Bb1 Bd3 Qe2 Ba6 Bd3 f1N Bg1 Bf7 e6 Ne3 e7 Rf1 Bf2 d1Q Bg1 Ng8 h6 Ng2 h7 Nh6 Be3 Qg8 h8Q Rf4 e8Q Rf2 Qe7 Rf1 Qc7 Rff3 Qh7 Rb8 a8Q Bd4 Bf4 Be3 Be5 Be6 Bd4 Qf7 Na7 Rh8 Qe8 Nc8 Nc6 Qf8 Qb8 Bg8 Qf4 Nf7 Qh3 Nh4 Nh7 Rf1 Nd6 Rf2 Nf5 Rff3 Nce7+
q2n1r1n/4R1nb/3kp1bK/1b1r2RB/QBp2N2/5Nb1/1NbR1R2/b3Q2b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 c5 Kf4 h5 Kg5 b5 f4 e3 a4 b3 d4 e6+ Kg6 b2 g4 h3 a5 b4 d5 b3 g5 e2 d6 e1B f5 c3 a6 c2 f6 h4 a7 h2 f7 h3 Qd5 c4 Na3 b1B Bg2 b2 Bf3 Rh5 Qd4 Bg7 Qc3 Nc6 Bd2 c1N+ Nc2 Nf6 Ra2 Nd3 Ne3 Ba6 Nd1 Bb5 Qa5 Qc8 Bb4 Bg3 Be2 Qb8 Nf3 Nd8 f8N+ Kc6 d7 Bc2 Rf1 h1B Rf2 b1B Nb2 h2 Ra3 Ne8 Qa4 Nf7 d8R Nc5+ Rad3 Bc3 Rd7 Nb7 Re7 Nbd8 Qa5 Qb7 Qa1 Rb8 a8Q Ng7 Q8a4 Qa8 Bd1 Bg2 Be2 h1B Bd1 Nf5 Rdd7 Bf1 Rdd2 Bfd3 Be2 Nd4+ Kg7 Bh7 Ng6 Nh8 Nf4 Rc8 g6 Rd5 Kh6 Nf5+ Kh5 Be5 g7 Bd4 g8R Ng7+ Kh6 Bcg6 Nbd3 Bc2 Qe1 Ba1 Nb2 Nb7 Ng5 Rf8 Bh5 Nd8 Nf3 Bge4 Bc3 Kd6 Ba5 Ne8 Rg6 Ng7 Rg5 Beg6 Bb4+
1QRn1r2/2K5/NQ3BBb/6q1/1q3Nnq/Qr2Nb2/1p1rpNbq/3Rn2k b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 Kg4 c5 Kg3 a5 b5 f5 h5 c6 e5 c7 d5 a6 e3 Kd3 e2 f6 e1N+ Kd2 h3 a7 h4 f7 h2 Nf3 b3 Nc3 h3 Qc2 d3 Ke3 b4 Nb1 e4 Kd4 b2 Ke5 d4 Qc6 d2 Nh4 d1B Na3 b1Q Ng6 e3 Bd3 b3 Nc2 Bh6 f8Q Nf6 Qa3 Bb7 c8Q Rf8 Nf4 Bf3 Bg6 d3 Qb6 e2 Ne3 d2 Bb2 d1R Ra2 Kf2 g4 Rd2 g5 Ng4+ Ke6 Bg2 Bf6 Nc6 Rc2 Rb8 a8N b2 Rg1 h1Q Nc7 h2 Na6 Qc1 Qcc7 Qd4 Qcd6 Kf3 Kd7 Nd8 Rc8 Qb4 Rf1+ Kg3 Rg1 Bc6+ Kc7 Qcc5 Rf1 Qg1 Qe5 h1Q Qe8 Kh2 Qe5 Nd3 Rd1 Ne1 Qd6 Qf5 Qe5 Bcf3 Qeb5 Ra8 Qb8 Qf2 Q5b6 Qh4 Bh7 Ra7+ Q6b7 Qg1 g6 Qa4 g7 Kh1 Bg6 Qae4 Nd3 Qa4 g8N Qfg5 Ne7 Qb3 N7d5 Qgh2+ N5f4 Ra8 Q8a7 Rb8 Qbb4 Rb6 Qb8 Qc3+ Qc5 Rb3 Qc6 Qca5+ Qcb6 Qb4 Nf2+
1r3B2/1rR3rq/qQ2n3/1B4b1/5Bb1/Nq2p3/p1BnNQ1Q/bnK1knR1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 c4 Kf6 f4 Kf5 b4 a5 g3 e5 c5 d5 b5 h5 b6 d3 b7 h3 c6 h4 c7 a3 Bb2 h2 Qc1 Kg4 f5 h3 f6 a4 f7 a2 Nc3 e3+ Kd1 d4 Qb1 e2+ Kc1 e1R+ Kd2 e4 Nce2 a3 Nf4 Ra7 Nd5 Bh6+ Nf4 Na6 b8Q Qf6 f8B Nc5 Bg7 Ne6 Qb7 Bg5 Qa8 Rb7 Ne2 Kf3 g4 Kf2 Bg2 Rg1 Bf1 e3+ Kd1 d2 Ng2 Qg6 Bc3 Nf6 Bf8 Ne4 Qb6 Bd7 Rb1 a1B c8B a2 Qb8 Qh7 Kc2 d1N Kc1 d3 Be5 Ndc3 Ne1 Nd2 Bf4 Qg6 Rb4 Ncb1 Nc2 Rg3 Rg1 h1Q Rd4 h2 Na3 Ke1 Rc4 Qc6 Rc2 h1N Qd6 Qb5 Rc7 Qa6 Qe5 Rg8 Qh8 Rg7 Qh2 Rb8 Bb7 Qh7 Be4 Rh3 Bf5 Ng3 Be4 Rh6 Bf5 Rf6 Be4 Rff7 Bg6 Bh6 g5 Re7 Be4 Bc8 g6 Bg5 Rc2 Reb7 Rc7 Re7 g7 Rd7 g8Q Rg7 Bfg2+ Ngf1 Qf7 Nc5 Bgf3 Bg4 Qf5 Ne6 Be5 Nc4 Bh1 Re7 Bc6 Rg7 Bb5 d2+ Kc2 Na5 Be4 Nb3 Bed6 Baf6 Be5 d1Q+ Kb2 Qd5 Bc2 N3d2 Kc1 Qb3 Bed6 Be5 Qf3 Bc3 Bf4 Ba1 Qff2+
1Kbq1n2/2n2BR1/kN2r3/2QnBB2/Nb5Q/pRpq2b1/2RR1r1r/6nq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 h5 g4 c5 d4 f5 b4 a5 e4 a3 g5 a2 d5 f3 d6 h3 g6 a4 g7 h2 d7 a3 Nh3 h4 Bd2 f4 Rg1 h1Q Qb3 f2 Rg2 f3 Bd3 f1R Be1 f2 Bc3 Ne7 Kd6 Na6 g8R Nc7 e5 Ka6 e6 Ng6+ e7 Ra7 Nf4 h3 Be4 h2 Be5 c3 Qd5 c2 Bf5 c1N Rg7 c4 Qc5 Ne2 Nc3 Ng1 Rd1 a1B Rd2 Re1 Nfd5 f1N Rgf2 Qf3 Na4 h1Q Ndb6 Ne3 Rc2 Bb2 Rfd2 Ned5 Kc6 c3 e8B Qd3 Bf7 Rh2 b5+ Ka5 Qd4 Bb4 Qc5 Nf8 Kd6 Bc1 Kc6 Qg5 d8Q Ree2 Qf6 Ra6 Qh6 Reg2 Qh4 Rf2 Kd6 Qd8+ Kc6 Bd7+ Kb7 Bc8+ Kb8 Bd7+ Nc8 Re6 b6+ Ka6 b7 Rf4 Ra2 Rff2 Rdc2 Bf4 Rd2 Qg5 Ncb6 Bg3 Rab2 Bc8 Rbc2 Nb5 Ka8 Qd8 b8R Qd7 Rb7 Nbc7+ Kb8 Qd8 Na8 Ba5 Rb3 Bb4 N8b6
Rr1Nnqr1/2k2B1n/qq1rBb1B/5KQ1/3p4/pb3Rb1/R2N1R2/n3b2Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 c4 a5 b4 d5 e4 Kd7 h4 a3 h5 a2 h6 f3 h7 f4 c5 a4 e5 f2 e6+ Kc7 e7 g3 e8R a3 b5 f3 c6 g4 Qd2 g2 Qc3 g3 Re6 Bd6 Re5 Nf6 Re7+ Nbd7 Ne2 g1B Qc2 g2 Bg5 Rg8 h8Q Ne8 Re3 Rb8 Rh2 Nf8 Nf4 Nh7 Bh6 Be6 Qd2 Bb4 Qc1 Be1 Nd2 Bf7 Be2 f1Q Qf6 f2 Qg5 Qd6 Rf3 Qc5 Qd1 Qb6 Ne6+ Kd6 Rc1 a1N Nd8 Kc7 Rc2 Be6 Ra2 Bf7 Rh4 Bh2 Rhf4 g1B Qb1 Bg3 Qc1 Kd6 c7 B1h2 c8B Bg1 Qd1 Kc7 Rf6 B1h2 Be6 Bh4 Qh5 B2g3 R6f5 Bf6 Qg5 Qh3 R5f4 f1Q Rf2 Qh4 R4f3 Qf4 Qb1 Qg1 Bd1 Qa6 Bb3 Qfd6 Bc4 Qf8 b6+ Kd6 b7 Kc7 Ke2 d3+ Ke3 Qg7 Ne4 d2 Bb3 d1R Nd2 Qf8 Bc4 Bh4 Kf4 Bg3+ Kg4 Bd4 Kf5 Bf6 Re2 Qgb6 Ref2 d4 Qe4 Rc1 Qeh4 Rc3 Qh1 Rc2 Bcd5 Rc6 Bb3 Rc8 b8R Rd6 Ra8 Rb8 Bc8 Bc4 Be6 Bd5 Bc2 Bc4 Be4 Bb3 B4d5 Qc4 Bf7 Qca6 Bde6
6nb/q1R1Q1r1/B1r2N2/q2BKQp1/3Bpn2/b3RBNb/2k3q1/3Rrnq1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 b3 a5 e2 h5 e1R a6 b4 a7 b2 h6 g3 h7 b3 Ra3 g2 Nf3 g1B Rh3 Nd7 Be2 Nb6 Ra1 Ba3 Nc3 b1Q+ Qc2 b2 Nh2 Qa2 Nb5 b1Q Bf1 Qbb2 Qb1 Qg2 Be3 Be6 Nc3 Rc8 a8B Qaf2 Be2 e4+ Kd2 d3 Nf1 d4 Qb5+ Nd5 Rd1 Kf6 f5 Ke5 Qb7 Nf4 f6 Bd7 Rf3 Bh3 f7 Qd5 f8Q Qa5 Ng3 Bh2 Qb2 Qfg1 Bd5 Qa7 Kc1 d2+ Kc2 d3+ Kb3 Qa5 Kc4 Qa7 Qb7 Qa5 Ra1 d1Q Qc5 Qc2 Rd1 d2 Bf2 Qb1 Re3 Qbb6 Bf3 Qba7 Qbb5 Re8 c8B Re6 Ba6 Rc6 Nh5 Bg3 Nf6 Bh2 Ne2 Bg3 Rb1 d1N Qb4 Nc3 Rc1 Nb1 Rd1 Nd2+ Kc3 Bh2 Ng3 Nf1 Kc4 Ne7 Kc3 Rg8 h8R Rg7 Rc8 Ng8 Rc7 Qb5 Kb3 Qa5 Qbb5 Nd3 Qe7+ Kd4 Ngh5 Be5 Ng3 Rc4 Qbd7 Rc6 Qf5 Qd2 Ka4 Kc3 Ka5 Kc2+ Kb5 Bc5 Kc4 Qa5 Bf7 Bb2 Kd5 Bba3 Be6 Nf4+ Ke5 Bcb4+ Bd5 Bd2 Rb3 Bc3+ Bd4 Nh5 Nd7 Ba1 Bb2 Rf7 Re3 Nf4 Bc3 Rc5 Kd6 B1b2 Bd2 Bd4 Bc3 Bh8 Bd4 Rg7 Ke5 Rc6 Nf6
nB6/r1r1N2Q/RbNQn3/Rb1p2R1/2kqpn2/q1nrR3/2q1B2K/3Q3b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Ke6 g4 Kd5 Kg2 b5 a4 e5 g5 h5 g6 h3+ Kh2 h4 f5 d3 f6 e3 c3 b3 a5 e4 f7 b2 g7 e2 a6 e1N a7 d2 Ra3 b4 Ra6 b3 Nf3 Nd3 Qe1 d1R Qe3 Bc5 f8R Ne7 g8R Nf4 Rg3 Bb6 Bd3 Nf5 Rg2 Rh7 Rgg8 Nd4 Qg1 Nde6 Be2 Rd3 Rg5+ Kc4 Qd1 d6 Rf1 Rc7 Nd4 Bd7 Re1 Bb5 Nc6 Nd7 Rff5 Qh8 Be3 Qd4 Re5 Rf8 a8Q Rf7 Qg8 Rh7 Kg1 Re7 Qh7 h2+ Kf2 h1B Kg1 h3 Kh2 Re8 Bf2 Ra8 Bg3 Raa7 Ref5 Ba4 Rfa5 Bb5 Ne7 d5 Na3+ Kc5 c4 b1N Nc2 b2 Nb4 Nc3 Nbc6 b1Q Rf1 Qc2 Rf3 Nb8 Re3 Nd7 Nd8 Kb4 c5 Kc4 c6 Bc5 Rf5 Nb6 Rh5 Na8 Rg5 Rcb7 c7 Bb6 c8Q+ Rc7 Qd7 Bc5 Ndc6 Bb6 Kg1 h2+ Kf2 Bf3 Qd6 h1Q Bh2 Bg2 Bg3 Qh3 Kg1 Bh1 Bh2 Qc5 Bg3 Qa3 Bh2 Qh6 Bg3 Qg7 Kh2 Qd4 Qh3 Rc8 Qd8 Ng6 Bb8 Ngf4 Qh7 Rcc7 Qd6
1Qn5/2n5/2Q1bK2/p1B2Bnr/R1rNRb2/1R3N1b/Qp2R3/1bqrqq1k b - - 0 1 illegal: No proof kernel
qB2Bq1q/3Q3r/3np1bR/n2r4/1N2b1Nn/pRR4r/5Q2/K1bBkBq1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 b4 Kg6 c4 Kg5 Kc2+ e3 Kb2 Kf4 g4 h5 f3 Kg3 g5 Kf2 f4 d5 f5 a5 c5 d3 g6 h3 g7 d2 b5 e2 c6 e1N c7 d4 b6 h2 b7 a3+ Ka2 d3 f6 h4 f7 h3 Qc2 a4 Qd1 Nf6 g8B Ng2 Qh5 d1R Bg5 d2 Bh6 Nc6 b8Q Nh4 Ba6 Na5 Qf3+ Ke1 Bf4 Ne4 Qa7 Bf5 c8B Bh6 f8R Bg6 Bd7 Nd6 Bb3 e6 Nc3 Rh7 Rc1 Qf6 Re8 Qf8 Ka1 a2 Nd5 Rc8 Nb4 Rc3 Rb8 Bg5 Bf1 Rd3 Kb2 a1Q+ Kc2 a3 Be8 Bh6 Qd7 Qah8 Kb1 Bg5 Ka2 Rd5 Rc7 Rb1 Rc4 d1Q Rc3 Qc1 Bc2 Rb3 Bd1 Qe3 Rb5 Qb6 Be5 Bc1 Ka1 Qa6 Qf6 Qa8 Nf3+ Kf2 Rg1 h1Q Nh2+ Ke1 Ng4 h2 Rgg3 Qg1 Rh3 h1B Rh2 Ndf5 Bb8 Be4 Qff7 Nd6 Rh3 Rd4 Rh5 Rd5 Rh6 Rb2 Rb3 Rh2+ Rhc3 Rh3 Qf2+
1b3qk1/n2b1RNq/3p1KBq/B1p3Nr/3QbN2/N5b1/nrn1r3/Q1B4R b - - 0 1 illegal: No proof kernel
3Qqn1r/3rR3/1qp3bp/n2k3n/2R1Br1N/1B1B3b/1b1B3n/QN3qRK b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 g4 Kd6 Kg2 b5 e4 f5 a4 h3+ Kh2 c6 d4 h6 g5 c3 d5 f3 a5 c2 g6 f2 g7 Nd7 Ra2 b3 a6 b4 a7 b2 Bb5 f1R Be3 c1N Nf3 f4 Nh4 f3 Nd2 b1B Bf2 b3 Ra4 b2 Rg1 Ngf6 g8B Nh5 Be1 f2 e5+ Kc5 d6 Bg6 e6 b1Q e7 Nb3 e8R Na5 Be6 Bg7 Bd3 Nf8 d7 Qbb6 Re7 Bb2 Bb3 Qe8 Rc4+ Kd5 Qa1 Rb8 a8B Rb7 d8Q+ Bd7 Kh1 h2 Nb1 Ra7 Bd2 Rc7 Kg2 h1N Bb7 N1g3 Qb8 Bc8 Kh2 Bh3 Bc8 Rb7 Bg4 Rd7 Bde2 Ne4 Qc7 Ng5 Qd8 Nf3+ Kh1 Nh2 Bf5 Rd1 Be3 Rd4 Bed3 f1Q Bd2 Rf4 Bfe4+
2Nrk2K/qN1N2R1/rpb5/7Q/q2nn1b1/b4nrr/NB1p2q1/R1Q2BQ1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 h5 Kf3 f5 c4 d5 a4 b3 g4 h3 e4 h4 c5 b6 e5 d3 e6 d4 a5 h2 g5 b2 g6 d2 g7 h3 c6 d3 a6 Nf6 g8Q Qc7 a7 Ne4 Qe2 d1Q e7 d2 Qg2 Qa4 Nc3 b1R Qb5 Rb3 Ke2 f3+ Kd3 f2 Bb2 f4 Nf3 Bg4 Ne5 f3 Rg1 h1B Nd7 h2 Qg5 Qb7 c7 Nc6 c8N Nd4 Ke3 Rh3 Kf4 Rb8 a8Q Qba7 Ke5 Ra3 Nc5 Rg3 Nb7 Ra2 Qh3 Bg2 Qh8 h1R Qgg7 Ra3 Na2 Rh4 Qgg8 Rhh3 Qc4 Bh1 Qc1 Bg2 Bd3 f1N Qh5+ Kd7 e8N f2 Ba6 Nh2 Bc4 f1Q Nf6+ Kc6 Nd7 Nhf3+ Kf4 Bc5 Bd3 Bh1 Bc4 Qg2 Bf1 Ne1 Ke5 Kc7 Na5 Kd8 Qc6 Ra8 Qcg6 Rad3 Qg7 Ba3 Qgg6 Qb7 Qg7 Ra6 Qgg6 Qa7 Qg7 Ng5 Kf6 Ne4+ Kf7 Nef3 Kg8 Ne1 Kh8 Nef3 Qh4+ Ke8 Nb7 Rc3 Qhh7 Rc6 Qg5 Rd6 Qhh5+ Rg6 Qe3 Qf2 Nc3 Ne5 Qh4 Bd1 Ndc5 Rd6 Ne2 Rg7 Qhh6 Rd8 Bc3 Ng5 Nd7 Bc6 Bb2 Ne4 Nc3 Rg5 Rg3 Qg2 Na2 Bh5 Qg1 Nef3 Rg4 Rg7 Rf4 Rg4 Rf7 Rgg3 Rg7 Bg4 Qh5+
3N1K2/rN6/bpq1rbQ1/N1B3nB/1RR2rp1/1q3B1k/3bQN1b/3nn1q1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 c4 Kf6 f4 Kf5 a4 d5 h4 e5 h5 g5 h6 g3 h7 e3+ Kd3 e4+ Kc2 d3+ Kb3 d2 a5 d4 c5 g2 Kc4 b3 c6 b2 a6 e2 c7 Kg4 a7 d3 f5 e3 f6 b6 f7 Nh6 Nh3 g1B Ra3 Bg7 f8N Qf6 Kd5 Ba6 c8N Nd7 Ne6 Bh2 Nd6 Rhf8 h8Q Nf7 Rb3 Nde5 Na3 b1Q Nd8 Nf3 Qh6 e1R Nac4 e2 Rb4 Qb3 Nf2+ Kg3 Qc2 d1Q Be3 d2 N6b7 g4 Qhg6 Qfc3 Ke6 N7g5+ Ke7 Rf4 Bc5 Bf6+ Kf8 Qdb1 Nca5 d1N Be7 Qc6 Bc5 Bg1 Rh7 Bh2 Re7 Qc1 Ree4 Qce3 Rec4 Qd4 Nd3 Qg1 Bg2 Kh4 Bh1 Kh3 Qd2 Rc8 a8B Rc7 Qe3 Re7 Qee4 Re6 Qe5 Rf1 Qee4 e1B Qe2 Bd2 Nf2+ Kg3 Bg2 Ne1 Be4 Kh4 Nh1 R1f3 Nf2 Re3 Bd5 Re7 Bf7 R3e6 Nd6 Ra7 Bb7 Qb5 Bf3 Qc6 N6b7 Kg3 Qgd3 Kh4 Bh5 Kg3 Qg6 Kh4 Ne4 Kh3 Nf2+
2kN4/bbnrnNp1/3r3r/1N5R/rQ2Qbn1/1N1q2q1/3QB2p/2R2KBq b - - 0 1 illegal: No proof kernel
1N1nr2r/1B1nn1pb/1pq4B/q1rR1BK1/R4NB1/3R2r1/qk2QQ2/1b2b3 b - - 0 1 illegal: No possible last move
3B1Q1q/NRb2p2/K1N1Nqq1/n5n1/Bb1RrQ2/2N1k3/brB1p2r/n1n5 b - - 0 1 illegal: No proof kernel
1rr4n/2Bp2nQ/1Qqb2k1/b2R1n2/B1bqBn2/p4q1Q/2N4B/2KRr2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 c4 f5 g4 Kf7 e4 h5 b4 f3 g5 h3 b5 h2 e5 a3 e6+ Kg6 e7 f2 c5 a4 b6 a2 c6 a3 b7 d3 c7 f4 Bh3 f1R Qf3 h4 Qd1 f3 Bb2 f2 Nc3 Nc6 b8B Ne5 e8B+ Nf7 Ba7 Ba6 c8Q Ne7 Qb8 Nd5 Qg4 Qf6 Qb6 Rc8 Nd1 Bc4 Qf3 Bd6 Be5 Nf4 Bb8 Re1 Be6 f1Q Kc1 h3 Bc7 Rb8 Qg2 Qf3 Ne2 Qg7 Rg1 h1Q Ng3 h2 Qh3 Qc6 Bd5 Qf3 Nh1 Qf6 Rb1 a1B Rb5 Bc3 Be6 Ba5 Rd5 Bdb4 Bed6 Qd4 Be5 Bd6 Rf1 Re4 Ne3 Rc8 Nc2 d2+ Kb1 d1N Kc1 Ne3 Rd1 Rb8 Bg4 Nf5 Bh5+ Kh7 g6+ Kh6 g7 Re1 g8Q Ng7 Qh7+ Kg5 Nf2 h1N Bg4 Ng3 Nh1 Rc8 Bf5 Rf8 Be4 Nh8 Bh5 N3f5 Bg6 Ng2 Bh2 Nf4 Nb4 Kf6 Bc2 Rb8 Ba4 Rfc8 Nc2 Nh4 Bd3 Nhf5 Be4 Kg5 Q7h4+ Kg6 Qh7+
1r1rb2N/2RpRQ2/r1n1p2q/qR2nB1q/nBb5/K1n3k1/B1B1Qb2/6N1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 a4 Kf5 c4 b5 Kc2 h5 Kb2 d3 a5 e3 c5 e2 g3 Kg4 a6 d2 c6 h3 c7 h4 f5 h2 a7 h3 f6 e6 f7 b3 Ra2 b4 Ra5 Bc5 f8R Na6 Qc2 e1N Rf7 d1B Re7 Bf2 Nd2 Nc5 Ndf3 Ba6 c8B Bc4 Ng5 Nf3 Bd3 Ne5 Rb5 Qa5 Ba6 Be2 Bd2 Na4+ Kc1 Rd8 a8B b2+ Kb1 Bf3 Bae4 Ra8 Bab7 Ra6 Bbd5 Bd1 Nf7 Bf3 Re8 Ne7 Bg6 Rf8 Nh8 N7c6 Re7 Rd8 Qd1 Be2 Bc2 Bf3 Qe1 Be4 Bh7 Bg6 Bc3 Be8 Bhf5+ Kh5 g4+ Kh4 g5 Kg3 g6 Raa8 Bce4 Ra6 Kc2 b1N g7 b3+ Kc1 b2+ Kc2 Bf1 Bb4 Nbc3 Kb3 b1R+ Ka3 Bc4 Bc2 Rb2 Qe2 Rb1 Nf3 Rb2 Rc1 h1Q Ng1 h2 Qh5 Qf3 g8Q+ Qg4 Qg7 h1Q Qgf7 Qgh4 Qe2 Qh5 Bb1 Qh6 Ba2 Q1h5 Bde4 Rd2 Bc2 Rd5 Rb7 Rb5 Rc7 Rbb6 Rd1 Rb5 Rd5 Rbb8 Rb5
rR6/Npbnb2K/B1Q2Q2/1rr1B3/1q1nQNb1/Q1q4p/3b2RN/2k1n2q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 g4 Kd5 a4 Kc4 g5 h5 g6 e5 c3 d5 f5 b3 a5 h3 a6 d3+ Ke3 h2 f6 b2 f7 d4+ Kf2 e3+ Kf3 e2 Ke4 e1B g7 h4 a7 h3 Ra2 Bg4 Bh6 Qh4 Be3 Rh5 Ne2 d2 Bh6 d3 Rg1 h1Q+ Rg2 Nd7 Qc1 Kb3 c4 d1N c5 d2 c6 Ne7 g8Q Bg3 c7 Nf5 c8N Nde3 Bf4 d1Q Qg6 Nd4 Qcc6 Be7 f8Q Qd2 Qff6 Qc3 Nd2+ Kc2 Nf3 Kd1 Qh7 b1R Nh2 Nec2 Qhg6 Ne1 Qe8 Rb8 a8Q Rb5 Qa3 Ra8 Na7 Rg5 Nc1 Rc5 Ba6 Rb5 Nd3 Rh5 Ke3 e4 Rac2 Rhc5 Be5 Bf2+ Kf4 e3 Ke4 e2 Nf4 Bg3 Qeg6 Nd3 Qgf5 e1B Q5e6 Bd2 Qc4 Ne1 Qcb4 Ndf3 Qd4 Bh5 Kf5 Bg4+ Kg6 Bf5+ Kg7 Bg4 Qde4 Nd4 Rb2 Kc1 Rb3+ Qb2 Rf3 Qh8+ Kg6 Qc8 Kh7 Qf8 Qa4 Qc3 Qa3+ Kd1 Nh5 Rd5 Qh8 Beg5 Bb8 Qfb4 Rf8 Be7 Qhf6 Rdc5 Bc7 Bgd6 Nf4 Be5 Rb8 B5d6 Qa5 Kc1 Qa4 Bd8 Qa2 B6e7 Be5 Bc7 Qa3+
2q1k2n/1p1rQ2b/R1r1qb2/3Q2R1/5n2/1pnRqNB1/4r3/bBNqNKN1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 g5 a4 f5 e4 d5 c4 d3 c5 d2+ Ke2 g3 e5 b3 c6 f3+ Kd3 f4 a5 d4 a6 f2 Ke2 g4 a7 f3+ Kd3 g2 e6 g3 e7 Nh6 c7 Bf5+ Kc4 d3 c8N Bg7 h5 Nf7 h6 Bf6 h7 Nc6 Na3 Nd4 Nc2 Ne6 Ra6 Nf4 Ne1 Qd7 Be2 f1R Rh3 f2 Nb6 Rd8 a8R Qe6+ Nd5 Bg6 R8a7 Rd7 Bf3 Rf8 h8N Bh7 Ng6 Nh8 Be4 Rg8 Nh4 Rg6 Qh5 d1N Nhf3 d2 Bb1 Nc3 Ra5 d1Q R7a6 Qc2 Qe5 Rh6 Kd4 Qcf5 Ke3 Qg4 Nb4 Qgf5 Ne2 g1B Na2 g2 Bd2 Bh2 Nac1 g1Q Qe4 Qfg4 Rg5 Q1g3 Qe5 Rh1 Qe4 f1Q Ng1 Qgf5 Qe5 Qc2 Qe4 Qfc4 Qe5 Qd1 Qe4 Qc8 Qe5 Qgg4 Kf2 Qg3+ Kf1 Rg6 Qd5 Rh6 Nh4 Qge3 Nf3 Bg3 Qa5 Bh4 Qd5 Rh2 Rhg3 Re2 Rh3 Ne4 Ba5 Ba1 Bc7 Nc3 Bb8 Nd3 Bg3 Nf4 Rh2 Ra2 Rd2 Rf6 Rd4 Re2 Rd3 Rg6 Rf5 Bf6 Rg5 Rh6 Ra8 Qg8 Qe4 Rh5 Rg7 Rc5 Ra6 Rc6 Rg5 Qe6 Qd5 Kf7 Rf5 Kg8 e8Q+ Kg7 Qe7+ Kg8 Qb4 Kf7 Rg5 Ke8 Qe7+
3Q1QRk/2q1rb2/1B3B2/Q2rN1K1/nbp5/4n2B/n2pnnRn/1rbN1Q2 b - - 0 1 illegal: No possible last move
3BN1B1/4Rq2/rQ1Rbn1Q/pbK2N2/kr1N1bN1/4nr1b/p2b4/2b3Rn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 d5+ Kb5 Kd7 e4 a5 b4 g3 h4 g4 c4 g2 h5 a3 e5 a2 c5 d3 h6 d4 h7 f3 Rh3 f2 Be2 f1B Rh2 f4 Nf3 g1B Qd2 g3 Rh1 g2 Ne1 f3 Ba3 f2 Rh2 Bd6 Bd1 Qc7 Rh1 Ne7 Nc2 Nd5 Rh6 Ra6 Nc3 Ne3 Ne2 Rf8 h8R Rf3 Re8 Bh2 Rb1 g1B Rg6 Qa7 e6+ Kc7 c6 Bdf4 e7 Nd7 Bb2 Bh3 Rd6 Nf6 Rc1 Qb7+ Kc5 f1B b5 Bce6 Ra1 Bf2 Qc1 d2 Bc3 d3 Ned4 Ned5 Ne3 Be1 Ng4 Ne3 Bb3 d1N Bb2 d2 Rb1 Bf5 Bg8 Nf2 Bc3 d1R Ba1 Bc8 b6+ Kb8 Qd2 Nh1 c7+ Ka8 Qc1 Bb5 Bc3 Bd2 Ra1 Qb8 b7+ Ka7 Rb1 Be6 Bb2 Rb6 c8N+ Ka6 Bc3 Qa7 b8Q Bg5 Qc7 Rg1 Qc6 Qd7 Qb2 Rg2 Rg1 Bhf4 Qb1 Bh6 Qg6 Bhg5 Qh6 Bc1 Be1 Rb2 Bh4 Qb7 Rf8 Rb4 e8N Qf7 Ne7 Bd2 Nef5 Bc1 Rg2 Bbc4 Rc2 Ned5 Qh8 Be5 Rd2 Nh5 Rg2 Bgd2 Bd8 Nhf6 Qh6 Ne3 Neg7 Bf4 Re8 Be2 Qc7 B2c4 Re7 Bd3 Ne8 Be2 Nc2 B2c4 Kd4 Kb5 Rg1 Ka4 Kc5 Ra6 Qb6 Bb5 Ncd4
qr1R3R/RN1R2Kp/1r4pr/2kN2rr/1bb3r1/2n2bB1/2BQ1n2/Q1B2n2 b - - 0 1 illegal: No proof kernel
2b1BN1K/pRN4p/2q1nBr1/2k1r2Q/1RQ1nnb1/2N1N3/5nnB/1n2br2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ba6 g4 Ke7 c4 Kd6 Kd3 f5 b4 h3 e4 a3 b5 h2 b6 f3 b7 f2 g5 f4 g6 f3 g7 a2 Qe1 Nc6 b8B+ Qc7 Be3 Nd8 Bd2 Nf6 g8N Nh5 Nf6 Rg8 Bg5 Rg6 e5+ Kc6 Ke4 d5+ Kf5 d3 e6 d4 e7 d2 e8N d1N c5 d3 Qe7 d2 Ne2 Nc3 Nd7 d1B Qe5 Ne4 Nf4 Be7 Bh3 f1N Ng2 f2 Nf8 Nfd2 Ne3 Bf3 Rc1 f1R Rc4 h1N Ra4 Kb5 c6+ Kb6 Rd4 Bb4 Qh2 Qd6 c7 Nhf2 c8Q Qc7 Qe6+ Qc6 Bbf4 Kc5 Nc7 Ba5 Qg8 Bc3 Ke5 Bfe2 Bd7 Bg4 Qh3 Bb7 Bh2 Rc8 Nb5 Rc7 Be8 Bbc8 Qe6 Re7 Nc7 Nhf6 Qh5 Nd5 Na3 Bb4 Rb1 a1N Nab5 Nc2 Rb3 Nb1 Rb2 Bd2 Nc3 Nf4 Rb7 Ne1 Rdb4 Neg2 Bh4 Rg8 Bg5 Be1 Bh4 Nd6 Kf6+ Rg5 Qg8 Ree5 Qa2 Nde6 Qa6 Nf5 Qa2 Ng3 Qc4+ Kd6 Kf7 Rg6 Bg5 Nge4 Bf6 Ng7 Kg8 Nge6+ Kh8 N4h3 Qb5 Nhf4 Qd3+ Kc5 Qc4+
kB3K2/2N1pnRQ/n1N2pb1/N1Qn1n1R/5qBq/2n3b1/rn1n3r/1R3R2 b - - 0 1 illegal: No proof kernel
3n1r2/Q2NnbNk/B2b4/1Qr1rb2/B3bK2/Q3R2B/Rb1ppB2/q2q1b2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 g4 e5 c4 d5 a4 b5 a5 h5 g5 d3 Ke3 h3 a6 d4+ Kd2 b3 a7 h4 f5+ Kh7 c5 e3+ Ke1 h2 f6 h3 c6 d2+ Ke2 e4 c7 b4 f7 b2 Ra3 b3 Bg2 d3+ Kf1 e2+ Kf2 e1B+ Ke3 Nc6 Ra1 Ba6 c8B Qf6 Na3 b1B Ne2 b2 Ra2 Nd8 Nf4 Ne7 Qa4 d1Q Nh5 Bc3 Re1 h1B Qb5 h2 Ng7 d2 Bgh3 Bd3 Nc4 b1B Nb6 Bb2 Nd7 Bf1 Bb7 Rb8 a8Q Rc8 Qa7 Rc5 Bc8 Qc3+ Kf4 e3 Re2 Bf5 g6+ Kh6 Re1 Bhe4 Bb7 h1R Bc8 Ba1 Ba3 Bb2 Re2 Re5 Bc5 Bab7 Bd4 Bbd5 Ba6 Rg1 Bb6 Rg5 Bc5 Qcc1 Bd4 Qa1 Bc5 Nc8 Bb6 Bd6 f8Q Bf7 Re1 Bb8 Qa3 Rf8 Ne8 B5e6 g7 Ne7 Qe2 Bd6 Qb5 Rg3 Re2 B6f5 g8B B7e6 Bf7 Kh7 Ng7 B6d5 Rf2 e2 Rf3 Bb3 Bf2 Bc4 Rb3 Rc3 Be6 Rc2 Re3 Bb3 Bf7 Rc7 Bc4 Rcc5 Bd3 Bg8 Bc2 Bf7 Ba4
q3b3/QBQQ2BN/2qbnKn1/5R2/Nb2rRb1/1r2p1kp/1r1N4/3b2bN b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 h5 Kg5 Ke5 g4 c5 a4 b5 a5 b3 d3 h3 a6 h4 f3 h2 a7 h3 Ne2 b4 Ng1 b2 Be3 c3 Qb3 c4 Na3 b1R Qd1 c2 Bc1 e3 Bg2 c3 Bb2 c1B Nb5 b3 Ra4 e2+ Rf4 e1B Qc2 Nd7 d4+ Kd5 Qd3 Rb8 a8Q+ Rb7 Qd2 c2 Qa7 Rh4 Nc3+ Ke6 d5+ Ke5 d6 Nc5 d7 Ne6+ Kg6 Rb5 Qd3 Be3 g5 c1Q Na4+ Bd4 Qc2 Bb4 Qcc7+ Bd6 Kf7 Qc6 g6 Rb4 Ba1 b2 g7 Rb3 Kg6 Bb7 Kf7 Qa8 d8Q Bc8 Qdd7 Bc5 Rb4 Kf5 f4 Kg4 f5+ Kg3 f6 Re4 Nf3 Be3 Rf1 h1B Nd2 Bg1 Bf3 Bg2 Rf2 Bf1 Rb5 Be2 Rf5 Bd1 Kg6 Rb5 f7 Rb3 Qdd8 Bd7 Rf4 Be8 Qdd7 Nf6 g8N Ng4 Kf5 Ne5 Nh6 Ng6 Bg2 Rc1 Rf1 b1B Ng4 Rc2 Bg7 Rcb2 Nf2 Bd3 Bh1 B3e2 Bf3 Nc5 Kg5 e5 Kf6 Ne6 Bg2 Bb4 Bf3 Bfc5 f8N Bd6 Bg2 Bg4 Nh7 Rd4 Rf5 e4 Bh1 e3 Bd5 Qc1 Bb7 Rf4 Nd3 Rc4 R1f4 Re4 Nf2 Qc6 Nh1+
5rr1/rn2B1b1/1k1r4/B3N3/q1Rrp1R1/1b2r1BB/n3NQpQ/1q1nKQ2 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 g5 h4 b5 f4 e5 c4 d5 h5 Kd7 h6 Kc7 c5 e3 h7 b3 f5 d3 c6 e4 f6 e2 a5 d2+ Kf2 e1R a6 b2 a7 d4 f7 b4 Nf3 b3 Ra6 d3 Ne5 g3+ Kg2 g4 Na3 b1Q Ng6 b2 Nh4 Bg7 f8B Re3 Rh3 Nh6 Be7 Nf7 Nc2 Rf8 h8B Qd7 Ra4 Kb6 c7 Nd8 Ng6 Nb7 Nd4 Na6 Ne2 Nb4 Rh4 Na2 Rc4 Qa4 Ne5 Be6 c8Q Bf7 Kg1 g2 Kf2 g1R Bh3 Rgg3 Qc2 d1R Qf5 d2 Qf4 Rad8 a8Q Rd4 Qb8 Rd6 Rc5 Bb3 Rc4 Qa1 Qf5 b1R Ba3 Qb2 Bb4 Ra1 Qc1 Qb1 Qf7 Rh1 Qf1 d1N+ Ke1 Rgg1 Qf3 g3 Rg4 Rh2 Qf2 Rd4 Bg2 Rh6 Bh3 Rhd6 Bc3 Bh6 Bhf6 Bg7 Bh4 g2 Bg3 Rh1 Rh4 Rg8 Bc8 Rf8 Rg4 Rhh8 Be6 Rhg8 Ba5+ Kb5 Rg5 Ka6 Bh3 Kb5 Rg4 Ka6 Bd2 Kb6 Qe8 Nc1 Qh5 Qd7 Qh4 Ra7 Ba5+ Kb5 Qh6 Na2 Qhf4 Ka6 Bgh4 Qa4 Qh2 Kb5 Bg3 Ka6 Bc3 Kb6 Ba5+
6bR/2r3B1/Brk3Q1/3rbRRr/1npb1pK1/NbR3nr/Q7/n1N1q2B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 h5 e4 b5 d4 f5 g4 c5 a4 b3 d5 b2 g5 c3 e5 h3 a5 h4 d6 c4 g6 h2 e6+ Kc6 e7 h3 e8R b4 g7 c2 d7 b3 a6 Rh7 a7 Bd6 Re6 Ne7 g8B Na6 Re2 Be5 Qd2 Qe8 d8Q Be6 Bg2 Nc5 Qe3 Nd5 Na3 b1R Qc3 b2 Ra2 Rc7 Re1 Nb4 Qc8 Nb3 Rf1 Na1 Be3 c1B Bf2 Be3 Qc2 B3d4 Ne2 Qe7 Qf8 Rd8 a8R Rd5 Rhg1 h1R Nc1 h2 Qg7 Bf7 Bh7 Bg8 Be1 Qh4 Bc3 Qe1 Bh3 Rb7 Rg5 Ra7 Bg4 Rc7 Kg2 f3+ Kh3 f2 Qg6+ Be6 Rh8 f4 Rg1 f1N Rf5 Ng3 Bf3 Ne2 Rg5 Ng3 Bg2 Qf1 Kg4 Qe1 Qg7 Bg8 Be4 Rf1 Bh1 Rf3 Bg6 Rd3 Bf7 Re3 Be6 Rd3 Bc8 Rf3 Bg2 h1R Ba6 Rh5 Qf7 Ne4 Bh1 Rfh3 Qf2 Ng3 Nd3 Rd1 Nc1 b1B Rc2 Ba2 Qd2 Bb3 Qg6+ Kd7 Qf2 Rd6 Bb2 Rb6 Rc3 Be3 Na2 Bd6 Rc1 Rd5 Bg7 Kc6 Rc3 Bc5 Nc1 Bd4 Qf7 B6e5 Qa2 Rh7 Qh5 Rh6 Qf7 R6h5 Qg6+
2Rn4/bNqQ1B1K/1r6/QB1pNBB1/1n4n1/1k2q2p/1nr1b2n/N3bnR1 b - - 0 1 illegal: No possible last move
3Q1K1b/3R4/n2r1Nr1/p4RRb/r1N5/1rq1npR1/rq2rn1N/1kB2B1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 Ke4 g4 f5 b5 h5 g5 d3 c3 f3 g6 d2 b6 d5+ Kb5 h3 e3 d4 g7 h2 b7 d3 c4 f2 c5 h4 c6 a3 c7 h3 Kc4 a2 Qc2 d1R Be2 f1N Nf3 f4 Nh4 f3 Qc3 d2 Rg1 h1R Rg6 h2 Rg1 Na6 b8R Bg4 c8Q Re1 Rb7 d1R Rg3 Qb6 Ng2 Rg1 Na3 h1R Rd7 R8h2 Qd8 Nh6 g8R Rd6 Qh8 Bh5 R8g5 Bg7 Rb1 a1Q Rbb5 Rb8 Rbf5 Ng4 Qh6 Qbb2 Qh7 Nc7 Kc5 a5 Nc4 Nf2 Qhh8 Rb3 Qh7 Nd2 Bf1 Re2 Qhh8 Kd3 e4 Kc2 e5 Rh4 e6 Kb1 e7 R1h2 e8N Rg4 Qh6 Bh8 Nge3 Qc3 Nf6 Qab2 Qh7 Re4 Neg4 Red4 Bg2 Nf1 Bh3 Ne3 Bf1 Rdd2 Qh6 Rh4 Nh2 Rg2 Ne8 Rg6 Nf6 Na6+ Kc6 Nd3 Kd6 Nf2+ Ke7 Rd6 Kf8 Rf4 Nb6 Ra4 Nc4 Ra2 Rh3 Rg4 Rg3 Re4 Ne5 Rea4 Nc4 Bg4 Qh4 Bh5 Qh3 Bg4 Qg2 Bh5 Qh1
1bk1Qr1r/2bb4/n3NQpq/4r3/3Q2K1/Bn2BBRn/Rp1r2Nr/1n5B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 h4 Kd7 a4 b5 e4 f5 c4 g6 e5 b3 c5 d3 a5 d4 h5 b4 a6 d2 a7 d3 h6 f3 Kg3 f2 h7 f4+ Kg2 b2 Rh2 f3+ Kg3 b3 Ra2 Qg5 Nc3 b1N Nh3 b2 Nd5 Qh6 Ne3 Ne7 Qa4+ Nec6 Nd1 Bd6 Qf4 Bc7 Be2 f1R Rg2 f2 Ng5 Re1 Qf6 f1R Ne6 Rf2 Bf3 Nd4 Ne3 d1N Rg1 d2 Ng2 Rf8 h8B Nb3 Bg7 Rh8 Bf8 Na6 Bd6 Rfe2 Be7 Nf2 Bd6 d1R Be3 Rb8 a8B Nh3 Bab7 Rdd2 c6+ Ke8 Ba3 Bd7 Ba8 Rc8 Bb7 Bb8 c7 Rf8 Nh4 Rh2 Ng2 Rd8 c8Q Rh8 Nef4 Rf8 e6 Bc7 Bec5 Re5 Be3 Bb8 Qc3 Rc8 Qg7 Kd8 Qd4 Kc7 e7 Rcd8 Ba8 Kc8 Qf6 Rh8 Ne6 Rdf8 Ngf4 Bc7 Bh1 Bb8 Baf3 Bc7 Nh5 Bb8 Kh4 g3 Kg4 g2 Nf4 Bc7 Rd1 g1B Ng2 Bf2 Rg1 Bg3 Nh4 Bf4 Rg3 Rh5 Ng2 Bfd6 Qd5 Re5 Qe4 Bb8 Qd4 Bdc7 e8Q+
B3N2b/3qq3/Kn2kpb1/1nQbr2N/Q1pr2R1/1RB1N1r1/Q3N1rr/4r3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 c5 Ke2 h5 d4 b5 g4 f3+ Ke3 h3 d5 f6 a5 h2 a6 h4 d6 h3 g5 c3 Kd3 c2 g6 f2 e5 b3 g7 c4+ Kc3 b2 Kb4 Nh6 g8Q Bb7 a7 Bd5 Be3 c1R Qe1 Rc3 Qd1 Nf7 Ne2 Ke6 Bd4 Qe7 Ka5 b4 d7 b3 d8Q Nd7 Ra3 Rh5 Qd2 Rg3 Qgg5 Bg7 Rg1 h1R Qe8 h2 Bg2 f1R Bc3 Nd6 Ka6 Rd8 a8N Bh8 Nb6 Nb5 Bf3 Rg2 Ng3 Re1 Qge3 Rh3 Nh5 Rhg3 Qc5 Re4 Qg6 Rd4 Qgc2 Re8 Qe2 Rf2 Rg2 Re1 Qcd1 h1R Qec2 Rgh3 Rg4 Rg2 Qce2 Rhg3 Be4 Ba8 Nd5 Nb6 Ne3 Rhh2 Bf3 Be4 Qdc2 Bg6 Ba8 Be4 Ba5 Bg6 Nc3 b1B Qf2 b2 Rb3 Be4 Ne2 Bd5 Bc3 Qd7 Qd1 Bg6 Qc2 b1Q Qa2 Kf7 Qa4 Qe4 e6+ Kg8 e7 Kf7 Qa1 Ke6 Qa2 Rc8 Qb4 Rc5 e8N Qe5 Qba4 Qed6 Qb2 Q6e7 Qg1 Bf3 Qba2 Re5 Nd1 Bd5 Qe3 Rde4 Qc5 Rd4 Ne3
3Qn2K/1nBQ3n/1N2p3/Rqn1QQ2/N5q1/1n3pRq/3r1k2/n1bBrR1b b - - 0 1 illegal: No proof kernel
3nN3/B1rbQ3/p1nRr3/k1NN2pB/1b2b3/bK1B1rR1/BnQq2n1/2b5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 c4 d5 Kc2 Kd7 b4 Kc6 h4 Kb6 e4 g5 h5 a3 h6 a6 h7 g3 b5 f3 c5+ Ka5 e5 a2 b6 f2 e6 d3+ Kb3 f4 b7 f3 e7 g2 e8B d4 c6 d2 c7 d3 Bd7 Bb4 Be8 Bd7 c8B Ne7 Ne2 g1B Rh2 Ra7 Kb2 Nbc6 b8Q Rc7 Qc2 d1N+ Kb3 d2 Qa7 Nb2 Ng3 d1B Bh5 Re8 Bd3 f1R h8N f2 Ne4 Bf3 Nc5 Be4 Nc3 Ba3 Rb1 a1B Rg2 Bh2 Nf7 Bf4 Nd5 Bd6 Na4 Bdb4 Rg3 Bdf5 Ne3 Ne5 Bc4 Rc5 Nh6 Nbd3 Nhg4 Nf7 B8e6 B1b2 Nf6 Bg4 Qd7 Rc7 Ka2 Nc6 Qd6 Ree7 Ne8 Qd7 Bd2 Nfd8 Rd1 Bc1 Bg8 Re5 Qe7 Nb2 Bc3 Qd5 Bd4 Bd7 Ba7 Qd4 Bgd5 Re6 Nc5 Qc3 Rd3 Qd2 Rd4 Rd1 Bb5 f1N Bd3 Re1 B5c4 Re2 Rd6 Rf2 Nd5 Rf3 Ka1 Ne3 Ba2 Nbd1 Bb1 Ng2 Ka2 Nb2 Kb3 Qe3 Ba2 Qf4 Bb1 Qd2 Ba2
4nbbq/1r5p/b1B1p3/N3QB2/bQB3qr/K4bRk/NR1Bb1N1/n3r3 b - - 0 1 illegal: No possible last move
NKB4n/1R1q1bp1/Q2rRB1R/1Q2qq2/qq1n2k1/2b4p/1Nq2B1r/5Bn1 b - - 0 1 illegal: No proof kernel
NNrb2bR/1B2p2b/3Br1r1/4p1QB/qQ2R3/1r4Nn/4B2K/qk1rr1n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 d4 gxh4 e5 c5 e6 cxd4 Bd3 fxe6 Bf1 e5 a4 Kf7 c4 Kf6 g4 h5 f4 b5 Kf2 d5 Kg2 d3 f5 b3 c5 d4 c6 b2 c7 d2 a5 d3 a6 b4 a7 b3 Ra2 h3+ Kh2 h4 Qc2 d1Q Ra4 d2 Ra5 Rh6 Bg2 Be6 c8B Nc6 Ra1 Qd7 Bf3 Nd4 Bg2 Ne2 Nf3 Qa4 Qc4 Rg6 Bf1 Bh6 Qc3 Ng1 Qc4 Be3 Qc6 Bb6 Bfa6 Bd8 Be2 Nh6 Qd6 Nf7 Qb4 Ng5 Nd4 Bg8 Bb7 Rc8 Nc3 b1B a8N b2 Nc6 Qe1 Ra2 d1R Nb8 Bc2 Ra1 b1R Ba3 Rb3 Rc1 Qf1 Ra1 Rd6 Re1 Re6 Ne4+ Kg7 Ng3 Kf6 Ra1 Qe1 Ra2 Qa1 Rb2 Bb1 Rd2 Be4 Rd4 Rg7 Qb5 Bf7 Bd6 Bd3 Qb4 Bb1 Bea6 Ne2 Bc4 Nc3 Kg1 h2+ Kg2 Ne2 Rf1 h1R Rff4 Rc1 Rd1 Bd3 Rh1 Rd1 Rd4 Ne4 Bb5 Nf2 Rc4 Kg5 f6 Kg6 g5 Bg8 f7 h3+ Kf3 h2 Kg2 Bf5 f8Q Bd3 Rh4 Bc2 Re1 h1R Qff4 Nh3 Rh8 Rf1 Qc1 Neg1 Kh2 Bb1 Re3 Rfe1 Be2 Be4 Nh1 Kf5 g6 Bf7 Qcd2 Rg8 g7 Kf4 Bc4 Bh7 Qc1 Kf5 Ng3+ Kf4 Re4+ Kf3 Qg5 Kf2 Rf4+ Ke3 Qb6+ Kd2 Re4+ Kc2 Qb4 Kb1 Be2 Rf8 Bh5 Bfg8 Be2 Rg6 Bh5 Rff1 Be2 Rff6 Bh5 Be6 g8B Bd5 Be6 Bc4 Bd7 Bcg8 Bb5 Re6 Bbe2
nnN1k3/2np1RKQ/1R6/2b2b2/r1r3pr/r4BB1/BQ3Bbr/q2N1N1b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g3 Kd3 b5 Ke4 f5+ Ke5 g5 c4 f3 e4 b3 a4 g2 h4 g4 a5 f4 c5 b2 c6 f2 c7 b4 h5 b3 a6 d3 h6 f3 h7 d2 a7 Bc5 Qe1 d1N Nh3 g1R Bg5 Nf6 Bc1 Kf8 Qe2 Ne8 Be3 Nc3 Ra6 Nd5 Nd2 Bb7 c8N Qa5 Rb6 b1R Kf5 b2 Kg6 Rg3 e5 Qc3 e6 Rc1 Kh6 b1B e7+ Kf7 Qb5 Be4 Bc4 f1B Ba2 Qa1 Nf2 Rc4 Nd1 f2 Qb2 Bb1 Bf4 Ra3 Bg3 Bc6 Rh4 Bf5 Rh5 Bh3 Rg5 f1R Rg7+ Ke6 Bf2 Rh1 Nf1 Rh2 Bg3 Rf8 h8B Rg8 Rg6+ Kf7 Bd4 Rg7 Bdf2 Rh7+ Kg5 Rh4 Rh6 Nf4 Rh5 Bh1 Kh6 Be6 Kh7 B3g2 Kh8 Nd5 Rh7+ Kg6 Rb4 Nec7 e8Q+ Bf7 Qd8 Nb6 Qe7 Bfd5 Rb3 Bde4 Qeg7+ Kf5 Kg8 Ke6 Qh8 Bf5 Rf7 Nb5 Qh7 Nc7 Nd6 Bf3 Kg7 Bfg2 Rf6+ Ke7 Nc8+ Ke8 Rf7 Nba6 Qh6 Rb8 Qh7 Nba8 Rb4 Rb5 Rb3 Rba5 Rb6 R5a4 Rb5 Nb6 a8B Nb8 Bf3 Nba8 Rb6
2NR4/rR1p2r1/1qnn1r2/QBb1p1Q1/B3rBr1/5b2/1k1QQnN1/1b3Kb1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 f4 Kf6 a4 h5 c4 b5 f5 Ke5 c5 b3 g5 d3 f6 Kd4 c6 e5 f7 b4 g6 d2+ Kf2 h3 a5 b2 g7 h4 a6 h2 a7 e3+ Kg2 e2 c7 e1B Qa4 d1N Bc4 b3 Nd2 Kc3 Nf1 b1R Bf4 b2 Ba6 Nf6 g8Q Nf2 Nd2 h3+ Kf1 Rh4 Ngf3 Rg4 Nh4 Bb7 c8Q+ Bc5 f8Q N6e4 Nc4 Nd6 Qg5 Bf3 Nb6 Nc6 Qa5+ Kb3 Rg1 h1R Bb5 h2 Qca6 Kc2 Nc8 Qb6 Ra2 Rc1 Ra1 b1B Ng2 Kb2 Qfh6 Rc4 Ra3 Re4 Ra4 Rb8 a8B Rb7 Rc4 Ra7 Rc3 Bd2 Rb3+ Kc1 Rb2 Bde3 Rb4 Nd8 Bd5 Nc6 Bb3 Kb2 Be2 Qc7 Rb7 Qb6 Bc2 Bed4 Bb5 Be3 Qe1 Bed4 Qe2 Be3 Ke1 Bed4 Rf1 Rg1 Qa5 h1R Qh2 Nc4 Qhh6 Rhh4 Qd6 Rh6 Qd5 Be3 Qdd3 Nd6 Qdd2 Rgh1 Rg1 Rf6 Kf1 Rh7 Rh1 Rg7 Rh8 Nh3 Re8 Bg1 Rd8 Nf2 Bca4+
1nRr2q1/2p1b1Bq/qBn1bb1B/Nb3QRN/7Q/4bb1K/2p2r2/N3kB2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 e4 Ke5 h4 Kd4 a4 b5 h5 f5 d3 g5 a5 f3+ Kh2 f2 e5 c3 a6 g3+ Kh3 g4+ Kg2 b3 h6 f4 a7 b2 e6 b4 h7 b3 e7 Be6 e8N Ne7 Ng7 Nec6 Ra2 Be7 Qe1 Rf8 Nd2 b1Q h8B b2 Ne2+ Ke3 d4 Qh7 d5 b1B d6 c2 Ra4 Bba2 d7 Bad5+ Re4+ Kd3 Rh5 Bf6 Nc4 f3+ Kh1 g2+ Kh2 Be7 Be3 g1B+ Kg3 Rf4 Bb6 Qdg8 d8B Rf6 Kh4 g3 Na5 g2 Re5 Bh2 Rg5 g1B Qb4 Rf5 Kh3 Be5 Qh4 Kd2 Nc1 B5f6 Ncb3+ Ke1 Na1 Be4 Rg3 B4d5 Rhg5 Be4 Nh5 B4d5 Bg2 f1B Bg7 Bb5 Bf1 f2 Rd3 Bf3 Rd2 Na6 Rd7 Rc8 a8Q Nab8 Rd2 Bf8 Be7 Rd8 Ba3 B8e7 Bc1 Bh2 Qb7 Bf4 Qc8 Be3 Rd7 Bb4 Rf7 Bbe7 Rf8 Kd1 Bg2 f1Q Qd7+ Qd3 Qd5 Rf4+ Qf5 Qc4 Bf1 Qa4 Ng3 Ke1 Nh5+ Bf2 Qfg4 Be4 Nb7 Rd6 Qf5 Qa6 Rc8 Rd8 Rg3 Bfc5 Rg4+ Rf2 Bch6 Be3 Na5 Bf3 Rg5
Q3K3/1nBN3R/1r2bkN1/1Rr4q/1b2b3/Q1pq1B1p/2rnN1b1/1b1NrB2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 c5 Ke4 h5 Ke5 f5 d4 b5 a4 b3 e4 b2 g4 f3 d5 f4 a5 c3 a6 f2 a7 c2 g5 f3 g6 c4 g7 h3 Bg5+ Nf6 g8B c1R Qe1 c3 Ra6 b4 Na3 b1B Rb6 h2 Rb5 h4 Bf4 b3 Ne2 b2 Nc4 Rh6 Ne3 Be6 Nd1 Na6 Bh7 Kf7 d6 Rc8 a8Q Nc5 d7 Rc2 Bf5 Be7 Bg4 Nb7 Qd2 Ba3 Qd6 Bb4 Qda6 Qh8 d8N+ Kg7 Qa3 Rc5+ Kd4 Qh7 e5 Ne4 Nc6 Nd2 Ne7 Rf6 Ng6 Qh5 Rg1 h1B Rg2 Rf5 Rh2 Bg2 Bg3 Rf6 Rh1 Bd5 e6 Bda2 e7 Rb6 Bd6 Kf6 Bc7 Bd5 Rh3 Bba2 Rh2 b1B Rh1 Be4 e8N+ Kf7 Nf6 Be6 Nd7 Kg7 Ng3 Kf7 Bd3 f1R Ne2 f2 Bf3 Re1 Rh2 B6d5 Rh3 Ke6 Rh1 Kf5 Bc4 Kg5 Ke5 f1Q Rh2 Bc6+ Ke6 Bcd5+ Ke7 Be6 Ke8 Kf5 Nf4 Qd3 Rh3 Qd4 Bf1 Qd3 Rg3 h3 Ne2 Rd6 Rg4 Rc6 Rf4+ Kg5 Rf7 Rb6 Rh7 Kf5 Ne5 Kf6 Nd7+
1R1Rb2r/Q2B2bq/bq2q1N1/1qQ1n3/2NQ1N1p/K1Nrb3/1B1n1p2/2k2b2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 d4 Ke6 Kd2 Kf5 Kc2 Ke4 Kb2 c5 g4 f5 d5 h5 e3 b5 g5 c3+ Kb3 h3 a5 h2 a6 c2 a7 h4 g6 f3 d6 f4 d7 f2 g7 c4+ Kb2 b3 Ne2 b4 Ra2 c3+ Ka1 f3 Rb2 Qb6 d8Q Ba6 Qc8 Nd7 Ng1 Ngf6 g8N Bg7 Qf8 Rd8 Ne7 Ne5 Nh3 Rd3 Nf4 Qb5 Bd2 c1Q Bh3 f1B Bd7 c2 Bc3 f2 Neg6 Qd2 a8N c1B Nb6 Qe2 Nc4 Qe1 Rg1 h1B Qc5 Bhg2 Rd2 b2+ Ka2 b3+ Ka3 Bf3 Bd4 Bh5 Qa7 Qe2 Nc3+ Kf3 e4 b1Q+ Rb2 Be3 Rd2 b2 Qa4 Neg4 e5 Ne4 e6 Ne5 e7 Qee1 Rd1 Nd2 e8Q Qc2 Rg5 b1Q Qe7 Qb6 Qc5 Q1b5 Nf8 Be8 N8g6 Nc6 Rd5 Ne5 Rb1 Qe2 Rb3 Qe1 Nb1 Qe2 Ba1 Ke4 Qab4 Qg4 Qc3 Qge6 Q3d4+ Kf3 Ng2 Ke2 N2f4+ Kd1 Nc3+ Kc1 Rb4 Qc7 Rb2 Qbc6 Rb8 Q7b6 Bc8 Qcb1 Rd8 Qe4 Bd7 Q1b5 Qcd6 Q4f5 Qdc7 Qh5 Qcc5 Qh7 Bb2+
2bqQrNQ/1rR5/2rnQ1q1/K1BNqRr1/1n3p1B/pq5k/4B3/1Qb2q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 Kf6 c4 Kf5 e3 h5 b5 d5 c5 a5 c6 d3 Kc3 d2 g3 h3 c7 d4+ Kc4 f3 e4+ Kg4 b6 f5 Kb5 d3 e5 f4 e6 a3 b7 h2 e7 h4 e8Q h3 Ne2 a4 Qc2 d1R Qb3 d2 Qbf7 f2 Qh7 a2 Ba3 Ne7 Nbc3 Rg8 Qb1 Nbc6 b8B Nf5 Nd5 Rg5 Ne7 Nb4 Ng8 Rc1 Nc3 d1Q Ba7 Qb3 Ka5 Nd6+ Nd5 Rc6 Ba6 f1Q Bc5 Qfd3 Rc1 h1Q Bb2 h2 Bf6 Kh3 g4 Qdc2 Be7 Rb8 Be2 Qf1 Bf6 h1R Qe6 Rg7 Bh4 Rg1 g5+ Qf5 g6 Rg5 Rc4 Rb7 Rc1 Rf7 g7 Be7 Rc4 Bf6 Rc2 Bb2 Qe8 Qg6 Rc4 Be6 Rc2 Bc1 Rc4 Qe7 c8Q Rf8 Qcd7 Bf5 Qe6 a3 Re4 Qd7 Re5 Bg4 Rf5 Qe7 Nh6 Qd7 g8Q Qc8 Qh8 Qd7 Rf7 Qd8+ Rc7 Bf5 Ng8 Bg4 Qc2 Bf5 Rb1 a1Q Rb2 Bg4 Qb1 Bf5 Rd2 Qe5 Rd4 Bg4 Re4 Qd4 Re5 Qde4 Qef6 Bc8 Rf5 Qe5 Qfe6
n7/2n2K2/1qB2B1k/1nq1qNbp/4rq1Q/QN1rRn2/1BqRR1p1/2R2b2 b - - 0 1 illegal: No proof kernel
r1nk4/r1B1r3/b1q1R1R1/2nn2pq/1pr2b2/2Q3B1/2r2NBN/NKn2NQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 g5 c4 b5 Kc2 b3+ Kb2 b4 a4 f3 e5 g3 e6 f2 h5 g2 a5 d3 e7 d4 h6 d2 h7 f4 c5 d3 a6 f3 c6 Nd7 c7 Nc5 a7 Qd6 Na3 Qc6 Rh6 Ba6 Qe2 d1N+ Kb1 d2 Re6 b2 Nh3 g1N Nc2 Ne3 Qd1 Nd5 Bg2 f1R Nf2 Re1 c8N Re3 Nb6 Ne2 Qg1 d1Q Nc4 Bg7 Ra3 Be5 Na1 Bf4 Nd2 Rc3 Ra2 Rc2 Nf1 Kd7 e8N Kd8 Ra3 Nge7 Nf6 Nc8 N6g4 Re8 h8B Re7 Be5 Rc4 Ngh2 Rc2 Ka2 b1R+ Bcb2 Rbc1 Bc7+ Kd7 Rg6 Rc4 Rd3 R1c2 Re3 Nc1+ Kb1 Qe2 Ree6 Qd1 Nh1 f2 Bbe5 Qh5 Bed6 Be3 Bg3 Bf4 Nd2 f1R Nf2 Re1 Ndf1 Re3 Nd1 Ra3 Nf2 Rb8 a8Q Ke8 Qb7 Ra8 Bb8 Ra4 Qc7 Ra5 Qe5 Kd8 Qe1 Rb5 Bd6 Rbb7 Qc3 Rba7 Bc7+
1B2N1b1/3r2bn/bnN3B1/k2B1p1b/b3q2R/1pR3nK/q4QrN/n2B1Q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 c4 f5 e4 h5 g4 d5 Kg2 Kd7 a4 Kc7 e5 Kb6 c5+ Ka5 c6 d3 g5 b3 g6 b2 g7 d4 c7 h3+ Kh2 d2 e6 h4 e7 f3 e8Q d3 Qd7 b4 Qf7 f2 Qe1 d1B Qfe6 d2 Q1e5+ Qd5 Qf7 Bh5 Be2 f1B Nf3 d1B Qg3 Ra7 Bf4 Qa2 Ne5 Ba6 c8N Rd7 Nd6 Nf6 g8B Bg7 Qc4 Nh7 Bf7 Rg8 Nd2 b1N Qf2 Na3 Ne8 Nc2 Rc1 Na1 Bg6 Bg2 Qd3 Bd5 Rc3 Be6 Ndf3 Bdb3 Kg1 h2+ Kg2 h3+ Kg3 Bec4 Bd1 Bcb5 Qb1 Bf7 Qd3 b3 Qdf1 Bc6 Rg1 h1Q Nh2 Qe4 Rh1 Rd5 Kh4 Nd7 Kg3 Nb6 Kh4 Kb4 a5 Rd7 Kg3 Bcb5 Nc6+ Ka4 Bb8 Bfc4 Ng4 h2 Kh3 Bf7 Rg1 h1N Nh2 Ng3 Rh1 Bb7 a6 Bfc4 a7 B7a6 Nb4 Ka5 a8B Ba4 Bb7 Rf8 Ba8 Bg8 Bc6 Rf6 Bd5 Rfd6 Bdf7 Rd2 Bd5 Re2 Nc6+ Kb5 Q2g1 Be5 Ng4 Qd4 Kh4 Bg7 Rh3 Qd3 Nh2 Rg2 Qgf2 Nh1 Rc4 Qde2 Rhc3 Ng3 Kh3 Qe1 Nd8 Ka5 Rh4 Qe4 Nc6+
Q7/QRr3qn/3N2b1/pR2q2b/knbp1RB1/Nb1nb3/1B1N3K/4Rr1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 h5 b4 a5 c4 f5 e4 d5 g4 Kd7 Kg2 Kc6 g5 f3+ Kh3 a3 c5 d3 e5 Kb5 g6 a2 e6 f2 e7 f4+ Kg2 h3+ Kh2 f3 e8R h4 c6 Qf6 g7 Bc5 c7 Nc6 Re3 Bg4 c8N Ra7 Qb3 Bh5 Ba3 Rc7 Qb2 Ka4 b5 d2 b6 d1B b7 Nb4 b8Q Bb3 Re6 Be3 Qd4 Qe5+ Qf4 Nf6 g8R Nh7 Rgg6 Rf8 Be2 f1B Rd6 f2 Bg4 Bfc4 Bb2 f1B Qa8 Bfd3 Rg7 Bdg6 Rb6 d4 Qg3 Rf1 Na3 Nd3 Rc1 a1N Nf3 Nc2 Re1 Ncb4 Rd7 Qg7 Rb5 Qe5 Nd2 Qg7 Rg1 Qe5 Kh1 h2 Nd6 Qg7 Kg2 h1N Kh2 h3 Rg2 Qe5 Rf2 Qg7 Qgg2 Rc6 Qb8 Ng3 Ra7 Rc7 Rf3 Ne4 Qh1 Nef2 Kg3 h2 Qg2 h1Q Rf6 Ng5 Qga8 Qd5 Rab7 Nh7 Qba7 Qe5+ Rf4 Nh1+ Kh2
2b5/n1B1BqQp/3K1b2/1rr3k1/1RNb2B1/1b1b2pr/1nq1NN1B/4QRr1 b - - 0 1 illegal: No proof kernel
n1rNr1rk/n2B3p/Q1q5/n1R2qBK/Qpn3Q1/2b3Q1/RNb5/2Nr1r2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b3 Kf3 f5 e4 Kf7 a4 Kg7 g4 d5 c4 b5 g5 d3 c5 d2 e5 b2 a5 d4 g6 b4 c6 h3 e6 h2 e7 d3 e8Q Qd5+ Qe4 Na6 c7 Ne7 Nc3 b1Q Qe1 d1N Nb5 d2 Ra3 Nc6 Rc3 Nb2 Kf2 f3 Kg3 f4+ Kh4 f2 Na3 f3 Nc4 Bf5 c8Q Nc7 Bh3 f1N a6 f2 a7 Ne3 Kh5 Bc5 Qce8 Rc8 a8Q Bd4 Qa6 Na8 Ne2 Na7 Qea4 Rhe8 Qg1 Kg8 g7 Qc6 Ra3 Bf6 Ra2 Be5 Qg5 Bf6 Re1 f1R Qeg2 Be4 Bd7 h1R+ Qh4 Rfg1 Qgh2 Rg6 Q2g3 Rf1 Qhg4 Bd4 Nf4 Be5 Nd3 Bf6 Re2 d1R Rf2 Qc2 Rf5 Bc3 Rc5 Qf2 Bd2 Qf7 Nc1 Bc2 Q4f4 Qf5+ Qfg5 Kf7 g8N Kg7 Nh6 Kh8 Nf7+ Kg7 Nfd6 Kh8 Nb7 Rgg8 Nd8 Nd3 Nb3 Nc1 Nb2 Nc4 Be3 Nd3 Bd2 Na5 Nc1 Ne5 Be3 Nec4 Bf4 Qd3 Q5g4 Qf5+ Bg5
KB2Nrq1/2rbB2p/5Q2/b3Nqp1/2B1B1n1/1rQ1k2r/NR1r1b1b/1Rn5 b - - 0 1 illegal: No proof kernel
3qq1N1/1q4bp/2qk2R1/R4p1N/1nn3r1/r3r1Rb/rNr2BQN/1Q1B1K2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 Ke7 c4 d5 a4 b5 g4 h3 g5 h2 a5 b3 c5 d3 e5 f3 e6 d2+ Kf2 d4 c6 b2 a6 b4 a7 d3 c7 b3 g6 Nc6 g7 Nb4 Bg2 Nf6 g8R Bg7 Qe1 d1R Ra5 d2 Nc3 b1R Ra2 b2 Nh3 Nd7 Rg1 h1Q Nf4 Ra1 Ra5 b1Q Na4 Nb6 Kf1 f2 Bf3 Kd6 e7 Nc4 Nh5 Ra3 Nb2 Qe8 Bg4 Qhe4 Rg3 Q4c6 Be2 Bg4 Bf3 Rc8 a8Q f5 Qb7 Qc5 Be2 Bh3+ Qg2 Qe4 Bg4 Qb7 Bf3 Qcc6 Be2 Bf6 R8g6 Rg8 Bg4 Kd7 Be2 Bg7 Bf3 Ra8 c8N Re3 Rb5 Raa3 Ra5 Qf7 e8N Qf8 Nc7 Qe8 Ne7 Ra2 Ne6 Kd6 Nf6 Rea3 Ng4 Re3 Nh2 Rea3 Ke2 f1R Bg4 Rff3 Nf4+ Kc7 Nh5 Rfe3+ Kf1 Kd7 Na4 Kc7 Bb2 Rc1 Bd4 d1Q Nb2 Rc2 Ba7 Qdd8 Qb1 Kd7 Bd1 Kc7 R6g4 Kd6 Bb6 Rf8 Rg6+ Rf6 Ng8 Rfe6 R6g4 R6e4 Rg5 Rg4 Ba7 Re7 Bf2 Ree3 Rg6+
3R1r2/qp1Q1q2/bB1nQn2/3q4/QNb1q2Q/KpRq1k1B/B6b/b5rN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Kd6 e4 Ke5 h4 f5 c4 g5 Kc2 d5 Kb3 d3 a5 f3 a6 f2 h5 d2 h6 Kf4 e5 g3 c5 g4 e6 g2 a7 g3 e7 d4 e8Q d3 h7 Nd7 c6 Nb6 c7 Qd4 Qa4 Nc4 Na3 Qe4 Rb1 Nd6 Rb2 Bg7 Nb1 Nf6 Ne2+ Kf3 Qa5 g1B Rh5 f4 Na3 g2 Qd5 Rf8 h8Q Be6 c8B Bh2 Nc2 g1Q Bh3 f1B Ng3+ Be2 Qe1 d1Q Be3 d2 Bb6 Ba6 Nh1 Qe2 Qh7 d1Q Qh4 Qed3+ Ka4 Rb8 a8Q b3+ Nb4 Rg8 Ka3 Bf7 Bcf5 Rbf8 Qc6 Bfc4 Rc2 Qdd5 Qa7 Q1d3 Rc3 Qgd4 Qc8 Bh8 Qe6 Rg1 Qhd7 Qf2 Bd8 Qfe3 Qa8 Qa7 Bb6 Ng4 Qae8 Qee5 Nc2 Rf7 Bd8 Ke2 Rh7 f3 Qde7 f2 Bb6 f1Q Qa4 Qd2 Rg3 Rf8 Nb4 Qdd1 Bc2 Qee4 Bb1 Ba1 Rc3 Q1d3 Ba2 Qff5 Qc7 Kf3 Rd7 Qf7 Rd8 Nf6 Qcd7
7q/3Nn2N/Br2b1qR/NBB2r2/1Qbnb3/2b1rRr1/p1n1pK1k/1Q4N1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 b4 Kf6 c4 Kf5 g3 h5 b5 d5 c5 e5 b6 a5 b7 d3 c6 e3 c7 e4 Rh2 d2+ Ke2 Kg4 f5 d4 f6 a3 f7 a2 Nf3 h3 Bg2 d3+ Kf1 e2+ Kf2 e1R Bh1 a4 Rg2 h4 Rh2 a3 Qe2 d1Q Qc2 d2 Qa4 Nc6 b8Q Qc2 Qab4 d1B+ Qd2 Re3 Qb7 Bb4 f8N Bc3 Kf1 Ra6 Nh7 Nge7 Kf2 Nd4 Nfg5 Be6 c8B Rg8 Qb8 Rb6 Ba6 Be2 Qd1 Bc8 Nd2 Be6 Nc4 Rg7 Bb5 Qh8 Na5 Rg6 Rb1 a1N Rb3 a2 Ba3 Rg8 Qd2 B2c4 Bc5 Qd3 Bg2 Nac2 Bf1 Rg7 Rh1 h2 Nh3 Rg8 Qe1 Rg7 Qb1 Rg6 Rg1 h1R Rg2 Rg1 Rh2 Rg5 Ba6 Rc6 Qb4 Rb6 Nf4 h3 Bb5 Kf5 g4+ Ke5 Ra3 Rf5 g5 Rgg3 Rh1 h2 g6 Bb3 g7 Bbc4 Rg1 h1B g8N Bg2 Rh1 Bf3 Rh6 Bg2 Be2 Bh1 Bf3 Bg2 Nh3 Bh1 N3g5 Kf4 Be2 Bg2 Ngf6 Bf3 Nd7 Kg4 Rg6 Kh4 Nf7 Kh3 Nfg5+ Kh2 Nh3 Nb3 Qa4 Qd6 Qb4 Nbd4 Rh6 Qc6 Ndf8 Qe8 Rb3 Qg6 Nd7 Rd3 Nhf8 e3+ Kf1 Bd2 Nh7 Bcd5 Ba6 Bh1+ Bf3 e2+ Kf2 Bc4 Ra3 Rh5 Bc6 Be4 Bcb5 Rhg5 Rb3 Re5 Rb2 Ra3 Rb3 Rf5+ Rf3 Re3 Q4b3 Bb4 Qa4 Bd2 Qab4 Bc3 Ng1+
q1R1B3/1NnK1B2/r2R2b1/5RR1/Q1Q4r/2q2pn1/2rpq1r1/B1bk1qNb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 h5 e4+ f3 a4 b5 a5 f5 e5 f4 a6 h3 a7 h2 g3 d3 e6 h4 c5 h3 e7 d2 Kd6 b3 c6 b2 c7 b4 Qe2 d1Q+ Qd2 b3 Qd4 f2 Ra2 Bh6 e8Q Qe2 Be3 Qf6+ Kd5 Ne7+ Kc5 d5 Ra3 Bf5 c8R Bg6 Bg2 f1Q Nd2 b1R Rc6 b2 Ra5 Na6+ Kb6 Nf5 Ne4 Nc7 Qc4 d4 Nd6 d3 Bd4 Rc1 Nb7 Rc2 Rd6 b1R+ Kc6 Rbb2 Kd7 Ra2 Ba1 Qc3 Rb5 Ra6 Qee4 Rag8 a8R Bg5 Qe8 Rh4 Rc8 Bh6 Bc6 Bg5 Nf3 Bh6 Rg1 h1Q Rg2 h2 Ng1 Bg5 Rf2 Qd5 Qee4 h1B Qa4 Bh6 Qec4 Qde4 Rc5 f3 Rg2 Bc1 Rcd5 Kg5 g4 Kf4 g5 Ng3 Rf5+ Ke3 Bb5 Kd2 Bc6 Bf7 g6 Kd1 g7 d2 Bb5 Bg6 Bc6 Rgh8 g8B Rh2 Bb5 R8h4 Bf7 Qd5 Na5 Qa8 Nb7 Nh5 Rgg5 Rg2 Kd8 Ng3 Bbe8 Qef2 Ke7 Q2e2+ Kd7
Nk3q2/r1qNRBQ1/1B2Q3/b4r2/2nK3n/nRp1Bbb1/p1qn2RB/6b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 b4 f5 g4 a5 d4 h5 e4 c5 d5 Kc7 b5 h3 e5 h4 e6 h2 g5 f3 Ke3 h3 e7 f4+ Ke4 a3 e8R f2 g6 f3 g7 a4 Bg5 Na6 d6+ Kb8 d7 Bd6 Nd2 Ra7 Rf8 Qc7 Rb1 Bg3 Rb3 Nb4 Re8 Rh5 Rb1 Ne7 g8Q Nc2 Qe1 Ng6 Rb3 Nh4 Rb1 a2 Re7 a1B Bg2 f1N Qf7 a3 Qf8 a2 Qf4 f2 Rb3 Bd4 Qf7 Nfe3 Qf5 f1N Bf3 Na3 Qa1 Bb7+ Qd5 Bc6 Bh6 Rg5 Bh5 Bc3 Bg6 Ba5 Ngf3 Ba8 Rg1 h1Q Qf6 h2 Qg7 Qg2 Be8 Qf2 Ne5 h1Q+ Rg2 Qf8 Bf7 Rf5 Qc6 Qg1 Bg5 Qf2 Bf4 c3 Ndc4 c2 d8B c1B Nb6 c4 Kd4 c3 Qe6 Bf3 Na8 Qb7 Bb6 Qc2 Bh6 Nec4 Nd7+ Kc8 Bf4 Bd2 Bg5 Bde1 Be3 Bef2 Bc7 Bg1 b6 B3f2 Bd8 Nfd2 Bc7 Qc6 Bh2 Bg3 b7+ Kd8 b8B Kc8 Bd6 Qc7 Bb4 Kb7 Bc5+ Kc8 Bb6 Kb7 Ne5 Kb8 Nd7+
2r1Rb1n/1qr1Bnk1/1NbQKRq1/Q3B2Q/6p1/Q2b2b1/1q4pN/rB5r b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 e5 f4 g5 c4 b5 a4 d5 a5 e3 Kd3 b3 a6 b2 a7 e4+ Ke2 d3+ Ke1 g3 c5 g4 f5 g2 c6 e2 Kd2 e1R Kc3 b4+ Kd4 e3 Ke5 d4 f6 b3 c7 d2 h5 d3 h6 e2 h7 Bb7 c8Q Qd6+ Kf5 Bc6 Nh3 Nd7 Qa6 Rc8 a8Q Rc7 Na3 b1B Bb2 Ne5 Qa5 Ng6 Be5 b2 Nc4 Qb4 Rh2 Qb7 Ng1 Bc2 Nf3 b1Q Ra2 Q1b2 Nb6 Bb1 Rh6 Bc2 Qc1 d1Q Qf4 Qdb1 Nh2 Rc1 Qa3 e1B Q8a5 d2+ Bd3 d1R Qfb4 Bf2 Qd6 Rh1 Be4 Bg3 Ra1 Ke8 Ke6 Bd3 Ra2 Q1c2 Ra1 Rcf1 Re1 Rfg1 Re3 Ra1 Bf5 N8e7 Be4 Nf5 Re2 Rg8 h8Q Qcb1 Qh7 Nh8 Rg6 Q1c2 Qh5 Nh6 Re1 N6f7 Rh6 Be7 Re3 Kf8 Rg6 Nh6 f7 Qcb1 Rf6 Kg7 Re1 Rgc8 f8B+ Kg8 Qdd5 N6f7 Re3 Bb4 Be7 Kg7 Bh7 Bf1 Qd2 Qg6 Qd6 Bd3 Re4 Qh6 Bf5 Qg6 Re1 Bdb5 Bc2 Bd3 Bb1 Bcb5 Bf8+ Kg8 Bd4 Qf2 Qd7 Bc3 Ke7 Qb2 Ree6 Bc6 Be5 Nh6 Kd6 Bd4 Re8 Bc5+ Ke6 N6f7 Bfd6+ Kg7 Qe7 Be3 Bb4 Bc5 Qd7 Bf8 Be7 Rg1 Qd8 Rh1 Qdd6
KQ1b2bq/2bnQNBR/4qqnn/1B6/N1R1p2b/k5r1/r2Np1N1/1q1B4 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 f4 b5 h4 e5 a4 Ke7 c4 Kd6 f5 Kc5 h5 d5 h6 g3 f6 e3 Kd3 g4 h7 g2 a5 b3 a6 Kb4 a7 e2 f7 b2 c5 g3 c6 e4+ Kd2 d3 Ke3 d2 Kd4 Be7 f8N Be6 c7 Nh6 c8B Bh4 Ng6 Bg8 Nf3 g1B+ Ke5 d4 Rh2 d3 Ra6 g2 Rd6 Bb6 Ne1 g1B Bd7 Bc7 Bfh3 Bgb6 Bhe6 Qf6+ Kd5 Bd8 Rc6 Bbc7 Qc2 d1N Ne5 d2 Nf7 Nf2 Ng2 d1Q+ Nd2 b1Q Bb2 Nd3 Qc5+ Ka4 Be8 b4 Qe7 Nd7 Rc4 Nf4+ Kc6 Qa2 Kb7 Ng6 Bd4 Qb2 Bd5 Qe6 Bg7 Qf1 Bc6+ Ka3 Ba4 Qff6 Bd1 Nb6 Bb5 Nd7 Rc5 b3 Rc4+ Ka2 Rh1 Qa1 Rh3 b2 Rh1 b1Q Rh3 Rc8 a8N Kb2 Nb6 Ra8 Rh2 Ra3 Rh3 Rg3 Na4+ Ka2 Ka8 Qad4 Rb4 Ka3 Rc4+ Bd6 Rc3+ Kb4 Ra3 Nf5 Nc4 Bg5 Nf4 Rg2 Rac3 Qfe5 Qe8 Bb6 Bh6 Qg7 Nc5 Qdf6 Qe7 Rg4 Nd8 Bf7 Kb7 Re8 h8Q Rg3 Qhf8 Bg8 Ng2 Qh8 Nf7 Ra8 Qb8 Ra2 Bg7 Bd8 Rh7 Bh4 Nd2 Nh6 Rc4+ Ka3 Ka8 B6c7 Na4+
7r/r1nKRq2/Q2bQR1B/6p1/1rb1bQpq/1N2b2B/N6n/1krBn1B1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 b5 h4 d5 a5 b3 h5 d3+ Ke3 b2 Kd4 b4 Kc5 e3 a6 Ke4 h6 e2 f5 e1N f6 d2 a7 b3 h7 d4 f7 d3 Ra2 Nh6 Rh3 Na6+ Kc6 Nc7 c5 Be6 Be2 Bc4 Na3 b1B Nf3 b2 Qc2 d1Q Qb3 d2 Nd4 g6 Qb6 Qb3 Rf3 d1R Rf6 e6 Nab5 Bd6 Bf3+ Kd3 f8Q Bc2 Ra6 b1R Nc3 Qa2 Ra3 Rb4 Nb3 Bb1 Bg5 Rc1 Bd1 Qf2 Qf7 Qh4 Ra4 Qf8 Na2 Qg7 Qf8 Qf7 Qa6 Bc2 Qe7 Bb1 Kd7 Bc2 c6 Bb1 Bf3 Kc2 Bd1+ Kb2 Ra5 Be4 Re5 Kb1 Be3 g5 Bg1 Nf5 Qa4 Ng3 Qa6 Qg6 Qf8 Nf1 Qf7 Nh2 Qf8 Rab8 a8B R8b7 Qb8 Ra7 Bb7 Rf8 h8B Qgh7+ Bg7 Rh8 Ba8 Qg6 Bh6 Qg8 Ref5 e5 Re6 Qf7+ Re7 Bed3 Rf1 e4 Rf6 e3 Bb7 e2 Ba8 Nb5+ c7 Bh7 Bb7 Be4 c8Q Nc7 Ba8 Nd3 Bd5 e1B Qg8 Bd2 Qg6 Bh1 Bg2 Be3 Bh3 Be4 Qf5 Ne1 Qbc8 Bd4 Qf4 Be3 Qg8 Qfh5 Qd5 Qf7 Qe6
2BR1NQ1/k3NKb1/2q2Rr1/2b1Rp2/7r/1nnNB1p1/R5bq/q1rQbq2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kc6 a4 Kb6 e4 c5 d4 g5 a5+ Ka7 h5 f5 d5 b5 d6 c3 e5 c4 h6 b3 d7 b2 h7 c2 e6 b4 e7 g3+ Kf3 b3 e8N g2 a6 c3 Nc7 g4+ Ke2 f3+ Ke3 g3 Kf4 f2 Ke5 Qh4 Ke6 Bg7 Ne2 g1B Nf4 Nc6 Qh5 Na5 Qh6 Nf6 Be2 f1Q Qh5 Ne4 Kf7 Qh2 d8R Bb7 Ra2 Bc5 Be3 c1Q Nce6 c2 Nc3 b1Q Nf8 b2 Ncd5 Nb3 Ne7 Qa1 Nd3 b1R Ra5 Rg8 h8Q Nc3 Q8h7 Rh8 Qg8 Bg2 Bf3 Rc8 Bb7 Rc6 Qd1 Rg6 Bc8 Rh4 Ra2 Qf4 Re1 Qf1 Bd4 Qh6 Re5 c1B Be3 Bd2 Rd6 Be1 Rf6 Ka8 a7 Rc1 Be6 Kb7 a8R Kb6 Rd8 Kb7 Rc2 Ka7 Bd7 Qhf4 Rd2 Qe4 Bc8 Qc6 Ra2+
nn1B2NQ/2R5/qBb1B2b/1q1pR2N/qrn1q3/BN1rQ2k/2K3p1/b1n5 b - - 0 1 illegal: No possible last move
4N1Bk/1nr4b/2Rq1pqr/3npr2/NQ5Q/1r2RB1N/Bq6/nqb1K1B1 b - - 0 1 illegal: No proof kernel
kb2nBQ1/8/q1QpRQ1r/4B1p1/b4rb1/3r2Q1/q1nNq1BR/1qbN2K1 b - - 0 1 illegal: No possible last move
3QQnB1/B7/1p1p2NK/qbnqr1N1/r1Q1nr1b/2R5/3R4/k2RQqrq b - - 0 1 illegal: No possible last move
4b2B/N2N3p/1r1Q1Qnb/RRRB4/k1n1bpK1/rqr3N1/q1nr1b2/2N5 b - - 0 1 illegal: No possible last move
N2rnBB1/nrb2n1p/K1b1Np2/1RN4Q/3R1Q1r/kQ1b4/4q3/3qb1Qr b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 d4 Kc6 Kd2 b5 g4 b3 Kc3 h3 e4 b2 g5 h2 e5 f3 e6 f2 e7 b4+ Kc2 b3+ Kc3 Nf6 Kb4 c3 a5 c2 g6 Bd7 g7 Ne8 g8Q f6 Bd2 c1N a6 Nd3+ Ka5 Ne5 d5+ Kc5 a7 Nf7 d6 Bc6 Be2 f1Q Nc3 b1B d7 b2 Bc1 Bd3 Nh3 b1R Ra4 Rb7 Bh6 Qe1 Rf1 h1R Rd4 Qd2 Bf3 Qe2 Qg1 Rg8 Bg2 Rg4 Bd5 Re4 Qb3 Rh4 Bd2 Bh6 Rf5 Bf4 Ng5 Bg3 Bc1 Be1 Bc4+ Bd5 Re5 Nc6+ Ka6 Rc8 a8N Na7 Nh3 c6 Bh6 Rcb8 Ng5 Rc8 Qd1 Kb4 Nce4 c5 Ne6 Bc6 Bf8 Ka3 Qb1 Rcb8 Qb5 Rc8 Bb3 c4 N4c5 c3 Bd5 Ng7 e8Q c2 Rh5 c1B Ba2 Qe7 d8Q Bf4 Qc7 Qd7 Rg5 Bh2 Qf4 Rd8 Rh5 Qd5 Rf5 Qb3 Rg5 Qbd1 Bd5 Nd6 Qh5 Nge8 Bc4 Nf7 Qa4+ Kb2 Qb3+ Ka1 Qf5 Rf4 Ng7 Rh4 Na4 Bc7 Qf4 Nh8 Rc5 Bb1 Rb5 Bd3 Bg8 Nf7 Qb4 Ka2 Nc5 Bd7 Nge6 Bc6 Qc4+ Ka3 Qb3+
1RR2KRn/1qN1Qnp1/rQk2r2/Q7/q3pbN1/B2brB2/1Rnnr1b1/8 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 d5 f4 Kd7 a4 b5 h4 e5 c4 e3+ Kd3 g3 c5 b3 a5 b4 a6 e2 f5 e1N+ Kd2 b2 f6 d3 Ke3 e4 Kf4 d4 Kg5 g2 Kg6 d2 Kf7 d3 h5 b3 a7 Nc2 h6 Qc7 h7 Kc6+ Ke8 Nd7 f7 Ne5 Qh5 d1R Ra4 d2 Qg6+ Bd6 f8Q Ne7 Rb4 Qb7 Rh2 Nf7 Nf3 g1R Nc3 b1B Nd5 b2 Bg2 Rdf1 Nc7 d1Q Qh6 Rf2 Qe3 Rg8 h8R Re2 Qb3 Rf1 Qe6 Rb8 a8Q Ng6 Qa5 Rff2 Qe7 Bf4 Bh1 Re3 Rg2 Rf1 Nh2 Bh3+ Qd8 Rf2 Ng4 Rfe2 Rh2 Bf1 Bf3 Ra8 Rf2 Ra6 Rfh2 Qa7 Rb8 Qb7 Qe7 Bg2 Qd8 Ba2 Qe7 b1N Ba3 Nd2 Qd8 Nge5 Ke7 Bc4 Qd4 Qf1 Qfd8 Rf8 Rg8 Nh8 Qb2 Rf6 Qbd4 Bf7 Kf8 Qh1 Qe7 Bc4+ Qf7 Bh3 Qb4 Nb3 Qb2 Rf2 Qa5 Ne1 Qb1 Bd3 Ne6 Kd5 Bb2 Rc2 Rd2 Bg2 c6+ Kd6 c7 Kc6 Rf2 Qf1 Bc1 Qe2 Ba3 Qd1 Ke8 Rd2 Qe7 Nef7 Kf8 Qc2 Qb2 Qc4 Qb1 Qa4 c8R+ Qc7 Rd8 Qb7 Nc7 Rc2 Rdc8 Ra2 Rf1 Rae2 Qb2 Nc2 Rb1 Nd2 Qb3 Rb6 Rb2 Ra6 Qbb6+
B1bR1n2/q1bqpQ1B/8/1r1qkQ2/1RQ3nK/p1r2qB1/5r2/NBn1r1N1 b - - 0 1 illegal: No possible last move
3nN1BB/N1pR1qnQ/1Rr3Bn/K2B3r/6r1/1b6/Q1rp1q2/q1k1bR1n b - - 0 1 illegal: No proof kernel
NNr2b1Q/bbp3nK/NBRr3p/qB3R2/R5r1/1r1n3R/Qb2n1q1/k7 b - - 0 1 illegal: No possible last move
1R2Q2q/2prn2r/2bqp3/2N1b2R/q2N2R1/2BB1rn1/1K1kqR2/2nNr1Q1 b - - 0 1 illegal: No possible last move
NN2Q3/1p1n3K/R1bp1bnQ/3B2b1/q4r2/1qRQ2r1/1k2Q1B1/n1r2bBr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Ke6 h4 Kd5 e3 g5 h5 f5 c3 d3 a5 Kc4 a6 f3 Kg3 d6 a7 b3 h6 f2 h7 f4+ Kg2 b2 e4 g3 Kf3 g2 e5 g4+ Ke4 f3 e6 g3 Kf5 Qe8 Rh3 Bd7 Ra6 Bh6 Be3 Bg5 Qe2 Kb3 c4 d2 c5 d1Q Nc3 b1R c6 Rc1 c7 Bc6 c8B Nd7 e7 Bf6 Qd3 Kb2 Nb5 Qb3 Ne2 g1B Ned4 g2 Nc7 Bh2 Rg3 g1R Bg2 f1N Rh3 Rb8 a8Q f2 Qa7 Bhe5 Na8 Bf4 Qc5 B4g5 Qe5 Nd2 Bd5 Qh5 e8Q Qh4 Kg6 f1B Rg3 Rh1 Bg1 Qg4 Qee2 Ne7+ Kf7 Rg8 h8Q Ng6 Qh6 Nb6 Bf5 Nd7 Be4 Qf4 Bg2 Qh4 Nc2 Qha4 Nb4 Rc8 Rh3 Rc4 Rg3 Rf4 Re3 Bb5 Rf3 Rc1 Nc6 Rg7+ Ke6 Rg8 Nb8 Bc6 Kf7 Qbc4 Q2e4 Nb3 Qde2+ Qc2 Rc3 Na1 Q2d3 Qcb3 Q4e6 Rh8 Qe1 Rh7+ Kg8 Re7 Qed1 Re3 Kh7 Rg3 Q1e2+
2Q1qQ2/pqBBr2N/1R1qR2Q/3bR1r1/2n1rrb1/1kn5/1pbQN2b/7K b - - 0 1 illegal: No proof kernel
3NK2b/bn1n2b1/1nrQ1b2/N2Bp1Rp/Rqn2Q1k/4N3/2b1r1B1/2Bb2N1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 d4 b5 a4 c5 g4 b3 a5 c3 f3 b4 a6 b2 a7 c2 d5 c4 d6 b3 d7 e3 Bd3 e2 Nd2 e1B Bf1 b1N Ke4 Kg5 Ke5 c3 Ke6 b2 Kf7 h3 f4+ Kh4 g5 h2 f5 Bg7 g6 Qa5 d8N Rh6 f6 Qb4 Bd3 Bf2 Be4 Na3 Nb3 b1B Qe2 Bg4 Bb2 c1B Nc5 c2 Nb3 Nd7 Bf3 Bg5 Ra2 c1B Qd2 Nb6 Qd6 Nac4 Be4 Bc2 Ke8 Bgd1 f7 B5f6 f8Q e5 Bf3 Bh8 g7 Rg6 Na5 Bh6 Bg2 Rc8 a8B Rc6 Bh3 Rg2 Ra4 Bc5 Bc1 Re2 Bg2 Bce3 Nh3 Bc5 Re1 h1N Rg1 Nf2 Bd5 Nd3 Rg5 Bd4 Ng1 Nc5 Qf7 Nb7 Qff8 Ne7 g8N Ng6 Ne7 Bh6g7 Bg2 Be3 Nd5 Bc5 Qf7 Nf8 Ne3 Nfd7 Qfe6 Nd5 Qf5 Ba7 Qf1 N5b6 Bd5 Rc7 Qf3 Nbc5 Bac6 Nb7 Qf5 Rc8 Bg2 Rc7 Bcd5 Rc6 Qf4+
3b1Q2/nB1b1p1n/K2n4/1Qr1B1k1/n1rn2r1/R2nR3/Qq2p3/N1r1QNN1 b - - 0 1 illegal: No proof kernel
b6b/r1kn3R/n1qQ4/1n6/1RrRQ2b/q2Q1R1B/ppr1p1K1/B1Nq3N b - - 0 1 illegal: No proof kernel
Bb3K1R/1b2r3/2r1N1B1/1nQqR2R/rRp1n2B/Q2n2pb/1Nk1p3/3q3q b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 Kg6 b5 Kf7 e5 a4 g5 f4 c5 h4 g3 d3 b3 f5 g2 f6 b2 a5 b4 a6 b3 a7 e3 h5 c3 h6 e2 h7 e1N Qh5 c2 Nd2 Kc3 d4 b1B d5 b2 d6 g4 d7 g3 Ba6 e4 Qe2 e3 Ra5 Bd6 Bc4 Na6 Ngf3 g1Q Bd3 Nc7 Qf1 e2 Rh5 Qh1 Nc4 Bb7 Nd4 Nb5 Bg6 Bb8 Ne6 Nd3 Bg5 c1R Qf2 Kc2 Bh4 Ba2 Qg1 b1Q Nb2 Bad5 Ra4 Bg2 Rb4 Bh3 Qf2 Qa5 d8R Qaa2 Rf8 Qad5 Re8 Qd1 Kf8 Qa1 f7 Nf6+ Kg7 Ne4 f8Q Qh1 Qd6 Rg8+ Kf7 Rg7+ Kf8 Re7 h8R Qa4 Rb3 Qad4 Qf5 Qdg1 Rb4 Qd1 Qg5 c4 Qc5 Ra1 Qge3 Ra4 Qf3 Bc7 Qfe3 Rc8 a8B Bb8 Qf3 Rc6 Qfe3 Nf4 Qa3 Nd3 Ng5 Rh7 Re5 Re7 Ne6
3R3n/1q2p3/1qbk4/Q3rr1B/qprbR2K/n3Q1B1/3bN2p/N2RBn1R b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 b5 Kf2 d5 a4 Kd7 g4 h5 c4 d3 f5 d2 a5 d4 c5 d3 a6 h3 Kg3 e3 a7 e2 f6 e1B+ Kh2 b3 g5 b4 c6+ Kd6 c7 h4 f7 b2 g6 Bd7 c8R Bg7 f8B Bd4 g7 Qb6 Qe2 d1R Nd2 b1N Ndf3 d2 Ba3 Na6 Rc2 Nc7 Rc3 Rc1 Qe3 d1Q Be2 Nd2 Bb2 Qa4 Rc4 Rh5 Bc3 Nh6 g8R Nb5 Bg7 Rf8 a8Q Na3 Qa5 Rff5 Rd8 Nf7 Bd1 Re5 Ne2 Nh8 Bh6 Rhf5 Bf4 Rc2 Bg3 Rc1 Ng5 Rc2 Ne6 Rc1 Nc5 Nf1+ Kg1 h2+ Kg2 Rc2 Kh3 Bd2 Nb3 Rc1 Kg4 h3 Kh4 Rc2 Rb1 Rc1 Na1 Rc2 Rg1 h1Q Rc1 Qhc6 Rh1 h2 Rb1 Qcb7 Rc1 Bc5 Re4 Bd4 Rb1 Bc1 Bce1 Rc4 Nc3 Bd2 Bh5 Nb5 Ne2 Na3 Rb8 Bb5 Rd1 Bc6 Rd8+
3KN1q1/bp3B1n/1k2r1Q1/1nBB4/1r2nrq1/2bb1QpR/p6q/1B1R2NR b - - 0 1 illegal: No proof kernel
4Q1rB/6nB/2qQN3/2br1bK1/1k1nRNQ1/4p2b/3RpQp1/nRn3nr b - - 0 1 illegal: No possible last move
1qr1B2r/R1N2b1Q/b4N2/nrR1bb1p/2b1RR1p/k2Q2n1/n2B2pN/4K3 b - - 0 1 illegal: No proof kernel
NQ1qb1Rn/KRB2Bkb/B2p1b2/3R1R2/2Nn1b1p/1r1r1r2/2p4Q/4nb2 b - - 0 1 illegal: No proof kernel
1q4r1/3QB1rq/2n1R1b1/1NbQN3/K7/prrp2n1/Rp2B1qr/1QN3kQ b - - 0 1 illegal: No possible last move
N2B1R1K/1k2r1N1/r2n3N/2Q1B2q/2q2rp1/1p4pb/B2R2nb/Nr1b1r1Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 d5 e4 Kd7 h4 Kc7 a5 f5 e5 b3 a6 d3 e6 b2 h5 b4 c5 d4 h6 f3 Kg3 d2 e7 f2 a7 d3 e8N+ Kb7 h7 b3 Rh2 Qd5 Ng7 Na6 Nh3 Qc4 Na3 b1R Nc2 Ne7 Ra4 Nc7 Na1 Rg8 h8B Ne6 Ba3 Nf4 c6+ Kb6 c7 Ng2 Be2 f1R Nf2 Kb7 Bc5 Bd7 Bb6 Nc8 Qe1 d1B Ra6 d2 Bd3 Rb8 a8N Nd6 Ra3 Re8 Ra4 Qa6 Rf4 Re7 Ba5 Qc4 c8Q+ Ka7 Qc5+ Kb7 Bd8 Bc8 Ne6 Rg6 Be5 Rh6 Ng7 Rf6 Rh8 Rfe6 Rd4 f4+ Kh2 g3+ Kh3 f3 Ng4 f2 Nh6 Bd7 Be2 Bc8 Kg4 Rg6+ Kh5 Bh3 Rd5 Rf6 Bf3 Rf4 Kg6 Rg1 Kh7 f1R Nc2 Ra1 Be4 Ra6 Kg8 g4 Na1 Rh1 Nh5 Bg7 Bb1 Bf6 Bc3 Bd4 Ba2 Bg1 Ng7 Bh2 Bf6 Bf3 Bb2 d1Q Be5 Qdd4 Kh7 Bd1 Rf8 Qd2 Rd3 Qa5 Rd2 Qab5 Kh8 Qe8 Qa3 Qh5 Qc5 R1f2 Rg8 Bc2 Qe2 Rb1 Qf1 Bd1 Qh1 Rf1 Rf8
1KQ2bN1/1b5n/1r2n3/1Rq1n2N/BpB2r1n/k2BNpR1/n3qBp1/Q2r4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 Kg3 f2 a6 f4+ Kg2 f3+ Kg3 b3 h7 Kb4 a7 d3 e5 d2 e6 d4 c5 d3 e7 b2 e8B Qa5 c6 Nf6 c7 Nc6 Ra3 Bb7 c8N Ne5 Ne2 Rb8 Nbc3 b1N Na4 Nc3 a8B Na2 Nab6 Qa7 Nc4 Qc5 Qc2 d1N Nf4 d2 Rg1 Ne3 Nh5 d1R Ra5 Ng2 Be3 Nh4 Bd3 f1Q Bf2 Qe2 Ne7 Rg8 h8Q Nh7 Qc1 Rg6 Bc6 Rf6 Ne3 Rf4 Ng8 Kb3 Qf6 b4 Rb5 Ka4 Qd8 Kb3 Qa1 Ka3 Kh2 g3+ Kh3 g2 Kg3 g4 Qc8 Qa7 Bd5 Qc5 B5c4 Ba6 Bad5 Rb6 Bb3 Bb7 Ba4 Qe7 B5c4 Qc5 Re1 g1N Rf1 Nh3 Rg1 Rff6 Rg2 N3g5 Rg1 Rfc6 Kf4 g3 Rg2 Ne6+ Ke4 Qe7 Kd5 Qg5 Rh2 g2 Rh3 Ba6 Rg3 Rc7 Bab3 Rf7 Ba4 Rf4 Ne7 Nc6+ Kd6 Qc5+ Kd7 Bb7 Ng8 Neg5 Kc7 Ne5+ Kb8 Ne6 Bac2 Rd6 B2b3 Rb6 Ba4
1Nqr2R1/1bn1nBQ1/3Q3B/1n4p1/QKRBpn1r/Qpn2N2/2k4q/q3b3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kf6 f4 Kf5 a4 b5 c4 d5 a5 e5 c5 g5 h5 e3+ Kd3 e2 c6 e1N+ Kd2 Ke4 f5 b3 f6 b2 a6 b4 c7 g3 f7 d3 h6 g2 a7 d4 h7 b3 Ra3 Bb7 c8Q Ne7 Qc5 Qc8 Ra4 Na6 Rc4 Nc7 Ne2 g1Q Qa3 Ng2 Rh5 Bg7 f8B Nf4 Rh1 Bf6 Bh6 Qh2 Qa4 Rd8 h8Q Rb8 a8Q Bg7 Na3 b1Q Nc2 Qa1 Ne1 Bf8 Q8a5 Ra8 Qa3 Bg7 Qb5 Ra4 Nf3 Rb4 Bb2 Ra4 Bh3 Bf8 Qg7 Rb4 Ke1 d2+ Kf1 Kd3 Be6 Ra4 Bf7 Rb4 Qc6 Ra4 Qcd6 Rb4 Qc1 d1N Ke1 Nc3 Qa4 N3b5 Bc3 Qa3 Qa1 Kc2 Qa2+ Qb2 Q2a3 d3 Ned4+ Kb1 Nc2 Qa1 Ncd4 d2+ Kd1 Ng2 Ke2+ d1N Nc6 Kc2 Nb8 Nf4+ Ke1 Qhh3 Bd4+ Ndc3+ Kf2 Qh2+ Ke3 Nc6 Qe6 Bc5 Qd6 Ne7 Rd1 Bb6 Re1 Ba5 Re2+ Kb1 Kd2 Nd1 Bf2 Ned5 Qe7 Nfe6 Rc3 Rh4 Bd4 Bb4 Kd3 Nef4+ Kc4 Ba5 Rcc2 Bc3 Kc5 Be1 Rc4 N1c3 Re4 Kc2 Qd6 Nf6 Kb4 Ng8 Bg6 Ng2 Rf4+ e4 Rf8 Nf4 Bf7 Ne7 Rg8
1R4B1/1kb3R1/R3N1nq/2q1Bp2/K2bnBNr/npb5/r5p1/2b1QbBQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 e4 Kc6 h4 g5 d4 f5 Kd2 b5 Kc2 g3 d5+ Kb7 e5 c5 a5 g4 d6 c3 Kb3 f3 h5 g2 d7 g3 h6 f2 h7 c4+ Ka2 c2 e6 b3+ Kb2 b4 e7 Bg7+ Qd4 Na6 e8R Qe7 d8B Nc5 Qc3 Ne4 Bb6 Qc5 Na3 Ne7 Nb5 Ng6 Nh3 g1B Nc7 g2 Bf4 Bd4 Ne6 Bh2 Be2 f1Q Nf2 Qd1 Ng4 Qd2 Rg8 Bd7 Rhb1 Bb5 Ba7 Qe3 Bf1 Qh3 Ra3 Qh6 a6+ Kc6 Rg7 c1B+ Ka1 b2+ Ka2 Bg3 Qe1 c3 Kb3 c2 Bc4 Bd2 Bb6 c1B a7 Ba6 Ka4 B2c3 Bb3 Bf1 Raa1 Rab8 a8Q+ Rb7 Qa5 Rc7 Qb5+ Kb7 Qd3 Bh2 Qh3 Bg3 Qh1 Re7 Be3 Bc7 Bf4 Ra8+ Ba7 Rf7 h8B Rd7 Rg8 Rh7 Bhe5 Rh8 Rg7 Rh7 Ra2 Rhh8 Rba1 b1N Rb2 Na3 Nd8+ Ka6 Bg8 Rh7 Ne6 Kb7 Re2 b3 Rd2 Bf2 Rd6 Bfd4 Ra6 Qg5 Ra2 Rh4 Re2 Qh6 Rd2 Bg1 Rd8 Bgd4 Bb6 Ra7 Rb8+ Kc6 Bg3 Bf2 Ne3 Qf8 Ra5 Nb5 Ng4 Qe7 Be3 Qc5 Be3f4 Bfd4 Bh2 Na3 Bg1 Nc4 Re8 Kb7 Rc8 Qe7 Kb5 Qa3 Ra6 Qe7 Rd6 Ra2 Ra6 Na3+ Ka4 Qc5 Rb8+
r1r2Rn1/n2R4/3knpB1/1Qq1p1N1/1n1bQ3/4B1pK/bN3q2/nqQQN3 b - - 0 1 illegal: No proof kernel
1b4bq/3n1q2/2Q1bpp1/kb2n1RB/1R2r1p1/r3R2N/R5QB/1N1Kb1Bq b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 d4 Kd7 e4 Kc6 h4 Kb6 a4 c5 h5 f3 h6 c3 d5 f6 h7 b3 e5 b2 e6 f2+ Ke2 c2 e7 c4 e8Q c3 d6 Ne7 d7 Ng6 Nd2 b1B Rh5 Bd6 Nb3 Ba2 Qe6 Re8 Bf4 c1Q h8R c2 a5+ Ka6 Nd2 b5 Be3 b4 Rb1 b3 Nh3 b2 Rg5 Re7 Rh7 Qh8 d8B Bd7 Qe4 Bg8 Bc7 Bf4 Bg2 f1B+ Ke1 Re6 Qa4 Bd6 Be4 Bd3 Qa2 B3b5 Qc4 Bb4 Bh2 Re5 Ke2 Bf5 Bb6 Nd7 Qg1 Re7 Qg3 Qh1 Qg2 c1B Bbg1 Bd6 Kd1 Bb8 Bd5 Ra7 Bf7 Re2 Nf2 Re4 Rh3 Nge5 Bh5 g6 Re3 Ra8 Nh3 Ra7 Ra1 b1Q Ra4 Qa2 Nb1 Bd2 Rb4 Be1 Qc5 Qf7 Qc3 Kb7 a6+ Kb6 Qc8 Be6 Qc4 Rc7 a7 Rc5 Qcc2 Rc3 a8R Rb3 Ra1 Ra3 Qc6+ Ka5 Ra2
b3k2K/2B2Br1/1bNp1p1Q/3p1B1b/1q1n2R1/1bnb1RrB/1qN1q2Q/5Q2 b - - 0 1 legal: proof: f4 a5 h4 e5 d4 exf4 b4 axb4 h5 c6 d5 cxd5 h6 gxh6 Be3 h5 Bc1 h4 Kf2 b5 Kf3 h5 a4 h3 c4 h4 Kg4 h2 Kf5 f3 g4 h3 e4 f2 g5 b3 a5 b4 c5 b2 g6 b3 e5 Bg7 c6 Nf6 c7 Kf8 a6 Nc6 e6 Qe7 a7 Ne4 Ne2 Rg8 Na3 b1B Bf4 b2 Nc2 Bd4 g7+ Ke8 Ra3 Qb4 e7 Nc3 Rg1 h1B Rg4 h2 Bh3 Bf3 Qf1 Bb6 Kf6 h1B Ned4 Ba6 c8B Bc4 Bg3 Bb3 Bc7 Rb8 a8Q Rb7 Qb8 Ra7 Ne6 Nd4 Nd8 Rb7 Nc6 Bd1 Qe2 f1Q+ Qf3 Qe2 Qf1 Rf8 g8Q Ra7 Qg7 Rg8 Ne3 Bd3 Qh6 Rb7 Nc2 Bhe4 Rh4 Rg3 Rg4 Bg2 Kg7 Bf3 Rg6 Bh5 Kg8 b1Q Kh7 f6 Kh8 Qb2 Rg4 d6 Bf5+ Kf7 Qc8 Ba4 Qe6+ Ke8 Qe5 Bab5 Qef4 Ra7 Rb3 Ba6 Q4f2 Bb7 Qh2 Ba8 Qd2 Kf7 e8B+ Kf8 Bf7 Rb7 B7e6 Ke8 Qh6 Ra7 Bd8 Re7 Bc7 Rg7 Bf7+ Kf8 Qhg1 Ne4 Na1 Bc4 B7e6 Ke8 Rf3 Bdb3 Qh2 Nc3 Nc2 Bd3 Bf7+
rbq5/2Brn3/Np1p4/3BQ1bN/kpb1R2B/nq2R2Q/r1Q2r2/r1B3K1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 e5 h4 g5 c4 d6 f4 Kd7 Kf2 Kc6 c5 d3 h5 e3+ Kg2 g3 h6 e2 h7 e1R f5 e4 a5 Kb5 f6 g4 c6 e3 a6 e2 a7 d2 c7 Be6 c8Q Nd7 f7 Ne5 Ra4 Bc4 Qc2 d1Q Rh4 Bh6 f8B Ne7 Ra3 Bg5 Re3 Qd3 Kh1 Qb3 Nd2 Ka4 Bg2 Rf1 Bd5 e1R Ne4 g2+ Kh2 Rf6 Nh3 Re2 Kg1 Rff2 Nf4 Qe8 Qf5 Qc8 Nh5 Rg8 h8B Rg7 Qe6 Rgf7 Bf6 Rh7 Kh2 g1B+ Kh1 g3 Qh3 N5g6 Bd4 Ne5 Bb6 Rd2 Bc7 Rg7 Qc3 Ra2 Rf4 Bd3 Rg4 Nc4 Qc2 Na3 Rh4 Bc4 Nc5+ Kb5 Na6 Ka4 Rhe4 Ng6 Be7 Ra1 Rf4 Rb8 a8Q Rf3 Be4 Bh6 Bed8 Rd7 Bh4 Bg5 Rf7 Ne7 Bd2 Rf5 Qb2 Bf2+ Re1 g2+ Kh2 Ra2 Qe5 Ba7 Re3 Rf1 Rf4 g1R Bf3 b6 Qae4 Ra8 Qc2 Rfa1 Bc1 Rf1 Bd5 Rf2+ Kg1 Bb8 Rfe4
B2Q1k1r/q1B3N1/p2R2RB/K1BN1p1b/4p1r1/1Q1qbn1n/1n2b3/1R2n1n1 b - - 0 1 illegal: No proof kernel
2qB1KB1/2Rr1b2/pb3p2/q1QR4/NBq2qB1/q1R1Q3/pN1n2kb/5rn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Ke4 g5 Kf5 Kd5 h4 a6 b4 d3 c3 g3 e3 f3 h5 f2 h6 g2 b5 a3 h7 d2 b6 a2 b7 g4 Bb2 g3 Qg4 d1Q Be2 f1Q+ Nf3 g1B Qg5 g2 Rh5 Qd4 Ba3 Qc4 Bb4 Nc6 b8R Bc5 Rb7 Nf6 Rc7 Rf8 h8B Ne4 Bf6 Bh2 Qf4 g1Q Ne5 Ba7 Nd3 Qg3 Bg4 Bb6 Nb2 Nd2 Rg5 Qe8 Bd8 Ne5 Kf6 Ra7 Kg7 d6 Qf2 Ke4 Qe2 Nef3 Rd5 Be6 Qf2 Qcc6 c4 Ng1 c5 Qed7 Qe2 Qc8 Qe1 Qa4 c6 Qa5 Qc1 Qgf4 Qc5 Bd7 Be6 Kf3 e4 Be8 e5 Kg2 Nc3 Q1c4 Nca4 Rb7 Rd1 Ra7 Rd3 d5 Rc3 d4 Bg4 d3 e6 Rb7 e7 Ra7 Rd7 Rc7 Rdc1 Ra7 Rd5 Rd7 c7 f6 Rd4 Bf7 e8Q Rh8 Qe3 Rh3 Rd6 Rf3 Rd5 Rf1 Be6 Nb3 Kf8 d2 Bg4 d1Q Be6 Nd2 R1c2 Bh5 Bg8 Bf7 Rc1 Qdb3 R1c2 Qa8 c8B Qa3 Rc1 Rc7 Bg4 Qc8 R1c2 Rd7 Qb5 Qce4 Rc7 Qd4 R2c3 Qc4 Qbc5
1bq1bbQ1/2NRpN1q/2K4N/1N3pB1/3pQ2R/Q1nr2k1/n5b1/r1b2B1r b - - 0 1 illegal: No proof kernel
QR2K3/1q2p2R/rb1N3k/1Npqr1rr/B1p1B2b/8/2R1n1R1/BQn2br1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 h5 f4 h3 a4 b3 g4 h4 d4 h2 g5 b2 d5 b4 d6 e3 d7 h3 Ke6 b3 a5 e2 a6 e1B a7 Nf6 Be2 Nd5 Ra6 Rg8 Nc3 b1Q Nb5 b2 Nd6 Bg7 Nf3 Nc3 Nd4 Bh4 Ra2 Nc6 N4b5 Bd4 f5+ Kg7 g6 Ne5 Qf1 Bb6 Bd1 c5 Ba4 Ne2 Bf4 Nd3 Be5+ Kh6 Kf7 Bb7 f6 Ndc1 g7 Bg2 Qd1 Qe4 Qc2 b1R Ba1 Qc7 d8R Bf1 Rb8 Qcb7 Qd1 Rb3 Rc2 Re3 Qe1 Qd3 Qb4 Re5 Qb1 Rh8 g8B Qdd5+ Ke8 Rg5 Rg1 h1R f7 h2 Rg2 Rg1 f8R h1R Bh7 Rh3 Be4 Re3 Bf3 Ree5 Be4 Rh7 Rg8 Rhg7 Rf8 Rh5 Rf7 Rgg5 Rd8 Rc8 a8Q Rc6 Rc8 Bd8 Rb8 Ra6 Rg7 Bb6 Rh7#
KBNrb1Br/2pq1Q2/p2NR1Q1/1n2B3/n3r2R/1N2kp1n/7b/2qnnN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 g4 h5 g5 f5+ Ke5 a3 e4 f3 g6 f4 d3 c3 g7 f2 Qf3 c2 Nd2 a2 Ne2 h3 Ng3 Nf6 g8N h4 Ne7 Bd7 Nc8 h2 b3 a6 Bb2 h3 Re1 c1Q d4+ Kb4 d5 Kc5 d6 a1N Qd3 Be8 d7 f3 Re2 Nc2 b4+ Kc6 b5+ Kc5 b6 Bd6+ Ke6 Nd5 b7 Nb6 e5 Ne1 Qg6 Nc6 b8B Na7 Nb3+ Kc4 Qf7 Kd3 Bc3 Na4 Kd5 Rh4 e6 Re4 e7 Nb5 Kc6 Bf4 Kb7 Be5 Ra2+ Ke3 Bc4 f1N Rd2 Bf4 Rd6 Be5 Re6 Bf4 Rg1 h1N Be5 Nf2 Rh1 h2 Qg6 Nh3 Bd5 Bf7 e8Q Qe7 d8N Qd7 Qe7 Be8 Qeh7 Kd3 Nf7 Ne3 Nf1 Nd1 Nfd6 Bg3 Rg1 h1R Qhf7 Bh2 Rg4 Ke2 Rh4 Kf2 Ne7 Ke2 Ba7 Rc8 Bb8 Rd8 Ka8 Kd3 Nec8 Ke2 Ng3+ Ke3 Nf1+ Kd3 Rh8 Bg1 Qff6 Ng5 Re7 Rh5 Bf7 Nh3 Bg8 Bh2 Re6 Rh4 Rh5 Ke2 Qff7 Kf2 Rg5 Rh8 Rh5 Ke2 Rh4 Kf2 Ng3 Ke3 Nf1+
Q1n1q1RB/p1bb1p2/2kN4/R2p3N/q1b1B2R/2Q2r1r/1K1nN1n1/3bR1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 g4 d3 Kc3 d2 b4 h3 e4 f3 g5 h4 b5 f2 g6 a3 e5 a2 g7 h2 e6 h3 e7 Nh6 g8Q Nf5 b6 Nh4 b7 Nc6 b8R Ng2 Qe1 d1B Bd3 f1N Rb2 Nd2 Be4 Rb8 Rb4 d5 Rb5 Kd7 e8R Ne7 Ba3 Kc6 Bb2 Bd7 Ne2 Nc8 Ng3 Bc5 Nh5 Bg1 Ra5 Rb7 Rf8 Qe8 Qe3 Rh7 Qh8 Be2 Rg8 Bc4 Qg3 Rh6 Qb8 Rf6 Qa8 Rf1 Na3 Rf5 Re1 a1B Nb5 Rf4 Qd4 Rf5 Qd3 Rf3 Nd4+ Kb6 Ne2 Kc6 Qb8 Rc7 Kb4 Rb7+ Ka3 Rb5 Bg7 Be5 Bh8 Bc7 Qc3 Rb3+ Ka2 Ra3+ Kb2 Bgb6 Rhf1 h1Q Rf2 h2 Qa8+ Kd6 Rff1 Rh3 Rf4 Bg1 Qg3 Rf3 Rh4+ Nf4 c3 Qg2 Qg7 h1B Qd4 Qg4 Qe3 Ba2 c4 Ng2 Qc3 Qf4 Ra4 Kc5 Ra3 Kb6 c5+ Kb5 c6 Bc4 Ra5+ Kb6 Bg6 Qfe4 Ka3 Qc2 Be4 Qa4+ Kb2 Bf4 c7 Re3 Qf6+ Nd6 Qc8 Kc6 Rf1 Ne1 Neg3 Bf3 Qc3 Bd1 Ne2 Ng2 Re1 Ref3 Qa8+ Nb7 c8N Bc7 Qb8 Nd6 Qg7 Nf5 Nd6 Ne7 Qc3 Nc8 Qa8+
R2r1n1q/B3BNqN/K7/1r1b1b2/2nbr1p1/1QQ2p1B/1B2npkn/2R4R b - - 0 1 illegal: No possible last move
R5R1/6n1/QrB1nq1r/b1Rb2nn/1Bk1p2K/4q1Np/pq2R1b1/1N4QB b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 Kf2 Ke6 b4 Kd5 g4 a5 g5 h5 c3 e5 b5 d3 b6 d2 g6 e3+ Kg2 e4 Kh3 a3 f5 a2 g7 e2 f6 e1N f7 a4 b7 a3 Bg2 Na6 b8R Nc7 Rb7 Rb8 Ne2 Nf3 Nf4+ Kc4 Nd3 Rh6 Rb3 Bb4 f8R d5+ Rf5 d4 Qe1 d1N Bg5 Qf6 Nf4 d3 Qg1 d2 Nd5 Ba5 Rb2 Rb6 Ne7 Bb7 Rfb5 Ne6 Nf5 Ne3 Ng3 d1Q Re2 Nf5 Bd2 Bd5 Rh2 Qb3 Bh1 Qb2 Rhg2 Qg5 Be1 Nf6 g8B Qe3 Bf7 Nfg7 Be8 Qec1 Bc6 Nfg5+ Kh2 h3 Bd2 Kd3 c4 h4 c5 Nfh5 Bb4 Qf4 Bb7 Qfd2 c6 Qe3 c7 Kc4 Bc6 Qf6 c8Q Qb2 Qa6 Qf6 Qf2 Qb2 Kg1 h2+ Kf1 h3 Qg1 Nd4 Rgf2 Nde6 Rf8 Qed2 Kf2 Qdc1 Bf3 h1B Rd8 Bg2 Rg8 Bf1 Bh1 Bg2 Nf1 Nf6 Kg3 Nfh5+ Kh4 Qe3 Nc3 Kd4 Ng3 Kc4 Rc1 a1Q Nb1+ Kd4 Rf1 a2 Rff8 Kc4 Rd8 Qf6 Ra8 Qab2 Rc5+
nB1K1n1b/2r2N2/RBqR1R2/2b5/1k1pn1BR/3r2pp/Qq2n3/1Q1bN1q1 b - - 0 1 illegal: No proof kernel
NRQ1Rb1B/bq6/B5kQ/2Qrb3/q1p2RNQ/1p1nq3/r1n1p2K/1br5 b - - 0 1 illegal: No possible last move
N2k3B/1R3nNn/Q1r1r1R1/R3R1nB/pq3pK1/2N1p3/q4qb1/b1Q2nr1 b - - 0 1 illegal: No proof kernel
N2k1r2/rB2n1N1/b1R1qbbq/4Q1Qp/p1rpn3/Q1Q5/bRq4N/K1B5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 d5 b4 a5 g4 f5 c4 f3 Kc2 f2 Kb2 d3 e4 a3+ Ka2 f4 b5 d4 g5 f3 c5 d2 c6 a4 e5 h3 e6 h2 g6 Qb6 e7 Bf5 c7 Nc6 g7 Nf6 g8Q Ra7 Qg5 Bg7 Bg2 f1B Qb3 d1Q Nc3 f2 Nf3 Bc4 Nd5 f1B Rb1 Rf8 Rb2 Qc2 Ka1 a2 Qa3 Ne4 Rg1 h1R Nh2 h5 Bf3 Qa6 b6 Bf6 b7 Bg6 b8Q+ Qc8 Qb5 Qe6 Nb6 Bb3 Qbe5 Ba6 Na8 Kd7 e8N Ne7 Ng4 Rh3 Bh1 Rc3 Nh2 Rc4 Ng7 Qh3 Rf1 Nf2 Bd5 Qe2 Qge3 Bh4 Ne6 Rb4 Rd2 Ne4 Kb2 Qhg4 Rf3 Bf6 Ng7 Qe6 Bb7 Qg2 Rdf2 Qg5 Rc2 Qh6 Q3g5 Bd5+ Rb3 Bdc4 Rc3 a1Q+ Kc2 Bd5 Rb2 Ba2 Rc4 Ng8 c8Q+ Ke7 Qc6 Kd8 Qcc5 Ne7 Qa5+ Kd7 Rc6 Rc4+ Q5c3 Kd8 Bf4 Qg1 Bd2 Qg2 Kc1 Bb3 Kb1 Ba2+ Ka1 Qe2 Be3 Qc2 Bc1
Nn3q2/6r1/1rN4Q/b1Npn1q1/bqNp1p1n/1BB4b/1R1RQbk1/1K1Q4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 h4 Kd6 e4 Ke5 c4 d5 Kc2 b5 a4 f5 a5 g5 c5 b3+ Kb2 f3 h5 g3 a6 g2 c6 f2 h6 g4 c7 b4 a7 g3 h7 Ne7 Bg5 Nec6 Nc3 Rg8 h8Q+ Rg7 Bb5 f1Q Kb1 b2 Bc1 Qg5 Nh3 g1B Nf4 g2 Ba4 Bf2 Bd2 g1N Na2 Nf3 Ne6 Nh4 Bb3 Bc5 Be1 Bb6 Bc3 Ba5 Nc5 Kf4 e5 Kg3 e6 Ne5 e7 Kg2 e8Q Bd7 c8N Ba4 Kc2 b1B+ Kb2 f4 Nd6 Qa6 Nc4 Qc8 Qh6 Bf5 Rb1 Bh3 Kc1 Qcd8 Rb2 Qd6 Kb1 Qf8 Bc2 b3 Nb4 Rf7 Nc6 Rg7 Ra2 b2 Bb3 Na6 Qe7 Rb8 a8N Rb6 Re1 Nb8 Re2 Ng4 Qe8 Ne5 Rd2 Kg3 Bc2 Nd3 Qee1 Ne5 Qee2 Bb5 Ba4 Kh2 Kc2 Kg2 Kb3 b1Q+ Ka3 Qe4 Kb2 Qc2+ Ka1 Qb3 Rab2 Qb4 Bb3 Ba4 Kb1
1q1b1KNn/nB3N2/2b4r/1pr1N3/7p/RNbpB1Q1/R1Qbk3/2rq2nR b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 Kg4 c5 h5 c6 e5 c7 d5 g3 b5 a5 h3 f5 b3 f6 b2 a6 h4 f7 h2 a7 e3 Kd3+ e2 Qe1 e4+ Kd2 e3+ Kd3 Nc6 Ra6 Bd7 c8N Nge7 Ra4 Rh6 Nb6 Rc8 a8R Na7 Nc4 Rc5 Nbd2 b1N Ra3 Nc3 Bg2 Qb8 Nh3 Bc6 Ng5 Ng6 Nb3 Be7 f8Q Bd8 Qff2 Nh8 Qeg1 e1B Nf7 e2 Be3 Bd2 Nce5+ Kh5 Qc1 e1B Qc2 Ne2 Ra2 Ng1 Be4 Nc8 R8a3 Bc3 Nd7 Kg4 Nde5+ Kh3 g4 Bed2 g5 Na7 Nd7 Kg4 g6 Qc7 g7 Qb8 Qf6 Kg3 g8N Kg4 Nde5+ Kg3 Bf5 Kg2 Qg5+ Kf1 Bc8 Ke1 Qb2 Kd1 Bb7 Ke1 Kc2 Ke2 Qg3 d3+ Kb1 d4 Qc2 Bb4 Kb2 Bba5 Ra4 Bc3+ Ka3 Nc8 Ra5 Na7 Ba8 Rc4 Ng4 Kf1 Qb2 Be1 Nge5 d2 Bb7 d1R Qc2 d3 Ra6 Bd4 Ra4 Rc3 Kb4 Rc1 R4a3 Bd2 Nf6 Ke2 Ng8 Nf3 Rd1 h1Q Rf1 Qh3 Rg1 Qf1 Rh1 Ng1 Nc4 Be5 Kc5 Be8 Kd5 Qd1 Kc5 Bef6 Kd5 Bc6+ Ke6 Be4 Kd7 Bd5 Ke8 Bc6+ Kf8 Be5 Nca5 Rc5 Nc4 Bc3 Nce5
2qk2qq/nrR1bb2/1nR1NB2/pQ1q2NB/2p5/2KQr2p/1R1Nr3/1N2b3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 h5 b4 c5 d4 a5 Kd2 f5 e4 c3+ Kc2 c4 d5 h3 b5 f3 g5 h2 g6 h4 e5 f2 e6 f4 d6 h3 e7 a3 g7 f3 b6 a2 b7 Nd7 b8N Ra7 Ba3 Rb7 Nd2 Nb6 Ne2 Be6 Nc6 Qc8 Bb2 Bf7 Rb1 a1Q Rg1 h1Q Rg6 Kd7 e8R Ne7 Ncd4 Nc6 g8Q Na7 Ne6 Be7 Ng5 Rh5 Bg2 f1Q Rf6 f2 Bf3 Rh7 Bh5 Qfg2 Qg6 f1R Qd3 Rf2 Rg8 Be8 Rg7 Kd8 d7 Bf7 Rc6 Qg4 Qg1 Qd5 Qgg3 Rh6 Qe5 Re6 Qef5 Re3 Rh7 Qdd4 Qb5 Qh8 Rg7 Qa3 Ba1 Qc5 Rb2 Qe5 Ng1 Qge6 N1f3 Q5d5 Rh7 Rfe2 Rg7 Re1 Nb1 R1e2+ Nfd2 Qg6 Rh7 Qgg8 Nf3 Bh4 Ng5 Be1 Rg7 Ke7 d8N Ke8 Kc1 c2 Nde6 Ke7 Ra2 Kd7 Kb2 c1B+ Kc3 Ba3 Rb2 Be7 Rb4 Bc5 Kc2 Ke8 Rb3 Bg6 Rgc7 Bf7 Bf6 Bf8 Kc3 Be7 Nd4 Kd8 Rb4 Qa8 Rb2 Qc8 Nde6+
1k1B2bN/1R5Q/4qRpr/1N4K1/Bq1n2n1/qpb1B3/2nNprNq/b3Q3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 b5 h4 d5 c4 Kd7 a4 Kc7 f4 e5 h5 d3 Ke3 g3 h6 d2 f5 g2 f6 b3 a5 b2 a6 b4 f7 d4+ Ke2 d3+ Ke3 g6 c5 Qd7 h7 Bg7 f8N Nc6 a7 Nd4 c6 Qe6 Nd7 Nf6 Qe2 d1Q Ra6 d2 Qe1 Qa4 Nf3 Qa3+ Bd3 d1Q Nbd2 b1Q Nh4 Qdc2 Rf1 g1N Rb6 Ngf3 Ng2 Bb7 Rf2 Raf8 a8Q Qca2 Qa7 Nc2+ Ke2 e3 Bb5 b3 Ba4 e4 Ne5 Ng4 Nf7 Ba1 Rf1 Kc8 c7 Bd5 Rb7 Qbb2 Rf2 Qb4 Rf1 Qb2a3 Rf2 Rhg8 h8B Rg7 Rf1 Rh7 Bf6 Rh6 Nh8 Rf7 Bd8 Rf5 Rf2 Nfd4+ Kf1 Rf8 Rf6 e2+ Kg1 Ne5 Kf2 e3+ Kg3 Ng4 Kf4 Bc4 Qh1 e1B Kg5 Q2b2 Qa5 e2 Qh3 Q2c3 Qh1 Qbd6 Qb4 Qh2 Qe7 Qcb4 Qh7 Qee7 Qg1 Bg8 Qf1 Qe6 Qh1 Bg3 Qe1 Bd6 Nf3 Be5 Be3 Nc6 Nd2 Bec3 Qe7 N6d4 Qh7 Rf7 Rb5 Kd7 c8N Kc6 Na7+ Kd7 Be7 Kc7 Rb6 Rf8 Nb5+ Kc8 Bd8 Rf7 Ra6 Rf8 Rf7 Kb8 Rg7 Rf2 Rd6 Qd7 Rf6 Qe6 Rb7+
1n2r2r/rqQ2B2/B4KpR/pn2B3/1bN2p2/1qqB3R/4bn2/N1krQ2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 d5 e4 f5 c4 a5 b4 g6 c5 d3 c6 a3 b5 d4 h3 a2 c7 d2 b6 g3 b7 d3 Bb2 g2 Na3 f3 Qe1 d1R Nc2 d2 Ne2 g1R Ng3 f2 Bd3 f1Q h4+ Kg4 h5 Kf3 h6 f4 h7 Qh3 Bc3 Ne7 Kf6 Qd5 e5 Nec6 e6 Nd4 e7 Bg4 e8B Nb5 c8B Bb4 Be5 Ra7 Bf7 Re8 Rb1 a1Q h8N Qc3 Na1 Qg2 Rh2 Qdb3 Rh6 Rh1 Rb2 Rh4 Nh1 Rh5 Ra2 Rh2 Ra3 Bh5 Be2+ Ke3 Bec4+ Be2 Bd3 Na6 b8Q Qb7 Qc7 Nb8 Rh7 Rc1 Rh6 d1N Ng3 Nf2 Nh1 Q7d5 Ba6 Rd1 Bg8 Rh5 Nf7 Qb7 Nd6 Rh3 Bf7 Rh5 Qf1 Kd2 Nc4+ Kc1 Qe1 Rg5 Rh3 Rh5 Ra2 Rhh8 Rh6 Bg4 Re2 Bh5 Re3 Be2 Reh3
8/nbQQKnk1/5p2/rB1R1NBq/3QB2R/2QN1ppr/r2n3q/q3n1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 h4 b5 a4 g5 e4 f3 Kg3 b3 c4 b2 c5 d3 a5 d4 a6 b4 h5 d2 c6 b3 h6 d3 c7 Qd6+ e5 Bb7 c8B Nc6 h7 Nh6 Nh3 Na7 Nc3 b1N Bf5 b2 Nd5 Be7 Qb3 Kf8 Qc3 d1R Nhf4 d2 Bb5 Kg7 e6+ Qe5 Ra3 Bc5 e7 Bg1 e8Q f6 Ra5 Nf7 Ne3 Na3 Rh4 b1N Be4 Nc2 Qd7 Ne1 Qcd4 Qf5 Nd3 Qg6 Qc7 Qh5 Qdd7 Rhc8 Qc3 Rc5 Qcd4 Rc2 Qc3 Ra2 Qcc7 Nc6 a7 Rh8 a8Q Na7 Ba3 Rc1 Qad8 Rc5 Bc1 d1Q Qd4 Qc2 Q8d7 Nd2 Nf5+ Kf8 Ra4 Qb1 Qc3 Qa1 Rd4 Rd5 Bc6 Rb5 Rd5 Rba5 Bb5 Bc5 Kh2 g3+ Kh3 g2 Kg3 g4 Kf4 g1Q Qd4 Rg8 h8Q g3 Qh7 Bb6 Qcc3 Rh8 Qdc7 Nh6 Qhd7 Qh2 Qa4 Bg1 Qad4 Nb3 Bd2 Nf7 Be3 Qh7 Kg4 Nd2 Bg5 Qh6 Ng7 Qh5+ Kf5 Rh7 Ke6 Kg8 Nf5 Rh8 Nd6 Kg7 Ke7 Qg6 Rf4 Rh3 Rh4 Qh5 Nf5+
1n2bbQ1/2q2k2/N2b1p2/2q3R1/2Npn3/Bp2b1rR/3QQ2q/1BQKR1rr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 d5 e4 g5 c4 b5 a4 b3 h5 b2 c5 d3 c6 d2+ Ke2 b4 h6 b3 h7 g3 e5 g2 e6 g4 a5 d4 c7 g3 e7 Bd7 c8R Nf6 a6 Ne4 a7 f6 Rh3 Kf7 Nf3 g1B Na3 b1Q Rc5 g2 Rg5 Qc2 Nc4 Be3 Ne1 g1B Nd3 Be8 Ba3 Qc7 Nb4 Bh2 Qc1 d1R+ Qd2 Rg8 h8Q Qc3 Bg2 Rg1 Re1 f3+ Kd1 f2 Na6 Bd6 Bf1 Qb4 Bd3 f1Q Bb1 Qf4 Qc1 Qh2 Qd2 Nd7 Qh6 Rc8 a8Q Qbc5 Qc1 Nb8 Qh8 Ng3 Qg2 Ne4 Qgd2 Rh1 Rd5 Rgg1 Rg5 Rd8 Rh4 Bb5 Qh5+ Ke6 Rh3 Bh6 Qhe2 Rg8 Rf5 Bf8 Rd5 R8g3 e8Q+ Bfe7 Q8h5 Be8 Rg5 Bf8 Qh8 Kf7 Qg8+
K1RnN2q/2N2r1b/1N1r1pB1/5Qb1/1Bp5/1p6/1nrb2Qq/Qq1k1RrQ b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 a4 b5 g4 h5 g5 b3 d4+ Kb4 a5 c5 a6 c3 d5 h3 e3 c2 g6 h2 g7 h4 a7 b2 d6 Kb3 Kd5 f3 e4 f2 d7 h3 e5 c4 e6 b4 e7 Rh6 e8N Nc6 Qd4 Rd6+ Kc5 Nh6 g8Q Nf5 Qe5 Be7 Bf4 c1B Nf3 Kc2 Ng5 b3 Bd2 Kd1 Bd3+ f1R Bb4 Bd2 Ne6 Ne3 Qf5 Bg5 N6c7 f6 Kb6 Rg1 Ra4 Bb7 Qgd5 Qc8 Qg2 Nd8+ Ka5 Rb8 a8Q Be4 Qa6 Rb7 Nc3+ Ke1 Ra3 b1Q N3d5 Nd1 Nb6 Nb2 Qa8 Kd1 Ka6 Qb8 Ra5 Qc8 Rc5 Qb8 Qe6 Bh7 Bg6 Rf1 Rg1 h1R Qf5 h2 Qa7 Re1 Rf1 Rg1 Rc6 h1Q Qa8 Ne6 d8Q Qh2 Qe7 Nd8 Qee4 Qc8 Qh1 Qb8 Qeg2 Qc8 Nb5 Qb8 Rc8 Rbd7 Nbc7 Rf7 Rf4 Re2 Rf1+ Be1 Kb5 Rc2 Qa1 Qb7 Ka5 Qf3 Ka6 Qfh5 Ka7 Q5h3 Rf2 Bed2 Ka8 Qh6 Rf3 Qf8 Rf4 Qh8 Rf1+
3RK2N/1B3Q2/4QpB1/R2n2kN/pBpqr1rQ/2r2qb1/n3Q1qn/5q1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 d4 a5 b4 h5 g4 h3 b5 h4 d5 h2 b6 f3 g5+ Kg6 Ke5 c3 e4 h3 d6 c2 b7 a3 d7 c4 Nd2 f6+ Ke6 f2 e5 a2 Bg2 f1N Ne2 Na6 b8Q Ne7 Ba3 c1R Qc7 Rc3 Ng3 Bh6 Nh5 Qf8 Bb4 Nd5 Ne4 Qg7 Qe2 Rf8 Nd6 Rg8 Nf7 Bb7 d8Q a4 Kd7 Ra7 Rd1 a1Q e6 Kf5 g6 Bf4 e7 Bg3 Nh8 Kg5 Rg1 h1Q Qdc8 h2 Qb6 Re8 Qbe6 Qb2 Be4 Qf3 Qh3 Qg8 g7 h1Q Qc6 Qa1 Qce6 Nh2 Qf7 Qhg2 Bg6 Qh7 g8B Qg7 Rd3 Qaf1 B8h7 Rg8 e8Q Ba8+ Kd8 Re7 Be4 Qgf2 Bhg6 Qd4 Rh1 Re5 Qfe6 Qb7 Rd2 Rg7 Q8f7 Q3g2 Ke8 Qgf3 Bd6 Nab4 Rd1 Na2 Bb4 Nb6 Bd5 Re4 Bc6 Nd5 Rg1 Qc7 Bb7 Qcf4 Rg2 Q4g4 Rf2 Q3g2 Rf4 Q4f3 Rf5+ Kh6 Bh7 Rgg4 Bg6 Nf4 Rc5 Nd5 Ra5 Kg5 Qb2 Qb6 Rc1 Qgf2 Ng7 Q3d3 Ra6 Nf4 Bc8 Rd4 Nh5 Bh1 Rd1 Q2g2 Qbe2 Re4 Bb7 Qdf3 Rd8 Nd5 Ra5 Qd4 Qh4+
Nb1RB1RN/kRRq4/5pbK/3p1Q2/r6n/r2q1qp1/b2B1Q2/1b1nQ1r1 b - - 0 1 illegal: No possible last move
QB6/R4r1R/Q2q1pk1/bBpq3N/K1BNb3/1r2Q3/nr2p2Q/2nr1q1n b - - 0 1 illegal: No proof kernel
k4b1n/n2rQ1N1/bqN1p2R/2p1N3/rp1NR1K1/1B1nbQR1/q4r2/B3r3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 g4 Kc6 d4 b5 f4 Kb7 a4 h5 a5 c5 f5 b3 g5 e3 Kf3 b2 g6 h3 f6 e2 d5 e1R f7 c3 d6 h4 d7 h2 g7 c2 Ne2 e6 Nd4 h3 Ra4 Nh6 g8R Qb6 Nd2 b1Q Nc4 Nc6 Ne5 Rh7 Bc4 Qa2 Bb3 Na7 Bb2 c1B Rg3 Be3 d8N+ Kb8 Qd3 Ba6 Ba1 Rg7 Rc4 b4 N8c6+ Kb7 Nf5 Re2 Re4 Rc2 Nfd4 Rh7 Rd1 h1N Qe2 Nf2 Rh1 h2 Qd1 Bg7 f8Q Nd3 Qf1 Nf7 Kg4 Rd2 Qf3 Nh8 Qd8 Bf8 Qe8 Rd7 Qe7 Bc4 a6+ Kc7 Rhg1 h1R R1g2 Re2 Rh2 Rf2 Rhh3 Re1 Rh6 Nc8 a7 Kb7 Rh1 Ba6 Rh6 Rb8 a8N Na7 Nc7 Ra8 Ne8 Bc4 Nf6 Nb5 Nh7 Ra4 Nf6 Na7 Ne8 Ka8 Ng7 Bb5 Qh4 Ba6 Qe7
1n2QBB1/5Q1n/n1pp2N1/5Bqb/2r2N2/r1bq1pQ1/3nQ1RK/k1Rr1q2 b - - 0 1 illegal: No proof kernel
1n6/NB2rp1K/2qQRN2/1b1b1r2/p2np1Rb/1q2B1BB/2Q3b1/2qn1kQ1 b - - 0 1 illegal: No proof kernel
3nbN2/1rnq1p1K/1QB1R3/p4k1B/qp1rQb2/rR3R2/2nb3B/rN3R2 b - - 0 1 illegal: No proof kernel
K2QQ3/3pr1b1/5RpN/1r2N3/bBr2pq1/n2rN3/1n1kbQ1q/2n2RNB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Ke6 h4 Kd5 c4+ Ke4 c5 f5 h5 b5 e3 b3 a5 f3 a6 b4 h6 b2 h7 g3+ Ke1 g6 Kd2 f4 a7 f2 c6 d3 c7 b3 Kc3 d2 Kc4 g2 Kb5 Na6 Kb6 Bb7 Rh5 Qg5 c8Q Qg4 Rg5 Ne7 Rb5 Nb4 Qd8 Nd3 Qc2 d1R Na3 b1R Nc4 b2 Rf5 Bg7 Bd2 Bc6 Ne5 Rc8 a8N Re8 Ka7 Ba4 h8N Rc4 Nhf7 Nd5 Nh6 Nc3 Nb6 Na2 Ka8 Re7 Rf6 Nc1 Bb4 Rd2 Be2 f1B Bd1 Be2 Nd5 Bf3 Be2 Rd1 Bf1 Be2 Qd2 Rc7 Qe1 Rc4 Qf2 Rd2 Nh3 g1Q Bg2+ Qf3 Bh1 Qh2 Ng1 Qfg2 Nef3 Qg4 Nf7 Ne5 Nh6 Kd3 e4 Kc2 Ne3+ Kd3 Ba3 Kc3 Bc5 Ned3 e5 Rd1 e6 Rd2 Ra2 Rd1 Ne5 Kd2 Nef5 Ra1 Ra3 b1N Ne3 Nb2 Rc3 Na3 Bb4 Rf7 e7 Rb1 e8Q Re7 Bd6 Nbd3 Bc5 Rb5 Bd6 Nb2 Rb3 Nbd3 Rb1 Nb2 Ra1 Kc3 Bc5 Rd3 Rb1 Kd2 Ra1 Nb3 Rf1 Nc1 Bb4+
Q3N1k1/2p4b/q2r1n2/nNK2R1r/1rB2Qq1/b5p1/5Np1/QbB1RrqQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 e4 b5 a4 f5 h4 Kf7 d4 g3+ Kf3 g4+ Ke2 f3+ Ke3 b3 e5 f2 a5 c3 a6 c2 d5 b4 Kd4 f4 a7 b2 h5 b3 h6 g2 h7 g3 d6 f3 d7 Qg5 d8Q Ba3 Rh6 Nc6+ Kc4 Na5+ Kd5 Bf5 Qd6 Rd8 a8Q Qg4 Nc3 b1R Nb5 b2 Bc4 f1R Rh5 f2 e6+ Kg7 e7 Nf6+ Ke5 Be4 Nh3 Bg6 Q6d2 Rd6 e8N+ Kf8 Qf4 Be4 Be3 c1Q Rf5 Bd3 Bd5 Qc6 Kd4 Qa6 Qe1 Rd1 Bc1 b1B Qe5 Rd2 Qe1 Rb2 Qc3 Rb4+ Kc5 Re1 Bc4 f1Q Nf2 Qg1 Qb2 Rf1 Qc3 Rg8 Qce5 Rg5 Qe1 Rh5 h8Q+ Qg8 Qh7 Qg4 Qd1 Rg5 Qh1 Rh5 Ra2 Be4 Re2 Bec2 Re6 Kg8 Qdd4 Bd3 Qa1 Be4 Rfe5 Bg6 Rf5 Bh7 Re1+
NN2b2R/p1QB1Nr1/3b4/2nbq1N1/pq4Q1/1r2Bp1K/nnq1B1R1/2kb4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 e4 Kf6 b4 Kg5 g4 h5 Kg2 f5 c4 d5 e5 h3+ Kh2 d3 e6 d2 c5 f3 e7 Kf4 e8B Ke3 b5 d4 g5 h4 c6 f2 b6 d3 g6 f4 c7 Ne7 g7 Bd7 c8N Qc7 g8Q Nec6 b7 Nb4 Qdg4 Bd6 Qa2 N8a6 b8N Qc2 Bh5 Rg8 Be8 Nc5 Ne2 Rg7 Ba3 d1B Na6 d2 Nec3 Rb8 Qd5 Na2 Qc6 Rb3 Be2 f1Q Bc1 Qe1 Qc7 Bc6 Na3 Bd5 B2b5 Bc6 Bh5 Be8 Bd7 Kd3 Rg1 Qe5 Nb8 Ke3 Nc4+ Kd3 Kh1 h2 Kg2 h1B+ Kh3 Bd5 N4b6 Ke3 Rg2 f3 Na8 Kd3 Ne4 Ke3 Bf7 Kd3 Qe6 Ke3 Ng5 Kd3 Kg4 h3 Bg6+ Kc3 Bd3 h2 Be2 h1Q Rb1 Qg1 Kh3 Qgd4 Qg4 Qdf4 Ne7 Qb4 Ng8 Qd3 Nh6 Kc2 Nhf7 Qdc4 Bb2 Qce4 Bd4 Qg6 Rb2+ Kc1 Be3 Qc2 Rh2 Qcf5 Bc4 Be2 Kh4 Qd3 Bf2 d1N Be3+ Qdd2 Rc2+ Kb1 Bd3 Nb2 B3b5 Qd3 Rd2 Bd1 Rdg2 Qdc3 Be2 Qc1 Qc4 Qcc3 Kg4 Qc2 Rh8 Qa3 Kh3 Qb4 Bf2 Kc1 Qg4 Qg6 Bd4 Qc2 Be3+
2rNb1N1/p4r1Q/1N2n1p1/1BrQ2b1/N1bpqq1B/1n1Rb3/2Kn1R2/Q6k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 h4 Kf6 c4 Kf5 b4 Ke4 b5 d5 h5 f5 e3 d3 h6 a3 h7 g3 c5 a2 c6 g2 b6 g6 c7 f3 b7 f2 Bb2 f4 Na3 f3 Qe1 d4 Rh3 Na6 b8N Qh4 Bc1 Bd7 c8Q Be7 Nc6 Be8 Bb2 Bg5 Bc1 Nc7 Ne2 g1B Qd8 Nf6 Nc4 Rf8 h8Q Rf7 Nb6 Ne6 Qh7 Rc8 Qd6 Qf4 Nd8 Rfc7 Rb1 a1N Rb2 Nb3+ Kd1 d2 Qd5+ Kd3 e4 Ke3 e5 Rc5 Rg3 Qe4 Nc3+ Kf4 Bb5 f1R Rh3 Be3 Nca4 f2 Rf3+ Kg4 Rc2 Qf4 Rc3 Ne4 Kc2 d1Q+ Kb1 Qf8 Rd3 Qe2 Qc3 Qe1 Kc2 Ned2 Rf7 Kg3 Rf5 Ng7 e6 Qf7 e7 Ne6 Rf3+ Kg2 Ba3 Qf4 Bc1 Bc6 e8N Qe2 Nf6 Be8 Ng8 Kg1 Rh3 Qef3 Ba3 Q3e4 Rf3 Kg2 Qc7 Kh1 Qf7 R5c6 Be7 Rc5 Bf6 Rd1 Qg7 f1B Rf2 Be2 Be7 Rf1 Qh7+ Qh2 Rg2 Rf7 Rf2 Qh4 Bd6 Qh2 Bg3 Bf1 Bh4 Qf4 Kd1 Nb1 Qa1 N1d2 Rc3 Bc4 Rd3 Na5 Kc1 Nab3+ Kc2+
1k1R4/pB2Bb2/Q1rpr1b1/5Q1n/Nqn1nb2/4RK2/1b3pRR/1rq2N1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 f5 e4 h5 g4 f3 c4 a3 b4 f4 c5 d6 c6 d3 g5 h3 c7 Kd7 e5 a2 b5 h2 b6 h4 b7 h3 g6 d2 g7 Na6 b8R Nf6 g8R Bh6 Bb2 Nh5 Nc3 Qh4+ Rg3 Nc5 Rb5 Re8 Nd5 Re6 Qc1 d1B Ne3 Bc2 Qb1 Bg6 Qf5 Rb8 Bg2 Rb6 Rb1 a1B Re1 Rc6 Ne2 Bb7 c8B+ Kc7 Nc3 Kb8 Bc1 Bb2 Nf1 Bf7 Re3 Ne4+ Ke1 f2+ Ke2 Bg5 Kf3 Bg6 Na4 Bf7 Rg1 h1Q Rb6 h2 Rh3 Bh6 Rb5 Bg5 Rc5 Ba6 Bb7 Bd3 Bd2 Bh6 Ba5 Bg5 Bd8 Bc2 Be7 Bd3 Nd2 f1N Rb5 Nfg3 Nf1 Nd2+ Kf2 Nc4 Kf3 Ne4 Rc5 Rf6 e6 Qe1 Re5 Qb4 Rc5 Ra6 Rc7 Rc6 Rd7 Bc2 Bd8 Rh6 e7 Re6 e8Q Bh6 Qh8 Bg5 Qg7 Bh6 Be7 Bb1 Kg4 f3 Qgg6 f2 Kf3 Bf4 Qb5 Bh8 Qgf5 Bb2 Qa6 Bd3 Kg4 Bb1 Bf3 Bd3 Rg2 Qg1 Rh4 h1R Rh2 Bb1 Ng3 Qc1 Nf1 Nc3 Bd5 Bc2 Kf3 Rg1 Qf6 Bcg6 Qf5 Ne4 Rd8+ Rc8 Ke2 Qb1 Rg4 Ng5 Bh1 Ne4 Rgg2 Qc2+ Nd2 Rb1 Kf3 Qc1 Rd7 Rc7 Nf1 Rc6 Rd8+
1K1n2R1/RQQ3bQ/1Q3rk1/1BrNn1pb/n5NB/2pn4/rq1pn3/n3B3 b - - 0 1 illegal: No proof kernel
nQ1r1B1N/1Rp2Kb1/1p2N3/Qb2b2N/Qbq1k1R1/1B1N4/b5pb/r1n3r1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 e5+ Kg6 b3 h4 g3 a4 b2 f4 g2 d4 c3 f5 e3 h5 e2 h6 e1B a5 e4 h7 c2 a6 e3 a7 e2 f6 Bc3 f7 e1B Qe2 Nh6 Qe3 Nd7 Qf4 Qh4 Ra4 Nb6 Nh3 g1B Nd2 b1B Nf2 Bd7 Nd3 Bb5 Ba3 c1R Ne4 Bh2 Ng3 Ba2 Nh5 Nf5 Bb4 Bd6 f8Q Ng3 Qb8 Rd8 h8N Ne2 Kf7 Be5 Bf8 g5 Rb4 g4 Rg1 g3 Rb2 Kc4 d5+ Bcd4 d6 Kd5 d7 Bb4 Qd2 Ke4+ Rb3 Rb1 Bh3 Ra1 Be6 Nc1 Rb2 Bg7 Bb3 Bde5 Qc3 Bc5 Qa5 Bb4 Bd6 Rg8 d8N Qg4 Ne6 g2 Rf1 Rd8 Bf8 Qe2 Rf6 Qc2 Rg6 Qc4 Ne1 Rd1 Nd3 Rg1 Rg4+ Ke3 Qe8 Rd8 a8Q Kf3 Qb8 Na8 Rc2 Qe4 Rc6 Qc4 Ra6 b6 Ra7 Ke3 Rb7 Kf3 Rg3+ Ke4 Rg5 Ba6 Qea4 Bb5 Rg4+
1B1b1RR1/6Bb/Q2n1NB1/2bnp1N1/3brq1r/3K3n/Q1pB1b1p/k4nQ1 b - - 0 1 illegal: No possible last move
k2QqR2/b3r3/bq2Q2r/2pBN3/bb3B2/1Q1p2R1/2Np2b1/nQ1nNbK1 b - - 0 1 illegal: No possible last move
3R3K/2Bb4/N1qN1p2/2b2Brb/1p4rQ/Qk1rn1p1/1n1QNQ1b/1Rbr4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 a4 Kd5 d4 b5 e3 c5 h5 g5 a5 b3 a6 f3 Kg3 f2 h6 f6 h7 b4 a7 b2 Qd2 c3 Bh3 Kc4 d5 f1B e4 c2 d6 Qe8 e5 Bd7 e6 Be2 e7 Nh6 Qf4+ Kb3 Nf3 c4 Ra4 c3 Ng1 Na6 Qf2 Nc5 Na3 b1R Bf4 c1B Nb5 c2 Nc7 Rg8 h8Q Nd3 Na6 Rd8 a8Q Nb2 Be5 Bf3 Ne2 Bd2 Ra5 Rd1 Rd5 c1B Qh7 Be3 Qe4 Bc5 Rg1 Qf7 e8N Qe6 Rd2 Qd5 Qf4 Qc6 Re1 Bc8 d7 Bfd6 Rh1 Bb8 Bc7 Rg6 Nd6 Nf5+ Kh2 Ne3 Kg3 Rg7 Rd4 Rd3 Qa7 Rdg8 d8Q Bd7 Rd5 Be4 Rg1 Bg6 Qe4 Bh5 Qh1 Bd2 Rb1 Bc1 Qhe1 Rg6 Qd2 R8g7 Qh8 Rg8 Bg2 R6g7 Be4 Rd8 Bf5 Rgg8 Kh2 g3+ Kh3 g4+ Kh4 g2 Qh6 g1R Rd4 Bhe8 Qh8 Rg6 Kh5 Rg5+ Kh6 Bh5 Kh7 Rd1 Re4 Rdg8 Re8 g3 Qa8 Bba7 Rd8 Bab6 Qg7 Rg4 Qh6 R8g5 Kh8 Bf7 Rb8 Bd4 Qf1 Nd5 Rd8 Bbc5 Nb8 Bg1 Qh4 Bh5 Qf2 Ne3 Qa1 Bh2 Na6 Qd5 Qa5 Qc6 Qa3+
nb3Nk1/2bR4/n2BRp1q/1prR1B1n/2QbN3/2p4b/1Q1n2BB/1rn1K3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 g5 d4 b5 h4 c5 e4 b3 h5 b2 a5 f3 h6 c3 h7 f6 a6 Kf7 a7 c2 e5 f2+ Ke2 c4 d5 g3 d6 g4 d7 g2 Qd2 c3 Rh2 g3 Rh5 Na6 Nf3 g1B Bg2 f1N Nh4 Bb6 Ke1 Ne7 Ng6 Bc7 e6+ Kg7 Qf4 Nd5 e7 Nb6 e8R Bfd6 Nd2 b1N Ba3 c1N Re6 Qf8 Ne4 Nbd2 d8B Kf7 Rf5 Qh6 Nf8 Be5 Bh3 g2 Bd6 g1B Ra4 Kg7 Rd4 Ng3 Rg5+ Kf7 Bf5 Nh5 Qh2 Rg8 h8Q Rg6 Rd3 Bgd4 Qf2 Rb8 a8B Bf4 Bd5 Na8 Qe2 Rb7 Qg2 Bb8 B8c7 Rb6 Bb7 Rc6 Qf2 Rc5 Bd5 Ndb3 Qb2 Nd2 Qh7+ Rg7 Qg6+ Kg8 Qe8 Bfe3 Qc6 Bd7 Bh2 Bf4 Bd6 Bc8 Ng3 Rg6 Bg2 Rg7 Ne4 Rg6 Be7 Bfc7 Bed6 Bd7 Qd5 Rg7 Qc4 Bc8 Bg6 Rh7 Rd5 Rg7 Re8 Bh3 Bf5 Rg3 Re6 Re3+ Kd1 Re1+ Kc2 Qg7 Bdf4 Bg1 Rde5 Ne2 Rd7 Rb1 Red5 Qh6 Bd6 Nc1 Kd1 Bd4 Ke1
2nrn3/2NRr2R/3pk3/2b2qrn/nN1QB3/nb4r1/pQ1p2N1/2N1BQ1K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 e4 f5 c4 a5 b4 h5 g4 h3 b5 h4 e5 d3 g5 a3 g6 d2 e6 f3 c5 a4 g7 h2 c6 a2 c7 h3 b6 a3 b7 f4 Bb5 Rh5 Qf1 Nf6 g8Q Na6 b8N Rg5 Qd1 Nc5 Ne2 Na4 Na6 Ne8 Rf1 h1R Ng1 h2 Nh3 Rhg1 Nb8 h1R Qh8 R1g3 Nc6+ Kd6 e7 Ke6 Ng1 Rh7 Nh3 Bb7 c8Q Qa5 Nb4 Bd5 Qd8 Bb3 Ba6 Qf5 Nc3 Rb8 Rb1 a1N Bd3 a2 Ne2 Nc2 Rh1 Na3 Be4 Rc8 Kf1 f2 Qd4 Ra8 Qb8 Rf7 Qb7 Rd8 Bb2 Rfg7 Nc1 Rh7 Bc3 Rhg7 Ke2 f1N Kf2 Ne3 Qf1 Nec4 Ra1 Ncb6 Rh2 Nf6 e8N Nc8 Qb8 Bc5 Qbb5 Re7 Nc7+ Kf7 Qbe2 R3g4 Kf3 Ne8 Qeg2 Rg3+ Kf2 Qg6 Kg1 Qh7 Kh1 Qf5 Ne2 Bd6 Rd1 Bc5 Ncd5 Ke6 Nc1 R5g4 Qgf2 Rg5 Nc7+ Kf7 Nca6 Ke6 Qb5 Bd5 Nbd3 Bc4 Qg7 Bb3 Bd4 Bd5 Qb2 Bb3 Ndb4 Ned6 Qg1 Ne8 Bf2 Rg2 Re1 R2g3 Re3 f3 Rd3 Bc4 Be1 f2 Qh8 Bb3 Nf4+ Kf7 Ng2 Ke6 Qhc3 f1N Rh5 Rf3 Rh7 Re3 Rd5 Rf3 Qcd4 Ng3+ Kh2 Nh5 Kh1 Rfg3 Qf1 Bb6 Rb5 Ba7 Rb7 d6 Rd7 Bc5 Nc7+
2nr3b/3N1n2/2qp1k1b/BRQ2r2/BrN2pR1/2b4p/2bQ4/Q1rR1KQr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 Ke7 b4 h5 e4 f5 g4 a5 b5 h3 b6 h4 e5 h2 b7 a3 g5 d6 c5 a4 c6 a2 g6 h3 c7 f3 g7 d3 e6 f2+ Kd2 a3 Ke3 d2 Ke2 Rh4 Bb2 Nd7 b8R Ne5 Rb5 Rb4 Nf3 Kf6 e7 Qe8 Rg1 h1R Rg4 Qc6 e8Q Ne7 g8Q Bh6 Bc3 f4 Qd5 Bf5 c8Q Bc2 Qeg8 Rb8 Qc1 d1R Qdd2 Ra8 Qa6 Nc8 Qc4 Rb8 Qc5 Ra8 Bg2 f1R Qg1 Rb8 Qab6 Ra8 Qbc5 Rb8 Qb2 Rfe1+ Kf2 Rc1 Bf1 Ra8 Bc4 Re3 Bb3 Rd3 Ba4 Rd5 Qd3 Rb8 Nbd2 Ra8 Rb1 a1B Nc4 a2 Be1 Rb8 Qd2 Ra8 Qa3 Nf7 Nfe5 Bc3 Kf1 a1B Qa2 Ke6 Nd7 Rf5 Rb3 Bh8 Rd3 Bac3 Qa1 Ke7 Qg2 Ke6 Rd1 Rb8 Bh4 Ra8 Bd8 Rb8 Ba5 Ke7 Nf8 Kf6 Qd2 Na7 Na3 Rd8 Nc4 Nc8 Nd7+
1Q1b2Q1/3rQ2R/3pp1pK/1Bb2BrN/b2Bn3/3RN1r1/r3Qkrq/2n1b3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 f4 Ke6 c4 Kf5 h4 b5 a4 g3 c5 Kg4 a5 g2 h5 Kg3 h6 g6 f5 b3 h7 b2 a6 b4 a7 e3 f6 b3 f7 e6 c6 d3+ Ke1 e2 Kd2 e1B+ Ke3 d2 c7 Na6 Qh5 d1R Bd3 Nb4 Qe2 Be7 f8Q Na2 Qg7 Nf6 Nc3 b1R Nd5 b2 Bb5 Ne4 Nh3 d6 Bd2 Bd7 c8Q Nc1 Bc3 Rd2 Ra3 Qf8 Nhf4 Bd8 Qg8 Qh6 Qb7 Qh2 Bd4 Ra1 Qb8 b1R Rd3 Ra5 Qc7 Rb3 Nh5+ Kh4 Kf3 g1B Ne3 Rda2 Qb7 Rb8 Qc7 Rb7 a8B Bc6 Qb8 Rd7 Qf7 Rf8 h8Q Bgf2 Qg8 Bg1 Bc4 Rg5 Bb5 Rbb2 Bb7 Rg3+ Kf4 Rd2 Bc4 Ba4 Bb5 Rdc2 Bd5 Rc5 Bb3 Rcg5 Bc2 Bgf2 Nf5+ Kh3 Qe7 Kg2 Ng7 Qg1 Rh7 Qh2 Nh5 Kg1 Bf6 Bc5 Ne3 Bda5 Bb1 Rc8 Bd4 Bd8 Qf3 Rag2 Qe2 Rc6 Rb3 Ra6 B1d3 Nf6 Bf5 Ne4 Rd3 Bb3 Bf6 Ra2 Bg4 Ba4 Bd4 Rd5 Nf5+ Nf2 Kg5 Re5 Kh6 Rd5 Bh8 Ne4 Ne3 Rf5 Bd4 Rg5 Qd1 Kf2 Bf5 Beb4 Qg4 Be1 Qe2+
Q2qN1B1/2n2Rp1/3Nb3/2nnp2N/2KB1NRp/2nR1Q2/1b2bb1b/1rr3k1 b - - 0 1 illegal: No proof kernel
nQB3K1/qn1b1p1n/1r6/R2N4/1b3RN1/R1rbB3/pp1n1Qb1/b1N1k2R b - - 0 1 illegal: No possible last move
2bNq1n1/1n3pp1/K2bNr2/b1R5/5QRk/BB1Q1pr1/1b2q1Q1/1BQ1b1b1 b - - 0 1 illegal: No possible last move
n2n1B1q/3npNp1/nr5R/nk4b1/4BpK1/QQq1RQ2/bN4R1/nRr5 b - - 0 1 illegal: Other
Q1q2n2/p5BN/1Rrq1qq1/RN1nk2B/1pQ5/bK1p1b2/2QR4/q1Rr3q b - - 0 1 illegal: No proof kernel
3R3K/pR5b/pbq1r1qk/QBqN1Qqp/1BN2Bn1/2r2q2/2n3N1/q2N4 b - - 0 1 legal: proof: f4 e5 d4 exf4 a4 g5 h4 gxh4 a5 c5 a6 cxd4 Be3 bxa6 Bd2 Bd6 Bc1 Bf8 Kd2 h5 Kd3 f5 c4 Kf7 g4 Kg6 b4 d5 e4 f3 g5 h3 b5 h2 b6 f2 b7 f4 e5 f3 c5 Bd7 e6 Qa5 e7 Nc6 e8N Nf6 b8B Rh6 Qe1 Ng4 Bd6 Rc8 Nh3 Be6 Qd2 Bg8 Nc3 Bh7 Rb1 Qb6 Be2 f1Q Nd1 f2 Qa5 Qg2 Bcf4 f1Q Rb4 Qd8 Rb7 Qfg1 Be7 Qb6 Nd6 Qb5+ Nc4 Nb4+ Kd2 d3 Kc3 d2 c6 Qe4 c7 Nc2 Bb4 Qgc5 Bd3 Kg7 g6 Qf3 Re1 h1Q Re8 Bd6 Rd8 d4+ Kb2 Be7 Be2 d3 Kc3 Qfc6 Bf1 Qhg2 Be2 Kf6 g7 Kg6 g8N Bh4 Nf6 Bf2 Nd5 Qg3 N1e3 d1Q Ng2 Qbb6 Bf1 Qdf3 Be2 Be3 Nf2 d2 Nd1 Qh4 Kd3 Qg5 Kc3 Kg7 Bd3 Re6 Bf1 Rb8 c8Q+ Kh6 Qd7 Rc8 Bd3 Qe4 Qf7 Qg6 Qf5 Qbc7 Be2 Qcg7+ Kd3 Rd6 Ke4 Qa1 Nc3 d1Q Bd3 Nf6+ Ke5 Qf3 Be2 Q5b5 Bd3 Bb6 Bf1 Qbc5 Be2 Qaa4 Nd1 Qa1+ Ncb2 Q5b5 Rg7 Qcc4 Rb7 Rc5 Bd3 Qc6 Bf1 Q4b5 Be2 Rc3 Bf1 Qbc5 Bb5 Rd7 Nc4 Rc7 Rd6 Rc8 Ke6 Rg8 Ke7 Rg7+ Kf8 Re7 Rd8 Ng4 Qe5 Qgd3 Qe4 Re6+ Kf7 Bg6+ Kg8 Bf5+ Kh8 Bh7 Qe5 Qg6 Qf5
1b1Q1nR1/1Q2R3/1K3kQn/5r1p/rB1p2Br/qnNQ1bb1/1BrN1p2/2b5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 d5 g4 h5 c4 f5 b4 a5 e4 f3 e5 f2 c5 a3 c6 h3 b5 h2 c7 a4 e6 f4 b6 f3 g5 a2 g6 a3 g7 Ra4 b7 Qd6 Qc2 Nd7 b8B Kf6 e7 Nh6 g8Q Bb7 Be2 f1N c8Q f2 e8Q Nd2 Q2c7 Nb3 Kc2 d3+ Kc3 d2 Qh7 d1R Qa5 Rd2 Bg4 Rc2+ Kd3 Qb4 Ke3 Bd6 Nf3 Bg3 Rg1 h1R Nc3 Rf8 Nd2 Rh4 Bd6 Bc6 Rb1 a1B Qb7 a2 Bb2 Qa3 Bb4 Rf7 Qd3 Nf8 Rbe1 Bb8 Bc1 Bb2 Rg3 a1B Rg2 Nc5 Kd4 Bg3 Re7 Nb3+ Ke3 Bb8 Qad8 Bg3 Na2 Bbe5 Nc3 Bb8 Bb2 d4+ Ke2 Bb5 Kf3 Bc4 Ke4 Bb5 Kd5 Bc6+ Kc4 Bd5+ Kb5 Bf3 Bc1 Bb2 Kb6 Qa1 Rg1 Ba3 Bb2 Qa2 Ba1 Bc1 Bb2 Qa3 Bh3 Bge5 Rg8 Bg3 Bc8 Rg7 Bh3 Rg5 Bg4 Rf5 Qg6+
1BNRQRb1/K5nr/BNp5/rpNn1p2/6r1/2r2b2/k1nq1n1R/b2R1Q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 g4 h5 e5 f5 d3 b5 e6 f3 Ke3 b3 a5 Kb4 e7 c3 e8Q f2 d4 c6 a6 h3 a7 c2 d5 h2 Kd4 h4 g5 h3 g6 b2 d6 Kb3 Kc5 Be6 Nf3 Ne7 d7 Rh7 Na3 b1N Ng5 Bg7 Ra2 Ba1 Nc4 Na3 Nd6 Bd5 Rg1 h1N g7 h2 g8R Bf7 Rf8 Bg8 Bg2 f1R Nge4 Rf4 Rf1 Rfh4 Bf4 Rg4 Re1 Qa5 d8R Qc3+ Kb6 Nd7+ Kb7 Nf6 Rf1 Nh5 Nc5+ Kb4 Qf3 c1R Rd1 Ng7 Qf1 Qe1 Ka6 Rc3 Bd5 Qe3 Rad2 Nc2 Be6 Ka3 Bc8 Ka2 Rg2 Nf2 Bg3 h1B Rh2 Rb8 a8N Bf3 Nb6 Ra8+ Kb7 Ra6 Kb8 Ra5 Ba6 Qd4 Ndc8 Qd2 Ka7 Nd5 Bb8
RnN2q1n/5r1R/rp1B4/1KR1pnn1/1QRN2Q1/3b1p2/QrBk1b2/2r2b2 b - - 0 1 illegal: No proof kernel
n2br3/QrnbNpn1/1Q1KpR1R/p4b1B/R3b2R/1n6/qr3BB1/3N1k2 b - - 0 1 illegal: No proof kernel
1N1q1R2/n2BQ3/R1QbrBr1/n1bp1R2/Nbb3nq/2nR2B1/pp4K1/1k6 b - - 0 1 illegal: No proof kernel
1B1b1N1n/3Q1q1b/BbQ1nkrN/Bnp1q3/KR1n3r/1pR5/bNB1p3/8 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 f4 b5 d4 e5 Kd2 c5 Kc2 h5 a4 b3+ Kc3 h3 a5 h2 f5 b4+ Kb2 h4 a6 e3 f6 e4 d5 e2 g5 e1B a7 e3 d6 e2 d7 h3 Nd2 c3+ Kb1 b2 Ka2 b1N Kb3 c2 Ka4 Rh4 Nb3 Na3 Be3 c1N Na5 Be7 Qd2 Nh6 Nf3 Qc7 d8B Be6 Qd7 Na6 Nd4 Nb3 Rc1 Nb5 Rc3 Qe5 Bf4 Nac7 Nf5 N3d4 Bg2 Ba2 Bb7 b3 Nc4 Nce6 Ba5 Rg8 a8Q Rg6 Ba6 Bg3 Rg1 h1B Nb2 h2 Qac6 Be4 Rg2 Be1 Rg4 h1Q Bh2 Qf1 Rf4 Kg8 f7+ Kh7 Rg4 Bd8 f8N+ Kh8 Bg3 Nf7 Nh6 Kg7 Bh2 Qff6 Rf4 Qe7 Rg4 Nh8 Bg3 Qd5 Bb8 Qf7 Rf4 Bg3 Rg4 Bgc7 Rf4 Rf6 g6 Qe5 Rg4 Bb6 Rf4 Rf5 Rg4 Kf6 g7 Rfh5 g8B Rg5 Bh7 Beb1 Bc2 Rg8 Bd1 Bh7 Bc2 Rg6 Re4 Nf3 Rec4 Nfd4 Rb4
b1b1Bn1N/1Q3KB1/3bp3/p5Qr/nq2r3/1QRr2bQ/1q1pR3/k1Nr3B b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Kf6 f4 h5 c4 d5 b4 a5 c5 h3 c6 e6 b5 a3 c7 d3+ Ke3 a2 Kd4 h4 f5 d2 b6 h2 b7 e3 Nc3 e2 Qb3 e1B Nb5 h3 Ne2 Bg3 Bb2 Bfd6 Rc1 a1Q Rc3 Qf8 Nc1 Na6 b8Q Rh5 Bg2 Ne7 Qb7 Nc5 Re1 h1B Re2 h2 Bf3 Ng6 g5+ Kg7 Be4 Na4 f6+ Kf7 Bf3 Qa3 Ba1 Qb2 Bg2 Qe7 Be4 Nf8 g6+ Kg8 g7 Kf7 Bf3 Bg2 Be4 h1R Bf3 Kg6 g8Q+ Kf5 f7 Re1 Qg4+ Kf6 Qh3 d1R+ Rd2 Bf1 Bh1 Bd3 Re2 Bg6+ Ke3 Ke5 Kf3+ Be4+ Kg4 Bb4 Nd6 Kd4 Nc4 Ba3 Ne5 Bd6 Ng6 Rd3 Nh8 Red1 Qa6 Rb8 Qc6 Rb4 Qb7 Nd7 f8Q Bg2 Qg8 Nf8 Rc6 Rc4 Qg5 Be4 Qa2 Kc3 Rc5 d4 Rc6 R3d2 Qa3+ Kc2 Qab3+ Kb1 Rc5 Rb4 Rc4 Rd3 Rc3 Bd7 c8B Rc4 Qc7 Ba8 Ba6 Rb4 Bb5 Bc8 Be8 Rc4 Qcb6 Qb7 Qc6 Qb4 Qf3 Rc5 Qf7 Re5 Qb7 Re4+ Qf4 Rh6 Kg5 Rh5+ Kf6 Rde3 Qg7 d3 Qb7 d2 Kf7 Rd3 Qg5 Be7 Rc4 Bed6 Qa3 Q2b3 Bg7 Qb2 Qb3 Ka1 Rc3
4k1B1/b1q5/p2p3R/1R2rp1b/1rnQq3/1b1N1B1R/3Bbnn1/KnB1NQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 c4 f5 Kc2 a3 e4 h3 g4 h4 b4 d3+ Kb3 d2 Ka2 h2 g5 a6 c5 h3 c6 f3 g6 f2 e5 Nh6 g7 Ng4 g8B Ne3 b5 Rh4 c7 Rb4 b6 Nc6 e6 Ng2 e7 Ne5 b7 Nc4 Qa4 d1B b8B Bh5 Be2 f1B Bf3 Be2 Nc3 Bg7 Nd1 Bd4 Qb5 Ba7 Nf2 Bb7 c8R Bd5 Rc5 Qc7 Qb6 d6 Nd3 Bdf7 Rb5 Bd5 Rb1 Be6 Ka1 a2 Qd4 Bd5 Bg4 Be6 Nf3 Bd5 Rd1 h1N Rb3 h2 Nfe1 Nf2 Bf3 h1Q Rd2 Qh4 Rc3 Qe4 Ra3 Qc8 Bc7 Bdf7 Ba5 Qc7 Rd1 Rb8 Rb6 Rb5 Bad2 Re5 Rb5 Be6 Nc2 Bef7 Rh1 Bd5 Nce1 Bdf7 Rd5 Rb4 Rh2 Nce3 Rb5 Bb3 Kb2 a1N Rh4 Bhf7 Rh6 Bh5 Kb1 Nac2 Kb2 Bbf7+ Rb3 Na3 Ka1 Nb1 Rc3 Nc4 Rb3 Kd7 Rc3 Qd8 e8Q+ Kc8 Nc5 Nb6 Bg4 Bb3 Qg6 Nc4 Qg7 Nh4 Rh3 Qc7 Bf3 Kd8 Qg1 Ng2 Qf1 Ke8 Ncd3
2Nnkb1Q/3R1pq1/Q2r2Nn/1R1q3n/p1p1B2n/1B4B1/b3R2r/rr2RK2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 b4 a5 d4 c5 e4 h5 g4 c3 e5 h3 e6 a3 b5 a4 e7 h2 g5 f3 b6 c2 g6 a2 g7 h4 d5 h3 b7 Rh6 d6 Ra5 Qe2 Rf6 Na3 Nc6 b8R Be6 Qa6 Nh6 g8Q Rb5 Bc4 f2+ Kf1 Rb1 Rb5 Qa5 Qh7 Nd8 Bb3 Qd2 Nc4 Qd5 Nb6 Rg6 Ke2 f1N Qh8 Nd2 Nc8 Nf3 Kf1 Nh4 Nf3 Rf6 Rg1 h1N Rg2 h2 Re2 Rg6 Ne5 Ng3+ Kf2 h1R Bf4 Nh5 Bg3 Rbg1 Rae1 c1Q Nb6 a1R Nc8 Rg4 Ng6 Qc3 Bc4 Rd4 Ba2 Rh3 Bb3 Rg2+ Kf1 Rgh2 Rb8 Rd2 Rb5 Qg7 Rb4 Rb2 Bf2 Qe4 Ba2 Bb3 Rb5 Rd3 Bg3 Be6 Bd5 Nb7 Bc4 Rbb1 Bd5 Kd7 e8B+ Kd8 d7 Rdd1 Bc4 Rd6 Bd5 Qee5 Be4 Ba2 Bc2 c4 Bb3 Kc7 d8R Qd4 Bd7 Qd5 Rde8 Nd8 Bf5 Ne6 Bfc2 Kd7 Re7+ Kd8 Ra7 Ke8 Be4 Nd8 Rd7
K2b1r2/1ppbb3/1B6/1R2rbrB/2N1krQ1/1n3BQ1/BqRQ1npq/1N6 b - - 0 1 illegal: No proof kernel
2Rnk2q/K5N1/B1q2Bbp/1RQ3n1/2r5/3br1Qp/Nprq3p/1R1Qb1R1 b - - 0 1 illegal: No proof kernel
n2QRNr1/B5nK/1p2p1N1/3Rqr2/Rq1Qrp1b/bb6/1p3n2/N1R2k1B b - - 0 1 illegal: No proof kernel
4bR1n/1rnr1N1k/pBK1p2R/Qn1Q2b1/2Qpq2N/q4Q2/3p4/1rBB1q2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 f4 Kg6 g4 d5 b4 h5 c4 h3 c5 h4 g5 e6 c6 h2 c7 d3+ Ke3 h3 Kd4 e3 b5 d2 f5+ Kh7 b6 e2 f6 e1Q f7 a3 b7 a2 Qe2 Be7 f8Q Nh6 Qh5 Bd7 c8Q Qa5 Qc4 Na6 b8B Nc7 Nf3 a6 Be2 Ra7 Na3 Be8 Nh4 Rb7 Bd1 Qf1 Nb5 Qa3 Qff3 Rg8 Ke5 d4 Nd6 Rg7 Ba7 Rf7 Rb1 a1N Bb6 Nc2 Rb4 Rg7 Nf7 Bd8 Kd6 Bf6 Ne5 Rd7+ Kc6 Bd8 Qfd5 Bf6 Qhe2 Nf7 Qef3 Nh8 Nf7 Bd8 Qa5 Bf6 Rb5 Bd8 Rf5 Be7 Rg1 h1Q Qcd5 Qhg2 Rh1 h2 Qc4 Qg4 Qfd5 Qe4 g6+ Kg8 g7 Bg5 Nd6 Kh7 g8Q+ Kh6 Qf8+ Kh7 Rg1 h1R Nf7 Qaf3 Rg2 Na3 Rh2 Nab5 Rh3 Qc3 Qfa3 Qb4 Qf3 Qa3 Rh2 Rg1 Rf6 Rh1 Rf2 Rg1 Rh6+ Kg7 Qh5 Rg3 Bc2 Rf3 Nd8 Rc3 Rf8 Rb3 Nf7 Rb2 Qf3 Rb1 Rf6 Kh7 Bd1 Qad3 Rg6 Qa3 Rh6+
1KN3n1/1Q3k1p/1B2qrN1/Qn1RBB1q/7p/pp2b1Bb/3n4/q1RrrQ2 b - - 0 1 illegal: No proof kernel
K1Q1Rq2/Rn1r3p/2b1Q2q/p3Rp2/3BrNR1/n2r1kBn/b2pB3/b4N2 b - - 0 1 illegal: No possible last move
K4N2/2RqNp1N/3rq2k/1n2pb2/1pBRn2Q/2b2b1p/BN3Br1/rQ4q1 b - - 0 1 illegal: No proof kernel
kb2rNq1/2BR1p2/ppR2n1Q/R1Q2r1N/3N1p2/4b3/K1n5/Nrq1qb1B b - - 0 1 illegal: No proof kernel
q3n1k1/1NnQp2r/3rb1qR/2Q2B2/3p2NN/7Q/rqnKQBpp/5Rb1 b - - 0 1 illegal: No proof kernel
R1b2Qr1/1R1p1qp1/1n4QN/Qrn4p/b2nQp1b/BBR4K/N3k3/4qr2 b - - 0 1 illegal: No proof kernel
1B1Q4/3p1pK1/1kp2p2/nqRB3b/2Qb2N1/1q1r1rrn/6QN/1Bq1BnR1 b - - 0 1 illegal: No proof kernel
Nk2R1q1/2p1NqqN/Rb1NrB2/Rr6/K3p1n1/3Bp1Q1/2r1Q1bp/4nn2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 d4 b5 Kd2 e5 Kc2 h5 a4 c3 Kb3 c2 f4 e3 a5 h3 d5 h4 a6 e4 d6 h2 a7 h3 f5 Nf6 g5 Ng4 g6 Nc6 g7 Nd4+ Ka2 b3+ Ka3 b2 g8Q b4+ Ka4 b3 f6 Nf3 f7 Rb8 a8R Rh6 Ra2 Rb5 Ne2 Ne1 Ra5 Re6 Na3 b1N Bb2 c1R Nd4 Nd2 Qe2 Rc2 Nf5 Ba6 Bg7 Kc8 d7+ Kb8 Ne7 b2 Nc4 b1Q Bf6 Qa1 Nb6 Qc3 Rg1 h1Q Na8 h2 Rg3 Bg7 f8N Qf3 Nh7 Bh8 Qg6 Qg8 d8N Qa1 Nf7 Qe5 Bg5 Qeg7 Nd6 Qff7 Bf6 Bc8 Rf3 Bd7 Rf5 Bc8 Re5 Bd7 Bh3 Nf1 Qg5 Bc8 Qf4 Bd7 Qg3 Nh6 Qd3 Nd2 Bg5 Qg7f8 Nd5 Rg6 Ra6 Bf5 Bf1 Bh3 Ka3 Ng4 Bd8 Rf6 Re8 Bg2 Be2 Nf1 Qd1 Rd2 Bd3 Re6 Qe2 Rc2 Ra1 Bc3 Ra2 Bb4+ Kb3 Q7g7 R2a5 Bc5+ Ka4 Qff7 Nc8 Rb7 Bf6 Rb5 Nde7 Bb6 Nd6+
Q3R2B/p1N1b3/1qRn3k/QQr1pb2/1K1R4/1nnqpb2/r1p3N1/1Q1B2r1 b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 b4 Kf7 f4 Kg7 g4 c5 d4 e5 Kd2 h5 Kc3 a3 g5 a2 d5 h3 d6 h2 d7 h4 b5 h3 f5 Nf6 g6 Nc6 b6 Ne7 b7 Ne8 b8Q Qb6 d8Q Nd6 Bg5 e3 Be2 Rg8 Bf6+ Kh6 g7 Bd7 Qb7 Rc8 Nf3 Rc6 Re1 h1B Nh4 h2 Na3 Bf3 Rc1 h1Q Nb5 a1R Nc7 Qf1 Ng2 Ra2 Qb3 Bc8 Red1 Be6 Rd4 Bc8 Qb2 Nd5+ Kc2 c3 Bd1 c4 Qb8 Ra1 Qb1 Rc5 Qb7 Be7 Qb5 Rf8 g8Q Ra4 Bh8 Ra2+ Qb2 Rf7 f6 Rg7 f7 Bd7 f8R Bf5+ Re4 Rg4 Re8 Rg5 Qc6 Rg6 Qb5 Qe2+ Kb1 Qd3+ Rc2 Rg7 Rd4 Rg4 Kc1 Rg3 Qb1 Rg6 Rf2 c2 Qa8 Nc3 Qgd5 Ra3 Kb2 c1N Rc2 Nb3 Nf4 Rg1 Ng2 Ra1 Rc1 Na2 Ka3 Nc3+ Kb4 Ra2 Rc2 Nce4 Rd2 c3 Rc4 c2 Rc3 Qf1 Rd4 Qd3 Rcc4 Qa6 Qa5 Nc3 Qdc6 Qb6+ Qcb5 Rd5 Rc6 Rc5 Qb8 Kh5 Qc8 Kh6 Qa8
1QNBB3/1r1rR3/1r2p1R1/3bk1B1/n3r3/3nB1pK/q3Npp1/r2nN1bQ b - - 0 1 illegal: No proof kernel
nbQ1q3/4BRp1/1nBb4/6pk/Q1b2B1n/3R2pb/1K1bprB1/R1rN2N1 b - - 0 1 illegal: No proof kernel
K1Rn1BNB/p2n3b/k2qp3/r1Q3b1/4B1np/B1n1r1p1/1N6/N1Qbn1R1 b - - 0 1 illegal: No proof kernel
1KB3Qn/1Q6/2Nkn3/R2r1Rpp/1QQ2pbr/N1q3n1/pB2r2b/1nN3b1 b - - 0 1 illegal: No proof kernel
3q3R/r2nk1K1/BQQ2pp1/N2nN1br/Qppb1r2/1n2R3/B4Q2/2Bb2n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 e4 b5 a4 g3+ Kf3 g2 d4 f6 h4 b3 e5 b4 Ke4 b2 h5 f3 d5 f2 d6 c3 a5 c2 a6 Qd7 a7 Nh6 e6 Qc7 d7+ Ke7 Nd2 b1R Ra3 Rb3 Ba6 f1N Ngf3 g1B Nc4 Nf5 h6 Nh4 h7 Bd4 Na5 Qd8 Ne5 Nf3 Kf5 Ne3+ Kg6 Nd5 Qg1 Re3 Qf2 Re4 Re3 Ng1 Rh6 Rf4 Rh1 Rg8 h8Q Bb7 Qh5 Rh8 Qhf3 Rh5 Q3g2 Bc6 Qe4 Ba4 Rh4 Kd6 e7 c4 e8B Ke7 Bf7 Nc3 Qc6 Nd5 Be6 Bb3 Bf5 Ba4 Bb2 c1N Bb1 Bd1 Ba2 Nb3 Bc1 Rhf5 Kh7 g6 Kg8 Rg5 Rh8 Rh5 Qa4 Bh6+ Kh7 Bg5+ Kg7 Qc8 d8Q+ Ke6 Rf3 Nd7 Qb6+ Ke7 Re3 Qd8 Qac6 Rb8 a8Q Rb7 Qa4 Ra7 Q8c6
2N1BR1n/p4N1q/1Q1pQ2r/RR6/1p1Q3r/2b1K1k1/r2nRBbp/r1n4b b - - 0 1 illegal: No proof kernel
NQ4r1/N2n3n/1Q2q2n/K2Q2p1/2pp1pQ1/k2Rq3/Br1n1Bnb/5NRb b - - 0 1 illegal: No proof kernel
1K1N2R1/Bn5N/R2B1qBr/p1Q1N3/kn2q1p1/bp1n4/pnb5/1Q2Bn1r b - - 0 1 illegal: No proof kernel
QNnK1B2/8/2bBb2p/Qrb2Np1/1q1pN3/p1R2n1B/RN3bqb/2kr4 b - - 0 1 illegal: No proof kernel
r4N2/2p1r1k1/3Rq3/R1r3Br/np1B4/prqQ1nbb/B1Q2p2/BNK4N b - - 0 1 illegal: No proof kernel
3R3r/2QRn2q/rBQ1b2n/n3k2p/n1RpNb2/4p2Q/2KNq1pb/3R1B2 b - - 0 1 illegal: No proof kernel
R5BQ/r5Bn/bRq1nnnN/3k1Np1/1R1pR3/1NQq1p2/1r3p1K/1b2b3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 a4 g5 h4 b5 c4 f5 e4 b3 h5 g3 a5 b2 h6 f3+ Kh3 g2 h7 f4 a6 f2 a7 f3 Be3 b4 Rh2 b3 Qd2 d3 Ra3 Qf6 Ra6+ Nc6 Rb6 Ba6 Qc3 d2 Bd4 d1Q Nd2 b1B Ne2 b2 Nb3 Qd3 e5+ Ke6 c5 g1N+ Kg3 d5 Rh4 Nh3 Kh2 Nf4 Ng3 Ng6 Nf5 Bd6 Rg4 Nd8 c6 Bb4 Nh6 Rb8 a8R Rb7 Qc2 Be1 Qc3 Ra7 Be2 Qf7 Rf4 Qd7 c7+ Qc6 c8N Nf6 Nd6 Rg8 h8Q Nh7 Rh4 Rgg7 Ndf5 Rgb7 Be3 Rb8 Rhb4 d4 Bf4 Kd5 e6 Rbb7 e7 Ne6 e8R Ng7 Bd6 Qd1 Na1 Bbd3 Bf8 b1N Re3 Nd2 Rb1 Ne4 R6b3 Nef6 Re4 Rb6 R1b2 Bb1 Bb5 Qd3 Ba4 Ngh5 Bg7 Nhf4 Bb5 Rb8 Bc4+ Kc5 Bg8+ Bc4 Ra3 Ne6 Ra4 Kd5 Ra6 Rb4 Rb6 Ba6 Rb3 Ra4 R3b4 Ra2 Nb3 Re2 Rf8 Rb2 Ra8
3r1QRQ/1Bk1K2Q/b3N1p1/b2pnN2/p1Qq4/pbr3q1/1N2rB2/1Rn3b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 Kd3 a5 Kc4 g3 Kd5 d3 e4 d6 c4 Kd7 h4 d2 b4 a3 b5 g2 c5 a4 c6+ Kc7 e5 g6 h5 f3 e6 f2 h6 f4 h7 f3 e7 Kb6 e8Q Qc7 Ne2 g1B Ng3 Qa7 c7 Nc6 Nf5 Ba6 Ke6 d5 c8Q Nge7 Nc3 Na5 Rb1 Nb3 Qc4 Rc8 Rh3 Rg8 h8Q Nc6 Qd7 Bd6 Qdh7 Ne5 Rh6 Bc7 Ke7 Kb7 b6 Rgd8 Bb2 Kb8 b7 Nc1 Bd3 Qd4 Qf1 Ba5 Nd1 Rc5 Bc3 Kc7 b8N Rc6 Nb2 d1B Nd7 Bb3 Be1 Rc5 Qb5 Rc3 Nc5 Bb4 Qbe8 Ba5 Qe2 f1Q Qef8 Qh3 Bf2 Qg2 Bb5 Qg3 Bc6 Kb8 Bb7 Kc7 Be3 f2 Qc4 f1R Bf2 Re1 Rh4 Nf3+ Re4 Re2 Re6 Ne5 Rf6 Na2 Rf7 Qe4 Rg7 Nc1 Rg8 Qd4 Ne6+
1Br4q/2rN2Q1/b1p5/nQ5n/pb1NQ1p1/1B2bRqn/1R1k1Np1/1K2Nb2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 Kd7 Kd2 Kd6 Kc2 Kd5 b4 Ke4 h4 f5 e3 g5 d5 a5 h5 g3 b5 c3 b6 a3 d6 a2 h6 f3 h7 g4 b7 f2 d7 a4 Qe2 f4 Na3 g2 Qe1 f3 Rh3 Ra7 Rb1 a1B Rb2 Nc6 b8N Ba6 Kb1 Na5 Bc4 f1B Nc2 f2 Bb3 Kd3 Rf3 Bb4 Nh3 Nf6 Bd2 Re8 h8Q Nh5 Qg7 Qh4 d8N c6 Ne6 Rc8 Nd7 Qg3 Ned4 Rac7 Bc1 Be2 Bd2 f1Q Qd1 Qg1 Qf1 Q1h2 Be1 Qh1 Bf2 Qhh2 e4+ Kd2 e5 Bec4 Ne1+ c2+ Ka2 Bd3 e6 Be2 e7 Beb5 Qg1 Bf1 e8Q Qh1 Qe4 Qhh2 Rb1 Bac3 Qh1 Bc5 Rb2 B3b4 Bg1 Ba7 Nf2 Qhh4 Nb5 Be3 Bh2 Qd8 Nd4 Qh8 Rb1 c1N+ Ka1 Bfd3 Qf1 Ne2 Ka2 Ng1 Rb2+ Bc2 Qb5 Nh3 Rb1 Bd3 Rb2+ Kc3 Ka1 Bf1 Kb1 Qh4 Bd6 Qg3 Ndc2+ Kd2 Bf4 Rb7 Bb8 Rbc7 Nd4+
1qqNQR2/5Nkq/pr6/4p1n1/B4rrB/3pR2N/2p2rn1/NQKb1Rb1 b - - 0 1 illegal: No proof kernel
5nRQ/k1b3Kp/BB3rN1/Q1RB2pr/6N1/2q1ppn1/1q2R1b1/1r2Rr1b b - - 0 1 illegal: No possible last move
3rBK2/Q6p/p1R1N1b1/3q1b2/kQ1pR1rR/1n1n4/1B1p4/b1NqqBBq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 d5 Kf3 Kd7 Kg4 Kc6+ Kh5 Kb5 e4+ d3 b4 f5 g4 d4 e5 a6 e6 f3 g5 f4 e7 a3 e8B+ Nd7 g6 h3 g7 h2 Ne2 a2 Nd2 f2 Ne4 d2 Ng5 f3 Ne6 Ne7 Kh6 Rb8 Bb2 Nd5 Qb1 Rg8 c4+ Ka4 c5 Nf4 b5 Nd3 c6 Ba3 c7 N7c5 Nc1 Qd5 b6+ Bd7 c8R Nb3 Rc3 Rd8 b7 Bb4 Rc5 Bc3 Rc6 Bc8 b8B Bd7 Rg1 h1Q+ Bh2 Bc8 Rg4 Bd7 Nf4 Bf5 Rh4 Bg6 Ne6 Bf5 Bg2 f1B Bg1 f2 Bh3 Be2 Bf1 Bh5 Re4 Bhg6+ Rh4 Rf8 g8Q Rf7 Qf8 Rg7 Qf7 Rg8 Qa7 Rg7 Bh3 f1Q Bg2 Qe1 Bf1 Bh5 Re4 Rg3 Rh4 Bhg6 Kg7 Rg2 Kf8 Rg4 Qc2 Ba5 Rb1 a1Q Qcc5 Bc3 Ne2 Qg3 Re1 Qd1 Nc1 Qf2 Re4 Qfe1 Ba3 Ba1 Bb2 Rc8 Qc3 Rd8 Qb4+
KB1bn2R/2qB1p1R/2N3pN/n2b1r2/rQ2rqk1/2p4N/p2B1nr1/4Q1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 d4 Ke6 b4 Kf5 e4+ Kg5 h4+ Kh5 e5 c5 e6 a5 d5 a3 d6 g6 e7 c3 e8Q f3 Ke3 g3 Ke4 c2 Kd5 a4 b5 g2 d7 a2 b6 c4 b7 c3 Nh3 g1N Qde1 a3 Bd2 c1Q Q8e4 f2 Qb4 Ra4 Bb5 Qc7 d8N f1R Bd7 Nc6 b8B Na5 Nc6 Bb7 Rh2 Bg7 Kc5 Bd4+ Kb5 Ba8 Ka6 Bf6 Rh1 Bb7+ Ka7 Bd8 Rh2 Nf6 Rh1 Ba6+ Ka8 Rf5 Rh2 Bc4 Rh1 Kg4 h5 Nh7 h6 Nf6 h7 Re8 h8B Re4 Bg7 Ne8 Bd4 Bd5 Bf2 Nf3 Bg1 Nh2 Bde3 Be6 Nd2 Bd5 Rb1 a1R Rb3 Rc4 Ne4 Ra2 Bd2 Rc2 Rb2 a2 Rb3 Nf3 Ra3 Ne5 Rb3 Nd3 Nf6+ Kf3 Rb1 Re4 Ng8 Kg4 Bg5 Nf6 Rb2 Rf2 Nf4 Ne5 Rh8 Ne8 Bh6 Nd3 Rd2 Rf3 Rh2 Rg3 Rh5 Rg2 Nh3 Nf2 Bf4 Nd3 R5h7 Nf2 Bg5 Qe3 Bh6 Qeg3 Bd2 Qgf4 Nh6+
B7/3r1pr1/Rp6/n1p4b/1b1B4/q2kN1RB/rQN1BpRK/Q1qb2rn b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 a4 Kd6 d4 Kd5 g4 Ke4 Kg2 h5 d5 f3+ Kh3 c3 e3 f2 d6 b6 a5 c2 d7 b3 a6 b2 g5 Rh7 g6 Nf6 a7 Qe7 g7 Nc6 g8R Na5 Nf3 Rg7 Nd4 Qa3 Be2 Bb4 Kh2 c5 d8Q h3 Rg1 h4 Rg3 Bg4 Nf5 Nh5 Qf6 Bf3 Bd2 c1Q Bc3 Bg4 Rg2 Ng3 Bd4 Bh5 Qd2 Rd8 a8B+ Rd5 Qd1 Nh1 Qd2 Qac3 Na3 b1R Ra2 Rb2 Nc2 Qa3 Ra1 Ra2 Qe1 Rh7 R8g3 Rg7 Qc3 Qb3 Qb2 Qa3 Bg4 Kd3 e4+ Qe3 e5 Rd7 Bgf3 Qc1 e6 Qe3 e7 Qc1 Rg4 Nb3 Be3 Qa7 Qb1 Ng3 Bfd5 Rb2 Be6 Qa6 Ra5 Ra2 Rg5 Bd1 Qfb2 Bh5 Q1a1 Bd1 Rb5 Qa3 Bd4 Bh5 Ra5 Bd1 Ra6 Na5 Rg4 Nf1+ Kh1 h2 Rg1 Ng3+ Kg2 h1B+ Kh3 Be4 Nfe3 Bg6 Rg2 Bh5 Bed5 Ra7 e8B Rb7 Bec6 Rc7 Be6 Rd7 Kh2 h3 Bf3 Ne2 Kh1 h2 Rg1 Ng3+ Kg2 h1R Be2+ Kd2 Rg5 Qb1 Bh3 Qc1 Re1 Rf1 Kh2 Nh1 Rg3 Rg1 Rf3 R1g6 Rg1 Rg5 Rg4 R5g6 Re4 Rg3 Rg4 Rg1 Rg2 Nc6 Rfg3 Na5 Bef3 Kd3 Be2+
nn1RR2N/1rb1pB1r/3pn2R/Q3Qk2/1B3pr1/1rB2qqp/8/K1N1Bb2 b - - 0 1 illegal: No possible last move
B1r3nB/3p2bR/K2N4/1RppnN1n/RB3r2/qQqq2Q1/1pb2B2/q4k2 b - - 0 1 illegal: No proof kernel
5nQr/1p1NK3/R1b4B/1pR2rNq/1BBpQq2/b1b1p3/1kr3b1/2N3nN b - - 0 1 legal: proof: e4 c5 b4 f5 h4 fxe4 d4 cxd4 b5 g5 b6 gxh4 Qd2 axb6 Qd1 b5 Kd2 Kf7 c4 Ke6 f4 d5 g4 h5 a4 h3 f5+ Ke5 a5 h2 a6 d3 Ke3 h4 g5 h3 c5 d2 c6 Nh6 a7 Qd6 f6 Bd7 g6 Nf7 g7 Ng5 g8Q Nf3 c7 Bc6 c8N Nd7 Qe2 d1Q Nb6 Rc8 a8N Rh5 f7 Rf5 Nc7 d4+ Kf2 e3+ Kg3 Ke4+ Kg4 e5 Ra6 Qh6 Ne6 Ba3 Qe1 e2 f8B Kd3 Bb4 Kc2 Nc3 e4 Na2 Nf8 Nd7 Rc7 Bg5 Kb2 Nc1 e3 Qh4 e1B Nge2 Qf6 Bh6 Bc3 Ng3 Ng1+ Be2 Qe5 Ng5 Qf4+ Kh5 Nh7 Kg6 Nf8+ Kg7 Bg2 Bc4 Qh5 Nb3 Ne2 Rd1 h1B Nc1 h2 Rg1 Bc6 Qg4 Bhd5 Nh1 Bg2 Re1 Ng1 Rf1 Rd5 Qf5 Re5 Kf6 Rc5 Ke7 Rd5 Nf2 h1R Qe4 Rh4 Nh1 Rf5 Bg7 Qhf3 Rd1 Rh8 Bh6 Qh5 Rd3 Be1 Rc3 Bd2 Bf7 Rc8 Rc4 Bc3 Rc5 Bd2 Qf3 Be4 Rd5 Rc2 Rc5 Bc3 Bc4 Bc6 Qe4
B2kN2N/qp5K/1b1r1pp1/3R1r2/b1R2B2/r1B1pQQN/2q2rn1/N4n1q b - - 0 1 illegal: No proof kernel
k2b4/qp4Q1/prbn4/1n2n1Bn/pN1Q4/pR1B3q/1N1rNRN1/1B2K2b b - - 0 1 illegal: Other
Nr1qQ3/p2Qb2N/1r3q1B/3q2p1/KnBp2r1/1BR2N1k/B5bp/1R3n1q b - - 0 1 illegal: No proof kernel
n5Bn/pp1bn1B1/1r1q3k/1pq2R2/B1Bp1rRN/b1RNq3/Q2n2Q1/3K4 b - - 0 1 illegal: No proof kernel
B6b/2p3Bn/1Nr1B3/R1bb1Q1N/2Bp1b1p/2pq1kbK/n3Qr2/1bR4N b - - 0 1 illegal: No proof kernel
N1Bn1r1R/2r2ppb/5p1b/nQ4Bp/QKb2q2/4BN2/2R2r1R/bB1k1r2 b - - 0 1 illegal: No proof kernel
1Rq5/pn2p2k/3p3Q/1KbnN1bp/3NBBb1/5p2/1Qrn2rN/RNr3Q1 b - - 0 1 illegal: No possible last move
3QRkB1/K2RRb2/3Np1r1/3n2p1/R1n1N1q1/2p2qp1/2pbQBrr/b4B2 b - - 0 1 illegal: No possible last move
2R1q3/Bn3prp/Rb2rNp1/n3N2q/1R2Q1Q1/K2b4/2Qppn2/2Q1bB1k b - - 0 1 illegal: No proof kernel
b1B5/1p5p/N2rnq1q/5n2/N1pnkpr1/B1QR3R/1K1bp1Q1/1R1Br2R b - - 0 1 illegal: Other
br6/pn1p2Qr/k1B2p2/N6b/NBBR3n/Bp1K2bp/N1R4b/3n1Qq1 b - - 0 1 illegal: No proof kernel
4q3/1pRNbk2/1nb3qN/p2pBp1N/2Br1pr1/1KR2Q1b/3bQ3/2RnN3 b - - 0 1 illegal: No proof kernel
Q1B1Bk1n/2B1b3/5pNp/Kp1Q1QQp/2bpR3/2pR1qr1/2p4n/4bN1r b - - 0 1 illegal: No proof kernel
1BRrk1QN/1B4pQ/r1p2R1p/b1qrnn1N/p2pR1b1/p5Np/2N5/K7 b - - 0 1 illegal: No possible last move
B3Q3/1k2b1Kb/1Nrr3r/2BB1RBb/b2nBB2/2R1r3/1r2q2N/2bq1r2 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 h5 Bb2 exf6 Ba3 f5 Bc1 f4 g4 hxg4 c3 b5 Qb3 Nc6 Qd1 b3 c4 b4 Na3 Na7 Nb1 Nb5 cxb5 Qc7 Nc3 Qa5 Nb1 Qd8 Kf2 g5 a4 f5 e4 d5 h4 Kd7 h5 Kc7 b6+ Kb7 a5 b2 h6 b3 h7 d3 e5 d2 e6 d4 e7 d3 e8B g3+ Kf3 g2 Rh4 g4+ Kf2 g3+ Kf3 Nh6 Ra2 Be7 Qe1 d1B+ Ne2 g1B Rh1 d2 Bg2 Be3 Bg6 Bd7 Bh5 Rc8 Rh3 Ba4 Bf7 Rc6 Na3 b1R Nc4 b2 Bd5 Qd6 Bh1 g2 Rg3 Re8 h8B g1R Bd4 Qe5 Bg2 Rh1 Bc5 Rd8 Rg5 Rd6 Ra3 Rh5 Rc3 Rh4 Bh1 Qe6 Kg2 f3+ Kg3 f2 Ng1 f1R Bhe4 Bh5 Nf3 d1Q Nh2 Bd2 Qe2 Re1 Qe3 Rh3+ Kf4 Rh1 Rg6 Re1 Rf6 Qe5+ Kg5 f4+ Bf5 Qe6 Bfe4 Nf5 Qe2 Nd4 Kh6 f3+ Kg7 f2 Rf5 f1R a6+ Kc8 a7 Kb7 Qd3 Ree3 Qe2 Be8 Qe1 Rh6 Qe2 Bh5 Qe1 Kc8 b7+ Kc7 b8B+ Kb7 Rg5 Qeg4 Nb6 Qge2 Bc7 Ra1 Bb8 b1B Rf5 Ra2 Bc7 Rd7 Bf4 Rb2 Qg3 Rdd6 Qg6 Rh3 Qe8 Be3 Bd2 Bd3 Be1 Bc1 Bh4 Re3 Bhg5 Bdc2 Bh1 Bcb3 Bde4 Bg8 Bd5 Bh7 Bhg2 Bc2 Bge4 Ba4 a8B+
2NBn2N/3N1R1R/4b1br/k2pb2n/1r1N2pQ/K4N2/B2Nn1nr/r4q2 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 f5 h4 g5 e4 d5 c4 Kd7 Kc2 Kc7 Kb3 Kb6 e5 d3 e6 d2 e7 g3 e8N g4 h5 g2 h6 f3 h7 f4 Ba3 f2 c5+ Ka5 b6 f3 c6 Nf6 b7 Bd6 c7 Ra6 Ng7 Nh5 Qe1 d1B+ Ka2 Nd7 b8N Ndf6 Qe6 b3+ Kb2 Be5+ Nc3 Ne8 Qg6 Be6 c8N Bc2 Nd7 Qf6 Qh6 Bg6 Bc4 f1R Nf5 f2 Nf3 g1N N5d4 Ne2 Ne4 Rc6 Ra2 Ra1 Ned2 f1N Qg5 Ra6 Qh4 Ne3 Rh2 Ng2 Rh3 Rf8 h8N Rf7 Rh1 Rh7 Rh2 Rh6 Rh3 Rh1 Ra1 Ra8 Rf1 Rh2 Be7 Qf4 Ka3 b2 Ba2 b1R Bd8+ Rb6 Rc1 Qf6 Rc7 Rb4 Ne1 Qf1 Rf3 Rb1 Rf7 Ra1 Nef3 Rb8 Rh7 Rb2 Ndb6 Rbb1 Rcf7 Rb4 Nd7+
1B2kN2/b6K/1Bbq1QpR/BbBr4/qBq1Rnpr/3B3b/7N/1b1q4 b - - 0 1 illegal: No proof kernel
nn2Q1q1/5p1k/qbbNN3/5NNb/2N3b1/1p1r1NRq/R2B3q/BK2n3 b - - 0 1 legal: proof: d4 b5 h4 a5 g4 e5 f4 Nc6 h5 Nb8 Bg2 exf4 b4 axb4 Be4 c5 Bg6 cxd4 g5 Ra6 Be4 Rh6 Bg6 hxg6 gxh6 Qe7 Kd2 Qf6 Ke1 Qd8 Kd2 d5 e4 f3 c4 g5 Kc2 b3+ Kb2 f2 a4 f1Q c5 d3 a5 g4 h7 g5 a6 d4 c6 d2 c7 b4 h6 g3 e5 g2 a7 d3 a8N g4 e6 g3 e7 Nf6 Rh3 Bg4 c8N Nd5 Rh5 Nc7 Ne2 g1Q Nf4 g2 Qe1 d1Q Rh1 d2 Qe2 Qh2 Ra2 g1N Nab6 Qfh3 Ne6 Qdf1 Nc3 d1B Bd2 Nf3 Ne4 Ne1 Rg1 Na8 Kb1 b2 Rg3 Ba4 Qe3 Qa6 Nc4 Bc6 Qe2 Rg8 h8B Rg5 h7 Rd5 Bg7 Rd3 h8N Bh5 Bgc3 Bh6 Ng6 Be3 Nge5 Bb6 Na7 Bg4 Nb5 Bh5 Nbd4 Qdc8 N6g5 Qcg4 Nge6 Qg8 Nef3 Bg4 Ra3 Bh5 Nf5 Bg4 Ka2 b1B+ Kb2 b3 Ra2 Bc2 Ka1 Bd1 Kb1 Kd7 e8N Bh5 N5d4 Ke7 Ba1 Bg4 N8d6 Bh5 N4g5 Kf6 N4f5+ Kg6 Qe5 Be2 Nge4+ Kh7 Qb5 Bd5 Qe8 Bc6 Nfe5 Beg4 Nf3 Bc7 Kc1 Ba5 Kb1 Bb6 N4g5+
2R1nkr1/3b1r2/2n1pq2/n1bN1B2/B1B1r3/Qn3p1B/Nr1p1B1K/1R4B1 b - - 0 1 legal: proof: d4 b5 h4 c5 f4 cxd4 a4 g5 axb5 gxh4 e4 e6 f5 Ke7 e5 exf5 e6 f4 Qe2 Kd6 e7 Kc7 Qe6 dxe6 Ke2 Kd6 Ke1 Kd7 Kf2 Ke8 c4 h5 g4 f5 Kg2 a5 b4 h3+ Kh2 f3 g5 d3 g6 a4 b6 h4 c5 a3 c6 a2 b5 f2 c7 f4 b7 f3 g7 Ra4 b6 Bd7 c8B Rh7 Ne2 Nc6 b8Q Nf6 g8B Re4 b7 Rf7 Nbc3 d2 Rb1 a1N Nd5 Nb3 Qa7 Rb4 b8B Re4 Bg2 f1N+ Kg1 Nb4 Bh2 Nc6 Ba6 Ne3 Ba3 Nc4 Bh7 N4a5 Bb5 Rf4 Nc1 Re4 Bg3 h2+ Kf2 h3 Bc5 Qc7 Bc4 Qf4 Na2 Qh6 Rhd1 h1R Rdc1 h2 Bh3 Rg1 B7f5 h1R Bh2 Rg8 Bg1 Ng4+ Kg3 Qf6 Bgf2 Rd1 Rc2 Rc1 Rc3 Rc2 Bg1 Rb2 Bcf2 Bh6 Qc5 Be3 Qa3 Bc5 Rcc1 Rfg7 Rc3 Kf7 e8B+ Kf8 Rc2 Rf7 Rc3 Qd8 Rc2 Nf6+ Kh2 Bc8 Bd7 Ne8 Rcc1 Qf6 Rc3 Ncd4 Bc6 Bd7 Ba4 Na1 Rb3 Ndc6 Rb8 N1b3 Rc8
3B4/1q3k1B/3N3K/b1n1nr2/bNq1b1qn/2QB2B1/1q1rq1qB/BRnR4 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 c5 Ke3 b5 Kf4 g5+ Kg3 e5 f4 e3 a4 c3 d4 e2 h4 e1Q+ Kg2 g3 Kf3 g4+ Kg2 c4 a5 b3 h5 e4 f5 c2 d5 b2 h6 c3 a6 e3 a7 e2 d6 b4 f6 b3 d7+ Kf7 h7 Bb4 Ra2 Qc7 d8B Bd7 Rh4 Ba4 Be7 Na6 Nf3 Nh6 Rh3 Qb7 Nd2 b1Q Ra1 b2 Rh1 Rhf8 h8B Nc5 Bd8 Ba5 Ne4 Nf5 Bf4 c1N Qd3 c2 Nd4 Qc3 Qe3 e1Q Nc6 N1d3 Nb4 Ne5 Bd3 c1N Qf3 Qa2 Rb1 Qac4 Rg1 Rc8 a8B Rc7 Qe3 Rd7 Qd4 Qa3 Qc3 Qe3 Rd1 Nh4+ Kh1 g2+ Kh2 g3+ Kh3 g1Q Nd6+ Ke6 f7 g2+ Bg3 Qe2 Bg7 Qgf2 Bh2 g1Q Bgf6 Qb8 Bh1 Qb7 Bhe4 Qab3 Bh7 Qg7 Ra1 b1B Bg3 Bc2 Rb1 Qb2 Bh2 Bc6 Bg3 B2a4 Bh2 Be4 Bg3 Rg8 f8B Rh8 Bf8e7 Rf8 Bc7 Qg6 Bed8 Qgh5 Bh2 Qff1+ Kg3 Qfg2+ Kf4 Rff7 Bg3 Qhf3+ Kg5 Qg4+ Kh6 Rf8 Bh8 Rf5 Nc8 Kf7 Bh2 Neg6 Bcg3 Ne5 Nd6+ Kf8 Nc8 Qa1 Bc2 Rd2 Bd3 Kf7 Qb2 Neg6 Qb3 Qa3 Ba1 Ne5 Qc3 Qb2 Nd6+
n6k/2N3N1/BBNK1bQn/2N1Rr2/1qq2p2/nb1Rqr2/bNr2bbN/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f3 Kd3 g5 Kc4 b5+ Kd5 f5 h4 Kf7 c4 Kg7 a4 b3 e4 f2 c5 b2 a5 d3 e5 d2 a6 b4 c6 b3 h5 g3 e6 f4 a7 g4 c7 g2 e7 g3 Bc4 f1R Ke5 d5 Nc3 b1B Ra6 d4 Re6 b2 Qb3 d1B Rh3 d3 Be3 d2 Nb5 Na6 Bb6 Qd3 Na3 Ba2 Rh2 b1N Rh3 Bb7 c8N Nc7 Nf3 g1Q Nh2 g2 Nd6 Rc8 a8N Bc2 Qa4 d1Q Ne4 Qe1 Qc6 Qb4 Ba6 Bcb3 Nc4 Na3 e8N+ Kh7 h6 Be7 Nb2 Qgd4+ Kf5 g1B Ng7 Qe2 Rc3 Qde3 Ke5 Rf8 Qd6 Rc1 Qc6 Qec4 Rd3 Bf2 Qe8 Rc2 Qf7 Qg3 Nc5 Bg2 Qh5 Bg5 Kd6 Rf5 Re4 Qe3 Qg4 Kg6 h7 Kf7 Re5 Bd8 Ba7 Bf6 Qg6+ Kf8 Nb6 Na8 Nd5 Nh6 Bb6 Ng4 Qg5 Kf7 Nc7 Kf8 Nge8 Rg8 h8N Nh6 Nf7 Rg7 Nd8 Kg8 Qg3 Kh8 Nc6 Rg8 Qg5 Rg7 Qh5 Rg3 Qg6 Rf3 Ng7
r3b1N1/1Qr5/1R1n2Bb/1NB2Rbn/r1N3Nr/1q1rN1k1/1N3p2/2nb1K1b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 Ke7 c4 Ke6 e4 Ke5 a4 g5 c5 d5 a5 f5 c6 b5 a6 g3 a7 g4 c7 d3 h5 b3 h6 b2 h7 g2 Nh3 g1N Nc3 b1B Be3 f3 Bc1 g3 Ng5 b4 Rh3 b3 Bd2 f4 Rh6 g2 Nb5 d4 Rh1 b2 Ra4 Bd7 c8N Bh6 Rc4 Na6 Be3 f2+ Kd2 f3 Qe1 Nc7 Ne7 Nf6 Nf5 Nce8 Rc6 Ne2 Nh3 g1B Rb6 Nd6 Nf4 Qg8 Rh5 Qb3 Bg2 Bc2 Qb1 f1R Bh1 Rf2 Ke1 Nc1 Bg2 Rhc8 h8N Be8 Bh3 Rd2 Kf1 Rh2 Rg5 d2 Nd3+ Ke6 e5 d1B Ng6 Nh5 Nge7 Rc7 Bg4 Rh4 Ng8 f2 Bf3 Bh2 Bg4 Kd5 e6 Ke4 e7 Bf4 Bh3 Bf3 Bg2 Bd1 Bh1 Bf7 e8N Bg6 Bg2 Bf7 Bh3 Bh1 Nef6+ Kf3 Ng4 Bg6 Nge7 Be8 Ng8 Rac8 a8N Rb8 Qa1 b1R Nb2 d3 Bc5 d2 Qa6 Ra1 Nfe3 Ra4 Rf5 Kg3 Qb7 Bfg5 Bg2 Rbc8 Be4 Rb8 Rc6 Rd8 Nb6 Rb8 N6c4 Rba8 Nc2 Bdf3 Rb6 d1R+ Ne1 Rd2 Ng2 Bd1 N2e3 Rd5 Rf6 Rd2 Bg6 Rd3 Rf5
3n3b/nR2q1bK/N1B5/1Bb3kB/1B6/r2Q1pNq/qqb1B1r1/1qb1R1B1 b - - 0 1 illegal: No proof kernel
2K2N2/2QRb1Nq/6BR/1n1r1nBN/q1n1k2p/1N1N1nq1/6qr/n2bN2r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 Kf5 a4 b5 c4 b3 a5 f3 e3 b4 g3 d3 c5 d2 c6 b2 c7 h3 a6 f2 a7 h2 Qa4 d1N Bc4 f1N Qb3 Ne7+ Kd6 Ke4 g4 f5 g5 f4 g6 f3 g7 f2 g8N Nd2 Qa2 f1Q Qb3 Nf3 Bd2 Na6 Qc3 b3 Bf7 Qg2 Bc1 Rb8 a8N Nc5 Ra7 Rb5 Nb6 Qe8 Qa5 Nc3 Na4 Bb7 c8N Nf5+ Kc7 d5 Kb8 d4 Bg6 d3 Qc7 Qe5 Ncb6 d2 Nd7 Be7 Nf8 d1Q Bd2 Bc6+ Kc8 Qeg3 Rb7 Ra5 Ra7 Nb5 Nf6+ Kd3 e4 Rh7 Na3 b1Q e5 b2 e6 Nb3 Bg5 Na1 Nh3 Kd4 Nc5 Qa4 Nf2 Ba8 Rf1 h1R Nfd3 Bd5 Ra6 Bb3 Rd1 Qbc2 Rc6 b1N Ra6 Nbd2 Rc6 h4 Nh5 Nc4 Ra6 Qb1 Nc2+ Kd5 Rc6 Rf7 Nce1 Rg7 Rd2 Bd1 Nb3 Ke4 Rd6 Nbd4 Rd7 Rd5 Ra2 Nb5 Rc2 Bc5 e7 Rf7 e8N Be7 Neg7 Rf6 Nb4 Rfd6 Rc3 Rd2 Nbd3 Rd5 Rc1 Ncd6+ Kb8 Q2f2 Nb2 Ke5 Bh7 Ne3 Rc6 Nc4 Bg8 Qh7 Nbd3+ Ke4 Bf7 Nf5 Kc8 Qf1 Rf6 Rdh2 Rh6 Qfg2 Bg6
q4r1N/2n3Kb/3N4/knB3pN/NqR1Qb1b/1q1NRq1B/3b3q/1n1r2N1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 Kd7 f4 Kc7 c4 Kb6 h5 g5 f5 d3+ Ke3 b3 c5+ Ka5 h6 b5 h7 d4+ Kf2 g3+ Kg2 b4 Kh3 d2 Kg4 g2 Kh5 e3 Kg6 b2 f6 b3 c6 e2 c7 e1B f7 e4 Qf3 d1Q Qd3 e3 Qe2 d3 Qh5 d2 Na3 b1Q+ Nc2 b2 Ra3 e2 Qh3 Bh4 Re3 e1B Qf3 Na6 Qe4 Nh6 Nb4 Qb3 Nd3 Bd6 f8N d1Q Nd7 Bf4 Nf6 Qf3 Nh5 Rf8 h8N Bd2 Kg7 Bf5 c8N Bh7 Nd6 Nf7 Rh3 Nc7 Rg3 Qa1 Rg4 b1N+ Bb2 Rc8 Bd4 Qaa3 Ba7 Qab4 Bc5 Ka6 a5 Rb8 Ne2 g1Q Bh3 Qh2 Ng1 Rb7 Nf5 Kb5 a6 Qa8 a7 Ka5 Nd6 Rbb8 Qc6 Rbd8 Qe4 Qab7 a8N Qc8 Nb5 Nd6 Nb6 Qa6 Na4 Qa8 Nd4 Ndb5 Nf5 Rd4 Nd6 Bde1 Ndb2 Rd1 Nd3 Bd2 Qc6 Bfg3 Rc4 Bf4 Qe4
2kB1N2/1r2qB2/r2b1p1B/n2n3K/1b3qR1/N2RrQ1b/1B2BrBb/1q2b3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 g5 e4 b5 a4 c5 d4 g3+ Kf3 c3 Kg4 c2 a5 c4 d5 g2 d6 b3 h5 f6 a6 b4 e5 b2 a7 c3 h6 f3 h7 f2 Ra4 b3 Rh6 Nc6 Na3 b1Q Ne2 g1B Rh1 b2 Nf4 Qe7 Rh2 Na5 Ba6 f1R Bd2 c1Q Rg2 c2 Re2 Bh2 Bb4 Rf2 Ne6 Qf4+ Kh5 c1B Re3 g4 Rd3 g3 Bc3 g2 Qf3 g1B Re4 Bd2 Bc4 Rb8 a8B Rb6 Red4 Ra6 Be4 Bg7 Nf8+ Kd8 e6 Be1 d7 Bg3 Rd5 B1h2 Rg5 Kc7 d8B+ Kb8 Ng6 Bf8 Rg4 Bd7 Be5+ Kc8 Bb5 Qc5 Bec6 Ne7 Ba8 Rg8 h8B Nd5 e7 Bb4 e8B Bd6 Bf7 Re8 Bd4 Re3 Bg7 Qc7 Bac6 Be6 Nf8 Qe7 Bh6 Bd7 Rg7 Bh3 Ba8 Qc1 Rg4 b1R Bac6 Rb3 Bb2 Qb1 Bg8 Rc2 Bf7 Bge1 Rd4 Rf2 Be2 Bbc5 Rd2 Rb7 Rd3 Bcb4 Qg3 Nb6 Bg2 Nd5 Qf3
1qn4K/RpN3rb/1n2kNR1/4b2B/2N1b3/2r3Qn/2NNq1N1/1qr1Bb1n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 d5 c4 f5 a4 h5 e4 h3 g4 h4 c5 h2 e5 h3 e6 d3 c6 d4 c7 b3 a5 b2 a6 d2 g5 d3 a7 Nd7 g6 Bg7 Qb3 d1R Na3 b1Q Ne2 d2 Nc2 Rh7 Rg1 Be5 g7 h1N Rg6 h2 Bh3 Rb8 a8N Nb6 Ra7 Qd6 Bb2 Rc1 Bc3 d1N Be1 Ndf2 Bg4 Nh3 Bh5 Bd7 Qe3 Rc8 Qg1 Bb5 Qg2 Bd3 Qg3 Ke8 e7 Kf7 e8N Ne7 g8N Rg7 Ngf6 Ke6 Nc3 Qd8 Nd6 Qf8 Nc4 Be4+ Ke2 f3+ Ke3 f2 Ne2 f1B Nd2 Bd3 Kf3 f4 Kg4 f3 Kh4 f2 Nf4+ Kf7 Ng2 Ke6 Rg4 Bh7 Rg6 Rd8 c8N Rd3 Nd6 Rc3 Kg4 Qb8 N6c4 Nec8 Kh4 Bd3 Kg4 f1B Kh4 Be4 Kg4 Ng1 Kg5 Nh3+ Kh6 N1f2 Bd1 h1Q Bh5 Qh2 N2a3 Nh1 Nc2 Re7 Nc7+ Kf7 Nf4 Qe2 Ng2 Rd7 N4e3 Ke7 Kg7 Kd6+ Kh8 Rg7 Nec4+ Ke7 Na6 Ke6 Nc7+
1Bq1nbbR/2Bn4/rBNB4/b1bQ4/kp1bN2r/3qBq2/1n3Rp1/1BK5 b - - 0 1 illegal: No proof kernel
3b1r2/2R1rRBB/1bBKp1b1/3NB3/2Nq1B1k/1rb1npqB/nq4b1/7Q b - - 0 1 illegal: No proof kernel
1BR4q/rqB2b2/R3p3/1BqqN3/1nBbp1Bk/1q3rB1/4bN1K/r2Q3n b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 c4 Kf7 a4 Kg6 f4 Kh5 Kf2 d5 Kg3 g5 h4 b5 f5 d3 c5 d2 c6 d4 f6 d3 f7 b3 a5 b2 c7 b4 a6 b3 a7 Nc6 Ne2 Nf6 Kh2 g3+ Kg1 g4 Nec3 g2 Qf3 d1B Qh3 d2 Rh2 Bg7 f8B Nb4 Ra6 Be6 c8B Bf7 Bc4 Be2 Na3 b1Q Qf3 b2 Nd1 Qd5 Bb5 Qa1 Nc4 b1Q Nf2 Qc3 Rh1 d1Q+ Kh2 g1R Ne5 Qd1b3 Bf4 Qcb2 Bf5 e6 Bd6 Rhf8 Bb8 Q2a1 Qd3 Rf1 Qd1 g3+ Kh3 g2+ Kh2 Re8 Bc7 Re7 Bc4 Rf8 a8B Re1 Bb8 Ra7 Bc6 Qad4 B6b5 Q1b2 Qd2 Ra1 Rc1 Qb6 Qd1 Qbb7 Bd3 Qbd4 Rc8 Qdb2 Bdc4 Ng4+ Kg1 Ne3 Kh2 g1Q+ Kh3 Qg5 Kh2 Bf6 Bh3 Nf5 Bc7 Ng3 Bg4+ Kh6 h5 Nh1 Nd7 Bd4 Ne5 Kg7 h6+ Kf6 h7 Qc5 Nc6 Qgd5 h8B+ Kg6 Bb8 Q2c3 Bfc7 Kg5 Ne5 Kh4 Bg7 Qd2 Bh8 Qh6 Bg7 Qh8 Bh6 Bg6 Bc1 Rf3 Bf4 Bf7 Bg3+
1q1nb1Nr/q5k1/rrB3pR/BQ4b1/bb1B4/3KRnq1/p3BB2/n4BN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 c4 Kf7 h4 d5 b4 a5 e4 f3 e5 f2 h5 a3 b5 f4 h6 g3 c5 d3 h7 g6 b6 a2 e6+ Kg7 b7 d4 c6 a4 e7 g2 e8B a3 c7 f3 Qe2 Bd7 c8B Nh6 Qe7+ Nf7 Qb4 Ne5 Qb5 Ra6 Qb6 Bb4+ Nc3 Nbc6 Nh3 g1B Be2 f1Q b8B f2 Rh2 Qg2 Qb5 f1Q Bb7 Qff2 Bc8 Qgg3 Rb1 a1N Rb3 a2 Ba7 Qf7 Bb7 Qb8 Bf1 Nd8 Bf3 Bf2 Ng1 Qe7 Rh6 Be3+ Kd1 d2 Ke2 d1R Bd2 Qf7 Nd5 Rb1 Nf6 Bg5 Re3 Rb3 Bh5 Nf3 Ng8 Bc6 Bb6 Qfa7 Ba5 Bd7 Be1 Bc6 Bf2 d3+ Kd1 d2 Ke2 Rb1 Kd3 d1B Bd7 Ba4 Bhg4 Bd5 Bc6 Bf7 Bh5 Be8 Bg4 Nh2 Bge2 Bbe7 Qc5 Rbb6 Qb5 Bb4 Ne7 Rf8 Ng8 Nf3 h8B+ Kf7 Ne7 Rg8 Bd4 Rh8 Ng8 Kf8 Re5 Kg7 Re3+
n5k1/1q2r2B/4n1n1/BBnQB1br/R1K1bn1B/p3B2r/1qN4p/3n1R1N b - - 0 1 illegal: No possible last move
1K1Q2BN/3R2rp/bB1R2p1/nqBr4/1rB2n1r/r3k2q/2Bq4/b2rB2N b - - 0 1 illegal: No possible last move
5r1n/2Rp1p1K/R1rn3p/1q3RRb/k1N1RN1r/rbQ3R1/5n2/2Bn1Bb1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 h3 Ke4 b3 Kf5 f3 e4 b2 a4 b4 c4 h6 g4 d3 c5 h2 c6 f2 g5 d2 c7 b3 g6 Ke7 e5 Nc6 a5 Ba6 c8R Be2 a6 Nf6 e6 Kd6 g7 Kc5 g8R Kb4 e7 Qa5+ Kf4 Bh5 e8R Ne7 a7 Qb5 Na3 b1R Bg2 f1R+ Qf3 d1N Nc4 b2 Ra3 Ne4 Ne2 Nd6 Rg5 Rg1 Rb3+ Ka4 Bf1 Ra1 Rb8 b1B Qc3 Ra3 Rb6 Bc2 Rc8 Rb8 Rc7 Rc8 Rf5 Rg3 Rg1 Rh3 Rgg5 h1N a8R+ Qa6 Rcb7 Rh4+ Ke5 Ng6+ Kf6 Rc6 Nf4 Nhf2 Re8 Qb5 Re4 Be7+ Kg7 Rf8 Kh7 Nh8 Rc7 Bf6 Qe1 Bd4 Rbg3 Bb3 Qe3 Nh3 Qd2 Bg1 Qc3 Nhf2 Ra6+
2r2q1B/1N3nb1/1qr2Rb1/4pp2/5qrB/2p3N1/bB1BKpBn/1k3RBQ b - - 0 1 illegal: No proof kernel
2r2r2/3Rn2p/Qpk1R2K/1q1n1NrN/1BB1R2p/8/p3q1nb/R2bqR1R b - - 0 1 illegal: No proof kernel
Kn1BBqBQ/B1N4b/2pp4/1RBp2r1/2Rr1p1n/k2N1bB1/1b5n/3bb3 b - - 0 1 illegal: No proof kernel
bn5R/1pr1bRp1/1N4n1/2k5/2p1p1bN/R2p2Kn/Q2R1r1R/R1qn1BB1 b - - 0 1 illegal: Other
1rrN4/R6r/qB2Kb2/nrBnB2R/q4Q1B/2qq1bn1/1R1N2R1/1q1k4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 d5 c4 f5 e4 a5 c5 g5 c6 a4 b6 g4 c7 d3 b3 a3 b7 f4 h5 d4 h6 a2 h7 d2 Qe1 d3 Rh5 f3 Rh3 f2 Rh6 f1N Rd6 Nf6 Qf2 d1R Be3 d2 Ne2 g1Q Rd5 g2 Bb6 g3 Qf4 Be7 Nd4 Rc1 Ne6 d1Q Nd2 Kc3 b4 Kc2 b5 Qe3 Kf5 g1R e5 Nc6 b8B g2 B8a7 Ba6 c8R Bb7 Rb8 Na5 Bc5 Qd6 b6 Qc3 Nd8 Bc6 Rb7 Rb8 e6 Qd7 Rb1 a1Q Re5 Qdf3 Rb2+ Kd1 Rc7 Nd5 b7 Bh4 Bab6 Bf6 Re2 Qe8 e7 Ng3+ Ke6 Qfd3 Rf2 Qeg6 e8R Qa4 Rg8 Qh6 Rg5 Rh1 Re5 g1Q Rg2 Rb1 Rh5 Rc8 b8B Ba8 Ra2 Rb5 Ra7 Rf8 h8B Qhg6 Rf5 Rh7 Be5 Qh1 Rb2 Rb8 Nf7 Rfc8 Nd8 Qhf1 Bg7 Qb1 Rh5 Qfd3 Bh8 Bh4+ Bhf6 Nb4 Bbc7 Bd5+ Kd6 Bf3+ Bcd4 Nd5 Bc5 Rh8 Kd7 Rh7+ Bfe7 Qa6 B7b6 Bg5 Ke6 Bh4 Bf8 Be7 Bh6 Bf6 Bg5 Qab4 Bh4 Qbe4 Rg7 Qa4 Ra7
b1KNBn2/4BQbR/N1n2r2/q2nb1RR/B4r2/2R3rk/7r/1B2q1br b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Ke6 h4 f5 a4 d5 c4 b5 e5 g5 c5 b3 c6 f3 Kg3 b4 a5 d3 c7 f2 a6 d2 h5 f4+ Kh2 Kf5 a7 g3+ Kh3 b2 h6 f3 h7 g2 e6 d4 e7 g4+ Kg3 b3 e8B d3 Bf7 Ne7 Ra6 Ng6 Nh3 g1B Rb6 Nc6 Bc4 Bg7 Nf4 Bb7 c8R Nf8 Na3 b1N Nc2 b2 Bb3 Nc3 Nb4 b1R Na6 Nd5 Rb5 Qa5 Rh6 Bh2+ Kh4 g3 Ne6 g2 Ba3 g1B Be7 Rb8 a8B Bhe5 Nd8 Ra1 Qc2 d1Q Ba4 Qde1 Qa2 d2 Bd3+ Kf4 Rc7 d1Q Bb1 f1R+ Qf2 Rg8 h8R Rc8 Kh3 Ra2 Qa7 f2 R8h7 Kf3 Kh4 Kg2 Kg5 Rh8 Kf5 Qh5+ Bg5 Kh3 Rc5 Nd7 Ke6 Rf8 Bh4 Rf4 Be7 Ra3 Rb5 Rg3 Rc5 Bh2 Rc3 Rh1 Rc5 f1R Rc3 Ncb4 R7c5 Bg1 Rb5 Rcc4 Qf2 Rh4 Qf7 Bc6 Bb7 Rcf4 Bc8 Ba8 Rbc5 Nb8 Bcd7 N4c6 Be8 Nd7 Rb5 Kg4 Rbc5 R4h2 Rb5 Kh3 Rbc5 Bef6+ Kd6 Nf8 Rb5 Ne6 Kd7 Nf8+ Kc8 Bfd4 Rbc5 Rf6 Rb5 R1f4 Rbc5 Ndb4 Re5 Nd5 Rg5 Be5 Rhxh5+
K2k2R1/B1N2BpB/b1B3b1/R5R1/n1rqr2q/1Q1r3b/5RNq/2n3rr b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 h5 Bb2 exf6 Ba3 f5 Bc1 f4 g4 hxg4 a3 b5 Be3 b3 Bh3 b4 Bf1 b2 Bd2 b3 Bc1 Bb4+ axb4 Ra7 Ra3 Ra5 Ra1 Ra8 Kd2 f5 Kd3 d5 c4 g3 e4 f3 h4 f2 c5 f4 b5 g2 e5 f3 e6 Ra4 b6 Bb7 c6 Nf6 e7 Na6 c7 Ne4 c8B Nd2 h5 Rc4 Na3 b1R h6 b2 h7 Nb3 Nh3 g1Q Bf5 Qh2 Bg2 f1R Nf4 f2 Rg1 Re1 Nb5 Re4 Be3 Bc8 b7 f1B+ Qe2 Re1 b8R Rec1 Bh1 Bh3 Rg5 b1B+ Qc2 Rg1 Ng2 Bb7 Ra5 Nc1+ Kd2 d3 Qb3 Bc8 Ba7 d4 Rb6 Nc5 Rf6 Ba6 Rf7 Rg8 h8R Na4 Bh7 Kd7 e8B+ Kc8 Re5 Qh4 Rf2 Kd8 Rg5 Rf8 Rg8 Rf3 Ne1 Rfg3 Bf3 Rh1 Nc7 Rgg1 Bf7+ Re8 Kd1 d2 Bc6 Bg6 Rgc5 Rc3 Rg5 Rd3 Kc2 d1R Ng2 R1d2+ Kb1 Rc2 Ka1 Rc4 Kb1 Nc3+ Kb2 Na4+ Ka3 Rg3 Bb6 d3 Bc5 d2 Ba7 d1Q Bf3 Rf4 Bc6 Be4 Kb4 Rd3 Rab5 Bg6+ Ka5 Rc4 Rbe5 Nb2 Kb6 Qdg4 Ra5 Qd1 Bb8 Na4+ Ka7 Qdg4 Ka8 Qd4 Bf3 Kd7 Bb7 Re4 Ba7 Ke7 Bbd5 Kd7 Bc6+ Ke7 Bce8 Kd8 Bc6+
N1NrRb2/K2R1qb1/2B1k2r/N1B1n1qr/q4R2/4R2n/r1p3N1/3Qnb2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 Kf2 Kd7 d4 f5 g4 c5 e4 h5 d5 h3 b6 h4 g5 c3 b7 h2 g6 f3 Ke3 c2 g7 f2 d6 f4+ Kd3 c4+ Kd4 f3 Kc5 b3 e5 h3 Bf4 c1B Bg3 c3 Qe1 b2 Qd2 c2 Bg2 f1Q Bf2 Nh6 g8N Ke6 Ra3 Ng4 Qd1 Qa6 Re3 Qa4 Nd2 b1N Ne7 Nc6 b8R Bb2 d7 Ba6 Nc4 Nd2 Na5 Bf1 Ne2 Ra6 Rg1 h1R Rb4 h2 Rf4 Qe8 d8R Qh5 Rdd4 Qg5 Rd7 Ra8 Kb6 Rg8 Bh4 f2 Nc8 Nf3 Kb7 Ne1 Bf3 Nb4 Bc6 Nd5 Rgg3 Ra6 Ree4 Rh8 Rge3 Rh5 Bg3 Rg1 Kb8 h1R Bh2 Rg3 Bg1 Rh6 Kb7 R1h5 Kb8 Ra8+ Kb7 Rb8+ Ka7 Rgh3 Ng3 Ba1 Nf5 Rb2 Nh4 Ra2 Ng2 R3h4 Rf5 Nf4 Rff7 Nh3 Rfe7+ Kf5 e6 Bag7 Re8 Ne5 e7 Ke6 Rf4 Rh8 Red8 R5h6 e8N R4h5 Ref3 Ba6 Re3 f1Q Bf2 Qd3 Bg1 Qdf5 Bf2 Bf1 Nc7+ Kf6 Na8 Ke6 Ree4 Qf7 Bc5 Bd6 Re3 Re8 Rb7 Bdf8 Rdd7 Rd8 Rbb3 Bh8 Rb8 Bhg7 Ne7 Rc8 Kb6 Rc7 Re8 Rc8 Ka7 Rd8 Nc8+
R1RR2N1/bq4rr/3B2R1/N2B2rp/1bn1bQB1/3nb3/1k1r2nK/B1b5 b - - 0 1 illegal: No possible last move
BrN5/3r2n1/1RrQ4/1nq3pb/1R1rn2k/BNR4b/BbK3R1/2nB2n1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 Ke7 h4 Kf6 e4 d5 c4 d3 b6 b3 b7 g3 c5 f3 c6 f2 c7 g2 h5 Kg5 e5 f5 e6 f4 h6 f3 h7 b2 e7 d4 e8B Bg4 c8B Nd7 b8R Ne7 Rb7 Ne5 Rh6 Bh5 Ba4 Kh4 Rf6 g5 Na3 Qc7 Bad7 Rb8 Bh3 Nf5 Nb5 Qc5 Ra2 Bg7 Qb3 b1N+ Kd1 d2 Qd5 Na3 Ra6 Nd3 Ne2 g1N Na7 Nb5 Be6 Rhc8 h8R Rc6 Ba3 Nc1 Bfg2 f1B Bg4 f2 Nc8 Be5 Bh1 Bh3 Rab6 f1N Qd6 N1g3 Rf8 Ng7 Rf3 Bf6 Rc3 Ne4 Kc2 d1R Rb2 Be5 Ba2 Bf6 Bg2 Rd3 Rb4 Rd1 Rf7 Be5 Rf2 d3+ Kb2 d2 Nd4 Bf6 Nb3 Bd4 Kc2 Be5 Rcc4 Bb2 B2f3 Rf1 Rh2 d1R Rc3 Rd4 Rg2 Re1 Bd1 Rf1 Bd7 Rf7 Be6 Rd7 Bd5 Rcc7 Bb7 Rc6 Ba8
3n2Bb/2bq2R1/p1R3q1/5nB1/QnN2NBN/3q2q1/3kr1BN/r2n1K1b b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 g4 Ke7 b4 Ke6 e4 Ke5 b6 f5 b7 d5 b5 h5 b6 f3 g5 f2+ Ke2 d4 g6 h3 g7 c2 Bd2 c1B Qb3 h4 Rh2 d3+ Ke3 f4+ Kf3 Kd4 e5 Qd7 e6 Bd6 e7 Nf6 e8B Nd5 g8B Nc6 b8N Ndb4 b7 Bc7 Qc2 Bb2 Bc1 d2 Ke2 d1N Qb3 f3+ Kd2 Nd8 Rh1 h2 Bg2 f1Q Na3 f2 Nh3 Qg1 Nc4 f1Q Nf4 h3 Qa4 Rh7 Ra3 Re7 Bh5 Qf3 Rc3 Qg3 Be2 Qf1 Rg1 h1Q Rc2 h2 Bg4 Qff3 Nc6+ Ke4+ Nd3 Bh8 b8N Bb7 Nd4 Re5 Nbc6 Re7 Rf1 Qg1 Nf4 h1N N6e5 Bd5 Nf5 Qb6 Nd4 Qg6 Nf5 Re6 Nh4 Kd4 Rf2 Qfd3+ Ke1 Re7 Re2 Kc3 Nef3 Re5 Kf1 Re6 Kg1 Re3 Re1 Re2 Nh2 Bf3 Kf1 Bd5 Nh5 Be4 Bg5 Bd5 Ne3 Kd2 Rf6 a6 Rf7 Qf4+ B2f3 Na2 Neg2 Ndf2 Rh7 Ng3+ Kg1 Rb8 Rg7 Rb1 Ne3 Ra1 Rc1 Nd1 Rc6 Nf5 Kf1 Qg3 Nf4 Nb4 Nc4+ Kc1 Bg2 Be4 B2h3 Bh1 Qb5 Kc2 Bg2 Kc3 Qa5 Kc2 Qa4+ Kc3 Nd6+ Kd2 Nc4+
k2Bb1r1/1B2n2R/8/K1bB1rRr/b3b2b/1RNn4/1bn1pNR1/r1B3Q1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e5 h4 d5 a4 Kd7 f4 Kc7 c4 b5 c5 Kb7 a5 g5 f5 b3 h5 b4 h6 b2 f6 g3 f7 g2 h7 d3 Rh6 e3+ Ke1 e4 Qd2 d4 Qe2 d2+ Kd1 b3 Rh2 g4 Qc4 g3 Qa4 Qd7 Ne2 g1R Rh5 g2 Nbc3 b1B Rd5 b2 Rf5 Na6 Re5 Bg7 f8B Ne7 Re6 Nb4 Nf4 Nc2 c6+ Ka7 a6 Qb7 c7 Bd7 c8R Be8 Ke2 d1N Rb6 Nf2 Rc5 Nd3 Rg5 Rh1 Qb4 g1B Nh3 Rg8 Nf2 Rh5 h8R Be5 Kd1 e2+ Kd2 Kb8 Ra2 e1B+ Ke2 e3 Qc5 Ra7 Rb3 Ka8 Rh7 Bh8 Nh1 Bh4 Nf2 Ndb4 Bg7 d3+ Kd1 d2 Bf6 Nd3 Qd4 Nc8 Bd8 Ne7 Qg4 Bd4 Qg2 Bc5 Be2 Bh2 Qg1 Be5 Bf1 Qb4 Ke2 Rb7 a7 Rb5 Kd1 Ra5 Ke2 Qb7 Kd1 Nf4 Ba6 Nd3 Ra4 Bf6 Rag4 Ra1 Ke2 d1R Rg2 Rf1 Ng4 Rf5 Nf2 Ba2 Kd1 e2+ Kd2 b1B Rh6 Nf4 Rh7 Nfd5 Kd3 Nf4+ Kc4 Nd3 Bb6 Nc6 Kb5 Ne7+ Ka5 Ba4 Bd8 Bfd4 Rb4 Bf7 Rb3 Bfe8 Nd5 Bb2 Nc3 Qf3 Bb5 Kb7 a8B+ Ka7 Bd5 Qe4 Be6 Qb7 Ba6 Ka8 Bd5 Ba2 Rb6 Bc4 Rb4 Bcb5 Rb3 Bbc6 Bdc4 Bf3 Bd5 Be4 Baxb7+
B2qq3/Rb1r4/4q3/B5n1/pNN1RpQ1/R2n1rNR/K1k1b3/nn1n1N2 b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 a4 b5 g3 bxa4 Be3 c5 Bd2 cxd4 Bc1 Bh6 Rh2 g4 Rh1 Bg5 hxg5 fxg3 Kd2 Ke7 c4 Ke6 Kc2 Ke5 e4 a5 b4 h5 Kb2 f5 b5 d5 c5 d3 c6 Kd4 g6 a3+ Kb3 a2 c7 h4 b6 d2 g7 h3 b7 g2 e5 a4+ Ka3 f4 e6 g3 e7 h2 e8R Ra7 Re7 Nc6 b8R Nf6 g8N Bb7 c8N Nh7 Nb6 Nb4 Rd7 Ng5 Nh3 g1Q Bb5 g2 Nc8 Nd3 Rh7 Qe1 Nh6 g1N Qg4 d1N Bd2 N1f3 Bc6 Qe6 Ba5 Nd2 Nb6 Qde8 Re1 h1Q Nf2 Qh4 Rc7 Rh7 Nc4 Rd7 Re5 Ra6 Ra8 Rb6 Ra7 Rb4 Nh1 Rb6 Ng8 Qh8 Rc8 Qhf6 Re3 Qfd8 Ne7 Rb4 Rh3 Ke4 Bb5 d4 Nd5 Rb2 Rc6 Rc2 Ba6 Rc1 Rb6 Rc3+ Rb3 Nc5 Ng3+ Kd3 Bb5 Kc2 Bc6 Rf3 Re3 d3 Re4 Q8f7 Nbc3 Qfe8 Nce2 Nb1+ Kb4 d2 Nf1 Nbc3 Ka3 Nd3 Neg3 Ba8 Rb1 a1N Rb3 Nb1+ Ka2 Bb7 Ra3 Ne3 Nh2 d1B Nhf1 Be2 Nb4+ Kd1 Na6 Kc2 Bd5 Nd1 Bc6 Bc8 Ba8 Bb7 Nb4+
3bN3/BN2B2R/1N1b1KBr/5nr1/3B2rQ/1q4pq/1krq1p1R/1b3Nn1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 g5 h5 f5 h6 d5 b6 b3 c5 f3 Kg3 f2 c6 b2 b7 d3 c7 Kd4 h7 f4+ Kh2 f3 Kg3 d2 e5 Nh6 e6 Nc6 b8B Nf5+ Kh2 g3+ Kh3 g2 Kg4 Ra4 e7 Ne5+ Kh5 g4 Kg5 g3 Nh3 g1B Bd3 f1Q Nf4 Qh3 Qe2 d1Q Qd2 Qb3 Nc3 b1R Qe2 Rb2 Ng2 Rc2 Ne4 Qd6 Nc5 Kc3 e8N d4 Be3 Kb2 Rh2 Be6 Be4 d3 c8N d2 Ba7 d1R Nb7 Qd2 Kf6 Bd6 Bg5 Bb6 Qc4 f2 Ne3 Nf3 Nf1 Ng1 Bh4 Rg8 h8B Rg5 Bg7 Bbc7 Nb6 Bg8 Bd3 Bh7 Qe4 Bd8+ Qe7 Ne3 Bg6 Rag4 Ra5 Nf5 Rc5 Ra1 Rc7 Ra6 Bh8 Bg8 Rd7 Bd5 Rc7 Be4 Rd7 B8c7 Qd8 Bd3 Rh7 Be4 Qe7 Bd8 Nc4+ Kb1 Kf7 Rh5 Rg7 Rc1 Rh7 Ba3 Bhd4 Re6 Nb6 Bd6 Bg5 Ka2 Bh4 Bb1 Qg5 Rc8 Qh6 Rc5 Be7 Rhg5 Qh4 Rc2 Bh5 Reg6+ Nd5 Rh6 Bg6 Ka3 Kf6 Ka2 Nb6 Ka3 Be3 Kb2 Bd4+
1n1B1b2/q1Nb1bk1/2r2rN1/RK5p/BR1p3N/r4N1n/1Rqn4/QR3r2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 h5 Kd3 f5 Kc4 Kf7 g4 d3 e4 d2 g5 f3 b6 d5+ Kb5 f4 c4 d4 c5 h3 e5 b3 b7 h2 c6 b2 e6+ Kg7 e7 f2 g6 f3 c7 Bg4 c8N Nh6 Ra5 Nf7 Bd3 f1N Bc2 f2 Ba4 Ng5 Nf3 Nh3 Nh4 Rh6 Qe1 d1Q Bg5 Qc2 Nd2 b1B Ndf3 Ba2 Qa1 Nd2 Rb1 h1R e8N+ Kh8 Ne7 f1R Nc7 Bf7 Rb4 Kg7 Rb1 Ra6 Rb4 Rc6 Rb1 Na6 b8R Bd7 Rb6 Qb8 Rb7 Kh8 g7+ Kh7 g8R Qa7 Rb4 Rhf6 Neg6 Nb8 Rh8+ Kg7 Rb6 Rfe6 Bd8 Rf6 Rb7 Rhg1 Rb1 Rg3 Rb2 Bb4 Re8 Bc5 Re1 Bb4 Reb1 Bf8 Nh2 Rgc3 N2f3 Ra3 Rb6 Rcd6+ Rc6 Bg4 Rc4 Rc6 Rcb4 Bc8 Bb3 Bd7 Ba4
bN3BN1/1qR2kN1/3R3K/1N4r1/1rQp2r1/Bpr3bn/rnB1B3/1b1r4 b - - 0 1 illegal: No possible last move
R4N1r/N3b3/RKnrp3/Q4b2/1RBp1kbB/1B1r4/3Br2q/r1bn3R b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 Kf7 c4 Kg6 g4 Kg5 c5 d5 f3 h5 c6 h3 b6 d3 Ke3 d2 Kd4 e3 Kc5 e2 b7 e1B c7 d4 Na3 b3 Bb5 h4 Bd3 h2 Bc4 b2 Kb6 b1B Nb5 h3 Na7 Nc6 b8R Bbf5 Ne2 Nf6 Qa4 Ne4 Qa5 Qd6 Nf4 d1R Bd2 Nc3 Ng6+ Qf4 Ra3 Ra1 Ra4 Nd1 Rb7 Bh6 Nf8 Bh4 Rb8 Bd7 c8R Ra3 Rd8 Rd3 Rb4 Bc8 Rd6 Bd7 Re8 Rd8 Rf6 Be6 Bb3 Rd6 Ra8 Qe3 Bc4 Kf4 g5 Bd7 g6 B4g5 Bc3 Qf2 g7 Qb2 g8B Bh4 Rg1 h1R Bb3 h2 Bgc4 Qc2 Be1 B4g5 Bh4 Qd2 Rg6 Bg4 Re1 Bdf5 Rf6 Rf1 Rg6 Rf2 Rh1 Ke3 f4 Re2 Rg1 h1R Rf6 Bh7 f5 Kf4 Rg6 Qc2 f6 Qa2 f7 e6 Rg8 Be7 Re1 Rhh3 Rh1 Rhf3 Rg5 Rf1 Rgb5 Qd2 Ra4 Qb2 Rbb4 Bhf5 Rh3 Nf2 Nd7 Qc1 Nf8 Ke4 Qb5 Qf4 Rh1 Ra1 Ra6 Nd1 Qa5 Qe5 Ng6 Bhg5 f8B Bc1 Bh6 Qh2 Bd2 Kf3 Nf8 Ke4 Bde1 Kf4 Bd2+
1N6/1nq3R1/3N1n1B/1nN2B1p/1kR1rp1q/r1N1B2n/1B6/bK1nq1Qr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Kd6 e4 a5 d4 f5 Kd2 h5 Kc2 c5 d5 c3 g5 h3 b5 f3 b6 a3 b7 h2 g6 f2 g7 a4 Bb5 f1N Ne2 c4 e5+ Kc5 e6 a2 e7 a3 e8N f4 d6 Nf6 g8N Be6 d7 Kb4 Bb2 Nc6 b8B Na7 Be5 Ne3+ Kc1 c2 Qd3 Nd1 Qd4 Bg7 Bc6 Nb5 Re1 h1N Qg1 Nhf2 Bed4 Nh3 Ne7 Qc7 Nd6 Rhe8 d8B Ra4 Kd2 c1N Kc2 c3 Be4 Bc4 Bf5 Nb3 Ng3 Nc5 Be3 Nb7 Nge4 Ra8 Kc1 c2 Nbc3 Bh8 Rb1 a1Q Nc5 a2 Re2 Ra7 Rd2 Ra3 Rd4 Bg7 Nec8 Re7 Nb6 Re4 Nbd7 Bh8 Be7 Qd8 Bf8 Qe7 Nb8 Qd8 Kd2 c1Q+ Ke1 Qc2 Bh6 Qc7 Rc1 Qh2 Rc2 Qb1 Rg2 a1R Rg7 Qg3+ Kd2 Qh4 Bc1 Ndf2 Bb2 Qe1+ Kc2 Nd1 Bbc1 R1a2+ Kb1 Rh2 Bb2 Rh1 Rd7 Bg7 Rf7 Bh8 Rg7 Qe2 Rg6 Ra2 Rd5 Na7 Ncb5 Ng8 Bbc1 Ba1 Rd4 Ra3 Rg7 Qee1 Nc3 Nb5 Bb2 Nf6 Rxc4+
B2K2Nb/1N2RR2/1k2q1q1/2Rn1qB1/3r4/BbnB3p/Rbp2Q2/2n3qb b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 h4 exf4 g3 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Na3 g4 Nb1 Rg5 hxg5 fxg3 e4 Kd7 Ke2 Kc6 Ke3 f5 Kf4 h5 Ke5 b3 a4 b4 d4 h4 d5+ Kb6 g6 c5 d6 c3 d7 h3 Ke6 g2 g7 f4 e5 b2 Qd6+ Nc6 Be2 f3 Bf1 c2 Qd4 b3 Qd6 f2 Ne2 g1Q Nd4 c4 Na3 b1N Qe7 c3 Nf5 g3 Qh4 b2 Nb5 g2 Ne7 Na5 Nd6 Bb7 Bd3 f1B Ra2 Nf6 g8R Nb3 Rg7 Nd5 Ng8 Qc8 Rf7 Bg7 Bg5 Qe3 Qf2 c1B Rg1 Bc6 Nb7 Rh4 Kd6 c2 e6 Rd4 e7 Nbc3 e8R b1Q Ree7 Qf4+ Ke6 Qf5+ Kd6 Bb2 d8B+ Ka7 a5 Nc1 a6 Bh8 Bc7 Ba4 Bb8+ Kb6 a7 Bb3 a8B Be2 Rf1 g1Q Re1 Bf3 R1e5 Qe4 Ref5 Bh1 Rfe5 Qc4 Kd7 Qg6 Kd8 Qcc6 Ref5 Qce6 Bd6 Qg4 Re5 Q4f5 Bb4 N1e2 Ba3 Qg1 Rc7 Nc1 Rc5 Qc6 Re8 Qce6 Ree7
R1R5/2n1pp2/4pbBk/p5b1/Br1pRr2/B4N2/1nqR1Qn1/b2B2NK b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 hxg4 e5 b5 e6 bxa4 f3 g5 Bc4 g3 Be3 g2 Bf1 g4 Bc1 g3 Nd2 dxe6 Nb1 Bb7 Qe2 Be4 Qd3 Bf5 Qd1 Bg4 fxg4 Bg7 Ba6 Bh6 Bf1 Bf8 h4 a5 b4 a3 c4 a2 g5 Ra6 b5 Ra7 h5 Rb7 b6 Rd7 c5 Rc7 c6 Qd7 g6 Ra7 g7 Rb7 c7 Qa4 c8B Na6 h6 Rh7 Ba3 Nc5 Qd2 Qc2 Rh2 Na4 Be2 Nf6 g8B Nd5 Bd1 Nc7 Qf2 Nb2 Nd2 Bg7 Bd7+ Kf8 Ba4 Bf6 Ndf3 Rb8 Rb1 a1B b7 Rg7 h7 Rg4 h8R Kg7 Rc1 Rf4 R8h4 Kg6 Bh7+ Kg7 Ne2 g1N Bg6 Nh3 Neg1 g2 Rg4 Ra8 b8R Kh6 Re8 Rb8 Rc8 Rb4 Ra8 Rf5 Re4 Rf4 Ne2 g1B Kf1 Rh4 Kg2 Nf4+ Kh1 Ng2 Qe1 Be3 Neg1 Beg5 Qf2 Qe2 Nh3 Rf4 Nhg1+ Nh4 Rc6 Qc2 Rg2 Na6 Rcc8 Nc7 Rg4 Ng2 Re2 Rf5 Rge4 Rf4 Rd2
2N5/2B1k1qb/2qB1b2/R1r2BRB/2Qqqbrr/5NnR/qq3R2/q3n1K1 b - - 0 1 illegal: No possible last move
1b2qN1r/1rr1r1n1/2N4N/1r1k2K1/2q3BQ/BRRBN3/3n1rn1/1Bbb3r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 g5 a4 b5 h4 f5 a5 g3+ Kf3 d3 a6 g2 h5 b3 h6 g4+ Kf2 b4 a7 g3+ Kf3 b2 h7 b3 Ra4 d2 Rh3 Na6 Rb4 Nh6 Qe2 d1R Rb5 Nc5 Ra5 Qe8 Nd2 b1R Ba3 b2 Rh5 Re1 Nh3 g1R Ng5 g2 Qf2 Rh1 Qh4 g1B Bb4 Be3 Nb3 Bc1 Kg2 f3+ Kg3 f2 Bd3 f1R Ra3 Rf2 e5+ Kc6 e6 d5 e7 d4 Nd2 Nb3 c5 Kd5 Nf1 Nd2 c6 Rb8 a8N Rb7 Rb3 Rc7 Ba3 Bg7 Ne6 Be5+ Qf4 Ba6 Nd8 Bc4 Rc3 Bb3 Rh3 Bd1 Kh4 Bd6 Qg4 f4 Kg5 f3 Qh4 Nf5 Rb3 Ng7 Nb6+ Ke5 Nd7+ Kd5 Nf8 Be5 Be2 d3 Rg3 Bd4 Rc3 Ba7 Rb3 Bb8 Rc3 Rb7 c7 Ra1 c8B b1R Rh3 R1b5 Bg4 Rab1 Nc6 Rc7 Ng3 Rbb7 Nf5 R1b5 Bf1 Qd7 e8B Re7 Bg6 Qe8 Ng3 Rg2 Rb3 f2 Nf5 Rgh2 Bfe2 f1Q Rf3 Rf2 Rh3 Nb1+ Re3 d2 Bd3 Bc2 Rg3 d1N+ Re3 Nd2 Rg3 Rg8 h8N Ne3 Nf7 Ng2 N7h6 Bd1 Bb1 Rh8 Rgc3 Qc4 Bd3 Rb4 Ne3+ Kc5 Nf1 Kd5 Bb1 R4b6 Bgd3 Rb5 Ne3+
bK1R2r1/3Rq1bN/1B1N3n/rR1n1Rqq/qqNQBN2/1k5b/p2n4/3r4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 g4 a5 b4 f5 g5 d5 c3 h5 g6 f3 b5 h3 g7 h4 b6 d4 b7 f2 Ra2 a3 Qh5 f4 Qg4 h2 Bh3 f1N Rg2 a2 Qg3 a1Q Bd2 f3 Na3+ Kb3 c4 a4 c5 f2 c6 Nh6 g8N Bg7+ Nf6 Nd7+ Kd6 Rg8 c7 Qc3 e5 Ra5 Nc4 a3 e6 a2 Nh7 Qg5 b8R+ Nb6 Bf5 h3 Be3 d2 e7 d1Q e8R d3 Qf4 d2 Ne2 Qb4+ Kc6 Qc2 Be4 d1R Rd8 Nd5 Bb6 Nd2 Rf1 h1Q Qf6 h2 Nf4 Bd7+ Kb7 Bh3 c8N Qe7+ Rd7 Qc3 Qe5 Qcb4 N8d6 Qa4 Rd8 Qb4 Re1 f1Q Rf2 Qfg2 Kb8 Q2g4 Qf6 Qhf3 Qd4 h1B Nd3 Qff7 Rf5 Q4h5 Nf4 Qfe8 Rb7 Qea4 Rd7 Bf3 Rf1 Nc7 Rb5 Bfg2 Bg6 Ba8 Be4 Nd5 Rg1 Qf5 Rg5 Qfg6 Re5 Qgg5 Rf5
4B2r/3RprR1/1Rk2q2/1b2n1b1/b3q3/B2nqqN1/2r1NQqR/NK4Nn b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 b5 c4 h5 Kc2 d5 a4 Kd7 f4 d3+ Kb2 h3 g4 d4 a5 b3 f5 d2 c5 d3 f6 b4 f7 e3 a6 e2 a7 e1Q g5 h2 g6 h4 g7 h3 Ra4 Na6 Ka1 b2+ Ka2 b3+ Ka3 Qe3 Qh5 d1Q Qe5 d2 Qd4+ Kc6 Nc3 b1R Nce2 b2+ Ka2 Qb6 Rb4 Nh6 g8R Bd7 Rg7 Rc8 a8R Ng4 Ra7 Ne5 Rb5 Be8 Rd7 Qc2 Qf4 d1B Qf2 Qce4 Bg2 Ba4 Bf3 Rc7 Bh5 Qg2 Rb3 Qb4 Bg6 Qbf4 Rb8 Qf6 Rb3 Bb5 Rb4 Kb7 c6+ Kb6 Rb3 Nc5 Rb4 Rc8 c7 Kc6 Rb3 Ncd3 Rb4 Rb8 c8N Rb7 Nd6 Rc7 Nf5 Ba4 Bd2 Rf1 Bc1 Rc8 Nfg3 b1Q+ Ka3 Rc7 Rb5 Qb4+ Ka2 Qbe4 Ba3 Qgf3 Qe1 Qg2 Kb1 Rf5 Qf2 Rf3 Rh7 Bh6 f8N Bg5 Ne6 Rf4 Nc5 Rc8 Nf3 Rf5 Rg1 h1Q Nb3 h2 Na1 Rc7 Rg7 Rf4 Re1 Qhf1 Rb3 h1N Nfg1 Qgf3 Rd1 Q1g2 Rb5 Qe6 Rb4 Rf7 Rd2 Qef6 Rdb2 Qef5 Rh4 Q5e4 Rh2 Rff8 Bh5 Rb7 Rb3 Bf7 Nc1 Bc4 Be8 Rf7 Kc2 Rb5 Nce2 Rc5 Kb1 Ba6 Ka2 Rc2+ Kb1 Bc4 Rb8 Bcb5 Rb6+
R3q2b/2Npb3/2N1Nqq1/1Kn1Qr1k/RR3Bn1/rBqRN3/1rb1q3/6n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 Kd3 b5 a4 f5 c4 Kf7 h4 Kg6 e4 g3 a5 g2 c5 g4 a6 f3 a7 f4 c6 g3 c7 b3 e5 f2 e6 f3 e7 b2 e8R b4 Kc4 b3 Qc2+ d3 Ne2 g1B Re7 g2 Re4 d2 Kb5 d1Q Ng3 Nh6 Rb4+ Qd3+ Qc4 Bb7 c8N Qe8 Rh2 Na6 Be3 Be4 Nc3 b1R Nce2 b2 Nf5 Nc5 Raa4 Ng4 Bf4 Qc3 Rh3 Bc2 Qd4 Be7 Qe5 Kh5 Ned4 Rf8 Ne3+ Rf5 Bc4 f1Q Ne6 f2 Rg3 Qd1 Bb3 Bh2 Rf3 g1N Rh3 Bf8 Ne7 f1Q+ Rc4 Qff3 Nc6 Be7 Rcb4 Bg3 Rh2 Qd6 Rd2 Qe2+ Rd3 Bf2 Ng2 Bd4 Ne3 Rc8 a8N Rb8+ Nb6 Ra8 Nbd5 Ra7 Ndc7 Ra6 Qd5 Bh8 Qe5 Qdd4 Qd5 Qf6 Qe5 Kg6 Ra1 Ra3 h5+ Kf7 h6 Kg6 h7 Kh5 Ra2 Re1 Ra4 b1Q Rb2 Rf1 Bc4 Rf2 Rbb4 Qfg6 Bb3 Qbb2 Qd6 Qcf6 Qe5 Qc3 Bh6 Bg7 h8R Rh2 Rg8 Bh8 Bf4 Qf1 Bg5 Qa8 Qd5 Bd1 Rc8 Rb2 Qe5 Qe2 Rg8 Bc2 Bh6 Qaf8 Bf4 Q8f7 Rb8 Qe8 Rba8
2Q5/2BnNB2/1k2bR1K/RB1bR2B/q3bNq1/rn5R/b2pn1b1/2bb3r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 f5 Kf3 h5 a4 d5 e4 Kd7 c4 Kc6 g4 b5 a5 b3 a6 b4 g5 h3 g6 b2 a7 d3 g7 h2 e5 h4 e6 d2 c5 h3 e7 b3 e8R d4 Re7 d3 Re3 Nf6 g8R Na6 Ra2 Qa5 Re2 Bh6 Re1 Nd7 Rg7 Qa4 Nc3 b1B Nb5 b2 Qc2 d1B+ Kf2 f3 Kg3 f2 Rf7 f4+ Kh4 f3+ Kh5 Kb7 c6+ Kb6 c7 Nac5 Na3 Nb3 Bf4 Rh7 Be2 f1N Nb5 f2 Nd6 Ng3+ Kg6 f1B Bh5 Bg5 Nf5 Ne2 Ne7 Bg2 Ra1 Ba2 Rf6+ Bc6 Bg3 b1Q Qc4 Bc1 Qg4 Ned4 Ne2 d2+ Kg5 Qd3 Nf4 Qdc4 Re5 Ne2 Bf7 Rh4 Bh5 Qe6 Kh6 Bg2 Qg8 Bcb7 c8B Bbd5 Ba6 Bc4 Re1 h1B Bb5 h2 Qc8 Be4 Rf1 Bhg2 Rf3 h1B Bh2 Bed5 Rh3 Bge4 Bg3 Bhg2 Bh2 Bc6 Bg3 Qg4 Bh2 Be6 Bg3 Rb8 a8B Bcd5 Bac6 Ra8 Bh2 Ndc5 Be8 Nd7 Bf7 Qc4 Rb1 Ra3 Rb2 Qa4 Rc2 Qa7 Rc4 Qa5 Ra4 Qb4 Ra5 Qa4 Rf3 Rh3 Bg3 Rh1 Bh2 Bf1 Rh3 Bfg2 Rg5 Bc6 Nfg6 Bcd5 Bc7+ Kc5 Re5 Beb1 Bb8+ Kb6 Nf4 Bbe4 Bc7+
3N4/b2brqqr/Q3B1q1/1R1Knb1b/2Nb1pR1/3bB1RR/2N1k3/2N2nb1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 h4 b5 c4 g5 e5 f5 e6 d5 a5 d3 h5 Kd4 c5 b3 a6 g3+ Kf3 d2 e7 g4+ Kg2 Ke3 e8R+ Qe7 h6 b2 c6 b4 h7 d4 c7 d3 a7 b3 Rh4 f3+ Kh1 f2 Kg2 f4 Be2 f1B+ Kh1 g2+ Kh2 Bg7 Ra3 Bd7 c8R Nf6 Rf8 Nc6 Rh5 Ne4 Rb5 Qf7 Rc5 Ne5 Rb5 Ng3 Rc3 Re8 a8N Re7 Nb6 Kf2 Qc2 d1Q Nc4 d2 Rg8 Ke1 Bf3 Bd3 Ne2 g1B+ Kg2 Ba7 Bd5 Nf1 Be6 Bf6 Rg7 g3 Rg4 Bf5 Qd3 Bg7 Kh3 g2 Kh4 g1B Kg5 Kf2 Qd6 Qc2 Qa6 d1B Rcg3 Qc3 Be3+ Ke1 Nc1 Bd3 Nbd2 b1B Rh3 b2 Ndb3 Bf5 Na1 Bbd3 Rhg3 B1e2 Nc2+ Kd1 Rab3 b1Q Ra3 Rc8 h8N Rc7 Rh4 Bh5 Rhg4 Nc6 Rab3 Bgd4 Ra3 Ne5 Rh3 Qg8+ Kf6 Rh7 Nf7 Qg6+ Ke7 Qa2 Kd6 Qab3 Na2 Ke2 Nd8 Qcb2 Rd5 Qb7 Rb5 Qb3 Rhg3 Qg2 Rh3 Qg3 Kd5 Qg7 Rgh4 Q3g6 Rg4 Bac5 Bf7 Qa4 Nd2 Rc6 Bf2 Re6 Rc3 Re7 Nc1+ Kd1 Bg8 Be2 Rcg3 Bed3 Be3 Ba7 Bf7 Bde6+ Kd6 Bd7+ Kc7 Qb3 Kb7 Qbe6 Nc4 Qef6 Be6 Qff7 Kc7 Bc3 Kd6 Bcd4 Na2 Ke2 Kd5 Qgf8 Nd2 Qh8 Nc4 Qhg7 Nc1+
nbRnq2r/2R3n1/4pn2/1b1bKnnR/1BN5/1n6/r2RNk2/NB3NqQ b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 f4 Kf5 a4 Kg4 a5 Kg3 a6 h5 c5 d5 f5 b5 c6 b3 a7 b2 f6 h3 c7 d3+ Ke3 h2 Kd4 d2 f7 e3 Bc4 b4 Ke5 h4 Bb5 e2 Na3 e1N Ra2 b1Q Qg4+ Kf2 g3 b3 Qe4 b2 g4 d1N g5 d4 g6 e6 g7 d3 Kf4 h3 Qc6 d2 Bd3 Nc3 Qd6 d1N Bh7 Nb5 Qe5 Ne3 Nf3 Bd7 c8N Qe8 Qh5 Nf6 g8N Nc6 Nd2 Nc7 Nge7 Nf3 Nf1 Nd8 Nd6 Nf5 Ng6 Ng7 Bd2 Bb5 Nc2 Ng5 Ke5 Qa1 Bc3 b1N Nc4 Nd2 Nf4 Nb3 Ne2 Ba3 f8R Be7 Rg1 h1N Rf7 Ng3 Rh1 h2 Bg6 Qe1 Bb4 N3f5 Na1 Qd1 Rd2 Qc1 Rg1 h1B Qh7 Bg2 Rh1 Bd5 Rh5 Qb1 Nfg3 Qg1 Nf1 Rc8 Qh6 Na8 Qh7 Bc5 Rc7 Rb8 Qh6 Rb6 Qh7 Ra6 Qh6 Ra2 Qh7 Nb6 a8R Be7 Rac8 Na8 Qh6 Bc5 Bh7 Ba7 Bg6 Bb8 Bh7 Ne7 Bb1 Nef5 Qh7 Ne3 Qe4 Nef5 Qh1
r1b2q2/1q2rbN1/pb1R3N/1rb1R3/NR2N3/1nK1B3/q1RQ1b1n/5Bkb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 h4 Kd6 b4 Ke5 c4 Ke4 b5 f5 h5 g5 c5 d5 b6 g3 e3 g2 b7 a3 h6 a6 c6 g4 c7 f3 h7 f4 Bc4 a2 Bb2 f2 Rh4 f1R Rh2 d3 Bb3 d4 Rh4 g3 Bc3 Qd7 Ba5 Bc5 Qc2 Nh6 Rg4 Re8 h8N Nc6 b8N Re7 Rg5 f3 Ba4 f2 Bb6 Ng4 Nf3 g1B Nh4 g2 Bb5 Nh2 Nf7 Na5 Nf5 Kf3 Nc3 Rb1 e4 f1Q e5 Bf2 e6 g1B Na4 Qc6 Rg2 Qb7 Rg4 Rb3 Rd1 a1Q Qb2 Qa2 Nd7 Rb4 Rf4+ Kg2 Ng7 Rb3 Bc4 Rb5 Nf6 Kh1 Nh6 Kg2 Kc1 d2+ Kc2 d3+ Kc3 Nb3 Ne4 Kh1 Ba7 Bb6 Rg4 Bfc5 Rf4 Bgf2 Rh4 Kg1 Qc1 Bd7 c8R Be8 Qc2 Bd7 Rc6 Bc8 Rc1 d1B Qd2 Be2 Rc2 Bf3 Rd6 Bh1 Rf4 Bg3 Rg4 Qf8 Rf4 Bgf2 Rh4 Rc7 e7 Rd7 e8R Re7 Qf4 d2 Bf1 d1B Qd2 Bh5 Rf4 Rc7 Re7 Bf7 Re5 Re7 Rh4 Bc7 Bb6 Ba3 Be3 Bb6 Ng3 Bac5 Rb4 Bc7 Ne4 Ba5 Bd3 Bab6 Bf1
3K1QB1/3B1qR1/r4r1N/1q2b1N1/1N1q2n1/1nnN1pR1/k2Bbq1n/3nq2B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 g4 d5+ Ke5 b5 a4 f5 e4+ d3 c3 h5 g5 d4 a5 h3 g6 b3 a6 h4 g7 f3 a7 f4 Ra2 b4 Qe2 h2 Bh3 f2 Qd1 f1N Qg4 f3 Re2 d2 Qf4 d1Q Bd7 h3 Ke6 d3 Rg2 b2 e5+ Kb3 c4 d2 c5 Ba6 c6 Bd6 c7 Qe1 c8B d1N Na3 b1N Nc4 Qf2 Qf8 Nh6 g8N Nbc3 Nb2 Nc6 Nd3 Ka2 Bd2 b3 Rg3 Ng4 Nh6 b2 Kf7 b1Q e6 Qh4 Ke8 Nd4 e7 Qb5 Kd8 Be5 Be6+ Nb3 Bg8 Qh5 e8B Qf7 Bd7 Qd4 Ne2 Rh7 Rhg1 h1Q Nef4 h2 Ne6 Qg2 Ng5 Qgf2 R1g2 h1Q Rg1 Rb8 a8N Nfh2 Nb6 Ra8 Nd5 Rg7 R1g2 Qhe1 Rg1 Rg6 R1g2 Nf6 Bh3 Ra7 Bcd7 Nfg4 Rg1 Rf6 Bg2 Qbb4 Bh1 Bb5 Nc5 Be2 Nd3 Qb5 R1g2 Raa6 N5b4+ Ka1 Ne6 Nge3 Rg7 Neg4 Rg3 Kb1 Ng5 Ka1 Nc2+ Ka2 Ncb4+
n1NrqrBB/7q/2k2N1n/7b/3b2qb/2R1R1n1/4pRn1/KBQnRBq1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 g4 b5 f4 d5 a4 Kd7 c4 e5 Kc2 d3+ Kb2 d4 c5 b3 g5 d2 g6 h3 a5 h4 g7 h2 a6 b4 f5 d3 a7 e3 f6 e4 f7 e2 Qc2 e1B Bh3+ Kc6 Ra2 d1N+ Ka1 e3 Nf3 d2 Rb2 e2 Bg4 h3 Ng1 Bh4 Bf5 Ne3 Na3 d1N Nb5 Ng2 Nf3 Qe8 Re1 h1Q Nh2 Nd7 Ng4 h2 Nd6 Nh6 g8B Nb6 Nf6 Bg7 f8R Qg1 Bc4 h1N Bg6 Bf5 Nc8 Bg4 Qc3 Rb8 Bb1 Ng3 a8R Rg8 Rc2 Bh5 Ra3 Na8 Bb2 Qd4 Qd2 Qg4 Qc1 Rh8 Rf7 Rf8 Rc3 Bh8 Nd5 Bd4 Rf2 Qeg6 Nf6 Qe8 Nd6 Rd8 Re3 Kc7 c6 Kb6 c7 Kc6 Bc3 b2+ Ka2 Ba7 c8B Bb6 Be5 Bd4 Rac3 b3+ Ka3 Qe4 Bh3 Qf3 Nc8 Qg4 Bc2 b1Q B2d3 Nf4 Bf1 b2 Bg6 Qbf5 Ka2 Ng2 Bh7 Qfd7 Bb1 Qde7 Nd7 Q7f7 Bh8 Qh7 Nf6 Qge4 Bbd3 Ba7 Qc2 Nf4 Bh3 Bd4 Rh1 Qf3 Rhf1 Qg4 Qb1 Qhe4 Qa1 Qg2 Qc1 Qg1 Re1 Nb6 Bf1 b1Q+ Ka3 Qc2 Bh7 Qd3 Ka2 Na8 Ka1 Ng2 Bf5 Qde4 Bg6 Q4e7 Bb1 Qh7 Bg8+
bbqnbB2/3b1k2/7q/2Nr2RB/2Q1BRqb/1p1n2nN/2R1rRK1/B4n2 b - - 0 1 illegal: No possible last move
Nr1b2bn/1n1q1q1B/1n3p2/RBR2RB1/n3kQ2/4r1R1/1qn2b1q/2B1NK2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 h4 Ke6 a4 Ke5 c4 g5 h5 b5 c5 d5 c6 f3 a5 d3 h6 d4 h7 d2+ Kf2 d3 a6 b3 a7 g3+ Ke3 b4 c7 g4 Rh2 f2 Rg2 b2 Nc3 b1Q Bb2 b3 Nh3 Be6 c8B Qd7 Ng1 Be7 Qe1 d1N+ Kd2 Nc6 Nh3 Rb8 a8R Na5 Bc1 b2 Ra2 Ne3 Nb5 Nd5 Ra4 Nb6 Nd4 Bd8 Nc2 Nb7 Kd1 d2 Ke2 d1N Ng5 Ne3 Rc4 Nh6 Qb4 Re8 Ne1 Nc2 h8B+ f6 Bg7 Bg8 Ne6 Nf7 Bgh6 Nh8 Nc7 Qa1 Rc3 b1N Bhg5 Qb2 Ra4 Qf7 Bf5 Re6 Rg1 g2 Bh7 g3 Na8 Re7 Ra1 Re6 Qc4 Qd7 Qc7+ Kd4 Rc5 Nc3+ Kd2 Nca4 Ke2 Re8 e5 Qf7 e6 Qd7 Rh1 g1Q e7 g2 Rh3 Qh2 Rg3 g1B Rf5 Ke4 Ra2 Nac5 Ra5 Nca4 Rac5 Rf8 Ra5 Rf7 e8R+ Re7 Bh3 Re5 Re6 Qf7 Rc6 Re7 Rcc5 f1Q+ Kd1 Qfb5 Bf1 Qc6 Bb5 Bf2 Ke2 Qd7 Kf1 Kd4 Bc4 Re3 Bb5 Ke4 Qf4#
2r2Rr1/K1bR1r2/BN1npBQ1/4n1rn/R4Bn1/kNn5/B2Rb1qn/2n5 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 g4 Kd7 c4 Kc6 a4 Kc5 f4 b5 a5 h5 f5 h3 a6 h2 a7 e3+ Kd3 e6 f6 e2 g5 e1N+ Kd2 d3 Ke3 d2 g6 d4+ Ke4 b3 f7 Kb4 g7 d3 c5 b2 c6 h4 c7 h3 Qg4 d1N Qf4 d2 Qg3 Nd7 Kd4 Nh6 g8B Nf2 Ra3 d1N Qd3 Nhg4 Ra2 Qg5 Qd2+ Nc3 Ra3 Ned3 Bh7 N7e5 Qf4 Ba6 c8R Rg8 Ra2 Nfe4 Na3 b1N Bg6 Nbd2 Bf5 Bd6 Qg3 Bc7 f8B+ Nd6 Nf3 Kb3 Be7 b4 Re8 Rc8 a8R Bc4 Rg1 h1R Bf6 h2 Ra4 Qg7 Be2 Nf1 Bf4 Nc1 Kc5 Qg6 Rg2 Rg1 Bb1 h1N Rd2 Nfh2 Rf8 Qg7 Bf1 Be2 Nc4 Qg6 Rf2 Qc2 Qg2 Ng3 Nb6 Nh5 Ba2+ Kb2 Nd4 b3 Rf7 Rg5 Rd7 Rgg8 Rc4 Ka3 Qg3 b2 Nb3 b1R Qd3 Ne3 Qg6 Rg5 Rcd4 N3g4 Rb4 Bd1 Ba6 Be2 Rbd4 Rb2 Rf3 Qe4 Rf1 Rc2 Rb4 Qg2 Ra4+ Kb2 Rf3 Rcf8 Rf2 Rf7 Bg7 Bd8 Bg3 Re7 Rf8 Rf7 Nc8 Ba5 Bf4 Ncb5+ Rc4 Ka3 Bf6 Bc3 Kb6 Bb4 Bb7 Ba5+ Ka6 Bd8 Nb6 Rc3 Re4 Rc8 Rb4 Nc3+ Ka7 Bc7 Ba6 Bf3 Rc4 Be2 Ra4+
4b2B/nb4Q1/b1nb3R/3kN1p1/K2R1rNB/1r1Br2r/2R1q1RB/1b2b2q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 f4 d5 a4 b5 c4 g5 Kc2 d3+ Kb3 d4 a5 d2 h5 g3 c5 d3 f5+ Kd5 h6 e5 a6 g2 c6 e3 a7 e2 c7 e1B h7 e4 f6 e3 f7 e2 Rh3 Ba6 c8R Ne7 Ra5 Nec6 Ra2 Qe7 Nf3 g1Q Ba3 Qh1 Qc1 d1B+ Qc2 d2 Rh5 Qe5 Rh6 Bd6 f8B Qe6 Kb2 b3 Nh2 b4 Qc3 Bc2 Bg7 d1B Nd2 Bg6 Bd4 Be8 Ng4 Bc2 Bb6 Be4 Nf3 Rf8 h8B Rf4 Nfe5 Bg2 Kb1 b2 Kc2 b1R Bf2 Rb3 Bh4 Qe7 Qa1 Rh3 Kb2 b3 Bb4 Be4 Ka3 b2+ Ka4 b1B Rd8 Bf3 Rc2 Bb5+ Ka3 Na5 Rdc8 Ke4 Bc5 Na6 Nd7 Bg3 Rb8 e1R Rf2 Nc7 Rc8 Rb8 a8R Bbe2 Qg7 Nb5+ Kb4 Bc4 Ra6 Na7+ Ka3 Re2 Rg2 Be1 Rcc6 Rb4 Bg1 Bb5 Rab6 Ba6 Rc2 Rb3+ Ka4 Qe6 Rb5 Qc4+ Rb4 Ree3 Rf6 Kd4 Bh2 Bfb7 Rh6+ Kd5 Be2 N5c6 Nde5 Qd3 Re4 Qd1 Bd3 Qe2 Rd4+
2BB1r2/R1NN1r1n/nK2n1bB/pN1B4/3rN2k/qr2R1b1/3r1Qn1/3q3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kb5 a5 b4 h5 e4 d5 c4 f5 g4 a3 c5 d3 c6 h3 c7 h2 e5 h4 e6 d2 e7 h3 e8N a2 Nf6 f3 Qe1 f4 Na3 d1R Ne8 d4 Qc3 d3 Bb2 f2 Qd2 Na6 Kc6 Nf6 b5 Nh7 b6 Bd6 b7 Qe7 b8B Bf5 c8N Kh4 g5 f3 g6 Bg3 g7 Bg6 Nb1 Rf8 g8B Qa3 Bc7 Rb8 Na7 Rb3 Bc1 Rf7 Qe2 d2 Nc3 Rf8 Bg2 f1N Qf2 Ne3 Bd5 Rf7 Rb1 a1N Nab5 Nac2 Kb6 Nd4 Ne4 Ne6 Bf1 Ng2 Bd8+ Kg4 Nc7 Kh5 Qc5 f2 Nf3 Kg4 Bd3 f1R Qf2 Kh5 Rg1 h1Q Ne5 h2 Nd7 Kg4 Rb2 Kh3 Rc2 Rf8 Rc3 Rf7 Ng5+ Kh4 Bf5 Rf8 Re3 Rf7 Bh3 Rf8 Qe1 R1f7 Rf1 Qg1 Qf2 h1R Bg4 Re1 Bf5 d1R Bg4 Rd4 Ne4+ Neg5 Bd2 Re2 Rc1 Qd1 Rc6 Qb2 Re6 Qa3 Re7 Ne6 Ne5 Rf5 Rc3 Rb2 Na8 Rbb4 Bh6 Nec5 Re3 R5f7 Bc8 Red2 Rc7+ Kh5 Rd7 Rb3 Ra7 Ne6 Nd7 Kg4 Nc7 Kh5 Ng5 Kh4 Ne4+
1BNRKbN1/2RBB1k1/1qq3B1/1nn3rn/6b1/npqq3R/R2br3/5Qb1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 Kf7 a4 g5 c4 b5 c5 b3 e5 d3 c6 b4 e6+ Kg7 e7 b2 e8R f3 Ke3 b3 Kd4 g3 Ke5 f2 a5 g2 a6 d4 h5 f4 a7 g4 c7 d2 Ne2 g1B Ra2 f3 Qe1 d1N Qd2 g3 Qe3 d3 Qf4 d2 Bh3 f1Q Nbc3 b1N Bd7 g2 Ke6 f2 Rh3 Na6 Ne4 Na3 N2c3 Qe1 Na4 f1Q Nb6 Qb5 Qf1 Be3 Nf6 g1B Bb2 Qg3 Be5 Nc3 Bf4 Rb8 a8B d1Q Be4 Qdd3 Bg6 Bd2 Bd6 Rh7 Bc5 Qa4 Be7 Ncb5 h6+ Kh8 Be4 Rg7 h7 Rg5 Kf7 Nc5 Bg6 Qge3 Bg4 Q8d4 Rd8 Q4c3 Ke8 Kg7 B4f5 Be6 c8R Qa8 Rc7 Qc6+ Rd7 Ra8 Nc8 Ra4 Bg4 Re4 B4f5 Qed4 Bg4 Re2 B4f5 Qb6 Rc7 Q4c4 Bg4 Bd5 Bd7 Be6 Qe1 Bg4 Qf1 Nh6 Ng8 Nf5 Bh5 Ng3 h8B+ Kh7 Bf7+ Nh5 Be5 Qcd5 Bg3 Kg7 Bg6 Qh1 Rb7 Qg2 Bb8 Qgc6 Rc7
4K2n/BRN2R2/r1N4R/4Bnr1/4npq1/B1R3b1/2Q1B1pq/k1nnn1nb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 a4 Kc6 d4 Kd5 h4 c5 h5 f5 a5 b5 e3 g5 a6 b3 a7 b2 h6 f3 Kg3 b4 h7 b3 Qd2 c3 Qe2 c2 Qa6 f2 Qb7+ Nc6 Bg2+ Kc4 e4 f1N+ Kf2 g3+ Kf3 g4+ Kf4 Nge7 Kg5 Ne5 Kf6 Nf7 e5 Qc7 d5 Ne3 e6 Nd1 d6 Rg8 h8B Rg5 Qc6 Bb7 Bh3 g2 d7 g3 Na3+ Kc3 d8B b1Q Qa4 b2 Ra2 c4 Nf3 g1N Ne5 Qa1 Nc6 b1N Bf1 Nd2 Bg7 Nh8 Rb2 Qc8 Rb6 Qb2 Be2 f4 Rh5 Nf5 Rh6 Bc5 e7 Bf2 e8R Be1 Rf8 Ne4+ Ke5 Qa2 Rf7 Qb2 Be3 c1N Be7 Qa2 Nb5+ Kb2 Bb4 c3 Ba3+ Ka1 Nc7 c2 Rb3 Qb2+ Rc3 Nd3+ Kd5 c1N Qc2 Bf2 Be5 Ne1 B3d4 Qg8 Ke6 Qg6+ Kd7 Qh5 Bdc5 Qh2 Na5 Qb6 Be3 Qg6 Nc6 Qgh5 Bec5 Qg4 Be3 Rag8 a8R R8g6 Ba7 Re6 Nd4 Ra6 Rb8 Nf6+ Kd8 Bh1 Nc6 g2 Rb7 Ne4 Kd7 Bg3 Ke8
1B5Q/B2nrbnq/2BNq1n1/bK6/1N1B4/1r1Rp1b1/2p2NbN/kb2b1R1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 f4 Ke6 g4 Kd5 a4 Kd4 f5 c5 a5 e5 d3 h5 g5 b5 g6 c3 f6 b3 g7 b2 f7 c4 a6 e3 a7 e4 Ra3 h3 Qb3 h2 Bg2 b4 Ra5 h4 Rf5 h3 Qa2 c2 Rc5 b3 Rf5 c3 Rf4 Qd7 Rf3 Ne7 g8N Rh7 Nd2 b1B Nf1 b2 Nh6 Ng6 Qa1 Bb4 f8B Ba5 Bd6 Re7 Nf7 Qe6 Bf4 Nd7 Nd6 Rb8 a8N Rb7 Nc7 Rb3 Nd5 Ba6 Bd2 c1B Nb4 Bc4 Be1 c2 Bf2 Kc3 Rg3 Bd5 d4 Ba2 Bf3 Ba8 d5 Bd2 Bg2 Be1 Rf3 Ra3 B4g3 Kb3 Be5 b1B Bd4 Bb7 Bg3 Ba8 Bge5 Bg3 Ba7 Bb7 Bed4 Bc6 Bb8 Bb7 Bda7 Ba8 Qf6 Bb7 Qh4 Kb2 Qh8+ Rc3 Nb5 Ka1 d6 Nde5 d7 Rb3 d8B Bd5 Rf6 Nd7 Nd6 Ba8 Bdb6 Bb7 Nf3 Bc6 Rg1 h1N Ne5 h2 Ng4 Bb7 Nf2 Ba8 Ke1 e2 Kd2 e1B+ Ke2 e3 Bc6 Bb7 Ba4 Bg2 Bc6 Bc3 Kd3 Be1+ Kd4 Bf4 Bb7 Ng3 Bc6 h1Q Nh2 Nh5 Rf8 Ng7 Rd8 Bg3 Bc5 Qf6+ Kc4 Qf7+ Kb5 Qe6 Nf1 Qhh3 Nh2 Qh7 Bd4+ Rb2 Rc8 Qe4 Bb7 Bf7 Rc3 Qe6 Bc6 Rb3 Rd3+
1N1Rr2r/1r3N2/2qnp2R/4r3/b3NK2/1qrBnR2/1RQ1Npk1/b1B2n1n b - - 0 1 illegal: No proof kernel
2K2bB1/rBbN2N1/1q5n/q3q1Rb/4p1QB/1R2br2/1nNBpk2/2rq3N b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kd5 f4 e5 a5 b5 a6 g5 f5 e3+ Kd3 g3 h5 b3 a7 e2 f6 e4+ Kd2 d3 Ke3 b4 h6 d2 f7 b2 h7 g4 Kf4 Kd4 Kf5 Ke3 c4 g2 c5 g3 c6 b3 c7 Kf2 Ra3 Nc6 Rh5 Nb4 Nf3 g1B Ne1 g2 Rg5 Bh2 Nc2 g1B Bh3 Nd3 Bg4 Bf4 Bh5 Bgh2 Qh1 d1Q Bd2 Bhg3 Qh3 Be3 Qg4 Qe8 Bg6 Nh6+ Kf6 Rg8 h8B d5 Bh7 d4 Bg7 Be6 c8B Bc7 Bb7 Qe1 Bh8 Rg7 Bg8 Rd8 a8N Bf5 Qh3 Bg4 Nb6 Bh5 Nd7 Ra8 Qe6 Ra7 Qg4 Qb8 Ke6 Rh7 Nc3 b1Q Nb5 Nb2 Bf6 d3 Nbd4 Qa1 Nf5 Qd8 Ba5 d2 Ng3 d1Q Bd2 Qb8 Ra4 Qg1 Rb4 Qa5 Rbb5 Bb4 f8N Rf7 Bd8 Ba3 Rb4 Rf3 Ke7 Qh2 Ne6 Qhg1 Ng7 Qh2 Ke6 Qhg1 Rbb5 Bf8 Bf6 Qe8+ Kd5 Qe5+ Kc6 Nd3 Be7 b2 Rb3 b1R Nc5 Rf6+ Kd7 Nb2 Kc8 Rf3 Nd7 Ra1 Rg6 Rc1 Bh4 Qb6 Rg5 Qge1 Ba5 Q1c3 Bb4 Qcc5 Bd2 Qca5 Nh1+
1b1b2NK/1N1b1q1B/rBB5/N1p4R/qq1rnbqQ/3p3n/2kNnB2/2R5 b - - 0 1 illegal: No proof kernel
2N1b2k/r2n1r2/B4p1q/Q1nN2B1/q3R3/n2r1BNq/RKNq2np/B3b3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 e4 b5 d4 h5 Kd2 b3 Kc3 f3 g4 b2 d5 f2 d6 h3 a5 h2 g5 h4 e5 b4+ Kc2 h3 a6 c3 e6 c4 a7 Bd7 e7 Na6 g6 Nf6 g7 Nc5 g8N Qa5 Bf4 Rh7 Qd5 b3+ Kd1 c2+ Ke2 c1Q Qh5 c3 Bh6 c2 Bg5 Qa4 Nc3 b1N Ra3 b2 Ra2 Na3 Nf3 b1R Nh6 Rb3 Nd5 Rd3 Nd4 Rg7 Rg1 h1Q Nhf5 h2 Rg4 Qg2 Rf4 Qh3 Ng3 Bc6 Rh4 Nfd7 Re4 Qb2 Bf6 c1Q+ Nc2 Qh6 Bd4 Qbc1 Ba1 Rh7 Qf5 Bg7 Qg5 Bc3 Qd2 Qb2 Kd1 Bb4 Be2 f1N Bf3 Qd4 Kc1 Ne3 Qc3 Ng2+ Kb2 Qde3 Qe5 Qd2 Be2 Rb8 a8B Rb7 Bf3 Ra7 Bb7 Qe2 Ba6 Be1 Qc3 Qed2 Qb4 Nf8 Qa5 f6 d7+ Kf7 e8N Kg8 d8B Rhf7 Nd6 Kg7 Bc7 Kh8 Nc8 Be8 Bf4 Nfd7 Bg5
3RN2B/Rqb1k2n/1Rn1pb2/pNrB3q/3b4/rn2QR2/q1B3n1/1b1KB3 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 h5 f4 d5 c4 h3 b4 a3 f5 h4 b5 a2 b6 e3 f6 h2 c5 h3 c6 d3 g5 d2+ Ke2 d4 b7 d3+ Kf3 e2 g6 e1B c7 Bg3 g7 Rh5 Qb3 d1Q+ Ke3 d2 Bb5+ Nc6 b8B Rc5 Na3 Bf5 c8B e6 f7+ Ke7 Rb1 a1B Bb2 Qd5 Ba4 Bc7 Bb7 Qh5 Nf3 d1N+ Ke2 Ne3 Nb5 Nf6 g8R Ng2 Nd6 Nh7 Qe3 Bg7 f8R Bf6 Bc2 Qa2 Kd1 a6 Rg1 h1Q Ne8 h2 Be5 Bg6 Rb6 Bd4 Bg3 Bf5 Be1 Ra7 Ba4 Bb1 Bc2 a5 Rf1 Rc3 Rg5 Ra3 Rd5 Ra6 Rd8 Ra8 Ba7 Rc8 Bb8 Qg1 Rg8 h1N Rg5 Ng3 Rg7+ Kf8 Ba7 Nf5 Re7 Qgh1 Rf2 Nb8 Bd5 Nc6 Rf1 Bb2 Rg7 Nfd4 Rgd7 Nb3 Re7 Q5h4 Nd4 Qh5+ Rf3 Ba1 Red7 Bb2 Nb5 Bd4 Rd6 Ke7 Rb7 Bb2 Bd4 Bc3 Be5 Bd4 Ra7 Qf1 Nc3 Qa6 Nb5 Qb6 Qf2 Qb7 Qe3 Bg5 Bg7 Bgf6 Bh8 Ne5 Ke2 Bcb6 Bb4 Rc5 Be1 Bc7 Rb6 Nc6 Kd1
qn2RrRK/2kq1N1p/B1b3Br/b4qn1/2NRr3/5npr/4RB2/2q1BQ2 b - - 0 1 illegal: No proof kernel
NbN4N/4b2p/QKB4b/1b1pn1rr/3B3n/R1R1q2k/nn1B1qB1/2N1q3 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 g4 b5 c4 d3+ Ke3 d2 Kd4 b3 Kc5 b2 a4 e3 g5 Kf5 a5 e5+ Kd5 e4 g6 e2 a6 Kg4 f5 e3 g7 b4 f6 h3 f7 b3 c5 h2 c6 Qe8 a7 Nh6 g8N Nf5 c7 Bh6 Kc5 Nh4 f8B Nc6 Be7 Ne5 Ra3 Ba6 c8B Bb5 Qc2 e1B Nf3 d1N Nbd2 b1Q Ne4 e2 Bb7 b2 Ra6 Bg3 Qa4 e1B Kb6 Qc2 Bd2 b1N Bc5 Nb2 Bd4 Nc3 Nc5 Na2 Ne7 Rg8 Bg2 Rg5 Nd3 d5 Nc1 Rh5 Rg1 h1Q Ng5 Qf5 Qa3 Qf2 Nf7 Rc8 a8N Bh2 Bf3+ Kh3 Nh8 Rc3 Be4 Rg3 Nc8 Qe6+ Qd6 Rgg5 Bc6 Qhf3 Ra3 Q3e3 Rg4 Bg3 Rf4 Qe8 Rf3 Qe7 Ba5 Bb4 Qg6 Qee1 Rfc3 Qe6 Bf3 Be7 Qd3 Qg6 Qc4 Qd3 Qa4 Qde3 Bb4 Ng4 Qa6 Bb8 Bh1 Ne5 Bg2+ Kh2 Rd3 Kg3 Bd2 Kg4 Rdc3 Kg3 Bf3 Kh3 Bg2+
B2KQRqR/3prN2/1Rr2Rnb/pbN1NkBN/q3r3/3r2nq/8/2q4n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 a5 Kd5 h5 g4 h3 e4 a3 b4 f3 c4 d3 b5 h4 b6 d2 b7 f2 c5 h2 c6 a2 c7 h3 Bc4 f1R Qe2 d1R+ Nd2 Na6 b8R Bh6 Kd6 Rfe1 Nf3 Ne7 Rb6 Nc5 Ne5 Rh7 Bd5 Qg8 Nb3 Ba6 c8R Rd3 Rf8 Rc8 Rb1 a1Q g5+ Kg7 g6 Kf6 g7 Qa4 Qh5 Bb5 Bf4 Ree3 Rbf1 Ng6 Qe2 Rd4 Qh5 Red3 Rf3 Rc4 Rf2 Re8 Kc7+ Re6 Bb7 Rc6+ Kd8 Ke6 Bd2 f5 Bg5 f4 Ba8 f3 Rff1 f2 Qe2 Qh8 g8N Re7 Nf6 Qg8 Nh5 Rb4 Nf7 Rbd4 e5 Ne4 Nc5+ Kf5 e6 Ng3 Qe3 Re4 Ne5+ Rf7 Rd1 f1Q e7 Qf3 e8N Qf4 Rhf1 h1Q Rd2 Qhf3 Rh2 Qg2 Rhh1 h2 Bb7 Ne2 Rd1 Bg7 Ng4 Re5 Nhf6 Qff1 Rd2 Qc1 Ba8 Qf3 Rf1 h1N Rf2 Ree6 Rh2 Re5 Rh8 Bh6 Nh5 Qh3 Rc2 Neg3 Rf2+ Nf4 Nd6+ Kg6 Qd4 Re1 Qe5 Re4 Qe7 Rf6 Nf7 Rfe6 Qe8 Re7 Rd2 Kf5 Nge5 Ng6 Nc4 Kg4 Rf2 R4e6 Rf6 Re4 Re6 Kf5 Nce5 Qh4 Rd6 Qh3 Rf6+
bb2krn1/1p2rB2/R3pbK1/1N3BB1/nn1Q1R2/1q1R1NR1/bp6/rbB5 b - - 0 1 illegal: Other
5nqb/Rrr4B/2BB1RQ1/Nq1p2nN/1r1r1NB1/4Kb1p/p4nrN/3k4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 Kd6 c4 Ke5 e4 a5 g4 h5 g5 d5 c5 f5 b5 a3 g6 d3 g7 Kd4 e5 f3 e6 h3 b6 a4 b7 f2 c6 h4 c7 a2 e7 a3 e8N h2 Qe1 f4 Nc3 f3 Bb2 h3 Qe6 Ra7 Rc1 a1R Rd1 a2 Qf7 Rb1 Qe6 Rh7 Qg6 Bg4 c8B Nh6 g8B Rc7 Ng7 Nd7 b8N Rab7 Nh5 Nf7 Nf6 Ng5 Ba1 R1b4 Be2 f1R Rb1 f2 Nh5 Bg7 Bh7 Nf8 Bd7 Bf3 Bc6 Bh8 Rb2 Kc4 Ke3 Rc1 Bd1 f1Q Nce2 d2 Nef4 Kc3 Rc2+ Kb3 Be5 Qb5 Bd6 Ra1 Be2 d1R Rc3+ Kb2 Ra3 Kc1 Ra7 Rdd4 Bd1 Rab1 Be2 R1b2 Bd1 Bg4 Nf3 Rg2 Rf1 h1N Nh2 Bf3 Rf2 Be4 Bg4 Bf3 Na6 Kd1 Nc5 Qa8 Nb3 Qc8 Na5 Qe8+ Qe6 Qf7 Qg6 Qg8 Rc2 Nf2 Rc4 Rd2 Re4 Rdd4 Re6 Rf7 Rf6 Rg7 Nf1 Rgc7 Nh2
2BB2B1/3r1RbK/n2np1NN/4Rp1p/3N4/1n2B1n1/QN1nqb2/kbr1q3 b - - 0 1 illegal: No possible last move
1RK1R1B1/N3bqBR/1Nb2nB1/1R3Q2/qq2prp1/rn3rb1/1B1p4/5qk1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 Kd3 e4+ Kc2 e2 Kb3 e1B a5 d3 a6 d2 a7 g3 h5 g2 h6 d4 h7 d3 Na3 g4 Qf3 d1Q+ Nc2 d2 Rb1 Qf6 Bb2 Qf7+ Bc4 Na6 Nh3 Bd7 c8B Nf6 Qf2 Rg8 h8B g1R Bg7 Be7 Qf3 Rf8 Qf1 Qe8 Bg8 Bg3 Qf2 Qf1 Na3 Rg2 Qf3 Rf2 Rh2 Rb8 a8R Qf7+ Nc4 Rb7 Rb8 Ra7 Ng5 Ra8 Ne6 Bc6 Nb6 Nc5+ Kc2 b3+ Kc3 b4+ Kd4 Qb5 Rh7 Qa4 Bd7 Ra7 Be8 Ra8 Nc7 Ra5 Qe3 Rf3 Qf2 Ra7 Nb5 Ra8 Bc3 b2 Na7 b3+ Nc4 Kg6 f5+ Kg5 Qf1 Kf4 Rb5 Qe6 Bg6 Qf7 Rb8 Bh4 Rb5 Kg3 Ke5 Kh2 Nb6 Rf4 Rd1 b1Q Bb2 Qd3 Rb1 Qh3 Qf3 Bg3 Qf1 Bd8 Kd6 Be7+ Kc7 Rf3+ Be5 Rf4 Bc3 b2 Bd4 Nb3 Qf3 Nh5 f6 Qf1 Bc3 Kg1 Be5 Qfc4 f7 Nf6 Bc3 Rfb8 f8R Qf7 Be5 Rd8 Re8 Rd3 Rc1 b1Q Bb2 Re3 Rc4 Rc3 Rd4 Re3 Rdd8 Rc3 Rb8 Re3 Kc8 Rd3 Qe2 Rdf3 Ba3 Qb2 Qe1 Qc3 Bb2 Qc5 Qc1 Qcb4 Qc5+ Kg2 Bc3 Qa2 Qf5 Kg1 Bb2 Qaa3 Rc5 Qaa5 Nb5 Ra6 Na7 Qab5 Re5 Ra3 Rd5 Q5a4 Rb5
4nn2/B7/R2r1k2/3Nrr2/qppbR1Rb/1QBpq2B/1bB1b3/2Nq1R1K b - - 0 1 illegal: No proof kernel
2rnNN1q/1B1bn2R/r1N3q1/7p/rB1p2n1/3p3k/1K2NRBb/1bQB2r1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 a4 Kg4 e4+ f3 e5 h5 e6 d5 g3 b5 c5 f5 e7 d3+ Kb3 f4 e8N h3 a5 h2 c6 Ne7 a6 Bd7 c7 Nbc6 Ne2 f2 c8N f3 Bg2 f1N a7 f2 Nb6 Ne3 Na3 f1R Kb2 b3 Nac4 Rf6 Rf1 h1R Na5 Rg1 Rf2 b4 Qe1 d4 Bd2 Bh6 Ra3 Bf4 Qc1 Qb8 Ra4 Nd8 Nc6 Qe5 Ra1 Qf5 Ra6 Qg6 Be1 Rc8 a8B Re6 Ra7 Rh6 Bh1 Kh3 g4 Bh2 g5 Ng4 Bb7 Re5 Be4 Ra5 Bf3 Ra4 Bc3 Qf6 g6 Qh8 g7 Rg6 g8B Rd6 Kb1 b2 Bb3 Re6 Be1 Rf6 Bd1 Rh6 Qc3 Rg6 Qa3 Rh6 Ka2 b1B+ Kb2 b3 Bb4 Rg6 Nd5 Rh6 Ndf6 Rg6 Nh7 Rh6 Ne5 Rha6 Nc6 Bc2 Ka1 b2+ Ka2 Bb1+ Kb3 Bf4 Nf8 Bh2 Bg2+ Kh4 Bc3 Ng6 Rf7 Bf5 Na5 Bc2+ Ka2 Be6+ Bbd5 Bf5 Rae7 Be6 Rf5 Bd7 Rh7 Ne7 Bd2 Rb4 Qc3 b1Q+ Ka3 Rbc4 Bb7 Qb6 Rf2 Qg6 Kb2 Bb1 Qc1 Ra4 Bc3 Nh6 Bb4 Ng4 Bgd5 Kh3 Nc6 Qhg7 Bh1 Qh8 Bg2+
RNK1k1nq/2b2Br1/1p1r2bR/Q3NBb1/1pN1r3/6Bp/4q1N1/b1qn3B b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 d5 f4 e5 g4 h5 a4 h3 c4 e3 Kd3 e2 g5 e1B g6 b6 c5 h4 a5 h2 c6 Nf6 a6 Bd2 c7 Nc6 g7 Bd6 g8B Ne7 f5 Ne4 f6 Nc3 a7 Rh7 Bg2 Bg5 Bf4 Rg7 Ne2 Bf5+ Be4 Bg6 c8N Rb8 a8B Bc7 Bf5 Rb7 Qc2 Nd1 Na3 Ra7 Be6 Ng8 Qa2 Ra5 Na7 e4+ Kc2 d3+ Kb3 d4 Kc4 d2 Bg3 e3 Nf4 e2 Ng2 e1B Nc6 d3 Nb8 Ra7 Kb5 Bf2 Kc6 Bd4 Nc4 h3 Rg1 h1Q Qa5 Bc3 Ra4 Ba1 f7+ Ke7 f8N Ke8 Ra2 Re7 Bd5 Re4 Nfd7 Qf6+ Bde6 Qh8 Re1 Qf1 Nde5 Qe2 Bb7 Nc3 Rf1 d1Q Bd5 d2 Bf7+ Kf8 Kd7 Qc1 Rf2 d1R+ Kc8 Rd6 Rf4 Nd1 Rh4 Bcd8 Bc6 Rad7 Rh6 Bc7 Qc5 Ke7 Ra8 Kf8 Qa5 Re7 Bfe8 Rg7 Bb7 Re3 Bf3 Re4 Bf7 Ke7 Ne1 Kf8 Bh1 Ke7 Ng2 Kf8 Bd5 Ke8 Bf7+
3B2Q1/RpnrR1K1/q3BBb1/2b1R2N/qB2r1n1/2p2N2/qkp1r3/R5qn b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 Kd4 a5 f5 d3 g5 a6 c5 e5 g3+ Kf3 b3 a7 g2 h5 g4+ Kf2 c3 h6 b2 e6 c4 h7 f3 Kg3 f4+ Kf2 c2 e7 g3+ Ke1 f2+ Ke2 f3+ Kd2 Na6 e8R Nc7 Rh5 Qh4 Nh3 g1Q Rhe5 g2 R8e7 Bf5 Nf4 Re8 a8R Nh6 Nh5 Bg6 R8a7 Ng4 Qe1 Rg8 h8B Rg7 Be2 f1R Qg3 f2 Bd1 Rh7 Bf6 Re1 Bf3 f1Q Bd5 Re4 Be6 Nf2 Qg4 Nh1 Qg5 Bf7 Qg8 Bg6 Nc3 b1Q Ba3 Qa2 Bb4 Nf2 Nb1 Ng4 Rf7 Bc5 Re7 Qa6 Bh8 Qf7 Bf6 Rf4 Ke2 Re4+ Kf3 Re2 Kf4 c3 Bd7 Qfa2 Nd2 Rf7 R5e6+ Kd5 d4 Rg7 Nf3 Kc4 d5 Kb3 Re4 Kb2 R7e5 Rh7 Be6 Rd7 d6 Qgh1 Bd5 g1N Re7 Qg2 R4e5 Qgf2 Be6 Qd4+ Re4 Qh1 Kg5 Nh3+ Kh4 Qf1 Re5 Nhf2 Kg5 Qg1 Nh2 Bf7 Nf3 Nh1 Kf5 Bg6+ Kg5 Ne3+ Kh6 Ng4+ Kg7 Qf4 Ba5 Qfa4 Bb4 Re4 Rf7 Rde7 d7 Re2 d8B Rd7 Bc4 Re6 Re7 Re4 Rg5 R6e5 Be6 Re2 Rf5 R5e4 Re5
1bk3N1/1pn1R2K/1r6/R1Brb1p1/2nq2p1/1NQ4R/Bn2q1bb/r1B1R2B b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 d5 f4 Kd7 h4 e5 c4 g5 a4 e3 Kd3 e2 c5 e1B f5 b3 a5 b2 h5 Bg7 f6 Bg3 h6 Bh2 f7 Na6 f8B Ne7 h7 Nc6 Qd2 Nc7 a6 Na5 a7 Nc4 Nc3 b1R Ra5 Rb6 Nf3 Bf6 Bg2 e4+ Kc2 e3 Kd3 e2 Ne4 e1B Qc3 Bh4 Re1 B4g3 Nfd2 Bfe5 Bh1 Qf6 Bd6 Rd8 h8R Qe6 Rh3 Bgf4 Ke2 d3+ Kf2 d4 Nb3 d2 c6+ Ke8 Bc5 d1N+ Ke2 Rd5 Kd3 Kd8 Nf6 Bd7 Ke4 d3 Ng8 d2 Nd4 Na6 c7+ Kc8 Nb3 Qf6 Ra3 Bc6 Ra5 Qh8 Kf5 Ndb2 Kg6 Qf6+ Kh7 d1Q Nd2 Qe2 Nb3 Kd7 c8B+ Kd8 Ra2 Nc7 Be6 Bfg3 Bf7 Kc8 Ra5 Qf4 Bg6 Qd4 Bb1 Rd6 Ba2 Bg2 Rb5 Rd5 Rb4 Rb8 a8R Bgf4 Ra5 Ra8 Rab5 Ra4 Ra5 Ra3 Bb1 Ra1 Ba2 Na8 Rba4 Bb8 Rb4 Nc7 Rbb5 Be5 Rb4 Rbd6 Rb6 Rg6 Re6 Rf6 Re7 Rc6 Bf4 Rb6 Bc1
b2QN1B1/1R3N1r/1qrBN3/7R/2p1KRb1/1qpnb2k/bR1rp3/1N4nr b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 f4 Kf5 a4 e5 d4 b5 a5 h5 d5 c5 g3 c3 a6 c4 a7 b3 d6 b2 d7 h3 Rh2 h4 Qd2 Kg4 f5 b4 f6 b3 f7 Nf6 Bg2 Na6 Bf1 Nd5+ Ke2 e3 Ra2 e4 Qc2 Nf4+ Ke1 e2 Kf2 e1R Qd1+ Ne2 Ke3 Rh7 Nf3 Bh6+ Ng5 Nc5 f8R Qb6 d8N Bf5 Rh1 h2 Ne6 h3 Qd8 Rc8 a8N Rc6 Nac7 Rd1 Ne8 Ng1 Bd3 Rd2 Kd4 e3 Nf7 e2 Kd5 Rd1 Bf4 Rd2 Bd6 Bg5 Ke5 Be3 Bc2 Nd3+ Kd5 Kf3 g4 Kg2 g5 Bg4 g6 Rh4 g7 Rh7 Na3 b1Q g8R b2 Ke4 Qd1 Rg7 b1B Rb2 Ba2 Bb1 Qa4 Bc2 Qab3 Nb1 Nf3 Rf1 h1B Rh8 Ng1 Rf4 h2 Nh6 Nf3 Rb7 Kh3 Nf7 Bg2 Rg8 h1R Rg5 Rh4 Rgf5 Rh7 Rh5+ Kg3 Qc8 Rc5 Rb8 Nde1 Qd8 Rh8 Bd3 Rc7 Kd5 Ng1+ Ke5 Ba8 Rb7 Rc6 Bg6 Nd3+ Ke4 Kg2 Bh7 Kg3 Bg8 Rh7 Rc5 Kh3 Rh5+
3R1rN1/2p1K2B/bb4B1/2Qpnq2/2Rn2N1/4q2B/pB1r1NN1/3rbkbr b - - 0 1 illegal: No proof kernel
b1q2kQN/2pq1rnb/1B2p1p1/1B3R1B/N1r5/KNb3qB/1p2N3/1R2nr2 b - - 0 1 illegal: No possible last move
1qb1n2B/4R2R/rp2prk1/R1B4n/p2b2B1/p2Nb2Q/nrN1K1n1/1B4R1 b - - 0 1 illegal: No proof kernel
1bB3r1/qpR1R3/Bq1N2R1/k2bn3/5pnn/2K1BnB1/p2r2p1/Qr4NR b - - 0 1 illegal: No proof kernel
1rqN1n1r/pqB2rp1/1nn1r3/Q2Rp1BR/1BR3k1/1R6/3p2NK/b2b3B b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 b4 Kf7 f4 Kf6 Kf2 Kf5 Kg2 d5 c4 e5 h4 g3 h5 a3 b5 a2 b6 e3 h6 d3 c5 d4 b7 d2 c6 d3 h7 e2 c7 e1Q Nh3 Nc6 b8B Nb4 Na3 Ne7 Ng5 Ng6 Qa4 d1N Qa5 Nc6 Rb1 a1R Nc2 Bb4 Ne6 Kg4 f5 Bc3 f6 Nb2 f7 Nf8 Rh5 Nc4 Rb3 Nb6 Bg5 Qb1 Ne1 d2 Bd3 Ba6 Be4 Be2 c8R Bd1 Bc7 Rb8 Kh1 g2+ Kh2 g1R Ng2 Qe8 Nd8 Rf1 Bd5 Ra3 Be4 Ba1 Bd5 Nfd7 f8B Rf7 Bb4 Nf8 Be4 Qd3 Bd5 Qa6 Be4 Qb7 Bd5 Rg8 h8R Ra4 R8h6 Rh8 Rd6 Ra2 Be4 Rc2 Rd5 Rc4 Bh7 Rcf4 Be4 R4f6 Nf4 Rd6 Bh1 Re6 Ng2 Qd7 Bcd6 Ne7 Rc1 Nc6 Bc7 Qdc8 Rc4+
1q1B1Kn1/2qp1RNB/3QBp1p/2p5/4k1rN/p2Rrn1B/b1R1qn2/1Rb5 b - - 0 1 illegal: No proof kernel
2n1N1Kn/1pqN3N/1N1p1p1p/pBQ5/rk2rnbB/3R2b1/r5RR/4R2r b - - 0 1 illegal: No proof kernel
N2Q1k2/N1r2Nn1/1b2r3/bnNBnnp1/2n2RqB/4Q2q/1q1NB3/3K4 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 Nh3 c5 Ng1 cxd4 g4 hxg4 b4 a5 b6 Qf6 b5 Qg5 Ra4 Ba6 bxa6 Qd8 Rb4 axb4 h4 f5 e4 d5 c4 g5 c5 d3 c6 b3 a7 g3 e5 f3 e6 f2+ Kd2 g2 b7 d4 h5 b2 h6 f4 e7 f3 h7 Qb6 c7 Nf6 c8B Nc6 b8N Nh5 Qc2 Ne5 Nh3 g1B Bg4 Ng7 Nc6 Rc8 a8N Rc7 Be2 f1Q Bc8 f2 Nf4 Qh3 Bf3 f1N+ Kd1 d2 Qc5 Ne3+ Ke2 d1N Na7 Nef5 Bd2 Nde3 Be6 N3c4 Kd1 d3 Be1 d2 Nd3 Qb5 Qd6 Bb6 Rf1 Rg8 h8N Ba5 Nc3 b1N Nc5 Nba3 N3e4 Qb2 Bd5 Nb5 Nf7 Rh8 Bh4 Rh6 Be2 Re6 Rf4 Bb6 Nd8 Ba5 Ndc6 Kf7 e8Q+ Kg8 Nd8 Bb6 Qg6 Be7 Qh6 Kf8 Nf7 Ba5 Qb6 Bd8 Qf6 Bb4 Nd7+ Kg8 Bf3 Bde7 Ke2 Ba5 Qe3 Bc5 Bh5 Bcb6 Ndc5 Kf8 Qd8+ Re8 Kf2 d1Q+ Nd2 Qdf3+ Ke1 Qfg2 Be2 Qgg4 Qf6 Ree7 Kd1 Re6 Qd8+
2b5/2b1K3/n2nBQbk/6Br/3n3N/RB1q2RQ/2npBQ2/1B2rb1n b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Nc3 exf4 Na2 b6 Nb4 axb4 a5 Qe7 axb6 Qd8 Kd2 h5 Kd3 f5 Kc4 Kf7 Kd5 Kg7 c4 f3 g4 f4 e4 h3 c5 f2 e5 h4 b7 f3 b6 b3 e6 b2 e7 b1B Kd6 d3 c6 d2 c7 h2 g5 h3 g6 Nf6 Qa4 d1N Bc4 f1Q Be2 f2 Qg4 Rh5 Qd4 Ne3 Ra3 Nc2 Be3 Na6 b8Q Qd1 b7 f1B Nf3 Qd3 Rg1 h1N Rg5 h2 Nh4 Ng3 Qa7 h1N b8Q Kh6 Qb3 Rb8 g7 Nf5+ Ke5 d5 e8B Ne4 g8B Rb7 Bg6 Ned6 Rg3+ Qg5 Qa1 d4 Qe6 Qf4+ Kf6 Rb5 Qd7 Re5 Bb3 Re4 Qc5 Re5 Qb2 Re4 Qe5 Qg5+ Ke6 Be7 Qa2 Bd8 Bh7 Bb7 c8B Bc7 Bg6 Qb5 Qb2 d3 Qd4 d2 Qa7 Rf4 Qf6 Nfd4+ Ke7 Qd3 Qh3 Re4+ Bce6 Bc8 Qc5 Ba2 Ba4 Bd5 Bb3 Ba8 Qcf5 Re5 Qf2 Be4 Bf7+ Bg6 Ba2 Rb5 Bb1 Rb2 Bb3 Ra2 Bfe6 Ra1 B1a2 Rd1 Bb1 Re1 Bxg5+
nb2k2Q/b4R2/QqRq3n/1q3N2/1R1b1BN1/2qrN3/p2bK1b1/1RR5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 b4 a5 c3 a4 Bg2 d3 Be4 Ra5 bxa5 Nc6 Bd5 Nb8 Bb3 Ba3 Bc2 dxc2 Nf3 Bb4 Ng1 Bf8 h4 f5 e4 d5 h5 g5 c4 f3 b6 f2+ Kd2 f1Q b7 d4 h6 d3 h7 f4 c5 g3 c6 a3 c7 a2 a6 f3 e5 g4 e6 g2 a7 f2 a8R g3 e7 Bh3 c8R Nh6 Rc3 Nd7 b8Q Nb6 Nf3 g1B Nh2 g2 Ra7 Na8 Qe2 Qe1+ Ke3 d2 Ng4 d1Q Rc6 Rg8 h8R Qd6 Na3 Qc3+ Qd3 Bh2 Ke2 g1B Nc4 Bg7 Bf4 c1B Nce3 Bd2 Rc1 Bd4 Qa6 Bg2 Rh7 Rg5 Rf7 Rd5 Rb7 Ba7 Rb4 Rd3 Bg5 Be5 Bf4 Bh2 Rcb1 Bed4 Rhc1 Bg3 Qbb5 Qb6 Qh5 Kd7 e8N+ Kd8 Re1 Bh2 Ng7 f1Q+ Kd1 Bg3 Ngf5 Ke8 Qh4 Qh1 Qf6 Qh5 Ke2 Bh2 Rec1 Bg3 Ne7 Qhb5 N7f5 Qd7 Bg5 Bgb8 Bf4 Qd6 Qh8+
r1Q1b1bK/4RbB1/3q4/1Q3p1N/kn1rq1Q1/p2r2bR/bQ1B3Q/3R4 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 b5 a3 e5 Nc3 Nc6 Nb1 a5 a4 exf4 axb5 a4 Be3 Na5 Bd2 Nf6 Bc1 Ng8 bxa5 h5 g3 g5 Nd2 g4 Ndf3 Nh6 Bh3 gxf3 g4 Ng8 g5 Bc5 Be6 Bf8 Bg4 hxg4 Kd2 d5 Kd3 Kd7 c4 f5 h4 f2 e4 f1Q+ Qe2 a3 e5 f3 g6 f2 b6 Kc6 b7 g3 b8Q g2 h5 Kc5 g7 Ba6 h6 Nf6 g8Q Bb5 e6 Kb4 e7 Qe1 e8R f1B a6 Qd6 h7 Ka4 Re7 Be8 Nh3 g1R a7 Rg4 c5 Bh6 c6 Bf4 c7 Bg3 c8Q Bf7 Qg5 Rd8 h8B Bg2 Qeb2 Qe4+ Kd2 d3 Kc3 d2 Nf4 d1B Rh3 Bb3 Bd2 Ba2 Bg7 Bf1 Qc5 Bb5 Nh5 Bbe8 Rd1 Rf4 Qg4 Bg8 Qe3 Bef7 Qd3 d4+ Kc2 Nd5 Qc8 Qg2 Qde2 Qh1 Kd3 Be8 Qh2 Nb4+ Ke2 d3+ Ke3 Rd7 Qc5 Rd4 Qe5 Rad8 a8Q+ Ra7 Qc8 Ra8 Be1 d2 Qec5 Bh4 Qce5 Rd3+ Kf4 Bg3+ Kg5 Qe4 Qd5 Qde5 Qdc4 R8d4 Kh6 Bgf7 Kh7 Qd6 Kh8 Bg8 Rb1 d1B Bd2 Bdb3 Rd1 Bgf7 Q4c5 Bg8 Qb6 Bbf7 Qb5+
1N4b1/2B1nr2/nKQ5/B2q3r/qR3qN1/kB5Q/3bB2n/q2rBNnq b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 a5 h4 g5 e4 f5 b6 f4 Kb5 d3 c4 a4 b7 d2 h5 f3 h6 f2 h7 g4 Qb3 d1R Qe3 a3 Rh3 a2 Bd2 a1Q Nf3 g1Q Be2 f1Q Nh2 g2 Be1 g3 Ng4 Ra7 Nd2 Na6 b8N Qf4 Nf1 Qh1 Rh4 g1N Qc1 Qdg5+ Kb6 g2 b5 Ne7 Ba5 Bh6 e5+ Ke6 c5 Kd5 c6 Nf3 c7 g1N e6 Nh2 Qc3 Qfa4 Qa3 Qgf4 Qh3 Kd4 Be1 d5 Ba5 Bd7 c8B Be8 Bd7 Bf7 Be8 Bg8 Bf7 Rd3 Be1 Kc4 Ba5 Kb3 Be1 Nc6 e7 Ka3 e8Q d4 Bb3 Rf7 Ba5 Ne7 Qc6 Rd1 Be1 d3 Ba5 Rf5 Be1 Be6 Ba5 Rhf8 h8B Bg8 Bhc3 R8f7 Be1 d2 Nf6 Qg5 Rb4 Qf4 Ng4 Rg5 Ka7 Rh5 b6 Rc1 b7 d1Q Kb6 Qdd5 Nd7 Rd1 b8B Qg3 Bc7 Bd2 Nb8 Qh4 Nh6 Qf4 Ng4
q7/1QR1nQn1/b3nB2/KQb3r1/2k3b1/3N1R2/1bn2bn1/Qn1NQ1Rr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 h4 Kd6 e4 Kc5 c4 a5 e5 g5 e6 d5 b3 f5 b6 a4 h5 a3 e7 f4 e8R a2 b7 f3 h6 f2 h7 f1N+ Kd3 g4 Re4 Na6 b8Q Nd2 Re8 Ne7 Qe1 Bg7 Rh4 Nc7 Rh1 Ne6 Qee5 Ba6 Kc2 d3+ Kc3 Qc8 Nh3 g1N Qb7 g2 Qf6 g3 Nf4 Nh3 Rf8 g1B Bb2 Bf2 Rc1 g2 Rg1 Rg8 h8Q Nhg5 Qh5 Rh8 Qf7 Rh1 Rc1 g1B b4+ Kd6 b5 d4+ Kb4 Qc6 Nc3 Nb1 b6 d2 Ka5 Kc5 Nh5 d1B Nf4 Bg4 Nd1 d3 Rc3 d2 Nd3+ Kd6 c5+ Kd5 Rc1 Re8 Bc3 Kc4 Rc2 Qc8 c6 Qa8 c7 Bc5 c8Q Bf2 Qcd7 Rd8 Qde8 Rd5 Rc1 Bh8 Qe5 Ng7 Qe1 N5e6 Bf6+ Nc3 Rab1 a1N Qed7 Nc2 Qa4+ Nb4 Qa1 Rg5 Qa7 Nc2 b7 Nb4 b8Q Nc2 Rb7 Nb1 Qbe8 Rf5 Rc7 Rg5 Nc3 d1N Qb7 Nde3 Nd1 Ng2 Qec6 Qe8 Qcb6 Qc6 Qb5+ Kd5 Re8 Bg3 Be5 Ng6 Qb8 Nf5 Qec3 Qa8 N1b2 Bf2 Rg1 Bg7 Rh8 Rh7 Qe1 Rh1 Rh3 Nge7 Nd1 Bf6 Rf3 Ng7 Qbb2 Kc4 Q8b7 Bd4 Q2b6 Bb2 Bc3 Bd4 Q6c6 Be3 Bf6 Bf2 Qcb5+
1r2R3/1Rq1Qq2/1BN4N/1r1nb1rr/nNr5/rq1kq1R1/5qQR/5R1K b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 f5 Qd2 h5 Qd3 f4 Nb1 b6 Bh3 Bb7 Qd2 Be4 Qd1 Bf5 gxf5 Ra5 Bg4 hxg4 Na3 Ra6 Nb1 Ra8 Kf1 Kf7 a4 Kf6 e4 Ke5 c4 g5 h4 d5 a5 b5 h5 g3 f6 g4 f7 f2 Kg2 b3 c5 d3 h6 Kd4 h7 b4 c6 d2 e5 b2 c7 b3 c8N Bg7 f8R Na6 e6 Nc5 e7 Nf6 e8Q Qc7 Qc2 d1Q Rh5 f1Q+ Kh1 g2+ Kh2 g3+ Kh3 f3 a6 f2 Qf7 Qd2 Nc3 b1R a7 b2 Ra2 Rb8 Qcg6 Ra1 Ne7 b1R Re8 Ke3 a8R d4 Rb2 d3 Rh6 Nd5 Na2 Be5 Rb7 Rb5 Ra3 Na4 Nc6 Qe2 Qfe6 f1Q Qe7 Qf7 Nf3 g1R Nh4 g2 Nab4 Ra2 Rb3 Ra3 Nf5+ Ke4 Bb2 Rc1 Bd4 g1R Bb6 Rc4 Qg8 Qc2 Rf6 d2 Qg3 Qe1 Kh2 Qcc1 Rf3 d1Q Rg6 Qb3 Rf1 Rg2+ Kh1 Qf2 Rg7 Qce3 Qgg5 Rg8 h8R Rg3 Rh6 Rh8 Rh2 Rh5 Nh6 Rg4 Nc2 Kd3 Rgg8 Rgf4 Qg2 Rff5 Rg3 Rfg5 N2b4+
1R2r1q1/5Qbk/1n1bq2R/3b1R2/BRQ1Q1R1/2n1qb2/5nn1/Bb3NKb b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Nb1 f5 Nc3 b5 Nd5 f4 Ne3 Ra6 Nd5 Rf6 Ne3 Rf5 gxf5 Na6 Ng4 hxg4 Bb2 Nb8 Ba3 Bd6 Bc1 Bf8 Kf2 Kf7 a4 d5 c4 g5 e4 Kg7 h4 g3+ Ke1 g2 Kf2 d3 f6+ Kh7 h5 d2 a5 b3 c5 b4 e5 d4 f7 d3 h6 g4 e6 b2 c6 b1N a6 b3 e7 b2 e8R Nc3 a7 b1B a8R Be6 c7 Bg7 c8Q Nd7 f8R Bd5 Qb3 d1N+ Ke1 g3 Re6 f2+ Kd2 f3 Rg6 Nb6 Rg4 Nf6 Qc2 Nh5 Rb4 Nf4 Ne2 g1B Bb2 g2 Qc4 Bh2 Rb8 g1Q Raa4 Ng2 Ba1 Bd6 Rf5 Re8 Ng3 Qc8 Be2 f1Q Rhh5 Qff2 Nf1 Qd4 Rh2 Nf2 Bd1 Qe6 Rh3 Ne3 Ke1 Qgg6 Qe2 Qgf7 Rh4 Qg8 Rg4 Qf4 Ra6 Qfe5 Ba4 Qe4 Nh2 Ng2+ Kf1 d2 Kg1 d1B Nf1 Qe3 Qed3 Be2 Qde4 Qe5 Ra5 Nh4 Nh2 Bf7 Rd8 Kh8 Rfg5 Nfd1+ Kh1 f2 Rh5 f1B Rb8 Nf2+ Kg1 Bg2 Nf1 Bh1 Rab5 Ng2 h7 Bgf8 Rh2 Bf3 Rh6 Qe7 Rf5 Bd5 Qc7 Qee6 Qcc4 Qeg5 Rhh4 Kg7 h8Q+ Kg6 Rh2 Bh6 Qf6+ Kh7 Rh5 Qe3 Qf7+ Kh8 Rhg5 Bg7 Rg6 Kh7 Rh6+
q3Nb2/2n1N1pn/4n2B/1bN2B1r/R6k/2r2rBb/3Q3K/QBB1nq1n b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 c4 Ke7 h4 Kf6 e4 a5 c5 d5 b6 a4 b5 d3 c6 d4 h5 a3 b7 d2+ Ke2 Kg5 Kf3 f5 b6 d3 h6 a2 e5 a1N h7 f4 e6 Na6 b8B Nc7 e7 Nb3 e8N Nc5 b7 N5e6 Ne2 g1R Qc2 d1N Rh4 g2 Nd2 Ra3 Nc3 Nf2 Nd5 Nh1 Ne7 Nf6 Nb3 d2 Bd3 d1B+ Qe2 Re1 Bb1 g1N+ Kg2 Nf3 Qd2 Re3 Nc5 Ne1+ Kh2 f3 Ra4 f2 Ba7 f1Q b8B Rc3 Bb6 Nb5 Bf4+ Kh4 c7 Rf3 Ba5 Bd7 c8B Be2 Bac7 Bd3 Bh6+ Bc4 Bd6 Nbc7 Bdf4 Bdb5 Bd7 Qa8 Bc8 Bd3 Bd7 Bf5 Bc8 Rg8 h8Q Bh3 Qh7 Rh8 Qf5 Qc6 Qe5 Qa8 Bd7 Nh7 Qed4 Nd8 Bdf5 Nde6 Qe5 Rce3 Qeb2 Rc3 Qa1 Nf6 Bhg5+ Kh5 Rc4 Rh6 Ra4 Nh7 Bfc2 Kg4 Bg6 Rh4 Bh6 Rh5 Bgf5+ Kh4 Bg3#
B5b1/Qq3qnB/qrqq3r/1qn1R3/kQ3R2/1q1p4/B2QNB1b/4KB2 b - - 0 1 illegal: No possible last move, all moves rejected
2b5/N1B1R2b/qQ1n4/pQ1KQ3/1Qn3Nk/NnR2rbQ/4rnb1/1r4b1 b - - 0 1 illegal: No possible last move, all moves rejected
bQq3Q1/n1Q1RQ2/1b3Npb/QNN5/2B5/1b4nB/1Knbbk1r/4rq2 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 f4 Nh6 g4 Ng8 b4 Nf6 f5 Qc7 Bf4 gxf4 g5 Rg8 g6 Rh8 g7 Qd8 Ra6 Ng8 Rg6 hxg6 Kd2 Kf7 Kc1 Kf6 c4 Ke5 h4 a5 h5 d5 b6 e3 b5 Ke4 c5 e5 c6 e2 f6 Ke3 c7 e1B f7 a4 b7 a3 h6 f3 b6 f2 h7 e4 Nd2 a2 Rh2 a1B Kc2 d3+ Kb1 d4 Qh5 Nf6 g8B Bh6 f8N Nc6 b8Q Bb7 c8Q Na7 Qd7 Qc8 Qhd5 Nh5 Qa4 Ng3 Nb3 d2 Qde5 d1B Nf3 d3 Nc5 d2 Bgc4 Bb3 Qd5 d1B Qc7 Bd2 Bh3 f1Q Nfd7 Bd4 Qa5 Bc6 Rh1 Kf2 b7 e3 b8Q e2 Nf6 e1N Qdf7 Nc2 Rg1 Re8 h8Q Re1 Qhg8 B4e3 Kb2 Be2 Nd4 Bcf3 Nb7 Bd5 Nb5 Bb6 Nc5 Bdf3 Qd6 Bd5 Qbc7 Rb8 Qdf8 Ba8 Qfd8 Rb7 Qb8 Rd7 Qdc7 Rd4 Rh1 Rh4 Rg1 Ne4 Rg4 Ng3 Re4 Rh5 Re7 Rh4 Bd7 Rh2 Bh3
NbbQ3k/1Q1n4/1q1bqnK1/rb3B2/5R1Q/B3q2B/1r3p1R/Q2b2Qq b - - 0 1 illegal: No possible last move
1rbk1K2/4Rp2/nb1qq1b1/bq2rQ2/b1B1R2B/3N3q/3RQ3/RRQ4n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 d5 Kd3 a5 e4 g5 b4 g4 h4 a4 c4 a3 c5 a2 h5 Ra7 e5 Ke7 h6 Nf6 e6 Qd6 b6 Ra5 b7 Na6 b8Q Kd8 h7 Ne4 Nf3 g1Q b5 g2 b6 g3 c6 Qh2 b7 g1B Qe2 g2 Ne5 Ng3 Bg5+ Be7 Re1 a1Q Bh4 Qh3 Rd1 Qc1 Rd2 Qcc5 Qa7 Bf2 b8R g1Q Rb1 Rg8 h8R Qb5+ Nc4 Be3 Qc5 Qgh2 Rg1 Nh1 Rg4 B7g5 Re4 Qhe5 Qa3 Qf6 Qc1 Bgf4 Rh6 Bg3 Rg6 Be1 Rg1 Rh8 Kc2 Rg8 Ne5 d3+ Kc3 Bb6 e7+ Ke8 c7 Qfe6 Nc6 Kd7 Nb4 d4+ Kb2 Rh8 e8R Rg8 Rd1 d2 Ra1 d3 Kc3 Qa4 Rg2 Re5 Rh2 Bb7 Re7+ Kc8 Rf2 Qb5 Rg2 Bg3 Re1 d1B Rh2 d2 Nd3 Bc2 Rg2 Bd5 Rf2 Ba5+ Kd4 d1B Rg2 Bb1 Rh2 Ba4 Rf2 Kb7 c8Q+ Kb6 Qd7 Rb8 Rd1 Bh2 Rd2 Bg1 Rd1 Qh6 Qf5 Qde6 Rd2 Bb7 Rb2 Bbc2 Rbb1 Bc8 Qee3 Qhg6 Rd2 Bh2 Qe2 Bg3 Ke3 Bf2+ Kf4 Qgf6 Rc4 Qd6 Re4 Qfe6 Kg5 Kc6 Kh5 Bfb6 Kg5 Qdd7 Kh5 Kc7 Kg5 Kd8 Kh5 Qec4 Kh6 Qce6+ Kg7 Qdd6 Kf8 Bd1 Qh2 Bh5 Qe2 Bg6 Nb4 Qc6 Qh2 Rb7 Bc4 Qb5 Nd3 Rb8 Qe2
1qNRbr2/3n4/4qp1k/nRR2q2/1RNQQ2B/2K5/b2rrRb1/rN1q4 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 a5 Bg2 axb4 Bf1 Be7 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Ra4 Rh5 Ra6 Rh1 Ra8 Kd2 Kf8 c4 Kg7 e4 h5 a4 b5 e5 d5 c5 f2 a5 f1Q a6 f3 c6 b3 c7 f2 e6 b2 e7 h4 e8R f6 a7 d3 Ra4 d4 Rb4 h3 Re1 h2 Qg4 Bd7 c8Q Qb6 Qh4 Ne7 Ne2 Nec6 Ra4 b4 Qe4 b3 Ng1 Re8 Re2 Na5 Rb4 Qe6 Qc3 Re7 Qc5 Be8 Nf3 Nd7 Ne5 Rb8 Rg1 h1B a8R Bg2 Nc4 Rd8 Rab8 Rc8 Nc3 b1B R8b5 Ba2 Nb1 b2 Rh1 Rb8 Rh5 Ra8 Nc3 b1Q Qce5 Qb3 Nb1 Qg1 Rc5 f1R Rf2 Qf5 Qd6 Qh2 Qb6 Qb8 Rcb5 Kf8 g7+ Kf7 g8N Kg7 g6 Rh1 Nca3 Qbe6 Nc4 Rh2 Rg5 Rf7 Qa7 Rf8 Ne7 Kh6 Qb6 Ra6 g7 Ra7 g8R Ra8 Kd1 d2 Kc2 d1R Nc8 d3+ Kc3 d2 Qbd4 Re1 Rc5 d1Q Bf4 Ra6 Bg3 Re2 Rcb5 Rh1 Bh4 Rd6 Qde5 Rdd2 Q5d4 Qff4 Rge5 Qff5 Rec5 Qa4 Nba3 Ra1 Nb1 Qd1 Ne7 Bg6 Nd6 Rf7 Rd8 Rf8 Nc4 Be8 Nc8
n2Q2k1/QnbBQ1N1/p6B/3b1K1R/3R4/1r2b3/QnnRq2n/n1Q3br b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 d5 Kd3 g5 c4 f5 h4 Kf7 b4 f4 e4 f3 c5 g4 e5 f2 b6 a6 b7 Ne7 e6+ Kg8 h5 Qe8 c6 Nf5 b5 Nd7 b8R Bb7 c7 Nb6 c8Q Bd6 e7 Bc7 h6 Nd6 Be2 f1N Nh3 g1B Qf5 g2 Bg5 g3 Qc2 Be3 Nf4 g1B Qc3 g2 Rd8 Nh2 Ne6 Rb8 Ng7 Na8 b6 Bc6 Qa5 Nb7 Bg4 Rh7 Qf4 Rh8 Kc2 d3+ Kc3 d2 Kd3 d1N Ra2 d4 Bd7 Rh7 Rd2 Bd5 Qa2 Rh8 Qd6 Rh7 Qda3 Rh8 Qc1 Nb2+ Kc2 d3+ Kc3 Nf3 Rh5 Nd4 Bf4 Nb3 h7+ Kf7 Bh6 Na1 Re2 d2 Rf2+ Bef4 Kd4 d1N Bh3 Bc4 Ke4 Bd5+ Kf5 Be3 Rd2 Qb5 Rd4 Qe2 Rd6 Nd3 Bg4 Nb4 Rd8 Nb2 Rd7 Rhg8 h8Q Nbc2 Qh7 Rh8 Rd2 Bb3 R7d4 Bd5 Bh3 Bgf2 Bg4 g1N Bh3 Nf3 Bg4 Nd8 b7 Nh2 Bh3 Bg1 Bg4 Rc8 b8Q Nb7 Qa7 Rb8 Bh3 Rhd8 Qh8 Rd6 Qd8 Re6 Qd6 Kg8 Qe5 Rb6 Bg4 Rb3 e8Q+ Kh7 Q8e7 Kg8 Q5d6 Rf8+ Ke5 Rf1 Bd7 Bgf2 Kf5 Rh1 Bc6 Bg1 Qdd8+ Kh7 Be8 Kg8 Bd7+
1bRK4/3R2b1/1kbR4/2rqb3/nq2QN2/2pQnN1q/6Bb/2bN1NNb b - - 0 1 legal: proof: c4 a5 g4 b5 f4 f5 e4 fxe4 f5 h6 b4 axb4 g5 d5 Bb2 dxc4 Be5 Ra4 Bf4 Ra6 Be3 Rf6 gxf6 Bb7 Bf4 Bc8 Bg5 hxg5 Ke2 Kd7 Ke3 Kc6 h4 e5 a4 b3 d4 b2 d5+ Kb6 f7 c5 h5 g4 h6 g5 h7 c3 f6 b4 d6 c2 d7 c1B+ Qd2 c4 Bh3 b3 Nf3 g3 Nh2 g4 Nf1 c3 Na3 b1B Rh2 b2 Nb5 g2 Nc7 Bg7 f8N g3 f7 Na6 Ng6 Nf6 f8R Bb7 Nf4 Bc6 Ne2 Nc5 Ng1 Qc8 d8N Ng4+ Ke2 e3 Nf7 e4 Ne5 Qf5 Nef3 Qd5 Qd3 Bc2 Rd8 b1Q Rd7 Rc8 h8N Qb4 Ng6 Be5 Nf4 Bb1 Ke1 e2 Rh1 Ne3 a5+ Ka7 a6 Na4 Ra3 Kb6 a7 Ba2 a8Q Bc4 Qd2 Ba6 Qd3 Bab7 Bg4 Bg7 Rh6 Be5 Rhd6 Bg7 Ngh3 g1Q Bh5 Qh1 Nhg1 g2 Kf2 Qh3 Ra1 Qhf5 Kg3 Qh7 Kh4 e1B+ Ng3 Bed2 Nf1 Be5 Kg5 Qh8 Bg4 Qh3 Ra2 Bg7+ Bf5 Be1 Kg6 Bg3 Be6 Bh2 Kf7 Bg3 Ke7 Bh2 Nge2 g1B Rb2 Bf2 Neg1 Bfg3 Bg8 Ng2 Bh7 e3 Be4 e2 Rd2 e1B Rd8 Rb8 Rc8 Ne3 Kd8 Bef2 Ne5 Be1 Bg2 Bef2 Nef3 Be1 Nfe6 B3e5 Nf4 Beg3 Rd1 Nc5 Qa4 Ra8 Qac2 Ra5 Qe4 Na4 Qcd3 Rc5 Rd2 Qdd4 Ncd5+ Ka7 Nf6 Qd5 Ng4 Kb6 Nf2 Ba8 Rd7 Bab7 Nd1 Bb8 Ne6 B3e5 Nf4 Bd4 Qc2 Qdb3 Qh7 Qb2 Bh1 Qa2 Nh4 Bde5 R2d6 Ba8 Qcd3 Bb7 Rd4 Bf3 R4d6+ Bbc6 Qhe4 Qd5 Bg2 Qf5 Bh3 Bh1 Bg2 Qh3 Nhf3
1b1nK3/2B4q/p2r2nN/BB1q1q2/1Q2b1Qq/R2Bn3/b1N5/b1N1kB1q b - - 0 1 illegal: No possible last move
n2Q4/brnQN1rN/nb1b1K2/NB1b1N1R/3B1b2/nn3kp1/2nB3N/8 b - - 0 1 legal: proof: f4 c5 e4 f5 d4 cxd4 g4 fxe4 a4 h5 b4 a5 g5 axb4 f5 Qb6 Ra3 Rh6 Rg3 Rh8 Rg4 Qf6 gxf6 hxg4 Kf2 Kf7 Kg3 d5 Kf4 g5+ Ke5 b5 c4 g3 h4 b3 a5 d3 a6 g2 a7 b4 h5 d2 h6 d4 h7 d3 c5 g4 c6 b2 c7 e3 Qa4 d1N Bd2 e2 Qd7 e1B Qc6 b3 Qc5 g3 Qb5 Nc3 Rh5 Bb7 c8N Na6 Qc4+ Bd5 Nh3 g1B Na3 b1N Qa4 b2 Be3 d2 Qg4 d1N Nc2 Na3 Bf4 b1N Bg5 Na4 Nf2 Bd2 Rh1 Ne3 Rh6 Nb6 Bg2 Rb8 a8N Rb7 Nd4 Nec2 Be4 e6 Rh3 Ne7 Rh5 Rg8 h8B Rg7 Bd3 Bc1 Bf1 Nd2 Bb5 Nb3 Qd1 Bd2 Ng4 Bc1 Bd2 Be3 Nc7 Na8 Nc6 Ba7 Ne8 Bb6 Na5 Ba7 Kd6 e5 Nh2 e4 Ke5 e3 Qg4 e2 Ned6+ Kg8 Qd4 e1B Qg4 Bef2 Qa4 Bfe3 Qg4 Bh6 f7+ Kh7 f6 Bb6 Qa4 Kg6 Nf5 Bhe3 Qd4 Ba7 Qa4 Beb6 Qd4 Bg2 Qd7 Nd5 Ke6 Bd6 f8Q Bh1 f7 Be4 Qfd8 Bh1 Bc3 Bcf4 Bd2 Bf3 Rh4 Bh1 Nce7+ Kg5 f8N Be4 Rg4+ Kh5 Nh7 Ndc7+ Kf6 Bg2 Nd4 Bd5 Rg5+ Kh4 Rf5 Kh3 Rh5+ Kg2 Ndf5 Rf7+ Kg6 Kf2 Be5 Rg7+ Kf6 Kg2 Bec3 Kf2 Bd4+ Kg2 Ng4 Kf3 Nh2+
1n5K/1Bnr1q2/1BRq4/3pQn2/k1p1NbQ1/b2rB2B/rQ3B2/2Nr1r2 b - - 0 1 legal: proof: e4 a5 b4 b5 a4 e5 d4 exd4 h4 f5 c4 g5 e5 gxh4 Ra3 Ba6 Rah3 axb4 Rf3 b3 Rf4 b4 Re4 Bb5 cxb5 fxe4 Kd2 d5 f4 Kd7 g4 h5 f5 c5 a5 c4 f6 d3 Ke3 h3 Kd4 b2 f7 h2 a6 d2 b6 Kc6 a7 Kb5 e6 h4 Ke5 b3 e7 h3 b7 e3 g5 e2 g6 e1B g7 Rh7 Ne2 Ka4 Qc2 d1R Be3 Bd2 Nc1 Nh6 Kf6 Nf5 g8Q Qe8 Bf2 Bf4 Nd2 b1R Ne4 Rd3 Qg4 Qd8 Rg1 h1Q Qb2 h2 Bh3 Qf3 Rf1 Qd7 e8Q h1R Qee5 Ba3 f8B Qc6+ Bd6 Rd7 Be3 Qc5 Bc7 Qb4 Re1 Rf1 Bcb6 Ra1 Ne2 Rad1 Nc1 Ne7 Kg7 Qd6 Kh8 Nf5 Qh2 b2 Qf2 b1N Qfb2 Nc6+ b8B Nc3 Bf2 Nb5 Bbe3 Nd8 Bc7 Nc6+ Bd8 Nc7 Re2 Rb8 a8B Rb5 Bb7 Nb8 Bg5 Ra5 Bb6 Ra8 Re3 R3d2 Rb3 Rd3 Rb5 Ra6 Rc5 Ra8 Rc6 Ra7 Qg1 Qh5+ Bh6 Qf7 Qg4 Bg3 Be1 Bc5 Qc2+ Ka3 Bhd2 Bf4 Be3 Ra6 Nc3 Kb4 Bh4 Ra2 Ne4 Ka3 Qcg2 Ka4 Qgb2 Ba3 Bhf2
2Kn1n1q/8/BQ3nbp/1n2q1p1/6k1/3n1QbR/NR1N1QrR/Q3rr1Q b - - 0 1 legal: proof: d4 g5 g4 b5 h4 c5 a4 cxd4 f4 Qc7 f5 Qd8 f6 exf6 axb5 gxh4 g5 Ne7 g6 Ng8 Bg5 fxg5 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 c4 a4 b4 h6 g7 h3 c5 a3 e3 d3 b6 d2 c6 a2 b7 h2 b5 Nf6+ Kc4 d5+ Kd4 Bd6 g8R Bg3 Kc5 d4 b6 d3 c7 Nbd7+ Kc6 Nf8 Nf3 Kg4 b8Q Bf5 Kb7 Bg6 e4 Qd6 Qc1 d1N e5 d2 e6 Nb2 c8Q d1N Qa7 Nc3 Qc5 Qe5 e7 Nd3 e8Q Nf4 Ba6 Nb5 Qf2 N4e6 Nfd2 Rh7 Qeb8 Nd8+ Kc8 Rh8 b7 Rh7 Rg1 h1N Nc3 Rg7 Rb1 a1Q Rg2 Rh7 Rb3 Rg7 Qff1 Nf2 Rh2 Nd3 Qaf2 Ra7 Qd6 Rh7 b8Q Rh8 Bb7 Ra2 Qd5 Qf5+ Qe6 Nd5 Qc7 Ne5 Rg7 Nd4 Qf1e1 Rh7 Nf1 Bh4 Qfe3 Rg2 Rb4 f6 Rd7 Re7 Rb1 Nb5 Ba6 Re8 Re7 Nd3 Na2 Qd4 Q7c2 Bf2 Qd7 Qe6 Rb4 f5 Qa1 f4 Rb2 f3 Qed1 Qf5 Qde6 Qh8 Qcc5 Nf6 Nd2 Bh4 Qh1 f2 Qc6 f1R Qf2 N8d7 Qee3 Nf8+ Re6 Re7 Qeb6 Qd5 Re3 Qe4 Reh3 Bg3 Nb1 Qd4 Qa8 Ree1 Nd2 Qe5 Qaf3#
1Q5q/1N1p1r2/R1b1kQ2/3nr1n1/N2KQ1nQ/Rr1Rr3/B1b4p/nb1Q4 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 a5 Bb2 axb4 Kd2 Be7 Bc1 f3 g6 Bg5+ hxg5 f2 Kd3 Na6 Bf4 exf4 Kd2 Nb8 Kd3 Ke7 a4 b5 e4 f5 c4 h5 e5 h4 g7 f3 c5 h3 a5 h2 e6 f4 a6 b3 c6 b4 a7 b2 c7 b3 g6 Nh6 g8Q Ng4 g7 Bb7 c8Q Nc6 Bg2 f1N Kc4 f2 Qc1 d3 Ra6 d2 Nf3 d1B Qd2 Nfe3+ Kc3 f1R Ng5 f3 Bh3 f2 Qh7 Re8 Ne4 Nce5 g8Q+ Nf7 Qc6 Bc2 Qh4+ Ng5 Nd6 Nd5+ Kd4 Rb8 a8Q Re1 Nc3 f1R Qd1 b1N Na4 b2 Qb6 Kf6 e7 Bc6 Nb7 Re5 Rg1 Na3 Rg3 b1B Rd3 Rf3 Bg2 Rf8 e8R Rfe3 Qgh7 Qc8 Qe4 Rf7 Re7 Qh8 Bf1 Rg8 Qb8 Rgg7 Re8 Rh7 Rf8 Ke6 Bg2 Rff3 Rf7 Rh3 Rf3 Rf7 Bh1 Nc4 Ra3 Nd2 Bg2 Rb3 Bf1 Re3 Bc4 Rg3 Ba2 Nb3+ Kc4 Na1 Kd4 Rb3 Rd3 Rgf3 Q6d8 Re3 Qf6+
2Q3k1/pn2Qr1R/1qqbBbp1/4r3/2B1qB2/4R1q1/K2bQ1b1/N2nB1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 f5 b4 Kf7 c4 d5 Kc2 d3+ Kb3 d2 e4 g6 h4 d4 b6 d3 c5 f4 b5 f3 h5 f2 e5 Nd7 b7 Rh7 b8B Ne7 h6 Nf5 c6 Bd6 b6 Bb7 c7 Ne3 c8Q Nc5+ Ka2 Kg8 e6 Rf7 Qe2 d1Q e7 d2 e8B Qe1 Nf3 d1Q Nd2 g1B Bd7 g2 Nb3 Qd3 Bd2 Qe4 Be6 Nd1 Qc7 Bgh2 Qe7 g1B Bc3 Bd5 b7 Bhf4 Bc7 Bgh2 b8Q Nb7 Qc8 Bd2 Bb4 Bhe5 h7+ Kh8 Rh3 Bf6 Re3 Kg7 h8B+ Kg8 Bg7 Qe8 Bf8 Qc6 Rc1 Qb6 Rc5 Bc6 Rh5 Bd5 Rh7 Qc6 Qcd7 Re8 Qc8 Qb6 Bh6 Bc6 Bf4 Bd5 Bg2 f1Q Bh1 Bc6 Na1 Qfg2 Bh2 Qeg3 Bg1 Q2h3 Bc4 Qd7 Bg2 Bd5 Bh3 Qdc6 Ba5 Qf5 Bc3 Bg2 Ba5 Qfe4 Bhe6 B6b4 Be5 Bd6 Bf4 Qd3 Qec7 Qde4 Bg4 Bc1 Be1 Bd2 Q7d7 Nd8 Bf5 Re6 Qe7 Re5 Qcc7 Nb7 Bfe6 Qh4 Qcd7 Qg3 Qc8+
1rB3KB/b1bpr3/R5bQ/1B1N3b/r2bqp2/4QQ2/3nQ2R/k2Q2rr b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Qd3 f5 Nc4 f4 Ne5 Nc6 Qd2 Nce7 Qd1 Nf5 gxf5 Nf6 Ng4 hxg4 Qd2 Ng8 Qd3 Ra4 Qd1 Ra8 Kf2 Ke7 a4 Kd6 e4 Ke5 h4 g5 c4 b5 c5 d3 c6 Kd4 c7 Kc3 h5 d2 e5 b3 a5 b4 h6 b2 f6 b1B f7 b3 e6 b2 e7 Nf6 e8B Bg6 a6 b1R h7 Bb7 a7 Bd6 f8Q Qe7 c8Q+ Bc7 Bb5 Qe4 Qh6 Rf8 h8Q Rf7 Rh3 Re7 Ra6 Rb2 Qe2 d1R Rh2 Rb4 Qh3 Ra4 Bf7 Rb8 a8Q Bh5 Bd2+ Kb2 Qh6 Ka1 Bfc4 Bd5 Qhf1 Bdf7 Qe8 Bfg6 Bd5 Re1 Bb7 Rc1 Qfd1 g3+ Ke1 g4 Bc8 g2 Kf2 Rb1 Qe3 Rc1 Ne2 Rb1 Nc3 g1B+ Ke1 g3 Nd5 g2 Bc3+ Ka2 Kd2 f2 Bd4 f1R Kc3 Ka1 Qee2 Bf2 Qe3 g1B Qc6 Ng4 Bh8 Ne5 Qa8 Nc4 Qc6 Qh1 Kd4 Nd2+ Kc5+ Be5 Qb7 Qe4 Qa8 Bd4+ Kd6 Bh4 Qc6 Bhf6 Qa8 Ba7 Qee2 Bgb6 Qc6 Bfd4 Qc3+ Ka2 Qcf3 Ka1 Qee3 Rg1 Qee2 Re5 Qe6 Rc1 Ke7 Bc7 Kf8 Rb1 Qeh3 Re7 Kg8 Rc1 Qfe3 Rb1 Qhf3 Rh1 Qc2 Rbg1 Qcd1+
Nrk1b1QK/1r1pr3/3b1r1B/1p1nn1QN/3r1bQ1/r6r/B3BQ2/Q1R5 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a3 Qg5 a4 Qf5 gxf5 Ra5 Ra3 Ra6 Rc3 Ra8 Rc6 h6 Rg6 h5 Rg4 hxg4 Kd2 Kd8 Kd3 b5 Ke4 g5 Ke5 g3 e4 g2 c4 f2 h4 g4 f6 d3 c5 f3 f7 g3 a5 b3 a6 b2 a7 d2 c6 Ne7 Kf6 Na6 e5 Rb8 a8B Nc7 e6 Bb7 h5 Kc8 h6 Ng6 e7 Ne5 Na3 b1R h7 Ra1 Be2 f1R Nh3 g1B Nf4 f2 Nh5 g2 Nc4 Re1 Qa4 d1R Bh6 Rg8 h8Q Ra3 Qg7 Bh2 Qg5 Rh3 Qa1 Bf4 Rf1 g1R Qg4 Ne6 c7 Be4 Bd5 Rd4 Qg5 Rb7 e8Q+ Nd8 Qe7 Ndc6 Qe6 Bd6 Qeg4 Bg6 f8Q+ Be8 Bf7 Rh8 Kg7 Rgg3 Rg1 f1R Be6 Bd2 Qf2 Ne7 Bd5 Rf8 Be6 Rf6 Kh8 Nd5 Bg8 Bf4 Bf7 Rb8 Bg8 Ra3 Nb6+ Kb7 Na8 Kc8 Be6 Rc1 Bg8 Rfe1 Rf1 Rc6 Rh1 Rcb6 Rg1 Nb4 Ba2 Nd5 Rh1 R6b7 Rf1 Rb1 Rg1 Rbb3 Rc1 Rbe3 Qb1 Nc4 Qh7 Bc5 Qhg8 Re7 Qfg1 Bcd6 Qf2 Ne5 Q4e6 Rb6 Qeg4 Kb7 c8Q+ Ka7 Qc3 Kb7 Bac4 Kc8 Qa1 R6b7 Ba2+
4b2r/1nRr3p/1qRNbq2/Q3Nq1p/5pQ1/RRR5/KB3kb1/n1rQ4 b - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 a5 g4 axb4 h4 e5 h5 exf4 g5 g6 h6 Nf6 Bh3 Bc5 Bg4 Bb6 Bh5 gxh5 g6 Ba7 g7 Bc5 g8R+ Bf8 Rh2 Ke7 Rh1 Bg7 hxg7 Ke6 Rh2 Kd6 Rh1 Ke7 Kd2 Ke6 e4 Ke5 a4 b5 c4 d5 Kc2 d3+ Kb3 Kd4 a5 d2 a6 Ke3 c5 d4 c6 f3 e5 f2 e6 f1B a7 d3 c7 Na6 e7 Be6+ Kb2 b3 e8Q b4 c8R Kf2 Qa4 Nd7 Qc2 f5 Rf8 f4 g8Q Qf6+ Rc3 Rc8 a8R Ndc5 Ra7 Bg2 Qg5 Nb7 Rf7 Nac5 Nf3 Rcd8 Na3 Rd7 Kb1 b2 Rg1 Nb3 Ka2 b1R Bb2 Rc1 Rb1 Na1+ Qcb3 d1Q Qg4 d2 Ne5 Qc2 Nac4 d1B Nd6 Qcf5 Qa5 Bdf3 Re1 Bc6 Re4 Bb5 Rec4 Ba4 Qbd1 b3+ Ka3 Rdd8 Rfc7 Be8 R4c6 Rd7 Re3 Rc3 Rc1 Rc5 Rcc3 Rc4 Bc1 b2 Ka2 Rc5+ Rb3 Rc4 Rec3 b1Q+ Ka3 Rc5 Bb2 Rc4 Rg3 Rc1 Rgc3 Qbe4 Ka2 Qe3 Qc5 Qd4 Ra3 Qe3 Qb5 Qb6 Qa5
2NB2Q1/1p5K/R1QBb2p/1p1n1k2/1Bqbr1nn/1Q2q1r1/1n4nQ/Q4R2 b - - 0 1 legal: proof: f4 d5 g4 h5 b4 e5 c4 exf4 cxd5 a6 b5 axb5 g5 Qd7 Qc2 Qd6 Qd1 Qd8 h4 Ne7 Bh3 Qd6 Na3 Rg8 Bg4 hxg4 h5 Ra7 h6 Ra6 h7 Qd8 Nc4 Ra8 Ne3 Rh8 Nf5 Ng8 Nh6 gxh6 Kf2 Ke7 d4 c5 e4 f5 a4 c4 d6+ Ke6 e5 f3 Kg3 f2 Kh4 f1Q Kh5 g3 Kg6 g2 d5+ Kd7 a5 f4 a6 f3 a7 f2 Bf4 c3 Qb3 c2 Nh3 g1N Ra6 c1N e6+ Ke8 e7 Kd7 Bh2 Nc6 Nf4 Qc4 Bg3 Nf3 Rf1 Rb8 a8Q Nb4 Qa7 Ra8 Qb8 Nf6 Bh2 Bg7 Bg3 Rg8 h8Q Ng4 Kh7 Nca2 g6 Bd4 g7 Nc1 Ng6 Ncd3 Be5 Re8 g8Q Qb6 Bf4 Nh4 Qe5 Bc5 Qa1 Nb2 Bd2 Na2 Bb4 Bd4 Qh8 Nc3 Qe5 Ra7 Qh2 Rf8 Qa8 Rf4 Qb8 Re4 Qa8 Ke8 d7+ Kf7 e8Q+ Kf6 d8B+ Kf5 d6 Nd5 Qc6 Be6 d7 Qbc5 Bc7 Qb6 Ra2 Ra3 d8B Qa7 Bcd6 Qb6 Qbd1 Rg3 Qb3 Qbc5 Ra6 Qb6 Re1 f1N Rb1 Nfe3 Ne7+ Kg5 Qb8 Neg2 Nc8+ Kf5 Rh1 Bc3 Rg1 Qe3 Re1 Bd4 Rf1+ Qf3 Qbc7 Qf4 Qg7 Qf3 Qg8 Qf2 Bf4 Qe3 Bfd6+
3bbQr1/Q2B1b2/1k4p1/p3nB2/1N1pR2n/5rn1/BB1qBn2/q1R3KQ b - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 g4 Bh6 h4 gxh4 g5 Ke7 g6 Qb6 Nd2 Qd8 Nc4 Ke8 Ne5 Bf8 g7 Ba3 Ng6 fxg6 Bh3 Bc5 Bf1 Bf8 Kf2 h5 c4 a5 b4 d5 e4 Kd7 e5 Kc7 c5 f3 c6 d3 e6 d2 e7 h3 e8B h4 Rb1 h2 Qe1 d1Q Ne2 h3 Nf4 Nh6 g8B Bd7 Bb2 Be7 Rc1 Kb6 c7 Nf5 c8B Nh4 Nd3 Nc6 Be2 Ne5 Rg1 h1B Rg4 d4 Re4 h2 Ba2 Rf8 Qf1 Be6 Bed7 Bf7 Qg1 Bg2 Qh1 Qd2 Bf5 Qd6 Bce6 Bh3 Bd7 Bg4 Kf1 Bd8 Kf2 Qc6 Kf1 Qcc3 Kf2 Ka7 b6+ Ka6 b7 Kb6 Kf1 f2 b5 Rg8 Nb4 Ra7 Ba3 Qa1 b8Q+ Rb7 Qa8 Rc7 Bde6 Rc3 Bb2 Re3 Bd7 Bf3 Rg4 Bc6 Re4 Rc3 Bc8 Bce8 Bcd7 Nhf3 Kg2 f1N Kf2 Ng3 Kg2 Kc5 b6 Nh4+ Kf2 Qh6 b7 Kb6 Qd1 h1N+ Kg1 Nf2 b8Q+ Kc5 Qf1 Qd2 Qc8+ Kb6 Qh3 Bc7 Qh1 Rb3 Qd8 Rf3 Qe7 Bd8 Qd6+ Nc6 Qf8 Ne5 Qa7+
1Q6/2N1K3/pr1BQ1r1/q2Q1NQ1/2k3np/8/1bprrq2/RbbB1qQB b - - 0 1 illegal: No possible last move, all moves rejected
NqbQQn2/Q2nQb2/1b2n2K/1b2p3/3p4/2n1RBRn/1p4r1/2NQR2k b - - 0 1 illegal: No possible last move, all moves rejected
QBNkn1n1/3p1nqB/4R1Qp/3BQB2/1q4nn/R3brB1/2n1Kp2/7b b - - 0 1 legal: proof: f4 g5 g4 c5 e4 f5 d4 cxd4 h4 a6 h5 b6 Nc3 fxe4 Nce2 Ra7 b4 a5 f5 axb4 Nf4 gxf4 g5 b5 Qe2 Ra6 Qd1 Rg6 hxg6 Qb6 Rh4 Qa5 Rh1 Qd8 a4 e5 c4 e3 c5 f3 c6 h6 g7 e4 g6 e2 f6 f2+ Kd2 e1N a5 d3 c7 b3 a6 b4 a7 b2 a8Q b1Q Ra7 b3 Bg2 e3+ Kc3 e2 Kd2 b2 Be4 Bc5 Nf3 Nc2 Qg1 e1N Ra3 Bb7 c8Q Na6 Qc7 Ng2 Ne5 Nh4 Nc6 Be3+ Kd1 d2 Ne7 Qb8 Bf5 Qa1 Qe5 b1N f7+ Kd8 f8B Nc7 Ke2 d1N Nc8 Ne8 Bd6 Nd2 Qgg3 Qb2 Re1 Bh1 Qg1 Q8b4 Bb8 Ne4 Qgg3 Ngf6 g8B N4d6 g7 Nf7 Bgh7 Rf8 Qg6 Ng8 Bd2 Bb6 Bf4 Nde3 Bg3 Ng4 Rd1 Be3 Rd6 Q2d4 Re6 Nh8 Bd3 Rf3 Bf5 Nf7 Qc5 Ne7 g8B Qf6 Qe5 Qg7 Rc6 Ng5 Bd5 Nf7 Rb6 Ng8 Re6
5B1Q/b2b3Q/1qp4N/3Rqnnn/1N5p/kpN1Q3/1r1N1NRb/b3nK2 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 fxe4 f5 d5 Nc3 dxc4 Nb1 g6 h4 Be6 f6 Kd7 Be2 Ke8 Bg4 Bc8 Bf5 gxf5 g4 b5 g5 Ra7 g6 Ra3 Qa4 Rg3 Qd1 Rg5 hxg5 Bg7 Rh2 Bh6 Rh1 Bf8 a4 Kd7 d4 Kc6 a5 h5 g7 e5 f7 h4 d5+ Kc5 a6 b3 g6 Kb4 d6 c6 d7 f4 a7 c3 a8Q b2 Ra7 c2 Qf3 e3 Nc3 b1Q Qg3 e2 Qf3 e4 Qg4 f3 Qg2 f2+ Kd2 e1B+ Ke2 f1N Qf3 e3 Qf2 Qf6 d8Q Nd7 Qc7 Bc5 f8N Nd2 Nh7 Nf3 Nh3 Ne7 g8N Ng5 g7 Qe5 Ngf6 Nf5 Nfe4 Nf6 g8N Bd7 Rg1 Nh5 Nh6 Rb8 Ra5 Ba7 Rg2 Rb6 Qf4 Bg3 Qh8 Bh2 Nhf2 Qb3 Bb2 c1B Kf1 Rb8 Ba1 Bb2 Nhf6 Rb6 Qf3 Rb7 Nd2 e2+ Ke1 Rb6 Qe3 Rb7 Qcc8 Rb8 Qcg8 Rb6 Qgh7 Rb8 Na4 Ka3 Nd5 b4 Rc5 Rb5 Nac3 Rb8 Nh1 Rb5 Kf2 e1N Kf1 Qa4 Nf2 Qa6 Qf6 Qb6 Qfh8 b3 Nb4 Ra5 Rd5 Rc5 Ncd1 Rc1 Nc3 Rc2 Na4 Bd4 Nc3 Rb2 Nhg4 Qf6 Na4 Rc2 Nh6 Bde5 Bd4 Qe6 Bc5 Ba1 Bd6 Rb2 Nc3 Qe5 Bf8
2R1n2k/1p3qpQ/1N1Bb3/B1p2B2/KQR2rbq/1n1pR2r/2Rq4/R3r3 b - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 g6 hxg6 Qd2 g5 Qd1 g4 e4 Bf5 f4 Na6 d5 Rh4 Nc3 Qf6 Nce2 Bc8 Nd4 exd4 e5 Nb8 e6 Rh8 Bd3 Bd6 Bf1 Be5 fxe5 Qd8 Kd2 Kf8 Kc2 c5 a4 f5 h4 g3 d6 f4 h5 f3 d7 f2 a5 c3 Kb3 g2 h6 c2 e7+ Kf7 e8R d3 h7 Qf6 d8B Ra7 a6 Be6+ Ka4 b3 Ne2 g1R Rh2 b2 Bf4 b1B Nc3 c1Q Qb3 Bc4 Qb4 Qh4 Bh3 f1Q Rc2 Nc6 Nd5 Bba2 Nb6 Na5 Bf5 Nf6 Bg3 Ra8 a7 Be6 Bc7 Rb8 a8R Qd2 Rc4 Rd8 Rc8 Nb3 Bd6 Rf8 h8R Qff2 Rh5 Kg8 Re7 Qf3 Be1 Ne8 Rg5 Qfh5 Rg2 Kh8 Rf2 Qf7 Re2 Bd5 e6 Bf3 Rg2 Bg4 Rf2 Qf4 Rfc2 Rh1 Bd2 Rh3 Bc3 Nf6 Re8 Qd2 e7 Rd7 Red8 Rc7 e8Q Re7 Qc6 Re5 Re8 Re1 Re3 Ne8 Qe4 Kg8 Qe6 Kh8 Qg6 Qe6 Be4 Rf4 Bf5 Qf7 Qa3 Qf8 Ba5 Qf7 Qb4 Nd4 R4c3 Be6 Rc4 Nb3 Qh7+
4Q3/k1pb4/1r2p3/RbbR1NNn/1p2q2B/1bN2rrQ/1K2N1p1/Q3n2N b - - 0 1 illegal: No possible last move, all moves rejected
3R1N2/q1qbp3/npB1N3/2q4n/B1prpk1N/2B5/3nrq2/KNNQ2Q1 b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 g5 c4 f5 a4 fxe4 Ra3 d5 Rg3 dxc4 Rg4 Bg7 f5 Be5 g3 Bf4 gxf4 Nd7 Rh4 g4 Rh6 Nb8 Rg6 hxg6 h4 Kf7 d4 Kf6 Kd2 c5 Kc2 b3+ Kb2 c3+ Ka1 c2 a5 g5 a6 b6 a7 g3 h5 g4 h6 g2 h7 g3 d5 Na6 d6 Be6 d7 Qf8 d8N Qf7 Ne2 g1Q Bd2 g2 Nc1 Bd7 Bb5 Qf2 Ba4 g1Q Ne6 Rd8 a8B c4 B8c6 b2+ Ka2 Qc5 Bc3+ Qe5 Rh2 Qc5 Rd2 Qf8 Rd4 Qc7 Qg1 Bc8 Rd2+ Rd4 Qd1 Bd7 Qg1 Kf7 f6 Qfb8 Qd1 Kg6 f7 Kf5 f8N Qba7 Ng6 Nf6 Qg1 Rd8 h8Q Nh5 Rd1 Rd2 Qhd4 Rh2 Rd2 Re2 Qd1 Kg4 f5 Kg3 f6 Kf3 Nd3 c1Q f7 Qc2 f8N Kg4 Nc1 Kf5 Na3 b1N+ Ka1 Kg4 Rd3 Nd2 Nb1 Kf5 Nh4+ Kg4 Ng7 Kf4 Q4g1 Bh3 Rg3 Rd4 Rg6 Bd7 Rd6 Qd3 Rd5 Qe3 Rd6 Qf2 Rd5 Bh3 Rd8 Bd7 Nge6+
Qn4b1/n7/b1NQ1q2/1Q2Q1Qn/p1Bpp1R1/b2r1pN1/2Kb1R2/R2n2k1 b - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 d4 fxe4 h4 Ra6 f5 g5 a4 bxa4 h5 c5 Bf4 gxf4 g5 Rg6 hxg6 cxd4 Kd2 e5 b4 Ke7 c4 Kd6 c5+ Kd5 f6 h5 b5 e3+ Kd3 a3 b6 h4 c6 a2 c7 h3 g7 h2 g6 e2 f7 e1B b7 a4 Qe2 Ba3 f8Q Bd2 Qd1 Nf6 g8R Nh5 g7 Qf6 Kc2 Ke4 Bh3 Ke3 Bg4 Kf2 Nf3 d5 Be6 Kg2 Re1 h1B Nc3 Kf2 Qb1 d3+ Kd1 d4 Ne2 Bg2 Ng3 e4 Re3 Bf1 Bc4 Be6 Ne5 Kg1 Qd6 Rh6 Rf8 Bg8 c8Q Rg6 Qb5 Rg5 Nf5 Rg3 Nc6 Rf3 Re2 Re3 Rf2 f3 Rc1 a1N Ng3 Nb3 Ra1 Na5 Qcd8 Be6 g8Q Bd5 Qg5 Bg8 Ne7 Nac6 Qge5 Bd5 Rg8 Na7 Rg4 Bg8 Qda5 Be1 Qg5 d2 Nc6 Rd3 Kc2 d1N Qbe5 Bd2 Qab4 Na6 b8Q Be2 Qa8 Nb8 Bf7 Re3 Qbc5 Ba6 Qb5 Rd3 Bc4
N2r4/1k1Qr1R1/1q1Q1K2/b1pqpn2/nbN1RpN1/2QBp2n/2N3p1/1N6 b - - 0 1 legal: proof: f4 d5 g4 b5 a4 bxa4 b4 g5 e4 dxe4 c4 h6 b5 Bb7 b6 Bc6 Bb2 Bb5 cxb5 Na6 Bf6 gxf4 g5 Nb8 g6 Qd4 Bh4 Qd8 Bg5 hxg5 Ke2 Kd7 d4 Kc8 h4 f5 g7 a5 d5 e3 Kf3 a3 h5 a4 h6 a2 d6 a3 h7 Nf6 g8N Nh5 d7+ Kb7 Bd3 Na6 Nf6 Ra7 Ng4 Nc5 Ne2 Na4 Rg1 e5 Qd2 c6 Qc3 Bb4 Nd4 c5 Nc2 Qg8 d8Q Qd5+ Be4 Re8 h8N Ra8 Nf7 Re7 Qe8 Rd8 Nd6+ Kb8 Nc4 Kb7 Kg2 f3+ Kh3 f2 Bd3 f1N Rg2 Nfg3 Qd7+ Kb8 b7 Nf4+ Kh2 Ka7 b8N+ Ka8 b6 Nh3 Na6 f4 Nc7+ Kb7 Rg1 Nf5 Na8+ Kb8 Nh6 g4 b7 Ka7 b8Q+ Ka6 Be4 g3+ Kg2 Ba5 Kf3 Bb4 Kg4 g2 Rd1 Ba5 Rd4 Bb4 Bd3 Ba5 Nbd2 Bb4 Rd1 a1Q Nb1 a2 Re4 Qb2 Kh5 a1B Kg6 Ba5 Qbd6+ Qb6 Ng4 Bb2 Kf6 Ba3 Rh1 B3b4 Rh2 Ng5 Rh7 Nh3 Qe8 Ka7 Rg7 Kb7 Qd7+
2B3kQ/p1Npbnp1/q1RB4/B1R1Rp1K/2r1pQ2/3p4/rbR1Rn2/4b3 b - - 0 1 illegal: No proof kernel
2K5/N3qr1Q/1bB1kbpN/qnq4b/1n1N2B1/n6N/1N1Rr1p1/N1r4N b - - 0 1 legal: proof: b4 b5 e4 c5 a4 e5 axb5 h5 g4 hxg4 d4 cxd4 Ra6 f6 Rd6 d3 Rd4 Nc6 Bf4 exd4 e5 Nb8 e6 Qb6 Bd6 Qd8 Be5 fxe5 Kd2 Ke7 f4 a5 c4 d5 h4 a4 b6 g3 b7 e4 c5 a3 h5 a2 h6 a1Q c6 g6 c7 g2 f5 Qd7 f6+ Kd6 f7 Qa7 h7 Ke7 b5 Kd6 e7 Ke6 e8N Qa1 b6 Bb4+ Nc3 Qa3 Nh3 Ra7 Qh5 Qb5 Nf6 Nd7 b8N Ne5 b7 Be7 Na6 Qac5 b8N Qa5 Ng4 Nf6 Nc6 Re8 h8N Bd7 c8B e3+ Kc1 d2+ Kb2 d1N+ Kb3 e2 Na4 e1B Ngf2 d3 Nb2 d2 Bb5 d4 Nab4 d3 Qh7 Nc3 Nc2 d1R Na1 Rc7 Na7 d2 Bc6 Nb5 Rg1 Nc4 Nh1 Nca3 f8N+ Kf5 Ne6 Rc1 Rf1+ Bf2 Nf7 Nd5 Rd1 Bf6 Nh6+ Ke5 Ng7 Bg4 Ngf5 Bh5 Be6 Rf7 Bc8 Nb4 B8d7 Qd8 Ka4 Qde7 Ka5 Be3 Nh4 Bd4 Bg4 Kd6 N4f5+ Ke6 Rf1 d1Q Rf2 Qe1 Rd2 Nbc2 Ka6 Bf2 Rd7 Qa5+ Kb7 Nb4 Na4 Bg3 Nb2 Bc7 Rd5 Rd8 Rd1 Rd2 Kc8 Re2 Rd2 Bb6 Nd4+
3N2nQ/5Rr1/4n1R1/3nNr2/1Qnbn1K1/nNRN2n1/4k1br/1B1Q2n1 b - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 a4 a5 f4 e5 bxa5 exf4 a6 g5 a5 gxh4 Ba3 Qb6 Be7 b4 axb6 Bh6 Bf8 Bxf8 Kf2 Ke7 Kf3 Ke6 c4 Kf5 g3 d5 b7 h5 a7 d3 c5 d2 c6 h3 c7 b3 e3 b2 Ra6 h2 Nc3 b1N Ra4 h4 Nb5 d4 Ra1 d3 Ra2 h3 Ra1 Bc5 Qb3 d1N Bg2 d2 Ne2 Ndc3 Bf1 d1N Nc1 Na3 Bd3+ Ne4 Qb2 Nd7 b8N Nc3 Bb1 Nd5 Nc6 Nf8 Nd3 Bd4 Nce5 Ne6 Qb4 Bb7 Rf1 h1N c8Q h2 Qc1 Nhf2 g4+ Kg5 Ra2 h1N Rc2 f5 Rc3 Nh3 Rf2 Kh4 g5 Nhg3 g6 Bc6 g7 Ng1+ Kg2 Rc8 a8N f3+ Kh2 f4 Nac7 Bb7 Rf1 f2 Kg2 Nf8 Ne6 Rc7 Nd8 Ne6 Kh2 Bc6 Kg2 f3+ Kh2 Nge7 g8R Bb7 Rg6 Ng8 Qc5 Rg7 Qb4 Nd2 e4 Ndc4 Nc7 Kh5 Na6 Rhh7 Nac5 Ba8 Rd1 f1R Nb3 f2 Re1 Rh6 Re3 Kh4 Rf3 Rh5 Rf7 Rf5 Nf4 Re1 Nfd3 Re2 Nf3+ Kh5 e5 Ne4 Kg2 Nf8 e6 f1N+ Nf2 Bc6 e7 Ne6 e8Q Nfg3 Ne5 Rd2 Rh6+ Kg5 Rg6+ Kf4 Qef8 Nh6 Qh8 Ng8 Nd3+ Ke3 Ne5+ Ke2 Nfd3 Nf3 Kh3 Ng1+ Kg4 Nde7 Nb7 N4c5 Bc2 Ke3 Qb1 Rh2 Qd1 Bg2 Nd8 Nce4 Bb1 Nd5 Qc1+ Ke2 Qd1+
n3Q3/pnq1B3/1QrnBNn1/3Rbr2/1q4B1/2N1r2B/1Q1N1k2/4q1nK b - - 0 1 legal: proof: d4 g5 a4 c5 h4 gxh4 c4 e5 f4 exf4 b4 cxd4 a5 d6 Ra4 b5 axb6 Bf5 b7 Na6 Ra3 Rc8 Rc3 Rc5 b8Q Be4 Qc8 Ba8 Qxa8 dxc3 Kf2 Ke7 g4 Ke6 Kg2 Ke5 e4 h5 g5 f5 g6 h3+ Kh2 f3 g7 h4 b5 c2 b6 f4 b7 f2 b8Q f3 Qb6 d5 Qb4 d4 Qbd2 d3 Qh6 Kd4 e5 d2 e6 Ne7 g8N Bg7 Qb8 Rc6 c5 Ng6 e7 Nc7 e8B Na8 Qh7 Ke3 Bd3 f1R Nh6 f2 Bb2 c1N Be2 Nb3 Ba6 Na5 Nf3 Nb7 Qc2 d1Q Ba3 Qe1 Bd3 Qb4 Bf7 Re8 Qh8 Re7 Qd6 Qc7 Nc3 Bd4 Rg1 Be5+ Kh1 h2 Bf5 Re6 Bg4 Re8 Kg2 h1N Ng8 Ng3 Nd2 Ne2 Qb2 h3+ Kh1 h2 Nf6 Re7 Bfe6 Re8 Kg2 h1N Qd8 Re7 Qhe8 Nhg3 Rh1 Nf5 Rh5 Ng1 Kh1 Nfd6 Rg5 Qc8 Qb6 Qc7 Bh3 Rc1 Bhg4 f1Q Rh5 Qe1 Rf5 Bd4 Rd5 Kf2 Bh3 Qd7 Beg4 Re3 Be6 Be5 Beg4 Rc7 c6 Qh7 Be6 Rf7 c7 Rf8 c8B Qc7 Ncb1 Rc6 Nc3 Rh8 Bg4 Rh5 Bce6 Rf5 Nh7 Qd4 Bc5 Qb4 Nf6 Nc8 Bf8 Ncd6 Be7
3RB3/3R1Q2/1k2N1bn/n1r1br2/4R2Q/q2b1RnN/3p2pn/n1QKN3 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 cxd4 Bb2 f5 exf5 axb4 Ba3 b5 axb5 bxa3 c4 e5 f4 g5 h4 d5 b6 Kd7 c5 Kc6 f6 d3 f7 a2 h5 d2+ Ke2 g3 f5 d4 b7 g4 f6 e4 h6 d3+ Ke3 g2 h7 g3 Qe1 d1B Kd2 e3+ Kc1 e2 Rh3 Bc2 Na3 Bg7 f8Q Bf5 f7 Qa5 Qf2 Bb1 Nc2 e1N Kd1 Nf3 Ne1 d2 Bb5+ Kc7 c6 Qa3 Q2c5 Nh6 Qc1 Kb6 c7 Nc6 c8R Nh2 Rd8 Bg6 Rd7 Bbd3 Ba4 Rg8 h8Q Na5 Qe7 Rac8 f8N Bc3 Ne6 Rc5 Qf7 Be5 Rh4 Rb8 Re4 Rf8 Nh3 g1N Qhf6 g2 Qh4 Ne2 b8R+ Ka6 Rbd8 Ng3 Rb1 a1N Bb5+ Kb6 Rb3 Bc4 Rf3 Bd3 Qh7 Rf5 Qf7 Nc2 Ra7 Na1 Be8 Bc3 Rc7 Be5 Rcd7
RBr5/1kQ1N3/7n/R3R3/n1rnbKNQ/4p1p1/1rQ3pQ/1N2qbr1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 b4 e6 b6 a6 b5 Qc7 b7 Qd8 b6 Bd6 Bb5 axb5 Ke2 Nc6 Kf1 Bb8 Ke1 Ba7 bxa7 Nb8 Ke2 d5 f4 Kd7 h4 Kc7 c4 g5 h5 b4 c5 d3+ Ke3 d2 c6 d4+ Ke2 g3 f5 d3+ Ke3 e5 h6 g4 f6 g2 h7 g3 f7 b3 f8N b2 Ra2 Qe7 Ra6 Bf5 Qc2 d1N+ Kd2 e3+ Ke1 e2 Kd2 e1R Ng6 e4 Nf3 Nc3 Nh2 Na4 Ra5 Rg1 Ke3 d2 Kf4 d1B Ng4 Be2 Rh5 Bf1 Rg5 Qe6 Ne7 Nh6 Rh5 Kb6 c7 Rc8 h8Q Nc6 Rg5 Bh7 Rge5 Nd4 Qf6 Rab8 a8R Bg6 Qh4 Bh7 Nc3 b1R Be3 Rb5 Nb1 Rb4 Bc1 Rc4 Bb2 Rg8 c8Q Bg6 Qd7 Rgc8 Ba3 Bh7 Bd6 Bf5 Ng6 Qe8 Qh7 Qe7 Qh8 e3 Qh7 Be4 Qh2 Qc7 Ne7 Qc5 Qh8 Qb4 Qf6 Qe1 Qg5 R8c7 Qgh4 Rbc8 b8Q+ Rb7 Nd5+ Kc6 Qa7 Rb6 Bb8 Rb2 Qc5+ Kb7 Ne7 Bd5 Qd6 Be4 Qc7+
5Qn1/1Q6/1n1qNbk1/b1q3R1/1n1NpR2/6bp/2bKQn1p/1R3BNR b - - 0 1 legal: proof: c4 a5 e4 d5 b4 dxc4 a4 axb4 e5 b5 e6 b3 Ke2 b4 Ke1 fxe6 Na3 e5 Nb1 e4 h4 g6 h5 Nc6 Bb2 Rb8 Bf6 Rb5 axb5 Nb8 Bh4 g5 g4 gxh4 g5 Nf6 g6 Rg8 h6 Rg7 hxg7 Ng8 Nf3 h6 Ng1 h5 f4 c5 d4 e5 b6 b2 f5 c3 d5 c2 f6 c1B d6 h3 b7 h4 Qe2 c4 Qf3 c3 Qe2 c2 Qd1 e3 Rh2 b3 Bb5+ Nc6 b8Q e2 Qd2 Be7 Na3 b1Q Qd1 b2 Nf3 Bf4 Qa8 c1N Rf2 h2 Qa7 h3 Ng1 Qc2 Qb7 Bg3 Rb1 Qc5 Kd2 Nd3 Rf4 Nf2 Nc2 Bf5 Nd4 Bc2 Ba6 e4 Bc4 Qb8 f7+ Kd8 f8N Ke8 Nfe6 Bf6 d7+ Ke7 Bd3 Nb4 d8R+ Qbc7 Rd5 Ke8 Rg5 e1B+ Ke3 Q7c6 Bf1 Q6d6 Qe2 Bc3 Re1 b1N Rc1 Na3 Rb1 Ba1 Kd2 Nc4+ Ke1 Nb6 Kd2 Nh6 g8Q+ Qf8 g7 Bc3+ Ke3 Be1 Qh8 Ng8 Qh6 Qfe7 Qh8 Qed6 Qh6 Ne7 g8R+ Kf7 Ra8 Bc3 Raa1 Be1 Rgf5 Bc3 Qf8+ Kg6 Rh5 Ng8 Rd5 Nbd3 Rh5 Ba5 Rd5 Nb4 Kd2 Be7 Rg5+ Kh7 Nf3 Qcd5 Rc1 Ng4 Rab1 Nf2 Bg2 Q5e5 Rh1 Qec5 Qd5 Bf6 Bf1 Qc8 Ng1 Qcc5 Rgf5 Kg6 Qb7 Bg5 Re5 Bf6 Rg5+
nB6/1Q1K2Q1/1bR4n/Qk2p3/p1R1Q1r1/2n1N3/r1p1p1Br/2b2RqB b - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 b6 fxe4 Nc3 g6 Nb1 g5 h4 gxh4 b4 a5 b5 Ba6 bxa6 Ra7 g4 Bh6 Nc3 Ra8 Nce2 Bf8 Ng3 hxg3 Ke2 Kd7 Ke3 Kc6 Kf4 h5 Kf5 e3 Ke6 a4 f4 e2 d4 c3 d5+ Kb5 d6 c5 f5 g2 d7 h4 g5 h3 b7 c2 g6 h2 f6 c4 g7 c3 f7 Ka5 a7 Rh3 Qd5+ Ka6 Nf3 g1N Bf4 c1B Nh4 c2 Ng2 Nh6 g8Q Qc7 d8R Qc5 Rc8 Nf3 Qg4 Nd2 Rc6+ Kb5 Ne3 Nb1 Bg2 Na6 Bb8 Nc3 Kd7 e5 Qge4 Nc7 Qdd4 Be7 f8Q Bd8 Qg7 Rh5 Rf1 h1R Ra3 R5h2 Qdd5 Rg1 Bh1 Rg4 Qdf7 N3d5 Rc3 Qb6 R3c4 Nc3 Nf5 Qg1 Ne3 Ne8 Bc7 Rc8 Bb8 Bb6 a8B Nc7 Ba7 Rg6 b8Q Rg4 Qb7 Rf8 Qe7 Rf3 Bb8 Rfh3 Qa7 Rf3 Bb7 Na8 Rc8 Rff2 Nd1 Bbe3 Ke6 Rgg2 Qeg6 Rg4 Bbg2 Na2 R8c6 Rf3 Qeb7+ Bb6 Qe4 Ra3 Kd7 Nc3 Ne3 Ra2 Qa5+
1q1Nb3/Q1R5/3n1bq1/BrQ2R1R/K1Q2n1n/2Qr3b/1b1B2B1/2r1kq1b b - - 0 1 illegal: No possible last move, all moves rejected
K1Nnq1R1/1Q6/b2k3n/5b2/3rnR1R/1Q1NNbQq/3B4/R1rrrrr1 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 Kd3 Ke7 Ke4 f1R Kd5 b5 a4 g5 e4 b3 h4 f2 c4 b2 f5 b4 h5 b3 h6 d3 h7 d2 e5 g3 c5 g4 a5 g2 a6 g3 e6 Nc6 a7 Qe8 Rh4 Ba6 Qg4 d1B Ne2 g1R Na3 b1N Nc4 b2 Ne3 g2 Bd2 Rc8 a8Q Nd8 c6 Nh6 c7 Nc3+ Kc5 b1B Kb6 d5 Ka7 d4 f6+ Kd6 f7 d3 f8R Rh1 e7 g1R Qb7 Ne4 Nc1 Bf3 Rf4 Re1 Qb3 f1Q Qg3 Qh3 Qb7 Rg8 h8Q Rg4 Qg8 Rgf1 Qgb3 Rhg1 Ba5 d2 Nd3 d1R Bc3 Qb5 e8R Bc2 Rg8 Qe8 Ne5 Nf2 Ba5 Bf5 Bd2 Ne4 Nd3 Rb8 Qa8 Rb4 Qb8 Rd4 Ka8 Rh1 Q8b7 Rc1 Qh2 Rgg1 Qf2 Red1 Qg3 Rfe1 Qg7 Rgf1 Qg3 Rhg1 c8N+
3n3N/KQbr2RB/4Q3/1brr2N1/N2k4/nnbrp1r1/Q3B3/q1Qq2B1 b - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 g4 c5 e4 cxd4 a4 gxf4 g5 b5 axb5 fxe4 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 Kf7 h4 Ke6 c4 Ke5 g6 a5 h5 d5 g7 g3 c5 d3 Kc3 d4+ Kc4 e3 c6 g2 Kc5 f3 b6 e2 c7 e1B b5 a4 h6 f2 b7 a3 Kb6 a2 h7 a1N Qf3 d2 Rh2 d1R Qh3 d3 Ba3 d2 Qg4 Ra5 Qe6+ Kd4 Bd6 Nh6 g8B Nf7 Qh3 e5 Qa3 e4 Qh3 e3 Bc4 f1Q Qe6 Bd7 Nc3 Ne5 Na4 Nbc6 b8Q Nb3 Nh3 g1R Qa8 Rg3 Be2 Nc4+ Kb7 Qg1 c8Q Na3 b6 Rc5 Rg2 Qf1 Bc7 Bd6 Ng5 Qdf6 Rg1 Nd8+ Ka7 Bb5 b7 Qg7 b8Q Qe5 Ba5 Bc7 Qbb7 Rd5 Rg2 Rc1 Bb4 d1R Bd6 Rcc5 Rg1 Bc3 Rg2 Rf3 Rg1 Qf6 Bh2 Rg3 Rg2 Rd3 Bg1 Be5 Qcc6 Qa1 Qcc8 Qff1 Qcc6 Qfd1 Qcc7 Ba5 Qcc8 Rd7 Qcc6 Rcd5 Qc1 Bc3 Ne4 Rg4 Qc8 Bb4 Nac5 R5d6 Na4 Ba5 Q8c2 Bc3 Qa2 Rg5 Bf7 Rhg8 h8N Bh2 Rg3 Rc5 Bg6 Rdd5 Bh7 Rg4 Rg2 Bc7 Rg3 Rh4 Rg8 Rg4 Ng5 Rg3 Rg7
2k2n1b/1N6/RrRr2R1/1nN2q1b/qR2b3/b1QNQ3/Knpr2q1/5QB1 b - - 0 1 illegal: No possible last move
1qkn4/3Q2R1/rr1RBK1Q/nrq2nB1/b4p2/2N4q/2B1b1Rb/2R3bQ b - - 0 1 illegal: No possible last move, all moves rejected
1rk2R2/rq2b2p/1bnq4/Q3qQ2/1Rn1r3/2Q1Bq2/Nb1R1n2/1Q2KNN1 b - - 0 1 illegal: No possible last move
1n4Rb/5p2/1qB3B1/Q1bRr2N/BR3bn1/b2nr1n1/2K1n2B/krQ1Q3 b - - 0 1 legal: proof: c4 e5 f4 exf4 b4 d5 h4 dxc4 g3 a5 g4 axb4 h5 Bf5 h6 Bg6 Qb3 Bh5 Qc2 Qf6 Qd1 Qd8 gxh5 Bc5 Nc3 Nd7 Nd5 Bf8 Ne7 Nb8 Ng6 hxg6 e4 Kd7 d4 Kc6 Kd2 Kb5 a3 c5 e5 b3 e6 Ka4 d5 b5 d6 c3+ Kd3 g5 d7 c4+ Ke2 b4 h7 c2 Kd2 c3+ Kd3 g4 h6 g5 e7 f3 e8B f2 Be2 f1N Rh4 g3 Bh5 b2 Qd2 Kb3 a4 b1N a5 g2 a6 g4 a7 g3 Qe3 Qb6 d8Q Nf6 Rf4 Ng4 Nh3 g1B Qd7 g2 Qed4 Ng3 Qe4 Bgc5 Qc8 g1B Bg6 Bgd4 Ra5 Bf6 Be3 Kb2 Ba4 c1B Bg1 c2 Bh2 b3 Qe1 Ka1 Rb4 b2 Nf4 Nc3 Nh5 b1R Qa6 Rg8 h8Q Nce2 h7 Bf4 Qb5 c1N+ Kc2 Bb2 Qhc3 Nd3 h8R Bg7 Qa6 Re8 Rg8 Bh8 Qc1 Re7 Q3e1 Ba3 Rab5 Re3 Qa5 Be7 Rd5 Bc5 Re4 Nd7 Red4 Rae8 a8B R8e5 Rb4 Nb8 B8c6
1bbrnrqk/4B1r1/r1R3p1/5bRQ/2Qb4/Q1B2Bqr/5N1R/1QK2n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 a5 b4 f5 c4 Kf7 e4 d5 h4 a4 h5 d3 e5 f4 b6 a3 h6 d4 b7 f3 h7 f2 b5 a2 c5 Nf6 b6 Nc6 b8B Ne7 b7 Ra6 c6 Ned5 c7 Ne8 Be2 f1R Rh5 Ne3 Ba7 Bd6 Nh3 g1Q b8Q g2 e6+ Kg6 e7 Rff8 Bb2 Nf1+ Kc1 d2+ Kc2 Kf6 Rc1 a1B Nf2 Bg3 Re5 d3+ Kb1 Qd5 Bc3 Qg8 Bc5 Bh2 Qc2 d1B Bf3 d2 Rg5+ Be5 Qd3 Ba4 Qb4 d1R Qa3 Bad7 Qc4 Rd5 Rc2 Bf5 Kc1 Rd8 Qg4 Qh2 B5b4 g1R Bd6 Bb7 c8Q Qg3 Qcc4 Bbc8 Bc5 g6 B5b4 Kg7 Bc5 Rh1 B5b4 Nd6 e8Q Rh3 Qeb5 Ne8 Be7 Rd7 Qb1 Rda7 Bd2 Bad4 Bc3 Bd6 Re2 Bb8 Re6 Qf7 Rc6 Rhg8 Qf4 Kh8 Qfe4 Ra8 Qg4 Rg7 Qab2 R8a7 Bd6 Rh4 Qc5 Qg8 Qba3 Rad7 Qc4 Rd8 Bc5 Rgf7 Be7 Kg7 h8R Rh6 Rh5 Rh7 Rh2 Rh4 Rh5 Rh3 Rg5 Kh8 Qge4 Rfh7 Qg4 Rg7 Qh5+
1B2Q1qn/1r4p1/kr1QB1r1/b2B4/1n2b1RK/1B4R1/1N1q3R/1qq1r1Qq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 e4 d5 c4 Kd7 b4 Kc7 h4 Kb6 e5 f5 h5 a5 e6 d3 h6 f4 e7 f3 e8B d4 h7 a4 Nh3 g1Q Ra2 g2 Bf7 a3 Rh2 Bb7 Bf4 Be4 Bd5 Nc6 Nf2 Qh1 Bb8 g1R c5+ Kb7 b6 Ra6 b5 Nh6 Re2 a2 Re3 a1R Qb1 Bd6 Nd1 d2+ Kf2 d3 Nb2 d1Q Rh4 d2 Bfc4 Bf4 Bb3 Rg6 Rg4 Bc7 Rd3 Re8 h8R Nf7 Rh2 Re7 Re3 Qc2 Qg1 Qg8 Rc3 Bd8 Kg3 d1Q Kh4 f2 Rcg3 f1Q Rg5 Kc8 R5g4 Nb4 c6 Qdc1 c7 Nh8 b7+ Kd7 b6 Q2d2 Be6+ Kc6 c8B Kb5 Bed5 Qfd3 Bce6 Qdb1 Ba7 Ka5 b8Q Bc7 b7 Rb6 Qe8 Ka6 b8Q Bd8 Qe5 Reb7+ Qf6 Rd6 Qf8 Ba5 Bb8 Rdb6 Qe8 Qbc2 Rg5 Qf1 Bd7 Qfc4 Qc6 Re1 Qd6 Qb1 B7e6 Qcc1 R5g4
rR6/1q1n3B/6qB/2r2Rb1/B1pqbbkn/5RN1/1Qn3b1/nKQ1R1Q1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Ne4 g2 Ng3 hxg3 Qa4 Qf6 Qd1 Qd8 d4 Kd7 Kd2 Ke6 Kc2 Kf5 h4 a5 b4 c5 e3 g5 h5 c3 h6 c4 b6 a4 d5 g4 b5 a3 d6 a2 h7 Bb7 d7 Be4+ Qd3 Qc8 d8R Nh6 b7 Bd6 b6 Bf4 Re8 Nd7 b8R Qb7 Nh3 g1Q Nf2 g2 Rh3 g3 Rf8 Ng4 Nh1 f6 Rf7 Rc8 h8Q Rc5 Qg7 Qf2+ Bd2 g1Q Re1 a1N+ Kb1 g2 Qc2 Qh4 Qg8 Qh5 Qg7 Qg6 Bd3 Bg5 Qc1 c2+ Kb2 Bf4 Rf3 Kg5 Rff8 f5 Ng3 Qf2 Rf7 g1N Rf6 Kh4 Rff8 Bg5 Qg8 f4 Rf5 Ngf6 Qg7 Nd5 Qd4 Nb4 Qg7 Bd5 e4 Kg4 e5 Be4 e6 Qe3 e7 Qf2 Qd1 c1B+ Kb1 Nbc2 e8B Qd4 Qh6 Nf8 Ba4 Nd7 Rf2+ f3 Be3 Qa7 b7 Bd2 Rff1 Qaa6 Qc1 f2 Qh1 Nf3 Qg1 Nh4 Rf3 Bd8 Bh6 B8g5 Rd8 Bde3 b8Q Bef4 Qbb2 Qb7 Rb8 Rc7 Re2 Rc5 Rfe1 f1B Ref2 Bg2 Rff1 Bc6 R1f2 Qh5 Bh7 Be4 Rff1 Qg6 R1f2 Bc7 Rf5 Bcf4 Rf3
6B1/p3k3/K3Bq1N/2q4b/4RNrB/4QbQ1/nbQrrnnN/2Q1b1r1 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 f5 Kd3 g5 Kc4 f4 e4 d3 h4 f3 b6 d5+ Kb5 g4 c4 d4 h5 f2 b7 d2 c5 d3 h6 Nc6 b8Q Bd7 e5 Nf6 e6 Rg8 h7 Ne4 h8N Ke7 Qc2 d1B Qf4 d2 Ka6 Bf3 b5 d1R b6 Bg7 b7 Rd2 b8Q Be8 Nc3 Bh5 Bc4 f1N Nce2 Ne3 Nf7 Bb2 Nh6 Nf2 Rh4 Qd6 Qbb3 Rae8 Qbd3 Qe5 Qg5+ Qf6 Nf4 Nd4 c6 Ne2 c7 Nc3 c8B Na2 Nge2 g1B Nd4 g2 Qf1 Bd1 Nf3 g3 Nh2 Bdf3 Qe5 Rg4 Qec3 Rd3 Bd2 Rd7 Qfc1 Rd3 Be1 Rd2 Nf1 Bh2 Q3d3 g1Q Qg6 Kd6 e7 g2 B8e6 Bg3 Nh2 Qf1 Qa4 g1R Qac2 Ng2 Bg8 Qe2 Qg7 Qe3 Bce6 Qc5 Qgg6 Rd8 e8Q Re2 Qg5 Rd7 Qeg6 Ke7 Qe5 Rdd2 Qe3 Rg5 Rg4 Bh4 Qgd3 Ba8 Qg3 Bf3 Qe3 Rg6 Nd3 Rg7 Re4 Rg4 Nf4 Nd1 Qh3 Bg3 Bf2 Rh1 Bg1 Be1 Bf2 Rg1 Bh4 Nf2 Qg3
Kb3n1R/2R2RQ1/5nrp/nQQN3N/3r3R/2q4q/1qk1qBNr/r2r4 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 g5 f5 a5 g3 axb4 f6 g4 Kf2 exf6 Ke1 f5 Qd3 f4 Qd2 Ra3 Qd1 Ra8 Bg2 b6 Bf3 gxf3 g4 Bb7 g5 Bd5 h3 Bb3 Be3 Be6 Bc1 Bg4 hxg4 Qf6 Ba3 Qe7 Bc1 Qd8 Kf2 Ke7 e4 Kd6 c4 Ke5 a4 f5 a5 d5 g6 d3 a6 Kd4 a7 d2 e5 Kd3 g5 d4 c5 b3 c6 b5 c7 b4 c8Q b2 g7 b3 e6 Qf6 g6 Nd7 Ne2 Bd6 e7 Nf8 e8Q Bb8 Qg1 d1R Na3 b1Q Qed8 b2 Nc4 Kc2 Qdd7 d3 Be3 d2 Qc5 Qc3 Qdb5 Nf6 g8N h6 Ne7 Rg8 g7 Qc1 Nd6 b1N Nc4 Na3 Rh4 Q1b2 Ra2 Ra1 Nd5 d1R Ng3 Rd4 Nh5 Rad1 Qg2 Rh1 Ra1 Rh3 Rf1 Rh2 Ne5 Nc4 Nd3 Rh3 Qg3 Na5 Qg1 Rh2+ Qg2 Rh8 g8R Rh7 Rh8 Rg7 Rh7 Rg6 Rc7 Qc4 Ke1+ f2+ Ke2 Qcc3 Kf3 Nb7 Qg4 Na5 Ra1 f1Q+ Bf2 Qh3+ Qg3 Qb4 Re1 Qb2 Ree7 Qc4 Rf7 Qcc3 Ke2 f3+ Ke3 Ne4 Kf4 Nf6+ Ke5 f4 Kd6 Kd2 Bg1 f2 Ne1 f1R Bf2 f3 Ng2 Kc2 Qg5 Rfd1 Qe5 Nc4+ Kc6 Na5+ Kb6 Rg3 Qg5 Rgg4 Qg7 Rg6 Be1 f2 Ka6 f1Q Bf2 Nc6 Kb7 Qe2 Rc8 Bd6 Rcc7 Na5+ Ka6 Rd8 a8R Ra1 Ka7 Bf4 Rac8 Be5 Ka8 Bf4 Rc6 Bb8 R6c7 Rdd1 Nb6 R8d4 Nd5 N8d7 Rg8 Nf8 Rh8
2bQ1nbn/1N2KR2/Q2R1Qq1/8/R1r1n1B1/bB1b1pB1/3n2n1/qn3R1k b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Nb1 f5 Nc3 b5 Nd5 f4 Ne3 Ra6 Nd5 Rf6 Ne3 Rf5 gxf5 Na6 Ng4 hxg4 Bb2 Nb8 Ba3 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 a4 g5 c4 d5 e4 d3 a5 b3 a6 d2 c5 g3 h3 b4 c6 b2 f6 b1N a7 d4 a8B f2 f7 d3 c7 g2 Nf3+ Kg3 h4 g1N h5 g4 h6 b3 h7 b2 Ra4 Ne2 Qb3 d1B Qc2 d2 Rh2 Nf6 Qc3 Nbd7+ Ke6 Bb3+ Bd5 d1N e5 Ne4 Ne1+ f3 Nd3 Nbd2 Nc5 b1N Nb7 Ne3 Bh3 f1B Rf2 Ba3 f8R Qg5 Rf7 Ng2 Qd4 Rg8 h8Q Kh2 Qf6 g3 Bg4 Kh1 Qa1 Ba2 Bb3 Qg6 Qd4 Rg7 Qb6 Rh7 Qa6 Rh4 Bb2 Rh3 Bd4 Rh4 Bc5 Nf8+ Ke7 Nef4 e6 Bd3 Bb4 Rh5 Bd6 Rc5 Be5 Ne3 Bd6 g2 Be5 g1Q Bd6 Bd7 c8R Neg2 Rd8 Bc8 Be5 Rc4+ Rd6 Nh3 Bg3 Nhg5 Kd8 Qc1 e7 Qc3 e8Q Qa1 Rc7 Nf7+ Ke7 Nh8 Qd8 Qf5 Ke8 Qh7 Rf7 Qg6 Ke7 Rb4 Bd1 Bae6 Bb3 Rc4 Rg7 Bg8 Rh7+ Qh5 Rf7 Qg6 Rf1+
2K1k1qN/qn2N1Qq/4r2r/bQ1npRQ1/4bB2/4B1N1/q1B3np/3Bq3 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Ra2 fxe4 Rb2 b6 Rb4 axb4 a5 Ra7 axb6 Ra8 Ke2 d5 f4 h5 c4 b3 g4 h3 b7 e6 c5 d3+ Ke3 h4 Kd4 b2 Ke5 e3 b6 d4 f5 e2 f6 e1Q+ Be3 h2 c6 d2 c7 d3 g5 h3 f7+ Kd7 g6 Nf6 g7 Ra7 g8Q Rh6 Qc1 d1N Be2 d2 Nc3 b1Q Qg7 Na6 b8B Bb4 f8N+ Ke8 b7 Nc5 Ng6 Ba5 Nd5 Qa2 Nh8 Ra6 Ne7 Nd5 Bf3 Bd7 c8B Bc6 Ne2 Qf2 Re1 h1Q Ng3 h2 Re2 Qhe1 Bc7 Qd7 b8Q Nb7 Qc5 Qfg1 Rf2 Qd8 Bd6 Qb6 Be4 Qa7 Bc2 Rb6 Rf5 Ra6 Nh5 Qg6 Ng3 Qh7 Qb5 Qg1 Qg5 Rb6 Qc7 Qg2 Bf4 N1e3 Bc5 d1Q Bd4 Qe1 Bd1 Nd8 Kd6 e5+ Be6 Qgg1 Qb7 Ng2 Bde3 Nc3 Kc7 Nd5+ Kc8 Ra6 Qb8 Nb7 Qc7 Nh4 Neg6 Nb4 Nh1 Rh5 Qg4 Rh6 Beb3 Qgg3 Bbc2 Ng2 Qh5 Qg4 Ng3 Rb6 Qd3 Be4 Qb5+ Rc6 Qh4 Qg5 Qg4 Nd5 Qh5 Qf6 Qg5 Qf8 Qe2 Rf6 Qg7 Re6 Ne7 Qfg8 Qb5+
rQ6/QBpK1N2/3n2bQ/p1R4R/3R1Rr1/q2B2rk/1rn1bBqn/2r5 b - - 0 1 illegal: No possible last move, all moves rejected
Q1bb4/Rq1n2q1/2nR3b/2k5/B1Qqp1q1/3rR3/NBpB1K1Q/r4n1B b - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 g5 c4 dxc4 Nc3 h6 Nd5 gxf4 g5 h5 Nf6+ Kf7 Ng4 hxg4 Ra6 Ke8 Ra5 Kd7 Ra1 Ke8 b4 Kd7 h4 Kd6 d4 a5 d5 c5 g6 e5 h5 e3 g7 f3 h6 a4 b6 g3 h7 f2+ Ke2 a3 b5 c3 b7 e4 b6 c2 Bb2 c1B Rh3 a2 Qa4 g2 Qc4 Nf6 g8B Nc6 b8Q+ Qc7 b7 Nd7 Bf7 Be7 Be8 Bd8 Bc3 Rf8 h8B Rf3 Bd2 Ra7 Qa8 Ra6 Qa4 c4 b8Q c3 Qc4 c2 Bb2 Ra7 Qcb3 Kc5 d6 Qb7 Qg8 Nf8 d7 Ra6 Qh2 Ra7 Rb1 a1Q Qe6 Qa4 Ra1 Qd4 Ra2 Ra3 Rg3 Rd3 Ra7 Ra3 Qb3 Ra1 Qd3 Bg5 d8R Nd7 Nh3 g1Q Nf4 Qg7 Bg2 f1N Nd5 Be7 Ke1 e2 Bh1 Q1d4 Nc3 Bg5 Qa6 Rd3 Re3 Bf6 Qa2 Bg5 Kf2 e1Q+ Kg1 Qd1 Kf2 Qg4 Qc4+ Kb6 Na2 Bh6 Bbc3 Ba3 Bb2 Be7 Qg8 Kc5 Qf7 Nf8 Rd6 Bd8 Qe6 Ne7 Bb5 Nd7 Ba4 Nc6 Qc4+
2QQrn2/2KRq3/q2R4/1B2rbRQ/Q1pBn3/B3p1b1/1b1rr3/3k2nN b - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 g5 c4 dxc4 Nc3 h6 Nd5 gxf4 g5 h5 Nf6+ Kf7 Ng4 hxg4 Ra6 Ke8 Ra5 Kd7 Ra1 Ke8 Kf2 Kd7 b4 Kd6 h4 Kd5 d4 e5 b6 a5 b5 c5 b7 f3 Kg3 e3 h5 Ke4 b6 f2 g6 a4 d5 a3 h6 c3 h7 c4 d6 a2 g7 c2 d7 e2 Bh3 f1R Nf3 e1R Nd2+ Kd3 Ba3 c1B Qa4 Ke2 Ne4 Qe7 d8Q Ra5 Nf2 Nd7 b8B e4 b7 e3 Kf4 g3 Be5 g2 b8Q g1N Bd4 Bb2 Rd1 Ngf6 g8R a1Q Rg5 Ne4 Qbb5 Rg8 h8Q Bg7 Qb8 Nf8 Bd7 Re5 Bb5 Bf5 Rh6 Qa2 Rd6 Bf6 Rg3 Bh4 Qbc8 Qa1 Rd3 Rd1 Qh7 Rd2 Rg5 Re1 Nh1 Bf2 Qaa6 Kd1 Qh5+ Re2 Qa7 Nh7 Rd7 Re8 Qa4+ Kc1 Bb6 Nf8 R3d6 Qb1 Bbc5 Qc2 Bd4 Kd1 Qaa5 Qa4 Qb4 Qa6 Qa4+ Rc2 Rf6 Rc5 Re6 Rc6 Ke5 Bg3+ Kd5 Rb6 Rf6 Re6 Rh6 Qa7 Rf6 Re5+ Kc6 Qa8+ Kc7 Qa6 Qb4 Rd2 Rd6 Kc1 Qa5 Kd1 Qa4+
NB3RQq/b1n1QqQN/7q/1k3Npr/1Q2p1br/3rB2B/3rn3/1n5K b - - 0 1 legal: proof: f4 f5 d4 c5 b4 cxd4 e4 g5 g4 fxe4 a4 b5 axb5 h6 Ra3 Nc6 Rg3 gxf4 g5 Nb8 g6 Nf6 Rg4 Ng8 Rg5 hxg5 Kf2 e5 Kg2 d5 h4 Kd7 c4 a5 c5 d3 h5 f3+ Kh2 f2 b6 Kc6 h6 e3 h7 a4 g7 a3 b7 d4 Bb2 a2 Bh3 a1Q Qc2 f1N+ Kg2 e4 Ne2 d2 Be6 d1R Bc1 d3 Bh3 d2 Ng3 e2 Nc3 e1Q Nd5 Qa2 Nf6 Ne7 g8Q Kb5 c6 Nf5 c7 Nd4 Nf5 Na6 b8B Qh4 Rh2 Bd6 Kh1 Qf7 Rf2 Qh6 Qb2 Bc5 Qa3 Bd7 c8N Nc7 Nb6 Ne2 Rf3 Ra6 Na8 Ba7 Rf4 Rd6 Qg7 Rd3 Rf3 Rf8 h8Q Qde8 Qhh7 Rh8 Qhg8 Re1 Rf2 d1R Nh7 Nd2+ Rf1 Nb1 Be3 Ng1 Rf2 R1d2 Rf3 Ne2+ Rf1 Kc4 b5 Qc8 b6 Kb5 b7 Qce8 Nh4 Bg4 Qe7 Qef8 Rg1 Rf1 Nf5 Rf4 Rf1 Qhe6 Nf6 Rh5 Nh7 Qh6 Rc1 Ne8 Rc8 Nc7 Re8 Qff6 Rd8 Q8f7 Rf8 Ka4 Qg6 Qh8 Q6g7 Bf3+ Kh2 Bd4 Ba7 Rfh4 b8Q Bg4 Kh1 Ka5 Qb2 Bc5 Qa3+ Kb5 Bb8 Ba7 Qab4+
4r1QQ/1r3N1Q/r1NQ2N1/1k3pBr/2B2np1/1q6/b4n1R/K1bB1nrn b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 d5 e4 Kd7 c4 a5 Kc2 f5 Kb2 g5 h4 a4 h5 d3 b6 Kc6 h6 a3+ Ka2 d4 h7 d2 c5 d3 e5 g4 b7 Bh6 e6 Ne7 Rh2 Kb5 c6 Qd5+ Ka1 a2 c7 Ng6 e7 Qb3 e8Q+ Nd7 b8N Nf4 Qg6 Nf6 Nf3 g1R Nh4 g2 Be2 Be6 c8B N6h5 Nc6 Ng3 Bd7 Bf7 Be6 Nh1 Bd5 Rhb8 h8Q Rb7 Qgh7 Re8 Ng6 Re1 Be6 g1R Bf3 Re3 Be2 Rh3 Bc4+ Kb6 b5 Rh5 Nc3 Bg8 Qc2 d1N Qd2 Ne3 Ne4 Nf1 Ng5 Be6 Qd1 d2 Nf7 Kc5 b6 Bg5 Qc2 d1N Qd2 Ndf2 Bd1 Bd5 Q8g8 Be6 Qb2 Bh6 Qbh8 Bg5 Bd5 Kb5 Bc4+ Ka4 Bf3 Nd5 Ncd8 Ra7 b7 Qa3 b8Q Rb7 Bb3+ Kb5 Bfd1 Qb4 Kb2 a1R Qd6 Ra6 Kb1 Be3 Nc6 Bf4 Bb2 Bc1 Bf6 Nf4 Bg5 Qc3 Bbc2 Bb3 Bd3+ Qc4 B3e2 Ba2+ Ka1 Qd3 Bf3 Qc2 Bd5 Qb3 Bc4+
n6N/qbB1RnpQ/kr1n1NQN/r2r4/n3n1br/2p4N/2R4K/1QR5 b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Bg2 f5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qb3 Ra5 Kc2 Bf4 gxf4 Qe7 Kb2 Ra6 Qd1 Ra8 Kc2 Qd8 h4 Kd7 a4 Kc6 d4 Kb6 Kd2 f1N+ Ke1 c5 Kf2 g3+ Ke1 c3 e4 c2 h5 c4 h6 b3 d5 c3 d6 b2 a5+ Ka6 f5 b5 e5 g2 Kf2 b4 d7 b3 f6 Qc7 d8N Ng3 e6 Nf5 f7 Nd6 Kg3 f2 f8Q f1B e7 Bg4 e8Q Qa7 h7 Nh6 Bf4 c1N Ra2 Nhf7 Qg8 Nd3 Nh3 g1R+ Kh2 Bg2 Nd2 b1R Ne4 b2 Nf6 Bb7 Qc2 Rg3 Rc1 Nc5 Qe1 Rf3 Qg6 Rd3 Qg1 Nbd7 Qd1 Nc4 Bc7 Na4 Qh1 Rd5 Qhe4 Nfe5 Nf7 Ndb6 Nh6 Nd6 Qb8 Nef7 Qc2 Re8 h8N Ree5 Qg8 Rh5 Q8h7 Rh4 Qce4 Rb8 Qe1 Ra1 Qee4 b1N Rac2 Na8 Qef5 Kb5 a6 Nd2 Qe4 Qc5 a7 Ka6 Qb4 N2e4 Qb1 N4b6 Re2 Ra5 Rec2 Na4 Qa2 Bbc8 Bd8 Nc7 a8R+ Qa7 Qb1 Rb6 Rb8 Na8 Rb7 Rd1 Rd7 Bb7 Bc7 Rdd5 Re7
R3bn2/Kprn2Nk/1NrQ3Q/2q5/N5rq/rQ1prb1B/3r4/N5BB b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 Kd3 Kf8 Kc4 d5+ Kb5 g5 e4 Kg7 h4 d3 c4 b3 a5 g3 e5 d2 e6 b2 f5 g4 e7 g2 e8N+ Kh6 c5 g3 c6 d4 c7 d3 Kb6 Qe7 a6 Nf6 h5 Rh7 a7 Be6 c8B Bd7 Nc3 b1R+ Qb3 Rb2 Nge2 g1R Nd4 g2 Ng7 Be8 Na4 Rc2 Ba3 d1R Bc5 Rdd2 Rh3 Rc3 Nc2 Qe4 Rg3 Qh4 Na1 Rc4 Be2 f1R Bd1 f2 Bf3 Re1 Rg5 Ng4 f6 f1B f7 Nf6 f8Q Re3 Qd6 Be2 Bh3 Bd1 Bc6 Bf3 Bd4 Rgc1 Ra5 g1Q Bc5 Rg4 Ra6 Kg5 h6 Kg6 Bd4 Qgf2 Bd5 Rc7 Ra5 Rh8 h7 Rg8 h8Q Nd7+ Kb5 Nf8+ Kb6 Rac8 a8N Rc6+ Ka7 R8c7 N8b6 Qg1 Be6 N6d7 Bg2 Qc1 Bh1 Qc5 Ra6 Qf2 Qhh2 Qh4 Qhf4 Kh7 Qg5 Ree2 Bg1 Re3 Ra5 Rc4 Bh3 Rc3 Ne6 Rg7 Qf6 Rg4 Ng7 Rcc2 Qfe6 Ra2 Ra6 Ra3 Ra5 Bd5 Qh6+ Kg8 Ka8 Ne5 Qg5 Kh7 Kb8 Be4 Ra8 Bf3 Ka7 Ned7 Qgh6+
1B4Qb/r1pn3r/1Q1R1rbp/2n2Q1n/brqB3K/1BR3n1/1RR1k1N1/8 b - - 0 1 illegal: No possible last move, all moves rejected
3q1BRK/1r1rr1N1/Q1b5/1k2q1R1/N3RR1Q/4p1nQ/2n1pr1N/2rq3r b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e3 axb4 Bg2 e6 Be4 fxe4 g5 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Kf2 g4 Kf1 Ne7 Ke1 Ng8 Kf2 d5 Kg3 Kd7 a4 Kc6 h4 g5 c4 b5 f6 d3 h5 d4 h6 d2 h7 b3 a5 e5 a6 b4 a7 d3 f7 b2 f8Q b3 c5 Bd7 f5 Nf6 Qf3 d1R Ne2 d2 Qh6 Rf8 h8R Na6 Rh5 Nb4 Ng1 Nc2 Nc3 b1R Ra4 b2 Rg8 Re1 Qf2 d1Q Nf3 Qd4 Bf4 Rbc1 Nh2 b1R Qg6 Rc8 a8N Rb7 Nc7 Qd5 Ne6 Rcc7 Rd4 Be8 Na4 Kb5 Rc4 Rh1 c6 Rce1 Kg2 g3 Kh3 g2 Qh4 g1R Bg3 Rh7 c7 Re2 c8Q Rc1 Bf4 g4+ Kg3 Rff7 Bh6 Rf2 Rg5 Rfc7 Rd4 Rhe7 Rc4 e3 Rd4 e4 Bg7 e2 Bh6 e3 Re4 Nh7 f6 Rce1 f7 Rc1 f8R Qe5+ Rff4 Nf6 Bf8 Bd7 Qhh5 Be8 Kh4 Bd7 Qhh7 Nh5 Ng7 Be8 Qgh6 Bd7 Qa8 Bc6 Qh8 Rcd7 Qe6 g3 Qh3 g2 Qh7 Nd4 Qa6+ Kb4 Qh6 g1Q Qh7 Ng3 Qh6 Nf1 Kh5 Ng3+ Kg6 Qe1 Kh7 Qd1 Nb2 Kc5 Q6h4 Nc2 Kh8 Qg1 Qa8 Kb5 Na4 Qd1 Qa6+
2n3r1/4k2r/1nq2n1N/B7/1rR4Q/3Q1q2/NNKbpNpr/rR1R2nQ b - - 0 1 legal: proof: d4 c5 g4 cxd4 f4 h5 e4 hxg4 f5 b6 Bc4 a5 b4 axb4 Be6 fxe6 Na3 e5 Nb1 Bb7 f6 Bd5 Nc3 Be6 Nb1 Bf5 exf5 e4 Kd2 d5 c4 g5 h4 e5 a4 b5 c5 e3+ Kd3 e4+ Kc2 b3+ Kb2 d3 a5 g3 c6 b4 f7+ Ke7 h5 e2 a6 e1R c7 d2 c8R g4 h6 e3 h7 d4 a7 g2 Rc5 d3 Qc2 d1Q Rc4 d2 Nf3 g1N Ra2 g3 Qd3 g2 Ng5 Bh6 Ne4 Qb6 Nf2 Qf3 Ra1 d1R Bd2 e2 Nc3 Nd7 Rb1 Qbc6 Na2 Ndf6 f8N Rc8 a8N Rc7 Bc3 Bd2 Nb6 Rf1 Nfd7 Rde1 Rd1 Ra7 Kb1 b2 Kc2 b1N Ne5 b3+ Kb2 Rc7 Nf7 Na3 Ba5 Rc8 Na4 Rd8 Rcc1 Nc4+ Kb1 b2 Nh6 Re8 Kc2 b1R Nb2 Ra8 Rh4 Nb6+ Rc4 Ra1 Nc3 Ra4 Na2 Rb4 Ra1 Ke8 Rac1 Ne7 Rb1 Rg8 h8Q Ra7 Qh7 Nec8 Qh8 Rf7 Qh7 Ke7 Qh8 Nh5 Qhd4 Rh7 f6+ Ke8 f7+ Ke7 Qf4 Nf6 Qh4 Nh3 Qf5 Rh1 Qd3 Ng1 f8Q+ Ke6 Rc3 Rh2 Rc4 Rf1 Qg7 Re1 Qgg6 Ke7 Qgh5 Nd5 Qhd4 Nc3 Ra1 Ncd5 Rdc1 Rh1 Qh2 Ndb6 Qdh4 Nh3 Qg1 Rh2 Qh1 Ng1 Rd1 Bg5 Rd2 Rb1 Rd1 Bd2 Na4 R1b3 Rac1 Rb1 Nb2 Ra1 Rb1
1n2B1B1/K1n2qpq/N3b3/2n3Nb/1nrbk2q/2B1BN2/b2p4/Q1R2Q1Q b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a3 Ra5 a4 Rf5 gxf5 b5 Ra3 Qb6 Rc3 Qd8 Rc6 h6 Rg6 h5 Rg4 hxg4 Kd2 Kf7 Kd3 Kf6 h4 Ke5 c4 d5 e4 b3 c5 g3 f6 b2 a5 b4 h5 b3 a6 f2 h6 g2 f7 f3 a7 Nf6 a8Q Be6 h7 Nfd7 c6 Bc5 f8B Qh4 Be7 Rc8 Nh3 g1Q h8Q Qg6 c7 Qgh7 Be2 f1Q Qa1 f2 Nd2 b1N Bb2 Na3 Bg5 Bb6 Bc3 b2 Be3 Nc2 Rg1 b1B Nf3+ Kf6 Rh1 Ba2 Qdc1 Kg6 e5 Kf5 Rg1 Re8 c8N Nc5+ Kd2 d3 Na7 d4 Nb5 Rd8 Nc7 Rc8 Na6 Nb4 Bd1 Ke4 Bb3 Bf5 Bg8 Bfe6 Qe1 Ba7 Kc1 d2+ Kb2 d1B Ka3 Qc4 Qf1 d3 Rh1 d2 Rg1 Nb3 Ka4 Bd4 Rh1 Nc5+ Ka5 Be2 Kb6 Qb3 Ka7 Qd5 Nfg1 Bh5 Nf3 Qc4 Qe2 Rc6 Rc1 f1N Qf2 Nh2 Qf1 Ng4 Nh2 Nf6 Nf3 Bd7 e6 Nfd5 e7 Nc7 e8B Qf7 Qh1 Qhg6 Qh6 Qh7 Qg5 Bf5 Qgg2 Bfe6 Qgf1 Nb3+ Kb7 Rc5 Kb6 Rc4+ Kb7 Nc5+ Kb6 Bb1 Ka7 Ba2 Nhg5+
1r3Q1K/1pR1pQNQ/5q2/4kp1R/bq2bNrn/1Q1B4/2R2qr1/N1n3b1 b - - 0 1 legal: proof: c4 a5 f4 h5 b4 axb4 e4 d5 cxd5 Kd7 g4 hxg4 Bb2 f5 Bf6 fxe4 f5 Ra7 Bb2 Nc6 f6 Nb8 f7 Ra8 Bf6 gxf6 Ke2 Kd6 Ke3 c5 Kf4 e3 a4 f5 Kg5 e2 Kg6 e1Q h4 c4 d4 b3 a5 c3 a6 g3 a7 c2 h5 c1R h6 b2 h7 g2 Bd3 Rc6 Rh5 Qb6 Na3 b1B Nc2 Qeb4 Nh3 Bg7 f8Q Rc4 Qf7 Bd7 Ra2 Na6 Na1 Ba4 Qb3 Nc5 Nf4 Nf6 Rc2 Rab8 a8Q Rhg8 h8Q Nfd7 Kh7 Bf6 Qhg7 g1Q Qgf8 Rg7+ Kh8 Qf2 Q8g8 Nf8 Qh7 Kd7 d6 Rg2+ Qfg7 Kc6 d7 Kd6 d5 Bd4 d8N Be3 Qf7 Ke5 d6 Ng6+ Kg7 Nh4+ Kh8 Qc6 d7 Qe6 Qf8 Qf7 Nde6 Qf6+ Ng7 Rd4 Qf7 Nb3 d8R Nc1 Rd7 Re4 Rdc7 Ba7 Ne6 Reg4 Nf4 Bc5 Qa6 Bd4 Qac4 Ba7 Rd2 Bbc2 Qb3 Be3 Ba6 Be4 Bd3 Qg3 Nc2 Bg1 Na1 Qf2 Rdc2
1BK3BR/rn2rQ2/1Bnp3q/Rrbp1Q2/8/3q4/r1R1bkpB/Q1N4r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 d5 g3 d6 cxd6 Nd2 d5 Ne4 g2 Ng3 fxg3 Kd2 Ke7 Kd3 Kf6 Kd4 Kf5 h4 Kg4 Ke5 g5 c4 a5 b4 a4 c5 a3 c6 a2 c7 Ra5 b6 Nh6 h5 Rb5 b7 Nf5 h6 Bc5 h7 Qf8 Rh2 Nd6 Be3 Qh6 Bf2 Rg8 h8R Rg7 Qb1 Rh7 e4 f5 Bd3 f4 Ne2 Kf3 Nc1 g1Q Bd4 g4 Rc2 g2 Be3 Na6 b8B g3 Bf2 Bb7 c8Q Qd1 Qf8 g1R Qf5 g2 Bc7 Ra5 b5 Re1 b6 Nb4 Bb8 Bc8 b7 Rb5 Bc7 Rh1 b8B Nb7 Be3 Kg3 Bb6 f3 Bg5 f2 Bf4+ Kf3 Qb2 f1R Qb1 Qh3 Kf6 d6 e5 Qh5 e6 Nc6 e7 Rf2 e8Q Re7 Qf7 Rfe2 Be4+ Kf2 Qb2 Qd3 Qa3 Rd7 Ke6 Qg5 Qh3 Rd2 Bh7 Qh5 Bg8 Re7+ Kf6 Bg4 Qa4 Bf3 Qf5 Be2 Qa3 Rc7 Ke6 Qhh3 Qc3 Qh6+ Qcf6 Rc8 Kd7 Re8 Qc3 Re4 Kc8 Re7 Rb1 a1R Rbb2 Qe4 Ra2 Qd3 Ra5 Ra4 Qa1 Ra3 Rc4 Rda2 Rc2 Rb1 Rb5 Ra7 Ra5 Rb5 Bh2+
4R3/Nn2K1pq/bN6/qQnR4/p2k1q2/r4rpR/2Q1BbRQ/2r1r2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 a5 e4 f5 h4 d3 b6 d6 b5 d2 b7 a4 b6 g2 h5 f4 h6 f3 h7 g3 Ra2 f2 Nh3 g1R Be2 f1R Nf2 Re1 Na3 Ne7 Rh3 d5+ Kc5 d4 c4 d3 Qc2 d1Q Nh1 d2 Nb5 Qb1 Na7 d1Q Rb2 Rg8 h8Q Q1d2 Qh4 Qf4 Qh6 Nbc6 b8R Ba6 b7 Nb4 Ra2 Qdd2 Rd8 Rb8 Rd6 Re8 b8Q Nc8 Qb5 Nd3+ Kc6+ Nc5 Qh7 Qa5 Rd5+ Ke6 e5 Nd6 Qh4 Ndb7 Qh5 Ke7 e6 Kf6 e7 Rc1 Qhh7 Rge1 Qh8 Rd8 e8R Bd6 Qh5 Rf8 Rb2 Be5 Qhh7 Bd4 Qh5 Nb3 c5 Bf2 Ra2 Rb8 Kd7 Rc8 c6 Rb8 c7 N3c5+ Kc6 Rd8 c8N Rf7 Qd1 Qh7 Qc2 Rdd7 Rb2 Rde7 Nb6 Re3 Qf3 Ra3 Qg2 Re7 Qg1 Ree3 Qh2 Rf3 Red8 Nd3 Kd7 Ndc5+ Ke8 Qab4 Kf8 Qbd2 Re8 Qa5 Rd3 Kf5 Ke7 Ke4 Rd5+ Ke3 Bc4 Bg1 Qcb3+ Ke4 Rg2 Bf2 Bd3+ Ke3 Be2+ Ke4 Qc2+ Ke3 Rg5 Kd4 Rd5+
2QN1rn1/QR1b1p2/7b/8/Rn1BnQNN/Rk3N1K/1r2ppnb/3q2q1 b - - 0 1 legal: proof: d4 e5 f4 exf4 h4 c5 a4 cxd4 h5 b5 axb5 d3 e3 g6 Kd2 gxh5 Be2 dxe2 Rh3 h4 Rh2 Qb6 Rh1 Qd8 Ke1 Ke7 Kf2 Ke6 b4 d5 g4 a5 Kg2 h5 c4 f3+ Kh3 a4 g5 a3 g6 a2 c5 f2 b6 d4 e4 d3 b5 d2 b7 Ra7 b6 Qd6 c6 Qc5 c7 Bh6 e5 Kd5+ e6 Kc4 g7 Qd5 Nf3 Na6 b8N Bd7 b7 Nb4 Qa4 d1N Bb2 Ne3 Bd4 Ng2 Nc6 Ra8 c8Q Rb8 Qa5 Kb3 Qa7 Qg5 Qc7 Qd2 Qh2 Qd1 Nd8 Qg1 Qf4 Qd1 Kh2 h3 e7 Qg1+ Kg3 h2 e8N Qd1 Rf1 h1Q Nf6 Qg1 Ng4 h4+ Kh3 Nf6 Qf5 Rf8 Qf4 Ng8 Re1 Rc8 b8R Rc2 Rb7 Rb2 Nc3 Kc4 Nd5 Kb3 Rc1 a1B Ne3 Ra2 Rc4 Rd2 Bb6 Be5 Nf5 Rb2 Bd4 Bb8 Qc1 Bh2 Qf4 Qc2 Rc1 Qcd1 Ra1 Ne7 Qe5 B2f4 Bb6 Na2 Ra4 Bg3 Qf4 Nb4 Ngh2 Rc2 Be3 Rb2 Kg4 h3 R1a3+ Kc2 Nf1 h2 Kh3 h1N Bb6 Bh2 Ne3+ Kc1 Bc5 Ng3 Ng4+ Kc2 N5h4 Ne4 g8Q Re8 Qg7 Ng8 Qgf6 Rf8 Qc6 Ne3 Qc8 Ng2 Ra1 Kc3 Bd4+ Kb3 R1a3#
1b1nK3/2p1BBr1/Nq1Q3b/2Q1q2N/3np3/1N3Bbp/2Nb1k2/1r1RQ2q b - - 0 1 illegal: No possible last move
4B1bN/pr1bN2N/3B1Qrn/2K5/Q1n1q3/2BRBpk1/3pQ1q1/1rb1b3 b - - 0 1 illegal: No possible last move, all moves rejected
N3Q3/1n2BBK1/Q4Bpn/4Qq1B/1q2p1pN/kq3q1r/q5rR/2N1bn2 b - - 0 1 legal: proof: f4 c5 e4 f5 a4 fxe4 d4 cxd4 g4 h5 f5 b6 Ra3 Ba6 Rg3 Bc4 b4 a5 f6 axb4 Rg2 Be6 Rg3 Bf5 gxf5 Ra5 Rg5 Ra8 Rg4 hxg4 Kd2 d5 c4 Kd7 h4 Kd6 f7 Kc5 a5 e5 a6 b3 h5 Kb4 a7 e3+ Kd3 e4+ Ke2 b5 c5 b2 c6 Qg5 h6 Na6 f6 Nc5 c7 Qf5 c8B Nb7 h7 Nh6 Nd2 b1N Nb3 Nd2 Nf3 Be7 f8B d3+ Ke1 d4 f7 e2 Kf2 Rb8 a8N e1Q+ Kg2 Ka4 Rh2 b4 Bb2 Bh4 Nc1+ b3 Be6 Rc8 Bd5 Rc2 Qe2 Bf2 Bc3 b2 Nh4 b1Q Be7 Qa2 f8Q Bg3 Qf6 Rb2 Bf7 Rc2 Bd8 Ka3 Bh5 Bf2 Qe5 Rb2 Nb3 Qeb1 Nc1 Be1 Bf6 Rc2 Ba5 Qb4 Bad8 Rb2 Bde7 Rc2 Qf2 Rb2 Be2 Nf1 Bd1 d2 Qe2 d3 Bb3 d1Q Bbf7 d2 Q2b5 Rb8 h8Q g6 Qhe8 Qdb3 Qd3 d1Q+ Qe2 Bd2 Qc4 Rd8 Qce6 Rd3 Q6d6 Ne3+ Kg3 Bc3 Qdc6 Rf2 Qce6 Be1 Qa6+ Na5 Bh8 Rc3 Ng2 Nf1+ Kh4 Rg3 Bg7 Qdf3 Bh8 Qc8 Kg5 Rh3 Nh4 Rg2 Bg7 Qfc3 Kf6 Qd7 Bh8 Qf5+ Kg7 Qe3 Kh7 Qef2 Bhf6 Q2f3 Qb6 Nb7 Kg7 Qfd1 Qbd6 Qdf3 Qa6+
1k1r3q/nqb1NpRp/3q3B/bBQ2N2/K2bb3/1B5b/3p2N1/n3N1QQ b - - 0 1 legal: proof: d4 g5 c4 b5 h4 gxh4 f4 a5 a4 e5 e4 Nf6 d5 Ng8 d6 Ra7 b4 axb4 Ra2 Ra6 Rd2 Rc6 Rd4 exd4 e5 Rc5 e6 Rg5 c5 Rf5 Be3 Re5 c6 dxc6 fxe5 c5 Bc1 c4 Kd2 c5 Kc2 c3 Kb3 d3 g4 h3 a5 h2 e7 Kd7 e8N c2 g5 c4+ Ka2 c3 Kb3 Bg7 g6 Na6 Qd2 Ne7 Qd1 Nc6 Bd2 c1B Na3 c2 Nc4 Na7 Bh6 Bf4 Ne3 c1B Nf3 Bd2 Rg1 h1Q Ng2 Qh2 e6+ Kc6 d7 Kb7 e7 Bc7 Be2 Bd4 g7 Qd6 g8N Kb8 Ng7 B2c3 e8Q d2 Qe5 Q8f6 Ne7 Rd8 Ngf5 Qh8 Nfe1 Nc5+ Ka2 b3+ Ka3 b2 a6 Nb3+ Qc5 b4+ Ka4 b1B Bb5 Na1 Qc1 Rg8 d8Q b3 Qf8 b2 Qg7 Be4 Qg5 b1Q Qg4 Nc6 a7+ Kb7 a8B+ Kb8 Bb7 Na7 Bd5 B3a5 Bb3 Rd8 Qh3 Qd3 Qh1 Qf3 Ngh4 Be6 Rg7 Bc8 Nhg2 Be6 Nfh4 Bh3 Qg1 Bb1 Nhf5 Qb7 Qd1 Be4 Qh5 Bg4 Qhh2 Bh3 Qhh1
1r1QKBQr/3n2R1/4B1Q1/3pqrp1/b1Nr1Bk1/N3Qn1p/2N3r1/1n2r3 b - - 0 1 legal: proof: b4 a5 h4 axb4 g4 f5 a4 e5 d4 exd4 h5 c5 h6 c4 Ra3 fxg4 Rc3 g6 Rd3 Bg7 hxg7 cxd3 Kd2 Ke7 c4 Kf6 f4 Kf5 c5 d5 c6 b5 a5 h5 a6 h4 a7 g3 c7 g5 Qc2 g2 Na3 b3 Nf3 g1R Ne1 b2 Bh3+ Rg4 e3 Bd7 c8Q Nf6 g8Q b1R Rf1 Qe8 Qd8 Ke4 f5 Ra1 Qc6 b4 Nec2 b3 Rf2 Ke5 e4 b2 Rh2 Kf4 e5 Rg3 e6 Ng4 e7 Ne5 Qcg6 Ba4 f6 Kf3 Re2 Rg2 f7 Kg3 Bc8 h3 f8B Kf3 Bb7 Kg4 Bc8+ Qd7 e8N Qf5 Nd6 Qe6 Ndc4 Qf5 Kd1 d2 Rf2 Rb1 Ke2 d1R Be6 d3+ Ke3 d2 Kd4 Rf1 Kc5 d1R Kd6 Nbd7 Ke7 Rb8 a8Q Ra1 Qb7 Rd4 Qb3 Rb1 Be3 Rbe1 Ke8 b1N Rf4+ Kg3 Qc3 Qe4 Rf5 Kg4 Rf7+ Rf5 Rg7 Nf3 Bf4 Qe5 Qe3
b3R1Q1/bNn1r1N1/2p1p3/b1k1q3/1N2p3/5r1p/QB3RnR/KQN2q1q b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Bd3 g6 Bf1 g5 b4 gxh4 b6 a6 b7 Kf7 b5 Ke8 b6 Ra7 Be2 Qd5 Bg4 Ra8 Be6 Qd8 Bd7+ Kf7 Bb5 axb5 Qe2 Ke8 Qf3 Qd5 Qd1 Qd8 g4 Kd7 f4 Kd6 d4 h5 Kd2 b4 Kc2 h3 Kb2 h2 g5 h4 d5 c6 g6 b3 f5 h3 f6 Qc7 g7 Rh7 f7 Na6 b8R Nf6 g8Q Bb7 Re8 Ng4 Ra2 c3+ Ka1 c2 Bb2 c1B Ne2 Be3 Nc1 Kc5 Qe2 Qe5 d6 Nc7 d7 Ra3 d8N Ba8 b7 Rg7 Rf1 h1Q b8Q Bg1 Qa6 Ne3 Nc3 Ng2 Rf2 Rh7 Nd5 e6 Nb4 Bh6 f8N Bd2 Ng6 Re7 Nf4 Bc3 Nh5 Bd2 Nc2 Ba5 Nb7+ Kd5 Rf6 Ba7 Rf2 Qf1 Ng7 Qh1 Nd6 Kc5 Nb4 Ra4 Bc3 Ra3 Rd2 Qg5 Nd5 Nh4 Rh2 Ng2 Bf6 Be1 Ne2 Qf4 Be5 Qff1 Nc1 Bd2 Qe2 Ba5 Qb2 Ra4 Bc3 Rc4 Be5 Rc3 Qe2 Rf3 Qa6 Bb4 Rf2 Bd2 Qa2 b2+ Kb1 Ba5 Qbb3 Rd7 Nb4 Rdf7 Qd3 Re7 Nb7+ Kb6 Kc2 b1Q+ Kc3 Qa1+ Kb3 Ne3 Qdb1 Ng2+ Kc2 Qd4 Bf6 Qd5 Kb2 Qd6 Bc3 Qe5 Ka1 Kb5 Bb2 Kb6 Nd8 Kc5 Nb7+
kBQ1BBq1/3b1Q2/pKn2Rb1/N5qN/5n1p/1pp5/b2Q2B1/1r3Nrn b - - 0 1 legal: proof: h4 c5 b4 cxb4 f4 e5 h5 exf4 a3 b3 h6 b2 Rh5 gxh6 Rh2 h5 Rh1 h4 c4 b5 Ra2 b4 Ra1 b3 Ra2 Bb4 axb4 Ke7 Ra5 Ke8 Rd5 d6 Rd4 d5 c5 Qf6 Rc4 dxc4 Nh3 Qb6 Ng1 Qd8 Kf2 Kd7 d4 Kc7 e4 Kb7 g4 f5 g5 h5 e5 f3 Ke3 h3 c6+ Ka6 g6 f2 c7 Kb7 e6 c3 d5 h4 Kd4 h2 Kc5 f4 d6 a6 b5 f3 g7 Nf6 g8Q Nh5 e7 Nf6 e8B Bd7 b6 Nc6 Nd2 b1B Ne2 Nh5 Bg2 f1Q Ba3 f2 Qf7 Nf4 Ng3 Ba2 Nh5 Qg1 Nf1 Rf8 Qd2 Rb8 c8Q+ Ka8 Bb4 Rg8 Ba3 Rg3 Bb4 Re3 Ba3 Re1 Bb4 Rb1 Ba3 Bf5 d7 Qg5 d8N Qg8 Nb7 Bd7 Na5 Qg5+ Bd5 Q1g3 Rg1 h1N Rg2 Qg8 Bf3 Q3g7 Rg6 Qf6 Bd5 Qfg7 Rf6 Qg5 Nh2 f1B b7+ Ka7 Bb4 Bd3 Nf1 B3f5 Bg2 Bg6+ Kc4 Ra8 Bf8 Rb8 Qc7 Rc8 b8B+ Ka8 Qd8 Rc7 Qc8 Ra7 Qfd5 Rb7 Kc5 Rb4 Qf5 Re4 Qfd5 Ree1 Kb6 Red1 Qf7 Rdc1 Ne3 Rg1 Nf1
2b1n1Rq/b2Q1N1p/4BR1R/2N1pKb1/3bN2r/2Q1p1p1/1qn1Q3/R1k1q3 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 a4 bxa4 b5 fxg4 Qf3 d5 Qd1 dxe4 h4 a5 Ke2 g5 Bb2 g3 Ba3 g4 Bb4 cxb4 Ke1 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Qb6 Qc1 Qd4 Qd1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 g2 b6 e6 b7 g3 g6 b3 g7 b2 Nd2 b1Q Qe2 a3 Rh6 a4 Ngf3 g1B Ne5 a2 Nf7 a3 Bh3 Nf6 g8R Nc6 b8N Nb4 Na6 Be7 Nc5 Ne8 c3 Qb2 c4+ Kc6 f3 Nc2 d5+ Kb6 d6 Ka5 d7 Kb4 Kg4 Kc3 f4 e5 f5 Bg5 f6 Bd4 Kf5 e3 Rh1 a1Q Nde4+ Kb4 Rc1 a2 Rh1 Qd1 Re1 Qd2 Ra1 Ka3 Bg4 Qe1 Bh3 Bb7 Bg4 Qb8 d8Q Bc8+ Qd7 Qa8 Nb7 Bb6 c5 Ba7 c6 Qb8 c7 Kb3 Rg7 Rf8 Rg8 Qa8 Nbc5+ Ka3 Rd1 a1B Rc1 Qbb4 Rb1 Bd4 Ra1+ Kb2 Bh3 Qb1 Bg4 Kc1 Bh3 Qe1 Bg4 Bb7 c8Q Ba6 Qcc7 Bc8 Qa5 Qb8 Qc3 Qb2 Nfd6 Rf7 Bh3 Rg7 f7 Rg6 f8R Re6 Rh4 Rh6 Rf6 Qb8 Nf7 Qb2 Rf4 Rh4 Rh6 Qb8 Ke6 Qb2 Rff6 Qb8 Kf5 Qa8 Ra4 Qb2 Ra5 Qab8 Ra1+ Qb1 Rfa6 Qd6 Bg4 Rh2 Bh3 Qf6+ Kg4 Qh8 Raf6 Rh1 Kf3 Rh2 Be6 Rh5 Kg4 Rh3 Ra2 Rh4+ Kf5 Qb2 Ra1+
B2nk1N1/q1p1rRnN/n3Q3/Q4p1n/K5p1/b2rBq2/1r1pQN2/6NB b - - 0 1 legal: proof: d4 d5 a4 h5 e4 a5 c4 e6 b4 axb4 g4 hxg4 Ra3 Be7 Rd3 dxc4 d5 e5 Rd4 exd4 e5 Bf5 f3 Be4 fxe4 Bf8 Kd2 f5 Kc2 b5 h4 g5 h5 b3+ Kb2 g3 e6 g4 h6 d3 a5 b4 d6 g2 e7 Nc6 h7 Nf6 e5 Nh5 a6 Ng7 a7 Qb8 Nc3 Nd8 Be3 d2 Ne4 Qb6 Qe2 c3+ Ka1 c2 Kb2 c1N Nf2 Rc8 a8B Qa7 Rh5 Rg8 h8Q Na2 Qh6 Rh8 Rg5 Rh7 Qe6 Rb8 Rh5 Rb5 Rh6 Rd5 Rf6 Rd4 Rf7 Rd3 Ngh3 g1Q Bfg2 Qh1 Ng1 Qh3 Bh1 Qf3 Kb1 b2 Kc2 b1N Kb2 Qab7 Kc2 Nbc3 Kb3 Ne4+ Ka4 b3 Qd5 b2 Qa5 Kd7 e8N+ Kc6 e6 b1R d7 Ba3 e7 Ng3 Nf6 Rb2 e8N N3h5 Ng8 Nb4 Nef6 Na6 Qd1 Kd6 Qf1 Qa7 Qe2 Rh6 Nh7 Re6 Bb6 Re7 Be3 Nc6 d8Q+ Ke6 Qb8 Kd7 Qbb6 Ke8 Qb3 Nd8 Qe6
K1bR1bb1/4N2B/N1kr2Q1/3r2BB/3Qp2b/3pNp1b/2pQnr2/N4n2 b - - 0 1 illegal: No proof kernel
br2n3/1Br3kr/pr1NQ3/R1N5/4p3/pNKN1r1n/B3pQ2/QqB1r3 b - - 0 1 legal: proof: f4 b5 b4 e5 a4 bxa4 g4 h5 d4 hxg4 Ra3 c5 Re3 cxd4 Re4 Be7 e3 Bg5 f5 Bf4 exf4 Qa5 Re3 Qd8 Rh3 e4 Rh6 Qe7 Ra6 Qd8 Re6+ fxe6 Kd2 Kf7 h4 g5 c4 d5 h5 a6 h6 g3 h7 d3 c5 a3 c6 e5 b5 g4 b6 g2 b7 g3 c7 d4 f6 e3+ Ke1 e4 f5 e2 Kd2 Nd7 b8N Nc5 Rh6 Ne6 Nd7 Ng5 Rh5 Nh3 Nc5 Rb8 Nf3 g1R Ne1 Bb7 c8B Ba8 Bb7 g2 Qb3+ Kf8 f7 Qb6 Qe6 Kg7 f8N Qb4+ Nc3 Nf6 Nfd7 Qb1 Nb5 Ne8 Nd6 Rf8 Nb3 Rh1 Ndc5 g1R Bg2 Rf6 Bf3 Rgg6 Bg4 Rf7 Rg5 Rc7 Bh5 Rf1 Bg4 Rf3 f6+ Kf8 f7 Kg7 Rf5 Rh6 Na4 Rh5 Ra5 Rb5 Bh5 Rb6 Nac5 Nf4 Qc8 Rf2 Nc4 Qa1 Bb2 Rh2 Nd6 Qa2 Na1 Rh1 Bg4 Qb3 Be6 Rh4 Kc1 d2+ Kb1 Qb4 Kc2 d1R Ba2 Rd3 Qf5 Rdh3 Qe6 Qb5 Kd2 Rh6 Kc2 Rf6 Kd2 d3 Kc3 d2+ Nd3 d1R f8Q+ Kg6 h8Q Rhh7 Bc1 Qb1 Nb3 Re1 Kd2 Nh3 Qhg7+ Kh5 Qgh8 Rf2 Qa1 Rff1 Qee5+ Kg6 Kc3 Rf6 Qd5 Rf4 Qff5+ Kg7 Qde6 Rff1 Qf3 Rf2 Qe3 Rf3 Qf2
r1N2QRR/1N1r3q/6p1/np2pkBb/R3p1qr/qNpQ1N2/3n1K2/2Q5 b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 fxe4 g3 axb4 Bh3 e6 Bg4 hxg4 c5 Bd6 f5 Bf4 c6 dxc6 gxf4 c5 Qf3 c4 Qb3 Qf6 Qd1 Qd8 d4 Kf7 a4 Kf6 h4 c5 h5 b5 h6 c3 d5 b3 a5 g6 a6 c4 a7 c2 h7 c3 d6 e5 d7 b2 Nf3 g3 Nbd2 b1R Ra4 g2 Nb3 Qa5 d8N Na6 Qd3 Nc5 Nb7 Ne7 Kf2 Nc6 Rh3 Rd8 h8R Qc7 Rg8 Na5 Rhh8 Qh7 Bd2 c1Q Be3 Rb8 a8N Rd7 Nb6 Qa3 Bd2 Ra8 Bc1 Ke7 f6+ Ke6 f7 Kf5 Bd2 Rh1 f8Q+ Rf7 Qh6 Rh4 Be3 Bd7 Nc8 g1Q+ Ke2 Qg4 Kf2 Be6 Bc1 Rd7 Bd2 Kf6 f5 Bc4 Qhe3 Be6 Qe1 Bc4 Qc1 Be6 Nbd4 Ncb3 Bh6 Nd2 Nb3 Kf7 f6 Bc4 Qh1 Ke6 f7 Kf5 Bg5 Be6 Qc1 Bc4 Qdb1 Be2 Qd3 Qh3 Ng1 Bh5 Nf3 Qg4 f8Q+
Q2K2Rn/1b1Q3k/2R2p2/1pN1n2p/QqR5/1q1NbBpp/nN3Q2/3rq3 b - - 0 1 illegal: No proof kernel
NB3Q1b/QQ3p2/2rq2p1/b1Qrq1BR/p6n/2pR3B/3bp1R1/2kb2K1 b - - 0 1 legal: proof: f4 d5 g4 b5 a4 bxa4 c4 dxc4 e4 g6 d4 Bf5 g5 Be6 d5 Nc6 f5 Nb4 d6 Bc8 Nc3 Nd5 exd5 Be6 Nce2 Bc8 Nf4 gxf5 g6 Nf6 g7 Ng8 Ng6 hxg6 Kd2 f4 Ke2 Bf5 Ke1 Bc8 Kf2 Kd7 b4 e5 h4 c5 b5 a5 h5 a3 h6 f3 b6 a2 h7 a4 b7 e4 b8R c3 Rh5 c2 Rf5 c4 Re5 Ra5 Bf4 c1B Rh5 Bd2 Qb1 Ne7 g8Q Nf5 Rb2 Nh4 Nh3 e3+ Kg1 Bh6 Qf8 f2+ Kh2 Qf6 Ng5 Qe5 Ne6 e2 Bh3 f1Q Rb3 Qd1 Rd3 Be1 Bg3 Bhd2 Kg1 Rc5 Qb5+ Rc6 Qc5 Ba5 Rb1 a1B Bf4 Rg8 h8Q Ba6 Qb8 Rd8 Qba7+ Bb7 Qf8 Bed2+ Bf1 Bb2 Nc7 Bbc3 Rb3 Ba1 Rg3 Bd4+ Rbe3 c3 Rg2 Ba6 Bh2 Bd3 Bf4 Bc2 Bh2 Qb1 Na8+ Qb7 Bf4 Qc7 Bg5 Bd1 Qb7 Qf4 Qca7 Bh8 Rd3 Qe5 Qc5 Rb8 Qba7 Rb4 Qfb8 Rd4 Qbb7 Ke8 Bf4 Kf8 d7+ Kg7 d8Q Qcd6 Qf8+ Kf6 Bg5+ Kf5 Bf4+ Ke4 Bg3 Qb8 d6 Rd5 d7 Qbc7 d8B Qcd6 Rd4+ Ke3 Bg5+ Qf4 Re4+ Kd3 Re3+ Kc2 Rd3 Qf5 B3f4 Kc1 Bh2 Qd8 Bb8 Qd6 Rh2 Qe4 Bh3 Qee5 Rg2
rn6/R2pnn2/NRkr3q/Rq4R1/B3n2R/Q4p2/Kn2b1qB/B1bR4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 f5 h4 a5 b4 g5 e4 a4 c4 d3 Kc3 a3 Kb3 a2 c5 f4 e5 d2 c6 g4 b6 f3 c7 Rh7 e6 Bg7 h5 Qg5 b5 Rh6 b7 Rh8 h6 Ra5 b6 Ra6 e7 Bb2 h7 Qh6 Ne2 g1Q Nc3 g2 Bb5 g3 Ba4 Qf1 Nd5 g1N Nb4 g2 Qe1 d1N Qe3 Ra8 Na6 Nh3 Bd2 g1N Bc3 Qg2 Qd3 Kf7 e8R Ng5 Re5 Ne4 Ra5 Ke7 Rhh5 Nh3 Rhg5 Bc1 Rb1 Qh5 Ba1 Nb2 Qc3 Kd6 Qe3 Bd2 Rd1 Ne7 Qc3 Rf8 h8R Rf6 Qe3 Qg6 Rh4 Qh6 Ka3 Nf4 Kb3 Ne6 Ka3 Nd8 Kb3 Nbc6 b8R Nf7 Rb7 Nb8 Ra7 Bb7 c8R Bd5+ Ka3 Bc4 b7 Be2 Rcc5 Re6 Rcb5 Kc6 Qb3 Rg6 Qb4 Rd6 Kb3 Bc1 Qa3 Nc4 Nc5 Na6 b8B Nb2 Bc7 Nb8 Na6 Rg6 Be5 Rd6 Bh2 Nc4 Bh8 a1Q Bd4 Qc3+ Ka2 Qb4 Ba1 Nb2 Rbb7+ Qb5 Rb6+
2r4R/NNR2N2/bKRbq2b/n1p2R2/B4BBn/2pq4/q3Rk1q/1n3r2 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Qd3 g2 Qg3 hxg3 Nb1 Bc5 Kd1 Bd6 Ke1 Bf8 b4 Kd7 d4 Kd6 Kd2 Kd5 Ke3 a5 h4 g5 h5 f5 b6 c6 b5 g4 b7 a4 b6 a3 h6 a2 h7 c3 Rh5 Ne7 Nh3 Bh6+ Ng5 Rf8 h8R Ng6 Na3 Nh4 Nb5 g1B+ Kd3 f4 Bh3 f3 Na7 c5 e4+ Kd6 Kc4 f2 Kb5 f1N e5+ Kd5 e6 g2 e7 g3 e8B Nd2 Ka5 Rf1 Bg4 Nb1 Nf7+ Ke4 d5 Bh2 d6 Nc6+ Ka6 Qe7 d7 Qe6 d8N Rb8 Rf5 Ra8 Rf3 g1Q Rf5 Qd4 Kb5 g2 b8R g1Q b7 Be5 Bf4 Qh2 Ka6 Bd6 Bd7 Nd2 Re1+ Qe3 Kb5 a1Q Kb6 Na5 Re2 Qaa2 Be8 Nb1 Ba4 Bd7 Rc8 Bb5 b8R Ba6 Rc6 Kd4 Re1 Qd3 Rb7 Rb8 Re2 Rc8 Rg2 Ke4 Rbc7 Kd4 Nb7 Ke4 Bh3 Kf3 Re2 Rb8 Re4 Kf2 Bg4 Rc8 Re2+
1b2q2B/N4p1N/6rp/K1N3bB/1NBb2rr/2r1R1Rn/Nrk3n1/b3R3 b - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 a5 exf4 a6 bxa6 Ra4 a5 Ra1 a4 g4 g6 Qc2 f3 Qf5 gxf5 g5 f4 h3 Bg4 hxg4 Ke7 Kd1 Kd7 Ke1 Ke8 b4 Ke7 d4 Ke6 Kd2 Kd5 Kc3 Ke4 d5 c5 b5 a5 e3 f2 g6 a3 b6 f3 g5 a4 b7 a2 d6 a3 d7 Ra4 g7 Bd6 g6 Nh6 g8N Qe8 d8N Nf5 g7 Nc6 b8R Nh4 Bb2 Nb4 Ne2 Nd3 Ne7 Nf4 g8B Nhg2 Ne6 Nh3 Rb3 Bb8 N2f4 h6 Be2 f1R Nd3 f2 Nb4 Rg1 Bh5 f1R Nec6 Rf4 Na7 Rg4 Bh7+ Rg6 Rh2 Rg8 Rh1 Re1 Rf1 Re2 Rf5 Rg4 Rf3+ R8g6 Rg3 Re1 Kd2 c3+ Kc2 c4 Nc5+ Ke5 e4 Kd4 e5 Re2+ Nd2 Rh4 Re1 a1B e6 a2 e7 Rf2 Nd5 Rb4 Rge3 Rff4 Nde4 Rb5 Nb4 Rfg4 Ncd3 Rbb6 Nec5 Rb7 Nc1 Rbb6 Ba3 Bb2 Rg3 a1B Nca2 Rb7 Kd1 c2+ Kd2 Rb5 Rbe3 c1B+ Kc2 c3 Kb3 c2 Ka4 Rb7+ Ka5 Bc3 Bb2 Bd2 Rd1 c1R Rg1 Kc4 Rge1 Bf6 Bd4 Rc3 Be5 Bg5 Bh8 Rbb6 Nba6 Rb2 N6b4 Rg8 Be4 Rg6 Bc2 Bf6 Bd3+ Kd4 Bc4 Bg7 Ref3 Bg5 Rfe3 Rd3 Nc1 Kc3 Nca2+ Kd2 Nc2 Bd4 Ncb4 Qf8 e8N Rc3 Nf6 Qe8 Nbc6 Kc2 Nh7 Bd6 Bf6 Bdf4 Bh8 Bb8 Ncb4+
Nr3N1B/5bqp/4N2N/1rqqn3/1pR2bp1/n1B5/5k2/KBNrbN1Q b - - 0 1 legal: proof: g4 d5 f4 a5 b4 axb4 h4 g5 a4 d4 f5 d3 f6 exf6 cxd3 Qd7 d4 Qd8 d5 gxh4 g5 f5 Ra3 Qd7 Rg3 Qd8 Rg4 fxg4 d4 Ke7 Kd2 Kd6 Kc2 f5 Kb2 c5 e4 b5 g6 f4 g7 h3 a5 f3 a6 b3 a7 h2 Be3 f2 Bc1 c4 Bd3 f1R Bc2 c3+ Ka1 Nc6 Bg5 Be6 Ne2 Nb4 Bf6 Qb6 Nd2 Ne7 g8N Ng6 Nc1 Ne5 Bb1 c2 Nh6 Rb8 a8N Qc5 Qf3 Rg8 Bh8 Rd1 Nf1 Bf7 Rg1 Rg7 Qh1 Rg5 Rg3 Be7 Rc3 Bd8 Rc4 Ba5 Nc7 Rf5 Ne6 Rh5 Nf8 Rf5 Qg2 h1Q Qf3 Qh5 Qh1 Qg5 Ba2 Qg7 Bb1 Ke7 d6+ Kf6 d5 Kg5 d7 Kf4 d8N Rg5 Qh4 Kf3 Qh1+ Kf2 d6 Rh5 d7 Rg5 Ne2 c1B Nde6 Bf4 d8B Rf5 Nc1 Nc2+ Kb2 Rg5 Bf6 Na3 Ka1 Rh5 Be7 Be1 Bf6 Nc6 Bc3 b4 e5 Qd5 Nd4 Rg5 e6 Ne5 e7 b2+ Ka2 Rf5 e8N Rg5 Nc7 Qc5 Na8 Rh5 Nde6 Qd5 Bd3 Qc5 Kb3 b1Q+ Bb2 Qc2+ Ka2 Qd2 Bb1 Qdd5 Ka1 Rg5 Nd4 Rg6 Bc3 Rgb6 Nde6 R6b7 Bb2 Rb5 Bc3
kn1N4/2bBK1B1/rRbN1BBr/1p1p4/pb2n1q1/2rR2B1/6R1/r3q1N1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 b4 a6 b5 axb5 a3 Nf6 a4 Ng8 a5 Ra6 Qd3 Ra7 Qa3 Ra8 Qa4 bxa4 Ke2 b5 Kd3 d5 g4 Kd7 f4 Kc6 c4 Kb7 c5 e5 a6+ Ka7 g5 h5 c6 h3 f6 h4 f5 h2 g6 h3 g7 Ba3 f7 Nf6 g8R Nbd7 f8B Rh5 c7 Bd6 Bb2 Rh6 Nc3 Rh5 Ne4 Rh6 Rg2 Bb4 Rd1 Nb8 Bg7 Qe7 Nd6 Ne4 f6 Bb7 c8B Bc6 f7 Ba5 f8B Bc7 Bc3 Qh4 Bd7 Qg4 Kc2 d3+ Kb2 d2 Ka3 Nf6 Bd3 e4 Kb4 e3+ Kc5 e2 Bg6 e1B Bb2 Rh7 Be5 Rh6 Bg3 Ne4+ Kb4 Rh7 Be7 Rh5 Bef6 Rh6 Rc1 d1R+ Rc3 Rd2 Rd3 Rc2+ Rdd2 Rc3 Rd3 Kb6 a7 Ka6 Nf3 Bd2 Re1 h1Q Ng1 Nf2+ Re4 h2 Rc4 Be1 Kc5 Bd2 Nf3 Qe1 Ng1 Ra3 Re4 h1R Re6 Ra1 Nb7 R1h3 Nd8 Bca5 Kd6 Ne4+ Ke7 Bc7 Nf7 Kb7 Rd6 Na6 Re6 Bb4+ Rd6 Rg8 a8N Nb8 Nb6 Rgh8 Nc8 Ka8 Nd8 Rf8 Bb2 Rf3 Bbf6 R3h5 Rdd2 Rc3 Rd3 Re5+ Kf8 Re6 Kf7 Bb7 Rb6 Bc6 Nd6 Re8 Nc4 Bb7 Rd6 Re6 Rc6 Rd6 Ke8 Rh7 Ke7 Rh6 Rc5 Ra6 Nd6 Qd2 Rc6 Qe1 Rb6 Bc6 Bf7 Ba5 Bfe8 Bb4 Bg6
4Nq2/1NBrk3/2q2p2/2pn1p1b/1NQ1N1r1/2b1Nq2/K1RB2r1/3nBqN1 b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 e6 c4 dxc4 g5 g6 Bh3 e5 axb5 exf4 Bf5 gxf5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 e4 c5 h4 a5 d4 c3 g6 a4 h5 g3 e5 g2 g7 c2 Kd2 a3 Kc3 f3 Kb3 f2 h6 f1Q b6 a2 e6 a1Q e7 Qfa6 h7 Q1a5 d5 Bd7 b5 Qe1 b7 Qab6 d6 Ra7 Qg4 Na6 b8B Rc7 Ka2 Nf6 g8N Qd1 Qc4 Ne4 Na3 Qc6 b6 Qf3 b7 Nf2 Rh2 Nd1 Bd2 c1Q Nc2 Bg7 Ne3 Bc3 Be1 Be6 Bd2 Rd7 Bc7 Bd5 b8N Be4 Be1 Bd3 Bd2 Be2 Be1 Qcd5 Nc6 Nb4+ Kb3 Qde4 Bd2 Nd5 Nb4 Qa8 Be1 Qc6 Ka2 Qf1 Bd2 Bh5 Be1 Qef3 Bd2 Rd8 Be1 Kd7 e8N Ke6 Bd2 Rd7 Ngf6 Rg8 h8B Rg4 Ne4 Qb1+ Ka3 Qbd3 Ka2 Qde2 Be5 f6 Bg3 Kf7 Be1 Kf8 Nh3 g1R Rf2 R1g2 Ng1 Rh7 d7 Ke7 d8N Rhg7 Qb3 Qeb5 Qc4 Qb8 Nb7 Qc8 N8d6 Qf8 Ne8 Ke6 Bc1 Rd7 Rc2 Ke7 Bcd2
2BK2N1/3N1bn1/prB2r1p/1bp3n1/1n3r2/2NQ1q2/pB1R1NN1/2q1kN2 b - - 0 1 legal: proof: g4 d5 c4 dxc4 h4 e5 f4 exf4 b4 b5 a4 bxa4 g5 g6 Ra3 Bc5 Rg3 Bb6 Rg4 f3 Rf4 Be3 Rf5 gxf5 g6 Bg5 hxg5 f4 Kf2 Kd7 d4 Kc6 e4 Kb5 g7 c5 d5 f5 d6 a3 d7 h6 g6 a6 e5 a2 e6 Nc6 e7 Qf8 d8N Be6 e8B Nf6 g8N Rb8 g7 Rb6 Ne7 Nh5 g8N Bf7 Ne6 Ng7 Bh3 c3 Nd5 Kc4 b5 c2 Rh2 Nb4 Nd2+ Kd3 Bb2 c1Q Bc6 Qa8 Qe2+ Kc2 Qd3+ Kd1 Bg4 Rh7 Nh3 Rh8 Kg1 Ke1 Nf1 f2+ Kg2 f3+ Kg3 f4+ Kh4 Rh7 Nc3 Rh8 Bf5 Qb7 Kg4 Rh7 Nd2 f1N Nf2 Ng3 Nf1 Ne4 Rg2 Ng5 Rh2 Qa8 Rg2 Rb8 b6 Rf8 b7 Rb8 Nh1 f2 Rh2 f3 Nf4 Rf8 b8N Rh8 Nd7 Qb7 Ne3 f1B Rd2 Be2 Nf1 f2+ Qf3 Bb5 Qd3 Rb8 Be6 Qa8 Bf5 Rb6 Be6 Nh5 Kf5 Ng7+ Kf6 Rh7 Ke7 Rh8 Nh2 f1R Bf5 Rf2 Nf1 Qb7 Kd8 Rh7 Ng6 Rf4 Nh4 Rh8 Nf2 Rh7 Ne5 Rh8 Bc8 Rf6 Be8 Qf3 Nd7 Rf4 Ne7 Rf8 Ng8 Rff6 Ng4 Bg6 Nf2 Rfc6 Nb8 Rf4 Bed7 Re6 Bc6 Bf7 Nd7 Ref6 Ng2+
1N1n1n1K/R1q2k2/qp1n1RNp/B3bNpp/6R1/1RQ1r3/RRr4b/1n6 b - - 0 1 legal: proof: e4 c5 d4 cxd4 h4 a5 b4 axb4 h5 g6 Nh3 gxh5 Ng1 d3 g4 d5 g5 d4 g6 Qb6 g7 Be6 Bh3 Bb3 Bf5 Qd8 Bg6 Bd5 exd5 fxg6 Kd2 e5 c4 b3 a4 h6 f4 e4 a5 b6 f5 b2 a6 Qd7 a7 Bc5 f6 Qd8 f7+ Ke7 f8N Na6 d6+ Ke8 d7+ Ke7 Qb3 Qe8 d8R Qf7 Ne2 Rc8 a8R Rb8 Qc3 Nc7 R1a2 Rc8 Rh2 Bd6 c5 Nf6 g8R Be5 c6 Nh7 Na3 Ne6 Nd7 Nhf8 c7 g5 Nb5 Qg7 Nb8 Kf7 R8a7 Qh7 Re8 Nd8 Nf4 Qg7 Re6 b1N+ Ke1 d2+ Kf2 d1Q Ng6 d3 Ke3 d2 Nd4 Qa4 Nf5 Qa5 Rh3 Qa4 Rb2 Qa6 Rg3 Qh7 Rg4 Bh2 Kd4 d1N Be3 Nf2 Bd2 e3 Kd5 e2 Rb3 Bg1 Ke5 e1B Rb2 Ne4 Rb3 Nb7 Rb2 Re8 c8R Nd6 Rcc4 Re7 Rcb4 Nd8 R4b3 Bef2 Qd4 Be1 Ba5 Bef2 Qc3 Bg3+ Nf4 B1h2 Rg7+ Ke8 Kf6 Rg8 Ng6 Bf4 Re1 Re3 Ra8 Bfg3 Rga7 Rg7 Ree2 Rc7 Re1 Rc8 Ree2 Qhb7 Re1 Qc6 Kg7 Qc7+ Kh8 Kf7 Ree2 Rf3 Re6 Re3 Qc1 Qe7 Qe1 Rc2 Qc3 Qc7 Bb4 Qc4 Raa2 Qb5 Ba5 Qa6 Ra7 Be5+ Rf6+
q2N1NbN/prrBB1R1/2b2R2/r1n2p2/5qpb/2Bp1k2/R7/BbB2K2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 Qd3 bxa4 Qd2 Ne7 Qd1 Ng8 Nh3 f5 Bd2 h5 Bc1 Nf6 gxf6 Nc6 Ng1 Ne7 Qd3 Ng8 Qh3 Rh6 Qh4 Rh8 Qg4 hxg4 e4 Kf7 h4 Ke6 b4 Ke5 c4 d5 f7 g5 c5 a3 h5 d3 c6 g3 b5 a2 c7 g4 b6 f3 h6 d4 b7 g2 b8B Qe7 h7 Bg7 f8B Bh6 Na3 Qd8 Nc2 Be6 Nb4 Nf6 Nh3 g1Q Ng5 Nd7 Be7 Bg8 Ne6 Bg5 Rh6 Qh2 Rf6 Qf4 Nf8 d2+ Kf2 d1B Bb5 d3 c8R+ Kd4 e5 Ke4 e6 Bh4+ Kf1 f2 Be5 Rb8 Rc7 Bc2 Bc3 Rb7 Nc6 Qa8 Nd8 Nc5 Bd7 Bb1 B3d2 Bf7 Bc3 Rg8 h8B Kf3 Bd6 Rg5 e7 Rg7 e8N Bg8 Be7 Bc2 Rb1 a1R Nd6 Ra5 Ra1 Bb1 Ra2 Rg6 Re6 Rbb5 Rc6 Rb3 Ba1 Rb7 N6f7 Rc7 Ra6 Rb7 Reb6 Rc6 Bhc3 Rcc7 Rg6 Ke4 Kg2 f1B+ Kg1 Bg2 Rg7 Bf3 Rf6 Bh1 Nh8 Bf3 Bc1b2 Ke3 Ba3 Bc6 Bc1+ Kf3 Kf1
3R2q1/bNQRR2n/r7/2bq2k1/1Rp2qR1/Bnn3R1/2B2b1K/q3n1Q1 b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Ng1 f3 Nc3 f4 Ne4 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kf7 e4 Kf6 d4 b5 a4 g5 h4 c5 h5 b3 d5 g3+ Ke1 f2+ Ke2 g4 d6 b2 h6 b1Q d7 c3 a5 c2 a6 b4 a7 g2 e5+ Kg5 e6 c4 f6 b3 f7 b2 h7 g3 Kf3 Nf6 e7 Na6 e8R Bc5 f8R Rg8 h8R Nh7 Rh4 Nb4 Ne2 g1B Kg2 Nd3 Ra3 Qa1 Rf7 b1N Nd4 Nc3 Nb5 Ne1+ Kh3 g2 Ree7 Rg6 Bd3 f1Q Nd6 Bgf2 Nb7 Qg8 d8Q Ra6 Bb2 c1N Qc7 f3 Bc2 Qd3 Kh2 Nb3 Rd7 Qd4 Rfe7 Qdd5 Qd4 Rf8 a8R Rf4 Rad8 Rg4 Ra4 Ba7 Rb4 Bc5 Ba3 g1B+ Kh1 Ba7 Rh3 Bc5 Rg3 Ba7 Qd1 Bfc5 Qc1+ Bge3 Qd1 f2+ Kh2 f1Q Qb1 Qf4 Qd1 Nf6 Rh4 Bf2 Qb1 Nh7 Qc1 Nd3 Qg1 Ne1 Rxg4+
5B2/4R1b1/1kn3BB/b1q1rBr1/3bRr1N/nb1K1R1r/3B3b/2Rn2nQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 g5 h4 d5 c4 Kd7 b4 Kc7 e4 f5 c5 a5 h5 g4 h6 d3 h7 a4 c6 d4 e5 f4 e6 f3 e7 f2 e8B a3 Bb2 a2 Nh3 g1N Qb3 g2 Qa4 g3 Bh5 Nd7 Bc1 Nb6 Ng5 Qd6 Bg6 Ne7 Nf3 Qc5 Rh3 Ra5 Nh4 Be6 Qd1 Bb3 Ba3 Bg7 Rc1 Re8 h8R a1B Rh7 Rg8 Be2 f1R Bg4 Rf4 B4f5 Re8 Qf1 Rh8 Re1 Bb2 Re4 Nc4+ Ke1 Kb6 c7 Bc1 c8R Nc6 Qf3 Be3 Bc1 Re8 Bd2 Na3 Qd1 Re5 Rc7 Bh8 Rhe7 Bg7 Qb1 Ne2 Qa1 g1B Rc8 g2 Rf3 Bh2 Qc1 g1B Rcc7 Na7 Qb1 Qd6 Rc1 Nc6 Qa1 Bef2+ Kf1 Be1 Qb1 Qc7 Qa1 Kb7 b6 Bgf2 Qb1 Ng1 Qa1 Ka6 b7 Kb6 b8B Qd6 b5 Qc5 Bd6 Be3 Bb4 d2 Qb1 d1R Bd2 Nh3 Ke2 Ng1+ Kd3 B3f2 Rc4 Be3 Qa1 Rb1 Rc1 Rb2 Bc3 Rg2 Bd2 Rg3 Re6 Rh3 Bf8 Kb7 b6 Ka6 b7 Kb6 b8B Rb5 Qa2 B3f2 Be3 Ba5 Bd2 Be3 Re7 Bf2 Bc3 Be3 Qg2 Bf2 Kd2 d3 Qh1 Bd4 Bd6 Bh8 Bh6 Bg7 Ke1 d2+ Kf1 d1N Bd2 Rg3 Ke1 Nh3 Ke2 Ng1+ Kd3 Rh3 Be6 Rg5 Bef5 Qb4 Rf7 Re5 Bf8 Qc5 Re7
B2q3r/nNbRQ2b/2bN3K/B4b2/1r1b2bb/2N1BNB1/rk5B/3q1q2 b - - 0 1 legal: proof: f4 c5 e4 f5 d4 cxd4 g4 fxe4 a4 h5 b4 a5 f5 axb4 g5 Nc6 Ra3 Ne5 Rg3 Ng4 Rg2 N4f6 Rg4 hxg4 gxf6 Qa5 Ne2 Qb6 Ng1 Qd8 Kd2 Kf7 h4 e5 c4 b5 h5 g5 h6 d5 a5 g3 c5 b3 a6 b2 a7 g4 c6 e3+ Ke2 e4 h7 b4 c7 b3 Nd2 b1B Rh6 d3+ Ke1 e2 Bg2 b2 Nc4 d4 Kd2 e1R Qa4 Bd7 c8N Ne7 Qa2 Bc6 Bh3 g2 Rg6 g3 Nf3 g1B Qa3 g2 Na5 Rb8 a8N Rb4 Nb7 Re2+ Kd1 d2 Nc7 e3 Nb5 Bf2 Nc3 g1B Bg2 Bh4 Bh1 Bg7 Qa7 Bh2 Ncd6+ Kf8 f7 Nc8 Rg1 Ke7 f6+ Ke6 f8B Bf5 f7 b1B Qa3 Bgf6 Rg7 Na7 Be7 Bf4 f8B Rh2 Bg2 Bfg3 Ke2 d1B+ Kf1 d3 Bh1 Qb8 Bd8 d2 Ba5 Qd8 Rd7 Bd4 Bh6 Rg2 Bf4 Rf2+ Kg1 e2 Be3 Bge5 Bf4 Bbd3 Bg3 Kf6 Bg2 e1Q+ Kh2 Bf4 Qa1 B1e2 Qa3 d1Q Bd2 Qf1 Be3 Bg6 Kh3 Bge4 Kg4 Bf5+ Kh5 Bfe5 Nc4 Bc7 Kh6 Bb1 Ne1 Beg4 Ncd6 Ra2 Nf3 Ke6 Na4 Kd5 Bh1 Rg8 h8B Bbe4 Bhe5 Rh8+ Kg7 Bh7 Kh6 Bef5 Bh2 Qb1 Beg3 Qbd1 Nc4+ Ke4 Nc3+ Kd3 Ncd6 Kc2 Bg2 Ra4 Qc5 Kb2 Qe5 Rc4 Qe7 Rb4 Ng5 Rg8 Nc5 Ba4 Ba8 Rh8 Nf3 Bc6 Ncb7
1RB1K2B/Bn3B1q/1nrkb1n1/B2NQq2/Q1Bb1p2/6n1/1n6/bqNr4 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 a5 Ke4 f5+ Ke5 d5 h4 g5 c4 f4 e4 g4 b6 d3 h5 a4 b7 a3 h6 a2 b5 a1B+ Bb2 d4 b6 d2 h7 d3 c5 Qc7+ Kd5 Nd7 b8Q Ra6 c6 Nc5 b7 Bg7 e5 Be6+ Kd4 Qc8 c7 Rc6 Qa4 d1N Qb4 d2 Qc4 Ne3 Qb3 d1N Qa4 Nc4 Nc3 Nb6 Nge2 g1N Nc1 g2 Bc4 g3 Nd5+ Kd7 Bc3 Ne7 Rh4 Rd8 h8B Nb2 Ba5 Ng6 Rh5 Bf6 Rf5 Bg7 Rf8 Bf6 Qa8 Bg7 b8B Nb7 Ba7 Ne2+ Ke4 g1Q Qb8 g2 Rg8 Bh3 e6+ Kd6 e7 Be6 e8B Qh2 Bf7 g1Q Rf8 Bd4 Rg8 Qd7 c8B+ Kc5 Qe5 Qh7 Re8 Ng3+ Kf3 Nf5 Rf8 Qf1+ Kg4 Ng3+ Kg5 Qd3 Kf6 Qb1 Re8 Qh5 Kg7 Qhf5 Qf6 Kd6 Kg8 Ne7+ Kf8 Qc7 Qg5 Rd7 Rd8 Ng6+ Ke8 Qg4 Ne7 Be5 Bg8 Kc5 Qf5 Rdd6 Bd7 Rd1 Rb8 Kd6 Bc8 Bd4 Nd5 Qh7 Bf7 Qgh5 Qf6 Qhf5 Qe5+
R1Qb1R2/2qb1n1N/N2bp1KR/2RqN3/r1N1B1R1/n2n3r/q5r1/n2k4 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Ke2 a5 b4 d5 c4 Kd7 h4 Kd6 g7 Ke5 h5 e6 c5 g4 h6 g3 b6 d3+ Kd2 Kd4 b5 a4 h7 a3 b7 a2 b6 e3+ Kc1 g2 c6 e2 Kd2 e1B+ Kc1 Ke3 c7 d2+ Kc2 f3 Rh3 d4 Na3 d3+ Kc3 Nh6 g8N Ra4 Rg3 Na6 b8N Bd6 b7 Bd7 c8R Nb4 Qc1 Qc7+ Nc6 Nc2 b8R Nf7 Rg4 f2 Nf3 g1R Bg2 Ke2 Ne5 f1Q Be4 Bh4 Nac4 d1Q Nf6 d2 Nb4 Qf2 Na6 Rg2 Rf8 Qh1 Rb5 Na3 Rc5 Bg5 Qc2 Qh5 Rh1 a1N Rh2 Ke1 Kd3 Qe2+ Kd4 d1N Rh3 Nb2 Rhh4 Qg6 Rh6 Nd3 Qc3+ Kd1 Ra8 Rb8 h8R Qf5 Nh7 Qa2 Rf8 Bd8 Ke3 Rb3 Kd4 Ne1 Ke3 Qh5 Kf4 Qh1 Qb2 Rh3 Qb7 Rh5 Qc8 Rh3 Rg3 Nd3+ Kg4 Bh4 Kh5 Bd8+ Kg6 Re2 Bf5 Qd5 Rg4 Rg2 Be4
2nb2q1/pq3Nrb/Rb4B1/r1Bq1QNN/nn5q/2N1Nr1N/7K/kQ6 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 h4 Ke7 c4 Kd6 e4 Ke5 h5 d5 h6 g5 c5 f5 c6 d3 b6 Kd4 b5 f4 b7 g4 e5 f3 e6 f2+ Kd2 Ne7 c7 Na6 b8N Nb4 Be2 f1R b6 Rf3 Nh3 g1Q h7 g2 b7 g3 Rh2 Qh1 Nd7 g1B Ke1 g2 b8Q Be3+ Bf1 g1Q Nc3 Qg8 Ra2 d2+ Ke2 Bf2 Qc2 d1N Ba3 Nb2 Nc5 Na4 Qf5 Kc4 Ra1 d4 N5e4 Kb3 Neg5 Qd5 Bg2 Qb7 Ra2 Qh2 Kf1 d3 Ra1 Bd7 c8N d2 Nd6 Nc8 Nc4 Be7 Ne3 Bd8 e7 Qg3 e8N Qh4 Bh1 d1Q+ Kg2 Qdd5 Nf6 Be8 Nh5 Bg6 Nc4 Bfb6 Ne3 Na2 Bb4 Kb2 Bc5 Nb4 Kh2 Qdd7 Rd1 Qdd5 Rd4 Ka1 Rd2 Qdc4 Rd6 Qgd5 Re6 Re8 h8N Bh7 Rh6 Re5 Bg2 Qg8 Nhf7 Qcd5 Rf6 Ba5 Ra6 Bab6 Qd6 Rb8 Qdg6 Re7 Bf1 Rd7 Bd3 Rc7 Nh6 Rg7 Nhf7 Qbd7 Qe5 Bbc7 Rf6 Rb5 Ra6 Ra5 Bb1 Qb7 Qc2 Qdc6 Qb3 Qd6 Bg6 Bb6 Qc2 Qdc6 Qef5 Qd5 Qb1#
2r1R3/p1r1N1N1/1rRr1q1r/n1qq1R1R/1kN2Q2/1b1n4/6q1/1KRN1Bb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kc1 Kd6 b4 g5 h4 f5 c4 d3 e4 g2 h5 g3 b6 d2+ Kb2 g4 b7 f4 b5 Kc5 b6 d5 h6 d4 h7 f3 e5 f2 e6 d3 e7 Na6 b8R Be6 e8N Nb4 b7 Ne7 Qb3 d1R Rh6 d2 Qf3 Rc1 Rc8+ Nec6 b8R d1R Rh3 Nd3+ Ka2 Qd5 Rd8 Na5 Rb6 Rc8 Rc6+ Kb4 Qf4 Bc5 Ne2 g1Q Nd2 g2 Rh5 g3 Ng7 Qh1 Rdd6 g1R Nc3 g2 Rd8 Qh4 Rf5 Qf6 Rg8 Rh1 Re8 Rf8 h8R g1Q Rh7 Rh6 Rh8 Rb1 Rh7 Rb3 Rc1 Rf7 Ka1 Bd4 c5 Rfc7 Nc4 Rd2 Rhh8 Rbb2 Nd1 Bg8 Bh3 f1Q Rh7 Qe2 Bf1 Qgg2 Rh8 Bg1 Rh7 Qee7 Rh8 Rbc2+ Kb1 Rb8 Rh7 Rb6 Rh8 Rg6 Rhh5 Rh6 Re6 Rc8 c6 Qec5 c7 Re2 Rc6 Re6 Qg4 Rd6 Qf4 Qdd4 Nd2 Bb3 Nc4 Qdd5 Rfg5 Ra8 c8N Rab8 Ne7 Rc8 Re5 Qg3 Rc7 Qcd4 Na3 Qgg2 Ref5 Rcc6 Nc4 Q4c5 Qe5 Rd7 Qe4 Rcd6 Rc6 Rdc7 Qf4
B1n2r2/B1B1pn2/2rqNQ2/kb6/q3R1nN/4b2N/2nqrNB1/1K2N1r1 b - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 g4 c5 e4 cxd4 a4 gxf4 g5 b5 axb5 fxe4 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 d5 c4 Kd7 Kc2 Kc7 h4 Kb6 h5 a5 g6 g3 h6 a4 g7 d3+ Kb2 g2 h7 d4 Na3 d2 Qf3 d1Q Be3 Qd6 Nh3 g1R Bg2 Nc6 Nc2 Ra6 Ne1 Qd2+ Kb1 Nh6 g8N a3 Nf6 Na7 Ng4 Nf7 Ngf2 Bh6 Rh2 Rf8 h8N Bb7 Ng6 Bc6 Nh4 Nc8 Rh1 Ra7 Rh2 Rc7 Rh1 Be8 Rh2 Rc6 c5+ Kb7 b6 Ka6 b7 d3 b5+ Ka5 Bd4 e3 b8B e2 b6 Bg5 b7 Bd7 Qg3 f3 Qe5 Be3 Qf6 a2+ Ka1 Ra6 c6 Rb6 c7 Bb5 Bc5 Ra6 Bca7 Rc6 Ne4 f2 Rh1 f1N Nef2 Nb6 c8B Nh2 Bf5 Ng4 Bfe4 Nc8 Rh2 Qd1+ Kb2 a1N Rh1 Qa4 Kb1 d2 Nf5 Nh8 Nf4 Rc3 Bc7+ Qb6 b8N Nh2 Nc6+ Ka6 Ncd4 Nc2 Bcb8 Ka5 Nde6 Qd6 Bb7 Nf7 Ba8 Nf3 Rh3 Nh2 Rh4 Rc6 N4h3 d1R+ Kb2 Rd5 Kb1 Rd2 Re4 Ng4 Nh4 Rh1 Kb2 Rg1 Nef3 e1Q Qf4 Qd1 Qf6 Re2 Ne1 Q1d4+ Kb1 Qd2 Bc7+
2rN1B2/2bbN1K1/2R1Qp2/1N1r2nB/nB1rB3/1b4q1/1N1b1N2/2rr2kr b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 g5 h4 g4 c5 d5+ Kf4 a4 e4 a3 b6 a2 b7 a1B c6 d3 b5 d4 e5 Kd5 c7 d2 e6 d3 Kf5 Kd4 b6 Ke3 h5 Kf2 h6 f6 Kg6 Bc3 h7 Bd7 c8N Na6 b8B Qc7 e7 Nc5 e8B Ra5 b7 Bd6 Kg7 Nh6 Nb6 Na4 Na3 Nf7 Nbc4 Rd5 Nb2 Ng5 Bh5 Rc8 Qb3 d1R h8N Bd2 Nf7 Qc3 Rh4 Bc7 Nb5 Rd4 Qe6 Qa3 Ne2 g1R Bg2 Rh1 Nec3 Kg1 Be4 g2 Nd8 g3 Rf4 Rd5 Rf5 Rd4 Rc5 Rd5 Rc6 Rh4 Bef3 Rhd4 Ne4 Be1 Ba7 d2 b8N Kf1 Ra6 g1R Be8 g2 Nf2 Rh1 Bg6 g1R Bfh5 Qg3 Bc5 Kg2 Bf8 Rf1 Nc4 Kg1 Bca3 Ra1 Be4 d1B Bab4 Bb3 Nbc6 Bd2 Nb2 Rac1 Ne7 Rfd1 Rc6
Rb2R1qR/2NR4/K2nr1R1/3b2pQ/pb2Q1Bk/n2NbR2/8/rb2nr2 b - - 0 1 illegal: No possible last move, all moves rejected
1n1nnR2/1Q1q1R2/1qb1n3/5N1B/rR1nN2N/3K3n/NNp3p1/rbR4k b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 f5 Bb2 h6 Ng1 f4 Bf6 Bd6 Bg5 hxg5 Qb3 f2+ Kd1 f3 Kc1 Nc6 Qd1 Bf4 gxf4 Nb8 Kc2 Kd7 h4 Kd6 d4 Kd5 a4 Ke4 e3 c5 h5 b5 a5 c3 a6 b3+ Kc1 g4 f5 g5 d5 b4 a7 c4 d6 c2 Kd2 c1N d7 g3 h6 g2 h7 g4 f6 g3 f7 b2 f8N c3+ Kc2 Ne7 Qd6 b3+ Kd1 c2+ Kd2 Nec6 Ne6 Nd3 Be2 Nc5 Qe7 Bb7 Nd4+ Ne6 Nf5 f1N+ Kc3 f2 Nf3 g1N N3h4 g2 Bh5 Nd2 Ra4+ Nc4 Rb4 Nh3 Rc1 f1N Nd2+ Ke5 e4 Kf4 e5 b1B Ne4 b2 Kd3 Nd6 Qf7 Qe7 d8N Ng3 Qg7 Rg8 h8R Ne8 Rh7 Ne2 Qf7 Rg4 Qg7 Ncd4 Nc6 Nd8 e6 Qd7 e7 N4e6+ Rd4 Bc8 Nb4 Bb7 Na2 Bd5 Rb4 N2d4 Qg8 Bb7 Rf7 Bc6 Qg7 Rg3+ Kd2 Ra3 Qh7 Ra4 Kd3 Nf6 Bg6 Kg4 e8N Kf4 N8d6 Ne8 Nc4 Kg4 Qg7 Kf4 Ng5 Kg4 Bh5+ Kf4 Nfe3+ Kg3 Ne4+ Kh2 Nef5 Na6 Bd1 Kh1 Qh7 Rc8 a8R Nb8 Nac3 Ra1 Na2 Rc7 Qg7 Ra7 Bh5+ Ng1 Nce3 Ra4 Nd1 Nh3 Ra7 Qd6 Rf8 Qd5 Qc7 Qd7 Qb7 Qd5 Qb5 Qd6 Raf7 Qd7 Nac3 Ba2 Qb7 b1Q Rc4 Qb6 Rb4 Bb1 Na2 Kg1 Nb2+ Kh2 Nd1 Kh1 Nb2+
2b3Nn/1k2q1N1/NRpQRrBK/2b1p1Rb/5nN1/2R5/5q1q/2n1Rq1b b - - 0 1 illegal: No possible last move, all moves rejected
brBn2KN/5rp1/b1kBN3/qB2bQpB/7q/1RN4B/3r1qqN/7b b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a4 h6 Ra3 Nc6 Re3+ Nce7 Re5 Qc7 Rh5 Qd8 Rg5 Nf5 gxf5 hxg5 Kf2 d5 e4 Kd7 c4 b5 h4 b3 f6 b4 f7 b2 e5 b3 h5 d3 e6+ Kc6 h6 d4 h7 d2 e7 d3 a5 Rb8 c5 Ba6 Bh3 Nh6 Qc2 d1R Nc3 b1Q Ba3 d2 Qf5 b2 Bb4 Rg8 h8N Qe4 Ba3 b1B e8B+ Qd7 Bb4 Bd6 f8N Be5 Bh5 Qd8 Ne6 Rf8 Rh2 Bbd3 Rg2 Nf7 Rg3 Bb7 a6 Qa5 a7 Bda6 a8B Nd8 Ba3 Rf7 Bb4 Kd7 Ba3 Qeb4 c6+ Kd6 c7 Kc6 c8B Qc4 Qb1 Qe4 Bd6 Qh7 B5g4 Qh4 Qd3 Ra1 Qh7 d1B Bh5 Ra2+ Qc2 Bde2 Qf5 Rd2 Ne4 Kb6 Nc3 Be4 Bd5 Bb7 Bc6 Ba8 Bb5 Beb7 Ng6 Ba6 Nh8 Bc4+ Ke1 Bcd5 Kf1 f2 Nf3 Bdc6 Nh2 Bh1 Rd3 Rd1+ Ke2 f3+ Ke3 f1Q Nc7 f2 Ne6 Bf4+ Kd4 Qg2 Kc4 f1Q Kd4 Be3+ Ke5 Qff2 Rd2 Bc5 Rb2 Rd2 Rb3 Be3 Ba3 Bd4+ Kd6 Rf6 Ke7 Be5 Bd6 Rf7+ Ke8 Re7+ Kf8 Ra7 Bd3+ Kc6 Kg8 Rf7 Bb5+
nbB3B1/5QB1/7q/B1pqbp1r/KpN3nR/n1q2N2/kNB2r2/3r2N1 b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 g5 e5 g6 exf4 a4 h5 Nh3 f6 Ng1 Be6 Ra3 Bd5 Rg3 Bf7 gxf7+ Kd7 Rg4 hxg4 d4 Kc6 Kd2 Kd5 Kc2 b5 h4 c5 a5 g5 h5 g3 a6 f3 a7 c3 Kb3 g4 h6 f5 h7 f2 Na3 c2 Rh4 g2 Bb2 c1Q Nc4 Bd6 f8N g3 Ne6 Qh6 Ng5 Nd7 N5f3 Ngf6 e3 Rb8 Bd3 f1Q Bc2 Ng4 a8B+ Rb7 Ba1 Bb8 Nb2 Qe1 Qd2 Nb6 e4+ Kc6 e5 Kd5 e6 Qe5 Nh3 g1B e7 g2 e8B Bh2 Bd7 g1R Bc8 Rd1 Nhg1 Qeg7 Qg5 Bhe5 Qg6 Qd6 Qf7+ Qde6 Ka2 b3+ Ka3 Qgf6 Nd3 Kc4 d5 b2 d6 Kc3 d7 Qd5 d8B Re7 Bab7 Na8 Ba5+ b4+ Ka4 Kc4 Be6 b1N Bbc8 Na3 Nb2+ Kc3 Qe8 Rg7 Qe7 Rg5 Qf7 Rhg8 h8N Rh5 Ng6 Rd8 Bc7 Rf1 Bb6 Rf2 Ba5 Bec7 Qg8 Qe4 Nge5 Rd1 Nec4 Qd5 Qe8 Bh2 Bg8 Qfe5 Qf7 Qee3 Be4 Qed2 Nd3+ Kc2 Qe7 Kb1 Qf7 Ka2 Bg7 Bhe5 Ndb2 Qc3 Bc2
3bn3/R2RRN2/b1np1R2/kq6/N1pB1R2/1Q1nKbrb/1N1pb3/3Nr3 b - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 h4 g5 e4 gxh4 exf5 a6 b5 axb5 c5 Nf6 Bd3 Ng8 Bc4 bxc4 Kd2 b5 f4 e5 g4 h5 a4 d3 f6 e4 f5 d6 c6 h3 g5 h4 c7 Kd7 a5 Kc6 g6 b4 a6 Kb5 a7 h2 g7 h3 f7 b3 f6 b2 Ra6 Be7 f8R Qd7 f7 Nf6 g8N Bd8 Nf3 Ne8 Ne5 Nc6 Nh6 Rg8 Re1 h1B Ke3 d2 Nd3 h2 Ra3 Bf3 Nc3+ Kb6 Re2 b1B Nb2 Ba6 c8R h1B Rc7 Qf5 Rd7 Bd3 Qb3+ Qb5 Ncd1 Bhg2 Re1 Bde2 Ra1 Rb8 a8N+ Kc5 Nb6 Bh3 Ra4 Rg3 Ra2 Bc8 Raa7 Ba6 Nd5 Ra8 N5c3 Kb6 Nca4+ Ka5 Rh8 Rg7 f8R Rg3 Rf6 Rc8 Rhh7 Rc7 Rdf7 Re7 Rf1 Re5 Rfd7 Re6 Rhe7 Re5 Kf4 e3 Rf2 Bd3 Rf1 e2 Nf7 e1N Rf2 Bde2 Rf1 Reg5 Ke3 Nd3 Rf2 Rg1 Rf1 Bh1 R1f4 Bhf3 R6f5 R5g3 Rf6 Nf2 Nd3 Rf1 Bb2 Rh1 Be5 Re1 N3b2 Nd3 Bd4
R1Rq4/1bb3p1/Nnp1Q3/k2N1N2/1rpR1NB1/2r2N1n/1R1b3q/2bK3b b - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 h5 b3 hxg4 f5 e6 Ba3 exf5 Be7 b6 a4 b5 Bh4 f4 Bg3 fxg3 axb5 Qg5 Ra2 Qf6 Ra1 Qd8 d4 Kd7 h4 f5 e4 a5 h5 c6 h6 Kc7 d5 Kb6 e5 g2 e6 a4 b4 g3 e7 f4 e8N f3 d6 a3 d7 a2 h7 Bb7 Nd6 Ne7 Rh4 Nd5 Nf5 Ra4 Nc3 Bd6 Rd4 Nf4 Qe2 f2+ Kd1 Nh3 Nf3 g1B Qe6 g2 Be2 f1B Rb1 a1B Rb2 Rf8 h8N Bc7 Ng6 Be3 Nf4 g1Q Ncd5+ Ka7 b6+ Ka6 b5+ Ka5 Ng5 Qh2 Bg4 Bc1 Nf3 Bg2 Nd3 Qg5 d8R Bh1 Rc8 Rb4 N3f4 Nd7 Ra8+ Ba6 b7 Qd8 b8R Nb6 Rc8 Rh8 Rb3 Bc3 Rb1 B3d2 Rb2 Na4 b6 Re8 b7 Nb6 Qg8 Re3 b8N Rc3 Qe6 Kb5 Qe4 Bb7 Na6 Ka5 Qe6
R1N1rNQB/K4pn1/5qrp/k2rn1N1/r2N1pb1/1N4N1/3QBb2/n1n5 b - - 0 1 illegal: No possible last move
qN1bR1rr/pp2rn2/1R2B2B/7b/1R1R3b/2B5/nn2Bpkp/1KR1Q3 b - - 0 1 legal: proof: b4 d5 a4 e5 f4 exf4 h4 g5 c4 gxh4 c5 c6 Na3 Qa5 b5 Qxa4 Nc4 dxc4 bxc6 Qa2 d4 Ke7 e4 Ke6 g4 f5 d5+ Ke5 c7 h5 d6 h3 d7 h4 d8B c3 c6 c2 Kd2 f3 g5 Kf4 g6 Kg3 e5 h2 e6 h3 e7 f4 e8R f2 g7 f3 Qe2 Bg4 c8R Be7 c7 Na6 Ba3 Bh4 Kc1 Bh5 Bf8 Nb4 Qe1 Nh6 g8B Nf7 Be2 Kg2 Bh6 f1N Rb1 f2 Bf6 Nd2 Bc3 Nc4 Rcd8 Nb2 c8R Qa4 Re6 Qe8 Nf3 Qf8 Rf1 h1R Rd4 h2 Rce8 Rb8 Rb6 Na2+ Kd2 c1B+ Kc2 Bd8 Ne5 Bcg5 Nc6 Bh4 Rc1 Rc8 Nb8 Rg1 Kb1 Rc7 Rdb4 Re7 Rd1 Kh3 Rdd6 Rg6 Rdd4 Kg2 Bh7 Rgg8 Bf5 Qg7 Be6 Qg3 Nd7 Qb8 Rh1 Qa8 Nb8 Bg3 Qd2 Bh4 Rc1 Rg7 Qd1 Rgg8 Qe1
1b4n1/qrN1N1N1/2N1r3/Q1k1Np2/Knp2q2/p2B2RR/Nrpbq3/1Q6 b - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 g5 e5 g6 exf4 b3 h6 Ba3 Be6 Bb2 Kd7 Bf6 Bd5 Bh4 f6 Bg5 Bf7 gxf7 hxg5 e4 Kd6 d4 c5 Kd2 a5 Kc3 f3 h4 a3 d5 a4 b4 g4 h5 g5 h6 f2 h7 a2 b5 g3 b6 g4 b7 a3 Nf3 f5 Rh2 g2 Rh3 g1B Ne5 g3 Bd3 Bh6 f8N f1Q Ne6 g2 Nc7 Nc6 b8N Nb4 Nbc6 Bh2 Ne7 g1Q N5c6 Qe2 e5+ Kd7 e6+ Kd6 Ne5 B2f4 Qa4 Qb8 Qa5 Ra6 Rg3 Nf6 Rh3 Rg8 h8Q Rg2 Qc8 Qh2 Qb7 Ng8 Qbb5 Qa7 Qb8 Nc6 Qbb5 Bd2+ Kc2 c3 Kb3 c4+ Ka4 c2 Nc3 Nb4 Rg1 a1R Na2 Rg7 Rgg3 Rb1 Qb7 Bhf4 Qb6+ Nc6 Qg1 Rb5 Qb1 Kc5 d6 Nb4 d7 Rb6 d8N Rg6 N7c6 Rb7 e7 Re6 e8N Qhf2 Ng7 Qff1 Ng6 Bd6 Nge7 Qf4 Nf7 Be5 Na8 Bb8 Nfe5 Nd5 Qa6 Rb2 Nc7 Nb4 Qa5+
2BBr2N/1k3p2/1p1n2qN/7B/K2p1n1N/n1bpB3/Rq2nbN1/r3QB2 b - - 0 1 legal: proof: g4 e5 f4 exf4 h4 c5 d4 cxd4 a4 b6 h5 Bb7 b4 a5 h6 axb4 Ra3 Be4 Rg3 Bg6 Rg2 Bh5 gxh5 Be7 Rg3 Bf8 Rg6 hxg6 Kd2 d5 e4 Kd7 c4 Kc7 Kc2 b3+ Kb2 d3 a5 f3 a6 d4 c5 g5 Ka3 f2 e5 g4 a7 g5 h7 g3 h6 g2 e6 g4 e7 b2 e8N+ Kb7 Nf6 g3 Ng4 Na6 Nd2 b1N+ Ka4 Ne7 Nh3 g1B Nf3 g2 Qe1 Nd5 Be3 Qd6 Nh4 Qg6 Nf4 Nac7 Rh2 Rg8 h8B Nb5 h7 N1a3 Be5 Nd6 h8N Be7 Bf6 Rge8 Nh6 Bf8 Be2 f1Q Bh5 Bf2 Bd8 g1N Nfg2 Ne2 c6+ Kc8 c7 Ndf4 Qc3 Qb1 Qe1 Kb7 c8B+ Kc6 Bcg4 Kb7 Be6 Qb2 Bh3 Rc8 Be6 Rc1 a8B+ Ka7 Bc6 Ra1 Bcd7 Kb7 Bh3 Ne4 Bde6 Bb4 Bef5 Bc3 Bfg4 Nc1 Be2 Nd6 Bf1 Nce2 Bc8+ Ka8 N6f5 Qc1 Kb3 Bg1 Ka4 Ng3 Nh6 Ka7 Qe2 Kb8 Ne1 Ka7 Be6 Kb7 Rf2 Qd2 Neg2 Qc1 Qd1 Qb1 Re2 Bf2 Ra2 Nge2 Qe1 Qb2 Bc8+
1q2Qq2/kR2n3/NRR1pB1p/qb3p2/R1n3p1/B1r1b3/1B2b3/2R2BnK b - - 0 1 illegal: No possible last move, all moves rejected
1b4B1/b2b2N1/2nN2R1/rN1KN1p1/NrnB3p/bRN4p/4r1r1/k5bN b - - 0 1 legal: proof: g4 d5 e4 a5 d4 g5 h4 f6 b4 axb4 c4 dxc4 d5 Qd7 e5 Qd6 exd6 Bf5 Qd2 gxh4 g5 Bg4 g6 Bc8 Qg5 fxg5 Ke2 Kd7 Kf3 b5 Ke4 h5 a4 c5 f4 e5 g7 b3 a5 b4 a6 b2 a7 b3 f5 h3 f6 c3 f7 c4 Ra2 c2 Ra1 c3 Be3 c1B Ra3 h4 Ba6 c2 Ra5 Nh6 g8N Nf5 Bc4 Nc6 Na3 b1R Rc5 b2 Bd4 Bf4 Nb5 c1B Ne7 Bce3 Ne2 Rg1 Ng3 Rg2 Rb1 Bg1 Nh1 Ne3 Bb3 Nc4 Ba2 Rb8 a8N Rh6 Bb3 Re6 Ba2 Rb6 Bb3 Ra6 Nb6+ Kd8 d7 Ra5 Na4 Bfe3 Na7 Kc7 d8N Bd7 Nb7 Bf4 Rb5 Bfh2 Rf1 b1R Nd6 Rbb2 Ba2 Rb4 Rf6 Bf4 Rg6 Bg3 Kf5 e4 Rb6 e3 Nab5+ Kd8 Rb7 e2 Bb3 Be5 Ke4 e1B Rb6 Bd2 Rb7 Bc1 Rb6 Bfg7 f8N Ba3 Rb8+ Bc8 Nd7 Bf4+ Kf3 Ree2 Ne5 Bfe3 Rb7 Bd7 Ke4 Bf6 Ndf7+ Ke8 d6 Bh8 Kd5 Bf6 Ba1 Ba7 Bd4 Bg7 Nf5 Bf6 Nfg3 Bd8 Rb6 Bc7 Ne4 Bcb8 Nec3 Kf8 Rh6 Kg7 Rf6 Bf5 d7 Bg4 d8N Bf5 Rd6 Bd7 Ne6+ Kf6 Ng4+ Kf5 Ng7+ Kf4 Rg6 Kf3 Bf6 Kf4 Nge5 Ke3 Nd6 Kd2 Nef7 Kc1 Bd4 Re3 Ne5 Ree2 Nce4 Kb1 Nec3+ Ka1 Kc5 Nd2 Bg8 Nc4 Kd5 Bc8 Rb7 Bf5 Rf7 Bd7 Rf2 Re4 Rb2 Ree2 Rb3
4nqNN/3br1k1/rR2r1pR/1N4K1/3nR3/BNq3b1/3rB2b/1N1Nqr2 b - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 Kd2 f5 h4 Kf7 e4 a5 c4 d5 b4 g6 h5 d3 Ke3 d2 Kf4 d1Q b6 d4 b7 d3 c5 d2 b5 a4 b6 a3 h6 a2 c6 Qe1 c7 d1R h7 Ra5 e5 Rd2 e6+ Kg7 e7 Nc6 b8R Nf6 b7 Bd7 c8N Ra6 Na7 Ne8 Kg5 f4 Nh3 g1R Be2 g2 Ba3 f3 Nf2 Nd4 Nd1 f2 Rh6 f1R Nb5 Rg8 h8N Rf7 Rc8 Rgf1 b8N g1B Rc6 Bh2 Rb6 R7f6 Nc6 Re6 Na5 Qb8 Nf7 Rh8 Nb3 Rh7 Nh8 Qc8 Nb1c3 Qa8 Rc1 a1Q Nb1 Bg3 Rc5 Qc3 Rc4 Nf6 e8N+ Kg8 Ne3 Bh2 Rcc6 Nc2 Nc1 Bfd6 Nb3 Rhe7 Nd1 Bdg3 Rc5 Kf8 Rd5 Nd4 Re5 Qb8 Re4 Kg8 Nec7 Qf8 Nd5 Ne8 Nf6+ Kg7 Ng8
2rbqq2/2N5/p1qNNN2/p1RB4/2n3K1/k4R2/rB1bN1B1/b1Nbn1b1 b - - 0 1 legal: proof: f4 d5 g4 h5 a4 hxg4 c4 e5 cxd5 exf4 a5 g3 a6 bxa6 Ra4 a5 Qb3 g2 Qg3 fxg3 Ra3 Rh5 Ra1 Rh8 e4 Ke7 Ke2 Kd6 Kf3 Kc5 h4 Kb4 d4 g5 e5 f5 e6 c5 d6 f4 h5 a6 e7 c4 e8B c3 d5 c2 h6 Be7 h7 Nf6 d7 Ng4 d6 Nc6 Ra3 Ne3 Rh5 Nc4 Bf7 Nd4+ Kg4 f3 Bd5 f2 Rf3 Qe8 Ne2 g1B Bg2 f1Q Nd2 Be3 Nb3 Bd8 Bd2+ Ka4 Bb4 c1Q Bc3 Rf8 h8N Bd2 Nf7 Nc2 Ne5 Ne1 Nf7 Qc2 Nbc1 Rb8 b4 Ka3 b5 Qf2 Bh3 g2 b6 g1B b7 Qc5 Bf1 Bd4 Bg2 Ra8 b8N Qg6 Kg3 g4 Rg5 Qc6 Kh4 g3 Kg4 Qh6 Rgf5 Be7 d8N Rh8 d7 Qhf8 Ne6 Rh2 Rh5 Bd8 Nd6 Bh8 Nc7 Bb7 Bf1 g2 Re5 g1B Bg2 B8g5 d8N Bg7 N8f7 Bd8 Nd7 Rc8 Nf6 Rh1 Be4 Qh8 Nd3 Qa4 Rc5 Bc6 Nf2 Nd3 Ng5 Bh2 Nh5 Ra1 Bd5 Bg1 Bd4 Qhf8 Nge6 Ra2 Ba1 Bgc3 Nf6 Ne1 Nd3 Qb5 Ng8 Qb7 Ndc1 Ba4 Nf6 Qbc6 Rf4 Bcd4 Rf1 Bd1 Rf3+ B4e3 Be5 Bc3 Bd4 Ba1 Bc3 Bd2 Bb2+
1N1RN1q1/5R2/R1q1RN1b/p1B4K/1b3qr1/3Rb1Rp/1kbnqrn1/6B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h3 cxd4 h4 g5 g4 Qb6 h5 Bb7 Bc4 Bc8 Bf7+ Kd8 Bg6 Nf6 Qd2 Qc7 Qf4 Ng8 Qg3 Qb6 Qh4 gxh4 g5 Qc7 Bf5 Qb6 g6 Ke8 g7 Qd8 Bg6+ hxg6 Ke2 Kf7 c4 Ke6 b4 Ke5 b6 d5 f3 a5 b5 d3+ Ke3 g5 c5 h3 c6 g4 h6 g3 h7 g2 c7 d2 b7 d1Q b6 d4+ Kf2 d3 Kg3 Kd4 Kh4 e5+ Kh5 d2 Ba3 e3 Ra2 e4 Nc3 e2 f4 e1Q+ Kg6 e3 f5 e2 f6 Nd7 b8B Qf1 b7 e1B f7 Qc1 Nd5 d1Q Re2 Ngf6 g8R Ng4 Ba7+ Nb6 Nf3+ Kc4 b8R Kb3 Ne5 g1B Nc6 Ne3 Rg7 Bg4 c8N Rg8 h8R Ng2 Nd6 Bf5+ Kh5 Qc5 Rb7 Bc2 Rg3+ Bc3 Rh7 Rg4 Re6 Bh6 f8R Qde2 Rfe8 Rc8 Nb8 Qc6 Bb4 Nc4 Rb6 Qff3 Ra6 Kb2 Rg7 Bb6 Rd1 Qfe3 Rd3 Nd2 Rf8 Rc7 Rgg8 Rf7 Rg7 Rf3 Rgf7 Qf4 Nf6 Bf2 Be3 Qdc8 Bbc5 Bb4 Rg8 Qf8 Rh8 Bg1 Bf2 Qg7 Rd8 Qg8 Be1 Bd4 Bf2 Be3 Bg1 Rf2 Nde8
k1B2N2/6b1/N2rRp2/2b1R1b1/p1BrB2n/1q1q3n/B1N3p1/K2B1Brb b - - 0 1 illegal: No proof kernel
r1q2q1B/1r1n2Bp/3N1R1K/1B1q4/3b3N/2p1rN2/1p1p1BRp/3kBn1B b - - 0 1 illegal: No proof kernel
1B3nb1/Bbn2p2/2R4K/2B3Rn/k2qn2b/3b4/4Q1BR/qb1NR1Q1 b - - 0 1 legal: proof: b4 b5 f4 e5 d4 exf4 a4 c5 a5 cxd4 a6 Nc6 Nc3 Rb8 Nxb5 Rb7 axb7 h5 b8B g6 Na3 a6 b5 g5 h4 gxh4 b6 Rh6 Nb5 axb5 b7 Rd6 Bxd6 b4 Bc7 Na7 Bb8 Nc6 Kf2 d5 Kf3 Kd7 e4 h3 c4 h4 Kg4 b3 Kh5 b2 g4 b1B g5 d3 g6 f3 e5 f2 c5 d2 g7 d4 Ra8 h2 Ra4 d3 Qe2 d1B Bf4 d2 Qf3 h3 Re4 Nd4 e6+ Kc6 e7 Nb5 e8R Bdc2 Qb3 d1N R4e5 Be7 Bc7 Bh7 b8B Nf6+ Kh6 Bg8 Rg5 Ndc3 Bb6 Bb7 Bg2+ Nce4 Qc2 f1B B8a7 Nd7 Bfb8 Nc7 Ne2 Nf8 Nc3 Qd4 Nd1 Kb5 Qe2+ Ka4 c6 Bf6 Bc5 Bd8 Qh5 Bfd3 Qe2 Bf6 Re1 h1Q Ree5 h2 Ref5 Bh7 g8Q Bd8 Rh5 Bh4 Rfg5 Qf1 Qg7 h1N Qg6 Bg8 Qg7 Na8 c7 Nhg3 c8R Qh1 Rc6 Nc7 Qf6 Qhg1 Qff2 Qa1 Qff1 Qgd4 Qg1 Qab2 Rg4 Qa1 Rhg5 Nh5 Rg3 Ka5 Rh3 Ka4 Rh2
K4b2/N3Nqq1/Q1B3bB/4rn2/b1pk1qBR/N1q2n2/1N3qr1/Q1B5 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 Ra3 d5 cxd5 b5 axb5 axb4 Qa4 bxa3 Qb3 Bc5 Qd1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 h5 d6 f3 g5 f2 b6 a2 d7 a1Q g6 h3 b7 h2 g7 h4 Nf3 h3 Ne1 Ne7 g8N Qe8 d8B Ra2 Na3 Nd7 b8N Rh5 Nc6 Ne5 Na7 Nf5 Bg5 Qc3 Bh6 Bd7 Ne7 Ba4 d3 Nf3 d4+ Kb6 Kd5 c5 e4 c4 Bd3 f1Q e5 Rg2 e6 Qf2 Be2 f6 Nd3 Qf7 Nb2 Rhg5 Rf1 h1Q Qe1 Qh2 Rh1 Qhg1 Bd1 h2 Qe5 Nd2 Bg4 Nf3 Qe1 Ng7+ Kd6 f5 d5 f4 Qd1 Re5 Qd4+ Ka6 Kc7 Nf5 Kb8 Ka5 d6 Kb4 Qd1 Kc5 Qe1 Kd4 d7 Qgf1 Ka8 Qg7 Rg1 h1B d8Q+ Bd7 Qc8 Be8 Bd2 Bg6 Qa1 Qfc1 Be1 Q1e3 Bd2 Qe4+ Qc6 Qd5 Bc1 Qd7 Nec8 Qdf7 e7 Ne1 e8B f3 Nb6 Qf1 Bcg5 f2 Be2 Rh2 Bg4 Be4 Rg2 Bc2 Nd5 Ba4 Bc1 Qe2 Rg3 f1Q Qa6 Rg2 Bc6 Qf4 Ne7 Nf3 Rh3 Qf2 Rh4
Nq1b4/1B1k1N2/bn6/2rNp3/QQ3r1N/rn5K/1R1Q2r1/qrQ1b1R1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 fxe4 Bb2 axb4 Ba3 b5 axb5 bxa3 g4 c5 f4 e5 Kf2 h5 Kg2 e3 d4 c4 d6 c3 b6 e2 b7 e1B d7+ Ke7 d5 a2 g5 c2 f5 c1Q d6+ Kf7 f6 Ke6 g6 Nc6 b8N Ra4 g7 Rf4 f7 Nd4 Kh3 Ne7 g8N Nd5 Nc3 Nb6 Rb1 a1R Nd5 Ba6 Nh6 Nb3 Nf3 Rg8 Bg2 Be7 f8Q Ra3 Rb2 Qa1 Rg1 Bf6 Bh1 Rg2 Qc1 Qc8 Nf7 Bd8 Nc6 Qb8 Na7 Rc2 Nc8 Rc5 Kh2 h3 Nh4 Bb4 Kg3 h2 Kh3 Be1 Be4 Be7 d8Q h1R+ Kg2 Rh3 d7 Rg3+ Kh2 Rgg4 Kh3 Rg2 Qc7 Bd8 Qd2 Rb5 Qcc1 Rba5 Qfb4 Rc5 Nf5 h4 Bf3 Be7 d8Q Bf6 Qc7 Bd8 Qa7 Nc4 Qab6+ Kd7 Q6a5 Nb6 Ncd6 Na4 Nb5 Nb6 Nbc7 Rg8 Kh2 h3 Nh4 Rg3 Na8 Rg8 Kh1 h2 Be4 Bg3 Kg2 h1R Re1 Rg1+ Kh3 Rg2 Rh1 Be1 Rg1 R8g6 Ne3+ Rd6 Bb7 Rdd4 Nd5 Rd3+ Qe3 Rd1 Qcd2 Rb1 Qc1 Rgf2 Qed2 Rg2 Qaa4+
1Qr4q/knqBN1rN/8/NpbR2Rb/r3n3/3RN2R/2K4Q/r2n2n1 b - - 0 1 illegal: No possible last move
2B1b2B/n1BQ2R1/N4n2/1q3rrn/r1BR2rk/2R2Qpq/R1K5/5nq1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 e5 d4 exf4 a4 c5 a6 cxd4 a7 b5 a5 Bc5 Nd2 Bb6 axb6 b4 b7 Rh7 Nc4 Rh8 Nd6+ Kf8 Ne8 Kxe8 Kd2 Ke7 h4 Kf6 e4 g5 c4 d5 c5 d3 h5 g3 h6 d4 h7 g2 c6 f3 c7 f2 Qb3 g4 e5+ Kg5 e6 f5 e7 f4 e8Q f3 Rh2 Bd7 c8B Nc6 b8R Nf6 Qc2 b3 Ra4 b2 Rb7 b1Q Ra1 Qb5 Nh3+ Kh4 Ra5 g1Q Bg2 f1N+ Kd1 d2 Ra6 f2 Qc3 Ng3+ Bf1 Ngh5 Qf3 g3 Kc2 d1R Bc4 f1N Ra3 Rg8 h8B Rg5 Rd2 Qc7 Qd8 Be8 Nf2 Qd7 Ne4 Qh3 Nc5 Re1 Rc7 Re4 Rg7 Reg4 Rc3 Rf5 Qd7 d3+ Kd1 Rfg5 Na6 Rf5 Ra2 d2 Kc2 d1R Bf4 Rdd5 Bc7 Rfg5 Ra4 Rdf5 Ra2 Rb8 a8R Na7 Ra4 Rb6 Ra2 Re6 Rb8 Ree4 Rb6 Ref4 Rd6 Rd4 Bd3 Rc4 Rd4 Ra4 Bc4
5NNn/nb3Np1/k2Q4/bq2qn2/2N1B1b1/3KQ1QB/b4q2/2Q1q1nR b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a5 Qd3 axb4 Qd1 d3 a4 f5 Ne2 b5 Ra2 d5 Rb2 d4 Ng1 Ra6 Nd2 Rd6 Nb1 Rd5 exd5 Qc7 Kd2 Qd6 Ke1 Qd8 g4 Bb7 f4 Bc6 Rb3 Ba8 Rc3 Bb7 Rc6 Ba6 Re6 Bc8 Re4 fxe4 f5 h6 Bg5 hxg5 f6 Rh3 Kd2 Rf3 Ke1 Rf5 gxf5 Qb6 Bg2 Qd6 Bf1 Qd8 Kd2 Kd7 c4 Kc7 h4 Kb7 f7 e5 a5 e3+ Ke1 b3 f6 e2 Kd2 e1Q+ Kc1 d2+ Kb2 e4 c5 d3 Kc3 b2 d6 g4 c6+ Ka6 d7 g3 c7 b4+ Kc4 e3 h5 b3 h6 g2 h7 e2 h8Q Nc6 Qh4 Qf2 Qc1 d1B Na3 b1B Nh3 g1N Ng5 e1Q Bh3 b2 Qg3 Qde8 d8Q d2 Qd4 Bb7 c8N Bg4 Qde3 d1N Ne7 Nh6 Ng8 Ba2+ Kd3 Qe5 Nc4 Bb4 f8Q Nf7 Qd6 Nh8 f7 Bd2 f8N b1Q+ Qc2 Qb6 Nf7 Na7 Qc1 Qc6 Qef4 Ne3 Qfd4 Nf5 Qde3 Kb5 a6 Qcc5 Qe2 Ba5 Qee3 Nc6 a7 Ka6 a8B Qb5 Qb4 Na7 Qe7 Bc8 Be4 Bb7 Qd6+
2KN1rQ1/kpb1r1Q1/N6Q/Bb2brR1/1Q4p1/5rN1/1b1B1q1b/1N1n4 b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 b4 a5 a4 axb4 Ra3 bxa3 g4 h5 Bh3 f5 Nc3 f3 Qb3 f4 Nb1 Nc6 Qc2 Nd4 Qd1 Nf5 gxf5 Rh7 Bg4 hxg4 Kf1 Rh6 Ke1 Rh8 Kf2 Kd7 e4 c5 d4 Kc7 h4 Kb6 e5 g5 e6 a2 d6 a1B a5+ Ka7 a6 c4 e7 c3 e8Q c2 f6 Bb2 d7 Bc5 f7 Rb8 f8Q Bca3 d5 Rh7 d6 Qe7 d8B Nh6 d7 Nf5 h5 Qf7 h6 Bd6 Rh5 Bc7 Qg7 Bbe5 Qd2 Ne3 Qb4 Qf8 Bd2 c1B Ne2 Bcb2 Ng3 Nd1+ Kg1 f2+ Kh2 Qf5 Qeg8 f1R Kg2 f3+ Kh2 Rh8 h7 f2 Qh6 Re1 Qgg7 Rf8 h8Q f1R Qhg8 Rf3 Kg2 Bcd6 Ba5 Bc7 d8N Bd7 Kh2 Bb5 Kg2 Ra8 Kh2 Kb8 a7+ Kc8 Qd4 Qc2 Qc6 R8f6 Qb4 Bed4 Nf7+ Re8 Qa6 Bde5 Kg2 R3f4 Qad6 R6f5 Qdh6 Qc5 Ne2 g3 Kh3 g2 Ng3 g4+ Kh4 Rf6 Kg5 R6f5+ Kg6 g1B Rg5 Rb8 a8N Rf3 Nh1 Qf2 Ng3 Bd8 Nc7 Bh2 Na6 Bdc7 Nd8 Bf6 Kf7 Re7+ Kf8 Bfe5+ Nf7 Rd7 Ke8 Ra8 Nc5 Kb8 Na6+ Ka7+ Nd8 Bb8 Nf7 Rc7+ Kd8 Re7 Qhd6 Re6 Qc6 Bbc7+ Kd7 Rae8 Nd8 R6e7+ Kc8 Ref8 Qch6
2N1q3/K1n1pb1B/7n/Q2q4/3N1kp1/2pqRqrN/3N1Q2/Q1Rb1Q1b b - - 0 1 legal: proof: c4 a5 e4 d5 b4 dxc4 a4 axb4 e5 b5 e6 b3 Ke2 b4 Ra2 Ra5 Ke1 fxe6 Ra3 e5 Ra1 e4 f4 Rb5 axb5 g6 g3 Bh6 Bb2 Bg5 f5 Bf4 Bf6 h6 Bg5 hxg5 gxf4 Qd4 Ke2 Qd3+ Ke1 Qd8 Ke2 Kf7 Ke3 Kf6 d4 c5 h4 b2 d5 b3 h5 g4 b6 c3 b7 c4 Kd4 e3 Kc5 e2 d6 e1Q d7 g5 h6 c2 h7 c1Q Ra5 g3 Bd3 c3 Nd2 b1B Nh3 Qe8 Kb6 g4 d8Q b2 Ka7 g2 Re5 g1Q+ Re3 Qgf1 Qa5 Na6 b8N Qf3 Nc6 Qee2 Nd4 Nh6 Bc2 Rf8 h8N Ba2 Nf7 b1B Nd6 Bb7 Nc8 Nc7 Bd3 Bc2 Be4 Qb2 Qa1 Bcb3 Rc1 Bd1 Bb1 Qd3 Bc2 Kf7 f6 Kg6 f7 Qbb5 f5+ Kh5 f6 Qbd5 Bb1 Kh4 Bc2 Kg3 Bb1 Rh8 f8Q Bc4 f7 Rh7 Qg8 Ba8 f8Q Rf7 Nf2 Kf4 Qg6 Rf5 Qga6 Bcb3 Qff6 Ba2 Qfb6 Rh5 Bc2 Rh3 Qc4 Rg3 Qcb5 Q3c4 Bh7 Qd3 Qbb1 Qe5 Q1b5 Bf7 Qb5a6 Qed5 Qbb2 Qc2 Qf1 Qd3 Q1a3 Qb3 Nb1 Qfe2 Qaa1 Bh1 Qd2 Qf3 Qde1 Qbd5 Nd2 Qd3e4 Nh3+ Ke5 Ng5 Kf4 Qef2 Qd3 Nh3+
2R1K3/r1r3b1/2B5/R1b1nbk1/bR1nb3/r1QpRN1b/3q2Bb/3BB1Q1 b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Nc3 b5 axb5 gxh4 Qb3 dxc3 Qc2 Qa5 Qd1 Qd8 Kf2 Ke7 Kf3 Kf6 Kg4 h5+ Kh3 d5+ g4 a5 e4 a4 b4 d4 b6 c2 b7 f3 c5 f2 c6 a3 c7 a2 b5 Rh7 b6 Ne7 Be2 f1R Rb1 a1B Bd2 c1B Rb5 Nd7 b8R Nf5 b7 Ra7 e5+ Kg6 Bc3 Bf4 g5 d3 Qd2 Bc5 e6 Rb1 e7 Rb3 e8B Rba3 Bd1 Bfd6 Kg2 h3+ Kf3 h2 Ke4 h4 Kd5 h3 Kc6 Qf6 Bb4 Qb2 Nf3 Bf4 Rf1 h1B Ra5 h2 Re1 Bg2 Ra8 h1B b8R Bh2 Re3 Kh5 Qc1 Kg6 Be1 Qd2 Qc2 Bh8 Qc3 Ne5+ Kb5 Be6 c8B Kh5 g6 f6 Bc2 Rhc7 Bb7 Bb3 Bd7 Bh3 g7 Kg4 g8Q+ Kf4 Qd5 Bg7 Nh4 Kg5 Qg2+ Bg4 Qg1 Bg2 Bd1 Bc2 Ra6 Ba4+ Ka5 B2h3 Bg2 Nd4 Rb4 f5 Rc8 f4 Be8 f3 Bd7 Be7 Kb6 f2 Ra5 Bf5 Be8 Be4 Bb5 Bhf5 Bd7 Bef8 Bc6 Rf7 Bb7 Be7 Kc7 Bc5+ Kd8 Re7 Bc6 Rec7 Ke8 f1B Bgf3+ Ng4 Bh1 Bh3 Bg2 Ne5 Nf3+
1Q4N1/N1b5/2NbqpK1/r1n2r1n/1r1NQ2Q/2B1nQ2/1rbB4/1k1r1rR1 b - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 a3 h5 Bh3 g6 g5 b5 Bg4 hxg4 a4 f3 axb5 Rh7 Ra6 Rh4 Rf6 Rh8 Rf5 gxf5 Be3 f4 Bd2 Rh3 Bc1 Rh8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 d5+ Kd3 Kf5 c4 a4 c5 a3 c6 g3 c7 f2 g6 a2 g7 a1R e3 f3 h5 g2 b6 Qf6 b5 R8a2 h6 Rb2 h7 Na6 b7 Ra5 Ne2 g1B b8N Bh2 b6 f1N b7 f2 e4+ Ke5 Nbc3 Bf5 c8N Ne3 Qd2 f1R Ne7 Rb4 Qd1 Nc5+ Kd2 Rf3 Nb5 d3 Na7 d4 Rg1 Qg6 Qf1 Nf6 g8Q Bf4 Qg7 Rf2 Qg8 Nh5 Qg7+ Qf6 Qg4 Rg8 h8B Rg5 Ng8 Be7 Qfg2 Bd8 Q4g3 Bc7 Q2f3 Rf1 Ba3 Rfb1 Bc1 R1b2+ Ke1 d2+ Kf2 d3 Qh4 d1R Bg7 Re1 Nbc6+ Ke6 b8Q d2 e5 d1R Bd2 Bc2 Bh8 Qg6 Bf6 Qe4 Bh8 Kd5 e6 Kc4 e7 Kb3 e8Q Ka2 Bhc3 f6 Ned4 Bfd6 Qg6 Qe6 Qge4 Ng4+ Kg2 Kb1 Kh3 Ne3+ Qhg4 Ng7 Kh4 Rf5 Qh5 Rf1 Qg5 Ne8 Kh5 Ng7+ Kg6 Nh5 Qgh4
2r1RK2/1bBb3N/1b2B1b1/Bb5N/q2bQNB1/p1n1Qq2/6kr/1N1r2n1 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 a5 Kf5 Kd5 h4 g5 b6 a4 b5 a3 c3 d3 h5 d2 h6 g4 b7 Qh4 h7 Nc6 b8B Bg7 b6 Nd4+ Kf4 f5 b7 Nf6 e3 Ne4 Bb2 Nf3 Nh3 g1B Qc2 d1B Qd3+ Bd4 Ng5 g2 Be2 Bc2 Bc7 d6 b8Q Bb7 Qd8 Rc8 Qe8 Qf2 Bc1 g3 Bd2 Ba4 Rh6 Bd7 Re6 Qf1 Qe7 Qd1 Qe8 Qa4 Qg6 Bf2 Re8 g1R Be1 g2 c4+ Kc5 Bd2 d5 Bda5 Nc3 e4 Rd1 e5 g1Q e6 Qf1 e7 Ng1 Bg4 Qg2 Qe3 Qh1 Nf7 Qf3+ Kg5 f4 Qge4 Kc6 Kg6 Bb6 Qf5 d4 Kg7 d3 c5 d2 Qg6+ Kd5 c6 Nge2 Ng5 Ng1 Qe2 Bfc5 Qe3 Bd4+ Kf7 Rf1 Qc2 d1B Qg6 Bc2 Qge4+ Kc5 Be6 Rd1 Bg4 Qg3 Be6 f3 Bg4 f2 Be6 Rg8 h8N f1B Nh7 Bb5 Ng6 Qf3+ Nf4 Rg2 Kf8 Rgd2 Rd8 Rh2 e8N Bcd3 Ng7 Bc2 Bg4 Kc4 Nh5 Bd3 Qe7 Bg6 Re8 Bdc5 Qc1 Kd4 Be6 Ke4 Qc2+ Ke3 Qe4+ Kf2 Bg4 Rd6 Qe3+ Kf1 Q7e4 Bd4 Qd5 Bf6 Bb8 Rd8 Qde4 Rd1 Bd6 Bfd4 c7 Bdf5 c8B Be6 Bd7 Rc8 Bc7 Bef5 Bc6 Bd7 Bd5 Bgf5 Ne2 Kg2 Be6 Bg6+ Nef4+
Rqrbb3/n2q3q/1QN4k/bn3Q2/KQB2q2/bB3B2/p3N1Br/2Q3b1 b - - 0 1 legal: proof: f4 b5 b4 f5 d4 g5 g4 c5 a4 bxa4 e4 fxe4 dxc5 h6 f5 Qb6 Bf4 Qa5 Ra3 Qd8 Rg3 gxf4 g5 Kf7 g6+ Ke8 Rg5 hxg5 Kd2 e5 Kc3 d5 h4 a5 g7 Kf7 f6 Kg6 c6 a3 Kb3 d4 c4 d3 c7 g4 c5 g3 f7 a2 b5 a1Q b6 f3 b7 g2 c6 a4+ Kc4 d2 Kb5 f2 h5+ Kh6 Qb3 d1Q Qa3 e3 Nc3 e2 Ne4 e1B Ne2 g1B N4g3 e4 Qc1+ e3 Bg2 a3 Nd4 f1Q+ Nge2 Ne7 g8B Bd7 c8B Na6 b8Q a2 Qb6 Be8 Bg4 Nc8 B4f3 Bh4 Rh3 Qd3+ Ka4 Qb2 Rh2 Ba3 f8Q+ Kg5 h6 Qh7 Bf7 Na7 Bc4 Qdd7 Qfb4 Nc7 Bb3 Ncb5 c7 Rc8 Nc6 Kg6 Rh1 Bd8 Rh4 Rb8 c8B Ra8 Bb7 Rc8 Ba6 Qe5 Rf4 Qb8 Rf8 Kg5 Nf4 Qc4 Ne2 Qcf4 Rg8+ Qhg7 h7 Kh6 Ng3 e2 Rf8 e1B Ne2 Rg8 h8Q+ Qh7 Qe5 Rh8 Qf5 Bc3 Qbe4 Ba5 Qb4 Nd4 Bac4 Ndb5 Bf1 Rg8 Bh3 Rg2 Rh8 Rh2 Bhg2 Nd4 Rf8 Ndb5 Rf6+ Qg6 Ne5 Bf2 Qd4 Bg1 Ra6 Nc6 Ra8 Nca7 Nc6 Qgh7 Qb6
3N1R2/k1Q5/r3rq1p/3bb2K/Qnb1n2R/4RN2/1b3q2/BRNn1nbN b - - 0 1 legal: proof: a4 c5 d4 cxd4 h4 e5 f4 exf4 h5 b5 e3 d3 axb5 g6 c3 gxh5 Be2 h4 Bf3 Be7 Bd5 Bb4 Bb3 Bf8 Bc2 dxc2 Ke2 d5 Kf3 Kd7 Kg4 Kc7+ Kh5 Kb7 b4 a5 g4 f5 b6 h3 e4 h6 b5 d4 g5 a4 e5 h2 g6 d3 g7 d2 e6 f3 e7 a3 e8R f4 c4 a2 c5 f2 Ne2 f1Q Bb2 c1B Re3 f3 Qa4 d1N Nd2 f2 Nf3 Bf5 Rb1 Qf6 Ba1 Bb2 Nc1 Na6 c6+ Kb8 b7 Be6 c7+ Ka7 c8R Bc4 b8N Bc5 Rd8 Qg2 Rde8 f1N Rf8 Qf2 b6+ Kb7 Ree8 Nb4 Nc6 Ra6 Nd8+ Kb8 b7 Ka7 Re3 Be5 Rg1 h1B Rg4 Bb2 Rh4 Bcd4 Ne5 Bhd5 Nf3 Bb6 b8N B6d4 Nd7 Be5 Nc5 Bbd4 Bc3 a1B Ne4 Bb2 Ng3 Qb6 Nh1 Nf6+ Kg6 Ne4+ Kh5 Qf6 g8Q Rh7 Qe6 Re7 Qec6 Re6 Qc8 Bh2 Qcc6 Bg1 Qd6 Be5 Qdc6 Ba3 Ba1 Bab2 Qc7+
B1BB2B1/4bR1n/Q1K1n2Q/N3b2q/1qk1p1Q1/b3rn1q/3qR3/4br1Q b - - 0 1 illegal: No possible last move
3Q1qR1/1B1n2p1/1r1Q4/nQ1N1q1k/1n6/q1R3Q1/2bKbBrr/RR2r2q b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 g3 cxd4 Nf3 e5 Ng1 exf4 Kd2 f3 Bb2 f2 Ba3 h5 Nc3 f5 Bc1 f4 Nd5 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 e4 Kf7 h4 Kg6 c4 d5 a4 b5 a5 b3 f5+ Kh5 c5 b4 f6 g3 c6 d3 f7 b2 f8Q b1N+ Ke3 d2 c7 b3 a6 g2 e5 b2 e6 d4+ Kd3 Qd6 e7 Bf5+ Kc4 d3 c8Q Qa3 e8R Nc6 a7 Nb4 Qcc5 Nf6 Re3 Nd7 Qfd6 Rab8 a8Q Rb6 Qe1 d1B Qd8 d2 Ne2 g1R Nc3 Rg2 Nd5 Bfc2 Qb5 Be2+ Rd3 d1Q Be3 Rh6 Kd4 Qc1 Rc3 Nd2 Rg1 b1R Rh1 Rg5 Bg2 f1Q Qeg3 Nc4 Bf2 Na5 Rg1 Qcd1+ Ke3 Rh8 Bh1 Qh3 Bg2 Qf5 Rh1 Qg1 Kd2 Qh2 Rg1 Qh1 Re1 Rb2 Reb1 Re8 Bd4 f2 Be3 f1Q Bf2 Re6 Bf3+ Kh6 h5 Qf8 Be4 Qfh3 Bg2 Qhf5 Bf3 Kh7 h6 Kg6 Be4 Kh5 h7 Re5 Qe3 Rg1 Qg3 Re6 h8R+ Rh6 Rg8 Re1 Ne7 Rg6 Bb7 Rg4 Qgf4 Rg2 Nd5 Rb3 Rc4 Rh3 Rc3 Rhh2 Qg3
2B3B1/qpK2n2/Q1Q2Q2/NRrq1B2/b4rn1/1q4qk/2QB1bn1/1N2b1b1 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Ra2 exf4 Ra3 bxa3 Kf2 Kd7 Kf3 h5 Ke4 c5 Ke5 f5 d4 a2 e4 a1B g4 f3 a5 h3 g5 f2 g6 f4 g7 f3 d6 h4 a6 h2 a7 h3 Bb2 c4 d5 c3 Bc1 c2+ Nc3 Qa5 Ne2 Nc6+ Kf4 Rh4+ Kf5 Rf4+ Kg6 Nd8 e5 Nf6 g8B Ng4 Qe1 Nf7 Bd2 c1B Nb1 Bd4 Qd1 Qc3 Rg1 h1Q Qc2 h2 Bh3 f1Q Rg3 Bc5 Nd4 f2 Nb3 Qfg2 Na5 f1N Rf3 Qb4 Rb3 Qhg1 Rb2 Rb8 a8Q h1Q Qa6 Qg3 Rb3 Qc4 Rb5 Be7 Kg7 Bh4 Kf8 Bf2 e6+ Kd8 d7 Qcb3 Qe4 Nfe3 Qc2 Ng2 Qac6 Be1 Qa6 Qc5+ e7+ Kc7 Ke8 Bf2 Nc6 Kd6 Na5+ Ke5 d8Q Qa7 Qd7 Bb2 Qdc6 Bbd4 d6+ Ke6 Kf8 Bd7+ e8B Bc5 Nc3 Kf6 Nb1 Kg5 Ke7 Rd8 Bc3 Rc8 Bd2 Nh8 Bh5 Nf7 Bg6 Be1 Bf5 Bg1 Qd5 Be8 d7 Rc5 d8Q Bef2 Qdb6 Bd7 Qf6+ Kh5 Rb4 Ba4 Qdc6 Be1 Kd7 Nf2 Qac4 Qg6 Qa6 Ne3 Qf1 Qhd5+ Kc8 Ng2 Be6 Qgd3 Bhf5 Ng4 Rb6 Bhf2 Kc7 Qh3 Bc8 Qhg3 Qe5 Kh4 Qa6 Kh3 Qf6 Qgc3 Rb4 Qg3 Rb5
1r3n2/NQn1Q3/qnB1r2k/1RrbBrp1/4Q3/3K4/1NrNr3/qNr4Q b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 c4 Kf8 e4 b5 h4 d5 h5 g5 e5 Kg7 c5 b3 f5 b4 e6 b2 c6 b3 c7 d3 a5 d4 e7 g3 e8Q g2 a6 Qd6 f6+ Kh6 f7 Nf6 f8N Nh7 a7 Qa6 Be2 f1Q Qe1 f2 Qf7 Nd7 Nh3 g1R Qe7 Bb7 c8Q Bd5 Qc4 Rg2 Qc3 Re8 a8N Nb6 Ne6 Nf8 Nef4 Rh2 Qb7 Re6 Qcc7 Qg1 Qd6 f1R Nf2 Rh7 Ne4 Rc7 Qh4 Rc5 Qde7 Rff2 Nc7 Rhg2 Ng6 Rf5 Nb5 Rh2 Nf4 Qf1 N1a3 b1R Bb2 Rbc1 Na7 Qg1 Ba1 b2 Nb1 Qf1 Rg1 Re1 Rg2 Qg1 Bf3 Rec1 Qe1 R1c2+ Kd1 d2 Nd3 Qh1 Ke2 Qg1 Qh4 Qc1 Qf4 Qg1 Qe3 d1R+ Ned2 Rdc1 Qe4 Qh1 Na3 b1R Bb2 Ra1 Nb1 Ra3 Bc3 Rb3 Ba1 Rbb5 Nb2 d3+ Ke3 Rb3 Rg4 Re2+ Kd4 Rff6 Rf4 Rf7 Rf5 Qd1 Re5 Rf5 Qc8 Ba8 Qec6 Nd5 Nf1 d2 Na4 R5c3 Na3 Nc7 Qc4 Rb7 Rb5 Rb1 Qd5 Rc4+ Kd3 Rb8 Be5 Rc5 Nb2 Qe1 Bh1 d1N Nd2 Ne3 Bg2 Bc6 Qb7 Nc4 Qd4 Nb6 Qb4 Bd5 Bf3 Bb3 Bc6 Bd5 Qe4 Nc4 Bg7+ Kh7 h6 Kg6 h7 Nb6 h8Q Rd1 Bc3 Rb1 Qh3 Ra1 Qhf3 Kh6 Be5 Qb1 Qf1 Qa2 Qg1 Rac1 Nab1 Qa1 Qgh1+
k2n4/nB1qN1Q1/1Br2Nq1/1b1Bq1r1/Q4p2/1q1n2B1/1n3nK1/1q1RN1N1 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 g5 a5 Bd2 axb4 Be3 Qf6 Bc1 Qd8 a4 h5 Ra3 f5 Rg3 Be7 Rg4 Bf6 gxf6 hxg4 Kf2 d5 h4 Kd7 c4 Kc7 e4 g5 h5 b5 a5 Kb7 f7 d3 f8N d2 c5 g3+ Kg2 f3+ Kh3 f4+ Ne6 g2 h6 g4+ Kh2 g3+ Kh3 d4 e5 f2 h7 d3 Qe1 d1N Qe2 d2 Qg4 b3 Be2 f1Q Bd3 b4 Be2 b2 Bb5 b3 Nc3 b1Q Ba4 b2 Ne4 Nc6 Nd4 Qe2 e6 Ra6 e7 Na7 e8Q Nh6 c6+ Ka8 c7 Rg8 h8B Nf7 Nc2 Qd7 Bb3 Rc6 a6 Nd8 Bf6 Rg5 Ne1 Qb5 Bf7 Qe5 Bd5 Qd3 Be7 b1Q Nf6 Qdb3 Bc5 Nb2 Bf2 d1N Bce3 Bb7 c8N Nd3 Bb6 N1b2 Ne7 Bc8 Ne2 g1N+ Kg2 Nh3 Ng1 Nb5 a7 Ba6 Kf3 g2 Bg3 Rg6 Qg5 Nhf2 Qh6 Rg5 Qg7 Kb7 a8B+ Kb8 Qgh8 Na7 Bb7 Bb5 Qg7 Qdf5 Ne2 g1Q Qd7 Qg6 Qe8 Qh2 Ng1 Qh3 Qd7 Qg4+ Kg2 Qgd1 Qf5 Qg4 Qe4 Qd7 Qa4 Rg4 Nef3 Qc8 Ne2 Rg5 Rd1 Qcf5 Neg1 Qd7 Bc8 Ka8 Ne1 Qec3 Ba6 Qe5 Bb7+
qQ1r3B/k1K2pb1/1N2brR1/5NBr/qN1QN2n/qBB4q/8/2qbb3 b - - 0 1 legal: proof: g4 a5 h4 e5 a4 c5 f4 exf4 d4 cxd4 b4 axb4 g5 Nc6 h5 Nh6 gxh6 Ne7 Ra3 Ng8 Rg3 Ra6 Rg5 Ra8 Rg6 hxg6 Kd2 b5 Kd3 d5 c4 Kd7 e4 Kc6 a5 Kb7 c5 g5 e5 b3 e6 g4 a6+ Ka7 c6 g5 h7 b2 c7 f3 h6 b4 e7 g3 e8N b3 Rh3 g2 Be3 f2 Qc2 g4 Bc1 g3 Qd1 Bg7 Nd6 Be6 c8Q Ne7 Be2 f1Q Ne8 Ng6 Nc7 Nh4 Nc3 b1R Bf4 b2 Nf3 g1B Bg5 g2 Ne4 Bf2 Rg3 g1Q Qd2 Qc1 Bd1 Qh1 Bb3 Be1 Qf2 Qd7 Qe3 Rd8 h8B Ra1 h7 Ra5 Rg2 Qe7 Rg1 Qa3 Rg3 Qh3 Qd2 Kb6 a7 Qca1 Na6 b1Q+ Qcc2 Rab8 a8N+ Ka7 Nb6 Qbc1 Nb4 Rd6 Qdd1 Rbd8 Qc8 Q1a2 Nfd2 Rc6 Nd6 Rac5 Nf5 Rb5 Ke2 d3+ Ke3 d4+ Kf4 Ra5 Ne3 Qaa1 Ne4 d2 Nf5 d3 Rg2 Qa4 Qg4 Qca3 Rg3 d1B Rg1 Bf8 Bc3 d2 h8B Bg7 Rg2 Bd5 Rg1 Rf6 Ke5 Q1c1 Qf4 Qc6 Qf2 Qa8 Qd4 Be6+ Qd5 Rg8 Kd6 Rd8+ Kc7 Rb5 Qd4 Ra5 Bf4 Rad5 Rg6 Rb5 Nfg3 Rh5 Be3 Bc2 Bf4 d1Q Nf5 Qdg4 Bh6 Bd1 Bg5 Qa4 Ne7 Qgf3 Nf5 Qfe3 Qd3 Qca3 Qd4 Qec1 Qb8+
2n4q/3K1bRn/NqQNp3/q2Q1rrR/Q3NN2/3QB1n1/2q5/n3nk1n b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e3 axb4 Bg2 e6 Be4 fxe4 g5 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Kf2 g4 Kf1 Ne7 Ke1 Ng8 Ke2 Kf7 a4 Kf6 h4 g5 c4 b5 c5 d5 c6 e3 Kd3 e2 h5 e1N+ Ke2 d3+ Ke3 d2 Kd4 b3 Kc5 d4 c7 g3 a5 d3 a6 b2 a7 g4 h6 b4 h7 g2 Qb3 d1Q Rh2 d2 Nf3 g1Q+ Kb5 g3 Ng5 g2 Rh4 Qh2 Ra3 g1N Rg4 Nc6 Qe3 b3 Ra4 Ne2 Rg1 Qc2 Qd3 d1N Nd2 b1N Nc4 b2 Be3 Nce7 Ra5 Nd2 Nd6 Nb3 Rg3 Bb7 c8Q b1Q Qc6 Nc8 Rg4 Rb8 a8N Ng3 Nc7 Nf2 Na6 Nfh1 Qdd5 Qba2 Qd3 Na1 Nge4+ Ke7 Qdd5 Nf6 Rg5 Re8 h8N Rf8 Rg7+ Rf7 Qd3 Nh7 Qcd5 Qhf2 f6+ Kd7 Ng6 Qh8 f5 Qg1 Q3c4 Bc6+ Kc5 Rb3 Nf4 Rd3 Rb5 Qa5 Qc3 Rd2 Qd3 Rf2 Qcc4 Re7 f7 Re8 f6 Rg8 Rg6 Rf1 f8Q Rg7 Rg4 Rg5+ Qd5 Rf2 f7 Rf1 Qg8 Ke7 Qc3 Be8 f8Q+ Kd7 Qff5 Bf7 Qd3 Rf2 Qfd5 Rf1 Ne2 Rff5 Nf4 Ke7 Kc6 Qgf2 Nec5 Qg1 Qcb3 Kf6 Kd7 Qgf2 Qc6 Ke5 Qd8 Qg1 Rb7 Qgf2 Rh4 Qg1 Nce4 Qgf2 Bd2 Qfc5 Rh5 Qcb6 Qdb5+ Kd4 Bc1 Qad2 Q3a4+ Ke3 Qbd5 Kf3 Rc7 Qdb4 Be3 Q4a5 Nd3 Ke2 Nf4+ Kf1 Qf6 Qbb4 Qfc3 Qbb5 Qcd3+ Ne2 Q5b3 Bg8 Ke8 Qbb6 Rg7 Bf7+ Kd7 Rg2 Qd2 Rgg5 Qbd5 Neg3 Q2d3+
6Q1/1n3RQ1/pN1qb2r/Q1r1Bn2/1rnk4/3N4/p1QN1rb1/K1brR1N1 b - - 0 1 illegal: No possible last move, all moves rejected
1qn2nK1/q2b1Nb1/r2rQQ2/2B5/3QB1R1/Bp3rQB/4bq1p/2b1kR2 b - - 0 1 illegal: No possible last move, all moves rejected
2n1rrbN/1b1R1Q2/n7/2n1r3/2N1k3/pQbNqpKR/2q3N1/B1rR1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 c4 Ke7 h4 Ke6 b4 Ke5 e4 d5 c5 f5 h5 a5 c6 g5 c7 a4 b6 f4 b5 g4 b7 d3 b6 a3 h6 f3 h7 d4 Nd2 Bg7 Rh3 Na6 b8R Ne7 b7 Rf8 Ne2 g1R+ Nf1 g2 Kf2 d2 h8N d3 Nfg3 Re1 Nh5 g1R Nef4 Rh1 Qa4 d1B Rb1 Re3 Bb2+ Qd4 Qc4 d2 Ba1 Bb3 Qc3 d1Q Nd3+ Ke6 e5 Kd5 e6 Qc2+ Kg3 Qa7 Kh4 g3 Qb4 Bc3 Nhf4+ Kc6 Rc1 Re5 Re1 Qe3 Rb1 Bd7 Rd8 Bc8 b8R Re1 Rd7 g2 Nc5 g1N Ng2 Bc4 Nd3 Ne2 Rb5 Nc1 Kg3 Bb7 c8N Ba2 Nd6 Nb3 Rb6+ Kd5 Rc1 Re2 Rf1 Re1 Qa4 Nbc5 Rb1 Bc4 Qb3 Rad8 Rc1 Nc8 e7 Kd4 e8Q Bg8 Qh5 Rde8 Nc4+ Ke4 Qf7 Na7 Rd1 Nc8 Rd2 Rc1 Rdd1
bqnr1rn1/3n1B2/Q1bQK3/RRr1N2b/4Rp2/8/Q1p3Qb/NR1r3k b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 e5 Ba3 exf4 axb5 d5 b6 dxc4 b5 Nh6 Bd6 Ng8 Bb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 h5 e4 b3 g4 c5+ Kc3 Ke5 d3 f3 d4+ Kf4 b7 Kg3 d5 b2 b6 h3 e5 h4 e6 f2 e7 h2 e8Q h3 g5 Bd6 g6 Nd7 Na3 b1R Qb3 Rd1 b8R Bb7 g7 Bc6 Be2 Kg2 b7 f1N Nf3 Ng3 Re1 h1B Qg6 h2 Ne5 Qb6 Re8 Rd8 b8R Qa7 Rb6 Qb8 Nc2 Bc7 d6 Bf3 Qh6 Bh5 Qa2 Ne4+ Kb2 c3+ Kb3 c4+ Kb4 f4 Rb5 Bb6 Bg4 Bf2 Be6 Bg3 Re7 Rf8 Bf7 Rd8 Rb1 Rf8 Na1+ c2 Qg6 c3 Kc4 Rd8 Qa6 c1R Re2+ Kg1 Ra2 B1f3 Qg4 h1B Raa5 Rc2 Qe6 Bh2 Qd5 Rcc1 Qd2 Bhg2 Kd5 Kh1 Ke6 c2 Qc3 Rd5 Qb2 Rc5 Qa2 Rd1 Re8 Ndf6 d7 Nd6 Re7 Bc6 Re8 Ba8 Re7 Rf8 d8Q Nc8 Qdd6 Bgc6 Re8 Nd7 Re7 Nh6 g8Q Rd8 Qg7 Rhf8 Nd3 Ndb6 Kf6 Re1 Re4 Ng8+ Ke6 Rd1 Ne5 Nd7 Qg2+
NbR5/4QQ1b/qRp2K1R/1q2B3/nn6/1n5k/4Rpbr/BnbB2bB b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 b5 Na3 h5 Ng1 f5 Nc2 f4 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Bd6 Ng4 hxg4 Qa4 Bc5 Qd1 Bf8 Kf2 Kd7 d4 g5 a4 c3 h4 b3 e4 b2 d5 b1N e5 b4 h5 b3 f6 b2 f7 c2 d6 Ke6 d7 Kf5 e6 Nh6 a5 Nc3 e7 b1B e8R Bb7 a6 Qc8 d8Q Nc6 a7 Bd6 a8B Nb4 Ra6 Na4 Bb2 c1B Re2 B7e4 Rb6 Qa6 Bd5 c6 Qb3 Bb8 Ba1 Qb5 Nh3 g3+ Kg1 Kg4 f8R g2 Kf2 g1N Qe7 Bbc2 Rc8 Nf5 h6 Nd4 h7 Bb1 Qc4 Nb3 Bg2 Kh4 Bg8 Qa6 Qcf7 Bd5 Rh2 Bg6 Re6 Ne2 Bh1 Nec3 Re2 Nb1 Rg2 Kh5 Be5 g4 Ng5 Kh4 Ne6+ Kh3 Nc7 Bde4 Na8 g3+ Ke1 f2+ Kd1 Nd3 Kc2 f1Q Ba1 f3 Be5 f2 Rg1 Nab2 Rg2 Na3+ Kc3 Nb4 Rg1 Na5 Kd4 g2 Bd6 Nb1 Ke5 Nb3 Kf6 Na4 Be5 Bgf5 Qg6 Na1 Bb3 Qb5 Bd1 Nb3 Qgf7 Qa6 Re1 Qfb5 Re2 Bg6 Rge1 g1B Rf1 Rd8 h8B Bh7 Bg7 Bg2 Rfe1 Bh2 Rg1 Rh8 Ba1 Bge4 Rg6 Bg2 Ke6 Bg1 Bge5 Bb2 Kf5 Bc1 Kf6 Kh4 Bab2 Bg8 Qd5 Rh5 Ba1 Bh7 Rh6 Kg4 Qdf7 Rh2 Rg6+ Kh3 Rh6+
2R1QBq1/N1np3N/1R2q3/n1N1q3/2R1r1np/QN3qq1/1n2R2r/2K1b1k1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 g5 f5 a5 g3 axb4 f6 g4 Kf2 exf6 Ke1 f5 Qd3 f4 Qd2 Ra3 Qd1 Ra8 Bg2 b6 Bf3 gxf3 g4 Bb7 g5 Bd5 h3 Bb3 Be3 Be6 Bc1 Bg4 hxg4 Qf6 Ba3 Qe7 Bc1 Qd8 Kd2 Ke7 c4 Kd6 a4 Kc5 e4 f5 e5 h5 g6 b3 g5 f2 g7 f1Q a5 b5 e6 f3 a6 f4 e7 b4 e8Q f2 a7 d3 g6 Kd4 c5 f3 c6 b2 c7 b3 c8R Na6 Rc2 Ne7 g8R Qh3 g7 f1N+ Ke1 Nc7 Rhh2 Nc6 Qee2 d2+ Kf2 Ne3 Nc3 b1Q Na4 Bb4 Ba3 b2 Qc1 Qa2 Rb1 h4 Rc3 d1N+ Ke1 f2+ Kd2 f1Q Nf3+ Ke4 Nd4 Qg3 Rf8 Qff3 g8N Rb8 a8N Na5 N8b6 Qc8 Qa6 Ng4 Nf6+ Kf4 Rd8 Re8 Qa8 Re4 Nh7 Qe6 Re8 Qd8 Nc8 Rb6 Rg8 Qg5 Re8 Qgg8 Na7 Rd6 Qd8 Rd5 Qe7 Rc5 Rc8 Rb5 Ra1 b1Q Qe8 Rb6 Ra2 Qa1 Rb2 Rc6 Rb1 Rd6 Qb2 Rc6 Kc1 Rd6 Nb3 Rd2 Rc4 Ke3 Nd4 Rg2 Qa2 Be1 Bf8 Re2 Qb2 Rg2 Qb3+ Kf2 Qa3 Kg1 Nc5 Ra2 Rhc2 Qac3 Rbb4 Rb2 Ndb3 Qce5 Rb6 Ra2 R2c3 Rh2 Re3 Nb2 Re2
3r2N1/N1B2brB/Kn1Q1N1b/Q5rR/N5r1/B1kp1pBq/n3r1pb/8 b - - 0 1 illegal: No possible last move
2bB4/n1p3B1/1p2Qn2/R1pn1Rr1/1q1pq2k/5q1Q/1B1QNr2/2bKQ1B1 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 g4 d6 b4 axb4 e5 Qd7 Bd3 Qd8 Be4 fxe4 gxh5 Nh6 d5 Ng8 c5 dxc5 d6 e6 Nc3 Qe7 Nd5 exd5 Qf3 Qd7 Qd1 Qd8 f4 Kf7 a4 g5 h4 e3 e6+ Kf6 h6 b6 d7 b3 f5 e2 h7 g4 a5 g3 e7 g2 e8Q b2 a6 b1N h5 Nh6 a7 Bg7 Bb2+ Kg5 f6 Rf8 h8B Nc6 f7 Ng8 h6 Qf6 d8B Nc3 h7 Bh6 Ra5 d4 Qe6 Qe7 Be5 Nd5 h8Q Ngf6 Bh2 Kh4 Qd2 Rb8 a8Q Na7 Qb7 Rg8 f8B Rg5 Bg7 Qe8 Qee3 Qe4 Qc6 Qf3 Qce6 Qe4 Qd1 Ra8 Kd2 e1Q+ Kc1 Rb8 Ne2 g1Q Qd2 Qgg3 Rf1 Qgf3 Bg1 Ra8 Qe3 Qb4 Qed2 Rg2 Qh7 Rf2 Qe1 Rb8 Kd1 Ra8 Qhf5 Bf4 Qd3 Bc1 Qdd2 Bb7 Be7 Rg8 Bd8 Bc8 Bh6 Rg5 Bg7 Kh5 Qh3+ Qh4 Bh2 Qd3 Ra6 Rf3 Qhf5 Qhe4 Bg1 Rf4 Rf2 Kh4 Ra5 Qg3 Rg2 Rf1 Rf2 Qga3 Qf3 Qad3 Qe3 Qda3 Rf5+ Rf2 Qf3 Qae3 Qg2 Q3f3 Qh3+
b3NrQ1/B1b3pQ/1r2q1r1/5n2/r1N2k1n/N1p1R1p1/1pb1Q2N/3RK1Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 h4 Ke7 a4 Kd6 d4 b5 e4 f5 a5 c5 h5 b3 a6 f4 a7 b2 h6 f3 h7 c4 Qd2 b4 Rh4 b3 Qe2 c3 Be3 Nd7 Na3 Qe8 Rd1 b1B Rh2 Rb8 a8N b2 Nb6 Ne7 Rh1 Rg8 h8Q Nf5 Qh7 Bc2 Rh2 Bb7 e5+ Kc7 e6 Kd6 e7 Ne5 Rh4 Ng6 Re4 Ngh4 Bf2 Ba8 Nbc4+ Kc7 Re3 Rb6 d6+ Kd7 Ne5+ Ke6 d7 Qg6 e8N Bd6 d8Q Rf8 Qb8 Bc7 Nec4+ Kd5 Qa7 Qe6 Nh3 Rf6 Ng5 Rg6 Bg1 Kc6 d5+ Kd7 Bf2 g1R+ Qf1 Rh1 d6 Kc6 d7 Rg1 Nd2 Kd5 Qa6 Rh1 Qg1 Kd4 Qe2 Rh2 Nge4 Ke5 d8Q Kf4 Ndc4 Rh3 N4f6 Rh1 Red3 Rh3 Bc5 Rh1 Re3 f2+ Kf1 Rh2 Ng4 Rh1 Nb1 Nd6 Rd5 Ra6 Nef6 Rc6 Ba7 Rb6 Rd4+ Kf5 Qdg8 Kg5 Ne8 Kf5 Nh2 Kg5 Qd2 Kf5 Ke2 f1R Qf2+ Kg5 Qg2 Rf8 Qe1 Rhf1 Qg1 Ndf5 Qd2 Rd1 Qde1 Rc1 Rd1 Kf4 Qd2 Bd3+ Ke1 Bc2 Nba3 Rb1 Qe2 Ra1 Nb1 Ra4 Nba3
1BQ5/NB1B4/bKb1b1n1/p1pq2QN/1kQq3Q/1n1R2p1/5pn1/1r1Bb3 b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 a5 b4 h5 f4 g5 c5 gxf4 g5 c6 a4 b5 Ra3 bxa4 b5 Ra6 Rg3 Rb6 cxb6 c5 Rg4 hxg4 Kd2 Ke7 Kd3 Kd6 Kc4 f5 e4 a3 h4 g3 b7 a2 e5+ Ke6 h5 a1Q g6 d3 h6 d2 b6 d5+ Kb5 d4 h7 Kd5 e6 f3 g7 d3 e7 f4 e8B f2 Qa4 d1B Bg2+ f3 Bf4 f1B Na3 d2+ Ne2 Nc6 b8Q Be6 b7 Qd4 Qc8 Nge7 b8Q Ng6 g8B Bg7 Bd7 Bh6 Qb4 Ba4+ Ka6 d1N Nb5 Bg7 Na7 Ne3 Kb7 Qg5 Kb6 Qge5 Qd2 Kc4 Qc1+ Kb4 Qc4+ Ka3 Qd6 f2 Qe7 Qed5 Bb8 Bb5 Bf3 Ng2 Nf4 Bh6 Nh5 Bd2 Qg5 Be1 Bd1 Ba4 Qc2 Ba6 Qc4 B4b5 Bf7 Rg8 h8Q Rd8 Qc2 Kb4 Qhh6 Re8 Qh4 Ba4 Q6g5 Rf8 Bg8 Rf3 Qe2 Rb3 Bh7 Rb1 Rf1 Nge5 Be4 Ng6 Qeg4 Qd2 Qe2 Nd4 Qd3 Nb3 Qc4+ Ka3 Bef3 Q5d4 Ba8 Bc6 Bb7 Qd5 Rh1 Q2d4 Rg1 Bd2 Re1 Bc3 Re3 Be1 Qc1+ Ka4 Rd3 Kb4 Qc4+
N1QQ2r1/1r1BpB1n/1b5N/4n2K/2b1p1B1/1R1QB1p1/2k2p2/nrb2bQ1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 g5 dxe4 g6 c5 Be2 c4 Bf1 hxg6 Bh3 g5 Bf1 g4 f4 g5 a4 g3 Ra2 g4 Ra3 Qd5 Rb3 Qg5 fxg5 cxb3 d4 Kd7 h4 Kd6 c4 f5 c5+ Kd5 a5 b5 h5 g2 Kf2 b2 Kg3 b3 Kh4 f4 c6 b4 h6 f3 g6 g3 h7 Na6 g7 Bh3 c7 Bg4 c8Q Nf6 g8B+ Be6 Nh3 g1B Nd2 b1B Bf7 b2 Nc4 b3 Be2 Ra7 Qd3 Rb7 Be3 Nb4 a6 Rg8 h8Q Nh7 a7 Nc6 a8B Ne5 Ng5 Bh6 Kh5 Ba2 Qf6 b1R Qg7 b2 Nb6+ Kd6 d5 Bc4 Rh2 Bh3 Rf2 Bf1 Rg2 Rc7 Bc6 Rb7 Na8 Bf2 Bd7 Bg1 Bf4 Bb6 Be3 f2 Beg4 Rd1 Qh8 b1N Rg1 Nd2 Rh1 Nb3 Rg1 Nf3 Qa1 Ne5 Qab1 Na1 Rh1 Ng6 Rg1 Ke5 d6 Bg2 Re1 Bf1 Re2 Rc1 Rb2 Re1 Rb3 Rd1 Qbc2 Rc1 Qcd1 Rb1 Ne6 Bf4 Nd4 Bh6 Nf5 Bg5 Bc5 Bc1 Nh6 Kf4 Bdf5 Ne5 d7 Bh3 Qg1 Bg2 Bh3 Bf1 Be3+ Kf3 Qd4 Ke2 d8Q Ke1 Bd7 Ke2 Qc3 Kd1 Qd4+ Kc2 Bhg4 Ra7 Qd5 Rb7 Qd3+
b3Q1qQ/N4pRB/1qN1q3/2B1p3/3b2b1/1np1NpNr/pQ5Q/k3K1n1 b - - 0 1 legal: proof: f4 b5 a4 a5 b4 e5 e4 g5 h4 gxh4 c4 bxa4 b5 d6 c5 Ra6 Ra3 Rb6 cxb6 c5 Re3 exf4 e5 Ba6 e6 Bc8 Re5 dxe5 d4 Ke7 g4 Kd6 g5 Kd5 e7 h5 e8Q a3 b7 c4 g6 a2 b6 a1Q g7 h3 Qd3 h4 Qf5 a4 Bb2 c3 Rh2 a3 Qe7 a2 Qc7 Nd7 b8Q Nh6 g8Q Ng4 b7 Nf2 Ba3 Qb2 Nd2 Bc5 Ne2 Qb6 Rg2 h2 Nc4 h1B Rg7 h3 Qe8 h2 Qc2 Nh3 Ng3 Ng1 Bd3 Rh3 Bh7 Qe7 Qb2 Qee6 Qcd8 Bf3 Qa8 h1Q Qh4 Qg2 b8N+ Bb7 Qh6 Bg4 Nc6 f3 Na7 Bc6 Qh8 Bb7 Qae8 Ba8 Nf5 Ke4 d5 Kd3 d6 Bd4 Nce3 Nc5 d7 Nb3 d8N Qg3+ Kd1 Qg2 Bc5 Qg3 Ndc6 Qg2 Nf1 Kc4 Ke1 Kd3 Qa3 Kc2 N1e3+ Kb1 Qf4 Ka1 Qh2 Qc2 Ng3 Qcg6 Rg8 Qg7 Qb4 Qf8 Rg7 Qg8 Qb5 Qc7 Qbe2 Qb6 Qb2+
n1k1Rr2/1Rp5/8/r1RK1pb1/R1B1N1N1/Nq1BNpn1/b2b4/3r2qR b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 e5 axb5 exf4 b6 d5 cxd5 a4 b5 a3 Qa4 Rxa4 Bb2 Ra8 Bg7 Bd6 Bf8 Bxf8 Kf2 Kd7 Kf3 h5 Ke4 h3 g4 f3 d4 f6 b7 a2 g5 h4 g6 h2 g7 h3 b6 Bb4 d6 f5+ Kd5 Be1 e4 Bf2 e5 Rh6 e6+ Ke8 d7+ Ke7 Na3 Rh8 Ne2 Ra6 Nf4 Bh4 Ng2 Qf8 d8R Bg5 Bd3 Nd7 b8R Qf7 b7 Ra8 Rac1 a1B Ne3 Ra5+ Rc5 Bc3 Ra8 Bd2 b8R Ba6 Rb7 Ngf6+ Kc6 Rf8 g8B Bc4 d5 Nh5 d6+ Kf6 e7 Ke6 e8N Ba2 Nf6 Ng3 Ne4 Nb6 Raa7 Na8 d7 Ke7 Rc8 Qb3 d8N Ke8 Bgc4 Ke7 Re1 h1R Nf7 h2 Kd5 Kd7 Nh6 Rf1 Ra1 h1Q Nhg4 Rd1 Re8 Qg1 Rb1 Rb5 Ra4 Ra5 Rb2 Be1 Rh2 Bd2 Re5 Kd8 Rh1 Kc8 Re8+
1k1nNNN1/qr4B1/1N3bNq/b2qB1B1/6b1/K2nq1n1/RR1q4/2B2nr1 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 g5 Bc1 f3 Qd2 h6 Qf4 gxf4 g5 h5 Bh3 Ba6 Bf5 Bc8 Bg4 hxg4 Kd2 a5 h4 d5 b4 Kd7 c4 Kc7 Kc2 f5 Kb3 d3 e4 d2 g6 d1Q+ Ka3 f2 g7 f1Q c5 f3 c6 d4 h5 a4 h6 d3 e5 g3 e6 d2 h7 g2 e7 f4 Rh5 f2 Rh2 f3 Bb2 Qc1 Ka2 d1Q Na3 Na6 e8N+ Kb8 b6 Nc5 b5 Qe3 b7 Bg4 Rb1 Q8d5+ Nc4 a3 Ne2 g1Q Nd4 Ra7 Bc1 Ne7 g8N Qdd2+ Rb2 Qh3 Ne6 f1N Re2 Bh6 Nf8 Nd3 Kb3 a2 Rh2 Qde5 Nb6 a1B Ra2 Bc3 Rg2 Ba5 Ka3 Bg7 Rf2 Qde1 Rfb2 Qeh6 Bg5 f2 Bc1 Ng3 Bg5 f1N Bc1 Ra8 c7+ Ka7 c8N+ Kb8 Bg5 Nc6 Nce7 Qd5 Neg6 Bf6 Bc1 Nd8 Bg5 Ka7 b8B+ Kb7 Bc7 Rb8 Bcf4 Qd1 Bc1 Qd2 Nbd7 Ka7 b6+ Ka8 b7+ Ka7 N8e7 Rg8 h8B Qge3 Bg7 Qh7 Nb6 Q3h6 Rb4 Rc8 Rb3 Rc7 b8B+ Kb7 Nc4+ Ka8 Rbb2 Rb7 Bh8 Qhf7 Be5 Rg7 Ng8 Qc7 Bc3 Kb8 Bd4 Qb6 Bc3 Qa7 Nb6 Rge7 Bg7 Re5 Bh4 Rh5 Bg5 Rh1 Bd4 Rg1 Be5+
3Bn1B1/K2k4/3q3r/NB3N2/R1q1RbrR/1nRb1n1r/rb3R1p/5qB1 b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Qb3 gxh4 Qc3 b5 axb5 dxc3 Kf2 f5 e4 d5 b4 h5 g4 a5 b6 c2 b5 d4 c5 a4 c6 f3 b7 h3 c7 h4 b6 f4 g5 h2 e5 d3 e6 d2 g6 d1R g7 h3 e7 a3 Be3 c1B Ne2 a2 Bg2 Nc6 b8R Nd4 b7 Qd6 Ng3 Kd7 e8R Rh6 Na3 Bb2 Re4 Nf6 g8B Ne8 Nc4 Rg1 Na5 Ra7 Rf1 a1N Nf5 Nab3 Ra8 Be7 b8B Ba6 c8R Bd3 Rcc1 Bg5 Rc3 Ra6 Bc7 Ra7 Ke1 f2+ Kd1 f3 Bd8 Nc1 Kd2 Bf4 Re1 f1Q Re2 f2 Bf3 Qg2 Bh5 f1Q Rf2 Qg7 Bg4 Qf7 Be2 Bc4 Bd3 Nf3+ Kc2 Nb3 Be2 Bd5 Kd3 Rg4 Beb6 Qh5 Be3 Qh4 Bc5 Bc6+ Kc4 Bb5+ Kb4 Bd3 Ka4 Rc7 Ba7 Rc4+ Kb5 Rg2 Bab6 Rg4 Ka6 Ra4+ Ka7 Ra2 Rg1 h1R Rg3 h2 Rh3 Rhg1 Be3 R1g3 Beb6 Qhe7 Rh4 Rh3 Bc5 Bc2 Bec4 Bd3 Bb5+ Qc6 Rg2 Qf7 Bg1 Qc4 Rf2 Be3+ Kb8 Nbd4 Nb7 Nb3 Ra4 Bg5 Ka7 Bf4 Ba6 Qg6 Na5 Qd6 Bb5+
1N3rBK/k5n1/2R4n/1NNRb3/2bN2b1/q1qrNp1n/RqB4p/1b2R3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 h6 Qd3 Nc6 Qg3 Nb8 Qh4 Ba3 Bd2 Bf8 Bb4 Rh7 Be7 gxh4 g5 Rh8 g6 Qc7 Bf6 Qd8 Bg5 hxg5 Kd2 a5 Kd3 d5 b4 Kd7 c4 Kc7 e4 Kb6 e5 f5 c5+ Ka7 e6 g4 c6 f3 c7 f4 e7 f2 e8N f3 g7 h3 h6 a4 h7 a3 Ne2 g3 Nec3 a2 Nf6 h2 Nd1 g2 Nd7 g1N Nb2 Nh6 g8B Nh3 Nc5 Qd6 Na3 Na6 Nbc4 Bg4 c8R Bg7 Ne3 Be5 Rc6 Rd8 Re1 a1Q b6+ Kb8 b5 Nc7 b7 Ne8 Rg1 Ka7 b8N Qb2 Rg2 Ng7 Be2 Qf8 Bd1 f1B+ Rge2 Qe7 Bc2 Rf8 Be6 Rhg8 h8R Rd8 Rh7 Rgf8 Bg8 Qd6 Nbd7 Qf6 Ne6 Qe7 Ndc5 Qf6 Kd2 d3 Rg2 d4 b6+ Kb8 b7 Ka7 b8N Qc3+ Kc1 d2+ Kb1 d3 Nd4 d1B Nab5+ Ka8 Rh8 d2 Rf2 Bc4 Rfe2 Nf7 Rh5 Nh6 Rf2 Bde2 Rf5 Bed3 Rg2 Qa5 Kb2 d1Q Rh5 Qc7 Kc3 Qc1 Re6 Qcf7 Rc6 Q6g6 Na4 Qa3+ Bb3 Bf6 Nc5 Bb1 Ra2 Bce6 Re5 Bd5 Ne2 Qc2+ Kd4 Qb2+ Nbc3 Ne8 Bc2 Bde6+ Ke4 Rd3 Nb5 Qg7 Rh5 Qh8 Rf5 Bc4 Rd5 Ng1 Kf4 Bc3+ Kg5 Nh3+ Kg6 Qd4 Kh7 Ng7 Nc7+ Ka7 Kh8 Bd2 Nf5 Qdc3 Ned4 Bf4 Ne3 Be5 Ncb5+
RK3n2/2rkn1n1/N1b4N/b2pR2N/nB4r1/1B1q1RrR/2p2q2/1q4RN b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Qb3 gxh4 Qc3 b5 axb5 dxc3 Kf2 h5 Kf3 a5 Ke4 f5+ Kd5 d6 b4 h3 g4 f3 e4 f2 e5 a4 g5 a3 e6 h2 g6 f4 g7 a2 e7 h4 c5 h3 b6 c2 b5 f3 c6 Ra4 b7 Rg4 c7 Rh7 b6 Kd7 Bc4 f1Q e8R f2 Re5 Qd1+ Nd2 f1Q Bb3 Qf2 Rb1 a1N Ne2 Qdf1 Rg1 h1N Ng3 h2 Nh5 Ng3 Ba3 h1R Bb4 Rh3 Ne4 Nf5 Neg3 Qc1 Nh1 Rhg3 Rb2 Qb1 Ra2 Be7 Ra3 Bg5 Ra8 Bd2 Ra3 Na6 b8R Nc5 b7 Ne6 Rba8 Nf8 Bc4 Be1 Rf3 Nb3 Ra3 Nc5 Bb3 Ngh6 g8N Ng7 Ra8 Nhf5 Nh6 Na4 Bc5 Ba5 Bb4 Qe7 b8N+ Ke8 Kc6 d5 Rge1 Bd7+ Kb7 Qe6 Rd1 Ne7 Rg1 Bb5 Na6+ Kd7 c8R Qf5 Rc6 Qd3 Rc3 Bc6+ Kb8 Rg2 Nf7 Neg6 Be7 Ke8 Re2 Nf5 Bg5+ Qde3 Rh3 R2g3 Nh6 Rc7 Ree1 Ng7 Be7 Kd7 Bb4 Ne7 Re2 Qe4 Rf3 Qd3 Re5
1qbb3B/B1qR1nNK/p5p1/r2rq2R/1qB3bR/bB1q4/BR5N/6k1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 a5 f3 a6 bxa6 Qd2 a5 Qd1 a4 Na3 h5 Rb1 f5 Ra1 f4 Nb1 Nc6 Qd3 Nce7 Qf5 Ba6 Qg5 Nf5 gxf5 Bc8 Qg4 hxg4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 c4 g3 b4+ Kd6 h4 a6 f6 a3 Kf5 d3 Kg6 Ke5 e4 Kd4 b5 d5 h5 g2 f7 d2 e5 Ke3 e6 Kf2 h6 d1Q c5 d4 c6 a2 e7 d3 e8B d2 h7 Bh3 b6 Bc8 c7 Nh6 b7 Qa4 b8R d1B Nc3 Ba3 f8R Nf7 Nce2 Qb4 Ba4 Qde7 Rb1 a1Q Rb5 Qae5 Bb3 Rb8 Rd5 Rb5 Rh5 Ra5 Rd7 Qb8 Rb2 Qeb4 Nd4+ Be2 Re8 Rf8 Re6 Rd8 Bd2 Bd1 h8B Be2 Kh7 g6 Nf5 Bd1 Rde7 Rdd5 Bfc4 Be2 Rd7 Bd1 Ne2 g1B Ned4 Kg2 Rc2 f2 Nf3 f1Q Nh2 f3 Ng7 f2 Be3 Qd3 Ba7 Bg4 Rf6 Kh1 Rf4 f1Q Rcf2 Qc1 Re4 Bh3 Reh4 Bg4 Rb2 Be3 Rf2 Bg5 Ba2 Bd8 Bcb3 Bb7 c8B Qcc7 Bc4 Ba8 Bb7 Kg1 Bc6 Bb7 Ba4 Bc8 Bc2 Qdg3 Bc2b3 Qd3 Rb2+
2nn1nR1/1B2p1rp/3pBBR1/Brr2N2/4K1N1/1b4p1/3Bbq2/2Nk2Nr b - - 0 1 legal: proof: f4 a5 g4 c5 h4 g6 b4 axb4 d4 cxd4 h5 f6 g5 Bh6 e3 Bg7 Qg4 Bh6 f5 gxh5 g6 Bf4 exf4 h4 Qg5 fxg5 Ke2 b5 Kd3 h3 c4 g4 a4 h2 g7 Kf7 a5 Kf6 a6 d6 a7 b3 c5 g3 c6 b4 c7 b2 Nd2 b1N Nb3 Na3 Bh3 Nd7 Bd2 Qf8 Ke4 d3 Nc1 b3 Ba5 Ba6 c8N b2 Nb6 b1R Nc4 d2 Ne3 Rc8 a8B d1B Bb7 Nc4 Bg4 Nh6 g8N+ Kg7 f6+ Kg6 f7 Rc5 f5+ Kg5 f6 Ncb6 Ra3 Bb3 Be6 Be2 Nf5 Kg4 Ra1 Nc8 Ra4 Qe8 f8B Nf7 Bh6 Qf8 Bhd2 Nd8 Rb4 Qf7 Rb6 Nf8 Ngh6+ Kh5 Rc6 Rg8 Ng4 Rg5 Ra6 Rg7 Ra8 Rb2 Nh3 Rb1 Rf1 h1R Ng1 Qg6 f7 Qf6 Nfe3 Qb2 Rf6 Kh4 Rg6 Qf6 Rb8 Qf2 Nf3+ Kh3 Nf5 Kg2 Ng1 Kf1 Bg5 Rc3 Bf6 Ke1 Ra8 Kd1 Rb8 Nd7 f8B Rc5 Ra8 Ba4 Rb8 Rbb5 Ra8 Bb3 Rb8 Rf7 Bh6 Nf8 Bhd2 Rg7 Bf4 Nd7 Nfh6 Na7 Nh2 Nf7 Rg8 Nf8 Bfd2 Nd8 Nf5 Nc8 Ng4
1N3N1b/3q1NB1/3R3b/2qprpR1/nbq3B1/1B2p3/pNB5/2KR1k1n b - - 0 1 legal: proof: c4 g5 e4 c5 a4 b5 d4 cxd4 h4 bxa4 Qd3 gxh4 Qc3 dxc3 f3 d5 Be3 a5 Bc1 Ra6 Ra3 Bf5 Ra1 Rd6 e5 Be4 exd6 e5 Na3 Bc2 Nb1 e4 Rh2 e3 Rh1 Be4 fxe4 Bh6 Ra3 Bg7 Ra1 Bf8 Kd1 Kd7 b4 Ke6 g4 Ke5 g5 Kf4 b5 Kg3 c5 Kf2 g6 f5 b6 h5 c6 h3 g7 h4 d7 h2 c7 a3 c8B a2 b7 h3 e5 a4 e6 a3 e7 Nh6 e8B Ng4 g8R Na6 b8N Nc5 Bc4 Bh6 Nd2 Na4 Bb2 c2+ Kc1 Kg2 Bg7 Nf2 Rb1 a1B Bh5 a2 Ngf3 Bf6 Rd1 h1Q Rb5 h2 Rb6 Qf1 Ng5 h1Q Bb3 Qc4 Rd6 Qa5 d8N Qac5 Nge6 Qh2 Ng5 Nh1 Bg4 Qh5 Nde6 Qe8 Nf8 Qd7 Ba6 Bc3 Bb5 Bb4 Nf7 Rh7 Nf3 Kf2 Ne1 Kf1 Ba1 Rg7 Bc6 Rg6 Bg7 Re6 Bb5 Nc3 B5a4 Re5 Kb2 c1B+ Kc2 Bd2 Nd3+ Be1 Nb2 Qcc6 Ra1 Q6c5 Kc1 Bh4 Bc2 Bf6 Bab3 Na4 Rb1 Bhg5 Bh6 Bf4 Rg5 Bh8 Bg7 Ba5 Rh5 Bh6 Rg5 Bb4 Kd1 Kf2 Bd3 Bc3 Kc2 Kg2 Rd1 Kf2 Kc1 Bb4+ Bdc2 Kg2 Rd4 Kf1 Rd1+
1b6/NBRB2KN/1n2R1b1/1kn1Rqn1/5n2/1rn2q1n/1N1BN3/nq2R1n1 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Nb1 f5 Be3 b5 Bc1 f4 Qd3 Ra6 Qf5 Rf6 Qg5 Rf5 gxf5 Bd6 Qg2 Bf8 Qg4 hxg4 Kd2 d5 Kd3 Kd7 a4 Kc6 c4 g5 e4 b3 h4 g3 c5 g2 f6 b2 a5 f2 h5 g4 e5 b4 h6 f3 e6 b3 f7 g3 a6 Qf6 a7 Nd7 a8B+ Kb5 e7 Nb6 e8R Bf5+ Re4 Ne7 c6 Ng6 c7 Bd6 c8R Nf4+ Kd2+ d3 Be2 f1N+ Kd1 Qg6 f8N d4 h7 Bb8 Ra2 Nd2 Re3 Ne4 Bd5 Nc5 Nd2 b1N Re6 Na3 Re3 b2 Nc4 b1Q Kd2 f2 Bg4 f1Q Bb7 Nc2 Re4 Qf7 Rc7 Na1 Re8 Bg6 Bd7+ Kb4 Rc2 Qf5 Nb2 Ka5 Re6 Qf2+ Kd1 d2 Rc3 Qe3 Rb3 Qee4 Re3 Qc6 Re2 Kb5 R2e4 Nfd3 Ke2 d1N Be3 Nf4+ Kf3 d3 Bc1 Nf2 Ke3 d2 Kd4 d1N Bd2 Ncd3 Re3 Ne4 Ne2 Ng5 Re1 Qh3 R3e4 Nc5 Ke5 g1N Kf6 N1f3 Ng1 Qf5+ Kg7 g2 Bc1 Nf7 Ne2 g1N Re3 N7g5 Bd2 Nge4 Re8 Nef2 R8e6 Bf7 R3e5 Rg8+ Kh6 N2h3 h8N Rg3 Nh7 Bg6 Nf7 Nfg5 Kg7 Rb3 Nd8 Nc3 Bdc8 Qd5 Nc6 Qg2 Bd7 Qf3 Na7+
1qR5/BN2rBp1/3R1nK1/2r1bBn1/r6k/3RN1rB/NN3rp1/nn1n4 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h5 Qd2 b6 Qf4 Bb7 Nb1 Be4 Qg3 f4 Qh3 Bf5 gxf5 Qc8 Qh4 Qd8 Qg4 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 h4+ Kh5 c4 d3 a4 d2 a5 d1N f6 d5+ Kf5 d4 e4 b3 a6 b2 c5 f2 f7 g3 a7 f3 c6 d3 e5 b5 c7 d2 c8B b4 e6 b3 e7 Na6 e8B Bc5 Ne2 Rh7 Nbc3 b1R Nd5 b2 Nec3 Bd4 Ne3 Nf6 Bh3 f1N Ra3 g2 Na2 f2 Rd3 Nc7 Be6 Rc8 a8N Ra1 Nb6 b1N Na4 Be5 Nb2 Rh6 f8N+ Rg6 B6d7 Ne6 Bf7 Ng5 Ne6 Rc5 Rh2 Qg8 Nd8 Qf8 Nb7 Qb8 Nc3 Ra4 Na2 Ndc3 Rh1 d1R Rd6 Rdd5 Bde6 Nfd2 Rd1 Nb3 Rd3 Na1 Bc8 Kh6 h5 Nd1 Bd2 Rdd4 Ba5 Re4 Bb6 Nf3 Ba7 f1R Ke6 Kg5 h6 Kh4 Kf5 Rgg4 h7 Ng5+ Kg6 Rg3 Bcf5 Rf2 h8R+ Nfh7 Rhd8 Nf6 Na5 Reb4 Rf8 Rb7 Rc8 Re7 Nb7
1b1B2R1/NnBqN1pK/1R4n1/b1N1pB2/1pn3n1/1np1Rr1N/1B6/2r4k b - - 0 1 legal: proof: c4 d5 b4 dxc4 e4 f5 b5 fxe4 b6 axb6 Ke2 b5 Ke1 b4 g4 h5 f4 Nh6 f5 Be6 f6 Bf5 gxf5 Ng8 Qg4 hxg4 Kf2 Kf7 Ke3 b5 Kf4 c5 Kg5 e5 d4 e3 h4 e2 a4 e1B h5 b3 a5 b2 h6 g3 d5 c3 a6 c2 d6 c4 h7 g2 d7 Nc6 a7 Bd6 Be2 Rc8 a8R Na5 Nc3 b1N Ra3 Nb7 Bg4 Nd2 Nh3 g1N Bb2 c1N Rb8 Qe8 d8B Nge2 Ra6 Rc7 Rb6 Nh6 Kh5 Rf8 h8N+ Kg8+ f7+ Kh7 f6 Qd7 Ng6 Ncb3 Kg5 Nf4 Bf5 Ng4 Ne7+ Ng6 Rg1 Rc6 Rg3 Bc7 Ra8 Bb8 Re3 Rc5 Nc8 Rc7 Ne4 Rc6 Na7 Rc7 Be6 Rc6 Kf5 Kh6 Nc5 Kh5 Bc7 Kh4 Bd8 Rg8 f8B Rc7 Bfe7 Rf8 Bd6 Rc8 B6c7 Rf7 Re4 Kg3 Re3+ Kg2 Kg5 Kh1 Bf5 Nb1 Kh5 Na3 Kg5 Rf8 f7 Ba5 Kh5 b4 Kg5 Re8 f8N Re6 Kh5 Rd6 Kg5 c3 Kh5 Rd1 Kg5 Rc1 Kh5 Nh4 Ng6 Nc4 Ne7 Ng6 Bd6 Rc6 B6c7 Rd6 Kg5 Rd4 Kh5 Rf4 Kg5 Rf3 Kh5 Nf4+ Kg5 Nd5 Kg6 Nf4+ Kh7 Ng6 Nd5 Re1 Be7 Rd1 Bcd6 Bc7 Rg8 Rdf1 Bd8 Rc1 Ne7 Bb8 B6c7
2R1b3/5p1K/p2Nb3/1rBbr3/1p2R1p1/4b1k1/qBBnnrN1/1NRNR3 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 b5 h5 a4 a6 gxh5 Qe7 a5 Qd8 Qd3 axb5 a6 b4 a7 Qf6 Qc4 Qd8 Qa6 bxa6 Kd2 Ke7 h4 Kd6 c4 Ke5 e4 g5 c5 d5 c6 d3 c7 f3 Ke3 d2 h6 d1R h5 f2 h7 g4 h6 Bd7 c8R Be8 Ne2 Nc6 Nec3 Rb8 a8R Rb5 Bb2 Nd4 Bd3 f1B Bc2 Bc4 Re1 Rd2 Nd1 Bc5 Ra7 Qa5 Re7+ Kd6 Kf4 Nf6 Kg5 Ne2 Re5 d4 Re7 d3 e5+ Kd5 e6 Ke4 Bd4 Rf8 h8B Kf3 h7 Ne4+ Kh6 Bd5 Bhg7 Rg8 h8N Qa2 Kh7 Kg3 Ng6 Ba7 Bb2 Be3 Bgd4 Rf8 Bc5 Rg8 Nh4 Rg5 Rd7 Re5 e7 Be6 Rd4 Bd5 Ba4 Rc2 Ng2 d2 Na3 Be6 Rc1 Bd5 Nb1 Be6 Nf2 d1B Rc4 Nd2 Re4 Nc3 Bb3 Bf3 Nd1 Ne2 Ba4 Bc6 e8N Bcd7 Rc4 Bfd5 Nd6 Be8 Rf4 Rc4 Bc2 Rce4 Rf6 Rf4 Rf5 Rf3 Rf4 Rf2 Re4
2q1b3/N1n2N2/qrN2p2/B1n5/3bNn2/1k1Nn2n/r2Qpr2/B1QB1Q1K b - - 0 1 illegal: No possible last move
BKBrN2N/n3BQn1/1p2r3/1n5q/rB2p2b/Qb1B1r2/8/rN3qkQ b - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 g5 e4 a5 a4 axb4 h4 Ra6 g4 Ra8 f4 fxe4 f5 Bh6 Ra3 Bf8 Rf3 h6 Rf4 gxf4 g5 h5 Rh3 Nf6 Rg3 Ng8 Rg4 hxg4 Ke2 Kd7 d4 Kd6 g6 e5 g7 c5 a5 e3 Kd3 f3 Kc4 f2 Kb5 b3 f6 g3 h5 g2 f7 b6 a6 c4 a7 b2 h6 e2 h7 e1R Bg5 c3 Bd2 c2 Qg4 c1R Nh3 g1R Bd3 f1Q Nf2 Qg5 Qh3 Nh6 g8B Nf5 Ng4 Ng7 Nf6 Be7 f8Q Rc3 Be6 Nc6 Qf7 Rd8 h8N Qh5 Bg4 Be6 Ka6 e4 Kb7 Re3 Be1 Rf3 Bf5 Rc4 Bc3 Rac8 a8B Ra4 Bd2 Na7 Ne8+ Kd7 d6 Rc6 d5 Rh1 Na3 b1N Bb4 Nc3 Nb1 Ncb5 Qf8 Nc8 Kb8 Bh4 Qf6 Rh2 Qc3 Rha2 Qa3 Ra1 Nc7 Rf8 Ne8 Nca7 Bg4 Kd8 d7 Rd6 Bf5 Ke7 d8B+ Kd7 Qg2 Rc6 d6 Rg8 Bg6 Bb3 Be7 Ke6 d7 Ke5 d8Q Kf4 Qd5 Ke3 Qf7 Re6 Qh3 Kf2 Bf5 Kg1 Bg4 Rg6 Bc8 Re6 Nc7 Rd8 Ne8 Rf4 Ba5 Rf2 Bab4 Rf3 Qh1+
2kq1n2/Q6Q/2r4n/R1R2n1Q/q2p1KpB/Bbr5/b1B3Q1/nR1Q2bq b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Kd2 a5 e4 d5 h4 Kd7 b4 f5 c4 d3 h5 a4 e5 f2 g6 a3 h6 a2 e6+ Kc7 e7 f3 Ke3 d4+ Kf4 d2 e8Q Nd7 g7 Ra3 h7 Nh6 g8Q Rc3 Bd3 f1B c5 f2 Bc2 Bc4 c6 f1N Qd5 Ne3 Qg2 Bb3 Ba3 Bd6+ Qe5 Rf8 h8Q Rf6 b6+ Kb8 b5 Nf8 b7 Bce6 Rb1 a1N Rh5 Ba2 Qh7 Beb3 Qdg1 d1Q c7+ Ka7 c8R Bb8 Q2f1 Rfc6 Qfg2 Bc7 b8B+ Kb7 Be7 Bd6 b6 Bc7 Ba7 Bd6 Ra8 Bc7 Bb8 Kc8 Ra5 Bd6 Q1f1 Bc7 Qfe2 Qh1 Qd1 Bd6 Kg5 f4 Ba7 f3 Kf4 f2 Bh4 Nef5 Bb8 Be7 Bd6 Bf6 Ba3 f1Q+ Qdf3 Qb5 Qd1 Qa4 Qb5 Be7 b7+ Kc7 b8Q+ Kd7 Qa7+ Kc8 Qbc5 Bg5+ Ke4 Be3 Qe5 Bg1 Kf4 Bc4 Rg5 Bf7 Qe8 Bfb3 Qh5 Nd6 Rgb5 Ndf5 Rc5
qb2kRR1/2Rbbr2/R5b1/1pRbR2p/4b1bN/2R2Q2/1b1N2N1/6K1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a5 Qd3 axb4 Qd1 d3 f4 e5 Qh5 d5 Qg4 d4 Nh3 Nd7 Qd1 Nb6 Ng1 Nd5 exd5 e4 g4 h5 Be3 h4 Bf2 Ne7 Bg3 Ng6 Bg2 Bd6 Bf1 Ne5 fxe5 Bf8 g5 hxg3 h4 g6 h5 Qa5 h6 Qc7 Be2 Qd8 Bh5 gxh5 Kf1 b5 a4 f5 c4 f4 g6 d2 a5 b3 a6 d3 h7 e3 a7 f3 c5 f2 d6 b2 g7 Qd7 e6 Qc6 e7 Bd7 Qf3 d1B Nd2 b1B Rh3 Bb3 Ne2 Bd5 Nf4 e2+ Kg2 e1B Ra6 f1B+ Kg1 Qb7 c6 g2 c7 Bg3 Rc6 Rd8 c8R Qa8 R8c7 Rb8 Rc4 Rb7 R4c5 Rg8 h8N Be4 Nb3 d2 Nhg6 d1B Nd2 Bc4 Nh4 Bf7 Qf2 B1g4 Qf3 Qb8 a8R Bfd5 Ra6 Qa8 Nfg6 Be5 Nf4 Bb2 Rg3 Bg6 Rh3 Bbe4 Rg3 Kf7 e8R Be7 Rh3 Rf8 Rg3 B7e6 d7 Ra7 d8R Bd7 Qd1 Rb7 Rgc3 Ra7 Qf3 Rb7 Kf2 g1B+ Kf1 Be3 Nfg2+ Bf4 Kf2 Rb6 Kg1 Rf6 Rca7 Bb8 Rb7 Bed6 Re5 Be7 Rdc8 Rf4 R8c7 Ke8 Rbb6 B6f5 Rh6 Bg6 Rh8 Rf6 Rg8 Rf7 gxf8R+
N4Q2/b4b2/1r4N1/1n5N/1R2qb2/NnkNq1N1/KNRrb2b/3rbq1R b - - 0 1 illegal: No possible last move, all moves rejected
5r2/N1QK1nk1/Nr4B1/1n4N1/1bn2n2/2rb1rnp/BBn2qNN/N5N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 h6 b4 Ne7 Rh4 Ng8 Ra3 Be7 Rg3 gxh4 g5 Bd6 g6 Bf8 Rg5 hxg5 Kf2 f5 Kf3 a5 e4 d5 c4 h3 g7 Kf7 e5 g4+ Kf2 d3 b6 f3 Kg3 d2 Kf4 f2 b7 d4 h6 a4 c5 g3 h7 g2 c6 a3 c7 d3 b5 a2 b6 a1N Qc2 d1N Nd2 Ra3 Bb2 Nh6 g8N Na6 b8N Rc3 b7 Ne3 e6+ Kg7 Ke5 f4 e7 f3 e8B Bb4 Nc6 Qh4 b8N Bf5 c8N Nc7 Nb3 d2 Bg6 d1R N8a7 Nb5 Nce7 Rd6 Nd5 Bd3 Na6 Rb6 Ngf6 Rf8 Nf4 Nc4+ Kd5 Qg3 h8N Nf7 Ng4 Qh2 Qc1 Nc2 Na1 Qg3 Be2 f1N Nh2 f2 Bg4 Qh4 Bd7 Ng3 Be6 Rb7 Kc6 f1R Bd5 Rb6+ Kd7 Rf3 Be6 Nd2 Ba2 Nc4 Nge2 g1N Ng2 Nf1 Qf4 Qf2 Qc7 Ng3 Nef4 Nfd6 Nf7 N1e2 Ng5 Nf7 Be4 Nh5 Bg6 Neg3 Ne2 Nf4 Ng1
2N3R1/p1b3R1/4q2k/2Qr1q2/K1QQ1r2/Rp1B2QR/1rp2n1b/1Q1b3n b - - 0 1 illegal: No possible last move
rq4Qq/R2b1Q1R/n6R/1r4rn/3k2rQ/5r1q/Q2BnRq1/K1N2Rb1 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Bh3 g5 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Nc6 Be6 Nb8 Bg4 hxg4 Kd2 Ke7 c4 Kd6 Kc2 Ke5 Kb1 d5 b4 a5 e4 f5 h4 g3 c5 f2 c6 f1Q b6 f3 c7 f4 h5 g2 b7 a4 b5 f2 b6 d3 g6 d4 h6 f3 h7 a3 g7 d2 Rh4 a2+ Kb2 d3 Qe2 d1N+ Kb3 d2 Rh6 Na6 b8R Nc3 Kb2 d1R b7 Rd4 Bd2 Bd7 c8Q Nf6 g8Q Nh5 Qcc4 Bc5 Rc8 Qc7 Rf8 Qb8 Qe1 Rd5 Ne2 g1R Nc1 Qg2 Rff6 f1R Qh4 f2 Rf4 Qf8 b8R Ne2 Rb7 Qb8 Qa4 Bb6 Ra7 Rb5+ Qab3 Kd4 e5+ Qe4 e6 Rg4 Qf7 Rhg8 h8R R8g5 e7 Bc5 Rf5 Qg2 e8Q Bb6 Qeg8 Bc5 Rb1 a1Q+ Kc2 Bb6 Qa2 Bc5 R8h7 Bb6 Rb3 Qc3+ Kb1 Qcc8 Qgg6 Qh8 Ka1 Qh3 Ra3 Bc7 Rff3 Bh2 Qgg8 Bg1 Ba5 Rd1 Be1 f1Q Bd2 Qfg2 Rf5 Rf1 Re3 Nc3 Re1 Rff4 Rf1 Ne2 Re5 Rf2 Re3 Rf6 Ref3 Rff4 R3f2 Rf6 Bb4 Rf3 Bd2
K2Br2Q/b4q2/k2BQ1b1/7n/1NQ1Bq1b/1B3Qrq/n3Qb1q/R1r1r3 b - - 0 1 illegal: No possible last move
b3kR2/Q6R/3QnQp1/n1r2b1N/K1R4b/R1pn1r2/pB1pqQ2/2Rr4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 d5 c6 c4 Na6 c5 Bd6 Bg2 Bf8 d6 Nb8 Bd5 cxd5 c6 Rh5 c7 Rh6 Nd2 Rg6 Ndf3 Rh6 Nd4 Rh8 Nc6 dxc6 Kd2 f5 Kc2 a5 Kb3 a4+ Kb4 f3 h4 c5+ Ka3 c4 b4 c3 e4 f4 e5 g3 h5 d4 e6 g2 h6 d3 b6 g6 e7 f2 h7 f1R b7 d2 b5 f3 b6 f2 Qc2 Rd1 Qf5 f1B Ne2 g1N Qf2 Nf3 Bb2 Nc6 b8Q Nf6 b7 Nd7 Nf4 Nc5 Nh5 Ne1 Qa7 Ned3 b8Q Bf5 c8R Na5 Rg1 Ne6 Rc4 Rg8 h8R Bg2 Rh7 Rh8 Qb4 Rc8 Rf1 Bf3 Rc1 Ba8 Qbc5 Bh6 Qe5 Rf8 Qf6 Ne5 Kb4 a3 Ka4 a2 Qad4 Kd7 e8R+ Qe7 Qa7+ Rc7 Rb8 Nd3 Rb3 Bg5 Ra3 Kd8 d7 Bh4 Qae3 Rc5 Qed4 Kc7 d8Q+ Kc6 Qde3 Rf7 Qb6+ Kd7 Qeg3 Ke8 Qgd6 Nf8 Qa7 Qe2 Rg1 Ne6 Rgg4 Rd5 Rc7 Rc5 Rc4 Rf8 Rcf7 Rh1 Qf6d4 Rd1 Rd7 Bh3 Q4e5 Rf5 Rdf7 Rf3 Qf6 Bf5 Rf8+
1nqQ2q1/2N1Q3/1Q1r2Q1/2n1n1RQ/RK4Qr/n1r1n2r/N2nb1R1/6k1 b - - 0 1 illegal: No possible last move, all moves rejected
1B2Q1BK/1nNB1r1B/b1n4k/4rpqB/4p2n/3BN2p/1n1N1bQ1/2q1n3 b - - 0 1 legal: proof: e4 g5 f4 c5 d4 cxd4 g4 a5 b4 axb4 a4 e6 h4 Be7 hxg5 Nh6 e5 Bc5 f5 Ng8 Rh3 Bf8 Rf3 Ra6 f6 Ra8 Rf5 exf5 e6 Ra5 e7 Ra8 Ra3 Ra7 Re3 Ra8 Re6 fxe6 Kd2 Kf7 Ke2 Bg7 Ke1 Bf8 Kd2 Kg6 Kd3 h5 e8N b5 c4 d5 c5 b3 c6 h4 f7 e5 a5 b2 a6 e4+ Kc2 d3+ Kc3 d2 Kd4 h3 Ke5 b4 a7 d4 c7 b3 Na3 b1Q Nc4 b2 Qf3 d1N Bf4 d3 Qg2 d2 Nf3 Rh7 Bd3 Nh6 Ne3 Bc5 f8Q Ba6 c8B Qc1 Bd7 b1N Nc7 Nf2 Qe8+ Rf7 Ke6 d1N Nd2 Kg7 g6 Nb2 g5 Nc6 Bg3 Rb8 a8B Rb5 Bb7 Ba7 Be2 Rc5 Bh5 Nfd3 Bbc8 Ne1 Bh2 Bf1 Ba6 Bb6 Bd3 Be2 Ndc4 Nd2 Bg3 Ndf3 Nd2 Nh4 Bd6 Rf8 Bg3 Nf7 Be5+ Kg8 g7 Kh7 g6+ Kh6 g8B Qg5 g7 Nd6 Bh7 Rf7 g8B Ba7 Ncd5 Nb7 Bb8 Bb6 Nc7 Ra5 Bb1 Ba6 Bd3 Rg7 Nc2 Bf2 Ne3 Rg6+ Kf7 Re5 Kf8 Rf6+ Bgf7 Qf4 Kg8 Qg4+ Kh8 Qg5 Bfg8 Rf8 Bf3 Rf7 Bh5
2N1Q2R/b1Qn2N1/1R1np1b1/rQ1Q1R2/n2p3Q/QKp5/n2q1k2/3rn1n1 b - - 0 1 illegal: No possible last move
rk1R3b/bb2pq1b/1Qr3p1/1K2B3/4qB1B/1BRn1B2/3p2QQ/2q3Q1 b - - 0 1 legal: proof: f4 a5 b4 b5 e4 h5 d4 f5 g4 hxg4 a4 c5 e5 cxd4 Nc3 Na6 Ne4 fxe4 f5 Nc7 Ne2 Nd5 Nc3 Ndf6 exf6 Nh6 Na2 Kf7 axb5 Ng8 b6 Ke8 b5 Rb8 Nb4 axb4 Ra5 Ra8 Ra7 Rh3 Ra1 Rh8 Kd2 d5 c4 Kd7 h4 e3+ Kd3 g3 b7 Kc7 b8Q+ Kd7 h5 g6 b6 g2 f7 g1Q c5 e2 b7 e1B h6 b3 f6 b2 h7 Bh6 f8B Bed2 f7 Nf6 Bg2 Ne4 Ra3 Bhe3 Rc3 Qe8 Bg7 b1Q+ Qc2 Kc6 f8Q Qf7 Bf3 Rg8 Qa7 Kc7 Qb6+ Kb8 h8B Qb4 c6 Nf2+ Ke2 Nd3 Bf6 Qb1 Bh4 Qg4 B8f6 Qe4 Rd1 Be1 Bd2 Qc1 Qg7 Rd8 Be5+ Rd6 Qh6 Bg3 Qg5 Bgf4 Qg2 Bg5 Qbb1 Bf6 Qh2 Bh8 c7+ Ka7 Qg1 Be6 c8B Rc6 Bef6 Kb8 Qb6 Qh7 Qcb2 Bg8 Be6 Qf7 Be5+ Rc7 Rc6 Bh7 Rd6 Rc6 Qa2 Qc3 Rc1 Qa1 Rc3 Qc1 Bg5 Ne1 Bh4 d3+ Kf1 d4 Bb3 Bf2 Bdf4 d2 Qb2 d1B Qa2 Bg3 Qag2 Bh2 Kf2 d3 Kf1 d2 Kf2 Qeb1 Ke3 Nd3 Kd4 Be2 Be4 Bg4 Bed5 Bc8 Bf3 Qf5 Kd5 Bg3 Kd4 Bf2+ Kd5 Bc5 Kc4 Qf7+ Kb5 Bf2 Qa6 Ba7 Qab6 Qbc2 Bh2 Nb4 Qe2 Rc7 Bc6 Qcf5 Be4 Nd3 Bf4 Rc4 Qbf2 Kc7 Qfh2 Rc6 Bf3 Qe4 Qef1 Bg8 Qfg2 Bh7 Rf6+ Kd8 b8Q Kd7 Qbb6 Bb7 Re6 Kc8 Rd6 Kb8 Rd8#
2rk1b2/KN1b2B1/2B3N1/BQ1b3n/2b1BQ1r/Nb5B/3N1rr1/rn4nq b - - 0 1 illegal: No possible last move
q4Rn1/1n3r2/2b1k1bQ/3q1R2/R1R2Knr/1Qb4Q/Nb1rb1rQ/6NQ b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 e4 Ke7 b4 f1B c4 f5 h4 d5 e5 a5 g6 a4 e6 a3 b6 g3 h5 g2 c5 d3 c6 f3 Ke3 f4+ Kd2 a2 b5 f2 g7 d4 h6 f3 b7 Ra7 b6 Na6 b8R Nc5 c7 Bb7 c8Q Bc6 b7 Be2 h7 f1N+ Ke1 d2+ Kf2 d3 Qb3 d1Q Qb5 d2 Qa6 Nh2 Ke3 f2 Kf4 f1B Nc3 Ng4 Rh5 Kd6 Rc1 a1B e7 Bb2 e8R Qa4+ Re4 d1R Na2 Rd2 Rc3 Qb3 Rhe5 Qd5 Rcc4 Be7 Red4 Bf6 Rf5 Qf8 Re4 Bfc3 Ra8 Qd8 b8Q+ Rc7 Ra4 Nb7 Rec4 Bd3 Qb6 Bfe2 Qe3 Be4 Qh3 Ke7 Qh1 Rd7 Qbc7 Ke6 Qb6 Qf8 Qcc7 Qa3 Raf8 Re7 Qe3 Rf7 Qeh3 Bb1 Rab4 Qa8 Ra4 N8f6 g8Q Be4 Qg5 Ng8 Qb6 Bb1 Qb3 Be4 Nf3 g1R Q1h2 Rg2 Ng1 Bc2 Qgh6+ Kd7 Rf6 Bg6 Rf5 Ke6 Q6h5 N8h6 Qh1 Bf1 Q3h2 Be2 Qg5 Rg8 h8Q Rgg7 Ra6 Rh7 Raa4 Ng8 Qgh5 Rh6 Q5h3 Rh4 Qh6
bnQ1q2N/3R1b2/1rN1nRN1/2r1b2q/3pQ3/b2K4/Qr1Q3R/2k1b2N b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 f5 exf5 c5 a4 cxd4 Bd2 b5 axb5 a4 b6 a3 Ba6 Rxa6 b5 a2 Bf4 Ra8 Bg3 Na6 Bb8 Nxb8 Kd2 Kf7 f4 Kf6 c4 e5 g4 h5 b7 d5 c5 d3 b6 e4 c6 e3+ Kc3 d2 c7 e2 Rh2 e1B Ne2 h3 Kd3 h4 Nbc3 Ba3 Nb5 Ra6 Ng3 Rh5 Nh1 Be6 c8Q Ne7 Nd6 Nec6 Nf7 Nd4 Nh8 Qe8 Qdc2 d1Q+ Qd2 Bf7 g5+ Kg7 g6 Kf6 g7 Ne6 Rc1 a1B g8Q Be5 Rc7 d4 Rd7 Rg5 Qc6 Qh5 Qf3 Rg2 Qe4 Rf2 Qgg2 Ra5 Qa2 Rb2 Qge2 Rc5 Qd2 Kg7 f6+ Kh6 Re2 h2 f5+ Bf4 Rf2 Kg5 Re2 h3 Rf2 Na6 b8Q Kg4 Qc8 Nb8 b7 Rb6 Ng3 h1R Rh2 Rf1 Nh1 Rf2 Qa5 Rfb2 Qd2 Na6 b8N Kg5 Nc6 Nb8 Rf2 h2 Re2 Bg8 f7 Kg4 f8N Bf7 Qee3 Be5 f6 Kf5 Nfg6 Kg4 Ng3 h1B Rh2 Bg2 Nb4 Ba8 Nh1 Bg8 f7 Kf5 f8R+ Bf7 Qc1 Kg4 Qed2 Kf3 Qcc2 Rbc6 Nf4 Bg8 Rf6 Rb6 Nc6 Bf7 Qcb1 Ra5 Kc4 Rd5 Qb4 Ke3 Nfg6 Rdb5 Rh3+ Ke2 Qe4+ Kd1 Rh2 Rc5+ Kd3 Kc1 Qd2+
1r2n1qB/R3B3/p1p2bRr/1Q2R1QQ/1b3k2/1qrR2b1/4Q1q1/Kn3B2 b - - 0 1 illegal: No possible last move
n3N1Rr/6RQ/1N1kp1KQ/bbrNq1R1/r2b3b/3n4/2R3p1/1Q2Qq2 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 d5 cxd5 f5 e4 fxe4 Bh3 b5 axb5 a4 b6 a3 b5 Rxh3 Bb2 a2 Bf6 Rh8 Qb3 Nxf6 Qd1 Ng8 Ke2 Kd7 Ke3 c5 Kf4 g5+ Kf5 c4 h4 e6+ Kg6 e3 d4 g3 f4 e2 h5 e1Q b7 g4 f5 g2 b6 c3 d6 g3 f6 c2 h6 c1R f7 Rc2 d5 Qe7 h7 Na6 b8Q Qe3 b7 Qh4 Ne2 g1B Nf4 g2 Qe1 Rd2 Na3 Qhf2 Nc4 Qh4 Rc1 a1B Rc2 Bfg7 f8Q Qhf2 Rh5 Qf1 Rg5 Bgd4 Qh6 Nc7 Qa7 Bf2 b8Q Qg3 Qbb1 Ba6 Qab7 Nf6 Nb6+ Kd8 d7 Ke7 d8N Nh5 Qa7 Bac3 Nb7 Bb5 Nd6 Ba5 Ne8 Re2 Qb7 Re5 Qa7 Qe3 Qb7 Bh4 d6+ Kd8 d7 Ke7 d8R Rc5 Rd6 Qe5 Qbe4 Ra7 Rc6 Na8 Rc7+ Kd8 Nfd5 Nf4+ Kf7 Nd3+ Kg6 Bd2 Rg7 Ra4 Qf5 Ba5 Nd7 Rf8 h8R Kc8 Rhg8 Kb7 N7b6+ Kc6 Nef6 Re8 Kh5 Rf8 Qfh7 Kd6 Kg6 Rf7 Rb8 Rf8 Rc8 Rh8 Rb8 Bg1 Rbg8 Bd4 Ne8+
1q1Q4/1N3QQN/1nkNr1n1/1b4nQ/6p1/pR1Rrn2/KR1N4/2qn3r b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 b5 a3 e5 Nc3 Bc5 Nb1 Bb6 a4 exf4 axb5 a5 Ba3 a4 Bb2 Ba7 Bc1 Bb6 g4 h5 Nc3 Ba5 bxa5 g6 Bh3 g5 Nb1 f3 Bf4 gxf4 g5 f2+ Kd2 Ne7 Bf5 Ng8 Bg4 hxg4 Kc1 f1N Kb2 f5 c4 d5 h4 Kd7 e4 f3 h5 a3+ Ka2 f4 h6 f2 a6 f3 a7 d3 g6 d4 h7 d2 b6 d3 c5 Qf6 c6+ Kd6 c7 Qc3 b7 Ne7 g7 Bd7 c8N+ Kc7 g8Q Qc1 e5 Bb5 e6 Nd7 b8R Kc6 Qf7 Re8 h8Q Nb6 Nd6 Ng6 e7 Ng3 Rh3 f1R Qh5 f2 Nb7 Ne4 Nf3 Rh1 Ng5 f1N Nh7 Ng5 Qe1 d1N Qe5 d2 Rd3 Nh2 Qeg7 Nhf3 Rb3 Rd8 e8N Rd3 Ned6 Re3 Rd8 Rb8 a8Q Re6 Rd7 Rbe8 Qd8 Re3 Rb2 R8e6 Rb3 Nf2 Rb2 d1Q Nd2 Qg1 Rab1 Nd1 Rb3 Qg3 R1b2 Qe5 Ne8 Qf4 Rdd3 Qb8 Ned6
2nq3R/Br4qR/4q1n1/Q1p1pQ2/bp1BR1B1/5qRQ/6Bn/4rk1K b - - 0 1 illegal: No possible last move
2RN1n2/6q1/2qb1rr1/RQ3bqN/bRn1R3/k1K2n1q/5QQ1/Nr2Qq2 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 e4 Ke7 c4 Kd6 h4 Kc5 h5 Kb4 c5 f1R b6 f5 e5 a5 g6 d5 b7 a4 e6 a3 g7 d3 h6 d4 b3 f3 h7 f4 c6 a2 e7 g3 e8N f2 c7 g2 Nf6 f3 Ng4 Nd7 b8Q+ Nb6 Nc3 Ra6 Nd5+ Ka3 b4 Qg5+ Nde3 Bd6 b5 Ne7 g8Q Bf5 c8Q Ng6 Rh4 Nf8 Nh3 g1N Nh6 Re1 Qcc2 f1Q Qe2 f2 Re4 Rb1 Nf4 Qh3 Nf7 f1Q Nh5 Qff3 Qg7 Rg8 h8R Qfh1 Qf6 Rg6 Nd8 Q1g2 Qd1 Qgf3 Qg2 Nc4+ Ke1 Rb6 Qf7 Rc6 b6 Rf6 b7 Ra6 Rh4 Qc6 Re4 Rab6 Qa7+ Ra6 b8R Rg6 Rb4 d2+ Kf2 d3 Qfb7 Nf3 Qb5 Rf6 Qe1 d1B Kf1 d2 Qf7 Bc2 Ke2 Bd1+ Kd3 Ba4 Kc3 d1Q Qa7 Qe2 Qd4 Qf1 Qdd2 Qhg4 Qdf2 Q4h4 Rh7 Qh3 Rc7 Ra7 Rc8 Rg7 Ra8 Rgg6 Ra5 Rb2 Rc1 a1Q Rc2 Qd1 Rc1 Rb1 Rc2 Qdd5 Rc1 Qg8 Nc2+ Ka2 Na1+ Ka3 Rd1 Qg7 Rd5 Qcc7 Rc5 Qb7 Rc7 Qc6 Rc8
6b1/1q2QrQR/1nqr2nb/qR5N/1r3NKb/1QRr1RN1/3k2N1/4q2b b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 e4 Ke7 Ke2 Kd6 b4 Ke5 h4 f1Q+ Kd2 d5 c4 f5 b6 a5 h5 f3 g6 Kf4 g7 g3 b5 f2 e5 g2 c5 a4 c6 d3 b7 d4 h6 a3 b6 a2 c7 Be6 c8N Qe8 h7 Ra7 Rh5 Qe1+ Kc1 Ke3 Nh3 g1B Nf4 f1B Rh1 Nd7 b8R Bf2 b7 Bg2 Nb6 Ne7 g8N Bh6 Nd2 Bh4 Rc8 Ng6 Nf6 Bg8 Nde4 d2+ Kc2 Qe6 b8R d3+ Kc3 Qd5 e6 Qb7 Qb3 d1R+ Kc4 Ra6 Ng3 Kd2 Nbd5 Rd6 Kd4 Nb6 e7 Qe6 Rac1 a1Q+ R1c3 Qa5 e8Q Rb1 Rf1 Bh1 Ng2 f4 Qe7 f3 Nfh5 f2 R8c7 Qec8 Rd7 Qcc6 Ke4 Rd1 Kf5 Rb1 Re1 f1R+ Kg4 Rf7 Re3 Rb2 Rf3 Rb1 Qb5 Rb4+ Qc4 Kd1 Ndf4 d2 Ne3+ Ke1 Qb3 d1Q Ng2+ Kd2 Rc7 Qe1 Rd7 Qba7 Rbb7 Rd3 Rd5 Qa8 Rbd7 Qab7 Rb5 Rf6 Rc7 Rfd6 Rd7 Bf7 Rc7 Rf8 h8Q Bg8 Qhg7 Rf7 Rc8 Bh7 Rh8 Bg8 Rh7
3q3k/r6B/R1rQnB1n/3r1bQR/4bq2/RK1Q3R/B1pQ3b/b3q2r b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 Nf3 h6 Nc3 h5 Ne4 Qh4+ Nf2 gxf3 g4 Qf6 g5 Qd8 Ng4 hxg4 h4 c5 e4 f5 d4 Kf7 Kd2 Kg7 Kc3 a5 b4 a4 g6 a3 b6 g3 e5 g2 b5 g1Q h5 f2 d5 a2 e6 f3 b7 f4 e7 Nd7 e8Q Ra7 b8R Bd6 b6 Nh6 b7 Nf8 Qb5 Bf5 Ra8 Ne6 Bd3 f1Q b8Q f2 Ba3 f3 Qd2 Bh2 d6 Rg8 d7 Kh8 Kb2 c3+ Kb3 c2 Qd6 c1R Be4 Qg3 Qbd3 Qf4 Bb4 Qe1 g7+ Kh7 Bd5 f1B Ba3 Re8 g8B+ Kh8 Bh7 f2 Bc4 Re7 Bb4 Ra5 Ra6 Bg2 Bd5 f1R Ba3 Qe8 d8Q Ra7 Qg5 Qd8 Bc4 Bge4 Bb4 Bg1 Rh3 Bh2 Ba3 Rh1 Bb4 Nf7 h6 Rb5 Bd5 c4+ Ka4 c3 Qc7 Qd7 Bg8 Bg6 h7 Kg7 h8R Qd8 R8h5 Rc2 Qc6 Nh6 Be7 Kh8 Bh7 Bgf5 Qd6 Rc5 Rc1 a1B Ba2 Rd5 Rb1 Rc1 Rb3 c2 Ra3 Rb1 Qc7 Rbb5 Qd6 Rbc5 Kb3 Rc6 Bf6+
2Br4/2kBR1RB/2np1rQ1/2n1Qb1n/6R1/Brnpbq2/5QQq/3nK3 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 b4 f5 c4 a5 h4 d3 e4 d6 c5 Kd7 e5 g3 b6 g2 b5 g1N b7 a4 e6+ Kc7 e7 a3 e8R a2 g6 Nf6 c6 Bh6 h5 Ra3 g7 Ne2 g8B Rb3 Qd2 Nc3 Qg2 Qd7 Rg1 Qh7 Rb1 a1N Ba3 Bg5 h6 Nh5 Re7+ Bd7 Bc4 Rd8 Bg8 Qh8 h7 f2+ Kd2 Qe5 h8Q Bh6 Be2 f1N+ Ke1 f3 Bh7 Qh2 Qe5 f4 Qf2 Bg5 Rg4 Ne3 Bf1 Ned1 Bh3 Rb2 Rg7 Nb3 Ra1 Nc5 Ra2 Rb4 Re2 Rb3 Re4 Kb6 c7 Nc6 c8B Bf5 b8Q+ Ka5 Bb7 Kb6 Qa8 Bh6 Bc8 Bg5 Bd7 Kc7 Qa4 Bh6 Qc4 Bg5 Qf7 Bh6 Qg6 Bg5 Qg2 f2+ Kd2 f1R b6+ Kb7 Re3 f3 Bc8+ Kb8 b7 f2 Bd7 Rg1 Bc8 f1Q Qf2 Rg3 Bd7 Qfg2 Ke1 Qf3 Ree4 Be3 Qg2 Ka7 b8Q+ Ka6 Qa8+ Kb6 Qa4 Kc7 Qad4 Bf4 Qdf2 Be3 Qd4 Rb1 Ree7 Rb3 Rg5 Rg4 Qe5 Rf4 Rg3 Be4 Bhe6 Rf6 Rg4 Bf5 Bc8+ Kb8 Bed7 Kc7 Qd4 N3a4 Qf4 Nac3 Qe5
1Qq1n1bn/2N1N1Qr/N2b3b/6Nn/kB2Q2r/1Qq3p1/1r1pB1K1/6Bn b - - 0 1 legal: proof: f4 h5 a4 c5 d4 cxd4 h4 g5 g4 b5 axb5 gxf4 b4 e6 g5 e5 Ra3 e4 Rf3 exf3 Rh2 Qc7 Rg2 Qd8 Rg4 hxg4 Kf2 d5 e4 Kd7 c4 a5 h5 f5 e5 d3 b6 Kc6 e6 a4 c5 Kb5 c6 d4 g6 a3 e7 a2 e8N a1B g7 Ra4 c7 Nd7 h6 Ne5 b7 Nf6 g8N Bd6 b8B Be6 c8Q Ng6 Qe1 Rh7 Ne7 Nh8 Bb2 Bg8 Qce6 Qc8 Ne2 d2 Bc1 d1R Be3 d3 Nd2 Rb1 Bc5 Rb2 Ne4 d2 Kg1 f2+ Kh1 f3 Ng5 f4 Bca7 Qc3 Qb3 Qc8 Qb1 Qc3 Qe4 Qc8 Bh3 f1N Nc1 f2 Kg2 Ng3 Na2 f1N Bg1 Nh1 Bc7 Nfg3 Ba5 Rg7 h7 f3+ Kh2 f2 Kg2 Nf7 h8Q Ngh5 Qh6 g3 Bg4 Rh7 Qg7 Nh8 Bf3 Rb1 Bd1 Bd4 Bf3 Rb2 Bg4 Be3 Be2+ Qc4 Nc1 Bef4 Nd3 Qc8 Nc5+ Bc4 Bd1 Bg8 Na6 Be3 Nf7 Bh6 Ng5 Ra1 Bf3 Rc1 Be2+ Rc4 Qbf3 Ka4 b5 Rd4 Nec7 Ne8 b6 Rdb4 b7 Rd4 b8Q Rdb4 Qee3 Rh4 Nce6 Qc3 Bb4 Qc8 Qfe4 Qc3 Kf3 Qc8 Nec7 f1Q+ Qf2 Qc1 Qfb6 Qc3+ Kg2 Bf4 Qbe6 Bd6 Qb3+
2NbqB1N/b1kB2qn/QB4b1/p2Bn3/r1p1Qr2/1QK3Q1/2n4N/3b3q b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 h4 g5 c4 dxc4 f4 gxf4 b4 e6 g5 e5 Ra3 e4 Rf3 exf3 Rh3 Ne7 Rg3 Ng8 Rg4 hxg4 e4 Kd7 d4 c5 Kd2 f5 h5 a5 e5 g3 e6+ Kc7 g6 g2 d5 f2 g7 f3 h6 f4 e7 Nf6 g8B Nh7 e8Q Bf5 Qb3 Nd7 Na3 Be7 Kc3 Ne5 Bb2 Bg6 b6+ Kc8 b7+ Kc7 Qea4 Qe8 b5 Bd8 Be2 f1N b8Q+ Kd7 d6 f2 Bc1 f3 Bd5 Ne3 Qb6 f1B Qa6 f2 Nf3 g1B Nh2 Nc2 Bg5 Rc8 Be7 Rf8 b6+ Rc6 b7 Rf4 Bef3 Be2 b8Q f1Q Nb5 Qg2 Bf8 Bd1 Na7 Qg5 Qab4 Qf6 Nc8 Qg7 Q4b7+ Rc7 Q7a8 Rb7 Bg2 Rb4 Bf1 Ra4 Bfg2 Nf6 h7 Be3 h8N Nh7 Bg8 Bg1 Qe4 Bf2 Bd5 Be3 Kb2 Bf2 Qg3 Bg1 Qbb3 c3+ Kb1 c4 Bh3+ Qe6 Bg4 Ba7 Bh3 Nd4 Kc1 c2 Kd2 c1Q+ Ke1 Qb1 Kd2 Nc2 Kc3 Bdh5 Bg4 Qh1 Bf5 Bd1 Bh3 Bf6 Bg4 Kd8 d7 Kc7 d8B+ Kd7 Bh5 Qe8 Bb6 Bd8 Bg4+ Rf5 Bd4 Kc7 Bh3 Rf2 Bd7 Rf4 Bb6+
1R2B2Q/4b1p1/k1Rnp3/1qBbQ1p1/1b1n3q/r1B3R1/RB1K4/2Qn2br b - - 0 1 legal: proof: d4 b5 c4 d5 g4 dxc4 a4 e5 axb5 h6 g5 hxg5 e4 Bb4+ Nd2 Kd7 d5 Ke8 Nh3 Nf6 Nf4 Rh4 Ne6 Bf8 Nf3 Rh8 Nfd4 exd4 e5 Ke7 Nf4 Ng8 e6 Kd6 e7 Kd7 Ne6 fxe6 e8R a5 f4 c5 b4 Kc7 h4 Kb6 d6 d3 f5 c3 d7 c2 h5 a4 h6 a3 h7 c4 f6 c3 f7 d2+ Ke2 a2 Ba3 c1B Bb2 c2 Rh3 Ra3 Rg3 Be7 f8B Nf6 Bg2 Bb7 Bc6 Ka7 b6+ Ka6 Qf1 Ba8 b7 Qb6 Rc8 d1N d8B Bd2 Be8 c1B Rc6 Ne4 Qf4 Nd6 b5+ Ka7 Qc4 Bb4 Qc3 Qa5 b6+ Ka6 Qc2 Bcd2 Qc1 Be3 Bc3 Bg1 Kd2 Qb5 Bc7 Nd7 b8R Ne5 b7+ Ka7 Rb1 a1Q Rb2 Qb1 Ba5 Qe4 Ra2 Qh4 Bb6+ Ka6 Bd4+ Qb6 Bc5 Nf3+ Kc2 Rg8 h8Q Nd4+ Kd2 Qh5 Qh6 Qh4 Qf6 Rh8 Qe5 Bd8 Be7 Rh6 Bf6 Be7 Rbc8 Rh8 b8Q Rh5 Qc7 Bb7 Rb8 Rh7 Qd8 Rh8 Rc7 Bd5 Rc6 Rh7 Bf7 Rh5 Qh8 Rh7 Be8 Rh5 Rc7 Qb5 Rc6+ Ka5 Qa1 Qh3 Qf4 N4f5 Qc1 Qg4 Bfd4 Rh1 Qe5 Qh3 Ke1 Qg4 Bd2 Qh4 Bb2 Nd4 Bdc3 Bd8 Kd2 Be7 Rc7 Ka6 Rc6+
Nqb5/1rbQ3Q/p2N2N1/qR1p1n1n/1Q6/3rp2R/pRK1pnR1/4kN2 b - - 0 1 legal: proof: d4 b5 g4 g5 a4 bxa4 e4 c5 dxc5 f5 f4 fxe4 f5 h6 Bf4 gxf4 g5 h5 Be2 Bb7 Bf3 Bc8 Bg4 hxg4 Kd2 Kf7 h4 e5 b4 g3 c4 a6 g6+ Kf6 g7 a3 b5 a2 c6 f3 b6 f2 b7 f1Q c5 d6 h5 Kg5 f6 Kf4 h6 g2 f7 Kg3 c7 Kf2 c6 e3+ Kc2 e4 h7 e2 Rh3 e3 Nd2 Qg5 Ngf3 g1N Ne5 Nd7 b8R Ra7 Ng6 Qa5 Rb5 Qe1 Nf1 Rb7 Rab1 Ndf6 R1b2 Ne7 g8R Qeb4 Rg7 Rg8 h8Q Nf5 Qh7 Nh5 Qd3 Be7 f8Q Bd8 Qd5 Rh8 Qdf7 Ke1 Qd7 Nf3 Qfe7 Nd2 Qe4 d5 Qd4 Qd6 Qb4 Re8 Rg8 Re4 Rg7 Rd4 Rg8 Rd3 Rg7 Ra7 Rg8 Bb7 c8N Qb8 Nb6 Bc8 Na8 Rb7 Rg7 Bc7 Rg8 Bd6 c7 Bf4 Nh4 Bh2 Rg2 Bg3 Ng6 Bh2 Qbe7 Ne4 Qb4+ Nc3 Qf4 Ne4 Qe6 Bd7 c8N Nf2 Qg4 Bc7 Nd6 Bc8 Qed7 Nh6 Qd4 Nf5 Qb4+
3qN1N1/1Rbk4/1p2pNr1/n1qb1qQ1/2R3R1/bR3R1K/3N4/rRn1q2b b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 f5 g4 fxe4 Bh3 Kd7 Bb2 Ke8 f5 h6 Be5 h5 Bf4 gxf4 g5 Nd7 Bg4 hxg4 Qc2 Nb8 Qb3 Nf6 Qd1 Ng8 Kf2 c5 Kg2 c4 a4 c3 h4 b3 d4 c2 d6 c1Q h5 g3 a5 e6 f6 b6 a6 f3+ Kh3 b2 a7 e3 d7+ Kf7 h6 e2 d5 e1B h7 f2 d6 g2 Nc3 b1B Nf3 g1Q Ne4 Qc3 Ra4 Qcc7 Rc4 Bb4 Nfd2 Nc6 Qg4 f1Q+ Qg2 Bh6 g6+ Kf8 f7 Qf5+ Qg4 Nge7 Nf6 Rg8 h8R Qe1 Rh7 Nd5 Rf1 Ba3 Rff4 Rb8 a8N Be4 Rf3 Bg7 Rb3 Na5 Rh4 Qc6 Nc7 Nc3 Nce8 Ra8 Rh7 Bh1 Rb1 Qc2 Qg5 Ne2 Rhh4 Ba6 Rhg4 Qf5 Rb3 Bb7 Rb1 Qdc8 d8R Nc1 d7 Ke7 f8R Qcc5 Rb3 Bh8 g7 Bbd5 Rb1 Q8c7 Rb8 Q7d6 d8R Ra7 Rdc8 Qd8 Nfe4+ Kd7 Rc3 Qe5 Rff3 Qf5 Rce3 Rf8 g8N Be5 Rb7+ Bc7 Rd3 Rf6 Rdb3 Rg6 N4f6+ Kc6 Ra8 Nc4 Qf4 Bb4 Nfe4 Ra1 Ra4 Ba3 Qg5 Na5 Rc4 Kd7 N4f6+
N5K1/BN1q3N/4r1b1/n2N2RR/1np2b2/2p1r1q1/1n1pNn2/1R1RNb1k b - - 0 1 illegal: No possible last move, all moves rejected
n2n1K1B/8/3pp3/2brN2n/4p2B/QBB1BQbb/BBp4k/nQ5q b - - 0 1 legal: proof: c4 d5 e4 f5 a4 fxe4 b4 b5 axb5 Nd7 c5 Nb8 Ra5 Bg4 Ra4 Bc8 h4 Bf5 d4 Nh6 g4 Be6 Ra6 Qd7 Rh3 Rg8 Rc3 Rh8 Rc4 dxc4 d5 Ng8 d6 Qd8 Rc6 Bc8 d7+ Kf7 Rg6 Na6 Rd6 Nb8 f4 cxd6 g5 a5 c6 h6 b6 Ra7 Nd2 Rb7 Ndf3 h5 Nh2 Na6 Ng4 hxg4 Ke2 Nb8 Kf2 Ra7 Ke1 Ra6 b7 Rb6 f5 Rb5 Bh3 Re5 Bg2 Re6 Bf1 Rf6 gxf6 Rh5 Bb2 Rh6 Bc1 Rh8 Ke2 g5 Ke3 a4 Kd4 a3 Kd5 c3 b5 a2 h5 a1N h6 c2 c7 g3 b6 g4 h7 g2 Bc4 g3 Bb2 Nh6 Ba2 Na6 b8B Bg7 b7 Qf8 Nf3 g1N d8B g2 Ba7 Ne2 b8Q g1B Qb4 Bc5 Qa3 Ng3 Qb1 Nh5 Bb6 Bd7 c8B Be6+ Kc6 Nc7 Bd7 Rg8 h8B Na8 Ba7 Qe8 Ba5 Qb8 Bac3 Qb4 Bb6 Qd4 Bc8 Qd1 Bd7 Qh1 Ne5+ Kf8 Bc8 Nf7 Ba6 Bh6 B6c4 Bf4 Bcb3 Bg3 Ba7 Bd7+ Kd5 Nd8 f7 Rg5 Bb6 Bb4 Be3 Bc5 Bf6 Rg4 Bh4 Kg7 f8Q+ Kh7 f6 Rg5 f7 Bh3 Qe8 Kg7 f8B+ Kf6 Bg7+ Kf5 Qb5 Nf7 Qd3 e6+ Kc6 Nd8+ Kd7 Qe1 Ke8 Qh1 Nc4 Kg4 Bh8 Rd5 Kf8 Kf3 Ne5+ Kg2 Qdd1 Kh2 Qf3
4kB2/q1PN3B/1r6/1nqbNpKn/2nRQ1R1/2n3Bb/1Nq4r/5r1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 b4 a5 b6 d5 e3 d3 b7 d2+ Kf2 d4 b5 d3 Ra4 Bc5 Rb4 Bd4 exd4 Nc6 b8R axb4 Rb7 Nce7 Ra7 Nc6 Ra1 Nb8 Kf3 h5 g4 h3 c4 h2 g5 h4 b6 h3 d5 b3 c5 b2 b7 Nd7 Kg4 f3 b8N f2 c6 Qb6 c7 Ne5+ Kf4 Qa7 d6 Nc4 g6 Nf6 g7 Nh5+ Kg5 Bf5 Bg2 f1R Nd7 Rb8 Na3 b1Q Be4 Qc2 Qe1 d1N Bf4 d2 Bg3 Nc3 Nf3 d1N Nfe5 Rb6 Bd3 Bg4 Bh7 f5 Qe4 Nb5 Rc1 Ndc3 Rd1 Rg8 Rd4 Rf8 Rg1 h1Q g8R h2 Rg6 Qhg2 Rh1 Bh3 Rg8 Qg1 Rg7 Na5 Nac4 Rh8 Nb2 Qe3+ Kh4 Nc4 Rg4 Qef2 Kg5 Qg1 Rd3 Qc5 Rd4 Qb8 Nf8 Qa7 d7+ Ke7 d8B+ Ke8 Rg1 h1B Be7 B1g2 Rh1 Bf3 Qd3 Bd5 Nfd7 Rf8 Qf3 Rf7 Bf8 Re7 Nc6 Re2 Nce5 Rh2 Qe4
1n2NRN1/p1kN1q2/p3R1P1/2Bqrp2/7r/n1K1nB2/2R2p1Q/B4b1b b - - 0 1 legal: proof: f4 d5 d4 g5 b4 c5 a4 cxb4 h4 gxh4 c4 e5 cxd5 exf4 a5 Bd6 a6 Bc5 dxc5 bxa6 Kd2 Kd7 e4 f5 g4 h5 g5 h3 c6+ Kc7 d6+ Kb6 c7 h4 e5 b3 e6 b2 e7 f3 e8N f2 d7 h2 g6 h3 Nc3 b1Q Bg2 Nf6 Bb2 Qa2 Rc1 Nd5 Qh5 Nb4 Nf3 Nc2 Ba1 Na3+ Rc2 Bb7 c8R Qf7 Re1 h1B Ne5 h2 Bf3 Bd5 Re4 Bc4 Nd5+ Kb7 Re3 Bf1 Ne7+ Kb6 Qh3 Rh4 Re4 Kb7 Ng8 Kb6 Kc3 Kb7 Kd4 Qa5 Rd8 Qad5+ Kc3 Kb6 Nd6 Kc7 Rf8 Nc6 Qg2 Re8 Ree2 Re7 Re3 Nb8 Ne8+ Kb7 d8B Kc8 Nd7 Re5 Ng7 Kb7 Be7 Kc7 Qg1 Bhg2 Bf6 h1N Be7 Ng3 Bc5 Bh1 Re1 Bb5 Re3 Nf1 Qh2 Bc4 Ree2 Ne3 Re1 Bf1 Ne8+ Kc8 Rb1 Kd8 Rb6 Kc8 Re6 Kb7 Ng7 Kc7 Ne8+
2B5/3PqNK1/n1n5/1rB2Rb1/qRrn2qQ/1bB3Nn/3r1bk1/q1N3R1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 Kg3 e4 h5 b6 f5 d5 c5 b7 c3 d6 c4 Qd4 h3 Bd3 f3 Be2 f2 Qd5 f1Q Qd4 f4 Rh2 h4 Bd3 c2 Qb6 f3 Ra5 c3 Be3 c1B Nd2 b3 Rb5 c2 Rh1 h2 Nh3 b2 Nb1 f2 Rb4 Ne7 Kf6 Na6 b8B Qe2 e5 f1Q+ Nf4 h3 e6 Qfd1 Rf1 h1Q Bf5 h2 Nd3 Nc6+ e7 Rh4 Nd2 b1R Bc5 Rc4 Qb7 Qd7 e8N Qg4 Rf4 Qh7 Qe7 Be6 Rf1 Bd5 Bc8 Bh6 Rf2 Be3 Rf5 Bf2 Qe1 Ra7 d7+ Rc7 Bba7 Rd4 Qe7 Bb3 Nd6 Qhf1 Qe1 h1N N2e4+ Kh2 g3 Kg2 Nf7 Bce3 Nc1 Rd2 Bd4 Qb5 Bac5 Qa4 Bc3 Rb2 Ne2 Qda1 Nc1 Bh6 Nfg5 Qe7+ Kg6 Qd1 Nf7 Bg5 g4 Qe2 Ng3 Q2e4 Na2 c1N Kg7 Ne2 Nc1 Qf4 Bb6 Ned4 Bc5 Bh4 g5 Qg4 g6 Bg5 Qe6 Bfe3 Qd6 Nf2 Qf4 Nh3 Qe4+ Qf3 Qh4 Bf2 Kh7 Qg4 g7 Rb7 g8R Rb5 Kg7 Rbc2 Bb2 Rc4 Bc3 Qe6 Re8 Qd6 Re1 Qe7 Rg1+
4qN1K/6nn/2q1P1R1/1nrRrr1Q/B1rb1RB1/4pn2/1Nb3b1/B2k1N2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 e4 b5 axb5 g5 Qd2 gxh4 Qe3 dxe3 Ke2 Ke7 Kf3 Ke6 Kg4 Ke5 Kh5 Kd4 b4 f5 c4 a5 g4 d5 c5 f3 b6 f2 b5 h3 c6 f4 c7 a4 e5 a3 e6 h2 b7 f3 b6 a2 g5 Nf6+ Kh4 h5 g6 Nh7+ Kh3 h4 Kg4 h3 Kf5 Qe8 g7 Na6 b8R Bb7 g8B Bc5 c8Q Nc7 Bf7 Ra5 Kg6 Nb5 Ne2+ Kd3 Kg7 Kc2 Nd2 d4 Rb1 a1R Rb3 d3 Rb4 Kd1 Nb1 d2 Nf4 R1a4 Rg1 h1Q Bh5 h2 Bb2 Bd5 Bg2+ f1N b7 Be4 Bf6 Bd4 Qc5 Bc2 Rc4 Rf8 Nd3 Rb4 Be5 Rf5 Rd8 Rba4 b8N Rb4 Bg6 f2 Bh3 Qhc6 Nd7 h1B Nf8 Bg2 Rd5 Rba4 Kh8 Rb4 Ne1 Nh2 Nd3+ f1N Bg4+ Nf3 B6h5 Ke2 Bg6 d1R Nd2 Ng3 Nf1 Rc1 Bf6 Kd1 B6h5 Be5 Rf4 Rc4 Bg6 Nh5 Bg7 Bd6 Ba1 Ng7 B6h5 Be5 Bf7 Qb8 Bfh5 Bd4 Be8 Qca8 Bd7 Qe8 Bc6 Na7 Ba4 Nb5 Rh1 Qac6 Rh6 Bb3 Rf6 R1c3 Rg6 Bc2 Qe7 Rc5 Qh4 R3c4 Qh5 Re5 Rd8 Ra7 Rd6 Rf7 Rd5 Rff5 Nb2+
bN2R2B/kR1R1r2/r3p1n1/PB3q2/2b3r1/q1Nr2B1/Qq2b2N/5qnK b - - 0 1 illegal: No possible last move, all moves rejected
5Bq1/B3P3/1RQ2nr1/2b1R1rb/pp3nqB/2NqNR1r/6Nb/2kn3K b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 h4 exf4 Nc3 gxh4 Nb1 a6 a4 Qg5 b4 Qf6 a5 Qd8 b5 axb5 e3 Ke7 Bd3 Kd7 Bc2 Ke8 Ba4 bxa4 Kf1 Kd7 d4 Kd6 g4 f5 Kg2 c5 a6 b5 a7 h5 g5 f3+ Kh2 f2 e4 f1R g6 b4 g7 f4 Qd3 f3 Be3 f2 Bg5 h3 Ne2 c4 Nd2 c3 Bf6 c2 Nc3 c1B Ncb1 h4 Qc4 Na6 Nf3 Rg1 Ra3 f1Q Nc3 Rg5 Ne1 Nc5 Ng2 Qd3 Re1 Bf4+ Kh1 h2 Rb3 Rb8 a8R Rb6 Ra6 Bg4 Qb5 Rc6 Rb6 Bh5 Ra3 Ne6 e5+ Kd7 Qc4 Bc5 Be7 Nf6 d6 Qg8 Bf8 Bg3 Qb5 Nf4 Re2 Ke6 d7 Kf5 d8B Kg4 d5 Kf3 e6 Rh6 Re5 Kf2 Ne4+ Ke2 d6 Kd1 d7 Kc1 Nc3 Rd6 Bc7 Rhg6 d8B Rc6 e7 Re6 Re2 Re3 Qc6 Qb5 Nd5 Rd3 Rb8 Qe6 g8N Rc3 Nh6 Qg8 Nf5 Nd3 Rb3 Qc4 Bd6 Qa6 Bb6 Be5 Ba7 Qc4 Ne1 Qg4 Rb6 Bg3 Kg2 h1N Bdb8 h3+ Kf1 h2 Kg2 Nhf2 Ra3 Nd1 Bd6 Bgf2+ Bg3 Bg1 Re5 Nf4+ Kh1 Qe6 Bh4 Rh3 Rg3 Qg8 Nfe3 Qf5 Nc3 Qd3 Rg4 Ne2 Kg2 h1Q+ Kf1 Qhe4 Rf4 Qf5 N1g2 Bh2 Rf3 Qg4 Ne4 Bg3 Nc3 Nf4+ Kg1 Bh2+ Kh1
4rrR1/nQ2RnKB/1q1qN2p/rpR4b/qrP1b1kn/1BN5/3B1N2/8 b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kf4 b5 c4 d5 e4 g2 a4 d3 a5 g3 a6 d4 g6 d2 g7 b3 e5 b2 a7 d3 Ra4 Qd6 Kg5 f4 Rh2 f3 Rh4 f2 Nh3 g1Q Qf3 d1B Ra5 g2 Ra1 d2 Qe4 Bb7 Bd3 f1R Bc2 Nc6 Rh5 Qb6 Nf2 g1N Bb3 Nh6 Nc3 Rhe8 g8R b1R Qg2 Bg4 Ra5 d1Q Bd2 Rb2 Ra1 Qc2 Re1 Bf3 Re4 Ra1 Re3 Ra5 Re4 Rac8 a8N Na7 Re2 Bbe4 Nc7+ Kd7 Ne6 Nf7+ Kf6 h6 Rhg5 Bh5 Kg7 Nf3 Re3 Nh4 Re1 Bf5 Qa8 Be4 Qb7+ Qdc7 Re2 Rf8 Rf5 Rce8 Ba4 Ke7 Nd4 Bc6 e6 Rd8 Re1 Rb4 Rc5 Qd1 Ree5 Be4 Bc2 Kd6 e7 Rde8 Ba4 Qa1 Bb3 Qd8 Rc7 Qb8 Rec5 Qa4 Ne6 Qd8 R5c6+ Ke5 Rc5+ Qd5 Rd7 Kf5 Rdc7 Ne5 Rd7 Qdd6 Rdc7 Ra8 e8B Rb8 Re7 Rd8 Nh1 Kg4 Bg6 Rde8 Bh7 Nf7 Nf2+
B1r1k1b1/R3N1q1/2P2n1b/2qN1r1q/2R2rq1/N3B1pB/p1QKn3/2n3R1 b - - 0 1 legal: proof: d4 e5 f4 exf4 a4 c5 g3 fxg3 Bh6 gxh2 Bc1 b5 axb5 cxd4 c4 d5 b4 g5 e4 a5 c5 f5 c6 h5 b6 g4 b5 d3 b7 h4 b6 a4 e5 d2+ Ke2 a3 e6 h3 e7 g3 Qc2 d1Q+ Ke3 d4+ Kf4 a2 Ba3 d3 Ke3 f4+ Ke4 f3 Ke3 f2 Qe2 d2 Bc5 Rh4 Nf3 Qd7 Ne5 Rf4 Rg1 h1Q Na3 h2 Rc1 Na6 b8N Nf6 b7 Bh6 Bh3 f1R Ng6 Qhd5 Rc4 Nb4 Na6 h1Q b8R Nd3 Rb7 Nc1 Nb4 R1f2 Bd4 Qc5 Ra7 Qh2 Qd3 Q1g4 Nd5 Qb7 Qe2 d1N+ Kd2 Be6 Be3 Rf1 Qf2 Bg8 Qe2 Qh1 Qd3 Qhf3 Qc2 Qh5 Bc8 Nc3 Bh3 Rd8 Bc8 Qb2 Bb7 N3e2 Ba8 Rc8 Rc3 Kf7 Rc4 Qfg4 e8B+ Ke6 Bd7+ Kf7 Be6+ Ke8 Bf5 Qb7 Be6 Qg7 Nge7 R1f3 Bf5 Rf1 Be4 Rf5 Bg2 R1f4 Bh3
Q6K/1nb1b1p1/1P6/N3qnbn/1R1N2B1/3rpNnB/5R2/qkrRBq2 b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 h5 Bg5 fxe6 Be3 e5 Bc1 e4 g4 hxg4 f3 e5 Kf2 e3+ Kg2 e4 Nc3 e2 Nb1 e3 Nh3 Bb7 Ng1 Be4 fxe4 Qa5 Ra2 Qc7 Ra1 Qd8 Kg3 Kf7 Kf4 Kf6 b4 e1N h4 a5 c4 d5 b5 g3 c5 g2 b6 d3 c6 a3 h5 d2 h6 a4 h7 a2 c7 d4 c8B a3 Qf3 d1Q Qf2 d3 Qc2 d2 Rh2 Qe8 Bb7 Ne7 Ne2 g1B Nd4 Na6 Bc6 Nc5 Rh3 Nf5 Bd3 Be7 Rh2 Rd8 Bd7 Nb7 Be2 Ng2+ Kg4 Ke5 Qc8 Bg5 Qa8 Nf4 Rf2 Bh2 Bb2 Be7 Bc3 Qf1 Ba5 d1N Be1 Nh5 Nd2 Rf8 h8R Nc3 Rd1 a1B Bf3 Rf6 Kg5 a2 Bg4 Ne2 Rh7 Rf7+ Kg6 Neg3 N2f3+ Kf4 e5 Ke4 e6 Bc3 Rc2 a1Q Rf2 Bcb4 Rh6 Bg5 Kh7 Bbe7 Bc8 Rd6 Rf6 Qeb5 Kh8 Qe5 Rb2 Rc6 Rb4 Rc1 Bd7 Bc5 Bc8 Rd7 e7 Rd5 e8N Be7 Rc6 Rd8 Rc2 Rd7 Rf2 Rd5 Nd2+ Kd3 Nd6 Kc3 N6c4 Rd7 Ne6 Kc2 Na5 Rd3 Nf3+ Ne2 Rc4+ Kb1 Ned4 Bhf4 Bh3 Neg3 Bd7 Qc5 Be6 Bc7 Bc8 Qe5 Bd7 Nfd6 Bdg4 Ndf5 Rb4+
2N2Rb1/q1nnR3/1nk5/r6q/1KBP1B1b/rn2B1Rr/prp1N3/QN6 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 h4 g5 f4 exf4 b3 cxb3 Rh2 gxh4 Rh3 Nc6 Rh1 Nb8 g4 Kd7 e4 h5 d4 c5 Kd2 f5 Kc3 a5 b6 c4 e5 b2 b7 f3 g5 f4 e6+ Kc6 e7 f2 e8N f3 g6 a4 g7 h3 Nd6 a3 Bf4 h2 Qc1 h4 Bg2 f1N Be3 h3 Bd2 a2 Qe1 Nd7 b8B Ra5 Qe5 Qb6 Nb7 Ne3 Bd6 Be7 Na3 b1R Bf1 f2 Ne2 Qa7 Qg3 Nb6 Qg4 Nf6 g8R Be6 Bc1 Ned5+ Kd2 c3+ Kd3 c2 Qf3 Rb2 Rhg1 h1R Rf8 h2 Rg3 Nfd7 Nb1 Bh4 Be3 Bg8 Bdf4 Rh7 Qh5 Nc7 Kc3 Rg1 Qg4 h1Q Nd6 Qd5 Nc8 Qh5 Qf5 Rh1 Qd3 Rh3 Qd1 Rf7 Nc1 Rf6 Bc4 f1N Ne2 Nd2 Qc1 Nb3 Kb4 Ra3 Nd2 Qd5 Bf2 Rg6 Ng1 Bg5 Qf1 Na4 Re1 Bh4 Re7 Rg5 B2e3 Nab6 Ne2 Qf3 Qh1 Rga5 Qa1 Qh5 Nb1
1n3k2/brpRRq1N/3r1B2/nPn2qNn/1r4r1/3pKNB1/r6R/Q2B4 b - - 0 1 illegal: No possible last move
1N4Q1/rb6/R1Nr1Bk1/1R1p1qBp/6nB/qPKN3R/1n3qr1/4n1qn b - - 0 1 legal: proof: e4 d5 h4 c5 d4 f5 a4 g5 a5 gxh4 e5 Bh6 Bd3 Bf4 Be4 fxe4 a6 Bd2+ Kf1 Bb4 Ke2 cxd4 Kf1 Bd6 exd6 bxa6 Ke2 a5 Ke1 a4 Kd2 Kf7 c4 a5 g4 e5 f4 h5 c5 e3+ Kc2 d3+ Kc3 e2 f5 e1N f6 a3 b3 e4 d7 a2 c6 e3 g5 d2 c7 h3 Kb2 a4 Kc3 h2 Na3 e2 Nh3 Rh6 Nb5 a3 Nf4 Bb7 c8N Na6 Nd3 Kg6 f7 Qf8 d8B Nf6 Nba7 Nb4 Nc6 Ra7 Nb6 Ng4 Bf6 Qc8 f8B Qf5 Qc2 d1R Nd7 Rd2 Qb1 Rb2 Ndb8 Rd2 B8e7 Rb2 Rg1 h1N Rg3 Rd2 Rh3 Rb2 Nc5 Nbd3 Be3 Rd2 Bf2 Nb2 Bh4 Rh8 Qe4 Rd8 Nd3 Rd7 Qg2 Rd6 Rb1 a1Q Bd8 Qa2 Ra1 Qb1 Qg1 a2 Qg3 Kh7 g6+ Kh6 g7 Kg6 Bfg5 Qf2 Bdf6 Qg1 Nc5 Qf5 Nd3 Qgf2 Rb1 a1Q g8R+ Kh7 Rc8 Qa3 Ra1 Kg6 Rh8 Nf3 Re8 e1Q Re4 Qeg1 Rb4 Ne1 Rb6 Qa6 Ra5 Re2 Rab5 Qa3 Ra6 Q2f3 Qe5 Rg2 Qe6 Qff2 Qg8#
8/1p5r/1kNpPpBQ/NnR1Nbr1/1q2b3/R5Rb/1Bn4r/Bnn3K1 b - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 h4 a5 f4 axb4 a5 exf4 a6 g5 a7 Bd6 Kd2 Na6 Ke1 Bb8 axb8B gxh4 Kf2 h5 e4 d3 g4 d6 c4 Kd7 g5 Kc6 e5 b3 c5 b2 g6 d2 g7 h3 Qe1 d1N+ Kf3 h2 Kg2 h4 Nh3 f6 Ra2 Qa5 Be2 Qb4 Nf2 Nh6 g8N Ng4 Bd3 Rh7 Bg6 Nc7 Na3 b1N Rg1 h1R Nc4 Nb2 Qd2 Nd3 Bb2 Bf5 e6 Nb5 Ra3 Ra5 Ba7 Nc1 Nd3 f3+ Kf1 h3 Ne7+ Kc7 c6 h2 Nde5 Ne3+ Kf2 Nc2 Bad4 Na7 Kf1 f2 Qh6 Nb5 Kg2 f1B+ Kf2 Na1 Rgg3 Nc2 Ba1 B1h3 Bdb2 Ra8 Na5 Kb6 c7 Rg8 c8R Rgg7 Be8 Rg5 Rc4 Rd1 Rc5 h1B Bg6 Bhe4 N7c6 Rd2+ Kg1 Rf2 Rd5 Rh2 Rc5
Nr2B3/5q1R/n4pp1/K1n2r2/BQkp1nb1/2B3Pq/3b1RN1/1Rb2Nn1 b - - 0 1 legal: proof: d4 b5 b4 h5 a4 c5 f4 cxd4 f5 h4 g3 h3 f6 exf6 Qd3 f5 Qf3 f4 Qg2 hxg2 axb5 a5 Kd1 axb4 Kd2 Rh5 Ke1 Rh8 Kd2 Ke7 e4 Kd6 h4 Kc5 c4 d5 b6 b3 h5 d3 Kc3 f3 b7 d4+ Kb2 f6 h6 g6 e5 f2 h7 d2 e6 Qc7 e7 Na6 Ka3 d1N Ka4 b2 e8B Rb8 Nf3 g1B Nh4 Ne7 Nd2 b1N Ng2 Nd5 Bb2 Bh6 Ra2 Qf7 Ka5 Bg4 Bc3 Nb2 Bd3 f1Q Bc2 Bf4 Bca4 Nd3 Rc2 Bg5 Rb2 Qf5 Nf1 B1e3 Rf2 Bc1 Rg1 Nd2 Rh1 Rg8 h8R Nf3 R8h7 Bgd2 Rg1 Rc8 b8Q N5f4 Rgh1 Ng1 Qb2 Kd6+ c5+ Kd5 c6 Ndc5 c7 Kc4 Qb8 Rd8 c8N Rd5 Qb7 Q5e6 Qb2 Rf5 Nb6+ Kd3 Na8 Kc4 Bed7 Rb8 Be8 Qf8 Rb7 Qef7 Rh7 Qh6 Qa3 Qh1 Rb1 Qh3 Qb4+
1R3b2/5bB1/KPb3Qq/3Rp1n1/2k2n1p/5pNB/1nr1BN2/2RqbnN1 b - - 0 1 legal: proof: d4 a5 h4 c5 f4 cxd4 a4 b5 e3 bxa4 f5 g5 Nh3 gxh4 Ng1 Ra6 Ra2 e5 Ra1 Re6 fxe6 dxe3 Ke2 Ke7 Kd3 Kd6 g4 Kd5 b4 f5 c3 h5 b5 e2 e7 e1B e8B h3 g5 a3 b6 a2 g6 h2 g7 h4 Bd2 a4 Bh5 f4 Nh3 a3 Qc1 Nh6 g8N Qg5 Be3 Nf7 Bd4 Qh6 Bfe2 Na6 Ng1 Ng5 Be3 Nc7 Nd2 Nce6 Ne4 d6 Rb1 a1N Nf2 a2 Qc2 Nb3 Rc1 a1Q Bhg4 Nd2 Bh3 Nf1 Bd2 Kc5 c4 d5 Nf6 d4 Nh5 Bb7 Ng3 Bd5 Qb1 Rh7 Qc2 Rc7 Be3 Kb4 c5 Kb5 c6 Qa4 Qc3 Qd1+ Bd2 Rc8 c7 Bc6 Qc2 Be8 Nf3 Bf7 Rg1 h1B Qc6+ Ka6 Kc4 d3 Qe4 Bg2 Qg6 Bh1 Be3 d2 Rg2 Ka5 Ng1 Ka6 Rh2 Bc6 Bc5 f3 Be7 Ra8 c8R Nf4+ Kc5+ Ka5 Rb8 Ka4 Rg2 Kb3 Rh2 Ra2 Bd6 Bb7 Kb5 Rc2 Be7 Be4 Ka6 Bc6 Bf6 Kb4 Rh1 Kc5 Rb1 Kd5 Rb3 Kc5 Rd3 Kc4 Bg7 Qc1 Rb7 d1N Rb8 Nb2 Rd5+ Kc3 Rb5 Nh2 Bc4 Bd2 Rd5 Kb4 Be2 Kb3 Bd1 Kc4 N1e2 Ba5 Re1 Nf1 Ng1 Qd2 Be2+ Qd3 Rc1 Be1 Bd1 Qe2 Rd3 Qd2 Be2 Qd1 Rd5+
3rb1Rn/1rPNB1p1/1b2r1bB/k2b1R2/3pN3/1Bp1NRKn/1r4n1/3Q4 b - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 a5 g5 axb4 g6 hxg6 Ba3 g5 Bc1 g4 d4 c5 Ba3 c4 Bc1 Qa5 c3 Qc5 dxc5 b5 Bh6 Ra3 Bf4 Rxc3 Bc1 Rc2 a4 Kd8 f4 Kc7 h4 e5 a5 d5 a6 g3 c6 Kb6 f5 c3 f6 g2 f7 d4 a7 e3 a8R b3 c7 e4 h5 e2 Kf2 e1N+ Ne2 g1R h6 b4 h7 b2 R1a7 b3 Rh3 Bd7 Rh2 Nf6 Rh5 Nd5 Bg5 Bc5 f8B Ng2 Bd2 e3+ Kf3 Be8 Nc1 e2 Bg5 e1R Na3 b1B Ne2 b2 Bfe7 Nc6 Kg3 Nd8 Rh3 Ndf4 Ra5 Nf7 Bh6 Ba2 Rc8 Rd2 Nc2 b1B Ne3 Rb2 Rd8 Rg8 h8N Bd5 Ng6 Nh8 Ne5 Bbg6 Rb5+ Ka6 Nd7 Bb6 Rb8 Bc4 Rf5 Bd5 Rc8 Ka5 Rd8 Nh4+ Bg2 Rh1 Be4 Nhg2 Bc2 Rf8 Bb3 Rhf1 Rhh5 Nh3 Rf3 Rf2 Rhf5 Rb1 Nf4 Rfb2 Ne6 Rg8 Ng5 Rf8 Nf1 Re6 Rc8 Bef7 Ne3 Rd8 Ne4 Be8 Bc4 Bc5 Ba2 Rb7 Bb3 Bb6 Rb8 Rb2 Qc2 Bef7 Ne5 Rd7 Rg8 Rd8 Qd1 Be8 Nd7
1B1K4/p7/n1p3pR/4NrpB/2PN1r2/Br1N2Qr/q1b1b3/1bnR1R1k b - - 0 1 illegal: No possible last move, all moves rejected
Q3q3/1p3prR/r7/nB1b1Rq1/1K2nN2/PNBp4/1pb1Rp1b/N4Bk1 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 Nd2 gxh4 Nb1 d5 cxd5 c5 Rh2 cxd4 Rh3 Be6 Rh1 Bc8 Kd2 Kd7 e4 Kd6 g4 Ke5 g5 h5 g6 f3 a3 Kf4 d6 Kg3 e5 Kf2 d7 h3 e6 b3 e7 h4 e8B b2 g7 h2 Kd3 h3 Kc4 Bd6 Bd2 Rh7 Qa4 Nf6 g8R Ne4 Rg5 Rg7 Bc3 Ra6 Rf5 Nc6 Nd2 Qg5 d8N Na5+ Kb5 d3 Ne2 Be6 Nd4 Bb3 N8e6 Bc2 N2b3 Bb8 Nf4 Bd6 Rg1 h1B Re1 h2 Na1 Bg2 Bd7 h1Q Ndb3 Qh8 Rh1 Qe8 Rh7 Kg1 Re2 f2 Bc6 Be5 Kb4 Bh1 Nd5 Bh2 Nf4 Nc5 Bd7 Bd5 Bb5 Ne4 Bc4 Qb8 Qe8 Qe5 Qa8 Qe8 Bb5
1N1Br2r/qb2p1q1/2n1kpq1/1B2p1P1/4RpN1/3Qp3/Rn2n1B1/1KN4R b - - 0 1 illegal: No proof kernel
b2rnK2/b6B/N1n4r/rq2qn2/R3PR1k/1n5B/rnRQ3N/BbNq4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 e4 h5 c4 b5 g4 h3 a4 h2 c5 d3 c6 h4 a5 d2 c7 b3 a6 b2 a7 b4 Ke5 d5 Ne2 h3 Ra6 d4 Ng1 d3 Qe2 d1Q Nd2 b1Q Nb3 d2 Bb2 f3 Bc3 f2 Ba1 f4 Rb6 f3 Ra6 Nf6 Bb2 Qe8+ Re6 Kh4 g5 Nc6+ Kf5 Bb7 c8B Bc5 Na1 b3 Bc3 b2 g6 Rh6 Bg2 f1N g7 f2 g8R Bd4 Bd7 Rd8 a8N Ba7 Nc7 Ba8 Nb3 Qd3 Re5 b1B Na6 Qb5 Rc5 Qh5+ Ke6 Ne8+ Rg6 Ng3 Kf7 f1N Kf8 Qe5 Ba1 Nf5 Nc1 Rh5 Rf6 Rh6 Qd3 Rh5 Nge2 Rh6 Rg1 h1R Ng3 h2 Bh3 Rh5 Rg2 Rg1 Qd6 h1R Rc4 Rh2 Re2 Rgg2 Ra4 Rh6 Be6 Rf2 Bg8 Rf3 Ra2 Ra3 Bh7 Ra5 Rf7 N1e3 Rf2 Nc2 Ra4 N2d4 Nf1 Nb3 Qd7 Qf3 Rf6 d1N Rc2 Nb2 Qd2 Qd1 Rf7 Rg2 Nh2 Nfe7 Qd4 Nd3 Rc3 Ra2 Rc2 Nb2 Rff2 Nf5 Qd2 Ncd4 Rf3 Nc6 Rf4+
4qbb1/rnq2B2/2b2q1N/1NnnP3/R3QR2/b1Br4/2knBK1R/1r2nN2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 c4 Kf6 a4 Ke5 h4 d5 h5 g5 a5 b5 a6 f5 a7 d3 h6 Kd4 c5 g3 c6 d2+ Ke2 b3 c7 g4 e5 b2 h7 b4 Qb3 d1N Ra2 g2 Ra6 g3 Qa2 b3 Ra5 f3+ Ke1 f4 Nd2 Kc3 Qb1 d4 Rh4 d3 Rh5 Na6 Rh6 Nf6 Rb5 Ne3 Rh1 Bb7 c8B Ned5 Rb4 f2+ Kd1 f3 Rb6 Qc7 Rh3 Ne8 Rbh6 Nc5 R3h5 Bc6 Bb7 Nd6 Nc4 d2 Be2 f1B Rh1 f2 Qf5 b1R Bf3 b2 Na3 Bc4 Bc8 Ndb7 Be2 f1N Nf3 g1N R6h2 g2 Be6 Ba2 Nd4 Nf3 Bf7 g1B Nac2 Ne1 Ne3 Rg8 h8N Rg3 Qe4 Rh3 Ng4 Rd3 Ne3 Bf2 Rg1 Bh4 Rg4 Bhe7 Rf4 Bc4 Beh5 Ba2 Ke2 d1Q+ Kf2 Nd2 Be2 Qa4 Nf1 Qb5 Nf5 Kc2 Nd6 Bd7 Ne8 Ne3 Bg6 Ra1 Rh6 Ne6 Rh5 Ba3 Nf7 Nec5 Nh6 Bg8 Rh3 Nd5 Nd6 Qbc6 Rh1 b1Q Rh2 Qbb5 Bb2 Rb1 Bc3 Qba6 Bf7 Qca4 Ndf5 Qf6 Nd6 Qac6 Nb5 Qce6 Bd4 Qe8 Ba1 Bc6 Bc3 Rb8 a8R Rc8 Ra6 Ra8 Ra5 Ra7 Ra4
2rrrb2/K3BPb1/bn5b/NrR1B3/1qN3Q1/N1q1Rb2/2n1r3/3kR1rB b - - 0 1 illegal: No possible last move
N1q1N3/n1bN1Rr1/n2R2Qr/b1q2P2/b6r/4n1Bb/1pRbB2K/4qk1B b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 a4 Kf7 c4 Ke6 g4 Ke5 a5 b5 f3 h5 Kf2 d5 Kg2 h3+ Kg3 d3 c5 Kd4 f4 e5 a6 h2 c6 d2 g5 Ke3 a7 h4+ Kg2 d4 g6 b3 g7 b4 c7 d3 Bb2 h3+ Kg3 Na6 Be2 Ne7 g8N Rh4 Bh5 Nc6 Bg6 Bd6 Qc2 d1B Qc4 d2 Bc1 b2 Be8 b3 Nc3 b1Q Nge2 b2 Nf6 Ba4 Rf1 h1Q Qb3 h2 Qg8 Bh3 c8B Qc2 Bb7 Qc8 Nb5 Bc7 Nd7 Qc5 Nec3 Rb8 a8R Na7 Bc6 Rb7 Nd5+ Ke2 N5b6 d1N Nd6 e3 Qg6 e4 f5 Rh6 Rf2+ Ke1 Rg2 e2 Bf4 e3 Bf7 Qf1 Ne8 h1R Bc4 Qg1 Rb8 Kf1 Na8 Rh2 Ra3 Qh1 Rd3 e1B+ Kf3 e2 Rd6 Bb4 Kg3 Ne3 B4b5 Bd2 Bd3 Rb6 Rb7 Rh7 Bf3 Rg7 Bde4 e1B+ Rf2+ Kg1 Be2 Ba5 Bg2 Bed2 Bd5 Qe4 Be5 Qb1 Bh1 Qa1 Rf4 Rb4 Rc4 Qc1 Rc2 Rh4 Bef3 Kf1 Bf4 Rf2 Bd1 Rf3+ Kh2 Rh6 Bg3 Rf4 Rf6 Rd4 Rf7 Re4 Rb6 Reh4 Rd6 Qb1 Bh5 Qe1 Be2+
B2Rq2N/N4b1K/nqPb1B1R/5nq1/B2kN3/1Rb1r1r1/3r1nnp/2Q2n2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Ke5 g4 b5 a5 d5 c5 h5 a6 b3 a7 b2 f3 e3 Kd3 b4 c6 h3 g5 h4 g6 e2 g7 e1N+ Kd2 b3 Ba6 h2 Bf1 d3 Ke3 h3 Bg2 d2 Ra2 d4+ Kf2 d3 Kg3 Nh6 Kh4 Rg8 Kg5 Na6 Kg6 Nf5 f4+ Kd4 Qf3 d1Q Ra5 e5 Rb5 d2 Rb6 e4 Na3 b1Q Kh7 e3 Bf1 b2 Bb5 e2 Qf1 Qg5 Ba4 Be6 Rb3 Re8 a8B Ng2 Qe1 Bd6 Nf3+ Kc5 Qf1 e1B Nb5 Qe2 Na7 d1R Nd2 Kd4 Ne4 Bf7 Bd2 Re5 Bb4 Bc3 Ba3 Rd3 Qc1 Rd8 g8R Rg3 Rh8 Rd7 Rd8 Ree7 Rf1 h1N Bb4 Nf2 Rh1 Qbc2 Ba3 b1N Rh2 Nd2 Bb4 Nh6 f5 Qb2 f6 Nf5 Rh1 Nf1 Ba3 Bc7 Bd6 Re5 Be7 Bd6 Rh2 Qb5 Rh1 Q2e2 Rh2 Qb6 Rh1 Bd5 f7 Qee3 f8N Bf7 Ng6 h2 Rg1 Qf6 Nh8 Qeg5 Nd2 Ree3 Ne4 Qe6 Bf8 Qe8 Be7 Nd2 Rf1 Nd3 Rf4 Nf2 Rh4 Nf1 Bf8 Re7 Rh6 Re6 Be7 Re2 Nf6 R6e3 Ne4 Rd2 Bf6+
1BbkN3/K4b1R/2RBqq2/2nnrbbB/1b2RNrP/Q2q4/N3p3/1r3b2 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 c4 g5 a4 b5 f4 d3+ Ke3 b3 f5 d4+ Kd2 e3+ Ke1 b4 c5 b2 c6 g3 c7 b3 a5 d2+ Ke2 e4 a6 g2 f6 g4 a7 g3 Qc2 d1B+ Ke1 d3 Qc3 e2 Kd2 Nd7 Ke3 e1Q+ Kd4 d2 Qc4 e3 Nc3 b1Q Ra5 b2 Na4 Nc5+ Qd5 Be2 Nc3 d1B Na2 Ne7 Nh3 g1R Qd6 g2 Nf4 Rb8 a8N Bb3 Ra7 Bf7 Rh3 Bd3 Be2 Nd5 Bh5 Bf1 Rg3 Qh7 Rg4 b1B Qa6 Bd6 Qa3 Bbf5 Bd2 Rb1 Bc1 Bb7 c8R Qh6 Rc7 Bbc8 Rc6 e2 Rb7 Qg3 Nc7+ Kd7 Be3 Re8 Bf2 Qb3 Bg3 Re5 Bh2 Qe7 Ne8+ Kd8 Ra7 Qe6 Bg3 Bg8 f7 Qhf6 f8B Qc2 Rh7 Bf7 Nb4 Qd1+ Kc4 Qd4+ Kb5 Qd3+ Ka5 Rh1 Na2 g1B Bh2 Be3 Bg3 Rg1 Bh2 Nb4 Kb6 Nd5+ Ka7 Be7 Bg3 Bd2 Bh2 Bb4 Bg3 Qh6 Bh2 Bg5 Bd6 Qhf6 Ng6 Re3 Re4 Rg4 Bhe5 Bg2 Nf4 Bf1 Rd4 Re4 Bb8 Re3 Bed6 Re5 Re4
2b1n2N/1R1n1r2/2B1k2n/1q2bR1b/3bb2P/1q6/RrpB1b2/KB1QN1qN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Kd7 a4 b5 d4 c5 Kd2 g5 Kc2 f5 Kb2 f3 h4 f2 a5 g3 a6 g4 e5 g2 d5 f4 d6 g3 a7 b3 Ra2 b4 Ra6 f3 Ra2 c3+ Ka1 c2 Bh6 c1B Bf4 c4 Na3 b2+ Kb1 c3 Nb5 Be3 Qd3 Ke6 d7 Qg5 d8R Nd7 Qe2 Rb8 a8B Bd4 Ra6+ Bd6 Be4 Nh6 Nh3 g1Q Na3 g2 Nb5 Rf8 Bg6 Rf7 Rf8 Qh5 Ka2 b1B+ Ka1 b3 Bd2 Be4 Qd1 Rb7 Be2 f1N Na3 f2 Bf3 Ng3 Nc2 f1B Ra2 Ngf5 Nf2 Be2 Ne1 Ng7 Rh3 Ne8 Nh1 Qg5 Rg3 Q5e3 Bh7 Qd3 Rg7 Qb5 Bg6 Bb1 Bfe4 Bh5 Bc6 Be4 Bh7 Qe3 Bg6 g1B Bh7 Bf2 Bf5+ Ke7 e6 B6e5 Rh7 Kd6 e7 Qg3 Rg7 Qg1 Bh7 Ke6 Bg6 Bef3 Bb1 Be4 Rh7 Nc7 e8N c2+ Bc3 Rb6 Nd6 Ne8 Rg7 Re7 Nf7 Rb8 Nh8 Rf7 Rg5 Rb7 Rf5 Rb8 Ra6 Rb7 Rg8 Rb6 Rg7 b2+ Ka2 Rb7 Bd2 Qe2 Rg3 Rb5 Rb3 Rc5 Rb7 Rb5 Ka3 Qc4 Ba2 b1Q Raa7 Rd5 Ra6 Qb6 Ra5 Rb5 Bb1 Rb2 Ra6 Qbb5 Ra4 Rb3+ Ka2 Rb2+ Ka1 Qcb3 Ra2
b2r3r/1B2r2n/kPpQr1N1/n4b2/nB1K2B1/1R2r3/1RqN1Nq1/4bRr1 b - - 0 1 illegal: No possible last move
1nn1b1kn/N3QbR1/r2b2rq/8/5PnR/NBKRp1bq/2nBB1N1/2q5 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 d5 g4 e5 a4 h5 c4 b5 g5 e3+ Kd3 e2 a5 e1B c5 b3 c6 e4+ Ke2 h3 c7 h4 a6 e3 Kd3 h2 a7 b2 Qg4 b4 Qh3 b3 Ne2 Bd6 Na3 b1B+ Nc2 b2 Bd2 Qf6 Bc3 Qh6 Ra6 Ba2 Ng3 b1N Na1 Bd7 c8B Ne7 g6+ Kg8 g7 Ng6 Rc6 Be8 Rc7 Na3 Rg1 h1Q Nf5 Nc2 Re7 Bg3 Qg4 h3 Rd7 h2 Nh4 Qg2 Bb7 h1N Qg5 Qh3 Ng2 Rh7 Ba6 Nh8 Bd2 Bb3 Qe7 Nf2+ Ke2 Ba2 Bc4 Ng4 Rh1 d3+ Kd1 Bb3 Be2 Ba2 Kc1 Bb3 Kb2 Ba2 Bc1 d2 Kc3 d1Q Bd2 Qc1 Rh2 Q6h5 Rd8 Rh6 Bb3 Rg6 Rh1 Qh6 Rd7 Ne5 Rc7 Ned7 Rd1 Ne1+ Nc2 Nb6 Rb7 Nc8 Rd7 Qb1 Na3 Nc2 Rh1 Qc1 Rd8 Qf5 Rh4 Qh3 Qe5 Kf7 g8N Kf8 Ne7 d4+ Kc4 d3 Nc6 Kg8 Qe7 Bb4 Rd5 Bc5 Kc3 Bd6 Be1 d2 Rd3+ Re6 Kc4 d1N Bd2 Nf2 Kc3 Qg5 Ba4 Bd5 Bb3 Rg6 Rh7 Ng4 Rh4 Na6 Rh7 Bdf7 Rh4 Rb8 a8R Qh6 Ra7 Rb6 Rd7 Nb8 Na7 Ra6 Qe5 Be6 Rh7 Bd5 Qe7 Bdf7 Rg7+
2Rr2nn/4R1B1/b5Bq/qqk2b2/2Pnnp2/NbN4b/Q1R4N/2br1BK1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kd6 g4 b5 a4 h5 e4 f5 e5+ Kc5 g5 d5 a5 b3 g6 d3 a6 b2 a7 d2 g7 h3 e6 b4 e7 h2 e8R b3 Qe1 d1B Ra6 d4 Rh6 h4 Nd2 b1B Bb2 d3 Ne2 f3 Rh5 h3 Rh7 f4 Ng3 Nd7 Nh5 Ba6 Bg2 Ne5 Rg1 h1Q Rf1 h2 Bc1 b2 Rg1 Qa5 Qf1 Bb3 Re7 Rd8 a8N Nf7 Qe2 Rd5 Nf1 d2 Nc7 Bf5 Re8 b1Q Rc8 d1B Qc2 Be2 Nhg3 Rd1 Qb2 Bed3 Qa1 Bh3 Ne2 Bdf5 Nc3 Bd6 Qa2 Be5 N3d5 Bb2 Nc3 Ba3 Bd2 Bc1 Be1 Nf6 Bd2 Rd8 g8B Nh8 Bf7 Ng8 Bg6 Qb2 Re7 Qb1 Be1 Qb2+ Nd2 Qb1 Kf1 f2 Nf3 Qb2 Ra8 Qb1 N7b5 Qb2 Na3 Qb1 Ke2 f1N Kf2 Ng3 Bf1 Ne2 Rg2 Nd4 Bd2 Qe4 Rc8+ Qc6 Ne5 Bfc2 Ng4 Bf5 Rg3 Qd5 Rg2 h1N+ Kg1 Ng3 Nh2 Ne4 Be1 Qe5 Rc2 Qg7 Bh4 Qh7 Bf6 Qh6 Ra8 Qe8 Bg7 Qeb5 Rc8+
Nr2R1k1/nr5N/6Bb/br3qBp/1N2QnnR/1rr1P2n/b3B3/1qR4K b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 b5 g4 f5 Kg2 Kf7 a4 c5 d4 h5 a5 f3+ Kh2 h3 g5 f2 a6 b3 e3 b4 a7 c3 d5 f4 d6 c4 d7 f3 Qd4 c2 Qd1 c3 Qe2 b2 Ra6 b3 Na3 b1R Bd2 c1B Rc6 b2 Rg6 c2 Rc6 Ne7 Nb5 Qa5 d8R Ng6 Rb6 Nf4 Qd1 Rh7 Rh6 Kg8 Be1 Bd2 Qe2 c1R Rb6 Nc6 Qd1 Rb8 Qc2 Bb4 Rd1 Be6 a8N Bh6 Qe4 Ba2 Na3 Rc3 Nc2 Na7 Re6 Qf5 Bc4 f1Q Bh4 f2 Nf3 Rg7 Be2 Ba5 Re1 Rgb7 Re8+ Kf7 g6+ Kg7 Kg3 h2 Ng5 Qg1+ Kf3 f1N Rd1 Rc1 Nh7 b1R Be7 R1b5 Nb4 Rb1 Bg5 Rbb3 Rb1 Ng3 Ra1 Qd1 Kf2 Nf1 Rb1 Qd3 Rc1 Qb1 Kf3 Nd2+ Kf2 Nf3 Kg3 Ng1 Kf2 Qf8 Kg3 Kh8 g7+ Kg8 Kf2 Nf3 Kf1 Ne5 Kf2 Ng4+ Kf3 Kf7 g8B+ Kg7 Bd5 Qf5 Bg8 Kh8 Bf7+ Kg7 Re5 Kh8 Bg6 Kg8 Re8+ Kg7 Rhg1 h1N Rg2 Nhf2 Rh2 Qb2 Rhh1 Qb1 Rh4 N2h3 Kg3 Ngf2 Kh2 Ng4+ Kh1 Rcc5 Re7+ Kg8 Re5 Rcc3 Re8+
RB2R1q1/5bnr/2Nr2BN/br4Pq/K2n1pb1/3kB3/1Q3rnN/R1r4b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 d4 Ke6 Kd2 Kf5 Kc2 Ke4 g4 f5 a5 c5 a6 b5 a7 h5 g5 b3+ Kc3 b2 d5 b4+ Kc2 f3 e3 f2 d6 c3 Kb3 h3 d7 c4+ Ka4 f4 Qd2 c2 Ra3 h2 Qd1 b3 Bd2 c1N Ba5 c3 Qe2 c2 Ra2 h4 Qd1 h3 Qd6 Nc6 Bc4 f1R Qb4 Nh6 Qb7 Nd3 Bf7 c1R Ra1 Rf2 Bc7 Bb4 Ne2 Rh7 Nd4 Nf5 Bb8 Ba5 Bg6 Ne1 Nd2+ Kd3 e4 b1R e5 b2 e6 Qg8 d8B Ng2 Re1 h1Q e7 h2 e8N Be6 Ng7 Bf7 Re8 Qd1+ N4b3 h1B Nf3 Nd4 Nh2 Qf3 Bb6 Qh5 Bd6 Rb8 a8R Rd8 Bb8 Rd6 B6a7 Rc5 Qb4 Rbc1 Qa3 b1B Qb2 Rb5 Bc5 Be1 Na5 Bba2 Nc6 Ba5 Bca7 Bad5 Bc5 Bf3 Bb6 Nc2 Be3 Bg4 Ne6 Nd4 Ned8 Bd5 Nf7 Be6 Nh6 Bf7 Re4 Ng7 Re8+
n4bRN/1b1N3K/1r1n2B1/PR2qR1p/rb3qr1/q1Q3r1/2r1Bb1k/3N2B1 b - - 0 1 illegal: No possible last move
3Br3/r3q1PN/6n1/Nn1p1bb1/1Bnb1nQn/2N4R/bqB5/1rkRRK2 b - - 0 1 illegal: No possible last move
K7/bn2n1b1/nQ1N1b2/N3npR1/Bnrb4/2rRb1k1/3Bq1PN/RbB5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 h5 b4 a5 b5 f3 e3 a3 b6 c3 b7 h3 d5 a4 Bb2 f2 Bd3 f1N Qc1 h4 Ra2 c2 Qd1 c1B Qc2 c4 Rh2 c3 Nf3 Nd2+ Kd4 Bf5 e4 Qe7 Ne5 Bg7 Qd1 c2 Qf3 Nc4 Qg3 Na5 Qe3 Na6 b8R Nb7 Rf8 Rc8 Qe1 Rc3 Rh1 h2 Qg1 h3 Qe3 Rh4 Re1 h1N Rd1 h2 Bb5 Nf2 Nd2 h1N Ra1 a2 Nf3 a3 Rd3 Ng4 Ba4 Nhf2 Nh2 f6 Nc6 Ne5 Na5 Bh7 Rb1 a1B Re8 Bd2 Bc1 a2 Rf8 Bb2 Ra1 Be1 Bd2 c1B Rc8 Qe8 Rc5 Ne7 Qh6 Qh5 Qe3 Qe2 Rb5 Kd7 d6 Ke6 d7 Rg4 d8B Bg6 Qh6 Bf5 Rf3 Nfd3 Rc5 Ndb4 Rd3 Bf2+ Qe3 N5g6 Bc7 Bg1 Bf4 Bf2 e5 Rh4 Rb1 a1B Rb5 Be4 Bh6 Kf5 e6+ Ne5 Rd5 Ng6 e7 Rg4 e8N Ne7 Nf3 Rf4 Nd6+ Kg4 Nh2+ Kh4 Rc5 Rg4 Rc8 f5 Rg8 Be1 Qg1 Bf2+ Bhe3 Bf6 Rg5 Kg3 Qd1 Bg7 Qb3 Na2 Qb5 N2b4 Qb6 Rc8+ Bc3 Nbc5 Qa7 Nb7 Rd1 Rc6 Qc5 Ned3+ Kc4 Rc8 Kb5 Rc7 Be1 Bbf6 Kb6 Ne5 Ka7 Bc3 Ra1 Bb1 Ka8 B3b2 Qb5 Rc2 Rh5 Rgc4 Bg5 Bf4 Bc3 Ba7 Qb6 Bd2 Be3 Bdc1 Rd3 Bd2 Bed4+ Be3 Bd2 Nbc6 Bc5 Bd4 Ba3 R2c3 Bac1 Ncb4 Rg5+
6b1/1q4nn/2B2NN1/B1bNr3/r3n3/Q1P2Knq/2Rp1bRR/2brBkq1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kd6 h4 Ke5 e4 b5 c3 d5 a5 g5 a6 f5 h5 d3 h6 g3+ Kf3 d4 h7 d2 a7 g4+ Ke2 g2 Qe1 d1R Ba3 b3 Qh4 g3 Bb4 b2 Qg4 d3+ Kf3 d2 Be7 b4 Qh4 b3 Bg5 Nd7 Ra6 Nh6 Ra3 Nf6 Rh2 Qd7 Ne2 g1B Rg2 Bf2 Rh2 g2 Ra4 g1B Rh1 Ba3 Rh3 Re8 Kg2 f3+ Kh1 f4 h8B Qb7 Bg2 Be6 Rh2 Nf5 Qg3 Qd7 Bh4 Bg8 Qg4 Bfc5 Be1 f2 Ra5 f3 Nf4 f1N Nd5 f2 Bg7 Rac8 Bf8 Nh7 a8R Ng7 Be7 Rc6 Bd8 Ra6 Bf3 Ree6 Kg2 Ng3 Qh4 f1N Qe7 Bgf2 Rb8 Bab4 Ra2 Ra4 Na3 b1Q Rc2 b2 Ba5 Qc1 Rf8 b1Q Rf4 Qb3 Rg4 Qb7 Qf8 Qc4 Qa8 Qd3 Qa7 N3f5 Qa8 N1g3 Qa6 Re8 Qa8 Nd6 Nc4+ Ke6 e5 Kf5 e6 Nde4 e7 Ba3 Qa6 Qcb1 Ne5 Bc1 Ng6 Qe3 Be2 Qh6 Kf3 Qh3 Rf4+ Kg5 Bb5 Kh5 Bc6 Q1b6 Ne5 Q6a7 Rf8 Kh4 Ng6+ Kg5 Rf4 Bfd4 Nc7 Rc4 Bb6 Bd6 Qa1 Ra4 Ba5 Bg1 Qa3 Qd4 Nh8 Bc5 Rf6 Kh4 Kf4 Kh5 Ng6 Qf2+ Ke5 Kg4 Rf8 Qff1 Rff2 Qfg2 Re2 Kf3 Rf2+ Ke3 Re2+ Kd3 Kf4 Qh1 Reg2 Bgf2 Kf3 Qg1 Kf4 Ke2 Nd5 Kf1 Kf3 Bf7 Ne5 Rd8 e8N Bg8 Nef6 Re8 Ng6 Re7 Nh4 Re5 Ng6
1N1BR3/1p2n2R/P2R1nBb/Qbr5/NB1q4/2br1Nn1/kr3nbK/1qq5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Ke6 h4 Kd5 a4 Kc4 e4+ d3 h5 g5 e5 f5 e6 d5 a5 d4 c3 b3 e7 f3+ Kh2 b2 e8N f2 a6 g3+ Kg2 f4 h6 g4 h7 Ne7 Nf3 Bd7 Qe1 Kb3 c4 d2 c5 d1N c6 d3 c7 d2 c8R Bh6 Nd6 Bb5 Nh4 Nd7 Ndf5 Nf6 Ng6 Qd4 Rg1 f3+ Kh1 g2+ Kh2 g3+ Kh3 Re8 Bd3 f1B h8B f2 Nc3 b1Q Nfh4 Rd8 Rc6 Rac8 Rd6 Rc5 Nf8 Re8 Rh1 g1B+ Ng2 Rec8 Bg6 R8c6 Ra4 Rb6 Nd7 Bh2 Rc4 Bg1 Na4 Ka2 Ba3 Bh2 Bb4 Qc1 Qe4 Qb1 Kh4 Qc1 Ne1 g2 Kh3 Be5 Nf3 g1Q+ Kh4 Bg2 Nb8 f1N Rc2+ Qdb2 Qe1 Nf2 Bg7 d1R Re2 Bc3 Re4 Ned5 Re8 Ng3 Bf8 Qb3 Be7 Qbb1 Bd8 Rd3 Rg8 Bg7 Nb2 N2e4 Ba5 Bd7 Bf5 Qd4 Re8 Bb4 Bg6 Ne7 Na4 Bf8 Rh2 Bd2 Rh3 Rb2 Bc3 Bb5 Bca5 Nfg8 Kg4 Bg7 Rh7 Bgh6 Kh4 Ngf6 Bc3 Bh1 Kh3 Nf2+ Kh2 Bg2 Bca5 Bb4 Qc3 Rg5 Qc7 Bc3 Bb4 Rc5 Qa5
r5r1/BBNrP3/p4n1K/QqbBq2b/1r1N3N/n3R3/1Rr2r2/1b1b1R1k b - - 0 1 illegal: No possible last move
4n1r1/1k2p1Rq/B1q1Q2N/2rP2b1/b4B2/1nN1N1n1/KRB2b1b/1R1rn2r b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 d4 Kc6 Kd2 h5 Kc2 b5 Kb2 b3 a4 c3+ Ka3 e3 f4 e2 a5 e1N g5 b2 a6 c2 a7 h3 g6 b4+ Ka2 b3+ Ka3 h4 d5+ Kb7 g7 c5 f5 h2 f6 c4 f7 h3 Be2 c3 Qd4 Qd6+ Qc5 Nf6 g8N Nc6 Bg5 c1B Bf3 c2 Ne2 Be3 Nh6 c1B Nec3 Ne8 Be4 Nd4 Bd3 Bg7 f8R Bf2 Bb5 Bd7 Na2 Be5 Bf4 Qc6 Rg8 Rc8 Rg7 Rg8 Bd3 Rc7 Rhg1 h1R Nbc3 h2 Bc2 Rc8 Nd1 b1R+ Nb2 Bce3 Qd6 Rd1 Nc4 b2 Qe6 b1Q Nc3 Nb3 Ra2 Bd2 Rb2 Bb8 Be5 Bg5 Bf4 Be5 Ne3 Bc7 Bf5 Qe4 Ka2 Be5 Bh3 Qh7 a8B+ Ka6 Rg2 Qd6 Rb1 Bg3 Rf2 Rg1 Nf7 h1N Bf5 Ba4 Re2 Rc5 Nh6 Bf2 Bh2 Qc6 Bb7+ Ka7 Ba6 Bd6 Bc4 Kb7 Reb2 Bb8 Bc7 Rf1 Bc2 Rg1 Bd8 Bh2 Bc7 Ng3 Bf4 Rh1 Ba6+
1b1qk1nb/N1Pnr3/2KBb3/r2p3n/2R1RB2/4RN2/r1N1B1Qq/r5nb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 d3 c5 b3 e5 b4 a5 g3+ Kf3 b2 c6 b3 c7 g2 h5 d2 h6 g4+ Ke2 f3+ Kd3 f2 Kd4 f4 e6 f3 a6 g3 h7 Bg7+ Kc5 Nd7+ Kc6 Bd4 Na3 b1B a7 b2 e7 Be4 Nc4 b1Q Ra3 Qa2 Bd3 f1R Kb5 f2 Rh4 Re1 Qe2 d1R Bf4 f1N Nf3 g1B Qg2 Ra1 Kc6 Qc2 Be2 Ra2 Be3 Rea1 Bf4 Bgf2 Re3 Bc3 Qh1 g2 Na3 g1N Qg2 Ng3 Rg4 Qb2 Nc2 Nh5 Bd6 Bf6 Rf4 Qe5 Rh4 Qh2 Bf4 Rb8 a8N Rb5 Nb6 Rba5 Bd6 Bf5 Rc4 Be4 Na4 Bd4 Nc3 Ba7 Bf4 Bb8 Nb5 Bh4 Na7 Bf6 Qf2 Nc5 Qf1 Be6 Qg2 Nd7 Bd6 Nh6 Bf4 Rf8 h8B Rf7 Bg7 Ng8 Bgh6 Bh8 Bd6 B4f5 Bhf4 Bh3 Qf2 Bg2 Ree4 Bh1 Qg2 Rg7 Re3 Kf7 e8R Rh7 Re7+ Kf8 Rg7+ Ke8 Rg5 Rg7 Rge5 Re7 R5e4
1r3Q1b/R4Bqn/b6n/6NB/3P1r1k/q4q2/pNN1RR1p/B1K1bnqq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 e4 Ke7 g4 Kf6 b4 Kg5 e5 a5 b5 f5 e6 c5 d3 h5 Kd2 a3 b6 f3 e7 h3 e8R f4 b7 a4 Bb2 h4 Bc1 h2 Re6 f2 Re8 a2 Qe2 c3+ Kd1 c2+ Kd2 h3 Re5+ Kh4 g5 c4 g6 a3 g7 f3 Rc5 c3+ Ke3 Qe7+ Re5 Nh6 g8B Qg7 Rf5 Nd7 b8N Ra4 Na6 Rf4 Nc5 Nf6 Bf7 Ba6 Bb2 Nh7 Na4 c1Q+ Qd2 c2 Be2 f1Q d4 f2 Beh5 Bb4 Bc3 Rb8 Nb2 Qcd1 Qd3 Qf3+ Kd2 c1B+ Kc2 Q1g2 Qf1 Be7 Re5 Bd2 Re2 Be1 Kc1 Bf6 Nd2 Re8 Ndc4 Rb8 Ne3 Q2g5 Nc2 Q5g6 Qg2 f1N Rf2 Qgd3 Qg6 Be5 Qd6 Qdg6 Qf8 Qgg4 Ne2 Qg1 Ng3 Bf6 Ne4 Be5 Rb1 a1Q Ng5 a2 Re2 Qgg3 Rg1 h1Q Rgg2 h2 Rgf2 Qhg1 Ba5 Qa3 Bc3 Qf3 Qe8 Qgf8 Kd1 Qgh1 Na4 Bh8 Bb2 Qg7 Qf8 Bb4 Bc3 Ng3+ Kd2 Ba5 Rb7 Qag1 Ra7 Nf1+ Kd1 Bd3 Ba1 Be1 Nb2 Ba6 Kc1
2nN4/2qk2B1/K2n2rQ/1r2RqrB/2nPr3/p3r1NR/1B1bNp1R/4bb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 h5 b4 c5 d4 a5 Kd2 f5 Kc3 a3 e4 h3 b5 f3 g5 h2 b6 f4 e5 a2 b7 h4 e6 a4 e7 h3 g6 f2 g7 a3 Nf3 Kd7 e8R Rh6 Bd3 f1Q Ne1 f3 Qd2 Ra5 Qf2 Ne7 g8N Rg6 Be4 Rb5 Bd3 Qc7 Bg5 Nbc6 b8B Na5 Be3 Ba6 Qg2 Nc8 Rg1 h1N Be4 h2 Nd3 Ng3 Nh6 h1R Nf7 Rh4 Nc1 Nf5 Qc2 Nfd6 Nd8 f2 Qa4 Qh3 Re5 Qf5 Bf3 Re4 Ne2 Bh6 Bc1 Bd2+ Kc2 c3 Kd3 c2 Bb2 c1B Nbc3 Be1 Ng3 Bcd2 Rg2 Rg5 Rh2 Nac4 Nce2 Rg6 Rc1 a1R Rc3 Rd1 Bh5 Rb1 Ba1 Rb3 Bb2 Rg5 Kc2 Rg6 Rf3 Rbe3 Qb4 Bc3 Kb3 Bcd2+ Ka4 Na5 Nh1 c4 Rfh3 c3 Nhg3 c2 Qc5 c1R Qb6 Ndb7 Qf6 Rcc5 Qf8 Nc4 Qh6 Qc6 Bd6 Qc7 Bf8 Nbd6 Bg7 Qf8 Re8 Rcg5 Re5 Qf5 Qh8 Na5 Nc3 Rb8 Qh6 Bf1 Nce2 Nac4 Ng1 Nb7 Kb5 Nbd6+ Ka6 Rb5 N1e2
3RN2K/4qb1B/RbP3pq/2q5/4q1kB/Bn2nrqr/R2Q2p1/N1n1Nr2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Ke6 a4 d5 h4 f5 c4 b5 a5 f3 Kg3 b3 Kf4 b2 c5 g6 a6 f2 e5 b4 c6 g3 a7 d3 h5 d4 h6 b3 h7 d2 Nh3 g2 Rh2 d3 Qh5 d1N Na3 b1Q Qg4 b2 Qg5 d2 Bb5 f1Q+ Nf2 Qbd3 Rh3 b1Q Bb2 Nd7 Rg3 Qe7 Qh5 Ne3 Rg4 d1Q Rg3 Qh1 Rh3 Ngf6 Kg5 f4 Ra2 f3 Qh6 Nc5 Nc2 Qdg1 Na1 Nb3 Ba3 Nc1 Rg3 Qdb3 Nd3 f2 Ne1 f1R Be2 Rb8 a8R Qe4 Ra6 Bd7 Bb5 Be8 Bd3 Bf7 Bc4+ Ned5 Rf3 Qgc5 Rd3 Qc3 Rd1 Rb3 Rdd2 Bg7 Rd1 Rf8 h8B Qch3 Rd4 Rbf3 Bb3 Rb8 Bc4 Rbb3 Rd1 Bf8 Rd3 Nd7+ Bf6 Rc3 Bb3 Nb6 Rdd2 Nc4 Rd1 Nde3 Rd8 Qd7 Be7 Q3h2 Bf6 Bd6 Be7 Bc7 Bf6 Bb6 Be7 Kd5 e6 Rd3 Bf6 Qb8 e7 Ke6+ Be5 Qda7 e8N Qce7+ Bf6 Qhh2 Qh4 Qbg3+ Kh6 Kf5 Kh7 Nd2 Qh6 Kg4 Bh4 Rc3 Bd5 Ndb3 Kh8 Qc5 Bc4 Qae7 Bd5 Nc4 Qd2 Ne3 Bc4 Nc2 Bb2 Qgh3 Ba3 Rfd3 Rd4 Be6 Rd5 Rg3 Rb2 Rcf3 Ra2 Ne3 Rd8 Bg8 Bf7 Qh1 Kg7 Q1h2 Bg5 Qh5 Bh4 Rh3 Raa8 Qhc7 Ra6 Qhg5 Kh8 Qg3 Bd5 Bf7 Nc7 Be8 Bg8 Qh6+ Bh7 Bf7 Ne8
1R1rr3/B1KR1nbq/NnN2nb1/p2B1N2/1Pp5/2k1qR2/r1q3Q1/1q2B2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 Kb4 d4 h5 g4 f5 e4 c5 b3 a5 d5 h3 g5 f3 g6 c3 d6 c2 d7 f4 g7 f2 Nf3 h2 Bg2 f1Q Bb2 c1N Nbd2 h4 Qe1 c4 Ra3 h3 Qe3 Qd1 Qd4 Qb6 d8B Bf5 Nf1 Bg6 Bh4 Qc2 Qg1 Qe3 Bd4 Nf6 g8R Bg7 Kd6 Nbd7 e5 Nd3 e6 Rd8 e7 Nb6+ Kc7 Ne5 e8N Nf7 Ne5 f3 Ng3 f2 Bd5 f1Q Qg2 Qfb1 Rd1 h1Q Nf5 h2 Bc5+ Kc3 b4+ Kb2 Rc3 a3 Be1 a2 Nc6 a1R Rd2 Ra2 Rf8 Nc8 Ba7 Nb6 Rcd3 Rg8 Rf2 Rh8 Rf3 Rg8 Rd2 Kc3 Be6 Qf1 Kb7 Rc8 Nc7 Qh1 Na6 Ra8 Kc7 Rh8 Rb8 Re8 Rb7 Rad8 Rb8 Qg1 Qf1 h1B Qg2 Qh2+ Rd6+ Qd2 Bd5 Qh7 Bg3 Qdd3 Rd7 Qdc2 Be1+
r4Nn1/n1k2bp1/P1q1rb2/KR1r4/2N1Q3/pBN1R1B1/2r2bnR/4B1qq b - - 0 1 illegal: No proof kernel
3B2k1/2Qp1B1b/q6b/rRn2pr1/R5nr/K2N3r/1P1NN2R/1qBbn2q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 c4 a5 Kc2 a3 Kb3 a4+ Ka2 f3 e4 f2 h4 g3 e5 g2 h5 g4 e6 d3 h6 d2 h7 g3 e7 Bh6 c5 Nf6 c6 Qa5 c7 Qa6 Nh3 g1Q Qe2 d1B Qe4 g2 Bc4 f1R Nc3 Bb7 c8N Rf4 Nb5 Rh4 Be3 Ng4 Qc2 Be4 Rh2 Qh1 Bd5 g1R Nb6 Bg6 Nc4 f5 Nf2 Ra7 Bc6 Kf7 e8R Rg3 Nd4 Rgh3 Bb7 Rg8 h8B Bh7 Be5 Rg5 Bc7 Kg7 Re5 Kg8 Rb5 Ra8 Bd8 Ra7 Kb1 a2+ Kc1 a3 Nd2 Ra8 Nd3 Ra7 Ne2 Ra8 Rb1 a1N Qc7 Nc2 Ra1 Ne1 Kb1 Ra7 Ka2 Ra8 Qc2 Ra7 Kb3 a2 Kb4 Ra8 Qc7 Ra7 Rc1 a1Q Rc4 Qb1 Bd5+ Qe6 Re4 Na6+ Ka3 Nc5+ Ra4 Ra5 Bf4 Kf8 Be3 Qa6 Bf7 Kg7 Nf1 Kf8 Bc1 Kg7 Nd2 Kh8 Bg6 Kg8 Bf7+
n1R1NB2/pp4b1/2bN2Kb/1n1P3B/1nR2QB1/3n1n2/rq1bb1R1/2N1kr2 b - - 0 1 illegal: No proof kernel
1R2Kbr1/Qr2n1qk/2B1bN2/1B2r1n1/1R1r1N2/2q2pr1/3prP1R/NbB5 b - - 0 1 legal: proof: d4 e5 h4 exd4 c4 g5 b4 gxh4 b5 a6 Nh3 axb5 Ng1 bxc4 Be3 c3 Bd2 Bg7 Bc1 Bf8 e4 h5 Ke2 c5 Kf3 f5 Kf4 Kf7 Ke5 Kg7 g4 d5 a4 b5 a5 b4 a6 f4 a7 f3 g5 c2 g6 d3 Bg5 c1R Nd2 c4 Ne2 h3 Nb1 b3 Ra6 h2 Nbc3 d2 Ra3 d4 Nf4 d3 Bg2 h4 Qe1 d1R Nfd5 b2 Na4 b1B Nb2 c3 Nf4 h3 Bf1 c2 Na4 Nd7+ Ke6 Qc7 e5 Ne7 Nc5 Rg8 Nb3 Rb8 a8B Rb7 Ra4 Qc3 Na1 Nc5+ Kd6 Ne6 Qe3 Re1 Qd4 Rcd1 Qa7 c1R Rb4 Rc2 Bh6+ Kh8 g7+ Kh7 Be2 Ng5 e6 Rcd2 Bf1 Re5 Be2 Ng6+ e7 Rg1 Bf1 Be6 Be2 Rg3 Bf1 Rb8 Bc6 Rde2 Kc7 Rb6 e8R Ne7 Rb8 Rbb5 Kd8 Rb7 Rg1 h1Q Rg2 h2 Ke8 Ra2 Be2 Qg1 Bf1 h1R Rh2 Rh8 g8N Rae2 Rg2 Rh4 Rh2 Qc2 Nd5 Qc3 Ngf6+ Kg6 Nh5 Rd4 Ndf4+ Kh7 Bb5 Rg8 Bh3 Bea2 Bhd7 Bb3 Bdc6 Be6 Ng2 Ne4 Bc1 d2 Ngf4 Ng5 Qa8 Qg2 Qa7 Qh3 Ng7 Qh6 Ngh5 Qg7 Nf6#
b1r1N3/nqN1R3/q2BbBbR/Nrn4B/p2pb1R1/1Q2b3/1kP1K1b1/6r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 e4 Ke7 g4 Kf6 b4 Ke5 b5 f5 g5 a5 g6 h5 g7 d5 b6 f3 b7 d3 Na3 Kd4 e5 Kc3 e6 d4 e7 f4 e8R d2+ Kf2 h3 Re7 h2 Qe1 h4 Qd1 h3 Rf7 Ne7 g8N Nd7 b8B Nc5 Ba6 Qd7 Rb1 Qb7 Bf1 Nc6 Rf6 Be6 Rf7 Na7 Rb2 Rh5 Ne7 Bh6 Qe2 d1B Nc4 a3 Rg7 a2 Nc8 a1R Ne5 a4 Nd6 Bg5 Bc7 Rc8 Qb5 Be2 Be3 Bd3 Be2 Bg6 Nec4 Rc1 Bd1 Bh6 Kf1 f2 Ne8 Rf5 Ke2 f1B+ Kf2 f3 Bd6 Rb1 Na5 Bg2 Bg5 Re5 Bf6 Be3+ Ke1 f2+ Ke2 B2e4 Nf3 f1B+ Ke1 Qa6 Ng5 Bfg2 Ke2 Rd5 Rg1 h1Q Re7 h2 Rb4 Rf5 Rb2 Ba8 Rb4 Bge4 Rg4 Rf1 Rb2 Rg1 Rb4 Rb3 Qd3+ Kb2 Rb6 Rb5 Qc4 Bd7 Ne6 Bg2 N6c7 Be6 Qd5 B2e4 Qf5 Qg2+ Qf2 h1B Rc6 Qg3 Qf3 Qe5 Qh3 Qd5 Rb6 Qdb7 Qf3 Bf2 Qd3 Be3 Qb3+ Ka1 Rc6 Bhg2 Bg7 Rf1 Rf4 Rg1 Bde5 Bf2 Kd2 Bg8 Bh5 B6h7 Rg4 Be3+ Ke2 Bf7 Rcg6 Be6 Rh6 Bhf5 Bgf6 Bg6 Qb4 Ka2 Bd6 Ka1 Qc4 Kb2 Qb3+
1BR1r1qn/3q1n2/2Nnnb1r/1Qpk1R1b/B2n1pN1/3r2PB/n2R4/2N2K2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 Kc6 d4 f5 e5 h5 e6 b5 a5 h3 g3 h2 e7 h4 e8B+ Qd7 a6 b3 a7 h3 Ne2 c3 Qc2 b2 Ra4 f3 Be3 f2+ Kd1 f4 Qh7 c2+ Kd2 c1N Rc4+ Kd5 Na3 b1R Qc2 c5 Qa2 b4 Qa1 b3 Rb4 b2 Rb5 Bg7 Rb6 Na6 Kd1 Rh6 Rb7 Bf6 Nc2 Ne7 Ng1 Nd3+ Ke2 Rd1 Qb1 Ng6 Ne1 Nde5 Nc2 Nf7 Bd2 Nc7 Ba5 Ne6 Bc7 Ngh8 Bb8 Rd3 Rc7 Ba6 Rc8 Bb5 Qa2+ Bc4 Qb3 b1N Qb5 Bb3 Na1 Ba2 Nf3 Bc4 Bg2 f1N Nb3 Nfd2 Ne5+ Nf3 Rd1 h1Q Nc1 h2 Ng4 Nc3+ Kf2 Bb3 Bh3 Na2 Rd2 Ba4 Ke2 Bd1+ Kf2 Qe1+ Kg2 Qe4 Kf2 h1N+ Kf1 Qc7 Bd7 Qg6 Rf8 Qg8 Bc6+ Kd6 d5 Nf2 Be8 Ne4 Bc6 Nfd4 Be8 Ke7 d6+ Kd8 d7 Ke7 d8N Kd6 Nc6 Kd5 Nf2 Bh5 Ng4 Ned6 Bd7 Nfg5 Be8 Qd7 Rf7 Bg7 Rf5+ Be5 Bc7 Rd8 a8R Ngf7 Rc8 Ke4 Bb8 Bf6 Nce5 Kd5 Qa5 Qe7 Ba4 Qd7 Qb5 Re8 Nc6+
R2b1b1r/1BN2b2/2rrn1p1/6rr/B5RR/n1pQ1P2/5kN1/nbN1q1BK b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 h4 Kf7 d4 Kf6 a4 Kf5 f3 e5 Kf2 c5 Kg2 b5 a5 c3 h5 e3 d5 Kf4 a6 c2 h6 g3 d6 c4 h7 g6 d7 e4 a7 b3 Ra4 b4 Ra5 b2 Qe2 b3 Ra2 Ne7 Rh2 Nec6 Nc3 b1N Nd1 b2 Rh3 Na5 Rh6 Na3 Kh1 b1B Qe1 g2+ Kh2 Nb3 Rh3 Qe8 d8R Na1 Be2 Nc6 Rh5 Be6 Qf1 Bf7 Rd4 Rd8 a8B Rd6 Bb7 Nd8 Bd2 c3 Bb5 c1R Qd3 Ne6 Ba4 Rc2 Be1 e2 Ne3 Rd2 Bh4 e1B Bf2 Rc6 Rh4+ Ke5 Ne2 g1R Nc1 Rg5 Ng2 e3 Rc4 e2 Bg1 Bf2 Rcg4 e1R Kh1 Bb6 Rg3 Bd8 Rgg4 Re4 Bh2+ Rf4 Qf1 Rdd6 Qa6 Rg8 h8N Kd5 Qe2 Rff5 Qd3+ Kc5 Rb2 Qe7 Rb6 Rh5 Ra6 Rfg5 Ra8 Be8 Nf7 Rgh8 Nh6 Bf7 Nf5 Qe8 Nfe3 Qe7 Qe2 Qe8 Nd5 Qe7 Ngf4 Kd4 Nc7 Qe8 Qf1 Ke3 Qd3+ Kf2 Ng2 Nd4 Ne1 Qe4 Ng2 Ne6 Ra5 Qe3 Ra8 Qe1+ Bg1+
7r/2N2KR1/2N2p2/P1nrQB2/1R3b1q/3pRn2/1rkB2N1/nbnBbn1r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 g5 a4 d5 h5 b5 c5 d3 h6 Kd4 e5 g3+ Kf3 b3 a5 b2 h7 d2 e6 g4+ Kg2 b4 c6 b3 c7 Nh6 e7 Nd7 e8R Qh4 Ra4+ Bb4 Re6 f6 Re7 Nf5 Bb5 f3+ Kf1 f2 Ke2 f1N Re8 g2 Na3 Kc3 Re5 b1R Bc4 d4 Rh2 g3 Kf3 b2 Rh1 Rb8 Nh3 g1B Nf4 g2 Ke4 Nc5+ Kd5 Bh2 Qe1 g1N Be2 Nf3 Ng2 Bf4 Rg1 N5g3 Nb5+ Kc2 Re3 d1R Bd2 Bf5 c8B Rbc1 Be6 b1N Nc7 Na3 Bd7 Bd3 Bf5 Bc3 Rc4 Rb2 Rb4 Rcb1 Re5 Ra1 Kd6 Rab1 Ke7 Rbc1 Kf7 Be4 Bb5 Ne2 Qg3 Ra1 Qg5 Nc1 Be2 Bh2 Qe3 Bf4 Re8 Bd3 Qe5 Rab1 Be3 Be1 Bd2 Rg8 h8N Be4 Ng6 Rh8 Rb7 N1b3 Ne6 Ng3 Bb5 Nc4 Reb8 Kd3 Nc7 Ne2 Bc1 Bc3 Ne7 Na1 Ne3 Bb4 Ba6 Kc3 Rg7 Ncd2 Bd3 Rh1 Bc4 Nf1 Nc6 Rd2 Rd8 Rbb2 Ng2 Bb1 Bcd3 Rd1 Be3 Nc1 Be2 Rd3 Rd5 Kc2 Rd6 Bc3 Rb4 Be1 Bd2 Bh2 Qe7 Bhg3 Re6 Bf4 Re4 Re3 Re5+ d3 Qd6 Re4 Qd5 Rc4 Re3 Rd4 Qe5 Rd5 Bd1+
3QBBK1/p1Br1n2/br2q1bP/1q5R/4r2k/N1bbn1RN/3R3p/2b1bN2 b - - 0 1 illegal: No proof kernel
2N2b2/1k3R1q/n5nq/b1Rr2N1/QP3p2/NB3R1b/2rpr2B/KbBr2n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 b4 d5 e4 Kd7 c4 Kc7 Kc2 a5 Kb2 f5 h4 a3+ Ka2 d3 e5 a4 h5 g3 e6 f3 h6 f2 e7 d4 e8N+ Kb7 c5 f4 h7 d2 Bb5 f1B Rh6 g2 Nc7 g4 Nf3 g1N Ne5 d3 Rc6 g3 Ne6 g2 Nc7 Bh3 Qe2 d1R Nd2 Qf6 Bc4 Na6 Nf7 Rd8 Nd5 Ne7 Bb3 Ng6 Nc4 d2 Ne7 Rd5 Nc8 Rg8 Qf3 Bd3 h8B Qh4 Re6 Qh7 Ng5 Rg7 Rc6 Re7 Bd4 Re2 Rf6 Bdf5 Rb1 Qh6 Rb2 Bb1+ Ka1 a2 Na3 Qh7 Rc2 Qh6 Rc3 Qh7 Kb2 a1R Qf2 Qh6 Rf3 Qh7 Qe3 Qh6 Qe8 Ra2+ Kc3 Qh7 Bf2 Rb2 Bg3 Qh6 Bh2 Ra2 Nc2 a3 Qa4 Rb2 Rf5 a2 Na3 a1Q c6+ Kb8 c7+ Kb7 Bc4 Rc2+ Kb3 Qah8 Rf7 Rc3+ Kb2 Q8h7 Ka1 Rc2 Rd3 Nf3 Rc3 g1B Bb3 Bb6 Re3 Ng1 Rf3 Rd7 Na7 Ba5 c8R Rg2 Rc5 Re2 Rf6 Rd6 Nc8 Rd5 Rf7+
b2qq3/K1BrQB2/1n1bNR1R/4r2p/1P1N3p/N1q1r3/3kbnR1/1q1Bb3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 b4 f5 c4 d5 g4 a5 e3 h5 c5 f3 g5 f4 c6 a3 g6 f2 c7 f3 Kb6 a2 g7 a4 Bb2 a3 Bc3 d3 Nh3 d4 Ng1 d2 Qe1 d1B Rh3 d3 Bb2 d2 Bd4 Be2 Rg3 Kd3 e4 d1R e5 Bd6 e6 Nf6 g8N Nbd7+ Kb5 Nb6 e7 Ne4 e8B Bb7 c8R Rh7 Rc7 Re7 Nf6 Re5+ Nd5 Rc8 Bh3 f1Q Bg4 Nf2 Rh7 Ba8 Ka6 Rc3 Nc7 Kc2+ Ka7 Rce3 Bf7 Qh3 Bd7 Qe6 Rg2 Qee8 Bg4 Kd3 Ne6 Rd2 Nc3 Rd1 Rb1 a1B Nb5 a2 Rh6 Bc3 Na3 a1Q Rc1 Bd2 Rc6 Qc3 Rf6 Nh3 Rh6 f2 Nf3 f1Q Bc5 Nf2 Nfd4 Nd7 Bb6 Qg1 Bc7 Nb6 Qf1 Be1 Rf6 Kd2 Rh6 Nh3 Qf6 Qf1 Qe7 Qf5 Bf3 Qb1 Bd5 Nf2 Bb3 Kc1 Rf6 Rdd3 Bd1 Kd2 Ndc2 Bc5 Rh6 Rd7 Ncd4 Bd6 Rc5 R5e4 Rf5 Re5 Rff6
Bq1N3n/6N1/2rB4/bkr1Rq1p/P1qQrB2/2b4q/Nr2n1p1/Kb4RR b - - 0 1 illegal: No possible last move, all moves rejected
4nnq1/1B1r1NB1/1QP4N/q2p2B1/3nR1b1/n1Nb2p1/3Rbr1R/krb3K1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 h4 b5 c4 g5 e5 f5 e6 d5 a5 d3 h5 Kd4 a6 g3+ Kg2 f3+ Kh3 d2 h6 b3 c5 f2 Kg2 b4 a7 f4 h7 g4 c6 b2 e7 b3 e8R Ba3 Re6 Qa5 Rh4 f3+ Kh1 g2+ Kh2 Nf6 Re1 Rd8 h8B Rd7 Rh7 g3+ Kh3 Ba6 Re2 Bd3 Re5 Ne8 Nc3 b1R Rg7 b2 Qb3 d1B Qb6+ Kc4 Be2 f1Q Ra2 f2 Rh7 Qe1 Re6 f1B Nf3 Qd2 Re5 Qg5 Nh2 Qg8 Bg4 Bfe2 Bg5 g1N+ Kg2 Nf3 Bg7 Nd4 Re4 Bb3 Bh3 Bbd1 Kg1 Bg4 Rh5 B1e2+ Bf1 Rd1 Rh8 b1N Rd2 Bc1 Rh5 Na3 Rh8 Bh5 Ng4 Re1 Nh6 Bhg4 Nb5 Kb3 Nd6+ Kc3 Ndf7 Rd1 Ra2 Rd2 Rh7 Rb2 Rh8 Rb1 Rd2 Rd8 Rh7 Nd7 Bh3 Rab8 a8N Nf8 Nc7 Rd7 Nb5+ Kb3 Rh8 Rb2 Rh7 Ka2 Nc3+ Ka1 Rh8 Bgf3 Be6 Bg4 Bf5 Rdd8 Bc8 Rd7 Ba6 Rb1 Bb7 Rbd8 Ne5 Rf7 Rh7 Rf2 Nef7 Rd7 Nf5 Nf6 Rh2 Ne8 N5h6
K4Q1B/nN1R1bR1/2p1nqq1/2PB1qR1/1r5r/pbb2r2/N2Bq1k1/1r5N b - - 0 1 legal: proof: f4 g5 e4 b5 a4 bxa4 h4 gxh4 e5 d6 Qe2 dxe5 Qh5 exf4 Qd1 f3 Kf2 Kd7 Ke3 Kc6 Ke4 e5 c4 f5+ Ke3 a5 d4 h5 b4 a3 g4 h3 g5 h4 g6 a4 g7 a2 c5 Kd5 b5 f4+ Kd3 e4+ Kc3 c6 Kb4 h2 b6 e3 b7 Ke4 d5 a3 d6 h3 d7 e2 Qa4 e1Q+ Kc4 f2 Qb4 f3 Qb6 Na6 b8B Nc7 Qb3 Qe8 d8N Qg6 Nb7 Ne7 g8R Rh4 Bf4 Qe2+ Kb4 Be6 Rg7 Ra4+ Kc3 Bf7 Bd2 Nc8 Bg2 f1R Qb5 Ne6 Be5 Rb4 Qa5 Rf2 Qd8 Na7 Qa8 Be7 Qf8 Bf6 Bd4 Kf5 Be5 Kg4 Bd4 Rf1 Be5 f2 Bd5 Re4 Bd4 Kg3 Kb4 Kg2 Nc3 Be5 Rc1 a1Q Ka5 Qb2 Na2 Qc2 Bb2 Bc3+ Kb6 Qb1 Bc4 Ref4 Ka6 Qf5 Rd1 Rf3 Kb6 Re1 Bd5 f1Q Nd6 Qf6 Kb7 Rb4+ Ka8 Qf5 Nb7 Qff2 Bf4 Qh4 Rd4 Rb1 Bd2 Qhf6 Rd3 Qd1 Ne2 Qf1 Ng3 Qe2 Re1 h1R Rd4 h2 Rc1 Re1 Rg4 h1B Rg5 Rh4 Ba1 Rbb4 Rc2 Reb1 Rc1 Kf2 Re1 Bg2 Rd1 Bf1 Bb2 Kg2 Ba1 Qee4 Bb2 Bc4 Nh1+ Qeg4 Re1 Bb3 Re4 Nd4 Re7 Ne6 Rd7 Qe7 Bbc1 Ba1 Qb8 Qg3 Bb2 Qd8 Bf6 Bc3 Rh7 Qh8 Qc8 Qd8 Bh8 Qdf6 Rgh5 Q3g5 Rg7 Qe3 Qf8 Qe2 Rg5+
2r3RK/2q1b1rp/BB1N4/2kq2N1/4rqNQ/4q1n1/1p3PRn/1b1n1RBr b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 b5 Kg5 e5+ Kh5 e3 d4 e4 g4 b3 a4 b2 g5 h3 d5+ Kc5 g6 b4 g7 h2 d6 b3 a5 c3 a6 c2 d7 e2 a7 e1R Qe2 e3 Nf3 Ne7 Kh6 Nbc6 Nh4 Nf5+ Kh5 Ng3+ Kh6 Ne5 Qd3 e2 Nf3 Rg8 Ng5 Be7 Rg1 h1R+ Nh3 Nf3 Na3 b1N Rg2 b2 Nb5 Nc3 Nd6 Nd1 Bf4 c1Q Qe4 Nh2 Ng5 c6 Be5 Qf4 Rb1 Qc7 d8B Bf5 Qa4 Qd7 Ba5 Rac8 a8R Qd8 Ra1 Bb1 Qe4 Qc7 Qa4 Qf7 Qh4 Qd5 Bf4 Kd4 Rb8 c5 Ra8 c4 Rb8 Rge8 g8N c3 Kg7 c2 Nf6 c1Q Ng4 Kc5 Be5 Qf4 Ra8 Bf8+ Kh8 Re7 Rb8 Rg7 Ra8 Nc3 Rb8 Rc1 Ra8 e1Q Ba6 Qee3 Rb8 Re8 Ra8 Re6 Rd8 Be7 Rg8 Bf5 Rb1 Rc2 Rf1 Nd1 Nb5 Rc4 Nd6 Bb1 Rd8 Re4 Nf5 Qcd6 Rd7 Ne2 Nf6 Ng4 Rd8 Qff3 Bg3 Qff4 Bh2 Ng3 Bg1 Nh2 Rg8 Qd8 Ng4 Rc6 Nd6 Rc8 Re8 Qd7 Rg8 Qc7 Bb6+
2QN1B2/1R3PR1/4pb1r/2b1nb2/nBrp2nN/bR1nk1K1/2q5/qN3B1r b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 Kg6 f4 Kf5 Kf2 g5 c4 d5 c5 b5 h5 d3 h6 d2 a5 g3+ Kg2 b3 h7 e3 a6 Ke4 f5 g4 f6 b2 f7 b4 a7 b3 c6 e2 c7 Nf6 Qe1 d1Q Bh6 Qc2 Nf3 Nbd7 Ng5+ Ke3 Qa5 e1N+ Kg1 g2 Kh2 g1B+ Kg3 Nd3 Ra4 N7e5 Qc3 Bf5 c8R e6 Ra3 Qa5 Rc4 Rc8 Rca4 Rc4 a8N Qa7 Nc7 Bf2+ Kg2 g3 Na6 Nfg4 Nb8 Qa6 Kh3 g2 Rb4 g1B Nc6 Bh4 Nf3+ Bg5 Bg7 Bf6 Nd8 Bc5 Rb6 d4 Nh4 Bh2 Bf8 Qa7 Rb7 Qa4 Nd2 b1R Rg1 b2 Rab3 Qa1 Rg2 Ba3 Bb4 Rd1 Rg1 b1N Rg2 Bf4 Rg1 Bh6 Kg3 Bf8 Rg2 Bc5 Rg1 Rg8 h8B Rg6 Bg7 Rh6 Bf8 Re1 Qb2 Nc3 Nb1 Na4 Qa2 Qcc3 Qg2 Qc2 Qc6 Re2 Qc8 Rh2 Rg2 Rh1 Rf2 Bg6 Rf5 Bh7 Rg5 Bf5 Rg7
1B5b/p1RnR1Pq/2qb3k/3N1q1B/Brb1Rn2/qbKN1r2/2p5/2N1Q2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 f5 d4 Kf7 Kd2 Kg6 b4 h5 e4 c5 d5 a3 b5 a2 b6 f3 b7 h3 g5 h2 d6 f2 d7 h4 e5 f4 e6 h3 e7 f3 Bb2 c3+ Kc2 c4 Qd2 Qa5 d8N Rh4 Qe2 Be6 Na3 Nf6 Bg2 f1Q Qe3 f2 Bc6 Nh5 Re1 a1B Nb5 Qa3 Nf7 Nd7 b8R Nf4 e8B Bd6 Ne2 Bd5 Rg1 h1N Nc1 h2 Nc7 Rh3 Rd8 Rb8 Ba4 Rb4 Rc8 Rf3 Ne5+ Kh7 g6+ Kh6 Qd2 Qh3 Re4 f1B Qf2 Qf5 Qe1 Be6 Nd5 Bd3+ Kd1 c2+ Kd2 Be2 Bd4 Bf1 Bc5 Bd4 Ned3 Bh8 g7 Bg8 Qe3 Be2 Rc7 c3+ Ke1 Bd1 Bh5 Bf7 Re7 Bg8 Rg4 Bf7 Na2 c1Q Bb6 Qb1 Nac1 Bb3 Qe5 c2 Kd2 Qba1 Qe1 Qaf6 Bg1 Q6g6 Kc3 Qh7 Nb6 Bfc4 Nd5 Ng3 Bd4 h1Q Be5 Qg2 Rh4 Nh1 Rg4 Qf2 Rh4 Qc5 Rg4 Qc6 Rh4 Ng6 Re4 Nf4 Rb7 Bc5 Bb8 Bd6 Rc7
N1bb3b/1B1bQ2K/k2n2p1/2bn3B/pRNN2rb/1P1R3n/4q2B/2R3nr b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 e5 f4 a5 c4 d5 h4 Kd7 h5 Kc6 b3 Kb6 h6 e3 Kd3 g3 c5+ Ka6 c6 g2 h7 g6 c7 e2 f5 e1B f6 a3 f7 a2 Rh3 e4+ Kc2+ d3+ Kb2 e3 Bd2 d4 Rh1 e2 Na3 Qe8 Nc4 Bh4 Qe1 Bd8 Bf4 d2 Bh2 d1B Rc1 d3 Kc3 d2 Kd4 Ne7 Ke5 Nbc6+ Kf6 Na7 Nf3 a1B+ Nd4 g1N Bg2 Nb5 Bc6 Nd6 Rc3 a4 Rd3 Rb8 Kg5 Bd7 c8B+ Rb7 Qh4 e1B Qe4 Nd5+ Qe7 Nf4 Kf6 B1g4 Kg5 d1N Kf6 Rg8 h8R Ne3 Rh4 Ned5+ Kg5 Rg7 Kh6 Bgf5 Rg4 Nfh3 Rf4 Rg8+ Kh7 Bh4 Rg4 Ne2 Rc1 Neg1 Qe2 Bfe7 f8N Bc3 Nfe6 Rh8+ Kg7 Rh5 Qe5 Rg5 Kh7 Bf8 Rf4 Rg4 Qg7 Ba1 Qe7 Bb2 Nf3 Bh8 Nc7+ Ka7 Na8 Ka6 Qf6 Qe2 Qe7 Be8 Be6 Bd7 Nd4 Bc8 Bf7 Bfd7 Be6 Bh6 Re4 Bd2 Rf4 Bb4 Bf5 Ba3 Be4 Bc5 Bf3 Rg2 Bh5 Rg4 Re4 Rb4 Nb2 Rc4 Rf4 Rc2 Nc4 Rd2 Re4 Rd1 Nb2 Be1 Nb5 Nf3 Rb4 Bh4 Nc4 Rh1 Nd4 Nfg1 Bb7+
1B6/nn6/2N1PR1n/1b1rp2k/q1n1n1RR/NQ1np1n1/1b2Br2/Bn1K2N1 b - - 0 1 illegal: No possible last move
2n3bN/2bRP3/1nBk4/bn1nnrq1/6pR/R3Qp2/K4pr1/1rN1BNB1 b - - 0 1 illegal: No possible last move
KRn5/1r6/b1b1BpN1/8/1RqBpb2/Qb2RnPq/np2N2k/br3N1B b - - 0 1 illegal: No proof kernel
1BKn4/1n2qN1r/R2p2rr/PRn4N/N1kp1q2/b4bp1/5Q2/nBR1B1n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Ke6 e4 b5 h4 f5 a4 g5 e5 g3+ Kf3 g4+ Ke2 g2 Kd3 b3 c5 Kd5 c6 g3 e6 b2 e7 b4 e8N b3 a5 f3 h5 f4 h6 f2 h7 f3 c7 Ra7 Nd6 Na6 Be2 f1R Na3 b1N Nab5 b2 Rh4 f2 Nf7 Nc3 Rb1 Qe7 Nh3 g1N Qd2 Bb7 c8R Ne4 Rh6 Nd6 Qe3 Ba8 Bd2 Nb7 Rcc1 Re1 Bc3 f1Q Nf4+ Kc5 Re6 Nh6 Nh5 Qf4 Qf2 Rg8 h8B Rg6 Rf6 Kd5 Bd1 Re6 Be1 Rb6 Re6 Rc6 Be5 Nac5+ Kc2 Rb6 Nc3+ Kc4 Bb8 Rd6 Na4 Rc6 Ra1 b1N Rf6 Nd2 Rab1 Rca6 Rb5 Ndb3 Bg4 Rd6 Bf5 Na1+ Kb2+ Kd5 Bc2 Kc4 Ka3 Re6 Nd8 Nf7 Bb1+ Kd5 Kb4 Rea6 Nc6 Nfd8 Ne5 Rh6 Rf7 Rag6 Rf6 Ra6 Nf7 Re6 Rb6 Rh7 Kb5 Rd6 Rc6 Re6 Kb6 Rd6 Kc7 Rgh6 Rd1 Kc4 Rf5 Rdg6+ Re5 Nd6 Rb6 Bf3 Ra6 N6b7 Kc8 Nce6 Rd6 Qe8 Rdd5 Ba3 Rb5 Nec5 Re6 Qe7 Ra6 d6 Rc1+
q1q2Nkb/rQqB1p1q/1p6/4R3/RN3BB1/1qbpKPN1/2b1n2n/3R3r b - - 0 1 legal: proof: d4 e5 h4 exd4 c4 g5 b4 gxh4 b5 a6 Nh3 axb5 Ng1 bxc4 Be3 c3 Bd2 Bg7 Bc1 Bf8 a4 c5 e4 d5 Ke2 h5 g4 c4 g5 h3 g6 h4 g7 h2 a5 c2 e5 h3 a6 d3+ Ke3 d2 a7 c3 e6 d4+ Ke2 b6 e7 Qc7 Qe1 Nh6 g8N Ng4 Kd3 d1Q+ Qd2 Nc6 Ra4 Bf5+ Kc4 Bg7 Qg5 Bh7 Be3 c1Q Bf4 Bc2 Be2 d3 Na3 Nd4+ Qc5 Qc8 Qc7 Rh7 Bf3 Bh8 Ne2 Rh4 Rf1 h1Q Ng3 Nh2 Bg4 Ne2 Rg1 Qhb7 f3 Qbb8 Kd5 Qa1 Qb7 Qbc7 Ke4 Qdb1 Re1 Qb3 Rc1 Bd1 Nh6 Nf1 Ng8 c2 Ra5 h2 Rd5 h1Q Re5 Qh2 Rb1 c1B Nc2 Bb2 Nb4 Bc2 Re1 Bc3 Rd1 Rb8 a8R Qaa3 Ra4 Ra8 Raa5 Rh7 Ra7 Qh6 Raa5 Qg7 Ra7 Rh1 Ra6 Nh2 Ke3 Qh7 Ra7 Qbc4 Raa5 Qa6 Ra4 Qb3 Rf5 Kd7 e8B+ Ke6 Nf6 Ke7 Rc5 Kf8 Nd7+ Kg8 Nf8 Qa7 Rca5 Qab8 Rb5 Ra7 Re5 Qa8 Bed7
1B1N2b1/Rp3bbR/2bKp2n/B1p5/kqRb3N/1P2qrn1/6N1/1Q1Bq1r1 b - - 0 1 illegal: No possible last move
7q/2bbNK2/4PQ1R/1R3NpB/q1rR1rq1/q2BBknn/b3rp1p/N7 b - - 0 1 illegal: No proof kernel
1K2nb2/2B1kQ2/4p1r1/3bppP1/2bN1qB1/1R2Rq2/1N1q2r1/1n1RnBnN b - - 0 1 illegal: No proof kernel
q2n4/kr5b/1b2p3/1p1br3/N1B2N1K/2pBRbRn/3rb1Pb/NQ2R1B1 b - - 0 1 illegal: No proof kernel
1B2R3/1BR3bb/4nbk1/Bq1rrp1R/Np1pPr2/Nn2rb2/r1N4K/1Q6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 Kg2 b5 a4 g5 c4 b3 h4 d3 h5 b4 e3 g3 c5 d2 c6 b2 c7 g4 h6 Nd7 a5 Qg5 a6 Nc5 h7 Ne7 a7 Bg7 Rh2 f3+ Kh1 f2 Ra4 Nc6 Bb5 f1R Nc3 b1B Be2 Rf4 Bb5 Bb7 c8N Ne6 Bf1 Ncd4 Rh5 g2+ Kh2 Nb3 Nf3 g1R Nb6 Rg3 Nd4 f6 Ra3 Kf7 Nc4 Kg6 Bg2 Rhe8 h8B Qf5 Qc2 d1R Na4 Rgf3 Qa2 Qg5 Nc2 g3+ Kh3 Bc6 Bb2 Rd3 Be5 Rd2 Bh1 g2+ Kh2 Rad8 a8R d4 Rh4 Rd5 Bc7 Re2 Ba5 Rff2 Kh3 g1B Rh5 Bh2 Bf3 Re7 Re8 Bg3 Bg2 Bh4 Kh2 Qe5 Qb2 Qb8 Ra2 Qb5 N4a3 Bb7 Na1 Be4 N1c2 Bf3 Qa1 f5 Rb2 Bhf6 Rb1 Re1 Rc1 Ba8 Qb1 Rd2 Na1 Ra2 Rc7 Bb7 N1c2 Bc6 Ra8 Be8 Rd8 Bf7 Re8 Bg8 Bh1 Bh7 Bg2 Re5 Bh1 Rd7 Bg2 Be2 Bb7 Bf3 e4 Rdd5 Kh3 Bf8 Kh2 Bh6 Bg7 Re3 Bf8 Bhg7 Bc5 Bg8 Ba7 Bh7 Bb8
k1nR4/1rprp1Rp/1BnRP3/Nb1KBB2/3b1b2/5r2/2N1Q1qn/r3n2N b - - 0 1 legal: proof: g4 d5 h4 a5 c4 dxc4 b4 axb4 g5 f6 Qc2 fxg5 Qb3 gxh4 Qd1 h3 f4 Kd7 Kf2 Kc6 Ke3 g5 Ke4 b5 a4 Kb7 d4 b3 e3 h2 a5 g4 d5 b2 d6 g3 d7 g2 f5 b4 f6 c3 f7 b3 Ke5 c2 e4 Nf6 Ne2 g1B Nbc3 b1N Be3 c1N Bc5 b2 Na2 Ne8 Bh3 Nd2 Bf5 b1R Bb6 Bh6 f8B Nf1 Kd5 Bf4 e5 Nc6 e6 Nd6 Nb4 Nd3 Bg7 Rf8 Be5 Ne1 Nc2 Bd4 Rg1 h1R Ng3 Nh2 Qe2 Rf7 Ra2 Qg8 d8R Bd7 Ra3 Rf8 Rd3 Nc8 a6+ Kb8 a7+ Kb7 Ne4 Qg2 Rd1 Rb8 a8N Rb3 Rd2 Rf3 Nf2 Be8 Rd6 Bd7 Rd1 Rd8 Rd3 Be8 Rd2 Rd7 Rd1 Qh3 Rg7 Qg2 Rd3 Rf1 Nh1 Rg1 Ba7 Rgf1 Nb6 Rg1 Nc4 Ka8 Bb6 Rb7 N2e3 Nc2 Na5 Ra1 Rd1 Ne1 Nc2 Bg6 Bg4 Bd3 Bf5 Bb5 Rg8 Nd3 Rg1 Ne1 Rd8 Qh3 Rg6 Qg2 Rg7
1RNr1qbn/R3bRNq/r3q2p/k2N2n1/1bP4K/B5Bp/1pB3b1/q6Q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 e5 Kf2 d5 g4 Kd7 c4 Kc7 a4 Kb6 f5 d3 f6 e3+ Kf3 e4+ Kf4 e2 Kg5 e1B Nd2 b3 Bh3 e3 Ra2 h6+ Kh5 b2 g5 b1Q g6 e2 f7 d4 g7 Be6 Bb2 Ra6 Ra3 Ka5 Qc1 b5 Bg4 h3 Rb3 b4 Bf5 Nc6 Nf1 d2 Bc2 d1Q Nf3 d3 Ng5 d2 Be5 Nge7 g8N Nd4 Ne3 Nf3 Bg3 Ng6 Rf1 Be7 Nd5 Qf8 Ra3 b3 Ra2 Qd8 f8B b2 Ra3 Bf7 Ne6 Ng5 Ng7 Be6 Rf7 Qa1 Bb1 Qc2 Qd1 Qf5 Bc2 Qd6 Qb1 d1B Rb3 Qdf4 Rb8 B1b4 Qc1 Rh7 Qb1 Nh8 Qc1 Qc7 Kh4 e1Q Qb1 Qef2 Qc1 Bf3 Qh1 Bec5 Nge7 Bg2 Nc8 Be7 Rf6 Bg8 Rf7 Bd8 Bc5 Qe6 Bf8 Bd2 Ba3 Bb4 Rd7 Qf8 Rf7 Rc6 Qe1 Be7 Qh1 Ka6 a5 Rd6 Rf2 Rd8 Rf7 Qce5 Rf4 Bf6 Ne8 Ra7 Ng7 Bfe7 Rf7 Q5f5 Ra8 Kb7 a6+ Kc6 Rb8 Qh7 Rb7 Ra8 a7 Kc5 Rb5+ Kc6 Ra5 Kb7 Rb5+ Ka6 Rb8 Ka5 Rb7 Rb8 Rd7 Rb7 a8R+ Ra7 Rb8 Ra6 Ra7
1B1qq3/2rb2pN/k1brNp2/1RB2KR1/rbp1RN2/3P1r2/1n1nB2b/5Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 h4 Kc6 e4 Kb7 b4 a5 h5 c5 e5 g3+ Kf3 a3 Ke4 f3 d3 a2 h6 a4 h7 f2 b5 g2 e6 c3 e7 c2 e8R a3 b6 Nc6 Qe2 Ra6 Re6 Nf6+ Kf5 Ne4 Nf3 g1B Qe1 f6 Rh3 Bh2 Ng5 Bd7 Nf7 Nd2 Bb2 c1R Be2 f1B Bd4 Na5 Nc3 Bg2 Ng5 Nac4 Nce4 Nb2 Rb1 a1R Qf1 a2 Rg3 c4 Bg1 Bb4 Bc5 Re8 h8N Re7 Ng6 Rf7 Qf3 Rf1 Nf4 Bh1 Qg2 Rf3 Qf1 Ra4 Nh7 Ka6 Neg5 Re7 Rc1 Rb1 Rc3 a1Q Rb3 Re1 Rg2 Qc1 Rg4 Qc3 Rg3 Qd4 Rg1 Qe8 b7+ Qd6 b8B Rf7 Kg6 Qb6 Re5 Qbd8 Nge6 Re7+ Kf5 Rf7 Bd1 Re4 Rg3 Rd4 Rg5 Rd6 Re1 Re3 Bg4 Bhc6 Re2 Rf3 Re4 Bc8 Bh5 Rc7 Bg4 B8d7 Bh5 Ba3 Rb5 Bb4 Bg4 Rg3 Bd1 Rf3 Be2
3k2N1/1K1P1R2/6pp/4Brpq/BBNrRQ1r/1b1nb1p1/2rRnn2/1r1N4 b - - 0 1 illegal: No proof kernel
Q1B1Bb2/3rq2r/2p3bB/K4nn1/1R1pp2b/1P2NRNk/1R1rpb2/3N2n1 b - - 0 1 illegal: No proof kernel
2n1r1rn/1pb1N2Q/3R1B2/1KR4P/1b2Np1R/r1p1kp1n/1B1qN1Bn/5b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Kf6 Kd2 Kf5 h4 Ke4 e3 c5 d5 g5 h5 f5 a5 c3+ Kc2 g3 Kb3 c2 Ka4 b3 a6 g2 d6 f3 a7 g4 d7 c4 Rh2 c3 Kb5 b2 Qe2 g3 Rh3 Nh6 Ka4 Nc6 Rh2 Ne7 Kb5 Nf7 Rh4+ f4 Qd1 Rg8 Ra6 Nh8 Ne2 g1N Bg2 Nh3 Nd2+ Kd3 e4 b1N e5 Ke3 Ba3 c1R Ne4 Nd2 e6 Ra1 Qb1 Nf1 Rd6 Nh2 Bb2 Rb8 a8R Ra3 Ra5 Ra8 Bf1 g2 Qc2 g1B Bg2 Qc7 d8B Qd7+ Rc6 Qd2 Rd6 Nd5 e7 Nb6 e8N Bf5 Bc1 Nc8 Ng7 Be6 Bf6 Bc4+ Kc5 Be7 Bb2 Bd8 Kb4 Bc7 Rc5 Bf2 Ng1 Bf1 Ne2 Nb6 Kb5 Rae8 Ng3 Bg1 Qh7 Nc8 N7f5+ Kf2 Ne7 Ke3 Rg4 Bf2 Ne4 Bh4 Bg7 Bf6 Rh4 Bd4 Rcd5 Bc5 Bf6 Bb4 Rc5
6nR/p2r2N1/R4b2/np1pBq2/1np1P1BN/1bnr2rQ/2BbR2N/K4k2 b - - 0 1 illegal: No possible last move
1NN3b1/q1n2B1p/knQB1R2/q1rp2R1/p1P1p3/1N1r2R1/1bb2bK1/1q2B3 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 d5 Kf2 Kd7 b4 Kc7 c4 Kb7 g4 a5 f5 e5 g5 d3 b5 d2 f6 h3 g6 h2 b6 e3+ Kg2 e2 f7 e1B g7 a3 Nc3 e4 Nb1 a2 Ne2 Ba3 f8B Ne7 g8R Bf2 Nbc3 Bb2 Rg5 Na6 Nd4 Be6 Na4 Bg8 Nb3 Nc7 Be2 Nc8 Rf1 Ka6 b7 Nb6 Bh5 Ra7 Qf3 d1B Bd2 Bc2 Bf7 Qa8 Rad1 a1Q Qf6 Qd8 Rg1 Qb8 Be1 h1Q+ Kf1 Ra8 Qc6 Qa7 Bd6 Qb1 Rc1 Qh3+ R1g2 Qc3 R2g3 Qb4 Kg2 Rf8 Nc3 a4 Nb5 Qa5 Rd1 Rb8 Rdd3 Rc8 Rdf3 Rf8 Be6 Rf4 Bf7 Rh4 Rf6 Rh3 R3g4 Rd3 Rg3 Qb8 Na7 Qa8 Nc8 Qa7 Bg6 Bf7 Ne7 Rc8 Bh5 Bg8 Bf7 Rf8 Nc8 Rd8 Ne7 Rc8 Qd7 Nca8 Qe8 Rc5 Nc8 Nc7 b8N+ Kb7 Qb5 Qd2 Nd7 Qda5 Qc6+ Ka6 Nb8+
R2rR2q/N3Nkp1/2bBR1B1/2b1q1Pp/ppB1r1q1/b1q3Q1/1N6/K3nn2 b - - 0 1 illegal: No proof kernel
3r4/1r1QK1B1/1r1p4/Rnrp2NN/2RPR1nB/p1B2n1q/1pkb2n1/1b3N2 b - - 0 1 illegal: No proof kernel
RN2Q3/q2B1bqR/4p1p1/2r4N/p1nRbKN1/rBppB2P/3n3r/b3k3 b - - 0 1 illegal: No proof kernel
1Q2rBn1/n1N2PRB/2rk3q/1br1b1q1/1Q4RQ/3b4/2r2N1q/3KBb2 b - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 a4 gxh4 g5 c5 g6 b5 axb5 c4 Qd3 cxd3 Rh3 fxg6 Rh2 g5 Rh1 g4 b4 Ke7 c4 h5 e4 d5 f4 a5 e5 a4 b6 d2+ Kd1 h3 b7 h4 b5 g3 f5 h2 b6 h3 c5 g2 e6 a3 c6 a2 f6+ Kd6 f7 Rh6 c7 Nc6 b8Q Bg7 e7 Ba6 b7 Bb5 Bc4 Na7 Kc2 d1B+ Kd2 d3 Bb3 d4 Bd5 Bc2 Nf3 g1Q Nc3 Qg5+ Ke1 d2+ Kf2 d1B Ke1 d3 Rg1 h1Q Nh2 Qf8 Bd2 Be2 Ng4 h2 Nf2 Be5 Be4 Bf1 Rg4 Qg2 Nd5 h1Q Rc1 a1R Bh7 Ra5 Bc3 Bb1 Kd1 Qgh2 Be1 d2 Rc3 Rg6 Rcg3 Bb1d3 Rg2 Ra2 Rg1 Rc2 c8Q+ Rc7 R1g2 Qhh6 Qf5 Q1h2 Qf4 Re6 Qg3 Rf6 Qh4 Re6 Qc8 Rc2 Qc4 Re8 b8Q+ Kd7 Ne4 Qgg6 Rg5 Rc3 Nf2 Rc6 Qb4 R3c5 Nc7 Kd6 R2g4 Qf6 Rg7 Qfg5 Rc4 Bde2+ Kc2 d1R Rc3 Bec4 Rg3 Rd2+ Kc1 Re2+ Kd1 Bd3 Rg4 Rc2 exf8B+
7Q/BP1n4/1n1qq1R1/n5q1/rq1Nbr1R/n3K3/BR5B/2krbNQ1 b - - 0 1 legal: proof: f4 g5 b4 d5 d4 e5 a4 exf4 c4 a5 h4 gxh4 cxd5 c5 Na3 axb4 Nb1 b5 axb5 cxd4 Kd2 Kd7 e4 Kd6 g4 Kc5 g5 f5 d6 h5 d7 f3 b6 b3 b7 Kb4 e5 f2 e6 b2 g6 d3 g7 f4 e7 h3 e8Q h2 Qc2 f3 Ra7 h4 Qc7 Kb3 Be2 f1Q Ra4 f2 Ra7 h3 Bg4 Nf6 g8R Qd1+ Ke3 f1N+ Kf4 d2 Qg6 Bb4 Rf8 Nd5+ Ke4 Nb6 Qh6 Qg5 d8B N8d7 Nc3 Kc2 Bf3 b1N Bh5 Na3 Nge2 Ne3 Qc5 Nec4 Bf7 Na5 Rg8 Rh7 Ba2 Rf7 Qg1 Rf4+ Ke3 Qe1 Re8 d1Q Rg8 Qd6 Nb5 Qeh4 Be7 Be1 Rg6 Qhg4 Bb2 Qge6+ Be5 Qb4 Ng3 Kc1 Qh8 Qed6 Nf1 Qe6 Qg3 Qed6 Rg1 h1Q Nd4 Qhd5 Rg2 h2 Rb2 h1R Qg1 Q5e6 Bf8 Rh2 Ra6 Rd2 Rh6 Rd1 Rh4 Nb8 Bh6 Bd7 Bf8 Bc6 Be7 N8d7 Bd8 Na4 Bb6 Be4 Ba7 Nab6 Ke2 Rff8 Bh2 Rf4 Ke3 Rc8 Rh3 Rc4 Rh7 Qbb5 Rh3 Ra4 Rh4 Qbb4 Qg3 Nc8 Rc6+ Qdc5 Ra6 Qec4 Re6 Qd6 Rg6 Qce6 Qg2 Ncb6 Qg1
KR1N2Nn/n1q3B1/1N6/1pb3r1/q1P1r1nB/1q1B1k2/7b/Q1R1r1bQ b - - 0 1 illegal: No possible last move
3r1qB1/n1Nr4/2n4k/N1BRQ3/1R3r1b/1Q1P2pq/2bB3b/1r2n1NK b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 g4 h5 a4 hxg4 Ra3 c5 Ra2 cxb4 axb5 a6 Ra1 axb5 Kf2 g5 Kg2 f5 h4 Kf7 e4 Kg6 e5 g3 e6 f3+ Kh3 g2 Kh2 f2 h5+ Kh6 d6 f4 d7 b3 e7 f3 e8N b2 Be2 f1Q Na3 b1R Nc7 g4 Nc2 f2 Na3 g3+ Kh3 b4 Nc2 b3 Nd4 b2 Nc2 Rh7 Ne3 Be7 Qb3 Qf8 Ra4 Nc6 Nc4 Na7 Na5 Bh4 Rb4 Ne7 Bc4 Nec6 Bg8 Bb7 d8Q Rd7 Qe8 Rad8 Qe5 Ba6 Rh2 Bd3 Rh1 Bc2 Rh2 Qc4 d3+ Qcf4 Be3 f1R Bc5 Q4f6 Rh1 Rf4 Rh2 Ra1 Rh1 b1N Rh2 Na3 Rh1 Kg7 h6+ Kg6 h7 Kh6 h8B Rb1 Rh2 Q6e7 Bf6 Qh7 Bfe7 Qh8 Be3 Qh7 B7c5 Qh8 Bd2 Qh7 Nf3 g1B Kg2 Qh8 Rh1 Bh2 Re1 Qh7 Ng1 Qhf5 Kh1 Qh3 Bf7 Nc4 Re2 Ne3 Bg8 Ng2 Ree4 Ne1 Red4 Rf7 Rd7 Re7 Rdd4 Red7 Rd5
1n1Bb2R/2r1NB2/b3R3/r1P3N1/1q1N1K1b/b2qRp2/2bk1Q1Q/2b1r3 b - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 c4 exf4 dxc5 b5 b4 bxc4 a5 Nc6 a6 Na5 b5 Nb7 axb7 c3 b8R Bb7 Rc8 Bxc8 Kf2 Ke7 Kf3 Ke6 g4 Ke5 e4 a5 g5 f5 b6 d5 g6 h5 b7 c2 b8N d4 g7 d3 Nd7+ Kd4 e5 d2 e6 h3 e7 a4 e8R h2 Ne5 h4 Qe1 d1B+ Qe2 a3 Bg2 a2 Ba3 c1B Nh3 Ne7 g8Q Qb6 Nf2 h3 Qg4 Nc6 Nd2 Kc3 Qg8 Ra5 Qd5 Rh7 Ned3 Qb4 Qd8 Be7 Ng4 Nb8 Qd6 Bh4 Nh6 Ba6 Re3 Bc2 Ng8 Rc7 Rb1 a1B Ne7 Bab2 Qf2 Qb3 Rhe1 h1R Ra1 h2 Ne4+ Kc4 Bf1 Qb4 Ng5 Kc3 Re6 Rg1 R1e3 h1Q+ Bg2 Re1 Rb1 Qf1 Bh1 Bd2 Nc1+ Qd3 Bg2 Bb5 Bh3 Be8 Ne2+ Kc4 Bg4 Bdc1 Bh5 Kb3 Bf7 Kc4 Ng3 Kc3 Ne2+ Kd2 Ra1 Qc3 Bb4 Ba3 Kg2 f3+ Kh2 Ra6 Ba5 f4 Kh3 Raa7 Kg4 Qb4 Bb6 Ra5 Qe5 Rb7 Bd8 Rba7 Qb2 Rc7 Qh2 f2 Qd4 f3 Kf4 f1B Rb1 Qc3 Rbb6 Na6 Rh6 Nb8 Rbe6 Qb4 Rh5 Bh3 Rh8 Bf5 R3e5 Be4 Qdf2 Bd5+ Re4 Bc4 Re3 Ba6+ Nd4+
4K1B1/1q1r1R2/nBPB3p/n1N1R1n1/6bb/2b1q3/nkq2QqR/1Q2N3 b - - 0 1 legal: proof: f4 a5 b4 b5 c4 g5 a4 e5 h4 gxh4 d3 exf4 d4 c5 dxc5 bxc4 b5 Ra7 Qd6 Rb7 Qd1 Rxb5 axb5 c3 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 f5 e4 d5 g4 f3 g5 h3 b6 c2 b7 h6 Kg6 a4 Kf7 a3 g6 h2 g7 a2 Bh3 f2 Qe2 Kd4 e5 f1N e6 f4 e7 f3 e8R f2 Na3 Kc3 Bd7 d4 Nh3 d3 Ng1 d2 Re4 d1Q Rb4 Nf6 g8Q Qb6 Rb5 Ne4 Qg3+ Ne3 Nh3 f1Q+ Nf4 Ng5+ Ke8 Rh7 Qgf2 Qg2 Nd3 Na6 b8B Be7 Bd6 Nc4 Be6 Na5 Be3 c1N Bg8 Qc2 Qd1 Bg4 c6 Qb7 Rf1 h1Q Re5 Qhh3 Bb6 Qe3 Nc5 Kb2 Rh1 Bd8 Rh2 Rd7 Rb1+ Kc3 Rb4 a1B Rf4 Kb2 Rf7 Be7 Nb1 Na2 Nd2 Ne6 Nf3 Bh4 Ne1 Ng5 Qd4+ Kc1 Qd3 Bc3 Qd1+ Kb2 Qb1+
5n2/1N1b2K1/RQ2p1R1/1np4q/1bb1P1Bb/r1B4R/N1bQr1n1/k5B1 b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 Ra5 dxc4 Ra4 Qd6 Ra1 Qd8 g4 fxg4 b4 a5 h3 gxh3 Qb3 axb4 Qa4 Kf7 Qd1 Ke8 d4 Kd7 Kd2 Ke6 Ke3 Kd5 Kf4 g5+ Kf3 h5 e3 c3 b6 g4+ Kf4 h2 Kg5 g3 Kg6 b3 f4 c2 f5 g2 f6 b2 b7 e6 f7 h4 Ne2 Kc4 d5 Kb3 d6 g1B d7 h3 Ra2 Nf6 Ra4 Qe8 d8B Bf2 Ng1 Nh5 Rh4 Ka2 Rc4 Bd7 Bf6 Ra3 Be2 Ka1 Bg4 Bb4 Qd2 c5 Nc3 b1N Nge2 Nf4+ Kg7 Ng2 f8R Qh5 Ne4+ Nc3 Nd6 Bh4 Rg8 Rh6 Rd4 Nb5 Nc3 Rh8 Na2 Rh6 Rf1 h1B Rf3 h2 Be5 Rf6 Rh3 Rf2 Bf6 Re2 Be5 Nc6 b8Q Ne7 Qb6 Ng6 Nb7 Nf8 Bb2+ Kb1 Rc4 c1Q Bbd4 Qc3 Bg3 Ka1 Bf2 Ne1 Bg1 Bd5 e4 h1B Rh8 Bf3 Rh6 Ng2 Rg6 Ne1 Bf6 Ng2 Rd4 Bc4 Rd6 Rf2 Bd4 Bd1 Qa5 Re2 Ra6 Ba4 Qb6 Bc2 Bxc3+
1k6/5npR/Q1K1N2R/b2Q1R1n/nbPNBb2/qrp3b1/4B2B/r3b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 e4 c5 b3 c3 Ra4 c2 Ra6 c4 Qe2 c3 Qe3 Be6 Ra1 Bc4 bxc4 fxe3 Ke2 Kd7 Kd3 a5 Kd4 f5 Kd5 f4 h4 g3 d4 f3 h5 g2 b6 a4 b7 a3 h6 a2 h7 e2 e5 e1B Nd2 f2 Be2 f1N Rh6 Bd6 e6+ Kc7 e7 Na6 e8B Qe7 Bg6 Bdg3 Ne4 Nc5 Ng5 Na4 Ne6+ Kb8 Kc6 Qa3 Nf3 g1B d5 Bb6 d6 Ba5 Bf4 c1B Nfd4 Be3 Be5 Bef4 Be4 Ra7 Rb1 a1B Rb5 Bb2 d7+ Bc7 Bf6 Ba5 Rf5 Bbc1 Bh4 Bd6 Bg5 Bdb4 Be3 Bcd2 Bg1 Bdf4 Bh2 Ra8 Rh3 Nh6 d8Q+ Ka7 b8R Nf7 Qd5 Rd8 Rb6 Rdb8 h8Q Rb7 Nf8 Kb8 Nfe6+ Bf8 Qh7 Qe7 Nc5 Nb2 B2f3 Bh4 Bd1 Ng3 Qh6 Ra7 Ra6 Bd8 Be2 Rb3 Qhe6 Ra8 Qf6 Qa7 Qe7 Bdc7 Kd7 Bd8+ Nb7 Bb6 Qee6 Bb4 Qh6 Bbc7 Re6 Qa1 Ra6 Qc1 Re6 Ra1 Nc5 Na4 Rd6 Qa3 Qg6 Bf6 Rh7 Bh4 Ra6 Nh5 Qgc6 Nb2 Qa4 Bhf2 Rah6 B2g3 Qa6 Bca5 Nce6 Na4 Kc6
k1rrB1K1/3p2Pr/1n1r1q2/2NB4/2b4R/2N1r2Q/2BpR3/Q1bq1R1n b - - 0 1 illegal: No possible last move
1Bq5/2bb3p/1RnN4/n1bKp2R/4R1q1/b5P1/N1bk3N/QB1q1qQ1 b - - 0 1 legal: proof: f4 a5 b4 axb4 d4 f5 e4 fxe4 g4 c5 a3 bxa3 Bc4 cxd4 Be2 Qb6 Bf1 Qd8 f5 g5 Qe2 b5 Qd2 Nh6 Qd1 Rg8 Ne2 Ra6 Ng1 Rd6 Qd3 Rd5 f6 Rf5 gxf5 g4 Qf3 g3 Qe2 g2 Qd1 Rg3 hxg3 Qb6 Rh3 Qc7 Rh1 Qd8 Ke2 Kf7 c4 d5 c5 e5 c6 b4 c7 a2 Kd2 e3+ Kd3 e2 Rh5 e1B Rh2 b3 Nd2 b2 Ndf3 b1B+ Qc2 Ng4 Ne2 g1B Be3 Nc6 Nc1 Ba5 Rh1 Bd7 c8N Ba3 Rh5 Bc7 Nh2 Qg8 Bf2 Ne3 Bh3 Nc4 Nd6+ Kf8 f7 Kg7 f8R N4a5 Rb8 Qc8 f6+ Kg6 f7 Kf6 Kd2 d3 Ke3 d2 Bf5 d4+ Ke4 d3 Ba7 Bgc5 Bg6 Ke6 Rb6 Kf6 f8Q+ Ke6 Kf3 Kd5 Bb8 Kd4 Qd1 Kc3 Qg1 Kc2 Ke4 Kc3 Bf7 Bc2 Rab1 a1Q R1b4 Qb1 Ra4 Qb5 Ba2 Qb4+ Kd5 Qg4 Qf4 d1Q Qh1 d2 Qg1 Qdf3+ Re4 Qg2 Qff1 Q2f3 Nb3 Qg2 Qa1+ Kd3 Bb1 d1Q Nc1+ Kd2 Na2 Q2h3 Re1 Qf1 Re4
8/1QPpp3/BRqr2n1/qr1N4/1nR3bQ/rkBn1p2/B4b1N/3K3N b - - 0 1 legal: proof: d4 g5 f4 a5 h4 gxh4 g4 c5 a4 cxd4 f5 b5 e3 dxe3 g5 Qb6 axb5 Qa6 b4 Qg6 fxg6 axb4 c4 h5 c5 f5 b6 b3 g7 Kf7 b7 Ke6 c6 h3 c7 b2 g6 e2 Nc3 b1R Ra4 h2 Rd4 f4 Nf3 h4 Bg2 h3 Ba3 Rb5 Qb1 Nf6 g8N Nh7 g7 Nc6 b8Q Nb4 Na4 Ba6 Re4+ Kd5 Nb6+ Kc5 Kd2 e1N Bf1 Nd3 Bb2 Bb7 Ba1 Ra3 Nh6 Rg8 Rg1 h1Q Rg6 h2 Bc3 Rh8 g8B Bg7 Qc8 Nf8 Bh7 Bd4 Kd1 Bf2 Nf5 Qg2 Qa8 h1Q Ng3 Qh5 Qa4 Ba6 Rh6 Ng6 Nd5 Rf8 Nh1 Rf6 Be2 Rd6 Nh2 Qf5 Rh4 Bb7 Re6 Kc4 Qb2 Qf8 Rf6 Qa8 Rg4 Qa5 Bf1 Ra6 Rb6 Qe4 Rh4 Qe6 Rg4 Qc6 Bg8 Rc5 Qac2 Be3 Nf6+ Qd5 Rc6 Na2 Rh4 Bf2 Qb6 Qe6 Rd6 Bf3+ Be2 Rd5 Qb7 Qe4 Qcb2 Rc6 Q2b6 Nb4 Be6 Bh5 Rg4 f3 Qd4+ Kb3 Rh4 Nc5 Ba6 Ka4 Bf5 Kb3 Rg4 Qe6 Bb1 Nd3 Rf4 Rb5 Nd5 Rcb6 Qf6 Bg4 Qh4 Qf6 Rc6 Qd6 Rcc4 Qc5 Rfe4 Rf6 Re6 Qcb6 Rec6 Qc5 Rb6 Qc6 Ba1 Re6 Bc3 Rd6 Ba2+
2Q5/N3QB2/7R/Nb2q1q1/1Pbb1rp1/kbR2Np1/rpn5/BKnB4 b - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 hxg4 f4 e5 a3 exf4 Qa4+ b5 Qb3 a5 Qd1 b4 axb4 a4 d4 c5 b3 axb3 Ra3 cxd4 Ra4 Nc6 Ra1 Nb8 Kd2 g3 h4 Kd7 e4 g5 h5 f5 d6 Kc6 e5 f3 e6 f4 e7 f2 e8B+ Nd7 h6 f3 h7 d3 Bg2 Kb5 Kc3 f1B Kb2 d2 Nh3 f2 Rh2 g4 Bb7 Ne7 Bh5 Nd5 Ra2 Qg5 Na3+ Ka4 Qe1 d1Q Ng1 Nc5 d7 Qe2+ Kb1 Ne3 d8N Nc2 Nc6 Bg7 Bb2 Bd4 Ba1 Rf8 h8Q Rf4 Bf7 b2 Rh6 Be6 Qc8 Nd3 Nc4+ Kb3 Ba6 Nc1 Nf3 Qe3 Ra5 Bd3 Rf5 f1B Rc5 Bde2 Bb5 Ra2 N4a5+ Ka3 Na7 Bb3 Rc3 Bd3 Qe2 Qee7 Qee6 Qef6 Qe7 Qfe5 Ne1 Bfe2 Bc6 Bf1 Bf3 Bb5 Bd1 Bfc4 Nf3
2nB4/1qQ4K/1B1q2rb/1Qb4P/n5N1/R4Np1/1nB2Qpp/k4nrR b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 Qd3 b5 axb5 Bd6 Nh3 Bc5 Ng1 Bf8 Ra3 h5 Qg3 fxg3 Ra5 h4 Ra3 Bb7 Ra1 Be4 h3 Bg6 Be3 Qf6 Bh6 Bh5 gxh5 Qf5 Be3 Qxh3 Bc1 Qh2 Kd2 g2 Kd3 Ke7 Ke4 Rh6 Kf5 Qc7 c4 Kd6 e4 Kc5 b3 Kb4 c5 a5 b6 d5 c6 g5 b7 g4 e5 d3 e6 g3 e7 h3 e8Q h2 Qe6 a4 Be3 d2 Kg5 d1N Qf5 a3 Qe4+ d4 Bc1 f5 Qf3 d3 Be2 a2 Nh3 d2 Nf2 f4 Bd3 Na6 b8B Nb2 Ba7 d1Q Bc2 Nc5 Nd2 Ka3 Ng4 Ne7 Qf1 f3 b4 f2 b5 Re8 b6 Na4 Nf3 Qdd6 b7 Qc8 b8Q Rg6+ Kh4 Bg7 Qbb5 Qb7 c7 Bd4 c8Q Bc5 Qd8 Nc8 Bg5 Re1 Qc7 Rc1 Qfe2 Rg1 Bb6 f1N Qf2 Nd1 Rb1 a1B Bd8 Ka2 Rb3 Bg7 Re3 Ndb2 Rd3 Re6 Kg5 Ka1 Rc3 Bf6+ Kh6 Bg7+ Kh7 Rg6 Rb3 Bh6 Ra3+
KbBQb1N1/n5q1/bQBB1b2/2p2R1p/2Pp1bn1/4n2R/3rk1N1/7N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 e5 h3 exd4 h4 g5 b3 a5 c3 Ra6 Bf4 Rc6 Bc1 Rc4 bxc4 dxc3 Qd2 gxh4 Qe2 Qe7 Qd1 Qd8 Ke2 Ke7 Ke3 Kf6 Kd4 Kf5 Kd5 h5 f4 c5 b6 c2 b7 a4 Na3 h3 Ne2 Kg4 f5 e3 f6 d6 f7 h2 Ng3+ e2 Bf4 c1B Nc2 a3 Ne1 Nc6 b8Q a2 Qb6 Na7 Be5 Be7 f8N Qd7 Ng6 Bf6 Ne7 Nh6 Ng8 Qg7 Rb1 a1B Rb3 Bcg5 Rf3 Bc1 Rf5 Ba6 Bf4 Bae5 Qd3 Nb5 Kc6 d5 Qd1 Bb8 Bd6 Bf4 Qd4 Bc8 Qd3 Bd7+ Kb7 Na7 Ka8 Be8 Qd2 Nf7 Qda5 Ne5 Qd8 d4 Qab6 Rh7 Nc2 e1N Ne3+ Kh4 Be2 Ng4 Bf3 Nc2 Bc6 Rh8 Ra1 Rh6 Nh1 Rg6 g3+ Kh3 Ng2 Nce3 Ra6 Nf2 Ra3 Kg4 Rd5 Kf3 g4 Ke2 g5 Nfg4 Rf5 Be7 Rd3 Re6 g6 Bf6 Rd1 Re4 Rf1 Re5 Rf3 Re7 Rh3 Rb7 Qa5 Rb2 Qb4 Rd2 Qbb6 Qh6 g7 Qg6 Nh6 Qh7 g8B Qg7 Nf2 h1B Be6 Bc7 Bc8 Bb8 Ne1 Bd5 Ng8 Be6 Ng2 B6d7 Bd5 Bb5 Nh1 Ba6 Bc6
bQ1kq2N/Qb1q1bKP/q6r/7B/RQ1p1bR1/np1N4/B2N1p1n/8 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 a4 h5 gxh5 b6 Be3 b3 Bd2 Ra5 Bc3 Rd5 Ba5 Rb5 axb5 bxa5 Kf2 d5 Kf3 g5 h4 f5 c4 a4 e4 a3 h6 a2 e5 d3 b6 d4 c5 d2 h7 Bd6 c6 Nh6 c7 Qd7 h5 Na6 e6 Nb4 b7 Nc2 b8Q Na3 e7 Ng4 Qe1 d1B+ Ne2 Nh2+ Kg2 g4 h6 g3 Kh3 f3 Kh4 f2 Kh5 f4 Kg6 g2 Nc1 f3 Nd3 Bg3 Nd2 g1Q Qa7 Bb7 Kg7 Bf4+ Bg2 Qf1 Rg1 Qe2 Bh3 f1B Rg4 f2 c8Q+ Qd8 Qc7 Bfg2 Qcb8 Bgd5 Bg2 Bf7 Be4 Qe3 Bf5 Bdf3 Bg6 Kd7 e8B+ Ke7 Bf5 Qd7 Be4 Ba8 Bg6 Bfb7 Be4 Rf8 h8N Qe2 h7 Qe3 Rc1 a1Q Rc4 Qe2 Ra4 Qe3 Qd6+ Kd8 Bf5 Qe6 Qee5 Qe1 Qb4 Qa6 Qeb8+ Qc8 Bc6 Qe8 Bf3 Qd7 Bd1 Re8 Bg6 Re6 Bh5 Rf6 Bc2 Rh6 Bb1 Qe8 Ba2 Qd7 Qe5 Qe8 Qed6+ Qcd7 Qdb8+
1b3qn1/2p3B1/1RBQp1N1/4QQ1R/3q1qr1/6r1/B1prrN1P/kb3K2 b - - 0 1 legal: proof: b4 a5 g4 axb4 a4 d5 e4 dxe4 c4 f5 c5 fxg4 a5 Na6 Bxa6 b6 Bf1 bxc5 a6 h5 Na3 h4 Nb1 h3 Nxh3 c4 Ng1 Qd7 Qe2 Qd5 Qd1 Qd8 d4 Kd7 f4 Kc6 f5 Kd5 f6 g5 a7 e3 f7 c3 Ba3 e2 Ra2 Kc4 d5 b3 d6 g3 d7 g4 Nh3 b2 Ng1 g2 Bc5 g3 Nf3 g1R Bd6 g2 Qd2 Kb3 Qd4 Rh4 Qf6 Rg4 Be5 e6 Qf4 Bc5 f8Q Ba6 Nh4 Bd3 Q8f5 Qf8 Ra5 Rd8 a8B Ba7 Bg7 Bb8 Nd2+ Kc2 Ng6 b1Q+ Kf2 Kb2 Bc6 e1R Ne4 Qc1 Q4e5 Bb1 Bc4 Qg5 Rc5 Ka1 Ba2 Re3 Rb5 Reg3 Ke2 Qf4 Nf2 Rc1 Rf1 g1Q Rb6 Rc2+ Ke1 Qh1 Rg1 Re2+ Kf1 Qd5 Rg2 Qdd4 Rg1 Re8 d8Q c2 Qdd6 Rd8 Rg2 Rd3 Rg3 Rdd2 Rh3 Rd7 Bh8 Rg7 Rh5 Rg3 Ne7 R7g6 Bg7 R6g4 Ng6
n4B1r/1Q1KP2p/3nn1n1/3R1RnQ/p1k1b3/1N2rr1Q/1p3R2/5NBb b - - 0 1 legal: proof: b4 c5 h4 e5 d4 cxd4 f4 exf4 a4 b5 a5 Qb6 axb6 g5 Rh3 gxh4 Rh2 Nf6 Rh1 Ng8 c3 a5 e3 a4 b7 d3 Be2 Bd6 Bf3 Bc7 Be4 Ba5 bxa5 Ra7 Bd5 Ra6 Bb3 Ra8 Bc2 dxc2 Ke2 Ke7 Kf3 Ke6 Ke4 f5+ Kd4 d5 Kc5 b4 g4 b3 g5 f3 g6 b2 a6 f2 g7 f1R e4 f4 a7 h3 e5 d4 c4 f3 Bg5 c1N Rh2 f2 Qh5 d3 Bh6 d2 Nf3 d1N Nfd2 Na6+ Kc6 Nc3 b8B Nd3 c5 Ne4 Nb3 Nc7 N1d2 Nf4 Rd1 Ng5 Rg2 Re1 Nf1 h2 Rd5 h1B Rh2 Re3 Rg2 Nf6 g8R Nfe4 Rf8 Ng6 Rf5 Nd6 Bf8 Ba6 Rh2 Bd3 Rg2 Be4 Rh2 Ncb5 Bc7 Rb8 Bb6 Nc7 a8Q Re8 Qb7 Rf3 Ne3 f1N Rf2 Ng3 Nf1 Na8 Ba7 Nb6 Kc7 Ne2 c6 Re7+ Kd8 Nef4 c7 Na8 Bc5 Rf7 Be3 Rf6 Bd4 Re3 Ba7 Kf7 Kd7 Nfe6 c8Q Rh3 Re2 Rg3 Bg1 Re3 Rff2 Rff3 Re1 Nd8 e6+ Kf6 e7 Nde6 Rdd2 Ke5 Red1 Bc2 Rd5+ Ke4 Rc1 Bb1 Rf5+ Kd3 Rcc5 Bc2 Qd8 Bb1 Rcd5+ Kc4 Qh3 Be4 Qe8 Ngf4 Qeh5 Ng6 Qh2 Ng7 Qg3 N7e6 Qgh3
1kB1n1r1/8/N2Qr1r1/1KNqp2R/3q4/NQQpbP2/2RpB1q1/5r1q b - - 0 1 legal: proof: a4 a5 e4 f5 b4 fxe4 d4 b5 f3 c5 Bg5 cxd4 Ke2 h6 Ke1 hxg5 Qd3 Nc6 Qd1 Ne5 f4 Nf3+ gxf3 Ba6 Na3 axb4 Nb1 b3 Qd3 b4 Qd1 Bb5 axb5 Rh4 Bd3 Rh3 Bf1 Rh8 Kd2 d5 c4 Kd7 h4 Kc7 f5 b2 b6+ Kb8 f6 d3 c5 d4 h5 e3+ Ke1 g4 h6 g5 f7 d2+ Ke2 b3 Kd3 e2 Kc4 e1R b7 d3 h7 g3 c6 g4 Bh3 g2 Ra2 g3 Na3 b1Q Kb5 b2 Ne2 g1Q Nd4 g2 Qb3 Ra6 Ne6 Bh6 f8Q Be3 Nc5 Nf6 Qh6 Rf8 h8Q Ne8 Qhc3 Rg8 Qhe6 Qd5 c7+ Ka7 c8B Kb8 Qd7 Rag6 Rh2 e5 Qe7 Rf1 Qd6+ Ka7 b8N Qc1 Qcb4 b1R Na6 Qf2 Q4c4 g1Q Rc2 Qfg2 Nc7 Kb8 Qc3 Qe1 Rh1 Qh4 Rh2 Qhd4 Rh1 Re6 Rh2 Q2h1 Bg2 Qf2 Rh5 Rg1 Bf1 R1g6 Be2 Rf1 Qcc4 Qfh2 Qcc3 Q2g2 Na6+
2QkB2r/2RnNn1p/1r4nq/4Nr2/4qP2/r3nRp1/1B1N2p1/1Q2K1R1 b - - 0 1 legal: proof: b4 a5 d4 axb4 a4 bxa3 g4 f5 d5 fxg4 d6 cxd6 e3 d5 Nf3 d4 Ng1 d3 Kd2 Qc7 Ke1 d2+ Ke2 Qd8 Kd3 d5 h3 g5 Be2 d4 Nf3 g3 Qg1 g4 Qd1 g2 Ng1 g3 Bf1 Bg4 hxg4 Bg7 Kc4 d3 Kb3 Bd4 exd4 Ra5 Kc3 Ra8 f4 e5 g5 b5 g6 a2 d5 e4 d6 b4+ Kb3 e3 c4 e2 g7 e1N c5 Nf3 c6 Qg5 c7 Ne5 c8N Nh6 Nf3 Ng6 Rg1 Ra5 Ne7 Nf7 g8Q+ Kd7 Kc4 b3 Kc3 b2 Be2 Rf5 Ne5+ Ke6 d7 Qh6 Qf1 d1Q d8R d2 Rd3 Qa4 Rf3 d1N+ Kd2 Ne3 Bb5 Qe4 Qc8+ Kd6 Be8 Nd7 Qa8 Kc7 Ke2 Ngf8 Nd2 b1R Qa6 Rb3 Bb2 Ng6 Rc1+ Kd8 Rc7 a1R Qb1 Raa3 Ke1 Rb6 Qc8+
r2B2Q1/2p1r1q1/2QpP1N1/1nN2bpR/n4q1R/1p6/k1BR2K1/N1rb4 b - - 0 1 legal: proof: f4 b5 d4 e5 b4 exf4 a4 bxa4 g4 h5 gxh5 a5 c3 axb4 d5 b3 Nh3 Bb4 cxb4 a3 d6 Ra6 Ng1 Rxd6 Qd3 Rd5 Qd1 Rd2 Kf2 Ke7 h4 Kd6 b5 Kc5 h6 Kb4 b6 f5 h5 a2 h7 f3 h6 f4 b7 d6 Rh5 Qe7 Nc3 Nc6 Na4 Nd4 b8Q+ Nb5 Qc2 Nf6 Nc5 Bf5 Qg8 Nd7 Rb1 a1Q Rb2 Ka3 Bg2 Rd5 e4 Qf7 e5 Nb6 Ne2 Na4 Nd4 g6 Kf1 f2 Be4 g5 Kg2 f1R e6 Re1 Be3 Rc1 Qc3 Qf6 Rd2 Qb2 Nc2+ Ka2 Bd4 f3+ Kg3 f2 Kg2 Qe5 Na1 Qf4 Bf6 Re5 Bc2 f1B+ Kh1 Bc4+ Kg2 Be2 Bd8 Bd1 Qf3 Re1 Qc6 Rf1 Qg6 Rg8 h8N Qbd4 h7 Qg7 Qge8 Rf8 Ng6 Rf7 h8R Re7 Qg8 Rf3 Rh3 Rf1 Rh1 Rf3 R8h4 Rh3 Rg4 Rh8 Rgh4 Bd3 Rh5 Qh7 R1h4 Bf5 Qf7 Qg7 Qf8 Rd7 Be7 Rg8 Qf7 Ra8 Bd8 Re7 Qg8
n1Q1b1B1/2Q4q/B2pKbb1/2p3Q1/RN1Nnk2/5N2/r1p3Pp/1R2bn2 b - - 0 1 legal: proof: f4 g5 c4 d5 d4 dxc4 a4 a5 h4 f5 e4 fxe4 f5 b5 axb5 Ra6 d5 Rg6 Bf4 gxf4 d6 Rg5 hxg5 exd6 Kf2 Kd7 b4 c5 f6 Ke6 b6 Kf5 b5 h5 g6 h4 b7 c3 g7 h3 f7 e3+ Kf3 h2 b6 c2 Qc1 e2 Nd2 e1B Ne4 a4 Qe3 a3 Qd4 a2 Qf2 Be7 f8Q+ Bf6 Ba6 Qd7 Bc4 Na6 b8N Nc7 b7 Na8 Qh4 Qc7 Nc6 Bd7 b8Q Be8 Rb1 a1N Nd2 Nb3 Nb4 Ke5 Kg4 f3 Bd3 f2 Ne2 f1B Nd4 Qa7 Ba6 Bd3 Rf1 Bdg6 N2f3+ Ke4 Qc7 Nd2 Rg1 Nf1 Qg5 Rh7 Ra1 Rh3 Ra4 Qb7 Nh4 Ra3 Nhf3 Ra2 Rh1 Ne7 g8B Nd5 Rg1 Nc3 Rh1 Bc6 Qfc8 Bce8 Qh4 Ke3 Qh5 Ne4 Rg1 Bgf7 Kf5 Bg6+ Ke6 Kf4 Qc6 Qh7 Q6c7 Beh4 Rh1 Nfd2 Re1 Nf1 Rb1 Be1 Qg5+
1qQ1rnb1/p2BN1pp/N6Q/n1br3R/B2pp1KP/Q7/3B4/R2k2n1 b - - 0 1 illegal: No possible last move
2B1KBkn/p1Q2pNp/1P5b/1p1rp2q/r1Q1Q3/2R1N1rR/6q1/R6b b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 Qd6 b4 Nc6 h4 gxh4 a5 Bf5 b5 Bc8 a6 bxa6 b6 Qd8 Qb3 Nb8 e4 Bd7 d4 Ba4 e5 Bd7 d6 Bg7 d5 Bc8 Qb5+ axb5 Kd1 Kf8 f4 Nd7 e6 Bd4 f5 Bf2 f6 Ngxf6 exd7 Ng8 Ke2 c5 Kf3 e5 Ke4 h3 Kf5 h2 g4 c4 g5 c3 g6 c2 Ne2 Ne7+ Kf6 Bg1 Nd2 Rb8 Nd4 Ba6 Ba3 c1Q Nf5 Qc4 Bh3 Qa4 Nc4 Qe8 d8Q Qb3 d7 Rg8 d6 Qa4 Qc8 Ra8 d8R Qd1 d7 Qh5 Bg4 Bc5 Nce3 Bb7 Qc6 Rg7 Rc8 Bd6 Rc7 Rd8 Qc2 Bf3 Qa2 Rg8 Rc3 Bc5 Qc4 Be4 Nf1 Be3 Bd6 Bh6 N1e3 Rc8 d8Q Rc5 Qc7 Qa8 Nh4 Bg2 Bc8 Qe4 Nhf5 Rd5 Rhf1 Qc2 Rf3 Qd2 Rh3 Bf3 Raa3 h1R Ra4 Rb1 Ra1 Rb4 Bc5 Bh1 g7+ Ke8 Bd6 Ng6 Be7 Ra4 Bd6 Rf8 g8Q Nh8 Qgg4 Qg2 Qge4 Rg8 Be7 Rg3 Bb4 Rc5 Ng7+ Kf8 Ba3 Kg8 Ke7 Rd5 Ke8 Ng6 Bd6 Nh8 Bf8
n1Nr4/6b1/2n1Pq2/1B2N1nn/Q3q2Q/1n5k/b1b1RRRr/nB2QK1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 h4 Ke7 e4 Kf6 c4 g5 b4 a5 e5+ Kf5 h5 d5 c5 d3 h6 d2+ Ke2 a4 c6 d4 h7 d3+ Ke3 g2 Kf2 g3+ Ke3 g4 b6 a3 c7 a2 b7 Na6 b8R Bg7 b5 Be6 c8B Qf6 b6 Nc7 b7 Ne7 Be2 Nc6 Nf3 g1N Rh3 g2 Kf2 g3+ Ke3 Kg4 Rh5 Nh3 Qa4+ Nf4 Qb5 g1N Ne1+ Nf3 Nc3 d1B Rh6 g2 Kf2 d2 Nd3 Nh5 Ne4 Bc2 Rg6+ Kh3 Rf1 a1N Qa4 Ng5+ Kg1 d1Q Nd6 Qb1 Re1 Rd8 h8Q Ra7 Qf8 Na8 Qe8 Qb4 Bd7 Qe4 Nc8 Ra5 Qe7 Ra7 Be8 Ba2 e6 Ra6 Ne5 Rb6 Bf3 Rb2 Kf2 g1N Qeb4 Ne2 Kf1 Nc1 Re2 Ncb3 Qe1 Qe7 Rf2 f5 Be2 f4 Bb5 f3 Bd3 Bd1 Bb1 Bc2 Re2 f2 Rf6 Na7 Bb5 Nc6 Rf4 Qf8 Rg4 Qf6 Rg2 Rd7 Nb6 Rd2 Rf8 Rd8 b8Q Nca5 Nc8 Rd6 Rd2 Qe7 Nf7 Bd1 Rg1 Rd8 Qe5 Nc6 Qf5+ Kh4 Ne5 Qf7 Qf3 Qg6 Rf5 Qf6 Rg3 Rc2 Kg2 f1N Kf2 Rb2 Rg1 Nfg3 Qfe3 Nh1+ Kf1+ Nf2 Rg3 Nh1 Rc2 Rd2 Rff3 Rh2 Re2 Rd2 Rff2 Rd8 Rg2 Bc2 Qf4+ Kh3 Qh4+
1b1kbK2/1Pb5/N1n1q1QB/2r5/1b1Qb1rr/1n3R2/R1qB1N1N/2rq3Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 d5 Kd3 g5 c4 a5 b4 f5 e4 a4 h4 a3 b6 g4 h5 f4 h6 a2 b5 f3 c5 f2 b7 f1B+ Ne2 g1R e5 g2 h7 g3 b6 Ne7 c6 Bf5+ Kd2 d3 Kc3 d4+ Kc4 d2 Kc5 d3 e6 Nd7+ Kd6 Be4 b8N Qc8 b7 Kd8 Rh6 Nc5 Rf6 Nb3 Nbc3 Ra5 Nd4 Rc5 Nf3 Rh1 Na6 g1B Nh2 g2 Qe1 d1Q Bh6 d2 Rf3 Qc2 Nd1 Bb5 Nf2 d1Q+ Bd2 Rg8 h8B Rg4 Bg7 Rh4 Bh6 Rg4 Rb1 a1R Rb2 Rc1 Ra2 Ba4 Qe3 Bb5 Qd4 Ba4 Nf1 Rhh4 Nh2 Bb5 Nd3 Be3 Nf2 g1B c7+ Ke8 Qg7 Nc6+ e7 Bd4 Qh8 Bc3 Qe5 Ba5 Qd4 Qf5 c8Q+ Bd8 Nh1 Bf2 Qe6 Bg3+ Qee5 Qf7 Nf2 Qfc4 Qd5 Bc7+ Ke6 Qce2 Qa1 Bb8 Qdd4 Bgc7 Kf6 Bg7+ Ke6 Bge5 Qb1 Bed6 Kf6 Kd7 Kf7 Qec4+ Kf8 Qe6 Bdg5 Rd5 Bd2 Bb4 Qa7 Rc5 e8Q+ Kd6 Qg6 Kd7 Qa1 Kd8 Qb1 Ne5 Qa1 Be8 Qb6 Nc6 Qd4+ Qd7 Qb5 Qd5 Qf1 Qd7 Qh1 Qd5 Qc3 Qe6 Qd4+
1bQ5/5k2/1RbR2qq/n3BbPn/Q3r1Bq/K3Nr2/R1N1bN1r/3rq3 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 h5 c4 d5 Kc2 f5 Kb3 h3 e4 h2 g4 f3 b6 h4 e5 h3 c5 f2 c6 f4 b7 d3 e6 d2 c7 d4 e7 f3 Bg2 f1R Ra3 f2 Ra2 d3 Ra7 Kf7 e8R Qh4 g5 Bf5 c8N Nc6 Nc3 Na5+ Ka4 b3+ Be4 b2 Nge2 b1Q Nb6 Nf6 Ba3 Bd6 Rb8 Nh5 Nc4 Qb6 Rg1 h1B Ne3 h2 Bb2 Bg2 Nd4 h1Q Rd8 Bb8 Ka3 Qg6 Qa4 d1Q Rd6 d2 Bf3 Qe1 Bg4 d1R Ndc2 Bc6 Ne4 Re8 Ra6 Ra7 Rb6 Re5 Nd2 Re4 Be5 Q1h3 Rg2 Rh1 Rg1 f1B Rg2 Be2 Rf2 Rh2 Rg2 Bc7 b8Q Ra8 Qb7 Rf8 Qc8 Bb8 Rf2 Rf4 Rg2 Rf3 Ne4 Re8 Nf2 Re7 Bd4 Re4 Be5 Nf6 Qh8 Qhh6 Qd8 Nh5 Qc8 Qh4 Nh1 Qhf2 Nd4 Qh4 Rf2 Beb5 Ra2 Ba6 Nf2 Be2 Nc2
2qnn3/Qbq1k2n/B3B2Q/q1Q1b2r/Rq2qN1P/7q/3B1qN1/2K3Rb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Nd2 d5 Nb1 d4 g3 gxh4 Qd2 h5 Qd3 h3 Qd1 h2 Nh3 b5 Nf2 h4 Nh3 Ra6 Ng1 h3 Kf2 Rah6 Ke1 Rh4 gxh4 Qa5 Bg2 Qb6 Bf1 Qd8 Kd2 d5 e4 f5 a4 d3 c4 f3 e5 d4 a5 f4 e6 b3 a6 f2 a7 b2 a8Q b4 c5 f3 e7 b3 c6 Nf6 c7 Nc6 Qb8 Rh5 Qa7 Bg7 Qa2 Nh7 Qe2 Be5 Kd1 d2 Qa8 Bb7 c8B Qa5 Bg4+ Nd8 Bg2 f1Q+ Qe1 f2 Bf5 Qc4 Bd5 f1Q Ne2 Qcc7 Bfe6 Qf2 Rf1 h1B Be4 h2 Nbc3 b1Q B4d5 b2 Nf4 Qe4 Bc8 b1Q Qa7 Qbb4 Bce6 Qc8 Bc4 Qac7 Bd3 Qba5 Kc2 d1N+ Qd2 Nb2 Rg1 Nc4 Ra4 Nd6 Ng2 Qb4 Kd1 Qba5 Bdc4 d3 Qh6 d2 Ba6 Qeb4 Kc2 Qe4+ Kb2 d1Q+ Bd2 Qb3+ Kc1 Qbb4 Qc5 Bh8 Ne2 Be5 Bec4 Kd7 Nef4 Ne8 Qa7 Nef6 e8Q+ Kd6 Qeg6 Ke7 Qf5 Ne8 Ne3 Bf3 Neg2 h1Q Ne6 Qh3 Nef4 Qee2 Qc2 Qee3 Be6 Qee4 Ne1 Bh1 Neg2 Qee3 Qc3 Qee4 Qcc5+
bK5b/2R1b2Q/B1r1k1q1/r3NQ1P/N5B1/1b1brb1n/1B2q1r1/R2R3b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 g5 e4 d5 h4 f5 a4 b5 h5 g3+ Kf3 d3 a5 b3 c5 g2 e5 d2 e6 g4+ Ke2 b2 Kd3 f3 Kd4 g3 Ke5 d4 a6 d3 c6 b4 a7 f4 c7 b3 Be2 f2 Ra5 f1R Bg4 f3 Bf5 f2 Bg4 Nd7+ Kd5 Rh6 Kc6 Nc5 Ra3 Re1 Nh3 f1B Ra5 g1B Ng5 g2 Nh7 Re3 Ng5 Bb7+ Kb6 Qe8 c8B Ne4 Kc7 Nf2 Rb5 Nh3 Nc3 b1B Bf5 b2 Qf3 d1B Rb3 d2 Nce4 Bfd3 Qg4 Bf3 Nc5 d1B Rc3 Bb3 Qe4 B1a2 Rc4 b1Q Bg4 Bf2 Rc3 g1R Bb2 Rg2 Rd1 Be1 Rcc1 Bc3 Nf7 Bh8 Ne5 Kf6 Rc4 Ne7 Na4 Nf5 e7 Bd5 Bb7 Ke6 Ba6 Qb5 e8Q+ Be7 Qd8 Bc6 Rc2 Bbd5 Qf8 Bab3 Qg7 Bb7 Qh7 Qe8 Ba3 Qa2 Rc4 Qe2 Bb2 Qg6 Rc3 Rd8 Rc5 Ba8 Rc2 Rd6 Kb8 Rc6 Rc4 Rc5 Rc3 Ra5 Rc7 Bab7 a8R Bdc6 Ra7 Ba8 Rc8 Bcb7 Rc7 Qg7 Rcc1 Rf2 Nf7+ Kd7 Bc4 Bh1 Ra1 Rh2 Ba6 Rg2 Qf3 Rb6 Ne5+ Ke6 Qf4 Bf3+ Rb7 Qg5 Qe4 Rc6 Rc7 Qg6 Qxf5+
1Nkq3Q/3R2r1/1qq5/2b1QRnr/n7/q1q1rPKQ/n1B3Bn/2N2q1R b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 f3 axb4 g5 b6 Bf4 h6 Bd6 hxg5 Be5 Bb7 f4 Bf3 exf3 f6 Bd3 fxe5 Bf1 e4 Kf2 e5 h4 d5 a4 Kd7 c4 d3 f5 b5 a5 d2 a6 d4 h5 e3+ Kg2 e2 a7 e1Q f6 d3 f7 b3 c5 b2 c6+ Kc8 h6 g4 h7 g5 c7 g3 Rh5 e4 Nh3 e3 Nf2 e2 Rh1 b4 Rh6 b3 Qc1 d1Q Qe3 g4 Rh3 d2 Qd3 Bc5 f8Q Na6 Rh4 Nb4 Nc3 b1Q Ra2 b2 Rh3 Qdc1 Qg6 d1Q Qfh6 Qd1d3 Qgh5 Nf6 Nd5 Qa3 Q6g6 Qec3 Qc2 e1Q Ra1 Na2 Qe4 Re8 Qf4 Re3 h8Q Qg6 Nb4 b1N Na6 Qed1 Kg1 g2 Kh2 g1N Bg2 Qf1 Nd3 Q1c2 Rh4 Nh3 Qfe5 Ng5 Nb8 Qca4 Kg3 Qc6 Nc1 Qb6 Kf4 g3 Rh1 Ng4 Qh4 Qgc6 Qh3 Qe2 Rd1 Qf1 Rd7 Nh2 Rd6+ Kb7 c8B+ Kc7 Be6 Kb7 Rd7+ Kc8 Na6 Rb8 Bf5 Rb7 a8R+ Rb8 Bh1 g2 Kg3 g1R+ Bg2 Rh1 Raa7 Rb7 Bc2 Rc7 Rf7+ Rd7 Rf5 Rg7 Q8h6 Qcd2 Qh8 Nbc3 Nb8 Na4 Rd7 Qdc3 Q3h6 Ng4 Qhe6 Rhh7 Qh6 Nh2 Qh3 Rh5 Nb3 Qfb5 Rh1 Qf1 Nc1
qkb2B2/1B1N4/2n2bR1/1Q3qNK/1qQ1P3/1r1Rq1R1/Q3r3/b2r1brb b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 g3 Na6 Rh3 Nc5 Rh1 Ne4 Nd2 g4 Nb1 Ng5 hxg5 fxg3 c4 f5 a4 b5 c5 h5 g6 d5 g7 Kd7 c6+ Kc7 e3 f4 Ke2 d3+ Kd2 d4 a5 h4 a6 b3 a7 g2 Na3 h3 Ke1 h2 Kf2 g3+ Kf3 d2 Bb2 b4 Qe2 d1Q Nc4 d3 Na3 d2 Bc3 b2 Rc1 b1Q Bb2 b3 Rc2 Rh3 Ba1 b2 Rc3 Qdc1 Rd3 d1R Nc4 Be7 Ne5 Bf6 Nd7 Ne7 Kg4 f3 g8Q f2 Nf3 g1B Ng5 g2 Qa2 Rb8 a8Q Rb3 Q8a6 Qbc2 Q6a4 b1Q Qb5 Rh8 Bc3 Re8 Bb4 Qc5 Qec2 Qf5+ Kh5 Qa3 Be2 f1B Bf3 Bf2 Qc3 g1R Qcc4 Bg3 Be4 Bge5 Bd5 Ba1 e4 Rf8 Bc5 Qac1 Ba3 Qe3 Bb4 Rg8 Ba3 Rg2 Rg1 Re2 Rg3 h1B Bc5 Ba6 Bb4 Qa8 Bd6+ Kc8 c7 Nc6 Bf8 Rg6 Qba5 Kb7 c8R Qb2 Re8 Qbd2 Q5a4 Qb4 Re6 Kc7 Qab5 Bc8 Nb6 Kb8 Rd6 Nd8 Bb7 Nc6 Nd7+ Kc7 Rf3 Bfd4 Re6 Rg7 Rh6 Bf6 Rh3 Qff4 Nf7 Rg1 Ng5 Qff2 Rg6 Qf5 Ne5 Kb8 Rf3 Bhg2 Rg3 Bh1 Nd7+
1B2N2R/Q2qk2q/4qB2/P1nbnnK1/N2b1rn1/3Q1Rq1/3b3b/1Qb3N1 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 f5 b5 b4 axb4 Be2 c5 g5 cxd4 Bf3 Ra6 Bg4 Rf6 gxf6 hxg4 Kd2 d5 a4 e5 c4 g5 h4 e3+ Ke2 b3 c5 g3 Kf3 g2 Kg4 b2 a5 e2 c6 e1B h5 b4 h6 b3 h7 e4 c7 e3 f7+ Ke7 Qd3 e2 Ra3 Bb7 c8Q Nc6 Nd2 b1Q Qg3 b2 Rh2 d3 Kh5 d4 Ra4 g4 Ra3 Nh6 Nf1 d2 Rc3 d1Q Rf3 d3 Rf4 d2 Nh3 g1B Qc7+ Qd7 Qb6 Bd4 Qd3 g3 Rf3 g2 Ne3 g1B Kg6 Ne5+ Kg5 Nhg4 Qa7 Qa2 Nc4 b1Q Nb6 Bd5 Na4 Qdb3 Bb2 Bg7 f8N d1N Ne6 Rf8 h8B Nde3 Nc7 Bd2 Ne8 e1N Rh1 Bh2 Ng1 Rf7 Bc1 Bf8 Bg7 Q1c2 Bb2 Qcc7 Qb1 N1d3 Bc1 Nc5 f6+ Ke6 Ba3 Qd3 Bc1 Qh7 Qd3 Bd6 Ba3 Rf8 f7 Ke7 Bb4 Bc1 Bd2 Nf5 Bf4 Qg2 Qb1 Qe6 Qd3 Qcd7 Qb1 Rh8 Qd3 Qg3 f8Q+ Kd8 Qf7 Rf8 Qg6 Ke7 Qb1 Na6 Qd3 Bb4 Qb1 Bbd2 Qd3 Nfe3 Qb1 Nc5 Qgd3 Nc6 Bb8 Nce5 Rf2 Rf4 Rf3 Qe1 Qda6 Nf5 Qad3 Bg3 Rh6 Bh2 Rh5 Qg3 Rh3 Qhg8 Rh8 Qh7 Bf6+
1R1qb2K/N3R3/Brr2Pqb/1q6/k1r1QB1N/QN1br3/1nr2q1B/1b6 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Ba6 fxe6 Be2 e5 Bf1 e4 h4 gxh4 a3 b5 Ke2 b3 Ke1 Na6 a4 b4 Be3 Nc7 Bc1 Nb5 axb5 Qc7 Qd3 Qb6 Qd1 Qd8 Kd2 d5 c4 Kd7 f4 e5 g4 h5 b6 Kc6 b7 e3+ Kd3 e2 b8B e1Q c5 Kb5 f5 h3 c6 b2 c7 h4 g5 h2 f6 h3 g6 b3 g7 Nh6 g8N Qf2 Qe2 e4+ Kd2+ d3 Kc3 e3 Kd4 Ng4 Nh6 Ra6 Ng8 Ne5 Ne7 Bd7 c8Q Rc6 Qd1 e2+ Be3 e1R Nf5 Bh6 Qc1 Nc4 Qc3 d2 Na3+ Ka4 Bf4 d1B Bb8 b1Q Bg3 b2 Bg2 Be8 Qe6 Bc2 Nh4 Bd3 Ne2 Rg8 Bf3 Rg4+ Qe4 Rf4 Rg1 h1Q Nc1 h2 Be2 Qhg2 Nb3 h1R Bh2 Qg6 Rg5 Rc1 Re5 Rhe1 Re7 Rc2 Ra2 Rb6 Kc5 d4 Nb5+ Na3 Bc1 Rg4 Bf1 Re3 Na7 Rf4 Bd2 Rg4 Be2 Qbf1 Bc1 b1B Rb2 Nc4 Bd2 Rh3 Bdf4 Re3 Bd6 Rc6+ Kd5 Rb6 Ke6 Rf4 Na5 Rc6 Rb8 Nb2 Bd1 Q1e2 Nb3 Qeh5 Be2 Qb5 Ra8 Rf5 Bf1 Rfc5 Rb8 Rc4 Bf4 Be2 Bh2 d3 Bf4 d2 Bh2 Rc8 Bdf4 d1R Qd3 Rc6+ Qd6 Bd3 Be2 Qgg3 Bf1 Bd7+ Kf7 Rdc1 Qc5 Rb6 Be2 Qg5 Qd6 Qgf5 Bf1 Be8+ Kg8 Qg6+ Kh8 Qbg5 Bh3 Qb5 Bc8 Bf1 Ba6 Bd3 Qee6 Rcc6 Qe4+ R2c4 Qc5 Rc2 Qa3+
r1n3R1/1qk1qN2/r2Nb2K/1b1nq2p/q1qQrBN1/7P/6QB/1nR2Q2 b - - 0 1 legal: proof: f4 e5 b4 d5 c4 d4 e3 g6 b5 a6 Bd3 axb5 Kf1 bxc4 Bf5 gxf5 Ke2 c3 Ke1 Bg7 Ke2 e4 Ke1 Be5 fxe5 dxe3 Ke2 Kd7 d4 h5 g4 b5 a4 c5 e6+ Kc7 a5 c4 h3 b4 a6 c2 d5 c3 g5 b3 a7 f4 g6 f5 e7 f3+ Kf1 e2+ Kf2 e1R Kg3 f4+ Kh4 e3 Kg5 f2 g7 f1Q Qg4 e2 Bb2 c1Q Nd2 f3 Qd4 f2 Nf3 c2 Nh2 Nc6 Rg1 Nb4 Ng4 Qb1 Bc1 b2 Ne4 Be6 Nd6 Rh6 Bf4 c1Q Nf7+ Qd6 Rg2 Qcc2 Bh2 Qa4 e8N+ Kb7 Bf4 Ne7 g8Q Nc8 Qf8 Qh7 Rc1 b1N Rg3 Qc5 Ned6+ Kc7 Rg1 Qg2 Bh2 f1B Bf4 Qc4 Bh2 Rb8 a8Q Qhe4 Nf5+ Qe5 d6+ Kd7 Qae4 Nd5 Qf3 Qh1 Qg2 Ra8 Bf4 Kc6 d7 Kc7 d8B+ Kb7 Be7 Kc7 Qh2 Qf3 Qg2 Qfb3 Ba3 Qb7 Bc5 Bd7 Bh2 Rha6 Ba7 Be6 Kh6 Rd1 Bc5 e1Q N5d6 Q1e3+ Bf4 Re1 Bb4 Qea3 Bh2 Re4 Bd2 Qcc5 Bdf4 Bb5 Qg8 Q3b3 Qf1 Qbc4 Qg6 Re2 Qc2 Re4 Rg3 Qca3 Qcg2 Qe3 Nf2 Qe1 Rg8 Qeb4 Ng4 Qbc5 Nf5 Qe7 N5d6
1qB1n1Q1/2nnN3/2Nb2K1/1BQrqp2/rR4N1/r1n1b1R1/kn1P2b1/1Q6 b - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 h5 b3 hxg4 f5 e6 Ba3 exf5 Be7 b6 a4 b5 Bh4 f4 Bg3 fxg3 axb5 Qg5 Ra2 Qf6 Ra1 Qd8 h4 Kd7 e4 Kd6 Ke2 Kc5 Ke3 Kb4 Kf4 f5 h5 c5 b6 g5+ Ke5 a5 h6 c3 h7 g2 b7 a4 Rh4 g3 Rh6 c2 Qh5 c1R Ne2 g1B Qf7 a3 Qe7 g4 Qd6 g2 Kf4 g3 e5 a2 e6 Rc4+ Nd4 Na6 b8N Nc7 e7 Bb7 Kg5 Ra3 Rh3 Be3+ Qf4 g1N Bd3 g2 Nc3 Nf6 e8B Bd6 Nd1 Ne2 Bb5 g1N Nf2 Nfe8+ Kg6 Nc3 Qe5 Bg2 Ng4 Nf3 Rb1 a1Q Rg3 Rf8 h8Q Rf7 Rg1 Rd7 Qg8 Qb2 Ra1 Qe7 Qed5 Qe5 Rb1 Rd8 Ba6 Rd7 Bc8 Rd8 Ne6 Rd4 Nf8 c4 Qc6 Rd5 Bf1 Ra4 Qb6+ Ka3 b4 Ka2 b5 Rd7 Qc5 Rh7 b6 Rh3 b7 Qb6 Nf6 Qa7 Na6 Qb8 Ng4 Nd1 Rc1 c3 Qe6 c2 Kf7 Qf4 Rb1 c1N Ng6 Bf2 Ne7 Qa7 b8Q Ne2 Kg6 Qd4 Qg8 Ne5+ Kg5 Qb2 Re3 Nd7 Kg6 Qe5 Qbb5 Rf3 Nb8 Qb7 Nbc6 Qb8 Qd3 Rg3 Rb4 Nb2 Ree4 Re3 Qdc2 Rb3 Re3 Nc3 Bb5 Rba3 Rg3 Be3 Qb1+
Q1R2bRK/7n/4qNq1/1r2p1Qn/1nr4N/rB3B1k/b1P1nb2/4nQR1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Kd2 d5 b4 Kd7 h4 Ke6 g7 Kf5 h5 e5 b6 a5 b7 a4 b5 d3 Kc3 a3 h6 g4 h7 d2 b6 d4+ Kc4 g3 Nc3 a2 Bd3 g2 Qh5+ Qg5 Kd5 d1N Bc4 d3 Qe2 e3 Rh4 d2 Rc1 a1R Ne4 f3 Ba2 f2 Bb3 f1N Qc4 e2 Rh6 Kg4 Rh5 e1N Rb1 Ng3 Nf3 g1B Nh4 R8a3 Qf1 Na6 b8Q Bf2 b7 Qg6 Qa8 Bd7 Rh6 Nh5 b8Q R1a2 Qbb7 Rb2 Nf6+ Kg3 Qb4 Be8 Ke6 Nc3 Qc5 d1Q Qe7 Nb4 Bd5 Bb5 Bf3 Ne2 Qed8 Ba4 Qd2 Kh2 Qg5 Qdd3 Rd1 Qgf5+ Kf7 Bb3+ Bd5 Qfh3 Rg6 Ba2 Rc1 Rbb3 Bf3 Qdf5 Rd1 Qg2 Rd8 Kh3 Rc8 Qg4 Nd7 Ngf6 g8B Qf5 Rg7 Qg4 Kg6 Rb1 Bb3 Qe6 Kh6 Rg8 h8R Nh7+ Nf6 Rb2 Ba4 Rbb3 Kg6 Rc3 Bb3 Rc4 Kh6 Be7 Kg6 Rd8 Rhg8 Rd5 Kh6 Rb5 Rg6 Nhg3 Kg7 Nh5+ Kh8 Bf8 Qh6 Kh2 R6g7 Qg6 Qe3 Qgf5 Rg2+ Kh3 Qg5 Qg6 Rg1+
2b2qqk/1Q2r1np/nrr4n/K1NR1R2/Q2B4/2nn1P2/4QB2/1B1qNb2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 e5 axb4 e6 fxe6 Bb2 e5 Bc1 e4 a3 gxh4 Bf4 b5 Bg5 b3 Bc1 b2 Be2 b4 Qd3 b3 Qd1 Bh6 Bf1 Bf4 Rh3 Bd6 Rh1 Bb4+ axb4 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 Kf8 g4 Kg7 c4 e5 c5 d5 f3 e3+ Kd3 e2 c6 e1R c7 e4+ Kd2 e3+ Kd3 h3 g5 h2 b5 e2 b6 Nh6 b7 Na6 b8B Qf8 Ba7 Rb8 g6 Rb6 Nc3 b1N Be3 b2 Ne4 Nc3 Ra5 b1B+ Qc2 Rg8 Nh3 Kh8 Bf2 Rg7 Rg1 h1N Rg5 Re7 Nc5 Ng3 Rf5 Nh5 Nf4 Rc1 Ng2 Ng7 Ne1 Qg8 Kd2 d3 Qa4 d4 Bh3 Bc2 Rd5 Bb3 Bf5 Bc4 Be4 Rc6 Rf5 Rb1 Rd5 Rbb6 Bf5 Bd7 c8Q Be6 Qb7 Bc8 Kc1 d2+ Kc2 Bb5 Kb3 d1Q+ Ka3 Qf8 Bb1 d3 Bd4 d2 Rf5 Nb8 Kb4 Bc4+ Rb5 Qb3+ Ka5 d1Q Rd5 Na6 Bf2 Ngf5 g7+ Kg8 Ng2 e1N Bd4 Nd3 Ne1 Ndb4 Bf2 Bf1 Bd4 Nd3 Bf2 Kf7 g8Q+ Kf6 Qe6+ Kg7 Qe2 Kh8 Bb8 Qc4 Be5+ Ng7 Bed4 Qa2 Rf5 Qd5 Ne4 Qdf7 Rbd5 Q7g8 Nc5
Nq1nR1Q1/P2rq1n1/5b2/r3bbQ1/3bq3/2N1Nk2/p1rR2R1/1b1BB1K1 b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 f4 e5 Qb3 exf4 Qa3 bxa3 Kf2 Ke7 d4 Kd6 e4 g5 h4 f5 a5 b5 h5 c5 a6 a2 h6 b4 h7 c4 Bd3 f3 Nc3 g3+ Kf1 g4 Rh4 f2 Rh6+ Nf6 Nb1 f4 Rg6 b3 Nc3 b2 Rg7 b1B Kg2 f1Q+ Kh1 g2+ Kh2 f3 Bg5 f2 Bh4 Qe2 Re7 f1Q Re8 Qfe1 Nf3 Nc6 Nd2 Bg7 Bc2 Nh5 Bd1 Bf5 Nf1 Qb8 Ne3 g1B+ Kh1 Be5 a7 Ng7 Bg3 Rf8 h8Q Nd8 Qg8 Qc2 Bf2 g3 Kg2 Qa4 Kh1 Qe2 Be1 Bf2 Kg2 Bf6 Kh1 g2+ Kh2 Bg3+ Kg1 Bc2 Rb1 Bge5 Rb2 Bb1 Rc2 Qd7 Rd2 Qe7 Rc2 Kc7 d6+ Kc6 d5+ Kc5 d7 Kd4 d6 Qf3 Na4 c3 Rf2 c2 Nc3 c1R Rc2 Bf4 e5 Qe4 e6 B4e5 Rf2 Rc2 Re2 Nf7 d8Q Kd3 Qa5 Nd8 d7 Kd4 Kf2 g1B+ Kf1 Qb2 Rg2 Rf7 Qb5 Rc8 Qa5 Rc5 Qb5 Nb7 d8R+ Rd5 Rd6 Nd8 Qa5 Qb8 Rd7 Qa3 Rd6 Rd7 e7 Kd3 Qc5 Bgh2 Qa5 Bd4 Qc5 Bhe5 Qa5 Rc5 Kg1 Rc6 Qad5 Ra6 Qc5 Ra5 Qcd5 Nge6 Qg5 Ng7 Qg8 Qc5 Rf8 Qcb4 e8N Qa3 Rc6 Qe7 Nc7 Bc5 Na8 Bb6 Re8 Bc5 Kh1 Bb6 Ned5 Kd4 Rd6 Bc5 Kg1 Bb6 Nf4+ Ke3 Rdd2 Bbd4 Nb5 Qc6 Nd5+ Ke4+ Ne3 Qd5 Rge2 Kf3 Nc3 Qe4 Rg2#
r2n2b1/P1Q2Qn1/rkbbR1R1/pb3NKB/2q5/2b4B/1N3R1Q/3b1nb1 b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 h5 c4 d5 cxd5 hxg4 a4 Qf6 a5 Qd6 b5 Qd8 b6 axb6 a6 Ne7 Ba3 Ng8 Bb4 Nc6 Bc3 Nb8 Ba5 bxa5 Kf2 Kd7 d4 g5 e4 f5 h4 b5 a7 c5 h5 Kc7 e5 c4 e6 b4 e7 b3 e8B g3+ Kf3 g4+ Ke2 f3+ Ke3 b2 Kf4 g2 h6 f2 h7 c3 d6+ Kb6 d7 g3 d5 c2 d6 c1B+ Nd2 b1B Qe2 Bb2 Rh3 Nf6 Qc4 Be4 Qc1 Nc6 Qd1 Bc3 Ra4 Nh5+ Ke3 Qc7 d8Q Be6 d7 Ng7 Ne2 g1B Qc8 g2 d8R Bg8 Bh5 Bd6 Re8 Nd8 Re6 Bc6 Rh2 Qf7 Rae4 f4+ Kf3 Qc7 Kg4 f3 Nd4 Qf7 Rg6 Qc4 Be2 f1B Kg5 f2 Beg4 Bd3 Qf3 f1B Qf7 Bfe2 Nf5 Bd1 Re7 Qb3 Re5 Bdb5 Bh3 Qc4 Re2 Bgd4 Re3 g1N Ree6 Ne2 Rf2 Ng3 Qcd7 Nf1 Qc7+ Ka6 Rfe2 Bg1 Rf2 Qd5 Nc4 Qe4 Nb2 Qc4 Qcd7 Kb6 Qf6 Bf7 Qde7 Re8 h8Q Bg8 Qef7 Re7 Qe5 Rb7 Qh2 Re7 Qh7 Re8 Re4 Re6 Ree2 Rf6 Re6 Bh1 Re8 Bc5 Qhc7+ Ka6 B5g4 Rb6 Ree6 Bhc6 Bg2 Bd6 B2f3 Bba4 Be2 Kb5 Qh5 Ra6 Qh2 Kc5 Bh3 Bb5 Qcd7 Kb6 Bh5 Bdf3 Qde7 Bd1 Qc7+
n3BRn1/Q3b1bk/3R3q/N3rR1n/q2B1n2/q3P3/rN3K1p/1r1b2QQ b - - 0 1 legal: proof: h4 g5 f4 gxh4 c4 e5 b4 exf4 c5 b6 Ba3 bxc5 e4 a5 b5 Ra7 Bb4 axb4 Bd3 Ra3 Bf1 Re3+ dxe3 Be7 Kf2 Bd6 Ke1 Bf8 g4 f5 a4 Kf7 a5 Kg6 e5 h5 e6 d5 g5 d4 e7 f3 e8Q+ Kh7 b6 c4 b7 c5 a6 d3 a7 c3 a8Q d2+ Kf2 h3 Qa5 c4 Qeb5 h4 Qba4 f4 Ra3 c2 Qa7 c1B Qab3 h2 Qe2 d1Q Qea2 h3 Qa8 c3 Qc4 b3 Qc2+ Q8d3 Qb5 b2 Qa7 Bg4 Qd2 c2 Qba6 Bg7 Qc4 Na6 b8B Nc7 Nc3 b1R Qa5 Na8 Nge2 Rb2 Rg1 h1Q Qe1 Ra2 Na4 h2 Rc3 Ba3 Ba7 c1N Qc6 Be7 Rc5 Qa3 Nb2 Qda4 Nd4 Ne2 Rf5 Bh5 Qb1 Bg4 Nb3 Qg2+ Ke1 Qh3 Bd4 Qh6 Qa7 Bh5 Bg2 f2+ Kf1 Bg4 Na5 Bh5 Be4 Bg4 Kg2 f1N Kf2 Nfg3 Rd1 f3 Rd2 Bh5 Qg1 Nf4 Qcc1 Bg4 Bc6 Ngh5 Be8 Ng2 Kf1 f2 Qc6 Ngf4 Qch1 Bd1 Rd3 Ne2 Kg2 f1R Rd2 Re1 Kf2 Nef4 Rd3 Ngf6 Rd2 Rf8 Rd3 Ng8 g6+ Kh8 Rd2 Rf6 Rd3 Re6 Rd2 Re5 Rd3 Bgf8 g7+ Kh7 Rd2 Bc2 Rd3 Rb1 Rd2 Bd1 Rd3 Ngf6 g8R Bg7 Rf8 Ng8 Bc3 Re6 Rd6 Re5 Bd4
QN1r1n1B/r4q1k/4R1bB/6qq/4R1PQ/3r1N1r/1Q3N1p/2bnKbn1 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 b4 a6 h4 gxh4 e3 Bg7 b6 Bb7 b5 Bc8 b7 Bh6 b6 Bf8 Bb5 axb5 c4 h5 g4 d5 c5 f5 c6 Kf7 c7 Kg7 e4 h3 e5 d3 e6 f3 e7 b4 e8N+ Kh7 Qa4 f2+ Kd2 f1B Nf3 f4 Nh4 f3 Qa6 f2 Qa3 b3 Qa7 b2 Ra3 h2 Ng7 d4 Ra4 Ba3 Ngf5 Nc6 b8Q Nf6 b7 Ne5 Rg1 h1R Ra5 Nfd7 Nh6 Nf3+ Kd1 d2 Rc5 Qg5 N6f5 Rd8 Ne7 Nf8 Re5 Bf5 c8Q Bg6 Re4 Rh3 Nc3 b1Q Nc6 Qbb5 Qc5 Ra7 Qe7+ Kg8 Rg2 Ng1 Nf3 h4 Re6 Qh5 Ne4 Qbg5 Qh2 Kh8 b8B Bb2 Qb4 Kh7 Be5 Ba3 Qa8 Bb2 Kc2 d1R Bh8 Rd3 Nb8 Ba3 Bd2 Bc1 Kd1 Rb3 Nc6 d3 Nb8 Rba3 Bf4 d2 Qb2 Rad3 Qg3 Rh1 Be3 h3 Qh4 Rh2 Kc2 d1N Rg3 Qb5 Bh6 Qbg5 Rg2 Be2 Rg3 f1Q Nf2 Rh1 Nd2 Rh2 Rge3 Rh1 R3e4 Rh2 Nh1 Qf7 Nf3 Bf1+ Nf2 Rg2 Qd4 h2 Qb2 Rg3 Qb4 Ba3 Qb2 Rh3 Qd5 Re3 Kd2 Rc3+ Ke1 Rd3 Qbb5 Bb2 Qa8 Bc1 Qb2
1Qbb2N1/r3n3/1BBr1np1/2Q1PRN1/RK2b3/4b2r/q2Bq2R/n1k3q1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 Ke7 c4 Kd6 h4 Ke5 e4 f5 b6 d5 c5 g3 h5 g6 c6 g2 b7 d3 c7 Kd4 e5 b3 h6 b2 h7 f3 Rh3 f2 Rg3 f4 Rg4 Nd7 b8R Ra7 Rb6 Ndf6 Ra5 Be7 Rg5 f3 Nc3 b1B Be2 f1Q Rf5 f2 Nh3 Qg1 Rc5 f1Q Qb3 Qf8 Qc2 Qf7 Bb2 Bd8 Ra6 Ne7 Ng5 Qff2 Rb5 Kc4 Qc1 d4 Nd5+ Bc2 Rba5 Kb3 Ra2 Qf3 Bf1 Bb1 Qc5 Qe2+ Kc1 Qe6 R6a5 Qa6 Bc3 Qc4 R2a4 Qa2 Ra6 d2+ Kd1 Be4 Rd6 Rf8 h8B Qb5 Bg7 Rh8 Bh6 Qd3 Bf8 Rh3 Rd7 Qdc2+ Ke2 d1N+ Ke1 Ne8 Nf6 d3 Ng8 d2+ Ke2 Nf6 Rd5 Bb7 c8Q Ne3 Qb8 d1R+ Rd2 Qcb2 Bh6 Nc2 Bf8 Na1 Rc2 Re1+ Kd2 Ree3 Bb5 Bc8 Ba5 Ref3 Bb6 Re3 Bc6 Rd3+ Ke2 Rd6 Bh6 Qgd4 Ke1 g1B Rh2 Qg2 Bf8 Kb2 Bh6 Bf2+ Ke2 Bd3+ Kd2 Qg1 Bf8 Qdg4 Bh6 Kb1+ Kc3 Be4+ Kb4 Bd4 Ne6 Q4d1 Bd2 Qe2 Ng5 Be3 Bc3 Kc1 Bd2+
1nKB1q1q/Q1Q2N1n/4kPB1/1bn3R1/r1Br1b2/r2b3N/QpR5/qr6 b - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a5 Qc2 axb4 Qb3 Ra5 Qd1 Ra8 h4 g5 e4 gxh4 a3 bxa3 Rh2 fxe4 Rh3 Bg7 Rh1 Bf8 Ke2 Kf7 Ke3 e5 f4 h5 g4 b5 d4 c5 d6 c4 f5 a2 d5 b4 d7 b3 d6 h3 g5 c3 Nd2 h2 Qg4 h4 Ba3 h3 Qf4 b2 Rc1 a1R Rd1 c2 Ndf3 c1R Bb4 Rcb1 Rd5 R1a3+ Bd3 Nf6 Ba5 Nh7 f6 Ba6 g6+ Ke6 g7 Bb5 Qh6 Qc8 Bd8 R8a4 Qh4 Be7 Qf2 Rf8 g8B+ Rf7 Bb6 Qf8 d8Q Rd4 d7 Bd6 Qc7 Raa4 Kd2 e3+ Kc3 e2 d8Q e1N Bg6 e4 Ne5 e3 Qa7 e2 Qdc7 Nd3 Qa8 Raa1 Qa2 e1Q+ Kb3 Qc1 Ba5 Ra4 Qfa7 Qch6 Bb6 Nc5+ Kc3 Ra3+ Kb4 Qhg7 Ba5 Qh8 Bb6 Rd3 Ka5 Rd4 Ngf3 Bd3 Rc1 h1Q Rc2 h2 Ng1 Bb5 Nh3 Qd1 Qc6 h1B Bd8 Be4 Kb6 Bed3 Qcc7 Qh1 Nf3 Bf4 Ne5 Ne4 Kb7 Nc5+ Kc8 Ra4 Qc4 R1a3 Qa2 Ng5 B8h7 Rd7 Nf7 Qc1 Bg8 Nh7 Rf5+ Rc4 Rg5 Rd4 Rd5 Rca4 Rd7+ Rdc4 Qa1 Rd4 Nd6+ Ke5 Qa2 Ra1 Bc4 Qe1 Bh5 Qb1 Nf7+ Kf5 Rd5+ Ke6 Qb3 Qa2 Bg6 Rh1 Qab7 Rc1 Qa7 Qa1 Qa2 Rb1 Rg5+
1r3nNQ/1n3b2/bBP2qkR/Q7/KQpq2n1/bB4N1/1R1rr3/B2n2q1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 gxh4 c4 e5 Qc2 exf4 axb5 cxb4 c5 d5 Qc4 dxc4 Kd1 h5 Kc2 f5 d4 Kf7 g4 a5 e4 b3+ Kc3 b2 b6 a4 Kb4 f3 b7 h3 g5 h4 d5 f4 e5 a3 d6 h2 e6+ Kg6 d7 h3 e7 a2 c6 f2 Na3 b1N Bb2 f3 Nc2 Nh6 Bg7 Ng4 Na3 Nc3 Nc2 Nd1 Be2 f1Q Ne3 f2 Rb1 a1N Nd5 Nb3 Rb2 Nc5 Nf6 Ra2 Ng8 Qe1+ Bc3 f1Q e8Q+ Qf7 Qe3 Qff6 Qd2 Qd4 Kb5 Q8f6 d8B Nbd7 b8Q Nb7 Bb6 Ba3 Ka4 Nf8 Bf3 Qf1 Ne2 Qg2 Ng3 Qgg1 Rb4 Rc2 Ba1 Rb2 Qc3 Rd2 Rb2 Nd8 Be4+ Kg7 Ne7 Nd7 Bd3 Ba6 Qf4 Nb7 g6 Rb8 Qd6 Nf8 Qa5 Kh6 Nef5+ Kg5 g7 Kg6 Bc2 Qgf2 Rg1 h1B Bb3 h2 Nh6 Bd5 Qdb4 h1R Rg2 Rh3 Rh2 Qg1 Rh1 Bf7 g8Q+ Qg7 Qh8 Qgf6 Ng8 Rhh2 Nh6 Rhg2 Ng8 Rge2 Rh6+
K3k3/bNP2nR1/r1n1Nq2/2r1Bnp1/2bbnRB1/3QQQ2/2q5/3rq1N1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 f5 e4 d5 h4 g5 c4 g3+ Kf3 b3 e5 b2 c5 g2 e6 d3 h5 d4 e7 d2 c6 d3 c7 Ba6 h6 Nc6 h7 Bg7 b6 Bd4 b7 Nh6 b8Q Bc4 Qb7 Nf7 Na3 b1Q Nc2 Ra5 Bb2 Rc5 Be2 Qa2 Qc1 d1Q Qe3 d2 Rb1 Rg8 h8Q Qe1 Rh7 d1R Rg7 Qd6 Qh7 Qf6 Qbb3 Rh8 Qh5 Rh6 Qbd3 Qb3 Bc3 Qa4 Rb4 Rg6 Na1 Qc2 Nb3 Rh6 Na5 Rg6 Nh3 g1B Nb7 Bf2 Ng1 Rh6 Kg2 Rg6 Bg4 f3+ Kh1 f4 Qh3 Bg3 Qhf1 f2 Kg2 Rh6 Kf3 Bh2 Ke4 f3 Qh3 f1N Bb2 f2 Qf3 Rf5 Bc3 Bhe5 Ra4 Ba7 Ba1 Bed4 Bc3 Bdc5 Be5 Bd4 Rb4 Bb5 Kd5 Nd2 Rc4 f1N Ra4 Ng3 Rc4 Bdb6 Re4 Bd4 Rf4 Kd7 e8N Nde4 Nd8 Ke7 Nd6 Kd7 N6b7 Ke8 Ne6 Rg6 Qc3 Be2 Qed3 Rh6 Kc4 Rg6 Kb5 Rh6 Ka6 Bf1 Bd6 Rc5 Be5 Nf5 Qd2 Be2 Qde3 Rg6 Na5 Rh6 Kb7 Rg6 Ka8 Rh6 Qdd2 Bc4 Nb7 Na5 Bd6 Qe7 Nf8 Re6 Qde2 Qf6 Be5 Ra6 Q2d3 Nc6 Ne6
K1krrB1b/2r1r3/NN2qq1n/1n6/Q2rR3/PN3B1R/4r1bp/R3q1Q1 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 Nd2 gxh4 Nb1 d5 cxd5 c5 Rh2 cxd4 Rh3 Be6 Rh1 Bc8 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 b5 g4 f3 e4 f4 g5 h3 d6 h2 Kd5 f2 a3 h4 g6 d3 e5 b3 g7 b4 Bd2 f3 Kc5 b2 Bc1 d2 Ra2 h3 Ra1 b3 Bb5+ Nc6 Qf1 d1R Bd2 Nh6 g8Q Qf6 Kb6 Bg7 Qh7 Bb7 e6+ Kc8 e7 Nd4 e8N Qe6 Qe1 f1Q Bc6 f2 Bb4 Nb5 Nc3 b1Q Bf3 b2 Nc7 Rd4 Qc2 Re8 N3d5 Bh8 Qa4 Qbf5 Na6 b1R Ne2 Qff6 Nc1 Rb2 Bc5 Re2 Nb3 Qg1 Qc1 f1R Qg5 Qf2 Qg1 Rc1 Bb4 Rc7 Bc5 Bc6 d7+ Kd8 Bf8 Qe1 Nab4 Rac8 Ka6 Re7 Nb6 Bd5 Bg4 Bg2 Bf3 Rc5 Kb7 Rce5 Qf2 Rc7+ Ka8 Red5 Na6 Rd6 Rf1 h1R Qg1 h2 Rf2 Rb2 Re2 R6d5 Re4 Re2 Qe3 Rf1 Bh5 Rff5 Bf3 Rg5 Qg1 Rg8 Bg7 Rge8 Bf8 Rc8+ Nb8 Kc7 d8R Rc5 Rd5 Rcd8 Rh5 Rc1 Rh3 Rc3 Nd5+ Kc8 Na6 Rcc7 Nb6+
3q2NB/n4B2/rR1Q1nKb/1pP4n/b1r1nb2/b7/2krN1RQ/1B3b1N b - - 0 1 legal: proof: h4 f5 e4 c5 exf5 a5 b4 axb4 d4 cxd4 a3 bxa3 Qd2 g5 Qd1 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 b5 g4 e5+ Ke4 d5+ Kf3 h5 c4 d3 c5 e4+ Kf4 h3 f3 h4 Rh2 a2 Qd2 d4 Qg2 d2 Rh1 d1B Qb2 e3 Nd2 e2 Rh2 e1B Ke4 Bh6 f4 Ra6 Ne2 Nc6 Rg2 h2 Qc2 h1R Bb2 h3 Bc3 h2 g5+ Kg7 g6 Kf6 g7 Na7 Qb2 Ba4 Rd1 a1B Qa2 Ne7 g8B Bg3 Bf7 Bb2 Ra1 Nd5 Re1 Ke7 f6+ Kd7 Kf5 Kc6+ Kg6 d3 f5 Bgf4 Bd4 Ba3 Ne4 d2 N4g3 d1N Qc2 Rg1 Nh1 Nf2 Rd1 Ne4 Ba1 Nb4 Rd7 Nd5 Rb7 Ndc3 Ba2 Nd5 f7 Ndf6 f8Q Rh7 Rb8 Rd7 Bf7 Rd6 Bc3 Be6 Rb6+ Kd5 Qb2 Rd7 Qd6+ Kc4 Bd4 Kd3 Be5+ Nd5 f6 Bh3 Bd4 Nb4 Ba2 Nd5 f7 Ndf6 f8N Bhg5 Qa1 Bh6 Nh7 Kc2 Qe1 Bg4 Qg3 Bh3 Nf2 h1N Qh2 Nhg3 Nh1 Ngh5 Bf7 Nd5 Bh8 Ndf6 Qe6 Ng4 Nf6 Rd2 Ng8 Ngf6 Qd5 Bhg5 Qd6 Bh6 Rg5 Rg4 Bg2 Nc3 Bgd5 Bf1 Ba2 Rh4 Rg2 Nce4 Nf2 Rh3 Nh1 Rc3 Bae6 Rc4 Bd5 Rcd4 Ba2 Rc4 Bb1+
3r2QN/1K4b1/1nQqR1p1/1B2b3/1N1nrr1R/rR3r2/1q1Pb1Q1/2B1k1r1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 e5 c5 exf4 c6 axb4 axb5 dxc6 Ra4 c5 Ra1 c4 Kf2 Ke7 e4 Ke6 h4 Ke5 b6 Kd4 e5 f5 e6 c5 h5 g3+ Kf3 g2 b7 g6 h6 b3 e7 b2 e8Q c3 h7 c2 Qee2 c4 Qee1 c3 Nh3 g1R Be2 Ne7 Bc4 Bg7 Na3 b1R Ba6 Nd5 Rh2 Nc6 b8Q Qd6 Qc7 Rb4 Qee2 Nb6 Qf7 Rd8 Bb2 c1Q Bd3 Ba6 h8R Rc4 Kf2 f3 Rb1 f4 Rh4 Qc2 Bc1 Qb2 Qd7 c2 Ng5 Rb4 Qee6 Bb5 Bf1 Be2 Nf7 Kd3 Nh8 Re4 Qg8 Nd4 Qc6 Ra6 Nc4 Raa8 Ne3 Ra3 Nd5 Qbb4 Bb2 c1B Qda4 Qc3 Qaa8 Kc2 Nb4+ Kd1 Ba1 Qc2 Rb3 Bb2 Rg2 Bc3 Bb2 Qb1 Bc1 Qb2 Qa6 Nf5 Qaa8 Bce5 Rg5 Nd4 Rf5 Rg3 Rf6 Rh3 Kg1 f2+ Kg2 Rf3 Re6 Ke1 Qab7 Bd1 Bb5 f1R Qe7 Be2 Qg5 Rd3 Kh2 Rg1 Qg2 f3+ Kh3 Ree3 Kg4 f2+ Kg5 Rf3 Kg4 f1R Kg5 Rde3 Kg4 Bf8 Kg5 Bf4+ Kf6 Re4 Kf7 Qd5 Kf6 Bg7+ Ke7 Bfe5 Rh1 Rdf8 Rh4 R8f4 Ke8 Rd3 Ke7 R1f3 Ke8 Qc5 Kd8 Qd6+ Qd7 Na4 Kc8 Nb6+ Kb7 Ra8 Qc6 Rd8 Rc3 Rde3 Rc5 Rb3 Rc3 Ra3 Rb3
1N2r2k/3qr1q1/2q2N2/RqQn2Qb/1pb2P2/bn6/1B2Bq2/1Nb2BRK b - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a5 Qc2 axb4 Qb3 Ra5 Qd1 Ra8 h4 g5 e4 gxh4 a3 bxa3 Rh2 fxe4 Rh3 Bg7 Rh1 Bf8 f4 Kf7 Kf2 Kg7 d4 c5 g4 b5 Kg2 h5 g5 e5 d6 e3 g6 a2 d5 c4 d7 c3 d6 c2 Qd4 h3+ Kh2 h4 Nc3 e2 Nd5 e1Q Ne7 Ba6 Qd1 e4 Be3 c1B Bb6 e3 Qh5 e2 Nf3 Qa5 Qe5+ Nf6 Ng1 e1Q Qc3 Rh7 Qe3 Qf2+ Bg2 Kh8 Bd4 Nc6 Nf3 Qb4 Rd1 Na5 Nd5 Nb3 Nd2 Qe7 Rh1 Re8 d8N Qe6 d7 Qf7 Rb1 a1Q Nc6 Rg7 d8Q Qd7 Rg1 Bc5 Qb6 Rge7 Qa5 Qb2 Ra1 Qc4 Ra4 Ba3 Bc3 b4 Nb1 Qc5 Qg3 Bc4 Nb8 Qb6 Qc5 Qbb5 Be5 Qc3 Ra5 Qa1 Kh1 h2 Bf1 Qe3 Kg2 h1B+ Kh2 h3 Qg4 Bf3 Qg5 Bh5 g7+ Kh7 Bd4 Qd2+ Kg3 h2 Bc3 h1Q g8B+ Kh8 Bh7 Qdb7 Bhd3 Q7d7 Bd4 Qe4 Bc3 Qde3+ Kh2 Q4f3 Bde2 Qef2+ Qg2 Qe4 Kh1 Qee6 Bd4 Qec6 Qg5 Qc3 Qf5 Qcg3 Bb2 Qg7 Qg5 Ng4 Bg2 Ne3 Nf6 Nd5 Bgf1
1nQn1N2/2k1rb1R/2B1n2r/1R5p/2B2PbR/1n2KnN1/qB1Q4/1b3q1b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 e5 axb4 e6 fxe6 Bb2 e5 Bc1 e4 a3 gxh4 Bf4 b5 Bg5 b3 Bc1 b2 Be2 b4 Qd3 b3 Qd1 Bh6 Bf1 Bf4 Rh3 Bd6 Rh1 Bb4+ axb4 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 d5 c4 Kd7 g4 e5 f4 h5 b5 e3+ Ke2 e4 b6 d3+ Ke1 d2+ Ke2 d4 b7 h3 c5 h2 g5 Ra7 g6 Qa5 c6+ Kc7 g7 Be6 Ra4 Rh6 Bh3 d3+ Kf1 e2+ Kf2 e1N Rb4 Ne7 g8B Qa2 Qc2 d1Q Nd2 b1N Nc4 d2 Ne5 b2 Ne2 Nd3+ Ke3 Bf7 Rb5 Qf1 Ng3 d1B Qd2 Nc5 Nd7 Ne6 Nf8 Bf3 Bg2 Bg4 Rg1 h1B Bf3 Na6 b8R Rb7 Ra8 Nb8 Rg2 Ra7 Rh2 Rb7 Rh4 Ra7 Qe1 Nd2 Qd1 b1B Bb2 Nb3 Qd2 Kc8 c7 Nc6 Bg2 Rb7 Ra6 Ncd8 Rc6 Ng5 Rg6 Nge6 Rg7 Ra7 Rbg5 Kb7 c8Q+ Kb6 Rh7 Re7 Qa6+ Kc7 Bf3 Qc1 Ke2 e3 Rb5 Qc4+ Ke1 e2 Kf2 e1N Ke3 Qf1 Bd5 Be8 Bc4 Nf3 Bf7 Bc6 Be8 Bce4 Bd7 Bg6 Bc6 Bf7 Qc8+
r2nB1Kb/NbnN2B1/3Br2R/Pr2n2R/1pR2qrr/2n4Q/3kQ1q1/8 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 Nd2 gxh4 Nb1 d5 cxd5 c5 Rh2 cxd4 Rh3 Be6 Rh1 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 a4 b5 e4+ d3 g5 h5 a5 h3 d6 f3 g6 h2 d7 h4 Ke6 b3 Kf7 b2 g7 h3 e5 f4 e6 f2 e7 f3 e8R Rh4 Bf4 Na6 Ra3 Qc7 Ra2 Ne7 g8Q Nc6 Qe1 Bb7 Qg3 Rg4 Nd2+ Kc3 Re4 b1R Re8 Bg7 Qe7 Nd8+ Kg8 Bh8+ Bg5 Qf4 Nc4 d2 Ra4 d1N Na3 Nc7 Rc4+ Kd2 Rf8 b4 Nb5 Nc3 Rf6 Re1 Rh6 Re6 Bg2 f1R Na7 f2 Bc6 Rc1 Ba4 f1Q Nf3+ Ke3 Bc6 Qg2 Ne5+ Kd2 Rh5 Rg1 Qe8 Rh4 Bh6 Rg4+ Bg7 Rd1 Re1 h1N Ba4 h2 Qh3 Nf2 Rh1 Nd3 Bc6 Nf7 d8B Rg1 Bg5 Nd8 Nd7 Ne5 Be7 Re1 Bd6 Re4 Re1 h1R Re3 Rf1 Rg3 Rh4 Rg6 Rg1 Qe7 Rd4 Rgh6 Rd5 Nb8 Rb5 Be8 Qe2 Nd7 Rgg4 Qf7 Qef2 Qg6 Q2h2 Qe4 Qg2 Qe2+
1B1QqNnr/6P1/R2NB3/1q1b4/2n1r3/Q1Knpb1k/bn1R1Qn1/B4b2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 e5 axb4 e6 fxe6 Bb2 e5 Bc1 e4 a3 gxh4 Bf4 b5 Bg5 b3 Bc1 b2 Be2 b4 Qd3 b3 Qd1 Bh6 Bf1 Bf4 Rh3 Bd6 Rh1 Bb4+ axb4 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 Kf7 c4 Kg6 f4 Kf5 b5 h5 c5 d5 b6 e5 b7 h3 g3 h2 c6 h4 c7 e3+ Kd3 e2 Qc2 Kg4 f5 e1N+ Kd2 d3 f6 d4 f7 h3 f8B e4 Ra6 e3+ Kd1 d2 Qd3 Nd7 b8Q Qe8 Nc3 b1Q Nf3 b2 Ne4 Nb6 Bd6 Nc4 Nfg5 Ng2 Nh7 Ra7 Rg1 h1N Nf8 h2 Qa3 Kh3 g4 Nf2+ Ke2 d1N g5 h1B g6 Be6 c8Q Re7 g7 Nd3 Qd8 Bd5 Bf4 Re5 Nd6 Re4 Qf6 Qc2+ Bd2 b1B Qbd8 Qca4 Bc3 Qab5 Ba1 N1b2 Be5 Ba2 Qf2 Na4 Kd1 Nab2+ Kc2 Nc1 Qff6 d3+ Kc3 d2 Qf2 d1B Bd3 Bh5 Rd1 Be2 Rd2 Bf1 Be2 Ncd3 Bh5 Nge1 Bf7 Bf3 Bg3 Ng2 Be6+ Rg4 Nf5 Rd4 Bb8 Re4 Nd6+
RQ1rn3/p1qb2Pk/R3n1n1/3K4/2QN1r1q/4Nr1n/3Q2rb/B2BB2n b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 f5 Kf3 Kf7 e4 Kg6 g4 d5 b4 h5 b6 h3 g5 d4 b5 d3 b7 h2 e5 d2 b6 h4 e6 c2 e7 h3 e8Q+ Kh7 Qb5 Nf6 Qb3 Nc6 b8B Ne7 b7 Rg8 Nc3 Bd7 Na2 Qc7 Rb1 Ne8 Qb4 Ng6 Ba6 Bd6 Qe1 d1N Bd3 Nf2 Bb2 c1N Be2 Ncd3 Qed2 Nc5 Ra1 Ne6 Nc3 Be5 Bd1 Rg7 Ke2 f3+ Ke3 Bg3 Nge2 Bd6 Re1 h1N Qa4 h2 Qc4 Nh3 Nd4 f2 Ra6 f1R Ba1 f4+ Ke4 f3 Nd5 f2 Ne3 Ne7 Qd5 Nhf4 Nb3 Qd8 Nc2 Nc5+ Kd4 Nc7 Nb4 Ng3 Nc2 h1Q Ra5 Qh4 Re6 Nh1 Ra6 Nh3+ Qe4+ Rg6 Ne3 Bh2 Reb6 Ne8 Bg3 Rb8 Ke5 Qc8 Qc4 Ne6 Nd4 Qc6 Rb5 Rd8 Rc5 Qb6 Rc8 Qc6 Ra8 Qc7+ Rd6 Rg1 b8Q f1R Bh5 Rg8 Bd1 Rf4 Be1 Rg2 g6+ Kh8 Bf2 Rf3+ Bg3 Rgf8 g7+ Kg8 Nf1 Ng6+ Kd5 R8f4 Ne3 Kh7 Be1 Bg3 Rb6 Bh2 Ra6
2bQq3/B1r1R1kN/1Q6/RN2Knbr/1nprB1P1/R1qr3b/q3B3/3b4 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 Kf2 f5 Kf3 Kf7 e4 c5 g4 h5 d4 b3 e5 h3 e6+ Kg7 b6 b2 d5 h4 d6 c3 e7 c4 e8B h2 b7 h3 d7 c2 Ne2 Na6 b8R Rh5 Bf7 Nh6 Qe1 Ra7 Rb6 Be7 Rg1 h1B+ Rg2 h2 Bg8 Bg5 Rb7 Nb4 Na3 b1Q Qd2 Qe8 Nd4 Qa2 Rb6 Rc7 Bb2 c1R d8Q Rc3+ Qe3 Rb3 Nab5 Rd3 Nc6+ Rd4 Ne5 Rd3 Bd5 Rd4 Kf2 f3 Kg3 f2 Be2 f1Q Be4 Qc1 Nf7 Qc3 Re6 f4+ Kf3 Nf5 Bc1 Bh4 Ng5 Rd3 Nh7 Bg5 Rb1 Rd4 Rb3 Rd3 Ra3 Rd4 Kf2 f3 Rg1 Rd3 Qb6 Bg2 Rf1 h1R Be3 Bh3 Ra1 Rhd1 Ra5 Rd4 Ra3 R1d3 Ra5 Nh6 Kg3 f2 Ra3 f1B Kf3 Bh4 Kf4 Nf5 Ke5 Bg5 Ra5 Bfg2 Bf2 Bf3 Bg1 Qab3 R1a3 Qa2 Bf1 Kg8 Qb7 Bd1 Be2 Kg7 Be3 Rdd7+ Bd4 Qcb3 Ba7 R7d4 Qb6 Qc3 Re7+
1q1q3n/1b1bn1rQ/n3QNq1/kQRp4/2b3r1/1n2N2K/3R2P1/qB2BB2 b - - 0 1 illegal: No possible last move, all moves rejected
6rq/5n2/P2QqQ1n/BqNn2Rk/1rn1N3/1NQ2BR1/b4p2/q1r1b2K b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 Nd2 gxh4 Nb1 d5 cxd5 c5 Rh2 cxd4 Rh3 Be6 Rh1 Bc8 Kf2 b5 e4 f5 g4 Kf7 Kg2 Kg6 a4 h5 g5 b3 a5 d3 a6 b4 e5 d2 e6 f3+ Kh2 b2 d6 h3 e7 f4 e8N f2 d7 h4 Nc3 b1N Na2 b3 Qe1 d1N Qe6+ Qf6 d8Q b2 Qf5+ Kh5 Nb4 f3 Qdd5 Ne3 Qa5 Nd5 Qd8 Be6 Nc7 Nd2 Bg2 b1Q Ne8 f1Q Nd6 f2 Ne2 Nc4 Ra3 Qba1 Nd4 Nc6 Bd2 Nh6 Ne4 Rg8 Qd6 Nd8 Nd3 Ndf7 Rg1 Rb8 Nb3 Rb4 Kh1 h2 Ndc5 Bg7 Qfe5 Qg6 Qf4 Bc3 Qf6 Qf5 g6 Qe2 Bg5 Be1 g7 Qeb2 Bf3+ Qg4 Rg3 Qe5 Kg2 h1R Ra4 Rf1 Bd2 h3+ Kh2 Rg1 Qf8 Qb8 Qd6 Qb5 Qc3 Rg2+ Kh1 h2 Bd1 Rc8 g8Q Rc7 Qgd8 Qe2 Re3 Rg8 Rg3 Rc8 Ra3 Rc7 Rg4 Qe3 Bf3 Rc6 Kg2 Qe2 Qdf6 h1Q+ Kg3 Qh4+ Kg2 Nfe5 Qd4 Ncb6 Nc3 Nf5 Nb7 Rbc4 Be4 Nf7 N3a5 Nc7 Qg7 Qf6 Kh1 Qh6 Qgf6 Qh8 Bg2 Qee5 Ne4 N5h6 Rag3 Ra4 Qe3 Ba2 Bf3 Rc1 Nb3 Qe6 N7c5 Ncd5 Ba5 Nc4 Qec3 Rb4 Rg5+
2N1nq2/Pnb1r3/1R1Qnq1B/k1B2qQ1/1p2R3/2b2Q1r/K1b1Nq2/nN6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 e4 Kd7 a4 g5 d4 c5 Kd2 Kc7 Kc2 Kb6 Kb3 f5 h4 f4 d6 g4 d7 c4+ Ka2 c3 d5 f3 d6 b3+ Ka3 f2 h5 f1Q e5 b2 e6 c2 h6 Qff6 e7 Ra7 e8Q Nc6 h7 Na5 Nh3 g1B Qh5 g2 Bh6 c1N Nc3 b1Q Bg7 g3 Nb5 Bd4 Nf4 g1Q Qdf3 g2 Nc3 Ncb3 Nfe2 Qf2 Re1 g1N Bh6 Nh3 Qg5 Qbf5 Ka2 Nf4 Rab1 Ne6 Rb2 Qe8 Nb1 Bc3 d8B+ Ka6 d7 b5 Be7 Nb7 d8N Ka5 Bc5 Na1 Nf7 Bd6 Rb3 Bf4 Nd6 Qef8 Rb4 Bd7 Nc8 Bc7 Re4 b4 Rf1 Ka6 a5 Ba4 Rd1 Kb5 a6 Bc2 Rd6 Ka5 Rc6 Q6d4 Rb6 Nf6 Nd2 Ne8 Nb1 Rg8 h8Q Qdf6 Qhg7 Rh8 Qe7 Rh7 Bg7 Rh3 Bh6 Ra8 a7 Rb8 Nd6 Rd8 Nc8 Rd7 Qd8 Re7 Qd6
K5nb/n5N1/b1Br1k1n/N3b3/2r3Qp/3N1bb1/BPQbR3/R1Rq2n1 b - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 b5 axb5 g5 Bd2 gxh4 Bc3 dxc3 Ke2 Kf7 Ke3 d5 Kd4 e5+ Ke3 a5 g4 h5 f4 a4 b6 a3 b7 c2 g5 c1B+ Nd2 h3 f5 a2 g6+ Kf6 g7 h2 c5 h4 c6 d4+ Ke2 d3+ Ke3 Rh6 c7 Bd6 Qf3 Nc6 b8N Na7 Bg2 Ba6 Nc6 Rc8 Rb1 a1N Qh5 Nb3 Na5 Nd4 Nf3 Ne2 Ng5 Ng1 Qg4 Qd7 Ne6 Qa4 Ra1 Qd1 Bf3 Rg6 Kf2 e3+ Kg2 e2 Ndc4 e1B Bc6 e4 Ne5 d2 Nd3 Re8 c8Q e3 Qc7 e2 Qc8 Be5 Qc7 Nh3 Kf3 Rc8 Ke4 B1g3 Kd5 e1B Kc5 Ng1 Kb6 Nh3 Rf1 h1B Rf2 Bf3 Re2 Nh6 g8B Ng1 Bf7 Ng8 Ng7 Rh6 Ba2 Rg6 Bb5 Rh6 Qc2 Rc4 Ba4 Bef2+ Nc5 Bfd4 Bc6 Bc3 Nd3 Rh7 Ne6 Rd7 Ng7 Rd6 Kc7 Qf1 Kb8 d1N Ka8 B1d2 Rc1 Ne3 Ra1 Qd1 Rc1 Kf7 f6 Nf5 Ra1 Nfh6 Rc1 Kf8 f7 Ke7 f8R Bd4 Ra1 B4c3 Rc8 Kf7 Ne8 Bh8 Ng7 Bce5 Re1 Kf6 Re8 Qe2 Rec1 Qd1 Re7 Bef4 Re1 Be5 Re2
3Bb2b/Qbr2bPR/2b5/BbNB4/2Q3n1/p2Nq3/3rRnKb/Rk1b4 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 Ke7 e4 Ke6 b4 Ke5 g4 d5 g5 h5 b6 a5 b5 f5 b7 d4 g6 h3 b6 h4 Ra2 f3 Qb3 c2 Bb5 f4 Bf1 h2 Bd2 c1B Ra3 h3 Bc4 d3 Ra2 Kd4 e5 a4 e6 a3 e7 Nf6 e8Q Nbd7 b8B Bg7 b7 Ng4+ Kf1 f2 Bd5 Qe7 Qb6+ Nc5 Be1 d2 Be5+ Kd3 b8R d1B Bb2 Kc2 Qbd8 Be6 Qb5 Nd3 Qbe8 Bf7 Qg8 Rh7 Qh8 Qe3 Qhe8 Bh8 Rb6 Ra4 Rd6 Rd4 Qe6 Be8 Qec8+ Rc7 Nc3 Bd2 Na4 Kb1 g7 Bb4 Rd7 Bd6 Ne2 Be5 Rg1 h1B Nc5 h2 Ba5 Be4 Qg5 h1B Qe7 B4g6 Ba1 Bgf7 Nc1 Bhf3 Rh1 Be4 Bb7 Bc6 Rh7 Rd5 Kg2 f1B+ Kh1 Bd6 Bf6 Ndf2+ Kg1 f3 N1d3 Bg2 Rd8 Bed7 Re8 Bh1 Kf1 Bh2 Ba8 Rd4 Qa6 Bb7 Qc4 B7a4 Qd7 Rd6 Bd8 Bb5 Ne5 Rd2 Re6 B7c6 Qe7 Bce8 Bd5 Bbc6 Qd7 Nh3 Re7 f2 Ned3 Bb7 Be6 Bhc6 Bd5 Bg8 Kg2 f1B+ Kh1 Bfe2 Kg2 Bgf7 Re5 Nhf2 Re7 Bda4 Re5 Bed1 Re4 Qg5 Re2 Bab5 Qe7 Rc8 Qc7 Qe3 Qb6 Rc7 Qa6 Bg6 Qa7 Bgf7 Ra1+
Bn3Q2/4N2b/PN1p3q/6n1/q1R1q1nk/n1B2Rn1/K2QRr2/1r1n1N1n b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Ke7 c4 f5 Kc2 b5 Kb3 h5 e4 h4 a4 d6 e5 f4 c5 d3 c6 g2 e6 f3 a5 g3 g6 Kf6 a6 d2 e7 Kg5 e8Q f2 g7 h3 c7 h2 Qe4 Qf8 Ra4 Nh6 g8N Ng4 Ra5 Bf5 c8R Kh4 Qee1 Qh6 Rc5 Bh7 Ka2 b3+ Ka3 b4+ Ka4 b2 Rc8 b3 Ne7 Rf8 Nc3 b1N Rc4 b2 Kb3 Na3 Na4 b1Q+ Bb2 Qe4 Qf3 d1N Ne2 g1N Ka2 g2 Qd2 Nh3 Rf5 g1Q Ng3 Ng5 Bg2 f1N Bc3 Qgd4 Nb6 Rf7 Rg1 h1N Qff2 Rf6 Bf3 Ra7 Rg2 Rb7 Rf4 Qed3 Bc6 Q3e4 Qf3 Rf5 Re2 Rf8 Qf2 Rf7 Rf3 Rf4 Na4 Rb1 Nb6 Rf6 Ba8 Rf5 Rc6 Qa4 Rc4 Rf6 Nh5+ Nfg3 Qf1 Nf5 Ng3 Rf7 Qf2 Rf6 Nf1+ Nfg3 Qfd4 Rf5 Qh8 Rf7 Qf8 Rf5 Rd3 Rf2 Rf3
nN3rrR/1Q2rQp1/3B3N/2K2P1B/1rbR1q2/bB4k1/3r2q1/1r1b1r1Q b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Nc6 Bc1 Na7 Nh3 axb4 Ng1 b3 Na3 b4 Nb1 Nb5 axb5 Ra5 Ra3 Ra6 Ra1 Ra8 Ke2 Kf7 f4 Kg6 h4 Kf5 c4 d5 h5 e5 c5 e3 Kd3 e4+ Ke2 g3 c6 Kg4 c7 d3+ Ke1+ e2 Kd2 b2 Ke3 d2 Kd4 e3 h6 g2 h7 b3 f5 Be6 c8B Kg3 b6 e1R b7 e2 b8Q+ Qd6 Ra2 Ne7 Nf3 Rg8 h8Q g1R Qc2 d1R+ Nbd2 Qf4+ Qe4 b1Q Ng5 b2 Qc7 Qc2 Ra4 b1R Nf7 Rb5 Ba6 Nc8 Ba3 Nb6 Qh5 Re8 Qb7 Na8 Rh2 Rdb1 Nc4 Rg2 Na5 Be7 Rh4 Ref8 Nc6 Rec1 Bb4 e1R Nb8 Re3 Bd3 Rf1 Bc4 Bd6 Bb3 Ree1 Bd2 Ba3 Bb4 Re3 Bd6 Rge2 Rc4 Rb4 Kc5 d4 Qec6 d3 Qh1 d2 Bb5 d1B Be8 Qe4 Rd4 Bc4 Rh2 Qg2 Qg6+ Kf2 Rh8 Rd2 Nh6 Re7 Qe6 Kg3 Bh5 Qf3 Qf6 Qg2 Qf7
rRQ5/NbQ3b1/3NB2P/2r3q1/4b2q/1Rpr1Bn1/1NbB2q1/K1kbb3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Kd7 a4 Kd6 d4 f5 Kd2 g5 Kc2 b5 Kb2 c5 h4 f3 d5 Ke5 a5 g3 a6 b3 h5 f4 d6 b4 d7 g2 a7 f2 h6 g4 Nc3 f3 Be3 g3 Rc1 Bb7 Bd3 f1Q Nh3 g1B Qe1 g2 Nd5 c3+ Kb1 c2+ Kb2 f2 Ng5 c4 Bc5 Ne7 Be2 Na6 Nc7 Kf4 e5 Nf5 e6 Ng3 e7 Bg7+ Bd4 Nc5 e8N Nce4 Nf6 Nd2 Rb1 c1R Bc3 Ke3 Nh3 Re8 Ne4 Qh4 Nb5 Red8 Ka1 b2+ Ka2 Bh2 Ned6 g1Q Nf4 Qfg2 Nd3 f1B Bg4+ Be2 Be6 Rc2 Qf1 Bd1 Qf7 Ke2 Bd4 b3+ Ka3 Rc3 Be3 Rdc8 d8Q Rc5 Bg5 Qe3 Qfc7 Bg1 Qdd7 Bf2 Rh3 Be1 Qdc8 Qe5 Be3 Qeg5 Ra1 b1B Kb2 Bbc2 Rb1 Qf5 Ka1 Qfg5 Nb2 Bce4 Na4 Kd3 Nb2+ Kc2 Bg4 Rd3 Be6 Rb8 a8B c3 Na7 Nf5 Rf3 Ng3 Q8d7 Rg8 Rf8 Rh8 Rb8 Rg8 Na4 Rd8 Rb2+ Kc1 Qdc8 Rh8 Ra2 Re8 Ra3 b2+ Ka2 b1B+ Ka1 Rd8 Nb2 Bed5 Q8d7 Ba6 Rb4 Rc8 Rab3 Bbc2 Qe8 Rb8 Qec8 Bc6 Bb7 Ra8 Rb6 Bd5 Bc6 B5f3 Rb8 Bb7 Be4 Bg4 B4d5 Bf5 Bf3 Bfe4 Bxd2+
5BQ1/kNNb1K1P/q1N2nQr/b5qr/b2Rr2R/3pb3/2r2B2/b1Q1q3 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 Nh3 h5 Qd3 f5 Qd1 f3 Ng1 f4 Bh3 Nc6 Kf2 Nce7 Ke1 Nf5 gxf5 Bc5 Bg4 hxg4 Qd2 Be7 Qd1 Bf8 Kf2 b5 h4 d5 e4 Kd7 a4 Kc6 c4 Kb6 f6 g5 c5+ Ka7 c6 d3 e5 d2 e6 b3 a5 d4 a6 b2 c7 g3+ Kf1 g4 e7 b4 e8N f2 Ke2 f1R Kd3 b3 Kc4 f3 h5 f2 f7 g2 h6 g3 Nd6 Nf6 Qe2 d1B Nh3 g1B Qc2 g2 Nf4 Bg7 f8B Bd7 c8Q Re1 Ne6 Re4 Nd2 b1R Nb7 b2 Nc7 f1Q+ Kc5 Rh7 Kd6 Be3 Nf3 g1B Ra4 d3 Qc6 Qe1 Rd4 Ba4 Ne5 Rh8 Bd2 Rc1 Rh4 b1Q Bb4 Rc2 Bc5+ Qb6 h7 Rg8 Rc4 Bd2 Bf2 Ba5 Rd4 Bh8 Bh6 Rg5 Bf8 Ng4 Kd5 Rh5 Qg6 Qb5+ Kd6 Qg5 Nc6+ Kb6 a7 Qa6 Ne7 Nf6 Nc6 Rb8 a8Q Rh6 Bg3 Be3 Bf2 Bg7 Qce8 Rd8 Qc8 Bh8 Qe6 Re8 Qd5 R8e5 Qdg8 Rb5 Ne5 Ka7+ Ke7 Rd5 Kf7 Qg2 Ng4 Rdh5 Ne5 Qg5 Nc6+ Kb6 Ne7 Ka7 Ne6 Rb2 Rd6 Ne8 Qc1 Rc2 Nc7 Ba1 Rd4 Nf6 Nc6+
B1N2qn1/5qqP/p6b/1n1B1Q1N/3R3n/kBN2R1b/5Q2/Knrq2bq b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 Na3 h6 Rb1 a6 Bg5 hxg5 Ra1 f4 Nb1 Ra7 Ra3 Rb7 Ra2 Rb5 Ra1 Rf5 gxf5 Rh3 Bg2 Rh4 Bf1 Rh8 Kd2 Ke7 Kc1 Kd6 e4 Kc5 c4 Kb4 h4 d5 c5 g4 f6 g5 h5 d3 e5 f2 h6 g3 f7 d4 h7 f3 e6 g4 c6 a3 e7 g2 e8B a2 c7 g3 Rh3 Nc6 Qe2 Na7 Ba4 Nb5 Nc3 d2+ Kc2 d1N Bb3 Bh6 f8Q+ Qe7 Qf5 Qg7 Qe1 Qf7 Bfc4 f1Q Bd5 f2 Nge2 g1B Nf4 g2 Rf3 d3+ Kc1 Bd7 c8B d2+ Kc2 Qf8 Nh5 Qc4 Qe2 f1Q Qf2 Qg4 Bcb7 Qgg7 Rb1 a1Q Ba8 Qff7 Rc1 Qa3 Kb1 Qe1 Qa7 Qh4 Qf2 Qh1 Qf6 Bh3 Qf5 Qa5 Rc2 Qd8 Ka1 Qdf8 Rc1 Ne3 Re1 Nc4 Re8 Nca3 Re4+ Ka5 Rd4 Nb1 Bbc4 Kb4 b3 Ka3 b4 Nd6 b5 d1Q b6 Nb5 b7 Bh2 b8N g1N Rg3 Nf3 Bb3 Bg1 Nc6 Nh4 Ne7 Q8e8 Rg2 Nf6 Ne2 Qb8 Rg5 Rc8 Rg3 Ng8 Rf3 Rc1 Nc3 Qbf8 Nc8
1n1qqQ2/n2qp3/1P2N2R/1BB2K1k/n1b3rb/4R3/3bBnR1/3Nn1bQ b - - 0 1 legal: proof: g4 a5 a4 b5 e4 bxa4 d4 c5 h4 cxd4 f4 f5 g5 fxe4 h5 g6 Rh2 Ra6 f5 gxf5 Rh1 Rg6 hxg6 f4 Kf2 d5 b4 h5 c4 e3+ Kf3 d3 b5 h4 g7 Kf7 c5 Kg6 b6 e2 c6 e1N+ Kf2 d4 c7 f3 Rh2 h3 Kg3 d2 Kf4 f2 Ra2 d3 Bg2 f1Q+ Ke5 a3 Bc6 a4 Bd7 Ba6 c8Q Rh4 Rf2 h2 Qdc2 h1N Q2c5 d1Q Nd2 Kh5 g6 Rg4 Bc6 Bc4 Rf4 Nf6 g8B Nf2 g7 Ne8 Nb3 d2 Bb2 Nd6 Rf3 Nb5 Kf5 Na7 Bb5 Qh3 Ne2 Qe8 Ra1 a2 Nc3 a3 Rc1 a1B Nd4 a2 Ba3 Bb2 Q5c6 a1B Bc5 Ba3 Be6 Bb4 g8R Bh6 Q6b7 Bg5 Re3 Bh4 Qh1 Ba5 Bd5 Bb2 Bf3 Ba3 Bd6 Bc5 Ne6 Bd4 Be2 Bc5 Re5 Qd3+ Re4 Qa4 Rg6 d1N Rc2 Nb2 Nd1 Bd2 Qd8 Bce3 Bc5 Qdd7 Qc8 Qdd8 Rf6 Bd4 Re3 Qed7 Ba6 Qac6 Bb5 Na4 Ra2 Q8c7 Qf8 Qcd8 Raa3 Qcc8 Rg3 Q8e8 Rg2 Qcd8 Rc3 Be5 Rd3 Bh2 Re3 Bg1 Rh6#
Q3BnB1/3RpnnP/6BN/1N3Nr1/2k2b2/Q4qn1/KRq1r2q/1n1r2q1 b - - 0 1 legal: proof: d4 a5 g4 c5 f4 cxd4 e4 f5 b4 fxe4 f5 axb4 Bf4 h6 Bg5 hxg5 Bd3 b6 Bf1 Ba6 f6 Bc4 Bg2 Be6 Bf1 Bf5 gxf5 Rh7 Nc3 Rh3 Nb1 Rh8 Kd2 Kf7 Kc1 d5 Kb2 b3 h4 e3 c4 g4 a4 g5 a5 d3 c5 b5 a6 d2 h5 d4 h6 d3 h7 e2 c6 e1Q a7 b4 c7 g3 c8B g4 Ba6 g2 Nf3 g1N Rh6 g3 Bb5 g2 Qc1 d1R Rh5 d2 Bd7 Qh4 Nc3 Qh2 Kb1 b2 Nd5 Ne2 Nc7 g1Q Ra6 Nh6 Rb6 Ng3 Bd3 Rg8 Nb5 Rg5 Ka2 b1N Nfd4 Bg7 Bc2 Qf8 Qa3 Bh8 Bc6 Nd7 Rb7 Rd8 a8B Re1 Ra7 d1N Bd5+ Re6 Bac6 Ne3 Rh4 Bg7 Rf4 Bh8 Rf2 Bg7 Bd3 Bh8 Rb2 b3+ Ka1 Nef1 Rc7 Nh5 Bc2 Ng7 Bce4 Ne5 Rd7 Ng6 Bd3 Ng3 B3e4 Ke8 Bc2 Re2 Bg8 Qf7 B2e4 Qd5 f7+ Kf8 Bd3 Qf3 Bc2 Ne8 B2e4 Be5 Bd3 Kg7 f8N Kf6 Nfe6 Nf8 Ng7 Bf4 Bde4 Ke5 f6 Nf7 Ngf5 Ng7 Nh6 Qe1 Bg6 Qeg1 Ndf5 Ke6 Rb7 Rd1 Be8 Kd5 Rd7+ Kc4 Rbd2 b2+ Ka2 Re6 Rg2 Nh8 f7 Re2 Rf2 Re5 Qe3 Nd2 Ng4 Nfe6 f8Q Nf7 Qa3 Re4 Ngh6 Re5 Rd8 Re4 Bd7 Re3 Qe8 Nf8 Bc6 Re4 Rd5 Re5 Qea8 Re6 Be8 Re5 Qe3 b1Q+ Ka3 Qbe4 Ka2 Nb1 Rb2 Qec2 Qea3 Re2 Rd7
bk1K3b/RN1Pr1p1/n1r1b3/B1N1q3/3B1RQ1/2q1r3/2b3Nb/r2Q1q1B b - - 0 1 illegal: Other
3B2n1/1Rp4K/1P6/pk1r1R2/1rR4B/q2nb1r1/Q2QN1bq/Bb1N2nq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 Kd7 Ke2 f5 Ke3 g5 h4 a5 d4 g4 Kf4 c3 b4 c2 e5 Ra7 h5 Bb7 b6 Kc6 h6 Ba8 h7 Nd7 b7 Qe7 b8R Nc5 e6 Rb7 d5+ Kb5 Ne2 g1Q d6 g2 d7 g3 d8B Qh2 Ra4 g1N Qd2 Bh6+ Ke5 f4 Kf5 g2 Kg6 Qf8 e7 f3 Ba3 c1Q e8Q+ Kc4 Bh4 f2 Qe6+ Kb5 Qea2 f1B Bb2 Qe1 Bbf6 Be3 Bd8 Qf3 Kg7 Nd3 Kg6 Qc1 Kg7 Qa3 Nbc3+ Ka6 Nd1 Kb5 Kg6 Rb6+ Kg7 Bd5 Rb7 Qh5 Qac2 Ba2 Qb2 Bb1 Qa2 Qd6 Rh3 Qh2 Rf3 Qh1 Bg3 Q5h2 Bgh4 Ne7 Rf6 Rf8 h8B Ng8 Rf4 Rf5 Kh7 Rd5 Rf3 Nh3 Rf6 g1R Rf5 Rg3 Ba1 Bg2 Qe1 Kc6 b5+ Kc5 Qf2 Ng1 Qf4 Rf6 b6 Kb5 Qd4 Re6 Rc4 Re4 Qc3 Reg4 Qcd2 Rd4 Rc6 Rb4 Rc4
b1NQ4/qk4pR/3r1nBp/PN1R1K2/2r1R3/Q1r2n2/Br2br1n/Q3b3 b - - 0 1 legal: proof: c4 d5 g4 a5 h4 e5 b4 axb4 d4 f6 g5 fxg5 Bb2 gxh4 cxd5 h3 d6 Kf7 d5 Ke8 Bd4 exd4 Kd2 Kd7 Kd3 c5 Ke4 b5 a4 d3 f4 d2 f5 h6 a5 c4 f6 c3 f7 b3 e3 b2 Qb3 d1R Bg2 b4 Na3 b1R Bf1 c2 Qc3 c1R Ne2 h2 Nb5 b3 Na7 b2 Ra4 Qb6 Kf5 Nc6 e4 Ba6 e5 Rc8 Re4 Nf6 Nd4 Be2 e6+ Kd8 d7 Kc7 d8Q+ Kb7 e7 Ne5 e8B Bb4 f8Q Neg4 d6 Rc4 Qa3 Be1 d7 R1c3 Ndb5 Rd6 Nc8 Qa7 Bg6 Rg8 Qfe8 Rf8 Qe5 Rf7 Rg1 h1B Bh3 Nh2 Rg5 Ra1 Qd4 Ra2 Qd1 Rf8 Qa1 b1N Bg4 Rb2 B4h5 Bh4 Bf7 Nd2 Bhg6 Ndf3 Rh5 Rcc6 Ba2 Rf7 Qf8 Bg3 d8R Be1 Qe7+ Rc7 Rh8 Rf8 Qe8 R7c4 Rh7 Nh4+ Ke5 Nd5 Bf7 Ka8 Bg6 Rf2 Rf4 Nf6 Qd8 Bb7 Re4 N4f3+ Kf4 Kb8 Rf5 Ba8 Rd5 Kb7 Kf5
1r3Nb1/B3p3/1nQ1b2K/Pbr4p/1Bnb3k/1Qr1Q1N1/2Bn2R1/q1b3R1 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 h4 g5 b4 axb4 Bd2 gxh4 Bc1 d5 cxd5 c5 Qc2 cxd4 Qa4+ Kf7 Qd1 Ke8 Kd2 Kf7 f4 Kf6 a4 b5 g4 h5 a5 d3 Ke3 h3 d6 h2 d7 d2 f5 Kg5 f6 b3 f7 b2 Qa4 d1N+ Ke2+ e3 Kf3 b4 Ke4 b3 Bd2 Kh4 Kf5 e2 Kg6 e1B Ra2 Bh6 f8B Ne3 g5+ Nc4 Bb4 Bf2 Nd2 b1R Ne2 b2 Qc2 Bd4 Rg1 h1B Ne4 Rc1 Bg7 b1B Nf6 Bd5 Nh7 Nf6 Nf8 Ne4 Ng3 Bg8 Bd3 Ned2 Bf5 Qc7 d8Q Qe5 Qb6 Bce6 Qc6 Qe1 Qd3 Nd7 Qe3 Rc3 Bc2 Ndb6 Be5 Ra7 Bb8 Rc7 Rb2 Ba2 Ba7 Bb3 Ra2 Qa1 Rb2 Bd7 Ra2 Bge6 Rb2 Rg8+ Kh7 Rc8 g6 Rb8 g7 Bf4 Qd5 Bb5 Kg6 Rh8 g8Q Rc8 Qf7 Rc5 Qc6 Bg5 Nd7 Rb8 Nf8 Na3 Qff3 Bg8 Ra2 Bbe6 Qfd5 Bf4 Qb3 Nac4 Be4 Nb1 Rag2 Bh6 Bc2 Bg5 Qf2 Bc1 Qe3 Nbd2 Kh6
Br4Bq/2r3qN/3nR3/2k1qb1B/nqp1q3/1Q1R1r1b/PR3p2/1Q4NK b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 g5 Nc3 g4 Nb1 dxc6 Nh3 c5 Ng1 c4 h4 g3 Bb2 Qg5 Bd4 Qh5 Be3 Bh6 Bf2 Bg5 hxg5 Qg4 g6 Be6 Qb3 gxf2+ Kd1 Qh3 g4 Qg2 g5 Qd5 Kc1 Bc8 Qd1 Qd8 e4 Kd7 d4 Kd6 Kd2 h5 Ke2 f5 Kf3 c5 Kg2 b5 d5 c3 g7 f3+ Kh2 f4 g6 b3 Nh3 c4 e5+ Kc5 d6 b2 e6 b4 e7 b3 e8Q h4 d7 c2 Qe4 c1Q Be2 f1R Qdd3 f2 Qg3 f3 Qgg4 Qc7+ Nf4 h3 d8R Qe3 Qee6 Ne7 g8B Na6 g7 Nf5 Bd3 Rh7 Qgg6 Nd6 Nd2 b1Q Nh5 b2 Be2 Qbe4 Nf6 Rb8 Re1 b1Q Qe7 Qa7 Qb7 Bf5 Bd5 Qb4 g8B Rc7 Nh7 Q3d4 Rg1 Qde5+ Kh1 h2 Bd1 Kd4 Qb6+ Nc5 Ba8 Qab7 Qb5 Na4 Be2 Qa7 Rb1 Qab7 Rb2 Qa7 Qb7 Kc5 Rd7 Ra1 Rc1 f1B Re1 B1h3 Rd8 f2+ Nf3 Rc1 Qg1 Rc3 Bd1 Qba5 Qb3 Q5b6 Re3 Qb4 Re8 Qab7 Rd3 Qa7 Re6 Qab7 Qg2 Qa7 Ng1 Qab7 Rd4 Rf3 Qg6 Bfg4 Qh6 Rff7+ Nf3 Rcd7 Qc1 Bf1 Ng5 Rf4 Rdd2 Bf5 Rd3 Rg7 Qa1 Qe7 Be2 Q7f6 Qc1 Rc7 Qb1 Qg7 Bd1 B1h3 Be2 Bhg4 Kg2 h1Q+ Kg3 Qhh7 Kg2 Qhh8 Nh7 Bh3+ Kh1 Qe3 Ng1 Q3d4 Kh2 Qde4 Bh5 Rf3+ Kh1
5r2/n1r3qR/KR1qb2n/1R1Qn1r1/1pB1B3/3p2n1/P2b1n1B/1N2kQ1N b - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 g5 h4 gxh4 exf5 a6 b5 axb5 Qd3 bxc4 Qd1 c3 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 f4 h5 g4 e5 f6 d5 f5 c2 g5 d3 g6 d2 g7 Ke3 f7 Kf2 f6 h3 Na3 h4 Bb2 c1R Qh5 d1N Qf5+ Ke1 Rb1 d4 Bc4 h2 Qc2 e4 Qb3 d3 Be5 h3 Bc7 e3 Bd6 e2 Qa4 Nh6 g8B Ra5+ Kb4 b5 Rb3 Nf2 Bd5 Rc7 Nb1 Be6 Be4 Nc6+ Kc5 Qe7 Kb6 Na7 Qc4 Qd7 Bf4 Bb4 f8R Qg7 f7 Bd2 Rb8 Nfg4 f8Q Ne5 Qd5 b4 Rc3 Rac5 Ka6 Rb5 Qf5 Rbc5 Bf7 Rf8 Rb6 Ng6 Be8 Ng8 Qc6 Kd1 Qd6 e1Q Qde5 Qg3 Bb5 Ke1 Ra3 Rd5 Ra5 Rdc5 Qd4 Re5 Qf7 Rg5 Bd6 Q3e5 Bc4 Qc5 Bf4 Ne5 Qd5 Qd6 Ne2+ Kf2 Rd1 h1N Ng3 h2 Rg1 Bd7 Rb5 Be6 Rg2+ Ke1 Qf6 Rb7 Qf5 Rc7 Qh3 Nf2 Qf5 h1N Rh2 Nfg4 Rh7 N8h6 Qf6 Nh2 Qf5 Nf1 Qh3 Nf2 Nh1 Rg2 Bh2 Rg5 Qg2 Ng3 Qf1+
1Q1r4/2R2K2/qR1R1NN1/n1r1Q1b1/Qp1PB1br/n2r3k/2qp4/3qr1B1 b - - 0 1 legal: proof: c4 d5 e4 dxc4 h4 f5 exf5 g5 b4 gxh4 d4 a5 Qb3 axb4 Qd3 cxd3 Kd2 Kd7 Ke3 c5 Ke4 h5 Ke5 b5 f4 c4 g4 b3 a4 b2 g5 c3 a5 d2 a6 c2 g6 h3 a7 h2 g7 h4 f6 h3 f7 Nf6 g8Q Ng4+ Kf5 e5 Kg6 Ke6 Ra3 e4 Ra5 e3 Nf3 e2 Nh4 e1R Nc3 b1Q Nd5 Nc6 Ra6 Bh6 Rb6 Bg5 Nf6 Ne3 Bd3 Qd6 Ba3 c1R Be4 Nc4 Qg7 Qc2 f8R N6a5 Rf7 Rd8 Rc7 Rb8 Bb4 Na3 a8Q Qdc6 Rf1 h1Q Bd6 h2 Qh8 b4 Kg7 Qf3 Ng6 h1R Qh5 Qb5 Qc6 Qbd3 Qa4 Qfd1 Qh8 Rh4 Rh1 Rg4 Rh6 Qa6 Nd5 Rgg1 Ra7 Rf8 Nh4+ Rf6 Bc7+ Qc6 f5+ Kd7 Rg6 Rg4 Rab7 Rf8 f6 Ke6 Bh2 Rg3 Rf7 Rd3 Bg1 Rb7 Rd7 Rd8 Rh6 Rc4 Rh7 Rc7 f7 Rcc3 Ng6 Rb7 Bf3 Kf5 Be4+ Kg4 Qe8 Rc7 Kf8 Rh3 Kg8 Rh4 f8Q Rd3 Qd6 Ra7 Qb8 Kh3 Nf6 Rc7 Rd6 Qcc2 Re7 Rc6 Rc7 Bg4 Kf7 Rc5 Qe5
1B1b1k2/1bq3q1/q1RR4/BppK1n2/2nQR3/QN1rq2r/1Pb3N1/5qB1 b - - 0 1 legal: proof: c4 e5 f4 exf4 a4 g5 h4 gxh4 e3 d5 a5 b5 a6 Bxa6 cxd5 Bc8 Bd3 Bb7 Bf5 Ba6 Bc8 Bxc8 Ke2 a5 Kf3 f5 d4 c5 g4 h5 d6 h3 d5 h4 g5 h2 e4 h3 g6 a4 e5 a3 e6 a2 g7 Nc6 e7 Ra3+ Qb3 Ne5+ Ke2 f3+ Ke3 f2 Nf3 f1B Nbd2 f4+ Ke4 Bb7 Ne1 f3 Ng2 Nh6 g8Q f2 Qg7 Nc4 Qd4 Nf5 d7+ Kf7 e8R Be7 Rg1 Qc7 d8B h1Q Qg3 h2 Nb3 Rh6 Be3 Rh3 Rd1 a1Q Qf3 Bg5 Bf6 Bh4 Be5 Bd8 Re6 Kg8 Rc6 Kf8 d6 Bd3+ Kd5 f1Q d7 Bc2 Rd3 Qe2 Re1 Qhf1 Bg1 h1Q Rd2 Qd3 Re4 Qe3 Rd3 Qh2 Bf4 Qg3 Rd2 Bh4 d8B Qcg7 Ba5 Bd8 Bb8 Q3c7 Nc1 Rd3 Nb3 Qae1 Qd1 Q1g3 Qa1 Qb6 Qa3 Q3c7 Re6 Qa7 Re2 Qa6 Rd6 Qeg5 Re5 Qe3 Re4
n1R3n1/Nn3N1B/B2b2K1/pQ3nQN/QqP1q1n1/3rr1p1/2q4b/R4k2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 a5 f3 a6 bxa6 Qd2 a5 Qd1 a4 Na3 f5 Ra2 h6 Bf4 Bb7 Nb1 Be4 Bg5 f4 Ra1 Bf5 gxf5 hxg5 Kd2 Ke7 Kd3 Kf6 Ke4 a5 c4 d5+ Kd3 Ke5 e4 g4 h4 g5 b4 a3 b5 f2 f6 a2 b6 g3 h5 f3 f7 Kf4 b7 g4 h6 g2 h7 Kg3 e5 Qd6 e6 Qb4 e7 Nd7 b8N Nb6 e8B Bd6 Na6 Rd8 f8Q Na8 Nh3 g1B Ba4 Bh2 Be2 Kg2 Ng5 f1Q Qd2 g3 Bb5 f2 Qff4 Qe1 Qh4 f1N Nc5 Ne3 Qh5 Ng4 Nce6 Re8 Ng7 Re3+ Kc2 Kf2 Na3 Kg2 Bd1+ Qe2 Nf7 d3+ Kc1 d4 Ba6 Kf2 Nb5 Kg2 Qb2 d2+ Kc2 Qf3 Be2 d1N Qg5 Qe4+ Bd3 Kf2 Nh5 Kg2 Na7 Kf2 Qb3 Kg2 Rb1 a1N+ Kc1 Kf2 Qa4 Nb3+ Kc2 Nc5 Ra1 Nb7 Rf1+ Kg2 Rf5 Kg1 Rc5 Kg2 Rc8 Kf2 Kc1 Ke1 Bc2 d3 Qgb5 Kf1 Qg5 Qf3 Bb1 d2+ Kc2 Rd3 Qgb5 Qe4 Qg5 N8h6 Qgb5 Rd8 h8Q Ng8 Qg7 Re8 Qgg5 Qc6 Nf6 Ree3 Nh5 Qe4 Qh4 Qg6 Qc6 Rd4+ Qe4 Re1 Qb5 Rd5 Qg5 Qe6 Qd4 Nde3+ Kd3 Qe8 Bc2 Qc6 Ke4 d1Q Qc3 Qe2 Qa3 Rd2+ Qbd5 Qca4 Bd3 Qc2 Qa4 Rdd1 Qde5 Rd2 Kf4 Rdd1 Bh7 Rd3 Qd8 Qf3+ Kg5 Nf5 Kg6 Qe3 Qeb5 Qe4 Ra3 Re2 Qg5 Ree3 Ra1+
r1QR4/2B3b1/4b1P1/prb1QR2/Nqp2R1n/2n4q/nNnK1k2/1B1Qn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Ke6 e4 Ke5 d3 Kd4 g5 f5 g6 c5 b5 h5 b6 a5 e5 f3 b7 f2+ Kd2 a3 e6 f4 e7 f3 e8Q c3+ Kc2 h3 Bd2 h2 Qe6 a2 Bh3 f1N Qc1 h4 Bh6 c4 Qb2 f2 Bg7+ Nf6 Qg8 Ke3 d4 Nd5 Na3 Bc5 Bg4 h3 Kc1 c2 Qb3+ Nc3 d5 Rh5 d6 Qb6 d7 Qb4 d8R Nd7 b8Q Ne5 Bh8 Nf3 Be5 Ne1 Nb1 Be6 Ne2 Ng3 Bf5 f1N Bd3 Kf2 Nf4 Nf5 Bc7 N1e3 Kd2 c1N Qd1 Nh4 Qc8 Re5 Qh8 N3c2 Rd4 Rg5 Qe5 Rh5 Rg1 h1Q Rg5 h2 Rf5 Qf1 Be4 h1Q Nd3+ Kg1 Nb2 Qhh3 Na3 Qff3 Nb5 Kf2 Rb1 a1B Rd8 N3a2+ Nc3 Ne2 Bd3 Qb5 Nca4 Nec3 Be4 Qb4 Rc1 Ne3 Bb1 Qf4 Qg4 N1c2 Re1 Neg2+ Re3 Nge1 Qd1 Qff3 Red3 Rg5 R3d4 Qf4+ Qe3+ Kg2 Re4 Be7 Rf7 Rb5 Rf5 Bc5 Nd3 Nd5+ Nc3 Qa3 Na4 Bg7 Ndb2 Ndc3 Red4 Qb4 Rd3 Qff3 Qe5 Kf2 R3d4 Qf4+ Rdxf4+
4r1k1/4n3/N2Bp3/1nK1RN1b/1P2rqqB/1R1qp1q1/3q2Q1/b2QbQ1N b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Be2 g5 Bf3 gxf4 g5 Ba6 Be2 Bc8 Bg4 hxg4 Kd2 Kf7 c4 a5 h4 d5 h5 e3+ Kd3 a4 b6 g3 h6 f3 h7 a3 c5 a2 c6 f2 c7 f1Q+ Ne2 g2 b7 g1Q Rh3 Qg3 Nc3 Bg4 c8N Na6 b8B Qff4 Na4 Nc7 Nc5 Nb5 Na6 Bh5 g6+ Kg7 Rb1 a1B Nd6 e6 b4 Be7 Bb2 Bh4 Nf5+ Kf8 Bc7 Ne7 Bd6 Rc8 Rh2 Rc4 g7+ Kf7 Rg2 Re8 h8Q Qd7 Qh6 Kg8 Qf6 Qd8 Bc3 Qd7 Rb3 Qd8 Be5 Qd6 Rf2 Qgg4 Rh2 Be1 Neg3 Qc7 Bd6 Qb8 Nh1 Qfg3 Kc2 d3+ Kc1 d2+ Kc2 Q3f4 Kd3 Re4 Rh3 d4 Kc4 d3+ Kc5 Bg6 Rh6 Bh5 Rg6 Qfg3 Rg5 Q3f4 Qd4 Qfg3 Qc4 Q3f4 Bf6 Qfg3 Qdc2 d1Q Qg2 d2 Qcf1 Qb1 Qgf3 Qd3 Qd1 Bg6 Rh5 Bf7 Bh4 Bg6 Qc2 d1Q Qce2 Q1d2 Qd1 Kf7 Rg5 Bh5 g8Q+ Kf6 Qh8+ Kf7 Qb2 Q3f4 Ng7 Kg8 Re5 Qdh2 Qbg2 Qhg3 Rf5 Qd8 Re5 Qd2 Nf5 Qd7 Bb8 Q7d3 Bd6
NB3B2/3pb2n/1r3bk1/R2qn3/2b2R2/Rq1bK1Qp/b1q1Q1P1/Qr1N4 b - - 0 1 legal: proof: a4 c5 d4 cxd4 h4 e5 f4 exf4 h5 b5 e3 d3 axb5 g6 c3 gxh5 Be2 h4 Bf3 Be7 Bd5 Bb4 Bb3 Bf8 Bc2 dxc2 Kd2 a5 b4 h5 b6 f5 c4 Kf7 c5 h3 b5 h2 c6 f3 e4 a4 e5 h4 c7 a3 e6+ Kg6 b7 a2 b6 f4 e7 h3 e8R f2 Qe1 f1B Na3 f3 Re2 f2 Nb5 Nc6 b8B Bb7 c8Q Be7 Be5 Nf6 Re4 Qg8 Nc7 Qb3 Rb4 Ra6 Qa8 Bc4 Ne2 f1B Nc3 Nh7 Qe2 Rb8 Ba3 Bd3 Rg1 h1Q Nd1 Bc4 Bg3 Ne5 Bh2 Bbd5 b7 Bd3 Rf4 Rb6 Ke3 Be6 Qa4 Qd5 Na8 c1Q+ Kf2 Qc2 Ke3 Bd8 Bf8 Be7 Rb1 a1B Rb5 Bb2 Qa1 Bc4 Ra5 Bc3 Qe1 Bfd3 Qe2 Ba2 Re1 Qdb3 Rg1 Bec4 Rgf1 Bb2 R1f3 Qe1 Bg3 Qeb4 Bh2 Qd6 Bg3 Qd5 Bh2 Rc8 b8Q Re8 Qc7 Reb8 Bg3 Ba6 Qc3 Bac4 Qce1 Bc3 Bh2 Bb2 Qg3+ Bg5 Ra3 Nc6 Rf1 Qf5 Qgg4 Qa4 Qgf3 Be7 Re4 Ra6 Rf2 Bbf6 Re6 Rb1 Bb8 Rab6 Re5 Qab3 Rea5 Qd5 Qf4 Ne5 Qh4 Qcc3 Rf4 Qcc2 Qg3+
1b4Q1/1Bk2Rnb/3br1pp/b1N2b2/4B1b1/KR1q1Rr1/Q3NP2/3Nb1n1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra2 fxe4 Ra4 Qb6 Ra1 Qd8 g4 Na6 h4 Nb8 g5 Nc6 g6 hxg6 Ra3 Nb8 Ra4 Rh7 Ra1 Rh8 h5 Nf6 h6 Ng8 h7 Qa5+ Bd2 Qd8 Bh6 gxh6 Kd2 a5 Kc1 d5 b4 Kd7 Kb2 e5 c4 a4 b6 e3 b7 d3 b5 d4 b6 a3+ Ka2 e2 c5 e1B Ne2 e4 Rh2 e3 Qc1 d2 Bg2 d1B Qc4 d3 Qb3 d2 Qc3 Bd6 Qb2 Nf6 Nbc3 Bb3+ Kb1 d1B Qd2 a2+ Kb2 Ne8 Rh1 Ra3 Rh4 Nc6 b8R Nd4 b7 Kc7 c6 Ng7 Rh3 Re8 h8Q Bg8 Rf3 Bh7 Qg8 Re6 Rc1 Bc2 Nd1 Bf5 Rc5 Bg4 Rcf5 Bd7 Qc2 Ba5 Rf7 Rd3 Qb1 a1B+ Ka2 B1c3 Qa1 Bcb4 Kb2 Be5 Qa2 Bbd6 Bh1 Qf6 Bg2 Qf5 Bh1 Ra3 Bg2 Qd3 Bh1 Kb6 c7 Bf5 c8B Kc7 Rh3 Rc3 Be4 Nf3 Rg3 Ng1 Rf3 Kb6 Ra8 Bg4 b8N Kc7 Bcb7 Bg3 Ra6 Ra3 Rb6 Bgf4 Ng3 e2 Rb3 e1B Ne2 Re8 Rf8 Bdf5 Nd7 Re6 Nc5 Be3 Nd7 Ba7 Nc5 Bb8 Rb6 Rc3 Rb3 Qb5 Rf6 Re3 Ka3 Qd3 Rf4 Rh3 Rf3 Rg3 Rf7+
k2BNR1N/4n2q/Qr1Q1B2/3R1r2/n1K1b3/p1b1p3/1rbbn1P1/2B2Nq1 b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 a4 cxd4 c3 g5 Bc4 gxh4 Bb3 b5 axb5 d3 Bc2 dxc2 Ke2 a5 b4 e5 f4 h5 b6 d5 f5 Kd7 f6 Kc6 b7 h3 c4 a4 f7 e3 Kd3 h2 c5 e4+ Kc3 a3 Nf3 h4 Qg1 h3 Ng5 d4+ Kb3 d3 Qd1 e2 Ne6 e1B Qf3 d2 Qd1 e3 Ng7 Bf5 Ne8 Qe7 Rf1 h1R Kc4 Nd7 b8B Kb7 b5 h2 b6 Ra6 c6+ Ka8 c7 Rh5 c8Q Nc5 Qd7 Na4 Be5 Bg7 f8N Be4 Qb5 Rf5 Ng6 Qa7 Nh8 Ne7 Bc7 Bc3 Bd8 Rg1 Ra2 h1Q Rf3 Rf1 Rf4 Qg1 b7+ Kb8 Rf3 Rb6 Rb2 Rf2 Rb4 Rd5 Rf8 Rdf5 Rb3 Bb4 Rd3 Bc3 Rd5 Re2 Qb4 Ref2 Qh5 d1B Nd2 Re2 Nf1 Bed2 Qb5 Ref2 Qg6 Re2 Bb2 c1N Qe6 Bdc2 Qed7 Nb3 Bc1 Nd4 Qdc6 Ref2 Qe6 Ne2 Qed7 Qa5 Qd6+ Ka7 b8B+ Ka8 Bbc7 Qa7 Bb8 Nc6 Bf6 Qh7 Bc7 Ne7 Bd8 Re5 Qbb4 Rff5 Qbc5 Rb2 Qb5 Re6 Qdb4 Ra6 Qd6 Rb6 Qa6+
5R1r/1nb1qrRQ/2r5/2B2n1b/1Q2rp2/P1NkNq2/Rp1Q3K/1b1B2n1 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 g5 Nd2 gxh4 Nb1 d5 cxd5 c5 Rh2 cxd4 Rh3 Be6 Rh1 Bc8 Kf2 Ke7 g4 Kd6 Kg2 Kc5 e4 b5 a3 h5 g5 f5 d6 d3 d7 Kd4 e5 d2 e6 f3+ Kh3 f2 g6 b3 g7 b4 e7 b2 e8R b3 Kh2 h3 Bc4 f1R Re2 h4 Re1 Qe7 d8Q+ Nd7 Be6 Kd3 Qe8 Ra6 Bf7 Nc5 Re4 Rc6 Bd5 Nh6 g8Q Nb7 Qdh5 d1Q Rg4 Qf3 Nd2 b1B Bf7 b2 Bb3 f4 Rg3 Nf5 Qhg4 Re1 Qh7 Re4 Bd1 Bd7 Qef7 Be8 Nc4 Bg7 Qgg6 Be5 Be3 Bc7 Qf8 Bf7 Qg4 Bh5 Qb8 Rf8 Ne2 Rf7 Bg1 Nd4 Nc3 Ne2 Bc5 Ng1 Rg2 Ne2 Re1 Ng1 Kh1 h2 Ra2 Qf2 Rg3+ Qe3 Kg2 h1N Kh2 Qf3 Ne3 h3 Rg2 Ng3 Qd7+ Nd6 Qb4 Nf5 Qe6 Nb7 Rg7 Rb6 Qeg6 Rc6 Qd6+ Rd4 Nb5 Qf6 Nc3 Bg6 Qh8 Kd2 Ng4 Qd8 Re8 Qe7 Qe6 Kd3 Qe1 Re4 Rf8 Qe3 Kh1 h2 Kg2 h1R Qf2 Qe2 Ne3 Rh5 Qg8 Rh8 Qh7 Qf3+ Kh2 Bh5 Qd2+
1krQ1r1R/n1b1Kb2/1QqN2qB/1q2p3/2Qn1P2/5NqB/Np1b4/4Rn2 b - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a5 Qc2 axb4 Qb3 Ra5 Qd1 Ra8 h4 g5 e4 gxh4 a3 bxa3 Rh2 fxe4 Rh3 Bg7 Rh1 Bf8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 h5 d4 b5 f4 h3 g4 h4 g5 b4 g6 a2 g7 e3 Be2 b3 Ba6 b2 Bd2 c4 Qe1 c3 Bb5 h2 Bd7 h3 Ke6 c2 Na3 c1B Qg3 e2 Qg6 e1Q+ Qe4 Nc6 d6+ Kb8 d5 Qa5 Qe2 Nd4+ Kf7 e5 Nb5 Qg3 Qf2 Ne7 g8Q Nec6 Nc3 Na7 Nf3 Qb5 Bf5 Be7 d7 Bd6 d8Q Bc7 Ke7 Qg6 Be1 Bd2 d6 Qg3 Qb3 Rf8 d7 Qg6 Rd1 a1Q Qc4 Qaa4 Be6 Qab3 Na2 Qbd3 Qe3 Qg3 Bf2 Qdg6 Rhe1 h1N Rc1 h2 Bh3 Q3g4 Bh4 Ng3 Bg5 h1Q Bh6 Nf1 Qeb3 Qg3 Rc2 Bda5 Rh2 Qhg2 Qbb4 Q2c2 Qbc5 Bd2 Rh1 Qce4 Qb6+ Qb7 Qe8 Qbc6 d8N Be6 Qd7 Bd5 Nf7 Qb5 Nd6 Bf7 Bg7 Rc8 Qd8 Qc6 Bg2 Qb5 Rh8 Qc6 Bh3 Qb5 Qa5 Q7c6 Bh6 Q3g5+ Kf8 Qg3 Qe8 Rd8 Nc8 Kb7 Ke7 Rb8 Qd7 Rf8 Qb6+ Ka8 Nd6 Rbc8 Qbc5 Kb8 Qd8 Qa4 Qa5 Qab5 Qb6+
bkn1NrQ1/Rrb1q3/b1r3qN/p3B1Q1/3pB1PB/4r2n/3RN1K1/2n5 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 h5 e4 a5 g4 d5 b4 Kd7 b6 f5 b7 Kc7 e5 f3 b5 c2 e6 f4 e7 d4 e8Q h3 Qe5+ Bd6 Qf5 h2 Be3 c1N Qe4 h4 Qe7+ Nd7 b8N h3 Ra3 Rh7 Nc3 Ra6 Nge2 Rc6 Nb1 Nf6 Qe5 Nh5 Qg5 Qe7 Qb3 Ba6 Nd2 Nb6 Ne4 Nc8 b6+ Kb7 Qc4 Bc7 Bg2 Rf7 Re1 h1R Ra2 h2 N4g3 Rg1 Qcd5 h1B Nd7 Rg7 Nf6 Kb8 b7 Rf7 Rd1 Re1 Nf5 Rh7 Nh6 Rg7 Bf1 Bg2 Kg1 f2+ Kh2 Bh1 Bg2 f1Q Bf2 f3+ Bg3 f2 Rad2 Nf4 Be4 Bg2 Ne8 Nh3 Qg8 Rh7 Be5 Qg1+ Kg3 f1R Rc2 Rf2 Rdd2 Rf8 Rc5 Rg7 Rd5 Qf1 Rd7 Qff6 Kh2 Qg6 Bg3 Ka7 b8B+ Ka8 Ng1 Re3 Ne2 Bd8 Bbd6 Bc7 Bh4 Kb8 Be5 Rb6 Bc2 Ba8 Be4 Rgf7 Kg2 Rff6 Rd5 Rb7 Rb5 Rc6 Rb6 Bd3 Ra6 Bb5 Ra7 Bc4 Qh7 Ba6 Qg8
2R1k1r1/Bb6/1R1n2P1/NQQq4/Nq2br1r/1QB2p1p/q5N1/1nK2nn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 fxe4 f5 c5 Na3 cxd4 Nb1 g6 h4 Kf7 g4 Ra3 g5 Rf3 f6 Rf5 Bh3 Ra5 Bg4 Ke8 Bf5 gxf5 g6 Bh6 Nd2 Ra8 Nb1 Bg5 hxg5 Qa5 Rh6 Qb6 Rh1 Qd8 Kd2 b5 a4 d5 c4 h5 c5 e5 g7 d3 c6 h4 a5 f4 c7 b3 g6 b4 a6 e3+ Ke1 d2+ Ke2 h3 a7 d4 Ra3 b2 Qe1 d1R Nc3 b1N Bb2 f3+ Kf1 e2+ Kf2 d3 Ke3 b3 Nb5 e4 Qf1 e1Q+ Qe2 d2 Bc3 b2 Rb3 Rh4 Na3 Nc6 Rb6 Nd4 Nc4 Nh6 Na5 Bb7 c8Q Nf7 Qc5 Nd6 Rc6 Qg3 Qeb5 Qg2 Ne2 Qd7 Nf4 Ne2 Re1 Ng1 Re2 Rb8 a8N Qf7 Rf2 Qd5 Nb6 Rc1 Na4 d1B Qbb4 Bc2 Qbb5 Nd2 Rf1 b1N f7+ Kd8 f8B Ke8 g8Q Bd3 Bb2 Rc4 Bc3 Bc2 Rd1 Qh2 Ng2 Nf1+ Kf2 e3+ Ke1 e2 Bh6+ Ke7 Be3 Rcf4 Rb6 Be4 Rc1 Qd3 Qgb3 Rg8 Bf2 Qd5 Rc6 Na3 Rb1 Ke8 Bfd4 Ne3 Kd2 Nf1+ Kc1 e1Q+ Qd1 Qc4 Rb2 Nb1 Bf2 Qb4 Be3 Qe2 Qb3 Qd3 Qbb6 Qg3 Qg5 Qbc4 Qa2 Qcd4 Rb5 Rf6 Qb3 Qb4 Qa6 Rf5 Ba7 Rff4 Qc5 Qf2 Rbb6 Qa2 Qab5 Qd5 Rc8+
2B1qn1r/Q1b1RbBN/1n2N1Pp/1rR1p1qQ/2b3r1/7K/N4q2/1kQ1r3 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 c4 Kf7 f4 Kg6 Kf2 Kf5 c5 e5 b6 d5 c6 b3 b7 e3+ Kf3 b2 c7 h6 g3 e2 Kg2 Ke4 f5 e1R f6 d3 g4 h3+ Kh2 d2 g5 d4 g6 d3 f7 Ne7 Ra6 Nd7 b8N Qe8 Be2 Nd5 Ra5 Bd6 f8Q Ba6 c8Q Bc4 Qe7 Nf8 Qa7 Bc7 Bg4 Nb6 Nc6 Bf7 Kg3 h2 Nh3 Ke3 Nc3 b1R Qf5 Rb5 Rf1 h1Q Ng5 Qh5 Nh7 Qg5 Ba3 Bc4 Qc2 d1Q Na2 d2 Nd4 Qe2 Kh3 d1B Ne6 Qf2 Qb2 Bdb3 Qc1+ Qd2 Be7 Rd8 Bf6 Rd4 Bg7 Re4 Qf4+ Kd3 Qh2 Qe2 Rf7 Qf2 Re7 Rd4 Qe3+ Kc2 Qh1 Kb1 Qf4 Rb4 Rc5 Rb5 Bf5+ Bc2 Qh4 Rg4 Qh5 B2d3 Nf4 Bb3 Bc8 Bf7 Ne6 Bc4 Qf1 Qd4 Qf4 Qf2 Qc1+
5R1r/5K2/Bp6/1BP1q1Q1/2n1pN2/krnb1N2/NR2bbr1/1Q2Qqqq b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Nb1 f5 exf5 g5 Qg4 Bg7 Qd1 Bf8 f4 h6 g4 Kf7 Be3 Ke8 Bf2 Ra7 Bh4 gxf4 g5 Ra6 g6 Ra8 Bg5 hxg5 Kf2 e5 Kf3 Ke7 Ke4 Kd6 a4 Kc5 c4 d5+ Kf3 g4+ Kg2 b3 h4 Kb4 h5 d3 f6 d2 f7 b6 g7 d4 a5 g3 Kf3 d3 Ke4 f3 h6 f2 a6 g2 a7 b2 h7 Ne7 g8B Qd6 Nf3 g1Q Ra2 Nd7 Qe1 Nd5 Kf5 e4 Nc3 b1R Rb2+ Ka3 Na2 d1Q c5 d2 Bb5 f1Q Rh5 Bg7 f8N Nc3 Bgc4 Bd4 Ng6 Ba6 Nf4 Rag8 a8Q Ne5 Qd8 Rg2 Qg5 Bf2 Rh3 Qd5 Kf6 Qd4 Bd3 Nc4+ Kf7 Qe5 Rh6 Qc1 Rf6 d1B Rf5 Be2 Rf6 Re8 h8Q Qd1 Qh1 Rh8 Rd2 Rb3 Rb2 Qd2 Qb1 Qdc1 Qhh4 Bd4 Qe1 Bf2 Rd6 Qh1 Rd8 Qd1 Rf8 Qfg1 Qd2 Qdf1 Qde1 Ne3 Ba4 Bb5 Bc4 Ba6 Be6 Bad3 Bc8 Nc4 Ba6 Rhh2 Bc6 Rh8 Bcb5
r5br/Q2bpQ2/2r1R2b/BqqB1rP1/2n3Bp/qN1n4/R6R/1N2k2K b - - 0 1 illegal: No possible last move
2Q5/3qp1q1/p1QBBPN1/qrr5/1b1N1B2/1b2R1K1/1nkN4/r1bR1qn1 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 h4 g5 e4 gxh4 c3 dxc3 Ra5 fxe4 Ra4 Qc7 Ra1 Qd8 g4 Kf7 b4 Kf6 f4 h5 Kf2 d5 b6 d4 b5 c2 g5+ Kf5 g6 h3 b7 h2 g7 h4 b6 h3 Ba6 e3+ Kg3 Ke4 f5 d3 f6 e2 Na3 d2 Bc4 Rh5 Bb3 Kd3 Bf7 e1B+ Kf4 Nc6 b8N Nb4 b7 Nh6 g8Q Nf5 Qg5 Nh4 Qe5 Nf3 Ne2 Bh6+ Qg5 Ng1 Nd4 Be6 Ndb5 Bb3 Na6 Qa5 Qg4 d1Q b8B Bc3 Bd2 c1R Nc4 Kc2 Ne5 Nd3+ Kg3 Nb2 Ra3 Bb4 Bf4 Qd7 Nc5 a6 Bc4 Ra1 Bd6 Rc8 Ne4 Rc5 Q5f5 Bg5 Ng6 Bh6 Qe6 Bg5 Bfe5 Bc1 Nd2 Rg5 Na7 Rb5 Bf4 Rgc5 Nc6 Nf3 Rf1 h1Q Bd5 h2 Rd1 Qf1 Bc4 h1Q Nd4+ Kc3 Qe4 Qh8 Qc6 Ng1 Be6 Qg8 N4f3 Kc2 Qh3 Bd5 Re3 Qg7 Qh8 Ba2 Qhc8 Bb3 Nd4+
2q2nbq/2QP3b/q4r1B/R3Qpp1/k2r1rN1/b1bRn1K1/4Q1B1/1B2N3 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 e5 c5 exf4 c6 axb4 axb5 dxc6 Ra4 c5 Ra1 c4 Kf2 Kd7 e4 g5 d4 c5 h4 f3 b6 Kc6 b7 Kb5 d5 g3+ Ke3 f2 Kf3 g2 d6 b3 h5 b2 e5 Be6 h6 Nd7 h7 Ngf6 Rh3 Ng4 Bf4 Bg7 Bg3 Ne3 Qe2 Ra6 Bh2 Nf8 Na3+ Ka4 b8Q b1B d7 c3 Qeb2 c2 Kg3 c1B Nf3 g1Q+ Bg2 f1R Ne1 c4 Qc7 c3 Qe2 c2 Nc4+ Ba3 Ra2 Bd5 e6 c1Q e7 Raf6 e8B R1f4 Ne5 Qf1 Ng4 Qc8 Bg1 Qc3 Bf2 Rd4 Ra1 Rg8 h8Q Bh7 Ra2 Rff4 Ra1 f6 Bg6 Ba2 Bb1 f5 Bg1 Bf6 Bf2 Rg6 Bg1 Bag8 Bf2 Be7 Qhe5 Rf6 Bg1 Bb4 Ra2 Nc2+ Be3 Qa1 Bd2 Ba5 Bb4 Ne3 Bd6 Bc3 Bc5 Ng6 Bf8 Qh1 Bh6 Nf8 Rb2 Qa2 Rb5 Qe6 Rc5 Qea6 Ra5+ Kb3 Qc6 Nc2 Qcc7 Bg6 Bg7 Kb4 Nf3 Qh2+ Kf2 Qh1 Rg3 Qh8 Bh6 B6h7 Rh3 Rfe4 Ne1 Rf4+ Rf3 Kb3 Kg3 Kb4 Rd3 Ne3 Rb5+ Ka4 Ra5+
1b1qQ1RK/1P1b1kBn/NQrBn3/1RN3p1/1np5/4qn2/q2B4/3rb1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 f5 Ke2 g5 Kf3 a5 d4 c5 b4 c3 h4 c2 h5 a4 d5 f4 b6 c4 h6 a3 b5 a2 d6 Bb7 Kg4 f3 Kh5 f2 Kg6 f1N d7+ Ke7 h7 Nf6 e5 Ra6 e6 Ne8 Na3 Nc7 Nh3 g1B Qd4 g2 Rb1 a1Q Bd2 c1N Nf4 Bf2 Nc2 g1Q Nd3 Nh2 Nc5 Be1 Nb4 Bc8 b7 Qa2 b6 Qe3 Rg1 Nf3 Rb3 Bg7 Rb2 Re8 h8B Nd3 Kh7 Be5 Bg7 Rf8 Rb3 Rf4 Qb2 Rd4 Qb1 Rd6 Rb2 Rc6 Rb3 Ra3 Nba6 Nb4 Rb2 Rd3 Rb3 Qe8 d8R Nd7 b8B Nf8+ Kh8 Bd7 b7 Rd5 Rc8 Qd8 Qb2 Ke8 e7 Nce6 Bd6 Kf7 Qb1 Nc2 Rb5 Nb4 Bc3 Rd1 Bd2 Qda5 Qb3 Nh7 Rg8 B5g3 Qa4 Qd8 Qa5 Be5 Qb6 Bb2 Bf4 Be5 Bh2 Bc7 Bd6 Bb8 e8Q+
3R1nbr/Np5q/b2PkrB1/2p3qB/KQ3n2/2qR3Q/NRr1b3/4B2b b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 a5 b4 axb4 f5 e6 Bb2 exf5 Bc1 Be7 Bg2 fxg4 Bf1 g3 Qb3 g4 Qd1 Bg5 hxg5 Qf6 Ba3 Qd6 Bc1 Qd8 e4 Kd7 d4 c5 Kd2 h5 Kc2 f5 a4 g2 g6 g3 a5 c3 Kb3 f4 g7 h4 e5 c2 a6 f3 a7 f2 d5 h3 d6 h2 Ra3 Qa5 Ra2 Nf6 g8R Nd5 Nf3 g1Q Be2 f1B Nc3 g2 Bb2 c1R Qd4 Nf4 Qd3 Ke6 Rd8 Nd7 Bd1 Rb8 a8Q Be2 Qh7 Qc7 Qa3 Qe1 Ka4 b3 Qb4 g1Q Qh3+ Qg4 Ra3 Nf8 Na2 Qh7 Bc3 b2 Rg1 b1B Rg2 Qg3 Be1 h1B Rd3 Rc2 Rh2 Kf5 Rg2 Be6 Rf2 Bf7 e6 Bg8 e7 Ke6 e8B Qgf5 Rh2 Qgg7 Bg6 Qc3 Ne5 Qg4 Qg3 Qg5 Nc6 Rc8 Na7 Rc7 Rd5 Rf7 Rd3 Rf6 Rg2 Bf1 Bdh5 Be2 Nc1 Ba2 Rh2 Bc4 Na2 Ba6 Rf2 Bf1 Rfd2 Be2 Qh4 Rc1 Rb2 Rc2 Qh3+
2k2Rn1/3b1nBN/5nq1/1pBnr1Q1/p3Q1nr/R1P1b1K1/RB3N1r/2n5 b - - 0 1 illegal: No possible last move, all moves rejected
K5B1/nR2b1NP/1p4rN/QrQn2n1/B3n2n/5R2/n1NRp1bk/6bq b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 f5 g4 fxe4 Bb2 h6 Bf6 gxf4 g5 Kf7 g6+ Ke8 Bg5 hxg5 Ke2 Kd7 a4 Kd6 h4 Ke5 h5 c5 h6 b3 g7 g4 d3 b6 d6 c4 d7 f3+ Ke3 f2 a5 g3 h7 g2 a6 c3 a7 c2 Ne2 g1B Rh3 c1N Nbc3 b2 Ra3 b1N Bg2 Nc6 Qb3 Na2 Bh1 Nf6 g8B Nd2 Qb4 Nf3 Ng3 Nh4 Nb5 Bb7 Nh5 e6 Ng7 Be7 Rf3 f1N+ Ke2 e3 d4+ Ke4 Qc5 e5 d5 Nd2 d6 Nd5 Nd4 Qc8 d8R Qh3 Bg2 Qh1 d7 Rc8 a8Q Na7 Nc2 Rc7 Rh3+ Kf4 Kd3 e4+ Kd4 e2+ Rae3 e1N Rf3+ Kg4 Rb8 Rc6 d8N Rg6 Nf7 Bc6 Rf2 Bb7 Ra3 e3 Nh6+ Kg3 Rc3 Ne4 Rd2 Bc6 Rb7 Kh2 Ke5 e2 Rf3 Nb5 Qa5 Na7 Be6 Rf8 Bg8 Rf4 Bh3 Rff6 Bd7 Rd6 Rc7 Bb7 Ba4 Ba8 Rb7 Rdf6 Re3 Rf5+ Kd4 Nef3+ Kc4 Nc6 Kb5 Nfg5 Ka6 Na7 Rf3 Ndc3 Qc6 Rb5 Qc5 Nd5 Rd7 Bc6 Rc7 Bd7 Kb7 Bh3 Ka8 Bg2 Rb7
2B4K/rBb4N/q4n2/Rr2Qr1Q/3b2bR/2Pp2n1/1Nr2pk1/1Nb1R2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 e4 d5 b4 a5 b6 f5 b5 g5 c3 d3 b7 a4 h3 g2 b6 Kg3 h4 d4 h5 a3 h6 f4 h7 f3 Nd2 a2 Nb3 d2 Qc2 d1B Nh3 g1B Nc5 d3 Qa4 Na6 b8Q Ra7 b7 Be3 Bg2 Qb6 Nf2 Nf6 Rh4 Bc1 Nb3 Nc5 Nd2 Qa6 Qa5 Be6 Qe8 Bd5 b8R Bd6+ Kf5 Rg8 h8N Rf8 Kg6 Bc7 e5 Nce4 Kg7 Rb7 e6 Rb5 e7 Be2 Rb1 a1R Ng6 Ra2 Nd1 Rc2 Nb2 Kf2 Rh5 g3 Rh4 g4 Ra1 Bd1 Bh1 g2 Nb1 g1R Ra8 g3 Ra4 Rf7+ Kh8 g2 Nf8 Ng3 Nh7 Rf1 Rae4 g1B Bg2 Rg7 Qh5 Bc6 Bh3 Bd5 Bg4 Kg2 e8B Bd4 Bc8 Rf7 Qe5 f2 Qh5 Bg4 Bc6 Re1 B6b7 Ree2 Rf4 Re5 Ra7 Bdf3 Re4 Rf5 Ra8 Kg1 Ra7 Bh1 Ra8 Kg2 Ra7 Rb4 Qe5 Rb5 Ra8 Qe6 Ra3 Qa6 Ra5 Bb8 Bd5 Ra7 Bdb7 Bc7 Re1+
rn1N2bb/RbN5/2BQ3r/R1bQ1q2/r2QB2R/p3P2r/6p1/1kb1K1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 c4 Ke7 h4 Ke6 b4 Ke5 c5 Ke4 b6 d5 b7 a5 h5 f5 b5 g5 c6 a4 c7 a3 b6 d3 h6 g2 h7 g3 Rh4+ g4 Rh3 f4 Ra2 f3 Rc2 d4 Rh4 f2+ Kd2 Nh6 Nf3 g1B Rc1 g2 Rc4 Nf5 Ne5 Bc5 Qa4 Ng3 Rh1 Qf6 Rh3 Qf5 Kd1 d2 Nf7 Bh2 Rh4 g1B Bh3 f1B Qb5 Be3 Nd8 Bg2 Rc1 Be6 c8B Bg8 Bd7 Bf3 Bg2 Bhg1 Kc2 d1R Qc4 Rd3 Bc6+ Qd5 Rd1 Bc1 Nc3+ Ke3 Bh1 Qf5 Qd5 Bf2 Bg2 Be1 Nb5 Bc3 Rd2 B3b2 Kd1 Rc3 Be8 d3 Nc7 Rb3 Rc2 d2 Bc6 Rb4 Rc4 Rba4 Rb4 Be4 Bf3 Be5 Rb5 Ba1 Qb3+ Kd4 Qf7 Kc3 e3 Ne2 Ra5 Kb2 Qd5 g3 Ra7 g2 Ra5 Na6 b8Q Ng1 b7 Kb1 Qa7 Bg7 b8Q+ Bgb2 Qbb6 Nb8 Qaa6 Bd3 Qaa7 Ba6 Qb4 Bb7 Qf4 Bg7 Qfd6 Nh3 Ke2 d1R Qb6+ Bgb2 Ra7 Rdd4 Ke1 Ng1 Rh5 Rh4 Qb4 Rh3 Qbd4 Be6 Rg5 Rf8 h8R Rf6 Rh4 Bg8 Rg7 Rg6 Ra5 Rh6 Na6 Bc8 Ra7 Bb7 Nc7 Bc3+ Qd2 Bf6 Q2d4 Bh8 Be4+
nr6/2rrPr2/NB1qNQn1/nNR1p3/QQ2p3/1n1k4/6n1/R2KB1bb b - - 0 1 legal: proof: f4 d5 h4 e5 e4 c5 b4 cxb4 f5 a5 h5 a4 Bc4 Qa5 Bb3 axb3 h6 Qa6 Ne2 dxe4 Ng1 Qe6 fxe6 gxh6 Kf1 h5 Ke1 h4 g4 Ke7 c4 Kd6 d4 f5 a4 b5 d5 Kc5 g5 h5 g6 b2 g7 f4 d6 f3 a5 h3 d7 h2 d8B h4 a6 h3 a7 b3 Bh4 b4 Qd3 f2+ Kd1 f1N Bh6 Rh7 Ke1 Nc6 Qd7 Rb8 a8Q Nge7 g8Q Na5 Qd3 Rf7 Qe2 Kd4 c5 Ng6 c6 Bc5 e7 Bg4 c7 Ne3 c8N Ng2+ Kd2 Bf3 Nc3 b1Q Qf1 b2 Qf8 b3 Ra2 Qa1 Qaa6 b1N+ Kc1 b2+ Kc2 Nd2 Qb1 Ndc4 Na7 Nb6 Nd5 Na8 Nb5+ Kc4 Qe1 b1N Be3 Nd2 Ne2 Qd4 Nb4 Ndb3 Nf4 Qd6 Ra1 Ba7 Rg1 h1R Ne6 h2 Qh8 Bc5 Qf6 Ba7 Qd2 Bd4 Rgc1 Rd1 Bg1 h1R Be1 Rhh8 Qa7 Rhc8 Na6 Rc7 Be3 Bc3 Bb6 Bd4 Qf5 Bg1 Qf6 Qc5 Qd6 Qc6 Qa3 Rdd7 Qb7 Qc5 Qa4+ Qb4 Kb2+ Kd3 Rc5 Ne3 Kb1 Bh1 Kb2 Ng2 Kb1 Nd4+ Kc1 Ndb3+ Kd1 Qd4 Qb4 Qd6 Qd5+ Nd4 Qa2 Ndb3 Qaa4
q2R1r2/b3B3/1k1b2Pp/nr6/2NnNR1r/2B1BQ1n/Knp4r/1Q3R1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 a6 b6 Bh6 e3 Qd4 b5 Kf8 b7 Bh3 b6 Qd8 Be2 Bc8 Bg4 Ke8 Bh3 Bf8 Bd7+ Ke7 Bb5 axb5 Bb2 Kd7 Bc1 Ke8 d4 Kd7 Kd2 Kc6 Kc3 f5 Kb2 b4 g4 b3 e4 h3 e5 f3 e6 h2 e7 f4 e8R f2 g5 f1N g6 f3 Ra5 f2 Qe1 c3+ Ka1 c2 Kb2 Nh6 Qe2 Bd6 Bd2 c1B+ Ka1 b2+ Ka2 Nf5 Ra6 N1e3 Nh3 f1R Ng5 Nd1 Na3 b1R Be3 Rf4 Rg8 Rh4 Nc4 Nb2 Bf2 Be3 Rc1 h1N Be1 Nf2 Ra4 Nh3 d5+ Kb5 Bc3 c5 Rf8 Nc6 b8B Bb7 Ba7 Na5 Ne4 Nd4 Rcf1 h6 Re8 Rf8 Qf3 Bc6 b7 Qc8 Ncd2 c4 b8Q+ Bb7 Rd8 Bg1 Bb4 c3 Nc4 c2 Bd2 Rd1 Bb4 Rd2 Bc3 Rh2 Rb4+ Ka6 Ra4 Bc6 Qb3 Rb8 Qb4 Nb3 Be3 Nd4 Qb3 Rb5 Rb4 Bc5 d6 Qa8 d7 Bd6 Ra4 Nd1 Qb1 Nb2 Rb8 Bf2 d8B Ka7 Be7 Bd5 Ng5 Bc6 Rd8 Ka6 Qg4 Bh1 Ne4 Kb7 Qf3 Kc7 Ncd2 Kb6 Rb4 Bg1 Nc4+ Kc7 Ne5 Nf5 Nf2 Bc5 Rf4 Bd6 Ne4 Bf2 Bc1 Ba7 B1d2 Nd4 Be3 Kb6 Nc4+
b2r2Nb/2BR1qQ1/3PN3/Rpb3r1/N2nrn2/1pQ1k3/1K5b/Bn1Q2n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 h4 Ke7 e4 Kd6 d4 b5 Kd2 g5 Kc2 c5 a4 f5 a5 b3+ Kb2 g4 a6 c4 h5 f4 h6 f3 h7 f2 a7 f1N Nc3 Qe8 Ra6+ Nc6 Qf3 Nd2 Qe3 Qf7 Qf3 Nf6 Nh3 g1B Ng5 g2 Qd1 g3 Na4 Bh2 Ra5 g1R Ne6 Nb1 Be3 Rg8 h8Q g2 Qg7 Bb7 Bc1 Re8 a8Q Nh5 Qc8 Ba8 e5+ Ke7 Bd2 Nf4 Bc3 Re1 Rf1 g1N Rf3 Rd8 Rd3 Re4 d6+ Ke8 d5 Nd4 d7+ Ke7 Qh8 Rg5 Qg7 Nfh3 Kc1 Nf4 Ba1 c3 Rd2 c2 Qc3 Rc8 d8B+ Kd7 Bc7 Rd8 Kb2 Bc5 d6 Kc6 Rg2 Kd5 Rg4 Re2 Rh4 Ke4 Rh8 Rb8 Rd8 Re3 Rd7 Rd8 Nf8 Re2 e6 Re1 e7 Re2 Qb4 Ke3 e8N Re1 Nf6 Re2 Ne6 Re1 Kc1 Re2 Bc3 Re1 Kb2 c1B+ Ka1 Bd2 Bb2 Bc3 Ng8 Nc6 Qc4 Bf6 Bc3 Nd4 Kb2 Be5 Qg6 Bh8 Qg7 Nf5 Bf6 Nd4 Qc3+ Ke4 Qg3 Ndf3 Kc1 Re2 Ba1 Nd4 Qge1 Kf3 Qed2 Kf2 Qb4 Re4 Kb2 Ke3 Qc3+
2bn3N/2kR2Rq/1pNp1nn1/3Qr1r1/1K1P2r1/1BQ5/b2rN1b1/BB5n b - - 0 1 illegal: No possible last move, all moves rejected
nB4n1/3q1r2/2Rr1n1p/3NPb2/1pR1Q1Qq/2QN1r1B/K1k4B/1rq3r1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 Ke6 g4 Ke5 a5 Kd4 a6 c5 e5 f5 d3 b5 Kd2 c3+ Kc2 h6 Kb3 h3 a7 c2 g5 f3 g6 c4+ Kb2 c3+ Kb3 f2 g7 h2 Ra5 f4 Ka2 f3 Qe1 b3+ Ka1 b2+ Ka2 Rh7 Na3 b1R Ra6 Qd7 Bf4 c1R Rf6 c2 Nh3 Bb4 Qe4+ Kc3 d4 Na6 d5 Nc7 d6 Re1 Nc4 c1Q Rg1 h1Q Bh2 Ba5 Bg2 f1R Ne3 f2 Nf4 Rb8 a8Q Rb6 Qa7 Na8 Nd3 Ra6 Nd5+ Kc2 Bh3 Rd1 Qc5+ Bc3+ Qa3 b4 Rg4 Rg1 Rh4 f1N Rhf4 Ng3 Rg4 Qe6 d7 Rdf1 d8B Nh5 Bc7 Qd7 Bb8 Rf3 Rc6 Nhf6 Rf4 Qa7 Rg4 Bf5 Rh4 Qd7 Qa5 Ne7 g8Q Rf7 Rf4 Rb6 Qg4 Neg8 Qa3 Kd2 Qb2+ Kd1 Qa1 Kc2 Rc5 Rd6 Rc6 Kd1 Qe1+ Kc2 Rfc4 Qd2 Qee4 Qc1 Bg3 Qh2 Bf4 Qf2 Bh2 Qh4 Qxc3+
Rq2qqq1/1NBB2B1/2Q1pkp1/n1rP1r1n/K1R1r2N/4n3/1R6/1q1Q1b2 b - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 c5 axb4 c6 h5 Qc2 dxc6 Qb3 c5 Qd1 c4 g4 hxg4 a3 b5 Qc2 b3 Qc3 e6 Qh3 b4 Qf3 b2 Qe2 b3 Qd1 Bb4 axb4 Qd3 Qf3 Qd4 Qd1 Qd8 f4 Ke7 d4 c5 Kd2 g3 Kc3 g2 h4 e3 f5 e2 b5 e1N d5 Rh5 b6 Qe8 b7 Kf6 Ra4 Nc2 Bd2 Nc6 b8B Na5 Rh2 Ne3 Bc7 Ba6 Nf3 g1Q Na3 b1Q Nb5 b2 Nd6 g6 Nb7 Qf2 Bc1 Rg5 h5 Rb8 Nd6 Rb4 Nh4 Qf4 Nb7 Qd6 h6 Qdf8 h7 Bb5 Kd2 c3+ Ke1 c4 h8R c2 Kd2 Rh5 Kc3 Ba6 Bd3 Bb5 Bd2 c1R+ Bc2 Ke7 Re2 Nf6 Rg8 Rg5 Rh8 Nh5 f6+ Kf7 Rh2 Rf5 Rg2 Nf1 Bh6 Ne3 Rg8 Ba6 Rd2 Rb5 Rh2 Rc5 Kb4 c3 Bd3 Rc2 Bb5 Re2 Bd7 c2 Ka3 c1Q Rc4 Qc3+ Ka4 Qe5 Rg2 Qc1 Rf2 b1Q Rg2 Re1 Rb2 Qed6 Rc3 Bf1 Rc4 Qee7 Rh8 Qb8 Rc8 Qe8 Rd8 Qdf8 Rc8 Kg8 f7+ Kh8 Rd8 Qc3 Rc8 Qcg7 Rd8 Qfg8 f8Q Qgf7 Qe7 Qff8 Qd6 Re2 Qc6 Kh7 Bg5 Kg7 Bh6+ Kf6 Rc8 Rg2 Rd8 Rg4 Rc8 Re4 Rd8 Qa7 Ra8 Qab8 Bg7+
1KQQrn1q/BN3P2/1BB5/1nn1p3/b2n4/1qr4R/p1R2n1R/1k1q1r1N b - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 b4 g5 d4 cxd4 Bc4 gxh4 Bf1 b5 c3 bxa4 b5 Bh6 Rh3 Bf4 Rh2 Bd6 Rh1 Bb4 cxb4 Ba6 Qc2 Bb7 Qd1 Bc8 Kd2 Kf7 g4 Kg6 f4 d5 b6 e5 b5 a5 g5 Kf5 g6 h5 b7 e3+ Kd3 e2 b6 e1N+ Ke2 Ke4 g7 a3 f5 a2 f6 a4 f7 d3+ Kd2 a3 Kc3 d2 Kb4 h3 Kb5 d4 Nf3 d3 Kc5 h2 Kb5 h4 Kc5 h3 Qc2 d1Q Be3 Qd5+ Kb4 Na6+ Ka4 Nf6 b8Q Nc5+ Kb5 Nh7 g8R Qb3+ Kc6 Nf8 Kc7 Bd7 b7 Ba4 Nd4 Nf3 Nc6 Nd4 Qd8 Rb8 Qc1 d2 Bg2+ Kd3 Na5 Ra8 Nc3 Rc8+ Kd6 Rc7 b8B Rc8 Rb1 a1R Rg3 a2 Rb2 Rg8 Ne4 Rb1 Rg1 h1N Nb7 h2 Ba7 Nf2 Rh3 h1Q Rc2 Qh2 Rh1 Rg3 Qh4 Re8 Kc7 Rf3 Qd8 Ra1 Rg3 Qh8 Kb8 Rb1 Rgh3 Ra1 Qb2 Rc1 Ng3 Rf4 Rc4 Rc3 R1h2 Rf3 Qa3 Kc2 Nh1 Kb1 Qc8 Nfe4 Qb4 Nd6 Qb6 Rf1 Bc6 N6b5 Qbd8 Qc1 Qf6 d1N Qfd8 Nf2 Bb6 Qcd1 Ba7 Rd3 Rc2 Rc3 Bd2 Rf3 Ba5 Rc3 B5b6
4q2B/3pN3/qknrBq1q/N2r1QR1/3q1B2/Q6n/1p1rb2P/nR1Q3K b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 h5 Bb2 exf6 Ba3 f5 Bc1 f4 g4 hxg4 a3 b5 Be3 b3 Bh3 b4 Bf1 b2 Bd2 b3 Bc1 Bb4+ axb4 Ra7 Ra3 Ra5 Ra1 Ra8 Kf2 f5 Kg2 g5 c4 d3 e4 f3+ Kf2 d2 c5 g3+ Ke3 f4+ Kd3 g4 c6 g2 e5 g3 Ke4 f2 Kf3 Rh5 b5 Nf6 c7 Ra2 b6 Ne4 b7 Nc6 b8B Ba6 c8Q Nc5 e6 Rd5 Ne2 g1Q e7 g2 Qc2 d1R Nd2 b1Q Qb2 Qh7 Qa3 Qh6 Nc4 Rad2 Nc3 b2 Rb1 Nb3 Na5 Na1 Be5 Bd3 Bh8 Be2+ Ke4 Rd6 Nd5 f3 Qb7 Qa8 Qb5 Qa6 Nf4 R2d5 Ng6 R1d2 Qbc5 Bd1 Bd3 f1Q Bc4 Be2 Ba2 Qgf2 Rg1 Q1e1 Qc2 Qfa7 Qd1 f2 Bc4 f1Q Bb3 R2d3 Bf4 Rd2 Ba2 Qff2 Bb3 Qfh4 Bc4 Qf6 Ba2 Bc4+ Kf3 Qad4 Bb3 Qee5 Kg3 Be2 Bc4 Kf7 Bb3 Ke6 e8Q+ Qe7 Qd8 Q7f6 Ne7 Qeh5 Qf8 Qe8 Rh1 g1N Kg2 Nh3 Rg1 Bh5+ Kh1 Be2 Bg5 Ke5 Bf4+ Ke4 Rg2 Kd3 Rg5 Kc3 Qa2 Kb4 Qa3+ Kb5 Qf7 Kb6 Qh5 Rb5 Be6 Rf5 Qg4 Rfd5 Qf5
2nb1RN1/r1bp1B1p/1Q2b1b1/BK3PQn/3Nk3/7n/q1qqR3/1b3B1Q b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 h4 g5 a4 gxh4 Bc4 b5 Bf1 b3 Ke2 b4 Kd2 Ra5 Ke1 Rb5 axb5 Qa5 Nd2 Qc7 Nb1 Qd8 Kd2 Kf7 f4 Kg6 c4 Kf5 b6 e5 g3 d3 b7 h3 c5 h2 c6 e3+ Ke1 b2 g4+ Ke4 g5 d2+ Ke2 b3 g6 Be7 g7 Nf6 g8B Nh5 c7 Nc6 b8Q Bb7 c8Q Na7 Qd6 Bd5 Qb7 Nc8 Qe6 Qa5 Qba6 Bd8 Qeb6 Be6 Qaa7 Qa2 Nf3 Bc7 Rg1 h1N Rg7 Nf2 Qaa5 Nh3 Bf7 Re8 Rg2 Bd8 Na3 b1B Nb5 b2 Nfd4 Bc2 Nc6 b1B Nbd4 Bc7 Qa3 Ne7 Na5 Kd5 Bg8 e4 Bf7 Qb3 Nac6 Ra8 Bb2 Qa4 Bc3 Qb3 Qac1 Qb2 Ra7 Qa2 Rb7 Ra5 Rb8 Ra7 Rf8 Nc8 Ba5 Bd8 Rg7 Bc7 Qe1 Bd8 Bg2 d1Q+ Kf1 Bc7 Qd2 Qc1 Ke2 Qcb2 Qh1 Qc3 Ke1 e2 Bf1 Qcc4 Qe3 Bd8 Kd2 e1B+ Kc1 Bf2 Rg2 Bg3 Kd2 Qe2+ Kc3 Qf2 Qd2 e3 Kb4 e2 Qc1 e1Q+ Kb5 Bg6 f5 Qfc2 Ne7+ Ke4 Qg5 Bgc7 Ng8 Qed2 Re2+
N3N3/RRpr3b/bq6/qb3RkP/bB1p4/n2Q2q1/q2Q1b2/2BBn2K b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 g5 axb4 g6 hxg6 Ba3 g5 Bc1 g4 c4 b5 d4 b3 d5 b4 d6 Ra5 Nf3 Qf6 Kf2 Qxd6 Ng1 Rb5 cxb5 Qd2 Kg2 Ke7 a4 Kf6 h4 g5 a5 d5 a6 f3+ Kh2 b2 b6 f2 e4 b3 a7 g3+ Kg2 g4 a8Q Bc5 b7 Nd7 b8B Ba6 h5 Nb6 e5+ Kg5 e6 f5 e7 f4 e8R Nc4 Qe2 Ne7 Qf3 Nc6 Rh2 Qa5 Qd3 Nb4 Qd2 Na3 Qb7 Rh7 Qe3 Nd3 Nd2 b1Q Qb5 b2 Re4 Rd7 Kh1 Qa2 Be2 f1B Nc4 b1B Nd6 Ne1 Qd2 Bf2 Ne8 Bh3 Ra4 Bh7 Bd1 Bf1 Qb3 Bfb5 Ba7 d4 Rb4 Ba4 Ne2 Qb6 Rh4 g2+ Kh2 B6b5 Qbd3 Qa5 Nc3 g3+ Kh3 g1Q Nd5 g2 Nb6 Qf1 Kh2 Qe2 Rbb1 Qee6 Na8 Qc6 Bc5 Qcb6 Bb4 g1Q+ Kh3 Qg4+ Kh2 Qf3 Rb2 Qe3 Kh1 f3 Re4 Qf4 Re3 Qg3 Re4+ Be3 Rf4 f2 Rc2 f1B Rc6 Qba7 Rb6 Bf2 Rb7 Q7b6 Q3c3 Bbc4 Bb2 Qac5 Rc1 Qa1 Ra7 Qb8 Rb1 Bfe2 Bc1 Qa5 Bf8 Qa2 Rb6 Bf1 Bb4 Ba6 Qce3 Qb7+ Qf3 Qc6 Rbb7 Qcb6 Qb3 Bfc4 Qbd3 Bcb5 Rf5+
N2QrbBn/P2pn2N/r6R/n1qq1q2/n7/1R6/nq1QRp1k/NB1K4 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h6 Qd3 b6 Be3 Bb7 Nb1 Be4 Bg5 f4 Qd1 Bf5 gxf5 hxg5 a4 Kf7 e4 Kf6 c4 Ke5 h4 g4 f6 g5 c5 b3 h5 b5 c6 b4 h6 g3 a5 d3 a6 f2+ Kd2 g2 h7 b2 c7 b3 c8R g4 f7 f3 Rc7 Kf4 e5 Kg3 e6 Qf6 e7 Nc6 e8B Nge7 Qc2 Na5 Nh3 g1Q Be2 f1Q Ra2 Qc5 Rg1+ Kh2 Nf4 g3 Rc6 g2 Na3 b1Q Rd6 f2 Nd5 b2 Nb6 Qff5 Qd1 Qa1 Nc2 b1N+ Kc1 Ra7 Na8 Nc3+ Kd2 Qb1 Na1 Na4 Rc2 Qb2 Rh6+ Kg3 Rgh1 g1N R1h3+ Kg2 Qe1 Nf3+ Kd1 d2 Bc4 Ne5 Rb3 Q1d3 Qe3 Rg8 h8Q N5g6 Qf4 Qdd5 Bd3 Rb7 a7 Rb6 Qf6 Nh8 Qb4 Neg6 Qd8 Ra6 Qd4 Ne7 Qf4 Bg7 f8N Kg1 Nh7 Bf8 Bf7 Kg2 Ke2 d1N Rd2 Kg1 Bb1 Kg2 Rc2 Kg1 Qd4 Ndc3+ Kd2 Na2 Kd1 Kg2 Re2 Kg1 Qd2 Kg2 Rhe6 Kh2 Rg6 Bh6 Rd6 Re8 Bg8 Bf8 Rh6+
2K2nRr/B1QB2qn/2R1R3/2r2pp1/q2b1N1r/1B1N4/q1P5/1r1Qn1nk b - - 0 1 legal: proof: d4 a5 h4 g5 g4 c5 b4 axb4 f4 cxd4 h5 b6 f5 Bb7 f6 Be4 Rh2 Bg6 hxg6 exf6 Ba3 f5 Rh1 fxg4 Bc1 g3 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Kg4 a4 h5 a5 f5 g7 d5 a6 g2 e4+ Kg3 a7 b3 e5 h4 e6 h3 e7 h2 e8Q b2 Qe6 d3 Be2 d4 Qc8 d2 Nf3 g1N Qc4 Kg2 Bd3 Nf6 g8B Qe8+ Qc6 Nh7 Qe1 d1Q Be3 Nd7 Ka6 b5 Kb7 b4 Be4 d3 Bc5 b3 Bb4 d2 Be7 Bg7 Qc7 Ndf8 Nc3 b1R Ra6 b2 Bc6 Rc8 a8R Bd4 Bc5 Qc1 Rb8 d1N Ne2 Nf2 Ba7 Nd3 Qd1 Ne1 Bb3 Qd7 Bb5 Qf4 Ne5 Qg7 Re6 Qg4 Nd3 Qf4 Qd7 Rc5 Qc7 Qe4+ Kc8 Qa8 Bb6 Qa4 Ra8 Ra1 Be8 b1Q Ba7 Qba2 Bd7 Rb1 Rc6 Nh3 Rf1 h1R Nef4+ Kh2 Rf3 Ng1 Rb8 Qf6 Re3 Qg7 Nd5+ Kg2 Ree6 Rh4 N5f4+ Kh1 Kb7 Ng6 Rg8 Ngf8 Kc8
B1n4n/p7/KPN1rr2/Q1b2rnr/2pR2Qn/b3B2k/3Rb3/1Q1n2BN b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 b5 a4 bxa4 f5 e6 Nf3 exf5 Ng1 fxg4 Qb3 g3 Qc2 g4 Qd1 Qg5 hxg5 Bc5 Bg2 Be7 Bf1 Bf8 d4 Kd7 Kd2 Ke6 Kc3 Kf5 b4 h5 g6 c5 b5 g2 e3 a3 d5 h4 b6 g3 d6 h3 g7 h2 d7 a2 d8B Rh5 Qe1 Kg4 e4 f5 e5 f4 e6 f3 e7 f2 e8Q Ba6 Nh3 g1N Nf4 g2 Nd3 Nh3 Bf4 g1N Bfg5 Nh6 g8Q Nf3 Bgf6+ Nhg5 Qgg6 Nh4 Be2+ Kh3 Qa4 f1R Bf3 Nc6 Nd2 Ne7 Rd1 a1R Nb3 Nc8 Rd2 Nhf7 Qb1 Nh8 Bd4 Re1 Qb4 Re6 Bg1 Ra5 Nd4 Bd6 Nc6 Rb8 Kb2 c3+ Kb3 c2 Qge4 Rb5 Ka4 c1B Qa5 Ba3 Bf6 Rb7 Bfd4 Rf7 Bde3 Rff6 Qg6 c4 Qe4 Bb7 Qd4 Rbf5 Nf2+ Kg3 Bd5 Bdc5 Kb5 Ba8 Nb4 Bc6+ Ka6 Ba8 Bg2 Bf3 Qd7 Bd1 Ba8 Be2 Nc6 Kg2 Ne4 Kh3 Ng3 Bd1 Bgf2 Be2 Rhd1 h1N Bg1 Nf2 Nh1 Nge4 Rd4 Ng5 R1d2 Nd1 Qg7 Rf3 Qgg6 R3f4 Qge4 R4f5 Qg4+
1kQ2qB1/1qr1R2K/1qn1p2p/1NB2QPN/1pr1R1bQ/2nb4/4n2R/5r2 b - - 0 1 legal: proof: g4 c5 e4 a5 d4 cxd4 b4 axb4 h4 f5 g5 fxe4 f4 g6 f5 gxf5 g6 f4 Nd2 Bh6 Nb1 Bg5 hxg5 Ra5 Qd2 Ra7 Qd1 Ra8 Kf2 d5 a4 Kd7 c4 Kc7 c5 b5 c6 d3 g7 f3 Ke3 b3 Kf4 d4 a5 b4 a6 f2 a7 b2 Ke5 e3 Qc2 d2 Ra2 d1Q Qc5 e2 Ra4 e1Q+ Ne2 d3 Nc3 b1B Be3 h6 Ng3 d2 Bc4 f1R Rh2 Qf2 Nh5 Nf6 g8Q Bg4 Nb5+ Kc8 c7 Qdf3 Ba2 d1N Qgc4 Qf8 Q5d4 Bd3 Qd7+ Kb7 Bc5 Rh7 Qf4 Q3g2 Bg8 Nc3 Ra6 Qfg1 Re6 Nfd5 Qf2 Nf4 Qh4 Qc6 c8R+ Ka6 Re8 Nfe2 Rd6 e6 Re7 Rg7 Rd4 Qb7 Re4 Nc6+ Kd6 Rc8 a8Q+ Na7 Ke5 Rc7 Qae8 Qgf2 Qg6 Nc6+ Kd6 Rf7 Qh7 Rf4 Qf5 Nd8 Ke5 Qg1 Rf7 Nc6+ Kf6 Qd4+ Kg6 Qdd6 Re5 Rc4 Re7 Qd4 Kh7 Qg1 Bd6 Qc5 Re4 Qcb6 Na3 Ka7 Bc5 Ka8 Nb5 Kb8 Qc8+
K1n1Rr2/8/p3P1kQ/1b3n2/b1B3q1/BpQ2Nrp/N1nb1RB1/1qqR4 b - - 0 1 legal: proof: b4 a5 h4 axb4 a4 g5 f4 gxh4 c4 d5 cxd5 e5 a5 exf4 a6 bxa6 Kf2 f5 Kf3 Kf7 g4 h5 e4 c5 d4 c4 d6 b3 d7 c3 d5 h3 g5 c2 e5 h4 d6 h2 e6+ Kg6 Qd3 h3 Na3 Nc6 Bg2 Nge7 Ra2 Bh6 Nb5 Rf8 Qc3 Nb4 Ba3 c1Q Rf2 Qa5 d8R Qa4 d7 Nc2 Re8 Qd4 d8Q Bd7 Nc7 Ba4 Nd5 Nc8 Nb4 Ra7 Qd5 Rg7 Na2 Qb4 Qdd2 Rgg8 Ke2 f3+ Kd3 Qg4 Qe3 f4 Kc4 Rg7 Kc5 Rgg8 Rd2 f2 Nf3 f1N Rf2 Ng3 Rd1 h1Q Qed2 Ne7 Kb6 Ngf5 Ka7 Nc8+ Ka8 Qf1 Nh2 f3 Qde3 Kh5 g6 Qg1 g7 Kg6 Rfd2 f2 Nf3 f1B Rf2 Bfb5 Qf4 Rh8 g8B Qb1 Qc1 Bd2 Bf7+ Kh7 Bh5 Rhg8 Rd8 Rg5 Be8 Qf1 Bd7 Kg6 Re8 Qb4 Bc6 Rg3 Bd5 Qg4 Bc4 Qd3 Qe5 Qc3 Qh8 Qca1 Qcb2 Qc1 Qbc3 Qab1 Qh6+
1R6/R1K4P/QpBpbq1n/q1n2kN1/4n1p1/2Nbr3/2r2qr1/B1RQ2Q1 b - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 g4 h5 f4 hxg4 a5 exf4 a6 Bd6 b5 Bc7 b6 axb6 a7 b5 Ra2 Na6 Ra1 Bb8 axb8Q b4 Kf2 Ke7 e4 Ke6 h4 f5 c4 g5 h5 b3 c5 g3+ Kf3 g4+ Ke2 d3+ Kd2 f3 Kc3 d6 Kd4 g2 e5 b2 c6 f2 h6 d2 h7 f4 c7 f3 Rh6+ Kf5 Kd5 Nc5 e6 Ra2 Rh3 Nh6 e7 Re8 Nc3 b1B Qa7 Rc2 Bb5 f1Q Bc6 f2 Nf3 g1R Bb2 Rg2 Ng5 b6 Rh1 Qe1 Qa6 f1Q Ra2 Bd7 c8R Qff2 Rb8 Bc8 Ba1 Bd7 Kc4 Be6+ Kb5 Qe5 Qg1 d1N Ra5 Qf6 Ra3 Qc7 Ra5 Qa7 Ra3 Rg8 e8Q Rf8 Qec8 Re8 Qa4 Re7 Qca6 Re8 Bb7 Re7 Kc6 Re8 Kc7 Qa8 Na2 Nc3 Bc6 N3e4 Nc3 Qa7+ Qb7 Qa5 Qa6 Rd2 Qad1 Bd3 Ra4 Rc2 Qc8 Qb4 Ra7 Qa5 Qa6 Bc8 Qc1 Ng3 Qh2 Re3 Rd1 Bd7 Qg1 Nge4 Qd2 Bc8 Rc1 Be6 Qdd1
r3N3/4nnP1/pQnBN2r/2p1k3/K4b2/RRq2Q1Q/5rpB/bNb4q b - - 0 1 illegal: No possible last move, all moves rejected
1RnN1r2/Rr1N1PbK/2Q1p2b/1p2qB2/1k3BB1/p2n4/5q2/qnQb3Q b - - 0 1 legal: proof: e4 g5 c4 d5 cxd5 f5 Qb3 fxe4 Qa4+ Nc6 Qd1 Nb8 h4 gxh4 b4 a5 a3 axb4 Rh3 bxa3 Rh2 Be6 Rh1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 h5 Kg6 e6 d4+ Kb4 g4 c5 f4 c4 d6 c3 g5 e3 d7 b6 d5 h3 d6 e2 f5 e1N f6 h4 Bf4 h2 Bh3 c2 Bg4 c1B Ne2 h3 Nd2 Bb7 Nf3 Na6 Ne5 Nc7 Nd4 Qb8 d8Q Nd3 d7 Bf3 Qc8 Rh7 d8Q Bg7 Nd7 Nd5 Qc6 Qe5 Qdc7 Rf8 Rf1 h1Q Rb1+ Nb2 Rf2 Qg2 Qh1 h2 Rc2 Qf2 f7 Nc3 Qc8 Rh3 Q8c7 Rg3 Kh7 Bd1 g6 Ne7 Rd2 Nc8 Rd3 Bf6 g7 Bd2 g8B Bg7 Nf5 Rg1 Nd6 Rg3 Nb7 b5 Rc1 Nb1 Nd8 Rf3 Rd6 Rc3 Rd5 Nd3 Rd4+ Kb3 Ra4 Rc5 Ra7 Kb4 Rc2 Be3 Rd2 Rd5 Qc1 Rd6 Rc2 Rb6 Qcc6 Rb7 Rc4+ Kb3 Rca4 Bd2 R4a5 Kb4 Ra8 Be3 R5a7 Bd2 Rb8 Be3 Qg1 h1Q+ Qh2 Qhe1 Qhh1 Q1c3 Kg6 Qa1 Bh7 Bf6 Kh6 Bh8 Bhf5 Bg7+ Kh7 Bd2 Bg3 Bdh6 Bf4
2r3n1/4pR1N/2k4q/Nr2qb1b/1QNp1p1B/1Kn3QR/P3b1qR/1nB5 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 fxe4 f5 c5 Na3 cxd4 Nb1 g6 h4 Kf7 g4 Ra3 g5 Rf3 f6 Rf5 Bh3 Ra5 Bg4 Ke8 Bf5 gxf5 g6 Bh6 Nd2 Ra8 Nb1 Bg5 hxg5 Qa5 Rh6 Qb6 Rh1 Qd8 Kd2 h5 c4 d5 Kc2 Kd7 c5 b5 g7 h4 f7 h3 f8B b3+ Kb2 e3 g6 e2 Nc3 e1Q Bg5 f4 Qe2 h2 Ne4 d3 Nf3 b4 Nfd2 Qb6 Bh4 Ba6 Nd6 Kc6 Nb7 Rh5 Nc4 d2 Qe4 d1B Rc1 Be2 Rc3 Nd7 Rh3 Ndf6 Qd4 Rc8 Qc3 Kb5 c6 Ne4 c7 Kc6 Qd2 Nc3 Qd4 Nf6 g8Q Re5 g7 Bh5 Qe4 Rg5 Qb1 Qe5 Qe1 Bb5 Qg3 Ba6 Qh7 Qg1 g8N Qg2+ Qc2 Rf5 Bg7 Rg5 Qd2 Rf5 Nh6 Ng8 Nf7 Bb5 Ng5 Ba6 Ncd6 Bae2 Nh7 Rg5 Nc4 Rf5 Kc1 b2+ Kc2 b1B+ Kb3 Rg5 Bf6 Bf5 Bh8 Qe3 Bd4 Qe5 Be3 d4 Qb2 Qg7 Bc1 Qe5 Rf1 h1Q Rf2 Qgg1 Rfh2 Qhg2 Qa3 Q1h1 Kb2 b3 Qb4 Rd8 Ka3 b2 Kb3 b1N c8R+ Kd5 Rb8 Rc8 Ra8 Kc6 Ra5 Qgd5 Ra8 Qde6 Ra5 Qg2 Rd5 Qg6 Rd8 Qh6 Rf8 Rg6 Rf7 Rd6 Qg4 Rd5 Qg3 Rb5 Nba5+
Bnbqqr1k/1pp3R1/R7/1NbPrnq1/Q1R2rpQ/6Nb/3K4/2B1B3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 Bh3 g2 f6 exf6 Nc3 f5 Bg4 fxg4 Nb1 g3 h4 f5 d4 Kf7 a4 g5 e4 Kg7 a5 b3 h5 g4 a6 f4 a7 b2 e5 f3 d6 f2+ Kd2 f1B d7 Bb5 h6+ Kh7 d5 Bd6 e6 Bf1 e7 Be2 e8R Bc5 Nc3 b1Q Nh3 g1Q Nb5 g2 Qa4 Ne7 Rg8 Qg6 Nf4 Nf5 Nh5 Bf1 Rh3 Qe6 Rc3 Qee8 Rc4 Qh2 Rg5 Rf8 Rg7+ Kh8 h7 Qhh4 Ra2 g1R Ra3 Qdf6 d8B Bh3 Ra1 Qfg6 Bf6 Re1 Bc3 Qhd8 Ba5 Na6 Ra2 Rb8 a8B Re5 Rf7 Qdf6 Qb3 Qgg5+ Kc3 Nd4 Kd3 Rg8 Re7 Bf5+ Kc3 Qef7 Nf4 Kg7 Qa3 Rbe8 Bb4 Nb8 Qb3 Re4 Ra6 Rgf8 Qa4 Bc8 Kd3 Nf5 Be1 Qd6 Kd2 Qd8 Rd7 R8e6 Re7 R6e5 Rd7 Qfe7 h8Q+ Kf7 Qh5+ Kg8 Qh4 Qee8 Rh7 Qh6 Rg7+ Kh8 Qf2 Qhh4 Nh5 Rf4 Qg3 Qhf6 Qh4 Qg5 Ng3+
kb2r2Q/2P3r1/2bbQ1q1/4nNp1/2p1r3/2BnN2R/R2pR1Nb/nKB5 b - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 hxg4 Kf2 exf4 Ke1 c6 c4 Qg5 d4 Qe7 c5 Qd8 d5 cxd5 Bg2 Rh7 Be4 Rh6 Bd3 Rh8 Bc4 dxc4 Kd2 a5 Kc2 f5 h4 d5 b4 Kd7 e4 Kc7 c6 g5 e5 a4 e6 d4 h5 f3 e7 a3 e8Q a2 h6 f2 h7 f1R Rh4 f4 Qf7+ Ne7 Qf5 d3+ Kb2 f3 Qe2 d2 Rh3 g3 Rh1 g2 Qf4+ Qd6 Qe6 f2 Nf3 g1B Qh2 Ra7 Nh4 Nd7 b6+ Kb8 b5 Nc5 b7 Ng6 Na3 Ne5 Nc2 Bd7 Ng2 Re1 Nce3 f1N Kc2 Rg8 h8B Ncd3 Bg7 Ra8 Qh8 Bh2 Bf6 Ka7 b8R Rg7 Re8 Re2 Re7 Re8 b6+ Ka8 c7 Bc6 Ng4 Re4 b7+ Ka7 b8N Ka8 Qf7 Qe6 N4e3 Qf5 Qe6 Qg6 Rd7 Bd6 Re7 Nf3 Bc3 Nfe5 Rb1 a1B Rb2 Nf3 Kb1 Nfe5 Ng4 Ne3 Ra2+ Ba4 Nc6 Nc2 N4e3 Bb2 Ng4 Na1 N4e3 Bba3 Nd4 Bac5 Ndf5 Ba7 Re1 Bb8 Re2 Rgg8 Rh7 Rg7 Rb2 Bb5 Rh3 Bc6 Ra2+
1q4NR/1np2Q2/1Bb1NB2/pnP1nQb1/1p5n/B4rk1/5rnR/1KQ4q b - - 0 1 legal: proof: b4 e5 h4 g5 d4 gxh4 b5 f5 e4 fxe4 dxe5 Bh6 a4 Bg7 a5 Bh6 a6 bxa6 b6 Bf8 Bb5 axb5 Kd2 Ke7 f4 Ke6 g4 a5 c4 d5 Kc2 h5 c5 d4 g5 Kf5 e6 b4 g6 e3 g7 h3 e7 e2 e8Q Kg4 f5 h2 b7 h4 f6 h3 f7 d3+ Kb2 d2 Qea4 Nf6 Ra2 Nbd7 b8B Ne8 Qf1 e1N Qa6 d1N+ Ka1 Be7 f8B Nc3 g8Q+ Bg5 Ba7 Kg3 Bb6 Nb5 Qd1 Ned6 Qf7 Ne5 Nd2 Nb7 Bg7 Bd7 Bf6 Rf8 Kb1 Ng2 Ba3 Qb8 Ngf3 Be8 Nd4 Bc6 Qe7 Rf7 Qc1 Rf8 Ne6 Rf7 Bg7 Rf3 Qf7 Rf2 Bf6 Rf3 Rd1 h1N Rc2 h2 Ne4+ Kh4 Rd5 Ng3 Rd8 h1Q Rh8+ Kg4 Ra2 Nf5 Rc2 Nfh4 Rb2 Nd4 Qaf1 Nb5 Qd3 Ne1 Rh2 Neg2 Nd6 Kg3 Nc8 Qa7 Ne7 Rf8 Ng8 Qb8 Qcd1 Rd8 Qe4 Rd2 Qf5 Rdf2 Qc1
q2rR1bQ/1nn2k1B/1r2p3/q5rP/2BQQ1B1/Rp5N/1n1b3p/4r1NK b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 d5 cxd5 axb4 Rh3 fxe4 Rh2 Ra5 Rh1 Ra8 g4 h6 Qf3 Ra6 Qh3 Ra7 h5 Ra5 Qh4 Ra8 Ba3 gxh4 g5 Ra7 g6 Ra6 Bb2 Ra7 Bf6 Ra8 Bg5 hxg5 f4 c5 Kf2 b5 Kg2 h3+ Kh2 e3 d4 c4 a4 b3 a5 b4 a6 b2 d6 g4 a7 b3 f5 e2 f6 e1Q d5 c3 g7 c2 d7+ Kf7 d6 c1N Ra5 Rh6 Be2 Na6 Ra3 Nc7 Nd2 b1R Bb5 Nd3 Ne4 Qa5 Nf2 Nb2 Be2 Qe8 d8Q Re1 Bc4+ Be6 d7 Rg6 Qc8 Nh6 d8Q Nf5 Qb7 Nd6 Qe4 Nb7 Qdd4 Rd8 a8B Bd5 Kg3 h2 Kg2 g3 Nfh3 Nc5 Bc6 Nb7 Bd7 Rg5 Bg4 Qea4 Kf3 g2 Kf2 Qa8 Kf3 Q4a5 g8B+ Ke8 Kf2 Bh6 Bh7 Bg8 f7+ Kf8 Ne2 g1R Kf3 Rg2 Neg1 Rf2+ Kg3 Rf6 Kg2 Kg7 f8Q+ Kh8 Qe8 Kg7 Q8g6+ Kf8 Qg7+ Ke8 Qh8 Rb6 Nf3 Kf8 Rg1 e6 Kh1 Ke8 Rf1 Kf7 Nfg1+ Rf5 Rf2 Bd2 Rg2 Rg5 Rf2+ Ke8 Rf8+ Ke7 Re8+ Kf7 Qc2 Rdd5 Qcd3 Rd8 Q3e4
1b1qNQ1Q/3n2n1/1pRN4/nK2bBN1/rp1rp3/3P2b1/3k2Bn/2B1R1q1 b - - 0 1 legal: proof: f4 a5 e4 g5 g4 gxf4 c4 d5 b4 dxc4 e5 axb4 g5 Bg4 h3 f6 hxg4 fxe5 Be2 e4 Bd3 Qc8 Bf1 Qd8 Ke2 Kf7 a4 Kg6 d3 e5 a5 c5 a6 h5 a7 e3 Qe1 e4 Qh4 b6 Nh3 c3 Ra4 c2 Bd2 c1N+ Ke1 c4 Ra6 e2 Qg3 h4 Ra1 c3 Qf2 c2 Qh2 f3 Kf2 e1B+ Ke3 f2 Nc3 Ne7 Bg2 Nd7 Kd4 f1N Kc4 Nf5 Kb5 Nb3 Bc1 Na5 Qe5 Rh5 Qh8 Bg3 Ra2 Nh2 Re1 Bg7 Qf8 Rb8 a8N B7e5 Nc7 Ng7 Ne8 Rc8 Ra3 Rc4 Ra1 Rd4 Qh8 Kf7 g6+ Ke6 g5 Kf5 Ra3 Nb3 Ra8 Na5 Rc8 Bb8 Rc6 Kg4 Bf4 c1B Bd2 Bb2 Bc1 Ne6 g7 Ba1 g8Q Ng7 Ng1 h3 Nf3 Kf5 g6 Bb2 Re3 Kf4+ Ng5 Ba1 Nb1 Bb2 Nd2 Bc3 Re1 Rh7 Rh1 Ke3 Nc4+ Ke2 Ncd6 Rh5 Ba3 Kd2 Re1 Rh7 Qf8 Rh5 Ka4 Ba1 Nh7 Rc5 Ng5 Rc2 Kb5 Ra2 Bb2 Ra4 Ba3 Nf3 Bb2 h2 Ba3 h1Q Bb2 Nh5 g7 Qg1 g8B Ng7 Be6 Nh2 Ba3 Rc4 Bf5 Bae5 Bb2 Rd4 Bc1+
q3Q3/kQ1Kn1bP/6r1/1pN1R1rb/n1RpNBN1/B4qr1/r3b2p/6B1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 h5 g4 hxg4 h4 a5 Bh3 f5 exf5 axb4 Qd3 gxh3 Qf3 Ra3 Qd1 Ra8 Kd2 g5 Kd3 d5 c4 Kd7 a4 Kc7 f4 Kb6 a5+ Ka7 c5 b5 c6 e5 c7 g4 a6 b3 f6 b2 f5 g3 h5 g2 f7 h2 f6 Ba3 f8B Bg4 c8Q Kb6 h6 Bh5 h7 Ne7 a7 Na6 f7 Rg8 Qe1 Rg3+ Nf3 g1R Nd2 b1R Ne4 Bb2 Bf4 Rc1 Ra5 Rc6 Ra4 Rcg6 Rc4 R3g5 Bg7 R1g3 f8B Qe8 Qe3 Qc6 Re1 Nc5+ Kd2 Na4 Kd3 Nf5 Ba3 Ne7 Qe8 Ka6 Qg1 Kb7 Qh1 Bc3 Kc2 d3+ Kb3 d2 Re2 Bd4 Kb4 d1B Re1 Be2 Bf6 Rc8 a8N Ka7 Nc7 Qa8 Ne6 Rc6 N6c5 Ra6 Nfd2 Ba1 Nf2 e4 Ng4 e3 Nde4 Be5 Bg7 d4 Bh6 Bg7 Qg2 Bd3 Qh1 e2 Be3 Rd5 Bhf4 Rdg5 Bg1 Ra5 Rd1 e1Q+ Rd2 Qe3 Re2 Qf3 Nc3 Nb2 Nd7 Be5 Kc5 Rg7 Bb4 Ra2 Ba3 Qf2 Re3 Bf6+ Kd6 Na4 Re5 Be2 Nc5 R7g6 Kd7 Bg7 Qd5 Qe3 N3e4 Qf3 Qb7+
2B1kn2/n2nRbKp/1R3RQ1/nq1qN1r1/1BQP4/5Bpr/q2p4/4N1b1 b - - 0 1 illegal: No possible last move, all moves rejected
N2kqRNb/1b3p2/b3n3/p1B2Q1r/r1RQ2K1/2q4r/1P1p1Q1B/3nrN2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 c4 a5 h4 g5 e4 d5 Ke2 g4 h5 Be7 e5 Bd6 h6 Bb7 b6 Na6 h7 Ne7 c5 Nc7 c6 Nf5 e6 Be5 e7 Ne6 c7 Ne3 Qd2 Nd1 Nh3 g1R c8Q g2 Nf4 g3 Kf3 d3 Nh5 d4+ Kg4 Re1 Qf2 g1R Be3 g2 Ra4 d2 Rc4 d3 Bc5 Rgf1 Rh2 g1Q+ Rg2 Ba6 b7 Qh1 Rg1 Qc6 b8B Bg7 Bg3 Re4+ Bf4 Rfe1 Rh1 Rb8 Rh4 Re5 Bh2 Rb4 Rh3 Ra4 Rh4 Nd4 Qcf5 Ne6 Rh3 Kd7 e8N Bf6 Nc7 Qe8 Na8 Kd8 Rg3 R5e3 Rg2 Rh3 Rg3 Bg7 Nf6 Qc7 Re3 Qe5 Rg3 Qc3 Ng8 Bf6 Qe4 Ne3+ Kf3 d1B+ Qe2 Qe5 Ne7 Qd6 Nd2 Qb6 Nf1 d2 Qf4 Bc2 Qf2 Nd1 Qg4 Qb4 Qg6 Rg8 h8Q Qc3+ Qd3+ Bd4 Qf6 Rg7 Qf5 Rg5 Qde3 Rgh5 Qed3 R3h4 Rg8 Rh3+ Kg4 Bb1 Qde3 Bh8 Rf8 Be4 Ng8 Beb7 Qd4+
3kQNrR/1B2p2q/3qnpN1/Kb1rrr1R/B7/n3n3/1QP3p1/1b2B1N1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 f4 g5 e3 dxe3 Qd6 g3 Qd1 g4 Ba3 Bh6 Bc1 Bg5 fxg5 Ra7 Nf3 Ra5 Ng1 Ra8 a4 b5 h4 d5 g6 g2 g7 g3 h5 b3 a5 d4 h6 b4 h7 f6 a6 e2 Kd2 e1R a7 d3 Rh3 b2 Qg4 b3 Kc3 d2 Kb4 d1R Bg5 Ba6 Qe4 Qd6+ Ka5 Nd7 Qa4 Bb5 Qa3 Nf8 Rh5 Nh6 g8Q Rd5 Nc3 b1N Bd2 b2 Ne4 Ng4 Ng5 Ree5 Ne6 Ne3 Be1 Rc8 a8B Rcc5 Qc3 Na3 Bb7 b1B Qb2 Kd7 Qf7 Rg8 h8N Rf5 Ng6 Rde5 Nef4 Ne6 Nf8+ Kd8 N4g6 Rcd5 Bc4 Re4 Bb3 Ree5 Nh3 g1Q Ba4 Qh1 Ng1 g2 Rh8 Ba2 Rd1 Bb1 Qe8+ Kc7 Rd4 Qh6 Rh4 Qh7 Qc6+ Kd8 Rh6 Qb8 Rh5 Qd6 Qe8+
k1b2n2/1Rp3Q1/qR1rN1B1/Q1b2pBq/1pq4Q/5r1q/1P1NR2n/6bK b - - 0 1 legal: proof: f4 g5 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Bc5 Qd1 Bf8 a4 Nc6 h4 gxh4 e3 fxe3 a5 Nb4 a6 Nxa6 Qc2 Nb4 Qd1 Na2 d4 Kd7 g4 f5 g5 h5 d6 Kc6 d7 a5 g6 b5 g7 Kb7 d5 a4 d6 e2 Kf2 e1B+ Kg2 h3+ Kh2 a3 Qa4 h4 Qd1 b4 Qd2 Ne7 g8Q Nc3 Qe3 a2 Qc5 Ne2 Qg7 Nd4 Bf4 Ng6 Bb5 Ra3 Bh6 Rf3 Bd2 Rh6 Bc1 Bf2 Ne2 Ka8 Re1 Bg1+ Kh1 h2 Bg5 Qe7 d8Q Qe6 d7 Qc4 Qb6 Bc5 Nf4 Nf8 Nd2 Rd6 Rad1 a1Q Ne6 Qa6 Qa5 Rf1 Qdf6 Nf3 d8R Rf2 Be8 Rf1 Bg6 Rf2 Re4 Rf1 Kg2 h3+ Kg3 h1Q Re2 h2 Ra1 Rd4 Rd6 Rf2 Rb6 Rd6 Qd4 Qg2+ Kf4 Qf1 Kg3 h1Q Qh4 Nh2 Ra4 Qd1 Rb7 Qhd5 Ra3 Rf3+ Kg2 Qdd3 Kh1 Qe3 Bd8 Qh6 Bg5 Qh5 Rae3 Qf1 Re4 Qh3 Rd4 Rd7 Rd6 Rd8 Rc6 Rd6 Rcb6
kb1bBN2/1Pq1QpK1/n2b1rpR/1Q3p2/5rN1/q3R2n/4Q2n/1bB3N1 b - - 0 1 legal: proof: g4 h5 a4 hxg4 d4 b5 axb5 c5 f4 cxd4 f5 e6 c3 dxc3 Ra5 exf5 Ra4 Qb6 Ra1 Qd8 Kf2 a5 Ke3 d5 Kd4 Kd7 Ke5 Kc7 h4 Kb7 e4 d4 b4 c2 h5 a4 h6 a3 h7 g6 b6 g3 b5 a2 Qd3 g2 Ne2 g1B Rh6 Be6 Na3 Na6 Nc4 Nf6 Ne3 Qd7 Qd1 d3 Ng4 d2 Bg2 Kb8 b7 Bb6 Ng1 Bd8 Qe2 d1N Bh1 Ka7 b8N Nf2 Bf3 Qc8 Nd7 Nh3 Rb1 Rb8 Rb3 Rb6 Re3 Ka8 Bg2 Rd6 b6 Qc7 Qb5 Bfe7 Nf8 Bc4 Bf3 Bd3 Be2 Nh5 Bf3 Ng3 Bd1 Nf1 Be2 Rg8 h8Q Nh2 Qf6 Rd4+ Qd6 a1Q Bf1 Qa3 Bg2 Qc6 Qc7 Bc5 Qe7 Qc7+ Kf6 Bd6 e5+ Re4 Bf1 Rf4 e6 Rh8 Kg7 Be4 Bb2 c1B Bd3 Bd2 Bc1 Be1 Bc2 Bg3 Ba4 Bb1 Qe2 Rc4 Be8 Rc6 Qf6 Bge5 e7 Bf4 Rh4 Rh5 Qfb2 Rg5 Rh6 Rh5 Qbb5 Rh4 Bd7 Bg3 e8Q Bgf4 Qe7 Bg3 Nf2 Rf4 Be8 Bc5 Bb2 Rf6 Bc1 Bd6 Ng4 Ra4 Qed7 Qc8 Qf2 Bb8 Qc2 Bgd6 Qe7 Qc7 Qce2 Rf4 b7+
n1nNB1Q1/5br1/p1RN4/2BrR3/1KQ5/1p2r2q/NpP1rrQ1/r3k1b1 b - - 0 1 legal: proof: b4 e5 a4 c5 h4 cxb4 d4 exd4 e4 g5 a5 gxh4 a6 f5 exf5 Qa5 Ne2 Qxa6 Ng1 Qa2 Kd2 Ke7 g4 Kf6 f4 b5 Nh3 h5 Ba3 d5 Bg2 b3 Qe1 d3 Kc3 b4+ Kd4 b2 Rf1 a6 Ng1 h3 Bf3 h2 Qe3 h1R Qe1 h4 Bd1 d2 Rf2 h3 Kd3 h2 Qf1 d4 Qh3 Rh7 Nc3 Nd7 Re2 Qb3 Re5 Ne7 Rb1 Nb6 Ne2 Rf1 Ng3 h1R Qg2 Rg7 Be2 Qe6 Na2 Rh2 Bd1 Rf2 g5+ Kf7 f6 Kg6 f7 b3 Ne4 Qh3+ Bf3 Ra7 Rd1 Na8 Kc4 d3 Bc5 Be6+ Kb4 Nc8 Nd6 Re7 Bc6 Kh5 g6+ Kh4 f5 Re2 Rh1 d1R f6 d2 Be8 Ra1 Rf1 d1R Rh1 Rh7 g7 Rd5 g8Q Bg7 f8N Bf7 Rf1 Bh8 Rg1 Rg7 Ne6 Rf2 Nd8 Re2 Qf1 Rhf2 Rg6 Re3 Rh6+ Kg3 Qc4 Ree2 Rg6+ Kf3 Rh6 Kg2 Rg6+ Kf1 Rh6 Ke1 Rg6 Be6 f7 Re3 f8Q Bf7 Reg5 R7e4 Re5 Ree2 Qe7 R4e3 Qb7 Rh7 Re7 Bd4 Rf6 Rg7 Rfe6 Rdf5 Qg2 Rd5 Rg6 Be5 Rge6 Bh2 Re5 Bg1 Rc7 Rd4 Rc6 Rdd2 Qg6 Rd5 Qg2
3k3b/2B1NPrB/1nR3pB/1n3Rn1/7p/2q2r1b/pn2Qn1K/1QNRn3 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 h4 fxe4 g4 g6 h5 gxh5 g5 h4 g6 hxg6 f4 a5 Kf2 d5 Kg2 e5 b4 d3 c4 a4 c5 d4 c6 a3 f5 d2 c7 e3 b6 e2 b5 e1N+ Kh3 e4 b7 d3 b6 a2 Bg2 e3 Bf3 e2 Bc6+ Nd7 b8Q Qf6 b7 Nc2 Bd5 e1N Ne2 Bg7 Kh2 Nd4 Rf1 Nb5 Nbc3 Nh6 Bg8 Ra3 Bh7 Nf7 Nd5 Nb6 Ne7 Qc3 f6 Rg8 Rf5 Ng5 f7+ Kd7 Qc2 d1N Bd2 Nb2 Rd1 Bh8 Nc1 Rg7 Be3 Ne6 Bh6 Ng5 Qe2 d2 Qa8 Qc2 b8B Rf3 Qae4 Qc3 Qb1 Ng2 Rg1 d1N Rf1 Nf2 Re1 Bb7 c8R Ba6 Rh1 Ne1 Rc6 Kd8 Bd6 Bc8 Rg1 Ned3 Rd1 Ne1 Rfd5 Bg4 Rf5 Bh3 Bc7#
Qrb1q3/K5N1/1BN1bb2/3p4/P1B1R1kb/RpB1Q3/3p2nQ/1bqnn3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 h5 c4 hxg4 Qa4 b5 Qc2 b3 Qd1 b4 Bb2 Ra5 Bc1 Rb5 cxb5 Rh7 Qd2 Rh5 Qd1 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 d5+ Kd3 g5 a4 f3 h5 g3 e4+ Kg4 b6 f5 h6 f4 h7 b2 b7 b3 e5 g2 e6 Nh6 e7 Bg7 e8Q Nf5 Qe7 Nc6 b8B Ne5+ Kd2 d3 Kc3 d2 Kb4 Nh4 Kc5 Bf6 Nc3 b1B Qe2 Qe8 Kb6 Nd3 Ka7 Ne1 Nh3 g1Q+ Q7e3 Nhg2 Na2 Rf8 Qa6 f2 h8Q f3 Bc4 f1B Bc7 f2 Nf4 Be2 Nh5 f1N Qa5 Bed3 Bb2 Bdf5 Qh7 Bfe6 Ng7 Rh8 Rh5 Qh1 Qeb6 Nfe3 Nb4 Nd1 Ra3 Qg1 Nc6 Qc5 Ba6 Qc1 Bc3 Nh4 Kb8 Bcd7+ Kb7 Kf3 Bb4 g4 Bf8 g3 Bb5 g2 Re5 g1B Bc4 Kg4 Qe3 Qe7 Bb6 Nhg2 Qa8 Bf2 Qh2 B2h4 Ka7 Qf7 Bfc5 Rb8 Bd4 Qe8 Bc3 Bc8 Re4+
2QqBkN1/1R2qr2/b1rp2n1/1r1P1R2/K1pp1rb1/Q2r1B2/1N3RN1/6b1 b - - 0 1 legal: proof: c4 b5 b4 g5 d4 a5 e4 f6 h4 gxh4 e5 fxe5 d5 Na6 Bb2 Nc5 Bd4 exd4 Qe2 Na4 Qd3 Nc3 Qf3 axb4 Qd1 b3 Rh2 b4 Rh1 Nb5 cxb5 Ra5 Nf3 Ra4 Ng1 Ra8 Kd2 c5 g4 e5 a4 h5 f4 h3 g5 h4 b6 d6 b7 c4 b8Q h2 g6 b2 Kc2 e4 g7 h3 a5 e3 f5 e2 a6 e1Q a7 Ne7 g8N Rh4 f6 Ba6 Ne2 Ng6 Qc8 Bh6 f7+ Kf8 Nbc3 b1R Ra2 Rb3 Na4 Rf4 Qc1 Rd3 Qa3 b3+ Kb2 Bg5 Rg1 h1B Bg2 h2 Bf3 Bh4 Rg5 Bf2 Rf5 Bg1 Ra1 Rb8 a8B Rb6 Rb1 Rc6 Bb7 Bg2 Ba8 h1R Bb7 Rc7 Bc6 Bh3 Bd7 Rc6 Be8 Kg7 f8R Bg4 R8f6 Rh7 Rf7+ Kh8 Rb7 Rf7 Rc1 Kg7 Rc2 Kf8 Rd2 Re4 Nf4 Qeh4 Re2 Qhe7 Ng2 Rf4 Rc2 Rc3 Rf2 Rd3 Kb1 b2 Ka2 b1R Nb2 Qdc7 Qb3 Qcd8 Ka3 Rf6 Ka4 Rf7 Nd1 Rb2 Qa3 Rb5 Nb2
1r1n1Rrk/1R4NP/rNQ3Q1/7R/3prB1K/2rBp2p/2bqb3/1qb1B3 b - - 0 1 legal: proof: d4 a5 h4 g5 e4 h5 g4 f5 b4 axb4 d5 fxe4 d6 cxd6 Ba6 d5 Bc4 d4 Bd3 Na6 Bf1 Nc7 Nh3 Nd5 Ng1 Nf4 Bc4 gxh4 Bf1 h3 Qd2 h4 Qd1 Nh5 gxh5 Rh6 Qe2 Rh7 Qd1 Rh8 a4 Kf7 c4 Kg7 f4 d5 Kf2 e5 f5 b5 c5 d3 a5 h2 c6 d2 c7 h3 Kg3 b3 a6 e3 a7 e4 Ra2 b4 Nc3 b2 Bc4 b1R Na4 e2 Bd3 e1R Nf3 b3 Ng5 b2 Qg4 d1B Kh4 Ba6 c8Q Ba3 Bf4 Bc2 Qc6 Nh6 Nb6 Rg8 f6+ Kh8 Ne6 Nf7 h6 d4 Rg1 h1R h7 Re2 Rg2 Rhc1 Qg6 Ra1 Rf2 b1Q Rb2 Rb8 a8R Qd6 Rb4 Nd8 f7 Qc5 f8B Qa5 Rb3 Qd2 Bb4 Bb2 Rg2 Bb5 Rg5 Ra6 Rh5 Re3 Bf1 Be2 Ng7 Re1 Bc3 Bc1 Ba5 Rc3 Rbb5 Bg4 Bd3 Re2 Na4 Re1 Rb7 Be2 Nb6 e3 Rf7 Rg1 Raa7 Rg5 Rab7 Re5 Rf8 Re8 Bg3 Re7 Be1 Re5 Bb4 Re8 Bd6 Re4+ Bf4
2R1nNR1/Kp3P2/Nr4q1/2Q1rQ2/7r/p3rnrp/1B5q/RNq1b1Bk b - - 0 1 illegal: No proof kernel
2n1q3/3kq3/p1bPb2R/2B3n1/B3nQBQ/br3q1N/1Npb2p1/KNR5 b - - 0 1 legal: proof: f4 b5 c4 d5 a4 dxc4 f5 bxa4 f6 exf6 g3 f5 Qc2 f4 Qb3 Ke7 Qd1 Ke8 h4 g5 Nf3 a6 Ng1 Ra7 Nf3 Rb7 Ng1 Rb5 Ra3 g4 Ra1 Rg5 hxg5 fxg3 e4 c5 d4 f5 Kd2 h5 Kc2 h4 b4 c3 e5 a3 b5 g2 e6 g3 d5 a2 g6 f4 g7 c4 e7 f3 b6 f2 b7 h3 Be3 h2 Qe1 Be6 Bc1 Rh3 Qe2 Kd7 e8N Nf6 g8B Nc6 b8Q Qe7 Qb5 Ne4 Qb4 Na7 Bh6 Nc8 Kc1 c2 Be3 Bh6 Kb2 c1B+ Kc2 c3 Qh5 Bf8 Nd6 Bd2 Be2 f1Q Bg4 Qf3 Bc5 Qe8 Kb3 c2+ Kb2 Be7 Nc4 Bf8 Ne2 g1N Qh4 Bd6 Nf4 Be7 Nc3 Bf8 Rc1 a1Q+ Kb3 Qa4+ Kb2 Qe7 Nb1 Qb5 Ka1 Qb8 Nb2 Qe5 Qc4 Qe8 Bb6 Ba3 d6 Qg7 Rd1 Qge7 Qb4 Qe2 Bc5 Nf3 Bf7 Nfg5 Rc1 Qf3 Qd4 Bf5 Bb3 Be6 Rhf1 h1B Rfe1 Bg2 Rh1 Bf1 Qb4 g2 Ba4+ Bb5 Qc4 Rg3 Nh3 Bc6 Qd4 Qff6 Qe5 Rb3 Qf4 Qc3 Rh2 Qf3 Qhg3 Bb5 Nf2 Qf6 Rh6 Qfe7 Nh3 Bc6 Qh4
R1rr2N1/2k1PBK1/pB1rp3/3rR2q/2Q1Qqp1/n3n3/3N1N1Q/1b4nq b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bc1 h5 f4 hxg4 e3 dxe3 f5 e6 Qe2 Ke7 f6+ Kd6 Qd3+ Kc5 Qd1 Be7 fxe7 Kc6 Ke2 f5 Kd3 g5 Kd4 d5 Ke5 a6 h4 d4 c4 a3 b4 g3 h5 g2 h6 a2 b5+ Kc7 c5 f4 h7 e2 c6 e1Q+ Qe2 g4 Qe3 d3 Nh3 g1N Ba3 d2 Bc5 d1R Nd2 f3 Qe4 f2 Bd3 f1Q Nf2 Nh6 Kf6 Qe8 Kg7 Nd7 Rh2 Rf8 h8N Bb7 Nf7 Rd8 Rb1 a1R Rh5 Rc8 Re5 Nb6 Bc2 Nc4 b6+ Kb8 Rb3 Na3 Rd3 Qe3 Rd8 Qf4 Bb1 Ba8 b7 Kc7 Bd3 Rab1 Bc2 Rb5 Bb1 Ng8 Nh6 Nf6 Ng8 Nd5 Bc2 Ne3 Bd3 Rb6 Bb1 Qh5 Re8 Kb8 c7+ Ka7 Bd3 Qfh3 Bb5 Qh1 Bc6 Rd8 c8Q Rd5 Ba4 Rd8 Qcc6 Kb8 Qb5 Rd6 Qbc4 Rc8 Rd8 Kc7 Be8 Rd5 Bf7 Rd6 Nb3 R1d5 Nd2 Re8 b8Q+ Kc6 Rd7 Red8 Ra7 Bb7 Ra8 Kd7 Qe2 Bc6 Qbb4 Kc7 Qbc4 Bb5 Nh3 Ba4 Qh2 Bc2 Nf2 Bb1 Bb6+
2KR2QN/6B1/1k2Rq2/4pQ2/QBb1bPb1/pn1p1nb1/2N2n1R/r1bn4 b - - 0 1 legal: proof: f4 g5 a4 b5 d4 bxa4 h4 a5 e4 g4 h5 c5 Be2 cxd4 Bf3 gxf3 g4 f5 g5 fxe4 Rh2 Ra6 Rh1 Rg6 hxg6 Bb7 Bd2 Ba6 Bc1 Bc8 Kf2 d5 Kg3 Kd7 Kg4 Kc6+ Kh4 e5 c4 h5 b4 f2 b5+ Kb6 g7 f1B Ra3 d3 Bd2 e3 Bb4 d2 Rh2 d4 Nf3 Nf6 g8R e2 g6 e1B+ Kg5 h4 g7 h3 Nh4 Bg4 Ng6 Bg3 Qb3 Rh7 Nh8 d1N Qc2 Nc6 c5+ Kc7 Rc3 a3 Qa4 a2 Na3 a1N Nc2 Nb3 b6+ Kb7 Kg6 Ne4 Kf7 Qf6+ Ke8 Nef2 Rc4 Ka6 b7 Bd3 Rc3 Bc4 b8B d3 Bd6 Ncd4 c6 Kb6 c7 Nf3 c8Q Rh5 Qf5 Rg5 Rg2 h2 Kd7 h1B Kc8 Be7 Rd8 Rg6 Qa2 a4 g8Q Bf8 Rh2 Rg7 Ba3 Ra7 Bdb4 Bc5 Qa1 Be3 Bf8 Bc1 Bab4 Nfd4 Bg7 Be4 Qa3 Nf3 Qa1 Bcd5 Rc5 Bf7 Qd4 Bc4 Qdd7 a3 Qa4 Rb7 Bh6 Rh7 Bg7 Rh5 Rc7 Rh4 Re7 Rh5 Rg2 Rh1 Re6+ Bc6 Qh5 Be3 Nf7 Nc3 Bh6 Ra1 Bg7 Ncd1 Nh8 Bd2 Qf5 Bc1 Ree8 B6d5 Rh2 Be4 Re6+
r1B5/RK5Q/Q3pb2/kn1R2pN/1n1PNQn1/2rqB1q1/3np2N/4n1n1 b - - 0 1 illegal: No possible last move, all moves rejected
2q1b1Q1/np2Rb2/1bp1Q1nn/BrN4K/4n3/N1PpB3/3nN1B1/3k2Rb b - - 0 1 legal: proof: b4 e5 a4 a5 h4 axb4 e4 f5 d4 exd4 a5 fxe4 a6 g5 a7 gxh4 Ke2 Na6 Ke1 Rb8 a8Q Qg5 Qxb8 Qd8 Ke2 Ke7 f4 Kf6 g4 h5 c3 d5 g5+ Kf5 g6 Kg4 g7 h3 f5 h2 f6 e3 f7 d3+ Ke1+ e2 Kf2 d2 Qe1 d1B Bg2 c6 Ra3 b3 Ra4+ d4 Bf4 d3 Ra1 b2 Qd2 e1N Qe3 h4 Qee5 h3 Qc5 Nh6 g8N Bd7 Be4 Be8 Bg3 Ng2 Bh4 Nf4 Qe3 Bc5 f8B Bb6 Ne2 Nc7 Bg2 Nb5 Bg5 Bb3 Na3 b1N Re1 h1B Bf1 h2 Bb4 Qc8 Ba5 Ng6 Bf4 Na7 Nf6+ Kh4 Ne4 Kg4 Qa8 Nd2 Nc5 Rf8 Qe5 Rf5 Ke3 Bbf7 Qe6 Be4 Rad1 h1N Rb1 Ng3 Kf2 Nf3 Be3 Bd5 Kg2 Nd2+ Kh2 Kf3 Kh3 Nge4 Qb8 Qd7 Qd8 Qc8 Qg5 Nf4+ Kh4 Ng6+ Kh5 Bc4 Na6 Rb5 Nc5 Bd5 Qd8 Bd7 Qf8 Be8 Qg8 Nh4+ Qeg6 Ba2 Ng3 Ng5 Bd4 Bfd5 Re7 Bdf7 Bh3 Bad5 Rg1 Be4 Be3 Bed5 Nf5 Ke2 Bf1+ Kd1 Ng3 Bh1 Ne2 Nge4 Nc2 Bb3 Na3 Ba2 Q6f7 Ng6 Qf6 Baf7 Qd6 Bc7 Qe6 Bb6 Bg2+
1RR2q2/3Nb3/k1bNr1Qn/3p1q1p/b1B1Npr1/8/P4bB1/KB1rQr2 b - - 0 1 legal: proof: f4 a5 e4 g5 d4 f6 b4 axb4 g4 c6 h4 f5 h5 fxe4 Bd2 c5 f5 cxd4 Be3 Nc6 Bf4 gxf4 g5 Ne5 Bb5 Ng6 hxg6 Qb6 Bf1 Qd8 Kd2 e5 Kc1 b5 Kb2 d5 c4 Kd7 g7 Kc6 f6 Kb7 g6 h5 c5 d3 f7 d2 c6+ Ka6 c7 e3 Bg2 e4 Qb3 d1R Nd2 e2 Ngf3 e1B Rh2 e3 Nd4 e2 Qe3 b3 Rh3 b4 Qg1 Be7 f8N Bf2 Nf5 e1R Rc3 Bb7 c8B Rf1 Rb1 Rh6 Nd7 Qf8 Nd6 Rb8 N2e4 Ra8 Rbc1 Rb8 Kb1 b2 Rb3 Ra8 Kc2 b1B+ Kb2 Ra7 Ka1 Bc2 Rb2 b3 Rbb1 Nf6 g8B Ng4 g7 Re6 Bh7 Nh6 g8Q Ra8 Qg6 Ra7 Ne5 Ra8 Bd7 Rc8 Ba4 Bc6 Nd7 Re8 Qf5 Rg6 Qh1 Rg4 Qg6 Bd8 Qh4 Re6 Qg3 Be7 Qe3 Bd3 Qe1 Bdb5 Rc2 Ba8 Rc8 Bb7 Rb8 B7c6 Rc1 b2+ Kb1 Rd4 Bb3 Rd3 Bc4 Rd1 Kc2 b1Q+ Kc3 Qd3+ Kb2 Ka7 Ka1 Ba4 Nd2 Qdf5 N2e4 Bcb5 Rc8 Bc6 Rb1 Rd2 Rb5 Ka6 Rbb8+ Bab5 Qg7 Q5f7 Nef6 Rd1+ Bb1 Qg6 Nfe4 Qgf5 Bb3 Ba4 Qg8 Ba7 Qg6 Bf2 Bc4+
B1RQ1q2/3qRqn1/n5p1/1B1rp3/5Rr1/1pQ1nNPN/3qk3/K2Nbn2 b - - 0 1 legal: proof: d4 h5 b4 c5 g3 cxd4 b5 h4 b6 h3 Qd3 axb6 Qa3 b5 Qf3 b4 e4 d5 Qf4 d3 Qe5 d4 Bf4 f6 Qd5 Be6 Be5 fxe5 Qc4 Bd5 exd5 Nf6 Qc8 Ng8 Qg4 Ra3 Qe4 Ra8 Qg2 hxg2 Kd1 Kd7 Kc1 Kd6 Kb2 Kc5 h4 Kc4 f4 b5 a4 g6 c3 e4 f5 e5 f6 e3 a5 b3 f7 b4 h5 e2 d6 e1Q d7 Nh6 a6 Nf5 a7 Na6 h6 Ng7 Ra2 Qd2+ Ka1 Rg8 Nf3 g1Q h7 Qgf2 Ra4 b2+ Ka2 Be7 h8N Qf8 Rh2 Bd8 Rh6 Ba5 d8Q Rc8 a8B Rc5 Rh7 Rd5 Ng5 Qf5 Nh3 Qd7 Bc6 Qf2 Bg2 d2 Ba8 Kd3 c4 d1Q c5 Qde2 c6 Qd2 c7 Ke2 c8Q d3 Qc3 Rd4 Bgd5 Rg4 Bc4 Qff4 Bb5 Qf3 Na3 b1N+ Ka1 b3 Rf4 Qc1 Ng5 Qdd6 Qcc8 Qe8 Rf5 Nh5 Qf6 Be1 f8R Nd2+ Nb1 Nf1 Nh3 Qde7 Rhf7 Ng7 Qc5 Qec6 Rc8 Rd8 Qb4 Qfd5 Rf4 Qf8 Qd4 Rd6 Qd8 Qd7 Re7 Qdc4 Qc5 d2 Nf7 d1N Nfg5 Qd2 Nf3 Nde3 Qc6 Rd3 Qc5 Qcf7 Qd4 Nc4 Qc5 Rd5 Nc3+ Kd3 Nd1 Ke2 Ba4 Nce3 Qc3 Rd3 B4c6 Rd5 Bb5+
rB1q3q/4q2N/5p2/pBQ1r3/Q1b1P2K/Nn1qQ1R1/1r1n1p1B/R1rk4 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 b5 a4 bxa4 h4 e5 h5 exf4 b5 Bb4+ c3 g6 cxb4 gxh5 Ba3 h4 Bb2 Qe7 Bc1 Qd8 Kf2 Ke7 g4 Ke6 e3 Kd5 b6 Ke4 b7 a5 b5 d5 b6 h5 g5 a3 g6 a2 g7 d3 Kg2 f3+ Kh2 d2 Bh3 Kd3 Bg2 f2 Bb2 d4 Na3 h3 Kg3 h4+ Kf3 h2 Ne2 h3 Kg3 Nf6 g8Q Nc6 b8B Be6 b7 Bc4 Bc7 Qe7 b8Q Rh5 Qh7+ Ne4+ Kg4 f6 Bd6 Re5 Qg1 d1Q Qh4 Kd2 Bf1 d3 Qf8 Nd4 Qgg3 Nb3 Rg1 h1R Bb8 h2 Kh3 Ke1 Nf4 d2 Ng6 Qb1 Qgg5 d1Q Rg3 Qbd3 Qe8 Qdd8 Nf8 Ned2 Nh7 Qb1 e4 Kd1 Qhh6 Rg1 Bc1 Qbd3 Qa4 h1Q+ Kg4 Qh2 Qf8 Qh6 Qe3 Qhg7+ Kh4 Qh8 Bh3 Re1 Bd7 Re2 Bc6 Qee8 Qfc5 Qee7 Rb1 a1R Bb5 Ra2 Ra1 Rc2 Bb2+ Rc1 Bc3 Nf1 Bd4 Rb2 Bc3 Nd2 Bd4 Rg5 Bde5 Rf5 Rg2 Rg5 Bh2 Re5 Rg3
3r4/r2RB2Q/R2B4/2np2pQ/1P1Q1nbk/pb1r1bN1/bN1B1K1b/1r6 b - - 0 1 illegal: No possible last move, all moves rejected
1rN5/QPBb1nR1/Qb3Rp1/2RrBr2/3n1k2/ppB2rn1/7b/KN1b4 b - - 0 1 illegal: No possible last move, all moves rejected
QBQ1n1NK/P2RB3/2p1b3/p1nRBrr1/1rb5/3Qb1n1/2p5/2k1rb1N b - - 0 1 illegal: No proof kernel
4rN2/3N1n2/p6Q/Bbq1pRpK/2b1Nr1R/nn3B1P/1qb2B1p/1k5Q b - - 0 1 illegal: No extended proof kernel
Q1q3B1/4p2P/nR2rrkp/1B1p4/q1N4p/1bQ1Q1b1/1R1K3N/2Bbr2n b - - 0 1 legal: proof: d4 a5 h4 g5 e4 c5 g4 cxd4 b4 axb4 e5 Qb6 e6 gxh4 g5 fxe6 Bb5 e5 Bf1 e4 g6 h6 Bd3 Qf6 Bc4 Qf7 Bf1 Qh7 gxh7 Ra3 Qe2 Ra7 Qd1 Ra8 f4 Kf7 a4 b5 c4 d3 f5 e3 c5 e2 f6 b3 a5 b2 c6 d2+ Kf2 e1R a6 b4 c7 b3 a7 Bg7 Ra2 Na6 Qc2 d1B Nc3 b1Q Nd5 b2 Qe2 Qc2 Ke3 b1Q Nb6 Qb5 Nf3 Qba4 Nh2 Kg6 f7 Be5 f8Q Nf6 Rb2 Bg3 Nc4 Nh5 Qf3 Rf8 Rg1 Bb7 c8B Bd5 Rg2 d6 Be6 Rf6 Rb6 Raf8 Bg8 Re6+ Qe4+ Rf5 Qe5 Rff6 a8Q Qf5 Kd2 Qg4 Nb2 B5b3 Q2e3 d5 Bb5 Qgc4 Q5c3 Qc8 Qcc6 Nf4 Nc4 Nd3 Qcc5 Nf2 Qc3 Nh1 Q5e3 Qa5 Kd3 Qa1 Rb2 Qa4 Kd2
1rn1rq1R/1p1NNP2/4K1B1/p7/1r3pNR/1QbpQB2/2B1n3/3bb1qk b - - 0 1 illegal: No possible last move
Q2Q4/3r2qk/pB1n1bp1/1b4bn/1Q2BB2/Kn1PRrnR/1p4p1/5N1N b - - 0 1 legal: proof: b4 a5 g4 axb4 a4 h5 f4 hxg4 c4 d5 cxd5 e5 a5 exf4 a6 bxa6 h4 f5 e4 Kf7 d3 Kg6 Kd2 c5 Kc2 c4 Kb2 f3 e5 c3+ Ka2 c2 d6 f4 d7 g3 h5+ Kh7 e6 g2 h6 g6 e7 f2 e8Q b3+ Kb2 f3 Rh2 Ne7 Ra4 Qc7 d8B Ra7 Rg4 Bd7 Rg5 Bg7+ Ka3 b2 Qd2 Nf5 Qe7 Nc6 Qdb4 Rf8 Be2 f1N Nh3 f2 Bf3 Nd6 Rg3 Nd4 Bf4 c1B Be4 Bb5 Nd2 Nb3 Re3 Ng3 Nf1 Nh5 Qg5 Qe7 Bb6 Rd7 Qd5 Bf6 Qa8 Qg7 Qd8 Kg8 h7+ Kh8 Nd2 f1N Nf2 Nfg3 Nf1 Bd2 Nh1 Bdc3 Qc7 Bg5 Rh3 Rf5 Qb7 Bcf6 Qa8+ Qf8 Be5 Rf3 Bf4 Kg7 Qd8 Kh6 Qa8 Qg7 h8Q+ Qh7 Qhb8 Qg7 Qe8 Kh7 Qed8
1q3k1K/b3p2P/1R1b3b/1NB2nR1/Qnrnp3/1p2Qb1p/r5BN/3B3Q b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 h5 b4 hxg4 h4 axb4 e4 f5 Qf3 fxe4 Qh3 gxh3 Ke2 g5 Ke3 c5 f4 b5 a4 g4 d4 c4 h5 g3 h6 b3 f5 g2 Kf4 c3 Kg5 c2 Kg6 b2 f6 b4 a5 Nd7 d6 Qb6 d5 Nb8 f7+ Kd7 a6 Qd8 h7 Qe8 a7 Qd8 Nf3 g1B Nh2 Bb6 Rg1 Na6 Be3 c1B Na3 b1N Rg5 Bb7 Nb5 Qc7 Bc5 Be3 Bg2 Nd2 Rb1 Bh6 f8Q Bc8 Qf3 Bf4 Qe3 Ke8 d7+ Kf8 d6 Nf3 Rb3 Nd4 Rb1 Nf6 d8Q+ Ne8 d7 Qb8 Qc7 Ng7 Qc6 Bd6 d8Q+ Ne8 Qdd7 Ng7 Qg4 Be6 Qd1 Bg4 Qh1 Ngf5 Rb2 Bf3 Rb3 Qb7 Qd7 Rc8 a8B Qb8 Bd5 Ba7 Rb2 Rc6 Bb3 Rc8 Bd1 b3 Ra2 Nb4 Ra6 Rc7 Rb6 Rc6 Rb7 Ra6 Qc6 Ra5 Qa6 Ra4 Rb6 Ra2 Qa4 Ke8 Qc3 Kd7 Qe3 Rc8 Kf7 Kd8 Kg8 Ke8 Kh8 Rc6 Rg4 Kf8 Rg5 Bg3 Bd6 Rc4 Bc5 Be5+ Rg7 Bd6 Rg5
1RN2BK1/B1pbp2N/QP5r/r3nq1k/4pRn1/4bn2/2p3Rb/2BQ2b1 b - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 h5 c4 dxc4 Be2 g5 Bf3 gxf4 g5 Qd5 Be2 Qd8 Bg4 hxg4 Kf2 Kf7 d4 Kg6 h4 a5 b4 f3 Kg3 f2 Kf4 f1N Ke5 a4 h5+ Kh7 d5 g3 d6 a3 b6 a2 b7 g2 g6+ Kg7 b5 c3 d7 c2 Ke6 Ne3 b6 Kh6 Kf7 Bg7 Rh2 Bd4 g7 Rh7 Na3 Be5 Nf3 g1B Nc4 Ra7 Rg2 Bg3 Nd6 Be5 Ng5 Nc6 b8B Ra5 Ba7 Nd4 Qd3 Rh8 Nh7 Nf3 Qa6 Nf6 g8R Beh2 Rb1 a1B Rf8 Bb7 Nc8 Bd4 Rb5 Ng4 Rf5 Bc6 Rf4 Nc4 Re8 Rg8 Rf8 Rg6 Re8 Re6 Kg8 Bde3 Ref8 Qe8 d8Q Nce5 Qd1 Rd6 Qd4 Nf2 Qd1 Qd7 Re8 Rd2 Nd6 Ba4 Rb8 Nfg4 Nc8 Rd4 Nf6 Kg5 h6 Qf5 h7 Rd6 h8B Bd7 Nh7+ Kh5 Bg7 Rh6 Bf8
1Q3N2/1k1bq1Qn/1b5K/2b1R1Bp/r1P1p1rb/8/pRp1R1n1/2N1qB1Q b - - 0 1 legal: proof: e4 f5 a4 fxe4 h4 b5 Ra3 bxa4 Ra1 g5 b3 gxh4 Be2 c5 Bf1 c4 c3 d5 bxc4 d4 Qc2 dxc3 Qb3 Qd4 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 a5 Kg5 e5+ Kh5 c2 f4 a3 d4 h3 g4 a2 f5 e3 f6 a4 f7 e4 g5 h2 g6 a3 d5+ Kb7 g7 e2 d6 e1B d7 Nh6 g8R Bh4 Rg5 Bc5 f8Q Nf5 Nd2 Ne3 Nb3 Ra4 Rb1 a1B Qg7 a2 Nf3 Rg8 Ne5 Qe7 d8Q Bd7 Rb2 Ng2 Ng6 h6 Rg1 h1Q Nf8 Bb6 Kg6 h5 Re5 Bc5 Bg5 Bb6 Rb1 Bad4 Rb2 Be3 Kh6 Bec5 Qf7 Rg7 Nc1 Rg8 Be2 Rg7 Re1 Qg1 Bd3 Qh1 Re2 Qe1 Bf4 Rg4 Qg7 Bb5 Be3 Nd7 Bg5 Nf6 Qd6 Nh7 Qd8 Qf2 Qh1 Qe1 Qb8+ Ka6 Re3 Be8 Bf1 Bd7 Qd8 Ka7 Re2 Kb7 Qb8+
1qR2q2/2R1nr2/3nP1pQ/1npN3N/N3nB1p/3R3K/Qn3Bp1/2k1rb2 b - - 0 1 legal: proof: c4 a5 h4 d5 d4 e6 b4 axb4 h5 g6 h6 f5 g4 Bg7 hxg7 fxg4 Bg2 dxc4 d5 Kd7 d6 Ke8 Bd5 exd5 Kf1 Kf7 Kg2 Kf6 a4 Kf5 f4 Ke4 d7 b5 e3 c5 a5 h5 f5 d4 a6 c3 a7 c2 f6 g3 f7 h4 f8N b3 Ra6 b2 Bd2 Kd3 e4 c1Q e5 b4 e6 b3 Nc3 b1N Nh3 b2 Nd5 Nf6 g8R Ne4 Qb3+ Nbc3 Qa4 b1N Be1 Rh7 Ne3 Nc6 Rh8 Ne7 Nd5 Qf4 Qa2 Qb8 Rc6 Nd6 Bf2 Ba6 Rc7 Nd2 Rd1 Rf7 Rg8 Qe8 d8B Ncb5 Nd7 Qf8 N7b6 Ke2 Na4 d3 Qa3 N2e4 Qc1 d2 Rh8 Nef5 Bg5 Ne7 Bf4 Kd3 Ng5 Ke2 Kh3 g2 Nh7 Kd3 Nhf6 Ke2 Rg1 d1N Nh5 Nb2 Rf1 Kd3 Qe3+ Kc2 Rd1 Nbc3 Rg8 Bf1 Rd3 Ncb5 Rh8 Qb6 Rg8 Rd8 a8Q Qb8 Qd4 Kb1 Qg7 Kc2 Qh6 Rd7 Rc8 Ra7 Rg7 Kb1 Nab6 Ra1 Qa2+ Kc2 Na4 Re1 Rc7 Re2 Rg8 Re1 Re3 Kc1 Rh8 Qg7 Rhc8 Qf8 Rd3+
1Nq4R/1Q2bkq1/p2p3r/2r5/p2Q3R/2rpnB2/1n2NKP1/Q1rBR1n1 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Na3 exf6 Nb1 f5 Bd2 f4 Be3 Ba3 Bc1 Bf8 h3 g4 Be3 g3 Bf2 gxf2+ Kd2 Bb7 Ra2 Bf3 Ra1 Bg4 hxg4 Qc8 Kd3 Qc7 Kd2 Qd8 c4 f5 e4 h5 Ke2 d6 b4 a6 e5 d3+ Kf3 h4 g5 h3 c5 h2 c6 Rh5 b5 Nf6 e6 Be7 b6 Nd5 g6 Qc8 b7 Nb6 g7 Nc4 g8B Nd7 b8R Nb2 Be2 f1N c7 Ne3 Kf2 f3 Nd2 f4 Ne4 Rc5 Nf6+ Kf8 Qc1 Ne5 Bd1 Ra7 Ne2 Ra8 Rf1 h1R Re1 Rh6 Nd7+ Kg7 Rb4 Rb8 Rc4 Rb3 Nb8 Rc3 Bf7 Kf8 Bh5 Kg8 Ra3 Kf8 Qa1 Kg7 Rb3 Kf6 Kg1 f2+ Kh2 f1Q Rbb4 f3 Kg3 f2 Bc2 Qd8 c8Q Qh8 Rc1 Bd8 e7 Rh7 Qb7 Nf3 Rd4 Qf8 e8Q Qh1 Qee4 f1R Qed5 Ng1 Bf3 Qhh6 Rd1 Re1 Kf2 Qhg7 Re4 Rh5 Re8 Rh6 Rh4 Be7 Qd4+ Kf7 Rc8 Qe8 Rb1 Qd7 Rh8 Qc8 Rc1 Rd1 Rb1 Rd2 Rf1 Rd1 Re1 Rc1 Bd1
1bBk3K/q2p3Q/n2q1p1Q/1p3B2/2p3b1/NqR4R/2NbqP1B/1R1rn3 b - - 0 1 legal: proof: b4 b5 c4 g5 d4 e5 h4 exd4 a4 gxh4 a5 bxc4 b5 a6 Rh3 Ra7 Rh2 Rb7 Rh1 Rb6 axb6 axb5 Qd2 c3 Qd3 Bg7 Qd1 Bf8 e4 c5 Ke2 h5 Kf3 c4 Kf4 c2 Ke5 f6+ Kf5 d3 Kg6 h3 g4 h4 g5 d2 b7 h2 e5 h3 e6 Qb6 e7 Nh6 Na3 Qd6 Qh5 d1Q Bf4 c1B Rb1 Bd2 Bd3 Nf7 Qh6 Qe2 Nf3 Na6 b8Q Rh7 Qc7 Bb7 Ne1 Bf3 Nec2 Bg4 Bf5 Rh8 Rhc1 h1Q Bh2 Qhd1 Qb7 Rg8+ Kh7 Ne5 g6 Nf3 g7 Ne1 Qh1 Rh8+ Kg6 Rh7 g8B Rh8 Bd5 Rh7 Be5 h2 Bb7 Rh8 Qe4 h1Q Bc8 Qhf3 Bg3 Qfe3 Bh2 Qa7 Qd3 Rg8+ Kh7 Rg6 Kh8 Rg7 Nb4 Qb3 Rc3 Rg5 Nbc2 Rh5 Be6 Rd5 Qdh7 Rd4 Qh4 Bfh6 Bf5 Bdf4 Qh3 Rd1 Qh4 Be5 Rh3 Bd2 Q7h6 Kf7 e8R Bg3 Rg8 Ke7 Rg5 Bgf4 Rc3 Kd8 Rh5 Qdb4 Qh7 Bb8 Qg5 Qbc5 Qgh6 Qd6 Rhh3
B7/1nKp1pQk/Brb5/2q1pB2/2n2rPr/2QR4/1N1npRq1/N1Q2n2 b - - 0 1 illegal: No possible last move
4Q2Q/2N2p1r/kB1p2Q1/3K1N2/2n3nB/2rRPR1q/p3pprb/1qB1n3 b - - 0 1 illegal: No proof kernel
4K1R1/k1B1p3/3pP3/3B3n/p3pr2/Nbnr2Nq/qq1nRQ1p/QN4R1 b - - 0 1 legal: proof: d4 g5 h4 gxh4 a4 b5 f4 bxa4 d5 c6 e3 Bg7 e4 Be5 fxe5 cxd5 Bd2 dxe4 Be3 Nh6 Bc1 Ng8 Kd2 a5 Ke3 h5 Kf4 f5 Kg5 f4 Kg6 f3 c4 f2 b4 a3 g4 a2 b5 a4 c5 h3 g5 h4 c6 d6 b6 h2 b7 h3 c7 Kd7 Kf7 Kc6 g6 Kb6 g7 Nc6 b8N Nb4 Bc4 f1N Nd7+ Ka7 Bd2 Nd5 Ba5 Ngf6 g8R Nh5 Ne2 Nd2 Ng3 Nc3 Rg1 h1Q Bd5 h2 Qf1 Qg2 Nb6 Qd7 Qf2 Qdh3 Ke8 Be6+ c8Q Rh6 Qd8 Rf6 Qc8 Rb8 Nc4+ Rb6 Nca3 Rf4 Qe2 Rb4 Bc7 Rd4 Qf1 Qe2 Qf2 Qc4 Re1 Qb3 Re2 Qb2 Ba8 Bb3 Bd5 Rh4 Qcf5 Rf4 Qf1 Rd3 e6 Rd4 Qe5 Rd3 Qf2+ Re3 Rg6 Nb5 Qf3 Qd4 Nc3 Rd3 Rg1 a1Q Rg8 Qa2 Ncb1 Qc3 Qh8 Qc1 Qb2 Nc3 Qa1 Qcb2 Qf2+
4n3/NkR1N2K/1b2pqR1/Q2B1p1p/2pP2Rb/1p2rn1b/n1Q1b3/3N1B2 b - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 f4 axb4 e5 f6 f5 fxe5 Qe2 e4 Qf3 Nh6 Qd1 Ng8 h4 b5 g4 Qd7 g5 Qd4 f6 Qb2 f7+ Kd7 h5 Qd4 Bb2 Ra6 Bc3 Rg6 hxg6 Qd3 Bf6 gxf6 Qh5 Ke6 Qf3 Qd8 Qd1 Kd7 Kf2 Kc6 Ke3 h5 Kf4 c3 d4 e3 a4 c2 g7 c1B a5 b3 a6 b4 g6 b2 a7 b3 Na3 b1B Nh3 Kb7 Qc2 c5 Nf2 c4 Rg1 Nc6 Rg4 Nb4 Nd1 Na2 Nb5 e2+ Ke4 e1N a8Q+ Kb6 Qa5+ Kb7 Na7 Nf3 Qd2 Ba3 Qa5 Bc5 Kf4 Bb6 Ke4 Nh6 g8N Nf5 g7 Nd6+ Kf4 Ne8 Rg6 Bh3 Ke4 Bg2 Kf5 Qd6 Rg4 Bh3 Kg6 Nc3 Ra4 Na2 Rb4 Qf4 Rb5 f5 Rc5 Qe5 Rc6 Rh7 Nf6 Rh8 g8B Bh6 f8R Bg5 Bf7 Bh4 Bd5 Rg8+ Kh6 e6 Kh7 Rg5 Ng8 Qf6 Ne7 Rg6 Qe4 Bd3 Rg8 Be2 Qc2 Rg5 Rg2 Rg4 Rg6 Re4 R2g4 Re3 Rc7+
5bb1/1PQ1BB2/1pR1B3/R1Q1p1pK/k1N3n1/pr1q1q2/3pN1bQ/b5r1 b - - 0 1 legal: proof: b4 f5 d4 h5 g4 hxg4 e4 fxe4 a4 c5 a5 cxd4 a6 Qa5 Bb5 Qa3 Bf1 Nc6 Nf3 Nd8 Ng1 b6 b5 Nb7 axb7 Qb3 Ra3 Qxb5 Ra1 Qb2 Ke2 g5 f4 d5 h4 Kd7 f5 Kc6 f6 Kb5 h5 e5 h6 a5 f7 a4 h7 e3 Qe1 d3+ Kd1 d4 Ne2 d2 Rh6 g3 Rc6 Qc3 Ba3 g2 Be7 g1B Na3+ Ka5 Qh4 Nh6 Rb1 Qd3 c4 Ng4 c5 Be6 Qh2 Rd8 Bg2 Bd5 Bh1 Bg2 Rb2 Rd6 Rb3 Rh6 Rb2 Rh3 Rb5+ Ka6 Nc4 a3 Rh6 Rf3 c6 Bf2 c7 Be1 c8B Rf1 Rf6 Rg1 Rf1 Bf2 Be6 Be1 Rb3 Bf2 Rc3 Kb5 Rb3+ Ka4 Rb5 Rg8 h8Q Be1 Q8h6 Rh8 Qg6 Rh3 Qh7 Qe4 Bc8 Bf2 Qh6 Bf3 Bg2 Bg7 Qd6 Nh6 Qc7 Rg3 Bgh3 Bg2 Nf4 Qc6 Re1 e2+ Kc2 Rb3 Rc1 e1Q Bhg4 Qd6 Na5 Qf1 Bh5 d1B+ Kd2 d3 Rc6 Bd4 Ne2 Bc2 Nc4 Qff6 Be6 Ba1 Ke3 Qf5 Bg6 Qe4+ Kf2 d2 Bh5 Bd3 Kg3 Qd8 f8Q Qed5 Qf6 Bf8 Bhf7 Bh7+ Qf3 Bg8 Qe3 Nf5+ Kg4 Nh6+ Kh5 Ng4 Qf2 Qf3 Qc5 Qdd3 Ra5+
3Q1N2/1qp1p1N1/N1nb1q1Q/P1rk1pQ1/KR1pR3/B2p2n1/b1pp4/2B5 b - - 0 1 illegal: Other
1q1knqB1/4q3/1BN1n2n/PQb3NK/b1rr1Rr1/qqR1qQ1N/5qR1/8 b - - 0 1 illegal: No possible last move
nr1n4/K1kBrR2/Q2nb1n1/1q1BR1n1/4n1r1/2b1Q3/qNN1P2q/R1b1B3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 Kd3 d5 h4 Kd7 a4 f5 c4 b5 c5 f3 h5 b3 a5 b4 a6 g3 a7 f4 c6+ Kc7 h6 g4 h7 b2 Rh6 f2 Rf6 b3 Nf3 g2 Ne1 g1N Bg2 f1R Bh1 g3 Re6 g2 Nf3 Bb4 Be3 Qh4 Nbd2 b1Q+ Qc2 b2 Ng5 f3 Nh3 f2 Ra5 Nf3 Ng5 g1B Nc4 Bc3 Re4 Qh2 Nd6 Qa2 Nf5 b1Q Nf7 Ng5 N5h6 Ne7 Rg4 Be6 Ra3 Re8 h8R Ng6 Rg8 Re7 Nd6 Qb5+ Nc4 Rc1 Bg2 f1N Ra4 Nd2 Nf5 Nde4 Bd2 Be3 Rg7 Nd6 Qb3 Rg1 Be1 Bc1 Bh1 Rg2 Re4 Rg4 Bg2 Ndf7 Bf3 Na6 Re5 Nd8 Rf7 Rb8 a8Q Qc5 Nb2 Qb5+ Kc2 d3+ Kd1 d2 Kc2 d1N Ne3 d4 Bd5 Qb6 Kd3 Nf2+ Kc4 Nfe4 Nc2 d3 Ra3 d2 Ra5 Nac5 Qa6 d1N Ra4 Ndf2 Ra3 Kd6 c7 Nd7 c8B Kc7 Ra4 Qb7 Ra5 Nb6+ Kb5 Nd6+ Kc5 Na8 Bd7 B3d2 Qe3 Bc3 Ra3 Qb1 Ra2 Qb3 Ra1 Q3a2 Qa7+ N6b7+ Kb5 Nfe4 Qa4 Nbd6+ Ka6 Nf6 Ka7 Nfe4 Nc4 Qbb2 Qa6 Qb5 Nb2
B2BN2b/K1Rr3b/2Q1bq2/2r1R1n1/bQ4q1/bn1r1qNP/7b/Q1nk1N2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Ke6 a4 Ke5 c4 d5 c5 g5 h3 f5 a5 b5 a6 b3 c6 b4 a7 b2 c7 g3+ Kf3 g2 Qd3 b3 Be2 g4+ Kf2 f3 Qa6 d3 Ke3 g3 Qg6 d4+ Kd2 Kf4 e5 f2 e6 f1B e7 Nc6 e8Q Ba3 Qd7 Qf6 Qgg7 Ne5 Qd6 Rh5 Nf3 g1B Bd1 g2 Nc3 b1N+ Ke1+ Nd2 Nb1 Ke3 Ng5 f4 Ne4 b2 Bc2 f3 Nec3 f2+ Kd1 Be6 c8Q Bh2 Ne2 g1B Qcc6 Nh6 Qge7 Nhf7 Qcb7 Ng5 Ng3 Rd8 a8N Rd7 Qbb4 Bg2 Qa5 Bc6 Nc7 Ba4 Ne8 Kf3 Qdb6 Nb3 Qeb4 d2 Qc6+ Ke3 Bd3 f1Q+ Kc2 Q1f3 Be4 d3+ Kc3 Kf2 Ra2 d1Q Nd2 Ke1 Ndf1 b1B Rc2 Bf2 Be3 d2 Qa7 Qg4 Bb6 Bc5 Bd8 Qdf3+ Bd3 Be3 Be4 d1R Qaa8 R1d5 Qaa5 Nd3+ Kc4+ Kd1 Qa7 Rc7 Qd4 Rhh7 Qa1 Ndc1 Rg1 Ba7 Rgg2 Rc8 Rge2 Bd4 Rc3 Rd6+ Bd5 Rhd7 Re5 Bh7 Rc2 Bef5 Be4 Bdb2 Rc3 Rd3 Rc2 Na5+ Kc5 Nb3+ Kb6 Be6 Rc3 R7d6 Ka7 Rd7+ Qcb7 Rc5 Bd5 Rb5 Rc7 Rc5 Qc6 Qe7 Re2 Bh8 Re5 Qef6 Qa6 Nd4 Ba8 Nb3 Qc6
q1q1rRQ1/2nb2BK/1RN1B1n1/4bqr1/4Q2b/r1nR2P1/rr6/N1r2k1Q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Ke6 f4 Kd5 f5 b5 a5 e5 f6 h5 f7 h3 c3 h2 a6 b3 a7 b2 Kc2 b4 Ra2 h4 Qd2 h3 Ra6 e3 Kd3 b3 Ra4 e2 Qg5 e1B Qh6 e4+ Ke2 e3 Kd3 e2 Qf6 Bd6 f8Q Bh4 g3 e1R Qg6 Re5 Qg5 Na6 Ne2 Nc7 Qf2 Ne7 Be3 Re8 Qg4 Ng6 Qgf4 Rg5 Ra3 Be5 Rg1 h1Q Qf8 h2 Nd2 b1R Bh3 b2 Nb3 d6 Qe7 Bd7 Na1 Qc8 c4+ Kc5 Qh7 d5 Be6 Qg2 Qg8 h1R Rd1 Rh2 Ra6 Rc1 Bd2 b1R Bc3 Rb2 Rb6 Qf1 Qg2 Qf5+ Qe4 Ra2 Qh7 Ra3 Qg8 Rb8 a8Q Rg2 Qa7 Ra8 Qa4 Ra2 Qc2 R8a3 Kd2 d3 Ke3 d2 Nd4 Rf2 Nc6 Rb2 Qg2 Rba2 Qce4 d4+ Kd3 Rb2 Qh2 Qa8 Re1 Rg2 Re2 d1Q+ Rd2 Qda4 Rd1 Qc8 Rd2 Qaa8 Rd1 Na6 Rd2 Kd6 c5+ Kc7 Bf7 Rba2 Rf2 Qh3 Nb8 Qd8 c6 Kd6 Qf8+ Ne7 Qh7 Kc5 Ke4 d3 Bg8 d2 Rf3 Bc7 Bg7 d1N Bd5 Bd6 Qfg8 Be5 Rf8 Rgf2 c7 Rfb2 c8R+ Qc7 Rd6 Kb4 Nc6+ Kc3 Rb8 Qc8 Be6 Nc7 Rb6 Qf1 Rd4 Qf7 Rdb4 Qf2 Rb3+ Kd2 Rd3+ Ke2 Qf5 Kf1 Qg6 Ned5 Qf5 Nf4 Qg4 Rg6 Kf5 Nc3 Qf3 Bd6 Qe4 Rg5+ Kf6 Qf3 Bh8 Ng6+ Kg7 Qf6+ Kh7 Qf5 Bg7 Be5 Qhh1+
4K2N/3n2qR/1Rn3Q1/1BrQ2b1/3PBr1B/1Nb4r/1qnbN1k1/1b1b1b1q b - - 0 1 illegal: No possible last move
B3q3/K4R2/n1b1Qr1R/1r3q1B/qr1r1P1N/1b3bb1/R1r1b1n1/BN3k1Q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Ke6 g4 Ke5 a4 Kf4 c5 h5 a5 e5 f3 Kg3 g5 Kf2 c6 b5 a6 d5 a7 e3+ Kd3 b3 c7 e2 g6 e1Q g7 b2 Bg2 h3 Bh6 h2 Qc1 h4 Bg5 b4 Bd2 e4+ Kc2 h3 Kb3 d3 Ka4 b3 Kb5 d4 Kb6 e3 Bb4 e2 Bd2 Bg4 Qc4 Qf1 Bh6 e1Q Ra5 d2 Qc3 d1R Bg5 d3 Nd2 b1R Bf4 b2 Rf5 Na6 Qb3 Nh6 g8R Qd4+ Kb7 Qa4 c8Q Bd6 Rgg5 Rf8 Ra5 Qee8 Be5 Nf5 Qg8 Ne3 Qc6 Rc8 a8B Rf6 Nc4 d2 Bc3 Bg3 Qh8 Qd3 f4 Qf5 Qb6 Be2 Bc6 Kf1 Na3 Ng2 Bf3 Rc4 Be5 Rdc1 Bh5 d1B Bd4 Bb3 Rg7 R1c2 Ka7 Rb4 Re7 Rd1 Qe6 b1R Ba1 Rd5 Rg7 Rbd1 Rd7 R1d4 Nb1 Rdb5 Nf3+ Kf2 Rg1 h1B Rf7 h2 Re1 Qg4 Rd1 Qf5 Rd2 Kf1 Nh4 Ne3 Rd3 Bhf3 Rc3 h1B Rc6 Rb6 Rd6 Bc6 Qh7 Bhf3 Qh8 Ng2 Qh7 Qab5 Ra2 Qa4 Bg6 Bfe4 Qe5 Qd8 Nf3 R6b5 Qh8 Re6 Qh1+ Kf2 Bh5 Qe8 Nh4 B4f3 Qe4 Rg6 Rdf6 Rh6 Qe6 Rg6 Rh7 Rh6 Rff7 Rf6 Qh3 Kg1 Rh6 Kf1 Qh1+
1QN2rRq/RqQ5/3r1NR1/q2Pnb2/1B1rB1q1/2qkr2n/1rn4b/1BK5 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Ke7 Kd2 Ke6 g4 Kd5 a4 Ke4 a5 f5 g5 b5 d5 h5 a6 c5 g6 c3+ Kc2 c4 e3 f3 a7 h3 g7 h2 Bd2 f2 Bh3 f1N Qe2 f4 Qd1 f3 Bg4 h4 Ra4 h3 Ra5 f2 Be6 b3+ Kc1 c2 Ne2 b4 Bg4 Bf5 Nd4 Kd3 e4 Bd6 e5 Ne7 g8Q Rh4 e6 Ng6 e7 Nc6 e8R Nf4 Na3 Ne5 Bh5 Ne3 Qg2 f1R Qg1 Rf3 Ra6 Qa5 Kb2 c1R Nab5 Nc2 Rc6 Re3 Rh8 Rf8 a8B Ra1 Qb1 c3+ Kc1 b2+ Kd1 b3 Bf3 Ra4 Nc7 Rh6 Ndb5 Rd4 Bb7 Rg6 Qc1 b1Q Ba6 b2 Ne8 Bc7 Rh7 Rd6 Qg3 Bb8 Rg1 h1Q Rd7 h2 Ra7 Qg2 Nf6 h1Q Rb6 Qh8 Be4+ Kc4 Bc8 Nh3 Qh2 Qgg7 Rg4 Qb7 Rg8 Qba1 Be6 b1R Bf7 Q1a3 Bg6 Rb2 Qb1 Q3a4 Kc1 Ne1 Bh7 c2 Bb4 Bc7 Ra8 Bb8 Na7 Bc7 Nc8 Bb8 Bf3 Kd3 Ra7 Qad7 Bh1 Qdg7 Qf4 Qg4 Be4+ Ke2 Rba6 Re6 Ne7 Nc4 Nd7 Qc8 Rc6 Rbb3 Ba3 Bg6 Bh1 Bc7 Qf7 Bh2 Bg2 Qa8 Nc8 Ne5 Qg7 Rb8 Qb4 Ref6 Kb2 Rb6 Rd6 Rf2 Rf6 Rd6 Qb8 Qb7+ Bb4 Be4 Bf5 Bd3 Rg6 c1Q+ Kb3 Qcc5 Kb2 Bc2 Bh1 Qc3+ Kc1 Rg2 Nf6 Rf2 Bd7 Rg2 Ba4 Bf5+ Bc2 Qb3 Bd1+ Kd3 Qgc7 Rb2 Bg2 Qba3 Bb3 Nc2 Ba2 Qb3 Bb1 Qc3 Be4+
2B2n2/N3K1n1/bRR2Q1b/P2B2R1/3qbqr1/nkB4r/N1qq1qb1/b1Q5 b - - 0 1 illegal: No possible last move
R6N/2B2n2/B1bPKR2/B1q5/5rQb/qnRq2k1/rrN4q/2rQ1nrq b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Ke5 e4 b5 h5 c5 a5 f5 a6 g5 h6 g3+ Kf3 g4+ Ke2 f3+ Ke3 b3 d3 c3 a7 f2 h7 g2 Be2 f1R Bd2 b4 Rh2 b2 Na3 b1R Rh5 c2 Nb5 c1Q Nd4 c4 Qb3 g3 Qb2 c3 Bf3 c2 Rh6 b3 Rha6 f4+ Ke2 Nc6 R1a3 Bb7 Nh3 g1Q Ng5 g2 Ba5 Be7 Qa1 b2 Rc3 Nh6 Bg4 Bf6 Bc8 Rg8 h8B Qh2 Qa4 Rg1 Kf3 Nf7 Kg4 f3 Bg7 f2 Bf8 Rb8 a8R f1N Bfb4 Rf8 Bc7+ Qd6 Bba5 Ra1 Qc4 Qb1 Qb4 c1R Nc2 Ra2 Rb6 Be7 d4+ Kf6 d5 Ke5 Qc4 Nd4 Qe2 Bd8 Qd1 Bc6 Bb7 Nb3 Ba6 Kf6 e5+ Kg6 e6 Qa3 Ne3 Qd3 e7 b1Q e8Q Kh6 Nc2 Bf6 Nf3 Bh4 Qe4 Qa1 Kf5 Kh5 Ke6 Qc5 Qe3 Kg4 Qee2 Rb7 Ne5+ Kg3 Qh5 Qb2 Qhe2 Qba3 Qe4 Nd6 Qc4 Rf4 Ng6 Nf7 Qd4 Rh1 Nh8 g1Q d6 Qgg2 Rb5 Rg1 Qa4 Qgh1 Rb4 Rf2 Rf4 Rb4 Rf6 Rbf4 Na1 Rfb2 Nc2 Bg2 Qe4 Bf3 Qee2 Bc6 Qg4+
1K3bk1/n1r1qQ1r/3N1bB1/1P3n1r/rB3r1r/4bbR1/2QBR1b1/3N1r1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 Kf7 Kd5 a5 h4 d3 b4 a3 c4 a2 e4 f3 e5 f4 h5 a4 b5 d2 h6 a3 h7 g3 c5 g4 c6 f2 c7 f3 Qb3 d1R+ Qd3 g2 Rh4 g3 Qd2 Ne7+ Kd6 Bb7 c8Q Nbc6 Qd4 Na7 Bd2 Rc1 Qb6 Rc7 Nh3 g1B Qa6 g2 Qc6 Nf5+ Kd5 Qe7 Be2 f1R Rc4 Be3 Rc2 g1R Nf2 Rg4 Bd3 Rh4 Nh1 f2 e6+ Kg7 Ke5 d5 Nc3 d4 Q6e8 Bg2 Nd1 Rb8 Rb1 a1B Rb3 a2 Bb4 Bc3 Re2 a1R Be4 d3+ Kd5 Qg5 e7 d2 Ra3 Bf6 Rb3 Ng3+ Kd6 Ra4 Bg6 Rbb7 Ra3 Rc3 Qc7 Nf5+ Kd7 Rcc4 Kd8 Rcf4 Qc2 Rc7 Rc3 Re1 Rb3 f1R Rd3 Rc5 Rb3 Rd5+ Kc7 Rd7+ Kb8 Rc7 Ra3 Rh5 Rc3 Rfh4 Rb3 Rff4 Rd3 Ref1 Rc3 Bc5 Rg3 Bcd4 Qc8 Be3 e8N+ Kh6 Nd6 Kg7 Nb2 d1B Qe8 Rg8 Bd2 Kh8 Bb4 Rgg7 Bd2 Rge7 Bb4 Kg7 h8B+ Kg8 Bd2 Reh7 Bg7 Bd8 Bgc3 Qf6 Bb4 Qe7 Rf2 Bdf3 Nd1 Qe6 Re2 Bf6 Qa2 Qf7 Qc2 Qe7 Qf7+
3K4/1rQ1N1R1/brb2k1B/q2QrRn1/1b1NQ3/8/n1qPn1B1/3bnbNq b - - 0 1 illegal: No possible last move
4k1B1/3bbQKN/rBRq4/NRn5/1Nq2bR1/qq1n2P1/1n2r1n1/1q2rQ2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 c4 d5 a4 e5 f4 b5 g3 d3+ Ke3 d2 c5 h3 a5 h2 c6 d4+ Kf2 d3 Ke3 h4 c7 h3 f5 b3 f6 b2 a6 b4 a7 b3 Qg4 d1Q Qf5 d2 Ra5 Qd6 Rc5 Ne7 Qh5+ Ng6 Nc3 b1R Rc6 b2 Rc5 Nd7 Nb5 Qb3+ Rc3 Be7 Rd3 Nc5 Ne2 Bd7 Nec3 Qa3 Qe2 Nf4 Rd5 Nfd3 Nd4 d1Q Nc6 Qdb3 Bd2 Re1 Na2 b1Q Nab4 Nb2+ Bc3 Qc4 Na5 Qd1 Rd4 Qdb3 Rg1 h1N c8R+ Kf7 Rg2 h2 Rc6 Nf2 Rg1 Kf8 f7 h1Q Bh3 Rh7 Be6 Rh2 Rf1 Nfd3 Rf5 Ra1 Qf2 Qb1 Qf1 Re8 a8Q Rh1 Ke2 e3 Kf3 e2 Kg4 e1B Qa7 e4 Rfd5 e3 Kf5 e2 Kg6 Rh2 Rg4 Bd2 Bd4 e1N Rdg5 Ng2 Bf2 Nca4 Rb5 Bf4 Bb6 Nac5 Qc7 Ra8 Qb7 Ra6 Qa7 Beg5 Qb7 Ke7 f8N Ke8 Nh7 Be7 Qc7 Nh4+ Kg7 Re2 Bg8 Ng2 Qb7 Q1c2 Rc7 Rae1 Qd5 Qd1 Rc6 Qb1 Qf7+
1r4k1/2r5/1Qn2K1R/1Nq2n2/NB1P1N1B/1n3qRq/1bBb2n1/rQb3bb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 e4 g5 a4 f5 e5 Kf7 d3 b3 a5 c3 a6 f3 Kg3 f2 h5 c2 h6 b2 h7 c4 a7 f4+ Kg2 c3 Be2 f1Q+ Kh2 b4 Nd2 b1N Nh3 b3 Ra3 f3 Kg3 b2 Ng1 f2 Nh3 Bb4 Nb3 Bb7 Nc5 Nh6 Ng1 Nd2 Rb3 b1R Ra3 Qd5 Ra6 Rc8 h8B Rc7 e6+ Kg8 e7 Nb3 e8N Nc6 Bf6 Ra1 Ra5 Rb8 Bd2 c1B a8Q c2 Qa6 Bb2 Ra3 c1B Qb6 Qe4 Be1 Bbd2 Na4 Qd5 Nh3 Qf3+ Kh2 Nf5 Nd6 Ba8 Nf4 Bb7 Nb5 Ba8 Ng2 g3+ Kh3 Bb7 Rh2 Qh1 Be7 f1N Nf4 N1e3 Bb4 g2+ Bg3 g1Q d4 Ng2 Bd3 Qe1 Qc2 Qe7 Qb1 Qc5 Bc2 Qhf1 Rh1 Q1d3 Re1 Qdc3 Re6 Qce3 Rh6 g4+ Kh2 Qec3 Bh4 g3+ Kh3 Qfd5 Kg4 Qdf3+ Kg5 Qcd3 Qa5 Qdf1 Be4 Qh1 Bd3 Qh3 Qb6 Qh5+ Kf6 Nge3 Ng2 Nd8 Bf1 Na5 Rc3 Nb3 Ne1 g2 Rd3 g1B Ng2 Bd5 Nf4 Bh1 Be2 Ng2 Bd1 Nc6 Bc2 Qd1 Rg3+ Qdg4 Ng6 Qf3 Nf4+
QrQ4B/2nK2RB/1q2N2b/2Pb1R2/1Bq4q/1bqrb1Qr/5N2/1bn2kn1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 c5 g3+ Kf3 g4+ Kg2 d2 h6 Ke3 h7 b3 e5 d4 e6 b2 e7 d3 e8Q+ Ne7 Qh5 b4 Ra4 b3 Qf7 Be6 Rh4 f3+ Kh1 Kf2 Re4 f4 Re1 g2+ Kh2 Bd5 Na3 b1Q Qe6 g3+ Kh3 b2 Kg4 Nec6 Kf5 Nd4+ Ke5 Ne2 Nb5 Na6 Qh3 Bh6 Rh5 Qh4 Kd6 Nc7 Qa4 d1R Kd7 d2 Qg4 Rab8 a8Q Qd3 Qf5 b1B Qg6 Qc3 Ba3 Nc1 Ne2 g1B Qac2 g2 Kd6 Rhe8 h8B Re3 Ned4 Rd3 Re7 Re1 Qc6 Ree3 Qb3 d1B Qa4 B1b3 Qaa8 Ke1 Rg7 f2 Qcb7 Rh3 Bb4 f3 Be2 f1Q Qg3+ Bf2 Qc8 g1N Kd7 Qg2 Bd1 Kf1 Rf5 Bfe3 Nd6 f2 Bc2 Qge4 Ne6 Qec4 Ne4 Qa6 Rh5 Qb6 Rhg5 Ke2 Rh5 f1Q Rf5 Qff4 Nf2 Kf1 Rfg5 Qfc4 Re5 Rd2 Bh7 Rd3 Rf5
7K/6nN/1b2q2B/1PrrQ2b/r1B1nrqb/brB1qn1R/R7/1k2RN1Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 b4 Ke6 c4 Kf5 h4 Ke4 e3 g5 b5 f5 h5 a5 c5 d5 c6 a3 h6 a4 h7 f3 Kg3 f4+ Kf2 a2 c7 g3+ Ke1 a3 Kd2 d3 Kc3 f2 Qg4 d2 Qh3 d1Q Qd7 f3 Rh2 d4+ Kc4 g2 Rh5 g4 Qg7 g3 Qg5 d3 Nh3 g1N Bb2 g2 Bc3 d2 Ba5 Qd6 Qe7+ Qe6+ Kc5 Nf6 Bb4 Ne8 Rd5 Na6+ Kc4 Ng7 Ba5 Nc5 Bc3 Ra4+ Bb4 Bd7 c8R Be8 Qb7 Bh5 Re8 Bd6 Re7 Rc8 h8B Bc7 Kc3 Bb6 Bc4 f1R Rd3+ Rc6 Ba5 f2 Re8 Qg4 Ng5+ Kf5 Bb4 d1R Nh7 Nf3 Nd2 g1Q e4+ Kf4 e5 Ne4+ Kc2 Rc7 Bc3 Rc5 Re7 Rfe1 Nf1 Re3 Bd2 Kf5 Rc3 Rd3 Bh6 Rdd5 Re3 Rb1 Re2 Rb3 Rd7 Qd6 e6 Qe5 e7 Qe6 e8Q Ke5 Bf4+ Kd4 Bh6 Q1g3 Rd8 Q3f4 Ra8 Qe3 Rb1 a1B Qee7 Rbb4 Rb3 a2 Ra7 Bb2 Qec7 a1B Ra5 Rc6 Qe5+ Kc5 Ra3 Rb3 Ra2 Kb4 Ra8 Bc1 Rd8 Rdc5 Rd3 Ba3 Qa8 Bc3 Qb7 Be1 Rc3 Qeg5 Kd3 Qge7 Qa8 Rd6+ Ke3 Rdd5 Rd3 Qg2 Kf4 Qgh3 Qd8 Qe8 Qh4 Qg2 Qh1 Q8e7 Nd2 f1R Rde3 Bh4 Rc3 Rd1 Nf1 R1d4 Rd3 Ng1 Rg3 Nf3 Rh3 Kc3 Ne3 Ne8 Bf8 Qeg7 Qg5 Qf2 Nf1 Qgg6 Qf5 Nd2+ Qe4 Qgg2 Bh6 Qfg1 Ra1 Kb2 Ra2+ Kc1 B8g7 Qg8 Be5 Qe3+ Kf5 Q2g3 Qf4 Kb1 Qg5 Rg4 Qf6 Qg6+ Ke6 Ne4 Bc3 Qf5+ Ke7 Qg6 Kf8 Ng7 Kg8 Rf4 Kh8 Q3g4 Qe5 Q6e6 Re1+
3rQN1b/qRB1qn2/2nP3k/4bB1n/qrNR2Q1/nn1N1r2/1b2bB2/7K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 Kg2 b5 h4 g5 a4 f5 d4 Kf7 e4 Kg6 d5 g3 d6 b3 e5 c3 h5+ Kh6 e6 c2 a5 b2 a6 f3+ Kh3 g2 Kh2 f2 a7 b4 e7 c4 e8Q c3 Ra2 b3 Qde2 f4 Q2e4 g4 Qd3 Qe7 Qf7 Ba6 Qe4 g3+ Kh3 Be2 Qa4 Nc6 Na3 b1N Qd5 b2 Qda5 Bg7 Nc4 Rd8 a8N Be5 Qa7 Na3 Nf3 b1R Qb4 g1B Qe3 g2 Bd2 c1B Ne1 c2 Nd3 Bcb2 Nc7 c1N Ne6 Nb3 Nf8 Bh2 Qa4 g1Q Ba5 Bec3 Qd4 f3 Qg4 Bhe5 Bc7 Bcd4 Bg2 f1N Qb5 f2 Be4 Ng3 Bf5 Qd1 Kh2 f1Q Ra1 Qf4 Kg2 Qc2 Rh4 Qe3 Qa4 Rf1 Rb1 Rf3 Kh2 Rb8 Qa8 Rb4 Qe8 Nf6 Kg2 Nge4 Kh1 Bdc3 Qg2 Ng5 Rd4 Nf7 Qh3 Kg5 h6 Nh5 h7 Kh6 Qg4 Rg8 h8B Qf2 Rd5 Qa7 Bf6 Bcd4 Bh4 Bh8 Bf2 Bde5 Nc5 Qe4 Nd3 Qed4 Rb5 Qa4 Rb7 Qda7 Re1 Bd1 Re4 Be2 Nd7 Rf8 Rd4 Rg8 Qc8 Rd8 Nf8 Nc5 Qd7 Nb3 Qe8
R3b3/Knn3R1/br2kr1Q/1bNb1bbb/Qq2rB1P/7B/4N3/RN3n1r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 g5 e4 d5 h4 f5 a4 b5 e5 f3 e6 g3+ Ke1 f4 Kd2 b3 Kd3 f2 a5 b2 c5 g4 a6 f3 a7 g2 c6 g3 c7 b4 Qc2 b3 Qe2 Nd7 Qc2 Rb8 a8Q Nc5+ Kd2 d3 Kc3 d4+ Kc4 d2 Qa5 d1B Na3 b1B Nb5 d3 Qa6 d2 Qe4 b2 Bd3 f1N Qd4 f2 Kb4 Bb3 Ka5 d1B Qe3 Rh6 Ne2 g1R Rh3 g2 Na7 Qd6 Qd4 Rf6 Nc3 Bh6 Nab5 Bg5 Bf5 Rb6 Bc2 Bh5 Bf5 Bd5 Na3 Rh1 Rg3 g1R Bh3 Bf5 Qa4 b1B Bf4 Bd7 c8R Bbd3 Rd8 Bde8 Nab1 Bdb5 Ra8 Rg2 Ne2 Rgg1 Rf3 Rg4 Rg3 Qb8 Bc1 Kd6 e7 Re4 Bf4+ Ke6 Rg1 Bec6 e8N Ne7 Nd6 Bce8 Nc8 Ne3 Nd6 f1B Nb7 Qd6 Nc1 Bfd3 Ne2 Nf1 Qa7 Ba6 Qb8 Bdb5 Rg4 Bec6 Qf8 Bce8 Rg3 Ba2 Rg2 Nd5 Qh6 Nc7 Rg1 Bd5 Rg4 Bbd7 Rg1 Rbb4 Rg2 Bdb5 Rg4 Qe7 Kb6 Qd6+ Ka7 Rb2 Na5 Nb7 Nb3 Qb4 Qh8 Bh6 Rg7 Bg5 Qf8 Rc2 Qh8 Rc6 Qh6 Rb6 Nc5+
1r1bR3/6k1/n1R1nB2/QN3rPR/q2b4/r1b1b2b/3N2b1/1KQrNnbB b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 Kd2 e5 Kc2 c5 f4 h5 g4 b5 a4 b3+ Kb2 b4 g5 e3 f5 e2 d5 e1B f6 e4 d6 h3 d7 h4 a5 h2 a6 e3 a7 e2 Na3 c3+ Kb1 h3 Qc2 b2 Qb3+ c4 Nf3 c2+ Ka2 b1N Kb2 Nd2 Nb5 Bc5 Qa2 b3 Qa4 Nh6 Bg2 Nf5 Rb1 c3+ Ka1 b2+ Ka2 Nd4 Nc7 Qe8 d8R Rf8 Rf1 h1R Nh4 h2 Ra1 b1R Bb2 c1B Rf5 c2 Ba3 Bb2 Nf3 c1B Bb4 Kg8 f7+ Kg7 Rf6 Bf5 Ra6 Ne6 Qb5 Bcf2 Be7 Bbd4 Rb6 Qd7 Re8 Rb3 Qb4 Na6 Rb1 Bg4 Qa5 Rb8 a8N Rd3 Qa4 Rf1 Qa5 h1B Rd6 Bf5 Nb6 Re3 Nc4 Rg1 Na3 Qa4 Rc6 Bg4 Nb5 Rf1 Qb4 Rd3 Rb2 Bg1 Rbc2 Bg3 Qa5 e1B Rb2 Bc7 Ka1 Nb3+ Kb1 Bd8 Nc4 Bce3 Rd2 Nbc5 Rf2 Ne4 Rd2 Ra3 Rd1 Bec3 Ncd2 Ng3 Rc1 Bh2 Re1 Rh8 Rc1 Rh6 Rd1 Rf6 f8Q+ Kh7 Rc1 Rf4 Qf5+ Kg7 Qc2 Rf5 Re1 Rg1 Qc1 Rf1 Re2 Rd1 Ne1 Bhg1 Bd5 Nf1 Rh2 Bhf3 Rh5 Bh3 Be4 Be2 Bg2 Bf3 Bh1 Bfg2 Bf6+
Q2k1n1K/n2b4/1r4QP/4rBn1/2b1bR2/RnB1N2N/1RnnQ1q1/b2br3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 d3 c5 b3 a5 b2 c6 g3+ Kf3 b4 e5 g4+ Kg2 b3 a6 d4 c7 d2 e6 d3 e7 Nc6 h5 Bd7 c8Q Na7 h6 Rb8 Qc7 Nf6 Qd6 Nh7 Ra4 Rb6 Qc5 Bg7 Qe3 Nf8 Be2 f3+ Kf1 f2 Kg2 f1N Qe6 f4 Ra1 Qa8+ Nf3 Qe4 Qc2 d1N Qcc6 d2 Nc3 b1B Rh2 b2 Bd3 Nde3+ Kh1 d1B Qcc4 Nc2 Kg2 Nd2 Ra3 Nb3 Nd5 Qg6 Ng5 f3+ Kg1 g2 Kf2 g1N Kg3 f2 Kh4 f1N Nh3 g3 Ne3 g2 Bd2 Ba2 Bf5 b1B Bc3 Nfd2 Qe2 Qg3+ Kh5 Ngf3 Qc6 g1R Rg2 Ng5 Qg6+ Nf7 Rh2 Re1 Rf2 Qg2 Rf4 Nc6 a7 Bd4 Bb4 Ba1 Bc3 Rh7 Qe6 Ng5 a8Q+ Bc8 Qf6 Na7 Qg6+ Rf7 Qe4 Be6 Qa8+ Kd7 e8R Re7 Rd8+ Kc7 Rdd4 Bd7 Rb4 Re5 Rb5 Nc1 Rbb4 Bc4 Rb2 Ncb3 Qge8 Nfe6 Kg6 Nf8+ Kg7 Nf1 Qg6 Nfd2 Qe4 Kd8 Kh8 Ncd4 Qec6 Be4 Qb7 Nc2 Qa8+
r3N2B/1NQb1P2/1bRB1RQr/b2n3b/1r2r1n1/1k3Knb/1Rb4q/1r5B b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 a4 Kd5 f4 Kc4 f5 e5 h5 d5 f6 g5 f7 b5 c3 b3 h6 d3+ Kf2 e3+ Kg3 d4 a5 b4 h7 e2 a6 e1R a7 e4 Be2 b2 Qa4 e3 Ra3 Ne7 Rb3 Nd7 Rh5 Ne5 Qa3 Qc7 Kg2 g3 Bf3 e2 Rh3 g4 Bg5 d2 Rh4 d1B Be3 d3 Rh1 d2 Bg5 Bc2 Nh3 d1B Bf4 Nd5 Ng5 Bc5 Ne4 Bd7 Nf6 Bb6 Rf1 Rhb8 h8B Ba5 Rf2 Rh1 Qa2 e1R Ne8 Re4 Ra3+ b3 Nd2+ Kd3 c4 Kc3 c5 b1B c6 Rh6 Ra4 b2 Nb3 Rbb4 Nc5 Qb8 c7 Be2 Kg1 g2 Nb7 Bf1 Qa1 Kb3 c8Q Bd1 Qc7 Bbc2 Ra2 b1R Qd4 Bde2 Qdb6 Bed1 Rd2 Bde2 Kf2 g1N Qg6 Bh3 Bg3 Bed1 Bf4 Ne2 Bh1 Ng3 Rd4 Nf5 Rc4 g3+ Kg1 g2 Kf2 Bf3 Rc6 Bh5 Rf6 Ng4+ Kf3 g1B Bd6 Bd3 Rc2 Bgb6 Rc1 Ng3 Rc6 Bc2 Qh7 Qd8 Qg6 Rb8 a8R Qe7 Ra6 Qe5 Ra7 Ra8 Qb8 Bd8 Qc7 Bb6 Ra2 Ba5 Qc8 Bdb6 Qc7 Qd4 Rc5 Qd2 Rc6 Qh2 Rb2+
6NK/6N1/1brn4/2r1q1qB/R2bbRQP/1Q3Qbb/bBk1bqN1/1q4n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 h4 b5 c4 d5 a5 g5 e5 f5 a6 d3 e6 Kd4 a7 d2 e7 b3 e8N b4 c5 g3+ Kf3 g4+ Kg2 b2 c6 b3 c7 Nf6 Ra3 Nbd7 Nc3 b1B Nge2+ Kd3 Nb5 f3+ Kg1 g2 Kf2 g1B+ Kg3 d4 Kf4 f2 Kg5 f4 Kg6 g3 Rh2 g2 Kf7 f3 Ra4 b2 Ra2 Bd6 Kg7 Bb7 c8Q Rh5 Nec7 Rc5 Ra1 Ne5 Qa4 d1B Na6 Ba2 Bf4 b1Q Be3 Ne4 Ng3+ Be2 Qa3+ Kc2 Nbc7 d3 Qg4 d2 Nb8 d1Q Nd7 Qd4 Ne6 Rac8 a8Q R8c6 Nf4 Qg5+ Kh8 Bb8 Nf6 Nd6 Nf5 Bc7 Nh3 Bb6 Rh1 Bh2 Ng7 g1B Ng8 Bg3 Bc1 Qd5 Bg2 f1Q Nf4 f2 Bb2 Nf3 Bh3 Qd4 Ng2 Qde5 Qab4 Qfe1 Qb5 f1B Qb3+ Kd2 Qf8 Bd4 Qf6 Ng1 Qff3 Qf2 Rh2 Qbg6 Rh1 Bb1 Ra4 Ba2 Qc8 Ba8 Bg4 Qb1 Bh5 Bb7 Qcg4 Ba8 Ne1 Bh3 Rh2 Rc7 Ng2 Be4 Rh1 R7c6 Qf6 Nf3 Rf1 Ng1 Qf8 Qfe3 Rf4 Qf2 Qbf3 Kd1 Qf7 Kc2 Q7b3+
3K2B1/Q2nr3/r2Q1R1n/2rq1r1b/NRP4R/1nrn4/1r3q1b/2kNBr1B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 e4 h5 g4 b5 c4 h3 a4 h2 e5 d3 e6 h4 a5 d2 e7 f3 Kd6 Kf4 g5 Ke3 a6 f2 g6 f4 g7 f3 a7 b3 Nh3 b4 Nc3 b2 Ne4 b1N Ra6 b3 Bd3 f1R Nc5 f2 Ng1 b2 Be2 h3 Nd3 Rh5 Rc6 Qb6 Bg4 Nh6 g8B Rc5 Qc2 Re1 Bf3 f1R Bg2 Rff5 Ne2 Ref1 Rg1 h1N Nd4 h2 Bh3 Nf2 Ne1 h1R Ndf3 Nd3 Bg4 Rh3 Ng2+ Ke2 Qc3 d1Q Qb3 Nd2 Qb4 b1R Rh1 Rb2 Ne3 Nb3 Bd2 Bg7 e8Q Be5+ Ke7 d5 Be1 d4 Qd7 Bh2 Ng5+ Rhf3 Qd6 Nd7 Qa4 Qd2 Nd1 Qda5 Bh4 Kd2 Ne6 Kc1 Be1 Qd2 Ke8 Qb7 Ke7 Qf2 Kd8 Rg3 Rb6 Qd5 Bf3 Rg7 Rb4 Re7 Bc3 Rb8 a8R Rb6 Qa5 Ra6 Be1 Bb7 Ng5 Bf4 Qab6 Qe6 Ne3 N3e5 Rh4 d3 Bh1 d2 Qa7 d1R Ne4 Rd3 Nc3 Bf3 Na4 Qd5 Nd1 Bh2 Rab8 Rc3 Qf6 Bh5 R8b6 Nd3 Qe5 Bg1 Rf6 Bh2 Qd6
QBb2bb1/N3rkQ1/b1bn4/2q1rrr1/B1P3R1/1KNR4/3b3N/q4nBb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 h4 f5 e4 d5 a4 g5 e5 f3 h5 f2 a5 f4 a6 b3 c3 g3 a7 b2 Kc2 g2 h6 f3 h7 g4 e6 b4 e7 d3+ Kb3 g3 Qe1 d4 Rh5 d2 Rh6 d1Q+ Kc4 b3 Rg6 d3 Bh6 d2 Bg5 Nf6 Na3 b1B Qe4 b2 Qd3 Kf7 e8N Qd6 Bh4 Ba2+ Kb5 b1B Qf5 Be4 Qf4 Nd7 Nc4 Ne5 Na5 Bc6+ Kb6 Qc5+ Kc7 Ng4 Qg5 Ne4 Ne2 g1B Nf6 g2 Bg3 Nh2 Ng4 Nd6 Qh6 Bad5 Ra3 Qa1 Qg5 Rg8 h8B d1B Bd4 Rg7 Be3 Rb8 a8Q Rb5 Qe5 Ba4 Rg5 B6b7+ Nc6 Ba6 c4 Ra5 Nc3 Bde6 Be2 f1B Na2 f2 Bd1 Bd3 Rg6 f1R Nc3 Be4 Qg5 B4b5 Ba4 Rf5 Be5 Nf1 Nh2 B6d5 Qg3 Bf2 Rg4 Be1 Bg1 Bd2 Bf4 Re5 Rb3 Bh7 Ra3 Bg8 Rb3 Qe3 Na7 Bbc6 Ra3 Rc5 Kb6 Rf5 Be5 Qg5 Bf4 Bf3 Rb3 Rce5 Ra3 Bfd5 Ka5 Bf3+ Kb4 Qh5 Bge3 g1R Kb3 Bh1 Bf2 Rg2 Bg1 Rge2 Qg2 Qg5 Bg3 Qe3 Bf4 Qc5 Bg3 Rgg5 Bf4 Ne8 Bg3 Re7 Bb8 Nd6 Qg3 R2e3 Qe5 Re2 Qg7+ Ke6 Nd1 Bb4 Ra2 Ree5 Rd2 Ba5 Rd3 Bd2 Qh7 Kf6 Nc3 Ke6 Qh6+ Kf7 Qg7+
7q/1R1N3Q/1Bbq1B1k/3rqb2/1N1Rqn1b/nPq5/Q2R3r/1bqB1bK1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 a5 h4 g5 e4 f5 c4 Kf7 h5 Kg7 e5 d5 e6 g3+ Kg2 g4 b3 d3 e7 d4 e8R d2 c5 d3 c6 a3 c7 a2 Re7+ Kh6 Qe1 d1Q Rh3 a4 Rd7 a3 Rh4 d2 Nf3 Be7 Rh1 Na6 Ng5 f3+ Kg1 g2 Nh7 f2+ Kh2 f4 Bb2 f3 Bc4 f1B Bc1 g3+ Kh3 g1Q+ Kg4 g2 Kh3 f2 Bb2 Nb4 Be6 Ra5 Rd4 Bb5 Bd7 f1B Qe2 Bh4 Bc1 Nc2 Nf6 Ne7 Bg4 Nd5 Rh2 Bc6 Nc3 Qh1 Nd7 g1Q+ Qg2 Qe1 Bd1 Qe5 Bb2 Qde7 Rc1 a1Q Na2 Qb1 Nb4 a2 Bc3 a1Q Bb2 B8b7 c8Q Q7d6 Qg8 Na3 Rc5 Ba8 Rb5 Qbe4 Rb7 Qc1 Qf7 Qf2 Bc3 Qff6 Qg8 Bg5 Qf7 Nf4+ Kg3 Rd5 Kf2 Qff5 Bb2 Qh3 Qf5 Qhc3 Qfh3 Kg7 h6+ Kg6 h7 Kg7 Bh5 d1B Bf3 Bc2 Bd1 Bb1 Qd3 Re8 h8B+ Kg6 Bg7 Rh8 Bf6 Rh3 Bd8 Kh6 Bb6 Rh5 Qc2 Bf6 Qg8 Bd8 Rg2 Qhh3 Kg1 Bh4 Rb8 Bab7 Rgd2 Bba6 Rb7 Bad3 Nf8 Qc8 Nd7 Qce8 Qf7 Q8h8 Ba1 Qf3 Qa2 Bf5 Qg8 Qfe4 Qh7+ Kg5 Rc2 Bg3 Qb2 Qee8 Bc5 Qcf3 Bb6 Rh2 Rcd2 Bh4 Qa2 Q8e7 Rc4 Qef6 Bad4 Qfc3 Be5 Qfe7 Rcd4 Qee8 Qf7 Kh6 Bf6 Q8e5 Qh7+
b1N1B3/2q3q1/bqN1nb1Q/1br3R1/1n2bPrQ/1R1RBb2/qk1K4/4Q1q1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Ke6 c4 h5 a4 b5 g5 d5 c5 d3 g6 d2+ Ke2 h3 a5 h4 c6 d4 g7 Kd5 c7 Kc4 a6 e5 a7 d3+ Ke3 b3 Nc3 h2 Nb1 b4 Be2 b2 Qf1 Kb3 Qh3 d1B Qf3 h3 Ra5 d2 Ra2 Nd7 Ra5 Rh4 Na3 b1Q Qh5 Rg4 Ra4 Nc5 Bf1 Be2 Nb5 d1B Ba3 Ne6 Qh4 Qa2 Qe7 Ba6 c8Q Qc7 Qh4 Ne7 g8Q Nd5+ Kf2 e3+ Ke1 e4 Qcd8 Rc8 a8R Bg7 Qg3 Bf6 Nc3 Beb5 Qh4 Bf3 Qh6 e2 Ra5 Qg7 Bc1 Rc5 Be3 Kb2 Qgh7 b3 Kd2 Nb4 Qe8 Qc7 Rd8 Qg7 Rd3 Qc7 Bf2 Qg7 Ke3 e1Q+ Nge2 Qeb1 Bg2 Qc2 Nd5 Qc4 Ra1 h1B Nb6 h2 Nc8 Qc3 Rf1 Qe5 Kd2 Qec7 Nd4 e3+ Ke1 e2 Be3 Ba8 Bc6 Bf3 Kd2 h1B Rc1 Bhg2 Rcc3 Be4 Qh4 Bgf3 Q7h6 Ba4 Qd8 Rh5 Qd6 Nd5 Bb5 Kb1+ Ke1 b2 Qc5 Ka1 Bc1 b1Q Be8 Qbb6 Rb3 Nb4 Be3 Rd5 Qc2 Rh5 Rf5 B4b5 Kd2 Rhg5 Nc6 Rh5 Kc1 e1Q+ Qd1 Qg1 Qde1 Nd4 Rg5 Ne6 Rg6 Re5 Rg5 Rc5+ Rbc3 Bh1 Kd1 Kb2 Kd2 Bhf3 Rb3+
2n1q2Q/k1q2r1n/1R2qPQN/5nNn/2BbR3/rb2nK2/1B2B1nq/2Q1q3 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 d5 f4 Kd7 c4 Kc7 a4 Kb6 g4 h5 g5 e5 g6 d3+ Ke3 b3 g7 h3 f5 b2 f6 d4+ Kf2 e3+ Kf3 d2 Ra2 h4 Ra3 e2 Ke4 e1N Qc2 d1N Bf4 d3 Bh2 d2 Nc3 b1Q Ra2 Qe8 Bg3 h2 Ra3 h3 Ra1 Rh7 Ra2 Qc1 Bf2+ Bc5 Nb1 Ng2 Be2 Be6 Bg3 Ne7 g8B Nd7 Bg4 Nf8 Kf3 e4+ Ke2 e3 a5+ Ka6 Qb2 b5 Na3 b4 Qc2 b3 Qg6 b2 Be5 b1Q Bb2 Qe4 Nb5 Bd4 c5 Bb3 c6 Rg7 B8e6 Rf7 c7 Q4c6 Bd5 Qe6 Nd6 Qcc6 c8Q+ Qb7 Qc7 Nc8 Qcc2 Qc7 Nf5 Ra7 Bc4+ Kb7 Kf3 e2 Bh5 e1Q Kg4 Ka8 Qc3 Ra6 Qe3 Kb8 Qeh6 Ra8 Qh8 Nh7 a6 Q6c6 Nh6 Qce6+ Kf3 Nde3 a7+ Kb7 Ra6 Nf5 Kg4 d1N Rd6 Q6d7 Nf3 Qde6 Rf1 h1Q Ng5 h2 Rf4 Qhg1 Re4 h1N Ra6 Qgh2 Rc6 Nhg3 Rd6 Ngh4 Kf4 Nde3 Bhe2 Nhg2+ Kf3 Nh5 Ra6 Rb8 Rb6+ Ka8 Rb4 Rb6 Rb5 Kb7 Rb4 Rb5 a8Q+ Kb6 Qa2 Kb7 Qb1 Ka7 Qd1 Ra5 Qc1 Ra3 Rb6
1Bb1r1nn/P4Rn1/7n/2rQqr2/1Nr2B1K/1r2n1n1/2Nq4/QBRR2bk b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 h7 b3 c5 g2 c6 b2 c7 b4 Qb3 d1N Qc4 b3 Nd2 b1Q Rh6 b2 Nh3 g1R Qf7 g4+ Ke2 f3+ Ke1 g3 Rh4 g2 Rg4 d3 Rg3 f4 Qa2 Nc6 Rg4 Nh6 Rg8 Ne3 Kf2 Nef5 Rg6 Nce7 Qf7 Ng7 Ra4 Qa1 Ra2 b1R Rg4 Neg8 Ng5 Rb3 Ne6 Bc5+ Nd4 Bb6 Nb1 d2 Nc3 d1N+ Ke1 Ne3 Rd2 f2+ Ke2 Rh1 Kf3 Rh4 Bd3 f1N Bb1 Ng3 Nd5 g1N+ Kf2 f3 Rd1 Qa5 Rf4 N1e2 Nc2 Qd7 Rf6 Nf4 Ndb4 Ng6 Bd2 Qf5 Qd5+ Kf4 e5 Kg4 e6 Kh3 e7 Kh2 e8Q Rc4 Qed7 Qe5 Rf7 Rb8 Qa4 Rc5 Ne1 Kh1 Qa1 Rc4 Bc1 Bd4 Bd2 Rb5 Bc1 Rbc5 Bd2 Bd7 c8R Be6 Rcc7 Bc8 Rc6 N8e7 Bc1 Re8 h8B Neg8 Bd2 Ne6 Bf6 Nh8 Bd8 Qa2 Bc7 Ng7 Bb8 Nc2+ Be3 N3h5 Rg6 Qb2 Rc1 Qc3 Kf1 Qd2 Bg5 Bf2 Rgf6 Bg1 Be3 Nd4 Nec2 Ndf5 Bg5 Nh4 Rf4 Ng2 Re4 f2 Ree1 Qde3 Red1 Q3d4 Qd8 Ne3+ Ke2 Qd2+ Kf3 Nf4 Kg3 f1R Kh4 Nfh5+ Qdd4 Rf5 Bf4 Ng3 Qd5+
1N3n1Q/2B1kRbq/2K1b3/4q1n1/3bNqBn/1b1qb1r1/Prb4N/4RQB1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 h4 d5 c4 g5 e4 b5 e5 g3+ Kf3 b3 c5 b4 e6 g2 h5 b2 e7 d3 c6 d4 h6 b3 h7 g4+ Kf2 f3 c7 g3+ Ke1 f4 Kd2 f2 Rh6 f3 Rc6 Bg7 Be2 f1N+ Ke1 Qd5 Rc4 Nd7 Rc2 Nh2 Kd2 f2 Nc3 b1Q Bb2 f1Q Bf3 Qe5 Bd5 Nf8 Bc1 b2 Nf3 g1B Bc4 g2 Be6 Rb8 Qe2 Nh6 Qe1 Nf7 Qf2 Ng5 Ne4 Rg8 Bg4 Be6 h8B Kf7 e8N Ke7 c8Q Rb6 Qe1 Be3+ Kd1 g1B Nc7 d2 Na6 Qf2 Qf1 Rb5 Rc4 Qd3 Nb8 b1Q Ra4 Rb7 Ra7 Qh4 Qc3 Qh7 Qc8 Qb4 Ba3 Qbd6 Bc5 Qf4 Bb6 Qde5 Bc7 Rb2 Rb7 Qc2+ Ke2 d1B+ Ke1 Qb1 Ra7 Bc2+ Ke2 Qc1 Rb1 Bcb3+ Kd3 Qd1+ Nd2 Qdf3 Re1 Qd1 Rb7 Nhf3 Ra7 Nh4 Rb7 Qc1 Nf3 Qc6 Nh2 Qcd5 Rb5 Qd7 Rd5 Bc2+ Kc4 Bb3+ Kb4 d3 Ra5 d2 Ra7 d1B Rb7 Qdd5 Ra7 Bc5+ Kb5 Qd3+ Kc6 Bdc2 Rb7 Bcd4 Ra7 Bh6 Bg7 Bge3 Bf6+ Kf7 Be7 Rg6 Bc5 Bg7 B5b6 Nd7 Qh8 Ke7 Ra5 Nf8 Ba7 Qef6 Rf5 Q6e5 Rf7+ Ke8 Qf2 Ngf3 Ng3 Bb6 Rd1 Bc1 Bf5 Bc5 Ne4 Rg3 Bab6 Ng5 Qf1 Bg1 Re1 Bc5 Rf6 Ke7 Bg4 Bg1 Ba5 Ba7 Bab6 Bd2 Bf2 Bde3 Bg1 Bad4 Rf7+
2KBqb1r/Q1n2qq1/n3rB1r/2N5/2qn1qR1/Q1R3Pk/Q6N/1b3nqB b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Ke6 f4 Kf5 c4 h5 a5 d5 c5 e5 c6 b5 c7 h3 a6 d3 Ke3 b3 g3 h2 a7 b2 Nc3 b1Q Qc2 Kg4 f5 b4 f6 h4 f7 d4+ Kf2 d2 Bg2 d1N+ Ke2 b3 Bf1 e3 Kd3 e4+ Kc4 e2 Kb5 e1R Kb6 h3 Qa2 d3 Nf3 e3 Qa5 e2 Bh6 b2 Bc1 d2 Ng1 Bf5 Kb7 Qa2 c8Q b1Q+ Bb2 Rh6 Nb5 Qc4 Qa3 Qba2 Bd4 Ne3 Bf6 d1Q Qa5 Qe8 Rc1 Ne7 Nf3 Na6 Rb1 Qda4 Nbd4 N7d5 Rb3 Ndc7 Ne6 Bb1 Bg2 Nf1 Qb8 Qb2 Bd8 Qg7 Kc8 Qf4 Rc3 Qac4 Rg1 h1Q Qa2 Qh2 Bh1 Qf2 Nc5 h2 Rg2 Qg1 Rf2 Kh3 Qa3 Rc1 Qa2 e1N Re2 Nc2 Re4 Re1 Qa3 Qd6 Rg4 Nd4 Qa2 Ree6 Qa3 Be7 f8B Qf4 Qa2 Qgf7 Bg7 Bf8 Bf6 Qg7 Bg5 Qff7 Bf6 Qe3 Qa3 Qf4 Qa2 Qea4 Kb7 Bd6 Bde7 Nd5 Qc7 Rah8 a8Q Nab4 Bd8 Qae8 Q8a3 Bf8 Kc8 Na6 Qa7 Ndc7 Nh4 Qe2 Be4 h1Q Nf3 Qc4 Nh2 Qg1 Bh1
1Q4R1/N2b1R2/3k2rn/1b5b/nNq2r1b/1Pq1BB1b/2Q4q/qnNK1Q1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 Ke7 g4 a5 e4 f5 c5 h5 g5 d5 c6 f3 e5 d3 g6 a3 c7 a2 b3 f4 g7 h3 e6 d2+ Kf2 d4 Qc2 d1B Ke1 h4 Nc3 a4 Qf5 a3 Qh7 h2 Qd3 f2+ Kd2 h3 Qb5 f3 Qe8+ Kd6 e7 d3 Bb2 Rh4 Bg2 f1B Qa4 f2 e8Q Ra6 Qg4 Bd7 c8Q Be7 Rc1 a1Q Nd5 a2 Nf3 Qc7 Rc5 Nh6 Bc1 Qc3+ Ke3 a1Q Qc4 Rf4 g8N Bh4 Ne5 d2+ Nd3 Bh5 Rg1 h1B Nb4 h2 Bf3 Bfh3 Ke2 d1N Rf5 Qc5 Qb5 Q5c4 Be3 Rb6 Rg4 Na6 Ne7 Nc5 Nec6 Na4 Na7 Ra6 Rf7 Rc6 Rg3 Ra6 Bd2 f1B+ Ke1 Rb6 Nc1 Q4d4 Qb7 Qc8 Qee2 Bh1g2 Nbd3 h1Q Nc5 Qh2 Qee4 Ndc3 Qbe2 Rb5 Na6 Rg5 Nb4 Bh1 Qc2 Nb1 Kd1 Qdc3 Be3 Q8c5 Qe1 Bfb5 Qf1 Q5c4 Rg1 Re5 Rgg7 Rg5 Rg8 Rg6 Qb8+
bB2rn2/2r3R1/krR1nbb1/qbb2RQ1/Q2P4/2N1N3/1Kn1q3/1B2r1Bb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 d4 Kd7 Kd2 Kc6 Kc2 Kb5 e4 f5 h4 c5 e5 g5 h5 b3+ Kb2 g3 e6 f3 h6 f2 e7 g2 e8Q+ Nd7 a3 g4 h7 f4 Qee1 f3 Qc2 g3 Qce4 Rb8 Rh4 Nh6 Qc2 Ng4 Bf4 Ne3 Nh3 g1N Bg5 g2 Rf4 Ne2 Rf5 g1R Rf7 Nf4 Qcd2 Ne6 Bg2 f1B Qed1 c3+ Kc1 c4 Bf4 c2 Re7 f2 Q2e2 b2+ Kd2 c1B+ Kc3 b6 Qdd3 Bb7 Nd2 b1B Qg6 B1e4 a4+ Ka5 Qf6 b5 Ng5 Bed5 Bh3 Bh1 Qd1 Be2 Qb3 Re1 Bf5 f1Q Nge4 Ba3 Rc1 Bg7 Bh2 Re8 h8B Ndf8 Qc2 Qg2 Nf1 b4+ Kd2 b3 Kc3 b2 Qg5 b1B Bg1 Bb4+ Kb2 Bd3 Rc7 Qe2 Bg6+ Kb6 a5+ Ka7 a6 c3+ Ka1 Bc4 Qa4 c2 Kb2 Kb6 a7 Be7 Rc5 Bb5 a8R Bd5 Ra7 Ba8 Rd1 c1R+ Rd2 Be5 Rdc2 B5d6 Be5 Bf6 Rg7 Qc7 Qb4 Ka6 Qa4+ Qa5 Rd5 Bde7 Bc7 Rb6 Bb8 Qh5 Rc8 Rc5 Nc3 Qe2+ Bc2 Rcc6 Re5 Bc5 Rcc7 Nd5 Ne3 Nb4 Rcd7 Rcc8 Rd6 Rc7 Rc6 Qh5 Bb3 Bg6 Ba2 Nc2 Rf5 Qe2 Bb1
R6N/2qqn1q1/rq2Q1B1/6N1/1N1P1b2/3Rn1R1/b4Qnb/r1qknqBK b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 a4 Kd6 e4 Kc5 g4 Kd4 Kg2 c5 d3 f5 g5 h5 g6 b5 e5 f3+ Kh2 f4 a5 h3 e6 b3 e7 c3 e8R c2 g7 c4 a6 f2 a7 c3 Bd2 c1Q Qc2 f3 Re2 b2 Qa4+ b4 Qc6 b3 Qg6 h4 Qg5 c2 Qg6 Ne7 g8Q Nd7 Qa6 Ne5 Bf4 Rh6 Bg3 Be6 Bf4 Qd7 Na3 Kc3 d4 b1Q Ra2 b2 Qg6 Nd3 Qe8 Ne1 Ra1 Ba2 Qa4 Ra6 Re3+ Kd2 Bd3 Kd1 Ne2 f1N+ Kg1 h2+ Kf2 h3 Rg1 h1Q Rg3 h2 Bg6 Bh6 Bb8 Bf4 Qf7 Ng2 Qac4 Ne1 Rb3 Ne3 Qce6 N3g2 Qff6 Bc7 Qf8 Qh6 Nf4 c1B Nc2 Qg7 Rd3+ Bd2 Qff5 Qc1 Nb4 b1Q Qf8 Be5 Bd6 Qcc7 Qff5 Rf8 a8N Qbc1 Qff6 Qb6 Nc7 Rfa8 Qef7 R8a7 Nce6 Qbc7 Ng5 Qb1 Rh3 Qf1+ Kg3 h1Q Q6e6 Qhg1 Qff5 Qe3 Kh2 f2 Rg3 Qbc1 Qf8 Qf3 Qff5 Qfb7 Qf8 Qbb6 Qff5 Qe2 Kh1 f1N Kg1 Ra5 Rgf3 Bd5 Kh1 Qcc5 Bf7 Qcc7 Ng6 Bg3 Bf4 Bh2 Nh8 Ra3 Bg6 R7a5 Rb1 R5a4 Rbb3 Ra1 Ra3 Ba2 Rg3 Ra8 Be3 Qf3 Ra7 Qff4 Rb7 Ra6 Bg1 Qf3 Ra7 Qf2 Qf3+ Qe2 Rc3 Bf4 Qf2 Nfe3 Ra8 Qf1 Rd3+
r1QQq2R/n4k2/nb2nP1b/2R1r2B/1Bb1b1R1/1q5b/4nBr1/1b1N2NK b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 g5 h4 b5 f4 e5 Kf2 d5 Kg2 d3 c4 g3 f5 b3 a5 d4 a6 e3 c5 b4 a7 b2 f6 e2 c6 e1R h5 g4 h6 b3 h7 d2 c7 d3 Nh3 e4 Ra3 e3 Ra5 e2 Nf4 Bh6 Nc3 b1B Rd5 b2 Re5+ Kf7 Rb5 Na6 Rb7 Qe8 Qa4 d1B Be3 d2 Nfd5 Be4+ Kg1 b1B Qb4 g2 Bf2 Ne7 Qd6 Bb3 Rb5 d1Q Ne3 Nc6 Qd8 Bc4 Rc5 Rg8 h8B Qb3 Ned1 Rg7 Kh2 g1N Bg2 B8e6 Bf3 g3+ Kg2 Nh3 c8Q Ng5 Rg1 Bh3+ Kh1 Rg6 Bg7 Ne6 Bf8 g2+ Kh2 Rg7 Bh5+ Rg6 Rf1 g1N Bd6 Rb8 a8R Na7 Bf8 Nf3+ Kh1 Nfd4+ Bf3 Rg2 Rg1 Rf1 Bd6 e1B Ne2 Ba5 Be7 Bb6 Bh5+ Kg8 Ra5 Re1 Bb4 Bg6 Rc5 Kf7 Nf4 Re5 Ne2 Rg4 Rg3 Rgg5 Ng1 Ne2 Re3 Rg2 Rg3 Kf8 Rg4 Bge4 Rg6 Nc6 Ra7 Ra8 Rh7 Na7 Rh8+ Kf7 Rg4+
q5b1/3Qqq1P/4R3/1q1N1b1B/1bNkBr1n/1KQ4r/n1rBqR2/r2Rq3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 e4 Ke5 c4 g5 Kc2 f5 h4 d5 a5 b5 h5 f3 a6 f2 a7 b3+ Kb2 f4 h6 b4 c5 f3 c6 d3 c7 d2 Ra4 d4 Ra2 d3 Na3 g3 Nh3 g4 Ng5 g2 Rh2 g1R Rh3 g3 Rh4 g2 Qe2 d1Q Qc2 d2 Qb1 Be6 c8B Nc6 Qc2 Kd4 Rh5 Nge7 e5 Nf5 Nb1 Bg8 Bca6 Rc8 Bfb5 f1Q a8R f2 e6 Qf3 e7 d1Q Ra1 Qde2 Nc3 Rh7 Kb1 b2 Nf7 Qc7 Ka2 b1B+ Kb2 b3 e8Q Nb4 Nd6 Na2 Rb8 Qa8 Rh2 Be7 Ka3 b2 Rb6 Rh1 Ka4 g1Q Bd2 Rf7 h7 Nh4 Qf5 Qg5 Qf3 Qfe1 Qfc6 Bc2+ Ka3 Bd3 Rd1 Rf3 Qd8 Qcb8 Nd5 f1Q Qc2 b1R Be8 Ra1 Bh5 Bf8 Rg2 Rhh3 Qd7 Rc3+ Qb3 Rc2 Ka4 Rf6 Rc6 Qff5 Rf2 Qfe6 Rb6 Qf7 Ka3 Be4 Qf3 Qe5 Kb3 Rf4 Bd3 Bf5 Nc4 Bb4 Be4 Qee7 Re6 Qb5 Qc3+
q2b1B2/3b3K/4bP1N/3Nr2Q/B3Bn2/Qr1q3q/1n1qRRRk/1n3qbn b - - 0 1 illegal: No possible last move
3Q4/1P1nq1R1/2r1B2b/qq3N2/1N2N1b1/2q3rQ/1qr1kbnK/R1B2Qrb b - - 0 1 illegal: No possible last move
k1Nrr3/2KN3r/1n1nb3/1qRR2b1/4bqB1/1P2rbnQ/3q4/BN2RqQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 Kd3 d5 e4 Kd7 g4 Kc6 c4 Kb7 b3 h5 e5 f5 e6 h3 g5 f3 e7 a3 e8N f4 c5 a2 g6 h2 g7 f2 Nd2 h4 Bg2 f1Q+ Qe2 f3 Bb2 h3 Nc7 f2 Ndf3 a4 Rd1 a1Q Rc1 a3 Ne5 a2 Nd7 Nf6 g8Q Ne8 Rd1 Be7 Be4 Qc1 Qh7 a1R Nf3 Bg5 Nb6 Nd7 Qg6 Qf4 Nb5 Rh7 Nc7 Nd6 Rg1 h1B Nd2 h2 c6+ Ka7 Nbc4 Nb6 Ne8 Be6 c7 Bf3 c8R h1B Re1 Qd7 Nf6 Qb5 Rc5 Re8 Nd7 Ka8 Nb1 Ra7 Ba1 Rb7 Nb8 Rbe7 Bf5 Bhg2 Bg4 Bh1 Kc2 d3+ Kc3 d2 Qe3 d1R Nd7 Be4 Qh3 Bhf3 Nce5 Rd4 Nc6 Rd1 Na7 d4+ Kb2 d3 Kc3 d2 Kd4 Qfe2 Qg8 f1N Nc8 Ng3 Rg2 Qf1 Rd5 Qa4+ Kc5 Qb4+ Kc6 Qbb5+ Kc7 Rc1+ Rc5 d1Q Qh8 Qdd2 Qd4 Rc4 Qg1 Rd4 Rge2 Rd3 Rg2 Re3 Rge2 Rd8 Rd1 Ree8 Ree1 Qc2 Rd4 Qd2 Rdd5
3kq1rQ/1q2N1Rn/BnbN1rQ1/KBqP1bRr/7B/n7/4r2b/R1n4b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 Kd2 b5 g4 h5 e4 f3 a5 f2 e5 h3 e6 h4 a6 h2 a7 b3 Kc3 h3 e7 b2 g5 f4 g6 f3 g7 b4+ Kc2 b3+ Kc3 Nd7 Ra5 Nb6 Qd3 Nf6 g8B Bf5 Ra3 Rh5 Ra4 Nh7 Be2 f1R Ra2 f2 Qe4 Re1 Qb7 f1R Na3 b1Q Qe4 b2 Ra1 Qb8 Bd3 Re2 Bg5 Bh6 Bf6 Bf4 Nf3 Bc7 Rg1 h1B Qe6 h2 Nh4 Bc6 Rg7 h1B Nb5 Bh2 Ng6 Qb7 d5 Qd1 Qd6 Qa4 Bh4 Rd8 Qf6 Kd7 Bf7 Rg8 e8R Rf4 Re7+ Kd8 Be8 Rff2 Bc2 Rf1 Nd6 b1N+ Kb2 Na3 Kc3 Rff2 a8Q+ Bc8 Qa5 B6d7 Be4 Rf3+ Bd3 Qac6 Rgf7 Qb5 Qb4 Rff5 Qh8 Rf6 Qb1 Qa4 Qg1 Bb5 Re3 Bf5 Bc2 Bbd7 Ne7 Qac6 Kb2 c3+ Kb3 c4+ Kb4 Qa4+ Kc5 Bb5 Bd3 c2 Rg3 c1Q Rfg7 c3 R3g6 Bbd7 Ba6 c2 Qg5 Qac6+ Kb4 Qg1 Ka5 c1N Qh6 Qe3 Rg5 Qc2 Ng6 Ba4 Bc6 Qe8 Ne7 Qc4 Qg6 Qc5+ Bcb5 Qg1 Bd3 Bc6 Bdc4 Qc5+ Bcb5
1K2br1r/1br3q1/Q1R1nB2/1NPB3n/3r4/1R2knNR/1nQB2nn/1b4b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 h6 d2 e5 f3 Kg3 f2 e6 b3 e7 b2 e8Q b4 h7 f4+ Kh2 f3 Kg3 b3 Be2 f1N+ Kf2 Qc7 Qd7 Ne3 Rh6 Ng2 Qe8 g3+ Kf1 g4 Rd6 f2 Rc6 Na6 Qc2 d1N Qd7 Nf6 Bg5 Nh5 Rd6 Bb7 Bd2 Nc5 Qe7 Ne6 Nc3 b1B Bg5 b2 Bf6+ Ke3 Nb5 d4 Rc6 d3 Qa3 Qg7 Qa6 d2 Bf3 Bc5 Bd5 Raf8 a8R Ba2 Rc1 b1B Ne2 Nb2 Rb8 Bd4 Re1 d1R c5 Rd2 Qc1 Bg6 Qc2 Be8 Ra1 Bb1 Ra3+ Nd3 Nec3 Nb2 Ne4+ Kf4 Rd3 Be3 Rb3 Rd4 Ke2 f1N Rd3 Nh2 Ra3 Rhg8 h8B Bg1 Rc3 Nh4 Rd3 g2 Kd2 g3 Kc3 Be3 Kb3 g1R Kc3 g2 Ng3 Rd1 Kb3 g1N Ka3 Nc4+ Kb4 Nb2+ Ka5 Ngf3 Kb6 Bg1 Ka7 Ng2 Rb3 R1d3 Rd8 Ke3 Kb8 Rf7 Rdd6 Rc7 Rd8 Rf8 Rd7 Qg8 Rh7 Rh4 Bc3 Rdd4 Bf6 Qg7 Be4 Rdd7 Bd5 Rd4 Rh6 Rh8 Rh7 Rf7 Rh6 Rff8 Rh7 Nhf4 Rh3 Nh5 Bd2+
2R1Bnb1/8/3N1n1b/1NRqB2Q/QRn1rr2/2rb1Bp1/2qP3r/1qrk2K1 b - - 0 1 illegal: No possible last move
R2Q4/5B2/B3r3/1Q1n2rr/nqRq1Rkn/P7/pBn1qb1K/1nNb1N1b b - - 0 1 illegal: No proof kernel
1Q2qq1q/knKN2Q1/1R4nB/6br/p1br2N1/6QB/4P1Rb/1rn1Rn1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 Kd3 d5 c4 Kd7 g4 Kc6 b4 Kb6 b5 h5 c5+ Ka7 c6 f5 g5 f3 g6 a3 c7 f4 g7 h3 Nd2 a4 Nb1 h4 Qd2 f2 Nf3 h2 Ng5 f3 Qe3 h3 Rg1 h1N Bg2 f1N Qf4 f2 Nd2 h2 Ra2 Na6 Qf3 Rb8 Ne6 Be7 Nc5 Qe8 Nc4 Bg5 Ne6 Ne7 g8Q Ng6 Qf6 Nc5+ Kc2 d3+ Kc3 d4+ Kb4 d2 Ka5 d1R Bc6 d3 Nf8 d2 Nd7 Ba6 c8Q Rh5 Ra1 a2 Rg2 Rb7 Rb1 a1B Ne3 Be5 Qfg7 Rb6 Ng4 Nb7+ Kb4 Bc7 Bd5 Rd6 Be6 Re1 Bf5 d1N Qb3 Rd2 Qg3 Nc3 Kc4 Na2 Be6 Nd6+ Kc5 Rd4 Kc6 Nb7 Bf4 Nc1 Bf5 Be7 Bh6 Bg5 Qd8 Nd2 Ra1 f1Q Be6 Be5 Qc7 Qff8 b6+ Ka8 Qd6 Nf1 Kc7 Bc4 Bf5 Na2 Be6 Rb1 Bf5 Nc1 Be6 Nd8 b7+ Ka7 b8R Bef4 Rb4 Nb7 Bf5 Nf2 Rb6 h1Q Ngf6 Qh4 Bh3 Nh1 Ng4 Be5 Ra3 Bef4 Rd3 Be5 Rd1 Bef4 Re1 Be5 Qe3 Bh2 Qeg3 Bd2 Bf4 Rhb5 Kc6 Qhh8 Bh6 Rh5 Qc7 Bf4 Qc8 Be3 Kc7 Bg5 Qb8+
bN5n/qb2rq2/1R1r1RB1/Q1B4p/n1k5/1r1PqNbq/K2Qn2N/2q3Q1 b - - 0 1 illegal: No possible last move
1KQ1n1qq/3b2R1/B1P1bR2/2nNrn1p/1k6/1B3rQ1/1r3bR1/B1bb1N1q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 a4 Kd7 c4 Kd6 g4 Kc5 f4 h5 g5 b5 f5 e5 a5 b3 a6 d3 Ke3 d4+ Kd2 e3+ Ke1 b2 f6 e4 a7 b4 f7 e2 Kd2 e1R g6 b3 g7 h3 Na3 b1B Qe2 b2 Nb5 h2 Bg2 Ba2 Nd6 b1Q Qe3 Bd7 Nf5 Na6 Nh3 Nf6 g8B Qb3 Bb2 Bh6 f8R Rb8 Rg1 h1Q a8Q Rf1 Qf4 Rf3 Bf1 Rb6 Rg7 e3+ Kc1 e2 Kd2 Re6 Ne3 Re5 Qg3 Qbb8 Nf4 e1B+ Kc1 d2+ Kc2 d1N Kd3 Bb3 Ra2 Bg5 Be6 Rh6 Rff7 Qh8 Ba1 Qbg8 Rg2 Ne8 Bd5 Rd6 Qc8+ Kb4 c5 Bf2 c6 Bh6 Rf6 Nc5+ Kd2 Bg5 Ba6 d3 Nf1 Ne3 Bdc4 Nf5 Bf7 Ka3 Kc3 Rd4 Be6 Rb4 Bf7 Ba2 Be6 Rb3+ Kc4 d2 Bf7 d1B Bd5 Rbd3+ Kb5 Rd2 Kb6 Rb2+ Ka7 Kb4 Kb8 Bh6 Bb3 Bg5 Ba4 Bae6 Bb3 Bh6 Ne2 Bf4 Nc3 Bc1 Nd5+
1R2r3/Q2r1pK1/1n5r/N1nPBQ2/1qNq1Q1n/1B2b2b/RbN2k2/1q1n2n1 b - - 0 1 illegal: No possible last move
1R1QK3/2p3rN/2rq1b2/2B1Q1qN/krP3qR/1B2bqn1/4Q1bn/n2Bq3 b - - 0 1 illegal: No possible last move
bq1r2Bb/p1r5/q1nb4/Nn1P2r1/2bNQ3/5n2/1K1kqR1b/Q1B1RB1R b - - 0 1 illegal: No possible last move
k2r4/2BQP2K/1Qn1nrR1/rrq3r1/1p2r3/1BbN1B1b/N1r4n/1N3bR1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 Kf3 d5 g4 Kd7 e4 Kc7 a4 Kb7 c4 f5 a5 h5 g5 h3 e5 h2 c5 d3 g6 d2 g7 b3 e6 h4 e7 h3 Bc4 b2 Qf1 d1R Qg2 d4 Be2 d3 Na3 b1R Ra2 d2 Ra1 Nf6 g8Q Qd6 Qc4 Ne8 Qb4 Rh4 Qb3 Rf1+ Qf2 d1R Qd3 Nc7 Bb2 Bg7 Be5 Nc6 a6+ Ka7 Qd2 Ne6 Bc4 b4 Qd3 Rbc1 Ne2 Rc2 Rg1 h1R Nc1 h2 Rg6 Rhg1 Na2 h1R Nb1 Rg5 Bb3 Rb8 Qd5 Ka8 a7 Rb5 Qd3 Qc7 Qd7 Rdd2 Bd6 Bc3 Be5 Qb6 Bd6 Rhh5 Bc7 Re1 Qg1 Re4 Qe3 Rf1+ Qf2 Kb7 a8N Qa5 Nb6 Rdd1 Na4 Ka8 Nb2 Rd5 Nd3 Rh8 Rh6 Rd8 Rh3 Qa7 Rg3 Qb6 Kg2 f3+ Kh3 f4 Kh4 Rdf5 Qfd4 f2 Rg1 Nb8 c6 f3+ Rg4 Qa5 Qb6 Rfc5 Be5 Qa7 c7 Nc6 Bg3 Ra5 Bf4 Rcb5 Rg3 Rgf5 Rg6 Rf6 Kg4 Rfe1 Kh4 f1N Kg4 f2 Kh4 Be5 Kh5 Nh2 Kh6 Rg1 Kh7 f1B Bg3 Bc3 Be5 Ba6 c8B Bh3 Bc7 Rg3 Na3 Rgg5 Rg1 Rbd5 Nb1 Bc4 Nc5 Bcf1 Nd3 Rdb5 Ba6 Rbe5 Bac4 Rec5 Bd5 Rcb5 Qf2 Qd4 Qe3 Qc4 Qb6 Qc5 Ne5 Ref4 Bf3 Re4 Nd3
b4QNb/2bQ1r2/NR6/1K1Q1qRq/1brkB1n1/8/Pn3bpB/2Bb2qb b - - 0 1 illegal: No possible last move
1b2Bbn1/bqb1b3/4rn2/2bQn3/1R2bQq1/2p3rR/2P4N/BKB1k1QN b - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Ng1 axb6 Qf3 b5 Qh3 b4 Qg3 hxg3 Kd1 Kd7 h4 Kc6 a4 Kc5 f4 Kd4 h5 g5 h6 e5 a5 b5 h7 c5 f5 e3 f6 g2 a6 c4 f7 b3 d3 c3 a7 g3 Ba3 e2+ Kc1 Ke3 d4 Kf2 d5 e1B d6 b4 d7 g4 Rh2 e4 Ba6 e3 Bf1 b2+ Kd1 b3 Bd6 Bb7 Nd2 b1N Kc1 b2+ Kd1 Qh4 d8B Nd7 Ne2 Ndf6 Be5 Be4 Bb6 Na3 Bd6 b1Q+ Nc1 Re8 a8Q Nc4 Ba3 Ne5 Ra2 Re6 Rh3 g1B Bb2 g2 Bb5 g3 Ba1 Qg4+ Nf3 Bh2 Be8 g1B Rb2 g2 Qd5 Kf1 Bd8 Beg3 Rb4 Qb3 Nd3 e2+ Kc1 e1B Bb6 Bgc5 Nf2 g1B Nh1 Bh4 Bd8 Beg3 Bc7 Ba7 Bb6 Bf4+ Be3 B2g3 Nh2+ Ke1 Qc6 Qd5 Kb1 Qb5 Qd7 Qb7 Bc1 Bgc5 Qc6 Nh6 Qd5 Rg8 h8Q Rg7 Rb2 Nhg8 Qh5 Nc4 Qdg5 Bfb8 Rb4 Bgc7 Qf4 Rg6 Qd5 Ne5 Qg5 Qe2 Qf4 Rg3 Qg5 Qg4 Qg6 Bfe7 f8Q Bg5 Qff7 Bh6 Qg5 Bhf8 Qf4 Rb6 Qd4 Ra6 Qfd5 Re6 Qg1+
2b1b1rR/1N1qr2B/3kn3/Q3bQ2/QbprbR2/6B1/1Pq1NB1K/b5nb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 g4 f5 Kg2 a5 d4 c5 e4 h5 e5 a3 g5 f3+ Kh3 f2 e6+ Kd6 g6 a2 d5 c3 g7 c2 e7 f4+ Kg2 a4 e8Q a3 Nd2 f3+ Kh2 h3 Ne2 h4 Rb1 a1R Nc3 a2 Qe4 Ra4 Rg1 Nd7 Nb3 Nh6 g8Q Ne5 Be2 f1B Qe3 f2 Qdd4 Nhf7 Rg7 Ng5 Qdf4 Qd7 Nd2 Rd4 Rg6+ Ne6 Qh7 Rg8 Bh5 Bb5 Rh6 f1Q Qe1 Qd3 Bg6 c4 Nb3 Bc6 Be3 c1B Nc5 Qc2+ Bf2 Bg7 Bd3 Bd2 Ne2 Bb4 Qff5 Bh8 Qc3 Ba4 Rh1 Re1 Rf1 a1B Qhg6 Bf6 Rh8 Bg7 Qe8 Nf3+ Kh1 Ng1 Kh2 Bf6 Qa3 Bc6 Qa5 Be5+ Bg3 Bb5 Rf4 Ba4 Qg4 Bc6 Bh7 Ba4 Qf5 Bc6 Kh1 h2 Kg2 h1B+ Kh2 h3 Bf2 Ba6 Qa8 Bc8 Nb7+ Ke7 Bg3 Be4 Q8a7 Qd6 Qa8 Be8 Bf2 Qd8 d6+ Kd7 Bg3 Kc6 d7 Qc7 d8B Qd7 Nc5+ Kd6 Bb6 Bd3 Kh1 h2 Kg2 h1B+ Kh2 Bde4 Qa4 Rf1 Q8a5 Rf3 Bf2 Rfg3 Be1 R3g4 Bg3 R4g7 Nb7+ Ke7 Nd8 Kd6 Ba7 Re7 Bb6 Rd1 Bbf2 Rd4 Nb7+
kB3q1N/1r1r4/K2p1n2/N1Q4n/Q1QRq2q/2qR4/B1B2bPq/q4bnq b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 f5 Kd3 b5 e4 h5 c4 f3 a4 b3 a5 h3 a6 h2 c5 f2 e5 b2 a7 b4 Kc4 f4 Kb5 f3 e6 d3 e7 b3 c6 h4 c7 d2 Na3 b1N Bb2 h3 Bg7 b2 Bd4 Nf6 Qb3 d1Q Nc2 Qe1 Ne3 Rh7 Nd5 Ba6+ Kb6 Nc3 Nf4 b1Q Bb5 f1Q Qa4 f2 Nd3 Ne2 Qc2 Nh5 Be3 Qc3 Nf3 Ng1 Nde5 Qfd1 Qe4 f1Q Qc4 Qe4 Ra3 Qda1 Nc6 d6 Nfe5 Bh6 Ba4 Qf8 Bd4 Be3 Nf7 Kd7 e8Q+ Kc8 Na5 Bf2 Nh8 Rd7 Bc2 Bb5 Qe5 Qdh4 Qec5 Ba6 Qa4 Bf1 Be3 Na6 Qcc4 Nb4 Bd4 Nd5+ Ka6 Rb8 a8B Rb5 Ba7 Ndf6 Bb8 Rb7 Rb3 Nf3 Rg1 h1Q Rb4 h2 Rb3 Be2 Rd1 Bf1 Rd4 Qg1 Ra3 h1Q Rb3 Qgh2 Ra3 Qce1 Rad3 Ng1 Qc5 Qec3 Qcc4 Rb5 Bd5 Rb1 Qc5 Rb7 Ba2 Rb3 Qcc4 Rb2 Nc6 Rb4 Ka5 Kb7 c8Q+ Ka8 Ka6 Rb3 Na5 Rbb7 Q8c5
1NQr1R1B/1r3qbr/1rP5/3r1r2/2b4p/q1q1kB1K/R1Q4Q/1R1nNnr1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 e4 Kg5 g4 b5 Kg2 h5 a4 f5 c5 d5 c6 d3 e5 h3+ Kh2 d4 e6 d2 e7 b3 e8Q d3 a5 f3 a6 Kf4 g5 f2 a7 h4 g6 b4 g7 b2 Bg2 f1Q Ra4 Qd4 Qe6 b3 Nf3 Nf6 g8Q Bg7 Ra6 Rh7 Qf8 Ne4 Qed6+ Ke3 Qe5 f4 Qf7 Qc3 Ra3 Ba6 Ng5 f3 Ra1 f2 Qee7 Bc4 Qg8 Na6 Qb4 Nac5 Rg1 Na4 Qa3 Rd8 a8R Ng3 Qa2 Rd5 Na3 b1R Ne6 Nb2 Qh5 Nd1 Nd4 b2 Nab5 Qa3 Qd8 Qe1 Qg8 f1Q Nc7 Qf7 Nf3 Rf5 Na6 Nf1+ Kh1 h2 Qg6 Bd5 Rf8 Bc4 Nb8 Qg3 Ne1 Qe5 Bh3 Qec3 Kg2 h1R Bg4 Rh3 Bf3 Rg3+ Kh1 Rg4 Qd6 Rd4 Kg2 Rdd5 Qc7 Nf2 Qb7 Ng3 Qc7 Qe5 Bd1 Rd6 Rd8 Bf8 Bf3 Rd7 Qd6 Rb7 Qb3 Bh6 Ra2 Ra1 Qc3 b1R Bb2 d1R Qc2 d2 Nd3 Qd4 Bc3 R1b6 Nc5 Qd3 Bg7 Qdc3 Bh8 Bg7 Nd3 Rab1 Qgf8 R1b5 Rf1 Rdb1 Rc1 d1R Kh2 Rg1 Ne1 Rbe5 Qc7 R1b5 Re8 Nd1 Kh3 Nf1 Rb1 Re6 Qg8 Rbd5 Q7h2 Ree7 Rc8 Red7 Qd8 R7d6 Qc7 Rd7 Rf8 Rd8 Qc8
Bbq2r1N/qn3rp1/6b1/2n1QQBN/4PnK1/3kB2n/2nRnq2/3Rn2Q b - - 0 1 illegal: No possible last move
b2Bb1q1/1nbRp2Q/PbbN1qn1/3b1r2/BN6/1rk5/1N2q2Q/1K1Q1Rb1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 a4 d5 h4 g5 f3 b5 c5 b3+ Kb2 b4 a5 e3 a6 g3 h5 d3 h6 Kd4 f4 g2 h7 d2 c6 g4 c7 e2 f5 e1Q f6 g3 f7 Qe6 Ra2 Bb7 c8N Nc6 Qe2 d1B Qf3 Qf6 Ra4 Bh6 f8Q Ne5 Bb5 Bc6 Nh3 g1B Ra2 g2 Ba4 Ng6 Na7 Bf4 Nc3 Bc7 Ng5 Rb8 Qe8 Nh6 Nc8 Rf8 h8Q Nf7 Ra3 Nd6 Ra2 Nb7 Qfh3 Bh5 Kb1 b2 Kc2 b1B+ Kb2 b3 Ra1 Be4 Nd6 Rf7 Qed7 Qg8 Qh2 Be3 Ra2 g1B Nc4 Bhf3 Ka3 b2 Q8h7 b1B Kb2 Bh5 Ra1 Ba2 Bd2 Kd3 Rb1 Beb6 Rd1 d4 Nd5 Bb3 Ka1 Kc2 Nb2 d3 Bb4+ d2 Ba5 Bef3 Nb4+ Kc3 Kb1 Bbd5 Rf1 Rff8 Nf7 Bg2 Nc4 Bgf3 Nfd6 d1Q+ Ka2 Qe2+ Kb1 Qf4 Qg4 Rf5 Nb2 Qd4 Rd1 Qf6 Rd4 Nf8 Rd2 Bhe8 Rd1 Ng6 Qgh5 Bgc5 Rhf1 Bg1 Rd2 Bg2 Qg4 Qe3 Qd1 Qe2 Rd4 Bc5 Nc8 Bb3 Na7 Nd6 Rdf4 Ba8 Bb6 Bgc6 Nc8 Bd8 N4d3 Bbf7 Bc7 Rb3 Nb4 Nb7 Rd4 Bb6 Rd7 Bfd5 Nd6 Bbf2 Bb8 Ba5 Bc7 Bd4 Bd8 Bc7 Qf4 Bdb6 Qfh2
2BRr1n1/Ppb3rq/r1k2BNn/5n1K/1qb5/2n2Q1n/3NQ2n/3RnQ1N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 Kd7 Kg4 h5+ Kf5 f3 e4 h3 c4 h2 g4 b3 a4 b2 a5 d3 c5 h4 a6 d2 e5 h3 e6+ Kc6 g5 d4 Kg4 f5+ Kf4 d3 e7 f2 e8Q+ Nd7 g6 Nh6 g7 Bd6+ Qe5 Nf6 Kg5 f4 g8Q f3 Qee1 Qc7 Qe7 Be6 Qc2 d1R Qgd8 d2 Qdf8 Nfg8 Qg6 Bc4 Qe1 Qh7 Qh5 Bc7 Bd3 f1N Qf2 Ng3 Ne2 Rg1 Bf5 d1N Nd2 b1Q Bb2 Nc3 Qf1 f2 Bc8 Ngf5+ Ng3 Ra7 Qfe2 f1N Qhf3+ Qe4 Ra5 Rg2 Rg1 h1N Kh5 Nf2 Nh1 Nh2 Rd1 Rg7 Ra4 Ra8 a7 Nd3 Ba1 Ne1 Qff1 Qb1 Ra3 Qb4 Bb2 Nb5 Rd3 Rb8 Bf6 Nc3 Be6 Re8 Rd8 N2g4 Bc8 h2 Ng3 h1N Qf7 Kb5 c6 Nhf2 Nh1 Nh3 Qf8 Nh2 Qf7 Bg3 c7 Re6 Qff3 Ra6 Qff1 Bf4 Qd5+ Kb6 Qdf3 Be5 Bd7 Kc5 c8N Bc7 Ne7 Kb6 Ng6 Kc5 Qf4 Kb6 Bc8 Kc6 Rf8 Nge7 Rd8 Re8 Q4f2 Neg8 Qff3+
2QR2rN/1n1bbp2/P6r/q2n1kn1/5BNr/1Q4nR/n1bQ2N1/K1bB2b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 e4 d5 h4 g5 c4 b5 Kc2 g3 Kb2 g4 c5 g2 e5 b3 c6 d3 a5 b4 c7 d2 a6 f3 h5 f2 h6 g3 h7 d4 Nh3 g1B Ra4 g2 Bc4+ Kf5 e6 f1N e7 d3 e8N Ng3 Nf4 Be3 Rf1 g1B Qf3 d1N+ Ka1 d2 Qe2 b2+ Ka2 Nc6 Qe1 Nf2 Nf6 d1R Bd3+ Nfe4 Bd2 Nge7 Ra3 Bd7 c8Q Nd5 Be2 Qa5 Ng4 Ng5 Nc3 b1N Ka1 b3 Ng6+ Bf4 Rf3 Be7 Rd3 Nd8 Bf3 Nb7 Ne2 Bfe3 Nef4 Nbc3+ Bc1 Rg8 h8Q Na2 Qb2 Rh8 Rd4 Rh4 Nh8 Rd2 Qbc3 Rdh2 Bd1 Rh6 Qf2 R2h4 Qfd2 Rb8 Ng2 b2+ Kb1 Ra8 Qb3 Rb8 Kc2 b1B+ Kb2 Bc2 Ka1 Bf4 Rd3 Nh1 Rh3 Ng3 Ra4 Bfd6 Rd4 Ba3 Qe2 Ra8 Bf4 Bc1 Qd2 Rb8 Qc5 Rg8 Qc8 Bea3 Re4 Bb4 Re8 Be7 Rd8
3bKR1R/r1pnP3/1n6/B2Bnbb1/3kr1B1/Q4R1q/N3n3/Qnr1r1rN b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 a4 b5 e4 h5 g4 h3 g5 h4 g6 c3 a5 h2 a6 f3 g7 c2 d3 h3 a7 f4 Nc3 f2 Ra6 b3 Ba3+ b4 Rh6 c1B Nge2 f3 Qe1 b2 Bg2 b1N Qd2 f1N Ra6 f2 Nf4 Ng3 Bf3 f1N Qd1 Ne2 Rf6 Nh6 g8B Nfd2 Bd5 Nd7+ Ke6 Ng4 Kf7 Rh4 e5 Nc4 e6 Be7 Nh5 Kd4 Ng3 b3 Bb4 b2 Ba5 Ncb6 Na2 Qh8 Qb3 Bg5 Qa3 Qh6 Ke8 Nge5 Bg4 Bd8 Rf3 Qh7 Rhf1 h1R R1f2 Rd1 Nh1 h2 Rf8 Rc1 R2f3 Rb8 a8Q Rb7 Bh3 Re4 Bg4 Qh3 Qa6 Nbc3 Qa7 b1R Qa8 Rb4 Qa7 Nb1 Qa8 Kc5 d4+ Kd6 Qd3 Re1 Rh8 Rc4 Nc3 Rf4 Nf2 h1R Bb4+ Nc5 Be4 Ng6 d5 Ke5 d6 Bde7 d7 Rhg1 Bd5 Rfe4 Qa1 Ra7 Na2+ Rc3 Qa6 Kd4 Qa3 Ne5 Nh1 Bef6 Ba5 Be7 d8R Bef6 Rd6 Bd8 e7 Bf5 Rf6 Ncd7 Bb7 Kc4 Rff8 Rcc1 Rc3+ Kd4 Bc6 Na8 Bd5 Nab6 Rf3+
NQb1r1q1/1Rn2RB1/6k1/Bnp1N2q/KP2r3/n1bQn2b/1rn1nN2/1B6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 h5 b4 c5 e4 f5 d4 Kf7 Kd2 a5 Kc3 h3 e5 a3 d5 f3 d6 a4 d7 h2 e6+ Kg6 e7 f2 e8N a2 g5 f4 Qg4 f3 Qh4 a3 Ng7 Na6 Nd2 Nc7 Rb1 a1N Qd4 h4 Nh5 h3 Qd6+ Nf6 Qd4 a2 Nb3 Bg7 Ba3 Nb5+ Kb2 Ne8 Nc1 Nec7 Nd3 Qg8 d8B Nc2 Nf6 a1N Nd7 Rh4 Nb6 Re4 Rc1 Rb8 Na8 Bh8 Bg2 f1N Nf2 Nfe3 Rf1 Bg7 Ka2 c3+ Qd5 Bf6 Bb2 Nca3 Qc4 N1c2 Kb3 Bh8 Ka4 Bg7 Qd3 Bh8 Ng4 f2 Nf3 Bf6 Rhg1 h1Q Ba1 h2 Nfe5+ Kh5 g6 Kg5 Rc1 f1B g7 Kf5 Bf3 Bh3 Rcf1 Kg5 Bd1 Qf3 Rg2 h1R Nf2+ Kf5 Rg6 Qh5 Rh6 Rh2 Rh7 Ne8 Ba5 Nec7 Nf3 Kg6 Bb2 Ne1 Bc2 Rg2 Bb1 c2 Ba1 c1N Bb2 Bc3 Ne5+ Kg5 Ba1 Ne2 Bb2 N1c2 Ba1 Qh8 g8Q+ Qg7 Qf8 Qg8 Re7 Bcd7 Rf7 Re8 Qfd6 Bdf5 Qb6 Bc8 Qb8 Na6 Rb7 Nac7 Nd1 Rh2 Rf7 Kh6 Nf2 Kg5 Nd7 Kg6 Ne5+ Kh6 Nd7 Ncd4 Re7 Bb2 Ba2 Nc1 Ng4+ Kg6 Bb1 Rd2 Rf7 Nce2 Ba2 Rd1 Nf2 Ndc2 Kb3 Bf6 Ka4 Rb1 Be5 Rb2 Bb1 Be7 Bh8 Bf6 Bg7 Bc3 Ne5+
n1K2B2/8/rRQ1B1n1/bP3r1N/RQqnqr2/1rN1R3/2pr1kbr/3q1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 f5 g4 h5 e4 a5 b3 h3 g5 c3 d3 f3 g6 f2 g7 c2 Ra3 h2 Bg5 c1Q Be2 f1R Bh4 f4 Nd2 f3 Nh3 f2 Rg1 h1R Rg6 Ra6 Ng1 Bb7 Kf5 Kd4 e5 Ke3 d4 c5 d5 c4 b4+ c3 b5 Ne7+ Kg5 Rh3 g8R Nd7 d6 Bg2 e6 Nb6 Kf6 Na8 Ra2 a3 d7 a4 R6g7 Ng6+ Kf5 Bb4 e7 Ba5 e8B c2 Bg3 h4 Ne4 Qc8 Qd5 Qd1 Nc3 Qc4 d8Q Rh6 Ra1 a2 Q8d6 a3 Ke6 Rh2 Kd7 h3 Qb4 Rh7 Rc1 a1R Bf7 a2 Be6 Rb1 Bd6 a1N Re7 Nb3 Rb8 Nd4 Rb6 Rb3 Qc6 Rh5 Kd8 Rf5 Kc8 Re1 Rb1 f1R Ra1 R1f4 Bf1 Kf2 Ra4 Re2 Bc5 Rd2 Nge2 Rh1 Ng3 h2 Ra7 Rg1 Rab7 h1Q Bf8 Qh4 Nh5 Rh1 Re7 Rh2 Bd5 Qhg4 Re3 Qgf3 Bf7 Qe4 Be6
5R2/2bqnN2/1kn1Q3/bpRP1NK1/2n1B1n1/1Q1br1r1/B4Q1n/B2qq2n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 e4 b5 a4 f5 d4 h5 g4 b3 g5 h3 d5+ Kb6 g6 c5 g7 c3 e5 h2 e6 c2 e7 h4 e8Q b2 Nc3 b1N Nh3 c4 Qe4 Bb4 Qe8 Qd7 Na2 c3 Qe7 Ba5 Qde2 Nc6 Q2e5 Nd2+ Ke2 f3+ Ke3 f2 Kf4 Nc4 Q7e6 Ne7 Ng5 h3 Nf7 Re8 Kg5 f4 g8B f3 Bb2 c1Q+ Qf4 c2 Nc3 Qe1 Ne2 c1B Ng3 Bcd2 Rg1 h1N Bh7 h2 Nf5 Rb8 Be2 f1Q Rc1 Nf2 Ba1 h1N Rg2 Ng4 Rf2 Bdc3 Bd3 Qd1 Bb1 Be5 Ba2 Qfe1 Rf1 f2 Rc3 Nd6 Rc5 Nc4 Qg3 Bc7 Qb3 Rh8 Bg6 Rh3 Bh7 Rg3 Bg6 Bb7 Bh7 Re8 Bg6 Bb4 Bh7 Bc8 a5+ Ka7 a6 Kb6 a7 Ba5 Rg1 f1N a8Q Nfh2 Rf1 Bb4 Qaa3 Ba5 Qbb2 Rh8 Bg6 Rhh3 Qab3 Re3 Qf2 Rhg3 Nd4 Qe8 Be4 Bd7 Qg6 Bf5 Qe6 Bh7 Nf5 Qd7 Bh8 Bg6 Ba1 Bh5 Ng7 Re2 Ne5 Ree3 Qff6 Nh6+ Qg4 Rh3 Qge6 Be2 Qf4 Bd3 Qh4 Kb7 Rf8 N6g4 Nf7 Kb6 Qf2 Rhg3 Nf5
3b2n1/3kq1bb/1nPbr3/1K3Q2/NRrN4/1R1q1Q1n/2Bp1q2/B1RNb1b1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 b5 f4 g5 c4 b3 f5 d3+ Kd2 g3 Kc3 d4+ Kd2 e3+ Ke1 e2 Kd2 b4 a5 g4 h5 b2 a6 b3 c5 e4 h6 g2 f6 g3 a7 Qe7 f7+ Kd7 h7 Bg7 Nf3 g1B f8R g2 Ra4 Bh2 Nc3 g1B Ne1 b1Q Nd5 b2 Nc2 Qa2 Na3 b1Q+ Bb2 Bd6 Ne3 Qaf7 Nec2 Qf2 Ba1 Qb5 Nc4 e1B+ Kc1 e3 Rb4 d2+ Kb2 e2 Ka3 d3 Rf3 Bb7 N4e3 Be4 Nd4 Bf5 Qc2 d1N Kb3 Qc4+ Ka4 d2 Bg2 Be4 Rg3 Bg6 Be4 Qd3 Qc3 Na6 Rgh3 Re8 a8N Nc7 Rg3 Nd5 Nb6+ Kd8 Ka5 Kc7 Na4 Kd7 Rf3 Nb6 Qa3 Qe5 Qb3 Re6 Qd5 Qg5 Qf5 Qe7 Rg3 Qf1 Rf3 Nf2 Nd1 Nh3 Re3 Qf2 Qf3 Qc2 Reb3 Qd3 Qf5 Qfe3 Qf3 Bh4 Qf5 e1B Qf3 Qf1 Bc2 Qff2 Kb5 Qd3+ Ka5 Nf6 Qf5 Rb8 h8Q Ng8 Qhh5 Bh7 Qhf3 Rf8 Q5g4 Rf4 Qf5 Qde3 Kb5 Rg4 Ne2 Rc4 Nd4 Qd3 Rb1 Qf8 Qg5 Bgh2 Qgf5 Bd8 Ndc3 Qe7 Rf1 Bg1 R1b2 Qfe2 R2b3 Beg3 Rc1 Be1 Nd1 Qf2 c6+
2rN3Q/rbB1bn2/2pb4/k1b2K2/3Q2BR/3R1P2/Bb1Nnbq1/3q1qRn b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 a4+ Ka5 h4 g5+ Ke5 b5 d4 c3 d5 e3 h5 e2 f3 e1N h6 c2 d6 g3 d7 b3 h7 g4 Rh6 g2 Qd6 b2 Kf5 e5 Bd2+ b4 Bf4 c1B Rh2 g3 Ke4 b3 Qe7 Ra7 Bg5 Nd3 Rh3 Nc6 Ra3 Nf2+ Kf5 e4 Qe8 e3 Qh5 e2 Rh2 e1B Bf4 Bb7 Ra2 Nh1 Rh4 Bf2 Ra1 Be7 Ne2 g1B Nd4 g2 Ne6 Bh2 Nd2 g1B Qg4 b1Q+ Bd3 Qe8 d8R b2 Bg3 Qc2 Qd4 b1Q Rd6 Qbb3 Nd8 Bb2 Be4 Qc1 Bb1 Qf1 Ba2 Qbd1 Be5 Ka6 a5 Kb5 a6 Ka5 Qf4 Bc5 Rd3 Bgf2 Qd4 Qg2 Rb1 Qd7+ Be6 Qe2 Rg1 Qef1 Bg7 Bhd6 Be5 Nf6 Bf4 Nd5 Bh2 Re8 h8Q Ne5 Bg3 Nf7 Be5 Ra8 a7 Nc3 Bg3 Rc8 a8B Ne2 Bh2 Qa4 Ba2 c6 Be5 Ba6 Bb7 Qad1 Bg3 Ra8 Bc8 Ra7 Bce6 Bb7 Bh2 Bb4 Be5 Bdc5 Bb8 Bed6 Kf6 B4a3 Bg4 Rf8 Kf5 Be7 Ne6 Rc8 Nd8 Bcd6 Rc3 Bab4 Rd3 Bbc5 Bc7+
1brNr2r/b1B1R2P/r4R2/qR6/Qr1n1QK1/1q1bB2B/pk1r4/2N2nn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 c4 Kd6 h4 Kc5 e4 Kb4 c5 a5 h5 f5 e5 g5 c6 d5 b3 a3 c7 a4 e6 g3+ Kf3 a2 h6 g4+ Ke2 a3 h7 g2 e7 d3+ Kf2 g3+ Kf3 d4 e8Q d2 Qc2 d1Q+ Qee2 d3 Nh3 g1N+ Kg2 d2 Nf2 Nf6 Nh3 Bd6 Qe1 Ng4 Nf2 Nh2 Qb2 Nc6 Be2 Nd4 Bg4 Ba6 c8R Bb8 Qf1 Qa5 Bh3 Bd3 Ng4 Re8 Qf3 Nf1 Ne5 Qc2 Rc3 d1R+ Nd2 Rh8 Rb1 a1R Qe3 a2 Qf2 Ra6 Rc7 Qc4 Qa3+ Kc3 Rb2 Rb1 Qa4 Re1 Nf7 Ree8 b4 Rc8 Re7 Qb3 Rh2 f3+ Kh1 f4 b5 Rhe8 b6 Rh8 Qe3 f2 b7 f3 Nd8 Re8 Qf4 Rh8 Nc4 Re8 Be3 Rd1 Re2 Rd2 Ne5 Kb2 Rg2 Nh2 Re6 f1R Rf6 Rb1 Re1 f2 Re2 Bd6 b8B f1R Bc7 Rh8 Rgf2 Rfe1 Kg2 Nf1 Rf5 Bc5 Rf6 Ba7 Rb6 Bb8 Rb5 Ka1 Qh6 Kb2 Rf6 Rbc1 Qg5 Rc4 Qf4 Rb4 Be6 Ngf3 Kh3 Ng1+ Kh4 g2 Bh3 Ngf3+ Kg4 g1B Nd7 Bf2 Nc5 Ng1 Qh2 Qc2 Nb3 Qd1 Nc1 Qb3 Bg5 Be3 Qf4 Bf2 Re7 Re3 Ref7 Ree8 Re7 Nde2 Bh4 Bfa7 Bf2 Nd4 Be3
n2k1KN1/3NRn2/rb1R2b1/1r3nB1/4bQnq/1R1pn2P/B1Qq3b/1b4N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 a4 d5 e4 g5 c4 f5 c5 g3+ Kf3 g2 a5 d3 a6 b3 c6 d4 a7 b4 c7 g4+ Kf2 f3 Kg3 f4+ Kf2 g3+ Ke1 b2 Kd2 b3 e5 f2 e6 f3 e7 Rh5 h3 Bf5 c8N Nh6 Ra2 Na6 Nb6 Ng4 Nc4 Bg6 Nb6 Nc7 Nc3 b1B Ncd5 b2 Ne3 Rb5 Ne2 g1N Rh2 g2 Ned5 Bg7 Nd7 Be5 Rh1 Bh2 Ra3 Bc2 Rb3 b1B Ba3 Be4 Bd6 Bg6 Bf4 Be4 Bg5 Bg6 Kc1 d2+ Kb2 Bce4 Qc2 d1Q Ka3 Qd2 Ka4 Rab8 a8Q R8b6 Qb8 Na8 Qf4 Rc6 Nc1 Rf6 Bd3 f1N Ne2 f2 Bc4 Nf3 Ng1 Nfe3 Ka3 f1N Ka4 Kf7 e8R Nf5 Ne7+ Re6 Bd5 Nfe3 Ng8 Nfe5 Bc4 Qf6 Rd8 d3 Bd5 Rb6 Bc4 Ra6+ Kb5 Qh8 Kc5 Qh4 Ra3 Rb6 Ba2 Rb2 Rb3 Ra6 Nb8 Ke6 Rd6+ Kf7 Nd7 Ke8 Nf3 Nf7 Re1 g1B Re2 Bf2 Ng1 Nh8 Rf6 Kd8 Rc6+ Ne7 Kd6 Nf7+ Ke6 Qh8 Rd6 Qh4 Rc3 Rb5 Rb3 Nge5 Kf6 N5g4+ Kg7 Bfg3 Kf8 Bf2 Ngf6 N7f5 Re1 Nd1 Re2 Bb6 Re1 Bf3 Re4 Nde3 Re7 Be4 Ng8
qk2q2b/2bbN1rB/1NBr4/1Q4B1/4pRr1/1PbQrb2/1rn2R2/1QK4n b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 h5 g4 d5 f4 Kd7 c4 Kc7 f5 e5 c5 a5 g5 h3 b3 h2 g6 d3 c6 e3+ Kc3 h4 Kb2 d4 f6 d2 g7 a3+ Kc2 e2 f7 e1R Ra2 d3+ Kc3 a4 Rc2 h3 Nf3 a2 Kb2 a1B+ Ka2 a3 Rg1 h1Q Qe2 d1B Rg5 d2 Bg2 h2 Rg3 Bc3 Qa6 Nh6 g8Q Bd7 Bh3 Ng4 Qc4 Rh7 Qg5 Rg7 Qe3 Bd6 f8Q Nf2 Nd4 Na6 Qed3 Qe8 Rg4 Re3 Nf5 Kb8 Rf4 Bf3 Ne7 d1R Bf5 Bc7 Nd2 Nb4+ Kb1 Ra4 Bh7 Qg2 Qcd5 h1R Nc4 Rh2 Qff5 Nh1 Rf2 Nc2 Nb6 Rd4 Q3b5 Rg1 Qdc4 Rd6 Qf1 Rg4 Qf5d3 e4 Bd2 a2+ Kc1 a1B Qd1 Rgh4 Qe1 Qgg8 Qef1 Rg7 Qe1 Rhg4 Qef1 Bd8 c7+ Kb7 c8B+ Kb8 Bb7 Bc7 Bc6 Qd5 Qa4 Qa5 Qb4 Qa8 Qbb5 Rg8 Bf5 Ne1 Kb1 Bb4 Bh7 Re2 Rf7 Bh8 Bg5 Bbc3 Rg2 Re3 Rf4 Rg7 Qg1 Nc2 Rd2 Nd4 Qc1 Rf2 Qb2 Rh2 Kc1 Rhg2 Qbb1 Rf2 Rd1 Rb2 Rf1 Nc2 Rf2
R1r1B3/rBnKR1k1/2r1n3/r1Nb4/2P4n/n1r2Q1q/pb1NnN2/qQ2B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 Kd3 Kf7 Kc4 a5 Kb5 d5 b4 h5 e4 a3 c4 a4 g4 f3 g5 a2 g6+ Kg7 e5 d3 e6 a3 e7 f4 e8Q d2 Qe6 f2 Qdg4 d1Q Qd7+ Ne7 Bg2 f1R Qgf5 f3 Be3 d4 Qfd5 d3 Bb6 d2 Qd3 f2 Q3h3 Bb7 Bd5 Qc8 Qhf5 h3 Be4 h2 Qfe6 h4 Be3 h3 Qd8 Nec6 Qed6 Ra5+ Kb6 Nd4 b5 Ne6 Qf4 Bd5 Qg4 Na6 Bg5 Nac7 Qg3 Bd6 Bd3 Be5 Bf5 Bb2 Qf3 Re1 Qd6 f1R Qb4 Re3 Be4 Rc3 Bh4 Qe1 Qb3 d1N Nd2 Ne3 Qbd1 Rg8 Qb1 Nf5 Bf2 Nh4 Bg3 Kh6 g7 Re8 g8B Kg7 Bf7 Rg8 Qe2 Rf6 Qf3 Qd7 Bf2 Rc8 Bg3 Qc1 Be1 Ra7 Ne2 Qd1 Nf4 Qa4 Rf1 h1R Nd3 h2 Nf2 Qd1 Rg1+ Rg6 Rg4 Rf1 Rg5 h1N Rf5 Ng3 Re5 Nf4+ Kc5 Nge2 b6 Qh3 b7 Nfe6+ Kd6 Rfg1 b8N R1g5 Na6 Rh6 Qc1 Rf5 Kd7 Rfh5 Rb1 a1N Nc5 Nc2 Ra1 Rf6 Qb1 a2 Rg5+ Kh6 Rg8 Na3 Re8 Kg7 Rd8 Ba8 Bb7 Rhf5 Ba6 Bd5 Bb7 N6d4 Rf8 Rc6 Re8 Nde6 Re7 Rg8 Re8 Qc1 Ra8 Rc8 Qbe4 N6d4 Ncb3 Ng3 Qc2 Be4 Qcd1 Qh1 Qc2 Rfa5 Nc5 Bd5 Qcd3 Qd1 Rc1 Rb3 Rc3 Qa1 Qde4 Nge2 Re3 Rc3 Qb1 Qh2 Re8 Nde6 Re7 Qh3 Be8+
1Qb3Bk/n2n1r2/2p1rQ2/1BPr1QrR/4n2q/1N2q2r/nKR1n2b/1N4N1 b - - 0 1 illegal: No possible last move
b2NRnBq/7R/Qp1q2q1/n7/Q2k1r1n/n1B2q1P/1B1rq1NK/Nnb5 b - - 0 1 illegal: No possible last move
RNq2q2/q2n2bB/P1n1b2R/3N1QK1/1N1bbr2/1Qqk4/5Qp1/r3q1Bb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 c4 Ke5 e4 f5 a4 b5 h5 g5 a5 d5 h6 g3+ Kf3 g2 h7 b3 c5 b2 c6 g4+ Ke2 g3 Kf3 b4 c7 b3 Ne2 g1B Rh5 d3 Qc2 d4 Ra4 d2 Qc3 d1Q Ra3 Qc2 Qc6 d3 Qa6 d2 Qh6 d1B Bd2 Nd7 Rh3 Ne7 Ra1 Bd4 Ra3 Nc6 Be3 Bg7 Nc3 b1B Nd5 b2 Qh4 Qc3 Nb4 Rf8 h8Q Bb3 Ra4 Bb7 c8Q Be6 Qg8 Qb6 Ra1 Qa7 Rh2 Bd3 Bg1 b1Q Rh1 Qbb3 Ra2 Qc1 Nc3 Rf7 Ncd5 Qbc3 Be2 Bb1+ Bd3 Rf8 Kg2 f3+ Kh3 f2 Qf7 f4+ Qf5+ Kd6 Kg4 Kc5 e5 f1Q Qb8 Qfe1 Kg5 f3+ Qhf4 f2 Rh6 f1Q Ra3 Q1b2 Qf2 Qbc2 Be4 Kc4 Ra4 Bg8 e6 Rf6 e7 Be6 e8N Rf7 Qh3 Rf4 Nef6 Qcc1 Bf5 Be4 Bh7 Bh1 Qf5 g2 Nc7 Nd8 Nca6 Be4 Nfd5 Nc6 Na2+ Kd3 Qb3 Qc7 Nb8 Qa3 Rb4 Qc8 Rb7 Ra6 Ra7 Qaf8 Ra8 Qfe2 Qb6 Qeb2 Qb4 Qba3 Qb3 Qac5 Rg6 Qa7 Rh6 Rb6 a6 Rb4 Qa3 Rb1 Qb3 Ra1 Nab4+
1qB2q2/2Rpnr2/Q2R3B/1rrQ3K/5NrB/P1q2n1q/k1bb3N/1rN1q3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 f5 e5 b5 e6 g5 e7 d3 e8N b3 a3 b2 h5 b4 h6 b3 h7 g3+ Kf3 d2 Rh3 g2 Nc7 g4+ Ke2 f3+ Kf2 g3+ Ke3 f4+ Ke4 f2 Kf5 f3 Kg4 Ne7 Kh4 Bh6 Ne8 Ra5 Ra2 Ba6 Bd3 f1Q Bg6 f2 Ng7 Rb5 Bf7 Qf8 Be8 Nbc6 Bh5 Nd4 Be2 Nf3+ Kh5 Bb7 Rh1 Be4 Rh4 Rg8 h8B Bc2 Rd4 Qe1 Rd3 f1R Rd6 Rf2 Bd3 Qe3 Be4 Qc3 Bb7 Bf4 Bc8 Bh6 Ne2 g1Q Nf5 g2 Nfg3 Rg4 Nf4 Qe1 Nf1 g1Q Bf6 Qh2+ Bh4 Qh3 Nh2 Bg5 Rg6 Kd4 c5 Kc4 c6 Rc5 c7 Qee5 Qe1 d1Q Qh1 Qde1 Qg2 Qd6 Be3 Qb6 Rd6 Qb8 Bd2 Kb5 Be3 Ka4 Nd2 b1R Ra1 b2 Nb3 Rd1 Rc1 b1R Qh1 Rdd5 Qg2 Rf1 Qd2 Re5 Qd5 Rb5 Bd4 Rf5 Bg7 Rf2 Bh6 Rf7 Ne2 Bd2 Nf4 Rc5 Ba6 Re2 c8Q Re4 Bb7 Rb4 Qc6+ Rbb5 Bc8 Bd3 Qb6 Bc2 Qa6+ Qa5 Qc6 Rc3 Rg6 Bd1 Qa6 Rc7 Rc5 Bc2 Rd6 Rc6 Nd4 Rc7 Nde6 Rc6 Rc4+ Kb3 Nc5+ Ka2 Nb3 Rc7 Rcc6 Qc3 Rc5 Rcb7 Rcc6 Rc5 Rc7 Rbb5 Nc1+
3Q4/N1P3Rn/1QR1R1nr/3Q1n1n/n3q2B/b1pNr2q/Br1k1K2/rr5b b - - 0 1 illegal: No proof kernel
1bRq2q1/1NpqQ1R1/2n1nB2/1n2r1q1/2QN4/P4q2/NB2n1B1/r2nKbk1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 g4 Ke7 e4 Ke6 d4 f5 e5 Kd5 g5 Ke4 e6 b5 e7 h5 e8N h3 g6 c3 g7 b3 d5 c2 d6 b2 d7 f3 Be3 c1N Qb3 b4 Bc5 h2 Qa3 h4 Ba7 f2+ Kd2 f4 Nh3 f3 Bb5 f1Q Bc4 b3 Be3 f2 Qc5 Kf3 Bf4 Kg2 Qd4 Bc5 Qe3 Ba6 Ng5 h3 Be2 Rh5 Qe7 Ba7 Qf8 Nc6 Bd3 Nh6 g8Q Qd1+ Kc3 f1Q Bd6 Qf4 Qfg7 Nf5 Q8f8 Nfd4 Qgh8 Ne6 Nf3 Bb8 Nd4 Re5 Qh4 Qfg5 Qe7 Bc4 Rf1 h1N Ba3 h2 Nd6 Nf2 Nb7 h1Q Bc2 Qdg8 d8B Qh3+ Bd3 Qdf3 Rg1+ Kh2 Rg3 Ra7 Qf4 Nd1+ Kd2 Ne2 Nc3 b1N+ Ke1 b2 Bf5 Qhh8 Bh3 Ra8 Bg2 Kg1 Qe4 Bb5 Qd5 Ba6 Qc4 Ra7 Nd5 Nbc3 Nb4 b1Q Bb2 Nb5 Rg4 Qbg6 Rb1 Q6e8 a3 Qd7 Na2 Qhf6 Qd6 Qff8 Bf6 Qfd8 Nc5 Rb7 Qe7 Nd6 Rg3 Rb3 Nb7 Nb5 Rh3 Rc3 Rh7 Rc1 Rg7 Nd6 Bc3 Nb5 Rb4 Ra1 Bb2 Nd6 Qd5 Bd3 Qc4 Nb5 Ra4 Bf5 Ra8 Bh3 Bh1 Bf1 Bg2 Ba7 Rc8 Bb8 Qa4 Qfg4 Qc2 Qf3 Qc4
Br3rbN/4Bn2/nBR1K2n/1Qr1n2k/3R2r1/1Q3q1Q/1pP3N1/b1q1r1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 d5 e4 b5 h4 f5 h5 Kf7 h6 Kg6 h7 b3 a5 f3 Kg3 f4+ Kh2 b2 a6 f2 e5 f3 Kg3 b4 e6 b3 e7 d3 a7 d2 Bh3 f1Q Ra2 f2 Nf3 d4 Ne1 d3 Bg2 Na6 Qe2 d1R Ra1 d2 Qe5 Qdd3+ Nf3 Bg7 Qd4 Rb8 a8Q Nh6 e8Q+ Nf7 Qee5 Rg8 h8B Be6 Qed5 Re1 Qe3 d1N Nh4+ Kh5 Nd2 b1R Qef3 Ne3 Ra5 Ba1 Qb5 b2 Qff5 Rgc8 Qad5 Rc5 Ndf3 Qg1 Qdc4 f1R Ne5 Rf4 Qca4 Ref1 Bd2 Rbe1 Bb4 Qd1 Ba3 Qc1 Rh2 Qh1 Ba8 Rfc4 Rd2 Qf3+ Kh2 g3+ Kh3 Bd5 Ng2 Ng4 Ng6 Ngh6 Qab3 Rg4 Rd4 Bc4 Be5 Bd5 Nh8 Bc4 Ne3 g2+ Bg3 g1B Ng2 Bd3 Qfd7 Bh7 Raa4 Bg8 Rac4 Ree8 Bb4 Rfe1 Ba5 Rf8 Bb6 Rf5 Rc7 Rc5 Rc6 Rf4 Re4 Nd6 Qf5 Be3 Rd4 Re4 Qc8 g4+ Kh2 Ref4 Bh4 g3+ Kh3 Ndf7 Be7 Bf2 Nh4 g2+ Kh2 Be3 Qh3 Rg4 Q5a4 g1N Qab5 Qd5 Ng2+ Rh4 Kg3 Nf3 Bf6 N3e5 Be7 Bg1 Qe3 Nhg4 Kf4 Qb3 Kf5 Ngh6+ Kf6 Qd5 Qeb3 Qe4 Qhd3 Rg4 Ke6 Qe2 Qg3 Qf3 Qh3+
b1N2R2/2rn3B/1N2q3/2q1kRR1/n1Qr1N2/6np/PB1rqrqq/K1b3Q1 b - - 0 1 illegal: No possible last move
Bb5q/1b4r1/Nb4k1/3nNR1q/1N3n2/1bQ2QP1/1r1Rpn1B/nR2Kb1r b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 c4 d5 a4 e5 c5 b5 a5 h5 c6 e3 f5 e4 c7 e2 a6 h3 a7 h4 f6 h2 g3 d3 Nc3 d2+ Kf2 e1B+ Ke2 h3 Qa4 d1Q+ Ke3 d4+ Kf4 d3 Ke3 d2 Nf3 b3 Rb1 b2 Qa6 b4 Qa5 b3 Qf5 Nd7 Ba6 Rb8 a8N Rh7 Nb6 Ne7 Qe5 Nd5+ Kd4 e3 Kd3 Bf2 Ra1 b1N Ra2 b2 Ra3 Nf4+ Kc4 Rg7 Nb5 Bd6 Rd3 Bb7 c8Q Nc3 Qc6 b1B Nd5 Kg6 f7 Nc5 f8R Nb3 Rf5 Na1 Nb4 Qh8 Nc7 Ncd5 Qc3 Qe2 Bb5 d1B Nca6 Bb3+ Kd4 B1c2 Rd2 Bd3 Rhd1 h1N Ne5+ Kh7 Ba3 h2 Rb1 Qh5 Ba4 Bf1 Bb5 Nc7 Qf3 Ncd5 Bc6 e2+ Ke4 Bb6 Bb2 Bc8 Ba8 Bb7 Bc1 Nh3 Kd3 Kh6 Ra2+ Nhf4+ Kd2 Nf2 Ke1 h1R Be3 Bdc7 Ned3 Kg6 Rd2 Rc8 Bc5 Bb8 Bd4 Rc5 Be3 Rb5 Bc5 Ng4 Bg1 Nf2 Bh2 Ba4 Nc6 Rb2 Ndb4 Bb3 Ne5+
bBnn4/3b2N1/Q1n2r2/1R5b/1QB1Qrkq/qN1Rp1q1/nb1PN3/3Kn3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 a4 Ke6 f4 h5 g5 Kf5 g6 c5 a5 b5 g7 e5 a6 e3 a7 b3 Ra3 b4 Qf3 h3 Qg3 h4 Qg2 c3 Qf2 c2 Bc4 b2 Qf3 e2 Qg3 h2 Ra1 b3 Ra2 e4 Qe3 h3 Qc3 Qa5 Qf6+ Kg4 f5 Bd7 Bf7 c4 Nc3 b1B Ra4 b2 Qh6 Ba3 f6 Nc6 Bd5 Nd8 f7 Ne7 g8N Nc8 Qb6 Rh4 Nd1 c3 Kf2 e1N Bc4 e3+ Ke2 Qe5 f8Q Qg3 Qe8 Rh6 Qe7 Rf6 Qbc5 Rb8 a8Q Rb4 Qcc6 Ba2 Ra5 b1N Nf3 Bb2 Qaa6 Na3 Nd4 Nb5 Nb3 Nba7 Rd5 Bb1 Rf1 h1Q Rff5 h2 Rd3 Ba2 Qca4 Nac6 Rb5 Qe4 Qc5 h1B Ne7 Qh7 Qe5 Qhh4 Nf5 Bd5 Ng7 Bg2 Bg8 Rbf4 Bc4 Bd5 Qb4 Bf7 Na1 Bh5 Qe4 Bb3 Bf7 Bd5 Nb3 N6a7 Bg8 Ba8 Bd5 Nac6 Bc4 Ba1 Bb2 c1Q Ba3 c2 Nc3 Qb2 Rb8 c1N+ Kd1 Na2 Ne2 Qc3 Rb5 Bb2 Qf8 Bhe8 Bd6 Bh5 Bb8 Qb4 Qd6 Qa3 Qb4
N3b2r/nbQ3Bq/r4b2/BB3R1Q/k1n5/rbqp1Q2/rb1P3K/q1R4N b - - 0 1 illegal: No possible last move
1BR1b2n/r6N/3q1Qbq/2bRR1q1/q3NkN1/bpK1n3/rP4r1/2Q2bB1 b - - 0 1 illegal: No proof kernel
1NR1N3/n3b2k/1Rqn2rB/5bb1/1rQ1qp1P/1BK1nrQ1/b2n2N1/3bB3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 g5 e4 b5 d4 f5 Kd2 Kf7 h4 Kg6 e5 c5 e6 g3 a5 g2 a6 g4 a7 b3 e7 c3+ Kd3 c4+ Ke2 b4 e8N g3 d5 c2 Kd2 b2 d6 b3 d7 f3 Ra6+ Nf6 Rb6 c3+ Kd3 f2 Nd2 b1B Ne4 b2 Rb7 Ba2 Qg4+ Kh7 Nc5 b1B Qd1 Qe7 d8B Ne4 Qg4 Nd6 Rb5 Nc6 Be3 c1Q+ Ke2 c2 Kd3 Qe4+ Kc3 Be7 Qe2 Rb8 a8Q Na7 Qf3 Rf8 Nh3 g1R Rb2 g2 Qf4 Rb4 Bc4 f1N Bb3 Ba6 Qc6 Be2 Qf3 Bd1 Bh6 Ne3 Na6 Rf6 Nb8 Rg6 Qf4 Rf1 Qc7 g1N Qc4 Nf3 Qg3 Nd2 Nf4 Rf3 Rh2 Be2 Rh3 Qh1 Rh2 c1B Ng2 Bd1 Rh3 f4 Rh2 Bg5 Ba5 Qc6 Rh3 Bf5 Rc2 Qe1 Rh1 Qe2 Re1 Ba3 Rb2 Bdc2 Rc1 Bd1 Bb6 Ra4 Rcc2 Ng4+ Kd4 Qe7 Qb4 Qa8 Bd5 Nf7 Rc8 Qc6 Bc4 Qe2 Qb5 Bf8 Rb4 Nd6 Bb3 Qe1 Qc4 Bfe7 Bc5 Qe2 Rb7 Rb4 Rb6 Bd3 Kc3 Bf5+ Kb2 Qd3 Bf2 Qde4 Be1 Ne3 Kc3
3nbr2/1N1q2qQ/R6n/1r4b1/2pnnBR1/K1NRPBbQ/5kr1/2r1Qn2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 g4 Kc6 d4 Kd5 Kd2 Ke4 Kc2 c5 Kb2 b5 a5 f5 g5 h5 g6 c3+ Ka2 h3 g7 c4 d5 f3 d6 h4 d7 f4 a6 c2 a7 h2 Be3 c1B Nh3 f2 Qd6 f3 Qg3 Bd6 Bf4 Nh6 g8R Nc6 Rg1 h1N Qg2 Ng3 Bd2 Ngf5 Rf8 Nfd4 Qh1 Bg3 Be3 Rg8 Na3 b3+ Kb1 b2 Ka2 b1R Rg2 b4 Nf4 h3 Rf6 h2 Qg1 h1Q Qh2 Qg1 Qh3 Qc7 d8Q Qd7 Qc7 Nd8 Nd5 Rb8 a8Q Rb5 Qa6 Bb7 Rd6 Bc6 Bg5 Be3 Qca7 Rc1 Qa4 b3+ Kb2 Bef4 e3 Rf8 Be2 f1N Bd1 f2 Bf3+ Kd3 Nc3 Nd2 Qc7 f1N Rd5 Ne4 Ra2 Be5 Bf4 Bf6 Rd6 Rg5 Nab5 Rg7 Rd5 Bg5 Ka3 b2 Nd6 b1R Nb7 Rb5 Rd6 Qh2 Rg1 Qg2 Ra1 Kd2 Qb3 Ke1 Qd1+ Kf2 Rd5 Qe8 Qcd7 Rg6 Qh7 Qe6 Rd6 Be8 Ra6 Qd7 Rb1 B3h4 Rb3 Qgg4 Rg3 Qg7 Rg1 Q4d7 Rg4 Bg3 Ne2 Rgb6 Rd3 Rb2 Nc3 R6b5 Qh5 Kg1 Qh4 Rg2 Qh3 Kf2 Qe1+
n1B1q1bn/2qr1qR1/N2Rr2R/1Q1Q4/n1p4K/1PbNqr2/1qr3N1/B4k2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 g4 Ke6 e4 Ke5 d3 Kd4 g5 f5 g6 a5 e5 h5 g7 c5 e6 c3 e7 c4 e8Q f3 Bd2 h3 Kg3 a3 Bg2 h2 Nh3 a2 Qee1 f4+ Kf2 c2 Ng5 c1R Bh3 a4 Qe6 h4 Qg1 a3 Bf5 h3 Qf1 Rh6 Nc3 Rc2 Qg1 Bb4 Na4 Ra7 Qg2 Bc3 Be4 Rd7 Nb6 Na6 Bb7 Ne7 g8R Qe8 Qgg4 Ng6 Rad1 a1Q Rde1 a2 Ne4 Nh8 Bd5 Nc7 Qh5 Na8 Rg7 Qb1 Nc5 a1N Bb7 Nb3 Qef7 Re6 Na6 Nc5 b3 Na4 Qb5 Qa2 Nd5 Qb2 Rhf1 h1R Ne3 h2 Ng2 Rg1 Ra1 h1Q Rad1 Qh3 Qff5 Rh1 Rg1 Rh2 Rh1 Qh7 Qh5 Rh3 Qhg5 Rg3 Rh6 Rh3 Be4 Bb7 Bf5 Bd5 Bg4 Qe4 Qf5 Qe5 Qf7 Qc7 Qg8 Ke5 d4+ Ke4 Qf7 Kd3 Qh5 Be4 d5 Bh7 d6 Bg8 Qf7 Rde7 d7 Rg3 d8N Rd7 Kg1 f2+ Kh2 f1Q Nc6 f3 Ne5+ Ke2 Nd3 Qf2 Qff5 Qfc5 Qd5 Qe3 Bf5 f2 Be1 Be5 Bc3 f1Q Bh3 Qff7 Bd4 Qbc1 Ba1 Qb2 Bf5 Bc3 Bh3 Qec1 Rd2+ Kf1 Bf5 Rg5+ Kh3 Rg3+ Kh4 Rf3 Re2 Rf6 Re6 Qe3 Rd6 Rd8 Bc8 Re6 Qdc5 Rd7 Qd5
3r3n/BKN1q1kR/1Q3nb1/8/npB3Q1/4NB1P/1b1bqN1b/1r2nrRb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 c4 Kf7 e4 g5 a4 d5 a5 b5 c5 f3 e5 d3 Ke3 d2 Kd4 g3 e6+ Kg7 e7 f2 e8B g2 c6 g4 h3 f4 a6 b3 c7 b4 a7 f3 Be2 f1Q Ke5 b2 Bf7 g3 Bg6 d4 Bb5 f2 Bc6 d3 Ra4 Nd7+ Kd5 Ne5+ Bd7 Qe2 Nf3 g1B Bf7 f1R Rh2 g2 Nh4 Be3 Ng6 g1B Ne7 Bb7+ Kd6 Ng6 c8Q Bh1 Nc3 b1B Qc5 Nf6 Rg2 Bh2+ Kc6 Qe8 Ned5 Qe7 Bde6 Rg8 Ra3 Rd8 Bg4 Nh8 a8N Bd4 Ne4 Bb2 Ne3 Bc2 Qe1 d1N Qh4 d2 Bc4 Nc3 Rg1 d1N Ra7 Na4 Nc7 Nf2 Qb6 Nd3 Kb7 Ne1 Qg3 Bd3 Qf3 Bc2 Nf2 Bg6 Qe4 Rd1 Bd2 Rb1 Bf3 Kh7 Qee6 Bh6 Qg4 Rd8 Bc3 Kg7 Bd4 B6f4 Ra5 Qf7 Rh5 Qe7 Rh7+ Kf8 Nf5 Be5 Qb5 Bef4 Ba7 Be3 Qb6 Bd2 Ba6 Kg8 Ne3 Kf8 Bb5 Kg8 Bc4+ Kf8 Rh6 Kg7 Rh7+
2Q4K/k6N/r1Bb1RR1/B1qb4/rp4Rr/qPBnqb2/2rn4/2rQ2Nq b - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 f5 cxd4 b3 a5 f6 a4 Nh3 a3 Ng1 exf6 Qd3 f5 Qc3 f4 Qb2 axb2 Kd2 d5 Kd3 Kd7 e4 Kc6 c4 Kb6 h4 f5 a4 g5 e5 f3 h5 g3 e6 g2 e7 g4 e8Q f2 h6 f4 h7 g3 Na3 b1R Ra2 f3 Rb2 Ra1 Nb1 Qe7 Qh5 Be6 Rh4 Nc6 Nd2 Nf6 Ne4 Nb4+ Kd2 d3 Ne2 g1Q Ke3 d2 Kf4 d1Q Kg5 g2 Kg6 d4 Nd6 d3 Nf7 d2 Ng5 Nd3 a5+ Ka6 c5 b5 c6 Ra4 c7 Ne4 c8R Qa3 Rc6+ Kb7 Rbc2 b4 a6+ Kb8 a7+ Kb7 R2c4 Qh1 Rf4 g1Q Bg2 f1R Bb2 f2 Be5 Qe1 Bc7 d1B Ba5 Bg8 Re6 Bd6 Kg7 Ka6 Rg6 Nd2 Nc1 Bg4 Ne2 B8e6 Bf3 Rhc8 Rcd4 Rc2 h8B Bf7 Nh7 Bg8 Bc6 Bd5 Bd7 Kb7 Nc1 Qe6 Ne2 Rfc1 Rf3 f1R Bb5 Qg3 Ng1 Qc8 Be8 Qc5 Bc6+ Ka6 Rf7 Rf4 Rc4 Bf5 Qd1 Rh4 Rcg4 Qge3 Rf8 Bf3 Kg8 Bd7 Bc3 Be6+ Kh8 Bed5 Rd4 Rb8 Rdg4 Rb7 a8Q+ Ra7 Qd8 Ra8 Rff6 Ra7 Bd7 Kb7 Qg8 Ra6 Qc8+ Ka7 Bc6
1nQRnb2/1b3B1K/1qr2kn1/q6Q/p5Nq/B1PQR2b/3Nb1N1/r4qb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 a5 Ke4 f5+ Ke5 h5 b4 d5 g4 a3 e4 f3 g5 d3 b5 d4 g6 h3 b6 h2 b7 d2 g7 d3 Bg2 f2 Qe1 d1B Qe3 f1B Nc3 a2 Qd2 h4 Bb2 h3 Qe3 d2 Nge2 f4 Nb5 f3 Kf4 f2 Kg5 Rh6 e5 Nf6 e6 Qb6 Nbc3 Ne8 Nf4 Bde2 Ne4 d1N Qd3 Ne3 Rd1 a1B Nd2 Ng4 Bd5 Ne5 Ng2 Ng6 g8Q Ra6 Qh8 a4 Bc1 Bd4 c3 Rh4 Rg1 h1Q Qh5 h2 Ba3+ Bc5 Ba2 Rb4 Re1 Rb1 Bc4 Ra1 Kf5 Nd7 b8Q Bb7 Qc8 Nb8 Kg5 Qa5 Bb3 Rc6 Rd1 Ng7 Kh6 Ne8+ Kh7 Kf6 e7 Ba7 Bf7 Qb6 Ne1 Bh3 Rg3 f1Q Re3 Qd5 Ng2 h1Q Rb1 Qe4 Rb4 Qef3 Rd4 Qf5 Rd8 Qfa5 Rf3+ Bf5 Ne3 Qbc5 Qc7 Qh4 Qc8 Nd6 Ng2 Qcb5 Rh3 Bg1 Rg3 Bh3 e8N+ Ke7 Nf6 Qbb6 Bb2 Ne8 Ng4 Rf6 Re3+ Re6 Nh6 Kf6 Ba3 Rc6 Ng4+
1RRbB3/2nbbQkB/N2nqR1r/1N1rpb2/1Q2r3/P2br3/4qB2/1n4K1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 f4 e5 Kf2 h5 c4 d5 c5 b5 a3 e3+ Kg2 d3 g5 d4 f5 b3 g6+ Kg7 c6 d2 c7 e2 Bb2 e1B Nh3 d3 Ng1 h3+ Kh2 h4 Qc1 d1R Qc2 d2 Ne2 b4 Nd4 Qd7 Bc3 b2 Ba6 b3 Nb5 Nh6 Qc1 Be7 Kg1 h2+ Kf1 h3 Nd4 Qe6 Nb5 Nf7 Bd4 Nd6 N1c3 b1B Ne4 b2 Nc5 Rh6 Bf2 Bd7 c8R Bc2 Bb7 b1N Bc6 Ra4 Na6 Re4 Ra2 Re3 Rb2 Rh4 Rg1 h1B Rg2 Bd8 Kg1 Bd3 Rh2 Rhe4 f6+ Kg8 f7+ Kg7 Qc2 Bf3 Qc3 Bg4 Qb4 Bf5 Rg2 Be7 Rg4 Bd8 Rf4 h2+ Kg2 Bg4 Rf6 h1R Rb3 Rh8 Kg1 Rh6 Rb2 Bf5 Rb3 Kh8 g7+ Kh7 g8B+ Kg7 Bh7 Be7 Nc5 Na6 Rb2 Nc7 Na6 Rc1 Rb3 d1Q Rb2 Qe2 Rb3 Rd1 Rb2 Qa2 Rb3 Bde6 Be8 Bd7 Rb2 Qe6 Rb3 Rd4 Rb2 Rd5 Qh4 Rc1 Qh5 Rc4 Rb4 Rce4 Rb3 Kh8 f8Q+ Qg8+ Qg5 Bd8 Rb4 Nc4 Nd4 Bd2 Qc5 Qe6 Rbb8 Bb4 Qh5 Kg7 Qb6 Bc5 Qb4 Bce7 Nb5 Nd6 Qf7+
2q1k1QN/K3nN2/1B2nRb1/P2B2p1/Rb5n/NQ1r3n/r1b4b/2Qn1q1r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 d3 c5 b3 c6 d4 c7 f3 e5 d2 e6 b2 h5 d3 Ke3 b4 e7 g3 h6 g2 h7 b3 Qe1 d1N+ Kd2 f4 Qe5 f2 Rh2 f3 Qc5 Nc6 Ra2 Bf5 c8N Nd4 Rh6 Bg6 Nh3 g1B Na3 b1B Bg2 f1Q Nf4 f2 Bd5 b2 a5 Bh2 Qb4 Ne6 Qb3 Bc2 Ra1 b1R Nd6+ Kd7 Bb2 Qc8 Bd4 Rb2 Nf7 Ke8 Bb6 Ra7 Ra2 Rd7 Ra1 Bf5 Rf6 Ra2 Qb1 Bg6 Qb3 Nb2 Ke3 d2 Nh5 Nd3 Nf4 Nec5 Kd4 d1N Kc4 Ne6+ Kb5 Rd8 Bc7 Rd7 Kb6 Rd8 Ka7 Rd6 Nh5 Ndf4 Bb6 Nh3 Nf4 Rd8 Bf3 Rd3 Bd5 Qg1 Qc4 f1N Qb3 Rb2 Ra2 Nd2 Ra1 Nf3 Ra2 Bh5 Ng6 Qf1 Ra1 Nh4 Ra2 Nh6 Ra1 N6f5 Ra2 Rg8 h8Q Rg7 Qh6 Rh7 Ngh8 Bg6 Ra1 Ra2 Qh5 Nh6 Qe2 Ng8 Qe3 Rh5 Qc1 Bg7 Rf3 Bc3 Rf6 Bb4 Nc4 Rb2 Ra4 Ra2 Na3 Bhd6 Qf4 Ng1 Ba8 Ng2 Qd4 Rh1 Qe3 Nh4 Qc1 Kd7 Nd8 Bh2 Bd5 Nh3 e8Q+ Kd6 Bg2 Ne7 Qg8 Kd7 Ndf7 Nd5 Qh7 Ne7 Bd5 Ke8 Qg8+
3nRbq1/4Nq1k/q7/p3QB1r/KNqb3P/B5rb/1QRr1q2/bB4nR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 b4 d5 h4 a5 e4 f5 c4 Kf7 Kc2 Kg7 c5 a3 Kb3 a2 e5 f3 e6 g3 b5 f2 b6 f4 b7 d3 e7 f3 e8Q g2 c6 d4 c7 g4 Ba3 d2 Qb5 g3 Qa6 d3 Qc2 d1R Ka4 d2 Qd6 Bh3 c8B Nh6 Qe7+ Nf7 Qc4 Kh7 Qcc5 Nd7 b8R Ne5 Bb5 f1Q Qb7 f2 Qf3 Qc4+ Qb4 f1Q Qf6 Nf3 Ne2 g1B Qe6 g2 Bba6 Bd4 Qe7 g1Q Nc1 Qgf2 Nd3 Ng1 Qe5 Qdf6 Nc3 Nd8 Nd5 Qf7 Rb1 a1B Ne7 Rg8 Be6 Rg3 Rc1 Ra7 Bb5 Rc7 Rc8 Rc5 Rc2 Q1g2 Bbd7 Qb7 Bd5 Qba6 Rb8 Qg8 Bb7 Qcf7 Qb2 Rb5 Nb4 Rd5 Qc7 Rh5 Be4+ Qfg6 Rc6 Ne6 Bd5 Q6f7 Re8 Nd8 Bf3 Rb1 Bd5 d1Q+ Bb3 Qdd2 Ba2 Qdd3 Qe5 Rd1 Rc2 Qdc4 Bb1 Rd2 Bf5+
B2r3R/3Q1r2/4n1P1/b1BKb3/Q5nn/2RB2np/1nqqbNNq/1kq2Q2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 a5 b5 g5 h5 f5 e3+ Kd3 e4+ Ke2 Kc4 f6 d5 c3 h3 a6 d3+ Ke1 e2 Kf2 e1N Ke3 b3 a7 b2 f7 b4 g6 h4 Qf3 Kb3 Kd4 Kc2 c4 e3 c5 e2 c6 d2 c7 d1N Qa3 h2 Bd2 b3 Bc3 h3 Ra2 Ba6 c8B Rh7 Ke5 d4 Qe7 d3 Qb4 d2 Bg4 Nf6 Qa4 Ng2 Bh5 e1B Ba5 Nh4 Qg4 Qc7+ Ke6 Bd6 f8Q Be2 Qf7 Nc6 Bb6 Be5 Bc5 Rd8 a8Q Rg7 Qga4 Ng4 Qd7 Rf7 Nc3 Nd4+ Kd5 Ne6 Ne4 Kb1 Nf3 Qb8 Rg1 h1N Q8a6 Ng3 Q6c4 Ndf2 Ra3 Nd3 Nf2 d1Q Rh1 B1c3 Ne1 Qd2 Ng2 Ba5 Qf4 Kc1 Qf6 b1Q Qf5 b2 Rc3+ Qbc2 Qf6 Nh2 Bf3 b1Q Qf5 Ng4 Qff4 Bd1 Qfc4 Nb2+ Bd3 Qa1 Re1 Kb1 Re4 Be2 Rf4 Rg7 Rf8 Rf7 Rh8 Qb4 Qa6 Qbf4 Q6c4 Qa2 Be4 Qc1 Bf3 Qfd2 Rh7 Qa1 Qf4 Qf1 Rh8 Qh1 Nd1 Qh2 Kc6 Kc1 Bd5 Kb1 Qf1 Qa3 Bf3 Nc4 Nf2+ Qac1 Bd5 Nb2 B5e4 Bf6 Kd6 Bd4 Ba8 Be5+ Kd5
b1nQR1r1/3RQn2/1Nb1P1nr/4qpB1/3Qr2k/N2BNr2/qn6/b4nK1 b - - 0 1 illegal: No possible last move
n1bq4/1b2q3/1k1pqq1P/3R1r1r/2B5/bQq2Rnr/KB3RN1/b1NQ2Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 h4 g5 a4 b5 e4 f3 c4 f2 Kc2 g3 Kb2 g4 e5 d3 e6 b3 e7 d2 a5 f4 h5 b4 a6 f3 a7 g2 c5 g3 c6 Nf6 c7 Ne4 Nc3 Na6 Qc2 d1Q Rh2 Qd2 Nh3 g1B Bc4 f1R Nd1 f2 Bd3 g2 Ng5 Ng3 Nf3 Qc3+ Kb1 b2 Ka2 b3+ Ka3 b1B Ne1 b2+ Qb3 d6 Nc2 Kd7 e8R Kc6 Ne1 Bg7 Bb5+ Kb6 Ra2 Be4 Ne3 b1Q Rh3 Beb7 Bb2 Qe4 Nd3 Qe6 Nc1 Rb8 a8Q Bd4 Ra1 Bc5+ Ka2 Ba3 Rf8 Bh2 Rh4 g1Q Rhf4 Qh1 Rd4 Qhe4 Rd5 Qeh4 Rf3 Qhe7 Ng2 Rh1 Rf7 f1Q Rf2 Rf8 h6 Rf5 Rf3 Bg1 Qd1 Bd4 Bc4 Rhh5 Rf2 Q6f6 Rf3 Qfe1 Rb1 Q1e6 Qg1 Bd7 c8Q Nc7 Qa4 Na8 Qad1 Rh3 Bd3 Rfh5 Qc4 Rc8 Qca4 Rc5 Bc4 Bdc8 Qab3+ Rb5 Ba1 Rf5 Rb2 Rfh5 Rbf2 Be5 Qbc2 Bd4 Bb2 Rc5 Rg5 Rf5 Qb3+ Rb5 Qa4 Qa5 Qab3 Be5 Bc3 Qb4 Be1 Ba1 Bc3 Qa5 Bb2 Qac3 Rg4 Qde8 Rd4 Q8d8 Qa4 Rbe5 Rd5 Ref5 Qab3+
b1nr1QQn/Nr3b2/2PNrQ1K/5b1B/1p4bb/qr4n1/4k1RB/N3qR2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 f5 c4 d5 a4 b5 a5 h3 a6 h2 a7 d3 e3 d4 c5 b3 g5 b4 g6 b2 g7 d2 Bc4 d3 Qb3 d1Q+ Nf3 d2 Qc2+ Qd3 Bb5 Nh6 g8Q Qe1 Ra4 d1B Na3 b1R Bb2 Nc6 Qd2 Ne7 Nc2 Nf7 Qe2 Rb8 a8Q+ Rb7 Ra1 Qa3 Rf1 h1N Ng1 f3 Bg7 f4 Qf2 Ng3+ Kh4 h5 Qh2 f2 Bd7 Kd3 e4 f3 e5 Rb3 Be8 Bf5 e6 Nc8 Ne2 Be7+ Bf6 Rh6 Ned4 Nh8 Kg5 h4 Nb5 h3 Bh5 Ke2 Na7 Bd8 Qg1 h2 e7 h1B Be5 Re6 Rb1 Bg2 Na1 Bh1 Qh2 Bg2 Rg1 f1B Qh4 Bh1 Qf8 B1h3 Qd4 Bhg4 Bc7 f2 Qdf6 f1R e8N Rff3 Kh6 Rfd3 Nd6 Bc2 Rf1 Bg6 Rg1 Bf7 Qg8 Rd2 Bb8 Bf5 Rd1 Qf2 Rdf1 Qe1 Bc7 Rb5 Qb8 Ba8 c6 Rb7 Qf8 Be7 Qg8 Nb6 Qbf8 Nc8 Ndb5 Rd8 Bf4 Nh1 Bh2 Ng3 Nd6 Rf3 Qfg6 Bh4 Qf6 Rb3 Rg2+
1b6/r1Q2n1b/1P2kb2/5bBb/NR2qn1K/1BNR1Qp1/2qn2r1/Qq2Bn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 h4 g5 c4 d5 b4 f5 e4 a5 c5 a3 c6 a2 c7 f3 Kg3 d3 b5 a4 h5 f4+ Kh2 d4 b6 d2 h6 d3 e5 f2 e6 g3+ Kh3 f3 h7 g2 Qc2 d1B Bb2 g4+ Kh4 a3 Kh5 g3 Nd2 Nc6 Qb3 Ne5 Qa4 Nf6+ Kg5 Nd5 Kh4 Qe8 Rh2 Bc2 Rc1 a1Q Nc4 d2 Ne2 g1Q Nd6 d1B Qe4 a2 Rb1 Qg2 Bc1 Ra7 Nc3 Nf7 Bc4 f1N Nb7 f2 Rb4 Nf4 Qf3 Qb1 Bb3 a1B Nc5 Nd2 N5a4 f1N Rh1 Kf6 e7 B8f5 c8Q Qc6 e8Q Bd6 Qed7 Bb8 Qdc7 Qe4 Qa6 Qge2 Rh2 Q2c4 Re2 Ke6 Re3 Rc8 h8B Bb2 Qg2 Bh5 Qf3 Ba1 Bf6 Rd8 Bg5 Re8 Ne2 Bf6 Rd3 Rd8 Bb2 Rd5 Bc3 Ra5 Nb2 Ra2 Na4 Rb2 Bd4 Ra2 Bf2 Rb2 Be1 Ra2 Rd4 Bd3 Rd5 Qcc2 Nec3 Bh7 Bf2 Qe3 Rdb5+ Nc4 Qa5 Bdf5 Be1 Qcd3 Rd5 Rg2 Nb2 Qee4 Qa1 Qdc2 Nba4 Ncd2 Rd3+
bRB2Qr1/2B1r2q/p2bNbrn/Rn2k2b/2K4P/1n2B1n1/n2N4/1Q1R2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 b4 d5 e4 g5 h4 a6 c4 g3 b5 f3 c5 g2 b6 a3 c6 g4 c7 g3 b7 a2 Bb2 f2 Na3 Nh6 Nb5 Rg8 Nc3 Nc6 b8B Qe7 Qe1 Ke5 Na4 f5 Nb6 f4 Nh3 g1R Rh2 f3 Bg2 f1N Qa5 f2 Rc1 a1B Rc3 Nd2 Ng5 f1N Qa2 Bb7 Rc2 Nb3 Rh1 Ra7 Nc8 Ba8 Rc5 Qh7 Nb6 Bd6 c8R Re7 Ne6 Na7 Ra5 Nb5 Bh3 g2 Bc7 Ng3 Bc1 Bc3 Rb8 Rg6 Kc2 d3+ Kb1 Kf6 Bd8 Rg8 Qc2 d2 Ka2 d1N Bc7 d4 Nf8 d3 Bb2 d2 Qb1 Nc5 Nc4 Ngf5 Bc1 Reg7 Bg4 Rg6 Bh3 Ng3 Bc8 Re1 e5+ Kf7 e6+ Kf6 e7 Re3 e8Q Re7 Re1 g1Q Qd8 Bd4 Ne6 Ndc3+ Kb2 d1B Be3 Nb3 Nd2 Bh5 Rd1 Na2+ Kc2 Kf5 Kd3 Bf6 Kc4+ Ke5 Qf8
1nb2R2/NNk1r2n/p1nqQ1NR/Q2n1q2/PbK2n2/r7/1b1Br3/B3R2b b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 g5 d6 Bd3 dxe5 Bf5 e4 Bg4 hxg4 Ke2 Kd7 b4 e5 d4 c5 h4 f5 a3 g3 d5 g2 d6 e3 h5 f3+ Ke1 e4 b5 e2 Kd2 e1N Kc3 e3 g6 f4 g7 f2 b6 f1Q b7 f3 h6 f2 h7 e2 Rh5 Ne7 g8Q Nc2 Rf5 e1R Qd2 Nd5+ Kb2 c3+ Kb3 c4+ Ka4 Nd4 Qd1 c2 Re5 c3 Qg5 Re2 Nf3 g1N Re6 Nh3 Rh6 Ndc6 Bd2 c1N Kb5 c2 Nc3 Nd3 Kc4 c1B Qb3 Nd3f4 Nh4 Bb2 Nb5 a6 a4 Ra7 Qh5 Ng5 Re1 Qh3 Ng6 f1B Qe3 Qf5 Qb3 Rg8 h8B Nh7 Qe3 Qe7 Qe6+ Kd8 d7 Qd6 Bhc3 Bg2 Bh8 Bh1 Bhc3 Ra8 Na7 Kc7 d8N Rg7 Bd4 Re7 Bh8 Re3 Qg5 Ra3 Qh5 Bc3 Bd4 Bb4 Ba1 Bg7 Qg5 Nd7 b8R Bb2 Rb5 Rb8 Ra5 Rb5 Nb7 Ndb8 Qh5 Ndf6 Qg5 Re5 Qh5 Re2 Re5 Qg5 Rf5 N6d5 Rf8 Qg4 Qhe5 Qg5 Qc3 Qf5 Qce5 Ndf6 Qb5 N6d5 Qa5+
r5q1/2Kn2p1/b4Nn1/BB3Nr1/P1Qn1R2/N2bq3/1bnb2nk/3RBq1Q b - - 0 1 illegal: No possible last move
K1b2b1Q/B1BQ1P1r/1r6/k1R3r1/Nn1n2BR/1p3r2/bqbN1q2/1R1n2b1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 h4 e5 c4 d5 a4 Kd7 f4 Kc6 a5 b5 h5 d3 Ke3 b3 a6 Kb6 h6 d2 f5 b4 h7 d4+ Kf2 g3+ Ke2 g2 f6 b2 a7 d3+ Ke3 g4 f7 b3 Nf3 g1R Ne1 g3 Nc3 b1B Be2 g2 Ra5 Nf6 Na2 Nc6 Ba3 Nd4 Nf3 Rb8 Nc3 Ba2 a8R Qd6 Bb2 Qa3 Rc5 Rb7 Qa1 d1B Ra4 Bc2 Nd2 Rb8 Bc1 Qb2 Bg4 Rf1 Rh4 Rf5 Ra7 Rg5 Re7 Ka6 Na4 Rb6 Re6 Nd7 Rf6 Nb8 Rf1 Nbc6 Rg1 Nb4 Rgh1 Rhg8 h8B R8g7 Rd1 Rh7 Bf6 g1R Bd8 Rf1 Bc7 Rf2 Rb5 Rf4 c5 Rf1 c6 Rf4 Nf3 d2 Rc5 Rff5 Bb8 Rf6 c7 Rf4 Ba7 Rff6 Kf2 e3+ Kg2 e2 Rdh1 d1N Nd2 Nf5 Kf3 e1B Rg1 e4+ Kf4 Bb7 c8Q e3 Qd7 e2 Rf1 Bf2 Re1 Qa3 Ke5 Bg1 Qc3 Bc8 Qh3 Nc6+ Kd5 Qb2 Rf1 e1Q Qc3 Re6 Qh8 Qf2 Re1 Re3 Rf1 Qb1 Bb2 Rg3 Be5 Qb2 Bf4 Rf3 Bc7 Bg7 Re1 Nfd4+ Kd6 Nc3 Rb1 Nd1 Bd8 Nb4+ Kc7 Rbf6 Kb8 Bf8 Ka8 Rb6 Rc4 Ka5 Bc7 Bd6 Rc3 Bf8 Rc5+
bQNbk1b1/2r1P1rr/B2Q1n2/B1qR2nq/1Q2R3/8/N1p2r1q/K3b1rB b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 Kd2 b5 Kc2 h5 Kb2 h3 g4 f3 e4 b3 d5 f4 e5 h4 a5 h2 g5 h3 d6 c3+ Ka3 b2 Ka2 c4 a6 b4 a7 b3+ Ka3 c2 e6 f2 g6 c3 g7 f3 Be3 c1B Bd3 f1Q Bg5 f2 Be2 c2 Bh4 Bd2 Qe1 Nh6 g8B Qc7 Nc3 b1R Nd5 b2 Ka2 Rh7 Nb4 Nf7 Be7 Ng5 Nc6 Qg2 Bf1 Nd7 Ba6 f1R Ne2 Nf6 Nc3 Rf2 Bd8 Be7 Rg1 Rb8 a8Q h1B Na7 Qc5 Ba5 Bd8 e7 h2 Bd5 Rb7 Qb8 Be6 Nc8 Rc7 Qe4 Rc1 Rd1 b1R Qeb4 Be1 Rd4 Rb3 Re4 Bg8 Rb1 Qf3 Ka1 Qh5 Na2 Rg3 Ba8 Bf3 B8b7 h1Q d7+ Kf7 Bc6 Q1h2 Ba8 Rd1 Bc6 Rg1 Bcb7 Rd3 Rd1 Bg2 Bc6 Rg3 Rd2 Nf3 Rd5 Rgg7 Bcb5 Ng5 Be2 Bf1 Bf3 Bb5 Bg2 Bc6 Bh1 Ba8 Qc4 Rb7 Nb4 Bc7 d8Q Ra7 Qd6 Ke8 Na2 Bd8 Qd4 Rc7 Qdb4
QrNB2n1/1q1nPrqb/1qQ5/1R1qb1n1/4Np2/b2Bkb2/1R6/QKR2q2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Bd2 f3 e4 Ke7 h4 Rh7 a4 Kf6 c4 Ke5 c5 f5 c6 b5 h5 d5 c7 g5 h6 b3 a5 f2+ Ke2 f4 Kd3 g3 a6 g4 a7 b2 Kc2 b4 Bc1 d3+ Kd2 Kd4 e5 g2 e6 b3 Qe2 g3 Ra5 Ba3 e7 Rf7 h7 Bg4 c8Q Nd7 h8R Rb8 Qa6 Bf3 R1h4 Qf8 a8Q Qg7 Qae6 Be4 Kd1 d2 R8h6 Bh7 Nh3 g1N Qe1 g2 Bc4 Nf3 Ng5 g1B Nc3 b1Q Rh2 b2 Na4 Qe4 Bf1 b1Q Nb6 Qe3 Ne4 Ng5 Be2 Qb2 Rf6 f1Q Rg2 Qb5 Kc2 Qc6+ Rc5 Qb7 Rb5 Qef2 Nc8 d1B+ Kb1 Qe3 Bd2 Bf2 Bc4 Bf3 Ka2 Bg1 Qd1 Bf2 Qb1 Be1 Ba5 Bc3 Qa1 Bcb2 Bb3 Kd3 Rh2 Be5 Rb2 d4 Bc2+ Ke2 Bb6 d3 Bd8 d2 Qd5 d1Q Rc6 Qeb6 Bb1+ Qd2 Rc1 Ke3 Qc6 Qd6 Bd3 Qd5+ Kb1
1n2Q1r1/2bPK3/7q/2Q1NRrb/Q1nkBBb1/1pr5/bq5q/1qqN2RR b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 b5 a4 f5 e4 c5 g4 f3 a5 f2 a6 h3 a7 h2 g5 b3 d3 b4 g6 b2 g7 c3 Qa4 c2 Na3 b1Q Bg2 f1B Qa5 f4 Nc4+ Kd4 e5 f3 e6 f2 e7 Be2+ Kg5 f1B Nb6 h5 Qa3 c4 Nd5 c3 Nc7 h4 Bb7 h3 Qb2 Bcg4 Ra5 Nf6 g8Q Rh5+ Kg6 Ne8 Kf7 Rg5 Bf4 c1Q Qa3 c2 Nd5 Qb6 Nc3 Nd6+ Kf6 Bef3 e8R Nc4+ Qe6 Bd6 Rg8 Qbb2 Be4 Bc7 Ke7 b3 Qc8 Qh6 Qa4 Qcb1 Qf8 c1R Nd1 Rc3 Rf5 Bh5 Qfe8 Bfg4 Qec6 Nd7 Rg7 Rg8 a8Q Q1c1 Qc8 Nb8 Q6e8 Bg2 Bd5 Be4 Nf3+ Kc5 Ne5 Kd4 Rf6 Bh7 Be4 Qcb1 Rf5 B7g6 Rg1 h1Q Rh7 h2 Rh8 Qhg2 Rh7 h1Q Rh8 Qgh2 Rh7 Kc5 d4+ Kb6 d5 Kc5 d6 Kd4 d7 Q1c1 Ba8 Qe4 Bb7 Qeb1 Be4 Qf8+ Ke6 Qh3 Qe7 Q1a1 Qce8 Qg7 Rh6 Bh7 Bf3 B5g6 Rh5 Qh6 Bg2 Qg3 Rhh1 Qgh2 Qeb4 Bf7+ Ke7 Bfh5 Rf8 Bb1 Rf5 Ba2 Be4 Qab1 Qc5+
7Q/3pb2r/qkB1nrbQ/3bN3/1q3Qqn/1B1bB2R/1qq1PKN1/1r5R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 c4 h5 a4 b5 g4 f5 a5 h3 g5 d3 g6 b3 c5 b2 g7 d2+ Kf2 h2 c6 b4 c7 f3 a6 b3 a7 h4 Nc3 b1R Ra3 h3 Kg3 b2 Qe1 d1Q Kf2 f4 Ra1 Be7 Bg2 Ba6 c8Q Rh7 Nb5 Qc2 Qa5 Nc6 Ke1 f2+ Kf1 Nd4 Qac7 Ne6 Qc3 Nh6 g8B Nf5 Q3c5 Nh4 Nc3 Bd3 Q8c7 Qc8 Bc6 Qa6 Q7d6 Kd8 Qdd4 Kc7 Qb5 Rf8 a8Q Rf6 Qba4 Bg6 Qe4 Kb6 Qe5 Bd3 Nf3 Bg6 Rg1 h1B Be4 h2 Bc6 Bd3 Nd1 Bg6 Ng5 Bhe4 Qd6 h1B Nf7 Bd3 Ne5 Bd5 Rh1 Nf3 Kg2 Nh4+ Kh2 f1Q Ne3 f3 Kg3 f2 Rh3 Qe1 Qf4 Qea5 Ng2 f1Q Be3+ Qac5 Qh6 Qf5 Qf4 Qg4+ Kf2 Rg1 Bf7 b1Q Qh8 Qbb2 Bg8 Bd8 Qf8 Be7 Qh6 Rb1 Ra3 Nd4 Rh1 Qcb4 Rc3 B5e4 Bb3 Bd5 Bd2 Ne6 Bc1 Bb5 Rch3 Bbd3 Be3+
1Qq1R3/qr1p3b/k1q4n/4Bq1Q/rN6/Pb3qr1/nB1r1bRK/2RBN3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 Kg2 b5 h4 f5 c4 f3+ Kg3 d3 e4 d2 a3 b3 h5 f4+ Kh2 b4 c5 g3+ Kh3 g2 h6 g4+ Kh2 b2 e5 g3+ Kh3 f2 h7 b3 c6 f3 e6 Nh6 e7 Ra4 c7 Na6 Qe2 d1B Be3 Bb7 c8R Nb4 Rc1 Qc8 Qd2 Be4 Bc4 f1Q Be6 f2 Rc5 Na2 Bg4 Qb5 Qd3 f1Q Rc6 Qf3 Nc3 b1R Rb6 b2 Bf2 Qbc6 Qd5 Bb3 Rb8 Rg8 h8B Bh7 Bb6 Rd1 Rb1 Rd2 Rc1 b1Q Bc7 Qbf5 Rh2 Bg7 Qb5 Bd4 Bce5 Bf2 Nd5 Rg7 Nb4 Rg8 Ne2 g1R Nd4 Rf1 Ndc2 g2+ Bg3 g1Q Rg2 Re1 Bb2 Re5 Qa5 Rb5 Ne1 Rb7 Qa7 Qf1 Ra8 Qfa6 Qb8 Qa7 Kh2 Rg7 Bge5 Rg6 Bh3 Rg3 Bg4 Kf7 Nbc2 Ke6 e8Q+ Kd5 Qh5 Kc5 Nb4+ Kb5 Qd6 Q8c7 Re8 Qc8 Qb8 Qf7 Be6 Q7f5 Bc4+ Kb6 Be2 Ka5 Bd1 Kb6 Nd5+ Ka6 Nb4+
R2b4/3pn1K1/nP1R1RN1/n1k1rrr1/b2Bn1B1/1q5q/1N2r2q/1rQ1B1Q1 b - - 0 1 illegal: No possible last move
b2b2n1/2P1RRK1/1b3Rp1/2bN2n1/nq4B1/QrBQ3N/k2Bnq1b/rr6 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Ke6 c4 d5 f4 b5 h4 g6 h5 g3 c5 d3+ Ke3 d2 Kd4 g2 h6 e3 a5 e2 a6 e1B h7 b3 c6 b4 c7 b2 a7 b3 Qh5 d1N Ba6 Ba5 Nh3 g1B+ Be3 Bh2 Qg5 Nf2 Qg1 Nd7 Qc1 Nb6 Bc4 Bb7 Ra4 Ne4 Rd1 Ng5 Rb4 Na4 Qd2 Bb6+ Kd3 Qc8 Na3 b1R Ng1 b2 f5+ Ke5 f6 d4 Ba6 Kd5 f7 e5 Nc2 Bfc5 Rf1 Qf8 Qc1 Bc6 Rf6 e4+ Ke2 Rb8 Bd2 e3 Kd3 e2 a8Q e1B Nh3 Bh4 Bc8 Ra1 Qa7 b1Q Qa6 Ba8 Bg4 Qb2 Rb3 Qe7 f8R Qe1 Bc8 Qf2 R8f7 Qa3 Bg4 Qb4 Na3 Rb7 Nb5 Rb8 Kc2 Kc4 Re3 Rb1 Ree7 Rb3 Qa7 Rb1 Nc3 Ra1 Nd5 d3+ Kd1+ Kb3 Qa6 Ka2 Qb5 Nh6 Qd7 Rhd8 h8B Ng8 Qd6 Rb7 Qg3 Rdb8 Bg7 Qff4 Ke1 Qfd4 Kf1 Qf4+ Kg2 Qf2+ Kh1 Qfd4 Kg2 Ba7 Rf2 Qbc4 Re8 Nf3 Bf4+ d2 Re4 Bd8 Ree7 Ng5 Qd3 Qb3 Rf3 d1N Bd2 Ndc3 Be5 Bg1 Kg3 Qf2+ Kf4 Qb1 Bd4 Ne2+ Ke5 Bh2+ R3f4 Rb2 B4c3 R8b4 Be1 Bab6 Bed2 Nh6 Kf6 Ng8+ Kg7 Rb5 Qf5 Qe4 Rf3 Rbb1 Rf4 Qc4 Qd3 R5b3 R4f6 Qb4 Qa3+
q1Nbr1n1/RQp4B/5Nkb/BK1RQ1Nr/4rnP1/b2Q1b1r/q2b4/1n6 b - - 0 1 illegal: No possible last move
3QqNB1/1Np3r1/3RPn1K/3Q1qR1/r1bBbBk1/q6R/q3rbn1/3bb3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Ke6 Kg4 b5 Kh5 Kf5 a4 c3 d4 b3 g3 b2 a5 b4 e3 b3 d5 h3 a6 h2 d6 c2 a7 f3 d7 f2 Ra5+ Bc5 Ra3 Nf6+ Kh6 Nh5 Be2 f1Q Qd2 Qf3 e4+ Kg4 e5 f5 Qc3 f4 Qd4 Rg8 Bd3 Qe8 d8B Rg7 Bg5 Nd7 Ra4 Ndf6 Qc4 Bf2 Na3 b1Q Nb5 b2 Be3 c1B Ra6 Bd2 Nd6 Qa2 Qd5 b1Q Ne2 Bde1 Bc4 Qf5 Bd4 Qfa3 Nb7 f3 Rd6 Nf4 Bb3 Ng2 Nf4 Bd7 Ne6 Ba4 Bc4 Bd1 Bf4 Ne4 Nf8 Nf6 Rf1 h1B Bb3 Rb8 a8R Rc8 Ra5 Ra8 Rb5 Ra4 Ra5 Be3 Rg1 f2 Bc4 f1B Rb5 Kh3 g4 B3f2 g5 Kg4 g6 Bfe2 Bb3 Bc4 Rf1 Ne3 Ra5 Be4 Rh1 Ng2 Rc5 Re7 Rh3 Re6 Kg7 h5 Kh6 h4 g7 Re7 g8Q+ Rg7 Rf3 h3 Qh8 h2 Rh3 h1R Ra5 Rg8 Rb5 Nd7 Qf6 Rg7 Qd8 Nf6 Nc5 Ba5 Q5a8 Be6 Qc6 Re1 Nb7 Re2 Bd5 Bae1 Ra5 Bd7 Bg8 Be6 Rb5 Beb3 e6 Bc4 Ra5 Qfc5 Rb5 Qa7 Rbh5 Q7c5 Qb5 Qe5 Qd5 Qf5 Rg5+
R4R2/kpQ1bK2/3b2n1/n1n1rBbP/b2q4/Qrqq2N1/N1n2R2/1Q1n2B1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 d5 h4 Kd7 e4 Kc7 c4 Kb6 e5 f5 c5+ Ka7 h5 b3 c6 f3 Kg3 b2 c7 d3 a5 f4+ Kf2 g3+ Ke1 g4 Kd2 g2 Kc3 d4+ Kc4 g3 e6 f2 a6 f3 e7 d2 e8R d3 Re3 Bd7 Kd5 Qc8 Ke5 Ne7 Kf6 Ba4 Rh4 Nd7+ Ke6 Ng6 Nh3 g1B Re2 g2 Rg4 Bd6 Qb3 d1Q Rge4 d2 Qb4 Nc5+ Kf7 Re8 Nf4 Re5 Nc3 b1N R4e3 Na3 Nb1 Nc4 Nc3 Na5 Qb1 Bh2 Na2 g1B Rd3 Be7 Bh3 f1N Rf2 Ne3 Bf5 Nc2 Ne2 Bf4 Rd6 Bgh2 Rd8 Bfg5 Ng3 Qg1 Rf8 d1N Nh1 Qg4 Be3 Qb4 Ng3 Qd4 Bd3 Qh3 Bf5 Rd8 c8Q Rd6 Qb3 Rb6 Qb1 Rb2 Qc7 Rb3 Re2 f2 Rd2 f1Q Bg1 Qb2 Rf2 Qd3 Qd7 Kb6 a7 Qbd4 a8Q Q3c3 Qdc8 Qf1 Qd7 Qfd3 Qd6+ Bc6 Qad8+ Ka7 Q6c7 Ba4 Qdd6 Na6 Qb4 Nc5 Qa3 Re3 Nh1 Bhd6 Ng3 Re5 Qbc1 Bd7 Qab2 Ka6 Qcb1 Nc4 Nc1+ Kb5 Qb8 Kb6 Ra8 Na5 Na2 Ba4 Qc8 Nd7 Qa3 Nc5 Rb8 Ka6 Qc7 Ka7 Ra8#
r4Nn1/1p1rq3/QP3B1k/3Rb2q/r1n4q/B2R1B2/b4bNq/b1K1Qb1N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 b5 cxd4 Qd2 e5 Qc3 exf4 Qb4 axb4 Kd2 d5 a4 g5 h4 f5 e4 Kf7 c4 Kg7 c5 d3 b6 d4 c6 b3 a5 b2 h5 g3 a6 g4 e5 g2 c7 f3 a7 g3 e6 f4 e7 f2 e8N+ Kh6 Ra6 f3 Rh2 Bg7 Nd6 Qh4 Kd1+ d2 Na3 b1Q Nab5 Qh7 Bc4 f1B Ra3 f2 Ne4 Be5 Rd3 Q7e7 Ba3 Nd7 Ne2 g1B Nf4 g2 Ng3 Rh7 Kc2 d1R Bd5 Ra1 Nh1 Rf7 Rhh3 Rg7 Rd1 d3+ Kd2 Bh2 Bf3 g1B Ng2 Bd4 Rg3 Ne5 Rh3 Be6 c8Q Bf7 Qe8 Ba2 Nc7 Rh7 Ne6 Bc3+ Ke3 d2 Nf8 Rf7 Qa4 Rg7 Qa6 Rh7 Qe2 Nc4+ Kd3 Bd4 Kc2 Bhe5 Rg3 Qh2 Qe1 Qeh4 Rg5 Rd7 Rg3 Be2 Rg5 f1Q Rf5 Bgf2 Rg5 Bh8 Rd5 Bde5 Rd3 Qfg1 Rd5 Bf1 Rd3 Rad8 a8Q Rc8 Qa5 Ra8 Qa6 Qe7 Rd5 Qhh4 Rd3 Qgh2 Rd5 Kg5 h6 Bf6 h7 Kh6 h8B Bg7 Rb1 Bgf6 Rbb5 Bg7 Rd4 d1Q+ Kc3 Qb1 Bb4 Bf4 Bd5 Qg6 Bf3 Bb1 Rd5 Ra4 Ba3 Qgh5 Kb3 B4g3 Rd3 Ba1 Bf6 Ba2+ Kc2 Bge5 Kc1
R1b2q2/QN1bR2N/n4bkn/2Q2Rr1/2P3n1/n1Bp3r/2b1BBn1/1n1n2K1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 c4 g5 a4 f5 e4 Kf7 h4 d5 h5 d3 e5 d2 a5 g3+ Kg2 d4 a6 f3+ Kh3 b3 h6 b2 a7 f4+ e6+ Kg6 h7 g2 Kh2 f2 e7 g4 e8R f3 Re2 b4 Qe1 d1N Bd2 b3 Ra2 Nh6 Re3 Na6 Ra4 Be7 Rb4 Qf8 Re2 Bf6 Re6 g3+ Kh3 d3 Nc3 b1N Na4 b2 Bg5 Na3 Bc1 b1B Qe3 Bc2 Be2 f1N Rb5 f2 Qc5 Nfe3 Nf3 f1B Ng5 Neg4 Re7 Bd7 Be3 g1N+ Kh4 g2 Kg3 Rg8 h8B Nh3 Nh7 g1N Bf2 Nf4 Ra5 Ng2 Rh5 Re8 a8Q Nf3 Rf5 Nd2 Qaa7 Ndb1 Bg7 Rh8 Kh3 Rb8 Kg3 Rb5 Kh3 N4e3 Kh2 Neg4+ Kg1 Bc8 Qcb6 Rd5 Nc5 Re5 Nb7 Rb5 Rc5 Bd7 Rc8 Rg5 Ra8 Bc8 Rf5 Bd7 Bf3 Be2 Qc5 Bc8 Bd5 Bf3 Be6 Bc6 Bd5 B6a4 Bf3 Bad7 Be2 Ng8 Re4 Bd8 Nf6 Rh3 Nh7 N8h6 Bc3 Bf6 Re7
3nb2n/B4Qn1/2r5/3PnRkb/Nb1RQnq1/p1Qn3B/2N1B1rb/n4K2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 b4 Ke7 e4 Kf6 g4 a5 d4 h5 d5 c5 e5+ Kg5 b5 f5 e6 h3 e7 h4 e8Q c3 b6 c4 b7 h2 Ne2 c2 Bb2 c1B Na3 h3 Qc6 f3 Qb6 f4 Qf2 c3 Nb5 c2 Nbd4 a3 Qd3 a2 Bg2 a4 Qde3 a3 Qc3 Qd7 Nb5 Rh6 Qb6 f2+ Kf1 Ne7 Ng3 Rc6 Nf5 Ng6 Nc7 Nh8 Ne3 Bb4 Rb1 a1N Rg1 h1B Nf5 h2 Be4 Bf3 Qb5 h1N Qb6 Bd1 Qa7 Ng3+ Kg2 f1N Ne3 Qg7 Nb5 Nh2 Bf3 Nh5 Rf1 Bd7 Be2 Nf3 Qad4 Bd2 Qe4 c1N Nc2 Be8 Rf2 Be3 Kf1 Nd3 Bc1 Bd4 Be3 Be5 Ba7 Bc7 Rc1 Nfe5 Rb1 f3 Rb2 Bbd6 Rb4 Nhf4 Rc4 Bb4 Rd4 Nbd7 b8Q Nef7 Qb6 Nd7e5 Qb7 Bb8 Qd7 Nd8 Qf7 Qg6 Qc4 B8d6 Nc3 Rac8 Na4 Qh5 Rg2 f2 Qc3 Bb8 Rg3 Rg6 Re3 Rcc6 Rf3 Kh6 Qe3 Nc4 Qe5 Ng2 Rf6 Qg5 Qe4 Bh2 Bf3 Qh5 Bb8 Ngf4 Ba7 Ne2 Kg2 f1N Bc5 Nfg3 Ba7 Nf5 Kf1 Ng7 g5+ Kh7 Bg4 Nef4 Bh3 Bf3 Bg4 Bh1 Bf3 Nce5 Be2 Bf3 Qe6 Nf5 Qf7+ Rg7 g6+ Kh6 Qe1 Qg5 Qd2 Bh5 Qc3 Rh7 g7+ Qg6 g8B Rg7 Bh7 Rg8 Rd6 Qe6 Bg6 Rg7 Bh7 Rg2 Bg6 Qd7 Rf6 Ng7 Bf5+ Kg5 Bh3 Qg4 Rf5+
4nQ2/1n6/b1R5/1R4R1/K1npnb2/bBPk1b2/1rqN3Q/n1bbBrNB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 h4 Ke6 e4 Ke5 a4 f5 c3 b5 Kc2 g5 Kb3 d5 a5 g3 a6 d3 a7 g4 h5 g2 h6 f3 h7 f2 Qd2 g3 Ra2 f4 Qe1 f3 Ra6 d2 Rh4 d1B+ Kb2 b3 Rf6 b4 Rc6 Nd7 Rf4 Nc5 Rff6 Nb7 Rf4 Bg4 Ba6 f1N Be3 f2 Rff6 Nd2 Rc7 f1B Bb6 Rb8 a8Q Bgf3 Rf4 Nf6 Be2 Ne8 Ba7 Nc4+ Ka1 b2+ Ka2 d4 Nh3 g1B Rf6 g2 Rfc6 Qd6 Rc8 Qg6 Qf2 Bh2 Ng1 Bf4 Nd2 b1N Bd3 Rg8 h8R Nba3 Bc2 Bc5 Kb3 Rf8 Ka4 b3 Rd8 b2 Rg8 b1N Bb3 Nc2 Qe2 Qf5 Rg5 Ba3 Bb6 Na1 Bc7+ Ncd6 Qf2 Ba6 Qh4 Rf6 Qh2 Rf7 Rd7 Rf8 Bd8 Nc4 Rdg7 Rf7 Rh5 Rf8 Bh4 Rf7 Rgg5 Rf8 Ne2 g1B Be1 Be3 Ng1 Rf7 Nf1 Bec1 Nd2 Bg3 Rg4 Rf8 Rgg5 Kf4 e5 Ke3 e6 Qc2 e7 Bf4 Rb5 Kd3 Rhg5 Nf6 Nf1 Nbd2 e8B Nde4 Bd7 Ne8 Nd2 Rd8 Be6 Rd6 Bd5 Rh6 Qg3 Rh2 Qb8 Rf2 Qh2 Rf1 Qd6 Rg8 Qf8 Rh8 Qg2 Rh2 Qh1 Rg2 Qh2 Bh5 Qf5 Qb1 Qf6 Ne4d6 Bf3 Ne4 Qf8 Re2 Bg2 Bf3 Bh1 Qa2 Nb1 Rc2 Nd2 Qb1 Rcb6 Rb2 Rbg6 Qc2 Rc6
r2Nb2b/Np1QR3/1n1b2R1/nPn1NK1b/3k2B1/n6B/1b4Qn/1Rq1n1r1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 b5 cxd4 Be3 e5 Bd2 exf4 Bb4 axb4 Kf2 Ke7 e4 Ke6 c4 Ke5 h4 d5 a4 f5 h5 g5 c5 f3 Kg3 f4+ Kh2 d3 a5 d4 h6 b3 a6 f2 a7 f3 Kg3 b2 h7 d2 c6 d3 c7 Nf6 Qc1 d1N Qd2 Ne3 Rh4 Bd7 c8R Rg8 h8N Bd6 Rc2 Na6 Rc3 Qc7 Rh3 Nc4 Rc1 Na5 Rc4 Nd5 Rh7 Be8 Rc6 Kd4+ e5 Nb6 Qd1 d2 Bh3 f1N+ Kf2 Nc5 e6 Nh2 Nc3 b1N e7 Na3 Rb1 Qc8 Qe2 d1B Na2 Qc7 Nf7 g3+ Ke1 g2 Kf2 g4 Nb4 Rg7 Nd8 Rg6 Qe6 Rg5 Qd7 g3+ Ke1 f2+ Kd2 Bdh5 Nf3+ Ke4 Rg7 g1B Ne5 g2 Rg6 Qc8 Rc7 f1N+ Kc3 Nd2 Nbc6 Ndf3 Bg4 Rb8 a8Q Ne1 Na7 Bd4+ Kd2 g1B Bh3 Bf7 e8B Bb2 Bg4 Bgd4 Ke2 Bdc3 Kf2 Bd2 Kg3 Bdc3 Kh4 Bd4 Kg3 Kd5 Kf4 Bdc3 Bh3 Rg1 Kf5 Kd4 Bg4 Bd5 Bf7 Ba2 Bg8 Bf7 Bh3 Be8 Bc4 Bd2 Be2 Bg5 Beg4 Bf6 Qe6 Bh8 Re7 Qc7 Qd7 Rc8 Qb8 Qc6 Qbc7 Ra8 Qb8 Ne6 Qbc8 Qc1 Qc2 Nc5 Qg2
2NN1B1K/2b2r2/1n2R2n/3B3k/b1qBnP1b/b1pq1r2/3QRQ2/q1n3rQ b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 b5 a4 c5 f4 h3 d4 h4 g4 e3 a5 b3 a6 c3 a7 c2 d5 b4 d6 b2 g5 c4 d7 h2 Nh3 b3 Qe1 e2 Nc3 b1R Ra3 b2 Nd1 Nh6 Ra2 Qc7+ Ke6 Rh7 Rg1 h1N Ra5 Ng3 Be3 c1N Rh1 Rf7 Qf2 e1B Nc3 Ne4 Ra6 Kh5 Nb5 Ba5 g6 c3 g7 Qc4+ Ke5 Bc7+ Nd6 e6 d8B Bd7 g8Q Ba4 Ng5 h3 Bd4 h2 Rg1 h1Q Bg2 Ra1 Rb6 b1Q Re1 Qbd3 Be7 Ra2 Ra6 Re2 Rc6 Re3 Re2 Rf3 Qh8 Nb3 Rb6 Qa1 Qf6 Nc1 Bh1 Rg7 Nf7 Rg1 Nd8 Na6 Qe1 Nb4 Qd2 Nd5 Bg2 Rb8 a8Q Rb7 Rc6 Nb6 Qh4+ Kg6 Qf2 Kh5 Qfe3 Ng3 Kf6 e5 Qf2 e4 Nc8 e3 Bd6 Be7+ Kg7 Ne4 Kh8 Bf8 B6e5 Ba3 Re6 Ra7 Bg7 Rb7 Re1 e2 Bf8 Ra7 Rd1 e1B Bh1 Na2 Rc1 Rb7 Rc2 Nc1 Nd6 Ng3 Re4 Re3 Re6 Qg6 Qg2 Bb8 Qd3 Rf7 Re2 Bc7 Qd2 Qgd3 Qab7 Ngf5 Qf1 Bh4 Nc8 Nd6 Qf2 Rh3 Qbg2 Re3 Qh3 Reg3 Bd5 Ne4 Qhh2 Rf3 Qh1
bNb1b1N1/1q2R1n1/R3n1k1/1rB1Qr2/K1p1r3/2RP1n1r/BQ1q2q1/1Q4b1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 f5 g4 Kf7 e4 c5 g5 b5 e5 h5 a5 c3 d3 h3 a6 h4 e6+ Kg6 e7 c2 Kd2 f3 e8R c4 a7 f4 Ra6+ Qb6 Re3 f2 Rf3 h2 Ba3 c1Q+ Ke2 h3 Qe1 b3 Nc3 b4 Nb5 b2 Qd2 b1N Qe1 b3 Bb4 b2 Bc5 Nd7 Re3 Ne7 Nc7 Nf5 Nd5 Ng7 Nf3 Nd2 Nf6 b1R Re7 Rb5 Nd4 Qb7 Nc6 Nf3 Nb8 Rh5 Bg2 f1R Qd2 Qc3 Qb2 Qa5 Rg1 h1B Qe5 h2 Ng8+ Kh7 Qb2 Rh3 Qe5 Rf2+ Kd1 Re2 Kc1 Re4 Kc2 Qa2+ Kc3 Qf2 Rc1 Qa2 Bf2 Nc5 Rc2 Ne6 Bc5 Kg6 Rc1 Ng1 Bf3 Qe2 Bg4 f3 Rc2 f2 Bf3 Qf1 Bd1 Qg2 Rc1 f1B Bb3 Nf3 Ba2 Be2 Rc2 Bd1 Rc1 Ba4 Rc2 Rb6 Rc1 Bb5 Kb4 Qd2+ Rc3 Be8+ Ka3 Rb5 Ka4 Kh5 Bf2 Bg2 Bc5 h1Q g6+ Nf5 g7 Kg6 Nf6 Qg1 g8Q+ Nfg7 Qh8 Bh1 Rf7 Qgg2 Ng8 Bd6 Re7 Bc7 Qd5 Bh2 Qe5 Bg1 Nc6 Rb8 a8Q Qc7 Qa7 R8b6 Nb8 Qb7 Qa8 Rd6 Qa7 Rd8 Qb6 Rd5 Qed6 Rf5 Qd4 Nh5 Qhe5 Ng7 Qf2 Re1 Qf1 Re4 Qb1 Rb2+ Nd7 Qgf2 Qd8 Qa8 Qa1 Nd4 Qe1 Reh4 Qc1 Rb5 Qb1 Bhb7 Ra3 Re4 Nb8 Qg2 Qd7 Nf3 Qdd4 Qa7 Qda1 Ba8 Qab2 Qb7 Rc3
q4b1B/1Bn1Rr2/2qN1n2/Q1RR2qn/1pb3k1/2rr1qB1/2PQ1b2/3nNK2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 a4 Kf6 h4 d5 a5 b5 e5+ Kf5 h5 g5 h6 f3 a6 f2+ Ke2 g3 h7 g4 e6 b3 a7 g2 e7 b4 e8R g3 Bg5 b2 Re5+ Kg4 Bd2 f5 Re7 f4 Re3 f3+ Kd3 Nf6 Re7 Be6 Be3 Na6 Na3 b1Q Rh6 Rc8 a8Q Nc7 Be2 f1R Nh3 g1Q Ng5 g2 Kd2 d3 Qb8 d4 Nf7 Bc4 Qe1 Qd6 Nd8 Qa2 Bf2 Qc6 Nb5 Qaa8 Bg3 Rf2 Kd1 d2 Qb6 Rf1 Bd3 f2 Ke2 d1N Nb7 Rg8 h8B Rg5 Ra2 Rd5 Ra5 Rd6 Kd2 Rdd8 Be4 d3 Nd4 Rd6 Rc5 Rd7 Kc1 d2+ Kb1 Rd5 Nf3 Rd3 Rh3 Qh2 Qa5 g1B Rh6 Qh5 Nd6 Qg5 Qe2 Re1 Rh3 f1N Rh5 Bf2 Qe3 Re2 Qd4 Ree3 Ne1 Rc3 Rd5 Red3 Qe3 Rd8 Rc5 Rd7 Bg2 Qa4 Bb7 Qc6 Rd5 Nb2 Rc5 d1Q+ Qc1 Qe2 Qd2 Qef3 Kc1 Nd1 Rd5 Nfe3 Rc5 Ng2 Rd5 Nf4 Rc5 Qg7 Rhd5 N4h5 Qe2 Re3 Kd2 Qg5 Qd3 Qff4 Qd4 Red3+ Ke2 Qe4+ Kf1 Qef4 Ree5 Rf7 Re7 Qe4 Qe3 Qf3 Qd2
2b5/1q1N3B/1r1bn2R/n3pk1K/BN1rb2B/Q2n2q1/1rb2P2/1RQ2Qnq b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 b5 g4 h5 c5 d5 c6 d3+ Ke3 h3 Kf4 h2 Kg5 h4 a5 e3 c7 b3 a6 b2 a7 b4 Qd2 d4 Be2 h3 Ra2 b3 Qa5 d2 Qb6+ Qd6 Qb5 d1B Qa6 d3 Ra3 d2 Ra4 Nd7 Bd3 e2 Bg6 e1N Bh7 Nc5 Bd3 Rb8 a8Q Rh6 Bc2 Ned3 Na3 b1Q Qf3 b2 Qab7 Qg3 Qb5 Rh4 Rd4 Rb6 Ba4 Bc2 Rb4 d1N Qa8 Nc3 Nf3 Ne2 Ne5 Ng1 Nd7 Qf3 Kg6 Qg3 g5 Rd4 Kh5 Kf5 g6 e5 g7 Bd6 Bg5 Ne7 g8B Nc6 Bh4 Ne6 Qba6 Na5 Q8a7 Ne1 Qf1 Nd3 Qa6 Qa1 Rb5 b1R Rb3 Qb2 Rb4 Bb7 c8Q Qb3 Qc3 Rb2 Qd2 Bc8 Qdc1 Qd5 Rb5 Qb7 Qa8 Ra2 Rb1 Rab2 Nb5 Nf3 Nc7 Ng1 Na6 Nf3 Rg1 h1B Nb4 h2 Rg2 Ng1 Qa7 Qf4 Rg6 Qg3 Rh6 Be4 Qa8 h1Q Qa7 Rb5 Qc5 Rb6 Qc3 Qhh3 Qa3 Qh1 Bh7+
4bQ1R/1B1r1N2/b1qq1PK1/R2r2nn/2n4N/Nr2pr1R/1Q1B1b1q/4k1n1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 Kg4 c5 Kg3 a5 b5 f5 h5 c6 e5 c7 d5 a6 e3 Kd3 Kf2 g4 e2 a7 e1N+ Kd2 e4 g5 d3 g6 h3 g7 h2 Ra2 h4 Ra5 h3 Qa4 d4 Nf3 b3 Ne5 b4 Nc3 b2 Rd5 b1R Nd7 b3 Nb6 b2 Rc5 Nf6 g8Q Ba6 c8N Qd6 Nd7 Nf3+ Kd1 d2 Kc2 d1N Qab3 Ke1 Qb5 d3+ Kb3 d2 Kc2 Ng5 Qd3 Nh5 f6 Nc6 Ra5 Nf2 Rb5 d1R Rd5 Na5 Ne7 Rd8 a8R Nc4 Ne5 Rd7 Ra5 e3 Qdh7 Rd5 N7g6 Be7 Qgf7 Rb8 Nh4 Rb3 Rh8 Bd8 Ra1 Ba5 Qf8 Bc7 Ra5 Ra1 Rg1 h1Q Rg3 h2 Bg2 Nfh3 Nb5 Ng1 Nf7 Ra4 Be4 Qf3 Qhg7 h1Q Rh3 Qff4 Na3 Qfh2+ Bg2 Rab4 Qb8 Rbb5 Qb6 Rf5 Qb8 Rbd5 Qgf8 Rf3 Qb7 Rbb5 Kc3 b1B Qb6 Bc2 Qd4 Ba4 Kd3 Ne6 Ke4 Rb3 Rb5 Ba5 Qb2 Bc3 Ra5 Be5 Qg7 Bg3 Qf8 Bf2 Ne5 Rg3 Kf5 Rf3+ Kg6 Ng5 Nf7 Rdb7 Bf1 Be8 Bd3 Rd7 Be4 Rd4 Bb7 Rd5 Qa2 Qc6 Qc2 Qhd6 Qb2 Qhh2 Bd2+
2rNk2K/4bB2/1P5n/2b1Q1nr/3Q3q/n3BBRb/q2r1p1r/b3RNqR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 d5 Kf3 h5 g4 f5 c4 a5 e4 h3 b4 a3 e5 h4 b5 h2 c5 h3 g5 a4 g6 a2 e6 a3 c6 d3 b6 d4 g7 d2 e7 d3 c7 Nd7 Qe2 d1N Be3 d2 Qd3 Nf2 Bd4 d1R Qe4 Nh6 g8B Ne5+ Ke2 f3+ Ke3 Rd2 Kf4 Qd5 Kg5 f4 Kf6 Nc4 Qe1 Ne4+ Kg6 f2 Bg7 f3 Ne2 Ng5 Bg2 f1Q Bd4 f2 Qd1 Qg1 Be3 Bf5+ Kf6 Rc8 Nd4 Bg4 Bf3 Qa8 Nc3 Qd5 Rc1 a1B Nce2 a2 Ng3 Na3 Nf1 Bc3 Be6 Bb4 Nc6 Bc5 Nd8 a1B+ Kg6 Qa2 Bf7+ Kd7 e8R Bfe7 Rg8 Rh7 Qe2 Be6 Re1 Bg4 B7d5 Be6 Rg7 Ke8 Qc4 Bd7 Bf7+ Kf8 Rb1 Ra8 Re1 Ne6+ Bg5 Ng4 Qd4 Rh5 Be3 Nh6+ Kh7 Rb8 Rg3 Ng5+ Kh8 Ra8 Bg8 Ke8 Bb3 Qg2 Rg1 h1R Rb1 h2 Be6 Qh3 Re1 Qh4 Bed5 Bh3 Bg8 Bcd6 Qe5 Bb4 c8Q Bd6 Qa6 Bc5 Qc4 Rc8 R1g2 Rg1 Be6 h1Q Rh2 Rg2 Qcd4 Qg1 Rh1 Rh2 Bf7+
1nkR3N/q2RQNb1/Pr1n4/Bb1q1QRb/2n5/1B2q2p/r3rb1K/2n2N2 b - - 0 1 illegal: No possible last move
QR1NnnK1/1N4BP/R3Q1b1/qnqQ3r/3qr3/1b3B2/2p2rk1/3nB1bq b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kd6 d4 Kd5 a4 Ke4 e3 b5 h5 c5 a5 f5 a6 g5 a7 b3 h6 b2 d5 c3 d6 c4 d7 b4 Na3 b1B Qe2 g3+ Kg2 c2 Kh3 c3 Qh5 b3 Qe2 g2 Bb2 c1Q Nf3 g1Q Qa6 Qa5 d8B g4+ Kh4 g3 Kg5 g2 Kg6 Be6 Nb5 Nf6 Rh5 Qh1 Ba3 g1Q+ Bg2 b2 Rh2 Bb3 Bc5 Nbd7 Rh5 Ne8 Bd4 Bc5 Ne5+ f3 Qb6 f4 Qe6 Nf8+ Kf7 B1c2 Bg5 b1N Bh4 Na3 Be1 Rd8 a8Q+ Rd5 Nc7 Nb5 Nc6+ Re5 Na6 Bd3 Rh2 c2 Qc4 Qb2 h7 Rh5 Bg7+ Qd4 Rh3 Rg8 Rb1 Ba7 Rg3 Bb6 Rg6 Ba7 Bh3 f2 Nc5+ Kf3 e4 f1R e5 Rf2 Bg4+ Kg2 Nb7 f3 Qd5 Bf5 Rd6 Bb6 e6 Bg6+ Ke7 Qc5 Ncd8 Rh8 Bb4 Qd1 Be1 Qdd4 Rb2 Re2 Rb1 Re4 Rb2 f2 Bf3+ Kh3 Rb1 f1N Rb2 Ne3 Rb1 Bf5 Kf7 Nd1 e7 Ba7 Ra6 Rg8 Bh8 Rg2 Bg7 Rf2 Kg8 Bg6 Rb2 Bb8 Rb1 Bh2 Rb2 Bg1 Rb1 Nec7 e8Q Kg3 Qd7 Ne8 Q7e6 Na3 Qec8 Bc4 Nd6 Ba2 Rb5 Bb3 Rb8 Nb5 N6b7 Kh2 Qce6 Kg3 Be2 Kg2 Bf3+
1BN3r1/QK1nbb1P/1nR1R2Q/2rb3r/qqb2p2/1n4N1/2QqB2k/1qR5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 d2 h6 g3+ Kf3 d4 c5 b3 c6 g2 c7 g4+ Ke2 b2 Kd3 g3 Ra5 f3 Na3 Kf4 e5 b1N e6 b4 Kc4 f2 Kb5 b3 Kb6 d3 e7 b2 e8Q Be7 Qc2 Bb7 Rc5 Bd5 Nf3 g1Q Qc3 g2 Rh2 Kg3 Nd4 d1B Ne6 f4 Ng5 Nd7+ Ka6 Bh5 c8R Nb6 Qc6 Nd2 Qd6 b1Q Qc2 Nf6 Nc4 Qb4 R5c6 Nfd7 Ba3 Bhf7 Kb7 Nb3 Be2 f1B h7 d2 Qdg6 d1Q Qh6 Rg8 Nd6 Qdd4 Rc7 Rc8 a8Q Qa4 Qb8 Qdb4 Qa7 Qh1 Rh4 g1R Nge4+ Kg2 Bb2 Rg5 Be5 Rh5 Rg4+ Kh2 Rg6 Rg4 Re6 Rg8 Ng3 Qhe4 Qc5 Qb1 Qc2 Ra8 Qb8 Ra5 Qa7 Rc5 Nc8 Bc4 Rcd6 Bg2+ Rcc6 Bh1 Rd1 Bhd5 Rc1 Qf8 Bc3 Qg7 Bb2 Qgc3 Ba1 Qe3 Be5 Qed2 Bb8
2n2rbR/B1Q1kpb1/b1qr2B1/RN4r1/2q1n3/n1NP4/2r5/BqQ2bQK b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 Kg2 c5 h4 b5 e4 c3 a4 c4 a5 f3+ Kh2 c2 a6 b3 e5 b4 a7 b2 h5 b3 e6 c3 e7 f2 h6 g3+ Kg2 g4 h7 Nf6 Nf3 Nc6 Ra3 Ba6 Nh2 Ne4 Qf3 Qd7 Ra5 Bg7 Bd3 f1B+ Kg1 g2 Qf4 Rf8 h8B Rd8 a8Q Na7 Rc5 Qc6 Nf3 Nc8 Rch5 Rd6 Kh2 g1R Qb7 Rg3 Na3 b1B Nd4 b2 Ra5 Rg1 Ne2 Rg3 Rg1 Rg2+ Kh1 g3 Qh6 Rf2 Nb5 g2+ Kh2 Rf5 Rh1 Rg5 Qb6 g1R Qc7 Rc5 Qf4 Rgg5 Qg4 Ba2 Qg2 b1N Qg1 Na3 Bb2 c1Q Ba1 c2 Nec3 Bd4 Be5 Bb1 Bg3 Bf6 Bf2 Bg7 Be3 Qe1 Bd4 Rc4 Ba7 c1Q Bc2 Nc5 Bg6 Ne4 Qb8 Kd7 Qc7+ Ke6 e8Q+ Kf6 Qed8+ Ke6 Na4 Rc2 Nac3 Qc4 Qcc5 Qed1 Qdb6 Ke7 Qce3 Qf3 Qe1 Qb2 Qc1 Qf6 Qc6 Qfe6 Qcb6 Qc6 Qb8 Qec4 Qc7+ Ke8 Qf2 Ng3 Ne4 Rc3 Bf5 Bbd3 Qc5 Rc2 Nec3 Qb1 Kg1 Be4 Rh8 Bed3 Bh7 Bf5 d3 Ne4+ Kh1 Bg6 Qb8 Ke7 Qd4 Bh5 Bf5 Bg6 Qg1 Bh7 Bg6 Bg8 Qc7+
n2QQR2/K1bq1p1P/2N1Bq2/2RrR3/1q2BBr1/b2n4/knb5/n1rN3r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 d5 c4 g5 h5 b5 a5 d3 a6 b3 e5 Kb4 a7 f3 Ke3 d2 Kd4 g3 e6 f2 c5 g4 c6 b2 e7 g2 e8B g3 c7 Qf6+ Kd3 d4 h6 Na6 Qe2 Kb3 Qf3 d1Q+ Bd2 b4 Qh5 Ne7 Ne2 g1B Qc5 g2 Ra4 Nc6 Nec3 Ne5+ Ke4 d3 Kd5 Bh2 Ra1 g1R Qe7 Bf5 c8R Rg4 Be2 f1N Rg1 Nc7+ Kc5 Ne3 Bd7 Nc2 Ra5 Na1 Re8 Rd8 Nd5 Na8 Bf4 d2 Be6 Bc2 Nbc3 b1R Bd3 Rc1 Be4 Nd3+ Kc6 Kb2 Kb7 b3 Nb4 Rd5 Qd8 Bd6 Nc6 Ba3 Rf8 Bg3 Na4+ Ka2 Re1 b2 Rc5 b1Q+ Ka6 Qb4 Nb2 Qe2 Qe8 d1N Qd8 Qed2 h7 Rhg8 Re2 R8g5 Qe8 Rh5 Re3 Rh1 Re1 N1f2 Nd1 Nb2 Re3 Nfd3 Re2 Nb6 a8Q Bh2 Qad8 Na8 Ka7 Bg3 Bg5 Bc7 Bf4 Qa4+ Na5 Qd7 Nc6 Qe1 Bg6 Qec3 Re5 Qb4 Be4
4r3/1Qn1PK2/N1N1r1nq/1R2b1Nn/R1qRn3/B6Q/qp1k2b1/r2Bb1q1 b - - 0 1 illegal: No possible last move
3qB1NK/1Rb1P1B1/p2q1r1n/Qq1rn3/n1N1b3/N2B1b2/Q3k1r1/r2b2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 d5 c4 h5 e4+ f3 b5 f5 g3 h3 c5 d3 b6 f4 b7 d4 c6 h4 c7 d2 Qe1 d1Q Ba3 d3 Bd6 a6 Be2 a3 Qb4 h2 Qd2 a2 Qb4 d2 Qb3 h3 Qa4 Nh6 Bb5 f2 Qa5 f1R Be8 f3 Na3 f2 Nf3 Rg8 Rg1 h1B Rb1 a1R Bb4 h2 Bc3 Bd7 c8B Bg2 Rb6 h1B Bb2 Bf5 Bcd7 Be6 Ba4 Bb3 Bd4 Bc2 Ke6 Be7 e5 Nd7 b8Q Bd6 Rb7 Bc7 Qa7 Be4 Bc2 Bh3 Q7b6 B1g2 Qb1 Rc8 Nh4 Bgf3 Qa2 Rg5 Ng2 Rb8 Ra7 Rb5 Rb7 Rd5 Bc3 Qe1 Bd4 d1N Bb2 Rg8 Bd4 Nc3 Ne3+ Kg5+ g4 Kf4 Nec4 Na4 Bb2 Qd1 Bc3 Bhg2 g5 Be2 g6 Kf3 g7 Qd2 Qb5 Bd1 Qa5 Ke2 Bb2 Bgf3 Bc3 Nf5 Kf7 Qf4 e6 Qd6 Kg6 Ne5+ Kh7 Nh6+ Rg6 Rg1 e7 Rf8 g8N f1Q Kh8 Rg2 Rg4 Nc6 Bg7 Ne5 Rg5 Rf6 Rg3 Qf2 Rg6 Qfb6 Rg4 Qb5 Rg5 Rf2 Rg1 Rg2 Bd3+
Qb1R4/n1p1r2r/b2bN2R/q6k/Bn2bqnN/2RPB1qr/4r2N/1K2Q3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 g4 h5 e4 f5 a4 Kf7 d3 Kg6 Kd2 b5 Kc2 h3 g5 h4 e5 f3 a5 c3 a6 f2 a7 f4 e6 h2 e7 h3 e8N f3 Qe2 b3+ Kd1 c2+ Kd2 b4 Nc3 b2 Ng7 b1N+ Ke3 b3 Nd1 b2 Ra3 Ba6 Nf5 Nc6 Ng3 Nc3 Kd2 b1Q Rb3 Qd5 Ba3 Nh6 Nf5 Na2 Qe3 Nab4 Nd6 c1B+ Kc3 Ng4 Qe4+ Kh5 g6 Be3 g7 Re8 a8Q Rh7 g8R Ree7 Ne2 Qa5 Bg2 f1R Nd4 f2 Ne6 Ba7 Ne3 Bb8 Ndf5 Re1 Nh4 f1Q Bc1 Qf4 Nf1 Na7 Be3 Re2 Ra3 Qe1+ Kb3 Nc2 Kb2 Qeg3 Rc3 Nb4+ Kc1 Kh6 Kb1 Kh5 Rg1 h1R Nh2 Ref7 Rgc1 Bd6 Rd8 Re7 Bf3 Rc2 Bd1 Re2 N2f3 h2 Ba4 Rf1 Re1 h1B Nh2 Rf3 Rec1 Qe1 Rc6 Rh3 Rb6 Qeg3 Rc3 Bg2 Rbc6 Bf1 Qh1 Bg2 Qe1 Be4 Nf8 Bc5 Rg6 Bd6 Ne6 Nb5 Rf6 Na7 Rh6+
nbRBNK2/2p2Q1r/2qr4/1Rn1nqbN/3r1b1Q/n2P1b2/3kq3/5BRN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 e4 Kd6 a4 Kc5 h4 Kd4 h5 b5 a5 g5 a6 f5 h6 f3 Kg3 c3 e5 b3 d3 b2 h7 f4+ Kh2 c2 e6 g3+ Kh3 f2 Kg4 b4 Kf5 b3 Kg6 f3 Kf7 g2 a7 g4 e7 g3 e8R Bg4 Qe2 Bd6 Re6 Bf4 Rh2 Nd7 Ra2 Nb6 Ra5 Qd6 Rf5 Rd8 a8Q Nf6 Re7 Nfd7 Qd1 Nc5 Ree5 Qc6 Re3 Rd6 Qe8 Na8 Be2 f1Q Rg5 f2 Nc3 b1N Rh1 b2 Nh3 g1B Qe1 g2 Nd5 Na3 Nf6 b1R Nh5 Bf3 Qd7 Rb7 Re8 Rb4 Rc8 Rc4 Bb2+ Ke3 Bf6 c1B Bd8 Rcd4 Qb4 Qd1 Bf1 Qe2 Kg7 Bd2 Qf7 Bc1 Qbc4 Kd2 Qa4 Re8 h8N Re7 Kf8 Red7 Qf6 Rh7 Qb3 Qe6 Re5 Qf5 Nf7 Bg5 Qc4 Bf4 Qh4 Bg5 Be2 f1Q Nf2 Qe1 Bf1 Qe2 Rh3 Bf4 Nh1 Bge3 Rg3 g1N Rg6 Bg5 Rd5 Bef4 Rg8 Bb2 Rg6 Bc3 Rg7 Ba5 Qb3 Bb6 Rg8 Ba7 Re5 Na6 Rb5 Bb8 Qe6 Nc5 Qe7 Rg6 Qf6 Rgh6 Nd6 Rg6 Qf7 Rgh6 Ne8 Rhd6 Rb4 Bd5 N5g3 Bf6 Rg6 Nf3 Rg8 Ne5 Nh5 Bf3 Rg1 B6g5 Rb5
2NB3Q/pKQ3Q1/1nrbB1R1/r4q2/R4nqN/3Pbb2/R2nnr2/1k1r1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 e3 h5 g5 f5+ Ke5 c5 e4 h3 b3 c3 g6 c4 d3 h2 g7 h4 Qe2 h3 Qe3 f3 Be2 c2 Ra3 f4 Ra2 a3 Rb2 c3 Qd2 a2 Qd1 a1R Be3 c1B Qd2 f2 Qc2 f1Q Bd2 f3 Qd1 f2 Nf3 Bd6+ Kd5 Nd7 Kc6 Ra5 e5 Qh4 e6 Nb6 e7 Bg4 e8Q Ne7+ Kb7 Rf8 g8R Ng6 Na3 Rc8 Bg5 c2 Ra2 Kc3 b4 Nf4 b5 Be3 Rg6 c1N Bd8 Rc6 Nc4 Qg5 Qf7 Qf5 Nh4 Bf3 Qc7 Rf6 Rhg1 h1R R1g4 h2 Qa4 Rf7 Qd1 Qg2 Qg1 f1N Bd1 Nce2 Bb3 Qh3 Qg3 Nd2 Qg2 Na8 Nb6 Rd1 Be6 h1Q Nc8 Qf1 b6 Qg3 Kb8 Qh3 b7 Nb6 Qg1 Nh5 Rga4 Nhf4 Qg5 Qhg4 Qe7 Rf8 Qg7+ Rf6 R2a3+ Kb2 Ra1 Nbc4 R1a2+ Kb1 Ka8 Rf8 b8Q+ Nb6+ Kb7 Rh8 Ng2 Rh2 Nh4 Rg2 Qh8 Rh2 Qcg7 Rf2 Qbc7
NQ2b1r1/2b4Q/n2q3N/2R1N3/2rR1R1k/rb1P1br1/nK2B1np/B1r2r2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Ke7 g4 Kf6 e4 Kg5 e5 b5 d3 c5 Kd2 h5 Kc2 f5 a5 c3 a6 c4 e6 h3 e7 h2 e8Q h4 a7 h3 Ra2 Bd7 Qde2 b3+ Kd1 b2 Kc2 b4 Q2e3 b3+ Kd1 c2+ Kd2 c3+ Ke2 Bd6 Q3e4 Nh6 Qc4 Na6 Ra1 Bc7 Qc5 Kh4 g5 f3+ Ke1 f2+ Ke2 f4 g6 Rg8 g7 Ng4 Na3 b1R Nc4 b2 Qf5 Ne3 Nb6 Ng2 Ra4 Qe7+ Be3 c1R Qb8 c2 Kd2 Be8 Kc3 Qd6 Be2 f1R Bd4 f3 Ra5 f2 Rc5 Ra1 Kb3 b1N Kb2 Nc3 Qg6 Ra3 Qh7+ Kg3 Nf3 Na2 Rg1 h1B Ne5 h2 Bc3 Ra4 Bd4 Rc4 Ng4 Ra1 Bf6 c1R Bc3 N2b4 Bf6 Ra3 Bd4 Na2 Bc3 Rf8 g8N Rf3 N8h6 Kh4 Bg7 Rg3 Bh8 Rfd1 Rf1 Re1 Qb7 Rd8 a8R Red1 Qb8 Rc8 Re1 f1B Ra7 Rd8 Na8 Rc8 Rb7 Rd8 Rb4 Rc8 Bf3 Be2 Rf1 Rd8 Rf2 Rf1 Bg7 Bd1 Be2 Bb3 Rf4 Bf7 Ra4 Rg8 Bc3 Be8 Be5 R4c3 Rad4 Rc4 Rde4 Qg6 Bc3 Ne1 Rd4 Rc2+ Kb1 Qd6 Bb2 Bf3 Ba1 Rc1+ Kb2 Ng2 Ne5+
4QRrk/4b1p1/2nR1r1N/2br4/b1Nr1b2/1q1b2PB/1nBn2RQ/b5KB b - - 0 1 illegal: No extended proof kernel
r1R1R3/2rq1P1k/1KQrnr2/2n5/bBbp1n2/2NBQb2/N1rbR3/r6B b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Kg7 c4 b5 g4 e5 f4 d5 a5 h5 f5 b3 c5 d3+ Ke3 d4+ Kf2 h3 c6 h4 a6 b4 c7 b2 g5 b3 f6+ Kh7 a7 h2 f7 d2 Ne2 h3 Qe1 d1B Nf4 e3+ Kg3 e4 Qa5 e2 Kf2 e1N Be2 e3+ Kg3 Nh6 Ba6 e2 Kf2 Nf5 Bc4 Nd3+ Kf3 e1R+ Ne2 Na6 Ke4 Rf1 Be3 Be6 c8R Ng7 Qc5 Qd7 Nc1 Rf6 Na2 Nf4 Qc6 Bb4 Nbc3 b1R Bd2 b2 Bd3 Ba4 Re1 h1R Re2 h2 Re8 Rbf1 Rc1 b1R Rc2 Rd8 a8B Rb2 Be1 Bc4 g6+ Kh6 Ke5 Nc5 Ne4 Nge6 g7 Bd2 g8Q Rf2 Qf8+ Kh7 Qe7 Rb7 Rc3 Rc7 Rc1 Be3 Bb4 Bd2 Bb7 Ra8 Rc2 Ra1 Rc3 Qc8 Kd6 h1B Rc2 Bf3 Rc1 Rf5 Qg5 Ra6 Qg1 Rg2 Qe3 Rf6 Qb6 Nb3 Rc2 Bcb5 Re7 Bh5 Rc5 Rgg1 Bc6 Rgc1 Rc3 Rb7 Qc7 Rc2 Nf2+ Kg7 Rc5 Bc4 Qd7 Rd8 Re8 Ra8 Bh1 Bf3 Ne4 Kh7 Rc6 Nbc5 Rc7 Bab3 Kc6 Rba7 Qd5 Ba4+ Kb6 Rd6+ Qc6 Qd7 Rcc8 Rc7 Nec3+
3bn1BB/1QR1bNk1/4bqN1/2BRb1bn/2Q5/qn4r1/R1p2nP1/r3bK2 b - - 0 1 illegal: No possible last move, all moves rejected
bk2qB2/b1n3R1/q3qRR1/1Br2Qq1/8/q1Q1b1B1/1pP1rNn1/1K1b1qN1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 e4 g5 a4 d5 h4 Kd7 a5 Kc7 a6 b5 h5 f3 h6 d3 e5 f4 h7 b3 e6 b4 e7 b2 e8R g3 a7 d4 Be2 f2 Rh5 f1Q Ra2 g4 Ree5 g2 Rhf5 b3 Rb5 f3 Rfe5 f2 Nf3 g1B Re8 g3 Re4 g2 Rg4 Nh6 Ra4 Qe8 Nh2 Bb7 Ra6 Nf5 Rba5 Bh6+ Rg5 Nh4 Rg6 Na6 Re6 Rc8 Na3 b1Q a8Q Qb2 Nc4 Qa3 Nd6 b2 Rg6 Bf3 Qe4 Kb8 Qf5 Ba8 Qe1 Rc5 Nf3 Nc7 Ra6 Qe6 Ne4 Re8 h8B Re7 Kd1 d2 Bb5 Re8 Rg4 Be3 Bg7 Qfd3 Rf6 f1Q Bf8 Bgf2 Ra7 g1Q Rgg6 Qg5 Ng1 Qdc4 Qe5 Ng2 Qf5 Nd5 Rh7 Nc7 Rhg7 Qca2 Bc6 Qfa6 Bb5 Q3a4 Ke2 d1B+ Kd3 Q2a3+ Qc3 Re7 Bc4 Qe8 Bb5 Rd5 Kc4 d3 Bd2 Ba7 Be1 Bfe3 Bg3 d2 Rh7 Bf3 Nf2 d1Q Rhf7 Qe1 Rh7 Bd1 Rhg7 Qf1+ Qfd3 Q3d6 Kb3 Rc5+ Qd5 Qac6 Ka2 Qa6+ Kb1 Qa3 Qf5 Qda6 Bd6 Rd7 Bg3 Rd2 Bh2 Re2 Bg3
2r2qqb/5N2/qb3b2/b2Q1nbN/1QnN1r1R/p1K2Q1q/2bR1PB1/5kB1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 b4 Ke6 h4 Kd5 c3 a5 b5 g5 b6 e5 b7 a3 h5 g3 h6 g4 h7 a4 Qe2 d3 c4+ Kd4 c5 d5 c6 e3+ Kd1 d2 Kc2 e4 c7 a2 Qf3 d1Q+ Kb2 e2 Qg2 Kd3 Rh6 e3 Rh2 d4 Rh1 Nc6 b8Q Bf5 c8Q Be7 Nd2 Nh6 Qh3 g2 Ndf3 g3 Qa7 Rf8 h8N Na5 Rb1 a1B+ Ka2 a3 Qad7 Bg5 Nh4 Qa4 Bb2 Nc4 Qdc6 Qa6 Q8e6 Rc8 Ngf3 g1B Kb3 g2 Qcd5 Bh2 Qec6 g1Q Qg6 Bc7 Qh7 Bb6 Bg2 e1B Qa5 Ke2 Qf7 d3 Qb4 d2 Qd5 Bc2+ Kc3 Rf4 N4g6 Nf5 Rd1 Qf8 Nf7 Qh2 Qh5 Qh3 Rh2 Qg8 Bh1 Kf1 Nd4 e2+ Qhf3 Qg3 Rh4 Qh3 Ne7 Qf8 Ng8 Bf6 Rc1 Bh8 Nf6 Qg8 Qe4 Qf8 Qed3 d1Q+ Qd2 Qg8 Nh5 Qf8 Rb1 Ng7 Nb3 Qc1 Qa5 Qd8 Kb4 Re4 Nh6 Qd1 Be5 Qg8 Nf7 Nf5 Bh2 Rf4 Bg1 Baf6 Qdc3 Qd5 Rd1 Qdd8 Qad5 Bg5 Rd3 Bd2 Rd4 e1B Rd3 Bde3 Rd1 Bed4 Qd2 Bdf6 Nd4 Bb1 Kb3 Qdf8 Q2a5 Rc5 Rd3 Bc3 Rd2 Rc8 Qab5 Bca5 Qb4 Be4 Kc3 Bc2 Bg2+
3r1n2/bK1Qr1kq/1n2R1B1/1brn2RP/1B1n1N1R/2pbQ1b1/1Nb4B/2r5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 h4 Kf7 d4 b5 e4 g5 a4 c5 e5 c3 d5 f3 Ke3 b3 d6 c4 Kd4 b2 Kd5 g3 h5 f2 a5 g2 d7 g4 a6 b4 e6+ Kg7 e7 g3 e8R f4 a7 b3 Ne2 g1B Ra4 g2 Rh4 f3 Bd2 c2 Rb4 c1R Bf4 c3 Qd3 Bd6 Bd2 Ne7+ Ke4 Nd5 Re5 Qe7 d8B Bd7 Be3 Bb5 Qd4 Re8 Qd3 Nd7 Rf4 N5b6 Qd2 Nf8 Na3 b1R Rf5 b2 Re6 Bg3 Bc7 Rad8 a8Q Qf7 Qb7 Re7 Qbd5 Qg6 Qc5 Qh7 Nf4 Ra1 Qcd5 b1B+ Bd3 f1B Qd7 f2 Nc4 Bc2 Nb2 Ra5 Bc5 Be2 B7d6 f1N Qe3 B1f2 Rc4 g1N Bb4 Nf3 Bb8 Nd4 B8d6 Na8 Kd5 Nb6+ Kc5 Bg1 Rfe5 B1f2 Bg6 Bed3 Rg5 Bg1 Bb8 B1f2 Kd6 Bg1 Kc7 B1f2 Qe4 Ne3 Kb7 Ned5 Bc7 Raa8 Qe3 Rac8 Bb8 Rc5 Nh3 Bh4 Bh2 Bhg3 Nf4 Be1 Ng2 Bb8 Nf4 Bg3 Qe2 Ba7 Qe3 Nf3 Rce4 Nd4 Nh3 Rb1 Rh4 Rc1 Nf4
3BQN1R/b6R/B1nn2N1/Qbr1n1Pn/3k4/1r2N1qn/4q1pb/Kn1B3b b - - 0 1 illegal: No proof kernel
1K3B2/2rBn2k/Nn3r1q/4pQr1/8/PQ3n1b/RN2n1R1/bNn1Qrbb b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg6 f4 h5 g4 b5 c5 e5 g5 d5 f5+ Kh7 c6 b3 c7 h3 a3 h4 f6 b2 f7 b4 Nf3 d3 Ke3 d4+ Kd2 b3 Qe2 h2 Bg2 h3 Qf2 e3+ Ke1 d2+ Ke2 d1N Kd3 e2 Kc4 e1B Kb5 d3 Kb6 d2 Qg3 Ne7 Rf1 h1R Rf2 h2 Nc3 b1N Ng1 b2 Nb5 Nbc3 Nf3 b1N Qg4 Na2 Bh3 Ndc3 Qg3 d1R Bd7 Rg1 Nd2 h1B Rg2 Ra7 Nd6 Ne2 N6c4 Rf1 Nb2 Rg8 Qb3 Bh6 f8Q Rg7 Qf2 Qf8 Qfg3 Bf2+ Qge3 Bg1 g6+ Kh8 Qf2 Rf7 g7+ Kh7 g8N Rf6+ Bc6 Bh3 c8Q Rc7 Qf5+ Ng6 Ne7 Nd7+ Ka6 Be3 Nd5 Qh6 Qe1 Nb6 Nb4 Bd4 Bd7 Bc3 Ne4 Bcd4 Nc3 Nd2 Nb1 Nf3 Bd2 Nac1 Ra2 Bc3 Be3 Rdd6 Bc5 Rd4 Bf8 Rg4 Qbe6 Rg5 Qb3 Rcc6 Ka7 Rc7+ Kb8 Bcd4 Qf4 Ne7 Na6 Bc3 Nd3 Ba1 Nb2 Rf2 Qg4 Rf1 Qf5+
1nk3b1/3rRn2/1bQ1RqrQ/PN1r1B2/1Kbb4/p1N3qB/6br/4BRb1 b - - 0 1 illegal: No proof kernel
8/n1N5/2NPr1k1/3b2N1/Qn2bpbq/Br1nnn2/2B1R1Br/KR2Qrb1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 Kd2 Kf7 Kc2 b5 Kb2 h5 e4 b3 g4 c3+ Ka3 f3 g5 b2 Ka2 f4 d5 c2 e5 f2 a5 b4 a6 b3+ Ka3 h3 e6+ Kg6 a7 c4+ e7 h4 Nd2 b1N+ Kb2 h2 e8N h3 Qe1 Bc5 d6 Nf6 Qe6 Nc6 Qd7 Ng4 Ra2 c3+ Ka1 Ne3 Be2 f1R Ra5 b2+ Ka2 Qf6 Nb3 Nd2 Ra3 b1R Bg4 Nf3 Nd4 Rb3 Nc7 Rab8 a8Q Na7 Qe7 Bd7 Ra5 Rbe8 Ba3 c1N+ Ka1 c2 Rb5 Bb6 Re5 Bf5 Nc6 Nd3+ Ka2 c1N+ Ka1 Bd7 Be6 Bc5 Bd5 Bg4 Qe6 Nb4 Qe7 Ne1 Bg2 Ncd3 Nf3 Rh4 Rg1 h1B Qe6 h2 Qe7 Kh5 g6+ Qg5 g7 Kg6 g8B Bb6 Qed8 Re6 Qe7 Rh5 Re4 Qh4 Ng5 Rh7 Rc4 Bc5 Rc2 Rh6 Re2 Bb6 Bh3 Bd5 Bg2 h1B Bh7+ Kh5 Bh3 Bhe4 Bg2 Nf3+ Re1 Nc8 Qa4 Na7 Rh1 Nd1 Bf5 Bg1 Rh2 Ne3 Rb1 Ref6 Qe5 Re6 Qc3 Rh7 Qe1 Rh8 Bh3 Kh6 Re2 Kg7 Bg2 Rhh6 Bh7 Kf6 Bg8 Kg6 Bh7+ Kh5 Ne8 Bef5 Nh3 Nb2 Na5 Qd8 Nf2 Kg5 Nc7 Rh2 Bg6 Kh6 Nc6 Qh4 Bh7 Bc2 Bd3 Kg7 Ne4 Kg6 Bc4 Bd3 Ng5 Bdf5 Bd3 Bfe4 Bc2 N2d3 Qc1 Nf2 Qd2 Nfd3 Qe1
1k1QbK1B/Rn1r1nn1/n1rP3Q/2R2N2/n2p4/R6Q/N1rrnb2/5qqB b - - 0 1 illegal: No proof kernel
1b1Nnrb1/n3R3/2QP3r/3bBbKQ/rp3r2/2k2Bbq/4RNq1/1R1B1b2 b - - 0 1 illegal: No possible last move
n4rq1/rN1K2Rb/b1p1PqbN/1kR3Q1/n2b4/Q1qq4/5b2/1N1BBb1B b - - 0 1 illegal: No possible last move
r1QB1Qb1/1B4qr/bP2r2n/q2bQ3/k2K2b1/4p2b/r1B1NbR1/n1R3N1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 e5 g4 h5 b4 a5 f4 d5 c4 Kd7 b5 d3+ Ke3 d4+ Kf2 a3 f5 e3+ Kf3 h3 Ke4 h2 g5 d2 c5 e2 f6 e1R+ Kd5 d3 g6 a2 g7 e4 f7 h4 Bb2 a4 Be5 h3 Qb3 d1B Bc3 a3 Qc2 d2 Qd3 Bb3+ Qc4 d1B Bb2 Nc6 Bg2 Ba6 Bf1 Qa5 b6 Nb4+ Kd4 Kc6 Qc2 Bg4 Ke5 Nh6 g8Q Rh7 Qd3 Nc2 Nd2 Re3 Rb1 a1R Qe2 Ra2 Rc1 Na1 Nb1 Be7 f8Q Bh4 Qh8 Bf2 Nc3 Bg8 Qc2 Re1 Nce2 Kb5 Qc3 Ka4 Rc2 e3 Kd4 Rc1 c6 Rd1+ Rd2 Rc1 c7 Rc2 Qd3 Rc6 c8B Re6 Qc3 Rha7 Nf3 Rh7 Rg1 h1B Qe5 h2 Bb7 Bg2 Qcc8 h1B Rc2 Bh4 Rc1 B2h3 Rg2 Bg3 Nfg1 Bf2 Rg3 Bc6 Rg2 Bd5 Bc3 Bgf3 Bb4 Bfg4 Be7 Ra7 Nf4 Ra8 Bd3 Rb2 Qd6 a2 Nfe2 Rd2 Bd8 Rc2 Bc4 Nb3+ Kd3 a1Q Qdb8 Qf6 Qe5 Na1 Kd4 Qg7 Bd3 Ra2 Bc2+
6N1/r1n2P2/q7/QBbnqnK1/bBnr1Rpn/B1qR4/2qn2Nk/3NQ3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 b5 a4 g5 c5 d5 c6 e5 c7 e3 h5 g3 Kf3 e4+ Kg2 e2 Kh3 e1Q h6 e3 a5 g2 a6 e2 h7 d3 a7 d4 Qb3 d2 Bb2 d1N Qa2 b3 Na3 d3 Nc2 b4 Bd4 b2 Bb6 b1Q Qf7+ Nf6 Ra3 g4+ Kh2 d2 Bf2 b3 Kg3 b2 Kh4 Qd3 Ra6 Bd7 c8N Bc5 Qb3 Ne3 Nh3 d1N Qb4 g1N Ra3 Qec3 Be1 Rd8 h8B Ba4 Nf2 Na6 Bd2 Nfd5 Ne1 Qbc1 Ng2 e1Q Rh3 b1N Rf3 Qc3c2 Bb2 Nc4 Rb3 Qee3 Ba3 Nac7 Qc3 Qe5 Ne7+ Ke6 Ng8 Kf5 Rb4 N1e3 Nd1 Rd6 Rh3 Nf3+ Kh5 Ke4+ f5 Nh4 Kg5 Rdd8 Be1 Nd2 Qa1 Rd7 Rf3 Rad8 a8Q Q1b2 Qb1 Qbc3 Qa5 Ra8 Rh3 Ra7 Qa1 Qe8 f6 Nef5 f7 Qee5 Qb1 Qe2 Rd3 Rd6 Bf2 Rd8 Be3 Kf3 Qc1 Kg3 Qb1 Ncd6 Rf4 Kh2 Qa1 N6c4 Bb4 Nb1 Bc1 Nbd2 Bca3 Ndb6 Nf2 Rd4 Qe1 Nbd5 Nd1 Qd6 Nge3 Qa6 Ng2 Qe5 Rg3 Ncb6 Bb5 Nbc4 Rd3
1q1q1B1B/2b1p2R/Rrq3n1/q1N2bq1/2Q3n1/QQ2P1qb/3Nr1bB/2K2k2 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bd2 h3 Bg2 hxg2 Bg5 fxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 h4 Ke6 c4 Kf5 f4 Ke4 a4 g5 e3 d5 h5 b5 a5 b3 h6 b2 a6 g3 a7 b4 h7 b3 c5 g4 f5 d3 c6 d4 c7 Nc6 f6 Nh6 f7 Bg7 f8B Ne5 Ra3 Ng6 Ra5 Be5 Rh3 Rb8 Rc5 Rb6 Nf3 g1Q Rc3 g2 Rh5 g3 Rh4+ Ng4 Ne1 Qh1 Rc5 g1Q Rc4 g2 Na3 b1B Rc2 b2 a8Q+ Qd5 Qb8 Qa5+ Rc3 Bc2 Rh2 b1Q Qe2 Bb7 c8Q Bc7 Rh4 Qgh2 Rh5 g1Q Nf3 Qhg3 Bg7 Rf8 Ne1 Rf2 h8B Qbb5 Qf8 Qc6 Rh3 Qhh2 Qfe8 Bb1 Kd1 d2 Qc4 Re2 Bf8 Q1g2 Nd3 Kf3 Nc5 Kf2 Rh4 Bf5 Bb2 Kf1 Nb1 Qgd5 Rd3 Qd8 Kc2 d1B+ Kc1 Bbc8 Ra3 d3 Rh7 Qhh4 Ba1 Qg5 Ra4 Bb7 Qa7 Qb8 Qef7 Bb3 Bae5 d2+ Kb2 d1Q+ Nd2+ Kg2 Qfe6 Bbc2+ Qb3 Bce4 Bf4 Bc8 Qc4 Kf2 Ra3 Bg2 Bfe5 Qab5 Ra6 Qa5 Bd6 Nf6 Qc1 Bfh3 Qc2 Qh2 Nc4 Qad2 Ra3 Ng4 Qa8 Qhf4 Ra5 Qff3 Bh2 Bf5 Qa6 Qb4 Ra1 Qdd8 Nd2 Qff4 Qcc4 Qg3 Kc1 Ke1 Qaa2 Qba4 Qab2 Qb4 Ra8 Qa5 Q2a3 Kf2 Ra6 Ke1 Nb1 Kf1 Nd2+
4R3/PkQ2r2/b3n2n/rn2R1Q1/1bBR4/1b1NK2B/1pbr2rN/Brn2q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 c4 f5 e4 h5 g4 d5 a4 Kd7 e5 Kc6 c5 h3 g5 d3 a5 d2 a6 h4 e6 f3 g6 b3 g7 h2 e7 h3 e8B+ Nd7 Bg6 f4 Ra2 b2 Ra3 d4 Be8 d3 Ra5 b4 Bf7 b3 Qe1 d1B Qe7 d2 Ra1 Bc2 Be6 d1B Bf5 Nh6 Na3 b1N g8Q Nc3 Qeh7 Qf6 Qgg7 Nb5 Qe7 Rg8 Qe5 Rg2+ Ke1 f2+ Kd2 f3 Bc4 f1R+ Be2 f2 Nf3 Bb7 Rg1 h1R Nc4 h2 Bh3 Bd6 Qee7 Nf8 Ra5 Ne6 Bb2 Re1 Qd8 f1R Ba1 b2 Ke3 Bb3 Qg6 Bdc2 Qg5 Rb1 a7 Ba6 Nce5+ Kb7 Nd3 Qf7 Qdf6 Rd8 Qff4 Rff2 Rd1 Rhg1 Rd2 h1N Bf1 Ng3 Nh2 Ne2 Qc4 Nc1 c6+ Ka8 c7 Kb7 c8R Bb4 Be2 Qf8 Rd1 Rf7 Bf1 Rd4 Re8 Rd2 Qc3 Rgg2 Qcc5 Rh4 Be2 Rh5 Qd6 Na3 Re5 Nb5 Qc5 Qe7 Qc4 Qf6 Qc5 Qf1 Qd6 Nd8 Qc7+ Ka8 Ne1 Rd4 Qg8 Na3 Re4 Ra5 Bc4 Nb5 R4e5 Rd5 Qg5 Rd4 Qc5 Kb7 Qd6 Ne6 Qdd8 Rdf4 Rd4 Rff2 Nd3 Rd2 Qc7+
Q7/4nR2/qbRqqQn1/1b1Br1B1/nnPq2Nb/2b5/2k2p2/rNRN1K2 b - - 0 1 illegal: No possible last move
1b2n2b/RrNK1bqB/q1r5/pN2P2R/4q2Q/rQn1kBq1/8/1Q2Brb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 g5 h4 g3 b4 a3 c4 f3 b5 g2 h5 f2 h6 g4 h7 g3 c5 d3 e3 d2 b6 a2 e4+ Kf4 c6 f5 c7 Qf6 b7 Ke3 Nc3 f4 Qc2 f3 Be2 f1Q Rh2 f2 Rh1 Na6 b8Q Nb4+ Kc4 d5+ Kb5 d4 Qb1 d3 Qb7 Bd6 Rh4 Be6 c8B Bb8 Na4 Nd5 Kc6 Qg7 Bg4 Ngf6 Qc2 Ne8 Bd1 Nc3 Qa6 Bf7 Nh3 g1B Bf3 g2 Qb7 a6 Ba3 d1R Qcb1 d2 Ng5 Rc1 Ne6 d1Q Rh5 Qc2 Q7b3 Ra7 Bd6 Rb7 Nc7 Qfd3 Bf5 f1R Bg3 a5 Be1 Rf8 h8Q Qa6+ Kd7 Qce2 Bh7 Rc2 Q1b2 Rc1 Rb1 a1B Q2c2 Qg3 Qd1 Rc2 Rc1 Ra2 Qdc2 Ra3 Qcb1 Rg8 Qf6 Rg6 Qh4 Rc6 Rd1 Bh2 Rdd5 g1Q Rdg5 Qeg2 Rg7 Qc2 Nc5 Q1g2 Ne6 Bg1 Nd4 Qce2 Nb5 Qc4 Rg6 Qd4+ Rd6 Qdg7 Re6 Qh1 Re7 Q7g5 Bg2 Ra7 Kd8 Qg8 Na8 Rac7 Q3a2 Na4 Qd5 Bg7 e5 Bh8 Qdb3+ Nc3 Bge4 Qhf3 Bd5 Qf5 Bf3 Qe4 Rd7 Q8g7 Ke7 Rc8 Ra7 R8c7+ Kd8 Rb7 Nac7 Rf6 Kc8 Rc6 Kd7
Q1r1nr1n/4bqQ1/p1R3rr/1Rb1N3/qn3R1N/2B1nB1b/3PK1b1/kB6 b - - 0 1 illegal: No possible last move
KN1B1b1B/1QR1pnqk/2q3r1/2q1P2r/N3bn2/1R1N1q1n/1Q2b2b/3Q1n2 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bd2 h3 Bg2 hxg2 Bg5 fxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 Kd3 Kg6 Ke4 b5 Kd5 d3 e4 b3 f4 b4 h4 b2 c4 b3 a4 g3 c5 d2 f5+ Kh7 a5 g5 f6 g4 e5 Qb6 c6 Na6 h5 Nh6 f7 Qc5+ Ke4 d5+ Kd3 d4 Ke4 d3 c7 Nb4 a6 Nd5 a7 Nf4 Nc3 b1B Ra6 b2 Nf3 g1Q Na4 g2 Ne1 g3 Rh3 Bg4 c8Q Be2 Rc6 Qh1 Qb7 g1Q+ Ng2 Rg8 Rc7 Rg6 Qb5 Rc8 a8Q Bc2 Qbb8 b1N Qb2 Re8 Qab7 Rc8 Qe1 d1N Bd2 Re8 Ba5 Ra8 Qec3 d2+ Qd3 Raa6 Bb6 Rg5 Ba5 Rag6 Bb6 Qb5 Ba5 Nf2+ Kd4 d1Q Ne1 Qc1 Qd1 g2 Rb3 Nd2 Nd3 Nf1 Bb6 Qd7+ Kc5 Qdh3 Kb5 Qf3 Ka6 N2h3 Ka7 Bb1 Ka8 Qcc5 Nf2 Be4 Nd3 Qgh2 Ba5 g1B Bb6 Qhg3 Ba5 Ng4 h6 Rh5 Bb6 Bh2 Ba5 Kh8 h7 Nh6 Bb6 Kg7 h8B+ Kh7 Rd7 Nf2 Bd8 N2h3 Rc7 Qg5 Nb4 Qf6 Nd3 Qg7 Nb6 Qg4 Rb4 Qe6 Na4 Qf3 Rb5 Qgf6 Rb3 Bg7 f8N+ Kg8 Qdc1 Qec6 Qbc2 Nf7 Nd7 Kh7 Q1d1 Bf8 Qb2 Qg7 Nb8
n1brn3/2p3R1/N5QB/QNq1b3/4N2K/1P3q1B/2knbRr1/1nqbqB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 d4 Ke6 e4 h5 g4 a5 g5 f5 e5 Kd5 e6 Ke4 e7 c3 e8B f3 g6 a3 g7 a4 d5 h3 Kg3 f4+ Kf2 h2 d6 a2 d7 c2 b3 h4 Be2 h3 Bf7 a3 Bfc4 Nf6 g8N Qe7 d8Q Bg7 Bb5 Qc5+ Be3 c1Q Bec4 Nbd7 Nh6 Nb6 Qf1 Ne8 Qe1 Rg8 Qdd1 Be5 Qdd2 Rg2+ Kf1 f2 Ng4 Rb8 Qd6 Na8 Ke2 f1N+ Nf2+ Kf5 Qb4 Nd2 Qa5 f3+ Kd3 Qe1 Ne4 f2 Ne2 f1B Rg1 h1B Bh6 h2 Nbc3 Qc1 Rb1 a1N Nd5 a2 Rb2 Nc2 Nb4 a1Q Na6 Na3 Ba4 Nab1 Bc6 Rg8 Rg7 Bf3 Ba4 h1Q Ra2 Bh3 N2c3 Bhg4 Nb5 Bd1 Rc2 Qe1 Qdb6 Qaa3 Ra2 Qc6 Rc2 Bge2+ Ke3 Bd7 Ra2 Rd8 Rb2 Bc8 Bd3 Qh1 Kf2 Qe1+ Kg2 Qac5 Kh3 Bf3 Bf1 Bfe2 Rg2 Rg3+ Kh4 Q6d5 Qd6 Qd3 Rf2+ Qf3 Rc2 Rg5 Qg6+ Kf4 Rc4 Ke3 Rb4 Kd3 Rd4+ Kc2 Rd7 Rg2 Rg7 Rd6 Na7 Bf4 Bd7 Be5 Bh3 Rd8 Nb5
r1R3K1/nBbb3N/1r1b1B2/nr6/2p3Q1/1rQR1Np1/r2Pq1k1/1BQ2q1q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 h4 g5 a5 c5 h5 b5 h6 f5 a6 g3+ Kf3 g4+ Kg2 c3 h7 c2 a7 c4 Ra3 b3 Ra2 b2 Ra3 b4 Rh6 f3+ Kh1 Kf4 e5 b3 e6 f2 Kg2 Bd7 e7 Nc6 e8B Qe7 Bg6 Na5 Rh3 Qe2 Rh1 Bd6 Qe1 Ne7 Rh4 Nec6 Nf3 Rhb8 h8Q Rb6 Nc3 b1R Bb2 c1R Ne4 Rc2 Bf6 Ra2 Neg5 b2 Nh7 Rb3 Qc1 Rb5 Kh1 g2+ Kh2 g1B+ Kg2 Ke4 Rd3 Bgh2 Qc8 Bhe5 Rh2 g3 Kh3 Rb3 Bg2 f1Q Kh4 Qh1 Kg5 Bc7 Kh6 Bed6 Kg7 Rb6 Bf7 f4 Kg8 Rb3 Rh5 Rb6 Rc5 Rb5 Ng1+ f3 Bg6+ Kf4 Be4 f2 Nf3 f1Q Qc3 Rc1 Bf5 b1R Bg6 R1b3 Bf5 Rab8 a8Q Na7 Qd5 Rca1 Qc1 Qe4 Qd4 R8b6 Qdc3 Qe3 Be4 Qee2 Bb7 Kg4 Rc6 Kf4 Bh3 Ke4 Bf5+ Kf4 Be4 Kg4 Rc5 Kh3 Rc6 Kg2 Bg6 Be8 Qg4 Bd7 Be4 Bb8 Rc8 Bbc7 Bf5 Ra4 Qh5 N7c6 Nfg5 R1a2 Rd4 R4a3 Bb1 Ra4 Ba8 Nb7 Qg4 Ra7 Rd3 Nba5 Bb7 Ra8 Nf3 Na7 Qa1 Bf4 Qd4 Bfd6 Qdc3
4QNq1/r3B1r1/2K2n2/1n3b1R/p2Brbb1/b2P2bn/1Rp2kB1/NQQq4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 f5+ Ke5 h5 e4 a5 g5 c3 b3 c2 g6 f3 d3 f4 g7 h3 Qe2 f2 Qd1 f3 Qe1 a3 Qe2 a2 Na3 a4 Qd1 h2 Bb2 c1B Nb1 h4 Nh3 Bg4 Be2 f1B Nd2 f2 Nc4 Na6 Rg1 h1R Qc2 Nf6 g8Q Rh7 Nf4 h3 Qb1 h2 Bf3 Ra7 Na3 Rg7 Nc2 Bfh3 Rg2 f1Q Ng6 Qd1 Qh8 c6 Qh6 Nc7 Re2 Re1 Bg2 Be7 Nf8 h1N Rd2 Nb5 b4+ Kb6 Bd4+ c5 Qe3 Nf2 Re2 Ba3 Qec1 Bf5 Rd2 Bhg4 Re2 Nh3 Rf2 Nd7+ Kd5 Bd6 e5 Re4 e6 Bg3 e7 Bf4 e8Q Qb8 Bf6 c4 Be7 c3 Re2 Ka6 Kc6 Nf6 Nd4 Bg3 Rb2 c2 Nb3 Qe5 Bc5 Qe6+ Bd6 Qg8 Be7 Bf4 Nd4 Nd6 b5+ Ka5 Nb3+ Kb4 b6 Kc3 b7 Nb5 b8B Bg3 Nd2 Kd4 Be5+ Ke3 Nb3+ Kf2 Bd4+ Ke2 Qf4 Ng5 Be5 Qd2 Qh1 Qe1 Rd1 Qf1 Na1 Qf3 Qc1 Kf2 Qb1 Qe2 Qh6 Qd2 Rh1 Qd1 Rh5 Nh3 Qhc1 Bf4 Rb4 Bg3 Nb3 a1B Bc3 B1b2 Be5 Bd4 Na1 Be3 Rb2 Bef4 Bd4+
2bkq3/Q3q2n/rqNbr2N/3P1p1Q/1p1Q1NB1/2B2rr1/2KnR1Rr/1n6 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 Kd2 b5 g4 h5 e4 f3 a5 f2 g5 c3+ Kd3 c4+ Kc2 h3 d5 h4 a6 h2 e5 h3 g6 Nc6 g7 Nf6 g8N Nh7 a7 Qb6 e6 Kd8 Qe1 b3+ Kd1 b4 Ba3 b2 Nd2 b1N Nb3 c2+ Kc1 Bd6 Ne7 Rg8 Qd1 Ne5 Qd4 Nf3 Be2 Rg3 Na5 Nfd2 Ra2 f1R+ Kb2 c1R Ng8 Rcd1 Kc2 c3 Nh6 Rff3 Bb2 Re1 Bd1 Ree3 Ne2 Re4 Rf1 h1R Rg1 h2 Nf4 Re5 Rg2 Ree3 Kc1 c2 Bc3 Re2 Rb2 Rhe1 Ra2 h1Q Kb2 Qh5 e7+ Kc7 Nc6 Qe8 Kc1 Re6 Re2 Rh1 Kb2 Rh2 Kc1 Qd7 e8Q Qe7 Qh5 Qe8 Na5 Kd8 Kb2 Rb8 a8Q Rb7 Kc1 Ra7 Kb2 Ra6 Qa7 Nf1 Kb3 c1Q Rab2 Qe3 Kc2 Nfd2 Rg2 Rf2 Bg4 Rff3 Kd1 Ne4 Rbe2 Ned2 Kc2 Qe5 Re3 Qg7 Ree2 Qge7 Nc6+
1n1b1Brb/2R3N1/1nN1P2K/q1r4b/BRk2N2/3p4/1p1Qqrn1/1nn2Q1B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 d5 c4 f5 h5 b5 e5 g5 h6 f3 Kg3 d3 a5 d4 h7 f4+ Kf2 d2 a6 d3 a7 b3 Rh6 b2 Be2 g3+ Kf1 f2 Kg2 f1Q+ Kh1 g2+ Kh2 b4 Rd6 f3 Kg3 g4 Kf4 b3 Ra4 f2 Nh3 g1N Rb4 g3 Rd7 g2 Ng5 Bg7 Nc3 b1N Nd5 Ne7 Ba3 Rg8 h8Q b2 Qh1 Qa5 Rc7+ Kd4 Bh5 Qe2 Be8 Bh8 Ba4 Bg4 Qc2 d1N Qd2 Ne3 c5+ Nc4 c6 Nc8 Qh3 f1R+ Qf3 Rc1 Qf1 Bh5 Kf5 Nb6 Nf4 Rg7 Kf6 Rg6+ Kf7 Rf6+ Kg8 Kc5 Kh7 Rf7+ Kh6 Ne3 e6 Rf5 Nh7 Rc2 Nf6 Rc3 Rb3+ Kc4 Ne8 Rc1 Ng7 Rc5 Qf2 Rf1 Qfe1 Rf2 Qf1 Qg4 Bb4 Ne2 Ba3 g1B Bb4 Rf5 Bf8 Nc1 Rb5 Qe2 Rb3 Na6 Rb5 Rc8 a8B Ng2 Bb7 Rc5 Rb3 Nb8 Ba8 Kd4 Rb4+ Rc4 Bb7 Bh2 Ba8 Bg3 Bb7 Bh4 Bc5+ Ke4 Rd7 Rg8 Bf8 Ne3 c7+ Ke5 c8N Rc5 Na7 Bd8 Bh1 Ng2 Re7 Kd6 Rc7+ Ke5 Rb5 Kd4 Nc6+ Kc4 Rb4+
1q5r/2q1RN2/k3P1qp/q2b1Q1b/1n1K1Q1R/1Nn2p1r/BN4q1/b4rBR b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 b5 e4 d5 g4 Kd7 c4 Kc7 a4 Kb7 c5 f5 a5 f3 c6+ Ka6 e5 h3 g5 h2 g6 f4 e6 d3 g7 d2 c7 d4 Be2 b3 Qf1 d1B Qh3 d3 Ra3 b2 Qf1 h6 Nd2 b1Q Qg2 b4 Qh3 b3 Qf5 b2 Qh7 Ne7 g8R Nbc6 Rg4 Bg7 Nh3 Bb7 c8Q Nb4 Qb8 Ned5 Rh4 Nc3 Ng5 Qc7 Nf7 Bd5 Nb3 Qa1 Bf1 b1Q Qf5 Ra7 Bg2 d2 Ra4 Be2 Qf8 d1Q Be3 Qdc2 Bd4 Kb5 a6 Rb7 a7 Qb8 Na5 Ka6 a8N Rc7 Nb6 Rd7 Rc1 h1Q Nbc4 Qh3 Rh1 Bd1+ Kf1 f2 Nb2 Qg4 Ba7 Qbc1 Bc5 Qg6 Be4 Q2d2 Bb1 Qcc2 Ra3 Bh5 Rb3 Qa4 Ba2 Qc6 Bd4 Qcc7 Ra3 Qa4 Nb3 Qaa5 Ra4 Nd3 Rc4 Nb4 Rc5 Rd6 Rb5 Rc6 Rb7 Rc4 Bc5 Re4 Bb6 Re3 Qd6 Rh3 Qde5 Qcd8 Re7 Qdc7 Qee4 Bg4 Kg2 f1R+ Bf2 Qc2 Qf3 Qe4 Bg1 Bh5+ Rg4 Nb5 Nd3 Rd1 Kf2 Ba1 Nb2 Nc3 Rh4 Rc1 Qe3 Qc2+ Qd2 f3 Ke3 Rf1 Qc1 Q2h2 Kd4 Qhg2 Qcf4
R2B1rr1/R2nN2Q/2K1p2B/1n1Bqr1P/6rb/1b2r2p/1Q1N3k/2R2bnq b - - 0 1 illegal: No proof kernel
3r1RNR/6b1/2BPn1kn/2Q2pqp/b3Nb1B/3Q1q2/r2N3r/2nnK1Rn b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 g4 Kf7 e4 h5 e5 b5 d5 c3 g5 c4 e6+ Kg6 d6 f3 e7 f2+ Ke2 h3 e8R c2 a5 c3 a6 b3 a7 b4 Rh2 b2 Be3 c1B Bd2 b3 Re5 c2 Ra2 Nd7 Be1 Bf4 Rc5 Nh6 Nc3 b1R Nf3 b2 Bg2 Bg7 Rh1 h2 Nd2 Nf8 Bc6 Bd7 Nce4 Ne6 Rg1 h1N Raa5 f1N Bh4 c1N+ Ke1 Ne3 Qe2 Qe7 Qd3 Rhd8 Rcb5 Ra1 Rb8 b1Q Rc8 Rb8 a8Q Ra2 Qa7 Nd1 Qc5 Rbb2 Ra7 Rc2 Raa8 Qb7 Rab8 Rg8 Rf8 Be8 Bd5 Ba4 Bc6 Qb3 Rf7 Rd8 Rf8 Rd7 Rbe8 Rd8 Rh8 Rcb2 Ref8 Qa3 Qf1 Qh3 Qd3 Qf3 Ng3 Bd4 Ndf1 Kg7 g6 Qg5 Ne4 Rh2 Nfd2 Nf7 Rhg8+ Kh6 g7 Kg6 Rh8 Nh6 g8N Bf6 Qe2 Bg7 Qd3
3q1Q1n/7N/2BpR1kb/Qb3R1b/q3nBPp/5Q1K/r3Nq2/2bBnrb1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 b5 a4 e5 g4 h5 Kg2 b3 c4 b4 a5 b2 c5 d6 c6 d3 a6 d2 c7 e3 a7 e2 f5 e1B f6 b3 Qf3 d1Q Nd2 b1N Qf5 h3+ Kh2 e4 Qf4 h4 Qg3 e3 Qg2 e2 Ra5 b2 Qd5+ Kg6 f7 Na3 Rc5 b1B Qf3 Bd7 c8B Nc6 Rc2 Nf6 Qg2 Bh6 f8Q Ne5 Ngf3 Bf2 Rc4 e1B Nd4 Nf7 Ne6 Qa4 Nd4 Bb5 Ne4 Bed2 Rc5 Nc2 Bb7 Ne1 Ng5 Ne4 Bc6 Rh7 Bc4 Nh8 Bb3 Rf7 Ne2 Bfe3 Rd5 Rf1 Bd1 Ba2 Rc5 Bf7 Rf5 Bf2 Nh7 Bde3 Bb2 Bc1 Qf3 Bb6 Rg1 Bd4 Rg3 Bc5 Be5 Bg1+ Kh1 h2 Bf4 Nc2 Kg2 Ne1+ Kh3 Be8 Rg2 h1Q+ Rh2 Bf7 Qg3 Qf3 Rh1 Qc3 Qf3 Qc5 Rh2 Qf2 Rg2 Rb8 a8Q Rc8 Qa5 Rc7 Be8 Rc2 Bc6 Ra2 Nc3 Qfd4 Re2 Qf2 Re3 Be8 Ne2 Nf6 Ree5 Ne4 Qb6 Bf7 Qe8 Kg7 Qa5 Bh5 Qf8+ Kg6 Re6+
nQR1rn2/2bQ1Q2/2Prp2k/2K1B2B/2N1q2N/3bpnq1/2nq4/Rn2Br2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 a4 b5 g4 h5 f4 d5 a5 e3 Kd3 b3 c5 b4 c6 b2 a6 b3 g5 h3 a7 h2 Qe2 h4 Ra6 h3 Qg4 Qd6 Nd2 b1N Ra3 b2 Qg2 Ba6+ Nc4 Nd7 Rb3 Nb6 Qg4 Rd8 a8Q Nd2 Qac8 b1N Rb5 Nf3 Qb7 Nf6 Ra5 Nfd7 Rc5 Na8 f5+ Kg7 g6 Qg3 f6+ Kh6 Kc2 d3+ Kb3 d4 Kb4 d2 f7 d1Q Bb2 Qd2+ Bc3 Bg7 Qb8 Rhe8 Rd5 Be5 g7 Nf8 g8Q Bc7 Kc5 Rd6 Be2 Bb5 Qd7 Ba6 Nb2 Bd3 Bb4 e6 Bc3 Na3 Nc4 Nc2 Rg5 Bh7 Bd1 d3 Be5 Be4 Ne2 Bg6 Nd4 Bf5 Re1 h1Q Be2 h2 Ra1 Qhg2 Rg4 h1R Rf4 Ng1 Bh5 Qe4 Nf3 Bh7 Nh4 Nf3 Rg4 Rf1 Rf4 Qdg2 Rg4 d2 Rg5 d1N Rg7 Ng6 f8B Nc3 Qgf7 Nb1 Be7 Qd2 Rg8 Nf8 B7f6 Qg7 Bg3 Bf5 Be1 Qg3 Be5 Qeg4 Qdd8 Bd3 Qdd7 Qe4 Qdd8 Nh7 Qdc8 Re7 Rd8 Re8 Qcd7 Nf8 Rc8
rN1Rbr1N/2nN1B1r/bP6/p1bq4/1BrqRq2/1K5p/Q1n2k1B/Q4r2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 g4 d5 b4 a5 g5 h5 g6 d3+ Kb2 Kd4 f4 e5 b5 h3 b6 d2 c5 Ke3 f5 h4 c6 d4 g7 a3+ Kb3 d3 c7 a2 f6 h2 f7 Qf6 Be2 Nh6 g8Q Nf5 Qc2 Kf2 Kb2 d1B Qb3 d2 Bc4 e3 Qg6 e2 Qg5 e1R Nf3 e4+ Nd4 e3 Qg7 e2 Na3 Ba6 c8N Ne3 Nd6 Qf4 Nc6 Rf1 Qgc3 Be7 f8B e1R Bf7 Bh5 Nac4 d1Q N4e5 Qd5 Nd7 Nc2 Qbc4 h3 Kb3 Rh7 Bd2 Re6 Re1 a1Q Re4 Rf6 Rg1 h1R Rg8 Qd1 Qa1 Bg6 Bc3 Q1d4 Bb4 Rc1 Bg7 Rhf1 Rd8 Rf5 Be5 Bf8 Nc8 Bc5 N8e7 Bh5 Ng6 Rf6 Be6 Rf8 Nh8 Be8 Bg8 Bb5 Bd6 Na6 Bf7 Nc7 Ncb8 Ba6 Be5 Qg4 Bh2 Qf4 Ka4 Na3 Qb3 Rc4 Qba2+ Nc2 Kb3
q3B3/3nkQ2/qp3r1P/NR1b1q2/5r1B/rNbQBnK1/1p2q3/1q1nN1R1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 d5 h4 e5 c4 g5 f4 e3 f5 b6 a5 e4 a6 g3 c5 e2 h5 d3 f6 b3 h6 d4 f7+ Ke7 a7 b2 c6 g2 Kf2 e1R c7 d2 Rh3 d3 Be2 g4 Ra5 g3+ Ke3 Be6 Kf4 e3 c8Q Nd7 Qb8 Ngf6 Rh2 Nh7 Rb5 Rf1+ Nf3 g1Q Rc5 g2 Qc2 d1Q Kg3 d2 Bb5 e2 Na3 Bd5 Rh1 Ng5 Qb7 Bg7 Qd3 Qa4 Nc4 d1N Na5 Rf8 Ne1 Nf3 Be3 Bc3 Bc6 Rf2 Rb5 Qf1 Rg1 Qc8 Qc7 Qa6 Qf4 Nd2 Qff5 Rf4 Qg6 Nf3 Qgf5 Rab8 a8N Rb7 Nc7 Ra7 Ne6 Qa2 Nc5 Qa4 Nc2 e1Q+ Kh3 Qfe2 Ncb3 Q1f1 Kg3 Qe4 Qg6 Qf5 Qh7 Qb7 Ne1 Qa8 Nc4 Ra3 Nca5 Nb8 Be8 Nd7 Qg6 Rg8 Qg4 Rg6 Qg5+ Rf6 f8B+ Ke6 Bg7 Ke7 Qh5 Qd8 Rb4 Qc2 Qb5 Qb1 Qe2 Re6 Rh1 Qa8 Qc2 Qfa6 Rb5 Rc6 Qd3 g1Q+ Ng2 Ke6 Bf6 Qf1 Ne1 Qe2 Rg1 Kd6 Bg7 Ke7 Bf6+ Kf8 Bh4 Rf6 Qg6 Ke7 Qf7+
1n2Qb2/3Q1R1P/1R6/2qqr3/K1bbkr1r/NB1B3p/2np1r2/1rBQq2N b - - 0 1 illegal: No proof kernel
3Rrr2/3K2bp/3P1Q1n/4NQ1r/1B1kq2p/qn1R4/bRQnB2b/2N1n2n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 g4 b5 a4 b3 d4 c3 d5 f3 e3 b4 a5 c2 a6 c4 d6 b2 Kd5 f2 e4 b3 a7 c3 Na3 b1R Qe1 b2 Qe2 Nh6 Qc4 Nd7 Kc6 Ke5 g5 f5 g6 f4 g7 f3 g8R Nc5 Bh3 f1N Rg7 f2 Rh2 Qa5 Rd7 Nd2 Rd8 f1N Bg4 Ng3 Ne2 Bg7 Rg2 Rb8 a8Q Rf8 Rh2 Qb4 Qa5 Nh1 Qab5 Nb3 Bd2 Be6 Nc1 Bg8 Qe6+ Kd4 e5 Nd3 Qf6 Ne1 Nc4 Bf7 Ra6 Ra1 Ra7 b1N Be2 Ra5 Kd7 Ra8 Qc6 Qb7+ Qc7 Qe4 e6+ Re5 e7 Rb8 Qe6 Rh5 e8Q Rc8 Q8e7 Rb8 Bg5 N1d2 Qf5 Rc8 Ra3 Bd5 Na2 c1Q Ne5 c2 Qef6 Qb2 Qc6 c1B Qc2 Qc3 Rf2 Bb2 Nc1 Qa5 Ra2 Qa3 Rf3 Na5 Nc4+ Kc5 Be3+ Bd4 Re8 Rb8 Bf2 Ra8 Re3 Be5 Rb2 Bh2 Ne5+ Bc4 Bg1 Kd5 Rf3 Ba2 Bc5 Nab3 Bb4 Kd4 Rg3 Ra5 Rb8 Rb5 Ra8 Rbb8 Re3 Rbe8 Rd8 Kd5 Rf3 Kd4 Rd3+
1qr5/R3R1p1/q2Qbk2/5Bn1/3N1N1P/qp1bqrnq/rb2Q1N1/BQ2K3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 c4 Ke7 h4 f5 e4 d5 a4 b5 c5 b3 c6 d3 a5 d2+ Ke2 b4 e5 g3 c7 f3+ Ke3 b2 e6 f2 Ke2 d4 a6 b3 a7 g2 Ra3 d3+ Kf3 f4 Ra2 Kf6 e7 Nd7 e8Q Ne5+ Ke4 f3 Ke3 Ne7 Nh3 g1Q Rh2 Be6 c8N Nf5+ Ke4 Ng3+ Ke3 Nf7 Nc3 b1B Ne7 Qb8 Ne2 Ng5 Ng6 Ba3 Nhf4 Bb2 Bh3 f1Q+ Rf2 Qgg2 Bf5 Qh3 Ng2 Rg8 Qd7 Rc8 N6f4 Qe1 Qc2 d1Q Qd6 d2 Ra1 Qg1 Nd4 Qdf1 Ra4 d1R Qe2 Bd3 Bd2 Ra1 Bc3 Ra2 Kd2 Qa1 Rf1 f2 Re1 f1Q Ra3 Qb5 Ra5 Rab8 a8Q Rf8 Ra7 Rbc8 Qaf3 Qb8 Qd1 Rf7 Qb1 Qe3+ Kd1 Be4 Qg4 Qa6 Re2 Bd3 Ke1 Bc1 Qf3 Qb2 Qh5 Qba3 Ba1 Bb2 Qg4 Qf3 Re4 Qe3+ Qe2 Rff8 Bg4 Rf7 Nd5+ Kg6 Re5 Rf3 Ndf4+ Kf6 Qc5 Bef5 Ree7 Bd7 Bf5 Be6 Qd6
n2Qq1Q1/k1N3p1/R3Br1P/1b1b2n1/N1p2R1r/B1KbN3/2bQ2r1/n3q1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 d4 Kc6 Kd2 Kb6 h4 c5 e4 f5 e5 c3+ Kc2 g3 h5 b3+ Kd3 c2 d5 f3 e6 f4 e7 g2 e8Q b2 d6 f2 d7 f3 a5+ Ka7 a6 b5 Qde1 b4 Q8e7 b3 Qd2 Bb7 Qeg5 Nf6 Qh4 Qe8 d8Q Nbd7 Qe7 Nb6 Qhe4 Nh7 Qa4 Ng5 Nc3 b1B Qh4 b2 Qee1 Bd5 Nh3 g1R Qc4 Rg2 Be2 f1B Qed1 f2 Na4 Rh6 Qb3 Rf6 h6 Rb8 Nf4 Na8 Kc3 Rb4 Bb5 Bd3 Bd7 f1B Be6 Bb5 Rh4 Bfd3 Ne2 Bd6 Nd4 Bh2 Rf4 Bg1 Nf5 Rd4 Ne3 c4 Qa3 Re4 Qf8 Rd4 Qg8 Re4 Rf2 Rh4 Ra3 Ba2 Rf1 b1Q Rf4 Bb3 Bb2 c1N Ra1 Bbc2 Ba3 Kb8 a7+ Kb7 Ra2 Nb3 Ra1 Nc7 a8N Ka7 Qf3 Qe1 Qd1 Na6 Ra2 Na1 Nc7 Nb8 Qf3 Nd7 Qe4 Nb6 Qd4 B5e4 Qd8 Na8 Rb2 Bd5 Rb4 Ba6 Rb6 Bb5 Ra6+
n1rRr1B1/2R2pnn/q6b/2Ppbn2/r1N4q/Q1R1Qb1k/K1Bn4/1NB5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 e4 d5 h4 g5 c4 b5 Kc2 g3 Kb3 g2 c5 f3 a5 d3 h5 g4 h6 f2 e5 Kf5 e6 d2 h7 g3 a6 Qh4 e7 Nf6 e8Q Bh6 a7 Nh5 Na3 Nd7 Bb2 Ng7 Rh2 Nb6 Qe7 Re8 Qb1+ Kg4 h8R d1N Nc4 Ne3 Bc3 Nef5 Ka2 b3+ Ka3 b2 Bd4 b4+ Ka2 b3+ Ka3 Ba6 Be5 Rac8 Ne2 g1N a8B g2 Rh3 Nf3 Qd3 g1B Bc6 b1R Ba4 b2 Bf4 Ng5 Bc2 Nh7 Ka2 Bh2 Qee3 Na8 Qa3 Bg3 Bg2 f1Q Nc3 Bh2 Bg5 Be5 Bge4 Rd1 Rg8 b1N Rf8 Nd2 Nb1 Re6 Rd8 Re8 Qf2 Bb5 Rc3 Bd7 Bed3 Kh3 Qg1 Re1 Qf2 Re4 Qe3+ Ng3 Bf4 Bg4 Bg5 Rd4 Be4 Bf3 Bg6 Nf8 Bh7 N3f5 Bg8 Nh7 Qe1 Nb3 Bc1 Nd2 Qe3 Rg4 Nb6 Ra4 Nc4 Qd3 Na5 Nb6 Kb2 Re7 Qb3 Rb4 Ka3 Qb5 Nc4 Re8 Kb2 Na8 Ra7 Qa6 Rc7 Ra4 Qa3 Kg2 Ka1 Kh3 Ka2
1QB4q/1nQp2R1/2rN4/P3bB1N/br1B2n1/1bb2Rp1/3qq1n1/1K3bkN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Kd6 e4 Kc5 h4 f5 c4 g5 Kc2 b5 e5 b3+ Kb2 f3 a5 b4 h5 f2 e6 f4 h6 d3 h7 Kd4 e7 d2 e8Q g3 c5 g4 c6 g2 c7 f3 Qee1 g3 Be2 Ke3 Qf1 Ba6 c8B Bb5 Rh3 Ba4 Ra2 Nh6 Bb7 Ra6 Rh1 Ng4 Rh5 Bg7+ Nc3 Nc6 Rh1 Be5 Nh3 g1B Qg2 f1N Rh2 f2 Ka1 b2+ Kb1 Qe7 Rh1 Rb8 h8N Nd8 Bd5 Nb7 Qc2 Rc6 Be4 Qh4 Ng6 Qh8 Ba6 Bb3 Nb5 Ke2 Ne7 Nfe3 Qc3 d1Q Nd5 Qd2 Ra3 Ke1 Bc2 f1B Nf2 Ke2 Qh2 Ng2 Nd6+ Ke1 Nf4 Ba4 Nfe4 Bgd4 Nh5 Bb3 Qc5 Bc3 Qb6 Ba4 Qc7 Qe2 Bg5 Bb3 Bf6 Qd2 Nc5 Kf2 Bf5 Ba4 Qh4 Qe2 Rh2 Kg1 Nd3 Qd2 Nf2 Bb3 Nh1 Ba4 Ra1 Qe2 Ka2 b3+ Ka3 Nd8 Bg5 b1B Bc8 b2 Ng7 N4e3 Qb4 Ng4 Rh7 Bd2 Nh5 Ba2 Rg7 b1Q Bh6 Qbd1 Be3+ Nf2 Rc1 B2b3 Bd4 Qc2 Rd1 Bc3 Rd3 Qcd2 Rf3 Rb7 Qbb6 Rb8 Qba7 Rb4 Qa8 Nb7 Qab8 Bc2 Ka2 Bcb3+ Kb1 Rbc4 Rd3 Rb4 Re3 Ng4 Rf3+
2B2N1r/1Rp1rr2/1Q4b1/n1Qq1q2/2qRP2k/1q1Bp3/1qnN2Kn/1Qb3B1 b - - 0 1 illegal: No proof kernel
1K2n1rb/2pNq3/p3b3/k4R1n/rRPrB3/2Q1Q1rr/1q1bBqR1/1N4Q1 b - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 f4 b5 b3 bxa4 Bb2 h6 Bf6 gxf4 g5 Na6 g6 Nb8 Bg5 hxg5 Ke2 Kd7 d4 Kc6 h4 Kb6 c4 f5 h5 e5 h6 e3 Kf3 g4+ Kg2 a3 d5 e2 d6 e1Q d7 a6 b4 a2 b5 f3+ Kh2 e4 g7 f2 Kg3 f4+ Kh2 g3+ Kg2 e3 Kf3 g2 Ke4 e2 Kd5 f3 h7 Nf6+ Ke6 Qb4 g8B e1B Qd2 Bg7 Rh2 Ne8 Be2 f1Q Qe3+ Ka5 b6 f2 b7 Qb2 Nf3 g1R Rg2 Bd2 Ne5 Qe7+ Kd5 Bf6 d8Q Nd7 Kc6 Bg7 b8R Ndf6 Qd6 Nh5 Bd5 Be6 Be4 Rg8 Rb4 Bh8 Kb7 Rd8 Qdd3 Rd4 Nd7 Qe1 Ka7 f1R Kb8 Rf3 Qc3 Qf2 Qc1 Rfg3 Qf1 Rh1 Qg1 Bf6 h8Q Rhh3 Qhh6 Bg7 Qc3 Bh8 Qhe3 Bd5 Na3 Be6 Rf1 a1R Nb1 Ra3 Qf3 Ra4 Qfe3 Qe1 Rf6 Qf2 Rf5+
2N1bq1R/1pk2n1K/1R1b4/1nNp1B2/3r1Q1b/1P1b1b2/1q1QR3/3NnrqB b - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 f5 cxd4 b3 a5 f6 a4 Nh3 a3 Bb2 axb2 Ng1 exf6 Nc3 f5 Nb1 f4 Kf2 d5 a4 Kd7 h4 f5 e4 g5 c4 f3 Kg3 f2 e5 d3 c5 d2 e6+ Kc7 c6 f4+ Kh2 g3+ Kh3 g2 Kg4 f3 Kf5 g4 Kg6 g3 e7 Na6 e8B Bd7 h5 Bd6 a5 Nh6 Nh3 g1B Ra2 g2 Ng5 Rf8 Nc3 b1Q+ Nge4 Nf7 h6 Qb2 h7 Bgh2 h8R g1Q+ Bg2 f1N Rh6 f2 Nc5 Ne3 Kh7 f1B Qf3 d1B Qf4 Bf3 Nd1 Bb5 Rg6 Bf5 Bd7 Bfd3 Bf5 Bg3 Rhh6 Nc2 Bh1 Qb8 Rg8 Qc8 Rh8 Bh4 Rg6 Ne1 Rh6 Nb4 a6 Nbc2 a7 Na3 Qd2 Qe8 Re6 Rc8 a8Q Ba4 Re2 Nb5 Ra1 Qe7 Rc1 Rce8 Rc4 Qd8 Rb4 Re4 Qa6 Rd4 Qf4 Nc3 Rb6 Nb5 Qa5 Rg8 Rc2 Qf8 Re2 Rg2 Qb4 Rf2 Qbd2 Rf1 Ra6 Kb8 Re7 Nc3 Rb6 Bab5 Re6 Kc8 c7 Be8 Ne4 Kd7 c8N Kc7 Nc5 Nb5 Re2
3qr1Q1/P2Q3p/3qNk1Q/B3r1nn/pNb1nbn1/5BRb/1n3r2/1KR3B1 b - - 0 1 illegal: No possible last move
R5bk/p3q3/r1R1Q2B/3qn3/P1n3rB/1R1N1rB1/3rpN1b/1r2qbQK b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 g5 d6 Bd3 dxe5 Bf5 e4 Bg4 hxg4 Kf1 c5 Kg2 e5 d4 f5 h4 Kf7 b4 Kg7 a4 e3 h5 e4 d5 e2 g6 e1Q d6 f3+ Kh2 e3 b5 f2 b6 f1R b7 e2 d7 c3 Qd5 f4 Qe5+ Nf6 Nf3 c4 Na3 c2 Qc5 c3 Ng1 g3+ Kg2 f3+ Kh3 g2 Kh2 f2 Nc4 Nc6 b8Q Ne4 Qbb4 Nd6 Qb3 Qe7 d8B Be6 Nb2 Ne5 Rb1 Bg8 Nh3 g1R Qe6 Ndc4 Nd3 Rh6 Rb3 Rg4 Bc7 Kh8 g7+ Kh7 Bg5 c1R Bh4 c2 Bd6 Rhg6 h6 Rd8 Rg1 Qd2 Kh1 Rb1 Bc7 c1Q Bb8 Nf3 Bbg3 Nfe5 Qe3 Qce1 Qc5 Bf7 g8R Rf6 Rg6 Kh8 h7 Bg8 Qe3 Rf3 Rf6 Bg7 Rf8 Rd6 Ra8 Ra6 Q3b6 Bh6 Qd4 Bf4 Qa1 Kg7 h8B+ Kh7 B8f6 Qa2 Bfg5 Kh8 Bh6 Qad2 Nc1 Qd5 Nd3 Rd1 Qd4 Rd2 Qdb6 Qa1 Qd4 Rb1 Rc1 f1B Qg1 Qc3 Be1 Bh2 Beg3 Qca5 Nhf2 Qab4 Rcc3 Qba5 Rb6 Qab4 Rb3 Qc3 Rd6 Qc1 Rdb6 Qe1 Rc6
b1r5/1r1bkR2/n1R5/b2Q1p1b/Bn1Npb1N/1q3rQb/B3Q2P/1b2B2K b - - 0 1 illegal: No proof kernel
nk4nB/nn1Pq3/6Rp/rb1N1Q1r/1r2nRK1/3QQ1n1/2p1BB2/b1N1n3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 g4 b5 d4 e5 a4 c5 f4 Kc7 d5 b3 f5 b4 a5 h3 a6 c3 a7 h2 f6 c4 g5 c2 g6 e3 Kf3 e4+ Kg3 b2 f7 e2 g7 e1R Ra2 b3 Ra1 c3 Qd2 e3 Qd1 e2 Kf4 Qe7 Bh3 Nd7 Kg3 Ba6 Bg2 Nb6 Nf3 Bb5 Rg1 h1N+ Kg4 Ng3 Be3 c1N Bf2 c2 Nc3 b1N Ra4 b2 Qd3 Nb3 Nd2 Na5 Bf1 Nb7 Rf4 Na3 Nb3 b1N Nc1 Nd2 d6+ Kc8 Rg2 Nde4 Nd5 Rb8 Rg1 Na8 Qe3 Rd1 Rg2 e1N Be2 Rd4 Rg1 Ra4 d7+ Kd8 Rg2 Ra5 Qd3 Nc4 Qe3 Ncb6 Rg1 Nc8 Qd3 Nab6 a8Q Na7 Rg2 Nc6 Qa6 Na7 Qe3 Na8 Qf6 Nb6 Qf5 Na8 Nc3 Kc7 Rg1 Rc8 Nd5+ Kb8 Rg2 Rc4 Qd3 Qc5 Rg1 Be7 f8B Bf6 Be7 Ba1 Bf6 Rb4 B6d4 Qf8 Qe3 Ne7 g8Q Qd8 Qe8 Ng8 Qeg6 Qe7 Bc3 h6 Bf6 Rh7 Bh8 Rf7 Qc6 Rf6 Qcc3 Re6 Qcd3 Re5 Kh3 Nf1 Rg6 Nfg3 Qf7 Rg5 Qf5 Rh5+ Kg4
1r1Q2qq/r6b/1n1r1b2/1NBBRk1K/PN2R3/3n2Q1/Q2p3p/b1b1R1qn b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 g4 d5 a4 e5 f4 h5 g5 b5 c5 b3 c6 h3 c7 b2 Rh2 h4 Nc3 b1Q Bb2 e3 Kf3 b4 Be2 b3 Bc4 e4+ Ke2 d3+ Kf1 d4 Rc2 d2 Ke2 h2 Nh3 h1N Bf7+ Kf5 g6 d3+ Kf1 e2+ Kg2 e1B g7 e3 Kf3 e2 Rc1 Be7 Be8 Bf6 Nf2 h3 Na2 h2 Ne4 Nd7 Rc4 Nh6 g8Q Nf7 Qg3 Nb6 Qc2 d1R Nec3 Ra7 Nb5 Bd2 Bd4 e1B Bc6 b2 Bd5 Bc1 Bc5 Qg8 Re4 Bec3 Nb4 Be6 c8R Ne5+ Kg2 Bf7 Re8 Bg6 Qcf2 Bh7 Kh3 Qa2 Qfg2 b1Q Re6 Qab3 Qa2 Q3b2 Re7 Bg7 Kh4 Bf6+ Kh5 d2 Qf2 Rg1 Re8 Rg6 Qg3 Nd3 R8e7 Bce5 Re6 Qc3 Re8 Bb2 Re7 Qg1 Rae1 Bc1 Re8 Qb3 Re6 Ba1 Re7 Bh4 Re8 Rd6 R8e5+ Kf6 f5 Qg7 Bc6 Rb8 Ba8 Qe6 Bb7 Qh8 Bd5 Ke7 f6+ Kd7 f7 Bf6 f8Q Qeg8 Ba8 Bc3 Rd5 Bce5 Qd8+ Ke6 R4e2 Kf5 Rd4 Qe3 Bd5 Qg1 Rg4 Bd4 Re7 Bc3 Rge4 Ba1 R7e5+
b3Nk2/R3q1Rq/1bB1n1Br/2n1Kp2/3rQ1pB/6nN/5Pb1/n1qR2rQ b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 Ke2 e5 Ke3 g5 d4 b5 h4 c5 a4 f5 h5 c4 a5 g3 h6 g4 a6 c2 h7 c3 d5 b4 d6 g2 a7 b3 Rh2 b2 Be2 Qh4 Ra6 Nh6 Qd5 Nf7 Qb3 Ng5 Bf3 Bb7 Rc6 Na6 Qg8 Ne6 Be2 Nac5 Rb6 Rd8 Rh1 Ba8 Nd2 b1B Bb2 c1N Nc4 c2 Nh3 g1R d7+ Ke7 Bf1 Ne2 Ra6 Ng3 Nd6 c1N Ra4 N1b3 Bc4 Na1 Ne8 Bd3 Ra5 Bf1 Qg5+ Kf7 Qf4 Bg2 Qf3 Be7 Rh2 Kf8 Ra2 Ng5 Bf7 Nge6 Bg6 Bd6 Rh1 Bc7 Bc3 Bb6 Qf4 Rc8 d8R Qh5 Rd4 Rd8 Rd7 Qh4 Rg7 Rd4 Qf3 Rd7 Bd4 Nf4 Ng5 Rb1 Kd2 e3+ Kc3 e4 Be5 e2 Bf6 e3 Qd5 e1Q+ Kd4 e2 Bd8 Bb7 a8B Qf1 Ra7 e1Q Bf6 Qe7 Rg1 Nfe6+ Ke5 Qc4 Qe4 Rd4 Rh1 Rf1 Rg1 Qc1 Rh1 Ba6 Bc6 Bb7 Rg1 Ba8 Rh1 Rg8 h8Q Rfd1 Qh5 Rh8 Re1 Qh1 Qh2 Rh7 Qg1 Qh6 Nh3 Qh4 Qh1 Qhh6 Re3 Rg1 Rd3 Qh5 Bh4 Qhh6 Bh5 Qg6 Rd2 Rh6 Rd1 Qh7 Bg6
n2BB3/Q2Q1rrb/bq6/P1n5/4RbqQ/k1rR2p1/1qq1NpR1/n2N1K2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 Ke7 c4 Kd6 e4 Kc5 a4 b5 e5 f5 h5 d5 e6 g5 h6 d3 e7 d4 e8R d2+ Kf2 f3 h7 f4 a5 b3 Re6 Kb4 c5 d3 c6 b2 c7 Bh6 Rf6 Na6 Bg2 g3+ Kf1 f2 Rh3 g4 Bf3 Ra7 Ba8 Ne7 Ne2 Nc5 Bc6 Nd5 Rf7 Nb6 Bf3 Na8 Rd7 Ba6 c8Q Qb6 Kg2 f1R Rd8 Rg7 Qc2 d1Q Nd4 d2 Qd3 Qc2 Qcf5 d1N+ Nd2 b1B Rd5 Rc8 h8Q Rf2+ Kg1 g2 Qg6 Ne3 Qgh7 Qb2 Rf5 Nc2 Ra2 Na1 Bc6 f3 Ne2 Bf4 Qd7 Qc2 Rb2+ Ka3 Nf1 b4 Re5 b3 Ne3 Qd3 Qh5 Re8 Qa7 Bh6 Rc2+ b2 Nf4 Rf8 Qg6 Rff7 Qd6 Re2 Nd1 Re3 Qdc7 Qh7 Re2 Rc3 Be8 Bc2 Bd2 b1Q Qd7 Q1b2 Rf2 Bb1 Ne2 Qe4 Be1 Bf4 Rg3 Qa4 Qh1 Bf5 Re4 Bh7 Qh6 Qac2 Bd2 Bb8 Bg5 Bf4 Bd8 Bd3 Rf1 Ba6 Kf2 g1Q+ Ke1 Nb7 Qh4 Nc5 Rh3 Qg2 Rg1 Qg3+ Kf1 f2 Rg2 Qf3 Qh5 Qg3 Qh6 Qh4 Rhe3 g3 Rd3 Qg4 Qh4
1rb2N1n/N3br2/3q2r1/P1B2Q1Q/b1B4N/1Rp1q1pR/2K1n3/q2Bqkn1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Kd7 a4 Kd6 d4 f5 Kd2 g5 h4 c5 d5 Ke5 h5 Kd4 d6 b5 a5 f3 e5 g3 d7 g2 e6 f2 h6 b3 e7 f4 e8B b2 h7 b4 Qh5 b3 Qd1 g4 Qe2 g3 Ra4 f3 Rh2 Ne7 Rh5 Nbc6 Rh1 Ra6 Qe6 Ng6 Bd3 f1Q Qf5 f2 Rb4 Be7 Na3 b1Q Rh6 b2 Be2 Qa1 Ra4 b1B Qf3 Bc2 Rb4 Ba4 Nh3 g1N Rb3 c3+ Kc2 c4 Qf5 Qe1 Ng5 f1R Bf7 Rg8 Rh5 Nh8 Rh3 Qf8 Bb2 Ke3 Nf3 Kf2 d8N Rg6 Be6 Rb6 Bd1 Rb8 Nb5 Qf6 Bd5 Qd6 Na7 Kg2 Bc1 Rf2+ Bd2 Kf1 Nh4 Rf4 Be3 Rf3 Qg5 Rf7 Bb6 Qe3 Ne6 Qe1 Nf8 Qe3 B1f3 Qae1 Bd1 Nd4+ Kb1 Nde2 Bc5 c2+ Kb2 Rf3 Qf5 c1Q+ Ka2 c3 Bc4 Qa3+ Kb1 Qa1+ Kc2 Nf7 h8Q Rf4 Qh6 Nh8 Qhh5 Rf3 Qe5 Rf7 Qef5+
3B4/R1r1b1KB/NnQq2Np/1Pq3RR/n1rp4/qbrk1b2/4n3/5rBQ b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Kf6 f4 e5 c4 a5 b4 d5 b5 d3+ Ke3 h3 f5 d2 c5 d4+ Kf2 h2 Kg3 e3 Kh4 e4 Kh5 Ke5 c6 e2 g5 e1Q f6 a3 g6 h6 c7 e3 f7 Ke4 g7 e2 Kg6 a4 Ra2 Bg4 c8R Nd7 Rc4 Ngf6 g8Q Rh7 Rc3 Rc8 Rg3 Rc3 Qh8 Nd5 Qg8 Nc5 Bb2 Nb6 Bc1 Be7 f8B Bf3 Rc2 a2 Nh3 a1Q Qe6+ Kd3 Ra2 a3 Rg5 Nca4 Qc6 Qd5 Bg7 Qg3 Bf6 Qgd6 Bg2 Rc4 Nc3 e1R Ne4 Re3 Qg1 d1B Nc5+ Kc3 Na6 Bb3 Nf4 Q5c5 Qf1 Qb2 Ra1 a2 Qd1 Rd3 Be3 Qba3 Bg1 Re3 Qe1+ Kc2 Qf1 Rec3 Bh3 Kd2 Be6 Kc2 Bg8 Rf7 Bh7 Kd2 Re1 a1R Ree5 Rac1 Rh5 Rf8 Reg5 Rc8 Qh3 Rc7 Kg7 Rf1 Ng6 Kd3 Kg8 Bf8 Bd8 Be7 Kg7 Kd2 Bf2 Kd3 Rhg1 h1N Qh2 Ng3 Qh1 Bg4 Rg2 Ne2 Bg1 Bf3 Rf2 Bg4 Rf7 Bf3 Rg2 Bg5 Rd7 Be7 Rgg5 Rc8 Rb7 Rc7 Ra7
3Brr2/1B3b1n/b3Pr2/1qnQ1N1Q/4nb1K/2k1R2p/Q2pq1qr/R4BN1 b - - 0 1 illegal: No possible last move
nq2r3/1r1q4/n1P2N2/B1R1p2n/1bnQrqQb/N2BQ2N/2p1b1k1/2K4R b - - 0 1 illegal: No proof kernel
2B2r2/2Qbn2K/1p1q3b/rN3r2/1nN1RR1n/3qB1pR/b5Pq/1k1Q1rB1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 h4 fxe4 b5 Qc7 b6 Qh2 h5 axb6 h6 b5 Bc4 b4 Bd3 Qxh6 Bf1 Qh2 Kd2 Kf7 c4 Ke6 f4 Kf5 a4 h5 a5 g5 a6 e5 a7 d5 c5 b3 c6 d3 Ke3 d2 c7 b2 Ra6 g4 Rh6 b6 Bc4 h4 Rg6 h3 Qe2 d1Q Qf1 d4+ Kf2 d3 Ke3 g3 Rd6 d2 Bf7 Nc6 Nf3 Nge7 Qe1 Nb4 Ng1 Bh6 Ne2 Rf8 Re6 Bd7 Na3 b1B c8Q Ba2 Nc3 Qc2 Qc4 d1Q Ncb5 Qd6 Qc7 Qc4 Qd1 Qcd4+ Ke2 e3 Kf3 e2 Nc4 e1R Be3 Qc3 Rf1 Qcd3 Rf2 Rf1 Bh5 Rac8 a8R Rcd8 Ra4 Ra8 Rg6 Ra7 Rg8 Ra5 Rh8 Qh1 Bf7 h2 Bd5 Qg1 Bb7 h1R Bc8 Rh5 Rh7 Qh2 Rh8 Ke6 Kg4 Kd5+ f5 Ke4 Re2 Be8 f6 Rhf5 f7 Bd7 Qa1 Qd1 Bg1+ Kd3 Rh7 Qb1 Re4 Kc2 Rf4 e4 Rh8 Re8 f8B e3 Bg7 e2 B7d4 e1N Bde3 Nf3 Rh7 Bf8 Rh3 Bh6 Re4 Ref8 Rf4 Bg5 Kh5 Nh4 Qd4 Qb3 Qd5 Qd3 Re4 Bf6+ Kh6 Bg5+ Kh7 Kb1 Rf4 Re1 Qf3 Rc1 Qd1 Bh6 Ne5 Na6 Rae4 Nb4 Qg4 Rd1 Nc4 Rf1 Qd1+
3n1qB1/K1n2r1r/P3rn1R/RN4Q1/kbb1N2b/3QBp2/7p/B1q2rNq b - - 0 1 illegal: No possible last move
bq5n/k2rN2R/P1Bb2b1/Q4n2/nB2pr2/qQ1RR1pK/2r1q1N1/n4Q2 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 g5 h4 b5 f4 e5 Kf2 d5 Kg3 Kd7 c4 Kc7 c5 Kb7 a5 b3 f5 b4 c6+ Ka7 h5 b2 h6 e3 c7 e2 h7 e1N a6 b3 f6 d3 f7 d4 Qe2 d2 Ra2 d1Q Qh2 d3 Qd2 Qe2 Bh3 Bd6 f8Q Bb7 c8R Nh6 Rc4 Nc6 Rd4 Qb8 Raa4 Ne7 Nc3 b1B Qb2 d2 Bf1 d1R Bd2 Bg6 Na2 e4+ Qf4 Nc2 Qc3 b2 Qb3 b1N Rh4 Rc8 h8Q Na1 Qf8 Nf7 Nf3 Nc3 Qe5 Nh8 Ra3 Na4 Ne1 Rc2 Ng2 Nf5+ Kh2 g3+ Kh3 Bd5 Bb4 Bc6 Nc3 Rdd2 Ne1 g2 Qa5 g1Q Rd3 Qc5 Nd5 Qc3 Ng2 Qb2 Ra2 Qa3 Ne7 Bd5 Rh7 Bb7 Re3 Rd3 Rg3 Rf3 Rb2 Rf4 Rd3 Bc6 Rb1 Bd5 Re1 g4+ Kh2 g3+ Kh3 Qb6 Qf6 Rd8 Qf7 Rd7 Qf8 Qd2 Ree3 Qb8 Be2 Ba8 Bh5 Be8 Bf7 Qf2 Bd5 Bg6 Bc6 Qd2 Qff7 Qe2 Qfc4 Rd2 Qc1 Rc2 Qf1
2r3Q1/RQr1nQ1p/1k1q1n2/N3b1qq/P2pBr2/n1B2n1N/3R2b1/Kb5R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 g4 d5 a4 Kd7 e4 Kc7 c4 f5 Kc2 d3+ Kb2 h3 c5 d2 e5 b3 c6 h2 g5 b4 e6 f3 e7 f4 e8R f2 g6 f3 g7 Ra7 Na3 Bh3 Qc2 d1Q Bf4+ Bd6 Qd3 Ne7 g8Q Bg2 Ne2 Be5+ Nd4 Kb6 c7 Nd7 c8Q Nf6 Qc1 Rc7 Kb1 b2 Ne2 d4 Rf8 Qd2 Ng1 Qd6 Qcc4 Qe3 Ka2 b1N Nh3 b3+ Kb2 Qd2+ Qdc2 Qe3 Bd3 f1R Ra8 f2 Qcf7 Qg3 Ra2 Qg5 Qgg7 Rhc8 Bd2 Qd7 Qcc4 Qd6 Nc2 Na3 Nb4 Rd7 Bc3 Rdc7 Rg1 h1Q Nc6 Qh2 Ra7 Qh1 Bb1 Qh2 Ka1 Qh1 Rd2 b2+ Ka2 Qh2 Be4 b1B+ Ka1 Qh1 Nf4 Qhh5 Qfg8 Re1 Na5 f1N Q7f7 Nh2 Qcd5 Rf1 Nh3 Rf4 Rh1 Nf3 Qb7+
3r4/1q1n1Kp1/7q/N1b1QQB1/n1k1nbB1/r1p2rq1/P1b1N2B/RR2bQ2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 d4 Kd6 h4 Kd5 h5 b5 e3 f5 h6 c5 h7 c3 Nf3 g3+ Kg2 c2 Kh3 g2 Bb2 c1B Nh4 g1B Na3 b3 Bc3 b2 Qe1 b1N Bd3 f3 Nc4 f4+ Nf5 f2 Kg4 f1R Kh5 b4 Kg6 b3 Nb2 c4 Rh3 f3 Kf7 f2 Rh1 Qb6 Ng3 Nd7 Bf5 Ra3 Bg4 Ngf6 Ne2 Ne4 Bb4 Qh6 Bd6 Bb7 Bh2 Bb4 Qd1 Rc8 h8Q Nbc3 Qh7 Na4 Rb1 c3 Nc4 b2 Na5 Rd8 Qg6 Bd6 Qf5+ Be5 Ra1 b1Q Qd3 Bd2 Qc4+ Kd6 d5 Be1 Qd3 Kc5 d6 Ba6 Qd1 Qb7 Qc1 Nef6 e4 Bd3 Qb1 Bc2 Qd1 Nf8+ d7 Kb4 Qd3 Bf4 e5 Ne4 Qf3 Kc5 e6+ Kb4 Nc6+ Kc4 e7 Re8 d8B Nd7 Bc7 Rd8 e8Q Be3 Rb1 Bc5 Bhf4 Bh2 Bg5 Bf4 Be5 Rg1 Bc7 f1Q Qee5 Qfh3 Qf1 Rg3 Ra1 Rf3 Na5+ Kd3 Qg2 Qg3 Qh3 Bef2 Rhb1 Be1 Qf1 Qg2 Qef6 Bfd2 Bh2 Bf4 Nc6 Kc4 Q6e5 Qg3 Na5+
4R2B/1Brn2pr/Knb1P2b/2q2pr1/8/1nNk1N1Q/2qq1R2/BbNn3Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 h4 f5 c4 d5 a4 g3 e3 f3 c5 g2 a5 f2 c6 b3 c7 d3 a6 d4 h5 b2 h6 d2 h7 d3 a7 Qd5+ Kb6 Nf6 Ra5 Bd7 c8N Bc6 Ra1 Ba3 Ne7 Qc5+ Kc7 b5 Nf3 g1R Qe1 d1Q Qc3 b4 Bg2 f1N Nd5 d2 Nf4 b3 Ra2 Nbd7 Ne2 Nb6 Rh5 Rad8 a8Q Nfd7 Bh1 Rg3 Rh6 Rg5 Re6+ Ne5 Re8 Rd7+ Kb8 Rc7 Qb7 Qc2 Ka7 d1N Ka6 Nd2 Bg2 Ndc4 Bd2 Na5 Nc1 Bb4 Be1 Qd2 Bh4 Rg4 Bf6 Rg5 Na3 b1Q Nb5 b2 Qa3 Kd5 e4+ Kc4 Nc3 Ned7 e5 Nb3 e6 Qbc2 Bd4 b1B Rb2 Rf8 h8B Rf6 Qa8 Rh6 Ra2 Ba4 Qe4 Bc6 Qe1 Rh7 Qh1 Rgh5 Nd5 Ba5 Ba1 Rg5 Rb2 Bc3 Ra2 Be5 Nc3 Bf4 Nd4 Ba8 Nd3 Na5 Nf2 Qe2 Nd5 Rg4 Bf1 Qc3 Nd3 Bh6 Bg2 Rg5 Nc1 Qf2 Rd2 Qc2 Qah3 Nb3 Nc3 Qe1 Rf2 Qed2 Nf3 Be4 Nh4 Ba8 Bb7 Kd4 Bc8 Bc6 Bb7 Kc4 N1a2 Kd4 Nf3+ Kd3 Nc1+
2n1KQ1N/q1R1NP2/7r/1Bpqq1n1/1b1B3p/R1Rb1k2/rb1Qn3/2b1r2B b - - 0 1 illegal: No possible last move
Q6b/qbk1Pn1K/r1B1p3/1NR1n3/Qqq1R3/BR2Qb2/1r1nprN1/1n6 b - - 0 1 illegal: No proof kernel
1Bbqn1B1/3p1rn1/1QN1k2r/8/pN1rbnKR/RQ3P2/qQB1nq2/2b5 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 c4 e5 g4 a5 b4 h5 b5 h3 c5 e3 Kf3 e4+ Kg3 h4+ Kf4 e2 c6 e1Q c7 d3 g5 a3 g6+ Ke6 b6 a2 b7 h2 g7 a4 Be3 d2 Kg4 h3 Qc2 d1R Bd3 Na6 b8Q Rh6 Qb7 Nf6+ Kg5 Ne8+ Kf4 Ba3 Qa7 Nc5 Bc1 e3 Nf3 e2 Bd2 Bc1 Qb2 Qf1 Be4 e1N Ne5 Ned3+ Kg4 Nf4 Na3 Rb8 Be1 Rd4 Nc6 Rb3 Bb1 Rf3 Nc2 Qe2 Qab6 Qe3 Rg1 h1B N2b4 h2 Bc2 Bg2 Bd2 h1N Rd1 Ng3 Rh1 Nge2 g8B+ Kf6 Qb3 Nce6 Rh4 N6g7 Qb2 Qee7 Be1 Qf7 Bc3 Ke6 Be1 Bb7 c8Q Ba6 Qcb8 Bc8 Rb1 a1Q Q8b7 Qa2 Ra1 Qd5 Ra3 Qa2 Qb8 Rc3 Q8b7 Be4 Qb8 Rc5 f3 Rf5 Bg3 Rff6 Bh7 Qfe7 Bg8+ Rf7 Qb5 Qc5 Q8b6 Ng6 Bb8 Ngf4 Bd1 Qc2 Qd3 Qd2 Bc2 Qe1 Qe3 Qf2 Qeb3+
1qnR3k/B1P3Nr/b3q1N1/p3p1Qn/3r4/1RrQb3/nr3qQ1/1B1KN1b1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 b4 Kg7 c4 e5 g4 h5 f5 a5 g5 d5 g6 a3 c5 e3 c6 h3 b5 a2 c7 d3 b6 d4 b7 d2+ Ke2 h4 Qc2 d1R Qc4 d3+ Kf3 h2 Qe6 e2 Kf2 e1Q+ Kf3 d2 Bd3 h3 Nc3 Na6 b8Q Nb4 Na4 Ne7 Bb2 Rc1 Bb1 d1R Qb3 Rh7 f6+ Kh8 f7 Bh6 f8N Ba6 Bd4 Be3 Nc5 Rc3 Nce6 Nc8 Qb7 Rb8 Ba7 Rd4 Ng7 Qd6 Qd1 Qe6 Qd3 Qg3+ Ke2 Qh4 Qf3 Qf2+ Kd1 Rb6 Bc2 Rb5 Rb1 a1B Qd5 Na2 Nf3 Rb2 Rf1 h1Q Ne1 h2 Qg2 Qhg1 Qg5 h1N Qg2 Rb7 Rb3 Ng3 Bb1 Nh5 Qg5 Qb2 Rf7 Qgf2 Rd7 Rb6 Rd8 Rb8 Ra3 Qb5 Rb3 Bb2 Qg2 Ba3 Qg5 Bc5 Qe7 Qg2 Ra3 Bf4 Nf5 Rd5 Qh4 Bg1 g7+ Kg8 Qg4 Rd4 Qf3 Qf2 Qg2 Rc2 Rc3 Be3 Ra3 Qb7 Rc3 Qa8 Ra3 Rbb2 Rb3 Kf7 g8Q+ Kf6 Ng6 Rc3 Nf8 Qb8 Q8g5+ Kf7 Ng7 Kg8 Qh2 Kh8 Qhg3 Qef6 Qg2 Qe6 Ng6+
7k/bp4q1/Q2rBq2/rpRPN3/n1qN2r1/1nB1N1Q1/1rbb4/3Q1nRK b - - 0 1 legal: proof: f4 d5 h4 g5 b4 gxh4 c4 dxc4 f5 a6 b5 axb5 f6 exf6 Rh2 f5 Rh1 f4 Kf2 h5 g4 f5 Kg2 Kf7 a4 Kg7 e4 c5 d4 f3+ Kh2 h3 d5 f2 g5 f4 g6 c3 e5 c2 a5 h4 a6 c4 e6 c3 a7 f3 e7 Nc6 e8Q Nge7 Qe1 Rg8 Bh6+ Kh8 Ne2 c1Q Ng3 c2 Qe3 Qb2 Qe1 c1B Ra3 Na5 Bf4 Nb3 Ra6 Bf5 Bg2 f1Q Qe2 f2 Bd2 Qg7 Na3 Bc2 Rc6 Nc8 Rg1 Qdf6 Qd1 Nb6 Qe5 Bc5 Ne2 Na4 Nd4 Qc4 Qg3 f1N+ Kh1 h2 Bc3 Bd2 Bh3 Rad8 a8Q Rd6 Qa5 Ba7 Be6 Ra8 Qa6 Rg8 Kg2 h1R Rc5 Rh3 Qh2 Rf3 Kh1 h3 Qf2 h2 Qg3 Qe2 Nc4 Rf2 Ne3 Qc4 Bg4 Ra8 Be6 Rf4 Qdf3 Rg4 Qd1 Qd7 Kg2 h1R g7+ Kh7 g8N Qdg7 Ne7 Kh8 Nec6 Rh7 Ne5 Rh3 Rh1 Rh2+ Kg1 Bc1 Nd7 Bg6 Bf5 Bb8 Qb6 Ra5 Be6 Ba7 Qa6 Bh7 Ne5 Rb2 Ndc2 Bd2 Nd4 Qff8 Kg2 Qff6 Rg1 Bc2 Kh1
1n4b1/p2NqrQ1/8/1RP1pN2/2k1nRb1/1NB1qBn1/1r1b1QK1/2q1Qr1n b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 Kf2 Ke6 g4 Kd5 b4 h5 b5 e5 g5 d3 g6 a3 c3 d2 b6 h3 f5 a2 f6 e3+ Kg3 h2 f7 e2 b7 e1Q+ Kh3 h4 g7 Bb4 f8Q Rh7 Qf5 Nf6 g8Q+ Rf7 Qf4 Qe7 Qdg4 d1B Ne2 Ne4 Qe3 Bb3 Q4g7 Kc4 Q8f8 d5+ Kg2 d4 Bd2 d3 Nd4 Bg4 Be2 Ba5 Rg1 h1N Rf1 Nhg3 Bf3 Qc1 Be1 d2 Nf5 d1Q Rf2 Qd4 Nd2+ Kb5 Rb1 a1R c4+ Kb4 c5 h3+ Kg1 h2+ Kg2 h1N Qe2 Kc3 Qf1 Bc4 Rb5 Qe3 Qe2 Ra2 Nb3+ Rd2 Rf1 Be6 Qf2 Kc4 Qd8 Ra2 Qd1 Rb2 Bc3 Bd5 Qe1 Bb4 Bd4 Bd2 Bc3 Na6 Ba5 Raf8 b8N Be6 Nd7 Nb8 Bb4 Rf6 Qh7 Bg8 Qg7 R8f7 Bc3 Rg6 Qg1 Bh3+ Kh2 Nh5 Bg2 Rg3 Rf4 Bg4 Qgf2 Rf3 Qh4 Rf1 Qhf2 N5g3 Bf3 Bh5 Kh3 Bg4+ Kg2
N1r1n3/2k1P2r/4Kb2/BQr2Rrn/NR1pQ3/1p1R3q/2B4b/1n2rNrb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 f5 c4 b5 a4 g5 h5 f3 Kg3 f2 e5 b3 h6 b4 a5 f4+ Kh2 g3+ Kh3 g2 Kg4 f3 Kf5 g4 a6 d3 e6+ Kc7 h7 b2 a7 d2 c5 d4 c6 b3 Ra3 g3 Qe2 d1R Qd3 Bb7 e7 Bg7 Qa6 Nf6 Ra5 Ne8 Nc3 b1N Rh3 Bf6 Qb5 Nd7 Bd2 Qc8 Ke6 Rc1 Na4 Rc5 Bd3 f1R Ne2 g1B Bc2 g2 Ng3 f2 Bc3 Rd1 Nf1 Bh2 Rd3 g1R Bd2 Rhg8 h8R R8g5 Rf8 Rb8 a8Q Rc1 Ra6 Rh1 Rb6 Re1+ Ne3 f1R Ba5 Rfg1 Rf7 Bhe5 Nf1 Rh7 Rf8 Bh8 Rf5 Bhg7 Qc4 Bgf6 Qd5 Bd6+ Qe4 Bh2 Qa6 Ba8 Qc4 Bg7 Qb5 Ndf6+ Kf7 Nh5 Rb7+ Kd6 c7 Qd7 Rb6+ Bc6 c8N+ Kc7 Rf4 Qh3 Rf5 Bb7 Ke6 Bf6 Qc4 Ra8 Rb4+ Kb8 Ncb6 Kc7 Qb5 Rc8 Qe2 Bg2 Qe4 Bh1 Na8#
Kn2b3/B2rp3/3B3Q/1rpnR1Q1/1b3B1N/bRq1Qbr1/1N1kP1b1/2b4n b - - 0 1 illegal: No possible last move
3rr1b1/Q2np1K1/b2P1N1B/2bQ1qN1/B1B2Rr1/R2n1n2/p1Nbk3/5b1b b - - 0 1 illegal: No proof kernel
bn1br2n/2Np2Kn/r7/QBr1Rbp1/1q5B/2k1R3/1r3QP1/R2rN1Qr b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 h4 cxd4 b5 Qxh4+ Kd2 Qh2 b6 axb6 Ke1 b5 Bb2 b4 Ba3 Ra6 Bc1 Ra8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kg5 f5 e4 b5 a4 h5 Kg6 d3 c4 Kd4 c5 d2 a5 h4 c6 b3 c7 h3 e5 b4 e6 b2 e7 f3 e8R b3 a6 f2 a7 f4 Bb5 f1R Qe1 d1R Bc6 f3 Ba4 f2 Bh6 Bb7 c8Q Be7 Nc3 b1B+ Kf7 g5 Bg7+ Nf6 Qe2 b2 Bh6 Qd6 Bg7 h2 Qf3 Bf5 Qfc6 b1R Bb5 Bd8 Qf3 Rb2 Nd5 Qb4 Re5 Re8 Qc1 Nh7 Nc7 Rfe1 Qe2 f1N Qf2+ Ne3 Bh8 Ree2 Kg7 Rec2 Nf3+ Kc3 Re1 h1R Re2 Nc4 Ne1 Nd6 R2e4 Nf7 Re3+ Kd4 Qb1 Rc5 Qc1 Re6 Qb1 Ra6 Qc1 Nc6 Qb1 Rc8 a8Q Nb8 Qa7 Ba8 Qa2 Rb6 Q7a5 Ra6 Qg1 Rb3 Qaf2 Rbb1 Kg8 Rb2 Bf6 Nh8 Kg7 Rcc6 Be7 Re6 Bd6 Re8 Nd5 Rc5 Nc7 Bd3 Rd5+ Kc3 Bg3 Ree6 Bh4 Re8 Re2 Bc2 Rde5 Bf5 R2e3+
bQ5b/2p5/1np4K/1nBP1Nr1/4b2n/2r4B/QB1qQ1nr/nkNn1RR1 b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 a5 b4 axb4 c5 h5 c6 hxg4 Bg2 dxc6 Bh3 Kd7 Bf1 Ke8 Kf2 Ke7 a4 Kf6 h4 Kf5 d4 Ke4 h5 b5 a5 f5 a6 g5 h6 b3 h7 f3 Kg3 f2 a7 b2 e3 b4 Rh4 f4+ Kg2 b3 Nh3 f3+ Kg3 Na6 Bb5 f1N+ Kf2 Bb7 Ra4 Nb4 Be2 Ne7 Ra3 Nc8 Bb5 Bg7 Ra5 Nc2 Nf4 g3+ Kg1 f2+ Kg2 g4 Qe1 Na1 Qe2 Nb6 Na3 b1B Nd3 b2 Nc4 Bc2 Rh2 b1N Rh1 Na3 Rg1 Qd5 Ba6 Nb5 Bb2 Rae8 Ra3 Ba8 Bc8 Ref8 Nc1 Rf3 Ra5 Qd6 Ba3 Qb4 d5 Qd2 Bc5 Bb1 Qd1 Be5 Qa4 Bf6 Qa2 Bd4 Ne2 Kd3 e4 Bc2 e5 Ne3+ Kh1 f1N e6 Be5 e7 Nd1 e8Q Nfe3 Nd6 Ng2 Nc1+ Kc3 Bd7 Be4 Nf5 Bf6 Qb8 Bd4 Qc4+ Kb2 Qe2 Kb1 Bc8 Rc3 Ra2 Rg8 h8B Rg5 Ra4 Bf6 Rd4 Be5 Rd3 Bd4 Rf3 Be5 Bg7 Bf6 Rff1 Bd4 Bh6 Bh8 Bg7 Nge3+ Rg2 Rh5+ Kg1 Rd3 Ne7 Rh2 Ng8 Bb7 a8Q Rb3 Bb2 Rc3 Qa4 Ba8 Ne7 Rh7 Rh2 g2 Rh5 Rh6 Kh2 g1N Kg3 Nf3 Kf4 g3 Rg5 Rh2 Bh3 g2 Nf5 g1R Rg4 Nh4 Kg5 Rgg2 Kh6 Rg3 Rgf4 Rg4 Rg1 Rg5 Rff1 Neg2 Qa2+
6q1/q1bqN2n/R2B1k2/3Q4/R2Rp1bQ/P1Kp1n1B/rr2q2q/1Q1q1q1N b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 b5 c4 d5 g4 e5 g5 h5 f5 e3+ Kc2 e4 c5 d3+ Kb2 d4 c6 b3 c7 b4 g6+ Kf6 g7 d2 Rh3 d3 Be2 Nc6 Rg3 h3 Rg4 h2 Qc2 d1Q Na3 h1Q Rg5 h4 Bf1 e2 Rg2 e1Q Rg5 h3 Bf4 h2 Bd6 Qd7 Qb1 Qg2+ Nc2 h1Q Nh3 Ne5 Nf2 Nf3 Nd4 Rh2 Nc6 Ra6 Ne7 Qee2+ Qc2 Qhg1 Nh1 Qa7 Rh5 Qg6 Bh3 Rg2 Rh7 Qdg1 Rh6 Qh2 Kb1 b2 Qc1 Bb7 c8Q Rb6 Qd8 Bc8 a3 Rb5 Ka2 Rb8 Kb3 b1Q+ Kc4 b3 Kc3 b2 Qc2 Qc1 Rb1 Qcg1 Rc1 Qgf1 Qb1 Kg5 Rc2 Nf6 g8Q Nh7 f6 Qg7 Qga2 Qg8 f7 Rb4 Qc4 Bg7+ Qd4 Be5 f8R Bf4 Qf2 Rb5 Qa5 Qfd1 Rd8 Bg3 Bb4 Bc7 Ra6 Qdf1 Bd6 Kf6 Rc1 Rb8 Qd5 Qfd1 Qba2 b1Q Rc2 Qbc1 Qb1 Qdf1 Qg3 Qcd1 Rb2 Rb6 Rb4 Rb7 Rd4 Rb2 Raa4 Qde8 Qf2 Bg4 Ra8 Qd7 Qh4+ Qg5 Re8 Rb6 Bc5 Qe3 Rb8 Ra2 Bd6 Rbb2 Rb6 Qee2 Qf2 Qg6 Rba6 Qg8 Qh4+
1nb2Q2/2QN2QB/2b2q1r/2Bn4/k5bn/N1nR3b/pR2p1PK/1nbr2N1 b - - 0 1 illegal: No proof kernel
1br2kQn/B1Nb4/1nrq3n/2B1RBR1/4PQp1/K2nb1Rp/4n3/1b2bN2 b - - 0 1 illegal: No proof kernel
bQ1R4/4n3/Q1B1r1qr/P2k3r/3p1rNN/B1n1p2r/1B1b4/2bRbNKb b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 Ke6 Kf2 g5 c4 d5 h4 b5 c5 d3 a5 d2 h5 g3+ Kg2 e3 h6 g4 h7 b3 c6 d4 f5+ Kd5 f6 e5 f7 b4 c7 b2 Bd3 e2 Ra3 e1B Rc3 e4 Bc2 b3 Rh2 Ne7 Rf3 Nbc6 Rf4 Bh6 f8N Bb7 c8Q Qe8 Rf6 Qg6 Qe2 d1B Ne6 Ra6 Qf1 Nb4 Rf7 Ba8 Bd3 Na2 Nh3 Nc3 Nf8 Re6 Bb5 Bf3+ Kg1 g2 Nd2 b1R Qb8 b2 Qe2 Bg5 Nf1 Bgd2 Rg7 Ra1 Be8 b1R Bb2 Ra3 Rh1 Rb3 Rg8 Rb5 Bc1 R1b3 Bb2 Rc5 Qa6 Rbb6 Kh2 g1R Bd7 Rbc6 Nf2 g3+ Kh3 g2 Kh2 Bc1 Ng4 e3 Qf4 Bed2 Qb8 Qd3 Ng6 Rb5 N6e5 Qg6 Rd8 Rf8 h8B Rf4 Bg7 Rcd6 Ng3 Rf1 Bf8 g1B+ Kh3 Rf2 Nf1 Rh2+ Kg3 Be4 Nf3 Rh3+ Kg2 Bf2 Rg1 Bh4 Rh1 Bhe1 Kg1 Ref6 Nh4 Rde6 Rh2 Bh1 Rf2 Nc6 Bfa3 Ne7 Rh2 Qd3 Re2 Rh6 Rg2 Qg6 Re2 Bg3 Re1 Rc5 Rd1 Bge1 Re8 Ke4 Rh8 Rch5 Rd8 Kd5 Bc6#
Q1bQN3/1B1R1n2/1n1Rrn2/rn3N1N/2n1bk2/3qr1pK/1b1pPrQ1/4B3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 c4 Ke5 a4 d5 h4 b5 a5 f5 a6 g5 a7 b3 c5 d3 c6 f3+ Kh2 b2 c7 d4 h5 d2 h6 f4 h7 d3 Qb3 d1N Ra5 d2 Ra1 b4 Qa2 b3 Nc3 b1N Bg2 b2 Bh3 f2 Na4 f1R Qb3 f3 Bg2 f2 Qb7 Kf4 Bh3 g3+ Kg2 g4 Ra3 Bg7 Nf3 Qd3 Nd4 Nbc3 Nc5 b1B Bb2 Nd7 Ra6 Nb6 Nf5 Nb5 Bf6 Nb2 Bh4 Nf6 Qd5 Re8 h8Q Re6 Qhd8 Re3 Qb7 N2c4 Ne6+ Ke5 Rh2 Rh1 Qc6 f1R Qb7 Bh8 Neg7 Kf4 Qbd5 Rff3 Qb7 Rhf1 Rh1 Re6 Rg1 Bd7 c8N Rfe3 Ncd6 Bc8 Nde8 Bc2 Kh1 g2+ Kh2 Rff3 Be1 Rf2 Rf1 g1N+ Bg2 Nh3 Rh1 Na4 Rd6 Ng5 Qd5 Nab6 Qc6 Rb8 a8Q Nf7 Rd7 g3+ Kh3 Rb7 Rh2 Ra7 Bh1 Rd6 Qg2 Rde6 Qe7 Ng8 Qg1 Na4 Kh4 Rb6 Bb7 Qb3 Qd8 Be4 Qg2 Qd3 Rh1 Ra5 Nh5+ Ke5 Rh3 Rf6 Rh2 Nab6 Rh1 Rc6 Kg4 Bf6 Nhg7 Rd6 Rh7 Rc6 Kh3 Kf4 Rh6 Bb2 Rhd6 Nf6 Rd4 Re6 R4d5 Bc1 R5d6 Bb2 Nh5+
k3r3/q1b1R2r/nr6/4qB2/2rNQ1rn/nR3p1P/KNbB2p1/Br4RQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 d4 Kc6 Kd2 f5 Kc2 b5 Kb2 Kb7 e4 c5 d5 g5 d6 b3 e5 g3 h3 f3 e6 c3+ Ka3 c2 e7 f2 e8Q c4 a5 b4+ Kb2 f4 d7 g2 Be2 f1R Qd3 g4 Qg3 f3 Qh2 g3 Bf4 c1R Qg6 Rh7 Qh5 Qe7 d8B Bf5 Ra4 c3+ Ka1 c2 Ra3 b2+ Ka2 Nh6 Qh4 Na6 Rb3 Qe5 Rc3 Bd6 Rb3 Bc7 Nc3 b1R Bdg5 Re8 Bc4 Ka8 Nge2 g1Q Nd4 g2 Bf6 Bg6 Bd3 Nf5 Qe1 Nh4 Bf5 Rd1 Qe2 c1R Na4 Rc4 Nb2 Rde1 Qd3 Re4 Bd2 Rg4 Qc2 Rfc1 Qe4+ Rc6 Bg7 Rc4 Bh8 Qe3 Rg1 Qf2 Qd3 Rb6 Qh1 Nb8 a6 Qfe3 a7 Na6 Be6 Be4 Qe2 Bc2 Bf6 Q3e4 Bd7 Qb7 Bf5 Qb8 Qe4+ Qb7 Rd3 b3+ Ka3 Qa5+ Na4 b2 Be6 Rcc6 Nb5 Bf4 Bf5 Rc1 Rd1 b1N+ Ka2 Rc4 Ba1 Na3 Nb2 Rb1 Rg1 Bb8 Nd4 Qe5 Rb3 Bd6 Qd3 Qb8 Qe2 Kb7 a8R Qc7 Rd8 Qf7 Rd7+ Ka8 Rb7 Qc7 Qe1 Qb8 Qe3 Qa7 Re7 Bc7 Qe4+
3RN2r/4Nb1n/b5bR/1b3q2/b1nB4/2Prb1p1/Qpq1k1n1/1BRQ2QK b - - 0 1 illegal: No possible last move
2RR3K/2bQ1b2/BNN3NB/1n2rnBr/n2Q1bnp/2p1P1r1/1k3r2/3r3q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 f5 a4 b5 d3 f3 a5 h3 g5 f2 g6 h2 a6 h4 a7 b3 d4+ Kb4 d5 c5 d6 f4 d7 c3 g7 c2 Ke6 c4 Kf7 f3 Qd4 b2 Na3 Kb3 Nb1 c3 Bh3 f1R Qf2 b4 Kg6 Ne7+ Kf6 Nf5+ Kg6 Rd1 g8N Na6 Bf1 Bd6 Qg3 f2 Be3 c1B Bh3 f1R Qf4 Nc5 Qd4 Bc7 Nf3 Rh5 Bh6 Na4 Kh7 B1f4 e3 Rf2 Na3 b1R Ne7 Kb2 Ne5 b3 N7g6 Qf8 d8B Be6 Nc6 Bf7 Rf1 h1N Bg5 Re8 a8Q Re5 Qaa7 Qa8 Rg1 Rbc1 Bf1 Rcc2 Qb7 Rf3 Rg4 Rg3 Ba6 Nf2 Qc8 Qb7 Kh8 Rcd2 Qcd7 Re2 Nb4 Qh1 Nc6 Rc2 Nb5 Re2 Nba7 Rc2 Nc8 Rcd2 Be7 Rc2 Rg5 Ng4 Nb6 Rf2 Rb1+ Ka2 Rc1 b2 Rc2 Ka1 Rd2 b1N Rd3 Kb2 Bf6 Ng7 Rf5 Na3 Bg5 Nb5 Rf6 Bb3 Rf8 Bf7 Rc8 Nf5 Qc5 Qh2 Rd6 Qg2 Qd4 Qd5 Qe8 Qf3 Rdd8 Qh1 Qed7
2Q3K1/b2N1nbN/bBR2bQq/4nR1n/2rP2pn/2pB3r/nQR5/6rk b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kd5 h5 Ke4 a5 g5 e3 b5 a6 c5 a7 f5 h6 g3+ Ke2 g2 h7 g4 Qe1 f3+ Kf2 f4 Rh5 c3 Na3 c4 Rd5 b3 Be2 c2 Rb1 b4 Rg5 b2 Rg6 b3 Qf1 Qd6 Qd1 Bg7 Nh3 g1B+ Ke1 f2+ Kf1 Nh6 Kg2 f1R Ra1 b1N Ra2 Qa6 Rc6 f3+ Kg3 b2 Kh4 f2 Kg5 Nd7 Kg6 Nc3 Qe1 b1N Bd3+ Kf3 e4 Kg2 e5 Rb8 a8R Nf7 e6 Rb4 e7 Kh1 e8Q Bb7 Bb2 c1B Q1e2 Bc8 Ba1 Bb2 Ng5 Qb6 Qg8 Ba6 Rf8 Rc1 Qe8 f1N Qc8 Bf6 Qg7 Ng3 Qh6+ Nh5 Qg7 Rg8 h8Q Nde5+ Kh7 Bd4 Qg6 Rg1 Rc5 Qe6 Rc6 Ba7 Qhg7 Nb5 Qh8 Nd4 Qhg7 Bc3 Rc2 Ndf3 Qh8 Bcd4 Bc3 Ra4 Ba5 Nh4 Bb6 Nc3 Qhg7 Na2 Qh8 Nd6 Rf7 Bg7 Rf5 c3 Nc4 Rd8 Qf8 Ndf7 Qb4 Rd6 Kg8 Rd7 Qb2 Rd6 Qh7 Qh6 Qg6 Rd5 Nh7 Rda5 Nd6 Rc4 Ne4 Rd5 Nc5 Rd6 Rf1 Rf6 Nd7 Rf3 Rf2 Rh3 Rf4 Bc5 Rf5 Be7 Be2 Bd8 d4 Bdf6 Bd3
n3n3/BnnkR3/5nBR/r1Q2qpp/1rR2Nq1/b2N1Q2/P2qNn2/3b1K2 b - - 0 1 illegal: No proof kernel
4b1QK/2r1bb1n/bbBRbQ2/n1N1p3/1P1rq2p/Br1q2N1/6Q1/R1B3k1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 e5 c3 a5 g5 d3+ Ke3 a3 g6 a2 g7 h3 f6 a4 f7 h4 Na3 h2 Bd2 Nf6 g8Q Be7 Be2 Ba6 Qg3 Nh7 f8B Ra7 Nb1 a3 Qc2 Nc6 Bf3 Rc7 Be1 d2 Qg6 d1B Qh6 Na5 Qc1 Ba4 Ne2 d6 Qg6 Be8 Rf1 h1B Bh5 Kc4 Qe6+ d5 Qd2 Bf7 Qf6 d4+ Kf2 d3 Ke3 Bg2 Ng3 Bh3 Qg2 d2 Bf3 d1B Bh6 Bhe6 Bd2 Ba4 Rd1 Bae8 Bc1 Rg8 Bf4 Rg4 Nd2+ Kd5 Nb3+ Kc4 Nc5 Qd3+ Kf2 Kd5 c4+ Kd4 Be2 e3+ Kf3 Bg6 Rd2 Bgf7 Bd1 e2+ Be3+ Kc3 Ba4 Rd4 Bc6 e1B Rd1 Bf2 Rd2 Qb1 Rd3+ Kc2 Bed2 Kd1 Bb2 Be3 Bdc1+ Ke1 Rd2 Rd3 Ke4 Rb3+ Kf3 Qc2 Rd6 Qd2 Ke4 Bd4 Nb7 Bb6 c5 Qc3 Bb5 Qd2 c6 Qc3 Nc5 Qd2 Rb1 a1Q Ba4 a2 Ba3 Qac3 Ra1 Qf2 Bb5 Qg1 Ba4 Qh1 Bb5 Bc4 Kf5 Qd3+ Qe4+ Kf2 Ba4 Rd7 c7 Kg1 c8Q Rc7 Bc6 Qg2 Rb1 a1R Qb8 Ra2 Ra1 Rd2 Qa8 Qd4 Qg4 Qdd5 Qg8 Rd4 Qb7 Nf8 Kg5 Nh7+ Kh6 Qge4 Kg7 Qd3 Kh8 Q5e4 Qc8 Bcd5 Qh3 Bde6 Qg2+
3q3N/2q1BK2/b1r4q/RqqPN1B1/1N2nbQp/1Qp5/r1q3n1/1Bk1n2R b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 a4 e5+ Kh5 b5 f4 c5 g4 e3 f5 e4 a5 h3 d3 h2 f6 b3 g5 c3 a6 c4 a7 e2 g6 e1N f7 b2 g7 b4 Qa4 c2 Bg2 b3 Nd2 Kc3 d4 b1Q d5 e3 Qa3 e2 Qd6 b2 Qd7 Ba6 Nb3 Nc6 Bf4 c1Q Bb8 Kc2 Nd2 Nd4 Bc7 Ndf3 Ne4 Nh4 Bf4 Bd6 Bg5 Bf4 f8B Nf6+ Kh6 c3 g8N Qe3 Kg7 h5 Be7 Kc1 Qg4 Rh6 Nf2 Ne4 Ra5 Rc6 Nf3 Qc5 Kf7 Qc2 Ne5 b1Q Nh6 Qbb5 Bh3 Ng2 Nfd3+ Kd1 Nb4 Kc1 Qh4 Qc7 Bf5 Qd8 Qg4 h4 Rg1 h1Q Rf1 Qh2 Rh1 Rac8 a8Q Qg3 Qa7 Ra8 Qd7 Be3 Qd6 Qb3 Bh7 Qd4 Ra3 Nc5 Kf6 Bb7 Bb1 Qc2 Nf7 Ne4+ Ke6 Ra4 Bgf6 Ba6 Nf3 Qa7 Nh8 Qab6 Ng1 Nd3 Kf7 e1Q Nf3 Qa7 Qc5 Qgc7 Qc4 Qac5 Rh2 Qed2 Qb3 Nde1 Rh1 Bh6 Ra1 Qdf4 Ra2 Qfd6 Ra1 Bf4 Bg5 Qh6 Ne5 Ra2 Qd7 Rb2 Ra5 Ra2 Qg4
1n3nR1/1nbB2NR/1N1BQ1r1/3p1qb1/2Q4r/n2r1k2/Pbb3pN/4KnB1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 Kf7 h4 Kg6 c4 Kh5 c5 e5 f5 d5 f6 g5 c6 b5 f7 b3 c7 b2 Kd2 b4 Be2 b3 Nf3 d3 Ne1 e3+ Kc3 e4 Ng2 d2 Qf1 d1R Rg1 Ba3 f8Q Bf5 c8N Qd7 Nd6 Ra6 Nc4 Nf6 Ne5 Nh7 Bd2 Rg6 Qc8 Nf8 Bf3 e2 Ne3 e1N Qb7 Nd3 Qe2 Nc5 Ng2 e3 Qba6 Nb7 Qe6 Bc2 Qf1 e2 Be3 e1B+ Nd2 Bg3 Ndc4 Bh2 Be4 g3 Nb6 g4 Qc4 Be7 Bf4 Bg5 Ne3 g2 Nf5 g3 Ng4 Rh7 Rh1 g1B Bd6 g2 Rb1 Rd2 Re1 Rd4 Re3 Be5 Rg3 B1e3 Bf3 Bd8 Be2 Bc7 Rhh3 Bg5 Bf3 Rf4+ Kd2 b1N+ Ke1 b2 Rh1 Na3 Bd1 Bb1 Ba4 Rd4 Bc6 Qf7 Bd7 Bc2 Rh2 b1N Rhh3 Rf6 Rh1 Rd3 Ng7+ Kg6 Rh2 Bb2 Rhh3 Rh8 Rh1 Nd2 h5+ Kh7 h6 Kg6 h7 Nf1 Qe5 Qe6 Rh4 Qf5 Qe6 Bgc1 Rh1 Kg5 Rhh3 Rh6 Rh2 Rg8 h8B Rg6 Rh7 Rh6 Nh5 Rgg6 Bd4 Be3 Ng7 Rh4 Ne5+ Kf4 Rg5 Bec1 Ng4+ Kf3 Bg1 Rf6 Ne8 Be3 Rg8 Rg6 Ng7 Bg5 Nh2+
2n2b1r/5R1N/b3K3/1p2R2p/1rN1rq1k/2n1qb1B/Q1rBB1PR/2r1rQ2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Kg4 b5 c4 d5+ Kf3 Kg5 e4 f5 a4 h5 a5 h3 a6 d3 a7 b3 c5 h2 c6 d4 c7 b2 e5 d2 e6 d3 e7 Kh4 e8R Ne7 Ra2 Ba6 c8Q Nd5 Ra4 Nd7 Rd4 Qb6 Rc4 Nc3 Qe2 d1R Rd8 d2 Qb8 Re1 Rc7 d1B Na3 b1R Re8 Rb4 Nc4 Qc5 Re6 Nb6 Rf7 Nc8 Nh3 Qe7 Bd2 Qe8 Rg1 h1R Re5 Rh2 Rh1 Qe6 Kf2 f3 Ke3 f4+ Kd4 f2 Ng5 f3 Nh7 Rh3 Qd3 Qe8 Be2 f1Q Qb7 f2 Qd5 Rh2 Bg4 Bf3 Bh3 Rb8 a8B Rb6 Qc2 Rc6 Qa2 Qe6 Qc5 Qh6 Qa7 Qe2 Qd7 f1R Qf5 Rc1 Bb7 Rfe1 Qfb1 Rc7 Be4 Rc2 Bd3 Re7 Kc5 Qf4 Qd1 Qee4 Qe2 Rec1 Qf1 Re1 Be2 Rec1 Rd5 Qee3+ Kc6 Re4 Kd7 Re1 Re5 Rbb1 Ke6 Rbc1 Bf5 Rh3 Rg1 Rg3 Bh3 Rg4 Rh1 Qh2 Nb6 Rb4 Nc4 Re4 Na3 Qg3 Rh2 Qgf4 Nc4
4B3/1n1nB3/4bq1Q/p1NR1P2/1bqb1rR1/n2kp1NK/1b2rb2/1bR2NQ1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 b4 Kf7 h4 Ke6 f4 Kd5 Kf2 g5 Kg3 a5 h5 e5 f5 d3 c4+ Kd4 b5 d5 h6 e3 b6 e4 c5 d2 b7 e2 h7 e1N c6 a3 c7 a2 Nh3 Qf6 Qf3 d1B Bb5 Nd7 b8N Nc5 Bd2 Bc2 Qb3 Be6 c8R Nb7 Rd8 Bb4 Kh2 g3+ Kg1 g4 Kf1 g2+ Kf2 g1B+ Kg3 Bf2+ Kf4 g3 Kg4 g2 Bf4 g1B Nc3 Bb1 Bd6 Nc2 Be8 Kd3 Na6 d4 Be7 Na3 Ng5 Rc8 Qd5 Rc4 Ne2 Rc2 Ng3 Re2 Rh3 e3 Bc5 Bh2 Nf1 Be5 Qh1 Bc2 Bd6 Qf8 Rh2 Kc4 Rh3 d3 Rg3 d2 Re1 a1B Ra8 d1Q Ne4 Bed4 Nac5 Nf6+ Kh3 Qd3 Rc1 Bab2 Be7 Qb3 Ra6 Nd7 Rd6 Qf6 Qg1 Rg8 h8Q Rg4 Qh5 Rf4 Rg4 Qc3 Qh4 Bb1 Qh6 Qc2 Neg3 Kc3 Nce4+ Kd3 Rd5 Qc4 Nc5+
1qRN1N1q/1q1B3Q/2nPp2r/8/q1q1b1KR/1rn1bB2/2kr1p2/2BR1qQ1 b - - 0 1 illegal: No proof kernel
2b3bk/Q2nN2N/BrP2bB1/rbn1RN1r/1q2b3/4r1R1/p1Q2p1B/2K1n3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 d5 g4 h5 c4 a5 b4 f5 e4 Kf7 g5 Kg7 c5 a3 c6 d3 g6 d4 b5 a4 b6 h3 b7 f3 e5 a2 e6 a3 e7 h2 e8B f4 Qa4 h4 Be2 h3 Bf1 f2 Ne2 f3 Qc4 Qb6 Bg2 f1B Rg1 h1B Bf7 h2 Nbc3 f2 Nf4 Ra5 Na4 Na6 b8Q Nc5 Be8 Be7 Qc7 Nf6 Ne2 Rh3 Qf7+ Kh8 Bd5 Nfd7 Ng3 Be4 Qf5 h1R Qa7 Qb4+ Nc3 Bf6 Bc4 Be2 Rb1 a1N Ba6 a2 Rg2 Nc2 g7+ Kg8 Ra1 Ne1 Bg6 Bf1 Kd1 d2 Nd5 Bb5 Rb1 Rh5 Rb3 R1h3 Re3 Bb1 Re5 Be4 Ne2 Re3 Rg3 Ned3 Kc2 d1R Bb2 Rf1 Ba1 Ne1+ Kc1 d3 Nd4 Bg2 Qe4 Rfh1 Nf5 d2+ Kd1 R1h3 Qc2 Be4 Bd4 Rb3 Be3 Rb2 Bf4 Rb3 Rf3 Re3 Bh2 Rb3 Rg3 Rb2 Rg1 Re3 Rg3 Rbb3 Bf7+ Kh7 g8N Kh8 Bg6 Be7 Nd4 Ba4 Ngf6 Qc4 Qc7 Rb6 Qa7 Qb4 Qb3 Bb5 Nh7 Bf6 Ne7 Ned3 Kc2 Ne1+ Kb2 d1B Kc1 Bg4 Qa4 Be6 Qc2 Bg8 Ndf5
2Q2R2/2N2K1n/2p1Rn1q/Q1BPN1Qr/n1n1b3/q3b1p1/n2k2nr/q2B2B1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 a4 Kf5 d4 Ke4 a5 b5 e3 g5 h5 f5 a6 c3 h6 f3 Kg3 c2 h7 f2 d5 f4+ Kh2 f3 Kg3 c6 a7 b3 Rh2 b4 Ne2 b2 Ra2 b3 Ng1 Qf6 Nh3 Bh6 Na3 b1N Qd2 b2 Qa5 Nd7 Rh1 Nf8 Ra1 Bf5 Qc7 Nc3 Be2 b1N Qc8 f1Q Nc4 f2 Nf4 Nd2 Ne6 Na4 Ba3 c1N Bd1 Kd3 e4 Na2 e5 Be4 Nc7 Qe1 e6 Qe3+ Bf3 Kc3 Ne5 Nc4 e7 Kd2 Bc5 Qa3 e8Q Qd6 Qcd8 Nf6 Rae1 f1Q Re3 Qa1 Rf1 Rb8 a8Q Rb2 Bd1 Rc2 Kh2 g3+ Kh3 g4+ Kh4 g2 Qee7 g1N Qdc8 g3 Qa5+ N4c3 Qg7 Nh3 Qg5 Nf4 Ree1 Ng8 Re3 Ng2+ Kh5 Qf6 Qgg4 Bf4 Qg5 Qe6 Rff3 Nf6+ Kh6 Qh3+ Kg7 Qh6+ Kf7 Rb2 Re1 Be3 Rff1 Rg8 h8B N8h7 Bg7 Rh8 Rf5 Bf4 Bg1 Be3 Bf8 Rc2 Bc5 Rb2 Qaa6 Na4 Qa5+ Kc1 Ng6 Re8 Ba7 Bd2 Qe6 Bf3 Qa6 Nh4 Bac5 Ng4 Qec8 Re5 Qa5 Bh1 Re4 Be3 Qh5 Rh2 Kg8 Bf3 Rf7 Ng2 Rf8 Ngf6+ Kf7 Rf5 Re6 Be4 Ne5 Rg5 Qb6 Kd2 Qh4 Rh5 Qg5 N4c3 Qa7 Na4 Qa5+
1b4K1/r2R1QN1/B1prBp1r/kb2q2b/1nn1Qr2/P4r2/5N1R/B1rQq3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb6 Ke5 h5 d4 f6+ Ke4 h3 g4 h2 d5 b3 a3 c3 e3 b2 g5 f3 d6 h4 Kd5 c2 e4 h3 g6 f2 d7 c6+ Ke6 Ra7 Kf7 Rh6 g7 Ka5 e5 b5 e6 b4 e7 b3 e8B Bd6 Ne2 Qc7 Nbc3 b1R Na2 b2 Bf4 c1R Bg5 Ne7 g8Q Nd5 Kg7 Nb6 Ng3 Na6 Qd4 Nb4 Nf5 Ba6 Bd2 Nc4 Nc3 Bb5 Nd1 Rc3 Qd3 Rbc1 Qe4 b1B Bf7 Rf3 d8Q Be5 Be2 f1R Bc3 Rf4 Qdd4 R1f3 Nf2 Rd1 Qd7 Rd6 Be6 Qb8 Rd1 h1R Ra2 h2 Ba1 Bc2 Rd3 Rc1 Qgf7 h1Q Bf1 Qc7 Kg8 Bd1 Be2 Qe1 Ng7 Rf5 Rad2 R3f4 Bf1 Bh5 Rh3 Rf3 Rh2 R5f4 Rd1 Rd2 Qdd5 Qe7 Qdd3 Bb8 Qde2 Rdd3 Rd2 Qd6 Qd1 Qe5 Be2 Rdc3 Rd6 Rcd3 Rd7 Rd6 Qf5 Ba6 Qe4 Nb6 Bf1 Bd3 Bc4 Be2 Ba6 Bb5 Bh3 Nc4 Be6
1N2r1NQ/RBrRBr1p/1k4qr/1qb5/1B2Nr2/1nbr3p/4K2P/nb3Q2 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Qd2 fxe6 Qd3 e5 Qh3 e4 Qh4 gxh4 c4 d5 g4 Kd7 f4 Kc6 a4 b5 a5 e5 a6 e3 c5 e4 f5 b3 a7 b2 g5 h3 f6 e2 g6 d3 g7 b4 f7 d2+ Kf2 e1R Ra2 d1R Bd2 e3+ Kf3 d4 Ba6 b3 Na3 b1R Rc2 b2 Be2 d3 Bf1 e2 Bc1 d2 Rc4 Ne7 g8N Nf5 Bg2 Qd5+ Re4 Nd4+ Kf2 Rf1+ Ke3 e1B Nc4 Rf4 Ne2 Nb3 Nc3 Na1 Rd4 Na6 Ne4 Bf5 Nb6 Rc8 Ke2 Rc7 a8Q+ Kb5 c6 Nc5 Bf3 Ncb3 Nd7 Bc5 Nb8 Kb6 f8B Qc4+ Rd3 Qb5 Be7 Bg6 Rg1 Bf5 Rg7 Bg6 Ngf6 Re8 Ng8 Nc2 Bf8 Rce7 c7 Bcf2 Qa1 Bf5 Bg2 Ne3 Nef6 Nc2+ Be4 Bg1 Rg2 Rf7 Be7 Bgf2 Qa2 Ra1 Qb1 Ra7 Kf1 Nca1 Bf3 Be3 Re2 Rb7 Rd7 Bg6 Qd3 b1Q Bca3 Rc1 Bad6 d1R Ra2 Rc6 Bb4 Bd4 Ra7 Bec3+ Ke2 Bc5 Bd5 Qa4 Qf3 Qb5+ Bc4 Qf5 Qf1 Qg5 Bd3 Rd6 Bc4 Bb1 Ne4 R1d3 Bd5 Rh6 c8Q Ref8 Ngf6 Rc7 Bb7 Qg6 Qe8 Rh8 Qf8 Rg8 Qg7 Rd8 Ng8 Re8 Qh8
n1r2Q2/4RN1p/qn3b1b/r1k2bB1/R1nQ3P/r1br1p1N/1N1rB3/3Q3K b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Kf2 Kd7 d4 Kd6 a4 f5 h4 b5 g4 e5 Kg2 c5 g5 c2 a5 e3 g6 c4 g7 e2 d5 e1R a6 c3 a7 f3+ Kh2 f2 Qh5 b4 Qg5 b3 Ra2 f4 Bd2 c1B Ra3 f3 Qg4 e4 Qg3+ Kc5 d6 e3 d7 e2 Qf4 b2 Ra4 c2 Qg4 Ne7 g8Q Qa5 d8N Bf5 Nf7 Nd5 Ra3 Qa6 Nh6 Nb6 Nc3 b1N Qe6 Rd1 Nh3 e1B Bg5 Be7 Qg8 N8d7 Qd8 Rd2 Qg2 Bf6 Qb8 Rd8 Ra4 Na3 Qf4 Nac4 Be2 f1R Nf7 Rac8 Qe4 Na8 Nd1 Ndb6 Nb2 R8d3 Rg1 Ra3 Kh1 Rdd3 Qeg4 Rf2 Qf1 Bec3 Qd1 B1d2 Re1 c1R Qf4 Rca1 Qe4 Nc7 a8Q Rg2 Qb8 Nca8 Rb4 Ra5 Ra4 Ra3 Qef4 Bg7 Qe4 Bh6 Qbf4 Bf6 Qe8 Bdc3 Qf8+ Kc6 Qd4 Kb5 Bf1 Rgd2 Re7 Kc6 Be2 Kb5 Qf4 Kc5 Qd4+
R4brr/5b1p/2K1b2P/RQ2B1q1/n1RN1q1N/B2Q2bp/1nbb4/kn3B2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 e5 axb4 h5 f6 Qd3 fxe5 Qh3 e4 Qh4 gxh4 f3 Kf7 Kd2 Ke6 c4 Ke5 g4 d5 a4 b5 c5 d3 Ke3 b3 g5 b2 c6 h3 h6 d4+ Kd2 e3+ Ke1 d2+ Ke2 d1N Kd3 b4 Kc4 d3 Kb5 Kd4 c7 e5 a5 d2 g6 e2 a6 e1B a7 b3 g7 e4 Ra2 e3 Ra3 e2 Bg2 Qg5+ Kb6 Bd6 f4 Na6 f5 Nf6 g8Q Beg3 Ra5 e1B Qf7 Ne4 f6 Nac5 Nc3 b1Q Qg8 b2 Qb3 Be6 f7 Rag8 a8R Bf8 c8Q Na4+ Kb7 Qd3 Qc6 Qf1 Nf3+ Kd3 Qcb6 b1B Nb5+ Nec3 Qc4+ Kc2 Ba3 Bc8+ Kc6 Ndb2 Qb8 d1B Nh4 Ba2 Nd4+ Kb1 Qbb5 Bd2 Qd3+ Ka1 Bd6 Qff5 Be5 Nb1 Rf1 Bdb3 Rc1 Qff4 Bf1 Bf5 Rc3 Bc2 Rc5 Bae6 Rc3 Bg6 Rc4 Be7 f8B Bgf7 Bfg7 Ba3 Bgf6 Bf8 Be7 Bc1 B7d6 Bd2 Ba3
4n3/b2Nb1pQ/n4p1R/1bRP1K2/bB1r2R1/1Qq2k2/B3rrNb/2nr2Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 d4 Kd5 a4 Ke4 h5 c5 h6 b5 e3 b3 h7 b4 a5 c3 d5 b2 a6 b3 a7 f3 Kg3 c4 Ra6 f2 Rh2 c2 Rf6 c3 Ba6 f1R Rd2 Rf2 Rh6 Qc7+ Kh4 g3 Kg5 g2 Ne2 g1B Bc4 Ba6 Rd4+ Kf3 e4 Bh2 e5 Bb5 e6 Be7+ Kf5 Nf6 Na3 b1B Rg4 b2 Bd2 Ne8 Ba2 f6 Qg1 Na6 Nc4 Qa5 Nf4 c1B+ Nd3 c2 Bb4 Bcf4 Nc5 Bb8 Nd7 Ba4 Ne3 c1N+ Nc2 Rf8 h8Q Qc5 Qh7 Qc3 Bb3 Ba2 Ne3 b1R Bc4 B2b3 Ng2 Bd1 Ba2 Bb5 Bd6 Bda4 Bb4 Bc5 e7 Bbd6 Rc4 Rb8 a8Q Ba7 Rg4 Rc8 Qe1 Rc4 Qg1 Rd4 Qc6 Rh8 Qc4 Rbb2 Qb3 Rbe2 Qgd1 Nec7 e8R Be7 Rc8 Ne8 Qg1 Rd1 Qg8 Rh7 Rc5 Rd4 Rhg6 Rh4 Rh6 Rd1 Rgc4 Rhd4 Qh7 R4d3 Re4 Rd4 Rg4
2Rq2RK/nN2nP2/1Brr2p1/3k1b1b/n3B3/Rr3Nb1/pQn4n/NQ1b4 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Ke6 c4 a5 b4 d5 f4 g3 h5 d3+ Ke3 g2 Kd4 e3 h6 g6 c5 e2 b5 e1R b6 d2 b7 a3 c6 a4 h7 a2 c7 a3 Nh3 g1N Bb2 Ne2+ Ke3 d4+ Ke4 d3 Rg1 Nc6 b8N Ra6 Bc1 Na7 Nd7 Rc6 Rh1 Nc3+ Kd4 Na4 f5+ Kd6 f6 Re3 Nc5 Bf5 c8R e6 f7 Ne7 Qe1 d1B Nd2 Bh5 Ndb3 d2 Ng1 d1B Nf3 Rg8 h8Q e5+ Kc4 e4 Kd4 Bh6 Bd3 Bf4 Qg7 Bg3 Nb7+ Kd7 Rh3 Rf8 Rb1 a1N Bd2 a2 Ba5 Re8 Bb6 Rf8 Rc1 Rh8 Rc5 Ke6+ Rd5 Re2 Rd7 e3 Qb4 Rb2 Rd5 Qc7 Rdd8 e2 Rg8 e1N Qb5 Bfg4 Ke4 Nac2 Na1 Rb3 Qb2 Qd8 Qb1 Bf2 Kf4 Bf5 Kg5 Bg3 Qb4 Rd6 Qc3 Kd5 Qcb2 Be6 Kf6 Bf5+ Kg7 Rc6 Ne5 Rd6 Rc4 Nf3 Rc8 Nh2 Nf3 Bhg4 Rc3 Rh4 Rc8 Bh5 Kh8 Re4 Rh4 Ree6 Re4 Nc5 Ra4 Rc6 Ra6 Red6 Ra3 Na4 Be4+
2rBrq1Q/nnn1Pk2/n4RRp/6b1/4bQ1p/rB3rb1/N2r2QB/KN6 b - - 0 1 illegal: No possible last move
1bNrq1Bq/q1p4k/nQ2Np2/Q4R2/2P4b/2rN1q2/1q2R3/2BKnqBb b - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 d4 b5 c4 e5 g4 h5 a4 e4 a5 f6 d5 Kf7 g5 Kg6 d6 e3 a6 h3 a7 f2+ Ke2 b3 d7 h4 Nf3 b4 Nd4 b2 Ra3 b3 Ra4 h2 Bg2 h3 Ra2 Nh6 Bc6 Ng4 Nd2 b1Q Nb5 b2 Bb7 Qa1 Nf1 b1Q Nd4 Qbb2+ Nd2 Kh7 Qb3 Na6 Bd5 Bb7 Rf1 h1Q Bf7 h2 Qb6 Bc5 Ne6 Ne5 Kd1 Qe8 d8B Nf3 Be7 Ne1 Nb3 Rd8+ Bd6 Qe4 a8Q h1Q Qaa7 Bd4 Nbc5 Qh3 Qa8 Qef5 Nd3 Bh1 Bc5 Qh2 Rg1 f1Q Rg3 Rg8 Rf3 Qhh3 Rf2 Qff3+ Re2 Qh6 Ra5 Qg7 Qaa7 Qh8 Rb5 Rg6 Qa5 Rh6 Q7b6 Rh3 g6+ Kh6 g7 Kh7 g8N Rg3 Qd6 Qaa3 Bb4 Ba7 Ne7 Bb8 Bc5 Rh3 Bd4 Qc5 Qc6 Qa7 Qcb6 Qfc6 Ndf4 Nc2+ Re1 Qca8 Rf5 e2+ Kd2 Rc3 Nd3 Qaf3 Bg1 Q1f2 Rf1 Q2g2 Rf2 Qf1 Nc8 Qfb7 Qab5 e1B+ Kd1 Qf3+ Re2 Bg3+ Kd2 Ne1+ Kd1 Bf2 Q5a5 Bh4 Bg8+
4Rq2/bnpp1r1n/1q3b2/2k3NP/2bR1r1b/4B2Q/Rr2Q3/Nb1NbB1K b - - 0 1 illegal: No proof kernel
2NqnK2/PrQ1rQ2/N1np1n1n/2p1n1n1/1Rb3kb/3RB1qR/1rB5/4Q3 b - - 0 1 illegal: No proof kernel
1B2r2r/pkq1Q3/b1rN1BnQ/1BrP2bp/2n5/R2R1b1N/2n1b3/4bNK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 b4 Kc6 g4 h5 e4 f5 d4 h3 d5+ Kb7 b5 c5 g5 f3 e5 a3 b6 a2 e6 f4 e7 h2 e8N c3 g6 c2 g7 c4 Nc7 c3 Ba3 c1B Bb4 c2 Bd6 Ne7 g8Q Ng6 Qe1 Nd7 Bg2 Nde5 Qh7 Nc4 Nb5+ Qc7 Ba3 Bb4 Qe2 Be1+ Kf1 f2 Qe5 Be3 Qg5 c1R Qhe7 Bg4 Nd2 Rae8 Bb4 Bf3 Qh6 Rc3 Rd1 a1N Nh3 Nc2 Rg1 h1R Nd6+ Ka6 b7 Rh2 b8B Kb6 Nb5 Kb7 Ng5 Rh4 Nh3 Rg4 Ba3 Rg5 Bb2 Rf5 Ba1 Rf6 Bb2 Rc6 Ra1 Na5 Ra2 R3c5 Ra3 Nc4 Bg7 Bd4 Rd3 Bf6 Rh1 Bg5 Bf6 Bg4 Be4 Be2+ Kg2 f1B+ Kg1 Bg2 Nf1 f3 Bf5 Kb6 Nd6 f2+ Kh2 Be4 Bd7 B4f3 Rg1 Ka6 Rg3 Kb6 Nd2 f1B Kg1 Nb2 Ra3 Ba6 Rd3 B1e2 Nf1 Nc4 Ra3 Be4 Rgd3 B4f3 Ne4 Rd6 Ba4 Kb7 Bb5 Rdc6 Nd6+
bqrrq3/3q1kr1/1BN5/1rQ5/2Br1Bn1/2R1bRPK/qp2npN1/5QN1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 b5 e4 c5 a4 h5 d4 f5 e5 b3 d5 c3 d6 f3 d7+ Kf7 a5 h3 Kg3 f4+ Kh2 b2 g3 c4 a6 b4 a7 b3 Qc2 h4 Ra2 f2 Qe2 f3 Be3 c2 Nc3 b1Q Rb2 c1R Bb6 Nh6 Ba5 Bb7 Na4 c3 Rc2 b2 Rd2 c2 Qe1 Bc5 Rd4 Qa2 Ne2 Qe8 d8B Rg8 Rd3 Be3 Nc5 Rg7 Bdb6 Nc6 Na6 Rd1 Nb8 c1R Rc3 Nd4 Nc6 Rd8 Ng1 Ba8 Bd3 Ne2 Qf1 Rd2 Bc7 Rcc2 Bab6 Qd7 Qe1 f1R Qf2 Ra1 Qf1 f2 e6+ Kg8 e7 Kf7 e8N Rdd1 Bf5 Rd4 Nf6 Rac1 Rd3 Rc5 Nd5 Rb5 Nf4 Rcc4 Ng2 Qe8 Na5 Rc2 Bf4 Rcc8 Nc6 Qd7 Nf3 Qe8 Rg1 Qd7 Rc3 Qe8 Bd3 Ng4+ Kh1 h2 Rb3 Bb7 a8Q Qd7 Qa3 Ba8 Qc5 Qe8 Nge1 Qd7 Kg2 Qe8 Kh3 h1Q+ Nh2 Qd5 Ng2 Qdd7 Nf3 Qd6 Qb1 Qb8 Rc1 Qd7 Rcc3 Qe8 Qf1 Qd7 Nge1 Qe8 Kg2 Qd7 Ng1 h3+ Kf3 h2 Kg2 Qe8 Kh3 Qd7 Ng2 Qe8 Nf3 h1Q+ Nh2 Qe7 Bb1 Qf8 Qg1 Rd3 Rc4 Qg8 Qc1 Qf1 Nf3 Qe8 Ng1 Bd2 Ra3 R3d7 Rf3 Be3 Rc3 Qd1 Be4 Qdd5 Qf1 Qf5 Bc2 Rd4 Bd3 Qfd7 Bc4+
2KbBQ2/8/1Rbq2B1/3r1r1r/1bnN4/B1bp2Qn/p2rP1R1/b1kN1Qq1 b - - 0 1 illegal: No possible last move
rQq1r2b/n3Rqbk/4R3/3b1BbQ/KN2B2n/p2qPN1p/4NB2/1q4b1 b - - 0 1 illegal: No possible last move
KBqn1q1Q/b2rR3/BR1n4/q2kbb2/br6/ppQN2N1/B3RP1q/b7 b - - 0 1 illegal: No proof kernel
1qRb3N/qbBn2n1/2k5/4N2Q/nn2BKRP/2Nqp2Q/1qp2R2/q2r3r b - - 0 1 illegal: No possible last move
6n1/1n5r/1n4n1/R1qP1r1B/kp1Q1RQ1/qp1NQb2/1B1Nr1B1/n1r1bK2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Kd7 a4 Kc6 g4 h5 e4 f5 e5 b5 a5 f3 a6 h3 g5 f2+ Ke2 h4 g6 b3 g7 h2 a7 f4 e6 f3+ Kd2 c3+ Kd3 h3 e7 c2 e8B+ Nd7 Bb2 c1N+ Ke3 Nd3 Bg2 f1N+ Ke4 f2 Kf3 Ng3 Na3 f1R+ Ke3+ Ne4 Ke2 Rf5 Ra2 Qg5 Qd2 Bb7 Qb4 Rh7 Bh5 Re8 a8Q Nb6 Ra1 Nf4+ Ke1 Ng6 Qba4 Bb4+ Ke2 Be1 Nf3 Nd6+ Kf1 Re2 Rg1 h1Q Qb8 h2 Bc3 Ba8 Qc8 Nb7 Qf8 Qc1 Nc2 Qa3 Qe7 Qc5 Qe3 Qa3 Bh3 Qc5 Qf4 Qa3 Nd2 Qd5 Rd1 h1R Rb1 Qdc5 Qa7 b4 Bb2 Kb5 Bg2 c6 Qb8 Ka4 Qd6 Qa5 Qe5 c5 Qe3 c4 Rd1 c3 Qff2 N8e7 g8Q Qc5 Qc8 Ng8 Rc1 Rd5 Qg4 Rf5 Ra1 Nd6 Rc1 Bf3 d5 Nb7 Qfh4 Bg3 Ne1 c2 Ra1 c1N Nd3 Be1 Qgd4 Qf8 Qhg4 Qc5 Nf2 Nd3 Rc1 Nde5 Nd3 Nec4 Rc2 Qa1 Rc3 Na3 Rc4 Nc2 Rc3 Qc7 Rc5 Qa3 Rb5 Qc4 Ne5 Qc5 Nd3 Rh3 Rh1 Rg3 Rh4 Na1 Qgf4 Rg4 Qg5 Re4 Rf4 Ree7 Qg4 Re4 Qg7 Rc4 Qgd4 Rc1 Ra5+
3qQ1bb/1qR5/N7/2npq3/1QQnbB1r/3qb1Kb/Rp2NP2/1r1N1B1k b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 c4 Kf7 a4 Ke6 g4 Ke5 a5 b5 g5 h5 c5 h3 c6 d3 a6 d2+ Ke2 Kf4 c7 e5 a7 e3 g6 h2 g7 e4 Bh3 b3 Qf1 d1B+ Ke1 b2 Nc3 b1Q Ba3 b4 Qg2 h4 Be6 b3 Qh3 e2 Nf3 b2 Bd5 Na6 Rg1 h1Q Qe6 h3 Qg6 h2 Be6 Qd3 Ba2 Rh4 Nb5 Nc5 Ng5 Nh6 g8Q Bb3 Qc4 Bg7 Qe8 Bh8 Nc3 Nf5 Qb4 Bg8 Nf3 Nd4 Nd1 d5 Rf1 Bh3 c8Q Qg2 Ng1 h1B Bb3 Qg7 Ra2 Qb7 Qcc6 Rc8 a8N Rc7 Bc4 Rg7 Nf3 Rg1 Nc7 B1g2 Na6 Rh1 Ne5 Rg1 Ng6+ Kf3 Qc8 Bh1 Qc7 Kg2 Nf4+ Kh2 Qcc6 B1g2 Qc8 Kh1 Qc7 Qb1 Kd2 e1B+ Ke3 Bf3 Ne2 Bc3 Qbb5 Ba5 Qf4 Bb6 Qb4 Bfg2 Qg4 Qd3+ Kf4 e3 Kg3 Ba7 Re1 Rf1 Bb5 Bf3 Qc4 Be4 Bb4 Bb6 Bd2 Ba7 Ndc3 Bb6 Rc1 Ba7 Rc2 Rb1 Nd1 Bb6 Ng1 e2+ Be3 e1Q Ne2 Nf3 Bf4 Qec3 Qb4 Qe5 Qc8 Na4 Qcc3 Be3 Qcb3 Nd4 Rc7 Qd2 Bd3 Nc5 Q3c4 Qc3 Nc1 Qa3 Bf1 Qd3 Ne2
1RR3rn/3bb1b1/r1N1Q3/1p1B3K/1P4R1/kBp2q2/rQr2nr1/1Bq3Nb b - - 0 1 legal: proof: h4 d5 f4 e5 c4 dxc4 b3 exf4 h5 a5 h6 a4 Bb2 a3 Rh2 axb2 Rh5 gxh6 Rh2 h5 Rh1 h4 Kf2 Ke7 Kf3 Kd6 g4 Kc5 e4 Kb4 d4 f5 a4 h5 g5 b5 d5 c5 d6 h3 d7 c3 a5 h2 a6 c4 g6 c2 g7 c1B a7 h4 e5 c3 e6 h3 e7 Nh6 e8B Na6 g8B Bg7 Bg6 Qf6 d8Q Nc5 Ra6 Nf7 Nd2 b1R Qc7 Ba3 B8h7 Nd3 Qc1 Nf2 Qe1 Rb2 Qe3 Rc2 Qd8 Bd7 Qe5 Rg8 Bg2 Nh8 Rc6 Qf8 Bf7 Ra2 Ke2 f3+ Ke3 Rc2 Kf4 Ra2 Kg5 f4 Kh5 Rc2 Ne2 Ra2 Rc1 h1Q Nc4 h2 Qe6 Qd1 Bc2 h1B Na5 Qf1 Ra1 Qc1 Rc8 Qe3 Qg5 Nh3 Rg1 f2 Qee5 f1R Bc6 Rf2 Rg4 Rg2 Ng1 Qd2 B6e4 f3 Bfd5 f2 Qe6 f1R Rb8 Qd1 Qc1 Nf2 Qa1 Qff3 Rc8 Re1 Rb8 Re2 Nc6+ Kc5 Bb1 Qc1 Bc4 Rec2 Bed5 Bb4 Rc8 Rb8 a8R Rb6 Rab8 Rba6 Rb6 Ba5 Rbb8 Bd8 Nd4+ Kb4 Nc6+ Ka3 b4 Bh4 Bb3 Be7 Qb2+
B1N2B1b/n1rRR1B1/2k1b3/prq5/1P1nq3/KN3q1q/n5pn/q2QQ2R b - - 0 1 illegal: No possible last move
r2n4/Rrq3b1/1Nk2qB1/p1B1QbQ1/P2b2br/K1Q2br1/N2p3n/4R1B1 b - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 Kd2 h5 Kc3 a5 Kb3 c5 e4 d5 g4 Kd7 a4 f5 g5 d4 g6 h3 g7 d2 e5 f3 e6+ Kc6 e7 h2 Qe2 d1B+ Ka2 h4 b4 f2 Bd2 d3 Bh3 f1R Bf4 c4 Bg2+ Rf3 Qc2 h3 Bd2 c3 Be3 f4 Nd2 Nh6 g8Q Rh7 Rc1 Qc7 Qf7 Bg7 Ka3 Ng4 Qg8 Bf5 Nc4 d2 Bc5 Be2 Qb2 c2+ Qc3 Rh4 Bf1 Rg3 Re1 f3 Nb6 f2 Qd8 Bd1 Bd3 f1Q Ne2 Qf2 Rhf1 h1B Nc1 h2 Na2 Bhf3 Qg8 Bd4 Qg5 h1R Rg1 Nh2 e8Q+ Nd7 Qh8 Nf8 Qe5 Ne6 Rgf1 Nd8 Rg1 Be6 Bg6 Bfg4 Rg2 Qf6 Rge2 Bef5 b5+ Kb7 Re3 Bdf3 Rd3 Bg1 Rd7 Bd4 Nd5 Rhg1 b6 Kc6 b7 R1g2 b8B c1B+ Kb3 Re2 Nb6 Bb2 Ba7 Ba1 Rh7 Rf2 Ka3 Rf1 Re4 Rb1 Re1 Rb2 Nd5 Rbb8 Nb6 Rb7 Qe8+ Qd7 Re5 Bg1 Bf2+ Kd6 Qb2 Qfg7 Nc8+ Kc6 Re1 Rb4 Bac5 Qd4 Qc2 Qd6 Rf7 Bg7 Qc3 Qf6 Qee5 Qdd6 Rb7 Qc7 Ra7 Rb7 Bfe3 Bf2 Nb6 Bg1 Bf4 Bd4 Be3 Nf7 Bf2 Nd8 Bg1
2qNRn2/1rbrBN1n/n3b2n/p3P1Rr/1r1p1BR1/7Q/BQ1K3k/6nq b - - 0 1 illegal: No possible last move
1q3Q2/3K4/1qQbp1k1/1b2B2q/n2B1pPb/4NBb1/1Rq2R1N/rn2rqR1 b - - 0 1 illegal: No proof kernel
3kn2r/1Q2bn1N/BB1pPpQ1/K3NbN1/5bbn/3R1qq1/2B1b3/1nR2r2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 a4 b5 h4 b3 e4 g3 c4 g4 e5 b4 a5 f6 a6 g2 a7 b2 h5 d3 h6 b3 Kc3 d6 Kb4 g3 c5 d2 h7 f3 c6 f2 c7 Be7 Rh4 Nh6 Qe1 d1Q Nf3 g1B Kb5 g2 Rd4 Nf7 Nc3 b1N Ka5 b2 Qe4 Na6 Bd3 f1B Bc2 Bg4 e6 Be2 Ng5 Be3 Rd3 g1N Qg6 Nf3 Nce4 Bf4 Be3 Nh4 Bb6 Qf1 c8Q Qf3 Qb7 Rb8 a8B Nc7 Qc6+ Qd7 Bb7 Kd8 Ba6 Qg3 Qb7 Qc6 Nc3 Qcf3 Nce4 Nc3 Rc1 b1B Bc5 Ne8 Be3 Rf8 h8N Rc8 Nh7 Rc5+ Bb5 Rf5 Neg5 Rg8 Bc5 Rf8 Ba6 Rg8 Qh6 Rf8 Ng6 Rh8 Bb3 Bc2 Ne5 Nb1 Qg6 Qc6 Qb5 Be3 Rc3 Rf1 Qb7 Bcf5 Bc2 Bf4 Rd3 Qcf3 Bb6+
1b2b1R1/6np/B3R2B/Q1Knr1N1/r1p1qn2/k2PN1R1/5Q2/1Qqbb1bn b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d3 c3 Ke2 Kd7 Ke3 Kc6 g4 Kc5 f4 e5 a4 b5 g5 h3 f5 b3 a5 Kb4 a6 c5 a7 c2 f6 b2 f7 c4 g6 h2 g7 Qe7 Nc3 b1B Ra6 Nc6 Nge2 Nd8 Rf6 Ne6 Rg6 Nh6 g8Q Bd7 Bb2 Nf5+ Kd2 e3+ Ke1 e4 Nc1 e2 Kd2 e1B+ Ke2 Bf2 Rgg1 e3 Ne4 Nfg7 Bg2 Re8 a8R Qh4 Bf1 Bd6 f8Q Ba2 Qgf7 Bb3 Qf5 Qf4 Rg6 Bg1 Bg2 Qh4 Kf3 e2 Qh5 e1B Ne2 Re7 Nf4 Ba4 Bc3+ Ka3 Nd5 b4 Bd2 b3 Ke2 b2 Qf2 b1N Ke3 Nc3 Qb1 c1Q Rb8 Nc7 Kd4 Bd1 Bh3 Bc6 Bc8 Bg3 Bh6 Ne2+ Kc5 Rd8 Ne3 Rd5+ Kb6 Ra5 Qhf5 Ra4 Qa5 Nd5+ Kc5 Bc7 Ba6 Re5 Rd8 Bb8 Re6 Bb5 Rf8 Be8 Ng5 Qe4 Rg8 Nef4 Qfc2 Bgf2 Rg1 h1N Rg3 Bg1 Qf2
2Rrq1bQ/1Kn3pk/1N2bB2/2Qnbn1N/P5b1/Qn1B4/5pbB/2qr2R1 b - - 0 1 illegal: No possible last move
2Rr1n2/b1Q2pr1/6Bp/B6q/1K3BR1/rb2N1nn/rP1QnR1k/N1r2q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 e4 Ke7 g4 Kf6 d4 Kg5 Kd2 a5 Kc3 c5 d5 h6 e5 h3 d6 Kh4 d7 Kg3 g5 h2 e6 f3 e7 a3 e8Q a4 g6 f2 g7 a2 Qde1 a3 Q1e6 Ne7 g8R+ Ng6 Qc6 Qa5+ Kc2 c3 Kb3 c2 d8B Be6+ Bc4 f1Q Nc3 Nd7 Be7 Rd8 Na4 Rh7 Bd5 Rg7 Rh8 Nf4 Nf3 Nh3 Nb6 Kg2 Bd2 c1R Bd6 Be7 Be5 Nf8 Nc4 Bg5 Bg3 Be3 Qed7 Bg1 Rb1 a1R Bgf4 a2 Be4 Qb5+ Ka3 Bd4 Ba5 Bg1 Nb6 c4 Nd5 c3 Bg6 c2 Qcc7 Ba7 Nd4 Qbe2 Kb4 Qh5 Nf6 Bb3 Nd5 Qfd1 Rf1 h1N Qdd6 Ng3 Ne3+ Kh2 Rf3 Qf1 Rg8 Rd1 Rc1 Rd3 Qd5 Rb1 Qdd7 a1R Qd5 Ra2 Rf2+ Qg2 Rg1 c1N Ndc2 Ne2 Na1 Rc1 Rh8 Ba4 Rg8 Rda3 Qd2 Bb3 Rf3 Qf1 Rg2+ Kh1 Rff2 Nf5 Rg5 Nfg3 Rg4 Ne6 Re8 Nf8 Re5 Kg1 Rb5 Kh1 Rb8 Kg1 Rc8 Kh1 Rf3 Kh2 Rf2+
R1rq1BB1/3nPQ1k/1q6/6K1/3prr1N/qbr2pn1/1Nq5/bQRqRN2 b - - 0 1 illegal: No possible last move, all moves rejected
R6n/1B1Pk2N/q1Qq1B1Q/1qr1qB1r/2br4/qn1Q1rp1/3b1pK1/1R5N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 h4 b5 d4 f5 e4 g5 a4 f3 d5 f4 d6 c3 h5 c2 a5 c4 a6 b3 h6 b2 a7 g3+ Ke1 g2 Kf2 g4 e5 g3+ Ke1 f2+ Ke2 c3 Kf3 b4 h7 b3 e6 Nc6 e7 Nd4+ Ke4 f3 Bg5 c1Q Rh3 c2 Rh5 Bh6 Ra5 Be6 Rf5 Bc4 Nc3 b1Q Bd3 f1Q Rh1 b2 Nh3 g1R Nf2 Qa1 Ra5 b1Q Bf6 Qca3 Nd5 c1R Bg7 Qb5 Nf6+ Kf7 Bc2 Nb3 Qd3 Bd2 e8B+ Ke6 Bc6 Ne7 Bb7 Ng6 d7 Qdf8 Ra4 Ke7 Bb1 Rc8 a8Q Rc3 Qa6 Rc5 Qc6 Qb8 Ra8 Qd6 Bc2 Rg2 Rg1 Rh2 Nh1 f2 Kf3 Rhh5 Bb1 Qe2+ Kg2 Qee5 Rf1 Rb8 h8Q Q1a2 Qh6 Nh8 Nh7 Rf8 Qdf3 Rf4 Bf5 Rd4 Rb1 Qaa6 Qe2 Rf3 Qd3 Q2a3 Bf6+
1n1qr1RN/BKNp1Q1r/Q1r5/qR6/3b4/qn2kbQB/2P1r1p1/Bq4q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 f5 h5 b5 h6 g5 e5 d3 h7 Kd4 a5 f3 e6 g3+ Ke1 b3 Kd2 b2 a6 g2 a7 f4 e7 f2 e8Q b4 Qdh5 f3 Qe6 b3 Qb6+ Bc5 Qc7 g4 Qh3 g3 Ra6 Nh6 Nc3 b1R Ba3 b2 Qc6 Re1 Nd5 b1Q Qg6 Bb7 Rb6 Nf5 Qf7 Ke4 Kc3 d2 Kc4 d1R Rb3 Nd4 Nc7 Re2 Rb5 Ke3 Qg4 Rdd2 Nh3 g1Q Nf4 Nb3 Bh3 f1Q Ng6 g2 Qg3 Bd4 Bc5 Qfe1 Bb6 Re8 h8B Rd1 Bf6 Qa5 Nh8 Qa3 Bg7 Qe1 Rh2 Qea5 Bc5 Rh1 Bb6 Bc5 Ba1 Bd4 Bc5 Re6 Bb6 Rc6+ Kd5 Na6 Bc5 Rc8 a8Q Nb8 Qa6 Ba8 Ba7 Qg1 Qg4 f2 Qh4 f1Q Qe1 Rc5+ Kd6 Bf3 Qg3 Qb1 Bg4 Qae1 Rh7 Rh4 Rg7 Rh7 Rg8 Qea5 Be6 Qg5 Bg4 Re8 Bh3 Qd8 Ne6 Qae1 Qc6 Qh4 Kc7 Qea5+ Kb7 Qhd8 Nc7 Rc3 Rd5 Rc4 Qa6 Rc6 Rb5
4k3/nqp2p1R/R2nr3/1QQ5/K1bn1b1q/1PB1nB2/N3rb1Q/1b2nN1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 e4 h5 d4 a5 Kd2 a3 Kc2 a4 g4 c3 d5 a2 d6 a3 Kb3 h3 g5 c2 e5 f3 e6 f2 g6 h2 g7 h4 e7 h3 Bf4 c1B Bg2 f1N Bd2 Nf6 g8Q Ba6 Qh7 Ne4 Ba5 Bf4 Qd4 Nc6 Qe3 Bc4+ Ka4 Ra6 b3 Na7 Qf3 Ne3 Qg7 Qc8 Qfg4 Qb7 Qe5 Rh5 Qh8 Re5 Qgh5 Re6 Nc3 Rb6 Rd1 a1N Nf3 a2 Qc5 Nac2 Nd2 a1N Na2 Ne1 Nf1 Nac2 Bf3 Nd4 Ra1 Re5 Bc3 Rc6 Rg1 h1B Rg7 h2 Rh7 Bg2 Qb5 h1Q Qc5 Qh4 Qb5 Kd7 e8B+ Kd8 d7 Bc5 Qf8 Rce6 Qd6 Bb6 Qdc5 Bh3 Bh1 Nd6 Bf3 Ke7 d8Q+ Kf8 Qb8 Bf5 Bec6+ Ke7 Qg8 Bb1 Qg1 Kf8 Qh2 Ke7 Qa6 Kf8 Bcd5 Ke8 Bh1 Nef5 Bdg2 Re2 Bf3 Ne3 Qab5+ Qc6 Qg5 N3c2 Nc1 N4f5 Ra3 Bbe3 Na2 Ncd4 Kb4 Bf2 Ra6 Ne3 Qgc5 B4g3 Qbb6 Qb7 Ka4 Bf4 Qbb5+
3q4/p3nBQq/1b2R2N/2N1Rnpr/1nb1K1PB/3r4/Rrrrn3/k2N1Q2 b - - 0 1 illegal: No possible last move
R6q/p4N2/1kN2rPb/rbnrBq2/1R5B/2nN1n2/1rBQ1Kp1/3Qn1r1 b - - 0 1 illegal: No proof kernel
1Q5B/2nQk3/N2bq1nN/4qr1R/2r2q1q/rB1KQ1Pr/1Rp3p1/5Bnb b - - 0 1 illegal: No proof kernel
3rN1K1/6n1/2qQ3q/1q4N1/2QRnqr1/BB1p3R/nPb2bRp/b1B1n1k1 b - - 0 1 illegal: No possible last move
3R1rR1/r4N2/1n1n4/nb1Bbb2/1K2N1Pk/2B1Br2/1Q1qnp1p/1Rbq3Q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Ke7 d4 Kf6 Kd2 Kg5 g4 c5 e4 b5 a5 f5 a6 h5 e5 f3 d5 f2 d6 b3 Kc3+ f4 e6 b4+ Kb2 h3 a7 h4 d7 h2 e7 h3 e8R Ba6 Qf3 Bb5 Qe4 Nf6 Ne2 Nc6 Bg2 f1R Bd2 Rf3 Rf1 h1N Nbc3 h2 Rae1 Na5 Qc2 Bg7 Nc1 Kh4 Qd1 Rf8 Rg1 Ng3 Nb1 c3+ Ka1 c2 Kb2 c4 R8e7 Nge4 Bc3 Nd5 Re8 Be5 Qd2 Nb6 Nd3 c1N Rd1 Nd6 Rgf1 Qg5 d8B Ne2 Bc7 Qh6 Qc1 Qg5 Nd2 Qd8 Ne4 Qd7 Ka1 b2+ Ka2 b3+ Ka3 b1B Kb4 b2 Rg1 Bc2 Rd2 b1Q+ Qb2 Qd1 Rc8 Rf7 Rg8 Raf8 a8Q Qd8 Re1 Qg5 Bd8 Ra7 Bf6 Bb1 Bd4 c3 Be3 c2 Rh1 Bd4 Ne5 c1B Nf7 Be5 Re1 Rg3 Rf1 f3 Rh1 f2 Bg7 Ndc4 Rd8 Nd6 Qc6 Rf3 Bh8 Bg3 Bc3 Be5 Qc4 Rf5 Nc5 Qe1 Qe4 Bd2 Bd4 Rf4 Qa8 Bf5 Bb7 Qb1 Rc1 Qd3 Rb1 Bc1 Bh1 Qd1 Qg2 Bg7 Qf1 Bh8 Bd5 Be5 Ne4 Rf3 Qh1 Qgd2 Be3
bnn1qq1N/2r5/B6r/1b2q3/Rb4p1/NP1p2Qb/Q2qkn1K/B1B1Q1R1 b - - 0 1 illegal: No possible last move
2bkbn1r/1RQN4/4B1r1/BN1Qr1qq/Kbn2P2/1B2R2Q/2pb1p2/1r5n b - - 0 1 illegal: No possible last move
1r3Bb1/N1RqN3/bk2Bn1n/4q1Rr/1n1p2qB/qNb5/b1p2K1P/1Q3Q2 b - - 0 1 illegal: No proof kernel
4B1q1/B7/3rR1RQ/1Q1rBP1n/1K1b1pn1/1bn2Nr1/qn3p2/RN1q2kq b - - 0 1 illegal: No proof kernel
qk1Q1BBK/n1b2qrQ/2R3B1/b1N1Rp2/rPb5/1b2rN2/2p3Q1/3qr2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 a5 d4 c5 g4 Kc7 e4 c3 d5 f3 g5 a3 g6 c2 g7 a4 b3 f2 Nd2 c4 Be2 f1B Qe1 a2 Bd3 c3 Ne2 a3 Nc4 h3 Nb6 h2 Rb1 a1B Ba6 h4 Na4 a2 Qd2 h3 Bc4 Nh6 g8Q Rh7 Ng3 Qf6+ Kf4 Nc6 d6+ Kb8 e5 Qf7 Kg5 Be6 d7 Na7 Ne4 Ng4 Qe2 Nf2 Nac5 Rg7+ Kh6 Bd5 Qh7 Bd6 e6 Bc7 Bb2 c1Q+ Nd2 c2 e7 Qd1 Ba3 Bc3 e8B a1Q Nf3 B3a5 Rg1 h1R Rg6 h2 Rc6 Rhg1 Qd2 Nh1 Qg2 Bd3 Rb2 Re1 d8Q+ Nc8 Bb4 Re3 Ba3 Be6 Bd5 Bc4 Bb4 Qg8 Bg6 Qf7 Rb1 Qe2 Re1 Qed1 Ne4 Ra6 Bf8 Ra8 b4 Qa3 Qe7 Na7 Nc5 Bb3 Be4 Bec4 Bd5 Ng3 Qh4 h1R Re2 Re1 Qd8+ Nc8 Be6 Nh1 Bd5 Qf6 Bg8 Qf7 Rd2 Qaa1 Rd5 Ra6 Re5 Qa4 Rd6 Qc6 Rf6 Qa8 Rc6 Bab6 Qh8 Ra4 Qdg5 Qe6 Qe7 Ba5 Qd8 Rd7 Qh7 Qe8 Qde7 Na7 Qf6 Qe6 Qfe7 Qed5 Kg7 Qe6 Kh8 Qed5 Qe6 Rg7 Qf6 Qf7 Qd8+
5qQ1/3nbrqQ/Rr2B1nN/N3pp1K/1rR2k2/B5R1/rnP5/1bb2bB1 b - - 0 1 illegal: No proof kernel
1n3Rqq/qrb2bQ1/N1Qq3r/1n1p3p/k2P2QN/R1B1bK2/1r1B4/1R3b2 b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 Na3 b3 Bb5 c6 Nb1 cxb5 Rh2 b4 Rh3 Ra6 Rh1 Ra8 Ke2 d5 c4 Kd7 f4 Kc6 d4 e5 a4 b5 g4 h3 f5 b2 g5 h2 g6 b3 c5 e3 a5 e4 a6 b4 g7 Kb5 c6 Ra7 f6 Be6 c7 Nh6 c8Q Qd6 g8Q Nf7 Nf3 Rb7 a7 Bh6 Rf1 h1Q Na3+ Ka4 Qc5 b1Q Re1 Qa2+ Qd2 b2 Rb1 b3 Ra1 b1B Qc7 b2 Nb5 Bd3+ Kd1 b1R Qe2 Rb2 Nh4 Bc4 Qeg2 Bf1 Bd2 Qaa3 Q8g7 e2+ Kc1 e3 Q2g4 Bg5 Qc6 h5 Rb1 Qg1 Rd1 e1Q Bc3 Qac5 a8R+ Qa7 Bd2 e2 Nc7+ R2b5 Rb2 Be3 Na6 Rh6 Rb3 Qeg3 Kc2 e1B Rdb1 Qge5 Kd1 Bg3 Bc3 Qe4 Bd2 Qh7 Bc3 Qh8 Bd2 Ng5 f7 Ne4 f8B Bf7 Be7 Be5 Bd8 Qg2 B8a5 Nc3+ Ke1 Nd7 Rf8 Nb8 Qc7 Rb4 Qc6+ Nb5 Kd1 Qf6 Ke1 Bc7 Kd1 Qd6 Ke1 Rc4 Bac3 Rb4 Kd1 Qe4 Ke1 Qeh7 Kd1 Q7g8 Ke1 Bg2 Ke2 Bf1+ Kf3 Rc4 Ba5 Rc2 Bac3 Rb2 Ra3+
Nn3qN1/3rk3/BRB1b1K1/b1P4N/q1b5/1b1n2Rr/Qp2Q1pn/nr2B3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 g5 a4 b5 c4 d3 a5 d2 e5 b3 a6 f3 Ke3 b4 a7 d4+ Kd3 f4 Ke4 g3 h5 d3 e6 g2 Kf5 f2 h6 f3 h7 g4 Bb2 g3 Rh2 Nf6 Nc3 Ne4 Nge2 g1Q Rh3 g2 Ra6 Ke7 Nb1 Nc5 Bc1 b2 Ra4 b3 Qc2 d1B Qc3 d2 Kg6 Nd3 Qc2 Qa5 Ra3 Qa4 Nbc3 b1R Ne4 b2 Nf4 Qh1 Be2 f1B Rh6 f2 Nf6 Qh4 N4h5 Qf4 Qb3 Qf3 Qb5 Bb3 c5 d1N Qa5 Bg7 Bd2 Ne3 Be1 Nc2 Qb5 Rd8 h8Q Na1 Qg8 Rd7 Qf7+ Kd8 Ng8 Bc3 Qc4 Ba5 Qe4 Qf4 Qe3 Qd6 Qef3 Qf8 e7+ Kc7 e8B Kd8 Bd1 Be2 Qe3 f1N Bc2 Nf2 Bd3 Nh2 Ba6 Bec4 Qe2 Nd3 Qfe6 Rd4 Qf7 B8e6 Beb5 Rh4 Bc6 Rh3 Bf2 Nd7 Be1 Rb8 a8N Rb7 Qff1 Nb8 Qf7 Bc2 Rb3 Rd7 Rb6 B2b3 Rh7 Rb7 Rg7 Re7 Kh7 Rd7 Rg3 Rh4 Kg6 Rh3 Qf4 Ke8 Qfd2 Kd8 Qb4 Ke8 Qa3 Kd8 Qa2 Ke8 Ngf6+ Ke7 Ng8+
r1R3br/B4n1b/R4qk1/2P5/1QQ2np1/b2B3p/qNKQ2n1/rnN1r1N1 b - - 0 1 illegal: No proof kernel
krBn2Q1/3KN3/3n2Nq/1p4b1/1qQ1rnB1/Rb1R3p/1N1Rr2P/1nr4b b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Na3 g4 Be3 g3 Bf2 gxf2+ Kd2 exf6 Nb1 f5 Qe1 f4 Qc1 Bh6 Qd1 Bf8 Kd3 h5 Kc4 d5+ Kb5 Kd7 g4 Kc7 c4 f5 e4 h4 a4 f3 a5 f4 c5 b3 g5 d3 a6 d2 e5 d4 e6 d3 a7 b2 e7 h3 e8B Be7 c6 Qd4 g6 Nf6 g7 Nh5 Qc1 d1N g8R d2 Bd3 f1R Qc5 f2 Qa3 f3 Ra2 Nc3+ Ka5 d1B Rg7 b5 Be2 Re1 Rg3 f1Q Qc5 f2 Bd7 Ne4 Nd2 b1N Rga3 Nd6 Ngf3 Bb3 Nh4 Re8 Nc4 Bb7 Rc2 Qe3 Nb2 Qh6 Qc4 Nf4 Rg1 Rc1 Rg3 Qe1+ Rgc3 f1R Bf5 Qg3 Rd3 Rf2 Bh5 Qgg7 Rcd2 Re2 Kb4 Qc3+ Kc5 Bd8 Bf3 R8e6 Bh5 Kc8 c7 Nc6 Kb6 Rb8 a8Q Qb4 Ng6 Bf6 Qd5 Bg5 Qa4 Qc3 Bhg4 Nd8 Qac4 Bc6+ Kc5 Kb7 c8N Re7 Qg8 Bh1 Bd7 R7e4 Nce7 Qa5 Bdf5 Ka8 Bc8 N8f7 Kc6 Nd8+ Kd7 Qa4 Ba6 Qb4 Bc8+
4K1Q1/4RN2/2nB1Qqp/3rb1pP/1N2bkb1/3Qqq1n/qR2BR2/3n2rn b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 Ke2 Kd7 Ke3 Ke6 Kf4 c5 Kg5 Ke5 a4 b5 h4 h6+ Kg6 e3 Kf7 g5 f3 g3 d3 b4 h5 e2 a5 e1N a6 c4 a7 g2 Rh3 b3 Ra6 b2 Rh1 c2 Ra5+ Qd5+ Ke8 c3 Rh3 Nc6 Rh2 Bg7 Be3 c1Q Bc5 c2 Nh3 g1N Ra3 Qf4 Nd2 c1Q Ne4 b1B Nhf2 Nh3 Nd6 Qc2 Rb3 e6 Rb2 Nf6+ Kf7 Rd8 Rb7 Qg4 Re7 Ng2 Bb4 Rb8 a8Q Ne3 Bc5 Qda2 d4+ Kf4 Qd2 Ne4 Nd3+ Kg3 f4 e5+ d5 Nef2 f5 e4 f6 Nh1 Re2 Rb2 Nb4 Qf4 Qc3 Bg4 Rd2 Rd7 Qg8 Qd3 Rh2 Rg2 Ke8 Rg1 f7 Nd1 f8R e3 Rb2 e2 Qa3 Qe4 Rf2 e1Q Nf7 Qef3 d6 Qee3 Be2 Qg6 Qa6 Be4 Qd3 Rb7 d7 Rb5 d8Q Kf4 Q8d6+ Be5 Qe6 Ra5 Bd6 Rd5 Qf6+
Q2qr1b1/5qk1/n1BRN1qp/BPN1qR2/2n1r3/b1BrQ1p1/3n4/Rn2K3 b - - 0 1 illegal: No proof kernel
2nQr1Bn/N3RnRK/3k2pb/1Rq5/1Bp2q1r/2N1P2q/3Nb3/2b1bQn1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 c5 d4 f5 a4 b5 d5 g6 e3 f3 Kg3 c3 Kf4 c2 a5 c4 d6 f2 h5 g3 h6 g2 h7 b3 a6 b2 a7 b4 Rh4 b3 Qg4 Bh6+ Qg5 Ne7 Ra5 Qf8 Nh3 g1B Be2 f1Q+ Nf2 Qh3 Nd2 b1N Rg4 b2 Ke5 f4 Rc5 f3 Rb5 Nc3 Nb1 Ne4 Qf4 Ng5 Nd2 b1N Nfe4 f2 Ba3 f1Q Bb4 c1B Nc3 Bf2 Bf3 Nf7+ Kf6 Be1 Bd5 Nbc6 Qf2 Bb7 Re4 Re8 a8R Nce5 Ra7 Nc8 Be6+ Kc6 d7 Qc5 d8N+ Kd6 Nc6 Ba8 Qf5 Qf4 Rc7 Bb7 Na7 Bc6 Rbb7 Ba4 Rb5 Bd1 Bd5 Be2 Re7 Rhg8 h8Q Rg7 Qf8 Nh8 Bg8 Nef7 R4e5 Rh7 Rbb7 Qd4 Qf1 Qf4+ Rf5 Na3 Rbc7 Nb5 Rb7 Nd4 Rbc7 Rd8 Qe8 Nf3 Qf8 Rd7 Qd8 Ng1 Rb7 Bf8 Rc7 Rh4 Rb7 Bh6 Rb5 Bg5+ Kg7 Bh6+ Kh7 Bg3 Qa5 Rd8 Rh5 Re8 Qd8+ Qd7 Rhe5 Be1 Re4 Ne5 Rg7 Nef7 Qa5 Qdg4 Re7 Qh3 Qd8+
1rQ3nR/1nN3qR/4rp2/3Bk1q1/NQ1B2Rp/n1r2P1b/3bb2K/1n2b1Q1 b - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 a4 Kd7 d4 Kd6 g4 e5 d5 b5 g5 h5 g6 c5 g7 h3 a5 h2 a6 c2 a7 e3 Qd4 c4 Ra2 b4 Bd2 c1Q+ Ke2 e4 Qc3 h4 Nf3 f6 Be1 b3 Bh3 b2 Kf1 e2+ Kg2 e3 Na3 b1N Qa5 c3 Nd4 c2 Ne6 Ke5 Rg1 h1B+ Kh2 Bf3 Qb4 Nc6 d6 Na5 d7 Rb8 a8Q Qc7 d8R Nb7 Nc5 Bd7 Bg2 Bh3 Bd2 e1N Na4 e2 Be3 Qd7 Bc5 Qg5 Nb5 c1R Nc7 Rc3 Rc2 Bh5 Bd5 B5g4 Rd2 Nc2 Bb6 Bf3 Rg4 e1B Rd1 Be2 f3 Nca3 Bd4+ Kf5 Rc8 Bc5 Rd2 Bb6 Rf8 Ba5 Rf7 Re8 Qc8 Re6 Rf8 Nh6 g8Q Qdg7 Ba7 Ke5 Rf7 Qf8 Rh7 Qfg7 Bd4+ Kf5 Qgf8 Ng8 Rb2 Bd2 Qfd6 Be1 Qg3 Bd2 Qg1 Be1 Be3 Ke5 Rc2 Bd2 Rc1 Be1 Bd4+ Kf5 Rd1 Rc5 Bc3 Nh6 Qbd4 Rb5 Bc6 Rd8 Qcd7 Rb8 Qc8 Rb3 Qb6 Bb4 Rd8 Ba5 Bd4 Bad2 Rg8 Rc3 Rgh8 Ng8 Qb4 Nc2 Rg3 Nca3 Bd5 Kf4 Rg4+ Kf5 Ba7 Ke5 Bd4+
b1Q1r1R1/1B4bQ/KR2Pq1n/3k1qnb/2pB1p2/4r3/2nrbN1Q/3r1RN1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Ke7 Kd2 Ke6 g4 b5 a4 h5 e4 f5 a5 c5 e5 h3 a6 c3+ Kd3 c4+ Kc2 h2 a7 h4 g5 h3 g6 f3 g7 f2 Ra2 f4 Bd2 b3+ Kc1 b4 Ra6+ Kd5 Rf6 c2 Kb2 c1R Be3 Na6 Bd3 f1B Rb6 Be2 Na3 Qf6 Qc2 Nh6 g8R Nc7 Rc6 Re1 Nb5 Bg7 Nd6 Ne6 Ne4 Ng5 Nf2 Bcg4 e6 Re8 a8Q Bh5 Qb7 Rd1 Qc7 Rd2 Qa7 Bf8 Qh7 Bg7 Ka1 b2+ Ka2 b3+ Ka3 b1Q Ka4 b2 Kb5 Rb8+ Ka6 Re8 Qa4 Qc2 Qa2 b1N Bf5 Na3 Bg6 Rf8 Be8 Qcf5 Bd7 Be8 Bc8 B8h5 Bb7 Re8 Nd3 Ke4 d5 Nc2 Nf2+ Ke5 d6 Kd5 Qg6 Rh7 d7 Rh8 Bd4 Rh7 Nf3 Rh8 Rb1 h1B Rf1 h2 Ng1 Bg2 Qb2 h1R Qh7 Rh3 Qa2 Re3 Qb2 Re7 d8Q+ Rd7 Qc8 Bh1 Rd8 Re8 Qa2 Re7 Rh8 Re8 Rg8 Rd1 Rc7+ Kd6 Bc5+ Ke5 Bc6 Beg4 Ne4 Ne1 Qh2 R7d2 Nf2 Nc2 Bd4+ Kd6 Be4 Bhf3 Rc5 Be2 Bh1 Bgf3 Rc7 Ba8 Bb7 Re7 Rc5 Re8 Rc6+ Kd5 Rb6+
N3n1bK/1QbQ1q1B/4pB2/2r2q2/4pkn1/Q1B1q2R/1rR2rrP/3Nqn2 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 a4 Kf6 c4 Kf5 f4 b5 a5 g5 a6 d5 c5 b3 a7 b2 c6 b4 c7 b3 Nf3 g3 Ne1 d3 Kc3 g2 Kd4 g1Q+ Be3 d2 Bc4 g4 Bf2 g3 Ra5 g2 Ra1 Nf6 Bd3 Ng4 Nc2 Qe8 Ne1 Be6 c8Q Rh5 Na3 b1Q Nec2 b2 Qf3 d1N Qd7 Nde3 Nc4 Na6 Be1 Nc7 Ra3 Qf7 Bc3 Ne8 Nb6 Nf1+ Qe3 Rb8 a8Q Qe1 Qab7 b1Q Na8 Qgf2 Rb3 g1R Ra3 Qfe2 Qh3 Rg2 Ne3+ Kf6 f5 Kg5 f6 Kf4 Nd1 Rf2 Qa7 Rb2 Qab7 Bh6 Rg1 Bg5 Rg2 Bh4 Kc5 Bg3 Kc6 Qe3 Rb3 Qg6 f7 Qa2 f8B Qf5 Ra3 Bg8 Bfg7 Rg5 Bgf6 d4 Bc4 d3 Bf7 e6 Bg6 d2 Bh7 Rg7 Rb3 Qaa7 Ra3 Nc7 Kd6 Rg5 Ke7 Ne8 Kf8 Rg7 Qd8 Rc7 Rb3 Rc5 Qdd5 Rf3 Re2 Rf2 Qdd7 Rg2 Nf2 d1R Rc2 Rdd5 Nd1 Rdd2 Ra3 Rdf2 Rb3 Nc7 Kg7 Ne8+ Kh8 Qb6 Qa4 Qc7 Qa3 Qf7 Qh5 Q5g6 Qhd5 Qf5 Qd4 Kf3 Qdd7 Bc7 Rb4 Kf4 Rd4 Q3e2 Rd3 Q2d2 Rg3 Qde3 Rh3
3rr1nq/RKB1bQrN/1R2p1N1/b1r4p/3bk3/1Nn2B1P/5Q2/2Bbqq2 b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 Ke2 Kf7 Ke3 Ke6 a4 Kd5 f4 b5 d4 h5 a5 c5 a6 g5 a7 c2 f5 c4 f6 g3 f7 g4 h3 b4 Na3 b3 Bb2 c1R Bd3 g2 Bf1 g3 Rh2 c3 Qg4 c2 Ne2 g1R Nb5 g2 Qf3 Nd7 Qf2 Nb6 Rh1 Rb8 a8Q+ Bb7 Qa6 e6 Qa7 Be7 f8N Na4 Nh7 Nc3 Ba3 b2 Nf4+ Kc6 Bd3 b1Q Ng6 Kd5 Be2 Qe8 Rh2 Rd8 Bf3 Qb4 Bb2 Qc4 Ra6 Qf1 Rb6 Ba8 Qc7 Bc6 Qf4 Qf8 Qf7 Qg7 Na7 Ba4 Nc6 Qe5 Na5 Qf6 Be2 Qg7 Kf4 e3 Nb3 Qe1 Bg4 e2 Ke3 Qf1 Ba3 e1B Bf3+ Kc4 Kf4 Kd3 d5 Qf8 d6 Qg7 d7 Re8 Bg4 Qf8 Kg3 Ke4 d8B Na2 Be2 Nh6 Na5 Bd2 Bc7 Rc8 Nh4 Rd8 Q2f6 Qg7+ Bg4 Rhe8 Bb2 Qh8 Bd1 Bb5 Nb3 Ng8 Bg4 Be2 Ba3 Re1 Qb2 c1Q Bf3+ Ke3 Qc2 Qca1 Bb2 Rc1 Qc5+ Kd3 Ba3 Bb4 Kf4 Rc3 Bb2 Qae1 Ba3 Bd1 Bc1 Rh1 Qg1 Rc2 Qc5 g1B Re2 Bf2 Re4 Bc3 Ra4 Rg1 Ra7 Rg7 Ng6 Ba5 Qe3+ Kc4 Qd2 Bd4 Qh2 Kd3 Qf2 Be3+ Ke5 Rc4 Rab7 Nc3 Ra7 Bh4 Qd7+ Bd4+ Kd6 Bhf6 Nd2 Rc5 Nb3 Rf5 Kc6 Rc5+ Kb7 Bg5 Qf7 Be7 Be2+ Ke4 Bf3+
K7/4q2b/RrNpn3/q3pN2/R1Rn2b1/3qQb1B/rnBb2P1/k1B1q1Q1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Ke6 a4 Ke5 f3 h5 c5 b5 a5 d6 a6 h3 a7 e3 Kd3 h4 c6 h2 c7 h3 Qc2 e2 Qa4 e1N+ Ke2 b3 Bb2 b4 Bc1 b2 Qe8 d3+ Ke3 b3 Qa4 d2 Bc4 d1B Qa2 Nc6 Nc3 b1B Nd5 b2 Be2 Nh6 Qa5 Bh7 Bd3 b1Q Qb6 Nd4 Ra4 Nf7 Bc2 Bg4 c8B Ng5 Ne2 Nd3 Ng3 Nb2 Nf5 Bh6 Nb4 e6 Ra6 Qe7 Nc6+ Kd5 f4 Kc4 Rf1 Kc3 Rf3 Rb8 a8R h1Q Ra4 e5 R8a6 Nge6 Ke4+ Nd3 Kd5 h2 Re3 Bdf3+ Re4 Qe1 Qa7 h1Q Bd7 Nb5 Qe3 Rb6 Nh4 Rhb8 Nd8 Qd2 Qg1 R8b7 Qh2 Bh5 Bd1 Nf8 Bh3 Qhe1 Qg1 Rc7 f5 Ne6 f6 Bhg4 f7 Be2 Reb4 Nbd4 f8Q Rcc6 Qf4 Bef3+ Qe4 Rc4 Nf5 Qda2 R4a5 Bd2 Rc5 Qa5 Ra4 Be2 Qee3 Qc2 Bb2+ Kb3 Ba3 Ka2 Bb2+ Kb1 Bc1 Qcc3 Bb3 Rcb4 Bd1 Rb2 Bb3 Ra2 Bd1 Nb5 Bc2+ Ka1 Rc8 Nb2 Rcc4 Rb8 Kc6 Qd3 Nb7 Q7h4 Nd8 Bef3+ Kd7 Rb7+ Kc8 Nbd4 Nc6 Rb5 Ra3 Qe7 Raa4 Rc5 Kb8 Rb5+ Ka8 Rb4 Rc5 Rb6 Rcc4
q1NN1q1Q/1B3q2/k1prB3/n1q1B1p1/PR2r1R1/n1r3b1/5nr1/KQ1b1N2 b - - 0 1 illegal: No possible last move
n3q3/B1R1Qq2/bP1NQn2/6Bq/2Br1NN1/2q2p1n/Kn1p2r1/b1bR3k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 b4 Kf6 c4 Kg5 Kc2 Kh4 Kb2 a5 e4 d5 b5 f5 c5 g5 b6 f3 c6 f2 e5 g3 c7 g4 e6 f4 h3 g2 e7 Kg3 e8N a3+ Kb3 a2 h4 a4+ Kb2 d3 h5 d4 h6 d2 h7 d3 Ng7 a3+ Kb3 Ra4 Qe1 d1N Qe2 d2 Qe4 Na6 Qa8 Nb2 Nc3 Nf6 Nd5 Rd4 Nb4 Rg8 h8B Qe8 Rb1 a1B Nd3 a2 Qe4 Ba3 Nf3 g1N Nh2 Nh3 Qe7 Bb7 c8Q Nc7 Qcd7 Na8 Qde6 f3 Nf4 Ba6 Q7d6 Qh5 Qde7 Qf7 Ne8 Rg7 Bg2 f1Q Nd6 Qe2 Bf1 Kf2 Rg1 g3 Rh1 g2 Ng4+ Kg3 Rh2 g1Q Rh1 Nd1 Bb2 Qgh2 Rc1 Qe5 Bc3 Nb2 Bb4 Qhe2 Rc7 Qeh5 Bc3 Rg6 Bg7 Qee5 Bh6 Qb5+ Bb4 Qbe8 Bg5 Rg8 Bb5 Rg7 Rd1 Rg6 Bf1 Rg8 Nh6 Kh2 Ng4+ Kh1 Bc3 Nc4 Bb4 Bc1 Bc5 Bc3 Ba3 a1Q Bb2 Qa5 Ba1 Qe5 Ka2 Rg6 Bb2 Qc5 Ba3 Ba1 Bb4 Nb2 Bc3 Rd3 Be5 Qc3 Bh6 Qeg8 Nc4 Rd5 Rd7 Rd4 Nge3 Nh7 Bb8 Qg5 Nd6 Nf6 Rc7 Qgc5 Ba7 Rg2 Ng4 Qch5 Bg5 Qge8 Bc4+
5Qr1/NRn1k2b/1pn1n1Bb/1N2P2q/8/1b2B1p1/2nKbQ1q/1q2rRNB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 f5 h4 g5 a4 d5 c4 d3 e5 b3 a5 d2+ Ke2 f3+ Kd3 g3 c5 d4 a6 g2 c6 f4 h5 b2 h6 f2 h7 f3 a7 g4 c7 b6 Rh5 g3 Be2 f1B Qb3 d1B Ra2 f2 Rf5 Ne7 Ra3 Nbc6 Ra1 Nd5 Bf4 Rg8 h8Q Ke7 Qb5 Bb3 Rh5 Bf5+ Kd2 d3 c8B Nc7 Rh4 Bh6 Bg4 Be2 Bf3 Bh7 Nc3 b1Q Bf5 f1Q Qa5 Qf2 Be3 Qe8 Nb5 Qh5 Qa2 Raf8 a8N Rd8 Kc3 d2 Bg6 Rc8 Bd5 d1N+ Kd2 Rcf8 Rh1 Rf4 Na7 Re4 Nf3 g1N Rh3 Nb5 Nc7 Qh2 Rh4 Nh3 Ng1 Ng5 Rf4 Qg2 Rf1 Qgh2 Qc2 Ne6 Qb2 Nbd4 Ncb5 Nc3 Ra2 Nc2 Ra6 Ra4 Bh1 Re4 Ra1 Nd5 Rf7+ Kd8 Rb7 Ndc7 Qa2 Ke7 Qb2 Qa2 Rc1 Qb1 Rf1 Ra4 Qd4 Ra1 Qf4 Qb2 Qf3 Re1 Qf2 Qb1 Qhf6+ Kd7 Q6f5 Ke7 Qf8+
n1NBK3/Qb4R1/pB1r4/2q1Q1rQ/5p1q/q7/Pb1nBbkb/3N1rRr b - - 0 1 illegal: No possible last move
1QNrR3/n1BBnb2/p3P1rq/1q5Q/2q1n3/RN6/p1Q1r1kb/3KBq1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 Ke7 b4 Kd6 e4 Ke5 g4 f5 c5 d5 b5 h5 c6 h3 c7 a3 g5 a2 b6 a6 b7 f3 g6 f2+ Kd2 Kf4 e5 Kg3 g7 h2 Bb2 d3 Qe1 d4 Kd1 f4 Nf3 d2 Bg2 h4 Ng1 h3 Kc2 d1N Qf1 f3 Nd2 d3+ Kc1 Rh6 Qe1 Nc6 b8B Qh4 Nb1 Nge7 g8Q+ Rg6 Bc3 Na7 Nd2 Be6 c8Q Qc4 Qe2 f1Q Nb3 f2 Qh5 Bf7 Bc6 d2+ Kc2 Qfe2 Bd7 f1Q Bc7 Nf2 Re1 Kg2 Nf3 d1R+ Nfd2 Ne4 Qgh7 Rb1 Qb8 Rb2+ Kc1 Qb5 Nc4 Rd2 Nd6 Qec4 e6 Re2 Kd1 Bh6 Nc8 Bf4 Nb6 Qf3 Rhf1 h1N Nc8 h2 Bb4 Qe3 Rf3 Bd6 Ref1 Qh6 Be1 Rg5 Nd2 Bg8 Rh3 Nhg3 Qf5 h1Q Nb6 Nc5 Qbf8 Rg6 Qc2 Nce4 Qc8 Qg1 Rf8 Qf1 Re8 Nh1 Ra3 Bh2 Nb3 Bf7 Qb7 Rc8 Qb8 Rd8 Nc8
b2qQ1rQ/3B1b1p/r1q3N1/N1p1r2B/2RR1K1n/4rn1q/3P2R1/Bq2b1k1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Ke6 a4 Ke5 e4 f5 g4 b5 a5 h3 a6 c3 a7 h2 g5 b3 g6 b4 g7 c2 Ne2 b2 Nd4 b3 Qe2 Be6 Ra6 Bc5 Ra5 Nh6 g8Q Nd7 Qg3 Rg8 Qg5 Bf7 Rg1 h1B+ Kf2 f3 Ke3 f2 Qg2 f4+ Kf3 Nf5 Na3 b1R Rb5 b2 Ne6 c6 Ng7 Nh4+ Kg4 Kd4 e5 f3 e6 Ne5+ Kf4 Ra1 e7 b1Q Nc4 Ra6 Ba3 c1Q e8B Rb8 Rb4 Rb5 Qg3 Qc3 Bg2 f1Q a8R f2 Bf3 Qh3 Bd7 f1R Bb2 Re1 Bh5 Nef3 Qe8 Re3 Ne6+ Kd3 Rc8 Ke2 Rg2+ Kf1 Ba1 Ba7 Qg5 Rbe5 Qg7 Qcc2 Nf8 Qg6 Re2 Kg1 Na5 c5 Rc4 Bb8 Qh8 Qc6 Rg2+ Kf1 Rc7 Re6 Rg6 Qcb7 Bc6 Ng5 Ba4 Kg1 Rg7 Qbc8 Bb5 Ba8 Ba4 R6e5 Rd7 Rd5+ Rd6 Qcc7 Bd7 Qc6 Rg6 Kh2 Rg7 Ngf3 Rg2+ Kh1 Re2 Kg1 Ng6 Qh1 Kg4 Qh2 Rf6 Bg3 Rff4 Rde5 Rfd4 Be1 Rf2 Qg2+ Kf4 Qh3 Rg2+
n3QR2/1r2q1P1/2Kpn2p/1QNr1rbn/qb3Nbk/3R4/1rBN3B/6bR b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Kf6 g4 b5 a4 e5 c4 h3 f5 d6 a5 b3 a6 d3+ Ke3 Kg5 c5 h6 c6 b2 a7 h2 c7 d2 f6 b4 f7 b3 Bb5 Nc6 Bf1 Nf6 Bh3 Kh4 g5 Nd4 g6 Nd7 g7 Be7 f8R Ne6 Bg4 Nb6 Qf3 d1Q Qf4 Bg5 Ra4 Qe7 Rf5 Rf8 Na3 b1R Ra6 b2 Rf6 Qa4 Ne2 Rb8 a8N Rb7 Bd2 Rd1 Nc4 b1R Bc3 Rd4 Nd2 Rd5 Rf5 Bd7 c8Q Rb2 Nc7 Na8 Qe8 Rf6 Rb6 Bc8 Rb3 Bd7 Ra1 h1N Na6 Ng3 Nc5 Nh5 Bd4 Rf7 Rd3 Bc8 Ng1 Rf8 Nh3 Rf7 Rh1 Rf6 Kf2 e3+ Kf3 e2 Ke4 e1B Qf1 Bf2 Bd1 Bg1 Bc2 Bd7 Rf2 Rf5 Qb1 Ra2 Qb4 Rb2 Be3 Bc8 Bf4 Bd7 Bh2 Bc8 Nf4 Bd7 Kf3 e4+ Ke3 Bc8 Qbb5 Bd7 Ke2 e3 Kf3 e2 Ke3 e1B Kf3 Qa7 Ke4 Qa4+ Nc4 Rf7 Rd1 Nec7+ Nfe6 Bb4 Rd3 Re5+ Kd4 Bc8 Nd2 Rf8 Kc4 Bd7 Rf6 Bc8 Nf4 Bg4 Rf7 Ne6 Rf5 Re4+ Kd5 Rd4+ Kc6 Rd5 Rf6 Rf7 Rg6 Rff5 Rf6 Bh3 Rf7 Bg4 Rf8
nB6/1kbQ2pb/r7/n1qrR2N/Pn1R2bK/2r2bB1/1pQ2Q2/2Nq1n1B b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 d5 c4 Kd7 f4 Kc6 Kf2 e5 Kg3 b5 h4 e3 f5 e2 c5 e1R f6 b3 f7 d3 h5 e4 h6 e3 h7 b4 Be2 b2 Na3 b1B Nc4 d4 Bd2 b3 Bf1 e2 Qc1 b2 Qc2 Rc1 Be1 d2 Qd1 d3 Nd6 Na6 Rh2 Ne7 Nb7 Rc3 Ra2 Nc7 Nd6 Ra6 Rh5 Na8 Ne8 Kb7 Kh4 g3 Ra1 g2 Qc2 d1B Re5 d2 Nf6 Bg4 Bg3 e1N Nh5 Nd3 Ne2 g1Q Nc1 Nb4 Bg2+ Bdf3 Bh1 d1N Ra3 Rg8 h8Q Ne3 Qh6 Qb6 Qf6 Nec6 Qf4 Bd6 f8B Bb8 Bd6 Rd8 Ra1 Na5 c6+ Kc8 c7 Nf1 Qfd2 Qbc5 Qf2 Kb7 c8Q+ Ka7 Qe1 Bc7 Qd7 Kb7 Ra3 Qgd4 Qef2 Qd1 Rb3 Rc4 Rd3 Rc3 Qce2 Bc2 Rd4 Bh7 Qc2 Rf8 Re1 Rf5 Re8 Rd5 Re5 Qc4 Bc5 Qb5 Ba7 Qc5 Bb8
NKN1r3/B3rpR1/6nb/r4qb1/b3q1n1/3N1p1n/1knQQR1P/3BbR2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 a4 Ke5 e4 b5 c5 g5 c6 d5 a5 d3 a6 Kd4 a7 b3 e5 b2 c7 g3+ Kf3 b4 e6 g2 e7 d2 e8N g4+ Kf2 b3 Qe1 d1R Ng7 f3 Kg3 Nf6 Kf4 g3 Ne8 Qe7 Nh3 g1B Ng7 g2 Ra3 Nc6 Qa5 Bd7 c8Q Re1 Qcd8 Bf2 Ba6 g1B Bb5 Ne5 Nd2 b1Q Ba4 b2 Ne8 Qg6 Rc3 b1N Ne4 Na3 Nc7 Re3 Qe8 Bh6+ Nhg5 Bh4 Nc5 Bgf2 Rc2 Qe6 Qe7 Rhe8 Ra2 Re2 Be3+ Kc4 Rg1 d4 Raa1 d3 Raf1 d2 Nd3 d1N Rg4 Bg7 Ne4 Be1 Rg2 Nf2 Bd1 Bh6+ Rg5 Rab8 a8R N6g4 Bc5 Rb4 Nd6+ Kc3+ Bd4+ Kd2 Rc8 Ba4 Na8 Re3 Rc3 Rb5 Nc8 Qd5 Qab4 Ra5 Ba7 Qh5 Kf5 Nh3 Qf4 Qc4 Rb3 Qd5 Rb2+ Kc3 Rbf2 Re2 Qc1+ Nc2 Qe3 Qe6+ Ke4 Kb3 Rg7 Ka2 Qg5 Ng6+ Qe5 Na3 Kd4 Qhf5 Qd2+ Kb1 Qee3 B4g5 Qe4 Qe7 Qe5 Nc2+ Kc4 Bb5+ Kd5 Qb7+ Kd6 Ba4 Qe6 Qb4+ Kc7 Qd4 Nc1 Kb2 Kb8 Re3 Qa6 R3e7 Qae2 Qde4 Nd3+
5r1R/3p3q/3NR1Pb/Q2p1r1Q/1RQ3bq/bNBK2bn/1r1nn2k/1B4r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 d4 gxh4 e5 c6 d5 cxd5 e6 fxe6 Nd2 e5 Nb1 e4 Kd2 Kf7 g4 Ke6 a4 Ke5 c4 Kf4 a5 h5 f3 Kg3 c5 e5 g5 b5 c6 h3 c7 h4 a6 h2 g6 h3 f4 e3+ Kc2 b3+ Kc3 e2 f5 e1B+ Bd2 b2 a7 b4+ Kc2 e4 f6 b3+ Kc3 e3 f7 e2 Na3 b1N+ Kd4 b2 Nc4 Ba3 f8R Rh5 Nd6 Qh4+ Ke3 Nh6 Nb5 Rf5 Rd8 Ba6 c8Q Nc6 Bc1 Nd4 Bd2 Ng4+ Kd3 Nf2+ Ke3 Qh7 Ba5 Nd2 Bg2 b1R Be4 Rb2 Qc4 Rc8 Rg8 Rcf8 Nf3 Kg2 Rf1 h1R a8Q h2 Nd6 Nh3 Bc3 Bg3 Re1 Rg1 Rb1 h1Q Kd3 Bf4 Qd8 Bh6 Qa5 Kg3 Rh8 Bb5 Ng5 Kh2 Ne6 Ba4 Nc5 Bb3 Rf1 e1B Qh5 Bg3 Rfe1 Bd1 Nb3 Bg4 Re3 R5f6 Bf5 Ne2 Re6 R6f7 Rf1 Rf6 Rf4 R6f7 Ke3 Rf6 Bb1 Rf5 Kd3 Qg2 Qc8 Qf2 Rb4 Qf4 Qcc7 Qg5 Qc6 Qh4 Qc4
1bn5/2BpQP2/3R1r1r/2pqBq2/2r4b/K7/n1NnN2b/QknBQbR1 b - - 0 1 illegal: No proof kernel
N2N1k1n/1KpbQq2/BB1QbRnP/5r1N/1n1n4/2Rp3r/7b/2Rqq1b1 b - - 0 1 illegal: No possible last move
2K2Q2/2pBPn1k/1b2rpb1/NBRnQr2/4qNq1/3r1b2/R5q1/B2Qq1r1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 b5 Kf3 h5 Ke4 h3 Ke5 b3 e4 h4 d4 f3 a4 f2 g4 f6+ Kf4 Kf7 e5 Kg7 d5 b2 a5 h2 a6 c3 d6 b4 a7 b3 d7 c2 Kf5 h3 Ke6 Nc6 g5 Nge7 g6 Bb7 Bb5 f1R Ne2 Qc8 Bd2 c1R Rg1 h1Q Rg5 h2 Be1 Nd5 Ra3 Bc5 Bc3 Rd8 Nf4 Qg2 Nd2 b1Q Ba1 h1Q Nc4 b2 Ra2 Qbe4 Na5 b1B Qh5 Kg8 g7 Bb6 Qd1 Rb8 a8B Kh7 Qd4 Rce1 Qe3 Rg1 g8Q+ Kh6 Qf8+ Kh7 Kf7 Qh4 e6 Bc2 e7 Ne5+ Ke6 Nf7+ Re5 Ref1 Qe2 Bc6 Bb7 Qe1 B7a6 Bd3 Ba4 Ra8 B6b5 Ra6 Qd1 Qef3 Qe2 Bg6 Rg5 Qb7 Qe5 Qfg4+ Rf5 Rda8 d8Q Rf3 Qd6 Rd3 Qb4 R8a7 Qd2 Qa8 Qd1 Bb7 Nb3 Ra5 Bd7 R7a6 Bab5 Ne3 Qe4 Rf1 Bbc6 Rg1 Bc8 Bd4 Kd7 Rc5 Bb5 Re6 Qd5 Qa4 Qd6 Bf3 Na5 Rce5 Qd5 Bb6 Rg5 Qe4 Qd6 Nh8 Kd8 Rc5 Bcd7 Nf7+ Kc8 Qed2 Rd5 Qe1 Rd4 Rd5 Rc4 Rf5 Rc5 Nd5 Qe5
q4Q2/qP3RbR/Nn1N1N2/1KB1n3/r4b1p/1BqnB1p1/2b1b1r1/Q3nk2 b - - 0 1 illegal: No proof kernel
3K2Q1/1P1p4/q1qBkpQb/r4N1B/1nbrBr2/bbN2N2/1q5R/3R1nr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 h5 Kc4 a5 Kd5 h3 b4 a3 e4 a2 c4 a4 g4 h4 e5 a3 e6 h2 g5 h3 g6 d3 b5 f3 c5 f6 g7 d2 b6 f2 c6 Rh4 c7 Na6 Qg4 d1B Qg6 Nb4+ Kc5 Ra5+ Bb5 f1R Bh6 Rff4 Qd3 Bb3 Qh7 Ba6 b7 Qa8 Bg5 Nh6 Kb6 Nf5 c8Q Ne3 Kc7 Nf1 Bc6 Bac4 Qg6 Qa6 Nc3 Rd4 g8B Bh6 Rd1 a1Q Nf3 a2 Bf7 Qb2 Be4 a1B Qcg8 Rf4 Kc8 Kd6 Bh4 Ke7 Bg3 Kd6 Qf5 Ke7 Bh5 Kd6 Qfg6 Ke7 Rg1 h1Q Rg2 h2 Rgd2 Kd6 e7 Qg2 Kd8 h1R Rf2 Rg1 Rc2 Qh1 Rh2 Qhg2 Nh4 Ke5 e8N Qgc2 Ng7 Qg2 Bd3 Qgc6 Be4 Kd6 Ngf5+ Ke5 Q8h7 Ke6 Qh8 Qe2 Qhh7 Bb2 Nf3 Ba3 Qh8 Qb2 Qf8 Rh4 Bd6 Rf4 Qfg8#
R7/npK5/Q1bNk3/2nq2Q1/2r1nPQ1/1BB2R2/pq1b1qr1/n2N1rqB b - - 0 1 illegal: No proof kernel
1NB3Qq/1p1n1N1q/3n1p2/Q3R2r/1qQ4k/br1R1b2/nN1P1K2/n2r2Bq b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Ke7 a4 Kf6 g4 Kg5 e5 c5 e6 h5 a5 f6 e7 f3 e8N h3 a6 h4 a7 b3 Ra4 f2+ Ke2 b2 Bg2 f1R Ra2 h2 Be4 h3 Bd5 c3 Bg2 c4 Nc7 c2 Ra4 c3 Na3 b1Q Ra5+ Kh4 g5 Nh6 g6 Nd7 g7 Nf5 g8Q Rh5 Nc4 Ba3 Na6 Nd6 Re5 Qb4 Bb2 c1N+ Ke3 c2 Qe2 Na2 Bd4 c1N Nb8 Qe8 Nb2 Rd1 Qec4 Nb3 Kf2 Na1 Be4 Qg6 Bf5 Qh7 Be6 Nb6 Bg4 Bd7 Bf5 Bc6 Bc8 Be4 Qgd5 Nd7 Nf3+ Kg4 Rf1 h1Q Qa5 h2 Ng5 Bf3 Nf7 Kh4 Rg1 Rc1 Rg8 Rc3 Rg1 Rb3 Rc1 Qh8 Rc3 Qb1 Rce3 Qbh7 Rd3 h1Q Qd8 Rg5 Qg8 Rg1 Na6 Rb8 a8Q Rd1 Qa7 Ra8 Qb6 Ra7 Nb8 Ra5 Qbd8 Rb5 Qa5 Rd5 Re7 Rf5 Re5 Rh5 Ke3 Bg2 Ke2 Bc6 Bg1+ Be4 Qcc7 Bc6 Kf2 Bf3 Qc4+
3nk3/pb1B1N1q/QRr4R/nqq1r3/2b1N1q1/Q1B1B2P/p2K1b2/b4rQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 f5 b4 d5 e4 g5 c5 a3 c6 a2 b5 g3 b6 g2 e5 f3 c7 f4 h3 f2+ Kd2 f3 e6 d3 e7 d4 b7 g4 Qa4+ Qd7 Ba3 g3 Bb2 Nh6 Ba3 Nf7 Qc2 Qb5 Qc1 Rh5 Qb2 Nd8 Bc5 Re5 Bd6 Bg7 Be2 f1B Nc3 f2 Re1 Nbc6 b8B Na5 Bc5 Bb7 Nf3 g1Q c8Q g2 Qa3 Bh8 Bc7 Rb8 Qg4 Rc8 Ng5 Bg7 B7d6 Rc6 Nce4 Bf6 Bf3 Be2 Qc8 f1R Nf7 Qf2 Rd1 g1B Bg4 Qh4 Rb1 Bf2 Rg1 Qh7 Be6 Bh8 Rg6 Rf5 Rg1 Qa6 Neg5 Rc1 Qb8 Bc8 Qb5 Bb7 Be5 Qb6 Qa6 Bg7 Bcd6 Qc5 Rb6 Qb5 Bc5 Bf6 Bd5 Kd7 Rg4 Rh1 Rh4 Bf1 Kd1 d2 Kc2 d3+ Kc3 d1Q Rh5 d2 Rh6 Qh5 Bc4 d1Q Be6+ Ke8 Bd4 Qdg4 Kd2 Bc4 Bb4 Be5 Bdc5 Ba1 Bc3 Rf6 Bf5 Rfe6 B5d4 Kd7 e8Q+ Kc8 Qee7 Rc1 Qeb4 Kd7 Ne4 Ke8 Be3 Re7 Bc8 Qhc5 Qb1 Re5 Bf5 Rg1 Qf1 Rh1 Qg2 Rb1 Qg1 Rf1 Bd7+
1R1brB2/p1N1r3/1q1r1k2/b1b2p1r/1q5n/QR3Q1q/RKBPn2N/1b1B4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Ke7 b4 h5 e4 c5 b5 f3 e5 f2+ Ke2 h3 g5 a3 e6 h2 g6 h4 b6 c3 b7 c2 g7 a2 Bh3 f1R Bg2 c4 Na3 c3 Be4 h3 Nf3 Nh6 g8B Nf5 Qe1 Nc6 b8Q Nh4 Nc4 Kf6 e7 Rh5 e8R Be7 Nd6 Bf5 Kd3 Nd4 Qb6 Ne2 Qb1 Qb6 Qb4 Bd8 Rg1 h1R Rg2 h2 Ba3 c1B Kc4 c2 Qg3 Re1 Rb1 a1B Kb3 Bc3 Nb5 B1b2 Rf8 c1Q Ra1 Qb1 Bc2 Bh7 Qa4 Ba5 Ra2 Rc8 Bd6 Bd4+ Ka3 Ra8 Nc7 Bc5+ Qb4 Rh6 Qh3 Rh5 Rg3 Rhf1 Re8 h1Q Nh2 Rf4 Rd3 Rd4 Bf8 Rd6 Rb3 Qf1 Qe3 Qh3 Qf3+ Bf5 Bd1 Rb8 Bh7 Rb7 Na6 Re7 Nc7 Qe4 Bg6 Qf4 Kb2 Bb1 Bf5 Qc4 Qa3 Qcb4 Bc8+ Kg6 Ba6 f5 Bd3 Kf6 Be4 Rg1 Bec2 Rg8 Na6 Bc7 Rb8 Bd8 Nc7 Rgh8 Bh6 Rhe8 Bf8
BK3bNN/4N1nq/kQ1nrR2/8/B1rp1nr1/1b2p1rR/2Prr2n/3QB3 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 d5 g4 Kd7 f4 Kc7 a4 Kb6 f5 e5 f6 h5 f7 b3 g5 e3 Kf3 e2 a5+ Ka6 g6 b5 g7 e1R Ra3 e4+ Kf4 b2 Ke5 e3 Bh3 b4 Ne2 b3 Rf1 d3 Ng1 d2 Qf3 d1R Nd2 b1R Qg4 b2 Rf3 d4 Rd3 Qc7+ Kd5 Rh6 Qf5 Be6+ Ke4 Nc6 Rf1 Nd8 Qc5 Re2 Qa3 Bb3 Rf6+ Ne6 Qb4 Ne7 g8N Nf5 Ngf3 Nd6+ Ke5 Rc8 Nc4 Rdd2 Ng5 Nf4 Bd7 h3 Ba4 h2 Nb6 h1R Nd5 h4 Nde7 h3 Rc3 h2 Rc5 Rg1 Rd5 Rd3 Bd2 h1N Be1 Ng3 Qd2 Qb7 Qd1 Nf5 Rb5 Rg3 Rb6+ Ka7 a6 Ng7 Rc6 Qd7 Rc7+ Kb6 a7 Rdd2 a8B Ka5 Rb7 Rc4 Rb6 Rh4 Rh6 Rhg4 Rh3 Nb5 Rf6 Nd6 Nf3 Qa7 Nh4 Ka6 Nhg6 Ra1 Nh8 b1N B4c6 Raa4 Be8 Rab4 Ba4 Rb6 Nc8 Be7 f8Q Qb7 Qe8 Bf8 Qc6 Qf7 Nce7 Qg6 Qc7 Qh7 B8c6 Rd3 Be4 Nd2 Ba8 Nf1 Qc5 Nh2 Qc6 Nfh5 Kd5 Rdd2 Qc5 Rb7 Kc6 Rb6+ Kc7 Nf4 Qc6 Nb7 Qc5 Re6 Kb8 Nd6 Qb6+
N1Nrn2K/Bnrq1b1P/Q1b2N2/bB1Bb3/6p1/2R1Q3/2pb1b2/r1rk3R b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 g5 h4 c5 a4 b5 f4 e3 d4 e2 d5 e1B f5 b3 a5 b4 f6 c3 d6 c4 d7 c2 f7 c3 a6 b2 a7 b3 Kf5 e5 Ra5 e4 Ba6 e3 Bb7 e2 Bf3 Nf6 Nd2 b1R Ne4 b2 Ra3 Ne8 Ra6 Rh7 Nh3 Bg7 f8N Be5 Ne6 Bb7 Qd6 Bc6 Be3 c1R Ra3 c2 Rc3 Bd2 Nc7 e1B Be2 Ra1 Nhf2 b1B Bb5 g3 Ng4 g2 Qd3 g1B Nd6 Na6 Nc8 Rb8 a8B Bgf2 Ba7 Ba2 Qe3 Nc5 Bb7 Qe7 d8Q Bf7 Qd6 Qd7+ Qe6 Rg7 Ba8 Nb7 Nf6+ Kh6 h5 Rh7 Rd3 Ba5 Rc3 Bd2 Nd6 Rd8 Nc8 Nc5 Bb7 Rg7 Na8 Rh7 B7a6 Nb7 Bc4 Rg7 Bab5 Rh7 Bd5 Rg7 Qb6 g4 Qa6 Rh7 Ke4 Kg5 h6 Rg7 h7 Bab6 Kd3 Kf4 Qe7 Kg3 Qe6 Ba5 Ke4+ Bfe3 Kf5 Kf2 Bf1 Ke1 Bfc4+ Bg1 Bb5 Qc7 Qe7 Kd1 Qc5 Qd6 Qe3 Qd7+ Be6 Bg6+ Kg5 Re7 Kh6 Bh5 Bd5 Bf7 Rh5 Bf2 Rh3 Ned6 Kg7 Ne8+ Kh8 Qe6 Qg3 Rc7 Qe3 Qd7 Rh1+
K5n1/5P2/Nb2qRQp/Bn5n/3rR1b1/nn1p3B/k1nr3r/B1NNQr2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 e5 g5 a5 c3 a3 b5 h3 g6 d3 Ke3 Kc4 b6 d5 g7 d4+ Kf2 a2 b7 h2 f5 a4 f6 a3 f7 e3+ Kf3 e4+ Kf4 e2 Ke5 e1N Qc2 e3 Qg2 Kb3 c4 e2 c5 d2 c6 d1R c7 d3 Qe4 Nc2 Bh3 e1N Nc3 Qf6+ Kd5 Bg4 c8N Bc5 Nb6 Nc6 b8B Ra4 Bb2 Na7 Bc7 Nb5 Nge2 Rd2 Rf1 h1N Nd1 Ng3 Nd7 Nh5 Ba5 Bb6 Nb8 Rb4 Rb1 a1R Na6 a2 Rf4 Qe7 Kc6 Nca3 Rf6 Qe6+ Kb7 Nec2 Ka8 Rd4 Rc1 Rb1 Qh1 a1N Qe1 Ka2 Bbc3 Nb3 Ba1 Ne3 Rc8 Nec2 Re8 Ne7 g8Q Rc1 Qg6 Ng8 Ne3 Rb1 Qh4 Rf1 Nd1 h6 Qg3 Rh7 Qe1 Rg7 Qh7 Rg5 Qg6 Rgf5 Re7 R5f2 Re8 Rh2 Re7 Qd7 Re4 Qe6 Nc1+
K2Qr1br/1n3p2/3R2q1/k1pP3r/2QbbrrR/2N5/1NBNbn1B/2B4r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kc6 a4 Kb6 h4 c5 e4 g5 d5 b3 e5 g3+ Kf3 g2 Ke4 c3 e6 g4 h5 b2 e7 c2 e8N g3 h6 f3 h7 f2 Bd3 f1R Bh6 c1R Rh2 Qg5 Nc7 Ka5 Nc3 b1B Ra3 b5 Ra1 b4 Qc2 b3 Rh4 b2 Qe2 Nc6 Nd1 Bg4 Nb5 Bg7 Nf3 g1R Bc2 g2 Nbc3 Bd4 Nd2 Rh1 Qc4 Nf6+ Kd3 Rhe8 h8B Ne4 Be5 g1R Bh2 Rf4 Ra3 Rh8 Rb3 Qf5 Rb6 Nd8 Rd6 Qg6 Bg5 Nb7 Bh6 Ba2 Bg5 b1B Nb2 Rae8 Bh6 Bd7 Bg5 Bc6 Bh6 Rgg4 Bg5 Kb6 a5+ Ka7 Qb5 Rh6 a6 Reh8 Qb4 Qe6 Nb3 Rf3+ Kc4 Rce1 Bc1 Rh5 Bd1 Rff4 Nb5+ Kb6 a7 Nf2 a8Q Bh7 Qd8+ Ka6 Nc3 Bab1 Nd2 Bg8 Bb3 Qg6 Ba4 Re8 Bd1 Be4 Bc2 Ka7 Qb5 Bd7 Qb3 Bf3 Qb4 Bf5 Kb5 B5e4 Qb3 Be2+ Kc6 Ka6 Kc7+ Ka5 Qc4 Re7+ Kb8+ Rc7 Rb6 Re7 Ka8 Re8 Rd6+
1br1B1nr/1kRqP3/1r4nR/2K2Q1R/3N2rn/3r1b2/p2rNp1Q/Q2n2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 Kd7 e4 Kc7 b4 a5 g4 f5 c5 a3 b5 f3 e5 a4 e6 h3 b6+ Kb7 g5 f4 g6 f2 g7 f3 Be3 h2 Nh3 a2 Qe1 h4 Ng1 h3 Qc1 a3 Bh6 Qd7 Qc4 Bd6 e7 Nc6 Be2 f1N Be3 f2 Bc1 Ne3 Bf1 Ng2 Nc3 Nh4 Nge2 Bb8 Qa4 Ra6 Rb1 a1R Bf4 Ra2 Rb5 Rb2 Qd1 a2 Qa1 Ra3 Bg2 Rc2 Rc1 h1R Bh2 Rg1 Bh1 Rg6 Bg1 h2 Bf3 h1R Bh5 Rg4 Be8 Ra8 Ra5 Rh2 Nb5 Rhg2 Ra6 Rg6 Ra5 R2g4 Ra6 Nd8 Ra5 Ne6 Ra6 Nf8 Ra5 Nh6 g8R Rc6 Rg7 Nfg6 Rh7 Ng8 Rh6 Rc3+ Kd2 d3 Ke3 Rc2 Nbd4 d2 Rb5 d1N+ Kd3 Ka6 b7 Rb6 c6 Ka7 c7 Rc3+ Kd2 Rd3+ Kc2 Rd2+ Kb3 Ka6 Rc6 Ka7 Nf5 d4 Kb4 d3+ Nfd4 Rb2+ Kc4 d2 Rbh5 R2b3 Kc5 Rd3 Nb3 Ne3 Rf6 d1R Rc6 R1d2 Nbd4 Ka6 Nc1 Nd1 Nce2 Ba7 b8Q Bb7 Rf6 Be4 c8Q+ Bb7 Qf4 Bb8 Qh2 Ka7 Re6 Be4 Rc6 Bf3 Qcc7+ Ka6 Qce5 Kb7 Qd5 Bg3 Qf7 Rc8 Qf5 Bb8 Rc7+
br1n2Nb/BN1pb2n/R1Qn1Br1/1Bq1n3/6b1/2k2n2/p3R1PQ/3QnK2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 Ke7 e4 Kf6 b4 Ke5 b5 a5 c5 f5 b6 h5 c6 f3 c7 a3 b7 f2+ Ke2 a4 Nc3 f4 Nb1 h3 Ra2 d3+ Kf3 Kd4 e5 h4 e6 h2 e7 d2 Ke2 h3 e8Q Qg5 Qg6 Ra6 Rb2 a2 Qh6 a1B Ra2 a3 Qh4 Qc5 Qg4 Nf6 Qe1 d1B+ Kd2 Nc6 b8B Be7 Nc3 Bb7 c8Q Nh7 Qcg8 Ba8 Bd6 Nd8 Rb2 a2 Qge2 f3 Bb8 Rg6 Qb5 Be2 Qf7 Bd1 Bd3 Be2 Qd1 f1N+ Ke1 Ng3 Nd5 Ne4 Qf8 Nd6 Nf6 Kc3 Qh6 Rf8 Bg5 Re8 Qb1 Bd1 Ba7 f2+ Kf1 Bg4 Nf3 Rh8 Rg1 h1N Qd1 h2 Qc6 Re8 Rb6 Rf8 Ke2 f1N Bb5 Nf2 Ra6 h1N Ng8 Nd2 Qh2 Nd3 Bf6+ Ne5 Rf1 Nf2 Re1 Nd2e4 Kf1 Neg5 Nh4 Nf3 Re3+ Nd3 Re2 Nde1 Nf5 Ne6 Ne3 Rb8 Nc4 Nd8 Na5 Bb2 Qh3 Bc1 Qg3 Bh6 Qh2 Bg7 Nb7 Bh8 Bh4 Qc4 Bg5 Qc5 Bf6
3K2Bb/4n3/r3r1k1/2QRQ2p/rB1rnb1P/BnN3b1/1q3Qp1/nR1bN3 b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 Ke2 Kf7 Ke3 e5 h4 c5 a4 b5 f4 g5 d4 h5 d5 c2 f5 b4 d6 c4 a5 b3 a6 b2 d7 g3 a7 g4 f6 c3 Ra6 g2 Qd4 g3 Ra1 Bg7 Qc4+ Kg6 f7 Ne7 f8Q Qb6+ Qd4 Nbc6 d8B Na5 Bc7 Bg4 Bd3 Nb3 Qc8 Bd1 Nh3 g1R Ng5 g2 Qb8 Rd8 Bc4 Bh8 Na3 b1N Nb5 N1d2 Ba3 c1N Be6 c2 Rb1 Na1 Qc5 Ncb3 Bc4 c1B Bg8 Rd4 Nc3 Rf1 Qf8 Rf6 Nf3 Qb7 Rh3 Ra6 Ba5 Qb8 B5b4 Qb5 Kf2 e3+ Kg3 e4 Kf4 e2 Ne1 Qb6 Rd3 e3+ Kg3 Qb7 Qf2 Ne4+ Kf4 Bd2 Nc2 e1R Qe5 Rc8 a8Q Rcc4 Qa7 Re2 Ne1 Bc1 Ba5 Ra4 Qac5 Qb4 Nb5 Qd2 B5b4 Qb2 Nc3 Rd2 Qc8 e2 Qcc5 Rdd6 Rd5 Re6 Ke3 Rc2+ Kd3 Rd2+ Kc4 Rd4+ Kb5 Bf4 Rd6 Ra7 Kb6 R7a5 Kc7 Ra6 Nd3 e1B Kd8 Bc1 Rd5 Bf4 Qf1 Bf2 Ne1 B2g3 Qf2
R3n3/B2N1p2/N4p1K/r1RQ1B2/R2rb3/nb1nrnQb/2QP1k2/5rbq b - - 0 1 legal: proof: f4 d5 b4 a5 h4 axb4 c4 dxc4 f5 g5 f6 gxh4 Rh3 exf6 Rh2 Qe7 Rh1 Qd8 Kf2 Kd7 Ke3 Kd6 Kf4 Kd5 a4 c5 g4 b5 g5 h5 a5 b3 a6 b2 a7 c3 g6 c4 e3 b4 g7 h3 Be2 b3 Nf3 h4 Nh2 c2 Bh5 c3 Nf1 h2 Qe1 h3 Ng3 Na6 Bg4 Rh4 Ra3 Nh6 g8Q Nf5 Nf1 Bc5 Qg5 Nc7 Rg1 h1R Rg2 h2 Ra4 Qh8 Ng3 Ne8 Na3 b1B Nb5 b2 Ne4 Ba2 Qg3 b1N Bb2 c1R Rf2 c2 Bd4 Bb6 Nc5 Rcf1 Nd7 c1N Rf3 Bb3 e4+ Kc6 e5 Kd5 e6 Na3 Rf2 Nd3+ Kf3 Re1 e7 Rhf1 Bh3 Rhe4 Be3 Rb4 Nc7+ Kc4 Kg4 h1B Rf4+ Nd4 Na6 Be4 Rf5 Nf3 Bg1 Bf2 Rc5+ Kd4 Qh5 Re3 Qh7 Rc4 Kh5 Rb4 Kh6 Rc4 Rc6 Kd5 Bf5 Rd4 Bh2 Bg1 Rc1 Rb8 a8R Rb5 Rc3 Ng7 e8Q Ra5 Qg8 Ne8 Q3g5 Bc4 Bb8 Bb3 Ndc5 Bd7 Ba7 Be6 Qh5 Ke5 Nd7+ Kf4 Bg6 Kg3 Rc5 Kg2 Qd5 Bh3 Bf5+ Kf2 Qg4 Qg8 Qf4 Qg2 Qg6 Qh1 Qb8 Bc4 Qb2 Ba2 Qc2 Bb3 Qg3+
1n1BRN2/4q1nr/Q5R1/2Rbb1rb/QKQ2p2/npN1Ppq1/4q1B1/4r1k1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 g4 Ke6 c4 Ke5 a4 Ke4 e3 f5 g5 b5 c5 d5 a5 h5 a6 f3 c6 b3 g6 h3 a7 b2 c7 b4 g7 d3 Bg2 h4 Qe1 h2 Ra5 b3 Kc3 d2 Ne2 d1B Ra6 h3 Qg1 Nf6 g8Q Ne8 Rf6 Bd6 Rf7 Be5+ Nd4 Be6 c8Q Rh7 Rd7 Qe7 Qg5 Ng7 Na3 b1N+ Kb2 Bf7 Nb5 Na3 Qe1 Bg8 Rg1 h1R Kc3 h2 Qe2 Be6 Bh3 Bf7 Rg2 Re1 Bd2 h1Q Qcc4 Qh2 Rc7 Qg3 Rc5 Bh5 Qf1 Be2 Qa4 Bc4 Kb4 f4 Ne6 d4 Qg4 d3 Nf8 Bd5 Bc3 d2 Qe6 d1Q Qea6 Qe2 Ba1 Qh2 Rg6 Kd3 Bg2 Qg3 Nc3+ Kd2 Qh1 Rd1 Qh3 Ke1 Qhc8 Kf2 Qc4 Kg1 Q8a6 Re1 Bb2 Nd7 Ba1 Rc8 a8R Rc6 Re8 Nb8 Nd1 Rf6 Bd4 Rf5 Nc3 Bc7 Bf6 Be5 Nb1 Rg5 Nc3 Qd6 Bd8 Qe6 Nb1 Qe7 Nc3
kr1R4/q2Qb3/Np2r3/R2q2Q1/K1prb1pB/B1Q2n2/R5PN/4nqnb b - - 0 1 illegal: No proof kernel
nQn5/2r1P3/1Nbp4/qr1B3Q/1R2Qp1n/B1b1b2K/pqk1R1r1/3q2NR b - - 0 1 illegal: No possible last move
4b2q/K1P2np1/n2rN3/5qRQ/1qn1Q3/2r2Rp1/2pbBr1N/BkN3Bb b - - 0 1 illegal: No proof kernel
2b1nq2/pn2rpB1/q5RN/5P2/R4QQ1/BbNQnp2/3rRr1b/K1k4q b - - 0 1 legal: proof: d4 e5 f4 b5 a4 bxa4 h4 g5 e3 gxh4 d5 e4 d6 cxd6 Be2 d5 Bg4 d4 Bf3 exf3 Kd2 Ke7 g4 Kd6 c4 Kc5 Kc2 Kb4 b3 h5 Kb2 d5 f5 a3+ Ka2 d3 c5 d4 g5 d2 g6 h3 c6 h2 c7 d3 e4 h4 e5 h3 g7 Nc6 e6 Na5 e7 Nb7 e8Q Bd6 Qe3 Nf6 g8Q Qf8 Nc3 Ne8 Qg4+ Bf4 Qde2 d1B Qc2 d2 Qcd3 Bc2 Bb2 d1N Qed2 Bd7 c8R Ne3 Rc6 Rd8 Rg6 Bc8 Re1 Rh4 Ka1 a2 Re2 Rd7 Qc1 Re7 Ba3+ Ka5 Kb2 a1R Qcd2 Rd1 Qc1 Rd2 Ka1 Bd6 b4+ Kb6 b5 Ka5 b6 Bb3 Ne4 Ka4 Nf6+ Bf4 Ng8 Rh6 Rg5 Rc6 Nh6 Rcc2 Rg6 Rb2 Re1 Rf2 Ne2 Rd2 Rhg1 h1Q Rg3 h2 Nc3+ Ka5 Rh3 Qf1 Rh4 h1Q Re2 Bh2 Ne4 Nc5 b7 Ka4 b8B Nb7 Bbd6 Bd5 Nc3+ Kb3 Be5 Bde6 Bg7 Bc4 Qd6 B4e6 Re1 Qa6 Re2 Bc4 Qh3 B4e6 Ra4 Bc4 Qcf1 Kc2 Qh4 Bb3 Qg1 Qg2 Qhf4 Qh3 Qgg4 Qg2 Bb4 Kc1 Qd3 Qh1 Ba3+
3kN3/4nQ2/K4n2/1r2BnRQ/BN2bpp1/1p2R1P1/2B2nR1/1brnb1qr b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Kd2 h3 Ke1 exf6 Qd3 f5 Qf3 f4 Qg2 hxg2 Kd2 d5 Kd3 b5 c4 f5 a4 g5 e4 g4 h4 b3 h5 f3 a5 f2 h6 b2 a6 b4 c5 f4 a7 b3 e5 Qa5 e6 Bd6 e7 Qb6 h7 Bb7 c6 Bc5 c7 Nh6 c8R+ Kd7 e8B+ Ke7 Ra5 Nf5 Na3 b1B+ Nc2 Bb4 Nf3 g1R Bb2 Nd7 Ng5 Nf6 Ne4 Be1 Rh2 Rb8 Rc3 Kd8 a8Q Ne7 Qa7 Qc5 Be2 f1N Rg2 Ne3 Bd1 N3f5 Ba4 Bc6 Nd6 Rb5 Ne8 Rh1 Ke2 Qb6 Nb4 Rf1 Bc2 d3+ Kd1 d2 Ke2 d1N Kd3 d4 Kc4 Be4 Re3 d3 Be5 d2 Qb7 Nf2 Qa7 Rg8 h8Q d1N Qh5 Rh8 Qb7 Ng6 Qf7 Nge7 Qhg6 Rhh1 Qh5 Nh3 Ree2 Qg1 Re3 Rd5 Rc5 Nhf2 Kb5 Rd2 Rc6 Rd5+ Ka6 Rb5 Rc5 Nd6 Qc4 Bc3 Bd4 Nb2 Rd5 Rc1 Re5 Nbd1 Rg5 Ndf5 Be5 Be1 Qcf7
K2b4/4NN1p/3bpRr1/Bb3r2/QP2n3/pq1b2N1/2nbk3/rQ1Rn1RB b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Kg6 c4 a5 f4 d5 b4 e3 Kf3 a3 f5+ Kg5 c5 a4 f6 h3 c6 d3 f7 h2 c7 d4 Ke4 d2 Ke5 e2 Qb3 e1B Nc3 e6 Bc4 a2 Ba3 d1R Nb5 d3 Ke4 d2 Rc1 a1B Bb2 a3 Qc3 Na6 Qb3 Nc5+ Ke5 Bd7 c8N Ra5 Bd5 Nf6 Qa4 Rg8 Ne2 Rg6 Ng3 Nfe4 Rg1 h1B Nbd6 Bb5 Ne7 Nd3+ Kd4 Kf4 g5 Kf3 Bb7 Rg7 g6 Qc8 Rb1 Qc2 Rc1 Rg8 g7 Qb3 Rb1 Rc1 Bc6 d1N Bd5 Rh8 g8Q Bd2 Qg6 Ne3 Ba8 Rf1 Rd1 Ne1 Ke5 Bg2 Bd4 Rg8 Bd5 Bb2 Bc6 Bbc1 Bb6 N3c2 Bd8 Bd3+ Bd5 Rc5 Ba5 Bg5 Qf5+ Ke3 Qg6 Bd2 Qf5 Bf3 Qg6 Bfe2 Qf5 Bfh6 f8R Rg6 Rf6 Bf8 Nf7 Bb5 Qg4 Bed3 Qf5 Nf2 Kd6 Bh4 Bc6 Ne4+ Kc7 Re5 Nc8 Bd6+ Kb7 Rc5 Ne7 Rd5 Nh5 Ke2 Ka8 Rc5 Qe5 Bhg5 Qb2 Rcf5 Bb7 Bge3 Bc6 Bb6 Qb1 Bd8 Ng3+ Kf3 Bb7 Ng2 Qa1 Re1 Nd5 Nc3 Rb1 Rc1 Qa2 Nge1 Ne7+ Kf2 Bh1 Ne4 Rb2 Ra1 Rb1 Ke3 Rd1 Kf2 Qb1 Ke3 Nh5 Ke2 Ng3+
1nbBrb1r/K2N1PQR/1p1r1q1p/2bb3b/R1k4N/1p1n3N/4R1nQ/1B6 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Ke6 a4 d5 g4 d3 Ke3 b3 Kd4 d2 Kc5 d4 f4 h3 a5 d3 g5 h2 g6 e3 g7 e2 a6 e1N a7 Nf6 g8Q+ Kd7 f5 Nd5 f6 Nb4 f7 Ke6 Qg7 Ng2 Qc2 d1R Nh3 d2 Ra4 Qd6+ Kb5 Qd8 c5 Kd5 c6 e5 c7 e4 Kb6 e3 Bd3 e2 Bb2 e1B Bf6 Qe7 Qa2 Qe5 Bd8 Bh4 Re1 h1B Re2 h6 Be4+ Kc4 Qb2 Be6 c8N Qf6 Qe5 Bg5 Qh2 Bf4 Bg6 B4d6 Bf5 Rf1 Bh7 d1B Bg6 Rf5 Bh7 Rd5 Nd2+ Kc3 Be4 Nd3 Nf3 Bd7 Nh4 Bc5+ Ka5 Bf5 Nb6 Rd6 Nd7 b6+ Kb5 Ndf4 Bb1 Nd3 Re6 Bh5 Re2 Nc6 Ka6 Be6 Bc7 Re8 a8R Nb8+ Ka7 Bd5 Bd8 Bb7 Ra5 Bc8 Raa2 Kc4 Ra1 Nge1 Raa2 Bd5 Ra1 Nb4 Ra4 Ng2 Bf5 Rh7 Ng6 Re7 Qh1 Bcb7 Qh2 Na6 Qh8 Bg7 Nh4 Ree6 Rc8 Nb8 Be7 Re4 Re8 Bc8 Bd8 Re5 Rg8 Bf8 Rg7 Re8 Qg8 Rh8 Bb1 Qe6 Rh7 Qf6 Ra3 Nd3 Qg7 Qa1 Ra5 Qf6 Ra4+
1rnbBb2/b1p3bR/1Q1r3B/1q2n3/1R1p3N/pR3b1k/3r2PN/3nQNK1 b - - 0 1 illegal: Other
Q7/3bB1B1/q4q1N/rR1r2pn/kB1p1r1b/Rpr2Q2/1P2b1Rr/K3Nn2 b - - 0 1 illegal: No possible last move
7b/1R1b4/q2B1rnp/pN4p1/1Bbrb1RP/2Qq4/4bNBk/2nnKQ1N b - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxb4 a4 bxa4 g5 e5 g6 exd4 Qd3 fxg6 Qd2 g5 Qd1 g4 h4 Ke7 e4 Ke6 f4 g5 c4 d5 c5 b3 e5 Kf5 c6 a3 c7 h6 e6 g3 e7 b2 e8N a2 Nd2 b1B Ba6 d3 Qc2 Kg4 f5 g2 f6 Kg3 f7 d4 Rh2 Bg7 f8B Nc6 Qb2 Nge7 Bb7 Ne5 Nh3 g1N Ba6 Bd7 c8Q Ne2 Nc4 d2+ Kd1 Ng4 Qc2 Ng6 Bb2 Nc1 Bfa3 Rf8 Bb4 Bh8 Qf5 Be4 Nc7 Rf6 Rb1 a1Q Bb7 Qa6 Ne5 Rb8 Nd3 Nf2+ Kc2 d1B+ Kd2 Bc2 Nb5 Bb3 Ke1 Nd1 Ndf2 d3 Qc3 Bc4 B2a3 Rc8 Rb2 Rcc6 Rh1 Rcd6 Rg1+ Kh2 Rg4 Rd4 Bd5 Qe7 Rb1 Qed6 Nh1 Qg3+ N3f2 Qf3 Kf1 Qe3 Qf3 d2+ Qe2 Qd3 Rb3 Nb2 Bc6 d1B Ke1 Rdd6 Bb7 Rd4 Qf1 Be2 Bc6 Nd1 Rb2 Bef5 Bg2 Be4 Rb1 Qe6 Rb2 a5 Rb3 Qa6 Bd6+ Ne5 Bab4 Rf5 Bbc5 Bce6 Na7 Rf6 Rb7 Bg8 Nb5 Bc4 Be7 Ng6 Bb4 Qe6 Bf8 Qa6 Bfd6+
3RN1KB/1q2b2r/2r2pp1/3R1b2/1B1p2rN/4k2P/1b1r1qnr/1BR2nQQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 c4 d3 b4 f3 e3 a3 h3 f2 c5 g6 b5 f6 c6 d2 e4+ Kf4 e5 a2 b6 g3 b7 g2 c7 a4 e6 a3 e7 Nc6 e8Q Na5 b8B Qe7 Ba6 f1Q Ne2+ Ke3 Nec3 g1R Ne4 Nh6 Bd3 Rh7 Bc4 Nf5 Bd3 Nb3 Nd6 Qf2 Qg4 Rg2 Rd1 Rh2 Qg1 Nh4 Qf7 Ra7 Ne8 Ra4 Qe6+ Re4 Qc6 Rg4 Qa8 d6 Qb7 Bd7 c8R Ng2 Rd8 Bf5 Bc7 Qd7 Ba5 Be7 Bb4 Qc7 Qc6 Qb7 Be4 Nd4 Bc2 Ne2 Bd3 Ng3 Bc2 Be4+ Ke6 d5 Bd3 Nf1 Bc2 Rh6 Kf7 Rh7+ Kg8 Bf5 Be4 Nf4 Bd3 d4 Qch1 Ng2 Re1+ Kf3 Re5 d1R Bh6 Rd2 Bg7 Kf4 Red5 Kf3 Nc3 Ke3 Rc1 a1R Nb5 a2 Nbd6 Rb1 Bh8 a1B Be4 Bb2 Bc2 Ra1 Bb1 Ra5 Ne4 Ra7 Ng5 Ra6 Nf3 Rc6 Nh4
3R1Qq1/2N1qbb1/2R1p1Q1/kBp2r1P/q3nN2/1qBqR2K/Q2r1p1n/4b3 b - - 0 1 illegal: No proof kernel
B2n2bR/nQ6/3pq1pP/K1nb3n/3rQB1r/6Nk/R1Rp3b/N2n1Nq1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 e4 b5 c4 f5 h4 g3 c5 g6 c6 g2 c7 b3 h5 d3 Kc3 b2 a5 f3 a6 d2 e5 f4 a7 Kf5 e6 Kg4 e7 b4+ Kc4 b3 Kb4 Bb7 c8R Nc6+ Ka4 Nh6 e8N Nf7 Bb5 Qb6 Ng7 Nfd8 Ne2 g1Q Ba6 f2 Rh2 f1N Ra3 f3 Qc2 f2 Bc4 Ng3 Nec3 f1N Rh3 Bd6 Bd5 Ne3 Ne2 Nd1 Ra2 Be5 Na3 b1B Bg2 b2 Nf5 d6 Bh1 Qbe3 Qe4+ Bf4 Rc7 Bd3 Nc2 b1N Bb2 Bc4 Bf6 Bg8 Bg5 Rc8 a8Q Na7 Kb4 Bbd5 Ka5 Nbc3 Qb7 Na4 Na1 Rh7 Rc3 Rc4 Rcc2 Rd4 Bg2 Nc5 Bh6 Nh1 Neg3 Rh8 Nf1 Ng3 Qd3 Qe8 Qe3 Be5 Bf4 Qe6 Bh1 Nge4 Rh2 Nf6 N5g3 Rh6 Qe4 Rh7 Re2 Kh3 Rf2 Rc7 h6 Nh5 Rf3 Rf7 Rb3 Rf5 Bf3 Rg5 Rb6 Rg4 Rc6 Rh4 Rc8 Nf7 Rf8 Nd8 Bh1 Bh7 Rh8 Bg8 Bf3 Qh1 Qf7 Nb5 Be3 Nbc3 Nf5 Ba8 Qc6 Bh2 N5g3 Nb5 Bf4 Qg1 Bd5 Na7 Qfe8 Qg4 Qe4 Qe6 Qc7 Bc6 Qg7 Ba4 Bb7 Bc6 Ba8 Bd5 Qb7
3rq3/1RB3KQ/1p1q2R1/1rQ1N2p/Bbbnq1Pn/8/p6R/1rkBqqN1 b - - 0 1 illegal: No proof kernel
2qBQNnr/6Rn/p3B2R/N2Qn2K/p1B2b2/1r1P2qp/3nQ2r/4nbk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 b4 Ke5 g4 Kd4 e4 f5 g5 h5 e5 c5 b5 a6 g6 h3 g7 h2 e6 c3 e7 c4 e8B h4 b6 c2 b7 c3 Ra3 Nd7 b8Q Bd6 Rb3 Nf8 Qc7 Nh7 Beb5 Rb8 Bb2 c1N Na3 Nd3 Bd7 Ne1+ Ke2 f3+ Kf2 f4 Bc1 c2 Re3 Rb3 Be6 h3 Qf7 Bd7 Bfc4 Qc8 Qe2 Bb5 Qe8 Bb8 Rc3 Bc7 Bb2 c1Q Re3+ Qc3 Re5 Bb8 Rh5 Bd6 Rh6 Bb8 Kf1 f2 Bc1 Qe3 Nf3+ Ke4 Rg1 h1R Bb2 Rh2 Bf6 Be5 Nd4 Bd6 Qd1 Qg3 Ke2 f1N+ Rg2 Ne3 Bd8 Ng4 Qc2+ Rd3 Qb2 Ne5 Qa2 Ne7 g8Q Rb3 Qg5 Ng8 Qge7 Qd3+ Kf2 f3 Kg3 f2+ Kh4 f1N Rg7 Qg3+ Kh5 Kf4 Qb7 Bc7 Qd5 Bb8 Nac2 Bc7 Nc6 Bb8 Na5 Bc7 Qc5 Kf3 Nd4+ Kf2 Qd5 Kg1 Qc2 Ng6 Qce4 Bf4 Qd3 Ne5 Qe2 Bc6 d3 Nd2 Bg4 Bb7 Ne6 Ba8 Nf8 Bc6 Qb5 Bg2 Qd5 Bf1 Be6
3r2BB/KRN1Rq1P/2r1B1rq/p4n2/p2n1Q2/Q2N3n/n1k2Np1/1bbn4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 Ke4 h4 f5 b4 d5 c4 a5 h5 g5 c5 g3 c6 g2 h6 d3 h7 d2 c7 f3 Kb6 f2 b5 d4 e3 d3 Qe2 d1N Ra2 g4 Ra1 f4 Bd2 f3 Rh4 Ne7 Na3 Nc3 Nh3 g1N Rb1 Bf5 Nc4 Bh6 Ne5 Na2 Bc3 d2 Nd3 d1N Qb2 Rg8 Bh8 Nbc6 Qa3 Qf8 c8B Nd4 Be6 Rd8 Ka7 Rg6 b6 Qf6 Rh5 g3 b7 g2 b8Q Qg7 Be2 f1R Rb7 f2 Bg4 Bg5 Bg8 Qh6 Qc7 Rc6 Qcd6 Bg6 B4e6 Nef5 Re7 Re1 Qb8 f1Q Nhf2+ Kf3 e4 Ke2 e5 Kd2 Rh4 Kc2 Re4 Re2 Rb7 Nh3 Qbd6 Bc1 Qf8 Nh4 Qf4 Nhf5 Bef7 Nh4 e6 Rc7 e7 Ndc3 e8N Nd1 Ng4 Rc6 Qe5 Kd2 Nc7 Rf2 Nb2 Rff6 Re1 Bb1 Nd3 Kc2 Qed6 Qf3 Re7 Rg6 Be6 Qf7 Qf4 Nhf5 Ngf2
4QB1N/bqR3np/5K2/1Br2b1r/2Qr1k1R/3b1pnR/N1Pb1p2/1b3Bq1 b - - 0 1 illegal: No possible last move
3B4/2RrrnP1/3rpb1N/1npp1Q2/4B1K1/1B1b2Q1/1R1N2kq/1n1Nn1nq b - - 0 1 illegal: No possible last move
rR3b1q/1QK3pp/1Pn1Bqn1/1Q2QnN1/p1Nn1r1B/7n/k1R1R3/1b3r2 b - - 0 1 illegal: No possible last move
1R1q2Q1/3QBP1B/b1p5/rNn1p1r1/Nrq4r/4qRpN/r3R2b/k2Kn3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 Kf7 a4 Ke6 h4 Kd5 d4 b5 f5 g5 f6 b3 a5 b4 f7 e3 h5 e2 h6 c3 h7 Kc4 a6 g3 d5 b2 a7 b3 d6 g4 d7 c6 Rh2 g2 Bh6 c2 Qd6 c1Q+ Qd1 Ba6 Bf4 Nf6 Nf3 g1R Nc3 b1R Ra3 b2 Be5 Ra1 Rh5 b1R Rh2 Ne4 Ra4+ Rb4 Ra5 Ng5 Bd6 Ra2 Rf5 e5 Rg2 Bh6 Be7 Qe3 Qd6 Kb3 Nb5 Kb2 Rf2 Rg3 Ng1 Ka1 R5f3 Qb3 Nh3 Qc4 Qg6 Rg2 Qg8 Ra5 Kd2 Ra2+ Ke3 e1Q+ Re2 Rg3 Bg2 Qec1+ Kf2 Qe3+ Ke1 Ra5 Kd1 Ra2 Rf6 Nf3 Rf4 Ne1 Be4 Rg2 Rf3 Bf4 Bf5 Bh2 Bb1 Qc7 d8Q Nd7 Bg6 Nc5 Qd7 Qd8 Bd3 Rc8 a8N g3 Nb6 Ra5 Na4 Rb8 Qf8 Rg8 h8R Rg5 Bh7 Rf2 Rf6 Rf4 Rg8 Rh4 Rf3 Rb2 Qg7 Ra2 Rf8 Rb6 Qg8 Rb7 Nd6 Rb4 Nb5 Qb6 Ra8 Qd8 Rb8
1b1B2R1/R4pbQ/3qB1bq/1bN4r/n1r3NP/1R1Bpb2/1rp5/2Q1Kn1k b - - 0 1 illegal: No proof kernel
k2rn1R1/1B2Kp1R/5PN1/qr1b1q2/1Q1p1r2/N1Brb3/Qnrp1B1R/1q6 b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 h4 b5 f4 c5 Kf2 g5 Kg3 d5 a4 Kd7 e4 Kc7 f5 Kb7 h5 c2 h6 b4 h7 b3 e5 d3 e6 d4 e7 c4 e8Q d2 a5 c3 Rh4 b2 Rh3 Bh6 Nf3 Nf6 Qe3 Ne8 f6 Nd7 Qe7 Rb8 a6+ Ka8 a7 Qa5 Qde1 Nc5 Bb5 Bb7 Q1e4 Na4 Ne5 Bd5 Na3 b1Q Rh2 Nb2 Ba6 Rb5 Qb4 Rf8 h8B Rg8 Kg2 g3 Kf3 g2 Bg7 g1Q Ng6 Qf1+ Kg4 Qf2 Qe6 Qf5+ Kh5 Rh8 Bf8 Rg8 Bd6 Rf8 Bg3 g4+ Kh4 Be3 Bf2 g3 Bc8 g2 Kg3 Na4 Bb2 c1R Qa6 c2 Bc3 Rf1 Qe6 Bc6 Qa2 c1R Rh7 Rc2 Rh2 Qc5 Kg4 Bd5 Kf5 g1R Ke5 Nb2 Ba6 Qc8 Rh7 Nc7 Kd6 Rd8+ Ke7 Qf5 Bc8 Rg4 Ba6 Rh1 Bc8 Ne8 Ba6 Qg1 Re1 Rg3 Re2 Qb1 Bc8 Ng7 Qac4 Rd6 Qa2 Rh4 Ne5 Bf4 Bg1 Rd3 Rh2 Be3 Ng6 Rf4 Be6 Kb7 a8R Rf2 Rc8 Rf4 Rg8 Ne8 Bc8+ Ka8 Bf2 Rd8 Bb7+
b3nNK1/q1q2pR1/pR5q/b1nr1R2/3B3n/1Q5N/1NB1pPk1/Q1r1q1q1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 cxb4 a4 bxa4 e5 g5 e6 gxh4 Nc3 dxe6 Nb1 e5 Bb2 e4 Ba3 Nh6 Bc1 Ng8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 h5 d4 b3 g4 a3 c3 h3 Be2 h4 Qe1 b2 Ra2 e3 c4+ Ke4 c5 h2 d5 h3 c6 Bb7 c7 Nf6 c8R e5 d6 Na6 d7 Bb4 Qf1 Qc7 Rb8 Rd8 Kh6 Ne8 Ra1 a2 Kh7 Nc5 Na3 b1N g5 Nd2 g6 Nf3 g7 Kf4 g8N e4 Rb1 a1Q Qe1 Qa2 Ra1 Kg4 Bd3 Bd5 Rb6 Rab8 Rf6 Ba8 Rf5 Bd2 Kh8 Rb1 Bb2 Bb4 Qc3 Rc1 Qf6 Bd2 Nc4 Qa6 Ra2 Ba5 Ne7 Qab6 Qd4 a6 Ng6 Qba7 Nf8 Kh4 Kg8 Kg4 Ne2 Kh4 Rg1 h1Q Rgg5 h2 Rg7 Qg1 Nf4 h1Q Ba1 Qh3 Rb2 Qhh2 Rb6 Qhh1 N4e6 Kh3 Ng5+ Kg2 Bb1 Qh5 Nh3+ Qg5 Bc3 Nh4 Bb2 e2 Qc3 e1Q Qb3 e3 Bc2 e2 Bc3 Rb1 Nb2 Rc8 d8Q Qg6 Qf6 Rd8 Nd1 Rc1 Qd4 Rd6 Qda4 Rd8 Qa1 Rd5 Nb2 Qg5 Bd4 Qg6 Ng5 Qh6 Nh3+
3Q4/n1Rp2bQ/1q1qqN2/3ppQ2/nP2qB1k/2RN1rrB/2Kn4/R4q1b b - - 0 1 legal: proof: e4 b5 h4 f5 a4 fxe4 d4 bxa4 h5 c6 d5 cxd5 h6 gxh6 Ra3 h5 Ra1 h4 Kd2 Kf7 c4 Kf6 g4 Kg5 b4 a5 f3 h5 c5 h3 c6 h2 c7 h4 Na3 h3 f4+ Kh4 f5 e3+ Kc2 e2 f6 e1Q g5 Na6 g6 Nc5 f7 Ba6 c8Q Qe6 g7 Bd3+ Kb2 Qdb6 Rb1 Be4 Nc4 a3+ Kc3 a2 Rb3 a1N Qc6 a4 Qd6 a3 Qd3 a2 Qb1 Ra3 Bg2 Na4+ Kd2 Rh7 Rc3 Nb3+ Kd1 a1Q Qb8 Nd2 Ne2 Qed6 Ne3 e5 Rg1 h1Q Ng4 h2 Qd8+ Ne7 g8R Bg7 Nf6 Nc6 f8Q Na7 Nf4 Rh5 Bh3 Rg5 Qc2 Rg3 Nd3 Qb1 Re1 Qf1 Qf7 h1Q Qg6 Bh6 Qf5 Bg7 Re8 Qa1 Qb1 Qhf3+ Kc2 Qg4 Rf8 Bh1 Rg8 Qe4 Rf8 Nb3 Bf4 Nd2 Rc7 Qad4 Rc3 Q4c5 Re8 Qcc7 Re6 Qe7 Rec6 Qcd6 Rc7 Qee6 Qa2 Rb3 Ra1 Rb1 Qb2 Re1 Qa2 Ree3 Qc4 Ref3 Qc5 Qdc6 Qce7 Qcd6 Qf7 Qfe1 Qfg8 Qf1 Qgh7+
Qbnr1q1N/2np3q/2bp1b1k/RbN1BRP1/1Qb1p1B1/6r1/5q2/3R2BK b - - 0 1 illegal: No possible last move
1Qq5/R1Bp2r1/bp1nnr2/r1Q1b1n1/2BQ3K/1N2pBP1/3R1q2/1N1r1kr1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 c4 Kf7 a4 Kf6 f4 Kf5 Kf2 h5 a5 e5 a6 e3+ Kf3 d3 c5 h3 Kg3 Ke4 f5 e2 f6 e1N c6 d2 c7 Ke3 a7 h4+ Kg4 Kf2 f7 h2 g3 h3 Ra6 e4 Nf3 b6 Nc3 b3 Ra1 b2 Ng1 b1Q Nce2 e3 Ra5 Bd6 f8Q+ Nf6+ Kg5 Rh6 Qa4 d1R Rb5 Ba6 c8B Nc6 Bb2 Qa2 Nd4 Be5 Nb3 Nd4 Bb7 Qc8 Nf3 Ne8 Ra5 Nd6 Nfd2+ Rf6 Nb1 Ne6+ Kh5 Nf3 Bc4 Nfg5 Kh4 Rg1 Bf3 Rd1 Re1 h1R Re2+ Kf1 Qb4 h2 Rd2+ Ke1 Qh8 Rg1 Qc5 h1R+ Rh2 Rb8 a8Q Rd5 Ba1 Qf2 Qb7 Ra8 Qb8 Rd1 Ra3 Rf7 Qf6 Rg7 Qf4 Rf1 Qfd4 Rhg1 Rg2 Qb2 Rd2 Ra7 Bc6 Rf6 Bf3 Ra8 Rd3 Qf2 Rd2 Bb5 Ra7 Ba6 Bcd5 Kf1 Bc3 Be2 Bc4 Bd3 Rb7 Ra6 Ra7 Ra5 Ba6 Nb5 Qdd5 Bf4 Be5 Bc4 Bd6 Be5 Bc7 Nd6 Qdd4 Bd3 Bc4 Be2 Bcd5 Ba6 Bc4+
k3N3/n1pBpb1q/N2rBpq1/R2qR2q/1b6/Q1R1K2P/r2Qn3/2Bq3n b - - 0 1 illegal: No proof kernel
q3QR2/pBkq3r/nR2N3/3pBr2/1r1rrb2/2N3nN/1P2p1b1/K1Q1Qb2 b - - 0 1 illegal: No possible last move
K1b1NN2/PppB1Rp1/1rn4B/n2q4/3n4/n3nrbn/BNQQ1n2/k2R4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 d4 Kd6 h4 Kd5 a4 f5 e4+ Ke6 h5 f3 Ke3 c3 e5 Kd5 e6 c2 e7 g3 e8B f2 a5 b3 h6 b2 h7 g2 a6 Ra7 Kf4 Nf6 Nd2 b1N Nc4 Ba3 Bd7 Ng4 Nh3 g1N Bd3 f1N Nb2 Nfd2 Nf2 Nb3 Ne4 Rf8 h8N Nc6 Ng6 Nba5 Nd6 Nf2 Ne8 Bb4 Be3 c1N Qc2 Be1 Ra2 Rf6 Nf8 Ncb3 Bd2 Ra8 a7 Na3 Ra1 Rd6 Rd1 Rf6 Kg5 f4 Rh4 f3 Rf4 Re6+ Kf5 Ngh3 Bc1 Ng4 Be3 f2 Rf3 f1N Bh6 Bg3 Ng6 Qe7 Qf2 Bf4 Nd6 Re4 Bb1 Be5 Qc2 Bg3 Rf4 Ngf2 Rf3 Re6 Be8 Bd7 Rf4 Rd8 Nf8 Nb8 Rf3 Bc8 Ba4 Qd7 Ne8 Qb5 Rf4 Rdd6 Rf3 Bd7 Rf4 Rc6 Rf3 Rc3 Rf4 Kc6+ d5+ Kc5 d6 Qc4 Bc6 Kb4 Bb5 Rg6+ Ke5 Bg4 d7 Rf3 d8Q Ne3 Qdd3 Nd4 Ba4 Bh4 Rf7 Rb6 Bc6 Ndf5 Qd5 Bg3+ Ke6 Qb5 Qdd3 Nd4+ Ke7 Bd7 Kd8 Qd5 Qde2 Nab5 Qe1+ Ka3 Qed2 Bf5+ Bd7 Nbc6+ Kc8 Nd8 Kb8 N8c6+ Ka8 Bg4 Nf6 Be6 Be8 Bc8 Qcc1 Kb3 Bd7 Na3 Qc5 Ng1 Ne8 Ngh3 Bh7 Ka2 Bb1+ Ka1 Qcc1 Qa2 Qcc2 Qd5 Ba2+
1b6/pnbbq2r/1R1pn3/b4b1b/1QNr1BQ1/1Q1PBN1k/2KB1p2/bR6 b - - 0 1 legal: proof: g4 h5 a4 hxg4 f4 e5 b4 exf4 b5 c6 b6 Rh3 a5 Rh5 a6 bxa6 Bg2 Rh6 Bd5 Rh5 Bc4 Rh8 Bb5 cxb5 e4 Ke7 h4 Kf6 c4 g5 b7 b4 h5 g3 e5+ Kf5 c5 a5 c6 g4 c7 b3 e6 f3 h6 g2 h7 b2 e7 f2+ Ke2 f1B+ Ke1 g3 e8Q a4 Nc3 b1B Qc2+ Kg4 Kd1 f5 Qb3 f4 Ba3 f3 Bc5 f2 Qc2 a3 Bb4 a2 Nf3 g1B Qd3 g2 Bc5 Nc6 b8B Nh6 Be3 Bh2 Nb5 g1B Qee4+ Kh3 Qe8 Na5 Qc4 Bb4 Qg6 Nf7 Nd6 Qe7 Kc1 Nb7 Qf4 Bf5 d3 Ba5 Qe6 Nfd8 Nc4 Be2 Rb1 a1B Rb6 Bd1 Qd5 Ne6 Qfd4 Rd8 h8B Nbc5 Bg7 Ba6 c8Q d6 Ncd2 Rg8 Bgh6 Rg4 Bc7 Re4 Qcb7 Rh8 Nb1 Rh7 Qc3 Rd4 Qa8 Bc8 Bef4 Bd7 Qc2 Nb7 Qcc4 B1c3 Qc8 Bcb4 Nh4 Bh5 Kc2 Be1 Bd8 Bec3 Qb4 Ba1 Ra6 Bc7 Nd2 Bb8 Nhf3 Bc3 Nc4 Bd2 Qb1 Ba5 Qb4 Bac7 Qdb5 Kg4 Be3 Bf4 Rb6 Bgh2 Rb1 Kh3 Q5a4 Bg5 Qab3 Be5 Bd2 Be3 Bf4 Bg7 Be1 Bd2 Be3 Qf7 Bdg5 Qe7 Bgf4 Bh8 Qb5 Ba5 B1d2 Re4 Q5b4 Ba1 Qg8 Rd4 Qg4+
N1R1Qq2/B3qRr1/6n1/n7/K2R2bq/brqpn1Q1/1pNPN1p1/1k1B2b1 b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 a4 Ke7 e4 Kf6 h4 Ke5 a5 Kd4 a6 c5 a7 g5 e5 f5 e6 b5 h5 d5 h6 f3 h7 b4 e7 g3 e8N f4 Bh3 Kd3 Qb3 d4 Kd1 c4 Bd7 f2 Ba3 f1N Rh4 g4 Ne2 g2 Rh3+ f3 Qa4 g1B Bc1 g3 Rh6 g2 Bc6 f2 Nf6 b3 Nd5 Qe7 Bb2 c2+ Kc1 Bg4 Nbc3 Ne3 Nd1 f1Q Bd7 Nc6 Nb6 Na5 Rd6 Rb8 a8Q Qe1 Rb1 Q1h4 Qa3 Rb7 Bc3 Ra7 Kb2 c1Q+ Ka1 Kc2 Ba4 Rd7 Qe8 d3 Na8 Rb7 Bd4 c3 Ba7 Rd7 Rd4 Rc7 Nf2 Qf1 Nd1 Qff2 Qd6 Rd7 Bc6 b2+ Ka2 Rb7 Ka3 Rb3+ Ka4 Qf5 Ra1 Qc8 Ra3 Kb1 Qb8 c2 Bf3 c1Q Qg3 Q1c3 Ra2 Qec7 Ra3 Ne7 Ra2 Rg8 h8R Rg5 Rh7 Qf5 Rf7 Rg7 Ra3 Ng6 Ra2 Nd5 Ne3 Ba3 Nc2 Qce7 Qf4 Bc5 Qg3 Ne3 Ra3 Rb6 Rb3 Ba3 Rbb4 Rb7 Rbc4 Rb3 Rc8 Qfc5 Nf4 Qf8 Bd1 Qce7 Ne2
1nq1QK1R/6n1/3rB2R/4Bn1N/b2NpqpB/1NQ2r2/Pqn2bpk/3r4 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 f4 Kf5 c4 e5 h5 d5 c5 g5 c6 b5 h6 g3 h7 Kg4 f5 e3 Kd3+ e2 c7 e4+ Kd2 g2 f6 Kg3 f7 e1N Ke2 g4 Ba3 b3 Qc2 b4 Qb2 d3+ Ke3 d2 Kd4 d1R+ Ke5 d4 Nd2 d3 Nb1 d2 Rh5 Bc5 f8N Nf6 Rh2 Ra6 Qc2 b2 Nf3 b3 Nd7 Rd6 Bc4 Rf8 h8B Ne8 Nf6 Bf2 Nd4 Ng7 Rh6 Bd7 c8Q Ba4 Nh5+ Kh2 Qc3 Nc2 Be6 Rf3 Bc5 Qc7 Qe8 Qc8 Bb6 Bg1 Bd8 Bf2 Na3 b1Q Nab5 b2 Bh4 Qc1 Nb3 b1Q N5d4 Qbb2 Rb1 Re3 Kf6 Rf3+ Ke7 Rg1 Qc5 d1N Qc3 Nde3 Ra1 Nef5+ Kf8 Qf4 Re1 Rd3 Re3 Rgd1 Rg3 Rf3 Rh3+ Kg1 Ng3 Nh5 Be5 Nhg7 Nh5 Re3 Rh8 Qh2 Bhg3 Red3 Nf6 Rf3 R3h6 Kh1 Bh4 Qf4 Nh5 Kg1 Nb5 Kh2 N5d4
4nR2/1rqN4/1NQqb1B1/2Bbq2r/1QPpp1bp/1nN2nQ1/7R/1Kb2k2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kf6 c4 Kf5 Kc2 e5 a4 d5 a5 b5 g3 h5 a6 h3 a7 b3+ Kb2 h2 Be3 h4 Be2 b4 Ra4 d3 Nh3 d2 Bg1 d4 Na3 e3 g4+ Ke4 f5 Na6 f6 Nc5 f7 Qc7 g5 Rb8 a8N Nf6 g6 Rb7 g7 Rh5 g8Q Be6 Qg7 Ne8 Qc1 d1B Kb1 b2 Ka2 b1N Nb5 Nb3 Nb6 N1d2 Qg3 Nf3 Kb1 Bh6 f8Q Qd6 Bf1 e2 Nd7 Kd3 Nc3 Bf4 Qb2 Bc1 Qh6 Qc7 Bg2 e1Q Ra8 Qe4 Rc8 Qec6 Be3 Q6d6 Bg5 Be2 Nf4+ Ke3 Rf1 h1B Be7 Bd1 Qa3 Kd2 Rf2+ Ke1 Bh3 Be2 Rg2+ Kf1 Rh2+ Bg2 Qh7 Ng1 Ra8 Na5 Qe4 b3 Nc5 b2 Qd5 Qa6 Qd6 Nb3 Kc2 Nf6 Rf8 Ne8 Bf5 Bg4 Bg6 Bc6 Nfd5+ Nf3 Qb4 Qaa5 Qb6 e4 Nd7 Qc5 Qa5 Qb5 N5b6 Qe5 Qac5 Bcd5 Qdc6 b1Q+ Kd1 Qa1 Kc2 Qa5 Kb1 Qb5 Qb4 Qc5 Qca4 Q5c6 Bc5 Q6d6 Qc6
Q2b1n2/QN1b2qR/r5r1/q6p/1nB4N/bPBp1kp1/bR3NRr/2K2n2 b - - 0 1 illegal: No proof kernel
Qq3bK1/6R1/4N3/nn3qp1/BPNr1pBn/2r1bp2/NqQn1R2/2Bb3k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 h4 g5 b4 d3 c4 f3 c5 a3 h5 a2 h6 a4 c6 g3 e4+ Kg4 e5 f5 e6 d2 h7 a3 c7 g2 e7 Kg3 e8N Nc6 Ba6 Nh6 Qb3 d1Q+ Bd2 Na5 Bb7 Qc2 Nh3 g1B Nf6 Kg2 Ke5 d5 Bc6 Be3 Bc1 f4 Nd2 d4 Nd5 d3 Ne4 d2 Qc4 d1N Ba4 Bf5 c8B Nc3 Nhf2 Nb5 Nd6 Qb1 Be6 Bc2 Bg4 Qb8 Ke6 Bd1 Rf1 Nf5 Kf7 Nh4 Nfe4 Qb2 Rf2+ Kh1 Qc7 Ra6 Nec3 Rc6 Qc8 Qb1 Nc4 Qf5+ Nf6 Rg8 h8Q Rd6 Qh7 Rd4 Qb7 Rg6 Qa8 Rh6 Qg6 Rh7+ Kg8 Rc7 Nh7 Rc6 Rb1 a1Q Na2 Qb2 Ra1 Rc8 Nf6 Rc7 Nh5 Rc5 Ng7 Rc7 Nc3 a2 Qgc6 Rc8 Ne6 Rc7 Qe4 Rc8 Qc2 Rc6 Rb1 a1N Na2 N1b3 Ra1 Nd2 Nc3 Rcd6 Ra3 Rd7 Na2 Rc7 Rd3 Re4 Rd6 Rd4 Rd7 Rc6 Rg7 Rc8 Na3 Rc3 Nc4
8/5nb1/bK2QN1n/1Q1NRp1B/Q2p1r2/nPqr1pBq/1B1n1rk1/R2b4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 c4 d5 h4 a5 b3 f5 e3 g5 c5 d3 h5 g3 h6 d4 c6 d2 h7 g2 c7 a3 Rh5 a2 Bb2 g4 Rg5 a4 Qc1 d1B Ne2 Kf3 e4 g1N e5 g3 e6 g2 e7 a3 e8Q Ba6+ Ka5 Nc6+ Kb6 Bg7 Qd7 Ne5 Rh5 Nh6 Qc4 Nef7 Qdb5 Qh4 c8Q Qh3 Q4e6 Kf2 Qa4 Nf3 Qg8 g1R Qec4 Rg4 Nbc3 Nd2 Nd5 f3 Nf6 Rc8 Qcb5 Rc3 Rh4 Rd3 Nc3 Rf4 Ncd5 Kg1 Be2 Kg2 Qc8 Rg8 Qe6 Rc8 h8B Rc2 Rc1 a1Q Rb1 Rdc3 Bc4 a2 Rc1 Rd3 Rg4+ Kh1 Rg1+ Kh2 Re1 Kg3 Re5 Kg2 Ba3 Qc3 Bb2 a1N Rb1 Nf1 Rc1 Rf2 Rb1 Nc2 Ra1 Bf8 Bg7 Na3 Bh8 Ng8 Bg7 Nd2 Bh6 Rg4 Bf4 Ngh6 Bg3 Rf4 Qc5 Qg4 Bb5 Qh3 Be8 Bg7 Qcb5 Nd8 Bg6 Ndf7 Bh5
k5B1/nnr1R1K1/qR1B2b1/4pp1N/3Nq1q1/2P1Rp1r/4Bnr1/brQ3Q1 b - - 0 1 illegal: No proof kernel
4Q2Q/2nb4/4q1rq/b1kPp2B/q3p2K/p3b1NR/rB2RN2/n1R2qnQ b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 b4 Kd7 f4 Kd6 Kf2 a5 g4 c5 d4 e5 f5 h5 f6 a3 b5 a4 b6 c3 f7 c2 d5 h3 Kg3 h4+ Kf2 a2 g5 c4 b7 c3 g6 h2 g7 h3 Kg3 Nf6 g8Q Qa5 Bg2 Nc6 b8Q+ Kc5 Qb2 Nd4 Bh6 c1B Bg5 c2 Ne2 Nf3 Qd3 Bd7 Re1 h1Q Qg6 h2 Qd1 Rg8 Qb8 Ng1 Kh4 Ne8 Nbc3 Be3 Bf3 c1Q Ng3 Nc7 Bh5 Be7 f8R Bd8 Qh7 Rg6 Qh8 Qb5 Rb1 a1N Re2 Qc2 Rg8 Qb6 Rc1 Qe6 Rf8 Qg2 Rf3 Qf1 Qe1 Ra5 Nd1 Ra6 Nf2 Ra5 Nf5 h1Q+ Rh3 Qh2 Ng4 Qhf4 Ng3 Qf8 Nf2 Qh6 Qg7 a3 Qf6 Rb5 Qh8 Rb2 Qd1 Ra2 Qc8 Bf6 Qce8 Bd8 Qe1 Nb5 Qd1 Ba5 Qe1 Nc7 Bf4 Bd4 Bd2 Be3 Bc3 Qa4 Bb2+ Kb6 Qd1 Kb5 Rd2 Kb4 Qf3 Kb5 Re2 Kb6 Qh1 Kb5 Rb1 Kc5 Rc1+
RKn1q3/2BQ2R1/N4rNr/1QBp1pqN/b3q3/p2q1Q2/1n1P3b/2n2k1r b - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 b5 f4 bxa4 b5 e5 b6 exf4 e3 c6 Bb5 cxb5 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 g5 d5 e4 a5 c3 Kd3 b7 h5 c4 h3 g6 h2 c5 b4 g7 b3 c6 h4 c7 h3 Qh5 f3 Na3 f2 Qg5 f1Q Nc4 a3 Qg2 b2 Nb6 b1Q Qg5 a2 Qg4 a4 Nd7 Qe2 Nf6 Rh6 Ba3 Ra6 Nh5 Bd7 c8Q Raf6 Bc5 Ne7 g8Q Na6 b8B Nb4 Nf3 a3 Nh4 Qg2 Ng6 Qe8 Bc7 Ba4 Qd7 Nc8+ Qge6 Qb3 Rag1 a1N Qb5+ Qc4 Qg3+ Ke2 Qb3 Be7 Qed7 Qg5 Rg4 Qd3 Rc1 h1R Rc4 Qb1 Qf3+ Ke1 Rg3 h2 Rg2 Rf8 Ke6 Nd3 e5 Nb2 Rb4 Bd1 Ra4 Nb3 Ra8 Nc1 Rg4 Ba4 Rg3 Nb6 Rg4 Bd8+ Kd6 Rf6+ e6 Qd3 Kc6 Nc8 Kb7 Be7 Kb8 Bd6 e7 Qg8 Qe3+ Kf1 e8N Be5 Neg7 Qe8 Ne6 Rg1 Rg2 h1Q Rg4 Qe4 Qf3+ Ke1 Be3 Bf4 Nc5 Rh1 Na6 Bg3 Bc5 Bh2 Ngf4 Qh4 Rg7 Qg5 Qe3+ Kf1 Ng6 Re6 Qg3 Rf6 Qf3+
R1b1q1NK/3kBqR1/B2Nb1Q1/p7/pQrprB2/1rb1n1n1/2q2Q1P/1b6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 Kd3 a5 b4 g5 e4 d5 c4 g3 c5 g2 e5 f3 b5 f4 e6 g4 b6 f2 c6 f3 e7 g3 c7 Nd7 b7 Ndf6 b8B Rh3 Bb2 Nh5 Ba7 Kd7 Bb8 Nh6 Na3 Bg7 Rb1 Qe8 Qb3 Nf5 Nb5 Ne3 Ne2 g1R Nec3 g2 Nd6 Ng3 Nce4 Ra6 Qb4 Rc6 Bc1 Rc4 Ba3 Qf7 Be2 Re1 Rg1 f1B Rb2 f2 Nf6+ Kc6 Ng8 Kd7 Rh1 g1Q Rb3 Qg2 Rg1 Qgf3 Rb1 Bg2 Rb2 f1B Rb1 Kc6 e8Q+ Qd7 Qf7 Qe8 Qg6 Qff7 Rd1 Bf3 Rg2 Bfg4 Rc1 Bce6 c8Q+ Qc7 Qd8 Qcf7 Qdf6 Kd7 Qf2 Bh8 Nb7 Bf6 Bf4 Bg7 Nd6 Bgf5+ Kd2 Bb1 Rc2 d3 Rc1 Rd4 Kc3 d2 Ba6 Bb5 Rc2 Rc4+ Kd3 Ba1 Rg1 d4 Rg2 Nh1 Ke4 d1Q Ke5 Bc3 Rg4 Ng3 Rb2 Qh7 Kf6 Qc2 Rb3 Qh5 Kg7 Bc6 Rb2 Bb7 Rb3 Qd5 Rg5 Bc8 Rb2 Nh5+ Kh8 Ng3+ Qh5 Ng4 Qb6 Qdf5 Qc5 Ne4 Nf7 Bd2 Rb8 Rb3 Rg7 Ng3 Qg6 Re4 Ra8 Bc3 Qb6 Ne3 Be7 Qf6 Nd6 Qff7 Qb4
8/R3K1B1/qBqnQ1B1/p3NPk1/pb1bpn1Q/br3bq1/N7/Rrr3R1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Kg6 c4 d5 b4 e5 f4 a5 c5 g3 c6 d3+ Ke3 d2 c7 g2 b5 d4+ Kf2 d3 Kg3 e3 b6 e2 b7 e1B+ Kf3 e4+ Ke3 Nf6 Qb3 d1R Qg8 d2 Ba6 Qd6 Nf3 g1Q+ Ke2 Bg4 c8R Ne8 Nc3 Qg3 Ke3 Nd7 b8Q Ne5 Bb5 Nd3 Na2 Qa6 Kd4 Ba3 Kd5 Nd6 f5+ Kf6 h5 g5 Qb7 Rb8 Ne5 Bf3 h6 g4 Qe6+ Kg5 Rc7 Rhc8 Qc6 Rb7 h7 Rbb8 Bc4 Rb3 h8B Rcb8 Bb2 Rc1 Bg7 d1Q Ra7 Beb4 Bd4 Qc2 Bb6 Rbb1 Qc7 Nf4+ Kc6 Rb3 Kd7 Rb7 Bd5 Qc6+ Ke7 Rbb1 Qed7 Ne2 Qcd8 Bd2 Qh8 Nf4 Bg1 R7b3 Bf7 Bdb4 Qdc8 Qh2 Qh3 g3 Bg6 g2 Qe6 Qg3 Bb6 g1B Qh7 Be3 Rg1 Bd4 Qh4+
4RQ1q/1K4Rq/2Q4P/1N3Bn1/r1q3bp/4n1q1/n1pBrkpB/bb3N1N b - - 0 1 illegal: No possible last move
q2q1q1Q/R5b1/BB1N1p1r/1bnBR2k/3prN1P/Q2p1r1n/2qb4/Q6K b - - 0 1 illegal: No possible last move
Q4q2/1rr2nr1/nnb1p1k1/3NR1b1/2b1pP2/BB1Q3p/3Nn1Rq/N2K1Q2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 a4 b5 c4 d5 g4 h5 g5 d3 a5 b3 c5 b2 c6 b4 c7 h3 a6 b3 a7 e6 Nf3 h2 Nbd2 b1N Nd4 b2 N4f3 d4 Ra3 h4 Rc3 h3 Be2 Na6 Rg1 h1Q Rc2 Bb7 c8N Qh2 Nf1 Rh7 Rc6 Nh6 Ne7 Na3 Rc8 b1R Rg4 Nc4 Rg2 d2+ Kf2 d3 Rc5 Rc8 a8Q Rc7 Nd5 Kg6 Nd4 Nb6 Nc2 Nf7 Na1 Bh6 Ba3 Bc6 Qc2 d1B Ke1 Rb5 Nd2 Qf8 Qb1 Ba4 Bd1 Rg7 Bb3 Rb4 Qc2 Bab5 Kd1 Bc4 Qc1 Nd7 Qc3 Rbb7 Rb5 Nb6 Qd4 Kh5 g6 Bg5 Qf2 Kh6 Qf1 Kh5 Nb1 d2 Rc5 Rh7 g7 Kg6 g8Q+ Rg7 Ra5 Qe7 Qgd8 Qf8 Kc2 d1N Nd2 Nc3 Qd7 Ne2 Kd1 Ba4 Qb5 Bd3 Qc4 Bc6 Qd4 Bc4 Qd3 Qd8 Nc3 Qh8 Re5 Qf8 Nd5
b2rR2K/b1k5/B1P3qB/2r2R2/1NRQ2pn/pp1bqN2/bnr1Bn2/4Q3 b - - 0 1 illegal: No proof kernel
nB2RQr1/8/RNp1R3/K3pr1p/4bq1b/NqP3B1/qBn2Q2/1rkq1n2 b - - 0 1 legal: proof: e4 a5 Ke2 f5 h4 fxe4 b4 axb4 h5 d5 h6 d4 Bb2 d3+ Ke3 gxh6 Ba3 h5 Be2 dxe2 Bc1 h4 a4 Kf7 d4 Kg6 Kd2 Kg5 g4 Kf4 c3 e1R a5 e5 g5 h5 f3 b5 g6 b3 d5 h3 a6 c6 d6 b2 a7 e3+ Kd3 b4 Kc4 h2 g7 b3 Kb4 Nf6 g8R Nbd7 Qd2 Be7 Na3 b1Q Bb2 Qf8 Qf2 e2 Ka5 Nb6 d7 Ne4 d8B Nd2 Rg6 Bh3 Re6 Qa2 Rb1 Bg2 Ba1 Rb8 a8Q b2 Bc7 Rb7 Bb8 Rf1 Rd1 e1N Ne2+ Kf5 f4 Ke4 f5 Kd3 f6 b1Q f7 Be4 Rg1 h1Q Rg8 Nc2 Rc1 Qh6 f8B Qf4 Bh6 Bh4 Rge8 Qbb3 Bg5 Rg8 Bh6 Qf8 Bf4 Rf7 Rb1 Rf5 Bg3 Re1 Rb2 Nf1 Rb1 Kd2 Nf4+ Re2 Rb2 Kc1 Nd5 Qf6 Qh2 Re1 Qf2 Qc4 Rb4 Qcb3 Ra4 Rd1 Qa6 Qf3 Qc8 Na8 Nb6 Qg5 Qd8 Qgf4 Qe7 Rd2 Qf8 Qd1 Rd4 Rd3 Rd7 Rd4 Ra7 Rb4 Ra6 Qc4 Na4 Rb1 Nb6 Qcb3 Bb2+
6R1/N1Q2r1R/KPRQn3/2bq1np1/2prBb2/Br1k1N2/1Qp2n2/n2q1b2 b - - 0 1 illegal: No possible last move
q2r1rr1/2kNRb1N/1Pqn3R/1p1RB3/4qnQ1/1BN3q1/p1np1b2/1Q1K4 b - - 0 1 illegal: No possible last move
rR2brqQ/3r3q/pqk1N2n/2B5/1bR1B2p/nN1np3/Q4qPQ/3K3B b - - 0 1 illegal: Other
1bqB1bq1/1B4qr/pQ3pR1/1N2p2r/1NPr1k2/4N1nR/1B1n4/K1Qbb3 b - - 0 1 illegal: No proof kernel
2Q1Q2R/q2r3P/pn2p1b1/NBB1nbn1/1r1bk3/r1q1n2p/6BK/R3NQ2 b - - 0 1 illegal: No proof kernel
Nb6/4r2p/pqqPn1kr/2B3R1/3N4/1QbqBN1p/q4nb1/1BRn2KQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 c5 b4 f5 e4 Kf7 g4 f3 d4 a3 d5 c3 e5 c2 g5 f4 e6+ Kg6 b5 c4 e7 h3 e8N c3 b6 a2 b7 Nf6 Nd2 Bb4 Nb3 Ng4+ Ke1 f2+ Ke2 f3+ Kd3 Na6 b8B Bb7 Be5 Nc5+ Kd4 Ne6+ Ke4 Qb6 Be3 c1Q B5f4 c2 Nd4 Bc3 Bd3 f1Q Bb8 f2 Nc7 Re8 Ngf3 Re7 Rg1 a6 Rb1 a1Q Ba7 Rb8 Na8 Qa2 Rg3 Qe2 Qh1 f1N Rg2 Rf8 Rg1 Rf6 Rg3 Qca3 Rc1 Qad6 Rg2 Qbc6 Bc5 Qdc7 Rg3 Q7b6 Rg1 Kg7 Rg2 Rh6 g6 Kf6 g7 Kg6 Ra1 c1B Bb1 B1d2 Rg3 Be1 Rg2 Bg3 g8Q+ Rg7 Rg1 Bb8 Rg2 Qeb2 Kd3 Qb2b3 d6 Qba3 Qh8 Re7 Qg8+ Ng7 Qb3 Ne6 Rd2 Nf2+ Ke2+ Qc2 Ke1 Qb2 Ra5 Qa2 Ke2 Qd3+ Ke1 Bb2 Rc2 Ba1 Rc1 Bc3+ Bd2 Ne3 Rb5 Qde4 Ke2 Ned1+ Kf1 Qd3+ Kg1 Qcc7 Be3 Bd5 Ne1 Bg2 Nef3 Qd7 Bb4 Qdc6 Rg5+ Kf6 Bc5 Kf7 Re5 Kg6 Rg5+
r3bKRN/1nQ2P1p/1Q3r2/B2q1rp1/N1R2q1b/1R2pn1q/1b3Br1/1k5B b - - 0 1 illegal: No proof kernel
1Nn1n2q/BNkQpb1n/Kb1N2r1/2prp3/2P5/1RB1Q1q1/1b5Q/n1R3q1 b - - 0 1 legal: proof: e4 a5 g4 h5 b4 hxg4 e5 axb4 e6 dxe6 Qf3 f5 Qb3 e5 Qf3 f4 Qd1 f3 Bg2 fxg2 Ke2 Kd7 Kd3 g5 Kc4 c6 f4 b3 h4 g3 a4 g4 d4 b2 a5 Bh6 d5 Kc7 a6 Nf6 a7 Rg8 h5 Nbd7 f5 Nf8 Na3 b1N Nf3 g1Q Bd2 g2 Bc3 g3 Rh3 Ne8 f6 Bc1 h6 Rg6 h7 Bb2 h8Q Be6 f7 Nh7 f8B Bf7 Bh6 b5+ Kb4 Qb8 Ka5 b4 Ka6 b3 Be3 Nd2 Rc1 Nc4 Nd4 Ncd6 Nc4 Nc8 Nd6 Qh2 Qd2 g1B Bf2 g2 Qe3 Ng5 Rf3 Qg3 Qh2 Nh7 Bb4 Ba1 c4 b2 Bd2 b1N Bc3 Qh3 Rg3 Na3 Rf3 Qb3 Rg3 Rb8 a8Q Nc2 Rf3 Bb2 Qb7+ Kd8 Qb5 Na1 Qa4 Rb5 Rg3 Qb4 Qd1 Kd7 Qg4+ Kc7 Qd7+ Kb8 Rf3 Qb3 Qef4 Qc2 Qdf5 Ng5 Bd2 Kc7 Ne4 Nb6 d6+ Kd8 d7 Kc7 d8N Qh8 Rb3 Qc3 Nd6 Nh7 N8b7 Qg3 Bc3 Rd5 Be3 Nc8 Qd7+ Kb8 Nc2 Bf2 Nb4 g1Q Bb6 Bc5 Qe3 Bd4 Qf5 Bc5 Ba7+ Kc7 Qg4 Bb6 Qgh3 c5 Nc6 Qg8 Nb8 Qh8 Qd7#
b1R2K2/bRn1pPR1/2QnbB1r/2r1qN2/1n2B3/1q4p1/1B1Np2r/Q1b4k b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Kf6 h4 Ke5 a4 b5 c5 g5 c6 d5 a5 b3 f3 d3+ Ke3 b4 a6 g3 a7 g2 c7 b2 h5 d4+ Kf2 b3 Kg3 e3 h6 e2 f4+ Ke4 h7 d2 f5 g4 Kh4 d3 Kg5 g3 Kg6 Nc6 Kf7 Qd4 f6 Be6+ Kg6 Nh6 c8R Nb4 f7 Nf5 Nh3 Kf3 Rd8 g1B Rd7 Bh6 Ra4 Qe5 Nf2 Nd6 Ra6 Rac8 Rb7 Rc5 a8Q Bf4 Qc2 d1R Ng4 d2 Nh6 Re1 Ra1 d1N Nf5 Ne3 Nd2+ Kf2 Qa7 b1B Bg2 b2 Be4 Ned5 Nf3 Kg2 Rh4 Rd1 Rg4 Nc7 Qca4 Rf1 Qc6 Kh1 Ra3 Bd4 Rc3 Rf2 Qa1 Rh2 Rg5 Bc2 Rg4 b1Q Bb2 Bc1 Rc4 Ra8 h8B Ra6 Bf6 Bb3 Rc2 Bbd5 Kg7 Qa2 Kf8 Qb3 Rg7 Bg1 Qd7 Bc6 Rb6 Ba8 Rb7 Rd5 Qb5 Ba7 Rc6 Rc5 Qba4 Ncb5 Rc8 Nc7 Qc6 Nde8 Qca4 Bd5 Bg5 Rah6 Qc6 Nd6 Bf6 Be6 Nd2+
2qQ2R1/2Rp2r1/3n1pB1/N4P1Q/B1kbb3/1p3Q1n/1rbB3K/1qb1nqN1 b - - 0 1 legal: proof: d4 e5 h4 exd4 c4 g5 b4 gxh4 b5 a6 Nh3 axb5 Ng1 bxc4 Be3 c3 Bd2 Bg7 Bc1 Bf8 g4 Ke7 e4 Ke6 a4 h5 f4 b5 Kf2 c5 Kg2 c4 a5 h3+ Kg3 b4 a6 h4+ Kh2 d3 a7 d2 e5 Kd5 e6 b3 f5 f6 g5 c2 e7 c3 e8B Rh7 g6 Bb7 g7 Na6 Ra4 Nb4 Qe2 d1B Qe1 Nh6 g8Q+ Nf7 Qg7 Nd6 Be3 c1Q Qh6 c2 Bg5 Rg7 Ba6 Qc8 Bh5 Nd3 Qf2 Ne1 Na3 Qb1 Be3 c1B Nb5 Bc2 Bd2 Bc6 Ra3 Kc4 Bg6 B6e4 Qh5 Be7 Qff3 Bd8 Bb7 Bb6 Bc6 Bd4 Ne2 Bc5 Rg1 Bd4 Kh1 h2 Ra5 Rb8 a8Q Rb7 Rg5 Rc7 Ng1 Ra7 Ra1 Ra2 Na7 Rb2 Qb8 Nd3 Kg2 h1N Ba4 h3+ Kh2 Nhf2 Nc6 Ne1 Qb6 Ned3 Rg4 Ne1 Qd8 Qb8 Bb5+ Kc5 Ra7 Rg8 Rc7 Qc8 Ba4 Kc4 Be8 Rg6 Kg3 h2 Nh3 h1Q Rg5 Rh6 Rg8 Rh7 Bg6 Qf1 Kh2 Rg7 Ng1 Nh3 Na5+
Q6q/2qp2N1/k3P1n1/2R2p2/2r1QBbn/2p3q1/1NrQBN2/nK1nbb1R b - - 0 1 illegal: No proof kernel
1r2RB2/1b1pn1rn/2P1pN1Q/n3nQBK/3b2p1/1B1bN2R/3qk3/2q1q2R b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 f4 Ke6 c4 Kf5 h4 g5 a4 b5 a5 e6 h5 b3 c5 g3 a6 Kg4 h6 g2 f5 b2 f6 b4 a7 e3 h7 b3 f7 d3+ Ke1+ e2 Kf2 d2 Na3 b1Q Rh3 b2 Rh2 Qc7 Nh3 g1N Rh1 Nc6 Nc2 Nf3 Ra6 e1N Na3 Na5 Nc4 Bg7 f8B Ne7 Nf4 Bb7 Qc2 d1Q Nd5 Rb8 a8R Rg8 h8Q Ne5 Qh6 N1f3 c6 Qe1+ Kg2 Qd6 Rb6 Bf6 Rb3 Rg7 Be2 Qa1 Bd1 b1B Qf2 Bd3 Qc5 Kf5 Kh3 Ke4 Nce3 Qac3 Ra3 Qc2 Bd2 Qc1 Bb3 g4+ Kg2 Qed1 Kg3 Ng5 Kh4 Kf3 Kh5 Qe1 Qb5 Nh7 Qc5 Bh4 Nf6 Ke2 Qd5 Bf2 Qe4 Qd4 Qf5 Qda1 Ng2 Bd4 Bg5 Qab2 Ne3 Rc8 Rb8 Qbd2 Ra8 Rc7 Re8 Rc8 Ra1 Rb8 Rh4 Qc5 Rd1 Qcc1 Rh3 Qg3 Rg1 Qge1 Rgh1
1NK1n2B/2PR3r/3q2q1/3qq2Q/3rQbBp/1pkn2B1/1n1p1N1Q/1r2R2b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Ke5 g4 b5 a5 d5 c5 h5 a6 b3 a7 b2 f3 e3 Kd3 b4 c6 h3 g5 b3 c7 e2 g6 e1R g7 h2 Nh3 h4 Rg1 h1Q Rg4 Nd7 Nd2 b1Q+ Qc2 Bb7 Be2 Rh7 Ne4 Ngf6 g8Q Bh6 Nhf2 Ne8 Nf6 Bf4 Qf7 Rb8 a8Q e6 Be3 Nc5+ Kd2 d3 Kc3 d4+ Kc4 d2 Kb5 d1N Kb6 d3 Nd7+ Kd5 Qh5+ e5 Rg7 Nb2 Bd4 Qg2 Bc3 Kc4 Re7 e4 Bh8+ Kb4 Rg7 Rc8 Nb8 e3 Rd7 Qf6+ Ka7 Rd8 Bd1 Rh1 Be2 Qbg1 Re1 Qd6 Bd1 Be4 Qad5 e2 Qdf5 Be5 f4 d2 Qh3 Bb7 f5 Ncd3 f6 Bf4 f7 Qgd5 f8B Qg6 Qh2 Bc6 Bfg7 Ba8 Be5 Rg1 Rf1 e1Q Bg4 Qee4 Re1 Bc6 Re2 Rb1 Re1 Qe2 Qd1 Qee4 Qe2 Qed4+ Ka6 Kc3 Qf3 Be3 Bg3 Bf4 Qe4 Q4e5 Ka7 Qdg8 Qe3 Bh1 Qe4 Qgd5 Nc6 Ra8+ Kb7 Ra4 Kc8 Rd4 Nb8
kb6/2PQ2R1/R3b1pr/1rn1BN1b/2r2Nnp/2pq4/1R1N1Qqn/2nBK3 b - - 0 1 illegal: No proof kernel
2R1r3/R1P1Bn2/qn1pNq1b/2r1k3/n1bR2B1/Q2p1p1K/Q3Qr1n/q4N2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 c4 Kf6 e4 h5 g4 b5 Kg2 h3+ Kh2 d3 a4 f3 a5 h4 a6 d6 c5 f2 g5+ Ke5 c6 f5 c7 f4 a7 b3 g6 f3 g7 b4 Be3 b2 Qa4 b3 Nc3 b1Q Nd1 b2 Bg5 Ba6 Be2 Nd7 Qc2 Bc4 Be7 Rh5 Ra6 Qa1 Ne3 b1N Qa2 Nh6 g8R Nb6 Bf1 Nc3 Ne2 Nca4 Nd4 Nf7 Ne6 Bh6 Re8 Rb8 a8Q Qc8 Ra7 Qa6 Rh8 Re8 Bg2 f1R Qa3 Rf2 Nf1 Qc1 Qa2 Qg5 Rg8 Qf6 Rg4 Rh8 Rg8 Rf5 Rc8 Re8 Qb8 Rd2 Rd8 Rg8 Rg1 Nd7 Qbb3 Ndb6 Ng5 Kf4 e5 Rc2 Rc8 Re2 e6 Rc5 Bd8 Kf5 e7 Rf2 e8Q Rf8 Qe1 Re8 Ne3+ Ke5 Qba3 Rc2 Qd2 Rb2 Re1 Rc2 Kg1 h2+ Kf2 h1Q Ne6 h3 Kg3 h2 Be7 Qf1 Bh3 h1N+ Kh2 Ng3 Bg4 Qg1+ Kh3 Nf1 Qd1 Nh2 Re2 Qe1 Nf1+ Kd5 Re4 Rf2 Rd4+ Ke5 Qdc2 Qa1 Qe2+
6qr/B1pq4/4B3/QbK2bNN/1rRp4/NqbkpqPR/1B3Q2/nn1r4 b - - 0 1 illegal: No proof kernel
1Rqq1brQ/k1pb2n1/1Q1N4/3n1R1p/pr1P2b1/2BB2Kn/rN3BR1/2n5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 b4 Kc6 g4 Kb7 d4 h5 e4 f5 e5 a5 g5 h3 b5 h2 g6 a3 g7 a4 b6 a2 e6 f3 e7 f4 e8Q c3 Qee2 c2 Na3 Bg4 Be3 c1N Rb1 a1R Nh3 Nf6 g8R Nc6 Nb5 Ne8 Qb3 Ra2 Nd6+ Kb8 b7 Ne7 Rg6 Ng7 Qb6 Rg8 Rb4 Bd7 Rg2 Nd5 Qd2 Ra5 Bd3 Rb5 Rf1 Qc8 Rb2 Rb3 Qc2 Rb4 Qcc6 Bg4 Qe8 Qd8 Qe5 Qc8 Qf6 Qd8 Qh6 Bd7 Qh8 h1N+ Ke1 Qc8 Nf2 Bg4 Nd1 Nf2 Rb1 Nh3 Nb2 Bd7 Qb5 Ka7 b8B+ Ka8 Ba7 f2+ Kd2 f3 Bb6 Bg4 Ba5 Ka7 Qc6 Rb8 Bc3 Rb4 Rfg1 f1Q Bf2 Bd7 Rg5 Qg2 Rf5 Qg5+ Ke1 Qh4 Rg2 Qhd8 Bg3 f2+ Kf1 Nb3 Ke2 f1B+ Kf3 Nc1 Bf2 Be2+ Kg3 Kb8 Qb6+ Ka8 Nd1 Bg4 Rb3 Bc6 Nb2 Bd7 Qb5 Ka7 Qc6 Rc4 Rb8 Rb4 Qb6+
R1Q3bN/Brp5/P2rR1Kn/QB3Rb1/nq3bb1/4p1q1/p1rqB2N/4k3 b - - 0 1 illegal: No proof kernel
rr6/1Pb1R3/3R1nN1/5Q1k/3p1K2/bQB1N1Qq/1q1n1pBp/rbq1N2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 b4 f5 c4 Kf7 g4 Kg6 e4 a5 g5 d5 e5 f3 b5 f2 c5 f4 e6 f3 b6 a3 e7 a2 e8N h3 b7 h4 c6 h2 c7 d3 Ke3 h3 Ba3 a4 Qe1 d2 Ba6 d1Q Bc1 f1Q Qg3 a3 Nd6 f2 Ne2 Kh5 g6 Nf6 g7 Bf5 c8Q Nc6 g8Q Ne5 Kf4 Nf3 Nd2 Qb6 Bb2 Qc1 Bc3 Qbb2 Nc4 Bb1 Ne3 d4 Rg1 h1R Qb3 h2 Qd7 Qh3 Re1 Be7 Bc4 Bb4 Bd5 Rhb8 Be4 Ba5 Qf5+ Ng5 Bg2 Bb6 Qfe6 Nge4 Nf3 Nd2 Qd7 Bh7 Rb1 a1B Qc8 a2 Qce6 Qa3 Qd7 Bb2 Qf5+ Kh6 Ra1 Qb4 Rb1 Ba3 Rb2 a1R Ra2 Bb2 Ra6 Bc7+ Rd6 Qa3 Nh4 Qa2 Ng1 Ba3 Ngf3 Qab2 Re2 Bg6 Ne1 Bh7 Nc4 Bg6 Re7 Bh7 Ne3 Bg6 Qd7 Bb1 Ng6 Kh5 Qf5+
1qBN3Q/1P1RqQ1K/1kq2B2/2r2pRp/1p3QN1/n1N1b3/b6q/2rbn1r1 b - - 0 1 illegal: No proof kernel
1qr1q2r/P1B3QN/1Q1r3R/n1p1pQbk/4n3/N2n2p1/B5R1/bN3bKn b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 Kf7 Kf2 Kg6 h4 b5 a4 c5 d4 g3+ Kg2 b3 a5 c3 a6 e3 d5 e2 f5+ Kh5 f6 g5 d6 g4 d7 b2 f7 b4 a7 c2 Nd2 b1Q Qe1 b3 Qd1 b2 Rh3 e1N+ Kh1 Nd3 Nc4 Ba6 Bf4 c1B Bc7 Qe8 d8Q Nc6 Na3 Na5 Ne2 g2+ Kg1 Bg5 Qc2 Nf6 Nc3 Ne4 Ra2 Bg7 f8N Rc8 Nh7 Nef2 Qd6 Nh1 Qb6 Bd4+ Qf2 e5 Rh2 Qc2 Be2 Qb3 Ncb1 Bc3 Qf5 Qbb5 Qbf6 Qb8 Qb6 Bc4 Bd1 Bb5 Bb3 Ba6 Nd2 b1N Rc2 Bb5 Ba2 Ba1 Rh3 Nc3 Ndb1 Ne4 Rb2 Rd8 Rf2 Rd6 Re2 Kh6 h5 Ba6 Kh2 g1R Rg2 Rf1 Rh4 Rf3 Kg1 g3 Rh3 Nb4 Rh4 Bf1 Rhh2 Rb3 Rh3 Nd3 Rhh2 Kg7 h6+ Kg8 Rf2 Qbc8 Nf8 Rh7 Rfg2 Kh8 Qc6 Rb8 Qb5 Qb7 Qb4 Rc8 Qb6 Qb8 Rh3 Re7 h7 Kg7 Qd7 Kf6 h8Q+ Rg7 Nh7+ Kg6 Qf8 Rg8 Qde7 Rh8 Qfg7+ Kf5 Rh6 Kf4 Qef7+ Kg4 Rg6 Kh4 Qf5 Kh5 Rh6+
5b1r/p1NR1N1B/3q4/K1nr2pb/Q1P4R/Br2p1R1/2N1Qbn1/q2k1qb1 b - - 0 1 illegal: No possible last move
rq2b1nb/p6p/r2QN3/n2r1RRQ/P1R2p2/KNBQn2b/1rq5/1k3B2 b - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 g4+ Ke4 a4 d5 g5 c5 g6 f5 e3 c4+ Ka2 d4 b4 d2 g7 d3 b5 h3 b6 c3 b7 c2 Qg4 d1Q Qg3 h2 Qg4 d2 Bc4 Nc6 b8Q Na5 Qh5 f3 Nh3 f4 Qd6 f2 Ka3 f1N Bb2 c1R Bc3 Qc2 Be2 d1R Ng5+ Kf5 Qf3 Rd5 Nd2 Bd7 Ra2 Qb8 Nb3 Be8 Ne6 Rb1 Ra1 Rb2 Rc1 Be7 Qh3+ Ke4 Rg1 h1B Rg5 Bd8 Rf5 Bf6 Ba6 Bg2 Be2 Nh2 Bf1 Ng4 Qh5 Bh3 Qg6 Kf3 e4 Ne3 e5 Ke4 Qg3 Nh6 Qg6 Rf8 g8R Bh8 Qh5 Rf6 Rgg5 Ng8 Qd1 Rh6 Qd3+ Kf3 Nec5 Rg6 e6 Kf2 e7 Rf6 Qd7 Ra6 Ne6 Kf3 Q3b5 Ke4 Qd6 Bc6 e8Q Bd7 Qbc5 Bb5 Qh5 Be8 Bg2+ Kd3 Qcc7 Qb6 Qcd8 Qb8 Bf1+ Qe2 Rd1+ Kc2 Rd4 Kb1 Rc4 Qc2 Q8d7 Rb5 Qd3 Rd5 Qd6
3q1nRR/2rn2b1/5B2/2NK1B2/1ppBn1nP/k2n1p1b/R2nQ2N/Qr5b b - - 0 1 illegal: No possible last move
3K4/krB1r1r1/N7/Q1RR2pP/r1Br1b2/Rpn1r3/1nq1NpbB/4b2Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kc6 a4 Kb6 e4 c5 d4 f5 a5+ Ka7 h5 b5 e5 f3 Kg3 c3 Kf4 f2 d5 c2 a6 c4 e6 g3 Ke5 g2 e7 b3 e8Q f4 d6 c3 d7 b4 Ke6 f3 Rh3 b2 Ra3 Rh7 Bd2 c1R Rh4 c2 Bb5 f1R Qe2 f2 Bh6 Nf6 Qf7 Rcd1 Rf3 c1B Rh1 Bf4 Bd3 Ne4 Bc4 Nc6 Nc3 b1R Rd3 Na5 Qd2 Qc7 Na2 Bb7 d8B Nc3 Rd5 Rfe1+ Ne2 g1R Qe8 b3 Qc6 Bb4 Rc5 Qc8+ Ke7 Rg3 Qe4 Re3 Bc7 g5+ Bg7 Rb8 Qd5 Rd4 Qf5 Ka8 a7 Ra1 Qfe5 Bd5 Qb1 Kb7 a8R Bg2 Ra6 Qf5 Rd6 Qd3 Rdd5 Ka7 Rh4 Rb6 Kd8 Rb7 Bf8 Qe4 Bfd6 Rg7 Qd1 Qc2 Rh1 Ba3 Nb4 Bb2 Na6 Ra4 Qa1 Ba3 Qf5 Bb4 Qh3 Ree7 Rg1 Re3 Qh1 Ree7 Nc1 R1e3 Ne2 Ne4 Rd1 Be1 Qa3 Nc3 Ra1 Be4 Qb4 Bf3 Ra3 Bg2 Bb5 Nc4 Qa5 Nb2 Bc4 R3e6 Bb5 Be3 Bh2 Bf4 Bd3 Re3 Bc4
RnQ3q1/1bQ1n2r/6Bp/1rR1bN2/k2Nn1p1/B2pKB2/2P1Q1b1/1b2b2b b - - 0 1 illegal: No possible last move, all moves rejected
2B5/2nN1R1N/2b2bp1/1Rp4q/1prBk1rQ/b3P1bB/1b2K1R1/3rb1Qn b - - 0 1 illegal: No proof kernel
r3Q3/3pB1Nk/b3R1bb/NB1pKPB1/1R1nRr1p/r2Q2b1/7n/b2bq3 b - - 0 1 illegal: No proof kernel
k5rR/2Bprr2/1npP1b2/3NRq1b/4Q1nb/7Q/1bNpbbB1/1K3B1Q b - - 0 1 illegal: No proof kernel
1q3b2/1p1b2NK/2pBbbR1/1QQ1b1P1/3Q1nB1/nn1brR2/2Rr1p2/1k1N4 b - - 0 1 illegal: No proof kernel
Q1nb3n/P1r1r2p/2bNQpR1/2KR2B1/b2NbRBb/3B4/3p2b1/4rk1q b - - 0 1 illegal: No possible last move
kNb3nn/4N1nn/R1KBbQpR/5Bqp/2R1nb2/1Pr1r1Q1/1p6/1b4N1 b - - 0 1 illegal: No proof kernel
5b2/1bNQn1n1/1r1bBp2/pn1Bq1RN/k4B1K/Qb6/1PNpn2R/r1n5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 d5 c4 Kd7 e4 Kc6 h4 g5 h5 a3 e5 g3+ Kg2 a2 h6 g4 h7 d3 e6 d4 e7 f6 e8N d2 c5 d3 Nc7 Na6 Na3 Qe8 Qe2 d1B Ne6 Ne7 Rb1 a1N Ng7 Bb7 Nf5 Nb3 Qf2 Nc7 Qe3 Nb5 Bd2 Nc1 Rh2 Bb3 Ne2 a5 Nd6 Rb8 Nc2 f3+ Kh1 f2 Kg2 Qh5 Ne8 Qe5 Nf4 Rg8 Be2 f1N h8Q Rg5 Qh7 Rf5 Be1 d2 Nh5 Rf4 Nc7 Ra4 Bc4 Ra1 Kg1 g2 Kf2 g1N Bd5+ Kd7 Qhd3 Nge2 c6+ Kd6 Kg2 g3 Kh3 g2 Kh4 g1B Bg3 Bf2 Qg5 Bc5 Bf4 Nfg3 Qdf5 Bb4 Qd7+ Kc5 Qgf5 Kb6 Qg5 Bd6 Qgf5 Nd3 Rg1 Ndc1 Rgg2 Ned4 Rg1 Nge2 Rg5 Kc5 Ne8 Ne6 c7 Kb6 c8B Ng7 Nc7 Kc5 Qe8 Kb6 Bce6 Kc5 Qd7 Kb6 Nd4 Kc5 Qc2+ Kb4 Qc5+ Ka4 Nc2 Ba6 Bg3 Rb6 Bf4 Bb7 Qa3+
B7/1RbbK1Nr/q2rp1b1/R2rr2P/RBr3k1/p3n1p1/1bQ1NB2/1n2Q3 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Kg6 c4 Kf5 b4 d5 f4 g5 c5 a5 h5 a3 c6 e6 c7 d3+ Ke3 d4+ Kf2 a2 Kg3 e3 b5 e2 b6 e1R b7 d2 Bc4 a4 Ba3 d3 Be7 a3 Ne2 Ra4 Nec3 Nc6 b8R Na5 Rb3 Re5 Bf6 Bd7 c8Q Ne7 Rb2 Nb3 Rh4 Rh7 Ne2 Qa5 Nbc3 Qa6 Rab1 a1B Ne4 Nd5 Qe1 Ne3 Bd5 d1R Ba8 d2 Qc2 Bd6 Bd8 Rd5 Bb6 Bc7 Nf6+ Re4 Bc5 Rc1 Bb4 d1B Ne8 Nd2 Rb3 Bb2 Ng7+ Kf6 Bc5 Ree5 f5 Rd6 Rb7 Rdd5 Kh2 g3+ Kh3 g2 Ra4 g4+ Kh4 g1R Rb5 g3 Rba5 Rd6 Bb6 Red5 Ba7 Ke5 Kg5 Rf1 f6 Rf5+ Kg6 Rg5+ Kf7 Rf5 Ra1 Nb1 Ke7 Rg5 f7 Rf5 Qd3 Rc4 f8B Bc2 Qdd1 Bd3 Qc2 Ke4 Bc5 Kf3 Bb6 Kg4 Ra2 Nf1 Bf2 Rfe5 Ra1 Bg6 Ra2 Bc3 Rb2 Ne3 Rb7 Bb2 Kf6 Rb6 Bb4 Rbd6 Ke7
kR1qr3/1rbrqNK1/1n1p2N1/2n1r1Q1/B2QR3/Bp1pr1BQ/6Pr/7b b - - 0 1 illegal: Other
3nN2B/k1Kb2Nr/b2p2n1/1QpP1Nb1/1b6/1p1Q4/bB1Rnr1R/1B1qn3 b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 Kf2 f5 h4 b5 d4 g5 a4 f3 Kg3 c2 e4 f4+ Kh2 g3+ Kh3 g2 Kg4 b4 Kf5 f2 Ke5 f3 a5 g4 a6 g3 h5 Rh7 a7 Nc6+ Kd5 Nge7+ Kc5 Ng6+ Kb5 b3 e5 Bb4 Bb2 c1B h6 Bg5 Nh3 g1N e6 g2 e7 Ne2 Ra2 g1N Bg2 f1B Nc3 f2 Nf4 Nf3 Qd3 Ne1 Be4 Bh3 Ncd5 f1B Rh2 Bf5 Ne6 B1h3 Ne3 Ba6+ Ka4 Rb8 a8Q Rb5 Qb8 Rc5 Bh1 Rc2 Qbb5 Be4 Nf5 Rd2 Qc3 Bb1 Be4 Bg4 Qcd3 Bh3 Ra1 Ba2 Rb1 d6 d5 Kd7 e8N Kc8 Rd1 Qf6 N6g7 Nd8 Qg3 c5 Bb1 Rc2 Rd2 Qd4 Qgd3 Qg1 Nd4 Bd7 Ndf5 Ba3 Ka5 Bb4+ Kb6 Kb8 Qa5 Ka8 Kc7 Ka7 Qab5 Rc3 Qd4 Rf3 Qdd3 Rf2 Ne6 Re7 h7 Qf1 h8B Rh7 N6g7 Qh1 Qh3 Qf3 Qg3 Qd3 Qe3 Qc2 Qc3 Qd1 Qcd3
Qrk4r/R5p1/4p1qn/BB4QN/1K2N1P1/nb3p1r/1bb3br/rQ1RB3 b - - 0 1 illegal: No proof kernel
q6r/2B2Pnb/p1Bpn2Q/2n5/R3qQNk/1n2R2r/3n1bp1/1Q1K1nNR b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 b4 Kf7 h4 Kg6 c4 Kh5 f4 e5 b5 g5 b6 d3 f5 e3 b7 e2 c5 a6 f6 d2+ Kf2 e1N Ke2 e4 f7 g3 c6 e3 c7 g4 Nh3 a3 Rh2 a2 Bb2 g2 Nc3 g3 Qc1 g1N+ Kd1 g2 Nb5 Ne7 Qc5+ Nf5 Be2+ Nef3 Qb4 Bc5 Na3 Ng7 Bb5 Ne2 Ng1 Nf4 Be5 Nfe6 Qf4 Qf8 Rh1 e2+ Kc2 e1Q Bc6 d1N Nc4 Bb6 Ne3 Nd2 Ng4 Bf2 Rh3 Qe2 Re3 Qf3 Bd6 Qe4+ Kc1 Nf1 Be5 Nc3 Bd6 Nb1 Kd1 Nbd2 Be5 Kg6 h5+ Kh7 h6 Kg6 h7 Kh5 Bc3 d6 Ba5 Nd7 b8Q Kh4 Qb1 Ndc5 Bb6 Bd7 c8Q Rb8 Bc7 Rb3 Qb7 Qa8 Qc2 Rd3 Qbb1 Ra3 Re1 Rh3 Re3 Nd4 Qd3 Bf5 Qdc2 Nde6 Qd3 Rc8 h8R+ Bh7 Qdc2 Qe5 Qg6 Qe4 Re8 Rd8 Re7 Rh8 Re8 Bg3 Rb8 Be1 Rb4 Bf2 Ra4 Nb7 Qb4 Nbc5 Rc1 a1N Qb1 Nab3 Ne2 Nd3 Kc2 Nh2 Rh1 Ndc5+ Kd1 Nhf1 Ng1 Qe8 Rg3 Qf8 Re3 Qa8 Qgh6+
1qBrnb1N/r2Qp2K/n1b2r2/2r4Q/1P3Rp1/n5N1/2npNR2/B1nB2k1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Ke6 c4 Ke5 b4 d5 h5 g5 h6 a5 h7 e3 Kd3 Kf4 c5 g3 c6 g4 f3 a3 c7 g2 Qd2 Kg3 f4 a4 f5 a2 f6 e2 f7 Kf2 Qg5 e1R Bf4 a3 Qf5 Na6 Rh3 Rc1 Rh2 Rc5 Qe4 Ra7 Qe5 Bd7 c8B Nf6 Bh6 Bc6 Bg7 Ne8 Bb7 Qb8 Nc3 Rg8 Rd1 a1N h8N a2 Nge2 Nc2 Ng3 a1N Bc8 Kg1 Qh5 Na3 Be5 Rg6 Be2+ Kf2 Rd2 N1c2 Bd1+ Kg1 Rf2 Rd6 Rf4 Rf6 Ke2 d3+ Kd2 Bh6 f8Q d4 Qff7 Bg7 Qe6 Bf8 Qd7 Ne3 Ke1 d2+ Ke2 Nec2 Kd3 Nb1 Nd5 Nba3 Ke4 d3 Ba1 Bb7 Bf3 d1R Be2 Rd2 Bf3 Bc6 Bd1 Rd6 Kf5 Rf2 Qb7 Rd8 Kg6 d2 Qd7 Rf1 Kh7 Rf3 Rf7 Rf6 Nf4 Kf2 Rh3 g1N Rh1 Ne2 Rh2+ Kg1 Rf2 Ncd4 Nd3 Ndc2 Nc1 Re6 R7f4 Rf6 Na2 Nc1 Nc3 Rcf5 Nge4 Rd5 Ng3 Rc5 Nce2+
r2rBK1b/2b1p1n1/rRN1rNB1/3P1kN1/p2q3p/4R3/1n3r2/b1B2QQb b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Ke6 Kf4 h5 Kg5 c5 Kg6 a5 g4 c3 d4 h3 f4 h4 b4 c4 b5 a3 b6 a2 b7 c2 g5 h2 Nd2 e3 Qe2 c3 Qa6+ Nc6 b8N e2 Qa7 e1R Bb5 a4 Ngf3 Nf6 Qc7 Bb7 Rb1 a1B Qb6 Nh5 Ne4 Bg7 Nf6 Rf8 Kh7 Bh8 g6 Ng7 Ng5+ Kf5 Rg1 h1R Rg3 Ref1 Re3 Na5 Be8 Nc4 Nc6 Rf2 Qa7 Rhf1 Rb6 Re1 Kh6 Nb2 Kh7 Nh5 g7 Qd6 g8B Ng7 Bgf7 Qd8 Ne5 Bh1 Nc6 Qd6 Kh6 Qc5 d5 Qd4 Qa6 Rg8 Qf1 Rf8 Qg1 Ra6 Bd2 c1R Kh7 Rb1 Bc1 c2 Bh5 Rf7 Kg8 Ra8 Ng4 Rf6 Bf7 Rd6 Nf6 Rdd8 Kf8 Ra6 Rh3 Re4 Re3 Re6 Nh5 Rd2 Kg8 Nc4 Rb5 Raa8 Rb7 Rb6 Rb8 Rba6 Rb6 Rg2 Bg6+ Kg4 f5 Nb2 f6 Rdd6 f7 Rdd8 Qe1 Rd2 f8Q Rh2 Qff1 Rf2 Nf6+ Kf4 Bh5 Kf5 Qg1 Qe4 Qef1 Qb4 Kf8 Qd4 Bd2 c1B Re1 Nd1 Bf4 Ba3 Bf7 Bd6 Bc1 Bc7 Re3 Nb2 Bg6+
2b1K3/4pp1N/1b1Qn2b/PQ1Rn3/2Bp2r1/Q4qRn/n3b2B/1br2kNR b - - 0 1 illegal: No proof kernel
1bB1qB1R/kp3R2/1NqRn1P1/1rb1Knr1/p2N1pNb/8/bbQ5/4b1Q1 b - - 0 1 illegal: No proof kernel
3r1QR1/1pQ2bp1/3rkRn1/1N1rn3/1b1nKQ2/n2N1B2/1prr2PB/1q1B4 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 h4 cxd4 b5 Qxh4+ Kd2 Qh2 b6 axb6 Ke1 b5 Bb2 b4 Ba3 Ra6 Bc1 Ra8 Kf2 Ke7 Kf3 h5 a4 f5 e4 d5 c4 d3 a5 d4 c5 b3 e5 b2 a6 h4 c6 d2 c7 d3 a7 h3 e6 Nd7 Qb3 d1R Qb6 d2 Qa6 Rh6 Qa5 Ne5+ Kf2 f3 Ke3 f4+ Kd4 f2 Bc4 f1R Bb5 f3 Qb6 f2 Ne2 Qg1 Ke4 h2 Nbc3 Kf6 e7+ Be6 e8Q Rd8 a8Q Ne7 c8B N7g6 Qaa5 Bb4 Qe3 Bf7 Qc7 Rfe1 Qg3 f1N Ba4 Ne3 Qf8 Nc2 Nb5 Na3 Bg4 Rd5 Bh5 Ke6 Qf4 Rf1 Bb3 Rf2 Bf3 Qe1 Rg1 h1N Rf1 Rh8 Qfc5 Rd8 Qf8 Nc2 Ra8 Na3 Qfc5 Rd6 Rg8 Rd8 Qf8 Ng3+ Ke3 Nf5+ Ke4 Nd4 Rh1 Ng4 Rh5 N4e5 Rf5 Qg1 Bc2 Rdf1 Ba4 d1R Bd2 Rc1 Bd1 Rc2 Nc1 R8d6 Be1 Rfd2 Bg3 Rd8 Nd3 Rff2 Bde2 Qb1 Bd1 Rc6 Bh2 Rcd6 Qg5 Rc2 Qf4 Rfd2 Rf6+
1k1nr1r1/RpNR1p2/2b1N3/RNbrpQ2/nqB3Bb/1Pbr4/8/4bKQ1 b - - 0 1 illegal: No proof kernel
5B2/2R2QQ1/Br1p4/2P1nb1R/2pb2k1/1bNr1nbq/B2rp1n1/KN1n3N b - - 0 1 illegal: No proof kernel
b1Qb2rn/2NNrn2/p1p1qB2/2p4K/3B4/1Q2br2/2R2rP1/bB2kRNn b - - 0 1 illegal: No possible last move
N2b4/rB2RpRb/q5B1/r1bp2n1/2Rnr1nn/1N1P1p2/5kr1/NQK2Q2 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 e4 Ke7 a4 Kf6 h4 Ke5 c4 Kd4 c5 g5 e5 b5 a5 d5 e6 g3 h5 g2 d3 Ke3 c6 b3 c7 g4 h6 g3 a6 b4 h7 Qf6 e7 Ra7 e8B Bc5 Nd2 b1R Nh3 g1B Ra5 b2 Ra4 b3 Ra2 g2 Bb5 Nc6 Ra1 Bf5 c8R Nd4 Bc6 Nh6 Nf2 Re8 h8Q Bh7 Nfe4 Ng4 Bb7 Rc1 Ra4 b1R Rc4 b2 Be2 Rc2 Rc7 Ra1 Re7 b1N Nb3 Ra5 Na1 Nc3 Nd2+ Ne4 Qb1 Qg6 Kd1 Kf2 Qe5 Ng5 Ndb3 Bb6 Qf5 Bd8 Bf3 Re2 Rh2 Rg8 Rh3 Re4 Kc1 Ne5 Qc8 Nge6 Qa2+ Ke3 Qc7 Nc2 Ba8 Rb7 a7 Bf2 Rb4 g1N Bg4+ Ngf3 Rh2 Nh4 Bf5 Bg1 Qc8 f3 Qb1 Qf6 Rh3 Rg5 Qc3 Rg2 Rg3 Rc7 Rg7 Ng5 Rd4 Qa6 Rc4 Ng4 Bg6 Ke2 Bc6 Bc5 a8N Ra7 Bb7 Nd4 Qd2+ Kf1 Qd1+ Kf2 Qf1+
7r/n2qpPb1/2B3K1/1n1b2bB/1p2prb1/n1B2nk1/8/RNRQQNNr b - - 0 1 illegal: No possible last move
1Q1Qn1B1/Kpb2r1B/2k1p2b/6r1/1n2PN2/N1qb3R/1np2Q1N/1n2r1bR b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 f5 h6 g5 g6 Bb2 gxf5 g6 f4 Bf6 Qd6 Bh4 Qd8 Bg5 hxg5 Kf2 Kd7 d4 f5 a4 c5 h4 b3 d5 b2 h5 c3 e3 f3 h6 f4 h7 c4 d6 g4 g7 g3+ Ke1 f2+ Ke2 g2 a5 Qc7 a6 Nf6 g8B Bh6 a7 Na6 Qd3 f3+ Kd1 c2+ Kd2 Bf4 Kc3 c1B Kd4 c3 Bc4 c2 Ra3 Rg8 h8Q Nb4 Bb3 Ne8 Qh2 Rg7 Be2 f1N Bg8 f2 Nf3 g1B Qh4 Bd2 Nh2 Rf7 Rc3 Bh6 Na3 b1N Bh5 Be1 Bg6 Nfd2 B6h7 f1R Qf4 Bg3 Qf2 Re1 e4 Nc4 Qd2 Bgf4 Rh3 Bg3 Qg5 Nb2 Qf4 e6 Qe5 Nc6+ Kc5 Nb4+ Kb5 Qc3 Kb6 Kd8 Qf4 Bd7 Qe5 Bc6 d7 Bb5 Qd6 Rc8 a8N Bd3 Ka7 Rc5 Nb6 Rg5 Qc7+ Ke7 Qb8 Bc7 Nd5+ Kd6 d8Q+ Kc6 Nf4
1nNqbn1R/p1bBPb1k/rQ2r3/1R2B3/3nKp2/p1b2N2/1r1N4/2R1Q1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 Kd3 g5 e4 f5 h4 Kf7 c4 Kg7 b4 f3 e5 f4 b5 a3 e6 f2 e7 g3 c5 g2 b6 g4 b7 g3 h5 Bd7 c6 Be8 h6+ Kh7 c7 Bg7 c8R Nf6 Rh2 Nfd7 Qf3 Nf8 Nh3 g1B Be2 f1N Qg2 Nd2 Bf1 Nb3 Qd2 g2 Qe1 Be3 Bb2 g1R Rc1 Bd2 Rh1 Ba5 Nd2 Bc7 Rab1 Rg6 Rg1 Ra6 Ba1 Rg8 Rb2 Bh8 Rg5 Rgg6 Ng1 Rge6 Ngf3 Bf7 Bh3 Bhe5 Ke2 d3+ Kf2 Be8 Rg8 Bc3 Bg4 Nd4 Rb5 Re5 Bd7 Ree6 Ne4 d2 Bb2 d1R Ned2 Nbc6 b8Q Bf7 Qb6 Rb8 Qe3 Rg1 Qe1 Ne2 Ba1 d4 Bb2 d3 Ba1 Bg7 Bf6 Ned4 Be5 Kg6 h7 Rb7 h8N+ Kh7 Rc4 Nb8 Rc1 Be8 Nf7 Bh8 Nb1 d2 Nd6 d1B Nc8 Bc2 Nbd2 Bcg6 Nb3 Bgf7 Nbd2 Ndc6 Ke2 Bg7 Kd3 Bf6 Bd6 Bc3 Be5 Nd4 Ke4 Rh6 Qc6 Rbb6 Qd6 Rh2 Qc5 Re6 Qb6 Rhg2 Nb3 Rc2 Nbd2 Rb2 Rh8+
4n3/2BNK1B1/7n/k2N2Q1/2rbBbnp/n1PRpr2/1q1R1bqp/3Q1Q1b b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 h5 f4 e5 b4 a5 g4 d5 b5 Kd7 g5 Kc7 g6 Kb6 f5 e3 Kf3 e4+ Kf4 a3 Ke5 e2 g7 e1B f6 h3 f7 d3 Be3+ d4 Nc3 h4 Bf2 a4 Rb1 d2 Nd5+ Ka5 b6 h2 b7 d3 Ra1 e3 Ne7 a2 Qb1 d1N Be2 d2 Nf3 a3 Ng1 Nc3 Bb5 d1N Bf1 Na6 b8B Qd2 Bb5 Bb7 Ke6 Nh6 Bc6 Nb5 Bfg3 Bf2 Nd5 Bd6 g8Q Bf4 f8Q Nac7+ Ke7 Ne8 Be5 Rc8 Qg5 Rg8 Qff5 Rf8 Nf3 Ba8 Bb7 Rc4 Bg7 Qe2 Qf7 Qf1 Ne5 Qg2 Bc6 Bb7 Qc1 Ba8 Rb1 a1B Nd7 a2 Rb3 Na3 Rd3 Bd4 c3 a1Q Re1 Qb2 Re2 Bfe5 Qfh5 Rf3 Red2 Bf4 Qhg4 Bg1 Qh3 Nf2 Qd1 Nfg4 Bb7 Bf2 Bc6 Qg1 Qhf1 Qg2 N5b6+ Qb5 Be4 Bb7 Nd5 Qb2 Qh5 Bc6 Qg5 Bfe5 N7f6 Qh3 Bf5 Rf4 Nc7 Bh1 Nd7 Rf3 Nd5 Qg2 Be4 Bc7 B3e5 Bb8 Bef6 Bbg3 Be5 Bf4 Bc7+
Q3N3/1N2RQ1K/1nq1bN1n/r1B2B1B/prp3qb/2n2q1q/nP1pk2R/8 b - - 0 1 illegal: No proof kernel
3Nn3/QR6/1Rp2bpk/2n1P1r1/q2Qr1b1/rQ6/qB1q1pK1/1Nq2rBB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 e4 Kf7 a4 Kg6 h4 b5 d4 g3+ Kf3 c6 h5+ Kh6 d5 g2 e5 c3 d6 g6 a5 c2 d7 b3 a6 b2 a7 b4 Nc3 b1Q Kf2 b3 Qg4 b2 Qd1 Qa2 Nh3 b1Q Qd4 g1R Bb2 c1Q Bg2 f3 Ng5 f4 Ne6 Qe4 Nb1 Bg7 Rh3 Rh7 Bh1 Rg5 Rh2 Qda5 d8B Bf6 Bb6 Na6 Nd8 Nc5 Rh3 Bg4 Rh4 Rb8 a8Q Ra7 Rh3 Ra6 Qa7 Qac3 Rh2 Ra3 Rh4 Q1d2+ Kf1 f2 Rh3 Qb4 Rb3 Qec2 Kg2 Qa4 Rb5 Qcc1 Rb4 Nd7 Bc5 Ra8 Rb6 Re3 Rb7 Re4 Bb6 Qe6 Ra3 Qa2 Rb3 Nc5 Rb5 Bg7 Rb4 Nf6 Rb3 Ne8 Rb4 Nd7 Bc5 Bf6 R4b6 Kh7 h6 f3+ Kh2 f1R+ Kg3 Kh8 h7 Kg7 Qd6 Kh6 Bg1 f2 Kg2 Nc5 Qd4 Rf5 h8Q+ Kg5 Qg8 Kh6 Qb8 Rg5 Qgd5 Qad1 Qe6 Ra3 Qa7 Qa4 Qb3
B1r2BK1/4r2r/RPqB4/2QQ3n/1N2p3/b1qn1qp1/N3qNp1/kbrR4 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 f4 Ke6 c4 a5 h4 d5 b4 g5 b5 a3 f5+ Ke5 b6 a2 h5 g3 h6 g4 c5 a4 f6 g2 c6 a3 c7 g3 f7 d3+ Ke3 d4+ Kd2 e3+ Ke1 e2 Kd2 e1R h7 Qd6 Rh6 Qc6 Rh1 Bf5 c8N Nd7 Qh5 Ngf6 Qf3 Nh5 Bb2 Nc5 Na7 Rc8 Nc3 e6 Rd1 a1Q Nh3 a2 Ba3 Re4 Be2 Qc1+ Ke1 a1R Na2 Kd5 Qe3 Kc4 Nf2 Kb3 Bf3 e5 Rf1 Qc4 Kd2 Rc1 Qg5 Be7 f8B Bg6 Bb4 Kb2 Ba3+ Ka1 Qe3 Rg8 h8Q Rg7 Qg8 Rh7 Qd5 Bd6 Nb4 Qb3 Nb5 Be7 Nc3 Bd6 Ke1 d2+ Ke2 Nd3 Nca2 Qbc3 Rg1 Rf4 Rge1 Rff7 Be4 Bf5 Kf3 Re7 Rf1 Bg6 Kg4 Bf5+ Kg5 Bc5 Rde1 d1Q Bf3 Qe2 Rd1 Nb2 Be4 d3 Rg1 Bd6 Qec5 d2 Bf3 Bc2 Be4 Bb1 Kg6 Nd3 Rh1 Rb7 Rh4 Rhe7 Rf4 Qf3 Rf7 Rbd7 Kh7 Qe2 Kg8 Ra7 Rf1 d1Q Rf5 Qdb3 Rd1 Rh7 Rf4 Rae7 Rg4 Qbb2 Rg5 Qf3 Rg7 Qbe2 Rf7 Ree8 Ra7 Ree7 Ra6 Ref7 Bg6 Re7 Bf7 e4 Be8 Qa4 Bc6 Qb5 Bb7 Qc6 Ba8 Be5 Qb5 Qce1 Qbc4 Bb2 Qc3 Qa4 Nc6 Qc4 Qd4 Qec3 Bd6 Ba3 Ncb4 Qc6 Q4c5
1n3Qr1/1b5R/BP1BK2p/1rqBbN2/1nq2Np1/6r1/3npr2/1RQ1nR1k b - - 0 1 illegal: No possible last move
8/RQ3B1p/b4kpb/q6Q/1bQB1qnK/2nNPN1b/1qqrpN2/4r1R1 b - - 0 1 illegal: No proof kernel
K5nb/4p2r/b3B1Q1/p1qnk2N/2R1Pb2/N5Bb/Qp1q1r1R/B1q1R2q b - - 0 1 illegal: No proof kernel
Q1b1nr2/R2p1N2/2B3k1/1N1r4/pq2BR2/Bn2q2P/p1brQb1K/3R1r1b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 e4 a3 Kf2 Ba6 Kg2 g5 c4 f5 b4 Kf7 c5 g3 e5 d3 h3 d2 c6 a2 b5 g4 e6+ Kg6 e7 Nf6 e8R Qb6 c7 Rh5 c8B Bc5 Re4 Nc6 Nc3 Nd4 Nge2 f3+ Kg1 f2+ Kg2 f4 Qc2 d1B Rg1 f3+ Kh1 g2+ Kh2 Rd5 Rh1 g1R Qd3 Bc2 Bg2 f1B Rb1 f2 Bb7 Rf8 Ba3 Ne8 Bc6 Bc8 Nc1 a5 Qe2 a4 Rf4 Qb8 Bf3 Bg2 b6 Rd1 b7 Rd2 Rd1 f1R Nd3 Bh1 Bg2 Qd6 b8Q Qe7 Rb4 Nb3 Qa8 Ba7 Rb7 Qb4 Nb5 Be3 Kg3 Bd4 Ra7 Bc5 Kh4 g3 Bf3 g2 Kg3 g1Q+ Bg2 Qf2+ Kh2 Qfd4 Bf3 Qe4 Bg2 Bf2 Ne5+ Kh6 Bf3 Qe3 Nf7+ Kg6 Be4+
1NK4B/3p4/p3bQQB/1RB1bb2/Pn5r/1q1R1Nn1/1k1prrq1/r2N2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 d5 gxf4 g5 e6 Bh3 exd5 Bf5 d4 Bg4 hxg4 Kf2 Ke7 b4 Kd6 e4 Ke5 h4 c5 a4 f5 b5 d3 h5 Kd4 h6 c3 h7 a6 e5 g3+ Kf3 g2 b6 d2 b7 c2 e6 c4 g6 c3 e7 Qb6 e8Q Bg7 Bb2 c1R Nh3 g1B Qee1 Be5 g7 Nc6 b8B Nb4 Na3 Nf6 g8N Ne4 Qh4 Ng3 Qc2 Re1 Nc4 Re2 Qf6 Qe6 Ne3 Qb3 Ng5 Bb7+ Ne4 Bd5 Bd6 Re8 Ra3 Rf8 Ne7 Be6 Nd1 Kc4 Qb1 c2+ Bc3 c1R Rh5 Rf7 Ng5 Rff8 Qc2 Ra1 Bc5 Rf7 Nc6 Rff8 Nb8 Rf7 Bf2 Rff8 Kg2 f3+ Kh3 f4+ Kh4 Bf5 Bc5 f2 Nf3 f1B Kg5 B1h3 Qb1 Be6 Qbg6 Bhf5 B3d4 Kd3 Bf2 Kc2 Bfe3 Qb2 Rd3 Qb3 Nh2 f3 Bf4 f2 Nf3 Rhg8 h8B f1Q Bfe3 Rg7 Bf4 Qg2 Bfe3 Bb2 Kf4 Rh7 Rg5 Bc1 Ke5 Bb2+ Kd6 Rh4 Kc7 Rf7 Rh5 Be5+ Kc8 Kb1 Bh6 Kc1 Nc3 Kb2 Rg5 Re7 Rh5 Rf2 Nd1+ Kb1 Qff7 Bd6 Bb2 Bc4 Bg5 Bg4 Bh8 Ree2 Qff6 Bce6 Bh6 Bh3 Rhd5 Be5 Bce3 Bhf5 Rb5 Kc1 Bc5 Kb1 Nc3+ Kb2 Nd1+
Q1B5/BP1pr2n/1rkn2b1/r2ppB2/qR1b1R1N/1q6/2N1r3/1n1Q1nQK b - - 0 1 legal: proof: e4 b5 h4 f5 a4 fxe4 d4 bxa4 h5 c6 d5 cxd5 h6 gxh6 Ra3 h5 Ra1 h4 c4 e5 b4 a5 f4 h5 Kf2 a3 g4 e3+ Kg2 h3+ Kh2 h4 g5 a2 f5 e2 b5 e1R b6 a4 g6 a3 g7 Rh6 c5 Ba6 f6 Bd3 b7 Ra5 c6 Qb6 c7 Na6 c8B Bg6 f7+ Kd8 Ne2 Kc7 Nf4 Re2+ Ng2 Bc5 f8Q Nf6 g8Q Kc6 Bg5 Bd4 Qe8 Qb3 Nd2 Nh7 Qe1 Nc7 Qef8 Ne8 Rd1 a1Q Qff2 a2 Rb1 Nd6 Rb2 Qad1 Nc4 a1N Na3 Nc2 Be3 Qa4 Qf3 Qb1 Rb4 Qbb3 Nb1 Na3 Qd1 Ba7 Rg1 Bd4 Kh1 h2 Qf4 Rb2 Bd3 Re2 Nc3 Nb1 Na2 Be8 Qf3 Re6 Qgg3 Bg6 Bf5 Re7 Rf1 Qba3 Qb3 Rc2 Rb5 Bc3 Bh6 Ra8 Qd1 Qe4 Qa4 Re2 Qa7 Qea4 Qb8 Rd2 Be3 Ra5 Ba7 Bd4 Rf4 Rb2 Qa8 Rb4 Ne1 Q3b3 Kg2 h1N Qh3 Ng3 Nf3 Nf1 Qg3 h3+ Kh1 h2 Kg2 h1R Nh4 Rh3 Qh2 Qb2+ Kh1 Re3 Qg2 Rbb3 Qg1 Re2 Nb4+ Kc7 Nd3 Kc6 Ne1 Qc3 Nc2 Rb2 Rb3 Qe3 Rd3 Rb6 Rb3 Qg3 Rb5 Qgb3 Rb4
qr1B4/pN2n1K1/R2B4/2qRp2B/1R1Pq1Qq/2Nn1bnr/1np5/Q1b1k3 b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 f4 e5+ Kh5 c5 b4 a3 g4 e3 b5 c3 b6 e2 g5 Kd3 f5 a2 g6 c2 b7 c4 g7 c3 f6 h3 f7 h2 Bb2 c1Q Nh3 Nd7 b8Q Bb7 Qc8 Nc5 Qa4 Ne7 Kh6 Bf3 Qe6 Rb8 Rg1 h1N Ba3 Ng3 Qag4 Na4 Ng5 Nb2 Bd6 c2 Qd7 Qe1 Ne4 Qc7 Bh3 Qc5 Nbc3 Qef2 Qe8 e1N Qa4 Qfd4 Rd1 a1Q Qa3 Qb1 Qa1 Qdd5 Bc7 Qa8 Nd6 Qa2 Bd8 Q2d5 Nb7 Qe4 Na4 Ke2 Nc3+ Kf2 d4 Ned3 Rb1 Na4 Rb4 Nab2 Kg5 h5 Kf6 h4 g8R Bh6 f8B Bg5+ Kg7 Bc1 Bf1 h3 Be2 h2 Bd1 Ng6 Bd6 h1Q Rf8 Rh5 Rf7 Rh4 Rd7 Rh3 Rg2+ Ke1 Rf2 Be2 Rf6 Ne7 B6c7 Ng8 Qf3 Rh6 Rd5 Ne7 Ra6 Qh5 Bd6 Qg5+ Kf8 Rh3 Qf5 Qgh4 Kg7 Bf3 Qc8 Bh1 Bh5 Bf3 Qg4
2r2q1q/1Q2RnB1/2qn2K1/b1Nnr3/4p1N1/kRB1p1p1/2Pp2QR/3b1B1r b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 b5 h4 g5 f4 e5 a4 Ke7 h5 Kd6 a5 Kc5 a6 d5 f5 e3 Kd3 g3 a7 b3 h6 Kb4 f6 e4+ Ke2 g2 h7 g4 f7 g3 Rh5 b2 Ra2 d3+ Ke1 d2+ Ke2 d4 Rh1 Na6 Ra5 Nh6 Nc3 b1R Nh3 g1Q Ng5 Nc5 Bg2 Bg4+ Nf3 Nb7 Na4 Rc8 a8Q Nd6 Nc5 Qh2 Ra3 d3+ Kf1 Qb6 Qb7 Qc6 Qe2 d1N Qf2 d2 Ne5 Nc3 Bh3 Bg7 f8R Nd5 Qg2 Nhf7 Re8 Bd1 Re7 Rhe8 Ng4 Bc3 h8B Ra1 Bb2 Rc1 Rd7 Re5 Re7 Rb1 Bg7 Ra1 Qf3 Rc1 Bg2 Qh8 Rh2 Ra1 Ne6 Rc1 Rb3+ Ka4 Qf2 Ba5 Bc3 b4 Kg1 Rb1 Bf1 Ra1 Kg2 Rc1 Rb1 b3 Nc5+ Ka3 Qe2 Qf8 Kh3 b2 Kh4 Nf5+ Kh5 N5d6+ Kg6 Qh8 Qg2 Qf8 Bc4 Qh8 Ba2 Qf8 Ra1 b1Q Bc4+ Qa2 Rb1 Qb2 Ba6 Bf3 Bh8 Rh5 Bcd4 Rh1 Bf1 Bd1 Bhf6 Qb4 Ba1 Qd4 Bc3 Rf5 Bg5 Qe5 Bh6 Qeh8 Bhg7 Re5 Rb3+
4R3/NNrQ1B2/Qrn3K1/3P4/3qnpp1/Q3b1bp/2kp2rB/n1Bbq1R1 b - - 0 1 illegal: No proof kernel
q4NR1/n4Rn1/2rBN1p1/b1BK4/2r1nqPq/1QRp4/bQp1p2r/1B5k b - - 0 1 illegal: No proof kernel
2BN1n2/2rbq3/1nQ2pP1/3N3n/Q2K1N2/1p1pBk2/r2bpR1R/rb2R1q1 b - - 0 1 illegal: No proof kernel
2nn3k/R2Qq2B/r1pbpNb1/1b1q4/1p1p1qQB/PnB4N/1K4R1/5r1N b - - 0 1 illegal: No proof kernel
r2b1r2/R1Q2N1N/2p1p1R1/1p3bB1/3KQ1qB/1PNnrb2/Qq1n1p1n/k7 b - - 0 1 illegal: No possible last move
R1n2q1r/Bq3k1p/2B5/Kn3b1p/N2b4/Q1NP3B/ppr4Q/n2rRbN1 b - - 0 1 illegal: No proof kernel
RR3n2/Q1n2qpb/r4r1b/1pp1B1kB/3Qn1pq/3Q1R2/NP3Nbq/1K6 b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 d5 a4 dxc4 a5 h5 a6 hxg4 Na3 Nxa6 Nb1 Nb4 Qc2 Na2 Qb3 Nf6 Qd1 Ng8 d4 Ke7 Kd2 Kf6 Kc2 c5 h4 a5 e4 b5 d5 f3 d6 f2 h5 c3 d7 a4 h6 a3 h7 Ra6 Qe2 Be7 Qe1 Nb4+ Kd1 c2+ Kd2 a2 e5+ Kg5 e6 f5 Bh3 f1B Nc3 f4 Qe4 f3 Qa8 f2 Qa7 Nf6 Bg2 Rf8 h8Q Nh7 Be4 Rf6 Bg6 Bg2 Bh5 f1Q Rh3 Nf8 Qh7 Nd5 Qd3 Nc7 Rf3 Bb7 Qd4 Be4 Qd3 Bd6 e7 Bh7 e8R Qe7 d8Q Bf4+ Re3 Qf3 Q8d4 Qd5 Rb8 Qdf7 Nd1 Qe5 Ne2 Qee7 Kc3 Qe5 Bd2 c1N Kc2 Nb3 Bc3 Nd2 Nf2 Ne4 Rf3 Bd2 Nc1 Qh2 Rb1 a1Q Na2 Bf4 Rh1 Qe1 Rf1 Bc1 Kb1 Qh4 Rh1 Qg1 Ra8 Qgh2 Re1 Nd6 Ree8 Ne4 Reb8 Bd2 Rh3 Kf5 Rg3 Bh6 Rf3+ Kg5 Qd5+ Bf5 Be5 Bh7 Q5d4
1Q6/K1R1bp2/2R1Q2P/nqprN3/pq1rrp1k/3bBQ2/1NBn4/2R2nq1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 h4 Kf6 d4 g5 e4 a5 b4 c5 d5 a3 d6 c3 h5 a4 b5 g3+ Kf3 g2 b6 g4+ Ke2 Kg5 Kd3 a2 Kc4 c2 Kb5 g3 h6 Ba6+ Ka5 Qe8 d7 Nf6 d8R Nh5 b7 Nc6+ Kb6 Be7 b8Q Na5 e5 Bd3 Be3 c1Q e6 Qc4 Rd7 Rf8 Na3 Qb4+ Nb5 Rh8 Rb1 a1N Rc7 N1b3 Qf3 Nd2 Be2 Qd7 Bd1 Rd8 Bc2 Qe8 Rc6 Rd4 Re1 Ra7 Rb1 Rc7 Ka6 Rc8 Ka7 Rcd8 Na3 R8d5 Nc4 Qd7+ Rc7 Qdb5 Nb2 Re4 Qf2 Kg4 Nf3 g1Q Ne5+ Kg5 Qf3 g2 Rc1 Ng3 Rh3 Ngf1 Rg3+ Kh4 Rg6 Qf2 Rf6 g1R Rg6 Rdd4 Rf6 Rg5 Rg6 Bf6 e7 Qg1 e8Q Be7 Rgc6 Rh5 Qec8 Rg5 Qe6 Rh5 Ng4 Rhd5 Ne5
qr2b1q1/3rQp1R/1R1bp2n/n1PB2R1/bpNK3B/2Np2qk/7Q/4Qr2 b - - 0 1 illegal: No proof kernel
6Qq/1K2Np2/2NpQ3/1QR2rp1/q2rn1Bk/B2b2p1/P2b1n2/BrRb3q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kf6 h4 b5 e4 g3+ Kf3 d6 h5 Kg5 c5 d3 h6 d2 c6 b3 c7 b4 e5 b2 Ke4 f3 Kd5 f2 e6 b3 h7 Nf6+ Kd4 Na6 e7 Bf5 c8Q Bd3 e8Q Ng4 Kd5 Nc5 Kc6 Ra5 Qde1 Ne4 Bh3 f1Q Ne2 Qf4 Nd4 d1B Kb7 Rf5 Nc3 b1R Nc6 b2 Nd5 Ngf2 Nde7 Kh4 Qed7 Rg8 h8B g6 Qa5 Bh6 Qb5 Qg4 Bd4 Bd2 Qe6 g5 Bg7 Rh8 Rf1 Qf4 Bg4 Rh5 Qa8 Qh8 Qg8 Rh6 Re1 Rhf6 Re3 Rd5 Re2 Rff5 Bc3 Rd4 Re1 Nf6 Re5 N6e4 Rc5 Qfe5 Kc7 Qd5 Kb7 Qb3 Bb4 Qa4 Ba3 Ba5 Bf4 Bd2 Be5 Rc1 Qa5 b1Q+ Qb3 B1e2 Qc8 Rb4+ Qb5 Rf1 Bc3 Rd4 Qbe6 Rg1 Bcb2 Qf1 Rb1 Qg2 Rf1 Qh1 Qg8 Bf3 Rb1 Rc1 Ba1 Bd1 Rb2 Rb1 Rbc2 Qb4 R2c3 Qa4 Rc1
R5RN/1bk2pn1/1BpR2B1/2q3r1/1n1P4/3pNqbq/3r1pQn/1KN3rQ b - - 0 1 illegal: No proof kernel
1K3RrQ/2p2rB1/3rnqn1/N2n1Bp1/1P1kN3/4b1N1/1Q3p1p/B1b2bqR b - - 0 1 illegal: No proof kernel
KR6/2p1r1Np/1p1qB3/b2NnQRP/p3br1r/2Rq4/nN2B1k1/Q3nq2 b - - 0 1 illegal: No proof kernel
B5RQ/qP2N2N/1R4KR/1q2k2r/1r1br1bp/4Qp1p/1p1nnB2/1b2nN2 b - - 0 1 illegal: No proof kernel
1K1RB1k1/n7/QR3QNr/3bNpnP/1BQpp3/3B1n2/1bpq4/1b2n1rn b - - 0 1 illegal: No proof kernel
Q1Q2Q2/B4R2/4b1KN/qrp1pRP1/p1n1b2N/R3bB2/1b2b2p/1kn2nr1 b - - 0 1 illegal: No proof kernel
1nr1BBNn/b3N3/kr3R1P/b1p4q/b5Q1/Kp1Q4/1Q2ppN1/R1b3nb b - - 0 1 illegal: No proof kernel
2k2Q1B/3BRbB1/K2bNpn1/n7/3qbprr/4Q1p1/prP1RR2/5bNb b - - 0 1 illegal: No proof kernel
1Kb2bQ1/2R3NB/5pn1/pb1bRq2/r7/1Pb1pRQN/rn1r1p2/B1B4k b - - 0 1 illegal: No proof kernel
2bN4/3k2rP/2pB1nb1/bpN2B1B/1q2Q3/1R1ppnNr/1Kb4R/1Q2n2b b - - 0 1 illegal: No proof kernel
2N2Nrk/2B3Np/n2KppRP/1RQ2Rn1/1Qbb3n/1q1np1r1/8/nB3r2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Kf2 c5 h4 b5 a4 f6 g4 Kf7 d4 Kg7 d5 c2 h5 e3+ Kf3 c4 Ke4 c3 a5 b4 g5 b3 d6 b2 Kd5 Nd7 h6+ Kf7 a6 Nb8 d7 Qe8 a7 Ba6 Na3 b1N Nf3 Nd2 Nh4 Nf3 Qe1 Bc4+ Kc5 Qd8 Nf5 Na6+ Kc6 Qb8 Bd3 Qb3 Rf1 Rd8 a8Q Re8 Bb2 c1N Rb1 c2 Qb4 Rd8 Be4 Nd3 Qa7 c1N Nb5 Rb8 Ng7 e6 d8R+ Ne7+ Kd6 Kg8 g6 Ng5 Be5 f3 Qac5 f2 Na7 Rb5 Nc8 Ra5 Rg1 f1R Rg4 Ra4 Rf4 Ra2 Rf5 Rg2 Rb2 Rg3 Bf4 Ne1 Bb1 Nc2 Rd7 Nd3 Rb7 Nc1 Rb5 Na1 Rg2 Nd3 Nh5 Ne5 g7 Nd3 Rg1 Kf7 g8N Ng6+ Nge7 Nh4 Ng7 Rg8 Be5 Nhf3 Kc6 Nh4 Ng6 Bd6 Bf4 Be5 Nf8 Bc3 Bc7 Bd4 Nd7 Rd8 Kd6 Kg8 Rg2 Kh8 Rg1 Rg8 Rg2 Rh3 Rg4 Rg3 Nf8 Nh3 Rg6 Ng5 Qa5 Nhf3 Qc3 Nh4 Q3b4
5Nrn/nQp1RrB1/1k2N2n/1b1p2B1/2nPbRp1/1qp1n3/3Q1K2/b2N2B1 b - - 0 1 legal: proof: f4 b5 g4 e5 c4 exf4 b4 h5 Bh3 hxg4 Bg2 a6 Bc6 bxc4 b5 Nh6 b6 Ng8 Bb5 axb5 h4 d5 a4 Kd7 e4 Kc6 e5 g5 e6 f5 h5 g3 a5 g2 a6 f3 h6 f4 d3 f2+ Ke2 f1N h7 g4 b7 f3+ Kf2 b4 e7 b3 e8N b2 a7 Bf5 Ra3 Be4 Qd2 Kb6 Nh3 g1N Nd6 Bg7 Ra4 Ne3 Nb5 Nh6 Ng5 Ne2 Rd1 Nc6 Nd4 Qb8 Nc3 b1N Re1 Nf4 Nde6 Ng6 Nd1 Rf8 h8B Ba1 Nh7 c3 Bg7 Rf7 Nhf8 Nh8 Rd4 Na3 Re2 Bg6 Rf4 Nac4 Re1 Be4 Re2 Qe8 Re1 Rb8 a8Q Na7 Re2 Rd8 b8B Qa4 Re1 Qb3 Qb7+ Ka5 Ba3 Rc8 Be7 Re8 Bg5 Rd8 Kg3 f2 Re2 f1B Kf2 Nc6 Ba7 Rc8 Bad4 Na7 Bde5 Re8 d4 Rb8 Rf3 Ra8 Bh2 Re8 Bg1 Ra8 Ng6 Rg8 Re1 Be2 Ngf8 Bf1 Rf4 Bfd3 Qc8 Kb5 Re2 Kb6 Qb7+ Ka5 Bh2 Bg6 B5f6 Nb6 Be5 Nf1 Bef6 Bb5 Bg1 Nc4 Bg5 Bb1 Re5 Nfe3 Nd8 Bc2 Re7 Be4 Qa8 Ka6 Nde6 Kb6 Qb7+
5bn1/nrp1B2K/b1pRr1Nn/r2p1B1Q/1qrB4/1Q2NQpk/1P5r/R7 b - - 0 1 illegal: No possible last move
nr1q3R/N1kb3r/2p2bn1/1pB5/3RR3/1P1npQQ1/p1K2b1N/2BQbr2 b - - 0 1 illegal: No proof kernel
Rb4BB/Qr1b1Np1/2kN1r1p/nn1Bb1pp/3rQN2/1P4q1/K7/2R1b1n1 b - - 0 1 illegal: No possible last move
k1n5/p3b3/3n1B1Q/1n1B2p1/1pNPbr1p/b3n2r/3QNR2/R2rqQKB b - - 0 1 illegal: No proof kernel
1n1r1N1K/k5B1/1bP1QN1n/p5p1/NnR4n/pq3nQ1/Q1r1bpR1/q2B4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 g5 h4 Nc6 b4 a5 e4 f5 c4 d5 e5 Kd7 c5 Kc7 e6 Kb8 b5 d3 h5 d2 b6 d4 b7 g3+ Kf3 d3 e7 g2 e8Q a3 h6 Ka7 b8N Qb6 h7 Ba6 Ra2 Qb3 Qc2 d1N Nd7 d2+ Nc3 Ne3 Ne4 d1N Bb2 Rd8 Rh4 Nf2 Ne2 Nb8 c6 Bc5 Qe6 Nd3 N2c3 Bb6 Nf8 Nb4 Be2 g1Q Na4 Qa1 Bd1 Ng2+ Bc3 Bb5 Qf2 Bc4 Qg3 Rd2 Nd7 Nh6 Rb2 Rg8 h8Q Rd8 Nf8 Bd3 Rc2 Re2 Bd4 Rd2 Rc4 Rc2 Rh2 Bf1+ Be3 Bd3 Qb2 Bf1 Qa2 Be2+ Kf2 f3 Bd4 Nh4 Rg2 Bd3+ Ke3 Be2+ Nec3 f4+ Ke4 f2 Ke5 f1N Kf6 f3 Kg7 f2 Nd5 Nd2 Kh8 Ndf3 Bg7 Re8 Nf6 Rc8 Nh7 Rd8 Nf6
r2q1Rb1/Q3R1pN/5b2/N5Bq/rNb1p3/QQ3bKB/2P1p2p/1kbn2n1 b - - 0 1 illegal: No proof kernel
5R2/2QkBp1q/q3pK1n/bp3b2/B1Pr1r2/NB2n2b/1b1N1pbQ/5RR1 b - - 0 1 illegal: No proof kernel
2NkQR2/BKnnp1P1/Rb1p4/NB2p3/r2r3b/4b1q1/1Qb2Bp1/b2qR3 b - - 0 1 illegal: No possible last move
1r1q1B1q/1rpr1Q1Q/bb1rR2p/pQ4Rn/p3Rr2/kn5P/N2B2N1/1K6 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 f5 b5 f6 bxa4 e3 g4 Be2 exf6 Ra2 f5 Ra1 f4 Bf3 gxf3 d4 Kd7 Kd2 Kd6 Kc2 a5 g4 f5 b4 h6 h3 f2 d5 f1Q e4 f3 e5+ Kd7 b5 f2 e6+ Kd6 b6 Kc5 e7 Kb4 e8Q c3 g5 f4 b7 f3 d6 Rh7 d7 Bc5 g6 Bb6 g7 Nf6 g8R Na6 b8Q Nc5 Qf7 Nh5 Rg5 Ba6 Bd2 Nb3 Ne2 Ra7 Qe1 Rb7 Nf4 Qb5 Qee8 f1R Qh8 f2 Ng2 Rd1 Re1 f1R Re6 Rf4 Ra3 Rg7 Qh7 Qe5 Ra1 Qd4 Ra3 Qh8 d8B Qd6 Bf6 Qdd8 Ra2 Rg8 Bg7 Re8 Bf8+ Re7 Be3 Rd6 Bd2 Red7 Ra1 Nc5 Kc1 Kb3 Ra2 c2 Nc3 Kb4 Kb2 c1R Ra1 Rg1 Rae1 Nb3 Kb1 Ka3 Na2 Rgf1 Qc8 Rb8 Qb7 Rb4 Qd5 Rff4 R1e5 Ba7 Qdd3 R4b7 Re4 Bb6 Qb5
1k4K1/p3r1QB/1Q1R1N1q/PR3b1N/3npp1r/B1Q2p2/5rqb/2R1r1rn b - - 0 1 illegal: No possible last move
3B4/1r4q1/1rB3rB/1RK1b2b/1p1RpbnP/p7/n1bp3Q/qkNNQR2 b - - 0 1 illegal: No proof kernel
n4R2/1K3N1b/n4bqr/5Np1/rn4QP/1pqp3B/1b1RpNnQ/Q3k1B1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 c4 Ke5 a4 d5 a5 g5 a6 b5 c5 g3 f3 g2 a7 b3 c6 d3+ Ke3 d2 c7 b2 Qb3 d1N+ Kd2 Kd4 f4 e5 f5 e3+ Kc2 e4 f6 b4 f7 e2 Ra5 e1N+ Kd2 e3+ Ke2 Nf2 Ra3 Nfd3 Qd1 b3 Ra2 Ba3 f8Q Rh6 Nc3 b1Q Nh3 g1B Qd6 Bb2 Ne4 Nf6 Qh2 Qh8 Ng3 Kc3 Nf2 d4 Bh3 Na6 Nf5 Ng2 Kf3 Nd5 Ke4 Nb6 Qg4 e2 Be3 Be6 c8N Bg8 Ncd6 Bh7 Nf7 Ndb4+ Nd3 Bf2 Rf1 Bg3 Rf3 Be5 Bg1 Bf6 Rf4 Kc2 Nf2 Qg7 Rf3 d3 Rf4 Kd2 Rf3 Qc2 Rf4 Rh8 a8Q Qg6 Qa7 Na8 Rf3 Nc6 Kd5 Ke1 Kd6 Rb8 Kd7 Rb4 Kc8 Ra4 Kb7 Ncb4 Qad4 Ba3 Qa1+ Qc1 Rd2 Bab2 Re3 Kf1 Re8 Ke1 Qa3 Qc5 Rf8 Qc3 Qa1+
R2nbn2/N4k1B/5qpK/ppp1R3/1rb1NP2/q1B1q1b1/2Qb1Q1B/r4R2 b - - 0 1 illegal: No proof kernel
4r2q/1k2q1nN/1b1bp3/NR1pQ3/3nBr2/1RN1q1RK/pBp2PQ1/1b5b b - - 0 1 illegal: No proof kernel
R2B3N/3nR1n1/Q1pnk3/1qqb4/2rbb1P1/2Qp1BK1/pr1b1pR1/4N1Q1 b - - 0 1 illegal: No proof kernel
1N3B2/bK4n1/p1rR2BP/4Q1p1/b1QbpqnR/1p3n2/1n6/RNQkrq2 b - - 0 1 illegal: No proof kernel
1kNN4/3rqr1P/1ppb2Qp/3B3b/1p2Qq2/RKB2nb1/5B1R/1b3rRn b - - 0 1 illegal: No proof kernel
Rn4kq/1KbB2P1/N1pNp3/r1rR1b2/2b1Q2n/1Q2Bbr1/pp6/1N4qB b - - 0 1 illegal: No proof kernel
Q1r1rrBb/N2Q2p1/K4B2/Rp2P3/nq6/4nn1p/pRb3Qk/2rRq2N b - - 0 1 illegal: Other
1QK2Q1N/R5p1/p7/pr2n2p/1qbP4/1rb1q2n/3q1QRn/1B1kNRBn b - - 0 1 illegal: No proof kernel
1K5b/1Q1BRpR1/k1r1R3/Nn1qp1b1/B1n2P2/1q1p1bb1/p5Nr/Bq1Q4 b - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 b5 d4 bxa4 d5 c6 Kd2 cxd5 Ke2 dxe4 Ke1 e3 Ke2 d5 Kf3 Kd7 Kf4 Kc6 Ke5 Kb6 g4 h5 c4 a5 b4 d4 f4 a3 g5 h3 b5 h4 g6 e2 g7 e1B Be2 h2 Qc2 h3 Bd1 a4 Qb2 a2 Nf3 a3 Qb3 d3 Nbd2 Bg3 Re1 h1Q Bb2 h2 Nh4 Nf6 g8R Nd5 Ng2 Bb7 Rg7 Na6 c5+ Ka5 c6 Ne3 c7 Qb8 b6 Bf3 Rc1 a1B b7 a2 Rc6 e6 Qc2 Be7 Nb3+ Kb5 Bd4 Bg5 Kd6 Nc4+ Kd7 Rh3 c8B Nc7 Na5 Ra6 Qe2 Rb6 Ba4+ Ka6 Qd1 Nb5 Rd6 Rc6 Re5 Qa8 b8Q+ Qb7+ Qc7 Qf1 Re2 h1Q Bf6 Bd4 Kd8 Qe1 Bd7 Rh2 Re4 Qb6 Kc8 Qb4 Be5 Qb3 Re1 Qc5 Kb8 Qd5 Bf6 Bc5 Ba1 Bd4 Re4 Bdf6 Rd4 e5 Re6 Qc5 Rdd6 Qd5 Re7 Qf1 Rde6 Qe1 Rh7 Bh8 Rg7 Qeb4 Bc3 Qb1 Ba1 Q4b3 Qb7+
5bQ1/2NnNp2/1PK1B3/kr1p1BB1/5p2/3bNpR1/2RbQrb1/2qnqr2 b - - 0 1 illegal: No proof kernel
q1b1N2q/B3Pp2/3Q1bnq/4p1R1/1rp2k2/n5Rr/rp1BKNQ1/3B2rN b - - 0 1 illegal: No proof kernel
nR1r1BR1/n2pK2b/5Q2/1b1kN1B1/B3Qp2/Pp2q1p1/1bQ1qrNn/5b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 b5 h4 g5 a3 f5 h5 g3+ Kf3 d3 h6 d2 h7 b3 Nh3 b2 Rg1 g4+ Kg2 b4 Qc2 d1Q Nd2 b1B Nf3 Nc6 Ne5 Qg5 c5+ Ke6 Qb2 Nf6 Bb5 Ba6 Ba4 Na7 c6 Bg7 c7 Nd5 c8Q Nb6 Qcc2 Rhd8 h8B Bb5 Bd2 Bf6 Bg7 b3 Bf8 Rab8 Qd4 Na8 Be3 Ba2 Rc1 Qd3 Rce1 Bb1 Bc1 Qd1 Re3 Qe1 Rc3 Rb6 Rc8 Qe2+ Qf2 Ra6 Rb8 Ra5 Nc6 Qh6 e5 Kd5 e6 Bb2 e7 Qg5 e8Q f3+ Kh1 g2+ Kh2 Qgd2 Kg3 Qde3 Kh4 Ra6 Ne5 Rf6 Qf1 f2 Qe7 Rf7 Qe1 f1B Qf6 Qd4 Bg5 Qde3 Rh1 g1N Nf4+ Kd4 Rh2 g3 Ng2 Nf3+ Kh5 Kd5 Kg6 f4 Rh4 Rh7 Rg4 Nh2 Qb4 Re7 Qe1 Re6 Kf7 Rd6 Ke7 Rc6 Qcc1 Bh7 Qc2 Rc3 Bh4 Rd3 Rg8 Rd2 Bg5 Qh5 Qh8 Rf2 Qf6 Qd1 Qb4 Qde2 Qbe4+
Nn2N1bn/3pq3/R2R3r/K1n1Bp1n/7R/k1QQ2p1/B1q2Ppb/rr3B2 b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 e4 Ke7 a4 Kd6 h4 Kc5 h5 Kb4 e5 f5 a5 b5 e6 g5 a6 c5 h6 c2 Kd2 c4 h7 d3 a7 g3 e7 g2 e8Q g4 Ra3 c3+ Ke3 d2 Kd3 Qe7 Ra5 Nf6 Rh6 Bb7 Bb2 Nh5 Nh3 Bd5 Nf4 Bg8 Ne6 c1N+ Kd4 c2 Nc3 Kb3 Ne4 b4 Nc7 Nd3 Nd6 Ne5 Kc5 Ng6 Kb6 Bg7 Ra6 Be5 Qf8 Bh2 Ka5 g3 Be5 Ka3 Qf6 c1N Nde8 b3 Qe2 d1Q Qd3 Qe2 Qc6 Qc2 Qcc3 Nf8 Rhd6 Ng6 Qf3 Nd3 Qe3 Bc4 Qed4 Nc5 Qdd3 Rf8 h8R Bg8 Rh6 Nh8 Rh7 Rf6 Rh6 Ng7 Rh4 Rh6 Rab6 Ka2 Kb4 b2 Rbc6 Nba6+ Kb5 Rd8 a8B Nh5 Rb6 Rb8 Ka5 Rb7 Rbc6 Nb8 Ra6 Rb3 Bb7 b1R Na8 Ra1 Bc6 Rb7 Ba4 Rbb1 Bb3+ Ka3 Ba2+
1r3Q2/bNrp1Rb1/2Nq2n1/1p1b1B1K/n1p5/b3pk1B/2P2NR1/qqB1Q3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f5 d6 fxe4 Bf4 exd6 Bh6 d5 Bc1 d4 Ke2 Kf7 h4 Kg6 a4 Kf5 f4 b5 a5 c5 h5 g5 a6 d3+ Kf2 d2 Kg3 b3 a7 b2 h6 c4 h7 Bg7 Qf3 d1Q Qf2 Bb7 Qf3 Qe7 Qc3 Bd5 Qe1 Qd6 Rh2 Ne7 Nh3 Rc8 h8N Na6 Nd2 b1Q Nf2 Ng6 Nf7 Rc7 Rg2 Rb8 a8B Nc5 Ne5 Na4 Nb3 Qd4 Nc6 Qa7 Kh2 g3+ Kh3 Qd4 Ra3 Q4e5 Nc5 Qea1 Rh2 g2 Nb7 g1B Rg2 Bh2 Rf3 Bg1 Kg3 g4 Bd3 Ne7 Kh4 g3 Kh5 Ng6 Nh1 Bc5 Nf2 Ba3 Bf1 Ke6 f5+ Kf6 Nb4 Ke5 f6 Kd4 f7 Ke5 f8Q Kd4 Rh2 g2 Rf7 g1B Bh3 Ke5 Rg2 Kd4 Nd1 Ke5 Bf5 Ba7 Nf2 e3 Nc6+ Kf4 Bh3+ Qdf6 Nb4 Bc6 Nc5 Be4 Bc6 Kf3 Nb7 Qf4 Bd5 Qff6 Bde6 Bd5 Bef5 Qd6 Nc6
N3R2q/BQrp1n2/p2Rp1q1/KP3p2/4n1qQ/5n1N/b2R2n1/2bBQ1rk b - - 0 1 illegal: No proof kernel
2N1bR2/3pbB1P/2p1rr2/BQk2b1N/nNB2Rq1/K6n/1r1p2p1/3qQ2b b - - 0 1 illegal: No proof kernel
1K2R2q/r1p4k/Q2Q4/R1P1qpB1/5n2/1pb1q1bQ/1Nbp1bnB/1r2N2N b - - 0 1 illegal: No proof kernel
R1r4Q/K1p2r2/1N2qBbp/NRqBQ3/k3Bbp1/Pbq5/n1R1n1p1/1q6 b - - 0 1 illegal: No possible last move, all moves rejected
R1knR2n/2p2pb1/NQr4n/1BN2qR1/p3q3/1b1Q1prq/1P5B/1KN3q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 d4 Kd7 Kd2 a5 Kc2 h5 e4 a3 g4 a4 d5 c3 e5 a2 g5 h3 g6 h4 g7 h2 d6 h3 Bd3 Nh6 g8R Bg7 Ne2 Nc6 Qg1 Qg5 Re8 Rg8 Na3 Nd8 Qb6 Ra6 Bc4 f3 Bf4 Qf5+ Bd3 Bb7 e6+ Kc8 e7 Bd5 Rag1 a1Q Rg5 Qg1 Nc1 Bb3+ Kb1 Qd4 Re1 h1Q Bh2 Qde4 Nc2 Qg1 Nb4 c2+ Ka1 Ra5 Na6 Rc5 Bb5 Rc6 Rf8 Be6 e8N Bb3 Bf4 h2 Nf6 h1Q Bh2 Qhg2 Nd7 Qg3 Ndc5 Qgh3 N1d3 c1N Kb1 Ne2 Re8 Nf4 Rd1 Qe7 Re1 Qfe6 Nc1 Ng6 Rf8 Qd5 Re6 Qd7 Ree8 Q7f5+ Bd3 Bf6 Nb8 Nh8 Rg6 Qde4 Re6 Bd4 Rg3 Rg4 Nba6 Bg7 Nb7 Kd7 Rg8 Rf4 Rg5 Rg4 Re5 Ne6 Ra8 Nd4 Ree8 Rc2 Be2 Rg3 Bb5+ Nc6 Rec8 Ke6 d7 Ke7 d8Q+ Ke6 Qf6+ Kd7 Re8 Rc3+ Bd3 Rc5 Qc3 Nd8 Qc2 Rc3 Bb5+ Rc6 Qd3+ Bd4 Ra7 Kc8 Nbc5 Bg7 Ra8#
BK3BQ1/QpNb2n1/4Rr2/2q1r1r1/ppPr4/1bb3k1/2n2NpQ/2q3NR b - - 0 1 illegal: No proof kernel
1rB1qR1Q/1p4Rn/3K2b1/pN2rrb1/2Pp4/B2Qr2N/1NnkbpQ1/q7 b - - 0 1 illegal: No proof kernel
1r2q1n1/pbn5/qb5n/1r2pB1b/pBQ2R1N/2BK2nk/2P2Q1p/1R1N1N2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 f4 Kg6 b4 Kf5 b5 Kg4 f5 h5 f6 d5 g3 e5 f7 e3 b6 d3+ Ke1+ e2 Kd2 d4 b7 h3 Bb2 h4 Ra2 h2 Nc3 h3 Ra3 Bc5 f8N Qe8 Ng6 Bb6 Qe1 Na6 b8B Bb7 Bd6 Nc7 Nd1 Rb8 Qf2 e1N Nh4 Ng2 Bc5 Ne3 Ngf3 Nf5 Bb4 Nfh6 B2c3 Rh7 Rg1 h1N Ra1 h2 Rb1 Rg7 Bg2 Rd7 Rf1 Rd5 Bh3+ Kh5 Ng1 Rb5 Bf5 Kg5 g4 Ng3 Ngf3+ Kf4 Kc1 d2+ Kb2 d3 g5 Ba6 g6 Bb7 Ng1+ Kg5 g7 Kh5 Ne2 Kg5 Ne3 d1B Kc1 d2+ Kb2 Nf6 g8Q+ Kh5 Qc4 Nfg8 Qe1 Kg5 Rf4 Kh5 Nf1 Kg5 Nc1 Bh5 Na2 d1Q Qf2 Qd6 Kc1 Bd4 Kd2 Qa6 Nc1 Bb6 Nd3 Nf7 Nb2 Nfh6 Be4 Qe6 Nd1 Qe8 Rf5+ Kg4 Kd3 Kh3 Rf4 Ba8 Bg6 Bb7 Bf5+
N3R3/pQKP2R1/b1B1bbpk/r3Q1q1/1pp1rq1B/r7/1nQ3N1/3R2nr b - - 0 1 illegal: No proof kernel
4bQ1R/N5p1/nKPp2N1/Q4Bk1/p1rQ1r1r/2r3p1/1BNR2r1/n1b1qr2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 a5 Kb5 f3 e4 g3 c4 d3 b4 a3 h4 a4 c5 f2 h5 a2 h6 d2 e5+ Kg5 e6 f5 e7 f4 e8Q f3 h7 Nh6 Ne2 Nf5 Rh3 Qe7 Rh1 Ne3 Qd8 Na6 Nec3 Nc2 Qa5 Qe1 Bd3 f1R Kb6 f2 b5 d6 Rh3 Bd7 Bb2 Rc8 Na3 Be7 Bf5 Be8 Rb1 Na1 Nc2 Rg1 c6 f1R Rh4 Rg2 Rh1 Rf8 h8N Rf4 Rh4 Rc4 Ng6 Rh8 Rh1 Rhh4 Rc1 Rhf4 Rh8 Rh4 Rb1 Bf6 Rc1 Rc7 Rb1 Rf7 Rc1 Be5 Rb1 Bf4 Qg4+ Kf6 Rd1 Be3+ Qd4+ Kg5 Nd5 Rf6 Nde7 Rf8 Nc8 Rc3 Bd7 Rff4 Na7 Rc4 Bf5 Rc3 Rb1 d1R Rc1 Rdd3 Rd1 Bc1 Rd2 Rc5 Kb7 Rdc3 b6 Nb4 Kc7 R5c4 b7 Na6+ Kb6 Nb3 b8Q a1R Qb7 Rb1 Qf7 Na1 Qf8 Rcf3 Qb4 Rf1 Ba3 Rb3 Bb2 Rbc3 Qa5
2N1Br2/3b2Np/2b4n/nQ5K/1Q1p1B1B/r1p2Rq1/1kp1bQP1/2n1bnR1 b - - 0 1 illegal: No possible last move
1Rq5/2p1b1p1/QQ1bnr2/n2bpB2/2rN3K/BbNn1B2/N1p3PR/2k2n2 b - - 0 1 illegal: No possible last move
4B1K1/1rb2n1R/p2QQ1p1/pr3p1r/1NP1R1B1/qb1NR3/1k1p1nbB/5n2 b - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 cxd4 a5 e5 a6 exf4 Nf3 bxa6 Ng1 a5 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 h4 f5 e4 d3 b4 g6 h5 d2 b5 g3 b6 a6 h6 g2 h7 f3 b7 f2 Be2 f1N Rh4 Ra7 Ra3 Nf6 Bg4 Qe7 Nh3 g1R Nc3 Nc6 Qe2 d1B Na2 Nd8 Re3 Nf7 Nf4 Qa3 b8Q+ Bd6 Nb4 Bc7 c3 Rb7 Nfd3+ Ke6 e5 d5+ Kd4 Bb3 c4 Ne4 Bd2 Rb5 Be1 Bb7 Bg3 Nf2 Bh2 Rh1 Qe1 Rg8 h8R Rg7 Qf8 Rh7 Qe2 Rh5 Rh7 Bc6 Qe1 Rb7 Kc5 d4 Qd8 Bg2 Qb8 Ke7 e6 Kf6 e7 Rg1 e8B Rh1 Nc1 d3 Kd4 d2 Ncd3 Ng3 Qe2 Rb1 Qe1 Nf1 Kc5 Ne4+ Kc6 Nf2+ Kd7 Kg5 Ke7 Rb5 Kf8 Kf6 Ne5 Ke6 Qe2 Kd6 Kg8 Kc5 Ned3+ Kd4 Qb6+ Kc3 Qd6 Rb7 Rhh3 Rb2 Re4 Rb1 Rhe3 Rb5 Nc1+ Kb2 Ncd3+ Ka1 Rh3 Ba4 Nc6 Rd5 Re6 Rb7 Ncb4 Bb3 Qee5+ Kb1 Re3 Rdb5 Qed5 Ka1 R6e4 Kb1 Q5e6 Ka1 Ne5 Kb2 Ned3+
1r3b2/r1N3qB/1bR1N2q/4PpQb/2B2B1K/pnp5/R3p1pk/R1n1Q1r1 b - - 0 1 illegal: No proof kernel
3RNn2/1q2p2p/7P/K1n2kpB/1NQ3q1/p1r2N2/1prrQb1B/qR1bB3 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 cxb4 a4 bxa4 g5 d5 g6 dxe4 Bc4 fxg6 Bd3 g5 Bf1 g4 d4 Kd7 Kd2 Ke6 h4 a5 f4 g5 c4 b3 Kc3 a3 f5+ Kf6 h5 a2 c5 b2 d5 g3 c6 a4 Kb4 e3 h6 g2 d6 a3 d7 e2 c7 e1Q+ Nc3 Bg7 Rb1 a1R Nf3 g1Q Be2 Qg4+ Bf4 Na6+ Ka5 Qf8 d8B Nc5+ Ba6 Rb8 Qe2 Rb3 Bh2 Qf7 Bb5 Qd5 Be8 Qb7 Bh5 Qf1 Na2 Rc3 Rd1 Rac1 Nb4 R1c2 Qc4 Bd7 c8N Ba4 Nd6 Qfg1 Rd4 Qa1 Rb1 Rd2 Bc7 Bd1 Bg3 Rdc2 Be1 Rd2 Ng1 Ke5 f6 Rdc2 f7 Nf6 f8Q Nfd7 Qf2 Rd8 Rd2 Nf8 Ne8+ Rd6 Qfe2+ Kf5 Bb8 Bd4 Nf3 Bf2 Rd3 Rd4 Bh2 Rd5 Re3 Rdd2 Rd3 Qh4 Rd4 Qg4 Rd8
2N4K/3pqb2/r1rp1p1n/Q1bQ2PR/2Q2B2/q4q1p/3nB1pN/Rk2nN2 b - - 0 1 illegal: No proof kernel
2br3B/R1qpp2r/nB4p1/1N2r1Q1/2N1p3/nN2PpKb/2qb4/1QRBk3 b - - 0 1 illegal: No proof kernel
1nBrb2b/4B3/Nr6/R1pn1p1N/p2bk1Rb/B7/pQKp1P2/Q3qR1b b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 h5 a4 hxg4 c5 b5 c6 bxa4 Bh6 Nxc6 Bc1 Nb4 Kd2 Nc2 h4 Ke7 e4 Kd6 b4 Ke5 b5 c5 h5 g5 b6 d5 h6 a5 h7 f5 b7 d3 b8R d4 Rb5 a3 Bg2 a2 Rh6 a4 Rhb6 g3 Rd6 g4 Rbb6 Nb4 Nh3 Na6 Qc2 Nf6 Ng1 Nb8 Bh1 g2 Qd1 g3 Rb5 Be7 Na3 Qe8 Nh3 g1B Nc2 g2 Qe1 Bb7 Ra5 Ra6 Ba3 Bh2 Nf4 g1B Nb4 Nd5 Nh5 Bh4 Rg6 Rb6 Na6 Bc6 Kc1 d2+ Kc2 Bb5 Rg4 d1B+ Kd2 Bde2 Kc2 Bf3 Qb4 B2g3 Rf1 B1h2 Qb2 Bf6 Bg2 Bgh4 Qa1 Rf8 h8B Bf4 Bh1 Be3 Bg7 Rg8 Bf8 Bh8 Bg2 Qe6 Be7 Rd8 Bh1 Be8 Qb2 Be2 Bf3 B2b5 Be2 Bbd7 Bb5 Bc8 Bd7 Bb7 Qa1 Bc1 Bc8 Bb2 Kd2 d3 Kd1 d2 Kc2 Bc3 Qb2 Kd4 e5+ Nf4 Qa1 Bh1 Qb2 Ke4 Qa1 Qd7 e6 Qc6 Bd6 Qd7 e7 Qe6 Qb2 Bcd4 Qa1 Bd7 e8Q Qe5 Qf7 Be8 Qb3 Qe6 Qbb2 Qe5 Rg6 Nd5 Bf8 Qg3 Rg8 Qe3 Be7 Qe1 Rg4+
1QR2N1b/b3p1Rn/2Prbq2/1BBBk2p/4pQp1/4K1bp/1b4R1/1r2N2n b - - 0 1 illegal: No proof kernel
2b2Q2/1rbN4/nR4bQ/3N2r1/rR1N2Q1/pnBp3p/Kp2Pp2/2bBq1k1 b - - 0 1 illegal: No proof kernel
3r1b1R/2n2b2/p3p1R1/1N1pp1qB/1NQ1n1k1/2Q2n2/1p1Pr1nb/B1N2Q1K b - - 0 1 illegal: No possible last move
BbQ3K1/Nb4p1/2n2Ppp/Q1q2nR1/2QrRr1k/3R1p2/r3pr1B/6nN b - - 0 1 illegal: No proof kernel
K7/4p2q/b1Rrrk2/2r1Q1bp/R1Qn2pB/2pBn1p1/3B1PN1/Q1n1n1N1 b - - 0 1 illegal: No proof kernel
1b1Nb1KN/2rrqBn1/pB1kQ2R/B4p2/r1Rp2R1/q2r3P/Q5pp/5n2 b - - 0 1 illegal: No possible last move
6r1/7P/1K1N1RBR/1prb1B2/1qpbQp2/1NBpk1nb/1Nbp4/2Qnq3 b - - 0 1 illegal: No proof kernel
K1Q1r1nq/R1R3pb/pBpq4/4prBp/2P4N/3rQQ1r/8/Nn1Bb2k b - - 0 1 legal: proof: g4 d5 h4 b5 e4 dxe4 a4 bxa4 g5 f6 Nh3 fxg5 Ng1 gxh4 Bc4 h3 Bd3 Bd7 Bf1 Bc8 Ke2 Kd7 Ke3 Ke6 f4 Kf5 d4 h5 b4 e5 b5 h2 d5 a3 d6 a2 b6 Qd7 b7 Nc6 b8Q Nd4 Nf3 Kg4 f5 Kg3 f6 Nb3 f7 Nd2 Na3 Nb1 Be2 Kg2 Qd3 Ba6 Re1 h1R Bd1 Rh3 Qc8 Rh6 c3 Rf6 Nc2 Rf5 c4 Bb7 Rf1 Qe6 d7 Bb4 d8B Qd6 f8Q Be1 Rf2+ Kh1 Bd2 Rb8 Bg5 Bc6 Ba5 Be8 Qc3 Bg6 Bb6 Bh7 Rd2 Ra8 Rd5 Rb8 Rc5 Ra8 Qb7 Re8 Qc8 Bg3 Nh4 Be1+ Ke2 e3 Qd2 Qc6 Kd3 e2+ Qe3 Qf6 Ke4 a6 Kd5 Qd8+ Kc6 Qd6+ Kb7 c6 Rd5 Qh6 Ka8 Nc3 Qd6 Bg6 Bd4 Bg3 Qf4 e1Q Rb1 a1R Qa3 Qd2 Rb7 Qh8 Bb6 Be1 Ra7 Nb1 Qae3 Ra3 Rdd7 Qd6 Na1 Rd3 Rdc7 Bh7 Qff3+
1nrN2b1/1kQr1p2/1q2N3/4Q1R1/2B1Rb1B/qBpp4/pb3p1P/1nQ2K1b b - - 0 1 illegal: No possible last move
1B2Rbb1/Q4pk1/3NrPpN/2q3B1/Qb5r/3Q1R1B/p1np1bpK/n2q4 b - - 0 1 legal: proof: e4 h5 d4 b5 a4 bxa4 g4 hxg4 d5 c6 Ke2 cxd5 Kd2 dxe4 Ke1 e3 b4 e5 h4 d5 c4 a5 f4 e2 Kf2 e1B+ Kg2 a3 h5 a4 c5 g3 b5 a2 h6 a3 h7 d4 b6 e4 b7 e3 c6 d3 c7 e2 Nc3 Nf6 Rh2 Nc6 b8Q Qd4 Rh3 Nd5 Be3 Bf2 Qb5 e1B Qda4 Bf5 Nf3 Qc5 Nd4 Ra6 Ne4 Bb4 Re1 d2 Qd3 a1Q c8Q+ Ke7 Kh1 a2 Qa8 Na5 Nd6 Kf6 Qa7 Nb3 Kg2 Bg6 N4f5 Qd1 Nh6 Na1 f5 Rb6 Bf4 Ne3+ Kh1 Nec2 Re8 Rg8 h8B Bh7 Nc4 Re6 Bb8 Kg5 Kg2 g6 Nd6 Rg7 Kh1 Bg8 Kg2 Rh7 Bf6+ Kf4 Bg5+ Ke5 Rh4 Rh8 Rf4 Rh7 Rf3 Rh8 Bf4+ Kf6 Bg5+ Kg7 Kh1 Qe2 Bh3 g2+ Kh2 Qd1 Ng4 Rh5 Nh6 Rh4 f6+
nR1bNkN1/Rp4np/2r2q1q/pKb2QBp/2r2N2/3b3P/Qb1p4/5B1Q b - - 0 1 illegal: No proof kernel
R1B1rr2/p2N1b2/1bpP1R1p/3q1q1k/p2p2bN/K7/b2nBn1B/1RQ3Q1 b - - 0 1 illegal: No proof kernel
2QBBq2/p4NBb/p1QnK3/2P1R2p/1p5b/Rn1r1p1k/3Nq1q1/r1R3q1 b - - 0 1 illegal: No proof kernel
K1b3Rn/3QB3/2Q1p3/n2p2q1/N1BpP1rr/p2p1n1q/1R1NpB2/2N2kb1 b - - 0 1 illegal: No proof kernel
4N3/Q1Q1QbpP/1n1qB1R1/1Kb1Rn1p/NN1bpp2/4k3/pB1p4/2rqr3 b - - 0 1 illegal: No proof kernel
k1R2r2/2B1nBB1/4r2p/1p1qR1B1/1Kn2n1P/1n4QN/1rb4N/1B1n2q1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 cxb4 a4 d5 a5 dxe4 a6 e5 Qf3 f5 Bd3 fxg4 Qxf8+ Kd7 Bf1 Nxa6 Ra3 Nb8 Rxa7+ Bb7 Ra1 Bc8 c4 Kc7 h4 Kb7 d4 g5 Kd2 h6 f4 e3+ Kc2 g3 Kb3 g4 c5 g2 f5 e2 f6 e1R f7 g3 d5 e4 d6 e3 d7 e2 Ra5 Ne7 Nd2 Na6 Qg7 Rf8 Nh3 g1Q Qg5 g2 c6+ Kb8 Nf3 Nc5+ Ka2 b3+ Ka3 b2 c7+ Kb7 Kb4 b1N Bf4 Nd2 Qg3 Nc4 Nh2 Nb3 Ra1 Ra2 Rc1 Ka7 Rc3 Bb7 c8B Ka8 Bb8 Be4 Re3 Bc2 Re5 Qe3 Rg1 Rb2 Rh1 Qg5 Rg1 Qb6 d8B Qf5 Rh1 g1N Be6 Qd3 Bg2+ Qd5 Be4 Qe3 Bb6 Qc1 Be3 Qa1 Bg5 Qa7 Nf2 Nh3 Rf1 Nf4 Nh3 Qg1 Bd3 Ra1 Rc1 e1N Bg6 Neg2 Bef5 Rd8 f8B Ra6 Bg7 Nge3 Bf7 Nd1 Be4 Re6 Bh7 Nce3 Bf5 Rf8 Be4 Bd3 Rc8 Nc4 Bh7 Bf1 Bc2 Bd3 Bb1 Bc2 Bc7+
6Kb/1R1B1p1B/Q3r1n1/3pk1nn/B1N2pq1/3B3P/n4bb1/R1n1N1B1 b - - 0 1 legal: proof: b4 a5 g4 axb4 a4 c5 f4 h5 d4 cxd4 f5 hxg4 f6 b5 axb5 Ra6 bxa6 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 Kd3 Kf6 Ke4 g5 Kd5 b3 c4 b2 e4 d3 c5 d2 a7 g3 a8B g2 c6 g4 c7 g3 h3 Bg7 Ra7 Bb7+ Kd6 Qc8 Na3 b1N Ne2 g1N Qb3 d1N Qc4 g2 Qa6 Nb2 Be3 Nf3 Ng1 Ne7 Bd3 Rh6 Nc4 Ng5 Nf3 g1B Ne1 Nc3 Bb6 Qg8 c8B Ng6 Be3 Bd5 Rb7 Bh8 Bb6 Na2 e5+ Kg7 e6 Kf6 e7 Bf2 e8B Bg2 Nf3 Qg7 Ra1 Qg8 Ne1 Qg7 Bc2 Nd3 Bb1 Ndc1 Bd3 Bg3 Bg1 Bf2 Kc7+ d6 Ba4 Nd7 Kd8 Ke6 Ke8 Kd5 Kd8 Nf6 Bcd7 Nh5 Ke8 Kd4 B7f5 d5 Bfe4 Ne7 Bh7 Re6 Bd7 Qg6 Kf8 Qf5 Ba4 Ng6+ Kg8 Qg4 Rbb1 Qg3 B8c6 Qh4 Rb7 Qg4 Be2 Ke4 Bd7 Kf5 Bd3+ Kf6 Ne3 Ke5 Nc4+
R7/1k1p2Q1/1B1P1br1/1B2N1pp/3nR2r/1r2b1r1/b1B1NpB1/K5Bn b - - 0 1 legal: proof: b4 c5 a4 e5 f4 b5 axb5 exf4 Ra6 cxb4 Ra2 Ba6 Ra1 Bc8 h4 g5 c3 bxc3 h5 Qf6 g3 Qg6 hxg6 fxg3 d4 Kd8 e4 Kc7 g7 f5 d5 a5 d6+ Kb7 e5 a4 b6 c2 Kd2 g2 Kc3 a3 e6 a2 Kb2 f4 e7 f3 e8B f2 Bg6 Nc6 Nf3 g1R Bf4 Nh6 g8B Nd4 Bg2 Nhf5 Nc3 Ng3 Bc4 Be7 Ne2 Bf6 Rh4 Nh1 Bh2 c1R Qd3 Rc3 Re4 h5 Qc2 Rh6 Ne5 Ra4 Bb5 Rf3 Bf5 Rg6 Qd2 Rg3 Qc3 Rd1 Bg1 Rdd3 Rg4+ Rdf3 Bc2 Rc4 Re4 Re3 Re1 a1B+ Ka2 Bb2 Ra1 Bc1 Kb1 Ref3 Ra8 Be3 Ka1 Rb4 Qc4 Rf4 Qf7 Rh4 Qg7 Rb3 Ra4 Kb8 Ra2 Ba6 b7 Ka7 b8B+ Kb6 Bc7+ Kb7 Bbd3 Bc4 Ra8 Rb5 Bb6 Ba2 Bc4 Rb3 Bb5
2nN2q1/BP6/qNq1b1rr/2R2k2/2r1QqN1/1Bq1n2n/1p5R/2NNb2K b - - 0 1 illegal: No possible last move
2br1N2/1Q2qB2/BN1qb1K1/2k1P1bR/b2N1pb1/6NR/1b3N2/2rnn1q1 b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Bd2 gxh4 Bc3 b5 axb5 dxc3 Kf2 Ke7 Kf3 a5 Kg4 f5+ Kh5 d5 b4 Kd6 g4 a4 e4 a3 b6 c2 g5 c1B b7 h3 b5 d4 e5+ Kc5 b6 d3 g6 h2 g7 f3 Qa4 d2 Qd7 d1Q Qe7+ Q1d6 Ne2 a2 Qc7+ Nc6 b8N f4 b7 f2 Qe7 Nd4 Na3 Nc2 Nb5 Nf6+ Kg5 h5 g8N h4 Na7 h3 Ng3 Ne1 Nac6 Nd5 Bd3 f1B Bg6 Bb2 Nf6 Ne3 Ng4 Nd1 Nd4 Be2 Nf2 Beg4 Bf7 Qd7 Rc1 a1Q Rc3 Bg7 Rd3 Bf6+ Kg6 Rd8 Rb3 Qe8 Ra3 Ra6 Rc3 Rc6 Nd7+ Kb4 Nf8 Kc5 Qc7 Qee7 b8N Bce6 Qb7 Bg5 Rg1 h1B Ra3 Bhf3 Rh1 h2 Re3 Qa5 Ra3 Qb6 Nbd7+ Kb4 c5 Bh3 Ra6 Bfg4 Ra3 Rc7 c6 Rcc8 Rg1 h1B c7 Bc6 Rh1 Ba4 Rd3 Kc4 Rf3 Qa7 Nb6+ Kc5 Ra3 Qa6 Rf3 Qf1 Rb3 Qg1 Rf3 Bf1 Rh5 Ba6 Ra3 Rb8 c8B Ra8 Bd7 Rac8 Bb5 Rc7 Qa8 Bac8 Qb7 Kb4 Ba6 Rc1 Nge2 Kc5 Rah3 Qc6 Ng3 Qd5 R3h4 Qdd6 Rh3
1b1R1n2/B1BB1rq1/Q1NP4/1Nn3BR/nKn5/3rr2B/q1p3n1/1nb4k b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 b5 f4 d5 f5 dxc4 f6 exf6 Nf3 f5 Kf2 f4 Ng1 Bd7 Ke1 axb4 Ra2 b3 Ra3 b4 Ra1 Bb5 axb5 Qd7 Ra7 Qd4 Ra1 Qd8 h4 Kd7 e4 Kd6 d4 f5 Kd2 g5 h5 c5 e5+ Kd5 b6 Ke4 d5 g3 h6 g4 h7 f3 b7 b2 e6 f4 e7 f2 e8B f3 Be2 f1N+ Kc2 g2 Bh6 c3 Kb3 f2 Ba4 c2 Rh3 c1B Qd2 c4+ Kc2 c3 Kb3 g3 Be3 c2 Rh2 Na6 b8B Bd6 Rh6 Qa5 Bd7 Nc5+ Kc4 b3 Bc7 Rf8 Nh3 g1R Bg5 g2 Bb8 Ne7 Bf4 Ng6 Bc6 Qa2 Bg5 Rf7 Kb4 Rd8 h8B Nf8 Kc4 Ne3+ Kb4 f1N Bd4 Nc4 Bg4 Nfe3 Bc7 Re1 Qe2 g1Q Na3 b1N Bcd7 b2 Nf4 Nc3 Bh3 b1N Rh5 N3a4 Ne6 Qg2 Qd3+ Kf3 Nb5 Qg3 Qg6 Ng2 Bg1 Qg4 Ned4+ Kg3 Qh6 Re3 Nc6 Qd4 Bf2+ Kh2 Qg6 Qg7 Qd3 Kh1 Qa3 Nac3 Qa6 N3a4 Bg1 Nbd2 Rb1 Bg3 Rb3 Nb1 Rd3 Rde8 Rd2 Rd3 Bf2 Nb3 Bd4 Ree3 Ba7 Nbc5 Re2 Ref3 Re8 Rfe3 Rd8 Bf4 Ba5 Bc7 d6 Bb8 Bc7
B4K2/RqRbrb2/n3R3/1pnqN3/bRQ1Pn1r/nR6/1N1bn1k1/5B2 b - - 0 1 illegal: No possible last move
KR1B1nBn/1n1B4/1rBQ2kb/1q6/3N2q1/1rqb2P1/p2B4/2rq1nRN b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Qb3 gxh4 Qc3 b5 axb5 dxc3 Kf2 h5 Kf3 d5 b4 a5 e4 f5 b6 Kf7 b7 c2 c5 d4 c6 a4 e5 d3 c7 h3 g3 h2 b5 h4 e6+ Kg6 e7 h3 b6 a3 Bb2 c1R Bc3 a2 Bb4 d2 Ba3 d1Q+ Ne2 Rh6 Bc5 Q8d4 Rg1 h1Q+ Bg2 h2 Bd6 Ra3+ Nc3 Nd7 b8Q Ba6 c8B Bd3 b7 Rb3 Ne4 Qc3 Be5 Bg7 Bf6 Nf8 Rf1 Qg1 Qd6 h1N b8B Qgd4 Rb1 Nf2 Rg1 Qdc4 Bd7 Q4b4 Ng5 Ne4 Nh3 Nc5 Nf2 Nb7 Nh1 Qa4 Bc7 Qad4 Ba5 Qdb4 Kf2 f3 Ke3 f2 Bgc6 f1Q Nd4 Qg4 Bd5 Qfd1 B5c6 Qb5 e8B+ Kh7 Bg5 Ne7 Bf7 Neg6 Bgd8 Nh8 Bb4 Rf6 Bg8+ Kg6 Bba5 Qcc2 Bd2 f4+ Kf2 f3 Ke3 f2 Rb2 Qc3 Rb1 Qh3 Rb2 Be2+ Ke4 f1N Rb1 Bh6 Rb2 Qa6 Kd5 Bd3 Rb1 Qhg4 Rb2 Ra3 Rb6 Rb3 Rb4 Nc5 Rb8 Qaa5 Bb5 Qab4 Kc6 Nb7+ Kb6 Qbc4 Ka7 Qd5 Bbc6 Qb5 Ka8 Re6 Qc7 Rf6 Bf3 Rb6 Bfc6 Qgh5 Qe5 Qhg4 Qd6+
1R1Br3/nn2b2q/2br1q2/1RB1R3/2NRn1kn/1Pbr3b/2N1KpR1/1Q6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 c4 Ke7 e4 Ke6 h4 d5 b6 g5 h5 f5 e5 a5 b7 a4 c5 a3 c6 a2 c7 d3 h6 d4 h7 f4 Be3 Kf5 e6 f3 e7 g4 e8R Nc6 b8B Qf6 Rh3 Ra6 Bg5 Na7 Nc3 Rd6 Nge2 g1N Bf4 g2 Nb5 g3 Qc1 d2+ Kd1 Kg4 Be3 Be7 Rb1 a1N Bg5 Nb3 Qc4 Nc5 b3 Nb7 Kc2 d1R Rh2 Rd3 Rd1 f2 Qd5 Nf3 Na3 g1B Nc4 Nh4 Qh1 g2 Rd2 Bf5 Kd1 Be4 c8R Bc6 Rh3 Bh2 Qe1 Bb5 Rc5 Be5 Rh2 Bc6 Rb5 g1Q Bc7 Qg2 Bd8 Qh1 Be3 Qe4 Rf8 Qg7 Rf3 Nf6 Bc7 Rc3 Rf5 d3 Bc5 Qd4 Qh1 Ne4 Qf1 Rc8 h8R Qh7 Rg8+ Bg7 B7b6 Qe5 Nd4 Qe6 Nc2 Qeg6 Re2 d2 Rh5 Bd4 Re5 Rf3 Re1 Bc3 Ke2 Rcd8 Rf8 Qf6 Rd1 Rc8 Rf7 Rh8 Rf8 Rh3 Rb8 Re8 Bd8 Rg3 Ra1 Rf3 Ra4 Rfd3 Qb1 Kg3 Nb2 d1B+ Kf1 Kf4 Rd4 Bg4 Nc4 Bh3+ Ke2 Kg4 Rg2+
QB1b4/N1nK4/2NpnB2/5Rbn/5R2/rkb3q1/1Pnbb1N1/Nr2Nb2 b - - 0 1 illegal: No possible last move
1n1q4/Nqq1N2b/2bB1rB1/r2r2NN/1Pbb1R2/r1Q4p/bk6/RN1K4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 exf6 Bf4 f5 Bc1 f4 h4 g5 g3 Na6 Nh3 Nc7 Ng1 Ne6 Rh3 g4 Rh1 Ng5 hxg5 fxg3 b4 Ke7 c4 Ke6 e4 Ke5 c5 d5 c6 a5 c7 f5 g6 h5 g7 f4 Qf3 d3 Bd2 Kd4 e5 g2 e6 a3 e7 g3 e8N a2 Nc3 a4 Ne4 a3 Rh2 h4 Rh3 Bc5 Qe2 f3 Qd1 Bf5 c8N Ra6 Qb1 f2+ Kd1 Bh7 Qc2 Ne7 g8N Rf6 Rb1 a1R Ne8d6 a2 Nb6 Nc6 Ng5 Nb8 Be2 f1B Bf4 d2 Bf3 Bc4 Rh2 h3 Qe4+ Kc3 Qe2 d4 Rc1+ Kb2 Bd5 Qc7 Nh6 Rd8 N1f3 g1Q+ Qf1 g2 Ne1 Qh1 Qf3 g1Q Ndc8 Qgg2 Be4 Rd5 Na7 Qg4 Ne6 Qg8 Nf5 Qgd8 Bd6 Qg2 Nc2 Qgg7 Nc6 Qb7 Bd3 Qgc7 Nd7 Bb6 Ng5 Bc5 Ke2 d1B+ Ke1 Be2 Nfe7 Bb3 Be4 d3 Na7 Bd4 Rf2 Bf1 Qe3 d2+ Kd1 Bfc4 Bg6 Ba4 Qd3 Bab5 Na3 Bc6 Ke2 d1B+ Ke1+ Bc2 Nb1 Bg8 Rf4 Bh7 Qe3 Bf5 Kd2 Be6 Kd1 Rf7 Kd2 B4b5 Rg4 Re5 Nf6 Rf8 Nh5 Rf6 Rf4 Bb3 Na3 Rd5 Qd3 B5c4 Rd1 Rb1 Ne4 a1R Ng5 Rc1 Re1 Rc3 Qg3 Ra2 Ra1 Re3 Nb1 Raa5 Qf3 Ba2 Kd1 Rea3 Qc3+
2N1rN2/4pK1B/2NB1nRr/8/1nQbPn2/N3b1bk/1Nb2rRb/r4n2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 h4 g5 a3 bxa3 Kd2 g3 Ke1 g4 Rh3 Qc7 Rh2 Qe5 Rh1 Qg5 hxg5 Bg7 Bb2 Bh6 Bc1 Bf8 Kd2 Kf7 Kd3 Ke6 Ke4 d5+ Kf4 b5 c4 h5 g6 h4 Kg5 h3 f4 a2 g7 g2 Kg6 g3 c5 b4 c6 b3 e3 b2 c7 h2 Qb3 d3 Qc2 d4 Nh3 g1B Nc3 b1N Nd5 g2 Qd1 d2 Qc2 d1R Qb3 d3 Ba3 d2 Bc4 Bf2 Bd3 g1B Qb2 Bg3 Qd4 Nf6 g8N Bh6 Qc4 Na6 Bd6 Nc3 Nb6+ Ncd5 Nf2 Rf1 Nd1 Rf2 Nb2 d1N Rb1 Bb7 c8N a1B Bc2 Bg5 Nh6 Re8 Ng4 Nb4 Ne5 Bc6 Kg7 Ba4 Bh7 Bc2 e4 Ne3 Re1 Nf1 Nc6 Ra4 Re2 Ra2 Nd1 Bd4 Nb2 Ra1 Rd2 Rg2 Kg6 Bge3 Kg7 Rf2 Rg1 h1R Re2 Bh2 Rg3 Bh4 Rg6 B4g3 Rd2 Rf3 Rg2 Rf2 Qc5 Bg1 N6c4 Rh6 Na3 B1h2 f5+ Kd7 Bb8 Nf4 Be5 N6d5 f6 Ke6 f7+ Nf6 Bd6 Bc3 Na5 Be5 Qc6 B5d4 Bc5+ Ke5 f8N Nh3 Kf7 Kf4 Qe6 Kf3 Nc6 Nf4 Rg8 Re2 Qc4 Rf2 Kg7 Kg4 Kf7+ Kh4 Bd6 Kh3 Rg6
2r1qrQ1/2q1Rn2/bp1nNNNn/1p1k4/7K/B1bN4/N1n1PRB1/1q1n4 b - - 0 1 legal: proof: c4 d5 f4 e5 b4 exf4 d4 g5 h4 gxh4 b5 a6 cxd5 axb5 Ba3 c5 Bc1 cxd4 Kf2 Kd7 a4 Kd6 g4 h5 g5 f5 a5 f3 g6 f4 g7 d3 a6 d2 a7 h3 Ra3 h2 Qe1 b6 Bb2 h4 Rd3 h3 Qd1 Nd7 Nc3 Ne5 Bg2 Nh6 g8N Bg7 Qb3 Qc7 Nf6 Ba6 Na2 Rac8 a8N Rhf8 Re3 Nef7 Re7 Kc5 d6 d1N+ Kf1 f2 d7 Kd6 Nf3 Kc5 Rg1 h1N d8N h2 Nb7+ Kc6 Ne4 Bc3 Qa4 Kd5 Nh4 Qd7 Nbc5 Qe8 Bh3 Ng3+ Kg2 f1N Ba3 Ngf5 Nd3 N5d6 Ng6 Nfe3+ Kf3 h1Q+ Bg2 Bh8 Rf1 Bc3 Rf2 Qh2 Qa5 Nc2 Nc7+ Kd4 Ne6+ Kd5 Rb7 Qh4 Rd7 Qhd8 Re7 Qc7 Qa4 Nhf5 Kg4 N5h6+ Kh4 f3 Rf1 f2 Qd4+ Kc6 Qg7 Kd5 Qh8 Ba5 Qg8 Bc3 Rh1 f1Q Rg1 Qf3 Rf1 Qe3 Rf3 Qc1 Rf2 Qb1 Nf6+
1bN5/p1b2bbn/1r4Nq/kq6/r2nRP1p/R1BRK1b1/2Rn3B/1R4Q1 b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 a4 cxd4 c3 g5 Bc4 gxh4 Bb3 b5 axb5 d3 Bc2 dxc2 Kd2 h5 g4 e5 b4 d5 f3 Kd7 g5 Kc7 c4 Kb6 g6 d4 g7 d3 Na3 e3+ Ke1 d2+ Ke2 e4 Rh3 Qd5 Rh2 h3 Rh1 h2 Qe1 d1N Bb2 c1B Nh3 Nf2 Qg1 Be6 Nf4 Bf7 Bc3 Nf6 g8R Bg7 Rd8 Nh7 Ng6 Nc6 Rd7 Qe5 Rd3 Rab8 Rb1 Rhd8 Ra1 Rd4 c5+ Kc7 Nc4 Rb6 Ra3 h4 Ke1 e2 Nd6 Bf4 Nc8 Bg3 Kd2 e1B+ Ke3 Rc4 Ra2 Nd4 c6 Qh5 Ra5 Bd6 Ra3 Qh6+ Qg5 Bde5 Rg1 h1Q Rg4 Bd6 Rf4 Qf1 Qg1 Kb8 c7+ Kb7 Nce7 Bde5 c8R Bb8 Rc6 Nh1 Rc5 Bg3 Nc8 Nf2 Rc6 Qh5 Rg4 Bgc7 Rf4 Qh6 Rc5 Ra6 b6 Ra4 Rc6 Ka6 b7+ Kb5 Ba1 Rc1 Rc2 Rb1 Bb2 Ka6 b5+ Ka5 Bc3+ Rb4 Rd1 Qc4 b6 Qb5 Rb1 Nd3 Rd1 Nc1 Rd3 Ncb3 Be1 Bce5 Bc3 Bbc7 b8R Nd2 Rb7 Bb8 Rd7 Bec7 b7 N2b3 Rd1 Nd2 Rb1 Ne6 Rd3 Nd4 Kf2 e3+ Kg2 e2 Kf2 Bce5 Ke3 Bbc7 b8B e1B Qg4 Bg3 Qg5 Bb6 Bd6 Bc7 Re4 Bef6 Bf4 Bfe5 Qg4 Bb8 Qg5 Bec7 Be5 Be1 Bh2 Beg3 f4 Qc5 Bb2 Rb6 Qg4 Qe5 Qd1 Qf5 Qg1 Qb5 Bc3+
2B2bN1/2qNq3/1k4rN/q1Rnrb2/1P1R4/1qnB1N1p/Q3p1qq/K1N5 b - - 0 1 legal: proof: d4 a5 h4 c5 e4 cxd4 h5 f5 h6 fxe4 b3 a4 Bd3 a3 Bf1 gxh6 Bb2 axb2 a4 b5 axb5 h5 Qd2 h4 Qd3 Ra6 Qd1 Ra8 Kd2 e5 g4 d5 f4 Kd7 c4 Kc7 Kc2 h5 f5 h3 f6 d3+ Kc3 h2 f7 d2 c5 e3 b4 e2 g5 e1Q c6 h4 g6 d4+ Kb3 d3 g7 e4 Qe2 d1Q+ Qc2 d2 Ra5 h3 Ka2 e3 Ra7+ Kb6 c7 Nf6 g8N Qf3 Ra3 d1Q Ra5 Na6 Nc3 Q1d6 Nh6 Qg2 Nce2 Bf5 c8B Ne4 Nf3 Q6c7 Nc1 Rg8 Bd3 Rg6 Qe2 Qeh4 Rd1 h1Q Qc2 e2 Kb1 Bd6 f8N Qhh2 Nh7 Bf8 Nf6 Qd5 Nfg8 Qhe7 Qa4 Ra7 Qa2 Ra8 Be6 Re8 Bc8 Qb3 Ra3 Qa4 Rc3 Qa5 Rc5 Nc3+ Kc2 Qcd8 Rd2 Nc7 Rd1 Ne4 Kb1 Nd5 Rd2 Qec7 Rd1 Re5 Rd2 Qde7 Rd1 Ka7 b6+ Kb8 b7 Ka7 b8N Kb6 Kc2 Nec3 Kb3 Qb5 Ka3 b1Q Nd7+ Ka7 Rd2 Qc2 Rd1 Qca4+ Kb2 Qba5 Ka1 Qb3 Be4 Qhh1 Rd4 Qhh2 Nb8 Kb6 Bc2 Qed7 Bd3 Qe7 Nd7+
1n3NBN/r1p1R2n/n1B1nNN1/1b1r2kr/Qr6/4p1q1/1R1P2n1/3K2Nr b - - 0 1 legal: proof: c4 a5 g4 d5 f4 dxc4 b4 axb4 e3 h6 g5 hxg5 Bb2 e6 Bf6 Bd6 Be5 f6 f5 fxe5 Qe2 e4 Qd1 Bf4 exf4 Ra4 Bh3 Ra5 Bf1 Ra8 a4 Ke7 h4 Kf6 h5 b5 a5 c3 h6 g4 a6 g5 a7 e5 h7 e3 Rh3 b3 Bg2 e2 Bd5 b4 Rg3 c2 Ra5 c1N Nh3 e4 Rc3 g3 Ng1 b2 Rc4 b3 Raa4 g4 Rd4 g2 Rac4 g3 Rc2 Bd7 Rcc4 Na2 Rc3 Bb5 Nf3 g1N Rc1 g2 Rc5 Nh3 Bc4 Ng5 Ng1 Qd6 Nc3 b1R Re5 b2 Re7 Nb4 Be6 N4a6 Rb4 Ra1 Rb3 b1R Rb2 Ra5 Bf7 Ne6 Nd5+ Kg7 f6+ Kh6 f5 Qa3 Be8 Qb3 f7 Kg5 f8N Nf6 Bc6 Qd3 Ng6 Qc3 Ra2 Rb4 Qa4 Rd8 h8N Nh7 Nf6 Rd5 Rb2 Qd3 Nh5 Qc3 f6 Qb3 Kf2 e1N f7 Qd3 f8N Qc3 Ne2 g1R Nf6 Rh1 Ng1 Qe5 Ke3 Ng2+ Kf2 e3+ Kf3 Rd3 Ke2 Qg3 Kd1 Rdd4 Be8 Rdh4 Bf7 Rh5 Bg8 Nc6 Re8 Rd8 a8B Ncb8 Re7 Rd5 Ne8 Nac5 Bb7 Ra7 Nf6 Nca6 Bc6
k2bn2K/2B5/1Nq1R3/R1p1N2R/1P1bbp1n/qb4R1/Q1qn1r2/1R3qB1 b - - 0 1 illegal: No possible last move
4kN2/3p1b2/PKn2q1R/2nR1B2/Q2Bqb1q/4Bpp1/rN1B1r2/5nbB b - - 0 1 legal: proof: c4 c5 b4 e5 d4 cxd4 g4 h5 f4 exf4 gxh5 a6 b5 axb5 Nh3 bxc4 Ng1 c3 Kf2 f5 h4 b5 a4 g5 e4 b4 h6 b3 e5 f3 h7 c2 h5 b2 a5 d3 Ke3 f2 Kd4 g4 e6 d2 e7 g3 Kc5 f4 a6 f3 h6 Ra7 Bg2 f1N Nc3 b1Q Ra5 Rb7 Nge2 Nf6 Nd4 Rb2 Ne6 Nc6 Na4 Ra2 Nb2 Bb7 Rh2 Qa1 Bh1 Ne4+ Kb5 Qa8 Kb6 Nc5 Rh5 Bg7 Nf8 Bd4 Rh3 Bg1 Rh2 Rg8 h8B Rg7 Rh3 Rh7 Bd4 Rh8 Be3 Rh7 Nc4 Qf6 Nb2 Rh8 h7 Qh4 Qe2 d1Q Qc4 Qd6 Qa4 Qdf6 Bcd2 c1B Rb5 Qb8 Ra5 Qbf4 Rh2 Qe4 Rh3 Kf7 e8B+ Ke7 Bg6 Ba8 Bf5 Ke8 Bh6 Bb7 Bc3 Bf4 Bd2 Rg8 h8B Rg5 Bg4 Rd5 Bf5 Rd6 Be3 Rd2 Rb5 Rf2 B8g7 Ne6 Rd5 Nc5 Bh8 Qg4 Rh5 Qgh4 Bg5 Ba8 Rh6 Bd6 Qc4 Qf7 Rd2 Nb8 Bef4 Bd5 Qa4 Nc6 Rd3 Qg7 Bd2 Bf7 Bge3 Bf4 Rd5 Qg6 Bhc3 Qgf6 Bcd4
1q1N2B1/2RKQ1n1/1N3bq1/qP5k/Bpnp1R2/1r2q1b1/R1r2p2/2R2nR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 f5 c5 f6 exf6 Rh3 f5 Rh1 f4 c4 Qf6 b5 Qd6 Ba3 Bb7 Bb4 cxb4 d3 Bd5 c5 Bc4 dxc4 Qb6 Na3 Qa5 Nb1 Qd8 Kd2 d5 Kd3 f5 Kd4 Kf7 Ke5 Kg6 Ke6 h5 g4 a5 e4 h3 e5 f3 g5 f2 c6 h2 c7 f4 c8B f3 c5 h4 c6 a3 c7 a2 Nc3 a4 Qd2 a3 Re1 a1B Rc1 a2 Na4 h3 Nc3 Ra3 Qe1 Nc6 Bc4 f1N Nge2 f2 Rg1 h1Q Na4 h2 Nb6 Nf6 Nd4 Ne8 Bb3 Kh5 g6 Qe4 g7 h1Q g8R Qh3+ R8g4 Qhe3 Ba4 Na5 Rf4 Bd6 Nc6 Rb3 Bb7 Qg2 c8R Nc4 Rc7 Qb8 Nd8 Ng7+ Kd7 Qg6 e6 Bf6 e7 a1Q e8R d4 Bd5 Rf8 Bg8 Qa3 Rf3 Bg3 Re4 Re8 Ref4 Re6 Qe2 Rc6 Qe1 Nb2 Qe2 Rc2 Qe1 Nc4 Qe2 Qed3 Qe7 Qde4 Rd3 Qea8 Rdd1 Qa5 Ra1 Qc1 Ra2 Qe3 Rc1
R1K3n1/N4q2/pqB1Nn1p/p1P1Q2R/7r/N2N2r1/n1B1n1kb/b3r1N1 b - - 0 1 legal: proof: g4 f5 f4 c5 d4 cxd4 e4 b6 a4 g6 a5 fxe4 f5 bxa5 Bf4 g5 h3 gxf4 g5 Ba6 Kd2 Be2 Ke1 Bg4 hxg4 Bg7 Qe2 Bh6 Qd1 Bf8 Kf2 Kf7 c4 e5 b4 d5 b5 f3 Kg3 e3 b6 d3 b7 e4 Kf4 d4 Ke5 f2 c5 e2 f6 Kg6 Ke6 e1B f7 e3 Qe2 a6 Rh2 d2 Bg2 d1N Na3 f1Q Rb1 d3 Bc6 d2 Rh5 Nd7 b8N Ndf6 Nd7 Nc3 Rb8 d1N Qh2 e2 Qe5 Ra7 Ra8 Bg7 Kd6 Na2 f8N+ Kf7 Ne6 Kg6 Rh3 Qb6 Rh5 Nh6 Ke7 Bg3 Kd6 Rc7 Ke7 Nhg8+ Kd8 Rb7+ Kc8 e1R Qf5+ Kf7 Qe5 Ndc3 g6+ Ke7 g5 Bh2 Bb5 Ne2 Bc6 Bh6 g7 Kf7 Qc7 Kg6 Ne5+ Kf5 Nd3 Kg4 g6 B6f4 Qe5 Kg3 Ba4 Kg2 Bc2 Nh6+ g8B Rg7 Qb2 Bd6 Qe5 Bf8 Bf7 Nhg8 Be8 Bd6 Bc6+ Qf3 Qe4 Bde5 Qf5 Ba1 Qe5 Rd7 g7 Rd4 Qe3 Rg4 Qe4 Rg3 Qe5 Nh6+ g8N Qd5 Be8 Qc4 Ne7 Nhg8 Nf8 Qf7 Nc6 h6 Ne6 Rg4 Ng5 Rh4 Na7 Rh7 Bd7 Rg7 Ne6 Rg3 Bc6+
1rn1n2B/pk4B1/2b1N1b1/R1K3n1/N2p3N/2N2bR1/P2b1pbQ/3N1q1n b - - 0 1 legal: proof: f4 b5 c4 bxc4 f5 g5 f6 g4 d3 cxd3 g3 exf6 Qc2 f5 Qd1 f4 h4 Qf6 h5 Na6 Bg2 Qg5 Bf3 gxf3 g4 Qd8 g5 Rb8 Rh2 Rb6 Rh1 Rg6 hxg6 Ba3 Rh5 Bc5 Rh1 Bf8 Kd2 c5 Kc3 f5 Kc4 d5+ Kb5 Kd7 e4 Kc7 b4 h5 e5 d4 g7 h4 e6 d2 e7 c4 e8N+ Kb7 g6 h3 Na3 h2 Qe2 d1B Nh3 f2 Qh5 f1B Nf2 f3 Bh6 f4 Nc7 c3+ Nc4 c2 Ne6 Ne7 g8N c1N g7 Ne2 Nb2 Nc7+ Kc5 Ne8 b5 Bg2 b6 Bd7 Nf6 Ng1 g8N Nc8+ Ne7 Bc6 Na4 Nh3 Bg7 Ng5 N6e4 Be2 Rhe1 h1N Nd1 f2 Qh2 f1B Nec3 Bef3 Re5 Bd3 Rb1 Qd7 Rb3 Bg6 Rd5 Rg8 Bh8 Bg7 Nf5 Bh6 Nh4 Qf7 Re5 Qf5 Bg7 Qd3 Ra3 Qf1 Re3 Bfh5 Rg3 f3 Bh8 f2 Bg7 Ka6 b7 Bhf3 b8B Kb7 Bh8 Nf7 Bbe5 Bd2 Bef6 Ng5 Bfg7 Nb6 Bf8 Nd6 Bfg7 Rb8 Nab2 Nbc8 Ra5 Ne8 Nba4
2B2N2/bB2P1Q1/q1p1nBn1/3p2kB/3R2pN/r7/b2Rq2p/K1nrn1B1 b - - 0 1 legal: proof: c4 f5 d4 e5 g4 fxg4 h3 gxh3 b4 a6 b5 axb5 dxe5 bxc4 Qd2 c3 Qd5 Na6 Qd1 Nb8 a4 Kf7 e4 Kg6 f4 d5 e6 h5 e7 b5 e8B+ Kh6 a5 g5 f5 h4 a6 h2 e5 h3 a7 c6 e6 c2 Kd2 g4 Kc3+ Qg5 Kb2 b4 f6 b3 f7 Qe3 Qd4 Kg5 Ra2 Bc5 f8B Ne7 Ba6 Nd7 Na3 Ng6 Bg7 Ndf8 e7 Bf5 Ka1 Ne6 Nb5 Rh7 Ba3 c1N Bc8 Qe2 Be5 Bb1 Rd2 Ba2 Nc7 Rf7 Qc3 Rf1 Bf7 Rd1 Nf3+ Kf5 Rg1 h1N Nh4+ Kg5 Rf1 h2 Rf4 Qa6 Rfd4 Nf2 Bb4 Bb6 Bc5 Nfd3 Qb2 Ne1 Qc3 Rb8 a8B Ba7 Bab7 Ra8 Be8 Nh8 Bh5 Ng6 Ne8 Qe2 Nf6 Qa6 Nd7 Qe2 Kb2 Qa6 Nf8 Qe2 Ka3 b2 Bb6 b1Q Bc5 Qf5 Kb2 Qff1 Ka1 Qf6 Rb4 Qff1 Bg1 Qa6 Rbd4 Qg2 Qf3 Qf2 Qf7 Qfe2 Qg7 Rb8 Ba8 Rb3 Bab7 Ra3 Bf6+
2b2R2/1pR1bN2/pB1Q2K1/B2R1N1R/P2n2n1/3rq1p1/4kq1p/R3qb1n b - - 0 1 legal: proof: d4 c5 g4 d5 b4 cxb4 c4 dxc4 d5 f5 d6 fxg4 Bg2 e6 h4 g5 Rh2 a6 Bf3 g3 Ba3 g4 Bc1 Nc6 Bd5 exd5 Rh1 Be6 Be3 Rc8 Bc1 Rc7 Bb2 Rg7 Bc1 Rg5 hxg5 Bh6 Rh5 Bg7 Rh1 Bf8 Kd2 Kf7 Ke3 Kg6 Kf4 h5 e4 d4 a4 c3 f3 d3 e5 h4 d7 Kh5 g6 g2 g7 d2 Ne2 g1Q Bb2 b3 Na3 g3 Nd4 h3 Nc4 c2 Nf5 c1Q Bd4 b2 Bb6 b1B Ncd6 Qe7 d8B Nh6 g8R Bd3 Nf7 Qf2 Rg7 Bc8 e6 Ng4 Ba5 Qea3 e7 Bf1 e8R Nd4 Re5 Be7 Bdb6 Rd8 Rd5 Qb4 Ke4 Qcc5 f4 Qc1 Qf3 d1N Qa3 Qbd2 Qd6 Qde1+ Ne3+ Kh4 f5 Qa3 f6 h2 Rgg5 Qfe2 Kf4 Ndf2 Nf5+ Kh3 Rc1 Kg2 Rh5 Qad3 Kg5 Kf3 Rc2 Qde3+ Kg6 Q2d2 Rg1 Nh1 Rcc5 Ke2 Rc7 Bh3 Rf1 Q1f2 Ra1 Qde1 Ne5 Bg2 f7 Bf1 f8R Rd7 Rcc5 Rc7 Rcc1 Rc3 Nf7 Rd3 Rc7
n1bN4/n1rk1N2/R3qBnQ/q1RB3q/3p1Rpq/1p3Rb1/pK2P3/1R6 b - - 0 1 legal: proof: f4 e5 d4 exf4 a4 h5 g4 hxg4 Nd2 c5 Nb1 cxd4 Nh3 b5 Qd3 a5 Ng1 b4 Qd2 Ra7 Qd1 Rb7 b3 Qc7 Ra2 Rb5 axb5 Qc4 Ra4 Qxb3 Ra1 Qb2 Kd2 f5 h4 d5 b6 g5 b7 a4 h5 g3 h6 a3 h7 g4 Nf3 b3 Bg2 a2 Nc3 d3 Nh2 f3 Re1 f2 Nf3 f1Q Nd4 f4 Be4 g2 Nf5 g1Q Ne7 d4 Rb1 f3 Nc6 f2 Nb5 Qg3 Nd6+ Kd7 Nd8 Qfh3 N6f7 f1Q Bd5 Nc6 b8R Nge7 Ra8 Ng6 Ra6 Qa3 c4 Qgh4 c5 Qf5 Rf1 Bd6 Rf4 Na7 Qh1 Qe6 Kd1 Re8 h8R Re7 Rf8 Qa5 Rf3 Be5 Bg5 Bg3 Kc1 d2+ Kb2 Qh5 Bf6 d1N+ Ka1 Nc3 Kb2 Ncb5 c6+ Kc7 Qc1 Q3h4 Qh6 Rd7 Nh8 Kd6 Rf7 Re7 c7+ Kd7 Rf8 Nc3 Nhf7 Na4+ Kc1 Nb6 Kb2 Bb7 c8R Na8 Rc5 Bc8 Rf4 Nb5 Rg8 Na7 Rg7 Ke8 Rf3 Rc7 Rg8+ Kd7 Re8 Qc6 Re4 Qe6 Ref4
B2B1RQ1/1N2Kbk1/1qppp3/1RRP4/2bp2n1/2R1Nr2/qb5p/2qR3r b - - 0 1 illegal: No possible last move, all moves rejected
Rbr1kNBn/3NR1n1/q1n5/RR1n3r/KnQR1n2/2q2n2/1q2r2P/4B2b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 g5 a4 d5 c4 b5 Kc2 f5 Kb3 g3 e4 f3 c5 f4 a5 f2 a6 g4 a7 g2 e5 f3 c6 g3 c7 d3 e6 d4 e7 d2 Ne2 g1N Ra2 d3 Nec3 g2 Ne4 Qd4 Nec3 Bb7 Ne4 Nh3 Qc2 d1R Ra1 g1N Bf4 d2 Qc4 Qc3+ Ka2 b3+ Ka3 b4+ Ka4 b2 Bg5 b3 Na3 b1N Bf4 b2 Bg3 Nh6 Bd6 Re1 Nc5 d1N Qg4 Nf7 Ra2 Nf4 Qh4 Nc6 Qh6 Rc8 a8R Ne3 Nb5 Nc2 Nd7 N2b4 Nd4 Re2 Qh4 Rh5 Ne6 Nh8 Bc5 Bg7 Nef8 Be5 Bg2 f1Q Bf2 Bd6 Be1 f2 Bd5 Nf3 Bg8 Nfd3 Rb8 Nfe5 Be6 Nd4 Ka5 Nd2 Qg4 b1Q Nb6 Nf5 Bc4 Qbb2 Qd4 Rd8 c8R Nf4 Bg8 Re3 Rc7 Ng7 Rg1 Bh1 Rg3 Rc8 Rd7 Re4 Rd3 Ndf3 Qd5 Qfe2 Rd4 f1N Qb5 Ne3 Ra8 Qd1 Qc4 Bb8 R7d5 Qdb3 Nbd7 Q3a3+ Kb5 Qa7 Ra5 Qa6+ Ka4 Nec6 Rb5 Ned5 Bh7 Kf7 e8R Bd6 Re6 Bc7 Rf6+ Ke8 Bg8 Re2 Rf7 Bb8 Re7+
5NR1/2BB2R1/bq1n3r/Rb1K2N1/1q1n1bR1/2rnrr2/1PQr3R/b3k2q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kc4 e3+ d3 c3 f5+ Ke5 d5 g5 a5 g6 h5 g7 d4 e4 h3 Ne2 f3 Bf4 f2 Qc1 a3 Bd2 a4 Be1 h4 Qe3 f4 Qc1 a2 Rh2 a3 Ng3 f3 Nf5 Nf6 g8R Rh6 Qf4 Qb6 Rhg2 h2 Qe3 h1Q R2g3 h3 R3g4 h2 Bd2 Ba6 R4g5 Nc6+ Ke6 Bd6 e5 Ne4+ R5g6 Rc8 Bh3 f1B Qg5 f2 Be3 d2 Ne7 Kd3 c4 Ke2 c5 d1Q Nc3+ Ke1 Bf4 d3 Qg2 d2 Kd5 Nd4 c6 Bfb5 c7 f1R e6 Rf3 Rg4 Qb1 R8g7 d1R Ng6 Rd2 e7 Re3 Bg5 Bf4 e8R Nd6 Rh8 Rf8 c8R Qc1 Rb1 a1R Bd8 a2 Ne4 Rf7 Ra8 Rc7 Re8 Rcc3 Reg8 Qd1 Rc1 Rb1 Raa7 a1B Nf8 Rf3 Ra8 Rce3 Rc4 Qb3 Bc7 Qb4 Ng5 Rc1 Rh4 Rcc3 Bd7 Qg1 Rh5 h1N Rh2 Nf2 Ra7 Nd3 Ra8 Rd1 Qc2 Rd2 Ra7 Qh1 Ra8 Ne2 Re4 Nd4 Ra7 Be5 Rg4 Bf4 Ra8 Bc8 Ra3 Bca6 Ra5
q5rr/2BBrbrn/r3B2Q/1b2b2N/6nq/B1b2P2/1RKb4/2N1RrBk b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 h4 Kf7 d4 Ke6 Kd2 Kd5 a4 b5 a5 c5 h5 e5 a6 g5 h6 g3 h7 b3 a7 c3+ Ke1 g4 Bd2 b4 Bh3 g2 Be3 b2 Ra4 b3 Ra6 c2 Kd2 c1Q+ Ke1 g3 Rg6 c4 Bd2 e3 Ne2 Ke4 d5 Kf3 d6 g1R+ Bf1 g2 d7 e4 Rb6 c3 Rhh6 c2 Rh1 Nf6 Rh2 Bd6 Nf4+ e2 Rh5 Be5 Rh1 Ng4 Rh2 Ba6 Re6 Bb5 Nh3 Qh4 d8B Nd7 Rg6 Nf8 Nc3 b1R Na2 Qa3 Nc1 b2 Be3 Ra1 Kd2 b1B Bc5 Ba2 Nf4 Bf7 Bc7 Qa4 Bd4 e3+ Kc3 Rh1 Nh5 g1R Qd2 e1B Bh3 e2 Re6 Rf1 Kb2 Rhg1 Qh6 Qa6 Kb3 Bc3 Bc5 e1R Ba3 Rg8 h8B Nh7 Bf6 Rae8 a8B+ Re4 Bd5 Qa8 Bfe7 Rc8 Bac5 Ra6 Bd4 Rh8 Ba3 Rcg8 Re7 Rg7 Be6 Re3 Ne2 c1B Kc2 B1d2 Nc1 Ngf6 Bhf5 Ng4 Bd7 Rg3 Bfe6 Ree1 Rh1 Kg2 f3 Re3 Rh2+ Kg1 Rg2+ Kh1 Re2 Re4 Bg1 Bd6 Nb3 Rgg8 Bd5 Bc1 Rd2 Nf2 Kb1 R3g7 Rb2 B1d2+ Nc1 Ng4 Kc2 Bh2 Re6 Re5 Rf6 Ree8 Re6 Re7 Re1 Bhe5 B5e6
1n1b1N2/4P3/rnNq4/nkbQN2b/1B3R2/n1b1rBbK/R1n1q3/3nN1N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 Kg2 Kc6 e4 f5 h4 b5 d4 g5 a4 f3+ Kg3 f2 e5 b3 h5 c3 e6 f4+ Kg2 c2 a5 f3+ Kg3 b2 a6 b4 a7 b3 h6 Bd6+ Bf4 c1B e7 Nf6 h7 Nfd7 Ra5 Nb6 Be5 Bd2 Bd3 f1Q Rh6 f2 Ba6 Qe2 Rg6 Bc3 Kg2 f1N+ Kh1 g3 Re6 g4 Ra1 Ne3 Bf4 g2+ Kh2 g3+ Kh3 Nc2 Bb7+ Kb5 d5 c5 Ra4 c4 Nf3 g1B Ne1 g2 Bd2 Bgc5 Bg5 g1B Nd2 b1N Ndf3 b2 Bd2 Bg3 d6 Nba3 d7 b1N Re4 Qc7 Bd5 Qd6 Rf4 Rg8 h8N Rg4 Rf7 Re4 Rf4 Re3 Ng6 Bb7 d8N Bc6 Rg4 Be8 Nf8 Bh5 Rf4 B1f2 Nd3 Be1 Nc6 Ba5 Bb4 Nc3 Qd2 Nd1 Ng1 c3 Bf3 Nc8 Nf2 Bd8 Qd5 Nb6 Nd3 Na1 Qf5 c2 Qd5 Bc3 Ne1 c1N Ra6 N1c2 Ra4 N8d7 Ra6 Nb3 Ra4 Rc8 a8N Nb8 Ra7 Na5 Ra6 Nbc4 Nb6 Rc7 Nbd7 Ra7 Nde5 Nb6 Ned7 Nb7 Ra4 Ra6 Nde5 Na5 Re4 N3c4 Ra2 N4a3 Rf4
qnnR3R/4nk2/RPq2Rb1/2Bnr3/3rr1NQ/1K4n1/4N1R1/rBbn3b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 e4 a5 g4 f5 c4 d5 Kc2 f3 b4 a3 e5 h3 c5 h2 b5 d3+ Kb3 a4+ Kb4 d2 b6 f4 g5 d4 e6 f2 g6 f3 g7 a2 e7 h4 c6 h3 c7 a3 Bb2 d3 Qc2 d1R Qc3 d2 Qc4 Bf5 c8R Rh4 Rc7 Qd6+ Kb3 Ra5 Bc3 Re5 Ra7 Rhe4 Rd7 Bg6 Qc7 Qc6 Be2 f1N Qd8+ Kf7 e8R+ Ne7 g8R f2 Ba5 Ng3 Rd4 f1N Kb4 Ne3 Nc3 Ngf5 Kb3 Bh6 Nf3 N3d5 Bd3 Nd6 Bb1 Ndc8 Rf1 h1N Bb4 h2 Ne2 Ng3 Bc5 h1B Rf2 Bg5 Nh2+ Bf4 Rg2 Bg5 Ng4 Be3 Bc2 Bf4 Ra4 Be3 Rc1 a1R Ra6 a2 Bb1 Nef5 Qg5 Nfe7 Qh4 Bg5 Bc2 Bf4 Ra7 Rb1+ Ka3 Rbb4 Rd8 Rbd4 Kb3 a1Q Rh8 Be3 Bd3 Qa5 Rc3 Ra1 Bb1 d1N Ra8 Bc1 Rf3+ Kg7 Rf6 Qa7 Rfd6 Kf7 Re6 Qab7 Ra6 Qa8 Rf6+
2B1k1rB/rBn1b1r1/b2b1N1N/Q4q1q/Rn1nR3/3B1B1b/3P4/1n2r1bK b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 c5 a4 h5 g4 f5 Kg2 b5 e4 c3 g5 c4 g6 h3+ Kh2 f3 a5 f2 e5 h4 e6 b3 a6 b2 e7 c2 a7 c3 g7 f4 Ra2 b4 Ba6 f1Q Bd3 b3 Qe1 f3 Ra1 f2 Qe6 Nh6 g8B Qd5 Be2 Nc6 Ba6 Nf5 Bb7 Nfd4 Qf6 Nb4 Qf3 Qh5 Bh7 Rg8 Bd5 Ba6 Na3 b1N Qd1 b2 Nc4 Na3 Rb1 Nab5 Bde4 Nc7 Ra1 b1N Bb2 c1B Ne3 c2 Nf5 Rg7 Bc3 Ba3 Bb7 c1B Ne2 Bcb2 Neg3 Qd3 Qe1 f1B Nh6 Qdf5 Qe5 Rd8 Rg1 Rc8 Kh1 h2 a8B Bh3 Bf3 Rd8 Bae4 Ra8 Qd5 Ra7 Qa5 Rg8 Qb5+ Ndc6 Bg6+ Qf7 Qc5 Nd3 Qb4 Bhc8 Qa5 Bd6 Kg2 h1R Qf5 Ndb4 Bh8 Bd4 Re1 Rg1+ Kh2 h3 Ra4 Bf2 Qa5 Nd4 Bb7 Bg4 Bd3 Qff5 Re5 Re1 Ne4 Bg1+ Kh1 h2 Kg2 Bf2 Re6 h1R Re5 Rh4 Bc8 Bh3+ Kh2 Re3 Kh1 Rhg4 Bb7 R4g7 Re6 Kd7 e8B+ Kd8 Nf6 Bfe7 Re4 Bg1 Bc8 Re2 Bc6 Re1 Nd7 Ke8 Ba8 Qh7 Bab7 Q7f5 Nf6+
2R1B1r1/R1r5/2r5/B1P2B2/kqQKnbrN/n1NB1qn1/2b3b1/3bbBn1 b - - 0 1 illegal: No proof kernel
N1bqk3/Bqb1qnKB/n3R3/4Qr2/r1B1r1R1/1B3B1P/8/rbN1qb1n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 Kd3 g5 c4 f5 a4 b5 e4 g3 e5 b3 e6 f3 e7 b2 h3 b4 a5 g4 c5 f4 a6 g2 a7 g3 c6 f2 c7 b3 Nc3 b1Q+ Qc2 f3 Bb2 Na6 Nge2 g1R Bc1 g2 Nf4 b2 Nd1 Rh4 Ne2 Nh6 Ra4 Nf7 Ndc3 Re4 Nb5 Bg7 Rb4 Be5 Be3 Qe1 Rh2 b1B Nc1 Bf4 Be2 f1B Ra4 f2 Rc4 Bg4 c8B Bc7 Be6 Qb8 Bf5 Qb7 Bh7 Bc8 Rc6 Rh1 Re6 g1Q Rg2 Qh2 Rg4 Qd6 Nc3 Qd8 Na4 Qeb4 Nb6 Qc5 Kd2 d3 Qc3 d4 Qa5 Qa3 Qe5 Rg1 Bd1 Qad6 Bb3 Q6d7 Rh4 Rg5 Rg4 Rf5 Kd1 d2 Bc4 Bg2 Ke2 d1N Kd2 f1Q Bf2 Rb8 a8B d3 Bc5 Nf2 Kc3 d2 Be3 Qbd5 Bb7 d1R Na8 Qh1 Ba7 Bf1 Bb3 Ra4 Bc4 Qdg2 Bf3 Rbb4 Bb3 Re1 Bc4 Ra1 Bb3 Rba4 Bc4 Nd6 Kd4 Re4+ Kd5 Qhg1 Bb3 Nh1 Bc4 Kf7 e8B+ Kf8 Bb3 Q7e7 Bb5 Qe3 B5c4 Qe1 Bfe2 Re3+ Kd4 Qb7 Bf3 Ke8 Qe4 Rf8 Ke5 Nf7+ Kf5 Re2 Kg6 Re3 Qf5 Re4 Qd5 Nh8+ Kh6 Rf5 Qe5 Nf7+ Kg7
1Q2n1b1/5R2/Kb2kBBp/1B2q3/1r1b2rB/1b4B1/N2Pnq1N/2R1qnbr b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 g4 e5 f4 a5 b4 c5 f5 c3 f6 e3 Kd3 c4+ Ke2 c2 b5 h6 b6 h3 f7 c3 Kd3 e4+ Kc4 e2 Kb5 e1Q b7 a3 g5 e3 g6 h2 g7 e2 Bb2 c1N Nh3 c2 Nf2 a2 Bd4 a4 Nd3 a3 Bg2 Qe7 Nb4 Ra4 Bc5 Nf6 g8B Nh5 Bb6 Qf2 Bc5 e1Q Na6 Q7e5 Bf3 Rb4+ Ka5 Ke6 Be4 Ng3 Nc3 Nf1 Nb5 Nd7 b8B Ne2 Rc1 a1B Be7 a2 Bf6 Bd4 Bg6 a1B B8h7 Bfc5 f8B Rg8 B8e7 Ba7 Be8 Bdc5 Bhg6 Bad4 Bh4 Bb7 Bef6 Bd5 Rg1 h1B Rg3 Qe4 Rf3 Bb3 Bbg3 Qe5 Rf5 Bhd5 Rf3 Rc4 Nb4 Bab6+ Ka6 Rg7 Na2 Rb4 Be4 Rg5 B4g6 Rg4 Rf5 Ng1 Qf3 Ne2 Qh1 Bdc4 Qa8 Bd5 Qb8 Bdc4 Bg7 Nf6 Bc6 Ne8 Rf7 Bd5 Bgf6 Qd6 Nbc3 Qe5 Bb5 Bdc4 Nd1 Bd5 Ra1 c1R Ne3 Be4 Bh5 Bh7 Bg6 Bg8 Rb1 Rd1 Rc1 Qf3 Nc4 Bg1 Ne3 Qff2 Bfg5 Bd4 Bf6 Re4 Ng4 Rf4 Nh2 Rg4 Be7 Ne3 Nf1 Bh2 Ra1 Rb1 Bf4 Qc1 Ng3 Qcg1 Bef6 Rf1 Rc1 Qe1 Rc2 Qgf2 Rc1 Rh1 Nf1 Bg1 Nh2 Nf1 Bfg3
RB3r2/nK2RP1k/4QNrb/rBrn4/1n1p1b1B/qqN2r2/4b1q1/5BB1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 f4 Kg6 c4 e5 b4 a5 h4 d5 b5 e3 Kd3 e2 f5+ Kh7 h5 e1B h6 g5 b6 a3 b7 g3 f6 a4 f7 g2 c5 a2 c6 a3 c7 e4+ Kc2 e3 Kd3 g4 Bb2 e2 Nd2 g3 Nb3 Qe7 Nh3 g1R Nc1 g2 Qc2 Bg3 Qc4 e1R Nb3 Bg4 c8B Nf6 Qb5 Nc6 b8B Re3+ Kc2 d3+ Kc3 Rf3 Nc1 Na7 Kd4 d2 Qe8 Bf4 Bca6 Rg8 Bac4 Rg5 Nf2 d1Q+ Bcd3+ Rg6 Ne2 Qb3 Nc3 Bg7 Re1 a1R Nfe4 a2 Bb5 Qea3 Qe6 Rc1 Re2 a1N Rh2 Rc2 Bc1 Rh1 Be3 g1Q Rhg2 Qh2 Bg1 Qh3 Rgf2 Qg2 Re3 Rc1 Ra2 Rh5 Re1 Qaa4+ Kc5 d4+ Kb6 Nc2 Ra3 Nb4 Kb7 Nfd5 Ra1 Qaa3 Nf6+ Kh8 h7 Bgh6 Qf5 Rc2 Re7 Rc1 Qe6 Rf5 Nd1 Rc5 Nc3 Bh5 Nfe4 Kg7 h8B+ Kh7 Bf6 Re5 Bh4 Bg4 Bc7 Rf8 Ra2 Rg3 Bb8 Be2 Ra1 Rf3 Nf6+ Kh8 Qf5 Qc1 Na2 Nc7 Bh2 Nac6 Ng4 Rc4 Qe6 Kh7 Nc3 Reg5 Ra4 Qca3 Ra8 Na7 Ba4 Ra5 Bb5 Rc5 Bg1 Ncd5 Nf6+
q5B1/b3B3/b3RrNk/2b1QPrb/1b2Nn2/3r2bR/1bB1Bp2/n1q2B1K b - - 0 1 illegal: No proof kernel
2qr2R1/Rp1RPrr1/bQ3k2/2r4R/3rnr2/RK1Bb1q1/4rN1q/Bn5N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 g4 h5 c4 d5 Kc2 f5 a4 d3+ Kb2 b3 e4 f3 g5 h3 e5 d4 c5 h4 g6 h2 e6 f4 a5 h3 c6 f2 a6 f3 c7 d2 a7 d3 g7 Na6 Ne2 Bd7 c8R Kf6 e7 Rh7 Ra2 Bb5 Ng3 Nb4 Na3 Ba6 Nb1 Nd5 Qc2 d1R Nc3 d2 Ka3 b2 Nb1 Nc3 Bb5 f1R Rc5 f2 Bd7 Rde1 Rd5 d1R Bh6 Rd4 Be6 Re2 Rh5 Qc8 Nd2 b1Q Bb3 Qe1 Qc1 Nb1+ Kb2 Rg1 Bc4 f1R Rd5 Rff4 Kb3 Rb8 a8R Rgg2 Rg1 h1R Rd7 h2 Qb2 Qf2 Bd3 Qe3 Ngf1 Qg3 Ra3 Rgf2 Rg2 Rg1 Ra7 h1Q Rh2 Re5 Nf3 Rfe2 N3d2 Rc5 Rh5 Qhh2 Ne4+ Kf7 Rhd5 Nf6 Nf2 Ne4 g8R Kf6 Rh5 Rf7 Bg7+ Ke6 Be5 Bh6 Bc7 Bg5 Ba5 Kf6 Bc3 Qf3 Ng3 Bh6 Nf5 Rgg7 Ng3 Qfg2 Ngh1 Qgg3 Bc4 Bg5 Bd3 Qc7 Nh3 Rg4 Ka2 Rd8 N3f2 Bd2 Qb4 Be3+ Kb3 Qc8 Ba1 Rf4 Qb6+
2n4b/1Qqb2k1/K1Bq1BBR/2q2Bqp/R3n2N/q1qBn3/3Pb3/1r1N2r1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 c5 Ke2 b5 a4 f5 g4 Kf7 e5 h5 g5 h3 e6+ Kg7 g6 h2 e7 c3 e8B f3+ Ke3 c4 a5 f4+ Ke4 c2 a6 f2 a7 f3 Ke3 b3 Bd3 f1N+ Ke4 f2 Ra2 b2 Qf3 b4 Qd1 b3 Ra1 c3 Qe1 Na6 Na3 b1Q Nc4 b2 Na3 Ne3 Bd7 f1B Kd4 Qc7 B3f5 Be2 Nb5 Nc5 Ra3 Ne4 Nf3 Qa1 Rf1 h1Q Be8 b1Q Bb2 c1Q Ra4 c2 Nc3 Ne7 Nh4 Rb8 a8B Qg1 Bac6 Rg8 Nd1 Bd7 Rf3 Qgg3 Qh1 Nc8 Rf1 Qa3 Bf7 Kh6 g7 Qg5 B7g6 Qba2 Bc3 Qe6 Ba1 Rb1 Bb2 Rh8 g8B Kg7 B8h7 Rg8 Bc3 Qcb2 Rf4 c1Q Qf3 Nc5 Bd3 Qbb3 Rf6 Ne4 Bf5 Qb5 Bhg6 Qed6+ Bd5 Kh8 Be8 Nc5 Ra7 Qh6 Ra4 Rg1 Re6 Qg5 Rh6+ Kg7 Beg6 Kf6 Qh1 Bg7 Ba1 Qbc6 Qf3 Bh8 Qh1 Nc2+ Kc4+ Qcb2 Bf3 Q6b6 Ba8 Kg7 Qc6 Qbe5 Qb5 Qef6 Bc6 Ne4 Qb4 Qba7 Kb5 Qac5+ Ka6 Ne3 Qb7 Qb8 Be5 Qbc7 Bh2 Qfc3 Be5+ Kg8 Bf6 Kf8 Bd8 Kg7 Bf6+
1BB1Bqk1/1BR1n1r1/4b3/1K4P1/1b1br1b1/rrpN1r2/1b1q1RQn/N5B1 b - - 0 1 illegal: No proof kernel
1q1rqn1r/2p1kb2/4NN2/3Q1P2/3qBn1R/1q2nnB1/n1N1q3/3NNRbK b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 h5 d4 b5 a4 e5 f4 h3 Kf2 e3+ Kf3 h2 Kg2 e2 d5 e1Q d6 c3 a5 h4 f5 h3+ Kf3 e4+ Kf4 c2 a6 b3 g5 b2 d7+ Ke7 a7 b4 g6 e3 Kf3 e2 g7 b3 Be3 c1N Qd3 Nh6 Qc3 Na2 Qd4 Qe8 d8N Ng4 Bd2 Be6 Qe3 Nd7 Qe4 Ne3 Qc6 Bf7 Ne6 Rd8 Nc3 b1Q a8N b2 Bg2 Qf1+ Kg3 e1N Nf3 Qe2 Nb6 Nd3 Nc4 Nf4 Rf1 h1Q Qd5 h2 Ne1 Qg1 Nd1 h1Q Na3 Qh7 Bc3 Qg8 Be5 Qbc2 Rc1 Qb3 Rc4 b1N Nac2 Nd2 Ra4 Nf3 Re4 Nh4 Rd4 Qgf2+ Kh2 Qb8 Kh1 Nf3+ Bh3 Ng6 Bh2 Nf4 Bg2 Qh4 Rb4 Qf6 Ra4 Qd4 Rb4 Kf6 Rc4 Bc5 Ra4 Ke7 Rc4 Bh5 Bg3 Nf8 Rb4 Nh2 Be4 Nf3 Ng5 Qe6 Rc4 Qeb6 Ne6 Qb3 g8N+ Kf7 Nf6 Ke7 Rf2 Ba7 Rh2 Bg6 Rh4 Bf7 Ra4 Nc3 Ra1 Na2 Rb1 Nc4 Ng2 Qdc3 Nb2 Bg1 Rf1 Qd4 Nd1 Ne3 Nge1
1R1rb1R1/rp3k2/2R2b1P/2r1QK2/1b3bB1/Nnr1BR2/2N1rq2/1q2n1bR b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 h4 d5 a4 e5 c4 e3 Kd3 e4+ Kc2 b3+ Kb2 d3 Kc3 g3 Kd4 g2 Ke5 d4 f4 d2 f5 d3 f6 b2 c5 g4 a5 e2 h5 e1R c6 g3 h6 e3 a6 e2 a7 Bg7 c7 Ne7 Ra4 Nd5 Ra6 Nd7+ Kf5 Ne3+ Kf4 Nc5 Ra1 Kf7 Ra2 Qf8 Ra5 Nc2 Ra2 Bd7 c8R Be8 Ra4 Nb3 Nc3 b1Q Nh3 g1B Rac4 g2 Kf5 Be3 R4c6 g1B Nb5 Bf4 Nf2 Rg8 Ng4 Qc5+ Ke4 Qf2 Rb8 Bh8 Bh3 Rg5 Na3 Rc5 Ne3 Rc3 Bb2 Bg7 Qc1 d1R Bg4 d2 Kf5 Rc5+ Be5 Rc3 Qb2 Rc1 Bc7 d1R Bb6 Rd8 Qa1 Red1 Qb2 Ne1+ Nec2 R1d6 Bc5 Re6 Be3 Re4 Na1 Rc5+ Qe5 R1c3 N1c2 Nf3 Bd2 e1B Bc1 Re2 Be3 Kf8 f7 Bf6 Qd5 Ke7 f8R Bd2 Rg8 Ne1 Qe5+ Kf7 Rg5 Rcd3 Rgh5 Bb4 R5h3 Rdc3 Rf3 Rd6 Rcc8 Ra6 Rc6 Raa5 Rd8 Rb8 a8R Rc8 Rb8 Ra7 Rdd6 Rd8 Re6 Bg7 Rg6 Bf6 Rg8
4b1r1/bqBBn3/rNq4r/1B3B2/1n1n1k1r/qp5R/Q1r1n1PK/B1R3N1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 a4 Kf7 c4 Ke6 f4 Kf5 Kf2 d5 a5 h5 a6 b5 a7 e5 c5 e3+ Kf3 b3 c6 d3 c7 b4 Nh3 d2 Nf2 h3 Kg3 e4 Ba6 d4 Qf3 d1N Rf1 h4+ Kh2 e2 Nh1 e1N Bc4 b2 Na3 b1Q Qb3 e3 Be2 d3 Rf2 d2 Qa2 Bc5 Bf1 e2 Nc4 Na6 Nb6 Qd7 Rf3 Qc6 Nc4 Ne7 Nf2 Nc3 Nh1 d1Q Qb3 Bd7 c8B Qdd6 Na3 Nc2 Nf2 e1R Qa2 Re2 Nc4 Rg8 Bb2 Nd4 Nb6 Rc2 Bb5 Nce2 Bc3 Qb2 Rc1 b3 Re3 Qa3 Ba1 Qb7 Rc3 Qe6 Rf3 Be8 Bcd7 Nb4 Rg3 Kf6 f5 Ke5 f6 Qec6 f7 Kf4 f8B Rd8 Bf5 Rd6 a8B Rdg6 Nd7 Ba7 Re3 Qcc8 Bg7 Ra6 Nb6 Qbc6 Bb7 Qb8 Bbc8 Qbb7 Bf6 Nc3 Kg1 h2+ Kf1 h3 Bcd7 Nce2 Rg3 Ned5 Bd8 Ne7 Rc3 Ng1 Rg3 h1R Rc3 h2 Nh3+ Ke5 Rg3 Ne2+ Ng1 Kf4 Rh3 Rf8 Re3 Rh8 Kf2 Rg8 Nf3 Rd1 Rc3 Rd3 Ng1 Re3 Rd3 h1R Rc3 Re6 Rf3+ Kg5 Rd3 Rh4 Rh3 Nc3+ Kg3 Nce2+ Kh2 Kf4 Bb2 Reg6 Ba1 Rgh6 Bc7+
1r1N1b1r/brrRNK2/q1NN4/1N1R4/1BQ1pb1q/P2r3b/q1B2kn1/5n2 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e3+ Kd3 Kf7 Kc4 Kf6 Kd5 Kf5 c4 Kf4 h4 e5 c5 b5 h5 g5 c6 g3 a3 g4 f3 e4 h6 g2 h7 Kg3 c7 b3 f4 b2 f5 b4 f6 d3 f7 d2 Bc4 b3 Nc3 b1Q Bf1 e2 Ra2 e1R Rh5 b2 Be2 Qh4 Qa4 d1R+ Bd3 Bb4 f8N Nh6 Ng6 Kf2 Nf3 g3 Ke5 g1B Qa6 d5 Qd6 d4 Qc6 g2 Ra1 Na6 Ng5 Bh2+ Kf6 Rg8 h8N Nf5 Qd7 Nc5 Bf1 d3 Qh7 d2 Qe7 Nb3 Qc5+ Ne3 Be2 Qa2 Qb5 b1R Bd3 Bh3 c8N Bf8 Ne5 Rb8 Nhg6 Rh8 Kf7 Bf4 Ne6 Rb2 Nd8 Rc2 Ne2 Rc7+ Nge7 Rh1 Bb2 Rb1 Qc5 d1Q Bc2 Qf1 Nc3 Qa6 Nec6 Nd2+ Qc4 Rhd1 Bc1 R1b7 Nb5 Ndf1 Bd2 g1B Ba5 Kf3 Bb4 Ng2 Rb1 Rd5 Rd1 Ba7 Rg5 Kf2 Rf5 Re5 Rd7 Rd5 Ncd6 Rd3 Rd5
8/2bB1RBN/1Q1n2qP/3r2qn/q1N1R2B/1krnBp1K/b1b1bq2/1B1q4 b - - 0 1 illegal: No proof kernel
R2Q3K/P2R4/n3r1Bp/2nrr1Nq/1B1q3R/bk1Rb1rb/n1r5/1n3RN1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Ke6 a4 d5 f4 b5 g4 h3 g5 e3 Kf3 b3 Kg4 e2 Kh5 e1R a5 h6 Kg6 h2 c5 d3 c6 b4 a6 d2 c7 b2 a7 d4 f5+ Kd5 f6 e5 f7 b3 Bh3 Kc4 Ne2 d3 Bg4 e4 Ng3 e3 Ra5 e2 Rd5 Nf6 Bh3 Na6 Nf1 Ne4 Ra5 Ba3 Kg7 Qd4+ Re5 Nec5 g6 Re8 f8R Re6 Nc3 b1R Kh8 Rb2 g7 Rc2 g8R b2 Ne4 b1N Nfg3 Kb3 Rg7 Rg1 Rf4 e1B Ne2 Rg3 Rd7 Bf2 Bf5 Be3 Rhf1 h1Q Ng1 Qh5 Ng5 Rb8 Re4 Rb5 Bg6 Ra5 Rh4 Rb5 Qe2 d1N Bd2 Ndc3 Qd1 Na2 Bc3 d2 Bb4 Rf6 Red5 Re6+ Rg7 Bd7 c8R Ra5 Ra8 Bc8 Qf3 d1R Qf8 Re1 Rd8 Re5 Rd6 Bh3 Qd8 Rb5 Rb7 Rd5+ Rg7 Rb6 Rd7 Re6 Rd6 Bec1 Rd7 R1e5 Rgf7 Be3 Rd1 Qd2 Rff1 Qd4 Rd3+
BRb1nb2/q4n1q/7r/1rB2k2/N1nRn2q/pP1r1r1N/1B2Q1B1/4Bb1K b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 c4 Kf7 h4 Kg6 f4 e5 Kf2 a5 Kg2 d5 h5+ Kf5 b3 g5 c5 g3 c6 d3 c7 e3 h6 d4 h7 e2 Na3 e1N+ Kh3 d2 Nc4 g2 Kh2 d3 Qc2 d1R Qe2 e4 Ra2 e3 Ba3 g4 Nb6 g3+ Kh3 d2 Qa6 e2 Qc4 Nf6 Qf7 Qd7 Bc5 a3 Nc4 a4 Rh2 Na6 Bb6 Nc5 Ra1 a2 Nf3 g1R Qe8 g2 Rc1 a1Q Ng5 Ned3 Nb2 e1Q Qe2 Rb8 Ba5 Nce4 Rc4 Ne8 Rd4 Rb5 Bb4 a3 Na4 Ne5 Rh1 Qc1 Kh2 Nf7 Nh3 Qh4 Bc3 Qc2 Bb2 Rg8 h8B Rg6 Bc3 Rh6 Bb4 Ba6 c8B Qc7 Bc5 Qa7 Bb7 Qde7 Ba8 Bc8 Rc4 Qec7 Bb2 Qd7 Bf2 Qd3 Be1 Qb1 Qf2 Qd3 Rd4 Qc2 Bd3 Rf1 Qe2 g1N Bc4 Qb1 Bcd5 Nf3+ Kg2 Qc2 Rh2 Rf2+ Kh1 N3e5 Rg2 Rf3 Rg8 Nc4 Rh8 Kg4 f5 Qb1 f6 Kf5 Qe3 Rc1 Qf2 d1B Qe2 Rcc3 Bdc6 Nfe5 f7 Rcd3 Qd2 Be2 Qd1 Bb4 f8B Nf7 Bc5 Bf1 Qe2 Qc2 Bb6 Bf8 Bc5 Qb1 Rh7 Ng3+ Kh2 Rf2+ Kg1 Ng5 Qe7 Rd1 Qe5+ Kg6 Re7 Nf7 Bh1 Rf3 Bg2 Qbe4 Rb7 Rdd3 Qe7 Qf5 Qe3 Ne4 Rb8 Kf6 Kh1 Qh7 Qf2 Kf5 Qe2
4R1nN/2bnb3/1rn2bN1/n1B1QrN1/r1k1bN1R/1P2pBK1/1q6/r1N2r2 b - - 0 1 illegal: No possible last move
5kQN/1K1n2n1/2NRr1b1/1P1R1b2/4n3/1N1q1bBB/1Nr1nbpr/1rr4N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 d5+ Kb5 a5 e4 g3 c4 g4 b4 g2 h4 g3 h5 d3 h6 f3 h7 d2 c5 f4 c6 a3 e5 f2 e6 a4 e7 a2 c7 d4 Kb6 d3 b5 f3 Rh3 a3 Nc3 Bf5 Rh4 Nd7+ Kb7 Nh6 c8N Ra6 Be2 f1N Nh3 g1N Nf4 g2 Ncd5 f2 Qc2 d1R Rb1 a1R Bg4 d2 Ne3 a2 Ne2 Ng3 Bh3 f1B Nd4 Ne4 Nc4 Re6 Rh5 Bd3 Na7 Ne2 Nb3 Rg1 Ba3 Rc1 Nb2 d1B Nc6 Kf7 e8N Bc5 Nf6 Bf2 Bd6 Kg7 Bc7 Kf8 Bh2 Bg6 Re5 Nf5 Nh5 Ng7 Bg3 Bf5 Rd5 Bg6 Qd2 Rc2 Qh6 Bf5 Rc1 Rb1 Qg6 a1R Rd6 Rd2 Rc5 Rc2 Rcd5 Rbc1 Be5 Rab1 Ng3 Nf4 Qh5 Bf3 Nh1 Ne2 Qh4 Rg8 h8N Bg6 Nf7 Rh8 Bg3 Bf5 Qh5 Rh7 Qg6 Rh6 Qh7 Rh5 Bg4 Rh2 Nh8 Bg6 Rd4 Qb6+ Ka8 N4c3 Bh3 Bdf5 Rd3 Ne4 R3d5 Qe3 Kb7 Qd3 Qg8+
7K/kbnqnB2/1R1qq3/PR1bp3/1R6/1Rrq1N1Q/2b1Nq1B/r1R3bq b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc7 g4 Kb6 c5+ Ka7 c6 b5 f5 e5 f6 d3+ Ke3 h3 f7 d2 g5 h2 g6 b3 g7 b2 c7 h4 Nf3 b4 Nc3 b1B Ra2 d4+ Kf2 h3 Kg3 d3 Ne1 b3 Rc2 b2 Be2 e3 Nf3 Na6 Qg1 d1Q Qg2 d2 Bc4 Qd7 Ne2 Ne7 g8R Qe6 Rg4 Bb7 c8R Nc7 Rc3 Bc2 Rb8 b1Q Rb3 Bh6 Kh4 Rc8 Rf1 h1Q Kh5 h2 f8R Bg5 Bd5 Bh4 Rh8 Bf2 Qh3 Bg1 Rb6 Qb5 Rb4 Qbd7 R6b5 Qdd6 Rh6 Qdd7 Rf6 Qdd6 Kh6 Qdd7 Ng3 e2 Kg7 e1Q Ne2 Qf2 Ba2 Bd5 R8b6 Qdd6 Rb3 Bb7 Rf4 Qdd7 Rfb4 Qdd6 Bb2 Qb1 Re1 d1Q Bd4 Qd3 Be3 Qbd1 Bf4 Qdd7 Rf1 Q3d6 Bg3 Q1d3 Rd1 Ne8+ Kh8 Rc3 Rc1 Nc7+ Kg7 Rh8 a5 Rh4 Rb2 Rd4 R4b3 Ra4 Kh8 Ra3 R3b4 Bd5 Bc4 Ra1 R2b3 Qhg2 Ra4 h1B Rab4 Qh2 Bf4 Bg2 Bg3 Qh1 Bh2 Bb7 Ne1 Bgd5 Nf3 Qde3 Bd3 Qd4 Bg6 Qd3 Bf7
B3nB2/bbBpRbkN/2RQ4/1r2q1b1/2rnP1B1/3rNbB1/3n2nK/3r4 b - - 0 1 illegal: No possible last move
6rB/1n4Bk/1r1NB1q1/2R1P3/2q2Bb1/bbpq1nqq/1Qp3R1/K3B1nN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 h4 c5 e4 a5 b4 f5 d4 Kf7 Kd2 Kg6 Kc3 a3 e5 a2 Kb2 g3 h5+ Kh7 d5 g5 d6 f3 b5 f2 h6 a4 d7 c3+ Kc2 f4 b6 g4 b7 c4 Qe2 a3 Nh3 g2 Rh2 g1Q Nd2 f3 Qe1 g3 Rh1 g2 Nf4 Ne7 Ne4 Ng6 Qd1 Rg8 Rh4 Na6 b8B Nc5 Rh5 Nh4 Bd6 Rb8 Be3 Nb7 Kc1 c2 Qd4 Qb6 d8B Bg4 B6c7 Qg6 Nh3 Qh2 Bdg5 g1N Bf6 Qg3 Ba5 Bc5 Rb1 a1Q Nd6 a2 Be1 Qc3 Rb5 Qcd3 Qb2 Ba3 Bg2 f1B Rc5 f2 Bf4 Nhf3 Rg5 Be2 Bg7 f1Q Nf2 Be6 Bh1 Qfh3 Rg4 Rbc8 Bg2 Rc6 Nh1 Rb6 Bf1 Nh2 Rg5 B2g4 Bg2 Bf7 Bd5 Nhf3 Be6 Be8 Rf5 Ba4 Rh5 Bb3 Rh4 Qhf1 Rh2 Qfh3 Rd2 Bb4 Rg2 a1Q+ Qb1 Qa7 Kb2 Ba3+ Ka1 c3 Qa2 Qaa6 Qb2 Qf7 Bd7 Qac4 Be6 Kg6 h7 Qff5 h8B Kh7 Qa2 Qg6 Qb2
2BQ4/R3b3/K2B4/1P2N2b/nr1nq2B/1b4Nb/kq1rpBbp/nq2R1B1 b - - 0 1 illegal: No proof kernel
n1brr2n/3B2NK/1p3qNB/1qR3R1/1n1B4/Qn5p/1P2b1r1/nBb1k2B b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 a5 c5 a6 cxd4 Kd2 Qa5+ Ke2 Qxa6+ Ke1 Qa2 Kd2 Kf7 f4 Kf6 g4 d5 c4 e5 c5 h5 g5+ Kf5 g6 a5 g7 e3+ Kd3 a4 c6 e4+ Ke2 Kg4 c7 Kg3 f5 d3+ Ke1 b6 f6 d4 f7 h3 Nd2 h4 Rh2 a3 Ndf3 e2 Kd2 e1N Qc2 e3+ Kd1 e2+ Kd2 Qd5 Qc5 a2 Qc2 Nh6 g8B Na6 Qb3 Nc2 Ne1 Ncb4 Nc2 e1N Qc3 Nf3+ Kd1 d2 Ke2 d1R Be3 Nd2 Bg2 Nb3 Nf3 Rg1 Rc1 a1N Bh1 Qb5+ Qd3 Bd6 f8B Nf7 Bh7 Bf4 Bh6 Re8 Ne5 Nh8 Ng6 Rd8 Rf2 h2 Rff1 Bg5 Rf5 h3 Rc5 Re8 Rf1 Rg2+ Rf2 Be6 c8B Nc7 Bd7 Bf4 Rc3 Rad8 Rc5 Qc6 Qa6 Na8 Qa3 Bf5 Bg5 Qf6 Bh6 Nc1+ Kd2 d3 Nd4 Ncb3+ Kc3 d2 Kc4 d1Q Ne6 Qf3 Bd4 Qc6 Ng7 Bc1 Kc3 Be6 Rf5 Qb5 Rg5+ Kf3 Nh4+ Ke2 Bb1 Bc4 Ng6 Ke1 Be5 Na5 Kd4 Be2 Ke4 N5b3 Nh5 Qd6 Kf5 Qd4 Kf6 Qf4+ Kg7 Qf6+ Kh7 Rg4 Bf3 h1B Ng7 Rg3 Bfg4 Bb7 Bf3 Bc8 Bh1 Rg2 Bd4
n3K1B1/1Nb2p1b/4Rr2/q1Rr2b1/RR3R1p/brn1b1qQ/3NP1qB/3k4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Ke6 Ke4 h5 d4 c5 b4 a5 g4 a3 g5 h3 b5 c3 b6 a4 b7 h4 g6 f3 g7 c4 Nd2 c2 Rh2 c3 Qe1 f2 Bb2 c1B Ra2 c2 Rh1 h2 Nh3 Na6 b8R Qa5 Bg2 f1R Qg3 Nf6+ Ke3 Kf5 g8R Rh5 d5 Nc7 Kd4 Ne4 d6 Nc3 Rg1 h1Q Rb4 Rb8 d7 Na8 Nb3 Bg5 d8R c1B Re8 Bce3+ Kc4 Bb7 Nf2 Be4 Qh3+ Kf4 Re6 Bh7 Be4 Qg2 Nc5 Bd6 Rc8 Bc7 Ra1 a2 Nb7 a3 Bc2 Qg3 Ne4 Rf2 Raf1 a1Q Nd2 a2 Ba3 Qb2 Ra4 a1B Bd6+ Qe5 Bf5 Qb6 Rb1 Bb2 Rgf1 Ba3 Rbb4 Qg2 Be4 Qa5 Bc2 Bcd8 Rc5 Bc7 Bd3 Rf3 Be4 Bd4 Bg6 Ke3 Be4 Qg7 Bh2 Qe5 Rf2 Qeg3 Rf1 Rf6 Rf4 Q2f3 Bg6+ Kf2 Be4 Ke1 Bg6 Be3 Bb1 Ne4 Kd5 Qfg2 Kc6 Kd1 Kd7 Nc3 Ke7 Rd8 Bd3 Rd5 Ke8 Rhh6 Ree4 Rb6 Re6 Rf6 Rbe4 Rb3 Reb4 Bf5 Be4 Bg4 Bg6 Bf5 Bh7 Bd3 Bg8 Bf5 Qg4 Bh7 Qh3
n1N1rr2/2BR1b1q/R4R1n/1r1QnqR1/B2bk2n/q4pb1/1RPK1p1N/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 e4 Kf6 h4 Ke5 a5 d5 h5 f5 a6 g5 a7 b5 h6 b3 h7 f3 Rh2 f2+ Ke2 f4 Qd3 b4 Nc3 g3 Rh1 b2 Na4 b1Q Qa6 g4 Ra2 g2 Qg6 b3 Nc5 b2 Na6 g3 Kd1 d3 Rh6 d4 Qe8+ Qe7 Rg6 d2 Bb5 Be6 Rh6 Nc6 Ba4 Qa1 Nc5 b1R Rh2 Nh6 Rh4 Rb5 Rg4 Bf7 Qd7 Re8 Ne2 g1B a8R g2 Rb2 Qa3 Ra5 Bg7 Qd8 Rhf8 h8R Bh2 Ng1 Bg3 Rh7 Qh4 Ke2 d1N Kd2 d3 Ra6 Nc3 Nb7 Nd5 Nd6 Nc7 Nc8 Na8 Qg5+ Kd4 e5 Ke4 e6 Ne5 Nf3 g1N e7 Qh5 Nh2 Ngf3+ Kd1 Nh4 Kd2 Bf6 Qg8 Qg6 Rg5 f3 Rg7 Qf5 R7g6 Rd8 e8R Bg7 Re7 Rde8 Rd7 Bf6 Rb3 Bh8 Rgf6 Qh7 Kc3 d2 Bb2 d1Q Bc1 Bc4 Bf4 Qd5 Qe6 Qdc5 Kd2 Bd5 Qd6 Bf7 Rb2 Qd5+ Kc1 Qe6 Kd2 Qef5 Qc5 Nd3 Bc7 Bg7 Rfd6 Bd4 Rf6 Ne5 Qd5+
1K5R/1b4b1/2kpB1r1/2BBnQ2/1qBrn1nq/2R2P1N/2Bp2nr/bq3N2 b - - 0 1 illegal: No possible last move
b1n4B/b2Knp1B/5Rq1/4rn1p/4Q1nk/1r5B/Pr1NbB1q/2B2RqN b - - 0 1 illegal: No proof kernel
2Br3b/n2n4/bN3Pn1/1p1KN1Nn/3nRkr1/2q1R1N1/Q2bpB2/2bNb3 b - - 0 1 illegal: No possible last move
N2R2k1/3P3r/1nRnQ2p/1bB1nnr1/1b2Bp2/1q1b2Bb/1Nn2B2/2bB3K b - - 0 1 illegal: No possible last move
3N4/bnbN3K/rRbR3N/2Q1n1Nr/1rN1k3/np2B1pB/n2Pq1r1/6n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 h4 g5 a5 c5 h5 b5 h6 f5 a6 g3+ Kf3 g4+ Kg2 c3 h7 c2 a7 c4 Ra3 b3 Ra1 c3 Ra6 b4 Rh5 f3+ Kh1 f2 Kg2 b2 Qe1 b3 Bd3 f1R Rah6 Nc6 Qd1 Rf4 Bf1 Bd7 Rg5 Bc5 Rhg6 Qe8 Rd6 Nf6 Nh3 Na5 Na3 b1N Bb2 c1N Qc2 Bc6 Rg6 Nd7 Ng5 Na2 Ba1 Rg8 h8N Nb7 Qc1 Bd4 Rgf6 c2 Rh6 Rc8 a8N Rg7 Nb6 Ra8 Bc3 Ra6 Bb4 Bf2 Bc5 Rh7 Rhf6 Rh5 Be3 Qe6 Qd1 c1B Qc2 Bb2 Qc5+ Bd5 Rf8 Bc3 Rb8 Ba5 Nhf7+ Kf6 Rh8 Ne5 Nd8 Bc6 Nac4 Na3 Nd7+ Kg6 Rh7 Bc7 Rh8 Nf3 e5 Re4 Na5 f4 Nc4 Kf5 Rh6 Qe8 e6+ Ne5 e7 Rd4+ Nf3 Ke4 Rhf6 Bb5 Rb6 Bc6 Rd6 Bg1 Na5 Rb4 Nc4 Qf8 e8N Qe7 Ng7 Qe8 Nh2 Bf2 Nge6 f3+ Kh1 Bg1 Bh3 f2 Kg2 f1R Ng5+ Kf5+ Nhf3 Rb1 Ngf7 Ke4 Nh6 Bf2 Rf6 Re1 Rd6 Re2 Kh1 g2+ Kh2 Bg1+ Kg3 Qe7 Bg5 Bd4 Be3 g1N Ng5+ Kd3 Kf4 g3 Kf5 Rg2 Rg6 Qe8 Kf6 Qe6+ Kg7 Qg4 Qa5 Qe2 Kh7 Bc5 Rb5 Ba7 Rb6 Qf1 Qc5 Qe2 Nf3 Ke4 Re6 Rf5 Rd6 Rh5 Ng5+
K2n4/1R1B2q1/Nr4qB/1N6/pbkqq2B/1pbr2P1/qnb2RqB/1B2Q3 b - - 0 1 illegal: No proof kernel
r1Q5/2r1Br1R/4nP2/4qp1K/B1nrk2B/6Rr/1q2rbpN/bB1bN1B1 b - - 0 1 illegal: No proof kernel
bb2Rn2/1r2q1Q1/2PB1NNb/1N1BR2K/2kpq1Nn/p3r2b/3b2b1/4n1N1 b - - 0 1 illegal: No possible last move
B1r5/1NpBr3/1pnbbk1K/1B4Q1/1PR1b1Bb/1n6/bnR4B/1qn3Nr b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 e5 c5 exf4 c6 a4 Qb3 axb3 Nh3 dxc6 Ng1 c5 Bb2 c4 Ba3 Bh3 Bc1 Bc8 Kf2 Ke7 Kf3 f5 a4 h5 e4 b6 g4 b2 d4 c3 d5 c2 d6+ Kf6 d7 h3 a5 h2 a6 h4 a7 h3 Be3 c1B Ra5 Na6 Re5 Bd6 Bd3 Ne7 Bb5 Re8 Bc5 Nc6 Na3 b1B Bd4 Ba2 Be3 Nc5 Nc4 Re7 Na5 Nd3 Nb7 Nb2 Rc5 Bd2 Rc3 Be1 Rc2 Bh4 Bd2 Qe8 d8Q Qg6 Bc1 Rb8 a8B Bce6 Rc4 Rc8 e5+ Kf7 g5 Kg7 Ke2 f3+ Ke3 f2 Kf4 f1N Bd2 Qh7 g6 Ng3 Be1 Qh5 Bc3 Qd1 Bd2 Qb1 Be1 Ne4 Bg3 Nd2 Rc2 Nb3 Qg8+ Kh6 g7 Kg6 Qd8 Nc1 g8B Bd7 Bd5 Be6 Bf3 Kg7 Bg4 Kf7 Ke3 f4+ Ke4 f3 Kf4 f2 Rc4 Re8 Qg5 f1N Rc2 Nd2 Rc4 Ndb3 Rc2 Bc4 Kf5 Re7 e6+ Kf8 Kg6 Kg8 Kh6+ Kh8 Ne2 Bd5 Rf1 h1B Rf4 h2 Rfc4 Bhe4 Ng1 h1R Bf4 Rg7 e7 Be6 e8B Re7 Qc5 Kg8 Bd7 Kf7 Bh2 Kf6 Qg5+
1bbNQr2/N1n1R1q1/2N5/n2q1Bn1/1pN5/2nRKN1b/1b2P2p/Bk2br2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 a4 Ke6 g4 Ke5 g5 Kd4 g6 h5 d3 c5 a5 f5 g7 b5 a6 f3 a7 f4 Bd2 h3 Na3 h2 Nb1 h4 Qc2 h3 Qa4 c3 Qa6 b3 Qa3 c4 Qb2 b4 Ra4 Qc7 Bg2 Nc6 Ra6 Nf6 g8N Nh7 Ra1 Qg7 Qc1 c2 Qd1 c1B Ra2 c3 Qf1 c2 Ra6 b2 Ra2 Ng5 Qe1 Bd6 Nc3 b1N Rb2 Na5 Ne7 Bb8 Rb3 Rf8 Qd1 Bb2 Bf1 c1B Nb5+ Ke5 Bg2 Nc3 d4+ Ke4 Be1 Bd2 Nc6 Kd5 Qc2 Kc4 d5 Rf6 d6 Rf7 Kf1 f2 Nf3 Rf8 Rg1 h1Q d7 h2 d8N Rf7 Bh3 Rf5 Nh4 Qd5 Nf3 Rf7 Kg2 f1N Kf2 Ne3 Qg6 Rf8 Bf5 Rf7 Nh4 f3 Rg3 Rf6 Qe8 Rf8 Ra3 Rf7 Ra1 Kb3 Rd1 Ka2 Rg2 Bdc1 Rd3 Kb1 Rg4 Bd2 Re4 Qd6 Re7 Ned5 Bh7 Nc7 Bf5 Bdc1 Bd2 Qd5 Ke3 f2 Nf3 f1B Qd7 Ba1 Qe8 Bcb2 Be1 Bh3 Bg3 Nce4 Be5 Bc3 Bf6 Bab2 Bd4 Be1 Be5 Na6 Bf6 Nc3 Bd4 Bbg3 Bf6 Rb8 a8N Nc7 Nba7 Rf8 Bd4 Rb5 Be5 Rc5 Bf6 Rc4 Nb6 Rf4 Nfe5 Rf1 Nf3 Nce6 Bd4 Bb8 Nc4 Nc7 Nf7 Nce4 Ncd6 Ba3 Ba1 Bb2 Nc4 Nc3 Nfd8
Bbbnb1nN/B1Q2Nbp/3P4/Bb5K/5q1n/5Bk1/1rqBnRp1/2rR4 b - - 0 1 illegal: No proof kernel
B1q1rB2/q1r3R1/b1rR1PB1/K1k5/1Np3N1/n1nB1pBb/Q3r2b/5q1b b - - 0 1 illegal: No proof kernel
rBqn3R/pNp1k1PK/n2Q1q2/rb1n1Br1/N2NR3/1nb5/2r5/1q1N1N2 b - - 0 1 illegal: No possible last move
2NQ1n2/3rn2P/Nbb2NN1/2B1K3/r1B2n2/p1nk1q2/1Rnn2pr/1Nr2R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Ke4 g5 b4 d5+ Kd3 Ke5 c4 f5 e4 a5 h4 a3 h5 g3 h6 a4 c5 f3 c6 a2 c7 g2 b5 f2 b6 g4 b7 f4 Bd2 g3 Qc1 a3 Nh3 g1N Bg2 f1R Qc2 f3 Bc3 f2 Bb4 Ne7 Qd1 Ra4 Nc3 Nd7 b8N Bb7 c8N Bc6 Nb5 Ne2 Qb3 Nf4+ Kc2 d3+ Kc3 d4+ Kc4 d2 Rb1 d1R Na6 a1N Rb2 d3 Nc3 d2 Nb1 Nc2 Qd3 Rfe1 Kc3 f1N Bc5 Rc1 Bf3 g2 Be2 Red1 Rg1 Qe8 Rh1 Qh5 h7 Qf3 Rg1 Rg8 Rh1 Rg6 Rg1 Rh6 Rh1 Ne6 Nf4 Rh2 Rg1 Bg7 Rh1 Ndf8 Ng6+ Kf6 Rg1 Nf4 e5+ Kg5 Rh1 Bh6 e6 Bg7+ Kb3 Bd4 Rg1 Be3 Qd8 Kf5 Kc3 Ke4 Rh1 Re1 Bc4 d1N+ Kb3 Nc3 Rg1 Nf5 e7 Red1 e8N Ne7 Rh1 Bd4 Nf6+ Ke3 Bd6 Bb6 Bc5+ Rd4 Rg1 Ng3 Rf1 Nge4 Be6 Ke2 Bf7 Rd7 Bd5 Ra5 Kc4 Ra4+ Rb4 Ne1 Kd4 Nd2 Ke5 Nc2 Rb2 Kd3 Bc4+
r1R1nK2/R1N5/6Nk/b2Bqb2/n1pQ3n/1p1BbP1p/1B4Bn/1r2nB1r b - - 0 1 illegal: No proof kernel
rbR1B3/pnB1n1q1/3BBQ1N/kpPR2pb/1N5r/1B1b3n/8/2Kb1b1r b - - 0 1 illegal: No possible last move
N2qnRBk/1q1b3N/2nq2N1/Nr1r3n/2pN3p/2bRQ1p1/1P4nB/n2K4 b - - 0 1 illegal: No proof kernel
1RKRQ3/2N1b1R1/6p1/nqr1Rp1N/BpRn2P1/qq1bq3/2kn4/q5rB b - - 0 1 illegal: No possible last move
bB1BqN2/KQ3q1R/2p3B1/5n1b/p5R1/b1n2Pnk/b4p2/1rBBb1rN b - - 0 1 illegal: No proof kernel
3rBb2/1R2nQrp/6N1/p5N1/BqrB1n1p/3r2k1/P1RBbr1b/K1B1q3 b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 Kd2 Kf7 Kc3 Ke6 g4 Ke5 b4 d5 Kb2 a5 g5 c5 f3 c4 b5 d4 g6 c3+ Kb3 d2 g7 Kf4 b6 e5 b7 c2 Kb2 e3 Rh2 e4 Ba6 d3 Nh3+ Kg3 f4 e2 f5 e1B f6 e3 f7 e2 Nf4 Nf6 g8B Bg4 Rf2 Qd6 Nc3 Nh5 Bc4 Nc6 b8B Qb4+ Bb3 Ne7 Be5 Ra7 Ng6+ Nf4 Rb1 Bf3 Ka1 Rc7 Bb2 c1R Bd4 Bh5 Qc2 d1R Ba4 d2 Qb3 Rc4 Rh2 Rc2 Bc1 Bf2 Be8 e1Q Rb2 Be2 Ne4+ Kg4 Ng5 Bg3 Rf2 Bh2 Ba4 Rc6 Qe6+ Kg3 Qf6 R6c4 Qg7 Qd6 Rb7 Qb4 Qf6 Qh1 Qg7 Rg1 Qf6 d1R Qf5 Bh6 f8B Rd3 Bf7 Qe4 Bfg7 Rd8 Bfe8 Qe5 Bh8 Bf8 Qf7 Rb2 Be3 Qec3 Bhd4 Qe1 Bd1 Bf1 Rc2 Be2 Bed2 Rg2 Rc3 Rf2 Bda4 Rc2 Bb3 Rc7 Rc6 Rc4 Ba4 Nc8 Nf3 Rc2 Qg8 Rg7 Qf7 Ne7 Ng5 Rc5 Ra6 Rc7 Rc6 Rcc8 Rc3 Rc4 Rc2
b3B2R/b4kqQ/rn2r3/2B1Brb1/3Np2B/Pb1q2qp/pK2n3/R1B2N2 b - - 0 1 illegal: No proof kernel
Knr1R1r1/2bR2n1/1Rn2nBQ/2P2q2/4pRb1/k4N2/R1p2r1p/1b1qN1B1 b - - 0 1 illegal: No proof kernel
3nbb1q/1QB3Rn/4r1b1/1pRP2R1/R5pK/rk1Nq2p/1n5R/2qb1B1N b - - 0 1 illegal: No proof kernel
1R2r2r/qRb4n/1RNbN2r/1p1p1P1n/B1q1p1KB/R3q1R1/6b1/Q3q1k1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Kg6 c4 Kf5 a4 Kg4 g3 e5 c5 h5 f5 b5 a5 e3 a6 b3 a7 d3+ Ke1+ e2 Kf2 h3 c6 b2 c7 h4 Bg2 d2 Nf3 e1B+ Ke3 h2 Rf1 h1Q Ra3 h3 Rf2 h2 Re2 Bd6 Nd4 Qe8 Nc6 Nf6 Be4 Kh3 g4 Qf1 g5 h1R g6 Bg3 g7 Nh5 g8R Bb7 Nc3 b1Q c8R Qa2 Rc7 Rh6 Rg2 Qfc4 Kf3 Qee6 Rg1 Kh2 Ne2 Qa1 Qf1 d1Q Bg5 Qe1 Kg4 Qad4 Rg6 Qe3 Nc1 Qe7 Nb3 Bf4 Bc2 Qh7 Nb4 Bg2 Nc6 e4 Rb7 Bc7 Bh4 d5 Nbd4 Bfd6 Ne6 Nd7 Ba4 Re8 a8R Nf8 Rd8 Qd7 Rdb8 Nh7 Qe2 Qg7 Qd1 Qgd4 Qa1 Qdc5 Rf1 Qa7 Rf3 Kg1 Rg3 Bf4 Rf6 Ng7 Ncd8 Rh5 Nf8 Ng5 Rc6 Rh8 Nfe6 Nh7 Be7 Rh6 Bh4 Nh5 Rcb6 Bfd6 Nc6
2KBQ1N1/b7/ppN2N1R/1b1r1nqP/4q1rN/1n1b2qB/p1n2k1n/R1N5 b - - 0 1 illegal: No proof kernel
3KQ1NN/3P4/n3b1p1/1k6/R1rbN1b1/R1b1BrpB/nr1q1Npq/5n1N b - - 0 1 illegal: No proof kernel
b4R1K/k3q3/1P5b/1rR2B2/Q1NpR3/B2pRrrN/1bb1nnpb/1b3R2 b - - 0 1 illegal: No possible last move
3rBB1B/3n3P/nq2n1Q1/2RN4/bpBB1N2/b1pp2n1/2n1bR1K/k1n2r2 b - - 0 1 illegal: No proof kernel
1q3n1N/p2r1n2/4B2n/4RR1p/NR1nb2R/B2Pk1np/3n1br1/1R1K1Qb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 b4 Kd7 g4 Kd6 e4 Ke5 g5 Kd4 g6 c5 e5 h5 b5 f5 g7 a3 e6 c3 e7 a2 e8R c4 b6 c2 b7 h3 Bg2 f3 Bb2+ c3 Re7 c1B Ba3 c2 Re8 f2+ Ke2 f1N Be7 f4 Be4 f3+ Ke1 f2+ Ke2 Nh6 g8R Nd7 b8R Bb7 Bb4 Ng3+ Kf3 f1N Kf2 Rh7 Ke1 Bc5 Ba3 Nf8 Nc3 Rd7 Rb1 a1N Rg4 Nb3 Bf5+ Be4 Rh4 Qc8 Rb5 Qb8 Nge2+ Kd3 Rh2 Bg1 Rb4 Nd4 Na4 Bb2 Rf2 c1N Re5 Bc3 Rc4 Bb4 Rff4 Bc5 Rcb4 Qd6 Nec3 Rc8 Ne2 Nc6 Re8 Ne5 Rf2 Nef7 Re5 Nb3 Be6 Qb8 Rff5 Bcd4 Qc1 Rc2 Qd1 Ne3 Qc1 Nc4 Qd1 Bde3 Nf4+ Kd4 d3 Rg2 Qe2 Bef2+ Kd1 Nh1 Ra5 Ng3 Qf1 Ke3 Ng6 Ncd2 Nh8 Nd4 Rae5
2nb2K1/2nR2b1/1p4Rb/np2PQ2/2B1p1N1/rb2b2k/RR1R1q1N/2n1r1B1 b - - 0 1 illegal: No proof kernel
NK3b1k/3pp2r/3r1B2/1n3n1p/r1N4P/2R1BBb1/1Br1b1Rb/1Q1q1B1r b - - 0 1 legal: proof: e4 f5 g4 fxg4 d4 b5 a4 bxa4 d5 c6 Ra2 cxd5 Ra3 dxe4 Ra1 e3 Ke2 Kf7 Kd3 g5 Kc4 Kg7 Kb5 h5 f4 a5 h4 a3 c4 e2 b4 e1R f5 a4 c5 a2 c6 g3 c7 g2 Kb6 a3 b5 g4 Bg5 g3 Rh2 Nh6 Nc3 Na6 Nd5 Rh7 f6+ Kh8 f7 Nf5 Qb1 Rc1 Nf3 g1R Nd2 g2 Nc4 Rc2 Rh3 Rb8+ Ka7 Rb6 Rc3 Rd6 b6 Rh1 b7 g1B+ Ndb6 Bh2 b8B Bb7 c8B Bf3 Bc7 Be2 Bb7 Qc8 Na8 Bg3 Bd8 Nc7 Bf3 Qa6+ Kb8 Nb5 Bb6 Qa4 Bbe3 Bh2 Qe1 Qb3 Rd1 a1B Rd2 a2 Qb1 Bb2 Na5 a1R Nc4 Bd1 Rg2 Ra4 Rd3 Bbe5 Rc3 Bh6 f8B Be2 Nc7 Beg3 Bg7+ Kg8 Bgd4 Bg7 Na8 Bf8 Bc5 Kh8 Ba3 Bh6 Bb2 Bf8 Na3 Qd5 Nc4 Qd1 Bf6+
nR2b2b/1K6/1pnrP3/B1B1n1Bp/3pB1qq/qR1N4/Q1B2qnk/r6N b - - 0 1 illegal: No proof kernel
n3kbQN/1pPbn1r1/N3p3/KBBR1qR1/1N2r3/1q4Np/nq2nNq1/8 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 c4 h5 a4 h3 g4 d3 f4 e6 c5 h2 g5 d4 f5 b3 a5 h4 g6 h3 f6 b2 c6 Ra6 g7 Ra8 a6 Qe7 a7 Bd7 Nc3 b1Q Nd5 Qa3 Ne2 Qbb3 Ng3 Na6 Rg1 h1Q Qg4 Nc7 Nb4 Ne7 g8N Rh4 Nh6 Qg2+ Be2 Rb8 Qg8 Na8 Ng4 Rc8 Nf2 Rc7 Rb1 Qa5 Bb2 Qf5 Ba3 Rf4 Rbd1 e3+ Kc1 Re4 f7+ Kd8 Bf1 e2 Kd2 e1N Be2 Nc2 Bf1 Ne3 Be2 N3d5 Bf1 Nc3 Be2 Nb6 a8N Na2 Bf1 Rc8 Nc7 Na8 Nca6 Rc7 Rc1 Qb1 Rc5 Qa1 Rd5 Qb2+ Kd1 d2 Bb5 Rf4 Ke2 Re4+ Kd3 d1N Kc4 Ndc3 Kc5 Ne2 Kc4 Qc1+ Kb3 d3 Ka4 d2 Ka5 Qgf3 Rg2 d1Q Rg1 Qdb3 Rg2 Ng6 Rg1 Ke7 Rg2 Qcb2 Rg1 Bg7 f8N Ke8 Rg2 Ne7 Ng6+ Bf8 Nh8 Bc8 Rg1 Rd7 c7 Qg2 Nc6 Ng6 Bb4 Rg7 Bc5 Bd7 Ncb4 Ne7 Rgd1 Qg4 Rg5 Qf5 Rd5
2B1Q3/1r4N1/1n2Rrp1/KpB1pbq1/2k2b2/R2PbNq1/3Rn2p/1Rq2rR1 b - - 0 1 illegal: No possible last move
R1k1qR2/4qp2/Qp2rn2/2B1N3/2KPpB2/5bnr/BN1pBr2/b2nBb2 b - - 0 1 illegal: No possible last move
5BB1/nr1n1q1b/3K1RP1/2Np2p1/1kb1RQp1/2Rb3p/1NR1bb2/q3R2r b - - 0 1 illegal: No proof kernel
2b4K/1p1r2BB/1N1B4/2p1qBBb/1bRn3b/qrQ2pn1/1P4p1/b3Rk1N b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 d5 a4 dxc4 a5 h5 a6 hxg4 Na3 Nxa6 Nb1 Nb4 Qc2 Na2 Qb3 Nf6 Qd1 Ng8 Kf2 Kd7 d4 Kd6 h4 Kd5 e3 Ke4 d5 g5 d6 f5 d7 a5 h5 f3 Kg3 f4+ Kf2 g3+ Ke1 g2 Kd2 f2 h6 g4 h7 g3 Nh3 g1Q Rh2 a4 Rg2 a3 Qe1 Kf3 e4 c3+ Kd3 c2 Kd4 Qf6+ e5 Nb4 d8B a2 Qd2 Nh6 Bd3 f1B+ Nf2 Ra3 Qc3 Be2 Be7 Rb3 Na3 Nc6+ Kd5 Nf5 e6 Qg7 Nh1 Qa7 Bd6 Ncd4 Nc4 Qa3 e7 c5 e8B Be7 Ba4 Bh4 Nb6 Rd8 h8B Rd7 Rb1 Qe7 Bg7 a1B Bab5 Qg5 Ke5 Qh5 Rg1 g2 Re1 Qg5 Be3 Ng3+ Bf5 c1B Bd3 Bd2 Rbc1 Qh5 Bc2 Qh8 Bh7 Bd1 Bcf5 Be2 Qd3 Bb4 Rc4 Bd1 Qc3 Be2 Rc1 Bd1 Bd2+ Ke2 Be3 Kf1 Bd2 f3 Bg5 Qe8+ Kf6 Qe3 Rc2 Qe5+ Kg6 Be2 Rd2 Bd3 Re2 Qd5 Re7 Qe5 Kf7 Be4 Kg8 Bd5+ Kh8 Bf7 Re8 Bh5 Re6 Qd5 Re2 Qe5 Re1+
1BR2b1b/1qN3np/1r1N1K1n/2NBPN1k/1qQR1N1p/2r2b2/1p4p1/b3n3 b - - 0 1 illegal: No proof kernel
1B1kBQK1/2b2np1/1pqR2pq/Rb6/pnP5/6Br/2rB1bNN/1q1q2B1 b - - 0 1 illegal: No proof kernel
4r3/3b1p2/1K1p1p1q/1Rpr2r1/QNRbB3/P2q3k/b3R1rR/B1n1nNR1 b - - 0 1 illegal: No possible last move
N2n3R/1pp4b/n2qpN1n/3B2B1/qk1b1p1r/2R1r1R1/P3R1Qn/R1K1b3 b - - 0 1 illegal: No proof kernel
3b4/Rp3BRn/N1p1N1n1/pk1R1pb1/2Rn3q/1rQ2P1p/r3R2K/1b3rB1 b - - 0 1 illegal: No proof kernel
1N1B4/1rQ1n1b1/2rBp2q/p1Bk2B1/rp4RN/n2Ppq2/R1p2b2/1B3K1b b - - 0 1 illegal: No proof kernel
1N4Q1/1p1pB2b/2r1bkrp/1RnR1b2/2N1PR1p/1R1pqB2/1KR1nb2/1b6 b - - 0 1 illegal: Other
4n1K1/1NNr1r2/rn1R2BP/5q2/q1q5/qbbNN2B/2RQ1q1q/5Rk1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 b4 Kf4 Kd5 Ke3 h4 Kf2 e4 a5 c4 g5 b6 f5 b7 f4 e5 a4 e6 d3 h5 d2 b5 f3 b6 g2 e7 a3 e8R a2 h6 g3 c5 g4 c6 Nf6+ Ke5 d5 c7 d4 Re7 d3 Rh3 Qd7 Rh5 Bg7 Rh3 Rf8 Re6 Ra6 Kf5 Ne8+ Kg6 Rf7 Rh2 Bc3 Ne2 Qd4 Qc2 d1Q Nc1+ d2 Na3 Nd7 Rb1 a1Q Nc4 Qa3 b8N Qdc5 b7 Nb6 Qb2 Qda4 Nd7 Qcc6 Be2 d1R Nc5 Rd4 Rf6 Be6 Ra1 Rdd7 Ne3 Bb3 Rd6 Qcb5 Bd1+ Qe2 Bc2 Qec4 Rh4 g1Q Rh2+ g2 c8B g3 Qa2 Rd8 Bh3 Rdd7 Qb2 Qd1 Bcf5+ Qc2 b8N Raa7 Nba6 Ra8 Nc7 Ra6 Rh1 g1Q Nb7 Qh2 Re1 g2 Re2+ Kg1 Be4 f2 Bef5 Q2e4 Nd3+ f1Q Qc1 Qf3 Rc2 Kh1 Qd2 g1Q+ Bfg4 Bg7 Kh7 Qf5+ Kg8 Qgf2 Bh5 Bc3 Bg6 Kg1 Rxf1+
3b1b2/7K/2n2r2/1q3PNR/br4n1/q1Bnr1Qn/1R1bkN2/2N2RRB b - - 0 1 legal: proof: b4 b5 e4 d5 exd5 g5 c4 c5 h4 gxh4 a4 cxb4 a5 f6 a6 Qb6 c5 Qa5 c6 Qd8 c7 Bxa6 c8Q f5 Qc4 Bc8 Qe4 fxe4 Rxa7 Bf5 Ra1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 g4 e5+ Ke3 Kg5 d4 b3 f3 b4 d6 h3 d7 h4 d5 h2 d6 b2 Ra3 b3 Nc3 b1R Bg2 b2 Na4 h3 Qc2 Ra6 Bf1 Qe7 d8N Nc6 d7 Nf6 Rd3 Qa3 f4+ Kh4 f5 Kg3 g5 Ng4+ Kd2+ Kf2 g6 Rh4 Rb3 e3+ Kd3+ e2 Ke4 Rb6 Qc3 e1B g7 Bd2 g8R Rh8 Kd5 e4 Ke6 e3 Kf7 e2 Kg6 e1B Ne6 Ba6 d8R Bb5 Nac5 Ba4 Bg2 Rh7 Qb4 Re7 Ng5 Re3 Ne2 Ra6 Rg1 h1N Rh8 h2 Qb8 Ba5 Re8 Bd8 Rh5 Bd2 Kh7 Rb6 Re6 Rb4 Rg6 Ra1 Qc7 b1Q Bb2 Qf1 Nc1 Qb5 Bc3 Rb1 Na2 Ke2 Rb2 Nhf2 Nd3 h1N Rf1 Nh3 Qg3 N1f2 Bh1 Re1 Nc5 Ra1 Nce4 Nd3 Nf2 Rc1 Bh8 Rc5 Bc3 Rce5 Rg7 Re6 Rg8 Rf6 Rg7 Rf3 Nc1+ Ke3 Qg1 Nh6 Nge4 Rg3 Qh2 Rf3 Rg3 Ng4 Rgg1 Rg3 Ng5 Rf3 Na2 Ke2 Qg3 Re3 Nc1+
2qr4/r1qR2BN/2r1Nnr1/Bkq4N/B4Br1/1K1P3Q/1R2r1b1/5nq1 b - - 0 1 illegal: No possible last move
2qr4/n1b1qB1K/1r2NN2/N3n1Rp/3Bn3/kBb2p2/PBr5/2Qb2R1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 b4 axb4 h4 gxh4 e3 e5 Ba3 exf4 Bc1 fxe3 Ke2 Ke7 Kf3 Kd6 Kf4 Kc5 g4 b5 g5 h5 d3 f5 g6 h3 d6 h2 g7 e2 d7 e1B Bd2 b3 Qg4 b2 Be2 b4 Bc3 b3 Qh3 Qe7 d8B Nf6 Kg5 f4 Kg6 Nc6 g8B Nd7 Bg4 Na7 Nd2 b1Q Qg3 b2 Bd4+ Kb4 Bf7 c5 Qe3 c4 Ngf3 c3 Nb3 c2 Bge6 c1Q Ng5 Bc3 Na5 Ka3 Rg1 h1N Ne4 Nf2 Nf6 Ne4 Rg5 f3 Bb3 Ba6 Bc7 Rc8 Bce5 Bh6 Qf4 Rhd8 Kh7 Qbc2 Qd2 b1R Qe3 Rb2 Rb1 Q1d2 Rbg1 Bb5 Qe1 Ba4 Qc1 Rc6 Bb6 Qe2 d4 Qa6 d5 Qc8 Bed4 Ne5 d6 Qb1 Bc7 Rb6 d7 Qc2 R5g4 Bf4 Rg5 Bb5 Bb8 Be2 Bc7 Bd1 Bb8 Rf8 d8N Qb1 Ne6 Rd8 Qd2 Rc2 Qc1+ Qb2 Bd6+ Bb4 B6c5 Nd7 Bc3 Bc7 B5d4 Ne5 Qb1 Qc1 Ba1 Qb2 Qc1 Bc3 Bxb2+
RRBB3n/1bK1bN1R/2p2bb1/r2kNnpR/1q6/1P2rN2/Q4b1q/8 b - - 0 1 legal: proof: f4 e5 c4 d5 cxd5 b5 Nc3 b4 Nb1 b3 axb3 Bd6 Qc2 Bc5 Qd1 Bf8 g4 exf4 g5 a5 g6 hxg6 Nf3 g5 Ng1 g4 e3 fxe3 Bc4 a4 Bd3 a3 Bf1 axb2 Ke2 Kd7 Kd3 Kd6 Kd4 g5 h4 f5 h5 g3 d3 c6 h6 e2 h7 e1B Rh5 g2 Qc2 f4 Be3 f3 Nd2 b1B Qa2 f2 Ngf3 g1B Bh3 f1Q Ne5 Qe7 Ndf3 Bb7 Bc8 Qh3 Ke4 Ra7 Bb6 Bd4 Bd8 Qh2 Kf5 Kc5 d6 Bef2 d7 Nh6+ Ke4 Rg8 h8R Nf5 R8h7 Bb2 Bb6+ Kd6 d8N Nd7 Nf7+ Ke6 Bd8 Ra5 Ng4 Bf6 Nge5 Ne3 Kd4 Nf5+ Kc4 Rg6 d4 Qd6 Rh3 B8e7 R3h5 Rc5+ Kb4 Kd5 Ka4 Rg8 Kb4 Rc3+ Ka5 Nf8 Kb6 Qb4+ Kc7 Ng6 Qa4 Nh8 Qa2 Ke4 d5 Re3 d6 Kd5 d7 Ng3 Qe2 Bg6 Ra8 Nf5 Qa2 Re8 Nd6 Re1 Ndf7 Ra1 Qe2 Ra3 Qa2 Ra5 Rb8 Qg1 Nc4 Bec5 Be7 Qh1 Ra8 Qg1 d8R+ Nd6 Bd7 Nf5 Rdb8 Qh1 Bd8 Re3 Bc8 Bce7 Nce5 Qg2 Qb1 Qh2 Qa2
2b3nq/5R2/2n1QBr1/qk4q1/p1NRr3/p2P2Nb/K1R2p2/1N2B1nR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 e3 a5 Bc4 c6 Bb5 cxb5 b4 a3 Qe2 a4 Qd1 Bd6 Nc3 Bc7 Nb1 Ba5 bxa5 Qg5 Rh3 Qe7 Rh1 Qd8 g4 Kd7 g5 h5 e4 f5 d6 Kc6 e5 b4 d3 b3 Kd2 b2 Kc2 f3 a6 f4 a7 f2 d7 f1B g6 h3 g7 h2 e6 h4 e7 h3 e8N f3 Bd2 f2 Qg4 Kb5 Qe6 Qg5 d8B Rh4 Ne2 Nc6 Ra2 Re4 Bf6 Rb8 a8R Rb6 Ng3 Ra6 Rg1 h1N Be1 h2 Ra7 Bh3 Rf7 Rb6 Nh5 Ng3 Rh1 Ne2 Ng3 Ng1 Nd6+ Ka6 Nc4 Kb5 Nbd2 Nh6 g8R b1Q+ Kc3 Qb4+ Kc2 Qc3+ Kb1 Qa5 Rd8 Ng8 Rc2 Qd5 Qe5 Bhe6 Bg5 Nd4 Ka2 Bed7 Qe8 Rg6 Nb1 Nc6 Bf6 Qg5 Qe7 Nh3 Rf1 h1Q Rg1 Qh2 Rh1 Ng1 Qe8 Qh8 Qe7 Bg4 Qe6 Bh3 Rd4
1K2b2q/1Rr1r1Q1/1R1R1rrB/n2p1p1N/2B5/r1n1PNR1/4k2p/3N2q1 b - - 0 1 legal: proof: b4 a5 h4 axb4 a4 c5 f4 g5 d4 gxh4 a5 cxd4 f5 e6 a6 exf5 a7 Bh6 Bxh6 b5 Bc1 f4 Qd2 b3 Qd1 b2 Na3 b1R Nxb1 b4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 Kd6 h5 g4 f3 c3 f2 e3+ d3 g5 b3 g6 h3 g7 b2 Qd2 h4 Qc2 h2 Nf3 h3 Qd1 Ne7 g8N Rh7 Ra6 Nbc6 Nf6 Nd5 Rg1 h1Q Rb6 h2 Rg3 Na5 Nh5 Qh8 Be2 f5 Qg1 f1R Bd2 Ba6 Be1 Rg8 a8R Bb5 Ra7 Re7 Rab7 Rg4 Bf2 Rc1 Qg2 Qg1 Bf1 Nb4 Kc7 Na2 Rd6 Rg6 Rbb6 Kc5 c4 d2 Nc3 b1R Nd1 Rb3 Be1 Kb4 c5 Nc3 c6 Ra3 Be2 Kb3 Bc4+ Kc2 Rb7 Qe5 Kb8 Qh8+ Bg8 Ba4 c7 Bb5 Rdb6 Kd3 c8R d6 Bf2 Ke2 Rd8 Be8 Bb3 d5 Rdd6 Rh6 Rg7 Rf6 Bh4+ Qf2 Qg6 Qg1 Bg5 Rc2 Bh6 Rc1 Nf2 d1R Qg5 Rd4 Nd1 Rde4 Qg6 R4e6 Qh7 Rc2 Rg3 Rg6 Qf7 Ref6 Qf8 Ne4 Ba2 Rcc7 Qg7 Nc3 Bc4+
1kr2B1r/p1Rp3n/2NbP2Q/3pnR2/R1nr1p2/2K5/2BN1B2/1B1q1n2 b - - 0 1 legal: proof: d4 g5 a4 c6 h4 gxh4 d5 cxd5 g4 b5 f4 e6 f5 exf5 axb5 fxg4 b6 g3 b7 Na6 bxc8R Rb8 Bg5 Rb7 Ra8 Nb8 Be3 Ke7 Bc1 Ke8 Kd2 f5 e4 h5 c4 f4 b4 h3 e5 g2 c5 h2 b5 h4 c6 h3 e6 Ba3 c7 Qf6 c8B Kd8 b6 Bd6 Bd3 Qg6 Qh5 Nc6 Bc2 Rb8 Ba6 Na5 b7 Kc7 Nf3 g1N Ra4 Nc4+ Kc3 Qg4 Ne5 Qd1 Nc6 Nf3 Be3 Nf6 Bf2 Nh7 Qh6 Nfe5 Nd2 Rbc8 Rg1 h1R Rg5 h2 Rf5 Re1 Bb5 h1N b8B+ Kb7 Bc7 Rf1 Ba5 Rg1 Bb4 Ng3 Bbc5 Nf1 Bb4 Na3 Bbd3 Nac4 Rb8+ Kc7 Rb5 Rg3 Rc5 Re3 Bb1 Re4 Bdc2 Rd4 Na5+ Kb8 Rc7 Be7 Ba3 Bd8 Bf8 Be7 Ra2 Bc5 Ra4 Bd6 Nc6+
3B2Bq/5nQb/Rbq1NBbN/1r1P1B2/1q1bK3/r1r5/1n2N3/k3rnR1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 e4 Kd4 b6 f5 e5 h5 d3 c5 g5 b3 b7 c3 e6 h3 g6 h4 g7 c4 e7 b2 e8B c2 Qe1 h2 Ra6 c3 Bd7 h3 Bg2 Qb6 Bf1 Qb4 Be2 Nc6 b8B Na5 Bd6 Rh5 Ra7 Nh6 g8N Bg7 Nd2 b1B Rb7 Nc4 Qh4 Nf7 Bb2 c1B Bf8 Ra3 Ba1 Nb2 Qg4 c2 Qg2 Kc3 Ra7 Bd4 Nf1 Bce3 Be6 c1R Bb3 Bd7 Qg5 Be8 Qg2 Bb6 Rb7 Bed4 Ne3 Re1 Kf2 f3 Nh6 f4 Qg7 Rb5 Ra7 Rc1 Ra6 Rc2 Kf1 f2 Bg4 Rc1+ Ke2 f1N Be7 f3+ Kf2 Re1 Bbe6 Rc1 Bef5 Kb3 Bf6 Ka2 Bd8 Rc3 Ne2 Bc2 Rg1 h1Q Bh7 h2 Bg8 Bb1 Bf5 Qg2+ Ke1 h1Q Nd5 Qg6 Ndf4 Qc6 Ne6 Qh4+ Ng3 f2+ Ke2 Qh5+ Ng4 Qh8 Nh6 Ne3 Kd2 f1R Ne2 Bc2 Bh3 Re1 Bf5 Be5 d4 Bf6 d5 Bfd4 Bg4 Bh7 Bf5 Ne5 Qc7 Beg6 Qg7 Nf7 N2f4 Rd1+ Ke2 Rdc1 Kf3 Nf1+ Ke4 Re1+ Ne2 Nc4 Bb2 Kb1 Bc1 Ka1 Bcg5 Nb2 Bgf6
K5Nk/NRP2B1n/B3r1R1/2q1Qn1B/2r2B2/n3nbr1/2b1qrb1/4R1q1 b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Kf8 Kd3 Kg7 Ke4 b5 Kd5 h5 a4 f5 e4 g2 c4 f4 g6 g3 e5 f3 e6 b3 a5 h4 c5 f2 c6 h3 c7 d3 e7 b2 e8B d2 a6 b4 a7 h2 Na3 b1N Kd6 b3 Qe2 d1N Qe4 b2 Nc4 Nc6 Bd3 f1R Ra5 Ne3 Ra3 Rf2 Rb3 Rh4 Rb4 Bb7 Bc2 Nce7 Ne2 g1Q Nf4 g2 Nd2 Na3 Nb1 Kh8 Bd3 Nf6 Nc3 b1B Ba6 Bc2 Nh5 Nh7 Bf7 Qf8 Nf6 Re8 Qe5 Bf3 a8B Rd4+ Kc5 d5 Kb6 Rc4 Kb7 N7f5 Nb5 Re6 Na7 Qc5 Kb8 d4 Rb7 d3 Bd2 Qb1 Re1 h1B Bc1 g1R Ng8+ Nf6 Bd2 Rg3 Bc1 d2 g7+ Kh7 Bh5 d1Q Bf7 Bhg2 Bd2 Neg4 Bf4 Qd2 Ne7 Qa1 g8R Nge3 Rg6 Kh8 Ng8 Qe2 Rb6 Bg4 Bf3 Qb1 Rb7 Qbb6 Bc6 B4f3 Bce8 Qb1 Ka8 Qbd1 Rg7 Nh7 Bh5 Qa1 Bef7 Qad4 Rb1 Qdd1 Rc1 Qdf1 Re1 Qg1 Rg6+
1Rr1b1Bn/K1n2B1Q/5r1b/Rq4Rn/1rNBn3/q2bBr2/1P2kN2/2b5 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 h4 g5 f4 gxh4 c3 dxc3 Ra2 exf4 Ra3 Ne7 Ra1 Ng8 Kf2 Ke7 e4 Kf6 g4 Ke5 g5 h5 b6 d5 g6 a5 g7 f5 b7 d4 Bd2 f3 Ra4 c2 Ra1 c1B Be2 f4 Rh2 d3 Qf1 Kd4 e5 h3 e6 h4 e7 a4 e8R a3 Rh1 a2 Re6 h2 Bd1 h3 Bb4 d2 Rb6 Na6 b8B Bf5 Ne2+ Kd3 Na3 Nc7 Qg2 Qg5 Qf1 Ra4 Bc5 Ne7 g8B Ng6 Bdb3 d1N+ Ke1 Rb4 Bgf7 Bh6 Qg2 f2+ Kf1 Nc3 Rb1 a1Q Ba7 Ne4 Nc3 Rc8 Nc4 Nh8 Nd1 Qa3 Rg1 h1B Rb8 h2 Be3 Bg6 Bg8 Qb5 Ra1 Be8 Qg6 Bf3 Bed4 h1N Qh7 Be2+ Kg2 Bf1+ Kf3 Ng3 Rg2 Nh5 Rg5 Bh3 Be3 Bf5 Bad4 Bfg6 Na5 Bf5 Bbf7 Bg6 Nc4 f1R+ Kg2 Ke2 Nf2 Qd3 Ra5 f3+ Kh3 Qa3 Kg4 Ng7 Kf4 Bf5 Bc5 Nh5+ Ke5 Bg6 Kd4 Bf5 Nh3 f2 Ba7 Re1 Bb6 f1R Bc5 Rf3 Nf2 Rf1 Ba7 Nd2 Bb6 Bd3 Ba7 Qd7+ Kc5 Qda4 Rbb5 Ne4+ Kb6 Q4b3 Kb7 Rf6 Bad4 Qba4 Rb6 Qb5 Ka7 Rf3 Rb8 Rf6 Ng4 R1f3 Nf2
BN2r1R1/b1RR4/3BR2r/pn6/Q2k2n1/q1Nb3n/r3nPKN/b1q4n b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 h4 g5 e4 gxh4 c3 dxc3 Ra5 fxe4 Ra4 Qc7 Ra1 Qd8 g4 Kf7 b4 Ke6 b6 Ke5 g5 d5 b5 h5 b7 h3 g6 e3 g7 d4 b6 h2 Qe2 c2 Qd1 h4 Qg4 h3 Qh4 d3 Qg4 d2+ Ke2 d1N Kf3 e2 Qe6+ Kd4 Kg3 e1B Qf5 e5 Ra2 e4 Qf7 e3 Ra3 e2 Qf5 Nc3 Rb3 Nc6 b8R Nb5 b7 Nf6 g8R Qe7 Nd2 Ng4 Qg6 Qa3 Rc3 Bf5 Nc4 Bd3 Qg5 Bc5 Bf4 c1Q Bg2 a5 Rg7 Rh6 Ne5 Ba7 Rbg8 Re8 b8N Nb4 Bf3 Nd5 Rcc7 Bc3 Qh4 e1R Rgd7 Re2 Bg2 Ra2 Nef3+ Ke4 Bd6 Ba1 Ne2 Nf4 Re1 Kd5 Bh1 Ke4 Rc2 Kd5 Nc3+ Kc4 Ne5+ Kd4 Ba8 h1N+ Kf3 h2 Re3 Ne2 Kg2 Ng1 Re1 Nh3 Nf3+ Kc4 Ree2 Ng3 Re6 h1N Nh2 Kd4 Na4 Re7 Rcc7 Ne2 Nc3 Re8 Qg5 Qab2 Qd2 Qb3 Qc2 Qba3 Qa4+
2b3Qk/4r3/BKn1n1nq/4B1n1/B2R2bN/nR4pR/N1r2P1R/2n3br b - - 0 1 illegal: No possible last move
1N1B1bb1/N3r2n/3q1prr/r3nk1N/1P4r1/1n3R2/RKR4r/2Q1NB1q b - - 0 1 legal: proof: d4 b5 d5 e5 a3 b4 axb4 c6 Bd2 cxd5 Bc1 d4 h4 g5 f4 gxh4 b3 exf4 Ra3 a5 Ra2 a4 Ra1 axb3 Kd2 Ke7 e4 Ke6 c4 d5 g4 h5 g5 d3 Kc3 b2 e5 d4+ Kb3 d2 c5 f3 g6 d3 c6 f2 c7 h3 g7 h4 Ra2 h2 Ra1 h3 Ne2 Qd6 Ra2 Rh6 Ng1 Nd7 Be2 f1N Qc2 d1R Qc4+ Kf5 e6 d2 e7 Ngf6 e8N Nh7 g8N Ra5 Nf3 Re1 Nc3 d1R Bg5 Rd4 Bd8 f6 Nb5 Ne5 Qc1 Rg4 Na7 b1R+ Kc2 Bb7 c8R Nd2 Rf1 h1R Rc4 Ra1 Kb2 h2 Rc2 Bd5 Bb5 Nb3 Ng7+ Ke4 Ne7 Bg8 Nec6 Rgg6 Nh5 Kf5 Rc4 Re4 Rc2 Reg4 Rff2 Re1 Bc4 h1Q Nb8 Re3 Bf1 Re2 Qd2 Rae1 Qc1 Rd2 Rh2 Rf2 Rh3 Rh2 Rg3 Nc6 Rh3 Re7 Ne1 Ne5 Rf3+
4r1bN/2K1B1k1/4Rq2/n1n2q1Q/n1N4R/2Rp4/1qNN1Pqn/1r1Bq1b1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 Kf7 g4 d5 c4 h5 g5 e5 c5 d3 Ke3 d2 c6 h3 g6+ Kg7 b6 b3 c7 d4+ Ke2 e3 Kd3 e4+ Kc4 b2 Kb5 h4 b7 e2 Kb6 e1Q Ra3 h2 Bb5 h3 Bc4 e3 Be6 e2 Ra7 d3 Ba2 Na6 b8N Be6 Bc4 Nc5 Rb7 Ne7 Bb3 Bg8 Bd5 Ra1 Bb3 Nc6 Na6 Qf6 Na3 b1Q Nc4 Bd6 Nb4 Na5 Nc2 Qbb2 Nf3 Rb1 Ra7 Qf5 Ra6 Bf4 c8R Bb8 Rg1 h1Q Rg4 h2 Rh4 Qg2 Rc6 Qbf6 Ba3 h1Q Bb4 Bh2 Ba3 Ncb7 Be7 Bg1 Kc7 Nc5 Re6 Qhh3 Rac6 Qb2 Ba4 Qff6 Bb3 Qhf5 Ba4 Qef1 Bb3 e1N Qe2 d1N Nfd2 Nc3 Qh5 Nf3 Ba4 Rh6 Bb3 Kh8 g7+ Kh7 Ba4 Nh2 Bb3 Qe1 Ba4 Bf7 g8N Kg7 Bb3 Rg6 Nh6 Bg8 Nf7 N3a4 Nh8 Rg5 Na1 Rg4 Bd1 Rd4 Nc2 Rd8 Rb6 Ra8 Rb3 Re8 Rc3
R7/bNnB2qn/N7/rn5K/2q2p2/B1RN2Q1/qqbRRr1P/5kqn b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 Ke7 e4 Kd6 c4 Kc5 e5 g5 e6 f5 e7 d5 e8N d3 b6 Kd4 b7 d2 c5 f3 Kg3 Ke3 c6 d4 c7 f2 Na3 d3 Nb1 b3 Nf3 b2 Nd6 Qf6 Ra4 Ra5 Qb3 Na6 Be2 f1Q Nb5 Bc5 b8R Ba7 N1a3 b1Q Qc4 Qa2 Ne1 Qfb2 Rb6 Nf6 Qc2 Rf8 Qd1 Nh7 Nd4 Be6 c8R Bb3 Ndf3 Nc7 Rh6 Bc2 Ne5 Rf7 Re6 Qf4+ Kg2 g3 Kh3 Kf2 Nd7 g2 Nc4 g1Q Nd6 g4+ Kh4 g3+ Kh5 g2 Nb8 Qfc4 Bg4 Kf1 Na6 Rf6 Bh3 Rf8 Qg4 d1N Qg8 d2 Re2 Nc3 Qg3 d1N Nb7 N3b5 Nd3 Nf2 Rd2 f4 Bd7 Re8 Ra3 Re2 Rc3 Ne4 Qe3 Rf2 Ra8 Ng3+ Kg4 Qbb1 Ba3 Qba1 Ndc5 Q1b2 Qd4 Ke1 Qf6 Qgf1 Qh4 Qd4 Rg1 Nh1 Kh5 Qg7 Qg3 Qab3 Rd1+ Ke2 Rd5 Qfa1 Rgd1 Qaa2 R1d2+ Kf1 Nd3 g1Q Re5 Qc4 Ree2
5R2/1n1bKB2/n1QR2qn/BRPNk1n1/1r1r3q/4p1Nq/2N2r2/bq3R2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 Kf7 g4 Kf6 c4 d5 f4 e5 b6 h5 f5 h3 c5 e3+ Kd3 h4 b7 e4+ Kc2 d3+ Kb3 d2 g5+ Ke5 f6 e2 f7 e1N g6 e3 g7 h2 Ra4 d4 Kc4 d3 Nh3 b3 Ng1 b2 Nh3 Qe8 Ra1 Nh6 g8N Na6 b8R Nf3 Bg2 Bg7 f8R Qg6 Qf1 d1N Rg1 h1Q Nf6 d2 Nh5 Bd7 Qf2 Nc3 N3f4 d1R Bd2 h3 Na3 b1Q Ng3 h2 Nc2 Ng5 Rb5 Rb8 Rf1 Nce4 Nd5 Rb6 Ba5 Nd6+ Kc3 Rh7 Qf3 Nb7 Kc4 Bh8 Bh3 Rf7 Be6 Rf6 Qg2 Rf2 Bf7 Bf6 Qf3 Qg2 Ra3 h1Q Rd3 Qh4+ Nf4 Qgh2 Rd6 Qh1 Qc6 Q1h3 Rb3 Bh8 Nh5 Kf5 Ng3+ Kg4 Rb4 Bd4 Kd5 Ba1+ Rd4 Rd3 Ke5 Rb2 Rb4 Rd4 Rb5 Rbb4 Nd5 Kf3 Nh5 Qg8 Kf6 Ke4+ Ke7 Ke5 Ng3 Qh7 Bb6 Qg6 Ba5
nq3NR1/r1krpb1r/N7/3r3R/b2rr2B/bN4P1/4BNKB/1Q1b2n1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 c4 h5 f4 d5 Kf2 Kd7 f5 h3 g3 e3+ Kf3 h2 f6 e2 f7 e1R c5 b3 c6+ Kc7 Kg2 b2 Be2 d3 Ra2 d2 Bf1 h4 Be2 d4 Bd3 h3+ Kf2 Bd7 Bf1 d3 Qe2 d1B Qg4 d2 Qf3 Bh6 f8B Nf6 Qf5 Nh5 Bg7 Nf4 Ra4 Rh7 Bd4 Ra7 Be2 Na6 Ra3 Qb8 b6+ Kc8 b7+ Kc7 Rf3 Be8 Bf6 Bf7 Bh4 Ba4 Qd3 d1R Nd2 b1B Nb3 Bc2 Be3 Bg5 Qe4 Rd4 Qg6 Bd1 Qb1 Rd5 Bd4 Bf6 Bc5 Bb2 Bd4 Qg8 b8N Ba3 Rc3 Qh8 Rc5 Rd7 Rg5 Rh5 Rg8 Rhd5 Bc4 Re4 Be2 Nd3+ Kf1 Ne5 Kf2 Nf3 Bb6+ Kd6 c7 Qe5 Be3 Red4 c8N+ Kc7 Nb6 Qd6 Nc4 Qb6 Ne5 Qb7 Nbc6 Qb8 Nb4 Re4 Ng6 Red4 Bd3 Re4 Nf8 Red4 Ne2 Ng1 Nf4 Rg5 Be2 Kc8 Nfd3 Rgd5 Bhg5 Nc7 Bc1 Nf3 Qa2 Na8 Bce3 Kb7 Qb1 Kc7 Rg1 h1R Na6+ Kd8 Bf6 h2 Kg2 Ng5 Rf1 Nh3 Rf5 Kc8 Bh5 Re1 Bg1 h1R Nf2 Ree4 Be2 Kd8 Bh2 Ng1 Bg5 Nf3 Bg1 Rh7 Bh2 Ng1 Bh4 Kc8 Rh5 Kd8 Nb4 Kc7 Na6+
rq6/BN1B1R2/1Nb4k/1Q2P3/R1n1q3/npK5/b1R1bnBB/2bb1b1b b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 b5 a4 g5 Qd2 gxh4 Kd1 b3 Ke1 b4 Qd3 Ra5 Qd1 Rb5 axb5 Bc5 Na3 Bd6 Nb1 Bf8 Kd2 h5 e4 f5 g4 Kf7 c4 Kg7 b6 d5 b7 f3 c5 h3 c6 b2 g5 d3 g6 h4 e5 h2 c7 h3 Nc3 b1N+ Ke3 f2 Kd4 f4 Qa4 d2 Qa5 d1Q+ Bd2 f3 Na4 Qc2 Be2 f1B Qa7 f2 Be1 Nd7 b8B Kh6 g7 Na3 Bd3 Ngf6 g8B Nb6 Be2 Ng4 Nf3 Nbc4 Qa6+ Be6 Ba7 Qb8 c8R Qf5 Bd3 Be2 Rf1 h1B Be4 h2 Nd2 Bg2 Qb7 h1B Nb3 Be7 Nb6 Bg5 Rc7 Bc1 Na5 Bgf3 Rf7 Qf4 Rg1 f1B Bg3 Nf2 Rg2 Qh4 Bh2 Qf4 Kc5 d4 Bf5 Bed5 Bd7 d3 Bh7 d2 Be4 d1B Kd4 Rd8 Qc6+ Be6 Qb5 Qf5 Ba8 Bc6 Nb7 Qe4+ Kc5 b3 Kb4 Bf5 Kc3 Qf4 Nd6 Bb1 Nb7 Qe4 Ra2 Rg8 Rc2 Ba2 Rg3 Bd5 Rd3 Bc6 Rd4 Nd6 Rb4 Ndc4 Ra4 Qd8 Bf5 Qed5 Nc5 Bb7 Be4 Qc6 Bg2 Qe4 Ra5 Qf8 Ra4 Bd5 Bb7 Bc6 Bc8 Qd6 Bf5 Ra8 Nb7 Qb8 Bd7
r5Rr/2kbpP2/1b1QBN2/2B3bB/bB5n/KNR1r1q1/1r1R3r/1qr5 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Ba6 fxe6 Be2 e5 Bf1 e4 h4 gxh4 a3 b5 Ke2 b3 Ke1 Na6 a4 b4 Be3 Nc7 Bc1 Nb5 axb5 Qc7 Qd3 Qb6 Qd1 Qd8 Kd2 h5 f4 d5 g4 Kd7 c4 h3 b6 b2 Kc2 h2 Kb3 d3 f5 h4 f6 e3 b7 d2 b8B h3 f7 d4 g5 d3 c5 e2 g6 e1B g7 Bf2 Bf4 Qc7 Ra3 Nh6 g8R Nf5 Bd6 Bh6 Bg3 Bg5 Ne2 Nh4 Nbc3 b1R+ Ka2 Kc6 Bb2 Bd7 Nd5 Rc1 Rg1 h1R Bd6 h2 Bd4 b3+ Kb2 Qb8 Rg2 Rg1 Bc3 h1R Bb4 Rh2 Nf6 Bfe3 Rf2 Rg3 Nd4+ Kb7 c6+ Kb6 Bdc5+ Kc7 Qf3 d1Q Be2 d2 Qd5 Qf1 Qe6 d1B Bh5 Qfb5 Re2 Bg1 Rd2 Re3 Ra4 Bf2 Ka3 b2+ Nb3 b1R Ra5 Rb2 Qd5 Be8 Qd4 Qd3 Ra6 Qb1 Qd6+ Kc8 c7 Bg1 Rg7 Bd7 Rg8+ Kb7 Qd3 Bc2 c8B+ Kc7 Qd4 Qb7 Qd3 Qf3 Qd5 Qg3 Ra5 Ba4 Be6 Bd3 Ra6 Bdb5 Rd6 Bd7 Rc2 Rh1 Rc3 Rhh2 Qe5 Bf2 Rd2+ Kc6 Ne8 Ree1 Ba7+ Bc5 Nf6 Re3 Qd6+ Kb7 Bb6 Bd4 B6a5 Ba7 Bc5 Bb6 Qd3 Kc6 Bab4 Kc7 Qd6+
1R1brNQ1/4n3/2R4n/5PnK/1b1n3R/1rp2Br1/Rb1B2bn/1kn1BN2 b - - 0 1 legal: proof: c4 d5 b4 dxc4 e4 f5 b5 fxe4 b6 axb6 Ke2 b5 Ke1 b4 h4 g5 a4 gxh4 Ne2 b5 Nf4 b3 Ne2 b4 Ng1 Qd4 Ke2 Qc5 Ke1 Qb5 axb5 Bh3 Ra7 Be6 Ra1 Bc8 Ke2 Kd7 d4 Ke6 g4 Kd5 f4 c5 f5 h5 b6 e5 g5 e3 Kf3 c3 g6 h3 b7 e4+ Kg3 h2 Kh4 c2 g7 c4 Qd3 e2 Ra6 e1B+ Qg3 e3 Ra4 Ke4 d5 b2 d6 e2 d7 b3 d8R Be7+ Bg5 c1N Rd3 B1b4 Ra6 e1B Ra7 Nc6 b8B Bb7 Ra6 Bd8 Qf2 Nh6 g8R Nd4 Rd6 Ra3 Rd1 Bec3 Rgg6 Re8 Kg3 h4+ Kg2 h3+ Kg3 Ba8 Bd2 Bd5 Bg2+ Kd3 Re1 Kc2 Ne2 Bc6 Rhf1 h1N+ Kf4 h2 Qe3 Ng3 Qg1 h1N Rg8 Ne4 Rf2 Nhg3 Bf3 Nf1 Rh2 Bd5 Rc6 Ng5 Rh4 Nh2 Rf1 Be4 Rf2 Bd5 Be1 Be4 Nd2 b1R Rg2 b2 Nf1 Rb3 Bc7 Ra1 Rh8 b1N Ba5 Bb2 Kg3 Nc3 Nf4+ Kb1 Ng6 Ra2 Nf8 Nd5 Rc2 Raa3 Rg2 B2c3 Ra2 Ne7 Rg8 Bb2 Kf4 Bc5 Bad2 Bb4 Rh8 Nh7 Qg8 Ng5 Kg3 Bd5 Rf4 Be4 Kh4 Bd5 Kh5 Be4 Bd1 Bg2 Rh4 Rg3 Bf3 c3 Rh7 Rb3 Rf7 Nc8 Rb7 Ne7 Rb8
1q3qbB/BN1K4/1R3NbP/nQ1BbB1n/1p3R2/5n2/kNn2q2/bq1r4 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Nd2 Ra7 Nb1 Rb7 Ra3 axb4 Ra1 b3 Ra3 b4 Ra1 Rb5 axb5 Rh7 Be3 Rh5 Bc1 Rh8 Kf2 Ke7 e4 Kd6 h4 Kc5 c4 f5 h5 g5 b6 d5 h6 f3 Kg3 f4+ Kf2 g3+ Ke1 d3 Kd2 g4 e5 b2 b7 f2 e6 f3 Ke3 d2 Kf4 d4 Kf5 g2 Ke5 g3 e7 d3 e8N Nf6 Rh4 Bg7 Rd4 Be6 Nd6 Bg8 Nf5 Nh5+ Ke4 Nc6 b8B Na5 Ne2 g1N Nd6 g2 Kf5 Be5 Na3 b1B Qa4 d1Q Nc3 d2+ Re4 Qb3 Bb2 d1N Nd5 Qe3 Be2 f1Q Nf6 f2 Bf3 Rh7 Ra2 Rd7 Ba7+ Qb6 Bc3 Qfd3 Rc2 f1Q Ba1 Qb3 Rf4 Qef2 Bd5 Nf3 Bc3 g1B Ba1 Bh7+ Ke6 Ne3 Rc3 Bbe4 Qb5+ Kd4 c5 Nc2 c6 Qbb1 Nac4 Bg8+ Nf7 Bh2 Nb2 Bg3 Rc5 Qb8 c7 Bh2 c8B Bg3 Bc4 Kc3 Rc6 Rd1 Rb6 Bg6 Bd5 Bh2 Kd7 Bg3 Nc4+ Kb3 Nd8 Ka2 Nb7 Bd4 Ke7 Be5 Bf5 Bh4 Kd7 Bg5 Rh4 Bd2 Bd4 Bc3 Rf4 Ba1 Ne8 Bc7 Bh8 Bce5 Nf6 Qc5 Re4 Qcf8 Rf4 Qf2 Nb2+
1N1r4/3p1B1b/RB1Rn3/2RrnP1K/p2B1bn1/k3q1N1/2Q1nbB1/3n2r1 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 h4 g5 e4 gxh4 c3 dxc3 Ra5 fxe4 Ra4 Qc7 Ra1 Qd8 Ke2 h5 f4 a5 g4 e5 b4 Ke7 b6 a4 g5 c2 g6 h3 b7 e3 Kf3 e2 g7 e1B b5 h4 Kg4 e4 b6 h2 Ne2 e3 Bh3 Ra5 Ng1 e2 Nd2 Kd6 Rb1 Kc5 Ndf3 Qe7 Bd2 c1N Ng5 Bf2 Bf1 e1N Qb3 h3 Ne2 Na6 b8B Qe3 b7 Ned3 Bc3 Nh6+ Kh5 Nc7 g8B Bd6 Nd4 Ne2 Rc1 Ne5 Bg2 Ne6 Rhd1 h1N Bc7 h2 b8R Ba6 Bf7 Bd3 Nc6 Rd8 Rb6 Nhg4 Nb8 Bh7 Qc2 Rb5 Bd4+ Kb4 f5 Ka3 Rc6 Rd5 Bcb6 Bg1 Bc7 Nc4 Qe4 Rb5 Ba7 Bf4 Ra6 Nhf2 Rdd6 Nce5 Bd4 Nd1 Bcb6 Rd5 Rc5 Bf2 Qc2 h1R+ Bh3 Nc4 Ne4 Rg1 Bg2 Nce5 Ng3
2q3k1/n1nB2QR/1K2N2b/n3b2R/1pN1pq2/B4rbR/2nB2Pr/B6n b - - 0 1 legal: proof: c4 d5 b4 dxc4 e4 f5 b5 fxe4 b6 axb6 Ke2 b5 Ke1 b4 h4 g5 a4 gxh4 Ne2 b5 Nf4 b3 Ne2 b4 Ng1 Be6 Ke2 Bd7 Ke1 Bb5 axb5 Ra5 Ba3 Ra7 Bc1 Ra8 Ke2 Kf7 Ke3 e5 f4 h5 d4 c5 f5 b2 b6 c3 f6 h3 d5 h4 b7 c2 d6 h2 d7 c4 Na3 b1N Qf3 h3 Bd3 c3 Qf1 Bd6 Nf3 Qc8 d8B Ne7 Rg1 h1Q Nb5 h2 Qe1 Nec6 Nc7 Ra3 Bb5 Na7 Bd7 Na6 b8R Kg8 Ne6 Nc7 Rb7 Rh7 Bb2 c1N Nd2 Nb3 Nc4 c2 Qc3 Na5 Re1 Rb3 Ra3 Qf1 Rb5 h1N f7+ Kh8 f8B Rh2 Rc5 Kg8 Bg5 Qf7 Bg7 c1B+ Ke2 e3 Kd3 e4+ Kd4 e2 Bd2 Bf4 Rh5 Be5+ Kc5 Qf4 Rg1 e1B Kb6 Bg3 Rf1 Qg4 Rf7 Qf4 Qd4 Rf3 Re3 Nc3 Ba3 Nd1 Rc3 Ne3 Bh8 Nc2 Rfh7 Bg7 Rb3 Bh6 Qf6 Bg7 Qe7 Bh6 Ba1 Bb2 Rb5 Re3 Qh4 Bf2 Rh5 Be5 Qe7 Bh4 Rd3 Rg3 Rd5 Rc3 Rd3 Be1 Rdh3 Rf3 Qf6 Bg3 Qg7+
1N2rNRN/2q5/3pr3/qbN1rP2/1b4nr/B3kQ2/Kp1b1RB1/1r3Bn1 b - - 0 1 legal: proof: h4 f5 e4 c5 exf5 a5 b4 axb4 d4 cxd4 a3 bxa3 Qd2 g5 Qd1 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 c4 b5 Kc2 h5 Kb3 b4 c5 h3 c6 d3 c7 d2 Bd3 e4 Bb5 a2 Nf3 h2 Ne5 h4 Nc3 h3 Qf1 d1R Nc4 e3 Qe1 e2 Be3 Rh4 Na5 Rd6 Nc6 Re6 Rc1 a1Q Na4 Nh6 Nc5 Qa5 Qd1 e1B Rg1 h1R Bf1 h2 Qf3 Bd2 Rc2 Ba6 c8N Qdc7 N8e7 Bb5 Ng6 Re5 Kb2 b3 Nh8 Re6 Kb1 b2 Rg2 Rg1 Rf2 h1R g5+ Kg7 g6 Kf6 g7 Rg5 g8B Ng4 Rc4 Bd6 Ra4 Rg1 Ka2 Rgh5 Nb3 B6b4 Nc5 d6 Bg2 Nd7 Nb8 Nde5 Bd4 Re8 Bc4 Rb1 Bcf1 Re6 Be3 Nf7 Ra3 Ng5 Ra4 Nh3 Ra3 Kg7 f6+ Kh6 f7 Ng1 f8N Rhe5 f5+ Kh5 Nbd7 Rae8 Nb8 Qab6 Bd4 Kg5 Ra8 Qba7+ Na4 Qaa5 Bc5 Bbc3 Ba3 Bb4 Qc6 Re2 Nc5 R2e5 Bf3 Kf4 B3g2+ Ke3 Qf3+ Kd4 Ra7 Qcb6 Rg7 Qc7 Qa8 Ke3 Rg8 Bd7 Qb7 Bb5 Qf3+
1B3qR1/1b3k2/1prb2nq/r1N1N1Rr/PR5B/1B1pb1Kb/8/2bBQ1n1 b - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 g5 h4 gxh4 exf5 a6 b5 axb5 Qd3 bxc4 Qd1 c3 f4 d5 Kf2 h5 g4 e5 a4 c2 f6 d3 f5 e4 g5 d4 g6 b6 g7 d2 Be2 e3+ Kg2 d3 Kh2 h3 Bf3 h4 Qe2 d1R Qf2 e2 Bf4 c1B Na3 e1B Nc4 Nc6 Rb1 Bd6 Ne2 Nd4 Nc3 Rh5 Rg1 Bed2 Rb4 Be3 Rg5 Kf7 Ne4 Qf8 Nc5 Ne2 Qe1 Ng1 Bg4 Ne7 g8B+ Ke8 Be5 Ng6 f7+ Ke7 Be2 Ra5 Bg3 Rd2 Be5 Rc2 f6+ Kd8 Bf4 Rc3 Bd1 Bg4 Kh1 h2 Kg2 h3+ Kg3 h1Q Be5 h2 Bf4 Qh6 f8B Ke8 Be7 Bh3 Bd8 Kf8 f7 Qa8 Be7+ Kg7 f8R h1B Bd8 Bb7 Bd5 Be6 Rg8+ Kf7 Be7 Qaf8 Bf6 Be7 Bb8 Rc2 Nd2 Rc3 B5b3 Rc2 Nc4 Bd6+ Re5 Bh3 Be7 Rf2 Bh4 Rf4 Rg5 Rf6+ Re5 Be7 Rd5 Rc6 Rg5 Bd6+ Ne5+
1bb3RQ/k4Nr1/6q1/2pn3B/2r1Rr2/pR2qN1r/BP1B4/qbn2K1R b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 e5 d4 cxd3 h4 exf4 h5 b5 axb5 g6 Na3 gxh5 Nb1 h4 e4 Kd7 g4 f5 e5 c5 e6+ Kc7 e7 Kb7 e8B h5 g5 a5 g6 a4 g7 a3 b6 d2+ Kf2 h3 Bg2+ f3 Qc2 d1B Bh6 f4 Ba4 h4 Bb5 h2 Bh3 Nd7 Ne2 Qf6 Qa4 Bc2 Ng1 Ne7 g8R Ra7 Rg6 Nd5 Kf1 f2 Bg7 Ne5 Bg2 h3 Qa5 Bd6 Bh6 Nd3 Bd7 Nc1 Nf3 Bb8 Rg8 Qg6 Bf8 Rh4 Nc3 Bb1 Be8 Ka8 Qb4 Rg7 b7+ Ka7 Ne4 Rg4 Qd4 Rh4 Rg1 h1Q Nd6 h2 Nf7 Rg4 Bh3 Rh4 Be6 Rg4 Ne1 Qhe4 Rh1 Qe3 Nf3 Rh4 Be7 Rh3 Bg5 Rh4 Rg1 h1R Qc3 R1h3 Rh1 Nb4 Ba2 Nd5 Kg2 f1R Qe5 Bc7 b8R Bd6 Rb4 Bb8 Rb3 Rf2+ Kg1 Rc2+ Kf1 Rc4 Bd8 Rg4 Ba5 Rgh4 Bd2 Rg4 Nd4 f3 Qh2 f2 Nf3 Rgd4 Qe5 Rdh4 Qh5 Rhf4 Qh8 Rg3 Rh4 Rh3 Rg4 Rf5 Rd4 Rf4 Re4 Nd3 Bd7 Bc2 Bg4 Rhh7 Kg2 f1Q+ Kg3 Qfe1+ Kg2 Rh3 Rd4 Qh4 Rf1 Qhe1 Rh1 Qa1 Re4 Bb1 Kf1 Nc1 Bh5
r1B1q1n1/2RN4/1N1r4/1P1nnb2/4bkNK/3nrp1N/1p1qR2B/q4QR1 b - - 0 1 illegal: No possible last move
q3nq2/3Br1N1/Prn5/BQ1rpN2/bR2B3/3p4/k2NqN1q/2K1b1bR b - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 g5 h4 gxh4 exf5 a6 b5 axb5 Qd3 bxc4 Qd1 c3 f4 Kf7 g4 b5 a4 h5 a5 e5 g5 d5 f6 Ke6 g6 h3 a6 b4 f7 h4 g7 h2 Ba3 c2 Kd2 c1B+ Kc2 b3+ Kd3 h3 Be2 b2 Kc2 d3+ Kc3 d2 Kc2 d4 f5+ Kd5 f6 d3+ Kc3 Rh7 Qf1 d1Q Bg4 Nc6 Bd7 Qe2 Bd6 Be3 Nd2 b1R Bc7 Rb6 Ra4 Bb4+ Kb2 Qf8 Kc1 Bb7 Qd1 Rd8 Qb3+ Kd4 Qd5+ Kc3 Qb5 Ba5 Rb4 Bf2 Ngf3 Bg1 Nh4 Bc8 Nf5 Bb7 Bc8 Rd5 Bd7 Bc8 Be6 Bd7 Bd8 Nge7 g8B Nc8 Bc7 Rg7 Bh7 Nd6 Bd8 Ne8 Bg6 Qh8 f8N Re7 f7 Qg7 Nh7 Qf8 Rf4 Bb4 Nf6 Ba5 Ng4 Bb4 Nb1+ Kb3 Nf2 Ka2 Bc7 Bc3 Rb4 Be1 Nd2 Nb8 Qc5 Ba4 Bd7 Nc6 Qb5 Rb7 Ba5 Rb6 Nd1 Bc5 Rg1 h1Q Nf2 h2 Rf1 Qg1 Bh7 h1Q Bg6 Qfh8 f8N Qgh2 Ne6 Qf8 Neg7 Qhf3 Rh1 Be3 Nh3 Bg1 Nf2 Nc7 Nc4 Qa8 Nd2 Ne8 Nh6 Qf7 Be4 Qf8 Nhf5
1nn1B3/2K1p1Q1/B5qp/2B2q1N/3R2b1/1NP3R1/nrbb2Rq/k1B1rn2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 Kf7 f4 Kf6 g4 d5 b6 e3+ Kd3 b3 f5 Ke5 b7 e2 g5 e1N+ Ke2 b2 f6 h3 g6 d3+ Ke3 d2 g7 d4+ Kf2 d3 Ke3 h2 f7 Nh6 g8B Qd5 Qh5+ Nf5+ Kf2 Kd4 Ra3 d1B Qh6 d2 Nh3 Nf3 Nf4 Nd6 Nh5 Bg4 Rg1 h1Q Rg2 Nh2 Rag3 Ra2 Na3 b1Q Ba6 Rb2 Nc4 Nf1 Na5 Qh2 Qg5 Bh6 f8R Qe5 Bf7 Nc8 Be8 Qd5 Rff3 Qf5 Qg6 Bf4 Re3 Rf8 Qg7+ Rf6 Re2 h6 Re5 Re6 Re4+ Kc5 Rd4 Re1 Rd7 Kb4 c3+ Ka3 Rd4 Ka2 Rgd3 Bc2 Rg3 Nd7 b8B Ka1 Ba7 Nb8 Re3 Qa2 Rh3 Qae6 Rg3 Qeg6 Bb6 Qh4 Bc5 d1N+ Kg1 Nde3 Kf2 Bh3 Kf3 Nd5 Rf2 Nb4 Re2 Qd7 Reg2 Bd2 Rgg4 Ne3 R4g3 Bg4+ Kf4 Na2 Ke5 Qa4 Qf8 Nf1+ Kd5 Qh2 Qg7 Nd7 Ba7 Qa3 Bc5 Qf5+ Kc6 Nb8+ Kc7 Qb3 Ba4 Qbe6 Be8 Qeg6 Nb3+
4bb1R/2PR1q1q/2pkr3/5b2/2rN2n1/q1RB1K1N/1nr1Q1p1/1RBq3B b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 Ra2 hxg4 Ra3 Qf6 Ra1 Qd8 c4 c5 b4 cxb4 c5 Qg5 Bh3 Qf6 Bf1 Qd8 c6 Bb7 c7 Ba6 Qc2 Bc8 Qc6 dxc6 Kf2 Kd7 h4 f5 d4 g5 e4 a5 d5 a4 e5 g3+ Kf3 b3 e6+ Kd6 b6 b2 e7 g2 e8B g4+ Kf2 a3 h5 f3 b7 a2 h6 g3+ Ke3 f2 h7 f4+ Ke2 f3+ Ke3 Nh6 Ke4 Qh4+ Ke3 Na6 b8R Nb4 Bd7 Ng4+ Ke4 Nd3 Na3 b1B Rb7 Nb2+ Bd3 f1Q Rh3 f2 Be6 Qd1 Nc2 f1Q Nd4 Qf7 Rb8 Rg8 h8R Bd7 Re8 Ra4 Re7 Qhh7+ Bf5 Bc2 Rb1 a1Q Bg6 Be8 Bf5 Qd2 Kf3 Rc4 Be4 Qa3+ Bd3 Kc5 d6 Rg6 d7 Re6 d8Q Qe1 Qb8 Kd6 Qb5 Qd2 Rh4 Qe1 Nh3 g1R Rh6 Rg2 Rf6 Re2 Be4 Qd1 Rf5 Nf6 Rc5 Rh2+ Kf4 Re2 Bh1 g2 Kf3 Ng4+ Nf4 Rb4 Rc3 Rc4 Qh5 Nf6 Nh3 Rd2+ Be2 Bf5 Qg4 Rc2 Qe4 Qe1 Bd3 Qd1+ Qe2 Ng4 Rd7+
RKn1q2R/p2pr3/B1r4R/3q1P2/1R1N1kq1/2Qnr1Bb/1bB5/4b1Nq b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 h4 g5 e4 gxh4 c3 dxc3 Ra5 fxe4 Ra4 Qc7 Ra1 Qd8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 e5+ Kd5 h5 f4 e3 b4 c2 g3 e2 b6 e1R b5 e4 b7 e3 b6 h3 Ra6 e2 Nc3 h2 Ra5 h4 Ra6 h3 Bb2 c1Q Qd4 Qd1 Nb5 Bg7 Kd6 Nc6 b8R Qe8 Kc7 Nge7 Qc3 Ne5 g4+ Ke4 g5 Nd3 g6 Rh6 f5 Kf4 Ba3 Bb7 Nd4 Bg2 b7 Nc8 Bd6+ Be5 g7 Re6 g8B Re7 Bd5 Qa4 Bf3 Rc1 Rb6 e1B Be4 Qd1 Bd5 Qg4 Rb4 Rc2 Bc4 Re2 Ba6 Re3 Be2 Bf1 Bd1 Bg2 Ngf3 Bf1 Bc2 Bg2 Rg1 h1Q Rf1 h2 Ng1+ Bf2 Rfb1 Be1 Rb6 Bh3 R1b4 Qd5 Rc6 Kg5 Rcb6 Bh8 Bg3 h1Q Rh6 Bg7 Bh4+ Kf4 Bf2 Nb6 Rd8 Nc8 b8R Qef7 Rdh8 Qe8 R8b6 Rb8 Rbg6 Bf6 Rgg8 Rb6 Bh4 Rbe6 Kb8 Rc6 Bg3+ Ke4 Qc5 Qef7 Ka8 Nd6 Nde2+ Bd4 Rgb8 Nc8 Kb7 Qe8 Ra8 Bg2 Kb8 Bh3 Rb6 Bb2 Nd4 Bbc3 Rb4 Bb2 Bf2 Ke5 Qc3 Kf4 Bg3+
1R1R4/bN1N4/K2n1rn1/3Q1N2/PpkbB3/b1n1qn2/1pB2NbB/2b1r3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Qc2 exf6 Qb2 f5 Qa3 f4 Qg3 fxg3 e4 Ke7 Ke2 Kd6 Kd3 Kc5 h4 f5 a4 g5 e5 b5 e6 f4 e7 b3 e8B b2 d6 f3 d7 g4 h5 f2 h6 Nc6 h7 Nh6 Bh5 Nf5 Ra2 Qe7 d8N Bb7 Kc3 Ra6 Na3 Nd6 Bd3 f1N Nc4 Ne3 Bhg6 Ne5 Nh3 g1N Nb6 g2 Bde4 g3 Nf2 Ngf3 Rd1 g1B d3 Rg8 h8N g2 Nhf7 Nd5+ Kb3 c6 Nh6 Nc3 Bf4 Qg5 Bh2 Qe3 Bgf5 Ng6 Nd7+ Kd4 Raa1 c5 Rab1 c4+ Kb4 Rg7 Rd2 Re7 Rdd1 Bc6 Nb7 Re6 Rd2 Rf6 Rdd1 Ra8 Rd2 Re8 Ka5 Ree6 Nh1 Bf2 Ka6 g1B Rdd1 Nc8 Rd2 Ba3 Rdd1 Nd6 Rd2 Bg3 Nf2 Be5 Rdd1 Ne2 Rd2 Kc3 Rdd1 Bd4 Rd2 Ba7 d4 Kb4 d5 c3 Bc2 Kc4 Bfe4 Re5 Nf5 b4 Rc1 Nf7 d6 Ree6 Bb1 c2 Rcd1 c1B Bbc2 Nc3 Rd5 Re8 Re5 Rh8 Re8 Rf8 Rb8 Re8 Ndc5 Re7 d7 Nd6 d8Q Qh6 Qg8+ Bd5 Nh3 Nd2 Bg2 Re1 Qe6 Nc8 Qd6 Bf2 Bf3 Be3 Nf2 Qh3 Bg4 Bg2 Bf3 Qh6 Bfe4 Nf3 Rd5 Bd4 Qe6 Qe3 Rd8+ Nd5 Nd7 Nd6 Qe5 Nc3 Qd5+
R3nb2/1nb2nrp/1Bbk1q2/bN1p1R1K/r2b1P1B/1nN5/1B2N1N1/Q7 b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 a4 cxd4 c3 g5 Bc4 gxh4 Bb3 b5 axb5 d3 Bc2 dxc2 Ke2 a5 f4 d5 g4 Kd7 b4 e5 c4 h3 b6 h2 b7 e3 Kf3 a4 b5 e2 c5 e1B g5 e4+ Kg4 e3 b6 a3 c6+ Kd6+ Kh5 e2 c7 a2 g6 Nh6 g7 Na6 b8B Nf7 g8N Bb7 Ba7 Qf6 Ne7 Bc6 b7 Rg8 b8B Rg7 Bb2 c1N Nc3 Nc5 Bb6 N1b3 Ng6 Nb7 Nh4 Ra4 B8a7 Bf2 Ng2 e1B Nge2 Bd4 Rg1 h1N Qb1 Nf2 c8N+ Kd7 Qd1 Ng4 Nd6 Be5 Ndb5 Bc7 Bf2 Ke7 Bab6 Ke6 Ne4 Ba5 Bh4 Ke7 N4c3 Kd7 Rb1 a1B Qe1 Nge5 Rd1 Nfd6 Rd4 Ne8 Rh1 Ra3 Ra4 Nf7 Rh3 Ke6 Re3+ Kd7 Re5 Ra2 Rf5 Ke6 Re4+ Kd7 Re6 Ra4 Rd6+ Ke7 Rd8 Ke6 Ra8 Kd7 Ba3 Bb2 Qa1 Ke6 Nd1 Bd4 Bb2 Kd7 Ndc3 Ke7 Na3 Kd6 Nab5+
1k2r1n1/p2P2RB/3b1bN1/2p1NR2/2bBb2b/3Q4/1r2q1Nb/2KnR1qN b - - 0 1 legal: proof: g4 e5 f4 exf4 e4 fxe3 c4 h5 a4 hxg4 c5 b5 axb5 d6 Ne2 dxc5 Ng1 c4 b4 Kd7 d4 g5 h4 f5 h5 e2 Kd2 e1B+ Kc2 Rh6 d5 c5 b6 g3 b7 Kc7 b5 c3 Be2 g4 Nh3 g2 Be3 g1Q Nd2 f4 Rh2 f3 Nf1 f2 Bd3 Nc6 b8N Nce7 Ng3 f1B Nc6 Bb7 Rf2 Nf5 Nf4 Qe7 Nh1 Re8 d6+ Kc8 Be4 Bc4 b6 Re6 Rf1 Bh4 h6 Re5 Kb1 c2+ Kb2 Rd5 h7 Rd2 Bd4 Ne3 h8N Bg7 Ng2 c1B+ Kb1 Ra2 Bh7 Bb2 Ng6 Bf8 Bg7 Be5 Qd3 Rb2+ Kc1 Bh2 Bd4 Be5 Rb1 Bef6 Ra1 Qe4 Nce5 Qf3 Rb1 Be4 Ra1 Qe2 b7+ Kd8 Nf3 Kd7 b8R Kc6 Rd8 Kb7 Rd7+ Kb8 Rg7 B8e7 d7 Bf8 Ra3 Bd6 Re1 Nd1 Qe3 g3 N2f4 g2 Nfe5 Bf8 Qh3 Bd6 Rf3 Qgf2 Qg3 g1B Ng2 Bh2 Rf5 Qg1 Qd3
4n1b1/2RR4/kn3b1R/2KNNP2/4rbqB/1bBp4/q2Qr1Rp/2q2q1B b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 e5 g4 h5 f4 d5 c4 Kd7 g5 Kc7 c5 Kb7 f5 b3 b6 d3 Kc3 h3 Kb4 d4 g6 d2 g7 h4 Kc4 d3 Ba3 h2 c6+ Ka6 b7 h3 c7 b2 Ne2 e3 Qb3 d1B Qb4 e4 Qc5 Rh4 Ra2 Bd6 Ng3 e2 Kd5 e1B Qe3 Bc3 Qh6 e3 Qf4 e2 Nh5 e1Q Qd2 Bf4+ Kc5 Nf6 g8R Ne8 Bg2 Be6 c8R Bdb3 Rc7 Qg5 Rgg7 Qc1 Rgd7 Bf6+ Nc3 b1Q Rc2 Rg4 Bb4 Bg8 Nd5 Qa2 Bc3 Qh4 Bf3 Rg2 Rb2 Re2 Bg2 Qg4 Be4 Nc6 b8B Na5 Bg2 Nc4 Ba7 B4g5 Nhf4 Nb6 Ng6 Bf4 Ne5 Rc8 Rg1 Qf1 Bh1 Rb8 Rg2 Rd8 Rg7 Rd6 Rgd7 Re6 Ng6 R6e4 Ne5 Qgf3 Rg6 Qg4 Rh6 Qc1 Bg2 h1Q Bf3 Qh2 Bh1 Qhg2 Qd1 h2 Kc6 Na8 Bf2 Re1 Kc5 Nb6 Bh4 Qf1 Rg2 R1e2 Qd2
4Rb1N/K1N1qk1q/1p1P3B/1rn5/br6/rN1RQB1p/2R2rqq/n2N4 b - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 Kf2 c5 d4 h5 g4 f5 e4 a2 e5 b6 g5 f3 Ke3 f2 e6 f4+ Kd3 h3 Kc4 f3 Kb5 h4 g6 h2 g7 h3 e7 c4 d6 c3 d7+ Kf7 e8R c2 d5 Nh6 g8N Ng4 d6 Qe7 Bd3 f1Q Bh6 c1Q Be2 f2 Nc3 Ra4 Qe1 Qc2 Rb1 a1R Rb2 R1a3 Nf3 Ne3 Nd4 Qh7 Nb3 Nc2 Nd1 Qg2 Bf3 f1R Qe3 Na1 Rc2 Rf2 Rg1 h1Q d8N+ Kg6 Re1 Qhh2 Ne6 Na6 Nc7 Nc5 Ree2 Be6 Red2 Kf7 Rd3 Rb4+ Kc6 Na4 Kb7 Bd7 Ka7 Nc5+ Na6 Ba4+ Nc7 Qee4 Ne7 Qee5 Ng6 Qe7 Rcc3 Rb5 Rc2 Rg8 Nh4 Rg4 Ng6 Rgb4 Nh8+
2R5/1p1kb2R/b2n1N1K/nnqn1pPN/1R6/2N1bNQr/5b2/1q2B1rB b - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 b4 gxh4 a4 d5 cxd5 a6 b5 axb5 Nf3 bxa4 Ng1 a3 Kf2 c5 Kf3 f5 d4 h5 e4 a2 g4 c4 g5 h3 d6 h4 d5 h2 e5 c3 e6 c2 e7 h3 Bd3 Qa5 Bd2 c1B Qe1 Be6 Qh4 Nc6 Bc3 Nh6 Qf2 Be3 Bb4 Kd7 e8R Be7 Rc8 Qc5 Be4 Nf7 Nc3 Na5 Rb1 a1B Qg3 Ra6 Nb5 Baf6 Be1 Bfd4 Nc3 Bf2 Rb4 Bde3 Nge2 Rh7 Nd4 Rh5 Ndb5 Ra8 Nc7 Ra7 Ne8 Rh6 Rg1 h1Q+ Rg2 Qf1 Rh2 Qd3 Rh1 h2 Kg2 Qb1 Bf3 Rg6 Kh3 Rf6 Bg2 f3 Kh4 Rg6 Kh5 Rg8 Ng7 Rh8+ Kg6 Rh3 Nh5 Bg1 Kh7 f2 Bf3 f1N Bg2 Ne5 Kh6 Nec4 Be4 Na3 Bf3 Bd8 Be4 Bgf2 Bg2 Ke8 d7+ Ke7 Be4 Nb5 Bg2 Bg8 d6+ Ke6 Bf3 Be7 d8N+ Kd7 Nc6 Bc4 Nd4 Ra8 Be4 Ra6 Nf3 Ra7 Rg1 h1N Rg2 Bd3 Rh2 Bc4 Qh4 Nhg3 Nf6+ Ke6 Bc6 Ne4 d7 Ned6 Be4 Na3 Bc6 Ba6 Rh1 Nab5 Be4 Ndc4 d8N+ Kd6 Ne6 Ra8 Nh5 Kd7 Qg3 Ncd6 Nf4 Ra7 Nfd5 Ra8 Rh8 Re8 Rh7 Rh8 Rg1 Rh1 Rg2 Rg1 Ndf6+ Ke6 Kg6 Qd5 Rh6 Nac4 Nd2 Bf4 Nd1 Bb6 Rh2 Na5 Bh1 Ne3 Nf3 Qc6 Rc2 Nd5 Rc5 Bd2 Nc3 Bc1 Rcc4 Bf2 Kg7 Qb6 Rc8 Bce3 Kg6 Qc5 Kg7 Ndc4 Nf4+ Kd6 Rg6 Rh5 Rh6 Rh3 N4h5+ Ke6 Rh7 Ncd6 Ne8 Kd7 Kg6 Qc6 Kh6 Qc5 Nf6+
bN3qrr/p3B2q/1BR1kPb1/3n1r2/R3nQ1b/2r2B1R/1N5p/K1b2R2 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Bd2 cxd4 Bf4 Na6 Bc1 Nb8 h4 g5 e4 gxh4 c3 dxc3 Ra5 fxe4 Ra4 Qc7 Ra1 Qd8 g4 Kf7 f4 e5 b4 d5 g5 h5 b6 h3 f5 e3 b5 e4 f6 e2 b7 d4 b6 d3 g6+ Ke6 g7 c2 Kd2 e1B+ Ke3 d2 Ba3 c1R Bg2 h4 Nf3 h2 Rf1 h1Q Ne5 h3 Nc6 Bh4 Nc3 Ne7 g8R Nd5+ Kd4 e3 Rg3 e2 Be7 e1R Qa4 d1B Bf3 Na6 b8R Bh6 b7 Bc2 Nd1 Nc5 Nb2 Qf8 Kc4 h2 Rh3 Re5 Ra3 Bd7 Rc8 Rf5 b8B Ne4 Bc7 B6g5 Nb8 Bc6 Ra2 Bb1+ Kd4 Rc3 Bb6 Bc1 Qb4 Qg2 Ra4 Qgg7 Qc4 Bb7 Qc7 Qh7 Qf4 Qd8 Rc6+ Qd6 Nd7 Rag8 Nb8 Bc2 Bc7 Ba8 Bb6 Re3 Kc4 Bd3+ Kb3 Bc2+ Ka2 Rc3 Rc8 Qd8 Ka1 Qf8 Rac4 Ba4 R8c5 Be8 Ra4 Bg6 Rc6+
1b6/nbRq3B/1nRN1K2/Bbn1NQNk/p2bP3/6B1/1q2r2p/1N3qb1 b - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 g5 f4 b5 f5 bxa4 f6 exf6 Rh2 f5 Rh3 Ra6 Rh1 Rg6 Nd2 fxg4 Nb1 g3 Qd2 g4 Qd1 Rg5 hxg5 Bd6 Qd2 Be7 Qd1 Bf8 Kd2 f5 Kd3 Kf7 b4 Kg6 e4 h5 c4 d5 c5 g2 c6 h4 c7 a3 b5 h3 b6 f4 b7 f3 Qd2 f2 Qa2 g3 Bf4 a4 Rh2 Kh5 g6 Na6 b8B Bb7 c8N Ne7 g7 Qd7 g8N Nc5+ Kc2 d3+ Kc3 d2 Kd4 d1Q+ Ke5 d4 Bh6 d3 Qb2 d2 Ne2 g1B Kf6 a2 Nd4 g2 Qb6 Nc6 Bc4 f1B Nge7 Na7 Ng6 Bd6 Ne6 Bd4+ Ne5 g1B Ng5 Qe2 Qa6 d1N Qb5 Ne3 Bg8 Qb2 Bh7 Nc4 Rc2 Nb6 Rc3 Bc7 Nd6 h2 Bf8 Rg8 Be7 Bd3 Bd8 Be2 Qa5 Bb5 Rc2 Nd3 Rc6 Nc5 Ne6 Rg2 Ng5 B5a6 Qb5 Rd2 Qf1 Re2 Qf5 Bb5 Nc3 Na8 Rc1 a1Q Rc2 Qf1 Nb1 Ba5 Bdc7 Nb6 Rc1 Be1 Rc3 Bg3 Rc1 Nc4 Ba5 Nb6 Rc7 Nd3 R1c6 Nc5 Bb4 Bf4 Ba5 Qfc1 Nc4 Kh4 Rc8 B7a6 Bd6 Nb7 Bdb4 Qd1 Be1+ Kh5 Bg3 Nc5 Bc3 Bdf2 Nd3 Bb8 Nde5 Qf1 R8c7 Bb7 Nd6 Bd4 Ba5
2N3qB/2k1n1n1/npq1r1pP/6r1/4rnb1/2R1N1B1/2B1NQ1n/1qNK2R1 b - - 0 1 legal: proof: b4 c5 a4 e5 d4 cxd4 g4 h5 f4 hxg4 a5 exf4 a6 Bd6 b5 Bc7 b6 axb6 a7 b5 Qd3 Na6 Qd1 Bb8 axb8B b4 c4 f5 e4 d5 h4 Rh5 c5 Kd7 e5 f3 Qe2 f4 Qd1 b3 Bd3 g3 Nc3 b2 Qd2 g2 Qe3 f2+ Kd1 f1Q+ Kd2 f3 Ba7 f2 Nf3 g1N Bb6 Nh3 Na4 Qg2 Rf1 Nf4 Nc3 Rb8 Bb1 g6 Ra3 d3 Na2 d4 Ng1 Rg5 Bc2 b1Q h5 Ra8 Ba5 b6 h6 Rb8 Rd1 f1N+ Ke1 Qe8 Bb2 Nh2 c6+ Kd8 Bbc3 Bg4 e6 Kc8 c7 Qgc6 e7 d2+ Kf2 d3 Bh8 Qf7 e8N Qfe6 Rf1 d1R Nc1 d2 Ng7 Re1 Nf5 Qf7 Qf3 Re4 Nge2 d1N+ Ke1 Ne3 Rg1 Kd7 Rb3 Rbe8 c8N R8e6 Bd2 Qh7 Rc3 Ne7 Qg3 Qg8 Qh4 Nef1 Ne3 Kc7 Kd1 Ng3 Be1 Ngf5 Qg3 Ng7 Qg2 Qf8 Bg3 Qg8 Qf2
k3b1Br/4pN2/N1Rq3n/5q2/QN6/1KN1q1rP/BRrp2bR/2b1rr2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 g4 fxe4 f4 a5 f5 axb4 Bg5 h6 Bc1 Nc6 g5 Ne5 Bf4 Ng4 Be3 N4f6 gxf6 Qc7 Bf4 Qd8 Bg5 hxg5 Kd2 b5 c4 d5 Kc2 Kd7 a4 Kc6 h3 Kb7 c5 g4 a5 g5 f7 e3 f6 d3+ Kb2 e2 Nd2 e1R Nc4 b3 Nd2 g3 Qb1 g4 Ne2 b4 Qc2 g2 Ra2 g1R Nf3 d2 Nfd4 d1R Rh2 g3 Nc6 g2 Nc3 d4 Bc4 Bh6 f8R d3 f7 Qd6 Be6 Ra7 a6+ Ka8 Rd8 Ref1 f8N Rde1 Nd7 Rc7 Ndb8 Bd7 a7 Be8 Rc8 Be3 Qd1 Nh6 Bg8 Bd2 Qg4 Bg5 Qc4 Bf4 Qb5 Bg5 Qa4 Bc1+ Ka1 d2 Na6+ Kb7 Kb1 b2 Kc2 b1B+ Kb3 Be4 Rb2 Bf3 a8N Be4 Ne5 Ka7 c6 Bf3 Kc4 b3 Nb6 Be4 Nf7 Bf3 Rc2 b2 Nbd5 b1Q Rb2 Qf5 Kb3 Be4 Rb8 Rc8 Rb6 Ka8 c7 Rh1 Ng5 g1Q Nf7 Bg2 Rc6 Qe3 Ndb4 Rhg1 Rb1 Rb8 c8B Rb5 Be6 Rc5 Rb2 Rc4 Nd3 Rc5 Nb1 Rc2 Nc3 Rf3 Ndb4 Rgf1 Ka3 Rg3 Ba2 Qff4 Kb3 Qg5 Qa5 Qf5 Qa4
n2b3q/2r3PB/K1N3p1/2NB2Qr/BrpNqq1R/4k1N1/r4Rr1/5br1 b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 h4 d5 d4 g6 h5 Nd7 h6 dxc4 d5 Nb8 Be3 Na6 Bd4 exd4 Nh3 Nc5 Ng1 Ne6 g5 Ng7 hxg7 f6 Rh4 fxg5 Rh1 g4 a3 c3 e4 Ke7 Ke2 Kf6 Kd3 Kg5 Kc4 Kf4 Kb5 h5 d6 c5 a4 g3 d7 c4 f3 g2 a5 d3 e5 b3 a6 h4 e6 c2 a7 c1Q e7 d2 e8B b2 Ra3 h3 Qe1 d1R Ra1 h2 Ra2 Ne7 Qb4 Rh5+ Qc5 Rd2 Na3 Nd5 Nc2 Be7 Nd4 b1R+ Rb2 Nb6 Nge2+ Ke3 f4 g1R f5 Kd3 Bf7 Qh8 d8N Bf6 N8c6 Bd8 f6 Bh3 Qg5 Ra1 Qe5 Rc8 Bg2 Rc7 Bgd5 Bf1 Qg5 Ra2 Ng3 Na8 Bg8 Re2 f7 Qf4 f8N Ke3 Nfe6 b6 Kb4 b5 Bh7 Rc2 Kc5 b4 Kb5 b3 Nc5 Re2 Rc2 b2 Rd2 b1Q+ Rb2 Qe4 Rd2 Rb2+ Ka6 Rgg2 Rc2 Rb4 Rb2 Re1 Rf2 Re2 Ne5 Nb6 a8B Reb2 Bac6 Ra2+ Ba4 Na8 Rg1 h1R Nec6 R1h4 Rh1 Rg1 Bhg8 Rh2 Bh7 Rhg2 Rh4
1b5b/R1Q2N2/1q1N4/1nn1k2r/P1b1N1B1/R1p3Rb/B2p2bn/2RKnq2 b - - 0 1 legal: proof: f4 a5 c4 e5 d4 g5 e4 b5 h4 gxh4 d5 Ra6 b4 axb4 Be3 Rc6 f5 Re6 Bd4 exd4 e5 d6 c5 dxc5 fxe6 c4 a4 Ke7 g4 c5 g5 f5 g6 h5 g7 b3 Rh3 b2 Be2 c3 Qc1 c4 Qd2 f4 Na3 b1N Qa2 f3 Rh1 h3 Qc2 d3 Ra2 d2+ Kd1 f2 Qc1 f1B Qc2 b4 Ra1 h2 Qb2 h4 Nh3 b3 Rg1 h1N Nf2 h3 Rg2 h2 Qc1 b2 Qc2 Nd7 Rg6 Qb6 Rf6 Rh5 Nh3 Nc5 Rg6 Nf6 g8B Ng4 Nb5 Na3 Rc1 b1Q Nd6 Nb5 Ng5 Bg7 Nge4 Bh8 Bf7 Bh3 Rg5 Ba6 Rg7 Nd3 Rg8 Ng3 Ra8 h1B Ra7+ Qc7 Bg8 Nh2 Bg4 Ne1 Nf7 B1g2 d6+ Kf8 d7 Kg7 d8R Qb6 e7 Qa1 Nc5 Ne4 e6 Kf6 e8R Qb1 e7 Qa1 Nd3 Nc5 Nf2 Qb1 Rd3 Qa1 Ng5 Ke5 Rg3 Qb1 Qh7 Qf5 Nfe4 c2+ Ke2 Qf7 Rf8 Qf4 e8N c3 Ba2 Qf7 N8d6 Qf4 Ra1 c1B Kd1 Qf1 Qc7 Ba3 Rb8 Nd4 Rb1 Bc4 Rb3 Bb4 Ra3 Nb5 Rg8 Nd7 Rg7 Bc5 Rg6 Be3 Rf6 Nc5 Rf2 Bf4 Rff3 Qg1 Rf1 Qf2 Rh1 Qf1 Ngf7+ Kd4 Qb7 Qf2 Nc8 Nef3 Kc2 Bb8 Rc1 Qf1 Qc7 Ne1+ Kd1 Kd5 Ncd6 Kd4 Nd8 Ke5 N8f7+
2kN3b/NRB1brp1/1KBrb1P1/2pq2R1/qb6/R2qq1B1/n5q1/5BQ1 b - - 0 1 illegal: Other
2rn4/1N1KnNB1/p1p1B1b1/1k1NRr2/1nn3B1/NbQrr2P/8/b2b3R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Qb3 h3 Qd1 exf6 Nf3 f5 Ng1 f4 e3 h5 Ne2 h4 Ng3 h2 Bd3 h3 Rf1 h1B Ne2 h2 Rf3 Qh4+ Rf2 Qh3 gxh3 Bc5 Qb3 Bb4 Qd1 Bf8 b4 Kd7 e4 Kc6 e5 f5 e6 f3 e7 a6 Ng3 c3 Bc2 a3 d4 f4 d5+ Kb5 e8B+ Nc6 d6 a2 d7 Nge7 d8N Bg4 Bf7 Rc8 Nb7 Bg7 Ne4 Rhd8 Qd2 Rd3 Bd1 c2 Bb2 c1R Be6 Rcc3 Re2 Nd8 Kf2 c6 Nf6 Bg2 Qe1 h1B Nd5 Re3 Qd2 Rcd3 Be5 Bf5 Qc3 Bg6 Re1 Bh8 Bg7 Bf1 Nd2 Bhg2 Nc4 Be2 Rb1 a1N Rc1 Nc2 Na3+ Ka4 b5 Bh1 b6 Bg2 Kg1 f2+ Kh2 f3 Kg3 f1R Kg4 f2+ Kf4 Beh5 Bdg4 Nb4 Ra1 B2e4 Ke5 Bf7 Kd6 Beg6 Kd7 Bg8 Bgf5 Bd1 Bg4 B8f7 Nc2+ Kb5 Re2 Rf3 Re5 Rf5 Rb1 Re1 Ra1 f1N Na3+ Ka4 Rc1 Ree3 Ra1 Nd2 Rc1 Bc2 Rh1 Bg8 Na5 Bd1 b7 Nc4 b8N B8h7 Nb7 Bb3 Nd6 Bh5 Nf7 B7g6 Ke8 Ka5 Nd7 Ka4 Nc5+ Ka5 Nc2 Kb5 Nb7 Rf2 Bgf5 Bd1 Bg4 Rf5 Bf8 Bf6 Bg7 Bh4 Kd7 Be1 Qb2 Bc3 Qc1 Ba1 Qd2 Na2 Qc3 Nb4 Na3+
3nb3/3b1p1r/BKRB1B2/3b1b2/2Pp1N1r/kNp1bR1B/1q1R4/2Q1nn2 b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Qb3 gxh4 Qc3 b5 axb5 dxc3 Kf2 Ke7 e4 Kd6 b4 a5 g4 h5 b6 f3 Ke3 a4 Kd4 f2 g5 a3 g6 a2 b7 h3 g7 h2 b5 h4 b6 h3 Ne2 Nh6 g8B Ng4 Bg5 Ne3 Bg2 f1B Bh7 Bh6 Bg6 Rh7 Nf4 Bd3 Rd1 h1B Bf6 h2 Bf5 Nf1 Bgh3 Ra5 Be6 Rh5 Nd2 Rh4 e5+ Kc6 Beg4 d5 e6 Bf5 e7 Bcd7 e8R Bhe4 Rh8 h1B Nb3 Beg2 Rac1 a1N Rd2 Qe8 Rcd1 Qe2 Rc8+ Kd6 Rd3 Qb2 R1d2 Be8 Rc5 Bge4 Rc8 Bfd7 Rf3 Bef5 Rc5 Na6 Rc7 Nc5 b8Q Nb7 Qa8 Nd8 b7 Bg5 b8B Bh6 Qa2 Bg5 Qb1 Bg2 Ra7+ Kc6 Qc1 Nc2+ Ke5 d4 Rc7+ Kb6 Kd5 Ne1 Rc8 Ka6 Kc5 Bh1 Bd6 Bg2 Na1 Ka5 Rc6 Ka4 Nb3 Ka3 Kb6+ Ka4 Nd5 Be3 Nf4 Bfe6 Rc5 Ka3 Bf5 Bh1 Be4 Bg4 Bb7 Bgf5 Ba6 Bg2 Rff2 Ba8 Rf3 Bd5 Rc6+
1R1N4/n3Q1K1/B1p2Pb1/4q1r1/R2pkn1N/qRBb3B/qprR2q1/4b3 b - - 0 1 legal: proof: c4 g5 d4 f5 h4 gxh4 b4 f4 b5 f3 b6 axb6 c5 bxc5 exf3 cxd4 f4 d3 f5 d2+ Ke2 Bh6 Nh3 Bg7 Ng1 Bf8 Kd3 Kf7 Kd4 Kf6 g4 b5 a4 h5 f4 e5+ Kd5 h3 a5 b4 a6 h2 a7 e4 Ba3 e3 Qa4 d1B Qb5 b3 Qb4 e2 Nd2 e1Q Qb7 b2 Qb4 h4 Ndf3 h3 Ng5 Nc6 Nf7 Qde7 Nd8 Bc2 Rd1 Rh5 Nf3 Bd3 Nh4 Rg5 Rd2 d6 Rg1 h1Q+ Bg2 Rb8 a8R h2 Ra4 Na7 Rf1 Q1e2 Rf3 Qb1 Bh3 h1Q Qc5 Rb3 Bb4 c6+ Kd4 d5 Bc3 Qa2 Rg3 Kg7 f6+ Kh7 f5 Qhg2 f7 Nf6 Qb4 Nh5 f6 Bh6 f8R Bcf5 Re3 Qc5+ Ke5 Bg6+ Ke6 d4 Rg8 Bf8 Qb7+ Kh6 Qe7 Qca3 Rh8+ Bh7 Kf7 Nf4 Rg3 Qe5 Rf3 Rh5 Rg3 Kg5 Re3 Bhg6+ Kg8 Ne6 Rg3 Kf4 g5 Ke4 Rf3 Bf5 g6 Nf4 g7 Rg5 Kf7 Bh7 g8B Bf5 Bh7 Bh6 Rf8 Bg6+ Kg8 Rb5+ Kh8 Rb4 Bg8 Rb5 Bc4 Rc5 Ba6 Rc4 Nf7 Rc5 Rb8 Rc4 Nd8 Bf8 Qb7 Bb4 Kg7 Ba5 Bb4 Rc2 Qe7 Bc4 Rb3 Bd3 Bd6 Bb4 Bc7 Bc3 Ba5 Bb4 Rf2 Bd2 Bc3 Be1 Rd2
q2B2Nq/nqbBNR1p/3pr1RB/1k2Bq2/r2Q1n2/nP2KNp1/8/4b3 b - - 0 1 legal: proof: g4 b5 a4 bxa4 d4 f5 e4 fxe4 f4 c5 f5 cxd4 h4 Ba6 h5 Bc4 h6 Be6 f6 Bf5 gxf5 Qc7 Ra3 Qf4 Ra2 Qxh6 Ra1 Qh2 c4 g5 b3 a5 c5 e5 c6 a3 c7 a2 c8N d3 Ne7 a4 Qd2 g4 Nc3 e3 Qb2 g3 Nce2 d2+ Kd1 a3 Nf4 e4 Ng2 e2+ Kc2 e1N+ Kc3 d1Q Nd5 e3 Ne2 Qh5 Rg1 Bd6 Nd4 e2 Nge3 Ra4 Nf3 Nc2 Bh3 Nc6 Ne7 Na7 Rf1 Qd5 Ng4 Qb7 Kd2 Bc7 Qd4 e1B+ Ke2 Kd8 f7 Nf6 f8B Nd5 f6 Qf5 Bfh6 Re8 f7 d6 f8B Kd7 Bcf4 Ra6 Be5 Ra4 Rc1 a1Q Rh1 a2 Nf6+ Kd8 Bg4 Na3 Nfg8 Nf4+ Ke3 Kd7 Rc2 Qb2 Rf2 a1Q Bg5 Qaa2 Rh6 Qaa1 Rg6 Qaa2 Nd5 Kc6 Bfh6 Re6 Bd8 Kb5 Nde7 Qbc2 Rh2 Qab2 Rh5 Qcc6 Rhg5 Qa8 Rf6 Qcb7 Rf7 Qf6 Bf5 Qh8 Rg6 Qc2 Be4 Qb1 Bd5 Qf5 Bc6+ Ka5 Bd7 Ka6 Nc6 Kb5 Nce7+
1N1rb3/qB4pB/2rb1R1n/2Nn3Q/1P2rpqk/1b5N/1pb1R2N/B4K2 b - - 0 1 legal: proof: b4 c5 d4 cxd4 g4 e5 a4 b5 f4 exf4 Qd3 bxa4 Qb3 h5 gxh5 axb3 h4 Ke7 c4 Kf6 e4 d5 h6 a5 h5 Kg5 e5 f5 c5 a4 e6 d3 c6 a3 c7 a2 e7 d2+ Ke2 d4 e8N Bd7 c8B Bd6 h7 Ra6 h6 Nc6 Nc7 Be8 Bb2 Nce7 Nh3+ Kh4 Ne6 Rc6 Nc5 Qd7 Bb7 Nd5 Rh2 d1B+ Kf2 d3 Nd2 Bc2 Nf3+ Kg4 Bg2 d2 Rf1 d1B Ba1 Qe6 Bh1 Qg6 Ke1 Kh5 Rd2 Qg4 Nh2 Kh4 Be4 f3 Re2 f2+ Kd2 Ngf6 Bd3 Rf8 h8N Ng8 h7 Nh6 Nf7 Rg8 h8Q f4 Rg1 f1Q Ne5 Qf2 Ned7 Qd4 Ke1 Rf8 Na6 Qa7 Kf1 Rg8 Bh7 Rf8 Be5 a1R Ndc5 Rb1 Ba1 b2 Rgg2 Bb3 Nb8 Bdc2+ Re1 Rd1 Re2 Rd4 Re6 Re4 Re2 Bh5 Rg6 Rd8 Rf6 Bg6 Qe8 Bf7 Qe5 Be8 Qh5+
B5q1/b3p1B1/1R1rNrk1/4n2p/pqr1P2Q/bbB1K3/3R1N2/B1n2b1N b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 g4 f5 c3 dxc3 h3 fxg4 Ra2 gxh3 Ra5 Bb7 Ra1 Bc8 b4 Kf7 f4 h5 Kf2 d5 e4 a5 f5 g5 b6 a4 b7 c2 b5 g4 b6 h2 f6 g3+ Ke3 d4+ Kd3 g2 Bd2 c1R Qb3+ Kg6 f7 Nc6 b8N Bh6 f8B Nf6 b7 Bh3 Bg7 Nd5 Ra2 Rc4 Nd7 Rf8 b8B Rf6 Nc5 Ra6 Ne6 Nc3 Be5 Ne2 Nc3 Qg8 Nd1 Be3 Bc3 Bc1 Rc2 Ba3 Nf2 Nc1+ Kd2 d3 Ke3 d2 Ne2 d1B Ng3 g1B Rd2 Bc2 Ba1 Bd1 Bec3 Ne5 Qb2 Bb3 Be2 Rc5 Bb5 Bf1 Bc6 Rc4 Ba8 Rd6 Qc2 Rb4 Qd1 Rc4 Qe1 Rc5 Rd5 Ne2 Kd2 Bh3 Nd1 Bc2 Nb2 Rc4 Nd3 Ba7 Rd4 Bg2 Ke3 Bh3 Rf1 h1Q Qf2 Qh2 Rb1 Nc1 Nh1 Bf1 Qh4 Bd1 Rb7 Qb2 Rb6 Qb4 Ndf2 Bb3 Rd2
NRb2bB1/1p3np1/rb1kp3/4nnbN/6n1/2P2BRB/1r2Q1q1/1NB1K3 b - - 0 1 legal: proof: b4 h5 a4 c5 bxc5 Qa5 g4 hxg4 e4 Qxa4 d4 Qa2 e5 e6 d5 exd5 e6 d4 Qe2 Ke7 Qe3 Kf6 e7 Kg6 Qe6+ fxe6 Nh3 Kf6 Ng1 Kf7 e8B+ Ke7 f4 a5 h4 d5 c6 a4 c7 d3 h5 a3 f5 g3 h6 g2 f6+ Kd6 h7 d4 f7 Nc6 Rh6 Ne5 Rg6 Ra6 Ne2 g1B Bh3 Nh6 Nf4 Qd5 Rg5 a2 Nh5 Qg2 Rg3 Be3 Bc6 Bg5 Bf3 d2+ Kd1 Bfe7 f8N Nhf7 Nd7 Rd8 h8Q Bf8 Nb6 Rd7 Na3 Rd8 Na8 Rd7 Rb1 a1B Qh7 Bc3 Qd3 Ba5 c3 Bb6 Ra1 Rd8 Qe2 Rd7 Kc2 d1N Nb1 Ne3+ Kd2 d3 Ke1 N3g4 Ra4 Ke7 Rf4 Rd5 Rd4 Rb5 Rd8 Rb2 Re8+ Kd6 Rd8+ Bd7 Rb8 d2+ Kd1 Bb5 c8B Bc6 Bd7 Bb5 Be8 Bd7 Qf2 Bc8 Ke2 d1N+ Ke1 Nde3 Qe2 Nfh6 Bf7 Nef5 Bg8 Nhf7 Be3 Nf6 Bf4 Ng4 Bc1
K3bR2/3kB3/1R1N3b/pNbp1BQP/r1N1NB1b/1q2q3/4r1pn/4r1q1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 b5 a4 bxa4 g4 e5 c4 exf4 b5 Na6 g5 Nc7 b6 Nb5 g6 hxg6 cxb5 g5 Ra2 g4 Ra3 Rh7 Ra1 Rh8 Kf2 d5 e4 f5 h4 g5 h5 d3 b7 d2 b8B f3 Ke3 a3 Kd4 f4 b6 g3 b7 g2 e5 f2 e6 a2 e7 f3 Kc5 g4 Kc6 g3 Rh2 Bd7+ Kc5 Bh6 Bf4 Nf6 b8N Ng4 Nh3 g1B Bd3 f1R+ Nf2 Re1 Nc6 Qb6+ Kd6 a6 Ne4 f2 Nbc3 f1Q Ba3 Qe3 Rb1 a1B Rf2 g2 Kc7 Nh2 Qg4 d1Q Kb7 Qb3+ Nb5 Bf6 Ne5 Bh4 Nc4 Rg8 Rbb2 a5 Qf5 Rg4 Qg5 Ra6 Rf3 Re6 Ka8 Bgf2 Rb1 Qg1 Bad6 Qc1 Rb2 Bc5 Rf1 Qce3 Bc2 Kf7 e8N Re5 Rf3 Ke6 Be7 Re2 N8d6 Be8 Bg3 Kd7 Rf8 Rf5 Be5 Rf1 Bf4 Rfe1 Nc7 Qa3 Rb6 Qab3 Ncb5 Rg3 Rb8 Qd2 Nb2 Qa4 Nbc4 Ra3 Nf2 Qe3 Rb6 Qab3 Bh7 Raa1 Nfe4 Ra4 Bf5#
k2b1N1K/2b2b1b/1r2pr1b/1R2Bn2/p3R3/N2R1QNp/3rP1R1/1q4bB b - - 0 1 legal: proof: g4 b5 a4 bxa4 d4 f5 c3 fxg4 Bg2 c5 Bf1 cxd4 h3 dxc3 Ra2 g5 Na3 g3 Nb1 Nc6 Ra1 Ne5 h4 g4 Be3 Nf7 Bc1 Ng5 hxg5 Qa5 Nf3 Qc7 Ng1 Qd8 b4 a5 f4 h5 b5 d5 f5 Kd7 g6 Kc7 f6 Kb8 b6 g2 Kf2 c2 Ke3 d4+ Kf4 a3 Kg5 g3 f7 d3 g7 a4 Kg6 h4 b7 a2 Qe1 d2 Qd1 h3 Nc3 Be6 Nf3 g1R Nd4 g2 Qe1 d1B Bb2 c1B Nf5 Nh6 g8R Bc2 Rg7 Qd1 Qf2 Bf4 Rh2 Bc7 Qf4 Ra6 Qf3 Qb1 Nb5 Rb6 Be5 Rh1 Rh7 g1B Na3 Bg7 Rf2 Rd8 f8N Rd2 Bg2 Bd3 Rh8 Bf7+ Kh7 e6 Rg8 Bf6 Rg4 Bd8 Kh8 Ka7 Ng3 Bh7 b8R Nf5 Rb7+ Ka8 Re4 Rh2 Bh1 Rg2 Nh5 Rg6 Ng3 Rf6 Rh2 Qb3 Rc1 a1B Rc3 Qb1 Rd3 Bad4 Rg2 Bde3 Nc4 Bh6 Na3 Rc6 Rbb3 Rb6 Rb5
4qq2/3Pq1NN/p1nn3B/k3B1N1/nb1qbr1n/4p1R1/K1N4p/1Q3R1B b - - 0 1 legal: proof: g4 d5 a4 g5 e4 b5 h4 bxa4 c4 dxc4 h5 f5 f3 fxe4 f4 gxf4 g5 a6 Qf3 Ra7 Qd1 Rb7 Ke2 Rb6 Ke1 Rg6 hxg6 Bf5 Be2 Bd7 Bf1 Bc8 b4 Kd7 d4 Kc6 Kd2 Kb5 Kc3 e5 Kb2 c5 g7 h5 d5 f3 g6 e3 d6 a3+ Ka2 e4 d7 h4 Qe1 e2 Qg3 e1N Bd2 e3 Qg4 h3 Qe6 h2 Qh3 f2 Bc1 Nf3 Qf5 Nh6 g8N Nh4 g7 Qe7 Bd3 f1Q Ne2 Nc6 Be4 c3 Nf4 c2 Nh3 Bb7 Rg1 Nf7 Rg3 Nd6 Bb2 c1Q Be5 c4 Nh6 c3 g8N c2 Bh1 Rh7 Ng5 Rf7 Qh7 Rf4 Nf6 Qd2 Qg6 Qd4 Nfh7 c1Q Nf5 Ka4 b5 Ka5 b6 Ba8 Kb3 a2 b7 Qc2+ Ka3 Qce4 b8B Qe8 Bg7 Q4e7 Bh6 Bb7 Kb3 Qf3 Na3 Qf1 Re1 a1N+ Ka2 Nb3 Rc1 Nc5 Nc2 Na4 Re1 Ne5 Ra1 Be4 Ng7 Nc6 Re1 Qf3 Rf1 Ndf5 Qe6 Qec5 Bg2 Qfh5 Bh1 Qhf7 Na3 Qce5 Nc2 Bb4 Qb3 Q5e7 Be5 Qff8 Qb2 Nd6 Qb1
q4rr1/1n1p1kPR/4npNq/8/4rbp1/n1Nr1R1B/Bn2RB2/K2BQ3 b - - 0 1 legal: proof: d4 a5 h4 g5 g4 c5 b4 axb4 f4 cxd4 h5 b6 f5 Bb7 f6 Be4 Rh2 Bg6 hxg6 exf6 Ba3 f5 Rh1 fxg4 Bc1 g3 Kd2 h5 e4 d3 a4 b5 c4 h4 e5 f6 a5 g2 c5 b3 Kc3 b4+ Kb2 h3 g7 h2 e6 d2 e7 g4 a6 Kf7 e8R Ne7 a7 Ng6 c6 Bd6 c7 Nf8 c8B Na6 Nf3 g1R Qe1 Nc5 Ra3 d1N+ Ka1 b2+ Ka2 Rg8 Bb7 Bf4 Bc4+ Nfe6 Be4 Nb7 Bc2 Rg3 Nc3 b1N Ka1 b3 Be3 Nb2 Nh4 Rf8 Bb6 Rd3 Ng6 Rc8 a8B Rb8 Ra6 Na3 Bf2 Qa5 Rd6 Qg5 Rd4 Qh6 Bd1 Rc8 Rd5 Rb8 Rf1 h1Q Rh5 Rc8 Bd5 Rc4 Bg2 Re4 Bh3 Nd6 Rc8 Rg8 Bd5 Qg5 Nh4 Re5 Ng6 Nbc4 Rh7 Qh6 Rb8 b2+ Ka2 b1R Bh4 Rb3 Rb4 Nb2 Re4 Rbb8 Re2 Rbf8 Ka1 Qe4 Ba2 Qa8 Rf3 Nb7 Bg3 Re4 Bf2
7R/qp3n1p/q6N/1R1knP1N/bbbq4/Bb1q1RQ1/r2pN1KN/5B2 b - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 g5 a5 gxh4 b5 Na6 b6 Nb8 a6 axb6 a7 b5 Ra5 Na6 Ra1 Rb8 axb8R b4 f4 Kf7 Kf2 Ke6 c4 d5 g4 e3+ Kg2 h3+ Kh2 b3 c5 d3 c6 d2 g5 e2 c7 e1Q g6 b2 g7 d4 f5+ Kd5 Bb5 e5 Qc2 d1B Bf1 d3 Ra4 e4 Nd2 b1Q Be2 e3 Rb4 Be6 c8N Nh6 g8N Nf7 Qa4 Nc5 Nd6 Nd7 Bb2 Qf1 Bh5 e2 Ba3 e1Q Ne8 Bb3 Ndf3 d2 Rb6 Qe3 Ne2 Bb4 Nh6 Qbd3 Ng7 Nde5 Qa7 Qa1 Rf1 Qf2+ Kh1 h2 Qa4 Qfd4 Kg2 Qd6 Rf8 Bc4 Qb3 Bd7 Bg4 Ba4 Nh5 Qa2 Bh3 h1B+ Kg3 Qaa1 Rf2 Qb8 Bf1 Qa7 Ra8 Rc8 Kh3 Rc5 Rh8 Ra5 Kh2 Qa6 Kg1 Bg2 Nh2 Bf3 Qc3 Bg4 Kg2 Qa7 Ng1 Bgd1 Ne2 Bdb3 Rf3 Qa2 Qc1 Qa6 Qe1 Qaa1 Re6 Qda7 Rb6 Qad4 Qg3 Bd7 Bc1 Ra2 Ba3 Bda4 Rb5+
3BB2q/P3Rr1B/3qN3/p6n/1krRQrqR/4Kp1N/2rp1nq1/6bR b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 b5 a4 e5 d5 exf4 d6 bxa4 b5 Ba6 bxa6 cxd6 Bb2 d5 Bc1 d4 Kf2 Ke7 e4 Kd6 g4 Kc5 c4 f5 a7 d5 g5 h5 e5 f3 g6 a3 g7 a2 e6 h3 e7 h4 e8B h2 Bf4 d3 Ba4 h3 Bc6 d2 Qb3 d1Q Qc3 d4 Bb5 d3 Na3 d2 Bd7 Nc6 Bd3 Rh7 Be8 Rc8 Bb8 f4 Bf5 Qd6 Bfg6 Nb4 Qb2 Nf6 g8R Nh5 Qf6 Rf7 Nb5 Be7 Rb1 a1R Bh7 Ra2 Nc7 Rc2 Qh4 Bf6 Rg4 Bd8 Nb5 Bb6 Nd4 Rc6 Qe7 Rc7 Rh4 Rc6 Qe1 Nd3+ Kf1 f2 Rb4 Qf3 Bc7 Qg4 Bd8 Rc8 Qe4 Rcc7 Ngf3 Rc6 Ke2 f1R Ra4 Nf2 Rb4 Bc7 Rb7 Bb6 Re7 Kb4 c5 Rc7 c6 Rc4 Rg1 h1Q Ne6 Qhg2 Rh1 Rc8 c7 h2 Bf5 Rc1 Bg6 Rc2 Bh7 Ra8 c8R Bd4 Re1 h1Q Rc5 Be3 Rd5 Qhh2 Rd4 Rc8 Rh3 Rc5 Rh1 Rcf5 Rg3 Qhh4 Rgh3 Qf6 R3h2 Qh8 Rh4 Nd1+ Kd3 Bg1 Nfg5 f3 Nh3 Nf2+ Ke3 R5f6 Rd7 Rf4 Re7
2K5/r1bNkprn/2n3p1/Qbb5/2r1bP2/3B2BN/1bB2R1p/2B1NR1r b - - 0 1 legal: proof: c4 d5 e4 dxe4 b4 a6 b5 axb5 Qf3 bxc4 Qd1 c3 g4 h5 Qc2 h4 Qd1 Qd5 h3 Nf6 Qf3 Qh5 gxh5 Ng4 Qd1 Nh2 Qb3 Bxh3 Qd1 Bc8 Ke2 e5 Ke3 c5 f4 b5 a4 c2 d4 c4 a5 g6 h6 h3 h7 b4 d5 b3 a6 c3 d6 b2 a7 Nc6 d7+ Ke7 d8N Bd7 Nb7 Rg8 h8B Rg7 Qd2 Ng4+ Ke2 h2 Nh3 e3 Kf3 e2 Ke4 e1B Kd5 e4 Na3 b1B Nc5 e3 Bd3 e2 Ra2 Bf2 Rb2 e1R Rf1 Bd4 Ra2 Be5 Rb2 Be8 Nd7 Nf6+ Kc5 Rd1 Kb6 Nh7 Kb7 Bc7 Ra2 Re1 Rb2 Re4 Ra2 Rc4 Rb2 Rg8 Bd4 Rg7 Bf2 Nd4 Ne5 Bb5 Bg3 Nc6 Ra2 Ra4 Nd7 Rc4 Bb2 c1R Nc2 Rd1 Ne1 c2 Qa5 c1B Ba3+ Bd6 Raf2 Bb2 Be2 Be4 Bd3 Ba1 Bb2 Bc7 Bc1 Bb2 Bc2 Ke8 Bd3 Bc5 Bc2 Ke7 Bd3 Rc8 a8B Rd8 Nf6 Rd7 Kc8 B7b6 Bc2 Ra7 Nd7 Bc7 Bb7 Rd2 Rf3 Rg2 Ba6 Rg1 R3f2 Rh1 Bb7 Nd4 Bd5 Nc6 Bd3 Rb4 Bb3 Rc4 Bbc2
2R3br/2KN1P2/p1Rr4/1Bq4r/R1nq4/pbn1p1kR/B2n2p1/1BQN4 b - - 0 1 legal: proof: d4 g5 f4 c5 a4 cxd4 e3 gxf4 a5 f3 a6 f5 Nh3 f2+ Kd2 f4 Ng1 bxa6 Ra3 a5 Ra1 a4 g3 f3 g4 h6 g5 Bg7 Bh3 Be5 Bf1 Bf4 exf4 Kf7 Ra3 Kf8 Ra1 Ke8 g6 Kf8 Kd3 Qc7 Bd2 Qc6 Ba5 Qc5 Bc7 Qc6 Be5 Qc7 Kd2 Ke8 Bf6 Qd8 Bg5 hxg5 Kd3 e5 Kc4 Ke7 Kc5 Ke6 c4 Kf5 Kd6 Kg4 h4 a3 b4 e4 c5 a6 b5 e3 g7 d3 f5 d2 f6 Kg3 b6 g4 h5 Nc6 h6 Nge7 g8B Ne5 c6 Nd5 c7 Nc3 Qc1 d1B b7 Bb3 Bb5 f1N b8R f2 h7 Nd2 Rh4 f1Q Nf3 Qc4 Be6 Bb7 c8B Bd5 Ra2 Qd4 Rc2 Qf8+ Kc7 Nec4 Ne5 d6 Bf5 Bg8 Bce6 d5 Nd7 Qb4 Rb6 Qbc5+ Rc6 Re8 Bf7 Re5 B5g6 Rh5 Be6 Nde4 Rch2 Ned2 R2h3+ Kf2 Bef7 g3 Bc2 g2 Bcg6 Qg4 Be6 d4 Bd5 Ne2 Nc3 d3 Be6 Qgd4 Nd1+ Kg1 Bd5 Nc3 Re4 Nf3 Reh4 d2 Bb1 Kf1 Bde4 Ke2 Ba2 Ke1 Beb1 Ke2 Nb2 d1R Re4 Rd2 Nd1 Rd3 Re8 Nfd2 Rc8 Bd5 Rh4 Kf3 Re4 Kg3 Rf4 Rf8 h8R Rd8 Rh6 Rh8 Re4 Bg8 f7 Qf6 Rh7 Rd6 Rf4 Nb2 Rc4 Qfd4 Ra4 Nbc4 Rh6 Rg5 Rh2 Rgh5 Rh3+
2NN1K2/Bq2p1p1/Rb3R1Q/1nR2q2/br4p1/n4P1B/Rqbrp2k/5N2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 Nh3 d5 Ng5 dxc4 Nh7 f5 Nxf8 fxe4 Ke2 Kf7 Ke3 Kf6 Kf4 b5 h4 c5 a4 b3 d4 b4 f3 b2 d5 b3 a5 c3 a6 e3 d6 c4 a7 e2 h5 c2 h6 c3 h7 Qd7 Ra6 Nc6 Rb6 Na5 Qd3 Rb8 a8N Nh6 Qb5 Nc4 Be3 c1B Ne6 c2 Qa5 Qb7 d7 Rd8 h8R Nf7 Nd2 b1Q Qa6 b2 Rf8 Na3 Bh3 Kg6 Nf1 Kh5 Kf5 Kh4 Kg6 Nd6 Kh7 Ndb5 Kg8 Bd2 Rc6 c1Q Rc5 Qf5 Nb6 b1B Rh2 Qb2 Bd4 Re8 d8R Bd7 Nc8 Ba5 Rh1 Bc6 Rd6 Bb6 Nd8 Bc2 Rg6 Na7 Rf6 B6a4 Kf7 N7b5 Rh8+ Kg5 Rh6 Kf4 Rg1 Rh8 Rg6 Rh5 Kf8 Rh6 Nh2 Rh5 Ra1 Kg3 Ra2 Rg5 Rh6 Rg6 Rf7 Rd6 Rff6 Rd7 Nf1+ Kf4 Nd2 Kg3 Bf2+ Kh2 Nf1+ Kh1 Rg6 Rd2 Bd4 Ba5 Qe6 Bc7 Qe3 Bb6 Qh6 Ba5 Ne6 Qa6 Rf7 Nc3 Rc6 Rb4 Nd8 Qb7 Ba7 Ncb5 Rc5 Kg1 Ra6 Bb6 Rf6 Kh1 Ne3 Kh2 Nf1+
1N2Qb2/rP2pqkn/n2BN3/3N1rbR/pRp5/2B5/1p2n2K/B1r1q2N b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 b4 gxh4 Nf3 c5 Ng1 cxb4 c4 d5 c5 b5 Qb3 Bd7 Bc4 dxc4 Qd1 b3 Rh2 b4 Rh1 Bb5 axb5 Qd3 Qc2 Qd4 Qd1 Qd8 Kf1 Kf7 g4 h5 Kg2 a5 f4 b2 d4 a4 f5 e3 f6 e2 c6 e1B d5 b3 b6 Bd2 d6 Rh6 b7 Rh8 c7 Bg7 c8N Ra7 g5 Qf8 d7 Na6 Na3 b1Q d8B Be1 g6+ Ke6 f7 Kf6 Nb5 Qb2+ Ne2 Qb1 Ba3 Rh7 Nb6 Qe8 f8B Bd2 Bd6 h3+ Kg1 h4 Ng3 Bgh6 g7 h2+ Kg2 Kg6 Nd7 Nf6 g8N Rf7 Nb8 Nh7 Bg7 Bdg5 Ba5 Rf5 Nf6 Qf8 Qd5 Qf7 Qc6 Qd1 Bh8 Bf8 Nd5 Qc1 Qc8 Qc3 Rhb1 h1N Qe8 h3+ Kg1 Qb4 Ra3 Kh6 Ba1 h2+ Kg2 Kg6 Nd4 Kg7 Ra2 Qc3 Re2 Qd2 B5c3 Qc1 Re4 Qd1 Rh4 Qd2+ Nge2 Ng3 Rh5 h1R Rb2 Rd1 Kh2 Qe1 Rb1 Ne4 Ng3 Rc1 Nh1 Ng3 Rb2 Ne2 Ra2 Qf6 Ra3 b2 Rb3 Qe6 Rb4 Qf7 Ne6+
1BNkNrq1/pq6/2N2R1b/3p3r/p2n1BP1/p5rN/R2b4/1r2RnQK b - - 0 1 illegal: No proof kernel
4K3/1N1BNrbQ/R2p2pR/r1Np1pBn/4n3/kqn2B1P/3B4/1q4rq b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 d4 e5 d5 exf4 d6 cxd6 Nc3 d5 Nb1 Ba6 Bh3 axb4 Bf1 b3 Ra2 b4 Ra1 Bb5 axb5 Rh5 Nf3 Rh3 Ng1 Rh8 Kf2 Ke7 c4 Kd6 e4 Kc5 e5 f5 e6 f3 Ke3 g3 Kf4 g2 Ke5 f2 b6 b2 e7 b3 e8B Kb4 b7 g6 c5 Ra5 c6 Qb6 c7 Ra7 c8N Ra8 Be2 f1Q Bf3 Ra7 Na3 b1R Bg5 b2 Nc4 Ra2 Nh3 g1N N4d6 Rh7 Nf4 Ra5 Ne7 Ne2 Ne6 Na6 b8B Nc5 Nb7 Ne4 Nec5 Rf7 Ba7 d6+ Ke6 Ngf6 Bd7 N2c3 Qd3 Rb5 Ra6 Bg7 Qd2 Re1 Qf2 b1Q Qh4 Ra5 Qh7 Ka3 Bd2 Q6b3 Bb6 Rf8 Bd8 Re8 Kf7 Nh5 Bc7 Rc8 Bd8 Rc7 Ke8 Qg2 Nc6 Rf1 B8g5 Rg1 Ne7 Re1 Rg1 Qh1 h3 Rd1 Rg4 Rg1 Rh4 Nhg3 Rh6 Nh5 Ba4 Rd7 Nc8 Rf7 Ne7 Na2 Bb5 Nac3 Bd7
8/qBBNB1B1/N1nR1R1K/3p1QrR/2pr4/2P2rp1/bq1np1nk/7r b - - 0 1 illegal: No possible last move
4Q2B/k2p1Bqq/2bp4/2PB1prq/1K4b1/n1R1BN1R/pb2N1Nn/2q5 b - - 0 1 legal: proof: d4 b5 a4 bxa4 f4 a5 h4 e5 d5 exf4 d6 cxd6 g3 g5 Bh3 Ra6 Bg2 Rb6 Bf1 Rb5 Qd4 g4 Qd1 Rg5 hxg5 fxg3 Kd2 f5 Kc3 h5 b4 h4 e4 a3 g6 h3 g7 g2 e5 h2 e6 a4 e7 a2 b5 g3 b6 a3 b7 Rh5 Bh6 Rg5 Kc4 Nc6 b8B Nf6 g8B Na7 c3 Nb5 Qf3 Bg7 Qf4 Ng4 Qe5 Bb7 Ba7 Bc6 Ne2 g1Q Bf2 g2 Nd2 Qc8 Rb1 a1Q Bd4 a2 Rb3 Qd1 Nf3 Na3+ Kb4 Qf2 c4 g1Q Qe4 Qh4 Bd5 Qc7 Be3 Bb2 Bg7 Qh7 Bh8 Qg3 Rd3 Qe5 Rb3 Qeg7 Rc3 Qc8 Bg2 Qc1 c5 Qa6 Rd1 h1B Rdd3 Nh2 Bf1 Bg2 Qe5 Bh3 Bg2 Bg4 Bc4 Bd5 Bh1 Kf7 e8N Kf8 Qe4 Bc6 Bf7 Qc8 Nc7 Qe8 Ne6+ Ke7 N6f4+ Kd8 Qe7+ Kc8 Ng2 Kb8 Qf8 Ka7 Qg8 Qe6 Qe8 Qeh6 Rd4 Bh5 Rh4 Bg4 Rh3 Qh5 Nfg1 Bcf3 Ngf4 Ba8 Bhd5 Bb7 Ng2 Bc6 Nf3
2r1R3/1k1Q1BPb/2qp4/p2brp2/1rB4R/n4qB1/n2p2p1/1N1RB1KN b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 a4 b5 g3 bxa4 Be3 c5 Bd2 cxd4 Bc1 Bh6 Rh2 g4 Rh1 Bg5 hxg5 fxg3 e4 a5 b4 h5 c4 d6 g6 Kd7 e5 Kc7 e6 a3 e7 h4 e8R g2 Kf2 h3 b5 g3+ Ke2 a2 g7 h2 b6+ Kb7 c5 d3+ Ke3 d2 Bd3 Rh5 Bg6 Na6 Bb2 Nf6 Bd4 Qd7 Ne2 g1R Qa4 Qc6 Be5 Nd7 Bd3 f6 Bc4 Nb4 Bf4 Ne5 Qb5 Kb8 b7 Ka7 Qa4 Bf5 b8B+ Kb7 Ba7 Bh7 Bb6 f5 Bd8 Rc8 Bh4 Re1 Qb5+ Qb6 Qd7+ Qc7 Bf7 Nc4+ Kf3 Rh6 Kg2 Na3 Be5 Re6 Bf4 Re4 c6+ Ka8 Bc4 Qb6 c7 Kb7 Bf7 Re5 Bc4 Rc1 Rd1 h1B+ Kf1 Qc6 Kg1 Rb8 Bf7 Bd5 c8B+ Ka8 Ba6 g2 Bfg3 Rc4 Bg5 Rc8 B5h4 Rce4 Bc4 Kb8 Qe6 Kb7 Be1 Rf4 Ng3 Rfe4 Nh1 Rd4 Nc3 Rde4 Rac1 a1Q Bhg3 Na2 Nb1 Qc3 Rc2 Qf3 Qd7+ Ka8 Rc3 Rd4 Re3 Kb8 Re4 Ka8 Bb5 Rb4 Rh4 Kb8 Bc4 Ka8 Qd8 Kb7 Qd7+
q1Q2B2/3brr2/1b2k1rq/4rP1B/2N3RK/b1r1Nr1R/2nrn3/1B1BN1q1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 h5 a4 b5 c4 d5 g4 e5 g5 h3 Kg3 h2 a5 h4+ Kg2 h3+ Kg3 b3 c5 b2 c6 e3 g6+ Ke6 g7 b4 c7 b3 a6 d3 a7 e4 Ra6+ Nc6 Ne2 d2 Nbc3 b1R Qc2 d1R Ra1 b2 Ng1 d4 Bg2 e2 Ra4 e1B+ Kg4 d3 Rd4 e3 Rd7 d2 Nf3 e2 Qg6+ Nf6+ Kg5 Nd4 g8N Rh7 Qe8+ Re7 Nb5 Nh5 Nh4 Nc2 Nf6 Bf2 Rd3 e1R Qg6 Ng3 Na3 Ne2 Be4 Bb6 Nc4 Bd7 Rg3 Rc8 a8B Qe8 Rhg1 h1R Nf3 h2 Kh4 Ra1 R1g2 b1Q Rh3 Rhg1 Ba3 h1Q Qg8+ Rf7 Rg7 Rg6 Ng4 Bd6 Bb4 Ra5 Nge3 Re5 Bc5 Rf1 Ne1 Rf3 Bac6 Rc1 Ba4 d1R Qf8 Rb8 c8B Rd2 Ba6 Qc8 Rg8 Qc6 Qc8 Qa8 Ba3 Rb7 Bb4 Na1 Bd1 Rc3 Bd3 Qc1 Bb1 Nc2 Bb5 Qg1 Ba4 Qa3 Bb3 Q3a6 B3a2 Bb8 Bf8 Bd6 Bb3 Ba3 Ba4 Rf2 Bc6 Rf1 Bf3 Rf2 Bh5 Rf3 Qb8 Bb5 Qe8+ Rbe7 Qc8+ Bd7 Rg7 Rgf6 Rg5 Rg6 Rg4 Qb5 Rhg3 Re4 Bh6 Qe5 Rh3 Qh8 Bg7 Qh6 Bf8 Re5 f5+
1k1KRq2/Nq1R1q2/1n3R2/b1n5/1QN1R2n/1N1b2nP/1nB2rrB/nbr5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 a4 Kc7 c4 g5 a5 f5 a6 b5 c5 g3+ Kf3 b3 h3 d3 e5 b4 e6 d4 e7 d2 e8R b2 c6 g2 a7 g4+ Ke2 g3 Kf3 d3 Ne2 g1R Re6 b3 Qe1 d1N Ra4 d2 Ra6 g2 Rh2 Bb4 Nd4 Ne7 Ra5 Qf8 Rg6 Rg8 Qe4 Na6 Re5 Ba5 Rb5 Ne3 Rb8 d1N Qe6 N7d5 Rh6 Nc5 Bd3 Ba6 Nc2 Nb6 Nd2 b1B Bc4 b2 Na1 Nc2 Nab3 Na1 Bd3 Re1 Be4 Bad3 Nc4 Re2 Rd8 Rc8 a8R Rg5 Ra7+ Kb8 Be3 Rg7 Rf6 Rf7 Bf2 g1N+ Kg2 f3+ Kg3 f4+ Kh4 Rd2 Bg3 f2 Kg5 f1Q Qg4 Rg2 Rad7 Nf3+ Kg6 Qf2 Re8 Nh4+ Kg5 Qf3 Rh1 Qf2 Bh2 Qf3 Re1 Qf2 Rfd6 f3 Bf5 Qf1 R1e4 f2 Bh7 Ba2 Bg6 b1Q Rde6+ Rf4 Rf6 Nb2 Bf5 Qc2 Bh7 Bb1 Bg6 Qh1 Bf5 f1N c7+ Ka8 Bg6 Qf2 Bh7 Ng3 Bf5 Rd8 c8N Kb8 Na7 Rc8 Bh7 Qd4 Bg6 Qd5+ Bf5 Rff2 Qf4+ Qfd6 Qd2 Qf1 Qb4 Qb7 Bh7 Nhf5 Kg6 Nh4+ Kf7 Qf4 R8e6 Qh6 Ke7 Rc7 Kd8 Qf8+ Re8 Rf3 Bf5 Be2 Na3 Ncd3 Red4 Rc1 Rfd6 Nc5 Bc2 Bd3 Nc4 Rf5 Rh6 Qff3 Rf4 Qh5 Rf6 Qhf7 Rg4 Rff2 Re4
K1B5/1B1qn3/1Nk2br1/b2RrNqb/2b2N1n/RbP2br1/4qN2/2n1B1Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 Kd3 b5 a4 d5 e4 Kd7 h4 g5 e5 g3 a5 g2 a6 f3 a7 f4 c3 f2 h5 b3 h6 b4 h7 b2 Rh3 b3 Ra2 g4 Qd2 f3 Qe1 g3 Nd2 b1N Qe4 b2 Ra4 Na6 Ne2 g1B e6+ Kc6 e7 g2 e8N Bg7 Qe5 Bg4 Qh2 Bh5 Nf6 Nc5+ Kc2 d3+ Kd1 d4 Nfe4 Nb3 Nc5 Qd7 Nc4 d2 Rb4 Ne7 Kc2 Rhg8 Kd3 d1B h8N Bf6 Ng6 N1d2 Ne4 b1R Rh4 Rg7 Rg4 Rag8 Nh4 Rg5 Rb8 Re5 Nf5 Rg6 Rb5 Ra1 Rd5 Ra2 Nf4 Rb2 Be2 f1B Rg3 f2 Rh3 Nf3 Bd2 Nh4 a8B+ Kc7 Bb7 Ra2 Bc8 Kc6 Ncd6 Ra1 Kc4 d3 Re3 Ra2 Ra5 Nc1 Be1 d2 Ra3 Bb3+ Kb4 d1Q Bea6 Bfe2 Nc4 f1B Rd3 Bef3 Rd5 Bb6 Qg3 g1Q Qf2 Qh1 Qg1 Rag2 Nf2 R2g5 Bd2 Qg2 Be1 Bc5+ Ka5 Qg3 Nb6 Bfc4 Na4 Bd6 Nb6 Qe2 Bb5+ Kc7 Ka6 Bb4 Ka7 Ba5 Bba6 Kc6+ Kb8 Rg4 Ne6 Qf4 Ka8 Qg5 Nf4 Rg3 Bab7+
2q3q1/n1N2b2/3r1q1Q/B1qRr1PR/4Nbq1/nB3r2/2qRNn1N/4K1bk b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 g4 Kf6 c4 e5 a4 b5 c5 h5 g5+ Kf5 c6 d5 a5 b3 a6 b2 a7 b4 c7 d3 Ra4 e3 Nh3 Ke4 f5 d4 f6 d2+ Ke2 b3 f7 Bd6 f8R Nf6 Nf4 h3 Nd5 h2 Bh3 h4 Nb4 d3+ Kf1 e2+ Kf2 e1B+ Kf1 Bf2 Bg4 h3 Ra5 Be6 c8N Rh6 Na3 b1Q Ra4 b2 Rh8 Qa1 Qb3 b1N Rh7 Qg8 Rd7 Nc6 Qa2 Bf7 Qc2 Bg1 Nc4 Na3 N8b6 Rf8 a8N Na7 Be6 Kf3 Nb2 e4 Re7 e3 Bd7 Bf4 N6c4 Ng4 Re5 Nf2 Nc6 Rd6 Rd5 Kg3 Nd1 Qf6 Nc3 Kf3 N4e5+ Kg3 Nf3 d1Q+ Ne1 d2 Bc8 Qg4 Nc7 d1Q Qg6 Qc2 Nf3 e2+ Ke1 Kg2 Ne4 Qc5 Ncd4 Qc2 Be3 Qc5 Kd2 e1R Ba6 Qc8 Bc4 Re2+ Kc1 Qg4 Bd2 Re3 Qh5 Re8 Qg6 Re5 Ne2 Q8c8 Qh6 Rd3 Nfd4 Rf3 Rb4 Qg8 Rb2 Q4c8 Nf5 Ng4 Kd1 Bd4 Ba5 Bde3 Rf1 h1Q Ke1 Qg1 Bb3 h2 Nfg3 h1Q Kd1 Bf2 Re1 B2e3 Nf1 Bf2 N2c3 Qhh2 Ree2 Kh1 Rec2 Bd4 Ke1 Bde3 Rg2 Bd4 Rg3 Qg2 Rh3 Bg1 Rh5 Qhh3 Ra2 Qb2 Ne2 Nf2 Nh2 Qhg4 Qg6 Qbc3+ Rad2 Qc2 Qh6
q2bNn1R/Q1b4k/2B4n/1B1K1Rrr/bqRN4/B1R1q1qb/2P1b3/5rq1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 h4 Kf7 a4 Kg6 e4 d5 h5+ Kh7 h6 g5 e5 b5 e6 d3 e7 d4 e8R f3 a5 g3+ Ke1 f4 Kd2 g4 a6 g2 a7 g3 Re3 f2 Ra4 b3 Ba3 b2 Ra6 b4 Rg6 b3 Bc5 f3 Nh3 g1Q Nf4 g2 Bb4 Bd7 Rg5 Be7 Ree5 Ba4 Nh5 Nd7 Qc1 Nf8 Be2 f1R Ba5 f2 Na3 b1Q Qe1 b2 Ng7 Qa2 Rd5 b1Q Rd7 Qe8 Nb5 Bd8 Rc7 Qb4+ Rc3 Qaa3 Rh4 Qe3+ Kd1 d2 Ne8 Qh2 Rf5 g1B Bc4 Rb8 a8B Qhg3 Bc6 Bh2 Bb6 Rb7 Bc5 Rg7 Rg4 Rg5 Rgf4 Rh1 Qg1 f1B Re4 Bh3 Bf1 Qef4 Ke2 Qe5 Qe3 d1B+ Kd3 Qa2 Be2 Rf1 Be7 Qec5 Ref4 Qa7 Ke4 d3+ Nd4 d2 Beb5 Be2 Ke5 Qaa3 Kd5 d1Q Qg1 Qa8 Rh4 Kg6 h7 Nh6 Bd6 Qe3 Bc5 Bhc7 Bd6 Rg8 h8R Qe1 Qf2 Rh5 Re4 Rg7 Rg8 Kh7 Rf4 Rgg5 Be7 Qbb2 Rh4 Qaa1 Ba3 Qb4 Nb3 Qd3+ Qd4 Rh1 Re4 Qe3 Qa7 Q1g3 Rec4 Qf1 Nd4 Qff2 Nd6 Rf1 Ne8 Qfg1 Rh8+
1q1R1q1n/1n1brQ2/Nnr1N1R1/B5b1/4B3/rk1qn2r/BnR1P2B/1b4K1 b - - 0 1 illegal: No possible last move
R2q1B2/1n4rb/1bRrQn2/4qB1k/K7/1P2BnBq/RN1N2b1/rbb4n b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 h4 Kg6 f4 a5 c4 d5 Kc2 e5 b3 d3+ Kb2 a3+ Ka2 g3 c5 a4 c6 e3 c7 g2 Nh3 g1N Bb2 d4 Nd2 e4 Bc1 e2 f5+ Kh5 f6 g5 f7 e3 Nb1 d2 Rh2 d3 Rg2 g4 Bb2 e1N Ng5 e2 Rh2 g3 Qc1 d1B Rg2 d2 Qc4 Rh7 Bc3 Bh3 c8R Na6 Ne6 Rg7 Qc6 Bc2 Rh2 d1B Rb8 g2 Qc7 Nc5 Qb7 Bh7 Rc8 Nef3 Qe4 e1Q Be5 Qc3 Nc7 Nf6 Nb5 Ra6 Nd2 Nb7 Bd3 Ne2 Rc6 g1B Nd6 Bb6 Bg3 Bg2 N6c4 Bc2 Nb2 Bd6 f8B Bf4 Qe6 Bfe3 Be1 Ng3 Bf5 Nh1 Bg3 Qe5 Nf1 Bc1 Nd2 Kh6 h5 Kg5 h6 Be4 Bh4+ Kh5 Rc8 Qg3 Rc6 Qh3 Bg3 Bg1 Rc2 Rd6 Rc4 Bb6 Rc6 Bg6 h7 Bd3 h8B Be4 Nd3 Bh7 Kb1 a2+ Kc2 a3 Kc3 Ne5 Kb4 Nf3 Nb2 Bd3 Rb1 a1R Ka4 Rg8 Bhg7 a2 Bh6 Rg7 Be3 Be4 Nd1 Bc2 Rb2 Bd3 Rbc2 Be4 Nb2 Bd3 R2c5 Bb1 Ra5 Ne8 Nbc4 Nf6 Ne4 Bf1 Rb2 Bg2 Bd4 Bd3 Re2 Rb1 Ra8 a1Q+ Ra2 Qb2 Bdf2 Ra1 Ned2 Qe5 Nb2 Bb1 Be3
Br5N/qr3qnR/b4nBr/b1b1K2b/3BR1bP/1N6/k1Nn1q2/N1nQ4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Ke6 Ke4 b5 a4 f5+ Kd3 Kd5 h4 g5 c3 f3 a5 f2 a6 b3 a7 b2 e3 f4 Qc2 b4 Ra6 g3 Rh3 g2 Rg3 b3 Rg4 f3 Rf6 Qb6 Rf7 Rh6 Re7 Na6 Ree4 Bb4 Bd2 Nf6 Re8 Nc7 Be2 f1Q Qc1 f2 Nf3 g1N Rge4 g4 Ng5 g3 Rh8 g2 Qd1 Rb8 Rh7 Nce8 Ne6 Ba5 Nc5 Ng7 Na3 b1N Nc2 b2 a8B+ Rb7 Na1 Qa7 Be1 Nd2 Ncb3 b1R c4+ Kd6 c5+ Kd5 c6 Rb8 Nc5 R1b7 Ncb3 d6 Kc2 d3+ Kb2 Bg4 c7 Bc8 Bg4 Ne2 Bh5 g1B Bg6 Bg4 c8N Nc1 Nc2 Qg2 Na1 f1B Bg3 Qf3 Be5 Qf2 Bd4 Kc4 Ne7 d5 Nc6 Bh5 Nb4 Bg4 Bc5+ d4 Nbc2 Bfe2 Re7 Bh5 e4 Bhg4 e5 Bh5 Ka3 Kc3 Ka4 Kb2 e6 Ka2 Re8 Nde4 e7 d2 Bb6 d3 Kb5 Beg4 Kc6 Bc8 Qf1 d1Q Bd4 Nd2 Kd6 Qdf3 Qe1 Qf5 Qd1 Qd7+ Ke5 Bg4 Reh8 Bh5 e8N Qf7 Nd6 Bcg4 Bb6 Nde4 Bc5 d2 Qf1 d1B Rd8 Qe3 Ncd4 Qd7 Ndc2 Bde2 Qd1 Ba6 Nf7 Qe2 Be3 Nd2 Nh8 Qf7 Rd4 Qf1 Re4 Bf2 Bf4 Bc5 Be3 Qf2 Bd4
4bK2/q2rnb2/1n1b1B2/5R2/RQ1r1NP1/Bqb1k2B/1brnq2R/RqN5 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Kg6 g4 Kg5 c4 Kf4 c5 b5 f3 d5 c6 h5 a5 e5 a6 h3 a7 h4 c7 b3 Ra6 b2 Be2 d3 Kc3+ e3 Rh6 b4+ Kb3 d2 Ba6 h2 Bc4 d4 Rc6 e4 Qc2 d1Q Be2 h3 Kc4 d3 Rc5 d2 Rg5 b3 Qc3 Qd7 Qb4 Rh7 Bf1 e2 Rg6 e1B Qa5 e3 Ra6 e2 Qd5 Ke3 Na3 b1R Qb5 b2 Qa5 Qe7 Kd5 Bd7 c8R Be8 f4 Nd7 Rc5 Rc8 Nb5 Qb3+ Rc4 Ra1 a8R b1N f5 Ra4 Bb2 d1Q+ Nd4 Qc5+ Ke6 Bd6 Rb8 Qa7 Rb5 Nb6 f6 Rd7 f7 Ne7 Rf5 Beg3 Kf6 e1B Kg7 Bge5+ Kf8 Bf6 Rc1 Rc2 Ne6 Bfe5 Ba3 Bb2 Nf4 Bec3 Nge2 Rd4 Qb4 Nd2 Ra4 Qe1 Ra1 Qf2 Rg1 h1Q Rg2 Qe1 Rf2 h2 Bh3 Qf3 Rg2 h1B Rh2 Qb1 Nc1 Bg2 Kg7 Qe2 f8B Nc6+ Be7 Bd5 Kf8 Bg8 Kg7 Bgf7 Bf6 Ne7 Kf8
1r1b3n/3Q2q1/q1rNbB2/1N1q4/bPB1n2r/K1n1nBR1/4nNR1/Bk3r2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 h4 Kd6 b4 Ke5 e4 d5 c4 f5 Kc2 g5 Kb2 a5 h5 a3+ Kb3 a2 c5 g3 h6 g4 c6 a4+ Kb2 a3+ Kb3 f3 h7 f4 c7 f2 Qf3 g2 Ne2 g1N Nd2 g3 Nc3 d3 Nc4+ Kd4 e5 d2 e6 d1N e7 g2 e8N Be6 Ng7 Nc6 Na4 Ne5 Rh5 Be7 Na5 Nf6 Rh3 Ne4 Bb5 f1N Nb6 Ng6 Bd2 Nfe3 Nd7 Rb8 Qf1 f3 Rh1 f2 Rc1 a1R Rc2 a2 Ne5 Rc1 Rh3 a1Q Nac4 Qa6 Ne8 Bh4 Qe1 f1R Ng4 Kd3 Bc3 d4 Ba1 Bf6 Rf2 Ne2 Rhf3 g1Q c8B Bf7 Bf5 Be6 Nc7 Qdd6 Rh2 Bd8 Rfh3 Qgg3 Rg2 Qge5 Rhg3 Qg7 Ba4 Qc5 Nb5 Qcd6 Ka3 Rc2 Nb6 Rc6 Nc8 Ndc3 Qb1+ Kd2 Nf2 d3 Bg4 Qc5 Qa2+ Kc1 Bf3 d2 Qd5 d1B Qd7 Kb1 Ncd6 Qg5 Qb7 Qd5 Qd7 Qb7 Bb3 Qb6 Bc4 Ba4 Rg4 Qa6 Rg5 Rf8 R5g3 Rf4 Qb7 Rh4 Qd7 Qg8 h8B Qf7 Bg7 Nh8 Bd4 Qg7 Bf6
1RB2BqQ/n1b1N3/R1bqbR2/1PknB2r/2n4b/1K1b4/r3qNq1/4Br2 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 d5 f4 Kd7 c4 Kc6 Kc2 e5 b4 a5 h4 g5 f5 g3 b5+ Kc5 h5 e3 f6 g4 f7 g2 h6 e4 h7 a3 Qe1 g3 Rh5 a2 Qd2 d3+ Kb3 a4+ Ka3 e2 Qb2 e1B Qf2+ e3 Qc2 e2 Rg5 d2 Nf3 d1B Nh4 g1Q Rg4 d4 Bb2 g2 Rg6 d3 Ra6 d2 Ra5 Nc6 Ra7 Qd6 Qc1 Nf6 Be5 Nd5 Re7 Bc2 Ng6 d1B Rb7 Bh4 Qd2 e1Q Qd3 Na7 Qh3 Bf3 Rb8 Bd3 Nd2 Qe2 Ne7 Be6 Bg3 Bh6 f8B Bf4 Be1 Qh1 Qh2 g1Q Bh3 Qg8 Kb2 a3+ Kb3 Qhg2 Ne4+ Kd4 Nf2 Kc5 Rb6 Bfe4 Ra6 Be5 Rc1 a1R Rc3 a2 Bg4 Bb1 Rf3 Bbd3 Rf6 Beg3 Bd2 Rf1 Be1 Nb4 Qh1 Bc6 Qh2 Nd5 Bh3 Bf7 Bc8 Be6 Qh3 Kd4 c5 a1N+ Ka4 Nc2 Kb3 Na3 Qh1 Be8 c6 Kc5 c7 Bc6 Qh3 Nc4 Qh2 Qgg4 Qh3 Rg8 h8B Rg5 Qh1 Re5 Qh3 Qg8 Bhg7 Bg5 Qh8 B5h4 Rh6 Rh5 Be5 Bf4 Rg6 Bd2 Rf6 Ba5 Bd7 Bb6 c8R Bc7 Rb8 Nc8 Rab6 Ra2 Ra6 Na7 Bc8
bQB2r2/1Rn5/r1rPN3/B2br1N1/R3nk1K/5q1n/R1qq1Nrb/4R2q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 e4 Ke6 d4 h5 g4 b5 a4 f5 d5+ Ke5 a5 c5 g5 b3 g6 b2 a6 c3 g7 h3 a7 c2 Qe1 b4 Bb5 c4 Bd2 c1N Ra2 f3 Kg3 f2 Bg5 f1Q Nc3 b1Q Nge2 h2 Bd2 b3 Na4 c3 Bg5 f4+ Kh4 c2 Nc5 b2 Qg3 Nd3 Qe3 c1R Qh3 f3 Rg1 h1B Bd7 f2 Qg2 Qc2 Bg4 b1R Ra4 Nf6 g8N Rb2 Rd4 Bd6 Rb4 Be6 Nf4 Na6 Qh2 Nc7 Nh6 Re8 Nh3+ Nf4 Rg2 Qfd1 Rb6 f1R Rb7 Qf3 Nf2 Rf8 Bh3 Rfe1 Bg4 Bg8 Bc8 Qd7 Ne6 Qd8 Rg3 Nh3 Bd2 Ra2 Ba5 Qd7 Ng5 Kf4 e5 Ne4 e6 Be5 e7 Qd6 e8R Qb4 d6 Bd5 Nd1 Qbd2 Nf5 Re2 Nd4 Rg2 Bb4 Ra6 Nf2 Rb8 a8R Re1 Rb5 Rbb6 Ba5 Rc6 Nde6+ Ke3 Qg1 Nf6 Rab8 Be4 Rg4 Rc5 Nd8 Nf4 Nde6 Qfd1 Bd7 Rh2+ Kg3 Ba8 Ngh3 Bhd5 Bc8 Rcc6 Rb2 Qf3+ Kh4 Rg2 Nc5 Re2 Kg5 h4 Qb1 Re1 Ra2 Re2 Ng1 h3 Kh4 h2 Ngh3 Re1 Ng5 Nh3 Qb7 h1Q Rga4 Re2 Qa7 Re1 Rb7 Re2 Nfe4 Bh2 Qb8 Kf4 Nf2+ Re4 Bd7 Rd4 Re1 Re4 R4a3 Ree8 Ra4+ Ne4 Bc8 Re5 Nce6+
2nqn1RR/4qB2/KN1Pr2k/2b2nb1/N5r1/5rB1/q1b1RnQ1/bBb3B1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 h4 Kg6 a4 c5 f4 b5 d4 e5 d5 g3 h5+ Kh6 a5 g5 d6 c3 a6 c4 f5 b3 f6 c2 a7 b4 f7 g2 Ke3 g4 Qe1 b2 Qc3 b3 Ra4 g3 Qd4 c3 Rb4 Bg7 f8B Na6 Rh3 Ne7 Ra4 Bf5 Nd2 b1N Bc4 b2 Ngf3 g1B+ Ke2 g2 Nh2 e3 Qh4 e4 Be6 Rg8 Rg3 Nc8 Nhf3 Na3 Ra5 b1Q Ng5 Nb5 Nc4 Qa2 Bf7 Nac7 Nb6 Ne8 Qh3 Bg6 Bb2 c1B Be7 c2 Bd4 Be5 Bc5 Ba1 Ne6 Rg7 Bh4 Nd4+ Ke1 Rb8 a8B Nf5 Ke2 Bd2 Ra7 c1B Re7 Bh7 Bd4 Rg4 Nc5 Bf2 Nca4 g1N+ Kd1 Bg6 Qg2 Nh3 Ke2 Bg1 Bad5 Nf2 Bc4 Rb7 Bd3 Rc7 Bc2 Rc3 Bc5 Rf4 Rg5 Rg4 Bb1 Bh7 Rg8 Rd3 Qh1 Rc3 Bg3 Rb3 Kf1 e2+ Kg2 Nh3 Nd7 e1R Nf8 e3 Kf3 Nfg7 Nd7 Bc2 Qg2 Kg5 h6 e2+ Re3 Ra3 h7 Kh6 Ndb6 Nf5 Bd4 Nf4 Bc5 Nd3 Re7 Bf4 Ke4 Rb3 Kd5 Bg5 Kc6 Bf2 Bd4 Bfe3 Bh8 Bc5 Bd4 Rc3 Bg1 Nf2 Kb5 Rf3 B1h2 Rg1 Re5 e1Q Ka6 Qe3 Re4 Re1 Bg1 Qe2+ Rc4 Qee7 Re4 Rd1 Re1 Rd5 Re3 Re5 Re2 Re6 h8R+
2R1NrRn/nN1bKPb1/2br2b1/3qkQB1/2bR4/1n4n1/1q3RBB/5rq1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Kf6 h4 d5 c4 b5 f4 g5 c5 e5 c6 g3 c7 e3 Kd3 g2 f5 b3 a5 e2 a6 e1Q h5 b4 h6 g4 a7 b2 h7 e4+ Kc2 e3 Kb3 e2 Rh2 d3 Be3 d4 Kc4 b3 Na3 b1B Nf3 g1Q Bd2 g3 Nh4 b2 Ba5 d2 Ng2 d3 Rh3 Qef2 Ne3 e1R Ra2 g2 Rg3 Nc6 Bb4 Qd5+ Kc3 Ke5 f6 Nh6 Rg4 Bg7 Rd4 Nf7 Nf5 Rd8 h8B Bd7 Qc2 d1B c8R d2 Be7 Be2 Nd6 d1B Nb7 Bc4 Nb5 Bf3 Nc7 Rf8 Qh7 Bg6 Ne8 Rb8 a8R Na7 Kb4 b1N Rc2 Nd2 Rb2 Nb3 Rc2 Qe3 Rf2 Qe2 Bd8 Qb2 Be7 Qh1 Bd8 g1N Bg2 Rf1 Bc7+ Ke6 Bh2 Ne2 Qh5 Ng3 Qh7 Ne5 f7 Qg1 Qh5 Bh6 Bf6 Bg7 Bg5 Bfe4 Rd8 Rc8 Qf3 Rc6 Rdc8 Rd6 Rab8 Bh5 Qf4 Ng6 Qg4+ Ke5 Qf3 Qe6 Ra8 Bec6 Qd3 Nc1+ Kc5 Nh8 Rc7 Bg6 Nf6 Rg8 Rd8 Re8 Rcc8 Nb3+ Kb6 Rc1 Kc7 Re7 Rg8 Re8 Qb1 Rf8 Ne8 Qd5 Kd8 Re1 Ke7 Rf1 Qf5+
1nR1BBn1/Prr2Q1r/1Rq5/KB5N/BR1q2rb/3bN2n/bn3q2/5k1n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 c4 Ke6 a4 Ke5 g4 Ke4 g5 b5 e3 f5 g6 d5 c5 h5 a5 f3 a6 b3 g7 d3 Kc3 d4+ Kb4 h3 a7 h4 Ra4 f4 Bd2 f2 Ra5 h2 Qe1 h3 Be2 f1Q Na3 f3 Nc4 b2 Qf2 b1B Ra1 Rh7 Be1 d2 Na3 d1N Qg2 d3 Bf2 d2 Bg3 Ba6 Qf2 Ba2 Bc4 Be7 Bh4 Qd4 Bg5 Nb2 Bh6 d1N Ka5 b4 c6 b3 c7 Bh4 c8R Qg2 Qf1 f2 Ne2 Kf3 e4 Qg6 e5 Qc6 Rg1 h1R e6 h2 Rg6 Rg1 e7 h1N e8B Rg4 Nf4 Ke3 Be2 Bd3 Rb1 Kd2 Rd6 Ke3 Nc2+ Kd2 Qg2 f1Q Qd5 Ndf2 Qf7 Nh3 Ne3 Qf2 Bd1 Ke1 Nh5 Qc1 Rb6 Qc6 Nf5 Kf1 Bc2+ Nd1 Rb4 b2 Ba4 Na6 Rb6 Rb8 Rb4 Rb7 Rb6 Nb8 Bb5 Nf6 g8B Re7 Bf8 Rc7 Ra1 b1R Ne3+ Ke2 Ba4 Rb3 Rc1 Nb2 Rc4 Ke1 Rcb4 Ke2 Qe7 Ke1 Bc4 Ng8 Ng2+ Kf1 Qf7 Rb7 Bcb5 Rc3 Qd7 Qcf6 Qg7 Rcc7 Qf7 Qc6 Ne3+
1B1r1R2/qqRqQ3/3b3K/3q4/1n1NR1q1/3rBB1b/1P1r1Nnr/k2b2Rq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 h4 Kd6 c4 Kc5 e4 Kb4 h5 f5 h6 g5 c5 d5 c6 a5 e5 a3 e6 a4 c7 f3 e7 f2 e8R f4 h7 f3 Re5 a2 Bb5 f1Q Be2 f2 Nf3 a3 Re4 g3 Re6 d3 Ke3 d2 Reh6 g2 R1h5 g1Q Rd6 d4+ Ke4 g4 Kf4 d3 Nh4 g3 Rg5 g2 Rd7 Qh1 Rdd5 g1Q Rg2 Nf6 Kg5 Nh5+ Kg6 Nf4+ Kf7 Nc6 Bf3 Bd6 Kg7 Bh3 c8R Qd7+ Kh6 Qe1 Rd8 f1R Rh5 Rf2 Rg7 Qgg4 Rf7 Qee6+ Ng6 Qd5 Qg1 Kb3 Rg7 d1B Be3 d2 Nc3 Nb4 Ne4 Ng2 Rf8 Rd8 Qe1 Kc2 Rb1 a1Q Nf4 a2 Rh4 Kb3 Rc1 Qb1 Rc6 a1Q Ne2 Qaa7 Nd4+ Ka2 Rc7 Ka1 Rgg8 Re2 Nf2 Qbe4 Rg6 Qdb7 Rgg8 Qed5 Rg6 Rg8 h8B Rg7 Rg5 Rf7 Be5 Rf4 Nb5 Rd4 Bg3 Rd3 Nd4 Qgf5 Re4 Qg4 Bgf4 Nh4 Rc8 Bc7 Re6 Qg3 Ng4 Rh2 Bg1 Qgg2 Qe4 Bc2 Bge3 d1R Nf2 R1d2 Qh7 Bb3 Re4 Bd1 Qe7 Qg3 Be5 Qf4 Bd6 Qff5 Rg1 Ng2 Bg3 Qg4 Bgf4 Bb6 Be5 Bc5 Bb8 Bd6 Rc7
5N2/R5nN/1rn5/rB1R4/BPn2QrB/bN3qBr/b1rn1q2/K1k1q1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 e4 Ke6 h4 Ke5 c4 a5 Kc2 g5 h5 d5 h6 f5 h7 g3 b3 a3 c5 d3+ Kc3 g4 c6 d4+ Kd2 a2 c7 g2 Qf3 a4 Qg3 a3 Kd1 d2 Kc2 d1R Rh4 d3+ Kc3 d2 Bb5 Qd4+ Kc2 Nh6 Bc6 Be6 c8N Ra6 Ba4 Nc6 Qf2 g3 Nd6 f3 Nc3 f4 Bb2 Nf5 Nce2 Rb6 Rh6 Ng7 Qe1 f2 Nb7 f1Q Nh3 g1R Qf2 f3 Rf6 g2 Qe3 f2 Nc1 Qe1 Rf3 f1Q Ng5 Bd5 Rg3 Qf3 Nc5 Be7 Qf2 Kf4 e5 Qde3 Qf1 Qe3f2 e6 Ke3 Nd7 Rc8 h8B Bb4 Rb1 a1R e7 a2 e8B Ba3 b4 Rh1 Qc4 g1R Nf8 Rh3 Ngh7 Be6 Rg5 Rg4 Bf6 Rc7 Ne2 Rc1+ Kb3 d1N Rd5 Nb2 Nd4 Rc8 Qf1 Nc4 Bh4 Ra8 Rb2 Ra5 Rd2 Bg8 Rd7 Rc2 Ra7 Ne7 Beb5 Nc6 Nde6 Rd1 Rd5 Bf7 Nd4 Kd2+ Qd3+ Kc1 Qe3+ Rcd2 Kc3 a1N Bg3 Nb3 Bh4 Ne6 Be5 Ng7 Bb8 Qee2 Bh2 Rdg1 B2g3 Qee1 Re5 Nc5 Rd5 Ne4+ Kb3 Nb2 Ka2 Nc4+ Ka1 Be6 Qb3 Rc2 Qe3+ Ned2 Qf4 N4e5 Rc5 Ba2 Rd5 Nc4 Nb3+
qn3KB1/6r1/2bn1P2/qn1qnk1q/R3RN1b/RqR1Q1B1/1bq1B3/3r1N2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 h5 f4 d5 g4 b5 c5 b3 c6 b2 c7 b4 g5 h3 g6 h4 g7 e3 Kd3 h2 a5 e2 a6 e1N+ Kd2 h3 a7 d3 Ke3 d2 Kd4 b3 Kc5 d4 Nc3 b1N Be2 b2 Bb5 d3 Ra6+ Kf5 Na2 e5+ Rd6 e4 Nf3 e3 Ng5 e2 Rf1 h1Q Rg1 h2 Nh7 Bd7 c8R Na3 Rg2 b1Q Nc3 Bc6 Bc4 Qc2 Rg3 Nf3 Qe1 d1Q Ng5 d2 Nge4 Rh7 Nd5 Ne7 g8B Bg7 Re6 Qa5+ Kd6 Bb2 Qf2 e1B Qe3 Bf2 Be2 Rg7 Rh3 Bh4 Ng3+ Kg4 Nf1 Kf5 Re4 Ne5 Rf3 Qb3 Rh3 Qdc2 Rg3 d1Q Rf3 Be8 Rc3 Bc6 Bd2 Qg2 Be1 h1Q Bf2 Qg5 Be1 Qh5 Bg3 Kg4 Ke6 Qa1 Kd6 Nf5+ Ke6 Nd6 f5+ Kh3 f6 Nab5 Rff4 Q1a3 Ra4 Qc5 Rfc4 Q1f3 Nf4+ Kg4 Bf7 Qca3 Ke7 Kf5 Kf8 Qd5 Re4 Nbd7+ Ke7 Rd8 a8R Nb8 Ra6 Rd7+ Kf8 Qa1 Bg8 Qaa3 Rb6 Qa8 Rba6 Qab4 Bf2 Qa5 Ra3 Rg1 Bg3 Rg7 Nd2 Rd1 Nf1 Qc7 R6a4 Qb6 Qd3 Qba5 Qe3
3b3b/bqn1Nk2/1nP1bRq1/3q3N/2bQ1r1R/2BBr1b1/B2n2RB/n6K b - - 0 1 illegal: No possible last move
1b2R3/1N1bbRrr/2rr2rr/1b1n4/R2N1q2/3Q1bnk/2PR1B2/bK3BN1 b - - 0 1 illegal: No possible last move
3BK3/2Q4q/3bBRnP/B3r1q1/1NR2qkn/N1nbB1rq/n3bbN1/2q5 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 g5 h4 c5 a4 b5 f4 e3 d4 e2 d5 e1B a5 c3 a6 b3 d6 b2 a7 c4 f5 b4 f6 b3 f7 c2 d7 c3 Ke6 Qc7 Qd5 g3 Ra6 g2 Qc6 g4 Nd2 b1B Ne2 g1Q Nd4 b2 Qc4 g3 Nc6 g2 Qd5+ Kg4 h5 Bf2 h6 Qgh2 Ra3 g1Q Qb5 Na6 Ne4 Qh3 Qb7 Nb4 Bc4 Na2 Qb4 Ba6 Nd6 Re8 Bg5 c1Q d8B c2 a8N Qf4 Rd3 c1Q Rf3 Bd3 Qc3 b1N Nb6 Rh7 Nb5 Rg7 Qe5 Nbc3 Na3 Be2 Bd5 Bad3 Nbc4 Qa7 Qc7 Rg6+ Kd7 e5 Re3 e4 Nb4 Re5 Rf3 Ne7 Ke8 e3 Rh2 Rg8 Rh1 Ng6+ Be6+ Qf5 Bf4 Bd6+ f8B Qgg3 Rd1 Qgh4 Rd2 Qg5 Rc2 Qb7 Qc8 Qh7 Qc7 Rg7 Bfe7 Bd1 Bf8 e2 Be3 e1N Bfe7 Qf4 Bg5 Ng2 Bb6 Be3 Ba5 N2h4 Rf1 Bf2 Ne3+ Kg3 Ng2 Kg4 Qb8 B1e2 Qc7 Qc4 Be3 Qf4 Be7 Na4 Rc4 N4c3 Bf7 Qg5 Bd5 Rf5 Bd8 Re5+ Be6+ Qf5 Nb5 Ne7 Rg1 Kg5 Bd4 Be1 Ne3+ Qfg3 Rg2 Bf2 Na3 Qf4 Ba7 Qgg4 Bc5 Kh5 Ba7 Qgf5 Rg6 Qf6 Qb7 Q6f5 Rf6 Rg3 Bc5 Neg6 Ng2 Q5g4 Qc7 Qgg5 Rf5 Kg4 Be3 Rd5 Rf6+ Rf5 Bg8 Re5+ Be6+
5N2/2Nn1NQ1/1n2nB2/2P2q1R/nrkb1N2/r7/nbnqnRBB/1b4nK b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 h4 Kd5 a4 b5 a5 g5 a6 f5 h5 b3 e3 g3 a7 g4 h6 d3 e4+ Kc4 c3 d5 e5 b4 e6 b2 h7 d4 e7 b3 e8N Nf6 Qd2 Nfd7 Nf3 Nc5 Rh5 Ne6 Ne1 f3+ Kh1 f2 Bh3 f1N Nf6 g2+ Kg1 f4 Nc2 f3 Rd5 Ba3 Qh6 d2 Qh4 d1N Rg5 d3 Re5 d2 Rh5 Ng3 Nd5 f2+ Kh2 g1N Rg5 f1N+ Kg2 N3e2 Ne1 Nd7 Nd3 Nfe3+ Kh2 Nc2 Qh5 g3+ Kh1 Nde3 Nc5 d1N Nf4 Nd5 Qf7 N5b6 Ra2 Rb8 a8N g2+ Kh2 Rg8 Rh5 Rg3 h8B Bb7 Qg6 Be4 Nc7 Qg5 Qg8 Qd5 Qf8 Qd2 Qg7 Ncd4 Ra1 Nd8 Nfd5 Qf4 Qe7 Na8 N7a6 Rb4 Nd3 Nab6 Ne5+ Kb5 Ng6 N8e6 Nd2 b1N Bf6 Nb2 Qg7 N2a4 Nf3 b2 Nac7+ Kc5 c4 Nbc3 Nfe5 b1Q Nf8 Na2 Bb2 Qd2 Nf7 Qf1 Bc3 Qf5 Rf1 Bb1 Rf2 Nc2 Bce5 Bb2 Bf4 Ra3 Bg3 Be5 Nf4 Kd4 c5 Kc4 Bg4 Bb2 Bf3 Nh3 Rf1 g1B+ Kh1 Bgd4 Bg2 Nhg1 Bh2 Qh7 Rf3 Qf5 Rf2
1kr5/bB2bn1n/1Bq2NR1/KBRQ4/2r1bBr1/1b4qq/3nRNP1/5nr1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 c4 Kd7 a4 Kc7 f4 b5 f5 h5 a5 e5 a6 d3 f6 e3+ Ke1 d4 f7 h3 a7 h4 c5 e4 c6 e2 Kd2 h2 Ra2 h3 Ra1 b3 Ra5 b4 Re5 b2 Re7+ Nd7 Qe1 b3 Qh4 e1B+ Kd1 e3 Nf3 d2 Nc3 b1B Qh6 b2 Qh4 Bf2 Re4 Qe8 Ng1 Nh6 Ba6 Rg8 Nf3 Nf6 Bc4 Be6 Ng1 Be7 f8B Nf7 Rf4 Rg4 Qh8 Rc8 a8B Nh7 Qf6 Be4 Rf5 b1N Rc5 Kb8 Bb5 Bb3+ Ke2 d1N Qe6 Qd7 Nd5 Nd2 Nf6 Qd6 Qd5 Qe6 Nf3 Bg1 Bb7 d3+ Ke1 e2 Ng5 Ne3 Bh6 Nef1 c7+ Ka7 Bb2 Qc6 Be5 Be3 Bf4 Bd4 Rg1 h1R Be3 h2 Nh3 Ng3 Rf1 Rg1 Bhf4 h1Q Nf2 Qh3 Rc2 Rh8 c8R Bdc5 Rc7 Kb8 Rb2 Ba7 Bb6 Rc8 Ra2 Rh1 Rc2 Rh2 Rh1 Ngf1 Ra2 Qe3 Rc2 Rhh4 Rh3 Qg3 Rc5 Qh2 Rg3 Qh3 Rd7+ Qc7 Rd6 Qc6 Re6+ Qc7 Re3 Nc4 B7c6 Nh2 Ne8 Bf3 Ne4 Rg8 Bg3 d2+ Kf2 d1R Bb7 Rg5 Rg6 Rg1 N8f6 Nf1 Ke1 Rf4 Nf2 Rd4 Bf4 Rg4 Re5 Qc6 Nd1 Ncd6 Re6 Rc4 Re5 Ne3+ Kd2 e1Q+ Kd3 Nf1 Re2 Qeh4 Nf2 Q4g3 Bh6 Ne4 Bf4+ Qc7 Ng8 Ned2 Nf6 Rb4 Kc3 Rc4+ Kb2 Be4 Ka3 Rc1 Kb4 Rc4+ Ka5 Qd6 Bh6 Qc6 Bf4+
1brR1B2/1bq1B1nK/1nR3Nn/rQ2BR2/q1B3NP/2n5/qrk1b3/2b2q2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 a4 g5+ Ke3 Ke5 h4 c5 a5 b3 d3 g3 f3 b4 a6 b2 a7 b3 Nh3 g2 Rg1 c3 Nf2 c2 Be2 g4 Bd2 c1N Ra2 g3 Nh3 c4 Ba5 c3 Qd2 c2 Rf1 g1Q+ Nf2 g2 Re1 Qf1 Ra4 g1N Nc3 b1Q Ra1 b2 Bd1 Nb3 Na4 c1B Nh1 Nd7 Nf2 Ne2 Nb6 Nbc5 Bb3 Nh6 Nd5 Bb7 Bc4 Qc7 Nf4 Qa2 d4+ Kf5 d5 b1B d6 e5 Rd1 Nb6 d7 Nc3 d8B Bd6 Ng6 Ne6 f4 Bd3 Be7 Be2 Ng4 Rhc8 Rb1 Ng7 Rb5 Rab8 a8R Qa4 Bb4 Qg2 Raa5 Ra8 Rd5 Ra6 Rac5 Ra5 Rh1 Qf1 Rc6 Qa2 Bf6 Qd1 Rf1 Qda4 Kf2 e3+ Kg3 Ke4 f5 Nd1 Qb2 Nc3 Rdc5 Kd4 Be7 Ke4 f6 Kd4 f7 e4+ Kh3 Bf4 f8B Bd6 Bf7 Kd3 Rcf5 Bg3 Qb3 Kd2 Qd5+ Kc2 Qb5 Ng8 Re5 Nh6 Bd5 Bc4 Re1 e2 Rd1 e1Q Nf6 e3 Nf4 e2 Bbd6 Qd8 Rf5 Bd3 Bc4 Qf1+ Ng2 e1R Bb8 Ng8 Kg4 Bd2 Nf4 Be2+ Kg5 Nh6 Kg6 Be3 Rd3 Rb1 Ng4 Rb2 Kh7 Bc1 Ng6 Qd7 Bc5 Qe7 Rd8 Be5 Bbd6 Qd7 Bde7 Bb8 Bcd6 Qc7 Be5
B1br2kr/RbK1R3/rNQP1B2/4bN1q/3b1qRN/1n6/qR5q/n4r1n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 f5 d4 Kf7 g4 b5 e4 c5 a4 b3 g5 b4 a5 h3 d5 h4 e5 b2 d6 c3 a6 c2 a7 b3 Ra4 h2 Qe1 c4 Qg3 c3 Rc4 h3 Rb4 Nd7 Qg2 Ngf6 e6+ Kg8 e7 Nh5 e8R Nc5 g6 Qg5 g7 Ng3 Rd4 Qh5+ Kf2 f3 Ke3 f2 Rb4 f4+ Kd4 f3 Na3 b1R Bb2 c1N Nc4 c2 Nd2 Ra1 Re1 Ra6 Ba3 b2 Be2 f1Q Ne4 b1Q Bb2 f2 Nf3 Qa2 Nh4 N1b3+ Kc4 c1B Kb5 Bg5 Bf6 Na1 Rb2 Bf4 Rg1 Nh1 Ng3 Be5 Qc6 Bd4 Ngf5 Ncb3 Rg4 Be7 Bd3 Bd8 Ree4 Ba5 Re5 Bac3 Re7 Be5 Ra4 Bcd4 Ra3 Qc1 Be4 f1R Bg2 Qf4 Bf3 Bb6 Be4 Rb8 a8N Bbd4+ Nb6 Ng3 Qc7 h1B Ba8 Bhb7 Qc6 h2 Ra4 h1Q Ra3 Kh7 Ra4 Qh2 g8R+ Qf7 Rg4 Nh1 Ng6 Kg8 Ngh4+ Qg6 Rc4 Ra3 Ra4 Qgg5 Ra7 Ra6 Nd5 Qg6 Nb6 Be6 Qc4 Rd8 Qc1 Bec8 Qc2 Bg2 Qe4 Qgg5 Kc6 Qg6 Kc7 Qgg5 Qe2 Bgb7 Qe4 Qg6 Qc6 Qgg5 Ng6 Qgh5 Ngh4+
q3rQ2/4Rr1B/n1b1rk2/1r1nr1R1/4B3/PnB4N/2RbR1Nb/1b1K2nr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 Ke7 c4 b5 e4 g5 e5 d5 h5 f5 e6 f3 h6 f4 a3 b3 h7 d3 c5 b2 c6 g3 c7 f2+ Kd2 g2 Rh6 f3 Rg6 g4 Be2 f1R Rg7+ Kf6 e7 d4 e8R b4 Rd7 g3 Qc2 f2 Qd1 b3 Bg4 Ra6 Nh3 g1N Rg7 g2 Ra2 Bb7 c8B Bb4+ Nc3 b1R Bge6 b2 Bb3 Re6 Bd7 Na6 Ra1 Ne7 Bc2 Nd5 Bda4 Qa8 Rd7 Bc6 Rc8 Rhe8 h8R Rfe1 Rh5 R1e5 Qe1 f1N+ Kd1 Nd2 Rg5 Nb3 Ra2 d2 Be4 Ba5 Ne2 Bc3 Kc2 d1R Nef4 Bd2 Qf2 Rf1 Qf3 Rf2 Kd1 d3 Rdc7 Bb4 Re7 d2 Bb5 Ba5 Bbd3 Bc3 Kc2 d1R+ Bd2 Rff1 Be1 Bd2 Bh7 Rf2 Bde4 Rdc1+ Kd3 Rc5 Rcc7 Ra5 Kc2 Rb5 Rc8 Ra1 Rcc7 b1B+ Kd1 Ne2 Rc8 g1B Rc2 Bh2 Ng2+ Rf5 Qf4 Ng1 Qd6 Re5 Qb4 Be3 Bc3 Rf4 Re2 Bd2 Qc5 Nf3 Bhf5 Bd7 Bh7 Ba2+ Kc2 Rh1 Reg7 Ng1 Bb4 Bb1+ Kd1 Rf2 Qd6 Rff5 Rc2 Bc6 Bc3 Rf2 Rd7 Rf4 Rd8 Kf7 Qc5 Rf3 Rd6 Ke7 Qb4 Rff8 Rd7+ Kf6 Qd6 Rf7 Qf8 Bb7 Rc7 Bc6 Re7
rQb1rN1b/2N1b2B/6qn/4B1B1/1bb1N2b/1r6/n1rPR3/Kb1RNbk1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 h4 Kd6 a4 Ke5 h5 b5 a5 g5 h6 c5 a6 f5 a7 c3 h7 c4 Qe2 f3 Kd1 Kf4 Kc2 Kg3 e5 f2 e6 b3+ Kd1 b4 e7 b2 Kc2 b3+ Kd1 f4 e8N f3 Qd3 Na6 Nd6 Qf6 Bg2 f1B Ra4 Kf2 Rb4 g3 Nf5 g4 Rb6 Qg6 Nd6 Nb4 Nf5 Na2 Qe4 Bb4 Qe7 Nh6 Rh4 Re8 Bh1 g2 h8B g3 Qb7 Bd3 Bd4+ Kf1 Rb5 f2 Nf3 g1B Be3 g2 Ne7 Bh2 Ne1 g1B Bf4 Bg3 Rh2 Bh4 Rg2 Bh2 Bg5 Be5 Qb8 Bh8 Rh2 Kg1 Be4 f1B Re2 Qc6 Bh7 Qg6 Nd5 Be7 Nb6 Bb4 Nd7 Be7 Na3 b1B Bb2 Bb4 Ba1 b2 Nf8 Be7 Nac2 Bb4 Ne3 Be7 Ng4 Bb4 Nf2 Be7 Ng2 c2+ Ke1 c1B Kd1 c3 Ne1 Bc4 Ne4 Bbd3 Rb6 b1R Re6 Rb2 Rb6 Rc2 Rb1 Bca3 Rc1 Rb2 Rb1 Rb3 Bb2 Nb4 Kc1 c2 Ra1 Nd5 Rb1 Bab4 Be5 Nc3 Ra1 Ra3 Kb2 c1R Rb1 Na2 Ka1 Rcc3 Rc1 Rab3 Rd1 Bb1 Qb5 Rb8 a8N Rc2 Nc7 Ra8 Qb8
kN1b1rnB/5B1N/1r2N1Kb/R2B2P1/q5r1/q6n/nrB1pqbr/2QR4 b - - 0 1 illegal: No possible last move
B1q1rqR1/7r/b1r1Q1Rn/3NqP1K/1R3B1b/pnRB4/1b6/1rNknr2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 Kc4 b5 e5 c3 d5 f5 h5 g5 a5 g6 h3 b6 d3+ Kf2 e3+ Kf3 h2 g7 a3 b7 h4 Kg4 e2 Bh3 e1N Bg5 d4 Qc2 d2 Qd3+ Kb3 Nf3 d1R Rf1 h1R Ng1 e4 Rf4 a4 Qf1 Kc2 c4 d3 c5 d2 c6 a2 c7 a3 Nc3 e3 Bg2 h3 Na4 h2 Qa6 e2 Qd6 Rh6 Nc3 Nc6 b8R Be7 Nh3 Nd4 Qe6 Nb3 Rb6 Rf1 Nb1 h1R Rfb4 Ba6 c8B Qf8 Be3 Bh4 Nc3 Rb1 Nd5 d1Q Bf4 Qc1 Ng1 Kd1 Be4 Qc6 Bb7 Re8 Ba8 Qc8 Bd3 Rf6 Kh5 Nh6 g8R Rg6 Qf7 Rc6 Qg6 Nf3 Qe6 e1Q Ne2 Qc3 Bc7 Ne1 Bf4 Qe5 Nc1 Rhg1 Rc4 Rg7 Rc3 Rge7 Rb4 Rh7 Ne2 Rc1 Rb1 a1B Rb2 Rb1 Nc1 Rhc7 Re2 Rh7 Reg2 Bb2 R2g6
b7/k2Q2RN/bBR2pr1/qrR1q2N/1b1bPn2/7r/2Kbnn1N/1B2N1q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 h4 Kd7 c4 Kc7 a4 Kb6 e4 g5 c5+ Ka7 h5 b5 a5 f6 c6 d3 a6 g3 c7 f3 h6 b3 h7 b2 Bg2 f2 Qc2 f1B Qc3 d4 Qb3 g4 Nh3 b4 Qe6 b3 Qf5 Bb7 c8R Ne7 Ra2 Nbc6 Rh2 Qa5+ Nc3 b1R Ba3 b2 Nf4 Ng6 Qd7 Bb4 Nh5 Nf4 Rc7 Be2 Bf1 Rag8 Rg2 Rg6 Rg1 g2 Rc8 Nd8 Rc5 g3 Ra1 Nde6 Rc6 Re1 Rc1 b1Q Rc5 Rb8 h8N Qa1 Nf7 Rh8 Rc2 Rb1 Ne5 Rhh6 Nf3 Rh7 Qc8 Ba8 Nh2 Rh8 Rc6 Qe5 Bc1 Qaa5 Ba3 Rb3 Kc1 Rh7 Nd1 Rhh6 R2c3 d2+ Kc2 Rh8 Ne3 d1N Bb2 Nf2 R3c5 Bd2 Ba3 Rb5 Bb4 Bc4 Bd3 Ne2 Qe8 N6f4 Qd7+ Qac7 Ba5 Rhh6 Rh1 g1B Ng2 Rh7 Ne1 g2 Qf5 Qd8 Bc7 Rh8 Qd7 Rh7 Ng7 Rh3 Nh5 Bb4 Ng4 Bh2 Rg1 Bg3 Nh2 Bh4 Kb2 Bg5 Bb1 d3+ Qd4 d2 Kc2 Bb7 Qd7 Bd5 Bd6 Qa5 Bc7 Ka8 a7 Ba6 Nf1 Kb7 a8N Ka7 Nb6 Bh6 Nh2 Bg5 Rd6 Ba8 Rdc6 Bh6 Qd4 Bg5 Nd7 Bh6 Nf8 d1Q+ Kb2 Bg5 Nh7 Bh6 Ba2 Qa1+ Kc2 Bg5 Qd7 Qad4 Rf1 g1B Bb1 Nd1 Rb6 Rg8 Qc6 Ng2 Qd6 Bgd2 Qe7 Ngf4 Rbc6 Qf2 Qd8 Qg2 Qe7 Bd4 Rg1 Nf2 Qd7 Qh1 Rg3 Qg1 Rg2 Rg6 Rg4 Rh6 Rg7 Rg6 Bb6+
r1k1n1n1/BPq1rr2/pR1BqBq1/b2N4/N4K1Q/b3r3/4b1Br/R1R3n1 b - - 0 1 illegal: No possible last move
3RNqn1/1pqN4/b2QP1KB/2R3b1/qr3r1r/b6N/Brr2B2/2nN2nk b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kf6 a4 Ke5 c4 g5 h4 d5 a5 f5 h5 b3 c5 d3 h6 b2 h7 d4 c6 f3 Kg3 f4+ Kh2 d2 a6 f2 c7 g3+ Kg2 g4 a7 d3 Ra2 Nd7 Rh4 f3+ Kh1 Kf4 e5 g2+ Kh2 Nc5 e6 Bd7 c8N Qc7 Qe1 Nb3 Ra3 Bb5 Rh6 g3+ Kh3 Ba6 Nd6 Rc8 Nc3 b1R Kh4 Rb2 Be2 f1Q Kh5 f2 Nf3 g1N a8N g2 Kg6 Kg3 Nb6 d1Q Bd2 Nc1 Ra5 Qa4 Ne8 Ba3 Rc5 Rb4 Be3 d2 Ng5 d1R Bc4 Rd2 Nh3 Kh2 Nd7 Kh1 Qd1 Rdb2 Rh4 Nf3 Bd4 g1B Ba2 Bh2 Rhh5 Bf4 Rhd5 Bg5 Bg7 Ng1 Bh6 Qe1 Qd3 f1R Nd1 Rff2 Qg3 Qf1 Qd6 Rfc2 Nef6 Rf8 Ne8 Rff4 Rd4 Rh4 Rd2 Nf6 Rdd5 Rf8 h8B Ng8 Bd4 Rff4 Bf2 Rfe4 Be1 Qf8 Bf2 Ref4 Qc6 R4b3 Ndf6 Rff3 Rd8 Rbb4 Qd6 Rff4 Nd7
r1qb2RK/1n2k1nb/1R1BBN2/1N4Rr/pr1r1P2/1Q2Nr2/2r4R/3q1q1r b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 e5 g4 a5 b4 d5 f4 h5 c4 d3 Ke3 d2 b5 a3 b6 a2 b7 h3 c5 a4 c6 d4+ Ke2 h4 g5 h2 c7 e3 Kd3 e4+ Kc4 e2 g6 e1R g7 h3 Qe2 d1Q Nd2 e3 Rb1 a1Q Ba3 d3 Qf2 e2 Bc1 Bf5 c8R Bh7 Rb4 Ke7 Qf3 Na6 b8N Nc5 Qg3 Nh6 g8R Nb7 Rg5 Nf5 Rb6 Ng7 Ngf3 Rg8 Bg2 Rf1 Nd4 e1R Bd5 Re2 Nd7 Rf3 Nf1 d2 Be6 Qe8 Rb8 Qc8+ Kd5 Re4 Nb5 Rb4 Ba3 Qac1 Rg1 h1R Ke5 h2 Rg2 Q1c4 Ne3 Qcf1 Re2 Rh8 Nf6 Rg1 Nfg4 h1R Rh2 Rg2 Qh3 Qb1 Nf6 d1R Qg3 Rd4 Qh3 Rc2 Qg3 Qbd1 Qh3 Kd8 Qg3 Rbb2 Bd6 Be7 Qh3 Rff2 Qf3 Rbb4 Qd5 Rf3 Qb3 Bg8 Bh3 Rh5 Be6 Ne8 Kf5 Ng7+ Kg6 Bh7+ Kf7 Bd3 Kg8 Be4 Nfd5 Bh7+ Kh8 Ke8 Bc7 Bd8 Nf6+ Ke7 Be5 Qd7 Rc8 Bc7 Rd8 Qc8 Rg8 Bd8 Bd6+
rrrBrN2/2n2BqQ/k7/Bbb3n1/1R1N4/3rpN1n/1P1B1nR1/1K2b1n1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 g5 h4 e5 f4 a5 c4 d5 Kc2 Kd7 h5 Kc6 h6 Kb7 c5 a3 f5 a4 f6 e3 h7 d3+ Kc3 a2 c6+ Ka6 f7 g3 c7 g4 Ne2 a3 Ng1 e2 Rh4 e1B+ Bd2 d4+ Kb3 g2 Bb4 g3 Nf3 g1N Nbd2 e4 Bc5 e3 Qe2 g2 Ng5 Nh6 Rh2 Qd7 Rc1 a1R Rc3 a2 Ne6 Rc1 Bb4 a1R Qh5 Bc5 f8B Nf7 Rc4 Nh3 Nf3 g1N Rg2 d2 Be7 d1N Ba5 d3 Bd8 d2 Nf8 Nfg5 Rb4+ Rc4 Bd3 Ndf2 Bg6 Qg7 Bf7 Bd7 c8N d1R Na7 Bb5 Nc6 Rac1 Ka2 Rd3 Qh4 Re4 Ncd4 Rg8 h8B Re8 Qh7 Rcc3 Kb1 Rb3 Bf6 Rc8 Nfe6 Rge8 Be7 Nd7 Bf6 Nb6 Nf8 Nd5 Bfd8 Nc7 Nf5 Qg6 Bc3 Qg7 N5d4 Ba4 Rc4 Rbb8 Bd2 Bb5 Rb4
1n1q1BK1/2rB4/rNbb1Qnq/qqR5/4nkB1/p5Nr/1P1N1q1R/B6q b - - 0 1 illegal: Other
Rr6/qbR2n2/N1b2bk1/1B4n1/q2BPn1r/r1b2p2/1NN2KRb/4Rb1Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 d5 h4 f5 a4 Kf7 c4 b5 a5 g5 a6 b3 a7 g3 c5 g4 c6 d3 c7 f3 h5 d4 h6 b4 h7 g2 Ra6 b2 Be2 d2+ Kf2 b3 Rh3 d3 Ra2 g3+ Ke3 f2 Ra4 f1B Rd4 f4+ Kf3 Be7 Rb4 Nc6 Rh5 Qd4 Rh2 Bf6 Rb6 Kg6 Qe1 d1B Be3 d2 Rb5 Nh6 Rh3 Nb4 Rh1 Nd3 Na3 b1N Rbh5 b2 R5h3 Ba4 Qc1 d1Q Bf2 Bb7 c8R Nf7 R3h2 Bac6 Nh3 g1B Rc7 g2 Be3 Q1a4 Nc2 Rhb8 h8R Nd2+ Kg4 b1R Nf2 Rb5 Nd1 Nf3 Nb2 N3g5 Qa1 f3 Kg3 Qd7 Bd4 Nf4 Rhc8 Rb3 Bb5 Ra3 Rch8 Be3 Qe1 g1B Rg2 Bd2 Qb1 Bh2+ Kf2 Bc4 Re1 Bc3 Re8 Bf1 Qd1 Rc8 Qa1 Rab8 a8N Qa7 Bc4 Qe7 Rd7 Bd3 Re2 Qb4 Qh1 Qba4 Nc7 Ra8 Re1 Bf1 Bb5 Rd8 Na6 Rac8 Re6 Rh8 Rc7 Rh4 Rd6 Re8 Rd8 Rg8 Ra8 Rgh8 Nab4 Rb8 Na6
qR4B1/2B5/b7/qRqqNPq1/n3nNR1/1qrr3b/k1pQBb2/2r2R1K b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Kc6 Kf2 Kd5 Kg2 b5 d4 h5 a4 e5 g5 c5 g6 b3 g7 h3+ Kh2 e3 a5 h4 a6 e4 a7 e2 Na3 e1Q Bg2 c3 Qh5+ Qg5 Qf3 c2 Qe3 b2 Bf3 b1B Bd2 c1Q Bh5 c4 Be8 c3 Nf3 b4 Qd3 e3 Bg6 b3 Qb5+ Bc5 Nc4 b2 Qb3 e2 Qa2 Nf6 g8R Ne4 Qa4 Ba6 Bf5 Nd7 Qd1 Rc8 Rg6 Rhd8 Na3 Nb6 Ng1 Na4 Nc4 Bd3 Rg7 b1Q Bh7 Qb3 f5 c2 Be3 Qa5 Bf4 e1R Ne5 Qe3 Rb1 Bf1 Qd2 Rc1 Ne2 Bb6 Rg1 Rc3 Kh1 h2 Rb7 Bh3 a8B Qbb4 Rf1 Qbc5 Rb5 Qd3 Bg3 Qc4 Bf4 Qb3 Rb8+ Bb7 Nd7 Kc4 d5 Ba6 d6 Ba7 R5b7 Bb6 Bg8+ Kb4 Ne5 Ka3 d7 Ka2 Bg3 Nd6 Nf3 Bg4 Kg2 Qcb5 Re1 Bf2 Rf1 Qc5 Rb5 Nc4 Bc7 Nd6 Rd1 h3+ Kf1 Rc4 Ne5 Rc3 Bf3 h1Q+ Ng1 h2 Be2 Qf3 Nh3 Qa8 Re1 Rf8 d8R Rf7 Rd7 Rf8 Rh7 Rd8 Nf4 Rd7 Rh3 Rd8 Rg3 h1Q+ Rg1 Qhb7 Rd1 Ne4 Kg2 Bh3+ Kh1 Rdd3 Rg4 Q7d5 Rf1
1bN2n2/N2B2Rr/1bqrpn1k/nBN5/3B2n1/K3nP2/1R1N1Qn1/3bq2q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 a4 Kg6 c4 d5 Kc2 b5 Kb3 h5 g4 d3 a5 h3 c5 d4 a6 h4 c6 h2 c7 e3 a7 h3 g5 d2 Ka2 e2 Qb3 d1N Qe3 e1B Nf3 d3 Qd2 b3+ Ka3 b2 Qa5 d2 Qc3 b4+ Ka4 b3 Ng1 Qe8+ Bb5 Nd7 Ba6 Ne3 Qc6+ Ngf6 Bc4 d1N Bg8 Ng2 Qc5 Rh7 Ra2 Ba5 Na3 b1Q Nb5 b2 Ka3 Nde3 Be6 Bb6 Nf3 Ba6 Rf1 h1Q c8N h2 Rg1 Qc2 Qd4 Qc6 Nd2 Bg7 f3 Nf8 Bd7 b1N+ Kb4 Rb8 a8N Na3 Nac7 Nac4 Bb2 Na5 Nba7 Be2 Ne6 Bd1 Nc5 Kh5 g6 Kh6 Ka3 Ra8 Nd6 Rd8 Ndc8 Bh8 Bc3 Bg7 Rb2 Bh8 Bg4 Rd6 g7 Ned5 g8B Ngf4 Ka2 Rd7 Nde4 Qg2 Rf1 h1N B4e6 Nf2 Qb4 Qh1 Bh3 N6h5 Ka3 Be5 Bd4 Nhf6 Rg1 Bb8 Rg7 Rd6 Qe1 Ng2 Bd7 N2g4 Qg3 Nde3 Qe1 Qeh5 Nd2 Q5h4 Bc4 e6 Bb5 Qg3 Qe2 Qge1 Qf2
b1nN3r/1BbNQq1p/2K4b/1B1P1N2/1Nkb4/n1q1r3/3r1b1R/3nB1Rb b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 d4 Kd5 g4 e5 a4 b5 f4 c5 f5 h3 a5 b3 a6 b4 f6 b2 g5 h2 a7 c3 f7 c2 g6 c4 g7 b3 Qh5 c3 Ra2 Ne7 g8B Bh6+ Qg5 Qd7 Ra3 Nf5+ Ke2 e3 Kf3 e4+ Kf4 e2 f8N+ Qf7 Nd2 e1R Ng6 b1Q Ra2 e3 Nh4 e2 Ba3 c1B Ngf3 b2 Ne5 c2 Nc6 Nd7 Rg1 h1B Nd8 Nb6 Bb4 Qa1 Ba5 Rb8 a8N b1N Bh3 Ba3 Nc4 Qc3 Nb2 Bc5 Nd3 Bb7 Nb4+ Kc4 Ke5 c1B Bg2 Ne3 Qe7 Nc8 Nf5 Nd1 Rc2 Na3 Nb6+ Kb3 Ra2 Ba8 Nd7 Kc4 Bb7 Bb6 Rd2 Bb2 Rc2 Rf1 Rd2 e1B Rh2 Rf3 Ke4 Bf2 Ke5 Na7 Kd6 Nc8+ Kc6 Re3+ d5 Qe8 Bf7 Bc7 Bh5 Qf7 Bg4 Qd2 Bf3 Bd4 Be4 Qb2 Bc2 Qc3 Ba4 Nd6 Ne6 Rbg8 Nd8 Rg2 Na2 Nc8 Bb4 Qc2 Be1 Qc3 Nb4 Bfg3 Qg5 Rd2 Qe7 Bf2 Bb5+
2n1R1n1/5KP1/bNBq1b2/Rqr5/3nr2b/qNNbb3/3p2NB/2RbQ2k b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kf6 g4 Kg5 a4 Kf4 g5 h5 c5 d5 f3 Kg3 g6 e5 f4 b5 g7 h3 c6 h2 f5 h4 a5 e3+ Kd3 e2 c7 e1B f6 b3 f7 b4 a6 h3 a7 e4+ Ke2 d3+ Ke3 b2 Kd4 e3 Ke5 b3 Bg2 e2 Ra6 d4 Rh6 Bd2 Rb6 e1B Ra6 Qd6+ Ke4 Nd7 Kf5 Be7 f8R Rh4 Re8 Bf6 Kg6 Nb6 Bc6 Re4 Ba4 Kg2 Na3 b1B Re7 b2 Rf7 Beh4 Ra5 Ba6 Nc2 Rc8 a8N Bh6 Bg5 d2 Be3 Qa3 Bf2 Be3 Na1 Bbd3 Bg3 b1Q Rd7 Qac1 Nf3 Qa3 Rf1 h1N Rd8 h2 Re8 Qbb4 Bd6 Ng3 Bd7 Qb5 Kf7 Qb1 Rh1 Nf5 Bf4 Qb5 Nb3 Bc2 Qb1 d1Q Rf1 h1B Bh2 d3 Qa1 Bb1 Qc3 Qd2 Rc1 Qd1 Bd6 Qd2 Ne1+ Kg1 Qb4 Bf3 Bh2+ Kh1 Ng2+ Bd1 Qc3 Qdb2 Qd2 Qd4 Qe2 d2 Qe1+ Qf1 Bb5 Qdd6 Ba4 Nd4 Bd7 Nd5 Nb6 Nde7 Nd5 Bbc2 Nc3 Bb1 Qg3 Qb5 Qf2 Bd3 Qg3 Ra8 c8N Rb8 Nb6 Rc8 Qf2 Rc5 Bc6 Nc8 Qe1+
6n1/P1R5/q2n2B1/k1bKN1RB/1q6/rnN1rp1n/Qn1Bnr1N/Bb3b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 Kd7 h4 Kc6 c4 Kb6 a4 g5 h5 f5 e5 b3 h6 f3 e6 g3+ Ke1 d3 Kd2 f2 Kc3 f4 Kd4 b2 h7 d2 c5+ Ka5 c6 b5 c7 b4 e7 g2 e8N b3 Na3 b1B Bb2 g4 Be2 f1R Nf6 f3 Nh3 g1N Nb5 g3 Ke5 d4 Qc2 d1N Rh2 d3 Nd4 g2 Nd7 d2 Kd5 Ba6 c8B Nf2 Nb5 d1N Bd3 Qf6 Bg6 Bc5 Bc1 b2 Ne5 Nc6 Nc3 Ne4 Nf2 Nd4 Bd2 Nb3 Nfg4 Nd6 Rh5 Nh3 Nh2 g1N Bg4 Ne2 Rg5 Rf2 B4h5 Re8 Nf7 Re3 Ne5 Ned4 Ra2 Bf1 Ra3 Ne2 Ra1 Ba2 Rc1 b1Q Qb2 Qe7 Rc2 Qa1 Qa3 Bb1 Qa2 Nb2 Rc1 Nh6 Rc2 Ra8 h8B Ng8 Rc1 Kb4 a5 Qf8 a6 Qb8 Na4+ Kb5 Rc3 Ka5 Rc4+ Qb4 a7 Rc8 Rc1 Rc6 Rc2 Ra6 Nc3+ Kb6 Nb5 Ra3 Rc4 Ka5 Nc3 Bd4 Rc7 Bc5 Bf6 Kb6 Nd3 Nbc4 Nb5 Ra6 Qa3 Qa2 Ba1 Nb2 Qa4 Qaa3 Nc3 Ra5 Qd7 Qaa4 Qe8 Qab5 Ne5 Qa6 Qd7 Ra2 Qe8 Ka5 Qd7 Nd1 Qf5 Ra4 Qc2 Ra3 Qa2 Nb2 Bh7 Nec1 Bc2 Ne2 Bcg6
6bK/p2NBq1B/r1Nq1R1R/3n4/2kbq1nn/3r4/RbP1nQ2/R2Nn2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf3 h5 b4 f5 g4 a3 e4 d3 g5 d2 g6 a2 g7 h3 b5 d4 b6 h2 e5 Kd5 e6 h4 b7 h3 e7 d3 e8R Nh6 g8N Nc6 b8R Ne5+ Kf2 f3 Kg3 f4+ Kf2 Qd6 Na3 Bg7 Rb3 Nf5 Nc4 Nh4 Rab1 a1B Rf8 Be6 Ra3 Rh6 Ra6 Rd8 Rb3 Bb2 Be2 Ng4+ Kf1 f2 Ra2 Bgd4 Qe1 d1N Rba3 d2 Ne5 Nc3 Nd7 d1N Bd3 Ne2 Rf6 Ndc3 Bh7 Kc4 Ne7 Bg8 Nc6 Nd5 Bd2 Rg6 Bb4 Rh6 Nf3 Rg6 Ng5 Rh6 Ne4 Rg6 Rg1 h1Q Nc3 h2 Ra6 Qe4 Nd1 h1N Qd2 Nf3 Kg2 f1N Kh3 Ne1 Kh4 f3 Kh5 f2 Qf4 Nd2 Ba3 f1Q Qf2 Ndf3 Rb6 Qdf4 Be7 Nh4 Rba6 Qd6 Rb6 Rg7 Rh6 Rg6 Rba6 Re6 Rf6 Nge3 Kh6 Ng4+ Kg7 Ra8 Qh2 Rd8 Kh8 Qff5 Qg3 Qg6 Qf2 Qf7 Ra1 Rb8 Rg3 Rb3 R6a2 Rd3 Rh3 Qde5 Ncb8 Ra6 Nc6 Qd6 Rh2 Nhf3 Rh5 Nh4 Rh6
1r2N3/3B1K1N/1r2nP2/2bp1r2/Q2Bk2N/q1qbB1Rq/B2qr1n1/R1q1r3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kg6 c4 Kf5 a4 d5 f4 e5 a5 g5 h5 b5 h6 b3 a6 g3 a7 b4 c5 e3+ Kd3 e4+ Ke2 b2 c6 d3+ Ke1 b3 c7 d2+ Ke2 g4 h7 g2 Rh3 g3 Rh1 Nd7 Nh3 g1R Ra3 g2 Nf2 Qh4 Ng4 Nc5 Rh2 Ne6 Ra2 Ne7 Nf6 Qh3 Nc3 b1R Qc2 b2 Ra6 Ng6 Nb5 Rb8 a8N Nh4 Ra1 Bc5 Qa4 Ba6 c8B Rf8 h8B d1R Nh7 Rd2+ Ke1 e2 Bd7 Rh1 Nac7 g1Q Rg2 Qge3 Rg3 Qa3 Bd4 Ng2+ Kf2 e3+ Kf3 e1Q Bc4 Re2 Ne8 Qec3 Ba2 Rhe1 Bd2 Rb6 Bc1 Rc2 Bd2 e2+ B2e3 Qd2 Na7 Bc4 Nc6 Bd3 Ne5 Rf6 Ng6 Qdc3 Kf2 Ke4 f5 Rf7 Nh4 Rf8 Nc7 Rfb8 f6 Rbc1 Qc4 b1Q Ne8 Rcd1 Qa4 Qbc1 Rg6 Qf5+ Kg3 Rf1 Bg5 Rde1 Bge3 Qh5 Kh3 Rf5 Rg5 Qf3+ Rg3 Qf1 Kg4 Qh1 Bg5 Qh3+ Kh5 Rd1 Kg6 e1Q Qb3 Re2 Bge3 Qed2 Qa4 Rde1 Kf7
1b1B1k2/5b2/PN1nQ3/1nN4R/1R2nK1b/bqB1nB1p/q1b3rR/r2n3R b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 e5 c4 b5 g4 h3 f5 e3 Kf3 h4 a5 h2 c5 h3 f6 b3 c6 e2 c7 e1B g5 d3 g6 b4 g7 b2 Bf4 e4+ Ke3 b3 Bg3 d4+ Kf4 d2 Ke5 e3 Nf3 e2 Ng1 d3 Nf3 Nc6+ Kf4 Be6 c8R Nge7 g8R Bf7 Rg6 Nf5 Nc3 b1Q Ra3 b2 Ra2 Ba3 Nd4 Rg8 Nd5 Nd6 Rc7 Kf8 Bf2 Na7 Qc2 d1N Qc4 d2 Rh6 Ne3 Nb6 d1N Bh4 Rg2 Rb7 Qb8 Nb3 Nab5 Rh5 Bc3 Qe4 e1B Nc5 Qa1 Be2 b1B Qc4 Bc2 Qe6 Bcb2 Bg5 Bh4 Bf3 Bd4 Rb2 Qa2 Rb4 Ba1 Re7 Qb7 Rc7 Qbd5 Rc6 Qdb3 Rc8+ Be8 f7 Bh8 Bd8 Ra7 Rg1 h1N Rb8 Ng3 Rh1 Nge4 a6 Rc7 Bf6 Rc6 Bc3 B8f6 Rc8 Bd8 Rb8 Bc7 Rd8 Bb8 Rd7 Ndf5+ Rd6 Rc7 Rd2 Nfd6 Re2 Rg1 Reh2 Rg2 Nba4 Rc6 Nb6 Qbb2 Bf6 Ba4 Nb3 Rc1 Nc5 Bc2 Bd8 Qbb3 Qe7+ Kg7 f8B+ Kg8 Qe5 Ra1 Qe6+ Bf7 Bfe7 Kg7 Bf6+ Kf8 Bc3
bb6/rrbpNn2/3N3B/n1Rn1n1K/bn2N3/2R1q1R1/Q1RP4/b1k2qB1 b - - 0 1 illegal: No possible last move
n2N3r/nr1NK1Br/R2R1n1Q/1b2n1q1/2qk1b1q/2qn4/BR1p2P1/1B1B4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 a4 f5+ Kh5 d5 e4 b5 c4 h3 a5 d3 a6 f3 a7 d2 c5 b3 c6 b2 c7 b4 Ra2 b3 Ra4 f4 Bb5 f2 Bf1 f3 Rh2 d4 Ba6 f1N Rh1 h2 Ra3 d3 Ra1 f2 Qg4 d1Q Na3 b1R Nb5 d2 Qe2 b2 Nd6 Qc2 Bb5 Nd7 Ne8 Ba6 c8R Nb6 Bd7 Nf6+ Kg5 h5 Ng7 h4 Bg4 h3 Qe3 Bd6 Ne6 Bb5 Rc6 Qc3 Ra6 Rh7 Bd1 Qe7 Kg6 Rah8 Nd8 Na8 Qh6 Kd4 e5 Ne3 e6 f1Q Kg5 Qfc4 Nf3+ Kd3 Rg1 h1Q Ne5+ Kd4 Nd7 h2 Kg6 Bf4 Rd6+ Ke4 Rf1 Neg4 Rg1 Ke3 Kf5 Qg7 e7 Ne5 e8B Qg3 Bg6 Qh4 Rdb6 Kd4 Re1 Qhf1 Rd6+ Qd5 Bf7 h1N Be6 Qfc4 Bg8 Nc7 a8B Nf2 Bb7 Na8 Re3 Q3b4 Rb3 Nfd3 Bf7 Qbc3 Be6 Ra1 Bg8 b1N Bb2 Ra4 Ba1 Na3 Rb2 Rb4 Bf7 Ke3 Bg6 Qg8 Bd5 Qg7 Ke6 Kd4 Be4 Qgg5 Bf5 Ba4 Bg6 Nb5 Be4 Na7 Bg6 Nf7 Ke7 Rb7 Bge4 Bb5 Bg6 Nde5 Bgc2 Nd3 Bb1 Qc6 Bda2+ Qcd5 Rdc6 Qdc4 Rd6+ Nd5+ Ke6 Ke4 Ra4 Q3b4 Rc2 Qa5 Bd4 Qac3 Bg7 Nfe5 Raa6 Nf6+ Ke7 Ke3 Rb2 Ke4 Rdc6 Kd4 Rd6+
qn1qnbN1/1Bnn4/bk1r2bN/R7/b1Nb4/R1P1pQr1/BK3B2/3N3r b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 a4 b5 g4 e5 f4 d5 a5 Kd7 c3 Kc7 Kc2 e3 a6 e4 g5 e2 f5 e1B g6 b3+ Kb2 d3 a7 h3 g7 b4 f6 d4 f7 h2 Nd2 h4 Qc2 h3 Ngf3 Rh6 Kb1 b2 Bg2 Ba6 Nb3 d2 Ra2 d1N Nh4 d3 Bf3 d2 Na5 Kb6 Nb3 Ne3 Bg4 d1B Nd2 Rd6 Be6 Ng4 Nf5 Ne5 Nf3 Ned7 Ra5 Ngf6 g8N Bf2 Ba2 Ne8 Ng1 Bd4 Qd3 Ba4 Qf3 e3 Bd2 B4b5 Kc2 b1N Nfh6 b3+ Kb2 Na3 Be1 Ba4 Bh4 Nb5 Bf2 Be7 f8N Nbc7 Ng6 Bf8 Ka3 b2 Ne5 b1B Kb2 B4b5 Ra3 Bg6 Ra5 Bc6 Ra3 Ba4 Nc4+ Kc5 Ne2 Kb5 Ra1 h1Q Nf4 h2 Nh3 Kc5 Bg1 Qg2+ Nf2 Qh1 Nd1 Qg2+ Nd2 h1R Bf2 Kb6 Bd5 Nc6 Ba2 Rc8 a8B Ncb8 Qh3 Qb7 Qf3 Qa7 Bb7 Qa8 Qg4 Nd5 Qe2 Rc5 Qf3 Ndc7 Rc1 Rg5 Nc4+ Ka7 Rc2 Rg3 Rd2 Bh8 Rd5 Bd4 Nd2 Kb6 Rc5 Ne6 Ra5 N6c7 Nc4+
1nr2N2/qRrq2r1/r6b/2q4b/1b1Q2bK/1PNRpBBB/1rk2n2/1N5N b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 Kf7 c4 Kf6 f4 h5 Kf2 a5 g5+ Kf5 g6 d5 b3 e5 c5 h3 Kg3 h2 g7 e3 c6 Ke4 f5 h4+ Kh3 e2 c7 e1B Bc4 a3 Bd2 a4 Bf1 d3 Kg4 d4 Bb4 h3 Bc3 a2 Be2 d2 Na3 d3 Bd4 Qd5 Qc1 d1B Nb5 a3 Bb6 d2 Nf3 Rh7 Kg5 Nf6 g8N Rg7+ Kh6 Ng4+ Kh5 Nf2 f6 Bg4+ Kh4 Qc5 Rg1 h1R c8B h2 Rb1 a1R f7 a2 Rg3 Ra6 Rb2 Rb1 Qc3 a1Q Ra2 Rb2 Bc7 Rg1 Rh3 h1R Ne7 Rg8 Bd6 Bh6 f8N Bh5 Ra5 R1g7 Nf5 Rhg1 Ra2 Rc7 Ra3 R1g7 Ng3+ Kf4 Qb4+ Ke3 Nc3 e4 Nh1 Qa2 Ra4 Qa3 Be6 Qa7 Qb6+ Qc5 Rb4 Rh8 Bg3 Bg4 Ng6 Rhc8 Nf8 Bh5 Qd6 Bg4 Rb7 Bh5 Bd3 Be2 Bg4 d1Q Nd2 Bf3 Bd7 Bfg4 Ndb1 Qd2 B3b5 Qdd4 Ba4 Kd3 Bac6 Kc2 Be6 Qd3 Qd4 Qd1 Rh2 e3 Bf3 Qd3 Rg2 Qdf5 Rg1 Bd2 Rd1 Be1 Rd3 Qfd5 Bg2 Qd7 Bed5 Bd2 Bh3 Be1 Bf3 Bd2 Ne4 Bb4 Nec3
4Qqbk/2n5/RBNr3n/3BBq1q/N2b1pb1/1P4N1/3r1rbq/R1N1K1b1 b - - 0 1 illegal: No possible last move
1q4b1/3NK1N1/1r2b1R1/bn1B1q2/1Qb1PbRB/rkqp1N2/2N3n1/1q2R2n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Kc5 c4 d5 a4 b5 h5 g5 h6 f5 a5 g3+ Kf3 g4+ Ke2 d3+ Kd2 b3 Kc3 f3 a6 d2 h7 b4+ Kd3 f4 a7 g2 Qe1 d1N Be3+ d4 Rh3 f2 Nc3 f3 Rc1 b2 Na2 b1Q+ Rc2 g3 Qd2 b3 Rh4 b2 Rh2 Nc6 Bf4 Nh6 Nc1 Ng4 Rh1 Be6 Bc7 Bh6 Qe1 Bf4 Na2 Nde3 Nb4 Qb8 Bd8 Qc1 Qd2 b1B Bh4 Ba2 Be2 Rf8 h8R f1B Rh6 f2 Rg6 Rf6 Nf3 g1Q Rb2 g2 Nc2 Bg8 Rb7 Qb1 Rbg7 Qh2 Qe1 g1B Qc3 Qh3 Qd2 Kb6 c5+ Kb5 Qe1 Ka4 Qd2 Na5 c6 Bae6 c7 Ng2 c8N Nc4 Ne7 Na3 Nf5 Kb3 Qa5 Bgh2 Rg1 Nb5 Qb4+ Ka2 Rh1 Bc7 Rg1 Bhf4 Rh1 Ba5 Rg1 Bef7 Rh1 Re6 Kc4 Rb6+ Kc5 Be6 Bd1 Be2 Re1 B2c4 Be2 f1Q Bd3 Bb3 Bc4 Nf2 Bd5 Nh1 Rg4 Bc4 R7g6 Qd3 Ng7 Qc3 Rg3 Qf5 R3g4 Rb7 Kc6 d3 Kc5 Qd8 Kc6 Rb6+ Kc5 Rab8 a8N Ra6 Nb6 Ra7 Nd7 Rb6 Nde5 Qb8 Bc6 Nc7 Kd6 Ra8 Ke7 Nb5 Bd5 Raa6 Qc5 Kb3 Qd4 Bb4+ Qc5 Ra3 Nd7 Ba5 Qb4+
bBRBn1K1/r5N1/Bb1b3b/5Qr1/R1p2n2/qNbqk1nR/3P1q2/1R5n b - - 0 1 illegal: Other
8/1b1N1q2/1r1B2b1/NB1R2Pr/1n4nb/Kb4NR/1Bkbnq1p/1N3qQq b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kf6 c4 Kf5 Kc2 d5 Kb3 e5 a4 b5 a5 h5 a6 h3 g3 d3 a7 d2 c5 e3 c6 Ke4 g4 h4 c7 e2 g5 Kd3 f5 d4 f6 h2 f7 e4 Bb2 h3 Ka2 e3 Qe1 d1Q Ba3 b3+ Kb2 b4 Ra2 Qe8 Bg2 Rh5 Qf2 e1Q Nd2 e2 Nb1 Na6 Bc6 Bb7 c8N Nh6 Nb6 Rb8 a8N Ng4 Qf4 Qf2 Nc8 Qdf1 Bd5 e1B+ Kc1 b2+ Kd1 b3 Bc6 Bfb4 f8B Qf7 Qc1 Bbd2 Na7 Nb4 Ba4 Qg8 Nc6 Qgf7 Nc3 b1N Nb6 b2 Na5 Be4 Nd7 Rb6 Nge2 Bb7 Rg1 h1Q Ng3 h2 Bg7 Na6 Bd6 Nb4 Bh8 Na3 Qa1 Nac2 Ra3 b1B Rb3 Nd5 Rb5 Nf4 Rd5 Nb4 Bg7 Ne2 Bb5+ Ke3 Bge5 Bg6 Nb1 d3 Bb2 Bc3 Qa2 d2 Qa4 Be5 Qa1 Bf4 Ne4 Bg3 Rg2 Bh4 Ng3 Nd3 Kc2 Nb4+ Kb3 d1B+ Ka3 Bb3 Nf5+ Ke4 Rg3 Bd2 Rh3 Bc6 Ba6 Bb7 Ng3+ Ke3 Rb5 Kd3 Rd5+ Kc2 Bb5 Q2f4 Nc3 Q1f2 Qg1 Q4f3 Nb1 Qf1 Qg2 Q3f2 Qg1
B6b/1Q1bKNq1/4nR2/2k1r1P1/r4Nqq/3nb1pR/4qNnR/1n1NB2n b - - 0 1 illegal: No proof kernel
3k1R2/3N2QB/rbb2q2/q4Bp1/1b1qrPN1/3R2bn/1BNNn2q/1Kn4q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 h4 e5 c4 d5 Kc2 b5 a4 b3+ Kb2 b4 f4 e3 c5 d3 a5 d2 h5 e4 a6 e2 c6 e1Q h6 g3 a7 d4 h7 g2 c7 e3 Ra4 e2 Na3 d3 Rh2 Bd7 c8B Nc6 Rh6 Nge7 Ka1 b2+ Kb1 Ne5 Rh5 Nf5 Ba6 Ng3 Rh4 Bc6 Qc2 d1N Be3 d2 Bd3 Nf2+ Qd1 Qf6 Rg4 Kd8 Ra6 Nh3 Nf3 g1B Bf5 Nd3 Bd4 Nc1 Nc2 Qf2 Ra3 e1B Rh4 Qh2 B1d3 Nge2 Rc3 Rg8 h8N Bg3 Rh7 B1f2 Qe1 d1Q Ng6 Rg7 Nge5 Re7 Ng4 Re4 Be5 Bb6 Rf7 Qd2 Bh7 Qe3 Nd2 Qd4 Bc4 Bd6 Be6 Be7 Rd3 Bec5 Bef5 Bf8 Na3 Bfc5 Kc2 b1Q+ Kd1 Qdd6 Ndc4 Na2+ Kd2 b3 Bc3 b2 Qf1 Bd5 Qd1 Qfe5 Nc2 Qa1 Qg1 b1Q Qd4 Qee6 Qg7 Qbh1 Bb2 Qf6 N4a3 Bg1 Nb1 Bbc5 Kd1 Bc6 Kd2 Bb4+ Kd1 Rb8 a8N Rb7 Nb6 Ra7 Nd7 Ra6 Na3 Nac1 Kc2 Qa2 Nd2 Qad5 Kb1 Bb6 Nc2 Qa5 Nc4 Qdc5 Nd2 Qcd4 Rf8+
3qQR2/1K2nb1R/1bRr2q1/qnr1pBnn/2R2NPN/1r1B4/3r3B/k2r4 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kf6 g4 Ke5 a4 d5 f3 h5 a5 b5 a6 d3 Ke3 h3 a7 h4 c5 h2 c6 d4+ Kd2 h3 c7 b3 Nc3 e3+ Ke1 b4 Ra6 d2+ Ke2 b2 Kd3 b1R Kc4 b3 Kb5 e2 Kb6 e1N Nce2 d3 Bg2 b2 Nc3 Kd4 f4 e5 f5 Nc6 f6 Bc5+ Kb5 Rh6 f7 Nf3 f8R Nge7 Bf1 Rd6 Na2 Be6 c8R Bf7 Nc3 Ng5 Rc7 Rc8 a8B Na7+ Ka5 Kc4 Qe1 Kb3 Na4 Ka2 Nb6 Ka1 Qe3 Nb5 Nd5 Ba7 Nf3 Bd4 Rg1 h1N Rb6 h2 Ka6 Ng3 Rh1 Bc5 Bc6 Bd4 Kb7 Bc5 Bd7 Bd4 Rg1 h1Q Rc2 Qh7 Bf5 Qg6 Rh1 Rcc6 Rh6 Nh5 Rh7 Rc8 Rc7 d1Q Rc3 Qe1 Nh4 d2 Qf3 Bg1 Rc4 d1R Qh1 Qa5 Bf4 Rd2 B1d3 Rbd1 Bh2 b1R Nf4 Rb3 Qc6 Be3 Ra6 Ba7 Qd7 Rc5 Rc6 Bb6 Qe8
2N1rq2/2B3r1/Kbn2b1R/2P1q1Qp/2B2B2/1bRb2q1/1N1rR2r/k2nB1r1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 Kc4 b5 e5 c3 d5 f5 h5 f6 a5 b6 e3 b7 a3 g5 d3+ Ke1 h3 g6 h2 f7 a2 g7 e4 Qf3 Kb3 c4 a4 Nh3 d2+ Ke2 d1R Ba3 d4 Ng5 Rd2+ Ke1 d3 Qf6 e2 Qf2 Nh6 g8R Bc5 f8B Bb6 c5 Nc6 b8B Bf5 Qe3 Rh7 Rg1 h1R Be5 Rh2 Qg3 Ng4 Bf4 Ne3 Nf7 Rg7 Nc3 Nd1 B8d6 Qf8 Rc1 a1Q Bb4 Kb2 Rh8 a3 Rh6 a2 Bc7 Re8 Rg2 Bh7 Nd6 Bf5 Nd5 Bh7 Rc3 Kb1 Rc4 Qe5 Nc8 a1B Ne3 Bb2 Rc2 Ka1 Qg5 Bc3 Nc4 Bg6 Be3 Qg3+ Rf2 Bf6 Rc3 Rc2 Bd4 Ne3 Nb2 Qe5 Rg2 d2+ Kf2 d1B Rb3 e1R+ Be2 Qe6 Bde5 Rg1 Bf4 Qe5 Bd2 Bf5 Rc3 Bg6 Nc4 Ra2 Bf1 Bb3 Ke2 Rc2 Nb2 Nd1 Rf2 e3 Rg2 Bgf7 Kd3 e2 Rf2 e1Q Rg2 Qh4 Be1 Bfd5 Rd2 Bf3 Rf2 Qg3 Rg2 Ba4 Kc4 Bb3+ Kb5 Rd2 Bc4 Be2 Ka6 Bd3 Re2
n2NBRB1/1bRB4/1rrb4/2pKb3/kq2rB2/1Q1nq2R/NbnP4/1r4b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 e4 Kc6 a4 g5 h4 b5 e5 f5 h5 g3+ Kf3 c3 h6 g2 a5 g4+ Kf2 g3+ Kf3 c2 a6 b3 a7 b2 h7 b4 e6 b3 e7 Nh6 e8B+ Nd7 Rh4 Bb7 Na3 b1R Ra2 b2 Ne2 g1B Bf7 g2 Bc4 Qe7 Ng3 Nb6 Nh5 Ng4 Nf6 Rb8 a8B Ne5+ Ke2 f3+ Ke1 f2+ Ke2 f4 Ne8 f3+ Ke3 Nd3+ Kd4 Bh2 Ra1 g1B Nd6 Be5+ Ke4 Kc5+ Bd5 Kb4 Bh3 f1N Bd7 c5 Nab5 f2 Nf7 Ne3 Nd8 f1R Ra7 Rf6 Nc3 Rc6 Rh3 Qg5 Bg8 Bfd6 Na2+ Kb5 Bf7 Re8 h8R Re6 Bfe8 Re7 Ra3 Qh6 Rb3+ Ka4 Rf8 Bc8 Qf1 Bg3+ Ne6 Ra1 Nb4 b1Q Ba3 c1B Na2 Nc2 Bb7 Na8 Qf7 Qb2 Rb5 Ra6 Bd5 Rb1 Rb7+ Rc6 Rc7 Qb4+ Bc4 Ba6 Bb2 Rb6 Be5 Bb2 Nd8 Bb7 Qd5 B3f2 Qg8 Bfd4 Bce6 Qg5 Qf7 Qg3 Bf4 Qf2 Kd5 Qe1 Qf6 Qe3 Bg8 Bdc3 Qd4 Re4 Qc4 Bce5 Qb3+
KbrnB3/2b2n2/1q1RR2N/kP4B1/q2QR1bq/5b1r/R2p2NB/n1n3b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 d5+ Kb5 Kd7 e4 Kc7 b4 a5 h4 g3 c4 f3 c5 g4 e5 d3 e6 d2 e7 d4 e8R f2 c6 d3 h5 f4 h6 a3 h7 a4 Qe2 d1Q Bh3 f1N Rh2 g2 Nf3 g1Q Qa2 d2 Rhe2 g3 Qc4 g2 Nh4 a2 Qc2 a3 Nf5 f3 R8e4 f2 Qb3 Qh4 Re6 Bd6 Qb2 Ng3 Nc3 Nh6 R2e4 f1B+ Ne2 Nf7 Nh6 Qf2 Qe5 g1B Qd4 Bg2 Nf4 Ne2 Bb2 Bf3 Ng2 Nc1 Bf5 Bf4 Bg6 Qa4+ Kc5 Bfh2 b5 Bg3 Rd6 Bcg4 Rde6 Rc8 h8B B3h2 Bf6 Rh8 Rb1 a1B Bg5 a2 Ba3 Bc3 Rb2 a1N Ra2 Ba5 Kd5 Bg3 Bae7 Be5 Bef6 Bd6 Be5 Qe3 Bh2 Bf4 Qb4 Kb6 c7+ Nc6 c8R Bb8 Rc7 Rc8 Rd7 Ra7 Rdd6 Rd7 Be5 Rdd8 Bh5 Rh8 Qd4+ Kb7 Ra3 Qh1 Qd3 Kb6 Nf5 Nh6 Be8 Nf7 Ra2 Qh3 Bh2 Qg3 Qc4 Rh3 Nh6 Qh4 Qc3 Bb4 Rd7 B4d6 Qc4 Bdc7 Rdd6 Ka5 Qd3 Qa7 Qe3 Ncd8 Qd4 Nb7 Kc6 Nc5 Rg6 Ne6 Rf6 Qc5+ Kb7 Ned8+ Ka8 Qb6 Rfe6
R2N3k/4BRbN/q3b2B/1Pn3b1/BK2bR2/1pr1n3/1nqr3r/n2R1Qb1 b - - 0 1 illegal: No proof kernel
rRBn4/b2Nb2q/1q3nn1/pr2BP2/N1k1b1r1/2RrRn2/6R1/KQ1N1r2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 c4 Ke6 Kc2 a5 b4 d5 Kb2 h5 g4 a3+ Ka2 e3 f4 e2 c5 e1N g5 h3 b5 d3 b6 h2 c6 h4 g6 d2 b7 h3 c7 d4 f5+ Kd5 g7 e5 Ne2 e4 Qc2 d1R Bd2 e3 Bg2+ Nf3 Rg1 h1Q Bb4 d3 Qc3 d2 Qb2 h2 Rf1 Rh4 Nbc3+ Kc4 Bc5 Rg4 Nb1 Ne5 Re1 Nf6 g8N Be7 Ba7 Ng6 Be4 Nc6 b8R Bb7 c8R Qb6 Rg1 Rf1 Nbc3 d1R Na4 Rd3 Nec3 e2 Qb1 e1N Nd1 Nf3 Re8 Nd8 Rg2 Nge5 Bc6 Ng6 Bd7 Be4 Bc8 Qhg1 Nf2 h1R Nd1 Qc7 Bc5 Qch2 Bb6 Qh7 Bc7 Qb6 Bg3 Rh3 Be5 Rb3 Bg3 Rb5 Be5 Nh5 Nf6 Rhg3 Nd7 Nf6 Qb2 Rh3 Rb1 Rhg3 Ka1 a2 Qd2 Rh3 Qe1 Rhg3 Rb3 Rh3 Kb2 a1B+ Ka2 Bc3 Ra3 Bd2 Ka1 Be3 Rd3 Qc6 Rb3 Ba7 Re3 Qb6 Qb4+ Kd5 Qb1 Kc4 Rg8 Rh2 Rg3 Rd2 Rg2 Rd3 Rh8 Qf7 Rh3 Qh7 Rgg3 Rc3 Rg2 Ng1 Rd3 Rcb3 Rhe3 Nf3 Rdd2 Ra3+ Ra2 Rc3 Ra3 Rd3 Rc3+
1qb3r1/3Bbkbr/1QR2R1P/1rNq1N2/4qqq1/2K3N1/1r4np/BBn2B2 b - - 0 1 illegal: No possible last move, all moves rejected
4NnBn/2b1r1Bb/b3Pn1K/2bnN3/qnr3Q1/N5p1/q3q3/2RNkR1R b - - 0 1 illegal: No possible last move
1nbb2Q1/R2bn1r1/2p1Rq2/3rrNP1/R3q3/2NbBn2/6Bb/B2KRnk1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 Ke6 g4 Ke5 a5 Kd4 a6 f5 e5 b5 d3 h5 g5 c3 e6 b3 a7 h3 e7 f3 e8R b2 Re7 h2 Qd2 f4 Qe2 c6 Qc2 f2+ Kd1 b4 Re1 h4 Bh3 f1B Bd7 h3 Be8 b3 Bf7 f3 Qe2 f2 Bh5 c2+ Kd2 Be7 Ra3 Rh7 Bf3 Rg7 Nc3 b1B Ra6 b2 Nd5 Bf6 Bg4 Ne7 Nb6 Bg2 Qe6 f1N+ Ke2 Qf8 Bf4 c1B Nd5 Be4 Kd1 Bf5 Qf7 Bfd7 Qg8 Bd2 Bf3 Be3 Bd6 Bf4 Nc3 Qd8 Nge2+ Ke3 d4 Kf2 d5 Bd3 Rg1 h1Q Ra4 b1N Bg2 h2 Nd4 Nbd2 Re6 Nf3 Bc5 Bc7 d6 Be5 Qf7 Qh8 Qe8 Bd8 Qg8 Qh6 Bb6 Qf6 Bc5 N1d2 Re1 Nf1 Bb6 Kg1 Nf5+ Nd4 Bh3 Qe4 Bg2 h1R Bc5 Rh8 Bb6 Bh2 Bc5 Be8 d7 Rh3 Bb6 Re3 Bc5 Nf3 Bd4 Bb6 d8B Bed7 Bc7 Ba5 Bce5 Bd8 Bf4 Na6 Bde5 Rb8 a8R Rb5 Ra7 Nb8 Nb1 Rd5 Ba1 Qc4 Nc3 Ree5 Bd2 Qe4 Be3+
2bb2K1/k2BrN1p/2n1q1Pb/1Rnb4/7B/3q1Rrn/q1B2N2/1N1qQNq1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 b5 f4 d5 g4 Kd7 a4 Kc7 c4 Kb6 g5 e5 f5 d3+ Ke3 h3 g6 h2 a5+ Ka7 f6 d4+ Kf2 b3 Kg3 b2 Kh4 b4 Kg5 b3 a6 e3 c5 e2 c6 e1Q c7 e4 Qe2 e3 Ra2 d2 Qg2 d1N Qf2 d3 Nh3 d2 Ra3 Qd3 f7 Ne7 Kf6 Bh6 f8N Nec6 Kf7 Nd7 Ne6 Nc5 Neg5 e2 Qg1 Rg8 Nf2 Rg7+ Kf8 Rd7+ Kg8 Re7 Nf7 Rb8 Qg3 Rb5 Rg1 h1B Qe5 Ra5 Rg5 Bd5 Bg2 Qg1 Be4 e1B Qg3 Qe2 Bc2 Qe6 Rf5 Rb5 Ra5 Rb4 Rf3 Rg4 Rb5 Rg5 Qe5 Rg3 Qe2 Ne3 Qf1 d1Q Qe2 Ba5 Qe1 Ng2 Bg5 Nf4 Bh4 Bb7 c8B Nh3 Bd7 Bc8 Kh8 Bd8 Kg8 Ka8 a7 Qd3 Nd2 b1Q Nf1 b2 Be8 Bb6 Bd7 Kb7 a8N Ka7 Nc7 Qbd1 Nh2 b1Q Nf1 Bb3 Nd5 Bd8 Nc3 Qa2 Nb1 Bc4 Ng4 Bd5 Nf2
1BN1k2Q/1n1q1P2/br3nn1/N2q1p2/1bN1bRb1/4Kb2/B1R4r/r3nBN1 b - - 0 1 illegal: No possible last move
B1bk2N1/r1P3B1/1KB4R/6n1/2NN1b1Q/N1r1b1bp/1n2Rnn1/n2q2qq b - - 0 1 illegal: No possible last move
2k1N3/BrPpqr1b/1rR2bBq/2r1B3/K2nN3/nNBQR2q/b2rq3/8 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 c4 b5 Kc2 e5 Kb3 g3 a4 e3 f4 e4 h4 g4 a5 d3 f5 g2 h5 e2 h6 e1Q c5 e3 f6 e2 c6 g3 a6 d2 a7 Be7 h7 Qb6 f7+ Kd8 f8B Ba6 c7+ Kc8 Rh2 Nf6 Rh5 Ne8 Nh3 g1Q Bg2 Nd6 Nc3 Qh1 Rd5 Bf6 Ng1 Nc4 Ra4 Nc6 Rg5 Qh3 Na2 Na3 Rg4 Nd4+ Kb2 b3 Rc4 b4 Rc6 Bd3 Be4 g2 Rg3 Rb8 a8N Rb7 Bd6 Rf8 h8B Rf7 Nf3 g1R Bg6 Bf5 Qc2 d1R Be3 Rd2 Nc3 Qd1 Bdf4 e1Q Ne4 Qde2 Be5 Rh1 Rc4 Qe6 Rc6 Qh6 Bf2 Rh5 Bg1 Qe7 Be3 Q1f1 Bg1 Rd3 Nfd2 Qh3 Re3 Be6 Bd6 Rc5 Be5 Rdc3 Qd3 Rc2+ Ka1 Bf5 Bf2 b2+ Ka2 Rb6 Nb3 Rd2 Bg7 Ndc2 Bc3 b1B+ Kb2 Ba2 Bh8 Bh4 Bhe5 Bf6 Na1 Bb1 Kb3 Ba2+ Ka4 b3 Bg1 b2 Nb3 b1R Bf2 Rb8 Bg1 Nd4 Nb6+ Kb7 Nd5 Kc8 Bf2 Rb6 Bg1 Bh4 Ndf6 Rb7 Na5 R1b6 Nb3 Bg5 Ne8 Bf6 Bh5 Bh7 Bg6 Bg7 Bf2 Bf6 Qb1 Ndc2 Rd3 Rd5 Bf5 Rbb5 Ba7 Rdc5 Re3 R5b6 Bg6 Nd4 Qd3
2Q2R2/1pn1K1b1/1b6/k2B1qN1/4bbr1/BrR2P1B/N1n1nbR1/1R3qrn b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 d5 h4 Kd7 a4 Kc7 c4 Kb6 f3 e5 h5 g5 c5+ Ka5 h6 e3+ Kd3 e2 h7 e1N+ Ke2 g3 c6 g4 c7 b3 Bh3 d3+ Ke3 d4+ Ke4 b2 Bf1 d2 Rh5 g2 Nc3 b1N Rh3 d3 Qe2 d1Q Bh6 g3 Qe3 d2 Rh2 Ne7 Qg5 Bg7 Bd3 Nc2 Qf4 Rg8 h8R Qf1 Nd1 Qf8 Qg5 Nf5 Kd5 e4 Rh7 e3 Qd8 e2 Nc3 d1R Qd7 e1B Ke6 Bd2 Bc4 Bf4 Na2 Na6 Bd5 Nc3 Rb1 Ne2 Nh3 g1B Rg2 Bf2 Ng5 Rd3 Rh8 Rb3 Rh7 Qc5 Kf7 Ra7 Qd8 Bd7 c8B+ Nc7 Rh8 Bb5 Bce6 Ra8 Qc8 Bd3 Bd7 Be4 Rh7 Bb2 Bf8 Bg7 Rh8 Qb5 Ba3 Ra6 Rh5 Rc6 Rh6 Rc4 Rc6 Rcb4 Rc3 Qc5 Rg1 g2 B7e6 Nfg3 Bh3 Qb5 Ke7 Qd3 Rc1 Nh1 Rb1 Ka6 a5 Qb5 Bde6 Qf5 Bd5 Kb5 a6 Ka5 a7 Qd1 Re1 g1B Rf1 Bb6 Re1 Bgf2 Rg1 Qf1 a8R+ Kb5 Bf7 Bf8+ Kd8 Bd3 Qe6 B4e3 Ne4 Rc4 Rb8 Ka5 Rg6 Bfh6+ Ke7 Bed4 Rf8 Bd2 Rf6 Rg1 Rg6 Bg7 Rg2 Bde3 Ng5 Rg4 Qd7 Be4 Qc8 Bf4 Bd5
1N2bK2/5b1R/b1rN1Nq1/2b3B1/1rP3rr/b1b1QB2/3nRp1k/N2b1nB1 b - - 0 1 illegal: No possible last move
n1r2bb1/b7/2PR1b1n/1Rp1Q1b1/2q3Nn/BrBnnR1n/BR2k2K/4N3 b - - 0 1 illegal: No proof kernel
1nb2K2/5pnB/1b5r/n1BP1R1r/1N4Nk/4NbbN/2RQR2q/1nnbb3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 e4 c5 a4 h5 d4 b3 g4 h3 a5 c3 d5 b4 a6 b2 a7 c4 Rh2 c2 Be3 c1B Ra2 c3 Qe2 c2 Qe1 b3 Re2 h4 Bb6 h2 Bg2 h1B Qc3 h3 Be3 h2 Rd2 Bd6+ Kd4 Qc7 e5 Rh6 e6 Kh4 g5 f3 g6 f2 e7 f1N e8N Ne7 g7 Nec6+ Ke4 Na5 g8R Bg3 Bc5 Ne3 Na3 b1B Re2 b2 Rg5 Nf5 Qd2 Ng7 Nh3 Be1 Kd4 Qd6 Bf1 Bf3 Nc4 h1N Ne3 Qh2 Nf6 Nf2 Nfg4 Nd3 Rf5 Bg3 Ra4 Ba2 Rc4 b1N Bg2 Ba3 Bh1 c1B Rc2 Bb3 Bg2 Nf4 Ke5 Bb4 Bh1 Rh5 Kf6 Nd3 Ke7 Bca3 Bg2 Nc1 Kf8 Bb2 Bh1 Bf6 Bg2 Bd8 Bh1 Bb6 Bg2 Na6 Bf1 Rb8 a8N Rb7 Nc7 Nb8 Na6 Re7 Nc7 Re6 Na6 Bc3 Nb4 Reh6 Qd1 Bce1 Qd2 Bh1 Bg2 Ba4 Be4 Bf3 Rf6 Bb3 Bh7 Ba4 Rf5 Bb3 Ra2 Bd1 Rc2
2N1nk1r/4r3/6qR/b2Pr1Bq/2bn2p1/1Q1Bb2B/1Br1NR1K/q1N1q1n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 c5 Kg2 b5 h4 g5 a4 f5 d4 f3+ Kg3 c3 e4 b3 d5 b4 e5 f4+ Kh2 c2 h5 b2 a5 b3 h6 c4 e6 c3 a6 f2 h7 g3+ Kg2 g4 a7 Qh4 e7 Nc6 Nd2 b1Q Ra5 b2 Rh2 f3+ Kh1 Nf6 Nc4 Qh5 Bd3 f1R Ra4 f2 Ra2 Ba6 Be4 Nd4 Qd3 Re1 Qf3 f1Q Rh3 g2+ Kh2 Qa1 Ne5 b1Q Nd3 Bc4 Ne2 g1N Bg5 c1B Rc2 Rb8 a8N Rb7 Nb6 Be3 Nc8 Kf7 Qg3 Ne8 Ndc1 Qf5 Bg2 Qfg6 Rb2 c2 Qb8 Rc7 Qb3 Bh6 Ra2 Bd2 Rh4 Ba5 Bh3 Ra7 Nc3 Re5 N3e2 Ng7 e8B+ Kf8 Bd7 Ne8 Bf5 Rf7 Bd3 Rfe7 Bf6 Be3 Bg5 Qf7 Rb2 Qhg6 Rh6 Qh5 Na2 c1R Rd2 Rc2 Nac1 Rg8 h8B Qfg6 Na2 Qe1 Nac1 Re4 Be5 Rh8 Bef6 Nc6 Bb2 Nd4 Nc3 R4e5 Rf2+ Qf6 N3e2 Qf5 Bf4 Qfg6 Bg5+
1b2Rn1K/bB6/1N1R1PN1/2n2p1N/1rrr4/kqBqB1r1/b2q1N2/4n1Qq b - - 0 1 illegal: No proof kernel
n3N1n1/4rp1N/R1NNRqB1/5nb1/1q1Bb2q/2nP1r2/3br3/1Qkr1RK1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 g4 Ke6 e4 Ke5 a4 Kd4 g5 c5 e5 h5 a5 b5 a6 h3 d3 c3 e6 c4 e7 h2 e8N h4 a7 c2 g6 h3 g7 b3 Bg2 c3 Qe2 b4 Nc7 f3 Bd2 c1B Ra6 b2 Na3 b1N Qe7 c2 Be1 b3 Nc4 b2 Kf1 f2 Rh6 Na6 Be4 Bf5 Bd5 Be4 Ne5 Ke3 Nd7 Nc3 Ne2 b1Q Nb6 Bd2 Qa3 c1R Qe7 Qb4 Qh4 Rd1 Re6 Be7 Nd4 Bg5 Ne8 Nc7 Nc8 Qf6 Rg1 h1N Ncd6 h2 Nc6 Rd8 a8R Rd7 Ra1 Na8 Ra6 Re7 Qg4 Rh3 Qh4 Rf3 Kg2 f1R Bf2+ Ke2 Bd4 Rfe1 Rf1 Ng3 Qg4 Nh6 g8N Ngf5 Qg3 Ra1 Qf2+ Kd1 Qg1 Kc1 Qh1 Rd1 Qg1 Ra2 Kh1 Qg7 Ngf6 Ng8 Nh7 Qf6 Bb3 Re1 Bd1 Rb2 Be2 Rd1 Kg2 Rg3+ Kf2 h1Q Bh5 Qh4 Bg6 Rf3+ Kg2 Bh6 Qh1 Bdg5+ Kg1 Re2 Qh2 Bd2 Qe5 Bhg5 Qb5 Qc4 Qb3 Qb4 Qb1+
1KBR4/P1nB3q/Q2N1nb1/3r1NBR/1n1b4/qq1B1q1b/rp2r1n1/2R1k3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 Kg3 a4 Kf2 e4 h5 g4 b5 c5 f5 c6 b3 a5 h3 e5 b2 a6 h4 e6 h2 c7 f3 g5 f4 e7 h3 Kd6 d3 g6 b4 g7 b3 Nd2 b1B Qc2 b2 Ra5 Nc6 Qd1 Nf6 g8R Bg7 e8B Nb4 Bg6 Qf8+ Ke5 d5 Qc2 d4 Bf7 Ke1 Qb3 f2 Qc4 f3 Be2 f1N Rb5 f2 Bg6 Ne3 Rc5 f1N Bf5 Ng2 Bh7 Nfe3 Qc2 Ned5 Nf1 d2 Bb5 d1R Qc4 d3 Ng3 d2 Bd7 Bg6 Nf5 Ra7 Rc6 Qc5 Rd8 Re8+ Re6 Qe3+ Kd6 Re7 Re4 Bh8 Rg4 Qa3 Rg5 Re2 Rh5 Bg7 Bb5 Bd7 c8B Nc7 Qc6 Nfd5 Bd3 Bd4 Qc4 Nf6 Nf3+ Kf2 Rg1 h1Q Ng5 h2 Nf7 Be6 Re1 Qf1 Qa2 h1Q Bb5 Qhh3 Bbd7 Qhf3 Qc4 Qh1 Rg1 Rde1 Qa2 d1Q Bg5 Qdb3 Qa1 Rb1 Rc1 Ra8 Qa2 Ra1 a7 Qh4 Qb1 Ra2 Qd3 Rb8 Qa6 Rb5 Ne3 Bh3 Nf5 Nbd5+ Kc6 Ra5 N7d6 Qhe4 Rc3 Ke1 Rc5 Nb4+ Kb6 Nfd5+ Kb7 Nf6+ Kb8 Qe7 Rc6 Rd5 Rc1+ Qd1 Ne8 Bf7 Ned6 Be8 Bg6 Qh7 Ng7 Bf7 Bd3 Bg6 Rc6 Qc2 Ngf5 Qcb3 Rc1+
knRN1q2/Pq1B1Rb1/2R3Kb/p7/Nbb2Q2/rr4B1/1nr1B2R/q1n4n b - - 0 1 illegal: No proof kernel
1nnbQNB1/2BN1R2/1P2bn2/Bn3r1n/p6r/2bNq3/3n3r/R2K1kbB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 b4 Ke7 c4 Kf6 e4 Kg5 e5 Kh4 h3 Kg3 c5 g5 c6 f5 b5 a5 c7 d5 b6 d3 h4 d4 e6 f3 h5 f4 h6 a3 h7 a2 e7 a4 e8N f2+ Kd2 f3 Qe2 Ra5 Bh3 f1N+ Kd1 f2 Qe6 d2 Qf7 Rf5 Rh2 Ne7 Bb2 Be6 Qh5 Nc8 Bg2 Qe7 Ke2 d1N Nf3 Nc3+ Kd3 Ne4 Kc2 d3+ Kd1 d2 Ng1 Nf6 Ke2 d1N Bc6 Nd2 Bh1 f1N Rf2 Nc3+ Ke1 Bh6 Nf3 Nb5 Na3 Qc5 Nc2 Qe3+ Kd1 Bg7 Rb1 a1B Nfe1 Bh6 Ba3 Bc3 Nd3 Bf8 Qg6 Be7 Ra1 Bd8 Bb4 Kh3 Bd6 g3 Nd4 g2 Bb4 g1R Ba5 g4 Rf4 Ng8 Nf6 g3 Nd7 g2 Qe8 Nf6 Rf2 Ng3+ Rf1 Bd5 Ne6 Ngh5 Nef8 Ba2 N7e5 Be6 Ned7 Rg8 h8B Rg4 Bg7 Rh4 Bh6 Kh2 Bf4+ Kh3 Re1 Rf1 Be5 R1f4 Rf1 g1B Bd6 Rf2 Bh2 Ncd6 c8B Rg2 Bb7 Nc8 Bc7 Rh2 Bhd5 Re2 Rf3+ Kg2 Ba8 Rf2 Rf4+ Kf1 Bh1 Bc4 Bad5 Ba2 Bg8 Be6 Rg4 Rg2 Rg7 Rgh2 Rf7
1N2qNKR/2P1b1n1/b1b5/R5Nr/QN1Rbr1k/3nbr2/2n2B1p/b2B2r1 b - - 0 1 illegal: No possible last move
R1b2q2/nr3brN/B1NB3b/n2n4/2n3bn/1q3kB1/Rp1PN1Bn/2Q4K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 Kg2 Ke6 h4 Kd5 a4 Ke4 e3 f5 a5 b5 a6 g5 h5 c5 a7 f3+ Kh2 c3 h6 c2 h7 b3 Nh3 b2 Bc4 f2 Rf1 g3+ Kh1 b4 Ra5 g2+ Kh2 g1N Bb3 g4 Rb5 c4 Rd5 c3 Qe1 f4 Rg5 g3+ Kh1 g2+ Kh2 f3 Rg6 Nf6 Be6 b3 Bc4 Nc6 Ba6 Bh6 Nf4 Qf8 Rg3 Rb8 a8B Rb7 Nd3 Rg8 h8B Nd5 Ne5 Na7 Ng4 Rgg7 Na3 b1B Ne5 Ba2 Bb2 c1N Nc6 c2 Nb1 Nd3 Ba3 c1N Bd6 b2 Rh3 Nb3 Qc1 Ne5 Nc3+ Kf5 e4+ Kg4 Rh5 Na5 Ne2 Nec4 e5 Bb3 Re1 f1B e6 f2 e7 Kf3 e8N Ba2 Nf6 Bb3 Ng3 Be2 Nh7 f1Q Rh4 Qf2 Re4 Qe3 Re8 Ba2 Rd1 Qb3 Rd8 Bd3 Ne2 Bdf5 Re8 Bg4 Bg3 Bb1 Re1 Bg6 Rd8 Bf7 Bd6 Rg5 Bhe5 Rg7 Re8 Nh3 Bf4 g1N Bg3 Nhf4 Kh1 Ng6 Rd8 Ke4 Rd1 Nf3 Rf1 Nh2 Rf3 Qb4 Ra3 Nh4 Ra2 Kf3 Re8 Qb3 Rd8 Bcd7 Rc8 Rb5 Rb8 Bc8 B8b7 Rb4 Ra8 Ne7 Bge5 Kf2 Nd8 Rb5 Bc6 Rb7 Bg2 Nd5 Nc6 Qc2 Bf1 Kf3 Bg3 Qb3 Bg2+
3nnb1n/2N4R/k5r1/1n1r2pR/rq3nqN/n1RB2P1/B1b3R1/2K1QNr1 b - - 0 1 illegal: No extended proof kernel
3b1QbK/B3k1nn/r1r2b2/4p1nP/3Nq1B1/2nn3N/BN2r1R1/2rb2RN b - - 0 1 illegal: No possible last move, all moves rejected
1N1nRKBn/4Bn2/q1R1Nq1p/n1nq3P/kn2NB2/1b3r2/1b1Q3q/4r1N1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 b5 a6 Ba3 axb5 Bb2 bxc4 Bc1 c3 Ke2 Kd7 Ke3 Kc6 Kf4 b5 Ke5 g5 h4 h6 f4 e3 a4 e2 d4 e1N a5 c2 f5 g3 h5 b4 f6 b3 f7 g4 a6 b2 a7 g2 Nc3 b1Q Nce2 Kb5 d5 c5 d6 c4 d7 c3 Ke6 g3 Ra3 Qa1 Nf4+ Nd3 Nd5 Nc6 Ra4 Bg7 Rg4 Qa6 Nf4 Ka4 f8B Ndb4 Kf7 e5 Rh3 e4 Qd4 e3 Bc4 e2 Rhh4 e1N Qf2 Nge7 Qc5 Ng6 Qd6 Nf3 Rh1 Qf6+ Ke8 Ng5 d8N Nf7 Qe7 Be6 Ba3 c1N Qc5 c2 Rh2 Nb3 Qd5 c1N Nfe2 Nba5 Re4 Ncd3 Bc1 Nc5 Bf4 Rg8 Qd7 Ngh8 Qd2 Bd5 Ba2 Bb3 Re6 Rb8 a8N Rc8 Re5 Rc7 Ne6 Ncd8 Rh3 Rd7 Rh4 Rd3 Nac7 Rf3 Rg4 Ne4 Rg6 Nc5 Nh3 g1Q Nhg5 g2 Ne4 Qd4 Ng1 Qa7 Na6 Qd5 Nb8 Qa6 Nh3 Bc2 Bc4 g1Q Ba2 Qh2 Ng1 Qf5 Bc4 Bb3 Ke7 Bf6+ Ke8 Rg7 Be7 Qg5 Kf8 Qgh4 Rf5 Bb2 Re5 Q4f2 Nc7 Qfh4 Rc6 Qf6 Ne6 Rg2 Qe3 Re2 Qd2 Ree3 Nd4 Qde6 Bd6 Re1 Bd5 Qef5 Re8 Ng5+ Bf7 Qd5 Be7 Qg6 Bg8 Ngf7 Ne6 Qgf5 N4g5 Qf6 Ne4
6r1/B2bB1Pb/k1pRbBq1/n4n1N/2nnRb2/q1r1Q3/N4KB1/1n2n1R1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Kc6 a4 Kb6 d4 h5 f5 e5 a5+ Ka6 g5 b5 d5 b3 f6 e3 f7 b2 d6 h3 g6 e4 g7 e2 d7 h4 Nf3 b4 Ra3 h2 Be3 h3 Bd4 b3 Ra4 c3 Qc1 c2 Be3 Bd6 f8B Qg5 d8B Bf4 Nbd2 b1N Bd4 b2 Bdc5 Bd7 Bf6 Na3 Nb3 b1N Nfd2 Nc4 Ra2 Nh6 Kf2 e1N Be5 e3+ Ke2 Qg6 Rg1 h1B Bg2 h2 Bfd6 Rg8 Ba1 Nf5 Ra4 Nc6 Bf6 Nf3 Bde7 Rac8 Ne4 N3d4+ Kf1 e2+ Kf2 e1N Qe3 c1Q Ng3 Qa3 Nc1 Be6 Nh5 Bd7 Ba7 Be6 Bf1 Be4 Na2 h1B Rb4 Bhf3 Bg2 Bg4 Ra4 Kb5 a6 N6a5 Bac5 Bc2 a7 Ka6 a8R+ Kb5 Kf1 Ng3+ Kf2 Ne5 Bg5 Bd7 Ra6 Qf6 Rc4 Bge6 Bh3 Ndf3 Qe2 Bh7 Qd1 Nf5 Bg2 Qg6 Re4 N3d4 Qc1 Qf7 Rc6 Qg6 Bb6 Ka6 Bh4 Rb8 Rd6 c6 Bc5 Nec4 Bhf6 Rb3 Ba7 Rc3 Qe3
1b1k3n/nPRN2q1/1Kpr3r/3NNR2/2b1Q3/1n1N1Br1/1b1r2R1/1bn1B1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 g4 a5 d4 f5 e4 f3 Ke3 a3 b4 f4+ Kd2 a4 Kc3 a2 b5 f2 e5 a3 d5 f3 Kd4 h3 g5 h2 d6 h4 Kc5 h3 b6 c3 g6 c2 b7 Qe7 g7 Kd8 e6 Ra6 Bg2 f1R Kb5 f2 d7 Nh6 g8R Qg7 Bf4 c1N Nf3 Nc6 Bd2 Rg1 Qa4 f1B+ Qc4 Nf7 Bf4 Rh6 Ne1 Nh8 Be4 Rg3 Bd2 Bd3 Rg1 h1R Rf1 h2 Bf3 Rhg1 Nc3 h1R Nd5 Bb1 Qe4 R1h2 Nd3 Re2 Be1 Na7+ Kc4 Rd6 Kc5 Rd2 Rf2 Qg5 Rg2 c6 Rg7 Be7 Kb6 Bf6 Rf7 Be5 Re7 Qg7 Rf7 Bc2 Rb1 a1N Rb5 a2 N5b4 Bb2 Rbf5 Bb1 Re7 Nab3 Ref7 Qf8 Rh7 Qf7 Rg7 Ke7 d8N Ke8 e7 Be6 Rh7 Kd7 e8N Bc4 Nd5 Qe7 Nf7 Qe5 Ng5+ Kd8 Rc7 Qg7 Nef6 Re6 Rf7 Be5 Re7 Bb8 Rc7 a1B Nd7 Bb2 Nf7+ Ke8 Ne7 Rd6 Nfe5 Kd8 Nd5
2QB2K1/R1N2nbN/rqB1r3/2bR2b1/Bk3r1N/1r1qnN2/p2P4/qq5b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 f5 e4 a5 g5 h3 b3 f3 g6 f2 g7 h2 Bg2 f1R Qf3 a3 Bb2 c3 Qe2 f4 Bc1 c2 Qd1 a4 Ne2 f3 Bh3 h4 Ng1 f2 Qf3 a2 Qh5 a3 Bg2 h3 Qg5 Kb4 Qg4 c5 Qf5 c4 Qg5 c3 Nf3 Bc5 Bb2 c1R Qf5 c2 Nh4 Nd7+ Ke6 Nb6+ Kf7 Rh6 e5 Re6 Bc6 Bb7 Nc3 Ra6 Ne2 Nd5 Ng1 Rb1 Ngf3 c1B Bd4 Be7 Bb6 Ne3 Qc2 Qb8 Bd8 Bg5 Ba4 Be4 Qc8 Nh6+ Kf8 Qa7 g8N Qb6 Nf6 Nf7 Nh7 Bb7 Rg1 h1Q Kg8 h2 Rg4+ Be4 Rf4 Bb2 Rf5 Bd4 Bc6 Bc5 Ba4 Rh6 e6 Bd5 e7 Re6 e8B Qg1 Kg7 h1Q Kg8 Ba8 Rd5 Rb2 Rb1 a1B Bec6 a2 Rc1 Rb1 Rc2 Bg7 Rb2 Ka3 b4 Qh3 Rc2 Rb3 b5 Kb4 Rc1 Qf5 Re1 Qb1 Rc1 Qa7 b6 Qd3 b7 Qb6 b8N Qb1 Rd7 Qg3 Rb7 Qe5 Ra7 Qea1 Rc3 Bb7 Rd3 Ba8 Be8 Bd5 Bec6 Be4 Ne1 Bh1 Rd5 Ra5 Nd7 Ra6 Ndf6 Rg1 Rc7 f1Q Ra7 Rg4 Nef3 Rf4 Ne8 Qfd3 Nc7
Kn2N2R/R7/Q1N2B2/qnkR1pq1/3r1r2/2q1B1P1/1bB1qrnR/1b1r2n1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 b5 a4 h5 d4 c5 d5 c3 g3 c2 a5 b3 e3 b2 a6 h3 a7 c4 Bd2 c1Q Qe2 f3 Ra5 c3 Qd1 f2 Qa4 h4 Qa1 h2 Na3 b1R Nc4+ Kc5 d6 h3 d7 c2 Nd6 Nh6 Bc3 Bg7 Bf6 Rb2 Bh4 Ng4 Bg2 f1Q Ra2 b4 Bg5 b3 Qb1 Qa5 d8B Rf8 Qa1 Qe2 Ne8 Bf5+ Kf4 Qcd2 Nf3 c1N Bdf6 Bb1 Nd4 Qdc3 e4 Ne3 Rd1 h1Q e5 h2 Be4 Ng2+ Kf5 Qhe1 e6 h1R Ke5 Q1d2 e7 Qde3 Rd2 Rd1 Rd3 Qe3d2 Be3 Rc2 Bf5 b2 Ke4 Nb3 Nc6+ Nd4 Nc7 Rd8 e8R Rd5 Bh7 Rf5 Rh8 Rf4+ Ke5 Qc1 Ne8 Rcd2 Be4 Rf2 Bf4 Nb5+ Rd4 Rd3 Be3 R3d2 Rh2 Bh8 Bc2 Rd3 Bg7 f5 Bf6 R3d2 Ke6 Bg7 Rd8+ Rd4 Ra3 Ba2+ Ke5 b1N Rd6 Nd2 Rd5+ Kc4 Ke6 Nf3 Ke7 Bb1 Ke6 Na6 Kd7 Nb8+ Kc8 Ng1 Kb7 Q1d2 Beg5 Qf4 Ra2 Qfg4 Be3 Qg5 Ra3 Bf8 Ra2 Ba3 Rh8 Bb2 Rh2 Na6 Ra3 Rd8 a8R Nb8 Ra7 Rdf4 Ka8 Qc7 R3a6 Q7a5 Rah7 Rdd4 Rh8 Rd7 Ra7 Rd1 Re5 R7d2 Rd5 Rdd4 Rd8 Kc5 Rd6 Qc7 Qa6 Q7a5 Rd5+
1K1B4/1RQ2B2/N2Pknn1/b1R1bN2/brb5/6r1/1rqB1qpr/nB2n2N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 c5 a4 f5 e4 b5 d4 g5 e5 b3 a5 b4 h5 f3 Ke3 f4+ Ke4 g3 e6 c3 Ke5 c4 a6 b2 d5 f2 h6 f3 h7 g2 a7 g4 Qd4 g3 Bg5+ Nf6 Qd1 c2 Bc1 c3 Bd2 c1N Ra4 c2 Ra3 b3 Nh3 g1N Ra1 g2 Nf4 Nbd7+ Kd4 Ne5 Kc5 Bd7 Nd3 Ng6 Rh5 Ba4 Na3 b1R Nb5 b2 Kc6 Bg7 Kb7 Nb3 Nd4 c1B Qc2 Rc8 a8N Rc3 Ka7 Qc8 Nc7 Kd6 Be2 f1Q e7 f2 e8B Nf3 Na6 Ne1 Bf3 Qg1 Be4 f1B Nf2 Rg3 Nh1 Qf2 Qc3 Qc6 Kb8 Bc4 Qa5 Qc5 Nf5+ Ke5 d6 Ke6 Ra3 Na1 Rb3 Qc6 Rb7 Qcc5 Be3 Bd2 Qc7 Ba5 Bc1 Qc2 Bd2 Qf2 Bd3 Ng4 Rg5 Be5 Be4 Nf6 Bd3 Rg8 h8B Rg7 Be4 Rh7 Bg7 Rh5 Bf8 Rh2 Be7 Rc1 Bd8 b1R Rh5 Rb4 Bd3 Qc3 Bb1 Rc2 Rh4 Qb3 Rd4 Qd3 Rd5 Rcb2 Rc5 Qc2 Bf7+
1rnN3B/4k2p/7B/bQbq1R1K/BnN1rr1N/P2NR3/1q6/b2n1bnr b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 d5 g4 e5 c4 b5 f4 e3 Kf3 e2 c5 e1B f5 d3 c6 d4 g5 b3 Kg4 b2 c7 d2 a3 d3 g6 b4 g7 e4 Nc3 b1R Rh3 b3 Bb2 e3 Qf3 d1N Nd5 e2 Nb6 d2 Nd7 Ba6 c8N Nc3 f6 d1N Rh2 h3 Ndb6 Ne7 g8N Nbc6 Rf2 h2 Nc4 h1R Qd3 Nb4 Na7 Qd5 Rf5 Rb8 Nh6 Nc8 f7+ Ke7 Nh3 Bf2 Kg5 e1B Nf4 Bc5 Bh3 Bg7 Kh5 Ne2 f8B+ Ke8 Be5 b2 Nc6 Ng1 Nd8 Bf6 Bg7 Rf8 Qe2 Bb5 Nd3 Ke7 Bf4+ Be5 Bh8 Rc1 Ra2 b1Q Qf1 Qb3 Re2 Qb2 Bd2 Re8 Re3 Rc2 Bc1 Rf2 Qe2 Qc3 Qb2 Rf4 Qb3 Qb2 Qa4 Ba6 Qb5 Bc3 Qb7+ Qd7 Rf8 Nc6 Nd2 Qb3 Re4 Rf6 Nb4 Bf1 Nd3 Ba5 Nc4 Nb4 Qb6 Qe6 Nf5+ Kd7 Bh6 Qd5 Re3 Ba1 Qa6 Qb2 Qb6 Qe6 Nh4 Rf4 Bg2 Qd6 Rf5 Re6 Bf3 Ke7 Bc6 Ree4 Ba4 Qd5 Qb5
1rQn2NB/1rbnP1r1/1q1Nq3/3Nr1n1/1b1Bb1R1/1Rpnb3/4K3/1B1N2k1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 e4 Kf6 d4 Kg5 h3 Kh4 e5 Kg3 e6 f5 h4 c5 h5 b5 d5 g5 d6 b3 d7 b2 a5 b4 a6 c3 h6 c4 a7 b3 h7 c2 Bd2 c1N Ra5 f3 Bd3 Kg2 Rc5 g3 Be3 c3 Be2 f4 Nd2 b1N Re5 g4 Rh3 b2 Qc2 f2+ Kd1 f3 Bh6 Ne7 Rc5 Nd3 Qb3 f1Q+ Kc2 f2 Qb7+ Nec6 Qb6 Qe1 Rh4 f1R Ndf3 Rg8 h8B Rg7 Nh2 Nd2 Qb7 b1R Be3 Nf3 Rb5 Ng5 Bd4 Bb4 e7 Qb6 d8N Bf5 Qc8 Nd7 Nh3 Be4 Nf2 Kg1 Nb7 g2 Nd6 g3 Rg4 Rb8 a8N Nd8 Nd1+ Rf2 Nc7 Rb7 Ne3 Rf5 Ncd5 Re5 Bf1 Kh1 Be2 g1B Nd1 g2 Bf1 Be3 Be2 Ba3 Rb3 g1B Bf1 Bgf2 Be2 Bg3 Bf1 N3c5+ Bd3 Kg1 Ne8 Re6 Ndf6 Rb8 Rb2 Bf2 Rf4 Bg2 Re4 Qb5 Nhg4 Bc7 Nd6 Bf3 Rf4 Qe4 Ng8 Be3 Rb4 Qe5 N4f6 Be4 Nd5 Qf5 Rf2 Re5 Rf4 Qe6 Rg4+ Bg2 Bg6 Qa6 Ra4 R1b7 Rb4 Qb6 Rb3 Bb4 Be4 Na6 Kd3 Nac5+ Ke2 Nh3 Nf7 Ng5 Bb1 Nd3 Rf4 Bh1 Nd6 Be4 Rg4+
1b6/1qP2pNN/b1k2B1K/1n1n2N1/rq3R2/r3Nnn1/2Bqq1B1/2bb2QR b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 h4 Kd7 a4 b5 c4 g5 e4 f3 Kg3 b3 a5 f2 c5 b4 h5 d3 e5 b2 a6 b3 h6 d4 e6+ Kc6 e7 d2 e8N d3 a7 Ba6 h7 Nf6 Qc2 d1B Nd6 d2 Nb7 Bh6 Bc4 Nd5 Nc3 b1Q Ba3 b2 Nd6 Qe8 Qd3 Qe2 Nh3 Re8 h8N Re4 Ba2 Ra4 Qd4 Qbe4 Qe3 b1Q Bb3 Qb4 Bc2 Qb7 Bc1 Q1b4 Bb2 Ra3 Nf5 Ra4 Kg2 g3 Ng6 g4 Ng7 f1N+ Qf2 Ra3 Nf8 Be3 Ng5 Bf4 Kg1 g2 Nfh7 Ng3 Kh2 g1B+ Kg2 Bh2 Rb1 Nc7 Nd5 Nd7 Bf6 Nb6 Ne3 Nbd5 Ra1 Nb5 Rc1 Re8 a8B Re4 Rb1 Nh5 Rc1 g3 Kh3 g2 Kh4 Ng3 Rf1 Rd4 Qg1 Bb8+ Rf4 Rc4 Qh1 g1N Ra1 Nf3+ Kg4 Nf5 Kh5 Ng3+ Kh6 Bg1 Rc1 Bf2 Qg1 Re4 Ng4 Bd4 Ne3 Bb2 Rb1 Bc1 Ra1 Qb2 Rb1 Rea4 Ra1 Qb4 Rb1 Kc7 c6 Kb6 c7 Kc6 Bg6 Bb3 Be4 d1Q Bc2 Qdd2 Qf2 Bb2 Rh1 Bc1 Qg1 Kd6 Bg6 Bd1 Bc2 Kc6 Bf5 Ndc3 Nf8 Nh2 Be4+ Kc5 Ngf5 Qbd5 Bg2 Nf3 Ng7 Kd6 Bc6 Kc5 Bd7 Qb7 Nfh7 Nd5 Bf5 Kc6 Bc2
3b4/rPRnN1q1/7r/3KN1nk/r1BN3b/2bN2nb/1Q1rBp2/nqR3B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 a5 e4 f5 g4 Kf7 b4 Kg6 c5 f3 e5 h3 g5 h4 e6 h2 c6 f2 e7 a3 e8N a2 c7 h3 b5 a4 b6 a3 b7 f4 Bb2 f3 Nd6 Ra4 Nb5 Qd7 N5c3 Nf6 Nge2 Kh5 g6 Ne4 g7 Ng5 g8B Qg7 Rg1 h1N Bc1 h2 Rg3 Rh6 Bg2 f1Q Rg4 f2 Qd2 Ng3 Bh1 Be7 Bg2 h1R Bh7 Nd7 Nd1 Bd8 Bf3 Rg1 Kc2 d3+ Kb3 d4 Qb2 d2 Bg8 d3 Nd4 Ra7 Kc4 Rh1 Qb5 Rh4 Nb2 d1R Bf4 d2+ Nd3 Qg1 Be2 Qh1 Nc3 Qe4 Rb1 a1B Na2 Bc3 Nac1 a2 Ne5 a1B Ncd3 Bab2 Qb6 Ba3 Qb2 Bae7 Rc1 Bf6 Ne1 Qb1 Kd5 Bfe7 N1d3 Bf6 Be3 Bfe7 Rf4+ Rg4 Rf7 Bf6 Ndf3 Rga4 Nd4+ Nf3 Kd6 Nb8 Bh7 Nh1 Nc4 Bh3 c8N Bg5+ Kc5 Bh4 Rc7 Nd7+ Kd5 Bg4 Bf4 Ng5 Bh2 Ng3 Nb4 Ne5 Bhd3 Nd7 Bf1 Bh3 Ne5 Re1 Nd6 d1N Bg1 Re2 Bc4 Rd2 Nbd3 Ne3+ Kc6 Ne6 Nc8 Nc2 Ne7 Na1 Kd5 Ng5 Be2+
2rN2BN/K5R1/4b2B/1q4R1/n1bBQ1bp/bNnqNb1p/P3r2n/k1q5 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Kf6 f4 b5 c4 e5 c5 h5 f5 d5 c6 d3+ Ke3 h3 c7 b3 Qf3 h4 Ne2 b4 Qg2 d2 Qh2 d1B Ng1 d4+ Kd2 e3+ Kd3 e4+ Kc4 b2 Kb5 e2 Kb6 e1N Qe2 Ke5 f6 d3 g5 Kd4 g6 e3 f7 d2 g7 b3 Rh2 Be6 Qb5 e2 Qa5 Nf6 g8N Na6 Ne7 Nc5 Rg2 Rc8 Rg7 Nfe4 Ka7 Nc3 Ng6 Nf3 Na3 e1Q Nc4 b1Q Qa4 Nh2 Bb2 Bdg4 Ne3+ Bc4 Bg2 d1B Bd5 Bdf3 Ne2+ Kd3 Be6 Qec1 Nd4 Rh6 Qc6 N5a4 Nh8 Ba3 f8B Rg6 Bf7 Re6 Bg8 Qg5 Qa8 Qb5 Qe4+ Kd2 Rg5 Qd3 Bh6 Ree8 Rb1 Bge6 Ba1 b2 Rg7 Qe1 Rc1 b1B Bb2 Qh1 Rcg1 Bc2 R1g5 Bcd1 Ba1 Kc1 Nb3+ Kb1 Bb2 Bfg4 Ba1 Bdf3 Bb2 Rb8 c8N Qc1 Nd6 Rbc8 Ba1 Nd1 Be5 Ndc3 Nb7 Kb2 Nd8 Kb1 Nd2+ Ka1 Nb3+ Kb2 Qf5 Bd7 Nd5 Kb1 Bf6 Re2 Bd4 Be6 Qe4 Kb2 Ne3 Kb1 Nc5 Ka1 Nb3+
3Kb2B/3n2rB/1B4nR/qPQn1p2/n2r1B2/Nn5b/1Nrpq2b/1N1R3k b - - 0 1 illegal: No possible last move
2NQ2NK/Bbb1b1N1/1qn3B1/P1b2p1p/1q1Nr2n/2r5/1Rb1R1rB/2k4n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 Kd4 e4 f5 a4 b5 g4 c5 g5 b3 g6 f3 g7 b4 e5 b2 a5 b3 d3 c3 e6 h3 e7 h2 e8N c2 Qd2 f2 Nc7 c4 Qe1 c3 Bh3 f1R Bg4 Rf4 Na3 b1B Nc4 b2 Ra4 Ne7 Kh6 Rg8 Bh5 Bb7 Bg6 Re4 Rb4 Nbc6 Bf4 c1B Qh4 c2 Nf3+ Kc3 d4 Be3 d5 c1B d6 Kc2 d7 Rc8 Ne8 Qb6 d8B Bc5 Re1 h1N Ncd6 B1e3 Re2+ Kc1 Qg5 Bc2 Bh2 b1Q Nd4 Bf4 Rb2 Rc7 Nc8 Qb4 Bf7 Ng6 Bf6 Nh4 Bg6 Bfe7 Be5 Rd7 Bb8 Rc7 Ba7 Qb6 Ra2 Q1b4 Rb2 Rf8 g8N Rf6 Kg7 h5 Bf7 Rg6+ Kh8 Rg7 Qf6 Rg2 Ng7 Bg3 Bg6 Bf4 Nd6 Rc8 Nde8 Bc7 Nd6 Rd8 Nc8 Rd6 Nde6 Rd3 Nd4 Rde3 Qd6 Rc3 Qd8
4N3/5qq1/b1Rpbq2/1Bp5/1rBnQBnq/Bk1rq1P1/2N2n1N/K3b1R1 b - - 0 1 illegal: No possible last move
1B4Rq/kn6/1prr1q2/N2B2Np/K1bqB2R/bP4bN/n1q1q3/B2Q2r1 b - - 0 1 legal: proof: h4 c5 e4 g5 d4 gxh4 e5 cxd4 e6 a5 b3 a4 Be3 a3 Qc1 fxe6 Bd2 e5 Qb2 axb2 Bc1 e4 Kd2 e5 g4 d5 f4 Kd7 c4 Kc7 Kc2 Kb6 a4 d3+ Kc3 d4+ Kd2 h3 a5+ Ka7 c5 h2 g5 b6 a6 Nh6 g6 Nf7 g7 Rg8 f5 Nd6 c6 Be6 c7 Qf6 c8Q Nb7 Qc3 Nc6 Qc2 Ba3 Qd1 Rac8 Nh3 Bc4 Bg2 Nb4 Nc3 b1Q Bb2 Rc6 Bf3 Rd8 g8N Rdd6 Ne7 Na2 Rg1 h1R Rg8 h5 Bg2 Qh8 f6 Rg1 f7 Qf6 f8B Qh8 Qf3 Qf1 Qd1 Qff6 Bg7 Nb4 Kc1 e3 Ne4 e2 Neg5 e1B Be4 d2+ Kb1 d3 Bc1 Bb2 Ra4 Ba3 Bb2 Bh4 Ba1 Na2 Bd5 e4 Rb4 Qc3 Be5 e3 Be4 e2 Bf4 Rd5 Bc7 Rdd6 Ra4 Bg3 Bd5 Bb5 Rh4 e1Q Be4 Qcf6 Bd5 Bc4 Be4 Bb4 Bd5 Nc3+ Kb2 Qe2 Be4 Ba5 Ka3 Na2 Ka4 Bb4 Ng6 Ba3 Ne5 Bf7 Nc4 Bd5 Qf1 d1Q Na5 Qdc2 Qd1 d2 Rg7 Ka8 a7 Bc4 Rg8+ Nd8 Qf1 d1Q Qe1 Qdd4 Qd1 Bd5+ Nc4 Kb7 a8B+ Ka7 Bb7 Qdf2 Na5 Bc4 Ba8 Q2d4 Bb7 Rc5 Bbc6 Nb7 Bcd5 Rcc6 Bb8+
1b3Bk1/1q2rpr1/p1nrN1R1/3N1PbK/4n1r1/2q1BQ2/3RbNqR/3r1R2 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 h5 bxa4 e3 e5 h6 e4 Bd3 exd3 Kd2 gxh6 Ke1 h5 Ra3 h4 Ra2 Bc5 Ra1 Bf8 c4 h5 g4 d5 f4 a3 Kf2 h3 Kg3 h4+ Kf3 h2 b4 d2 f5 d3 g5 h3 Kg4 d4 g6 a2 b5 Bd6 g7 Qc7 c5 Rh7 b6 Ba6 b7 Nf6+ Kg5 Ne4+ Kg4 Nc6 Qb3 d1R b8B d2 Nc3 d3 Nd5 Re1 Qa3 d1R g8R+ Bf8 Rg6 d2 Qd3 Bh6 Kh5 Kf8 Qe2 Bd3 Qf3 a6 Ba3 Qc8 Ba7 Be2 Rb1 a1B Rc1 Nf2 e4 Rg7 e5 Ne4 e6 Kg8 e7 Bg5 e8N Be5 Nec7 Rb8 Rb1 Rb4 Ne6 Bb8 Ra1 Qc7 Rc1 Qe5 Rb1 Qc3 Bb6 Ne7 c6 Rc4 c7 Nc6 Bf8 Rd4 Ndf4 Rd6 c8R Rc1 Rc7 d1R Rd7 R1d4 Qg4 Rcd1 Nd5 Ra4 Be3 Rb4 Nf3 Rbd4 Rf1 h1Q Nd2 h2 Qf3 Qg1 Rf2 h1Q+ Rh2 Qgg2 Rc1 Nc5 Rd8 Rf4 Ne4 Rg4 Nf2 Ne4 Ndf4 Rd7 Rb1 R1d6 Nd5 Re7 Rb2 Ra1 Rd2 Qb1 Rd1 Qb7 Rf1 Rd1 Rd7 Qa8 Rb7 Qa7 Rb2 Qb7 Rd2
rN1N2B1/1bq1P1R1/1nB1N2K/2p1b3/n1qpR1r1/1k1q4/q1b1q3/QnB4N b - - 0 1 illegal: No proof kernel
3n3b/Rn1pqb2/Nb2kr2/N1R2Qr1/r7/3Rq3/PK2npBn/1n1N2BN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 h4 f5 e4 g5 c4 b5 Kc2 b3+ Kb2 g3 e5 d3 c5 d2 e6 g2 h5 b4 c6 f3 c7 f4 h6 g4 h7 g3 Nh3 g1Q Qe1 d1R Ng5 f2 Be2 f1N Nc3 g2 Nh3 f3 Nf2 Rd6 Ba6 Nf6 Qe2 Ne4 Be3 Nc6 Rh3 Nc5 Nh1 Bb7 c8R Bg7 Qd2 Rg8 h8N Nh2 Be2 Ra4 Bh6 Qe3 Ra8 g1B Nf7 Bh8 Qd3 Rg5 Ne5 Ba6 Nc4 Nb7 Na5 Bc4 Rg3 Qf8 Ra7 Ncd8 Rh3 Kf6 e7 Ke6 e8N Qe7 Bf1 Rb6 Kb1 b2 Nd1 Bd5 Kc2 b1N Bg2 Nc3 Kb2 b3 Rc1 Ne2+ Bg7 Ra6 Rc5 Rb6 Bd4 Ra6 Kb1 b2 Kc2 b1N Nc7+ Kf7 Rg3 Rf6 Na6 Ke6 Qb5 Be4+ Qd3 Bg6 Kb2 Bf7 Rh3 Bf2 Qb5 Bg3 Qd3 Bc7 Rg3 Bb6 Qb5 Qe4 Bg1 f2 Rd3 Qe3 Qc4+ Rd5 Qf4 Rg5 Qf5+
2q5/n2pR2q/RNbB4/1Bn1n1k1/R1r2bpB/6Q1/1Pr2N1b/b1RKb1r1 b - - 0 1 illegal: No possible last move
2b1N2n/b1RpnN2/N2Bnrr1/2PpQ2N/1qb2R1b/7K/2Bb4/1Rkq2r1 b - - 0 1 legal: proof: f4 a5 g4 e5 d4 exf4 b4 axb4 d5 h5 d6 hxg4 Na3 cxd6 Nb1 d5 Kf2 Ke7 Kg2 Kf6 h4 Kf5 a4 Ke4 c4 g5 a5 f5 e3 b5 a6 b3 a7 f3+ Kg3 b4 h5 b2 h6 f2 h7 f4+ Kg2 f3+ Kg3 b3 Qe2 Ne7 Rh5 Bh6 Na3 b1N Qa2 b2 Rh2 Rf8 h8R Rf6 Nc2 Ng6 Qa5 Nd2 Re8+ Qe7 Rh8 b1R Rh5 Nb3 Bd2 Nd4 Rh4 Qb4 Na3 Ne6 Nh3 Nc6 Qc7 Nce7 Nf4 Rc1 Re8 Nh8 Nh5 Rd1 Bg2 Kd3 e4 f1B e5 f2 Nb5 Kc2 Rb1 Be2 Rg8 Rg1 Bf4 f1Q Nd6 Qd1 Nf7 Bf1 Kh2 g3+ Kh3 Be2 Bf3 g2 Be4+ Bd3 Bh2 Rb8 a8N Rb6 Rf4 g4+ Kh4 g3 Kh3 Kd2 Rgg4 Bf1 Bc2 Bg5 Qb8 Bh4 Nc7 Bd3 Na6 Be2 Rb2 Kc1 Rg6 Rf1 Rgg4 g1B Qd6 g2 Rb1+ Kd2 Rg3 Be3 Qc7 g1B c5 Bc4 Rg6 Rc6 Bg3 Bh2 Qb8 Rg1 Qd6 Nd4 e6 Rb6 Qe5 Rc6 Rb2 Kc1 Rh6 Bd2 Rb3 Nef5 e7 Ne6 e8N Ne7 Rb2 Rg6 Rb3 Nd8 Rb2 Rcf6 Rb3 Ne6 Rb2 Qc3 Rb7 Qa5 Rc7 Qb4 Qd4 Rf5 Rf1 Rh1 Nhg7 Bhg5 Nfd6 Qe1 Rc6 Rff6 Rh4 Rg1 Re4 Bh4 Nh5 Qb3 Qe3 Qb4 Nf7 Kb2 Bc7 Be5 Ref4 Qe2 Rc1 Qd1 Bb8 Bc7 Qe2 Bd8 Bd6 Bb6 Rc7 Ba7 Ra1 Bde1 Qe5+ Bc3 Ra2+ Kc1 Rb2 Bd2 Rb1+
k3B3/2pNn2R/b1QBPB1B/3qn2R/5nNK/4Rqn1/b2b2p1/rqr2n2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 e4 Kc6 d4 g5 h4 b5 a4 Kb7 d5 f5 e5 f3 Kg3 b3 d6 b2 a5 f2 h5 c3 d7 c2 e6 b4 h6 f4+ Kg2 g3 Kh3 f3 h7 g2 Nc3 b1B Bd2 c1Q Ra3 b3 Qe2 b2 Be1 Qe3 Nd1 Ba2 Qc4 b1Q Bb4 Ne7 Bd6 g4+ Kh4 g3 a6+ Ka7 Rc3 Bh6 Qc6 Qe2 Rh2 Bd2 Re3 Qed3 Be2 f1N Nf2 Rg8 Ng4 f2 Nf3 g1N h8B Nh3 Bhe5 Nf4 Bg7 g2 Bd1 Ng3 Bh6 f1N Ba4 Rh8 Nfe5 Qd5 Rh3 Qf8 d8B Nd7 Rh1 Qff5 Rh2 Qfe4 Rh3 Qf3 Rh2 Nb6 Nd7 Nc4 Rh3 Ne5 Rh2 Ng8 Bf6 Ne7 Rh1 Bb7 Rh3 Rag8 Rh2 Ka8 a7 Rh7 Bc2 Rgh8 Bg6 Rb8 Be8 Rh8 Qa4 Ba6 Rh1 Rb5 Qc2 Ra5 Qc6+ Qb7 Rh3 Rc5 Rh2 Rc1 Rb3 Ra1 Rc3 Qb3 Re3 Ned3 Kg5 Rg8+ Kh4 Bc4 Bb4 Rg5 Bd6 Rc5 Bf8 Bb5 Rh3 Rcc1 Kg5 Bc4 Rh7 Qb2 Qb5 Qb1 Bh6 Qbc6 Qd5 Kb7 a8R Bb5 Ra5 Ba6 Kh4 Ka8 Qc4 Qcb7 Rh5 Qbd5 Qc3 Ne5 Qc6+
2n1R3/1P1pqbq1/2N2n2/1n2Q1r1/Bn1N1b1N/3r3k/1Bpq2Br/N2R1nK1 b - - 0 1 illegal: No possible last move, all moves rejected
bNnK2Rn/1pr1n3/2Q1NR2/nB2q3/3b1pqP/4bR2/1B6/nk1B1Bqr b - - 0 1 illegal: Other
n1nR2br/p5Nk/qr1bP3/r5RQ/1r1q1b1K/R3pR2/2N2N2/1Bn2rB1 b - - 0 1 illegal: No proof kernel
3b1B1b/rR2Qr2/2r3R1/2NN1nk1/Pr5R/5Bnr/1r1pR1p1/1q1brBK1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kf6 h4 b5 c4 g5 a4 d5 h5 d3 h6 b3 h7 d2 c5 d4 c6 b2 c7 b4 Ne2 b3 Ra3 d3 Nec3 g3+ Kg2 g4 e5+ Kg5 e6 f5 e7 f3+ Kg1 f2+ Kg2 f4 e8R Nd7 Qc2 d1R Rh4 d2 Ba6 f1R Nd5 Be7 Rh6 Ra7 Rd6 Nh6 Nb6 Nf6 Bc4 Nf5 Qe4 Rfe1 Qa8 Nh5 Rh6 Qd3 Be6 Bd8 Nc3 b1R Qd5 Rb2 Qb7 Qb1 Bc4 Be6 Bf1 f3+ Kg1 g2 c8B f2+ Kh2 Nhg3 Rf6 g1B+ Kg2 Bf7 Nd7 Bh5 Nd5 Re6 Ra2 Rc6 Nc5 Re1 Qe7 Bh2 Bb7 Bg1 Be2 f1R Bea6 Rf3 Bf1 Bd4 Ra1 Rf8 h8R Rf7 Rh7 Ne2 Ra3 g3 Rhh8 Bg4 Rh4 Bh5 Kh1 g2+ Kh2 Re3 Ra1 Neg3 Kg1 Bd1 Ra2 Rc2 Ba3 b2 Bb4 Rc4 Ra3 Bc3 Rb3 Rd4 Ba3 Red3 Rb6 Rb4 Ba8 Rf3 Rb7 Ree4 Qe5 Re6 Nd3 Rbc4 Rc7 Nh5 Ne3 Rh3 Rh6 Ng3 Bf8 Rb4 Nc5 Qa2 Bd5 b1R Rb7 R1b2 Qd6 Bh8 Rf6 R4e5 Bf3 Qa1 Nd5 Re1 Qc7 Reb6 Re2 Qb1 Qe7 Rc6 Rg6+
3b1N2/BB1r1R1K/bN2r1R1/R7/pq6/2n2np1/1PNkn1Q1/r1bRnqq1 b - - 0 1 illegal: No possible last move
1nQ1bnrb/2r3kq/1R4N1/r1b3PR/r2B2np/2KN2q1/p2RBR2/B2q4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 b4 f5 c4 Kf7 g4 d5 e4 a5 b5 f3 g5 f4 e5 f2 b6 d3 b7 a3 c5 f3 e6+ Kg7 e7 a2 e8R a4 c6 a3 c7 d4 Re4 h3 Re8 h2 Qe2 Qd6 Bb2 Nf6 Bc1 Nh7 Re4 Rg8 Nh3 Ra4 Nc3 Bd7 c8R Qg3 Rc4 Be8 Nb5 Bc5 Nc7 Nf8 Rb1 a1B Rb6 a2 Rf4 Ra5 Qe6 h4 Be2 f1R Qc8 f2 Bb2 Rc1 Na6 f1Q Rf2 Ra4 Rg1 h1N Nf4 Qfg2 Ng6 Qe4 Rd1 Qe7 Rf4 Nf2 Nb4 Ng4 Rf3 Rc3 Rf2 Rca3 Rc2 Ra5 Rff6 R3a4 Rdf1 Qe4 R1f2 Qe7 Nf4 Qe4 Rh6 Qh7 Bc3 Bb2 Rh5 Ba1 Ng6 Bb2 Kd1 d2 Nd3 Ba1 Rc1 Bb2 Kc2 d1R Kb3 Re1 Rc2 Rc1 Rd2 Ba1 Nde5 d3 Bd4 Nc6 b8B Bb2 Bc7 Nb8 Rc2 d2+ Nd3+ Nf6 Bce5 d1Q Rf3 Bba3 Ba1 Bb2 Bd4 Bc3 Bf2 Be5 Bfd4 Ng4 Kb2 Bd6 Rd2 Rc7 Rf2 Bc5 Bf3 Kf7 Kc3 Bh8 Rf6+ Kg7 Be2 Qh2 Rd6+ Qe5 Rdf6 Qg3 Rb6+
B5n1/KQ1k4/4RR1R/bq2P1R1/b1qBbrnp/1qr2n2/pNn4r/1N2B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 a5 e4 f5 g4 h3 b4 h2 g5 a3 c5 a4 e5 f3 b5 f4 c6 f2 g6 a2 c7 f3 b6 a3 g7 Nc6 b7 Bd7 b8B Qc8 Qd2 Bb4 Bg2 f1Q+ Qe2 f2 Bf4 Ba5 Kc2 d3+ Kb3 d4 Kc4 d2 Kb5 d1Q Kc5 d3 Bg3 d2 Nf3 Qb3 Qc4 d1N Qg4 Nd4 Ba7 Ba4 Nfd2 Nf3 Qb4 Ne3 Qb7 Kd7 Nc4 Ng4 Nb2 Qe8 Bb6 Rc8 Bh4 Qe2 Bg3 f1R Be1 Rf2 Rf1 h1B Ba7 Bb4+ Kb6 Qe4 Ka6 Ba5 Bd4 Qc6+ Ka7 Qcc4 Qe4 h4 Qb7 Rd2 Rf2 Rh6 Rf1 Rf6 Rf2 Rf4 Rf1 N8f6 g8R Rc2 Rg5 Ng8 Bh3 Rh2 Bg2 Ng1 Bd5 Be4 Rf2 Nf3 Rf1 Ke7 Rf2 Qeb5 Rf1 Rd8 c8R+ Rd7 Rb8 Rc7 Re8+ Kd7 Re6 N4h6 Nc3 Ng4 Rd1 a1N Nb1 a2 Rc1 Qe2 Rcc6 Nc2 Rh6 Kd8 Rce6 Rc3 Qa6 Qec4 Ba8 Nd2 Rf3 Kd7 Rf2 Rf7 Rff6 Nf3 Rfg6 Rf5 Rgf6 Rf4 Qb7+
1KB2N1n/2R5/kN3npQ/1pB3P1/1r2nB1q/4b2r/brqbN3/R1q1n1N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 g5 cxd4 Qd3 e5 Qh3 exf4 Qg4 hxg4 Kf2 b5 c4 d5 e4 Kd7 h4 Kc7 a4 Kb6 c5+ Ka6 a5 f5 e5 g6 c6 g3+ Kf3 d3 c7 d4 h5 g2 h6 b3 e6 b2 h7 d2 e7 d1N e8N d3 Na3 b1R Rh4 d2 Nd6 Rb4 Rg4 Nc6 Ra2 Nf2 Nc2 d1Q+ Be2 Nd3 Ba3 Nf6 Nb7 Be6 c8N Qd4 Nb6 Nd8 Ra1 Nf7 Nd8 Ba2 Ne6 Rb2 Rg3 Bb4 Nf8 Bd2 Bc5 Qc4 Nd4 Qdc2 Bf1 Rb4 Nde2 Ne1+ Kf2 Rb2 Rc3 f3 Kg3 Qb4 Rc4 f2 Rc3 Re8 Rc4 Re4 Rc3 Rg8 h8B Qba4 Bg7 Reb4 Rc4 Rh8 Rc3 Nd5 Be5 f4+ Kg4 f3+ Bf4 Rh3 Rc4 Nh8 Rc3 Kb7 a6+ Kc6 a7 Kb7 Be7 Ka6 Rc7 Qe4 Bc5 Qac2 Nc3 Qd4 Bd3 f1Q Nce2 f2 Bf5 Nd3 Bd7 Qfc1 Be6 f1N Bd7 Ka5 Bc8 Ng3 Kf3 Qf6 Kg4 Qc6 Kf3 Ne4+ Kg4 Qb7 a8Q+ Qa6 Qc6 Ne1 Qf6 Qa7 Qg7 Qb7 Qh6 Ka6 Bfe3 Ndf6+ Kf4 Rb1 Ke5 R1b2 Nf3 g1B Bf4 Bge3 Nfg1 Nf2 Kd6 N2e4+ Ke7 Rb1 Kd8 R1b2 Bf5 Qd5+ Kc8 Qg8 Kb8 Qh7 Qg7 Qh5 Qh6 Qh4 Bc8+
q2b4/3N2Qr/1Nn1rP2/2N1pqbp/1n2Bk1q/R2B2nn/3R2K1/Br1b1N2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 Kf7 Kf2 Kf6 g4 h5 c4 e5 a4 b5 a5 d5 g5+ Kf5 g6 b3 g7 d3 c5 h3 c6 h2 a6 b4 c7 e3+ Kf3 e2 a7 e1B Qe2 b2 Nd2 b1Q Qg2 b3 Ne2 b2 Nb3 d2 Nc5 d1Q Nb7 d4 Qg1 d3 Qb6 d2 Ra4 Qh4 Ra2 Qa4 Nc3 d1N Qg1 Nf2 Ra3 Nc6 Nc5 Nh3 Nd1 Be7 Kg2 Nf6 g8N Nd5 Nf6 Rh7 Nfd7 Ndb4 Bd3+ Kg4 f5 Bd8 f6 Bd2 Ne3+ Kf4 Nf1 Rb8 a8N Rb6 Be4 Ba6 c8B Be2 Ba6 Bd1 Bad3 Qbc2 Nc7 b1R Bb2 Qa8 Ba1 Ra6 Ne8 Rb6 Nd6 Ra6 Nc8 Rb6 Qd4 Ra6 Rg1 h1N Ncb6 Ng3 Qd5 Rf7 Rh1 Rh7 Qg8 Bc1+ Be2 Bd2 Qg7 Be3 Rh2 Bc1 Bd5 Qf5 Bd3 Nd4 Nc8 Re6 B5e4 Ndc6 Ncb6 Bd2 Qe7 Kg4 Qg7+ Ng5 Kg1 Bf4 Rha2 Bc1 Qh6 Nh3+ Kg2 Bg5 Rd2 Kf4 Qg7
2B1n2b/K3QRN1/1p3qqr/2k3n1/2qN2N1/p2nP2R/1b1r1r2/RN2n1Bb b - - 0 1 illegal: No proof kernel
Nb3N2/1q1Q4/p3q1BK/1bB1P1r1/b1Rn1B1p/4r1q1/1n1n2r1/NRrk3N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 h3 Kf3 Ke7 Kg4 Ke6 Kh5 Kf5 b4 Ke4 g4 f5 c4 d5 g5 a6 c5 d3 g6 a3 g7 d2 e3 h2 b5 f3 b6 f2 b7 a2 c6 f4 c7 f3 Nh3 d4 Qc2+ d3 Qb2 d1R Be2 f1B Na3 d2 Qf6 f2 Qc3 Qd3 Nf4 Bd6 Bb2 Nf6+ Kh6 Re8 g8N Bd7 c8N Ba4 Qc1 Nc6 Kg5 h5 b8B h4 Rg1 h1Q Rg4 Be5 Qc2 Rc1 Bd4 d1N Qd2 Rc2 Nge7 Nb2 Rd1 a1Q Bc5 Qa2 Neg6 Ra7 Nb6 Rg7 Rb1 Qd6 Bc4 Kf3 Qd3 Ne4+ Kh6 Qc7 Nf8 Rg5 Bb3 Rc1 Bf7 Nd2 Qh7 Bfb5 e4 f1R Na8 Rg1 Nd3 Ke2 Nc2 Kd1 Bg6 Qh2 Rf4 Qb7 Qd7 R1g2 Na1 Qg3 Bc7 Bd6 Rg4 Ree5 Rf4 Qe6 Nf2+ Ke2 Nh1 Kd1 Ba5 Bb8 Bc7 Ref5 Rg4 Rf3 B7d6 Re3 Be5 Qf2 Bg3 Qf4 e5 Qf3 Rc4 Nd4 Bf4 Qf2 Qh7 Qg3 Qd7
2Rq4/1r2BpBB/n2p3N/NqP3Rb/5n1K/n1qQ1rrB/1b5b/N3k1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Ke6 h4 Kd5 c4+ Ke4 c5 g5 h5 b5 e3 b3 a5 f3 Kg3 f2 a6 d3 h6 d2 h7 d6 a7 b2 Ne2 Kd3 e4 b4 e5 b3 e6 Bg7 e7 Nf6 e8N Nh5+ Kh2 g3+ Kg2 g4 Nc7 Na6 Nd5 Rb8 a8B Rb7 Rh2 Rg8 Na3 b1Q h8B b2 Nb6 Nf4+ Kh1 Bc3 Rh5 g2+ Kh2 g1B+ Kg3 Ke3 Bh3 f1R Rg5 Bh2+ Kh4 Kf2 Nd4 g3 Ra2 g2 Bg7 g1B Nac2 Bg4 Nf5 Bh5 Na1 Qd3 Ra3 b1N Nh6 Bb2 Nc4 Qc3 Qb3 d1Q Na5 Qd5 Qc4 Qh1 Qd3 Ke1 Rb3 Na3 Rb4 Rc7 Be4 Rf3 Rb8 Rb7 Rc8 Qg2 Be3 Qf1 Bh7 Qe2 Bed4 Qee8 Bf8 Qb5 Be7 Rg6 Rd5 Rg5 Bg7 Rgg3 Rg5
q5n1/b2kpr2/qNN3NB/1R1rQ2b/1r1b1q1P/4n3/2pR1nN1/1RK2Bb1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 g5 d4 b5 Kd2 c5 h4 g3 a4 b3 a5 e3+ Kc3 b2 Kc2 g4 a6 e2 a7 e1N+ Kd2 g2 f5 c3+ Ke2 c2 Kd2 b4 d5 c4 d6 c3+ Ke2 g3 f6 b3 f7+ Kd7 Ra3 Bg7 f8R Rh5 Re8 Nd3 Qe1 Nf2 Ra4 Rd5 Nd2 b1Q Ba3 c1Q Ke3 c2 Ra5 b2 Nh3 g1B Nf4 g2 Rb5 Qa1 Ng6 b1R Ke2 Rb4 Nf3 Qf4 Bc1 Qaa5 Qc3 Qa1 Qe5 Qa6 Ne1 Nc6 Bd2 Rb8 a8N Na5 Rh2 Nc4 Nb6+ Kc6 d7 Ne3 Bc1 Bb7 Rh1 Qc8 Rd8 Bf6 Qe4 Bd4 Kd2 Qa8 Qe5 Ba6 Ra5 Be2 Rb5 Qca6 Rf8 Bh2 Rd8 g1B Ng2 Rc8 Bb2 Bh5 Kc1 Kb7 Bc3 Rc6 Bd2 Rf6 Rc8 Rf7 d8N+ Ka7 Nc6+ Kb7 Rd8 Bg3 Rd6 Kc7 Nc8 Ba7 Nb6 Qf3 Qg5 Be5 Qg3 Bd4 Qe5 Ned1 Bh6 Qf5 Rh3 Qe4 Rc3 Ne3 Rb3 Qf4 Rb1 Bc5 Qe4 Re5 Rd2 Bd4 Nc8 Rd5 Qe5+ Kd7 Nb6+
1NKb2b1/5R1p/1rb1n1BN/1pQ1N3/4n1rn/2BBrr2/q1Nk1P2/r3r2R b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Ke6 c4 Ke5 a4 d5 a5 h3 a6 b3 g5 b2 g6 h2 g7 d3+ Ke3 d2 c5 d4+ Ke2 e3 Kf3 d3 a7 Kd4 Kf4 e5+ Kg3 e2 c6 e1R c7 e4 Kf4 e3 Qh5 d1N Qg6 d2 Qe8 e2 Nh3 Kd3 Ke5 Be6 c8B Ne7 g8N Na6 Rg1 h1B Ra4 Nc3 Re4 d1R Qc6 Qa5+ Kd6 Nc5 Na3 b1R Nh6 Rb6 Kc7 Ng6 Nc2 Be7 Bd2 Rf8 Ng5 Ra1 Ngf7 Qa2 Rf4 N3e4 Bc3 Nh4 Qb5+ Bc4 Bf5 Ne6+ Kd7 Rg8 Qc5 Rg4 Bg6 Rf8 a8N Bd8 Nc7 Bg2 Rh1 Bf3 Bd4 Kd2 Ne5 Bg2 Rf7 Bb3 Rg7 Rf3 Na6 Nf4 Qb4+ Rc3 Ne3 Ng3 Be8 Rbg6 Rf7 b5 Nb8 Rb6 Rg7 Bc6+ Kc8 Reb1 Qc5 e1R Nc2 Rf3 Rg8 Ne4 Rf8 Ree3 Bg6 Bg8 Rf7 Rbe1 Bd3 Ne6 Bc3+
2Q1r2r/npb3BB/rnR3n1/R1N1PRBb/p1b1rN1r/4q3/2k3K1/2r3B1 b - - 0 1 illegal: No proof kernel
R1k1r2R/p4N2/r4br1/r4np1/4br1B/Q3N1r1/1Pb1BqnK/3N1BBn b - - 0 1 illegal: No possible last move
4N3/QKn1B3/2np3R/1pP5/q2N1b1b/3B1b1n/b1BkNR1b/2nNnrr1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 e4 Ke5 a4 b5 c4 f5 a5 g5 h5 d3 c5 Kd4 h6 f3 h7 d2 e5 b3 a6 d6 a7 b2 e6 f4 e7 Na6 e8N Qa5 Nf6 Qa4 Rh5 Ne7 Qe2 d1N+ Ke1 g3 Kd2 g2 Rh3 f2 Ra2 g4 Qe1 g3 Nc3 b1B Nce4 f3 Bd3 Rg8 h8N Bh6+ Ng5 Nc7 Ne8 Bg4 Qe6 f1N+ Ke1 Kc3 Bc2 Nf2 Be3 Nc6 Nhf7 Nd2 Nd8 Nb3 Qf7 Nc1 Nde6 Bh5 Rh1 Nh3 Nd4 Rg7 Rb2 Ba2 Bd3 Rc8 a8B Rg8 Re2 Rg6 Bc2 f2+ Kd1 f1N Ne4+ Kb2 Bg5 Ne3+ Kd2 Bf3 Bh4 Bf4 Rf2 Rg7 Nge2 g1B Bd8 g2 N4c3 Bgh2 Be7 g1B Bb7 Bhg3 Rhh2 Bh4 Nd1+ Ka3 Kc3 Ng2 Bd3 Ne1 Rh1 Ra8 Bc8 Bgh2 Bcf5 Rb8 Bc2 Rg1 Bfd3 B2g3 Qe6 Bh2 Qd7 Ne6 Qb7 Nc7 Qa7 Rf1 Rg1 Rc8 Rg6 Rd8 Rh6 Rd7 Bf6 Rg7 Bd8 Rgg1 Be7 Bfg3 Kd2 Kb4 Ke3 Bh5 Ke4 Bf4 Nf5 Bg4 Nfd4 Bf3+ Kf5 Nd5 Ke6 Nc7+ Kd7 Nd8 Kc8 Nc6 Bh7 Kc4 Kb7 Kb4 Ng3 Kc4 Bhd3+ Kb4 Nb2 Kc3 Nge2+ Kd2 Nd1
n3Nnr1/3BR1r1/1Br4B/rb1K4/1QrR1N2/Bn1q1rPp/1q1bp2N/k7 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 Ke3 Kf6 d4 b5 a4 h5 f4 e5 g3 c5 a5 b3 f5 c3 d5 c4 d6 b4 d7 c2 a6 b2 a7 b3 Rh3 c3 Qg4 Bb4 Nf3 Ba6 Bb5 Ne7 Ra5 Nd5+ Kf2 e3+ Ke2 e4 Nh2 Ke5 f6 Kd4 f7 Nc7 f8B Rg8 Bd3 Bb5 Na3 b1Q Bc4 b2 Bd2 c1N+ Ke1 e2 Kf2 e1R Bg5 c2 Qf4 Kc3 Qd6 e3+ Kf3 e2 Ke4 Rf1 Be3 Rf3 Qc6 Nb3 Qg6 c1R+ Bd3 Qc2 Ra6 b1R Qb6 Kb2 Beh6 Bd2 Ra4 Ka1 Rd4 Qb2 Nc4 Rc3 Bc5 Rbc1 Ne3 Rc4 Ba3 Rc6 Nd5 R1c4 Nf4 Rg7 Ng4 Rg8 Rh2 h3 Qa5 h4 Qb4 Rg7 Ke5 Rg8 Bf5 Rg7 Rf2 h2 Ke4 h1R Nh2 h3 Ke5 Ne6 Kd5 Na6 Bg4 Rac8 a8N Nf8 Nc7 Rg1 Ne8 Nc7+ Ke4 Na8 Kd5 Rgc1 Be6 Ra6 Bf5 Ra5 Be6 Qf6 d8B Qg6 Bb6 Qd3 Bg4 R4c6 Bd7 R1c4 Ng6 Re3 Rf7 Rf3 Nf4 R8c7 Bf5 Rg8 Rh7 Rcg7 Bd7 Rg4 Rf7 R4g7 Re7
1b1B1bB1/4R3/bKN5/B2b1k2/r2nr1N1/nNb1p1qP/Q1p1r2b/2N3Rq b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Ke6 d4 b5 f4 g5 a4 c5 h3 g3 d5+ Kf5 a5 e5 d6 b3 a6 c3 a7 c4 d7 b4 Qd6 g4 Ne2 g2 Bd2 g1R Ra3 g3 Qd5 c2 Nbc3 c1B Na2 c3 Qc6 b2 Ra4 b1Q Qb6 c2 Qc5 b3 Nec3 g2 Qc6 b2 Be2 Qh4 d8N Nh6 Qe8 Nc6 Nd5 Na5 Bc4 Ba6 Nf6 Rf1 Bb3 Rf2 Nc6 g1B Bg8 Bh2 Rg1 Rh7 Rb4 Re7 Ng4 Qa1 Rb8 b1B Rb7 Ba3 Qd8 Bd6 Nc1 Bb8 Qd5 Ba2 Be1 Re8 Re7 Rd2 Qb3 Rd4 Qb1 Bd5 Qa2 Nc4+ Ke2 e3 Ba5 Ke4 f5 Qg3 f6 Kf5 f7 Re4 Kd3 Qb1 Kc3 Qa1+ Kb4 e2 Kc5 e1B Bd8 Bc3 Ba5 Na3 Kb6 Bg7 f8B Re2 Rd7 e4 Be7 e3 Bd8 Re4 Re7 Bf8 Nd3 Qf1 Nc1 Bf4 Rg2 Qh1 Rg1 Rc8 a8N Bb8 Nc7 Ra4 Na7 Re4 Ne6 Rcc4 Nc6 Ra4 Nf4 Kg5 Nfd3 Nf5 Nb3 Nd4 Ndc1 Kf4 Bb4 Kf5 Ba5
1N4N1/1n5Q/nNP1nRr1/1B2KR2/rb1B1Nbr/1p2n3/kp1qr3/1b3R1n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 b5 g4 f5+ Ke5 d5 e4 h5 a4 d3 g5 b3 a5 Kb4 c5 d4 g6 f3 g7 f4 c6 d2 a6 d3 a7 f2 Bb2 h3 Nf3 h2 Ra2 h4 Bh3 f1N Qe2 d1N Qg2 d2 Bd4 b2 Qg5 Kb3 Qf5 b4 Qd7 Na6 Kf5 Nde3+ Ke5 d1R Qf5 Rd2 Qf7+ Nd5 Bb6 Ne3 Bg4 h3 Bc7 Rh6 Rd1 h1N Bb6 h2 Ra5 Rg6 Rf1 Re2 Nc3 Nh6 g8N Nhf5 Qh7 Ndc7 Nd5 Nd6 Bd4 Ne6 Bf5 Nb7 Rb5 Rb8 a8N Ka2 Nab6 b3 Ng5 Bb4 Nd7 Ra8 Bb6 Nac7 Nh3 Nf8 Kd4 Ra4 e5 Ng3 e6 h1R e7 Na6 e8R Rhh2 Ba7 Nh1 Nb8 Be6 Bc2 Bg4 Bd3 Ne6+ Ke4 Qd6 Rf8 Qd7 Rf6 f3 Rd1 f2 Nhf4 Qd8 Rf1 Rh4 Bc5 Qd6 Nb6 Qd8 Bc4 Qd2 Bd4 Re1 Rg1 f1B Rbf5 Bd3+ Ke5 Bb1 Bb5 Re2 Rf1
q1R2n2/2NN1R1p/1rkbbn1Q/2B3pB/6r1/nq3Pqn/3n2N1/K1R2n1R b - - 0 1 illegal: No proof kernel
r1b1r3/B3p1B1/1b1n2r1/pqR2Nn1/1N1R2nB/2kn2N1/PnNq2n1/Q6K b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 h5 Nc3 h4 Be2 h3 Bf1 fxg6 Bg2 hxg2 Nb1 g5 Qf3 g4 Qe2 Bd7 Qd1 Bc8 d4 Kf7 b4 Ke6 h4 Kd5 f4 g5 Kf2 a5 f5 c5 h5 g3+ Ke3 c3 f6 Kc4 f7 g4 h6 c2 h7 Nf6 d5 Bg7 f8B Nbd7 b5 Nb6 Bb2 c1N d6 Nd3 Ba3 Nb2 Ke2 e3 d7 Qe8 Ke1 e2 d8N Bh6 Nb7 Be3 Rh5 Qd7 Bh6 Re8 h8B Qc6 Nh3 g1N Ng5 g2 B8g7 g3 Ne4 Nh3 Bg5 Ng4 Bh4 Ng5 Qc1+ Kd3 Nbd6 c4 Nf5 c3 Bc5 c2 Na3 N6c4 b6 Qb5 b7 Nd6 Ba7 Bb6 b8N g1N Nc6 g2 Qb1 N1h3 Neg3 Nhf2 Qc1 Bd4 Qd1+ Kc3 Nb4 c1Q Nac2 g1R+ Nf1 Rg2 N1g3 Ne5 Rb1 Nfg4 Ra1 Bb6 Rb1 Ne3 Ra1 Rg1+ Kf2 e1N Rb1 N1g2 Qf1 Qd1 Ra1 Qdd3 Rd1 Qdd5 Rd4 Ned3+ Ke2 Nge4 Kf3 Ng4 Qb1 Rh1 Qa1 Ng5+ Ke2 Rh3 Kf1 Rh2 Kg1 Rh3 Nf1 Re3 N1g3 Re6 Kh1 Rg6 Rh8 Qe4 Rf8 Qe3 Rf6 Qf4 Re6 Qe3 Re5 Qd2 Rc5+
3NnNn1/r2PRN1n/B1pRqnK1/1n4b1/1B3N2/p1n5/rq1r4/kQ1b2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 f5+ Ke5 h5 e4 a5 g5 a3 b3 a2 d5 a4 g6 c6 d6 f3 g7 f2 Bb2 a3 Rh2 f4 Qd3 f3 Qd4 h3 Rg2 h4 Qd3 h2 Bc1 h1N Qd2+ c3 Rg4 h3 Bc4 f1R Bb2 f2 Qe2 c2 Ba6 c1Q Rg5 h2 Bd4 Bg4 d7 Ng3 Qd1 h1N Rg6 Be7 Rd6 Nh5 Nf3 Qe8 Nc3 Qb2 Nh4 Ra7 Ne2 Nhf6 Nf4 Nh7 Qb1 Bd1 Kf5 Bg5 e5 Re1 e6 f1N e7 Re2 Nhg6 Nh2 Bg1 Kc3 b4 Rd2 b5 Nf2 b6 Ne4 b7 Ng4 Nf8 Ng4f6 N8e6 Qf7 Nd8 Qe6+ Kg6 Kb3 e8N Nc3 Bd3 Na6 b8B Nc7 Ba6 Ng4+ Nf6 Ne8 Qe4 Ra8 Rc1 a1N Qb1 Nc2 Bba7 Nd4 Bc5 Ra7 Bb4 Ndb5 Rc2 Rd4 Re2 Rd2 Re3 Qd5 Re7 Qe6 Qd3 Ka2 Qf1 N8h6 g8N Ka1 Qd3 Nf7 Nh6 Rf8 Nf5 Nfh6 Qe4 Ng8 Nh6 Qc4 Nhf7 Qe2 N6d5 N4f6 Nfe6 Qg4 Ndf4 Qh3 Ne5 Rf7 Nf8 Qe6 Qc2 Qbb3 Bf2 Rd3 Ne2 Nfd5+ Kh5 Rd4 Be3 Rf2 Nef7 Ndf6+ Kg6 Rh2 Nf4 Qb1 Qd3 Ra2 Qe4 Qb2 Bg1 Rd2 Qb1+
q1b1N1K1/P1bnb1n1/1Q2pp1k/1RR4N/nn3B2/R6B/1n1r2qr/n1NR4 b - - 0 1 illegal: No proof kernel
1bB2qn1/pK2p3/PR4Q1/3n3N/kn2RRn1/2R4N/qbBn2n1/1r1r1B1b b - - 0 1 legal: proof: f4 c5 g4 g5 b4 cxb4 e4 d5 Bb2 dxe4 Bf6 gxf4 g5 h6 g6 Bg4 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 a4 Kc6 c4 f5 d4 b5 h4 e3+ Kf3 e2 h5 e1N+ Ke2 b3 a5 f3+ Ke3 f4+ Ke4 b2 a6 f2 h6 b4 c5 b3 h7 g4 g7 f3 Bd3 f1N Ra4 f2 Rb4 g3 Qg4 g2 Rh3 Nh2 Bc2 f1N Nc3 b1N Nce2 b2 Nf4 Bb7 Rc3 Ne3 Nh5 Nd5 Nh3 g1B Qg3 Ng2 Qg6+ Qd6 Rbc4 Kb5 c6 Qf6 c7 Ng4 c8B Nc6 Ra4 Rb8 Rb4+ Ka5 Rb6 N8h6 g8B Ncb4 Bf7 Ng8 Be8 Bg7 Bb5 Bh2 Bf1 Nde3+ d5 Qf8 Ng3 Ba8 Nh5 Rb7 d6 Ned5 d7 Bb8 d8R Bd4 Bcd3 Ka4 Rdd6 Bg7 Rf6 Nd2+ Kd4 b1Q Kc5 Qa2 Rf4 Bf6 Bc2+ Ka5 Rcf3 Bb2 Rb3 Ka4 Re4 N8f6 Rf4 Rg8 h8R Rg7 Re4 Ng8 Rh7 Rf7 Rg7 Rf3 Rf7 Re3 Rf3 Re1 Rff4 Rd1 Rc3+ Nb3+ Kc4 Rc7+ Qc6+ Ka3 Kb5 Nh4 Rg3 Nde3 Re5 Nd2 Qg6 Bh1 Bb3 Ned5 Ree4 Rcc1 Rc3 Rb1 Kc5 Ng2 Kb5 Nd3 Kc6 N3b4+ Kb7 Nf3 Bbc4+ Ka4 Bcd3 Nd2 Bc2+
1k2Nr2/3B4/n5K1/b2N3n/BBnp2B1/1N2rQRn/2nPbpr1/qR1q2r1 b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 h5 Kf3 b5 Ke4 f5+ Ke5 d5 e4 Kd7 a4 c5 g4 Kc7 a5 b4 a6 h3 g5 b3 g6 h2 g7 b2 a7 h4 Qc2 h3 Nf3 c4 Ra4 d4 Ra6 Bb4 Ng1 f3 Rb6 f4 Rg6 Bg4 Rd6 Nf6 g8N Na6 Nh6 Rg8 Nf5 Nh5 Qa4 c2 Be2 c3 Na3 b1N Nc4 Na3 Bb2 c1R Ne7 c2 Bc3 Re1 Qe8 c1Q Rg6 Nc2 Qf7 Qf8 Qd5 Ba5 Bb4 Qa1 Nd6 Rc8 a8B Kb8 Bd1 Re3 Ne2 Re8 Re1 h1R Bc6 h2 Nc1 Rg1 Ba4 h1N Nb3 Nf2 Qf7 Rd8 Nd5 Qg7+ Qf6 Rdf8 Be2 Nh3 Rb1 Qd7 Rg5 f2 Bf3 f1N Bd1 f3 Qf7 Nhg3 Kf6 f2 e5 Re1 e6 Nfe3 e7 Nc4 e8B Re3 Rg7 Bf3 Rg6 Qg4 Bed7 Rg7 Ne8 Qh5 Rh6 Rg5 Rg6 Qg4 Kg7 Nh5+ Kh6 Be4 Bf3 Bd3 Be2 Qf3 Rg8 R5g2 Rg3 Qg4 Qf6 Qf3 Bd1 Bf1 Kg6 Qe2 Qf7 Qe1 Bf3 Be2 Bfg4 Qd1 Qf3
1k1N1rb1/6b1/QqBN4/r1n1q3/1P2NbRn/4prBr/pB4R1/N2K1b1b b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 e5 b4 d5 c4 Kd7 g4 Kc7 g5 h5 f5 a5 f6 e3 g6 d3 f7 d2+ Ke2 d4 c5 h3 c6 h2 g7 h4 Nh3 d3+ Kf3 e4+ Kg2 a3 Be2 a4 Kf1 a2 Qe1 d1R Nf2 h3 Bb2 d2 Ba3 Be6 Bb5 Nh6 Ke2 Nf5 g8N Bd6 f8B Bf4 Ba6 Nd7 Bb5 Nc5 Bc4 Kb8 Rf1 h1B Ne7 h2 Bd5 Bg8 Bb2 a3 Rg1 Nh4 Rg4 Ra5 Qf1 Qb6 Bfg7 Bg2 Bf8 h1B c7+ Ka7 c8N+ Kb8 Bc6 Rc1 Bd5 d1R Nd2 Rc3 Nb3 Rdd3 Bc6 Bh3 Rd1 a1B Nd6 a2 Rd2 B3g2 Ke1 e2 Bg7 Rh3 Be5 Rcf3 Rc2 Bh6 Bg3 Bg7 Kd2 Be5 Kc1 Bf4+ Rd2 e3 Nfe4 e1Q+ Kc2 Qf2 Qa6 Bf1 Kd1 Qg1 Rg2 Qh2 Bc1 Bg7 Na1 Rh6 Bb2 Rf6 Nec8 Rf5 Nb7 Rf8 Nd8 Rf7 Bf2 Rf8 Ncd6 Qg3 Rg6 Qg5 Bg3 Qe5 Rg4
N2R4/kq5b/1bbqb1rB/1R2pnnn/Pn1RN2N/4p3/nr2Q3/1B2K2N b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 h5 g4 e5 a4 d5 c4 Kd7 f5 Kc7 c5 b5 c6 Kb6 f6 h3 c7 b3 g5 b4 g6 b2 f7 d3 g7 e3 Bg2 h2 Ne2 d2+ Kf1 h4 Nf4 b3 Bh3 d4 Bd7 d3 Be8 h3 Ne6 Ne7 g8R Qd6 Qf3 d1N Nd8 d2 Bb5 Nbc6 Ba6 Nc3 Qg2 d1N Qe2 Be6 Rhg1 h1N Ke1 h2 Nd2 b1Q Nf1 b2 Bd3 Na2 Ng3 Ncb4 Nb7 Nf5 Nc5 Ra6 Nce4 Ndc3 c8N+ Kb7 Nb6 Ka7 Rg4 Rg8 Rg2 Rg6 Na8 Rb6 Rf2 Be7 f8N Bd8 Rff4 Rb7 Rh4 Bb6 Rh8 Qc2 Rg8 b1B Ba3 Qb3 Rh4 Bc2 Rb1 Rb8 Rb2 Qbd5 Rgh8 Qb7 Rg4 Bcb3 Bb1 Bc2 Nf2 Bd3 Nge4 Nhg3 Nh1 Nh5 Rb3 Na6 Rb5 N6b4 Rh7 Bc2 Rd7 Bd3 Rd8 Bc2 Nd2 Ne4 Rh4 Ng5 Rd4 Rg8 Ne4 Rg7 Nhg3 h1B Ng6 Bf3 Nh4 Rg6 Nc5 Bc6 Nce4 Bg8 Nh1 Bcb3 Nc3 Bh7 Ne4 Be6 Qc2 Nd5 Bc5 Ndb4 Qe2 Qdc7 Be7 Qd6 Bf8 Rc8 Rd2 Bcd5 Rb2 Rc2 Bh6 Bc6 Rb3 Rd2 Rd3 Rb2 Rd4
3k4/qnN1bQ1b/4r1RK/q1p2N2/1B1pB1PR/5NN1/qqr4b/b1n2Bq1 b - - 0 1 illegal: No proof kernel
1r1N2b1/2q1Nr2/K1QqR3/1Pb4r/1NBp1k1N/1rR1B2b/b2n1p2/1Bb2n2 b - - 0 1 illegal: No possible last move
2Bb1rrn/r1k1n2q/3R1R2/1P3R1Q/1B1p1p1n/r4BNq/r7/n1NbK1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 g5 h4 d5 e4 Kd7 b4 a5 h5 f5 e5 f3 b5 d3 e6+ Kc7 e7 g3 e8R a3 h6 d4 c5 a4 h7 g4 c6 g2 Ne2 g1N Nd2 g3 Nc3 a2 Re5 f4 Ne2 a3 Bh3 f2+ Kf1 Ne7 Rh2 Qd7 Re6 Nf3 Nb1 d2 Rg2 Nh4 Nbc3 Ra7 Nb1 Neg6 Rg1 Be7 Rf6 Bd8 Bg2 Rf8 h8B Qh7 Bf3 Bg4 Bg7 Nh8 Nbc3 Bh5 Ne4 Bg4 Qe1 d1R Be3 Rd3 Nc1 g2+ Ke2 Rb3 Ng3 f1Q+ Kd2 Rc3 Qd1 Bh5 Rh1 g1R Qe2 Rg2 Bg1 Re3 Rd6 Ree8 Be5 Rf2 Bg7 Qh3 Ke1 Rg8 Bf6 Ref8 Be7 Bg4 Rf6 Bh5 Bb4 Bg4 Rb1 a1R Rb2 a2 Rc2 Bh5 Rc5 Ra3 Rcf5 Rh2 Bg2 Ra7 Qe8 Bd1 Bd5 Rc2 Qh5 Rc3 Rh2 Rca3 Re2 Kb6 c7+ Nc6 c8B Kc7 Ree6 Ne7 Bc6 Rb1 B8b7 a1N Bc8 Rb2 Bf3 Rba2 Rd6
q3bbnn/Br1BqN1b/5nPR/r1pb3p/6BN/3R3K/1nRQ4/k2Rb3 b - - 0 1 illegal: No possible last move
bR6/4qQ1N/1Nq1P1K1/pB2knRr/1r1q1bn1/1nq2Bp1/2n3nB/2NB4 b - - 0 1 illegal: No proof kernel
3NB1bq/Kbbn4/NR2p3/P2kN2n/R1Q3b1/2bnBp1q/6rR/3r1R1n b - - 0 1 illegal: No proof kernel
n1b5/1kb4b/1N1pPn2/2b1nn2/1B3q1r/1K1pN2R/N2R1Qr1/1R1BRq1n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 h4 g5 a4 b5 e4 f3 c4 f2 Kc2 g3 c5 f4 h5 b3+ Kb2 d3 h6 g2 c6 g4 e5 g3 h7 f3 c7 Na6 e6 Bd6 a5 Nf6 Nh3 g1B Be3 g2 Be2 f1N Bh6 f2 Qe1 Ne3 Qd1 f1N Nc3 Ng3 Na2 Nef5 Bf4 Bgc5 Bc1 g1N Nf4 Nf3 Qf1 Ne5 Rh6 Nh1 Kc3 b2 Rh3 b1B Qf2 Rg8 Qh2 Rg2 h8R+ Ke7 Kb2 Qf8 Nd5+ Ke8 R8h4 Qh6 Rc4 Qf4 Rc2 b4 Bd1 b3 Qg3 Nh4 Qf2 Bb7 c8N Kd8 Bg4 Qf5 Qe2 Nc7 Nab4 Ba2 Nce7 Bc8 a6 Qe4 Kc3 b2 a7 b1Q Ne3 Bd5 Ba3 Qf1 Qf2 Qf5 Rd1 Be4 Re1 Qf3 Bh5 Bh7 Rd2 Nf5 N7d5 Rb8 a8R Rb7 Na6 Rb4 Rb8 Rh4 Nab4 Na8 Na2 Qf4 Rbb1 Bb8 Bb4 d6 Nb6 Kc7 Kb2 Kb7 Bd1 Bc7 Kb3
4q3/2Bn1bK1/2p1bNb1/R4r2/pr1Qb2R/3nP3/Nn1NNn1b/2q1RB1k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 Ke4 g4 f5 d4 a5 b4 h3 b5 c3 d5 f3 g5 a3 d6 c2 b6 a4 b7 a2 e3 h2 d7 f2 g6 f4 g7 c6 Be2 f1B Bb5 f3 Qe2 f2 Na3 Na6 b8N Nb4 Rb1 a1Q Ba6 Nf6+ Kh6 Nd3 Nf3 Bd6 g8R Qe8 d8N Nd7 Ne6 Nb2 Qd2 Bc4 Rg2 f1B Bb5 Rf8 Qb4 Rf5 Rg7 Bd3 Re1 h1B Na6 Rb8 Rg5 Bh2 Ned4 Bf7 Bd2 c1N Kg7 h5 Nc4 h4 Nce5 h3 Ng4 Bc2 Bc4 Ncd3 Ne2 Rbb5 Rbd1 Qc1 Qd6 Rb3 Ba5 Rb4 Bc7 Bg2 Rh1 Bb1 Rde1 Bc2 Nfd4 Bb1 Nb3 Kf3 Nf6 Kf2 Rg4 Be4 Rh4 Kg2 Qd4 Bc2 Rhf1 Bb1 Nd2 Bc2 Ng1 Kh1 Rf2 Nb6 Rg2 Bce6 Rg5 Nd7 Bb5 Bd1 Bc4 Bdh5 Bb5 Bhg6 Ne2+ Bg1 Bc4 h2 Rgh5 Kg2 Bb5 h1N Bc4 Nhf2 Bb5 Rb3 Nb4 Bh2 Na2 Rb4 Ba6 Rf3 Ra5 Rf5 Ng1 Kh1 Bb5 Nf4 Bf1 N4d3 Ne2
R1nn3n/2bNnqPN/RrBq4/5k1p/1r2pBR1/7b/Rb1N1nQ1/1Kb5 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Bd3 e3 a4 Kd7 g4 Ke6 f4 c5 g5 h5 g6 b5 a5 b3 g7 b4 a6 h3 a7 h2 Nf3 e2 Na3 c3 Ba6 b2 d4 b1N Qa4 c2 Nc4 b3 Nd6 b2 Qe8 c4 Ne5 c3 Nd7 Nc6 Ra4 Na3 Bb5 b1Q Nc4 Rh6 Nf6 Qa2 Nd6 Rb8 a8R Nc4 R4a6 Nb6 Rg1 h1N Qg6 Nf2 Ra5 Bd7 R8a7 Nc8 Nde4 Qd5 Bd2 c1N Qg3 c2 Ra2 Qe8 Be3 Ncd3+ Kd2 c1B+ Kc2 e1B Kb1 Bc3 Nd2 Nde5 Nh7 Nf7 R7a3 Nh8 f5+ Kf7 f6 Ke6 f7 B3b2 Qf3 Qc5 d5+ Ke5 d6 Bh3 Qg2 Kf5 d7 e5 Qh1 e4 Rg4 Bd6 f8N Qf7 Ra6 Nge7 Bf4 Qd4 Ba4 Rb4 Qg2 Rg6 Ra8 Qdf6 d8R Bc7 Rd6 Nd8 Nd7 Qd4 Rda6 Rgb6 Bb5 Qd6 Bc6
2Q2q2/3pb1n1/2pb1k1n/1rPRBqnn/1r1N1NBR/3R3B/n3bB2/1b5K b - - 0 1 illegal: No possible last move
QrR1Nrbb/1P1K1p2/3B1bN1/6bN/n2bBq2/p1Bn4/1N2q3/k1R2nn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 c4 g5 h4 d5+ Ke5 a5 e4 g3 h5 g4 h6 d3 h7 f3 b3 g2 c5 d2 c6 g3 c7 a3 Bb2 f2 Bc1 a2 Rh6 a4 Qc2 d1N Ne2 g1B Rd6 g2 Nd2 a3 Ng3 d4 Bd3 f1N Rd7 Nf2 Kf5 Nc6 e5 Bh6 e6 Nge7+ Kf6 Rf8 h8B Rb8 Qd1 Kc3 b4 Ne5 b5 Nf3 Rd5 Qd6 Be4 d3 Nc4 d2 b6 Nd3 Qa4 d1Q b7 Qe2 Nh5 Bd4+ Re5 g1B Nb2 Bgf2 Qa8 Ng1 Bf4 Kb3 Rb1 a1B Rc1 Ka2 Rc2 Bd7 c8N Nd5+ Kf5 Ba4 e7 Bh4 e8N B6g5 Ne7 Nb6 Ng6 Bd7+ Re6 Na4 Bf6 Qb4 Bd6 Bb5 Bg7 Bgf6 Re7 Bhg5 Rec7 Ba6 Rc8 Kb1 Bh6 Bh8 Bg7 Bdf6 Nc4 Bad4 Nb2 Ka1 Bh6 Bc1 Bd2 Bc4 Bc3 Ba2 Bg2 Bb1 Bh1 Bce3 Ke4 Bc1+ Kd5 Bcg5 Kc6 Qc4+ Kd7 Qb4 Be1 Qbd2 Bf3 Qf4 Be4 Qd1 R2c3 Qfg4+ Bf5 Nb4 Ne7 Qde2 R3c5 Bd3 Rc2 Qf4 Bc3 Be4 Bh3 Nd3 Bg2 Bg6 Be4 Bh7 Ng6 Bg8 Rc1+
2b3Q1/1B2N1rq/1qr4b/5qR1/3RB3/kp1b1nP1/N2pR1KB/3nbnRn b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 a4 e5 f4 Ke7 Kf2 Kd6 c4 Kc5 a5 d5 f5 h5 g3 b5 a6 b3 f6 Kb4 f7 e3+ Kf3 d3 a7 d2 c5 h3 c6 h2 c7 h4 Ne2 h3 Bb2 e4+ Kf4 d4 Nec3 d3 Na3 e2 Rg1 e1Q Qc1 h1Q Be2 d1N Rb1 d2 Ra1 e3 Bc4 e2 Ne4 h2 Bd5 Rh6 Nf6 Nd7 Bd4 b2 Nb1 Ne5 Bb7 Ne7 Ng8 Nf3 Ra5 Qf2 Nc3 Nf5 Ne7 b1B Na2+ Kb3 Bc5 e1B Qc4+ Kb2 Kg4 Rc6 Kh3 Bh6 f8R b4 Qg8 b3 Re8 Bd3 Rb5 Rb8 a8B Qd7 Ba7 Qb6 Rd5 Ka3 Rd4 Rc2 Be4 Rc6 Bb7 Ra8 Rd8 Qe6 R8d5 Nfe3+ Rf5 Ng4 Rh5 Qf5 Rg5 Nge3+ Rg4 Be6 c8R Nf1 Rf8 Re8 Rf6 Bc8 Re6 Rd8 Re5 Rd7 Re6 Qf7 Rg5 Qh7 Bg6 Qf7 Re2 Qh7 Be4 Qg2+ Kg4 Qf2 Kh3 h1N Rc5 N3h2 Rg5 Qff5+ Kg2 Nf3 Rd6 Ne5 Ng6 Rf7 Ne7 Qa5 Rd5 Nh2 Rf1 Rg7 Bg1 Qb6 Rd4 Nhg4 Bh2 Nf3 Kh3 Nge3+ Rg4 Kb2 Rg1 Nf1 Kg2 Ka3 Rg5
rnN3R1/q2N2nQ/6R1/2bNrqqq/1b6/1pP1n1Rb/2RK1BBp/5k1b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 f4 Ke6 a4 Kd5 a5 e5 g5 h5 f5 b5 f6 h3 a6 h4 a7 b3 f7 h2 g6 e3 g7 Ke4 Ra6 d5 Ba3 b4 Be2 b2 Qd2 h3 Rh6 d3 Kd1 b3 Rb6 d4 Be7 Rh5 Rg6 Nh6 g8R Nf5 Bg5 Bc5 f8N Ng7 Qe1 d2 Bf4 Qg5 Nf3 Bd7 Rf1 h1B Rc6 h2 Bg3 Bh3 Bh4 Kf4 Rg6 e4 Bd3 Kg4 Nc3 b1Q+ Ke2 d1N Qf2 Qa1 Ke1 e2 Nd7 Ne3+ Kd2 Qa4 Ba6 d3 Rg1+ Kf4 Bb7 e1B+ Kc1 Qd4 Nb6 Qd7 Nc8 Qdf5 Rg3 d2+ Kb2 d1Q Ne5+ Qf3 Nd7 Bd2 Qg1 Be1 Kc1 Qf2 Rg2 Kf3 Nd5 Ke2 Rg3 Beb4 c3 Q2f3 Qg2+ Qf2 Qf3+ Kf1 Qg4 Qg1 Kd2 Qe6 Rd8 Nef5+ Kd1 e3 Rg8 Bd6 Qe4 Qgf6 Nf4 e2+ Kd2 Qb6 R3g5 Bdc5 Bg3 Ne3 Rh6 Qfd8 Rg4 Re5 Qh7 Qg5 Bf2 Qef5 Rg3 Qa6 Be4 Qa3 Rg6 e1Q+ Kd3 Qb1+ Kd2 Qfg4 Nd5 Q4h5 Bf3 Qbf5 Be4 Na6 Bf3 Rb8 a8R Qa4 Ra7 Ra8 Be4 Nb8 Bf3 Qb5 Ra2 Qa4 Rc2 Qa7 Bg2+
rqR5/1RB2n2/N1q2NQr/3bbbq1/2N1n1p1/KR2q1P1/2p2b1R/4nBk1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 h4 Ba3 h3 Bc1 axb6 Qb3 b5 Qf3 b4 Qg2 hxg2 Kd1 Kd7 Kc2 Ke6 Kb2 Ke5 h4 Kd4 a4 g5 e4 b5 e5 c5 a5 f5 e6 f3 d3 f4 e7 f2 e8R g4 a6 b3 h5 c3+ Ka3 b4+ Ka4 c4 a7 b2 h6 f3 h7 b3 Re1 c2 Rh5 c3 Re3 Nf6 Rh1 Ne4 Nh3 g1B Ra3 Nd7 Bd2 c1N Re2 c2 Bh6 Qg5 Bg2 f1Q Nd2 b1B Nf4 b2 Nd5 f2 Nf6 Ne5 Rb3 Bg7 Rh2 Ba2 Ka3 b1Q Nc4 Qe1 Bf1 Nf7 Rb7 Qed2 Re3 Bf5 Rf3 Qge3 Bf4 Qb6 Bc7 Qc6 Ne8 Be5 Nf6 Rhe8 h8R Re6 Rhb8 Qg5 Rc8 Qde3 Nb2 Bd5 Nc4 Kc3 d4 Nd3 Rh3 Ne1 Rh2 Rb8 a8N Rd6 Bh3 f1Q Bg2 Qfd3 Bf1 Qef4 Re3 Bf2 Rf3 Bde6 d5 Kd4+ Kb2 Qe2 Rfb3 Qed2 Ka3 Qde3 Nab6 Ra8+ Na4 Rd8 d6 Rh8 d7 Rh6 d8Q+ Bd5 Rh5 Qg8 Rh2 Qfg5 Ba5 Qf8+ Nc5 Qfd6 Qg8 Qb8 Bh3 Bfe6 Na6 Bf5 Bc3+ Kd3 Ba5+ Ke2 Bc7 Kf3 Qg6 Ke2 Rg2 Kf1 Rh2+ Kg1 Bf1
r3q1r1/r5q1/1nQ3b1/n3k1rq/pp1N4/1n1NBR1B/BRKPRb2/q2R4 b - - 0 1 illegal: No possible last move, all moves rejected
1R1q2rB/6r1/3N1R2/QnR2K1P/B3Bp2/k1bpNq2/brb2Rn1/n2rb3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 d5 c4 f5 h5 b5 e5 g5 e6 d3 e7 b3 e8R Kb4 c5 g3+ Kf3 b2 c6 g4+ Kg2 d4 a5 d2 a6 d3 a7 Nd7 c7 Rb8 a8B Nc5 Nc3 b1B Nf3 Nh6 Qc2 d1R Ne4 Rg8 Bb7 Nb3 Ba8 Be6 c8R Bg7 Bb2 Bc3 Ra7 Na1 Rd7 Bea2 Nh2 f3+ Kg1 g2 Kf2 g1B+ Kg3 f2 Kf4 g3 Nd6 g2 Rcc7 Ng4 Be4 Ne3 Qe2 Bc2 Kf3 f4 Ng4 Bh2 Rg1 Bg3 Qd2 Ka4 Re6 b4 Rf6 b3 Be2 Rb4 Rf1 g1R Rc6 Ng2 Rb7 Rb6 Rc5 Rb5 Ba3 b2 Ne3 b1N Bb2 Na3 Rb8 Rb7 Qe1 Nb5 Qd2 Rbg7 Qe1 Rd2 Bd1 Re2 Bd5 Rh1 Ke4 Rd2 Kf5 Bh4 Rg1 f1Q Be4 Qf3 Rf1 Re2 Qd2 Be1 Rf2 Ba5 Bc3 Ka3 Bd4 Bc3 Be5 Bcb1 Ba4 Rf1 Qd1 Rb2 Qc1 Bc2 Qd2 Bd4 Qa5 Bdc3 Rb7 Bed2 Rb8 Rd1 Rf7 Be1 Bf6 Rh7 Bh8 Rhg7 Rf6
r1R2R2/RNQ1B3/n1rN4/n1q2pr1/1P2b3/2q2q1r/K2N1npk/1Bb1N1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 e4 Kf6 h4 Ke5 b4 g5 c4 d5 Kc2 a5 Kb2 f5 h5 g3 h6 d3 c5 f3 c6 f2 c7 g4 h7 g2 Rh2 d4 Bg5 g3 Ka3 d2 Rh3 d3 Qf3 d1N Ne2 g1N Bc1 d2 Ka2 a3 Nec3 a4 Bb5 f1Q Rh5 Bb7 c8N Qd4 Nb6 Ne7 Bc6 Qc5 Rh1 Nf2 Ncd5 d1R Nc8 Bh6 Bg5 Na6 Nf4 Rc1 Nd6 g2 Qb3 Rhg8 h8R Qd1 Rh5 Qf3 Qc4 Rg6 Bd5 Nc6 Rc8 Na5 Be7 Rg5 Nd2 Rc3 Rf8 Rc8 Bg8 Rc6 Qf7 Ba8 Nb7 Rb3 Qh7 Rc3 Bb3 Re3 Bc2 Rc3 Kb1 a2+ Kb2 Rd3 Rc1 a1R Bb1 Raa3 Rh4 Rd8 Rc3 Rb3+ Ka2 a3 Rh2 Qh5 Rc1 Rh3 Rc4 Qf3 Nd3+ Ke6 Ne1 Ke5 Rc3 Kf4 e5 Kg3 e6 Re8 Bf6 Rec8 e7 Rd8 e8N Rdc8 Ka1 a2 Be7 Rb8 Ned6 Rd8 Kb2 a1Q+ Kc2 Qa3 Rc4 Qae3 Kb2 Qc3+ Ka2 Re8 Bf6 Rd8 Qc7 Rb8 Nd8 Bb7 Be7 Ra8 Rh1 Rb6 Rh2 Be4 N8b7 Rc6 Rh1 Ne2 Rg1 Kh2 Rf1 Nd3 Rf2 Ng1 Re2 Nf2 Re3 Q3d4 Ra3 Qdc3 Rb3 Qb5 Re8 Rgh5 Nf7+ Rd6 Qc8 Nc5 Ra3 Nc6 Nb3 Bc1 Nd2 Rg5 Ra7 Na5 Rf8 Na6 Rc5 Rb6 Nfd6 Qc6 Qb8 Qb5 Rc6 Qbc5 Rcc8 Rc6 Qc7
rRB1Nnb1/1r2kN2/qQ4rB/4bpPb/4n3/qR1B1N2/npK3B1/4br2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 Kd2 b5 g4 h5 e4 f3 a5 f2 g5 c3+ Kd3 c4+ Kc2 h3 d5 h2 d6 h4 e5 h3 a6 Qb6 a7 Be6 d7+ Ke7 d8N Bg7 Ra6 Rh6 Be3 b3+ Kc1 b2+ Kc2 b4 Qc1 b3+ Kd1 c2+ Kd2 c3+ Kd3 Nf6 Bd4 Bg8 e6 Ne4 Qe1 c1B Ra3 c2 Nc3 b1R Nf7 Be5 Nb5 Qa6 Nf3 Nd7 Qa5 Rg6 Qb6 Bd2 Be2 Rb2 Rb1 h1Q Bc3 f1R Bb4+ Ke8 Bf8 h2 Bh6 Nf8 e7 Kd7 e8B+ Ke7 Bd7 Be1 Bc8 c1N+ Ke3 Na2 Nbd6 Qg2 Ne8 h1B Bb5 Qh3 Bd3 Rc2 Rb2 Rc7 Ke2 Rb7 Kd1 Rab8 a8B Qg3 Rh2 b2 Rb3 Bg2 Rh1 Bh3 Kc2 Bg4 Rh3 Bh5 Rh2 Rc7+ Bc6 Rcb7 Rh4 Ra8 Bd5 Nc5 Rhb4 Qh3 Nd2 Qe3 Bg2 Ne4 Nf3 Qc5+ Kd1 Qca5 Kc2 Qa3 Qa7 Rd7 Rb8 Rb7 Qb6
4n1qB/1NrB2n1/QBRb2b1/4pq2/B2k1pq1/P3Rrq1/2b3r1/KN1rN3 b - - 0 1 illegal: No proof kernel
1r6/3qN1B1/2n1n1Pn/2B1R3/1r2bRBK/pBp5/Nr1kbNq1/1nb3bQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 Kd4 b5 f5 d3 a5 b6 c5 e5 h5 g5 a3 b7 h3 e6 c3 g6 h4 e7 c2 e8B c4 Bb5 a4 Kf3 c3 Qe2 h2 Qd1 h3 Qe2 a2 Qe7 a3 Qh4 Bc5 Nd2 Ra4 Qe7 Nh6 Bc6 Rb4 Kf2 f3 Kg3 f2 Bf3 f4+ Kh4 Nc6 b8B Bg4 Bd6 Qd7 Qe1 Rhb8 Ne2+ Ke3 d4 Bh5 Bg4 f3 Rb1 a1N d5 Nb3 Ne4+ Kd3 Bg5 c1B Bf6 Nbd4 Bg7 Ne6 Ra1 Bd4 Bc5 Rb2 Bg2 f1Q d6 f2 B2f3 Qg2 Rf1 h1B Qd1+ Bd2 Nc1+ Ke3 Be2 h2 Na2 Bc1 Bc4 R8b4 Bb3 Rb8 Rg1 f1N Nf2 Nd2 Rf1 Nb1 Qf3+ Kd2 Re1 Qc7 d7 Qd6 d8N Qd7 Re5 Rb4 Nd1 Bg1 Nf2 Rb8 Bf5 Bg4 Qh3 Be2 Bg4 Qgd5 Qf1 Be4 Qg2 h1R+ Qh2 Na7 Nc6 Rb4 Ne7 Nc6 Qh3 Rh2 Bf5 Rg2 Qh1 Rg5 Bg4 Rf5 Qh2 Rf8 Qh1 Rfb8 Bf3 Bf5+ Bg4 Qg2 Qh3 Be4 Nh1 Ke1 Nf2 Bf4 Nd1 Nd2 Rc1 Nb1 Qh1 Bc4 Rc2 Bc1 Rf2 Be2 Rf4 Kd2 Nf2
1qqBrNN1/1b1k3K/4N1pn/1q1B2R1/r1p1qr1P/R5b1/QnrR4/6nR b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 c5 Ke3 e5 a4 b5 d4 c3 f4 c4 h4 g6 a5 g3 a6 g2 d5 c2 f5 b3 d6 b2 f6 b4 a7 b3 f7+ Kd7 Be2 Bb7 Ra3 Nc6 Ra5 Qc8 Bd3 Nb4 Rd5 Nh6 Ne2 g1N Bd2 c1R Nd4 Rc2 Nc3 b1Q Ne6 b2 Qe2 Bg7 Ra5 Re8 Nd5 Bh8 Ne7 Bf6 Kf2 e3+ Kg3 e4 Kf4 Be5+ Kg5 Bg3 Qg2 e2 Ng8 e3 Be4 e1R Bd5 e2 Bc3 Rf8 Bf6 Re8 Bd8 Nd3 Kf6 Rd1 Kg7 e1Q Kh7 Qe4 Qh2 Rf1 Rb5 Rb8 a8R Rf4 Ra3 Ra8 Qf2 Ra4 Ra5 Qbe1 Qe2 b1Q Qg2 Rc3 Qa2 Nb2 Rb5 Rc2 Rc5 Qb4 Rb5 Qc7 Rc5 Kc8 d7+ Kb8 Bf6 Bc6 d8R+ Qc8 Rd7 Qb3 Bd8 Nd3 Rd6 Ba8 Bb7 Qb6 Rd4 Q1b5 Kh8 Nb2 Rg5 Qd6 Bd5 Bb7 Rd2 Qde5+ Kh7 Qec7 Bf6 Qce5 Nd4 Kc7 Bd8+ Kd7 Ne6 Qeb8 f8N+
NQrq4/qk1rnB2/rN1nR1pN/1P2K3/3r3b/1Rn4q/4bp2/2BNn2R b - - 0 1 illegal: No possible last move
n2n2q1/Nk4r1/1N1rp1r1/2Q1b1Pb/K1B2b1q/3rn1RR/N2B1p2/B3b1N1 b - - 0 1 illegal: No proof kernel
3q1B1R/rnnBB1K1/n1p3Pr/Q1R3p1/q2Rb2r/2q3N1/1kN5/1q1r1Bb1 b - - 0 1 illegal: No proof kernel
R7/B3NN1n/P2q1b1r/K6k/b3r3/Rp1n2r1/1NBp1r1n/BqQNq2n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 c4 g5 h4 f5 e4 Kf7 a4 Kg6 c5 d5 a5 g3 e5 f3 c6 b3 e6 b2 a6 d3 Kc3 g2 c7 b4+ Kb3 f4 Ka4 d2 e7 d4 e8N b3 Rh2 d3 Ka5 g4 Nh3 g1R Nd6 f2 Ne4 f3 Neg5 g3 Qe2 d1N Rh1 d2 Nf7 g2 Qe6+ Nf6 Ne5+ Kh5 Ra2 Nh7 Nc4 Be7 Bd3 f1R Ra3 f2 Nc3 b1Q Bc2 Bf6 Bb2 Bd7 Qe1 Ba4 Ng5 Qd6 c8N Nd7 Nf7 Ne5 Ne7 Nd3 Ba1 Rag8 Rh3 Rg3 Nb2 Rh1 Rh2 g1Q Rh3 Re8 Rh2 Ne3 Qc1 Ng4 Rg2 Nh2 Ncd1 Rf3 Rg8 Rg3 Ng6 Re4 Ne7 Rfe1 Ra8 f1N Nc3 R1e2 Ncd1 Kg4 h5 Rf2 h6 Kh5 Rh8 Rgg4 Ra8 Ng3 Ne3 Qe1 Ned1 Nf8 h7 Rg8 h8B Nh7 Rb8 Rg6 Bg7 Rg1 Ra8 Rh6 Bf8 Nh1 Bg7 Rg3 Bh8 Bg5 Bd4 Bf6 Ba7
1R1qN1N1/4B1n1/pNR1b2N/1B1RnnqP/1bn1p3/1kb5/Q2r1b1K/2q1r3 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 b4 Kf7 h4 Ke6 f4 Kd5 Kf2 g5 Kg2 e5 b5 a3 c3 d3 b6 Kc4 b7 d5 f5 g3 h5 a6 f6 a2 f7 d4 Qc2 e3 Qd2 g4 Qe1 e2 Nh3 d2 Ba3 d1N Kg1 g2 Rh2 d3 Bc1 d2 Qf2 Ne7 Na3+ Kb3 c4 e1Q c5 Nbc6 b8N Be6 Nb5 Nb2 Nd7 d1N Bg5 Ne3 Nc7 N3f5 Rc1 a1B Nb6 Nc4 Ne8 Bc3 Qe2 e4 Nf2 N6e5 c6 Rc8 c7 Ng7 Rc2 Rb8 c8N Nef5 Ne7 Qc1 Ng8 Bfb4 f8R Rc8 Rh1 Rc6 Kh2 g1B+ Kg2 g3 Ng4 Bgd4 Be7 Bf2 N4h6 Qg5 Kh3 g2 Kh2 Rd6 Rg1 Rd1 Rd2 Rb1 Rd5 Re1 Rf6 Bf7 Rc6 Be6 Rh1 g1Q+ Kh3 Q1g4+ Kh2 Qc1 Qd2 Qg5 Bd3 Nce3 Bb5 N3c4 Rg1 Qf6 Rg6 Qg5 Rc8 Bd7 Rgc6 Be6 Ng4 Rh6 Rb8 Rf6 N4h6 Rf7 Bf8 Rd7 Be7 Rd6 Rdc5 Rd4 Rd5 Rd3 Qe2 Rd2 Qd1+ Qc2 Qa1 Qc1 Qa2+
R3qR2/1r2kBnp/5rbr/3N1nB1/1qnn1bKP/Q6N/2q2pRB/q4B2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Ke2 e5 h4 b5 g4 f5 d4 c5 a4 c4 d5 e3 Kf3 b4 g5 b3 a5 e2 d6 e1N+ Kf2 f3 Kg3 c2 d7+ Ke7 a6 b2 g6 f4+ Kg4 e4 g7 c3 a7 f2 Nh3 e3 Be2 f1R Qd4 f3 Qd3 Nf6+ Kg3 Ne8 g8R Ng2 Qd1 Nc6 Ng1 Ng7 Na3 b1N Qd5 Nd2 Bb2 c1Q Bd3 c2 Bf5 e2 Qa5 e1Q+ Kh3 Ne3 Rh2 Nd4 Nb1 Qe8 Rg2 Ndc4 Bd3 Nef5 Kg4 Qb4 Nc3 f2 Ra4 Qa1 Nh3 Rb1 Bf1 c1Q Ba3 Rb8 a8B Rb6 Bd5 Qc2 Bf7 Rh6 Bc1 Bb7 Bf4 Be4 d8B+ Kd7 Bd3 Qbb2 Ra3 Ng3 Bfc7 Bd6 Bg5 Bg6 Nd5 N3f5 Bf1 Qbc3 Qc5 Rb7 Ra8 Be5 Qa3 Qb4 Bb8 Bc7 Be6+ Kd6 Rf8 Rg8 Rf7 Rf8 Re7 Rf6 Rf7 Qc5 Rf8 Qb4 Nc3 Ke7 Bf7 Bd8 Bg3 Bc7 Bh2 Bf4 Nd5+
1br2n1K/nk1P2r1/2N2b1R/1R6/1p1q2nB/1pN2BR1/N1Q1rq2/nR1b3r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 b5 Ke5 h5 a4 f5 g4 b3 e4 c3 d4 c2 g5 h3 g6 h2 d5+ Kb7 a5 c5 d6 f3 g7 f2 Qd4 c4 Qb2 h4 Be3 c1B Bc5 f4 Ba3 h3 Qc3 f3 Qd3 Rh7 Qd1 Nc6+ Kd5 Bb2 e5 Bg4 e6 Rc8 e7 Bf6 e8R Na7 Bg2 f1Q Re3 f2 Qc2 Bd1 Rg3 Ne7+ Ke4 c3 g8N Rg7 Bf3 Ng6 Ne2 b4 d7 Qb6 Bc1 Bd6 Ne7 Nf8 Bg5 Bb8 Nc6 Qd4+ Kf5 Re8 Nc1 Re2 Na2 Qg1 Bd5 f1N Bf3 Qg2 Bh4 Qgf2 Qe4 c2 Nbc3 c1R a6+ Kc7 Rb1 Ne3+ Kf4 Nc2 Kf5 Na1 Qc2 Nb5 a7 Kb7 a8R Na7 Rhg1 h1N Re1 Re6 Re5 h2 Rd5 Re2 Rd6 Nc8 Ra5 Na7 Re6 Qe1 Rd5 Nf2 Ra5 h1R Rd5 Bg5 Rh6 Ng4 Rc5 Qef2 Ra5 Ng6 Re5 Bf6 Ke6 Rg8 Kf7 Nf8 Rf5 Rh8 Ra5 Rh7+ Kg8 Rg7+ Kh8 Re8 Qe2 Rc2 Qd3 Rce2 Qc2 Rc8 Rb5+
2q1bnBk/n1pN4/r2NN2R/Bn3QNr/1Rq2bqb/Pp6/8/1Kb1Rn2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 h4 f5 d4 Kf7 Kd2 b5 Kc2 g5 e4 Kg7 h5 f3 d5 f4 d6 f2 e5 g3 d7 f3 e6 g2 a3 g4 e7 g3 e8R c3 Qe2 b3+ Kd1 b4 Bb2 Bd6 Kc1 Ra6 Qe1 Bf4+ Qd2 Nc6 Re5 c2 Re2+ Nf6 Rh4 Na7 Nh3 g1B Nc3 g2 Re6 Nh7 Ng5 Nf8 Bc4 f1N Rh6 Bf2 Bg8 g1Q Rg4 Bh4 Nb5+ Qd4 Bc3 f2 Nd6 Qe8 d8N Bd7 Kb2 c1B+ Kb1 b2 Qd3 Qe6 Qe4 Be8 Qf5 Qc8 Bd2 Rh7 Nde6+ Kh8 Nb7 Bg6 Nbc5 Be8 Nd7 Qc4 Be3 Qe2 Bb6 Qf3 Ba5 Qh3 Rg3 Qg4 Rb3 Bfg3 Rg6 Nd2+ Ka2 f1Q h6 b1N Qc2 Bf4 Nd4 Bb2 Qf5 Qc4 Nde6 Nf1 Rf6 Bc3 Rg6 Bcd2 Kb2 Nc3 Re1 Ncb5 Kb1 Bc1 Rf6 Rg7 h7 Rg6 Rb2 Rh6 Rb3 Rh5 Rh6 Bfd2 Nd4 Kg7 h8N Bf4 Nhf7 Qc5 Nd6 Qc4 Nh7 Kh8 Ne6 Qd5 Rbe3 b3 Re4 Qc6 Rb4 Qc4 Nhg5+
1kn2QB1/2ppr1q1/1N2rq2/KP6/R2Bb1Br/R7/1N2Br1q/bNb3nq b - - 0 1 illegal: No proof kernel
3N1R1r/BP1NR2n/KQb3Nn/6q1/brN2rr1/1Bppn2k/5q2/1bb2R2 b - - 0 1 illegal: No proof kernel
2B3BB/Pk1b1p2/r3R1b1/5q1Q/q1rBq3/2pnnNb1/3r1R1r/3bNNK1 b - - 0 1 illegal: No possible last move, all moves rejected
4R1K1/4rp2/p1r1B3/2B3b1/2n1bb2/1bn2bbQ/nP1N2NR/qRBB1nk1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 h5 g5 e3 d5+ Kb5 f3 c4 a3 h6 f2 h7 a6+ Ka4 g3 Kb3 g4 c5 a2 c6 d3 c7 d4 Kc4 d2 Nh3 g2 Qc2+ Kf3 e4 d1B e5 g1B e6 g3 e7 g2 e8R d3 Nc3 d2 Nb1 Nc6 Bd3 f1N Qb3 Bb7 c8B Qa5 Bdf5+ Be3 Bd3 g1B Re7 Kg2 Bcf5 Nf6 Nf2 Bg5 Be2 Ne4 Nc3 Rc8 Rh5 Nb4+ Kd4 Bfh6 Bd7 Rhe8 h8B Rc6 Rb1 a1N Nd5 Nc3 Ke5 Nba2 Be6 Nc2 Ne4 Bf2 Rh2+ Kg1 Bg7 Ba8 Bf8 Na3 Kf5 Qa4 Nf4 Nc4 Ng2 Bg3 Bg4 B5f4 Kf6 Bhg5+ Kg7 Bf3 Kg8 d1B Nd2 Be4 Qa3 Bb3 Bd1 Qa5 Rc7 Re7 Rc8 Bf3 Rd8 Rcc7 Re8 Bae4 Qd6 Rc6 Qd7 Nb4 Qd3 Qa1 Qd7 Nba2 Qd3 Bd5 Qf5 Bde4 Qh3 Ra7 Bb4 Re7 Bc5+
B1r1n2B/1nB1R1Nn/2kNB2p/1br1qRP1/1Kp1b3/3rnR2/r2Q4/4b1b1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 c5 g4 f5 d4 b5 Kd2 h6 a5 b3 Kc3 h3 e5 f3 d5 f4 g5 b4+ Kd2 b2 d6 h2 a6 c3+ Kd3 b3 Kc4 c2 a7 f2 e6+ Kc6 e7 f3 e8R Bd7 Kc3 c4 Ra5 Qc7 Bg2 f1R Kb4 Na6+ Kc3 Nc5 Re6 Nb7 Rd5 f2 Nh3 Nf6 Nf4 Ne8 Qh5 Rd1 Re7 f1N Re4 Ne3 Rf5 Rd3+ Kb4 Bg7 Ra5 Bd4 Rf1 h1B Na3 b1N Rae5 b2 Qe2 Nc3 Nb5 b1R+ Bb2 c1B Rf3 Bd2 Nh5 Be1 Qd2 Rd1 Ref4 Ne4 Bh3 N4f6 Ng7 Nh7 Be6 Ra1 Rf8 Rc8 a8B Ra2 R8f7 Rf8 Re7 Ba7 Ref5 Qb8 R5f4 Rf5 Bc3 Rc5 Rf5 Kb6 Bf6 Bc6 d7 Qe5 Nd6 Bb5 d8B+ Kc6 R3f4 Be4 Bc7 Rcd5 Rf2 Bd4 R2f3 Rc5 Ba5 Ng4 Bc7 Bg1 Nh5 Ne3 Bh8 Qf4 Ng7 Qg3 Ref7 Qe5 Re7
Nnn5/1k2r1P1/3N1B2/1pK4b/1n3r1R/1q1bp2B/r2b2Rr/b1R1nBQB b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 h5 a4 d5 f4 Kd7 c4 Kc7 g4 b5 a5 e5 g5 b3 a6 b2 c5 e3 Kd3 h3 a7 e2 g6 e1B f5 h2 f6 h4 f7 e4+ Kc2 d3+ Kb3 h3 c6 d2 Nc3 b1B Na4 d4 Nb6 d3 Na4 e3 Qc2 d1N Qc4 d2 Ba3 Bd3 Nc3 Qd5 Rc1 Bg7 Kb4 Rh4 f8R Bg4 Rf5 Bh5 Rf8 Nb2 Rf2 d1R Ne2 Ne7 Nf4 Nc8 Rg2 Bd2 Ne6+ Kb6 c7 Rf4 Qd4+ Kb7 Qc4 Be5 g7 Bf6 Qd4 Qb3+ Kc5 Be5 Ne4 Bf6 Rhg1 h1N Qd8 Nf2 Rh1 Bfc3 Qg5 h2 Bb4 Be5 Bc3 Bf6 Rhg1 h1R Nd6+ Ka6 Rg4 Rh2 R1g2 Be5 Rh4 Bf6 Rc2 Ra1 Rc1 Ra2 Nf8 Be5 Nd7 Bf6 Nb6 Be5 Ndc4 Kb7 Qg3 Nfd1 Bd4 Nc3 Qf2 Nd5 Qg1 Nb4 Bc3 Nc2 Bd4 Ne1 Bc3 Nd1 Ba1 Nc3 Nd6+ Ka6 Bb2 Nd5 Bc3 Nb4 Bb2 N8c6 Ba1 Rb8 a8B Rb7 Bd4 Nb8 Bc3 Ne7 c8B Ka7 Bg4 Nc8 Bh3 Re7 Bf3 Bf6 Na8 Ka6 Rg6 Be5 Bh1 Ka7 Rg2 Ka6 Bb2 Bec3 Ba3 Ba1 Bb2 Ka7 Bf6 Ka6 Nf5 Kb7 Nd6+
8/BN1b4/P1R2nr1/1QB1ppRr/nqq2N1p/1rb1K2B/b4B1q/N1k4n b - - 0 1 illegal: No proof kernel
n4rRR/R1p1Rn1P/b2B3N/3r2qN/1K3pr1/1bQ2p1n/4qq2/1kbB1N2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Kf6 Kd2 Kf5 h4 Ke4 e3 b5 d5 g5 h5 f5 h6 c3+ Kc2 f3 Kb3 c2 h7 g3 a5 g4 a6 g2 a7 f4 d6 g3 d7 Ba6 Qd2 Qg5 d8N Nd7 Qf2 Nb6 Bd2 c1R Ne6 Nh6 Be2 Rg8 Ra4 Rc5 Ra5 Rd5 Rh2 Nf7 Bd1 Kd3 Ne2 g1Q e4 g2 Qe1 Qf2 e5 g1N Nd8 Nh3 e6 Rb8 e7 Na8 e8R Rg7 Kb2 b3 Re7 b4 Ng3 Rg6 Rg2 Rg8 Ka1 b2+ Ka2 b3+ Ka3 Rc8 Bb4 Rg7 Be2+ Kc2 Nd2 b1Q Bd6 b2 Ndf1 Qd1 Qc3+ Kb1 Kb4 Qde1 Bd1 Qee2 Ra2 Rg8 Nh5 Bg7 Ne6 Rcf8 Nd8 Bd4 Ra5 Be3 Rg1 Bc1 Ra4 Nb6 a8R Rg6 Ra7 Na8 Ra2 Qgg3 Ra5 Rg4 Rb5 Qh4 Rb8 Qg5 Rg2 Ka2 Rg3 b1B Rg2 Bc2 Rg3 Ne5 Nf7 Kb1 Nh6 Bb3 Rg1 Rf5 Rg8 Rf8 Rh8 Nf7 Qc4 Rg3 Qc3 Qge5 Rg2 Rgg8 Rg5 Rg7 Rf5 Rg4 Rg5 Qf5 Rg7 Qg5 Rgg8
1b1Qr3/qp1qB2R/2n3n1/7K/pR1r4/BB2b2b/1R1qPN1p/n1k1r1RN b - - 0 1 illegal: No proof kernel
RK3nnQ/4nn1r/2kppn2/BPb1r3/1p6/2B2qNB/R2b1r2/1bN2RR1 b - - 0 1 illegal: No possible last move
6BB/1NKNb1Pp/2Rn2B1/1b3nr1/rb1p1N2/Nk1bp1q1/1r1Q4/1R1b1n2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 g4 Kd5 a4 Kc4 g5 e5 g6 b5 a5 d5 a6 d3+ Ke3 d4+ Kd2 b3 f5 b2 c3 h3 a7 e3+ Ke1 e2 Kf2 e1B+ Kf3 e4+ Kf4 b4 Ke5 b3 f6 h2 f7 Nh6 Ne2 d2 Ra6 Be7 f8N Nf5 Nd7 Rg8 Rb6 Na6 Rc6+ Nc5 Na3+ Kd3 c4 b1R Bg2 b2 Nf4+ Kc3 Kd5 Nb7 c5 Qb6 Bf3 Qa5 Bh5 Nbd6 Qe2 d1B Qd2+ Kb3 Ke5 Rb8 a8B Ra1 Bb7 b1B Ba6 Bd3 Bc4+ Ka4 Bd5 Rg7 Bg8 Qc7 Ne6 Bf1 Qg2 Bb3 Nb1 Qa7 Bg5 Nb5 Rb6 e3 c6 Ba6 c7 Bd3 c8N Qc7+ Nd6 Bd2 Rg1 h1N Rc6 Nhg3 Bf6 Bbc2 Re1 Nf1 Kd5 Rb6 Nb7 Qg3 Nf4 Ra3 Rc1 Bd1 Ke6 Bc3 Qd2 Kb4 Kd5 Ra5 Na3 Ra4 Rc5 Nbd6 Rc7 Rf7 Bh8 Rg7 Rc5 Rb5 Kc6 Rb6+ Kc7 Bac4 Qh2 Bd2 Rb1+ Kc3 Rd5 Rb2 Rc5 Kb3 Rc6 Bc3 Qd2 Bb4 Nd5 Bb5 Nf4+ Rf7 Rc4 Rf6 g7 Rh6 Bhf7 Rh5 Bg6 Rg5 Rc6+
K2B4/2br1ppP/2r1R1n1/b1B5/Brr1b1k1/2qR1pN1/RB3n1N/2n3Qr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 e4 Kf6 h4 a5 b4 c5 d4 c3 e5+ Kf5 d5 f3 Ke3 c4 Kd4 c2 h5 g3 d6 a3 Kd5 g2 h6 a2 h7 a4 d7 c3 e6 a3 e7 Ra6 e8R Qa5+ b5 Nc6 d8B Ne5 Be7 Nf6+ Kc5 Rc6+ Kd4 Ng6 b6 Ne4 b7 Nf2 b8B Kg4 Bd8 Bb7 Be2 Bd6 Ba7 Bc7 Bb2 c1R Nd2 c2 Bb5 Qc3+ Kd5 Ba5 Ne2 g1R Rh2 Rh1 Ba4 Ba8 Rb1 a1R Ng3 a2 Re6 Rc4+ Kd6 Be4 Qg1 Rd1 Rg2 c1N Bc5 Re8 Kd7 Re7+ Kc8 Rb7 Ndf1 Rdd7 Rh2 Rb6 Rg2 Rc6+ Kb8 Rb4+ Ka8 Rc4 Bba3 Bc7 Rb2 Rb1 Rd2 Rbb4 Bb2 a1B Rh2 Qe3 Rd3 Ba5 Bbf6 Be5 Rg2 Bec7 Be5 Nh3 Ra2 Nf2 Bed4 Qe1 Bb2 Qc3 Nh2+
1r1Nq3/B1nP4/b2B1R1b/nbR4p/rrB1p3/2K3pk/4NN1r/rQ3Bn1 b - - 0 1 illegal: No possible last move
5Bb1/1N1b2N1/2nQrrkn/1b1P1N2/p1Rqp3/KBr3bp/R1R1qR2/b7 b - - 0 1 illegal: No proof kernel
1RkB1n1r/2n2q2/3Q4/2p1N1N1/npP1NB2/p3rq1b/3bBRnB/3b2Kn b - - 0 1 illegal: No proof kernel
bBBb3q/2qQ4/1nn1qrr1/1pRr1k2/B1p1p2R/1P6/5NNr/K3N1Br b - - 0 1 legal: proof: h4 d5 e4 f5 c4 fxe4 b3 dxc4 h5 a5 h6 a4 Rh5 a3 Rh1 gxh6 Qf3 h5 Qc3 h4 Qb2 axb2 Kd1 Kd7 Kc2 Ke6 g4 h5 f4 c5 d4 b6 a4 c3 d5+ Kf6 f5 e5 a5 h3 a6 e3 a7 h2 d6 e2 d7 e1R Nd2 b1R Nc4 e4 Bf4 h4 Nf3 h3 Ne3 c4 Ng2 Nc6 Ra5 Be7 Rc5 Red1 Nfe1 Qc7 d8Q Bb7 Qd7 Rf8 a8B Bd8 Bd6 Kg5 f6+ Rd5 f7 Nf6 Bf4+ Kg6 g5 Ra1 Be3 Ra6 Kb1 c2+ Kb2 Rfg8 f8B c1R Bd6 Rh7 Qg4 Nd7 Bg1 Rhh8 Qd1 Kf5 g6 Rf8 g7 Rf6 g8N Rg6 Nf6 Rhh6 Bd4 Rca1 Rg1 h1Q Ng4 h2 Nf2 Rh8 Be2 Rhh6 Rf1 Qg1 B6e5 h1Q Bh5 Rf6 Be8 Rhg6 Qd3 Qh8 Bf4 Qgh2 Rh1 Q2h6 Rh4 Rc1 Bg3 Raa1 Bh2 Rc3 Qd1 Rh3 Bde5 Rc1 Bg1 Rh2 Qd2 Qg8 Ka2 Qhh8 Qd1 Qe6 Qd2 Rc3 Ka1 Rch3 Qd3 Rh1 Qd1 R3h2 Bg3 Ba6 Bb7 Bb5 Be5 Ba6 Bc8 Bb7 Qd3 Ba8 Qd2 Qb7 Bb8 Qc7 Qd3 Nb4 Nd1 Re5 Qd6 Rd5 Rh3 Ne5 Ba4 b5 Nf2 Nbc6 Rh4 Nd7 Qe7 Nb6 Qd7
bKR1n2q/1B4Nn/B2r1BkP/1Q2b3/p2p1RrB/1R3pbq/1N2r1b1/3b4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 Kc4 Kf7 Kd5 a5 h4 d3 b4 a3 c4 a2 e4 f3 e5 f4 h5 a4 b5 d2 h6 g3 b6 f2 b7 f3 c5 g4 c6 g2 e6+ Kg6 e7 g3 Kd6 Ra6 Nh3 g1R Bc4 f1B Na3 g2 Bb2 Nf6 Ng5 Nh7 Qe2 d1B Rb1 a1B Ne6 Bg7 Rh3 Re8 Rh4 Bh8 Bf6 Be5+ Kd5 d6 c7 Bg3 Ng7 Nd7 b8B Bb7+ Ke6 Ba8 c8R Rc6 Rf4 d5+ Bd6 d4 Ba6 Rb6 Nc4 Rc6 Bh4 Ndf6 Rb3 Qd7+ Ke5 Qh3 Nb2 Rb6 Bc7 Rd6 Bb8 Rf8 Qb5 Ne8 Bc7 Rg8 Bd8 Rh1 Rc6 g1Q Rc8 Bg2 Bf6 Rh2 Bb7 Rc6 Kd5 Rd6+ Kc5 Rd7 Kb6 Rd6+ Ka7 Qe3 Kb8 Qe5 Nf5 Kf7 Bh4 Rg4 Ng7+ Kg6 Rf7 Nc7 e8B Qf6 Bec6 Ne8 Ba6 Qe5 Bdg5 Qf6 Bcb7 Qd8 Nh5 Bhe5 Rf5 Qf6 Rf4 Qh8 Bf6 Rh1 Bg7 Re1 Bgf6 Re2 Ng7
4rN2/1b3b2/1n1P1qNK/bB3Q2/q3R1Nk/2B1pB2/1bpb2p1/q1rR2nB b - - 0 1 illegal: No possible last move, all moves rejected
3n3r/bb3b1R/r1BP1nb1/r1N2BKp/5RN1/2B3Q1/q1qp2p1/N3Bb1k b - - 0 1 illegal: No proof kernel
2B1N2k/1B4rq/1Rpbrq2/rb2R1pn/3N4/B3r1pK/n2N3P/1BQ3qr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 Kg2 f5 d4 Kf7 a4 Kg7 e4 b5 e5 b3 e6 c6 a5 b2 a6 g3 e7 b4 e8B c3 a7 b3 d5 c2 d6 Rh7 d7 Qf6 d8N Kh8 Be3 c1Q Bc5 Ba6 Bb5 f3+ Kf1 f4 Be3 f2 Kg2 f1R Bf2 Rg7 Qd4 f3+ Kh3 Re1 Ne2 Bd6 Nd2 b1R Qc3 b2 Bd3 Bb5 Nd4 Na6 Nb7 Re3 Ra5 Nb4 Bd7 Na2 Bc8 Qg1 Qc1 Re6 Be3 f2 Bf5 Ra1 Bb1 f1R Bf2 Rb8 a8B Rfe1 Ra6 R1e5 Rb6 Re3 Bd7 Rbe8 Bc8 Ra3 Be3 Ra5 Bf4 Re3 Be5 Re6 Bf4 Bb8 Bd6 Bc7 Ba3 Bd6 Bh7 b1Q Bd3 Bb8 Nd6 Bc7 Ne8 Bd6 Be2 Qbg6 Bd3 Rb1 Bab7 Qh7+ Kg4 Ne7 Bf5 Nd5 Bg6 Ra1 Bf5 Nf4 Bb1 Nh5 Kh3 Qgf2 Rf1 Qg1 Re1 Re2 Qc3 Qgf2 Bd3 R2e5 Re4 Rh1 Bb1 Qg1 Re3 Re4 Qc1 R4e5 Rd3 Re2 Re3 Re1 Re4 Re3 Re5
3q1B2/r2B2rb/p1r3NN/R1qR1K1Q/3PBprp/3r4/1N3bBb/n3n1k1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 f5+ Ke5 h5 e4 h3 g5 a6 d3 f3 b3 c3 g6 f2 g7 h4 Qd2 h2 Qd1 c2 Bf4 c1Q Bh3 f1R Nc3 a3 Qc2 a2 Qb1 Ne7 g8B Rd1 Nf3 Rh7 Be6 Nd5 Ne2 Rg7 Rf1 h1R Nd2 Nb4 Bg2 Nc2 Nd4 Ra7 Bh6 Rg1 Bd5 Ne1 Nc4 Nd7+ Ke6 c6 e5 Bd6 Nb2 Qcg5 Bge4 Rg4 Rf3 Rd2 Qd1 Bc7 Qe2 Bb7 Rd1 a1B Rh3 Bb6 Bg2 Qe3 Bde4 f4 Nf5 Ba8 Nc4 Bd4 Nb2 Qg1 Rf3 Bf2 Ra1 Bg3 Ra3 Bh2 b4+ Kb5 Rh3 Bf2 Ra5+ Kb6 b5 c5 Qd1 c4 Qf3 Kc5 b6+ Kb4 b7 c3 b8N c2 Rg3 Kc3 Nc6 c1R Nce7 Nc5+ Kf6 Rdd1 e6 Kd2 d4 Nb3 Ke5 Na1 Ng6 Rc6 e7 Qf1 e8B Qc4 Rd5 Qc5 Bd7 Bb7 Qb3 Ke2 Qb5+ Rd3 Rf3 Rf7 Bf8 Rg7 Nh6 Ba8 Kf5 Bb7 Bh1 Kf1 Bg2+ Kg1 Qa5 Rd1 Ra3 Rd3 Qb5 Bc8 Be6 Bd7 Ra5 Be8 Bd7 Bf7 Qb3 Bg8 Qd1 Bh7 Qf3 Rg3 Qh5 Rg4 Ra4 Nf3 Ra2 Ne1 Ra5
1NBKnqr1/1RR5/p7/Bb1Q4/1Np2q1R/4p1bb/Pk2bR1n/rr2N2b b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 Kc5 d5 b4 h5 g4 h3 b5 a6 f3 h2 g5 h4 b6 d4 g6 e3 g7 h3 b7 d2 Qe1 d1Q Be2 d3 Qa5 d2 Na3 Qa4 Qb6 d1B Qb3 Nc6 b8N Nf6 g8R Qf4 Rg3 Nd4 Bc4 e2 Qb1 e1R Rg4 Rg8 Be6 Ne8 Qb4 Be2 Qb7 Ra7 Qc6 Rb7 Rh4 Rb1 Bd2 Bd7 Qb7 Bdb5 Ba5 c6 Bd7 Qc8 Kb6 c5 Bf5 c4 Nc2 e6 Qa8 Bd6 Nb4 Qd8+ Kb7 Qe7+ Kc8 Qf8 Kd8 Rf1 N4c6+ Kd5 Rh7 e5 Rc7 e4 Bc8 e3 Qb7 Qe5 f4 Nf3 f5 Qf4 Nb4+ Kd4 f6 Kc3 f7 Kb2 N4c6 Qf5 Qa8 Bg3 Nb4 Qf4 Qc6 Ne5 Nf3 Ng4 Qd5 Rfc1 Rf1 h1B Rf2 h2 Ne1 Bg2 Rb7 h1B Rc7 Qg7 f8R Nh2 Rff7 Qf8 Rh7 Bf1 Rh4 Bh3 Nf3 Rg1 Ne1 Rd1 Rc1 Rf1 Rc3 Rb1 Rd3 Ra1 Rd4 Rb1 Re4 Ra1 Ree7 Rb1 Rb7 Rg1 Rec7 Ra1 Nec2 Rgb1 Ne1
2Q3B1/qr4p1/1BkqrN2/1pn3p1/n1N2qR1/3N1Pr1/1r1rR1N1/bb4RK b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 d4 fxe4 g5 c5 g6 cxd4 Bb2 hxg6 Bc1 g5 h4 b5 a4 d5 c4 Kd7 h5 e5 a5 d3 c5 b3 f3 d2+ Kf2 e3+ Kg2 b2 h6 e4 a6 e2 a7 e1Q h7 e3 Ra4 e2 Rhh4 d4 Rf4 d3 Kh2 Kc6 Rfb4 Qf6 Re4 Na6 Nh3 Bf5 Qc2 d1R Kh1 d2 Nf4 Rb8 a8N Rb7 Na3 b1R Nc7 Rb2 Ncd5 Be7 Ng2 Qf2 Nc4 e1R Re2 Bd6 Ndf4 Ne7 Nd3 Be5 Qc3 Rd8 h8R Nd5 Ra1 Bd4 Rh4 Nb6 Rg4 Na4 Rb1 Rd6 Qc2 Re6 Ra1 Kd5 c6 N6c5 c7 Kc6 c8N Be4 Qc3 Qf4 N8b6 Bf6 Nd5 Qd4 Nf2 Bb1 Nd3 Be5 Nf6 Qd6 Ng8 Qb8 Nf6 Qa7 Rf2 Re4 Re2 Rd4 Qc2 Re1 Qc3 d1Q Be3 Rdd7 Nc1 Qd6 Nd3 Ne4 Bb6 Nec5 Ra2 Rd1 Re1 Bd4 Be2 Rdd2 Rg1 Rde7 Bd1 Ree2 Bb3 R7e6 Nge3 Rg2 Qc2 Rg3 Ng2 Rd1 Qc3 Rf2 Qc1 Ba1 Re2 Rd2 Ncb2 Re5 Bg8 Re6 Nc4 Rb2 Re3 Rfc2 Re2 Rd2 Nd7 Kd5 Nce5 Na6 Qc8 N6c5 Nc4 Qe7 Qb8 Qed6 Nf6+ Kc6 Qc8+
1B1K1R1Q/5p1r/r7/NbN2p2/1kqP2pn/n1rrb1Nr/B4BR1/4qb1N b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 f5 h5 f6 hxg4 Nc3 exf6 Nb1 f5 Kf2 g3+ Ke3 Ke7 Kf4 Kd6 e4 Kc5 Ke5 g5 a4 b5 h4 c3 h5 b3 d3 c2 a5 g2 h6 b4 a6 b2 a7 b3 h7 g4 d4+ Kb4 Rh4 c5 Nc3 b1B Na4 c4 Nh3 g1R Be3 c1Q Nf2 c3 Nc5 b2 Rh2 c2 Bc4 Qh4 Rg2 Bh6 Kd6 Nc6 Kc7 Na5 e5 Ba6 e6 Bb5 e7 Rh1 e8N Ne7 Nf6 Ng6 Nh5 Rh2 Bd5 Nc4 Qh1 Qf1 Ra5 Na3 Ba2 c1R Ra6 Rd1 Re6 B1d3 Re8 b1R Rf8 Ba6 Kd7 Rb3 Kc7 Qg3+ Kd7 Qe5 Ng3 Qe4 Kc7 Rc3 Kd7 Rh5 Qh2 Bdc4 Nfh1 Bab5+ Kc7 Rd2 Bf2 Qee1 Qh3 Be3 Qh4 Rb8 a8N Rb6 Kd8 Ra6 Nb6 Qfe2 Qf6 Rh3 Qe5 Bd3 Nc4 Nh4 Na5 Rd1 Bb1 Qa2 Qg7 Qe6 Ba2 Bf1 Qh6 Rdd3 Qh5 Rg8 h8B Qc4 Be5 Rg7 Qh8 Rh7 Bb8
1k2Nb1n/4Np1B/b1p1B2R/r1rR3q/q1qQ1p1B/7b/q1BP4/3nqN1K b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 a4 b5 g4 h5 Kg2 c3 e4 h3+ Kh2 h4 g5 c2 e5 b3 g6 c6 e6+ Kc7 e7 b4 e8B b2 a5 b3 g7 Ne7 g8N Nd7 a6 Ng6 a7 Rh5 Ra3 Nb6 Nc3 b1Q Bd7 b2 Bd3 Nd5 Nge2 Ne3 B7f5 Nh8 Qg1 Qd4 Ne4 Qa2 Nef6 b1Q Bh7 Nd1 Ne7 Rc5 Bb2 c1Q Ng3 Qcc4 Nf1 Ba6 Bc2 Qa4 Qg7 Qdc4 Rd3 Kb7 Kg1 h2+ Kg2 Qba1 Rd5 Qc1 Ne8 h3+ Kf3 Qca1 Bf6 Qe5 Bh4 Qe1 Rg1 h1B+ Rg2 h2 Qd4 Rc8 a8B+ Kb8 Bb7 Rc7 Bc8 Ra7 Be6 Ra8 Kg4 Ra7 Rg1 Bg2 Rh1 Bh3+ Kf3 Ra8 Rg1 h1Q+ Rg2 Qh2 Rg6 Bb7 Rh6 Raa5 Bf2 Ba6 Bh4 Qg1 Qd3 Qg5 Qd4 Bg4+ Kg2 Bh3+ Kh2 Qh5 Kh1
5Bbk/N2n1p2/PQq1rbr1/Bnp5/R2Rp1q1/rb3b2/1Kb1N1B1/2R3R1 b - - 0 1 illegal: No proof kernel
3B2q1/1NN1p3/1b6/BPQqpR1K/3bn3/b3pB2/2b1r1B1/kqNbrn1R b - - 0 1 illegal: No proof kernel
1qnbB2b/2bRpkp1/1Q3r2/p2q4/2bNBq1B/n3b1rP/3R4/B1KN3R b - - 0 1 illegal: Other
kb2B1qR/3pQ3/2nPrN1R/1NbpbB2/b1b2B2/rp4n1/7q/3Kn1RB b - - 0 1 legal: proof: f4 a5 g4 e5 d4 exf4 b4 axb4 d5 h5 d6 hxg4 Qd4 c6 Qd5 cxd5 a4 b5 h4 f5 e4 g5 c4 g3 h5 g2 a5 g4 h6 f3 a6 b3 h7 b2 a7 f2+ Ke2 f4 c5 b4 c6 f3+ Kd1 g3 e5 b3 c7 Ba6 c8R Bb5 e6 Ba4 e7 Nh6 Bg5 Nf7 Rh3 Nc6 Ra2 Bg7 Bf4 Be5 Nd2 Ng5 Be2 f1B Be3 f2 Rh2 Nf3 Rh6 Ne1 Bg4 Bc4 Ngf3 f1N Ra1 g1B Ne4 g2 Nd4 Ng3 Bf5 b1Q+ Bc1 Be3 Nb5 g1B Rb8 Rf8 h8Q Qb2 Qh7 Bc5 Bf4 Rf6 Rc8 Qh2 Rc1 Rb8 a8B Re6 Bb7 Ra8 Ba6 Ba7 Qg7 Bgc5 Qg5 Bb8 Nf6+ Kf7 Qh4 Qg8 Rd8 Qg7 Rdh8 Qg8 e8B+ Kf8 Bh5 Ra7 Bf3 Ra8 Bh1 Kf7 Nh7 Ke8 Nf6+ Kd8 Bg6 Ra7 Be8 Ra8 Rc2 Ra7 Rg2 Ra8 Rg1 Ra7 Nc3 Ra8 Bb5 Kc8 Qg5 Kb7 Qg7 Ra5 Qe7 Ka8 Ba6 Bf1 Bd3 Ra7 Bf5 Bc4 Na2 Bab5 Nc3 Ra3 R6h7 Ba4 Nb5 Na5 Rh4 Nc6 R4h6
2R1N1n1/P2nN1N1/r1rb4/3K2Q1/1B2Bpn1/pnR3p1/q1R3kn/1qR1b2b b - - 0 1 illegal: No possible last move
1r1N4/r1bbk3/1r1b1bB1/q1qB1RQn/8/1qp1p1N1/pBRPRn2/2KR4 b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 g4 e5 b4 c5 f4 a5 b5 h5 f5 a3 f6 a4 g5 h3 g6 h4 b6 c3 f7+ Ke7 b7 e3 g7 c2 Rh2 a2 Bc4 e2 Bd5 e4 Nf3 a3 Rf2 h2 Ng1 h1R Rf5 h3 Rh5 h2 Rh4 c4 Rg4 Na6 b8R Nf6 g8B Nc5 Bb2 c1Q Rf4 Ra7 Ra8 Qa5 Rf3 Bd7 Rf5 Nh5 Rc8 Rh6 Rf2 Rb6 Nc3 Qc2 Rc1 a1B Nb5 a2 Bh7 Qb3 Nd6 Rb8 Bg6 Rb6 Ba3 Bf6 Bb2 Rb8 Nb7 c3 Nd8 Rb6 Rf1 Rb8 Rc2 Rb6 Kf2 e1B+ Ke2 Nd3 Qa1 Bf2 Kd1 Bg3 Ne2 Bc7 Ng3 Nf2+ Kc1 e3 Rd1 Rf1 Rb8 h1Q Rb7 Bh6 f8R Bhf4 Rb8 Bfd6 Rh8 Ng7 Rh2 Nh5 Rg2 Qh4 Rc8 Qg5 Ra8 Nh3 Re2 Rf4 Rb8 Rfb4 Ra8 Nf2 Rc8 Bb8 Rc4 Bbc7 Rf4 Rb8 Rf5 R4b6 Qb1 Qba4 Ba1 Qc5 Qb5 Qac4 Bb2 Qb3 Qc4 Qa5 Qg4 Qc5 Rf3 Qe5 Qg5 Qa5 Rf4 Qd4 Rf3 Qdc5 Rf5
rR2qnNN/k4n2/1R5p/1RK1bb2/2BB4/4p1q1/1pRrNP2/qrn1nQ2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 b5 a4 d5 g4 Kd7 c4 Kc7 c5 Kb7 a5 e5 a6+ Ka7 g5 d3 Ke3 b3 g6 d4+ Kd2 e3+ Ke1 d2+ Ke2 h3 Kd3 e4+ Ke2 b2 c6 b4 c7 h2 g7 b3 Ra5 Qe8 Re5 Bd6 Rh5 Bf5 c8R Be5 Rh3 Nh6 g8N Nf7 Rc4 h6 Rh5 Nd7 Rc2 Nf8 Na3 b1R Nc4 b2 Nd6 Rh7 Rc6 Rg7 Rb6 Rg6 Qe1 d1N Bd2 Re6 Bb4 Re7 Bc5 Rd7 Rg5 Nd8 Nf7 Rd5 Nh8 Nf7 Qb4 Rd6 Qb5 d3+ Ke1 d2+ Ke2 Rdd8 Bd4 Rd7 Nh3 Rdd8 Nf4 Rd5 Rhg1 h1Q Rh5 Rdd8 Rgg6 Qg1 Rgc6 Qg6 Rc2 Qg3 Bh3 Bg6 Be6 Bf5 Bc4 Qh4 Kf1 e2+ Kg2 e3 Kf3 e1N+ Ke2 Nd3 Kf3 Nc3 Ne2 Na2 Rg5 Bg4+ Ke4 d1Q Rh5 Bd7+ Kd5 Ne1 Kc5 Nc1 Rg5 Bf5 Rh5 Rab8 Rg5 Qg3 Rh5 Ka8 a7 Bf4 Kb4 Bg4 Nc3 Ra1 Bf1 Ne2 Bg7 Rd2 Bd4 Bd7 Rc5 Bf5 Qd3 Qb1 Rcb5 Nc1 Kc5 Be5 Qc4 Qa2 Qe2 Rb1 Qd1 Nf3 Bc4 Qa1 Qf1 Ne1 Rg6 Rb6 Ne2 Kb7 Rd6 Ka6 a8R+ Kb7 Rba5 Ra6 Rad8 Ra8 Rb5+ Ka7 Rdb6 Qe6 Rc8 Qe8 Rcb8
qq2B1Qb/N2nB3/2rR2bp/K2p3R/NP3b2/2NR1n1q/prk4n/4b2R b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 f4 Kg6 g4 a5 c4 e5 b4 d5 c5 e3+ Kc2 e4 g5 Kf5 g6 a3 Kb3 h6 Ka4 d3 c6 h3 g7 a2 c7 e2 Bb2 e1B Ne2 d2 Bg2 h2 Be5 e3 Bc3 Nd7 Bb2 Bd6 Ng1 e2 Bf3 Ngf6 g8R Ng4 Qb3 d1Q Kb5 a4 Nc3 a3 Rg6 Qc1 Rb1 a1B Na4 a2 Be5 Re8 Bf6 Ra6 Be7 Rc6 Ka5 Qa3 Rd1 Bh8 Rd3 Ba6 Qd1 Qb8 c8N Rf8 Na7 Rg8 Rc3 Bd3 Qa1 Be4 Rd3 Rgc8 Qc1 Rc2 Qa1 R8c6 Qg7 Rb2 Qg8 Bde5 Nh3 Bd6 Nf2 Bde5 Nd1 Bd6 Rg1 h1Q Nc3 Qh3 Rh1 Nh2 Bh5 Bde5 Rd1 Bd3 Rd6 Bb1 Be8 Bc2 Nb1 Ke4 f5 Bf4 f6 Ke3 f7 Bg6 f8R Ke4 Nd2+ Kd3 Rf5 Kc2 Nb1 Bf2 Rff6 e1N Rf5 Nef3 Rh5 Be1 Rd3 Qc3 Qf8 Qe5 Qg8 Qa8 Re6 Qd6 Nbc3 Qdb8 Rd6
r5bN/2Rn1n2/qR1p1b2/1N2pKQ1/RBr2nN1/1BP1p3/3k2qb/3R2rn b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 f4 Ke6 h4 Kf5 a4 e5 h5 b5 c3 g5 h6 e3 Kd3 g3 a5 g4 h7 d6 a6 b3 a7 b2 Rh3 b4 Ra6 b3 Qe2 g2 Qd2 g3 Rh4 Be7 Qf2 Nd7 Bd2 Qa5 Nf3 g1N Rh1 g2 Rc6 Qa6+ Rc4 Bf6 Qh4 Ne2 Qh6 g1B Bc1 Bh2 Na3 b1R Nb5 b2 Rc7 Ra1 Qg7 Nh6 Qg1 Rg8 h8N Nf7 Qg7 Ra4 Qg5+ Ke6 Ke4 Rc4 Bg2 Rg7 Rd1 b1Q+ Rd3 Qba2 Ba3 Qc2 Bb4 Qca2 Rd1 Bb7+ Kd3 Kd5 f5 Bc6 Na3 Ba4 Nb5 Bb3 Bf1 Ng3 Bg2 Nh5 Bh3 Qg2 Bg4 Rc8 a8R Re8 Rb8 Ba2 Rb6 Ra8 Ng1 Rg6 Nh3 Rgg8 Nf2 Nf4+ Kc2 Rg6 Be2 Rg7 Ng4 Ke4 Rbc6 Be7 f6 Rgg8 Rb6 d3+ Kc1 d2+ Kc2 Rg6 Bd3+ Kf3 Be4+ Ke2 Bd5 Rc6 Bb3 Rc4 Ra1 d1N Rb1 Nh6 f7 Bf6 f8R Nf2 Rd1 Nh1 Rfc8 Rg8 Ra7 Nf7 Rcc7 Qab7 Ra5 Qa6 Ra4 Bb1+ Kc1 Bh7 Kb2 Rg6 Kc2 Bg8 Qh4 Rc8 Nf2 Qd5 Qh6 Rg1 Qg5 Qg2 Ng4 Ng6 Rd4 Ke1+ Kd3 Ra8 Rd5 Qf2 Rd4 Nf4+ Ke4 Qg2+ Kf5 Ke2 Rd2+ Ke1 Rd1+ Ke2 Rf1 Kd2 Rd1+
b4n2/1Nb1N2b/3pQ2q/q2p2k1/qR1q1n2/1rPBr3/pB2RK1B/4R1rB b - - 0 1 legal: proof: f4 b5 h4 e5 d4 exf4 a4 bxa4 d5 g5 d6 gxh4 Rh2 cxd6 Rh1 d5 e4 Ke7 b4 Kf6 g4 h5 e5+ Kg5 e6 a5 c3 a3 b5 a2 b6 h3 e7 a4 e8B a3 b7 h4 Qd2 h2 Qc2 h3 Bb2 f3 Be2 f2+ Kf1 Qa5 Bc4 Nf6 Bb5 Bd6 Qb3 Nh5 Nd2 Bc7 Bc6 Nf4 Re1 a1Q Bb5 f5 Bg6 Re8 Rc1 Re3 Re1 a2 Bc4 Qd1 Qb6 Qda4 Ne2 Ra7 Rg1 h1Q Ng3 h2 Nb3 Qe4 Nc5 h1Q Re2 Qh6 Qe6 Qd4 Bd3 Ra6 Be4 Rb6 Bh1 Rb3 Bh7 Ng6 Kg2 f1B+ Kf2 f4 Nf5 f3 Ne7 Nf4 Bd3 Bh3 Rge1 Bf1 Rd2 Be2 Rc2 Bd1 Rce2 Bc2 Bb5 Bh7 Bd3 Na6 b8B Bb7 Bf5 Ba8 Nb7 Nc5 Bd3 Kh4 g5 d6 g6 Nd7 g7 Nf8 Ba7 Kg5 g8R+ N8g6 Rb8 Nf8 Kg1 f2+ Kf1 Nh5 Kg2 f1R Bb6 Rg1+ Kf2 Qe4 Bd4 Qg4 Be5 Qgd4 Bh2 Nf4 Nc5 Qa6 Rb4 Q6a5 Nb7
b3bn1r/1N1N1B1r/1N1ppP2/BrRqB1R1/5n2/qnb1n2k/1p3KN1/6Q1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 h4 Ke6 f4 Kf5 c4 b5 c5 g5 a5 d3 a6 b3 h5 b4 a7 e6 c6 e3 h6 e2 h7 b2 c7 g3 Rh6 Kg4 f5 g2 f6 d2+ Kf2 b3 Ke3 Na6 Qe1 d1N+ Kd3 Ne3 Rh5 Bb4 Rh2 Bb7 c8N Bc3 Nb6 Ne7 Nf3 g1Q Nbd2 Rb8 a8N Ng6 Rh5 Qg3 Ra5 Nf8 Ne4 d6 Qd1 e1N+ Ke2 b1B Nc5 b2 Nh4 Bg6 Nbd7 N1g2 Nab6 Ba8 Nb7 Be8 Rc5 Kh3 Bd2 g4 Rhg5 Qc8 Qe1 Qc6 Qf2 Qd5 Qg1 Bd4 Ba5 Bc3 Rc8 Nc5 Rc7 Qh2 Kf2 Nb3 Bb5 Nf4+ Ng2 Qh1 Rc6 Qc5 Rc8 Qa3 Rcc5 g3+ Kf3 Rg8 h8B Rg7 Bd3 Rh7 Bg7 Rd8 Bg6 Rc8 Rce5 Rc5 Bf7 Rb5 Bh6 Rh8 Qf2 Rh7 Rc5 Qd1+ Qe2 Qd4 Qd1 Rh8 Nh4 g2 Kf2 g1R Ng2 Rh1 Qg1 Qd5 Rf5 Ne2 Bf4 Rh2 Be5 Nf4 Rc8 Kg4 Rc6 R2h7 Rc5 Kh3 Rg5
1rn4b/1q3Q1b/1bpr2N1/N6P/p4NNK/rbp4B/3B2Rq/n1Rn2Rk b - - 0 1 illegal: No possible last move
1bR1n2k/QK3Brb/rNp1N1p1/3n4/1PRB2B1/3qnRBb/1r2p3/5rq1 b - - 0 1 illegal: No proof kernel
3n2bn/1Q5B/qBp1qp1r/b2R3P/1B4n1/BKbR1n2/pRNr1k2/3Nr3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 Kd7 Kd2 Ke6 Kc3 Kd5 b4 Ke4 h4 a5 h5 g5 d5 g3 e3 g4 b5 a3 d6 a2 d7 f6 b6 a4 b7 f3 Ne2 g2 Bb2 g1Q Bh3 a3 Kc2 f2 Qc1 Kf3 e4 f1N e5 c3 e6 g3 e7 g2 e8R Qa7 Rh2 g1N Rh1 Rh6 Be6 Bb4 Bc4 Ba5 Ba6 Ne3+ Kb3 c2 Nd2+ Kf2 Nc4 Ne7 Rb1 a1B Rh3 a2 Ba3 Nbc6 b8B B1c3 Rb2 Ng6 Qb1 c1R Re5 Qe8 d8B Nh8 Rd5 Ng4 Ne3 Qe6 Bd3 Nf3 Bh7 Qa6 Nd4+ Rc2 Bb4 Rd2 Ndc2 Bb7 Bde7 Nd8 Ba7 c6 Bf8 Bc8 Bb6 Bd7 Ba3 Be8 Bfc5 Bf7 Bcb4 Bg8 Rh4 Nge5 Rd4 Ra7 Rd3 Rg7 Qh1 Rg1 Qh3 Ng4 Qg3+ Ke2 Qb8 Re1 Qb7 Kf2 Nd1+
1B3kbr/2q5/1pR1QnB1/1KnnR1P1/3b1pp1/rR1N3B/1NnqR3/br6 b - - 0 1 illegal: No proof kernel
4bnrr/bR1n1qRN/kp4pn/B3BB2/K5PN/5pb1/1bB4r/Q5Nq b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 f5 dxc4 f6 h4 Qb3 exf6 Qd3 f5 Qc3 f4 Qg3 hxg3 Kd1 Kd7 Kc2 Kc6 e4 Kb6 d4 c5 h4 f5 a4 g2 a5+ Ka6 e5 f3 d5 f2 e6 b3+ Kc3 b2 d6 f4 e7 g6 e8N f3 h5 Nd7 h6 Qc7 h7 Nh6 Bd3 f1R Bf4 Rf2 Nd2 b1Q Bf5 Bg7+ Be5 Nf8 Rh2 Bd7 Nf6 Be8 Nb3 Qf7 d7 Rg8 d8B Rb2 Ne2 Qh1 h8Q g1B Nh7 Bf6 Bc7 Bh4 Rb1 Bg3 Nbd4 Ra2 Rb2 Rd8 Kc2 c3 Rh4 B1f2 Ng1 c4 Qg7 Ka7 a6 Ra8 Kc1 c2 Ba5 Rd8 Kd2 c1N Kc3 Nb3 Kb4 c3 Bc2 Nc5 Nf5 Rb8 Rh3 Be3 Nh4 Ncd7 Rb1 Rb2+ Ka4 Bb6 Bf5 c2 Rh2 c1B Rd2 Nf6+ Rd7 Rh2 Rb5 Bb2 Rc7 Ka8 a7 N6d7 Qf6 B6d4 Qa6 Bc5 Rb6 Bcf2 Qf1 Bc5 Qa1 Rh8 Bf6 Qa2+ Kb5 Ne5+ Rd7 Ne6 Ne2 Bf7 Qc1 Rbg8 Qa1 Be8 Ng1 Nf8 Bg7 Qe6 Ka4 Bcf2 Rb5 Be3 Rf7 Ned7 Be5 Bc5 Rg7 Qf7 Rb4 b6 Rc4 Kb7 a8B+ Ka6 Bae4 Bd6 Bc2 Bb8 Rc7 Ba7 Rb7
K3Nb2/b2n1n2/pB3Rb1/2r3Q1/P1qNn1BN/pR2q1N1/Bpr2nk1/7q b - - 0 1 illegal: No proof kernel
K1Br1bB1/2kR3p/1qp3N1/2bp1rRq/7q/2n5/nBQ1PrB1/1b1R1N1r b - - 0 1 illegal: No proof kernel
K3kN2/Nr3qp1/1b1n2pq/1p1b1Bn1/2Nn1N2/2BR1PbQ/5r2/3q1RBq b - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 g4 axb4 g5 f5 g6 fxe4 Bg2 hxg6 Bh3 Bf5 Bf1 Bc8 Ke2 b5 Ke3 c5 h4 e5 d4 b3 a4 b2 h5 c3 a5 c2 f3 c4 a6 c3 a7 Bg4 h6 Bd7 d5 Qf6 d6 Be6 h7 Ne7 Ne2 Bd5 Nf4 Nc8 Na3 b1N Bh3 Nc6 Bd2 c1Q Bf5 c2 Nc4 Nc3 Rf1 Nd4 Ra3 Rb8 a8N Qf7 Nab6 Rb7 Nd7 Qb1 Qe1 Qd1 Qg3 c1Q Qh3 Be7 Nf8 Bd8 Rb3 Bb6 d7+ Kd8 Rb1 Nd6 Rb3 Ke7 d8B+ Ke8 Kf2 e3+ Kg3 Ba7 Bb6 e2 Kg4 Nce4 Rd3 e1B Bc3 Ng5 Bc5 Rg8 h8N e4 Bb6 e3 Bc5 Qe7 Nf7 e2 Nfe5 Bb6 Nc6 Bg3 Na7 e1Q Qh6 Ne2 Qh3 Qf7 Bg1 Nd4 Nh5 Be5 Nf4 Qed2 Kg3 Qh2+ Kg4 Qh1 Kg3 Rh8 Kf2 Qb2+ Ke3 Qbc1+ Nd2 Bb3 Ne2 Rc7 Qg4 Nge6 Qg2 Rh2 Qh3 Nc8 Ke4 Bg3 Ba1 Rf2 Bc3 Nf4 Ke5 Bd5 Nc4 Nfe6+ Nf4 Bh4 Ng2 Qh6 Nf4 Bg3 Na5 Ne7 Kd6 Ng5 Nc4 Ba5 Nc6 Nc8+ Kc5 Rd7 Na7 Re7 Bd2 Nd6 Bc3 Bb4+ Kb6 Ba5+ Ka6 Bd8 Nc6 Bc7 Ka7 Bb6+ Ka8 Rb7 Na7
B1R1n3/1b3P2/3bbRr1/Nqpb2r1/4RRqn/1qQppr2/3BN2K/1k1N4 b - - 0 1 illegal: No proof kernel
5q1r/nn1K1P2/5q1B/pRb1pNq1/3N4/1pq2R1B/Nb1B1Q1n/k1r1Nb2 b - - 0 1 illegal: No proof kernel
Nr6/5pr1/K2pq1R1/1BR2p2/Rq4n1/NR4Pk/2rnbn1B/bN1bQ1n1 b - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 f5 g5 f6 gxh4 Nh3 exf6 Ng1 f5 Kd2 Ke7 Kd3 Kf6 Kc4 b5+ Kb3 h5 a4 d3 c4 h3 e4 d2 c5 Kg5 a5 Kh4 e5 h2 e6 d6 c6 Rh7 e7 Nh6 e8N Bg7 c7 Qe7 a6 Qe6+ Bc4 Nc6 a7 Ba6 c8R Nd4+ Kb2 b3 Ka3 b2 Kb4 Nf3 Ka5 b4 Na3 b1N Nb5 b3 Ra4 b2 Na3 Rb8 a8R Ng4 Bf1 Be2 Ra6 Bd4 Ra7 Rg7 Nc7 Kg3 Rg8 h4 Na8 h3 Rb7 Kh4 Rb3 Kg3 Qc2 d1B Qe4 Nd2 Rc8 b1Q Rc5 Ba1 Qe3 Ba6 Ne2+ Kh4 Bb2 Ng1 Nc3 Bae2 Qe5 Qe4 Ncb1 Qb7 Nc4 Qb4+ Ka6 Ngf3 Rg1 h1N Qe4 h2 Be5 Nf2 Bf4 h1R Bh2 Bd3 Qe1 B3e2 Bf4 Rb5 Nca3 Rh2 Rh1 Ng1 Be5 Rh3 Bh2 Rc3 g3+ Kh5 Bg2 Rc2 Bc6 Rb8+ Bb5 Nf6 Rc6 Kg4 Rc4+ Kh3 Rg4 Ngf3 Rg6 N6g4 Rg1 Nfe4 Rf1 Ng1 Rff3 Nef2 Rfc3 Bd3 Rc4 B3e2 Rc5
q5B1/Q1R2ppr/qNN5/1b4kR/1B3b2/2qRn1p1/N3Prrb/4NqnK b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kf6 a4 c5 d4 b5 h4 c3 a5 f3+ Kh2 c4 d5 c2 d6 f2 d7 c3 h5 b3 a6 b4 h6 b2 a7 b3 h7 Ne7 Bg2 f1R Nd2 b1Q Qe1 b2 Ra3 Rf2 Qf1 Nf5 Ra6+ Kg5 Nb3+ Ne3 Qe1 Qa1 Re6 b1Q Rd6 Nc6 Bd2 c1Q Rd3 c2 Bb4 Qa6 Qd2 Qda5 d8N Nd4 Nc6 Bd7 Qe1 Qcb2 Nc1 Qc3 Na2 c1B Qd1 Rb8 a8N Rb5 Qa4 Bc5 Nb6 Bd6+ Ne5 Bd2 Qa3 Qf1 Nf3+ Kf5 Ne1 Kg5 Rg1 Nf3+ Kh1 Bc1 Nc6 Bh2 Bh3 g3 Bf5 Rg2 Be4 Rf5 Qa4 Qa8 Qa3 Qb5 Qa7 Rf4 Bf5 Qa6 Be4 Nh4 Bf5 Rff2 Bg6 Nf3 Bf5 Rg8 h8R Be8 Rh4 Rh8 Bh7 Bd2 Bg8 Rh7 Nd8 Bb5 Rc4 Nf5 Rc7 Bf4 Nc6 Ne3 Nc2 Qb1 Rc1 Ng1 Ne1 Qe5 Rc4 Qc3 Re4 Qba1 Re6 Qd1 Rh6 Qda1 Nc2 Qf1 Ne1 Qd4 Rh3 Qc3 Rh5+
2kbRn2/QNr1pr2/1brb1RNn/4qp2/3N1p2/N3Pb2/RBq2n2/K1B5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 f5 dxc4 Bh3 g6 g5 gxf5 Bg4 hxg4 Ba3 f4 Bb2 Kd7 Bc1 Ke8 d4 Kd7 Kd2 c5 Kc2 b5 Kb2 f5 h4 b3 a4 g3 h5 c3+ Ka3 c4 h6 b2 Ka2 b4 d5 b3+ Ka3 c2 h7 c3 d6 g2 g6 Nh6 g7 Qa5 g8R Ra6 Qd3 Rc6 Rg6 Bb7 Rg4 Qe5 a5 Bg7 a6 Rf8 h8B Rf7 a7 Kc8 a8N Nd7 Qe3 Nf8 Nf3 g1B Qa7 Bb6 e3 Bd8 Nd4 Rc7 Rh2 Bf3 Rg6 Rc6 Nc7 Bf6 Nd2 b1Q Nce6 b2 Nc4 Bg7 Rf6 Qa2+ Kb4 b1N Na3 Nd2 Ka4 Qb1 Ra2 Ne4 Rg2 Nf2 Rg5 Nd7 Nf8 Rc7 Ng6 Nf8 Bb2 c1B Kb3 Bd2 Rg3 Qd3 Bc1 c2+ Kb2 Ba5 Ka1 Bb6 Rg1 Qe2 Rd1 Rc6 Rd3 Qd2 Rb3 Bc5 Rb7 Bcb6 Rd7 Qd1 Rb7 Rc7 Rb8+ Kd7 Ra8 Qe6 Nc6 Qd3 Bd2 c1R+ Nb1 Rc5 Na3 Qe2 Bc1 Qc2 Rb8 Qee4 Rc8 Rc3 Re6 Be5 Nd4 Rc6 Bf6 Rb7 Rb8 Bdc7 Re8 Bd8 Bg7 Kc8 d7+ Kc7 Bf6 Bd6 Nb3 Qd5 Bfb2 Qe5 Qa6 Kb8 Nd4 Rbc7 Qa5 Rc8 Rf6 B8c7 Qa4 Kb7 d8N+ Kb8 Nb7 Bd8 Qa6 R8c7 Qa5 Kc8 Qa7
2Kb1bq1/1R2pbr1/BB4Qr/N3pr1q/qq5P/n1Bn4/B1N3p1/N4Rk1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 d5 f6 e5 fxe5 d6 cxd6 Qd2 d5 Qd1 d4 Kd2 Kf7 Kd3 Ke6 Kc4 Kf5 Kc5 Ke4 h4 d5 f4 g5 c4 b5 a4 g3 f5 d3 a5 b3 f6 b2 f7 d2 a6 Ke3 a7 Kf2 Ra3 g4 Rh2+ g2 Nf3 d4 Qa4 d1Q Bd2 g3 Nc3 b1R Na2 b4 Kb5 d3 c5 b3 c6 b2 c7 Nc6 Kb6 Na5 Nd4 Qh5 Qc2 Kg1 Bc3 d2 Qg6 d1Q Nc1 Rh6 Ncb3 Nf6 Nc2 Ng4 Nba1 Nf2 Rb3 Be6 Ba6 Nc4+ Kb7 Na3 c8N Nd3 Nd6 Rc1 Rb5 b1Q Nc4 Qb4 Na5 Qdg4 Rb6 Rf1 Rb5 Rc8 a8B Rf5 Rb6 Rc6 Rb5 Qd5 Kb8 Qdb3 Rb7 Rb6 Kc7 Q3a4 Kb8 Ba2 Kc8 Re6 Rb5 Rh7 Bd5 Rg7 Rb7 Rd6 Qg5 Rh6 Qg6 Kf1 Be6 g1B Rg2 Bb6 Rf2+ Kg1 Bec4 g2 Bd5 Rgh7 Bb3 Bg7 f8B Bd8 Bbc4 Bf6 Bg8 Bf7 Bg7 Bg5 Bf6 Bc1 Bg5 Rg7 Be3 Qgg5 Qd6 Qgg6 Bb6 Qh7 Qg6 Qh8 Bh7 Qg8 Rb8 Nf4 Ba7 Rg5 Qd6 Rf6 Nd4 R7g6 Bb6 Re6 Rb7 Rgf6 Bhd3 Rff5 Bb1 Nd3 Ba2 Rgg6 Re2 Bh6 Rf2 Bf8 Ndc2 Rg7 Qc6 Rh6 Qe8 Bc4 Qg6 Bf7 Rf1+
3Kb3/r3pN1P/8/2p1b1rk/p1RB1bnn/N7/qBbR1qQq/2rR1B1B b - - 0 1 illegal: No proof kernel
q3Bb2/2K1p1p1/RP2NB1r/nk2Q1rN/q4R1b/q3n1p1/3qN1R1/1N3b1r b - - 0 1 illegal: No possible last move
1k2R1BQ/3p1R1R/1pbKPq1p/b3Nrb1/NBr2nb1/Rn6/1n6/2N1qq2 b - - 0 1 illegal: No proof kernel
2KQn2r/pRRB1r1b/1qr1p3/n4k1P/b3N2N/3N1p1n/qB3b2/4B1bN b - - 0 1 illegal: No proof kernel
B2r1bbr/Q1q1BnN1/1r3pPR/3r2p1/p3B3/R1kN4/rr1n3R/1R4nK b - - 0 1 illegal: No possible last move
1b1nn3/Bk6/brp1N1bp/3Nn1RP/B1B5/r4bR1/2RKpR2/q4bbQ b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 a4 Kd7 d4 Kc6 g4 e5 h4 f5 g5 b5 a5 e3 g6 h6 a6 b4 h5 f3 a7 e4 d5+ Kb7 d6 f4 g7 f2+ Ke2 b3 d7 b2 Nd2 b1B Ba3 c2 Nb3 c1B Nh3 Nc6 Qc2 f3+ Kd1 Qf6 d8R Bg4 Rd2 Bc5 Rd7 Nd8 Be2 f1B Rh2 f2 Rd5 c6 Nd4 Bf3 Ne6 Qe5 Qd2 Nf6 g8B Ne8 Ra2 Qa1 Rg5 Bd6 Bb4 Bb8 Qe1 Bb2 Rhg2 Bd4 Nhf4 Bc5 Kc1 Bb6 Bd3 e2 Rc2 e3 Bb5 Bc5 Qd1 e1N Ba4 Ba6 Nd5 f1B R2g3 e2 Kd2 Bg1 Bc5 Nd3 Qe1 Ne5 Bb6 Bc7 Bf2 Rb8 a8R Rh7 Ba7 Rh8 Rc5 Bg6 Rc2 Rh7 Qf2 Rf7 Qh2 Rf4 Qh4 Rb4 Qh3 Rb3 Qh1 Ra3 Bh7 Bf7 Bd3 Bg6 Bc4 Ng7 Bd4 Kc8 Ra7 Bfe4 Nb4 Ne8 Nd5 Rb1 Ng7 Bb8 Rf7 Rb5 Rf4 Kb7 Rf2 Bf3 Ba7 Rb6 Ne6
q1b2Nrb/5p1r/3RB3/1RB2Q1P/3BpKbb/pb1k4/nB2N3/1nN1rb2 b - - 0 1 illegal: No possible last move
Bn4n1/5pqb/r2r1rRp/2K3b1/1B1N4/pBQrP1r1/2R1N3/2N1rBkb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 b4 Kg4 b5 Kg3 b6 Kf2 g4 a5 c3 h3 b7 a3 e3 f3 g5 a4 g6 d3 g7 d2 Qb3 d1R Ne2 a2 Rg1 h6 Nf4 h2 Rg6 h1B Ba3 Qg5 Bb4 a3 Nd2 Kg1 Rc1 a1R Rc2 d5+ Kb5 f2 c4 d4+ c5 d3 Qc3 Bh3 Nb3 d2 Nc1 Bf5 c6 Be7 c7 Ra6 c8B Re1 Be6 d1R Bb3 Rd3 Kc4 Qg3 Kb5 Bg5 Kc5 Qg2 Rd6 Bh7 Rg6 Nc6 b8N Rd6 Nd7 Nb8 Ne5 Red1 Nc6 R1d3 Nd4 Qg4 Na2 Re1 Nc1 Qg3 Bg2 f1R Bb7 Ne7 Ba8 Rhd8 g8B Rf6 Bg2 Rf3 Bf1 Rdd6 Rg7 Be4 Bh7 Ng8 Bf5 Qg4 Rg6 Rg3 Bc8 Bf5 Bb7 Bfe4 Ba8 Bf5 Rg7 Bh7 Rg6 Qc8+ Kb5 Qf8 Kc5 Qg7 Nfe2+
1NRBn3/K2Qq3/2p1b2r/bN1r1rb1/2p2B1b/3n2bB/r1NB1Pp1/R2k4 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kg6 d4 Kf5 a4 e5 h4 g5 d5 b5 a5 b3 h5 g3 d6 c6 h6 b2 h7 g2 d7 g4 a6 g3 a7 b4 Nd2 b1R Nb3 Qe7 d8B Nf6 Qd4 Kg4 Rh5 Nbd7 Qc5 Ne8 Bd2 Rd1 Nd4 b3 Qd6 b2 Bc3 b1R Qf6 Rb5 Bb4 Nc5 Rf5 Be6 Ra5 Nd3 Ngf3 g1B Bd6 Bh2 Nc2 Bg7 Qf8 Bf6 Nfd4 Bh4 Ra1 Rc5 Nb5 g2 Qf7 B2g3 Be2+ Kh3 Rf3 Kg4 B6c7 Rd5 Bb8 Rf8 h8B Rh1 Bf6 Rh3 Bg5 Rh2 Qh7 Rf5 Bd6 Rh1 Ba3 Rh3 Bc1 Rh1 Bf4 Rh3 Kd2 e3+ Kc3 e4 Bd1 e2 Re3 Nc5 Kb4 Nd3+ Ka5 Rh1 Rf3 e1B+ Ka6 e3 Qf7 e2 Kb6 Qd6 Qd7 Ba5+ Kb7 e1B Be2 Rc8 a8N Qe7 Nac7 Bed2 Na6 Ra8 Nb8 Ra6 Bfc7 Bdg5 B7f4 Bb4 Bd1 Ra2 Be2 Ba5 Ka7 Kh3 Bd1 Kh2 Re3 Kg1 Bg4 Kf1 Rf3 Ke2 Bh3 Kd1 Re3 Rf6 Re5 Rh6 Rf5 Re1 Rf8 Ree5 Bc7 Nf6 Rc8 Ne8 Bd8 Rf5 Bcd2+
3b2r1/1k3N1b/bN2N3/R1n1Kn2/prP4B/3B1rp1/p1r3Bn/nQ1q2RN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 f5 c4 a5 e4 d5 h4 Kd7 b4 Kc7 b5 g3 h5 g2 h6 f3 h7 a3 e5 f4 e6 f2 b6+ Kb7 e7 a2 e8B f3 Bb2 g4 Bc1 g3 Ba3 a4 Nh3 g1R Qd2 Nd7 Qe1 Rb8 Qe2 Nh6 Qe5 Be7 Qe4 Rg2 Rg1 Nc5+ Kc2 d3+ Kc3 d2 Kd4 d1N Bd3 f1N Nc3 f2 Nb5 Rg8 h8N Nh2 Ke5 f1R Nd4 Rc2 Rb1 Rf3 Rb5 Nf5 Nf2 Nde3 Ne6 Qd7 Nf7 Bd8 Qg4 d4 Nh1 Qe7 Ra5 Qd7 Bf1 d3 Qg6 d2 Bg2 d1B Bb4 Ne4 Be7 Nc5 Bh4 Be2 Qh7 Qd1 Qg6 Bd3 Qh7 Bd7 Qg6 Bb5 Bc6+ Kc8 Be4 Ba6 Qh7 Re2 Qg6 Nc2 Qh7 Na1 b7+ Kd7 Qg6 Bb1 Qh7 Rc2 Bd3 Kc6 Qg6 Rc8 b8N+ Kb7 Nd7 Rc6 Qg5 Rb6 Qc1 Rb4 Nb6 Rcb2 Be2 Be4 Qb1 Rc2 Nd7 Nh6 Bd3 Bh7 Nb6 Nf5 Qb2 Rg4 Qb3 Rg8 Qb1
n1r2N1b/1RbB1b1K/1qrpp3/1pNr1rk1/1B1n2b1/R2B4/1P3B1R/3n3Q b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 a5 c5 a6 cxd4 Kd2 Qa5+ Ke2 Qxa6+ Ke1 Qa2 Ke2 Kf7 c4 Kf6 f4 h5 g4 b5 c5 a5 c6 d3+ Ke3 d2 c7 a4 f5 a3 Kf4 e3 Rh2 h3 Bd3 d6 Nc3 e2 Rh1 e1B Qa4 d1N Qb4 h4 Ke4 h2 Bf4 h3 Nge2 Nc6 Qb3 Nd4 Qd5 Bg7 Bd2 Ra6 Nf4 Kg5 Na4 Rc6 Bb4 Rh5 Nc5 Bh8 Ng6 Bh4 Rf1 h1R Nf8 h2 Rf2 Rf1 Rg2 h1B f6+ Rf5 f7 Be6 c8B Qc4 Bd7 a2 Bc2 Qb3 Bd3 Rc8 Qa8 Qa4 Qd5 Qa6 Qc6 Qb6 Qb7 Rf3 Rh2 Bg2 Qa8 Bh3 Qb7 Rf5 Qc6 Be1 Qb7 Kh4 g5 Bc3 g6 Kg5 g7 Bg4 Rc1 Be1 Rc3 a1R Ra3 Rc1 Qa8 Rd5 Qc6 Nh6 Qb7 Nhf5 g8R+ Ng7 Qa8 Kf6 Qb7 Ne8 Rg7 Nc7 Rh7 Na8 Kf4 Rde5 Qh1 Bc4 Rg7 Rd5 Ke4 Be6 Kf4 Rhf5+ Kg4 Bh4 Rh7 Bg5 Kh5 Bh4+ Kh6 Ba2 Na4 R1c6 Nc5 Be1 Rg7 Bf2 Kh7 Bc4 Ng6 Kg5 f8B Be3 Rf7 Bg1 Bg7 Be3 Bb1 Be2 Be4 Bg4 Nf8 Bd2 Bd3 Be1 Rf6 Bf7 Rfh6 e6 Bf6+ Kf4 Bh4 Bc3 Bf2 Kg5 R6h3 Be1 Ra7 Bd2 Rb7 Be1 Ba3 Ba5 Rg3 Qa6 Bb4 Bc7 Bb1 Qa7 Ra3 Qb6 Bd3
b2Q3n/bN4p1/7p/pnB1r1qN/n1B3Nb/1P1r3R/2rR3n/N2KB1bk b - - 0 1 illegal: No proof kernel
r1bN1k2/2R1p2B/4r2b/1Pp2KRN/2r1rN1b/B2p2Q1/B1nnqN2/n5n1 b - - 0 1 illegal: No proof kernel
4B3/2Rnp1pP/R1n3nr/p4nRR/2r2B2/3Q4/KbbNbkrq/2Nb3N b - - 0 1 illegal: Other
1N6/Npp2NP1/1R4B1/Kbn5/R2qn2n/rQRnp2N/1r1r3B/3kbbb1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 Kd2 Kf6 f4 Kf5 a4 e5 d5 h5 g3 b3 Kc3 h3 d6 h4 Kb4 b2 a5 c3 a6 e3 g4+ Ke4 g5 h2 a7 h3 g6 c2 g7 e2 f5 e1B+ Nd2+ Ke3 f6 b1R+ Bb2 c1N f7 e4 Ne2 Nh6 Bg2 Na6+ Ka5 Nd3 d7 Nf5 Be5 Rb2 Rc1 Nac5 Nd4 Nh4 Nc6 Bd6 Qb3 Ke2 f8N e3 Rg1 h1B Be4 h2 Bg6 Bg2 Rc3 h1N Ne4 Bf1 Ng5 Ng3 Nh3 Nge4 Bh2 Bdg3 Rg2+ Bgf2 Rg3 Qf6 d8N Qd4 Nf7 Bg1 Nd7 Rd8 Ndb8 Bd7 Rf3 Be8 Rf6 Rd5 Nb4 Bb5 Rb6 Rg5 N4c6 Rg2 Qa2 Kd1 Qb3+ Rgc2 Nd7 Rf8 a8R Rh8 Raa6 Ra8 Ndb8 Ra7 Qe6 Ra8 Na7 Rd2 Qb3+ Rdc2 Nc8 Bc4 Ra7 Be6 Kb5 Bf5 Ne7 Bd7+ Nec6 Be8 Ra4 Bd7 Rb4 Ra3 Ra4 Be8 Ka5 Bd7 Qc4 Rd2 Na7 Bb5 Qb3+
q2Bn1kB/q2nr2r/2NbB3/3RQ2N/n3n3/P1rb1pp1/5p2/K1Rr1N1B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 f5 c4 Kf7 Kc2 d5 Kb2 g5 e4 b5 h4 g3 c5 d3 e5 g2 c6 d4 h5 f3 a3 f2 h6 b3 c7 b4 h7 d2 Qc2 d1R Ra2 f4 Qf5+ Nf6 Rh2 g4 Be2 g3 Rh6 Ba6 c8N Re1 Rg6 Bd6 Rg5 Nd7 Bf1 Bd3 Ne7 Rc8 Rh5 Rc3 Ra1 Qa8 Nh3 g1Q e6+ Kf8 Qe5 Ne8 Nd2 Re2 Rb1 Re3 Ka1 b2+ Ka2 Re1 Ra1 b1N Nc6 b3+ Kb2 Re4 Bg2 Re1 Nf1 Nd2 Bf3 Ne4 e7+ Kf7 Rb1 Re3 Ka1 b2+ Ka2 Re2 Bh1 Re1 Ra1 b1N Kb2 f3 Bg5 Qh2 Nf4 Qh3 Ka2 Qf5 Qa5 Qc5 Kb2 Qca7 Qe5 Rc4 Bh4 Nbc3 Rc1 Na4+ Ka1 Rc3 Bg5 Bc4 Bf6 d3 Rg5 d2 Nh5 d1R Rf5 Rg8 h8B Rg7 Bg5+ Kg8 Bh4 N8f6 e8B Rh7 Bg5 Bd3 Bf7+ Kf8 Bh4 Ne8 Bd8 Re3 Rg5 Re2 Be6 Re3 Rg7 Re2 Rf7+ Kg8 Rf5+ Rf7 Qf4 Nec5 Bc4 Re7 Be6 Ne4 Rd5 Ndf6 Bh3 Nd7 Qe5 Rh7 Be6+
1br1r2n/q3r2k/b2B4/1B4q1/RPN2pB1/1NRpn1pb/1K4bQ/2R2B1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 b4 d5 e4 a5 c4 f5 Kc2 Kf7 h4 Kg7 c5 d3+ Kb2 f3 h5 f4 h6+ Kh7 e5 g3 c6 g2 e6 d2 c7 d4 e7 a3+ Kb3 a2 e8B d3 Bb5 f2 Be2 f1B Nf3 g1R Rh5 a4+ Kc3 a3 Bc4 g4 Nh2 g3 Qb3 d1B Ng4 Rh1 Ne5 Nf6 Nf7 Ng4 Bb2 Bg2 Ra5 Ba6 c8B Nd7 Nd6 Nde5 Bf1 Qg5 Qc2 Nf7 Nd2 Ne3 Bg4 Re8 Rc1 a1R Bb5 a2 N6c4 Bd6 Ra4 Bb8 Nb3 Rhg8 Qf2 Nh8 Qg1 Bdf3 Qh2 Rb1 Ba1 Bh3 Bb2 Bfg2 Ba1 Kg6 h7 Re7 Bb2 Rc8 Ba1 Nf7 Bb2 a1Q h8R Rce8 Rf8 Nh8 Rf5 Qa2 Rc5 Kh7 Ba1 Qf2 Rc7 Rb2 Rc5 Re2 Rc7 Re1 Rc6 Qg1 Kb2 Rc8 Kb1 Nf5 Na3 R7e6 Be5 Qa7 Rc3 Ree8 Bd6 R1e7 Nc4 Ne3 Kb2
2rQ2nR/7q/3n3B/R2r3B/1pb2N1K/b1k2Nrb/1pp1PrqB/b2RR3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 b3 d4 Nh6 g4 Kd7 a4 Kd6 g5 Kd5 g6 f5 a5 b5 a6 c5 g7 c3 g8R Kc4 a7 h3 d5 b4 d6 h2 d7 f3 Kg3 f2 Ra4 f4+ Kh3 f3 Ra5 Na6 Rg2 Qc7 Qe1 Bg7 Bd2 Ng8 Ra2 h5 Rg3 Rh7 Bf4 h4 Bg5 Rh5 Kg4 h3 Bg2 f1R Bh6 f2 Nf3 Rg1 Bd2 f1R Bc1 Rf2 Ra4 Qb7 Bg5 Nc7 Ra3 Ne8 Nfd2+ Kd4 Bf4 c4 Bf3 Rgg2 Rg1 h1Q Qf1 h2 Bd6 Ra5 Ra2 c2 Kh4 c1B d8B Qe7+ Rg5 c3 Ra1 c2 Bh5 Ba3 Qd1 Bh3 Nc3 Rc8 Re1 Qg1 Bb8 h1B Bh2 Rg3 Nd5 B1g2 Nf4 Bd5 Rb1 Qg2 Nf3+ Kc4 Qd2 Ba1 Rbd1 b2 Qd4+ Kb3 Qb6 Qd7 Re5 Qb7 Bg5 Nd6 Bh6 Bc4 Qd8 Kc3 Rf5 Rd5 Rf8 Qh7 a8R Nf6 Rh8 Ng8 Ra5
N3b1N1/1q2b1K1/5BB1/nk1q4/Rp1b2Bq/4b1r1/p2PR2p/nqBrQ1R1 b - - 0 1 illegal: No proof kernel
K1B1q3/B4R1n/2N2B2/n2pRq2/2nQpbN1/r4P2/b2nrk1p/1R1r1r1B b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 b4 Kd5 f3 e5 g5 h5 c3 a5 b5 h3 b6 h2 b7 d3 Ke3 a3 g6 h4 g7 a4 Qe2 a2 Qg2 a3 Qf2 h3 Qe1 d2 Qf2 d1R Ba6 Nc6 b8B Qe8 Bd2 Nf6 g8R Nh7 Bf1 Bh6+ Rg5 Na5 Ba7 Nc4+ Ke2 e3 Kd3 e2 Bg2 e1Q Ne2 d6 Nd4 Be6 Nc6 Qg1 Rg7 Bf4 Rf7 Rg8 Qb6 Qc5 Re1 h1R Re4 Rhe1 Bh1 Re2 Qb2 Rf1 Be1 h2 Nd2 Rg3 Rb1 Rgg1 Bh4 a1N Bf6 a2 Re3 Nb3 Qa1 Nb6 Nc4 Nd2 Re4 Qa5 Ne3+ Kc5 Qb2 a1N c4 Nab3 Qa1 Qa6 Qa4 Qac8 Qa1 Na5 Qb2 d5 Qc3 Bf5 Qd4+ Kd6 c5+ Ke6 Bb8 Nbc4 Ba7 Rd1 Kc3 Rgf1 Kb4 Bg6 Kb5 Qcd7 Ng4 Kf5 Ka6 Qde6 Be7+ Qf6 Ne3+ Kg5 Bd8 Kh4 Be7 Kg3 Bd8 Qf5 Bf6 Nab3 Kb7 Kf2 Bb6 Ra3 Ba7 Qed7+ Ka8 Qe7 Nb8 Qed7 c6 Nba5 c7 Qe8 c8B Bg3 Rg4 Bf4 Rg5 Qg4 Rc1 Bb1 Nc6 e4 Re5 Ba2 Rb1 Qf5 Ng4+
qB6/RNrN1qnp/P1B4p/7R/2RrR3/5bK1/1rQp1N1r/qkb2qn1 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 h4 cxd4 h5 a5 h6 axb4 Qd2 gxh6 Qd3 Ra7 Qd1 Ra8 Kf2 Ke7 c4 Kd6 g4 Kc5 a4 b5 e4 f5 g5 d5 a5 f3 g6 f4 e5 b3 g7 Kb4 c5 d3 e6 b2 c6 d4 e7 d2 e8N d3 c7 Nd7 Nh3 Ne7 g8R Bb7 c8R Ne5 Nd6 Nf5 Nf7 Ng7 Qe1 Kb3 Na3 b1Q Be2 d1R Rc4 b4 Bd2 Kb2 Rc1 b3 Nc2 Ba3 Kf1 f2 Nd4 Nf3 Kg2 Ng1+ Bf3 f1Q+ Kh2 Ra7 a6 Qa8 Bc6 f3 Qe4 f2 Bf4 d2 Bb8 Qc4 Rf8 f1Q Ne5 Qcf7 Nf2 Qa2 Rc8 Rd8 Nf5 Rd4 Nd7 Re1 Re8 Re2 Rc4 Qab1 Kg3 Qbc1 Ng4 Rh2 Rb1+ Ka2 Nd6 b2 Re5 Qcd1 Rbc1 b1R Qc2+ Rb2 Nf2 Qde1 Re4 Qd1 Bb5 Bc6 Ba4 Rc7 Nb7 Bd5 Bc6 Qde1 Qa4 Qd1 R1c3 Qa1 Rce3 Kb1 Re7 Bf3 R3e4 Ra2 Qd1+ Bc1 Qa4 Rh5 Qb3+ Rb2 Qd1 Rf5 Rh5 Rf4 Qa4 Rh4 Qc2+ Ka2 Nb6 Rc8 Nd6 Rh2 Ra7 Rc7 Nd7 Ne8 Qb3+ Kb1 Nb7 Ng7 Qc2+
q1n2BnK/1b1RqBp1/NrQRN1q1/pP1R4/4nR1p/4N3/n6r/4k1bq b - - 0 1 illegal: No proof kernel
5nB1/1kqP2B1/Q2qBp1N/nb3b2/8/np1r1r1N/RK1p2b1/R1n1RRb1 b - - 0 1 illegal: No possible last move
B2b1B2/1Rp1bn1q/n1q2NRP/8/1N2Rnp1/K1kB1Q1B/p2b1n2/1br1r3 b - - 0 1 illegal: No proof kernel
qk1N1R2/q1pq4/prp5/5bPR/2N1bq1N/1n2BQb1/K1n2NB1/4Rr1b b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 c5 b5 c6 bxa4 Qc2 dxc6 Qb3 Qe7 Qd1 Qd8 e4 Kd7 g4 f5 b4 h5 d4 a3 Kd2 f3 Kc3 f2 Kb3 f4 e5 f3 d5 a2 b5 h3 b6 h2 d6 h4 g5 h3 b7 Nh6 Bd3 f1Q Kb2 f2 Ne2 Na6 b8R Nf5 Qc2 Nc5 Rb5 Nb3 Ka3 Qg1 Be4 f1Q Nd4 Ne3 Qd3 Qf4 Nf5 Rb8 Bg2 Rb6 Nh4 Nc2+ Kb2 Be7 Qf3 Rf8 Nc3 Qge3 Re1 h1B Nd1 h2 Nf2 Qe8 e6+ Kd8 d7 Bd6 Bh3 Bg2 Rb1 h1B Rf5 Qd3 Be3 a6 Qg4 Be4 Qf3 Rf7 Bg2 Qd5 Kc3 a1Q+ Rb2 Qa2 Rbb1 Qa4 Kb2 Qad4+ Ka2 Rb4 Qh3 Qa7 Ng6 Rb6 Nd1 Qg3 Rg1 Rh7 Rf8 Rf7 Qg4 Rf2 Qf3 Qh4 Ra1 Bg3 Rb1 Rf1 Nf2 Qf4 Re1 Ncd4 Bh3 Bg2 Rh1 Nc2 Rh2 Bh1 Bg2 Qd4 Rh5 Rb4 Nh4 Qa8 Qe2 Qda7 Qd1 Rb6 Qf3 Ke7 d8N Kd6 Bd4 Bd7 e7 Bdf5 Bc5+ Kd7 Bd4 Qf7 e8N Kc8 Nd6+ Kb8 Be3 Qd7 Nc4
2n2rr1/Pq1Nr1rp/1QppBBRk/3q1qRN/1K5b/3q1bB1/1B6/2n4R b - - 0 1 illegal: No possible last move
Rr1B4/2K2b2/2bN2qk/1r2p3/qrBN1b2/4RNB1/Ppnppn1Q/1n5B b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Kg6 f4 h5 c4 b5 g5 d5 c5 e5 c6 h3 c7 d3+ Ke3 b3 Qc2 d2 Ba3 d1Q Be7 h2 Bd6 b4 Na3 d4+ Kf2 h4 Qb2 h3 Kg3 d3 Qf2 b2 Bc5 b1N Nb5 d2 Bg2 e3 Nd4 b3 Ngf3 Be6 c8N b2 Nd6 Bf7 Kg4 Na6 f5+ Kh7 g6+ Kh6 g7 e2 f6 Nb4 Kf5 Qa4 Rc1 h1B Rc3 h2 Re3 Nc2 Bb6 Qe7 Bd8 Qee8 Ke4 Bb3 f7 Ra5 Kf5 Be7 f8B Bg5 Bfe7 Nf6 g8B Bf4 Bc4 Qg6+ Ke6 Ng4+ Bf6 Rb5 Kd7 Rf8 Bh4 Rh8 Qg1 Nf2 Bg3 Rg8 Kc7 Re8 Bd3 Bf7 Bc4 Rg8 Bdh4 Rgb8 Bd8 Nc3 Rf1 Nb1 Bh3 Bg2 Bg4 h1R Qh2+ Bh3 Bh5 Bd7 Rg1 Bc6 Rc1 Ne1 Rcc3 Nc2 Ra3 Qb3 Ra8 Qa4 Qg2 Rh4 Qh2 Kh7 Bg4 Kh6 Bh3 Rg4 Bg2+ Qh5 Nb3 Bg5 Bd5 Rgb4 Bc4 Bf4 Nbd4 Bg6 Nh4 Bf7 Bh1 Qg6 Nhf3+
2n4r/RBR1p2Q/q1p1kRNp/pn3r2/1P3n2/qb6/r5RB/1NqNbK2 b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 g4 Kd7 f4 h3 b4 h6 d4 c3 d5 h2 g5 a3 g6 c6 f5 a2 g7 c2 d6 e3 f6 e2 f7 Nf6 g8N Ne8 Nf3 Bg7 f8R Bc3+ Qd2 Nc7 Nh4 Ke6 d7 Nb5 Rf3 Qa5 d8R Qa6 Ng6 Nd7 Rg1 h1R Nf6 Nb6 Nd5 Rh5 Ne3 Rf5 Rd7 Qa3 Kf2 e1N Qd3 Ng2 Rc7 Nf4 Rg2 Be1+ Kg1 Ba6 Nd1 Nc8 Bb2 c1Q Be5 Nbd6 Be2 Bc4 Kf1 Nb5 Rff2 Bb3 Qc2 Nc3 Ba6 Nb5 Bb7 Nh3 Bh2 Nf4 Qc3 Qa6 Qg7 Qca3 Nd2 Qc1 Qh7 Qca3 Rc1 a1Q Rc5 Q1c1 Nb1 Rd8 Rf3 Rd2 Rd5 Ra2 Rdd7 Qb6 Rff2 a5 Ba6 Rb8 Ra7 Ra8 Bb7 Qa6 Rc7 Nb6 Rd2 Rh8 Rd8 Nc8 Rf8 Re5 Rf7 Rf5 Rf6+
3B2Rq/b1p3n1/2b1q1p1/nNPR1B2/kpQ1B1N1/np3NK1/1r2N2r/4r2q b - - 0 1 legal: proof: f4 h5 e4 a5 g4 hxg4 b4 axb4 e5 d6 Ne2 dxe5 Ng1 exf4 Bh3 f3 Bg2 Qd5 Bf1 Qd8 Kf2 b3 h4 Kd7 d4 Kc6 c4 f5 a3 e5 h5 b5 a4 f4 h6 e4 h7 b4 a5 g3+ Ke1 f2+ Ke2 g2 a6 e3 Kf3 e2 a7 e1Q Ra5 g6 Nd2 Ne7 Qc2 Qe6 Bd3 f1N Ne2 g1R d5+ Kb6 d6 Bd7 Kf2 f3 Rd5 Nbc6 Bb2 Bh6 Bf6 Nf5 Bg5 Be8 d7 Ng7 Bf5 Ne3 Qc3 Ra1 Kg3 f2 Nf3 f1Q Bf6 Qb8 d8N Nc2 Nf7 Be3 Nd6 Re1 Nb5 Ka5 Rh4 Bb6 c5 Qh1 Qc4 Qbc8 Rd8 Qb8 Rhd4 Bd7 Rf8 Qbe8 Rd5 Rd8 Rd6 Na3 a8B Ka4 Bg5 Na5 Bae4 Ba7 Bf6 Rg8 h8N Bc6 Nf7 Rh8 N7e5 Rh2 Ng4 Rd7 Rd1 Rd2 Bd8 Rb2 Rh8 Q8g8 Rd5 Qh7 Re8 Qh8 Rg8
krN1Q3/1p3RK1/2Np4/b4BR1/pBn4q/qn4Rp/1N1rnP1R/qb4b1 b - - 0 1 illegal: No proof kernel
KNnrbQn1/6nB/3R1N2/RP4r1/b1nB1p2/1R1p2q1/2p1p2B/1R1n1kb1 b - - 0 1 illegal: No proof kernel
B5K1/6RB/1p1p3q/N1QrRN2/n2PrpN1/k3N1rp/2n2nbB/bn1n4 b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kb4 a4 h5 g4 c5 e4 c2 g5 h3 a5 h4 e5 h2 e6 h3 a6 d6 g6 b6 d3 f3 a7 c4 g7 c3 Bh6 c1N Ra2 c2 Bg5 f2 Qh5 Qf6+ Ke4 Ne2 Kd5 c1R e7 Nd7 e8N Rc3 Ra5 Nh6 g8B Ng4 Ng7 Qh6 Nf5 Nd4 Bh7 Nc2 Bg2 f1N Nd2 Bg7 Bf4 Nc5 Ngf3 Na4 Nc4 Nd2 Nfe5 Re8 Rg1 h1N Bh2 Ngf2 Ng4 Nd1 Rc5 f6 Na5 Nhf2 Be4 Ka3 Rb5 Rb8 a8N Nb1 Nc7 Ra8 Bg2 Re1 Be4 Ba6 Ke6 Bb7 Kf7 Ra6 Bg2 Re4 Re5 Rc5 Kg8 Rd5 Ne6 Bh8 Nfe3 f5 Ng7 f4 Ngf5 Ba8 Re6 Ba1 d4 Ra7 Re5 Rc7 Qf7 Rc3 Qc7 Bb7 Qc6 Ba6 Bh1 Bf1 Rg3 Bg2 Qc5+ Nb4 Nf6 Rb3 Rg7 Rd3 Nfg4 Rb3 Qb5 Nc2 Qc5+ Kb2 Rg5 Bf1 Re7 Ree5 Ng2 Rg3 Qb5+ Ka3 N2e3 Rc5 Ba8 Re4 Re5 Rd5 Rg7 Bg2 Qc5+
2B3bR/n1N3rp/2p5/Bp3bnN/N1r4k/Q2bp1R1/2P3Bb/2qnB1bK b - - 0 1 legal: proof: g4 d5 h4 a5 e4 dxe4 b4 axb4 g5 f6 Nf3 fxg5 Ng1 gxh4 Ba6 h3 Bc4 Nd7 Bf1 Nb8 a4 Kf7 d4 Kg6 f4 e5 Kf2 b5 d5 e3+ Kf3 Kh5 a5 g5 a6 g4+ Kg3 h2 Kg2 b3 f5 b2 f6 e2 a7 e1N+ Kf2 e4 f7 e3+ Kg3 Nd3 Kg2 Kh4 d6 g3 d7 Nf6 Nh3 Rg8 Bd2 Nf2 Qf3 N6e4 Be2 Bd6 f8N Ng5 Ne6 Nc6 Nc3 b1B Be1 Rg7 Nhf4 Nd1 Nh5 Ba2 Rg1 Qh8 d8B h1B+ Kf1 Bc4 Na4 Bd3 Qf8 Bd5 Ra2 Rb8 a8B Na7 Rg2 Bd7 Kg1 Rc8 Kh1 Be5 Bg4 Bd6 Nef4 Bg8 Nd5 B7f5 Bb7 c6 Bf3 Ra8 Bda5 Re8 Rg1 Re4 Bc8 Rc4 Nc7 Bf4 Qa3 Bd6 Rg2 Be5 Rf2 g2+ Kg1 Bde4 Qb3 Rb4 Bb6 Rf7 Ba6 Bd3 Nc3 Rc4 Ra5 Bd6 Na4 Nc8 Qa3 Qa1 Be4 Qc1 Rf3+ Bg3 Bb7 Rd7 Ra8 Na7 Bba5 Bf7 Rh8 Bg8 Bc8 Rg7 Bec3 Be1 Kh2 g1B+ Kh1 Bh2 Rg3 Bf2 Bg2 Bfg1 Be1
4Q3/1nNnq1pB/r1Rp1PpR/1R5p/b1N4r/kNb1B1K1/2b1b2R/1r1b4 b - - 0 1 illegal: No proof kernel
Nbr1N3/1pp1k3/B1b2Nn1/4P1Rp/1rB1r3/2B1p2R/nQrB3r/1q1nK3 b - - 0 1 illegal: No proof kernel
2B1b1R1/prn2pnk/4r1P1/2rrB1n1/R1N2bpQ/N4Br1/K4p1R/1B3q2 b - - 0 1 illegal: No possible last move
4b1K1/7R/1br1BBN1/rkn4r/2N1n1Qn/p1Ppq1R1/Nb1Np2p/2B2b2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 h5 f4 e5 b4 a5 g4 d5 b5 Kd7 g5 d3+ Ke3 h3 b6 Kc6 g6 d4+ Kd2 a3 g7 h2 c3 a4 f5 a2 b7 a3 f6 e3+ Ke1 e2 Kd2 e1N f7 h4 Be2 h3 Bg4 e4 Qc2 e3+ Kd1 e2+ Kd2 Ng2 Nf3 Bd7 Be6 Nf6 g8N Qb6 Ne7+ Kb5 Ng6 Be8 Nfe5 Nbd7 b8N Ra5 Nbc6 Bc5 f8B Rh5 Bg7 Nh4 Nc4 Qa7 Rg1 h1B Rg3 Bg2 Nb4 Bb6 Qd1 Nc5 Qg1 Bf1 Qg2 Ng4 Bf6 Nf2 Qe4 Qe7 Qg4 Qa7 Ke1 Nfe4 Nbd2 Qe7 Rb1 a1B Na2+ Bb2 Ra1 Nd6 Kf2 h2 Rb1 Ng2 Kf3 Nh4+ Kf4 Nde4 Qf5 Qa7 Ke5 Qe7 Bh8 Qg5 Bf6 Qe3 Kd5 Rh8 Qg4 Rh6 Nb3 d2 Ke5 d1R Nbd2 Nf2+ Kd6 Rh5 Ke7 Nfe4 Kf8 d3 Rg1 Bh3 Rg3 Rg1 Kg8 Bf1 Nf4 Rg2 Ng6 Rf2 Bg7 Rf7 Bf6 Rc7 Rg2 Ba7 Qg5 Kc6 Bg4 Ba1 Rb7 Bb6 Rg3 Bb2 Be6 Kb5 Qg4 Rc6 Rh7
KR2nbQ1/B2nrb2/3r1q2/1P3p1k/npRpR2R/1BN5/p1N5/B1brb3 b - - 0 1 illegal: No proof kernel
3N3N/Br1rbB2/Q2p1P1k/2B1N1n1/p3b1Kp/BqR2n2/2brrpR1/4n3 b - - 0 1 illegal: No proof kernel
B2rbn1N/r3k1p1/1Kp2b1R/RB2Pp1Q/2p1bqBn/2B2n2/3r3r/2N1R3 b - - 0 1 illegal: No proof kernel
K1b1N1n1/pNk3R1/pqp1BB1b/n7/1NQ2bB1/R1p2BP1/3b1qrr/1b6 b - - 0 1 illegal: No possible last move, all moves rejected
2B1K2Q/2R4B/3Nn2n/bRpp2b1/4bn1P/2B1Rprk/B1q1pN2/1b4rq b - - 0 1 illegal: No proof kernel
2bK1Q1q/1r1Br1rb/1RN1r1pn/2B4q/1n1bP3/1N2pBpp/NR5N/6k1 b - - 0 1 illegal: No proof kernel
2rBRb2/7b/K1B2p2/1Qq2P1k/3p1b1r/1N1npN1p/1R1q1Rqn/N2b2R1 b - - 0 1 legal: proof: e4 g5 h4 gxh4 b4 a5 d4 axb4 d5 c6 Qg4 cxd5 Qh5 dxe4 Qd1 e3 Ke2 b5 Kd3 e5 f4 d5 g4 h5 c4 b3 a4 b4 g5 b2 a5 h3 g6 f6 a6 h4 c5 e2 c6 e1B a7 h2 c7 b3 g7 Kf7 Bd2 Kg6 Ba5 h3 Nd2 Bg4 c8R b1Q+ Rc2 b2 Nb3 Nc6 Qe2 Rh4 Ra2 Nh6 g8N Kh5 Na1 Qc1 Ne7 b1B Nf5 Rc8 a8R Bg3 Nd4 e4+ Kc3 e3 Rb2 Bf3 Bg2 Ng4 Qb5 Bd1 Ndb3 Nb4+ Kd4 Qc7 Rf2 Bh7 f5 Nd3 Nf3 Bf4 Rg1 h1Q Bb6 Qd7 Bd8 Qh2 Bh1 Qg2 Rb8 Qcc7 Ra8 Nh2 Rb8 Nc5 Kc3 Qcd6 Kb4 Nd3+ Ka5 Qc5 Ka6 Qdd6+ Rb6 d4 Rc6 Qde5 Re6 Qc1 Re7 Qd2 Re8 Qc5 Ne5 Qg4 Bc6 Qg2 Nf3
2Q2rr1/1R1n1qNb/qBKp1b1B/kNR2pr1/nr4R1/5p2/5Ppn/3B1R2 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Qd2 hxg6 Bg2 g5 Qf4 exf4 Bf1 g4 Kd2 g5 Kd3 b5 Ke4 b3 Kd5 g3 h4 g4 e4 b2 a4 d6 c4 Kd7 a5 Kc7 h5 d3 e5 d2 e6 d1N a6 Kb6 e7 f3 e8R g2 h6 g3 h7 b4 a7 b3 Re4 Bg7 Nc3 b1R Rh5 b2 Rg4 Qf8 Nge2 g1R Nf4 Bf6 Be2 Bf5 Ne6 Nh6 Ng7 Nd7 Nb5 Rg8 h8B Bh7 Bf4 Rb8 a8R Qc8 R8a4 Qa6 Rb4 Rbf8 Bg5 g2 Bf4 Rh1 Re5 Rh5 c5+ Kb7 c6+ Kb6 c7 Rg5 c8Q Nc3+ Kc4 Na4 Kd5 Ka5 Bd1 Bd8 Be3 f5 Ba7 Bf6 Rb3 Rc1 Rbb4 Rc4 Rc1 b1Q Re1 Qb6 Rf1 Qa6 Rb3 Rb4 Rc5 Ndb6+ Kc6 Qa2 Re3 Qb3 Re7 Qf7 Rb7 Rd8 Rgc4 Ng4 Rd4 Nh2 Rg4 Qe6 Nh5 Rde8 Bg7 Qf7 Bh6 Ref8 Ng7 Nd7+ Bb6+
q4rNQ/n1rbnk2/n1P5/RR4N1/3bbB2/p1N5/ppB3Bp/q2bKN2 b - - 0 1 illegal: No proof kernel
B2n3Q/nBb1r2p/1b1n1pqB/Rr3R1P/2pN4/1p1R4/q4n1K/1k1N1bB1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Kf2 Kd7 g4 Ke6 Kg2 Ke5 h4 Kd4 a4 c5 g5 e5 a5 b5 h5 e3 d3 e2 a6 e1B a7 f3+ Kh2 f6 g6 c2 g7 b4 Bd2 c1Q Qa4 e4 Nh3 f2 Qd1 c4 Be2 f1N+ Kg1 e3 Ra2 b3 Rb2 Ne7 g8R Bf2+ Kg2 Ng3 Nc3 Ngf5 Na4 Nec6 Ra2 Qb1 Nc5 Nd6 Kh2 Qa5 Rf1 Nd8 Rg3 Nbc6 Bf3 e2 Bh6 Kc3 d4 e1N d5 Nd3 Ne6 Bb6 Nd4 Rb8 a8B Na7 Nf2 Bh3 Ra3 Qa6 Ra5 Kb2 Qe2+ Qc2 Nd1+ Kb1 Bb7 Bg2 Qe8 Nf2 Be4 Rg8 Rd3 Rg7 Bf3 Be7 Qh8 Bc7 Ba8 Rb5 Bb7 Bf8 Ba8 Re7 Be4 Nh3 Rf5 Nf2 Bf3 Bf1 Bg2 Ndc8+ d6 Bb6 d7 Nd6 Ra2 Qa5 Bgb7 Qad2 Ra3 Qg5 Ra4 Qa2 Ra5 Qg6 Bf4 Ne6 d8B Bh6 Bc7 Nd8 Bb8 Ne8 Bbe5 Nd6 Bc1 Bd2 Bf4 Bb4 Bfe3 B4c5 Bh6 Bc7 Bce3 B5b6 Ne2 Nh3 Bg1 Nf2 Nd4
bq6/1k3pKB/Nb1rB3/B1n1RpRQ/r7/2pP3q/B3NpN1/2bnrr2 b - - 0 1 illegal: No proof kernel
3K3B/3nRpP1/Bk3pBq/rR2q3/1nb1b3/pQ5b/N2N1pq1/r1b2NB1 b - - 0 1 illegal: No proof kernel
3q4/qp2b3/rr2k3/R1Nn1b2/NB1qBR2/KBnB3R/p1Ppp1Q1/4rr2 b - - 0 1 illegal: No proof kernel
2N1nBBr/pn5k/8/1BbqNP2/K1B2Nbp/1R4p1/2q2rqp/b1b2Q1R b - - 0 1 illegal: No proof kernel
R1NK4/pR2Rrqr/2bBb2n/1r3p2/pQ2B1P1/k2r1n1p/1NR5/2b1N1q1 b - - 0 1 illegal: No possible last move
Bb4R1/p2Rq1P1/NB6/4QBnp/b1Bb1bnp/r7/r1kp4/q1nR1KN1 b - - 0 1 illegal: No proof kernel
4r1NB/p1R1p3/q1b1P2B/1B1pRBb1/qQn1pR2/7N/1b1k2K1/n1r1r1b1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 e5 h6 Qg4 hxg5 Qg2 g4 Qe4 fxe4 f4 Kf7 Kf2 Kg6 h4 Kf5 c4 g5 b4 d5 c5 d3 b5 d2 e6 d1Q h5 g3+ Kg2 a3 h6 a2 b6 g4 c6 Qd6 b7 Nd7 b8Q Nc5 h7 Nh6 c7 Nb3 Qb7 Qa6 Na3 Nf7 Qb4 Bd7 c8B Bh6 Nb5 Bc6 Nh3 Bg5 Nc7 Re8 h8B Nd6 Bd7 Nc4 Be3 Qd4 Rc1 a1B Rg1 Rec8 Ne8 Bb2 Nf6 Na1 Ng8 Rc7 Be2 Re8 Bf3 Qd1 Bd2 Qda4 Rc2 Kg6 f5+ Kh5 f6 Kh4 Kf1 g2+ Kf2 Kh5 f7 Rcc8 Rh1 g1R f8R Re1 Kg2 Kh4 Bf4 g3 Bg4 Rc7 Bf5 Kh5 Bg6+ Kg4 Rf5 Rcc8 Rf1 Rc7 Re5 Rcc8 Kg1 g2 Kf2 g1B+ Kg2 Bh4 Bh6 Bg5 Nf2+ Kf4 Bf5 Ke3 Nh3 Rc7 Rc3+ Kd2 Rf4 Bb7 Bb5 Bc6 Rc1+ Kd3 B8g7 Ba8 Bc6 Na3 Qd6 Kd2 Bb5 Rc4 Rc3 Bb7 Bh8 Rc6 Re3 Rcc1 Rc3 Ba8 Rc5 Nc4 Rc7 Bc6 Qb4+
qN1R1QR1/n1KR2r1/1B2r2k/prn5/r1B1Bp2/1p3b2/1r1R1Pp1/2bN1r2 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 cxb4 a4 bxa4 g5 d5 g6 dxe4 Bc4 hxg6 Bd3 g5 Bf1 g4 Ke2 e5 Ke3 g5 c4 f5 d4 Kf7 h4 Kg7 c5 a5 d5 g3 h5 g4 c6 a3 d6 g2 d7 g3 c7 a2 Qd3 f4+ Ke2 e3 Kf3 e4+ Kg4 e2 Kf5 e1R Ke5 e3 Qc4 e2 Be3 Kh6 Nf3 g1R Qf7 Na6 Bb6 Nc5 Nc3 Bb7 c8B Rb8 Nd4 Bf3 Nc6 Ne7 Bb7 Nc8 Rd1 a1R Rd2 Na7 Nd1 Ra4 Qf5 Bg7+ Kd6 Bb2 Ba8 Rb7 Nb8 Bc1 Rh4 Rg8 Qf8+ Rg7 Rh2 Qe8 d8R b3 Rd7 g2 Rh4 Rc7 Be4 Rb7 Rg4 Qd8 Bc7 Rb5 Bb6 Qe8 Kc7 Rh1 Na6 Qa8 Nb8 Rh4 Rg5 Rg4 Rgd5 Rg6 R5d3 Re6 Rd4 Kg5 h6 Kh5 h7 Kh6 Ne3 Rd1 Rd6 e1R Bc4 Rf1 h8R+ Kg5 Rg8 Kh6 R6d4 Rde1 Nd1 Re2 R2d3 Rb2 Rd2 Rc2 Rf7 Rca2 Rd8 Rb2 Rfd7
2nq1BNb/1prRp2r/2k5/Nn3bQ1/1n2NR1p/2b3P1/5pBK/N1bn2B1 b - - 0 1 illegal: No proof kernel
5RB1/KNb2N2/pQ1r4/Bp2pnr1/2q1nRNB/Bk5P/2qp1nbp/6b1 b - - 0 1 illegal: No proof kernel
2QNbK2/5B2/pqr2q1R/p1Bp1knN/1b5r/1p1n1pR1/1n1B1P2/1bN2B2 b - - 0 1 legal: proof: g4 e5 b4 h5 d4 exd4 a4 hxg4 a5 c5 a6 cxb4 Ra4 bxa6 Ra1 a5 Kd2 Ke7 Kd3 Kf6 Kc4 d5+ Kb5 g5 e4 d3 h4 g3 c4 g4 h5 b3 c5 d2 e5+ Kf5 c6 g2 c7 a6+ Kb6 g3 h6 Qf6+ e6 Ne7 Kc5 Nd7+ Kd6 Nc5 h7 Nd3 Nc3 Nb2 Na2 Bd7 c8N Be8 Nh3 g1N Na7 g2 Nc6 Nf3 Nf4 g1Q Nh5 Ng5 Nd8 Rc8 Rh2 Qg2 Qc2+ Qe4 Rg2 d1B Rg3 Be2 Qc4 Bd3 Bd2 Qed4 Nc1 Bb1 Ra4 Qe3 Qc3 Rc5 Rh4 Rc4 Rh2 Rh4 Qc6 Qb6 Rh1 Rg8 h8B Rg6 Rhh3 Qe3 Qc8 Nc6+ Kc7 Nb4 e7+ Qee6 Rh1 N4d3 Rh2 Ba4 e8B Bb4 Bg7 Rh6 Bf8 Bd7 Bc5 Ba4 Qb7 Qb6+ Kc8 Qg7 Rhh3 Rc6+ Kd7 Qf6 Qc8 Qh6 Ke7+ Ke5 Ne6 f5 Bc3+ Rd4 Be2 f4 Nf6 f3 Bf1 Kf5 Bd2 Rd6 Bf7 Be8 Rh4 Qh8 Rh6 Rc6 Nh5 Qf6+ Kf8 Rh4 Nd8+
6R1/N1r3pK/1bBNqB1p/r3n1pR/npkPQ3/1N2b2R/nq2N1p1/1b6 b - - 0 1 illegal: No proof kernel
1B1b2K1/NB2r1p1/p1b2p1k/2n4n/N3pqNr/p1Q1r3/P2q2R1/B1R1qB2 b - - 0 1 illegal: No proof kernel
Q1bR1r2/k4p2/qN1p1np1/N1RrR3/5Ppn/q1b2BKB/q4N1p/2r4N b - - 0 1 illegal: No proof kernel
1rR5/qpp1nP2/1b6/NKQ2rNp/2p1n1R1/1Rp1B2B/BR1qq3/2kb1b2 b - - 0 1 illegal: No proof kernel
1Rq3N1/8/1n1p1K2/kr1R3B/R3bNp1/pnP1bp1n/Bb1p1Q2/2B2rnB b - - 0 1 illegal: No proof kernel
b1r2q2/2p2P2/1Bn1p1R1/1pb1nNk1/1n1Q4/1Rp1r3/1RBr1Rp1/1Kn2BN1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 Kf7 h4 Kf6 a4 b5 d4 g5 Kd2 e3+ Kc2 g3 f5 e6 a5 g4 d5 c3 a6 g2 a7 g3 d6 e2 h5 e1R h6 Be7 h7 Bf8 d7 Ne7 Nd2 b3+ Kb1 b2 Rh6+ Kg5 f6 Nbc6 f7 Ng6 Nc4+ Re3 Nd6 Nge5 Qd4 Bb7 Ra3 Rc8 Nf5 Ba8 Rb3 Bc5 Rf6 Rg8 h8R Qf8 d8R Rg7 Rh4 Rh7 Rf4 Rh2 Ka2 b1N Rf2 Na3 Rg6+ Kh5 Rfb2 Nc2 Kb1 N2b4 Bd2 Re2 Be1 Rd2 Bf2 Rh3 Nf3 g1N Rd7 Ne2 Ng1 Bb7 a8B g2 Rd8 Nc1 Rd7 Nb8 Rd8 Bf3 Be4 N8c6 Bc2 Be4 Rd5 Re3 Rd6 Nb8 Ra6 Ba8 Raa2 N8c6 Qd8 Rg3 Bd4 Re3 Qd7 Be7 Bb6 Bc5 Qd4 Ned3 Bd1+ Rde2 Rd2 Nde5 Rac2 Nf3 Rcb2 Nfe5 Rh6+ Kg5 Bc2 Re1 Rf2 Rd1 Rf6 Rd2 Rg6+
b1bb1QNB/1pr2P1r/2p4n/R4rp1/K1NNRN2/3b3p/B1nkB2p/1q6 b - - 0 1 illegal: Other
1Rb2K1b/1nBR1Rr1/1B2q3/2ppn1q1/7p/3p1R2/3pPr1N/1kN1QqqB b - - 0 1 illegal: No proof kernel
1bR1k1q1/1q5R/1b2r1b1/1pN1bpP1/pn2NpNB/1r1BB2B/4p3/n4QK1 b - - 0 1 illegal: No proof kernel
n1r3b1/1Rq1N3/6p1/pn1r2pN/4kBr1/2RqQR1p/r1p1NPB1/R1b2K2 b - - 0 1 illegal: No proof kernel
BNr5/p5N1/r1nR1p2/B4n2/KbNb3q/Q1PpNpkb/pRRp4/6n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 h4 Ke6 b4 Kf5 e4+ Ke5 b5 g5 b6 d5 b7 a3 h5 f6 h6 g3 h7 g4 Rh2 a2 Nc3 g2 Rb1 g3 Nf3+ Kd6 Ne5 g1B Nc4+ Ke6 e5 Kf5 e6 g2 e7 Nh6 e8N Kg5 Qe1 Kg4 Qe7 Rg8 h8R Rg5 Qc5 Kg3 Nd1 Bh3 Qa3+ f3 Rb2 Re5 Ng7 Re6 Bd3 Ra6 Be4 Nf5 c3 Bf2 Kc2 g1N Kb3 Bb4 Re8 Be3 Re6 Qh8 Rhc2 Qh4 Rb6 d3 Bd2 d4 Rd6 Bf2 Bg5 d2 Be3 d3 Bb6 Qg5 Ba5 Bd4 Nde3 Qh4 Bd5 Nc6 Be4 Rc8 b8N Nd8 Ba8 Nc6 Ka4
2rNb1RB/R1q2Nq1/2pr2p1/p3p2N/1Nk2Q2/1n3RbK/1BpnP1p1/6q1 b - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 h5 g5 b5 g6 bxa4 Nh3 h4 Ng1 h3 Bg2 hxg2 Nh3 fxg6 Ng1 g5 Ra2 g4 Ra3 Kd7 Ra1 Ke8 h4 Kd7 f4 Ke6 Kf2 Kd5 Kg3 e5 d4 g6 b4 c6 f5 c3 f6 c2 b5 a3 f7 a2 b6 a6 h5 Qe8 h6 Ba3 f8N Ra7 h7 Qf7 b7 Qc7 Qf1 Nd7 b8R Bc5 Qf4 Kc4 Nh3 Ngf6 Ng5 g1Q+ Kh4 g3 d5+ Ne4 d6 g2 Bb2 Bb4 Nfe6 Be1+ Kh3 Bg3 Nf7 Nc5 d7 Nb3 d8N Bd7 Nc3 Be8 Nd5 a5 Rf1 a1Q Rf3 Qa3 Ng7 Qf8 Nh5 Qg7 Nb4 Ra8 Rb7 Rc8 Ra7 Rg8 h8B Rf8 Nh6 Rf6 Nhf7 Re6 Rh2 Rd6 Rh1 Qf2 Rd1 Qg1 Rd5 Qh6 Rb5 Qg7 Rb8 Bd7+ Ne6 Re8 Qg5 Ned2 Qf5 Re7 Rf8 Re8 Rg8 Rc8 Ned8 Be8 Qf4+
1B2k3/1NpnBp1p/1q3P2/1nNRRK2/1b2pR2/2pN1rRr/Q1b3pp/2b5 b - - 0 1 illegal: Other
4q3/1KP1q1qB/2N1Q3/2q3r1/rbqQ3n/2B5/1b1B1N1n/B1k2RRb b - - 0 1 legal: proof: f4 h5 b4 c5 e4 b5 d4 cxd4 g4 e5 gxh5 exf4 a4 f5 exf5 bxa4 Qd3 a6 Qxa6 a3 b5 Qf6 Qa5 Qg5 Qd8+ Qxd8 Ke2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 d3 c4 a2 b6 d2 h3 d1Q+ Bd2 Qe2 h6 Bb4 b7 Qee8 c5 Nc6 b8B Nf6+ Kd6 Ra4 h7 Qde7+ Kc7 d5+ Kb6 d4 Be5 d3 Nc3 Bb7 Nb5 Nd4 c6 Rg8 h8B Ng4 c7 Nh2 f6 Ndf3 f7 Nh4 Re1 a1B f8Q Bb2 Nd4 g6 Bc3 d2 Nc6 d1Q Qf7 f3 Bg3 f2 Bd3 f1Q Qe6 Qg4 Bb1 Qfc4 Rf1 Qf5 Bge1 Qf2+ Bhd4 Kf4 Bd3 g5 Bh7 Nf5 h4 g4 h5 g3 h6 g2 Nh3+ Kf3 Nd8 g1Q Nc6 Qgg7 Rfg1 Qc2 Nf2 Nh4 Be5 Ke3 Rf1 Qf5 Rhg1 Bc1 Ba1 Bb2 B5c3+ Qfe5 Bf5 Ke2 h7 Ke3 h8Q Ke2 Nh1 Kd1 Bh7 Kc1 Nf2 Q5g5 Na7 Bh1 Nc6 Qgc5+ Kb7 Qgg4 Qd4 Rg5 Qed5 Qgd7 Qg8 Qg7 Qe6 Qde7 Bed2#
bkB3nQ/4Q3/P1n2nqR/2NNpnNr/N2BRn2/b4K2/1r1b4/8 b - - 0 1 legal: proof: c4 c5 d4 cxd4 g4 h5 gxh5 a5 b4 axb4 e4 f5 exf5 e5 c5 Bxc5 Qf3 d5 Qxd5 Bf8 Qe6+ Ne7 Qg8 Nxg8 Ke2 Kd7 a4 Kc7 h4 g5 f4 b5 a5 d3+ Kf3 d2 f6 d1N a6 b3 f5 b2 h6 b4 h5 b3 f7 Ba3 f8N Ne3 h7 Qe8 f6 Qg6 h6 Nf5 f7 Nc6 Bc4 Kb8 Ne6 Bb7 Nc3 b1N Nge2 b2 Nd5 Nc3 Be3 b1N Nc5 Ne4 Nec3 Nef6 N3a4 Nc3 Rae1 Ne2 Bd4 Nf4 Re4 Ra7 f8N Ba8 Nfe6 Rb7 Rh4 Rb2 Bb5 Nce7 Bd7 Nc6 Rh3 Rb1 Bc8 g4+ Kf2 g3+ Kf3 g2 Ng5 g1B Rh2 Nge7 Rh3 Rb2 Rh1 Rd8 h8Q Be3 h7 Bd2 Qg7 Neg8 h8Q Rd7 Qf8 Rh7 Qe7 Rh5 Nge6 Rg5 Rh6 Rh5 Ng5
BQ6/1n2r2N/bBr1n1R1/N2P3R/4KppR/1np2Q1q/2Rr1k2/3n4 b - - 0 1 illegal: No possible last move
1b1n1N1b/8/1Q1NP3/3R2kN/1qn1Q3/n3bRNK/1B3rn1/qn1Bn1q1 b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 e5 d4 exf4 a4 c5 g5 cxd4 Bg2 b5 Bxa8 h6 Bg2 hxg5 Bf1 g4 Nd2 Bb7 Nb1 Bf3 Nxf3 Qg5 Ng1 Qd8 Kf2 Ke7 Kg2 Kf6 h4 g5 e4 d5 c4 f3+ Kh2 b3 h5 f2 a5 d3 a6 d2 h6 d4 a7 g3+ Kh3 g4+ Kg2 b2 a8Q b4 c5 d3 e5+ Kg5 c6 f5 e6 b3 c7 f4 c8N Nf6 h7 Nc6 Rh3 f3+ Kh1 g2+ Kh2 Nh5 Na7 Qd4 Rg3 Nd8 Ra6 Qb4 Nc6 Nf4 Ra3 Bg7 Qb8 Rf8 Ne5 Bh8 Be2 f1Q Nc4 f2 Qe1 d1Q Rf3 d2 Rg3 Nd3 Nc3 b1N Rf3 g3+ Kh3 b2 Ra1 Na3 Rf7 b1N Qd6 Qda4 Rf4 d1N Qb6 N1b2 Nd6 Nbc4 Bd1 Qa8 Qee3 Ne1 Nge2 Qg1 Bb2 f1N Qe4 Nfe3 Nd5 Rf5 Rf1 Rf2 Nf6 Qaa5 Nh5 Qe5 Bc1 Qf6 Ra2 Qa1 Rd2 Bf6 h8N Rf5 Qa5 Qf2 Nb5 g1B Bb3 g2 Bb2 Bh2 Rd5 g1B Bd1 N3g2 Ng6 Bb8 Nf8 Bh8 Nd6 Qd4 Rf4 Qf2 Qc5 Qf1 Qb6 Be3 Neg3 Qg1 Rd4 Rb5 Rf7 Rf5 Rf6 Rf1 Rf3 Rf2 Rd5+
5r2/1kQ3NN/1rb1r3/B3RRbN/1bp3QP/p1q1n1K1/6B1/2rr2nN b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 cxd5 e5 f4 exf4 Qb3 axb4 Qa3 b5 axb5 bxa3 Kf2 Kd7 h4 c5 e4 Kc7 d4 g5 d6+ Kb7 b6 f5 e5 f3 e6 c4 d5 g3+ Ke3 g2 Kf2 f4 d7 g4 d6 Ra6 e7 Nc6 e8Q Nf6 Ne2 g1R Qg6 Nd5 Nd2 Ne3 Ne4 Nd4 Bg2 Rh6 N4g3 Qf6 d8Q Rd1 d7 Bb4 Nh5 Qh8 Qgg5 Re6 Neg3 Ne2 Re1 Qc3 Nh1 Ng1 Bd2 Rc1 Qf5 Rd1 Qd3 Rc1 Qe2 Rd1 Rf1 Rc1 Qd1 g3+ Ke1 Ka8 Ra2 Bc5 Ng7 Qd4 Ne8 Ne2 Ba5 Nf5 Bh3 g2 Rd2 g1B Qc7 Qc3 d8N Bge3 Nf7 Bb4 Bg2 Ng1 Ng5 Bb7 Ng7 Bc6 b7+ Ka7 Rf2 Rb6 Nh7 Ka6 Re2 f2+ Kf1 Ka7 b8N+ Ka8 Rd5 Bd2 Qd8 Kb7 Nd7 Be3 Ndf6 Bd2 Bf3 Be3 Kg2 f1R Qd4 Rfd1 Nfh5 Bd2 Be4 f3+ Kh2 f2 Bg2 f1R Qg4 Bg5 Qc7+ Ka8 Re4 Ne3 Kg3 Rff6 Rf5 Rf8 Qd8+ Ka7 Ree5 Kb7 Qc7+
1RQn3q/1bRP4/1Kpq4/Bb4Q1/B1p3p1/N1N3r1/3Np1rn/3q1kN1 b - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 h5 g4 hxg4 b3 a5 b4 axb4 Bg2 e6 Bf1 Bc5 Bg2 Bd4 Bf1 Ba7 b6 Kf7 bxa7 Ke8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 e3 h4 e2 h5 e1Q d3 b3 h6 b2 h7 g3 f5 g2 f6 Bb7 f7 Qh4+ Qg4 Nf6 f8N Rg8 Na3 b1B h8Q Qh5 Qg7 Qh8 Bd2 Qe7 Qf5 Ng4 Nh7 Nh2 Ba5 Qd7 Nf6 Nc6+ Ke3 Raf8 a8N Nd8 d4 Bd3 d5 Kc5 Rc1 Qd6 Nb6 Rf7 Qh6 Rfg7 Be2 Rg6 Bd1 Be2 Ba4 R8g7 Kf2 Kd4 Ne4 Kd3 Nc3+ Kd2 Qf7 Bd3 Qd7 Bf1 Qc8 Kd3 Ke1 Ke3 Kd1 Kf2 Kd2 Bd3 Rc2 Kf1 Ke3 Be2 Nf3+ g1Q+ Ke4 Kf2 Kd4 Qb1 Ng1 Kf1 Qh4 Bd3 Qg3 Qd1 Qe5 Rh7 Rb2 Rh3 Rc2 Rg3 Qf6+ Qf4+ Kc5 Be2 Qg7 Qd6+ Kb5 e5 Bb3 Ba6+ Ka4 Rg2 Nd7 e4 Nc5 e3 Rb2 Qg3 d6 Bf3 N5e4 Ng4 Rh7 e2 Qh6 Nh2 Nd2+ Ke1 Rg7 Ba8 Kb4 c6 Kc5 Kf2 Rc7 Qf4 d7 Qd6+ Kb6 Rg7 Ba4 Rg8 Nde4+ Kf1 Ka7 Rg6 Rbb7 Bb5 Rb8 Bb7 Kb6 g4 Na2 Rf6 Qg5 Rf3 Nac3 Rfg3 Nd2+
q1B1R1qq/6PR/1r2rkbK/1Q2p2B/2r4p/NB1Q3p/nB3rp1/N7 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 d5 g6 d3 Nd2 d4 Nb1 d2+ Ke2 fxg6 Nh3 g5 Ng1 g4 f4 g5 h4 gxh3 Kf2 d3 Bg2 g4 Bf1 Bh6 Rh2 Nc6 Rh1 Nd4 exd4 Bg5 fxg5 Qa5 Qe1 Qd5 Qd1 Qd8 Ke3 Kf7 Kf4 h5 a4 b5 c4 h4 c5 g3 d5 g2 a5 b3 c6 b2 d6 b4 g6+ Kf6 d7 b3 a6 Rh6 Qe2 d1R a7 d2 Na3 b1R c7 b2 Nf3 e6 g7 Ne7 Ne1 Qg8 Qb5 Nc6 Be2 Nb4 Nec2 Na2 Bh5 Rf1+ Kg4 Rb8 a8B Rb6 Bd5 Rf2 Re1 d1Q+ Re2 Qd2 Bb3 Qa5 Re5 Bb7 c8B Be4 Rg5 Bg6 d8Q+ Kf7 Qd2 Qa8 Qdd3 Kf6 Rd5 Rc6 Rd8 e5 Re8 Qh7 Rh8 Qg8 Rh7 Rb6 Bf4 Rh1 Bc1 b1Q Bb2 Qc1 Rb1 Qd2 Na1 Rc1 Bd4 Rc7 Bb2 Qc2 Rc1 Qcc6 Rc4 Qce8 Rd4 Qh8 Rd8 Qeg8 Re8 Rc4+ Qd4 Bd3 Rf8+ Ke7 Kg5 Rhe6 Qe3 Bf5 Qd3 Bg6 Re8+ Kf7 Kh6 Kf6 Qbd7 Qa5 Qa4 Qa8 Qb5
1k3qn1/3Nnp2/1P5p/B2Q1QrB/K4p2/B1pB2R1/qr2RN2/2r1r1n1 b - - 0 1 legal: proof: b4 e5 c4 g5 a4 d5 f4 exf4 h4 dxc4 b5 gxh4 a5 Ba3 Nxa3 b6 Nb1 Bf5 Nc3 Bb1 Nxb1 bxa5 d4 Kd7 Kd2 Kc8 Kc2 c5 e4 a4 g4 a5 g5 a3 g6 a4 g7 a2 d5 a3 e5 h6 e6 h3 e7 h2 e8Q c3 Kb3 c2 d6 Ra6 d7+ Kb7 Qd5+ Ka7 Qee4 Re6 Qef5 c4+ Ka4 c3 Nf3 Qf8 d8B Rb6 Rg1 h1N Rg3 Nc6 Nbd2 Nce7 Ne5 Kb8 Ne4 Nf2 Bd3 Nh3 Nf2 Ng1 Rb1 a1R Rb2 Rg6 Ba5 a2 b6 Rb1 Be2 Rg5 Bh5 a1Q+ Ra2 Rb5 Ba3 c1R Rb2 Qa2 Re2 Nf6 g8B Rb2 Bh7 Rhg8 Nc4 R8g7 Ne5 Nfg8 Qh3 Re1 Bd3 Rc1 Qf5 R7g6 Neg4 Re6 Nf6 Re5 Rd2 Ree1 Rc2 Qb1 Re2 Qa2 Nd7+
b2QRB2/r7/bP6/r1N3q1/3nB1q1/1BBNbQqr/3bb2R/1K2nk1n b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 g5 h4 f5 b6 d5 c5 b3+ Kb2 f3 c6 g3 c7 g4 h5 g2 h6 g3 h7 f2 Bh6 d3 Qc2 Kd4 e5 d2 e6 d1Q e7 f4 e8B Ke3 Na3 d4 Nh3 g1B Qg6 g2 Bf7 d3 Bc4 d2 Bg5 Ra5 Qb1 Qg4 Rh2 d1B Be7 f3 Nf4 Nf6 Bg8 Nh5 Nh3 Be2 Nf4 Ng3 Bb4 Bb7 c8Q Bh6 Bf8 Nh1 Nb5 Qdg5 Qc7 Ba8 Rh3 Nc6 Qf7 Nd4 Qd1 Ra7 Kb1 b2 Qa4 Kd2 Ra2 Ke1 Nc3 Ba6 Bb5 f1Q Rh2 f2 Ne6 Qd3+ Qc2 f1B Nd1 Qdh3 Qcc7 Qhg3 Bd3 Be3 Nc5 g1N Qf3 Be2 Nf2 Kf1 Qd8 Bd2 Bb3 Be3 Qff6 Ngf3 Be4 Ne1 Qf3 Bd2 Ra5 Be3 Nb7 Bd2 Re5 Be3 Re8 Bd2 Ka2 b1R Nc5 Ra1+ Kb2 Ra5 Kb1 Rg8 h8B Rgg7 Ne6 Rh7 Bf6 Qd5 B6g7 Bhe3 Nc5 Rh3 Bf6 Qdg5 Bh8 Nc6 Bc3 Nd4 Nfd3+
q2rk1br/1r2QN2/1Q3QbQ/4b2N/q2R1qr1/n1P1r2r/n1BKR3/B7 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 g4 f5 e4 h5 b6 d5 g5 b3 c3 f3 e5 d3 g6 f2+ Kd2 d4 e6 b2 e7 h3 b7 h2 g7 f4 Qe1 h4 Kd1 f3 Qe2 h3 Ra6 d2 Rc6 Be6 Rc4 Ra7 Ra4 Nf6 g8Q Ne4 Qg5 Nd6 Qee3 Nb5 Be2 f1Q+ Kc2 d1R Ra2 f2 Qf3 Bg8 Bd2 Na3+ Kd3 Bg7 Qfg3 Be5 Qf6 Na6 b8Q Rb7 Qe3 Re1 Qc7 Qd7 Qeh6 Qa4 Bc1 Nb4+ Kd2 d3 Bd1 Re3 Nf3 Qg2 Re1 f1Q+ Re2 h1R Bc2 h2 Qcb6 Rg1 Ng5 h1R Nf7 Rhh3 Ra1 Qgc6 Ra2 Rg4 Ra1 Nb5 Ra2 Qa8 Ra4 Na2 Rd4 Qa4 Na3 b1B Bb2 Qc8 Ba1 Qf4 Nc4 Na3 Nb2 Qcc6 Kd1 d2 Nd3 Qff3 Nf4 Qc7 Bb3 Bg6 Bc2 Qcc6 Nh5 Qf4 Rf2 Reg3 Ke2 d1R Rg2 Rdd3 Rf2 Rde3+ Kd2 Qa8 Re2 Qca4 Re4 Rg1 Rd4 Rb1 Qfc6+ Rd7 Qf6 Rd8 Qa6 Rbb8 Qab6 Rb7 Nd6+ Kd7 Nf7+ Kc8 Qb4 Kc7 e8Q Kc8 Qeb5 Kc7 Qbb6+ Kc8 Nd6+ Kd7 Nf7+ Ke8 Qbe7+
1rR1rNk1/2n1qnb1/1Bb1Nr2/q1Q2b2/3bB2q/1Bq1nPQ1/5B2/1K4R1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nf3 c5 Ng1 b5 axb5 axb4 Qd3 cxd4 Qd2 Ra2 Qd1 Ra8 Kd2 Kf7 c4 d5 Kc2 e5 g4 h5 b6 h3 c5 h4 b7 d3+ Kb2 e3 c6 b3 c7 h2 g5 e2 Bd2 e1Q Qe2 e4 Be3 d4 Ra4 h3 Qd1 d2 Ra6 d3 Qf3+ Bf5 c8B d1N+ Kc1 Nh6 g6+ Kg8 g7 Nf7 Ra7 Rh6 Qg4 Qe7 Qh5 Qa5 Na3 b2+ Kb1 d2 Nc2 Na6 b8B Rf6 Bb6 e3 Bc4 e2 Bb7 e1B Ne2 Nc7 Be4 Ne3 Rg1 h1Q Ned4 h2 Bb3 d1B f3 Bc3 Ne6 Bd4 Ra6 Qc3 B8a7 Re8 Qg5 Qg2 Ra4 h1Q Rc4 Qgd2 Qg3 Qh5 Qe5 Qa5 Qc5 Be2 Rc3 Bb5 Rc4 Qh4 Rc3 Kh7 Rc4 Qdc3 g8Q+ Kh6 Qg3 Bg7 Nf8 Bc6 Nd7 Kh7 Nf8+ Kg8 Na3 Ncd5 Nb5 Kh8 Nc7 Kg8 Nce6 Nc7 Rb4 Qa4 Ba5 Qa3 Rb8 Qa4 Rc8 Qab4 Ka2 b1R B5b6 Qb5 Bbd5 Rb4 Bb3 Qa5+ Kb1 Ncd5 Bc7 Rb8 Bcb6 Nc7 Qb5 Ng2 Bc5 Be5 Bf2 Ne3 Qc5 Bd4 Bb6
nbKbR3/3n3B/Q6r/3P2n1/r4n1r/2NNrqQ1/NbR2r1B/1kN4b b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 h5 g4 c3 b6 f3 d3 b3 d4+ Kb4 g5 c5 g6 c4 g7 f4 b7 b2 Bd3 c2 Nc3 Kb3 Nge2 b1R Nb5 f2 Nbc3 f1R Nb5 c3 Na7 h3 Bd2 Kb2 Nb5 c1B Bc2 f3 Bf4 h4 Bg5 h2 Nc7 f2 Ra7 h3 Ne8 Na6 b8Q+ Bb7 Ke6 Bf4 e5 Rh6+ Bf6 Be7 Bh7 c2 Nd6 c1B Qd3 Qf8 Kd7 Nc7 e6 Bd8 e7 Re1 e8N f1N Be7 Ne3 Nf6 Ng2 Nh5 Qf7 Ra1 Ra4 Nb5 Na8 Nbc3 Bd6 Qc4 Qf3 Qa6 Nf4 Na2 B6c7 Rf1 h1R Rf2 h2 Bd6 Ref1 Rg2 Rf2 Be5 Bd6 Qc7 Bd5 Kc8 Nf6 g8N Nd7 Ne7 Re1 Rg8 h1N Re8 Bc6 Nd5 Ng3 Ndc3 Ne4 Qb8+ Kc2 Qc7 Bb2 Nec1 Re3 Qb8 Rd3 Qc7 Ng5 Qb8 Be4 d5 Re3 Qc7 Nc5 Qg7 Bb8 Bc7 Nd7 Qgg6 Nfe6 Nf4 Rh4 Nfd3 Nf4 Qf5 Rh6 Qh3 Rh4 Qg3 Rh6 N1e2 Rbh1 Rf1 R1h4 Nec1 Qd1 Rg1 Bh1 Rg2 Qf3 Ne4 Kb1 Nec3+ Ka1 Rh2 Rf1 Rc2 Rf2 Be5 Ng6 Bf4 Re7 Qg1 Re3 Bh2 Nf4 Nd1 Kb1 Qg4 Nc5 Qg3 Nd7 Ndc3+
2n1n3/1rR4Q/b5K1/k2qB1Br/4B1N1/qP2bBn1/1rR1QNp1/4qnn1 b - - 0 1 legal: proof: d4 c5 Bd2 cxd4 Qc1 e5 Qd1 b5 Bg5 b4 Bc1 b3 axb3 Bc5 Bd2 Ba3 Bc1 Bf8 f4 exf4 Nf3 a5 Ng1 a4 g4 h5 Qd2 hxg4 Qd3 a3 Qd1 axb2 Kd2 g5 Kd3 f5 e4 d5 h4 Kd7 c4 Kc6 h5 Kb6 e5 g3 h6 g2 e6 f3 e7 g4 e8B f4 h7 g3 Bf7 f2 Qe2 f3 Qc2 Qe7 Nh3 g1N Nd2 b1R Ra3 g2 Bg6 Nd7 Be4 Rb2 Nb1 Ndf6 Qd1 Ne8 Nc3 Ra7 Bg5 Ba6 Qe2 Bh6 Nd1 Rb7 Ra2 Qa3 Ne3 Ne7 Ng4 Ka5 Rh2 Nc8 Rh1 Rf8 h8B Rg8 Be5 Rh8 Qc2 Rhh7 Be2 f1N Nhf2 Ng3 Bd1 Rh8 Qe2 Rhh7 Ra1 Rh8 Rc1 Rhh7 Rc2 Rh8 Be7 Be3 Bg5 Rhh7 Rh6 Rh8 Rc6 Rh5 Nh3 f2 Rc7 f1N Nhf2 Rb5 c5 Rb8+ Rc4 Rb7 c6 Rb1 Kc2 d3+ Kc3 d2 Kd3 Kb5 Rc2 d4 Rg7 Rb2 c7 Ncd6 c8Q Ka5+ Qc4 Nc8 Rc7 Qb4 Qe1 Qf8 Bdf3 Qa3 Qb1 d1Q+ Rd2 Qc1 Rc2 Qe1 Bh7 Nh1 Ke4 d3 Kf5 d2 Qe2 d1Q Kg6 Qd4 Bg8 Nhg3 Bgd5 Qdc5 Bde4 Qc4 Qbd1 Qcc5 Qd7 Qd5 Qh7
b3rN2/nB1r4/2p1bR2/1k2rRq1/7N/BRrnR1qP/2r5/2QKQbn1 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 h5 Kf2 dxc6 Ke1 c5 Ba3 c4 Bb2 Qd5 Bc1 Qd8 g4 hxg4 a3 b5 Nf3 b3 Ne5 b2 Nf3 b4 Ng1 b3 Nc3 Bb4 axb4 Rh5 Nb1 Rh8 d4 Kd7 e4 Kc6 h3 f5 d5+ Kb5 d6 g5 e5 f3 e6 f2+ Ke2 f4 d7 c3 e7 c2 e8R g3 Ra6 g4 Qd6 g2 Nf3 g1N+ Kd3 g3 Nbd2 b1B Re2 b2 Ne1 g2 Qh6 f3 Rae6 Ra5 R2e3 Qg5 d8Q Nf6 Nb3 Nd5 Qe8+ Nc6 Rf6 Be6 Nc5 Nf4+ Kd2+ Nd3 Nd7 Na7 Qe7 Ra3 Nf8 Rc3 Be2 f1R Rh2 f2 Nf3 c6 Nh4 Re1 Bg4 f1B Rf5+ Kb6 b5 Bba2 Qb4 b1R Ba3 c1R Qe4 Bab3 Bb4 Bc8 Rf6 Ba6 Bc8 Be6 Bb7 Rh7 Qe5 Rd7 Rf5 Rbb3 Rf6 Rc5 Qg3 R1c3 Rh1 Re2+ Kd1 Rcc2 Qe1 Rbc3 Rh2 Re5 Rh1 Nf3 Rh2 g1Q Rf2 Q1g3 Rf5 Rcc5 Rf6 Ng1 R2f5 Kc7 b6+ Kd6 Ba5 R5c3 Bb4+ Kd5 Bc8 Kc4 b7 Kb5 b8R+ Kc4 Rb6 Bb7 Rb5 Ba8 Bb7 Qg6 Ra5 Q6g4 Ra3 Kb5 Rb3 Qh5 Ref3 Re4 Qc1 Qhg5 Re3 Rd8 Rb1 Re8 Rb2 Rd4 Rb3 Rd7 Ba3+
r1r1n1K1/2Pb3n/7N/b1R2r1B/qB4BN/1pqk3b/1nR2B1Q/1b1Q3b b - - 0 1 legal: proof: h4 f5 e4 c5 exf5 a5 b4 axb4 d4 cxd4 a3 bxa3 Qd2 g5 Qd1 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 b5 g4 d5 c4 h5 f3 b4 c5 d3 c6 e5+ Ke3 a2 c7 h3 f4 d2 Qf3 d1N+ Kd3 e4+ Kd4 e3 Ne2 h4 Qf2 h2 Ng3 b3 Be2 h3 Nd2 Bd7 Nf3 Qe8 Nh4 Nb2 Qg2 Bb4 g5+ Kg7 g6 Kf6 g7 Ba5 Rf1 h1B Bh5 e2 Rf2 e1R Qh2 Re5 Be3 Bg2 Rc1 a1Q Rfc2 Be4 Kc5 d4+ Kd6 d3 Bf2 d2 Rc5 d1B R1c2 Be2 Bg4 Bf1 Bh5 Ne7 g8B Ng6 Bg4 Bed3 Bf7 Nf8 Bg6 Nh7 B6h5 Re7 Kd5 Rf7 Kd6 Qee1 Kd5 Rc8 Kd6 Kg7 f6+ Kh6 f5 Kg5 Kd5 Kf4 Kd6 Rff8 f7 Qc3 Ke7 Qa4 f6 Bg2 Ngf5+ Ke4 Nh6 Bgf1 Qg3 h2 Qg1 h1B Qh2 Bc6 Ke6 Bh3 Ke7 Nd7 Ke6 Rg8 f8B Rg5 Kf7 Rf5 Kg8 Bcb5 f7 Ndf6+ Kh8 Ne8+ Kg8 Bc6 Bd6 Bd7 f8Q B3b5 Qe7+ Kd3 Qe1 Bbc6 Rc4 Bcf3 Bb4 Be2 Rc5 Bd1 Re2 Bc2 Qa1 Bb1 Rc2 Ba2 Qc1 Bb1 Qd1+
nB1R1N1K/4k3/2Q2NP1/1bqbr2Q/2q1B2r/1Qbr3p/2q1Q3/q2R1n1n b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 h5 Kd3 f5 e4 d5 c4 h3 g4 h4 c5 b3 g5 h2 b6 b2 c6 f3 e5 f4 b7 f2 e6 h3 e7 f3 c7 Rh4 g6 Nf6 Ra3 Bg7 Nd2 b1Q+ Qc2 Qa1 Nb3 Qd6 Bg5 Qc5 Ra5 Be6 Qe2 Ng4 Nd2 Na6 Ne4 Ne3 Bg2 f1B Bf4 f2 b8Q+ Kd7 Qb1 Re8 Nf3 Bf6 Rg1 h1N Qb3 Bh8 Nfg5 Bf7 Kd2 d3 Ne6 d4 Qh5 Be2 Rc1 f1Q Rd1 Be5 Nf6+ Kd6 c8Q Nc7 Qa2 Na8 Nf8 Bd5 Bh2 Qf4 Qb3 Qg4 Be4 Nf1+ Ke1 Qf4 Rb5 Qfc1 Rb8 Q1c4 Qcb7 Nhg3 Kf2 d2 Qc8 Bd3 Kf3 Nh1 Rc1 d1R Rb1 Rd8 e8Q Re1 Rd1 Re2 Qec6+ Ke7 Qcg4 Rd6 Rd8 Re1 N6d7 Bh8 Kf4 Be2 Kf5 d3 Ne5 d2 Ned7 Bc3 Nf6 Rd7 Bb8 Rd6 Rc1 d1Q Rb1 Qdd3 Rd1 Qc2 Kg5 Bd3 Kh6 Re3 Kh7 Re6 Kh8 Re5 Qgc8 Be2 Q8a6 Rd3 N8h7 Bg4 Nf8 Bd7 Qac8 Be8 Qg4 Bd7 Qe2 Be8 Qcb6 Bb5 Qc6
b7/nRrn3b/1b1q1rQn/PB2p1NB/K7/1r1r1Qn1/2R5/1QN1krQ1 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 f5 g4 fxe4 Bb2 h6 Bf6 gxf4 g5 Kf7 g6+ Ke8 Bg5 hxg5 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 e5 h4 b5 a4 f3 g7 g4 a5 f2 h5 e3 h6 e2 h7 e1R Qf3 c4+ Kc2 b3+ Kb2 g3 Ka3 b4+ Ka4 b2 Qb3 c3 Ra2 g2 Nh3 g1R Ng5 c2 Ne6 c1R Ng5 Ra6 Bb5 f1N Qa3 Bb7 Nf3 Ng3 Be2 Ba8 Bb5 Red1 Nbd2 b1B Nb3 Rc7 Nc1 Nd7 Rc2 Rd3 Ng5 Nh6 g8B Rf1 Bf7 Rac6 Qb2 b3 Bh5 Qb8 Qa2 b2 Rhh2 Rg8 h8Q Rb6 Rh3 Rg6 Qh7 Rgf6 Qg6 Be7 Rh4 Bd8 Qa1 Ba2 Rf4 b1N Rh4 Na3 Qb1 Rbc6 Rg4 Rcc3 Rf4 Rb3 Rff2 Rc8 Rc7 Qb6 Rb7 Qc6 Rh2 Bb6 Rc2 Rc7 Nf3 Ke7 d6+ Ke6 Ng5+ Kd5 Rc3 Nb8 d7 Qd6 d8Q Nd7 Rc6 Bc5 Qf8 Bb6 Ba6 Nb5 Rc2 Na7 Bb5 Re6 Qf2 Rf6 Qg1 Nhf5 Nh3 Ke4 Ng5+ Kf4 d5 Nh6 Qh1 Ke3 Qh2 Rd2 Qh1 Kf2 Qh2+ Ke1 Qg1 Qe7 d6 Qe6 Rc6 Rdd3 Rc2 Nb8 d7 Qd6 d8Q Nd7 Qb2 Bb1 Qf8 Re6 Qf3 Rf6 Rf2 Bc2 Qb1 Rdc3 Qg7 Bh7 Qgg6 Rd3 Rc2
2B1bK2/Nb4r1/4Rb1b/QRQ2Rq1/n4P2/k6B/q1pbR1qq/3Nn2r b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 Ba3 dxc4 axb5 f5 b6 fxe4 b5 Ba6 Bc5 Bc8 Bb4 axb4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Ke3 Kc5 g4 h5 f4 c3 d3 h3 b7 h2 g5 c2 b6 c1B+ Nd2 h4 g6 b3 d4+ Kb4 g7 c5 d5 b2 d6 b1B d7 c4 Qf3 h3 Ra7 c3 Qg2 Na6 b8R Nc5 b7 Qg5 d8R Nd3 Qf3 Ne7 g8B Bh6 Qg4 Bb2 Nc4 Ne1 Ra6 Ra7 Rf8 Nd5+ Ke2 e3 Nf3 e4 Qh5 Nb6 Rf5 Na4 Nfe5 c2 Rd6 Ba2 Nc6+ Kb3 Rg6 Bf6 Nb2+ Ka3 Nd1 Bf7 Bg2 Be8 Be6 Rh7 Rf1 h1Q Rf2 h2 Bh3 Rg7 Bd7 Ra5 Na7 Qhg2 Be6 h1Q Bd7 Bc3 Rc6 Qhh2 Re6 Qh4 Qg5 Rc5 Qd8 Qhg5 Qa5 Rd5 Ra8 Bd4 b8Q Bb7 Bc8 Bf6 Qe5 Rb5 Rb8 Rb1 Qd4 Nf3 Nc3 Rh1 Nd1 Ne1 Qdc5+ Kb3 Nc3 Nf3 Nab5 Bd5 Rbb6 Bb7 Qd4 Kb2 Na7+ Ka3 Rbb5 Ng1+ Ke1 e2 Kd2 e1B+ Ke3 Nf3 Nd1 Bc3 Qc5+ Bb4 Ke2 e3 Kd3 e2 Kc4 e1Q Nb2 Ba6 Kd5 Qb1 Kd6 Qa2 Nd1 Bb7 Rfe2 Bf7 Kd7 Ne1 Qcc7 Bd2 Qc4 Bg8+ Ke8 Bf7+ Kf8 Be8 Qc5+
2br1BKn/3r3Q/r1NRNqbk/2N1r1RN/1P2nqb1/p2B4/3Q1rb1/8 b - - 0 1 illegal: No possible last move
3q2Q1/Q3b1qn/p2nRn2/3nB1Qb/2PN2r1/3B2rq/3N1k2/K1RQq2b b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 e3 dxe3 h5 b5 axb5 g6 Bc4 gxh5 Bf1 h4 c4 Ke7 g4 Kf6 b4 Ke5 g5 Ke4 g6 d5 g7 f5 b6 h5 b7 h3 b5 e2 Kd2 e1Q+ Kc2 d4 Kb2 h2 b6 f3 Nd2+ Ke3 Nb1+ Kf2 Bh3 a6 Ne2 f4 Qb3 d3 Ra4 d2 Bg4 d1N+ Ka2 h4 Bh3 Bg4 Ra5 Ne3 Na3 Bh5 Bf1 h3 Bb2 Nd7 b8Q Ngf6 g8Q Nh7 b7 Be7 Qg6 Nf5 Qe8 Nd6 Bg7 Rg8 Qc2 Ndf6 Bh6 Rg3 Qeg6 Rg4 Rg1 h1Q Nb1 h2 Ka1 Qg2 Qd1 h1B Nd4 Qg3 Qa7 Rc8 b8Q Rc5 Qaa8 Rcg5 Qb5 Qg2 Bg7 Rg3 Kb2 R5g4 Bd3 Qe4 Bh6 Qb7 Ka2 Ke3+ Bc2 f2 Ka1 f1Q Nd2 Qh3 Qa7 Bf8 Qg8 Qg7 Bd3 Be7 Qc1 Qe2 Rd1 Qe1 Qf5 Nf7 Qg6 Nd6 Rg5 f3 Re5+ Kf2 Bf4 Kg2 Re3 f2 Re6 f1N Qg5 Ne3 Be5 Ned5 Qc2 Kg1 Rc1 Kf2 Qd1
RqQ5/4qr2/N3QNbK/4bBQ1/3krPq1/1R1qbQ2/bb3Bp1/n1q5 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 e4 c5 e5 cxd4 e6 fxe6 Bd2 e5 Ke2 e4 Ke1 Nc6 Bc1 Na7 Nh3 axb4 Ng1 b3 Na3 b4 Nb1 Nb5 axb5 Ra5 Ra3 Ra6 Ra1 Ra8 Ke2 Kf7 f4 Ke6 h4 Kd5 b6 e5 c3 g5 b7 d3+ Ke3 g3 b8Q d2 h5 g4 h6 b2 h7 b3 Qe1 d1Q Qb6 Ba3 Nh3 g2 Nd2 g1B+ Nf2 b1Q Qb8 g3 Nf3 b2 Qe2 g2 Rh2 Nh6 Ng5 Rf8 h8Q Qe7 Qg8+ Rf7 Qb6 Ra4 Rh3 d6 Qb8 Bf5 Qh8 Bg6 c4+ Kc5 Qf6 d5 Qe6 Qdc2 Qd2 d4+ Ke2 e3 Kf3 e2 Kg3 e1Q Kh4 d3 Qb3 e4 Qe2 d2 Q2g4 d1Q Qb7 e3 Bd3 e2 Bf5 Qf1 Bd2 Qcc1 Be1 Rb4 Qh5 Ng4 Rf3 Ne3 Ng4 Ra4 Nf6 Nc2 Qb3 Bd4 Bf2 e1B Re3 Be5 Nge4+ Kd4 Kg5 Qg4+ Kh6 Bd2 Ra2 Na1 c5 Rb4 Qd1 Rb3 c6 Qa6 Rf3+ Re3 c7 Qc8 Nc5 Qb8 c8Q Qbc2 Nh7 b1B Nf6 Bb2 Ra8 Ba2 Qg5 Qcb3 Na6 Qba3 Bg3 Re4 Rc3 Qab3 Qf3 Be3 Bf2 Qbc2 Ra3 Qd3 Rb3
K1R1N1n1/1r3rnB/4Q1qn/Br1nnb1N/P2r1nQ1/1RQ2nQ1/1p6/5k2 b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 b4 a5 d5 axb4 d6 cxd6 g3 d5 Bd2 d4 Bc1 Be7 Nd2 g4 Nb1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 c4 d5 a4 f5 g6 h5 c5 b3 c6 b2 c7 g2 Kb6 f4 g7 d3 e3 g3 Qe1 f3 Ra3 d2 Rc3 d1N Rd3 d4 Rd2 f2 Bb5 f1R Rf2 h4 Nf3 g1N Rc2 d3 Rd2 g2 Rh3 Qe8 Rh2 h3 Na3 b1N Rh1 h2 Ba6 Nh3 Qg3 g1N Rc2 d2 Be2 Bf5 c8Q Ra7 Nd4 Nd7+ Kc7 b5+ Kc6 b4 Bb2 b3 Ne6 Rb7 Bc3 b2 Nb5 Rh5 Nf4 Nf3 Ba5 Nbc3 Nc7 Ndf2 Rg1 Qf7 Ne8 d1R Bc4 Rg5 Nh5 h1N Be6 Kd3 e4 Ng4 e5 Nf4 Bc4+ Ke3 e6 Rd4 e7 N4h6 Bd3 Ncd5 Rc1 Bg4 Bh7 Ke2 Rc3 Be6 Rb3 Qg6 Qc7 Rf2 Rc1 Rf1 Qg4 Ng3 Rc4 Ngf5 Rcc3 Ngf6 g8Q Ng7 Rc4 Bf5 Qe5+ Re4 Qc3 Rf2 Qe6 Kf1 Qee5 Nfg8+ Qd6 Rb4 Rc5 Rbd4 Kb7 Nde5 Ka8 Rb4 Rc8 Red4 Nef6 Rb7 e8Q Rf7 Qee6 Rc2 Qcb4 Rcc7 Qc3 Rb7 Qa3 Rdb4 Ne8 R4b5 Qh4 Rg2 Qg4 Rd2 Qad6 Rd4 Qdc7 Nh4 Qcg3 Nhf3 Qc3
5rRN/5pQ1/3q1r1n/4n3/Kn1R1bpB/R1QR1n1N/k1rP1nb1/2B4b b - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 g5 g4 b5 h4 gxh4 Bh3 e6 axb5 Ba6 g5 Bc8 f5 exf5 Bg4 fxg4 b4 Kd7 e4 Ke6 e5 Kd5 e6 h5 b6 a5 b7 c5 e7 a4 e8R h3 b5 h4 g6 c3 b6 Kc4 g7 h2 Bb2 h3 Ra2 c2 Ne2 Kb3 Ra1 a3 Nec3 a2 Nd5 c4 Qc1 c3 Nf4 Rh6 Ng6 Nd7 b8B Bb7 Nh8 Rf6 Bg3 Bd6 Bh4 Nh6 g8Q Bf4 Qg7 Bg2 b7 Rb8 Rf1 Ne5 Rf3 Qd6 Rd3 Nf3+ Ke2 h1N Rd8 h2 Rg8 Rf8 b8R+ Qb4 Rd4 Qb6 Kd3 Qb4 Na3 Qb6 Nb5 Qd6 Rb1 a1N Nc7+ Ka2 Ne6 Nf2+ Kc4 h1B Kb5 Nh3 Ng5 Nf2 Qg1 c1R Ka4 c2 Nh3 Nb3 Re8 Na5 Re3 Nc6 Red3 Nce5 Ba3 Re1 Rbb3 c1N Rdc3 Ncd3 Qh2 Nb4 Qg3 Ng5 Rf3 Rb1 Bc1 Rb2 Rfe3 Rc2 Qf3 Qc5 Qc6 Qd6 Red3 Ngf3 Qc7 Rb8 Qc3 Rf8 Ra3+
rb2R2n/1R6/5rkR/1q1ppq2/n2qNqPB/Q2Q4/bn5B/1qN1K1R1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 g5 e4 gxf4 g3 f5 Bc4 fxe4 Qd2 b5 axb5 h5 Bf1 h4 Bg2 h3 Qd1 hxg2 c4 Kf7 b4 a5 h4 e5 c5 a4 b6 f3 b5 a3 g4 a2 c6 f2+ Ke2 f1Q+ Kd2 e3+ Kc2 d3+ Kc3 e2 Kd2 Kg6 c7 Qdf6 b7 Bd6 b6 Q1f4+ Ke1 Rh6 Nc3 Q6f5 Ne4 Na6 b8R Nc5 b7 Ne7 Bd2 Na4 h5+ Kf7 Qc2 Rf6 h6 Ng6 h7 Nh8 Rh6 Kg7 Rc1 a1Q Qb3 Qa2 Qa3 Qb3 Be3 Qc4 Bf2 Qb5 Bg3 Bc5 Bh2 Ba7 Rd1 d6 Ra1 Be6 c8Q Ba2 Qc2 d5 Re8 Kf7 b8R Kg7 Rb6 Bb8 Nf3 Kf7 Nd4 Kg7 Nb3 Kf7 Qcc1 Kg7 Qe3 g1Q+ Kd2 Qb1 Nc1 e1N Kd1 d2 Rb7+ Qbd7 Qg3 Nd3 Ke2 Ndb2 Qgd3 Ng6 h8B+ Kf7 Qf3 d1Q+ Kf2 Qdd3 Ke1 Qd4 Bg7 Nh8 Qfd3 Qg6 Bf8 Qgf5 Be7 Qb5 Rf8+ Kg7 Re8 Rf8 Bh4+ Rf7 Rbb6 Rf6 Rb7+ Qbd7 Ke2 Kf7 Nb3 Qc2+ Qd2 Kg7 Rg1 Qb1 Nc1 Kf7 Qdd3 Kg7 Rh5 Kg6 Ke1 Qb5 Rh6+
1K2QqbN/1b2rBRn/3p1rB1/q1N3b1/2p2b1N/1R3PQ1/n4b2/3rNk2 b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 c4 Nf6 c5 Ng8 d4 Bg7 d5 Bf8 d6 Nh6 Be3 cxd6 c6 Ng8 Bc5 dxc5 Kd2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 Kg5 b4 a5 g4 c4 c7 a4 b6 a3 b7 h3 b5 Kh4 b6 h2 g5 e3 g6 a2 g7 d6+ Kd5 e5 Na3 e2 Nh3 e1Q Rg1 h1B+ Qf3 e4 Rd1 a1B Rg5 e3 Bd3 e2 Be4 Rh7 Bb1 Be7 Bd3 Be5 Bg6 Nc6 b8N Bb7 c8N Bf4 Ng1 Qf8 Nd7 Qa5+ Nc5 e1B Nc2 Nf6+ Ke6 Rh6 g8B Nh7 Kd7 Ra7 Kc7 Nb4 Rb1 Na2 Kb8 Bg2 Qd3 Bgd5 Nf3+ Kh3 B8f7 h4 Rb3 Bd8 Ne7 Be6 Bh5 Rf6 Rg7 Bed5 Ng6 Kg2 Qe3 h3 Nh8+ Kf1 Nh4 h2 Qg3 h1R f3 Bf2 Bfg6 Bg8 Ne1 Ba6 Bf7 Re7 b7 Rg1 Ka8 Rh1 b8Q Rg1 Qc8 Bb7+ Kb8 Ke2 Ned3 Rd1 Bhg6 Kf1 Ne1 Bb6 Ne4 Bbe3 Nc5 Bg5 Qd8 Bef4 Qe8
2Q2r2/2B3pq/Rn6/K2Nbp2/1N3P1q/1k1B1qr1/B1qQb2B/R1qn2n1 b - - 0 1 legal: proof: e4 c5 g4 d5 a4 dxe4 b4 cxb4 a5 h5 Be2 hxg4 Ba6 b5 axb6 axb6 Bf1 b5 d4 Kd7 Kd2 Kc6 c4 e5 f4 g3 h4 g2 c5 Kd5 c6 e3+ Kd3 e2 h5 e1Q c7 b3 h6 b2 h7 b4 Ra6 b3 Rhh6 Qdh4 Ra3 Qe2+ Kc3 e4 Rf6 e3 Ra4 Nh6 Ra1 Nd7 Na3 b1Q Qd2 b2 Ra6 Qf3 Bd3 e2 Nc2 e1Q Ne2 g1N Kb3 f6 Ka4 Nb6+ Ka5 Bg4 c8B Bd6 Bcf5 Rhf8 h8Q Be5 Bg6 Nf5 Nb4+ Kd6 d5 Kc5 d6 Qc2 d7 b1Q d8B Ne3 Bh7 Nd1 Nc3 Qee4 Bb2 Qbc1 Bc7 Qg6 Ncd5 f5 Bg8 Qgh7 Be6 Rf6 Qc8 Rg6 Bg8 Bh5 Be6 Rg3 Bg8 Qc4 Bb1 Qcb3 Bd4+ Kc4 Bf2 Qbc2 Be1 Rg5 Bg3 Kb3 Bh2 Rg3 Be6 Bg4 Bd7 Bh5 Bb5 Rb8 Bd3 Ra8 Qe6 Rf8 Qg8 Qe4 Qe6 Be2 Qc8 Qf3 Ba2+
BN1b1QKn/r1bP1N2/1pn4r/N7/n1qq1Qn1/1N4R1/R4bp1/Bk2n3 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Kf2 g3+ Ke1 Bg4 hxg4 Qd5 Bb2 Qd6 Bc1 Qd8 e4 Ke7 Ke2 Ke6 Kf3 Ke5 a4 Kd4 Kf4 c5 Kf5 h5 d3 b3 g5 b6 a5 c3 g6 c4 a6 h4 e5 b2 a7 h3 g7 c2 e6 c3 e7 h2 e8Q Bd6 Bh6 c1B Qd2 c2 Qd1 Bg5 Qde2 c1N Nh3 g1B Bg2 Bc7 Qf3 Nc6 Qf8 Bf2 Rg1 h1N Nd2 Kc3 d4+ Kc2 d5 b1N d6 Nc3 Qf4 Na4 Nb3 Nd3 d7 Ne1 Ra3 Kb1 Ra2 f6 Ke6 f5 Kf7 Nge7 g8N Ng6 Bg7 Rh6 Ba1 Nh8+ Kg7 Qb8 Bd5 Bgd8 Ne7 Qc8 Ng5 g2 Nf7 Qa6 Rf1 Qc4 Kg8 Qd4 Bf3 Bg3 Bd5 Nf2 Rh1 Ng4 Rh3 Bf2 Rg3 Rb8 a8N Rb7 Bf3 Ra7 Bd5 Bd6 Nc7 Be5 Qg5 f4 Na6 f3 Nb8 Bec7 Qf6 Bg1 Qg5 f2 Qf4 f1Q Bf3 Qfc4 Bd5 Nb4 Nec6 Bf2 Nca5 Nc6 Bf3 Nb4 Bb7 Nc6 Ba8
bK1B1nB1/2n1qR1B/8/q2Bbr2/NpP1pn2/4bq1Q/1nkR3r/3NQ3 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 c5 b4 cxd4 Qe2 axb4 exf5 gxf4 g5 h5 Qg4 hxg4 Kd2 Kf7 Kd3 e5 Ke4 b5 Kd5 b3 h4 b2 a4 f3 c4 b4 h5 f2 g6+ Kf6 g7 e4 a5 g3 h6 d3 a6 g2 a7 d2 h7 d1Q+ Bd2 Bd6 Be2 f1N Bf3 Ne7+ Kd4 Bb7 g8B Ng3 Be6 Be5+ Kc5 d5 Bg8 d4 Nh3 g1B Bh5 d3+ Nf2 Nd5 Rh2 Qf3 Nc3 b1Q Na4 Ne2 Bg6 Nc7 Kb6 Qa2 Rf1 Qe7 Be1 Kg5 f6 Kf4 f7 Ke3 f8Q d2 Nd1+ Kd3+ Bf2 Bd5 Qf5 Bc6 Qh3 Nf4 Bc5 Bf2 Qh4 Bfd4 Qe1 Be3 Rg2 Kc2 Rgf2 Bb5 Kb7 Nd7 Bb6 Rf8 a8B Rf5 Rh2 Nf8 Kb8 Ba6 Bc6 Bb7 Bcd5 Ba8 Rff2 Bc3 Ba5 Ne8 Bd8 Nc7 B8f7 Be5 Bfe6 Rg8 h8Q Qa3 Qh6 Rh8 Qh3 Rh7 Bg8 Rh4 Nab2 Qa5 Na4 Rh7 Rf1 Rhh5 B6h7 Rh4 Nf2 d1N Rg2 Nb2 Nd1+ Kc1 Rd2 Kb1 Qg4 Rh2 Qh3 Kc1 Rg1 Kb1 Rg7 Kc1 Rf7 Kb1 Rd4 Kc2 Rd2+
N7/n7/bn2nq1r/1q1P1q2/k1p2b1B/NN3p1R/r1n2B1N/1KQ1QR1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 Kd7 d4 c5 Kd2 a5 Kc2 g5 h4 f5 b4 g4 h5 a4 e5 a3 h6 c3 b6 Kc6 d5+ Kb5 h7 a2 e6 f4 e7 f3 e8Q+ Nc6 b7 c4 b8B Qf6 Qee1 Na7 Qd3 Ka4 b5 Ba6 b6 Bd6 b7 Ne7 Qde3 Nec8 Q1e2 Nb6 Qe1 Bf4 Ne2 g1R Nd4 g2 Nb3 g3 Rh3 Rh1 Na3 g1Q Bc7 g2 b8N Qh2 Nd7 g1Q+ Bd2 Qe2 Bd8 Qgg5 Rd1 a1N+ Kb1 Nc2 Q3g1 Qf8 Be3 Qff6 Bf2 Qe8 Qgf1 Qff5 Bf6 Qh6 B6h4 Qc6 Qg1 Qef7 Qgf1 Q7f6 Qg1 Qb5 Qgf1 Rhg8 h8N Rg6 Nf7 Rh6 Nfe5 Nb4+ Ka1 c2 Rb1 c1N Qg1 Qd6 Ng4 Ne2 Nh2 Nd4 Rc1 Nbc2+ Kb1 Qdf6 Qg5 Ne6 Rd1 Be5 Qc1 Ng5 Qe4 Bf4 Rf1 Re8 Qee1 Re2 Nf8 Rd2 Ne6 Re2 Nc7 Ne6 Na8 Rd2 Rg1 Nb4+ Qe4 Ra2 Rf1 Nc2 Qee1
1r6/2Bn1q1r/1Q2PnpN/3Nq1Rq/B4rb1/K3N2k/2R1p3/n2QqN1b b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 hxg4 b5 e5 b6 axb6 e3 b5 Ba3 b4 Bc1 Bd6 Qf3 e4 Qd1 Be5 fxe5 dxe3 a4 Ke7 c4 Ke6 h4 Kf5 a5 b5 h5 d5 a6 g3 a7 d4 c5 g2 h6 d3 c6 e2 Kd2 Kg4 h7 f5 c7 b3 Kc3 g6 Kb2 d2 Ka3 b4+ Kb2 e3 Ra4 f4 Qe1 d1Q Ra2 f3 Rh3 f2 Ra5 Nf6 Rf3 Qe8 Na3 Qf7 Nc4 Nbd7 e6 Rb8 a8Q Bb7 Qd2 e1Q Ne2 g1Q c8N Qg3 Qa6 Qe5+ Qd4+ Be4 Ng3 e2 Bg2 f1R Rc3 Rf4 Nf1 Qh4 Qab6 Qde1 Rc5 Qhh5 Rc2 Bf3 Bh1 Kh3 Ne7 Bg4 Rb5 Qe4 Rg5 Qe5 Ka1 b2+ Ka2 b1N Nce3 Na3 Bc6 b3+ Kb2 Nb1 N7d5 Nd2 Ka3 b2 Ba4 Nb3 Qd1 b1B Bd2 Na1 Ba5 Rhe8 h8N Re7 Rc6 Be4 Rc2 Qg7 Nf7 Bh1 Nh6 Qf8 Bb4 Rh7 Bd6 Qf7 Bc7
5b1q/R3n2n/p1Nkbr1Q/4Pb2/3N1Kp1/1b1r2BN/q1Nr3R/B3nQ2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 h4 d5 c4 f5 b4 g5 e4 f4 c5 a6 c6 d3 h5 g4 c7 f3 Ke3 d4+ Kf4 f2 b6 f1B h6 d2 b5 d3 h7 Nd7 b7 Kd6 b8B Ndf6 b6 Ne7 b7 Bf5 Qe2 d1R Nh3 g1Q Bb2 g2 Rh2 d2 Na3 Qf2+ Qf3 g1N Rb1 Rg8 h8Q Bc4 Nc2 Nh7 Ba1 Rg6 Qf6+ Bce6 c8N+ Kc6 Qg5 Rf6 Nd6 Qg2 Qf2 Nf3 Nb5 Ne1 Qf1 Qd4 Be5 Rd8 Qh6 Qb2 Bc7 Rd3 b8N+ Kc5 Rc1 Qh1 Nbd4 Qa2 Bd8 Kd6 Nbc6 Qa3 Rb1 Qa2 Rb4 Rb1 Rb2 d1B Rb7 Rbb3 Ra7 Rb2 Na3 Bdb3 Nac2 Rb1 Ba5 Rc1 Bd2 Rd1 Be3 R1d2 Bf2 Qg2 Ng1 Qh3 Bg3 Qh5 Nh3 Qh4 Qg6 Qh6+ Qg5 Qg7 Qh6 Qh8 e5+
1nqB1qR1/1k3r1P/B1q2NK1/Rp3rn1/n2Q1Q2/4rRb1/2N3p1/4n1bR b - - 0 1 illegal: No possible last move
1B2b1n1/K1Q1n1kP/nN4p1/1RqRq1B1/5r1r/r6n/1pQ1RNb1/1b1R4 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 Kd3 Kf8 Kc4 f1R Kb5 d5 c4 b3 e4 d3 a4 f2 h4 d2 a5 b2 c5 g3 h5 g2 f5 g6 c6 b6 c7 d4 a6 d3 h6 Bb7 c8Q Re1 a7 f1Q e5 Qf2 e6 Re4 f6 Rf4 f7 Na6 Na3 b1B Qdc2 d1N Nh3 g1N Q8c7 d2 Nc4 Ne3 Ra5 d1B Bd2 Qg3 Nf2 Nh3 Re1 Be2 Rd1 Nf5 Bc1 Nfe7 h7 Qd6 Be3 Rh4 Bg5 Kg7 Rd5 Rf8 a8R Qge5 Rd8 Bf3 Rd7 Bg2 Rd8 Qc3 Rd1 Qde5+ R8d5 Qcd4 Ka4 Bc6+ Rab5 Nc8 e7 Qc5 e8R Bd7 Re6 Nce7 Rf6 Ra8 Rf4 Be8 Re4 Rd8 Re2 Rd7 Rb3 b5+ Ka5 Rd6 Rb2 Rf6 Nb6 Rff4 Rb4 Qcd6 Rb3 b4 Rb2 b3 f8B+ Kf7 Nd7 Qa3+ Kb6 Qb4+ Ka7 Qb5 Nb6 Qc5 Ra2 b2 Bfh6 Ra4 Bf4 Ra3 Bhg5 Kg7 Ra1 Nf6 Bg3 Rf8 Bh2 Ng8 Bhf4 Rd3 Ra5 Ra3 Rb5 Rf5 Bg3 Rff4 Ne4 Qe6 Qc6 Rf6 Bb8 Qe5 Qc7 Rff4 Nf2
1n2Br2/3q1P2/p3b3/1RBNKQ1r/3nbr2/3b2p1/2B1RB2/kn1rq1QN b - - 0 1 legal: proof: b4 b5 e4 f5 g4 fxe4 a4 c5 d4 cxd4 Nc3 e6 Nb1 Bc5 g5 bxa4 b5 a6 g6 Ba7 b6 hxg6 bxa7 g5 Be3 g4 Bf4 Ne7 Bc1 Ng8 Kd2 Ke7 h4 Kf6 f4 g5 c4 d5 c5 e5 h5 g3 f5 a3 h6 g4 c6 g2 c7 e3+ Kd3 a2 h7 g3 Na3 e4+ Ke2 Ke5 f6 d3+ Ke1 Kd4 f7 Kc3 Qf3 d4 Nc2 d2+ Ke2 d1B+ Ke1 d3 Qf5 e2 Qf3 Nh6 Rh2 Qd7 Nb4 Bc2 Be3 Kb2 Kd2 e1R Nd5 Nf5 Bf2 Nd4 Nh3 g1N Qf5 Nge2 Ke3 Nc3+ Kf4 d2 Bd3 d1B Ke5 e3 Be4 Bb1 Bc2 e2 Rg2 Rf8 h8B Rf1 Bg7 Rh8 Bf8 Rh5 Bc5 Bb7 c8B e1Q+ Be4 Bd3 Rb1+ Kc2 Rb4 a1R Rb5 Bg4 Rh2 Rd1 Rg2 Qc6 Bd7 Nb1 Be8 Qd7 Rh2 Qb4 Rg2 Kb2 Rh2 Ka1 Rg2 Bde2 Bc2 Qd2 Be1 Bc4 Re2 Rf4 Nf2 Bd3 Nh1 Qa5 Bf2 Qe1 Nc3 Bbe4 Nd5 Nbc6+ Kf6 Rc8 a8Q Nb8 Ke5 Bh3 Qa7 Rd8 Qg5 Be6 Qf5 Qc6 Bd7 Rf8 Be8 Qc8 Qe7 Qc6 Qh4 Qb7 Qh2 Qd7 Qg1
3n1q1Q/2Bb1N1K/1r1RB3/rbRrRR2/3Q3b/p2r2rN/b1Pk1n1p/8 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 e3 dxe3 h5 b5 axb5 g6 Bc4 gxh5 Bf1 h4 Ke2 Ke7 Kd3 Kd6 Ke4+ Kc5 Kf5 Kb4 g4 h5 b3 a5 g5 d5+ Ke5 f5 g6 d4 b6 d3 b7 e2 g7 e1R+ Be3 h3 Bg2 h4 Ra2 f3 Nd2 Kc3 b4 h2 b5 h3 b6 f4 Ra4 f2 Ke4 f1R Qc1 f3 Ke5 f2 Qb1 Be7 Kf4 Rh6 Bc5 Re3 Bd6 Nf6 Kg5 Qf8 g8R Bd7 Rg6 Rd1 Ndf3 f1B Re4 d2 Bc7 a4 Ne5 a3 Nf7 Bfb5 Re5 Nc6 b8R Nd8 b7 Ra5 Rc8 Ng4+ Rf6 Nf2 b8Q Rd3 Bd5 Rg6+ Kh5 Rgg3 Rd6 Bh4 Be6 Rf1 Qb6 d1R Qd4+ Kd2 Qbb2 Rb1 Rf5 Rfd1 Qh8 Rd5 Qbg7 Rbb3 Kh6 Rbd3 Kh7 Rb1 Qd4 Rb3 Ne2 Rb4 Ra1 h1B Re1 h2 Nf4 Bf3 Ree5 Be2 Rc6 Bc4 Rb6 Ba2 Rd6 Rb6 Nh3 Bh5 Nfg5 Bhe8 Nf7 Bb5 Bb8 Bed7 Rc5 Raa6 Bc7 Ra4 Qc4 Ra5 Qd4
3RNB2/1K1Prrr1/1n3nB1/6k1/1npQ2b1/3q2pn/N2n1b2/rR1NNQ2 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 e5 c5 exf4 c6 axb4 axb5 dxc6 Ra4 c5 Ra1 c4 Kf2 Ke7 e4 Kf6 h4 g5 d4 c5 h5 f3 Ke3 c3 b6 g3 b7 f2 h6 c2 d5 b3 d6 c4 Kd4 b2 Kd5 g4 h7 g2 Bd3 f1N Qe2 g3 Qh5 Bg4 Ra5 Ra7 Nf3 g1N Ne1 Nd2 Qh3 Kg5 e5 f5 e6 f4 e7 f3 e8N f2 Bg6 f1R Nc3 b1R Nd1 Ra1 Ba3 Nd7 b8N c1N Na6 Na2 Nb4 Rf7 Qf1 Nh3 Rc5 Rg7 Rc8 Ngf6+ Kc6 Nb6 Rg1 Rhg8 h8Q Raf7 Rh1 Be7 Kb7 Rh7 Rb8 Rgg7 Ra8 Nc1 Na2 Nd3 Bc5 Nb4 Rc8 Nfd7 Rb8 Bf6 Rg1 Bd4 Rc8 Nf6+ d7 Qe7 Ra8 Qe3 Rd8 Qd3 Bf8 Re7 Qg8 Be3 Qe6 Bf2 Qd6 Rgf7 Qd4 Rhg7 Rg2 Be3 Re2 Bf2 Re3 Qc2 Rb3 Qd3 Rb1
1qRb4/1Np2K2/q2N2N1/2bQQbBb/bkN5/2r2P2/n3p1br/1B2R1n1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 dxc4 Rh3 f5 Rh1 b5 axb5 axb4 Qf3 fxe4 Qg4 Bf5 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 e5+ Ke3 Kc5 b6 b3 d4+ Kb4 b7 c3 g5 c2 g6 h3 g7 h4 d5 h2 d6 h3 d7 b2 Bg2 Ra3+ Qd3 Bc5+ Kd2 e3+ Ke2 e4 Bf3 Nh6 g8N Ng4 Ne7 Nc6 b8N Nge5 Qd1 Rc3 Nd2 b1B Nf5 Rh7 Bg4 Nf3 Nd6 Ba6+ N2c4 Bb5 Ra8 Ba4 Bd2 c1Q Bf5 Qa3 Qe1 Qc8 d8Q Qa6 Nd7 Qb2 Kf1 Rh4 Ne2 Ng1 Nf4 Bbc2 Qa1 e2+ Ke1 Qb3 Be3 Rh6 Kd2 e1B+ Kc1 Rh7 Rc8 Rh8 Bd2 e3 Ng6 e2 Bg5 Rh4 Ncb6 Qg8 Kb2 Rh8 Nbc4 Bd2 Be7 Bg5 Ka2 Bh4 Bg5 Be4 Kb2 Bf3 Bb1 Bh5 Nde5 Qe8 Nb7 Qf8 Qd5 Rh7 Ra8 Qb8 Nf7 Rh8 Nfd6 Rh7 Bf4 Bd8 Bg5 Bf3 Nge5 Rd3 Bf4 Qba7 Be3 Na5 Ng6 Nb3 Qf7 Nc1 Qg8 Na2 Rc8 Qb8 Nce5 Bg4 Qe6 Nf3 Re1 h1B Bg5 Ng1 f3 h2 Qf7 Bg2 Qf5 Rb3+ Kc2 B2h3 Kd2 h1B Nec4 Be8 Qd5 Ba4 Qf6 B1g2 Qff5 Rb2+ Kd3 Rc2 Ke4 Rc3 Ke5 Rh4 Ke6 Bh5 Kf7 B3g4 Qfe6 Bf5 Qe8 Rh2 Qee5
Q3b1RK/1qB1r3/1nb1k1p1/2b1r1PQ/1BR3Q1/5Qp1/bnn5/1N2nr1N b - - 0 1 legal: proof: b4 a5 g4 h5 d4 c5 f4 cxd4 g5 e5 Bh3 exf4 Bg4 hxg4 a4 b5 axb5 axb4 Kf2 Ke7 e4 d5 c4 f5 h4 g6 e5 f3 Kg3 f2 Kf4 f1N c5 b3 c6 d3 e6 b2 Ke5 g3 b6 d2 b7 d4 h5 f4 c7 f3 h6 f2 h7 d3 Na3 b1B Rh3 Nh6 Bb2 Ra5+ Nb5 Nf5 Qe2 d1B Rh4 d2 Nh3 Ba2 Qf3 Qd7 Rc4 Nd4 Bc3 Ba4 Re1 Ra7 Na3 d1N Nb1 Nfe3 Bd2 f1R Nf2 Nec2 Nh1 Rg8 h8Q Nb2 Qhh5 Bc6 Re3 Ne1 Bb4+ Ke8 Kf6 Bc5 e7 Ndc2 Rb3 Ra5 Rbc3 Rg7 Rd3 Rb5 Ra3 Qd5 Ra8 Kd7 e8Q+ Kd6 Qd8+ B8d7 c8Q Re7 Qf8 Be8 Qcg4 Bf7 Kg7 Nd7 Kh7 Be8+ Kh8 Nb6 Rc8 Qe4 b8B+ Kd5 Qgf4 Ke6 Bc7 Bd6 Ra8 Re5 Rd8 Qd5 Q4e4 Bc5 Q8f4 Bed7 Rg8 Be8 Qf8 Qd7 Qd4 Qc8 Qdf4 Qb7 Qfh4 Bed7 Qa8 Be8 Q4g4+
3R2r1/p1n4q/1Bp1B1QR/P2kbn2/bQ1nb3/1r4q1/3N1Qb1/K4QNn b - - 0 1 legal: proof: f4 d5 h4 e5 c4 dxc4 b4 exf4 b5 g5 Qb3 gxh4 Qd1 c5 bxc6 bxc6 a4 Ke7 g4 Ke6 d4 f5 Kd2 h5 Kc2 f3 Kb2 c3+ Ka2 c2 e4 f4 g5 h3 g6 f2 g7 f3 a5 h4 e5 h2 Be2 f1B Nh3 f2 Kb2 Kd5 e6 Qd6 e7 Na6 e8Q Ne7 Bg5 c1N Qg6 Nb3 Ng1 h3 Bg4 Qg3 Bd7 Rg8 Be3 Nf5 Nd2 Bg2 Qf1 Bd6 Rd1 Be5 Qf6 Be4 Qf8 Rb8 Qb4 Nc7 Ka2 Ba6 Kb2 Rgd8 g8Q+ Ne6 Qg4 Bb5 Qg6 Rg8 Ka2 Ba4 Kb2 Nbc5 Ka1 Rb7 Bg5 Rb5 Bd8 Na6 Bb6 Nac7 Qc3 Kd6 d5 Rb3 Qd4 Bf6 Qc3 Ned4 Qb4+ Ke5 d6 Kd5 Be8 Bg7 d7 Be5 d8Q+ Bd6 Qe1 f1B Qh4 Bfg2 Bd7 Be5 Qf1 Qg4 Qhf2 Qg3 Ne2 Bgf3 Rg1 h1Q Rg2 h2 Ng1 Qf4 Rg4 Qg3 Rh4 Bg2 Nh3 Qg1 Rh8 h1N Rh6 Q1h2 Ng1 Qhh4 Re1 Nd6 Re3 Qe7 Rf3 Qg7 Rf8 Qh7 Rd8 N6f5 Be6#
4n2n/N4nn1/2bB3R/1pNPpQrr/k4B2/1n3qq1/1K1N2NQ/1R3nn1 b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 fxe4 g3 axb4 Bh3 e6 Bg4 hxg4 c5 Bd6 f5 Bf4 c6 dxc6 gxf4 c5 Qf3 c4 Qb3 Qf6 Qd1 Qd8 h4 Kd7 a4 Kc6 d4 g5 Kd2 g3 Kc2 b3+ Kb2 e5 a5 Kb5 d5 c5 a6 c3+ Ka3 g2 a7 c4 f6 g4 f7 e3 f8N e2 h5 e1Q h6 b2 f5 c2 f6 g3 f7 c3 h7 Bd7 Ka2 Nh6 Nh3 g1N Ne6 g2 f8Q Qg3 Qf7 Nf5 Nef4 Nf3 Rh2 g1N Qe6 Qf6 Qd3+ Ka4 Qd6 b5 Nh5 Na6 N5f4 Ng7 Rh1 Nc7 Nf2 Rag8 a8N Ng5 Rh6 Nf7 Qf5 Nce8 Ng2 Bc6 Nd2 b1N Qf8 Qe6 Qh3 Qeg4 Qh2 Qf5 Nd3 Qff3 Ne4 Nd2 Rb1 Nf1 Bf4 c1N+ Ka1 c2 Nb6+ Ka5 Nd2 Nce2 Kb2 c1N Nc8 Ka4 Na7 Nb3 Nc5+ Kb4 Bg5 Nf4 Be7 Ng6 Bd6 Ka5 Qe7 Rf8 Qd7 Rhg8 Qf5 Ngh8 Qc8 Ng5 Qg4 Rf5 Qe4 Ngf7 Qg4 Ng6 h8B Rh5 Qf4 Nf5 Bg7 Ngh8 Bgf8 Rgg5 Bfe7 Nfg7 Qf5 Rg4 Bg5 Kb4 Na6+ Ka4 Bf4 Rgg5 Nc5+
3r1R1N/2r2b2/1r4Rq/4qpB1/1r2B1p1/1N5k/r2RbbnP/3QRQbK b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 b5 f4 c5 f5 cxd4 f6 exf6 Na3 f5 Nc4 f4 Nd2 Nc6 Nb1 Na7 Be3 axb4 Bc1 b3 Bd2 b4 Bc1 Nb5 axb5 Rh6 Kd2 Rh4 Ke1 Rh8 Kf2 Ke7 Kg2 Kf6 e4 Kg5 c4 Kh4 b6 d5 e5 f5 c5 g5 e6 d3 e7 d4 e8R d2 b7 g3 b8R b2 c6 b3 c7 g4 Bb5 d3 Nh3 f3+ Kg1 g2 Ba4 Bc5+ Re3 Qe8 Rb6 Qe5 Qf1 d1B Rd6 d2 Qc4 Nf6 Rd8 Be2 Qc3 d1R+ Kf2 Rd7 Kg1 Nh5 Nd2 b1R Bc6 b2 Qc2 Nf4 Rf8 Ra2 Ng5 Rhh7 Qd3 Rd8 Nf7 Be6 c8Q Kh3 Nh8 Rc7 Qca6 Bf7 Nb3 Bd4 Qd1 Bb6 Be4 Bd4 Kf2 g1B+ Ke1 Bb6 Rd3 Ba7 Rd6 Bad4 Rg6 Ng2+ Kd2 Bgf2 Re1 Bg1 Qb5 f2 Qa6 f1Q Qb5 Ra6 Ra2 Ra1 Qc4 b1R Rc2 Qf2 Rb2 Qh4 Ra2 Bf3 Qf1 Qh6+ Kd3 Rac6 Bg5 Rb6 Rd2 Ra2 Bb7 Be4+ Ke2 Bdf2 Ba8 Bc2+ Be4 Rbb2 Nc5 R2b5 Nb3 Rb4 Bf6 Bd4 Rd3+ Bge3 Bg5 Bc5 Rd2 Bed4 Be3 Bd3+ Kf2 Bdc4 Kg1 Be2 Bf2 Be3 Kh1 Bcd4 Bh4 Bg1 Be7 Bdf2 Bg5
bR2Nq2/2qn2pK/3pqN2/q2nQ2n/1Qrb1Q2/3QB3/1P1b2k1/Bn1R4 b - - 0 1 illegal: Other
1n6/qq1br3/1B1QnR2/3rq2N/bPbRp2r/B2N2p1/NQ1N2p1/1K1k4 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 bxa4 g5 cxd4 Bg2 e6 Be4 fxe4 e3 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Kf1 g4 Kf2 Rh3 Ke1 Rh8 Kd2 Kf7 c4 Kf6 Kc2 g5 h4 d5 b4 a5 h5 g3 h6 g2 c5 d3+ Kb2 a3+ Ka2 d4 c6 a4 c7 e3 h7 e5 Qh5 g4 Rh3 g3 Bb2 d2 Nc3 d1B Nb1 d3 Qe2 d2 Rh1 Qd7 Rh4 Ra5 Nf3 Nh6 Ne1 Rd5 Nc3 Nf7 Kb1 Ng5 Nd3 Bb3 Na2 d1B Bc1 Qg7 Qb2 Bd7 c8N e2 Nb6 e1R Nc4 Ne6 Nd2 Bc4 Rg4 Re4 Rh4 Re8 h8N Re7 Ng6 Qf8 Rh2 Qc8 Rh4 Qb7 Rg4 Kg7 f6+ Kh6 f5 Kh5 f7 Rf4 f8Q e4 Rh4+ Kg5 Rh7 Rh4 f6 Kg4 f7 Bdb3 Ngf4 Bd1 Nb3 Kf3 Nd2+ Ke3 Nh5 Ke2 Qd8 Bdb3 f8B Kd1 Rg7 Ke2 Qd4 Nc5 Ne5 Re6 Nc3+ Ke1 Ra2 Bdb5 Rf7 Bc6 Qb6 Bd7 Nf1 Re8 Raf2 Ne6 Rd2 Bd1 Bh6 Re7 Be3 Bdb3 Bb2 Bd1 Rf6 a2+ Kc1 a3 Qd6 Bdb3 Rd3 Bc2 Nd2 a1Q+ Ncb1 Qa2 Nc3 Qb3 Bg1 a2 Be3 Qa4 Ba3 Qaa7 Kb2 Bb1 Kc1 a1Q Na2 Ke2 Qc3 Ke1 Bb6 Ke2 Qb3 Bc2+ Qb1 Qd4 Qb2 Bca4 Kb1 Kd1 Rh6 Qf2 Rd4 Qf5 Nd3 Qe5 Rf6
q4N1N/nk6/bBN2K1N/1pnprB2/2q5/1qQ1R1b1/rqpP4/3Rr1Q1 b - - 0 1 legal: proof: b4 b5 c4 g5 f4 e5 h4 exf4 c5 gxh4 Rh3 a6 Rh1 Ra7 a4 Rb7 c6 Rb6 axb5 Rxc6 b6 Rc2 b5 axb5 Kf2 d5 Kf3 Kd7 Kg4 Kc6+ Kh5 f5 g4 h3 e4 h2 g5 f3 g6 f4 g7 f2 e5 f3 e6 Ra2 b7 Nf6+ Kg5 h5 g8Q h4 e7 h3 e8N Rh5+ Kg6 Bd6 Qb3 Re5 Ba3 Ne4 Nc3 Nc5 Bd3 f1Q Ne4 f2 Nf3 Qd1 Re1 h1Q Qc3 f1Q N8f6 h2 Ng3 Qb3 Bf5 Qfc4 Re3 Qc1 Ng5 h1R Nd7 Qcb2 Rd1 Re1 Nf8 Kb6 Nf7 Nc6 b8N Ba6 Nh8 Na7 Kg7 Kb7 Nc6 Qa8 Kf6 Re4 Nf1 Bg3 Nh2 Re5 Ng4 Ne6 Be7 Bf4 Qd4 Qcd3 Nb8 c5 Nc6 c4 Qg6 c3 Nh6 c2 Bc5 Qdc4 Qg1 Bg3 Bb6 Nc5 Qc3
k4nbK/BQ2n3/Q2Q2Np/2rq2PQ/3rn1pb/2RqR3/5p2/N1b2Bn1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 h4 g5 a4 b5 g4 gxh4 Qd3 e6 Qe4 Ke7 axb5 Ke8 f5 Na6 g5 Nb8 Qf4 exf5 Qg4 fxg4 Kd2 f5 Kd3 a5 e4 d5 b4 Kd7 c4 Kc7 c5 Kb7 e5 h3 b6 h2 e6 h6 e7 f4 e8Q f3 b5 a4 Qe4 a3 Qe7+ Nd7 Qf6 a2 Qe5 f2 Bb2 Bd6 Qe8 Ne7 Ne2 Ra4 c6+ Ka8 c7 Nf8 Qh5 Bg3 Nd2 Bh4 Nb3 Be6 Rc1 a1B Rc3 Bg8 Nf4 Rh7 Bc1 Bb2 Be3 Bc1 Ng6 Ra5 Rg1 h1N Na1 Ng3 Rg2 Ne4 Rg3 Rf7 Rh3 Rf4 b7+ Ka7 c8Q Qd6 Rf3 Qc5 Kc2 d3+ Kb3 d2 Qe6 d1N Qa6+ Kb8 Rh3 Kc7 b6+ Kc6 b8Q d4+ Kc2 Qc4 Qba7 Rc5 b7+ Kc7 Q7b6+ Kb8 Qbb5 Qd5 Kd3 Nd2 Qb4 Nf3 Qbb6 Ng1 Qe6 Rf6 Qe5+ Rd6 Rg3 Qf7 Ke4 d3 Qd5 d2 Ke5 Rd8 Rh3 Qh7 Kf6 Rd7 Bd4 Rd8 Rce3 Nc3 Rhg3 d1Q Qdd6+ Rc7 Bb6 Qd5 Rgf3 Na4 Rc3 Nc5 Rfe3 Rd7 Nf4 Qb1 Kg7 Ne4 Ng6 Qbd3 Kh8 Rd8 Qf6 Rc5 Qf3 Qe6 Qh1 Rd4 Ba7+ Kc7 Qg2 Qd5 b8Q+ Kd7 Qb2 Kc7 Qg3+ Qd6 Bb6+ Kb8 Ba7+ Ka8 Qe5 Qc6 Qd6 Qd5 Qbb7+
r2r4/n6q/PnN1BB2/Kp4NN/2b4N/p1Q2p1R/R4nbq/1r1nQ1k1 b - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 d5 gxh4 d6 cxd6 Qd3 d5 Qd1 d4 b4 a5 Kd2 a4 Ke1 Bc5 Nh3 Ba7 Ng1 Bb6 a3 Ba5 bxa5 Na6 Rh3 Nb4 Rh2 Na2 Rh1 Qe7 Rh3 Qxa3 Rh2 Qe7 Rh1 Qd8 Kd2 Ke7 e4 Kf6 c4 Kg5 g4 f5 e5 d5 e6 h5 c5 b5 c6 f3 c7 Kf4 a6 Kg3 e7 Kf2 e8Q h3 g5 a3 g6 d3 g7 h4 Bg2 h2 Qe4 d4 Qf4 h3 Qg5 f4 Qf6 Be6 c8N Ne7 g8N Nb4 Ne2 Qd6 Rg1 h1N Bf1 h2 Nh6 Rd8 Ra2 Nbc6 Nbc3 Bc4 Nf5 Na7 Bh3 Nd5 Rg3 Nb6 Bb2 Qc7 Bg4 Qh7 Rh3 Kg2 Qe5 f2 Neg3 f1B Nce4 f3 Nh4+ Kg1 Qe1 Nf2 Ng5 h1Q Ne7 Qg2 Be6 Qh2 Q1e4 Bg2 Nh5 Ng4 Nc6 Nf2 Kc1 d2+ Kc2 d3+ Kc3 d1N+ Kb4 d2 Ka5 Nc3 Qe3 d1R Ba1 Rf1 Qe1 Ncd1 Bd4 Nb2 Qc3 Rb1 Qg3 Nd1 Bf6 Qe7 Qge5 Qh7 Qee1+
k1QnBnQb/b1q1Pq1Q/2Rr1p2/3p3r/n7/Q3NB2/1p1r3R/2nN2K1 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 g5 a5 g6 axb4 Nh3 f6 Bb2 b6 Ng1 h6 Bc3 Bb7 Bd2 Be4 Be3 Ke7 Bf2 Bg2 Bh4 Bd5 Bg5 Bf7 gxf7 hxg5 Kf2 Kd6 h4 Kc7 c4 Kb7 a4 d3 e4 d2 e5 f3 a5 g4 c5 g5 e6 b5 e7 b3 h5 g3+ Ke3 g4 h6 g2 Kf2 g3+ Ke3 b4 h7 f2 Nf3 g1B Ng5 g2 Ke2 b2 Rh4 b3 Raa4 Bg7 f8Q Ra6 c6+ Ka8 c7 Nh6 c8Q Rd6 a6 Nf7 a7 Qc7 Na3 b1N Nc4 b2 Ne4 Nd8 Qb3 d1R Rh2 R1d2+ Kf3 Nc3 Ra6 Na4 Qa3 Nc5 Ne3 Na4 Be2 f1Q+ Nf2 Qd1 Rc6 Qb3 Bd3 Qf7 Nfd1 Bf2 Bc2 g1N+ Kg2 Ne2 Bg6 Nc1 Kh1 Rg8 Bh5 Bh8 Bf3 Rg5 Qg8 Rh5 Kg2 Bg7 h8Q Bg1+ Kh1 Bf2 Qhh7 Bh8 Qg2 Re6 Qg3 d5 Qgg8 Rd6 Kg2 Be1+ Kg1 Bg3 Qcg4 Nd7 Qgf5 Nf8 Qc2 Kb7 a8B+ Ka7 Bb7 Be1 Bc8 Ka8 Bd7 Bg3 Qc4 Be5 Qcc2 Bd4 Be8 Bc5 Qcf5 Ba7 Qc8+
2q3b1/rRp4N/np1r2Qr/n1qN2Pr/2b1K3/QN5N/1k5p/RB1B2n1 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 g5 Nc3 g4 Nb1 dxc6 Nh3 c5 Ng1 c4 h4 g3 Bb2 Qg5 Bd4 Qh5 Be3 Bh6 Bf2 Bg5 hxg5 Qg4 g6 Be6 Qb3 gxf2+ Kd1 Qh3 g4 Qg2 g5 Qd5 Kc1 Bc8 Qd1 Qd8 Kc2 Ke7 d4 Kd6 a4 Kd5 a5 f5 g7 h5 e3 b6 a6 f3 a7 c3 Kd3 c2 Bh3 c1N+ Kd2 Kc4 d5 f1B e4 b3 Ke3 f2 e5 h4 d6 f4+ Ke4 f3 e6 b2 e7 Na6 e8N Rh5 d7 Ne7 g8N Nc6 Ra5 Ne2 Bg4 h3 Qe1 Kb3 Qd2 h2 Nh3 Ng1 Qd6 Bc4 Nef6 f1Q Nh7 f2 Ngf6 Qc1 Nd5 f1R Qg6 Rf6 Nd2+ Kc2 Ra1 b1R Nb3 Na5 Bd1+ Kb2 Ra3 Qg8 d8Q Be6 Qd6 Qc8 Qb4 Ra1 Qf8 Rb8 a8B Bg8 Qc5 Qc3 Ra4 Rd6 Qa3+ Kb1 Bc6 Qb4 Bd7 Qc5 Bf5 Ra8 Qg7 Rdh6 Qg6 Ra7 Ne3 Nc6 Be2 Nab8 Bfg4 Ra6 Bf1 Ne2 Bf3 Ra8 Ra6 Na5 Ra7 Na6 Rb7 Ra7 Bg4 Ra2 Rg1 Rd2 Rh1 Rd8 Nd5 Nf4 Bfe2+ Kc2 Ra1 Rd6 Bf1 Ne2 Ne7 Ng1 Bd1+ Kc3 Bd3 Nb4 Bb1 Na6 Qa4 Kb2 Nd5 Qb8 Qb4 Qc8 Qa3+
nkr1b3/1Pq1R3/RN1q1b2/bn1p1Br1/4BNBB/1K1QQ3/n4pp1/1n6 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kd2 f5 e4 d5 h4 Kd7 c4 Kc7 Kc2 g5 c5 f3 c6 g3 e5 d3+ Kb3 g2 h5 f4 h6 d2 h7 f2 e6 g4 e7 f3 e8B g3 Rh3 Ne7 Kb2 b3 Rh1 Nd7 b6+ Kb8 b7 Nb6 Ra2 Bd7 Ne2 g1B Kc3 g2 Ra7 b2 Rh4 Bg7+ Kb3 Nf5 Ra6 Bf6 Re4 Nd6 Re7 Qc7 Bg6 Rg8 h8Q Nb5 Qh3 Be8 Nbc3 b1N Bf5 Rg5 Nf4 Qd6 Bc4 f1Q Na4 f2 Qc3 Bh2 Bcd3 Bg3 Qe1 d1N Bde4 Qh1 Bd2 Qh7 Qd3 Ndc3 Qee3 Na2 Bb4 Bh4 Bc5 Bc3 Bd4 Ba5 Bf6 Ra7 Bg4 Na8 Nb6 Qf7 Re6 Qfc7 Re7 Bg3 Nh3 Be5 Nf4 Rh5 Bg5 Bf6 Bh4 Rg5 Be2 Qcd8 Bg4 Nac7 Nc4 Ra8 Rb6 Ka7 Qg3 Rc8 Qge3 Na8 c7 Rb8 c8B Q8c7 Bcf5 Rc8 Ra6+ Kb8 Nb6
6Nr/2R1n3/1BpK1Rb1/br3bpk/p2N1Q2/2qB2P1/1r1br1Q1/NN3n2 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 h5 b3 cxb3 Qc2 h4 Qg6 h3 Qc6+ Bd7 Qf3 Bc8 Qg2 hxg2 Kf2 g5 Kf3 f5 h4 Kf7 d4 Kg6 e4 a5 h5+ Kh6 d5 b2 e5 a4 d6 c6 b6 Na6 b7 Bg7 b8Q Qf6 e6 Nb4 d7 Ne7 d8N Ra5 Nb7 Qc3+ Be3 Nbd5 Nc5 Rb5 Ne2 g1B Nd4 Be5 Be2 Bc7 Bd3 Ba5 Ncb3 Bf2 Ra3 Be1 Na1 Bd2 Rb3 Bd7 Rf1 Bc8 Bg1 Ne3 Rf2 Nf1 Qe5 Kh7 h6 Kg6 h7 Kh5 Rb4 Bd7 Qd5 Be8 Qa2 Bg6 Rb3 Re5 Rb7 Re4 Rc7 Re2 Na3 b1R Qc2 Ng8 e7 Rb2 e8N Ne7 Nb1 Rb5 Nd6 Rb2 Nf7 Rb5 Nh6 Rb2 Kg2 f3+ Kh3 f4 Ng8 Rb5 Qa2 Nh2 Rf1 f2 Qf7 f3 Qf4 Rb2 Nh6 Rc8 h8Q Rb5 Qhe5 Rh8 Qd5 Rb2 Ng8 Rb5 Rd1 f1R Bf2 Rh1 Rf1 Rg1 Be3 f2 Qg2 Rh1 Re1 f1B Bg1 Rf2 Re6 Re2 Rf6 Rb2 Nh6 Rhb8 Ng8 R8b6 Nf5 R6b5 Bb6 Re6 Nd4 Be2 Qg1 Nf1+ Kg2 Bd1 Kf2 Ree5 Qg2 Bc2 Kf3 Re2 Bc5 Ne3 Bc4 Bcf5 Bb6 Nf1+ Bd3 Be8 Rf7 Kg6 Rf8 Rh8 Rf6+ Kh5 Qe5 Ne3 Qf4 Bg4+ Ke4 Bf7 Bc5 Bg6+ Ke5 B4f5 Kd6 Nf1 Bb6
1r2B1k1/BpNnQ3/PQ1n3R/4n3/q2prrp1/2b2Rr1/1B2bBN1/1K3n2 b - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 h5 g4 hxg4 exf5 a6 b5 axb5 Nc3 bxc4 Nb1 c3 f4 Kf7 h4 d5 a4 e5 h5 g5 a5 c2 Kd2 d3 a6 e4 h6 g3 f6 g2 f5 e3+ Kc3 d2 Kb2 e2 h7 e1R Nf3 g1R Nh4 Bb4 Ra3 Qd7 Bb5 Nh6 Nc3 Rf8 h8B Re4 Ng2 Kg8 Bg7 Nf7 Rh6 g4 Qf3 Ba5 Qe3 Nd6 Qb6 d1N+ Ka2 Bb4 Be3 c1N+ Kb1 Nd3 Bf2 Ne5 Bc6 Rf7 Nb5 Bc3 Nc7 Qe8 Bb5 Be6 Bh8 Qc6 Rb3 Qc4 Be8 Nbd7 Ra3 Rb8 Bg7 Be1 Rf3 Ne3 Bh8 Nf1 Bg7 Rf4 Bh8 Re7 f7+ Kf8 Bf6 Qa4 Bh8 Bc3 Bf6 Nec4 B6d4 Nce5 Bde3 Kg7 f8B+ Kg8 f6 Bf7 Bc1 d4 Bb2 Re6 Be7 Nf5 Bc5 Nd6 Be1 Re7 Bf2 Bc4 f7+ Kf8 Qa5 Be2 Ba7 Kg7 Qb6 Re6 Nh4 Rg3 Ng2 Re7 Rf6 Re6 f8Q+ Kh7 Qe7+ Kg8 Bg1 Nec4 Rh6 Ree4 Be3 Nce5 Bf2
Nr2r3/2R1r1Qb/3P1Q2/3qp2n/1Q2n1rk/prp1Q1Rn/7K/2qBN2B b - - 0 1 legal: proof: e4 b5 c4 d5 f4 dxc4 a4 bxa4 e5 g5 e6 fxe6 f5 e5 Qf3 e4 Qg4 Ba6 Qd1 Bc8 g4 Bh6 h4 Qd5 b3 Ba6 Bb2 Qf7 Be5 Qf8 Bf4 gxf4 g5 Bc8 g6 Bg5 hxg5 Kd7 Qf3 Qd8 Qd1 Ke8 Kf2 c5 Kg2 h5 d4 a5 f6 h4 g7 Kf7 b4 Kg6 b5 c3 b6 c4 d5 a3 f7 c2 f8Q c1Q b7 c3 Be2 f3+ Kh2 Kh5 g6 a2 Bf1 a4 Be2 e3 Qf7 h3 Qb3 a3 Nd2 Bf5 Ba6 e2 Qe6 e1R Qf6 f2 Ngf3 f1R Bd3 Rg1 Qb4 Na6 b8Q Rg4 Q8b6 Nc5 Bc2 Ne4 Bd1 Rb8 Qe3 e6 Rb1 a1R Rg1 Qd7 Rb3 Rb1 Nc4 Qb7 d6 Qd5 Nb6 Re2+ Kh1 h2 Rg3 Re1+ Kg2 h1N Kh2 Nhf2 Na8 Nh3 Rb2 Re8 Rf2 Re2 Ne1 Rb3 Rfg2 Re7 Rf2 e5 Rfg2 Reb2 Rf2 Nh6 g8Q Rb1 g7 Bh7 Qgf8 Nf5 g8B R1b2 Q6g7 Kh4 Be6 Rg8 Bd7 Rh8 Bc6 Rb1 Qff7 Rhe8 Rfg2 Neg5 Qgf6 Ng7 Rb2 Nh5 Q7g7 Qc4 Bh1 Qd5 Qbd4 Rbb8 Rb7 Rb5 Rc7 Rb3 Qf5 Ne4 Qb4 Nef6 Qf1 Ne4 Qff6+
n3q2q/Nq3rQ1/Q1b1r1Rq/1NQ1n3/1KQr1p2/3PB1Bk/1p5p/R5n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 fxe4 f5 d5 Nc3 dxc4 Nb1 g6 h4 Nf6 g4 Nd5 f6 Bg7 g5 Ne3 Bh3 Nf5 Bg4 Nh6 Bf5 gxf5 g6 Ng8 Bb2 Bh6 Bc1 Bg5 hxg5 Ra4 Rh2 Ra6 Rh1 Ra8 a4 Kd7 f7 Ke6 f8B c5 a5 b5 g7 h5 a6 b3 d3 c3 g6 b2 a7 b4 Qe2 b3 Bg5 c4 Qd2 c2 Ra5 c1Q+ Ke2 c3 Nf3 h4 Bf6 h3 Be5 c2 Rb5 h2 Ke3 Nf6 Bc7 Bb7 Ke2 e3 Nc3 b1Q Ng1 Rh4 Nh3 Nc6 Bb6 Ne8 Bc5 Rd4 Na4 Ne5 Nf2 Nc7 Qa5 Bc6 g8Q+ Kf6 g7 Kg5 Nh3+ Kh4 Nf2 e6 Ng4 Kh3 Qf7 b2 Bfd6 Qh8 g8Q Rf8 Qgg7 Na8 Qfg8 Rf7 Nc3 Qa2 Rb7 Qd5 Rb6 Qb3 Ra6 Qb7 Nb5 Qd2+ Kf1 c1N Rg1 Qc2 Ke1 e2 Bc7 Qc4 Kd2 e1R Bb8 Qd5 Kc3 Qd6 Qc7 Qf8 Ra1 Ne2+ Kb3 Qh6 Bb6 Qd8 Qd6 Qdf6 Qc5 Qfh4 Rg2 Ng1 Qc8 Ree4 Qc4 Qd8 Kb4 Qdh8 Qcf8 Re3 Qc5 Re1 Nf6 Re3 Nd5 Ree4 Ndc3 f4 Rg6 Nd7 Bd6 e5 Be7 Re2 Bh4 e4 Bg3 e3 Ra5 Ne5 Ra1 Nc7 a8Q Re1 Qgf8 e2 Qa6 Na8 Qfe7 Rf1 Qf6 e1Q Qg7 Qe4 Na7 Re1 Ncb5 Re3 Rg5 Qeg6 Rg4 Qe6 Rg5 Qee8 Rg6 Rdd7 Ra3 Nef3 Qd6 Re6 Be3 Ne5 Qdc5 Rd4 Ra1
Q5Kb/2nR4/1p2p1Pk/1b6/Bq1QNn2/1nbQn3/1prQN1q1/q1BR4 b - - 0 1 legal: proof: g4 c5 e4 a5 d4 cxd4 b4 axb4 h4 f5 g5 fxe4 f4 Ra6 f5 Rg6 f6 gxf6 h5 f5 hxg6 f4 Kd2 h5 c4 d5 a4 b6 c5 b3 g7 Kf7 a5 Kg6 c6 f3 a6 b2 c7 h4 a7 d3 Ke3 d4+ Kf4 d2 Ke5 f2 a8Q e6 Bd3 f1N Ra6 h3 Qa7 h2 Bc2 d3 Bb3 e3 Qa8 e2 Qg2 e1B Ra5 Na6 Qgf3 Qd6+ Ke4 Qb4+ Ke5 Bd7 c8Q Ne7 Ra4 Nc7 Ra7 Bb5 Qe3 Ned5 Qde2 d1Q Q3d2 Nf4 Qa8 Bc5 Bc2 Rc8 Ba4 Be3 Nc3 Bd4+ Ke4 Kh7 g6+ Kh6 g8Q Qc2 Qee3 Bh8+ Qd4 Qb1 Nge2 Qa1 Qd1 d2 Qd8 Nh3 Qc2 Nf4 Qd3 d1N Rg1 Nde3 Qdd5 Ne8 Rd7 Rc6 Qd2 Nc7 Q5c4 Rc5 Qcd3 h1Q+ Rg2 Qh3 Rg1 Nc4 Rh1 Nfe3 Rf1 Na5 Rh1 Rf5 Rg1 Rf6 Ke5 Nb3 Ne4 Qg2 Rf1 Bg3 Rd1 Be1 Q2c2 Bc3 Qcd2 Nc5 Kd6 Rf5 Ke7 Nb3+ Rd6 Rh5 Kf7 Rh1 Rd7 Rf1 Kg8 Rf2 N2g3 Re2 Qe1 Rd2 Ne2 Rc2 Qed2
5K1n/1B3np1/QN2b2p/1bp4b/R2N1q2/b4Pn1/n2BR1BQ/qk2r2B b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 e3 f5 Qc2 f4 Qd1 f3 Kf2 Qd5 Ke1 f2+ Ke2 Qd8 h4 Qxh4 Nc3 b5 Ne4 f5 Nc3 f4 Nb1 Qh2 Qe1 f3+ Kd1 Ra6 Kc2 Rf6 Bd3 f1B Qe2 f2 Qd1 Rf3 gxf3 Be6 Na3 Bf5 Nb1 Bc8 a4 Kf7 e4 Kg6 a5 h6 a6 b3+ Kc3 c6 Kd4 c3 e5+ Kg5 a7 Kf4 a8B c2 e6 b4 e7 b2 Kc5 b3 Kd6 Be6 Qe2 Qg3 Nc3 b1Q Rh2 b2 Na4 Nd7 Bb7 Ne5 Nb6 Qa2 Bf5 b1B Qa6 Bb5 Bh3 f1N Re2 Qh2 Bg2 Ng3 Bh1 Nf7+ Kc7 Qh4 e8B Ne7 Bd7 Ng6 Kc8 Qb2 Ra4+ Qd4 Kc7 Ba3 Bdc8 c5 d3+ Kf5 Bd2 Qa1 d4 c1N d5 Na2 d6 Re8 d7 Ngh8 d8Q Qf4+ Qd6 Kg5 Bd7 Bg6 Bdc8 Bh5 Bd7 Bb3 Bh3 Re3 B3g2 Be6 Rf2 Re1 Re2 Ne5 Kd8 Nef7+ Ke7 Kf5 Kf8 Kf6 Rf2 Kg5 Bb4 Kf5 Qd2 Ke5 Qe2+ Kd4 Bd2+ Nb4 Qe5+ Kd3 Ne2 Kc2 Nd4+ Kb1 Re2 Na2 Qb8 Qf5 Qf4 Qe4 Qh4 Qf4 Qh2
1bN1Q3/3pK3/3BB2b/1prP4/2qr3Q/R1r1Qqn1/pQ4NR/1b2b1rk b - - 0 1 legal: proof: f4 b5 g4 e5 a4 exf4 b4 bxa4 b5 h5 b6 hxg4 Nc3 cxb6 Nb1 b5 Kf2 Ke7 d4 Kd6 h4 Kd5 c4+ Ke4 c5 a5 h5 f5 c6 g5 h6 g3+ Kg2 g4 c7 a3 e3 a4 h7 a2 Rh3 f3+ Kh1 f4 Qe2 f2 Kg2 a3 Bb2 f3+ Kh1 g2+ Kh2 Bh6 Kg3 Ne7 Kh4 g3 Qd2 Bb7 c8Q Ra4 Qe2 Nf5+ Kg4 Qf8 Qc1 Nc6 Qce1 Ne5+ Kh5 Ng4 Kg6 Nh2 Q2d2 Qc8 Kf7 Qc4+ Kf6 Rc8 h8Q Rc5 Ne2 g1B Nf4 g2 Qdc1 Ng3 Ke7 Ba8 Qf6 Bd5 Qh4 Bf7 d5 Bg6 Be2 f1Q Be5 Bf2 Bd6 g1R Qb2 Rb4 Qec3 Be1 Qcc1 f2 Bg4 Qfe2 Be6 Kf3 e4 f1R e5 Qg2 Nc3 Bb1 Ne4 Rf2 Bc7 Rc2 Nd6 Rc3 Nc8 Qge2 Bd6 Qd1 Ne2 Kg2 Nf4+ Kh1 Qe3 Qf3 Ng2 Qce2 Bf5 Rd4 e6 Qef1 Ke8 Q1e2 e7 Qc4 Be6 Bc2 Rd1 a1B Rd3 a2 Kd8 Bb1 e8Q Rc2 Ra3 Rc3 Qc2 Bb2 Ke7 Bc1 Qb2 Bcd2 Qf2 Bdf4 Qe3 Rc6 Bb4 Bb8 Bd6 Rc5 Rxh2#
R1KbNB2/1R3qp1/b4qQP/1pk4q/n1p2n2/2Rrp1N1/b4R2/1B3Q1r b - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a5 Qc2 axb4 Qb3 Ra5 Qd1 Ra8 e4 fxe4 g4 h5 d3 exd3 Bg2 hxg4 Bh3 Rh5 Bf1 Rh8 Kd2 Kd7 Ke3 Kd6 Kd4 b5 h4 e6 a4 b3 f4 b2 a5 d2 a6 g3 f5 g2 h5 c6 a7 Qa5 h6 Be7 f6 Qa2 f7 Ba6 f8R Nf6 Bd3 Qb3 Qf1 d1Q Ne2 Nbd7 Ng3 Bd8 Nd2 b1B Ba3+ Nc5 Rh3 Nh5 Rf2 Ba2 Bb1 g1Q Bb4 Rc8 a8R Nf4 Ba3 Qh5 Nde4+ Ke7 Nd6 Na4 Ne8+ c5+ Ke4 e5 d6+ Kd7 Ra7+ Kc6 d7 Qbf7 Rb7 c4 Bf8 Ra8 Rb2 Qb6 Rf2 Be7 d8Q Kc5 Qdd1 Qbf6 Qg4 Rd8 Qg6 Rd1 Qg2 Rh1 Qf1 Qd6 Ne2 Bd8 Rc3 Qde7 Ng3 Kb4 Ke3 e4 Kd4 e3 Nf5 Ne6+ Kd5 Nf4+ Kc6 Rg8 Ned6 Qef6 Ng3 Qfd5+ Kd7 Kc5 Kc8 Qdf7 Be7 Re8 Bf8 Re4 Ne8+ Re7 Nd6 Rd7 Ne8+ Rd6 Qgd3 Bb3 Kb8 Nb2 Ra5 Ba2 Kc8 Na4 Qg6 Be7 Kb8 Rd3 Nd6 Bd8 Rd7 Bc8 Ra8 Ba6 Rb7 Nh3 Kc8 Nf4 Ne8+
2qB3r/5pn1/1kb1b1NN/2p1bp1r/R5B1/N4QnQ/P1N1Rp1K/1q3q2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Qb3 exf5 Qf3 gxf3 Kf2 Kd7 Kg3 b5 e4 g5 h4 c5 d4 Kc7 h5 b3 e5 b2 e6 b4 e7 g4 e8N+ Kb7 d6 f2 h6 b3 d7 Ra4 d5 Qa5 d8Q Qc3+ Nf3 Bd7 d6 Bg7 h7 Nc6 Be2 Nd4 Qa8+ Kb6 Nf6 Be6 Na3 b1Q d7 b2 Rh4 Qc4 d8N Qa6 Ne1 Qc8 Nec2 Rc4 Bd1 Ne2+ Kh2 Ng3 Bg5 Ra4 Nc6 Rc4 Nh5 Nf6 Ne7 Ne8 Qf3 Be5 Nf6 Ng7 Ng6 Re4 Be2 Qf1 Rc1 b1B Ng8 Rf4 Nh6 Rb4 Ne3 Be4 Rc2 Bc6 Rd2 Re4 Nec2 Qb1 Bd1 Re1 Re2 Rh1+ Kg2 Ne4 Bf6 g3 Rg4 Rh5 Rf4 Re8 h8Q Rg8 Bh4 Rf8 Kh1 g2+ Kh2 Ng3 Ra4 g1Q+ Kh3 Qf1+ Kh2 Rg8 Qh7 Ne8 Qh8 Ba1 Qhc3 Ng7 Qce3 Rh8 Qd3 Nh1 Qh3 Ng3 Qf3 Bb2 Bd8+ Qc7 Qg2 Kb7 Re5 Qc8 Bg4 Bd4 Re2 Be5 Be7 Kc7 Qf3 Kb6 Bd8+
3b3Q/b3r2p/R1n2p1B/pQpN4/NR1q1B2/nKn2B2/Pn4B1/b3k2r b - - 0 1 legal: proof: f4 e5 c4 exf4 d3 b5 g3 bxc4 Qa4 cxd3 Qb3 Ba3 Qd1 Bf8 h3 fxg3 Rh2 g5 Rh1 g4 Qb3 g2 Qa4 Ba6 Qd1 Bc8 Nc3 g3 Nb1 Bb7 Kd2 Bf3 Ke1 Bg4 hxg4 Ba3 Be3 Bc5 Bc1 Bf8 Kd2 Ke7 Kc3 Ke6 b4 Kd5 g5 Ke4 g6 a5 b5 d5 e3 d4+ Kb2 d2 b6 f6 b7 d3 g7 Ra7 Nh3 g1B Qe1 Kf3 e4 d1N+ Kb3 g2 e5 d2 e6 Bd4 e7 g1B e8B Na6 b8B Nb2 Qe7 d1N Bg5 Nc3 Qb4 Ne7 g8Q Nc6 Nf4 Kf2 Qb5 Ke1 Rh4 Be7 Bh6 Nab4 Bh5 Nc2 Bg2 Na3 Bhf3 Be5 Qg7 Rg8 Qh8 Qd4 Nd5 Bd8 Rf4 Rg3 Rg4 Rh3 Rg7 Ncd1 Nbc3 Rh1 Rb1 Be3 Na4 Bf2 Bc1 Nc3 Bh6+ Nbd1 Qc4 Qd2 Ne3 Nd5 Nf5 Ba1 Ne7 Nc3 Qb5 Ne5 Nd5 Bc5 Rd7 Qd4 Rd6 c6 Re6 Re7 Bc7 Ba7 Rd6 c5 Ra6 Nac4 Kc2 Nc6 Rb4 Ndb2 Bcf4 Na3+ Kb3
RrN4k/2p4q/1Br4b/1K3pQ1/2n2N2/5pNB/pnQ1rPR1/q1b1N1r1 b - - 0 1 legal: proof: h4 b5 a4 bxa4 c4 d5 h5 dxc4 b3 a3 h6 gxh6 Rh2 h5 Rh1 h4 Rh2 a5 Bb2 e5 Bc1 a2 Rh1 a4 Qc2 a3 Qf5 Bd7 Qf4 Ba4 bxa4 exf4 e4 f5 Ke2 Kf7 d4 Kg7 g4 h5 d5 c3 Kd3 c2 Kc4 h3 e5 f3 g5 h2 d6 h4 d7 h3 g6 Ra7 e6 Rh7 e7 Kh8 e8Q Bc5 a5 Na6 Qe2 Nh6 Kb5 Ng4 Be3 c1B Qc2 Nb4 a6 Ne5 Ne2 Qh4 d8N Nc4 Ng3 Rh6 Ne6 Bf8 Nf4 Rb7+ Bb6 Rb8 a7 Nd3 a8N Ndb2 Rg1 h1R Rg2 h2 g7+ Kh7 Ngh5 Rg1 Ng3 Rc6 g8Q+ Kh6 Nc3 h1R Qg5+ Kh7 Ncd5 Bh6 Nb4 Kh8 Nbd3 Qh5 Ne1 Rh4 Nd5 Re4 Nf4 Qf7 Rh2 Re2 Bh3 Qh7 Rg2 Rd8 Be3 Rf8 Nb6 Rg8 Nc8 Rd8 Rb1 a1Q Bc5 a2 Bb6 Nd1 Rb3 Ndb2 Ra3 Rde8 Ra8 Rf8 Nd6 Rb8 Nc8
1B4k1/1nRNB2B/1PN2nr1/1ppqQ3/6q1/2B1r1p1/b1pR4/KQ1q1q1q b - - 0 1 illegal: No possible last move
2n5/1Qb1nb2/np5b/P3pq1R/K1RBR2R/2N2rN1/1p1n3p/1Qqk2B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 fxe4 f5 c5 Na3 cxd4 Nb1 g6 h4 Kf7 g4 Qe8 f6 Ra6 g5 Ra8 Bh3 Qd8 Bg4 Ra3 Bf5 gxf5 g6+ Ke8 Nd2 Rg3 Nb1 Rg5 hxg5 Bh6 Ne2 Bg7 Ng1 Bf8 Kd2 h5 c4 e5 Kc2 d5 Kb3 Kd7 a4 Kc6 c5 f4 f7 h4 g7 e3 g6 d3 Rh2 e2 Ra2 e1B Ra1 h3 Rg2 d2 Rg4 h2 Rh4 d4 Rh6 Kd5 c6 Ke4 c7 Ke3 Na3 d3 Nh3 f3 Qc2 Ke2 Qc5 d1N Be3 d2 Qe7 f2 Rh4 f1N Ng5 Na6 Nb5 Nc3 Bd4 Qd7 Ne4 Nd5 a5 b6 Rh5 Bh4 Ra4 Kd1 Ng3 Qf5 Qd7 Bd6 f8B Nge7 g8Q Bg5 g7 Bh6 Qh7 Rg8 Qc6 Be6 c8R Bf7 Qb7 Bc7 Qg6 Rh8 g8R Rh7 Rh8 Rg7 Rb8 Nc8 Bfc5 Rg8 Rh4 Rf8 Bg1 Nde7+ Rc4 Be3 Rh4 Bg5 Bcd4 Bh6 Ka2 b3+ Ka3 b2 Nc3+ Kc1 Rh5 d1Q Rab4 Kc2 Ka4 Nd2 Ra8 Qc1 Qh7 Na7 Rd8 Nac8 Rd6 Bf4 Rdh6 Be3 Rh4 Bf4 R6h5 Bh6 Nd5+ Kd1 Qg6 Qh3 Qb1 Qf5 Nc3+ Ke1 Qa8 Qf4 Rc6 Ba2 Qb7 Rf6 Rc5 Bf7 Bde3 Qe4 Rd4 Rf3 Rcc4 Qf4 Re4 Qf5 Nd5 Kd1 Bc5 Be6 Bcd4 Bf7 Nc3+
b1BR2NK/b1P1q2Q/1N1N1p2/3p4/q3Qq2/1pb1q1nn/pN1R1k2/5Br1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 f5 c5 b5 e6 Bb2 exf5 Ba3 f4 c4 a5 d4 d6 b6 Nd7 d5 Nb8 Bb4 cxb4 c5 Ra7 Na3 Rc7 Nb1 Rc6 dxc6 Bg4 Qb3 Bf5 Qd1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 h5 b7 a3 c7 f6 c6 a4 e3 b3 Bb5 h3 Ra2 Kh4 g5 Kg3 g6 d5+ Kd4 h2 g7 h4 e4 h3 e5 f3 e6 f2 e7 f1Q e8Q Nd7 b8N Bb7 c8B Qe7 c7 Nc5 Bg4 Ne6+ Ke3 Nh6 g8N Nf4+ Be6 Ba8 Rd2 a2 Qc2 a1B Nf3 a3 Ne1 a2 Nd3 Bc3 Na3 Qc1 Re1 h1Q Nd7 h2 Nc4 Nh3 Ndb6 Qf1 Nd6 h1Q Nb2 Qc4 Qh7 Qhf1 Re2 Qa4 Rh2 Qf5 Bf1 Qfg4 Rh1 Qf5 Qeg6+ Qfg4 Qe4 Nf5+ Kd3 Qf4 Bc8 Nd4 Rhh2 Ne2 Rh1 Kf2 Rg1 Qee5 Rg7 Qee8 Rd7 Qe7 Rd8 Bb4 Rd1 Ng3 Kd4 Bc3+ Kc5 Qce3+ Rd4 Qef3 Rd2+ Qe2 Qf7 Rh6 Qfh7 Rg6 N6c4 Bh6 Qh1 Nf5 Qe4 Qf7 Ne8 Qh2 Qb1 Rg1 Qe4 Ng3 Kd6 Be3 Qg7 Qf8+ Ke6 Ba7 Nb6 Nh5 Nd6 Qf4 Qh7 Ng3 Nh6 Qh8 Kf7 Qhe8+ Kg7 Qee5 Kh8 Qe7 Rd3 Qe1 Ng8 Qee3 Rd2+
2Q3B1/1bpK1Rn1/b5pn/Nr1Np2b/b1B2b1R/N2N1P2/1qbp4/3k3Q b - - 0 1 illegal: No proof kernel
3bBR2/2nbn3/Q1q5/2B3PK/q3R2b/1nn2N1r/nn2B1B1/rQ1q1Nnk b - - 0 1 illegal: No possible last move
n4r2/1nqN2Kb/1bqqkQQ1/1bQ3R1/n1qP1q1B/8/Q4R1N/qr1B1r2 b - - 0 1 illegal: No possible last move
3BR2q/1B1n1qq1/b2B1b2/qRr3P1/br3n2/K4Q2/n1qrN3/QBkN3q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kg6 a4 Kf5 c4 b5 Kc2 e5 Kb3 d5 c5 h5 c6 h3 c7 d3 g3 h4 a5 d2 a6 d4 a7 h2 Ra6 e3 g4+ Ke4 g5 e2 f5 Ke3 f6 e1Q f7 h3 Qc2 d3 Ra2 e4 Ra6 Qd7 Rb6 Bg7 f8B Qf2 Rc6 Ne7 Nf3 Bf6 Qc4 Rh4 Qg8 Nd5 Bb2 d1B+ Ka2 d2 Nd4 b3+ Ka3 b4+ Ka4 Nf4 Qg6 Qg7 Bb5 Ba6 c8Q Nd7 Ba3 b2+ Rc2 b3 Rg1 h1Q Rf1 h2 Qc4 Rc8 a8B Rc5 Nc3 b1Q Bac6 b2 Qb3 Rg4 Rc1 Qc2 Kb4 b1N Bb7 Rh4 Ba4 Kd3 Qe8 e3 Bd6 e2 Qa8 e1Q Nde2 Qff3 Bac6 Qh5 Bc7 Qhf7 Bd8 Ke3 Be4 Rg4 Nb5+ Nc3 Rb1 Rh4 Bd3 Na2+ Ka4 Rg4 Nbc3 Rh4 Bb4 Rg4 Ka3 Rh4 Bc8 Rg4 Qa7 Qa8 Bb7 h1Q Qd5 Qeh4 Re1 Qhh8 Qb8 Qa7 Qa8 Qb6 Qb3 Qa5+ Qa4 Rb5 Bbe7 Rc5 Rb5 Qb1 Bc6 Nh3 Bd6 Rb4 Qb7 Nf4 Ng1+ Ne2 Bh7 Nc1 Bd5 Qbg6 Bg2 Bb3 Kb2 d1R Qa1 Ba4+ Ka3 Kd2 Bc6 Nf4 Re8 Qd3 Ne2 Na2 Bg2 Qdc4 Bb1 Qe4 Qd5+ Qd3 Qb3 Qdg6 Bb7 Qc2 Ng1 Kc1 Qd5 Nh3 Qf3 Rd2 Nd1 Nf4 Ne2+
N7/br3q1B/1r3P1B/rRrRbqq1/2b4r/3RNQ1r/R1Q4n/n1K3kn b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 a5 b5 g5 h5 f5 e3+ Ke1 Ke4 c4 d5 a6 e2 Kd2 e1R c5 h3 a7 h4 c6 h2 g6 h3 g7 b3 c7 b2 Ne2 Kf3 Na3 Kf2 Qa4 b1Q Nc4 e4 Nf4 d3 Ne3 b4 Qd7 d4 Qd6 b3 Nh5 b2 Nf6 Ba6 c8R Rh4 Rc6 Nh6 g8R Ng4 Nfd5 Qg5 f6 Bc4 Ne7 Nd7 Bg2 Nc5 Rg1 h1N Ra4 h2 Ng6 Qa2 Qe5 b1R+ Bb2 Rec1 Nf4 Bd6 Qe7 Be5 Ne6 Rc3 Rc1 Nb3+ Kd1 d2 Bf3 Na1 Bg2 Kg1 Nc2 e3 Ba3 Rb7 Rb1 Rcb3 Rd6 R3b6 Qf8 Rc8 a8Q Rc5 Bf1 Qb3 Bc1 Qd3 Rd8 Qdf5 Bd3 Ra5 Ke2 d1R Rb5 Rf1 Bd2 Rc1 Nc7 Rh3 Ra2 Rh4 Na3 Rc3 Ke1 e2 Nc2 Rh3 Be4 d3 Rdd5 Rh4 Bf4 Rh3 Kd2 e1B+ Kd1 d2 Qc5+ Bf2 Rgd8 Rh4 R8d6 Rch3 Rd3 Be3 R6d5 Bf2 Ke2 d1R Ne3 Rc1 Kd2 Bb3 Ra4 Qgg6 Qh8 Re6 Qg7 Qf7 Ra3 Ng3 Nd1 Qh7 Qc2 Ba7 Ra2 Reb6 Qb1 Rc5 Qc2 Bc4 Kc1 h1Q Bh6 Nh2 Na8 Qg2 Ne3 Nh1 Qg4 Qg3 Qf3 Qg5 Bf5 Qhg6 Bg4 Qe4 Bf5 Qef4 Bg6 Qff5 Bh7
b1b3qb/K1P1rr1n/1r1q1N2/1BbR4/1R3Q2/Qb2kqNN/1Nnn1b2/B7 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 c4 d5 a4 g5 h4 f5 c5 f3 e3 f4 c6 b3 a5 d3 h5 d4 a6 g3 h6 b2 a7 g2 h7 d2 Nh3 g1B Be2 g4 Qe1 d1Q Qc3 g3 c7 g2 Qb3 d3 Bf1 f2 Be2 f1R Kb6 d2 Bh5 f3 Ra3 f2 Rh2 Na6 Be8 Bg7 Ra5 Nb4 Rd5 Rb8 a8Q Nf6 Rb5 Nc2 Qba3 Rf8 Qa1 Re1 Q8a3 f1Q Rb3 Rf7 h8N Nh7 Ka7 b5 Ng6 b4 Ngf4 Qff3 Nd3 Rb6 Bb5 Bh8 Qa4 Qg5 Q1a3 Qg8 Rh1 Bf2 Nc3+ Kf5 Ne4 b1N Rb2 b3 Qd4 Kg4 Qe5 Re2 Ng3 Re1 e4 Bc5 Qe8 g1B e5 Bgf2 e6 Re5 e7 Re3 Ne2 Kf5 Rg1 Ke4 Ng3+ Kd4 Ba6 Re4 Qea4+ Ke3 e8N Ree7 Qc4 Qd5 Rf1 Q1f3 Rd1 Qe6 Bb5 Qd6 Ra2 b2 Nf6 Nc3 Ra1 Ne4 Qca4 b1B Qc4 Ba2 Rb1 Qh1 Rb2 Qf3 Rb4 Bb3 Bb2 Re6 Ba1 Ree7 Qe6 Bd5 Qf5 Ba8 Rf1 d1B Qe5 Nd4 Nb2+ Bb3 Rd1 Nc2 Qf5 Qdd8 Rd2 Qd6 Rd5 Nd2 Qf4+
rqR4K/1nq1b1r1/1N4RQ/8/2Rn2Bq/1rNQr1P1/R1rBbb2/b2k3b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Ke6 a4 Kf5 f4 Kg4 f5 b5 c5 e5 f6 d5 g3 h5 a5 e3 Kd3+ e2 f7 h3 c6 h2 a6 b3 a7 e4+ Kd2 d3 Ke3 h4 Kd4 d2 Ke5 b4 c7 e3 Bb2 h3 Ba3 b2 Qa4 d1R Ra2 e1B Nf3 d4 Qb5 e2 Qb7 b3 Rg1 h1B Qa6 h2 Bc5 d3 Bd6 d2 Nc3 b1Q Be7 b2 Ra5 Nh6 Kf6 Nc6 Na4 Bf2 Nd4 e1B Nb6 Rg8 Rh5 Rg7 Qa5 Rc1 Nc4 d1R Qb5 Na5 Qb7 Rc2 Nb6 Bc3 Qa6 Nb7 Qd3 Nf5 Rh6 Re1 Rg2 Be6 c8R Qc7 Bb4 Bc4 Rg1 Re5 Ne2 Nd4 Ba5 Bc5 f8Q Re3 Bh3+ Kf3 Rg6 B5b4 Rc1 Bb5 Nf4 Bc4 Nfd5 Bd6 Qe4+ Ke2 Bg4+ Kd2 Qh8 Be2 Qh6 Bc5 Kg5 Be7+ Kh5 Bcb4 Nc3 Bf6 Qd5 Bbe7 Qd6 Qa1 Qd5 b1R Qf5 Rb3 Qb5 Rb8 a8R Qb2 Bb4 Be5 Ra2 Ra8 Ba5 Qa3 Bb4 Qa7 Ba5 Qab8 Qc4 Bd1 Qd3+ Ke1 Ncd5+ Rcc3 Rb2 Nc6 Qg5 Bg2 Kh6 h1Q+ Qh5 Qh4 Ra2 Bh1 Rcc2 Be2 Bb4 Rg8 Kh7 Rg7+ Kh8 B5f6 Qh6 Bd4 Qe4 Kd1 Ba5 Rc5 Bd2 Ba1 Qd3 Nd4 Rc3 Rca5 Rcc6 Ra4 Rc5 Rc4 Rcc6 Rcc3 Rc4 Rc2 Nc3+
1qn2bQK/bBBnq1R1/8/2BBPk1Q/5r1b/3Nr2N/3Rrn1n/n5bb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 a4 c5 e4 g5 d4 b5 a5 f5 h5 f3 Ke3 c3 h6 b3 h7 f2 e5 f4+ Ke4 c2 a6 g3 a7 g2 Rh4 f3 Ra3 b4 Bb2 c1N Rh1 c4 Bd3 f1R Ra1 c3 Ra4 f2 Nd2 c2 Nc4 g4 Na5 g3 Qd2 Bb7+ Kf4 Qe7 Ba1 b2 Qe2 b1Q Nc4 b3 Na5 b2 Be4 Nd7 Bf3 Nb3 Nh3 g1B Rh2 g2 Nc6 c1B+ Kg4 Rc8 Kh5 Bg5 a8B Bh4 d5+ Kf5 Nb4 Rc3 d6 Re3 Ra7 Re1 Bc6 f1N Bd5 Bc6 Qd1 R1e2 Bb7 Bgf2 Nd3 g1B Rg2 Nh2 Rg7 Ng4 Ra2 Nh2 Bf7 Bh1 Bfd5 Nb6 d7 Nc8 d8B Nf6+ Kh6 Nd7 Bc7 Rg8 Kh5 Rh8 Rg6 Rg8 h8Q Rg7 Rg2 Rg4 Qg8 Rf4 Rg6 Rg3 Rg7 Ba7 Kh6 Rge3 Kh7 Qc2 Nc1 b1N Bb2 Na1 Bd4 Nd2 Nd3 Qb1 Kh8 Ne4 Rd2 Nf2 Bc5 Qb3 Ba8 Qb8 Bab7 Re1 Qf3 R1e2 Qh5+
2NQ1NRB/1PKnrr1k/6nB/8/qbBq1rbr/2b4q/Qb1Rb3/4r1B1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 f4 Kg6 c4 e5 b4 a5 h4 d5 b5 e3 Kd3 e2 f5+ Kh7 h5 e1R b6 g5 h6 g3 f6 g4 c5 g2 f7 a3 c6 a2 b7 g3 c7 e4+ Kd2 e3+ Kd3 a4 Qd2 e2 Qf4 a3 Rh3 Ra4 Bd2 Qd7 Qd6 Ne7 Rh5 Ng6 Nc3 Qh3 Qe5 Bg4 c8Q Nd7 Rc1 a1B Nb5 a2 Rd1 Bc3 Qe6 a1B Rg5 Bab2 Na7 Bfb4 Nf3 g1R f8B g2 Bc5 Rh1 Qb8 g1Q Qd8 Rf8 Nc8 Rf7 Be3 Qf2 Rd2 Qfh4 Bg1 Qf2 Bf8 Qe3+ Kc2 d3+ Kb3 d4 Kc4 Rh2 Kd5 Qf2 Rd1 d2 Kc6 d3 Qa2 Qd4 Kc7 Rh1 Rc1 d1B Rc2 d2 Bg7 Qe4 Nd4 Qed3 Ne6 Qd4 Bg2 Rh2 Bd5 Rhf2 Bc4 R2f4 Qe8 Ref1 Bf8 e1R Qd8 Bde2 Bg7 d1Q Rd2 Re7 Bf8 Nh4 Rg8 Rff7 Bg7 R1f4 Bf8 Ra5 Bg7 Rh5 Bf8 Qa4 Bg7 Kg6 h7 Rh6 h8B Kh7 Bf8 Ng6 Bfg7 Rh5 Bh6 Rh4 Nf8+
Q1n1b1r1/Qqqk2nr/1N1brbn1/5BQ1/2QN4/BK2bn2/1P3Rnq/4R3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 e4 f5 c4 g5 Kc2 a5 h4 f3 e5 f4 e6 a3 h5 d3+ Kc3 d4+ Kb3 a4+ Ka2 f2 e7 d2 h6 d3 c5 f3 c6 g3 h7 g4 c7 g2 Ne2 g1B Rh6 g3 Nec3 g2 Ne4 Nc6 Rf6 Kd7 Rf5 Ne5 Nbc3 Ng6 Qe2 d1Q Bh6 d2 Rb5 Qc2 Ng3 d1N Rb6 Ne3 Qa6 Nf5 Bd3 f1N Rb1 f2 Ra1 Nd2 Rb7 f1N Qc4 Ng7 Qb3 Bd4 Nd5 g1B Nf5 Ne3 Nc3 Ng2 Be4 Bf6 Rb1 Nf3 Bd3 Be3 Nd5 Qc6 Rb6 Qb7 Nd4 Ra7 Rb4 Ra6 Re1 Re6 Kb1 a2+ Kc2 a1Q Bf5 a3 Qc4 a2 Kb3 Qc1 Bg5 a1R e8Q+ Kd6 Qeb5 Qd2 Qbc5+ Kd7 Qa7 Bd6 Qcc5 N8e7 Nb6+ Ke8 Qc1 Rg8 h8Q Bd7 c8Q Ra2 Q8c4 Qdc7 Rb5 Nc8 Re5 Qe2 Re4 Kd8 Rf4 Be8 Bh4 Ra1 Qd2 Rd1 Qda5 Qd2 Qh6 Qf2 Qg5 Qg3 Qa8 Qh2 Q5a7 Ra1 Re2 Rh1 Re1 Qg1 Bg3 Rh7 Bf2 Qh2 Bg3 Ng1 Rf2 Nf3 Bf4 Bf8 Bd6 B8e7 Ba3 Bd6 Kc2 Ke7 Nd5+ Kd7 Kc3 Bb4+ Kb3 Bd6+ Nb6+
1n1Q3r/6QR/Nr1b1b1r/2R2Brn/2k1N2K/B1n1rP2/r1N1n1q1/Nr5b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 a4 Kf7 g4 Ke6 c4 d5 c5 h5 c6 b5 g5 b3 g6 b2 c7 d3 g7 d2+ Ke2 b4 a5 h3 a6 b3 a7 e3 Kf3 e2 Kg3 e1B Bg2 h4+ Kg4 d4 Ra4 d3 Qf3 d1R Bg5 h2 Bf1 h3 Bf6 d2 Ra2 Bb7 c8N Qd5 Be5 Nf6+ Kg3 Rc1 g8N d1N Ra1 Rc5 Qg2 Bc3 Na3 b1N Ra2 b2 Nb5 Qc6 Nf3 Kd5 Bf4 e5 Nbd4 e4 Bb5 e3 Nb3 e2 Bc1 e1R Bd3 Re5 Bh7 Re3 Ra5 Kc4 Na1 Rce5 Nge7 Re6 Rf1 h1R Bf5 h2 Nd5 Rg1 Nc7 h1R Re1 Qe4 Re2 Ra6 Rd2 Ba3 Rd7 R1h6 Rh7 Nh5+ Kh3 Rad6 Qg7 Rg5 Rd5 Qc2 Kh4 Bf6 Nd4 Rde6 Ra5 Bh1 f3 Qg2 Ndc2 Rc6 Ne7 Bc5 Ned5 Bf8 Nc3 Rd6 Qd7 Rde6 Qd8 Rb6 Ne4 Bd6 Rb5 Nf2 Re5 Nh3 Rd5 Nc3 Rb5 b1R Rc5+ Kd3 Bb2 N3f4 Bc1 Nfe2 Bb2 Ra6 Bc1 Ra2 Ba3 Nc6 Na6 Rab8 a8Q R8b6 Qb7 Nb8 Re5 Kc4 Qg7 Bde7 Rb5 Bd6 Rc5+
1Q2n1n1/B1rR1n2/BbnrB3/4N1b1/2rP2bn/R4b2/n2N1KQn/1Bkq4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 Ke6 g4 Ke5 g5 Kd4 a5 b5 a6 h5 g6 c5 a7 f5 e5 h3 g7 c3 e6 c2 e7 b3 e8B b4 d3 f3 Ra2 h4 Rh2 f4 Rh1 f2+ Ke2 f3+ Kd2 b2 Bc6 c4 Ra6 h2 Be8 h3 Rh6 b3 Re6 Nc6 Bg2 f1N+ Ke1 c3 Bf4 c1B Bh5 f2+ Ke2 c2 Kf3 Rh6 Bg4 Ne3 Qe2 f1N Bg5 Nf5 Kf2 Nd6 Bh4 Nf7 Na3 Kc3 Bg5 b1N Ke1 Kb2 Rg6 Bc5 Qf3 Nc3 Qe4 Na2 Qa4 Bb6 Bh4 Bg5 B2f3 Kc1 Rd6 b2 Bf2 b1N Qb3 Nbc3 Bf5 Nb5 Nc4 Nc7 Ne5 Ne8 Rd7 Rd6 Be2 Rb8 a8B Rb7 Ngf3 Rc7 Rg1 h1N Be6 h2 Nd2 Nhg3 Bc5 h1B d4 Bf3 Ba6 Qe7 Kf2 Nf5 Rg3 Nh4 B8b7 Qf8 Bd3 Nh2 Bba6 Ba5 Ba7 Bb6 Qd5 Qe7 Bh7 Qf6 Qe4 Qf5 Qg4 Qd3 Qh3 Qb3 Qg2 Qd3 Nf1 Qd1 Nd2 Kb2 Rh3 c1R Bb1 Rc4 Rg3 Ngf6 g8Q Kc1 Qf8 Ng8 Rh3 Bb7 Rg3 Bg4 Rh3 Ncb4 Ra3 Bbf3 Bd3 Nc6 Bb1 Nef6 Qa8 Ne8 Qb8
1k3bqR/3r2n1/Rn1b1K2/BR2rBR1/1n4QN/2r4n/1b1Pn1b1/N1Qbn3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 h5 Ke4 b5 Ke5 c5 a4 Kc7 g4 f5 e4 c3 a5 b3 g5 c2 a6 b4 g6 h3 a7 h4 g7 b2 Bg2 f3 Ra4 b3 Ra5 f2 Qf1 f4 Nf3 h2 Qe1 f1R Ra6 h3 Ng1 f3 Rg6 f2 Qd1 c4 Rf6 c3 Qe2 Na6 Qe1 Nh6 g8R Nb4 Rg3 Rh7 Rfg6 Bg4 Re3 Bd1 Qe2 Rc8 a8R Rd7 Qg4 Nf5 Rb6 Ng7 Rd3 Re1 Rg6 f1B Ra5 Kb8 Na3 b1N Rd4 b2 Nb5 Na3 Nf3 b1N Bb2 c1B Nd6 c2 Nh4 Nc3 Nb7 Na4 Nc5 Nb6 Bc3 Bb2 Rd5 c1B Rb5 Nac2 Nb3 Rcc7 Bf3 Bg2 Na1 Re2 Rg5 Ne1 Rd6 Ba3 Rf6 Bcb2 Rc6 Qe8+ Kf6 Bd6 e5 Qg8 e6 Re5 e7 Rc8 Rg1 h1N e8Q h2 Be4 Nf2 Rh1 Nh3 Bf5 Bf8 Qf7 Rcc7 Qfc4 Rc8 Rg1 h1N Rd6 Ng3 Rh1 Ne2 Rc6 Nbd3 Ba5 Bad6 Qc1 Nb4 Rbc5 Na4 Ra6 Nb6 Rb5 Rc3 Ng6 Nhg1 Rh8 Nh3 Nh4
Nb1N1B2/3rr3/2r5/r5Rn/rn2P1n1/3kqbQK/1bB3RQ/n1R1rnR1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Ke6 h4 Kf5 c4 Ke4 a4 b5 e3 f5 h5 d5 h6 g5 h7 d3 a5 d2 c5 d4 a6 g3 a7 g4 c6 b3 c7 b2 Nf3 b4 Rh4 d3 Qa4 d1N Ne1 f3+ Kh1 d2 Qa2 b3 Rh2 g2+ Kg1 f4 Nd3 Nf2 Nb4 d1R Nd3 Bd6 Na3 b1N Nb2 Qg5 Na4 b2 Qf7 Nc6 Rh5 Nf6 Kh2 g1R Nc2 Nb4 Na3 Bb7 c8R Re8 h8R Nd2 R5h7 b1R Qg8 Re7 Qf7 Nb3 Rce8 Bb8 Rh5 Rd7 Rhg8 Qc5 Bh3 Re1 Rhg5 Nh5 Nc2 Kd3 Ba3 Rbc1 Qg6+ Be4 Ra2 Na1 Rc8 Qb6 Nd4 Rc6 Re2 Qc5 Ne6 Qc1 Bf1 g3+ Kg1 g2 Kh2 Ng4+ Kh3 g1B Nb6 f2 Nd8 f3 Qh7 Bf5 e4 Qe3 Qh8 Be6 Qe5 Bb3 Qg3 Bd1 R8g6 Bh2 Rg7 Be5 Rc7 Bb2 R7g6 Rb8 Na8 Rb5 Rg7 Ra5 Rd2+ Kc3 Bd3 f1N Rg2 f2 Bc2 Bf3 Rc8 Na6 Bc5 Nb4 Bd6 Re6 Bf8 Ree7 Nb6 Kd2 a8Q Kc3 Qab8 Ra4 Bd1 Kd3 Na8 Ra5 Qh4 Bc7 Qg3 Bce5 R7g6 Bf4 Qe5 Ra4 Qh8 Bb8 Bc2+ Kd2 Qhe5 Ngh2 Bd3 Ra5 Rg1 Rc2 Rc5 Bc1 Qgf4 Nfg3 Rd5 Rc6 Rgd6 Ng4 Rc5 Ba3 Rd4 Bc1 Bb1+ Ke2 Rdc4 Kd2 Rc2+ Kd3 Nb6 Re2 Qb2 f1R Na8 Rfe1 Qbe5 Nf1 Qh2 Rd2 Qeg3 Rf2 Ba2 Rfe2 Bb3 Ba3 Rc1 Ra2 R5c2 Bb2 Rcg2 R2a4 Bc2+
3nbbq1/3rPb1N/1R3Rb1/2Nrkn2/1Q3b2/1K1R1r2/Rnn3BB/3bn2Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Ke6 c4 d5 Kc2 f5 a4 g5 h4 b5 a5 d3+ Kb2 d4 c5 f3 h5 b3 c6 d2 e5 f2 a6 f4 c7 d3 h6 g3 a7 f3 h7 g2 Ra2 b4 Ne2 g1N Nbc3 g4 Nd5 g3 Ndc3 g2 Ra3 Bd7 c8Q Nc6 Ra5 Nge7 Rd5 Nf5 Qe1 d1N+ Ka1 d2 Rb5 b2+ Ka2 b1N Rh3 b3+ Ka1 b2+ Ka2 Na3 Kb3 b1B Ra5 Nc2 Qb7 Nb2 Ra4 d1B Ng3 Be8 Nd5 Rb8 Qb5 Rb7 a8R Rd7 Bf4 Qg5 Qba5 Nd8 Rb4 Qg8 Nf6 Bf7 Nge4 Be8 Be2 f1R Bh2 f2 Rd3 Nf3 Qa3 g1B Rb6+ Nc6 Qeb4 Nfe1 Qa1 Bf7 Ra2 Rd5 Bf4 Bh2 Bf3 Rd7 Bg2 Bg3 Be3 Bf4 Bc5 Rd5 Bd6 Nd8 Bc7+ Nd6 Bb8 Kf5 e6 Ke5 e7 Be8 Ba7 Nf5 Nc5 Rh1 Ra3 f1B Ra2 Rh3 Bb8+ Nd6 Bc7 Rf3 Bh1 Bh3 Bg2 Be6 Bb8 B6f7 Bc7 Qg3 Bb8 Rg8 h8R Qg6 Rh1 Rh8 Rh6 Qg8 Rg6 Rh4 Nh7 Rh2 Ba7 Nf5 Rgd6 Rh1 Bb8 Rhf1 Bc7 R1f2 Bb8 Rd2 Rf6+ Rd6+ Kc3 Ng3 Ba7 Nb7 Ne4 Nd8 Rba6 Be2 Bg1 Nd4 Re3 Ned3 Bh3 Rd7 Bg2 Bc2 Qf1 Bed1 Bh2 Ne1 Nc5+ Be4 Rab6 Ndc2 Qg1 R2d5 Rd3 Beg6 Kb3 Nf5 Qh1
3bRkb1/1bq4q/2Pn3N/QNB3bn/3n3r/K1b1RB2/Q2Q3r/b1Qb2n1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 h4 e5 c4 d5 Kc2 b5 Kb2 g3 f4 g4 a4 b3 f5 b4 f6 g2 h5 d3 h6 g3 a5 e3 h7 e4 c5 d2 a6 e2 a7 e1B Rh4 d4 Qf3 d1B Rh6 e3 Bd3 e2 Rg6 Be7 f7+ Kf8 Rg4 Nc6 Bc4 d3 Bd2 Bg5 Ba6 Qc7 Qf5 Nf6 Qf2 Nd4 c6 Bb7 Bc4 Nh5 Nf3 g1N Ra6 g2 Qf1 Beh4 Re4 e1B Be3 d2 Ra3 Be2 Re6 d1B Bd5 Bc4 Nc3 Rd8 Nb5 Bc3+ Kb1 b2 a8Q Rb8 Nh2 Bd8 Qa5 Bhg5 Ng4 Ra8 Qb6 Ra4 Bf3 Bcb3 Re4 Bd5 Qc4 Be6 Ka2 b1N Re5 Nd2 Nh6 Ne4 Qa5 Nd6 Bf2 Bcd2 Kb2 b3 Qc1 Bd5 Re3 Rc4 Ra1 Bc3+ Ka3 b2 Ra2 b1Q Rae2 N4f5 Qd2 Rh4 Re1 Nd4 Qa2 Rg8 h8Q Qh7 Qf6 Rh8 Qf4 Nh3 Qh2 g1B Qg2 Bh2 Bg1 Bg3 Qgd2 Ba1 R1e2 Be1 Bf2 Ng1 Re8+ Kg7 R2e3 B5b3 Qc1 Bec3 f8Q+ Kg6 Qa4 Bg8 Qf4 Kg7 Qa5 Rh2 Re1 Rh4 Qfd2 Rh2 R1e3 Rh4 R8e4 Kf8 Re7 Rh2 Re8+ Kg7 Qdc2 N4f5 R8e6 Nhg3 R3e4 Qg6 Q2d2 Kf8 Bc5 Nd4 Nf5 R8h4 Re3 Nh5 Nh6 Qgh7 Re8+
kr1q1rb1/q1R3Pb/R1QbN2B/3Nnn2/1q5q/2q1Q1NN/1qB1K1bq/8 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 c4 f5 a4 d5 e4 Kd7 g4 Kc7 a5 b5 g5 Kb7 c5 h5 e5 b3 g6 d3 e6 h3 e7 d4 e8N b4 Qe2 d2+ Kf2 d1Q Qe3 d3 Qd2 h2 Be2 f3 Nc7 f4 Nh3 h4 Qa2 b2 Qa3 d2 Ne6 b3 Bf1 Nc6 g7 Nge7 Qa4 Rb8 Ra2 Ne5 Bc4 Qc2 Rd1 h1Q Ng1 h3 Re1 d1Q+ Be2 h2 Ng5 Bf5 N5h3 Bh7 Qa3 Nf5 Nc3 b1Q Nd5 b2 Ng5 Bd6 Ne4 Rf8 Ng3 Qd4+ Be3 Bg8 Rc1 Qb4 a6+ Ka7 Kf1 f2 Bd1 Qca4 Ke2 f1B+ Kf2 f3 Bh6 Qab3 c6 Bg2 c7 Qa1 c8Q Bh7 Ne7 b1Q Qc2 Q3c4 Qe3+ Qcd4 Qc3 Qb1b2+ Rc2 Qac1 Ke1 f2+ Ke2 Bd5 Qc4 Bf7 Nd5 Bfg8 Qcc3 Qe4 Nh3 h1Q Ra3 Qeh4 Qc5+ Ka8 a7 Qh2 Ra6 Kb7 Qc4 Qd4b6 a8N Qa7 Nac7 Qcd2+ Kf1 Qdc1 Ne6 Ka8 Rc3 Qcd2 Bc2 Qdd4 Ke2 f1B+ Ke1 Bg2 Ke2 Qdc5 Qb5 Qcd4 Rc7 Qdc3 Qc6+
2BK4/1b1b2b1/k4r1P/1rQR1n2/4r2b/NNr1b2n/n1BB3Q/rRqn2B1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 h4 e5 c4 d5 a4 Kd7 f4 Kc6 a5 b5 h5 Kb7 h6 g3 f5 e3+ Kd3 e4+ Kc2 b3+ Kb2 d3 Kc3 e2 Kd4 e1B Ke5 g4 f6 d4 c5 b2 f7 g2 c6+ Ka6 c7 b4 Qf3 e3 Ra2 b3 Qf6+ Nc6+ Kf4 e2 Kg5 g3 Qe7 d2 Rh4 d1N Ra1 d3 Nf3 g1N Be3 g2 Ne5 d2 Bb6 Nb4 Ra4 Bg7 f8B Bb7 c8B Nh3+ Kf5 g1B Ke6 Be3 Nc4 Na2 Rh5 Bh4 Rb4 e1R Bd3 Qc7 Nba3 b1R Bc2 b2 Qc5 Ne7 Rd5 Rc1 Ba7 Qf4 Kd7 b1R Kd8 Rb8 Rb2 Ra1 Rb1 Rh7 Bb6 Nf5+ Be7 Qf1 Bg5 Qg1 Bd3 Rc3 Bc2 Nb2 Ba7 d1B Nd2 Bg4 Nb3 Re2 Bb6 Qc1 Ba7 Nd1 Bb6 Bef2 Ba7 Re7 Bd2 Re4+ Kc7 Bgd4+ Rd7 Ne7 Kd8 Rf7 Qb4 Bg7 Bae3 Rf6 Rd4 Ka7 a6 Ba8 Rd5+ Rbb6 Qa5 Bb7 Qc5 Bd7 Bd4 Nf5 B4e3 Be1 Bg1 Bhf2 Qd6 Rbb4 Qh2 Kb6 a7 Be3 a8Q Bh4 Qa4 Rb5 Qd4+ Ka6 Qc5
2rRbnb1/Nk2bNq1/n1r2Rn1/K1Q1n1B1/Q3b3/2nn4/3PB3/1QQ2q1r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 g4 Kc6 a4 b5 a5 f5 a6 h5 g5 h3 g6 h4 g7 c3 a7 h2 e5 h3 e6 f3 e7 f4 e8Q+ Nd7 Ra5 b3 Ne2 b2 Qe7 c2 Qa3 b4 Nbc3 b1N Qb3 Rh6 Re5 Na3 Nb1 Qf6 Rg5 Nb5 Qa4 b3 Ng1 b2 Bg2 Ne7 g8Q Qg7 Rg4 Kb7 Qga2 c5 Rg3 c4 Nc3 b1N Nd5 f2+ Ke2 f1B+ Ke1 f3 Q2a3 c3 Nb4 Ng6 Bb2 c1N Nc6 c2 Bf6 Bc4 Bg5 Be7 Bf1 Bg8 Be2 N1c3 Qc5 Ndf8 Qb3 Rb8 Qb1 Bd7 Rg4 Rd8 Rf4 Be8 Rf6 f2+ Kf1 Ra8 Nf3 Rc8 Nfe5 Nd3 Nf7 c1N Qe1 Nde5 a8Q+ Kc7 Qaa3 Kb7 Qa4 Ncd3 Qbc1 Nc7 Na7 Na6 Rg1 h1B Rg3 Ndf4 Rd3 h2 Rd8 Be4 Qb1+ Nb4 Qec1 Nfd3 Bg4 Nd1 Ke2 Nc3+ Ke3 h1R Kd4 f1Q Be2 Ng4 Kc4 N4e5+ Kb3 Nh8 Rf3 Rhc6 Rf6 Nhg6 Qaa1 Nb5 Ka4 Na6 Qad4 Ngf4 Ka5 N4g6 Qbc2 Nc3 Qda4 Qg1 Qca2 Qf1 Qab1+
1Q1K1N2/r1n1n2b/NNBRq2q/1Qnn1b1r/2P3Nq/n2R4/n6B/q3k1b1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 Kg3 e4 Kf2 g4 h5 a4 b5 a5 f5 a6 b3 g5 f3 e5 f4 g6 h3 e6 h2 e7 h4 Kd6 d3 a7 b2 g7 h3 Ne2 b4 Nec3 b3 Nd5 d2 Ra6 Rh5 Nb6 Qe8 Kc7 d5 Ra2 d4 Be2 d3 Ra5 Bf5 Re1 h1Q Na4 h2 Bf1 Nd7 Rb5 Nc5 Nbc3 b1N Re5 b2 Rb8 Na3 Qb3 b1B Nd5 d1N Qb4 d2 Bh3 Nc3 Bf1 d1N Be3+ Ke1 Bg2 f2 Qb5 f1Q Nb4 f3 Bg1+ Ne3 Rd8 f2 Nb6 Na2 Bc6 Qg6 e8Q Ne7 g8N Qe6 Rd6 Qe4 Qc8 h1Q Qb8 N3d5+ Kd8 Nc7 Red5 Qeh4 Bh2 Bh7 Qa6 Bbf5 Nd7 Qfh3 Qa5 f1N Qb5 Ne3 Rd3 N3d5 Na6 Bg7 Nh6 Bd4 Ng4 Bg1 Nf8 Qhe3 Qb2 Q3h6 Qb7 Qf3 Qb2 Qd1 Qb5 Qa1 Qc8 Rb8 a8N Rb7 Qb8 Ra7 Nb6
N1K2B2/1RQ1bB1r/5bq1/1n4r1/4n1nb/1bBB1r2/Q2RP2q/bNrn3k b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kf6 a4 Ke5 h5 b5 h6 c5 h7 g5 d3 f5 a5 b3 a6 b4 a7 b2 Qb3 f3 Ke3 c3 Bh3 f4+ Kf2 c2 Bg2 g3+ Kf1 g4 Qa2 f2 Rh4 c4 Qb3 c3 Bc6 Qc7 Kg2 f1N Rh1 Nf6 Nh3 f3+ Kg1 f2+ Kg2 Be6 Bb5 Nd2 Ra6 f1R Rg1 Rf3 Rd1 Nc6 Ng5 Kf4 Ra2 Nd4 Qd5 b3 Na3 b1N Re1 b2 Kh1 g2+ Kh2 g1B+ Kg2 g3 Qb3 Bf7 Kh3 Bf2 Ne6+ Ke3 Kh4 g2+ Kg5 Qh2 Nc7 g1B Ba6 Rb8 a8B Rb5+ Bd5 Ng4 Na8 Bg8 Qc4 Bh4+ Kg6 Kf2 Qc7 Nf1 Bh6 Bfe7 Bf8 Nbd2 Rb1 Kg2 Be6 c1B Bb3 Nc2 d4 Kh1 d5 Nd4 d6 c2 d7 Nfe3 d8Q Nd1 Qd5 Bhf6 Qdc4 Bf2 Qa4 Bc4 Qaa5 Rd5 Kf7 Rg5+ Ke8 Bh4 Kd7 Bg8 Kc8 Bd5 Rba1 b1Q Rb2 Bg8 Raa2 Bf7 Bbc4 Bg8 Rb7 Bb2 Qd5 c1R Bb3 Qc2 Nb1 Qg6 Bd3 Ba1 Qdc4 Ne4 Rd2 Nb5 Qc2 Bf7 Qa2 Rg8 Bd5 Rg7 Be6 Bfc3 h8B Rh7 Bd7 Bg8 Be8 Bb3 Bf7 Bcb2 Bd4 Bc3 Bg1 Be5 Bd4 B5f6 Bc3
1rB2qn1/R2k4/3N4/6Nq/2r1bN1q/2bbK1Nq/r1Q1P1bB/1Rn1b1Qr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Rh4 a4 b5 c4 d5 a5 g5 a6 f5 h3 d3 a7 d2 c5 f3 c6 b3 c7 f4 Ra3 b4 Ra2 d4 Bg2 d3 Bf1 b2 Qe1 d1B Ra5 d2 Bg2 g3+ Kf1 f2 Nc3 b1R Na2 b3 Rd5 b2 Rb5 g4 Bd5 Bg7 Ra5 Nc6 Ra4 Nd4 Nb4 Bb7 c8Q Nb3 Ra5 Bc2 Na2 d1Q Bd2 Bd3 Qc4 Kd7 Nf3 Ra1 Qc3 Rb8 a8N b1R Ra3 Qf8 Ra7 Bh8 Kg2 f1B+ Kg1 g2 Kf2 Rb2 Ng5 f3 Bf4 g3+ Ke3 f2 Qc2 g1Q Nc3 g2 Nce4 Bc3 Nc7 Rba2 Ne8 Qh2 N8d6 g1B Be5 Rg4 h4 Bh3 h5 f1Q+ Qf2 Qde1 h6 Qfg2 h7 Rf4 Nd2 Rc4 h8N Qgg3+ Bf3 Bg2 N2e4 Qh5 Ng6 Qgh3 Bf4 Bh2 Rg1 Bg3 Be5 Bh4 Bh2 Rd1 Qf1 Qeg3 Nf4 Qgg4 Rh1 Bg3 Qf2 Qgh4 Rf1 Rd2 Rc1 Rd1 Rb1 Rh1 Qg1 Bge1 Ng3 Nc1 Bg4+ Kd8 Bc8 Bbe4 Bb7 Kd7 Bc8+
n1B2R2/Qb1qb3/3k2bq/R6b/3KnQ1q/R1nPrNnN/4rn2/2q1B2R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 g4 f5 e4 h5 a4 b5 g5 c5 a5 b3 a6 f3 Ke3 b4 a7 c3 g6 f2 e5 h3 e6 h4 g7 f4+ Ke4 f3 Bc4 f1N Rh2 c2 Nc3 f2 Be2 b2 Rb1 b3 Ba6 c4 Qf3 Qd7 Qf6+ Kd6 Nge2 Bb7+ Kd4 Be7 Rh1 h2 Ng3 h3 Qf8 Nf6 g8Q Ne4 Rg1 h1Q Nd1 c3 Qgg7 h2 Kd3 Rh3 Ra1 b1B Ra4 b2 Bc4 Na6 Ra5 Nc7 Kd4 Re8 Ne2 Nfg3 a8R f1B Nf2 Bg2 Qf5 Bf3 Ba6 Bh5 Rd1 Qe1 Ng1 h1N Nf3 Rh2 Nh3 Re2 Qfg5 Nhf2 Ra7 Na8 d3 Ba2 Qh4 b1N Bd2 c1Q Qhg5 Qh1 Be1 c2 Q5f6 Qh6 Qh7 Bc6 Bc8 c1Q Ra3 Bb7 R7a5 Nbc3 Qff7 Bh4 e7 Bc4 Qff5 Bcf7 Qg5 Bfg6 Qf7 Rh8 e8R Qh2 Rd8 Re8 Qgf4+ Re5 Rf8 Be7 Bd2 Re3 Rh1 Re2 Be1 Re3 Nhg5 Qh4 Nh3 Re2 Q7f5 Nd2 Q4g4 R5e3 Qgf4+ Kc6+ Rd5 Nde4 Qb8 Qc7 Rda5 Kd6 Qa7 Qd7 Qf4+
2k3N1/1qbqqR1n/2q1R2K/4qqnn/Pq2bB1B/2BQ4/2r5/NqQB3r b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 e5 a4 d5 c4 Kd7 f4 g5 h4 b5 c5 b3 h5 e3+ Kd3 e4+ Ke2 d3+ Ke1 d4 h6 e2 Kf2 e1Q+ Kg2 g3 Kh3 b4 Kg4 d2 Kh5 b2 f5 b3 h7 g2 f6 g4 f7 e3 Nc3 b1Q Ra3 b2 Nh3 g1Q Be2 g3 Ng5 d3 Nh3 g2 Bf3 e2 Ng5 Qgf2 Rb3 g1N Nce4 Nf6+ Kg6 Bd6 f8B Nh5 Rb6 Qe7 Bg2 Nh3 Bh6 Bc7 Bg7 Bb7 c6+ Kc8 Nc5 Qf5+ Kh6 Nd7 Bc3 Nf8 Nf7 Ng5 Bf3 Qee5 Qb3 d1Q Bf4 d2 Rf1 Qdc2 Qd5 d1Q Qd3 Qh4 Nb3 e1Q Na1 Qe7 Bf6 Q1e5 Ra6 Qdd2 Bd1 Qhg4 Rb6 Qdb4 Rf2 Ra5 Ra6 Rc5 Rb6 Bb8 c7 Be4 Re6 Qcc4 Rf3 Qcb5 Rf1 Qc6 Rf2 Rc2 Rf3 Rg8 h8B Nfh7 Bhg7 Rh8 Rf1 Nf3 Bh4 Nfg5 Bf6 Qeb5 Bc3 Qbe5 Rg6 Qfd7 Re6 Qgf5 Rf3 Qc1 Rf2 b1Q Rf1 Qcb2 Rf2 Kb7 c8Q+ Ka7 Qd8 Kb7 Bc1 N5f6 Qe3 Q4b3 Bg3 Qff4 Kg7 Bc7 Be1 Qc8 Qd6 Q8d7 Qdd3 Nf8 Bc3 Rh1 Bh4 N8h7 B1d2 Qg4 Rf5 Nh5+ Kg6 Qcc5 Nh6 Kc8 Ng8 Qb7 Kh6 Qcc6 Rf7 Qgf5 Bc1 Q2b4 Qed2 Ra2 Q2c2 Rb2 Bf4 Ra2 Qcd2 Rc2 Qc1
1qN1b2n/r5BK/1q2BR2/6rn/Q1n2Qr1/p4N1r/1kP3q1/b1QrR1Qb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 e4 d5+ Ke5 f5 g4 h5 g5 a5 b3 h3 g6 h4 g7 f3 Bg2 f4 Qe2 a3 Qf2 h2 Bh3 a4 Qe3 a2 Be6 h3 Kf5 d3 Kg6 d2 e5 d1N Bb2 a3 Bd7 f2 e6 f1R e7 f3 e8Q d4 Bb5 d3 Q3e5 f2 Bc6 d2 Q8e6 Nh6 g8Q Nd7 Qe2 Qb6 Qe8 Ne3 Bf6 d1R Bb2 Nf7 Qf3 Nc4 Qe6 Ra7 Qf4 Bg7 Nf3 Rh5 Qeg4 Rg5+ Kh7 Nh8 Qc1 Rg1 Nbd2 f1Q Bd5 Qg2 Ne4 Bb7 Qh4 Bc6 Nd6 Be5 Rb1 a1Q Be6 Ba4 Bd4 Qb2 Nc8 Bg7 Bf6 Qe5 Qhf4 Kc3 b4 Rg4 b5 Rg5 Be7 Qeb8 Bf8 Bd4 Bg7 Nf6+ Kh6 Nh5 Kh7 Qf2 Rb4 R1g4 Re1 h1B Qe8 h2 Qg6 Q6c7 b6 Be8 b7 Qg2 Rb6 Be5 Ra6 Qb6 Qge4 Bd4 Qc6 Be5 Qa4 Bf6 Qg3 Be5 Qf2 Bf6 Qg1 Be5 Qf4 Kb2 Qc1+ Ka2 Nd2 Qb1 Re2 Qd6 b8Q Ba1 Qb7 Qb8 Qf7 Q1b3 Nf3 Qe3 Ra5 Qeb6 Qce3 Kb1 Re5 Kb2 Qd2 Qgf2 R2e3 Bg2 Re1 h1R Qff4 Rh3 Qde3 Bh1 Rf5+ Rd4 Rf7 Qg2 Rf6 Rd1 Qc1+
1n2nbNN/2r1qq2/nB1k3n/3B2R1/1q1PbrR1/1r1nbB1p/3BK3/3Q2Q1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 b5 a4 c5 d4 e5 f5 h5 g5 e3 a5 e2 a6 e4 g6 h3 a7 c3 g7 c2 f6 c4 f7 h2 Na3 h4 Nf3 b3 Qd3 h3 Rb1 b4 Nh4 c3 Qe3 b2 Kf2 e1N Be2 b3 Qg5 e3+ Kf1 Qf6+ Qf5+ Kd6 Nf3 Rh4 Qb5 Nd3 Qg5 Rf4 Qg2 Bb7 Qg4 Nh6 g8Q Nb4 Ra1 b1Q Bc4 b2 Bd5 N4a6 Rg1 h1N Ke2 Nf2 Bd2 c1B Nc2 Ne4 Nb4 c2 Ne5 Qe6 Q8g5 Nf6 Ng6 Ne8 Nc6 Qe7 Q5h5 Qa2 Nh8 b1R Qg7 Qb3 Rg4 Qb4 Qg8 Rb3 Ra5 Qe6 Ne7 Qg6 Bh1 Be4 Rag5 Qh7 Bf3 Qg7 Kf1 e2+ Kf2 e1N Ke2 Qf6 Qg7 Nd3 Ng8 Qe7 Rb5 Nd7 Rbg5 Rc8 a8B Ndb8 Bd5 Rc7 Bc3 Be3 Bd2 c1Q Qgg6+ Qe6 Qg7 Be7 f8B Qcc5 Qgg6 Kd7 Qg7 Qf7 Qgg6 Bd6 Be7 Qa7 Bd8 Bf8 Qg7 Rc6 Bb6 Kd6 Qh4 Qac7 Qe1 Qce7 Qg1 Rc7 Qh7 Nf5 Qh4 Nh6 Qhe1 Rcc3 Qb1 Rc7 Qbd1
1r1Q1N2/1r2Q1r1/1bK1QQb1/1RP1N1nq/1BbR1q1n/1b2k1p1/2q1n3/1b1B4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 a7 Kd4 h6 d2 e5 f3 e6 f4 e7 b3 e8Q b4 h7 b2 Qd7 b3 Be2 g3+ Kf1 f2 Kg2 f1B+ Kf3 g2 Qe7 g4+ Kf2 g3+ Kf3 Bf5 Nh3 Nf6 Nf2 Qe8 Bd3 Bg6 Rh2 Nc6 Be4 Rb8 a8Q Rg8 h8Q Rg7 Ra2 Nh7 Qa6 g1N+ Kg4 f3 Kf4 Ne2+ Kg4 Ke3 Rh5 d4 Nh3 d3 Na3 b1B Nf4 b2 Ne6 f2 Bf3 Ncd4 Rb5 Ng5 c5 Nf5 Qe1 Nh4 Qf6 Bd6 Nf8 Bc7 Qae6+ Be4 Qee7 Bb6 Qg8 Qf7 Qd8 Qc4 Qge6 Qc2 Ra1 Ba2 Qee7 b1B Bb2 d1R Bc3 d2 Bb4 Rc1 Qee6 d1Q Qee7 Qd5 Nc4+ Kd3 Ne5+ Ke3 Qee6 Bb3 Ra7 Bg6 Rd7 Rd1 Qee7 Qf7 Rd4 Rb7 Qc3+ Rd3 Qc4 Rd2 Qce6 Rb8 Rf4 Rd7 Rc4 Rdb7 Rd4 Ng1 Bd1 Bfc4 Be2 f1Q Bf3 Kf2 Kf4 Qh3 Bd1 Qh1 Nf3 Ne2+ Ke5 Ke3 Kd6+ Kf2 Qfe5 Qf4 Kc6 Qh2 Q5f5 Qh3 Ne5 Ke3 Qff6 Qhg4 Q7d7 Qh5 Q7e7
b1Rb2B1/B2N2rQ/3rp1nb/k1N3nK/7P/2rB2qQ/qB4qR/5bnb b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 f4 b5 c4 d5 a4 Kd7 h4 Kc7 f5 Kb6 c5+ Ka5 c6 d3+ Ke3 g3 f6 d2 f7 g4 Kf4 b3 Kg5 b4 c7 b2 Be2 e6+ Kg6 g2 Rh2 g3 Bc4 b3 Qf3 d1R Qf4 d4 Nd2 b1Q Bf1 d3 Ndf3 d2 Rh3 b2 Rh1 e3+ Bd3 e2 Qg4 e1Q Bf5 Nh6 Rh3 Ba6 c8B Qa2 Qc4 b1B Kh5 Rh7 Rh2 Qd5 Nh3 g1B Qe4 g2 Nhg5 Rg7 Bh7 Bf1 Ba6 Qg3 Bb2 Bb6 Bg8 g1N Bd3 Bd8 Ne5 Nc6 Qh7 Ne7 Ne4 Ng6 Nc5 Qdg2 Ned7 Bc2 Rb1 Rc8 Rc1 Bb3 Rc2 Bd5 Rc1 Ba8 Rc4 Bd6 f8B Bf4 Bd6 Nf7 Bb8 Bfg5 Ba7 Bh6 Rc2 Ng5 Rc1 Kb4 a5 Rc7 a6 Ka5 Rc4 Rc6 Rb4 Rc1 Rb8 Rc3 Rc8 Rb6 Bb8 Rc6 a7 d1B+ Be2 Bb7 a8Q+ Ra6 Ba7 Rd6 Qb8 Ba8 Qb3 Bc2 Ba6 Bce4 Bc4 Qc2 Bd3 Bh1 Qc4 Qe2+ Qg4 Qeg2 Qh3
1bQ2n1B/7p/2brNq2/3b2Bn/1kb3K1/2b1RrR1/NBBPq2q/2n1r1Q1 b - - 0 1 illegal: No possible last move
KQ1b1b2/b2b4/rb2R1N1/n6k/bnQ1rp2/1R2N1q1/1rqPN3/4BBNb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 e4 b5 h4 c5 a4 f5 e5 Kf7 e6+ Kg6 a5 f3 Ke3 f4+ Ke4 f2 a6 b3 a7 b2 e7 c3 e8N c4 Ra2 b4 Nc7 g3 Nh3 b3 Ra3 c2 Ng1 c3 Bb5 f1B Ra6+ Nf6+ Ke5 g2 Re6 g4 Qe2 g3 Ne8 Qd3 Qd1 Bd7 Re7 Nd5 Kd6 Nc6 Kc5 Na5 Ba6 Nb4 Qe1 Kh5 Kb6 Qe3+ Kc7 Bfb5 Rh3 Ba4 Bf1 Rh7 Re6 Re7 Nd6 Qf3 Rf6 Re4 Re6 Be7 Nf5 Bd8+ Kd6 Qe3 Qe2+ Qf3 Qc4 Qg4 Nf3 g1B Ne3 g2 Kc5 Bf2 Ng1 Qg3 Kd6 Rb8 a8Q Rb6+ Kc5 Rd6 Qb8 Ra6 Na3 b1R Nb5 b2 Nd4 Ra1 Nde2 b1B Ba3 c1B Bb2 c2 Bf6 Ba3 Bd4 c1Q Bf6 Kh6 h5 Qc2 Bd4+ Kg5 h6 Ra2 h7 Rb2 h8N Ba2 Ng6 B2b3 Nh4 Kh5 Bf6 Bac6 Kd6 Bba4 Ng6+ Qh4 Rf3 Qg4 Bh4 Qg3 Nd1 Bfb6 Rb3 Qg4 Be1 Qg3 Nh3 g1B Ne3 Bf2 Nhg1 Re5 Nc3 Bh1 Nce2 Re4 Qd5+ Bg5 Qc4 Ba7+ Kc7 Be7 Qg8 Bb6+ Kb8 Bed8 Ng4 Ba7+ Ka8 Bfb6 Ne3 Nbc6 Nh8 Bf8 Ng6 Nb4 Qh8+ Kg5 Qe5+ Kh6 Qec7 Kh5 Qb8
r2r4/B1Rqq3/r4br1/1bQNrN1k/1P1K2Br/Rb2np2/1Q1N4/1r2N2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 a5 e4 f5 g4 Kf7 b4 Kg6 e5 h3 c5 h2 e6 a3 e7 h4 e8N f3 g5 a4 c6 f4 c7 h3 Bg2 a2 Nf6 a3 Qf1 f2 Nh5 f3 Qe1 f1R Ng7 Nh6 Nh5 Qe7 Ne2 Ng4 Rg1 h1R Qh4 h2 Qf2 Ba6+ Kc2 d3+ Kc3 d4+ Kb3 d2 c8Q d1Q+ Qc2+ d3 Kc3 Bg7+ Nf6 Ne3 Nd4 Re1 Bf1 Bb5 Ne8 Nc6 Qce2 d2 Rg3 Ne5 Nf6 Nd3 Nc2 Rg1 Bh3 h1R Kd4 Rg2 Qg1 Nf2 Rg4 Rhh2 Rh4 Rhe8 Rh7 Nh1 Qef2 Re2 Ne1 Qa4 Bb2 d1B Nd2 Bb3 Bc3 Bf8 Rf7 Red8+ Nd5 Kh5 g6 Bh6 g7 Rg6 g8N Bg5 Nh6 Bh4 Rb1 a1R Nf5 a2 Rb2 Rd1 Qfg2 a1R Ra2 Rdb1 Ra3 Qd6 Rc7 Bf6+ Ke4 Qa7 Bd4 Qb7 Ba7 Qd7 Qg3 Qe7+ Qe5 Qc8 Qg2 Qcd7 Kd4 Bd1 Rac3 Ra6 Ra3 Bb3 Qf1 Reg2 Qc4 R2g3 Qc3 Re2 Qb2 R3g4+ Kc3 Re4 Qd4 Re5 Qc5 Reg2 Kd4 R2g4+ Kc3 Rc4+ Kd3 Rh4+ Kc3 Ng4 Kd4 Ne3+ Bg4+
b1r1r1bR/k2n1qNQ/3bPbB1/N7/K6b/2bNR1r1/1bp2B1N/3qQ2n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 d4 Kd7 Kd2 Kc6 Kc3 Kb6 h4 f5 e4 g5 b4 c5 d5 a5 h5 f3 e5 f4 b5 f2 d6 g3 h6 a3 d7 a4 h7 g4 Bd3 f1Q Bd2 f3 Bc1 g2 Be3 g3 Qb3 a2 Ne2 g1R Qc2 f2 Qb2 a3 Be4 g2 Nf4 Ka7 Nd3 Bb7 Bf3 Ne7 Bh5 Nf5 Bg6 Bd6 Qc1 Re8 h8N Ng3 Rh3 Nh1 Kc2 c3 Kb3 c2 Qe1 c1B Ka4 Bb2 Rf3 Qe7 d8N Qf7 Nd2 Nd7 Rh3 Rc8 Nb3 Ba8 Na5 Bc3 Rd1 a1B Ne6 a2 Ng7 Bab2 e6 a1B Rh7 Qe2 Rh4 f1B Bf2 Qef3 Rc1 Qd1+ Rc2 Be2 Rh3 Bh5 Re3 c4 b6+ Ka6 b7 Ka7 Nf4 Bf6 Nd3 c3 b8Q+ Ka6 Qb3 Ka7 Rd2 c2 Qb4 Bbc3 Qh4 Bab2 Qh3 Be2 Qh7 Bh5 Be4 Bh4 Ng6 Bhf6 Nge5 Bg6 Qh4 Bh7 Ng4 Bg8 Qh6 Rf1 Rde2 g1B Bg6 Bgh2 Qh3 Bhg3 Nh2 Rg1 Qh7 Bgh4 Rh3+ Rc5 Ree3 Rcc8 Qh5 Rg3 Qf5 Bhg5 Rh8 Bh4 Qh5 Rh3 Qh6 Rg3 Qh7
2r2R2/b4b2/2p1R3/1r2b2b/3q2PQ/nnRqRqbk/1KBbb2N/BQ1N4 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc2+ e3 a4 h5 a5 e5 f3 b5 d5 e4 d6 c6 d7 h3 f4+ Kh4 f5 b3+ Kc3 h2 f6 b4+ Kb2 e2 f7 e1B a6 e3 a7 e2 Qc2 Bg3 Ra3 e1B Qf2 c3+ Ka1 b2+ Ka2 c2 Rc3 Na6 Qf5 Nf6 Bh3 Bg7 f8Q b3+ Ka3 Rb8 a8R Nb4 Ne2 Bd2 Qb5 Ba6 Qf7 Ne4 Rf3 Nc5 Qfc4 B7e5 Rg1 h1B Rf4 Bd5 Qd3 Bf7 Nbc3 b1B Qf3 b2 Re4 Nb3 Nd1 Rb6 Qbd3 Rb5 Bg2 Rf8 Bh1 Kh3 Nd4 h4 Rge1 Be3 Bd2 c1B Bc3 Bcd2 Qf2 Re8 Nf3 Ba7 R1e3 Nc2+ Ka4 Na3 Nh2 Ba2 Qb1 Bh5 Rb8 Qb6 d8R Qc5 Rc4 Qd4 Be4 Rg8 Rd6 Rc8 Qc2 b1Q Re6 Bd6 Ba1 Be5 Qb2 Qc2 Qf6 Qcd3 Bf5 Kg2 Qb1 h3 Nf1 h2 Qh4 h1Q Nh2 Q3c3 Bc2 Qcd3 Rb7 Qhf1 Rf7 Qf3 Rf8 Na5 Rb4 Bd5 Rc4 Nb3 Re7 Bdf7 Re6 Qd6 Rc3 Qd8 Qf6 Kh3 Qh6 Qdf6 Qg5 Qg7 Qh4+ Kg2 Qe7 Rd5 Kb4 Qg5 Nf1 Qde2 Nh2 Kh3 Qd8 Bc4 Qf6 Qgf4 Qd8 Qd4 Ka4 Nc1 Qe7 Rb5 Red3 Qee4 Re3 Be2+ Qbb4 Nc4 Qb1 Nb3 Qg5 Qed3 Qe7 Nca5+ Ka3 Nc4+ Ka2 Na3 Kb2 Bge1 Qd8 B1g3 Qh4+
1R2Qq1k/B3NbB1/p1R3b1/q3r1bn/2b1Nr2/P1B2Q1K/4rb1b/2B1bn2 b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 g5 d6 Bd3 dxe5 Bf5 e4 Bg4 hxg4 Kf2 e5 Kg2 f5 d4 Kf7 b4 Kg7 h4 c5 d5 e3 g6 g3 d6 e2 a3 e1Q d7 e4 h5 a6 b5 c3 b6 e3 b7 c2 Rh2 e2 Rh3 c4 Qd4+ Nf6 Qb2 f3+ Kh1 g2+ Kh2 f4 Qc3 f2 Bb2 f1B Qg3 c1B Qc3 f3 Qd2 c3 Qd3 c2 Qd6 f2 Qc7 Bc5 Qg3 Nc6 b8B Ne5 Rh4 Rf8 Qf3 Kh8 Nd2 Neg4+ Kh3 Nh2 Rc4 Qe8 Ne4 Qa5 Nd6 e1B Ba7 Bd4 Ne2 Bg5 Rb1 c1R Ng3 Rc2 Bc1 Bd3 Ndf5 f1B Rc6 Bdf2 Rb3 Rb8 Ne7 Rb5 Rb2 Re5 g7+ Kh7 Rb8 g1B+ Qg2 Bfe2 Qf3 Nf1 g8Q+ Kh6 Ng6 Bh2 Ne7 Bg6 Ne4 Bc4 Qf7 Rh8 Qg8 Re2 Qf7 Qf8 Qe8 Kh7 h6 Bgh4 Nf5 Bcf7 d8B Bce6 Bdb6 Bc4 Bbe3 Nh5 Bed2 Rg8 Ne7 Bf5+ Qg4 Rg5 Bc3 B5g6 Qf3 Rg4 B3d2 Kh8 h7 Bg5 Bc3 Kg7 h8B+ Kh7 Bg7 Rf4 Bh6 Kh8 Bg7+
3N1Nqb/b2b2n1/pQ1BQ2b/Q1P5/1Kn1rRQk/1Brb2q1/2Rn4/4b1b1 b - - 0 1 illegal: No possible last move
3r1r2/4nQb1/3qP2Q/BBRbbpr1/1r1Nn2R/2b3b1/Br6/1kBnN2K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kf6 d4 Kf5 h4 Ke4 a4 b5 h5 g5 e3 f5 h6 c5 h7 f3+ Kh2 c3 a5 c4 d5 g3+ Kh3 b3 a6 g2 Kh2 b4 d6 b2 a7 c2 d7 g4 Ra3 c3 Qe1 g3+ Kh3 f2 Ra5 b3 Rh2 Na6 Rb5 Ne7 Rb6 Bb7 Bd2 c1B Ne2 Kd3 e4 Kc2 e5 g1B e6 g2 Rb4 Bg7 Rg4 Nc5 Rf4 Bd5 Rh1 Rf8 h8Q Ne4 Rh4 Bh2 Qh5 g1R Bg2 f1N Qf7 Ne3 Bf1 Rg5 Qf2 Bf4 Qh2 Bfe5 Rg1 Qb8 d8B Nd1 Ba5 Qd6 Qf4 Rab8 Kh2 Rbd8 Be3 Bd2 a8B Be1 Nd2 b1R Kh1 Rb2 Nf3 Bg3 Ne1+ Kb1 Nd4 c2 Bb5 c1B Bac6 Bd2 Bc4 Qc7 B6b5 Bc3 Bc1 Qd6 Qd2 Ra2 Qh2 b2 Rg2 Ra4 Rc2 Rb4 Qh3 Ka1 Qh2 b1R Ba2 R1b2 Qd2 Rg4 Qh6 Rg5 Bac4 Kb1 Bb3 Bd2 Rc5 Bc3 Ba2+
3Rbb1B/Nrnr3r/r1qP2rk/p1BN2bb/1n4BR/4QKn1/8/2B1b2Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 g5 h4 a5 d4 c5 e4 f5 b4 Kf7 d5 Kg6 e5 f3 b5 g3+ Ke3 f4+ Ke4 g4 b6 g2 b7 g3 e6 a3 e7 f2 e8Q+ Kh6 h5 a2 d6 c3 Bb5 f1B Qe2 c2 Qf2 c4 Qe3 c3 Qd3 Ne7 Qd2 Nbc6 b8B Qc7 Rh3 Nd5 Nf3 g1B Nh4 g2 Kf3 Be2+ Ke4 Ncb4 Qe7 Qc6 Na3 Bd7 Qd1 Be8 Bc4 Rh7 Qe1 Bf2 Rh2 g1R Ba7 Rg6 Rb1 a1R Bc5 Ra6 Qh1 Be1 Nb5 Nc7+ Bd5 Ra3 Na7 Rb3 Ng2 Bg4 Ne3 f3 Kf4 f2 Rh4 f1N Bf3 Ng3 Nd5 Rb2 Qe3 Rd7 Bd2 c1R Bd1 Rcc2 Bc1 Rh2 Bf3 c2 Be2 Kh7 h6 Bh5 Bg4 Rb3 Kf3 Rh3 Ba3 c1B Bb2 Bcd2 Bc1 Rb2 Qe4 Bg5 Qe3 Kg8 h7+ Kg7 h8B+ Kh6 Qb3 Re2 Qc3 Ree7 Qe3 Rh2 Rb3 Rb2 Rc3 Rh7 Rb3 Na2 Rb8 Rb7 Rc8 Nb4 Rd8
4Rb1K/n2rb1BN/B3rb2/1bNR1BPq/1b1n3k/2b2q2/2B1p1q1/Q4rQ1 b - - 0 1 illegal: No proof kernel
5q2/4k1Bn/1p1qrrB1/3b3N/2nQ1r1q/R1r4R/1B2QB1P/K2Nrnbr b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 a4 e5 d4 g5 Kd2 c5 Kc2 g3 Kb2 e3 f4 g4 a5 e2 f5 e1R d5 e4 f6 c3+ Ka2 b3+ Ka3 b6 f7+ Ke7 a6 g2 a7 e3 Bd3 g3 Qd2 b2 Ka2 c2 Nc3 b1N Nf3 g1Q Ne2 c4 Ned4 g2 Ne6 e2 Ned4 c3 Nb3 Rh4 Be4 Nf6 Ba3+ Qc5 Rg1 c1R Na5 c2 Qd4 Be6 Nd2 Qcd6 Nac4 Nbd7 Nb2 Ne5 Nf1 Nc4 Bg6 Nh7 Ng3 Nbd2 Nh5 Rf4 Nd1 Nf1 Bb2 Rc8 a8Q Rc6 Qa3 Bg7 Qb3 Qf8 Qf3 Rb1 Qfd3 c1R Q3e3 Rc3 Qee5 Ng3 Rf1 g1Q Rf3 Nf1 Rh3 Qf2 Qee4 Qdd8 Qee3 Qh4 d6+ Kd7 Qed3 Bd5 Qc2 Ke6 d7 Ke7 Qcd3 Rcf6 Qd2 Qb8 d8B+ Kd6 Bc7+ Ke7 Be5 Qd6 Q2e3 Re4 Bg3 Bh6 Qed2 Be3 Bf2 Ref4 Q2d3 Ng3 Qd2 Rh1 Qc2 e1R Qcd3 Rbc1 Qe2 R1c2 Kb1 Nf1 Ra3 Re6 Ka1 Rff6 Bg3 Bg1 Bf2 Rcf3 Qc3 R3f4 Qcd3 Qfb8 Qd4 Rc3 f8B+ Kd7 Bh6 Ke7 Bg7 Qa8 Bg3 Qf8 Bf2
1BQ3bB/5BNP/3qR2b/pb2b1r1/kb1qN3/qrBQ1r2/4Kn2/n4R1b b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 b4 d5 h4 Kd7 c4 Kc6 f4 g5 f5 a5 c5 e5 h5 e3 h6 e4 f6 d3 f7 Kb5 h7 g3 c6 e2 c7 a3 Bh3 a2 Be6 d4 Rh4 g2 Rh5 d2+ Kf2 e1B+ Ke2 e3 Qb3 d1B+ Kd3 e2 Bb2 Nh6 Qd5+ Ka4 b5 g4 b6 g3 b7 Bd7 c8Q Bc3 Nh3 g1Q Qf5 e1B Qf6 g2 Rg5 Bf3 Ba3 Na6 b8B Ng4 Qc7 Bh6 f8B Nc5+ Kc4 d3 Bd5 d2 Bb7 d1B Bb2 Nb3 Kd3 Be5 Bd5 Bb4 Qc8 Nf2+ Ke3 Bb5 Nf4 Qd6 Bg7 Rf8 Bh8 Bde2 Qff5 Bec4 Bf7 Ra7 Bc3 Rb7 Bg6 Bg8 Nd2 Bfd5 Rc1 a1Q Ne6 Qa3 Ne4 Na1 Bf7 Qd1 Qf3 g1R Ng7 Bdc6 Qg3 Q1d4+ Kf3 Bd5 Rg6 Rb6 Qgh3 Rg5 Qf1 Bb7 Qd3 Bd5 Ke2 Rb7 Ng3 Bh1 Rf1 Rb6 Re6 Rb7 Bh5 Rf3 Ne4 Rc7 Be1 Rc3 Bf7 Rb3 Bc3
1b4k1/PN2r2Q/1B1B2n1/Q1bNb1K1/2Rb1BR1/q1q2rqb/pn2B3/1r4b1 b - - 0 1 illegal: No proof kernel
Q2N2bq/PrQ1N1bk/nR3Br1/1Kn3p1/rR5r/8/rR5n/1rbqRB2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 b5 Kd3 g5 a4 f5 h4 Kf7 e4 Kg7 c4 d5 h5 f3 c5 f4 c6 g3 a5 f2 h6+ Kh7 e5 g2 c7 f3 e6 b3 a6 b2 e7 b4 e8R b3 Na3 b1R Nc4 b2 Rh4 Bg7 Rh3 Be6 c8Q Nf6 Ne3 Ne4 Qd7 Nc5+ Kd2 d3 Qf7 d4 Qc7 Bg8 Ne2 g1B Ra2 Bh2 Nd5 Bf4+ Re3 Ra1 Qb3 b1R Qa3 Rb7 Rb2 Ra2 Rh4 Qe8 Ne7 Qh5 Kd1 d2 Kc2 d1R Re6 Bd2 Nf4 Re1 Rc6 Re6 Rb6 Rg6 Ne6 Raa7 Nd8 d3+ Kd1 Be3 Rhb4 d2 Kc2 d1R Bd2 Rb1 Bc3 Bc1 Bf6 Qh3 Kc3 Qc8 Bg2 f1Q Qa4 Qh1 Bf1 f2 Qac6 Qd7 Qd5 Qa4 Kc4 Qd1 Kb5 Ra8 Bg2 f1N a7 Nh2 Bh3 Nba6 Bf1 Rc8 Qe4 Rbb8 Qa8 Rb7 Re2 Rcb8 Re1 Rba1 Rb2 Ra4 Rb4 R1a2 Rb2 Nf3 Qd7 Rc7 Qdc6 Qh4 Rf2 Nh2 Qcb7 Qh3 Rbe6 Qc3 Be5 Bf6 Kb6 Rd7 Kc6 Qa1 Qc8 Rb1 Qcb8 Rdb7 Qc7 Bf7 Rc2 Rf8 Bb2 Kh8 h7 Kg7 h8R Bg8 Rh4 Bd4 Rhe4 Kh7 Rd6 Bh8 Rb4 Rf4 Be5 Qc3 Rcb2 Rh4 Bd4 Qe3 Bc3 Bd4 Rf6 Qe5 Rd6 Qh8 Rde6 Bg7 Bf6 Nd7 Rd6 Nb6 Kb5 Nd7+ Rb6 Ndc5 Rg2 Bb2 Rc2 Bc1 Rcb2
3b3B/Q1nQ1BKn/1NB5/k1nN1q1R/b4nR1/rq6/1rPp1n1B/bb1b4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 d5 e4 Kd7 h4 Kc6 e5 Kb6 h5 f5 e6 b3 h6 d3 e7 g3+ Kf3 g2 e8Q d2 h7 d4 Qf7 d3 Ba3 g4+ Kf2 b2 Qe8 f3 Ke3 g3 Kf4 f2 Ke5 f4 Bd6 f3 Rh4 Be7 Re4 Qd7 Re2 Qf5+ Kd4 Bd7 Re4 Na6 Re6 Nc5 Re5 Nf6 Bb8 Bd8 Qc1 d1N Ne2 g1N Nec3 g2 Qh5 d2 Re4 Nh3 Ba6 f1B Ra3 g1B+ Re3 f2 Re5 Nf4 Qf7 Ka5 Bc4 b5 Nd5 b4 Rg3 b3 Na3 b1Q Rg4 b2 Bd6 Qa2 Qa1 b1B Bb8 Re8 h8B Qb3 Qg7 Bb5 Qd7 Be2 Bd6 Nh7 Qa2 Qg6 Rh5 Qf5 Qa1 Bh2 Bb8 f1N Bc7+ Ka6 a5 Nf2 Bce5 Ne3 Bc7 Ka7 a6 Bd1 Qa2 Rb8 Qa1 Ba4 Qa2 Ka8 a7 Kb7 a8B+ Ka7 Bc6 Rf8 Nb6 Ned5 Nb5+ Ka6 Nc3+ Ka5 Bce5 Nc7 Bf7 Bg3 Ncd5 Re8 Bd6 Re3 Qa1 Qb5 Bde5 Ra3 Bd6 Qb3 Qa2 Qfd3+ Ke5 Bgh4 Qa1 Qh3 Kf5 Bhf6 Qa2 Ba1 Bde5 Ng2 Kg6 Nf4+ Kg7 Qhd3 Qb2 Qf5 Qd4 N4d3 Bg3 Nf4 Bh2 Qc3 Na8 Rb2 Nab6 Qb3 Qe5 N7a6 Qb8 Nc7 Qa7+
r6Q/3rpBkB/1bRrr1n1/r1b1bB2/PqQ3N1/6B1/2qR2Nb/n2b1K2 b - - 0 1 illegal: No proof kernel
R1Q3bB/nq1N1R1q/2q2R2/b1n1Nb2/2B3R1/2nn2K1/2r1QPbp/n2rk3 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 c4 Ke6 a4 Ke5 a5 d5 a6 b5 c5 h5 g5 e3 c6 Kf4 c7 e5 a7 d3 g6 d4 g7 e4 Nd2 b3 Ra6 b2 Bh3 b1Q Bf5 e2 Qa4 h3 Bh7 b4 Ngf3 b3 Rf6+ Bf5 c8R h2 Rc7 b2 Nh4 Bb4 Rd6 Nc6 Qa6 Qf6 Rcd7 Rd8 a8Q Na7 Re6 Ba5 Rb6 Qc6 Q6b7 Nf6 Nf3 h4 g8R h3 Rd5 Nd7 Rf8 Nc5 Rf1 h1B Ne5 h2 Qd7 Bg2 Nf7 Qc2 Qe8 b1Q Rb8 Qbb7 Bg8 Rh7 Nd6 Rc7 Nb5 Rdd7 Nc3 Rd8 Nb3+ Kf3 Rg1 Qb1 Kd2 e1N Rd7 Nc2 Rf6 Na1 Rdf7 e3+ Ke1 Qc2 Bb2 e2 Nc1 Qb1 Kd2 e1N Qe6 Rd6 Qc8 Rd8 Kd1 d2 Na4 Qbe4 Nb6 Ned3 Nd7 Qh4 Re1 Qh7 Re4 Nab3 Kc2 d1N Rg4 Nc3 Ba1 Qe4 Bb2 Na1+ Kd2 Qec6 Ne2 Ne5 Nf4 d3 Ke1 N3a4+ Kd1 d2 Ng6 Ned3 Rc4 Bh3 Nge5+ Kg2 Ke2 d1B+ Ke3 Kf1 Rg4 Bg2 Bd4 Bb3 Bc3 Ne1 Kf4 Ned3+ Kg3 Ke2 Bb2 Ke1 Bd4 Qbb5 Qab7 Nc3 Ra8 Qba6 Qb5 Qcb7 Qc6 Ba2 Qf3 Qac6 Re7 Bb3 Bc4 Ba2 Ref7 Bb3 Ba6 Bbe6 Bc4 Bd5 Rf8 Bg8 R8f7 Nb4 Rd6 Ncd5 Nb6 Rcd7 Ng6 Nc3 Bh8 Re8 Rdf6 Re2 Ne5 Rd1 Nbd7 Nbd3 Nb6 Red2 Nbd7 Rc2 Qe2+
N3k3/qb1b2n1/N1Q3q1/rB5b/Bn1b3B/1q1p2Q1/r1P3r1/1RBRrb1K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 Kg2 f5 e4 d5 h4 b5 a4 b3 e5 f3+ Kh2 f4 e6 b2 a5 b4 h5 b3 a6 f2 h6 g3+ Kg2 f3+ Kh3 g2 Kh2 g4 e7 d3 a7 d4 h7 d2 Ra4 d3 Re4 Qa5 Na3 b1R Nc4 b2 Ne5 Nh6 Qe1 d1B Nc4 Nc6 Qd2 Bg7 Qe3 Nb4 Bd2 Bb7 Nb6 Bd4 Bc1 Nf5 Ne2 g1R Nc3 Ng7 Bh3 f1B Nb5 f2 Qg3 Bfe2 Rf4 f1B Rf5 Rg8 h8B Ra1 Rh5 b1Q Nc7+ Kf7 Rd5 Ra2 Na6 Ke8 Rb5 Qb3 Bg2 Qaa4 Bd5 Bh3 Bc4 Re1 Rg1 Bef1 Rh1 Ne6 Bf6 Ng7 Bh4 Bde2 Rh5 Qc6 Bb5 Ra5 Ba4 Bd1 Rb5 Qg6 Qe3 g3+ Kg1 Rd8 a8Q g2 Kh2 Rc8 Qg3 Bd7 Rg1 Rd8 Qc8 Bh5 Qc6 Ra8 Rh1 Kf7 e8B+ Kf8 Bf7 Ra7 Bc4 Ke8 Na8 Rf8 Rd5 Rf4 Rf5 Rg4 Bcb5 Rg5 Rf2 Rg4 Rd2 Rg5 Rd1 Rg4 Kh3 g1Q+ Qgg2 Qe3+ Kh2 Qe7 Qf2 Rg3 Rg1 Rg2+ Kh1 Qc5 Nb8 R7a6 Qg3 Qa7 Bcg5 Re4 Rd2 Bfe2 Rb1 Bf1 Rdd1 Re1 Bd2 Qbf7 Bb3 Ra2 Bc1 R6a5 B3a4 Qb3 Na6
3BqQR1/3nRqnK/N1qn4/2n1Q2N/2Q2b2/pqqQ1Bk1/b1rbPr2/8 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 d5+ Kf3 Ke5 c4 f5 b4 a5 g5 d3 g6 h3 b5 d4 c5 h2 c6 a3 b6 a4 b7 h4 c7 a2 g7 h3 Bd2 a3 Qe1 Bd6 Bg2 Qe8 Bc1 d2 Bb2 d1N Nc3 d3 Qg3 d2 Qf2 Ne3 Qh4 d1Q Qf2 Nc4 Rc1 a1B Qf1 Be6 c8Q Nf6 g8Q Nbd7 b8Q Nh5 Qb4 Ng7 Qh7 Rf8 Qh8 Qb3 Qa6 Rc8 Kf2 f3 Kg3 f2 Kh4 Kf4 Qd1 f1Q Qb8 Qf3 Na4 Qfc3 Qd3 Bc7 Qh5 Nd6 Nf3 Bd5 Rhg1 h1N Rcf1 h2 Ng5+ Nf2 Bf3 Nfe4 Nh7 Nec5 Nf6 Ba5 Rf2 h1Q+ Rh2 Rf7 Rg2 Qhc1 Qh8 Be6 Qf8 Q1c2 Qdc4+ Qe4 Qd3 Qc6 Qac4+ Qd4 Rg3 Nh5 Qc1+ Bd2 Rg7 Qcd5 Bh1 Ne4 Rg8 Qbb4 Bc3 Qdb7 Nb6 Ba2 Na4 Qb3 Nc5 Qdc4 Bb4 Be5 Ba5 Nb5 Bd8 Qb6 Rh3 Ng7 Nh7 Qcc2 Qa8 Nbd6 Na6 Rc5 Qad5 Qc6 Q3d4 Qcd3 Qca1 Rc2 Re3 Qdc4 Qd3 Nec5 Be4 Qcb4 Qad4 Q4c3 Qa4 Nge6 Kh5 Ng7+ Kg6 Kg4 Nb8 f4 Qac4 f3 Na6 f2 Kh6 Bh2 Bg2+ Rf4 Re7 f1Q Qe5 Qff3 Bh1 Qfd5 Bg2 Qdf7 Nf6+ Kh4 Be4 Rf2+ Kh7 Bhf4 Bf3 Kg3 Nh5+
Bn6/6bR/1b2K1N1/1b2n1r1/nbr1QP1q/B1pkbRN1/Q1R2R2/1q2rr2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 a4 c5 g5 b5 d3 h5 f3 e3 g6 h3 a5 e5+ Kg3 c3 f4 e4 g7 c2 a6 c4 a7 h2 Ra2 e2 Ba3 c1B Bg2 e1B+ Rf2 e3 Qc2 h4+ Kf3 h3 Re2 b3 Bf1 b4 Rf2 e2 Rg2 b2 Rf2 b3 Qd1 Beb4 Nd2 b1Q Qc2 e1B Be2 b2 Qa4 Qh4 Ne4 Ba6 Ng3 Nh6 g8R Bg7 Rc8 Be3 Rc7 Kc3 Ke4 Rg8 Kd5 Nf7 d4 Bb5 Nf3 Ne5 Ke6 Rc8 Rhf1 h1R d5 h2 d6 Rg1 d7 h1R Bd1 Kd3 Rb7 Bec3 d8R+ Bcd4 Bb3 Rc5 Rc8 Rd5 Rbc7 Bb6 Rh8 Rd4 Rh7 Re4 Rc1 Rd1 Rcc2 Rhf1 Qa5 Rde1 Ba4 Ba6 Bc6 Bb5 Rc8 Qc1 Qa4 b1N Qb3+ Nc3 Qa2 Na4 Rc7 Qd8 Nh4 Qb1 Ng6 Qh4 Re7 c3 Rf3 Na6 Rcf2 Rd8 a8Q Rg8 Qe8 Nb8 Ba8 Rc4 Rc2 Qg5 Rhh2 Qh4 Rhf2 Rf8 Qc6 Rf5 Rf7 Rg5 Ra7 Bh8 Rh7 Bg7 Qe4+
K4n2/NnQB1nB1/1b5r/Q3bNRn/q1rPp3/2R2br1/1q3Rr1/1n1k2R1 b - - 0 1 illegal: No possible last move
5rnN/3k2bK/1b2R3/1B5Q/pB1nr1Q1/N1N3Rr/1n1PNb1q/1q2r1bb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 h5 Kf3 f5 b4 c5 e4 a5 g4 c3 e5 h3 b5 h2 e6 a3 e7 c2 b6 h4 b7 a4 g5 c4 g6 c3 g7 h3 Qe1 a2 Qh4 Qd3+ Kf2 f3 Kg3 f2+ Kf4 Nc6 Kg5 f4 b8Q f3 Qg4 Rh4 Na3 Nd4 Qf5 Re4 Qff4 Kd7 Kg6 Bb7 e8N Bc5 Qf8 Bb6 Rb1 a1B Be2 f1N Qa7 f2 Kh7 Ne3 Bf3 f1R Kg6 Nc4 Qf4 Nb2 Qa5 Rfe1 Nc7 Rf8 Ne2 Bd5 Rg1 h1Q Rg3 h2 Qg5 Qg1 Qb4 h1R Ncb5 Rh3 Qh5 Qh2 Bh1 Nc4 Bb2 c1B Kh7 c2 Bc3 Bcb2 Bg2 c1B Bf1 Ne3 Qc4 Nd1 Bb4 Bc3 Rb3 Qb1 Rg6 B3b2 Rbg3 Bc3 Re6 Nb2 Ba5 Bb4 Nbc3 Be7 Bb4 Bh4 Rgg6 Bf2 Rg3 Ne7 g8N Bc6 Nh6 Ng8 Rf3 Nc2 Qd3+ Rd4 Rf5 Bh4 Qdf3 Nc4 Ncb5 Bcb2 Qfg4 Bh1 Ng1 Rde4 Nf7 Bg7 Nh8 Bad4 Rf3 Nb2 Nc3 Be3 Bd3 Nd4 Nge2 Bg1 Bc4 Bhf2 Rg3 Be5 Bd3 Bg7 Bb5+
1Qq2BK1/1r3N1r/nkB5/2R1N1p1/1QRPbr2/1qB1n2q/3q1r2/3Bn1br b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kc6 a4 b5 e4 f5 h5 g5 d3 b3 a5 b4 a6 b2 a7 g3+ Kf3 b3 h6 g2 e5 c3 e6 c2 e7 Nf6 e8Q+ Kb6 h7 c5 Rh6 c4 Qde1 c3 Q8e3+ Bc5 Rh2 Ng4 Nh3 g1N+ Kg2 f3+ Kg3 f2 Na3 b1R Bg2 f1Q Nf2 b2 Qe8 Ne3 Ng4 Nf3 Rh4 Bb7 Ne5 Qc8 Nf7 Na6 Rc4 Be4 Qd2 Rb8 a8B Ne1 Bc6 Rb7 Bf3 Qh1 Bd1 f4+ Kf2 f3 Kg3 Rf8 h8B f2 Bg7 Rh8 Bf8 f1R Qe5 Bd4 Qb8 Rh7 Ra2 Ra1 Rc5 b1R Bb2 c1Q Rc4 c2 Bc3 Rf2 Rc5 Nf5+ Kg4 Qb2 Rc4 Be3 d4 c1Q Rc5 Qb3 Rc2 Ra2 Rc4 Rf1 Rc5 Bg1 Rc4 Rg7 Rc5 Qg2+ Kh5 Rh7+ Kg6 Rf4 Kf6 Qh3 Kg6 Rh8 Kf6 Ne3+ Kg7 Rh7+ Kg8 Qcb2 Rc1 Q2c2 Rc4 Qd3 Qb2 Rba1 Qb1 Raf2 Rc5 Qd2 Qb2 Nc7 Nc4+ Ka6 Nce5 Kb6 Bb4 Na6 R1c4 Rc1 Bc3 N1c2 Qa3 Bh2 Bf3 Rh1 Qa4 Ne1 Bd1 Bg1 Qb4+
3nQ3/q1qQ4/2r1Bkb1/pK2Bb1B/2r2Nqb/1B2qR2/1Rq1N1P1/n4r1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 d5 e4 h5 b4 f5 c4 f3 e5 f2 c5 a3 c6 f4 c7 h3 b5 f3 b6 h4 b7 h2 e6 a2 Na3 h3 Qd2 Nd7 b8Q Nc5+ Kc2 d3+ Kc3 d4+ Kc4 Rh6 Kb4 Nb3 Qe1 d2 Ba6 f1B Ne2 d1Q Bc4 d3 Qb5 f2 Qc3 d2 Qce5 Qc2 Nf4 d1Q Qb8 Qg4 Bb5 Bd3 Rf1 h1Q Bd2 h2 Qf5 Qg1 Ka4 h1B Rab1 a1Q Bc4 a5 Bd5 Qag7 Rb2 Na1+ Bb3 Bd7+ Qbb5 Rc8 Nb1 Rg6 Qh5 Nh6 Nc3 Nf7 Ne2 Qe8 Bc3 Nd8 Be5 Qef7 Qf5 Be8 Qh5 Bf5 Qc6 Rh6 Kb5 Qh7 Qg6 Bg7 Qh5 Bf6 Qg6 Bh4 Qg8 Ra8 c8B Qhg7 Bd7 Rc8 Qb7 Rc4 Bb8 Kf6 e7 Kg5 Qc8 Rhc6 Be6 Kf6 Bd6 Qh7 Qb7 Qfg7 Qa7 Bh5 e8B Qd7 Qc7 Qdg7 Qc8 Qa7 Bg6 Qhc7 Qd7 Qd3 Qge8 Qc2 Rd1 f1R Rd3 Qgd4 Rf3 Qde4 Bh7 Bf7 Bg6 Qee3 Bh5 B7g6 Be5+
3b2b1/k1q2Rbn/R2r1pR1/1rn1RQ1r/3n1q2/3N1B1P/Nrb1Q1b1/2B1K3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 g5 c4 d5 a4 Kd7 h3 Kc6 c5 b5 e5 Kb7 c6+ Ka7 c7 b3 a5 d3 e6 g3 a6 d4 e7 g4 e8R b2 Ra2 b4 Qb3 d2+ Ke2 d1R Qf3 g2 Qc3 g3 Nf3 g1B Bg2 b3 Nbd2 b1Q Qb4 b2 Ra4 Be6 c8R Rh5 Nf1 Qf5 Ra5 b1R Nh4 d3+ Kf3 d2 Ke2 Nf6 Ba3 Nh7 Rh2 f6 Be4 g2 Qe7+ Nd7 Ng3 Bg7 Nf3 Rb5 Ne5 Rab8 Bf3 Bg8 Bc1 Bb6 Nd3 Qc7 Ne4 Nc5 Nc3 g1N+ Kf2 Qg5 Na2 Ne2 Rg2 Nd4 Qe2 Qg4 Re5 Qg5 Bg4 f3 Rf8 Qf4 Rf7 Rb2 Ra3 Ba5 Rg3 R8b5 Ra4 Rg1 Ra3 d1B Rg2 Bc2 Rg3 Kb6 a7 Rd1 a8Q Rd2 Qc6+ Ka7 Qd7 Rd1 Rg2 Rd2 Kf1 f2 Qf5 Rd1+ Ne1 Rd2 Bf3 Rd3 Rg6 Rd1 Kg2 f1B+ Kf2 Bg2 Nd3 Ndb3 Ndb4 Rd6 Ke1 Nd4 Rae3 Bb6 Nd3 Qd7 R3e4 Bd8 Re6 Qc7 R4e5 Rd7 Rc6 Rd6 Ra6+
r3b3/4NnnQ/2rBPnr1/qNR1R1B1/2Q1p1kb/5rBq/3n4/rB3bK1 b - - 0 1 illegal: No proof kernel
4qNRq/5Q2/2n1P1bb/1Nrr1npb/1rrQ3k/3q3B/K1Rr3B/2q2BB1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 e4 Kf6 c4 Kg5 Kc2 d5 Kb2 b5 a4 f5 h3 g3 e5 b3 a5 b4 c5 d3 a6 d2 c6 g2 c7 d4 a7 d3 Ra6 f3 Ra1 f4 Qe2 d1R Nc3 f2 Qe1 d2 Rb1 f3 Rh2 Bg4 c8B Rh5 e6 Ne7 Nce2 Nbc6 Nf4 Kh4 Nge2 g1Q Ka1 b2+ Ka2 Qh1 Ba6 Qe8 Nd4 Nf5 Qe5 Rc8 a8Q g5 Qb7 Bh6 Ra1 b1R Nb5 Rb3 Bg2 f1Q Qd4 f2 Qf7 Qd3 Ba3 f1Q Ng6+ Kg3 Bb2 Rh4 Nf8 Bh5 Bc1 Re4 h4 Re5 Bh3 Rc5 Bb2 Qe1 Rc1 Qe5 Rc2 Qh8 Qc4 Qhf1 Bd4 Rbb1 Bg1 b3+ Ka3 b2+ Ka2 Rb8 Qd4 Rbc1 Nd6 Rb4 Nb5 b1R Rh1 Bg6 h5 Rd5 Rh2 Rc4 Rh1 Rbb4 Rh2 Bg7 h6 Rcc5 h7 Bh6 Rh1 Qf4 Rh2 Kh4 Rf2 Re1 Rf1 d1B Rf3 Re2 Bh2 Qf6 h8B Rd2 Bg1 Qfd8 Be5 Qf6 Rf2 Bdh5 Rf1 Qh8 Rd1 Qfe4 Beh2 Qf1 Nc3 Qff4 Baf1 Qd3 Nb5 Rcc4 Rb2 R1c3 Rc2 Rcc5 Rb1 R3c4 Rb3 Na5 Ra3 Nc6 Ra8 Qc8 Qf2+ Qfg3 Nd7 Qb8 Qe3 Qe1 Qe5 Qbf8 Qc3 Qe7 Rg8 Qe8 Nf8 Qc1 Qd4+
2BR3N/q1QNB2n/B3p1rr/k1b2b2/1n1Q4/nP1rb3/1BR1q2b/1n4nK b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 d5 c4 Kd7 f4 Kc6 Kf2 Kb6 Kg2 h5 g5 a5 g6 h3+ Kh2 d3 g7 e3 f5 a3 b3 a2 f6 h4 f7 e2 Ba3 e1N Qg4 d4 Be2 d2 Bd3 d1N Qd7 a4 c5+ Ka5 c6 Qe8 c7 Rh6 Ne2 Raa6 Nec3 Nc6 Bd6 a3 Bc4 d3 Nd2 Nc2 Nde4 d2 Na4 Nf6 g8Q N6b4 Qg1 Nh7 Qg7 Nc3 Rhg1 d1R Bd3 Nb1 Bc5 Rag6 Qd6 Bf5 Bb5 Rd3 Kh1 h2 c8B e6 Rc1 Qd7 Bba6 Qa7 Qf4 Bd6 Be3 Bc5 Bg1 Be3 Ng3 Bc5 Kg2 h1N f8B h3+ Kh2 Nf2 Nh5 Be3 Be7 Bc5 Qg4 Be3 Kg3 h2 Kg2 Nh3 Nf4 Bc5 Bf2 Ng1 Nb6 Be3 Nd7 h1Q+ Kg3 Qh5 Kg2 Bc5 Qg3 Qe2 Qd4 Nc3 Rab1 a1B Rd1 a2 Rb2 Na3 Rc2 Ncb1 Rdd2 Bh3+ Kh1 Bf5+ Qh2 Bb2 Bfh4 a1B Bhf6 Bc1 Be5 Rg8 Ng6 Bc3 Nh8 Rgg6 Rd1 Be1 Bg7 Bh4 Qhe5 Bf4 Qb8 Bh2 Be5 Bf2 Qc7+ Bb6 Qf4 Be3 Bb2 Bc5 Qd4 Nd5 Qde5 Be3 Qec3+ Nb4 Nc5 Rd5 Rdd2 Re5 Rd7 Rd5 Rd8 Rd2 Nd7 Rd3 Qd6 Bbc5 Qcd4 Qb6 Qb8 Qa7 Qc7+
r5b1/Q4Q2/3P1b1Q/3r1rqR/1Br2rqn/3b2Np/B1R5/knQNqbK1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 e4 Ke6 d4 h5 g4 b5 a4 f5 d5+ Ke5 a5 c5 g5 b3 d6 b4 a6 f3 g6 b2 a7 c3 g7 c2 Ra3 h3 Qd2 b3 Ra4 f4 Ne2 h2 Qa5 h4 Rc4 h3 Rb4 Qh4+ Ng3 Ne7 g8Q Rh5 Bd3 Nf5 Rb7 Kd4 e5 c4 e6 c3 e7 Nc6 e8Q Be7 Qh8+ Bf6 Rb5 Qg4 Qa3 Nb4 Qd8 Be6 Qa1 Nd5 Qaa5 Bg8 Nd2 b1Q Qa2 b2 Qg7 Nh4 Re1 h1R Rb8 Rf5 Re2 Rd1 Ba6 Qa1 Re8 b1B Bb2 c1Q Re3 Bd3 Ba3 c2 Ndf1 Nc3 Rb2 Nb1 Qaf7 Kc3 Qh6 Rd2+ Kg1 f2+ Kh1 f3 Re5 Qe1 Bc4 c1R Qc8 Rcc2 Bc5 Qa5 Ba2 Qb5 Kh2 Rc1 Ne3 f1B+ Kg1 f2+ Kh1 Rf4 Rh5 Rdd1 Re2 Rc2 Rd2 Kb2 Bb4 Ka1 Re2 Rdd2 Nd1 Qbg5 Qc6 Rc5 Qcc7 Rd5 Qc1 Rc2 Rd2 Rcc4 Rc2 Rb8 a8Q Rff5 Qa4 Ra8 Qca3 Bg2+ Kh2 f1R Qc1 R1f4 Qaa7 Bgf1 Kg1
2Q3R1/N2Q2KB/nq1p4/b4r1r/k1bRq3/1nP1n2R/bb1B3R/b1n2rN1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 e4 f5 a4 b5 h4 f3 Kg3 b3 h5 b4 e5 d3 h6 d6 h7 Kd7 e6+ Kc6 e7 f2 e8R f4+ Kh2 g3+ Kg2 g4 a5 Kb5 a6 b2 a7 b3 Rh4 f3+ Kh1 g2+ Kh2 Nf6 Kg3 Bg7 Kf4 g3 Kg5 Nh5+ Kg6 Nf4+ Kf7 Ne2 Bh6 d2 Bf4 Na6 Rh2 Be6+ Kg6 Bc4 Rh4 Nc1 Qe2 d1N Rh1 Qb6 Ra2 Ne3 Rg8 Rf8 a8Q Rf5 Na3+ Ka4 Qa7 b1B Ra1 b2 Nh3 g1B Qc7 g2 Qc8 Bba2 Rh2 b1Q Nb5 Qb4 Qd3 Bb2 Na7 Qe1 Be2 f1R Qd5 f2 Bd3 Qe2 Qde6 Qf3 Rb1 Qe4 Bg5 Ba1 Rb5 Bb2 Rd5 Ba1 Rd4 Bb2 Rh1 Bh2 Kg7 g1B Bh6 Bg3 Bf4 Bh4 Bh6 Bd8 Qf7 Bh2 Ng1 Bg3 Rh3 Be5+ Kg6 Qc5 Bf4 Ba5 Qfd7+ Qcc6 Rd5 Bec3 Rd4 Ba1 Kg7 Bcb2 c3 Qb5 Qf7 Qb6 Rh2 Re1 Qfc7 f1N Bb1 Nd2 Q7d7+ Qb5 Bd3 Ndb3 Bb1 Rf1 Rh3 Nd1 Bd2 Ne3 Re8 Rhf8 h8R Rh5 Rh2 R8f5 Reg8 Qec6 Bc2 Qbb6 Rh6 R5f4 Bh7 Rff5 Qdc7 Qe4 Qc6+ Rb5 Q6d7 Rhf5 R6h3 Rh5 Qe7 Rbf5 Qed7+
1Q2n1R1/1kN2nqr/bp6/3n4/QbPr4/2Bbrn1Q/K1R1rr1q/N2B2Q1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 d5 e4 Kd7 g4 Kc7 a4 h5 c4 f5 Kc2 f3 Kb3 b6 e5 h3 a5 h2 e6 d3 e7 f2 e8Q f4 a6 f3 a7 d4 g5 d2 g6 d3 g7 h4 Ka2 h3 Kb2 b3 Qde2 d1R Q2e5+ Kb7 Q8e7+ Nd7 Be3 d2 Q5c5 Nh6 g8Q Nf7 Bg5 Rh7 Ra3 Qc7 Qb4 Nf6 Ra4 Ne8 Bd3 f1N Qd8 f2 Ka3 b2 Nc3 b1B Be2 Bd3 Nb5 Ne3 Ra6 f1N Nf3 Nd5 Bf6 Re1 Rg1 h1Q Ka2 d1R Nd2 h2 Qb3 Bb4 Bc3 Rb8 Bh5 Re2 Ra4 Qe5 Nc7 Qg7 Qa3 Re3 Nb3 Nd2 Na1 Nf3 Rg2 Qg1 Rc2 h1R Ra5 Qh2 Qb3 Ndf6 Rg5 Rhf1 Qa4 Ra8 Qad7 Rde1 Qh3 Nd5 Rg1 Rf2 Bg4 Nd2 Bd1 R1e2 Rg5 Nf3 Rg2 Kc6 Rg5 Rb8 a8Q+ Bb7 Qa3 Ba6 Qa4+ Kb7 Rg1 Qf6 Qgg2 Qg7 Qh1 Rc8 Rg2 Rb8 Qg1 Rc8 Nb5 Rc6 Nc7 Rce6 Rg4 R6e4 Rg3 Rd4 Rg5 Qf8 Rg8 Qg7 Qb8+
4NK2/4rQ1p/1b1B3B/n1P1n1nB/qb1kr3/R4R1r/4q1Q1/1brrN1Bn b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 f4 Kf6 g4 e5 c4 a5 b4 d5 b5 e3 Kd3 e4+ Ke2 a3 f5 Ke5 g5 a4 g6 a2 g7 a3 f6 h3 b6 h2 f7 d3+ Ke1 d4 b7 d2+ Ke2 Qh4 Bh3 d3+ Kf1 e2+ Kg2 e1R Qa4 d1Q Qe8+ Ne7 g8Q d2 Qa4 e3 Bg4 e2 Kf3 Nbc6 b8B+ Kd4 Kf4 Bf5 Qb5 Na5 Qe8 Nec6 Bd6 Ne5 Nc3 Bb1 Ne4 Qa4 Kf5 d1R Ke6 Qf2 Qe7 Re8 Qg5 Rg8 Bh5 Qf1 Qg2 Rg3 Nf6 Rh3 Bh6 Rc1 Bg6 Red1 Bh5 e1N Nd5 Qe2 Nc7 N1f3 Kf6 Rb8 Ne8 Ng5 Qc7 Be7+ Kg7 Rb7 f8B Bd8 Qf7 Bb6 c5 Re7 Kg8 Re3 Bfg7 Re4 Kf8 Rc3 Nh3 Rce3 Nf2 Rh3 Re1 h1N Nd3 Ke3 Qg4 Ng6+ Kg8 Bc2 Rb1 a1B Rf1 a2 Rb3 Bc3 Ra3 a1R Qg2 Bb4 Ne1+ Bd3 Bb2 Ne5 Kf8 Rac1 Bc3 Bb1 Rf5 Rg4 Rf3+ Ke4 Bd2 Kd4 Bf4 Rgh4 Bh2 Re4 Bg1+
n3N1b1/2r2P2/r3nB2/r1Q2n2/1br1q1B1/1K1Rp1kr/3q3b/RN1RnRQ1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kf6 c4 Kf5 Kc2 d5 a4 h5 c5 e5 g3 b5 c6 e3 a5 h3 c7 h4 a6 b3+ Kb2 h2 a7 h3 Ra5 e4 Na3 b4 Qd2 Kg4 f5 d3 f6 d4 Nc2 e2 Na1 e1B Qc2 e3 Rd5 d2 Bd3 d1N+ Kb1 b2 Ka2 b1R Bf1 d3 Nb3 d2 Rd3 Rh4 Na5 Nb2 Qc6 d1N Qd5 Bd6 Nb3 Na4 Qf7 Nd7 Nd4 Nh6 Qh7 Nf2 Rc3 Ndb6 Rd3 Nf5 Ngf3 Nc5 Bb2 Ne6 Be2 Rc1 Rf1 h1Q Kb3 h2 Nb5 Rh6 Bd1 Rc4 Nd2+ Qf3 Ba1 h1R Nb1 R1h3 Bc3 Bb7 c8Q Bd5 Qc5 Rc8 a8R Rc7 Ra3 Na8 Ra1 Be5 Nd6 Qd7 Kb2 b3 Ne8 Rg6 Ka3 b2 Kb3 Qd8 Bd4 Bb4 Be2 Bf4 Rdd1 Nd3 f7 Ne1 Bc3 Be4 Bf6 Qd2 Qh6 Rh4 Qh8 Kh3 g4 Kg3 g5 Rh3 Qh6 Bd3 Qh8 Qe4 Bg4 Rgh6 g6 Bd6 g7 R6h5 Na3 b1R+ Bb2 Rbc1 g8R Rc6 Bf6 Ra6 Nb1 Bf4 Qb6 Rc7 Qa7 R1c4 Qc5 Ne7 Nc3 Qc6 Rh1 Kf2 Nb1 Rg3 Qd6 Rha5 Ng7 Bh7 Qc5 Nf5 Rd8 Qe4 Rd3 Bg8 Ne8 Rf3 Rg1 Rg3 Qh1 Rh3 Bh5 Bg3 Bg4 Bh2 Rf1+ Kg3 Qg1+
n3R1bB/k1q1RP2/1qB2p2/5rbb/4n2N/6r1/nQnbN3/1Br1BQbK b - - 0 1 illegal: No proof kernel
1b2Bq1n/rq1b1b2/3rR1nN/B4r2/1q6/R1p1R1QK/1RrNP1Q1/n2bk3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 g4 Kf6 Kg2 Kg5 d4 b5 a4 c5 a5 f5 a6 h5 a7 h3+ Kh2 Kh4 g5 b3 g6 f3 g7 c3 d5 b4 d6 c4 d7 c2 Ra3 f4 Ra2 b2 Be3 c1N Qd6 f2 Bc5 b3 Bg2 f1R Ra3 f3 Qa6 c3 Qd3 f2 Qa6 Rh6 Ra5 Rd6 Bb4 Nh6 g8Q Nf7 Qb6 Nh8 Qa6 Nc6 Rd5 Ne5 Qg7 Neg6 Na3 b1Q Rb5 b2 Rb6 Nb3 Bf3 Na1 Rb5 Rc1 Qa4 f1R Re5 Rc2 Bg2 Rf5 Qa5 Qe7 d8R Bd7 Re3 Qf1 Bd5 b1B Qb5 Kg4 Re8 h4 Qb7 Ba2 Bg8 Bf7 Qc7 Qe4 Ba5 Qb4 Nf3 Be7 Qb8 Bf6 Nd2 Be5+ Rg3+ Kf4 Rhg1 Qf3 Rb1 Ke3 Re6 Kf2 Rb2 Ke1 Nac4 Qf4 Kh1 h2 Kg2 h1B+ Kh3 Bhc6 Ne3 Ba4 Ng4 Qf2 Nh6 Qfc5 Kh2 h3 Qb7 Bf4 Qg2 Qc8 Qe5 Qf8 Qe3 Be5 Qf4 Bb3 Re3 Bba4 Kg3 h2 Kh3 h1Q+ Qfh2 Rc8 a8R Rc7 Ra6 Ra7 Bh7 Rc1 Bg8 Bd1 Bh7 Rc2 Qg3+ Rf2 Bg8 Qhb7 Qhg2 Rd4 Bh7 Bb8 Bg8 Rd6 Bh7 Nh4 Be4 N4g6 Bc6 Bc8 Be8 Bd7 Qe5 Rf1 Qeh2 Rf2 Qhg3 Qc6 Bd8 Qcb5 Ra3 Qb7 Q3f3 Rf1 Ba5 Rf2 Qfg4 Rf5 Q4g3+
1q1B2BK/2N3n1/1r2nR1N/1q4q1/B2R1pP1/qb2rkr1/3n1b1n/1BQ1bQ2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 h5 Ke5 b5 g4 f5 a4 c3 d4 c2 e4 h3 a5 f3 a6 h4 a7 f2 Bb2 c1B Qb3 f4 Qa3 h2 Qb3 h3 Ba3 Na6 Qd1 b3 Nf3 b2 Nh4 b4 Bd3 f1N Nd2 b1Q Bb2 b3 Qe2 Bb4 Nc4 Nc5 Qg2 Ne6 Ra4 Ne7 Kf6 Be3 Nf3 Nf5+ Kg6 Nfg7 e5 Kd5 Ra2 c5 Na3 c4 Nb5 c3 Ra4 Re8 Kh7 Rb8 a8B+ Rb7 Qe2 c2 Ng5 c1Q Nf7 Qg5 Nh6 Bf2 Bf5 Re7 Kh8 Bbe1 Ra6 Nd2 Qf1 Bd7 Bc3 Qa3 Ba5 b2 Bd8 Nf3 Rg1 h1R Bg6 Qbf5 Nc7+ Ke4 d5 b1N d6 Ba4 d7 h2 Bh7 Bc2 Bg8 Bb3 Rb6 Ke3 Ra6 Rb8 Be4 Nbd2 Bb1 Rb6 Rg3 Rg1 Rh3 Nf8 e6 h1Q Rh5 Re8 e7 Qb5 Ra4 Rg3 Rd4 Nfe6 Rh2 Rf8 e8B Rf6 Rh5 Nh2 Rh3 Qb7 Rh5 Qh4 Rf5 Rf7 Rf6 Kf3 Be7 Qhh5 d8Q Qhg5 Qc8 Qb8 Bd8 Re7 Bd7 Nc5 Be8 Re3 Bd7 Nce6 Bc6+ Qbd5 Ba4 Qdc5 Qca6 Qcb4 Qac4 Qbb5 Qc1
nQr2rR1/Q3Qn2/br1RN3/3r4/1BP3q1/1q1BKNb1/6pk/qbQb2n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 h4 Ke5 a4 g5 e4 d5 a5 b5 a6 f5 a7 g3+ Kf3 d3 h5 d4 h6 g2 h7 d2 Qe1 d1Q+ Kf2 b3 Ne2 g1N Rh5 f3 Ba3 b4 Rh1 d3 Rh4 f4 Rh5 d2 Nbc3 b2 Rh6 b1B Rd6 b3 Nd5 b2 Bc5 g4 Ra5 Nd7 Be3 Nb6 Rf6 Nh6 Rg6 Qd7 Ra3 Nf7 Ra5 Ba6 Ng3 Rd8 a8Q Qb3 Rc5 d1B Bd3 Bd6 Qa7 Na8 Rc6 Rhe8 Ne2 g3+ Kf1 f2 Nd4 Rf8 Nc7 Rc8 Bd2 Qg4 Nce6 Bc7 Kg2 f1R Rg8 Bb8 Bb4 f3+ Kh1 f2 Kg2 Bc7 Rd6 Bb8 Qc3 Re1 Qc1 f1Q+ Kh1 Qf6 h8Q g2+ Kh2 Rf1 Qh4 Qfg7 Qe1 Rf5 Nf3+ Kf6 Qe2 Rd5 Qee3 Kg6 e5+ Kh5 Qeb6 Bc7 Qbb8 Qf6 Ned4 Qfg7 e6 Qf6 e7 Qh8 Nd2 Kh4 Ne6 Qhc3 Ba3 Qa5 Bb4 Qa1 e8Q Bbc2 Ne4 b1R N4g5 Rb2 Qe7 Bb1 Bc3 Qba2 Bd2 Rb6 Bb4 Qb3 Nf3+ Kh5 Bc3 Qf5 Kg3 Qf4+ Kf2 Qg4 Rc6 Be5 Ke3 Bg3 Nfg5 Kh4 Nf3+ Kh3 Rd6 Be5 Bb4 Bg3 Nd2 Kh2 Nf3+
2B1k1R1/KN1rqbr1/3nQ2q/2nr1Qbb/1p1Q4/1q1R1bB1/P3nNQq/8 b - - 0 1 illegal: No possible last move
q2q4/1br5/1QQ1bb1N/B3p2N/1N2PBq1/2N1r2r/R1Rn1n1k/K3bnr1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bd2 h3 Bg2 hxg2 Bg5 fxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 a4 Ke6 h4 Ke5 c4 Kf4 e4 d5 a5 g5 f3 Kg3 Kc2 b5 Kb2 e5 h5 b3 h6 b4 c5 d3 c6 d4 f4 d2 c7 d3 f5 Ra7 a6 Be7 f6 Bb7 c8Q Nc6 f7 Na5 f8B Bf6 h7 Nh6 Qb8 Nf5 Rh4 Ne3 Rh2 Nf1 Ra3 Nc4+ Ka1 b2+ Ka2 Qc8 Qe2 d1N Qe1+ Nf2 Rh6 Ncd2 Nh3 g1B Bd6 Kh2 Rc3 b3+ Ka3 g3 Rc2 g2 Nc3 b1B Kb2 g4 Qa8 g3 Bc7 Ba2 Qe3 Qg8 Qe8 Qf8 Qc6 Qa8 Ka3 b2 Ba5 b1Q Qeb6 Be6 Rg6 Qb5 Nf4 Qd5 Kb2 Qdd8 Ka1 Nc4 Qc8 d2 Qcc6 d1Q Nh5 Qg4 Bf4 Ncd2 Rh6 Nh3 Ra2 Bf2 Rg6 g1R Rg8 Qc7 Rc8 Qd8 Rc7 Be1 Rc8 Rf8 h8N Rh1 Nf7 Nf2 Nh6 Rf7 Bg5 g2 Be3 g1R Bf4+ Rg3 Rc7 Rg1 Rc8 Qdg8 Rc7 Qad8 Rc8 Ra8 a7 Rb8 a8N Rc7 Qbb5 Qgf8 Nb6 Ra8 Nbd5 Ra7 Bb4 Ra3 Qbb6 Qfe8 Ba5 Qf8 Ne2 Re3 Nec3 Qa3 Bb4 Qa8 Ba5 Kg2 Nb4 Rh3 Qd5 Rd7 Rc5 Rc7 Qdc6 Kh1 Na4 Kg2 Rcc2 Kh1 Nc3 Kg2 Ng3 Kh2 Nh5+
2Kn1rnb/7r/nNR3r1/Q2QQQ2/1nBN1nB1/n1p3r1/RkP5/1q1b2b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 h4 Kd4 a4 c5 a5 b5 f3 b3 a6 g2 a7 g5+ Kg3 e5 h5 b2 d3 c4 f4 e3 h6 e4 h7 e2 f5 e1N f6 e3 f7 e2 Ra5 b4 Nc3 b1N Qd2 b3 Qd1 b2 Rh2 Qb6 Na4 Bg7 f8Q Na6 Rh3 Nf3 Rc5 e1N Nc3 Na3 Qe2 b1R Na4 Rb3 Qf5 Ne5 Qd2 Nf7 Rc6 Nd8 Qda5 Rc3 Rhh6 Qb1 Nb6 Rb3 Qad5+ Kc3 d4 Nd3 Rh1 Ndb4 Nf3 g1B Qa5 Be6 d5 Kb2 d6 Re3 d7 c3 Bc4 Bf6 Kg2 g3 Kh3 g2 Kg4 Rc8 Nd4 Rg3+ Kh5 g4 Kg6 Bd5 a8B Bf3 Bb7 Rc7 Bc8 Bd1 Qad5 Bh2 Re1 g1N Rf1 Ne2 Re1 Nb7 Kf7 Nf4 Ke8 Bg1 d8Q Rf7 Qc7 Rf8+ Kd7 Nd8 Qce5 Rh3 Qa5 g3 Qed5 g2 Rf1 Nc5+ Kc7 Rg3 Bd7 Nca6+ Kc8 Bf2 Re1 g1R Be6 Rg7 Rf1 R1g6 Re1 Bg1 Rf1 Nh6 Bd7 Rhg8 h8Q Rh7 Qg7 Rg3 Qe7 Bh8 Qee5 R8g6 Be6 Ng8 Re1 Bh5 Rc1 Qa2 Ra1 Bd1 Qff6 Nb8 Bg4 N8a6 Qff5 Qb1 Ra2+
3r4/2R1nBR1/2B5/rB2Qq1n/n5Qb/n1pb1NP1/nBb1qbK1/1k1nN3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 d4 Kd6 e4 b5 a4 h5 e5+ Kd5 a5 Ke4 d5 c5 a6 f5 d6 f3 d7 c3 e6 f4 a7 c4 e7 c2 e8B h3 Ne2 b3 Rg1 h4 Ra4 h2 Ra6 h1N+ Ke1 b2 Bf7 b4 Nd2+ Kd3 Ra3+ b3 Bh5 b1N Ra6 h3 Be8 h2 Ra4 b2 Ra1 Qg5 d8Q+ Nd7 Ra6 Ne7 Ra5 Ng3 Kf2 h1N+ Ke1 Nc3 Bf7 b1N Bb2 c1B Rf5 Na3 Bg6 Nf2 Rc5+ Qf5 Ba1 Na2 Qb3+ c3 Qdb6 Nh5 g3 Nd1 Qc4+ Kc2 Qbb4 Nb6 Rc7 Na4 Qbb5 Be6 Qcb4 Bb3 Bf7 Bg7 Qe8 Bf6 Bb2 Bh4 Rh1 Rd8 Ng1 f2+ Ke2 Ra8 Ndf3 Kb1 Qe4+ Bc2 Ne1 Be3 Kf3 Bb6 Ba6 f1B Bb5 Bfd3 Kg2 Bf2 Ngf3 Rd8 a8B Rh6 Rf1 Ra6 Bac6 Ra5 Qe5 Nc1 Qg8 Na2 Nh2 f3+ Kh1 Bd4 Qg4 f2 Kg2 Bc5 Rh1 Ba7 Nhf3 f1Q+ Kh2 Qe2+ Kh3 Bf2 Kg2 Ng7 Rh2 Bf6 Rh7 Nh5 Rg7 Bg5 Qd5 Bh4 Qe5
K1nN4/1Bqk1NB1/b1r2Rn1/1r1PRrQp/b4n2/2r1Q3/nn6/Q1bb2Q1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 b5 e4 c3 d4 c4 g4 f3 a4 c2 g5 b3 g6 h3 d5 f2 a5 c3 g7 f4 a6 b2 a7 h2 Ra5 f3 Bh3 f1R Bg5 c1N Bf6 f2 Qg4 c2 Na3 b1N Qf4 b4 Qg3 b3 Qg2 b2 Bf5 Nd7+ Kd4 Qc7 e5 Ne7 g8Q Nc3 e6 b1R Ra4 Nd1 Ra6 Rb5 Nf3 Rh6 Ne5 Nb6 Rg1 h1B Nc6 Rb3 Kc5 Bd7 Q2g7 Rb8 a8Q Rc3+ Nc4 Bf3 Rg5 Ne2 Kb5 c1N Ne5 Rg6 Nf7 Bg4 Bd3 Nbc8+ Rb6 Bf3 Qa1 Na2 Ka6 Bg4 Ncd8 Ba4 Bd4 Bf3 Qe5 Rf6 Qg6 Bh6 Rf5 Bc1 Qg1 Ng6 e7 Rd6 Qf4 Bg4 Qg5 Kd7 Bg7 Nb2 Bc4 Re1 Bd3 f1B Rc6 Re6 Rb6 Re5 Rbf6 Nef4 Bc4 R1e4 Bd3 Bgd1 Bc4 Qc5 Bd3 Rec4 e8Q+ Kc7 Qe6 Rbb4 Qb6+ Kd7 Kb7 Qc7+ Ka8 Rc6 Ba6 Bc4 Bb7 Ba6 Qbe3 Rbb3 Re6 Rb5 Rff6 Rf5 Re5
r1B3qq/3np3/bk1b1R1B/1Nn3n1/2n4q/RnP5/Qr2N3/RqnK1R1Q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 d5 a4 Kd7 f4 Kc7 g5 h5 c3 b5 g6 d3 a5 e3 a6 b3 a7 h3 g7 h2 f5 e2 f6 h4 f7 b2 Bf4+ Kb6 Ra2 h3 Bg2 d2+ Kf2 e1N Ke2 d4 Qa4 d1N Be5 b4 Qa3 d3+ Kd2 b3 Bf6 Nf2 Bf1 Nd7 Bg2 Ba6 Qa4 Ne4+ Kd1 d2 Bg5 Nec5 Bf1 Ngf6 g8R Nfe4 Qc4 Bh6 f8R Ned3 Ke2 d1N Bg2 Ne3 Ra4 Nc1+ Ke1 Qc8 Bf6 Bf4 Qe6+ Bd6 Bg7 Nc4 Rf1 Ng5 Na3 b1Q Rgf8 b2 R8f6 Qg8 Ne2 Rh4 Rhg1 h1Q Bb7 h2 Bc8 Rg4 Qe4 Rg2 Bh6 Rf2 Qh7 Qhe4 Rh1 Qh4 Kd1 Rg2 Rhg1 h1Q Nb5 Q1h2 Ra3 Qe5 R6f4 Qeh8 Qc2 Qa1 Rh1 b1N Qa2 Nbd2 Rf6 Qb1 Rhg1 Ndb3 Rh1 Rb8 a8Q Rf2 Rhg1 Rh2 Qh1 Ra8 Rg4 Ncd2 Rga4 Nc4 Qb2 Rf2 Ra1 Rg2 Qa2 Rf2 Ra3 Rh2 Ned4 Rb2 Ne2
1b1R1n2/1r2p3/knn1BB1b/P4Bq1/1nN1b3/1QN1r1rb/3b1K2/QR3B1r b - - 0 1 illegal: No proof kernel
5BnR/5B2/1bN2Nrr/4qPr1/B1b2R2/r5bq/npB4q/k1QK1Qbq b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 a4 Ke6 f4 Kd5 g5 h5 c3 b5 a5 e5 g6 h3 a6 h2 a7 h4 f5 e3 g7 e2 Bf4 Kc4 Ra5 d5 Bd2 d3 Ra4 e4 Ra3 h3 Qc2 d4 Ra6 b3 Qc1 b2 Ra5 Kb3 c4 b4 c5 Qd5 c6 Rh6 c7 Ba6 c8Q Bc5 Bg2 Nc6 Be3 d2+ Kf2 d1R Qd2 d3 Qd7 e1B+ Kf1 Bb6 Nf3 Bg3+ Ne1 Bc4 Na3 Ka2 Qc8 b3 Qb8 Ka1 Qc1+ b1Q Ra4 b2 Qf4 Qe5 Bc5 e3 Bf8 Nb4 Bc6 Na2 Nb5 Bf2 Rb4 Bg1 Nc3 Rd2 Ba4 Rg2 Bc2 d2+ Nd3 Rgg6 Ke2 d1R Qf1 Rd2+ Ke1 Rdg2 Ne4 e2 Nf6 R2g5 Kd2 e1B+ Kd1 Bh4 Ra4 Bg3 Nb4 Rc8 a8B Rc7 Ra3 Ra7 Rf3 Ra3 Nc6 Bge3 Rg1 h1Q Rf4 Qh2 Rh1 Bg1 Ba4 Qg2 Bc2 h2 Bb7 Qh3 Ba6 Rh4 Bb5 Rhh6 Bba4 Bge3 Rg1 h1Q Rg2 Bg1 Rh2 Ne7 g8B Q1g2 Bf7 Ng8 Qf3 Qf2 Rh1 Qfh2 Qf1 B1f2 Bab3 Q2g2 Qg1 Rh4 Ba4 Qg4+ Kd2 Rh7 Rh5 Qh2 Qce1 Qgh3 Qe3 Rh8 Qg2 Qbh1 Qf1+ Be1+ Kd1 Bef2 Qd2 Bg1 Qe3 Rh7 Rh6 Rhg7 Rh7 Rh6 Rh8 R7g6 Qc1+
r3rB2/b1qnqBr1/b2rN1q1/3PR1pN/1B4Bb/3q2k1/1Q1n1R2/1Q2Kb2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 e4 Kd6 h4 Ke5 d3 b5 h5 c5 a5 f5 a6 b3 a7 c3 h6 c4 h7 f3 Qd2 f2+ Kd1 b4 Na3 c2+ Ke2 f4 Nh3 g3 Ra2 g2 Rb2 g1R Ng5 c3 Qe1 f3+ Ke3 Ba6 Rh2 Be7 Rb1 b2 Nh3 b3 Nb5 Nd7 Nf4 Bh4 Nd4 Qe7 Bh3 f1Q Nh5 f2 Ne6 Ngf6 Bg4 Rhe8 Bd2 c1Q h8B c2 Rg2 g6 Bg7 g5 Ra1 b1R Bf8 b2 Kf3 Rh1 Bb4 Rh2 Ra4 Ra1 Ra2 b1Q Qd2 Rad8 a8Q Qfd1+ Ke3 f1B Qb7 Ra8 Rb2 Ra5 Re2 Rd5 Kf3 Rd6 Qe1 Qdd2 Rf2 Qc3 Ra2 Q1d2 Ra5+ Qc5 Qe2 c1B Qb6 Qc3 Qb2 Be3 Qb5 Qd5 Qb8 Ba7 Qb5 Bg2+ Ke2 Qc5 Qb7 Qd4 Kd2 Qc2+ Ke1 Bf1 Qb1 Qdd5 Qb6 Qc7 Qb5 Nc5 Qb8 Nb3 Rc5 Nd2 Qb6 Rdd8 Qb8 Nd7 d4+ Kd6 Qb5 Qf5 Qb2 Qg6 Qd3 Qc3 Qdb1 Qd3 Rf5+ Kc6 e5 Kd5 Qd1 Ke4 d5 Nb8 Qdb1 Rd6 Nd8 Nd7 e6 Qef7 e7 Rh3 Ng7 Rf3 Re5+ Kf4 Nde6+ Kg3 Nf4 Qff6 Nge6 Qfg7 Nh3 Rf7 Nhf4 Reb8 e8B Re7 Bf7 Rbe8 Be2 Q7f6 Bf3 Qfg7 Bg4 Q7f6 Bg8 Rg7 Bf7 Qe7 Nh5+
nBQR4/2BRqQ1q/K1bnn3/1p4bN/3r1r1N/2Pn1rB1/8/2qrk1qB b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Kf6 f4 Kf5 h4 b5 a5 g5 c3 d5 a6 e5 h5 d3+ Kd2 g3 a7 b3 h6 b2 h7 d4 Bh3+ g4 Qc2 e3+ Ke1 Ke4 f5 e2 Kd2 e1N f6 g2 f7 g3 Ra3 Nf3+ Kd1 Na6 Nd2+ Ke3 Bd7 Kf2 Rh3 b1Q Qa2 e4 Bg4 e3 Qb2 Nh6 Rh1 Ng5 Rh5 Bd7 Ne2 Nf5 Nf3 d2 Qa2 Qe7 Nf4 Nd6 Nh4 Ne6 Rd5 Nac7 Nh5 Bh6 f8B Bc6 Bf3 Bg5 Ra4 Rg8 h8B Qbh7 Be5 Rg6 Kc2 d1R Kb3+ e2 Kb4 g1Q Ka5 g2 Bef4 d3 Bh2 d2 Rad4 e1N Qb3 Re8 a8Q Nd3 Qc8 Na8 Ka6 Rf6 Bg7 Rf7 Bge5 Ke1 Be4 Rf3 Qa2 Nb7 Rd8 Ref8 R4d7 R8f4 Bc7 Nd6 Qd5 Qh1 Qf5 Qf1 Qf7 g1Q Ba3 Rc1 Bc5 d1R Ba7 Rb1 Bd5 Rbb4 Bab8 Rbd4 Be4 Qfg2 Bd5 Qd2 Be4 Qc1 Bd5 Rg3 Bh1 Rgf3 Bg3+
qbr1nb1b/8/bn4QP/B4N1p/2r5/Q1qr3r/K2RQR1n/N1kBQ1n1 b - - 0 1 illegal: No proof kernel
3NrNK1/k2q1rR1/2b2p2/2qq1Qbb/5Prn/1r2B2B/2n5/1N1bRQNq b - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 h5 g4 c5 a4 f6+ Kg6 e5 Kf7 e3 d4 c2 f4 h3 a5+ Ka7 g5 b5 g6 h2 g7 c4 a6 c3 d5 e4 d6 b4 d7 e2 Ba3 c1Q Nd2 e1Q Ne2 e3 Ra2 c2 Nb3 h4 Na5 b3 Rb2 h3 Bb4 Qed2 Bg2 Rh7 Bb7 Nh6+ Kg6 Nc6 g8Q Rf7 Nc4 Nf5 Be7 Nb4 Ne5 Rb8 Nd3 Bh6 Qe8 Bg5 Nf2 Qd5 Re1 h1B Nc3 h2 Nh3 e2 Nb1 Qe3 Bf8 c1R Ng1 Nc2 Qe4 Qec5 Ba8 Qe8 d8N Qed7 Ra2 b2 Qe6 Nd6 Qf5 Rb3 Qdd3 Bb7 Qdh3 Be4 Qf1 Bc6 Bb7 h1Q Bc8 Bf3 Be7 Rf8 Kg7 Rf7+ Kg8 Bh5 Ra4 Rd1 Bf8 Rdd3 Re4 Rg3 Re7 Ka8 a7 Rg4 Rd1 e1R Rc1 Re6 Re1 Rh7 Rg7 Re5+ Qe6 Nf5 Bd6 Ree3 Be5 Nh4 Bd4 Re4 Be3 Re5 Rg6 Rf7 Rg7 Re4 Qf5 Ree7 Ne6 Re8+ Nf8 Q7e6 Bd7 Kb7 a8N Ka7 Bc8 Qe7 Nc7 Qed7 Na3 b1B Ne6 Na1 Nd8 Bc2 Nb1 Bd1 Ba6 Nc2 Be2 Rg3 Bg4 Rg2 Bh3 Rg3 Nd2 Rg4 Nb1
2n3q1/br2RpR1/3P1N2/Nb1rRK2/q1n1BQrq/1RB1q3/3Q3n/3k1n1r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 g4 b5 d4 h5 a4 c3 g5 c4 e3 c2 a5 f3 a6 c3 g6 b3 g7 b4 a7 b2 Be2 b3 Bf1 f2 Bb5 f1N Ra6+ Nc6 Rh3 Bd7 Ra5 Nh6 g8Q Ng4 Qd3 Ne7 Qh7 Nc8 Qd1 Rg8 Rh1 h3 Be2 h4 Rd5 h2 Bb5 h3 Qe2 Bc5 Bd3 Bb5 Bd2 c1Q Na3 b1N Qh4 c2 Bc3 b2 Qd2 Qd1 Ne2 c1Q Nc4 Qa4 Na5 Na3 Ng3 b1R Nh5 Nc4 Rg1 h1R Nf6 Ngh2 Qf4 Rg4 Re5+ Kd6 d5 Qg8 Rg2 Rb8 a8R Rb7 Rg1 Ba7 Rb8 Kc5 Kf5 Qca3 e4 Rd1 Re7 Qc1 d6 Qca3 e5 Qc1 Qa2 Qe3 Be4 Rd5 Bd4+ Kb4 Qd2+ Ka3 Bc3 Rd3 Nc6 Kb3 e6 Rd4 Rd7 Rd3 e7 Rd4 e8R Rd3 Qe1 Kc2 Qef2+ Kc1 Na5 Kd1 Rde7 Rd5+ Re5 Nf3 Qa2 h2 Rg3 Rg1 Rg2 h1Q Re7 Qh6 Qf2 Rh1 Rg1 Nh2 Rg2 Rh4 Rg7 Rg4 Qa2 Qh4 Qb2 Rd7 Rb6 Rb7 Qbf2 Ba6 Rb3 Bb5 Qd2+
2k2Kb1/1Pr2Q2/3nbQ2/qn3B1R/qN1nq1BN/r1B2b2/2pb4/n1B2R1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 a5 Ke4 h5 Ke5 c5 b4 f5 e4 a3 g4 a4 d4 h3 d5 a2 d6 h4 b5 h2 g5 c3 g6 a3 g7 h3 Qd3 f3 Qe2 f4 Qg2 c4 Qd2 c2 Be2 c3 Qd1 f2 Bd2 f1Q Bc4 c1N Be2 c2 Bh5 f3 Kf5 f2 Kg6 Nf6 Kf7 Qg2 g8B f1B e5 Na6 Bf4 Nb3 Bg6 Ne8 Qf3 Bh6 Nc3 Bc4+ Nd5 Qa5 b6 Nd4 Rf1 a1N Bc1 a2 Qf6 Qe4 Nf3 Nac7 Nh4 Bd2 Kf8 Rh7 Nb4 Ncb5 Bf5+ Be6 Bf7 Bb7 B7g6 Kc8 Bg4 Bd5 B6f5 Rc7 d7+ Kb7 d8B Ned6 Qg6 Kc8 Bf6 Raa7 Bh8 Ra6 Qf6 Raa7 Rhg1 h1B Rg2 Ra8 Rh2 Bf3 Rhh1 h2 Bg7 Bd7 e6 Bb3 e7 Bg8 Bh8 Bde6 e8Q+ Kb7 Rhg1 h1Q Rg2 Ra7 Qef7 Kc8 Rgg1 Nab3 Rg2 a1Q Rh2 Ra6 Ng2 Q1a4 Rh5 Na1 Nh4 Ne2 Q6e7 Raa7 Bc3 Ned4 Qef6 Qa2 Rg1 Q5a3 Re1 Qc4 Nd3 Qab4 Rg1 Ra3 Re1 Qcb3 Rf1 Qa5 Nb4 Qba4 b7+
K3N2q/5rQR/R2B4/2QB3q/1Nnq1bPR/pnp2bb1/n1R1nk2/3r1n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 g4 h5 b3 f5+ Ke5 a5 e4 f3 d3 f4 Na3 f2 Nb5 c3 Ne2 f3 Bb2 c2 Rh3 c1B Nf4 a3 Rh1 a4 Ng6 h3 Na7 a2 Nb5 h2 Qe1 h4 Qd2 h3 Bg2 f1N Qh6 f2 Nd6 Nd2 Ne8 f1N Ne7 Na6 Nc6 Ra7 Nb4 Nf6 Qg7 Bb7 Ba3 Nh5 Bf3 Nhg3 d4+ Kb6 d5 Kc5 d6 Ne2 d7 Nc4+ Ke6 Bf4 e5 Kd4 Bd5 Ke3 Rc1 a1N Rc2 Qb8 d8R c5 Kd7 Kf2 e6 Qe5 e7 Qd4 Ra8 Bg3 Qg8 Bh6 Qg7 Bhf4 Kd8 Bc6 Kc8 Rd7 Ra7 Rf8 Rb7 Rf7 Rb6 Nc7 Kb8 Ba8 Ra6 Nb5+ Nc7 Bc6 e8R Nc3 Rh8 Na2 Rh7 Rd6 Ne8 Bb7 Be6 Bf3 Bd5 Rdd7+ Ka8 Rd6 Rg1 h1Q Rh4 h2 Rh7 Bh4 Rg3 Rdd7 Rh3 Bhg3 R3h4 Rd6 Nc6 Rdd7 b4 Nb3 b5 Rd6 Bb4 a3 b6 Re6 b7 Ne5 b8Q c4 Qa7 c3 R7h6 Nc4 Rh3 Rd6 Be6 Qe3 Qb6 Rd1 Bd5 Qd4 Bd6 Qg2 Nb4 h1Q R3h5 Qgh2 Qc5 Qh4 Rh8 Qg5 Rh3 Qf5 R8h5 Qh7 Rh6 Qh8 Rh7 Qh2 R3h6 Qh4 Rh5 Qg5 Rh3 Qh5 Rh4
3q1BK1/2rbq1bN/4k3/2pN2q1/3nr1qP/b3NQpN/2B4n/1q1Qr1RR b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 a4 f5 d4 g5 h4 c5 e4 b5 e5 b3 a5 g3+ Kf3 b2 a6 g2 d5 g4+ Kf2 f3 Kg3 f4+ Kh2 f2 d6 b4 a7 b3 Qd5 f3 Kg3 c3 Kf4 c2 Kf5 Nf6 Kg6 Bg7 Kf7 Rh7 Be2 f1R Ra6 f2 Nh3 g1Q Nc3 b1Q Bd3 b2 Rb6 Re1 Qf3 f1Q Bh6 c1B Bc2 Qc4+ Nd5 Nc6 Rb5 Qa4 Ne3 Nd4 Rb3 Rb8 a8N Rb4 Nc7 g3 Ra3 Ng4 Ra1 Nh2 Ncd5 Qf2 Rg1 Qe2 Rh1 Qg5 Kg8 Ke6 d7 Qd1 d8Q Bd7 Rg1 Qba2 Rh1 b1Q Rg1 Ba3 Rh1 Bh8+ Bg7 Qe7 Bf8 Bg7 Rg1 Qd2 Rh1 Rc4 Rg1 Qb8 Rc1 Qab1 Rh1 Re2 Rcg1 Re1 Qb6+ Qed6 Nc3 Nb5 Be4 Bc6 Qf2 Bh6 Nc2 Qbd8 Qf3 Rc7 Nd5 Bg7 Bd3 Qh6 Nce3 Qhg5 Qb8 Kd7 Qb6 Nc3 Qb3 Nb5 Qbd1 Rg4 Bg6 Qaf4 Bc2 Nd4 Qc1 Qff5 Qcd1 Re4 e6+ Kc8 e7 Kd7 e8N Qfg4 Nf1 Q6e7 Nfe3 Ke6 Nef6 Bd7 Nh7
1r1N2R1/n5n1/B1pN3r/2N2nK1/1nnq3Q/1rB1R2q/2pkPN1b/Q2b1q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 d4 Kb5 g4 f5 d5 h5 d6 b3 a4+ Kb4 g5 b5 g6 c3 a5 b2 d7 c6 g7 h3 a6 h2 a7 h4 Bg2 h3 Bd2 Nf6 g8Q Rh6 Ra6 Ne8 Qf7 Bd6 Rb6 Na6 Bc1 Rb8 Na3 b1N Nc4 Na3 Kf2 f3 Ke3 f2 a8N f1N+ Kf3 f4 Kg4 f3 Nb2 f2 Qa2 Ne3+ Kf3 f1Q+ Ke4 Bg3 Qd3 Nec4 Nd1 Qdf6 Nf3 Qd4+ Kf5 Be5 Rg1 h1Q Qad2 h2 Bh3 Kb3 Qe1 b4 Rg4 Nb5 Nc7 Na7 Rg8 Ng7+ Kg5 Bd6 d8N Bf5 Qe3 Kc2 Qf4 b3 Nd2 b2 Ne4 b1R Rb3 Nb4 Nc5 Qhg2+ Qg4 h1N Nf2 Bh2 Ne8 Ng3 Qh4 Bd3 Be6 Qh3 Bc8 N3f5 Nd6 Be4 Ba3 Rb2 Qb1+ Kd2 Ba6 Bc2 Qa2 Bd1 Qa1 c2 Re3 Rb3 Bc1+ Ke1 Bb2 Kd2 Bc3+
R2KQb1B/1b5q/npr2Q2/1kn2NqB/1R6/rr3QPq/3p1qq1/4NQ1b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 Kd7 Kg4 Kc6+ Kh5 f5 a4 h3 c4 f3 e4 b6 c5 h2 g3 d3 a5 f4 e5 d4 e6 b3 e7 b2 Kg5 h5 a6 d2 a7 f2 Qe1 d1Q Bd2 f3 Be3 h4 Bf4 d3 Na3 b1R Be2 f1Q Be5 d2 Nb5 h3 Nd6 f2 Nf3 Rb3 Nf5 Rh6 Bh8 Qg2 Qf1 Qc2 Ne1 Nf6 Bh5 Bb7 e8Q+ Nfd7+ Qe7 Re6 Qf6 Na6 Kg6 Qd3 Kf7 Kb5 c6 Ndc5 c7 Rc6 c8Q Qe2 Rg1 h1B Ra4 h2 Rc4 Qef3 Qb8 Qdd5+ Ke8 Qg8 Kd8 Qg5 Qd3 f1Q Qe2 Q1f2 Qf1 Qe4 Qc8 Rb8 a8Q Qeg4 Ng7 Q4h3 Nf5 Nb4 Qa3 Ra8 Qb8 Ra5 Qe5 Na6 Qe8 Rb2 Qf3 Ra3 Bg6 Qh7 Bf7 Qgh3 Bh5 Rbb3 Rg2 Qg1 Re2 Qf2 Re5 Bg2 Re7 h1Q Rc7 Qhg1 Rc8 Bh1 Ra8 Qgg2 Rb4+
bb2nQnr/QN1KQ1rn/1p4n1/2q5/2nR1Bp1/3Q1P2/N1rb2B1/2kqR3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Ke6 a4 Kf5 h4 d5 a5 g5 h5 e5 f3 d3+ Ke3 b6 a6 d4+ Kf2 b3 Kg3 b2 a7 d2 h6 e3 h7 e4 c5 e2 c6 e1B+ Kg2 Kf4 c7 Ke3 Ra4 g3 Nh3 d3 Rd4 g4 Rd7 Qe7 Nc3 b1R Nf2 Rb2 Na4 Na6 Qc2 Qc5 Rh2 Bd6 Rg7 Bb7 c8Q Nc7 Qb8 Ne8 Qc3 Rc2 Qc8 Bb8 Qc7 Bd5 Rd7 Bc6 Ba3 d1N Rh1 Nb2 Rd4 Nc4 Qe7 Bd2 Bc1 Bb7 Qa3 Bd5 Nc3 Bb7 Kg1 g2 Na2 Bd5 Qd6 Bc6 Kh2 g1N Kg3 Nh3 Bg2 Ng5 Kh4 Ke2 Qe7 e3 Ne4 Bb7 Nd6 Bd5 Rh2 Kd1 Nb7 e2 Rh1+ e1N Kh5 Bc6 Kg6 Bd5 Bf1 Ng2 Kf5 Nf4 Bg2+ Be1 Be3 d2 Qd3 Ng6 Bf4 Qd6 Nb4 Kc1 Rf1 Qc5 Na2+ Kb1 Rg1 d1Q Rh1 Bd2 Rg1 Ngf6 Re1 Rg8 h8Q Rg7 Qg8 Ngh7 Qgf8 Be4+ Ke6 Ng8 Nb4 Kc1 Kd7 Be5 Rh1 Rc8 a8Q Bb8 Qa7 Bd5 Nd6 Ba8 Nb7 Rd8+ Ke6 Rd5 Re1 Rh5 Kd7 Ng5 Qff7 Rh8 Qff8 Nh7 Na2+
B1K2k1b/r2n1p1B/3R1q1n/1N1qbq2/1QQ4p/Q6b/r4P1r/1qq1NR1Q b - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 h4 axb4 h5 e5 d5 g6 Be3 gxh5 Bc5 h4 Bd4 exd4 Kd2 h5 e4 c5 g4 b5 a4 b3 d6 c3+ Kd3 b2 g5 b4 Kc4 c2 Kd5 c1B g6 b3 d7+ Ke7 g7 d3 e5 d2 e6 c4 a5 h3 a6 h4 a7 h2 Na3 b1Q Bd3 c3 Nf3 c2 Rf1 h1R Nb5 b2 Ne1 Nh6 g8Q Rh2 Qgg4 Bg7 Qc4 Be5 Ra6 Kf8 Bh7 Qf6 Rd6 Rg8 Qf3 d1Q+ Qfd3 Bd2 Qa3 c1Q Qcb4 Qbf5 d8Q+ Kg7 e7 b1Q e8B Kf8 Qc7 Nd7 Qcc4 Bdc3+ Kc6 Qd5+ Kc7 Rg4 Qd3 Re4 Qdd4 Re2 Qdc4 Nc5 Bc6 Ra2 Bb7 Nd7 Bc6 Rb8 a8Q Ba1 Q8a4 Ra8 Qd1 Ra7+ Bb7 Qe7 Qdf3 Bh8 Qh1 Qef6 Qba4 Be5 Q4b4 Nc5 Kb8 Be6 Ba8 Nd7+ Kc8 Qff4 Qg2 Bh3 Qgf3 Q4f5 Qh1
3n1BRQ/QBq1p3/qqb3nN/Nr2b1rP/nbK5/p1Q3k1/2Q5/1n1Rn3 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Ke6 c4 Ke5 b4 d5 h5 a5 f3 g5 c5 e3 Kd3 Kf4 c6 a3 b5 g3 c7 g2 b6 a4 b7 g4 Qe1 g3 Qe2 a2 Nc3 Bd7 c8Q Nc6 b8Q+ Ne5+ Kc2 d3+ Kb2 d4 Rh3 d2 Qbc7 d1N+ Ka3 d3 Kb4 d2 Qf2 e2 Qfa7 e1N Qab8 Nb2 Rh1 Nh6 Rh2 Bc6 Qba7 Nf7 Nb5 Rg8 Na3 Rg5 Ba6 Rb8+ Bb7 Bg7 Nc4 a3 Rb1 a1Q Na5 Na4 Bb2 Qd3 Rd1 Qc1 Qh8 Nd8 Ne2+ Kf5 f4 Kg4 f5 g1Q f6 g2 f7 Ng6 f8Q Qa6 Bc3 Be5 Nd4 Kg3 Qff6 Qf2 Qf5 g1B Qc2 Qf6 Rh1 Qb6+ Kc4 Qd6 Ne6 Bc5 Ng7 Bb4 Qc8 Qdc7 Rf1 Qb2 Rf8 Qa1 Rg8 Qb1 Rc1 d1N Bb2 Ndc3 Rd1 Qc1 Ba1 Nb1 Nf5+ Kg4 Nh6+ Kg3 Bb2 Qd2 Ba1 Qdd6 Bd4 Bf4 Bg7 Be5 Bf8 Qa6+ Kb3 Qd4 Ba8 Rb5 Bb7 Qg1 Kc4 Qf2 Qd7 Qg1 Qdd2 Qgb6 Qdc3+
rN3qbb/Q1qp4/N5B1/R2nk2r/1br2r2/nP1QR1Kp/1q2B2B/2B2r2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 Kf7 f4 Ke6 Kf2 a5 c4 h5 f5+ Ke5 c5 h3 c6 d3 g5 h4 b3 d2 c7 a3 f6 a4 f7 e3+ Kf3 h2 g6 a2 g7 a3 Ba6 e2 Kg2 e1Q Qc2 d1R Ne2 h3+ Kf3 Rh5 Nf4 Qa5 Qg6 Rf1+ Kg3 Nf6 g8Q Bb7 c8B Nd5 Be3 Qac7 Nc3 Nc6 Nfe2 Ncb4 Rd1 a1Q Bd3 a2 Nb5 Nc2 Re1 Na3 Bc1 Rf4 Rhg1 Bc6 Ba6 h1R Q8h7 Bb7 Qb6 Qb2 Qa7 a1B Bg6 e6 Rg2 Bb4 f8B Rhf1 Bc5 Bc6 Bg1 Qf8 Bh2 Rc4 Rg1 Rff4 Ned4+ Kf6 Nd6 e5 N6b5 e4 Re3 Ke5 Rg2 Qb1 Ra2 Qb2 Nd6 Bb5 Nb7 Bc6 Nc5 Bb5 Rd3 e3 Rc3 e2 Re3+ Kd6 Nc6 e1R Nb8 Ref1 Rd3 Bc6 Bb5 Ke5 Nca6 Nf6 Rf3 Bd5 Rd3 Bg8 Re3+ Rce4 Be2 Nd5 Rc3 Rc4 Rd3 Nb1 Ra5 Na3 Re3+ Kd6 Bd2 Qc2 Be8 Bh8 Qd3 Qa2 Bc1 Qb2 Rf3 Ke6 Bg6 Ke5 Re3+
3N1Q2/2p2P2/rQnnrb1p/NqnB2n1/3n3b/r1k3B1/RQqRb3/4KQ2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Ke6 d4 Kd5 a4 e5 a5 b5 g5 c3 g6 b3 g7 c2 f5 b4 f6 h3 a6 e3 f7 h2 a7 h6 Ra6 b2 Bd3 e2 Rf6 b3 Rb6 e4 Bd2 c1N Rf6 Bg4 Bc2 Kc4 d5 Na6 d6 Be7 d7 Qe8 d8Q Nc5 Rf3 Bf6 Rd3 Ne7 g8Q Qb5 Ba5 Nc6 Kd2 e1N Qb8 Be2 Qg6 Re8 Nc3 b1Q Na4 b2 Nh3 Re6 Nf4 Qa2 Rf1 h1N Rf2 b1R Bc3 Ra1 Be5 Ng3 Nb6+ Kb4 Nc4 Nf5 Na5 Nd6 Ra3 Qb2 Ra2 Qb1 Bb3 Qc2+ Ke3 Nf3 Bd5 N1b3 Qf1 Nbd4 Rh2 Na6 Kf2 Nc5 Qgg2 Ng5 Qb6 Rd8 a8Q Kc3 Qc8 Rg8 Qf8 Rg6 Qd1 e3+ Ke1 Qf5 Rd2 Qc2 Qf1 Ra3 Qb1 Qf5 Ra2 Qc2 Rf2 Bg4 Rd2 e2 Ng2 Bh5 Bg3 Bf3 Nf4 Bh5 Kf2 e1B+ Kg2 Re3 Qd8 Nb4 Ne6 Ne8 Bh2 Bg7 Qa7 Bh4 Bg3 Be2 Kf2 Re5 Qe7 Re3 Nd8 Ra6 Qd6 Nbc6 Qf8 Re6 Ke1 Nd6 Qb6 Bf6 Qb2+
3kqb2/p4NQB/qn6/3r2rR/1Nnp1rrb/1Q1b1N1K/1q1P4/1BRr1N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 f5 c5 b5 e6 Ba3 exf5 Bb4 cxb4 Rh2 f4 Rh3 Ke7 Rh1 Ke8 Kf2 d5 g4 f5 Kg2 h5 e4 h3+ Kh2 b3 c4 a3 b6 a2 b7 h4 c5 b2 g5 f3 g6 f4 e5 f2 e6 f3 c6 Ne7 g7 Nf5 g8Q Nd7 b8N Ba6 e7 Ne3 c7 Nb6 c8N Rh5 Qe6 Rg5 Qg8 Nec4 Be2 f1Q Na3 b1Q Qe6 f2 Qe3 Qb2 Rb1 a1B Bf3 Qe2 Nc6 f1R+ Bg2 Rf4 Qd4 Kd7 Qc3 Qe8 Nd6 Rd8 Nf3 Rgg4 Nb4 Qd3 Kg1 h2+ Kf2 h3 Nf7 Qg6 Qdb3 Kc7 Rhc1 h1R Nac2 h2 Ne3 Rg1 Nf1 h1R Qg7 Qd3 Bh3 Rg5 Bd7 R1g4 Bf5 Rd6 Bh7 Rd7 Ng3 Rd1 Kg2 Bb5 Kh3 Rd8 Qc2 Qda3 Qcc3 Qa6 Nf1 Qba2 Qa3 Bd4 Ng3 Re1 Qb3 Qb2 Kh2 Bf2 Rd1 d4 Rbc1 Bc6 Kg2 Be4 Kh2 Re2 Rh1 Re1 Nf1 Bg3+ Kg2 Rd1 Rh5 Rdd5 Kh3 Bh4 Nh6 Qc6 e8B+ Kd8 Beg6 Qe8 Bf5 Bd3 Bfg6 Be2 Bb1 Bd3 Nf7+
B7/1Q1bnN1R/2N5/N2nBqk1/2b1b1n1/b1br1PRK/1p3p1Q/3rN1bb b - - 0 1 illegal: No proof kernel
r2qb1r1/4P1r1/2nb2b1/5p1p/1QR1B1k1/bb1K2B1/bB1N2NR/BnQ1b3 b - - 0 1 illegal: No proof kernel
K1b5/1R6/2qnR1Bn/2q1P2b/1Nqp1p1b/Q1B2rrN/rR3Qb1/1n1k2R1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 h5 e4+ f3 a4 b5 a5 f5 e5 f4 a6 d3 a7 d2 g3 b3 c5 b4 c6 b2 c7 h3 Bc4 h2 Qe1 d1B Ra3 h4 Rb3 h3 Nc3 b1R Ne4 f2 Rb2 f1Q Qc3 b3 Rd2 b2 Bd3 Qe7 Qa3 Nh6 Nc3 Rg8 Na2 Na6 Bg6 Nc5 Nb4 Ne4 Rc2 d6 Kc6 d5 Bd2 d4 Be1 Nd6 Qe3 Qe2 Qf2 Qc4+ Kb6 Ra1 Re2 b1N Rb2 Qd3 Kc6 Ra2 Kb6 Rg7 Kc6 Rb8 a8Q Rg8 Qa5 Qc4+ Qc5 Rba8 Kb6 R8a7 Qa5 Ra8 Qa3 Rb8+ Ka7 Be2 Nd3 Rb3 Nb4 Rf3 Ka8 Bg7 Bd3 Bf6 Bg6 Bd7+ c8R Bh4 Rd8 Bc8 Re8 Qec7 Re7 Q7c5 Rb7 Bd1 Ne2 Rg7 Rf1 h1Q Ng1 h2 Nh3 Qg2 Rg1 h1B Be8 Kf5 g4+ Ke4 g5 Be2 g6 Rg8 g7 Qg6 Rg3 Bg2 Bf7 Qge6 Rg6 Qed5 Qg3 Qdc6 Re6 Bd1 Bc3 Ke3 Bg6 Be2 Qh2 Bd1 Bd2+ Ke2 Be1+ Bc2 Qg3 Kd1 Qf2 Bf5 Rc2 Bg4 Rb2 Re8 g8R Bh5 Bf7 Rd8 Rg4 Rg8 Bg6 Bf1 Rg1 Bg2 Bf7 Rg5 Bg6 Rgg3 Bc3+
Qn1B1R1q/2R3q1/rNr3n1/1Qp2bb1/r3qPq1/1Bbn4/NpQ3Q1/1k4K1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 d4 Kf7 g4 Kg6 a4 b5 f4 e5 Kf2 h5 g5 Kf5 d5 h3 d6 c3 g6 b3 g7 b4 d7 h4 a5 h2 a6 h3 a7 b2 Bc4 b3 Ra2 e3+ Kf1 Ke4 Bd2 c2 Qg4 c1R+ Qd1 e2+ Kf2 e1B+ Kf1 Be7 Ra4 Bg5 Na3 b1Q Ra5 b2 Bf7 Kd3 Be6 e4 Bf7 e3 Ba2 Rc6 Qa4 Ne7 g8Q Rhh6 Nb5 Ng6 Nc3 Qd1 Rf5 Qf6 Nd5 Qg4 d8Q Qg7 Rf8 Bf5 Ba5 Bc3 Qb5+ Kc2 Bb3+ Kb1 Nb6 e2+ Kf2 e1N Qc8 Nd3+ Kf1 Bd4 Ne2 Bc3 Rg1 h1Q Nc1 h2 Na2 Qd5 Rg2 Qde5 Rc2 Qh8 Qgd5 Qeg7 Qg2 h1Q+ Qg1 Qe4 Qg2 Rc4 Kg1 c6 Nd7 Ra4 Bd8 Ba5 Rc5 Bc3 Nb6 Ra6 Rd5 Ra4 Rd7 c5 Rc7 Na6 Qe6 Rc8 a8Q Nb8 Rb7 Rc6 Qec4 Nge5 Rc7 Rhf6 Qd4 Ng6 Qf2 Rfd6 Nc8 Rca6 Nb6 Rc6 Qc2+
1r1b4/K1b1Q1q1/N3Qn1n/pr6/2R2rB1/R1pRB1Pq/R3nnkN/2q2b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 d4 Kd6 b4 Kd5 b5 Ke4 g3 f5 b6 c5 e3 a5 d5 h5 b7 h3 d6 f3 d7 h2 Qd2 c3 Ba6 a3 Ne2 h4 Bb2 c2 Qd1 c1N Ra2 c4 Qa4 h3 Qb5 f4 Bg7 Qc7 d8Q Be7 Qb6 Nh6 Ng1 Nd7 b8R Ne2 Bd4 Nf6 Qe6+ Qe5 Qdd7 Bd8 Rb4 Rb8 Qde7 Rb5 Ra4 Bd7 Bc8 Bc6 Bc5 Bb7 Bd7 Ba6 Bb6 Bc7 Bd4 Rhb8 Nd2+ Kd3 Nb3 Ke4 Rc2 a2 Ra3 a1B Rca2 Bc3 Bc5 Bb4 Bc8 c3 Ba7 Kd3 e4 Bbd6 Bc5 Bd8 Be3 B6c7 Bd7 Qg5 e5 Ke4 Bc1 Qg7 Nc5+ Kd4 Bd2 Bb7 Na6 Ke4 Be3 Bd5 Q6f7 Bc4 Bg4 Bd3 e6 Bc4 Kf1 f2 Nf3 Bd3 Rg1 h1N Qfe8 h2 Kg2 Bc4 Rd1 f1R Rd3 Nf2 Q8d7 Rfb1 Qde8 R1b4 Kf1 Ng1 Ke1 h1Q Nh2 f3 Q8d7 Nfh3 Kd1 f2 Kc2 f1Q Qde8 Rc5 Qg8 Bb5 Qgf7 Rbc4 Kb3 Ne2 Qg8 Rd4 Qge8 Bc4+ Ka4 Nf2 Q8d7 Re5 Qdd6 Qc1 Qb6 Bd5+ Kb5 Bc4+ Kc6 Qg2 Qb3 Qh3 Qb6 Ra8 Kb7 Rb8+ Ka7 Bb5 Qb4 Rf5 e7 Rf4 Q4c5 Rd5 e8R+ Re5 Re6 Bc4 Rc6 Rd5 Be6 Rh5 Qe7 Rb5 Nf1 Kf3 Nh2+ Kg2 Bg4 Bd6 Rc8 B6c7 Qbe6 Nd4 Rdd2 Bf1 Rd1 Ne2 Rd3 Bd6 Rc5 B6c7 Rc4
2qq2Br/K1n1BQ1n/2k1qp2/P1BQr3/1n3pb1/1Rb5/r1bb1R2/N3NB2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 h4 d5 c4 Kd7 e4 b3 h5 b2 e5 g3+ Kf3 g4+ Ke2 g2 Kd3 b4 c5 g3 h6 b3 h7 Nc6 Rh4 Nb4+ Kd2 d3 Kc3 d4+ Kc4 d2 Kb5 d3 Qe1 d1R Na3 b1Q Rg4 b2 Nf3 g1Q Ra2 g2 Qe4 d2 Nc2 Nf6 Rg3 Bg7 Na1 Qc2 Ne1 b1N Rb3 Qe3 Ba3 g1B c6+ Kc7 Qd4 Bg4 e6 Nc3+ Kc5 Rb1 e7 d1B e8Q Qe6 a5 Rb2 Qg8 Be3 Qf8 Bd2 Qd5 Qcf5 Qe8 Bc2 Qf8 Rg8 h8B Nh7 Qe8 Be5 Bf6 Rh8 Be7 f6 Qh5 Nb5 Qf7 Kc8 c7 Bec3 Qe5 Kb7 c8B+ Ka7 Qd5 Nc7 Bca6 Re8 Bac4 Qec8 Bd6 Re5 Be7 Kb8 Kb6 Qfe6+ Qd6 Nc6 Bc5 Nb4 Raa3 Ra2 Rb2 Qcd7 Rab3 Kc8 Bd5 Rb8+ Ka7 Q7e8 Qb6 Kd7 Qb7 Qc8 Bdc4 Qed8 Qd5+ Qd6 Qg7 Bcd1 Qf3 Be3 Bce2 Qh8 Rb1 Qcf8 Qh3 Kc6 R1b2 Rc8 Rd2 Bc2 Bc4 Qe8 Bf7 Qe6 Rf2 Bed2 Qd3 Rd8 Qc4 Q8d7 Qd4 Qc8 Qg6 Qe8 Qg7 Qe8d7 Qd3 Rh8 Bg8 Qdd5 Qf7 Qdd8 Qd5+
1r1b2N1/K1QBN3/pp2nQnq/kP3r2/2qB1r2/5B1b/b1RnRn1B/6q1 b - - 0 1 legal: proof: f4 e5 d4 exf4 a4 h5 g4 hxg4 a5 c5 a6 cxd4 Qd3 Qa5+ Qd2 Qxa6 Qd1 Qa2 Kd2 Kd8 Kd3 Kc7 e4 Kb6 c4 d5 h4 g5 b4 f5 b5 g3 e5 a6 h5 g4 c5+ Ka5 c6 f3 c7 f2 h6 b6 h7 f4 e6 f3 e7 g2 e8B g3 Ba3 Nc6 Be7 Bh3 c8Q Rb8 Qc1 Nd8 Q8c6 Ne6 Bc5 Ne7 Qc7 Ng6 Rh2 Be7 Ne2 g1Q Nf4 g2 Nd2 Rf8 h8B Qh1 Qb2 g1Q Bd6 Rf5 Bg2 f1N Ne4 f2 Nf6 Nd2 Ng8 f1R Bd7 Bd8 Re1 Qa4 Re2 Qb4 Nh5 R1f4 Nhf6 Qa4 Ne7 Qa2 Kc2 d3+ Kc3 Qa4 Qa1 Qa2 Bf3 Qa4 Qf1 d4+ Kb2 Qc4 Nfg8 Bg4 Rhf2 Qh6 Ka3 Bh3 Bf6 Rh4 Bh2 Rhf4 Qa1 Nb3 Rc2 d2 Re2 d3 Bd4 d1N Ka2 Nf2 Kb2+ Qa4 Kc3 d2 Qb2 Qa2 Kc4 d1B Qa1 Ne5+ Kd5 Ng6+ Kc6 Nd2 Rb2 Bb3 Rc2 Qa4 Qf1 Ba2 Qa1 Ra8 Kb7 Rb8+ Ka7 Qc4 Qc3+ Qb4 Q3c6 Qc4 Q6d6 Nef8 Qe5 Ne6 Qf6
bK3bR1/1Q2p3/3Q1Bqr/b1n2Rrr/qq3NBN/2n3b1/p2nP2Q/3k1Q2 b - - 0 1 legal: proof: g4 c5 h4 b5 a4 bxa4 d4 cxd4 g5 f6 Rh3 fxg5 Rh2 gxh4 Rh1 h3 Kd2 Kf7 Kd3 Kg6 Ke4 h5 Ke5 d5 c4 a5 f4 a3 b4 a2 b5 a4 b6 d3 c5 d4 b7 h2 c6 h4 c7 h3 Qd2 a3 Bb2 Qd6+ Ke4 Rh6 Nc3 Nf6+ Kf3 Kf5 Nd5 g5 Nb6 g4+ Kg3 Ke4 Qc2 Ke3 Qc6 Kd2 Qa4 Na6 b8Q Qb4 f5 Nc5 Kf4 g3 Ke5 g2 Qba7 Bb7 c8Q Nfe4 Rb1 a1B f6 a2 Qab8 Ra5 f7 Ba8 Qac6 Rb5 Ba3 Bc3 Qcd6 Kc2 Qbb7 d2 Nd5 d1N Qcc7 Nd2 Nf3 g1B Nf4 d3+ Kd5 Bf2 Kc6 Bg3 Rg1 h1R Bb2 h2 Nh4 Ra5 Rg2 Rg1 Qb8 h1Q Kc7 Rb5 Rf2 Qhe4 Bh3 Qg6 Bg4 Rh1 Nf5 R1h5 Nh4 Bh8 Bd4 Nc3 Rg1 Bf6 Rgg2 Kd1 Kc8 Bg5 Bf6 Ra5 Nh3 Be3 Rf5 Bd4 Nf4 Be5 Qe6 Bc7 Qd6 Bb6 Q8c7 Rb5 Kb8 Ba5 Rg1+ Be1 Rd5 Ncb3 Qa6 Qh7 Bh8 Ndb1 Nfg6 d2 Rd7 Kc2 Qh2 d1Q Bh3 Bg7 f8Q N1d2 Qf1 Bf8 Nf4 Qf7 Rg4 Bg3 Rg8 Rbg5 Bg4 Nc5 Rd5 Qg6 Rf5 Kc1 Qe6 Kc2 Bf6 Kc1 Qfg2 Qda4 Qd6 Kd1 Qf1+
k3Q1qb/BPB1r2q/1Rr2R2/qn3b1Q/1n1B1bb1/N2n4/2N1p1p1/1K1B1r2 b - - 0 1 illegal: No possible last move
2k2Q1b/1N5r/1bb1NN1n/B2q3n/1pnp1RN1/3b1Prr/R7/1b1QKB1b b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 h5 c4 d5 a4 Kd7 a5 e5 a6 b5 g5 b3 c5 d3 g6 b4 a7 d2+ Ke2 b2 g7 h3 Na3 b1B Ra2 e3 Bg2 e4 Nb5 h4 Kf1 h2 Qe2 d1N Qc4 e2+ Ke1 h3 Ra5 Ne3 Qa2 Nh6 g8Q Bg7 Qa4 Ba6 c6+ Kc8 c7 Nc4 Be3 Rh7 Bf1 Bh8 Qc2 Nd7 Qf8 Nf6 Nf3 Nh5 Bb6 d4 Rg1 h1B Qd1 h2 Rg4 Bg2 Ne5 h1B Nc3 Bf3 Qc5 Qd5 Ra2 Rb8 Ba5 Rb6 a8N Rg6 Rh4 Rg3 Rg4 Bb5 Rf4 Bc6 Nd7 Bg4 f3 Bf5 Nf6 Bg6 Kf2 e1B+ Ke2 e3 Nce4 Rh3 Ng4 Bh4 Qf8+ Bd8 Ke1 e2 Nef6 Rg3 Qc2 Bd3 Qd1 Kb7 c8N Bb6 Nc7 Kb8 Kf2 e1R Nd6+ Re8 Nb7 Kc8 Ne6 Rh3 Qe7 Rg8 Ke1 Rg6 Ne5 Rg1 Neg4 Rgg3 Qf8+
2b2B2/1p4k1/r1b1q1nR/2QQn2K/3r2pb/3rbnNB/P1b4N/QQ1bR3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 h4 f5 e4 Kf7 c4 g5 e5 d3 c5 d4 h5 b3 h6 g3+ Kf3 d2 c6 g2 h7 d3 e6+ Kg7 c7 b2 e7 g4+ Kf2 f3 Kg3 f4+ Kh4 f2 Nh3 g1B Qc2 d1B Be2 f1B Qd2 f3 Kh5 f2 e8Q Be7 Qa5 d2 Qb4 Qd6 Bc4 Ra6 Nc3 b1B Ne2 Qe6 Qeb5 Nc6 Ba3 Bbc2 Qd5 Ne5 Ng5 Bg2 Qb1 f1N Ng3 Be3 Nf3 Nh2 Bf1 Bh4 Bd6 Ne7 Ba3 Rd8 h8Q+ Kf7 Bd6 N7g6 Bf8 Bd7 Qf6+ Kg8 c8Q Kh7 Ne1 Nhf3 Qcc5 Bc8 Rh2 Bh1 Bh3 Rdd6 Qdb3 Rd4 Qbd5 Bg2 Rh1 Be2 Rh2 d1R Rh1 R1d3 Rh2 Ng5 Nf3 Bed1 Rh1 Kg8 Nh2 Ngf3 Qb2 Be2 Rae1 Bed1 Qa1 Kh7 Qfd8 Kg8 Qdb6 Kh7 Be7 Kg7 Qbb1 Ng5 Bd6 Be4 Be7 Ngf3 Bf8+ Kh7 Bf1 Nd2 Qd7+ Kh8 Nf3 Bc6 Qdd5 Bf6 Bg2 Bg1 Kh6 Kg8 Rh5 Bh4 Nh2 Ndf3 Bf1 Kf7 Bh3 Be3+ Rg5 Ne7+ Kh5 Kf6 Rg8 N7g6 Rh8 Kf7 Rh6 Kf6 Be7+ Kg7 Bf8+
1rrk1N1B/1B1r2r1/1r5q/2p2n2/1B1r2Q1/QRp1b2b/1n2qRrP/N5BK b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 d4 e5 f4 g5 Kf2 c5 Kg2 b5 a4 c3 f5 g3 f6 e3 a5 e2 d5 e1Q a6 e4 d6 g4 a7 b3 Nf3 b4 Ng5 b2 Kg1 e3 Qd3 g2 Nh7 e2 Ra2 b3 Na3 b1R Rd2 b2 Qb5+ Nd7 Rd1 Nh6 Qb3 Qb6 Nc2 Ne5 Rd5 Nc4 Rd2 Rb8 a8Q Qd1 Qaa2 e1R Qaa3 Re7 f7+ Kd7 Kf2 g1R Na1 Qa6 Be2 g3+ Kf3 g2 Qbb4 Bg7 f8B Bd4 Bg7 Ke8 Rc2 Bh3 Be3 Nf5 Rd2 Rf7 d7+ Ke7 Kf2 Qh6 Bf3 Rhc8 Bb7 Kd8 Bh8 Qc2 Kf3 Rbd1 Nf8 b1R Bf2 Be3 Re2 Ke7 d8B+ Ke8 Bb6 Rfd7 Ba5 Rb2 Qba4 Rb6 Q4b4 Qa2 Rb2 R1d3 Rb3 Kd8 Qba4 Rd2 Q4b4 Rgd1 Rf1 g1R Qba4 Rg5 Bg1 Rgg7 Q4b4 Qc2 Qba4 Nb2 Qg4 R2d4 Bb4 R1d2 Qf4 Rdg2 Rf2 R2g5 Qe4 Bg4+ Kg2 Bh3+ Kh1 Rg2 Qf4 Qe2 Qg4
nr2B1B1/1bBk2R1/7n/Knb1bq2/QnP2p2/B3Q1p1/nN1Nb1R1/2br4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 b4 d5 h4 a5 c4 f5 e4 g3 b5 g2 h5 f3 b6 a3 e5 g4 h6 f2 e6 a4 b7 a2 e7 a3 h7 f4 Qb3 g3 Qb5+ Qd7 Rh4 d3 Kc3 d4+ Kb4 d2 Rh6 d1N Qa4 d3 Nf3 g1B Nh4 d2 Re6 Nh6 Re5 Nc3 Nf5 d1N Ra5 Nb5 Nc3 Na6+ Kb3 Nac7 Kb4 Rb8 Ne4 Ndc3 Nd2 Na8 Bd3 f1B Ra7 Be3 Ka5 Be2 Rb1 a1B Rb2 Bc5 Ne3 a2 Nd1 Qf5 Rc2 Rg8 h8Q Kd7 Qe5 Bg7 Bb2 Rd8 Qe3 Be5 Ba3 Bb2 Be4 a1N Bd5 Bc1 Nb2 Na2 e8B+ Kc7 Bg8 Rd4 Rc3 Nc2 Rd3 Ncb4 Rb3 Be6 Rc3 Bd5 Rc2 Rc8 b8B+ Kd8 Qg1 Bb7 Bc7+ Ke7 Qe3 Rb8 Ne4 Rd1 Rd2 Bg4 Rg2 Be2 Nd2 Bc8 Bb6+ Kd6 Rg7 Bb7 Bef7 Kc6 Bc7 Kd7 Be8+
B4Q2/n1Q1q1k1/bQ1NQ3/p4r1R/1br4R/p1b2r2/3bKNnP/Bn3rb1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 c4 Kf7 f4 e5 b4 a5 b5 d5 b6 g5 c5 e3 f5 e2 c6 e4 f6 g3 c7 d3 b7 d4 Ra2 a3 Rd2 g2 Nc3 g4 Bb2 g3 Qb1 Ne7 Nd5 Rh4 Qd1 Ng6 Qc1 Qe7 Nh3 g1R Rd1 g2 Qg5 d2+ Kf2 e1B+ Ke2 e3 Ndf4 d3+ Kf3 e2 Bc3 Nc6 b8Q Ba6 c8Q Na7 Nd5 Rc4 Qh6 Nf4 Ba1 Bg7 Rb1 d1N Nb6 d2 Nf2 Nc3 Qcc7 d1R Rb4 Nb1 Nc8 Rd5 Qbb6 Rf5 Nd6+ Kf8 f7 Bd2 Qe6 e1B Be2 Rf1 Rg1 Bgc3 Bd3 Rb8 Be4 Kg7 Ba8 Rf8 Rb5 Ng6+ Ke2 Nh4 Rc5 Rf3 Rh5 Rf5 Nh1 R1f3 Rf1 g1B Nf2 Ng2 Rh4 Be5 Rh5 Bb4 Rh4 B5c3 Rh5 Bd2 Rd1 Bf4 Rd4 Bfd2 Rdh4 Rd8 Nde4 Rdd4 Nd6 Rdf4 Nd1 Rf1 Nf2 Rf3 f8Q+
1R2r3/N1nKb2r/n5P1/1n5r/3pp3/qR1rN1QB/bB1rQnb1/2kB3B b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 h5 c5 b5 c6 d5 g3 e5 a5 e3 Kf3 b3 a6 h3 a7 d3 c7 b2 Ra6 d2 Be2 h2 Nh3 b4 Qf1 d1R Rb6 b3 Ba6 e2 Qg2 e1R Qf2 h4 Qe2 d4 Rb5 Nf6 Ra5 Rd2 Nf2 h3 Rb5 Nd5 Nd1 Qd6 Na3 b1B Bb2 Rh7 Rb6 Qc5 Nb5 Qa3 Rf1 Bd7 c8B h1R Rb7 h2 g4+ Ke6 g5 Kf5 g6 Ba2 Rg1 Be7 Rg3 Nc7 Rh3 Rh5 Kg3 Ref1 Ne3+ Ke4 f5 Rfd1 Kg4 Bc6 f6 Rd3 f7 R1d2 f8Q Bd5 Bc1 b2 Qff2 b1N Bb2 Nc3 Qg3 Bc6 Rb6 Rh7 Bab7 Nba6 Bd7 Rf8 a8B Re8 Na7 N3b5 Bbc8 Rb1 Rb7 h1N Rb8 Rf1 Be6 Rf5 Bb3 Rfh5 Bd1 Rb3 Qeg2+ Kd3 Q2f2 Bg2 Bc6 Bg5 Kf5 Rc3 Bcf3 e4 Qe1 Nf2 Bd7 Bf1 Bh1 Bg2 Be6 Rb3 Ke5 Be7+ Bf5 Nd5 Ke6 Ndc7+ Kd7 Qa5 Qf4 Qa3 Ng4+ Kc4 Qe2+ Kb4 Rc3 Ka4 Ne3 Kb4 Rc2 Rbd3 Bh3 Kb3 Qh2 Bb1 Rc3+ Ka2 Bc1 Ka1 Qf4 Ba2 Bb2+ Kb1 Qff3 Qc5 Rb3 Qa3 Bc3+ Kc1 Qg3 R7h6 Ba1 Rh7 Bb2+
b4B2/3rb3/6p1/NN2nB1p/KNNP2nQ/2q2k1b/b1nr1Q1R/b1bq3R b - - 0 1 illegal: No proof kernel
3B3b/qb6/2NNPQKQ/rR1n2pr/1p1r2B1/4qq1r/k1RrR1n1/3r1R2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 d5 a4 b5 h5 g5 a5 f5 h6 f3 Kg3 f2 a6 f4+ Kg2 f3+ Kg3 b3 h7 Kb4 a7 d3 e5 d2 e6 d4 c5 d3 c6 b2 c7 Qe7 Ra6 Bb7 c8R Nd7 Ra3 Ndf6 Rcc3 Nh5+ Kh2 g3+ Kh3 g2 Kg4 Nf4 Kf5 Nf6 Rh3 Bg7 Rc7 N6d5 Be2 f1R Rh1 f2 Nc3 b1R Ra5 Rb2 Nf3 g1Q Nd4 Ng2 Ne4 Bf6 Qc2 d1R Bf4 d2 Nd6 Rfe1 Rh2 f1Q Kg6 Qe3 Bg4 Qff3 Qf5 Rh1 Nc6+ Kb3 Bg3 b4 Rb5 Bg7 Qf6 Ka2 Be5 Rc2 Bd4 Rc4 Bb6 Rd4 Rc8 Qd7 Bd8 Qe7 Rh4 Rh3 Rh5 Rf8 h8Q Qc7 Qh7 Bh8 Qh6 Rdh1 Rh4 d1R Rh5 Rf7 Rh4 Rd7 Rh5 Rb8 a8R+ Qa5 Ra6 Ra8 Rc7 Qaa3 Ra4 Ra5 Rh4 Rg3 Rh2 R1d2 Rc8 Rhd1 Rh1 Rh7 Rf1 Rh3 Qhf8 R7h5 Qh6 Kb2 Rc7 Qa2 Ra3 Qa1 Rc3 Ka2 Rd3 Qg1 Re3 Qc3 Re2 Qge3 Ne5 Qc5 Rc6 Qa7 Rc2+ Kb1 Nc6 Ka1 Rc4 Ka2 Rc2+
b3Kb2/1QR1R3/b3p1B1/1nkN2q1/Q2r1rnr/1pb4P/1rB1BBNn/2b5 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 g5 f4 b5 a4 d5 c4 Kd7 c5 Kc6 h3 e6 f5 g3 a5 d3+ Ke3 g4 Kf4 d2 Ke5 e3 f6 e2 a6 e1B a7 g2 f7 d4 Ba3 d3 Rh2 g3 Qc1 d1B Qc2 d2 Rh1 b3 Ne2 g1N Nbc3 g2 Nd5 b2 Qa4 b1R Nef4 Bf3 Bd3 d1R Bc2 Na6 Bg6 Rb8 a8B+ Bb7 Bb2 Nh6 Bd4 Nc7 Bf2 Rd4 Ra3 Rb2 Ra2 Qd6+ Kf6 Bc3 Rh2 Be4 Rh1 Nf3 Rd1 g1B Ng2 Qg3 Rd3 Bg7+ Ke7 Ng4 f8Q Rh4 Qf7 Nfh2 Qf3 Bf8+ Kf7 Kd7 c6+ Kd6 Rd1 b4 Rd2 Na6 c7 b3 c8B Kc5 Ke8 Qf4 Rd1 Qg5 Qf7 Bd3 Raa1 Bc6+ Qd7 Rb4 Bcb7 Nb8 Ba6 Be2 Bad3 Na6 Bc2 Bc4 Bb7 Be2 Bc8 Ba8 Qb7 Bc4 Bd7 Bf1 Bb5 Nc7+ Kd7 Be2 Ra3 Bf1 Be2 Nb5 Ke8 Rc4 Be1 Be3 Bf2 Rf4 Rd3 Rcd4 Ra1 Rh8 Rad1 Bc1 Rf3 Re4 Rf7 Rh4 Re7 Rf4 Nde3 Rb4 Rdd7 Rbd4 Nd5 Na7 Bf3 Ba6 Be2 Nb5 Rc7+
Q1K1Q2q/R2n4/kbpb1r1N/1b3Bn1/1bb1N2q/2Bp1BrP/6b1/1n3R1B b - - 0 1 illegal: No possible last move
rk1B1R2/nBN1P1bn/K1ppN1n1/2rnbb1Q/Q2q2R1/4n1r1/1B5b/B7 b - - 0 1 illegal: No proof kernel
Qb1N1n2/2b1p2P/Rbn1Qq1b/1QNpq2r/8/1B2bnR1/bQ2K3/Bkr5 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 b4 Kf7 c4 Ke6 f4 Kf5 h4 a5 h5 g5 c5 d3 b5 a3 b6 e3 c6 Ke4 f5 a2 h6 e2 b7 g3 f6 g2 f7 a4 c7 d2+ Kf2 Kd3 Ba3 g4 Nh3 g1B+ Kg2 g3 Kf3 g2 Nc3 Bb6 Bb2 g1B Nd5 a3 Bc1 Nc6 b8Q Nf6 Ne3 Nh7 Qa4 d1Q Nc4 Qe1 Rb1 a1B Rb3+ Kc2 Ne5 a2 Rd3+ Kb1 Bb2 Bge3 Nf4 d5 Ne6 Ba6 c8Q Bc4 Rh5 Qd6 Nc5 Qf6+ Qf5 Qc3 Qb5 e1N+ Ke2 Nf3 Qe6 Qd4 Qb7 Rc8 Rh4 Bg7 f8Q Qc3 Qe8 Nf8 Nf7 Qce5 Nd8 Rh7 Bc3+ Bb2 Rg4 a1B Rg3 Ba2 Rd4 Bc7 Ra4 Bb8 Ra6 Bc7 Bb4 Bbd4 Bc3+ Bb2 Qa8 Rh8 Q8d7 Bb8 Qdb7 Rc7 Nb3 Bb6 Bd4 Ba3 Ba1 Bd6 Nc5+ Nb4 Nd3 Rc1 Nc5 Bdc7 h7 Rg8 Bh3 Bgh6 Bg4 Rg5 Bh5 Kc2 Be8 Nc6 Bd7 Rh5 Be8 Rch1 Bg6+ Kc1 Bc2 Rf1 Bb3 Kb1 Qa5 Rc1 Qc3 B6a7 Qb5 Bab6 Qb2+
5Nbq/1K2pN1P/2B1pNkb/3qb1qr/1n1Q1R2/2B5/qn1Q1R2/qq3rN1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g4 hxg4 e5 a5 e6 axb4 Bd2 fxe6 Be3 Rh7 Bc1 Rh8 Ke2 Kf7 Kd3 g5 Kc4 b5+ Kc5 d5 f4 d3 h4 g3 a4 g4 c4 d2 h5 d4 h6 d3 a5 b3 f5 g2 f6 b4 a6 g3 a7 b2 Nh3 g1Q+ Nf2 b3 Kb5 g2 c5 Bd7+ c6 Na6 Qe1 d1Q Ra4 d2 Rf4 Kg6 f7 Nf6 Ne4 Ng4 Rh2 Nb4 Nbc3 b1Q Bb2 Qa2 Ne2 Nf2 Bc3 b2 Nf6 b1Q h7 Bh6 Kc5 Rf8 c7 Be8 Kb6 Nfd3+ Kb7 Nb2 c8N Qdc1 Qf2 d1Q Qd4 Qba1 Nd6 Qcb1 Qd2 Qe3 Qd4 g1B Rhf2 Bh2 Ng1 Rc8 a8Q Rc5 Bb5 Rh5 Bc6 Qe5 Qd2 Qg5 Qa7 Qdb3 R4f3 Be5 Rf4 Qd5 Nfe4 Qf6 Qad4 Qh8 Nf6 Q8a5 Qb6 Qac5 Qa7 Qe3 Qb6 Qg3 Qbd4 Qg5 Nfe4 N2d3 Re2 Qa4 Rf1 Nb2 Rh2 Q4a2 Rf3 Rg8 f8N+ Kg7 Nd7 Rf8 Re2 Rf5 Nef6 Bf7 Rh2 Bg8 Nf7 Rf4 Re2 Kg6 Rf1 Re4 Rf4 Re3 Rg2 Re1 Rgf2 Rf1 Nf8+
3NNn2/1pBn1bN1/1nQP4/2n3b1/B1p4n/1bRk4/1KRq2r1/QNr2qn1 b - - 0 1 illegal: No possible last move
K1b3b1/NpqQbrpr/1kP1b1B1/6n1/Nb2bnr1/5Q1R/1B1N2N1/R6q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 h4 d5 c4 Kd7 a4 Kc7 e4 g3+ Kf3 b3 c5 b2 c6 d3 e5 d2 h5 g2 a5 d4 h6 d3 h7 Nh6 a6 Nd7 e6 Nc5 e7 Nf7 e8N+ Kb6 a7 Be7 Ra4 Qc7 Qe1 d1B+ Qe2 d2 Rh6 Bb3 Nh3 d1Q Nd2 b1B Bb2 g1B Nd6 Bbe6 Nb5 Nd3 Ra1 Bgc5 Rh5 Bb4 Rh4 Rd8 h8Q Rd4 Qd8 Bc2 Bg2 Qh1 Qd7 Rb8 Qd1 Ng5+ Ke2 f3+ Ke3 f2 Qf3 f1R Nf4 Rf2 Rh3 Bcb3 Bf1 Rh2 Ng2 Rg4 Be2 f4+ Kd4 Bbd5 Bd1 Be4 Bb3 Bg8 Bf7 Ra8 Bg6 Rb8 Qe2 f3 Qe3 f2 Qf3 Nf7 Kc4 f1B Kd4 Be2 Kc4 Nf4+ Kd4 Nd6 Ke5 Bec4 a8N+ Kc5 Na7 Bce6 Nb6 Ra8 Nd5 Rb8 Nc3 Kb6 Kd4 Nf7 Na4+ Ka6 Rg3 Rh7 Rh3 Ng5 Qd6 Bcd7 Ke5 Rf8 Kd4 Bc8 Qd7 Nd5 Kc4 Rf7 Kd4 Ba5 Kc4 Nf4+ Kd4 Bf6+ Kc5 Be7+ Qd6 Rh6 Nb5 Bd8 Qd4 Rh7 Qd7 Qb6+ Kd6 Bc3 Na7 Qa5 Nb6 Be7+ Kc7 Bcb4 Kb8 Qh2 Nf1 Qh1 Na4 Qc7+ Ka8 Ka5 Nd2 Ka6 Nc5+ Kb6 Na4+
NB1N1r2/p2k1b2/4Q3/4br1B/K2RnB1P/1nrp4/2r1bB1r/1nq1b1RQ b - - 0 1 illegal: No possible last move
NbqRr2R/2nn3q/1kn1N3/7p/pPn1B1r1/Rb5b/1BRQ2Q1/3b1b1K b - - 0 1 illegal: No possible last move, all moves rejected
q2B3B/5nK1/R2Qr1b1/1p4n1/1pBnQ1N1/2nqB2n/Pq1k1q2/3rN1bR b - - 0 1 illegal: No possible last move
k1qR2BB/n1rr1Q2/1brb2rb/p3N1rp/2Q1K1b1/1R6/P5RR/5qNn b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 Kd2 a5 Ke3 c5 f4 e5 b4 d5 g4 Kd7 g5 Kc7 f5 Kb7 b5 h5 f6 c4 b6 c3 g6 d4+ Kf2 e3+ Kf3 d2 f7 e2 g7 e1B Bd3 c2 Be2 e4+ Kf4 e3 Bc4 h3 Bd5+ Nc6 Kf3 h2 Na3 d3 Nb5 e2 Be4 Bf2 Nh3 e1R Na3 Nf6 g8Q Rh7 Qg5 Bd6 f8R Ra6 Nf4 Ng4 Qg7+ Ka8 Qd4 Rg1 Bb2 c1B Rh8 Rc7 Qb3 d1R Ne2 d2 Bh7 Na7 Qf7 Bf5 Qf4 Qc8 Nc4 Rg2 Rf8 Rdg1 Bg8 d1R Ne5 Rd5 Qb4 Bh6 Rd8 Bd4 Rd1 Nf2 Rd2 Rg5 Qc4 Bg4+ Kf4 Rg3 Rg1 h1Q Rg2 Qe1 Ng1 Nh1 Rdf2 Qf1 Ke4 B4c5 Rh2 Bd4 Rfg2 Bf2 Nef3 Rg6 Bh8 Rdg5 Ne5 Rf3 Qe8 Rff7 Qee6 Rfd7 b7+ Kb8 Qf5 Rac6 Qff7 Bb6 Bf6 Be3 Bh8 Nb5 Kd5 Ka7 b8R Bd4 Rb6 Ka8 Rb7 Na7 Rb3 Bb6 Ke4
rNQ1Q3/4qBqk/NB3qP1/1b3pq1/5Q2/nQ1r4/K1Rr2p1/Rr2bnq1 b - - 0 1 illegal: No possible last move
Q1KR3r/3Nr3/6p1/qN3R1r/3r1nnP/q1bQQ1k1/2prB3/QbBqq3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kd6 a4 b5 h4 f5 e4 c5 a5 g3+ Kf3 g6 d5 Ke5 a6 g2 d6 c3 a7 b3 d7 b2 Rh3 b4 Rh1 c4 Qc2 b3 Qd2 c2 Ra6 c3 Nh3 g1R Rb6 Rg2 Qe1 Nf6 Qe2 Nh5 Qd1 Rd2 Bg2 Bb4 Rg1 Nc6 Rb7 Qa5 Na3 b1R d8Q b2 Nb5 Be6 Rh7 Ba2 Qd3 Rae8 a8Q Re7 Rh1 Ra1 Qe1 b1R Bb2 c1Q Ba3 c2 Nf2 Bc3 Rf7 Rb4 Rf8 Rc4 Rf1 Bb1 Rd8 Rd4 Qee3 Qb2 Qa6 Qb3 Bc1 Raa4 Qa8 Qa3 Bh1 Rac4 Qa7 Rc5 Ng4+ Ke6 Nf6 Ke5 Rf2 Rcd5 Kg2 f3+ Kh3 f4 Kg4 Rb4 Kg5 Rbd4 Rf1 f2 Nd7+ Ke6+ e5 f3 Qa6 Nf4 Qa8 Rc5 Qa7 Kd5 e6 Ne5 Kf6 Ng4+ Kg5 Rg7 e7 Rgh7 e8Q Re7 Re1 f1Q Re2 Rhh7 Rf2 Rh8 Qf8 Qd1 Qg7 Ne5 Qa8+ Ke6 Rf1 f2 Bf3 Qe1 Rg1 f1Q Rg4 Ng2 Rf4 Qd1 Rf5 Nf4 Nc7+ Kd6 Kf6 Rb5 Qf7 Qfe1 Qa2 Ree8 Qa1 Ng4+ Kf7 Re6 Rg8 Rbd5 Kf8 Ree4 Nb5+ Ke6+ Ke8 Rc5 Rf7 Rch5 Rf5 Re5 Nc7+ Kd6+ Kd8 Re7 Kc8 Nd5 Ne5 Qb2 Rf4 Qba3 Nb5+ Ke6 Re4 Kf5 Nd7 Nh6 Rd8 Nf4 Bg2 Kg4 Bf3+ Kh3 Re5 Kg3 Rf5 Ng4 Be2+
Bn5q/1bk5/1B2KpR1/1p5n/1Brb3Q/N1rR1Qq1/qqq3Pr/1rN3B1 b - - 0 1 illegal: No proof kernel
8/1BB5/pb2N1nK/R3nb1P/1k1R2b1/NrpQnq2/4QQr1/nb2q1bQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 b4 Kd6 h4 g5 e4 c5 d4 f5 d5 f3 Ke3 a3 h5 a6 b5 a2 b6 f2 b7 c3 Bc4 f1B Bb2 f4+ Kf2 c2 Bd4 c1Q Qc2 g3+ Kf3 g2 Qe2 g4+ Kf2 g3+ Kf3 Nd7 Kg4 f3 Qd2 f2 Bg7 Rb8 Qc3 Qf6 Qb3 Be2+ Qf3 f1B Nh3 g1N Bb5 g2 Nf4 c4 e5+ Kc5 e6 c3 d6 Nb6 d7 Kb4 d8Q Nd5 Bc6 Bc5 Na3 Nge7 Rh4 Ng6 Qf8 Qf7 Kg5 Rg8 e7 Ne3 e8Q Qe1 Kh6 Bf5 Be5 Bd1 Qee7 B1d3 Bc7 Bb1 Qee8 Qd5 Ne6+ Qe4 Qf1 Nf3 Qh1 g1B Qd8 Nfe5 Qd3 Bdg4 Qf6 Rbf8 b8Q+ Bb6 Bb7 Qf3 Qbd8 Rf7 Qe2 Rd7 Qf7 Rd2 Qdd3 Rb2 Qfd7 Rb3 Q7d5 Qfg3 Qdg2 Qf3 Qgf2 Bc2 Rb1 a1N Rb2 Bb1 Ra2 Ka5 Nb5+ Kb4 Ra5 Rg7 Na3 Nf4 Nb5 Bh3 Ned4 Rg2 Na3 Nfg6 Rf4 Bhg4 Ne6+ Qe4 Nc4 Qd5 Rd4 Qf3 Na3+
1kb2Q1K/1qn1n1pp/r6Q/NQ1nr3/6r1/N1brnP2/RR3Q1B/1n3Bq1 b - - 0 1 illegal: No proof kernel
2qrq1B1/2p1pNR1/1q4P1/1bQrnN2/3b1n2/R4nK1/1N4Q1/Bnqkn2N b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 d4 Kc6 a4 Kd5 f4 b5 Kf2 h5 f5 h3 a5 h4 g5 b3 f6 h2 g6 b2 f7 c3 a6 h3 a7 b4 Qd3 c2 Qe2 e3+ Kf3 b3 Bg2 Nf6 Qd1 Kc4 d5 e2 d6 e1N+ Kg3 Bd7 Nf3 Nh5+ Kf2 Nf4 Nbd2+ Kd3 Kg3 b1N Ng5 b2 Qh5 Qe8 Nc4 Bb5 d7 Nc6 d8N Ne5 Ne4 Bg7 f8N Nd2 Nf7 b1N Bb2 c1Q Nf2+ Kc2 Bd5 Ndf3 Ne6 Rd8 a8Q Rh6 Qg5 Rh5 Ra3 Qe3 Qa5 Qb6 Ba1 Kc1 Rf1 h1Q Nd4 h2 Nb2 Bf6 Qg4 Rf5 Qh3 Qg1+ Qg2 h1Q Bc4 Qhh8 Nh1 Rh5 Nf5 Qgc5 Nd3+ Kd1 Qb4 Qe3 Qc5 Qc1 Ba2 Nd7 Bd5 Bd4 Be6 Nde5 Rf2 Qc4 Nb2+ Kc1 N5h6 Qf6 Rd3 Nh2 Qa8 Nd7 Nd6 Nd5 Nb7 Qf5 Bg8 Qfe6 Rf5 Nf4 Nd6 Qc3 Qg2 Nhf3 Rf8 Rd5 Nhf5 Nde5 Rf7 Qc8 Rg7 Qc2 Ra3 Qc4 Nd3+ Kd1 Nf7 Qc1 Nb2+
3R2NQ/P1NR2n1/1NK2nbB/2Q2q2/6nb/2k1rpnp/rb4B1/1b1qn2N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 d4 b5 g4 h5 a4 f5+ Kf3 Kd5 a5 c3 g5 Kc4 g6 c2 g7 h3 d5 h4 a6 b3 d6 b4 d7 b2 Na3+ Kc3 e4 b1Q e5 b3 e6 c4 e7 h2 e8N h3 Nf6 b2 Bg2 Be7 Qd5 Nc6 Qd6 Nd4+ Kf2 f3 Ke3 f2 Qb6 f1N+ Kf4 Ng3 Ke5 f4 Kd5 f3 Qc5 Ndf5 Nh5 Bh4 Qf2 Nf6+ Kc6 Re8 g8Q Ng7 Bh6 c1N Qh8 Nd3 Qc5 Ne1 Ra2 Qa5 d8N Qd1 Ne6 b1B Nc7 Bcf5 Rd2 Re3 Rd7 Bg6 Rd8 Ng4 Rd7 Ne4 Nf6 Ra7 Ng8 Nef6 Qh5 Qf5 Ne2+ Kb3 Rf1 h1N Ng3 c3 Nc4 c2 Nb6 c1B Rf2 Ba3 Rfd2 Bb2 Rd8 Kc3 R2d7 Nhf2 Nh1 N2e4 Qg5 Ng3 Qh5 Rb7 a7 Rb8 Nc8 Rb4 Qg5 Ra4 Nb6 Ra2 Qh5 Qfc2 Qb5 Qf5 Qc5+
1KbR2n1/1BB3N1/1r1n4/N2qBQq1/1rkP2p1/q2r1nB1/1R1Q1p2/1n4bq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 h4 Kd6 e4 Kc5 d3 a5 e5 g5 b3 f5 h5 c3 h6 f3 Ke3 c2 h7 g3 e6 f2 e7 f4+ Ke4 a3 Ke5 a4 e8Q g4 Bh3 f1N Bb2 c1Q Qe1 a2 Qd1 a3 Qd2 f3 Qh6 g2 Qhh5 Ra6 Rh2 Nd2 Ne2 g1N Qd7 Rb6 Nd4 Na6 Nf5 c6 Qg6 Nc7 Bg2 Ne8 Ng7 Nd6 b4+ Kb5 Qdf5 c5 Qh6 c4 Bd4 c3 Bf2 c2 d4 Kc4 b5 Qb2 Qhg5 c1Q Bg3 f2 Bb7 Qd7 Rh6 Qbc3 Rf6 Be7 Rf8 Qf3 Rd8 Qh1 Nc3 Nb1 Ne4 Qc6 Nc5 Qcg2 Qd2 Qd5+ Kf4 Nf3 Nb3 Nc3 Rb1 a1Q Rb2 a2 Re8 Nb1 Rd8 Ra6 b6 Ra4 Ba8 Rb4 b7 Bf6 b8B Be5+ Ke3 Rb6 Bc7 Rb4 Bb7 Rb6 Bh4 Bh2 Bg3 Bg1 Kf4 Rb4 Rc2+ Qc3 Rb2 a1R Na5+ Kb5 Nb3 Ra6 Na5 Qa3 Nc6 Ne7 Na5 Re8 h8B Rb6 Nh5 Ng8 Be5 Qcc5 Ng7 Re6 Bf6 Re3 Be5 Rd3 Qc2 Nc4 Qd2 Qf7 Ke4 Qce7 Kf4 Qg5+ Ke4 Qfh5 Kd5 Nd6 Qf8 Qh7 Bc6+ Ka6 Kc5 Qe4 Qf5 Rb8 Bd5 R8b5+ Kc6 Rb7 Bb8 R7b6+ Kc7 Kb5 Bb7 Qd5 Ba7 Ra6 Kb8 Rc6 Nb3 Ra6 Bb6 Kc4 Bc7 Rab6 Na5+
1r6/KQR2q1k/N1rq3b/2pqQNBb/n3r3/1pN2NR1/2P1bb1r/1n3B2 b - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 Kf2 h5 Ke3 e5 g4 f5 a4 Kf7 d4 Kg7 d5 c5 d6 b5 a5 h3 d7 f2 g5 h4 a6 b3 g6 e4 a7 f4+ Kd2 b4 Ra6 h2 Ra5 e3+ Kd3 b2 Kc4 e2 Kb5 e1B Ra1 b3 Qd2 f3 Qa5 h3 Qd2 Rh6 Qd1 Nf6 Nd2 b1R Ra3 Nd5 Ne4 Nc3+ Kc4 Ra1 Ng3 Nb1 Ra6 Ra4+ Kb5 Re4 N3e2 Qc7 d8Q Bg4 Be3 Qd6 Qg5 Bh5 Qdd5 Nd7 Rc6 Rb8+ Ka6 Nb6 a8N Na4 Nc7 Kh8 g7+ Kh7 g8N Rhe6 Qd4 Bh6 Nc3 Rf6 Qde5 Rg6 Be2 f1B Qg2 f2 Bg5 Re6 Bc4 Bfe2 Ne7 f1Q Nf3 Bf2 Rg1 h1Q Ka7 h2 Na6 Rf6 Rc7 Re6 Qgg3 Qhg2 Qd5 h1R Qb7 Rh2 Qe5 Qh1 Rg3 Rg6 Nh4 Qf3 Bb5 Q1h1 Bd3 Qf7 Nef5 Qd1 Nf3 Qd5 Bd2 Rc6 Bg5 Qd6 Bc4 Q1d5 Bd3 Bd1 Bf1 Be2 Qb6 Rf4 Qb5 Re4 Qb7
1nB5/1N1Q3B/R2qnb1p/q2r3r/3BqbQq/P3Rp2/n2b2b1/B1NK3k b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Kd7 e4 Kd6 g4 f5 g5 c5 e5+ Kd5 e6 Ke4 e7 b5 e8B h3 g6 f3 d5 f2+ Ke2 c3 d6 f4 g7 b3 a3 c4 d7 b4 Qd6 h2 Qb6 c2 Bd2 c1B Bf7 c3 Bh5 b2 Kd1 b3 Qa6 c2+ Ke2 Qa5 d8B Bb7 Be1 Be7 Qa7 Nf6 g8Q Nfd7 Nh3 Nc5 Bc7 Bd2 Qc8 c1B Ng1 Ne6 Qd7 Bf6 Bh3 f1Q+ Kd1 Qfa6 Bf2 Qd6 Bfb6 h6 Bd4 Rd8 Ne2 Bc6 Re1 h1Q Bg6+ Kf3 Bg4+ Kg2 Bh7 Qh4 Nbc3 b1Q Na4 b2 Nc5 Qe4 Nb7 b1N Ra2 Bd5 Rc2 Kh2 Rc6 Kg2 Bg1 Kh1 Qd4 Ra6 Qa4 Rb6 Qc4 Rb5 Ra6 Bc6 Bcb6 Rh5 Bbd4 Bd5 Ba1 Bc6 Rf1 Bd5 Rf3 Bc6 Rd3 Nc3+ Kc2 Na2 Bgd4 f3 Bgf5 Bb5 Kd1 Bf4 Qa4 Bcd2 Nc1 Bc4 Re3 Bf1 Qg7 Bg2 Qg4 Qdb4 Qc6 Rd5 Qb5 Qd6 Qd3 Ng5 Bc8 Ne6 Qb5 Bh3 Qa4 Bg2 Qd7
q4B1B/B1q3b1/3N1p2/1rPr2r1/R1q3nr/2np1bN1/B2R3k/1Q1nKQn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 Ke7 h4 Kd6 b4 Ke5 e4 d5 b5 a5 b6 g5 c5 f3 b7 f2+ Ke2 a3 h5 a4 h6 d3+ Kd2 Kf4 e5 Kg3 h7 f6 e6 d4 e7 a2 e8Q a3 Rh2 Nh6 Nf3 Bg7 Qe3 Ra5 Qb3 Na6 b8B+ Nc7 Qa4 Rb5 Qc2 Bb7 Bg2 f1Q Ne1+ Bf3 Ba7 Nd5 Qb3 Nc3 Bb8+ Qc7 Qe7 Rd8 h8B Rd5 Bb2 Qe2+ Kc1 d2+ Kc2 d1N+ Nd2 Qe6 Nc4 d3+ Kd2 Qe4 Nd6 Qc4 Rc1 a1R Qe2 a2 Qf1 Rb1 Nc2 a1Q Nd4 Qa8 Ba7 Ra1 Rh4 Ra4 Ke1 Rab4 Bh3 Kh2 Ne2 g3 Rc2 g4 Bc1 g2 Rd2 g1N Qb1 g3 Re4 g2 Be6 Nh3 Bf7 g1R Rf4 Rgg5 Bg8 Ng4 Be6 Qe4 Bg8 Rdf5 Ba2 Qe6 Rc4 Ng1 Re4 Rd4 Rf4 Rdd5 Ra4 Rf4 Bb2 Qe4 Ba1 Qc4 Nf5 Ne4 Be5 Ngf2 Bd6 Nec3 Bf8 Rh4 Nd6 Ng4 Ng3+
QB6/1rN1K1N1/N2rp3/3qk3/1r1b1p1R/Pb1b4/b1N2nrq/q1Q2nRB b - - 0 1 illegal: No proof kernel
2bR2q1/2r1Q3/bRPpNr1B/n3rr2/B2Rb1Qb/p1R1n1q1/k7/2K2Nn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 g4 Ke6 c4 f5 b4 h5 e4 a5 e5 d3 g5 d6 c5 Kd5 e6 Kc4 b5 h3 g6 h4 e7 h2 e8Q h3 b6 f3 b7 f2 g7 f4 Qe5 f3 Qb2 Be7 Bg2 Ra7 Bf1 Nf6 g8R Rh5 Re8 Ng4 Qa3 Nc6 b8R Rc7 Rb2 Bh4 Rba2 Nge5 Be2 f1R Rf8 f2 Rh8 Nf3+ Ke3 Rg5 Rh7 Qg8 Bb2 Re1 Bd4 f1R Qb2 Rg6 Be5 Rf6 Bf4 Qg3 Qbc2+ Kb4 Bh6 d2 Qg6 Rf2 Qc1 Kb3 Rc2 d1N+ Kd3 Rff1 Rd7 Rf2 Qe8 Qg8 Bf1 Re5 Ne2 Qg3 Raa2 Ne3 Qd1 Qg8 Rg1 h1B Qe7 Qg3 Rg2 h2 Rd8 Ng1 Kd2 R2f5 Kc1 Ba6 Rf2 Be4 Nf4 Bc8 Be2 Bd3 Bg4 h1B Rfd2 Bda6 Rd4 Be4 Qe2 a3 Ra1 a2 Nd2+ Ka3 Nf1 a4 Rb1 Na5 c6 a1Q Qg2 Qe1+ Bd1 Qa2 Qg4 Qg8 Ne6 Qg3 Rc3+ Ka2 Rb6 a3 Ba4
qn2B3/q1n1k3/1p1p1QRq/1rq1BKb1/1nr3N1/2B1rb2/1N3P2/2nBR2Q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 c4 g5 h4 d6 a4 b6 a5 e3 Kd3 e2 Ke4 e1Q+ Qe2 d3 c5 d2 c6 d1Q a6 g3 a7 g4 h5 g2 c7 g3 h6 b3 h7 b2 Nc3 b1R Nf3 g1N Ra4 g2 Nd5 Bg4 c8Q Qed2 Rh6 Q1c2+ Qd3 Be7 Rh4 Qh6 Qc4 Ne2 Qd4 g1Q Ne1 Qc5 Qd1 Rb5 Nd3 Bf3+ Kf5 e4 Bb2 e3 Re4 Nc1 Bc3 e2 Nb2 e1N Be2 Nc2 Rg4 Qg3 Qh1 Nf6 Rg6 Nb4 Bd1 Qdc7 Ra2 Qg2 Ra1 Kd7 Qe5 Ne8 Ne3 Bg5 Ng4 Qb7 Rb1 Nc7 Ra1 Re8 h8B Re6 Bg7 Ke7 Rb1 Nbd5 Qeh2 Re3 Bge5 Nb4 Ra1 Qg7 Qh8 Qh6 Rb1 N8a6 Ra1 Rc8 a8B Qa7 Bc6 Nb8 Rb1 Be2 Be8 Qga8 Ra1 Bf3 Bc2 Ncd3 Re1 Nc1 Bd1 Qc4 Nd3 Ne6 Bb3 Rc6 Bd1 Nc7 Nb2 Qd4 Re2 Rc4 Re1 Qc5 Qf6+
2n1Q2N/2PqQpr1/2BN2bk/q3qB1R/1q1rn1p1/B1b1Kn2/r3R3/rB6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 h4 b5 a4 g5 c4 g3+ Kf3 d3 e4 d4 c5 b3 a5 g2 c6 d2 h5 g4+ Kf2 b2 e5 d3 e6 b4 a6 f3 e7 b3 a7 Bg7 h6 Nd7 h7 Nb6 Rh2 Nf6 Qe1 d1R Ra6 d2 Bb5 Ne4+ Ke3 f2 Rh1 f1Q Na3 b1R Ne2 g1N Nf4 b2 Bd3 Bf5 Rh5 Bc3 Nc4 Rg8 h8Q Ra1 Ra2 b1Q Ba3 Nf3 Ng6 Nc8 Rg5 Qa5 c7 Qbb4 Bb1 Qh3 Qhh4 Qg3 Nh8 Rg7 Rc2 Qge5 Nd6+ Kd7 e8B+ Ke7 Ra2 Kf8 Bd7 Bg6 Bf5 Kg8 Rb2 Ra2 Qe2 Ra1 Qhe1 Kh7 Qb5 Kh6 Qe8 Rc1 Rc2 d1Q Re2 Rc2 Qe7 Rca2 Qe8 Rb8 a8B Qda4 Qe7 Qd7 Bc6 Rb7 Qd1 Rb5 Qa4 Rd5 Qb5 Rd4 Qb8 Na7 Qbe8 Nc8 Rh5+
1R3Q2/r1p2pn1/3b1q1q/1B3PRk/r1QN3n/R2N1r1b/1q1n1rnR/6BK b - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 a4 b5 f4 h5 Kf2 e5 d4 c2 g4 h3 d5 h4 a5 e3+ Kf3 e2 a6 e1R a7 e4+ Kf2 e3+ Kf3 h2 Kg2 b4 g5 b3 d6 e2 d7+ Ke7 g6 Kf6 g7 Kg6 Bb2 c1Q Ra6+ Bd6 Qd2 h3+ Kg3 Kh5 Ra3 Ne7 g8Q Na6 Qb4 Nc5 Qa4 Nf5+ Kf3 Qf6 d8R Ne6 Kf2 Nh4 Nf3 Ng7 Ba1 b2 Nc3 b1N Nd5 Nd2 Qc4 Qcb2 Nd4 Rh7 Rg1 h1R Qf8 h2 Nb4 Bh3 f5 Rd1 Rgg3 e1N Nd3 Neg2 Rb8 Rc1 Rg4 Rc3 Be2 Rg1 Bf1 h1Q Rg5+ Kh6 Be2 Rgc1 Ra2 R1c2 Ra3 Qh2 Ra2 Qf4+ Kg1 Ra3 Kh1 Ra4 Bf3 Rc3 Bc6 Rb3 Bb5 Rba3 Nf2 Rf3 Nd3 Rh8 Qe7 Re8 Qf8 Re2 Ra3 Qb3 Bc3 Ref2 Bb4 Qa2 Bc5 Qb2 Rb6 Rb8 a8R Rb7 Re8 Rba7 Re2 Qe3 Rb8 Ne1 Rg2 Kh5 Rh2 Qeg5 Re6 Qfh6 Rg6 Qf6 Rg4 Neg2 Bb6 Qe3 Rg5+ Kh6 Nb3 Re2 Rg6+ Kh5 Bd4 Qh6 Bg1 Ref2 Nd4 Ne3 Rg3 Neg2 Rg5+
KRNr4/1P6/2n1q2p/Qb2Q1bq/r4B2/Qqnnn3/QRN2pB1/5qrk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 Kg4 e4+ Kg3 b4 f5 c4 a5 e5 d3 c5 f3 e6 a3 c6 h6 b5 h3 b6 a2 e7 h2 e8Q d2 c7 f2 b7 f4 Nc3 f3 Be2 f1N Qe4 f2 Qf5 a4 Qh7 a3 Nb5 Ne3+ Ke5 d5 Qb3 d1N Na7 d4 Qe7 d3 Bg4 d2 Nf3 Na6 Bh3 Nc3 Nd4 d1Q Nc2 Bd7 c8Q Nc5 Qc7 Qe8 Nc8 Nd3+ Kd6 Ra4 Qa5 Bb5 Kc7 Bg7 Kb8 Bf6 Qbe6 Bg5 Ka8 Qc6 Rg1 h1Q Rb1 Kh2 g4 a1Q Rb2 a2 Qa3 Ne7 Qe4 Rd8 Qe5+ Bf4 g5 Qe6 g6 Nc6 Rg3 Bg5 g7 Qdf3 Bd2 Qaf1 g8Q a1R Bc1 Qfd5 Rf3+ Kg1 Rf8 Qb3 Qf7 Qf3 Bd2 Qh5 Bc1 Nc4 Bf4 Ne3 Rg8 Kh1 Rf8 Qf6 Qc4 Qe6 Rh8 Qb4 Qca2 Qbb3 Bg3 Qe1 Bf4 Rdd4 Nb6 Qee2 Re8 Rg1 Rb8 Rd8 Nc8 Qf1 Bg2+
2Nb2r1/qpbQ3b/B5B1/n2q3r/1n1N1B1R/n1k4p/R3rB1P/2Qbn1K1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Kf2 Kd7 a4 Ke6 g4 Kd5 d4 e5 g5 c5 g6 f5 a5 h5 a6 h4 a7 e3+ Kg2 h3+ Kf3 e4+ Ke2 Kc4 d5 f3+ Ke1+ e2 Kf2 f4 g7 c2 d6 Rh5 d7 Na6 Bd2 c1Q Ra5 Ne7 Ra1 Qa3 Qe1 Nc6 Bg2 Be7 Qd1 e1R g8B+ Kd4 Ba2 c4 Bb3 c3 Ba4 c2 Nc3 c1B Bc2 Bb2 Rc1 Nab4 Nd5 Kc4 Nc7 Be5 Na6 Bc7 Nc5 Qg8 d8B Bf5 Nd3 Bh7 Ne2 Qa5 Rf1 e3+ Kg1 Qe6 Ra1 f2+ Kh1 f3 Ra2 Qf7 Ndf4 Qfd5 Nd4 e2 Qc1 Qb6 Rg1 f1B Ng6 f2 Bf4 Kc3 Bge4 Rc8 a8Q Bf6 Be7 Rg8 Qa4 Qa7 Rg4 Na5 Qd7 Bh4 Bc5 Bhd8 Nf5 Rd1 Bf3 e1N Rh4 Be2 Nge7 f1N Nc8 Rd2 Bf2 Bd1 Nd4 Ne3 Bg6+ N3c2 Bfe4 Re2 Kg1 Nc4 Bd3 Na5 Qb1 Na3 Ba6 Ba4 Qd1 Bb3 Qb1 Bd1 Qc1+
1K1brBq1/p1Qr3Q/3BNbB1/Rb3N2/2kB1n1q/1R4nn/p2rP3/b1n5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 f5 Kb5 Kd5 h4 g5 b4 d3 h5 g3 h6 g2 c3 g4 h7 g3 Ra2 a3 Rb2 d2 Nh3 g1B Rc2 g2 Rb2 a2 Na3 f3 Rh2 f4 Qa4 d1N Rb3 f2 Be3 f3 Bd4 Ne7 Nc2 Bg7 Ne1 Bf6 Ng5 Nbc6 Be5 Re8 h8B Ng6 Bb8 Na5 Qa3 Nf4 c4+ Kd4 c5 d5 c6 Bd7 Ka6 Kc4 b5 d4 c7 d3 b6 d2 c8Q+ Bc6 Rb1 Nb3 b7 Nc1 Qc7 Ba1 Ne6 Qh4 Bf6 Re7 Nc2 Rd7 Rh1 Bh2 Rb3 g1B Bh3 f1Q Bc3 f2 Bd4 Qg2 Bf5 f1N Bg6 Ng3 Qe7 Nf2 Qf7 N2h3 Qh7 Be3 Rf1 d1R Rf3 Nfd3 Rf5 Bg5 Ra5 Ndf4 Rba3 Rd2 Ne3+ Kb4 Nf5 Kc4 Rb3 Bf6 Qc8 Qh5 Bd6 Qh4 Qc7 Re8 b8B Qg1 B6c5 Bb5+ Kb7 Bd8 Ka8 Bf6 Qb7 Qg2 Bf8 Bd8 Bbd6 Qd5 Ng5 Qg8 Ne6 Bg1 Kb8 Bf2 B4c5 Bfd4 Qc7 B4f6 Bd4+
5K2/p1rq2R1/2k1q2N/6n1/2N1r1bB/pPr1b1rR/n1R1Q3/nBRQq2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 f5 Kc4 d5+ Kb5 Kd7 e4 a3 g4 h3 c4 h4 g5 d3 c5 h2 b3 d4 g6 f3 e5 h3 g7 d2 Kc4 f2 Kd5 d3 Qe1 d1R Qe2 d2 Qe1 f4 Bb2 f3 Ne2 Qe7 Nbc3 Nh6 g8R Nc6 Ng3 Nb4+ Kc4 Rc1 Bd3 f1N Nh5 d1Q Ng3 f2 Qd2 Na2 Kd5 Rh7 Nf5 Nf7 Na4 Bh6 e6+ Kc7 c6 Ne3+ Kd4 f1R Nb6 Rc2 Rc1 Rg1 Rg2 Rc5 Bb1 Nc2+ Ke4 Qd6 e7 Na1 e8Q Qf6 Rg4 Rg3 Qe6 Qe7 Bf6 Qd6 Qc4 Be3 Nh6 Qe1 Rg5 Bg4 Qd1 Re8+ Be7 Rg7 Qcd3 Qf6 Qf1 Rc2 Kd5 Rh7 Qff3 Qg6 Bf6 Re4 Be7 Qf6 Rg8 Qg6 Bh4 Ng5 Qg2 Qb4 Qgd2 Qa4 Qd3 Qe8 Q3e2 Rf7 Rg7 Rcc4 Rg1 h1Q Rg2 Qe1 Rh2 Kb8 c7+ Kb7 c8R Qe7 Rd8 Rc3 Rh1 Qee8 Kd6 Rfc7 Nc4 Qg8 Ne5 Qgc4 Rdd7 Qab5 Ke7 Qe6+ Kf8 Qbc6 Rd4 Qcd7 Nc4 Kc6 Rd2 h2 Nd6 Rg2 Rdc2 Rg1 Nc4 Rg2 Rf1 h1N Rf3 Rg1 Rh3 Rg2 Nf7 Rg3 Nh6
R1N2Q1b/2r3rn/3p2rr/K2bb1rQ/5k2/RNQ1q2P/1B3p1b/1r1B1nQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 a4 Ke6 e4 Ke5 c4 b5 a5 f5 c5 g5 c6 f3 c7 b3 h3 f4 a6 d6 a7 g3 Ra6 f2 Ra1 b2 Qb3 d3 Kc3 g2 Kb4 g4 Ra2 d2 Qa4 d1R Nc3 b1R+ Rb2 f3 Ka5 g3 Qb4 Rd5 Bc4 f1R Nge2 g1B Be3 g2 Ra2 f2 Na4 Nd7 Qb3 b4+ Bc5 Ne7 Ra1 Nf5 Qc2 b3 Qc1 b2 Ba2 Bg7 Qg5 Qe8 Qh5 Bb7 c8Q Nf8 Nb6 Rbc1 Qg6 b1R Bb3 Ng3 Bd1 Nh7 Ra3 Bh2 Nd4 g1B Nb3 Kf4 e5 Rc4 e6 Rg5 e7 Bd5 Bb4 Rc7 Bc3 Rb8 a8Q Rbb7 Ba1 Re1 Bd4 Nf1 Bb2 Re6 Qh5 Reg6 Qa6 Qc6 e8Q Qc1 Qf8+ Bf6 Qae2 Qe3 Qe1 Bg3 Qc3 B1h2 Qb8 Rcg7 Nc8 Rbc7 Qa7 Kf5 Qa6 Be5 Qae2 Kf4 Qee1 Rh6 Rg1 Rhg8 Rg2 Ng3 Qg1 Nf1 Rg3 R7g6 Kb4 R8g7 Ra8 Qd2 Ka5 Qe3 Rf3+ Ke4 Qgg4+ Qf4 Qc6 Rg8 Qg1 Bh8 Na1 R8g7 Ra3 Qc1 Qc3 Qe3 Qd8 Kf5 Nb3 Kf4 Qf8+
R4K1N/2N1n3/bN1pbk1r/NB1Pq1b1/n6n/R1rQ2pb/Q5b1/Bb2n3 b - - 0 1 legal: proof: g4 c5 f4 h5 b4 hxg4 f5 cxb4 f6 a5 c3 a4 Qb3 axb3 Bb2 exf6 Ba3 f5 Bc1 f4 Kf2 Ke7 a4 g5 h4 b5 e4 f5 d4 f3 Kg3 f4+ Kh2 b2 d5 d6 e5 f2 e6 g3+ Kh3 g2 Kg4 b3 Kf5 f3 Kg6 g4 c4 g3 c5 b4 a5 Na6 c6 Nc5 c7 Nd3 h5 Ne1 a6 Bh6 a7 Bg5 Kg7 Rh6 Rh4 Ba6 c8Q Qe8 Na3 b1N Qc4 b2 Ne2 g1N Nd4 b3 Qd3 Rc8 a8Q Nc3 Nc4 b1B Nb6 b2 Nb3 Na4 Na5 Rc3 Ra3 Bc2 Rd4 b1B Bb2 Bd1 Be2 f1B Ba1 f2 Rf4 Bh3 Rf8 f1B Qa7+ Qd7 Ra8 Bfg2 Bf1 Ngf3 Be2 Rf6 h6 Nh4 h7 Rh6 Bf1 Bdg4 h8N Bc8 Qaa6 Qe8 Qac4 Ba6 Qa2 Qc6 Qf5 Qc8 Bb5 Qe8 Qd3 Rg6+ Kh7 Kf6 e7 Be6 Qf2+ Ke5 Qa2 Rh6+ Kg7 Qh5 e8N Ne7 Nc7 Qe2 Kf8 Kf6 Rb3 Qe5 Ra3
1Rb1K2k/2QnR3/pBp1nB1n/4b1QN/nbR5/P4R1b/b2q1br1/N2r4 b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 g5 d6 Bd3 dxe5 Bf5 e4 Bg4 hxg4 Kf2 f5 b4 Kf7 d4 Kg7 h4 e5 h5 f3 Kg3 c3 Kh4 c2 a3 c6 b5 g3 d5 a6 d6 f2 d7 f1B b6 f4 b7 g2 Ra2 e3 Nd2 f3 Rh3 e4 Qe1 f2 Rg3 e2 Nb3 e3 Na1 Bd6 Rh3 Be5 Qa5 e1N Rf3 e2 Nh3 g1B Qc7 Nd3 Be3 e1B Nf4 c1N Re2 Nh6 Bb6 Na2 Re4 Nc5 Rc4 Ng8 Kg4 Ne6 Kf5 Bb4 g6 Rh7 h6+ Kh8 Nh5 Rg7 h7 Nc3 Nb3 Na4 Na1 Qe7 d8R Qd7 Rf8 Qd2 Rf7 Nd7 b8R Bg2 Re7 f1B Rcf4 Bc4 Rd4 Ba2 Rc4 Nf4 Kg5 Bf2 Kf5 Ne2 Ke6 Nh6 Qd6 Rg8 Qc7 Nf5 Kf7 Nf4 Rb7 Ne6 Rb8 Rg7+ Ke8 Bh3 Qa7 Nh6 Qc7 Rf7 Ng3 Kg7 h8B+ Kg8 Bf6 Rg7 Nh5 Ra7 Bd4 Rb7 Be3 Rb5 Bb6 Rc5 Rd4 Rc1 Rh4 Rd1 Rc4 Rf7 g7 Kh7 Bh4 Rf4 Bg5 Rg4 Bf6 Rg2 Rf5 Nf7 g8Q+ Kh6 Qg3 Kh7 Qe3 Kg8 Rf3 Nh6 Ng7 Kh7 Qg5 Kh8 Nh5+
RN1r1Q2/Q2np1Kb/3B1nb1/bR1n1bnp/qkN1n1P1/5Br1/3n2B1/6B1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 b5 f4 d5 g4 Kd7 c4 Kd6 a4 Kc5 a5 h5 a6 d3+ Ke3 h3 f5 d4+ Kf4 b3 Kg5 d2 Kg6 b4 f6 d3 a7 e3 f7 b2 Qe1 d1B Ra6 e2 Rb6 d2 Qh4 e1N Re6 b3 Bg2 h2 Rb6 Nf6 Ra6 Qe8 Qf2+ Kb4 c5 Bg7 c6 Nf3 c7 Nbd7 Ne2 Ng5 Na3 b1N Nd4 b2 Nc4 Bf3 Qg1 d1N Be3 Ndc3 Qf2 Ncd5 Rc1 Rb8 a8B h1N Ra2 Nd2 Nc6+ Kb3 Bc5 Ng3 Bd6 N3e4 Qa7 b1B Bb7 Ra8 Nb8 Be2 Ra5 Bed3 Rc5 Bbc2 Ra1 Kb4 Ra2 Rf8 Ra1 Bh8 Kh6 Rg8 f8B Bb1 Bg7 Rf8 Qa2 Ra3 Bc6 Rb3 Qa7 Bdc2 Ba8 Rg3 Ra3 Qf7 Raa5 Rd8 Ra1 Qe8 Bc6 Nfh7 Bd4 Bd3 Bf2 Bc3 Bg1 Nhf6 Bf3 Nf2 Bb7 Bh7 Kg7 Bbg6 Ba8 Nf2e4 Bg2 Nf8 Bf3 Bcf5 c8Q Qa4 Bg2 N8d7 Ra2 Nf2 Ra3 Ne3 Baf3 Nf2e4 Ra2 Ned5 Ra3 Rh8 Qe8 Rf8 Qf7 Rc8 Qf8 Rd8 Be5 Qd1 Qa6 Qc2 Ra4+ Kb3 Bd6 Qa2 Raa5 Qa4 Qb6+ Bb4 Ra8 Kc3 Qa6 Ba5 Qa7 Kb4 Rb5+
nN1b3r/BR1Q3b/1p2nb1k/1B1N4/bb2p3/1P3Rb1/qbNr1QKb/7N b - - 0 1 legal: proof: g4 d5 e4 a5 c4 dxc4 b3 h5 e5 hxg4 e6 a4 Ne2 a3 Qc2 fxe6 Qc3 e5 Ng1 e4 Qb2 axb2 f4 Kf7 Kf2 Kg6 h4 c5 d4 e5 a4 g3+ Kg2 e3 a5 b6 f5+ Kh6 a6 g5 h5 g4 f6 c3 d5 c4 f7 c2 a7 c3 d6 Na6 d7 Nf6 Rh2 Nd5 Bb5 Ndc7 Na3 b1B Kh1 Bb4 f8N Nc5 Kg2 N5e6 Bd2 c1B Be1 e2 Ra2 c2 Rh3 Bg5 Bd2 e1B Bf4 c1B Nc2 Bb2 Ne2 Qe7 d8Q Bd7 Qe8 Rd8 a8N Qd6 Ra6 Qd2 Ra7 Bf2 Rb7 Bfd4 Bd3 Ba4 Nd7 Bdc3 Nb8 Rd6 Kg1 g2 Bb5 Rd5 Kf2 g1B+ Kg2 Bh2 Rf3 g3 Qd7 Rd4 Na3 Bg6 Nc2 e4 Bd6 Bh7 Be5 Na6 Nc7 Bd8 Nd5 Nac7 Bd6 Na8 Bc7 Kg5 h6 Rd3 Bd6 Bcf6 Bc7 Qe1 Bd6 Rd2 Be5 Qb1 Bd6 Bg6 h7 Qa2 Bc7 Kh6 Bd6 Rf8 h8Q+ Bh7 Qg8 Re8 Qg4 Rh8 Qf4+ Kh5 Qe3 Kg6 Qf2 Kh6 Kh3 g2 Ng3 g1B Nh1 Bg3 Kg2 Ng7 Nc6 B1h2 Bb8 Ne6 Ba7 Re8 Nb8 Rg8 Qf7 Rh8 Qd7
1QQ2q1k/rr1Rn3/1Bp1b2r/1N1Bn1Np/n4bR1/br6/K1P5/n2bR2R b - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 g4 e5 a4 f5 d4 Kf7 Kd2 Kg7 d5 h5 g5 b5 g6 b3 Kc3 b4+ Kb2 f4 d6 f2 d7 c6 a5 h3 a6 f3 a7 h2 Ba6 f1B Qd4 f2 Qe4 Ne7 Bb5 Be2 Qc4 f1N Nf3 e4 Ng5 e3 Qf4 Bd1 Qf3 e2 Nh7 e1B Ng5 Bg3 Nh7 Nd2 Qf5 Bf4 Rf1 h1R Qg5 Rh3 Qc5 Re3 Ng5 Rh6 Be2 Kh8 Qb5 Qe8 d8Q Nd7 Qb8 Ne5 Bc4 Be6 Na3 Qf7 Rb1 Qf5 Ka1 b2+ Ka2 Nb3 Bd5 Na1 Rh1 Rb3 Be3 Qf7 Rc1 b1N g7+ Kg8 Qdb6 Rd3 Qc8 b3+ Kb2 N7g6 Qca6 Bdg4 Qc8 Nc3 Rce1 Bd1 Nh3 Na4+ Kb1 b2 Qbb8 Qf5 Ka2 b1R Bd4 Rb6 Nb5 Rb3 Be3 Kh7 g8R Ba3 Bd4 Ne7 Rg4 Qf8 Ng5+ Kh8 Bf2 Rb7 Bb6 Rd7 Qd6 Rb8 a8R Rc7 Ra7 Rd7 Qdc7 Ra8 Rb7 Ra7 Q7b8 Rc7 Qe8 Rc8 Rd7 Rcc7 Qed8 Rcb7 Qdc8
b5Q1/q1b3rq/2R2n1B/3BNkB1/1Br2qnK/pQn1pN2/Pb5p/Rr6 b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 g4 Kf7 b4 Kf6 f4 c5 Kf2 h5 f5 a5 b5 d5 b6 e5 b7 c4 Nd2 d4 Qa4 c3 Nb1 h3 Kg3 h2 Qd7 d2 Bb2 d1N Qe8 e3 Qb5 h4+ Kh3 a4 Qd5 e2 Na3 e1B Bc4 d3 Qb5 d2 Qa6+ Nc6 b8B e4 Bd5 Ra7 Qb7 Bd6 Qb4 Qa5 Qb3 Bb7 Rb1 Bc7 Nc2 a3 Qc4 Ne5 Bc1 Ba8 Nb4 c2 Rb2 Nc3 Nc6 d1R Bh6 c1Q Qb3 Qf4 Nf3 e3 Rc2 Rb1 Rf1 Bd2 Rh1 Bc1 Rd1 Nc4 Nce5 Bb2 Rf1 Rh7 Rd1 Rg7 g5+ Ke7 g6 Kf6 Rf1 Ra6 Rg1 Rc6 Rcc1 Qa7 Rge1 Ke7 f6+ Kd6 f7 h1Q+ Nh2 Ke7 f8B+ Kf6 Bb4 Kf5 Rg1 Qhe4 Nhf3 Nf6 Bg5 Na5 Rge1 Rc4 Rc2 Nc6 Rg1 Rf7 g7 Qd3 g8Q Rg7 Ng4 Ne5 Rd1 Ned7 Nge5 Ng4 Rf1 Ndf6 Rd1 Bd8 B8d6 Bc7 Bf8 Rh7 Bfh6 Rg7 Bc6 Qd7 Rcc1 Qf7 Rd6 Qg6 Bd5 Qh7 Rc6 Qfd4 Kg2 h3+ Kg3 h2 Kh4 Qf4 Rc2 Rf1 Rc1 Rd1 Ra1 Re1 Ng6 Rb1 Nge5
3br3/r2n1N2/pq1P4/B2N1nqb/2Bp4/1nq2Q1k/NNpr2R1/bR1Q2K1 b - - 0 1 illegal: No proof kernel
rB3nbr/Nn1R1n2/5K1k/1p1pN1RB/RRbp1P1r/1Q1qn3/7n/6bQ b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 g4 Kg6 c4 e5 f4 b5 a4 h5 c5 b3 a5 h3 c6 h4 c7 h2 g5 h3 a6 e3+ Kd3 e2 Ke4 e1N a7 b2 Nc3 b1B+ Qd3 Nf3 Nd5 Nh6 Be2 Bc5 Bb2 Ba2 Rb1 Bc4 Ra1 Nf7 Qb1 d6 Ra2 Be6 c8R Nd7 Nb4 Nf8 Rc7 Kh7 g6+ Kh6 g7 Bed5+ Kf5 Qd7+ Kf6 Qf5+ Ke7 Qd3 Bd1 Be6 Ne2 Bed5 Rf1 h1N g8R h2 Ng1 Ng3 Kf6 h1R Rg5 Rh4 Rd7 Nf5 Nc6 Ne3 Ra4 Nh2 Bh5 Nf5 Ba3 Re8 a8Q Nd8 Be2 Bg8 Bd1 Nf7 Qb7 Ra8 Rd8 e4 Rd7 e3 Na5 e2 Qh1 e1N Nf3 Bb4 Nc6 Bd2 Nfe5 Be3 Bh5 Bg1 Na7 Ng2 Qc2 d5 Rb1 Nge3 Bd6 Nhf1 Qb2 Nh2 Bb8 N5d6 Qa3 Nb7 Rbb4 Kh7 Qc3 Kh6 Qb3
n1nKBrbq/B1r2N1R/Q2b1pp1/p6N/4QP1r/3bNN1n/2bR1k2/4b3 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxb4 a4 bxa4 g5 e5 g6 exd4 Qd3 hxg6 Qd2 g5 Qd1 g4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 h4 g3 c4 Kg4 f4 d3 c5 f6 c6 g6 h5 b3 c7 d2 h6 a3 h7 g2 e4+ Kg3 e5 b2 e6 a2 e7 Na6 Kd6 Kf2 Qb3 d1R+ Bd2 Rc1 Na3 b1B Qb8 Bd3 Ne2 g1N Nd4 Nh3 Nf3 Rc2 Rc1 a1B Rd1 Bc3 Qb4 Qe8 Bc1 Be1 Qe4 Bb7 c8Q Bd5 Qcc4 Nc7 Qa6 Rb8 Bg2 Na8 Nc4 Bf7 Ne3 Rc7 Bb2 Bb3 Bd4 Bbc2 Kd5 d6 Ke6 d5 Bb6 d4 Ba7 Qd8 e8N Ne7 Ng7 Nc8 Nh5 Bd6 Bf1 Rf8 h8N Rb5 Ng3 Rh5 Nf7 Rh4 Nh5 Bc4+ Qd5 d3 Be2 Bb5 Qe4 d2 Bc4 Bd3 Bb3 Bc2 Ba4 Bbd3 Be8 Rc4 Ra1 d1B Rb1 Bb3 Ra1 B1c2 Rd1 Qb6 Kd7 Qb8 Kd8 Rc7 Nh8 Bg8 Nf7 Ba3 Qd4 Bc5 Qe4 Bd6 Qab7 Ncb6+ Qc8 Bh7 Ng3 Ng5 Rh3 Rh5 Rh1 Qb7 Qc6 Bg8 Ng1 Rh8 Qf5 Nc8 Qa6 Qf3 Qe4 Qh5 Nf3 Qh7 Rh6 Qg7 Rh1 Rh5 Rh4 Qh8 Rh1 Rh4 Rh3 Rg4 Rh7 Rh4 Nh5 Nh3 Rd2+
R2KQ1kn/1r2B1bp/4bnbp/P5R1/r7/p1r2RRN/4rrBQ/2N1q2n b - - 0 1 illegal: No proof kernel
nbkN1q2/PNnQQ1pr/Br2r3/7R/4Rb1p/1b4BR/Rn5p/2n1Kn2 b - - 0 1 illegal: No proof kernel
q6N/2qN4/1b2Q2N/2nb1Rn1/2Br1b1p/PpK2Q1b/p5r1/Rk1NBqb1 b - - 0 1 illegal: No possible last move
1bN1nkq1/5B2/1qRQ2N1/b2bQ2b/p1Q2P1b/2qQB1pp/1r1r4/1Rn2K2 b - - 0 1 illegal: No proof kernel
n1N5/Q1q1N3/n3KQB1/1n1p4/B1k2rp1/nn2brP1/p4N1N/Rb1qR1b1 b - - 0 1 illegal: No extended proof kernel
1KB2nk1/2B3N1/1Q2nr2/1Qrp1bR1/R2P1pQr/1p1q4/Nq2Q2q/b1r4r b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 h5 Kf3 c5 Ke4 b5 Kd5 f5 g4 Kf7 e4 f3 a4 b4 e5 h3 d3 h4 a5 h2 g5 c2 a6 c4 a7 f2 Ra4 h3 Bf4 c1R Qe2 c3 Bg3 b3 Nf3 c2 Nd4 Nh6 g6+ Kg8 g7 Nf7 e6 Rh4 e7 Ng5 Kd6 Ne6 Rg1 h1Q Nc3 h2 Bh3 f1R Na2 Qg2 Be5 h1R Bh2 Qf2 Rg5 Qg1 Be5 Qh2 Bg4 f4 Nf5 Rf3 Bh3 Re3 Bg4 Re4 Bh3 Rc4 Bg4 Rc5 Bh3 Qa5 d4 Qd2 Qb5 Qd3 Bg4 Nc6 Qb6 Ncd8 Qb5 Rb8 a8Q Rb6+ Qac6 Rb1 Ra5 c1Q Ra4 Qcb2 Bh3 Ra6 Qcb6 Rbc1 Rh5 Ng5 Bg4 Nh7 Rg5 Nc6 Kc7 d5 e8Q Nd8+ Kb8 Ne6 Qh5 Be7 Bh3 Nhf8 Qe2 Bd8 Qa7 Bb6 Bc7 Ba5 Qab6 Bc3 Ng3 Nd8 Nh5 Bf5 Bg4 Be4 Bc8 Bf5 Q6a5 Rf6 Qaa6 Kf7 Qab6 Nde6 g8Q+ Ke7 Qe5 Qa3 Rg2 Ba1 Qe2 Qb2 Qg5 Kf7 Ng7 Kg8 Qgh5 Qd1 Rg5 Qd3 Qhg4
Q3qn2/3nB2N/2bR1pN1/KBPq2Nn/1r5k/3p1qb1/p2rR3/Q1qNq3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 b4 Kf6 c4 Kg5 g4 h5 e4 a5 e5 d5 b5 f6 c5 d3 Kc3 h3 e6 h4 e7 a3 e8Q d4+ Kc4 a4 Kb4 d2 b6 a2 b7 d3 Qde2 d1Q Q8e4 a3 Q4f3 h2 Be3 h3 Bg2 Qe8 Bc1 Bd6 Qe1 Ne7 Nc3 Nd7 b8N Bb7 Bd2 Qe2 Nd1 Ng6 Qc6 Ngf8 Nf3+ Kh6 g5+ Kh5 g6 Ra4+ Kb5 Rb4+ Ka5 Ba8 Qg1 Qe1 Ng5 f3 g7 f2 g8N f1Q Ne7 Bg3 Ng6 Qf3 Bf4 Qd5 Qc8 Bc6 Bd6 Kg4 Rb1 a1Q Be7 a2 Qb7 Qb2 Qa8 Qc1 Rb2 Kh5 Re2 Qf3 Qd4 Rg8 Rf1 h1Q Qa1 h2 Rff2 Qd5 Re6 Qhf1 Bh3 h1N Rfe2 Qff3 Rd6 Rh8 Na6 Rh7 Nc7 Rh6 Nce6 Rh8 Ne5 Kh4 Nh7 Rg8 Bg2 Rgg4 Bh3 Rgc4 Bg4 Rc2 Neg5 Rd2 Bh5 Bh2 Bg6 Ng3 Bf7 Nh5 Ng6+ Kg4 Bg8 Bg3 Bf7 Qdf5 Bc4 Q5d5 Ne5+ Kh4 Ba6 Rc4 Bb5 Rb4 Ng6+
6n1/n5bp/RK2pB2/1BN1Q1Br/Qr1k1P1b/Brbq3R/1b1N3p/1q1b4 b - - 0 1 illegal: No possible last move
7r/r1bPRrnR/2k1bqBK/1p1Q2B1/p3Q1r1/N2pr3/1N2q3/Q3nQn1 b - - 0 1 illegal: No possible last move
2n1Bb2/3Pq2r/R1bpk3/Q4N2/1Bqr1BrB/1p1qn2R/1pQ4q/1qN1K3 b - - 0 1 illegal: No proof kernel
r4b2/1p5n/Bnq1nB2/3N1n2/Npp1RQ1Q/P1R1q3/K2kr2r/Q2n2Qb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Kd7 Kd2 Kc6 Kc2 Kd5 Kb2 Ke4 g4 c5 d5 f5 a3 h5 d6 h3 e3 c3+ Ka2 c4 g5 h4 d7 c2 g6 f3 g7 f2 Qd6 f4 Nf3 h2 Nd4 f3 Bb2 h3 Bg2 Kd3 e4 f1R e5 f2 e6 Nf6 g8Q Re1 e7 f1N e8Q Ng3 Qef7 Re2 Rg1 h1Q Qfg6+ Nf5 Qe5 h2 Qg4 Qe8 d8Q Be6 Nc6+ Nbd7 Re1 Bd5 Ne7 Nb6 Nc3 Nh7 Rac1 Kd2 Na4 Qc6 Bh3 Qf3 Qgf4+ Qe3 Qg1 h1N Bd4 Bg2 Nd5 Nf2 Qdh4 Nd1 Qg7 Bh1 Bf6 Rg8 Qh8 Rgg2 Bg4 Rh2 Bh5 Qe6 Be8 Qd6 Bb5 Qe6 Rb1 Qc6 Rb3 c1N+ Ka1 Rb8 Rc3 Ra8 Ba6 Nb3+ Ka2 Nc5 Qhg7 Nh6 Q7g6 Ne6 Qb1 Nf5 Qa1 Re8 Qhf2 Rb8 Q2h4 Ra8 Qhg4 Reg2 Qff2+ Qe2 Qfh4 Qf3 Re4 Qe3 Qf3 Re2 Qff4
nQb2bqr/P3Qr1N/1bp2b2/3kb3/K4Q2/1p1qN2p/RB3R1n/r1Q4B b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Kd6 a4 e5 d4 h5 Kd2 b5 Kc2 b3+ Kc3 h3 Kb4 c3 a5 c2 a6 e3 a7 e2 g5 e1B+ Nc3 b2 f5 b1Q+ Ka5 h4 d5 b4 f6 e4 g6 b3 g7 h2 f7 e3 Ba6 h3 Qd2 e2 Nf3 Bg3 Rf1 h1R Bb2 e1B Nh4 c1B Bb7 Nd7 Ng2 Nb6 Rf2 Nh6 g8Q Be5 Ra2 Qd3 Qc2 Be3 Qc1 Kc5 d6 Ng4 d7 Nh2 Bf3 Qg5 d8Q c6 Qe7+ Kd4 Be4 Rh7 Qh8 Qg8 Qhf6 Rb8 Qf4 Na8 Ka4 Bf6 Nd5+ Bc3 Qf1 Rh8 Qc1 Rb7 Qb8 Be5 Nf6 Kc4 Nh7 Bb6 Ne1 Rf1 Bh1 Bf6 Ng2 Kd5 Qg5+ Bce5 Qc1 B8g7 f8Q Rc7 Qb4 Rf7 Qfe7 Bf8 Qbf4 Re1 Qce3 Rb1 Qc1 Ra1 Ne3#
b1R5/n3rr1r/N1b4N/K1nkp3/1QR5/1PB1qq2/np2BpRn/b3Q2R b - - 0 1 illegal: No proof kernel
4R1n1/1N1r1q2/nBqb1r1R/K2p2b1/P1p1r3/Q1QnpN1b/4N3/1B2Nk1b b - - 0 1 illegal: No proof kernel
5Kb1/1nq2BB1/4b3/1BppPN2/1qBq1kRn/4R3/rpr2nqQ/bQ4N1 b - - 0 1 illegal: No proof kernel
1n1K2b1/q2B2bQ/1n1q4/pP3BB1/3BQ2q/pq1N1Rr1/k1pnR1rr/2N5 b - - 0 1 illegal: No possible last move
n2k3b/3q4/2r2pKp/1q2bB1P/2RB2bb/r1N1p3/1rNNQq1Q/1R2N1n1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Ke2 c5 h4 b5 g4 e5 d4 f6 a4 c2 h5 c4 d5 e3 Kf3 b4 Ke4 f3 d6 e2 g5 e1B a5 f2 a6 b3 g6 b2 a7 c3 g7 h6 Ra5 Nc6 Be2 f1Q Qd3 Nd4 Qe3 Qd7 Qd2 Kd8 Bg4 Ne2 Ra4 Ne7 g8N Nd5 Rc4 Bh4 Bf5 Bg7 Nf3 Ng1 Qh2 Nc7 Ne7 Qf2 Nbd2 b1Q Nd5 Qbb5 Bb2 c1R Ne1 c2 Nc3 Rg8 Ba1 Bh8 Bb2 Rb8 a8Q Rg3 Qa6 Na8 Qa2 Rb6 Qa6 Rb1 Ba1 c1B Bb2 Qe6 d7 Rc6 Ba1 Rb2 Qa2 Ke7 d8N Qd7 Ne6 Ke8 Nd4 Kd8 Ndc2 Rd3 Nf1 Bf4 Nd2 Bfg3 Qb1 Bf4 Qd1 Rh3 Qe2 Rf3 Na2 Ra3 Nc3 Bfg3 Be6 Bf4 Kf5 e4+ Kg6 e3 Bf5 Be5 Nef3 Nh3 Rb1 Ng1 Nfe1 Qd4 Bd3 Bg4 Bf5 Qd7 Nd1 Rba2 Bd4 Rb2 Nc3
kQK4b/1N2NNB1/3bp1q1/p2rrqQB/2bRn3/rq1RN1P1/3np3/4q3 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 d5 f4 Kd7 c4 Kc6 b4 Kb7 f5 h5 c5 e6 g3 h3 f6 h4 f7 d3+ Ke3 a3 Kd4 e3 Ke5 e2 b5 h2 b6 a2 Be3 h3 Bf2 d4 Na3 d2 Nc2 d3 Nf3 Rh5+ Ng5 Nf6 Bd4 Qe8 Ne3 Na6 Qc1 d1R Bg2+ Ne4 Bf3 d2 c6+ Kb8 b7 Nac5 Rb1 a1B Rb4 Nb3 Qc5 Be7 f8N Qg6 Re1 h1Q Nd7+ Kc7 Qb5 h2 Nc5 Kb8 Ra4 a6 c7+ Ka7 b8N Qf1 Nb7+ Bc5 Bc3 h1Q Rd4 Bd7 Qa5 Bb5 c8Q Bc4 Qcc7 Qf2 Rf1 Qh3 Bg4 Qe1 Rf8 Bb4 Rfd8 Qhf1 Rd3 Qff7 R8d4 Qfh7 Kf4 Bd6+ Qe5 Bb2 Nf7 Rg5 Bh5 Ba1 Kf3 Bb2 Qf4 Re5 Qg5 Ba1 Kg4 Qf5+ Kh4 Qhg6 Bb2 Rc1 Bc3 d1Q Bb2 a5 Bc3 Nbd2 Nc6+ Ka6 Ne7 Ka7 Bb2 Qb3 Bc3 Rd8 Bb2 Qff1 Kg4 Qh3+ Kf4 Ka8 Rd5 Bb4 Qf6 Rg5 Qf5 Qg4+ Ke5 Rc2 Bc3 Ra2 Rd7 Ra3 Bb2 Nc5 Kd6 Nce4+ Kc6 Qh3 Qff4 Rb5 Qg5 Qhf5 Bh8 Bf6 R7d6 Re5 R6d4 Re8 Kd7 Bc5 Qc6 Rd8+ Kc7 Rd7+ Kc8 Rdd5 Qc7 Bd6 Bg7 Nf1 Bh6 Bh8 Bg7 Nfd2 Qb8+
R1rq3N/nKQ4p/Bb2Bp1B/3N1r1Q/2R1b2B/4qpn1/r2qPq2/6bk b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Ke6 Ke4 c5 a4 b5 d4 b3 g4 h3 a5 f6 a6 f3 g5 b4 a7 h2 g6 b2 g7 c3 Ra3 c4 Qd2 b3 Qh6 c2 Bg2 c3 Bf1 Bb7+ Kd3 Kf5 Kc4 Kg4 Kb5 Kg3 d5 Nc6 d6 Nge7 g8B Nf5 d7 Bc5 Nh3 Bb6 Be3 c1Q Bc4 c2 Ng5 Qd2 Bh3 c1B Nc3 b1Q Nd5 b2 Nf7 Qe4 Qh5 Qed3 Bg4 Kg2 Bh6 Ng3 Be6 Q3e3 Rf1 Re8 Nh8 h1Q Ra1 Rc8 a8Q Qhg1 Qb8 Qgf2 Qc7 Rf8 Ra4 b1R+ Rb4 Ba8 Ka6 Na7 Bb5 Rb2 Rc4 Rg8 Rh1 Rc2 Rd1 Ba3 Ra1 Bac5 Ra5 Rg5 Ra2 Qf8 d8B Rf5 Be7 Qg8 Bd6 Qd8 Bdf4 Bc6 Bfg5 Rb2 Bh4 Kh1 Ne7 Be4 Nd5 Bd4 Kb7 Bdc5 Raa4 Ra2 Ba6 Qg5 Nf7 Qg1 Qe5 Nc6 Nh8 Qge1 Qc7 Bg1 Ra3 Qf2 Bb5 Qge3 Ra8 Na7 Ba6
2b4K/1r1pB1BQ/p4pbR/1qq2bR1/1n1Q2P1/B1b5/1n1NB3/1rnrkN2 b - - 0 1 illegal: No proof kernel
Bb2b2Q/1pbRn2K/q4RBP/2pkb3/6rN/B1qNq3/3p2rr/2B1Qn2 b - - 0 1 illegal: No possible last move
2rBB2r/1p2nNpb/1p2BNRb/1Qn3b1/P5K1/q2q3Q/1k1B3b/R3n2r b - - 0 1 legal: proof: e4 f5 d4 fxe4 g4 h5 b4 hxg4 b5 c5 b6 cxd4 Bh6 axb6 Bg5 Qc7 Bc1 Qd8 Ke2 Kf7 h4 Ke6 c4 Ke5 a4 d5 f3 g3 h5 e3 c5 g2 c6 d3+ Ke1 Kd4 c7 e5 f4 e2 Kf2 e1B+ Kf3 d2 h6 e4+ Ke2 e3 Kf3 e2 h7 Qe7 f5 Nd7 f6 Qa3+ Qb3 d1R f7 Nc5 Nd2 Be7 f8B Bf5 c8B Bg5 Nh3 g1B Be7 Bh2 Be6 Rc8 Ne4 Bed2 Bd8 Ne7 Nf6 Bg6 Rg1 e1N+ Kg4 Bh6 Bg2 Bdg5 Qb1 Kc3 Qb5 d4 Bc6 d3 Be8 d2 Rg3+ Ned3 Rg2 Rh1 Rg1 Ne1 Rg2 Rg8 h8Q Bc2 Qh7 Rh8 Qf5 d1Q+ Qf3+ Bd3 Bd2+ Kc2 Rg3 Bh7 Rg1 Be3 Ng5 Qe2 Nf7 Qed3 Qh3 Beg5 Kh5 Bgf4 Rg6 Bfg5 Qc6 Kb2 Kg4 Rg8 Qd7 Rh8 Qb5+
B1N2nkq/pRQ1Qrp1/3pb2N/bKb2qq1/rB1P1N1r/5N2/n7/rR6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 f6 cxb4 Nf3 exf6 Ng1 f5 Bg2 f4 Bh3 Ba6 Bf1 Bc8 h4 f5 e4 Kf7 Ke2 f3+ Kd3 g3 Kc4 a3 d4 g2 c3 a2 h5 f2 e5 f4 h6 b3 h7 b2 Be2 f1Q Nd2 b1R Qe1 f3 Nh3 g1Q Nf4 f2 Nf3 Bc5 Ba3 d6 Bb4 Be6+ Kb5 Nf6 c4 Na6 Qc1 Rb3 Rb1 a1B Rh5 Rf8 h8N+ Kg8 Nf7 Bc3 Rg5 Nd7 Nh6+ Kh8 Qc2 Rf7 Ng4 Nf8 Bd3 Qgg2 Be4 Kg8 Qc1 Rc8 Ba8 Ra3 Rh5 Ra4 Qc2 Bf5 e6 Bd2 e7 Be6 e8Q Be1 Nge5 Qgg5 Qe7 Qd3 Rh2 f1R Ng4 Qdf5 Qc1 Rh1 Rhb2 Rh4 Rb3 Bb6+ c5 Rc6 Bd2 Nb4 R3b2 Na2 Bb4 Ba5 Qc3 Ra6 Qc4 Bd5 c6 Be6+ Qc5 Bb6 c7 Bd2 c8N Bc3 Qd5 Bc5 Qdb7 Be1 Qbc7 Bc3 Ba3 Ba5 Rb3 Qh6 Bb4 Qh8 Qed7 Qdf6 Qe7 Q6g5 R1b2 Nc1 Bd2 Ra2 Rb1 Bab6 Kc6 R6a4 Rb4 Ba5 Rb7 R2a3 Kb5 Ra1 Bb4 Na2 Nh6+
2n5/1b2bp2/PkpQr1N1/r4R2/1Qb1qN1n/pRb4n/1bb3BQ/1Q2B2K b - - 0 1 illegal: No possible last move
RrR1r1nK/r2r4/RprQ2B1/QqrPp3/1b6/1Nkb3R/2p2N2/B1n2q2 b - - 0 1 illegal: No possible last move
B1b5/r2Q2p1/3bn1nN/1Nbrp2B/q1p2r2/b1K2k1R/1NP4r/1rQ3RN b - - 0 1 illegal: No possible last move
NNnQ3r/1k1Bp2r/1PN1n1n1/1n1b2qR/1p3b1q/2B3n1/4pKQ1/1n4NR b - - 0 1 illegal: No proof kernel
1QbN1n1b/QP4r1/8/1q4NN/q1p1KnB1/1n2RpB1/n5pn/kR1r1Nn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 h4 Kd6 e4 Ke5 b4 Kd4 d3 a5 e5 c5 e6 f5 b5 g5 b6 a3 h5 a2 b7 f3 e7 g3+ Ke1 c3 e8Q c2 Kd2 a4 h6 a3 h7 c4 Rh2 g2 Qde2 f2 Q8e6 g4 Qc6 g3 Qg4+ f4 Qe2 f3 Qce8 Nf6 Q2e6 Qd5 Nh3 g1N Nf4 Nh5 Bh3 Qb5 Qa6 Rg8 h8N Nd7 Bg4 Bg7 Nf7 Bh8 Ng5 Rg7 Qg8 Nf8 Qa7+ Ke5 Kc3 f1N Nd2 Rb8 Rb1 a1N Rb3 a2 Rb2 Nb3 Re2+ Ne3 Re1 a1Q Nf1 g2 Re2 Qaa4 d4+ Kd6 d5 Ke5 Bd2 c1N d6 Ra8 d7 Rb8 Nfe6 Nf4 d8N Ra8 Be1 Kd5 Ng3 Nf1 Re3 Nh2 Nf1 Rb8 Bg3 Ra8 Qb8 Ra6 Qa7 Rd6 Ne4 Ke5 N6g5 Rd1 Nf6+ Kd6 Qa8 Kc5 Nh5 Na2+ Kc2 Kb4 Qa7 N8g6 Qe8 Ka3 Qe5 Nf8 Qeb8 Nb4+ Kc3 Rdd7 Rb1 Ka2 Rb2+ Ka1 Qa6 Rd1 Qaa7 Nd2 Kd4 Nb3+ Ke4 Na2 Rb1+
1RNrRN1b/1K2B2P/BR3b2/pr1Q1b2/1R1q1kr1/r1n2p2/1n1Q1p1b/5n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Ke5 Kc4 d5+ Kb5 g5 b4 g3 c4 d3 h4 d4 e4 d2 c5 d3 h5 g4 c6 a3 c7 a2 h6 f3 h7 f2 Qe2 d1R Bd2 f4 Rh4 f3 Bg2 Nh6 Qe3 Bg7 Na3 Na6 Kc6 Bf5 c8Q Nc5 b5 Rb1 b6 Qd4 b7 Rb5 b8R Rd8 Bf1 g2 Qb7 g3 Bb4 d2 Rb1 a1B Ne2 g1B Nf4 d1N Qd2 g2 Ne6 Na4 Be7 Nab2 Nf8 Ng4 Rh6 Nge3 Nc4+ Kf4 e5 a6 e6 Bh2 Nd6 g1R Nc8 Bh8 Qd7 Bf6 Qd5 Nc3 Bd3 Rg4 Kc7 Ra5 Kb7 Ra3 Rg6 a5 Bc4 Ra6 Bf1 Rc6 Ba6 Rc5 Rh6 Nbd1 Rb6 Rb5 Rh4 Bb2 Bc5 Ba1 e7 Nb2 e8R Bh8 Be7 Bf6 Qe2 Nf1 Qd2+ Qe3 Q5d3 Bh8 Rh6 Re5 Rb4+ Ne4 Rb5 Na4 Rb3 Rb5+ Rb6 Baf6 Rb4 Nb2 Q2c2 Qc5 Qd7 Qd4 Qd5 Nc3 Qd2+
1K2NqNR/6Pr/2krp3/B1p5/n2n1b2/Q2b2bb/BN2rpQn/1R3n1N b - - 0 1 illegal: No proof kernel
4Q1k1/nKp1R3/2np3n/2B1Br2/P2Rp1N1/3q2B1/rQBbnr1N/1brb4 b - - 0 1 illegal: No proof kernel
b2R4/1p1p2NR/NB1N1bP1/Q1n3r1/1r3kn1/1bN2r1p/B3r1n1/2Q2qnK b - - 0 1 illegal: Other
1r2Nb2/2N1kn1N/4nP2/2r1b3/p2R2rq/B1pRb1NB/QQ4pq/Kb2r3 b - - 0 1 legal: proof: e4 b5 c4 d5 g4 dxc4 a4 bxa4 e5 h5 e6 hxg4 Be2 fxe6 Bd3 e5 Bf1 e4 h4 a5 b4 e5 d4 g5 Kd2 c5 Kc2 c3 f4 a3 b5 e3 b6 g3 b7 c4 h5 a4 h6 g2 h7 a2 d5 g4 d6 e2 d7+ Ke7 Rh4 e1Q Rh3 e4 Re3 g3 Qe2 Nc6 b8N Qc7 d8N Ra5 Nh3 g1R Nf7 Nh6 Rd3 e3 Nd6 Rc5 Ne8 Nf7 Ng5 Ncd8 Na6 Bf5 Ba3 Ne6 Nd2 Rg2 Rd1 a1B Kb1 c2+ Ka2 c1B Nde4 Be5 R1d2 Rg8 h8Q c3 Qh2 Rg1 Bh3 g2 Nh7 Qh4 Ng3 Rg4 Ka1 Rd1 Rd4 Bb1 f5 Rf1 Qc4 e2 Qa2 e1R R2d3 Be3 Qh1 Qb8 Nac7 Rf2 Qg1 Rb2 Qf2 Rb6 Nb5 Qd6 Nbc7 Rb8 Qfb2 Beg7 Nf1 Qh2 Ng3 Be5 f6+
3b1r2/1Bb2rrq/1QB1p3/K1p1NbB1/Q1p3R1/1rPb3B/N2nn2R/k2q4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 h5 fxe4 h6 d5 Qf3 gxh6 Qc3 h5 Qc5 h4 Qc4 dxc4 g4 Kd7 a4 Ke6 d4 Kd5 Kd2 c5 f4 b5 g5 h5 f5 b3 Kc3 e3 a5 b4+ Kb2 e2 g6 e1B g7 h3 a6 h4 f6 h2 a7 h3 f7 Nf6 g8B Bg3 Ra5 Ne4 Bd2 Bf5 Be2 e6 Bf3 Bc7 Bg5 Nc6 Rb5 Be7 f8Q Rh7 Rb8 Rf7 Bh7 Bf6 Bg4 Nd2 Qe8 Qd6 Qd7 Bfd8 Nf3 Rg7 Rg1 h1Q Ne5 h2 Bh3 Ke4 d5 Nd4 Rb6 Ne2 Nc3+ Kd4 Qa4 Qe4 Rg2 h1R Rg4 Rf1 Na2 Rc8 a8B Rf3 Rg2 Qh4 Bg6 Qh7 Be8 Bd3 Bec6 Rff7 Bab7 Qd7 d6 Ra8 Nc3 Bf5 Ka1 b2+ Ka2 b3+ Ka3 b1R Na2 b2 Rh2 Rb8 Rb3 Rf1 Rg3 b1B Rg4+ Rf4 Qb5 Rf8 Ka4 Rff7 Nb4 Kc3 Qb6 Kb2 c3 Bbd3 Na2+ Ka1 Ka5 Qe7 d7 Qd6 Kb5 Qd4 Qa7 Qg1 Qa4 Qd1 Ka6 Bf6 d8Q Rf1 Bc8 Rb3 B8b7 Rf8 Qb8 Bfd8 Qa7 Bg6 Qb6 R1f7 Ka5 Bge4 Rf2 Bf5 Rh2
1bQnBqNK/B2r2N1/2p2br1/q2N1P2/3N3R/n2k1p1b/1b2p3/Rq2Q1q1 b - - 0 1 illegal: No proof kernel
2nqrnb1/B1BBQ2P/KR6/n1Rp4/np4bN/2B2p2/1krb2Q1/b1N1q3 b - - 0 1 illegal: No possible last move
2r1qQQ1/n1n1k2p/pbq4R/1b5q/BRbq2r1/BRpP3N/2b3R1/1NK5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 b4 f5 g4 c5 e4 f3 g5 c3 e5 a6 e6 f4 e7 f2+ Ke2 h3 b5 c2 g6 a3 b6 a2 g7 c4 b7 h2 Ba3 c1Q Qa4+ Nc6 b8Q f3+ Ke3 Nf6 g8R Bf5 Qbb4 Bc2 Qb2 Rc8 Qab3 Na7 Bc5 Nd5+ Kd4 Nc7+ Ke3 Kd7 Qe5 Qe8 Rg2 Rg8 Nh3 Rg4 Ba3 Qd1 Bd3 f1B Qh8 f2 Bg6 Bg7 Qf8 c3 Qbg8 Bb5 Bd3 Qh5 e8R f1B Re4 Be5 Be2 Bd4+ Kf3 Qe1 Bd1 Bfc4 d3 Bb6 Rf4 Qe7 Re4 Qee8 Ke2 Be6 Rb4 Kd8 Rf1 h1Q Rf6 Qg1 Rh6 Qd4 Nd2 Kd7 Rab1 a1Q R1b3 Qc1 Nb1 Qcf4 Qh8 Qfd6 Qhg8 Qc6 Rb2 Bca4 R2b3 Kd8 Bc2 Bec4+ Kd1 Kd7 Kc1 Kd8 Qf5 Ke7 Qff8+ Kd7 Rb2 Bab3 Qf5+ Ke7 Qf2 Ba2 Ba4 Bab3 Qf3 Bd1 R2b3 Bc2 Qff8+
1Qr2rqn/K4pNr/BR3Q2/P1k1br1b/6N1/2n1Bp2/p1b2N2/qRN4b b - - 0 1 illegal: No proof kernel
q1b4b/Qnp1Q1Br/3k4/1Rq1Npq1/3qP3/1Np2n1r/2KbR1R1/R4B1b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 g5 Kd2 f5 h4 b5 e4 f3 d5 f2 a5 g3 a6 g2 h5 b3 h6 g4 h7 g3 a7 c3+ Kd3 b4 Rh2 b2 Ra6 b3 Ra2 Nf6 Qd2 Kd6 Be2 f1B Qd1 Ng4 Nf3 g1B Na3 b1Q+ Nc2 g2 Ra3 b2 Nd4 Qa2 Bh6 b1Q Nf3 Qb6 Ne5 Qg5 Na1 Na6 Rb3 Bg7 Rb5 Be3 Nb3 g1Q Rg2 Qc5 Qa1 Rb8 a8R Nh2 Ra7 Nf3 Ra8 Bf6 Bg7 Bd2 Ra7 Qa5 Kc2 Qgd4 Bd3 Qaa4 Re2 Bg2 Ra8 Rd8 h8R Bh1 Rhh2 Rh8 Rhg2 Rh7 Qa2 Qcc4 Qa1 Nc5 Qa2 Nb7 Qa3+ Qab4 Qa7 Qcc5 Bc4 Qa5 Bd3 Ke7 d6+ Ke6 d7 Kd6 Bh6 Bh8 d8Q+ Bd7 Qe8 Rd8 Bg7 Bc8 Re1 Rh3 Bf1 Rd7 Ree2 Qa6 Qb8 Qac6 Ra1 Qa6 Qf7 Qa8 Qa7 Re7 Qe8 Rd7 Bf6 Rdh7 Bg7 Qcb4 Qf7 Qbc5 Qe7+
rrQ5/2pb1B1q/2R2NPq/Rn1qqB2/2N1Q1K1/b2kB3/np4p1/4B1bb b - - 0 1 illegal: No possible last move
B4N1b/1KpQb1NN/4p1P1/RRqrp3/b3k3/r2q2bn/q1Q2B2/1N2q2n b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 dxc4 e5 g5 e6 gxh4 Qb3 fxe6 Qd1 e5 Ke2 Kd7 Ke3 Ke6 Ke4 h5 f4 a5 g4 a3 b4 a2 d4 c3 g5 h3 g6 h4 b5 c2 b6 a4 b7 h2 Qd3 h3 Qa6+ Nc6 b8N a3 Qd3 Nf6+ Ke3 Kd5 f5 e6 Qd2 Nb4 Qd3 Nh7 f6 Bd7 f7 Ng5 Bd2 c1B Ne2 Ba4 Ng3 Bg7 Qa6 Nd3 f8N Nf2 Qd3 Rh4 Nh5 Bh8 Rg1 h1Q Nbd7 h2 Ng7 Ngh3 Nh7 Rf4 Rg4 Qg1 Qc2 h1Q Ndf8 Rf3+ Ke2 Ra5 Be1 Bf4 Bg2 Bg3 Re4 Rb3 Kd2 Rbb5 Kc3 Qhh2 Bf3 Nh1 Bf2 Rc5+ Kb4 Qe1+ Nd2 Qhg1 Rb1 a1Q Rb2 Qef1 Nb1 a2 Bg2 Qd3 Re3+ Qe4 Ra3 Ra6 Rbb3 Qb2 Bf3 a1B Bg2 Qa2 Bf3 Bc6 Ra5 Bb2 Bg2 Ba4 Bf3 Kd6 Bg2 Qd3 Ba8 Qe7 d5 Bc1 Ra3 Bg5 Rb5 Rb6 Ka5 Qe1+ Nc3 Rb8 Ka6 Rd8 Nb1 Rc3 Kb7 B5h4 Ra5 Rd7 Rb3 Rd8 Rbb5 Ra3 Nd7 Qf8 Bg1 Qff2 Ndf8 Qc5 Bf2 Ke7 Ng5 Kf6 d6 Rd7 Nh5+ Kf5 Ngh7 Ke4 Ng7 Rf7 d7 Be7 d8Q Rf3 Nd7 Rf8 Qc8 Rd8 Ndf8 Rd5 Qd7
Q2B3n/RPp1rrp1/Nb2bq1R/1Q1b1pNK/7n/b1k1q3/5R2/1B1R1n1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Ke7 e4 Kf6 h4 Ke5 b4 Kd4 b5 a5 h5 f5 e5 a3 b6 a4 h6 f3 Kg3 a2 h7 c3 e6 f2 d3 c2 e7 a3 Kh4 g3 b7 g2 Nc3 Qe8 Na4 Nd7 Rh2 Ne5 Qd2 Nf3+ Kh3 Be6 Qh6 Nh4 Nc5 Kc3 Rb1 a1Q d4 a2 Bb5 f1B d5 Bc4 d6 Bcd5 Nf3 g1B Bg5 c1N d7 Nd3 Na6 Bb6 d8R Nf2+ Kg3 Rb8 Rd1 Nh1+ Kf4 Qb2 Bd3 a1N Rf2 Nb3 Bb1 Nd2 Qg6 Nf1 Qf6+ Bd4 Qe5 Nh6 Bf6 Ra8 Kg5 Nf7+ Kh5 Rg8 Ng5 Nh8+ Nf7 Qb6 Qe2 Qec6 e8Q Ba3 Qb5 Rf8 Ng5 Rf7 Rd6 Qa7 Bd8 Bb6 Qf8 Qc4 Qfe8 Qd4 Qg8 Qf6 Qge8 N8g6 h8R Rc8 Rh6 Nh8 Be7 Rd8 Qg8 Rd7 Qa8 Ba2 R6d4 Bad5 Bd8 Rde7 Rdf4 Ba5 Ra4 Qe3 Nc5 Bb6 Ra7 Bb4 Na6 B4c5 Rfd2 Ba3 Rf2
1rRn3q/4Nn1b/3B3B/1Rp5/1nP3p1/1qR1QpNr/2p1bKQr/Rkb5 b - - 0 1 legal: proof: g4 d5 f4 h5 b4 hxg4 c3 e5 b5 exf4 b6 d4 Bh3 d3 Bg2 axb6 Bd5 b5 Bb3 b4 Bc2 dxc2 a4 Ke7 h4 Ke6 e4 Ke5 c4 Kd4 e5 Kd3 h5 b5 e6 f5 e7 g5 e8Q b3 a5 b4 h6 g3 a6 b2 h7 b3 a7 f3 Qc6 f4 Qc5 f2+ Kf1 g4 Qc6 Ba3 Qe1 Nh6 Ne2 Bf5 Rh2 Nf7 Qg2 Nc6 Rh4 Rb8 Nbc3 b1N Na2 Nc3 a8R Nd5 Nac3 Ndb4 Rh5 b2 Rg5 b1Q Nd5 Qb3 Ne7 Qc8 Ra6 Ncd8 Rf6 Be4 Rb5 c5 Rh6 Bf5 Rh3 Bg6 Bb2 Be4 Be5 Bc1 Bd6 Bf5 Nc3 Bg6 Ne4 Kd4 d3 Bf5 Ke2 Bg6 Qd2 f1B+ Ke1 Be2 Qc3+ Ke3 d4+ Bd3 d5 Bf5 Qe5 Be2 Nd2+ Kd3 Nf1 Be4 Qg5 Kc3 Qh6 Kb2 Qe6 Rf8 h8R Bh7 Qe3 Rg8 Qgg1 g2 Ng3 Rg5 Kf2 Rh5 Qh1 g1R Qg2 Rh1 Re8 Qc6 Rh8 Rh2 Rg8 Nb7 Rc8 Qe8 Bc7 Nbd8 d6 Bf3 d7 Qh8 Bd6 Be2 Ra4 Nb7 d8B Kb1 Ba5 Nbd8 Ra3 Na2 Bc3 Nb4 Bg7 f3 Bh6 Qa4 Rc3 Qb3 Rh4 Rd5 Rh3 Rd1 Rh5 Rdh1 Rd5 Rh3 Rd1 R1h2 Nc6 Ka2 Bdf4 Bd2 Ra1+ Kb2 Ne7 Bc1 Ra7 Kb1 Bd6 Bhd3 Ra4 Bh7 Ra1+
3KR1q1/2RbnQ2/1r1p1BPp/1Q6/r1rQ2pN/b1b5/1p1N2kq/1B1Qnn2 b - - 0 1 illegal: No proof kernel
2NR3n/BKb2BQk/2p2r1n/R2B2pr/4b2P/2p3qp/qQ1b1rq1/2B4N b - - 0 1 illegal: No proof kernel
1Qq2r2/1Q1p2n1/2n1N3/n1N1p1Bk/2NrB2p/rP1q1b1K/Rp4R1/2b2Nq1 b - - 0 1 illegal: No proof kernel
1R6/1Q1p3K/2nR1RPb/p1rr3N/n2k3p/3q1q1b/2p2N1b/1RrQBBn1 b - - 0 1 illegal: No proof kernel
KQ1n3Q/1rp4q/Bp4qR/qQ1b4/4N3/1PQB1rb1/Rbp2n1p/N1r1k3 b - - 0 1 legal: proof: h4 d5 e4 f5 c4 fxe4 b3 dxc4 h5 a5 h6 a4 Rh5 a3 Bb2 axb2 Rh3 gxh6 Rh2 h5 Rh1 h4 Ke2 Kf7 Ke3 Kf6 a4 Kg5 d4 h5 g4 e5 f3 c3 a5 h3 f4+ Kh4 g5 Kg3 d5 h4 d6 h2 a6 h3 g6 b6 a7 Qd7 g7 Nc6 f5 Bb7 f6 Nd8 f7 Nh6 g8B Bg7 f8Q Bd5 Bb5 Rb8 a8Q Rb7 Na3 b1Q Qd3 Bf6 Qc2 Qh7 d7 Bg7 Bd3 Ng4+ Ke2 e3 Qc5 e4 Qb8 Qg6 Qb5 Nf2 Nf3 Bd4 Be6 Rf8 Ng5 Rf3 Ra2 Be5 Qd2 Qa1 Nc2 Bh8 Ra8 Qa5 Na1 c2 Ra7 Bb2 Qc3 Qb4 Ra2 Qa5 Ke1 e2 Kd2 e1R Bg4 Nc6 d8Q Rc1 Qh8 Nd8 Bc8 e3+ Ke2 Ra7 Ba6 Rb7 Ne4+ Kg2 Re1 h1Q Rf1 Qh2 Re1 Qf4 Rd1 Qff7 Rh1 Qfh7 Bc4 Nd1 Kd3 e2+ Kd4 e1B Bd3 Bg3 Rf1 Re3 Rf6 h2 Re6 Nf2 Rf6 Bg8 Re6 Rf3 Kd5 Nf7 Kc6 Kg1 Kd7 Nd8+ Kc8 Bf7 Rc6 Bd5 Rf6 Qg5 Rh6 Qgg6 Nd6 Kg2 Ne4 Ra7 Qb7 Kg1 Kb8 Kg2 Qc8 Rb7+ Ka8 Ng4 Nd2 Kf2 Qb8 Ke1 Qcc6 Nf2 Ne4 Qhg8 Qcc5 Q8h7 Qcc3+
1N5q/p1b1p1R1/B2q1r1Q/2rnq3/4Npk1/6PN/QprNb2K/n2R1bB1 b - - 0 1 illegal: No proof kernel
1B1NQ2R/8/1bK1QpB1/1pp1rn2/2R3n1/n4NP1/2pbkNn1/1b1nN1rq b - - 0 1 illegal: No proof kernel
2B5/1b2K1nQ/q2p1R2/b2p2rk/1B1NpnNn/N7/P1Q1pnrR/3N1bn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 d4 gxh4 e5 c6 d5 cxd5 e6 fxe6 Nd2 e5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 e5+ Ke3 h5 g4 b5 f4 h3 c4 h4 c5 h2 c6 b3 c7 h3 g5 b2 Qd3 b4 f5+ Kh5 f6 b3 f7 Ne7 g6 Na6 g7 Bb7 g8Q Ng6 c8N Nf4 Qd2 Qf6 Qdg2 Nc5 Bd2 Qa6 Q8g3 Rg8 Bc3 Rg5 Nf3 Nce6 Qd2 Ng7 Na3 b1N Nd6 b2 Nf5 Bb4 f8N d6 Nd7 Rg8 Qdf2 Ba5 Qc2 Nd2 N3d4 b1N Bb4 Nf3 Bd3 Nbd2 Raf1 Ng1 Qh4+ Kg6 Nf6 Ndf3 Qh8 Nh4 Bb5 Rg2 Bd7 Kg5 Ng4 Kg6 Nfh6 Kh5 Nf2 Rg5 Qh7 Rg2 Kd2 e3+ Kc3 e4 Nd1 e2 Bc8 Ne8 Kb3 R8g5 Ka4 Ng7 Rf2 Nfe6 Rf5 Nf4 Rf6 Ngf3 Re1 h1N Rg1 Nf2 Rh1 Ng1 Rh2 Qa7 Rh1 h2 Kb5 Ba6+ Kc6 Bb7+ Kd7 Qa6 Ke7 Ngf3 Rg1 h1B Re1 Ng1 Rf1 Rh2 Re1 Bg2 Rf1 Bh3 Re1 Rhg2 Rf1 Ngf3 Rh1 Ng1 Rh2 R2g3 Rf7 Bf1 Rf6 Rg2 Ng4#
b6r/3B3b/KnBpP1kN/p1p1R3/7B/bbqr3Q/pR1QbN2/2B2nr1 b - - 0 1 illegal: No proof kernel
Rb3R1B/5N2/1pr1nprq/r3nppQ/k2Qrrb1/3NBRP1/n6R/7K b - - 0 1 legal: proof: f4 c5 b4 h5 d4 cxd4 f5 a5 g3 axb4 f6 exf6 Nf3 h4 Bh3 f5 Bg2 h3 Ng1 hxg2 Kf2 f6 a4 d5 e4 Kd7 h4 Kc6 c4 g5 e5 b6 c5 b3 e6 b2 h5 d3 a5 Kb5 e7 d2 e8R d4 a6 d3 h6 Bb7 a7 Nd7 c6 Ne7 h7 Rg8 h8B Nc5 c7 Ne6 c8R Bf3 Qf1 d1N+ Ke1 Bg4 Qf2 Ng6 Qd2 Nc3 Kf2 Bd6 Nf3 g1R Ne5 Rf1+ Kg2 Rf4 Ra3 Na2 Rh2 Rg7 Rg8 Qf8 Kh1 Re4 Qc3 d2 Qd4 Rf4 Rf3 d1R+ Qg1 Re1 Nc3+ Ka5 Nd1 b1R Nf2 Ka4 Nfd3 Ree4 Qd4+ Rb4 Be3 Rc4 Nc6 Ne5 Nd8 Rf7 Rb8 Qh6 Rf8 Rg7 Rc8 Rb8 a8Q+ Ra7 Rf7 Ra5 Qa7 Rb7 Rf8 Rg7 Ra8 Bb8 Qf7 Rg8 Qh5 Rg6 Qd5 Rc8 Nf7 Rc6 Qd4+
bB2QbbB/2RKQ3/6kp/3npN2/1q1rNBB1/1pn5/1bP1p3/1R1rr1n1 b - - 0 1 illegal: No proof kernel
b1B4q/R4R2/3bBpk1/b2N1nnp/3p1BnQ/p3B1P1/3Nb1K1/rr2rQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 a5 c4 d5 e4 h5 b4 h3 c5 f3 g3 f6 b5 Kf7 e5 a3 c6 d3 e6+ Kg6 c7 d2 b6 d4 e7 a2 b7 a4 Ba3 h2 Ne2 Na6 b8B Nc5 Bc1 Ba6 c8Q Ne6 Qb3 d1N+ Ke1 Ne3 Kf2 Ng5 Qd1 Nh6 Nec3 Nhf5 Bf4 Be2 Nd2 Rg8 Rg1 h1B Bh3 Ra7 Re1 Ng4+ Kg1 Rb7 Qc6 Rb1 Qe4 Rg7 e8B+ Rf7 Qd3 Bd6 Bd7 Qh8 Bc8 Re7 Nd5 Re8 Qe4 Bg2 Nb3 Re5 Bce3 a3 Nd2 Re6 Rf1 Rb7 Qeb1 Nh2 Nc7 Bd3 Bf2 Nh6 Re1 Re3 Bhd7 N2g4 Qbc1 Rb5 Rb1 a1B Rb2 Rb8 Rb7 Nf5 Ra7 Bc3 Re2 Re8 Re7 Ba5 Rf7 Re2 Qc4 Bh1 B2e3 f2+ Kf1 Ba8 Be6 Rb7 Kg2 f1R+ Bf2 Rb2+ Nd5 Ra2 Qdc1 Ra1 Qa6 Rh1 Qg1 Bc4 Qh2 Rhb1 Qh4 Ree1 B2e3 Bb5 Qb6 Ba6 Qb4 Bb5 Qc4 Ba6 Qf1 Bd3 Rh7 Be2 Rhf7
6Rr/BQ3nqQ/1n1p1r2/1pB2b1p/1n1r4/b3KbpP/1R6/1QNkQr1N b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 e5 g6 e4 Bd3 exd3 Nc3 fxg6 Nb1 g5 Qe2 g4 Qd2 Be7 Qd1 Bf8 Kd2 Ke7 a4 Ke6 f4 Kf5 c4 Ke4 c5 h5 h3 b5 c6 g5 f5 g3 c7 g2 a5 b3 a6 b2 f6 g4 a7 g3 f7 Qg5 Rh2 Qg7 Ne2 Kf3 e4 g1R e5 Ba3 f8B Rf1 e6 Na6 e7 Nb4 e8Q Nh6 Bc5 d6 Nbc3 Bf5 c8Q Nf7 Qcd7 b1R Qee7 Raf8 Ne4 Rb3 a8Q Rc3 Qe1 Rc4 Kd1 d2 Qab7 Ke3 Qh4 Kf3 Nf2+ Ke3 Nh1 Kd3 Ng1 Kc3 Ke2 Kc2 Bb2 d3+ Ke3 Rd4 Ne2 d1B Nc1+ d2 Qg5 Bf3 Qg6 Ne5 Qdc7 Rf6 Bc3 Nf7 Qd7 Bb2 Ra8 Ba3 Rd8 Rg4 Rg8 Rd4 Qf2 Kd1 Ba1 Rf4 Bad4 Rh4 Ba7 Rf4 Bdb6 Rd4 Qe1+ Kc2 Qe8 B5e4 Qe6 Bf5 Bc5 Bc6 Ke2 d1N Qh7 Nb2 Qee7 Na4 Ke3+ Bg2 Qe6 Nb6 Qa2+ Bb2 Qc3+ Kd1 Qb1 Bf3 Rg2 Ba3 Re2 Na8 Rb2 Nb6 Qe1+
6n1/nr1p2p1/r1B3bk/1QnpPRQr/1b2N3/2N2Rp1/N1N1n3/K1b1B1q1 b - - 0 1 legal: proof: f4 b5 g4 e5 d4 exf4 a4 bxa4 d5 h5 d6 hxg4 Nf3 cxd6 Ng1 d5 Kd2 a5 Kc3 f5 e4 Kf7 h4 Kg6 b4 g3 Kb2 f3 c4 f2 b5 f4 b6 f3 b7 Qb6+ Qb3 Ra7 e5 Nc6 b8N Ba6 c5 Rb7 Bb5 f1R Bd2 f2 Ra3 Rh5 Nc3 Na7 c6 Bb4 c7 Ra1 c8N f1N Nge2 Nh2 Nc1 Nf3 Nd6 Ng1 Be1 Ne2 N1a2 Qg1 Bc6 Bd3 Na6 Kh6 Qc4 Bg6 Nde4 Rb6 Qb5 Rb7 Rb3 a3+ Kc2 Qd4 Rf1 a4 Rf4 Qg1 Rf5 Be7 N6b4 Bc5 Nc1 a2 Kb2 Be7 Nc2 Bb4 Nd3 Rc1 Ra3 a1N Ka2 Rd1 Nc1 Nb3 Kb2 Nc5 Ka1 Rd3 N1a2 Rd2 Nb1 Rd4 Raf3 a3 Nbc3 Ba5 Re3 Ra4 Rd3 Bb4 Rdf3 Rg5 h5 Ra6 Rf1 Kh7 h6 Rh5 Nc1 a2 R1f2 Be8 R2f3 Kg6 h7 Kh6 Rd3 Bf7 Rdf3 Bg6 h8Q+ Bh7 Kb2 a1B+ Kb1 Bb2 N1a2 Bc1 Ka1 Nf6 Qe8 Bg6 Qd8 Ng8 Qg5+
K1B4R/B1pRqnk1/5p2/rnpQ4/6Qr/rb1N1B1b/P4pbb/2NBn3 b - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 b4 axb4 c5 g5 c6 gxh4 Ba3 dxc6 Bc1 c5 Kf2 b5 Kf3 h5 Ke4 b3 g4 f6 d4 Kf7 d5 b4 g5 h3 d6 f3 Kd5 h2 e4 h4 d7 b2 g6+ Kg7 e5 b3 e6 h3 e7 f2 e8B Nc6 Bg2 Rb8 Bf3 Ra8 Ne2 Nd4 Nbc3 b1R Nf4 b2 Bd2 Nh6 Nd3 Ra3 Ne2 Nf7 Nec1 Bd6 Ba5 Qe7 d8Q Nc2 Kc6 Ne1 Bb6 Rh4 Ba7 Be6 Kb7 Bb3 Bd7 Ra5 Rg1 h1B Bc8 h2 Ka8 Bg2 Rh1 Bh3 Qe2 Bf4 Qd5 Bd6 Qee4 Ra3 Qg4 Bg3 Rf1 h1B Bd1 B1g2 Rh1 Bh2 Bf3 Kg8 g7 Kh7 g8B+ Kh6 Qgd4 Kg6 Bh7+ Kg7 Bd1 Ra5 Be4 Ra3 Bef3 Ra5 Ne2 Rc1 Qa4 Rc3 Nec1 b1N Qb4 Na3 Qg4+ Kh8 Rb1 Nb5 Rb2 Kh7 Re2 Kh8 Re6 Kh7 Rd6 Kh8 Rd7 Kh7 Qge6 Kg7 Qg4+ Kh6 Qde6 Bf4 Rh2 Bc4 Ba6 Rh5 Rd6 Rca3 Qe5 Bb3 Qgf5 Bg4 Rd7 Kg7 Bc8 Rh8 Rh4 Bh2 Qd5 B4h3 Qf4 Rh5 Qa4 Re5 Rh5 Re4 Rh8 Rh4 Qg4+
3N2B1/Q1bb2b1/4RQb1/Nk1r1p2/1prp1p1b/2qP4/1R2n1K1/1QB1qQn1 b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 f5 g4 b5 e4 d5 a4 Kd7 d3 Kc6 e5 h5 a5 c2 a6 d4 a7 h3 g5 h2 g6 h4 e6 h3 g7 Nd7 e7 Ne5 Be3 c1B Qe2 Bd2 e8Q+ Bd7 Ra4 Nf6 g8Q Nh5 Bg2+ Nf3 Ra1 Ba5 Kf1 b4 Qga2 Bg7 Bd2 Qc8 Na3 Ng3+ Kf2 Kb6 Rf1 c5 Qb1 c4 Bc1 c3 Qf8 c2 Qe1 Qc3 Qfe7 Rhc8 Be3 c1B Nc4+ Ka6 Qe5 Bd2 Qf6+ Rc6 Qed1 Bc7 Re1 Rb8 Qe2 Rb5 Na5 Re5 a8Q+ Kb5 Qed1 Rc4 Qa7 Be8 Re2 Bg6 Qe1 Bc1 Rb2 Bd2 Nb7 Rec5 Ne2 Re5 Rf1 h1Q Nc1 h2 Nb3 Rec5 Qe2 Re5 Rc1 Qd1 Qf1 h1B N3a5 Ng1 Bd5 Bg2 Be6 Bc6 Bf7 Rd5 Nd8 Bd7 Bg8 Be1+ Kg2 Bf2 Rcc2 Qde1 Re2 Bb6 Bd2 Bc7 Re5 N3e2 Bc1 Bh4 Re6
rBq1r1R1/BRbB4/1Q1Q1p2/1KBN3n/1p4nP/p2p1r1r/2b3k1/q1N1r3 b - - 0 1 illegal: No proof kernel
1bK2NRq/2R3N1/1p3PN1/2p1qQ1q/1q2b2n/Bp6/pQ1N2q1/rB1r1n1k b - - 0 1 illegal: No proof kernel
Q3n1Q1/b7/p1BQ2bN/2PK1Q1b/3pn2R/1pqRB1b1/1p2bN2/krr3q1 b - - 0 1 illegal: No proof kernel
4Q1N1/r1B1r2b/nbKR4/b3R2p/k1b4R/2qpp1Q1/2P1B1Rp/nrq2N2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 d5 g4 Kd7 f4 Kc6 a4 b5 g5 e5 a5 h5 f5 h3 a6 h2 a7 d3+ Ke3 d4+ Kd2 e3+ Ke1 d2+ Ke2 b3 Kf3 b4 Ke4 b2 f6 b3 f7 d3 g6 Kb5 g7 e2 Na3+ Ka4 Nf3 e1B Nd4 b1B Nc4+ Ba2 Ne3 b2 Qg4 b1R Nc6 d1Q Ba3 Na6 Be2 Nh6 g8R Rh7 Ne7 Ba5 Bd6 Qc1 Qg3 Nf5 Nf1 Nd4 Bc7 Nb3 Rg5 Rg7 Ng8 Qf6 Kd5 e4 Rg1 e3 Rg2 Bc5 f8Q Bcb6 Re5 Re7 Qf7 Qg7 Kc6 Bf5 Qf8 Bh7 Qe8 Rb8 a8R Rb7 Rd8 Ra7 Rd6 Qf6 Rf5 Qc3+ Rc5 Rb2 Rb1 Na1 Rc4+ Rb4 Rc5 Bc4 Re5 Rb3 Rb2 Ra3 Rbb5 Rb3 Rbd5 Rb2 Rd4 Rb1 Rh4
N4qB1/1Q1qrqRQ/1R4N1/2k2Qnp/4p3/pb5p/3nqbQP/2r2bBK b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Qf3 fxe6 Qf4 e5 Qg3 e4 Qh4 gxh4 c4 h5 b4 a5 f4 e5 Kf2 Ke7 g4 Kd6 Kg2 e3 f5 d3 b5 a3 g5 e2 f6 e1Q f7 e4 g6 a4 b6 d2 g7 d1B b7 a2 Nh3 a3 Nc3 Rh7 Bf4+ Kc5 Ng1 d5 Rb1 a1Q Nf3 d4 Nd5 d3 Rb6 d2 Nc7 Nd7 b8Q Bb3 Qa7 d1Q Ne5 Ngf6 g8Q Ba6 Rg1 h3+ Kh1 Qa2 Rg7 Qee2 Ng6 Rc8 Na8 Ne5 Be3+ Q1d4 Bg1 Nf3 Qd7 Nd2 Qg4 Qdf2 Qg2 Qd7 Qh8 Bd6 f8Q Rc6 Qc8 Bg3 Qb7 Rc7 Rg8 Rf7 Rg7 Nh7 Qg8 Ng5 Qh7 Qd1 Be2 Re7 Bg4 Qf3 Be6 Qf8 Bg8 Qe3 Qh8 Bf2 Qh7 Kd4 c5 Bf1 c6 Kc5 Qf3 Rc8 c7 Qe2 Qg4 Qa1 Qg2 Qaf6 Ne5 Q6f7 Ng6 Rb8 Qa7 Rb7 c8Q+ Rc7 Qab8 Kd4 Qcb7 Rc1 Qf4 Kc5 Qf5+
Q7/b1NRn1r1/r1p3Rb/qq6/1BR1p3/Q1P2k2/1B1pp2K/rn1rNbR1 b - - 0 1 illegal: No proof kernel
2b4b/R1N2NnN/p3BbNK/p1p2bn1/1q1nP3/5R1p/q3k1rQ/1Q1r2B1 b - - 0 1 legal: proof: f4 d5 h4 g5 a4 gxh4 c4 dxc4 f5 b6 a5 bxa5 f6 exf6 Nf3 f5 Ng1 f4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 b4+ Kd4 g4 h5 b5 c5 d3 f5 g5 a6 g6 h3 b6 h2 b7 c3 g7 c2 Qd2 h4 Ra3 Ne7 g8N Qd5 Qg2 Qa2 Qh3 Bg7 Be2 Nbc6 b8Q Bf6 Nh6 Rd8 Bd2 c1B Nc3 Bb2 Nd5 Rg8 Bd1 Rg2 Ng4 Ra7 Ne5 Rd7 Qg3 Ba1 Nh3 Bh8 Re1 h1N Ng5 Nf2 Nh7 Nh3 Rf1 Rd6 Ng6 Bc3 Rf2 Ng5+ Ke2 h3 Bb3 Bb2 Be1 f3+ Kd2 f4 Nc7 Nf5 Qh2 Rd8 Be6 Ng7 Rb3 Rd6 Rb7 Rd8 Ra7 Rd5 Re2 f2 Re3 f1B+ Bf2 Be2 Bg1 f3 Qb7 f2 Rf3 Bd1 Qb5 Ba4 Ke2 Kc3 Ke3 f1Q Kf4 Kd2 d4 Qfb1 Qb8 Rd8 d5 Ke2 d6 Bf6 d7 Nd4 Qb7 Qb4 Qb6 Rf8 d8N Bad7 Nf7 Rd8 Qb8 Qbc4 Qb1 Qb4 Bb3 Bf5 Be6 Rf2 Kg3 Rg2+ Kh4 Ne8 Kh5 Ng7+ Kh6 Nc6 Bf2 Rd1 Be3 Nd4 Bg1
1r1Q3K/r6N/p1Pnkp1B/1q1N4/2Nqb3/pBb2R2/1pN4R/qnQn3q b - - 0 1 illegal: No proof kernel
2n4k/1B1P2q1/r1B5/2Bn1BpK/RbqnNr2/qNpbp3/2R2Q1p/4n1Q1 b - - 0 1 illegal: No proof kernel
1r1r2n1/N2p4/n2r3N/Q1pN3R/1np4p/b1Pq2B1/3R1BQK/Nn1qkb2 b - - 0 1 illegal: No possible last move
2N1RKnQ/R1Pq3r/pn1B1N2/rQ5B/1p3qb1/2nbB3/3Bp2p/4bnk1 b - - 0 1 illegal: No possible last move
1KNnk3/N1p2bQN/2B1r3/q1bn1rb1/3qN1pP/1pB4R/Q3pb2/R1r5 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 g5 Ke3 e5 h4 b5 d4 g3 f4 c3 a4 g4 f5 b3 a5 g2 d5 c2 f6 b2 a6 b4 a7 b3 d6 Bd7 Nh3 g1R Nc3 b1Q Bb2 c1B+ Qd2 Rh6 Bg2 Ne7 Ng5 Qa2 Rh3 Be6 Nh7 Qa5 Bh1 Nbc6 f7+ Kd7 Bg2 Rh5 Bh1 Rf5 Bg2 Rb8 a8N Rb6 Bf3 Bg7 f8Q Bf7 Qg8 Bf8 Qg7 Ke8 Bh1 Ra6 Nb6 Rd1 Nc8 Nd5+ Ke2 e3 Kd3 e4+ Kc4 e2 Bg2 e3 Ne4 e1B Bc3 e2 Qa2 Qa3 Kb5 Bg5 Bf3 Rc1 Bh1 Qf6 d7+ Kd8 Bg2 Bf2 Bh1 Qd4 Bg2 Na5 Bf3 Rg6 Bg2 Bd6 Ka6 Nc6+ Kb7 Re6 Bf3 Qa5 Bh1 Ncb4 Kb8 Bf8 Nb6 Ke7 d8N Ke8 Nc6 Bc5 Na7 Nc6+ Kc8 Nd8 Kb8 Qd3 Nbc8 Qd4 Nd2 Nf6 Bb7 Nd5 Ne4 Ree5 Ba8 Re6 Bc6+
r1N1K2Q/1pp1P3/q1n1b1pN/2pn1k2/3q1Bn1/RRN3qB/1nN3r1/4b1Q1 b - - 0 1 legal: proof: f4 a5 g4 e5 c4 exf4 b4 axb4 c5 h5 c6 hxg4 Na3 dxc6 Nb1 c5 Kf2 Ke7 h4 Ke6 a4 f5 e4 g6 d4 f3 Ke3 b3 Kf4 b2 e5 f2 a5 g3 d5+ Ke7 Kg5 g2 e6 f4 d6+ Ke8+ e7 Kf7 h5 Ke6 a6 f3 d7 Bg7 a7 Nc6 h6 Nf6 h7 Nd5 Na3 b1N Rh3 Nd2 Nc2 Bc3 Ra3 Nc4 Ne2 Be1 Nc3 Nb2 Bf4 g1Q+ Bg2 Rf8 h8Q f1N Rg3 f2 Bh3+ Rf5+ Kh6 Qg2 Kg7 Nh2 Qd4 f1Q Qg1 Ng4 Rf3 Rb8 a8N Rg5 Nb6 Kf5 Kf7 Qb5 Qh6 Qh8 d8N Qd4 Ke8 Qg3 Qh8 Qa6 Nf7 Be6+ Nc8 Ra8 Nd1 Rh5 Rfb3 Rh4 Nc3 Rh6 Bg2 Rh2 Bh3 Rg2 Nh6+
2N1b3/pQR1QBN1/3b1nPb/r1B1q2p/QRKp2rp/2Q5/kb6/nq3n2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 c4 Ke6 g4 d5 b4 a3 f4 e3 Kd3 a2 g5 e2 c5 e1B c6 Nd7 c7 Nh6 b5 Nf5 b6 Bc3 b7 Qe8 b8Q Ng3 Nf3 Bb2 Nc3 Nf6 Bd2 Bd7 c8Q Bh6 Rb1 a1N Bg2 Nf1 Qb4 Qh5 Qcc5 Rag8 Be3 Be8 Qb7 Rg7 Qa5 Kd6 f5 e5 Nb5+ Kc5 Qac7+ Kb4 Nd6+ Ka3 Qc3+ Ka2 Nc8 Rhg8 Rh2 Rc7 Bh1 Rc5 Rc2 Ra5 Bg2 Qg6 Bh3 Qg7 Bg4 Qe7 Bh5 Qc7 Bf7 e4+ Ke2 Qe5 g6 Rf8 Bf2 e3 Kd3 e2 Ng5 e1B Ne6 Bed2 Ng7 Bdf4 Bg8 Rf7 Be3 Rc7 Bf7 Rc4 Bf2 Bhg5 Rcc1 h5 Bg1 Bh6 Qa4+ Ba3 Qe1 Rb4 Rc7 Bc1 Rb3 Bb2 Qc3 Rc4 Qac6 Bf8 Rb4 Bd6 Qa4+ Ba3 Qd2+ Rc2 Rb3 Nd7 Qg5 Rg2 f6 Rg4 Qab5 Bb2 Qe3 Ra6 Be6 Ra5 f7 Nf6 Ke2 d3+ Kf3 d2 Ke2 Rg2+ Kd3 Nh7 f8Q Bc1 Qe7 Bb2 Rb4 Nf6 Bf7 d1Q+ Qd2 Rg4 Bc5 Qde1 Qc3 Qc1 Ne6 d4 Kc4 Qce1 Ng7 Qb1 Qa4+
k2N2Br/pNpq1nRR/q1pq1Q2/p1Qb4/2b3NK/1n1rb2P/4N3/2B4q b - - 0 1 legal: proof: f4 h5 c4 e5 a4 exf4 g4 hxg4 c5 b6 a5 bxa5 c6 dxc6 Kf2 Kd7 d4 f5 b4 g5 e4 g3+ Kf3 g2 h3 Bh6 d5 Na6 b5 Nc5 b6 Nb3 Ne2 g1Q b7 Qd4 b8Q g4+ Kg2 g3 e5 Qf6 Ra4 Qd6 e6+ Kd8 Kf3 g2 Qb4 g1Q e7+ Kd7 Rh2 Qh1+ Rg2 Qg7 Kf2 f3 e8N f4 Qdd4 Bg5 Qbc5 Nh6 Na3 Nf7 Rb4 Kd8 Rg1 Be6 Nf6 Kc8 Nb5 Kb7 Ng4 Rad8 Qf6 Ka8 Re4 Qh7 Re5 Bh6 Rh5 Qd3 Bg2 Qd7 d6 Bd5 Nbc3 Qa6 Nb5 Bg5 Rh7 Qh2 Kf1 f2 Bf3 Qg3 Be4 Qd3 Kg2 f3+ Kg3 Be3 Kh4 f1B Bf5 f2 Be6 Ne5 Bg8 Nf7 Ne5 Qd1 Rg7 Qd2 Ng4 Qb4 Nec3 Bfc4 Ne2 f1Q Qa1 Qe8 d7 Qh1 Nd6 Qa3 Nb7 Qe6 Qe7 Qad6 Qe5 Re8 d8N Qed7 Q7f6 Re6 Qef5 Re4 Rg6 Rd4 Rg7 Rd3 Q5e5 Bh6 Qd4 Be3 Qc5
br1Q1q2/2KB2nN/Pp2N3/p5Bn/3brB2/2p2R1r/2BR2pk/1Q1b2br b - - 0 1 illegal: No proof kernel
1KRRrrb1/1BQ1r2p/r2pq2n/BR1p1p2/1NNP1b2/3n2n1/2k2nQR/8 b - - 0 1 legal: proof: h4 e5 f4 exf4 b4 a5 h5 axb4 c3 c6 h6 gxh6 Qa4 h5 Qb5 h4 Qd5 cxd5 Kf2 Ke7 Kf3 Ke6 g4 Ke5 e4 b5 a4 f5 d4+ Ke6 c4 b3 c5 h3 e5 b4 g5 h2 a5 b2 c6 b3 g6 Ra6 g7 Qe8 c7 Nh6 Na3 b1R Nc4 b2 Ne2 Nc6 Nc3 Nb4 Na2 Bd6 Bd2 Nd3 Nb4 Re1 Rb1 Rf8 g8Q+ Ke7 e6 Kf6 Qf7+ Kg5 e7 Be5 Qg7+ Qg6 Qf7 Qe6 e8R Re4 Rd8 Re8 Ra1 b1R Ra2 Ra1 Rb2 Ra8 a6 d6 a7 Rb8 a8Q Ra6 Be1 Bd7 c8R Rf8 Rb3 Be8 Qfa7 Bf7 Qc7 Bg8 Qac6 Rba8 Qa4 R8a7 Qa2 Rb7 Bc3 Re1 Rb2 Re4 Be2 Rba7 Rhb1 h1N Bf1 Re1 Rh2 Nhf2 Rb3 Rb1 Ke2 f3+ Kd2 Kf4 Kc2 Ke4 Rb2 Rb7 Kb3 Bf4 Bd2 Rc6 Ka4 Re1 Ka5 Ra7+ Kb5 Rca6 Bc3 Ra5+ Kc6 R5a6+ Nb6 Ra8 Kb7 R8a7+ Kb8 Re3 Qg7 Re7 Qc4 Ree8 Qg2 Re1 Rb3 Re2 Qc7 Ke3 Ba1 Kd2 Bc3+ Kd1 Nc4 Re3 Nc6 Kc2 Rb5 Qe5 Bb4 Nc1 Nb2 Ra7 Bd2 Nfg4 Rh3 f2 Rb4 Re1 Be2 f1N Ba6 Ng3 Rh2 Nf2 Rb5 Ncd3 Bb7 Ra6 Ba5 Qf6 Nc4 R1e7 Be1 Qf7 Ba5 Qe6 Nb4+
b6r/1rp1Np1B/k2n2n1/1RQ1N3/p1N1R1b1/2K4P/1Q1N1bbp/r1Brq3 b - - 0 1 illegal: No proof kernel
2R4N/3K1Np1/BQ1p3Q/1Q3B1p/k1n1b1pP/5prq/1n1r4/2brrRQr b - - 0 1 legal: proof: f4 a5 g4 f5 b4 fxg4 d4 axb4 f5 c5 Bf4 cxd4 Nf3 e5 Ng1 exf4 Kf2 b5 e4 h5 a4 d3 c4 d6 h4 Kd7 c5 Kc6 f6 d2 e5 f3 Ke3 b3 Ke4 b4 a5 b2 e6 b3 Kf5 Ba6 f7 Qc8 Nh3 Nd7 e7 Nh6+ Ke6 Bb7 e8Q Be7 f8Q Nf5 a6 Bg5 a7 Ne3 Qf6 Nc4 Nf4 Kb5 Qh6 Be4 c6 Qa6 Ng6 Nb6 Na3+ Ka4 Rc1 b1R c7+ Qb5 c8Q Nb2 Qcc6 N6c4 Qb6 Rf8 Qec6 Rfe8+ Kd7 Be3 Qe1 d1R Nh8 Ra1 Rc2 Bc1 Qee3 Re5 Qg1 Rae8 a8B Red5 Bb7 R5d2 Ba6 Ra2 Bd3 Rg2 Kc7 Rg3 Qcb7 Qe5 Kd7 Qf4 Qd5 Qd2 Qe5 Qh2 Qec5 Qh3 Rc3 Bd5 Bf5 Ree1 Rc2 Be4 Qe5 Na5 Rc8 Nac4 Qd5 Nd3 Qdc5 b2 Qe5 b1R Qe8 Ne3 Nc4 Rad2 Ne5 Nb2 Nef7 Nec4 Qge3 Ra1 Rf1 Ra3 Qg1 Rae3 Bg6 R3e2 Qe5 Rh2 Bf5 Rh1 Qeb5+
1n6/3QN1qb/B3r3/knbR2n1/1Bpp1p1B/p1R1B1bp/5QrP/4bK1N b - - 0 1 illegal: No possible last move
bq2r1Q1/N2B3p/KbRB1b2/3Q1qk1/Q1Q1pp2/2r5/p3Pp2/n1Rn1b1N b - - 0 1 legal: proof: f4 c5 a4 g5 d4 cxd4 h4 b5 h5 bxa4 h6 Qc7 Be3 Qd6 Bd2 gxf4 Be3 Qxh6 Bc1 Qh2 Kd2 e5 Kd3 Ke7 Kc4 Kf6 Kb5 d5 g4 a5 b4 d3 c4 d2 c5 a3 c6 f3 c7 a4 Kb6 e4 b5 d4 Ra2 d3 Bh3 f2 Nf3 Nc6 Qg1 d1Q Ne1 d2 Rc2 a2 Rc4 a1B Nc3 a3 Nd3 a2 Qe1 Nb4 Ba3 Ne7 Rc6+ Kg5 Nf4 f5 Nh5 Nc2 Bd6 Ra3 Ng3 f4 Qf1 Qb1 Qd1 Nf5 Re1 Qg1 Nh1 Nfe3 Rf1 Bb7 c8Q Ba8 Qa6 Bb2 Qa4 Na1 Ka6 Rg8 Qb3 d1B Qc4 Bb3 b6 Nd1 Nb5 Bf6 b7 B8e7 b8Q Re8 Qb6 Bd8 Qb7 Bb6 Na7 Qg3 Rg1 Qh4 Qd7 Qh5 Qdf7 Qg6 Qfd5+ Qf5 Re1 Bc2 Rg1 Rc3 Re1 Bb3 Rf1 Kg6 g5 Kh5 g6 Kg5 g7 Qb2 Qcd3 Qb1 Q5d4 Bd5 Qd4c4 Be6 Qdd5 Qb4 Be5 Qd6 Re1 Qb8 Bd6 Bf7 Rf1 Bh5 Re1 Bf3 Bg4 Bg2 g8Q+ Kh6 Bh3 Bf1 Bg4 Qe5 Bd7 Qf5 Qh8 Kg5 Qf8 Nb2 Rc1 Nd1 Qfg8+
R4N1Q/1n1B1p2/3Qr2p/1N2n3/1Rkpp1r1/3qP1rr/RB1pqb2/K2b1R2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxf4 d4 axb4 d5 b5 d6 Ra3 h5 Rh3 h6 Rh2 Be3 cxd6 Bd2 d5 Bc1 d4 Kf2 Bxh6 Ke1 Bf8 Kd2 e5 c4 Ke7 Kc2 Kd6 Kb2 Kc5 a4 d5 g4 d3 a5 e4 g5 b3 g6 h6 a6 d2 a7 f3 a8R b4 g7 f2 R8a6 Ne7 g8Q Nf5 Qg4 Nd6 Qd7 Rh3 Qe8 Rg8 R6a3 Bg4 Nf3 Nb7 Nc3 Nc6 R1a2 Ne5 Nb5 Rg3 Bg2 f1Q Bh3 Qd7 Kb1 b2 Ng5 Bd6 e3 Qe2 Rg1 Be7 Nh7 Bh4 Re1 Bh5 Rb3 R8g4 Qh8 Qd8 Kc2 b1R Nf8 Ra1 Kb2 Qd7 Ra8 Ra6 Rf1 Re6 Ka1 Qd6 Bb2 d4 Ra2 Qa6 Qe1 Qa3 Qf2 Qa6 Qff6 Qa3 Rd3 b3 Qf4 Kb4 c5 Kc4 c6 Qa6 Bg2 Rh3 c7 Bf2 c8R+ Rc6 Ra8 Re6 Bc1 Rhg3 Bh3 b2+ Kb1 Qa3 Rb3 Qa6 Kc2 b1R Bb2 Ng6 Qb8 Ne5 Qd6 Rd1 Bc1 Re1 Kb1 Qd3+ Ka1 Re2 Rd1 Re1 Bb2 Rh1 Bg2 Rhh3 Rg1 Rf4 Rf1 Bd1 Bf3 Qe2 Bh5 Rfg4 Bg6 Qa3 Bf5 Re7 Bd7 Re6 Bc3 Qa5 Bb2 Qc3 R8a5 Qc2 Ra8 Qcd3 Rb4#
4n3/qRP1R1p1/3bb3/Rp1rr1p1/5N2/qpb1Q3/k1nRK1bp/Q1B1N2B b - - 0 1 illegal: No possible last move
2Nn1n1b/q7/r1P1pQk1/N3p2p/BBKpB3/R1R3np/1r3p2/r1QB3b b - - 0 1 illegal: No possible last move
Q5NN/6b1/nknR4/2PrQn2/4q3/4n1nN/r1rQp3/RRrBK1n1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 f4 fxe4 g4 b5 f5 bxa4 Bg5 h6 Bc1 Ba6 Bg5 hxg5 f6 Bc4 Bd3 Be6 Bf1 Bf5 gxf5 Rh3 Ke2 Rh7 Ke1 Rh8 h4 e5 c4 a5 b4 d5 f7+ Kd7 c5 Kc7 h5 d3 h6 e3 h7 e4 f6 d4 c6 e2 Qc2 a3 Qb2 g4 Qa2 g5 Qb2 a2 Qb3 g3 Qc2 a4 Qb2 a3 Rh4 g4 Nd2 g2 Rc1 a1R Rb1 g3 Rh1 a2 Qc2 Qe7 Qc3 Qc5 Rh4 Kb6 c7 Ra5 c8R Ne7 Rc7 Na6 Rh2 Bg7 f8N Nc6 Nh3 g1N f7 g2 Nb3 d2+ Kf2 d1N+ Ke1 d3 Nd2 Ne3 Qc1 Nf5 Ng6 Rc8 h8Q Rb5 f8Q Ra5 Nf3 Rb5 Nd4 d2+ Kf2 e1R Rd7 Ne2 Rd6 g1N Rh1 Neg3 Be2 d1Q Qch6 Qd3 Qd2 Rc1 Bd1 e3+ Ke1 e2 Qe8 Qe4 Qe5 Rc7 Qa8 Rc2 Nh8 Ra7 Rb3 Rac1 Rb2 a1N Rb1 Nb3 Ra1 Ne3 Nf5 Nd4 Nh6 Ndf5 Ng8 Ra5 Rh2 Raa2 Rf2 Rd7 Rf3 Nd5 Rb3 Nde3 Rbb1 Rd8 Rf6 Rd3 Rd6 Rd5 bxc5+
q1R1Q3/4n1r1/2r2P1K/1p1q2B1/1kn4B/1pr3qN/N3bNBq/1Q4Qb b - - 0 1 legal: proof: b4 b5 e4 d5 exd5 f5 a4 g5 h4 gxh4 c4 c5 Ra3 a6 Re3 Bh6 Re4 fxe4 a5 Be3 Nh3 cxb4 c5 b3 c6 Bb6 axb6 Qd7 c7 Qd8 Rg1 Bg4 c8Q Bf5 Qc4 Bc8 Rh1 a5 Qb4 axb4 Ng1 Qd7 Nh3 Qc7 Ng1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 h5 f4 e5+ Kg6 b2 g4 e3 b7 e2 f5 e1R d6 b3 d4+ Kb4 d7 h3 d5 h2 d6 e4 g5 e3 Nc3 b1Q Bg2 e2 Ne4 h4 Nh3 Qd3 Nef2 Nc6 b8N Ra7 Qc2 Qd5 Qb1 Qf8 d8B Na5 Nd7 Nc4 Nc5 Bd7 Rg1 h1B Bf4 Bc6 d7 Rc1 Bd2+ Rc3 Rc1 e1Q Ncd3+ Ka4 Be7 Qa8 d8Q Rh6+ Kg7 Qe3 g6 Qg3 Bg5 Bd7 Bef6 Ne7 Qe8 Bc8 Rc2 Rd7 Nc1 Kb4 Kf8 Rc7 g7 Rc6 g8Q Rh7 Qgg6 Be6 Qg8 Bf7 Qg7 Bh5 Qg8 Be2 Qg6 Rh8+ Kg7 Rg8+ Kh6 Rg7 Ra2 Qad8 Ra8 Qa5 Rc8 Qa8 Ng1 h3 Bh4 h2 Bfg5 Bh5 f6 Bf3 Ngh3 Be2 Be4 Bg2 Bf3 h1Q Be4 Qhh2 Bf3 Bh1 Bg2 Rg8 Qg7 Ng6 Qa7 Ne7 Qd4 Rg7 Qd1 Qc5 Qg1 Qd5 Na2+
4r1BK/N1Qk3n/R3p1P1/1pbqp3/1Q1n1r2/n3B3/Q1b1R1R1/1q2B1r1 b - - 0 1 legal: proof: b4 b5 e4 d5 h4 g5 c4 gxh4 cxd5 f6 e5 fxe5 a4 c5 a5 cxb4 Na3 Qc7 Nc4 Qd8 Nb6 axb6 axb6 Be6 Bd3 Bg4 Bf1 Bc8 Ke2 h5 Ke3 b3 Ke4 b2 f4 b1N d4 h3 g4 h4 b7 h2 g5 h3 d6 Ra4 g6 Rc4 f5 Qb6 d7+ Kd8 f6 Rh6 Kf5 Kc7 d5 Rhh4 f7 Rc3 d6+ Kc6 Be3 Rc5 Qe2 Bh6 f8Q Nf6 Nf3 Rhc4 Qa2 Bg7 Rg1 h1R Rg2 h2 Ke6 Nh7 Kf7 Rg1 Kg8 h1Q d8B Qc7 d7 Qd6 Ba5 Rf4 d8R Na3 Be1 Bf5 Bc4 Bc2 Nd4+ Kc7 Rc8+ Kd7 Nc6 Qd4 Na7 Nc6 Bf7 e6 b8Q Qd5 Qb6 Rcc4 Qb4 Bf8 Kh8 Bc5 Bg8 Nd4 Ra8 Rf8 Rb1 Re8 Rb2 Bb3 Rbe2 Bc2 Rg4 Qhe4 Rgg2 Qd3 Rc8 Qd1 Rc6 Qb1 Q6a5 Nf3 Ra6 Rf4 Qb6 Nd4 Qc7+
b1Q1B3/K1p1n2R/2N1q1n1/p7/4bq2/rqBpPQ2/QNn1B1k1/1q1N4 b - - 0 1 legal: proof: h4 b5 b4 a5 a4 g5 f4 gxh4 e4 e5 c4 exf4 c5 Bd6 c6 Bc5 Ra3 Be3 dxe3 Ra7 Rb3 bxa4 b5 Rb7 cxb7 axb3 Kd2 Ke7 Kc3 Ke6 Kd4 d5 Kc5 Ke5 g4 f5 g5 h5 g6 d4 b6 h3 g7 d3 Be2 h2 Na3 b2 Bf3 b1N Qd2 h4 Nb5 h3 Nc3 Nc6 b8N Qd7 b7 Na3 Nb5 Qe6 Be2 f3 Na7 f4 Qd1 f2 Bd2 f1Q Be1 f3 Nb5 f2 Nc3 Nce7 Na4 Rh4 Nb2 Nc2 Kb5 Ng6 Bd2 N8e7 g8Q Qb3+ Ka6 Bf5 Ka7 Qg2 Qf7 f1Q Qc4 Qf4 Bc3+ Kd6 Qa4 Qgg4 e5+ Kd5 Qa2 Be4 Nc6 Qe6 b8Q Rg4 Qc8 Rg2 Bh5 Rd2 Qg4 Rd1 Ne2 Ra1 Qb1 Ra3 Qa2 Bg2 Qg5 Ke4 Bg4 Bf3 Qh5 Bg2 Ned4 Bf3 Nb5 Bg2 Be2 Bf3 Rf1 h1Q Rf2 Qb1 Rh2 Qec4 Rh1 h2 e6 Bg2 Rf1 h1B Rf2 Ng8 e7 Qe6 e8B Bf3 Rh2 N8e7 Qg4 Bhg2 Rh7 Bh1 Qh4 Bfg2 Bf1 Kf3 Qh5+ Kf2 Be2 Kg1 Bf6 Bd5 Nc3 Bde4 Ncd1 Bhf3 Bc3 Kg2 Nb8 Ba8 Nc6 Be4 Qf3+
Q2k1rNK/r1qp2r1/7P/R3p3/1pN5/r4q1B/2QR1qr1/1nNb1QR1 b - - 0 1 legal: proof: f4 b5 a4 a5 g4 e6 d4 h6 g5 hxg5 e4 Bc5 f5 Bb6 b4 axb4 a5 c5 axb6 cxd4 Bf4 Nc6 Bd6 f6 Be5 fxe5 f6 Nce7 Qe2 Nf5 exf5 e4 Qd2 Kf7 Qd1 Ke8 Kf2 b3 Kg3 b2 Kg4 e5 c4 e3 h4 b4 b7 e2 b8R e1Q h5 d3 c5 d2 h6 Ba6 Kh5 g4 Kg6 g3 c6 g2 c7 Be2 c8N Ra7 Rb7 Qc7 f7+ Kd8 Rh2 Nf6 Ne7 Ne4 f6 Nc3 Qc2 d1Q Nd2 b1R Nc4 Ra2 Ra7 Rb3 Na5 Rg8 Kh7 g5 Ra6 g4 Nc4 g3 Ra3 Bf3 Ne2 g1R Bh3 g2 Ra6 Rg7+ Kh8 Rf1 Ng8 g1R Nd6 Bb7 Nc4 R1g6 Ra7 Bf3 Ra3 Bh5 Rf2 Rg2 f8Q+ Be8 Rc1 Nb1 Qf7 Ra1 Qd5 Bg6 f7 Bh5 Ra6 Ra5 Ra7 Rba3 f8Q+ Be8 Qff3 Bh5 Qb7 Qd5 Rd1 Qd3 Nc1 Qb3 Re2 Bg4 Qfd3 Rf8 Red2 Qf2 Rg1 Bd1 Qf1 Qbf3 Qc6 Rc5 Ra4 Ra5 Qd5 Ra8 Ra5 Ra7 Qa8+
q5nb/8/2k1bR1b/Q2pQrpN/3N2p1/KN2p1q1/P2r1R1B/1Q1bR3 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 c5 d4 cxd4 g4 hxg4 c5 b5 c6 Na6 Bc4 bxc4 c7 Nb8 cxb8Q c3 b5 c2 Qd6 Qc7 Qc5 Qd8 Qb4 axb4 Kd2 d5 f4 Kd7 h4 g5 h5 e5 f6 b3 f7 b2 b6 d3 Kc3 d2 Kb3 e4 h6 Ra7 f5 Bb7 h7 Ra4 f6 Bd6 f8R Ra7 f7 Qe8 Ne2 Be5 Nd4 Ba8 b7 Bg7 b8Q Bc6 Rh2 Bh6 Qe1 d1B Bf4 e3 Qa5 c1B+ Ka3 Bd2 Qb3 Qa8 Rf2 Bc3 Nd2 b1Q Bh2 Qf5 Qb1 Qf4 N2b3 Qg3 Rd2 Kd6 Rf2 Bd7 Rf6+ Be6 Rf2 Rb7 Rf6 Ne7 Rf2 Rg8 h8Q Rg6 Qf6 Ng8 Qe5+ Kd7 Rc8 Rb6 Rc6 Rf6 Rd6+ Kc7 f8N Rf5 Nh7 Kb7 Nf6 Rb4 Ne2 Rd4 Nh5 Rd2 Ra6 Bd7 Rg6 Be6 Rf6 Kc6 Ned4+ Kb7 Rg6 Qh3 Nb5 Qg2 Qee4 Bh8 Qc1 Qg3 Rf6 Be2 Qe5 Bf3 N5d4 Be2 Qb2 Bf3 Re1 Bd1 Qa4 Kb6 Qa1 Kb7 Qb1 Kb6 Qa5+ Kb7 Ne2 Kc6 Ned4+
K2Q1R1r/2p3bp/n2pn1B1/1b3R2/1b1qRB1B/6N1/pQ2P1p1/Qb2k3 b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 f5 c4 fxg4 Na3 dxc4 d3 cxd3 Nc4 Ba6 Bg5 Bb7 Bc1 Bc8 h4 g5 Ra4 a5 Nf3 g3 Ra1 g4 Nd6+ exd6 Ng1 Ra6 Bg2 Rc6 Bh3 Rc5 Bf1 Rg5 hxg5 Bb7 Ra2 Ba6 Ra1 Bc8 Kd2 Kd7 Ke3 Ke6 Kd4 Kf5 Kd5 a4 f4 a3 b4 g2 b6 a2 b7 d2 b5 g3 b6 Kg4 g6 Nh6 f5 Qh4 g7 Nc6 b8R Qh2 g8Q+ Kh4 f6 Nf5 f7 Ncd4 b7 Ng7 Nh3 g1B Bg2 Be7 f8B Nde6 Kc6 Bd4 Nf4 Bg5 Be7 Nc5 Nh5 Bf5 Rf8 Na6 b8Q Ne6 Kb7 Bb1 Ka8 Bg7 Be4 g2 Ng3 Qh3 Rhf1 Qg4 Bg6 Qd4 Qb2 B5f6 Qe1 d1B Rf5 Ba4 Bf4 Bb5 Re5 Kh3 Re4 Kh2 Qec3 Kg1 Bd8 Be5 Bh4 Kf2 Rf5 Bef6 Qd8 Be5 Qcc2 Ke1 Qcc1+ Qd1 Rf8 Bc3 Rf5 Bb4 Rf8 B1d3 Rb1 Bc2 Qa1 Bcd3 Qcb2 Bc2 Rc1 Bb1 Rc5 Qd4 Rcf5
3B4/1Q6/1k3pQP/pp1b3p/1BRb1RBn/1NQKp1p1/r3Rp2/2b3r1 b - - 0 1 illegal: No possible last move
6bq/Bk2Pb2/N2r3B/n1q1R1qb/r4nQ1/Q1q1N3/2r4Q/qB1Nn2K b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 c4 b5 h4 d5 e4 Kd7 a5 Kc7 h5 g5 a6 g3 c5 g2 h6 b3 f5 b2 h7 g4 a7 b4 e5 b3 f6 d3 Ke3 g3 f7 d2 f8Q d4+ Ke4 d3 e6 Ne7 c6 Ng6 e7 Nf4 Qf6 Be6 Rh3 Bg8 Qe2 d1R Qf8 d2 Na3 b1N Qe1 b2 Bb5 f1Q Nc4 f2 Kf3 Na3 Ba6 b1Q Rh5 Qb2 Qe2 Nc2 Re5 Qc3+ Ne3 Bf7 Nh3 g1Q Qd3 g2 Qh6 Ne1+ Kg3 Kb6 c7+ Nc6 c8Q Qdd4 Qh5 Na5 Qcg4 Rhc8 h8B Rc5 Bc4 Kb7 Ba2 Qh1 Bb1 g1Q+ Ng2 Rc6 Qh6 Qcc5 Qa3 Qa6 Qhh5 f1B Nf2 B1c4 Qh2 Bg8 Bg7 Bcf7 Bh6 Qa1 Bb2 Qac4 Bd4 Qcc3+ Be3 Rc1 Nd1 Re6 Qg5 Rc2 Qg4 Q3b4 Bd4 Rd6 Bf2 Qbc3+ Be3 Rc8 a8N Re8 Nc7 Ra8 Nf2 d1B Na6 Bf3 Nd1 Ra7 Re6 Qg5 Re5 Ra8 Ba7 Qgc5 Nge3 Be2 Qg1 Qh3+ Kf2 Qhh5 Qh2 Qh3 Bg7 Qh8 Kg1 Bf3 Qgg3 B3h5 Bh6 Rd4 Kh1 Ra4 Qhh4 Rd8 Qhg4 Rd6 Qh2
br1b4/qkNB3n/nR1Qb2B/8/3qbQqb/4bbr1/6PN/2B1KQ1N b - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 b4 exf4 Ra3 b5 axb5 cxd4 c4 Qa5 Rb3 Qd8 Rc3 dxc3 e4 d5 e5 Kd7 c5 Kc7 e6 a5 b6+ Kb7 e7 f5 e8N h5 b5 h3 Ne2 f3 Bf4 a4 Rg1 a3 Qd2 d4 Nf6 c2 Rh1 c1B Nd7 d3 Qc2 d2+ Kd1 h4 Bg5 f4 Qc3 h2 Nf6 f2 Nh7 a2 Qh3 a1B Ng3 f3 Qf5 h3 Nc3 Be7 Na2 Qd4 Bh6 Na6 Ng5 Bd8 Be2 f1B Qf4 f2 Nc3 Nf6 Nf3 Nh7 Nd5 Rb8 Nc7 Rg8 Rg1 h1Q Nh2 Bab2 Bg4 Bd3 Bd7 Be4 Re1 Qf1 Nh1 Qfc4 Re3 f1B Rc3 Rg3 Rc2 Ra8 Qd6 Bfd3 c6+ Kb8 b7 Ba1 Be8 Be6 Bd7 Qa7 Qf4 Baf6 Rc3 Qad4 Qf1 Ka7 b8B+ Kb6 Rc2 Bh4 Rc3 Bb1 Rc2 Qa2 Ke2 d1B+ Ke1 Be3 Rc4 Ka5 b6 Bdf3 b7 B4d5 Ba7 Bbe4 b8Q Qa3 Rc1 Qe7 Rc2 Qeg7 Bc5 Qg4 Ba3 Qa7 Bc1 Qd4 Qb2 Rb8 Qa3+ Kb6 Qd6 Ka7 Ne8 Ka8 c7 Ka7 c8Q Ba8 Qc3 Kb7 Nc7 Qa7 Qf6 Qd4 Qg1 Qa7 Rc6 Qd4 Nf1 h2 Qff4 Qa7 Nf2 h1Q Nh2 Qd4 Qf1 Qg1 Nh1 Qa7 Qff8 Beg5 Qff4 Qgd4 Qd2 Be3 Qdf2 Be2 Qff4 B2f3 Rb6+
Kn3Qkq/nn4q1/bqN1B1N1/1R2Q3/5Q2/n1q2r1P/1R2q1R1/2n1r1Nr b - - 0 1 illegal: No possible last move
4R2r/2BQ2rq/1n1b2Bb/2nN3K/B4P2/q2rQ1N1/1qb3pQ/Nk3qq1 b - - 0 1 legal: proof: g4 c5 d4 cxd4 e4 f5 b4 fxe4 h3 g5 a4 b6 Ra3 b5 h4 gxh4 Rg3 hxg3 axb5 Ba6 Nc3 Bb7 Nb1 Bc8 Ke2 Kf7 c4 Ke6 f4 a5 c5 Kd5 g5 Kc4 b6 h5 c6 e5 c7 d5 g6 g2 g7 h4 b7 a4 b5 h3 b6 a3 Bb2 d3+ Ke3 d4+ Kf2 h2 Kg3 e3 Nc3 e2 Ne4 e1B+ Nf2 e4 Qd2 Kb3 Qd1+ Ka2 Qd2 e3 Qd1 e2 Qc1 d2 Qc3 d1R Nf3 d3 Nd2 Qd4 Nb3 d2 Na1 Nd7 Kg4 Ra7 b8N Kb1 b7 a2 Qe3 Nc5+ Nd7 Ne7 g8B Bh6 b8Q Nd5 Kh5 Nb6 Nf6 Bf5 c8Q Bc2 Nd5 Rg7 Bh7 Qd3 Qd6 Qa3 Ne4 Bf2 Bf6 e1Q Bb5 Qf1 Ng3 Be1 Rg1 h1Q+ Qh3 Bf2 Ba4 Qh2 Nb3 a1Q Bg6 Q1b2 Na1 Be1 Bd8 Bf2 Qee7 Bd4 Qa7 Be5 Qdd7 Bd6 Rh1 Qhg1 Bc7 Qfd3 Qh2 Qe4 Bf7 Qh7 Be8 Re1 Bf7 Re3 Bg6 Qf1 Rg1 Rf3 Rh1 d1Q Rg1 Qdd4 Rh1 Rd3 Rg1 Qfc1 Re1 Qg1 Re8 Qcf1 Qe6 Qbb4 Qe3 Qbb2 Qb7 Qbb3 Qc6 Qbb2 Qd7
1Rqbnk2/bb1n1N2/1Nnn3K/n4RQP/3Q4/3Q1B2/2r2pr1/4qRNq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 a5 c4 g5 h4 f5 b4 d5 e4 f4 e5 g2 e6 f3 e7 d3 Ke3 d4+ Ke4 g3 h5 d2 c5 g4 Kf4 d3 Kg5 a4 c6 a3 c7 a2 b6 Nc6 b5 Nf6 b7 Rg8+ Kh4 Qd7 b8N Bb7 b6 Qc8 Qe1 d1Q Qe3 d2 Bc4 Qe1 Be2 d1N Qg5 Ne3 Bb5 Nc4 Nc3 Nd6 Rd1 a1N Rc1 Ra2 Rc2 Nb3 Rf2 Rc2 Nd5 Na5 Nd7 Kf7 e8R Be7 Be2 Bd8 Rf1 Rg6 Ne5+ Kg7 Rf8 Nfe8 Rf5 Kg8 Nf7 Kf8 Nh3 g1B Bd1 f2 Bf3 Bh2 Ng1 g2 Nh8+ Kg7 Nf7 g3 Kg4 Kf8 Kh4 Qd7 c8Q Qc7 Qe6 Qc8 Qe5 Rg8 Qd4 Rg7 Nh3 g1Q Kg4 g2 Kh4 Ba6 b7 Rg8 b8Q Bb7 Qa8 Be5 Qd3 Bd4 Nb6 Qh2 Qaa6 g1N Qac4 Be3 Qcd4 Rg7 Bd1 Nf3+ Kg4 Nfe5+ Kh4 Ne7 Bf3 N7c6 Rhg1 Qh1 Rg4 Qg2 Ng1 Nd7 Re4 Qh2+ Kg4 Qh1 Ree5 Nb3 Ra5 Rg6 Ra8 Nba5 Rb8 Rg8 Qf6 Bc5 Qfd4 Rg7 Na8 Ba7 Nb6 Rg6 Kf4 Qd1 Qh4 Rg2 Qg4 Nef6 Kg5 Qe1 Kh6 Nfe8 Qg5
QR1rk2K/3qbB2/5B2/6r1/nnqn3N/1qP1r2b/1p1nQ1N1/BQ1Nb3 b - - 0 1 legal: proof: f4 a5 b4 axb4 d4 c5 e4 cxd4 a4 f5 g4 g5 Ra3 h6 Rg3 h5 exf5 gxf4 g5 Ra5 Rg2 Ra8 Rg4 hxg4 Kf2 d5 h4 b5 c3 e5 g6 g3+ Kf3 d3 Kg4 d2 h5 e4 a5 b3 h6 e3 Kh5 d4 h7 g2 g7 b2 Kg6 e2 f6 e1B a6 b4 a7 f3 Bd3 b3 Ne2 f2 Bc2 f1Q Na3 b1N Bb2 d3 Nc4 Bh3 Nf4 g1R+ Ng2 Nc6 Qe2+ Be7 Ne3 d1N Ba1 Nb2 Nd1 Nh6 g8N d2 Kg7 Rb8 a8Q Qd7 Bd3 Nb4 Bc4 Na4 f7+ Kd8 f8B b2 Bf7 Qf4 Rh2 Qc4 Qae4 Rb5 Rh1 Re5 Qf5 Ng4 Nh6 Re3 Qff1 Ne5 Nf5 Nf3 Nh4 Nd4 Rh2 Bg5 Bd6 Rhe8 h8Q Be7 Be5 Rf8 Bf6 Re8 Nf2 d1Q Rh1 Qdb3 Nd1 Nd2 Qf5 Rf1 Qb1 Rf5 Qg8 Rg5+ Kh8 Qdc7 Rf1 Kd7 Rf5 Rd8 Rb5 Qa7 Rb8 Qb7 Kh7 Qa7 Qgg6 Qac7 Qge4 Qc8 Qa8 Q8c7 Bg8 Ke8 Kh8 Qd7 Bf7+
2r5/B1qb1b2/1Rp2QQr/n1P1rbrb/2N5/4NB1q/b3K2k/1B2Qn1N b - - 0 1 legal: proof: e4 a5 b4 axb4 Ne2 d5 Ng1 dxe4 Ke2 f5 f4 exf3+ Ke3 f2 g3 f4+ Ke4 f3 Kf4 Ra4 Ke3 Ra8 a4 h5 Ra3 e6 Rc3 Be7 Rc4 Bd6 Rg4 Bf4+ gxf4 hxg4 c4 Kd7 d4 Kd6 h4 g5 h5 b5 a5 e5 h6 g3 h7 g2 d5 b3 f5 b4 f6 e4 a6 Ke5 a7 g4 d6 g3 c5 b2 d7 b3 f7 Nf6 f8N Nh5 Qd3 Nc6 Nc3 b1B Rh3 b2 Na2 Na5 Qb5 c6 Rh2 Qc7 d8Q Bd7 Qh4 Rc8 Bd3 f1B a8B f2 Ne2 g1Q Nb4 g2 Nc2 Ng3 Bb7 Qh1 Ba6 g1R Ng6+ Kf5 Qc4 Ba2 Qg8 b1B Ne5 Qg2 Nc4 Qh3 Kd2 Bg2 Bb2 f1B Be5 Bf3 Qg7 Bh5 N2e3+ Ke6 Bf4 Bg2 Bc2 Nf1+ Kd1 Bgf3 Qe1 Bf7 Rg2 B3h5 Qg6+ Ke7 Rh2 Rg4 Ng3 Rg5+ Ng4 e3 Ke2 Bg8 Be4 Bf7 Bf3 Be4 Nh1 Bef5 Qg8 Ke6 Be5 Qb6 Bb8 Qb7 Ba7 Qc7 Ngf2 Kf6 Nd1 Ke6 Bb5 Kf6 Ba4 Ke6 Bc2 Kf6 Na3 Ke5 Bb1 Kf4 Qg7 Rhg8 Qh6 Rg6 h8Q Re6 Nc4 Rf6 Nhf2 Kg3 Qg6 Rd6 Rh1 Re6 Rg1+ Kh2 Nh1 Rf6 Qgh7 Rfg6 Qf6 Rh6 Qhg6 Bfg4 Kd3 e2 Nde3 Bge6 Qc1 e1R Rg4 Rd1+ Ke2 Rdd5 Qe1 Bf5 Rd4 Re5 Rd2 Rch8 Rb2 Rc8 Rb6
2nQK3/2N4n/bQ4B1/1P2B3/r1r4q/pbb2kNB/rNr2R2/1Q3nbq b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 a5 Kf5 Kd5 h4 g5 b6 a4 b5 a3 c3 d3 h5 d2 h6 g4 b7 Qh4 h7 Nf6 e3 Nc6 b8Q Ba6 Qe8 Ne7+ Kf4 Nc8 Kf5 Bb4 Ne2 g1Q Rh2 g2 Qd8 g3 Bb2 Qh1 Qb6 g1R Bh3 g2 Ng3 d6 Qc2 d1R Nd2 Ra1 Nc4 Rgc1 Qb1 g1B Rf2 Ra2 Ba1 Rf8 h8Q Rcc2 Nb2 Nh7 Qf6 Re8 Qfd8 f6 Kg6 f5 Kf7 f4 Bf5 f3 Bg6 Re4 c4+ Ke5 c5 d5 c6 d4 c7 d3 Ke8 Rec4 e4 Kf4 e5 d2 e6 d1B e7 Bc3 Rg2 f2 Rh2 Na7 c8B f1N Bh3 Nc8 Rg2 Rd2 Rh2 Bb3 Rg2 Rc2 Rf2+ Ke5 Kd7 Kd5 e8N Ra7+ Nc7+ Ke5 Rg2 Kf4 Ke8 Kf3 Nd3 Be1 Be5 Bc3 Nb2 Ra4 Na8 Rc7 Rd2 Rc5 Nc7 Rcc4 Rf2+
1Rr4r/2QBR3/r1bP1q2/1B2b2n/2k3rQ/n7/1n1KNB1p/r1r1QRn1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 e4 Kd7 g4 Ke6 d4 h5 g5 c5 g6 f5 e5 Kd5 e6 b3 b7 c3 b6 c2 e7 h3 e8B f3 g7 b2 Ba4 b1N Bab5 h2 Bh6 c1N Nh3 h4 Ba6 c4 Bg2 c3 Bg5 f4 Ra4 c2 Be2 Qf6 Ba6 Bd7 Ng1 h3 Qd3 Ne2 Rb4 c1R+ Qd1 Rc8 Qc1 Bd6 Bh4 Na3 Qb2 Bc6 Qc1 Be5 Bf2 Nd7 b8R Nc5 b7 Na4 Kd2 Nb2 Bb5 Ra6 Qe1 Rh4 Rb3 Rg4 Ba4 Kc4 d5 Bb5 d6 Bc6 Bd4 f2 Re3 f1R Be4 f3 Bf5 f2 Bd7 Qf3 Ba7 Nf6 Bb6 Nh5 g8Q+ Qf7 Qg5 Qf5 Qh4 Qf6 Nf3 Ng1 Nd4 Qf5 Ne2 Qf6 Qa1 Rc1 Bd4 Bg3 Re7 f1R Bf2 Be5 Qb1 Rc3 Qe1 Rc1 Ra8 Ra1 b8Q Rc1 Qc7 Ra1 Qb1 Re1 Rb8 Rc1 Nf4 Ne2 Rg1 h1R Rf1 Ng1 Ne2 Rh2 Ra8 Rg2 Rb8 h2 Qh7 Rg3 Qc2+ Rc3 Qd1 Rh3 Qe1 Ng3 Qg5 Rhh8 Qh4 Nh5 Bb5+
1K2n1Q1/2n1r1Q1/1Rk1q1Bn/R6q/p7/B1q3Pb/B1Q2nRb/2n1N1nb b - - 0 1 legal: proof: d4 a5 f4 c5 a4 cxd4 f5 b5 g3 bxa4 f6 g5 Nd2 g4 Ndf3 exf6 Nd2 f5 Ndf3 gxf3 h3 f4 Bd2 Ra6 Be3 Rg6 Bc1 Rg4 hxg4 Bb7 Kf2 Ba6 Ke1 Bc8 Kd2 h5 Kd3 f5 Kc4 d5+ Kb5 Kd7 e4 a3 c4 d3 b4 h4 e5 d2 c5 f2 g5 f3 g6 d4 g7 a4 Nh3 a2 Nf4 h3 Rg1 d3 Bg2 f1N Bh1 f2 Nd5 f4 Ne3 h2 Bb2 f3 Ba3 Qe8 Kb6 Rh7 Ka7 Kc6 e6 Nf6 e7 Bh3 g8B Na6 Bb3 Nc7 Nd5 Ne3 Rb1 a1N Qe2 f1Q Rb2 d1N Qc2 d2 Nf4 Qc4 Ng2 f2 Ba2 f1N Qg6 Qd7 e8R Qde6 Ra8 Nf2 Kb8 d1Q Qg7 Neg4 Ra5 Nd2 Ne1+ Nf3 Rg2 Nb3 Rb1 Qc3 b5+ Kd5 b6 Nh6 b7 Nfe8 c6+ Bc5 Rb2 Ng1 Rb1 Qh5 Rb2 Nb5 c7 Kc6 c8Q+ Nbc7 Rb1 Qd6 Qf5 Nc1 Qc2 Qdd5 Qf8 Re7 Qg7 Qe6 Rb6+ Kd7 Ka7 Bd4 b8Q Be3 Qa8 Bd4 Kb8 Be3 Rb7 Kc6 Qb3 Nf6 Qc2 N2e4 Rf2 Nge2 Bf3 h1B Rg2 Bg1 Rb6+ Kd7 Ka7 Bh2 Qb8 Nf2 Qbg8 Ng1 Be4 Nfe8 Kb8 Nd5 Rb7+ Ndc7 Bg6 Kc6 Rb6+
3b1qb1/nQ1bQ2b/RR6/q1n5/N2pRBr1/P1BnQB2/2k2b2/3n2nK b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Nb1 f5 Nc3 b5 Nd5 f4 Ne3 Ra6 Nd5 Rf6 Ne3 Rf5 gxf5 Na6 Ng4 hxg4 Bb2 Nb8 Ba3 Bd6 Bc1 Bf8 Kf2 Ke7 e4 Kf6 c4 Ke5 h4 g5 a3 d5 h5 g3+ Ke1 d3 f6 Kd4 h6 Kc3 f7 g2 Kf2 b3 c5 d2 e5 b2 h7 b1B e6 d4 e7 b4 e8R b3 c6 b2 c7 g4 Ba6 Ne7 Qa4 d1N+ Ke1 f2+ Ke2 f1N Bd3 f3+ Ke1 g3 Be4 f2+ Ke2 Nec6 Kf3 Be7 f8B Nfe3 Bh6 Rg8 h8Q Ng4 Qb5 Ba2 Qf6 b1B Qb7 Bd7 c8Q Qa5 Bhf4 Bd8 Rh6 Na6 Qe7 Nc5 Rd6 Na7 Ra6 Bd3 Bb2+ Kc2 Ne2 g1N+ Kg2 f1Q+ Kh1 Ne5 Nc3 Rg4 Rb1 Bg8 Bf3 Bdh7 Na4 Nd3 Bc3 Qf2 Rbb6 g2+ Kh2 Ne2 Qcb8 g1B+ Kh1 Qf1 Qbe5 Bf2+ Kh2 Ng1 Kh1 Qe1 Q5g5 Qe4 Qge5 Qf5 Qe3 Qf6 Qg7 Qd6 Re4 Qf8 Qe7
1K1b2N1/3QbkbB/8/1pRQ4/5nPR/qr1rR2b/1Nb3qb/2q1N1qQ b - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 h4 f5 c4 dxc4 Bb2 Na6 Bd4 Nc5 Be5 Ne6 f3 Ng5 f4 fxe4 f5 Ne6 Bf4 g5 Ke2 gxf4 Ke1 Ng5 hxg5 Bg7 Qf3 Bh6 Qd1 Bf8 Kf2 e5 d4 b5 a4 h5 f6 c5 d5 f3 Ke3 f2 d6 b3 a5 b2 g6 h4 a6 h3 a7 c3 g7 c2 d7+ Kf7 Qd4 c1B+ Qd2 c4 Nf3 c3 Rg1 h2 Rg3 h1Q Nh4 c2 Rg1 Ne7 g8N Bg7 Ra2 Nd5+ Ke2 e3 Kd3 e4+ Kd4 e2 Ke5 e1B Kd6 e3 Bc4 f1B Nf3 e2 Rg3 Rh3 Ra1 Qg2 Bd3 Qa5 d8Q Bf5 Nc3 b1Q Nd1 Nf4 Nb2 Qa3+ Kc7 Be4 Qd6 Rd8 a8Q Bf2 Qac6 Bg1 Ne1 Bh2 Re3 Bh7 Qdc5 Rg3 Be4 Rd3 Kb8 Rb3 Qd1 Bd2 Qg5 Bb4 Qcd7+ Be7 Qh4 c1Q Q1d5+ Kf8 f7 Bf5 Bf3 Bc2 Be4 Rh3 Bh7 Rf3 Ned3 e1B Ra2 B1b4 Ne1 Ba5 Ra1 Bad8 Qh3 Bg1 Qh1 Bh2 Ra2 Qb4 Ra6 Qa3 Rh6 Rg3 Rh4 Rh3 Rc3 Rd3 Rc5 Qba1 Nd1 Qd4 Nb2 Qdg1 Qf3 Qg3 Qa7 Bh3 Qd5 Q3g2 Qad7 Nh5+ Qc7 Bd4 Qcd6 Kg7 f8R Bc3 Rf1 Nf4 Rf3 Kf8 Qc7 Bg7 Re3 Ke8 Qcc6+ Kf8 Qdd7 Kf7 Qcd5+
3KQq1b/4p1Bb/1N6/k2n1QQB/5b1b/pnr1r1b1/5NP1/r2NB1nR b - - 0 1 legal: proof: e4 g5 h4 gxh4 b4 f5 a4 fxe4 c3 b5 Nf3 h3 Nh2 d5 c4 dxc4 Ng4 h2 axb5 Nd7 Ra5 Nb8 Rg1 h1R Ra6 Bb7 Rh6 Rxg1 Rh1 Ba6 Nh2 Bc8 Ke2 Kd7 Ke3 a5 Kd4 c5+ Kd5 Kc7+ Ke5 Kb6 f4 h5 d4 e3 d5 e2 d6 e1B d7 c3 Ke6 h4 f5 a4 f6 h3 f7 c2 Bf4 c1B Nf3 a3 Nfd2 h2 Nc3 c4 Bh6 Bg3 Bg5 Nf6 Qc2 Na6 Be2 Rh3 Nd1 c3 Ne4 Bcf4 Bh4 Bg7 f8B Nd5 Bh5 Bh8 Bg7 Qf8 Nef2 Re1+ Qe4 c2 Qe5 Rf1 Qg5 c1B Qf5 Bb7 Qg5 Rc8 d8Q+ Rc7 Qc8 Rc3 Kd7 Bcd2 Qe8 Be1 Kd8 Nc5 Qf5 Nb3 Qg5 Ka7 b6+ Ka6 b5+ Ka5 Qf5 Ba6 b7 Rg1 b6 Bd3 Qg5 Bh7 b8Q Rf1 b7 Re3 Rg1 h1N Qbe5 Rc3 b8N Re3 Ng4 Nf2 Nd7 Rc3 Qgf5 Re3 Nb6 Rc3 Bg5 Bh4 B5f6 Rhe3 Rh1 Nh3 Ngf2 Ng1 Qg5 Bhg3 Qef5 Bh4 Nh3 Beg3 Nhf2 Rc7 Bb2 Rcc3 Bc1 Rfe1 Bd2 Rf1 Nb2 Rd1 Be1 Ra1 Nbd1
rq6/R2BQk1K/qq2nP1n/2qp1BbN/2p1R3/Q6Q/1BR4n/rq1b4 b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 d4 c6 d5 cxd5 c4 Nf6 c5 Ng8 Na3 Nf6 Nc4 dxc4 Ra3 Ng8 Ra4 Nf6 Ra1 Ng8 Kd2 e5 Ke3 h5 b4 d5 f4 a5 g4 h3 f5 a4 b6 h4 g5 h2 c6 a3 b5 h3 c7 a2 f6 Nd7 b7 Kf7 b8R Nh6 b6 Nc5 b7 Bg4 c8Q Qb6 Qa4 Bd1 Bb2 Ne6+ Qc5 Bd6 Qa3 Ra4 Rc1 a1Q Ra8 Rd8 Ra6 Ra8 Ne2 Bb8 Rg1 h1Q Rc2 h2 Ra7 Qg2 Ng3 h1Q Nh5 Qgh2 Rgg2 Q1g1+ Rgf2 Bc7 b8Q Qa2 Bd3 Ra6 Kd2 e3+ Kc3 e2 Bf5 e1N Rf4 e4 Qc8 e3 Re4 e2 Qe3 Nc5 Kd4 Qhd6 Qh8 Qd8 Bd7 Qdb8 Qd8 Bf4 Qe7+ Kg8 g6 Bg5 g7 Nf3+ Kc3 Nh2 Kd4 e1Q Bf5 Q8d8 Ke5 Ne6 Qec3 Qgc5 Qh3 Nc7 Bd7 Qdb8 Bf5 Ra4 Bd7 Qea5 Bf5 Qaa6 Bd7 N6g4+ Kf5 Ne6 Kg6 Qb1 Kf5 Kh7 g8B+ Kh8 Kg6 Nh6 Bf7 Ra5 Bfe8 Kg8 Bc8 Ra4 Bed7 Ra5 Qae3 Ra1 Qa3 Nc7 Bf5 Ne6 Bd7 Q8d8 Qd6 Qdb8 Qc7 Kf8 Kh7 Kf7 Qe5 Qbf8 Qd6 Qfb8 Qe7+
2b2Q1K/N3rr1P/qp2NQR1/R5R1/6r1/2rN2Qr/1Brp3n/1knb3r b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 Kd3 Ke7 Ke4 Kd6 Kf5 Kc5 Kg6 Kc4 e4 f1R h4 d5 a4 g3 c3 b6 a5 d3 f5 d4 h5 f2 f6 g2 e5 d2 f7 Kd3 f8N b3 a6 b2 a7 Re1 h6 f1R c4 Nd7 e6 Rf7 e7 Nc5 e8R Nf6 Qh5 Kc2 Re5 d1B Ne6 d3 Qf3 d2 Rg5 Ng4 Ra5 Nh2 Qg3 Nd3 Nf3 g1R Nc3 b1R c5 Rb2 Nb5 Kb1 c6 Rc2 Bb2 Nc1 c7 Qd4 Ne5 Qa4 Nd3 Qa3 Nd8 Ree7 Ne6 Rb8 a8Q Rgf1 Ra7 Qa6 Rg1 Rc3 Rg2 Rh1 Qc6 Rb7 Ra8 Rc2 Na7 Rf3 Nb4 Rfc3 Nd3 Nf3 Qh4 Qa3 Rh5 Ree8 Qce4 Bd7 c8Q Nh2 Qeg4 Qa5 Kf7 g5 Kg7 Qa3 Qf3 g4 Nb5 g3 Qhf6 Qa2 Rg1 g2 Ra7 Qc4 Ra5 Ref8 Na7 Qa6 Qc5 Bc8+ Qce7 Re8 Qf8 Rh7+ Kg8 Rbc7 Qef6 Rcf7 Qh3 Ree7 Qg4 Rhg7+ Kh8 Rg5 Qgf3 Rg3 h7 Rh3 Rh6 Ng4 Rg6 Nh2 Re1 g1R Ree5 Rgg3 Reg5 Rg4 Qg3
4b3/R1BnQ1r1/B1n1k1qr/B3P1r1/Rb1qp1bQ/2RN4/3r2p1/1KQ2n2 b - - 0 1 legal: proof: d4 h5 a4 b5 axb5 e5 g4 hxg4 f4 exf4 e4 c6 e5 Rh7 d5 cxd5 Nd2 Rh8 Ne4 dxe4 Kd2 Ke7 c4 d5 Kc2 g5 b4 f5 h4 a5 c5 f3 h5 f2 c6 d4 h6 a4 h7 d3+ Kb1 a3 c7 f4 b6 g3 b5 a2+ Kb2 d2 b7 g4 b6 f3 Rh4 g2 Qe2 d1R Be3 g3 Bc1 Nf6 Qc2 Qd6 Ne2 g1R Bd2 Bg4 c8R Ke6 Qc1 Nc6 b8Q Ra7 b7 Nd7 Qc7 Be7 Ba5 Rd2+ Qc2 Rg2 b8B Qd4+ Kc1 Bb4 Qd8 Qb6 Bc7 Rg1 Kb2 Qa6 Nc1 Rg2 Bb5 f1B Rh2 f2 Nd3 Bfe2 Ra8 f1N Rh3 Bh5 Qg5 Be8 Qh4 Qb6 Ba6 Bg4 Kc1 Rb7 Ra7 Qg1 Rb1 a1Q Qe7+ Kf5 Qb2 Qb6 Qc2 Qad4 Ra1 Rg1 Kb1 Rgg2 Qg7 Ke6 Qc1 Rg8 h8Q Rh2 Bd6 g2 Bc7 Rh1 Qgh7 Rg5 Rf3 Rh6 Ra4 Qbc5 Rg3 Qf8 Re3 Qf7 Qf8 Qg8 Qf2 Qf7 Qh4 Qg6 Qe7+ Kd5 Qec5+ Ke6 Ne1 Ne7 Bb8 Nb6 Rc3 Nc6 Nd3 Rg7 Bc7 Nd7 Qe7+
1r1qQN2/3n1n1k/n1N2qp1/Nr1r3B/2nQ1R2/1q6/1RPb2p1/1Q1K1b1R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 e4 a5 h4 d5 b4 f5 b6 Kf7 b7 Kg6 e5 g2 e6 a4 e7 f4 e8R d3 h5+ Kh7 h6 g3 b5 d2+ Ke2 a3 b6 d4 Rh3 a2 Nc3 d3+ Kf3 g6 Re1 Na6 b8Q Nf6 b7 Nd7 Qc1 d1Q+ Nce2 d2 Qb2 Bb4 Rh4 Qb1 Qd4 d1R Nc1 Qb3+ Ke2 Bd2 Rb1 a1Q Rb2 Rf8 Nh3 Rf5 Rg4 Rb5 Ng5+ Kg8 Qbe5 Rb8 Ne6 Kh7 Qed5 Qaa3 Qg1 Qaf8 Qdd4 Qff6 Qh1 Qa2 Nb3 g1N+ Kd3 g2 Na5 f3 Be2 f2 Rf4 f1N Bh5 Nf3 Ke2 Nfe5 Qhg1 Ra8 b8N Nf7 Nbc6 Qb3 Qh1 Ne3 Ref1 Kh8 h7 Rab8 Re1 Nc4 Rg1 Bb4 Rgf1 Rd3 Ra1 Bd2 Qb1 Re3+ Kd1 Ree5 Ra4 Red5 Ra3 Qa4 Rh3 Qb3 Rh1 Nde5 Ng5 Bf5 Ne6 Nd7 Rf3 Bd3 Rf4 Bf1 Nc5 Kg7 Ne6+ Kh6 Rg4 Ng5 h8Q+ Nh7 Qe8 Ng5 Rgh4 Nf7 Rf4 Kh7 Nf8+
2b2RB1/n2r2R1/1N1p1Qq1/n3Nbp1/qqN2b2/2r1P3/4knK1/bQ1RQ3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 h4 Ke7 c4 Ke6 b4 Ke5 h5 Kf4 b6 Ke3 b7 a5 b5 f5 c5 d3 c6 d6 h6 a4 c7 a3 h7 a2 b6 f4 Qb3 f3 Nc3 d2+ Kd1 f2 Bh3 f1B Rb1 a1B Qa2 g2 Qd5 g3 Nb5 Qe8 Rb2 Ne7 Nf3 g1Q Ne5 g2 Be6 Ra7 Na3 Nbc6 b8Q Na5 b7 Nec6 Bg8 g6 Rb5 Bh6 Qe6 Bf4 Nac4+ Kf2 e3 g5 Qf5 Qg6 Qb1 Qh2 Qa8 g1N b8R Nh3 R5b7 Bd3 Rg1 Bdf5 Rh1 Kg2 Ke2 Nf2 Rd1 Kg3 Kf1 Qh4 Bf7 Rd8 h8Q Rd7 Bg8 Ra6 Qf6 Na7 Kg1 Rc6 Kf1 Nb5 Qa6 Na7 Qab6 Rc5 Q6b4 Rc6 Rc1 d1Q+ Qe1 Qc2 Rd1 Qa4 Rb4 Bb7 c8N Rcc7 N8b6 Bc8 Na3 Rc3 Nac4 Ba6 Rf8 Bc8 Rb5 Qg4 Rc5 Qh4 Rc7 Qb4 Nc6 Kf3 Kg1 Rd8 Rg7 Rd7 Qd2 Qa4 Qdc1 Ke2 Kg2 Bg3 N6e5 Qd4 Rd3 Bf4 Qg1 Qc5 Rd1 Qcb4 Qe1#
BrRbr1R1/2QPqq2/1pr4b/5b2/1n2qQ2/1Q2p2n/4KbB1/kB1R2N1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Bd7 Bb2 Bc8 Na3 Kd7 Be5 Ke8 Bf4 h6 Nc2 gxf4 g5 h5 Ne3 Nc6 Ng4 hxg4 Qc1 Nb8 Qc2 Kf7 Qd1 Ke8 h4 Kf7 a4 e5 d4 c5 g6+ Kf6 h5 b3 h6 b6 h7 c4 a5 c3 d6 c2 d7 c1R d5 b2 g7 b1Q a6 f3 a7 f2+ Ke2 g3 d6 g2 Ra5 e3 Ra6 e4 Ra5 Na6 Rh2 Nh6 g8B Qe7 d8R Rc6 Re8 Nb4 Rb5 Rb8 a8B Nf7 Bb7 Bh6 Nh3 g1B Qb3 Ng5 Rd5 Qc2+ Rd2 Ke5 f6 Bf5 d7 Qb1 Rc2 Kd4 Rh1 Bh2 f7 Bc7 f8Q Bd8 Ng1 Nh3 Bf7 Rg8 Bg6 Rh8 Qe6 Rg8 Rc1 Rh8 Rd1+ Kc3 Bg2 Kb2 Ba8 Ka1 Qd6 Rg8 Qf7 Rh8 Qb3 Rf8 Rc1 Rh8 Qf4 Rg8 Kd1 e2+ Kd2 e1B+ Ke2 e3 h8Q+ Bg7 Rc3 Bh6 Qhe5 Qe4 Qc7 Rh8 Rg8 f1Q+ Kd1 Qfc4 Bh7 Qcf7 Ke2 Bf2 Bg6 Be6 Bf5 Qe5 Bb1 Qe4 Nf3 Bf5 Rd1 Nc2 Ng1 Nb4 Rg7 Re8 Rg8 Rf6 Qcd6 Re6 Rc8 Rg6 Qc6 Rf6 Qb7 Rc6 Qbc7
3Br1Q1/Pp1pNk2/6n1/nnq3bn/b7/7N/rR1Qq1NR/1KQr1qR1 b - - 0 1 illegal: No proof kernel forced: wxLB
n5Q1/1R6/2BQ3B/3n3q/bp1Nqr2/BrpqQ3/K1PqnRn1/2kb2R1 b - - 0 1 illegal: No possible last move
N2q1RKn/3pP3/B1q3n1/Qb3Qbb/5N1k/rr1B1B2/rQ5p/1N2r1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 h6 b4 Ne7 Rh4 Ng8 Be3 Qf6 Bf2 Qb6 Rh1 Qa5 Bh4 Qd8 Ra3 Rh7 Rg3 gxh4 g5 Rh8 g6 Qg5 Rg2 Qd8 Rg5 hxg5 Kd2 Ke7 Kd3 Kf6 Ke4 a5 Kd5 a4 e4 a3 c4 f3 h6 d3 h7 a2 g7 a1R b6 h3 c5 f2 b7 h2 c6 d2 b5 g4 b6 Kg5 e5 f5 e6 f4 c7 f3 e7 g3 Qa4 d1B Bd3 f1R Ne2 g2 Qa5 g1B Nf4 f2 Ke5 Nh6 g8B Kh4 Kf6 Ra3 Bd5 Bh5 Bf3 Nc6 b8Q Ne5 b7 Ng6 Qf5 Rd1 Qa7 f1Q b8N Re1 Qaa5 Ba6 c8B Bb5 Na6 Nf7 Nc7 Bh6 Ba6 Bg5+ Kg7 Ra7 Na8 Qg2 Qc3 Rf8 h8Q Qc2 Qa5 Qc6 Kh7 Rb7 Qb2 Nfh8 Kg7 Rf6 Kh7 Rfe6 Kg7 R6e2 Kh7 Bd4 Rf1 Bg1 Qc1 Rea2 Qb2 Ba4 Kg7 Rbb3 Rf2 Qdb6 Kg8 Bb5 Re2 Qbc7 Re6 Q7b6 Rf6 Qd8+ Rf8
1RR1N1r1/3BB2q/pq1QQp2/n2n1n1k/1P1r4/K1R4n/2r1n3/2Q1qBb1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 Qd3 bxa4 Qd2 Ne7 Qd1 Ng8 g6 h5 Nd2 f6 Nc4 Ba6 Ne5 Ke7 Ng4 hxg4 Rb1 Bc4 Ra1 Bf7 gxf7 Rh3 Nf3 Rh6 Ng1 Rh8 Kd2 g5 c4 d5 Kc2 a6 b4 g3 Kb2 d3 e4 g4 h4 a3+ Ka2 d2 c5 g2 h5 g3 c6 f3 c7 d4 c8R f2 e5 d3 h6 Qb6 h7 Nc6 e6 Na5 Bb2 Nh6 Qb3 d1N Qc2 d2 Rc3 Rg8 h8Q Rc8 Qd3 Nf5 Qc4 Nde3 Nh3 g1N Qh6 d1R Rac1 g2 Nf4 Ne2 Nh5 g1N Ng7 Rd4 Ne8 Nd5 Qf4 Rc7 Rh8 Nh3 R1c2 Bh6 Qc1 Bf4 Qb3 Bh2 Qc4 Bg1 f8Q+ Kd8 e7+ Kd7 Qg7 Ke6 Qg3 Kf7 Qd6 Kg6 Ba1 Rb7 Qc8 Rc7 Qce6 Rc8 Kb1 a2+ Kb2 Rc6 Ka3 Rc8 Bg2 f1Q Bb2 Qf4 Bf1 Qh4 Ba1 Rd8 Rc8 Rd2 Bd4 Qh7 R2c3 Rc2 Bc5 Rd7 Nc7 Kh5 e8B+ Rf7 Bc6 Rd7 Ne8 Rd8 Qg3 Rd7 Be7 Rd8 Qgd6 Rd7 Qb2 Rd8 Bd7 a1Q+ Qa2 Qe1 Qb2 Rg4 Qc1 Rd4 Nc7 Rg8 Rb8 Rg3 Rhc8 Rg8 Ne8
1r3N2/1r1rq1rP/1Q4r1/NbR1nQ2/1k1Q1r2/2nB3p/1K3p2/1BBN2nq b - - 0 1 illegal: No proof kernel
qR1rk1KQ/2P4N/4r2p/rn5n/1Q1qQp2/3RRbn1/B2Bqrn1/B7 b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 axb4 e5 cxd4 e6 fxe6 Ke2 e5 Ke1 e4 g4 Nf6 h4 Nd5 f5 Nc6 Nc3 Ne5 Nce2 Nc6 Nf4 gxf4 g5 Nf6 g6 Nb8 Nh3 Bh6 Ng1 Bg5 hxg5 Ng8 Kd2 e5 a4 d5 c4 b5 a5 h6 c5 d3 a6 e3+ Ke1 e2 Kd2 e1N c6 b3 Kc3 b4+ Kd2 e4 f6 b2 g7 b1R a7 b3 Kc3 b2 Kd4 d2 Ke5 d4 c7 e3 g6 d3 Rh3 e2 Nf3 Bg4 Ng5 Na6 Ra3 Ng2 Qb3 d1Q Qb4 e1R+ Re3 d2 Rd3 Qe2 Nh7 d1Q Bd2 Bf3 Ke6 Qd4 Qb7 Q1a4 Qb4 Rd8 a8Q Rbc1 Qe4 b1N Qb3 Na3 Qb4 Qf2 Be2 Rc2 Bd1 Rb2 Bb3 Qe2 Ba2 Nb5 Ra3 Ne7 Rad3 Rf8 g8Q Nb8 g7 Nf5 Qh8 Nd7 g8R Qa8 Rg5 Ng3 Rc5 Na3 Rb5 Ra1 Rb8 Nb5 Bc4 Ra5 Bd5 Nh5 Ba2 Nc5+ Kf5+ Kd7 Kg6 Rfe8 f7 Re7 f8B Re6+ Kf7 Rc2 Qee5 Ne4 Kg8 Neg3 Qe4 Ke8 Bg7 Qf1 Be1 Rf2 Bd2 Qe2 Be5 Qda7 Bb2 Qd4 Ba1
5nnQ/QP1nq1N1/2K2N1r/1p1r4/n3bR1q/rR3p1Q/6kB/1N1qRq2 b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 b4 gxh4 c5 a5 Qb3 axb4 Qa4 Nf6 Qd1 Ng8 e3 d5 Qh5 b5 Qg4 b3 Bc4 dxc4 Qf3 Bg7 Qd1 Bc3 Ke2 Ba5 Ke1 Bb6 cxb6 Bb7 Nc3 Ba6 Nb1 Bc8 Ke2 Kd7 Kf3 Ke6 Ke4 c5 a4 f5+ Kf3 Ke5 g4 h5 d3 c3 a5 c2 g5 h3 g6 c4 a6 h4 g7 h2 a7 h3 b7 b2 e4 c3 Ra4 Qe7 Qe2 Rh6 Ra3 Nd7 Rb3 Nf8 Qe3 Be6 Ne2 Bd5 Rf1 h1R Rf2 h2 Nd4 Rd1 Ne6 Bc6 Bd2 c1Q Be1 c2 d4+ Kf6 d5 Ke5 d6 Rd5 d7 h1Q+ Rg2 Qhh4 d8Q Qd2 Bg3 c1N Rf2 Nd3 Bh2 Nc5 Qd3 Ncd7 Qf1 Rb8 a8Q Qe1 Qa4 Ra8 Qh3 Ra7 Qa1 Ra3 Qa5 Qd2 Qa7 Qc2 Nc5 Kd4 e5 Qd2 e6 Qc2 Nc3 b1N N5e4+ Kd3 Nf6 Qd1+ Re2 Qc1 Re1 Qd1+ Ne2+ Nc3 Qb2 Qe8 e7 Qd8 e8N Qe7 Qa1 Kd2 Kg2 Na4 Nc3 Qhh5 Kf2 f3 Kg3 f2 Kf4 Qc2 Qb2 Qh4+ Kf3 f4 Qa1 Qc1 Nb1+ Kc2 Qe5 f1Q+ Ke4 f3+ Qg4 Rc5+ Kd4 Be4 Qh3 Rg6 Qh5 Rcg5 Qh8 Rh6 Re2+ Kd1 Ree3 Bf5+ Kd5 Bc2+ Kc6 Rd5 Re4 Qd2 Rd4 Ke2 Rf4 Qdd1 Rf5 Qh1 Nc7 Be4 Ne6 Qg2 Rf4 Kf1 Ng4 Ngf6 g8R Bc2 Rg5 Ng8 Nf6 Bd3 Ng7 Be4 Qe6 Qg1 Rg2 Qh1 Re2 Qg1 Ree3 Kg2 Re1 Qf1 Qh3+
6nK/1nR3r1/R1p2kb1/1p1Q1n2/2Bbbr1R/p1B3Q1/1Q1rBqP1/1qN5 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Na3 exf4 Qb3 bxa3 Qc2 Qf6 Qd1 Qd8 Kf2 Ke7 Kf3 b5 Ke4 f5+ Ke5 h5 d4 h3 e4 h2 a5 f3 a6 f4 a7 f2 Qe2 f3 Qb2 h4 Ne2 h3 Bd2 Bf5 Bc3 Rh7 Nc1 Bg6 Be2 f1R d6+ Kf7 d7 c6 d5 f2 d6 Qh4 d8Q Rg7 d7 Na6 Qg5 Rd8 a8R Nc5 Qg3 Nb7 Ra6 Bc5 Ra2 Rd1 Ra1 Rf8 d8Q f1B Qd5+ Ke7 Bc4 Bd3 Rf1 h1Q Rf7+ Ke8 Rc7 h2 Ke6 Rf4 e5 Bd4 Ne2 Bde4 Qg5 Qf2 Qg3 Nh6 Rc1 Rd7 Rb1 Bef5+ Kf6 Rd2 Rc1 Qd1 Ra1 Qc2 Rh1 Qb1 Nc1 Kd8 Qf7 Ng8+ Kg7 Bc2 Kh8 Bce4 Qd5 Ke8 Be2 Rg7 Bc4 Kf8 e6 Ke8 Qh5 Kd8 e7+ Ke8 Be2 Kf7 e8B+ Ke6 Bf7+ Kf6 Rf1 Qa2 Bfc4 Qb1 Qd5 h1N Qf3 Ng3 Rh1 Nf5 Rh4 Qg3 Qd3 Qf2 Qg3
3NR1NQ/Q2q2b1/qp5B/6bK/1kpNrq2/p3b3/1Rnr1Pn1/Q2R2n1 b - - 0 1 legal: proof: b4 d5 h4 f5 e4 fxe4 a4 g5 c4 gxh4 a5 b6 a6 Bb7 axb7 c5 Be2 cxb4 c5 Qc7 Bd3 Qd8 Bc4 dxc4 Ke2 Kd7 d4 Kc6 g4 Kb5 c6 a5 c7 e5 c8N h5 d5 b3 d6 e3 Kf3 b2 g5 a4 d7 a3 g6 e2 g7 e1B Rh2 e4+ Kf4 h3 Nf3 h4 Kg4 e3 Qd4 e2 Qe5+ Kb4 Rg2 h2 Ng1 h1Q Rh2 h3 Nf3 Nc6 b8Q Nd4 Qf6 Nh6+ Kh4 Bd2 g8R e1B Rg4 Be3 Ne5 Qf3 Qa7 B1d2 Rh1 h2 Rg5 Ng4+ Rh5 Nc2 Rh6 Bg7 Nf7 Re8 Kh5 Qf4 Rh8 Re4 Nc3 b1N Nb5 Nc3 Rd1 Ne2 Ne7 Ng1 Nd4 Qe8 d8Q Qd7 Ra2 h1Q+ Kg6 Qh3 Re8 Qb7 Ng8 Qa6 Qe5 Rc8 Qdf6 Rc6 Nd8 Rd6 Kf7 Qh7 Qh5 Qhf5 Qh8 Qd7+ Kg6 Rd5 Nb3 Rd3 Qa1 Rdd4 Bb2 Bc1 Kh5 Rd2 Nd4 Ne5 Qb1 Ng6 Qa1 Nh4 Bc3+ Kc5 Rb2 Ng2 Nb3+ Kb5 Bf6 Kb4 Bg5 Bf6 Bh6 Bg5 Ra2 Bb2 Nd4 Bc3 Nf3 Be5 Nd4 Bg7 Rb2+
q2Q2K1/1B1NR1P1/N7/2n2r1p/rp1npn1k/Q7/rBQN3B/r2b1b1b b - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 a5 b4 axb4 f5 c5 a3 cxd4 Be2 g6 Bf1 g5 g4 Nh6 h4 Nc6 a4 Ra7 Ra3 Ng8 Rf3 Ra6 Rf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Nf3 Ra7 Ng1 Ra8 Kf2 h5 c4 e5 a5 Ke7 a6 b5 g7 d5 g6 Kf6 a7 Kg5 c5 d3 f6 b3 c6 b2 c7 e3+ Kf3 e2 f7 e1N+ Kf2 d2 f8B b4 Ne2 d4 Qc2 d1R Bd6 d3 Ng3 d2 Ba6 f3 Ke3 f2 Ke4 f1B Kd5 Nf3 Bb7 Nd7 Ke6 Nc5+ Kf7 Ne7 g8Q Nd5 g7 Nd4 Ne4+ Kg4 Rh3 Nf4 Re3 Kh4 Nf6 Re1 Nd7 d1B Nd2 b1R Bb2 Re2 Qc3 Rg2 Qa3 Ra1 Qe8 Rh6 Kg8 Rf6 Re1 Rf5 Re2 Rb8 a8N Rh2 Ndb6 Bd7 c8Q Bc6 Nc7 Ra8 Nd7 Ra4 Na6 Bh1 Qc6 Qb8 Qe4 Qa8 Qc2 Rf6 Qd8 e4 Rf2 Nfe6 Rf5 Nf4 Re5 Re2 Re7 Rf5 Bc7 Re3 Qa2 Rea3 Qab3 R3a2 Qa3 Nfd3 Bh2 Nf4 Qcc3 Nc2 Qc4 Nd4 Qc2
Bb1q3n/2p3B1/1N4rr/b1k2P2/NrBR2n1/ppK2Q2/Q1NQ2r1/4n1b1 b - - 0 1 illegal: No proof kernel
k3nb1R/N3QK2/1qpQ1R2/1qN5/BRP2pr1/n1q5/1rp3nN/2Qrr3 b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 a4 gxh4 Kf2 a5 Ke1 axb4 Ra3 b3 Ra2 Ra5 Ra1 Ra8 c4 d5 Ba3 b5 Bb2 b4 Be5 Bd7 Bg7 Bb5 Bc3 d4 axb5 dxc3 Ra7 f3 Kf2 Kd7 Ke3 Kc8 Kf4 f5 Ke5 h5 Ke6 h3 d4 h2 e4 b2 g4 b3 d5 h4 e5 f2 d6 h3 g5 Ne7 g6 Nd5 b6 Nd7 b7+ Kb8 g7 Nf4+ Kf7 Nf6 g8N Rh4 e6 Ng2 e7 f4 e8Q Rg4 Bd3 f1Q d7 Qe1 Nd2 b1N Ne7 b2 Ne4 c2 Nc5 Qb4 Bf5 Qc3 Ra6 Ra7 Rc6 Ra2 Nf3 Na3 Nc8 b1Q Qe7 Ne8 Na7 Qbb4 Rd6 Rb2 Qc1 Qa4 Rf6 Qaa5 Rd1 h1R Be6 h2 Bd5 Rg3 Bc6 Rg4 Qd6 Rf1 Ba4 h1R Rd5 Rhg1 Nh2 Rd1 Rh5 Rge1 Qe7 c6 Rh8 Qc8 d8Q Qab4 Qdd6+ Qc7 Nb5 Qa5 Nd4 Ka7 b8R Qab4 Rb6 Ka8 Nb5 Qb8 Na7 Qd8 Rb5 Qb6 Qee3 Q4a5 Rb4 Qab5 Qee7
3NQ1qq/4Np2/2b3Nk/b1nn1bBP/3R3p/Q1n1q3/1pQrRR2/3n2K1 b - - 0 1 illegal: No proof kernel
1R3k1b/2qq1p2/Kp5r/B4BP1/QQ2b1qn/1r1RRpN1/rBb1b3/Q7 b - - 0 1 illegal: No possible last move
1Q5B/Qp1R1N2/3n1B2/nq2Q1Kp/Brrq4/k4P1p/4bnNN/1q1r3r b - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 a5 e3 axb4 h5 d5 h6 d3 Ba3 d4 Bb2 d2+ Ke2 gxh6 Ba3 h5 Bc1 h4 a4 f5 Ra3 Bg7 Rc3 Nc6 Rc4 d3+ Kf3 Ba1 Re4 Bd4 exd4 fxe4+ Ke3 Nb8 Kf4 Kd7 g4 Kd6 c4 h5 f3 b3 c5+ Kc6 g5 h3 g6 b2 a5 Kb5 d5 Kb4 d6 e3 g7 e2 a6 e1R d7 Nf6 g8Q e5+ Kg5 e4 c6 e3 a7 e2 c7 Nc6 Rh2 Qe8 d8B Be6 c8N Bc4 Nd6 Na5 Nf7 Qc6 Rf2 Ne8 Bf6 Nd6 Qb8 Rc8 Qc2 d1Q Qc3+ Ka4 Nd2 b1Q Bb2 Qb5+ Qe5 Kb4 Bc3+ Ka3 Rg2 Rc7 Rg4 Qda4 Rd4 Rd1 Rd5 e1R Ne2 Rc5 Nf4 Rc8 Be2 Rh1 Nf1 d2 Ng2 Bd3 Nh2 Qd4 Bf1 Rc4 Ba1 Be2 Bh8 Ne8 Rd7 Nd6 Bc3 Re1 Bf6 d1N Bh8 Nf2 Bf6 Bd1 Bd3 Ref1 Bc2 Be2 Ba4 Rc1 Qg8 Rf8 a8Q Rcd1 Qa7 Rb4 Ba1 Rc8 Bh8 Rcc4 Qgb8 Qdd5 Qf5 Qde4 Baf6 Qd4 Qe5
3K3B/2NnprQ1/3bN3/nRp2BnP/1B4N1/4nQ2/rpnr3r/Q1kq4 b - - 0 1 illegal: No possible last move
N1k3B1/4b3/n1n1r1Nr/qp1Q1p2/pr2PRp1/Q2K4/5Q2/q1qbBB1N b - - 0 1 legal: proof: g4 e5 f4 exf4 c4 h5 b4 hxg4 a4 d5 cxd5 a6 b5 axb5 a5 Ke7 Ra2 Ke8 Ra4 bxa4 e4 Kd7 Ke2 c5 d4 g5 h4 b5 d6 f5 d5 c4 a6 c3 a7 f3+ Kd3 c2 h5 g3 h6 f2 h7 g2 Nh3 g1Q Qe1 g4 Nc3 Ne7 Bd2 Rg8 h8N c1R Ng6 Ke8 d7+ Kf7 d6 Ke6 Nd5 Rh8 Nb6 Rh6 Qe2 Rb1 Be1 Nec6 Qd2 Qc7 d8Q Na6 d7 Be7 Qf8 Rb4 d8Q Bb7 Qd4 Re8 Na8 Qa5 Qc5 Kd7 Qd5+ Kc8 Qb2 Bg5 Qa3 Bd8 Qfc5 Re6 Rh2 Bg5 Rg2 Bh4 Rg3 Bf6 Rf3 Be7 Rf4 Qh1 Be2 f1Q Nf2 Qhg1 Qcd4 Qh1 Qdb2 Qhg1 Nh1 Qc5 Qbd4 Qc1 Qf2 Qa1 Bc3 Qfe1 Bf1 Qec1 Be1 Nd4 Qd6 Bd5 Qe5 Bb3 Qd5 Rh8 Nc7 Rh4 a8B Bd1 Bc6 Rh5 Na8 Rh6 Be8 Nc6 Bf7 Qd8 Bg8 Qc7 Qe5 Qa5 Qd5
N1R1bRN1/PQ1nK1b1/2rn3p/p1p3k1/3NB3/q3R1bp/Q1r2Q2/5n1n b - - 0 1 legal: proof: e4 f5 c4 fxe4 b4 g5 h4 d5 cxd5 gxh4 a4 Bd7 a5 Bc8 b5 Kd7 b6 Ke8 Ba3 Bg7 Bb4 axb6 a6 Bf8 Ba5 bxa5 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 b5 d4 e6 a7 h3 g5+ Kg6 Ke5 b4 f4 e3 d6 e2 f5+ Kh5 g6 h6 f6 b3 f7 b2 d5 Kg5 d7 e1N g7 Ne7 Kd6 e5 g8N e4 Nd2 b1N Qf3 e3 Ne2 Bg7 f8Q Nd3 Bg2 Nf2 Re1 Nh1 Nd4 e2 Nc4 Nd2 Nb6 Nf1 Ke6 Rh7 d6 Nf5 Qb7 Qc7 Be4 Qd8 Red1 e1B Rd3 Bg3 Re3 Qc7 Rc1 Qc6 Rc2 Qa4 Rf2 Qa3 Kf7 Rh8 d8R Bd7 Rc8 Be8+ Ke6 Rh7 d7 Nd6 Ke7 Rh8 d8Q Nd7 Qf3 Rb8 Na8 Rh7 Qdc7 Rh8 Qb1 Rb2 Qa2 Rc2 Qb7 Rh7 Qg2 Rh8 Nf6 Rf8 Ng8 Rf6 Qh2 Nf7 Rff3 Rc6 Qf2 Nd6 Rf8
N2R4/3q1Rq1/q3rp2/1nbk4/bQ5P/pB1p2b1/1Q1Kp3/bNRQr1N1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 f5 d5 f6 d3 Ra2 d4 Ra1 gxf6 Bh6 f5 Bc1 f4 g4 h6 g5 Qd6 g6 Qb6 Be3 Na6 Bf2 Nc7 Bh4 Nd5 exd5 Qd8 Bg5 hxg5 h4 Kd7 b4 Kd6 c4 e5 g7 a5 b5 f6 b6 a3 b7 e4 b8Q+ Qc7 Qa4 g4 Kd2 g3 Be2 f3 Bf1 e3+ Kc1 d2+ Kc2 g2 Bd3 f2 Qe8 f1Q Nf3 g1B Qb3 a2 Qbb5 a4 Be2 Bh2 Qe4 Bd7 Bd1 Ra6 Ng1 Bg3 Qb2 Nh6 g8Q Nf7 Qgg4 Kc5 Qe2 Re6 d6 Be8 d7 a3 d8R Nd6 Q4g4 Kc6 c5 Kd5 c6 Qg7 c7 Ba4+ Kd3 Be7 c8N Re8 Rd7 Bf8 Rf7 Nb5 Qf4 Bc5 Bb3+ Kc6 Nb6 d1Q+ Nd2 R8e7 Rc1 a1B Na8 Re8 Bc2 Kd5 Qg4 Qde1 Nb1 Qh3 Qd1 Qa5 Rh2 Qa6 Rf2 e2 Rf4 Rb8 Kd2 d3 Rc4 Rg8 Qf4 Qf5 Bb3 Qfh7 Rf8 Qd7 Rd8 Rg6 Qb8 Qg7 Qb6 Rg5 Qa5 Rf5 Qb4 Rf1 Re4+ Kd6 Re5 Re1 Rh5 Kc6 Rhh8 Kd6 Rhf8 Kc6 Rf7 Kd6 Bc2 Kd5 Bb3+
1R1RBK2/B2Q2nk/rnq1B1rp/4P1pr/2N5/1pb3r1/RQ3p1r/6rQ b - - 0 1 legal: proof: f4 a5 g4 f5 b4 fxg4 d4 axb4 f5 c5 Bg5 e5 Bc1 cxd4 h4 g5 h5 b6 Nc3 Ba6 Nd5 Bc4 Nf4 exf4 Nf3 Bf7 Ng1 Bg6 hxg6 Ra4 Nf3 Ra7 Ng1 Ra8 Kd2 d5 Kd3 f3 a4 f2 e4 b3 c4 b5 e5 b4 a5 b2 g7 Kf7 f6 Kg6 c5 b1R f7 b3 c6 g3 a6 g2 c7 Qf6 c8R Ne7 g8B Nd7 a7 Nf5 Ra2 Qc6 Rh4 Bb4 f8Q Nb6 Be6 Ng7 Rb8 Bc3 Nf3 g1R Be3 Rg3 Qa3 h6 Re4 Rg8 Qb2 Kh7 Nd2 Rc1 Qg4 Ra1 Bg2 Rh1 Nc4 Rh5 Rf4 Rh2 Rff8 Rh5 Rfd8 Rh2 Bf7 Rh5 Qd7 Rh2 Be8 Rh5 Ke2 d3+ Kd1 d2 Ke2 d1R Bh3 d4 Be6 Rdg1 Kd3 Qc5 Ke4 d3 Bd4 d2 Be3 Qc7 Bc5 d1R Bd4 Nc8 Kd5 Qb7+ Kc5 Nb6 Kd6 Qc6+ Ke7 R1g2 Bc5 Rgh2 Kf7 Nf5 Bd4 Rg6 Kf8+ Ng7 Rb7 Rc8 a8Q Rdg1 Rb8 Rc7 Bc5 Ra7 Bd4 Ra6 Bc5 Nd5 Ba7 Nb6 Qab7 Qc7 Qf3 Qc6 Qh1
7k/b2K4/BQn2q2/1p2rr2/nP4R1/qrbN4/RnbB2Q1/rB1QbRb1 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 g5 cxd4 g6 a4 Nd2 hxg6 Nb1 g5 Nd2 g4 Nb3 axb3 Kd2 Kf7 a4 g5 c4 Kg7 h4 d5 f4 b5 c5 e5 f5 d3 Kc3 d4+ Kb2 g3 Ka3 d2 c6 d3 c7 e3 h5 e4 a5 g2 a6 g4 a7 b2 Nh3 b1R Ng1 g3 Qb3 d1Q Ra2 d2 Qb2+ Nf6 Nh3 g1B Nf2 g2 Nd3 e2 Qa1 e1R Rh4 e3 h6+ Kh7 Rd4 e2 Rg4 Nfd7 f6 Bg7 f7 Nc6 f8R Nb6 Rf3 Bf5 c8B Na4 Ba6 Rg8 Qf6 Kh8 h7 Qc2 Rff4 d1N Bd2 Qd4 Rf2 Rae8 a8Q Ndb2 Qh6 Qc1 Kb3 Re5 Qd6 Ne7 Qb6 Rf8 Qac6 Rd1 Qc2 Re1 Qd1 Nc6 Rf3 Be3 Rf2 g1B Bh3 Ra1 Rf1 Bg6 Bg2 Qd6 Bd5 Rf3 Be4 Rd5 Bf5 Bc3 Be4 Qf6 Bf5 Kg7 Be4 Rdf5 h8Q+ Kf7 Qh2 Kg8 Qg2 Kh8 Ne5 Bc5 Bb1 Re3 Nd3 Ree5 Rff4 Rf1 Rf2 e1B Rff4 Rf2 Rf3 Rfe2 Rf1 R2e3 Qgf3 Nc4 Nf4 B3d4+ Bc3 Nb8 Qa7 Bf7 Qg2 Nc6 Qb7 Ba7 Qb6 Qa3+ Kc2 Rc5 Bd2 Ree5 Nd3 Ncb2+ Bc3 Bc4 Bd2 Bg3 Be3 Bb3+ Kd2 Bc2 Ke2 Bf4 Kf3 Rc3 Bc1 Rb3 Bd2 Rc5 Ke4 Bg3 Bh6 Be1 Bf4 Be5 Bd2 Rc4+ Kd5 Re4 Qde2 Re3 Qd1 Bc3+ Ne5 Qg5 Ke6 Qf6+ Kd7 Re2 Nd3 Re3 Rd4 Ree5 Rg4
b4bk1/1qnr2p1/1B2Q3/b2QB1P1/2B1n2n/Nn1R4/KRq1rr2/1R1b1Qb1 b - - 0 1 illegal: No possible last move
1n2b2N/2RN2bp/q1Qnp2r/bnb1PnR1/1r1kB3/R2n3Q/6K1/N2Qb3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 d5 h5 dxc4 h6 f4 Bb2 gxh6 Bg7 h5 Bd4 h4 Be3 fxe3 d4 Kd7 a4 Kc6 f4 b5 g4 c3 f5 b3 g5 h3 e5 Kd5 f6 c5 g6 e2 Kf2 e1B+ Kf3 c4 g7 b2 f7 c2 a5 c1B a6 b4 a7 h2 Bd3 b3 Qc2 c3 Bf5 Bcd2 Qc1 c2 Na3 b1N Qb2 c1B Qc3 b2 Bd3 Qb6 Be2 Qa6 Bd3 Bd7 Kg2 Nh6 g8R Bg7 f8N Be8 Nd7 Nf5 Nc2 Na3 Ne2 Nc4 Ra3 b1N Na1 Ncd6 Rf1 h1N Be4+ Ke6 Rg1 Nf2 Qh3 Nd3 Rh1 Nc3 d5+ Kf7 Rh2 Ncb5 Nf4 Ba5 Ng6 Be3 Rh1 Bc5 Rh2 Nc4 d6 Ke6 Rh1 Nd4 Rg1 Nb5 Rf8 Rg8 Rf7 Rf8 Nh8 Rg8 Nb6 Rf8 d7 Ncd6 d8Q Rg8 Bb7 Rf8 Nd7 Rg8 Bc8 Kd5 Bb7+ Kd4 Be4 e6 Re7 Nc6 Rf7 Rb8 a8Q Rb7 Qac8 Nb8 Qc6 Rb6 Kf3 Rf8 Rg5 Rb7 Re7 Rf6 Kg2 Rg6 Nb6 Rh6 Rc7 Nc3 Nd7 Rb4 Qe7 Ncb5 Qf7 Nc1 Qfh5 Nd3 Qd1
2R4q/1rB1k1q1/3R1B2/4p3/n4NQ1/1prq1QKR/qn2PQ2/qBbbr2q b - - 0 1 illegal: No possible last move
rr1r1QNq/kp1r4/1N2Qn1q/KP5n/4N3/1B1QRp2/3BBnb1/b3b1b1 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 g4 a5 d4 cxd4 b5 h5 Ra3 hxg4 Rb3 Ke7 Rb2 Ke8 Rb4 axb4 Kd2 f5 c4 g5 e4 d5 h4 Kd7 e5 Kc7 e6 Kb6 c5+ Ka7 e7 g3 e8N b3 h5 f3 c6 d3 Kc3 f2 a5 g4 h6 d2 a6 b2 h7 f4 c7 g2 Qe1 d1N+ Kb3 f3 Ka4 d4 Qb4 g3 Rh5 d3 Qf4 d2 Be2 f1Q Qf5 Bb4 Qg4 Nf6 Nc3 b1R Nh3 g1B Qe6 g2 Nd5 Nbd7 Ng5 Bd4 Nb6 g1B Ne4 Nf2 Re5 d1R Bd2 Nh5 N8f6 Ba1 Ng8 Rbc1 Qc6 Ndf6 Qe6 Bd7 c8B Rb1 Qf5 Bbc3 Qe6 Rb4+ Ka5 Qh3 Qg4 Bf5 Be6 Qh2 Qg6 Bh3 Bb3 Bg2 Re7 Qh3 Qf7 Qf8 Qe6 Qh6 Re8 Be5 Re7 Rd4 Re8 Rd7 Re7 Kb8 a7+ Kc7 Be3 Qh2 Ng5 Bec3+ Ka4 Qe5 Qh3 Re8 a8Q N6g4 Qa5 Kb8 Nf6 Bd2 Qc3 Rd4+ Ka5 Be1 Re6 Rhf8 h8Q Ka7 Bf4 R1d3 Bd2 Ra8 Qc4 Rfb8 Qf8 Rd6 Ng8 Qeh8 Re3 Rdd8 Ne4 Ngf6 Qhe6 R3d7 Qd3
1k1q1b1b/1r1NQ1qQ/B6Q/1p4b1/4N3/1Pn3qB/b1R1rBpn/K1N1r2r b - - 0 1 legal: proof: e4 f5 d4 fxe4 g4 c5 Bg5 cxd4 Bc1 h5 b3 hxg4 Nd2 a5 Rb1 a4 Rb2 a3 Be2 axb2 a4 Na6 Bf1 Nb8 f4 b1Q c4 e5 h4 b5 f5 g5 h5 d5 f6 Kd7 h6 Kc7 a5 g3 c5 d3 c6 d4 a6 g2 f7 g4 h7 g3 a7 e3 Ba3 e2 Bb4 e4 Qc1 Ne7 Bc5 Bf5 Qd1 Nd7 Nc4 Rb8 Kd2 e1R a8B Qa1 Nb6 Rb7 Nd5+ Kb8 Nc3 Nd5 Bb6 N7f6 Qf3 Ng4 Be2 Nh2 Qe3 Rg8 Nh3 g1B h8Q g2 Na2 Nc3 Ng5 Rg6 Bh5 Re6 Qh7 Qd6 Bg4 Qg3 Nc1 Qa7 Na2 Re2+ Kc1 d2+ Kb2 d1R+ Qd2 d3 Bh3 Bd4 Nc1 e3 Ne4 Bh8 Rf1 Re5 Rf2 Rh1 Bd4 Ree1 Qe2 d2 c7+ Kc8 Qeh5 d1Q Rc2 e2 Bf2 Qd8 Q5h6 Qad4 Ka1 Re8 Nc5 Qdg7 Nd7 Re5 Ra2 Bb1 Rc2 Bb4 f8Q Ba2 Qff6 Bf8 Qd6 Rd1 Qb4 e1B Qa3 Bd2 Qe7 Rb6 Bf3 Bg5 Bfg4 Kb7 c8N Rde1 Nd6+ Ka7 Be6 R5e2 Ne4 Kb7 Bd5+ Kc8 Bb7+ Kc7 Ne5+ Kb8 Ba6 Rb7 Nd7+
R1R2K2/1nnB1N2/Qkr1Q1p1/2n1pQ2/br1p1B1b/q2b3q/2nPB2R/1n6 b - - 0 1 legal: proof: g4 c5 e4 a5 b4 h5 e5 hxg4 e6 c4 Nc3 axb4 Ne4 fxe6 Nc5 e5 Nb3 cxb3 Bd3 e4 Ba6 Rh3 Bf1 Rh8 Ke2 d5 Ke3 Kd7 Kd4 Kc6 Ke5 b5 c4 g6 a4 e3 f4 b2 h4 b1N f5 g3 a5 d4 a6 e2 h5 e1N c5 b3 f6 g2 a7 b4 h6 b2 h7 b3 f7 Nh6 Qc2 Qa5 Rh3 Na3 Qc4 b1B Qb4 b2 Nf3 g1Q Be2 Nb5 Rh2 Nd7+ Ke6 Qg2 Ng5 Qa3 Qc4 Rb8 a8R Nf5 Ra2 Bh6 f8Q Qgh3 Kf7 Nc2 Ra1 Kc7 c6 Kb6 c7 Nc5 Ra2 Ba6 c8B Nc7 Bd7 Bb5 Qc8 Re8 h8Q Ba4 Qf8 Nd6+ Kg8 e6 Nf7 Ndb7 Ra1 Rd8 Qe8 Bg5 Kf8 Bh4 Ra2 Ne3 Ra1 Bd3 Ra2 b1N Rc2 Qa1 Ba3 Qb2 Rc1 Nc2 Bb4 Nb3 Bd6 N3c5 Bf4 e5 Be6 Rd6 Bd7 Qa2 Qee6 Qa3 Qf5 Rc6 Qe8 Nd8 Qee6 Ndb7+ Kg7 Nd6 Bg4 N7a6 Be8 Kc7 Bd1 Na1 Nh6 Ncb3 Qb4 Rc5 Rc4 Nc2 Be2 Rb6 Nf7 Nb7 Qc3 Rb4 Bc6 Kb6 Kf8 Rd5 Bd7+ Rd6 Rcc8 Nc7 Qcc4 N3c5 Qe7 Rf6 Qe8 Rd6 Qee6 Rc6 Qa6+
3r1QN1/2bbqp1Q/BRr1pn2/bnp3r1/K1R1B2r/3Qq2r/2PB3k/7R b - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 e4 axb4 Nc3 d5 g5 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 h4 Kd7 d4 Ke6 Kd2 Kf5 a4 c5 d5 b5 h5 e3+ Kd3 f3 g6 Kf4 d6 Kg3 g7 f2 d7 e2 a5 e1B h6 b3 a6 b2 h7 b1Q a7 e6 Bh3 f1R Be3 b4 Kc4 b3 Kb5 b2 Bd2 Na6 Qe2 Qe7 d8R Rf4 Rd7 Nc7+ Ka5 Nf6 g8Q Qc1 Ra4 b1R Nf3 Rb6 Qd3 Rc6 Rd6 Nb5 Bf1 Bd7 Rc4 Rd8 a8B Bh6 Qg7 Rd4 Ka4 Bf4 Qf8 Re4 Rdd4 Bc7 Ne5+ Re3 Be2 Kg2 Bb7 Rh3 Rd6 g3 Ng4 Rh4 Nh6 Rh3 Rf1 Kh2 Ng8 g2 Bf3 g1R Be4 Rg5 Ba6 Ba5 Rg1 Bg3 Re1 Rcc8 Rb6 Rc6 Rf1 Bc7 Nh6 Rhg8 h8Q Rh4 Qhg7 Rh8 Ng8 Rh3 Rg1 R8h4 Qh7 Qe1 Rf1 Qe3 Rh1+
n3rn1b/1kQ1QK1B/1p1p1RN1/r1QR4/pRb4q/1P1N3b/3r2rN/q2r4 b - - 0 1 illegal: No possible last move
qQB2r2/Np5K/1p4nQ/B1kq2rB/1bN1r1n1/bP1rp2Q/R5N1/1q3b2 b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 Ra3 c5 Rb3 cxd4 Rb6 axb6 Ke2 d5 f4 Kd7 g4 Kd6 c4 h5 g5 e5 f5 e3 Kd3 e2 f6 e1B a5 h3 b3 h2 f7 h4 a6 h3 a7 Kc5 g6 Nc6 g7 Nce7 Nf3 Rh5 Nh4 Nh6 g8B Bb4 Nd2 Rg5 Be2 Ng6 Qf1 Ng4 Ng2 Ba3 Rg1 h1Q Qf3 h2 Qh3 Bd6 f8Q Be7 Qfh6 e4+ Kc2 e3 Kd3 Bd7 Be6 Bb5 Bc8 Rb8 a8Q Qh8 Be6 Rf8 Bc8 Qg8 Rf1 Qg1 Bf3 h1Q Rf2 Bb4 Ba3 Qa1 Qb8 Qhb1+ Ke2 Qe6 Bb2 Qa8 Bc3 Ba3 Ba5 Qe5 Be4 Qd6 Bef5 d3+ Kf3 d4 Ke4 Qd8 Bfe6 Qd7 Bf7 Qd6 Nf3 Qd7 Ra2 Qd8 Ne5 d2+ Rc2 d3 Ra2 d1R Be8 Nh4 Bf7 d2+ Kf4 Kd4 c5 Qd5 c6 Bf1 c7 Beb4 Nc4 Rc1 Bd7 d1R c8N Rc2 Na7 Kc5 Be6 Rd3 Bc8 Nf5 Bh5 Ne7+ Kg3 Rcf2 Kh4 R2f4 Bd7 Re5 Bf5 Rfe4 Kg5 Nc6 Kg6 Ne7+ Kh7 Ng6 Be6 Rg5 Bc8
2Bb4/NKb2qnp/Rp2Qpb1/4r1BQ/7n/Q2R2rk/1P4nq/r2R2nB b - - 0 1 illegal: No possible last move
4rRn1/NN1K2bn/3B3b/3Q1r2/2Q4p/1p1r2q1/bP1bBQnp/1r2NB1k b - - 0 1 illegal: No proof kernel
n2Q4/4pRB1/1bb1kpnK/1r1N1rrR/4P3/3pQ1b1/2Nn1q1Q/2NRr1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 f5 cxd4 Bh3 g6 g5 gxf5 Bg4 hxg4 Ra2 f4 Ra3 Rh4 Ra1 Rh8 Kd2 a5 e4 d5 h4 Kd7 c4 f6 b4 f3 b5 a3 h5 g3 b6 g2 g6 f2 h6 f1R b7 d3 Ke3 d2 c5 a2 g7 a4 c6+ Ke6 c7 d4+ Ke2 a3 h7 d3+ Ke3 Bd7 c8R Nh6 g8N Rf5 Nh3 Qb6+ Rc5 Ra5 Ng1 Nf7 Qe2 d1R Nh6 Bc6 Ng4 Re1 Nc3 Rb5 Nd5 Nd7 b8Q Nfe5 Qd8 Rg8 h8Q Rgg5 Rh7 Ng6 Rf7 Bh6 Bd2 Qa7 Rd1 a1N Qh7 a2 Bc1 Bg7 Qh2 Nb3 Bd2 a1B Bc1 Nf4 Kf3 Be5 Nge3 Bh6 Nc2 Nb6 Qe3 Na8 Ne2 g1B Bd2 Qa2 Nc1 Bc7 Qb8 Bb6 Qd8 Rh5 Kg4 Ng6 Qeh3 Qa7 Bg5 Nd2 Qe3 Re5 Bf4 Rhf5 Bg5 Qa2 Bf4 Bg5 Kh5 Bh4+ Kh6 Bg3 Kh7 Nf1 Bh6 Nd2 Bg7 Rg5 Kh6 Ref5 Qhe2 Qb2 Qh2 Qd4 Qf3 Qf2 Qe3 Rb1 Ra5 Rb5 Qc5 Rb3 Nc3 Re5 Ra4 Rg4 Qe3 Rc5 Rd4 Rbb5 Rd5 Rf4 Rh5 Rg5 Nd5 Rf3 Qg8 Rff5 Qd8
2b1KR2/Q5Q1/1Nrqbr1B/1r1N1k2/pN1b1p1p/2R2Pb1/1Q2q3/Rnn1r3 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 h5 bxa4 e3 e5 h6 e4 Bd3 exd3 Kd2 gxh6 Ke1 h5 Ra3 h4 Ra2 Bc5 Ra1 Bf8 Kd2 Ke7 b4 Ke6 c4 h5 g4 d5 f3 a5 c5 f5 e4 a3 g5 a4 b5 h3 c6 h2 e5 h4 b6 a2 c7 Rh6 b7 Nc6 b8N Ra6 g6 Na5 g7 Qd6 Qb3 Ne7 g8R Rc6 Ne2 Rf6 Rd1 h1R Na3 Re1 Nc2 f4 Ba3 Kf5 e6 Bg7 Rac1 a1B Nc3 Re5 Rf1 Bf8 Qb2 Nb3+ Kd1 d2 Nd7 Bg7 Nb4 Re1+ Kc2 d1R Rf8 d3+ Kb1 d4 Ka2 d2 Nb6 d3 Ncd5 Bh8 Rc3 Rb1 Rh1 d1Q Rg1 Bb7 c8Q d2 Qd7 Bc8 Qa7 Qe2 Rf1 d1B Rg1 Ng6 e7 Nd2 e8Q Ne5 Qee7 Nd3 Qg7 Bc2 Na6 Be6 Bc5 Bb3+ Ka3 Nc1 Kb4 Bc8 Ka5 Ba2 Nab4 Bc4 Nc7 B4e6 Ncd5 Qd8 Be7 Qd6 Rh1 Rf7 Bg5 Rf6 Qa3 Rb2 Bh6 Nb1 Qa2 Qd2 Kb5 Qe2+ Rd3 Rb3 Qd2 Bc3 Qb2 Bd4 Rf1 Bf2 Rg1 Rc4 Rc3 Bg3 Nc7 Na3+ Ka5 Nd3 Na2 Rc1 Ncd5 Rf7 Qg8 Bd4 Qg7 Rf6 Rf1 Bcd7 Ka6 Rb5 Kb7 Rc6 Nab4 Rd1 Rf2 Rh1 Rf1 Rg1 Ra1 Re1 Rd8 Nb1 Rf8 Qde5 Rca3 Nc1 Rc3 Rd6 Kc7 Rc6+ Kd8 Bc8 Ke7 Qd6+ Ke8
K5nR/npRbp2N/2rQ4/5Q1k/qpnrP3/Rr1B1N2/1b3n1r/4N1qQ b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 Kd2 Kf7 Kd3 Kg6 Kc4 d5+ Kc5 g2 f4 d3 e4 d4 h4 g3 a4 d2 c4 d3 a5 Nc6 a6 Qd5+ Kb6 Qe6 a7 Qd7 Nf3 g1R f5+ Kh5 c5 g5 f6 g2 f7 g4 Ra3 Bg7 f8N g3 Nh7 Bb2 Be2 Rf1 Ne1+ Rf3 Rf1 Rb8 a8Q g1R Qa6 Na7 c6 g2 c7 Qa4 Rf2 Bf5 c8Q Bd7 Kc7 Rf1 Qd6 g1Q Qf8 Rd8 Qf5+ Qg5 Qc1 d1N Nd2 Ne3 Rh2 Nc4 Rh3 Nc8 Kb8 Rh1 Qb1 Rh2 Bf1 Rg3 Ndf3 d2 Bd3 d1N Qc1 Rc2 Rh2 Rc3 Rc2 Nf2 Qb1 Rb3 Qc1 Rg2 Qd1 Rh2 Rc1 Na5 Ka8 Na7+ Rc8 Nc4 Qa1 Rf8 Qb1 Rf6 Rc7 Kh6 h5 Qg1 Qdd5 Rc6 Qd6+ Kg7 Nf8 Rh6 Nh7 Rf6 h6+ Kf7 Qfe6+ Kg6 Qc1 Kh5 Qf5+ Qg5 Nf8 Re6 h7 Re5 Qb1 Rd5 Qd1 Rd4 h8R+ Nh6 Nh7 Ng8 Ng2 Ng4 Qh1 Nf2 Qff6 Qg6 Nge1 Qg1 Qf5+
4K2B/3n2pp/bnn1Nbk1/2BQnR2/1Qr5/R1pR1B1P/rrQ5/1rq3q1 b - - 0 1 illegal: Other
Q1b5/pB5K/Pbr5/1RQp4/RRr2Nb1/2rQ1p1n/kN2Npqb/3n3b b - - 0 1 illegal: No possible last move
kb3n2/1n3R1b/2rpB2r/1Q2b3/p4rNQ/Kb1Pn1BR/p2pQ3/R4q1B b - - 0 1 legal: proof: g4 c5 f4 h5 a4 hxg4 f5 b5 f6 bxa4 d3 c4 Ra2 c3 Nd2 cxd2+ Kf2 exf6 Ra3 f5 Ra1 f4 b4 a5 c4 g5 e4 f5 Ke2 a3 h4 f3+ Ke3 d6 Kd4 Kd7 Kc3 Kc7 Kb3 Kb7 h5 a2 c5 g3 b5 g2 b6 f2 h6 f4 e5 a4+ Kb4 f3 e6 g4 e7 g3 e8R Bf5 h7 Ra6 c6+ Ka8 c7 Nh6 c8B Bg7 Qe1 Nd7 Qe3 Nf7 Qh6 Qf6 Rh2 Nf8 Qh5 Nd8 Rb1 Nb7 Nh3 g1B Re7 g2 Rf7 Bg6 Be2 f1B Ra1 f2 Bf3 Be2 Be6 f1N Nf2 Ne3 Bb2 Bd1 Ng4 Bb3 Rh3 Bf2 Bd4 g1R Ka3 Rf1 Be5 Qf5 Bh2 Be5 Bg3 Bg1 Bh1 Rf4 Nf6 Bf2 Qe2 Bg1 Rh5 Qh3 Ng4 Qf1 Rh6 Ra5 Rh3 Rc5 Bf3 Rc6 Bh1 Rg8 h8Q Bh7 Qf6 Rg6 Qg5 Rh6 Qh4 Bh2 Bd7 Bf6 Bc8 Bd8 Be6 Bc7 Rd1 Bb8 Ra1 Nd8 b7+ Ka7 Re1 Rfc4 Re7 Bc7 Bf2 Be5 Rf7 Rf4 b8Q+ Ka6 Qb4 Ka7 Qc5+ Ka8 Qb5 Bb8 Ra1 Nb7 Bg3
3q4/K2nr2n/Rpppb1r1/R1nq2B1/1pQnN1Q1/3nk1B1/1P1bB3/2RQ4 b - - 0 1 illegal: No proof kernel
1n1Kn2b/RR1b1r2/3q4/Nr1N1qBp/p1Q1p1k1/n6P/1Q1n2p1/1rQ3NR b - - 0 1 legal: proof: e4 b5 g4 d5 b4 dxe4 a4 bxa4 g5 c6 b5 f6 b6 fxg5 Be2 g4 Bb5 cxb5 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Ke3 Kf5 f4 a5 d4 g5 c4 h5 b7 b4 c5 b3 d5 g3 d6 g4 d7 b2 c6 g2 c7 g3 Qd6 a3 Ra2 a4 Qd4 Rh7 Qb4 Ra5 Qc4 Kg4 f5 Bg7 f6 Rb5 f7 Bh8 f8R Rf7 Nc3 b1N Nd5 Nf6 Rb2 a2 Rb4 Qe7 d8N a1N Nc6 Bd7 c8Q Ne8 Na5 Nb3 Q8c5 N3d2 Qc7 Rf5 Rf7 Na3 Q7c5 Qd6 Rb3 Nc6 b8Q Rf6 Qbb6 Nb8 Re7 Rf7 Qc8 Bf5 Ra7 Bd7 Qbd4 Na6 Qb2 Nb8 Nh3 g1R Q8c7 Rd1 Ng1 g2 Q7c6 Rc5 Rbb7 Rb5 Q6c5 Nb3 Bd2 Rb1 Qcc1 Bf5 Q5c4 Bd7 Be1 Nd2 Bh4 Rf6 Bg5 Rf4 Ke2 e3 Kd3 e2 Ke3 e1Q+ Kd3 Nf6 Kc3 e4 Kd4 Qb6+ Ke5 Qf1 Qbb3 Qd4+ Kd6 Ne8+ Ke7 Rf7+ Kd8 Qf5 Qbb4 Qc5 Qbb2 Qd6 h3+
BR2q3/1R2N2b/q1bNq3/Q3R1Kn/N2q4/1nq5/1N1r2Pb/3nNk2 b - - 0 1 legal: proof: b4 a5 h4 e5 f4 exf4 a4 d5 c4 g5 cxd5 gxh4 bxa5 b5 Ba3 bxa4 Bc5 Ra7 Bxa7 a3 a6 Nc6 Bb8 Nxb8 Kf2 Kd7 Kf3 Kd6 e4 Kc5 d3 Kd4 d6 c5 a7 h5 a8R f5 e5 c4 e6 a2 d7 h3 e7 h2 e8N c3 Nh3 c2 Ng1 c1Q Ra6 h4 Nd6 h3 Ra3 Qc3 Nd2 Qe8 d8N Nd7 N2e4 Ngf6 Be2 Nc5 Ng5 Bd7 Nc8 Nh5 Rb3 Bd6 Qe1 Bc6+ Ne4 Rg8 Rb2 Nb3 Rab1 a1Q Nb7 Rg7 Nb6 Rd7 Na4 Bc7 Kf2 f3 Na5 f4 Nc4 Bb8 Ned6 Qa2 Kf1 f2 Bf3 Qa1 Be4 Qe6 Ke2 f1B+ Kf2 f3 Re2 Bc7 Ncb2 Bb8 Re3 Be2 Bd5 Bd1 Re5 Bc2 Kf1 f2 Ke2 f1N Kf3 Ne3 Qd2 Nd1 Be4 Qe7 Kg4 Qe8 Kg5 Rd8 Qf4 Qa3 Qf5 Ke3 Nf3 Ke2 d4 Qe6 Rf1 h1Q d5 h2 Ne1 Qg1 Rf4 h1Q Rh4 Nf6 Rh7 Nh5 Rb7 Qgd4 Nc8 Qad6 Rb5 Bb7 Nc4 Ng7 Ne7 Qdg1 Qg4+ Kf1 Rf5+ Qf2 Rf8 Qc6 d6 Nd2 d7 Qa6 Qf5 Qh8 R1b3 Nh5 Ncb2 Bh2 Rd5 Rb8 d8N Bd3 Nf7 Rd8 Rb4 Nb3 Qe5 Rd6 Rb8 Qe8 Ra5 Rd5 Nd6 Bb1 Bf3 Rd2 Rb6 B7e4 Rbb5 Bh7 Ba8 Qfd4 R5b7 Bbe4 Qc5 Bf3 Qb6 Bfe4 Re5 Bc6 Qa5
1B5R/2q1q3/B1P1Q1nr/Bqr2N2/4k2q/nN2p2q/2b1r3/rNNN2K1 b - - 0 1 legal: proof: b4 b5 a4 g5 d4 c5 h4 gxh4 a5 cxd4 a6 e6 e4 Bc5 bxc5 f5 Ra5 b4 Rb5 fxe4 Rb6 axb6 cxb6 Qc7 b7 Qb6 a7 Qd8 c4 Ke7 f4 Kd6 Kf2 h5 g4 e3+ Kg2 e5 g5 h3+ Kh2 e4 g6 h4 c5+ Kd5 c6 d3 g7 e2 f5 e1Q f6 b3 f7 b2 f8N d2 Qc2 d1R Bf4 Rc1 Be2 Qc7 Qa4 Na6 b8B Rh6 Qb4 Rc5 Bd1 Ne7 g8N Ng6 Qc3 Nb4 Ba4 Nc2 Qf6 Na3 Nd2 b1Q Qc3 Qb5 Ne6 e3 Nb1 Ke4 Ne2 d5 Qf6 d4 Bd6 d3 N6d4 d2 Nb3 d1Q Ne7 Bf5 Nec1 Qef1 Bf4 Qdd6 Qe6+ Qe5 Bg3 Qfc4 Kg1 h2+ Kg2 Qd4 Be1 Qdd7 Ba5 Qdd8 Rf1 h1R Rf2 Rh2+ Kg1 h3 Rb2 Bg4 Nf5 Bd1 Rd2 Qde7 Rd8 Re2 Rh8 Qc4 Bb5 Bc2 Ba6 Qb5 Bb4 Qh4 Ba5 Qce7 Bbc7 Rc8 a8N h2+ Kh1 Qh3 Nb6 Ra8 Nc4 Ra7 Bb8 Qc7 Qd6 Qee7 Nb2 Qhh4 Nd1 Qh3 Qg3 Ra8 Qf2 Qhh4 Kg2 Ra7 Kf1 h1Q+ Qg1 Q1h2 Qf2 Q2h3+ Kg1 Ra8 Qg3 Ra7 Qd6 Ra8 Bb6 Ra7 Bb7 Nc4 Bc8 Ra2 Ba6 Na3 Ba5 Ra1 Qe6+
1Q2qB1B/1p6/nN1p1P1r/bB3r1k/1rBR1qn1/8/1pp1q3/R4BRK b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 c5 h4 cxd4 Nc3 gxh4 Qe2 dxc3 Qe6 d6 Qd7+ Kf7 Qxc8 Ke8 f4 Kf7 Kf2 e5 a4 h5 g4 e4 Kg2 e3 c5 b3 f6 Kg6 a5 e2 g5 e1R f7 c2 a6 Bg7 f8B Rh6 c6 Re5 a7 Na6 c7 Nf6 Nf3 Rf5 Bb2 Qe8 Nd2 Ng4 Nc4 Bc3 Qb8 Ba5 Bh8 b2 Rg1 h3+ Kh1 h2 c8B h4 Bd7 Kh5 g6 Qe2 g7 Qe8 Qd8 Rc8 Nb6 Rc4 g8B Rb4 a8R Qe2 Bb5 Qe8 Kg2 h3+ Kg3 h1Q Bgc4 h2 Qb8 Qhe4 Ra7 Q4e5 Kg2 Qe2+ Kh1 Re5 f5 Rc5 f6 Rf5 Ra4 Nf2+ Kg2 h1Q+ Kg3 Qhc6 Kh2 Qcf3 Ra1 Qfe4 Rd1 Q4e3 Rd4 Ng4+ Kh1 Qf4 Re4 Nc7 Nd5 Bb6 Ra1 Ba5 Rd4 Na6 Nb6
1r2q1bK/R1bRb1N1/Rn2q3/2nBq1N1/2nN4/1k6/3RR1P1/brr2qQ1 b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Bd2 gxh4 Bc3 b5 axb5 dxc3 Kf2 Ke7 Kf3 Ke6 Kg4 a5 Kh5 f5 e4 d5 b4 f3 c5 d4 c6 c2 b6 c1B b5 a4 b7 a3 e5 Kd5 e6 d3 b6 Kc4 e7 h3 e8R a2 c7 f2 Rh2 f4 Nf3 Ne7 Qd2 Nd7 b8R Nd5 b7 Nc5 Qb2 Be6 Ne1 f3 c8N Bf4 Be2 f1N Qf6 f2 Qh4 Nd2 Bg4 Bc7 Rh1 h2 Rg1 h1Q Nc2 Qh3 Nc3 f1R Rd1 a1B Ne7 Ra4 Kg5 h5 Kg6 Rb4 Ne4 Rb1 Qf2 h4 Bf3 Kb3 Ra8 Nc4 b8R+ Ndb6 Ra6 d2 Ng5 Qh2 Rb7 h3 Qd4 Qhd6 Nf5 h2 Bc6 h1Q Rba7 Qh3 Ng7 Bd5+ Re6 Be7 Rh1 Qf4 Re2 Qe5 Qf2 Qg4 Rh6 Qdd7 Qg1 Rb8 Kh7 Bg8+ Kh8 Qe8 Rd6 Qge6 Rd7 Re1 Bd5 Rf1 Rde1 d1Q Rd2 Qf3 Re4 Rfc1 Ree2 Qf1 Nd4+
1b4r1/6kB/1R3r2/4Pb1R/nRB1bQ1N/q2r1p1B/1q5r/1BnBKn1r b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 g5 d4 c5 b4 cxd4 Na3 axb4 Nc4 h6 Bf4 gxf4 g5 h5 Ne3 Ra4 Ng4 hxg4 Qb1 Ra3 Qd1 Ra8 h4 f5 e4 Kf7 a4 d5 c4 b5 e6+ Kg7 h5 b3 a5 g3 a6 f3 g6 d3 a7 b4 e5 d4 e7 f2+ Kd2 f4 e8B f3 c5 b2 c6 b1Q c7 b3 Nh3 g2 Be2 g1R Nf4 f1N+ Ke1 b2 Ra3 d2+ Kf2 d3 Qc2 d1R Qc1 d2 Ra6 Bd6 Ng2 Ne7 Bd3 Nbc6 Nh4 Na5 Ba4 Nb3 Bc4 Qf8 Rb6 Bf5 c8B Bb8 B8e6 Be4 Bh3 Nc8 Rh2 Qa3 h6+ Kf8 h7 Kg7 Rg2 Rh1 Rg4 Qba2 Rf4 b1B Rg4 Rg8 h8R Q2b2 Rh5 Re1 Rf4 d1R+ Qd2 Nc1 Rg4 Qbb4 Qf4 Rd3 Bab3 Red1 Ba4 R1d2+ Ke1 Qbb2 Bc2 Bc7 Bd1 Rb8 a8B Rdh2 Bad5 Rf8 Bg8 Rf6 Bh7 Bc2 Ba2 Ra8 Bb1 Bb8 Qg5 Bf5 Rgb4 Be4 Qf4 Bf5 Re6 Nb6 Rc6 Na4 Rd6 Kf8 g7+ Kf7 g8B+ Kg7 Rbb6 Rd5 Rb5 Bce4 Rb4 Rd3 Be6 Ba7 Bf7 Rg8 Bc4 Bb8 Rdb6
1n4B1/r1R2bQP/8/q2R1Nk1/1r2B3/nq2br2/R3p1KB/bbbn1R1R b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 Nd2 gxf4 Ndf3 h6 g5 h5 Ne5 Ba6 Ng4 hxg4 Rb1 Bb7 Ra1 Bc8 Kf2 Kf7 b4 Kg6 h4 d5 c4 a5 b6 e5 c5 g3+ Kg2 e3 b7 e2 c6 e1R b5 e4 c7 e3 b6 a4 Qg4 a3 Bb5 a2 Nh3 d3 Ba4 d2 Kf3 d1Q+ Kg2 d4 Bb2 d3 Nf2 f3+ Kh3 g2 Qd7 g1B Bd4 d2 Bc5 Bh6 Ne4 f2 Bd6 Qb3 Ng3 d1N Nf5 Ne7 Bc6 Ra7 Be4 Rf1 Kg2 Nd5 Bh2 N5c3 Qg7+ Kh5 g6 Be6 c8R Bf7 Rb1 a1B Rc7 Nb5 Rbc1 Kg4 h5 Na3 R1c5 e2 Rd5 Bc1 h6 Kg5 h7 Rf8 Qg8 Re8 g7 Re6 Qf8 Rc6 g8B Rc4 Rd2 Rb4 Ra2 Nc6 b8R Qdd5 b7 Qa5 Rd8 Nb8 Bb1 Re1 Rd3 f1B+ Kg3 Bge3 Rd5 Bg2 Be4 Bf3 Kh3 B3h5 Qg7+ Bhg6 Kg3 Rf1 Kg2 Nd7 b8R Rf3 Re8 Nb8 Rf8 Ra4 Nd6+ Rf5 Re7 Rb4 Bc2 Be8 Rf6 Bf7 Rc7 Re5 Rff1 Rf5 Rd4 Rf3 Rd5+ Kh4 Bd3 Be4 Nf5+ Kh5 Bc4 Bc2 Bd3 Bb1 Qf8 Kg6 Be4 Kg5 Qg7+
1b2BBbK/3N4/1bb2n1N/4rN2/1qR4N/k3rN1q/1QPB3p/1bq1q2n b - - 0 1 legal: proof: b4 c5 h4 e5 d4 cxd4 f4 exf4 a3 g5 Nc3 gxh4 a4 b5 axb5 d3 Ba3 d2+ Kf2 Ba6 Rc1 dxc1Q Ke1 Bc8 Kf2 Ke7 Kf3 d5 e4 Kd6 g4 a5 g5 h5 g6 f5 b6 h3 b7 h2 g7 h4 Bb2 d4 b5 Kc5 b6 Kb4 e5 a4 e6 h3 e7 a3 e8N d3 Nge2 d2 Nd6 a2 Ndb5 a1B Nb1 Nd7 b8N Qh4 b7 Bd6 N5a3 Rh5 Nb5 Nc5 N1a3 Nf6 g8N Nce4 Ne7 Nf2 Ng1 Be6 Ng6 Bg8 Be5 Bd4 Nc4 Ra3+ Ne3 Bb6 Nd7 Bb8 Nd6 Rc3 Nf7 Ka3 Nh6 Ba2 Ng8 Bb1 Bb5 Rg5 Nh6 Rd3 Qe2 d1Q Bc3 Qe1 Bd2 Rb3 Qc4 Rd3 Ne2 Rb3 Rg1 h1B+ Rg2 h2 Ng1 N2e4 Qc3 Ng3 Qd4 Qh3 Nh4 Qb2 Nc5 Rd3 Be8 Qb4 Nd7 Qc1 Kf2 Rh5 Ngf3 Rc3 Ne1 f3 Rg1 f4 Nef5 Re3 Rf1 B8a7 b8B Bg2 Bd6 Bb8 Bf8 Rg5 Ng7 Rge5 Rg1 Bf1 Ngf5 Bc4 Rf1 Bg8 Rg1 Ne2 Rg4 Ng3 Nhg2 Qh5 Ngh4 Nh1+ Kf1 f2 Kg2 f3+ Kh3 Qf7 Re4 Qh7 Rf4 Nh5 Kg4 f1B Kg5 f2 Nef3 Nf6 Rg4 Bg2 Re4 Qhe7 Kg6 f1Q Rg4 Qe6 Kg7 Qfe1 Kh8 Qb3 Qd5 Qd3 Rc4 Qc3 Qd4 Qd3 Ng1 Bc6 Ngf3 Qdf1 Nc5 Qg2 Nd7 Qh3 Qb2+
1KB3R1/R3q1qq/b1Br4/1R3PbB/1pBn4/q5QN/1k5r/q1r1n1Br b - - 0 1 legal: proof: c4 a5 e4 f5 d4 g5 b4 axb4 h4 gxh4 Nd2 e5 Nb3 d6 Nc5 d5 cxd5 exd4 e5 Bg7 Ne4 fxe4 Qd3 Bh6 Qd1 Bf8 Kd2 Kd7 g4 b5 f4 h5 a4 c5 f5 b3 g5 b2 e6+ Kd6 e7 Ke5 e8B b1Q d6 b4 a5 c4 a6 e3+ Ke2 c3 Kf3 c2 g6 d3 d7 Kd4 Kf4 Kc3 Ke5 e2 g7 e1R+ Kd5 d2 a7 h3 Bd3 h2 Be4 h4 Bh5 h3 Qe2 d1Q+ Bd3 Nf6+ Ke5 Qe7+ Kf4 Ne4 d8R Ba6 g8B Nc6 Bd5 Nf2 Rd6 Rd8 a8B Qb2 Qg4 Nd4 Be3 c1Q Rb6 Rd6 Be6 Bh6+ Ke5 Bg5 Qg3 Qf3 Ra5 Qca1 Bc6 Rc1 Rbb5 Qba3 Ra4 Qg4 Bc4 Kb2 Raa5 Bc8 Ra7 Ba6 Nf3 Rh6 Rg1 h1Q Rg2 h2 Ng1 Rh8 Nh3 Rh6 Rg1 Rh8 Bd7 Qb7 Bc6 h1R Rg2 Qh7 Bed7 Qe2 Bc8 Nd3+ Ke4 Rg6 Kd5 Qbg7 Bg1 Ne1 Kc5 Rd6 Kb6 Be7 Kc7 Bg5+ Kb8 Rh2 Rf2 Rh1 Rf4 Qee7 Re4 Qhg8 Re6 Rh6 Rf6 Q8h7 Rf8 Rh2 Bhe8 Rh5 Rg8 Rh4 Bh5 Rh1 Nf2 R4h2 Nh3
1R1R4/2n2B1p/r2P1nRB/8/b1bQ3K/1NrRqR2/k3rr1b/1b2qnB1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 Kf2 Ke7 g4 Ke6 e4 c5 d4 f5 e5 Kd5 g5 h3 g6 f3 Kg3 f4+ Kf2 h2 b7 c3 g7 c4 b6 c2 e6 b3 e7 b2 e8R b1B Qd3 c3 Qg6 Qh4+ Qg3 Bd7 Bd2 c1R Be1 c2 Bb4 Na6 b8R Ba4 b7 Nf6 g8R Nc7 Ra3 Bd6 Rg6 Rf8 Bd2 Ra6 Ne2 Kc4 d5 Qh6 Rd3 Re1 Qg1 c1R Bg2 Rc3 Red8 Kb3 Nd4+ Ka2 Nb3 Be5 d6 Re2+ Kf1 f2 Bd5 Rf7 Kg2 f1N+ Kf3 Rf8 Qd4 Qg5 Rg1 h1Q+ Rg2 Qhh4 Bf7 Qe1 Rf2 Qh6 Kg2 Qg5+ Kh3 f3 Bc1 Qe3 Kh4 Bh2 Bd2 Qe8 Bh6 Qe7 Rg3 Qe3 Rfg2 f2 Rf3 Nd2 Rg1 f1B+ Rgg3 Rf2 Rg6 Re8 Rbc8 Be2 b8B Nf1 Ba7 Re6 Rb8 Re5 Rd1 Bc4 Rd3 Q3c1 Qc5 Ree2 Qd4 Qe3 Rf8 Q3c1 Qe5 Rg2+ Bf2 Qe3 Rfd8 Q1c1 Bg1 Rgf2 Qc5 Qe1 Qd4
rk4N1/4bb1p/5b1P/nb2b1r1/1Q3NnR/1n3K2/bNBR2Nr/2bN2R1 b - - 0 1 legal: proof: e4 a5 f4 d5 b4 axb4 c3 bxc3 Bd3 dxe4 Bf1 e3 f5 e5 Bb2 g5 Ba3 e4 Bd6 Qd7 Bf4 Qe6 fxe6 gxf4 Ke2 Ra5 a4 Kd8 h4 b5 d4 f5 g4 c5 e7+ Kc7 e8R c2 h5 c1N+ Ke1 f3 h6 c4 g5 f4 d5 e2 Kf2 c3 g6 c2 g7 b4 Rh2 b3 Na3 b2 Ra2 b1B Qd2 Nb3 Rh4 c1B Qc3+ Nc6 Qb4 Be6 Nc4 Bf7 Rb2 Ba2 Ne3 Nf6 Nd1 Rc5 Nh3 e1B+ Kg1 e3 a5 e2 a6 f2+ Kg2 Nca5 a7 Bd6 Rg8 Bc3 Rd2 Rb5 a8N+ Kb7 Re8 Ng4 Nb6 Bf6 Nc4 Kc7 Re3 Ra8 g8N Bde7 d6+ Kb8 d7 f3+ Kg3 Bf8 d8N B8e7 Bg2 f1R Ne6 f2 Ncb2 Rh1 Be4 f1B Kf3 Rh2 Bc2 e1B Rde2 Bec3 Rd2 Bd3 Re1 Bcd4 Rg1 Bf1 Nhf2 Bc3 Nfd3 Bcd4 Ne1 Bc3 Qd4 Rg5 Qb4+ Bb5 Nf4 Bce5 Neg2
n2q3b/2R1b3/1b6/rq1b4/N1Bb1R2/1R1KBn1R/QBn1Pp1R/1k1n2b1 b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 b5 Na3 h5 Ng1 f5 Nc2 f4 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Bd6 Ng4 hxg4 Qa4 Bc5 Qd1 Bf8 h4 Kd7 a4 Kc6 d4 Kd5 Kd2 g5 a5 c5 f6 g3 f7 g4 h5 g2 a6 f2 h6 c3+ Kc2 Kc4 d5 b3+ Kb1 f3 a7 b4 a8R c2+ Kb2 g3 d6 Nc6 h7 Nf6 d7 Nd5 Rh2 Bb7 Rc8 Nd4 Qd2 Be7 f8B Nb6 Bh6 Na8 Bg7 Bd5 Nh3 g1B Ra5 g2 Ka1 b2+ Ka2 b1N Kb2 b3 Rb8 Na3 Ka1 b2+ Ka2 b1N Kb2 Nc3 Ng5 Nd1+ Ka2 Re8 Bb2 c1B h8R Nac2 Kb1 Rg8 Qe1 Be3 Rb3 Rf8 Ne6 Rf5 Ra7 Re5 Rbb7 Rg5 Rc7 Kb3 Bh6 c4 Ra4 c3 Rac4 Re5 Bg5 Rf5 R8h3 Re5 Qd2 Rf5 Kc1 Ka2 Nc5 Be6 Rh4 Qg8 d8R Na1 Re4 c2 Na4 Ra5 Rdc8 Qd8 Ba3 Bg8 Rh8 Bh2 Rd7 g1B Reh4 Be5 Bg2 f1Q Rb7 f2 Bd5 Qh3 Rb3 Qg4 R8c7 Qh5 Rh2 Nf3 Rd4 Qhe8 Bc4 Qb5 R8h3 Bd5 Rg4 Ba7 Qb4 Bad4 Be3 Bh8 Rf4 Ne5 Kd2 Nf3+ Kd3 Bb6 Qc3 c1B Qb4 Nc2 Qc5 Bcb2 Qd6 Bbf6 Bb2 Bfd4 Qa3+ Kb1 Qa2+
nRnrB3/2nqn1qB/1Bn2k1q/3p2PB/2nR4/1K2B1b1/Q2R1qN1/6r1 b - - 0 1 legal: proof: f4 g5 g4 f5 d4 c5 e4 cxd4 Nc3 b6 Nce2 fxe4 f5 Ba6 Nf4 gxf4 b4 Be2 g5 a5 h3 Bg4 hxg4 axb4 Kd2 Kf7 a4 d5 c4 h5 Kc2 e5 g6+ Kf6 a5 b3+ Kb2 b5 g7 b4 c5 e3 a6 e2 c6 e1Q c7 h4 c8R f3 a7 f2 Ra3 d3 Be2 f1N Bf4 h3 Qc2 e4 Qd2 e3 Rc3 h2 Rc7 Qd7 Bf3 e2 Bd6 Ne7 g8B Nc8 Be6 Qf2 Bc5 e1Q Bf7 Qe5+ Bd4 Bd6 Qe2 d2 Qe3 Rd8 Bh5 Nc6 Ra5 Ng3 Be4 Rb8 a8B d1N+ Kb1 b2 Ka2 b1N+ Qe2 Nd2 Ra4 Rb5 Rb7 Nb2 Be3 Ndc4 Kb3 N4b6 Nh3 N2c4 Rd1 h1Q Rd2 Qee7 Bc2 Qg7 Rb8 Qhh2 Bb7 Na8 Nf4 Ra5 Ng2 Ra7 Bf7 Qhh6 Bh5 Bf4 Bb1 Be5 Ba6 Bc7 Bb5 Rb7 Kc2 b3+ Kc3 b2 Kb3 Bd6 Bc2 b1N Be4 Nb2 Rad4 Nc3 Qc4 Be5 Qa4 Nc4 Qa2 Ra7 Ba4 Nb5 Bd3 Ke7 f6+ Ke6 f7 Kf6 f8B Nbc7 Ba3 Nf5 Bc5 Bg3 Bb6 Nfe7 Bh7 Ra6 Bb5 Ra7 Qc2 Ra1 Qa2 Rg1 Ba4 N6e5 Bb5 Qe6 Bd7 N5c6 Bde8 Qd7 g5+
B3R1B1/PK1bN3/B4B2/2bp3b/1bp1kB2/r3Qr1N/2b1Nrn1/qn3q2 b - - 0 1 legal: proof: e4 c5 b4 f5 exf5 g5 h4 gxh4 c4 Qa5 a4 Qd8 d4 cxd4 b5 a6 c5 axb5 Ra2 Bh6 Rc2 Bf8 Rc4 bxc4 Ke2 Kf7 Kf3 Kf6 Ke4 b5 Kd5 e5 f4 h5 g4 d3 c6 d2 a5 b4 a6 h3 c7 e4 Ba3 h4 Qe2 d1B Nf3 b3 Bb4 h2 Qe1 b2 Nc3 b1B Na2 h3 Bg2 e3 Qg1 e2 Bd6 e1B Nc1 Nh6 Qe3 Bb4 Ng1 Nc6 Nce2 Na5 a7 Nb3 Bf3 Nd2 Bg2 Bbc2 g5+ Kg7 g6 Kf6 g7 Ng4 g8B Nb1 Be4 Be7 Bf3 Qf8 Bg2 Rh7 Be4 Rf7 Bf3 Ba6 c8B Bb5 Ba6 Bba4 Bc7 Bec5 Bg2 d6 Bb8 Bd7 Bf3 Bc8 Kc6 Bd7+ Kb7 Qg7 Bc6 d5 Bd6 Raf8 Be5+ Ke7 f6+ Ke6 Bc3+ Kf5 Ba1 Re7 f7 Re4 Bc3 Rd4 Bb2 Rd3 Bd4 Ra3 Bf6 Re8 f8B Re6 Qd4 Ne3 Bd6 Ng2 Qe3 Re7 Bc7 Qh8 Bce5 Rg7 Bc7 Rg3 Bd6 Rf3 Bb8 Kg4 f5 Qg7 Bf4 Rf2 Bh4 Qa1 f6 Kf5 f7 Rf3 f8N Rf2 Qb3 Ke4 Ng6 Rf3 Bf6 Rf2 Nc1 Bh5 Ne7 Rf3 Nge2 Rf2 Re1 h1Q Nd3 h2 Qc3 Qf1 Qd2 h1R Qc3 Rf3 Qd2 Re3 Nf2+ Kf3 Nh3 Ke4 Kc7 Rf3 Ba8 Rh2 Kb7 Nh4 Qc3 Rhf2 Ng6 Ng2 Qe3+ Kf5 Ne7+ Kg4 Nc1 Bda4 Qe6+ Bf5 Ng6 Bd7 Qe7 Bc2 Re3 Kf5 Ne2 Bb6 Re6 Bd4 Qc5 Be3 Re8 Bd4 Ne7+ Ke4 Qc6 Be3 Qa4 Bd4 Qb3 Bdc5 Qe3+
3r4/brRBqB1N/3R3n/1r4P1/2rr4/2BB3p/1R1p1bn1/k1rr1BQK b - - 0 1 legal: proof: f4 g5 g4 f5 d4 c5 e4 cxd4 Nc3 b6 Nce2 fxe4 f5 Ba6 Nf4 gxf4 b4 Be2 g5 a5 h3 Bg4 hxg4 axb4 Kf2 Kf7 Kg2 e5 a4 d5 c4 h5 g6+ Kf6 g7 d3 c5 b3 c6 e3 c7 e2 c8B e1B a5 h4 a6 f3+ Kh2 b2 a7 b1R Bh3 d2 Ra4 e4 g5+ Ke5 f6 f2 f7 f1R Bg2 b5 Be6 e3 Ra3 Kd4 Qc2 d1R Nh3 e2 Qh7 b4 Ng1 h3 Qh6 b3 Be3+ Kc3 Bf5 Kb2 Bf3 d4 Ra6 d3 Qb6 d2 B3g4 Rh4 Nf3 Nc6 Ne5 Bf2 Ng6 e1R Bd3 Nh6 g8B Nd4 Bd7 Bc5 f8R Ne2 Rf7 Rc4 Nf8 Qe7 Nh7 Rd8 a8B Nf4 Bg2 Rdc1 Rg7 Red1 Bf7 Rd4 Qa7 Rcc4 Rd6 Rg1 Bgf1 Ng2 Qb6 Ka1 Bf4 b2 Be5 Rg4 Bc3 Rgd4 Bfe2 Rge1 Bf1 Re5 Rg1 Rbc1 Kh1 Red5 Qb5 Ba7 Qb6 Nf4 Rg4 Ng2 Re4 Rdc5 Re5 Rc7 Rb5 Rb7 Rb4 Ka2 Qc5 b1R Rb2+ Ka1 Qf5 Re1 Qg4 Re5 Qg3 Reb5 Qh2 Rd1 Qg1 Rbc1 Rg8 Rdb8 Rc8 Ra8 Rc5 Rd8 Rc7
4b1rr/8/qB1pN2n/1P2b1q1/1nR2QN1/1nBq1N1b/Nbk1pKB1/6N1 b - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 g4 c5 e4 cxd4 a4 gxf4 g5 b5 axb5 fxe4 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 c4 Kf7 h4 Ke6 g6 Kf5 g7 a5 c5 e5 c6 g3 b6 g2 h5 a4 h6 e3 c7 Ke4 b7 a3 h7 e2 Qd2 d3 Qd1 a2 Qa4 a1N Qa6 f3 Qh6 f2+ Kd2 e1B+ Kd1 d2 Ke2 Na6 b8N Nb3 Nc6 Bd6 Nd4 Rb8 Qg5 Nh6 g8N Qf6 b5 Nb4 Ndf3 Ra8 Nh3 g1Q Bg2 Bb7 c8N Bc6 Nce7 f1B+ Kd1 Kd3 Nc3 e4 Nf5 e3 Na2 Rd8 N5d4 Be5 Ne6 d6 Ba3 Be8 Qf4 Qg5 Nf6 Bg3 Ng4 Bb2 Rh2 Rg8 h8B Ra8 Qf8 Bge5 Qf4 Qf2 Nhg1 Rb8 Bh1 Bh3 Bg2 Qfh4 Nc1+ Kc3 Ke2 Kc2 Na2 Qg3 Rh1 Qh2 Kf1 e2+ Kf2 d1Q Bf6 Qa1 Bd8 Rh8 Bb6 Qg3+ Ke3 Nc6 Bb4 Rd8 Bc3 Nb4 Nc1 Qa6 Na2 Qe1 Rh2 Qd2+ Kf2 Qd3 Bh1 Bg2 Rh4 Bh3 Bg2 Bf7 Qd4 Rdg8 Qc4 Be8 Qf4 Nf5 Rh7 Nh6 Rc7 Bh5 Rc5 Be8 Rc4
3r1nn1/q2R1pp1/rNBN3k/5n1N/r7/2PR1qN1/1qbK1b1Q/1R3Nn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 h4 a5 e4 d5 b4 a4 h5 a3 h6 a2 b6 g2 b7 d3 b5 g3 b6 d4 c3 Nd7 b8N Bd6 b7 Kf8 e5 Bc5 h7 Ra4 e6 Qb6 Qd2 Qb2 Ne2 g1Q Rh3 g2 Ng3 Ra6 Qc2 d2+ Ke2 d1N Kd2 Bb6 Bb5 d3 Bc6 Ne3 e7+ Ke8 Bf3 Nf8 Nd7 Nf5 b8N Bf2 Nb6 Bb7 N8d7 Be4 Na3 Ra4 Rb1 a1R Nac4 Ra6 Ne3 R1a2 Nef1 R2a4 Kd1 d2 Ke2 Qa2 Qb2 Bc2 Bc6 Qa3 Qb4 Qb2 Qf4 Bb3 Kd3 d1Q+ Qd2 Qg4 Qe2 Bc2+ Kd2 Qf3 Qe5 Qh2 Qf4 g1N Qd6 Nf6 Qc7 Rg8 h8R Qhg2 R8h5 Rh8 R5h4 Ng8 Rd4 Qh1 Rd3 Qh2 Rh6 Qh4 Rhd6 Qd4 Nd5 Qa7 Nf4 Rh6 R6d4 Rd6 Nfh5 Rd5 Qf4 Rd6 Qh4 Rd5 Qh2 Rd6 Nb6+ Rd7 Bd5 Rd8 Nc8 Kd7 Bc6+ Ke6 e8N Ke5 Ned6 Ke6 Nf4+ Kf6 Nfh5+ Kg6 Nb6 Kg5 Nde4+ Kg6 Rd7 Kh6 Nd6
Rn3NB1/q2PkN1b/3N4/b2pqn1Q/n2N3N/r1Rqr1RK/p2b4/4q3 b - - 0 1 legal: proof: f4 b5 h4 d5 a4 g5 axb5 gxh4 Rh2 e5 Rh1 exf4 c4 dxc4 d4 Na6 d5 Qd7 d6 Nb8 Bd2 Qe7 Bb4 Qd8 Ba3 Kd7 Bb4 Ke6 d7 Kf6 Bd6 cxd6 Kd2 Ke6 Ke1 Ke7 Kf2 f5 b4 h5 e4 a5 g4 h3 g5 d5 e5 f3 Kg3 c3 b6 f2 e6 c2 b7 c1B g6 h2 g7 f4+ Kh4 f3 b5 a4 b6 a3 Qd4 a2 Kg3 h4+ Kh3 Nh6 Qd1 Qc7 Ne2 Nf5 Nf4 Bd2 Rg1 h1N Bd3 Qe5 Rg3 Ra3 g8R Ba5 Nd2 Bh6 Rc1 Rh7 Rc3 f1Q+ Kg4 f2 Nf3 h3 Nh4 h2 Nfg6+ Kd6 e7 Qg1 Qe2 f1Q Nf8 Bd2 e8N+ Ke7 Nd6 Rh6 Bb1 Re6 Bd3 Qd1 Kh3 Qge1 Qh5 Nf2+ Kg2 Ne4 Kh3 Nc5 Be4 Nc6 b8N Ba6 b7 Na4 Rh8 Bd3 Rhg8 Nfd4 Bh7 Nf5 Rh8 Qb3 Bg8 h1Q+ Kg4 Qhg1 Kh3 Ncd4 Nc6+ Kf6 Na7 Ke7 b8N Nc6 Nab5 Qa7 Nf7 Qbb1 Nbd6 Qb5 Na6 Nb8 Nb4 Be4 Nc2 Qd3 Ne3 Ng7 Nc2 Bh7 Nd4 Nf5 Nh6 Qg7 Nhf7 Re3 Qd1 Qf6 Qh5 Qe5 Nfe6 Bg6 Bh7 Nc6 Ra8 Nb8 Bg8 Bh7 Nf8
R1n5/2K2nRR/1Nnn2R1/N7/n1N2b1r/2PkQ1n1/p1pn3B/2b1qbR1 b - - 0 1 legal: proof: f4 e5 b4 exf4 a4 c5 g4 cxb4 g5 b5 g6 b3 Ra2 a6 Bh3 b4 Ra1 hxg6 Bg2 g5 Bf1 g4 c3 d5 Ba3 a5 Bg2 d4 Bc1 d3 Bd5 b2 Bb3 Ra7 Bc2 dxc2 Nh3 Rb7 Ng1 Rb5 axb5 Bd7 Na3 Be6 Nb1 Bc8 Kf2 Ke7 d4 Kf6 e4 g5 h4 f3 Kg3 a4 b6 f2 e5+ Kf5 h5 Ke4 h6 f1N+ Kg2 f5 d5 a3 b7 g3 d6 b3 h7 f4 d7 g4 e6 a2 e7 Nc6 b8N Nd2 e8R+ Nge7 Qe1+ Kd3 Rh6 f3+ Kh1 g2+ Kh2 g3+ Kh3 f2 Kg4 f1N Kf4 Nc4 Nh3 g1B Rf6 g2 Ng5 Ng3 Rg6 Nd6 Ne6 Bh6+ Rg5 Bh2 Nd4 g1N Na3 b1N Nc4 b2 Nb3 Nd2 Nba5 b1N Rg8 N2e4 Rg7 Qe8 d8R Ba6 Nd7 Nf3 Ndb6 Nbd2 Ra8 Nc5 Qg1 Nfe5 Qf2 Rg8 h8R Nef7 Rhh7 Nec8 Ba3 Qe6 Rg1 Qe1 Rg6 Na4 Bc5 Ne8 Bd6 Rh8 Rgg7 Nge4+ Kf5 Bf4 Ke6 Ng3+ Kd7 Bb5 Bb8 Ned6 R5g6 Bhg5 Rh2 Rh4 Kc7 Rg4 Rhh7 Rh4 Na3 Ke4 Qc5 Bf1 N3c4 Kd3 Qe5 Nb3 Qe8 Bc1 Qe5 Nd2 Qc5 Bf4 Qf2 Ke4 Qe3+ Kf5 Rgh6 Ne8+ Kd7 Bg5 Rh1 Ne2 Qg1 Ke4 Bh2 Kd3 Rhg6 Ned6 Kc7 Ng3 Qc5 Be3 Rg1 Bf4 Qe3+
RR4kq/1N2rnr1/2rNqN2/2rQ1q2/3B1Rp1/Rp2b3/1P2Rr2/q2nK3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 e5 d5 exf4 d6 b4 Bd2 cxd6 Be3 d5 Bc1 d4 c3 a5 Qc2 Ba6 Qd2 Bb5 axb5 a4 Bh3 a3 Qd1 a2 Nd2 Rh5 Rb1 Rh8 Bg2 a1Q Bf3 Qa2 Ra1 Qb1 Bb7 Ra5 Ba8 Rxa8 e4 g3 h4 f5 c4 Kf7 c5 d5 c6 g5 c7 g2 c8R d3 h5 d4 h6 b3 e5 f3 h7 f4 b6 Ra7 b7 Nh6 Rh3 Bc5 Ra4 Nc6 b8N Ne7 Kf2 Nd5 Ra5 Nc3 Nf1 d2 Rb5 d3+ Ne3 Qa1 Ne2 g1R Ng3 g4 Rh2 Rg8 h8R Rg7 Ra5 Ra6 Nc6 Re1 Ra8 Qb8 Qe2 d1R Ne4 d2 Ra3 Qc8 Na5 Rc6 Rd8 Qb8 Rd3 Qh8 Rd4 Ba7 Nf5 Bc5 Ra6 Kg8 Qb5 Nf7 Nfd6 Re3 Rda4 Rg1 Qd3 d1Q Rb6 Ree1+ Be3 Rg3 Qb5 Qd5 Rc4 Rc1 Rb4 Nd1+ Ke1 Rh3 Bg1 Rc2 Rc4 Rh6 Re2 Bd4 Qc5 Re6 Rb8+ Re8 Rcb4 Rc3 Nab7 f2+ Kd2 f1Q Nf6+ Kf8 Rba4 f3 Raa8 f2 e6 Qe5 Qd5 R3c5 Re4 Qg2 Ke2 Qf5 Rf4 f1R+ Bf2 Qgh1 Bg1 Rf3 Ke1 Q1h6 Bf2 Rg6 Be3 Rf2 e7+ Kg7 Nh5+ Kg8 Ng7 Rf8 e8R Rg5 Ree4 Qhe6 Re5 Rd8 Nge8 Rd7 Ree4 Re7 Re5 Rh2 Bf2 Rg7 Re2 Rg2 Bh4 Rh2 Bf6 Be3 Bd4 Rf2 Nf6#
K5bn/R4N1B/NRR3Q1/8/pqnb4/1pRqPkrq/1Nb1bR2/6nn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 f5 c5 b5 e6 Bb2 exf5 Ba3 f4 c4 a5 d4 d6 b6 Nd7 d5 Nb8 Bb4 cxb4 c5 Ra7 Na3 Rc7 Nb1 Rc6 dxc6 Bg4 Qb3 Bf5 Qd1 Bc8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 f5+ Kd4 h3 c7 h2 g5 b3 e3 f3 g6 f4 b7 Kf5 Kd5 Kg4 c6 a3 g7 h4 Qc1 h3 Qe1 a2 Bb5 a4 Qc3 f2 Qc5 f1N Nc3 f3 Qa7 f2 Qa5 Nd2 Ba6 f1B Nge2 Kf3 Nf4 Ne7+ Kd4 d5 Kc5 d4 Kb6 d3 Ka7 Be2 g8R Be6 c8N Nd7 b8R Nc4 c7 d2 Qb6 d1B Rc1 a1Q Nfd5 Nde5 Ka8 Qa3 Rg2 N7g6 Nb4 Qd3 Nd6 Bg8 c8R Bg7 Rc6 Bc2 Nd1 Bf6 Rhg1 h1Q Nf7 h2 Nb2 Rh3 Bc8 Bh8 Bf5 Rg3 Na6 Qb4 Rb7 Bg7 Ra7 Nh8 Bh7 Bf6 Rgd1 Qf1 Rd2 h1N Rh2 Qh3 Rf2+ Kg4 Rdd1 Nf3 Rg1 Bd4 Rgg2 Bcd1 Rc3 Ng1 Rff6 Bc2 Rgf2 Qf5 Qd8 Qg6 Qe8 Qd3 Rb6 Bc5 Rfc6 Bd4 Rh2 Kf3 Qe6 Bed1 Qg6 Be2 Rf2+
4nqb1/6q1/1r6/rRp3NP/1k1qn1r1/2nB1R2/1BRrp1RK/1Q1RnB2 b - - 0 1 illegal: No possible last move
R6Q/4k2r/K4pNR/2qnr1b1/1N5N/1R1pn1rP/1pRr1Rb1/2q1B2r b - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 a5 f5 axb4 f6 Ra6 Nf3 Ra3 Ng1 Ra8 g4 exf6 g5 Ra7 g6 Ra8 gxf7+ Ke7 Bh3 h5 Bg4 hxg4 Kd2 b5 Kd3 g5 a4 d5 c4 b3 e4 b4 e5 b2 e6 g3 h3 g2 a5 g4 c5 g3 c6 b3 c7 Nc6 a6 Nb4+ Kd2 d3 Kc3 d2 a7 d4+ Kc4 d3 Kb5 Rh7 Na3 b1R Rh2 b2 Nc2 Qd6 Nf3 g1Q Ra3 g2 Rb3 Bh6 f8N Nd5 Nh4 Bb7 c8R Bg5 Qh5 d1R Nb4 Rd2 Rc2 Re8 a8R Ne3 Ka5 Bc6 Ka6 Qc5 Qh6 Qf1 Qh5 g1R Rf2 Rg3 Nfg6+ Kd6 Qh6 Ne7 Qh5 N7d5 e7 Nc3 Qh6 Bg2 Qg7 Ncd5 Qh8 Re2 Bd2 Qc1 Be1 Rd2 Qg7 Rb8 e8R Rb5 Qh8 Kd7 Nf4 Kd6 Rg8 Ke7 Rg6 Rb6+ Ka7 Re6+ Kb7 Re5 Rh6 Ra1 Nfg6+ Kd7 Rf4 Qd1 Bf2 Rb1 Ka6 Ke6 Rcc4 Qc2 Rf3 Rh1 Be1 Qc1 Rc2 Kd7 Rf2 Kd6 Nf8 Ke7 Nfg6+
Q1n3RR/1K1R1b2/2rR1k2/P2R2pq/1b2r1Bp/2r2n1B/p1B3r1/nN5q b - - 0 1 illegal: No proof kernel
1r1Rr1qq/QR1qP3/bB4p1/Rp4n1/5q2/1Bb5/1pNbKBR1/1krR4 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Qd3 f5 Nc4 f4 Ne5 Nc6 Qd2 Nce7 Qd1 Nf5 gxf5 Nf6 Ng4 hxg4 Qd2 Ng8 Qd3 Ra4 Qd1 Ra8 c4 Kf7 h4 Kf6 a4 Ke5 e4 b5 c5 d5 h5 g6 h6 f2+ Kd2 g3 a5 f3 h7 g2 c6 b3 c7 b2 f6 d3 a6 Kd4 a7 Nh6 f7 Rb8 a8R Bg7 f8B Nf7 e5 Ng5 e6 Ba6 Be7 Re8 Be2 f1R c8R f2 h8R Ke4 Ra4+ d4 Nf3 g1B Ra5 Re1 R8h3 f1Q Rg3 Qh3 Bd6 Qh8 e7 Rf1 Qe1 Be3+ Kd1 d2 Rg2 Qc7 Bc5 Qf4 Bc4 Be5 Bf7 Kd3 Ra7 Kc3 Ke2 Kc2 Qd1+ Kb1 Qa4 Bf6 Rd8 Bg7 Kd3 d1Q+ Bd2 Bf6 Ne1 Qb3+ Ke2 Be5 Bc3 Bd2 Nc2 Rc1 Rd1 Bf6 Bg8 Qf7 B3b4 Qfg7 Bb3 Qgg8 Bb6 Bg7 Rf2 Be5 B4c5 d3+ Kf1 Bec3 Rb7 Nf3 Re2 Ng5+ Bf2 Be3 Rde1 d2 Qd4 d1Q Rd2 Qdg4 Red1 Qd7 Ke2 Nh7 Rd3 Bed2 Rg3 Ng5 Rg2 Qgd5 Bc7 Qdf7 Qa7 Qfg8 Bcb6
2B5/1n2k1n1/2B1ppq1/4r2p/nBKB2N1/q6P/1r1Q1N1B/Nnn2nbR b - - 0 1 legal: proof: e4 a5 c4 g5 f4 gxf4 a4 d5 d4 dxc4 b4 axb4 d5 c3 Ra3 Be6 d6 c2 Rc3 Bd5 exd5 bxc3 Ke2 c5 Kd3 h5 g4 b5 h3 f6 g5 e6 g6 c4+ Kd4 f3 d7+ Ke7 a5 b4 g7 b3 a6 b2 a7 f2 Bf4 c1N Qd2 c2 Bg2 f1N Nf3 c3 Ne1 Na6 Nd3 Ne2+ Kc4 c1Q Nf2 c2 Bh2 Nc3 Na3 b1N Bf3 Rb8 a8B Qe8 Bb7 Nh6 Bc8 Nc5 Bg2 Rg8 d8B+ Kf7 d6 Rb2 d7 Nf5 Bgb7 N3a4 Ba5 Ke7 Bc6 Qg6 Bb6 Nb7 d8B+ Kf7 Be3 Bc5 Ba5 Ke7 Bd4 Rd8 Bac3 Rd5 Bb4 Re5 g8N+ Kf7 Kd3 Ng7+ Kc4 Kf8 Nh6 Ke7 Qf4 Qe3 Nhg4 c1N Nc2 Qa3 Qd2 Qa1 Bdc3 Ng3 Nd3 Qa3 Na1 Nf1 Nf4 Kf7 Nd3 Be3 Bd4 Bg1 Bbc3 Kf8 Ndf2 Ke7 Bb4+
r1BQb1bR/B2b1b1b/B1pK1b2/Bpr5/5P1q/n2pRq1k/B7/R5N1 b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 e5 b4 exd4 c5 f5 e5 Nc6 Nc3 Nce7 Ne4 fxe4 Rh2 Nd5 Rh3 b5 Rh1 Nb6 cxb6 axb4 Kd2 Ke7 g4 Ke6 a4 h5 f4 d5 b7 d3 Ke3 d2 Kd4 h3 b8B b3 g5 Kf5 g6 b2 a5 b1B g7 c6 a6 e3 a7 e2 e6 Kg4 Ke5 h2 e7 h4 e8R h3 Re7 d4 Rd7 Nh6 g8B Bh7 Bc7 d3 Nf3 e1Q+ Be2 Qdh4 Rd4 Bd7 Bb3 Bg7+ Kd6 Nf7+ Kc5 Bf6 Ba5 Ne5 Re4 Qeg3 Ng1+ Qf3 Re3 Nc4 Ba2 Na3 Qa4 d1B Kd6 Rhe8 Qc4 Re5 Qd4 Rc5 Bf1 Bb3 Ne2 Bf7 Qd5 Bh5 Bb2 Bhe8 Bd4 Rb8 a8B Bg8 Bb7 Ra8 Bg2 Bh7 Rhb1 h1B Ba6 h2 Rg1 Bg8 Bf1+ Bg2 Rh1 Bh7 Qg8+ Kh3 Qf8 Rc4 Ba7 Rc5 Rg1 h1B Qe7 Kh2 Qd8 Bgh3 Rg3 Bhe6 Rg8 B6f7 Bh3 Bg2 Bg4 Bh3 Bge6 B3f5 Rf8 Kh3 Rh8 Bg4 Bf5 Bfg8 Bfe6 Bef7 Bf5 Bde8 Bfc8 Bgd7 Ng1+
n2B4/k1qrnb2/Rp2p3/RqBrq3/BR1Rq3/r3QR2/P4Kp1/3rN3 b - - 0 1 illegal: No possible last move
2Br2nN/QK1pR2p/3p1br1/1p3B2/1r2r2N/1Bn1B2B/P2q1k2/2b1b1N1 b - - 0 1 illegal: No possible last move, all moves rejected
rq6/1qq1Pn2/2kN2R1/R1BbB1rB/1p2p3/3bq1pn/Q1B1Bp2/1R5K b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 g5 dxe4 g6 c5 Be2 c4 Bf1 hxg6 Bh3 g5 Bf1 g4 f4 e5 Nc3 e3 Na4 e4 Nc5 Bd6 Nb3 Be5 fxe5 cxb3 c4 Kd7 a4 f5 h4 g5 d4 b5 e6+ Kc7 h5 g3 e7 g4 c5 g2 d5 f4 c6 g3 a5 f3 a6 b2 a7 b1B d6+ Kb6 h6 e2 h7 b3 c7 b2 d7 b4 Qa4 Ba6 c8B Bc4 Qa2 Nf6 Be3+ Kb5 Bc5 Rg8 h8B Kc6 Nh3 g1Q Ng5 Nh5 Be5 Bbd3 Nf7 Bd5 Nd6 Rg5 Ba6 Qg8 d8R Nf4 Rb1 Qf8 Rh6 Nh3 Rg6 Nd7 Bc4 Qd4 Bb3 Qg8 Bc2 f2+ Kd2 Qc4 Ke3 e1Q+ Be2 Qe8 Rb8 Qc8 Rb5 Qb7 Ra5 Qec3 Bh5 Qcb5 Be2 Nf8 Bh5 Ne6 Be2 Nd8 Bh5 Rc8 a8B Nf7 Be2 Qd4+ Kd2 Qe3+ Kd1 Kc7 Bh5 Qb8 Bc6 Q5b7 Bd7 Rg8 Bdg4 Kc6 Bf3 Q8c7 Bfg4 Ra8 Be2 Qcb8 Bf1 Nd8 Rc1 b1Q Ba4+ Qb5 Bb6+ B5c4 Ba7 Qb2 Rb1 Qc3 Bc2 Kd5 Bad4 Bb3 Bb6 Qcc7 Bc5 Bdc4 Bd3 Kc6 Bf1 Q5b7 Bd3 Qf4 Ke2 Qe3+ Kf1 Nf7 Bde2 Bd3 Kg2 Bd5 Kh1
b1NQ2K1/RP1p1r1p/nqqR4/Nn2bN2/2N4B/1pR2b2/1Np1p3/3k3b b - - 0 1 legal: proof: d4 e5 h4 exd4 c4 a5 b4 axb4 h5 b3 h6 gxh6 Rh3 h5 Rh1 h4 e4 f5 e5 b5 Bd3 b4 Bc2 Ra5 Be4 Rb5 cxb5 fxe4 Ke2 Kf7 g4 Kg6 a4 c5 f4 d3+ Ke3 d2 a5 c4 Kd4 c3 a6 e3 a7 b2 a8N e2 e6 b3 Ke5 h3 e7 h2 e8N Qc7+ Nd6 Nf6 b6 Bb7 g5 Kh5 g6 Kg4 f5 Ne8 f6 Bg7 Ra7 Bf3 Na3 b1Q Qc2 d1B Nh3 Rg8 Bg5 Qc4 Nb7 Rh8 Bh4 Rg8 Na5 Qa6 Nf4 Bh6 f7 Nd6 Kf6 Qc4 f8R Rg7 Rc8 Nb5 Rcc7 Re7 g7 Na6 g8N Bf8 Qb2 Bc2 Rd1 h1B Rd6 Bce4 Nd3 c2 Nh6+ Kh3 Qe5 Kg2 Qg5+ Kf1 Nf5 Bh6 Qg8 Bf4 Qd8 Qe1 Rc5 Qf2 Rc8 Qd5 Rc3 Bg3 N3c4 Rf7+ Kg5 Be5 Kh6 Rf6+ Kg7 Rf7+ Kg8 Qfd4 Nf2 Ke1 Nd3+ Kd1 Nc7 Qb7 Nd5 Qc8 Nde7 Ba8 b7 Qc6 Nc8 Qdb6 Ndb2+
3kb3/p4B2/p3r2p/bq2N3/pN3r2/2p1b1NN/RpP4K/nQN1n1RR b - - 0 1 illegal: Other
1Q4N1/2brNrn1/3B1n2/BB1R2b1/5pp1/3bBP1k/Nn3bB1/2Kb1qrr b - - 0 1 illegal: No possible last move
K1b1R1NB/7B/1q2Qbrn/2R3Bp/R1Bn1b2/2pr4/b1PB1n1n/2qkr3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 e5 g5 e6 gxh4 Nc3 f4 Nd5 dxe6 Ba3 e5 Bc1 e4 Ne3 fxe3 Ke2 Kf7 f4 Kf6 g4 c5 d4 b5 a4 h5 d5 e5 d6 b3 g5+ Kf5 a5 Kg4 d7 h3 f5 b4 a6 h2 a7 c4 f6 b2 f7 b1B g6 b3 g7 b2 Ra6 c3 Ra1 Be7 f8B Nc6 Qd5 Ba2 Qb5 b1Q Qb6 Nh6 g8B Bf6 Bd2 Qc1 Qa6 Qb6 Bh7 Rg8 d8B Rg6 Nf3 Kf4 Rg1 h1N Bfe7 Nf2 Ng5 Rb8 a8R Rb7 Qb5 Rd7 Qa6 Rd5 Nf7 Rd3 Bg2 Kg3 Qc4 Kg4 Qe6+ Kg3 Ra5 Kf4 Re1 Nd4+ Kf1 Kg3 Rc5 e2+ Kg1 e3 Bd5 e4 Bc4 Kf3+ Kh2 Bh4 Bf6 Bg5 Bh8 Bf6 Rf1 e1N Rh1 Bb3 Ra4 Ke2 Rg1 Kd1 Rg2 Nhg4+ Kg3 e2+ Kf4 e3 Nh6 Nef3 Ng8 Nh6 Rgg5 e1B Rge5 e2 Re4 Bg7 Bg5 Nh2 Re3 Ba2 Ree5 Nh1 Ke4 Bg3 Kd5 e1R Re2 Nf2 Re5 Qb4 Kd6 Bf4 Kc7 Qa5+ Kb8 Qb6+ Ka8 Bf6 Qd5 Ree3 Re8 Re1 Qe6
1KB1N3/8/1pRnbRq1/1Q1q1b2/1P1B2qB/1n4r1/prnk2nR/2qR1Rb1 b - - 0 1 illegal: No proof kernel
1rbNN3/2R1N1rr/1p5Q/1r4rq/b3kR2/pnbn1r2/NP1b2R1/3K2BN b - - 0 1 illegal: No proof kernel
2qq2N1/QbnbnNB1/4Npn1/5rR1/2Bbnn2/2B1pP1k/2r1p3/BK1B4 b - - 0 1 legal: proof: e4 a5 b4 axb4 a4 h5 g4 hxg4 e5 c5 e6 c4 Ra2 dxe6 Rb2 e5 Rb3 cxb3 Ba3 e4 Bb2 Qc7 Bc1 Qd8 c4 Kd7 h4 Ke6 d4 Kf5 Kd2 e5 c5 b5 h5 g5 h6 f6 d5 b2 Kc2 e3 a5 b3+ Kd3 b4 c6 e4+ Ke2 g3 h7 Kg4 d6 g2 d7 Bb7 c7 Na6 c8N Bc5 Qd4 Nc7 Kd1 e2+ Kd2 Ne7 Nf3 g1N a6 Nh3 a7 Nf4 Nd6 Nfg6 Ne8 Rc8 Nc3 b1B a8B b2 Nd6 b3 Nd5 Bd3 Qe3 b1Q Nd4 b2 Rh5 Bb5 Ne6 Bd4 Nf7 Qa1 Kc2 b1N Qa3 Nc3 Qa7 Qa6 Bb2 Rg8 f3+ Kg3 h8B g4 Rg5 e3 Ba1 Re8 Bh3 Ne4 Kb1 Kh4 Bg7 g3 Bf5 g2 Nb6 g1N Nd5 Nc5 Bd3 Ne4 Bc2 Nh3 Ba4 Nhf4 Bd1 Ng8 Ne7 Kh3 Nf5 N8e7 N5h6 Rh8 Ng8 Rh5 Qc5 Qe8 d8B Bd7 Qa7 Qa5 Rg4 Rf5 Rg5 Nb5 Bb6 Nc7 Bc5 Qd8 Bb4 Qa6 Bd2 Ncd5 Bb4 Rc2 Bd2 Nc7 Bdc3 Bd5 Bc6 Qac8 Bb5 Bb7 Bc4
B1qr2n1/5R2/1R3bn1/4rb1r/2BN3q/2BpBp1p/kQ1Pq3/q1RnB1K1 b - - 0 1 illegal: No possible last move
1rN1rN2/k1Qr1bBK/1b4pn/b1N1RB2/B4rP1/pq1b1p1r/8/1B2n2B b - - 0 1 illegal: No possible last move
2B1NN1N/p3Npb1/3r1n1N/1r2r2p/P1Q3b1/4n2k/K1b1b1qR/2R1r1Rr b - - 0 1 illegal: No possible last move
rbn1NQr1/1K2p2b/1pBq4/1P2Nb1R/R1r2p2/4n1nN/n3R3/1bR1Rk2 b - - 0 1 illegal: No possible last move
b2r1QRN/2pB2qb/NnR1bbp1/1k3n2/4p3/K1P2n1R/pN1r1r2/1RR5 b - - 0 1 legal: proof: e4 b5 g4 e5 d4 exd4 a4 bxa4 e5 h5 e6 hxg4 Bf4 f6 Be5 fxe5 Kd2 d5 Kc1 a5 h4 g3 b4 a3 f4 d3 b5 a2 Kb2 g2 h5 a4 h6 d4 f5 d2 c3 d3 e7 Kd7 e8R a3+ Kb3 Ne7 f6 Nf5 h7 Be7 b6 Kc6 b7 Qd4 f7 Rf8 h8R Kb5 R8h2 Bf6 Ne2 g1N Rh3 Nd7 b8N Nb6 Nf4 Nf3 Qc2 d1B Nd2 Be6+ Nc4 d2 Rb1 a1R Na6 a2 Ng6 Rd8 Nh8 Be2 Bg2 Bd3 Rhc1 d1B Kb2 Be4 Qf2 Ba8 Ka3+ Bb3 Nb2 g6 Re7 e4 Rd7 Qe5 Rd6 Bbc4 Rc6 Rd2 Nc5 Rfd8 f8R Bg8 Qf1 Bh7 Na6 Qd4 Qf2 Be6 Rg8 Qd7 Qd4 Qg7 Qd6 N3h4 Bf3 Rf2 Bg4 Nf3 Qf8 Rdd2 Rc2 Rd8 Rf1 Re1 Rc1 Ree2 Rb1 Rc2 Rfc1 Rcd2 Ra1 Bc4 Rc2 Nd6 Bd7 Be6 Rb1 Nf5 Rcc1
1Q1K2R1/rp2pBBb/q1pB1RR1/R3P2n/p4b2/1b2qr1k/2R4n/b2b1N2 b - - 0 1 illegal: No proof kernel
qb1B2RR/2N4p/nRp4P/1p1b1r1r/1pBK2R1/3Q1Bb1/3b1nk1/2r3qR b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Nc3 d5 Nce2 dxc4 Nf4 gxf4 Kf2 Kd7 g4 Kc6 h4 Kd5 a4 e5 d4 f3 Ke3 f2 h5 c3 g5 c2 f6 Nh6 f7 Ra5 g6 Bd6 f8R Na6 g7 Be6 g8R Qa8 Bd3 f1Q Ne2 Qg1+ Rf2 Rc5 a5 b5 Bb2 c1R Nc3+ Kc6 Rg4 Rf8 Bc4 Bd5 Qd3 Rf5 Rg8 Qd1 Rfg2 Qg1+ Kd2 Ng4 h6 Nf2 R2g4 e3+ Ke2 Nb8 a6 e4 a7 Na6 Ra5 Kd7 Ra2 Ke6 Ba1 Rh5 Rd2 Kf5 Rd1 Be6 d5 Bg3 d6 Bd5 d7 Ke5 R4g6 Kf4 Rb6 Bh2 Rh8 Kg3 d8R Kg2 Rdg8+ Bg3 Rf1 Rf5 Nd1 Rh5 Bf6 Rf5 Bd8 Rh5 Ke1 e2 Kd2 e1B+ Ke3 Bd2+ Kd4 e3 Nc3 e2 Rh4 e1B Rhg4 Qh2 Rh1 Qg1 Ne4 Bf4 Nd6 Bed2 Ne8 Bb7 Rbg6 Rcf5 Rd6 Bd5 Rb6 Qc8 a8B Bd6 Bc6 Qa8 Bd7 c6 Bc8 Bb8 Nc7 Be4 B8e6 Bf3 Bed5 Be4 Bb3 Bf3 Bdc4 Be4 Bd1 Bd5 Bf3+
nKb4R/N1p5/Rp1rnk1q/Nq1b1p1p/r3n2Q/R3bR1B/2Pb1R2/7N b - - 0 1 legal: proof: f4 a5 h4 e5 b4 axb4 e4 exf4 e5 g5 e6 gxh4 Bb2 d6 Be5 dxe5 Kf2 Ke7 Kf3 h5 Ke4 h3 a4 f3 d4 h2 g4 f6 d5 b3 a5 f2 d6+ Ke8 Kd5 b2 e7 Kf7 e8R e4 a6 f5 a7 e3 g5 e2 g6+ Kg7 d7 e1B Bh3 f1Q Na3 b1N Nc4 Qg5 d8N Bc5 Re3 Rh6 Raa3 Kf6 g7 Nd2 Ne2 Nf3 Na5 Nd4 Ng3 Nd7 Qg4 Bd2 Rf3 Ne6 Qh4 Qb5 Rhf1 h1B Rf2 Bg2 Ndc6 Rg6 Qb4 Qh6 Nh1 Bce3+ Qc5 Rb8 a8R Rg4 Ra7 Ra4 Ra6 Ra8 Rb6 Ra6 Na7 Qb2 Qb4 Qb1 Rb5 Rc6 Rb6 Rd6+ Kc4 Qb2 Ra6 Nb6+ Kb5 Qb1 N7c6 Na8 Na7 Qg1 Qf4 b6 Qe4 Qb1+ Qb4 Ne7 g8R Nd5 Rh8 Nc3+ Kc4 Ne4 Kb5 Rd4 Kc6 Bd7+ Kb7 Rd6 Kb8 Bc8 Qc4 Qb5 Rg3 Bf1 Qb4 Bc4 Rgf3 Bd5 Qc4 N4g5 Qf4 Ne4 Qh4+
2N1bR2/rQk3qN/r7/2nP4/r1BNn3/Bnq3q1/2q3N1/r1Nr1QK1 b - - 0 1 legal: proof: b4 a5 bxa5 e5 f4 exf4 h4 b5 a4 d5 c4 dxc4 a6 g5 a5 gxh4 a7 Bc5 Ra4 Bb6 axb6 b4 b7 Qe7 Ra5 Qf6 Rd5 Qg5 Rd8+ Qxd8 Kf2 Kd7 d4 c5 e4 h5 g4 f5 e5 b3 d5 c3 e6+ Kc7 e7 h3 e8Q c4 g5 b2 g6 c2 g7 h4 Qf8 c3 Qb4 f3 Bg5 c1N Qf4+ Qd6 Qb3 c2 Qfe3 h2 Qd2 h3 Qe2 f4 Qe7+ Bd7 Qf8 Na6 b8N Nc5 Bh6 Be8 Ba6 Nf6 g8N Rh7 Be2 Nfe4+ Kf1 f2 Qb4 N1b3 Nf3 c1Q+ Ne1 Qc3 Nd2 b1Q Nc6 Qbc2 Nd4 Qd7 Ng2 Qg7 Rg1 h1R Nf6 h2 Bc4 Qgg3 Bg5 Rh6 Nh7 Ra6 Be7 Qg7 Ke2 f1R Qf7 Rd1 Rf1 Rg1 Qf5 h1Q Rf3 Nf6 Kf2 Qh3 Qd3 Rge1 Qf1 Nfe4+ Kg1 Qhg3 Rf2 f3 Bd6+ Kd8 Qb7 Rda1 Bf8 Red1 Bd6 R1a4 Bf8 Rc8 a8N Rc7 Nb6 Rf7 Nc8 Re7 Qb8 Rea7 Qb4 Kc7 Qb5 Na5 N2b3 Rda1 Nc1 Nab3 Kh1 Nd7 Ba3 Ndc5 Rd2 f2 Rd3 Q3g5 Rf3 Q5g6 Rf8 Qgg3 Qg1 f1R Qc6+ Kd8 Qb7 Re1 Qf1 Rd1 Qb4 Kd7 Kg1 Kc7 Qb7+
2r1Q2n/qP2p2K/b3N1R1/2Bn3R/qrq1r2n/5R1r/RR4Bk/r5Q1 b - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 a4 a5 e4 g5 e5 gxh4 bxa5 d3 e6 b4 a6 Bg7 a5 Bd4 a7 Bb6 axb6 fxe6 b7 e5 Nc3 e4 Nd5 Kf8 Nf6 Kf7 Ne8 Kxe8 Kd2 Kf7 Ke3 Ke6 Kf4 h5 Kg5 Ke5 Kg6 d5 g4 h3 c4 d2 c5 Kf4 c6 h2 g5 b3 c7 e3 f3 Kg3 f4 e2 f5 e1N f6 b2 f7 b1R f8R d4 Qb3+ d3 Qb4 d1Q Qc3 h4 Qc6 d2 Qa6 h3 Kg7 Qa4 g6 d1Q Bb5 Nc6 Bb2 Q8d5 Rf1 Bd7 c8Q Qdc4 Nf3 Nf6 Qf8 Nd8 Nd4 Rh4 Qg8 Nd5 Ba3 Ng2 Ne6 Rb4 Rb1 Re4 Bc6 Rc8 a8R Qdd4+ Kh7 Nf7 g7 Nh4 Qb6 Nh8 Rb2 Qdc5 Qbd8 Qca7 Qb6 Be8 Qc5 Bh5 Qe8 Be2 Rf3+ Kg2 Rc1 h1R g8R+ Kh2 Rg6 Rd1 Ra1 Rd3 Rag1 Rd1 R1g5 Ra1 Qb6 Kh1 Rh5 h2 Ng5 Kg2 Qc5 h1R Ne6+ Kh2 Qd4 Rb6 Bc5 Rb4 Qg7 Rhg1 Qd4 Rg3 Qg7 Rh3 Qgg8 Qb8 Ra6 Qa7 Ra5 Qab5 Raa2 Qba4 Bb5 Qc3 Rgh6 Red4 Qg5 Re4 Rg6 Qcc2 Bc4 Bd1 Bf1 Be2 Qc1 Ba6 Bg2 Qc4 Qg1+
Q2q2bq/6RR/n3bp1K/q3bqPn/4Nn2/1B5k/2R4B/Rn1Qq1R1 b - - 0 1 legal: proof: g4 f5 f4 a5 h4 e5 a4 exf4 d4 b5 b4 h5 g5 c5 Nd2 cxd4 Ne4 f3 Nf6+ gxf6 Ra3 f4 Ra1 axb4 Be3 b3 Bc1 b4 g6 Ra5 Bg2 Rb5 axb5 Rh7 Bf1 Re7 Ra4 Re5 Ra1 Rg5 hxg5 Bc5 Kd2 Be7 Ke1 Bf8 Kd2 Ke7 c4 Ke6 e4 d5 e5 Kf5 e6 Kg4 b6 b2 b7 b1B c5 b3 c6 b2 g7 d3 e7 d4 e8Q h4 c7 h3 Qda4 f2 Qac6 f3 Qb6 h2 Qa5 Be6 c8R Bba2 Bg2 f1N+ Ke1 b1N Kf2 d2 Qd7 d1Q Qa7 d3 Rc7 d2 Nh3 Qa4 Rg1 d1Q Bf4 h1Q Qa8 Ne7 g8R Qa5 Rg7 Nd5 Rc2 Bd6 Bh2 Na6 b8R Nf4 Rb7 Ng3 Ke3 f2 Bd5 f1Q Bb3 Kh4 Nf2 Be5 Ne4 Kh3 Qd3 Qh5 Qd1 Qhh8 Rh7+ Ngh5 Rbg7 Qfb5 Kf2 Qg2+ Ke3 Qgd2+ Kf3 Qe1 Nc3 Qef1+ Ke4 Bg8 Kf5 Qe1 Ne4 Nd5 Kg6 Nf4+ Kh6 Qc5 Ba4 Bae6 Bb3 Qcf2 Ba2 Qf3 Bc4 Qg4 Bd5 Qf5 Bb3
K4bR1/1N2n2p/B1rk1nQ1/q3q1Q1/pq1b1NP1/Q1Q1QB2/1b4n1/6n1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 Qd3 bxa4 Qd1 d3 b4 d5 Ra2 a5 Qe2 f5 Ra3 d4 Qd1 Ra7 Rb3 Rd7 Ra3 Rd5 exd5 Bb7 Qf3 Ba6 Qd1 Bc8 Rc3 Qb6 Rc6 Qb5 Re6 Qd7 Re4 Qd8 f4 fxe4 f5 g6 Bf4 g5 g4 gxf4 h3 Be6 g5 Bf7 Nd2 Bh5 Nb1 Bg4 hxg4 Qd6 Qc1 Qb6 Qd1 Qd8 Kd2 Kd7 c4 e5 b5 a3 d6 f3 b6 a4 f6 f2 g6 a2 c5 a1Q g7 Qa2+ Qc2 Qd5 b7 Ke6 c6 Q8a5+ Nc3 Ne7 c7 Nd7 f7 Nf6 d7 Kd6 Bg2 f1Q c8B Qb1 g8Q Qbb4 Bf3 Qe6 Rh6 e3+ Ke1 e4 Nh3 e2 Kd2 Qef5 Nf4 Qfe5 Qg6 Rg8 Rh5 Rh8 Rg5 e1B+ Kd1 d2 Ke2 e3 Kd3 d1N b8Q+ Qc7 Ba6 e2 Qb7 Qca5 Qbe4 Bf2 Qe3 e1B Qb2 Bd2 Qc2 Bc1 d8Q+ Kc5 Nb5+ Nc3 Qb2 Ne2 Nd6 Ng1 Qa3 Bb2 Qb3 Bg7 f8Q Rg8 Qa3 Bh6 Qff7 Bf8 Qfb3 Rg7 Qf5 Rf7 Rg8 Rg7 Qg5 Rg6 Qe8 Rh6 Nf7 Rg6 Nd8 Kd6 Qc3 Rh6 Kd2 d3 Qf7 Qad5 Qfg6 Qa5 Nb7+ Kd7 Kd1 d2 Kc2 d1N Kd3 Bh4 Qe2 Ne3 Qed2 Ng2 Qe3 Qbd6+ Kc4 Bf2 Qec5 Bd4 Qe3 Qe1 Kb5 Qdd5 Kb6 Qd2 Ka7 Qb4 Qb6 Qda5 Qc2 Rg6 Ka8 Rh6 Qbc5 Rg6 Q5c3 Rh6 Nc5+ Kd6 Qcg6 Rh1 Ka7 Ne2 Ka8 Rc1 Qcd3 Rc4 Qdc3 Ng1 Ncd3 Rc7 Nc5 Rc6 Nb7+
5bQ1/2Qb4/1pQ3b1/3Q1pk1/n1bb1r2/QN1P1b1n/Rr4NK/r1B1R3 b - - 0 1 legal: proof: f4 a5 b4 e5 h4 exf4 a4 g5 c4 gxh4 e3 d5 cxd5 Qd6 Bc4 axb4 a5 Qb6 Ba2 b3 a6 bxa2 Kf2 Qa7 Ke2 b6 Ke1 Qb7 axb7 Bb4 Qc2 Be7 Qd1 Bf8 Kf1 Ke7 g4 Kf6 Kg2 h5 e4 c5 d6 h3+ Kh2 c4 d7 c3 d8Q+ Ne7 e5+ Kg5 e6 h4 Ne2 f3 Qd4 c2 Qa4 f2 Qa5+ Nd5 e7 f1B e8Q Bd7 Qe6 Na6 b8Q Nc5 Na3 Na4 Nb5 Nf4 Ba3 c1B Qb7 Bb2 Rb1 a1R Qec6 Bd4 Rb2 Re8 Qb3 Re4 Ra2 f5 Qd1 Be8 Qb8 Bg6 Bc1 Rh7 Qbc7 Rd7 Nec3 Bc4 Nd5 Rg7 Re1 Rg8 Kh1 h2 Ne3 Nh3 Ng2 Rf4 d3 Rg7 Qb3 Re7 Qa3 Re2 Nc3 Rf2 Qad5 Rb2 Ne2 Rab1 Ne3 Ra1 Kg2 h1B+ Kh2 Bf3 Ng2 Bf2 Nd4 Be3 Qcc5 Bf2 Nb3 Bd4 Qde5 Bc6 Qed5 Bd7 Qdc6 Nf2 Q5e5 h3 Qed5 Nd1 Kg3 h2 Kh3 h1B Kh2 Kh6 g5+ Kh5 Qac5 Nf2 Qe7 Nh3 Qa3 Bf7 g6 Kg5 g7 Bg6 g8Q Nf2 Nh4 Bf3 Ng2 Nh3 Qg7 Rd2 Qh8 Rb2 Qhg8
1KbQ3n/N1B1p1b1/2Q2N1N/RpP1r1r1/8/1q4Nn/bp3N2/1Bb2k1n b - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 e4 axb4 g4 f5 exf5 h5 gxh5 b3 Nf3 Rxa4 Ng1 Ra8 Ra6 b2 Rd6 Ra4 Ra6 Ra1 Ra8 Rxa8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 b5 f4 d6 h4 g4 c4 g3 c5 d3 h6 d2 h7 g2 h5 Ra6 h6 Ra8 Ne2 g1B Nbc3 Bh2 Ng3 Nd7 Kc6 d5 Qf3 d1N Bd3 d4 Bb1 Nf2 Nd1 Nh3 Nf2 d3 Rf1 Qe8 Kc7 Qf7 Qc6+ Qe6 Bd2 Ne5 Ba5 d2 Bb6 Ra4 Kb8 d1B Bc7 Bg7 Re1 Bh5 Re3 Rb4 Ra3 Ng6 Ra7 Re4 Ra5 Kf7 f6 Re5 f5 Qb3 Ngh1 Bf4 Ng3 Kf8 f7 Nf6 Ra7 Be2 Ra5 Rg8 h8N Bc1 h7 Ne4 Qb7 Bgh6 Qc6 Kg7 f8N Bc4 Nf7 Nh8 Nd6 Kf6 Nd7+ Kg5 f6 Kf4 f7 Ke3 f8Q Rgg5 Qd8 Bg7 Nf6 Kf3 Qde8 Kg2 Qd8 Ng6 h8N Kg1 Nf1 Ng3 Nhf7 Nh8 Nh6 Nh1 Ng3 Qc3 Ka8 Ba2 Ka7 Qb3 Kb8 Ba6 Nc8 Bb7 Ne2+ Kf1 Na7 Bc8 Ng3+
BQ2r3/2RQn2K/r3p2p/1rn1N3/1N1rP1n1/3QQq2/b1pnQB1k/8 b - - 0 1 legal: proof: b4 a5 bxa5 f5 g4 fxg4 a4 b5 c4 d5 h3 gxh3 a6 dxc4 a5 b4 a7 e6 Ra3 Bc5 Ra4 Bb6 axb6 Qd6 b7 Qe7 Ra5 Qh4 Rd5 Qf6 Rd8+ Qxd8 d4 Kf7 Kd2 Kf6 Ke3 Kg5 Ke4+ Kh4 f4 Kg3 e3 g5 f5 c5 f6 g4 d5 h2 f7 c3 f8Q c4 d6 b3 d7 b2 Nh3 c2 Nd2 b1N Qg7 h6 Ng1 c3 Nc4 Na6 Qe2 Qf8 d8Q Nc5+ Ke5 Qf3 b8Q Nd2 Nb6 Bb7 Nd5 Ne7 Nb4 Re8 Qdd3 Bd5 Bg2 Ba2 Qb6 Rad8 a8Q Rd4 Bb2 c1R Qab8 Rb1 Ba1 Qf1 Ba8 Qf3 e4 Rb3 Q6a7 Ra3 Qd7 Ra6 Qg5 c2 Qge3 Kh4 Bb2 g3 Bc3 g2 Ba1 Qf7 Nf3+ Kg3 Rg1 h1N Bb2 Qh5+ Kf6+ Kh3 Kg7 Nf2 Bc3 Ng4 Ne5+ Kh2 Kh7 Qh3 Rf1 Qg3 Rf7 Qf3 Qf1 g1R Qfe2+ Rg2 Rg7 Nf1 Be1 Nd2 Bf2 Rg1 Nbc6 Rb1 Rf7 Rb7 Nb4 Rb5 Qdb7 Ng8 Rc7 Ne7 Qc6 Qf8 Qd6 Qf3 Qd7
bQ1Bq3/1NQb2k1/Kb4B1/2P1rb1N/b3q2n/bN3Nr1/2bnN1R1/6r1 b - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 b4 exf4 Ra3 b5 axb5 cxd4 c4 Qa5 Rb3 Qd8 Rc3 dxc3 g4 a5 e4 f5 Ke2 Kf7 Kd3 d5 g5 h5 b6 a4 g6+ Kg7 e5 a3 b7 f3 e6 c2 e7 f2 e8Q a2 b5 a1B b6 h3 Ba3 c1R Qg4 f4 Qg2 h2 Qg3 d4 Qg2 f3 Nh3 h4 Qe5+ Nf6 Qc5 Rg8 Qe5 Nc6 b8N Ra5 b7 Bd7 Qeg5 Ne7 Rg1 h1B Na6 Re5 b8N Ne4 Q2g3 Nf5 Nf4 h3 Ne2 h2 Be7 Qe8 Nc5 Nh4 Rg2 Nd2 Nb7 Re1 Bd8 Ba3 Qh5 Bc3 c5 Ba5 Qf4 Bb6 Nc6 Rc1 Nca5 Re1 Kc2 d3+ Kc3 Bf5 Nb3 Rd1 Rg5 Bd7 Bh3 f1B Bf5 Bh3 Rg2 f2 Qhg5 f1B Qgg3 Ba4 Be4 Bf5 Kd4 Ndf3+ Kc4 d2 Bd3 Re1 Be4 d1B N1d2 Bc2 Bd3 Rd5 Qb8 Rd1 Qgd6 Re5 Qdc7+ Bad7 Rg5 B1h3 Rg2 Rg1 Be4 Kh6 g7 Ba4 Bd3 Bfd7 Bg6 Bhf5 Rg3 Bg2 Rg4 h1Q Rg5 Rf8 g8N+ Kg7 Nf6 Rg8 Rg4 Nh2 Nf3 Nf1 Nfd4 Bgc6 Rg3 Qe4 Rg2 Bb2 Kb4 Nd2 Nh5+ Kh8 Nd6 Ba8 Nb7 Rg7 Bh7 Rg3 Bg6 Ba7 Ka5 Bb6+ Ka6 Ba3 Nf3 Kg8 Nhf4 Kg7 Nh5+
1n1bK3/1P2bRr1/2r3q1/n1nB2Nb/Nq6/2B1N1kn/2N4b/2NQQ1rb b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 a5 Kf5 g5 h4 d3 c4 g4 e4 a4 h5 d2 b6 a3 h6 a2 b5 a1N b7 Ne7+ Kf6 Ra6 b6 Rh7 Bb2 Rg7 h7 Nec6+ Kf5 Na5 h8N N1b3 Rh5 Nc5 Nh3 g1N Qc1 d1R Bc3 g2 Ng5 g3 Ng6 Qe8 Kf6 Nh3 Nf4 g1B Bg2 Bh2 Nd3 Rg1 Bh1 g2 Qe1 Ncb3 Na3 Nc5 Nc1 Be7+ Kf5 f6 Rh7 Qh5 Nc2 Qg6+ Kg4 f5+ Kh4 f4 e5+ Kc6 e6 Kd6 Kg4 Bd8 e7 f3 e8Q f2 Ne3 f1Q Qd1+ Qfd3 Kh4 Qe4+ Kh5 Qdd4 Kh6 Qe6+ Kh5 Ke5 Qe7 Kf4 Qe8 Na4 c5 d5 c6 Nc5 c7 Kg3 Qe7 Bd7 c8N Qb4 Qe8 d4 Qe7 Rg6 Rf7 d3 Qe8 d2 Qe7 Nbc6 b8N Rg7 b7 Rb6 Na6 Nb8 Qe8 Rc6 Nb6 Qd6 Qe4 Be6 Na4 Bd5 Nc7 Qe6 Nb5 Qe8 Na3 Qg8 Qe2 d1B Nac2 Be7 Qe6 Bf3+ Kh6 Bh5 Qd3 Bdf3 Qd2 Rf1 Qd1 g1B Bg2 Bf2 Bh1 Rg1 Bg2 Be2 Be4 Bef3 Bd5 Bh1 Nf3 Rg4 Ng5 Qe8 Kg7 Bd8 Rf5 Qg6+ Kf8 Be1 Rf7 Bd2 Ba1 Bc3 Qe4 Bcf6 Ke8 Bfe7 Bc3 Qe6 Nf3 Rg7 Ng5 Qg6 Qed3 Qh6 Q3f1 Qg6 Qfe1+
K5n1/NB4qP/1R2nk2/1n1br3/3n4/4QRrr/rnRR1qn1/3rNR1Q b - - 0 1 illegal: No possible last move
BNk3Qr/Q1nnK3/1r3n1b/RR1P3q/R2bn1N1/2b5/4qRp1/2R2nq1 b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Bb2 h6 Ng1 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kd7 a4 c5 h4 b5 e4 b3 d4 g4 e5 g5 h5 b4 f6 b2 d5 g3+ Ke1 f2+ Ke2 f3+ Ke3 g4 Kf4 c3 Kg5 b3 e6+ Kc8 a5 c4 e7 c2 e8R c1B+ Kg6 c3 Kf7 g2 a6 c2 h6 g3 h7 Bfh6 a7 Bcd2 Na3 c1Q Nc2 b1N Nh3 g1B Bb5 f1Q Nb4 b2 Qa4 f2 Nc6 Nd7 Nb8 g2 Bc6 Na3 Re4 b1N Rb4 Qce1 Rb5 Qfe2 Ra2 f1N Nf2 Qc7 Ng4 Nc3 Ra1 Bb6 Rh4 Qb7 Rc1 Ne4 Ke8 Bb4 f7 Bd4 f8R Bbc3 Rf2 Ngf6+ Ke7 Qc7 Qa5 Qh2 Qb6 Qg1 Qc5 Q1d1 Qb6 Rg8 h8Q Rd8 Qg8 Rf8 Na6 Rb8 Ba8 Rd8 Qa5 Rb6 Nb8 Rf8 Bc6 Rd8 a8R Rf8 Qa7 Rd8 Ra5 Nb5 Rh1 Nc7 Rh3 Ba1 Rb3 Bac3 Rbb5 Qdd3 Ra4 Qh3 Qa5 Rf8 Ra6 Qh5 Ba8 Rd6 Qb6 Rd8 Qa7 Rb6 R6a5 Rf8 Qg5 Rh8 Qg8+
3rb1BK/RQbr1Q2/nq2b1b1/R6b/2p5/R1B2NRr/1P2bn1R/4kn2 b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 d5 c4 dxc4 f4 exf4 h5 a5 h6 a4 Rh4 a3 Rh1 a2 Na3 gxh6 Nb1 axb1R Ra7 h5 Ra1 h4 Kf2 Kd7 Kf3 Ke6 Ke4 f5+ Kf3 Ke5 e4 Kd4 g4 h5 d3 c5 e5 h3 g5 h4 g6 c3 e6 h2 b6 h3 b7 c2 g7 c4 e7 Nf6 g8R Ne4 e8Q Ng3 Qf7 Be6 Bg2 Na6 b8R Qb6 Bd2 c1N Bb4 Nf1 Ba5 Bd6 Qc2 Bc7 Rbf8 Rd8 Qb3 Rh5 Kf2 f3 Ra3 f4 Rg3 Rhd5 Rh8 R5d7 Rh5 Ra1 Bb4 Rb1 Rha5 Ra1 Ke1 Ke3 Bc3 Rb1 Kd1 Kf2 d4 Nd3+ Kc2 Re1 d5 Re3 Be5 Ke1 Kc3 f2 d6 f3 Qb5 Ndc5+ Kd4 Rb3 Bg7 Ne4+ Ke5 Re3 Ne2 Rd3 Nc3 Re3 Nb1 Rb3 Rg1 h1B Nd2 h2 Bh3 Bg2 Rh1 Rc3 Bg4 Bh3 Bf5 Bg4 Bh7 Bh5 Bg8 Bg6 Qd5 Re3 Qb7 Rb3 Rhg1 h1B Bf6 Bg2 Rh1 Bgh3 Rh2 Bhf5 Qe7 Be8 Qf7 Bg6 Bh8 Ne3 Bf6 f1B Bh8 Nf2 Kf6 Bh5 Kg7 Be2 Kh7 Nf1 Bc3 Bd3+ Kh8 Bdg6 Rhh3 Nb8 Ra7 Na6 Rh2 Nh1 Ra5 f2 Ra3 Ne3 Ra5 f1B Ra3 Nf2 Ra5 Re7 d7 Bfe2 Ra3 Nf1 Ra5 Rc8 d8R Rb8 Rdd5 Rd7 Ra3 Ra8 Rda5 Rad8 Bf6 Rf3 Bc3 Rfd3 Rgg5 Rh3 Rgg2 Qb3 Rg3 Qb6 Nf3+
Knb5/1B2k3/2bq3n/1n1R2pr/1r1NnN2/1NqQP1N1/1Qn1qB2/2N3n1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 Kd3 b5 Ke4 g5 Kd5 d3 c4 g3 h4 d6 f5 d2 c5 b3 h5 b4 c6 b2 c7 b3 f6 g2 a5 Ra7 a6 Nh6 f7+ Kd7 f8N+ Ke7 Ne6 Rh7 Nf4 Rb7 a7 Qh8 a8N Rb4 e3 Qg7 Nge2 g1N Bg2 f1N Qc2 d1N Qd3 f2 Bd2 Qc3 Nc1 Rh8 Be1 Ng3 Nd2 f1Q Bf2 b1N Rh2 b2 Ndb3 Na3 Bh1 Ng4 h6 b1B h7 Qe2 Rh6 Bc2 Rf6 Ne4 Rf5 Nh6 Bf3 Rd8 h8Q Bb1 Qhd4 Rh8 Bg2 Nc2 Bh1 Nf7 Bf3 Rh5 Qh8 Qce1 Qb2 Nh6 Bg2 Nd7 Kc6 d5 Bh1 d4 Rd5 Ndc3 Bf3 Nb5 Bg2 Nb8+ Kb6 Nbd6+ Ka7 Qc3 Bf3 Bd7 Bh1 Bc6 c8N+ Kf6 Ne7 Nb5+ Kb6 Kf7 Nf5 Ke8 Ng3 Ke7 Nc7 Ba2 Qc4 d3 Nce6 d2 Qd3 d1Q Ned4 Qdd2 Nc5 Bb3 Bf3 Ba4 N5b3 Bd7 Kb7 Bc8+ Ka8 Qc5 Bg4 Qd6 Bd7 Qc3 Bc6 Na7 Bb7 Bc6 Nf3 Nb5 Nfd4
3nN3/5Rqb/1N2N1Pn/2np1N1n/1bkB1n1n/2r1rb2/q3NQB1/6QK b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Ra3 exf4 Rb3 b6 Rb4 axb4 a5 Qg5 axb6 Qd8 Kf2 Ke7 g4 Kd6 Kg2 Kd5 g5 h5 c3 f5 e3 b3 b7 b2 b6 d3 e4+ Kc4 e5 d5 e6 f3+ Kh2 h3 e7 h4 e8N f4 Qe1 f2 Ne2 d2 Bg2 d1N Bd2 f1N+ Kg1 f3 Bc1 Ng3 Nf4 f2+ Kh2 f1N+ Kg1 Nfe3 Ng6 Nh6 Qf1+ Ne2+ Kh2 Nc6 b8N Qd7 b7 Ra3 Nc7 Qg7 Ne7 Nef5 Nba6 Nf2 b8Q Ne4 Qg1 Nd8 Qba7 Nc5 Ne6 Nf4 Be3 Bd7 Bf2 Ba4 Nac7 Bc2 Bd4 Rg8 Qf2 Rb3 Kg1 h2+ Kf1 h3 Ne8 Nh4 Nf5 Be7 Rg1 h1N Qa1 Kd3 c4 h2 Nc3 Bf8 Qae1 b1Q Ne2 Qa2 Qb1 Rc3 Qbe1 Ncb7 c5 Kc4 c6 Bb4 c7 Nc5 c8N Rf8 Qb1 Rf7 Qbe1 Re7 Nb6+ Kb3 Qe3 Ng3+ Kf2 h1B Rf1 Be4 Kg1 Ngh5 Kh2 Bb1 Qg1 Bd3 Qef2 Bc2 Bh3 Bf3 Bg2 Bd3 Kh1 Bb1 Nf8 Ree3 Ne6 Bbe4 Nfg3 Bh7 g6 Kc2 Nf5 Kd3 Ra1 Qb3 Ra7 Qa2 Nc8 Kc4 Rc7 Qf6 Rf7 Qg7 Nb6+
q1NB4/nNnB1rb1/1K3Prr/1n3p1B/Q4q1B/RnbnB3/2kn3Q/8 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 bxa4 c4 dxc4 e5 g6 e6 fxe6 f5 e5 Ra2 e4 Ra3 Bg7 Ra1 Bf8 g4 Bd7 b4 Nc6 f6 Na5 g5 Bg4 h3 Nc6 hxg4 Nb8 Ra3 Qd6 Rf3 Qd8 Rf5 gxf5 Ke2 Kd7 Ke3 Kc6 d4 Kd5 b5 c5 b6 e5 b7 a5 g6 h5 g5 a3 g7 h4 g6 h3 Be2 h2 Qc2 c3 Ba6 a4 Ne2 a2 Bb2 a1B Ng1 a3 Nf3 c4 Qf2 a2 Nh4 c2 Qg2 c1Q+ Qd2 c3 Bb5 c2 Na3 Na6 b8B Rh7 Nc4 Nc7 Be8 Ne7 g8Q+ Rf7 g7 Nc6 Ba3 Na7 Bb5 Bc3 Bd6 a1N Rg1 h1R Rg3 Nb3 Ng6 Rh6 Bc5 Qf1 Na5 c1N Qh7 Nd3 g8B Bg7 Qh2 Qc8 Bd7 Qf4+ Ke2 e3 Nb7 Kc4 d5 e4 d6 Qd8 Ne7 Rg6 Nc8 Qe8 Kd1 e2+ Kc2 e3 Q7h4 Rh6 Bh7 Qh8 Bg6 e1N+ Kb1 e2 Ka2 Qe8 Ka3 Nc2+ Ka4 e1N Bh5 Nf3 Be3 Na3 Rh3 Nfd2 Rf3 Bd4 Rg3 Kc3 Qg4 Na1 Ka5 Kc2 Rh3 Bc3+ Kb6 Nb3 Rg3 Qfe5 Qa4 N3b5 Rf3 Nc6 Ba7 Qf4 Bf2 Qd8 Bh4 Qg8 Rf1 Qe8 Ra1 Rg6 Ra3 Qee4 Ne7 Rh8 Nc8 Qef3 Be8 Qg2 d7 Rhh6 d8B Qgf3 Bb8 Nca7 Bd7 Na6 Bd6 Nac7 Bc5 Qg2 Be3 Qd5 Na5 Qa8 Nb7
1br5/1qbN3B/2nN1Q2/5prb/1r1bQK1P/1kR1rnN1/2N1N2R/1q5b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 b4 Ke6 h4 Kd5 e3 g5 b6 a5 b5 f5 b7 g2 c3 a4 b6 g3 Na3 g4 Rc1 d3 Ra1 Bd6 Be2 Nc6 b8Q Nd4 b7 Qb6 Nb1 Kc4 e4 a3 Ke3 a2 e5 Ra3 e6 Bc7 e7 d5 e8N Ne7 Bf1 Nec6 Qd2 Kb3 c4 Nf3+ c5 Qb5 Qe1 d2 Qc1 d1B Nd6 d4+ Kf4 d3 Be2 d2 Bf1 Qb6 Ne2 g1R Rh3 g2 Qa8 g3 b8N Bb7 Rh2 Rc8 Nd7 Rh1 Qa6 g1B Bg2 Bd4 Qc2+ Kb4 Qe4 Re3 Na3 Kb3 Bf1 g2 Nc2 g1R Rc1 Rg5 Bg2 a1B Bf1 Nd8 c6 Ba8 Bg2 Qb7 Bf1 Bb8 c7 Nc6 Bg2 Bac3 Qa1 Ba5 Bf1 Rcg8 c8N Bac7 Bg2 Bc5 Qf6 Bd4 Ne7 Rf1 Ng3 Rc8 Nd5 Be2 Nc3 d1Q Bh3 Re1 Bg4 Rh1 Bh5 Re1 Ra1 Qb1 Bg6 Rd1 Bh7 Rc1 Ne1 Bd1 Nce2 Rc4 Nc2 Rb4 Ra5 Nd2 Ng1 Bh5 N1e2 Nf3 Ra3+ Kb2 Qd5 Na5 Rh3 Ne5 Ne8 Qa7 Qb5 Bh1 Rc3 Nac6 Nd6 Qb7 Rh2 Nf3 Qbe5 Ka2 Qe4 Kb2 Rc5 Kb3 Rc3+
n1Nq1QQ1/n1Bp2q1/1Pn1B1qr/1n6/1Q2R2Q/2N2nrk/1b3K2/q3Qb2 b - - 0 1 illegal: No possible last move
N2Qn3/p1RQNqN1/3N2n1/K1b1N3/1n3q2/kB3n2/P2B1q1n/3q1rbr b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 f5 d4 f3 c5 f4 c6 bxc6 d5 cxd5 Kd2 d4 Ke1 d3 Qc2 Ba6 Qd1 Bb7 b4 Be4 Nd2 Bf5 gxf5 h5 Nh3 Bc5 Rg1 Na6 Rg4 hxg4 Ng1 Bf8 Bh3 Qh4+ Kf1 Rb8 Qb3 Nf6 Bb2 Ra8 Re1 Rh7 Bc1 Ng8 Qd1 Kd8 Bg2 Qh6 Nh3 Nb8 Kf2 Qd6 Rh1 Qf6 Bf1 Ke8 Ke1 Qd8 Ng1 Rh8 e4 Ke7 h4 Kd6 f6 c5 h5 g5 h6 c4 b5 Kc5 b6 Kb4 h7 d5 e5 g3 b7 g4 e6 c3 e7 c2 e8Q d4 f7 g2 Nb1 d2+ Kf2 d3 Qe3 Qd4 Bb2 c1Q Rh5 Ne7 Nc3 Nd7 b8N Ng6 Na4 Bc5 f8N Nf6 Rf5 Ne8 Bc3+ Ka3 Rf7 Qd7 Rg7 Qf7 Nc6 Rb8 Be2 Rb1 Ne6 Rf8 h8N Qc2 Qe1 d1Q Nb6 d2 Ne7 Qdc1 Bf1 d1Q+ Qd2 Qcf5 Qed4 Qcc2 Ne2 g1N Nc1 Q5f6 Bc4 Qa4 Qe1 g3+ Kf1 f2 Bb3 Qh4 Qd7 Nf3 Nd3 Qe4 Bd2 Rc1 Kg2 f1N Na8 N1h2 Ne5 Qhf6 Qf1 Qd4 Qd3 Qf2+ Kh3 g2 Qd8 g1B Q3d7 Nf1 Kg4 Ra1 Rh7 Rb1 Ng7 Ne3+ Kh3 Nd5 Kg4 Qg8 Nhf7 Nb4 Nd6 Qgf7 Rh2 Rh8 Rg2 Rh1 Rh2 Qd5 Rh7 Q6h4+ Kf5 Qf7+ Ke4 Qff1 Qe6 Ne1 Qb8 f3+ Qg4 f2 Bd5 Nbd3 N7c6 Qb3 Ngf5 Qd7 Qd8 Nf3 Bf7 Qa4+ Kd5 Qb4 Be6 Qf4 Rf7 Qe1 Ng7 f1N Re7 Qe2 Bg8 Qdf5 Rc7 Qhf2 Ne7 N1h2 Kc6 Rf1 Kb5 Qd1 Bb3 Nb4 Ka5 Qf7 Qgd7
bK5B/2Q1k2B/1B1N4/q4PRp/qnrBbN1q/2b2r1b/1r1n4/1B2Qr2 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Ra2 fxe4 Rb2 b6 Rb4 axb4 a5 Ra7 axb6 Ra8 Ke2 e5 f4 d5 c4 h5 g4 b3 b7 e3 Kd3 b2 g5 h3 g6 e4+ Ke2 h2 c5 Ra2 c6 Bh3 g7 Qh4 b6 Ke7 f5 Na6 b8B Nb4 b7 Nf6 g8B Bg7 Na3 b1B+ Qd2 Rb2 Bh7 Rc8 c7 Bh8 Nc4 d3+ Kd1 d4 Ba7 Bg7 Qe1 d2 Ke2 d1R+ Bd2 Bc2 Bc3 Rd3 b8B Bh8 Nd6 Bb1+ Bd2 Rdb3 Bb6 d3+ Kd1 Bg7 Bc3 d2 Ne2 Bd3 Rg1 h1B Nf4 Bc2+ Ke2 Bh8 Bg2 d1Q+ Kf1 Qa1 Ke2 Qa4 Bcd4 Bb1+ Kd1 e2+ Kc1 e3 Be4 Rd3 Rg5 Rdb3 Bc2 Ba8 B8a7 Ne4 Bd3 Re8 c8Q Nd2 Bg7 Rd8 Qc7+ Rd7 Bbd4 Bc2 Bab6 Bb1 Bc4 Bbe4 Bd3 Ra3 Bb1 Rab3 Qd1 e1R Bge5 Rf1 Qe1 e2 Bg7 Rg3 Bge5 Rbb3 Bg7 Rbf3 Kb2 Rg4 Bge5 Bd3 Kc3 Bde4+ Be3 Rg2 Kd4 Rgf2 Kc5 Rh2 Ba1 Bc3 Bd4 Rg2 Ba7 Rgf2 Kb6 Rg2 Qc5 Rc7 Qa5 Rc4 Bb2 Bec6 Kc7 Be4+ Kb8 Rh2 Bab6 Rhf2 Qc1 e1Q Bh8 Nb3 Ba1 Rb2 Qc5 Qd2 Qe1 Qd5 Qc6 Nd2 Qc7+ Qd7 Ng2 Bg7 Bc2 Rb1 Be3 Qa5 Nf4 Bf6 Bc3 Rb2 Bb6 Bg7 Bb1 Bf6 Bcd4 Bg7 Be3 Bc3 Qc5 Qc6 Bed4 Qca4 Qc7+
2Qrqr1q/3r1q2/r7/2Q2Pb1/pnr1R3/kn3RRN/3q1N2/BKR2R1n b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 f4 hxg4 e4 b5 f5 bxa4 Bc4 Ba6 Ba2 Bd3 Be6 fxe6 f6 e5 Nd2 Bc4 Nb1 Be6 Nd2 Bf5 exf5 e4 Nb1 Rh4 Ra2 Rh5 Ra1 Rh8 Kd2 d5 h4 Kd7 c4 Kd6 Kc2 Kc5 h5 Kb4 c5 g5 f7 e5 h6 a5 c6 g3 h7 e3 b3 g2 c7 g4 c8Q d3+ Kb2 a3+ Ka2 d2 Nh3 g1Q Qc6 e2 Qdc2 e1Q Qd3 d1R Rh2 d4 Nd2 g3 Qf1 e4 Qg2 d3 Nb1 a4 Qh1 e3 Nd2 g2 Qe6 e2 Bb2 Nh6 Qe5 Be7 f8R Bg5 Nf1 d2 Qd5 Ra6 Rc1 Qa7 Ng3 g1R Re8 Qf7 Rg2 Nc6 Ne4 Rf8 h8R Ng4 Ba1 Nf2 Kb1 Qb8 Qh2 Nh1 Qc7 Qf2 Rh5 e1Q Rg3 Qfe3 Rf3 Rg4 Nef2 Rc4 Re4 Qd8 Qc8 a2+ Kb2 Q1e2 Rhh4 Q3d3 Rhf4 Qde8 Rg3 Qeh5 Rff3 Qh8+ Qd4 Re1 Qe5 d1R Qd4 Qe3 Qe5 Rd7 Qd4 Kb5 b4 Rd1 Qc3 Rd8 Kc2 R1d7 Kb2 Kb6 b5 Kc5 b6 Qd3 Qd4+ Kb4 b7 Qe2+ Rc2 Qd2 b8R+ Ka5 Rbb3 Nb4 Rbe3 Kb5 Re1 Ka5 Rf1 Kb5 Ka3 Ka5 Rcc1 Kb5 Bc3 a1N Qd6 Nb3 Ba1 Nc2+ Ka2 Ka5 Qf6 Kb4 Kb1 Ka3 Qd6+ Nb4 Qdc5
3NKBr1/1N1B1Q1q/1b6/3b2bn/BBPqb1rQ/4prbk/2Rr4/2B2b2 b - - 0 1 illegal: No possible last move
3Q3N/8/r1br1n1p/r1bBBB2/3N1Rb1/BP2Q2B/1qpn1K1k/2qq2n1 b - - 0 1 legal: proof: h4 b5 c4 d5 f4 g5 f5 gxh4 b3 dxc4 f6 b4 Na3 exf6 Rb1 f5 Rb2 a5 Nb1 f4 a3 a4 axb4 a3 b5 axb2 d4 Kd7 g4 Ke6 e4 f5 b6 c5 d5+ Ke5 d6 h3 g5 h6 d7 f3 g6 f4 b7 c3 g7 c4 Nd2 b1Q Bg2 h2 Nf1 f2+ Ke2 f3+ Ke3 c2 Bb2+ c3 Bc1 Ra5 Ba3 c1Q+ Qd2 c2 Nh3 Nf6 g8B Nc6 Ng3 f1R Ne2 f2 Ng5 Rd1 Bd5 f1N+ Kf2 Qbb2 Qe3 Nd2 Nd4 Bc5 Rf1 h1B Bh3 Re8 Bf5 Re6 b8B+ Rd6 Qe2 Kf4 e5 Re1 e6 Ne5 e7 Nef3 e8B Ng1 Nf7 Bg2 Qe7 Re6 Nh8 Bf3 Bh5 Bb7 Bhg4 Bc6 Bh3 Bg4 Re1 Kg5 Re4 Kh4 Ke3 Kg3 Bc7 Qf8 d8Q Kh2 Kf2 Qf7 Rf4 Qh5 Bfe4 Bf5 Bb8 Qhd1 Qa7 Bg4 Bf5 Ba8 Qae7 Rda6 Bc7 Red6 Qe3 Bc6 Bb8 Rd7 Be5 Rd6 Bfe4 Be8 Bd3 Bc6 Bf5
qBr1Bb2/1b1nQ1R1/4bnN1/k5K1/b7/1p1B1r2/rB1P1pR1/qBQ1b3 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Na3 exf4 Qb3 bxa3 Qc2 Qf6 Qd1 Qd8 Kf2 Kd7 Kf3 f5 e4 b5 g4 c5 g5 Kc7 d6+ Kb6 g6 h5 e5 c4 d7 b4 e6 c3 e7 c2 e8Q b3 g7 h3 Qg6+ Nf6 g8B a2 Qf7 h2 Bc4 h4 Qg7 h3 Qe1 Ka5 Rb1 a1B Ne2 Be5 Bb2 c1Q Rg1 h1B+ Rg2 h2 Bh7 Bd4 Bf7 Bf2 Be8 Bg3 Qf1 Be1 Qe7 Qd1 Rc1 Rg8 Rc7 Qa1 Bf7 Qe8 d8B Be6 Qg1 Nbd7 Bfg6 Ka6 a5 Kb5 a6 Ka5 a7 Rc8 a8B Rg7 Ng3 Rf7 Ke2 f3+ Ke3 f2 Kf4 f1B Nh5 Bb5 Be4 Ba4 Kg5 f4 Bb1 f3 Qf1 f2 Qc4 Ra8 Qc1 Ra7 Nf4 Ra6 Rg4 Bb7 Rg2 h1R Bh5 Rh3 Bhd3 Rf3 Ng6 Rg7 Qa3 Rg8 Qe7 Nb6 Rd7 Rh8 Bc7 Qa8 Bb8 Rg8 Rd6 Nbd7 Rb6 Bg7 Rb4 Rc8 Rbg4 Bf8 Nh4 Rac6 Be8 Rc3 Ng6 Rc2 Ba3 Ra2 Bb2 Bbc6 Rh4 Bcd5 Rh7 Bb7 Rg7
Nn5n/1qQ4r/1QQ2n2/P1q2bbr/1Bb4R/QQRpkp2/4Bn1K/4n3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 h5 Nd2 Qa5 Ne4 Qd8 Nf2 f5 gxf5 Be7 Ng4 hxg4 Rb1 Bc5 Ra1 Bf8 Kf2 Ke7 Kg2 Kd6 e4 Kc5 h4 g5 a4 b5 c4 d5 h5 d3 f6 Kd4 h6 g3 h7 d2 e5 b3 a5 b2 c5 b1B e6 g4 e7 b4 e8Q b3 f7 b2 c6 Ba2 c7 b1Q Rh4 Be7 f8Q Bg5 Qd7 Nf6 Bb2+ Ke3 Qff7 d4 Qdd5 d3 Qb5 Bc4 Qb4 Qd6 Rh3 Ra7 Bc3 Qc5 Qdb3 d1N Ra3 Bf5 c8Q Nf2 Nf3 Rb7 Kg1 g2 Kh2 g1N Qfc7 Ne2 Qbb6 Qb2 Bb4 g3+ Kg2 Ra7 Nd4 Rg8 Qcc6 Rf8 h8Q Nh5 Qc2 Ba2 Qba6 Bc4 Be1 Rd7 Qb1 Qb7 Nb5 Rg8 Qhb2 Nf6 Q1a2 Rh8 Nc7 Rh5 Rh4 Rdh7 Qd8 Ng1 Bb4 Nf3 Rc3 Ne5 Qbb1 Nf7 Qbb3 Nh8 Kg1 g2 Kh2 g1N Qaa3 f3 Be2 Ngh3 Qdd7 Nf4 Qab6 Ng2 Na8 Ne1 Qdc7
2Q1Nb1q/r1b1n3/Qpk1K1p1/brB2B1R/3Q2rQ/7b/1P3b2/n1q1R1Q1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 hxg4 Qc2 e5 Qb3 exf4 Qb4 axb4 Nc3 bxc3 Kf2 Kd7 e4 c5 h4 f5 a4 b6 d4 f3 Ke3 g6 Kf4 c2 Ke5 f2 d6 g3 d5 f4 h5 f3 a5 g2 h6 c4 h7 c3 a6 Qc7 a7 Bb7 Be3 c1B Bd3 f1R Ne2 g1B Bc5 c2 Ng3 f2 Nh5 Bc8 Ng7 Ne7 Rh5 Bd2 Re1 c1B Ne8 Ba5 Kf6 Be3 e5 Na6 Bc2 Bh2 e6+ Kd8 d7 Nb4 Bb1 Rg1 Bf5 f1Q Kf7 Bf2 Kf6 Rg8 h8Q Nc2 Kf7 Qd6 Qd4 Na1 Qh4 Be5 Qh1 Rg4 Qg1 Beg3 Kf6 Qe5+ Kf7 Rb8 a8Q Qh8 Qa6 Ra8 Nd6 Kc7 Qb5 Rh4 Re5 Bb4 Bd3 Ra5 Qa6 Qc1 Re1 Nc6 d8Q+ Kb8 e7 Rb5 e8Q Ba5 Qg5 Rc4 Qh4 Kc7 Be4 Bg4 Bf5 Rg7+ Ke6 Bh3 Qea8 Bh2 Qe8 Rg4 Qd7+ Kb8 Ne8 Be5 d6 Beg3 Kd5 Bf4 Qe6 Ra7 d7 Bc7 Qe3 Ne7+ Ke6 Bf4 Qd4 B4g3 Nf6 Kc7 d8Q+ Kc6 Qdc8+ Bc7 Ne8
rq6/1p1p3n/Nnb2r2/P2B1R2/k1Q3Nq/7r/bnKQ1r1Q/2R1QQ1r b - - 0 1 illegal: Other
R2Qrq2/N3r1rR/3Brnr1/P5R1/B1R2r2/pK3pb1/2Rr4/1Qb1k2n b - - 0 1 illegal: No proof kernel
2BN4/1K1kNb2/1N1r1rN1/1q2pb1Q/1q2n3/4RNbp/B3P1rQ/n4qq1 b - - 0 1 illegal: No possible last move
1bB1k1r1/RKbb2qr/1B4qn/3P4/4B2Q/q1Q1pN2/4r1p1/B2NnBr1 b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 e4 e5 axb5 exf4 e5 c5 Ra3 cxb4 Re3 Rh6 Re2 Rh8 Re4 dxe4 Kf2 f5 d4 g5 c4 a5 h4 f3 Ke3 f4+ Kf2 b3 c5 e3+ Ke1 b2 c6 g3 c7 a4 h5 g4 b6 a3 h6 g2 d5 f2+ Ke2 g3 Kf3 a2 Ke4 a1B b7 f3 e6 Qd6 e7 Nc6 b8B Bd7 c8B Ne5 h7 Qa3 Rh4 Nh6 Qd2 Nd3 Nc3 b1Q Bc7 Ne1+ Ke5 Qg6 Ra4 Rg8 h8Q Ra7 Bb6 Rb7 Bc4 f1Q Ra7 f2 Nf3 g1R Bb2 Qg2 Nd1 f1R Qc3 Rf2 Bf1 Re2 Kd4 Bg7+ Kc4 Be5 Qf6 Qb3+ Kc5 Bc7 Qh4 Qa3+ Qcb4 Be6 Kc6 Bg4+ Bf6 Bae5 Qc3 Bed6 Bfd4 Bb8 Be5 Rd7 Bf6 Bdc7 Kb7 Qg7 Nd4 Qe4 Nf3 g2 Bfd4 Qeg6 Be5 Kf7 e8B+ Kf8 Bed4 Re7 Bb5 Bd7 Bd3 Ke8 Bc2 Qh8 Be4 Rh7 Qc4 Qhf6 Ba1 Qfg7 Qc3
1b2n3/2Q1b3/RK1Bk3/1N1P1R1q/5q1p/2n2Rnb/1p2nQ1r/1RrR2Nq b - - 0 1 legal: proof: b4 d5 h4 a5 c4 axb4 cxd5 g5 f4 gxh4 e3 e5 a3 exf4 Bd3 Nf6 Bc4 Ng8 Ba2 b3 Qh5 bxa2 Qe2 Ra4 Qd1 Ra8 Kf2 h3 g4 Ke7 d3 f5 e4 c5 g5 h5 g6 b5 e5 b4 g7 h2 a4 f3 Ke3 c4 Kd4 f4 Kc5 c3 e6 b3 a5 c2 a6 f2 a7 f1N Ne2 f3 Kb5 f2 Nbc3 Nc6 Bh6 c1N Qc2 Ng3 Rd1 h1Q Bf4 f1Q Ng1 Nf6 g8R Nb4 Rg5 Qe8+ Kb6 h4 Bb8 Qh5 Rb1 a1B Nb5 Be5 d4 Qf4 Qb2 Nba2 d6+ Kd8 e7+ Kd7 e8R Rh6 Re6 Rh7 Ka5 Ne8 Bc7 Rh6 Kb6 Be7 Qh2 Bb7 Qe2 Bg2 Rf5 Bh3 Qf3 Bh8 Re4 Be5 Re3 Rg6 Qf1 Rh6 Rf3 b2 Ra1 Rc8 a8R Re6 Bb8 Rc3 Rb1 Rc2 Ra6 Re2 Rdd3 Rh2 Qf2 Rg6 Rd1 Nce2 Rf7 Rg5 Bc7 Ke6 d7 B5d6 d8Q Rc5 Rf5 Rc1 Qb8 Nac3 Qb7 Ba3 Be5 Bed6 Qh7 Bb8 Qc7 Bf8 Bd6 Be7 d5+
r1Q3QN/4b3/krQ2Npn/1q2Q2p/rb2q1b1/r1Q2B2/1K1P3R/B1n1n3 b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 g6 c4 dxc4 h4 e5 f4 exf4 b4 Qd7 g5 Qd4 h5 Qd8 Ra6 gxh5 g6 h4 g7 Qf6 Rc6 Qd8 Rg6 fxg6 e4 Kd7 b6 Kc6 b7 Kb6 e5 h5 e6 c5 e7 a5 e8Q h3 b5 c3 Na3 f3 Bg2 h2 Qa4 c4 Kd1 c2+ Ke1 f2+ Ke2 f1R Qe5 c3 Nh3 Be7 Qf5 Qd7 Qe5 Nc6 Nb1 Rf6 Qg3 Ne5 Bb2 c1N+ Kd1 Nf3 Kc2 Nh6 g8Q Qd5 Qe5 Bg4 b8Q+ Qb7 Qa1 a4 Qbe8 a3 Ng5 a2 Nf7 Ra4 Qc6+ Ka5 b6+ Ka6 Qgc8 Re8 Nh8 Re6 Re1 h1Q Re2 Qf1 Rf2 Qb5 Bh1 Rd8 Rh2 Rd3 Qg8 Rd8 Bg2 Ra8 Qgc8 Nh4 Bf3 Ng2 Na3 Bb4 Nc4 Ra3 Nd6 Ne1+ Kd1 Ra4 Ne4 Be7 Nf6 Rd6 Qb1 a1R Qd3 R1a3 Ba1 Re6 Qg8 Bb4 Qce4 Qe7 b7 Rb6 b8Q Qb7 Qec4 Qe4 Qcd5 Ng2 Kc2 Ne1+ Kb1 c2+ Kb2 Nb3 Qc6 c1B+ Kb1 Bb2 Qbd8 Nc1 Qdc2 Bd4 Qd3 Be3 Kb2 Bec5 Qdc3 Be7 Qdc8+
2K2N1b/2Qn4/1p4r1/kR2pQq1/1qnB2bn/B1BBP3/qB6/b1R1q1r1 b - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Nc3 h4 Ne4 dxc6 Ba3 c5 Bc1 c4 Ng3 hxg3 f4 Kd7 h4 Kc6 a4 Kb6 d4 g5 Kd2 c5 Ke3 e5 Ke4 g2 f5 g3 d5 c3 d6 b3 Kd5 b2 f6 b1N f7 c2 e3 g4 h5 c4 d7 c3 Ke6 Qh4 h6 Nd2 h7 Nh6 Bc4 Bg7 f8B Ka5 Nh3 g1Q Qf1 b6 Bfa3 g2 Bcb2 c1Q Nf4 c2 Ng6 g3 Bd3 Nf5 Nf8 Rg8 h8B Qe1 Rc1 Nc4 Bd4 Qhh2 Bab2 Nh4 Qf5 Qb4 Bdc3 Bf6 Bg7 Qf1 Bd4 g1Q Bdc3 Bb7 d8B g2 Be7 Bf3 Bc5 Nd7 B5d4 Bg4 Bh6 Bh8 Bg5 Qe1 Be7 Qgf1 Bd6 Ka6 a5 g1Q B6c5 Kb5 a6 Ka5 a7 Rg6+ Ke7 Rc8 Bd6 Rc6 Kd8 Rg5 Be7 Rcg6 Kc8 Qhf2 Rb1 c1B a8Q+ Kb5 Qae4 Ka5 Qc6 Qc2 Qc7 Qfe2 Ba3 Bb2 Rc1 Ba1 Bab2 Qa4 Rh2 Qb5 Bec5 Qc2 Rf2 Qb3 Rfc2 Qa2 Bd2 Qc3 Bca3 Qcb4 Bd2c3 Rg8 Qf1 R5g6 Qf5 Qgg3 Qh5 Qf4 Qf5 Qg5 Qf3 Rh6 Qg2 Qf6 Rf2 Bf5 Qf1 Rg1 Rfc2 Qg5 Bd2 Bg4 Qf5 Rg6 Rc3 Ka4 R3c2 Na5 Rc5 Nc4 Bd2c3 Ka5 Rxb5+
1bk5/4BQ2/1B2KnP1/QBpr2r1/NBnN4/bq4bp/Bb2b2b/R2n4 b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 e4 dxc4 h4 f5 Ra2 fxe4 Ra3 g5 hxg5 bxa3 Ke2 Kd7 Ke3 e5 d4 c5 g4 h5 f4 b5 a5 c3 a6 a2 f5 a1B a7 h4 g6 b4 g5 b3 d5 b2 g7 c2 f6 h3 d6 Qb6 f7 Rh5 g6 Rg5 Bd2 c1B Nc3 b1N Na2 Nc3 Ba6 Ba3 Be2 Qb3 Nf3 Nc6 Be1 Nf6 g8Q Na5 Qc2 Ba6 Qd2 B1b2 Bb5+ Kc8 Nd4 Rb8 a8B Nd1+ Ke2 e3 Kf3 e2+ Nc3 e4+ Kf4 e3 Na4 Rb6 Bd5 Nc4 Qa5 Rc6 Bc3 e1B Bb4 e2 Qh7 Bh6 f8B Rc7 Qg8 Rd7 Qf7 Bf2 Be6 e1B Be7 Bg1 Bd5 Rg4+ Kf5 Bh2 Rg1 B6f4 Ke6 Rg5 Rh1 Beg3 Rf1 Nc3 Ra1 Be5 Be4 Nd1 Bb1 Bb7 Ba2 Bf3 Bd8 Be2 Bb6 Rd8 d7+ Kb7 Be1 Bb8 Bd2 Rh8 d8B+ Kc8 Bb4 Rhh5 Be7 Rd5 Bb1 Rhg5 Ba2
bnNq1R2/5R1K/3prbR1/1r3RbQ/1Nnp1R2/6P1/Bb2Q2b/2k3bn b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra2 fxe4 Ra4 Qb6 Ra1 Qd8 h4 g5 f3 gxh4 Ra6 h3 Ne2 h2 Ra1 Nc6 Be3 Nb8 Bg1 hxg1B Kd2 Kf7 b4 Ke6 c4 Ke5 c5 a5 f4+ Kf5 c6 e5 c7 h5 b6 a4 b7 h4 b5 h3 b6 a3 Nc1 h2 Nc3 a2 Nd5 e3+ Kd3 d6 Qe2 Ne7 g3 Ra5 Rb1 a1B Na2 Bb2 Nab4 Rb5 Bg2 Ng6 Rf1 Be6 c8Q Bg7 Qc5 Re8 Rf3 Bf6 Ne7+ Kg4 f5 Bd5 Nc8 Bc6 Qd5 Re7 Ke4 Re6 Qf2 e2 Rf4+ Kg5 Qe3 e1B Qe2 Bef2 Bh3 Na6 b8R Ba8 Rb7 Nb8 Rf7 Be3 b7 Bd2 Kd3 e4+ Kc2 e3 Kd3 Ne5+ Ke4 Nc4+ Qe5 Bf2 Rf1 Bg1 R1f3 h1N Rf2 Nc6 b8R Bh2 Rbb7 Nb8 Bg2 Bg7 f6+ Kg6 Rf5 Bh8 R2f4 Bdc1 Qd1 e2 Bf3 e1B Qe2 Bf2 Rg7+ Kh6 f7 Bfg1 f8R Bce3 Rgg8 Bf6 Bh5 Bd2 Bf7 Bdc1 Rfg4 Bcg5 Rgf4 Re7 Bd5 Re8 Rbf7 Re6 Rf3 Kh5 Rg6 Kg4 R3f4+ Kh3 Qh5+ Kg2 Rf3 Ba1 R5f4 Bb2 Kf5 Nf2 Qe3 Kf1 Qd3+ Ke1 Qc2 Ne5 Ba2 Nh1 Qc4 Kd2 Qe2+ Kc1 Rh6 Nd3+ Kg6 Ne5+ Kh7 Nc4 Rg6 Na6 Rf5 Nb8 R3f4
k1b2rQR/4b1Q1/1n3bQp/BP5K/p5Q1/nnN1q2Q/RNn4n/2b2r2 b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 a4 cxd4 c3 g5 Bc4 gxh4 Bb3 b5 axb5 d3 Bc2 dxc2 Ke2 d5 g4 Kd7 f4 Kc7 b4 Kb7 g5 e5 b6 a5 c4 h3 c5 h2 g6 d4 f5 h6 b5 d3+ Ke3 d2 g7 a4 f6 Qe8 f7 Na6 Nc3 Be7 f8Q Nf6 g8Q Nd7 Qh5 d1N+ Ke2 e3 Kf3 e4+ Kg4 e2 Qf1 e1N Nge2 e3 Nd5 Nb2 Bd2 c1B Ndc3 Nc2 Rg1 h1N Nd1 Nc4 Ra2 Ng3 Qg7 Rf8 Nb2 N4a3 Nc3 e2 Qhg6 e1B Qh3 Nf1 Kh5 B1h4 c6+ Kb8 b7 Nh2 Rd1 Nac5 c7+ Ka7 Be1 Nb6 Rd8 Rf1 Bd2 Bhf6 Be1 Qc6 Rh8 Qe4 Qhg4 Qe3 Bd2 Bd7 c8Q Nb3 Qcg8 Rf8 Qh3 Kb8 Qc4 Bc8 Qcg4 Kc7 b8Q+ Kd8 Qa8 Kc7 Qd5 Kb8 Qdg8 Kb7 Ne2 Ka7 Ba5 Ka8 Nc3
N1K1Rrr1/2n2pBN/2N5/2n2r2/qB1q1n1P/1brQn2N/3bp3/N2Q1k2 b - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 b4 e5 f4 b6 a5 d6 Bg2 exf4 e5 d5 Be4 dxe4 Ra4 Qd4 axb6 Qd7 b5 Qd8 Rb4 cxb4 Kf2 Ke7 d4 Ke6 c4 Kf5 h4 a5 e6 g5 e7 a4 e8N a3 c5 a2 b7 a1Q c6 g3+ Kg2 g4 d5 b3 b6 b2 c7 f3+ Kf1 g2+ Kf2 g3+ Ke3 Kg4 Kd4 e3 Ke5 e2 d6 f2 d7 f1N Rh2 Ne7 Kd6 Qa4 Qc2 Na6 b8N Ne3 b7 Nc5 Nh3 Kf3 Bd2 g1N Bb4 g2 Na3 b1R Nf6 Bh6 Nh7 Rb3 Nc6 Rf8 b8B Rc3 Ba7 Bb7 c8N N7d5 Nb6 Nc7 Bb8 Ra5 Na8 Ba6 Ba7 Bc4 Bb8 Qc8 d8Q Bb3 Ke7 Qg4 Qdd3 Qd4 Rh1 N7a6 Be5 Nc7 Bg7 Kg3 Qa2 Kf3 Nc2 Bf4 Na1 Rb5 N3g5+ Kf2 Rh3 Kf1 Qac2 Ra5 Rg3 Nh3 Rg4 g1R Rg3 Nd1 Re3 Rg4 Re4 Bd2 Re6 Nf4 Nh3 Ne3 Re5 Ncd5+ Kd6 Rg5 Re8 Nc7+ Ke7 Qc4 Kd8 Qd4+ Kc8 Rb5 Be5 Rgg8 Bg7 Nb7 Bh6 Rf5 Bg7 Nc5 Qd1+
1BbB2r1/qQbR3P/r2q2b1/Bb1Bp3/6n1/pK1RN1b1/1B1r1k2/q3Q3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 f4 hxg4 e4 b5 f5 bxa4 Nd2 Na6 Ndf3 Nb4 Ng5 Nd5 Ne6 fxe6 e5 Ndf6 exf6 e5 Qd3 e4 Qd2 Rh5 Qd1 Rh8 Kd2 Kf7 b4 a5 h4 d5 c4 e5 Kc2 g5 b5 e3 c5 e2 h5 e1B c6 g3 c7 d3+ Kb2 d4 h6 a3+ Ka2 g2 b6 d2 b7 a4 b8B d3 h7 g4 Qe2 d1B Qd2 g3 Qc3 d2 Ne2 g1Q Bh3 g2 Ng3 Bd6 Qb2 Bc2 Qb6 d1B Qb1 Qa7 Bb2 g1R Nf1 Rg2 Ne3 Rd2 Bg2 Bg3 Rh3 Be2 Qe1 Nh6 Rd1 Rg8 Bc6 Bb5 Bd5+ Be6 c8Q Ng4 Qb7+ Bc7 Rh5 Qd6 Rh3 Ke8 f7+ Ke7 f8B+ Kf6 Bg7+ Kg5 f6 Kf4 f7 Bc8 f8B Bcd3 Bf6 Bg6 Ka1 a2 Bd8 Qac5 Bfe7 Ra6 Bh4 Qa7 Bhe7 Qc6 Bb4 Qd7 Ba5 Qd6 Bc1 Rd4 Kb2 a3+ Kb3 a1Q Bb2 Rd2 Rc1 Bgf5 Rc3 Be4 Rd3 Kf3 Qc1 Kf2 Rh6 Qe7 Rd6 Bg6 Rd7 Qd6 Qe1+
2B4n/qQQ1K1n1/nn1rbn2/Q1Bk1PQr/N5p1/1r6/1p2r2R/r3RQ2 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e3 axb4 Nc3 e6 Ne4 fxe4 g5 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Bg2 g4 Bh3 Qg5 Bf1 Qd8 Ke2 Kf7 h4 b5 c4 g5 a4 d5 f6 g3 h5 d3+ Ke3 g4 Kd4 g2 Kc5 d4 h6 b3 a5 e3 a6 b4 h7 e2 a7 e1R Qe2 e5 Ra5 Ke6 f7 b2 f8Q b1N Rh5 b3 Qd2 b2 Rg5 e4 Ne2 g1N Qc2 e3 Ra2 d2 Qg6+ Nf6 Bg2 d1R Bd2 d3 Qgh6 Nf3 Ra1 Nc3 Rh5 Ng5 Bb7 Nd5 Rh2 Nf7 Nc3 e2 Be3 d2 Na4 Nb6 Qg5 Na6+ Kc6 Qd4 c5 Rb8 a8Q Rf1 Rc1 e1R Bf2 Rg8 h8Q Re2 Qh7 Nh8 Qc7 Rh1 Qa7 Rdf1 Re1 d1N Be3 Rg6 Bg1 Nbd7 Qab6 Ne3 Qa5 Nf5 Be3 Nd6 f5+ Ke5 Qg8 Rfg1 Qc4 Nb6 Bf2 Be6 Bc8 Ke4 Be3 Nde8 Bf2 Re3 Qf1 Re2 Be3 Ng7 Bf2 Nfd5 Kd6 Nf6+ Ke7 Kd5 c6+ Ke4 Rg2 Rh5 Rh2 Qe3 Qh4 Qa3+ Bc5 Kd5 Qg5 Ra8 Rh4 Rg3 Rh2 Rb3 Qb8 Qa2 c7 Qa1 Qb4 Nfe8 Qc3 Nb4 Ba6 Na2 c8Q Nb4 Qcc7 Rf6 Bc8 Bf7+ Be3 Rg6 Nc5 Rd6 Rh3 Nf6 Rh2 Be6 Bf2 Qa6 Bd4 Qb7 Qcd2 Ra1 Na4 Na6 Bc5+ Ke4 Qb4+ Kd5 Qa5 Qa7 Qbb7+
4Q1BB/1b2Qn1q/1bqnK1b1/3rN1Q1/q4Q2/P3pnpQ/1R3Rqn/6k1 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 hxg4 Nc3 b5 b4 axb4 e5 c5 Ne4 fxe4 f5 cxd4 Bg5 Ra6 Bc1 Rf6 exf6 Qb6 Ne2 Qc7 Ng1 Qd8 Kd2 Kf7 h4 d5 c4 g5 h5 e5 c5 d3 Ke3 b3 c6 b2 c7 b1B a3 b4 h6 d2 h7 b3 Bb2 g3 Rh3 g2 Rh6 d4+ Kf2 d3 Kg3 e3 Kg4 e4 Nh3 g1Q+ Bg2 e2 Rh4 e1N Be5 e3 Rh5 b2 Qc1 d1N Nf4 d2 Ng6 Qd5 Bd6 Na6 Be5 Qc6 Qc5 Bb7 c8Q Nh6+ Kg3 g4 Kf4 g3 Rh1 Nf2 Qa7 d1Q Ra2 Nc7 Qa5 Bc5 Rh4 Nb5 Rh2 Rd8 h8Q Nd6 Bf3 Nfg4 Rf2 Bb6 Qca8 Ng8 Qh3 N8h6 Qc8 Qg2 Bd5+ Ke8 Bc3 Nh2 Ke5 Nef3+ Ke6 Nhf7 Ne5 Qda4 Qd7+ Kf8 Qe7+ Kg8 Qb5 Be4 Bc4 b1Q Rab2 Bc2 Qg4+ Kh7 Qh3+ Nh4 Bb3 Kh6 Bd5 Kg5 Bd4 Nh6 f7+ Kh5 f8Q Nhf7 f6 Bg6 Qg8 Kg5 Bc4 N4f3 Qge8 Kf4 Qa5 Bh5 Qd5 Qh7 Bc3 Bg6 Bb3 Nh8 f7 Rd7 f8Q+ Nhf7 Bc4 Qg1 Qfh6+ Ng5+ Kf6 Nc8+ Qde6 Rd3 Nd7 Nd6 Rg2 Nd2 Qe5+ Kf3 Bg8 Ngf7 Qhg5 Rd5 Ke6 Qf2 Qef5+ Ke2 Qff4 Kf1 Bh8 Ndf3 Ne5 Qfc2 Rd2+ Kg1 Rd3 Qe2 Rdd2 Qg2 Rf2
5BnK/4pr1b/nRB1Q2q/1N1rR3/P3bq2/B1B4p/1Qp2B2/1bk2r1n b - - 0 1 illegal: No possible last move, all moves rejected
4qr1R/2N1np2/1K2Q2R/r1Pprr2/1k2R2n/2bR1R2/3nNQBp/1b4r1 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Bd2 exf4 Bb4 axb4 a5 b6 axb6 Ra4 Nc3 Ra6 Nb1 Ra8 Kf2 Ke7 g4 Kd6 e4 Kc5 c4 d5 e5 h5 b7 f3 b6 b3 e6 d3 Ke3 f2 g5 h3 e7 h4 e8Q b2 g6 d2 g7 h2 Ra2 h3 Bg2 f1R Ne2 Kb4 Kd4 Ne7 g8R Bf5 Nbc3 b1N Qc2 Nd7 b8R Ne5 b7 Bg7 Nb5 Ra5 Ra3 d1R+ Rd3 Rde1 Nc7 Nd2 Qc6 Be4 Re8 Rf5 Qe6 Rf8 Ra8 Qd7 b8R+ Qb5 Rf1 h1R Ra6 h2 Rff3 Rhg1 Qf6 Rg5 Qd1 Nf1 Ng3 Ng8 Rde3 Ng6 Qe2 Nd2 Qf2 Bb1 Rd3 Nh4 Re7 Re6 Ne2 Rf5 Rd8 Re8 Rc6 Rd6 Re4 Rde6 Qe5 R6e7 Rh6 Re6 Rc8 Ne7 Qf6 Rh8 Rf8 Qe8 Rg8 Ree5 Qe6 Bf6 Rg7 Rf8 Rgh7 Nf1 Rh8 Bg5 Bh3 Bc1 Bg2 Nd2 Nb5 Ka4 Kc5 Bb2 Kb6 Kb4 Nc7 Bc3 c5+
nqB3K1/1bbr1B1Q/b2R4/3N1n2/3p1b2/Np2BB2/P3pBbk/2qQ1r2 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 c5 b4 cxd4 Nd2 axb4 exf5 gxf4 g5 h5 Rb1 Nc6 Rb3 Nb8 Rg3 Rh6 Rg2 Rh8 Rg4 hxg4 Kf2 Kf7 h4 e5 c4 b5 c5 d5 f6 Kg6 c6 Kh5 c7 f3 Kg3 f2 g6 e4 Kf4 d3 Ke5 d4 f7 b3 g7 b4 Qc2 e3 Ne2 g3 Nc4 Kg4 h5 d2 h6 d1Q h7 b2 Ng1 b1B Ne2 g2 Rh2 g1B Ba3 b3 Nd2 Ne7 Kf6 Nf5+ Be7 Na6 g8B Bh6 f8B Ra7 Kf7 Qc1 Nf4 Kg3 Nd5 e2 Nc4 Bb7 c8B Nc7 Bg2 f1B Qd1 Bf4 Bh6 Bd3 Bf3 Bg2 Na3 Na8 Bhg5 Qb6 Rh6 Bda6 Rd6 Bh2 Bh6 Kh3 Bh4 Qbc7+ Kf8 Qb8 Bf2 Bhg3 Bg5 Kh2 Kf7 Be5 Bge3 Bgf4 Re6 Bc7 Rd6 Bb6 Kf6 Bc7 Bf7 Rd8 Kg6 Rd7 h8Q+ Nh6 Kh7 Nf5 Qe5 Bb5 Qg7 Ra5 Nc4 B5a6 Na3 Rc5 Kh8 Rc2 Kg8 Rd2 Qc2 Rd1 Qg6 Rg1 Qd1 Rf1 Qh7+
1B2N3/1p5b/RQ3nb1/R1Q1K1Qp/b3bPN1/2Qq3r/4nr1p/1k2bQq1 b - - 0 1 legal: proof: h4 f5 b4 e5 d4 exd4 e4 d3 exf5 g5 b5 gxh4 b6 axb6 Be2 b5 Bg4 b4 Bf3 c6 Bd5 cxd5 Qf3 d4 Qe2+ Kf7 Qd1 Ke8 Kd2 Kf7 c4 Kf6 a4 Ke5 g4 Ke4 f6 d5 c5 b3 f7 b2 g5 h3 a5 h2 a6 Nc6 g6 Bf5 g7 Nf6 g8Q Bg6 Na3 b1B a7 Bd6 f8Q Bg3 f4 h6 Qf1 Be1+ Kd1 d2 Ke2 Qd7 Nf3 Qg4 Qgg7 Qg1 Ne5 Bh7 Qd6 Rag8 Qgf8 Rg2+ Qf2 h5 a8Q Qf1+ Kd1 Rhg8 Nf7 Kd3 Nh6 R8g3 Nc4 Rh3 Ba3 Kc3 Qe2 Bbg6 Ng4 Bf2+ Qe1 Kd3 Qa5 Bh4 Qb6 Qf2 Rf1 Qg1 Qh6 Kc3 Qde7 Bf2 Ke2 Kc2 Bb4 Bg3+ Kf3 d3 Q7e3 d4 Nd6 d1B+ Q3e2+ d2 Ra6 d3 Ne8 Kb2 Qg5 Bc2 Rf2 d1Q Qc3+ Kb1 Ba3+ Nb4 c6 d2 c7 Bcd3 Ke3 Bde4 Kd4 Qc2 c8Q d1B Q8c6 Qd3+ Ke5 Bb3 Qd6 Na2 Qf1+ Nc1 Ra2 Be1 Bb4 Rb2 R2a5 Ba4 Qdd4 Rf2 Bd6+ Ka2 Bb8 Ne2 Qe6+ Kb1 Qdc5 Rg2 Qec6 Rf2 Q6b6+
Nk2B2n/r1bP2pN/qN2Q1p1/1Bb1q3/Qb3N2/1r2Rp2/n4nb1/2N3K1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 e5 g4 b5 axb5 Na6 g5 Nb8 g6 hxg6 b4 f6 e4 Na6 Ra3 Nb8 Rf3 Nd7 f5 Nb8 Rf4 Nh6 Bb2 exf4 e5 Ng8 e6 Na6 Bd4 Nb8 Be5 fxe5 Kf2 c5 d4 a5 h4 a4 b6 f3 d5 c3 h5 c2 b7 c1N f6 c4 h6 e4 h7 a3 d6 c3 e7 Kd7 b5 c2 f7 a2 b6 a1Q Be2 e3+ Kf1 Qe8 Nc3 Nh6 Na2 Ra7 Nh3 Nd3 Nc1 Nc6 Nf4 Qa6 Kg1 Nf2 Bb5 e2 Qd4 e1B Qa4 Rg8 h8Q Bb4 Rh5 Bc5 Re5 Bb4 Re3 Bc5 Ncd3 c1B Qh7 Bd2 Nc1 Bdb4 Qh8 Qd8 Qh7 Qc7 e8B+ Kd8 b8N Bh3 b7 Bg2 Qh8 Ba5 Nd7 Nb4 b8N Kc8 Qh7 Na2 Nb6+ Kb7 d7 Qe5 Qh8 Bab4 Qh7 Bfd6 f8N Nf7 Qh3 Bc7 Nh7 Nh8 Qe6 Rf8 Na8 Rf5 Nc6 Rf8 Ne7 Kb8 Nc8 Rf6 Qc6 Rd6 Ncb6 Rd3 Qd5 Rb3 Qe6
2rB3r/1nk1q1Pr/p3p3/N1nQ3n/Nbq1n3/1N1N3Q/R1p2n2/1R2NK2 b - - 0 1 illegal: No possible last move, all moves rejected
6q1/n1Q2B1N/Qb1q1p2/2r4Q/2nn1r2/Np1Qp1qQ/1kr1P1R1/2Bn2K1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 g5 f4 gxf4 d4 b5 g5 c5 Ra3 cxd4 Rg3 Bb7 Rg4 hxg4 Bg2 Bc6 Bh3 axb4 Bf1 b3 Kd2 b4 Ke1 Bb5 axb5 Qb6 Kd2 Qc7 Ke1 Qd8 Kf2 e5 c4 Ke7 h4 Ke6 b6 d5 b7 e4 c5 Ke5 c6 f3 h5 b2 h6 d3 c7 Kd4 c8Q g3+ Ke1 e3 g6 f6 h7 b3 g7 g2 Rh6 Nc6 b8Q Na7 Rh1 Nh6 g8Q Bc5 Qf5 Bb6 Qh2 Rc8 Qf7 Rc5 Qb7 Qg8 Nc3 b1N Qc2 Na3 Qfh5 Nf5 Nb1 Nc4 Nh3 g1Q Bd2 Q1g6 Bg2 f2+ Kf1 Qg3 Be1 d2 Na3 d1Q Ng5 Qd3 Rg1 Qd2 Qe4+ Kc3 Qa6 d4 Qd3+ Kb2 Bd5 Qb4 Bf7 Qd2 Qe4 d3 Rg2 Nd4 Q2h3 Qb4 Qeb7 d2 Qc7 d1N Bd2 Re5 Qg6 Qd6 Qd3 Rc5 Qh5 Qa8 Qh3 Rc8 h8Q Qb8 Nh7 Qg8 Rg5 Qg3 Qh5 Qd6 Kg2 f1R Rg4 Rf4 Kg1 Qa8 Rg2 Qf3 Qg7 Qg3 Qgg4 Ne5 Qgh4 Rc2 Qh3 Nc4 Qcb7 Rc6 Qc7 Rc5 Bc1+
2Q1q1Q1/bNKp2n1/q1bN1p2/N1prqP2/N2B4/3b1n1q/n5R1/3kRN2 b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 e5 g5 exd4 c3 bxc3 g6 b5 Qc2 h5 Qb3 f6 Bh3 Ke7 Bg4 hxg4 Qc2 Ra6 Qd1 Re6 Bf4 Ke8 Be3 Re7 Bc1 Rf7 gxf7+ Ke7 f4 Kd6 Kf2 Kc5 Kg3 Kb4 h4 g5 a4 c2 e4 Kb3 e5 b4 e6 d3 a5 d2 a6 Bc5 f8Q Nc6 a7 Bb7 a8N Qe8 h5 Nd4 h6 Bc6 e7 Nf3 h7 Nh6 Nc3 Nf5+ Kg2 g3 Ra2 g4 Nb6 Ng7 Nc4 Ba7 Na4 Rg8 Qf1 d1Q h8N Qd5 Nf7 Qe5 Bb2 c1N Nd8 Kc2 Ne2 b3 Bd4+ b2 Qg1 Rh8 Qg8 Rh5 Nb7 Rg5 Nca5 Rf5 Ra1 b1B Rh2 Na2 Qe3 Kd1 Qc3 Qd6 Qc5 Rd5 f5 Qe5 Qc4 Kd2 Qa6 Bd3 Re1 Kc2 Nd8 Kd2 Qc8 Kc2 Ndb7 Kd2 Kf1 g2+ Kf2 Kc2 Ng3 Kd2 Re4 Kd1 Nf1 g3+ Ke3 g1Q+ Rf2 Qh2 Rg2 Qeh5 e8N Q2h3 Ned6 Qhe8 Rf2 g2 Rc2 Q5e6 Kf4 g1Q Rg2 Qf2 Re5 Qc2 Ree2 Qc4 Re5 Be2 Ke4 Qa6 Rg1 Bcb5 Rg2 c5 Ndc4 Q6e7 Re6 Rd6 Re5 Rb6 Kd5 Bd3 Ree2 Qe3 Bb2 Re6 Bd4 Qf4 Re4 Re7 Re5 Bc6+ Kd6 Qe3 Re4 Re5 Kc7 Rd5 Ncd6 Qf4 Re3 Qfe5 Re1+
4B2Q/4pK2/7B/qBNn1nkp/1B4P1/1B1pbR2/rrn4r/R1n2Qqr b - - 0 1 legal: proof: f4 g5 g4 f5 d4 c5 e4 cxd4 Nc3 b6 Nce2 fxe4 f5 Ba6 Nf4 gxf4 b4 Be2 g5 a5 h3 Bg4 hxg4 axb4 Kd2 Kf7 a4 d5 c4 b3 g6+ Kf6 a5 b5 c5 b4 a6 d3 g7 d4 a7 e3+ Ke1 f3 c6 e2 Kf2 e1N Kg3 f2 Kf4 b2 c7 b1R c8Q d2 Ra5 b3 Be2 f1N Ba3 b2 Rh3 Nc6 Bb4 Ng3 Bb5 d3 Ne2 Nc2 Ra1 Nh6 g8B Qa5 Qf1 d1Q Nc3 Ne2+ Ke4 Rc1 Kd5 b1R Rf3 Kg5 Ke6 Rb2 f6 Nf5 f7 Bh6 f8B Rcb1 Na4 Nc1 Kf7 Qe1 Bc3 N6b4 Nc5 Nd5 Bb4 Qf2 Qe8 Qg1 Bg7 Rb8 a8B Ra2 Qf8 Rb6 Bb7 Rbb2 Be8 Re6 Bbc6 Re2 Ba4 Rh2 Beb5 Kh4 Qa8 Be3 Bb3 h6 Bh7 Kg5 Bg6 h5 Qb8 Rc8 Qa8 Rc6 Qh8 Re6 Kg8 Re4 Bge8 Rf4 Kf7 Rh1 Rh3 Rf2 Rf3 Rfh2 Bh6+
3R1br1/pn1N4/bQR1k2p/1R2b1BK/nqq2pRP/8/bN2Q3/3qqR2 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 f5 b5 e3 bxa4 f6 g4 Bb5 exf6 Bd3 f5 Be2 f4 Bf3 gxf3 Kf2 Ke7 b4 d5 c4 f5 g4 d3 h4 d4 c5 a3 c6 d2 g5 a2 e4 h6 c7 d3 g6 Ba6 c8R Nd7 e5 Nc5 b5 Qd6 g7 Ke6 b6 Rh7 b7 Ne7 b8Q Nb7 g8R Qb4 Qe2 d1B Nc3 d2 Rc5 Nc8 Na4 Rc7 Nb2 Nb6 Rg4 Na4 Rb1 a1B Qd8 Rc6 Qb6 Ke7 e6 Bb3 Qbb5 d1Q Qb6 Kf6 e7 Ba2 e8R Rc8 Rd8 Rb8 Nc4 Be5 Rb3 Ke6 Nb2 Qa3 Rbb5 Qb4 Nh3 Rc8 Rf1 Qde1+ Kg1 f2+ Kg2 Qd1 Ng1 f3+ Kh3 Ra8 Bg5 f4 Rg2 Rc8 Kg4 Rb8 Kh5 Rc8 Re1 f1Q Rg4 f2 Nf3 Qg1 Rf1 Qg3 Rh1 f1Q Rg1 Qfe1 Rf1 Qh2 Nd2 Qg1 Ne4 Qgd4 Nf6 Qdc4 Nd7 Rc7 Nf6 Rg7 Nd7 Rg8 Rxc6+
2r4r/1n1pn2p/R1BBnRq1/3Qn3/1R3Ppn/r5kR/4Kb1p/RN2Q3 b - - 0 1 illegal: No possible last move
n2b1B2/p1Q2p1Q/1Nb2pB1/2KB4/kn1nPB2/n3rRb1/1qn1p3/5R1B b - - 0 1 illegal: No proof kernel
1Kn1q3/1pn1NpBB/2p1B3/1P2Q2Q/1R1R4/1bn1r1p1/r7/1BnrrB1k b - - 0 1 illegal: No proof kernel
bb2rN1r/k2Nbq1q/6Nb/1p1bn1nQ/1P6/N1K1R1B1/1QnrBb2/5N2 b - - 0 1 legal: proof: b4 c5 d4 cxd4 e4 h5 g4 hxg4 a3 a5 Ra2 f5 Rb2 a4 Rb3 axb3 a4 fxe4 Kd2 d5 h4 Kd7 f4 Kc7 c4 Kb6 h5 e5 a5+ Ka7 h6 b5 a6 g5 h7 d3 f5 d4 f6 b2 f7 e3+ Ke1 g3 c5 d2+ Ke2 e4 c6 g2 c7 g4 Nh3 g1B Rh2 g3 Bg2 d3+ Kf1 Nf6 Na3 b1Q Qh5 d1B Ke1 e2 Kd2 e1N Qh4 e3+ Kc3 d2 Qh5 e2 Nc2 Qd5 Ba3 Nc6 Ng5 Be7 f8N Be6 c8Q Be3 Nf3 Ne5 Rh1 Bh6 Bf1 g2 Nh2 g1B Bb2 Bf2 Na3 Nc2 Qd8 e1B Be2 Qb7 Nf1 Bd5 Rh3 Rc8+ Qc7 Re8 Re3 Bg3 Qc4 Bef2 Qa2 Qd7 Bc1 Ba8 Qb2 Ne4+ Kb3 Ng5 Kc3 Rg8 h8N Bd5 Bg4 B1f3 Nhg6 d1R Bd2 Bg2 Be1 Rd2 Bd1 Rh8 Be2 Kb6 a7 Bh2 a8N+ Ka7 Qh3 Qf5 Nb6 Qf7 Nbd7 Ba8 Qg4 Bgd5 Qa1 Nd3 Qf3 Bb8 Qb2 Ne5 Qf5 Bg1 Bg3 Bf2 Nh2 Qh1 Nf1 Qe4 Qg4 Qef5 Qh3 Qh7 Qh2 Qff7 Qh5
2Q3BR/1p2q3/1k2b1b1/2b1NrBr/1P6/nB3nKB/r1B1Q3/nRqn1rn1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 d4 e5 d5 exf4 d6 a4 Nd2 cxd6 Bb2 d5 Nb3 axb3 Bc1 d4 Kf2 d5 g4 Kd7 a4 Kc7 e4 h5 c4 f5 e5 b2 g5 b1N e6 h3 c5 f3 c6 h2 g6 h4 e7 h3 e8B d3 g7 d2 a5 f4 a6 d4 a7 d3 Qb3 d1Q Qc3 d2 Ba3 Qe7 Qc2 Nh6 g8B Be6 Qa4 Na6 Bb2 Nf7 Be2 Nc5 Bc4 Qc1 Bg7 d1N+ Ke1 f2+ Ke2 f1R Bh7 Na3 Bh6 Kb6 c7 Ne5 c8B Nb3 Bd5 Nf3 Rb1 Na1 Bf5 Rh7 Bg5 Rh5 Bb3 Rf2+ Kd3 Ra2 Bcd7 Rc8 Ke4 Rc5 a8Q Ra5 Bfg6 Rf5 Ne2 Ng1 Qc8 f3 Nd4 f2 Bef7 f1N Nc6 Nd2+ Kd4 Bc4 Ne5 Ndf3+ Ke4 Be6 Qaa8 Qd8 Qc2 Bc5 Bg8 Qe7 Qc8 Ne2 Rf1 Neg1 Qe2 h1B Rf2 h2 Rg2 Rc2 Rg3 Bg2 Rh3 h1R Rh4 Ra2 B6h7 Rf7 Bf5 Bf1 Bh3 Rf5 Bda4 Rh2 Bc2 Rf2 Bab3 Bg2 Bf4 Rf1 Be3 Rfg5 Kf4 Rf5+ Kg3 Ng5 Qf8 Be4 Qc8 N5f3 Bf4 Rf6 Bg5 Bg6 Rd4 Rf5 Rd7 Qf8 Rh7 Qe7 Rh8
2B3Kb/2BBbpBn/5qBQ/3bq1rN/1nr3RN/Q3nP2/1q3k2/2b2nn1 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 g5 c5 g6 c4 Ra3 hxg6 Kd2 g5 Ke1 g4 Rd3 cxd3 Kd2 Ke7 e4 Kf6 c4 Ke5 h4 Kf4 c5 b5 h5 g5 h6 d5 c6 g3 f3 b3 c7 g4 e5 b2 a5 g2 e6 Kg3 a6 b4 e7 b3 e8Q Qf6 h7 Be6 c8B Be7 a7 Na6 Qc6 Nb4 Nc3 b1N+ Ke1 b2 Qe8 d2+ Ke2 d3+ Ke3 d4+ Ke4 Kf2 Qc2 g3 Nge2 d1N Bb7 g1B Na2 g2 Nac3 d2 Rh3 d3 Bc8 Ne3 Qea4 d1Q Rg3 d2 Nd4 Qe1 Bd3 Nf1+ Nce2 d1N Bf4 Nde3 Bc7 Bc4 Bd7 Rc8 Nf5 Bd5+ Kf4 Bh2 a8B g1B Qd2 Nc3 Bb7 b1Q Qa3 Qb2 Bb1 Qe6 Qc1 Nf6 Kg5 Rhg8+ Kh6 Rg5 Nf4 Ne2 h8B Nh7+ Bf6 Qec3 Nh5 Qee5 Rg4 Bf4 Nh4 Bgh2 Bh8 Ng1 Bg7 Qf6+ Bg6 Qce5 Ba5 Rc4 Bbc8 Qed6 Bd8 Be5 Bc7 Bhf4 Qa8 Bd4 Qa3 Qfe5 Bf6 Bc3 Kg7 Qb6 Kg8 Qa6 Bh8 Qaf6 Bg7 Nd1 Bh8 Qee6 Qaa1 Re5 Ba5 Qg5 Bg7 Rf5 Bh6 Bh8 Bb5 Qgf6 Bg7 Qee5 Qa3 Bh6 Bbd7 Be3 Qb1 Bd2 Qe4 Bc1 Qf4 Nde3 Qh6 Rg5 Bc7
2n2r2/QnR4R/1Rbb2pn/qk2qQrN/1B1b1Rpq/1b1K4/6PR/2rN4 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 h5 Bd3 fxe6 Bf1 e5 Be2 e4 Bg4 hxg4 Kd2 b5 a4 e5 f4 d5 h4 Kd7 c4 Kc6 f5 d3 f6 d4 f7 g6 c5 b3 h5 b4 h6 e3+ Ke1 d2+ Ke2 e4 h7 d3+ Kf1 e2+ Kf2 e1N Ke3 b2 a5 b3 a6 Nd7 a7 Qh4 Na3 b1R Nh3 b2 Nf2 Bb7 Rh2 Bd6 f8Q Nb6 Rh3 Nc8 Qf7 Nh6 Qdf3 d1B Bd2 Bb3 Nh1 Rc1 Bb4 b1Q Ng3 d2 Nc4 d1Q Rh2 Rf8 h8R Qb2 Ra4 Qe5 Nb2 Qdd5 Rh7 Kb5 c6 Nd3 c7 Nc5 Nd1 Bc6 Nh5 Nb7 Q3f5 Qc5+ Kd2 e3+ Kd3 e2 Qg7 Rb8 a8R e1B R8a6 Bc3 Qe7 Bd4 Qef7 Ne7 c8R Qa7 Rc7 Nc8 Ra2 Qac5 Rf2 Qb6 Q7d7 Qa5 Rf4 Ra8 Qe4 Rf5 Qe3 Rg5 Qf5 Nb6 Qg1 Rf8 Qe3 Nc8 Qg1 Bc3 Qa7 Bd4 Rb6+
K1b4b/Np3Q1n/1P1rn3/b3pBr1/1qQb2nB/Q3Q2R/6Nr/1rQr1k2 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 hxg4 Ra3 a6 Rb3 a5 Rb4 axb4 Kd2 Kf7 h4 Kg6 c4 Kh5 f4 g5 c5 e5 a5 d5 f5 e3+ Kd3 e2 b6 e1B f6 b3 f7 b2 c6 Nd7 c7 Qe7 a6 Ba5 a7 Bg7 f8Q Nc5+ Ke2 d3+ Ke3 d2 Bb5 Nf6 Bd3 Nh7 Nh3 Ne6 Na3 b1R Bf5 d4+ Ke4 d3 Kd5 Qb4 Nb5 Rb8 Qb3 d1R a8Q d2 Na7 g3 Qc4 g4 Qe7 g2 Qf7+ Kh6 h5 g1R Nf4 Kg5 h6 g3 Rh3 g2 Bb2 Bf6 Bd4 Bg7 Bc5 Rd8+ Bd6 Bh8 Qc1 Rh1 Qc4 g1B Ng2 Rg8 Bf8 Rg6 Be7+ Rf6 Qc1 Bd4 Bd8 Rh2 Qc4 Bd7 Be7 Rg8 c8Q Rg6 Q8c5 Bc8 Kd6 Nd8+ Kc7 Ne6+ Kb8 Rg7 Ne3 Kf4 Bd8 Rg3 Ng2+ Kf3 Be7 Rg6 Bh4 Kf2 Qc1 Kf1 Qcc7 Nhf8 h7 R3g5 Q7c6 Nd8 Qa4 Rd6 Qaa3 Nde6 Qe3 Bf6 h8Q Nh7 Qhg8 Bh8 Qc5 Rdc1 Qc6 d1N Qcc7 Nf2 Qc6 Rd1 Qcc1 Bd7 Qgc8 Ng4 Q8c2 Bc5 Qa4 Bc8 Qab3 Rd3 Qbc4 Bd4 Qe7 Bc3 Nc6 Bb2 Qf7 Ba1 Qa2 Rd6 Qa7 Bd4 Ka8 Nf4 Qa6+ Qb5 Qaa3 Qc4 Qb5 Ne6 Qbb3 Qa4 Na7 Qb4 Qbc4+
nk3Nn1/1b2qnR1/6rR/Rbp1n3/Qb2p3/2Pr4/QB1bRrBR/4b2K b - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nc3 fxg4 Nce2 axb6 Rb1 b5 Ng3 hxg3 Ra1 b4 h4 Kd7 f4 b5 a4 e5 d4 g5 a5 b3 d5 e3 f5 b2 a6 b1R h5 b4 h6 b3 f6 g2 f7 e4 a7 b2 d6 g3 h7 g4 c3 e2 Ra4 Na6 Rh2 Bb7 Ra5 Kc8 Rh6 Qe7 Nh3 g1N Nf4 g2 Kf2 e1B+ Ke3 g3 Qe2 Nf3 Ra1 g1N Ra2 g2 Rg6 Ne5 Ra5 Nh3 Ne6 Ng5 Rg7 g1B+ Kf4 c6 Bg2 Nc7 Qc4 Bc5 Qa2 Bb4 Ke3 Rb8 a8Q c5 Qa6 Ra8 d7+ Kb8 Ke2 Ra1 Kf1 b1B Kg1 Bd3 Kh1 Bb5 Bb2 Rd1 Qa4 Rd3 d8R+ Bc8 Rd5 Bb7 Rd6 Ra7 Qa2 Na8 Qc6 Ra6 Qd7 Bc4 Qda4 Bb5 Rb6 Rd2 Rd6 Rf2 Rd2 Rd6 Re2 Rd3 Nd8 Qe8 Ne6 Be7 f8R Ngf7 Rg3 Qd8 Rg7 Bg5 Re8 Bh6 Nf8 Bhd2 Re6 Qe7 Reg6 Nf6 Rh6 Rg8 Rg4 Rg7 h8R Ng8 Rh2 Rg6 R8h6 Ra6 Rg7 Re6 Q4a3 Rg6 Qa4
2nQ4/1Qp2Rbk/Q1Qq2qr/bb2Q2r/p4b1B/2P5/N1n1B2R/1Kbb3q b - - 0 1 legal: proof: f4 b5 g4 g5 a4 bxa4 e4 gxf4 Nc3 d5 g5 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 h4 e5 b4 f5 d4 Kf7 Kd2 Kg7 b5 a5 h5 a3 b6 g3 h6+ Kh7 d5 e3+ Kc3 g2 b7 e4 d6 f3 d7 f2 Rb1 a4 Qd2 e2 Rb2 e1B Rb3 e3 Ba6 f1B Nf3 g1Q Nh2 e2 Bd3 a2 Kb2 a1B+ Kb1 Ra5 Qc3 Bd6 Nf3 Bf4 Qc6 Ne7 Nd2 Bg7 Ne4 Bed2 Rh2 e1B Nc3 Na6 b8Q Nb4 Be2 Rc5 Ba3 Bc1 Na2 Ba6 Qa7 Nc8 Qab7 Bb5 Rf3 Qf8 d8Q Qd6 Bb2 Bh3 Bd4 Bg4 Bf2 Bec3 Bh4 B3d2 Bd3 Bh5 Rff2 Bd1 Be2 Qg4 Rf3 Qh5 Qf6 Qg6 Rf1 Bg3 Qca6 f4 Qc3 Rf5 Qcc6 f3 Rff2 Bgf4 c3 Bde3 Rf1 Bb6 Rff2 Ba5 Rf1 Nc2 Rff2 Qe8 g6+ Kg8 Rf1 Rh5 Rff2 Bd4 g7 Qeg6 Rf1 f2 h7+ Kf7 Rg1 f1Q Rg5 Kf6 g8Q Qh1 Qd8+ Kg7 Rf5 Kh6 Rf7 Bg7 Qe4 Re8 Qe5 Re6 h8Q+ Qh7 Qhg8 Qg6 Qge8 Kh7 Qbc6 Qgg2 Qf3 Reh6 Qfb7 Qgg6 Qec6
1Q2QQK1/3B1rb1/bpb1q2q/1P2nr2/5N1n/2p2R2/1kbNR2q/Qqr2Q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 f5 dxc4 b5 e6 Bb2 exf5 Bc3 f4 Bb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 a4 h5 e4 f3 g4 c3 g5 c2 d3 c1Q g6 b6 g7 f2 a5 f4 a6 b3 a7 Kb4 d4 c5 d5 h3 d6 h2 d7 b2 Ke6 c4 Kf7 c3 e5 h4 e6 h3 e7 f3 e8Q Nc6 Ne2 Qe7+ Kg6 Rh7 d8Q Nh6 g8Q Nf5 Ng3 Bg7 Qef8 Ba6 Be2 f1R Q8d2 f2 Qf6 Qe6 Ra3 Rf8 a8Q Rg1 Qh8 f1B Bg4 Bd3 Ne2 Bc2 Ra2 Kb3 Qe8 Rf7 Qf4 Rh5 Qfh6 Ne5+ Kh7 Nh4+ Kg8 Rf5 Nf4 Re1 Rf1 h1B Qb8 Bc6 Rf3 h2 Qh5 h1Q Nd2+ Kb4 Qhg6 b1Q Bh3 Qh2 Qg2 Rg1 Qgf1 Rh1 Rb2+ Ka3 Qfd8 Qba2 Qe8 Qcb1 Qh6 Qad5 Qf6 Qdd6 Qfe7 Qh6 Q7f8 Qe7 Rb4 Qee6 Re4+ Kb2 Re2 B2e4 Qa4 Bc2 Qg2 Rc1 Qf1 Qea2 Bg4 R5f6 Bd7 Qe6 Qa5 Rf5 Qa1+
n3r1N1/Nnpk2b1/r4B1Q/2QK3n/1q2p1NN/2b1P2r/1pNR1Rb1/3nn3 b - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Qa4 g3 Bh3 g2 Bg4 hxg4 Qc2 dxc6 Qb3 c5 Qd1 c4 h4 e5 f4 g5 Kf2 b5 Ke3 c3 Ke4 g3 d4 c2 a4 b3 a5 b2 a6 g4 f5 b4 e3 b3 d5 Nd7 h5 Qh4 f6 Nb6 d6 Bb7+ Qd5 Bg7 f7+ Kd7 f8Q Re8 a7 Na8 Nh3 g1R h6 g2 Nf2 g3+ Ng4 Rf1 h7 g1B Ra6 g2 Rh2 Bf2 Ra2 g1N Na3 b1N Bb2 c1N Nc2 Be1 Rf2 Nd3 Qf4 Bd2 Qh6 Bc3 Rd2 Nf3 Qc6+ Kd8 d7 Nfe1 Kd5 Nc5 Rf2 Ke7 d8N Rh1 Nf7 Rh3 Nd6 Kd8 Nf5 Re6 Ne7 Nf6+ Kc4 Rd6 Ng8 Nh5 Qb6 Rc6 Kd5 Kd7 Ba1 Qg5 Qb4 Qf4 Qa5 Qb4 Qb6 Ne4 Qc5 Nd6 Bb2 e4 Ba1 Bc8 Bb2 Nb7 Ba1 Bd2 Bf6 Ra6 Nd4 Rh4 Nh2 Ke8 Ne7 Bh3 Ng4 Bg2 Rc2 Rg8 h8N b2 Nhg6 Rh3 Nh4 Rf8 Ng8 Nb6+ Ke5 Nc3 a8N Nd1 Ke6 Nc4+ Kd5 Bc3 Rcd2 Kd7 Nc2 Rb8 Bd4 Re8 Nb6+ Kd8 Nc8 Nb6+ Kc6 Na8+ Kd5 Kd7 Na7 Rb6 Be5 Ra6 Bf6
1B2R1qB/1p3p1k/1q1rN3/pP3QbK/Q3B2n/1B5B/qnbq1q2/2r2Nr1 b - - 0 1 illegal: No possible last move
qb2nn1R/2R2Q2/2N2Rr1/b1qR2pp/kB1b3P/1n4pR/K3b2Q/1Br3r1 b - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 d5 f5 Nd2 fxg4 Ndf3 e5 Nd4 exd4 Kd2 Kd7 Kc2 b5 Kb1 h5 e4 c5 h4 g5 f4 d3 a4 b3 e5 c3 a5 c4 f5 b2 d6 Kc6 e6 d2 e7 b4 e8R Kb5 d7 c2+ Ka2 b1R f6 g3 f7 Bd6 f8Q Ra6 Nh3 Ka4 Re2 c3 Qe7 Nf6 Bg2 Ne8 Qg1 d1Q Bd2 c1B Qc5 c2 Qe4 Qg1 Qa7 Qc5 Nf2 Bb2 Ng4 c1B Rf2 Bd4 Ne5 Rh6 Qh7 Rc6 a6 Rg6 Rf6 Bcb2 Rh2 Bbc3 Be4 Rg1 Qf7 Rc7 Rc1 b3+ Kb1 b2 Ka2 b1N Nc6 Bb7 Rh3 Ba5 Bb4 Nd2 Bb1 Nb3 Rc3 Qc8 d8R Nd7 Qa8 Qb8 a7 Nf8 Rc4 Bf4 Rd5 Ba6 Qb7 Bd6 a8R Qba7 Rc1 Be2 Qc8 Bf4 Qf5 Bd6 Qf2 Qa6 Rd8 Qa8 Qh2 Rc8 Rc2 Bb8 Rc4 Rc7 Rc8 Re7 Rc7 Re3 Rc2 Rc3 Rd2 Rcc1 Rd8 Bc3 R2d5 Bd4 Bf5 Ne6 Rcd7 Nd6 Rh8 Nf8 Bb1 Ne8 Rc7
b1k2qN1/6R1/4p1br/R3P2r/1p2R3/b1rp1QB1/qq2RKn1/Rn1q1BQ1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Nd2 h4 Ne4 fxg6 Ba3 g5 Ng3 hxg3 Bc1 g4 h4 g5 a4 b5 c4 d5 f4 Kd7 e4 b3 e5 g2 c5 e6 f5 g3 a5 d3 a6 d4 a7 b2 h5 b1B h6 d2+ Ke2 g4 h7 Na6 f6 Nh6 f7 Nc7 Qc2 Nd5 Nf3 g1Q Qd1 g2 Ra2 g3 Rc2 Qf2+ Kd3 g1R Nh4 g2 Ke4 Bb7 c6+ Kc8 c7 Nf5 Qg4 d1Q Bf4 Nfe3 Ng6 Ba3 f8Q b4 Bg3 Qfe2 Qf2 Qf8 Qgf3 Rb8 Rh4 Rh1 a8R g1Q Ra5 Qg2 Qg1 Ba8 Rg4 Rh6 Ne7+ Kb7 Ng8 Kc8 Rf4 Rb6 Rf7 Rc6 Re7 Rc3 Rg7 Ba2 Rc1 Qb2 Ra1 d3 Kd4 Bc4 Ke4 Bb5 Kd4 Be8 Ke4 Kb7 c8R+ Bf7 Rc6 Qgc2 Kd4 Ng2 Rc4 Qa2 Ke4 Qcb2 Rd4 Rc5 Rc4 Kc8 Rc2 Rc6 Re2 Nc3+ Kd4 Nb1+ Ke4 Nh4 Ke3 Bg6 Kf2 Rc3 Nf6 Rg8 h8R Ng2 Rhh7 Rh8 Ng8 Be8 Rg4 Bg6 Rg7 Rh5 Rh4 R8h6 Re4
3k3B/4n1R1/rnp1b1R1/3R1R1n/q1pN1n2/4R2b/QQPb2np/K2b2rB b - - 0 1 legal: proof: f4 a5 h4 e5 b4 axb4 h5 exf4 h6 d5 Na3 gxh6 Nf3 h5 Nc4 dxc4 Ng1 h4 g4 Qd7 a4 b5 d4 f5 Kd2 h5 e4 b3 Kc3 b2 e5 b1N+ Kb2 h3 g5 h4 e6 f3 g6 f2 g7 f4 d5 f3 d6 Nc3 e7 Ne2 Bg2 f1B a5 f2 a6 b4 a7 b3 Ra6 Nf6 g8R Nc6 Ka1 b2+ Ka2 b1N Ra3 Nbc3+ Kb2 Ncd5 Bg5 Nb6 Ra5 Nf4 Qd5 Rh7 Qb5 Rg7 Rh2 N6h5 Bf3 Be2 Ka1 f1N Ra4 Bd1 Rg2 h2 Qb2 h1B Ra5 h3 Ne2 h2 Nd4 Ne3 Bf6 Rg5 Rg1 Bg2 Rf5 Bh3 Bh8 Rg4 Rg7 Rg5 Re1 Rg1 Bh1 Neg2 Re6 Nb4 Qc1 Nb4d5 Qb2 Qb5 Rh6 c6 Rhg6 Kd7 e8R+ Be7 Rgg8 Bh4 Re3 Be1 R8g7+ Ne7 Qb4 Bd2 Qb2 Kd8 d7 Kc7 d8R Be6 Rdd5 Qb4 Rc5 Kd8 Rce5 Rb8 a8Q Qb3 Qa4 Ra8 Rb5 Ra6 Qaa2 Qa4 Rbd5+
1rn5/2NKNn2/R2bRp1p/3p3b/Qq1Pr2Q/4qNNN/1bB2k2/r5rb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 f5 c5 b5 e6 Ba3 exf5 Bb4 cxb4 Rh2 f4 Rh3 Ke7 Rh1 Ke8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 Kg3 e4 d5 c4 a5 b6 b3 c5 a3 b7 a2 c6 h6 c7 h3 Qg4+ Kf2 g3 a4 Bd3 h2 Qh4 a3 Bc2 f3 Nd2 Bg4 c8N b2 Nd6 b1Q Nf5 f6+ Ke6 Bd6 e5 Nd7 b8N Bh5 Na6 Rb8 Nc7 Qb4 Re1 a1R g4+ Kg2 g5 a2 g6 f2 g7 f1R Re3 Ne7 g8N Nc8 Nh3 Qe8+ Nge7 Rg1 Nf3 Rg8 Re1 Rg4 Ng3 Re4 Re3 Rac1 Ra3 a1B Ra5 Bb2 Ra6 Rge1 Rf1 Ra1 Rh1 Reb1 Re1 h1B Re3 Rg1 Re1 Ndb6 Re3 Nc4 Re1 Qg6 Kd7 Qg5 e6 Qf4 Nc6 Qg5 e7 Qe3 e8Q Ne5+ Kd8 Ra2 Ne7 Ra1 Qa4 Nf7+ Kd7 Qg5 Re3 Qf4 Rc3 Qg5 Rcc6 Qe3 Nhg5 Kf2 Rcb6 Be5 Re6 Bd6 Nh3+
q4Rrn/N1rB1q2/Nrp4R/1N1Qn1p1/1N1p1bp1/5nP1/1k4b1/Q1NK3b b - - 0 1 illegal: No proof kernel
B1qBB1r1/bp3r2/3Kn3/2N4B/6p1/Bp2bp1r/b1Q2Pnk/nNQ1Rb2 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 g5 c5 g6 c4 Ra3 hxg6 Kd2 g5 Ke1 g4 Rd3 cxd3 Kd2 g3 e4 Ke7 c4 Kf6 h4 g5 c5 d5 a5 g2 c6 g4 h5 Kg5 h6 f5 h7 f4 c7 f3 a6 Be6 c8B Ne7 a7 Nbc6 e5 Na5 Qe1 Nec6 Ba3 Nb3+ Kd1 d2 Kc2 d1N Kd3 Na1 Qc3 Bc5 Qd2+ Ne3 Ne2 g1B Bh3 Kh4 Qe1 Bh2 Nbc3 Bf4 Ng3 Qf8 Bd7 Nd8 Nb1 Rb8 a8B Ba7 Kd2 d3 Qc1 d4 Ne4 Ba2 e6 b3 Re1 Qe8 Bf1 Ng2+ Re3 Kh3 e7 Qf8 e8Q Kh2 Qg6 Ne6 Qf5 Qd8 Qfc5 Qc7 Q5c2 Rbg8 Be2 Qc8 Be8 Rg6 Bf7 Rh6 Bg6 Rg8 h8B Rh3 Bh5 Bh6 Bf6 Bg5 Qe1 Bh6 Bd8 Bg5 Kc1 d2+ Kb2 d1B Bb5 d3 Bbe8 Be2 Qec1 Bf1 Re2 d2 Re1 Nc7 Kc3 d1R Kb4 Rd7 Qc4 Bge3 Q4c2 Rd3 Kc4 Ne6+ Nc5 Rd2+ Qd3 Rd1 Kd5 Rd2 Ke5 Rd1 Qdc4 Rd7 Q4c2 Rf7 Kd6
1QKR2N1/3pb1bn/2b4Q/1qrnp1Nb/7R/2RR3r/2RP1ppB/2r2k1n b - - 0 1 illegal: No proof kernel
1B2K3/q1b1QRpB/1QBBb1Pq/q1N1p3/3qB2q/3Rk3/r4pp1/1n2r2n b - - 0 1 illegal: No proof kernel
Qr2B1qn/2p4B/3R3r/p1q3p1/BB1B1N2/1b3kPp/RbbK2bq/6Qn b - - 0 1 illegal: No proof kernel
4qBQq/r4N1n/1R1K4/Q1pbn3/1Brq4/p1Bp3b/B1Pk2Bp/b1q2R2 b - - 0 1 illegal: No possible last move
4r1bK/3Q1Rp1/3Bb1Q1/np3R1n/bb3N1R/1p1NqpPR/2R1rk1n/n7 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Kd2 h3 Bg2 hxg2 Ke1 exf6 Bg5 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 h4 Ke4 c4 b5 a4 d3 h5 d2 h6 Ke3 Kh5 f5 Kg6 d5 a5 d4 c5 f3 a6 f2 a7 f1B c6 d3 c7 f4 h7 Qe7 Na3 Be6 c8R Nc6 Nc2+ Kf2 e4 Qc5 e5 Na5 Rh3 Nf6 Ne1 Qe3 Rc2 Re8 a8R Nh5 Ne2 g1N Ba3 Nf3 Ra7 Nh2 Rf7 f3 Nf4 Rg8 h8R Be2 Qb1 d1B Kh7 d2 Rf5 B2c4 Raa2 Bb3 Rc7 Bbd5 Rcf7 Ba4 Rc2 b3 Bd6 Be7 Ne2 d1N Nd3+ Kf1 Nef4 Bc4 Bc7 Bb4 Bd6 Kg1 Qb2 Re7 Qd4 Rge8 Qa7 Qd4 Qd7 Ne3 Rc3 Nc2 Rh4 Bed5 e6 Na1 Rc2 Qe3 Rh3 Rc8 Rh4 Ree8 e7 Be6 Rg8 Rc5 Kh8 Re5 Rh3 Qd2 Rgf8 Re2 Rg8 Qe3 Rgf8 Nf6 Rfh5 Kf1 R5h4 Nh5 Rf5 Bg8 R8f6 Bce6 Rf7 Rd8 e8Q Kg1 Qee7 Re8 Qg5 Kf1 Qg6 Kg1 Nc1 Kf2 Ncd3+
2B1K1n1/B7/1rpppRB1/2P3RQ/b1bbkp1q/2Q1p1rN/q1q2B2/2B1n3 b - - 0 1 illegal: No proof kernel
3N4/2pN1R1R/pN2n2K/1r1r1p2/b2N1Qp1/P1kp2b1/nNB1pqb1/2q3Q1 b - - 0 1 illegal: No proof kernel
2B1QQ1q/n4p2/BK1B1r2/2pp2b1/ppr2n2/rPBBR3/Nk1Nbp2/7r b - - 0 1 illegal: No possible last move
1B2bb1b/3p1Qr1/1r5k/2RbP3/1q1pN3/1Qn2K1Q/8/nQqB1RR1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 b4 a5 e3 a4 Nd2 a3 gxh5 a2 e4 Rh6 Nc4 Rh7 Ne3 fxe3 Rxa2 Rh6 Ra1 Rh7 c4 Rh8 c5 Ne7 c6 Ng8 c7 Ba6 c8Q Bxc8 Ke2 g5 h4 f5 h6 Kf7 h5 g4 b6 g3 b7 g2 b5 f4 b6 f3+ Ke1 f2+ Ke2 Ra6 h7 Kg7 e5 Kh6 Kf3 Ne7 Bd3 f1B Ba3 e2 Qb3 e1B Bd6 Rg8 Nh3 g1Q Ng5 Bh4 Be2 Nd5 Bd1 Nc3 Ne4 Bd3 Qf7 Nc6 b8Q Bf6 b7 Na5 Bc7 Qe1 Rf1 Nb3 Rc1 Rg7 h8R+ Rh7 Bd6 Qa5 Rg8 Rb6 Rgg1 Qb4 Rc2 Rg7 Bc7 Nb5 Rc5 Nc3 Bd6 Na1 Bc7 Kh7 h6 Bc4 Qa7 Be6 b8Q Bb7 Qa2 Bbd5 Qb3 Qd2 Qb7 Qc1 Bb8 Bf5 Qa6 Bg6 Qd3 Qd2 Qdb1 Qc1 Qe7 Be8 Qe6 Rg2 Qe7+ Kg6 h7 Kh6 Qf7 Rg7 h8Q+ Rh7 Qhg8 Bh8 Qg3 Rg7 Qh3#
1b5n/2RQ1B2/2Bb4/P6K/1n2RqN1/nQ1Bn2k/3nn1R1/1n1qr1Rb b - - 0 1 legal: proof: g4 a5 a4 b5 c4 g5 f4 gxf4 h4 d5 cxd5 e5 g5 Ra7 b4 axb4 Na3 bxa3 Bb2 Ra5 Bd4 Ra6 h5 Rg6 Be3 f3 Bf4 exf4 hxg6 Qd6 Qb3 Qe7 Qd1 Qd8 Kf2 Kd7 d4 h5 e4 c5 d6 Ke6 e5 Kf5 d7 Kg4 g7 f5 a5 b4 g6 c4 d5 h4 d6 c3 e6 a2 e7 h3 e8B c2 Bg2 c1B Qb3 h2 Qc3 b3 Qf6 b2 Qd4 Nh6 g8B Na6 g7 Bb7 Qf6 Nf7 Qh6 Nb4 Rb1 a1N Nh3 Nac2 Re1 h1N+ Kf1 f2 Ke2 f1Q+ Kd1 f3 Qf6 f2 Qc3 f4 Bh7 f3 Qb3 Bf4 g8R+ Kh4 Rc1 b1N Be4 Qg5 d8Q Ng3 d7 Bb8 Bg6 Qh1 Bd3 f1N Qe7 Nfd2 d8R f2 Rd4+ Be4 Qd7 f1N Nf2 Nca3 Rc7 Qf4 Rdc4 Rh6 Rc1 Nh8 Bf7 Re6 Rg7 Bh7 Bc6 Bd6 Re5 Be4 Rg8 Nf5 Ke2 Qg1 Rg7 Bh1 Rg2 Re8 Ng4 Kh3 Nf6 Qgh2 Re6 Qg4+ Kf2 N1g3 Rg1 Qd1 Re2 Ndf1 Kf3 Re5 Kf4 Nfd2 Kg5 Re8 Ref2 Re1 Ng4 Ne2 Kh5 Ne3 Rf4 Qg3 Rd4 Qf4 Re4
b3b3/RN5Q/q1r3nP/N1bpq1Q1/1q2B2B/2Q1r3/1b3b1Q/1K1nBk2 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 cxd4 Ra2 f5 exf5 axb4 Ra3 b5 axb5 bxa3 Kd2 Kf7 c4 Kf6 Kc2 Ke5 f4+ Ke4 h4 g5 b6 d5 b7 e5 h5 d3+ Kb3 g3 Ka2 g4 f6 g2 f7 g3 h6 d2 c5 Ke3 f5 Kf2 f6 e4 c6 e3 c7 e2 Nf3 g1Q Rh4 e1Q Bd3 g2 Ba6 Qe5 Nd4 Ne7 Re4 Qf1 Qh5 d1B Nd2 g1B Bd3 Qdd6 N4b3 Ng6 Qg5 Na6 b8Q Qb4 Kb1 Bc5 f8Q Bh5 f7 Bb7 c8Q Nc7 Qg8 Ra6 f8B Ba8 Be7 Rc6 Nc4 Nb5 Qh7 Re8 Nd6 Qe2 Bb2 Kf1 Bc3 Bgf2 Bd8 Re7 Be1 Re8 Nb7 a2+ Kc1 a1B N3a5 Bb2+ Kb1 Ree6 Rg4 Re8 Be4 Qec4 Rf4 Re7 Rf7 Nc3+ Kc2 Nd1+ Kb1 Qa6 Rg7 Qec3 Qh2 Qe5 Qc7 Nh4 Qc8 Be8 Rf7 Ng6 Qch3+ Ke2 Qc3 Kf1 Qgh4 Ne3 Nd6 Rd7 Bh1 Qed4 Qh5 Qg7 Bh4 Re7 Qg5 Nd1 Bf3 Re5 Ra7 Re3 Be4 Qe5 Ndb7
2KN2R1/b5rq/2Pk2r1/2qb3B/Bnq1b3/QQ1n3n/1Bp1N3/3q1B1Q b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 h4 exf4 a4 g5 c5 gxh4 axb5 a5 Ra2 c6 Rc2 axb4 Rc4 dxc4 bxc6 Ra6 Rh2 Ra7 Rh1 Ra8 Kf2 Ke7 Kf3 h5 Ke4 f5+ Ke5 c3 e4 h3 d4 h2 g4 f3 c7 h4 g5 b3 c6 f2 d5 b2 g6 h3 g7 f4 Ne2 f3 Nf4 Nh6 g8Q Qd6+ Kd4 Na6 e5 Ra7 e6 Nf7 Qe1 Ne5 Qg3 Rg8 Rg1 h1Q Ke4 h2 Kf5 c2 Nc3 b1B Nce2 Nd3 Bb2 Rg6 Rg2 Bd7 c8B Nab4 Ba6 Qc5 Bb5 Kd6 Ba4 Ba2 Qb1 Be8 e7 Bg7 Qh3 Bd4 Ne6 Bd7 e8B Bc8 Qe1 Rag7 Rg4 Ba6 Nd8 Bb3 Bg2 f1Q Qd1 Qe1 Bf1 f2 Qa1 Qd1 Qa3 Qa5 Bf7 Ba7 Qf3 Qc5 Qg2 Qg1 Qh1 Qg3 Be8 Qh4 Rg1 Qh7 Rg2 Rg4+ Kf6 Bc8 Bh5 Bf5 Rg1 Be4 Rg3 Kc7 Ke6 Ba2 Rf3 Rg3 Rf8 R3g5 Rg8 Bb3 Bg2 f1Q Bh3 Qf4 Bf1 R5g6+ Bf6 Qfh6 Nb7 Qg1 Qg2 h1N Qf3 Nhf2 Qh1 Kb6 Kd6 Qhd2 Ke6 Rg5 Bb2 Qc3 Kd6 Nh3 Ke6 Ne5 Kd6 Qgc5+ Ke6 Nf7 Kd7 Ne5+ Kc8 R5g6 d6 Bf7 d7 Ned3 Nd8 Ba2 Ne6 Bc4 Nc7 Bb3 d8Q Bf7 Qd4 Bfd5 Qc4 Q3d4 Qca2 Qcc4 Q2b3 Kc5 Ne6+ Kd6 Nd8 Qb6 Bf6 Qbc5 Bb2
1Rn1k1B1/qrQ1N3/n6P/Q7/R1q1n3/1p1n1BRn/Rrb5/KBb3n1 b - - 0 1 legal: proof: d4 d5 b4 a5 e4 axb4 c4 f5 exf5 g5 cxd5 c5 Qf3 cxd4 Qd3 Bg7 Qd1 Bf8 g4 h6 f4 Ra5 f6 Ra8 f5 Nd7 Nc3 Nb8 Bf4 gxf4 Ne4 h5 g5 Ra6 Nf2 Ra8 Ng4 hxg4 Kd2 e5 Kc1 b5 Kb2 f3 a4 e4 h4 d3 a5 f2 h5 d2 h6 e3 d6 g3 a6 b3 g6 e2 a7 e1N g7 b4 Ra6 g2 Nh3 g1N Nf4 Qb6 Qc1 d1N+ Ka1 Ne7 g8B Rh7 Rh2 Nd3 Ra4 Na6 Qc7 Rb8 a8B Qa7 Nd5 Bb7 Qa5 Nc8 Ne7 Be4 Bg2 f1Q Bf3 Rb5 Rha2 Qe2 Bad5 N1f2 Bc4 Nfh3 f7+ Kd7 f6 b2+ Kb1 Bg7 f8R Rb8 Rf7 Ke8 Qc7 Bf8 Rg7 Bf5 Rg3 Qe4 Bcd5 Qc4 Qa5 Rf7 Bde4 Rb5 Ng6 Rfb7 Qc7 Be7 Qa5 Bd8 Ne7 Bh7 Bf5 Bb6 B5e4 Be3 Qc7 Bf5 Qa5 Bc1 f7+ Kd7 f8Q Bg6 Qf6 Ke8 Qc3 R5b6 Kc2 b1N d7+ Kf8 Bf5 Nd2 B5e4 Rb5 Bf5 Ne4 Kb1 b3 Qe5 Rc5 Qec7 Bh7 Bg6 Rf5 Ka1 Rf7 Bg2 Rf2 Bf3 Rb2 Bf5 Bg6 d8R+ Be8 Rd5 Bg6 Rb5 Ke8 Qe5 Rd7 Rb8 Rb7 Qec7 Bh5 Bg2 Bd1 Bf3 Bc2 Bfh7 Neg5 Qf5 Bd1 Be4 Ne1 Bb1 Nd3 Qfa5 Bc2 Bf5 Ne4 Bg4 Qad4 Be2 Qa7 Bf3
2bQ1R2/QNn2BkN/1b2Q3/1Rn4K/R1q1r1n1/R3n3/1np2qP1/b4n2 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 h4 gxh4 b4 a5 b6 Be7 b5 Ra7 Ba3 Bf8 Bb4 Ra6 bxa6 axb4 Kf2 c5 Kf3 f5 e4 Kf7 d4 h5 b7 h3 d5 h2 a7 b3 a8R b2 d6 h4 e5 h3 d7 c3 e6+ Kg7 e7 c4 e8R c2 R8a5 c1B Qd4+ Nf6 Ra7 c3 R1a5 c2 Bb5 Be3 Bc6 Qc7 d8Q Na6 b8Q Rh4 Bd7 Nc5 Qa4 Ng4 Nc3 b1N Rb5 Na3 Rb6 Nb5 Ke2 f3+ Ke1 f4 Qa5 f2+ Ke2 f1N Kf3 Bd6 Qa1 Be5 Na4 Bf6 Qe1 Ba1 Re4 Bf2 Be6 Nfe3 Ra5 Qc6 Bc4 Nc7 Qa7 Qb5 Bf7 Qc4 Ne2 Bg1 Nec3 Bf2 Rf1 h1N Rbb5 h2 Ra6 Ng3 Rd4 h1N Ne4 Bg1 Nf6 Nhf2 Rd3 Nfd1 Nh7 Nb2 Rf2 Ngf1 Ra3 Ned1 Qe6 Nde3 Qdd7 Rh5 Qd8 Re5 Nb6 Re4 R6a4 Bh2 Nd7 Bg3 Rd2 Be1 Rf2 Ba5 Ne5 Bb6 Nc6 Nbd1 Na5 Nb2 Nb7 Nf6 Re2 Nh2+ Kf2 f3 Kg3 f2 Be8 f1Q Rf2 Nfg4 Kh4 Qfe2 Rf8 Nhf1 Bf7 Qf2+ Kh5
1nbn2Q1/QR1NN3/qnPN4/n1nqpK2/3kn2r/1q1R4/6R1/B1r2N2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a6 b6 e6 b7 Nc6 b5 Nb8 b6 Bd6 Bb5 axb5 Kd2 Nc6 Ke2 Bb8 Ke1 Ba7 bxa7 Nb8 Kd2 Kf7 c4 Kf6 g4 Ke5 f3 d5 c5 h5 c6 b4 g5 d3 Ke3 d2 g6 b3 g7 h3 Ne2 h2 Re1 h1Q Qc2 d1N+ Kd2 d4 Ng1 d3 f4+ Kd4 f5 h4 f6 b2 f7 h3 f8N h2 Nh7 e5 Re2 e3+ Ke1 Qb6 Nc3 b1Q Nf8 Q1b3 Ra3 Qhd5 Bb2 h1N Rg2 d2+ Ke2 Nh6 g8N Nhf2 Qg6 Nf7 Ne7 Nd8 Nd7 Ne4 Kf3 e2 Kg4 e1N Kf5 Rh4 Qg8 Nd3 Ba1 N1b2 Nb5+ Kc4 Re2 d1N Rg2 Ndc5 Ne2 Qa6 Ng3 Ndc3 Nd6+ Kd4 Nf1 N3a4 Nd2 Qd1 Rc3 Nc4 Nf1 Na5 Rg4 Qb5 Rgg3 Nb6 Rg2 Nba6 b8R Q1b3 Rb7 Rb8 Rc7 Rb7 a8Q Nb8 Qa7 Qa6 Rg7 Nba4 Rgg3 Rb5 Rg7 Nb6 Rg2 Rb4 Rb7 Ra4 Qg5 Ra2 Qg7 Rc2 Qg8 Rc1 Rd3+
K2R4/2rQ1R1Q/nNr3q1/Nq1n1n2/pr3qP1/4q2Q/r2Qk1BR/2b5 b - - 0 1 legal: proof: f4 a5 b4 b5 c4 g5 a4 e5 h4 gxh4 axb5 exf4 d3 c5 b6 Ba6 b5 Bd6 Bd2 Bf8 d4 cxd4 Bc3 dxc3 bxa6 Bb4 Qd3 Be7 Qd1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kd4 Kf5 c5 Kg4 e4+ f3 a7 f5 c6 h5 b7 f4 e5 h3 c7 c2 c8R c1Q g3 h2 e6 h4 e7 h3 e8Q Nh6 Qf7 Qd6 Qf6 Rh7 Qf7 Qg6 Bb5 Ba3 Qe1 f2 Ne2 Kf3 g4 f1Q Rg1 h1R Rh8 h2 Nbc3 a4 Bd7 Na6 Rg2 Rc8 a8Q Rg1 b8Q h1R Qc6 Rh2 Qbd6 Rg7 Rh7 Nf5+ Ke5 Qd2 Nc1 Qb5 Qh4 Rd1 Qcc7 d4+ Nd5 d3 Nb3 Rb1 Na5 Rb4 Rd1 Bc1 Bc6 Qe1+ Re2 d2 Qh3+ Qg3 Qg8 Rf7 Qg7 Rf6 Qce7 Rc7 Qh8 Rf2 Rf7 Rh2 Q8h7 Rg2 Rh1 d1N Rd2 Nde3 Rh2 Rf2 Rd4 Ra2 Qdd8 Ng2 Qdd6 Ke2 Ke4 f3 Nb6 f2 Qdd8 Qbd3+ Kd5+ Qge3 Ba8 f1Q Qe6 Rb7 Kc6 Qf2 Rd5 Nf4 Qed6 Re7 Qc7 Rfe6 Kb7 Qb5 Ka7 Rf6 Rd3 Rfe6 Bg2 Qfg3 Qd5 Rc6 Ka8 Qgf3 Qc8 Rec7 Qd4 Qf1 Qc3 Qff2 Rd8 Nd5 Qd7 Qff4 Qd2+
2n3r1/p2qB1nQ/5rRK/qq1kQqr1/q5Q1/B1rP3N/R7/R5Rn b - - 0 1 legal: proof: a4 b5 c4 bxa4 e3 d5 f3 dxc4 Nh3 e5 Qe2 e4 Ng1 Bc5 Qd1 Bd4 exd4 e3 g4 g6 Na3 Bf5 Bh3 Be4 fxe4 Na6 Nb5 Nb8 g5 h5 Bg4 hxg4 Nd6+ Ke7 Nf5+ gxf5 Qc2 Kd7 Qd1 Ke8 Ke2 Kd7 b4 Kc6 h4 f4 e5 f5 e6 c3 e7 c2 e8Q+ Kd5 h5 c5 h6 a3 g6 f3+ Kd3 e2 Ke3 e1Q+ Kf4 c4 d3 f2 h7 f1Q+ Nf3 g3 b5 a2 b6 g2 g7 g1R b7 c3 Qe7 Rg5 Rg1 Nh6 g8R Qd7 Qe3 Nc6 b8B Ne7 Rg2 Nc8 Ba3 c1Q Bf8 c2 Re2 Qb2 Rg6 c1R Ba3 Rg8 h8Q Qbb5 Bbd6 Qea5 Qh7 Rc3 Be7 Rb8 Rf2 Rb6 Ng1 Rf6 Nh3 Qaa4 Qg4 Qaa5 Kg3 f4+ Kh4 f3 Rc2 f2 Qeg3 Nf7 Qb8 Nd8 Qe5+ Kc6 Rb2 Ne6 Rd2 Ng7 d5+ Kb7 d6 Kc6 Re1 a1Q Ra2 Qab2 Rea1 Qc2 Bd8 Qca4 Be7 Qdd8 d7 Qe8 d8R Qd7 Qe1 Kd5 Qe2 Qc1 Re8 f1N Qe1 Qcf4 Qe5+ Kc6 Rd8 Ng3 Rf8 Nh1 Rg1 Qfe4 Raa1 Rd6 Rf2 Re6 Rfa2 Rf6 Qb8 Kd5 Qbf4 Re5 Qff5 Qf3 Kg5 Qf1 Kh6 Qf2 Qff4 Rg5 Qc7 Qff5 Qe5+
BnR4K/QB6/1r3r1k/nB1b1N2/1r4n1/1q3pp1/bnbPQ1N1/4N2N b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 a5 a3 e5 Nc3 Bc5 Nb1 b5 a4 exf4 axb5 a4 Ba3 Ba7 Bc1 Bb6 g4 g5 Bb2 Ba5 bxa5 h6 Be5 f3 Bf4 Na6 Ra3 Nb8 Rd3 Qf6 Rd5 gxf4 g5 Qd6 g6 Qd8 Rg5 hxg5 Kf2 Kf8 e4 Kg7 h4 f5 a6 c5 a7 c3 e5 c2 b6 c1R b7 a3 e6 c4 e7 g4 e8B g3+ Ke1 c3 h5 c2 Nc3 f2+ Ke2 a2 Kf3 a1N Ba6 f1B Beb5 Nh6 Ne4 Be6 Nf2 Qg8 Qe2 Nb3 Rh3 Bc4 Nh1 Ng4 Rh2 Kh6 g7 Na5 Rh3 Kg5 h6 Rb1 h7 c1N Rh2 Qf7 g8N Rb4 Nh6 Rf8 h8N Ba2 Ng6 Nd3 Nh4 Qb3 Ng2 Rf6 Rh5+ Kg6 Rg5+ Kh7 Rg8 Rb6 Rc8 Nb2+ Qe3 Bd3 Qe2 Nd7 b8Q Bc2+ Rc3 Kg7 Bb7 Kg6 Qc7 Rf8 a8B Rff6 Qb8 Kh7 Qa7 Nb8 Ne1 Qa3 Nh3 Qa4 Rc8 Kg6 N3f2 Qb3+ Nfd3 Kg5 Ng2 Kh5 Ne3 Kg6 Ne1 Kh5 Kg2 f3+ Kh3 f2 N3g2 f4 Nf5 Kg6 Kh4 f1B Rc3 f3 Rc8 Kh7 Kg5 Rfc6 Qe5 Bc4 Qe2 Bd5 Qe6 Ne3 Kf6 Ng4+ Kf7 Rd6 Kf8 Rdc6 Qe4 Kg6 Qe2 Kg5 Kg7 Rf6 Kh8 Kh5 Nfh4 Kh6 Nf5+
Rq4k1/bpBbR1B1/4B3/5Qp1/qq1Nq3/nr2nQ2/1r2Q1bP/5BK1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 e4 a5 b4 axb4 a3 bxa3 exf5 Ra5 Qe2 Ra7 Qd1 Ra8 g4 h6 f4 g6 Nc3 g5 Ne4 gxf4 g5 Be6 g6 Bc8 Ng5 hxg5 Kf2 e5 d4 c5 f6 f3 d6 c4 d5 c3 g7 Kf7 d7 e4 d6 c2 Bg2 a2 Qe1 e3+ Kf1 e2+ Kf2 Nc6 Qd1 Nh6 Bf1 Na7 Ba3 c1Q Nh3 e1Q+ Kg1 Qc4 Bb2 Qee4 Qe2 Kg8 Nf4 Nf5 Ne6 Nb5 Nd4 Qb4 Bc3 Qc7 d8B Qb8 d7 Rh3 Bc7 Na3 d8Q Ne3 Qd7 Bc5 Qf5 Ba7 Bb2 Bd7 Bc3 Kf7 g8B+ Kf8 f7 Kg7 Re1 a1Q f8Q+ Kh8 Bb2 Qd1 Q8f7 Qda4 Q7d5 Kg7 Rc1 Kh8 Rc6 Kg7 Rf6 Kh8 Be6 Kg7 Rf7+ Kg8 Bg2 Rg3 Kf2 Rh3 Ra1 Rg3 Kg1 f2+ Kh1 f1B Kg1 Rf3 Bh3 Bg2 Qb3 Bh1 Bf1 Bg2 Qbd3 Rf2 Qef3 Rd2 Qde2 Rd3 Nc2 Rb3 Bg7 Bd4 Ra2 Ra5 Ra1 Ba7 Nd4 Rb5 Q5g4 Rd5 Bg3 Bb6 Bf8 Nb5 Qgf5 Qa6 Nc2 Rd2 Nd4 Rdb2 Bg7 Qaa8 Ra4 Na3 Bc7 Qa6 Ra5 Qab5 Ra6 Q5a4 Ra8 Ba7 Re7+
1R3qB1/2n1n2n/p1R1P2b/5bnN/1R3p2/3kQr1B/K1R2r1Q/3nB2n b - - 0 1 legal: proof: b4 b5 f4 d5 a4 bxa4 c4 e5 cxd5 exf4 h4 g5 Nc3 gxh4 Nb5 a3 Nxc7+ Qxc7 b5 Qd8 e4 Kd7 d4 Kd6 Kd2 h5 Kc2 f5 Kb3 h3 g4 h4 g5 a6 g6 h2 g7 f3 b6 a2 b7 f2 Ne2 h3 Ng1 Nf6 g8B Nc6 b8R Nh7 Rb4 Ne7 Ka3 Bh6 Bd2 Qf8 Rc1 a1N Qf3 Nb3 Rc2 Nc5 Qe3 Ne6 Ne2 Nc7 Be1 f4 Bg2 f1N Ka2 Nd2 Ng3 Rb8 Nh5 Bf5 Rg1 h1N e5+ Kd7 e6+ Kd6 Bf1 h2 Bh3 Ne4 Rgg2 Rb6 Rcc4 Neg5 Rgc2 Nf2 R4c3 h1N Rc5 Ng6 R5c4 Nd1 Rc6+ Ke7 d6+ Ke8 d7+ Ke7 R6c4 Kd6 Rc6+ Kd5 d8Q+ Qd6 Ra4 Rb3 Rb4 Ne7 Qb8 Rc3 Qb5+ Qc5 Qbe2 Rb3 Qh2 Rd3 Qef2 Ke4 Qd2 Rf3 d5+ Qd4 Qdf2 Kd3 d6 Qf6 d7 Qf8 d8R+ Ncd5 Bg4 Nf6 Qhh4 Bg7 Rdb8 Nc7 Ng3 Rh5 Qh3 Bh6 Qg1 Rh4 Nh5 Nfh7 Qhg3 Rh2 Bh3 Rd2 Q3h2 Rg2 Qb6 Rgf2 Qe3+
1Q1R2b1/5R1N/1nn3b1/1k1R1R2/1brnQ1BK/rnqppN2/P3b3/7Q b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Nb1 f5 exf5 g5 Qg4 Bg7 Qd1 Bf8 f4 h6 g4 Kf7 Be3 Ke8 Bf2 Ra7 Bh4 gxf4 g5 Ra6 g6 Ra8 Bg5 hxg5 Kf2 b5 c4 e5 h4 d5 h5 Kd7 f6 Kc6 h6 e4 c5 g4 g7 g3+ Kg2 e3 h7 b3 f7 b2 Qc1 d3 Rh4 f3+ Kh1 d2 Nh3 d1Q Rd4 b4 Qd2 g2+ Kh2 g1N Kg3 b3 Rc4 f2 Qd3 d4 Bg2+ Nf3 Bh1 f1B Bg2 Be2 Qe4+ Qd5 Nd2 b1B Ng5 b2 Bh3 Qb3 Bg4 Nf6 g8Q Kb5 c6 Bb4 f8R Ra3 c7 Be6 c8R Nfd7 Rf5 Qc3 Rd8 Nb6 Rc7 Bf7 Re7 Nc6 Ree5 Bbd3 Rh1 b1N Rf1 Bc4 Qe8 d3 Qf8 Rg8 h8Q Bg6 Nh7 Nfd4 Nf3 Nd2 Kh4 N2b3 Qh6 Rg7 Qhf4 Rb7 Qh2 Rc7 Qh1 Qc5 Qf8 Bg8 Qd6 Rc8 Qb8 Qd5 Rf7 Ne7 Nd2 Rc6 R1f5 Rc4 Nf3 Nec6 Rexd5+
Qr1q3r/3NQb2/1B2B3/5k2/rpb2b1b/N1pP4/q1Nb1B1n/1RBK4 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 h5 f5 d5 cxd5 e6 Kf2 exf5 Ke1 f4 a4 b6 g4 hxg4 Qc2 Nc6 Qd1 Na7 Ra3 Nb5 axb5 Bb7 Ra7 Bc8 Ra5 bxa5 e4 Ke7 h4 Kf6 h5 g5 d6 c5 b6 a4 e5+ Kf5 d7 g3 b7 g2 b8Q g4 e6 f3 e7 a3 e8N a2 h6 a1Q h7 g3 Bc4 f2+ Ke2 f1B+ Ke1 Ra4 Nc3 Bd6 Qb6 Nf6 Qa6 Bf4 Qb7 Ng4 Be2 c4 Nb1 c3 Na3 Qa2 Bc4 Nh2 Nf3 g1B Nf6 g2 Qa8 Bge3 Qe2 g1B Kd1 Bgf2 Ne1 Bh4 Nec2 Ba6 Bd5 Bc4 Rg1 Bh3 d3 Bd2 Qe7 Bg2 Ne4 f6 Nc5 Bf3+ Qe2 Bh5 Re1 Bf7 Qe7 Kg6 Rh1 f5 Rf1 Bh6 Re1 f4 Rf1 f3 Re1 Qc7 d8B f2 Nd7 Kf5 Rf1 Qb8 Bb6 Bhf4 Re1 f1R Bf2 Rf8 h8B Qd8 Bhd4 Rh8 Bb6 Rg1 Rf1 Rgg8 Bb2 Be5 Ke2 Qb8 Rb1 Bef4 Kd1 Qc7 Bc1 Rb8 Qe8 Qc8 Qe7 Qd8 Be6+
n2B1KBq/Rq1Q1N2/3BPNk1/nQp2b2/1Q6/r3n1rp/1p4b1/1bB5 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 f4 b5 c4 bxa4 f5 d5 cxd5 e6 Bb2 exf5 Ra3 f4 Rb3 axb3 Bc1 Bc5 Nh3 Bg1 Nxg1 a4 Kf2 f5 Kf3 Kf7 g4 h5 d4 c5 e4 h3 d6 h4 d5 b2 b5 h2 e5 h3 b6 a3 g5 a2 d7 a1N b7 Ra6 g6+ Kg7 d6 Rh6 Qb3 Rh7 Nd2 Nc2 Ne4 Ne7 Qb5 Nbc6 b8B Nd5 Bc4 Qh8 d8B Nb6 d7 Na5 Bd6 Na8 Nf6 Ne3 Bg8 Rh5 Qb4 Rg5 Qb5 Kh6 g7 Kg6 Qb4 Nb7 Qb5 Ra3 Qb4 Na5 e6 Ba6 B8c7 Bd3 d8Q Bb1 Qd7 Rg2 Bd8 Rg4 Ne2 Rg2 Nc3 Rg4 Rg1 h1Q+ Rg2 Rg5 Nce4 Rg4 Ng5 Rg3+ Kf2 f3 Nf7 Qd1 Rg1 Qd5 Rd1 f4 Rd3 Ra2 Ra3 Qb7 Ra4 Ra3 Qdb5 Nc6 Ra7 Na5 Ke1 f2+ Kd2 Nb3+ Kc3 f1B Qd7 Bg2 Qdb5 Nc2+ Kc4 Be4 Qd7 f3 Qdb5 Bf5 Qd7 Qc8 Kd5 f2 Qdb5 Qb8 Kc6 f1B Kd7 Bg2 Ke7 Qb7+ Kf8 Ne3 Ng5 Qh4 Bh7+ Kh6 g8Q Qh5 Qf7 Na5 Bg8 Qh4 Qfd7 Kg6 Nf7 Qh5 Q4c4 Qh8 Qcb4
5RR1/N3n3/B1bK3n/q4Q1p/1R5p/2p1P1n1/qq1QQQ2/B1kn2qr b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 a4 exf4 Nh3 b5 Ra2 g5 Ra1 b3 Ng1 b4 Kf2 Ra5 Ke1 Rb5 axb5 Qd7 Ra3 Qe7 Ra1 Qd8 h4 Nd7 g4 Ne7 h5 Nb8 h6 Ng6 Nc3 Ne5 Ne4 Ng6 Ng3 Be6 Nf5 Bg7 hxg7 Bc8 g8R+ Nf8 Nh4 gxh4 g5 Ke7 g6 Nfd7 g7 Nf6 Rf8 Kd6 Rg8 Kd7 Kf2 Kd6 Kf3 Ke5 d3 Kd4 e3+ Kc3 b6 c5 d4 b2 b7 b1Q d5 b3 d6 b2 d7 Qa5 d8Q Ng4 Qe8 Qba2 Ke4 b1N Kd5 f3 Qda4 f2 Qe7 Nh6 Rd8 Bd7 g8Q Nc6 Qe4 Ne7+ Kd6 Bc6 Bd3 f1N b8Q Ng3 Bb2+ Kd2 Qab4+ c3 Rf8 c4 Ne2 f6 Q4b5 c2 Qf7 c1Q Nd4 Nc3 Qef5 Nd1 Qd8 c3 Rb1 Qc2 Ba1 Qc1 Rb3 Qcb2 Rb4 Kc1 Qg4 f5 Re1 f4 Qbf5 f3 Ba6 f2 Rg1 f1Q Nb5 Rg8 Qe2 Rg4 Rg2 Qg1 Na7 Rf4 Qdd7 Rf1 Qd8 Qh2 Qff2 Rh1 Q7f3 Qg1 Qf5 Nhg8 Qdd7 h5 Qd8 Nh6 Qdd7 Nf1 Rgg8 Ng3 Qd5 Qba3 Q7f5 Q3b2 Qdd2+
N4rq1/kp1R1n2/n5R1/2q1qPB1/6r1/nR1Q1p2/npNq4/2QQ1KQ1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 b4 a5 e3 axb4 c3 g5 Bc4 gxh4 Bb3 d3 e4 f5 Qd2 f4 Bc2 d6 Qd1 Bf5 exf5 dxc2 Na3 e5 Qd2 e4 Qd3 e3 Qd1 e2 Kd2 Bg7 Nb1 Be5 Qf1 Bd4 Qd1 Be3+ fxe3 Ra7 Nh3 Ra3 Ng1 Ra8 Ke1 Kd7 g4 Kc6 a4 Kb6 g5 h5 g6 d5 c4 b3 g7 d4 c5+ Ka6 e4 d3 a5 b2 c6 f3 e5 h3 e6 h2 c7 h4 c8Q h3 e7 Rh5 e8R Rh4 Re7 Rg4 Ra3 Nh6 g8Q Nf7 Nc3 Ka7 Bg5 c1N a6 Na2 Rd7 d2+ Kf2 e1N Na4 Qf8 Rb3 Nc2 Nb6 Na3 Qcc1 Qc5+ Kf1 Qe5 Ne2 Qc5 Qe1 d1Q Rg1 h1Q Nd4 Qh2 Nc2 Qdd2 Qed1 Qhe5 Qg6 h2 Qd6 h1Q Qd3 Qhh8 Rg3 Nc6 Rg2 Re8 Na8 Rf8 Rg1 Ncb4 Rg3 Kb8 a7+ Kc8 Rg2 Na6 Bf4 Qcc3 Nc7 Rh4 Rg6 Qg8 Bg5 Rd4 Qe3 Rg4 Qg1 Nb8 a8Q Qcc5 Qa5 Na6 Na8 Kb8 Qb5 Ka7 Qd3
4r3/B4nNQ/2r2b1p/1RN1QpnQ/3RP2n/3N1Q2/rp1b1np1/4k1K1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 e5 e3 exf4 a3 a5 Bc4 axb4 Ba2 b3 g4 bxa2 h3 f5 Qd3 b6 Qd1 Ba6 Nf3 Be2 Ng1 Qf6 g5 Bg4 gxf6 g5 Kf2 Bf3 Ke1 g4 Ne2 g3 Ng1 Bg4 hxg4 Ra5 Rh4 Ra4 Rh1 Ra8 Kf1 Kf7 c4 Ke6 f7 Ke5 c5 Ke4 c6 d5 g5 b5 a4 h6 g6 b4 g7 b3 c7 g2+ Kf2 d3 c8Q f3 a5 d4 a6 d2 a7 Kd3 e4 Nd7 Rh5 Ne7 g8Q Ng6 Qg7 Nde5 Ne2 Bb4 f8N Nh4 Kg1 Nf7 Ne6 Re8 Qb7 Rac8 a8Q Rc6 Qf1 d1R Qe5 Rd2 Nbc3 Kc2 Qd8 d3 Rb1 a1B Qg5 Bb2 Ng7 f2+ Kh2 Ba1 Nf4 Re2 Be3 d2 Qg4 d1N Ba7 Kd2 Nd3 Bb2 Qh1 f1N+ Kg1 Nh2 Qf3 Nf2 Na4 Ba1 Nac5 Bac3 Qee7 Bf6 Qe5 Ba5 Rg5 Bc3 Rb2+ Kd1 Rg6 Bd2 Nf4 Ke1 Qd7 Bg5 Rd6 Bf6 Qb7 Nhg4 Rd4 Ng5 Qd5 Ne5 Nfd3+ Kd1 Qc7 Nef7 Qce5 Ng6 Qhh5 Nh4 Nc1 Ke1 Rb1 Nh8 Qg8 Nhf7 Qh7 b2 Ra1 Re3 Ra5 Ra3 Rb5 Ra2 N1d3+
4K2R/1kRpn2b/1N3Q2/1rQ2r2/2r5/B1p2pRb/p1PQ1N2/n1rQ1b2 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 a4 bxa4 g5 exd4 g6 Ba6 Ra2 Bb7 Ra1 Bc8 b4 a5 Bh3 Qg5 hxg5 Bc5 Be6 Bb6 Bb3 axb3 Rh2 a4 Rh1 Ba5 bxa5 Bb7 Ba3 Ba6 Bc1 Bc8 Kd2 Kd8 Kd3 c5 Kc4 Kc7 Kb5 h5 e4 f5 g7 a3 e5 c4 e6 d3 g6 d2 a6 h4 a7 h3 e7 a2 e8Q b2 Qde2 d1R Qd3 h2 Qe5+ Kb7 Qf6 c3 Kc5 f3 Kd6 f2 Na3 f1B Nc4 b1R Ba3 f4 Nh3 f3 Qd2 Nc6 Nb6 Rb5 Rb1 Rh4 Nf2 Nge7 g8R Na5 g7 Rc1 Rb4 Re4 Rc4 Nb3 Qd1 Na1 Rc7+ Ka6 Rh8 Rc4 g8Q Bb7 Qgf8 Be4 Rg1 h1B Rg3 Bh7 Q8h6 Rb8 Qhd2 Rb7 a8Q+ Ra7 Qe6 Bhg2 Qad5 Bh3 Qc5 Ra8 Qf6 Rf8 Rc8 Rf7 Kc7 Ka7 Kd8 Ka6 Ke8 Kb7 Qfd4 Rf4 Qf6 Rf5 Rc7+
Q7/1qRRQnn1/1kQb2rB/5B1n/1rn3r1/qb1PB2n/1N1Q4/1rb4K b - - 0 1 illegal: No possible last move
N2qb3/1N2B1rn/3n1rN1/3n2nK/1BqQn3/1P3kbB/1r4qR/2Br2Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Ra2 exf6 Ra3 f5 Rh3 f4 Rg3 fxg3 e4 Ke7 Ke2 Kd6 Kf3 Ke5 Kg4 f5+ Kf3 d5 h4 g5 c4 a5 h5 f4 b6 d3 b3 d2 h6 d4 h7 a4 b7 d3 c5 a3 c6 a2 c7 a1Q Ne2 g1R Ba3 g2 Bc5 g4+ Kf2 f3 Kg3 f2 Nd4 Qa4 Ba7 Nh6 Nc3 Nf5+ Kh2 Kf4 e5 g3+ Kh3 Bd6 e6 Nd7 b8B Nf8 e7 Bd7 c8Q Qc4 Qb7 Be8 Bb6 Ra2 Ndb5 Rb2 Qd5 Rg8 h8B Rg6 Bf6 Nh7 Qa1 d1N Rh2 d2 Ba5 Nde3 Qd4+ Kf3 Nd5 d1R Nf4 Nd5 Nc7 Rh6+ Bh4 Rf6 Na8 Bc7 Ba7 Nd6 Bb4 Bb8 Ng6 Bc7 Bd3 f1N Bf5 Nd2 Bac5 N2e4 Bg5 Rgf1 Kh4 g1N Bd7 g2 Kh5 Nh3 Bc1 N3g5 Bh3 g1Q Qa7 Qg2 Qg1 Bc6 e8N Bb8 Qg7 Rf7 Q7d4 Rg7 Nf6 Be8 Nd7 Nb5 Be7 Bg3 Nc5 Nbd6 Kh6 Ke2 Kh5 Rf6 Nb7 Kf3 Ba5 Ke2 Bc3 Kf3 Bb4
kB1b4/1P3brN/2K1Q3/B2rrb2/rR2q3/B2n2N1/1B2r1Nn/n2Qq1b1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 g4 h6 b4 Qa5 f5 Qd8 Bh3 Qa5 Ra3 Qd8 Rf3 h5 Rf4 gxf4 g5 Rh7 Bg4 hxg4 Be3 Rh6 Bc1 Rh8 Ke2 a5 c4 e5 h4 d5 g6 Kd7 g7 Kc7 f6 Kb7 c5 d3+ Kd2 g3 Kc3 a4 h5 d4+ Kc4 a3 b6 e3 Kb5 g2 h6 f3 f7 e4 h7 d2 Rh4 f2 Qc2 f1R Qd1 a2 Rh5 a1N Rf5 e2 Qa4 d1B Qc2 e1Q Bh6 d3 Ne2 g1B Na3 d2 Nc4 e3 Ng3 e2 Rf4 Qd5 Ne3 Qe4 Ng2 Be7 f8B Nf6 g8N Ra4 c6+ Ka8 c7 Ng4 Nf6 Bf5 c8Q Nh2 Qe6 Rg8 h8B Nc6 Nh7 Bd8 Bb2 Rf2 Qc1 Bc2 Qd1 Ne5 Rg4 Bb3 b7+ Ka7 b8B+ Ka8 Bhg7 Nd3 Bgc3 Rg7 Bc5 Qe5 Kc6 Qe4+ Kd6 Ba2 b5 Bc4 b6 Bb3 Qb1 d1R Ba5 Rd2 Qd1 Bc4 Qf6 Bf7 Bca3 Qf3 Nf1 Nf4+ Kc5 Rd5+ Kc6 Qd2 B5b4 e1R Qe5 Nd3 Qe6 Ree5 Ng3 Qe1 Ba5 Rfe2 Rb4 Qe4 b7+
3R1n2/1KN3N1/Q2Q1bbR/3nR1q1/2b1nn2/2bBkN1r/2rbb2P/6bN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 Kf4 Kd5 f5 c4 a5 b4 g5 b6 g2 c5 g3 b7 a4 e5 g4 b5 d3 b6 d2 c6 a3 c7 a2 e6 Bh6 e7 Nf6+ Kc5 d5 e8R d4 Rg8 d3 Qc1 Nbd7+ Kc6 Ne4 b8N Ke3 b7 f4 Na6 f3 b8Q f2 Nb4 Qg5 Qc2 d1N Na3 d2 Rf8 Ndc3 Rf5 d1B Nh3 g1B Rf4 g2 Nd3 g3 Rf6 Be2 Ne5 Nf8 Qa4 Bf5 c8N Bg6 Re1 a1B Nf3 Nd5 Ne7 Bc3 Qd6 Rc8+ Kb7 Bg7 Re6 Bgf6 Qaa6 Bd2 Rd1 Rc2 Nb5 Bc4 Bd3 f1B Nf2 Be2 Re5 Rh3 Nf5+ Kf4 Ng4 Bd4 Rhe1 g1N Ng7 g2 Nf2 Ke3 Nc7 B4c3 Re6 Rh8 Nh1 Nh3 Re5 g1B Rf1 Nhf4 Rf2 Rh3 Rg2 Qh5 Rgg5 Bf5 Rg6 Qg5 Rh6 Bh7 Re8 Bg6 Rd8 N8e6 Ra1 Nf8 Ra5 Ne7 Rf5 Ned5 Re5
1br1QBQ1/r3N1rr/1nbN3n/4NP1B/rn4r1/1r1R3k/2q3B1/4B1nK b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Ra2 fxe4 Rb2 b6 Rb4 axb4 a5 Ra7 axb6 Ra8 c4 Kf7 f4 Ke6 Kf2 Kf5 g3 d5 Kg2 e5 c5 h5 b7 e3 c6 b3 b6 b2 c7 d3 Nf3 Kg4 f5 d2 Bc4 h3+ Kg1 h2+ Kg2 d4 Qb3 d1R Qb5 d3 Bd2 e2 Ba5 e1N+ Kf2 e4 Bf7 e3+ Kf1 d2 Ne5+ Kh3 g4 e2+ Kf2 h4 g5 Nf3 g6 e1N g7 Nh6 g8Q Bd7 c8B Qc7 Qg6 Nd3+ Ke2 Rg1 Bc3 d1R Be8 Ra4 Na3 b1R Be1 Bc6 Qg8 Bd6 Bh5 Nd7 b8N Rg7 Kf1 Ng1 b7 Rb3 Nac4 Nb6 Be6 Rc1 Bd5 Rhh7 Bdf3 Nb4 Kf2 Qc8 Kf1 Bc7 Nd6 Rg4 Qe2 Rhg7 Qe3 Rca1 Qe4 Ra7 Qe2 R1a4 Qb5 Bd5 Nbc6 Bb8 Ne7 Qc2 Qd7 Bc6 Qde8 Ne2 Rg1 h1R Kf2 Rh2+ Rg2 Ng1+ Kf1 Rd4 Rd2 Rhg2 Rd3 R2g4 Ne4 Rd8 Nd6 Bc7 b8B Rc8 Ndc4 Bd8 Bd6 Bc7 Nd5 Bb8 Bf8 Kh2 Ne7 h3 Bc3 Kg3 Nd6 h2 Be1+ Kh3 Qg6 h1R Qe8 Kh2 Bg6 Nf7 Bh5 Rh4 Bg6 Rhh7 Bgh5 Nh6 Bd2 Kg3 Bc3 Rh4 Bd2 Ne2 Be1+ Kh3 Kf2 Rhg4 Kf1 Ng3+ Kg1 Ne2+ Kh1 Ng1 Bg2#
2K1bk2/1n4QQ/1P2Bbb1/N1Rqr2Q/nNb5/1b2rR1Q/2n5/1n1n1b1R b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Bd2 exf4 Bb4 axb4 a5 b6 axb6 Ra4 Nc3 Ra6 Nb1 Ra8 Kd2 d5 Kd3 f5 e4 h5 g4 f3 c4 b3 g5 f2 c5 h3 g6 f4 b7 h4 c6 b2 b6 h2 g7 h3 e5 f3 c7 Ne7 g8R Nbc6 b8Q Bf5+ Kd2 d3 Kc3 d4+ Kc4 d2 Kc5 d3 c8Q Ra5+ Kc4 Nd5 e6 Nc3 e7 Bg6 Qa4 d1B Be2 f1B Rg7 f2 Qcb7 d2 Rf7 Bg7 Qc2 Na4 Nf3 Re5 Ne1 Bf6 Na3 b1N Nd3 Na5+ Kb4 Rh4+ Nc4 Rhe4 Bg4 Re3 Be6 Bde2 Q7c8 d1N Qa7 Nb7 Na5 Beh5 Q8c3 Qd5 Q2b3 Bhe2 Ra2 Beh5 Rc2 Bhe2 Qd4 Beh5 Rc5 Bhe2 Rg1 h1B Kb5 h2 Ka6 Bhe4 Qa1 h1B Qab2 Bhf3 Rh1 Bfh5 Qd4 B4f3 Qg4 B3g2 Qh3 B2e4 Qc4 Bef5 Nb4 Bc2 Qd3 Bb3 Bg4 Bg7 Rf3 Bf6 Bd7+ Kf7 e8Q+ Kg7 Qh8+ Kf7 Qb5 Bec4 Qh7+ Kf8 Be6 Be8 Qb8 Bg6 Qbc7 Bg2 Ka7 f1N Kb8 Rc3 Qbc6 Nfe3 Kc8 Bgf1 Qb5 Nc2 Qcd7 Re1 Qc7 Rce3 Qe5 R1e2 Qeh5 Re5 Qbd7 R2e3 Qdg7#
1RNQ4/8/1qb4n/1Qr2kN1/1nqq3Q/4bb1n/NQB1rPrq/2r1BK2 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Ra2 fxe4 Rb2 b6 Rb4 axb4 a5 Ra7 axb6 Ra8 g4 Kf7 c4 Ke6 b7 d5 b6 h5 c5 d3 g5 b3 g6 b2 g7 e3 c6 d4 c7 h3 Qf3 h2 Qc6+ Kf5 Qd6 e5 Qe7 d2+ Ke2 d1R Qb4 h4 Qb5 h3 Qa4 d3+ Kf3 e2 Bd2 e1R Nc3 b1Q Qa3 e4+ Kg3 e3 Qb2 e2 Qc2 Bd7 c8Q Nh6 g8N Rc1 Kf3 Qb3 Nd5 Na6 b8Q Nb4 b7 Bc5 Qg3 Qb6 b8Q Qc4 Qa6 Be3 Qd8 Bc6 Qdd6 Rc8 Qh4 Rh7 Qc3 Rg7 Qb2 Rg2 Qdd8 Rc7 Bc3 d2 Qb5 d1Q Bd2 Rc8 Bc3 Qdd4 Bd2 Be8 Nc3+ Rc5 Na2 Bd7 Nf6 Bc6+ Nd5 Red1 Be1 Rd3 Bd2 e1N+ Ke2 Nf3 Be1 Ng5 Nf3 Rg4 Rg1 h1B Bg2 h2 Kf1 Nh3 Ng5 Rg3 Bf3 Rg2 Be2 Rd2 Ne7+ Ke5 Bd3 Re2 Ne4 Ke6 Nc8 Kf5 Bb1 Rg6 Rg3 Bf3 Bc2 h1Q+ Rg1 Qh2 Rg2 Rd6 Rg8 Rg6 Re8 Rg2 Ng5+ Qe4 Re7 Qed3 Rb7 Qde4 Rb8 Qed3 Ne4 Qdd4 Ng5+
2r2b1q/N2kb2n/q7/8/n1b1BNQr/1R4PQ/q1nN1r1n/BBKb3B b - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 b4 exf4 Ra3 b5 axb5 cxd4 c4 Qa5 Rb3 Qd8 Rc3 dxc3 e4 a5 b6 h5 c5 f5 e5 d5 e6 a4 e7 h3 g3 f3 b5 d4 c6 h4 c7 f2+ Ke2 a3 b7 c2 Kd2 f4 b6 f3 Rh2 a2 Qe2 a1N Ba3 c1B+ Kd1 d3 Rh1 d2 Bc5 h2 Qd3 h3 Bd4 Kd7 Ne2 Rh4 Rg1 h1R Qh7 h2 Nf4 Nf6 Bg2 f1N Ne6 f2 Be4 Na6 b8Q Ba3 b7 Nc2 Ba1 Nc5 Qh5 Rf4 Qg4 Na4 Qh3 Nh7 e8B+ Kd6 B8g6 Kd7 Qa7 Bae7 Qe3 Qe8 Qf3 Qf7 Rg2 Rh4 Qfg4 Rg1 Bgf5 h1Q Rh2 Rg2 b8N+ Ke8 Bg6 Ba6 c8B Bc4 Nc6 Rb8 Bb7 Kd7 Na7 Rc8 Bed5 Qg8 Bf3 Qh8 Bbe4 Qg1 Rh1 Qh2 Rg1 Qh1 Bgf5 Nh2 Re1 Qf1 Bg6 Qd3 Re3 Qa3 Rb3 Qa2 Bgf5 Ne1 Bg6 f1Q Bgf5 Rf2 Bh1 Bd5 Na3 Qb5 Nc4 Qa6 Bb1 Nc2 Bfe4 Rf1+ Ke2 d1B+ Kd2 Rf5 Kc1 Rf2 Nd2 Bc4 Nf4+
4Rn2/NNkbRb1n/1q1Q1B2/3br2N/7P/2n1rN2/b1K1R1Qn/4rnr1 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Bh3 f4 Nb1 Bd6 Qd1 f2+ Kd2 f3 Bg4 Bf4+ gxf4 hxg4 h4 f1N+ Kd3 b5 e4 d5 a4 Kd7 c4 g5 f5 b3 a5 g3 c5 f2 a6 g4 e5 b2 f6 g2 a7 g3 f7 b4 f8N+ Kc7 e6 b3 c6 Rh5 e7 Nh2 e8Q f1N Qg4 Nd7 Qeg6 Ngf6 Bg5 Nh7 Bc1 Re5 Nf3 g1R Bg5 g2 Na3 b1B+ Nc2 b2 Q6e4 Ba2 Na3 b1N Qe6 Nc3 Ng6 Ndf8 Kc2 Bd7 Re1 Qf6 Re2 Re8 a8R d3+ Kc1 d2+ Kc2 d4 Nc4 Qd8 Nd6 Qb8 Qf6 Qb6 Nb7 R8e7 Re8 d1B+ Kd3 Bdb3 Nf4 Bg8 Nh5 Bgd5 Kc2 Bf7 Qe6 Bd5 Bf6 d3+ Kc1 d2+ Kc2 Ba2 Q4d5 Re3 Qh3 R7e6 Re7 R6e5 Qd6+ Kc8 c7 d1B+ Kc1 Bdb3 Qg4 Bbd5 Kc2 Ng3 Qg5 Rd1 Rhe1 g1R Qg7 Ngf1 Qg2 Ra1 Qa3 B7c6 Re8+ Kd7 c8N Kc7 Na7 Bd7 Rb1 B5e6 Rb4 Rb1 Re4 Bed5 Qb4 Re1 Qd4 Rg5 R4e7 Rf5 Qb4 Rfe5 Qd6+
1n2bK1B/NN1rNQn1/R4b1q/qq1R3q/2Q1n3/1q6/1k2qnPq/3R1R2 b - - 0 1 legal: proof: d4 b5 h4 g5 f4 gxf4 b4 a5 d5 axb4 e3 e5 d6 e4 Be2 Ra5 Bf3 exf3 Kf2 Ra8 Rh2 cxd6 Ke1 d5 Rh3 d4 Rh1 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Bh6 Nc3 Bg7 Nb1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 a4 h5 e4 d5+ Ke5 f5 a5 d3 a6 b3 c3 b2 g6 d4 a7 f2 a8N f1N g7 b4 Nh3 f3 Nc7 f2 Ng5 f4 Na6 h4 Nf7 h3 Rh2 f3 Qc2 b3 Rh1 h2 Bg5 d2 Rg1 d1N Ra2 h1Q Bf4 d3 Nh6 d2 Nf5 Qa5+ Nc5 Ng3 Ne7 f1Q Kd6 f2 e5 Qh2 e6 Bd7 Be5 Nh6 g8Q Be8 Qf7 Bg7 Nb7 Qe2 Rf1 Rh7 Qc1 Kd3 c4 Bf6 Nc3 b1Q c5 b2 c6 Kc4 c7 Kb3 c8R Qg6 Rc5 b1Q Nb5 Ne4+ Kd5 Qg5 Na7 Nf5 Ra1 Qba2 Qc4+ Ka3 Rb1 Qgh6 Rb6 Qeh5 Ra6 Qb3 Bc3 Ng7+ Be5 Nec3+ Kd6 Kb2 Rd5 Qbb5 Rh1 f1Q Rg1 Qff3 Rf1 Qe4 Qg8 Bh4 Ng6 Bc6 e7 Ne8+ Ke6 Nf2 Qg7 d1Q Kf7 Qdb3 Kf8 Qee3 Rdd1 Qee2 Bf6 Qhe3 Qgg8 Qeh6+ Bg7 Bf6 Qgd5 Qhe3 Bh8 Nce4 Qg8 Qeh6+ Qg7 N8d6 e8R Nf5 Red8 Be8 R8d5 Q2h3 Kg8 Qh2 Qf8 Rd7 Ne7 Ng7 Qf7 Bh4 Kf8 Bg5 Qe6 Bf6 Qf7
b1nKB2n/1QNQ2qr/5n1p/3Nk1qQ/r2nN1b1/Rn2R2r/3q2P1/7Q b - - 0 1 legal: proof: h4 e5 d4 a5 b4 axb4 f4 g5 d5 g4 d6 exf4 Qd2 g3 Qd1 Be7 Be3 Bg5 Bf2 gxf2+ Kd2 cxd6 hxg5 d5 Rh6 d4 Rh4 Qa5 Rh1 Qd8 Kd3 Ke7 Kc4 Ke6 Kc5 b5 a4 f5 e4 d5 c4 d3 e5 d4 g6 f3 g7 d2 a5 b3 a6 f4 a7 h6 Ra6+ Nc6 Qe2 d1B Ra5 d3 Rh2 b2 Qe4 d2 Ra6 b4 Nc3 b1Q Rh3 b3 Rb6 b2 Rh5 Ne7 g8N Bb7 Na2 Ng6 Rh4 Rh7 Rb3 Qa1 Nc3 b1R Qe1 Nh8 Nh3 Ne7 Ra3 Rb3 Nb5 Rc3 Be2 f1N Nf2 Nh2 Rh3 Ng4 Ne4 f2 Ngf6 f3 Qh1 f1N Bd3 Qd5+ Kb6 f2 Kc7 Ng3 c5 f1N c6 Ne2 Bc2 Kf5 Ba4 Qg8 Nd5 Rb3 e6 Qg5 Nf2 Qag7 Kd7 Rc3 c7 Nd4 c8Q Nf6+ Kd8 Bh5 Rg3 d1Q Nbc7 Nd2 Rd3 N2b3 Bb5 Rb8 a8Q Qdd2 Qa4 Ba8 Bd7 Rb5 Qb7 Nc8 e7+ Ke5 e8Q+ Ne7 Rg3 Bg4 Ne4 Rb4 Qeh5 Nc8 Be8 Rf3 Qab5 Ra4 Qd7 Rd3 Re3 Rc3 Re1 Rh3 Re3
b2Q2K1/2b1B1p1/2PN2n1/r2rN3/1N1QQRb1/1kr3q1/Bqq2rr1/Q4n2 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kf4 Kd5 h4 Kc4 Ke5 d5 e4+ d3 b6 a5 h5 f4 b7 d4 c3 f3 h6 f2 b5 a4 b6 a3 h7 a2 Qe1 a1Q Nf3 g1Q Bg5 g2 Rh4 Na6 b8N Nb4 b7 Nd5 Na3+ Kb3 c4 d2 c5 d1R c6 Nge7 Na6 Qb2 b8Q+ Bb7 Ke6 d3 Kf7 d2 e5 Ng6 e6 Bd6 e7 Bc7 e8Q Ne3 Nc4 Qd3 Nb4 Qdc2 Rf4 Ra5 Nfe5 Ba8 Bd3 f1R Qa7 Rf2 Qd4 Nf1 Nd6 Qh2 Qee4 g1R Qd8 Rgg2 Be7 Re8 h8Q Qg3 Qg8 Rc1 Qh8 d1B Qh1 Bg4 Qg1 Rh8 Qh1 Rh5 Kg8 Qe2 Bb1 Rc3 Qg1 Qec2 Qh1 Nh2 Qf1 Rd5 Qa6 Nf1 Qa1 Ra5 Nef7 Rhc5 Ne5 Rd5 Ba2+
2q1N1k1/Q1bb2N1/1Qrb3Q/1b1Pb2r/B2QK3/n4B2/1Bn1b1Rp/5bn1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Ra3 exf4 Rb3 b6 Rb4 axb4 a5 Nf6 axb6 Ng8 Kf2 c5 Kf3 f5 g4 Kf7 d4 h5 e4 b3 e5 c3 b7 c4 b6 c2 g5 b2 d5 c3 Bc4 h3 Bd2 c1B Be2 c2 Bb5 h2 Bc4 h4 Bc3 h3 Ba2 Nd7 b8Q Ngf6 b7 Rh5 g6+ Kg8 g7 Ng4 e6 Ra6 e7 Rc6 e8Q Nde5+ Ke2 Bd7 Qa8 Qc8 b8Q Ne3 Nd2 b1N Nc4 Bb2 Bb3 c1B Qg6 Bd6 Qaa7 Na3 Ba4 Nf3 Kd3 Nec2 Ne2 Ng1 Ng3 f3 Qh6 f2 Qbb6 f4 Ke4 f1B Nf5 f3 Qdd4 Ba1 Bb2 f2 Qde3 Bc7 Ncd6 Bb5 Ne8 f1B Qc3 B1f4 Qcd4 Ne2 Rg1 h1B+ Rg2 h2 Qg6 Bfd6 Qh7+ Kf7 g8B+ Kf8 Qg6 Ng1 Bh7 Bfe2 Qh6+ Kf7 Bg6+ Kg8 Nfg7 Bf1 Bc1 Bc3 Bb2 Bfe2 Qd3 Bce5 Bf5 Bf1 Bg4 Be2 Bf3 Bf1 Rg6 Bhg2 Rg3 Be2 Qdd4 Bgf1 Rg2
8/Q5KP/5n1n/b1pn2k1/rrnr4/QR1Q1BNn/Rq2Q1n1/1N2bn1N b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Bb2 h6 Ng1 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Ke7 a4 Kf6 h4 b5 e4 g4 d4 g5 h5 g3+ Ke1 b3 Kd2 g2 Kc3 b2 a5 b4+ Kc2 c3 Kd3 b3 a6 g4 a7 g3 d5 f2 Kd4 c2 h6 c1R d6 f3 d7 Bb4 h7 c5+ Kd5 Kg5 Ke6 Qb6+ Kf7 Rc4 d8N Ba5 e5 Nh6+ Kg7 Nd7 f6 Rd4 f7 Nf6 Ba6 f1N f8Q f2 e6 Ne3 e7 f1N Ne2 g1B e8Q g2 Qd3 Bf2 Ng3 g1N Qff7 Nh3 Nb7 Ng2 Nd6 Bfe1 Qee2 Rhb8 Bb7 Qb4 Be4 Qc3 Ra3 Rbb4 Rh2 Qd2 Nh1 Qc1 Nd2 b1N Nf5 b2 Rb3 Na3 Nfg3 b1N Bf3 Nc3 Nb1 Ncd5 Qd7 Qd2 Qa4 Nc4 Qa3 Rh8 a8Q Qb2 Qb7 Ra4 Qd7 Rb8 Qa7 Rbb4 Qed1 Nh4 Rc2 Ng2 Q1e2 Qc1 Ra2 Qc2 Nc3 Qb2 Nb1
Q2b1KQ1/4R3/R1p4n/3BqP1b/2rk1n2/4n2N/rqqRB1br/1nR3Q1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 g5 axb5 d5 f5 dxc4 b3 h5 Ba3 Bd7 Bd6 Bc8 Bf4 gxf4 g4 Bd7 g5 Qc8 Nc3 Be6 Nd5 Qd8 Ne3 Bc8 Ng4 hxg4 Ke2 Kd7 d4 Kd6 h4 Kd5 g6 a5 b4 e5 h5 c6 b6 e3 g7 c3 Kd3 c2 h6 c1R h7 e2 b5 e1Q b7 f3 b6 a4 Nh3 f2 Rh2 a3 Qc2 g3 Qb2 g2 Ng1 a2 Rh6 Rc4 Rh4 Bd7 Rh5 Be7 Nh3 g1N Rb1 a1Q Rc1 Ra2 Qb1 Na6 b8Q Be8 b7 Qb2 Qa8 Ne2 b8R Nc3 Rb6 Nc7 Ra6 Nh6 g8B+ Ne6 Rg5 Qc7 Rg7 Bd8 Re7 Qd1+ Ke3 e4 Bd3 f1B Qa1 Kd6 d5 Ke5 d6 Bh5 d7 Qdc2 Bf7 Bg2 Qb1 Rg8 h8Q+ Rg7 Qg8 Rh7 Qa1 Kd5 Qb1 Qe5 Qa1 Kc5 Qb1 Nf4 Bd5 Bc7 Qa1 Nb1 d8R Bb6 Rd6 Bd8 Rg6 Bgf3 Rg2 Rh8 Rd2 Bg2 Kf2 e3+ Kg3 e2 Kh4 Kd4 Kg5 Qc7 Kf6 e1N Kg7 Qe5+ Kf8 Qcc3 Bf7 Nc2 Be6 Ne3 Bd5 Qbc2 Qb2 Rh7 Qb3 Q2b2 Qd1 Qcc2 Qg1 Rg7 Raa7 Rg4 Ra6 Rh4 Nf2 Rh1 Nh3 Rh2 Be2+
1n1Nqb2/1P2Q2Q/3B1q2/n2N1r1b/3b2qR/1k3QBr/1rr1p3/K3Bn1B b - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 g4 c5 e4 cxd4 a4 gxf4 g5 b5 axb5 fxe4 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 Kf7 h4 Ke6 c4 a5 Kc2 d5 Kb2 f3 h5 e3 h6 a4 g6 d3 c5 d4 Rh5 d2 c6 d3 h7 a3+ Ka1 g3 c7 f2 g7 g2 Be2 a2 Rd5 f1N Ba3 Qe8 Qe1 Ra5 Kb2 d1R Bh5 d2 Rd4 Rc1 Nf3 d1Q Ng5+ Ke5 Ne6 a1R Be2 g1B Nd8 Bg4 Nc3 Rab1+ Ka2 e6 c8Q Ne7 g8Q Nec6 Bf3 Qg6 Rf4 Qf6 Qb7 Kd6 Qa8 e5 Bh1 e4 Qb7 Rb3 Qe2 Qdd4 Qf3 Rc2+ Ka1 Rbb2 Qg6 Ke5 Qbf7 Qd7 Qfg7 Qe8 Qe7+ Kd4 Qh5 Kc4 b6 Na6 b5 Kb3 b7 Nab8 b6 Rg5 Bd6 Na5 Nd5 Rf5 Qhh3 Rg8 Qh6 Bh5 Rh4 Rg3 Qg6 Rh3 h8B Qe6 Bc3 Q6f7 Qh6 Qf6 Qe5 Qeg6 Qg7 Qgg5 Qh7 Qg4 Qe8 e2 Qef7 Bd4 Bcb4+ e3 Bg3 Nd7 b8B e1Q+ Qd1 Be7 b7 Bf8 B8d6 Nb8 Qe6 Qee2 Bbe1 Qb5 Qe5 Qe8 Qee7 e2 Qd3+ Bc3 Qde4 Bd4 Qf3+
KBR1rn1k/N7/3r1nPQ/B5N1/1q1qpn1Q/4bB1N/b2n4/Bn2nn2 b - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 g4 c5 e4 cxd4 a4 gxf4 g5 b5 axb5 fxe4 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 e3+ Kd3 Kf7 Kc4 Kg7 Kc5 a5 h4 e5+ Kd5 g3 c4 f3 h5 g2 c5 e4 b6 f2 b7 d3 g6 a4 c6 a3 b5 a2 b6 a1N c7 d2 Qb3 d1N Nf3 g1N Nbd2 e2 Qe3 Ra6 Ng5 Bc5 Bg2 Qe7 Nh3 Nb3 Nf3 d6 Qg5 Nd7 Kc6 d5 Bb2+ d4 Ba1 Ngf6 Qh4 d3 Nfg5 d2 Bf3 Nc3 h6+ Kg8 Rh2 e1N h7+ Kg7 Rg2 f1N Rf2 d1Q Rc2 Nb1 Rc1 Rg8 h8Q+ Kf8 Q8h5 Kg7 Nh7 Re8 Qh6+ Kh8 Rc4 Nf8 Rc1 Bg4 c8N Qd2 Na7 Be3 Rc2 Qa3 Kc7 Bc8 Kb8 Qd4 Ka8 Be6+ Rc8 Ne2 b8B Qe5 b7 N3d2 Rc5 Qb4 Rc8 Ba2 Bc7 Rd6 b8B Qed4 Ba5 Nf4 N7g5+
rN1qr2n/3p2r1/4Rr1P/2b3Q1/Nn1Q1r2/K2B2b1/Q1N1n3/Bkn2n1Q b - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 d4 cxd4 f5 b6 f6 exf6 Bg5 f5 Nd2 f4 Nb1 f5 Bh6 f3 Bc1 f4 a4 Bb7 Ra3 h6 Rc3 Be4 Rc5 h5 Rg5 Bf5 gxf5 Nc6 Rg3 Nb8 Rg4 hxg4 Kd2 Ke7 h4 Kd6 c4 Kc5 Kc2 g5 Kb2 b5 e4 d3 h5 Kd4 c5 g3 h6 b3 f6 g4 e5 d2 a5 g2 a6 b4 e6 f2 a7 g3 e7 f3 e8Q Nc6 f7 Nge7 Qe1 d1N+ Ka1 b2+ Ka2 b3+ Ka3 Nb4 c6 Nc3 c7 Nca2 c8N Ng6 Bf4 Nc1 Bc4 f1N Q8e7 f2 Nh3 g1N Nb6 g2 Ng5 Nge2 Na4 g1B Bd3 Bh2 Ne4 Bg3 Qg5 Bc5 f8Q Rg8 Bd2 Nh8 Qff4 Rf8 Qd1 Rf6 Qf3 Rf4 Rg1 Rf6 Qh1 Rf4 Bc3+ Ke3 Nbd2 b1R Ba1 b2 Nc4+ Kd4 Nec3 Rf6 Ne5 Rf4 Nb5+ Ke3 Qb3 Kd2 Qbd5 Kd1 Nc6 Rf6 Bc4+ Kc2 Qd4 Nd2 Nd6 Nc3 Na5 f1R Qg6+ Ncd3 Nc6 Rbe1 Nb8 b1R Nb2 Bh4 Nf5 Re8 Ne3+ Kc1 Rg4 Ne2 Nc2 Be1 Re4 R1f4 Qhh5 Bf2 Re6 Be1 Ka4 Bh4 Na6 Rb8 a8Q Rc8 Qa7 Ra8 Nb8 Bf2 Qh1+ Be1 Nd1 Rb3 Qg8 Nf1 Nb2 Kb1 Qa6 Ndc1 Qgg1 Rh3 Bd3 Rg3 Qa5 Rgg8 Qg5 Bg3 Qa6 Ba7 Qac4 Rg7 Ka3 Bb6+ Na4 Bc5 Qa2+
3rbrrN/3b1bQR/Bn4N1/5Br1/5Nr1/1PnQN2b/pn3B2/K4k1q b - - 0 1 illegal: No possible last move
nK4Qn/1N2n2R/1n6/r1N1r1b1/1Q1RqqnP/4N2b/p1b1B1NR/1k2n3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 d5+ Kd3 Ke5 b4 a5 e4 f5 c4 g2 c5 g3 c6 g4 b6 f4 c7 f3 b5 a4 b7 a3 b6 f2 Rh3 a2 Qc2 Nd7 b8N Qg5 b7 Ra5 Nd2 Bh6 Qb3 Qf4 Qa3 Nb6 Qb4 Na8 Qb3 Ne7 Qb4 Bg5 Rb1 Re8 Be2 f1N Qb2 Ne3 Na6 Nc4 b8Q Ncb6 Bd1 Be6 Ne2 g1N Qd8 g2 c8N g3 Na7 Nf3 Qa1 g1Q Rh2 g2 Nb5 Qe1 Nc5 g1N Rb4 Nh3 Qc3 Bc8 Nd6 Qh1 Kc2 Ne1+ Kb3 Bf5 Qc4 d3 Nf1 d4 Ndb7 d2 Ne3 d3 Qg8 Bg4 Rd4 Be6+ Kb4 Qg2 Ba4 d1B Bb5 d2 Qd7 Bc2 Qd6+ Kf6 Qb8 d1N Bd3 Ndf2 Qd6 Qff3 Nf4 Ng4 Be2 Qgf1 Nfg2 Nf4 Qb8 Nfg6 Qd6 Nh8 Qb8 Ra3 Kb5 Qf4 Qd6 Q1f3 Qb8 Rd3 Ka6 Ra3+ Na4 Bd7 Ka7 Bc8 Qd6+ Be6 Qb4 Ke5 Nf1 Bc8 Kb8 Qd3 Nac5 Ra5 Nfe3 Qc4 Rd6 Qd5 Rh6 Qc4 Rh7 Kd4+ e5 Qe4 Qa4 Kc3 e6 Kb2 Qa3+ Kb1 Qc3 Neg6 e7 Qf7 Qd2 Qff4+ Qd6 Rf8 e8R Rf5 Re5 Ne7 Rd5 Re5 Rd2 Nh6 Qd4 Bh3 Qa4 Ng4 Rd4 Nf6 Qa3 Ng4 Qb4+
BBb4K/1R1nn2R/r3QR2/1nP2bbN/1r2q2r/1B3pQR/r7/kbr5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 a5 b4 d5+ Kf4 g5+ Kf3 Ke5 h4 f5 e4 a4 c4 a3 c5 a2 b6 f4 b7 d3 h5 Kd4 h6 Kc3 h7 d2 b5 d4 e5 d3 Ke4 f3 e6 g4 Ke5 Bh6 e7 Bg5 e8B Nd7+ Ke6 Ne7 Kf7 Ra6 Nh3 g1N Kg7 g2 b8Q g3 b6 Ne2 b7 g1R Bg6 g2 Ba3 Nd4 Nf4 Nb5 Qe2 d1B Be4 d2 Bc1 Bc2 Rh3 d1B Nh5 Qe8 Qg3 Bb1 b8R Bdc2 Bf4 Kb2 Ba8 Rh1 Qe4 g1R Bc4 Rc1 Qe6 Bf5 Rb7 Rhe1 Bb3 Re4 Bb8 Rb4 Qc4 Ng8 Qd5 Qe4 Qf7 Ne7 Qe6 Rf8 h8R Rf6 Rf8 Rh6 Rf6 Rh8 Nf4 Rh4 Nh5 Bd3 Rh2+ Rc2 Re2 Rg4 Rh1 a1R Reh2 Rc1 Kh8 Ka1 Nf4 Rca2 Rh7 Rh4 Rh3 Bb1 Nh5
Bn3kB1/1Q1B1b1K/1bpN1bR1/5r1b/1qP2q2/b1r1b1Q1/1q3B2/1RnR4 b - - 0 1 legal: proof: c4 e5 a4 h5 f4 g5 g4 b5 Nc3 gxf4 g5 Nc6 axb5 Nb8 d4 exd4 Qc2 dxc3 Qf5 Bd6 Qh3 Bf8 Qg4 hxg4 Kf2 d5 b4 f5 h4 a5 e4 f3 Ke3 d4+ Kf4 g3 e5 g2 h5 d3 h6 c2 g6 a4 e6 f2 g7 a3 b6 c6 b5 d2 b7 d1B h7 a2 b6 Nh6 g8B Bh5 e7 Qd6+ Kg5 f4 Be3 c1B Ne2 g1B Bg2 f1Q Rh2 f3 Rb1 a1B Nc3 f2 Rh1 Qb4 Bh3 Ng4 Ne4 Ne5 Kf6 Be6 Nd6+ Kd7 Kg5 Ra3 e8B+ Ke7 Bd7 Nd3 Bc8 Bef7 Bhd7 Qfe1 Kf5 f1Q+ Bf2 Be3 Rd1 Na6 b8Q Bf6 Bb7 Qec3 Ba8 Qcb2 b7 Rc3 Qc7 Nc1 b8Q Bb6 Qbc8 Nb8 Q8b7 Bh2 Rg1 Bf4 Rg6 Bfe3 Ne4 Bfh6 Qg3 Kf8 Nd6 Bec5 Qh2 Bhe3 Qg3 Be8 Bd5 Rg8 h8R Bf7 Rhh6 Qa5 Rh7 Ba3 Rh8 Qab4 B5e6 Be2 Rh1 Bh5 Rg5 Na6 Re1 Ne2 Rb1 Be8 Rg4 Rg6 Bg8 Bf7 Rg1 Nb8 Rg5 Qg2 Rgd1 Qh2 Qf4 Nc1 Rg2 Rg3 Qg5 Rf3+ Qf4 Be5 Kg5 Bh8 Kh6 Bf6 Kh7 Qg3 Qh4 Rf5 Rgg1 Qh2 Rg6 Qf4 Qg3
2KBb1qq/1pNBq2N/rq1b1q2/5P2/1n1rQR1r/3N1n1k/N6q/5QB1 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Ra2 fxe4 Ra3 bxa3 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 Kg5 d4+ e3 g4 h5 a5 a2 f3 a1Q d6 c4 a6 c3 a7 c2 d7 h3 Ke6 Kh4 f4 e2 d5 e1R+ Qe2 h2 d6 Rd1 f5 Nc6 g5 Nh6 g6 Nb4 g7 Nf7 g8N Qb6 Qg2 Ne5 Qg6 Rd4 Bf4 c1Q Nh3 Nf3 Bb5 Qg1 Nf6 Rh7 Qf7 Qg8 Rf1 h1Q Nc3 Qh2 Nf2 Rh6 Nd3 Kh3 Bg5 h4 Be3 Qf4 Na4 Re4+ Ne5 Nh2 Bc4 Kg3 Bc5 h3 Bd4 Qd2 Rf4 Nf3 Bd5 h2 Nc3 h1Q Bc6 Qh5 Be3 Kh3 Na2 Qh2 Bg1 Qhg5 Bb5 Rh4 Nh7 Qh8 Qe8 Rc4 Kf7 e6 d8Q Bd7 Qf6 Qg4 Nd3 e5 Qee7 Be8+ Ke6 e4 Qb2 e3 Qc1 e2 Qf1+ Qgg2 Bc6 Qag7 d7 Rd4 d8B e1Q+ Qe2 Rb8 a8N Qg2g3 Nc7 Ra8 Nb5 Ra6 Nc7 Bg6 Qe8 Bd6 Ba4 Qe5+ Kd7 Qef6 Kc8 Bf7 Q8e5 Be8 Bd7 Qgg8 Qf2 Qe3 Qd5 Qee6 Qe4 Qee7 Qf1+
3kn1r1/2Rq4/1R2nqQB/2rnPn2/pb1b4/b3Bn2/NB4K1/bQ1R3B b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 a5 f3 a6 bxa6 Qd2 a5 Qd1 a4 Na3 h5 Rb1 f5 Ra1 f4 Nc4 Ba6 Ne5 Bb7 Nf7 Be4 Ne5 Bf5 gxf5 Ne7 Ng4 hxg4 Ra2 Ng8 Ra3 Rh3 Ra1 Rh8 Kf2 a5 c4 d5 b4 g5 e4 a3 h4 a4 h5 a2 c5 g3+ Ke1 d3 b5 d4 h6 g4 b6 g2 Kf2 d2 e5 d3 c6 Na6 f6 Ba3 c7 Nc5 c8R Ra5 b7 Ne6 b8B Rc5 Rc6 Qd7 h7 Kd8 f7 Nf6 f8Q+ Ne8 Rc7 Rg8 Rb1 a1B Qe2 d1N+ Ke1 f2+ Kd2 g3 h8B f3 Bg7 Nc3 Ke3 d2 Bh6 Nd5+ Ke4 d1N Qd6 Bb4 Qa2 N1e3 Ba7 Nf5 Ne2 g1B Nc3 g2 Bb2 Ba3 Bb5 f1Q Bc6 f2 Kf3 Qa6 Qb3 f1N Na2 Bd4 Rd1 g1B Qb6 Nf8 Qg6 Nh2+ Kg2 Ne6 Rb1 Bgf2 Rhd1 Nf3 Qb5 Bc3 Bb6 Bcb4 Qf1 Ra5 Bbe3 Rc5 Bbd4 Ndf4+ Kh1 Bd2 Qd3 N3h4 Rbb7 Ng5 Qb1 Bdb4 Bc1 Qb6 Bc3 Bd4 B3b2 Qa6 Bf3 Nd5 Be3 Qf6 Rb6 Ne6 Kg1 Qdg7 Kf2 Qd7 Bh1 Nf3 Kg2
rnrR1RBn/2br3N/5p1N/1r1bR1b1/3KR1r1/3Q2Qb/P4kq1/1Nq5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Bb2 exf5 Bf6 f4 Bh4 Qd7 Bf2 Qd8 Bg3 fxg3 e4 Ke7 Ke2 Kf6 Kd3 Kg5 h4+ Kf4 h5 b5 d6 c5 h6 g5 d7 c4+ Kd4 c3 e5 f6 d3 b3 h7 b4 e6 g2 e7 Kg3 e8Q c2 Rh4 c1B Rh3+ Kf2 Rg3 b2 Ke4 b3 d4 Qc7 d8N Bd6 d5 Nh6 Nf3 g1R Nc6 Nf7 Na3 b1B+ Qd3 b2 Bg2 Rd1 Ncd4 Qc5 Rh3 g3 Rh5 g4 Qe5 Bg5 Nf5 Bc7 d6 Qc1 d7 Rg8 d8R Nh8 Bf1 g2 Nh6 g1R Kd4 g3 Rh4 g2 Re4 Bb7 Qh2 Bd5 Re5 Bc2 Nb1 Ba4 Re4 Bd7 Be2 Rd2 Bd1 Bh3 Bb3 Rg7 Rf8 Rd7 Re5 Rc2 Re4 Ng6 h8R Rc5 Rd8 Rc3 Rhf8 Nh8 Na3 b1R Re5 Rb2 Nb1 Rcc2 Bc4 Rb5 Re4 Bgf4 Ng5 Rc3 Nh7 Bg5 Na3 Bcf4 Bb3 Rc8 Nb1 Bc7 Nd2 Qa3 Rae1 Qc1 Nb1 Rh1 Qd6 g1Q Qh2+ Qg2 Re5 Rg1 R1e4 Rb7 Bd1 Rb3 Bg4 Rb5 Be6 Re1 Bg8 Re3 Ree8 Rg3 R8e5 Rg4 Qhg3+
q4N1Q/4Nq2/r1PB2q1/3B2R1/1q3b2/1pnB1b1Q/B4nr1/KbN1bq1k b - - 0 1 illegal: No possible last move, all moves rejected
4rn2/q7/r2QR1B1/5Kb1/nnp1NR2/bQ1q3r/1N1knRPN/b1b2R2 b - - 0 1 legal: proof: c4 f5 b4 d5 e4 fxe4 f4 dxc4 h3 a5 Bb2 Bg4 hxg4 axb4 f5 g6 Be5 g5 Bf4 gxf4 Ke2 Kd7 a4 Kd6 d4 Kd5 g5 h5 f6 c5 a5 e5 g6 b5 f7 h4 a6 e3 Kf3 h3 Kg4 Ke4 a7 h2 d5 e2 d6 Ke3 g7 e1B d7 e4 Ra3+ b3 Qc1+ Bd2 Ne2 b4 Ra5 c3 Qc2 b2 Nc1 b3 Ra1 f3 Ne2 f2 Nd4 c4 Qd1 c2 Nf3 c1B Nd4 Nc6 Ra6 Qa5 d8Q Ba3 f8R Nge7 g8N Ng6 Ne7 Nb4 Rg1 h1R Rg8 R1h3 Qd5 Nf8 Bd3 f1Q Nc3 b1N Nec6 b2 Qd6 Qa4 Bc2 Qd3 Nf3 R8h6 Rg7 Re8 a8R Rf6 Rb6 Qa7 Rf7 Rfe6 Kf5 Reh6 Na2 Nc3 Nh2 b1N Rf1 Na4 Ne5 Nbc3 Ra6 Ne2 Nc3 Bcb2 Qb1 Ba1 Qb3 Bdc1 Bb1 Kd2 Rc6 Qdd4 Nd3 e3 Nb2 Rg6 Be4 Qd3 Rf4 Ng1 Rd8 e2 Rf6 e1B Rd7 Bf2 Rdf7 Bh4 Ra6 Qdd4 Bb1 Qd3+ Ne4+ Ke3 Re6 Ne2 Ra5 Bg5 Rd5 Qc3 Rd1 Qd3 Rg1 Rg7 Rff6 Rc7 Rgf1 Rc6 R4f2 Rb6 Kg4 Rc6 R6f4 Ra6 Kf5 Rc8 Ke5 Re8 Nc3 Qd1 Bg6 Qdd4+ Kf5+ Kd2 Qe5 Qe3 Qd6+ Qd3+ Ne4+
3NKn2/1q1Q1B1B/2N1bq2/4nP1b/3N1p1r/1nQn4/R1B1Bqkb/2q3r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 f5 cxd4 b4 f6 e4 Na6 Bf4 Nb8 Ra3 Nc6 Re3 exf4 e5 Nb8 e6 Bb7 Re4 Bc8 Re5 fxe5 Kf2 Ke7 Kf3 Kd6 Ke4 h5 g4 a5 c4 a4 e7 a3 e8B a2 g5 a1N b6 h3 g6 d3 b5 d2 b7 h4 g7 h2 b6 h3 Nc3 Nf6+ Kd3 e4+ Kd4 e3 g8B e2 Qb3 e1N Be6 d1Q+ Bd3 Ng4 Bg6 Ne5 Qb1 Rh4 Nd5 Qd2 Qc1 Qf6 Bef7 Qf2+ Ke4 Ra4 Bc2 Nb3 Bh7 Ra1 Ne7 N1d3 Ne2 Bg7 Rg1 h1Q+ Rg2 h2 Nc6 Bh8 Qb2 Qc1 Nd8 h1Q Qc3 Kc5 Nd4 d6 N4c6 Nbd7 b8N Nf8 b7 Be6 Nd4 Rb1 Nbc6 Ra1 Nf3 Rb1 Rh2 Qhg2 b8Q Qgg7 Be8 Qb7 Qc7 Qfe1+ Re2 Neg6 Qb2 Qg7 Qc3 Qb2 Qd7 Nb4 Ng1 d5+ Kf3 d4 Ke4 d3 Nf3 d2 Bf7 Rc1 Bb1 d1B Bd3 Qg1 Rc2 Qa3 Ra2 Qh6 Bb1 Bd4 Bc2 Be3 Nd4 Bh5 Bb1 Ne5 Bd3 Qf6 Bc2 Kb6 c5+ Ka6 Qe8 Nbd3 Nf3 Kb5 Qe7 Qh2 Qd7 Bg1 Nd4+ Ka6 Qb4 Qf2 Qc3 Bh2 Qe7 Bd7 Kd5 Be6+ Kd6 Ra1 Qd7 Rg1 Nb4+ Ka5 c6 Kb6 c7 Qc1 Nbc6 Qg7 Ke7 Qg5+ Ke8 Qf6 Qa1 Kc5 Qc8 Kd5 Qd7+ Ke4 Qc3 Qb6 Ne2 Kf3 Ned4+ Kg2 c8B Ndc5 Ba6 Qb7 Be2 Ncd3 Ra1 Nfg6 Ra3 Nf8 Ra2
R1N1rbK1/Q3b3/PRQ1p3/1qq1Q1Qb/2k1q3/Bbn1N3/1n5r/2nN2n1 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 gxf4 g4 d5 cxd5 h5 g5 f5 Bh3 fxe4 Bg4 hxg4 Kf2 Kf7 d4 c5 h4 b5 a4 b3 h5 g3+ Kg2 b2 h6 b4 h7 f3+ Kf1 g2+ Kf2 b3 Kg3 f2 Kh4 f1B Kh5 c4 a5 c3 d6 Ke6 Kg6 Kd5 Kf7 e3 g6 e2 g7 e1B d7 c2 Rh6 Bh4 Na3 b1Q Nc4 b2 Rb6 Be2 Nh3 g1N Nf2 Qc7 d8Q+ Nd7 Qe8 Ngf6 g8N Nc5 Qe1 Beg4 Nd1 Nfe4 Qf2 Nc3 Ra3 Nd3 Nce3+ Ke4 d5 Kd4 d6 Qc5 Qc6 Bce6+ Kg6 Rc8 d7 Re8 d8Q+ Bd5 Ra2 e6 Qg5 Bb3 Kf7 Bf3 Ne7 Bh5+ Qg6 Bg5 Nc8 Bge7 Ra3 Qa1 Ra2 b1Q Ba3 Qab2 Ra1 c1N Ra2 Bg4 Qg5 Qe2 Ra1 Nb2 Ra2 Qe4 Ra1 Rg8 h8Q+ Kd3 Qhe5 Rh8 Ra2 Rh2 Kg8 Bh5 Qf7 Bd6 Qa7 Bde7 Bb4 Qec4 Ra4 Q4b5 Ba3 Qg4 a6 Qf3 Rb4 Qe4 Rb8 Qa4 R4b6 Qab5 Qeg3 Kd4 Ra8 Kd3 Q3f4 Kd4 Qfe5+ Kd3 Ng4 Kc4 Nge3+
Bn1bKnN1/Q1prPBN1/b3b3/2B5/4q2r/1q2Q3/Qk1B2q1/1bq2Rr1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Ra3 exf4 Rb3 b6 Rb4 axb4 a5 Nf6 axb6 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 h5 e4 h3 g5 c3 b7 h2 d4+ Kb6 d5 Ka5 g6 f3 b6 c2 g7 Ka4 d6 Kb3 d7 h4 Ke6 h3 Kf7 f4 e5 f2 e6 f3 Qe1 Rh4 Nc3 Be7 Qe3 Nf6 g8B Nh7 Bd2 c1Q Nd5+ Kb2 Ne2 b3 Nf6 Nf8 Bg2 f1Q Nd4 f2 Nf5 Ra1 Rg1 h1Q Ng7 h2 Bc6 Qh3 Rf1 Qe4 Bd5 h1R Bc6 Na6 b8B Qhg2 b7 Rg1 Ba7 Nb8 Bc5 Ra4 Bd5 Rd4 Bc6 Kc2 Bd5 b2 Bc6 b1B Bd5 Nc6 b8Q Rd3 Qb6 Nb8 Qa7 Kb2 Bc6 Ba6 Ba8 Qc8 d8Q Rd7 Ke8 Qcb7 Bf7 Qb3 Qc8 Bd8 e7 Bc4 Qca6 Be6 Rd1 f1B Ng8 Bfd3 Rf1 Bb5 Qa4 Ba6 Qa2+
RQ2r3/K1R2nb1/Q7/n2P2k1/Rb2qbB1/Rrp1r3/nBb1n3/1N2r2Q b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Ne4 g2 Ng3 hxg3 Qa4 Qf6 Qd1 Qd8 d4 Ke7 Kd2 Kf6 Kc3 a5 e4 g5 b4 c5 h4 a4 b6 g4 b7 a3 d5 a2 b5 Bf5 h5 Nh6 b6 Qe8 Qc2 Nc6 b8Q Na5 Nf3 g1N b7 g2 Qd3 g3 Qa7 Ne2+ Kc2 g1B b8Q c3 Be3 c4 Nd2 g2 Rh3 Bh2 Nb1 g1R Bc1 Bb4 Qf3 Rg3 Qh1 Re3 Bb2 Kg5 Qa6 Bf4 Bg2 f6 Bf3 Nf7 h6 Ra7 h7 Rb7 Rh4 Qe7 Bh5 Re8 h8R Bh7 Bg4 f5 e5 Rb6 Nd2 Bg6 Rc1 a1B e6 Rb7 Rh3 Rb6 R8h4 Bh7 Kb1 c2+ Ka2 Rb5 Nb1 Bg6 Ba3 Bg7 Bb2 Rb7 Rd1 Rb6 Rd3 Rb7 Ra3 c3 Rh7 Bge5 R3h4 c1N+ Ka1 Na2 Rg7 Qc7 e7 Qc4 Rgh7 Qe4 Rg7 Rh8 e8R Bd4 Rc8 Re8 Rg8 Bg7 Rc7 Bg3 Rgh8 f4 Rg8 f3 Rgh8 f2 Rg8 Nac1 Rf8 Nd3 Ka2 f1R Rfh8 Re1 Rg8 Nc4 Kb3 Ndc1+ Ka4 Bf4 Rgh8 Na5 Rf8 Ra7 Kb5 Na2 Kb6 Ra8 Qbb7 Rab8 Ka7 Be7 Qa8 Rb3 Qb8 Bb4 Qbb6 Re5 Ra8 Re8 Qb8 Qe6 Rh6 Bc2 Rf6 Qe4 Rfc6 Be7 Rc4 Bed6 Rca4 Bdf8 Qh8 Bb4 Qh1
2r2N1B/2b1B2B/n3rQn1/1kN1n1nB/q1pqn3/1P2Q3/4r3/QK1n2qR b - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 Kf2 e5 Ke1 exf4 Ra3 f3 Ra2 Qd6 Ra1 Qd8 Ra3 h5 Rd3 f5 Rd6 f4 Rg6 Bf5 gxf5 Ke7 Rg5 Ke8 Rg4 hxg4 e4 c3 h4 Kd7 d4 Kc6 f6 a5 b3 g5 f7 f2+ Ke2 f3+ Kd3 c2 h5 g3 h6 g2 h7 g4 e5 g3 d5+ Kb5 d6 Ra6 d7 c5 e6 a3 e7 a2 e8B a1R Kd2+ c4 Rh6 a4 Ne2 g1N Rd6 g2 Rf6 a3 Rg6 a2 Rh6 Bd6 f8Q Ne7 Rh4 Bc7 Re4 Nh3 Re6 Ng5 Rh6 g1Q Ba3 c1N Kc2 Nd3 Qf6 Ne5 Nf4 Re6 Rh1 Na6 Bd3 f1N Bh5 f2 Nd2 Ng3 Ng6 f1N Ne4 Ne3+ Kb2 Rf8 h8B Rc1 Qdf1 Rc2+ Ka1 Re8 Nf8 Re2 Qc1 Nd1 Qb2 N7g6 Be7 Nf4 Qa3 Rb6 Nc5 Re6 Bdg6 N3e4 Bh7 Nfg6 Qc1 Bd6 Qb2 Qa5 d8Q Qa4 Qc3 Bc7 Qdd4 Rc8 Qcd2 Ne3+ Kb2 Nd1+ Kc2 a1Q Qb2 Q1a3 Kb1 Q3b4 Qe3 Qd2 Qa2 Qd4 Qa1
4Q2N/Rkbb3R/r7/qp1qP2b/1BR1n3/4r1b1/1K2b1q1/Nb1rNQN1 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 Nh3 h5 Qd3 f5 Qd1 f3 Ng1 f4 Bh3 Nc6 Kf2 Nce7 Ke1 Nf5 gxf5 Bc5 Bg4 hxg4 Qd2 Be7 Qd1 Bf8 Kd2 g5 e4 b5 h4 d5 c4 Kd7 Kc2 Kc7 a4 f2 a5 f1Q a6 g3 e5 g2 f6 f3 c5 g4 f7 b3+ Kb2 d3 c6 g3 a7 d4 h5 f2 h6 d2 h7 d3 Ra5 Qd5 Kc3 b2 Na3 b1B Nc2 Nf6 Rh2 Qe1 Nb4 f1B Bb2 Bd7 Nc2 Be2 Ra4 Bd6 Ba3 Ne4+ Kb2 Bh5 Qc1 d1B f8N d2 Bb4 Bde2 Na1 d1R Ng6 Kb6 c7 Kb7 c8R Bc7 Nh4 Rf8 h8N Rf3 Ra6 Rfd3 Nhf3 Re3 Bf8 Qa5 Bb4 Rd4 Qf1 Rd1 Nh3 g1Q Ne1 Qf2 Ng1 g2 Rc6 Qg3 Rc4 Qg5 Nh3 g1B Rg8 Bf2 Ng1 Bhf3 Rh7 Bh5 Rc8 Qg2 Rf8 Bg3 Rd8 Rb8 a8Q+ Kb6 Qc6+ Ka7 Qe6 Rb6 Qe8 Kb7 Ra8 Ra6 Ra7+
4Qq2/1KQ2n2/8/1nqnBP1B/B2Nqn2/qNqRBQ1n/k6p/1rb4b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 d4 g5 Kd2 gxh4 Ke1 c5 Ke2 cxd4 Kd2 d3 Ke1 d4 a4 f5 Ra3 Ra5 Ra2 Rd5 exd5 b5 Ra3 Qd6 Rc3 Qb6 Rc6 Qa5 Re6 Qd8 Re4 fxe4 Kd2 Kd7 c4 Kd6 g4 Kc5 f4 e5 a5 h5 g5 b3 g6 Kb4 c5 e3+ Ke1 e4 d6 h3 c6 e2 Kf2 e1N f5 b2 a6 e3+ Kg3 h4+ Kf4 h2 Ke4 h3 Kd5 e2 d7 d2 c7 d3 g7 Ng2 a7 e1Q a8Q Nf4+ Kd4 Bb7 c8B Na6 Nf3 Nc7 Qc2 d1N Nfd2 Ne3 Qd1 Nh6 g8Q Ned5 Qa2 Nf7 Qa6 Bh6 Qgg6 Qf8 Ne4 d2 Qe2 Kb3 d8B d1N Ng3 b4 Bd7 Nf2 Qae6 Ka2 Qc6 b3 Nd2 b1Q Qf3 b2 Bf6 Qa1 Be2 b1Q+ Qcc3 Qb3 Ba4 Qba3 Nb3 Qg1 Be5 Nb5+ Kc4 Ba8 Be3 Qgc1 Rg1 h1Q Rd1 h2 Rd3 N2h3 Bd1 Qc2 Ne2 Rg8 Qe6 Rg1 Ned4 Qf2 Be2 Rb1 Qe8 Qfg1 Qa5 Q1b2 Qc7 Qhg2 Qg3 Qe4 Qf3 Qgc1+ Rc3 Bb7 Bd2 Qe3 Qg3 Nd3 Bd1 Nf6 Bg4 Bh1 Bh5 Nd5 Qf3 Qe4 Bg5 Qae7 Bd2 Qba3 Bdf4 Qcb2 Bd2 Be3 Bc1 Nd3f4 Rd3 Bf2 Bd2 Be1 Be3 Bd2 Qcb8 Bc1 Qd6 Nb4 Kc5 Nbd5+ Kc6 Qc3+ Qc5 Qd6+ Kb7 Qde7+ Qc7 Qed6 Qg3 Qdc5 Qf3
qn1bqn2/3N1BN1/B1Q2BQ1/1Q1bBbn1/K4p2/3P1q2/1R2kb2/2n1rb2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Nh3 f4 Ng1 dxc6 Na3 c5 Nb1 c4 a3 Ra5 a4 Rf5 gxf5 b5 Ra3 Qd7 Rd3 Qd8 Rd6 h6 Rg6 h5 Rg4 hxg4 h4 Kd7 e4 Kc6 h5 Kc5 f6 Kd4 d3 g5 Kd2 c5 Kc2 g3 e5 c3 Kb3 c2 f7 c4+ Kb2 f2 h6 c3+ Kb3 g2 a5 g4 a6 g3 h7 Ne7 e6 Qe8 a7 Ng6 a8Q Be7 f8B Bd8 e7 Bf5 Bd2 c1Q Rh6 c2 Na3 Qa1 Be1 Ke3 Bg7 Nf8 Ne2 g1N Bg2 f1B Rh2 Nf3 Nd4 Ng5 Bb7 g2 Be5 g1B Ba6 Bf2 Qg4 Qd1 Qag2 Qf3 Ne6 Ke2 Nc4 Rg8 h8Q c1N+ Kb2 b3 Ka3 b2 Nb6 b1B B1c3 Bc2 Qhh5 Bb3 Ng7 Bd5 Nd7 b4+ Ka4 b3 Bf6 b2 Bce5 b1Q Qh1 Ngh7 Qgg6 Qb7 Qhg5 Qa8 Rg2 Qf7 e8B Qe6 Q5h5 Ng5 Bf7 Qe8 Q1h3 Bfe4 Qe6 Bf5 Qc6 Rh8 Qg4 Rh1 Qb5 Bfe4 Qe6 Bf5 Rh2 B1h3 Qeb6 Re1 Q6c6 Bf1 Qb4 Kd1 Ba1 Bc5 Bae5 Bcb6 Rb2 Bf2 Rb3 Ke2 Qbb5 Bfe6 Rb4 Bf5 Rb2+
4rB1B/N2qp2k/B1N1nnP1/1K6/Bn1qnb2/3Q4/2R1nQ2/1rrn1Nr1 b - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 a5 b4 axb4 f5 c5 a3 cxd4 Be2 g6 Bf1 g5 g4 b6 a4 Ba6 Ra3 Bg7 Rf3 Qc7 Rf4 gxf4 h3 Be2 g5 Bg4 hxg4 Bf8 Ba3 Qc8 Bc1 Qd8 Kd2 Kf7 c4 Kg7 c5 h5 g6 d5 a5 b5 c6 f3 a6 e3+ Kd3 f2 a7 b3 c7 h4 c8B b2 Qe1 b4 Rh2 h3 Qe2 b3 Qc2 e2 Be3 e1N+ Ke2 d3+ Kd2 d4 Nf3 Nd7 Na3 b1R Qa2 b2 Ne5 Rc1 Nb5 b1R Nc6 Nc2 Ba6 Nb4 g5 Nc5 Bf4 Qd7 Be5+ Nf6 Qb3 Re8 a8N Rh5 Nac7 Ne6 Nd5 Rh8 Rg2 h2 Ne3 h1N Nba7 Ng3 Qa2 Kg8 g7 Kh7 Be2 f1Q Bd1 Ne2 Ba4 Qf2 Qb3 Rg1 Nf1 Rc8 Nb8 Rcc1 Nbc6 Nfd5 f6 Rg8 f7 Nf6 Qc2 Qh4 Qd1 Qe4 Ke1 d2+ Kf2 d3 Ba1 Qf5+ Ke3 Qfd5 Qe1 Rh8 Qf2 d1N+ Kd2 Qd4 Bc3 Kg6 g8Q+ Bg7 Qd8 Re8 f8B Kh7 Ba1 Ndc3 Bb2 Qg4 Ke3 d2 Ba1 Nbd5+ Kd3 Nce4 Bc3 d1N Kc4 Nb4 Kb5 Nfd5 Bb2 Be5 Ba1 Bf4 Bh8 Qc8 Qd6 Ndf6 Qd3 Qd7 Qe1 Ng3 Rc2 Ne2 Qf2 Qh4 Qff3 Qf2 Qg2 Qe3 Qf2 Qed4 g6+
qrq1r1q1/P3r2q/1n1qN3/4b2B/q1BQ3B/2p2B1R/2nQQ2r/1K1N1k2 b - - 0 1 illegal: No possible last move, all moves rejected
2r1qB2/3R3Q/2QR1Q1K/b7/rn1p1N2/rr1BRnqk/2Q2n1P/q3q1n1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h5 Qd2 b6 Nc4 f4 Ne5 Bb7 Qd3 Be4 Qd1 Bf5 gxf5 Ne7 Ng4 hxg4 Bg2 Ng8 Bh3 Bd6 Bf1 Bf8 Kd2 Ke7 e4 Kf6 c4 Kg5 a4 Kh4 a5 d5 c5 g5 c6 b5 e5 b3 a6 b4 a7 f2 c7 f3 c8Q g3 f6 g2 e6 g4 e7 d3 Ke3 d4+ Kf4 b2 e8Q b1R f7 g3 Ra3 d2 Rb3 Nh6 Qcc6 Na6 Rd3 b3 Qc5 b2 Be2 f1R Qda4 d1N Qe6 f2 Qaa2 Qe8 Qee5 Nf5 Qc2 Nb4 Nh3 g1N Qee6 g2 Re3 Bc5 f8R Bb6 Qd7 Ba5 Rf7 Ra1 Qdc7 b1Q Qe6 Ra4 Bd3 Qa1 Ba3 Re1 Rd7 f1Q+ Rf3 Qe2 Re3 Nf2 Qed6 Rc8 a8Q Rb1 Qac6 Qe1 Qe6 Rb3 Qf6+ Kh5 Re6 Nh4 Red6 Nhf3 Qa7 Rg8 Kf5 Rg3 Qab7 Ng5 Nf4+ Kh4 Qbc7 Q8e5+ Kg6 Qe8+ Kh6 Re3 Qe4 Kg4 Qh7 N5f3 Ne6 Kh3 Q7c6 Ne2 Rf1 g1Q Nf4+ Kg4 Qa6 Qg3 Qac6 Neg1 Bc4 Qd2 Re1 Rec3 Re3 Qde1 Ne2 Kh3 Bd3 Na6 Bc5 Nb4 Nf4+ Kg4 Rde6 Rba3 Bf8 Rcb3 Qff7 Kh4 Red6 Kg4 Qff5+ Kh4 Qf6+ Kg4 Ne2 Kh3 Nf4+
3R2b1/N2nB3/n3q2R/2b3P1/1qr2Nn1/5pbq/KR1Nb1QQ/Rnk4q b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 fxe4 f5 c5 Na3 cxd4 Nb1 g6 h4 b5 g4 Ra3 f6 Rh3 g5 Rd3 Bh3 Nc6 Bf5 gxf5 g6 Nb8 Nc3 Rg3 Nb1 Rg5 hxg5 Bb7 Nd2 Ba6 Nb1 Bc8 Kd2 d5 a4 Kd7 c4 Ke6 Kc2 Ke5 Kb3 h5 c5 e3 a5 Kf4 g7 e5 c6 h4 a6 h3 f7 h2 a7 d3 a8Q e4 c7 d4 Bd2 Bc5 f8R Rh4 Qa7 Be6+ Kb2 b3 c8R b4 Nc3 Nf6 g8N Na6 Ra5 Nd7 Ka1 b2+ Kb1 Qe7 Rcd8 Qh7 Nf6 Bg8 Be1 d2 Ra2 e2 Rc8 Ke3 Qa8 f4 Ra5 f3 Na4 d3 Qb3 d1B Qbd5 d2 Ka2 b1N Nc3 b3+ Ka1 b2+ Ka2 Qh8 Bg3 e1B Qb8 Be2 Nb5 d1N Rfd8 Nf2 Bd6 Ng4 Na7 Bg3 Nh3 Qh6 Qdb3+ Kd2 Nf4 e3 Be7 Qh8 Rc6 Qh7 Rc1 h1Q Rc2+ Kd1 Rd2+ Kc1 Ne4 Qh3 Rh6 Qf7 Qd5 Qe6 Bf6 Bd1 Qd6 e2 Be7 e1Q Rf2 Qb4 Nd2 Be2 Qe5 Bf1 Rh2 Bd3 Qe2 Bb5 Qg2 Be2 Qg1+ Bd1 Nf1 Qbe1 Nh5 Nf2 Ra3 Rd4 Nf4 Ng4 Re2 Nd2 Qh2 Rc4 Rf2 Q1e3 Rb3 Qe2 Rg2 Qf2 Rb7 Qg1 Qd4 Qh1 Qf2 Kc2 Rg1 Be2 Qfg2 Kd1 Rb4 b1Q+ Ka3 Qd3+ Ka2 Qc3 Rb2 Qb4 Nb5 Nb1 Na7 Na3 Rb1+ Kc2 Rb3 Kd1 Nd2+ Kc2 Ra1 Nb1 Rb2+ Kd1 Nc6 Kc1 Na7
1R1BQ2b/2KP2q1/N1n4r/3B2n1/nk2bB1N/3r2rp/q2pq2N/N3Q2b b - - 0 1 illegal: No possible last move
1q1nK1QB/4bB2/3b2Qn/5r2/r1b4N/kpp1r1RR/3PB2n/3Qn1nQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Nc3 exf6 Ne4 f5 Ng3 f4 Ba3 fxg3 Bb2 Ra4 Bc1 Ra8 e4 Kd7 Ke2 Kd6 Kf3 Kc5 Kf4 b5 Ke5 f5 a4 g5 h4 g4 d6 f4 a5 f3 a6 b3 d7 Kb4 Ke6 c5 Kf7 f2 e5 b2 a7 b1R e6 c4 e7 c3 e8Q Ba6 h5 Bd6 h6 Nc6 h7 Nh6+ Ke6 Qb8 d8Q Rf8 Kd7 Rf5 Qc7 Nd8 Bc4 f1N h8Q Nh2 Nf3 g1N Qc6 g2 Bf7 g3 Nh4 Ngf3 Qeg8 g1N Ke8 g2 Qhg7 Be7 Qgg6 Ne1 Ra5 Ra1 Qcf3 Ra4 Qd5 Nf1 Rh3 Nh2 Qdc6 Ne2 Qd5 g1B Qh1 Bgc5 Rg3 Ng1 Rh3 Qd6 Bb2 Rc8 a8B Qb8 Bf3 Bcd6 Be2 Rc4 Bc1 Re4 Bb2 Re3 Bc1 Bb7 Ra8 Ba6 Ba3+ Ka5 Bc5 b4 Bd4 b3 Bh8 Kb4 Ra7 Ka3 Rb7 Bc4 Rb4 Bd3 Rg4 Bc4 Rgg3
k1N2bb1/1R2r1R1/7b/3rBpQ1/R1nBR1qp/6r1/b1n2Pn1/1B2b1QK b - - 0 1 legal: proof: b4 c5 a4 d5 e4 b5 axb5 cxb4 Qf3 dxe4 Qg4 Bd7 Qd1 Bc8 h4 g5 Rh2 gxh4 Rh1 a5 Nc3 b3 Na2 Qd6 Nb4 axb4 Ra4 Qd5 Ra1 Qd8 g4 Kd7 d4 Kc7 c4 Kb7 d5 h5 d6 f5 g5 e5 b6 b2 c5 b1N d7 h3 g6 h2 g7 e3 Bb2 h4 Ra5 b3 Qh5 e4 Ra4 e2 Rc4 Qg5 d8R Ra3 c6+ Ka8 c7 Ne7 g8R Be6 c8Q Qg4 Qh6 Rh7 Rd2 Ng6 Nf3 Re7 Rdd4 Nf4 Qg5 Nd2 Rg7 Bg8 Ne5 Ra5 Nd7 Rd5 Qc5 Na6 Ra4 Nc4 Rg1 h1R Rf7 Na3 Qc1 Rh3 Qb1 Nc4 b7+ Ka7 b8B+ Ka8 Rh7 Rg3 Be5 Bh6 Ba1 b2 Qc1 b1B Nb6+ Ka7 Bg2 Ba2 Nc8+ Ka8 Qd1 Re6 Rb7 Re7 Na7 Nb4 Nc8+ Na5 Rc4 Bf8 Bad4 Nc2+ Kd2 Bh6 Bf3 Ng2 Qa1 e1B+ Ke2 e3 Kf1 Rc5 Be4 Bb4 Bd3 Rd5 Qe1 Na3 Bb1 Nc2 Qc1 Nf4 Rg2 e2+ Kg1 e1B Kh1 Bd6 Ba7 Bdb4 Re4 Nc4 Qd1 Re8 Qc1 Bbf8 Rg1 Re7 Rg2 Bd2 Qg1 Be1 Bad4+ Na5 Rbb4 Rf3 Bb8 Qh5 Qg7 Ra3 Rg5 Ng2 Bbe5 Qg4 Rb7 Rg3 Qf6 Re3 Rg7 Rg3 Rab4 Nc4 Qg5 Rc5 Ra4+ Ra5 Na7 Rd5 Nc8+
1nK1b3/Qn2q2B/N1N5/QqQQ2Rq/1P1bqp1r/q1p2B2/r4k1B/7r b - - 0 1 legal: proof: b4 d5 a4 b5 g4 h5 f4 hxg4 c3 g3 f5 g2 c4 dxc4 axb5 e6 Ra6 exf5 Ra3 f4 Rg3 fxg3 h4 Kd7 d4 Ke6 Kd2 Kd5 Ke3 f5 Kf4 g5+ Kf3 a5 h5 c5 h6 g4+ Kf4 a4 b6 a3 b7 c3 h7 c4 Nd2 a2 Ngf3 g1Q Ne5 a1Q Rh5 c2 Nb3 g2 Nc5 c3 Nc6 g3 Rg5 Qh2 Na6 g1R Bg2+ Kc4 Ke5 f4 e4 Qa4 d5 Bd7 d6 Qh5 Bf3 g2 Be3 Rh1 Bg1 c1Q Bh2 Be8 Ke6 g1Q d7 Bg7 e5 Qge3 Qd2 Qc7 d8Q Nf6 Qf2 Qd4 Qd5+ Kd3 Qfa2 Qb5 Qa5 Ke3 Qc5 Rg8 h8Q Qa3 Qh7 Nfd7 Qe4+ Kf2 Qed5 Rf8 Ke7 Rh8 e6 Qd6+ Kd8 Qe7+ Kc8 Qe3 Rg6 Bd4 Rg5 Qd6 e7 Qe4 Qcb6 Nc5 Qa7 Bg6+ e8B Qde7 Q7b6 Rh6 Bf7 Ra7 Bg8 Be8 Bh7 Nbd7 b8Q Nb7 Qa8 Nb8 Qc7 Qh3+ Qcd7 Rh4 Q7f5 Qg4 Qc5 Qh5 Qfd5 Qf1 Qad8 Qb3 Nc7 Ra2 Qaa7 Qb5 Na6 Qa3 Qa5
8/2q1Rb2/bN3BQb/nppRqn2/1r1P1n1Q/4Qb2/2R1b3/K1Rr1kN1 b - - 0 1 legal: proof: b4 d5 h4 a5 c4 axb4 cxd5 g5 f4 gxh4 e3 e5 a3 exf4 Bd3 Nf6 Bc4 Ng8 Ba2 b3 Qh5 bxa2 Qe2 Ra4 Qd1 Ra8 g4 Ke7 a4 Kd6 a5 Ke5 d3 f5 Kd2 b5 Kc3 c5 Kb2 h5 a6 h3 a7 h2 e4 Kd4 d6 f3 e5 f2 e6 f1N e7 h4 e8R f4 g5 f3 d7 h3 g6 f2 g7 Ne3 Nc3 f1B Bd2 Ng2 Qe1 Ne7 g8R Qc7 Bg5 Be2 Ne4 Nbc6 Qf1 Na5 Bh4 Ke3 d8Q Ba6 Nd2 Nf4 Qc1 Bh6 Bf6 Kf2 Rg5 Nf5 Re7 Rh7 Qh8 Rd8 a8Q Rg7 Rh5 Rg4 Qc6 Rd5 Rb1 Kg2 Nc4 a1Q+ Kc2 Rh4 Qe3 Qae5 Rb2 Kf1 Kb1 Rd4 Nb6 Rb4 d4 Rg4 Qca8 Rg3 Qc3 Rd3 Qc6 Rd2 Qe3 Rd1+ Ka2 Rd3 Qg7 Nd6 Nd5 Ke1 Qg4 Qe4 Nb6 Rd2 Rd5 Qe5 Bg7 Rd3 Qef3 Rd2 Qc3 Nf5 Nf3+ Kf2 Rc1 Rd1 Qe3+ Kf1 Qh4 h1B Ka1 h2 Qg6 Bg2 Rd6 h1B Ng1 Bd5 Rc2 Bhf3 Bf6 Bf7 Rd5
6R1/3KNb1R/5R2/Pn3N1Q/bBkQrp1Q/bq1p2r1/2nn4/2n1q1Rn b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 Bh3 exf4 gxf5 h5 Bg4 hxg4 Kd2 Kf7 Kd3 d5 h4 g5 e4 b5 a4 g3 c4 g4 f6 Ke6 c5 g2 a5 b3 c6 b4 h5 g3 e5 b2 c7 b3 f7 Nh6 Ra3 Na6 Ra1 Rg8 Qe2 Ba3 f8R Nb4+ Kd2 d3 Kc3 d4+ Kc4 d2 Kb5 Kd5 e6 d1B e7 d3 e8R Nf5 h6 Nc2 h7 Be6 h8Q Bf7 c8Q Qb6+ Ka4 Qb8 Nd2 b1N Nc4 b2 Qeh5 Nd2 Ne2 b1N Nd4 g1Q Ne5 g2 Qc3 Rg3 Nec6 Qe1 Q8h6 g1N Ne7+ Ke5 Q6g5 Ne2 Qgh4 Ra7 Bb2 Nc1 Qc4 Ra6 Bc3 Re6 Bb4 Ke4 Rd8 Ke3 Rd6 Re4 Rg8 Qb7 Rh3 Qd5 Qc5 Qb3+ Kb5 Nc3+ Kc6 Nb5 Rh1 Rg1 Qc4 Ng3 Kd7 Rg2 Rg1 Nh1 Rf6 Rg3 Qc3 Re6 Ndf5+ Ke4 Nc6 Kd5 Qe5+ Kc4 Nce7 Rh3 R1g7 Rg3 Qe3 Re5 Rh7 Re4 Qh6 Qa2 Bc3 Ncb3 Rd8 Qf2 Kc8 Ne1 Kd7 Bc2 Rd1 Nc1 Bb4 Ba4 Rg8 Nc2 Q6h5 Qb3 Rg1 Qe1 Qd4+
5b2/3b3b/1K3k1p/RNQ1qrB1/2rp1BB1/2b2n2/1B1rnP1Q/Rb2qQ2 b - - 0 1 illegal: No possible last move, all moves rejected
1nR2R2/B1n4Q/1n1R1P2/2Q1rBkQ/n2Qpr2/1qn3Nr/1b1Kp2b/q7 b - - 0 1 legal: proof: d4 c5 g4 cxd4 f4 h5 e4 hxg4 f5 b6 Nd2 a5 b4 axb4 Ndf3 Ba6 Ng5 Bd3 Ne6 fxe6 f6 e5 Ne2 Bc4 Ng1 Be6 Rb1 Bf5 exf5 e4 Ra1 Ra5 Bh3 Ra3 Bf1 Ra8 a4 Kf7 c4 d5 h4 g5 c5 e5 h5 b3 c6 b5 h6 b2 h7 b1N a5 e3 c7 b4 c8Q b3 a6 g3 a7 d3 Ra4 d2+ Ke2 g2 Qc3 d4 Qc8 d3+ Kf3 b2 Re4 e2 Ke3 g4 Rh4 g3 Qdc2 d1Q Rc4 e4 Qc7+ Ne7 Nh3 g1B+ Nf2 g2 Rf4 d2 Rc6 Na3 Qb6 b1N Qa2+ Qd5 Bb2 Bg7 Bc1 Bh2 Rd6 g1R Bh3 Nb5 Nh1 Rf1 Qaa5 Nc8 Ng3 N1c3 Qd4 Na4 Bb2 Re8 h8Q Re5 Qh7 Ncb6 Ba3 Qe1 Bc5 Qa1 Bg4 d1N+ Kd2 Nc7 Rf2 Kf8 f7 Ke7 f8R Ndc3 Rc8 Qe6 Qb5 Kf6 Qe8 Rg1 Qeh5 Rg2 Rf1 Rf2 Bh3 Rf4 Rf2 N8d7 Rf3 Rb8 a8Q Rb7 Qa5 Nb8 Qdb4 Ra7 Bf2 Bh8 Qac5 Ra6 Qbd4 Ra8 Rdd8 Qb3 Rd6+ Ne6 Qdc4 Ncd5 Rc3 Qb4 Rcd8 N6d7 Nh1 Nb2 Bd4 Ra3 Qc6 Na4 Ba7 N7b6 Qf3 Kg5 Rf8 Qbb1 Rc1 Re3 Qd3 Qb3 Qcb5 Bf6 Rcc8 Nec7 Qc5 Re7 Qdc3 Bd4 f6 Re5 Qd3 Bb2 Bf5 Ndc3 Qfh3 Rg3 Qdd4 Rgg4 Qf3 Rh4 Ng3 Rh3 Qfh5+
nb1b2b1/R3kN1B/3Pr3/Q1Q4q/KB3qq1/3pN1nb/1b1QpN1r/2N5 b - - 0 1 illegal: No possible last move
n1R2qB1/1qR2B2/pp1nQ3/1N1b1Q2/k5K1/4P3/2r1Q1Bq/b1Q1rqqb b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 b6 gxh4 b7 Na6 b8Q Qg5 Ra5 Qf6 Ra1 Qd8 b4 d5 c4 Qf6 b5 Ba3 b6 Bb2 b7 Bc3 Na3 Qd6 Bb2 Bb4 Bd4 Qd8 Bb6 Bf8 c5 cxb6 Nc4 dxc4 Kf2 Kd7 Kf3 Kc6 g4 Kb5 d4 f5 e3 h5 c6 h3 d5 h4 g5 h2 c7 h3 g6 Qd7 d6 Nh6 g7 Nf7 g8B Bg7 Rc1 Ba1 Qe2 Ka4 Bh7 c3 Bg8 c2 Rd1 c1Q Kf2 f3 Kg3 f2 Re1 f4+ Kf3 Qd1 Bg2 f1Q+ Ke4 f3 Kf4 f2 Nf3 Rh5 Nd4 Rc5 Nb5 Rc2 Kg3 Qc6 d7 Nd6 d8Q Be6 c8B Bd5 Qg5 Nc7 Bce6 a6 Rg1 h1Q Qf5 h2 Qe8 Rc8 b8Q Na8 Kg4 Qb7 Bef7 Rc1 Qee6 R8c2 Qc7 Qd2 Bf3 Rd1 Rg3 Qhg1 Bg2 h1B Qcc8 Qc1 Rh3 Qh2 Rh8 Qa3 Rh7 Qfg1 Rg7 Rb1 Rc1 f1Q Qc3 Qc5 Rh7 Qcc8 Rh8 Qf8 Qcd2 Rcb2 Rc7 Re1 Qc1 Rc2 Bh7 Qfh6 Rhc8 Qf8 Bhg8
NKN1BN2/rR3P2/1p3B1q/p4r2/2Br1nbN/2b1r3/rnkb3Q/4qQ2 b - - 0 1 legal: proof: b4 f5 c4 d5 h4 g5 e4 gxh4 b5 fxe4 a4 Bd7 cxd5 Bc8 a5 Bd7 b6 axb6 a6 Bc8 Ra5 bxa5 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 h5 f4 e5+ d6 e3 d4 Ke4 g4 b6+ Kb5 c5 d7 e2 g5 e1Q f5 c4 f6 h3 g6 h4 a7 h2 g7 c3 f7 c2 d5 h3 d6 Rh5 Bf4 c1B Be3 Nf6 g8B Rf5 Bc4 Na6 Kc6 Nd5 Bd4 Nf4 Bh7 Bg7 Nf3 Qg5 d8N Nb4+ Kc7 Nbd3 d7 Qh6 Nh4 Nb2 Na3 Bd2 Ne6 Bf6 Rg1 h1R d8Q h2 Rg8 Rf1 Rh8 h1R Qd6 Rh2 Nb5 Rf3 Qa1 Rd3 Nf8 Bg7 Bc3 Rd4 Bg6 Rg2 Bh5 Ke3 Bd1 e4 Ba4 Re2 Qe5 Bf6 Nd6 Rh2 Be6 Kd3 Be8 e3 Bc4+ Kc2 Rg8 Bd7 Nc8 e2 Qd6 Qg3 Qg1 e1R Qf1 Re3 Kb7 Qe1 Rh8 Rdd3 Be5 Bg7 Bf6 Rd4 Kc7 Rb8 a8N Rb7+ Kd8 Ra7 Qe5 Ra6 Kc7 Ra7+ Kb8 Bb5 Ba2 Be2 Bc4 Bg4 Rg8 Ra3 Qee2 Rhh3 Qef2 Rhe3 Qh2 Bh8 Rg5 Ra2 Rh5 Rfd5 Re5 Rc5 Re6 Rf5 Re7 Rde4 Bg5 Bc3 Bf6 Rd4 Rb7
r1rQNq1k/r3p1qb/Q1BP4/2b3nB/q2Rp3/2n3N1/1B3q2/1q1B1N1K b - - 0 1 legal: proof: h4 c5 c4 d5 a4 f5 e4 fxe4 b4 g5 Ra2 gxh4 Rc2 b5 axb5 cxb4 c5 Qd7 Rc3 Qd8 Rc4 dxc4 g4 Kf7 f4 Kg7 Kf2 h5 Kg2 a5 d4 h3+ Kh2 Ra7 c6 c3 b6 a4 g5 h4 d5 a3 d6 a2 f5 a1Q c7 b3 g6 b2 b7 c2 Ne2 Na6 b8N Nb4 Qd3 Na2 Be3 c1R Qa6 Nh6 Nd7 Nf7 Nd2 b1Q f6+ Kg8 Bb6 Bg7 Bd4 Qc2 Bg2 Qa4 Bf3 Ng5 Rd1 Rc3 Kg1 h2+ Kg2 Qe8 Bh5 Qf7 Nf1 h1Q+ Kf2 Qh3 Kg1 Qe3+ Kh2 Rc2 Rd2 Qb1 Bb2 h3 Rd5 Qc3 Rd2 Qe8 Neg3 Qe5 Kg1 h2+ Kg2 Rc4 Rd3 Nc3 Bd1 Bb7 c8B Bd5 Bb7 Be6 Ba8 Bf5 Bb7 Rc7 Bc6 Ra8 Rd2 Rca7 Rd5 Nf3 Rd2 Bh6 g7 Be3 Rd3 Bc5 Rd4 Ng5 f7+ Kh7 f8Q Qf7 Qfc8 h1Q+ Kf2 Qh3 Kg1 Qh6 g8B+ Kg7 Bh5 Bh7 Kh1 Qf2 Bb3 Qef5 Qc7 Rhc8 Nf6 Kh8 Bd1 Qg7 Ne8 Qff8 Qd8
8/2P1B2Q/2Bb1K1Q/1n1N1n1b/r4q2/1Nr1p2B/bpbq4/R1nQb1Qk b - - 0 1 legal: proof: f4 a5 b4 axb4 d4 c5 e4 cxd4 a4 f5 g4 g5 Ra3 h6 Rg3 h5 exf5 gxf4 g5 Ra5 Rg2 Ra8 Rg4 hxg4 Kf2 Kf7 c4 e5 h4 d5 g6+ Kf6 c5 b5 c6 e4 g7 Ke5 c7 f3 Kg3 f2 a5 b3 h5 b4 h6 d3 a6 d2 f6 d4 Kh4 Kf4 a7 d3 h7 g3 Qe2 g2 Nf3 g1B Rh3 b2 Na3 b1N Qd1 b3 Bb2 Ne7 g8B Nc3 f7 Nd7 Nc4 Nf5+ Kh5 Bd6 Kg6 Nc5 f8Q Nb5 Rh4+ Kg3 Qf6 Be6 Qa1 d1B Rh5 d2 Nd4 Nd3 Bh3 Kh2 Ba3 f1Q Nb6 b2 Nd5 Bf2 Nb3 Bc2 Qd1 Nc1 Kg5 Qd7 Qh6 Kh1 Kf6 Be1 Rh4 e3 Ra4 Qf4 Ra5 Rb8 a8Q Rb6 Bc5 Rc6 Ra1 Bf7 Bb4 Rc3 Qaf8 Bh5 Qfg7 Bb1 Bf7 Ra8 h8Q Ba2 Q8h7 Ra5 Be8 Ra4 Qc2 d1B Qd3 Bf8 Be7 Bc2 Qd1 Qd8 Bc6 Qd7 Nb6+ Qd5 Qg3 Qg2 Nd5 Qd2 Bd8 Bb4 Be7 Bd6 Qg1+
B1b2b1b/K1PQ1B2/3Q1b1B/1q1p1Q1r/n3N2N/2nqRr2/Q2p1kq1/2b5 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Kg4 b6 a5 Kb5 g5 c4 f5 b7 d3 c5 f4 e4+ f3 h5 a4 c6 a3 h6 d2 c7 a2 Kb6 a1B e5 Na6 b8Q Nf6 b5 Ne4 e6 Nac5 e7 Nc3 e8B Ra3 h7 N5a4+ Ka7 d6 Qb3 f2 Bc4 f1Q Nf3 g1Q+ b6 g2 Bd5 Kg3 Nh4 Qb5 Rh3+ Kf2 b7 Qh1 Be4 g1B Re3 Qg2 Bf7 Bh2 Bf3 Be5 Qa2 Bf6 Qa8 Qdd7 b8Q Qdf5 Q8d5 Qfd3 Qb6 g4 Qf5 g3 Bb2 Rb3 Ba3 Bb2 Bc5 Bc1 Ba8+ Qf3 Qa6 d5 Qd6 g2 Bd4 g1B Qdd7 Bd8 Bg7 Bf6 Bh6 Bh2 Qd6 Bhe5 Qdd7 Rg8 h8Q Rg5 Qhh7 Rh5 Qd6 Bh8 Qfd7 Bef6 Qe4 Qg2 Qee6 Rb4 Qg4 Rf4 Qgf5 Ne4 Nc3 Rf3 Ne2 Nec3 Ng3 Kg1 Ne4 Kf1 Nc5 Kf2 Ne4+
2n5/1p1BrP2/Bp1R2q1/4BNQ1/1q1b1r2/Nkn1n3/N2Knq2/B1Qn2b1 b - - 0 1 legal: proof: d4 c5 g4 cxd4 e4 f5 b4 fxe4 f4 Nh6 b5 Ng8 b6 axb6 a4 h5 f5 d6 f6 Bf5 gxf5 Rh6 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 c4 Kd7 h4 Kc6 c5 Kd5 a5 e5 f7 g5 f6 e3 c6 e4 h5 e2 h6 Kc4 c7 d3 c8B d2+ Kf2 d5 Ke3 g3 a6 g2 a7 d4+ Kf2 g4 h7 e3+ Kg3 d3 Kf4 e1Q Ne2 g1N Ng3 e2 Ke3 Nh6 Rh4 Qf2+ Ke4 e1Q+ Ne2 g3 Rh1 g2 Bd7 Bg7 f8N Ng4 f7 Bd4 Bb2 Qdf6 Qc1+ Kb3 Na3 d1N Ba1 d2 Kd3 Nc3 Ng6 d1N Rh6 Nc6 Ne7 Qg6+ Nf5 Rae8 a8Q Na7 Qd8 Nc8 Qdg5 Rhg8 h8B Re7 Be5 Nge3 Ng3 Nge2 Ne4 Na2 Nc3 g1B Ncb5 Qa5 Nc3 Qb4 Kd2 Rh8 Rh2 Rh3 Rh1 Rf3 Rh6 Qh7 Rd6 Rf4 Bg2 Qh5 Be4 Qh7 Bd3 Qg6 Ba6 Qc5 Nd5 Nac3 Nb4 Qc4 Na2 Qa4 Bb2 Qb4 Ba1
1qq5/1pqNBpb1/2B5/bqn1Nn2/1kB1PN2/1rQr2Q1/1B1b2K1/R3q3 b - - 0 1 legal: proof: g4 c5 f4 d6 h4 Nf6 b4 Ng8 a4 e5 d4 cxd4 h5 exf4 h6 a5 Ra3 axb4 Rg3 Bf5 Rg2 Bg6 Rg3 Bh5 gxh5 Qd7 Rg2 Qd8 Rg6 hxg6 Kf2 Kd7 c4 Kc6 e4 Kc5 h7 f3 a5 g5 a6 d5 a7 g4 h6 g5 Rh3 d3 Be3+ d4 Qc2 g3+ Ke1 g4 Nd2 g2 Kf2 g3+ Ke1 b3 Rh4 f2+ Kd1 b2 Nb1 d2 Ke2 Nd7 Kf3 d1Q+ Be2 f1Q+ Bf2 Qc7 Qb3 Qc2 Nd2 b1Q Rh1 Qfe1 Nh3 g1B Kg2 Rd8 a8N Ne7 Nb6 Bg7 Nf3 Nf5 Ne5 Bh2 Qf3 Kb4 c5 d3 c6 d2 Bc4 d1Q Nf4 Nc5 Nbd7 Qdd6 Qd3 Rhg8 h8Q Qc8 h7 Qdb8 c7 Qbb2 Kh3 g2 Bh4 g1B Qg3 Be3 Be7 Bd2 Rf1 Bg1 Kg2 Bd4 Rh1 B4c3 Rf1 Bf8 Qf6 Bg7 h8B Qbb3 Qc6 Qa4 Rh1 Qb5 Rg1 Qe3 Ra1 Qe1 Nf8 Rd3 Nfd7 Qd8 c8B Qdc7 Nf6 Rgd8 Bd7 Rf3 Be8 Rdd3 Nfd7 Qcc8 Qa6 Rd6 Be2 Nd3 Neg6 Bgf6 Nb6 Kc5 Qa4 Ba5 Qb3 Qcc4 Qc2 Kb4 Bd7 Q4c7 Bc6 Be5 Nd7 Nc5 Bc4 Rb3 Bg7 Rdd3 Bgf6 Bd6 Bb2 Be5 Qc1 Bf6 Nge5 Bg7 Qc3+
2b1Qn1R/b3R1r1/1bN2b2/Bk1B1r2/2BpbP1b/3b3p/1B2Q2K/1R1q3n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 h5 g5 h6 Qa5+ Nd2 Qa2 Ndf3 Qb1 Nh4 gxh4 Qd3 Bxh6 Qd1 Bf8 g4 h5 c4 a5 b4 e5 f4 d5 Kf2 Kd7 Kg2 d3 g5 h3+ Kg3 d2 b6 Kc6 b7 a4 c5 a3 g6 a2 g7 h4+ Kh2 e3 Qf3 d1B Qf2 e2 Qe3 e1B Nf3 e4 Bc4 Nd7 b8B Nh6 g8B Bc2 Qa3 e3 Nd2 e2 Bb3 Nf5 Be6 Ng3 Bg8 Rh7 Bc4 Ra5 Qd3 Rg7 Nb3 Bf2 Bc7 e1B Qe2 Bd3 Bb2 Qd1 Rb1 a1B Be6 Rb5 Ba5 Be7 Rf1 Bd8 Bg8 Nf8 Nd4+ Kd7 Nc6 Bb6 Rg1 Nh1 Rg3 Kc7 Re3 Kb7 Re7+ Ka6 Ba3 Bf6 Bb2 d4 Bgd5 Ba7 Nd8 Bd2 c6 Bde1 c7 Bg3+ Kg1 h2+ Kg2 Bd2 Nc6 h3+ Kf3 Bb7 c8Q Bgh4 Qd7 Bc8 Qe8 Ng3 Kf2 Bc3 Kf3 h1B+ Kf2 Be1+ Kg1 Bhe4 Kh2 Nh1 Bb3 Rc5 Ba2 Kb5 Bac4+ Ka4 b5 Bc3 b6 Rb5 Be6 Rf5 b7 Bb4 b8R Bbc5 Bed5 Bcb6 Rbb7 Rgg5 Rh7 Rg6 Rh8 Rg7 Bb3+ Kb5 Re7 Ba6 Ba2 Bc8 Bac4+
3nnq2/rQ1qQ1R1/N3b3/4KNp1/b3RP1p/R4Br1/2Rq3r/2nNrk2 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Qd3 fxg6 Qd2 g5 Qd1 g4 h4 g6 h5 Bg7 h6 e4 hxg7 e3 Bd2 Ra3 Bg2 exd2+ Kf1 Ra4 Bh3 Ra8 Kg2 Nc6 Kh2 Ra4 Bf1 Nb8 Kg2 Ra8 Kg3 Ke7 Kf4 Ke6 c4 h5 e4 b5 a4 d5 f3 g5+ Kg3 Ke5 a5 b3 c5 d3 f4+ Kd4 a6 Ke3 e5 b2 c6 b4 a7 d4 e6 b3 c7 Nc6 e7 Qf8 e8R+ Be6 c8N Nd8 Nd6 Nf6 Nc3 b1R g8R b2 Qb3 d1B Qb8 d2 Nf3 d3 Nb7 Ba4 Rh2 d1Q Qc7 d2 Re7 Ne8 Kg2 g3 Ra3 Rc1 Bc4 b1R Nd4 Rb3 Nc5 Qg4 Bf1 d1Q Rgg7 Qd2+ Be2 Re1 Na6 Qgf5 Qd6 Qb5 Qb4 Qd7 Qc5 Rh7 Qb4 h4 Qd6 Rab8 a8Q Rb2 Qc5 R8b3 Qb7 Rc2 Ne4 Rb2 Nf2 Rc3 Bg4 Rcb3 Kh3 g2 Nd1+ Kd3 Nf5 Rc3 Bf3 g1N+ Kg4 Ne2 Qcb4 Nc1 Bg2 Ke2 Bf3+ Kf1 Q4e4 Qe3 Rc2 Qed2 Qe3 Bg8 Re4 Be6 Qc5 Rcb3 Bh1 Rh3 Bf3 Rb3 Qe7 Rh2 Rg6 Rf7 Rg7 Rc3 Bh1 Rch3 Bf3 Rg3+ Kh5 Rhe2 Kg6 Na2 Qeb4 Q7d4 Qd5 Ra7 Qe7 Nc1 Qdb7 Qd7 Qf7 Nd6 Kf6 Rh2 Ke5 Ne8 Qe7
RN1Q1r2/r1Q5/1r2p2q/5k1n/1n1NRB2/bb3b1P/1b1p3Q/n1qN1QK1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Be2 g5 Bf3 gxf4 g5 Ba6 Be2 Bc8 Bg4 hxg4 Kf1 Kf7 c4 Ke6 b4 a5 h3 d5 g6 d3 g7 e3 b6 f3 b5 d4 c5 a4 b7 f2 c6 d2 b6 a3 c7 g3 Kg2 f1R Qf3 d1B Qc6+ Kf5 Bb2 d3 Rh2 a2 Qe8 d2 Nf3 e2 Qc6 e1Q Bc1 e6 Ba3 Bb3 Bb2 Qc1 Qc4 Nc6 b8Q Qf6 b7 Ba3 Be5 Qh6 Nc3 Nf6 g8Q Nh5 Nd1 Ra7 Bf4 Nb4 Qd8 Rf8 Qe2 Bd7 c8Q Bc6 Qcc7 Re1 Qa6 Re3 Kg1 g2 Qe2 Re5 Qf2 Rb5 Qf1 Rb6 Nd4+ Ke4 Kf2 g1B+ Kg2 Bf2 Kh1 Bh4 Kg1 Bf6 Rg2 Bcd5 Rg4 Bc6 Qcd6 Bg7 Qbc7 Bh8 b8N Bcd5 Nf3 Kf5 Rh4 Bhb2 Nd4+ Kg6 Be3 Bc6 Qh2 Bg2 Re4 Bf3 Rb1 a1N Bf4 Qc2 Rc1 Qb1 Rc5 Qc2 Ra5 Qc1 Nb5 Kf5 Ra6 Rab7 Ra8 Ra7 Nd4+
1q1Qn1Q1/B6k/NP5r/1n4R1/KNbnr3/1rqNRqQ1/N3ppb1/1r6 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 fxe6 f5 e5 Be3 e4 Bg5 Qc7 Bc1 Qd8 h4 Nf6 g4 Kf7 g5 Ne8 Bh3 Nf6 Bg4 Ng8 f6 Ke8 Bf5 gxf5 g6 Bh6 Rh2 Qb6 Rh1 Bg5 hxg5 Qd8 Kd2 Kf8 c4 a5 Kc2 h5 b4 d5 c5 e5 c6 e3 c7 e4 b5 e2 f7 Kg7 f8N e1R b6 e3 Rh3 d3+ Kc3 a3 Kb3 f4 Rh4 a2 Ne2 f3 Nf4 d4 Na3 a4+ Kb4 f2 Rh2 d2 Nb5 d3 Na7 h4 Ba3 h3 Nb5 Nf6 Qf3 d1N Bb2 d2 Bc1 a3 Nc3 Rh6 Qg3 Be6 c8N Ne8 Rg2 h2 Nd3 h1B Nd7 Bc4 Na7 Nc6+ Ka4 Qb8 N7c5 Nd4 Na6 Re2 Rg1 Bg2 Nc6 Re1 Rb1 a1Q Ncb4 a2 Rb3 Kg8 g7 Kh7 Ba3 Qc1 Bb2 a1R+ Nca2 Rb1 Ba3 Qc3 Bc1 Kg6 Ra3 Ra7 g8Q+ Rg7 Qd5 Kh7 Qd8 Rb3 Bb2 Re7 Bc1 Re4 g6+ Kg8 g7 Kh7 Rh1 e2 Rh5 Rg1 Rg5 Rf1 Ne1 Qf3 Ned3 Nc3+ Ka5 d1Q Bf4 Ncb5 Ka4 Qc2 Bc7 Qc8 Bb8 Rfb1 Ba7 Qb8 Ndc1 R3b2+ Rb3 Qd2 Re3 Qc3 Ncd3 Rb3 g8Q+
1b2n1qB/NQ2N2p/N1r2B2/2N1b2r/Q1R3n1/pb2n2r/3P1Bb1/qk2K3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 f5 dxc4 e4 Nd7 b4 Nc5 Be2 Nb3 Bh5 Qd4 Ra3 Nc5 Rf3 Qd7 Rf4 exf4 e5 Qd8 e6 Nd7 e7 Nb8 Bf3 Kd7 Bd5 Bg7 Be6+ fxe6 Ke2 Bh6 Ke1 Bf8 e8N c5 g4 a5 g5 h3 f6 h2 f7 f3 g6 e5 b6 Ke6 b7 Kf5 b5 Ke4 b6 Kd3 g7 c3 Na3 a4 Qb3 f2+ Kd1 f1B Qa2 c2+ Ke1 c4 Bb2 c1Q+ Kf2 e4 Bc3 e3+ Kf3 e2 Kf2 e1N Nh3 Nc6 b8B Bd6 f8N Nf6 g8Q Bg2 b7 Ra5 Qf7 Nc2 Ng1 Be6 Ba1 c3 Nf3 Rh5 Ba7 Ne5 b8B Bb3 Nd4 Ne3 Nd7 c2 Nc7 Qg8 Nab5 Ne8 Nf5 a3 Ne7 Qd1 Na6 c1B B7d4 Rh3 Bba7 Bb2 Ndc5+ Kc2 Qd5 Qb1 Qb7 Bb8 Ke2 N5g4 Bf6 Rh5 Bb6 Rh3 Na7 Rh5 Rf1 h1R Rf4 R1h3 Rb4 Kc1 Ke1 B2e5 Bc3 Qa1 Rc4 Bd1 Qb3 Bc2 Bb2+ Kb1 Qa4 Bb3 Re4 Qf8 Bd4 Rg8 Bb2 Rg6 Rc4 Qg8 Bh8 Rc6 Bd4 Bh2 Bdf6 Bhe5 Ne6 Nd1 Bf2 Nde3 Nec5
K3B1NB/1n1rQpnQ/5n2/6r1/bq1Q2p1/b1Rq3B/q2B2P1/qR2b2k b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 Nc3 bxa4 Nd5 Qc7 Nf6+ exf6 h4 f5 f3 Qh2 e5 Bb7 h5 Be4 h6 Nxh6 fxe4 Ng8 Kf2 Ke7 Kf3 Ke6 c4 a5 b4 d5 b5 h5 b6 g5 c5 a3 b7 d3 c6 a4 c7 f4 c8Q+ Nd7 b8B d4 Be3 d2 Qdc2 d1B+ Qe2 d3 Qc7 a2 Nh3 h4 Nf2 h3 Bba7 d2 Beb6 a3 Nd3 Rh5 Bb8 Ra7 Nf2 Ba4 Qd3 d1N Qc5 Ne3 Qcc2 Nc5 B8c7 Nf6 Rc1 a1B Ng4 a2 Ba5 Nf5 Qd4 Nb7 Bd2 Ng7 Nh6 Ba3 Bd3 Bc3 Ng8 a1Q Rb1 Qb2 Rhc1 Qa2 Be2 Qg1 Qcd3 Ba5 Rc3 h2 Bd6 h1Q Be7 Nfe8 Bf6 Qc1 Qc2 Qcb2 Ba6 Qb4 Bb5 Nf5 Bh8 Nf6 Bc6 Ng7 Bd5+ Kd7 e6+ Kd6 e7 Qg1 e8B Qf1+ Qf2 Ke5 Be6 Qg1 Bh3 g4+ Ke2 f3+ Kd3 Rg5 Qd4+ Ke6 e5 Kf5 e6 f2 e7 Qc1 Qd1 f1Q+ Qe2 Qfd1 Qe1 Qcb2 Qh4 Qba1 Qh6 Bc7 Qh5 Bg3 Ke3 Be1 Qh6 Rh5 Qh7+ Kg5 Kd3+ Kh4 Ke3 Kg3 Kd3 Kh2 Ke3 Nd5+ Ke4 Rh6 Ke5 Rg6 Ke4 Nf6+ Ke5 Nc5 Kd6 Nb7+ Kc7 Rg5 Kb8 Qf3 Bb5 Qfd5 e8Q Kh1 Qe7 Qf5 Be8 Qd3 Qh6 Raa5 Qh4 Rad5 Ka8 Rd7 Qh7
2q3rb/1r1NP3/2QR3k/1R2B1r1/n1q1B2q/1Rb1p2p/3R1nr1/nQK1B3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 h5 dxe4 h6 c5 Qg4 c4 Qd1 gxh6 Na3 h5 Bd3 h4 Be2 Qa5 Bf1 Qd8 Ke2 e5 f3 e3 Nb5 e4 Nd4 Bf5 Nb3 cxb3 Ke1 e2 Kf2 Bd7 Ke3 Bc6 Kf4 e3 Kg4 Be4 fxe4 Ra7 Kf3 Ra8 d4 e1B Ke2 h5 c4 f5 g4 Kf7 a4 Kg6 d5 b5 g5 f4 a5 b2 e5 b1N a6 h3 c5 b3 e6 h2 c6 f3+ Kd3 f2 d6 b2 Kc2 b4 e7 h4 c7 Nc3 c8Q b1R a7 Nf6 d7 Rg8 Qc5 Na6 Bb2 Bg7 Nf3 Qc8 d8B Bh8 Ra2 Ng4 Bg2 f1Q Ba5 Na4 Be5 Rb2+ Kc1 b3 Qc6+ Kh7 g6+ Kh6 Qd3 Nb4 Qb1 Nf2 Ra3 Rb8 a8R Nc2 Ra6 Qc4 Rf1 Bc3 Rd1 h3 Rd2 Rb7 Rb6 Na1 g7+ Q4e6 Rb5 h1Q+ Bf1 Qh2 Bd3 Qf4 Be4 Qh4 Rd6 Rd2 Ra2 Rd5 Rd2 Rc5 Bh2 Rg5 Ne5 Rg2 Nd7 Rg5 Nf6 Qc4 Be5 Re8 g8R Rg2 Rg4 Rg8 Bc2 Rg5 Rgd4 Rg8 Be4 R2g5 R4d3 Rg2 Qc2 b2+ Kb1 R2g5 Qd1 Bb4 Rc2 Nh1 Rb3 Be1 Ka2 b1R Nd7+ R5g6 Ka3 Rb2 Rh2 Rf2 Qb1 Rf5 Rhb2 Rf2 Rc2 Rg2 Ka2 Nf2 Bac3 Nc5 Kb2 Bd2 Bb4 Be1 Kc1 Na4 Bc5 Ba5 Bcd4 Bb4 Bc3 Ba5 Be1 Bc3 Nf6 R6g4 Rcd2 R4g5 Nd7+
1R3bqq/1k1Qp1r1/RN2nQ2/2r2P2/1QN3RB/nQ1K1n2/3pr3/q4bq1 b - - 0 1 illegal: No possible last move, all moves rejected
1r1q2Q1/nQ1P3r/p1Bq1n2/2NBkp1b/2br1q1R/1N6/1KQ4b/3bQ1N1 b - - 0 1 legal: proof: g4 d5 c4 dxc4 f4 b5 a4 g5 b4 gxf4 g5 e5 g6 h6 Bb2 Qf6 Ra3 Qd8 Rf3 e4 axb5 exf3 Bf6 Na6 Bh4 Nb8 Bg5 hxg5 e4 Kd7 h4 Kd6 d4 c5 Kd2 a6 Kc1 c3 d5 f2 g7 c2 h5 c4 h6 g4 h7 g3 b6 f3 b5 g2 b7 Bg4 b6 f5 Nd2 Bh5 Ne2 g1R Qe1 Nf6 g8Q Ke5 d6 Nc6 b8Q Na7 b7 Rg4 Bg2 f1B Rh4 f2 Ng1 Be2 Kb2 f1B Nb3 Bd1 Qc7 Bh6 b8N Bf4 Qb7 Bh2 Bh1 Kf4 Nd7 Rb8 e5 c1Q+ Ka2 c3 e6 c2 e7 Qe3 e8B c1Q Ndc5 Ke5 Bec6 Rd4 d7 Bc4 Bhd5 Qd2+ Ka3 Qb4+ Kb2 Qbb6 Qg2 Qbc7 Qc2 Qd6 Qa5 Qf4 Qac3 Rf8 h8Q Rf7 Qg8 Rh7 Qe1+
2rn1R2/2Pb1QnN/R4pK1/NqQ1q1n1/8/B6p/qRR1bNb1/1q3k1r b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 a5 Bg2 axb4 Bf1 Be7 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Ra4 Rh5 Ra6 Rh1 Ra8 Kf2 Ke7 e4 Ke6 a4 Ke5 c4 b5 g7 h5 c5 d5 g6 h4 a5 d3 a6 Kd4 a7 b3 e5 d2 c6 Kd3 c7 f6 e6 b4 e7 d4 e8N b2 Nh3 b3 Qg1 d1N+ Ke1 f2+ Kf1 Nh6 Kg2 Ke2 g8R f1B+ Kh2 f3 g7 d3 Ra6 d2 Na3 b1Q Ra5 f2 Rf8 b2 g8Q Qd6+ Re5+ Ne3 Qf7 d1B Ng5 Bd7 Nc4 Bg2 Nh7 Qa2 Na5 b1Q Ba3 h3 Kg3 f1Q Kh4 Nc6 Kh5 Nd8 Rf5 Qe5 Nd6 Qbb5 Rg5 Nef5 Rh2 Ng7+ Kg6 Ke1 Rf5 Be2 Qc5 Rg8 Rf2 Rc8 a8R Qg1 Qe7 Nhf7 Ra6 Ng5 Qf7 Qh1 Ne4 Qf1 Rf3 Qh1 Rc3 Kf1 Rc2 Qg1 Qcc4 Qgb6 Nf2 Qbb1 Qfe6 Qb8 Qc5 Q8b5 Rf7 Re8 Rf8 Re7 Qf7 Re6 Nd1 Rd6 Nf2 Rd1 Ne4 Rc1 Nf2 Bh1 Qfd5 Bd1 Qf7 Ke1 Ng4 Bhc6 Rf2 Bg2 Rd2 Be2 Nf2 Qba1 Rb2 Q2b1+ Rdc2 Qaa2 Ng4 Rd1 Ne3 Kf2 Nc6 Rh1 Ng4+ Ke1 Na5 Kf1 Nf2
1R4qR/BKP1n3/pR6/Nk2q1Q1/pqrb1b2/n3r1QB/r4QR1/1b4q1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 e4 c5 a4 bxa4 Nd2 cxd4 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Qb6 Ng4 hxg4 Nf3 Qc7 Ng1 Qd8 Kf2 e5 c4 f3 b4 d3 Ke3 e4 Kd4 g3 Kd5 f2 h4 e3 g6 d2 b5 g2 b6 e2 b7 e1R f6 Na6 b8Q Bh6 h5 Nb4+ Kc5 Re3 g7 Nc2 Kd6 Ne7 c5 Na3 Ne2 g1B Bh3 f1Q c6 Qe1 Qc2 d1Q+ Nd4 Qde2 Rh2 Bf4+ Kc5 d5 h6 a6 h7 Bf5 Nb3 d4 Rb1 d3 Na5 d2 Rg2 d1Q Rb6 Ra7 Bb2 Rc7 Bd4 Qh4 Qa2 Bb1 Qd5 Bf2 Qg5 Qg1 Qa7 Rf8 h8R Qb8 g8Q Qh7 Q8d5 Qg8 Qde5 Qb5+ Kd6 Qb4+ Bc5 Kd8 f7 Re8 f8R Re2 Rb5 Bd4 Rb7 Ra2 Qb6 Qc3 Qb2 Qb4 Qf2 Qc8 Rb5 Qf5 Rb6 Kc8 Nb7 Kb8 Na5+ Ka7 Qgg3 Rcc8 Qg5 Qe4 Kd7 Qee1 Qgg3 Qe2 Qeg5 Qe5 Rb8+ Qb6 Qe2 Ng6 Rf6 Qe4 Bf8 Qb4 Qef2 Qed5+ Rd6 Re3 Be7 Qe5 Bf8 Rd8+ Kc7 Rd7+ Kc8 Rb7 Re6 Kb6 Rd6 Kb5 Re6 Rb6 c7 Qh7 Bc5 Qf7 Nb7 Rc6 Ba7 Rc4 Rf6 Bb6 Na5 Ne7+ Kb7 Bd4 Rg6 Qg8 Rb6+
2q1b1Rq/nNp5/BQ1bB3/b4pR1/P3R2r/2q1Bn2/K3bkr1/Q1r4R b - - 0 1 illegal: No possible last move, all moves rejected
N1qRQ3/pqNbn2K/1rq4P/2k1nQR1/4n1q1/3Np3/Q4r2/1b1B1Q1r b - - 0 1 legal: proof: d4 b5 g4 c5 f4 cxd4 a4 bxa4 e3 h6 g5 e6 Bd2 Bd6 Bb4 Bc7 Bd6 hxg5 Be5 f6 f5 fxe5 Na3 e4 Nb1 Bf4 exf4 Qb6 Kf2 Qc7 Ke1 Qd8 Kd2 Ke7 c4 Kd6 b4 d3 Ke3 e5 h4 d2 b5 a3 h5 a2 h6 g4 b6 g5 b7 g3 f6 g2 f5 g4 f7 g3 f8N Kc5 f6 d5 f7 d4+ Ke2 d3+ Ke3 Nc6 b8Q Nge7 Rh5 Bd7 Qc1 d1B Qc2 d2 Nf3 g1R Na3 g2 Ne1 Rh1 Nb5 Qc8 Be2 g1N Rb1 a1Q Nc7 Nh3 Qa2 Qb2 Rg5 Bc2 Bd1 Qbb7 Rb6 Nf2 Nfe6+ Kd6 f8Q Bb1 Qf3 Rf8 Nd3 Rf4 Qg2 Rf6 Qf1 Rf8 Bc2 d1Q Rb3 Qg4 Bd1 Qb4 Qb5 Rb8 Na8 Rb6 Nec7 Qa4 Rb2 Qaa6 Rd2 Qab7 Qba4 Rf7 Nb4+ Kc5 Q4c2 Bf5 Rd8 Bd7 Nd3+ Kd6 Kd2 e3+ Kc3 e2 Kd2 e4 Ke3 Ne5 c5+ Kc6 Kd4 e1Q Qce2 Bf5 Ke3 Qg1 Kf4 Qc3 Qg4 Be6+ Qf5 e3 Rdg8 Kd7 c6+ Kd6 Rd8+ Bd7 Rg7 Qh2+ Kg5 Qh3 Rgg8 Rh7 Kf6 Qg4 Rg5 Rh8 Kg7 Rf8 Kh7 Ne4 Na6 Rf6 c7 Qcc6 Rh5 Qcb8 c8Q Rf8 N6c7 Rf6 Nb2 Kc5 Rg5 Rf8 Qg6 Rf2 Qf5 Be6 Qd7 Q8c8 Qe8 Bd7 Nd3+
1Qr3b1/1n4PR/7r/b3bBb1/b1r1QR2/R3p1KB/1p1q3N/b1Qn2kR b - - 0 1 illegal: No possible last move
2n2b2/Q1B3pR/b1nBnkB1/R4nQ1/3n4/1n1qRp2/r4P2/NrB1b1K1 b - - 0 1 legal: proof: b4 c5 a4 d5 e4 b5 axb5 cxb4 Qf3 dxe4 Qg4 Bd7 Qd1 Bc8 g4 a5 g5 b3 Nc3 h6 Na2 hxg5 Nb4 axb4 Ra3 g4 Ra6 Nh6 Ra1 Ng8 c4 e5 h4 Ke7 d4 f5 h5 f4 d5 f3 c5 g3 h6 b2 c6 b1N d6+ Kf6 b6 e3 h7 e2 c7 e4 b7 g2 d7 b3 Bh6 b2 Rh2 Nc6 b8B Ba6 c8R Nc3 Rc1 b1N Qd5 Nd2 Bd6 Nb5 Rc5 Nc7 Ra5 Nb3 Bc1 Ne6 Qd2 Nge7 Qg5+ Kf7 Rb8 Nc8 Rb7 Rg8 h8Q Ra7 Rh7 Ra8 Nh3 g1N Nf4 Rb8 Nd3 Ra8 Qe3 Kf6 Qa7 Rb8 Rc7 Rb4 Nc5 Ra4 Rh2 Ra2 Qh3 Rh8 Qg2 Rh3 Rb7 Rg3 Rh5 Rh3 Rbb5 Rh1 Rh7 N6e7 Bg3 Nd2 Nb3 Nc6 Na1 Nb3 Rd5 Nh3 Re5 Nhf4 Rh6+ Ng6 Bb2 Nbc5 Rh7 Nh4 Qg1 Nb3 Bh3 Nbc5 Bg4 Nf5 Ba3 Nb3 Bh5 Nbc5 Bg6 Nb3 Bb2 Nbc5 Kd2 e1N Bh2 Nc2 Bf4 Na3 Ke1 Nb5 Kf1 e3 Bg3 Nb3 Ba3 Rh4 Qg2 Re4 Kg1 e2 Bh2 Rc4 Re3 e1B Qg3 Rcc2 Bc1 Rcb2 Qg4 Rb1 Bg3 Qb6 Bd6 Nb5d4 Qg2 Qb5 d8B+ N8e7 Qg3 Qd3 B8c7 Nc8 Qg5+
r1Q3N1/r1pRN2P/5r2/k6n/1r1q4/R1RnrB2/1bKbNrpb/Q3N3 b - - 0 1 illegal: No possible last move, all moves rejected
3bB2b/1q1Br3/k4r2/N1qB2RK/bnQ2P2/1RQpb3/bQp4b/1nQ5 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 Ra2 gxh4 Ra6 Bh6 Ra1 Bf8 c4 d6 Be3 Qb6 d5 Qc7 Bd4 Qd8 Nc3 Bg4 Na4 cxd4 c5 Bh3 c6 Bc8 Nc5 dxc5 Ke2 a5 f4 e5 b4 h5 g4 c4 d6 a4 c7 Kd7 g5 c3 g6 e3 Kf3 c2 g7 e4+ Ke2 a3 b6 Kc6 d7 Kb7 b5 a2 Qb1 h3 Qb2 h4 Rc1 a1B Rd1 h2 Qa3 d3+ Ke1 e2 Kf2 e1B+ Kg2 e3 Kf3 h3 Kg4 e2 Rd2 Na6 Qb4 Qe7 Nf3 Ra7 Qc4 Bg3 Bg2 Rh6 Rb1 e1B Rb3 Rf6 Kh5 h1Q d8Q h2 Qdd4 Bd7 Qdc3 Bef2 Ne5+ Bc6 Bd5 Nb4 Bf7 Qc5 Be8 Ne7 g8B Be3 Rg2 Ned5 Be6 Bd7 Nc6 Be7 Bg8 Bd8 c8B+ Ka8 Na5 Qb1 Be6 h1B Bg8 Bh2 Rg5 Bc6 Bg4 Re7 b7+ Ka7 Bgd7 Be4 Bge6 Bh7 B6f7 Bg8 Bfe6 Na2 B6f7 Ndb4 Bd5 Kb6 Q4d4 Ka7 b6+ Ka6 b8Q Ba4 b7 Be6 Qc8 Bb2 Qd2 Nc3 Qc1 Ba1 Qc7 Qb2 b8Q Nb1 Qc3 Bg8 Ra3 Be6 Bg2 Ba2 Bd5 Nc6 Qcc8+ Qb7 Rb3 Nb4 Q3d2 Be5 Qc3 Rb6 Qc6 Bh8 Qcc8 Rf6 Qbe5 Bf2 Q3b2 Be3 Qec3 Qb6 Q8c5 Q6c7 Q5d4 Qc5 Qdc4+
1bN5/q1nnK3/3Q3B/2Np1q1R/5q1r/k2P3q/1pNB1q1Q/BbqB1r2 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 b5 axb5 exf4 Ra6 cxb4 Ra2 Ba6 Ra1 Bc8 g4 fxg3 Ba3 h5 Bb2 h4 Ra3 g2 Rg3 hxg3 Ba3 Nh6 Bc1 Ng8 e4 Ke7 Ke2 Kd6 Kf3 Kc5 Kf4 f5 Ke5 d5 c4 a5 h4 g5 h5 a4 b6 b3 b7 Kb4 c5 a3 h6 a2 h7 a1Q+ Bb2 g4 c6 f4 c7 f3 Rh2 f2 Rh1 Na6 b8B Bf5 c8N Qg5 Rh5 Qa4 Qc2 Nc7 Ba1 b2 Na3 Nf6 Nf3 g1Q Nd4 g2 Nb3 g3 Be2 f1Q Nc5 Qgf2 Bd1 g1Q Ba7 Bh6 Kd6 g2 e5 Nd7 e6 Qgg3+ Ke7 Bf4 Bb8 Qh3 Ba7 Rf8 h8B Qgh1 Bb6 g1Q Bg7 Qg6 Bh6 Qa7 Nb3 Be4 Be3 Qgf5 Qc5+ Ka4 Qd6 Bb1 d3 Rb8 Nc2 Rb4 Bc1 Be5 Bcd2 Rh4 Bb4 Q2f4 Bd2 Q1f2 Nc5+ Kb5 Bf3 Qc1 Bd1 Rf7+ Kd8 Rf6 e7 Rf8+ e8Q Rf7 Nb7 Ka4 Qh8 Rf6 Ke7 Kb3 Nb4+ Ka3 Nc5 Nb5 Qe6 Bb8 Qd6 Nc7 Qh7 Rg6 Qh8 Rg1 Qhe5 Rf1 Qe2 Q2g3 Qh2 Qgf2 Nc2+
1q1Qb1Rr/R3B1b1/2RnR1b1/pn1b1Q1n/p3b3/P7/3N1k1K/1Q2nBr1 b - - 0 1 legal: proof: f4 d5 h4 e5 b4 exf4 c4 g5 cxd5 gxh4 b5 c6 Nc3 cxb5 Na4 bxa4 Kf2 Ke7 d4 Kd6 g4 f5 Kg2 a5 e4 h5 a3 b5 g5 b4 g6 h3+ Kh2 h4 g7 b3 Qe2 b2 Qg4 b1B Bd2 f3 Be1 f2 Qg5 f4 Ne2 f3 Qg6+ Nf6 g8R Bd7 Nc1 Na6 Nb3 Qb8 Qg2 Ne8 Qg1 Nac7 Rg3 Nb5 Qg2 Bg7 Qg1 Bc2 Bg2 f1B Bf2 Bfd3 Bf1 Ra7 Be3 f2 Bg5 Rc7 Rg2 Bb1 Ra2 Rc1 Rc2 Ba2 Nd2 Bc6 Be2 f1B Rg4 Bg2 Bf1 Bf3 Rg2 Bh5 Qf2 Bg6 Qf5 Bd7 Rc7 Re1 Ra7 Rd1 Rhg1 Bc6 Kh1 h2 Rg3 Bc2 Rc3 Bab3 Kg2 h1N Kh2 h3 Bh4 Bd7 Rg5 Ng3 e5+ Ke7 e6 Kd6 e7 Be4 Rc1 Nh5 Rc2 Bh7 Rc8 Bf8 Bg2 Nf4 Kg3 h2 Bh3 h1N+ Kh2 Rg1 Bf1 Nf2 Rcc7 Ng7 e8R Nfh5 Re5 Ne8 Rc3 Be6 Rg8 Bg6 Bg5 Bg7 Bd8 Nd3 Rc1 Qc7 Be7+ Kd7 d6 Ne1 Rc2 Bc4 Rc3 Kc6 d7 Bef7 d5+ Kb6 d6 Qc8 Re6 Qb8 Nb1 Kc6 Qh3 Kd5 Qf5+ Kd4 Rc1 Bb3 Rc6 Ke3 d8Q Bb2 Qd7 Bf6 Raa6 Bg7 Ra7 Bd5 Qb7 Nbc7 d7 Nd6 d8Q Be8 Qb2 Ncb5 Nd2 Qb6 Nf3 Qb8 Qb1 Kf2 Nd2+
3qQn2/3q1n1q/Q1bB1r1b/1QB2n1B/p3Np2/P3B3/1r1N1qR1/1k1K2n1 b - - 0 1 legal: proof: b4 d5 c4 c5 g4 h5 f4 hxg4 f5 g3 f6 dxc4 bxc5 g2 a3 exf6 Ra2 f5 Rc2 f4 Rc3 Qd5 Rh3 Qd8 Rg3 fxg3 h4 Ke7 d4 Ke6 e4 b5 h5 a5 e5 Kd5 c6 Ke4 h6 g5 c7 f5 e6 g4 h7 c3 d5 c2 d6 a4 e7 b4 e8Q+ Ne7 d7 f4 Ke2 b3 Qg6+ Nf5 Nh3 g1N+ Ke1 g2 Rh2 b2 Qd2 g3 Qa6 Bh6 Qb6 Bb7 c8Q Bc6 Qb5 Rf8 h8B Nf3+ Ke2 g1Q Rg2 Ne5 Qba5 Rf6 Qa7 Nf7 Qda5 Qgb6 Bd2 c1Q Qb5 Qc3 Kd1 Qf2 Qaa5 Qd3 Qaa6 Ra7 Be2 Rb7 Bh5 Qdd4 Rg1 g2 Bg7 Rb6 Bf8 Rb7 Bc5 Rb6 Rh1 g1N Rh2 Qd3 Bd6 Kd4 Ng5 Qh3 Nc3 b1Q+ Bc1 Rb7 Nce4 Qhd3+ Nd2 Kc3 Rg2 Qh3 Qe2 Rb2 Qcb7 Qe4 Qbb5 Qee8 Qe4 Qh8 Qe8 Qh7 Nc4 Kd3 Be3 Kc3 Qd5 Kb3 Qdb5+ Ka2 Ne4 Kb1 Bdc5 Qa5 d8B Nd7 Bc7 Nf8 B7d6 Qd8 Bb6 Ne7 Bbd4 Qhd7 B4c5 Nf5 Ncd2+
1N2r3/q3q1BB/k2Q2Q1/Nn1p2bK/1qpb4/3Pn1r1/1rQq1N2/Q5rR b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c3 bxc3 Nh3 e5 Bg2 exf4 Bf1 b6 Ng1 f3 Ba3 f4 Bb2 Qg5 Bc1 Qd8 a4 h5 Ra2 Bb7 Qb3 Be4 Qd1 Bf5 gxf5 Bd6 Kf2 Be7 Ke1 Bf8 Rb2 Qg5 Rb4 Qf6 Rc4 Qd8 Rc6 Qc8 Rg6 Qd8 Rg4 hxg4 Kf2 d5 e4 Kd7 h4 Kc8 e5 Kb7 h5 c5 h6 g5 h7 g3+ Ke1 g2 Kf2 c2 d3 c4 a5 b5 e6 g4 e7 g3+ Ke1 f2+ Ke2 b4 Kf3 b3 Kg4 f3 e8N b2 f6 Nh6+ Kg5 Qe7 Na3 b1R Nh3 g1R Nd6+ Ka6 Nb7 g2 Bb2 c1B+ Kh5 Ng4 f7 Rg8 h8Q Bg5 Qh7 Nc6 Qc2 Bg7 f8Q Nd4 Nb5 Ne3 Na7 Re8 Nc6 Nb5 Qg6 Bd4 Qff6 Qb4 Qd6 Rg7 Be2 f1Q Nf2 Qc1 Bc3 Qd2 Bd1 Bb6 Ba1 Rgg8 Bg7 Rb2 Be2 Bd4 Bd1 Re1 Be2 g1Q Bf1 Qg3 Bh3 Rg1 Bf5 Qe5 Qh6 Qa4 Bh7 Qe7 Qhg6 Qab4 Nb8+ Ka7 a6 Rg3 Na5 Rg1 Nh3 f2 Nbc6+ Kb6 a7 f1Q a8Q Qff7 Nf2 Qa7 Qc8 Qfe7 Qg4 Ka6 Qgd1 Rgf8 Qf1 Rf3 Qa1 Rfg3 Nb8#
n1bK4/1Q3b1r/n4QRB/2pb3B/4Pnnk/qp3rR1/q1Q3b1/1N2R1R1 b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qb3 f4 Kd1 f3 Kc2 f2 Kb2 Ra6 Qd1 Ra7 Kc2 Ra8 Ba3 h5 Bc1 f5 Nc3 f4 Nd5 f3 Ne3 Bd6 Ng4 Bf4 gxf4 hxg4 h4 Ke7 e4 Kf6 d4 c5 a4 g5 h5 b5 d5 b3+ Kc3 g3 d6 g4 a5 b2 a6 b1B f5 g2 a7 b4+ Kd2 Kg5 Ke3 g3 d7 c3 f6 c2 h6 Qa5 d8Q Na6 h7 Ba2 f7+ Ne7 f8Q Bf7 Q8d2 b3 Ne2 g1N Qc3 g2 Qdd3 Qa2 Qb4 Nh3 Nc3 g1N Nb1 Nf4 Qb7 Ngh3 Rg1+ Kh4 Be2 f1B Bd2 c1Q Qc2 f2 Bh5 Rb8 a8R B1c4 Qd8 Rf8 h8R f1B Rh6 Bg2 Rg6 Qca3 Qd4 Bcd5 Qf6+ Ng5 Ra7 Nc6 Re1 Ne5 Ra8 Ne6 Bc1 Nec7 Kf4 Ng4 Be3 Nh6 Ke5 Ng4+ Kd6 Rh8 Ke7 Rh7 Ra7 Na8 Bf4 Nb4 Kd8 Na6 Qg7 Nh3 Bh6 Nf4 Qf6+ Kg3 Qb4 Rb6 Re7 Rc6 Qb7 Rc7 Re5 Rc6 Reg5 Kh4 Nd2 Re6 Rad1 Re5 Nb1 Rf5 Rc1 Nd3 Rg1 Rf3 Rce1 Nf4 Qh8 Nf2 Rg3 Ng4 Qf6+
r1bk4/1Nr3BK/4Qqp1/RQ1nR3/1B3nr1/Pn1nrq2/1Q2B1p1/6bB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Nc3 exf6 Ne4 f5 Ng3 f4 Ba3 fxg3 Bb2 Ra4 Bc1 Ra8 e4 b5 Ke2 f5 Kf3 c5 Kf4 g6 h4 c4 d4 c3 d6 c2 h5 b3 h6 b4 d7+ Ke7 Kg5 f4 d5 b2 h7 b1N e5 f3 e6 b3 Bb2 c1N Qe2 f2 Nh3 g1Q Qb5 Na6 Bg7 b2 Nf4 Qh2 Be2 f1R Nd3 Re1 Nc5 Qf2 Nb7 Nb4 Rh5 Nf6 Kh6 Nd2 Re5 Rg8 h8Q Nh5 Kh7 b1R a3 Rb2 Rb1 Ncd3 Rc1 Qdb6 Rc5 Qc6 d8B+ Ke8 e7 Qf3 d6 Nhf4 Bf6 Nbd5 Bg7 Nb3 Ba5 Rc2 Bb4 Rg1 Qb6 Rc4 Ra5 Re4 Qb5 Re3 Bf6 Bh6 Bg7 Rf8 Qg8 Rc1 Qe6 Rf5 Qf6 Rg5 Qf5 Rc2 Qe4 Rg4 d7+ Kf7 d8Q Qf6 Qdb6 Rc7 Qed4 Bg5 Qb2 Bh4 Qc4 Ke8 Qe6 Bg5 Bf1 Bh6 Bg2 Bg5 Bh1 g2 Qca6 Bh4 Qab6 Bf2 Qb5+ Rc6 Qf7+ Kd7 Qe6+ Kc7 e8B Bg1 Nd6 Kd8 Bd7 Rc7 Bc6 Nc3 Bd5 Ne1 Bc4 Ncd5 Be2 Ned3 Nb7+
1b2KR1q/4Q2p/1k1Pp2b/1N3BR1/3r4/2N2N2/nNR2bq1/1n1rqbqQ b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 Ba3 dxc4 axb5 f5 b6 fxe4 b5 Ba6 Bc5 Bc8 Bb4 axb4 Ke2 Kd7 Ke3 c5 Kf4 e6 Ke5 b3 g4 h3 d4 b2 f4 c3 f5 c2 g5 c1B g6 e3 b7 Kc7 f6 e2 f7 e1B g7 c4 d5 h2 Bd3 c3 Ra2 c2 Nf3 Na6 b8N Bh6 Nd7 c1Q Rf1 h1Q Bf5 Nb4 Nc3 b1Q Rc2 Na2 Nc5 Ba6 Nd3 Qg2 Nb2 Ne7 Kf6 Bf2 g8R Kb6 Rg5 Rc8 Qe1 Rc4 Qe4 Rg8 Qh4 Qe1 Qh1 Kc5 b6 Rd4 b7 Kb6 b8N Qbc1 Rg1 Bf1 Nc6 Rd1 Na7 Qb1 Rg3 Rg4 Nab5 Rgd4 Rg8 Bf4 Rh8 B8h6 f8Q Bb8 d6 Nd5+ Kf7 Qa1 Rg8 Qf6+ Ke8 Qh8 Qe7 Qb1 Ne4 Ndc3 Rf8 Qc1 Qd7 Nb1 Nec3 Qh2 Rg7 Qg2 Qe7 Qcg5 Rg6 Qg1 Rgg8 Q5g2 Rg5
1KNq1Rr1/1Q3PB1/2R2n2/3q1q2/Q2pN1k1/R2n1r2/n3qbRp/1n3Qb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 d4 fxe4 f5 c5 Na3 cxd4 Nb1 g6 g4 b6 f6 Ba6 Bh3 Kf7 g5 Ke8 Bf5 Be2 h3 Bg4 hxg4 gxf5 Ke2 Kf7 a4 Ke6 c4 d5 f7 h5 g6 h4 a5 e3 Kf3 f4 g7 e2 g5 Kf5 g6 e1B c5 e5 c6 b5 a6 h3 a7 h2 c7 e4+ Kg2 d3 c8R f3+ Kf1 b3 Qe2 d2 Bb2 d1Q Ra3 b4 Nd2 f2 Kg2 e3 Kg3 Bc5 Rc6 Na6 Qf1 e2 Nc4 Nf6 Nb6 Rg8 Nc8 Rb8 Bc3 b2 a8Q b1Q Qb7 b3 Ba1 b2 Kf3 Rf8 g8Q Nb4 g7 Na2 Qh8 Re8 Qh4 Rg8 Qa4 Qbc2 Kg3 b1N Kf3 Kg5 Bb2 Kh5 Kf4 Qc4+ Ke5 Kg4 Qc7 Rb3 Qb7 Rf3 Bc3 Qc2 Bb2 Rh8 g8R+ Qg6 Rf8 Rg8 Nh3 Qc2 Ng5 Be3 Ne4 d4 Ng3 Qd1 Rg1 Qdd3 Rg2 Qdb3 Qh1 f1Q Bc1 Bg1 Bh6 Bef2 Bg7 e1N Qaa7 Qe8+ Kd6 Qce2 Kc7 Qd5 Kb8 Nd3 Qaa8 Qed8 Qa4 Be3 Rf2 Qh3 Rg2 Bgf2 Qhd1 Qh7 Qf1 Qhf5 Qc4 Bg1 Qa4 Bef2 Ne4+
QrnN2q1/3n3N/1BpN1r1P/2N5/1QrQrpb1/nK5k/1R2B3/3rqq2 b - - 0 1 legal: proof: g4 d5 c4 dxc4 b4 f5 f4 e5 a4 a5 g5 axb4 Ra3 Be7 Rg3 exf4 Rg4 Bf6 gxf6 h5 Qb3 hxg4 Qc2 Rh5 Qd1 Rh8 h4 Kd7 e4 Ke6 d4 g5 Kd2 b5 Kc2 b3+ Kb2 c6 e5 f3 f7 f2 f8Q f4 h5 g3 h6 c3+ Ka3 g2 a5 b2 a6 c2 a7 b4+ Ka2 b3+ Ka3 g4 Bd2 c1R Qc2 g3 Qd1 Nd7 Be2 f1Q Nh3 g1R Qe7+ Kf5 e6 g2 d5 Rb8 a8Q Rc4 Nc3 b1R d6 b2 Rh2 Rc1 Ka2 b1N Ne4 Na3 Nc5 Re4 Be3 Rcc4 Ng5 Qa5 Qd3 Qae1 Qd4 Rh7 Qf8+ Rf7 e7 Rf6 e8N Ne7 Nh7 Rh1 Bf2 g1Q Be3 Qg8 Bf2 Nb6 d7 Rg1 d8N Nd7 Qa5 Rh1 Qb4 Rg1 Kb3 Rh1 Bd3 Kg4 Nd6 Rg1 Rg2+ Kh3 Be2 Nb6 Qa4 Bg4 Qa8 Nec8 Qe7 Rh1 Qeb7 Nd7 Qb4 Rg1 Be3 Qe6 Bd1 Qg8 Rb2 Rg2 Bg1 Rd2 Be2 Rd1 Na4 Nb5 Qe5 Nf8 Bb6 Nd7 Qd4 Na3 Nc5
2q3bQ/1p1n4/2n3rk/n1Q2pb1/2B1RN1P/Q1Kn2nb/q1N1R3/4R1Qq b - - 0 1 legal: proof: g4 f5 b4 a5 d4 axb4 f4 e5 g5 c5 Kd2 cxd4 Ke1 Ra6 Be3 Rf6 gxf6 h6 Bf2 exf4 Bh4 Qb6 Bg5 hxg5 Na3 Qa5 Nb1 Qd8 Kd2 Kf7 h4 Kg6 e4 d5 c4 d3 a4 b3 f7 f3 c5 d4 a5 b2 a6 g4 c6 f2 e5 g3 c7 g2 e6 Nd7 e7 Rh6 e8R Ne7 a7 Nc6 a8Q Be7 f8Q Bg5+ Re3 Kh7 Qa2 Rg6 Qe2 Kh6 Nf3 g1N Qd1 Ne2 Nh2 Ng3 Nc3 b1Q Qe6 Qa2+ Qc2 Qe8 Be2 f1B Qb3 Bh3 Ke1 d2+ Kd1 Na5 Qcb2 Qe6 Kc2 d1N Qg8 d3+ Kd2 Nf2 Rae1 Ng4 Qa3 Nge5 Qc5 Nec6 Nd5 Qe8 Kc3 d2 Qba3 d1N+ Kd3 Qd8 Nf3 Nb2+ Kc3 Nd3 Nf4 Be7 Qe6 N3e5 Ng1 Ndb8 Rd1 Rf6 Ra1 g5 Bf1 g4 Qa7 Rg6 Qd5 Be6 c8Q Bg5 Rh2 Nh1 Nf3 g3 Bc4 g2 Re4 g1Q Ne1 Nbd7 Nc2 Nd3 Rhe2 Ng3 Rae1 Qh1 Qg1 Qc7 Qe8 Qc8 Qdc5 Bf7 Qee5 Bg8 Qh8+
rq4Qn/2N4n/1nR1pR2/5Rn1/qkb3pQ/2r5/1KnNqP1n/1Q1R3B b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 g3 e6 Bd2 Bd6 Bg5 Bf4 gxf4 h6 f5 hxg5 Kd2 Ke7 Kc1 Kd6 a4 Kc5 c4 b5 h4 d5 f6 g4 a5 g5 a6 g3 f7 b3 f8Q+ Ne7 a7 b4 h5 g2 h6 b2+ Kc2 b3+ Kd2 g4 h7 d3 Kc3 d2 Ra4 e3 Qe2 d1Q Rb4 Nd7 Qf6 Nb6 Na3 b1N+ Kb2 d4 Qc2 d3 Qf7 e2 Qc1 e1N Qc3 d2 Qh3 Nc2 Qff3 Ba6 Ra4 Ng6 Nb5 Qe2 Nc7 d1Q Qh4 Nc3 Qf5+ Ncd5 Nf3 g1N Nd2 Nh3 Bg2 Qb8 Ra5+ Kb4 c5 Rc8 h8Q Ng5 c6 Nf6 Qg8 Nh8 Qfh7 Bd3 Rf5 Bc4 Qhg6 Nfh7 Rf6 Ne1 Qb1 Nef3 Rf1 Nh2 Bh1 Qe4 Rf5 Qde2 Rd1 Qf4 Ne8 Qfe4 c7 Qc6 Rf6 Qa4 Rf5 Rd8 c8R Rd3 Nc7 Rc3 Rf6 Ka5 Qe4 Re3 Na6 Rc3 Kb1 b2 Rc6 Kb5 Nc7+ Kb4 Qg7 Qb7 Qgg6 Rb8 a8R Rd8 Ra7 Ra8 Ra5 Qb8 Qef5 Rb3 Kc2 b1N Qg8 Rc3+ Kb2 Na3 Qb1 Nc2 Raf5
4nr1k/2P1Nq1r/2K1pr1N/qrpR2N1/2rr2R1/n2B3Q/qb6/R2N1Q2 b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 fxe4 d5 c5 Bd2 b6 Bg5 Bb7 Bd2 Bc6 dxc6 b5 Bc3 bxc4 b5 Na6 Bd2 Nb8 Bb4 axb4 Kd2 Kf7 Ke3 Kg7 g4 h5 a4 d5 f4 e6 g5 h3 g6 h4 b6 h2 f5 d4+ Kf4 d3 Ke5 b3 b7 c3 c7 e3 a5 e2 a6 e1Q+ Ne2 d2 a7 b2 Qb3 d1R Qb5 h3 Ke4 c2 Qb3 c1R Qd3 Rh6 f6+ Kh8 f7 Qd7 Nc3 b1Q Ke5 Qa2 Rg1 h1R Ne4 h2 Qh3 Qea5 N2c3 Rd4 Ng5 Na6 b8N Nf6 Rg4 Ne8 Nd1 Nb4 Bd3 Nc2 Nc6 Na3 Ne7 Rb8 a8Q Rb5 Qag2 Rcc4 Qf1 Rh7 Ng8 Bh6 f8R Bg7+ Rf6 Qf7 Ne7 Bh6 Rff4 Rg1 Rf5 h1R Ne4 Bc1 Rfg5 Rh6 g7+ Kh7 g8N Kh8 Rh5 Bb2 Ng5 Rh7 Nh6 Rh2 Qhf3 Rf2 Q3h3 Rf6 Nd5 Ng7 Kd6 Ne8+ Kc6 Rg2 Ne7 Rgf2 Qf3 Rg6 Q3g2 Rg8 Qh3 Rf6 Ne4 Rf8 Rd5 Rc3 Ng5 Rc2 Neg8 Rcc4 Ne7
4N3/bK1P1r2/1RB5/1B3rp1/2p1NNnn/kqrQB2q/1Q2nrB1/4n2r b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 a3 f4 a4 Bf5 gxf5 Qc8 Ra3 Qd7 Rd3 Qd8 Rd6 h6 Rg6 h5 Rg4 hxg4 Kf2 Ke7 e4 Kd6 d4 c5 h4 b5 h5 g5 f6 c3 d5 b3 f7 b4 h6 c4 e5+ Kc5 d6 b2 a5 b3 h7 Kb4 e6 c2 e7 g3+ Ke1 g2 Kd2 f2 e8B f3 Ke3 Nc6 Ke4 Nh6 Kd5 Ng4 d7 Nd4 a6 Ne2 Kc6 Bc5 f8N Ba7 Nh3 g1N Na3 b1Q Nf4 b2 Be3 c1N N8e6 Nd3 Bg2 f1R Rh6 f2 Bg6 Rf8 h8Q Rf7 B6e4 Ne1 Kb7 Ngf3 Nb5 Nh4 Nc3 Ka3 Ng7 Qe8 Bc2 Qe6 Qd3 Raf8 Bc6 Rh1 Ne8 f1R B2a4 Rf2 Bab5 Rf5 Bg2 R8f7 Qf6 Qd1 Ne4+ Qb3 Qg7 b1R Qb2+ Kb4 Rg6 Rc1 Rh6 Rc3 Rf6 Bd4 a7 Bc5 a8B Ba7 Qbb1 Ka3 Qbc2 Qe5 Rb6 Qf6 Kc8 Qh8 Bac6 Nhf3 Kc7 Qh3 Kb7 Nh4 Qb2+
1n6/1n1pnBkb/r3pRqR/1R1b1q2/Nb1BRP2/3b2b1/7Q/BQ1K2n1 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 b4 hxg4 d5 axb4 Nc3 b5 Ne4 Ra3 d6 fxe4 f5 Rf3 exf3 cxd6 f4 d5 Bb2 d4 Ba3 Bb7 Bc1 Bc8 c4 Kf7 h4 g5 a4 e6 a5 e3 f6 b3 c5 e2 a6 d3 a7 g3 a8R g2 h5 b4 h6 d2+ Kf2 e1B+ Ke2 g4 h7 b2 c6 b1B c7 g3 R8a3 b3 Rh5 b2 Ra4 Bb7 c8Q Qa5 Re4 Bd5 Rh6 Bb4 Qcc2 Ne7 Ra2 Kf8 f7 Kg7 f8R Bf2 Qe1 d1N Rff6 Ne3 Qed1 Nc4 Be3 Rd8 Bd4 Nd6 Ra3 Rh8 Rb3 Nb7 Qdd3 Rc8 Kd1 Rc6 Be2 Ra6 Bh5 Bfe1 Ne2 g1N Bf7 g2 Qh3 Bg3 Nc3 Qb5 Qc1 Bd3 Na4 b1B Qh1 Bc6 Qh2 Qf5 Qd2 Bd5 Qe1 Ne2 Qf1 g1Q Rb2 Qg2 Qfh1 Ng1 Rb3 Ba3 Rb5 Bb4 h8B+ Kf8 Nc5 Bf2 Be3 Bdc2+ Kc1 Qe5 Rc4 Nh3 Na4 Bh7 Rfg6 Bd3 Re4 Qf5 Ba1 Qgg5 Q1g1 Bg3 Rf6 Qgg6 Bed4 Kg7 Qd1 Ng1 Qb3 Qfg5 Kd1 Q5f5 Qb1
3nN2R/2KbNrqB/1pb4b/2BB4/pq2b3/1Qr1N1k1/3NP3/2Q2rrq b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 g5 c4 gxh4 d4 b6 b4 Ke7 b5 Bb7 c5 Bc8 d5 Ke8 a5 Nc6 dxc6 bxa5 b6 a4 b7 Qe7 Ra3 Qg5 Rb3 Qd8 Rb6 cxb6 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 Kg4 b8Q h5 c7 a5 g3 f5 c6 h3 Qc2 h4 Rh2 a3 Bg2 f3 Qa2 f2 Qa7 f1Q Be3 a4 Bc1 f4 Be3 f3 Qb7 f2 Qc2 a2 Nf3 a1Q Bd2 Rh7 Bb4 Nh6 Bd2 Qe7 Bc3 Rf7 Qb3 Qb4 Bd4 Qh1 Ne1 f1R Bc5 Qg7 Nd2 d6 Nc2 Bd7 Qa6 Rc8 Qad3 Rg1 Qdc3 Rgf1 Be4 Rg1 Qa1 Rgf1 Qc1 Rg1 Rf2 h2 Ne3+ Kh3 g4 Kg3 g5 h3 g6 Rf1 Ndc4 Rg1 Rf6 Rf1 Kd4 d5 Ke5 d4 Nd2 d3 Bd5 Re7+ Kd6 Rg1 Nb1 d2 Re6 d1B Nd2 Bc2 Re4 Bd3 Rh4 Be4 Rh5 Qf3 Rh4 h1B Rh5 h2 Rh4 Ra8 c8N Nf7+ Kc7 Nd8 Rh8 Rf7 Nd6 Bg2 Ne8 h1R Qbc4 Rf1 Q4c3 Rhg1 Qb3 Qh7 g7 Rb8 g8B Bh6 Qcd1 Qg7 Qc1 Qh5 Bh7 Qh1 Kd6 Bgf3 c7 Rb7 c8N Rc7 Ne7 Rc8 Be6 Bec6 Bd5 Be4 Qcc3 Ra8 Kc7 Ra5 Bd4 Rc5 Qc1 Rc3 Bc5
7q/1qQN1qn1/p1Q1n3/1r1Q1BP1/3rb3/1NprR1K1/1Nk2B1n/q1Q1r3 b - - 0 1 illegal: No possible last move
4BQ1q/6p1/1K3nBP/2N1qrnb/R1Rqb2B/2p2nQ1/2bk3n/b2B1Q2 b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 b5 Na3 h5 Ng1 f5 Nc2 f4 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Bd6 Ng4 hxg4 Qa4 Bc5 Qd1 Bf8 Kf2 Kd7 e4 Kd6 h4 Ke5 a4 Kd4 e5 c5 d3 Kc3 e6 g3+ Ke1 g2 Kf2 b3 e7 b4 e8B b2 d4 b1B h5 b3 a5 b2 d5 Nf6 a6 Nh7 f6 Bg4 h6 Be7 a7 Bh5 a8B Rf8 d6 Nd7 f7 Ndf6 d7 Bc2 Nh3 g1N Bd5 b1B Ra5 Ng5 Rb5 Qc7 d8Q Qe5 Rb2 Be4 Qd7 Bbc2 Be2 Bd8 Ra2 Bb6 Kf1 f2 Ra4 N1f3 Qd6 Qd4 Kg2 f1N Nf2 N1h2 Qf1 Bc7 Bb2+ Kd2 Bd1 c3 Nd3 c4 Qa3 Be5 Nc5 Bcd3 Be6 c2 Bf5 c1Q Bg6 Qcc3 Qb3 Bc2 Ba1 Qd5 Kf2 Qa5 Bb2 Qaa8 Ba3 Ba1 Rg1 Qa7 Rg4 Qe5 Qb8 c3 Bb4 Rg8 f8Q Qd7 Ba5 Rh8 Bd8 Qdd6 Qe7 Rf8 Rh4 Rf7 Qf8 Qdd4+ Kg2 Qd7 Bb6 Bb7 Ne6 Qf5 Kf2 Ne1 Qc4 f3 Qh8 Qdd5 Bd7 Ng8 Re4 Kc1 Ke3 f2 Be8 f1Q Bc7 Qg4 Bg3 Qh4 Qf4 Qe5 Bf2 Qg4 Bh4 Bc6 Qg3 Qff5 Bh7 Nef3 Qb5 Rf8 Qf1 Qf7 Bg6 Bb7 Bd7 Qe8 Bb5 Rf4 Bc6 Qf8 Bce8 Nf6 Qg8 Rf5 Qf7 Qh8 Qf8 Bb3 Kd3 Qgf4 Nc5 Bc2+ Kc4 Kd2 Kb5 Qe3 Reb4 Bbe4 Kb6 Q3d4 Rc4
3NKb1k/p1b5/2Nq2N1/N2pbQR1/q1qP3Q/6n1/1B2bRnq/R1r4n b - - 0 1 illegal: No possible last move
3BrN2/bnn1k1p1/2Kp4/1nR3N1/NR3br1/3r3Q/r1bP2R1/Q3brR1 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 e5 g5 d6 g6 Qd7 c5 Ke7 c6 hxg6 cxd7 g5 Qb3 g4 Qa4 Rh6 Qd1 Rh8 f4 Ra6 e4 Rh6 f5 Ra8 Bc4 Ra3 Be6 Nf6 Bb2 Rh8 Bd4 Ra8 Be3 Ng8 Bf4 exf4 e5 Rh6 Bb3 Rh3 e6 Kf6 e7 Rh8 Be6 fxe6 Ke2 Kf7 Kf1 Ra4 Ke1 Ra8 Ke2 c5 Kd3 b5 Ke4 f3 e8R g3 a4 g2 h4 c4 f6 b3 a5 e5 Kd5 b4 h5 e4 a6 e3 h6 c3 a7 e2 h7 e1B Re4 b2 Re3 b3 Re6 f2 Re4 f1R Reh4 c2 Ra3 c1R Ra6 Be7 R1h3 Nc6 Rb4 Rc3 Nf3 g1B Ra5 Ba6 Ra2 Bd3 Rb6 Nd8 Nh2 Nb7 Nf3 Bc2 Rb4 Rd3+ Kc6 Bb6 Nc3 b1N Ra5 b2 Rhh5 Na3 Rhg5 b1R Na4 Nb5 Rg2 Kf8 f7 Bg5 Qc1 Bf4 Ng5 Ke7 f8N Nf6 Qb2 Nd5 Qa1 Re8 a8R Ndc7 Rb8 Rg8 h8Q Ba7 Qh3 Rb2 Rc8 Rh8 Ra8 Ra2 Rb8 Nc3 Rc5 Rh4 Ra8 Bb6 Ra6 Ba7 Rab6 Rg4 Rb1 Bh4 R6b4 N3b5 Rc1 Rf2 Rh1 Rf1 Rhg1 Be1 d8B+
2qR2K1/1r2P2r/6np/1b1npBrQ/r4n2/QNrQ4/4B1Q1/1k1Rr1Bn b - - 0 1 illegal: No possible last move
k7/N1prn1KN/3bB1nr/1r2N3/1B2p1Qr/1P5r/nnr1Q3/N2b1RQ1 b - - 0 1 legal: proof: g4 f5 f4 h5 a4 hxg4 e4 b5 c4 d5 e5 Qd6 Ra3 dxc4 Re3 bxa4 Re4 fxe4 f5 Qf6 exf6 Kd7 Kf2 Kd8 Ke1 Ke8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb7 Kg5 e5 Kg6 a5 h4 c3 d4 e3 h5 g3 h6 e4 d5 e2 b3 e1N d6 c2 f7 a3 f6 g2 h7 a2 d7 a1R d8Q a4 Qe2 a3 Rh6 a2 Qh5 Nc6 Be3 c1N Qh2 Ne5+ Kg5 Ra5 Bd2 Ka8 Nf3 Ne7 Nc3 Ne1d3 Qd7 g1R+ Qg4 N5g6+ Nb5 Rh1 Bb4 Nb2 Qhg1 Rh3 Ne5 Ba6 Na7 Be2 Rh5 Bd1 Bc4 Rb5 Be6 Rb1 Rh4 a1R Qe2 Na2 Rf4 Rc1 Rf1 Rc2 Qgg4 Rg8 h8Q Rh6 Qh7 Rh8 Qg8 Rac1 Qg1 Rc3 Qgg4 R1c2 Qg1 Rch3 Qgg4 Nc8 Qg1 Bc5 f8N Nce7 f7 Bd6 Qgg4 R6h4 Qg1 R8h7 Qgg4 R7h6 Nh7+ Nf8 Qg1 g6 Kf6 g5+ Qg6 g4 Kg7 g3 Qgg4 Nfg6 f8N g2 Nd3 Rg5 Nd7 Rgh5 Ne1 Rb5 Qc5 g1R Ne5 Rg2 Qg1 Rd2 Nc2 Rf2 Na1 Rc2 Bc3 Rf8 Q1g2 Rd8 Bb4 Rd7 Qg1
4b1b1/1p2b1b1/nKbb4/BB2bN2/2B2PN1/n1QN3b/2p2rkR/Q1rN4 b - - 0 1 legal: proof: e4 d5 h4 f5 f4 a5 c4 dxc4 b4 axb4 a4 Qd4 h5 Qc5 Ra3 g5 Rf3 g4 g3 gxf3 g4 Qc6 g5 Qg6 hxg6 fxe4 Kf2 Kd7 Ke3 Ke6 Kd4 Kf5 Kc5 Kg4 d4 Kg3 g7 e5+ Kb5 c5 g6 h5 a5 b3 a6 c3 d5 f2 a7 e3 d6 c2 d7 e2 d8N e1B Qd5 b2 Qd6 h4 Bg2 f1B+ Kb6 e4 Na3 b1B Qd2 e3 Bb2 c1B Nc4 e2 Bc6 h3 Ba3 h2 Nf7 Bfh3 Na5 c4 Nb3 c3 Nd6 c2 Qd1 Ba2 Bc5 Nh6 g8B Bc3 g7 e1B Qh5 Be7 Bc4 Be5 g8N Bcb2 Ba3 Ng4 Bf1 Bb4 Nc1 Bd7 Bcb5 Ne3 Nh6 Na6 Bfc4 Kg2 Ndf5 Be8 Ng4 Bbd6 Nge2 Bg7 Bc5 Bbe5 Nd3 Rd8 a8Q Bb3 Re1 h1B Bb4 Rg8 Qh8 Ba2 Be6 Rd7 Ba5 Nc4+ Ka7 Rd8 Nc3 Na3 Nd1 Bb3 Kb6 Ba2 Qh6 Rh8 Qf6 Rh7 Bed7 Bg8 Bc4 Rh6 Bdb5 Rg6 Nh2 Rg3 Ng4 Rf3 Qc8 Rf2 Qc5 Rc8 Qd4 Rc5 Qc3 Rd5 Qa1 Rd4 Bf7 Rb4 Bc4 Rb1 Qc3 Rc1 Qa1 Bb8 Rf1 B5d6 Qfc3 Bde5 Re1 Bbd6 Re3 Kf1 Rg3 Bhc6 Rg1+ Ke2 Rf1 Kf3 Rh1 Kg2 Rh2+
3QNRq1/k1r1r1n1/3R2b1/n1qprQ1Q/3n3b/P3N1Q1/p1p1B3/Kb3N2 b - - 0 1 illegal: No proof kernel
1Bkr1rRQ/q2bq2P/1N2p3/3n1q1R/1b1KNRp1/nQ1N4/b1rpN3/8 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Be2 g5 Bf3 gxf4 g5 Ba6 Be2 Bc8 Bg4 hxg4 Kd2 a5 c4 d5 h4 Kd7 b4 f3 g6 e6 g7 e3+ Kd3 f2 b6 f1Q+ Qe2 a4 b5 a3 b7 a2 c5 Qe7 b6 Na6 b8Q Nc7 b7 Nb5 h5 Na3 h6 Nf6 Nd2 Qf5+ Ne4 Rg8 Qg2 e2 h7 e1R Qc2 Re2 Qb3 Rc2 c6+ Kd8 Rb1 a1Q Rh5 Qa2 Qe5 Bd7 b8N Kc8 c7 Rh8 g8R Qa1 Bd2 Qa2 Ke2 d3+ Ke3 Qa1 Ba5 d2 Ne2 d1B Nc6 d4+ Kd3 Nd5 Nb4 Nc4 Bb6 Qa7 Ra1 Rb8 Ra4 Na3 Qf6 Kb7 Ba5 Rd8 c8N Kb8 Nb6 Kc7 Na8+ Kc8 Qe5 Bh6 Bb6 Bd2 Bc7 Bc3 Bb8 Be1 Rg6 Rhf8 Rg8 Bd2 Qh8 Bc3 Na6 Bb4 Nc5 Rc1 Qb2 Bb3 Qc3 Ba2 Qb3 Bc3 Rb4 Rc2 Ra4 Nb5 Kc4 d3 Rb4 d2 Nd3 Ndc7 Ra4 Nd5 Nb6+ Kb7 Ndc1 Bb4+ Kd3 Na3 Kd4 Bd6 Rc4 Bb4 Nd3 Qa4 Nf6 Qg6 Ke5 Qa7 Rf4 Qf5+ Kd4 Qa6 Na8 Kc8 Ne4 Qa7+ Nb6+
3Nrr2/4Qn1k/2p5/pP1Q1bp1/KRQ4N/1r4Rn/nNq4r/B1b2Qr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 g5 h4 a5 d4 f5 Kd2 Kf7 Kc2 Kg7 b4 f4 b6 f3 d5 c3 Kb3 f2 d6 f1R e5 c2 h5 c6 h6+ Kh7 b5 Bg4 b7 Ne7 e6 Qd7 Qd5 Ra6 Rh4 Rf5 Bb2 c1N+ Ka4 Na2 Nc3 Ra8 Nf3 g1R Nd1 Ng6 e7 g2 e8Q Nf4 Qe7+ Bg7 Be5 Nh3 Nb2 Rff8 Rb1 Qc8 d7 Bf5 d8N Nd7 b8Q Qb7 Bf6 Ne5 Rb4 Nf7 Nh4 Qc8 Ra1 Rb1 Qf4 g1R Qfc4 Qe6 Bd4 Qg6 Bc3 Be5 Qf1 Bf4 Qdc4 Nc1 Ra3 Na2 Bf6 Bc1 Rg3 Rc8 Nf3 Nf2 Ne6 Bd3 Nd1 Kg8 Ba1 Rce8 Nd8 Rb3 Nb2 Qe4 Qd5 Qe2 Qc4 Qc2 h7+ Kg7 Qcc5 Bf5 Qcc4 Rhg8 h8Q+ Kg6 Qhe5 Rh8 Qef4 Rh2 Qfd6+ Kh7 Nh4 Nh3 Qdd5
2kQbr2/1pn4Q/qb1QBR1K/7Q/2np2r1/2Pp4/1b3Rn1/n1nB2BN b - - 0 1 illegal: No possible last move
2r2k2/1p1Kb3/Bp2Q2r/5N1n/1nbN1b1B/pr1P1B1r/Qq2rB2/2Q2R2 b - - 0 1 legal: proof: e4 g5 b4 f5 exf5 Nh6 h4 gxh4 b5 Ng8 b6 cxb6 c4 d5 c5 Nc6 Na3 Nb4 Rb1 Nxa2 Rb4 Nc3 Re4 Na2 Rc4 dxc4 Ke2 h5 Kf3 a5 Ke4 e5 g4 c3 f4 a4 c6 c2 g5 h3 f6 h4 f5 h2 f7+ Ke7 c7 h3 f6+ Kd6 g6 Rh5 g7 Rh6 Nf3 Be7 f8B Be6 c8Q Bc4 Kf5 e4 f7 e3 Nh4 Nf6 g8B e2 d3 e1R Be2 Qe8 Bf3 Nb4 Rf1 h1R Bg5 c1B Nc2 a3 Nd4 Bf4 Qc1 h2 Bg7 Qd8 f8Q Nh5 Qf7 Re2 Bh8 Rg1 Bhf6 h1R Qce6+ Kc7 Bh8 Rh3 Bg7 Rc8 B7f6 Bg3 Be3 Bf4 Bf2 Qf8 Bg5 Kd8 Bf6 Qg7 Bg5 Ba6 Qa2 Kd7 Qfe6+ Ke8 Bf7+ Kf8 Be8 Bc4 Bb5 Rg2 Ba6 Rb2 Bf6 Rb3 Bg5 Rgh2 Bf6 Bg5 Ke5 Bd2 Nhf5 Qg2 B6h4 Bdg5 Be1 Qb2 Bef2 Be3 Be1 Re2 Bef2 Bd8 Kd6 Be7+ Kd7 B3g5 Bc6 Bf4 Bf3
k1rRQ2Q/NbB5/r1N2p1K/P3R1n1/1p1r4/7b/1pr1Rq1r/n2qR2N b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 a5 Bg2 axb4 Bf1 Be7 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Ra4 Rh5 Ra6 Rh1 Ra8 Kf2 b5 e4 d5 c4 Kd7 a4 Kc6 e5 Kb7 a5 h5 e6 f6 e7 b3 e8N b4 c5 h4 g7 b2 g6 d3 Qc2 d4 Ne2 d2 Rf1 d1Q Ng3 h3 Nc7 d3 Qe2 d2 Na6 h2 Nc3 h1R Re1 Nd7 Qe8 Qb6 Nb5 Nh6 g8Q Nf7 g7 Ng5 Nb8 Ra6 Re2 Ka8 Na7 Bb7 Qh7 Rf8 g8R Rh5 Qh8 Rh7 Qe6 Rc8 Re8 Rh5 Qe3 Rh7 c6 Nc5 c7 Nb3 Rb1 Na1 Nh1 Qc5 Re5 Rh6 Re1 Qcc2 Nbc6 Rh2+ Kf1 f2 Qe4 Rh3 Kg2 f1R Re2 Rg1+ Kf2 f3 Ke3 f2+ Kf4 f1B Kf5 Bg2 Kg6 Rh2 Kg7 Bh3 Kh6 Rf1 Qg6 Rff2 Qge8 Rb8 c8R Qc5 Rc7 Rc8 Rd7 Rfg2 Rd8 Qf2 Qhg8 Rg4 Qgf8 Rc4 Qh8 Rc2 Rdd5 Qde1 Rd8 d1R Bf4 Rd4 Bg3 Qd2 Rbe1 Qd3 Rf5 Qd2 Bc7 Qd1 Rfe5
1qNq1r1n/bnBB2Q1/3p1R2/1P4r1/K1k4b/1B1R3r/1p2QRp1/1R1rr3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 f6 exf6 Kf2 f5 Ke1 f4 c4 Qb6 b5 Qf6 Na3 Rh7 Nc2 Bb7 Nb4 cxb4 d3 Bd5 c5 Bc4 dxc4 Rh8 Ra3 Qb6 Ra1 Qd8 Kd2 Ke7 Kc2 Ke6 h4 f5 e4 g5 c6 a5 c5 Ra7 e5 f3 h5 a3 Kb3 f4 h6 a2 h7 d6 c7 f2 c8R g3 c6 a4+ Kc2 b3+ Kc3 g4 Kb4 a3 c7 f3 Be2 f1R Qd2 b2 Kb3 f2 Kb4 Ne7 Bd1 Nd7 Nf3 Nc5 Rh6+ Ng6 Nd4+ Kd5 e6 g2 e7 g1B e8R g3 Re3 g2 Rd3 Be7 Qe3 Bg5 Bd2 Re1 Ba4 Rf8 h8Q Bh4 Qe7 Rf3 Qee8 f1R Nc6+ Bd4 Qh7 Rb7 Na7 Nh8 Rc1 Rf8 Rf6 Rh1 Qe3 a1R Qee7 Rb6 Qhg7 a2 Ka3 Rb1 Ba5 Rc6 Rc2 Rbd1 Rcf2 Rh3 Qe2 Nb7 Ra8 Rcc1 c8B Rc4 Bd7 Rc5 Bc2 Kc4 Nc8 Rg5 Bb6 Kd5 Bc7 a1Q+ Kb3 Qa7 Kb4 Qb8 Ra1 Qe8 Kb3 Qd8 Ka4 Kc4 Rb1 Ba7 Bb3+
4Nq2/3B4/n1rN1q2/1K2B1pn/nB5k/1pb1q3/NQ1P1bp1/qQrN2R1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 a3 f4 a4 Bf5 gxf5 Qc8 Ra3 Qd7 Rd3 Qd8 Rd6 h6 Rg6 h5 Rg4 hxg4 e4 Ke7 h4 Kf6 h5 Kg5 h6 c5 h7 b5 a5 b3 e5 c3 a6 c2 e6 b2 e7 f2+ Ke2 g3 e8Q c4 a7 f3+ Ke3 g2 f6 c3 f7 b4 Ne2 b3 Qc6 Nf6 Qd6 Qe7+ Kd4 Qe3+ Kc4 Na6 Qe6 Rc8+ Qc6 Bc5 a8N Nh5 Qe6 Rc6 Kb5 Rhc8 Rg1 Kh4 h8N g5 f8B Bb6 Nf7 Bc5 Na3 b1N Bb2 c1Q Qe5 c2 Nd6 Ba7 Nc7 Nc3+ Ka5 Na4 Kb5 Bd4 Nac4 Qa1 Qb1 c1B Nce8 Ba7 Bc3 Bb2 Nc1 R8c7 Bd3 f1Q Na2 f2 Bf5 Bd4 Bb4 Bbc3 Bg7 Bb2 Qh2+ Qh3 Nf6 Re7 Bd3 Re1 Qe5 Rc1 Nfe8 Qf3 Bh7 Qe1 Ne3 f1Q+ Bd3 Qf8 Nd1 Q1f7 Bf6 Bf2 Bf5 Qe3 Bd7 Q7e7 Qc3 Qd8 Be5 Qdf6 Qcc2 Bc3 Qcb2
1QR1Rn1n/1r4qb/b2N1B1R/N4P2/n2p4/k4pQp/q1N1b2n/4K1Nr b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Bc4 g4 Ba6 fxe6 Bd3 e5 Bf1 e4 f4 Nf6 h4 Ng8 Be2 Qc7 Bf3 gxf3 g4 Ra5 g5 Bh6 g6 Bg5 hxg5 Qd8 Nd2 Ra3 Nb1 Ra8 c4 h5 a4 e5 a5 Ke7 a6 Kd6 g7 Kc5 a7 d5 g6 b5 Qd2 e3 Qf2 h4 Nc3 b3 Qf1 Kb4 c5 d3 c6 d4 c7 e2 Ra5 e4 Nh3 b2 Kf2 e1N Qg2 b1B Qf1 d2 Qg1 d1B Ra3 e3+ Kf1 e2+ Kf2 Ng2 Ra2 e1N Qh2 Ne3 Bd2 Ba6 c8Q Qe7 Rc2 Be2 Qg3 Ka3 Nd5 b4 Ng1 b3 Nb4 Nh6 g8R b2 g7 Nd7 Qb8 Nf7 Rcc8 Nf1 Rge8 Nh2 g8N Bh7 f5 b1Q Bg5 Nf8 Nf6 Qa2 Ne4 Qe5 Nd6 Qg7 Qc7 Rb8 a8N Rb7 Nb6 Nc2 Qb8 Ne3 Be7 Nd1+ Ke1 Nc3 Bg5 Na4 Nbc4+ Kb3 Na5+ Ka3 Re6 h3 Rh6 Rg8 Bf6 Nh8 Nc2+ Kb2 Kf2 Qe7 Qg7 Beb5 Ne2 Qc7 Qg2 Rg4 Rf1 Qg7 Re1 Re4 Qg6 Rg4 Qg5 Rg1 Qg3 Rh1 Ng1 Bc4 Ree8 Be2 Ne3 Ka3 Ke1 Qgf7 Ng2 Qg8 Ne3 Qg7 Nc2+
1r1Q2Nr/4b3/k1BN1b1P/qQ1b4/r1B1n1p1/1N2p1bN/QpnR2K1/3q4 b - - 0 1 illegal: No possible last move, all moves rejected
n1Q1b3/K2kr3/b1Nn1BNp/1q1Bp1R1/1np5/2q2Q2/3Q2QP/3Nqr1q b - - 0 1 legal: proof: e4 a5 f4 d5 b4 dxe4 c3 axb4 f5 bxc3 f6 Qd3 Bb2 Qd4 Bc1 Qd8 a3 e6 a4 Be7 fxe7 g6 Ra3 Kd7 Rb3 g5 Rb5 Kc6 Rf5 Kd7 Rf4 gxf4 Ke2 f5 e8N b5 g4 c5 d4 c2 g5 e3 Kd3 b4 Kc4 b3 Kb5 e5 a5 h6 a6 e2 g6 e1Q a7 b2 d5 f3 d6 f4 g7 f2 Qe2 f3 Bg5 c1N Nc3 b1B Nd1 Na2 Nh3 Nf6 g8Q Na6 Bg2 f1Q Ng7 f2 Ne6 Qc7 Rg1 Ne8 Nd4 Bg6 Nf4 Rh7 Bf6 N2b4 Bd5 Re7 Rg5 Qh1 Nc6 f1Q Qd3 Bf7 Ng6 Bb7 Qf8 Qc8 Kb6 Nac7 Qd2 Ba6 Qg2 Qd3 Qd2 c4 Qg2 Qdc3 Qd2 Qd8 Qg8 Rc8 a8Q Rb8+ Qb7 Rc8 Qb8 Na8+ Ka7 Qa5 Qg2 Qb5 Qf8 Bg8 Bh8 Rd8 Qff3 Bf7 Bg7 Nec7 Bf6 Rf8 Qb6 Ne8 Qbf2 Kc8+ d7+ Kc7 Q2e3 Nd6 Qed2 Be8 Qfh3 Nb6 Bg7 Rf3 Bf6 Rf1 Qhf3 Na8 Qff4 Nb7 Qff3 Kd6 d8Q+ Rd7 Qc8 Re7 Qb8+ Kd7 Rg4 Nd6 Rg3 Qa5 Rg5 Qb5 Qc8+
2K2NNN/2n1b3/1r1kp3/3n4/RB3p1p/3qq3/bPQQ2Nn/Qn1r1q1B b - - 0 1 legal: proof: d4 b5 h4 c5 f4 cxd4 a4 g5 axb5 gxh4 e4 e6 f5 Ke7 e5 exf5 e6 Kd6 e7 f4 Ra6+ Kc7 Re6 dxe6 Bd2 Kd6 Bc1 Kd7 Kd2 h5 Kd3 a5 Ke4 f5+ Ke5 f3 e8Q+ Kc7 g4 a4 c4 d3 c5 h3 g5 f2 c6 h2 g6 f4 g7 a3 Nh3 h4 Bd2 a2 Ng5 a1Q Na3 Nf6 g8N Be7 Nc2 Ra2 Nf7 Na6 Bb4 d2 Bg2 f1N Ne1 Qd3 Qc1 d1N Qd2 Rh7 Nh8 Bb7 Qa8 Nc3 Rg1 Qd1 Bh1 Nb1 Ng2 Q1b3 Qa7 Ra1 b6+ Kc8 c7 Kd7 Qa8 Bd5 b7 Kc6 c8Q+ Nc7 Qa3 Bc4 Qa7 Nd5 Qaa8 Ra6 Qa7 Rb6 Qa1 Nfe3 Re1 Nf1 Re4 Qa3 Rd4 Ba2 Re4 Qab3 Rd4 Qe3+ Re4 Qbd3 b8N+ Kb5 Nd7 Kc6 Nf8 Rg7 Ne1 Rg1 Ng2 Ng3 Qa6 Rd1 Qa5 Nf1 Qa4+ Rb5 Qb3 Rb6 Qbc2+ Bc5 Ba5 Qf3 Ra4 Qh3 Bb4 Qhg3 Ne1 Qge3+ Be4 h1Q Qdc1 Qg3 Q1d2 Nh2 Bf3 Qhf1 Bh1 Qgf2 Ng2 Ne7 Kf6 Qfe3 Kg7 Ned5 Kf7 Na6 Ke8 Kc7 Bc3 Be7 Ba5+ Kd6 Bb4+ Ke5 Kd7 Nac7 Qb3 Qfe1 Kc8 Qef1 Ba5 Kd6 Qbc2 Nf3 Bc3 Nh2 Bb4+
rQBq1r2/QnR5/RNPp1k2/1K3NQ1/4n1b1/b1ppRr2/1Q3b2/2r3q1 b - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 h4 g5 e4 gxh4 exf5 a5 Bb2 axb4 Bc3 bxc3 Ke2 Kf7 Kd3 e5 a4 b5 g4 h5 f4 d6 g5 b4 a5 b3 c5 h3 Kc4 h4 g6+ Ke7 c6 d3 a6 e4 f6+ Ke6 f5+ Ke5 f7 b2 a7 e3 f6 e2 g7 e1B Ne2 h2 Ra6 h3 Na3 b1R Qb3 Rc1 Kb5 Be6 Ng3 Bf2 Nf5 Nd7 Qb2 Nc5 Be2 Be7 f8R Nb7 f7 Nf6 g8Q Ne4 Re8 Bg5 Bg4 Kf6 Nc4 Bd7 Rf1 h1R Nb6 h2 Re1 Bc8 Re3 Rhf1 Re7 h1Q Rc7 Qg1 Bh3 Bh6 Qg4 Rf8 Qh5 Rb8 a8Q Bg5 Qa7 Ra8 Nh4 Bg4 Nf5 Bf4 Qg5+ Ke6 Rf3 B4e3 Rg3 Bc5 Rf3 Ba3 Re3 Re8 f8Q Ke5 Qfg8 Rf8 Qh5 Kf6 Qe8 Qe7 Qeb8 Qd8 Qg5+ Ke5 Nh6+ Bf5 Ng8 Bh4 Rc8 Rf3 Rc7 Bf2 Nh6 Ke6 Qg2 Kf6 Qg8 Bh7 Bc8 Bf5 Qg2 Be6 Qg8 Bh3 Nf5 Bg4 Qg5+
1N1BQ1nq/N2K3Q/1p1P1Qbb/1n4p1/2Q4r/1R1pk3/1n1RN2q/3r1nq1 b - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 exf5 a5 d4 axb4 g4 h5 Be2 hxg4 Bd3 cxd3 Kd2 Kd7 Ke3 Kc6 Ke4 e5 a4 g3 f4 b3 h4 g6 a5 b6 a6 b2 d5+ Kc5 h5 g2 h6 Nd7 h7 Bh6 Nc3 b1N d6 Na3 a7 Nb5 Nge2 g1Q f6 Qh2 f5 c6 f7 g5 f8N Kc4 f6 c5 Kf5 e4 Ke6 e3 f7 Ne5+ Nd7 Qf8 Ng1 Kd4 Qb3 c4 Ra2 e2 Rd2 e1Q Nge2+ Ke3 Bb2 Qeg1 Qc2 Bb7 Nb8 Be4 Qa4 Qg7 f8Q Bg6 Qf6 Qf8 Na2 c3 Qc4 c2 Nb4 c1N N4c6 Nb3 Bc3 Ng4 Kd7 Nf2 Ba1 Nd1 Be5 Qgg2 Re1 Nb2 Rb1 Qgg1 Bc3 Na1 Be5 Nc2 Bc3 Na4 Rb4 Nb2 Be5 Ncd4 Rb3 Nf5 Bc3 Ng3 Be5 Ne7 Bc3 Nf1 Be5 Rg8 h8Q Rg7 Qh7 Qh8 Qf8 Rf7 Bf6 Ng8+ Be7 Rf2 Qf6 Rf4 Bd8 Rh4 Na6 Rb8 a8Q Rc8 Na7 Rc6 Nb8 Rc5 Qcf7 Rc1 Qc6 Rb1 Qcc4 Rd1 Qe8+
1Nrq1Q2/2QbR3/P4pqn/2N2k1B/1K1N4/R1pq1b1R/3n2rp/q3n2R b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 c6 g5 Nc3 g4 Nb1 dxc6 Nh3 c5 Ng1 c4 h4 g3 Bb2 Qg5 Bd4 Qh5 Be3 Bh6 Bf2 Bg5 hxg5 Qg4 g6 Be6 Qb3 gxf2+ Kd1 Qh3 g4 Qg2 g5 Qd5 Kc1 Bc8 Qd1 Qd8 Kb2 Ke7 a4 Ke6 d4 c5 e4 h5 e5 b5 d5+ Kf5 d6 b3 Kc3 f6 d7 b4+ Kb2 f3 e6 c3+ Kc1 c2 Kb2 c4 a5 h4 a6 h3 g7 h2 g6 Nc6 e7 Ne5 e8R Nh6 Qe2 Rg8 Ra3 c1N Bg2 f1Q Nc3 f2 Qc2+ Qd3 Nge2 f1Q Ne4 Nf3 Nc5 Ne1 Re7 Bb7 Bd5 Rc8 Bf3 Bc6 Bh5 Bf3 Ka1 b2+ Kb1 Qf8 d8N Nb3 Ka2 Nd2 Nc6 Qd8 Nb8 b1B+ Kb2 b3 Nd4+ Kg5 Qc3 Bc2 Qa5 Bcd1 Qc7 c3+ Ka1 b2+ Ka2 Rf8 g8R Ba4 g7 Bd7 Rh8 Rg8 Rh7 Qg6 Rh8 Qfd3 Rh7 Ne4 Kb3 Nd2+ Kb4 b1Q+ Rb3 Qa1 Ra3 Rf8 g8Q Re8 Ref7 Re2 Qf8 Rf2 Re7 Rg2 Re3 Bfg4 Rh3 Bf3 Qb7 Kf4 Re7 Kg5 Qa7 Kf4 Qc7+ Kg5 Ne2 Kf5 Nd4+
nN3N1b/r1BN1Q2/p1N1K2n/1q3nr1/1kpq4/n1p1B3/P1br3R/QB6 b - - 0 1 legal: proof: f4 e5 h4 exf4 b4 c5 bxc5 g5 Ba3 gxh4 Bb2 Qb6 Bc1 Qd8 c4 d5 Na3 dxc4 Bb2 b5 Rc1 b4 Rc3 bxc3 Bc1 Qe7 Qc2 Qf6 Qd1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 h5 Ke5 f5 g4 h3 e4 h2 d4 h4 g5 a6 g6 f3 g7 h3 Bg2 f4 Nb5 f2 Be3 f1Q Nc7 f3 Qa1 f2 Ne6 Kb5 d5 Qb1 c6 f1N c7 Kb4 d6 Nd2 d7 Ra7 Ne2 Nh6 g8N Bg7+ Nf6 Rg8 N2d4 Bh8 Nf8 Rg5+ Ke6 Bb7 e5 Be4 c8N Bc2 Bd5 Qb3 Ne7 Nb1 Ba8 Na3 Be4 Qa4 Bf5 Qb5 Nec6+ Kc5 Rf1 h1R Rf2 Rd1 Rh2 Rd2 Bg6 Qdb6 d8B Nd7 Bd3 Rg7 Bc7 Rg5 Bb8 Qd8 Bc7 Nb6 Nb8 Kb4 N6d7 Na8 Bg6 Ba4 Bb1 Bc2 Kd6 Qf6+ e6 Qf2 e7 Qh4 Re2 h2 e8Q h1N Ke6 Ng3 Qf7 Ngf5 Rh2 Qg4 Nb3 Qf4 Na5 Qd4 Nac6+
q2N4/NQ2b1Rp/3p1qn1/1n6/1NPN1r2/R5Kp/1k1b1rn1/n2r1QBR b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 a5 b4 axb4 g3 c5 Bd3 cxd4 Bb5 g5 Bf1 g4 h5 b6 Bh3 gxh3 g4 Ra3 g5 Ra8 g6 Bb7 g7 Bd5 Nc3 Bf7 Nb1 Bg6 hxg6 Ra4 Be3 Ra3 Bc1 Ra8 f4 e5 Kf2 Ke7 a4 Ke6 c4 b5 a5 e3+ Kg3 e2 a6 e1N a7 d6 Qd2 d3 Nf3 e4 Na3 b3 Ng1 b4 f5+ Ke5 f6 Kd4 f7 e3 Ra2 b2 Nb1 e2 Qh6 d2 Qh5 d1R Rh2 b3 Kg4 Be7 f8N Na6 Qf5 Nb4 Qf1 Nbc2 Kg3 Na1 Na3 Kc3 Be3 b1Q Nf3 b2 Ne6 Qf5 Bg1 b1N Nfd4 Ng2 Rh1 Qf6 Nac2 Na3 Nb4 Nb5 Ra6 Qc8 Ra3+ Kb2 Nd8 Rb8 a8Q e1B+ Bf2 Rb6 Qb7 Bd2 Be3 Qa8 Bg1 Nh6 g8R Nf7 g7 Ne5 Rf8 Rg8 Rf7 Rf8 g8N Ng6 Rg7 Rf7 Nh6 Ra6 Nd4c6 Rf8 Na7 Ra5 Rc3 Ra2 Ra3 Qg5+ Kh2 Rf4 Nf5 Qf6 Nd4 Rf2 Ra6 Ra3 Ra4 Raf3 Ra3 Rf4 Kg3
1Q1B1n1K/B2N2pn/1pr1nN1b/2q1p2Q/1qNB4/bR1BP1k1/3q4/1q2r3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 h5 g4 hxg4 a5 f5 a6 g3 Ra5 b6 Rc5 Bb7 axb7 a5 Re5 axb4 Re4 Ra6 Rf4 Ra8 Rg4 fxg4 Kd2 Kf7 Kd3 Ke6 Ke4 b3 h4 b2 f4 g2 c4 d3 h5 d2 c5 g3 c6 Ra1 h6 Qc8 Nf3 g1N h7 g2 c7 Nh3 Na3 g1B Nc4 Be3 Nfe5 d6 Rg1 Nd7 b8B Kf6 f5 b1Q+ Kd5 Bh6 e3 Qb4 Bd3 Ng5 Bb2 Ne6 Qh5 d1Q Ba7 Qdd2 Bd4 Re1 Ke4 Qa2 Rg2 Qab1 Rb2 d5+ Kf3 Qd8 c8N Qc7 N8d6 Qc8 Rb3 Qcc5 Qh2 Kg5 Ne8 Ngf6 Kg3 Rg8 h8Q Nh7 f6 Qca5 f7 Qac5 Qa2 Kh5 Qa5 Kg5 Kf3 Kh4 Nf6 Kh3 Qb5 Kh2 Kg4 Kg2 Kf5 Kg3 Bb2 d4 Kg6 Nd8 Bf5 d3 Bd4 d2 Bd3 d1Q Qa5 e6 Qb5 Bd6 f8B Qdd2 Be7 Re8 Qa6 Rg8 Qb7 Rf8 Qb8 Rf7 Nc6 e5 Qe8 Ne6 Bd8 Re7 Qh8 Re8 Kf7 Ndf8 Kg8 Nhg5 Qh7 Re7 Qg6 Rc7 Qh5 Ngh7 Kh8 Rc8 N6a5 Rc6 Nb7 Qca5 Nc5 Be7 Ncd7 Qac5 Bf5 Qcb5 Ba1 Q4a5 Qa8 Ba3 Bd4 Qc5 Qb8 Qab4 Bd3
2b1n3/2PQqB1p/N1r2b2/1R1q2B1/1qrQ2K1/N3r1pn/k2B2pB/4Qr2 b - - 0 1 legal: proof: b4 c5 h4 b5 d4 cxd4 g4 f5 a3 fxg4 h5 Qc7 h6 Qh2 a4 e5 Ra3 e4 Rd3 exd3 axb5 Qxh6 Ba3 Qf4 Bc1 Qh2 f4 Kf7 e4 Ke6 c4 a5 e5 g5 c5 Kd5 c6 Kc4 f5 d5 b6 g3 c7 g4 b5 a4 e6 g2 Kf2 a3 e7 g3+ Kf3 a2 e8Q a1Q f6 Ra4 f7 Nh6 b7 Qc3 b6 Qb4 Nh3 Bg7 f8Q Bf6 Rg1 Ng4 Bg5 Nd7 b8B Nf2 Qc1+ Kb3 b7 d2 Qg7 d1Q+ Be2 d3 Nf4 d4 Ba7 d2 b8B d3 Ne6 Nh3 Bae3 Ka2 Bba7 Qdb3 Qc6 d1R Na3 d2 Nc5 Rc1 Na6 d1R Bc4 Rf1+ Kg4 Rc2 Qee4 Re8 Bf7 Qd5 Bd2 Rc4 Qe6 Rc6 Qd4 Qe7 Qe1 Rac4 Qg6 Qb4 Qd3 Re3 Rh1 Nc5+ Qf5 Ne4 Qd7 Nd6 Bc5 Rf5 Rf1 Ne8 Rf4 Qg1 Re4 Qf1 Re5 Qd3 Bb6 Rf1 Rf5 Qdd6 Rb5 Qe7 Qe4 Ref3 Bg1 Re3 Bh2 Qd5 Qd4
q6B/1pk2b2/2BbQn2/3Qn3/qBP1R1N1/bN2Qr1r/K1pBqp2/5b2 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 b4 e5 g4 exf4 gxh5 a5 c4 axb4 Ra3 Qe7 Rf3 Qd8 Rc3 bxc3 e4 d5 h4 Kd7 a5 f5 a6 g5 e5 g4 e6+ Kc7 a7 g3 h6 d3 e7 g2 e8Q d2+ Ke2 f3+ Kd3 d4 Kc2 f2 Kb3 d3 h5 f4 h7 f3 h6 Be6 Nh3 g1B Bg2 f1B Nf2 Bh2 Ng4 f2 Ka2 Nd7 Bc6 Bf7 Qe6 Bhd6 Rh4 Ngf6 Qde1 d1Q Bd2 c2 Q1e3 Ne5 Bb4 Qd7 Nd2 Qe2 Nb3 d2 Qd5 Rd8 a8Q d1Q Qa6 Qd4 Bd2 Qa7 Bb4 Qa8 Bd2 Rg8 h8B Rg7 Bb4 Rh7 Bg7 Rh8 h7 Bfe7 Bh6 Rdf8 Bc3 Ba3 Bb4 Bd6 Bg5 Rhg8 h8B Rg7 Nh2 Rh7 Re4 Rh3 Ng4 Qde8 Qab5 Qa4 Qe6 Qea8 Qbd5 Rf3 Bg7 Rh8 Bf4 Rhh3 Bh8 Qd2 Qe2 Qe1 Bfd2 Qd1 Qed3 Qe2 Qe3
1N1KBb2/bp3kB1/4rN2/n1q2p2/1r4Qr/r1qN3P/p1Q3Q1/1QR1n1n1 b - - 0 1 illegal: No proof kernel
Nq1R2k1/P2KnrBb/p1rQ2r1/3p4/2Q4r/n4p2/1B1Rq1Q1/n2B1Bb1 b - - 0 1 legal: proof: f4 a5 g4 e5 d4 exf4 d5 h5 gxh5 c6 Nd2 cxd5 Nb1 d4 b4 axb4 a4 Qb6 a5 Kd8 a6 Ke7 a7 Nc6 Nc3 Qd8 Ne4 Nb8 Nc5 Ke8 Na6 bxa6 Kd2 g5 Kd3 f5 Kc4 Kf7 Kd5 b3 c4 d6 e4 b2 h4 b1N c5 d3 e5 f3 h6 f4 h7 f2 h5 f3 c6 d2 c7 g4 h6 g3 Ra2 g2 Ne2 g1R Nd4 Bf5 c8Q Bd3 Ne6 Rg6 Bb2 Na3 Nc7 Nd7 Kc6 Nc5 Rh5 Rb8 Na8 Rb7 Qc7+ Be7 e6+ Kf8 Qe2 d1Q Rd5 Nb3 Qd7 Bb1 Qc4 Na1 Qc7 Qb8 Kd7 Bd8 e7+ Kf7 Bg7 Qe2 Rad2 Bc2 Bb2 Bb1 e8B+ Kf8 Bf7 Ne7 Be6 Bd3 Bf5 Bb1 Bc2 Kf7 Re5+ d5 Bd1 Rc6 Re6 Rg8 h8B Rg6 Bhf6 Kg8 Rd6 Bc2 Bg7 Bd3 Bh3 f1R Bg2 Rh1 Bf1 Rh4 h7+ Kf7 h8Q Be4 Qh6 Kg8 Qg5 Bd3 Ke8 Bb1 Qd7 Bb6+ Qd8 Bg1 Qg2 Rg3 Rd7 Bh7 Rd6 Rg6 Rd7 Qf4 Qb6 Qb8+ Rd8 Rf4 Qbc5 Rb4 Qd6 Rf7 Qc2 Rd4 Qc4 Rh4 Kd7+
2B1bR2/1N1NP1n1/2B1NQp1/1n4n1/qQnp2Qp/3b4/kr2r3/bb3KQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 g4 Ne7 b4 Bh6 h5 Kf8 Be3 Nf5 Bf2 Bg7 Ra6 Ne7 Bh4 gxh4 g5 Ke8 g6 Bf8 g7 Ng8 Rg6 hxg6 c4 Ke7 e4 Ke6 h6 d5 b6 a5 b7 f5 c5 d3 b5 d2+ Ke2 f3+ Kf2 f4 e5 a4 h7 a3 c6 a2 b6 a1N c7 Nd7 b8Q Ra2 b7 Ne7 g8N Qe8 Nc3 Nc2 Bc4 Nd4 Kf1 f2 Qe1 d1N Bd3 Rb2 Kg2 f3+ Kh3 f1B+ Kg4 f2 Nge2 Nc5 Nf6 Qa4 Nb5 Nef5 Nd6 Bd7 c8B Nb5+ Kf3 Ng7 Be4 Ne3 Qa8 d4 b8Q Nc4 Bc6 Ne4 Nb7 Ba3 Qb1 Rg8 h8Q Re8 Qf8 Bh3 Rf1 Bf5 Kg2 Ng5 Qc1 Bb1 Nf4+ Kf5 e6 Re7 Qa5 Be8 Qba8 Ke5 Qd1 Bb4 Qg4 Be1 Qb4 Bc3 N6d5 Ke4 Nf6+ Ke3 Qa7 Kd2 Nd7 Kc2 Qf7 Be1 Qf6 Bc3 Qbc5 Kb3 Qb4+ Ka2 Qa8 Rf7 e7 Re2 Qb8 Ba1 Ne6 Rb2 Qbg3 Re2 Rh1 f1B+ Kg1 Rb2 Rh2 Bfd3 Rf2 Re2 Kf1 Rf8 Qg1 Rf7 Qe5 Rf3 Qed6 Rh3 Qe5 Rh2 Rf8 Rhg2 Qf6 Rb2+ Ke1 Rge2+ Kf1
4R3/R2PN1r1/BbpkR2K/6n1/bpq1r2Q/QNrpN2b/r4n2/1R2b3 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b3 a5 b4 axb4 c4 d6 c5 dxc5 d4 Nh6 d5 Ng8 Bb2 Na6 Be5 Nb8 Bd4 cxd4 Kd2 Kd7 a4 e5 f4 h5 g4 b5 f6 b3 f7 d3 Ke3 b2 f5 h3 f6 e4 Kf4 b4 Kg5 h2 a5 e3 d6 e2 a6 e1B a7 c6 Ne2 h4 Nc1 h3 Nd2 b1B Ncb3 Na6 Nc4 Rh7 Ne3 Nc5 Ra3 Bg7 f8R Bc2 Re8 Nh6 Re5 Qg8 f7 Ne4+ Kg6 Nf2 f8R Qd5 g5 Qc4 Qh5 Nf7 Rfe8 Bh8 Qh4 Rg7+ Kh5 Bd1+ Be2 Bc2 g6 Ng5 Rg1 h1R Kh6 h2 Bf3 Bd1 Bd5 Bc2 Rf1 Rg1 Ra2 h1R Bg8 Re7 g7 Rg4 Bf7 Re4 g8N Rg1 Bd5 Rg7 Ne7 Rg2 Nd4 Ba4 Nb3 Nd1 Ra1 Rc2 Rb1 Rc3 Rf7 Rb8 a8Q Nf2 Qa6 Ra8 Qa5 Bb5 Qa1 Ra2 Qb2 Ba4 Qa3 Qc5 Bc4 Qd4 Ba6 Qc4 Rb5 Ke6 Rb7 Ke5 Ra7 Bh3 d7 Kd6 Rf3 Rg8 Rf4 Bd4 Rf5 Rg7 Re5 Bb6 Re6+
Qn2n1BR/p3Qr2/3rk1BK/N2b1qpn/3b4/Q1P2R2/1n2p1rQ/r2B4 b - - 0 1 legal: proof: d4 b5 g4 g5 a4 bxa4 e4 c5 dxc5 f5 f4 fxe4 f5 h6 Bf4 Bb7 Nd2 Ba6 Ndf3 gxf4 g5 Bb7 g6 Bc8 Ng5 hxg5 Kf2 Nc6 h4 d5 b4 Kd7 b5 e5 f6 d4 f7 a3 c3 d3 g7 d2 b6 f3 Kg3 a2 Kg4 f2 h5 e3 h6 e4 Kh5 Ke6 b7 Rh7 b8Q Bb7 Ne2 Qa5 Qc1 d1N Qa3 Nb2 Nc1 Nf6+ Kg6 Bd6 g8B Ne8 f8Q+ Rf7 h7 Be5 Bd3 f1N Nb3 Ng3 Raf1 Bd4 Rf3 Qb5 Rh3 a1R Na5 Rg1 Rh1 Rg2 Qd8 Rb8 h8Q Ba8 Qh4 Rb6 Qb8 Bb7 Qa8 Nb8 c6 Qc5 c7 Rd6 Qf4 Bc6 Rh6 Nh5 Rh8 Qe5 Bc2 Bd5 Qh2 Qf5+ Kh6 e2 Qa4 e1R Qa3 Ra1 Bd1 e3 Qg7 e2 Qf8 Kf6 c8B Qf4 Bf5 Qe5 Bfc2+ Ke6 Bg6 Qf5 Qe7+
3q3b/R2N4/1Nb1B2Q/pRR2QPK/p3b1n1/Q4b1R/2kr1p1q/4brq1 b - - 0 1 legal: proof: f4 b5 e4 g5 h4 c6 d4 f6 a4 bxa4 g4 c5 h5 cxd4 e5 Nc6 f5 fxe5 Bf4 gxf4 g5 e4 Rh2 Ne5 Rh1 Ng6 hxg6 Ba6 Na3 Bb7 Nb1 Bc8 Ke2 h5 b4 d5 c4 Kd7 g7 Kd6 c5+ Ke5 c6 a5 f6 e3 Kf3 d3 f7 Kd4 c7 e5 b5 d2 b6 e4+ Kg2 e2 b7 Kd3 b8R f3+ Kg3 h4+ Kf4 e3 Rb2 h3 Qc1 d1Q Kg3 h2 Bh3 e1Q+ Rf2 d4 Be6 e2 Kg4 Nf6+ Kf5 Qed2 Kg6 e1B g8R Ng4 Qa3+ Kc2 Rg7 d3 Nc3 Bd7 c8Q Bc6 Rb1 Rh4 Rh7 Bg7 f8Q Bh8 Qh6 Ra7 Rb5 Rd7 Rf1 f2 Re7 Qf4 Nd5 d2 Nf3 Qa1 Rh7 d1B Ne5 Bf3 Nb6 Rd2 Ra7 Rh5 Ned7 Qb1 Rhg1 h1B Rg3 Qb8 Rh3 Qh2 Qc7 Rh4 Qe5 Bfe4+ Qf5 Bg2 Rd3 Bgf3 Rh1 Rh3 Rdd5 Rg3 Re5 Rg1 Red5 Rf1 Re5 Qg1 Rh3 Qb4 Red5 Qd6 Kh5 Qdh2 Rdc5+
2K5/2B2p2/1r2n2r/4p1R1/2n3Nq/NRNnqbPQ/1pRn2Qq/kn3R2 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 d3 e3 d2+ Kf2 gxf6 Kf3 f5 Ke2 f4 g3 d5 Ba3 h5 Kf2 h4 Bh3 d4 Qh5 d3 Bg2 h3 Bc1 Bg7 Qd1 Bd4 exd4 hxg2 Kf3 Kd7 Ke4 Ke6 h4 b5 c4 f3 a4 b3 a5 b4 h5 b2 a6 f2 h6 f1Q c5 b3 a7 Nc6 h7 Bb7 Ra3 Qe1+ Ne2 g1Q Qc2 d1N Bf4 d2 Bc7 Qh2 Rf1 Rb8 a8R Ne3 Nec3 d1N Qg2 Nf2+ Kf4 Nc4 d5+ Kf6 d6 Nd4 d7 Bf3 c6 Rb6 R8a5 Ke6 Rg5 Nf6 Qh1 N6e4 Qg2 Qg8 d8Q Ned2 Qc8+ Kf6 Qch3 Qd8 Raa5 e6 Na3 b1N Rab5 b2 Rb3 Qe2 Bb8 Ke7 c7 Kd6 c8N+ Kc6 Nd6 Qe1 Nf5 Kc5 Bc7 Qf6 Rg8 Qe7 Nh6 Qh4+ Ng4 Qe2 Nd5 Qe1 Rg5 Qc1 Rd3 Qe1 Nc3+ Kb4 Re3 Kb3 Re2 Rd8 h8R Rdd6 Rb8 Qc1 Nd5 Ka2 Nc3+ Ka1 Rb7 Ne3 Ke5 Nd3+ Kf6 e5+ Ke7 Rh6 Kd8 Ne6+ Kc8 Nec4 Ref2 Qe1 Rb8 Qe3 Re2 Ne4 Rc2 Ned2 Rb7 Rc6 Rb5 Rb6 Rb3
Q2QK3/p3b2Q/1b1b3R/2Bq3B/pp2bR1P/1n3N1Q/kB2nq2/2r2bn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 b5 e6 Nc3 exf5 Bg2 f4 Bh3 Nh6 Bf1 Ng8 d4 Qg5 d5 Qf6 d6 Qg5 Nd5 Qd8 c4 Na6 Nb4 cxb4 c5 Rb8 Qd4 Rb7 Qd1 Rc7 dxc7 Rh4 Bb2 Rh7 Bc1 Rh8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd4 f5 e4 g5 h4 f3 c6 f2 e5 g3 b6 g2 b7 g4 b8B f4 Be3 g3 Qc1 f3 Qd2 Be7 Bc4 f1Q Rh2 f2 Nf3 g1B Rc1 g2 Rc2 Bb7 Qc1 Nh6 Be2 Nf5+ Kd3 d4 Kc4 d3 Kb5 Kd5 c8Q d2 c7 d1N e6 Nc5 Qb2 Ng3 Qb1 Nb3 Rc6 Rg8 Rh3 Bh2 Bc5 g1B Qh7 Qe1 Ra6 f1B Rb6 Qd6 Qd8 Nf2 c8Q Rg4 Ra6 Rc4 Rc6 Qd7 Be5 Rc1 Bb2 Qd2 Bd3 Ne2 Bg6 Qe1 Bh5 Bhd6 Rg3 Ba8 Rg4 Nh3 Rf4 Bb7 Qa8 Bd4 Qac8 Nhg1 Qa8 Qf2 Qdc8 Bd8 e7 Bf6 e8Q Bb6 Qeh8 Qf7 Qh3 Bfe7 Rc8 Qe6 Rg8 Qe5 Rg6 Qed4 Rh6 Bc6+ Ka6 Kc4 Qhf8 Be4 Qfd8 Bb1 Kb7 Be4+ Kc8 Qd5 Ba3 Kc3 Kd7 Kc2 Ke8 Kb1 Bb2 Ka2 Rf8 Ba5 Rff6 Bb6 Rf4
r3R1Qr/Bp2p1rq/1N6/r1r1N1P1/1b2B3/p4B1b/B2nr1Q1/K1k3Qr b - - 0 1 illegal: No proof kernel
4K1n1/nN3NR1/R6Q/1rNn4/2r1PBpp/n1rpq3/qq1QR3/3bN1k1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Bh3 e4 Bg2 fxg6 Bh3 g5 Bf1 g4 h4 g5 Bg2 g3 Bh3 Bh6 Bf5 g4 Bg6+ Ke7 Bf5 Bg5 hxg5 Kf8 Be6 Ke7 Bc4 Ke8 Bd3 exd3 Kd2 Kf7 f4 Ke6 a4 Kf5 c4 Ke4 a5 h5 e3 b5 f5 d5 g6 g2 a6 b3 a7 b4 g7 h4 f6 b2 c5 b3 f7 Bd7 f8Q Nc6 Ra3 Qb8 Qf6 Rh5 Nf3 g1Q Ra6 Rf5 Na3 b1Q Nc2 b2 Ne5 Qa2 Qh6 Qb6 Qe2 Rc8 a8N Na7 Rh2 Ba4 Ne1 Bd1 c6 Rf3 c7 b1R+ Nc2 Rb5 Nf7 Rh3 Qe1 Kf3 Re2 Qf2 e4 Kg2 Nd8 Qc5 Nb6 Qca3 Nb7 Q3b2 Nd7 Kh2 Qf1 Rg3 Qh3+ Kg1 Ndc5 Qe3+ Ke1 Rd8 c8N Rd6 Bd2 Rc6 Ncd6 Rc7 Nf7 Rf3 Na4 Rc4 Bc1 Rf6 Qf3 Rfc6 Qff4 Rc3 Qfd6 R6c4 Qb4 Kh1 Nac5 d2+ Kf1 d3 Ne1 d4 Qa5 Bc2 Qd8 d1N Qd7 d2 Qdd6 Ne7 g8R d3 Rg7 Ng8 Qdf4 Qbb3 Qf2 Nb2 Qff4 d1N Qf2 Qd4 Bf4 Qba3 Qe3 Ba4 Qd2 Ne3+ Kf2 Bd1 Ne6 Qb6 Nec5 Nd5 Ra5 Nde7 Ke3 Kg1 Ra6 Q3b3 Bg5 Qba3 Kf4 Nd5+ Ke5 Qb4 Bf4 Qba3 Ne6 Qe3 Nec5 Ra4 Kd6 Nc4+ Kd7 Q3b2 Nbd8 Na3 Ndb7 Rac4 Ke8
2K3nb/B4n1N/4BB1Q/2p4p/R1B1kpQq/r1PQ3R/1q2bn1q/4q2b b - - 0 1 legal: proof: e4 b5 Ke2 a5 b4 axb4 g4 g5 h4 Ra3 f4 gxf4 g5 d5 Nc3 f3+ Ke3 Ra8 Nce2 dxe4 Nd4 Ra6 h5 f2 Ndf3 Rg6 hxg6 exf3 Kf4 Kd7 Ke5 Kc6 d4 h5 a4 f5 g7 f4 g6 b3 a5 b4 c3 b2 a6 b1Q a7 b3 a8B+ Bb7 Ke6 b2 Rh2 Nd7 Bh3 f1Q Bg2 Qf2 Qc2 Ne5 Rh3 Nf7 Bf1 Qh2 Be3 f2 Bc4 f1B Qd3 Be2 Ra4 Qe1 Nf3 b1Q Ng5 Qb4 Nh7 Qb2 Kf5 e5 d5+ Kd6 Ba7 Bc6 Bb7 e4 Bc8 e3 Bd7 Qdh4 Be6 Nf6 g8Q Bg7 Qb8 Ng8 Qb6 Be5 g7 Bf6 Kg6 Ke5 d6 Bh1 d7 c6 d8B c5 Qd7 Ke4 Qdb5 Bd4 Bf6 Ngh6 Q5a6 Ra8 g8Q Be5 Qgc8 Ng8 Kg7 Bd4 Kf8 Be5 Ke8 Bd4 Be7 Bg7 Bf6 Bh8 Bb8 Ra7 Qab5 Ra6 Kd7 Ra5 Ba7 Ra6 Rb4 Ra3 Ra4 Ra2 Bg4 Qec1 Be5 Bd1 Qh6 e2 Bf6 e1N Kc7 Qe3 Qbd7 Nd3 Qcd8 Nf2 Kc8 Bdf3 Qd1 Ra3 Bge6 Bg4 Qg1 Qe1 Qd7 Bd1 Qg4 Be2 Qd3+
1kq1q1QB/1Brr1B2/3RpP1p/1p1qbnR1/1Q3n1n/1N1R4/1r3q2/R2K4 b - - 0 1 legal: proof: f4 g5 g4 f5 d4 c5 e4 cxd4 Nc3 b6 Nce2 fxe4 f5 Ba6 Nf4 gxf4 b4 Be2 g5 a5 h3 Bg4 hxg4 axb4 a4 d5 c4 Kd7 a5 Kc8 c5 e6 a6 b5 a7 b3 f6 h6 g6 d3 g5 e3 c6 e2 g7 f3 c7 d2+ Kf2 e1N g6 b2 Ne2 b1Q Ng3 d4 Qe2 d1Q Qd3 Ne7 g8Q Qe8 g7 Ng2 Ra6 Nd7 Qc3 d3 Ba3 d2 Rh3 Qbc1 Be2 Nf4 Nf1 Ne5 Qb4 Rh7 Rd6 Nf5 Rg3 Kb7 c8B+ Kc7 Rg5 Neg6 Bb7 Ngh4 Rg3 Rd8 a8R Rd7 Raa6 Kb8 Bd3 Nd4 Bg6 Ndf5 Bf7 Qcc8 Rh3 Qdc2 Ra4 d1Q+ Nd2 Qa2 Raa6 Qdb3 Ke1 Qd5 Kd1 f2 Rd3 Qb2 Nb3 f1R+ Qe1 Rf2 Qb4 Qbd4 Rdb6 Qcc5 Qa4 Nf3 Bh5 Q4e5 Qf7 Qec3 g8R Bd6 Rg5 Re7 Qg8 Be5 Ra7 Qcc8 Ra5 Ref7 Bf8 Qb2 Rd6 N3h4 Bg7 Rc7 Bh8 Rhd7 Bf7 Qbd4 Raa6 Rb2 Qb4 Qf2 Ra1
K4n2/B1b1pB2/2B1P2q/R2B4/NQ1pn3/2r1bRpn/1q1QqRn1/k4b2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 h4 b5 a4 g5 Bd2 g3 Be3 g4 Na3 bxa3 Bc1 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Bb7 Ra2 Ba6 Ra1 Bc8 Kd2 Kf7 Kd3 Ke6 Ke4 d5+ Kf4 h5 c4 b4 e4 b3 c5 b2 f3 b1Q g6 a2 g7 d3 e5 g2 a5 h4 a6 g3 c6 d2 c7 h3 a7 h2 a8B Nd7 Ne2 g1N Nc3 Ba6 c8Q Nf6 Na4 Ne4 Bg2 Bf1 Qc5 Qb2 Bc6 Nh3+ Ke3 Qdb8 f4 Q8b5 g8B+ Kf5 e6 Bh6 Qe1 Nf8 Qb4 d1N+ Kf3 Ne3 Qed2 Kf6 f5 Ke5 f6 Qa6 Rg1 h1Q f7 Qh2 Bh1 Qd3 Rg2 Bf4 Qb8+ Kd4 Rf2 Bc7 Qb6+ Kc4 Qd4+ Kb3 Bg2 Nd7 f8R Qdc2 Rf4 Nf8 Bf7 Rh4 Bh1 Ng2 Qc5 Qh8 Bb2 Qh6 Bd4 Qb2 Qc4+ Ka3 Ba7 Rh5 Rf5 d4 Ra5 Rc5 Rb1 a1B Qcb4+ Ka2 Re1 Qc2 Re3 Bb2 Rb3 Bc1 Re3 Qb2 Rd3 Nf6 Rb3 Ne8 Ke4 Ka1 Rbf3 Rc3 Kd5 Nd6 Bb5 Re3 Kc6 Ne4 Kb7 Rd3 Bc6 Rc3 Qd3 Be3 Ka8 Nh4 Qd2 Qg2 Rff5 Qf3 Bg2 Qe2 Bf3 Ng2 Rf6 Nc5 Bfd5 Ne4 R6f3
1R4r1/3pp2r/1r1BB3/q6R/B1KQ3p/rQbPbbq1/k2R3q/4NnB1 b - - 0 1 illegal: No possible last move
bb1NR1r1/1p1p1Qb1/NQ3nqn/KPN2n2/6p1/4q2B/B1N3b1/2Qk2q1 b - - 0 1 illegal: Other
Q1Q3K1/bb3p2/2Nr1PnB/Nnp2b2/3bBr2/2nr4/2pR3b/Q1k1N1N1 b - - 0 1 legal: proof: c4 g5 e4 d5 f4 dxe4 b4 a6 a4 Bf5 g4 Qd6 h4 Qd5 h5 Qd6 b5 Qg6 hxg6 Bc8 f5 axb5 Ra3 bxc4 Rf3 c3 Rf4 gxf4 g5 Be6 Be2 Bd7 Bf1 Bc8 Kf2 Kd7 d4 Kd6 a5 Kd5 g7 h5 a6 e5 a7 b5 g6 h4 f6 b4 Qh5 b3 Ba3 c2 Bc5 f3 Ke3 b2 Rh2 h3 Bb6 f2 Ne2 Kc4 d5 Kb3 d6 Bf5 d7 Bd6 d8Q Ne7 g8Q Na6 g7 Ng6 Qd7 Rd8 Na3 b1N a8N Kb2 Nc1 Nc3 Be2 f1R Bd3 Rf4 Rd2 h2 Qd1 h1B Ne2 c6 Bd4 Nc7 Ng1 Nb5 Nb6 Rh7 Qc8 Rh3+ Qf3 Rd7 Nbc4+ Kc1 Na5 Bb8 Qh7 Ba7 g8N Rd6 Ne7 Rg3 Bb6 Bg2 Qh1 Rh3 N3c4 c5 Nec6 Rg3 Bd8 Rh3 Be7 Rg3 Bf8 Rh3 Bh6 Rg3 Kf2 e3+ Ke1 e2 Kf2 e1B+ Ke3 Rh3 Nb2 Bg3 Be4 Bh2 Nd3+ Kb1 Ne1 Kc1 Rd4 Rg3 Kd3 Rh3 Kc4 Rg3 Rd2 Rh3 Qf2 Rhd3 Qd4 Bf3 Bd5 e4 Qe5 e3+ Be4 Nb1 Qa1 e2 Qa8 Bg3 Qh3 Bh2 Qg4 Bc8 Qh3 Bb7 Qe6 Bg4 Qec8 Bf5 Qd4 Re6 Kd5 Re3 Ng2 e1B Qa1 Bf2 Ne1 Ref3 Ng2 Bd4 Ne1 Re8 Rg2 Rd3 Rd2 Na3 Kd6 Re6+ Kd7 Nb5 Kd8 Rd6+ Ke8 Ne5 Kf8 Ng6+ Kg7 Rff3 Kg8 Rf4 Qa2 N1c3 Qa1+
K1Qn2bn/2b1PN2/Qp3R2/1p1n3p/2bb3q/4b3/bR3NB1/1k1NQrQ1 b - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 f5 b5 fxg4 b6 axb6 Qd3 e5 Qd1 b5 h4 e4 Bd2 g3 Bg2 e3 Kf1 exd2 Bh3 Ra6 Kg2 Rb6 Kf3 Rc6 Bf1 Ra6 Kg2 Ra8 Rh2 g5 Na3 g4 Nb1 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Be7 Rh5 Bc5 Rh1 Bf8 c4 Ke7 e4 Ke6 a4 Ke5 c5 d5 c6 h5 g6 b6 g7 d3 f4+ Kd4 c7 Ne7 g8Q Nbc6 a5 Be6 c8N Ng6 a6 Qh4 e5 Bd6 f5 Bc7 f6 Nd8 Qe2 d1B a7 d2 a8Q Bb3 f7 d1B f8Q Bc4 Ra2 Bdb3 Rb2 Ba2 Qa6 Rh6 Rh3 Nh8 Qe1 Rf6 Nd6 Rf5 Qg5 Bg8 e6 Rf3 e7 Rf4 Re2 Kd3 Nc3 d4 Nd1 Rf6 Re6+ Kc2 Rh2 d3 Nh3 d2 Nf7 Kb1 Qge3 Rf3 Qg1 Rf4 Rf6 Rf5 Nb2+ d1N Nf2 Rf3 Qe8 Rf4 Qd7 Rf5 Qdc8 Rf4 Qe3 Nc3 Nbd1 Nd5 Qe1 Rf3 Be2 Rf5 Bf3 Bcb3 Kf1 g2+ Ke2 g3 Kd3 Rf4 Be4 Bc4+ Kd4+ Kc1 Ng4 Rf1 Bf3 Kb1 Ke4 Bf4 Ngf2 Be3+ Ke5 Bd4+ Kd6 Be3 Qh1 g1B Rg2 Bh2 Qg1 Nc3 Kc7 Nd5+ Kb8 Bd4 Nh1 Be3 Rd2 g2+ Ka8 Bc7 Nhf2 Bd4 Qh2 g1B Bg2 Be3 Qg3 Bh2 Qg7 Bhe5 Qg3 Bb2 Qh2 Ba1 Qg1 Bad4 Rb2+
3bR3/N4b1q/1QP1R2R/N5Rq/4Q3/ppbBKb1q/pk3rQq/n5r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 f6 exf6 Kf2 f5 Ke1 f4 c4 Qg5 d4 Qf5 b5 Rh4 d5 Qg5 Bd2 Qd8 Bb4 cxb4 c5 Nc6 dxc6 Rh8 Kd2 Ke7 e4 Ke6 h4 Ke5 b6 Kd4 c7 f5 b7 a5 b8R d5 c6 g5 e5 f3 h5 b3 e6 g3 h6 f4 h7 f2 e7 f3 e8R a3 Rh4+ g4 Re1 a4 Rh5 g2 Ra2 g3 Bd3 f1B Rb6 f2 Bf5 Be6 c8Q Be2 Rh3 f1Q Ra1 a2 Qb8 a3 Bg6 Bb4+ Nc3 Bf3 Ra6 Nh6 Be4 Qd7 Ra5 Rg8 Re3 Nf5 Qc8 Bf7 Re2 Ne3 Ra4 Nc2 Qb7 Raf8 h8Q+ Rg7 Rc1 Na1 Ra5 Be7 Rh7 Bd8 Rh6 Qf5 Qb8 Qh7 Qg8 Kc4 Qe1 d4 Bf5 d3 Ke3 d2 Qb6 d1Q Bc2 Qd5 Nb5 Qh5 Na7 Rg4 Rd1 Rg6 Rdd2 Kc3 Rd6+ Kb2 Re6 Rg7 Rg5 Rg6 Nh3 g1Q+ Nf2 Qgh2 Ng4 Qfh3 Ne5 g2 Qh4 Rg7 Qe4 Rg6 Re1 Rg7 Bd3 Rg6 Kd4 g1B+ Re3 Bf2 Qg7 Be1 Nc4+ Kc1 Na5 Kb2 Qg8 Bd2 Re1 Bc3+ Ke3 Rg7 Rge5 Rg2 Rg1 Rf2 Rgg5 Re8 Qgg6 Rg8 Re8 Rg7 R5e6 Rg8 Rd5 Rg7 Qg2 Rg4 Rg5 Rg3 Qh1 Rg1 Qg2
4N3/rQBrQ1Bb/qq2n1p1/bPp2p2/3QB3/1kR1p2q/7Q/n1K1N2r b - - 0 1 legal: proof: f4 d5 b4 e5 g4 h5 a4 hxg4 c4 dxc4 Ra3 b5 axb5 exf4 e4 Bb7 Rd3 Bc8 Re3 fxe3 h4 Ke7 d4 Ke6 h5 a5 h6 c3 e5 Kd5 b6 g3 b7 g2 h7 c2 b5 a4 e6 a3 e7 a2 e8Q a1Q Bd3 Bf5 Bb2 c1R Rh2 Qa6 Ba3 Ra7 Nd2 Ne7 Ngf3 Ng6 Nc4 Nf4 Bb2 Ne6 Nd6 Nc6 b8Q Nb4 Qe7 g1Q+ Ke2 c5 Ne1 Nc2 Ne8 Qdb6 Be4+ Kc4 d5 Kb3 d6 Qh1 Qd4 Rd1 d7 Na1 d8B f6 Rf2 Qh3 Qbb7 Bg6 Bc7 f5 Ng2 Rh1 Ne1 Rg8 h8Q Bh7 Kd1 g6 Re2 Bg7 Rc2 Bf6 Kc1 Rg7 Qed6 Rd7 Qe7 Bh4 Qhe5 Bg5 Qh2 Bf6 Qd1 Bh4 Bg7 Bf6 Qdd2 Bc3 Qd4 Ba5 Rc3+
3K1n2/p1p1QN2/2bQ1pNn/rNkBr3/b7/1R1P1Q2/1Rn1Q1bp/q2q4 b - - 0 1 illegal: No possible last move, all moves rejected
KR1r2N1/5N2/n4n2/1q3p1Q/R1Q2p1r/Rn4bB/2P2p1p/b2RQnkr b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 f5 bxa4 f6 g5 Ra3 g4 Ra2 exf6 Ra3 f5 Ra1 f4 Be3 g3 Kd2 Qf6 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Qd8 Kd3 Ke7 Ke4 Kd6 b4 a5 g6 h5 b5 Kc5 b6 a3 b7 a2 e3 a4 g5 d3 g7 d2 g6 h4 Bh3 a3 Nf3 Nf6+ Ke5 Qa5 g8Q Na6 b8R Qb5 Qc1 d1N e4 Ne3 g7 Nf1 Nbd2 d5 Rg1 d4 Ng5 d3 Qe1 Be7 Qh7 Rd8 g8Q Ra7 Rd1 a1N Qh5 a2 Rg3 Nb3 Re3 Qa5 Rb4 Qb5 Ra4 Rc7 Ndf3 a1B+ Nd4 d2 Rc3+ Qc4 Nf5 Rb7 Nh6 Rbd7 Kf5 Kd4 e5 Bb4 e6 Qb5+ Rc5 Rd6 e7 Re6 e8R Re2 Rf8 Ke3 Re5+ Ne4 Ra3 Be7 Ra2 Rd7 Rb1 d1R Qb4 Nfd2 Bg2 h3 Qhg6 h2 Ra3 f6 Ke6 f5 Rb8 Rc7 Bh3 Rh1 Rd1 Bd8 Q8e8 Rh7 Ngf7 Bh4 Ng8 Bg3 Qee7 Rh4 Qh5 Ree1 Rd5 Nf6 Rd4 Re2 Qc7 Ree1 Kd6 Re2 Qba5 Ree1 Rda4 Re2 Qh6 Kf3 Qc4 Nf1 Qe1 Re8 Qg6 Nb4 Kc7 Rd8 Bg4+ Kg2 Bh3+ Kg1 Qh5 Qe8 Kb7 Qb5+ Ka7 Na6 Ka8
7n/4R1Q1/K1R1Brp1/2qrPB1N/k2b2Rn/3np1p1/1B3p2/1bRbQ1n1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 e5 f4 h5 Nc3 exf4 e4 hxg4 Nd5 b5 Ne3 dxe3 axb5 Rh4 Qe2 Rh7 Qd1 Rh8 Ke2 a5 Kd3 f5 Kc4 d5+ Kd3 Kd7 h4 f3 c4 g3 b4 a4 b6 Kc6 c5 Kb5 c6 f4 b7 f2 e5 d4 c7 f3 h5 a3 h6 a2 h7 g6 Rh4 Ra5 Nh3 Nh6 Qe2 Nf5 Ba3 Ka4 Kc4 d3 b5 d2 b6 d1B Rf4 Qe7 Bd6 Nc6 b8R Nh4 b7 Bf5 c8B Nd8 Be6 Nf7 Qe1 Rd5 Rc1 a1N Bd3 f1N Re8 f2 b8R Nb3 Rb6 Nc5 Rg4 Nh2 Rc6 N2f3 Nf4 Ng1 Nh5 Qa7 Be4 Nd3 Ba3 Bc5 Re7 Bd4 Bb2 Rf8 h8Q Qb6 Qh7 Nh8 Qg7 Rf6 Rg5 Bfg4 B4f5 Bgf3 Rg4 Bc2 Rg5 Bfd1 Rg4 Bb1 Rc2 Rb5 Rc1 Nc5 Kd5 Nd3+ Kd6 Qa5 Kd7 Rd5+ Kc8 Qc3 Kb7 Qc5 Ka6
N1N5/5rnR/2N1R1pp/b4Q1n/1p1R3Q/b1Nk1KnP/np1b4/B3r1q1 b - - 0 1 legal: proof: d4 f5 b4 a5 g4 axb4 f4 b6 Kf2 c5 e4 fxe4 f5 cxd4 Kg2 e3 Bc4 Ba6 Bd5 Bd3 f6 Bf5 Bf3 d3 Be2 dxe2 gxf5 Ra4 Qd2 Ra3 Qd1 Ra8 c4 b3 a4 Kf7 c5 e1N+ Kg3 d5 a5 e5 h3 e4 c6 e2 a6 b5 c7 g6 c8N h6 a7 e3 Bd2 d4 Rh2 d3 Rh1 Qd4 Nf3 Rh7 Rg1 Nc2 Bb4 e1B+ Kg2 e2 Bd6 d2 Bf4 Na6 Ne7 Nc7 Ra3 Ne8 Ra2 Nb4 Ra4 Qe3 Qc2 d1N Nd4 Nf2 Ndc6 Nh1 Qe4 Bd2 Re1 Qg1+ Kf3 Ng3 Nc8 Rb8 a8N Na2 Bg5 Ba3 Qh4 Rb7 Be3 Re7 Bd4 Ba5 Rc4 b4 Ba1 b2 Nc3 Re4 Rd4 Re5 Rd6 Re4 Re6 Re5 Rd1 e1B Rd4 Bd2 Rf4 Re1 Rfe4 Kf8 f7 Kg7 f8R Ngf6 Rh8 Nfh5 R6e5 Bg5 Re7+ Kf6 R7e5 Rd7 Rh7 Neg7 Re6+ Kf7 f6 Bd2 Re8 Re7 Ne5+ Ke6 f7 Rb1 f8Q Re1 Na7 Kd6 Qf5 Kc5 Nc8 Rb7 Re6 Rf7 Nd5 Kb5 Nc6 Kc5 Nd4 Kc4 Nc6+ Kd3 Nc3 Be3 Qg5 Bc1 Qh4 Bd2 Rd4+
8/1p3BN1/1bkRnr2/4rpq1/1B1r1r2/2nBNp1n/1p1PQ2N/1Q1NKb2 b - - 0 1 legal: proof: b4 a5 h4 axb4 c4 c5 a4 g5 f4 gxh4 f5 d5 cxd5 c4 f6 exf6 Ra2 f5 Rb2 f4 Rb3 cxb3 g4 Kd7 e4 h5 d6 b2 a5 h3 g5 h2 a6 h4 e5 f3 g6 h3 a7 b3 e6+ Kc6 g7 Rh4 e7 Nd7 e8B Nh6 g8Q Rf4 Qg5 Ng4 Qf5 Qg5 Qe2 Nf2 Nc3 b1N Ba3 b2 Nd1 Nc3 Qb1 f5 Bg6 Nc5 d7 Ne6 Bf7 Bc5 Bb4 Rb8 a8N Bb6 Nc7 Ra8 Qa1 Ra5 Qb1 Re5 Nd5 Rd4 N5e3 Rf4 Qed3 Rd4 Ne2 Rf4 Rg1 h1R Rg2 h2 Ng3 Nh3 Qa6 Rg1 Qe2 h1R d8N+ Kc7 Ba5 Bd7 Bb4 Bb5 Rh2 Ng7 Ne6+ Kc6 Nc7 Bd3 Ne8 Ne6 Ng7 Rd4 Ne4 Rg2 Nef2 Rgg4 Rg2 Rgf4 Nfg4 Rg1 Nh2 Ba6 Rg4 Rg2 Rh4 Rgg4 Rh8 Rh4 Rd8 Rh6 Qg2 Rg6 Bd3 Rf6 Rd6+ Kc7 Bc2 Be2 Bd3 Bf1 Rd8 Kc6 Qe2 Rh4 Rd5 Rhf4 Rd6+
5q1B/1B2B1r1/n4BQ1/pq3R2/1bq2q2/2p2ppN/bP2nN1k/2rQKN2 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Ra2 h4 Nb1 g2 Ra3 Bd7 Rd3 Bc8 Rg3 hxg3 e4 Ke7 h4 Ke6 d4 g5 b6 f5 d5+ Ke5 h5 c5 h6 a5 b7 c3 d6 c4 d7 g4 h7 f4 Rh4 f3 Qe2 c2 Qd3 c3 Qd2 Ra7 Qd1 Bb4 Na3 Na6 b8N Qf8 d8B Nh6 Bdg5 Rg7 Nh3 g1Q Nb1 g2 Be7 Qd4 Rh5+ Nf5 Bcg5 g1Q Nd2 c1Q Bh4 Rhg8 h8B Qc4 Rg5 Qgc5 Nd7+ Ke6 e5 Q5b5 Bf6 Nd4 Rf5 Ne2 Nc5+ Kd5 Nce4 Be6 Bhg5 Kd4 Bh4 Ke3 Nef2 g3 Be7 Rh7 B4f6 Rgg7 Nf4 Bd5 e6 Rh1 N4h3 Qe4 Bh4 Ba2 Bef6 Qf4 e7 Qb1 e8Q+ Qbe4 Qf7 Qec4 Qg6 Qcg8 Qa1 Ng1 Bfg5 Qd3 Be7 Nc5 Nfe4 Qdd5 Bb5 Na6 Bc6 Qb5 Bb7 Qgc4 Kd1 Ne2+ Kc2 Nc1 Bhf6 Ke2 Nef2 Rd1 Nb3 Kf1 Nd2+ Kg2 Nf1 Ne2 Qc1 Re1 Qd2 Rb1 Qc1 Ra1 Kd1 Rb1 Ke1 Ra1 Qd1 Rc1 Ne3+ Kh2 Nf1+
2rB2bK/qQr2QN1/P2QQ1R1/1B1r1r2/2pNn1N1/2qn2p1/1p4pk/2b5 b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 f4 e5 Qb3 exf4 Ra2 g3 Ra3 g2 Qd1 Nf6 Rc3 Ng8 Rg3 fxg3 h4 Kd7 d4 Kd6 Kd2 f5 Ke3 g5 a5 b5 h5 c5 h6 b3 h7 f4+ Ke4 b2 a6 g4 Nh3 g1R Nd2 b1R Qe1 b4 Nb3 f3 Nf2 g2 Bg5 Qf6 Rh6 Rc1 Rg6 Bh6 e3 g3 Ng4 f2 Bb5 f1Q Qf2 Ke7 d6+ Ke6 d7 Nc6 d8Q Ne5 Qc7 Nd3 Qb7 c4 Qe2 Qf2 Qe1 Ra7 d5+ Kd6 Qe2 Be6 Nd4 b3 Qf7 Qg7 Bd8 b2 Qef3 Kc5 d6 Rcd1 d7 Rgf1 Qe2 Bf4 Qf3 Bd5+ Kf5 Rc7 e4 Bc1 e5 Nf6 e6 Ne4 e7 Qc2 e8Q Qc3 Qee6 Rf8 h8Q Rd2 Bg5 Rfc8 d8N Rdd1 Qee8 Qh7 N8e6+ Kd6 Ng7+ Kc5 Qfd7 Bg8 Qdf7 Rd2 Ke6 Rdd1 Qf6 Rf5 Qfd8 Rd2 Qdd7 Rd1 Bd8 Qh4 Nh5 Nb4 Ne2 Qh2 Ke7 Qg1 Kf8 Rb7 Qh6 Rdd5 Rf6 Nd3 Kg7 Qgd4 Qf4 Ra7 Qde6 Rac7 Kh8 Qf2 Ng1 Kd4 Q8c6 Qe3 Qb7 Qf2 Qfd6 Qe3 Nh6 Qf2 Nf3+ Ke3 Ng7 Qg1 Qee7 Kf2 Ng4+ Kf1 Qee5 Qa7 Nd4 Kg1 Qee6 Kh1 Rg6 Kg1 Nf6 Kh2 Ng4+
B1R1b2q/2Qb3p/4Q3/P2bp2n/2r1Rk2/1KpR2p1/3Q4/RNBr1qbb b - - 0 1 legal: proof: g4 d5 d4 a5 c4 dxc4 h4 g5 e4 f6 b4 axb4 d5 Nd7 Nd2 Nb6 d6 Nd5 exd5 gxh4 Ndf3 f5 g5 Kf7 Nh2 Ke8 Ng4 fxg4 Kd2 Kd7 Kc2 e5 f4 c5 a4 b5 a5 g3 f5 c3 g6 b3+ Kd3 b2 Kc2 b1B+ Kb3 h3 g7 b4 f6 c2 f7 c4+ Kb2 c3+ Kb3 h2 Nf3 Ba2+ Ka4 b3 Qe1 b2 Rg1 h1B Qd2 b1B Bg2 Nf6 g8Q Nh5 Re1 Ra7 Kb4 Rc7 Re3 Rc4+ Ka3 Be7 f8R Qe8 Qg6 Bd8 Qf6 Bb6 Qh6 Bb3 Rg8 B1a2 Qf6 Ba4 Qe6+ Kd8 Rf8 Bcd7 Rg8 Kc8 Rf8 Kb7 Rg8 Qa8 Rc8 Be8 d7 Ba7 d8Q Bad7 Re1 Bg1 d6 Rf8 Re2 Rff4 Re3 Rfd4 Qf2 Rd1 Qd2 Rh4 Qde7 Bd5 Qd8 Rc4 Qc7+ Ka6 Kb3 Kb5 Ba3 c1Q Bb2 B7c6 d7 Kc5 d8R Qb1 Rd6 Qd3 Bc1 Qf1 Qf2 Bd7 Nd2 Kd4 Nb1 Be8 Rdd8 Bcd7 Qd2+ Qd3 Rf3 Ke4 Re3+ Kf4 Qh3 Bdf7 Qe6 Qf1 Bb7 Bdc6 Rdd3 Bcd7 Qh3 Bfd5 Qe6 Qa6 Ba8 Qd6 Qb7 Qf8 Qc7 Qh8 Re4+
3q4/2r1nPpr/N2k3B/1rQNpp2/Qr4p1/1nK2b2/2Q1q1rR/Q1R2R2 b - - 0 1 illegal: No proof kernel
2R1rbRK/1n3Q2/1R2PB1k/4p1b1/3bqn1N/2p4b/1qpNp1R1/N2q3Q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 bxc4 b4 dxe4 g5 a6 b5 h6 b6 hxg5 Qc2 g4 Qa4+ Bd7 Qd1 Bc8 f4 e5 f5 Kd7 Bd3 Rh6 Bc2 Ke8 Ba4+ Rc6 Bb5 axb5 Kf2 Re6 fxe6 Ra3 Ke2 Rh3 Ke1 Rh8 Ke2 c5 Ke3 f5 h4 g5 d4 c3 a4 f4+ Ke2 b4 d5 g3 d6 c2 a5 b3 h5 g4 b7 b2 h6 e3 Kd3 f3 Ke4 c4 Kf5 c3 Kg6 f2 h7 f1Q a6 e2 a7 g2 a8R g3 Qd3 Nd7 b8N Qf4 R1a6 Bb7 Rb6 Ngf6 Nf3 g1B Nbd2 b1Q Na6 g2 Nh4 Nh5 Rh2 Bd4 Rc8 g1B Nc5 Bge3 Qf5 Qe4 Rg2 Qb2 Ncb3 Bg5 Na1 Nc5 d7+ Ke7 Rb5 Ba8 Rb3 Nb7 Rb6 Qc7 d8R Qc4 Ndf3 Qcd3 Be3 Qd1 Nd2 Bfh6 Bf4 Re8 h8Q Bf8 Be3 Nf4+ Kh7 Nd6 Bf2 Bc6 Kg8 Nb7 Qh5 Bd5 Kh8 Bc6 Qh3 Kf6 Qh1 Bd5 Nhf3 Bc6 Bh4 Bd5 Qh7 Bc6 Qc7 Kg6 Qf7+ Kh6 Rb8 Qg6 Rdc8 Be4 Ra8 Bf5 Rab8 Bh3 Ra8 Bge7 Bf6 Qe4 Nh4 Bb4 Bd8 Bbe7 Rab8 Bg5 Bf6 Qd3 Ra8 Qe4 Nc4 Rd8 Rc7 Rc8 Nd2 Bb4+ Qg8 Rd8 Rg7 Bf8 Rc8 Re8 Qf7 Bfc5+ Rg8 Bb4 Rb8 Bf8 Rc8
3q1R2/bR4pb/q1QP2r1/b3ppQ1/b2qN2N/k2NnB2/p1n1K3/1N2R3 b - - 0 1 legal: proof: b4 b5 f4 d5 e4 h5 g4 hxg4 a4 bxa4 b5 a5 f5 c5 Ba3 e6 Bb4 cxb4 Ra3 Ra6 Ra2 e5 Ra1 Re6 fxe6 dxe4 c4 Ke7 d4 Kd6 h4 g3 h5 e3 b6 a3 d5 Kc5 h6 b3 b7 Kb4 c5 g2 c6 b2 c7 a4 e7 a2 e8Q e2 h7 a3 Nf3 g1Q Nc3 b1B Kd2 e1B+ Ke2 Nf6 Qc6 Bd7 c8N Ng4 Qd2 Qd4 Bg2 Na6 b8N Bc5 Nd6 Ne3 Nh4 Ba7 Bf3 Re8 h8R Bh7 Qc1 f5 Nb1 Re6 Rf8 Rg6 Ne4 Kb3 d6 Ba5 Rh3 Nb4 Na6 Nbc2 Nb4 Be8 Qg1 Kb2 Qg5 Kb3 Qc7 Ba4 Qc6 Kb2 Rh1 Kb3 Re1 Kb2 Nbc3 Kb3 Rad1 a1Q Nd3 a2 Rc1 Ka3 Rb1 Q4b6 Rb5 Qa6 Rb7 Qb2 Kf2 Qbb6 Ke2 Qd4 Nb1+
4r1r1/K1R2P1n/1p3pQ1/Qp3N2/N3qrQp/1QrB1bq1/1R1n1k2/N6n b - - 0 1 legal: proof: e4 f5 d4 fxe4 f4 c5 b4 cxd4 f5 a6 b5 axb5 h4 Nh6 g4 Ng8 g5 Na6 f6 Nb8 Bd2 Qc7 f7+ Kd8 Bf4 Qb6 Be5 Qc7 Bf6 gxf6 Nd2 Bh6 g6 Bg5 hxg5 Qa5 Ke2 Kc7 Nb1 Kc6 Kf2 Qb6 Ke1 Qd8 Kd2 Kd5 a4 e5 g7 h5 a5 e3+ Kd3 b6 g6 h4 a6 e4+ Ke2 d3+ Ke1 Kd4 c4 d5 c5 e2 Kd2 e1N a7 Nd7 c6 Nh6 g8Q Qe7 g7 Bb7 c7 Nf8 c8Q Ng4 Ra6 Nf2 Rh2 Nh1 Na3 Nh7 Qcg4 Re8 a8Q Bc6 Ra7 Nf3+ Kc1 Ke3 Kb2 d4 Ne2 d2 Qb3+ d3 Kc3 d1Q Rc7 d2 Qa5 Qe1 Rg2 Qf2 Rh2 Qg2 Nc2+ Kf2 Na1 d1R Qg6 Nd2 Kd4 e3 Nc3 e2 Na4 e1R Bd3 Bf3 Qg4 Re4+ Kd5 Ng5 Kc6 Nh7 Kb7 Rf4+ Ka7 Rc1 Qg6 Rc3 Qg4 Ng5 Qh7 Qb4 g8N Qe4 Ne7 Rhg8 Qg6 Nh7 Nf5 Rh8 Rh3 Rhg8 Rg3 Qh2 Rg1 Qg2 Rb1 Qg3 Rb2
7K/Rp5P/1p1rQp1R/1p2rNQb/QB2q1rn/1q4n1/1r3kR1/2qRN3 b - - 0 1 legal: proof: c4 h5 d4 e5 f4 exf4 g4 hxg4 b4 a6 b5 Rh5 c5 Nh6 b6 cxb6 Bg2 Ng8 Bc6 Rh6 Bb5 axb5 c6 Bc5 dxc5 Rh8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 a4 f3 h4 f6 a5 f2 h5 f1Q c7 g3 c6 g4 h6 g2 a6 g3 a7 Qe7 h7 Na6 Ba3 Nh6 Qa4 Nf5 Nf3 g1Q Bb4 g2 Nbd2 Qc1 Nb3 Re8 Rh6 Qgd1 Ne1 g1R e3 Nh4 Nd4+ Kf7+ Kd5 Rg4 e4 Nc5 e5 Ne4 e6+ Kg7 Rb1 Ng3 Ra1 d6 Rb1 Bd7 c8R Qd3 c7 Qdd1 Rh5 Kg6 Rh6+ Kg5 Rd8 Kf4 c8Q Ke3 Qc5 Kf2 Ra1 Rc8 a8R Qd3 Ra7 Qf7 Qc7 Qe2 Qb8 Rc2 Nf5 Rb2 Qc7 Qee3 Qc5 Re7 Rg8 Be8 Rg5 Qg8 Rg7 Bh5 Rg5 Rf7 e7 Qg6 e8Q Re7 Qg8 Ree4 Qc4 Qb3 Qe6 Qe8 Qe5 Qg6 Ke6 d5 Ke7 d4 Kf8 d3 Qce6 Qe8+ Kg7 d2 Q5d5 Qe7+ Kh8 d1R Rg8 Qe8 Qd2+ Re2 Qg5 Re5 Rb1 Qec6 Rd8 Qe4 Rd2+ Kf1 Rg2 Rd3 Rg1+ Kf2 Ra1 Rd6 Rb1 Qcf4 Rd1 Qc1 Rg2+
B2QQBK1/pRn5/nb4b1/1p1Bp1NP/R7/rp2n1Qb/2q3Qq/2k3n1 b - - 0 1 legal: proof: b4 b5 a4 e5 e4 h5 d4 f6 g4 hxg4 a5 Na6 Nd2 c6 Ndf3 exd4 e5 Rb8 e6 c5 Ne5 Rb6 axb6 cxb4 Bd2 fxe5 Be3 Rh5 Bc1 Rh8 Ke2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 g5 Kg6 d5 Kf7 d3 c4 Kd4 h4 Kc3 f4 d2 f5 d4 b7 d3 b8Q g3 f6 g4 c5 g2 c6 g3 e7 Qc7 Ba3 Bh3 Qe2 Kc2 Nf3 g1N Ng5 g2 Qd8 b3 Qg4 d1N Qg3 d2 Bc4 Ne3 Bd5 d1B h5 Qc8 e8Q Bc5 c7 Bb6 Bf8 Ne7 Ra4 Rh6 Ba8 Qf5 c8B Kc1 Be6 N7d5 Kg8 Qc2 f7 Ndc7 Bed5 Be2 Qc6 Bd3 Qb7 Bg6 Qe8 Bd7 Rhh4 Bh3 Rhc4 Nf3 Rc6 g1Q Rd6 Qgh2 Rd7 Ng1 Qc6 Ne6 Rb7 Nec7 Qd8 Bgf5 Qg6 Bd3 Qe4 Re6 Qeg2 Bg6 Bg7 Rc6 f8Q Rc4 Qfe8 Rg4 Ra5 Ra4 Bf8 Ra3 Ra4
1k1R2q1/2q1P1p1/3b4/p3pK1Q/RN2Nn2/2p1pQ2/q1rQR1n1/3B1bQr b - - 0 1 illegal: No proof kernel
4qrrB/pQ1p1pQ1/N3pP2/1K1k4/5Q1q/2q1Bn2/1p5r/1RnBNQ1b b - - 0 1 legal: proof: b4 c5 a4 b5 h4 bxa4 b5 g5 Ra3 gxh4 Rb3 Nc6 Rb4 Nb8 c4 cxb4 d4 Nf6 c5 Bh6 e4 Qb6 c6 Be3 Ke2 Qa6 Kf3 Ng8 Kg4 Qb6 Kh3 Qc5 Kh2 Qh5 Qd3 Qe2 Qd1 Bf4+ Kh3 Bd6 e5 Qe3+ Kh2 Bc5 e6 Qxe6 dxc5 Qe2 g4 h5 Kg2 a3 c7 b3 g5 a2 b6 a1R g6 b2 c6 e6 b7 Ke7 g7 Ra3 Nc3 Qd2 Kf3 Kd6 Ke4 h3 f4 h2 f5 h4 Na2 h3 Nb4 Rd3 Be2 Qc3 Nf3 Nh6 g8Q Ng4 Ne1 Na6 b8B Bb7 Qg7 Ne5 Be3 Rg8 Bf3 Rd2 c8Q+ Nc7 Rg1 h1Q Na6 h2 Qc1 Rg2 Bd1 Nd3 Qd8 Rf8 Qh4 Rg8 Qa1 Nc1 Rf1 Qg1 Qhg5 h1Q Qf4+ Ke7 Qb1 Nb5 Be5 Qh4 B5d4 Rf2 Ke5 Qgh2 c7 Raf8 c8Q Bh1 Qb7 Q2h3 Rg1 Rh2 Qd3 Qc8 Qdf1 Qe8 Bc3 Bg2 Rh1 Nd4 Rg1 Nf3+ Ke4 Ne2 Kd3 Bh1 Kc4 Nc1 Kb5 Q3g3 Qgh6 Qgh3 Bh8 Q3g3 Qg7 Qgh3 Qfh6 Kd6 f6 Ke5 Rg4 Q3g3 Ra4 Qgh3 Ra1 Kd6 Rb1 Q3g3 Qc7+ Kd5 Qb6 Qc7 Qf4 Qc3 Qb7+
2NN2Q1/2p4Q/QbNR2K1/2Ppp3/np3Nbr/3Rb2k/qpbBn3/q7 b - - 0 1 legal: proof: d4 a5 g4 b5 e4 e5 b4 axb4 f4 h5 g5 f6 f5 Ra7 Be2 exd4 Bg4 hxg4 e5 fxe5 Qf3 Ra6 Qd1 Rf6 gxf6 Bd6 Qd2 Be7 Qd1 Bf8 Kf2 Kf7 Kg3 g5 c4 d5 h4 d3 a4 b3 a5 b2 c5 d2 h5 Ba6 h6 Nc6 h7 Qa8 Nc3 Bh6 Nge2 Bc8 a6 Nge7 a7 Nd4 Qa4 d1B Na2 Bc2 Rh3 Be6 Qa6 Nc8 Bd2 Nb6 Rf1 Na4 Nf4 Bc8 Nb4 Ne2+ Kf2 g3+ Kf3 g2 Kg4 g1Q+ Kh5 g4 Nc6 Be6 Rd3 g3 Rff3 g2 Rf2 Rb8 h8Q Qa1 Rf1 g1B Qh7+ Bg7 Rff3 Rh8 Rg3 Bd4 Rg6 Bc3 Kg5 Ba5 Kh5 Qe8 a8N b4 Nb6 Qa8 Nc8 Bb6 Rh6 Ke8 f7+ Kd7 f6 Bg4+ Kg6 Qa7 Ng2 Ke6 f8Q Qa8 f7 Qa2 Rh1 Bh6 Qfg8 Be3 Rh6 Qa1 Qb7 Qa6 Qa7 Qc4 Qa6 Qca2 Nf4+ Kd7 Kg7 Bh5 Qe4 Bf3 Re6 Rh4 Qeh7 Bh5 Rh6 Bf3 Ng6 Ke6 f8N+ Kf5 Nf4+ Kg4 N8e6 Kg3 Ned8 Bg4 Rd6 Kh2 Kg6 Kg3 Nh5+ Kh3 Nf4+
1QKBbN2/1P1p2R1/2QBpkp1/2B1pp1r/2qQ3n/r2B1r2/1pn2N2/2n5 b - - 0 1 illegal: No proof kernel
2q5/3Q1RK1/2NkN1Q1/Q2p2Np/3Rbbb1/rPp1pp2/1n2b1p1/4rQB1 b - - 0 1 illegal: No proof kernel
1b2bR1n/Q2PBp1p/5RQ1/3bpN1r/1K1ppr2/3NNb1p/3n2N1/1k4R1 b - - 0 1 legal: proof: d4 a5 h4 d5 f4 g5 b4 axb4 e4 gxh4 f5 e5 Bc4 Qd6 Bb3 Qe6 fxe6 dxe4 d5 c6 d6 Ra4 Bc4 Ra8 Bd5 cxd5 Kd2 b5 g4 b3 Kc3 h3 a4 d4+ Kb4 b2 c4 Bb7 e7 Kd7 e8R Kc6 c5 Kd5 c6 Ra6 c7 Ba8 c8N Bc6 a5 Nd7 g5 Nc5 g6 Nb3 g7 Ne7 g8N Ng6 Qh5 Nd2 Na3 b1B Nc4 Bd3 Nh6 Be2 Nf5 Bf3 Nh4 Rg8 Ba3 Nh8 Ne2 Rg5 Qg6 Rh5 Rhf1 Bd7 Rd8 Be8 Ng2 Rc6 a6 Be7 Ka5 b4 a7 b3 a8Q b2 Nc1 b1B Nd3 Ba2 Qa7 Rb6 Bc5 Rb1 Rg1 Rf1 Kb4 Bb3 Ra6 Rf2 Rd7 Bd8 Rb6 Bc7 Rd8 Bb8 Rc6 Bg4 Rb6 Rf4 Ra6 Bf3 Rc6 Bd7 Rf8 Be8 d7 Ba2 Rf6 Bb3 N4d6 Bc4 Nf5 Ba2 Ka4 Kc4 Ncd6+ Kc3 Nc4 Kc2 Kb4 Bb3 Be7 Ba2 Nge1+ Kb1 Nce3 Bd5 N1g2+
1qqbb1Kb/1p6/2B3B1/N1B1rrQ1/1P1Q2n1/1Rnr3R/3Qk2q/4qqnQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 e5 d5 exf4 d6 a4 Nd2 cxd6 Bb2 d5 Bc1 d4 Nb3 axb3 Kf2 Ke7 a4 Kd6 e4 Ke5 h4 f5 c4 g5 h5 d5 a5 g3+ Kf3 g2 c5 d3 h6 Kd4 a6 d2 c6 g4+ Kf2 g3+ Kf3 b2 e5 b1Q e6 Nd7 h7 Bg7 c7 Nh6 a7 Nf6 e7 Rf8 h8Q Bd7 e8B Qb2 c8Q Ne4 Qb3 d1Q+ Be2 Qdc2 Bb5 Ng4 Bh5 Nc3 Nh3 g1B Be8 g2 Bf7 Be8 Qh5 Bh8 Qd7 Qb8 Bc6 Kd3 Bg6 Bb6 Rb1 d4 Qbd5 Bd8 Ng1 Rf6 Ne2 g1N+ Kg2 Rd6 Rh3+ f3+ Kg3 f2 Qg5 f1R Qh1 Rd5+ Qd6 Re5 Kh4+ Rf3 Kh5 Rg3 Bf7 f4 Kg6 f3 Kh7 f2 Be3 f1Q Kg8 Rf3 Qd7 Rff5 Bg6 Qbc1 Rb3 Q1d2 Ng3 Qh2 Ne4 Ke2 Nd6 d3 Nc4 d2 Na5 d1Q Bc5 Qde1 Qd6 Qcd1 Qdf6 Qd7 Qd6 Qdc8 Qdd5 Qd6 Qd4 Rb8 a8Q Qdc7 Qa7 Ra8 Qb6 Q7b8 Qc7 Ra6 Qcd7 Rb6 Be4 Rd6 Bc6 Rdd5 Qdf4 Rd1 Qdd4 Rd3 Qd2+
3rb1Rk/R2rRq2/1b3BQ1/1B1Qp2b/B2n4/4P1K1/2NbbnBn/nrn5 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Nd2 h4 Ne4 fxg6 Ba3 g5 Ng3 hxg3 Bc1 g4 a4 Kf7 h4 b5 c4 e5 f4 d5 h5 g5 c5 Kg7 f5 d3 c6 d4 c7 g2 Kf2 g3+ Kf3 g4+ Ke4 d2 a5 b3 a6 d3 a7 b2 Rb1 b4 Qa4 d1B Qb3 d2 Rh3 Rh7 h6+ Kh8 f6 Bd7 c8B Nc6 f7 Nd4 Qa4 b3 Qb4 Qc7 Qc5 Be8 Qd5 Nf6+ Ke3 Bb4 Qd6 Ne4 Bd7 Rd8 a8B Nf2 Nf3 g1N Ba4 g2 Qg6 g3 Ra1 b1R Ne1 b2 Nc2 Ngf3 Ra2 Rg7 h7 g1N Rh6 Nh2 Bag2 Qc4 f8Q+ Qg8 Qc5 Rgd7 Qd5 Qf7 Rh5 Bc3 Rg5 Ba5 Bh3 g2 Rg3 Nb3 Ra1 Ngf3 Rg4 g1B Bhg2 Nd3+ Ke4 Bgb6 e3 Nde1 Bfb5 Be2 Ra2 d1B Bd2 Nfd4 Bb4 Nd3 Be7 Na1 Bf6+ Qg7 Ra3 Bd2 Ra2 Nc1 Rg3 Ndb3 Kf5 Nd4+ Kg5 Ne6+ Kh4 Nd4 Rg5 Bh5 Kg3 Bde2 Qd3 Bb4 Be7 Bd2 Bb3 Qg6 Rg4 Kg7 Bg5 Qf6 h8R Qe7 Rh6 Qf7 Re6 Kh8 Ra8 Na2 Q3e4 Rc1 B3a4 b1N Ra7 Nbc3 Re7 Rb1 Qf5 Nd1 Bf6+ Qg7 Rg6 Nc1 Qfe4 Nf2 Qf5 Kh7 Qfe4 Qf7 Rg7+ Kh8 Qd3 Nhf3 Qg6 Nh2 Rg8#
4QNn1/n3nKR1/B2R4/r3kRN1/2p3bb/1NPr2n1/Qn1q1r2/2Rr1qr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 Ke2 Kf7 Ke3 Ke6 Kf4 c5 Kg5 b5 Kg6 b3 a4 c4 h4 e3 f4 b4 d4 b2 c3 b3 h5 g2 h6 e2 a5 e1N a6 g3 h7 Nc6 a7 Nd3 Nd2 b1R Ra3 b2 Ne2 g1Q Nf3 g2 Qb3 Rd1 Nc1 b1N Ra1 Na3 Nh2 Nb2 Qa4 Rd3 Qb4 Nb5 f5+ Kd5 f6 e5 f7 e4 Qe7 e3 Ra4 e2 Qe8 e1R Nf3 Red1 Ra5 Be7 f8N Bh4 Kf7 g5 Nb3 g4 Ng5 g3 Be2 Bh3 Bg4 Nce7 Bc8 Bg4 Ba6 Kd6 d5 Ke5 d6 Qf1+ Kg7 g1N d7 Ne2 Rg1 Nf6 Kf7 g2 Rh1 Rg8 h8R g1R Rh7 Ng3 Rg7 Rg2 Rg1 Rf2 Rh1 Qc8 d8R Qd7 Rg1 Qd4 Rh1 Qf4 Rd6 Qd2 Rh7 Rg6 Rg7 Ng8+ Rf6 Rad8 a8Q R8d5 Rg1 Na7 Rb5 Re1 Rb6 Ra5 Rd6 Rea1 Rf3 Qg2 Rc1 Qf1 Qac6 Rb1 Qa4 Ra1 Qa2 Rb1 Rc2 Rd1 Rc1 Nh1 Bb5 Bc8 Nge6 Rg1 Ba6 Ng3 Ng5 Bg4 Rf5+
q2b1BRQ/kn4r1/NrbRprQ1/3N3K/rn6/n3nQR1/4Pr2/Qn2q3 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bd2 h3 Bg2 hxg2 Bg5 fxg6 Bf4 g5 Bc1 g4 f4 g5 Kf2 d5 Kg3 Kd7 a4 Kc7 h4 Kb6 c4 b3 f5 d3 h5 e6 h6 d4 h7 b2 f6 d2 a5+ Ka7 a6 b5 c5 d3 f7 b4 c6 b3 c7 Bb7 c8Q Nc6 Qc7 Nh6 Na3 b1N Qa5 b2 Qb5 Nb4 Qf1 d1Q Nf3 g1R+ Qg2 d2 Qc6 Qe1+ Kh2 d1N Nd4 g3+ Kh3 Nf5 Kg4 Be7 f8Q Nde3+ Kh5 g4 Qg8 Nd6 Qg7 Rf1 Nb3 Rf6 Rh3 Rhf8 Nc2 Na3 h8Q b1N Qcf3 Bc6 Nc5 Nb7 Qh1 g2 Rg3 g1R Qg6 Rf1 Bb2 Qa5 Be5 Rfc8 Bd6 Bd8 Bf8 Rf2 Ra2 Rcb8 Rb2 Nf1 Ne3 Qa4 Nd5 Ne3 Rd2 Qa5 Rh3 g3 Rd4 g2 Rg3 Qd2 Qc1 g1R Qc3 Qe1 Qa1 Nd6 Rd3 Rb6 Rd2 Nb7 Rd4 Rc8 Rd2 Rc7 Rd1 Rg7 Rd4 Ka8 a7 Qa4 Na6 Rgg2 Rh3 Rg4 Rg3 Qb5 Bd6 Nd3 Nb8 Qa4 Nf4 Bc7 Be7 Qa6 Rd6 Qaa5+ Nd5 Ra4 Qhh6 Nb4 Qhh7 Nd8 Qh8 Kb7 a8R Qa7 Nd7 Qa6 Rc8 Qa8 Nc5+ Ka7 Na6 Nb7 Rg8 Bd8 Bf8
3nn1K1/r1Rbk1Br/2rR4/4b3/3R2pB/qQbR2P1/Br2Nb2/1qQ1r1q1 b - - 0 1 legal: proof: e4 c5 b4 f5 d4 cxd4 b5 fxe4 g3 h5 b6 h4 Na3 h3 Nc4 axb6 Ne3 b5 Ng2 hxg2 Be3 b4 Bf4 Ra6 Bc1 Ra8 Kd2 b5 c4 g5 a4 e5 h4 d5 f4 d3 Ke3 g4 h5 d4+ Kf2 b3 h6 b4 f5 d2 h7 b2 c5 b1R c6 b3 c7 d3 Ke3 b2 f6 Qd6 f7+ Ke7 a5 Qa3 a6 Nf6 a7 Bg7 f8R Nc6 Qe1 d1Q Ne2 Bd7 c8R Ne8 Rf6 Nd8 Rc7 g1R Qc3 d2 Qb3 Rc8 Bg2 Re1 Ra2 Ra1 a8Q b1R Qc6 Rb2 Rhf1 Qc2 R1f3 d1Q Bd2 Qcb1 Qc1 Ra8 Bc3 Ra6 Bd4 Rc6 Bb6 Qb4 Ra4 Qc5+ Rd4 Ra7 Ba5 Qa3 Bd2 Rf8 h8B Rf7 Rfd6 Bf6 Rf2 Rh7 Bg7 Qdc2 Rd3 Qcc5+ R6d4 Qb6 Rf5 Qbc5 Kf2 Qb6 Bg5 Qbc5 Bf3 Qb6 Bh4 e3+ Kg2 Qbc5 Bd5 e4 Bc4 Bg5 Rf6 Bf4 Qbc3 Be5 Ba2 Rb8 Qb3 Qb6 Nf4 e2 Kf2 Qbc5 Ke3 Rb4 Qa4 Rb2 Qb5 Rh1 Qa4 e1B Qb3 Bc3 Ne2 Re1 Rd6+ Bf6 Kf4 e3 Ke4 Bg5 Rf6 Bf4 Ng1 Be5 Ne2 Re6 Kf5 Rc6+ Kg6 Qb6 Ng1 e2 Rc4 Rf1 Rd4 e1B Ne2 Bf2 Bh8 Rf7 Bg7 Re1 Kh7 Qbc5 Kg8 Qb6 Bh8 Rh7 Bg7 Qbb4 Rdd6 Qe4 R6d5 Qh1 R5d4 Qg1 Rfd6+
n1r5/N6k/n5nr/QKn3bb/NB1p1bb1/3PN2q/q2Q1nQR/1N3R1q b - - 0 1 legal: proof: g4 c5 f4 a5 b4 e5 g5 exf4 g6 a4 Bh3 cxb4 Bg2 hxg6 Bf3 g5 Bd5 g4 Bb3 axb3 c4 b5 h4 d5 a4 g5 e4 f5 Ke2 Kf7 Kd3 Kg7 c5 f3 h5 f4 h6+ Kh7 a5 d4 e5 b2 a6 g3 e6 g2 c6 f2 a7 f1B+ Ne2 g1N c7 g4 e7 b3 e8Q b4 Kc4 f3 d3 g3 Bg5 g2 Be3 f2 Nbc3 b1Q Rh3 b2 Nd5 b3 Ng3 Qh4 Nh1 Na6 Kb5 Be7 Nc3 Qa2 Na4 b1Q Bg5 b2 Rg3 Nh3 Bc1 g1B Qe1 Bh2 Qa5 Be2 Nc3 f1N Bd2 Nf2 Rh3 Ne3 Ng3 Bh5 Qc6 Bg5 Qg2 Nd5 Nf5 Nb6 Ne3 Bhf4 Rh2 Qh1 Rf1 Ne7 Nb1 Qh3 Bb4 Bcg4 c8N Rb8 a8N Ng6 Na7 Rbc8 Nc7 Na8 Ne6 Rc6 Nc5 Rhc8 Nc3 b1N N5a4 Nd2 Nb1 Kh8 h7 Nde4 Nd5 Kg7 Ne3 Nec5 h8Q+ Kf7 Qe8+ Kg7 Qe6 Kh7 Qe5 Nf8 Qed5 Rh6 Qdf3 Ng6 Qe2 Be7 Qb2 Beg5 Qd2
B4b1n/1p5b/rrQ1rk2/Qrnbb3/1PR1nBq1/2RQ1B2/qN5b/Q2K4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 e5 d5 exf4 d6 a4 Nd2 cxd6 Bb2 d5 Bc1 d4 Nb3 axb3 e4 Ke7 h4 g5 a4 d5 c4 f5 e5 f3 e6 g3 a5 g4 h5 d3 a6 d4 h6 g2 a7 f4 h7 b2 c5 b1B c6 d2+ Kf2 d3 c7 Kf6 e7 Na6 e8Q Nh6 Qee1 Nf7 Qe8 Nc5 Ra2 Be6 c8Q Qd5 Ra5 Qa2 Qb8 Bd5 Qde1 d1Q+ Q1e2 d2 Q8e4 Rg8 Qc7 Rg6 Rb5 Nh8 Rh3 Re8 a8B Re6 Q2e3 Rb6 Ne2 Rh6 Kg1 f2+ Kh2 g1B+ Kg2 g3 Kf3 g2 Qa3 Bh2 Qd3 g1B Bg2 f1R+ Kg4 f3 Nf4 f2+ Bf3 Re1 Rg3 Ra6 Qa5 f1N Qe8 Rb6 Qc6+ Re6 Rh3 Bd4 Rh4 Nb3 Rc5 Be5 Rh3 Ng3 Rc4 Ne4 Rg3 Nf7 Rh3 Qg1+ Rg3 d1R h8Q+ Ke7 Bd2 Nbc5 Be3 Bb8 Qe5 Nh8 Qa1 Be5 Qf1 Ra6 Nd3 Nd2 Bg2 Rc1 Rd4 Na4 Bf4 Rd6 Qcc3 Rdb6 Nb2 Bh7 Qc6 Rc5 Rc4 Rcb5 Rgc3 Ne4 Kf3 Re6 Ke2 Nac5 Bf3 Kf6 Kd1 Qg4 Qd3
4Rn2/3rnbQ1/p4b1q/5n1Q/R2qB1RR/P1brNk2/b1QB4/1r1b1Kn1 b - - 0 1 illegal: No possible last move
2rnQQ2/1n2BN1p/1B1qk3/1qb2qBP/2B4r/2b3N1/n1R2n2/Q2r1bKb b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 e4 dxc4 f4 f5 Ra3 fxe4 f5 g6 Rf3 g5 Rf4 gxf4 Kf2 Kd7 g4 e5 d4 c5 h4 b5 f6 c3 a5 b3 a6 c4 f7 b4 d5 f3 d6 c2 a7 c3 h5 e3+ Ke1 e2 Kf2 e1B+ Ke3 e4 g5 b2 g6 b3 g7 f2 Ba6 f1B Qe2 Bb7 Bc4 Na6 Bb5+ Ke6 d7 Nh6 g8Q Nc5 Nd2 b1Q Bc6 b2 Kf4 e3 Qa6 e2 Kf3 Qc7 d8B Qd6 Be4 Rc8 Qg2 Rg8 a8Q Rg4 Qa1 Rh4 Qg8 Be7 f8B+ Nf7 Bb6 Bc6 Bc7 Nb7 Nh3 Bd5 Qg7 Nfd8 Rh2 Bc6 Ke3 Bd5 Bg6 Bh1 Ne4 Bd2+ Kf2 e1N Kg1 Nd3 Re2 Nf2 Bb6 Be1 Bf4 c1N Bg5 Na2 Ng3+ Qe4 Qa4 b1Q Qe8 Qb5 Rc2 Qf3 Bd3 Qff5 Rb2 c2 Bc4+ Qdd5 Qh8 c1R Rc2 Rd1 Qhg7 Bc3 Qg8+ Ke5 Qgf7 Qde6 Qg8 Bc5 Bfe7 Qd6 Qgf8 Nc1 Be3 Na2 Ng5 Qd5 Nf7+ Ke6 Bd3 Qde5 B3g5 Qd6 Bc4+
r1rrn1b1/2NQB2r/2R2b1p/nQ1N2N1/1Q2q1N1/4r1nb/2B2brP/3K2k1 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 f4 g5 f5 a5 Ra3 axb4 Rf3 Qb6 Rf2 Qd8 Rf4 gxf4 c4 Kf7 g4 Kf6 g5+ Ke5 g6 d5 f6 b5 f7 d3 a5 Kd4 g7 e5 c5 f3 a6 d2+ Kf2 b3 a7 h6 c6 b2 c7 b4 Qe2 d1R Nc3 b1B Na2 e3+ Kg3 b3 Qc2 e4 Qc6 e2 Kf2 e1R Qe6 b2 Bg5 e3+ Kg3 e2 Kf2 Qe8 Bd2 Nc6 Bh3 Rc1 Bf1 Nf6 g8N Bh7 Qd6 b1R Bg2 Bg7 f8N Rb2 Bh3 Qe4 Bf4 Na5 Nc3 Ne8 Bg5 Bf6 Bf5 Rbc2 Bg6 Bh3 c8Q Kd3 Qdd7 d4 Nd5 Ra2 Qb8 Rc8 Ne6 Rd2 Nge7 Bg8 Nec7 Rh7 Ne3 Rb2 Ne7d5 Rc2 Kg3 f2 Ng4 f1N+ Kf2 Ng3 Nf3 Rb2 Bh4 Ra2 Ng5 Kd2 Qbb5 d3 Nf3+ Kd1 Qb4 d2 Qdb5 Ra3 Ng5 Rg1 Bf5 Re3 Bg6 Kc1 Qd7 d1R Qbb5 Kd2 Bf5 Rab8 a8Q Ra1 Qac6 Rd8 Qb3 Rbc8 Qb4+ Kd3 Qcc5 Ra3 Qcc6 Rg2+ Ke1 Ra2 Qcb7 Ra3 Q4b5+ Kd4 Kd2 e1B+ Kd1 Bf2 Re1 Ra2 Re2 Ra4 Rc2 Raa3 Qb4+ Kd3 Rc6 Ra4 Kc1 Ke2 Q7b6 Kf1 Q6b5+ Kg1 Kd1 Nb3 Bg6 Raa8 Bf5 Na5 Bg6 Qf4 Bc2 Qe4 Nf7 Bc3 Be7 Bf6 Ng5
n1Nr1q1Q/NQr3nK/R2q4/Rp3BQR/1P2Q2q/1r1r1b2/5b2/2bq1b1k b - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 f5 cxd4 b3 a5 f6 a4 Nh3 a3 Bb2 axb2 Ng1 exf6 Nc3 f5 Nb1 f4 Kf2 Ke7 h4 Kd6 e4 Ke5 c4 g5 a4 f5 c5 b5 b4 d5 c6 g3+ Kf3 g2 h5 g4+ Kf2 d3 c7 f3 Kg3 f2 a5 d2 a6 f4+ Kh2 f3 Kg3 d4 h6 d3 h7 Ne7 Kh4 Kf4 Kh5 Kg3 a7 Qd6 e5 Nf5 e6 Nd7 Kg6 Ng7 Kh6 Bb7 c8R Nb6 Qe1 d1Q Rd8 d2 Qe4 Rc8 a8Q Rc7 Be2 f1B Ra2 f2 Nc3 b1R Na4 Rb3 Nf3 g1B Bd3 Kg2 Rh5 g3 Qg4 Rg8 Ne5 Bf3 Qb7 Na8 h8Q Qe1 Rc8 d1R Bf5 Rdd3 Nb6 Qe4 Qg6 Qh4 e7 Kh1 e8Q g2 Nc6 Be7 Ra1 Bg5+ Kh7 Bc1 Qe4 Rd8 Qf6 Bh2 Ra2 g1Q Ra6 Bhf4 Ra5 Bfe3 Qg5 Qg4 Na7 Qgf4 Bg4 Qff8 Bf5 Rc4 Nd7 B1g2 Qg8 f1Q Nb6 Bf2 Rc6 Qd1 Nbc8 Bf1 Rca6 Rc7 Qh8
4k1rb/2Q1n2N/n1qb1Q2/5pbq/NNbq4/K1nR3n/1N1RRP1q/3B2r1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Be3 d3 Bd4 exd4 Bh3 hxg6 Kf1 g5 Kg2 g4 Kg3 d2 Bf1 Qf6 Kg2 Qd8 h4 b5 e4 d5 a4 f5 c4 g5 c5 g3 Kf3 d3 Ke3 b3 Kd4 b4 e5 g2 h5 b2 a5 b3 Kc3 g4 Kb4 d4 e6 g3 a6 Qd5 a7 Be7 h6 Ba6 h7 Bg5 e7 Bc4 c6 Na6+ Ka3 Qd7 c7 Qc6 Qf3 d1Q c8N d2 Nh3 g1B Qg2 d3 Ra2 Bh2 Qe4 g2 Qe1 g1B Qe2 Be5 Nf4 Bh2 Nc3 b1Q Ncd5 b2 Nb4 Bc3 Qe3 Qh5 Be2 d1N Nb6 d2 Qe5 Ne3 Re1 d1Q Nfd3 Nd5 Na4 Nf4 Qc7 Nh3 Bf3 Rc8 a8R Bd6 Re2 Qbc1 Ra7 Qf4 Rd2 Qh1 Bd1 Qhh2 Rb7 Qe3 Rb5 Qd4 Rd5 Kf7 e8N+ Ne7 Re2 Rg8 h8Q Rg6 Nf6 Rcg8 Nh7 Ke8 Qf6 R6g7 Ra1 Rg6 Rc1 R6g7 Rcc2 Rg6 Rcd2 R6g7 Bb3 b1N+ Ka2 Ba1 Ndb2 Nc3+ Ka3 Bgf4 Rc5 Rg1 Rd5 Bg5 Bd1 Qe3 Qh8 Ne4+ Nd3 Baf6 Rd4 Nc3 Ndb2 Qef4 R4d3 Qd4 Qg7 Bfe5 Qh6 Bh8 Qf6
2qnR1rn/8/6qp/1NQBrb1P/4n3/Q2kn1B1/B2pNb2/NrNb2nK b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 f4 exf4 d5 g5 d6 g4 Ra2 cxd6 Ra3 d5 Rg3 d4 Rf3 gxf3 Kf2 Ke7 h4 Kf6 g4 Ke5 e4 b5 c4 d5 g5 f5 c5 b3 g6 b2 h5 h6 c6 b4 a5 d3 a6 Kd4 g7 b3 a7 d2 e5 Ne7 g8B Ng6 e6 Bc5 c7 Nc6 Qe1 d1B Bf7 Rg8 e7 Nh8 Bh3 Kd3+ Kf1 d4 e8N f2 Na3 b1R Qb4 b2 Bd2 Bd7 Be1 Qc8 Bg6 Nd8 Kg2 f1N Nf6 Nh2 Bg3 Nf3 Ne2 Ng1 Nc2 f3+ Kh2 f2 Bg2 f1Q Bf7 f4 Ba2 f3 Na1 f2 Bgd5 Bf5 Nd7 Rb8 a8N Rb5 Qa5 Qe1 Kg2 f1N Qa3+ Qc3 Rh4 Ne3+ Kh1 Qa6 c8Q Qg6 Nc7 Bb6 Bdb3 Re5 Nb5 Qc2 Qc7 Qc5 Qd6 Qc8 Nc5+ Kd2 Na4 d3 Qb8 Ng2 Nc2 Re7 Bd5 Bf2 Qa7 Ra1 Nc7 b1N Nc5 Ne3 Re4 Nc3 Nb5 Rb1 Na1 Re6 Re5 Ne4 Qc7 Rd6 Re8 Re6 Qca7 Re5 Ncb3+ Ke1 Q7c5 d2 Ned4 Kf1 Ndc2 Ke2 Ncd4+ Kd3 Ne2 Qd7 Nd6 Qc6 Nb5 Qc8 Nbc1#
2N3B1/Q3b2R/n1R2nb1/b3nRNp/kq2b2P/1pQ3r1/RKbqr3/4q2Q b - - 0 1 illegal: No possible last move
bnq2QN1/pr1BpK2/6r1/2kQRnQq/RN3b2/3Q2b1/Pb2q3/3N2bn b - - 0 1 illegal: No possible last move
1K1bqnbr/1Q1b4/5r1b/rB1pk1bR/4p3/1Q1b2bN/n2QPR2/NN1Q4 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 Kd2 Kf7 Kd3 Ke6 Ke4 d5+ Kf4 b5 a4 b3 h4 b2 c4 b4 a5 d3 a6 g5+ Ke3 g2 Kd4 b3 Kc5 g3 f4 d2 a7 g4 f5+ Ke5 f6 Bd7 h5 Qe8 Kb6 Na6 Kb7 Nb4 f7 Bh6 f8N Nf6 c5 Nh7 c6 Na2 Nc3 b1B c7 b2 c8Q Bd3 Rh2 b1B Ne6 Nf8 Nh3 g1B Nd4 g2 Qc4 g3 Qcb3 Bf2 Nc2 g1B Bg2 e6 Be4 g2 Kc7 Bg5 h6 Bg3 h7 B1e3 Kb7 g1B Rf2 Bh6 Bf5 Beg5 Bg4 Rc8 a8Q Rc6 Qc8 Rc5 Kb8 Ra5 Bh5 Bd8 Qcb7 B1h2 Bg4 Bgh4 Bh5 B4g5 Bf7 Bg3 Bg6 Nb4 Ra3 Na2 Na1 Bbc2 Ra4 Bb1 Rh4 Bbc2 Rh5 Bb1 Qe1 d1R Qd2 Bbc2 Nb1 Rf1 Rh2 Rf6 Rf2 Be4 Bf5 Bcd3 Bg4 Bg6 Bf5 Bf7 Be4 Bc2 Bd3 Bg8 Ba6 Bd3 Bb5 Kd6 Qbd1 e5 Qb3 e4 Qbd1 Ke5 Qb3 Bge6 Qbd1 Rg8 h8Q Bf7 Qh7 Rh8 Qb6 Bg8 Qbe3 Bc2 Qb3 Bd3 Qf7 Bf5 Qa7 Bd7 Qb7
n3Qr1n/b4Bb1/3q3R/K1p1B2n/prN1bQ2/P4kqQ/rr4q1/Q2RB3 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 f5 Nc3 f4 Nce2 hxg6 Nf3 g5 Ng3 fxg3 Ng1 g4 h4 Kd7 f4 Kd6 b4 Kd5 d4 g5 Kd2 a5 Kc3 e5 f5 g2 b5 g3 b6 g4 b7 e3 h5 Ke4 f6 e2 h6 e1R f7 Na6 b8Q Nf6 h7 Bf5 d5 Re2 d6 Bg7 f8B Rb2 Ne2 g1B d7 g2 Qc2+ Kf3 Bg5 g3 Bh6 e4 Bb4 Rf8 Kd2 c3+ Ke1 c6 Rd1 Nc7 Qd2 c2 Qa7 e3 Nf4 e2 h8Q Be4 Qd5 Bf2+ Kd2 g1N Kc3 e1Q+ Qd2 g2 Bg5 Nh3 Nd5 g1Q Bc4 Nf4 Nb6 Qg2 Bf7 Ng6 Bf4 Be3 Rh3+ Qeg3 Be5 Bf2 Qhh6 Nh8 Qh4 Qe7 d8Q Qd6 Qe8 Be3 Qa6 Ra7 Qc1 Na8 Qac8 Bc5 Qa1 Be3 Qg5 Bg1 Rh7 Nh5 Rh6 Ra6 Qh3 Be3 Nc4 Ba7 Nb6 c5 Kc4 c1R+ Kb5 Rc3 Nc4 Ra3 Qd2 a4 Qg5 Rc6 Ka5 Rb6 Be1 R6b4 Qgh4 Re2 Qg5 Rab3 a3 Ra2 Qgh4 Rbb2 Qf4+
n7/3NNQ1Q/b1b4r/QpK5/krnrQ3/b2b2pq/3NBRPR/bn5b b - - 0 1 illegal: No proof kernel
1b6/3Qp1N1/4qb1b/1b1rRB1R/1kQ1PB1b/Rq3bp1/4nB1n/K1R3rb b - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Nc3 h4 Ne4 dxc6 Ba3 c5 Bc1 c4 Ng3 hxg3 h4 Kd7 a4 Kc6 f4 Kc5 h5 g5 e3 b5 d3 b3 Kd2 g2 Kc3 b2 h6 b1B Kb2 c3+ Ka3 g3 a5 c2 Kb2 g4 h7 b4 f5 b3 a6 Bh6 d4+ Kb4 f6 c5 d5 c4 a7 Qb6 d6 Bd7 f7 Bb5 f8B Nc6 d7 Nf6 d8R Nd4 Be2 Rg8 h8R Qe6 Nf3 g1Q Ra6 g2 Rc8 c3+ Ka1 g3 Rd6 Ng4 Bg7 Nh2 Rdc6 Rd8 Re8 Rd5 Bd2 c1B Qf1 Be4 Bd1 Ne2 Nh4 Bf3 Bd4 Bf4 Bb6 Bb8 Nf5 Qf2 Bd4 g1B Ng7 Qe1 Bc2 Qd1 Rc5 b2+ Kb1 Bf2 Bf5 Bg1 Ka2 b1B+ Ka1 Bbe4 Rh8 Bf2 Rh5 Qb3 R8c6 Bg1 Ra6 Bf2 Rg1 Bh1 Qd1 Bef3 e4 Be3 Ra5 Bh6 Bf4 c2 Ra3 Bd2 Bde3 c1B Bf2 Be3 Qd3 Bcd2 Rgc1 Bd4+ R1c3 Bf6 Qc2 Rd3 Re5 Rd5 Qd1 Bhg5 Rc1 Bh4 Qc2 Bd6 Qd3 Rf8 a8Q Bb8 Qa7 Rc8 Rb1 Rc1 Qd7 Rg1 Rc1 Rf1 B4e3 Re1 Bb6 Bh6 Bbe3 Rd1 Bf4 Rg1 Qc4+
2Q1r1Rq/1bb1pb2/N2rN1p1/bn2kN2/1Qn2b2/qb2P2B/1NBB1K2/7b b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 h5 d6 h4 Ra2 cxd6 Ra3 d5 Rd3 d4 Rg3 hxg3 h4 Kf7 c4 Kf6 f4 d5 h5 b5 a5 b3 h6 b2 a6 g2 a7 g6 f5 b4 c5 b3 c6 d3 c7 d2+ Kf2 g3+ Kf3 d4 h7 d3 Rh3 Na6 Qc2 d1B Bf4 d2 Be3 Nh6 Rh5 Ke5 f6+ Nf5 f7 Bb7+ Qc6 Bh6 c8N Nc7 f8N Bf4 Nd6 Nb5 Nc3 b1B Nd5 b2 Nc7 Bb3 Na6 d1B Bc5 B1a2 Ne6 b1Q Nh3 g1B Bb4 g2 Nf2 Qb2 Bd2 Re8 Rh3 Rc8 a8B Ne3 Nf5 Nc4 Rh6 Bdc2 Nd1 Bgh2 Kf2 Be4 Qb6 Qa3 Nb2 Rc6 e3 Rd6 Qa5 Bec6 Qb4 g1B+ Ke1 Qc8 Bh3 Bh1 Ke2 Bf2 h8Q+ Ke4 Rh7 Be1 Rg7 Ke5 Qf8 Bhg3 Rg8 Qd8 Bc1 Bc3 Bd2 Bh2 Kf2 Qb8 Qa4 Ba5 Qb4 Rc8 Qf7 Rd5 Kf1 Bg5 Ned4 Nb6 Be1 Bc6 Qd2 Bd1 Ne2 Ke4 Qe8 Bc7 Rf8 Ke5 Qb4 Bf4 Kf2 Rd6 Bd2 Bf7 Ned4 Nc4 Ne6 Bb3 Qd8 Bcf3 Be4 Bfg2 Bb1 Bb7 Rh8 Qa8 Qd7 Rg8 Bc2 Qf8 Qe8 Qg7 Qd7 Re8 Rg8 Qh8 Qc8
b7/B3n2B/1bbb3Q/R1Qq1p1R/Bp2r1R1/1P3qb1/K2n3b/2krqRN1 b - - 0 1 legal: proof: g4 d5 f4 a5 c4 dxc4 g5 e5 g6 exf4 b3 a4 Nc3 a3 Na4 hxg6 Kf2 g5 Nb2 axb2 Ke1 g4 d4 Kd7 Kd2 Kc6 Kc3 Kb5 h4 b1B Kb2 Kb4 a4 f5 e4 c5 a5 b5 e5 g5 d5 f3 h5 g3 e6 f2 e7 g2 e8R g4 a6 g3 h6 Ne7 d6 Bd7 a7 Bc6 h7 Nd7 Qd5 Nf6 d7 Be4 Rb1 c3+ Ka2 c2 Rh6 Kc3 Bg5 c1Q Bd2+ Kc2 Qg8 c4 Ne2 g1B Qe6 c3 Rg6 g2 Qd5 b4 Qc5 Qe1 Qc4 Bh2 Rg4 g1B Qc5 Rg8 Bg2 f1Q h8R Qf3 Rh5 Bf2 Bf1 Bfg3 Be3 Bed5 Ng1 Ne4 Bb5 Nd2 Rd1 Rg6 Ba4 Re6 Ra1 Re4 Rb1 Rb8 a8B Qa5 Bb7 Rd8 Ba6 Ba8 Bc4 Bdc6 Bg8 Qb5 Bh7 Qd3 Rb2+ Kc1 Bd4 c2 Be3 Rb8 d8Q Qd5 Qdd6 Rd8 Qf6 Kd1 Qg6 c1B Qh6 Rd7 Rc2 Bb2 Rb8 Bd4 Rb5 Rd6 Ra5 Rd8 Qb5 Bb6 Rb2 Kc1 Bf2 Bbc7 Ba7 Bb6 Qc5+ Kd1 Qce3 Bg7 Nh3 Qd6 Bb8 Nb1 Rg2 B7e5 Ba7 Bef4 Qd4+ Kc1 Re2 Qe6 Qe5 Rd1 Ng1 Nd2 Rf2 Qf7 Qd4 Qd5 Rf1 Bd6 Qc5+
2qbn1K1/Qrn5/4r1b1/2pNB1NB/1pN4n/r1P3b1/n1Nn2R1/1rQ1Bk2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 a4 hxg4 e5 f5 e6 f4 Ra3 dxe6 Be2 e5 Bf1 e4 Rg3 fxg3 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 b5 h4 g5 f4 g2 d3 g3 a5 b3 h5 g4 a6 b4 h6 b2 h7 e3 c3 e2 f5 e1R+ Ne2 g1N a7 g2 f6 g3 f7 Na6 d4+ Kc4 d5 c5 d6 Nf3+ Ke4 g1R d7 e5 Kf5 g2 Ke6 e4 Bd2 Kd3 Qc1 e3 Nd4+ e2 Rh2 Be7 f8N Nc7+ Kf7 Nf6 Rh6 Nfe8 Rh5 Nh4 Na3 b1N Rd5 Ba6 Nfe6 Qc8 Rf5 Bd8 Ng5 Rg8 h8B Rg7+ Kf8 Bb7 Rf2 Be4 Nc4 Bg6 Nc2 Rh1 N2e3 g1N Rg2 Re7 Nd5 Rh7 Bf4 Nd2 Bg3 Re7 Kg8 Re6 Qa1 Rb1 Be1 Rb8 a8Q Rb7 Q8a7 Rb3 Bg7 Ra3 Na5 Nb3 Bd4 Nc1 Be5 Na2 Nc4 Ngf3 Qd1+ Nd2 Qc1 Be7 d8N Bf6 Nc6 Bd8 Rh2 Rg1 Bh3 Rh1 Rg2 Rg1 Bf2 e1B Nd4 Rf1 Nc2 Ke2 Bfg3+ Bf2 Bf5 Re1 Bg4+ Kf1 Bh5 Rd1 Bgf4 Bg3 Be3 Re1 Bf2 Rd1 Qb1 Rc1 Be1 Rd1 Qb2 Rb1 Qc1
2N1N3/3Rqb1k/4nr2/1nb4p/nR1r1Q2/3n2r1/R1NKQnpP/2rB2Nb b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Bd2 e4 Bh3 e3 Kf1 exd2 Kg2 fxg6 Kg3 g5 Bf1 g4 Kg2 Ra6 Kg3 Ra7 Kg2 Ra8 c4 Kf7 f4 Kg6 Kf2 b5 a4 d5 e4 h5 Ke2 b3 f5+ Kh7 e5 g5 f6 d3+ Ke3 b2 c5 b4 e6 g3 a5 g4 a6 b3 e7 g2 e8Q g3 a7 d4+ Ke4 Na6 c6 Nc5+ Kf4 Be6 c7 Nh6 c8R Ng4 f7 Rg8 Nh3 g1R Rb8 Qe7 Rc8 Ne5 Qf3 d1R Qd8 d2 Rc7 d3 Nc3 b1N Ke3 b2 Qd7 Na3 Nb1 Nb5 Na3 b1N Qd6 N1c3 Nc2 N3a4 Qe2 Bb3 Rb1 Ne6 Rd7 Rc8 a8N Rg6 Qc7 Rf6 Nb6 Rc1 Qb8 d1B Kd2 Rc4 Nc8 Rd4 Ra1 Rg2 Ng1 Bd5 Ra2 Bc6 Ke3 d2 Qd6 Nd3 Qf4 Rf2 Bh3 Rg2 Bg4 Bd5 Na1 B1b3 Nc2 d1N+ Kd2 N1f2 Bf3 Qe8 Bg4 Bc5 f8N+ Kh8 Nh7 Qe7 Qee3 Be4 Bd1 Bbd5 Qe1 Bg6 Qe2 Bf7 Ng5 Bf3 Ne4 Kh7 Ned6 Bd5 Nh3 Ba8 Rf1 Rg1 Ne8 Bh1 Re1 Rf1 Ng1 g2 Qeg4 Rg6 Re4 Rf6 Qgf3 Re1 Q3g4 Re3 Qe2 Rg3 Qd6 Rd5 Rb4 Rd4 Qf4
2nR4/nn1QpRqp/b2R3n/1q1N1qkR/3n2B1/2bQP1N1/K1Nn2r1/6r1 b - - 0 1 legal: proof: g4 a5 h4 g5 b4 gxh4 d4 axb4 g5 c5 g6 cxd4 Be3 f6 Bg5 fxg5 Kd2 d5 Kc1 b5 Kb2 g4 a4 g3 f4 g2 c4 d3 g7 Kf7 a5 Kf6 c5 h3 f5 d4 a6 h2 e3 d2 a7 b3 c6 b4 c7 d3 Qe1 d1Q Ra3 d2 Qg3 Qd4+ Nc3 Qe2 Ra6+ Nc6 Ra4 d1N+ Kb1 b2 Ra3 Ba6 c8Q Na5 Ra4 Nb7 Nb5 Nh6 g8R Bg7 Rd8 Rg8 Qgc7 Kg5 Nd6 Qb5 f6 Nc3+ Kc2 b1N Kb2 b3 f7 Nd2 Ne2 g1N f8R Ngf3 Bh3 Nd5+ Qc3 Nb6 Qe6 Nc8 Ng3 Qg4 Nc4 Qgf5 Bg4 Nd4 Rd1 h1Q Ra5 Qg1 Qd7 Bf6 Ka1 b2+ Ka2 b1N Qd3 Na3 Rf7 Rb8 a8N Bh8 Nh5 Qg3 Nab6 Qge5 Ra1 Qg7 Nd5 Qb6 Ra4 Nc6 Rff8 Qc3 Qe2 Ne4 Ndf6 Kh4 Rf7 Nba5 Ne8 Nc2 Nc7 N6a7 Bf3 Rg2 Bg4 Kg5 Ng3 Nd2 Na3 Qbc6 Re4 Rb1 Rd4 Nb7 Qd3 Qcb5 Rd6 Qcf6 Nd5 Q6g6 Nf4 Bc3 Nd5 Nd4 Nc2 Re1 Rb1 Qg7 Rd1 Ree2 Rh1 Re1 Rh2 Reg1 Rh5+
3b1q1r/b1Bb3n/Qr1r1Q2/1r3p2/bR1QBbNk/N3qP2/2pQ1N1n/7K b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 d4 dxc4 g4 h5 d5 hxg4 Ra3 e6 Rd3 e5 Rd4 exd4 h4 Ke7 e4 Kf6 d6 g5 h5 b5 h6 c5 a5 g3 f3 d3 h7 d2+ Ke2 b3 d7 b4 a6 b2 a7 g2 Kf2 c3 Bb5 g4 e5+ Kg5 e6 f5 e7 g3+ Ke3 c4 e8N c2 Qe2 d1B Qd2 b3 Ba4 c3 Qd4 Nf6 Qd3 Be7 Qa6 Nc6 Qe2 Ne5 Nh3+ Kh4 Qc4+ Neg4+ Kf4 g1B Na3 b1R Qc5 g2 Bc6 b2 Nf2+ Nh2 Qd4 Rb8 a8Q Rb5 Bd2 c1B Qa6 Ba4 Be4 c2 Be3 Rd5 Qd2 Rd6 Bb6 Ra1 Bc7 b1R Ke3 Rb5 Ke2 Rab1 Qd4 Ng4 Nf6 Qf8 d8Q Bf4 Qd7 Bd8 Qd2 Nh6 N6g4 Ng8 Qf7 Bd7 Qf6+ Kg3 Qfd4 R1b2 Ke1 Nf6 Ke2 Kh4 Ke1 Rg8 h8Q+ Nh7 Qhe5 Rh8 Qf6+ Kg3 Nd1 Bge3 Ndf2 R2b3 Rf1 g1Q Ke2 Rbb6 Rb1 R3b5 Rb4 Qc1 Qg6 Kh4 Qgf6+ Bg5 Nh3 Bf4 Kf2 Qe1+ Kg2 Qe3 Qf7 Bgf6 Nhf2 Bfe7 Kh1 Bf6 Qdc4 Bd4 Qg6 Rbc6 Qge6 Ba7 Qcd4 Rcb6 Qef6+
B4rnq/p1nB4/RQ1b1Qq1/Pk2q1NB/1p4nK/1q3q1b/5n2/B4rRQ b - - 0 1 illegal: No possible last move
2R2rN1/6k1/Rn1p3Q/Nr3pqn/qn6/1b1nRQQB/rn1R1P2/1r2b1K1 b - - 0 1 legal: proof: d4 a5 Kd2 c5 h4 cxd4 b4 axb4 h5 e5 h6 e4 Na3 e3+ Kd3 gxh6 Nb1 h5 Bd2 exd2 Rh3 h4 Rh2 Nc6 Rh1 Nb8 e4 b5 Ke2 f5 g4 Kf7 c4 h5 a4 b3 a5 b4 g5 d3+ Ke3 h3 e5 h2 g6+ Kg7 a6 h4 c5 b2 e6 h3 c6 b3 a7 Qg5+ Kf3 Bb4 c7 d6 e7 Na6 e8R Be6 c8Q Ne7 Qc5 Nc8 Nc3 b1R Nd5 b2 Qc4 Nb6 Ne7 Rf8 Ne2 Bc3 Qg4 Bb3 Nc1 Nb4 Qe2 d1Q Ng8 Be1 Re3 d2 Qg3 Nd3 Rg1 h1R Ra6 h2 Kg2 Qc2 Qeg4 d1N Q4f3 Rab8 a8Q Qc4 Qfd5 Qa4 Qe6 Ra1 Qf3 b1N Qc4 Nbc3 Qe6 Bc4 Nb3 N1b2 Na5 Na2 Qh5 Nab4 Qf3 Kh8 g7+ Kh7 Nh6 Ra2 g8R Bb3 Rh8+ Kg7 Ng8 Qa3 Rh4 Qa4 Rd4 N6d5 Rc4 Rb5 Rc8 Nb6 Be2 Bc3 Rd1 Be1 Rd2 Rf1 Bd1 h1N Be2 Rg1+ Kh2 Bd1 Bf1 Bb3 Bh3 Rf1 Qg1 Ng3 Qgg2 Nh5 Qgg3 Rg1 Qgf4 Rg4 Q4g3 Rc4 Kg2 Rc1 Kg1 Rb1 Qh6+
b3n1Q1/1p1N1Rbr/rqNB4/n1nN2Kp/1nR5/1Pqk4/3n4/1QQ1r1Qr b - - 0 1 illegal: Other
1rr1n1B1/Kpn5/1N1B1Rb1/n2N1pQQ/3r1P2/q1b1N3/1N2r1nq/Bb3k2 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 g5 c5 g6 c4 Ra3 hxg6 Kd2 g5 Ke1 g4 Rd3 cxd3 Kd2 Ke7 f4 Ke6 e4 g5 h4 d5 c4 b3 a5 b2 a6 g3 h5 g2 e5 Kf5 e6 Ke4 e7 g4 e8N g3 h6 Qe7 c5 Bf5 c6 Nf6 c7 Bg7 c8N Nc6 h7 Na5 a7 Rb8 Nh3 g1R Qb3 Kf3 Qb6 g2 Nc3 b1B Bb2 Qa3 Nf2 Rf8 Rh5 Bg6 h8B Rg8 Kd1 d2 Nd3 Kg3 Ke2 d1N Re5 Ne3 Ned6 Rd8 Nc4 Ne8 Qa6 f5 Ba1 Kh3 Ndb2 d3+ Kd2 d4 Qf6 Nd5 Qg5 Ndc7 Re6 Bf6 Be2 Re1 Bf3 g1Q Bd5 Re5 Rb6 Qg3 Bg8 Kg2 Nd5 Bg7 Qh5 Qh2 Re6 Bf6 Bg7 Kf2 Bf8 Bg7 Bd6 Re2+ Kc1 Be5 Rf6 d2+ Kd1 Ba2 Kc2 Kf1 Nc3 d1N+ Kd3 Qc5 Nd5 Ne3 Na3 Bb1+ Nc2 Qb4 a8Q Ng2 Qa7 Ne3 Qc5 Qa3+ Qc3 Ng2 Qb3 Nc6 Kc4 d3 Qc3 d2 Qg3 d1R Qgg5 Bc3 Nce3+ Kg1 Nb4 Kf2 Kc5 Na5 Kb6 Rd4 Ka7 Ke1 Nb6 Rdc8 N4d5 Kf2 Ng4+ Kf1 Nge3+
8/2bnNBK1/2r2Q2/Nbrnb1Q1/1k1NQp1r/2n2P2/1q1np1b1/2QR1qR1 b - - 0 1 legal: proof: h4 c5 e4 a5 b4 d5 h5 dxe4 h6 a4 Be2 cxb4 Rh5 a3 Bb2 axb2 Bf1 gxh6 Rh2 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Ke5 b5 g4 f5 c4 h5 a4 b3 d4+ Kb4 c5 f4 g5 e3 g6 h3 f3 h4 c6 e2 c7 e1B a5 h2 d5 h3 g7 Rh6 a6 Nd7+ Kf5 e5 d6 e4 a7 e3 Bg2 Ngf6 g8N Nd5 Ne7 Bc3 Qd3 Be5 Ra2 Ba6 c8Q Qb6 Na3 b1Q Qc6 b2 Ng8 Qf1 Qd1 b1N Ne7 Nd2 Ra1 Rc8 a8Q Qd4 Ne2 Qb2 Qcc1 Rc5 Nd4 e2 Rg1 h1B Nc4 h2 Bh3 Bg2 Na5 h1R Qb7 Rh4 Kg6 Rh6+ Kf7 Rh2 Be6 R2h4 Qdc2 Bfg7 Qg6 Bgf6 Nc8 Bd8 Ne7 Bc7 Qg5 Qc3 Qg3 N7b6 d7 Nf6 d8Q Nfd7 Qe4 Nd5 Nab3 Kc4 Qce1 b4 Nec6 Bb5 Qgg5 Qc1 Qh8 Kc3 Nba5 b3 Qd1 b2 Ne7 b1N Qf8 Rf6+ Kg7 Qb2 Bg8 Rfc6+ Qff6 Kb4 Bf7 Nbc3 Qdc2 N5b6 Rd1 Nbd5 Qc1
rNQ1N2Q/nn1Bq1r1/1K4n1/2n1qpkQ/4pR2/3BPbB1/3r4/bQ2rq2 b - - 0 1 legal: proof: b4 c5 a4 g5 f4 gxf4 g4 a5 d4 cxd4 g5 axb4 Ra3 h6 Rg3 h5 Rg4 hxg4 Kf2 f5 h4 Kf7 c4 Kg6 a5 b5 e3 d5 a6 e5 c5 d3 c6 g3+ Kf3 g2 a7 b3 c7 b2 Qa4 d4 Kf2 b4 Qa2 f3 Qc4 d2 Qc5 d1R Qc4 d3 Nd2 b1N Ne4 b3 Qc2 d2 Bd3 b2 Ne2 g1R Nd6 Nc3 Nd4 b1N Ne8 Nd7 Nc6 Nb5 Ba3 Nd6 Nb8 Rge1 Rf1 Bb7 c8B Nc3 Qb1 Nc5 Bd7 Rh7 Bb4 Kh5 g6 Ncb5 g7 Ne7 g8Q Ng6 Qh8 Qe7 Ba3 Kh6 h5 Kg5 h6 Rg7 h7 Bc6 Kg3 f2 Bb4 Ndb7 Ba5 Rc1 Bc7 d1Q Bd6 Qa4 Bc7 Qa5 Bd6 Ne4+ Kf3 Red1 Ke2 Nec5 Bc7 Qa1 Bd6 Re1+ Kd2 Bf3 Bc7 e4 Bg3 Rcd1+ Kc2 Na4 Kb3 Qaf6 Kc4 Nac5 Kd5 Qd4+ Kc6 Qde5 Kb6 Rd2 Nc6 Rd8 a8Q Na7 Nb8 Rc8 Rh1 f1Q Rh4 Nd8 Qc6 Ndb7 Rf4 Rd8 Na6 Ra8 Nb8 Rf7 Qc8 Bg7 Qg8 Bf6 h8Q Rg7 Qh3 Qd5 Qh2 Ba1 Qgh8 Qde5 Q2h5+
K2R2r1/1B1q4/pp1r1Q1B/1P1B1Qqq/3qN3/1b1r1nkB/N1nQ4/b4nn1 b - - 0 1 illegal: No proof kernel
B1b1nr2/3r1Qq1/1k1bB2N/1q2b1rb/p3p2Q/PR1nq3/q4N1N/2N1BK2 b - - 0 1 legal: proof: c4 d5 f4 b5 e4 bxc4 g4 dxe4 b4 g5 Na3 gxf4 g5 h5 Rb1 Bh3 Rb3 Bg4 Rg3 Bc8 Rg4 hxg4 d4 Kd7 h4 Kc6 h5 a5 g6 e5 h6 f5 b5+ Kb6 g7 c5 d5 g3 h7 c3 d6 c4 d7 f3 Bf4 f2+ Ke2 c2 Bg5 c1Q Nh3 f4 Be7 e3 Bg2 f1B+ Ke1 c3 Bb4 f3 Ng1 e4 Rh3 c2 Nb1 a4 a3 e2 Nc3 Ra7 Na2 Qf6 d8N Qb1 Nc1 Qa2 Qd5 Na6 Nf7 Rd7 Nh6 Bd6 Qf7 Nc5 Ng4 Qg5 Nh2 Nf6 g8B Qg7 Bc3 Ne8 Ba5+ Kb7 b6 Kc6 b7 f2+ Kd2 e1R b8Q Be2 Bf1 g2 Rb3 Bf3 Ba6 f1Q Nh3 g1Q Nf2 Nd3 Bb7+ Kc5 Bd5 Bh5 Ba8 Re3 Qb7 Rg3 Qe7 Rg6 Be6 Rf8 Qh4 Rg5 h8N Qg3 Nf7 Qgh3 Ne2 Qfb1 Nh6 c1B+ Kd1 Bb2+ Kd2 Qg3 Nc1 Qg1 Ke3 Bbe5 Be1 Qbb2 Rb6 Qb5 Qa7 Rd8 Qf7 Rd7 Rb8 Qa6 Rb3 Qb5 Rb2 Kb6 Kd2 Rg4 Ke2 Qg3 Kf1 Rg5 Rb4 Qe3 Rb3
3Q1q1Q/Rnbr3n/2N5/1KpN2r1/p1RQ1r1R/Pb1n3q/kRB1r2q/1n6 b - - 0 1 illegal: No possible last move
Qr1N4/p3pbb1/RB3B2/Kn1BP3/n2r1r2/bN1Q1Bq1/1k2q1bQ/3rn3 b - - 0 1 legal: proof: d4 b5 b4 c5 a4 bxa4 g4 cxd4 g5 f5 g6 f4 Ra2 hxg6 Ra3 g5 Rh3 g4 Rg3 fxg3 Kd2 Kf7 h4 Ke6 e4 Ke5 c4 g5 c5 d5 c6 a3 c7 d3 Kc3 g2 b5 g3 Kb4 Kd4 f4 a2 h5 a1R b6 g4 f5 d2 e5 Bb7 c8B Nf6 h6 Ra4+ Kb5 Na6 h7 Ne8 f6 Rb8 f7 Nc5 Bd3 Bg7 Na3 Kc3 f8B d4 Bf1 d3 Rh4 Rf4 Bd7 Nc7+ Ka5 Nb5 Nf3 g1N Rh3 g2 Nc4 g3 Rh6 Na4 Ng5 Nf3 Be2 g1B Be6 g2 Nf7 Bc5 Bd5 Ne1 Bef3 g1Q Rg6 Qd6 Nd8 Ba3 Re6 Bc6 b7 Qg3 Qe2 d1B Be3 d2 Bb6 Rg8 h8Q Bb3 Qhh2 d1R Nd2 Kb2 Qd3 Qc5 Rg6 Qc2 Re6 Bc4 Nb3 Qe2 Rf6 Rh8 Rg6 Rhh4 Re6 Ra8 b8Q Rhg4 Qb7 Rb8 Qa8 Rd4 Rh6 Rgf4 Rg6 Bh8 Bh6 Bg7 Bg5 Bb7 Bde4 Bf7 Bd5 Bc8 Rd6 Bh3 Bf6 Bg2 Bc7 Rc4 Ra6 Rcd4 Bb6
3R1q1r/1N3bNB/3n2Nr/r3BBNn/b1n1pQ1K/4k1p1/2b1P1Q1/b5qn b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 h5 d6 h4 Ra2 cxd6 Ra3 d5 Rd3 d4 Rg3 hxg3 c4 Kf7 h4 Kg6 f4 Kf5 a5 Ke4 h5 d5 h6 e5 f5 b5 f6 g5 c5 g2 Kf2 g3+ Ke1 g4 a6 d3 h7 d4 f7 b3 c6 b2 c7 b4 a7 b3 Bf4 Be6 c8N Nf6 Rh4 Bg7 f8Q Na6 Qf7 Nc5 Bg5 Nb7 Rh2 Qf8 Qc7 Nh5 Be7 Bf7 Nf3 g1R Nh4 g2 Kf2 d2 Nf5 d3 Bf6 Rh1 Ncd6+ Kf4 Qdc2 d1B Nd2 b1N Q2c6 b2 N2e4 d2 Ng5 Na3 Rh3 b1B Rd3 Bbc2 Qd5 g1N Bh3 Nc4 Qg2 Ba4 Rd5 Bdc2 Qb8 d1Q Rd2 Nba5 Nb7 Nd6 Qc7 Nac4 Rd3 Rc8 a8B Rh2 Qb8 Rc5 Rd2 Ra5 Rd3 Nc8 Rd8 N8d6 Qc7 Rg8 h8N e4 Bb2 Bc3 Qb8 Rg6 Ng7 Rh6 Ba1 Nf3 Bb2 Nh4 Ba1 Nf5 Qc7 Ke5 Ng6+ Kd5 Bb2 Nfg3 Qb8 Bf6 Be5 Rh1 Qa7 Rh2 Qe3 Qc1 Qf4 Qe3+ Ke1 Nh1 Kf1 g3 Bf5 Qc5 Qh3 Bfe8 Bd4 Rh8 Kg1 Qa7 Nc5+ Bec6 Ba1 Bb2 Qhf1 Kd4 Q1f3 Rh4 Kg2 Be8 Bd5 Nf6 Bg8 Bf7 Bh7 Rh6 Nb7 Nh5 Kh3 Bc3 Qg2 Qb6 Qh2 Qb1 Qg2 Qg1 Qg4 Ke3 Kh4 Bd2 Bf6 Bc3 Be5 Ba1 Qf4+
Qq3B1R/3b1bk1/1N5R/qr4rp/Q2pKn1R/r4Q1q/1n1PB3/r3b1qQ b - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 h5 e5 h6 exf4 Nc3 c4 Nb5 gxh6 Nd4 h5 Nb3 cxb3 Rh3 h4 Rh2 Qf6 Rh1 Qd8 Kf2 d5 Kf3 h5 a4 b5 e4 f5 g4 Kf7 c4 b2 a5 b1R a6 b3 c5 b4 c6 b2 c7 h3 g5 h2 e5 d4 a7 b3 g6+ Kg7 e6 Nd7 e7 Ngf6 e8R Bd6 Re1 Nd5 Be2 N7b6 Nh3 Nc4 Qc2 Bd7 c8Q Rg8 Ng5 Qa5 Rhg1 h1B+ Kf2 f3 Rg3 f4 Rh3 Bg2 Ra3 Ra1 Qb7 b1Q Rh4 b2 Nf7 Bgh3 Qe4 Bhe6 Ne5 Bf7 Rb3 Ra3 Rb6 Rab8 a8Q Qa1 Nc6 b1Q Ne5 Nb2 Nc4 Be7 Rc6 Bd6 Qb3 Rb5 Nb6 Be7 Qa4 Bf6 Kg1 f2+ Kg2 f1R Qf3 Rh1 Kf2 Rg1 Qh1 f3 Qb7 Ra8 Rc8 Ra7 Rh8 Rg5 Rg1 Nf4 Rh6 Kg8 g7 Be5 Rgg4 Bc7 Kg3 f2+ Qbf3 f1Q Bd3 Bfe6 Be2 Qh3+ Kf2 Ra8 Rh8+ Kf7 g8Q+ Kf6 Qe8 Kg7 Qb8 Ra7 Qba8 Bf7 Rg2 Qh7 Rg3 Qg8 Rgg4 Qb8 Rh6 Ng2 Re4 Bh2 Re8 Nf4 Reh8 Ra6 Qe3 Bg3+ Kf3 Be1+ Ke4 Nbd3 Bb2 Ra7 Bc3 Nb2 Bb4 Qd1 Bc4 Qdg4 Be2 Qg1 Qf2 Rc7 Bd6 Rc1 Qff3 Rca1 Bf8+
Q1r1b3/1bp1pN1q/1qR1bn1b/3Rq2R/1r2r3/2QNNqn1/2P3B1/2k1KR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 h4 Kf7 a4 Kg6 f4 Kf5 d4 b5 d5 g5 a5 e3 h5 Ke4 f5 e2 a6 Ke3 h6 g2 f6 b3 h7 b2 a7 g3 d6 g4 f7 b4 d7 b3 Nh3 g1Q Ng5 g2 Ne4 g3 Rh4 Nc6 Ra4 Bh6 f8R Qh1 Ra1 g1Q Qd5 g2 Rh5 Qgh2 Nec3 g1Q Rf7 Bb7 Nd2 b1B Rf6 b2 Qb5 Ba2 Rg5 b1B Qc4 Rc8 a8R Qe5 Ra3 Qf3 Rgf5 Nd4 Qc6 Be6 Nde4 Bba2 Rh5 Nf5 Ra5 Ng3 Rd5 Qh2 Rg6 Nf6 Nf2 Qg8 d8Q Qg1 Qf8 Bb3 Rc1 Ba4 Nd3 Qf7 Qc4 Be8 Rd1 Rg8 h8N Qh7 Nf7 Rb8 Ne4 Rc8 Nef2 Rh8 Qc3 Rg8 Rgg5 Rg7 Rf5 Rg4 Qg8 Rb4 Ng4+ Ke4 Rc1 Qc5 Ne3 Qb6 Kd2 e1R Bg2 Rh1 Rc5 Rh4 Rf1 Rf4 Ke1 Rg4 Qa3 Kd4 Qa8 Re4 Rd5+ Kc3 Qg7 Qef4 Rd6 Qg5 Rfd5 Qe5 Nf2 Kb2 Rc6 Kc1 Qh8 Ng8 Qg7 Qef5 Qe5 Nf6 Qc3 Qe5 Nd3+
2b3BB/R3b2p/rQ1n1r1B/4p1nr/1K1NP1rq/1B4b1/1bNrQ2r/1k1Q4 b - - 0 1 illegal: No possible last move
bN3n1K/3rk1B1/4p1r1/n1Q4Q/6B1/N3bnR1/Q1bpP1q1/1N1nrrQb b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 h5 d6 h4 Ra2 cxd6 Ra3 d5 Rd3 d4 Rg3 hxg3 Kd2 g5 Kd3 b5 Ke4 d5+ Ke5 g2 c4 e6 f4 b3 h4 g3 f5 b4 c5 b2 f6 g4 h5 d3 a5 d4 f7+ Ke7 c6 d2 h6 d3 c7 b3 a6 Bb7 c8Q Rh7 a7 Nf6 Nh3 g1N Qc7+ Nfd7+ Kf4 g2 Kg5 g3 Kg6 Nf3 Qc6 g1R Na3 b1B Qcc2 b2 Nf2 g2 Rh3 Nc6 Ne4 Na5 Nc3 Ba2 Qe1 b1B Rg3 d1N Bb2 d2 Qf2 Rh1 Qg1 Bad5 Qf5 Rb8 a8Q Bc2 Ncb1 Qe8 Qaa7 Ba8 Bg7 Rb4 Qa6 Rf4 Qc4 Qc8 Qb3 Qb7 Qa2 Rh8 h7 Rg8 h8Q Rh7 Qe3 g1R Bh3 Re1 Bg4 Qb6 Qc3 Qf2 Qd4 Qg2 Qg1 Nfe5+ Kg5 Rff1 Qff2 Bde4 Qf5 Nf3+ Kg6 Rh4 Qh5 Bed5 Bh3 Rd4 Kh7 Bde4 Bg4 Rd6 Ba1 Rg6 Kh8 Bh6 f8N Be3 Qc5 Beb7 Bg7 Bc6 Nh7 Nf8 Nf6 B6e4 Nd7 Bed5 Qcc4 Bdb7 Nb8 Rd7 Qc6 Qf2 Bh6 Ne5 Qb5 Bh1 Qbc4 Nf3 Bg7 Qg2 Qcc5+
n1RKNbqq/1QpR1rN1/R1Nr4/2n2bp1/3q4/2bp1N2/2P5/1nr1Bk1Q b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nh3 h4 Nf4 h3 Bg2 hxg2 Nh3 fxg6 Ng1 g5 Be3 g4 Bg5 Ra4 Bc1 Ra8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 Ke4 h4 d5 f4 d3 a4 g3 a5 d4 a6 b3 h5 b2 f5 d2 a7 Ke3 h6 Kf2 e4 Rh7 e5 Nd7 f6 Nb6 f7 Bf5 e6 Nf6 e7 Nfd7 e8N Nc5 Nc3 b1N Qg4 d1Q Nce2 Kf1 Nf3+ g1Q Qh5 g2 Bd2 g5 Ra4 d3 Ra6 Qc1 Bb4 Qb2 Ned4 Rc8 Qh2 Na8 Nc6 Qh8 Be1 Qd5 Qh5 Rd8 Rh4 b6 Rd4 Rd6 Qh1 Rg7 h7 Qa2 Kb4 b5 Rd5 Qb3+ Ka5 b4 Kb5 Qa2 Rd4 b3 Rd5 Nb6 a8Q b2 Qb7 Na8 Rd4 Rdg6 Rd8 Rd6 Rd7 Qe6 Re7 Qc8 Rd7 Qg8 h8R Qd8 Qh5 Qd4 Qh2 g1B Qh1 Be7 f8N Rf7 Ne6 Bf8 Qh5 Bh2 N6g7 Be5 Qh1+ Qg1 Rh6 Bc3 Re6 Qf6 Ree7 Qe5 Rd8 Qh2 Red7 Qhh8 Rb8 Nd2 Rc8 b1R+ Nb4 Rd1 Nc6 Rc1 Ncd4 Rd5 Kc6 Ne6 Rdd8 Nb1 Rd6 Rf6 Kd7 Nc5+ Kd8 Rf7 Rd7 Rd6 Qh5 Qf2 Nc6 Qd4 Qh1+
1b3k2/q3Bp2/2b1RBQK/p1q4n/1nRrqPr1/b1q1RB1p/B7/1qN1Q3 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 a5 gxh4 a6 d3 Nd2 e5 Ndf3 bxa6 Bg5 a5 Nd4 exd4 Bc1 a4 Kd2 a5 b4 d5 e4 h5 c4 h3 g4 h2 e5 a3 b5 a2 c5 h4 c6 h3 g5 Qf6 e6 Qe5 g6 Ba3 b6 Kf8 c7 Bb7 c8B Bc6 b7 Nf6 Qe1 Nh5 Ne2 Na6 b8B Rg8 Bc7 Nb4 Bb7 Rd8 Bb2 Rd7 Rb1 a1B Rc1 Qf6 Rg1 h1Q Bd8 Qe4 Rg3 Qe7 f4 Qc5 Rc4 Rg7 Kd1 d2 Re3 Qa7 Nc1 Rd6 Ke2 d1Q+ Kf2 d3 Be2 d2 Bbf6 d4 Bf3 d3 Ba8 Rd4 e7+ Ke8 Bb7 Qb3 Bc8 d1Q Be6 Rg8 g7 d2 Bd5 Qdc2 Be6 Rf8 g8Q Qbc3 Qg6 Rg8 Bd5 Qb1 Be6 d1Q Bd5 Ng7 Kg3 Nh5+ Kh4 Qdc2 Kg5 Qf2 Kh6 Qg1 Kh7 Qg5 Be6 Qgc5 Kh6 Rg7 Qgg3 Rg4 Bd5 Kd7 e8R Kd6 Re5 Kd7 Be6+ Ke8 Bd5+ Kf8 Re6 Rh4 Qg5 Rg4 Qg6 Rd1 Kh7 Qcb3 Rc2 Be5 Kh6 Rd4 Rcc3 Q3c2 Ba2 Bb8 Rc4 Qc3 Bde7+
K3Q3/Q2q2R1/R3Q3/1pkn1p1r/b1n2q2/b3nqqq/1Pp1N1B1/B2B1Qr1 b - - 0 1 illegal: Other
1RBqnb2/2Q2q2/p1n1r1b1/r2r1p2/r2BpN2/P3r2Q/B2B1bRR/1K5k b - - 0 1 illegal: No possible last move
K4nQR/3p1kp1/p7/bR4b1/q1b1n2N/1qn4R/b2P1rBB/2Q1brQQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 b5 c5 Nc3 e5 Na2 exf4 Nb4 cxb4 Kf2 f5 e4 f3 Ke3 f4+ Kd4 b3 Kd5 a6 h4 a3 c4 b2 c5 b1N e5 g3 b6 a2 b7 g2 e6 f2 e7 f3 h5 Qb6 c6 Qb3+ Kd6 Kf7 Kc7 Nf6 e8R Nc3 h6 Bb4 h7 Ba5+ Kd6 Rf8 c7 Nc6 b8Q Nd8 h8Q Bb7 c8Q Ne6 Qh6 Bd5 Rb1 a1B Ba3 Qa4 Rb4 Ba2 Qa7 Qb3 Qh7 Nfe4+ Ke5 Bb2 Rb5 Qa4 Bd6 Ba3 Bd3 f1B Rh3 f2 Nf3 g1B Nh4 Bc5 Qc6 Be3 Qc1 Bg5 Bc4 Rb8 Bd5 Bfc4 Rd8 f1Q Qab6 Ng3 Bg2 Bf2 Qd5 Be1 Qg1 Qf3 Bc7 Qfd1 Kd6 Qdb3 Qc6 Kf6 Qce4 Rf7 Rh8 Nf8 Qeb1 Rb7 Bb8 Rb6+ Kc7 Nge4 Kc8 Ke7 Bh2 Rbf6 Kb8 Rf1 Ka8 R7f2 Qa1 Kf7 Qh1 Nd1 Qd4 Ndc3 Qa7 Rf5 Qag1 R5f2 Qg8+
2Bb4/1qqn1bQp/rQR1r1p1/1k4PB/3K4/1p6/n2nbnNN/3QQrB1 b - - 0 1 illegal: No proof kernel
1rr3n1/1Nqq1bn1/2N2p2/r1Qn1PQQ/1q5p/1pQ5/B2nN2b/1RK1kR2 b - - 0 1 legal: proof: d4 a5 Kd2 c5 h4 cxd4 b4 axb4 h5 e5 h6 e4 Na3 e3+ Kd3 gxh6 Nb1 h5 Bd2 exd2 Rh3 h4 Rh2 Nc6 Rh1 Nb8 g4 Ke7 f4 Kd6 e4 Kc5 c4 b5 Kc2 h5 a4 d5 a5 f6 f5 d3+ Kb2 Kd4 c5 Ke3 g5 Kf2 c6 b3 e5 d4 e6 b4 g6 h3 a6 h2 a7 h4 e7 Be6 e8N Qc7 g7 Na6 Nd6 Bf7 Ra5 Nc5 Qh5 d1Q Ra1 d2 Ba6 d3 Qf3+ Ke1 Ra3 Rb8 a8Q Ne6 Nb7 Bd6 Qh5 Qg4 Qa7 d1N+ Kc1 Ne3 Ra1 Nd5 Nc3 Rc8 Nb5 d2+ Kb1 b2 Nd4 Qf4 Qc5 d1R+ Kc2 b1N Bc4 Nd2 Ba2 b3+ Kb2 Qd7 c7 Rc1 Nc6 Qb4 Rb1 Ra8 c8Q Ra5 Qb6 Nh6 Nd4 Rf8 Qcc7 Rb8 g8Q Bg3 Qgg4 Ng8 Qgg5 Ng7 Qa7 Kf2 Qe5 Rcc8 Nge2 Bf4 Rhd1 h1Q Qb6 Qh3 Qc5 Qg3 Kc1 Qh2 Qc2 Qg3 Qd6 Be5 Qc3 Qf4 Nc6 Qfc4 Ncd8 Qcc7 Nc6 Bh2 Rh1 Bg1 Qdc5+ Kf1 Rh3 Ke1 Rf3 Bh2 Rf1+
2rNb1Q1/2b1p2B/Q2R1rq1/nq3Br1/2pKb2k/pBn4N/P4Qr1/2B4q b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 cxb4 c5 d5 Na3 g5 Rb1 gxh4 Rb2 Bh3 Rc2 Bc8 Rc4 dxc4 Ke2 Kf7 Ke3 Kg6 d4 Kg5 g4 a5 c6 h5 f3 b5 d5 a4 c7 h3 d6 h4 d7 b3 Kd4+ e3 Kc3 h2 Nb1 a3 Ne2 h3 f4+ Kh4 f5 b2 g5 b4+ Kd4 b3 f6 Bg7 g6 Rh6 Kd5 Nc6 f7 Qe8 d8Q Nf6+ Kc5 Nd5 f8Q Na5 Qd2 Bd7 c8B Be5 g7 Nc3 g8B Rf6 Qd6 Qg6 Ng1 e2 Nd2 b1Q Ne4 e1R Ng5 b2 Nf7 Re2 Qa6 Rg2 Be2 Bc7 Kd4 Be8 Bf5 Rc8 Bd1 Rg5 Bb3 Rg2 Ne2 Rg5 Rg1 h1R Bh7 h2 Rd1 Rhg1 Nf4 h1Q Nh3 R1g2 Qg8 Qc2 Qdd6 b1B Nd8 Qb2 Qh2 Bd3 Ke3 Bb1 Rd6 Be4 Kd4 Qb1 Ba4 Qb5 Bb3 Bd5 Qg1 Be4 Qf2+
4rqQb/1B1bnpR1/np1Q2p1/kqBQ1b2/1b2q1P1/N2n3N/QNK5/7r b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 g4 a5 d4 cxd4 Qd3 axb4 Qd1 h5 Ra3 h4 Rg3 hxg3 Kd2 d5 e4 Kd7 h4 Kc7 c4 Kb6 e5 b3 e6 d3 e7 g2 e8N d4 h5 g6 h6 f3 h7 b2 c5+ Ka5 c6 b6 c7 f2 Rh3 Na6 Na3 b1B Nd6 Bd7 c8Q Ne7 Qb7 Rb8 Be2 f1Q Bf3 Bg7 Rh4 Qf8 Nh3 g1B Bd5 Re8 Ndc4+ Kb4 Nb2 Ka5 Bg2 Qf5 Qa8 Qb5 Qd5 Bh2 Qa2 Bd6 Bb7 Bc5 Qd5 Be5 Qd6 Bf6 Qe2 Bb4+ Kd1 Be5 Be3 d2 Qf3 Bbf5 Qfd5 Bfe6 Kc2 d1N Bg1 Nf2 Rh5 Nd3 Be3 Rg8 h8Q Bf5 Rh7 Bf6 Qg7 Rh8 Qg8 Be5 Rg7 Bf6 Nf2 Rh1 Nh3 Be5 Rh7 Bh8 Rg7 Ne1+ Kd1 d3 Bc5 d2 Qa2 Nd3+ Kc2 Rg1 Qad5 Rh1 Nb1 Nc7 Ba8 Ka6 a5 Rd8 Bg1 Re8 Qa2 Qd5 Bb7+ Kb5 a6 Qe5 Na4 Ka5 Na3 Qd5 Nb2 Qe5 a7 Qb5 a8Q+ Na6 Qc8 Nf4+ Kb3 d1Q+ Qc2 Qe1 Qg2 Qb1 Qgd5 Qe4 Bc5 Nd3 Kc2
2R1n1nr/3Bn1pN/Qq5b/p2rq1Rq/KBp1kq2/P2r2Q1/1BB3R1/1b6 b - - 0 1 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 g6 f5 Nc3 f4 Ne4 hxg6 Bg2 g5 Ng3 fxg3 Bf1 g4 Kd2 Kf7 Kc2 Kg6 e4 d5 h4 c5 f4 a5 b4 c3 Kb3 d3 b5 d2 b6 d4 a3 c2 b7 g2 e5 Kf5 h5 g3 h6 d3 e6 c4+ Ka4 Qc7 h7 Be7 Ne2 g1N Rh2 g2 Qe1 d1R Nc3 d2 Qg3 Nh3 Nd5 g1Q Bb2 c1Q Nf6 Ng5 Rg2 Qgb6 Bd3+ Ne4 Bc2 Nc6 b8Q Qe5 Qa7 Bd6 Qa6 Nce7 Rb1 Bb7 Ra1 Rd8 Ra2 Bc5 Ra1 Be3 Ra2 Nc8 e7 Rd3 e8B Ned6 Bb5 Ne8 Rg1 Ke6 f5+ Kd6 Bc6 Bh6 Bd7 Be4 Rg2 Nce7 Ra1 Rh1 Rb1 Qf1 Ra1 Qf3 Rag1 d1Q Qf2 Rb3 Bb5 Nc7 Bb1 Qff4 Rg3 Qh5 R1g2 Rd1 Rg5 Rd4 Qe3 Kc5 Qe1 Rd5 Bd7 Rc3 Qg3 Kd4 Ba2 Bb1 Bb3 Qee4 Bc2 Ke5 Bc1 Rcd3 Bb2+ Qed4 Ng4+ Ke4 f6 Qc3 f7 Nf6 f8B Rg8 h8R Ng6 Bc1 Qce5 Bb4 Ne7 Bb2 Nce8 Bd2 Nd6 Bb4 Rb8 Rc8 Ra8 Rc5 Rh8 Rc8 Nde8 Ra8 Qf3 Rc8 Nfg8 Nf6+ Ke3 Nh7 Ke4 Bb5 Qff4 Bd7
k5Q1/2b1r2N/Kn4p1/4b1np/2nQrq2/3rR1Q1/1r1QRpNP/R3q1Bb b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 e6 g5 f6 Bg2 fxg5 f6 g4 Be4 Nh6 Bd3 Ng8 Bf5 exf5 Kd2 d5 Kd3 Kd7 c4 Kc6 e4 h5 a4 b5 f7 Kb7 a5 f4 c5 f3 e5 g3 e6 g2 e7 g6 e8Q b3 Nh3 g1B Ng5 b2 Qc2 b4 Bd2 b3 Be3 Nd7 Qf2 Ra7 c6+ Ka8 a6 Qf6 c7 Bd6 f8Q Be5 Ne6 Nh6 Ra3 Qf4 Qfe7 Nf7 Qf6 Ng5 Bc1 Nb6 Qd7 Re8 Nc3 b1R Ra1 b2 Be3 Bb7 Ne4 Rd1+ Qd2 b1R Qd6 Rb2 Ra3 Bf2 Re1 Bg3 Bg1 f2 Re2 Bc6 Rb3 Rb7 a7 Re7 c8Q+ Rb8 Qg8 Rbe8 Re1 Bb7 Ke2 Bc6 Re3 d3+ Kf1 d4 Qfg7 Qg4 Nf6 Bh1 Nf4 Qf5 Ng2 Qf4 Qa3 Bc7 Nh7 Be5 Qc2 d2 Ke2 Bc7 Kd3 Re4 Qe6 Re7 Qeg8+ Qf8 Q7h8 Rbb1 Qgg7 Kb7 a8R Qf3 Qd8 Bge5 Qf7 Qf4 Rh3 Rb4 Qac3 Rb5 Ra1 Rb2 Qd7 Kb8 Re2 Kb7 Rc1 Ka8 Rb1 Nc8 Kc4 d3+ Qdd4 Nb6+ Kc5 Rb3 Rb2 Rb1 Qc1 d1N Ra2+ Ra3 Ra1 d2 Qce3 Nb2 Kb5 d1Q Qcd2 N2c4+ Qb3 Qe1 Qg8+ Kb7 Rf3 Rb2 Rh3 Rba2 Qf3 Rd3 Qg4 Rc2 Rhe3 Ra2 Qg3 Rc2 Qg7 Kb8 Qf7 Rb2+ Ka6 Ka8 Qg8+
2r1B2N/q1Qn4/1q3pnb/3Kp1q1/1Qp1nk2/3N1PR1/bqRr3b/1NRR4 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 d5 c5 dxe4 Ba3 b6 b5 bxc5 Bb4 axb4 Qf3 c4 Qg4 Bh6 Qd1 Bf8 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 Ke5 a4 h5 g4 c3 d3 f6 b6 c2 b7 c1Q+ Nd2 h3 g5 h2 g6 h4 a5 h3 f3 b3 g7 b2 a6 b1Q a7 Be6 Ne2 Nd7 b8R Ba2 Qb3 Qb6 Nf4 Qbb2 d4+ Kf5 d5 e5 d6 Ne7 g8R Ng6 Be2 Bh6 Rd1 h1N Bb5 h2 Rbc8 Ng3 Qb4 h1Q Rg7 Rb8 a8Q Rd8 Qc6 Qh2 Rc7 Rbc8 Rg8 Kg5 Nd3 Qa3 Qb7 Qaa7 Rc6 Qb2 Rac1 Qh5 Nb1 Qg4 Qc7 Qh4 Bc4 Qh5 Bf7 Qg4 Rc2 Kf5+ Kf2 Qg5 Be8 e3+ Kg2 e2 Kf2 Nf4 Ke3 e1B Rcc1 Ne4 Rg7 Nf8 d7 Bg3 Rg6 Bh2 Rc2 Qh4 Rg3 Qg5 Rcc1 Ra8 Rc2 Rdc8 d8N Nd7 Nf7 Ng6+ Nf4 Rd8 Nh8 Rac8 Rcd6 Nb8 Rdc1 Rd7 Rdd1 Rd2 Qc4 Nd7 Qb3 Rf2 Kd3 Rd2+ Kc4 Qba3 Nd3 Qb2 Kd5 c4 Qa4 Rf2 Nc5 Kf4 Qb4 Rd2+ Nd3+
5Rr1/3K1BN1/3b2R1/1p1Rq1RQ/2Q1rQ1p/r1b2nq1/1P1rpk2/nb3n1N b - - 0 1 illegal: No possible last move
NQb2r2/2pnRq1n/1q2pRnN/3pb1Q1/3qnb2/2k3r1/KR2P3/4QQB1 b - - 0 1 illegal: No proof kernel
k2K3Q/4N3/Q1b2br1/2nnp2p/rrrq2rP/2pR3b/1BNRr1Q1/1R2Q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 d5 Bd3 dxc4 Be2 g6 Bg4 fxe4 f5 Ra7 f6 Ra8 Bf5 gxf5 Ke2 Kd7 Ke3 Kc6 Kf4 b5 Kg5 Kb7 h4 h5 a4 e5 d4 c5 g4 c3 a5 e3 d5 b3 d6 c4 d7 f4 Ra3 e2 Be3 e1R Ba7 c2 Bc5 c1R Qe2 f3 Qf1 b4 Nh3 b2 Rd3 b3 Ba3 f2 Nf4 Ne7 f7 Na6 Kf6 Nc5 g5 Re2 g6 Rh6 Qe1 f1B Nd5 Bh3 a6+ Ka7 Rg1 Bb7 Rf1 Kb8 Rh1 Bc6 a7+ Kb7 Rg1 Qb6 d8R Rc3 Rd2 Rg3 Rh1 c3 Rd3 Rg4 Rd6 Nf5 Ne7 Ne3 Rd2 Qb4 R6d3 Qd4 Rf1 Rc8 Rh1 Ka8 Rf1 Rh8 g7 Rh7 g8Q Rhg7 Qh8 R7g5 Rh1 Bh6 f8Q Bg7+ Kf7 Bf6 Qfh6 Rgg8 Qg6 Nd5 Qe4 R8g6 Qg2 Be8+ Kf8 Rc6 Rg1 Ra6 Rh1 Bc6 Rf1 Ra4 Rg1 Bb7 Ke8 Bc6+ Kd8 Bb7 Bb4 Bc6 Na3 b1R Nc2 b2 Ba3 Rc4 Rh1 Ra1 Rf1 b1R Bb2 Raa4 Rg1 Kb7 a8Q+ Kb6 Qc8 Ka7 Qa6+ Kb8 Bc1 Rb6 Bb2 Rbb4 Qef2 Ra5 Rb1 Raa4 Qb5+ Ka7 Qe1 Ka8 Qa6+
rb2B3/k2pR1BQ/q3b1Rb/r2nNbQ1/7p/1pBRb3/7P/br2BKn1 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 bxa4 b5 fxg4 Nc3 e5 Na2 exd4 Nb4 cxb4 e4 h5 f4 a5 c4 g5 f5 h4 e5 b3 c5 g3 b6 g4 b7 d3 f6 g2 c6 g3 e6 d2+ Ke2 a3 e7 a4 c7 a2 Nf3 g1R Ng5 a3 Qe1 d1B+ Kd3 g2 Ne4 Rh5 Nd2 Rha5 Nc4 Nc6 b8B Nd4 Ke3 Bb7 Kf2 Ne2 c8Q Bh6 Ne5 Bd5 Qd2 Bc2 Qg5 Be6 Bd2 Bcf5 Qc2 Qc8 Be1 Qa6 Rd1 a1B Rd3 a2 Ba7 Bc3 Bd4 a1B Qb1 Bb4 Bdc3 Bd6 Qc2 Bb8 Qb1 Nd4 Be2 Nf3 Bd1 Rf1+ Ke2 g1B Qc2 Bc5 Rg1 Bf2 Rg3 Rh1 Rg2 Ng1+ Kf1 Be3 Bh5+ Bf7 Ng6 B7e6 Rg3 Kf7 e8R Ne7 Rg2 Nd5 Re7+ Kg8 Ne5+ Kf8 Rf7+ Ke8 Re7+ Kd8 f7 Kc7 f8B Kb6 Be8 Kb7 Bg7 Kb6 Qf4 Kb7 Rg6 Ka7 Qg5 Be4 Bf2 Nc7 Ke1 Bc6 Rd2 Be4 Rf6 Nd5 Rd1 Bh7 Qe4 Bg6 Rd3 Nf3+ Ke2 Rb1 Bfe1 Ng1+ Kf1 Bh5 Qh7 Bhg4 Rg6 Bh3+ Qg2 Bhf5 Qg5
1r3Nr1/2rn1pb1/RN1K4/r2n2n1/B3Nk2/rN1pB1pQ/2qQ2P1/nb2B3 b - - 0 1 illegal: No possible last move
Qn4r1/bk1rp1Q1/NB4Q1/2r2n2/2p3b1/n3QN1p/1rP1n2q/1rB1KB1R b - - 0 1 illegal: No possible last move
6B1/2KQ1q1N/2p1pQ1n/p1r4R/2QQb2b/1r1n1bkR/1bPR3q/3N1bb1 b - - 0 1 illegal: No possible last move
1r2n1r1/q1pQB1rp/4r1B1/1b1n3Q/1b3N2/R2Qk3/Rb1p3P/1RbQ1K1b b - - 0 1 illegal: No possible last move
4Nn2/1p1bQQN1/4qn1n/1Q1p1p2/3Rr1b1/KQ1rRPb1/4r2b/1R1Bk1n1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Be3 d3 Bd4 exd4 Bh3 hxg6 Kf1 g5 Kg2 g4 Kg3 d2 Bf1 Qf6 Kg2 Qd8 c4 Ke7 a4 Ke6 h4 Ke5 e4 Kf4 f3 Ke3 a5 d5 a6 g5 e5 f5 e6 d3 e7 g3 e8Q+ Be7 h5 g4 h6 b3 h7 b2 c5 Nd7 c6 Ra7 c7 Nf8 Nh3 Qd6 Be2 Qe6 Kf1 Bd6 Nc3 b1N Nb5 Nc3 Ra3 Ne4 Nf4 Nef6 Nh5 Ra8 a7 Bd7 c8R g2+ Kg1 Bc7 Nd6 Bb8 Qg6 Be8 Qc2 d1B Rc4 Bc7 Qb1 Kd2 Kf2 Bda4 Rd4 Bad7 Qb5 g1B+ Kf1 Bf7 Ne8 g3 Rb3 Rc8 a8Q Bd6 Qa3 Rc2 Qg7 Bh2 Qa2 Bg6 Qe7 g2+ Kf2 Bf7 Rhb1 g1N Rc3 Bdg3+ Kf1 Nh6 Qab3 Rg8 h8Q Nhg4 Qh7 Nh6 Qg6 Rg7 Qh7 Rg4 Qg8 Rh4 Nhg7 Bh5 Qgf7 Re4 Kg2 Bc7 Kf2 Bg4 Kf1 Ke3 Ke1 Bcg3+ Kd1 Kf2 Rc1 d2 Re3 Rc3 Rb1 Rd3 Kc2 d1R Kb2 Re1 Bd1 Re2+ Ka3 Kf1 Qh5 Ke1 Qhf7
rb1q4/4nr1B/b2p1QN1/kn1bN3/bpQ1RrrN/2pP4/1Q1Q4/nK4B1 b - - 0 1 legal: proof: b4 b5 c4 bxc4 f4 g5 h4 gxh4 a4 e5 b5 exf4 Ra2 a6 Rb2 a5 Rb4 axb4 e4 h5 g4 c5 e5 f5 b6 h3 g5 h2 b7 f3 e6 f4 a5 c3 a6 c4 g6 f2+ Ke2 h4 d3 h3 a7 c2 Kd2 f3 g7 Bd6 e7 Nc6 b8N Ba6 Bg2 f1R Qe2 f2 Be4 Nd4 Nc3 Rh4 Nc6 Bb8 Ne5 d6 Nd5 Rg4 Nf4 Nb5 Bb2 c1N Kc2 Nb3 Bd4 c3 Qd2 Nc1 Ngf3 Nb3 Rg1 h1B Bh7 h2 Nh4 Bc6 Nfg6 h1B Rg3 Bhg2 Re3 Bgd5 Re1 Na1+ Kb1 Rh1 Bc5 f1R Bg1 Rf7 Re4 Rh2 Qb2 Rhf2 Qd2 R2f4 Qb2 Nh6 Qd2 Nf5 g8Q+ Rf8 Qe6 Rf7 Qf6 Bd7 Qb2 B7c6 Nc4 Kd7 e8Q+ Kc7 Qee6 Ne7 Nce5 Rf2 Qd2 Kb6 Qb2 Ka5 Qd2 Bb3 Qc4 Ba4 Qb2 Bd5 Qd2 Bc7 Qb2 Rff4 Qd2 Rc8 a8Q Rb8 Qa7 Ra8 Qaf2 Bb8 Qfe2 Rf8 Qb2 Rf7 Qed2
rN2n3/1Kp2p1R/4b1Qn/1N1p2BQ/5Qn1/RN1bbPb1/4rqr1/N4kr1 b - - 0 1 legal: proof: c4 g5 d4 d5 b4 a5 h4 gxh4 e3 axb4 Bd3 e6 Be4 dxc4 d5 Bh6 d6 Bf8 Bd5 exd5 Ke2 Kd7 Kf3 Kc6 a4 Kc5 g4 h5 a5 b5 g5 b3 a6 b4 a7 c3 g6 Kc4 g7 c2 e4 h3 e5 b2 d7 h4 e6 b3 e7 h2 e8N h3 Qd2 Nh6 g8Q Bd6 Qg7 Rg8 Ke3 Qh4 d8Q Bg3 f3 Nd7 Ne2 Nf6 Ra3 Be6 Qg6 Rg7 Nd4 Rg8 Nc3 b1B Nce2 b2 Nb3 Rg7 Ned4 Rg8 Ng7 Ne8 Ngf5 Rg7 Nb5 Rg8 Rd1 h1N Nfd4 h2 Na1 Nf2 Ndb3 h1R Qdg5 Rg1 Q5h5 Rg2 Rh1 Rg1 Ke2 Nfg4 Qdg5 Rg7 Q5f5 Rg8 Bg5 c1B Qf4+ Be4 Rh3 b1R Rh2 Be3 Rh1 Rb8 a8N Rb2+ Nd2+ Kc5 Nb6 Ra8 Nd7+ Kb4 Nb8 Rg7 Qe5 Bc2 Ndb3 Kc4 Rh3 Rg2+ Kf1 Be4 Qf4 Rbf2+ Ke1 Kd3 Kd1 Rd2+ Kc1 Ke2 Rh1 Rd4+ Kb2 Bd3 Kc3 Re4 Rh2 Re5 Kb4 Kf1 Rh3 Bb6 Rh2 Ree2 Rh3 Ba7 Ka5 Rg1 Ka6 Be3+ Kb7 Rg8 Rh1 Qh2 Ra5 Qf2 Ra3 Nf5 Qgh7 Bh2 Be7 Ne5 Qhh4 Rg2 Qg6 Ng4 Qhg5 Bg3 Rh7 Nfh6 Q5h5 Ng7 Bf6 Ne8 Bg5
1r1B1Qrb/1rbB3p/p2k4/N2b1qQ1/1n3qRp/P1Qrn3/1Kb1R2B/7B b - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 c4 bxc4 e5 f5 Nd2 g5 Ne4 gxh4 Bf4 fxe4 Bg5 Ne7 Bc1 Ng8 Kd2 Ke7 Kc2 c5 g4 d5 b4 d3+ Kc3 a6 f4 d2 a3 d4+ Kb2 e3 b5 d3 g5 c3+ Kb1 c2+ Ka2 e2 e6 e1B g6 c4 b6 c3 f5 Nc6 g7 Nf6 g8Q Ng4 f6+ Kd6 e7 Rb8 e8B Bg3 f7 Ne3 b7 Qa5 Qe1 d1R Bd7 d2 Qg5 Rg8 Bg2 Qf5 Nf3 Bg7 Rg1 Bh8 Ne5 Nb4+ Kb3 Bh2 Bh1 Bf4 Bb2 c1R Ra2 c2 Rg4 Rb1 Nc6 c1Q Na5 Bh2 Ka4 Qc4 Bf6 Qcf4 Bd8 Rb3 Rc2 Rd3 Ra2 Rb1 Rc2 d1B Qc3 Rb3 Re2 Bc2 Reg2 Ra8 Re2 Ra7 b8B+ Rc7 Reg2 Bb7 Re2 Bd5 Ba7 Ng2 Bg1 Bg3 Bh2 Ne3 Bc6 Rb7 Bd7 Rb8 Nc6 Qf1 Bg2 Na2 Nd4 R3b7+ Nb3 Nb4 Bh1 Q1f3 Ba5 Q3e4 Bd8 Qd4 f8Q+ Ke5 Bc6 Ke6 Bb5 Bc7 Be8 Bb1 Na5 Qdf4 Bb5 Bc6 Kb3 Bd5+ Kb2 Bc2 Qe8+ Kd6 Bd7 Bd1 Qf7 Bc2 Qf8+
n3n1b1/np4br/BRR3p1/1qnbb3/3kqQp1/KP4NQ/1B6/1B1rQB2 b - - 0 1 illegal: No proof kernel
N2K3Q/npr1Q1Rp/3R3P/2Rq3Q/q2b2RB/4Nbn1/pb1p1nqk/3r4 b - - 0 1 illegal: No proof kernel
2bb2K1/2qr1N1n/1R2pNB1/Q3PpQ1/RnR2n2/k2rprq1/1R5p/1Q4q1 b - - 0 1 illegal: No possible last move
Nb1K1n1q/qNn3R1/Qrp3Q1/1p2B1Q1/2P1bQ2/3p3k/p3n2R/1rR1qr2 b - - 0 1 illegal: No proof kernel
rb1Q2N1/R1r5/2R4q/1Q1bQ1Bp/K1p1Bqpb/5p1k/n1rRq2P/5Q1n b - - 0 1 legal: proof: f4 a5 g4 f5 b4 fxg4 c4 axb4 f5 d5 Nc3 dxc4 Nd5 e5 Nf4 exf4 e4 Kf7 d4 Kf6 Kd2 Kg5 Kc2 Kh4 a4 b5 d5 c5 d6 h5 a5 g5 d7 f3 e5 g3 e6 g2 e7 b3+ Kc3 g4 e8R b4+ Kb2 c3+ Kb1 c2+ Kb2 c4 f6 Rh7 f7 Nh6 a6 Qc7 d8Q+ Be7 f8Q Bb7 a7 Bd5 Ra4 Qf4 Qh8 Nf5 Qc8 Ng3 Rg8 Nc6 Ne2 Kh3 Nd4 Bh4 Qd8 Rc7 Bd3 g1B Nf5 Qh6 Bf4 c1R Bg5 Bc5 Rg1 Nh1 Be4 Bd6 Ne7 Bdg3 Rg6 Rc2+ Kb1 b2 Ka2 b3+ Ka3 b1Q Rg2 b2 Qf1 Be5 Ng8 Nb4 Rc6 Qe1 Raa6 b1Q Ka4 Bf4 Qe5 Qe2 Qb8 Na2 Qb5 Qc1 Ra5 Rd8 a8Q Bfg3 Qc8 Qf4 Qd7 Ra8 Qd8 Bf2 Raa6 Ba7 Ra5 Bb8 Ra7 Qee3 Qd1 Qe1 Rd2 Qe2 Qf1+
knK1b1R1/p3p3/1Q2n2p/n1B1r2B/p1B1QbQN/P4r2/1q6/B3Rrrb b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 e5 g5 e6 gxh4 Nc3 fxe6 Rh2 e5 Na4 bxa4 Rh1 e4 Kd2 d5 b4 Kd7 f4 Kc6 g4 Kb7 c4 h3 c5 h2 f5 d3 Kc3 h6 Kd4 d2 Ke5 e3 f6 d4 c6+ Kc7 a3 d3 b5 e2 f7 e1R+ Qe2 d1B g5 d2 g6 Bb7 Ke6 Qd4 g7 Nf6 g8B Nfd7 Nf3 Qb2 Nh4 Bg7 f8B Be5 Bg7 Bf4 Qe4 Bh5 Be2 d1N Be3 Be8 Rg1 h1R Bc5 Ne3 Bh5 Nc4 b6+ Kc8 c7 Na5 Bgf7 Rg8 Rg3 Re3 Re1 Rf1 Bc3 Rf8 Rg8 Bc6 B3d4 Kb7 Bh8 Qc2 Ba1 Qb2 Qe5 Bh1 Qe4+ Ka6 b7 Ref3 Bfg6 Rf5 c8Q Rg5 Bf7 Rgg1 Kd5 Nf8 Qh3 Ne6 Qg4 Nd7 b8Q Re3 Qe5 Kb7 Qd6 Rc8 Qb6+ Ka8 Bd4 Rcc3 Bc5 Nb3 Kc6 Re2 Qd5 Rcf3 Qd4 Re5 Qe4 Ng7 Bc4 Na5+ Kc7+ Rd5+ Qd6 Ne6+ Kc8 Nb8 Qb1 Rg5 Qb6 Re5 Qe4+
5q2/2BKQ3/pp5r/rnQ5/pP2Bk2/rnp2Br1/NRq1BN1b/rb1N4 b - - 0 1 illegal: No proof kernel
4k1rq/b1bNpn2/1p6/Qr1NPrpr/1NqBbpN1/1B4n1/Q4Q2/R2K4 b - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 g5 f4 a5 g4 axb4 Ra3 h6 Rg3 gxf4 g5 Bf5 g6 Bc8 Rg5 hxg5 e4 f5 h4 c5 d4 b3 a5 b6 h5 f3 g7 c3 d5 b2 d6 c2 a6 c4 h6 c3 h7 Nh6 g8N Nd7 a7 Bg7 Bc4 Nf6 Bb3 Bb7 Nh3 Nf7 Qe2 Nh5 Be3 c1B Nf2 c2 Nc3 b1R Nd5 Be5 Bd4 Ng3 Ng4 Bb2+ Kd2 f2 Qc4 Rc8 a8Q f1R Qa5 Rf3 Rd1 c1Q+ Ke1 Rf4 Qe2 Rf3 Qf2 Qc4 Rc1 Bc3+ Kd1 Bd2 Qa2 Bdf4 Qa5 Rb2 Ra1 Rb8 Ba2 Rb5 d7+ Kf8 N8f6 Bc7 Bb3 Qc8 d8N Rg8 Nh5 Ke8 h8Q Bfd6 e5 f4 Nb4 Be4 Qfa2 Rf2 Nd5 Rh2 Nc6 Ra8 Nde3 Bb8 Qh6 Bdc7 Nd5 Ba7 Ncb4 Rb8 Nge3 Qh3 Ng4 Rd8 Qh8 Rd6 Qf2 Rf6 Qh6 Rf5 Qe6 Kf8 Nhf6 Qh8 Nd7+ Ke8 Qc6 Rh5 Qa8+ Bab8 Q8a6 Ba7 Qaa2 Bcb8 Q6a3 Bc7 Qa5
BrrNQ3/1Q2p3/K7/1nb1Q1nN/k3pbp1/N6p/NRR1Pq2/q1bbn3 b - - 0 1 illegal: No proof kernel
Rb1RQR2/1prr2rb/3q1R2/1k4Nb/1P5B/1rp3nq/1npBp1Q1/1B4K1 b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 g5 c5 gxh4 Na3 a4 Nb5 d6 Nd4 dxc5 Nb3 axb3 Be2 c4 Bd3 Nh6 Bf1 Ng8 d4 Kd7 f4 Kc6 Kf2 h5 g4 e5 a4 h3 f5 e3+ Ke2 b2 a5 b1B a6 c3 d5+ Kb5 a7 c5 f6 e4 f7 c4 g5 h4 g6 h2 d6 h3 d7 c2 g7 Na6 Ra2 Rh7 Ra4 Nh6 g8Q Rg7 Bg2 Nc5 Kf1 e2+ Kf2 e1R Bf1 Nf5 Qd6 Rd1 Qd2 Nd3+ Ke2 Ng3+ Ke3 Bd6 f8R Bb8 Qe6 Nb2 Kf2 Qb6+ Qd4 Qd6 d8B Bd7 Bf6 Be8 Nf3 Bh5 Qd2 Rc7 Rg1 h1R Bd3 h2 Rf1 Rg1 Bh4 Rg2+ Ke3 Rg1 Qg2 Rd2 Ng5 Rd1 Be2 Rd3+ Kf2 Rb3 Ra1 Nf5 Rc8 Rd7 Rd8 Bc7 Nf3 Rc8 a8R Bb8 Bd2 Rcc7 Qh1 Rgg7 Ne1 Ng3 Qg2 h1Q Re8 Re3 R1a6 Qd3 Rd8 Qh3 Qe8 Ba2 Kg1 Bb3 Rh6 Qd6 Rf8 Rc3 Rhf6 e3 Bf3 e2 Bd5 Ba2 Bf7 Ra3 Bg8 c3 Nf3 Be6 Bf7 Bf5 Ng5 Bh7 Ba2 Rb3 Bb1
1K1nR3/4N1n1/2qBp2Q/q1B1Q1p1/Q1qb4/1pBB2n1/pR1nP3/1r2r1kb b - - 0 1 illegal: No proof kernel
2b2q2/1pN1b3/R2p1BnQ/R4rrR/1K1kq1R1/3p1p2/1P1n2bb/4NNnQ b - - 0 1 illegal: No proof kernel
1qrr2QN/6p1/1brp1brk/8/4pQ1b/B4Q2/1NnpR1P1/NK1Rn1Qb b - - 0 1 illegal: Other
1Rq2nQR/2NR4/pQ2q3/1rr2b2/RN2n2p/p3N1p1/Pn1p1bk1/1K2B1r1 b - - 0 1 illegal: No proof kernel
r2q1n1r/1nNpb2q/np3pN1/6pQ/kPp5/4Q2R/Q1R4Q/qB1bRK2 b - - 0 1 illegal: No proof kernel
R1r5/N1B1pR1k/1pnqQ3/r2rbQQB/2K2bpp/1Qp4q/bP6/2B3n1 b - - 0 1 illegal: No possible last move
2RR1n2/4B1p1/B2b4/3K4/bp2rQ2/1pR1B1PR/2bpnp1r/Nbk1Q1qb b - - 0 1 illegal: No possible last move
2N2B2/1rnN1Rq1/3NQp1r/r1Qb2b1/1N4K1/pB2ppn1/P6p/r1k1n2Q b - - 0 1 legal: proof: c4 d5 f4 g5 h4 gxh4 e4 b5 b4 bxc4 e5 e6 f5 exf5 Na3 f4 Rb1 Be7 Rb3 Bc5 Re3 Bf8 Re4 dxe4 Kf2 Kd7 d4 Kc6 g4 Kd5 g5 c5 e6 h5 b5 a5 b6 f3 g6 f6 g7 h3 Kg3 a4 b7 e3 e7 Ke4 e8N h2 d5 c3 d6 c2 d7 h4+ Kh3 c4 Qd2 c3 Kg4 h3 Nb5 a3 Kg3 Nh6 g8Q Rh7 Qd1 Qe7 d8Q Be6 Q8d7 Ra5 Qg5 Nf5+ Kg4 Qg7 Qf7 Na6 b8N Nc7 Bd2 c1R Nd7 c2 Bb4 Bd5 Ne2 Ra1 Ned4 c1N Na7 Ng3 Bc4 Nd3 Nc2 Ne1 Bb3 Bd6 Nc8 Bf4 Qc1 Kd3 Qe6 Rh6 Rg1 h1R Bf8 h2 Ned6 Kc3 Qd1 Kb2 Nb4 Rb1 Qd4+ Kc1 Qc5+ Bc4 Qg6 Bg5 Rg2 Rf1 Qd3 Rg1 Qf1 Ra1 Rd2 Rg2 Rd4 Rb2 Qh1 Rbb1 Re4 Rb2 Qe8 Rbb1 Re7 Rb2 Rf7 Rbb1 Bc2 Bd5 Qe6 Rb3 Na6 Rb6 Nb4 Rb7 Bb3+
r5k1/n1Q2nB1/1R3p2/1p3KR1/2p1QP2/q1p2RrB/bQ1rNrp1/2Q1bn2 b - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 d5 h5 Nd2 hxg4 Ndf3 e5 Nd4 exd4 Kd2 g5 f4 c5 a4 b5 e4 c3+ Kd3 g3 h4 b3 d6 g2 e5 b2 Ke4 b1N h5 g4 h6 g3 h7 Nc6 e6 Na7 a5 Nd2+ Kf5 Qe7 Ne2 g1R Bh3 Nf1 a6 g2 Bb2 Nh6+ Ke5 Bb7 Ra3 Bd5 Qc1 Rg8 h8Q Ba2 Ba1 Rg3 d7+ Kd8 Rh2 Qd6+ Ke4 Ke7 d8R Bg7 Rb8 Bf6 Rb6 Bh4 Qf6+ Kf8 e7+ Kg8 e8Q+ Qf8 Qec6 Qd6 Bb2 Rh1 Qe5 f6 Qc7 Nf7 Kf5 Qf8 Rb3 Qe7 Ba3 Qd6 Qe4 Qe7 Qeb1 Qe3 Qbb2 c4 Bf8 d3 Bg7 d2 Rb4 d1R Ra4 Bb3 Ra1 Rd2 Ra2 Qe7 Ra1 Nc6 a7 Qa3 Rb1 Ba2 Ra1 Rad8 a8Q Na7 Qe4 Ra8 Bg4 Bg5 Rh5 Bh4 Rg5 Rhh3 Rb1 Rf3 Ra1 Rhg3 Bh3 Rf2 Qcc2 Nh8 Rd1 Nf7 Qcc1 Rc2 Rd7 Rd2 Rd3 Rg4 Nd4 Rfe2 Qee5 Be1 Rf3 Rg3 Qe4 Rf2 Ne2
n2bK3/Q2p1N2/1pN2p2/2NnB1Qp/1B1rNPk1/rBqb4/3n2p1/3Rr2n b - - 0 1 illegal: No proof kernel
Rr2n1Q1/br1pN1k1/R1p1rp1p/2q2n1P/B1p3NR/3bQ3/2bp3Q/K4R2 b - - 0 1 illegal: No possible last move
Qn4Bb/2N3pb/B1k1pNPr/qn1p1Rr1/p5bB/4B3/K1p2p2/1Q1r1N2 b - - 0 1 illegal: Other
Q6k/6pb/pNp1pqP1/8/1Q1R1rq1/KNb2pbQ/3n1pn1/NQr1R2B b - - 0 1 illegal: No proof kernel
1n1R4/2pR1Q2/n3b1r1/pRr1p1p1/rp2RQPb/6B1/q1qN2pK/2B1k2B b - - 0 1 illegal: No possible last move
5Q2/rNRB1B2/q3p2K/p2n1NN1/P1q3p1/bp1ppbr1/n4k2/Br1Q1N2 b - - 0 1 illegal: No proof kernel
3Q2RB/p2n2pk/n1N1p1R1/2p5/1b2rQBp/2R3Qn/1KP4p/1n2qrRb b - - 0 1 illegal: No proof kernel
1R2q1Bn/r1r2B1K/1rN2q1p/5R2/1n4r1/BBP1Bb1k/bN5q/b4N2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 h4 g5 b4 gxh4 c3 a5 bxa5 d3 Qc2 dxc2 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 g4 d5+ Ke5 f5 e4 h6 b6 d4 b7 h3 a6 Kh4 g5 f3 g6 h2 g7 d3 a7 f4 Bb2 c1R Nh3 f2 Ng5 d2 Ba3 d1B Ba6 f1Q Nd2 f3 Rb1 f2 Ne6 Nc6+ Kf5 Kh3 Kg6 Rh7 b8B Nb4 e5 Bf3 Nd4 Be6 Nc6 Ba2 Bc4 Qe8+ Bf7 Re1 e6 Re4 e7 Qg2+ Bg3 f1Q Rb2 Qff2 Rf1 h1R Rb3 Qh2 Bf4 Rb8 a8N Rb6 Be3 Qh4 Rf2 Ra1 Nf1 Rf4 Rg2 Qf2 Rg5 Rg4 Rb1 Qd7 e8B Ne7+ Kf6 Qc8 g8B Ng6 Bb3 Nh8 Rf5 Rc7 Bef7 Qe8 Rb2 Bd6 Rb1 Bf4 Rb2 Bg5+ Kg7 Be7+ Kh7 Qh4 Rd2 Qf6 Rd8 Bd6 Rb8 Bf4 Bc5 Bc1 Bg1 Bb2 Be3 Ra6 Nb6 Rb1 Bd2 Ba1 Na4 Raa7 Bf4 Re1 Bd2 Re6 Be3 Rd6 Nb2 Re6 Nd8 Rb6 Nc6
6bQ/8/1q6/2N1Nr1b/3rRn1k/n1KNq2n/bN1r2P1/RbN1BrrN b - - 0 1 legal: proof: d4 e5 f4 exf4 h4 g5 b4 c5 b5 cxd4 b6 g4 e3 Be7 Be2 Bg5 Bf3 gxf3 hxg5 axb6 Rh4 b5 Rh1 b4 Kd2 Ke7 c4 b5 a4 h5 e4 f5 a5 d5 a6 b3 a7 h4 c5 b4 g6 Kf6 g7 Kg5 c6 d3 e5 d4 c7 b2 e6 b3 e7 f2 e8N f1Q Nc3 b1B Ra2 f3 Nce2 f2 Nd6 b2 Ra1 f4 Rh2 f3 Qc2 h3 Qc4 Rh5 Ne8 Ne7 g8N Nd5 Ne7 Kh4 Qc6 Nd7 Ra3 Ne5 Nd6 Nf4 Ng8 Be6 c8N Bba2 Nf7 b1B Qb6 Rf5 Qb2 Qb6 Nce7 Rd8 a8N Rd7 Rh1 h2 Nh3 Qg1 Ra4 f1R Nf6 f2 Ned5 Re1 Ne4 f1R Nb4 Rd5 Nh6 Bg8 Nf7 Qf2 Rg1 h1N Nc5 Qf3 Qa1 Nf2 Bb2 Rd8 Nc1 Qg3 Rh1 Rg1 Bc3 Ref1 Nhg5+ N2h3 Nge4 Qg5 Nf2 Qgh6 Nc7 Qg5 Ncd5 Qg3 Ne3 Qf3 Ned1 Rd6 N1b3 Nc4+ Kc1 Rd7 Ne5 Na3 Kb2 Qe3 Be1 d2 Nc1 d3 Kc3 Rd4 Nb2 d1B N5b3 d2+ N4d3 Bh5 Nc5 d1R Rb4 Bae6 Ra4 Rd5 Rb4 Rd2 Re4 Nc2 Qa8 Rd4 Qb8 Na3 Qe8 Bgf7 Qh8 Bg8 Na6 Bea2 Nc5 Bc2 Ne2 Qg3 Nfg4 Rf3 Bf2 Ra1 Rb1 Rd1 Rc1 Rg1 Be1 Rff1 Nf2 Qe3 Rd1 Rb1 Nba4 Rbb4 Ra1 Rb2 Nc1 Bcb1 Nh1+ Rbf2 Ng3 Re2 Nb2 Rd2 Nh1+
1k4b1/1n3Q2/1KRn1BB1/1n1br2n/r1B2Pq1/7n/B2NBN1n/Br1n3n b - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 a5 e3 axb4 h5 d5 h6 d3 Ba3 d4 Bb2 d2+ Ke2 gxh6 Ba3 h5 Bc1 h4 a4 f5 Ra3 Bg7 Rc3 Nc6 Rc4 d3+ Kf3 Ba1 Re4 Bd4 exd4 fxe4+ Ke3 Nb8 c4 Kd7 g4 Kc7 f4 h5 g5 e5 d5 b5 a5 h3 c5 h4 a6 h2 a7 h3 c6 b3 g6 b4 g7 b2 Qb3 d1N+ Kd2 e3+ Ke1 e4 Bg2 e2 Kd2 e1R Ne2 Na6 Ng3 Qh4 Bf3 Nc5 Ne2 Nf2 Ke3 d2 Kd4 d1N Qa3 b3 Qb4 e3 Na3 b1N Qa4 b2 Nc3 e2 Qb3 Nb7 Nc4 Nf6 g8B Qg4 Nd2 Nh5 Nce4 Be6 d6+ Kc8 c7 Nbc3 Qc4 b1N Bb2 Na3 Ba1 Rb8 Qa2 Nc4 a8B Bf7 Bh7 Bg8 Bg6 Rh6 Rg1 h1B Qa7 h2 Rg2 Nh3 Nf2 Nba5 Kc5 Rb1 Bad5 Nb7+ Kc6 Nb5 Rg1 Ne5+ Kb6 Nf7 Bc4 Bg2 Bfd5 h1N Ba2 Bf3 Bdc4 Bd5 Rg3 Rh7 Rc3 Rg7 Bc2 Rg5 Bg6 Re5 Rc1 Rg1 Rc2 e1N Be2 Qf5 Rc6 Qg4 Bec4 Nf3 Be2 Kd7 c8B+ Kd8 d7 Nfd6 Bec4 Nh2 Be2 Rg3 Bac4 Ra3 Ba2 Nc5 Ba6 Ra4 Bec4 Ncb7 Be2 Ke7 d8B+ Kd7 Bf6 Nc7+ Bab5 Kc8 Qa6 Kb8 Qa5 Nb2 Bbc4 Ncb5 Qc3 Nd1 Qd4 Bf3 Qd5 Be4 Qe6 Bd5 Qf7
n4N1q/1Rb1nqB1/r1b2P2/1N1B4/1b1K2b1/Rqn2k1n/4R3/1qnRRB2 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 b4 axb4 f5 c5 Qe2 cxd4 g5 b5 Qf3 Ra6 Qg4 Rf6 gxf6 hxg4 Kf2 Kf7 c4 e5 h4 d5 a4 g5 c5 g3+ Ke2 d3+ Ke3 b3 a5 d4+ Kd2 g2 c6 e3+ Kd1 e4 c7 b4 h5 g4 h6 b2 h7 g3 a6 e2+ Kd2 e1B+ Kd1 e3 a7 d2 Kc2 d1B+ Kd3 b3 a8B e2 Ra6 Bb7 c8R Bc6 Rh2 Ne7 Bg5 Ba5 Na3 b1Q+ Kc4 e1Q Be2 b2 Bf3 d3 Be3 d2 Bg5 Qf2 Be3 Bc7 Ne2 g1N Ra5 g2 Nb5 Na6 Bh6 Nh3 Rb8 g1N Ned4 Ne2 Rb7 Nc1 Bg2 Bg4 Bf1 d1N Ne6 Nc3 Ra3 Qbc2 Rh1 b1Q Bg7 Rg8 h8R Qb8 Bh6 Rg6 Bg7 Qf3 Kd4 Qcb3 Rh2 Qe8 Re2 Qf2+ Re3 Qh4 Rg8 Qh8 Rd3 Nb8 Rd2 Nd7 Re2 Nb6 Re1 Ned5 Rd1 Bb4 Re1 Qe7 Re8 Rh6 Nf8 Qe6 Rba7 Ne7 Bb7 Na8 Rd1 Bd7 Bd5 Bc6 Rb7 Rg6 Nd7 Nc8 Re7+ Kg8 f7+ Kh7 f8R Qf7 Rb8 Bb7 Re3 Ra6 f6 Kg6 Ree1 Kf5 Rfe8 Kf4 R8e5 Bc6 Rb7 Ne7 Nf8 Kg3 R5e4 Kf3 R4e2+
n1kRb3/1r4n1/Nq2N1Rn/r1N5/BN4R1/nnP2pK1/r3b2B/N4qb1 b - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 h4 f5 e4 d5 b4 Kd7 h5 a5 c3 g5 b6 d3 b7 a4 b5 d4 e5 d2+ Ke2 d1N Kf3 g4+ Kf4 d3 b6 a3 h6 a2 h7 d2 Ne2 g1R Bg2 Bc5 Rh4 Nb2 Rh6 d1B Bh3 g2 Rg6 g3 Rg5 Na6 b8R Nh6 b7 Qb6 Na3 Nc7 Nc2 Ra5 Nb4 Nc4 Nd4 Be2 Nb3 Na3 Rg6 Na8 e6+ Kc7 e7 Bd7 Bb2 Rd8 h8N Qc6 Nd3 Rb1 Nf7 g1Q Bc1 g2 Nfe5 Rb2 Bd2 Qb6 Nb4 Rc2 Rc1 a1N Ned3 Ra2 Be3 Rg8 Rd8 Rg7 b8N Qh1 Re1 g1N e8N+ Kb7 Bd4 Nf3 Bg1 Nd4 Nc7 Be8 Bh2 Qg2 Rg1 Qf1+ Kg3 f4+ Kh4 f3 N8a6 Rh7 Bd7 Ne6 R1g4 Bg1 Kg3 Re7 Bb5 Ng7 Ba4 Rd7 Ne6 Rf7 Nbd4 Nb3 Ndc2 Rd7 Na1 Rf7 Rd6 Kc8 Ndc5 Rb7 Rd8+
4bB1q/Npr2n1k/3R1q2/N3N1bN/4r1qr/2q2RP1/1n1NBK2/qb2R3 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Qb3 exf4 Qa3 bxa3 e4 h5 d4 c5 e5 f5 a5 Kf7 a6 Kg7 d6 f3 g3 f4 d5 c4 e6 c3 d7 f2+ Ke2 a2 d6 h3 e7 c2 e8R f3+ Ke3 h2 a7 h4 Ne2 h3 Nbc3 Nc6 Bb2 c1Q+ Ke4 Nh6 Nb5+ Ne5 Re6 Qf6 d8N Nhf7 d7 Nc4 Bg2 f1B Bd4 Nb2 Rg1 h1Q Nc6 h2 d8N f2 Bc5 Bd7 Na5 Qcc3 Nf4 Be8 Re1 Rc8 a8N a1Q Na7 Bd3+ Ke3 f1R Ndc6 Rc7 Ne5 Bb1+ Ke2 Rf3 Rgf1 Kg8 Nb6 Bh6 Nbc4 Bg5 Rc1 Qg1 Nd2 h1Q Bf8 Qgd4 Rce1 Qhh6 Rf2 Re3+ Kf1 Qd7 Bf3 Re4 Rd6 Qg4 Be2 Qhg7 Kg1 Rh4 Rf3 Qh8 Nh5 Kh7 Kf2
b1Br3N/2rn1qqr/K1nPN1N1/8/1rk5/1r2p1N1/2b1Rr1B/1R1q2BN b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 fxe4 g3 axb4 c5 e6 Qg4 hxg4 c6 Bd6 f5 Bf4 gxf4 dxc6 Ba6 c5 Bf1 c4 Ke2 Kd7 h4 Kc6 d4 Kd5 a4 c5 f6 g5 h5 b5 f5 g3 h6 g4 a5 e3 f7 c3 Kd3 g2 f8B c2 a6 e5 a7 g3 h7 e2 f6 e1R f7 c4+ Kd2 c3+ Kd3 b3 Rh4 b4 Bc5 b2 f8N b3 Ng6 Qc7 Bb6 Re4 Nd2 b1R Bb2 c1Q Be2 c2 Bh5 Qf7 Nc4 Ne7 Ra2 Nd7 Nh3 g1R Nf2 g2 Nd2 Qd1 Bg4 c1R Rh1 Rc7 Bc3 Rf8 h8N b2 Bc5 Rb8 a8N Bb7 B3b4 Rbe8 Ba7 Rec8 Bd6 Nc6 Kc3 Rb8 Nf1 Rbd8 Ng3 Rge1 Rf1 g1Q Nfh1 R1e2 Re1 Rh2 Ra1 Rf4 Re2 Rh7 Bh3 e4 Bf5 Ncb8+ Kb4 Nc6+ Kb5 Rf2 Bac5 Rb8 Bb6 Rfd8 Ba7 Nce5 Ka5 Kc4 d5 Bc6 Ka6 Rb3 Bdc5 Rb4 d6 Bd5 Bd4 Nc6 Be5 Qg2 Nh5 Qg5 Bh2 Qh6 Bd4 Qhg7 N5g3 Rb3 Bg1 e3 Be5 Rc1 Be6 b1B Bf4 Be4 Rb1 Bc2 Bh3 Rcb7 Nc7 R7b4 Ne6 Ne7 Bg2 Ba8 Bb7 Nc6 Bc8 Rb7 Ra1 Rc7 Be5 Rcb1 Bf4 R1b2 Rb1 Rb4 Nh5 R2b3 Bfh2 Re8 N5g3 Rg8 Nf5 Rd8 Nfg3
1Rn1BN1K/b1qR1p1b/2b4R/nB2B3/1n2B3/1nr1P1Bq/1N1kn3/3bb3 b - - 0 1 legal: proof: d4 b5 h4 a5 g4 e5 f4 Ra6 h5 exf4 b4 axb4 g5 c5 Qd3 Rh6 gxh6 cxd4 Qg6 hxg6 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 c4 Ke4 a4 f3 h7 d5+ Kg3 g5 a5 d3 c5 b3 a6 b2 c6 g4 a7 g5 a8B b4 h6 d2 c7 Ke3 Ra7 b3 Ra6 d4 Be4 d3 Ra1 f2 Ba8 Bb7 c8B Nc6 Nh3 Qc7+ Nf4 Na5 Bd7 Ne7 Nc3 b1N Ba3 d1B Bb4 d2 Na2 b2 Rh3 Nc8 Rh1 Bc6 Ba3 Bb4 Be8 Bc2 Bb7 d1B Nc1 Be1 Nd3 Nd2 Bd6 b1N Nb2 Na3 Ne6 Ndb3 Nf8 Kd2 Ba8 Rg8 h8B Bh7 Bhe5 Nc2 Ra2 Nb4 Ra3 Bf5 h7 Rg7 h8R Bh7 Rh6 Rg8 Kh2 g3+ Kh3 g2 Kg4 g1N Kh5 g4 Bg3 Rg6 Bde5 Rf6 Ra1 Rf3 Kg5 Rc3 Kf6 Bce4 Kg7 Bc6 Bg2 f1Q Be4 Qf5 Bb7 Qf1 Ba6 Qg2 Bb5 Qh3 Bh2 g3 e3 g2 Bhg3 Ne2 Rg8 g1B Kh8 Bh2 Ra2 Nc4 Ra7 Nca5 Bd4 Qd8 Rd7 Qc7 Bh4 Bd6 Bg3 Bc5 Bde5+ Qd6 Rb7 Ba7 Rb8 Qe7 Rgg6 Qc7 Rd6+ Kc1 Rd3 Kc2 Rd7+ Kc1 Bd6 Kd2 Bde5+
1b1nqRN1/3k1q2/K1NB4/N1R2r2/3Q1b1P/p2N2rr/1q1qrN2/1b1q1N2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 Ra3 b5 Ra1 bxa4 Nh3 h5 Ra2 f5 Bg2 f3 Ng1 f4 Bh3 Nc6 Ra3 Nce7 Ra1 Nf5 gxf5 Rh7 Bg4 hxg4 Ra2 Rh3 Ra1 Rh8 Kd2 g5 Kd3 a5 Kc4 d5+ Kb5 g3 b4 f2 c4 f1R e4 f3 h3 d3 f6 a3 f7+ Kd7 e5 g4 c5 a2 Nc3 d4 Nb1 g2 Bf4 g3 Nd2 f2 Rc1 a1Q h4 a4 Rc2 Bh6 Nh3 g1B Rh2 Re1 Nf1 d2 Rc3 g2 f8N+ Ke8 e6 d3 e7 Bf5 c6 Qb2 c7 Re2 Ne6 Kd7 e8N Ne7 c8N Rf8 Bd6 Bf4 Rh1 Nc6 Rc5 Bgh2 Na7 g1R Ka6 Rg3 b5 a3 b6 Rb8 Qa4 d1Q b7 d2 Qd4 Bb1 Rg1 Rf5 Rg2 Ne5 Nc6 Nf7 Na5 Qdc1 Rg1 d1Q Rg2 Qcd2 Rg1 Rc3 Rg8 Rg3 Rf8 Qc8 Qd3 Nd8 Qd4 Bg5 Nef4 Bh6 Nd3 Bf4 Ne3 f1Q Nhf2 Rh3 Ne4 Qf3 Nf1 Qh5 Nef2 Qf7 Nc7 Rg3 Nd5 Rh3 Ne7 Qc6+ Ka7 Qe4 Ng8 Qee8 Ka6 Rc8 Re5 Rc3 Rc5 Rb3 Nc1 Rbe3 Ncd3 Reg3 b8N+ Ke6 Rc4 Bh6 Nbc6 Rgf3 Qh8 Kd7 Bb4 Bb8 Bd6 Rfg3 Rc5 Bf4 Qd4
1R2N3/1PKRnb2/1rNrq3/1r1r4/1q1B3p/qb2qk1N/2N1N3/R1b1q2B b - - 0 1 illegal: No possible last move
b3rNRN/N1K1Nr2/1pb1Q2k/4N2n/1r2Bn2/3n1n2/2Nb1PR1/2n1rb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 d4 fxe4 d5 h6 Bg5 hxg5 d6 cxd6 Nh3 d5 Ng1 d4 Na3 Qa5 Nb1 Qf5 gxf5 Ra6 Qd3 Ra4 Qd1 Ra8 Kd2 Kf7 a4 e5 c4 d5 h4 b3 f6 Kg6 h5+ Kh6 f7 g4 c5 g5 c6 b2 c7 e3+ Kd3 b6 a5 e2 a6 e1R a7 e4+ Kc2 g3 Kb3 g2 Ka4 d3 Kb5 d4 Rh3 e3 Qa4 d2 Ra3 d1B Rf3 d3 Qh4 g4 Ra6 e2 Re3 d2 Rc3 g3 Nh3 g1N Raa3 g2 Qa4 Nf6 Nf4 Nf3 Ra2 g1N Bg2 Nc6 Na3 b1R+ Qb3 Bd7 c8N Bb4 f8N Rh7 Qe6 Rf7 Nc2 Nh3 Ne7 Re8 N4g6 Nf4 a8N Nce5+ Rc6 Rb2 Nc7 Ned3 Ra8 Nc1 Ne5 Ba5+ Ka6 Rb4 Rc5 Bb5+ Kb7 Ba4 Rd8 Bc6+ Kc8 Ba8 Nb5 Bc6 Na7 Ba8 Na1 Ba4 Kc7 d1B Nc2 B4c6 Rb8 Nh2 Be4 Nf3 Ne3 Bb3 Nc2 Bc4 Rc8 Rb1 Rb5 Bd2 Rd5 Rb4 Rb5 Kg5 h6 N6h5 h7 Bd3 h8N Bc4 Nfg6 Kh6 Rd8 Rf1 Ra5 e1N Rc8 Ned3 Nf8+ Ng6 Ra3 Re1 Rb3 Nc5 Rd8 Bf1 Re3 N5d3 Rc8 Nd4 Rg3 Nf3 Rg2 Rd8 Nh7 Rdf8 Qd7 Ngf4 Rb8 Rd8 Qf5 Rd5 Rbg8 Rd8 Nf8 Re8 Qe6+
1B3B2/q2b2q1/kq1rQq2/N1BN2Bp/P1Bn3n/rpb2r2/4q2R/1BK5 b - - 0 1 illegal: No possible last move, all moves rejected
1N2b3/2R3R1/1PNBnN1k/3bqBp1/1K2nqr1/1b1b3p/5N1N/Rr1n2b1 b - - 0 1 legal: proof: d4 g5 g4 b5 h4 c5 a4 cxd4 f4 Qc7 f5 Qd8 f6 exf6 axb5 Ba3 Qd2 gxh4 g5 Bd6 g6 Bf8 Qg5 fxg5 Kd2 f5 c4 d5 b4 a5 e4 h5 g7 Kf7 c5 Kg6 b6 h3 b5 h4 c6 d3 Kc3 f4 c7 a4 e5 d4+ Kc4 d2 b7 d1B b6 h2 e6 d3 e7 a3 e8N d2 Ne2 h3 Bg2 a2 Kb5 f3 Na3 f2 Nd6 f1B Rg1 h1B Bb2 Na6 b8N Nc5 Nc2 Qf6 Ne1 Rh4 Bf3 Bb3 Ne4 d1N Be5 Rg4 Kb4 Qf4 Bd6 Nf6 g8N Ne6 Nd4 Bd3 Nf2 Bd7 c8R Ne4 Rf1 Be8 Nf6 Kh6 Rc7 Ra5 Ndc6 Rb5+ Ka3 Bg7 Be2 Bg2 Nf3 Rb4 Nh2 Bf8 Be5 Bc5 Bd6 Be3 Nh1 Bg1 Nf2 Bbc2 Bf3 Rb1 Be2 Bb3 Kb4 Bdc4 Rg7 Bd5 Re1 Bf1 Ba6 Bd3 Bc8 Rb2 Rc1 a1Q Bd7 Rb1 Rc2 Nf8 Bf5 Ne6 Rf1 Nb2 Rfc1 Nd1 Ra2 Qae5 Raa7 Rb2 Rca1 Rb1 Rac7
2BR4/k3np1R/1R2n3/7N/2p1b1P1/q2r1r1n/b1nn1NKR/1q1bR1BB b - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 g5 g3 gxf4 b5 e5 Qb3 e4 Qf3 exf3 b6 axb6 Kf2 b5 Ke1 Be7 g4 Bh4+ Kd1 Bg3 hxg3 b4 Ke1 Qd4 Rh2 Qd7 Rh1 Qd8 Kf2 Kd7 d4 Kc6 e4 Kb6 a4 h5 d5 c5 e5 h4 a5+ Ka7 d6 b5 a6 c3 d7 b3 e6 c4 e7 b2 e8B b4 g5 h3 g6 b3 g7 c2 Ra5 h2 Nh3 Qb6+ Be3 c1Q d8R Bg4 Bg2 Nc6 Re5 Nge7 g8R Nd4 Rgg5 Ne6 Re1 h1N+ Kf1 f2 Rg7 Bd1 Rdd5 Rd8 Ra5 Rd3 Nd2 b1B g4 b2 Bd7 Ba2 Rh5 b1B Bc8 Qa3 Ne4 Rh6 Rhb5 Rf6 Ng3 Rf5 Ba8 Rf6 Kg2 f1N Bf3 Nd2 Bg1 Nf2 Rh7 Bbc2 Rbh5 Qb1 Rab5 Rf5 Rb6 Rf6 Ng5 Nh3 N5e4 Rf5 Nf2 Rf6 Kh1 Rf5 Bg2 f3 Rh4 Rf4 Nh5 Rf6 Kh2 Rf5 Bh1 Rf6 Ne4 f2 Kg2 f1N Nf2 Ne3+ Kh2 Bcb3 Kg3 Nc2+ Kg2 Nhg5 Rh2 Rff3 Rd6 Nh3 Rd8 Kb6 a7 Ba4 a8R Bc6 Rb8+ Ka7 Rb5 Be4 Rb6
n1Brqb1B/1q4NR/3p3n/b2Pq2B/1R1pk3/R1B3n1/2brBK1N/n7 b - - 0 1 legal: proof: h4 e5 f4 exf4 e4 fxe3 d4 b5 a4 g5 axb5 gxh4 d5 c5 Qd4 cxd4 g4 Ke7 b4 Kf6 c4 Ke5 c5 h5 g5 f5 g6 a5 b6 e2 c6 a4 c7 a3 g7 f4 b5 a2 b7 d6 b6 f3 Kf2 h3 Bg2 e1B+ Kf1 h2 Na3 f2 Nf3+ Ke4 Nc4 h4 Bg5 h3 Ne3 Nd7 b8B Nh6 g8B Ba5 b7 Qe8 Bf6 Nb6 Bf7 Bf5 c8B Bh7 Ke2 f1N Bh5 Ng3+ Kf2 Ra6 Bf1 Na8 Bg7 Rc6 Bc7 Rc2+ Be2 Rd2 b8R Qe5 Rac1 a1N Rc3 Bf5 Rb7 Qe8 Rhb1 h1Q R1b4 h2 Ra3 Qb1 Ra7 h1Q Nh2 Rg8 Bh8 Bh7 Nf5 Qhe1+ Kg2 Qe5 Ng7 Bf5 Rba4 Qb7 Rb4 Qd1 Bb6 Qa4 Kf2 Qae8 Bc7 Bd7 Bd8 Ba4 Bg5 Rb2 Bc1 Rd2 Bb2 Bc2 Bc3 Qbb5 Re7 Qb7 Ne6 Rg7 Rc7 Rd7 Ng7 Rd8 Nf5 Bb6 Rh7 Ba5 Ng7
2R2B2/2B3p1/4k1nb/brr1rb2/n3p1rP/B1Nq1R2/2N1RK2/rr1R1R2 b - - 0 1 legal: proof: e4 e5 a4 c5 g4 h5 d4 exd4 e5 hxg4 Ra2 f5 Qe2 b5 Qe4 fxe4 axb5 c4 Bd3 cxd3 Ra4 Nc6 Ra1 Nb8 b4 Kf7 c4 a5 f4 d5 h4 d2+ Ke2 d1R c5 d3+ Ke3 a4 f5 g3 f6 a3 b6 d4+ Kf4 g2 Kg3 a2 b7 d2 b5 d3 c6 Rh5 c7 Nd7 b8B Bb4 b6 Ba5 b7 Nb6 Kf2 Na4 Nc3 Ne7 Nge2 g1B+ Kg2 Ke6 f7 Ng6 f8B Be3 Rf1 Bh6 Bca3 Rb1 Kf2 Rb5 Rad1 Bd7 c8R a1R Bc7 Rc1 Nd5 Rcc5 b8R Rg5 Ne3 Rg4 Nc2 Ra6 Rc1 d1R Nc3 d2 Rb7 Re1 Rd1 Rd6 Rbb8 Rdd5 Rb6+ Kf7 Rc6 Bf5 e6+ Kf6 Ra6 Re5 e7+ Qd6 Raa8 Qd3 e8R Kf7 Re7+ Kf6 Rf7+ Ke6 Ra1 d1R Rab8 Rbb1 Rb2 Rdc1 Rba2 Rb8 Rb2 Rb1 Rba2 R1b5 Rd1 Rb1 Nb4 Rb6 Re2 Rbb5 Nc2 Ra1 Rdd2 Reb1 Rdd1 Qc4 Rfd7 Qb3 R7d3 Qd5 Rh3 Qd3 Rf3
2n3R1/3rr1NB/B2Bn2b/nn1rR1q1/4Br2/P1p3r1/pk3NN1/b4KB1 b - - 0 1 illegal: No proof kernel
4qN2/1rR2bR1/npr1R3/P3NrB1/Kn2R3/1Bp1bB2/R2n1b2/2n1kb2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Qc2 exf6 Qb2 f5 Qa3 f4 Qg3 fxg3 Kd1 Kd7 Kc2 Kd6 Kb3 Ke5 h4 Kf4 e4 g5 a4 c5 e5 f5 e6 b6 a5 c4+ Ka4 g4 e7 c3 e8B b3 d6 b2 d7 Ra7 h5 Rh6 Bb5 Bc5 d3+ Be3 d4 Rb7 d5 Na6 d6 Nf6 Na3 b1N Nc4 Nd5 Ne2+ Kf3 Nf4 Kf2 Re1 g1N Ne6 f4 Ra2+ Ne2 Ne5 g2 Bc4 g1B Nf8 f3 Bb3 g3 Bd2 Rf6 h6 g2 h7 Ndb4 h8R Rf5 Rg8 Nc1 Bh5 Qe8 Re2+ Kf1 Rg7 Bgf2 Bg4 g1R Bh5 Bh6 Re4 Rg6 Bg5 Nd2 Bg4 Be1 Bh5 f2 Bf3 Re6 Ka3 Ref6 d8R Be6 d7 Bf7 Rc8 Rg6 d8R Rc6 Bh4 Be3 Ka4 Bg6 Rd6 Bf7 Bh1 Ke2 Bg5 f1B Re6 Bf2 Rc7 Ke1 Bf3
3bNn1q/5kq1/Nb1B1P1N/q2nq2N/4nrBK/b2p2R1/1Nb2p2/5RR1 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Nb1 f5 Be3 b5 Bc1 f4 Qd3 Ra6 Qf5 Rf6 Qg5 Rf5 gxf5 Bd6 Qg2 Bf8 Qg4 hxg4 Kf2 d5 h4 g5 e4 d3 c4 g3+ Ke1 g2 Kf2 b3 a4 b4 e5 d4 f6 b2 e6 d2 e7 d1N+ Ke1 b3 c5 g4 c6 g3 h5 f2+ Ke2 Kf7 Kf3 Nc3 e8N Bf5 a5 Nd7 c7 Bc2 Kg4 d3 c8N f3 a6 Qa5 a7 Ne7 a8N Ne4 h6 Nd5 h7 Ba3 Ne7 Nf8 Be2 f1Q Nd2 b1Q Kh4 b2 Nf5 Qe1 Nh3 g1B Nc4 Bb6 Rg1 Bd8 Bf4 g2+ Bg3 Qec3 Bd6 Qe5 Nac7 Rg8 Rf1 g1B h8R Bb6 Na6 f2 Nf4 Rg5 Nh5 Rg4+ Kh3 Qd1 Rg8 b1Q Nb2 Rf4 Bg4 Qf3+ Kh4 Qg2 Rg1 Qbe1 Rg6 Q1c3 Raf1 Qc8 Nd4 Qcf5 Rg5 Qh7 Rg8 Qg7 Nf5 Qf3 Rg3 Qe3 Rgg1 Qec5 Rg3 Qc8 Nh6+ Kg6 Nb8 Nd7 Re3 Be7 Nc7 Qe8 Nba6 Bd8 Rh3 Qf8 Rhh1 Qfe8 Rhg1 Qf8 Nf5 Kf7 Ne8 Qh8 Rg5 Rf3 Bh3 Qfg7 R5g3 Rf4+ Bg4 Nf8 Nh6+
2RbNB2/q2N1rBK/1p5n/4pN1r/2qq1Nn1/4P1np/1R1N4/3rR1bk b - - 0 1 legal: proof: d4 a5 b4 axb4 f3 c5 Bh6 cxd4 Bc1 b6 f4 e5 f5 Bb7 Ba3 Bd5 Bc1 Be6 fxe6 Qc8 Bh6 Qc7 Bc1 Qd8 h4 g5 h5 Qf6 Qd2 Qe7 Qf4 Qd8 Qh4 gxh4 g4 Bh6 g5 Ra3 g6 Bf8 g7 Bd6 Bg2 Bf8 Be4 Ra8 Bg6 hxg6 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Kd5 a4 f4 e7 b3 e8N f3 c3 b2 e3 f2 h6 f1N a5 h3 a6 g5 a7 g4 h7 g3 Nd2 b1Q+ Ke2 d3+ Kf3 g2 Kg4 Ng3 Nb3 Ke4 c4 d5 c5 d2 c6 d1R c7 d4 c8R d3 Rh2 d2 Nd4 Qb3 Ba3 Qe7 Nf5 Qc4 Nf3 g1B Rc1 Qb7 Kg5 Be7+ Kg6 Bd8 Bf8 Nh6 g8N Nd7 Rb1 Rb8 a8N Qa7 Nac7 Rb7 Nd5 Nf6 Nf4 Nfg4 Re2 Rf7 Rb2 Rf1 Re1 d1Q Nh5 Qdd4 Ngf6+ Kd3 Nd7 Ke4 Rc1 Rd1 Nd2+ Kd3 Ra1 Ke2 Nf4+ Kf2 Rab1 Bh2 Ra1 Kg1 Rc1 Kh1 Rcb1 Rf1 Re1 Bg1 Ba3 Rhf8 h8B Rh7 Bg7 Rf7 Baf8 Rh8 Re2 Rd1 Re1 Ng8 Nb3 Rh5 Nd2 N8h6 Kh7
1k2NrN1/2rb1n1Q/2NbR2r/R2P2Bp/4p2n/3q3p/bNr3r1/1N2K2N b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Bd3 g6 Bf1 g5 b4 gxh4 b6 a6 b7 Kf7 b5 Ke8 b6 Ra7 Be2 Qd5 Bg4 Ra8 Be6 Qd8 Bd7+ Kf7 Bb5 axb5 Qe2 Ke8 Qf3 Qd5 Qd1 Qd8 g4 Kd7 d4 e5 f4 c5 f5 h5 g5 c3 f6 h3 g6 c2 g7 e3 f7 b4 Ra7 b3 Ra6 b2 Ra1 e4 Qf3 e2 Ra5 c4 Rd5+ Bd6 Ra5 c3 Bg5 Ne7 g8N Nf5 f8N+ Kc6 Qd3 Bd7 Nh7 Nh4 Nhf6 Rh6 Ne8 c1R+ Qd1 c2 Re5 Ra5 Re6 Rf5 Rh2 Rff6 Rf2 Rf8 Rf5 Bc8 Rb5 Nd7 b8N+ Kb7 Na6 Ne5 Ra5 Bd7 Nb4 Nf7 Nd3 Kc8 b7+ Kb8 Kf2 e1R Ne2 Rh1 Ng3 Rh2+ Ke1 Rf2 Nh1 Rg2 Nc3 b1B Nb2 Ba2 Nb1 Qb6 Rc5 Qa6 Ra5 Ka7 b8N Kb7 Nc6 Qd3 Na7 Kb8 Na3 Ra1 Nb1 c1R d5 Rc7 Qf3 Bc4 Qf1 Ra2 Qf5 Bb3 Qh7 Bc4 Nd1 Rac2 Nb2 Ba2 Nc6+
1r3BrB/Bq3NNn/bBpr3R/bR4p1/kB6/p7/1rPnK3/r4nR1 b - - 0 1 legal: proof: f4 b5 g4 d5 a4 d4 g5 g6 e4 dxe3 Qf3 Kd7 axb5 Ke8 Qf2 exf2+ Kd1 Nc6 f5 Nb8 Bd3 gxf5 g6 f4 g7 f3 Bg6 hxg6 b4 Kd7 d4 f1N h4 a5 b6 Kc6 d5+ Kb5 h5 e5 h6 f5 h7 f2 b7 a4 d6 f4 d7 f3 Rh2 g5 Ne2 c6 Ng1 e4 Nd2 a3 Nc4 e3 Ne5 Na6 b8B Nc5 Nh3 Qc7 d8B Qb7 Nf4 Ne4 Nf7 Ned2 Bd6 Ka4 b5 Nf6 g8R Rb8 b6 Bg7 Rf8 Rg8 h8B Nh7 Rh6 Bc3 Ne6 Bb4 Bcb2 Ba5 Bbc3 e2+ Kc1 Qa7 Bcb4 Ba6 Ng7 Qa8 Bdc5 Qb7 Bde7 Nc4 Rd8 e1R+ Rd1 Re2 Bf8 Ncd2 Rb1 Re6 Re1 Rd6 Kd1 Ng3 Bd4 f1R Rb3 Rh1 Rg1 f2 Bdc5 Ngf1 Be3 Qd7 b7 Rh3 Bb6 Re3 Rb1 Rb3 Ba7 Rb2 Bb6 Rd8 b8B Qb7 B8a7 Rb8 Bc3 Ra2 Rb5 Rb2 Rg3 Ne3+ Ke2 f1R Bb4 Ra1 Rg4 Nef1 Rg1
3Nr1N1/1K3bq1/2N4R/Pbr2RRq/2NBp1p1/2nn2p1/r4bNB/1b3k2 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 b4 axb4 g4 hxg4 c5 e5 d5 d6 Qd4 Bd7 Bg2 Bc8 cxd6 exd4 e5 Ra7 Bf3 Ra8 Be4 fxe4 Kd2 Kd7 h4 c5 a4 b5 f4 g5 h5 g3 h6 d3 Ke3 b3 f5 c4 Kd4 b2 Kc5 d2 h7 d1Q f6 c3 f7 c2 Ra3 b4 Rh3 b3 Nf3 Na6+ Kb5 Nb4 Nbd2 b1B Rh6 b2 Nh4 Nd3 Ng2 Qf6 Kb6 Qg7 Nc4 Ne7 Be3 c1R Bg1 Ba6 Bh2 Bb5 Kb7 Ba2 a5 b1B Rb3 Qh5 Rc3 Re8 e6+ Kd8 d7 g4 Rc2 Bb3 Rd2 Rc2 Rf2 Ra2 Rf5 Rg8 Rg5 Rh8 Ka7 Kc7 d8N Rg8 Nc6 Rh8 Nb6 Kd6 Nc4+ Kc5 d6+ Nd5 d7 Bd6 d8N Be7 Nb4 Kd4 f8R Nc3 Kb7 Bc5+ e7 Ba7 Rf7 Rhf8 Rf3 Rf5 h8B Rc5 Rff5 Bb6 Nd2 Bf7 Nc4 Nc1 Nbc6+ Kd3 Nge3 Ke2 Ng2 Qh7 Bd4 Nd3 Nce3 Qg7 Nc4 Rg8 e8N Ba7 Nf4+ Kf1 Nf6 Re8 Ng8 Rce5 Bdg1 Bf2 Ng2 Rc5 Re5 Be1 Bd4 Bf2 Ref5
rq1r1qNn/3P1p1R/2R3rB/1Npp4/b2r1RR1/n1Kb1b1B/R7/1B3k2 b - - 0 1 legal: proof: d4 a5 c4 g5 h4 gxh4 b4 axb4 c5 e6 c6 dxc6 Bb2 c5 Bc1 c4 e4 Kd7 f4 Qf6 e5 Nh6 d5 Kd8 d6 Ng8 Qf3 Ke8 Qd5 exd5 e6 Qd8 Nc3 Bg7 Nb1 Be5 fxe5 Ra3 Bh6 Ra6 Bc1 Ra8 Kd2 b5 g4 c5 a4 h5 a5 c3+ Kd3 h3 e7 Kd7 e8B+ Ke6 g5 Kf5 a6 Kg4 e6 Kg3 g6 Kf2 a7 c2 g7 b3 e7 h4 Kd2 b2 Ra2 h2 Ra3 b4 Bc6 b3 e8R h3 Ra1 Nd7 Bfb5 Nb6 Ra3 Bd7 Bb7 Nc4+ Kc3 Ne7 g8R Ng6 Ra2 Na3 Re4 Qf8 Nd2 b1Q Bd3 b2 Ngf3 Ba4 Rf4 Rh6 d7 Nh8 Bba6 Rg6 Ne4+ Kg2 Bd2 c1R+ Bc2 Rd1 Nd4 Rd8 Nb5 Ra8 Be3 Rd4 Nf6 Rd8 Rg7 Ra8 Ng8 Rd8 Rc1 h1R a8R h2 Rh7 Re1 Ra7 h1B Rc7 Red1 Rg4+ Kf1 Rc6 Bf3 Bh6 Re1 Bf5 Ra8 Rc2 Ree8 Re2 Red8 Ree4 Qd1 Ref4 b1B Be4 Bd3 Bf5 Bc4 Bb1 Bd3 Na7 Qe2 Bc4 Qe5 Nb5 Be2 Bcd3 Qb8 Bf5 Bd3 Rgg2 Rd6 Bh3 Rg6 Rgg4+
2nnR3/n1p2nr1/RbqB1pk1/PN1B1Rq1/pN2q3/1r2B3/K7/2Rb2R1 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 b4 gxh4 a4 a6 b5 axb5 a5 Qe7 Qb3 Qd8 Qa4 bxa4 Kd1 b5 Kc2 h5 Kb2 h3 g4 h4 e4 h2 d4 b4 e5 h3 g5 f3 d6 f2 e6 b3 e7 Rh7 g6 Rg7 d5 Bg4 Bc4 f1N Nd2 Ng3 Ngf3 Nc6 Ne1 Nf5 Nd3 Bd1 Rb1 Rb8 Rg1 h1Q Nf3 h2 Nd4 Nfh6 Nb5 Qe4 Be3 h1Q Nb4 f6 Rg5 Nf7 Rc1 Qh5 Re5 Qg5 Rf5 Qd7 Ka1 b2+ Ka2 b1N Bb3 Rh7 g7 Na3 Bc4 Ncd8 Bb3 Ngh6 g8R Qc6 Rg6 Ng8 Rg7 Qh5 Rg1 Rg7 Bc4 Qg5 Bb3 Nh8 d7+ Kf7 e8R Kg6 d6 Ne7 Bd5 Nc8 Re6 Nhf7 Re8 Ne6 d8B Rb6 d7 Bc5 Be7 Ned8 Bd6 Bd4 Nc3 Nb5 Re6 Nba7 Nb5 Nb7 d8R Bc5 Rde8 Nbd8 Nd4 Rb8 Nbc2 Rb3 Nb5 Bd4 Nb4 Bb6 Bec5 Qd7 Be3 Bd4 Be5 Bc5 Ra6 Qc6 Bh2 Bb6 Bd6
2QR2RK/p4N2/2nrb3/1k2Bp2/1bR4R/r2rBRp1/qR2Pn1q/6rn b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Bh3 g5 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Nc6 Be6 Nb8 Bg4 hxg4 Kf2 d5 b4 Kd7 c4 f5 h4 d3 h5 d2 h6 d4 b6 Kc6 c5 d3 b5+ Kd7 g6 Qe7 h7 Qf6 b7 Qe5 g7 Nc6 b8R Nh6 Qc2 d1R g8R d2 Nh3 Rg1 b6 d1R b7 Rd3 Ra3 Qd5 Bd2 Qa2 Ng5 Kc7 Rh3 Be6 Nf7 Be7 Rbf8 Rad8 Rh4 R8d6 Rd8 Bf8 b8B+ Kb7 Rc3 Ka6 Be3 Kb5 Rc4 Ra3 Rc3 Rd3 Be5 Bd6 Rg6 Re8 h8R Re7 Rg7 Rd7 Rgg8 Be7 Qc1 R7d6 Rc2 Nb4 c6 Bf8 c7 Nc6 c8R Be7 Qf1 Bf8 Rd2 Be7 Ke1 f2+ Kd1 f3 Kc1 Na5 Rc4 Nc6 Qe1 f1N Rb2+ Qb3 Qd1 f2 Qc2 Bf8 Kb1 Ng3+ Qc1 f1Q Rh7 Qb4 Kc2 Nh1 Rh3 Qf2 Rf3 g3 Rhh8 Ng4 Rh5 Bd5 Rh4 Rdc3+ Kd2 Qh2 Qc2 Rcb3+ Qc3 Qa5 Kd3 Nb8 Kd4 Ngf2 Bg7 Be7 Ke5 Be6 Qc1 Bf8 Kf6 Nc6 Kg6 Qd2 Kh7 Qc2 Kh8 Qd2 Ra2 Rbd3 Be5 Qc2 Rb2+ Qb3 Rd2 Qa2 Rdc2 R6d4 Rb2+ Bb4 Qc2 Rd6 Rcf4 Na5 Qc8 Nc6 Rc4
R2N1kq1/nq2p1N1/3PN3/4r1R1/nB5N/1K1pN3/1nB1Brpr/1bq2q2 b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 c5 g5 cxd4 g6 d3 e3 hxg6 Kd2 g5 Ke1 g4 Nf3 d5 Bb2 f5 Ng1 d4 Qe2 g6 Bc1 Bg7 Qf3 Bf6 Qe4 fxe4 Bh3 d2+ Kf1 d3 Kg2 Bd4 exd4 Ra3 Kg3 Be6 Bf1 Bc8 Kg2 Ra8 f4 d1N a4 b5 c4 g3 h4 b3 a5 g5 d5 e3 Kf3 g4+ Ke4 e2 Kd4 e1R h5 b4 c5 b2 Kc4 b3 d6 g2 a6 g3 f5 Nh6 f6 Nf7 c6 Nf2 a7 Nd7 c7 Nd1 h6 Nc5 h7 Re5 Rh5 Ng5 Nd2 b1Q Ngf3 g1Q f7+ Kd7 f8N+ Ke8 Ba3 Nf7 Rg5 g2 Ra2 Bg4 c8B b2 Be6 Qc1+ Kb4 b1Q+ Bb3 Rc8 a8N Be6 Nc4 Rc6 Ra1 Qc8 Ne3 Nd8 Nc7+ Kf7 Be2 Qf1 Ne8 Ra6 Ng7 Nc6+ Kb5 Qa2 Bb4 Ra7 Ba4 Qd5 Bb3 Ra2 Ba4 Rd2 Bc2 Nb2 Bed1 Rf2 Ra8 Na7+ Ka5 Qdc6 Be2 Q8e8 Rg3 Ba2 Nfe6 Bb1 Rg6 Rf8 h8N+ Kg8 Nf7 Qb7 Nfd8 Rf6 Rg5 Rh6 Ba3 Rh2 Nh4 Nca4+ Bc5 Nb5 Kb4 Na7+ Ka3 Qf7 Bb4 Qg6 Kb3 Qh7 Nd4 Kf8 Nd5 Qh8 Ne3 Qg8+ N4e6+
nR1b1nB1/N7/2k2qR1/pnB3b1/b1r2q2/RBb2RnN/ppR2P2/6K1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 b5 gxh4 Qg4 f6 e5 fxe5 Qb4 e4 d4 cxb4 c4 a5 b6 Ra7 d5 Rc7 c5 Rc6 dxc6 d5 Kd1 Bd7 Ke1 Bc8 g4 h5 c7 Kd7 b7 e5 g5 d4 g6 h3 g7 a3 Bc4 h2 Kf1 h4 Ra2 d3 Nd2 e3 Rb2 b3 Be6+ Kc6 Bf7 a2 Rb1 e4 Ra1 h3 Ba3 e2+ Ke1 b2 Bh5 Qf6 Nb3 Bd7 c8B Na6 b8R Nc7 Bb4 Ne7 g8R Na8 Nd2 Ng6 Rb7 Be7 Rd1 Bd8 Nc4 Nf8 Bf7 Rh4 Nd6 Rg4 Bb3 Rf4 Kd2 e1B+ Ke3 d2 Ke2 e3 Kf1 Be8 Rg6 Rc4 Rb8 Bd7 Rc1 d1N Rc2 Bc3 Ba3 Be8 Be6 Bd2 Bb4 Nc3 Bg8 Nb5 Nc8 Bc3 Ne2 Bd2 Nf4 Bc1 Rhg1 h1N R1g3 e2+ Kg1 e1B Rf3 Ng3 Ba3 Bc3 Bb4 Kc7 c6 Be3 Bc5 h2+ Kg2 Bc1 Nh3 Bg5 Ba4 Be5 Rcc3 Bd4 Ra3 Bc3 Bb3 Nf5 Ng1 h1Q+ Kf1 Qh2 Nh3 Qf4 Kg1 Be7 Bb4 Ng3 Bc5 Kd8 c7+ Kd7 Na7 Bd8 c8R Q4d4 Rc6 Qff4 Nc8 Qdf6 Re6 Kc7 Re2 Kc6 Rc2 Kd7 Ba7 Nbc7 Ne7 Kd6 Bd4 Ba4 Nc8+ Kc6 Bc5 Nb5 Na7+
2n3b1/1BBr1knN/pRNr4/PN1q4/1Rnp3K/3p4/n1r2p2/N1N2bB1 b - - 0 1 legal: proof: f4 e5 c4 exf4 d4 f3 g3 f2+ Kd2 b6 c5 bxc5 Nh3 cxd4 Ng1 d3 Nf3 f5 Qb3 h5 Ng1 f4 Kd1 f3 Qa4 Bd6 Qg4 Bf4 gxf4 hxg4 a4 c5 b4 g5 e4 d5 h4 c4 h5 a6 h6 g3 e5 c3 f5 g2 e6 d4 f6 g4 h7 g3 b5 Nh6 f7+ Ke7 f8N Nc6 b6 Na7 b7 Nb5 b8N Na3 a5 Nf5 Be3 Nc4 Ra4 Nb6 Nd2 Ng7 Nb3 Ra7 Rh6 Qd5 Na1 Rd7 Ne2 g1R Rb4 g2 Nc1 c2+ Kd2 Ke8 e7 Kf7 e8N Bb7 Rd6 Nc8 Nc6 Rh1 Nc7 g1N Rg6 Rh2 Bg2 f1B Ke1 Ba8 Kf2 Rh6 Kg3 f2 Bf4 Nf3 Nb5 Nd2 Bc7 Nc4 Re6 Rg8 h8B Rf6 Nh7 Rh6 Re2 Rhd6 Re6 Re8 Rh6 Re2 Kh4 Rd2 Ne2 c1N Bf3 Nh5 Be5 Na2 Nc1 Rc2 Bh2 Ng7 Bg1 Qc5 Ne7 Bd5 Rg6 Be6 Bb7 Qd5 Rf6+ Ke8 Nc6 Bg8 Rg6 Kf7 Re6 Rd8 Ne7 R6d7 Rb6 Rd6 Nc6 R8d7 Kg4 Ne6 Kg3 Ng7 Kh4
1n1Bb3/1p3BBP/1Q1pB3/1rn1qR2/1B2k1p1/pN1bB3/2NK2pq/b2b4 b - - 0 1 illegal: No proof kernel
1K6/2n3N1/3q2R1/1nQ1n1Rb/RB1q1r2/br1q2qp/nR1RB2P/1bRrk3 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nc3 g4 Ne4 exf6 Nd2 f5 Ndf3 gxf3 Qd2 f4 Qd3 Qg5 Qd1 Qd8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 Ke4 c4 d5 a4 h5 g4 f5 e3 f2 g5 f3 c5 d3 g6 d2 g7 f4 a5 h4 c6 b3 a6 d4 c7 b2 Kb6 b1N a7 h3 Be2 f1Q Qc2+ d3 Ra4+ Qd4+ Qc5 d1Q Ra6 d2 Ra3 f2 Ra2 f3 Bc4 Nd7+ Ka5 b5 Rc2 b4 Ba2 Kd3 e4 b3 e5 b2 e6 Na3 e7 b1B e8R Nb5 Qh5 Ba3 Rd8 Ne7 g8R Rb8 a8R Qg2 Qg5 f1R Ne2 f2 Rg6 Qg3 Rg1 Rf8 Rb2 Rf4 Qc5 Ne5 Bc4+ Ke3 Rdd6 Bg4 Ka6 Nd5 c8R Bh5 Rg2 Re1 Rg5 f1Q Rdg6 Qff3 Rcc6 Qe4 Rc7 Qd3 Rf2 Nbc3 Ka7 Rb3 Ba6 Nb5+ Kb8 Rh1 Rcc6 Ndc7 Rg2 Qf2 Ng3 Rg1 Nf5+ Ke2 Ng7 Ke1 Ra7 Qfg3 Ra8 Qd6 Ra7 Qdg4 Rf2 d1N Rfd2 Ndc3 Ra8 Na2 Ra7 Nbc3+ Bb5 Nb4 Ra4 Qgd7 Bc4 Q3d4 Be2 N3b5 Rdc2 Na2 Bd2+ Kf2 Rc1 Rd1 Bb4 Qf5 Rcc2 Qfd3 Rd2 Ke1 Qb6 Qf5 Rc1 Qfd3 Qc5
N2qnNr1/2b3q1/nkB1p1q1/1NR1NN1b/1q2rrp1/2B3P1/2Q3qb/K4N2 b - - 0 1 legal: proof: a4 c5 b4 h5 e4 a5 d4 cxd4 g3 axb4 e5 h4 f3 h3 Nd2 f6 Ra3 fxe5 Re3 e4 Re2 Qc7 Rf2 Qd8 Rg2 hxg2 c4 b5 h4 d5 h5 Kd7 f4 Kc7 h6 g5 f5 e3 h7 e2 c5 b3 c6 b2 a5 b1Q a6 d3 a7 d4 f6 b4 f7 b3 Rh6 b2 Nh3 g1B Nc4 Na6 Kd2 e1R Qb3 Nf6 Qa4 Re4 Ne5 Ne8 Nf2 Kb6 Qc2 Bh2 Rh5 Bg4 c7 e6 Nd1 Rg8 h8N Bd6 f8N Qa2 Nhg6 b1Q Ba3 Qb4+ Kc1 Qd5 Bb2 d2+ Kb1 d3 Ne3 d1Q+ Qc1 d2 Bb5 Qd7 Ka1 Qg7 Bc6 Qc2 Ne7 d1Q Bc3 Qf3 Qb1 Qfg2 N7f5 Be2 Nf1 Rc8 Rh7 Bh5 Qc1 Qcd3 Qc2 g4 Rh6 Rd8 Rg6 Rd7 Rg5 Rf7 c8N+ Kc7 Nd4 Rff4 Ne7 Kb6 Nb5 Bc7 Nf5 Qd8 Rg6 Qh6 Rg7 Q3d4 Rd7 Qh7 Rd5 Qg6 Rc5 Q4d7 N5e3 Qdh7 Nf5 Qhg7 a8N+
2bNN2R/b2p2NB/2BK1B2/4p1nR/2r3b1/1NbP1N1q/1nqr1qk1/2n1b3 b - - 0 1 legal: proof: g4 c5 e4 a5 b4 h5 e5 hxg4 e6 c4 Ke2 axb4 Ke1 fxe6 Qe2 e5 Qe3 e4 Qb3 cxb3 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 Kh4 c4 b5 f4 g5 a4 e3 h3 Kg3 f5 b2 a5 e2 a6 e1B c5 b3 h4 b4 c6 Qb6 f6 Bg7 c7 Nh6 a7 Na6 h5 Nf7+ Kd5 Qf2 h6 Nc5 h7 Na4 Ba6 Kg2 Ra2 g3 Nc3 b1Q Nce2 g4 Nd4 b2 Ra1 b3 Ra3 Ng5 f7 Qd3 f8N b1Q Rh3 b2 Ne6 Qbc2 Nf3 b1B Rh5 Nb2 Ra2 Qde3 Nb3 Bc3 Ng7 e5 Kd6 Rf8 h8N Rf4 Bb5 Rc4 Bc6 Rb8 a8B Rb5 Nf7 Rd5+ Ke7 Qed3 Rh8 Qh7 Ra4 Qh3 Nd8 Qe2 Ra6 Kf2 Rb6 g2 Nf7 g1B Rg8 g3 Ba4 Qch7 Na5 g2 Nd8 Bb7 c8N Ne4 Nd6 Bc8 Ne8 Kg3 Re6 Ba7 Rh8 g1N Bc2 Kg2 Nb3 Qf2 Bc6 Ne2 Rh6 Rdd4 Bd3 Rd6 Rh5 Bc2 Ng1 Bd1 Bb1 Ng3 Bd3 Bg4 Nf3 Ne2 Bb1 Nd1 Ba3 Nc1 Bc5 Rd3 Be3 Qg6 Bg5 Nb2 Bf6 Ng5 Bc2 Re3 B2e4 Re2 Kd6 Qh7 Bed5 Qg6 Bg8 Qc2 d3 Rd2 Bh7
1bb1k3/rq1Q4/2qBp1n1/7p/r1B1P2r/Rrn1N1rB/3n1rBB/NBK5 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 h4 axb4 d4 cxd4 h5 f4 h6 gxh6 Ra3 h5 Rd3 h4 Re3 fxe3 f4 b5 c4 d5 g4 h5 a5 e6 a6 h3 g5 d3 f5 d2+ Ke2 d4 f6 h2 c5 b3 a7 b2 g6 b4 g7 b3 c6 Qc7 Bh3 Nd7 Nc3 b1Q Bg2 b2 Nf3 Bd6 Ne1 Ne5 Nd5 Rh7 Nc2 Nf3 Na1 Ne7 g8B Ng6 Qa4 Rf7 Bh7 d1N Re1 Qb7 c7+ Qc6 Rf1 Nd2 Rf3 h1R Rg3 Bb7 c8B Rh4 Ke1 e2 Ra3 d3 Ne3 Re7 Qb5 Nc3 f7+ Kf8 Qa4 Bb8 Qd4 Rc7 Qd5 Ke7 f8B+ Ke8 Bd6 Rf7 Qd4 Rf2 Qg7 Qa2 Bh2 b1R Qd4 Rb3 Qd7+ Kf8 Bb2 Qb1+ Bc1 Ne7 Bf5 Ng6 Bfh3 Ba6 Qc7 Ke8 Bb7 Qb5 Bd5 Qc6 Bc4 Bc8 Bg3 Rf3 Bh2 Rg3 Kf2 e1R Bb2 Ne2 Be5 Nc3 Bd6 Qb2 Qg7 Rb1 Qh7 Rb4 Qg7 Ra4 Qc7 Qbb5 Ba2 Rbb4 Ke1 Rb3 Bb1 Qbb7 Qh7 Nb5 Kd1 Nc3+ Kc1 Nf1 Qc7 d2+ Kc2 d1R Qh7 Rd2+ Kc1 Rf2 Qc7 Nd2 Qh7 Bc7 Qg7 Rb8 a8B Ra7 Qh7 Rb4 Qg7 Rba4 Bb4 Qbb6 Bf1 Qd7 Bd5 Qbc6 Bd6 Rb3 Bdc4 Bb8 Bfg2 Qdb7 Qd7+
2R1BNR1/1p3Rrb/k5rr/Br4bN/n2R2n1/RP1nN2r/r1p5/3qn1K1 b - - 0 1 legal: proof: h4 d5 f4 e5 c4 dxc4 b3 exf4 h5 a5 h6 a4 Bb2 a3 Bc1 gxh6 Qc2 h5 Qc3 h4 Qb2 axb2 Kf2 Kd7 a4 Kc6 e4 Kb6 g4 c5 d4 f5 g5 h5 g6 f3 a5+ Ka6 g7 h3 e5 h4 d5 h2 d6 h3 e6 f4 d7 Rh7 e7 Nc6 e8N Nf6 g8R Nd4 Nd2 b1N Ne2 c3 Rg4 c4 Bb2 c2 Rg2 c1N Rg6 c3 Rgg1 c2 Ra4 Ng4+ Ke1 Nc3 Nb1 Rg7 Ra1 Be7 Nf6 Na4 Nh7 Bg5 Nbc3 Ra7 Bg2 f2+ Kf1 Nf3 Ng3 Nd3 Nh5 Nfe1 Nf8 Rg6 Bc6 Ra8 Ke2 f1R Nd5 Ra7 Rg3 Rg1 Ra3 Rg7 Ne3 f3+ Kd2 f2 Ke2 f1R Bc3 Rf5 Bd2 Qb6 d8R Qd4 Be8 Rb5 Bc3 Rg2+ Kf1 Bf5 Rd7 Qd6 Rf7 Bh7 Rg1 h1R Bd2 Nf6 Rg4 h2 Rd4 Qd7 Bb4 Qg4 Bd2 Qd1 Bc3 Ra8 Bb4 Ng4 Bc3 Ka7 a6 Kb6 a7 Ka6 Bd2 Rg3 Ba5 Rh3 Nf4 Rh6 Nh5 Rf6+ Rf4 Rfg6 Rd4 Rd6 Nf4 Nf6 Bd7 Nab2 N8g6 Bh4 Nf8 Rg3 Bd2+ Kb6 Rg7 Rg2 Rg8 Rg7 Raa4 Ng4 Be8 Rdg6 Bc3 Bg5 Ra5 Rc8 a8R Rc4 Rad8 Ra4 Rc8 Ra2 Ra3 Na4 Bb4 Ka6 Ba5 Nf3+ Kg2 Nfe1+ Kg3 Nh6 Rf1 Ng4 Rf2 Rf1 Kh3 h1R+ Kg3 Rhh6 Nh5 Rh1 Rf7 Nf3 Kg2 Rh3 Bc6 Nfe1+ Kg1 Qf3 Bd7 Qd1 Be8
3nRRR1/2N1r2b/pRR1RNb1/P2nK3/r5B1/2Q3p1/qrp2n1b/1qk3r1 b - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 b5 b3 bxc4 Bb2 h6 Bf6 gxf4 g5 Nd7 g6 Nb8 Bg5 hxg5 Ke2 Kd7 a4 Ke6 d4 Kd5 h4 e5 g7 c5 h5 f5 b4 f3+ Ke3 c3 h6 c4 h7 f4+ Kf2 c2 b5 c1N b6 e3+ Ke1 Ke4 b7 c3 d5 c2 d6 g4 d7 e2 Kd2 e1R Kc3 Ke3 Rh2 e4 Na3 f2 Nh3 f3 Ng5 Ne7 g8R Nbc6 b8R Nd5+ Kc4 Nd3 Rh3 Qa5 d8R Bf5 Ra2 Bg6 Rb1 Bd6 Rgf8 Bh2 Rbb8 g3 Rdc8 Nd8 Qa1 Kd2 Kd4 e3 Rb7 e2 Qc3+ Kc1 Ne4 a6 Nb5 Rb8 Rh6 Rg8 Bh3 f1Q h8R f2 Ra3 Rd1 Rc6 e1R Nd2 Re7 Bg4 Qe1 Ne4 f1B Re6 Nf2+ Ke5 Bd3 Rb6 Qh1 Rc6 Rg1 Nc7 Rb2 Nf6 Bh7 Rb3 Bdg6 Rb8 Rgg7 Rhg8 Rgf7 Nd7 Rf4 Rbb6 Qg2 Re8 Qf1 Nf6 Qfb5 Ref8 Qb3 Rh5 Qab5 a5 Qa2 Re8 Ra4 Rf5 Qbb3 Nd7 Qb1 Rff8 Q3a2 Nf6
k3nb2/N1Nnr3/N1N1RnN1/1p3b2/BRp5/4bb1r/KP1q1pNr/2Qq4 b - - 0 1 illegal: No proof kernel
4rRN1/B2p2r1/4p2p/2K1Nq1B/qB1r1b2/1bnPn1q1/R1r2Rbk/1BB5 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 e5 gxh4 b5 f6 Qe2 fxe5 Qc4 e4 Qb4 cxb4 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 g4+ Kf4 c4 a5 c5 h3 b6 h6 g5 e6 f3 Kg3 b7 e3 c6 h2 g6 b3 d3 a3 g7 a2 c7 a4 f4 e2 f5 e1Q f6 b2 f7 a3 Be2 Nc6+ Kc4 Qf6 b8B Nge7 g8B Qf5 Bh7 Rg8 Nf3 Ne5+ Kd4 Nd5 Nfd2 Bb7 c8R Rg7 Rc5 Nc3 Rg1+ Bg2 Nc4 h1R Bg6 Rh2 Bgh5 Bd6 f8B Ng4 Ne5 Ne3 Ba7 Re8 Nd2 b1B Rf1 Bc2 Rf2 Bb3 Bd1 Rh4+ Ne4+ Kh2 Rc8 Rhg4 Nc4 Bf4 Ne5 Qg1 Kc5 Rh4 Rb1 a1Q Bc2 a2 Nf6 Qe1 Ng8 Rhg4 Rf3 Qg3 Rb2 Rh4 Rf2 Rhg4 Bd2 Qd1 Rb8 a1R Ra2 Rc1 Bb1 Rc2 Bd6 Bg5 Bc1 Rd4 Bc7 Bf4 Ba5 Qdf3 Bb4 Qa8 Bb6 Qa4 Ba7 Ree7 Rf8 Re8 Bg4 Rg5 Bf3 Rg7 Bh5
R2nRB2/N2rN1NN/pK2B2q/4pr2/2b3R1/q2bN1r1/Ppk2q1q/2b2n2 b - - 0 1 legal: proof: e4 c5 b4 cxb4 g4 h5 e5 hxg4 e6 f5 Nh3 g3 Qg4 fxg4 Ng1 dxe6 Ba6 e5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 g5 Kb5 Kd5 f4 Kd4 c4 b3 h4 g2 c5 a6+ Kb4 b5 d3 b2 h5 g3 h6 g4 h7 e3 f5 e2 f6 e1Q+ Nc3 b1B f7 Ra7 Rh6 Rd7 Rc6 Qe3 Nd5 Qb6 Re6 Nf6 Ba3 Ne4 Nh3 g1Q Re8 g2 Ng5 Bh6 f8R g3 c6 Qh2 c7 g1Q Bh3 g2 Be6 Ng3 Rg8 Bb7 c8N Qgf2 Na7 g1R Rgf8 Qc1 Ne3 Bd5 Rg8 Qd6+ Ka5 Kc3 d4 Bc4 d5 Nc6+ Kb6 b4 Ra8 b3 Rge8 Qdf8 d6 b2 Bc5 Rg8 h8N Nf1 Nh7 Bbd3 Ng6 Rg3 Ne7 R8g5 Ba3 Rf5 Bc5 Rc7 d7 Kd2 d8N Rd7 Rb1 Qc3 Rc1 Qa3 Rc3 Qg7 Rb3 Bg5 Rb4 Qgh6 Ra4 Bb5 Rg4 Bbc4 Bf7 Kc1 Ne6 Kd2 Ng7 Nd8+ Be6 Kc3 Ng2 Bd2 Ne3 Bc1 Ng8 Kd2 Bf8 Qe2 Nd5 Kc2 Nge7 Qef2+ Ne3+
4q2N/2rN2bk/1Q2pp1B/2prNnNb/b1PnNR1n/2q4N/1bR3pK/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 Kf1 b5 Kg2 c5 a4 e6 d4 f6 h4 Kf7 c4 Kg7 h5 f3+ Kh2 b3 g6 f2 a5 f1Q a6 b4 a7 e3 d5 b2 d6 b3 d7 e2 Nf3 e1B Ra4 Qd3 Qd2 Rh7 Qe3 Qc3 Ng1 Qe8 d8N Nc6 Nh3 Nd4 Nf7 Bd7 Ne5 Rd8 a8N Ne7 Nb6 Nef5 Ra2 Ba4 Nd2 b1B Ne4 b2 Rf1 Rd5 h6+ Kh8 Qf4 Rc7 h7 Bg7 Nbd7 Bbc2 Qg3 b1N Rf4 Bd1 Rc2 Be2 Be3 Nd2 Qg1 Bf2 Qb1 Be1 Qb6 g3+ Kg1 g2 Kh2 N2b3 Bd2 Nh4 Bc1 Ndf5 Be3 Bh6 Bd2 Kg7 h8N Nbd4 Be3 Kg8 g7 Kh7 g8N Bg7 Nh6 Bh5 N6f7 Bd2 Rf1 Bc1 Bh6 Ba3 Rf4 Bb2 Nfg5+
2b1RKb1/2p3R1/pNp1RprP/NqNn4/4r2k/3RB3/n1q1p3/B3B3 b - - 0 1 legal: proof: c4 b5 f4 g5 a4 gxf4 axb5 Nc6 d4 Ba6 c5 Bc8 e3 Nb8 c6 dxc6 g4 Bg7 g5 Bf8 Qg4 Bg7 Be2 h5 d5 hxg4 Bf3 Bd4 exd4 gxf3 Kd2 e5 Kd3 Ke7 Ke4 a6 h4 f2 b4 f1Q b6 f3 g6 Kf6 d6 f2 h5 Qe8 d7 Ra7 d8B+ Ne7 d5 Bd7 b5 Qd1 g7 f1B g8R Bg4 b7 Bfe2 h6 Bd7 d6 Bh3 d7 Bhf1 b6 Qd2 Rg7 Rh7 Ra3 Qc3 Nh3 Qb3 Nf4 Qb5 Be3 Ra8 Nd2 Bh3 Ne6 Bc4 Nb3 Rh8 Re1 Rg8 Na5 Bb3 Rg3 Rg6 Nc5 Qh8 Rgg1 Qh7 Rg5 Bc4 Rd3 Bce6 Bd4 Ba2 Ba1 Bae6 Rgg3 Bhg4 Rg2 Kg5 Rgg3 Kh5 Rg2 Nd5 Bg5 Nb4 d8B Bb3 Be3 Na2 Bh4 Nd7 b8R f6 b7 Nb6 Re8 Bc8 b8N Bg8 Nbd7 Nd5 Kf5 e4 Ree2 Rb8 Be1 Ra8 Rg3 Kh4 Re6 Bb7 Nb6 Re8 Rb2 Bc8 Rbb3 Nf4 Rd8 Re7 Re8 Nd5 Ra3 Qb2 Rd3 Qb5 Bc1 e3 Bcd2 e2 Be3 Qh8 Rg2+ Rg3 Ra3 Rg7 Rd3 Rg4 Rd1 Qg7 Rg1 Nf4 Rd2 Qd7 Rd1 Qd2 Rg2 Qc2+ Rd3 Nd5 Rg1 Kh3 Rg2 Re4 Rg1 Rf3+ Kg6 Rf5 Rg3+ Kh4 Kg7 Rf1 Kf8 Rg1 Rg7+ Rg3 Bb4 Rg6 Be1+
1nq2r1R/2q3nK/3R1NB1/1q4kB/br1P2n1/R5R1/2n2N2/B1nNrn1q b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Nf4 f5 Nh3 f4 Ng1 Bd6 Qb3 f2+ Kd1 Be5 Qf3 Bd6 Qg4 hxg4 Kc2 f3 Kd1 Bf4 gxf4 Be6 Na3 Bd7 Nb1 Bc8 Kc2 Kf7 e4 Kg6 a4 b5 h4 c5 d4 b3+ Kc3 g3 e5 b2 e6 g2 a5 b4+ Kc2 c3 Kd3 c4+ Ke4 b3 a6 c2 e7 c3 e8R Bd7 a7 Qc7 Rh3 Ba4 Bb5 f1N Na3 b1N Nc4 b2 Rd8 f2 Ra3 Ne7 Ne3 Rf8 Be2 Nf5 Nd1 Nh2 Rg3+ Ng4 Nh3 f1N Nhf2 g1Q h5+ Kh6 Bf3 Qh1 Rd6+ g6 Bd2 c1N Be1 c2 Bc3 Ng7 f5 Qc8 f6 Kg5 f7 Qc7 h6 Qc8 Ra1 Na3 h7 b1Q h8R Qb5 Bb2 Nd3 Ra2 c1Q Ba1 Nc2 Ra3 Qcb1 Rh2 Nc1 Rh8 Qb6 Rh2 Qbc7 Rh8 Rd8 f8N Qb5 Nd7 Rf8 Rb3 Nc6 Ra3 Rb8 a8B Rb6 Ne3 Nb8 Ned1 Qbc4 Ne3 Nh2 Nd3 Rb4 Rgh3 Nh6 Nf6 Qb5 Rg3+ Kh4 Rg2 g5 Bh5 g4 Nd1 g3 N3f2 N6g4 Bd5 Kg5 Bdf7 Nf3 Rh2 g2 Rh3 g1R Rg3 Kh4 Kf4 Re1 Be8 Nd2 Bef7 Nf1 Be8 Qbc4 Bef7 Ne6+ Kf5 Ng7+ Kg6 Qb5 Kh7 Kg5 Bg6
1Rn2Bn1/2B1b1bq/2K2N2/1B1Rr1RN/1r1Nr3/7b/p1Pb4/r1qR1r1k b - - 0 1 legal: proof: g4 e5 d4 h5 f4 exf4 a4 hxg4 d5 b5 axb5 f3 d6 g3 Qd5 cxd6 Qh5 d5 Qh3 d4 Qg2 fxg2 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 e4 g5 h4 f5 b4 a5 e5 a4 e6 a3 h5 d3 e7 f4 e8R f3 h6 d2 b6 d1Q+ Nd2 a2 h7 f2 b5 Ra4 b7 Re4 b6 Nc6 b8R Bg7 b7 Qc7 Rh6 Na7 Nh3 g1B Ba6 f1R Rb1 g2 Ree6 Kg3 Reg6 Kh2 Ba3 g4 Rgb6 g3 Rbf6 Bc5 Rb5 g1R Rfg6 g2 Ra8 Be7 b8B Qc1 Nf3+ Kh1 Nd4 d6 Nf4+ Bh3 Rg3 Nc8 Nh5 Rff4 Rg4 Rgf1 Nf6 g1B Rg5 Be3 Ra5 Rg4 Bb5 Bd2 Rhh5 Qa7 Kc6 d5 Bc7 Re5 Rb8 Rge4 Nf5 d4 Bad6 d3 Nd4 Bd8 Bf8 Be7 Ra4 Be1 Ra3 d2 Rd3 d1R Rd2 Qb2 Rd3 Ra1 Rd1 Bd2 Bc4 Nh6 Bb5 Rg8 h8N Qc1 Ng6 Rh8 Nf5 Ng8 Nf4 Rb4 Nd4 Re4 Rh4 Rh5 Rd5 Rf5 Rg4 Rfe5 N4h5 Ree1 Bd6 R1e4 Rg5 Qd7+ Kc5 Qf5 Kc6 Qh7 Bc7
B3R1rr/2K1B3/3n1qBP/1b1qNn2/b2rpR2/1n2N1R1/6nN/2kqq2B b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e3 axb4 Qf3 e6 Qe4 fxe4 g5 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Kd1 g4 Kd2 Ne7 Ke1 Ng8 c3 e3 Ke2 Kf7 Kd3 Kf6 Kc4 d5+ Kc5 b5 h4 g5 a4 e5 h5 e2 a5 e1N a6 g3 a7 g4 c4 d3 h6 b3 Rh2 g2 Na3 b4 Kb5 e4 c5 d4 c6 g3 c7 b2 Kb6 b1N Bb2 b3 Bc3 b2 Ne2 g1R Nc2 d2 Bg2 d1B Na3 Nd2 Nc1 b1Q+ Nb3 Bd7 Bf3 g2 Nc2 Nc6 Ra3 Qb2 Bb4 d3 Nbd4 Nge7 Rh4 Na5 Rb3 Qg8 c8B Ndc4+ Kc7 d2 Bd6 Rb8 a8B Rb4 Bc5 Bb5 Ra3 Kf7 f6 Kg6 f5+ Kg5 f7 Qc3 f8N Qd5 f6 Ra4 Be6 Nf5 f7 Qa1 Rh1 Kf4 Be7 Ncd6 Nd7 Qb2 f8R Rc4+ Nc6 Qf6 Ne5 Ra4 Ng4 Rd4 N2b4 Bda4 Bf7 d1Q Rh4 Qc4 Rd3 Qd5 Nce5 Nb3 Rd8 Rf1 Nc2 g1Q Bh1 Qe3 Rh3 Rg1 Nh2 Rgg8 Bg6 Ng2 Rg3 Qf2 Re8 Qfe1 Na1 Qf3 Rd2 Ke3 Rd3+ Ke2 Nc2 Qg4 Rde3+ Kd2 Ref3 Kc1 Rf4 Qgd1 Ne3
7K/N1B1NNP1/B3qnRn/b7/2b1k1r1/1pRb4/R1qn2Bn/nB3n1n b - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 b4 axb4 f4 exf4 d5 g5 d6 cxd6 Qd4 d5 Qd2 d4 h5 f3 Qf4 gxf4 g5 Ra5 Bb2 Ra6 Bc1 Rg6 hxg6 Bh6 Ba3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 h5 Kf5 Kd5 a4 b3 g7 b2 c3 f2 e3 d3 g6 h4 a5 f3 a6 b4 a7 d2 a8R d1Q R1a3 b3 R3a6 h3 Rh2 Qc2+ Bd3 f1N Rd2 f2 Na3 b1N Nb5 h2 Nf3 h1N Ne5 Bb4 Na7 Qe8 Rb6 f6 Nf7 Ba6 Rd1 Rh4 e4+ Kc5 e5 Kd5 e6 Nbd2 e7 Ba5 Rc6 Nh2 Rg1 f1N c4+ Kd4 c5 d5 Rc8 Nd7 c6 Bc4 c7 Rg4 Bb2+ Ke3 Be5 Nh6+ Ke6 f5 g8N f4 g7 f3 Bg6 Qd1 Bb1 Nf6 Bd6 Qc6 e8B f2 Ne7 Qc2 Bd7 Ke4 Rg3 Qb6 Bb5 Ne3 Ba6 f1B Rg2 Bfe2 Rg3 Nef1 Rc3 Qc6 Re8 Bed3 c8B Qb6 Rd8 Qe3 Bc7 Qb6+ Rd6 d4+ Nd5 Qc6 Ke7 Qd7+ Kf8 Qe6 Ne7 Be2 Rc6 d3 Bd8 Ndf3 Bc7 d2 Bd7 d1N Bdc8 Nde3 Bd7 Bed3 Rd6 Rg1 Bdc8 Qe5 Bh3 Rg4 Re6 N3d2 Rc6 Nh5 Rf6 Qe6 Rg6 Nhf5 Kg8 Nf6+ Kh8 Nh6 Rc8 Qb2 Rb8 Nc2 Rb4 Na1 Ra4 Qc1 Ra2 Qc2 Bg2+
R3R3/2Nb2kn/R6B/KN1q3r/1Pr2N1B/p3N1Bn/1p4b1/bbn3rb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qb3 a4 e3 axb3 a4 b5 a5 Bg7 Ra2 Ba1 Be2 b2 Bd1 Bd7 Bb3 Bc8 Ba4 bxa4 g4 Kf8 d4 c5 Kd2 h5 Kc3 f5 g5 f3 d6 f4 d7 f2 e4 f1B g6 c4 d5 h3 a6 h4 d6 h2 a7 f3 g7+ Kf7 e5 f2 Bf4 h3 Na3 Bd3 Nb5 f1B Ne2 Bb1 Bg3 Na6 Nf4 Nf6 g8N Rh5 e6+ Kg7 e7 Nc5 e8R Bg2 Ne7 Nd3 Ned5 Nf2 Ne3 Nh7 Rg1 Qa5 d8B h1R d7 h2 Bg5 Nh3 d8B Bd7 Rd1 Rb8 a8N Rc8 Nac7 Rg1 Rd6 h1B Rh6 Qa8 Ra6 Qf3 Kd4 c3 Kc5 c2 Kb6 c1N Ka5 Qd1 B5h4 Qd5 Bdg5 Qb7 Ra3 Qd5 Rd3 a3 Ra8 Qe4 Rd6 Qd5 Rda6 Kf7 Nce6 Rc4 Nc7 Kg7 Bh6+
1n6/3pnN2/nR1qq1B1/pk6/1rNn1RbN/1r1bB2R/1r2P3/1n1BBK2 b - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 g3 cxd4 Kf2 e5 Ke1 exf4 Be3 f3 Bg5 Be7 Bc1 Bf8 Na3 h5 Qd3 f5 Qd2 f2+ Kd1 f4 Nb1 f3 Qf4 Bd6 Qg4 Bf4 gxf4 hxg4 h4 a5 c4 g5 b4 d3 h5 d2 f5 a3 b5 g3 c5 a2 b6 g2 h6 g4 h7 g3 f6 Qe7 b7 Qe6 f7+ Kd8 f8B Kc7 c6 Kb6 c7 Ne7 Rh3 Kb5 Kc2 d1Q+ Kc3 Qdd6 Nd2 Ra6 Nc4 Rb6 Be3 Rg8 h8N Rg4 Rc1 a1N Rc2 Nb3 Nf7 Nc5 Bg7 Rh4 Bf6 Rd4 Bh4 Rd2 Rc1 Rb2 Rc2 Nca6 Rc1 Nbc6 b8R Rb7 Ra8 Ncb8 Rc2 Rb6 Rc1 Bb7 c8B Be4 Bb7 Bd3 Be4 Rb4 Kd2 Rb7 Bg6 Rb6 Rh1 Rb3 Nh3 g1N Bg2 f1N+ Ke1 Nd2 Nhg5 Nb1 Kf1 f2 B2e4 Nf3 Rh3 Nd4 Nf3 Rb4 Nce5 Rb2 Rc6 Rb4 Nc4 Rb2 Kg2 f1B+ Kg1 g2 Be1 Rb3 Nh4 Rb4 Kf2 g1R Bd5 Rg4 Bde4 Bg2 Bef5 Bf3 Kf1 Rg2 Be4 Bg4 Bd5 Bdf5 Be4 Rb2 Bc2 Bd3 Bd1 Rg3 Rc7 Nbc6 Rf8 Ncb8 Rc6 Bdf5 Bg1 Rgb3 Be3 Bc2 Nd8 Bd3 Rf4 Ka4 Nf7 Rb4 Bf5 Kb5 Bh7 Nc7 Bg6 Nca6 Rb6+
2N2Rr1/2p3Bn/k1rB1n2/Rr1r3R/3q2PK/n1p4B/1B2Nn2/2b1nN1b b - - 0 1 illegal: No possible last move, all moves rejected
1N2r1q1/K1p1R3/1BP2p1B/B1k2b1b/2rqR2R/r1N1n2N/1r1Bq3/3n1q2 b - - 0 1 illegal: No possible last move
r1B1qNKB/1Br2r2/RN1RP3/8/2p2k1q/2p2N2/2nrRq1q/R1n1r2b b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Nf4 f5 Nh3 f4 Ng1 Bd6 Qb3 f2+ Kd1 Be5 Qf3 Bd6 Qg4 hxg4 Kc2 f3 Kd1 Bf4 gxf4 Be6 Na3 Bd7 Nb1 Bc8 Kc2 Kf7 e4 Kg6 a4 b5 h4 c5 d4 b3+ Kc3 g3 e5 Kf5 a5 g5 d5 g2 h5 b2 e6 b4+ Kd2 b3 Ke3 c3 h6 g4 a6 g3 d6 Qe8 d7 Nf6 d8R Nh5 a7 Na6 h7 Bb7 Ra2 Nb4 Be2 f1R Ba6 f2 Nd2 b1Q Nc4 b2 Nb6 c4 Kd4 Re1 Be3 f1R Nf3 g1Q Rd6 g2 Rh2 Bc6 Ra1 Ng3 Bc8 Ne2+ Kc5 Qd3 Bd4 b1R Ra6 Rg8 h8R Nc2 R8h3 Kg4 f5 Rb2 f6 Qf2 f7 g1Q f8N Kf4 Rg2 Rg7 Rh1 Qe4 Rgh2 Rb8 a8B Nc1 Bab7 Rc7 Rg2 Qh2 Rhg1 Qd2 Re2 Ra8 Bh8 Ra2 Rd8 Qde3+ Kd6 Qef2 Rd7 Qeh5 Ke7 Qe8+ Kf6 Qeh7 Rh1 Q7h4+ Kg7 Rb2 Rg1 Bd5 Kg8 Be4 Ne5 Bh1 Nf3 Rb5 Rd1 Rd5 Rdd2 Rdd7 Rd6 Rf7 Bf6 Rd1 Bh8 Rfe1 Rg5 Rd3 Rga5 Rd2 Ra1
b1bn1NBq/2b2pr1/1p4q1/1KPNr3/R7/1BN2r2/2r1kb1N/BR1Rq3 b - - 0 1 legal: proof: d4 e5 b4 c5 f4 exf4 g4 cxd4 h4 a5 h5 axb4 Qd3 Nc6 Qg6 hxg6 g5 Nh6 gxh6 Ne7 Kd1 Ng8 Kd2 Qf6 Ke1 Qd8 e4 Ke7 Kd2 Kd6 Kd3 Kc5 a4 d5 c4 b6 h7 b3 a5 b2 h6 g5 e5 f3 e6 f2 a6 g4 a7 g5 e7 g3 e8N g4 Nc7 g2 Bf4 g3 Na3 b1Q+ Nc2 Bd6 Rh5 Ne7 Rg5 Re8 h8N Nc6 h7 Re5 Ne8 Bc7 Nf3 g1R Ra4 g2 Nf6 Qf8 Rg6 Nd8 Nh2 Rb8 Be2 f1R a8B Rf3+ Be3 Rc1 Bd1 g1B Rg8 Qh6 Ng6 Bf2 h8R Qg7 Rh4 Qh8 Bb7 Ra8 Nf8 Ra5 Rh5 Rg5 Bc6 Rg7 Bd7 Rb5 Bf5 Ra5 Bh7 Rb5 Ke2 Ra5 Nb4 Qg6 Bb3 Rc2+ Bd2 Rb5 Na2 d3+ Kd1 Kd4 Bc3+ Ke3 Ba1 d2 Nc3 d4 Rd5 Ra5 Rd6 Re5 c5 Kf4 Nfd5+ Kg3 Ne3 Kf4 Ke2 d1B+ Kf1 Kg3 Ned5 d3 Rd7 d2 Rd6 Rf6 Rd7 Bf3 Rd6 Be4 Ke2 Rff5 Rd7 Bg2+ Kd3 d1Q+ Kc4 Rf3 Kb5 Qc1 Nf6 Qe1 Rd1 Rfe3 Rb1 Ba8 Nfd5 Rf3 Ne6 Nc6 Rd8 Kg2 Rd7 Nd8 Nf8 Kg3 Bg8 Kg2 Nb4 Kg3 Rdd1 Kf4 Nca2 Ke3 Nd5+ Ke2 Nac3+
n2r2k1/3BPR2/1nB2b2/1pNn3n/r1R1pB1N/r5r1/2r1r2q/1N1NRK2 b - - 0 1 legal: proof: f4 d5 h4 e5 e4 c5 b4 cxb4 f5 a5 h5 a4 h6 dxe4 Qh5 Be6 fxe6 gxh6 Qf5 h5 Qh3 h4 Qb3 axb3 d4 b5 a4 h5 g4 f5 c4 e3 e7 Kf7 d5 b2 a5 e2 g5 b3 d6 e4 d7 h3 a6 f4 a7 h4 c5 h2 c6 f3 c7 h3 c8R f2+ Kd2 e1R Nc3 b1R Ra5 b2 Rc7 Re2+ Kd1 Ra1 Nb1 Ra3 Rc2 Nf6 g6+ Kg8 g7 Nh5 Bh6 Na6 Rd2 Nc7 Nf3 Qb8 d8N Ra4 Rg1 h1R Bf4 h2 Bh3 f1N Bd7 Ra3 Rd6 Nd2 Nb7 Nc4 Re1 Nb6 Nc5 Rg1 Nh4 h1R Rf6 Rgg3 Ra4 Rhh2 Rf7 Rhg2 Rc4 Rc2 Re3 Rh2 Ke1 Rhe2+ Kf1 Ra4 Nc3 b1N Nd1 Ra3 Bh6 Nc3 Bf4 Red2 Re1 Re2 Nb7 N3d5 Nc5 Kh7 g8N+ Bg7 Nc3 Ra4 Nh6 Rd8 Ng4 Kg8 Nf2 Bf6 Nb1 Raa3 Bc6 Qc8 Nd1 Qh3+ Ng2 Qh2 Nh4 Rab8 a8B Ra4 Bab7 Rba8 Be8 R8a6 Bd7 Nca8 Bbc6 Raa3 Ng6 R6a4 Nh4
1R2K3/2N2P2/2n3rn/2b1pBq1/pn1R4/8/r1Brrpkr/bR1BN1BN b - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 Bd2 e5 Bc1 e4 g4 Ba6 f5 Bb7 Qf3 Ba6 Qf4 gxf4 g5 Be2 h3 Bg4 hxg4 Qa5+ Kf2 Qb6 Ke1 Qd8 Ke2 Kf7 b4 h5 c4 a5 b5 e5 f6 Ke6 f7 d5 b6 e3 Kf3 e2 g6 e1R b7 a3 g5 Kf5 g7 a2 g6 h4 c5 a4 c6 d3 c7 d4 Nc3 h3 Nce2 h2 Be3 d2 Rd1 Nc6 b8R Nh6 g8B a1B g7 d3 c8B+ Kg5 Ke4 Kh4 Ba7 f3 Bh7 Qg5 Kd5 Bc5 Ng3 Re2 Ke6 Rd8 Bb6 Ra6 g8N Rd5 Rb1 d1N Ne7 d2 Bc2 Nb2 Bd1 Rd7 Nd5 Nd3 Nc7 Ndb4 Bh3 Rd3 Bf5 Ra3 Kd7 Ra2 Bfc2 Kg4 Ke8+ Kf4 B8f5 f2 Nf3 Ke3 Ne1 Kf4 Rg1 h1R Rf1 Rh2 Nh1 Ke3 Rg1 Kf4 Rg4+ Ke3 Nd3 Kf3 Rd4 Kg2 Ba5 Nd5 Bc3 Ndb4 Bb2 Na5 Bc1 Rg6 Ne1+ Kf1 Bb3 Nac6 Bdc2 d1R Bf4 Rdd2 Bg3 Rh3 Bh2 Rh5 Bg1 Rh2 Nd3+ Kg2 Bd1 Qe3 Bbc2 Qg5 Ne1+
1n1n3b/3R2B1/p1r1k1r1/1B1N1Nn1/pn2p2r/3qr1BN/2RnP1N1/2K4R b - - 0 1 legal: proof: d4 b5 g4 h5 b4 hxg4 a4 bxa4 d5 f5 d6 cxd6 b5 f4 b6 a6 b7 Nc6 bxc8R Na7 Rc6 Rc8 Qd3 d5 Qh3 d6 Qg3 fxg3 Rb6 d4 Rb8 Rc7 Ra8 Rc6 Kd2 Kf7 c4 e5 f4 g5 h4 d5 c5 e4 h5 g2 f5 g3 h6 g4 f6 d3 h7 d4 Na3 Bg7 Nc2 Ke6 f7 Nf6 f8B Nd7 Ne1 Nb8 Ngf3 g1R Rh2 g2 Bb2 g3 Kc1 Qd5 Rh1 d2+ Kb1 d1N Ra2 d3 Nh4 d2 Nf5 Bf6 Bg7 Nf2 Be5 Nd3 Rc2 Nb4 Kb2 d1N+ Kc1 Qd3 Bf4 Ne3 Bc7 Rd8 h8N Nc4 Ng6 Nd2 Bd6 Rh8 Nf4+ Kf7 Bc7 Rh4 Nh3 Ke6 Bd6 Rc8 Bc7 Nac6 Ra7 Nd8 c6 Bc3 Bd6 Ba1 Rd7 Rc7 Bh6 Bh8 Bg7 Rc8 Rh2 Rh1 c7 g1N Ng2 Ngf3 Bf4 Rg1 Rh1 Ng5 Nge3 g2 Bfe5 Nb7 Bg3 Rf8 c8N Rf6 Nce7 Nd8 Rh2 Rh1 N7d5 g1R Ng2 Rfh6 Ne1 Rg6 Bg2 Rhh6 Bf3 Rf1 Bh5 Rf3 Bg4 Rh4 Bh5 Rg1 Rh1 Rf6 Be8 Re3 Ra7 Rg6 Bb5 Rf1 Rd7 Rff3 Kb2 Rf1 Ng2 Rc1 Rc8 Rc6 Rcc7 Rb6 Rc2 Rc6 Kc1
NNnbkB1K/n4pn1/5P2/4R3/pq1b2bp/1rR1q3/1B2p1R1/NrB4B b - - 0 1 legal: proof: e4 b5 a4 bxa4 h4 d5 b4 dxe4 b5 g5 Qg4 gxh4 Qh5 c5 Qxc5 a3 Qc7 Qd5 Qd8+ Qxd8 Ke2 a5 Ke3 e5 g4 h5 c4 a2 d4 h3 f4 a4 c5 h2 b6 h4 c6 Na6 f5 Qd6 c7 Nb4 d5 Qc6 g5 Bd6 f6 Qd7 g6 Rh7 g7 Ba6 c8N Rh6 b7 Bd3 b8B Qg4 Nb6 Ba6 Ne2 Be7 d6 Nc6 Na3 Rg6 Nd4 Bd8 Nac2 Na7 Nc6 Bc8 Bg2 Ne7 Re1 h1N Rb1 a1B Rb3 Bf5 Rc3 Ng3 Bh1 Nec8 Bc7 Be6 Nb8 Nh5 Re2 Bb2 Na1 Bd7 Re1 Qe6 Re2 Rg1 Re1 Qe7 g8R+ Qf8 Rg6 Ng7 Rg2 Bg4 Ree2 Ba3 Bb2 Rb1 Bc1 Bb2 Re1 Qe7 d7+ Kf8 Ree2 Qe6 Bd6+ Qe7 Ba3 Qb4 Nc6 Rb8 Na8 Rb5 Nb8 Rb6 Kd2 e3+ Kd3 Qc5 Ke4 Qb4+ Kd5 e4 Ke5 Qe7+ Kf4 Rb3 Kg5 Qb4 Re1 e2 Kh6 e3 Kh7 Ba5 d8B Ke8 Be7 Bd8 Rd3 Bd4 Bf8 Qb6 Kh8 Qb4 Reg1 e1Q Rc3 e2 Bab2 Qg3 Rf1 Qh3 Rf5 Qe3 Re5+
5rq1/n3nB2/1P1pb1RB/4ppnB/5N1K/p4q2/n4BrR/1krNR2N b - - 0 1 legal: proof: e4 b5 f4 c5 d4 cxd4 a4 bxa4 e5 g6 e6 fxe6 Nc3 e5 Nb1 e4 g4 Qc7 h4 Kf7 f5 Nf6 g5 Bg7 Qf3 Ng8 f6 Bh6 Qf5 gxf5 g6+ Ke8 Rh3 Bf4 Rh1 Bg5 hxg5 Qd8 Kf2 a5 Kg3 e5 b4 h5 c4 d3 f7+ Ke7 f8B+ Ke6 g7 e3 c5 Kd5 c6 Kc4 c7 Kb3 g6 Kc2 b5 d6 b6 a3 Nf3 h4+ Kh3 d2 Bb2 d1N Rh2+ e2 Rh1 e1N Be2 a4 Nc3 a2 Ng1 a3 Rh2 Ne7 g8R Nbc6 g7 Be6 c8N Na7 Rb1 a1R Bh5+ Ng2 Nge2 Ne1 Bc1 Nf3 Be3 Ra2 Bf2 Ng5+ Kg2 h3+ Kg3 Rh6 Kh4 Rg6 Ng3 Ra1 Nh1 Rb8 Na4 Nc3 Nb2 Na2 Re1 Rc1 Nd1 Kb1 Bf3 Nec6 Ne7 Rc8 Nd5 Ne7 Nf4 Qe8 Rg2 h2 Bh5 Ra8 Rh8 Qc8 g8B Rb8 Ng3 h1Q+ Rh2 Qg2 Rh6 Qf3 Bf7 Ra8 Bg7 Qg8 Nh1 Rf8 Rg2 Ne4 Rh2 Rg2 Rg6 Ng5 Bh6
2K1R3/r1pp1NN1/4q3/B1P1Nkpn/B1q5/nr1nbpR1/2p2b1R/4B2N b - - 0 1 illegal: No possible last move
1K4n1/p1Rq4/2q2qn1/bRrr3N/4b3/B6N/PBBBk1nR/qn1bNr2 b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 e6 dxe6 g5 e5 Qe2 e4 Qg4 hxg4 Kf2 Kd7 d4 Ke6 b4 Kf5 h4 e5 b5 c5 b6 f3 Kg3 f2 g6 c3 g7 e3 d5 Ke4 b7 f5 h5 c2 d6 e2 d7 Kd3 h6 f4+ Kg2 c4 h7 e4 Nh3 c3 Ng1 e3 Rh3 f3+ Kg3 Bb4 Kf4 g3 Ke5 g2 Na3 Qf6+ Kd5 Ba5 d8N Nc6 b8B Bb7 Bb2 c1N Bd6 c2 Nf7 Nce7+ Kc5 Ng6 Bd4 Rd8 Rb1 Be4 Ng5 Nb3+ Kb5 c1Q Ka6 Nd2 Rb5 Nb1 Ne6 Qc6+ Bb6 Kd2 Nf4 e1Q Nh5 e2 Rh2 Qd1 Nc2 e1N Ba3 Rd5 Nh3 g1Q Bd3 Ng2 Ne1 f1R Bc2 f2 Nf3+ Ke2 Ne1 Qcd6 Kb7 Qc6+ Kb8 Rc5 Bd8 Qdd7 Bc7 Nh6+ g8R Qh1 Rc8 Rd8 h8B Ng8 Bd3+ Kd2 Rb4 Qc3 Be2 Rg1 Ng3 f1B Nd3 Qdd6 Bf3 Be2 Rb3 Re1 Bd4 Qf1 Rb5 Qf2 Nh5 Qa1 Bdb2 Rf1 Ne1 Qe6 Bg3 Rdd5 Rc7 Qed7 Bg4 Qff6 Bf4+ Kd1 Bd2 B2f3 Bh6 Bc2 Bf5 Ke2 Be4 Bd1 Bc2 Be4 Bd2
1R1K1B2/2pn2k1/4r1p1/BNnB1r1p/2bN4/1Rb1q1Rr/1NP1r1n1/4b1qB b - - 0 1 legal: proof: g4 a5 h4 d5 b4 axb4 e4 dxe4 g5 Qd4 h5 Qd8 Qg4 g6 Qf5 gxh5 g6 h4 g7 Qd5 Qg5 Qd8 Qg6 fxg6 Ke2 Kf7 Ke3 h5 Kf4 b5 Ke5 e3 f4 b3 a4 h3 d4 b4 a5 e2 f5 e1B f6 h2 d5 b2 d6 b3 a6 Nd7+ Kd5 e5 Kc6 e4 a7 e3 Ra2 e2 Bd2 Qe8 Na3 b1R Nf3 b2 Bg2 Nc5+ d7 Ba6 Nd4 Qe3 d8R Bc4 Rg1 h1R Ba5 Rh3 Nab5 Rc1 Re8 b1Q Rb8 Rd1 Ra4 Rd2 Rb4 Bd6 Bf3 Be5 Rg3 Qa1 Rb3 Rh7 Rb6 Re8 a8N Re7 Rb8 Qc1 Ne6 Bc3 Bh1 Rd5 Nb6 Rf5 Ned4 Qg1 Rd8 Qce3 Na4 Rh8 Nb2 Re6+ Rd6 Nh6 g8B+ Kf8 f7 Ng4 Rg2 Nf6 Rg5 Nfd7 Rg3 Kg7 f8B+ Kf6 Bf7 Rh7 Bg8 Re7 Bf7 Bed2 Bg8 e1N Bf7 Ng2 Bg8 Na4 Kb7 Re8 Rb6 Be1 Bf7 Re7 Kc8 Nac5 Rb8 Ree5 Kd8 R7e6 Be7+ Kg7 Bg8 Qh6 Bf7 Re2 Bd6 Qhe3 Bg8 Re4 Bd5 Re6 Bf8+
5RbN/1qnp2q1/6bb/r1p5/1B2kRR1/3prb1K/r1Pn1BN1/Nr3R1B b - - 0 1 illegal: No possible last move
3Br3/nbK2R2/3R1p2/nB1rqP2/n3N2p/2b1B1Np/1r1p1B2/1Rbk1bN1 b - - 0 1 illegal: No proof kernel
3r4/n4NBB/1q1p2p1/b3B1k1/RN1p2pn/1R1Pr3/1NK2R1p/1B1r1bqn b - - 0 1 illegal: No proof kernel
2Rb3R/1bPb2qn/1p3bkN/4nrR1/3N4/6B1/RpKp2QN/q5N1 b - - 0 1 legal: proof: d4 a5 g4 e5 f4 c5 e4 cxd4 b4 h5 gxh5 f5 exf5 axb4 a4 exf4 a5 b6 a6 d3 c3 Ra7 Bg2 Ke7 Be4 Rb7 axb7 Ke8 Bd5 Qc7 Bb3 Qd8 Bc2 dxc2 Kd2 Kf7 h4 g5 c4 d5 c5 g4 h6 d4 c6 f3 h5 g3 h7 g2 h6 b3 f6 b2 c7 d3 Ra8 f2 Qf1 Nc6 b8N Qe7 Rh5 Bb7 Ra2 Ne5 Nc6 Kg6 f7 Nf6 Nd4 Bg7 f8R Qa3 Re8 Rf8 h8R Nh7 Rc8 Bf6 Qe2 f1B Qg4+ Ng5 h7 Qe7 Kc3 Qg7 Bf4 c1B Nd2 Be2 Qg3 Bg4 N2f3 Bd7 Nh2 Be3 Qf2 d2 Kc2 Bd8 Bg3 Rf5 Nge2 g1Q Qg2 Qa1 Ng1 Bf3 Rg8 Bb7 h8N+ Kf6 Nf7 Kg6 Re8 Nh7 Nh6 Beg5 Rh8 Bgf6 Rg5+
2rbNRb1/5b2/3R2Nn/P1Q4b/bKnR2pn/4qqR1/1B1N2N1/1q2k3 b - - 0 1 legal: proof: d4 d5 f4 e5 g4 exf4 b4 a5 c4 axb4 a3 h5 e3 hxg4 Bd3 b5 Bc2 c5 Bb3 Ra4 Ba2 b3 Kd2 bxa2 cxd5 c4 Ke1 c3 Nf3 Rc4 Ng1 Rc5 dxc5 Ke7 Kf2 Kd7 Ke1 Ke8 h4 Ke7 h5 Kf6 a4 Kg5 d6 f5 a5 b4 d7 b3 e4 g3 c6 b2 h6 c2 Kd2 f3 Kc3+ Kg4 e5 g5 e6 f4 e7 g2 e8R Kg3 c7 Kf2 h7 g4 Re4 Nc6 Kc4 Be7 Kb5 Nh6 Rc4 Ne5 Qd4+ Ke1 Nc3 b1B Nd1 f2 Ne2+ f1B Ng3 g1N Nf2 f3 Bf4 c1Q Nh3 f2 Ne4 Qf8 d8R Qe3 Nd2 Ngf3 Qc5 Nh4 Kb4 Be6 c8N Bf7 Rcd4 Nc4 R8d6 Bd8 Be5 Bg8 Bg7 Qff3 Rg1 Bf7 Rg3 Bg2 Na7 f1B Nb5 Bd3 Nc7 Bc2 Be5 Ba4 Ne8 Bf1 Bf6 Bd3 Be5 Bdg6 Nf4 Bh5 Bf6 Rf8 h8N Bg8 R4d5 Bgf7 Bb2 Bg8 Rd4 Bhf7 Bc1 Bbg6 Rb1 Bh5 Nhg6 a1Q Rb3 Qb1 Bb2 Qef2 Re3+ Q2e2 Re5 Qee3 Rf5 Be7 Ng7 Rc8 Ne8 Bd8 Rff6 Be6 Rf8 Bef7 Ng2+
R3R3/1Knrr3/3kr2B/4RRb1/b2Qn1r1/2qrP1Bq/2n5/1NBBn2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 Kd3 a5 Kc4 d5+ Kc5 f5 c4 g5 h4 a4 b4 f4 b6 d3 b7 g4 e3 a3 h5 f3 h6 d4 b5 f2 h7 a2 b6 d2 Qe1 d1R Rh3 d3 Rb1 a1N Kb5 d2 c5 Bd7+ c6 Bh6 Nf3 g1R Bg2 f1Q+ Kc5 Ra6 c7 Ba4 c8R Rh1 Nh2 Qdd3 Rh5 Bg5 Rd8 Qc3+ Kd5 Nc2 Bf3 g2 Rb5 g1N Qh4 g3 Qd4 Qh3 Nf1 g2 Re8+ Kd7 Be2 Nf3 Ra5 g1R Re5 Bf4 Rhf5 Nfe1 Re8 Bg5 Rfe5 Nc6 b8R Nd8 b7 Rg4 Ra8 Re6 b8B Re7 Rf5 Ne6 Bg3 Nf6+ Ke5+ Kc7 Bf3 Ne4 Kd5+ Nd6 Rb5 Rg8 h8B Rg6 Bg7 Rf6 Bh6 Kd7 Qc4 Nc7+ Kc5 Rg6 Kb6 Ne4+ Kb7 Rge6 Rbe5 Kd6 Bb2 Ra1 Bc1 d1R Nd2 Ra3 Nb1 Rd3 Bd1 Rb3+ Kc8 Rb7 Qd4+ Nd5+ Qc4 Rbd7 Kb8 Nc7 Kb7 Qa3 Qc3 Qa1 Qc4 Qc3 Qd4+
2r1bBBq/NnBN1Nq1/2bBbk1q/1Qb5/2P1R2N/rb4b1/5q2/bK6 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a4 Nc6 Ra3 h6 Rc3 Nce7 Rc5 h5 Rg5 Nf5 gxf5 Ke7 Rg6 Ke8 Rg4 hxg4 Kd2 Ke7 e4 b5 c4 d5 Kc2 g5 h4 g3 h5 g4 a5 g2 h6 d3+ Kb2 d4 h7 d2 e5 g3 a6 b3 a7 f2 e6 b4 Qe2 d1B Be3 f3 Rh6 d3 Na3 d2 Rh1 Kf6 e7 Nh6 Bb6 Be6 Kb1 b2 Qe3 Bg7 Rh4 Nf7 Nc2 Nd6 Rh3 Nb7 Ka2 b1B+ Kb2 b3 Nd4 Be4 Rh2 Bc6 Kb1 b2 Nb5 Bb3 Qc5 d1B Bd3 f1Q Bc7 f2 Nf3 g1B Rh4 g2 Re4 Bh2 Nh4 g1B Qb6 Rc8 a8N Bg3 Na7 Qh3 Qb5 f1Q Nb6 Qf2 Bd6 Rf8 h8B Bh5 Bc7 Bhe8 Nd7+ Kf7 f6 Ra8 Nf5 Qh6 Bc2 Kg6 f7 Rg8 f8B Kg5 Nc8 Ra3 Na7 Bc3 Bhe5 Qg7 Nb6 Qb8 Bed6 Kf6 Nh4 Qd8 Bb4 Qdd2 Bbd6 Qdh6 Re3 Bd4 Bh7 Bc5 Re4 B1h2 Na4 Be5 Nb6 Bhg3 Nd7+ Kf7 Qa5 Qh8 Ng6 Q6g7 Qb5 Bc3 Nb6 B8d7 Nh4 Qg6 Bg7 Rc8 Bf8 Qgg7 Bg8+ Kf6 e8N+ Kg5 Nf6 Be8 Ng4 Bce5 Nh6 Kf6 Re2 Ba2+ Kc2 b1Q+ Kd2 Qbe1+ Kc2 Ba1 Nf7 Qa5 Kc1 Bb3 Kb1 Qd2 Re4 Qdh6 Nd7+
3BnNBQ/2r1r1N1/K3bN1q/b5n1/B3n2q/2RN2bp/P2q4/1Bq1n1k1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 b3 f6 b2 Nc3 bxa1Q Nb1 exf6 Kf2 f5 Ke1 f4 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 f5 Kb5 Kd4 g4 c5 d6 h5 g5 c4 d3 c3 e5 c2 g6 h3 e6 h2 g7 f3 e7 h4 e8B f2 d7 f4 Qd2 f3 Na3 Nc6 Qd1 Nf6 g8B Qc3 Bb3 Ne5 Qd2 Nf7 Qe1 Qd2 Qe6 Ra7 Qc6 Ke3 d4 Rh7 d5 Bd6 Bd3 f1N Nb1 Kf2 Qc7 Ng5 Qb6+ Ne3 Na3 Bg3 d6 Re7 Qd4 b6 Qc3 Rc7 Ne2 Ng2 Nb1 Ne1 Bg8 h3 Rg1 h1Q Nf4 Qg2 Bb2 c1B Bc2 Qe3 Nd2 Qe6 Beg6 Ne8 Qh8 Qh2 Bgf5 Qh6 Bf6 Bb2 Rh1 Bc3 Ba4 Ba5 Bb1 Qg2 Rh2 Kg1 Ne4 Qd2 Nd3 f2 Rh1+ Kg2 Rf1 Kh2 Rg1 f1N Rg2+ Kh1 Rf2 Kg1 Rf3 Bb7 Re3 Bd5 Ka6 b5 Rf3 b4 Re3 Qb8 d8N b3 d7 b2 Ne6 Qbb4 Ng7 Be6 d8N Qd4 Nc6 Q4b4 Nce5 Qd4 Ng6 Q4b4 Bbc2 b1Q Nf8 Qbc1 Bb1 Qd4 Be5 Q4b4 Nf6 Qbh4 Bb2 Qdc3 Ba3 Nd2 Bc5 Nde4 Bb6 Q3d2 Rf3+ Rc5 Bd8 Rc8 Nf2 Rc5 Rc3 Rcc7 Nd3
1QrBq3/K7/br1nRn1r/b5N1/R4rB1/n1Bkp2R/3qB2P/q2q2R1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 Nd2 gxf4 Ndf3 h6 g5 h5 Ne5 Ba6 Ng4 hxg4 Rb1 Bb7 Ra1 Bc8 Ke2 Kf7 b4 Kg6 c4 Kf5 c5 a5 g6 e5 c6 d5 g7 d3+ Kd2 g3 Kc3 e3 c7 Ke4 b6 d2 b7 e2 b5 e1N b6 a4 Nh3 g2 Bb5 g1R Ba3 d4+ Kc4 d3 Rb1 f3 Bb2 f2 Qc2 d1Q Bd4 f1R Qd2 a3 Ra1 a2 Bc3 Nc6 b8B Rh6 b7 Na7 Qb2 Nf6 g8R d2 Rh8 Rgg6 Rg1 Nc2 Bc6+ Ke3 Bg2 e4 Ng5 Rf4 Bf3 Bb4 Qb1 Ba5 Kc5 Qc1 Re8 d1Q Re6 Qcd2 Qb2 Bb4+ Kb6 Nb5 Ba7 Nca3 b8R Qg8 Qb3 Ba6 c8B Nd6 Bd7 Qh7 Rh8 Qf7 Bb8 Kd3 Bc7 e3 Bd8 Rb8+ Ka7 Rc8 Qb2 Ba5 Qb8 Qe8 Rh7 Rh3 Rh4 Rh6 Rh5 Rg3 Rh3 Rgg4 Re4 Rgh4 Bdg4 Rg6 Re6 Rhh6 Rb1 a1Q Rb4 Rh5 Ra4 Rgh6 Nh7 Rb5 Ng5 Rb6 Be2+
1Kb2rQb/1RpR1P1R/b6n/3q1nB1/2r3qn/N1r3B1/1p2B2R/4qB1k b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Na3 fxe4 Qg4 bxa3 Qf3 Nd7 Qd1 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 Kb5 e3 f4 h3 g4 h2 d4 e4 a5 e2 f5 e1Q f6 h4 f7 a2 g5 e3 g6 e2 g7 h3 a6 Qd7+ Kc4 Nc6 Kb5 Rh4 a7 Qg4 Nf3 Nce7 Rb1 a1R Nd2 Nh6 g8R Bg7 Rh8 Nef5 Rh7 Bh8 Rb3 b6 Nb1 Ra3 Bg5 Rb8 Rb2 Rc3 Na3 Ra8 Qc1 Rb8 a8B Ba6+ Kb4 b5 Ka5 b4 Bc6 b3 Bb5 Bc8 Qe3 Ba6 Qe8 Rd8 Qg8 Rf8 Rg1 h1Q Rg2 Bc8 Rh2 Qhe4 Bf4+ Qe5 Bg3 Ba6 Rf2 h2 Rb1 h1B Rh2 Bg2 Rb2 Bh3 Rb1 Ke7 d6+ Ke6 d7 Kd5 d8R+ Ke4 d5 Kf3 d6 Qee4 d7 Qd5 Rb8 b2 d8B Qg6 Rc1 Rhc4 Rb7 Qg4 Rb1 Qf2 Be7 e1N Bg5 Ng2 Rd1 Ngh4 Rd2 Qe1 Rd4 Qc5 Rd7 Qd5 Rb6 Bc8 Rb7 Bg2 Ka6 Bh3 Bd3 Bf1 Ka7 Be2 Kb8 Bf1 Rh1 Kg2 Rh2+ Kg1 Be4 Be2 Bg2 Bd3 Bf1 Be2 Rf2 Kh1 Ba6 Bd3 Rg2 Be2 Rh2+ Kg1 Rb3 Rc5 Rg2+ Kh1 Rb7 Rc6 Bd3 R6c5 Bc2 Rc6 Bd1 Ba6 Bde2 R6c4 Rh2+
3kq1r1/N2q1B1b/1P4b1/1RB1Qn1q/4K3/1BpR2BR/2q3np/1qb1R1r1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 Kf2 c5 Kf3 f5 g4 h5 e4 h3 d4 h4 e5 h2 b7 b3 d5 b2 d6 b1Q g5 h3 g6 c3 e6 c4 e7 c2 b6 c3 g7 Na6 b8R Qd7 Bg2 Nh6 g8R Nc5 Bf1 Nd3 Rg2 Ne1+ Ke2 f3+ Ke3 f4+ Kd4 f2 Ba3 c1Q Rg7 f3 Bc5 Ng2 Qe1 Rg8 Rg5 Qcc2 Bc4 f1B Ne2 f2 Bb3 Nf5+ Kd5 Ra5 Nd4 Bd3 Nc6 f1Q Qe5 Bh6 Na7 Qfe2 Re1 h1Q Ra8 Qba2 Rad1 Qab1 Rh5 h2 Rh3 Ra1 Rd2 Qh5 Rdd1 Bf1 Rdd3 Bc1 Ke4 Qg1 Nb5 Qgf2 Ra5 Qg3 Na7 Qgg6 Rb5 Ba6 Rb4 Bc4 Rb5 Bf7 Bf2 Qge6 Bh4 Bg6 Bg3 Kf7 e8B+ Kf8 Bf7 Qee8 Kd5 Bh7 Rd2 Bd3 Rdd1 Qc7 d7 Qcc8 d8B Qcd7+ Kc5 Be4 Rd3 Bg6 Bg5 Bh7 Be3 Bg6 Qb8 Ke7 Qe5+ Kd8 Bef2 Nd6 Kd4 Bh7 Bfe6 Beg6 Bf7 Nf5+ Ke4 Be3 Bfd5 Qbb2 Re2 Rg1 Bf7 Qbb1 Re1 Bc1 Bc5
1NKn1r1q/R2QB3/1p1b2n1/p2NRR1r/3qb3/3r3N/k1nRN1qP/1q6 b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 hxg4 b5 d5 cxd5 Bd7 Qa4 Be6 Qd1 Bc8 a4 Qf6 a5 Qd8 b6 axb6 a6 Bf5 Bh3 Bd7 Bf1 Bc8 a7 Nh6 Bg2 Nd7 Be4 Ng8 Bd3 Nb8 Ba6 bxa6 Kf2 Ke7 e4 Kd6 d4 c5 Nf3 f5 Qf1 g5 Na3 g3+ Ke2 g4 Kd3 g2 Kc4 g1R Qe1 g3 Ra2 a5 Kb5 c4 Ng5 c3 Rf2 c2 Qd1 g2 Nh3 f3 Nb1 f4 Nc3 Ne7 Ne2 Nbc6 Be3 Bd7 Ka6 c1Q Kb7 Rh5 Rf1 Rc8 a8R f2 Ra7 f3 Bg5 Ng6 Bh4 Bf5 e5+ Kd7 d6 Ke6 d7 Kd5 e6 Kc4 e7 Be4 e8N Bd6 d5 Qb1 Nf6 Qh8 Bg5 Rf8 d8N Kb4 Qd4+ Ka3 Kc8 Ka2 Re1 f1Q Qd1 Be5 d6 f2 d7 Bg3 Nd5 Bd6 Nd4 Qe2 Be7 f1N Qd3 Qf2 Ne2 Ne3 Rf1 Qff6 Rf5 Rd1 Re1 Qfa1 Qd4 g1Q Qg7 Qg2 Qf7 Nb8 Qe8 Qad4 Nc6 Nc2 d8R Rd3 Qd7 Na6 Nb8 Nc5 Re8 Ne6 Rd1 Nd8 Rd2 Qd1 Bh4 Qc1 Ree5 Qb1 Be7
3r2b1/1rkp1B1P/8/b2rR1Rr/2Qnq3/4n1NR/1n1p1KB1/1BBqRb2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 e4 f5 c4 a5 h4 g5 b4 d3 h5 g4 h6 d2+ Ke2 f4 c5 a4 c6 a3 e5 a2 e6 f3+ Ke3 f2 e7 Ba6 c7 Nc6 c8B Ne5 b6 Bc4 b7 Nd3 b8R Nf6 b5 Bg8 b6 Nb2 b7 Nd5+ Ke2 Ne3 Nh3 g1R Qe1 g2 Nf4 g3 Rb1 a1N Rh3 Nb3 Kf3 Qc7 Bb5 f1B Bd3 Qc2 Nh5 Qc4 Qe2 Nd4+ Ke4 Ra7 h7 Rh1 Ra1 g1Q Bb1 g2 Ng3 Qa4 Qc4 Ra5 Ra8 Rd5 b8R Bg7 Rb6 Be5 Raa6 Bc7 Rb5 Ba5 Bb7 Qd1 Kf4 Qh2 Re6 g1R Re5 Qhe2 Nf5 Rg6 Ng3 Rb6 Bc6 Rb7 Rc5 Kf7 e8B+ Kf8 Rg5 Ke7 Bf7 Kd6 Rb5 Kc7 Ke4 Rd6 Rbe5 Rd5 Kf4 Rc5 Bg2 Qd3 Nf5 Qe4+ Kg3 Rh2 Kf2 Rh1 Rf3 Rh6 Rh3 Rh5 Qd3 Rcb5 Ng3 Rd5 Qc4+ Nc6 Qe2 Qdc2 Ba2 Nd4 Qc4+ Nc6 Bg6 Bf7 Rb1 Rhb8 Ra1 Bg8 Bf7 Rd8 Rb1 Na4 Ba3 Qb3 Re1 Qd1 Bc1 Nb2 Qd3 Nd4 Bb1 Qc2 Qb5 Qd1 Qc4+
4rB2/nPbn1N2/K1b4B/p1N1r1r1/1N3rBN/q4pBR/1Qqq1k2/6n1 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 h5 f5 b6 d5+ Kb5 g5 c4 a5 h6 g4 h7 f4 b7 d3 c5 d4 c6 d2 c7 Ke3 Na3 d3 Rh3 Be6 c8N Bd5 Nb6 Kf2 e4 Bd6 e5 Bc7 e6 Qf8 e7 Nd7 e8N Ne7 b8B Nc6 Na4 Na7+ Ka6 Bc6 Qb3 d1Q b5 d2 b6 Qc2 b7 d1Q Be2 Qdd2 Nf3 g1N Qb2 g2 Nd6 g3 Nh4 Rg8 h8B Rg5 Bf3 Re5 Bg4 f3 Nf7 Qfb4 Nc5 Qba4 Nb5 Qa3 Bf6 Bb6 Bd6 Bc7 Nc3 Rae8 Bf8 Ne2 Nb5 g1R Nc3 g2 Na2 Re1 Bg5 Ng1 Bf4 R1e4 Bh2 Rf4 Nb4 Ne2 Qa1 g1R Qc3 Rg2 Qb2 Ng1 Qc3 Rc4 Qb2 Qdc3 Bch6 Rf4 Bh5 Rgg5 Bg4 Q3d2 Bg3+
1b2b3/N2r1k1p/4B2q/1Q3r1r/B1bbKNB1/NB1PN3/3rp2n/R1nq4 b - - 0 1 illegal: No possible last move, all moves rejected
RqB1r1Qq/4bp2/pNb1n2B/2b4k/RRK3b1/pPB5/1q4r1/R2bB3 b - - 0 1 legal: proof: d4 e5 a4 b5 h4 bxa4 g4 c5 f4 cxd4 h5 exf4 h6 Nc6 Nd2 Nb4 Ndf3 Nd5 Ne5 Ndf6 Ng6 Nh5 gxh5 hxg6 Kd2 d5 Kd3 g5 c4 a3 e4 f3 b3 a6 h7 g4 c5 g5 h6 f2 e5 g3 e6 g2 c6 g4 e7 g3 c7 Bb7 c8R Bc6 Bg5 Nf6 Rh2 Rg8 h8B Nh5 h7 Nf4+ Kc2 d3+ Kc3 d2 Qe2 d1B Bh6 d4+ Kc4 d3 Rh1 d2 Qf3 Ne6 Qd3 Bg4 B8g7 d1B Ne2 g1B h8B g2 Bc3 Rg7 Rc7 Qb8 Nf4 Rg6 Be2 f1Q Rh4 Bc5 Be1 g1Q Nd5 Qfg2 Qg3 Q1h1 Nb6 Qf2 Bf1 Qb2 Bhc3 Qhh2 Qg1 Qe5 Rd7 Qh8 Rd4 Rg7 Bh3 Rg5 Nd5 Kd7 e8R Bfe7 Rg8 Kd6 Rc8 Ke5 Nb6 Kf6 Re4+ Kg6 Re8 Bh5 Rhf4 Rg2 Bg4 Ng5 Bc8 Ne6 Rf8 Bhf3 Rd8 Kh5 Red4 Rh2 Qg8 Bg4 Bd7 Nc7 Kd3 Qb7 Ra4 Rg2 Rfb4 Ne6 Kc4 Qc7 Rb8 Qd8 Rb7 Qc7 Ra7 Re8 Ra8 Qb8 Bc8
kNn2r1R/3KB3/1r1QRB2/R1p4n/r2B2rr/2Pq2pr/2b1p2R/3B1q2 b - - 0 1 legal: proof: f4 e5 Kf2 a5 e4 f5 b4 axb4 g3 h5 Nc3 Bd6 Nd5 exf4 e5 f3 e6 dxe6 Ne3 f4 Ng4 hxg4 Ke1 f2+ Ke2 f3+ Ke3 Bf4+ gxf4 Ra7 Bg2 Ra6 Bf1 Ra8 Ke4 Kd7 Ke5 Kc6 h4 b5 d4 Kb7 a4 c5 f5 g5 f6 b3 d5 g3 f7 b2 f8R b1R h5 g4 h6 b4 a5 g2 h7 b3 c3 b2 d6 Nd7+ Kf4 e5+ Kf5 e4 Ke6 e3 Re8 Ngf6 Be2 f1R Rh2 f2 Nf3 g1R Ne5 Nh5 Nc6 Nb6+ d7 g3 Qd6 Rh1 Bd1 e2 Bh6 Ra7 a6+ Ka8 Bd2 Rg8 h8B Rg4 Ra4 Rc1 Ra2 b1R Bf6 Bb7 Ra3 Nc8 Nb8 Be4 Ra5 Rb6 Be3 Bc2 Bed4 Ra1 Rh8 Ra4 Rh6 Rab7 a7 Rbb4 Rh8 R7b6 Re8 Qc7 d8B Qh7 Re7 Qd3 Kd7 Rh4 Re6 Rh3 Bde5 Rg4 Bde7 Rhh4 Rg2 R1h3 Bd4 Rg1 Rh2 f1Q Re5 Rg2 Re6 Rf2 Bfe5 Kb7 a8R Rf7 Bf6 Rf8 Na6 Na7 Re8 Nc8 Rd8 Ka8 Re8 Rf7 Rh8 Rf8 Nb8+
NB1q4/Kb3rpR/Nr1N2B1/1b4n1/1p1p2Qn/k4N2/rP3rp1/1B1B1r2 b - - 0 1 illegal: Other
8/2Rpq1P1/1Bb1BR1p/r1p1r3/2Rb1N1p/kQ1bnR2/3B2bK/1Bb2q2 b - - 0 1 legal: proof: d4 e5 h4 exd4 c4 a5 b4 axb4 h5 b3 h6 gxh6 Rh3 h5 Rh1 h4 e4 f5 e5 b5 Bd3 b4 Nd2 Nc6 Ne4 Na7 Bf1 Nb5 cxb5 fxe4 g4 Ke7 a4 c5 f4 d3 Kf2 b2 Kg2 b1Q b6 e3 f5 d2 a5 h6 f6+ Ke6 a6 Kd5 f7 e2 e6 Kc4 a7 b3 e7 Kb4 e8B e1B b7 b2 b8B Ne7 g5 Qc7 g6 Bf2 g7 Bd4 Ra6 Qd6 Ne2 Nd5 Nf4 Ne3+ Kh2 Be7 f8R Bg5 Bd3 Bb7 Bc7 Qe7 Bb6 Bg2 Bf7 Rg8 Qc2 d1B Be6 Bdf3 Bh7 Re8 a8R Bc6 Rc8 Qa1 Qd3 b1B Rc7 Rh8 Qd1 Bd3 Rf1 Ra8 Rf6 Rhe8 Rf3 Ra7 Ra2 Ra5 Rc2 Qb1 Bd2+ Ka3 Rc4 Qc1 Qc2 Qf1 Beg8 Qd8 Be4 Re5 Be6 Qe7 Qd1 Be2 Bb1 Bd3 Qc2 Nd1 Ne2 Bb5 Bc3 Bc1 Nf4 Bc6 Bd2 Ne3 Qb3+
1Q1N1B2/3b1rBn/3K4/2r1pq1k/BN2bb1N/pNn5/PRn1br2/1B3b1r b - - 0 1 legal: proof: c4 e5 b4 b5 d4 bxc4 e4 g5 h4 gxh4 Nd2 f6 Rb1 Ke7 Rb3 Kf7 Re3 exd4 e5 Ke7 e6 Ke8 Re5 fxe5 Ke2 d5 Kf3 a5 g4 h5 e7 Kf7 e8N Kg6 g5 c5 b5 h3 b6 h4 b7 d3 Qc2 h2 Qb2 d4 Ke4 a4 f4 c3 f5+ Kh5 g6 h3 f6 c4 f7 a3 g7 c2 Qb3 c3 Ndf3 d2 Nd6 d1B Kd5 d3 Nh4 d2 Bb5 Bd7 Ba4 Nc6 b8N Qg5 Ndf5 Nb4+ Kc4 Ra7 Nh6 Nf6 g8B Qf5 Bb5 Nh7 Qb2 Be2+ Kb3 d1B Ngf3 Bf1 Nd2 Bde2 Nc6 Bc5 f8B Be3 Qb1 Bf4 Ba4 Rb7 Rg1 h1R Rg2 h2 Nf7 Ra7 Nfd8 Rc7 Bb2 c1R Bg7 c2 Bd4 Ra7 Bc5 Rb7 Bc4 Rf8 Bd3 Rf7 Kc4 Rb5 Bcf8 Rc5+ Kb3 Rd1 Ndf3 Rd2 Nfd4 Ra5 Kc4 c1N Nb3 Nc2 Bc5 Rb5 Kd5 Ra5 Kd6 Rb5 Bb4 Rc5 Bh6 Bf3 Bg7 Rf2 Qb2 Ne2 Qb1 Nc3 Qb2 Ra5 Bc5 B3e2 Nb4 Ne3 Bb1 Nc2 Kc7 Rb5 Bcf8 Rc5+ Kd6 Rg1 Qc1 h1B Rh2 Be4 Qe3 Rc8 Qb6 Rh1 Qb8 Rc5 Rh3 Bd5 Rd3 Be4 Rd2 Ne1 Rb2 Nc2 Bh8 Qh3 Bf6 Qf5 B6g7
4bN2/k7/r1p1RpQ1/nnRN1Rq1/1KBn1n2/n1P1NR1r/rb2N3/5q1n b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 e4 dxe4 g5 h6 f5 g6 Bb2 gxf5 g6 f4 Bf6 Ra4 Bh4 Ra8 Bg5 hxg5 h4 Kd7 d4 Kc6 Kd2 Kb6 a4 e5 h5 e3+ Kd3 e2 Kc4 e1R c3 g4 g7 g3 a5+ Ka7 h6 b5+ Kb3 f3 a6 f2 d5 e4 h7 g2 d6 e3 d7 e2 Qd6 Ne7 g8R Nd5 Qe6 Nc6 Rg7 Qg5 d8N f6 Qd6 Nf4 Rf7 Na5+ Kc2 b3+ Kb2 b4 Qd2 Bd7 Qd5 c6 Qd3 Bd6 Rf8 Be8 Ne6 Rc1 Qe4 e1Q Ne2 g1N Rh5 Nf3 Qg6 Nd4 Nd2 Bc5 Ra2 Ra1 Nc4 Qd1 Ra3 Qd3 Ne3 Ra2+ Kc1 Qdf5 Rg8 Qh3 Nf8 b2+ Kd2 b3 Rg7+ Bd7 Re7 b1N+ Kd1 b2 Re6 Bd6 Rb3 Bc5 Rb5 Ba3 Rc5 Qhg2 Rh3 Be8 Rf3 Qg1 Ng3 Qg2 Bc4 f1N Ne2 Ng3 Rf5 Nh1 Rc5 Nb5 Kc2 Nd2 Rf5 Qf1 Rc5 Rg8 h8R Ndb3 Rh5 Rh8 Rf5 Ng2 Rc5 b1N+ Kd3 Bb2 Rcf5 Kb6 a7 N3d4 Rc5 N1a3 Rcf5 Rc8 a8N+ Ka7 Nc7 Rb8 Rc5 Rb6 Ncd5 Ra6 Rh4 Nb7 Rhf4 Rh3 Rf5 Nb1 Bb3 Nf4+ Kc4 Na5+ Kb4 N1a3 Bc4
3N4/NNR1p1bk/1R1bpn2/2bbPrRN/3q1Q2/2R5/Bb5K/nnnr1q2 b - - 0 1 illegal: No extended proof kernel
2q1r1Q1/3Rnbqq/1rB4p/q1b2b2/p1bBBR2/1N2k1nb/P1B2R2/K2R4 b - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 c4 bxc4 e5 f5 Nd2 g5 Ne4 gxh4 Bf4 fxe4 Bg5 Ne7 Bc1 Ng8 Kd2 Ke7 Kc2 Ke6 Kb1 Kd5 g4 a5 f4 c5 b4 e3 e6 Ke4 b5 d5 g5 e2 e7 e1Q e8B a4 g6 h3 g7 h6 b6 d3 b7 c3 f5 c4 f6 h2 f7 c2+ Kb2 d2 Bc6 Nf6 g8B Qa5 Bg2+ Ke3 Bb5 d4 Bbc6 d3 Bgf3 Ra6 Bb5 Ne4 Be2 Bf5 Bd7 Rb6+ Bb5 Nc6 b8R Bc5 f8R Ne7 Be6 Ng3 Rfc8 Re8 Nf3 Qg1 Nd4 Qg2 Rb1 c3+ Ka1 Qg1 Ba3 c1Q Rc7 c2 Bd5 Qg2 Qf1 d1B Bb2 d2 Bed3 Bdg4 Bbc6 d1B Nb3 Bh3 Rd7 Bh5 B5e4 Bf7 Rbd8 Qcd2 Rd1 c1Q+ Bb1 Qa7 Qc4 Qda5 Rhf1 h1B Rf4 Qg1 Bc2 Bhd5 Rd2 Qc7 Rdf2 Qc8 Be4 Qc2 Bh8 Bde6 Rd1 Qd3 Bc2 Qdd7 Qd5 Qda7 Rd7 Qg2 Qe5 Bc4 Qg7 Qac7 Qg8 Q7b7 Bed3 Qe4 Bc3 Qe5 Bde4 Qg7 Be5 Qh7 Bf6 Qbc7 Bb2 Qe5 Bc3 Qeg7 Bd4+
2N5/1r1q4/1B1QB1qn/1prb1N2/B1q3b1/pPnk1q2/pq4NB/R1bNK3 b - - 0 1 illegal: No proof kernel
1NB2q2/B3rpkr/2p4B/q1Q1R1bb/4pPr1/1Kn1B1N1/r1nb4/3NN1r1 b - - 0 1 illegal: No possible last move
b6k/Q2pBBbp/1Np2Rnq/Rr6/rp1K1Rp1/B4q1n/q1P5/2r2RB1 b - - 0 1 illegal: No proof kernel
q1B1k3/1b6/p3p1N1/3pN3/P2QB1pn/1rb1rqpn/1Nn3BR/1NK2nB1 b - - 0 1 legal: proof: b4 c5 d4 cxb4 a4 h5 g4 hxg4 e4 e6 d5 Ke7 e5 exd5 e6 Kf6 e7 d4 Ra3 Ke6 Re3+ Kf6 Re6+ fxe6 Kd2 Kg6 Ke1 Kf7 Kd2 b5 c4 d5 f4 g5 h4 a6 h5 b3 f5 b2 f6 b4 c5 d3 c6 b3 c7 Bb7 c8B Nh6 Nc3 b1N+ Ke3 d2 Bg2 b2 Nf3 Bg7 Qg1 d1N+ Ke2 Nf5 h6 Nf2 h7 Nh3 Kd1 Nc6 Rh2 Nd2 Ne1 b1Q Nd3 Nh4 Nb2 Nf1 Qd4 Qe4 Nb1 Nb4 Be3 Nc2 Kc1 Qf3 Bg1 Rb8 e8B+ Kf8 f7 g3 Nd1 g4 Nb2 Ke7 Bb5 Rf8 h8N Be5 Bd3 Qe8 Qf4 Bc3 Be4 Qc6 Bd7 Rfc8 f8N Rc7 Bc8 Ke8 Nfg6 Rf7 Bf2 Rf5 Bg1 Re5 Bf5 Re3 Be4 Qb6 Qe5 Qa7 Nf7 Qa8 Qd4 Bc6 Ng5 Rb3 Nf7 Bb7 Nfe5
B3K3/qqb1brN1/bR6/2nNNPbN/N1rR2n1/2nn1k2/3b1N2/2n1B3 b - - 0 1 legal: proof: c4 c5 a4 f5 d4 cxd4 e4 fxe4 h4 b5 axb5 g5 Qf3 gxh4 Qc3 dxc3 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kd5 Kg4 b4 a5 f4 h5 f5 e5 b6 h3 g3 a4 c5 c2 c6 h2 b5 h4 c7 h3 b7 a3 b6 e3 Bg2 e4 Nf3 a2 Ke5 d5 Bb2 c1N Rd1 h1N Nc3 e2 Ba3 e1B Bb2 e3 Ne4 d4 Nfg5 h2 Bc3 d3 Ne6 e2 Ng7 d2 Rb1 Na6 b8N a1B b7 Nc5 Rb6 Nh6 Nc6 Rh7 b8N Nf2 Nd7 h1Q Ne7 Ba6 Kd6 Nfd3 c8N Bb2 Bb4 Be5+ Kc6 Qg1 Nd5 Bc7 Ba5 Be7 Nf2+ Kg5 Bh1 Ng4 Ne5 Rh4 Bb4 Ra7 Bg2 Qg8 Bc3 Qh7 Be4 Na4 Kd7 Nac5+ Ke8 Rb7 Nf4 Ra7 Nfh5 Qg2 Ba8 Qb7 Nh1 Bf2 Bb4 Be3 Nf2 e1B Ba5 Nh2 Bc3 Ra4 g4 Rc4 Ba5 Kh4 g5 Ng4 g6 Kg5 Ne6+ Kh4 g7 B3g5 g8N Qg7 Ngf6 Qh7 Nhg7 Kg3 Ngh5+ Kg2 Nd5 Qg7 Nd7 Kf3 Ne5+ Ke2 Bc3 Bcd6 Bb2 Qc7 Nh3 Bf8 Nf2 Nf4 Ng6 Kf3 Rc6 Qb6 Be5 Rc7 Bc3 Qa7 Bb4 Qb2 Ne3 Rf7 Neg7 Bfe7 Nb6 Bc7 Na4 Qb1 Bc3 Qbb7 Rb6 N1b3 Rb1 d1N Bb4 Bc3 Nd5 Be1 Rb2 Nc1 Ba5 Bb4 Rd2 Bc3 Rd4 Nfd3 Bb4 Be1 Bd2 Nc3 Nh3 Beg3 Be1 B3f4 Nf2 Bd2 Ne5+
1n4r1/1R4rR/nqNpR2P/5r2/1RB5/r1RrrrR1/B2kNn2/3bb1K1 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 g5 b5 axb5 f3 Be3 h6 Qd3 g6 Qf5 gxf5 g6 f4 Bf2 Be7 Bh4 Bf8 Bg5 hxg5 Kf2 Ke7 h4 Ke6 e4 Ke5 c4 a5 b4 f5 h5 d3 b6 Kd4 h6 d2 e5 d1R e6 a4 b7 a3 g7 g4 e7 a2 e8R Ra3 c5 Nf6 g8R Rdd3 c6 g3+ Ke1 f2+ Ke2 g2 c7 Ng4 b5 Bb4 b6 d6 Re6 Be1 Rf8 Rg8 Nh3 g1R Nd2 Kc3 Rb1 a1N Rf7 Nc2 Rh7 Nb4 Nc4 N4a6 Na5 Bd7 c8B Ba4 Rb4 Kc2 Bg2 f1R Bd5 Nf2 Ba2 R1g7 Nc6 Rfg1 Rh2 R1g3 Kf1 f3 Rg2 f4 Ng1 Kd2 Ne2 Bd1 Kg1 Ne4 Bb3 Nd7 Rc4 Qc7 b8R Qb7 Re5 f2+ Kh1 f3 Rc3 Qc7 b7 f1R+ Kh2 f2 Ba2 Rge3 Rg3 Rg1 Re7 f1R Re5 Rf5 Re8 Ne5 Bce6 Nd7 Bec4 Rgf1 Re6 R1f3 Kg1 Nf2 Rc8 Re8 b8R Reg8 Rb4 Qb6 Rc7 Ndb8 Rb7
2k1b3/6nK/qrN3pn/NNN5/rp1N3P/3b2p1/rRB4N/B1Rbr2n b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bd2 f4 Bc1 f3 Na3 f5 Qd2 h5 Qf4 f2+ Kd1 Bd6 Qg5 f4 Nb1 f3 Qg4 Bf4 gxf4 hxg4 Kd2 b5 Kd3 d5 h4 Kd7 e4 g3 a4 b3 c4 b2 c5 b4 f5 Qe8 e5 Qd8 f6 Bb7 a5 Nc6 e6+ Kc8 e7 Ra7 e8N Qe7 a6 Qe6 f7 Rh7 f8N Rh8 Nd2 b1R Nf6 Nh6 Ra2 Qd6 Bb2 Ra1 Ne2 Ne7 c6 Nef5 c7 Bc6 Nc4 Be8 Ng4 g6 Nh2 Rg8 Ne6 Ng7 Nc5 Re1 Bg2 f1R Ba1 f2 Be4 Qf6 Kd2 d3 Ke3 d2 Na5 d1B Bc2 d4+ Ke4 d3 Rb2 Qe6+ Kf4 d2 Kg5 Ra8 a7 Qa6 Nd4 Rb8 a8N Rb6 Ndf3 Rg1 Nd4 Rg2 Rg1 f1B Rh1 Bf3 Rg1 d1N Rh1 Bc4 Rf1 Nf2 Rg1 Re7 Rc1 Nh1 Nce6 Kd7 c8N Qb5+ Bf5 Bf7 Na7 Ng4 Rb3 Ra2 N7c6 Bd1 Nac7 Ra8 Nb7 Kc8 Rb2 R8a4 Nba5 Qa6 Bc2 Be8 Nc5 Bd3 Ncb5 Re2 Ndf3 Re1 Nfd4 Ngf2 Kh6 Ng4+ Kh7 Nh6 Rbb1 Nh5 Rb3 Ng7 Rb2
BqBb3B/2b2rb1/4qNp1/rq3bB1/R1R1n1PK/1N1n1k2/b5BB/4n2q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 b4 fxe4 d5 axb4 d6 h4 Qd3 cxd6 Bb2 d5 Qg3 hxg3 Bc1 d4 c4 Kf7 f4 Kg6 a4 d5 h4 e5 a5 b5 c5 d3 c6 g2 Kf2 e3+ Kg3 e2 c7 e1B+ Kh3 d2 a6 d1Q a7 d4 Ra6+ Nc6 Bd3+ e4 Ne2 g1B Nec3 b3 Ra3 b4 Be3 b2 Bf2 b3 Ra2 Qe2 Ra1 Rh7 Na4 Bf5 c8B e3 Bc2 d3 Nc5 d2 Ra4 d1Q Ra5 Ne5 Ra6+ Nf6 Rc6 Nd3 Bg3 Ba5 Nc3 b1B Nd5 b2 Bh2 Bc7 Nb3 Ba2 Rc4 Ne4 Nf6 b1Q h5+ Kh6 Ra4 g6 Kh4 Rf7 Rc4 Bg7 Ra4 Rb8 a8B Rb5 Rc4 Ra5 Ra4 Bd7 f5 Qe8 Rc4 Qe6 Ra4 Qdf1 Bd1 Qeb2 Bf3 e2 Bg2 Bgb6 Rg1 Qf4 Rc1 e1N Rcc4 Qf1 Kh3 Kg5 h6 Qbe5 h7 Qh1 h8B Bd8 Nh5 Bbc7 f6 Rf8 f7 Qb5 Nf6 Qb8 Nc1 Q1b5 Nb3 Qea6 Rc6 Bf5 Rc1 Qe6 Rcc4 Re8 f8B Re7 Bf1 Rf7 Be7 Bg3 Bg2 Kf4 Nd7 Ke3 Nf6 Bgc7 Kh4 Kf2 Ne8 Ke3 Bg5+ Ke2 Nf6 Kf2 Bh3 Kf3 Bg2+
2q2n2/4N2r/1bRk1bB1/b1pBb3/B1r2r1B/1N2r2b/npP1B3/B1RK1n2 b - - 0 1 illegal: No proof kernel
K1N1R3/npNrpB1B/r1nb2Br/1p2P1qB/5B1b/2B2Rq1/2b4k/6rb b - - 0 1 illegal: Other
2N1rNkB/rBBp4/3Pbb2/4BN2/n5K1/Rpq1rrb1/3nR2N/1n6 b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 b5 b4 cxb4 a4 bxa3 Rh2 g5 Qe2 gxh4 Qxb5 a6 Rh1 axb5 Ke2 Kf7 Kf3 e5 d4 h5 c4 a2 g4 h3 g5 h2 d5 h4 f6 h3 c5 b4 c6 e4+ Kg4 b3 f4 e3 c7 e2 f5 e1N Ne2 Ba6 c8N Nc2 Bg2 Bg7 Ng3 Ra7 Re1 h1R Nd2 h2 Bb2 Bc4 Ndf1 Qa5 Re2 Na6 Be5 Na3 g6+ Kf8 f7 Qc3 Bc7 Nb1 d6 Nc5 Bc6 Rg1 Bb7 h1R Nh2 Rc1 Ba6 Be5 Bb7 Kg7 f8B+ Kf6 g7 Kf7 f6 Rhe1 Rd2 Be6+ Nf5 Re3 Re2 Na4 Be7 Bg3 Bf8 Ne7 g8N Ng6 Nge7 Nh4 Bg7 Rf1 Ng6 Re8 Nf8 Nf3 Bh8 Nfd2 Ng6 Kg8 f7+ Kh7 f8B Kg8 Bfg7 Rff3 Be5 Na3 Rd1 a1B Nf8 Bb2 Ra1 Nab1 Beg7 Qd3 Ra3 Bf6 Ba5 Qc3 Bc7 Bd8 Bd4 Bf6 Be5
rNq4N/4Rq1p/n2NB1Pb/rr1kBq2/3B4/4R2q/p2n4/K1B2Nqn b - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 bxa4 e5 g5 e6 fxe6 Bd2 e5 Bc1 e4 g4 Ba6 f5 Bb7 Qf3 Ba6 Qf4 gxf4 g5 Be2 h3 Bg4 hxg4 Qa5+ Kf2 Qb6 Ke1 Qd8 Kd1 Kf7 b4 d5 c4 e5 Kc2 a5 Kb2 e3 b5 a3+ Ka2 d3 b6 d2 c5 d1N b7 e4 c6 e2 f6 Ke6 g6 e1Q c7 e3 c8N f3 g7 e2 g5 d4 f7 d3 g6 f2 Bf4 d2 Bg5 a4 Nf3 Na6 b8B Nf6 g8N Bh6 f8B Kd5 Rh5 Ne4 Bh3 f1Q Ne5 Qf5 Nc6 Qh1 Nd6 e1Q Bg7 Qeg1 Bd4 Ndf2 Rh4 d1R Nd2 Rb1 Nf1 Qdc8 Bc1 Nd2 Re4 Rb5 Re7 Qf7 Bf5 Qh3 Bd7 Nh1 Rb1 Qff5 Ka1 a2 Rb3 Qf7 Ra3 Qgf2 Rae3 Q2f5 Ne4 Ra5 Bbe5 Rb8 Nd6 Rbb5 Nb8 Bg5 Nc6 Q7e6 Bcb2 Qc7 Nh6 Ra8 Nhf7 Qc8 Ba3 Bh6 Nh8 Qef7 Ng3 Rbb8 Bb4 Rbb5 Kb2 a3+ Kc3 Nc4 Nb8 a1Q+ Kb3 Qe1 Ka2 Qf3 Bd2 Qg1 Nf1 Qf3f5 Ka1 a2 Bc1 Nd2 Be6+
nn5r/1BR1k3/2b1pq2/B2Bp1Nb/N3B1qn/1K2P3/1p3nNR/2q3Nr b - - 0 1 legal: proof: h4 a5 b4 axb4 d4 c5 h5 cxd4 a3 b3 h6 b2 Rh4 gxh6 Rh2 h5 Rh1 h4 Nh3 b5 Nd2 b4 Ng1 f6 Nb1 b3 Qd2 Bh6 Qa5 Bg5 Qe5 Bd2+ Kd1 Bb4 axb4 fxe5 Kd2 Bb7 Ke1 Bc8 Kd1 h5 c4 d5 f4 d3 g4 h3 g5 d4 c5 d2 b5 h2 b6 h4 e3 h3 c6 Qd5 c7 Qb5 g6 Qc6 f5 Qf6 b7 Nd7 b8N Nb6 g7 Bd7 c8B Bc6 Na3 b1N Na6 b2 Kc2 d3+ Kb3 d1B+ Nc2 d2 Bd3 Bh5 Bb7 d1Q Be4 Qg4 Nc5 Rb8 Ne1 Na8 Ng2 Nd2+ Kc3 Nf3 Na4 Rh7 Kb3 Nh4 Bd2 Kd8 Rc1 e6 Ba5+ Ke8 Bd5 Ne7 g8B Kd7 Rc2 Rh6 Bh7 Rh8 Ne2 Ke8 Rhc1 h1N Ng1 h2 Rf2 Qfg5 f6 Q5f4 Rd2 Nf2 Bhe4 h1Q f7+ Kd7 Rc5 Qf6 f8N+ Kd6 Nh7 Kd7 Ne2 Qc1 Ng5 Bb5 Rd1 Bf7 Ng3 Nc6 Bb4 Nf3 Rh1 Nb8 Ne2 Ke7 Ng1 Rh3 Ba5 Bh5 Rc8 Rh4 Rh3 Bc6 Rg3 Rh2 Rh3 Rh1 Rh2 Nh4 Rc7+
5RRb/N7/P4qbn/KB2k1r1/2Nq4/N1pn2Rp/2N1qp2/Rr1B1n1q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 cxd5 e5 h5 exf4 g4 h6 Qb3 Ke7 Qh3 Kd7 Qh4 Ke8 Bb2 Bd6 Bf6 gxh4 g5 Be7 g6 Bf8 Bg5 hxg5 e4 Kd7 d4 Kd6 Kd2 f5 a4 b5 h6 c5 h7 b3 Kc3 b2 a5 f3 a6 b4+ Kc4 f2 Kb5 c4 g7 h3 Ra5 f4 Ra2 g4 Ra3 b3 Be2 f1N Nf3 g3 Ne5 g2 Bd1 Nh6 g8R Qf6 Ka5 g1Q Ra1 f3 Na3 Qf2 Rhg1 b1Q R1g3 Bg7 Rf8 Rg8 h8R c3 Nec4+ Kc7 e5 b2 e6 Qbc2 e7 b1Q e8B Bf5 Bb5 Nd7 Re8 Nc5 Rf8 Qc6 d6+ Kd7 d5 Qce2 Rb8 Nd3 Re8 Be5 Rf8 Rg5 Rhg8 Re8 Nd2 Qd4 Ndc4 Kd8 d7 Ke7 d8N f2 Ne6 Rb8 d6+ Kd7 Ng7 Bg6 Nf5 Ke6 d7 Bh8 Nfe3 Qcf3 Nec2 Qff6 d8N+ Kf5 Nc6 Qc1 Ba4 Rb1 Bb5 Ke4 Nb6 Kf4 Na7 Ke5 Ra2 Qcf4 Ra1 Qfe4 Bd7 Qed5+ Bb5 Qh1 Nbc4+
Rq1R1Nb1/2pN3n/1R3Pp1/r4b1p/1KRNp1pk/B6b/bN2nr2/3B4 b - - 0 1 illegal: No proof kernel
2NNB1bn/1qr2Nn1/np1Rprn1/B2BPN2/n1BqRp2/1k4b1/6K1/3r4 b - - 0 1 illegal: No possible last move
1b2k1BN/1p2NpK1/2R2B2/5b1B/3r1b1q/1P1r1r1r/qB2pn2/1Rr2NnN b - - 0 1 illegal: No proof kernel
1RNN3n/p4r2/1Rnr1N1R/pB2bp2/n1n1q1b1/2kr1PBR/nN4K1/4r3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 a5 gxh4 a6 bxa6 Bf4 e5 Bd2 e4 Bc1 a5 Qd3 exd3 c4 Ke7 g4 Kd6 b4 Ke5 e4 h5 g5 d5 c5 h3 g6 d2+ Ke2 d1N Kf3 h2 c6 d3 b5 Kd4 e5 h4 b6 h3 e6 d2 c7 Nc6 g7 Qe7 b7 Ne3 b8R d1N Ba6 Nh6 g8N Nc4 Rb5 Nc3 Rb4 Na4 Rb7 Bg7 Bd2 Rh7 Rb2 Be5 Nc3 f6 Rb7 Nf7 Bh6 Nh8 Ra3 Rf7 Bf4 Bd7 Bg3 Rd8 c8N Kd3 Rb4 d4 Rb6 Kc2 Rab3 d3 Nd1 d2 Nb2 d1N Re3 Ndc3 Bb5 Na2 Ne2 Qb4 e7 Bg4+ Ke4 Kd2 e8R Rd3 Nf4 Kc3 Ne6 Qe7 Nd8 Qb7 Rb1 h1R Re6 h2 Rf3 Rd1 Re3 Bh3 Kf3 f5 Rh6 h1R Nf6 Bg4+ Kg2 Rhe1 Rf3 Kc2 Re3 Rd6 Rb3 R1d3 f3 Qe7 Rb4 Kc3 Ra1 Ree3 Rah1 Re1 R1h3 Qe6 Rb8 Qd5 Ba6 Qd4 R4b6 Qe4 Bb5
Kn4N1/pB1qp3/2bbBN2/P1B1b1p1/5bqN/RRn2r1p/3r3n/3k1BN1 b - - 0 1 illegal: No proof kernel
R2rB3/Bpqr3p/b1p2BNn/1R2NN2/n1Nb2bP/2r5/3p2Kb/qk5B b - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 g5 e5 g6 fxg6 d5 g5 Qd3 g4 Qd4 exd4 f4 Kf7 Kf2 Kf6 h4 Kf5 a4 Ke4 d6 g5 e3 c3 f5 g3+ Kg2 b3 d7 c2 f6 b2 f7 c6 a5 d3 a6 g4 a7 d2 Na3 b1B Rh3 Bc5 f8N Bd4 Ne2 Kd3 e4 Nh6 e5 Na6 e6 Qc7 d8B Nc5 e7 Na4 Bb2 c1R e8B Rc3 Nc4 Kc2 Bf6 Ba2 Ne5 Bc4 Rh1 Ba6 Nfg6 Bd7 Rh3 Rd8 a8N Be6 Rb1 Rd7 Nb6 Rf8 Ra1 Rh8 Ra3 Kb1 Nbc4 Rg8 Rb3 Rf8 Rb5 Rg8 Kh1 g2+ Kh2 g1B+ Kg2 Bf5 Ng3 Bh2 Be2 Be6 Nf5 g3 Bf3 Rh8 Be7 Rg8 Bc5 Rf8 Ba7 Rg8 Kf1 Rh8 Bh1 g2+ Ke2 g1Q Rf3 Qg3 Kf1 Qe1+ Kg2 Rg8 Ne7 Qc1 Rf8 Bg4 Nf5 Qe1 Bf7 Qd1 Ra8 Rgd8 Be8 Qc1 Ba3+ Qb2 Bb4 Qa1 Be7+ Kc2 Bf6 Kc1 Rc5 Kb1 Rb5+
Kn4nR/1B4Bb/N4N1b/qkp3p1/R2N2Pp/p4rp1/4r2N/2n1RqRr b - - 0 1 illegal: No proof kernel
2N3B1/2qqPrQ1/3r3Q/Q1r2r1b/k3n1bn/4Rq1b/r3N1N1/Q1b3QK b - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 axb5 e5 g4 exf4 d4 cxd4 Ra6 f3 Bf4 gxf4 g5 Qc7 Rf6 Qd8 g6 h6 Rf5 Qf6 Rc5 Qd8 Rg5 hxg5 Kf2 d5 h4 Kd7 e4 a5 c4 f5 e5 d3 c5 d4 h5 g4 h6 d2 g7 a4 b6 Kc6 e6 d3 h7 Kb5 e7 a3 b7 a2 c6 a1Q c7 Qf6 Rh3 Qd7 Qb3 d1B Be2 g3+ Kf1 f2 Kg2 f1B+ Kh1 f3 Rh6 f2 Qa3 f4 Rg6 f3 Nd2 g2+ Kh2 Nc6 b8N Nd4 Nc4 d2 Rg3 Nf5 Qa1 Ra2 Ne3+ Ka4 b5 Nh4 b6 Qfc6 b7 Nf6 g8Q Ne4 Qg5 Bh6 Bc4 Rd8 Ne2 g1R h8Q Bh3 Qhg7 f1R Ng2 f2 Re3 Rf8 Q5e5 Rf5 Bg8 Qb6 Nc6 Rf7 Ned4 Bh5 b8Q d1R Ne2 Rd6 Na7 Rc1 Qc5 f1Q Qa8 Qf3 Qcg5 Rcc6 Q5g6 Bg5 Q6h6 Rc5 Qd5 Rf1 Qd2 Bb7 c8Q Qbc7 Qcf8 Bd5 Nc8 Bde6 Qdc3 Rf2 Kh1 Beg4 Qd8 Bf4 Qce1 Bg5 Qg1 Rf1 Rc3 Bc1 Rb3 Rfd1 Re3 R1d5 Na7 Rdf5 Nc8 Qb8 Qb6 Qbc7 Qa5+
qkNK4/bb2n1QP/3n1Bq1/1q3b2/nn1N4/Q1r1Q1r1/rN5Q/q2Q3R b - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 a3 h5 Bh3 g6 g5 b5 Bg4 hxg4 a4 f3 axb5 Rh7 Ra6 Rh4 Rf6 Rh8 Rf5 gxf5 Be3 f4 Bd2 Rh3 Bc1 Rh8 Kd2 d5 Kd3 Kd7 h4 Kc7 e4 a5 c4 f5 e5 g3 h5 g2 g6 a4 e6 a3 h6 a2 h7 a1Q g7 f2 c5 f1Q+ Qe2 f3 c6 f2 e7 f4 e8Q f3 Qe3 Ne7 g8N Bf5+ Qe4 Na6 b6+ Kb8 b5 Nb4+ Kd2 d3 Ke3 d4+ Kf4 d2 Kg5 d1N Kf6 d3+ Nc3 d2 b7 Ra2 Bb2 Qe1 Q4e3 f1N Na4 f2 Nf3 g1R Nd4 Nc3 Qd1 Rg3 Kf7 Qd6 Ke8 Qg6+ Kd8 Bg7 Ne6 Bd4 c7+ Ka7 c8Q Bc5 Qg5 Qe4 Qd7 Ne3 Nd4 Nc4 Qe3 f1Q Qc7 Nd6 b6+ Ka6 b8Q Qb5 b7 Ba7 Qa8 Qec6 Qdf3 d1B b8Q Qe4 Qf1 Bf3 Qd1 Qed5 Nb6 Bg2 Nc4 Na4 Bc3 Qe4 Nb2 Qf3 Qd5 Qe4 Q5b3 Qa8 Qa3 Bb7 Qd7 Nec8 Qf7 Ne7 Qg7 Ne8 Nf6 Nd6+ Ne8 Rg8 Nf3 Rf8 Bf6 Rg8 Nd4 Rf3 Qeg1 Rc3 Qe3 Ne4 Rf1 Kb6 Qgh6 Qf7 Qf8 Rg4 Nd6 Qg6 Rh1 Rg1 Nf3+ Kc6 Nc8 Rg4 Qg3 Nd6 Qh2 Rg3 Bh4 Ba6 Bf6 Kb7 Qg8 Kb8 Qg7 Bb7 Nd4
1kb1n2K/r2q2r1/3Qqb1N/1p1Q4/1n3q2/bQ1B1b1N/3Pn3/QQR1Nr2 b - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 exf4 a4 d5 cxd5 g6 Ra3 g5 Rd3 h6 Rd4 f3 Rf4 Qd6 Bb2 Qd7 Bf6 gxf4 g5 Qe7 g6 Qd8 Bg5 hxg5 Kf2 Kd7 e4 c5 h4 Kc7 g7 f5 h5 b5 h6 c4 e5 g4 h7 b3 a5 g3+ Ke1 g2 Kf2 b2 a6 c3 e6 c2 e7 c1B e8Q Qd7 a7 Ba3 Nc3 b1Q Qc2 Qa2 Na4+ Nc6 Qe3 Bcb2 Nh3 g1N Bd3 Ne2 Nc5 Nf6 g8N Nb4 Nh6 Ne8 Rc1 Bf6 Qb1 Rg8 h8Q Rg7 Qg8 Qb3 Qd4 Qc4 Qda1 Qe4 Qf7 Qe6 Qg8 Rb8 a8Q Rb7 Qa4 Kb8 d6 Rc7 Qab3 Ra7 Kf1 f2 Qd5 Ng3+ Kg2 f1B+ Kf3 Ne2 Qdb3 Qc4 Qd5 Bg2+ Kf2 f3 Ke3 Qb7 d7 f2 d8Q f1Q Qb6 Bf3 Qbd6+ Qc7 Be4 Qe1 Nd3 Qg3 Ne1 Qf4+ Kf2 Qc6 Bc2 Qd7 Bd3 Qc4 Ke3 f4+ Kf2 Bg4 Kg2 f3+ Kf2 Qcc6 Ke3 f2 Ke4 f1R Ng1 Bg5 Ke5 Bf3 Nh3 Qb6 Qe6 Bf6+ Kf5 Rh7 Kg6 Qe3 Qed5 Qee6 Nf7 Rg7+ Kh6 Rg8 Kh7 Rg7+ Kh8 Bg2 Qa6 Qf4 Nh6 Bf3 Qad6+
1rq1qb1k/2q2nb1/n4bnp/3QQQP1/b2K3Q/4Q3/rNRR3R/r4B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Bd2 cxd4 Be3 h4 Nc3 Ne7 Bd2 Na6 Ne4 Rg8 Bb4 Nc5 Ng3 hxg3 h4 Na6 h5 Rh8 h6 Nb8 h7 Ng8 Be7 Qc7 Bg5 Qd8 Bh6 gxh6 Kd2 Bg7 Kd3 Kf8 b4 d5 c4 a5 e4 f5 c5 f3 e5 f2 e6 f4 c6 g2 b6 f3 b5 a4 g5 a3 c7 a2 b7 Ne7 b6 Bd7 Nh3 g1B Be2 f1Q c8Q f2 Qd2 Qc1 Qdc2 f1Q Q2c4 Qf7 Qa4 Qc7 Re1 a1B Qd1 Ra2 Qc2 Ba4 Nf2 Rg8 Rc1 Na6 h8R Ng6 Qc4 Bh2 Bg4 Bd6 Rc2 Bc5 b8Q Qf5+ Kd2 d3 Qbb7 Baf6 Rh2 d4 Bh3 Qg4 Nd1 Bb4+ Kc1 d2+ Kb1 d3 Bf1 Qe2 Qh4 Ba3 e7+ Kf7 Nc3 d1N Qf5 Nb2 Nd1 d2 Qbe4 Qe1 b7 Nc4 Qg2 Nd6 b8Q Qc5 Qb6 Qcc7 Qa7 Qe6 Qe3 Qdd7 Qb7 Rb8 Rd8 Qdc8 Rd7 Kg8 e8Q+ Kh7 Rd8 Qg8 Q8e5 Nf7 Rd4 Bb4 Qbd5 Kh8 Rd3 Qge8 Rd4 Ra3 Kb2 Bbe7+ Qdb3 Bc5 Kc3 Ra2 Nb2 d1R Qbd5 Rda1 Rdd2 Bcf8+ Kd4
n1K1bb1r/5r2/3r3k/2n1Q1QN/1Q2QPn1/2B1n1QR/1rnp1bq1/2N2N2 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 f4 h5 b4 g4 Ra3 Kf7 Rf3 Ke8 g3 Nc6 Bh3 gxf3 g4 Nb8 g5 Qa5 Be6 Qd8 Bg4 hxg4 Kf2 Kf7 Kg3 Kg6 c4 a5 h4 e5 c5 d5 c6 e3 b6 a4 b5 d3 c7 d2 b7 a3 b6 f2 Qa4 d1R Bb2 f1N+ Kg2 d4 Nd2 e2 Qc2+ e4 Qc5 e1B Bc3 a2 Rh3 a1N Ne2 d3 Nc1 Na6 b8Q e3 b7 g3 Kf3 e2 Ke4 g2 Ke5 Ra7 Qa8 g1R b8Q Rg2 Qbb4 Bd7 c8Q Be8 Ke6 Ne3 Nf1 Bf2 h5+ Kh7 g6+ Kh6 g7 e1N Qcb8 Nac2 Qae4 Nf6 Qbe5 Qa8 Qcb5 Rf7 g8N+ Kg7 Qb5c5 Rd2 Qe7 Nc7+ Kd6 Rg6 h6+ Kh7 Qg5 Qb7 Qeg2 Na8 Q2g3 Qg2 Qe4 Nb6 Kc7 Nfg4 Qb4 Na8+ Kc8 Rd6 Qee5 Na3 Qd5 Rb2 Qdf3 d2 Qfe4+ Nf5 Q5h4 Nac2 Nf6+ Kg6 h7 Nd3 Nh5 Kh6 Qhe7 Nfe3 Qeh4 Nc5 Qhe7 Rg8 h8Q+ Rh7 Qhe5 Rgh8 Qeh4 Rf7 Qhg5#
3r2nQ/r2RQ1pr/Qb2nQ2/NK4Q1/n3k1b1/r1rR1n2/2RP2q1/1bB5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 dxc4 f5 e6 f6 Ba3 Nh3 Be7 Ng1 Bf8 e4 Qd4 e5 Qd6 Bd3 Qd8 Bf5 Kd7 Nc3 Ne7 Nce2 Ng8 Nf4 exf5 e6+ Ke8 e7 Kd7 Ne6 fxe6 Ke2 Kd6 e8Q Ke5 b4 c5 h4 a5 f7 g3 h5 g2 b6 f4 b7 f3+ Ke3 a4 b5 a3 b6 c3 h6 a2 h7 c2 Rh5+ Qg5+ Kd3 c4+ Kc3 f2 Ba3 f1B Qg4 c1R+ Kb2 c3+ Kb3 c2 Qe7 Nd7 Kb4 Bd3 b8R Nc5 b7 Na4 Rh2 Ra7 Rb1 a1R Qh5 Ke4 Qd1 e5 Bb2 Bg4 Rh3 Ra3 Nf3 g1N Nd4 Ne2 Rd8 Nf4 b8Q Ne6 Qg1 Rd1 Qb6 c1R Qb5 Rcc3 Rc1 Bb1 Qa6 Qg6 Qg3 Rh1 Kb5 Rh2 Qf6 Bc5 f8Q Bb6 Rd7 Be2+ Kb4 Ne7 Rc7 Kd5 Qg1 e4 Qg4 e3 Nc6 Rg8 Qgh4 Qg2 h8Q Bg4 Rd7+ Ke4 Qhg5 e2 Rc2 e1N Rhd3 Nf3 Na5 Rh7 Q8f7 Rd8 Kb5 Ng8 Bc1 Nh6 Qff8 Ng8 Q8e7
1n1b2N1/1q3Rnr/P1k1R2R/n6r/pR5n/R2rQ3/n1qpQK1B/1bQ5 b - - 0 1 legal: proof: e4 a5 h4 g5 d4 gxh4 d5 f5 exf5 c6 Be2 cxd5 Bf1 d4 b4 a4 Bc4 Ra6 Bd5 Ra8 Bb3 axb3 a4 b5 a5 Ba6 Nc3 Bc8 Na4 bxa4 g4 e5 c4 d5 f4 Kd7 b5 h5 f6 e4 b6 d3 g5 h3 b7 h2 f7 h4 g6 d4 f5 b2 f6 b1N a6 d2+ Kf1 h3 c5 e3 g7 d3 Qg4+ Kc6 Qb4 d1R+ Qe1 e2+ Kf2 Be7 f8R Nc3 f7 Qc7 Nf3 Na2 Nh4 Rh7 Nf5 Bd8 Ba3 Ne7 Nh6 Bf5 g8Q d2 Qf1 e1N Qg3 Nf3 Re8 Nh4 f8R Bb1 Ng8 Re1 Qf4 Re5 Qe3 Reh5 Qfe2 Qc8 Rf7 Ra7 Rc1 h1Q Bb4 Qe4 Rh1 h2 Ba3 Qc2 Bb4 Nd7 b8R Rb7 Ba3 Rb3 Rb5 Qb7 Rb4 Kc7 c6 Nb8 Qb6+ Kd6 c7+ Nec6 c8Q Rd3 Qbe3 Na5 Qc3 Kd5 Qb2 Kc6 Qc1 Qc3 Bb2 Qc4 Be5 Qc2 Bd6 Bc7 Re6 Bd8 Re1 h1N+ Kf1 Ng2 Rh6 Ng3+ Kg1 Nh4 Kf2 Nc3 Ra3 Na2 Rg1 Ngf5 Rgg6 Ng7 Rgf6 Qc8 Re6 Qb7 Bh2+
2bQ4/2Nq3Q/r1n5/prPRrpQ1/Q4KQp/b3r1NB/r1k4n/N6q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 h6 b4 Ne7 Rh4 Ng8 Be3 Qf6 Bf2 Qb6 Rh1 Qa5 Bh4 Qd8 Ra3 Rh7 Rg3 gxh4 g5 Rh8 g6 Qg5 Rg2 Qd8 Rg5 hxg5 Kd2 Ke7 c4 Kf6 e4 Ke5 g7 d5 h6 a5 b6 f5 b5 d3 b7 Kd4 b6 g4 e5 f3 h7 f2 e6 g3 e7 g2 e8Q Nf6 g8N Qd7 Qeh5 Ra6 Qa4 Ng4 Ne7 Nh2 Qg5 Nc6 b8Q Ke4 b7 d4 Nd5 Ba3 c5 Re8 h8Q Re5 Ne2 g1Q Bh3 f1R Qhg8 Rf3 Qh7 Re3 Nc7 Qg2 Rd1 Qf3 Ke1 Qh1+ Kf2 d2 Ng3+ Kd3 Qa8 Qd6 b8Q Qd7 Re1 d1R Nd2 Rc1 Qbb4 Ra1 Nb3 Kc2 Rd1 d3 Qbg4 d2 Qb8 Bb7 Qbd8 Ra2 Rb1 d1R Ra1 Rd6 Rd1 Bc8 Rd5 Re1 Ne4 Rb1 Ke3 Rde6 Kf4 Re8 Ng3 Re3 Qgh6 R8e5 Qhg5 Kc3 Na1 Rb5 Nb3 Kc2 Na1+
3nKRr1/5n2/8/1nq2p1b/1p1R2Q1/1NR1PpbQ/1qRR1nk1/1Q1Brb2 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 g3 Nc3 exf6 Nb1 f5 Qb3 f4 Qa4+ Nc6 Qd1 Nb8 Bb2 h5 Bd4 Qd6 Bf2 Qd7 Qa4 gxf2+ Kd1 Ne7 g4 Ng8 Kc1 Nc6 Qc2 Nb8 Qd1 Qd8 g5 Qf6 Na3 Qf5 Nc4 Qd7 Ne5 Qd8 Ng4 hxg4 Kb2 Kd7 Kb3 Kd6 Kc4 Ke5 Kb5 Ke4 d4 c5 a4 f5 h4 g3 d6 b6 a5 c4 g6 f3 h5 g2 g7 c3 a6 b3 a7 c2 d5 c1Q d7 b2 d6 b1N e3 Qdc7 d8R Be6 h6 Bf7 h7 Nc6 d7 Nh6 g8Q Bh5 Ne2 g1N Rh2 Nf7 Ra3 Bd6 Rc3 Nh3 Nd4 Bg3 Be2 f1B Nb3 Qb2 Qe1 Rb8 a8R Nf2 Rf8 Rb7 Ra2 Ncd8 Qg7 Rg8 h8Q Qd6 Qg5 Rc7 Ra4+ Rc4 Bd1 Rd4+ Rac4 Qc7 Rc2 Kd3 Qg4 Qd6 Rc8 Ra4 Qf6 Ra1 Qfh4 Na3+ Ka6 Ne6 Kb7 b5 d8R b4 R8c4 Rc1 Kc8 Nb5 Rd7 Qdd4 Rd6 Ra1 Kd7 Ned8 Ke8 Qd5 Rdc6 Qc5 Rd6+ Nd4 Rd7 Nh1 Rhg2 Bf4 Qd2+ Ke4 Be2 Re1 R4c3 Nb5 Qg6 Qa1 Qc1 Qb2 Qh2 Bg3 Qg4+ Ke5 Bd1 Kf6 Rgd2 Nf2 Qgh3 Kg6 Qb1 Kg5 Qh1 Bh2 Q3g2+ Kh4 Qg7 Kh3 R7d4 Nc6 Qg5 Ncd8 Qhg1 Bd6 Q1g4+ Kh2 Qf6 Bg3 Qfh4+ Kg2 Qhh3+
B1R1RQ2/3nrq2/3KQp2/n3N2k/nQ2q1rp/1P1R2bb/5qp1/4QnQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 h6 Nd2 Be7 Ndf3 Bf8 Nh4 Qe7 Bd2 Qd8 Ba5 Qe7 Bd8 gxh4 g5 Qf6 g6 Qb6 Bf6 Qd8 Bg5 hxg5 Kf2 d5 Kf3 a5 e4 g4+ Kg2 d3 c4 d2 h6 a4 g7 f6 h7 Kf7 e5 Kg6 c5 d4 c6 f3+ Kh2 d3 c7 a3 b3 a2 b6 f2 b7 g3+ Kg2 Qd4 Kf3 g2 e6 Bd6 e7 Bh3 c8Q Nd7 e8R Bg3 b8Q Ra7 Qb4 Ne7 g8Q+ Kh5 Rc1 a1Q Qf8 Qb1 Be2 f1N Rc3 Qf2+ Ke4+ Qf3+ Kd4 Nc6+ Kc4 Rg8 h8Q+ Kg6 Rh2 Qf2 Kd5 Na5 Bf3 Rg7 Qe1 d1N Qfc5 d2 Qhf8 Nb2 Be4+ Kh5 Nf3 Rc7 Ne5 Na4 Kd6 Rg4 Ba8 d1Q+ Rd3 Qdf3 Rh1 Qe4 Qcb6 Ra7 Qcc4 Qc1 Qe6 Qh6 Q6d4 Qhh7 Rc8 Qf7 Qdc5 Qd2 Qg1 Qf2 Re8 Nd2 Qa1 Rc7 Qh2 Nb8 Rc1 Nf1 Qg1 Re7 Rcc8 Nd7 Qae1
2QR4/1pKR1qNB/2Q3Q1/5RPn/b2qpr2/r1r2qR1/1k3pnR/1qb5 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e5 Nf3 Qf6 Ng1 Qd8 e4 f6 Nc3 Qd6 Nce2 Qd8 Nf4 Bc5 Bb2 exf4 e5 Bd6 e6 Bf8 Be5 fxe5 Ke2 Ke7 Kf3 Kf6 Ke4 c5 a4 h5 g4 c4 d4 c3 d6 b3 Kd5 c2 d7 c1R e7 e4 Kd6 f3 d5 f2 a5 h3 a6 h4 a7 b2 Ra6 b1Q Qe2 h2 Qd1 h3 Qc2 Rh4 Bc4 Nc6 Nf3 Nb4 Nd4 Bh6 e8Q Nd3 Ne6 Ne1 Ra3 Ng2 Ng7 Bd2 Qa4 Rc3 Qc6 Bc1 Rb3 Qe7+ Kc7+ Ke5 d6 Kd4 g5 Nf6 Bg8 Qf7 Bh7 Nh5 f6 Rf4 Qe6 Qd3 Qf5 Qdc4 Qg6 Kd3 Ra3 Kc2 Rb3 Qd4 Ra3 Qg8 d8R Bd7 f7 Kb2 f8R Qgd5 Rf5 Qf7 Qc5 Ba4+ d7 Re3 Qcc6 Rc3 Rd1 h1Q Rh8 h2 Rd3 Qff6 d8R Qf7+ Rd7 Qg1 Rg3 h1Q Rd8 Qgd1 Rh3 Qf3 Rh2 Rb8 a8Q Qf1 Qa7 Ra8 Qb8 Q1d3 Qc8 Qb1 Ra1 Bb3 Raa5 Ra6 Rac5 Ra3 Ra5 Ba4 Rad5 Qdf6 Rd3 Qd4 Re3 Qfd1 Reh3 Qf3 Rg3
q1b3Qn/n3Knpq/1qQ2p1B/q5R1/N5Q1/1B2p1r1/2QQr1P1/nk3B2 b - - 0 1 illegal: No proof kernel
2R4b/N1Q1PR1K/2rQq3/2nr3p/qp1Rp2B/2Q3p1/1n2Q1p1/kq1bQ3 b - - 0 1 illegal: No proof kernel
4qB1r/1q2r3/k1nb1BBr/7b/4BRQ1/1qnBKnB1/1Bb3rP/3b3N b - - 0 1 illegal: No possible last move, all moves rejected
1k4q1/1p3q2/Q1b5/1nQBPR2/K2b4/Q2r2Qq/RbBp2Bq/n4Q2 b - - 0 1 legal: proof: d4 c5 dxc5 a5 f4 e5 fxe5 Bd6 a4 Be7 b4 axb4 a5 Bd6 a6 Bf8 a7 Na6 Qd6 Rb8 Qd4 Nh6 Qd1 Ng8 axb8Q g5 Na3 bxa3 g4 h6 Bf4 gxf4 Nh3 h5 g5 Qe7 Nf2 Qd8 Ng4 hxg4 e6 f5 Kd2 d5 Kc3 g3 Kb3 g2 h4 g1Q c4 f3 e4 d4 e7 Kd7 g6 a2 g7 f2 h5 d3 h6 d2 h7 f4 Rh5 Nf6 g8B f3 Bd5 Nc7 Ka4 Qh2 c6+ Kd6 e8Q Nd7 Qb3 Bg7 Qf7 Bd4 Bg2 Qg8 Qb6 Bb2 Qa6 f1Q Qf5 Qd3 c5+ Ke7 Rc1 Nb5 c7 f2 Ra1 f1Q Qf2 Qc3 c6 Kd6 Qf7 Qcg3 Qf3 Qff2 Qa3+ Nc5+ Ka5 Bd7 c8B+ Ke7 c7 Qff7 Kb4 Be8 Bf5 Nb3 c8Q Bd4 Qcc1 Bc6 Qf1 Bb2 Bg6 Kd7 Ka4 Qg4 Qbf4 Kc8 e5 Kb8 Qfb4 Qgd7 Bc2 Bd4 Qc5 Qdc8 Rb1 a1B Rb2 Qce6 Ra2 Bab2 Rg5 Na1 Rh5 Qgg6 Rg5 Rg8 h8Q Qeh3 Qh5 Qgh7 Rf5 Rg3 Qhe2 Qhg8 Qee1 Rd3 Qg3
5qR1/pr1k4/R2Br2R/2pR1R1b/5KQn/Q3P3/br2qn1N/2R1bq2 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 exf4 h4 gxh4 e3 d5 cxd5 f3 Be2 fxe2 Kf2 Bc5 Qb3 Bf8 Qc2 e1Q+ Kf3 Qd1+ Kf2 Qg4 Nc3 Qh5 Nd1 Qxd1 d4 h5 g4 f5 b4 f4 g5 c6 g6 f3 b6 h3 Kg3 h2 d6 f2 b5 f1Q g7 Bg4 b7 Nh6 g8R Kd7 b6 Qde2 d5 Rh7 Qg6 Na6 b8R Nc5 b7 Nd3 Rc8 Nf2 b8Q h4+ Kf4 h3 Ba3 Nf5 Qb2 Rb8 Nf3 Bh5 Qg4 Re7 Bb4 Re6 Ra6 Rb7 Qa3 Nh4 Rg5 Bg7 Rf5 Bc3 Bc5 Qf8 Rc7+ Kd8 d7 Be1 Bd6 c5 Rcc6 Rb2 Rg1 h1B Nh2 Be4 Rh1 Rb7 Rcb6 Bc2 Rb1 Bb3 Rc1 Rh6 Bb8 Ke7 d8R Ba2 d6+ Ke6 Re8+ Kd7 Re5 Re6 Rd5 Kd8 d7 Ke7 Nf3 h2 d8R Rb2 Rc8 Rb7 Bd6+ Kd7 Rcc6 Rb2 Rg1 h1R Nh2 Rb7 Qf3 Rb2 Rg8 Rg1 Rcb6 Rg7 Qg4 Kd8 Rc6 Rgb7 Rc7 Ke8 Rh7 Kd8 Rhh8 Kd7 Rh6
1r1kq1rn/4p2R/1Q6/2KpbQ1b/6bR/QP1B1Q1b/Q1Rb1B1n/5r2 b - - 0 1 legal: proof: e4 a5 a4 c5 d4 cxd4 h4 f5 exf5 g5 Nc3 gxh4 Rb1 b5 axb5 a4 b3 a3 Na4 a2 c3 Rxa4 Ne2 a1B Nf4 Ra8 Ng6 Bg7 Nf8 Bxf8 Kd2 h5 Kd3 d5 f4 h3 g4 h4 g5 h2 f6 h3 b6 Rh4 f7+ Kd7 b7 Ra3 c4 Nc6 b8Q Ra4 f5 Bg7 f8Q Rg4 g6 Nf6 c5 Bc3 Qc2 Ra8 Qa2 Bd2 Qb6 Rb8 Bb2 Bh8 g7 Qe8 g8Q Nd8 Qh7 Rg8 c6+ Kd6 c7+ Kd7 Ba1 Ng4 f6 Nf7 Qe4 Bg7 Qf3 Nh8 f7 Be5 Rc1 Be1 Rc4 Bd2 Rg1 h1R Be2 Bb7 c8R Nh2 Rg7 Rf1 Rh7 Ba6 Rc7+ Kd8 Qg7 Bb7 f8Q Bc8 Q8f5 Be6 Qgg6 Bf7 Qgc6 Bh5 Qca8 Bg4 Bc3 Bh5 Q8a3 Bg4 Kc2 d3+ Kb2 Bh5 Rh4 Be1 Qh6 d2 Qff8 Ng4 Bd4 h2 Kc3 h1B Qb6 Bg2 Kb4 Nh2 Bf2 Bh3 Bd3 B5g4 Q8f5 Bh5 Qg3 d1B+ Rc3+ Bc7 Kc5 Bdg4 Rc2 Bd2 Qb7 Bcf4 Qf3 Be5 Qb6+
q2N1r2/pQ5Q/1R5K/r4pQ1/RNN1n2Q/p5qn/1P1Qrk1b/1n5r b - - 0 1 legal: proof: f4 c5 c4 b5 a4 bxa4 g3 e5 Na3 exf4 Bh3 d5 cxd5 c4 Bf5 c3 Bd3 c2 g4 f6 g5 Be6 Bc4 Qb6 Ba2 Qd8 Bb1 cxb1Q g6 Qc7 Kf1 Qa5 Ke1 Qd8 d3 h6 Bd2 Bf7 gxf7+ Kd7 Be3 Rh7 Bf2 Rh8 Bh4 Qc1 Bg5 hxg5 Rb1 Qc2 Ra1 Qb1 Kf2 Kd6 Kf3 Ke5 Kg4 Kd4 h4 Ke3 d6 f3 h5 f2 d7 f1R d4 Re1 h6 f5+ Kh5 g4 d5 g5 h7 g3 d6 g2 Nc4+ Kf2 e4 g4 e5 g3 e6 Qd3 e7 Re2 e8Q Nc6 Qe7 Na5 Qd2 Nb3 Nf3 g1N Ne1 g2 Qh4+ Qg3 Nc2 Nh3 Nb4 g1R Ra3 Bg7 f8Q Be5 Qf7 Nf6+ Kh6 Ra1 Ra2 Rf8 h8Q Ne4 Qhh7 Qb8 Qdg5 Nbd2 d8N Nb1 d7 Qb7 Rc1 Rb8 Qd5 Qa8 Qb7 Rc8 Rd1 Rc5 Rd6 Ra5 Rb6 Bb8 Ne6 Bc7 d8Q Bf4 Qd2 Bc7 Ra3 Bd6 Rc3 a3 Nd8 Bc7 Rd3 Nbc3 Na6 Rh1 Ne3 Nb1 Rd4 Bf4 Ra4 Bd6 Qhh5 Qg1 Nc4 Bh2 Nb4 Qg3 Qhh4
n3nQ1b/R2nn1Qr/1P3r2/1K2Q1n1/2RB2kp/1p2pQ2/4b2Q/Nr2Q3 b - - 0 1 legal: proof: h4 b5 c4 f5 e4 fxe4 a4 d5 cxd5 g5 b4 gxh4 Nc3 a6 a5 Qd6 Na4 Qc5 Bc4 Qb6 axb6 bxa4 Bb3 axb3 b5 Bg4 Ra4 Bh3 Ra1 Bc8 Ke2 Kd7 d4 c5 f4 e5 g4 h5 b7 h3 g5 c4 g6 h2 f5 c3 g7 c2 d6 e3 Kd3 e2 Kc4 e1N d5 h4 b6 a5 f6 a4 f7 e4 Bg5 c1N Bd8 a3 Qe2 e3 Rb1 a2 Rb2 a1R Ra2 Ncd3 Kb5 Ne5 Qf3 Rb1 Ra7 Nf6 g8Q Bg7 f8Q Na6 Ne2 Ne8 Nd4 Rh7 Bf6 Bh8 b8Q+ Bb7 Rf1 h1N Nc2 Ng3 Na1 Nf5 Qgg7+ Ne7 Rg1 Rh5 Rg4 Rh7 Rc4 Nac7+ Kb4 Ba6 Kc5 Nf7 Bd4 Ng5 Q8f4 Bb5 Qh2 Ba6 Kb4 Nd3+ Ka4 Ne5 Ka5 Nf6 Qbf8 Ne8 Q8f4 Kd8 d7 Rc8 Q4g3 Na8 Qe1 Rc6 Ka4 Bb7 Kb5 Rf6 Qg8 Nf5 Qg6 Ke7 d6+ Ke6 d8Q Nd7 Qb8 Ne7 Qg7 Be4 Qc7 Bd3 Qb8 Nf8 d7 Be2 d8Q Nd7 Qfb7 Kf5 Qbe5+ Kg4 Qdb8 Bf3 Q8c8 Be2 Qcc5 Nd5 Qcf8 Ne7 Qf3+
b1q1r1nn/Qn1b3n/Q1q5/nN4N1/1N2brPN/3R2KR/k1r4R/N1b5 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 g3 h5 Qd3 h4 Kd2 f3 Bg2 h3 Kd1 hxg2 Bf4 gxf4 Kc1 f2 Qd1 Qc7 Kd2 Qd8 h4 Ke7 e4 Ke6 Ke2 f1Q+ Kd2 d5 b4 a5 c4 f5 b6 a4 c5 d3 g4 d4 b7 f3 e5 Kd5 h5 Kc4 h6 a3 h7 f4 b5 a2 c6 f2 b6 f3 c7 Na6 b8R Bd7 c8N Ba3 b7 Nc5 Qe1 Kb3 e6 Bc1+ Kd1 d2 e7 Qc4 e8Q f1B Qg3 Bd3 Qc7 f2 Rh5 f1R+ Qe1 Rf4 Qe2 Be4 Nh3 g1N Rh4 Nf3 Na3 Ne5 Nb6 Nf7 Nd5 Qc8 Nc2 Ra6 Ng5 Rc6 Ra8 Qa4 b8N Nb7 Qa5 Rc5 Na6 Qac6 Qd3+ Rc3 Ke2 d1N Qc5 Nf2 Nac7 Nh3 Qa6 d3+ Ke1 Rc4 Nb5 d2+ Ke2 Rc3 Qca7 d1B+ Ke1 Bdf3 Rb1+ Bb2 Rd1 a1N Rd3 Bc1 Rb8 Kb2 Rh6 Nb3 Na1 Rc2 Rh5 Ng1 Rh3 N3a5 Kf1 Ka2 Rh2 Bd2 Kf2 Bc1+ Kg3 Nh3 Ra8 Ngh6 Rb8 Re8 h8N Ng8 Ng6 Nh8 Nh4 Bg2 Nf7 Ng5 Ra8 Nh7 Ng5 Q8c7 Rd8 Qc8 Rh3 Bdf5 Rd6 Bd7 Re6 Bg6 Re2 B6e4 Rf2 Bgf3 Rfh2 Bg6 Q6b6 Nd8 Ne4 Qc5 Ne3 Bh1 Ng5 Ba8 Nd5 Nb7 Qc6 Be4 Qca6 Q5c6 Nb4+
Bn1R4/1b3Pbb/2B2qnn/BBr3R1/2rQ2Qb/3Q3K/q4qr1/kr5B b - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 f5 d4 exd4 e5 g5 Nc3 gxh4 Nf3 d3 Ne4 fxe4 Nd4 cxd4 c4 Ke7 f4 Ke6 Kf2 a5 g4 h5 Kg2 d5 b4 a4 g5 e3 g6 d2 c5 d3 g7 e2 b6 e1B b5 a3 c6 d4 c7 Kd5 b7 Kc4 b6 Kc3 f5 a2 f6 h3+ Kh2 h4 f7 Ra5 e6 Qf6 e7 Nh6 g8B Bg7 e8B Bf5 c8B Rc5 Rg1 Bh7 Qa4 d1N Qd7 d2 Rg6 d3 Qe6 Nf2 Bb5 d1Q Bc6 d2 Qd6 Nd3 Rg4 Ne5 Rg3+ Qdf3 Bfb5 d1R Bd2+ Kb2 Rg5 Ng6 Qd3 Rdc1 Ba5 R1c4 Rd1 a1Q Be6 Qa2 Bed5 Q3f5 Rd2+ Ka1 Bh1 Na6 b8Q Qf3 Qe8 Nb8 b7 Q3f4+ Kg1 h2+ Kg2 Bg3 Kh3 Qf2 Bhd5 h1B Qee4 Bd6 Qg4 Be7 Re2 Bd8 Re8 Be7 Rd8 Bg2+ Kh2 h3 Be4 Qfc2 Kg3 h2 Bf3 Bh1 Kh3 Qf2 Bg2 Bd6 Bgf3 Bg3 Bg2 Bh4 Bgd5 Nd7 b8Q Be4 Qbg3 Nb8 Qd6 Bh1 Ba8 Bf3 Bdc6 h1R+ Qh2 Rb1 Qhd6 Be4 Q6d4+ Qab2 Qc2 Ne7 Bcb7 Bhf5 Rg6 Bg5 Qd6 Qa2 Bh7 Rg8 Qcd3 Bf8 Bd5 Bc8 Qf5 Bh4 Bdc6 Bb7 Rg3 Rg5 Qfe6 Bg7 Q6d4+ Rc3 Bg6 Rg4 Bh5 Bh7 Qee2 Rgg5 Bhf3 Ng6 Bh1 Rg4 Re3 Rg2 Re5 Qa3 Qeg4 Qaa2 Qdf4 Rc2 Rg5 R2c4 Qfd4+
1n3Rrn/1QRnP1N1/4NbQ1/5b2/2R1p1nQ/Qn5K/1r2Qq2/n1kq1n2 b - - 0 1 illegal: No possible last move, all moves rejected
1b1bn1NB/2Br1rNK/N2n1k2/1b1B1r1Q/3qq2N/2NQP1p1/5r2/rb6 b - - 0 1 legal: proof: f4 h5 a4 c5 d4 cxd4 h4 g5 g4 b5 axb5 gxf4 b4 e6 g5 e5 Ra3 e4 Rf3 exf3 Rh2 Qc7 Rg2 Qd8 Rg4 hxg4 Kd2 Ke7 Kd3 d5 c4 a5 c5 f5 e3 f2 g6 g3 h5 f3 c6 a4 c7 f4 g7 a3 b6 a2 b7 a1B h6 Qe8 b5 Nc6 b8B Kf6 h7 Nd8 b6 Nb7 Bb2 Bd6 Ba7 Bf5+ Kd2 Qe4 c8N Bb8 Qc2 Nd6 Be2 f1R b7 f2 Nb6 f3 Nc3 d3 Nc8 d4 Bb6 Ra5 Ba3 Bg6 Qb3 Rf5 Bc7 Re1 Qc4 f1R Ne7 f2 Bf3 Bb2 Bg2 Ra1 Bc5 Ba3 Nf3 Bb4 Nh4 Ba5 Ba3 Rfc1 Qa6 f1B Qb5 Be2 Qd7 Rcf1 Bb2 R1f2 Qb5 Kf7 Qd7 Nf6 g8N Nfe8 Qd8 Ke6 Bh1 Rf7 Nef5 Ke5 Ng7 R7f5 Ne7 Rhf8 h8Q Kf6 Qh5 Rf7 Bf3 Ba7 b8N Bh7 Na6 Bb8 Qd7 Bg6 Qa4 Bh7 Qc2 Bb6 Qb1 Bf1+ Ke1 d2+ Kd1 Bb5 Bh1 Ra5 Qd3 Ra1+ Kc2 d1R+ Kb3 Qg4 Bd5 Qe4 Kb4 Ba5+ Kc5 Bg6 Qde2 d3 Qc2 d2 Qd3 Bc4 Kc6 Bb6 Kd7 Bb5+ Kd8 Ra4 Ba1 Rd4 Bb2 Ra1 Ng8+ Ke5 Qf3 d1Q Qh5 Qa4 Qf1 Rdd1 Qd3 Qad4 Qc2 Qf4 Bh1 Rg5 Nd5 Qc3 Ne6 Ba5 Bb6 Nc4 Qb1 Rf8 Ke7 Be4 Bd8 Rgf5 Qc2 Rd4 Qce2 Bb1 Qd3 Rf6 Be4 Ncd6 Bg2 Nf7 Kf8 Bb6 Nh6 Qb4+ Kg8 Qg4+ Kh7 Qa4 Nc3 Rd7 Bd5 Qge4 Ng8 Qac4 Nd1+ Qc3 Ba3 Qb2 Bf8 Nfd6+ Bg7 Qbd4 Nc3 Ba5 Qf7 Bb6 Bh8 B6c7 Ng7 Ba5 Qh5 Rff7 Ne7 Kf6 Qhd1 Bb6 Qh5 B6a7 Ba5 Bc7 Bb6 Bd8 Bc7 Bb8 Ng8+
1R1B3n/1Q4k1/Bn4bn/1Q4B1/b2Kp1B1/b3P1n1/rR2qQqb/br1B4 b - - 0 1 legal: proof: c4 c5 a4 g5 d4 cxd4 f4 b5 Nc3 dxc3 axb5 h6 g4 gxf4 Nf3 h5 g5 Ba6 Ne5 Bc8 Ng4 hxg4 Kf2 f5 b4 Kf7 h4 e5 e3 a5 b6 d5 b7 a4 b5 a3 g6+ Kg7 b6 a2 h5 f3 c5 c2 c6 d4 c7 g3+ Ke1 e4 Kd2 f2 Bb2 c1N Kc2 f4 Qd3 f3 Bc3 g2 Kd2 g1B Rb1 a1B Qb5 Nh6 Rh2 Nd3 Ba5 Nd7 b8Q Nf4 b7 d3 Rb2 Ba3 Kc3 d2 Kd4 d1B Bh3 f1N Bg4 Kf6 g7 f2 g8B Ng6 Bb3 Kg7 Qa7 Qf8 b8B Qg8 Qab7 Nb6 Rg2 Be6 c8B+ Bf7 Bf4 Bh2 Bg5 Ng3 Rg1 Bc2 Rb1 f1Q Ba4 Qe2 Bb3 Nd7 Bad8 Rh7 Ba4 Nh8 Bb3 Bg6 Ba4 N6f7 Bb3 Nb6 h6+ Kf8 Ba4 Rg7 h7 Nh6 Bb3 Re7 Ba4 Kg7 Bb3 Bd3 Bd1 Bc2 Qa7 Ba4 Ba6 Qa2 Qb7 Rf7 Rc1 Re7 Rc8 Rc7 Rb8 Qg2 Qc8 Rc1 Qc2 Ra7 Qf2 Rb1 Qbe2 Rc7 Qb5 Rc3 Rc2 N8f7 Rc8 Kh8 Rb8 Qb2 Rc1 Qe2 Rc2 Rcb3+ Rc3 R3b2 Rc2 Ra2+ Rb2 Kg7 Qe1 Kf8 h8Q+ Ng8 Qh7 Ngh6 Qg1 Nh8 Qb7 Kg8 Qe1 Kf8 Qf2+ Kg8 Bde7+ Kg7 Bd8+
n3nQbq/QN1r3q/q1N1qRnb/PN6/8/N2k1K1N/B2br1p1/1n1N4 b - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 exf4 a4 d5 cxd5 g6 Ra3 g5 Rd3 h6 Rd4 f3 Rf4 Qd6 Bb2 Qd7 Bf6 gxf4 g5 Qe7 g6 Qd8 Bg5 hxg5 Kf2 Kd7 h4 Kd6 d4 f5 e4 c5 g7 b5 h5 c4 a5 c3 h6 b3 h7 g4 Qc1 b4 Nd2 g3+ Ke1 f2+ Ke2 g2 Nh3 b2 Rg1 b1N Qb2 f3+ Ke3 b3 Bd3 f1N+ Kf4 f2 Rh1 c2 Rh2 c1B Bb5 Nc6 Bd3 Ne3 Bc4 Be6 Kf3 Nf6 g8N f4 Nh6 Ne8 Ng4 f1Q+ Ngf2 Qe1 Nd1 Ra7 Qc3 b2 Ba2 Rg8 h8Q Nc4 Qe3 Nb6 Qg7 Ne7 e5+ Kd7 d6 Kc6 d7 Kb5 d5 Na8 d6 Ng6 Qh8 Bh6 Nc4 Bd2 Na3+ Kb4 Qf6 Qc8 d8N Rd7 Qa7 Bc4 Ne3 Kc3 e6+ Kd3 e7 Rf8 Nc6 Bg8 Nd1 Qe6 Qh8 Rf5 Qf6 Re5 Qf8 Re2 Rh1 Qd8 Rf1 Qc8 Nd8 Qc3 Nc6 Qh8 Rf2 Nc3 Rf1 b1Q Rf2 Qb7 Rf1 Nb1 Rf2 Rc7 d7 Qa6 d8N Rd7 Nd4 Qh7 Ndb5 Qc8 Rf1 Qc3 Rf2 Qch8 Nc6 Qd5+ Kg4 f3 Rf1 f2 Kg3 Nf6 e8N Qe6 Ned6 Ne8 Nb7 Nf4 Kf3 Ng6 Rg1 f1Q+ Qf2 Qe1 Qa7 Qh4 Rf1 Qhc4 N5d6 Qa6 Ndb5 Qc3 Kg3 Qcg7 Rf6 Qgh8 Kf3
R1n3rn/4knQn/5b1p/r2QRn1K/Pq1r1R2/1b3N2/RNpb4/5Q1R b - - 0 1 illegal: No possible last move, all moves rejected
4q3/rkq1R2R/1bn4R/2Q2pNq/2P1qn2/Qq1N3r/3Kp3/1R2RNrb b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Nh3 cxd4 Ng1 f5 Bd2 f4 Be3 Qc7 Bc1 Qd8 e4 e6 Be3 fxe3 f4 Be7 f5 Nc6 f6 Nb8 Be2 Ba3 Bg4 Bf8 Bf5 exf5 g4 h5 b4 d5 c4 Kd7 g5 Kc7 g6 a5 g7 h3 e5 e2 b6+ Kb7 b5 d3 e6 a4 e7 d4 e8R h2 f7 d2+ Kf2 a3 Kf3 a2 Re6 h4 Re4 h3 Re6 d3 Ke3 Qe8 Qa4 d1Q Qa3 d2 Nf3 Nf6 g8R Nc6 Ng5 Ra7 Rg6 Nh5 Rh6 Nf4 Re7+ Bd7 Re1 h1Q Qc5 Bg7 f8Q h2 Rh7 Qc1 Qa3 d1Q+ Nd2 Qdc2 Rb1 a1R Qc5 Q1d1 Nf1 Qd6 Rh6 Qc7 Rh7 Qb3+ Kd2 Kb8 b7 Bd4 Rh6 Qd5 Reh7 h1Q Qa3 Qb6 Qfc5 Qde4 Re7 Kc7 b8R Qhh5 Rb7+ Kc8 Reh7 Qc7 b6 Be6 Re7 Bd5 Reh7 Qd6 Rbe7 Qc7 b7+ Kb8 Qcb4 Bb6 Qb5 Qe6 Qbb4 Bh1 Qc5 Qe4 Nh2 Ra5 Nf1 Ka7 b8N Kb7 Nd7 Ra7 Qca5 Rg8 Q3c5 Ra3 Ne5 Rg7 Nd3 Rg6 Nf3 Rg1 Ng5 Qa2+ Nb2 Rh3 Qaa3 Qb3 Nd3
1rkN2b1/3nnBp1/1B2qQp1/b7/1Q1QBb2/1rP1Q3/3n1Qq1/2NK2nn b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 e5 g5 b5 axb5 e4 g6 hxg6 Ra3 f5 Rd3 exd3 h4 Bb7 b4 Qe7 e4 Qf6 e5 Qd8 Rh3 Ba6 Re3 Bc8 Re4 fxe4 f4 a5 b6 d5 b7 Kd7 b5 a4 b6 e3 f5 a3 f6 d2+ Ke2 a2 h5 a1N h6 Ra3 f7 Rb3 h7 Qf6 Na3 Ne7 Nb5 Qe6 Qe1 d1N Bg2 Nf2 Na7 Nh1 Be4 d3+ Kd1 d2 Qf2 d4 Ne2 Kd8 Bb2 Nd7 b8Q Rg8 Qd6 Bb7 h8Q Bd5 Nc6+ Kc8 Nc1 Bc4 Na5 Bd5 Ke2 d1N Nc6 d3+ Ke1 e2 Qh6 Nc3 Nd8 Bc4 Qdd4 Rh8 Qhe3 Rg8 Na2 Bd5 Kd2 e1B+ Kc1 Ne2+ Kd1 d2 Nc1 Bc4 c3 Ng1 Ba3 Bd5 Qf6 Bg3 Bd6 Bf4 Bc7 Qh3 e6 Qg2 Bc2 Nf5 Bd3 Bb4 f8Q Ba5 e7 Rh8 e8B Ne7 Be4 Bg8 Qc4 Rb5 Qcd4 Nb3 Qh4 Rb4 Qhf2 Rb5 Qff6 Rb4 Kc2 Rb5 Bf7 d1Q+ Kb2 Qdf3 Kc2 Qfh3 Kd1 Qe6 Bd6 Nd2 Bc5 Rb3 b7+ Kc7 Bb6+ Kb8 Bc5 Rh5 Ba3 Rhb5 Bb4 Rb6 Bc5 Ka7 b8Q+ Ka6 Nc6 Rb7 Qbd6 Rb8 Bb6 Kb7 Nd8+ Kc8 Q6b4
B2b4/1bN1P1B1/Nk2r2n/N4b1b/1qp4K/3qp2b/1N1Nn1QQ/2rnQ3 b - - 0 1 legal: proof: d4 b5 h4 d5 c4 dxc4 a4 g5 axb5 gxh4 Nh3 e6 Ng1 e5 b4 f6 g4 Bf5 e4 Bd7 d5 Bc8 Ra2 Bd6 Rd2 Bf8 Rd4 exd4 e5 f5 Rh3 Qg5 Re3 Qd8 Re4 fxe4 f4 Kd7 Kf2 c5 b6 h5 b7 Kc7 f5 a5 g5 h3 Kg3 d3 g6 c3 e6 a4 f6 a3 f7 d2 g7 c2 b5 h4+ Kg4 c4 d6+ Kb6 d7 e3 Qe1 d1B+ Qe2 a2 Nf3 a1Q Qh2 Na6 b8N Be7 f8N Qa5 Bg2 Rh6 Nh7 Qb4 Ng5 Nc5 Bb2 c1N Nd2 N5d3 Nc6 Ne2 Ne1 Ra1 Na5 Rc1 Ba8 Bb7 Ba1 Nb2 Nd3 Rg6 Kh5 Nh6 g8Q Bc2 Qg7 Nd1 Nb2 Bf5 Qc3 Bf6 Qg2 h2 e7 h1B Ne6 h3 Qc2 h2 Nc7 Be5 Kh4 Re6 Qc3 Bf3 Na6 Bh5 Nc7 Qe8 d8Q Qg6 Qh8 Bd6 Qhe5 Bh3 Qeg3 Qd3 Qe1 Be5 Qc2 Bd4 Qg6 B1f3 Qg2 h1B Qh2 Bfg4 Qg2 Kc5 b6 Bf5 b7 Kb6 b8N Bc5 Qh2 Bb7 Nba6 Bd6 Ne8 Bc7 Qg2 Bd8 Nec7 Qdc3 Qh2 Qcb3 Qe4 Q3c3 Qeg2 Qca3 Nd3 Qab3 Bg7 Q3c3 Nb2 Qca3 Nc5 Qd3 N5a6
1R3nQn/1rP3p1/BRk5/n2b1B2/1q1rpb2/q7/bR1BnQ2/nR2KR2 b - - 0 1 legal: proof: e4 e5 a4 c5 g4 h5 d4 exd4 e5 hxg4 Ra2 f5 Nd2 b5 Ne4 fxe4 axb5 d3 Ne2 Rh5 Nd4 cxd4 Ra1 Rh8 c4 d5 f4 Kd7 h4 a5 b4 g3 c5 a4 h5 g2 h6 g1N b6 a3 f5 d2+ Kf2 d3 f6 a2 b7 d4 f7 Bd6 f8Q Ra7 h7 Qb6 b5 Ne7 Qe1 d1B Qc3 d2 Qff3 d3 Rh2 Rd8 h8R Bb3 Qc4 d1Q R8h5 d2 Qg8 Ng6 e6+ Kc7 e7 Nd7 e8B Ndf8 Rd5 Be6 Bd7 Bf4 Bd3 Qd6 c6 Qa3 Re5 Kb6 c7 Nh8 Bc4 Bf7 Bf5 Rd4 Rh1 Ne2 Rb1 a1N Rf1 Ba2 Qg3 Ka5 b6+ Ka4 Qf3 Qdb3 Ba6 d1N+ Ke1 Ne3 Qf2 Nc4 Bd2 Na5 Rc5 Bd5 Rc2 Qb5 Rcb2 Qh3 b8R Qhb3 b7 Q5b4 Rd8 Qg3 Rd6 Qga3 b8R Rb7 Rc6 N5b3 Rc4 Ka5 Rcc1 Kb6 Rc5 Na5 Rb5+ Kc6 Rb6+
6Rr/nkr1B1BB/nqq2b1R/1n5q/1p6/bpnb1QK1/4P3/1BR2B1Q b - - 0 1 legal: proof: g4 g5 b4 h5 c4 e5 f4 d5 cxd5 a5 Na3 axb4 Nc4 e4 Ne3 gxf4 Nf3 exf3 g5 Be7 Ng4 hxg4 Bh3 Bc5 Bf1 Bf8 Kf2 Kd7 h4 f5 d4 b5 a4 c5 a5 Kc7 a6 b3 g6 g3+ Kg1 c4 h5 c3 h6 g2 Kh2 g1N a7 f2 h7 c2 g7 b4 d6+ Kb7 d5 f3 d7 f4 d6 Be7 Qd4 Bf6 Ra5 Na6 Bg2 f1Q Qb2 Qb6 d8Q Ne7 g8B Bf5 d7 Bd3 Qa1 Nc6 Qe5 f2 Rc5 f3 Qg3 Rc8 Bg5 c1B Bh3 Ba3 Rc1 Rc7 Bg2 Qe1 Bf1 Qc3 Qg4 Qc4 Kg3 Qf7 Rh6 Qh5 Bh3 f1Q a8B+ Ka7 Qe7 f2 d8R Nf3 Qee4 Qh1 Bf1 Nfd4 Qgf3 Nb5 Qd5 Qg6 Bb7 Qhh5 Bc8 Qe4 Bf5 Kb7 Qh1 Qee8 Qdf3 Qe4 Re8 Nca7 Rf8 Qec6 Ra8 Bfb2 Be7 Ba1 Bf7 Bf6 B7g6 Re8 h8B Rd8 Bg7 Rh8 Bg2 f1N+ Kf4 Nc3 Bh7 Ncb5 Rg8 Ng3 Bf1 Ne4 Bfg6 Nec3 Kg3 Bc4 Bc2 Bd3 Bb1
b4BR1/b1Rrqn2/1rBRp2k/7p/R2Q4/1Prr1r2/R3bQ1K/n2b2Q1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 fxe4 h5 g6 h6 Bb7 Nh3 Ba6 Ng1 Bc8 g4 Bg7 g5 Na6 Ne2 Nb8 Nf4 Bf8 Nh5 Ba6 Nd2 Bc8 Nf3 Qc7 Ne5 gxh5 g6 Qb6 g7 Qd8 Ng6 hxg6 c4 Kf7 f4 a5 Kf2 d5 Kg3 g5 c5 Kg6 b6 d3 b7 a4 b3 e6 c6 e3 c7 a3 h7 d4 f5+ Kh6 f6 d2 f7 a2 Rh4 g4 Kg2 d3 Qf3 d1B Kh2 g3+ Kh3 d2 Qe2 g2 Kg3 g1R+ Kh2 Bc5 f8R Ra6 Qc4 e2 Re4 e1R Be2 Rb6 Rg4 Rg3 Bf1 Be2 Qa6 Rd3 Rf2 Nc6 b8R Nb4 Ba3 d1B Qa7 Nc2 Bg2 Rf1 Ra4 Qe7 Bc6 Bb7 c8R Ba8 Rc7 Rc3 Rff8 Rff3 Rbd8 Bd4 Rd6 Bf2 Rb1 a1R Rb2 Ra2 Re8 Na1 Rc2 Rb2 Bc5 Rb1 Rca2 Rb2 Red8 Rd2 Bb4 Rdd3 Rb8 Nf6 g8Q Ne4 Qg1 Ng5 Rg8 Nf7 Ba3 Rb7 Qd4 Rb6 Qh4 Bc5 Qhf2 Be3 Rg7 Rd8 Rg8 Rd7 Bc5 Rb5 Bb4 Ba7 Ba3 Qf8 Bc5 Qg7 h8Q+ Qh7 Ba3 Rb6 Qhd4 Qg7 Bb4 Qf8 Bc5 Qe7 Rd5 Qd8 Bf8+ Kh7 Rd6 Qe7 Rg7+ Kh6 Rg8+
3rb2n/r1rRbpK1/N2b2N1/bQPnN3/3r1N1q/3p4/N4QR1/1q1k3R b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 Kd3 Ke7 Ke4 Kd6 Kf5 Kd5 h4 Kc4 b4 f1Q e4 a5 h5 d5+ Ke5 f3 c3 g3 h6 d3 b6 d2 b7 Kd3 h7 a4 c4 a3 b5 d4 g6 f2 g7 a2 b6 g2 Nh3 g1B Ng5 Nf6 g8R Be7 Ne6 Ra7 Qf3+ Kc2 Nc3 d1R Nf4 Bd7 Rg2 Nd5 c5 Bh2 Rb1 a1B Na2 Bc3 Rb4 d3+ Rd4 Be8 Qg3 Rg8 h8N Ra1 Nhg6 Ba5 Kf5 Qd1 e5 Nc6 b8N Rc7 e6 Ne5 b7 Qb1 Nd7 Rf8 b8N Rh8 Ne2 f1R+ Qf2 Kd1 Na6 Re1 Nef4 Rh4 Ngf8 Ng6 Ne5 Nh8 N8g6 Rg4 Rb4 Rh4 Rb7 Rg4 Nh5 Rd4 Nhf4 Nf6 Kg5 Nd5+ Kh6 Bg3 Rh5 Re2 Kg7 Rb2 Ra7 Rb8 Rb7 Qd7 Rh7 Qa4 Ra7 Rd8 Rhh2 Bd6 e7 Bh4 Rb7 Bd7 e8Q Bhe7 N2b4 Ra3 Na2 Bb5 Qc6 Qab4 Qb6 Be8 Qb5 Qe1 Qe3 Qh4 Qf2 Rcc8 Rd7 Rc7 N6b4 Bb6 Rh3 Raa7 Na6 Ba5 Rh1+
N2Qq2B/2b2kB1/nb1b1B1K/pbn1N1r1/1bQq3Q/P3B1p1/2r1p3/4B3 b - - 0 1 illegal: No possible last move
nN2n3/r5Pk/1q1npr1N/Q2N4/1N4q1/np2N3/1K4nB/1nN1rB1N b - - 0 1 legal: proof: b4 d5 d4 c5 e3 cxd4 b5 d3 b6 d2+ Ke2 axb6 Nc3 b5 Nb1 b4 a4 f5 Ra3 d4 Kf3 g6 Rb3 d3 Kf4 Bg7 Kf3 Bd4 exd4 Nf6 Ke3 Ng8 f4 Qd6 Kf2 Qf6 g4 Na6 Be2 Qg7 Kf1 Qf8 Rc3 Nb8 Rc5 Qf7 Re5 Qd5 Re4 Qd8 h3 Bd7 Rh2 Ra5 Rf2 fxe4 f5 g5 Rf3 Ra8 Rf4 gxf4 g5 Be6 Bb2 Bf7 Ba3 Bh5 Bc1 Bg4 hxg4 Kf7 Bf3 Kf8 Be2 Ke8 c4 Kf8 f6 h5 a5 b5 f7 Kg7 f8N e6 a6 e3 d5 h4 d6 f3 g6 h3 c5 f2 c6 h2 c7 h1Q c8N b3 a7 b4 g5 b2 d7 b3 Nc3 b1R Na2 Na6 Nd6 Qh7 Qe1 d1N Qa5 d2 Nc4 Nb2 Nh3 Qb6 d8N d1N Nd7 Qh4 Nc6 Rh6 Ncb4 Nc3 Nb8 Ne4 Bd3 Nc7 Ke2 f1N Nf2 Nd6 Nh1 Qe4 Bd2 Qed4 Nc1 Nf6 Bc3 Qe4 Be5 Nd2 Bh2 Qg4+ Ke1 e2 Ne3 Kg8 g7 Nfe8 Bb5 Kh7 g8N Rg6 Nh6 Rf6 Ba6 Nbc4 g6+ Kh8 g7+ Kh7 Bb5 Na3 Bc4 Ra1 Ba6 Ndb1 Bc4 Nc3 Kd2 e1N Bf1 Ng2 Kd3 Rf8 Kd2 Rf4 Kd3 Rf6 Kd2 Ncb1+ Kd3 Nd2 Kc3 Ndb1+ Kb2 Nc3 Ncd3 Re1 Nc1 Ncb1 N8c6 Rb8 a8N Rb7 Nb8 Ra7 Nf2 Qb5 Nb6 Na8 N6d5 Qb6 Nh1
bnrRN2n/6k1/qp4B1/1rbR2N1/7N/3KNpqP/n1Np2N1/n5Nq b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 c5 b4 axb4 d4 cxd4 Bf4 g5 Qd3 gxf4 g5 h6 g6 Ra4 Qg3 Ra8 Qg5 hxg5 Kd2 d5 a4 f5 e4 d3 c4 b3 g7 Kf7 h3 g4 a5 b6 c5 d4 a6 f3 c6 f2 e6+ Kf6 c7 g3 a7 b2 e5+ Kg6 e7 f4 e8N g2 e6 f3 e7 Bb7 c8N Nh6 g8N Qc7 Ng7 Nf7 e8N Rh5 Na3 Nh8 Nf5 Bc5 Ngh6 Qg3 Ng4 b1Q Be2 Qa2+ Nc2 Qa6 Ra5 Rg5 Ncd6 f1N+ Kd1 d2 Bd3 Kh7 Nc4 Be4 Nh4 Rf5 Nef6+ Kg7 Nc4e3 Bd5 Ne4 Bb7 Ne2 g1Q Ng5 Bc6 Rh2 Qh1 Neg2 Rd5 Bg6 Re5 Nce1 Bd5 Kc2 d1N Ng1 Nc3 N4e3 Na2 Rb5 Nd2 Kd3 Nb3 N1c2 Na1 Nb4 Nc6 Nbc2 Rc8 a8N Nb8 Nc7 Bc6 Nf4 Ba8 Rd2 Rf5 Nfg2 Re5 Kc4 d3 Rd1 Ba3 Kd4 Bf8 Rd5 Be7 Rd8 Rb5 Kc4 Bc5 Ne8+ Kh6 Rb1 d2 Kd3 Qe1 Rb4 Qf2 Rbd4 Qg3 Nd6 Kg7 Ne8+ Kf8 R4d5 Kg8 Nf6+ Kg7 Ne8+
b1k4n/R7/1Br1R3/5R2/p1pQq1r1/b2q1b2/PQ1bBQ1K/B2bn2Q b - - 0 1 legal: proof: e4 d5 h4 f5 exf5 g5 b4 gxh4 c4 dxc4 Qb3 c5 bxc5 a5 Nc3 a4 Nd5 Qxd5 Qd1 Qd3 Nf3 Qd8 Nd4 Qd5 Nc6 Qd7 Nd8 Qxd8 g4 Kd7 d4 b5 f4 e5 Kf2 h5 Kg2 h3+ Kg1 e4 d5 e3 f6 b4 d6 e2 f7 e1B g5 h4 f5 b3 f6 b2 g6 b1Q g7 Ne7 g8Q Na6 Bb2 Ng6 Qg7 h2+ Kg2 Be7 f8R Rg8 f7 Nb4 Qh5 Qe8 c6+ Kd8 d7 Ra6 Qd1 Nd3 Qd4 Ba3 Qc2 Kc7 d8B+ Kb8 Qe2 Bg4 c7+ Kb7 Rg1 h1B+ Kh2 Nh8 Rg2 Bh5 Rg7 Bg4 Qc2 Bd2 Qcc3 Qc2 Re1 Bd1 Ba1 Qe6 Re5 Ne1 Be2 Qd3 Qb2+ Rb6 Rh7 Rg4 Re8 Qe7 f8Q Qe6 Qff2 h3 Rf5 Bg2 Kg1 Qe5 Re6 Bc6+ Kf1 h2 Rg7 h1B Rd7 Bhg2+ Kg1 Qee3 Kh2 Bgd5 Qg2 Be4 Qh1 Bf3 Rde7 Qee4 Ref7 Ka6 Rd7 Ba8 Qf2 Qb7 c8Q Rd6 Qcc5 Qbe4 Bb6 Rc6 Rd8 Kb7 Rd7+ Kb8 Ra7 Kc8 Qcd4
QnBk1Nn1/1q3Qp1/NP1Qbr1Q/r3pr2/7N/2n4B/2B2pp1/1bK5 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 f6 f4 Na6 d4 cxd4 e4 Nb8 Ra3 Ba6 Rf3 Bb7 f5 e5 Rf4 exf4 e5 Ba6 e6 Bc8 h4 h6 g3 f3 Bg5 hxg5 Rh2 Bd6 Re2 Bf4 Re5 fxe5 gxf4 Qc7 Qc1 Qa5 Qd1 Qd8 Kd2 d5 c4 a5 h5 d3 h6 g4 c5 d4 f6 g3 c6 f2 f7+ Ke7 f8N a4 c7 a3 f5 a2 h7 a1N f6+ Ke8 f7+ Ke7 b6 Ra3 b5 Qd7 b7 Qd5 b6 Nc2 Bh3 g2 Nc3 Nb4 Nb5 Na2 Nf3 Nc3 Kc1 Ra5 Nh4 Bd7 c8B Kd8 Nc7 d2+ Kb2 d3 Na6 Qc6 Qh5 d1B Kc1 Qd5 Qg6 Bc2 Qh6 Nc6 b8Q Bb1 Qa8 Nb8 Qf4 Qb7 Qb4 Nh6 Qd6 Rg8 h8Q d2+ Kb2 d1R Qh7 Rd4 Kc1 Rh8 Qg6 Ng8 Qh6 Ne7 Nfg6 Re8 f8Q Ng8 Qf7 Rf4 Nf8 Re7 Qfh5 Ref7 e7+ Ke8 Qf3 R7f5 Qfd5 Be6 Qb3 Rg4 Qc4 Rg6 Qcf4 Kf7 e8B+ Kf6 Ba4 Kf7 Kd2 Rgf6 Bc2 Ke8 Kc1 Ne4 Qc7 Nc3 Qf7+ Kd8 Qd4+ Qd5 Qc5 Qb7 Qd6+
6k1/1ppr4/1R4n1/N2R4/1Qp1P1Qn/q1b2r2/1Np1b2Q/rRr1NR1K b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 a5 gxh5 axb4 Bb2 Nh6 Bc3 Ng8 d4 bxc3 d5 Ra3 d6 Ra8 Bg2 Qg5 Bc6 Qd5 cxd5 dxc6 Kf2 f5 Kg2 Kf7 a4 g5 h4 c2 e4 g4 h6 g3 h5 c5 d7 c4 d8R Bc5 d6 Be3 d7 Bd2 a5 Nc6 a6 Bc3 h7 Nd4 a7 Nf3 h6 Ne7 Ra6 Ng6 Rb6 Rg8 h8Q Rg7 Qd6 Rh7 Qb4 Rg7 h7 Nfh4+ Kh3 g2 Nf3 g1Q Ne1 Qd4 Kh2 f3 Rf1 f4 Kh1 f2 Nd2 f3 Nb3 Qc5 Na5 Qe3 Rg8 Qd3 d8R Bg4 Rd5 Qe3 Rgd8 Qc1 R8d6 Qa3 Qc8 Bh5 h8Q Rh7 Rg1 f1R Qg4 f2 Rdb5 Rf8 a8N Rg7 Qh6 Kg8 Rdd5 Rf3 Qhf4 Rd7 Qh2 Bh8 Ng2 Re1 Rf1 Rc1 Ne1 Bd4 Qbd6 Bf6 Rb1 Bc3 Qb4 Rff7 Qf5 Be2 Qg4 Rf8 Re6 Rf3 Nb6 Bd4 Na4 Bc3 Rg1 f1R Nb2 Re3 Rb6 Rff3 Rf1 Rd3 Na4 Rdd1 Rb2 Ra1 Rb1 Rc1 Nb2
q1n1bQ2/1bq1n1q1/2bN1r1R/7q/1KQ1N1R1/r5P1/r6N/k1bq1QRQ b - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 g3 h5 Qd3 h4 Kd2 f3 Bg2 h3 Kd1 hxg2 Bf4 gxf4 Kc1 f2 Qd1 Qc7 Kd2 Qd8 b4 Ke7 h4 Kd6 c4 Ke5 e4 f1R c5 a5 h5 d5 h6 f5 b6 f3 b7 d3 Kc3 d2 b5 f2 b6 a4 c6 a3 c7 f4 h7 f3 Nh3 g1Q Qb3 d1Q Nf4 d4+ Kc4 d3 Qa4 d2 Qa6 a2 Qa4 Ba3 Ne2 Bc1 Qa3 Ne7 Qa7 Nbc6 b8R Bb7 c8N Qc7 Nd6 Nc8 Nd4 Qg2 Nc3 N6e7+ Kb4 Rf8 h8Q+ Rf6 Rb1 a1Q Qa2 Ra3 Qc4 Rg1 Rh3 f1B Rh6 f2 Qf8 Bc6 b7 Qh5 Ra8 d1B b8Q Bf3 Ra4 Qgh1 Qa8 Rg2 Qb7 Bd3 Qba6 f1Q Qh8 Rga2 Qh7 Bb2 Re1 Qe2 Rg1 Qed1 Qh8 Bb1 Qf1 Bc1 Qac4 Qg5 Qh7 Bh5 Qh8 Bhe8 Qf8 Qhh5 Qh8 Bd5 Qh7 Qg7 Nf3+ Ke6 e5 Be4 Nh2 Bf3 Qb5 Bdc6 Nce4 Bg2 Qa6 Kd5 e6 Kd4 Qac4+ Ke3 Nc3 Kd2 Qh8 Kc2 Nce4+ Kb1 Qf8 Ng8 e7 Bb7 Nc5 Bgc6 Nce4 Bf7 e8Q Nge7 Qd7 Be8 Qde6 Qad4 Qef5 Ka1 Q5f3 Qa7 Qh1 Qa8 Ra5 Qh4 Rg5 Qhh5 Rg4
1n4n1/RnK1Qn2/1R1n1rk1/N1nR4/NQq1P2n/4Qbb1/b5N1/Rr5n b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 Kd3 f1N Kc4 a5 Kd5 f5 c4 Kf7 h4 g3 b4 f3 e4 d3 c5 d2 h5 f2 c6 f4 h6 a4 b6 g2 b5 a3 c7 f3 b7 a2 h7 Ra6 b6 Ne3+ Ke5 f1N Qc2 d1N Rh3 d5 Ne2 g1N Qc5 d4 Rh6 f2 Qd5+ Be6 c8Q d3 Qb3 d2 Ng3 Bd6+ Kd4 Nf3+ Kd3 Nc4 Nc3 N1h2 Qc5 f1N Nh5 Qc8 Na4 Nde3 Nf4 d1B Ng2 Nh4 Kd4 Ng3 g6+ Kf6 Qca3 Nhg4 g7+ Kf7 Rh5 Nge5 Qab4 Kg6 Q3a3 Bc7 Kc5 Nef5 Qe3 Nfd6 Rf5 Nef7 Rd5 Nc6 b8N Bf3 b7 N4a5 Qeb3 Nh1 Qe3 Ne8 Kb5 Bg3 Qe7 Ned6+ Kc5 Nb4+ Nc6 Qc7 b8Q Nab7+ Kd4 Rb6 Na5 Na6 Qbf8 Rb1 Qb8 Nbc5 Qb7 Nb8 Qb4 Nc8 Kc4 Nb7+ Kb5 Qc1 Rh5 Bb3 Rd5 Ncd6+ Kb6 Qf1 Kc7 Qc4+ Rc5 Ngh6 Rc6 Rf8 h8R Ng8 Rh5 Rf1 Rc1 a1N Rd5 Ba2 Re1 Nb3 Ra1 N3c5 Ra6 Rb1 Rb6 Ngh6 g8R+ Kh7 Rh8+ Kg6 Rh7 Ng8 Qe5 Ng5 Rd7 Rf6 Qe7 Ngf7 Rd8 Nc6 Ra8 Nb8 Ra7
2q2Q2/2q5/8/Q7/1PR1qR1b/2bQBBr1/bpBqrRr1/nnqk1KQ1 b - - 0 1 illegal: No possible last move, all moves rejected
N1q3B1/1n2br2/4Bp1k/1n3Q2/bBq3N1/1nnq1BN1/QK5P/3rb1rQ b - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 axb5 gxf4 g4 h5 d4 cxd4 g5 e6 Nh3 e5 Rg1 e4 Rg4 hxg4 Ra3 Qc7 Rd3 Qd8 Rf3 exf3 Kd2 a5 e4 d5 c4 d3 Kc3 a4 b6 f2 e5 g3 e6 d4+ Kb2 f3 c5 g2 g6 g1B c6 a3+ Ka1 a2 e7 f6 b7 d2 c7 d3 g7 Kf7 e8N Kg6 b5 Bd7 c8B Kh6 b6 Rh7 Kb2 a1N Kc3 Ne7 g8B Nf5 Qc2 Nc6 b8Q Nb3 b7 Rf7 Qc7 Nfd4 b8Q Nca5 Ba3 d1R Bb7 d2 Bb4 Nb5+ Kb2 Qc8 Qf5 Be7 Bc4 f1Q Be6 f2 Qcc2 Qfc4 Bf3 f1Q Nf2 Nb7 Nc3 Raa1 Qa8 Qfd3 Nc7 Be8 Nce4 Bc6 Nh1 Bf2 Neg3 Rg1 Qd1 Be1 Nf2 Bd7 Qe2 Rd1 Ng4+ Kg7 Qee4 Na3 Qa7 Rc1 Bh1 d1N+ Ka2 Nc3+ Kb2 Rd1 Na8 Bc6 Bf3 Be8 Be2 Bb5 Qh1 Bd7 Bf3 Be8 Qf2 Ba4 Qd2 Nab5 Qc1 Ne4 Qb1 Nec3 Qd5 Kg6 Qa2 Kg7 Qc5 Kg6 Qf5+ Kg7 Ne3 Kh6 Ng4+
QR1Q1r2/R1nrn1pb/1b1n4/2Rn4/2q3q1/b5QN/r4PQK/NkqN4 b - - 0 1 legal: proof: e4 e5 a4 c5 g4 h5 d4 exd4 e5 hxg4 Ra2 f5 Bg2 b5 Be4 fxe4 axb5 c4 Bd2 c3 Kf1 cxd2 Ra4 Rh4 Ra1 Rh8 Kg2 Kf7 c4 Kg6 h4 Kf5 b4 a5 b6 d5 b7 e3 b5 Ke4 b6 Kd3 h5 g3 c5 a4 c6 e2 e6 e1Q e7 a3 e8Q a2 h6 Na6 b8Q Nc7 b7 Ba3 h7 Ne7 Qg4 Kc2 Rh2 d1N Qf5+ d3 Rh3 d4 Qfd7 d2 Qh5 d3 Qd6 Bf5 Kh1 g2+ Kh2 Ne3 Rh4 d1N Qg4 d2 Rh5 Nc3 Qdg3 d1R Nd2 Qg8 Qd8 Ne3d5 b8R N3b5 Nb3 Nd6 Nh3 Rd2 Rg5 Qc1 Rh5 Qe6 Rg5 Rf8 h8Q Bh7 Rf5 Ne3 Rc5+ Qc4 Qg8 N3d5 Qg5 Nce8 c7 Kb2 c8N Nec7 Na7 Kc2 Rb1 a1B Nb5 Bd4 Ra1 Rd3 Ra2+ Kb1 Na1 Ra4 Rc6 Bb6 Rc5 Ra7 Q5g4 Bb2 Ra4 Ba3 Qh8 Rd2 Ra6 Ra2 Nc3+ Kb2 Nd1+ Kb1 Nf4 Rb7 Ra7 g1Q+ Kh3 Qgf1+ Kh2 Qfe2 Nh3 Qe6 Q4f3 Qeg4 Qfg2 Ncb5 Qc8 Rd7 Qb7 Nbc7 Qa8 Rf5 Qc8 Rf8 Qd8
n2n3R/2R1bN1Q/kn1Q4/p1KR2qb/P2N2Qn/nbbq1nN1/8/1Q3r2 b - - 0 1 legal: proof: e4 a5 c4 d5 f4 dxe4 c5 e5 c6 e3 Qh5 e4 Qe2 bxc6 Qa6 c5 Qg6 c4 Qg4 Ra6 Qh5 Re6 Qd1 Re5 fxe5 g5 g4 Bd7 d3 Be6 Bh3 Bc8 e6 Bc5 Bd2 Bf8 Bb4 h6 Bd6 h5 Bf4 gxf4 g5 Rh6 Bf5 Rh8 Bg4 hxg4 Ke2 c5 h4 f5 b4 f3+ Ke1 f2+ Ke2 f1B+ Ke1 e2 Kf2 e1N Ke3 f4+ Kf2 f3 Ke3 g3 a4 f2 h5 c3 h6 g2 g6 c2 e7 Kd7 e8N Kc6 b5+ Kb6 h7 c1B+ Qd2 c4 g7 c3 d4 c2 d5 Nh6 Kd4 e3 g8R e2 d6 Be6 d7 Nf7 Qc3 Bb2 Nf6 c1Q Ne8 Nc2+ Ke4 e1N Qg7 Na6 Nc3 Be7 Nge2 g1N Rh5 Nc7 Nd6 Ng2 Ng3 Na3 Kd4 Be2 Qg6 Ka7 b6+ Ka6 b7 f1N b8Q Na8 Qb4 Qh6 Rc1 Nfe3 Qb1 Nd5 Rgg5 Rf8 h8Q Ndb6 Rh2 Qc8 d8Q Bb3 Rd5 Qf5 Qg7 Qhg5 Rh8 Bg4 Qh7 Bh5 Qd7 Qc2 Qg4 Nd8 Qc5 Rf1 Nf7 Qcf5 Qd6 Nh4 Rc2 Bc1 Nb5 Bd2 Rc7 Ngf3+ Kc5 Bc3 Nd4 Qc2 Qa2 Qd3 Qb1
rn1NRnbq/rQ6/4Nk2/n7/Q1pRn3/1nPbN1p1/8/NqbR2KQ b - - 0 1 legal: proof: g4 g5 a4 h5 b3 b5 axb5 d6 Bg2 d5 Bf3 d4 e3 dxe3 Qe2 exf2+ Kd1 Qd6 Ba3 Qd8 Bd6 Nh6 Bf4 Ng8 Kc1 gxf4 g5 Qd4 Qf1 Qd8 Bg4 hxg4 Qd1 f3 d4 f1N h4 a5 b6 e5 b7 Ke7 b4 f5 c3 c5 b5 f4 h5 c4 b6 a4 g6 g3 g7 f2 h6 e4 d5 a3 d6+ Kf6 h7 f3 d7 a2 Nd2 e3 Nh3 e2 Qa4 Ra7 Nf4 Ne7 Nb3 Ng6 Ne6 Nd2 Rh4 f1N Rd4 f2 g8R Bc5 Re8 e1Q+ Kc2 Ba3 Rd1 Bc1 Na1 Rf8 h8N Rg8 Nf7 Nf8 Nh6 Nb3 Nf5 Nfd2 Ne3 f1B Rd5 Ne4 R5d4 Nc6 b8Q Nba5 Qb7 Nb8 Qbc6 Be2 b7 Qh1 Qd5 Qb6 d8N Qh8 Qh5 Bd7 Qh7 Bc6 Qh1 Bd5 R1d3 Bf1 Kd1 Qb1 Ke1 Be2 Rd1 Bd3 Nc7 Ra8 Nce6 Rg7 Ng5 Bg8 Nge6 Bc2 Kf1 Bd3+ Kg2 Rd7 Nb3 a1N Kg1 Na6 b8Q Rda7 Qb7 Nb8 Rd6 Nc2 Rd5 Nd4 Na1 Ndb3 Rd4
Q4bb1/b2Q1RBr/nR5B/k1pR1r1Q/6pq/2Qr1q2/rPK1B2r/1n6 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 Nf3 h6 Nc3 h5 Ne4 Qh4+ Nf2 gxf3 g4 Qf6 g5 Qd8 Ng4 hxg4 d4 Kd7 Kd2 f5 e4 a5 h4 f2 e5 a4 b6 Kc6 b7 Kb6 g6 c3+ Kd3 a3 d5 f3 d6 f4 d7 a2 e6 c2 g7 Na6 b8B Rh7 h5 Ka5 e7 Nf6 g8R Nd5 e8Q Qh4 d8Q Be6 h6 Nc3 Rg1 Nb1 Be2 f1Q Qc8 f2 Be3 c1B Qb3 f3 Rg7 Bg8 Kc2 c5 Bd4 Bf4 Qed7 Bc7 Qd3 Bb6 Rf7 Ba7 Bg7 Qg2 Re1 f1R Bf4 f2 Rd1 Qf3 Qc4 Rb8 Rd5 Rb3 Qa8 Rd3 Bg5 Rh1 Qc3+ Kb6 Bc1 f1R Bg5 Rh2 Be3 Rh8 h7 Rff2 Beh6 Rf1 Qf6+ Ka5 Qd4 Qe3 Qf6 Rf5 Qg6 Qf3 Qh5 Nc3 Rf1 a1R Rf6 Ra2 Rc6 Be6 Rb6 Nb1 Rf2 Rg8 h8Q Bf7 Qh7 Rh8 Q7g6 Rh7 Qf6 Bg8 Qe5 Qg2 Rf4 Qf3 Qe3 Rg5 Rf7 Re5 Qd4 Rf5 Qc3+
2R1R1K1/n2r2b1/5Q2/QN1p1Nb1/r1pN1rn1/n4kPq/3QR3/1b1Q1qr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 c5 exf4 d4 Qg5 e3 Bh6 Bd2 Bg7 Bc4 dxc4 d5 Bf6 d6 Be7 Bc3 Bf8 Be5 Qd8 d7+ Ke7 Bd6+ cxd6 Kd2 Kf6 Kc3 Ke5 b4 Ke4 g3 h5 b6 a5 b7 f5 b5 d5 c6 a4 c7 a3 b6 h3 Qc1 f3 Qe1 h2 Qf1 f4 Ne2 a2 Qg2 h4 Nd4 h3 Ne2 Nc6 b8Q Bg7+ Nd4 Rh4 b7 Na7 Re1 h1R Re2 h2 Na3 Nh6 Rae1 Rg1 Nb5 Qh8 d8Q h1R Qf6 Bf5 c8R Ng4 Qc7 a1B+ Kb4 Bb2 Kc5 Bc1 Kd6 Qh7 Qh2 f2 Ke7 f1N Kf7 f3 b8Q f2 Qa5 Nd2 Qb7 Qh5+ Kg8 f1Q Qbf7 Qh6 Qh5 Nb1 Qf2 Na3 Qh2 Kd3 e4 Bg5 e5 Be4 e6 Bg6 Re8 Rd8 e7 Rd7 Rc8 Bf5 e8N Be4 Ra2 Bg6 Rc1 Ke3 Ned6 Bb1 N6f5+ Ke4 Qhd2 R1h2 Nc6 Kf3 Re1 Rf2 Ree8 Re2 Qc1 Rb2 Qce1 Rb4 Rae2 Ra4 Qeb4 Rh2 Qd2 Rf2 Qh2 Qhh3 Qh1+ Qhg2 Qh5 Qh3 Ncd4+ Kg2 Nh6 Nh2 Qhg6 Ng4 Qd1 Nh2 Qgd3 Ng4 R2e3 Rf3 Nhf5 Rf4 Q3d2+ Qe2 Nb3 Qf2 Re2 Kf3 Qdd4 Qfg2 Q4d2 Qf1 N3d4+
1bqQ1Br1/rp1N3N/Q1B5/2q5/Nk2r1pr/q1bKQN2/nP3qn1/7B b - - 0 1 illegal: No proof kernel
q2k4/1rp2N2/Bq3QQ1/1n1b2p1/1pr1nB1n/b2P1b2/2Q2N2/NK1B1rQ1 b - - 0 1 illegal: No possible last move
3BQ3/2k4N/1pBpbq2/2rbQ1q1/nnQ1N1p1/1K6/B2P1n2/1b1nQ1bN b - - 0 1 legal: proof: c4 a5 f4 g5 b4 e5 c5 exf4 c6 Ra7 Qb3 b6 Qd1 Rb7 cxb7 axb4 a4 g4 h4 h6 Ra3 h5 Rf3 Rh6 g3 Rh8 Rh2 Bc5 Rg2 gxf3 g4 Bd6 g5 Bf8 Rg4 hxg4 e4 f5 g6 c5 e5 c4 g7 f2+ Ke2 f3+ Ke3 f4+ Kd4 b3 Kc3 b2 h5 Nf6 g8Q Nd5+ Kc2 c3 e6 Na6 b8Q Nc5 a5 Na4 Ba6 f1B h6 f2 h7 f3 e7 Bg2 Ne2 f1N Bc4 f2 Ba2 Nfe3+ Kb3 f1Q a6 c2 Nbc3 b1B a7 d6 a8B Kd7 e8N Bh6 Bb2 Nb4 Qc4 Bg7 Bd5 Bd4 Ng3 Qf4 Qde2 Nd1 Nh1 Bg1 Ba1 Rg8 h8Q Qdg5 Nf6+ Kd8 Bb7 Bd5 Nce4 Qfe5 Nh7 c1N+ Ka3 Qe6 Qe1 Ncd3 Kb3 N3f2 Bf6+ Kd7 Be7 Qeg6 Qa1 Q6f6 Qe5 Rg7 Bf8 Kd8 Qa8 Rc7 Be7+ Kd7 Qb8 Rc5 Qa8 Kc7 Bc6 Bf5 Qe8 Bfe6 Bd8+
2Q2R2/4qpb1/r5b1/RQn2q2/2RB2p1/KPr2Bp1/R5p1/kbBnbQ2 b - - 0 1 illegal: No proof kernel
bRBB1B1n/1R1r4/N5R1/1R3p1q/3r2n1/1K3Rn1/2R1nkPp/1nbr2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e6 e4 Nf6 e5 Ng8 Qd3 Bh6 f6 Bf8 Qf5 exf5 e6 Bc5 Nd2 Ne7 Ne4 Ng8 Ng5 Bf8 e7 Bh6 Ra6 Bf8 Ne6 fxe6 Ra1 Kf7 Kd2 Kg6 e8R Kg5 c4 Kf4 Kc2+ Kg3 b4 a5 b6 d5 b7 h5 c5 a4 c6 d3+ Kc3 d4+ Kc4 e5 f7 h3 c7 d2 b5 d1R b6 d3 Rh2 h4 Re7 e4 Bg5 d2 Rh1 h2 Bf6 e3 Be2 h3 Rc1 a3 Bc3 a2 Bb2 a1B Bd4 Nd7 b8B Bb7 c8R+ Ne5+ Kb3 Ra7 R8c7 Bh6 f8R Ng4 R7c6+ Kf2 Rce6 Qe8 Re5 Ba8 b7 Qh5 Ree8 Ne7 Bc5 Ng6 Ba6 Bd4 Nf3 e2 R8e7 e1N Ng5 Nc2 Rf6 Na3 Bc7 Rd8 b8R Nb1 Ne6 Nh8 Bc8 Rd6 Ba5 Rad7 Rc2 Bhe3 Rg1 h1N Nc7 h2 Rg6 Ng3 Na6 Bb2 Re1 Rd4 Bd8 Bc1 Rf1+ Ke2 R7e6 Nh1 Reb6 Re1 Rd5 Bg1 Rc3 d1N R6b7 Ng3 Rcf3 Ndc3 Bf8 Red1 R1f2+ Ke1 Rc2 Nce2 Rfc3 Kf1 Rdb5 Kf2 Rf3+
1rbb1RnK/1N2R1R1/qRPq4/5Rb1/3p2n1/2p1rR1B/4N2n/kb2N2b b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 c5 h4 g5 d4 gxh4 d5 d6 Qd4 Nf6 Bd2 Ng8 Bb4 cxd4 c5 Bd7 c6 Bc8 Bc5 dxc5 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kf3 a5 e4 h5 g4 h3 b4 c4 g5 a4 b6 h2 b7 a3 b5 Kc5 e5 Kb4 e6 Kb3 e7 Kb2 e8N h4 b6 a2 g6 c3 g7 h3 d6 Be7 Ne2 Nd7 b8R Ndf6 b7 Ng4 Rg1 h1B+ Bg2 h2 d7 Ra5 Na3 Re5 Raf1 a1B Nd6 Ka2 Ra8 Bb2 b8R Bc1 Nb7 Ka1 Ra5 Qf8 Re1 Bd8 Rgf1 Qd6 Rd5 Ba5 d8R Bb6 Rf8 Bd8 Ng1 Re8 Re7 Rh3+ Ke2 f3+ Kd3 f4 Ke4 f2 Ne2 f3 Rdf5 Rg3 Bh3 Bg2 Rd1 f1N Rd3 f2+ Rdf3 h1B Nc2+ Ka2 R5f7 Bg5 Ne1 Nfh2 Rf4 f1Q R4f5 N8h6 g8R Ka1 Rg7 Ng8 Ng1 Qa6 Ne2 Be6 Rc5 Ba2 Kf5 Be6+ Kg6 Bc8+ Kh7 Bf1 R3f4 Re3 Rcf5 Bfg2 Kh8 Be4 Rf3 Bb1 Na5 Re5 Rb3 Rb5 Nb7 Rb4 Ref7 Re3 Re7 Rb5 Na5 Rb7 Rb6 Rb8 Nb7
nB1Nr1Bn/BBp1k2q/qr2bnB1/4B1b1/1nP1r3/1KN2p2/R7/6nN b - - 0 1 legal: proof: b4 a5 g4 h5 d4 e5 f4 g6 b5 g5 Qd2 b6 Qb4 axb4 a4 Qe7 a5 Qd8 axb6 gxf4 g5 exd4 Ra3 Ba6 Rg3 Bc8 Rg4 hxg4 Kd1 d5 e4 f5 h4 b3 e5 b2 g6 d3 h5 d4 h6 g3 c3 f3 e6 f2 e7 f4 g7 g2 b7 d2 Kc2 d1N b6 f3 h7 d3+ Kb3 d2 Na3 b1R+ Kc2 Be6 Bb2 Na6 b8B Qd7 b7 Nh6 g8B Nf7 Nh3 g1N Bg2 f1Q Nf2 Bh6 Nb5 Bg5 Ba1 Nb2 Bh3 d1N Ba7 Na4 b8B Nb6 Rh2 Rb3 Nh1 Nf2 Bf5 Ng4 Be4 Nf6 Bb7 Rb4 Rg2 Re4 c4 Nb4+ Kb2 Qfd1 Rh2 Qa4 Nc3 Qa6 Kb3 Qd3 Bb2 Kd7 e8B+ Ke7 Rc2 Nb6d5 Bf2 Nb6 Ba1 Ra7 Ra2 Na8 Bc5+ Qad6 Be3 Ra6 Bea7 Rb6 Bb2 Nh6 Bg6 Nf7 Bc1 Qc6 Bf4 Qb5 Bg3 Qa6 Be5 Nh6 B8f7 Re8 Bg8 Nf7 h8N Nh6 Nf7 Qd7 Nd8 Nf7 Bh2 Nh8 Be5 Qd3 Ra4 Qc2+ Ka3 Qh2 Kb3 Qh7 Ra2
5N2/Nk3rq1/3bN1B1/5br1/n1PpN1R1/BK1n2Nq/nNr1q1Bp/1n6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 h6 b4 Bc5 Rh4 Bd6 Qd3 Bf8 Qg3 Ne7 Rh1 Ng8 Qh4 Bc5 Ra3 Bd6 Rg3 gxh4 g5 Bc5 g6 Bf8 Rg5 hxg5 Kd1 d5 c4 Kd7 Kc2 Kc7 e4 a5 b6+ Kb7 e5 f5 b5 a4 h6 d3+ Kc3 g4 e6 h3 g7 a3 h7 d2 e7 d1N+ Kb3 a2 e8B a1Q Na3 f3 Nc2 f4 Be3 f2 Bg2 f1N Bc1 f3 Bf4 g3 Bc7 h2 Bh3 f2 Ne1 g2 Nd3 Na6 Nb2 Qd7 Bd6 Nh6 g8N Nf7 Ne2 g1R Nf6 Ne5 Bg2 Nb4 Ne4 Ned3 Bg6 Na2 Ba3 Bd6 N2g3 Rf8 h8N Ndc3 Nf7 Na4 Nfg5 Rf7 Ne6 d4 Bh7 Qe1 Bg6 Kb8 b7 Qe2 Nf4 Ka7 b8N Kb7 b6 Qh3 Nc6 Bf5 Na7 Nd2+ Kc2 f1Q Ne6 Nb1+ Kb3 Ka6 b7 Raf8 b8N+ Kb7 Bf3 Qfg2 Nd7 Rc1 Rd1 Rc2 Rg1 Rg8 Ndf8 Rgg7 Nf1 Qg5 Nfg3 Qf6 Bg2 Rg8 Bh7 Rg5 Bg6 Qg7 Rf1 Rh5 Rf4 Rg5 Rg4
nR3B1B/k7/1B3rbp/n1r5/1bn4B/1pR3Rq/2QPB1q1/KBqbb3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 g5 fxe4 Na3 Be6 Ne2 Bg4 Ng1 Bc8 h4 Nd7 Nc2 Nb8 Nd4 Ra7 Ngf3 Na6 Nh2 Bd7 Ng4 hxg4 h5 Bc8 h6 Ra8 h7 Nb8 Nf5 Be6 Nh6 gxh6 Bh3 Bf5 Bf1 Bc8 a4 Kd7 f4 c5 d6 Kc6 f5 Kb6 a5+ Ka7 d7 b5 a6 e5 f6 b3 g6 b2 f7 b1B g7 c4 Qf3 c3 Kd1 b4 Qd3 b3 Ra5 c2+ Ke2 e3 Bg2 e4 Rh2 g3 Rh4 Bb4 f8B Nf6 g8R Nc6 Rhg4 Nd5 Ba3 c1Q Rf4 Nb6 Qd4 Qh4 d8B Qh3 Qb2 Bg4+ Rf3 Rc8 Bf1 g2 Rc5 g1Q Rc3 Na5 Bh4 Rc5 Qc2 Na8 Bb2 Bh5 Rg3 Rg8 h8B Rg6 Bd4 Rf6 Ba1 Qa3 Kd1 Qgg2 Be2 Bg4 Bb2 Qa1 Kc1 Qa3 Bf1 e2 Rfe3 e1N Be2 Nf3 Red3 Kb6 a7 Ne5 Bg1 e3 Rd8 Nec4 Rb8+ Ka6 Bf2 Nc7 a8B Ka7 Be4 Na8 Qd1 Bd3 Qc2 Bh5 Bh7 Bdg6 Kb1 Bf3 Bd3 Bd1 Be2 Qa4 Bg1 Qac6 Ka1 Qcc8 Bh5 e2 Bd4 e1B Be2 Ka6 Bg1 Rb5 Ba7 Rc5 Bb6 Qcf5 Rce3 Re6 Bh8 Bf7 Qb1 Rf6 Rg5 Qc2 Rgg3 Qc1 Bf5 Bg6 Rc3 Qc2 Qb2 Qc1+ Bb1 Nb7 Rd8 Na5 Qc2 Kb7 Rb8+ Ka6 Bd8 Ka7 Bb6+
2rqR1r1/5brQ/K1B2Bn1/3kb1R1/2R1R2P/pB4np/p1Rn2R1/2q1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 d5 cxd5 e5 Ra2 exf4 Ra1 g4 Nh3 h6 Na3 h5 Nc4 Ba6 Ne3 gxh3 g4 Bb7 g5 Bc8 Ng4 hxg4 e4 Ke7 Ke2 Kd6 Kd3 f5 Kc4 a5 Kb5 c5 b4 c4 d4 a3 e5+ Ke7 e6 Kd6 e7 g3 e8R f3 g6 a2 g7 g2 Qd3 g1R Bb2 c3 Rc1 c2 Bg2 f4 Rh2 a4 Qh7 f2 Re4 Nf6 g8B f1N Bh1 f3 Rg2 f2 Bf7 Kc7 d6+ Kd7 d5 Nh5 Bf6 Nd2 Rc4 f1Q Re1 c1R Re4 Bg7 Be6+ Ke8 d7+ Kf8 d6 a3 Bd5 Rg8 Bc6 Kf7 Rg5 Qe8 d8R Be6 d7 Ng3 Rc8 Re1 d8R Nd7 Rc7 Rb8+ Ka6 Rc8 b5 Qe7 b6 Nf8 b7 Ng6 b8R Bd5 Rf4 Ke6 Rb2 Rg2 Rf8 Qd8 Re4+ Kd6 Rfe8 Bf7 Ba4 Rg1 Bb3 Qf4 Bd4 Be5 Rcc2 Qe3 R7c4 Kd5 Bc3 Nb1 Rg2 Qc1 Rbc2 Nd2 Bb4 Rgf1 Be7 Rf4 Bf6 Rg4 Rh5 Nf4 Rf5 R4g7 Rg5 Ng6 Rf4 Ne7 Rh2+ Ke6 Bc6 Kd6 Rg2 Ng6 Bb5 Kd5 Rfe4 Rd1 Bd7 Re1 Bc6+
r2k2Rq/6QR/1Pb1bn2/1qBb1Q2/R2n4/n1r3Q1/1n1n2pR/1N4KQ b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 e5 f4 exf4 b5 b6 g3 a6 a5 Nf6 axb6 Nc6 b7 Ng8 b6 Nb8 Bh3 Ne7 Bg2 Ng8 Bd5 h5 Bb3 f5 Nc3 f3 Kd2 f2 Nh3 f4 Ng1 f3 Nb5 axb5 Be6 Bd6 Bg4 Bf4+ gxf4 hxg4 e4 f1B Ke1 g5 Kf2 d5 c4 b4 h4 g3+ Ke1 d3 h5 g2 Kf2 d2 h6 b3 e5 b2 e6 b1N c5 g4 e7 d4 c6 d3 f5 Na3 h7 Nf6 c7 Be6 c8Q Nc6 b8Q Nd4 Ne2 g1N Qbc7 Bg2 Rh2 Bh1 Nc3 g3+ Kf1 f2 Nb1 Bhd5 Qf4 Rf8 h8R Ngf3 R8h7 Rf7 Qe1 d1B Qfc7 B1b3 Bh6 d2 Bf8 d1N Kg2 Rg7 Qh1 Ba4 Q8b7 Nb2 Qe5 Ng4 f6 Bac6 Qbb8 Kd7 f7 Nf6 e8R Nd2+ Qe4 Rg4 Qf3 Re4 Qf5 Qc8 Qbf4 Re3+ Qf3 Rc3 Ra2 Nac2 Ra4 Na3 Bc5 Nd1 Rg8 Nb2 Bd6 Qe8 f8Q+ Kd8 Qg7 Qf8 Bc5 Qe8 Bf8 Qh5 Qg1 f1Q+ Kh1 Qd3 Qe1 g2+ Kg1 Qe8 Qfg3 Qa6 Kf2 Qh5 Qh1 Qb5 Kg1 Qh6 Q7g4 Qg7 Qgg6 Qh8 Q6g4 Rc4 Qg7 Rc3 Bc5+
2B4q/1KQ1R3/4Nqk1/1P1Q2b1/b1Q2N2/3pqpn1/r4nq1/1nN2rNQ b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 f4 b5 d4 cxd4 a4 e5 axb5 exf4 b6 a4 b5 Be7 Ra3 Bxa3 Bd2 Bf8 Bb4 a3 Be7 Qc7 Bd8 Qxd8 Kd2 d5 Kd3 g5 h4 f5 c4 Kf7 e4 f3 b7 f2 c5 g4 h6 g3 c6 g2 e5 f4 h5 a2 c7 a1Q h7 f3 h6 Na6 b8Q Nc5+ Kc2 Nf6 e6+ Kg6 e7 Nce4 Kb3 d3 Kb4 d2 Nc3 d4 Na2 Ng4 Nc1 Be6 c8Q Ra2 Qbc7 Ng3 Kc5 Bb3 Kb6 Ba4 e8N Qf6+ Kb7 Be7 Ng7 d3 Qb3 d1Q Ne6 Qe2 Qd5 Qe3 Rh2 Re8 h8Q Rg8 h7 Rg7 Nge2 g1Q Bh3 Qg2 Ng1 f1N Qcc4 Qab2 Q8c7 Nd2 Rh1 Nb1 Rh2 Qh1 Re2 Rg8 Re1 Qbg2 Re2 Nf2 Bg4 Qf7 Qa1 Bg5 h8N+ Kh6 Ng6 Qf6 Ngf4 Qh5 Ng7 Re8 Bc8 Re4 Nfh3 Kg6 Ne6 Qhh8 Re1 Rh4 Nhf4+ Kh6 Re2 Rh1 Ngh3 Rf1 Ng1 Qee5 Nf8 Qd4 Re7 Qe3 N8e6 Re1 Nb3 Nc3 Ngh3 Rg1 Qd1 Nb1 Nc1 Re1 Qe2 Rd1 Qf1 Re1 Qh1 Rf1 Nfe2 Kh5 Nhg1+ Kg6 N2f4+
b1Q2B1K/n1q4b/1pP1QB2/b4r2/2b2RQ1/1b1n1B1k/r2B4/2nbQN1q b - - 0 1 legal: proof: b4 c5 d4 cxd4 e4 g5 f4 f5 exf5 a5 f6 axb4 a3 Qc7 f5 Qd8 g4 Bh6 a4 Bg7 Nc3 Bf8 Nd5 h6 Nf4 gxf4 g5 h5 Ra3 Qc7 Rg3 Qd8 Rg4 hxg4 Ke2 Kf7 Kd3 e5 Ke4 d5+ Kd3 f3 h4 f2 c4 e4+ Kc2 e3 Kd3 e2 a5 e1N+ Kd2 b3 a6 b6 a7 d3 Ke3 d2 Kf4 d4 Ke5 d3 c5 g3 c6 g2 h5 b2 h6 b1B h7 Na6 Rh2 Nb4 Rh6 Ne7 Nf3 g1Q Be2 f1B Rh4 Bb7 Nh2 Na2 Bf3 Qh1 Qa4 Rg8 h8B Nc8 Qd4 Be2 Nf1 Bb4 Qd6 Rf8 Rf4 Qc7 g6+ Kg8 g7 Kh7 g8Q+ Kh6 Bg7+ Kg5 f7 Bc2 f6 Bb3 Bg4 Kh4 Bf3+ Kh3 Kf5 Bc2 Kg6 Bb3 Kh7 Bc4 Bd5 Bg4 Qe5 Bf5+ Kh8 Bh7 Bf3 Bc3 Bb2 Nc1 Qe8 d1B Ba3 Ba4 Bb4 d2 Qe2 Ned3 Qe1 d1B Ba5 Rb8 a8Q Ba2 Qa6 Bac2 Qc4 Ra8 Qd5 Bc4 Qg5 Rd8 f8Q Rd5 f7 B2b3 Bf6 Rf5 Qfe8 Ra7 Q8e6 Ba8 Qd8 Ra6 f8B Na7 Bab4 Ra2 Qdc8 Bb2 Bd2 Bc3 Qg1 Ba5 Qg4#
1n1n2kq/B1B2R2/4r2Q/rNQb1BpK/2P1qp2/1q1Q3p/8/2Qnb1bB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 h6 b4 Ne7 Rh4 Ng8 Nd2 Qa5 Ndf3 Qc7 Rh1 Qd8 Nh4 Bc5 Ra3 Bf8 Rg3 gxh4 g5 Nc6 g6 Nb8 Rg5 hxg5 Kf2 a5 Kf3 f5 e4 d5 c4 a4 b6 a3 b7 a2 g7 Kf7 b5 a1B b6 d3 e5 d4 h6 d2 h7 d3 e6+ Ke8 e7 Kf7 Bg2 h3 Ne2 Nh6 Nd4 Be6 Rf1 Ra5 Nb5 Bd4 Bh1 Bg1 g8B+ Kg7 e8Q Bb4 Qd7+ Nf7 Qe1 d1N Be3 d2 Qd3 Qe8 Bf2 Nd8 Qee3 Qg6 Qc5 Qf6 Bf7 Re8 Bg6 Bg8 Bg3 Re6 Rf2 Qe7 h8Q+ Kf8 Qh4 Bf7 Qh6+ Kg8 Rf1 Qf6 Bf2 Qh8 Bd4 Re4 Be5 Bd5 Bc7 Re6+ Qe4 Nd7 b8Q Bc3 Qa7 Nb8 Qa3 Bb4 b7 Bc3 Qc1 Bb4 Qc5 Bc3 Ke2 f3+ Kd3 f2 Ke2 Bb4 Kf3 Bc3 Kg3 Bb4 Qd3 f4+ Kg4 Bc3 Re1 f1Q Kh5 Qg2 Bf5 Qe4 Re2 Nb2 Re3 d1Q+ Re2 Qb3 Re1 Na6 b8B Nd1 Ba7 Nb8 Re2 Ra1 Ra2 Be1 Ra6 Ra4 Rd6 Ra3 Rd7 Ra5 Rf7
n2Qbr2/1PR4b/1p2Q3/1p1nK2B/1rb4R/4R1r1/2p2NQ1/kRb1qnQ1 b - - 0 1 illegal: No proof kernel
RbrB2Bn/2p1B3/r1Pn4/R1p1k1b1/2B4b/1B1Q4/2Q2bnB/K5n1 b - - 0 1 illegal: No possible last move
nQK1nRqr/Q2r4/8/4r1r1/BrQr1QRq/2Q2B1b/kn2P1Q1/2b5 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 a4 b5 axb5 d5 cxd5 Na6 b6 Qg5 b5 Qe7 Ba3 Qd8 Bb4 Nb8 g4 axb4 Ra7 f3 Ra1 g6 Nc3 g5 Nh3 h6 Nf4 gxf4 Ne4 h5 g5 Ra2 Nf2 Ra8 Ng4 hxg4 Kf2 Ke7 d4 Kd6 h4 f5 b7 c5 b6 g3+ Ke1 f2+ Kd2 c4 h5 b3 Kc3 g2 Kb4 g1Q Kb5 b2 g6 b1R+ Qb3 c3 g7 c2 h6 c1N h7 f3 Rh6+ Nf6 g8B f4 Be6 Na6 Ra4 Ne8 Rh1 Bh6 Bd7 Qh4 Bg2 Ra7 b8Q+ Rc7 b7 f1R Kb6 f2 Qa8 f3 b8Q Nd3 Qba7 Nb2 Qc4 Rfd1 Rb4 f1R Ba4 f2 Bf3 Qg6 Rg1 Qgg5 Rg4 Rg1 Rf4 f1R Rf8 Rd7 Q8b7 Rg8 h8Q Nac7 Qg7 Rh8 Qbb8 Qe7 Qg2 Qf7 Qc3 Bc1 Qc4 Ke7 d6+ Kf6 d5 Ke5 Kc6 Rd4 Qc3 Rf2 Qb5 Qg8 Qbc4 Rff1 Kb6 Na8+ Kc6 Re7 d7 Rd1 d8Q Bh3 d6 Re6 Kb7 Rd2 Qg6 Rg5 d7 Kd6 Qg7 Ree5 Kc8 R2d3 Qb5 Ke6 Qdc7 Rd1 d8Q Rd7 Re4 R1d4 Qba6+ Kd5 Qad3 Nd1 Qdd2 Rb4 Qf4 Nb2 Qcb8 Rgf5 Qg2 Rg5 Qce3 Kc4 Qe7 Rb6 Qe6+ Kb4 Qd2+ Ka3 Qc4 Rb3 Qdc3 Ka2 Qcc5 Rbb4 Q5c4+ Ka1 Qfe3 Kb1 Rg4 Ka1 Qf4 Kb1 Qcc7 Ka2 Q7c4+
6k1/1nK1Rr2/3p4/r1n2q2/2B3nn/rnb1P1BN/2qRRR2/BB1Bb3 b - - 0 1 legal: proof: d4 a5 f4 c5 f5 cxd4 f6 a4 b3 b5 a3 b4 axb4 a3 b5 Ba6 b6 exf6 Bg5 f5 Bc1 f4 Nf3 g5 Kd2 Bb5 Ng1 Bc6 Ke1 Ba4 Qd3 g4 Qf3 gxf3 bxa4 Be7 Nh3 Bd6 Ng1 Bf8 g4 h6 Nd2 Rh7 Ne4 Rh8 g5 h5 Nf2 Bc5 Ng4 hxg4 Kd2 Bd6 Ke1 Bf8 Kf2 f5 h4 Kf7 c4 d3 h5 a2 e3 d2 c5 d1Q c6 Qc8 b7 Nf6 g6+ Kg8 a5 Na6 b8R Nc5 h6 Qc2+ Be2 Nb7 g7 Bb4 a6 d6 c7 Nd7 a7 Ndc5 Rh2 Bc3 Rb1 a1N Nh3 Nab3 Bb2 Rh7 Re1 g3+ Kf1 f2 Kg2 f1R Ba1 Rg1+ Kf3 g2 Bd1 Rh1 Rf1 g1B Rd2 Bf2 Re2 Qf8 c8R Bfe1 Rff2 Rg1 Re8 Rg5 Re7 Rh5 Kg2 f3+ Kg3 f4+ Kg4 Rd5 Rd2 Rd3 Rfe2 f2 Rbe8 Bf6 Kf5 f1N Be5 f3 Bg3 f2 Rb8 Nd7 Ke6 Nh2 Rc8 f1N Rc6 Qb2 Rcc2 Nf3 Rf2 Rc3 Rde2 Qb1 Rcd2 Qc2 Kd5 Ndc5 Kc6 Nh4 Kc7 Rb8 a8B Nh2 Re4 Ng4 Re7 N7a5 Bc6 Nab7 Be4 Ra8 Bf5 Bd4 Bd3 Qf5 Be4 Qc1 Bb1 Ra5 Re4 Kf7 g8B+ Kf8+ Bf7 Qc2 Re7 Rg7 Be6 Rf7 h7 Bg7 h8B Kg8 Bc4 Rd3 Rf3 Bc3 Rff2 Bf6 Rf3 Nc1 Be6 Rda3 Rff2 N1b3 Bc4 Be5 Bf6 Ba1 Bg5 Bh8 Bf6 Bg7 Bb2 Bc3 Ba1
1b1K2Q1/1br1nBq1/b2BBR1P/1Bq1BnBR/8/r1q4k/r6q/1Qr3n1 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 a5 Kc4 d5+ Kd3 f2 h4 f3 b4 g3 c4 a4 e4 a3 h5 f4 e5 Kf5 c5 Kg4 c6 g2 e6 g1N b6 a2 g6 Nh6 b7 Qf6 c7 Nf5 h6 Nc6 b8B Ra3+ Qb3 Qg7 b5 Bb7 c8B Rh7 b6 Bd6 Bd7 Nce7 Be2 f1B Ba7 Bb8 Rb1 a1R Bb2 R1a2 Rh5 Kg3 Rc1 f2 Rc6 f3 Bc3 Kg4 Qb1 Kg3 Rg5+ Kh3 Bc8 Qe5 g7 Qh2 g8Q Ra6 Bb2 R6a3+ Kc2 Rg7 Bb5 d3+ Kd2 d4 Rh5+ Kg3 Bd7 Be2 Bc8 f1Q Bd7 f2 Rd6 Ba8 b7 Qfg2 Bb6 f1Q Bd8 Qff2 Ra6 Nc6 Bh4+ Kh3 e7 Qg4 e8B Nce7 Be6 Rh7 Qf7 Qg7 Qg8 Qf3 B8f7 Qc6 Bc8 Qc5 Rf6 Bf1+ Kd1 d2 Bce6 Bc4 Kc2 d1R+ Bf2+ Kg2 Bh4 Rc1+ Kd2 Bc7 b8B d3 Bed7 Bb7 Bde6 Be5 Bd6 Bg3 Bbd7 Bca6 Bb5 Nd4 Ke3 d2+ Bc3 Be5 Kd3 d1Q+ Ke3 Qb3 Kd3 Nec6 Ke4 Nf5 Ba1 Qbb4+ Bd4 Qcc3 Kd5 Bg3 B4e5 Kh3 Bc8 Qcc5+ Ke6 Nce7 Kd7 Qbc3 Kd8 Qcf2 Bb4 Qfc5 Bce6 Bf4 Bd4 Bb8 Be5 Q5d4+ Bbd6 Qcc5 Rg6 Qdc3 Rf6 Nc6+ Ke8 Qgg3 Bg6 Rc7 Bgf7 Ne7 Kd8 Qg7 Bg5+
1b6/q1rPq2R/1r1NNN2/r4Rqb/N2pqn1N/2B3R1/K2p2n1/2k1Rb2 b - - 0 1 illegal: No proof kernel
b1r2q1B/kP3NNK/r1rN4/1p1BQp2/B5bN/4n1b1/rB1nq3/2N2q2 b - - 0 1 legal: proof: f4 d5 h4 e5 b4 exf4 c4 g5 cxd5 gxh4 b5 a6 b6 Qd6 Qb3 Qf6 Qd1 Qd8 a4 Qf6 g4 Qb2 a5 Qb4 Ra4 Qc3 Rb4 Qf6 Rb5 Qd8 Rh3 Be6 Ra3 axb5 a6 Bf5 a7 Bc8 Ra6 bxa6 Kf2 Kd7 Kf3 c5 Ke4 h5 Kf5 h3 e4 f3 d4 f2 e5 a5 d6 Kc6+ e6 Kb7 d7 c4 g5 h4 g6 h2 e7 h1B e8N a4 d5 a3 g7 h3 d6 h2 Bg2+ Nc6 Qh5 f1Q+ Bf3 c3 Ne2 a2 Nd2 a1R Nc4 c2 Bb2 Ra6 Nc1 Nf6 g8N Nd5 Ng7 Qe2 Ne7 Na5 Ng6 Nb3 Nh4 Nd2 Bg4 f6 Kg6 Ne3 Qe5 Bc6 Be6 h1Q Bg8 Qe7 d8B Bg4 d7 f5 Bf7 Qb4 Bf6 Bd6 Be6 Rhd8 Kh7 Qhf1 Bf7 Rac8 a8B+ Kb8 Bg8 Bc7 Be6 Qf8 Nd6 Re8 d8N Bcf3 Nb3 c1R N8f7 Rc6 Nc1 Ra2 Bb3 Re6 Ba4 Bg2 Nh5 B2f3 Bh8 Rf6 Qh2 Bg2 Ng7 Be4 Nde8 Bg3 Ned6 Rc2 Nge8 Be1 Qe5 Bg3 Ng7 R2c7 Bc6 Ra7 Ba8 Ra6 Nde8+ Rd6 Bd5 Bef3 Be6 Ba8 b7 Ka7 Bd5 Rdc6 Ned6
4n3/1pkqb1PQ/2R1brQ1/1n6/qb6/QnNQ1r1Q/2qN1p1K/b2QR3 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Na3 f5 Nb1 f4 Bb2 g3 Bd4 Bf5 Bf2 Kd7 Qb3 gxf2+ Kd1 Bh3 Kc1 Ke8 Qd1 Bc8 g4 h5 g5 Qe7 Bh3 Qd8 Bg4 hxg4 h4 Kd7 d4 f1Q Kd2 c5 a4 f5 e4 f3 Ke3 c4 Kf4 c3 Kg3 b3 h5 f4+ Kh2 b2 h6 f2 a5 c2 d6 c1B h7 f3 d5 Qb5 e5 Nf6 a6 Bd2 a7 Bb4 g6 Nc6 g7 Nd4 Qf1 Be7 Qh3 Rf8 h8Q Ne8 Nc3 b1Q Q8h7 Rf6 Ra6 Qc2 Rc6 Rb8 a8Q Qba4 Qa7 Nb5 Qc5 Qc7 e6+ Kd8 Qe3 Qd7 Qc1 Ra8 Qa3 Ra6 Ne4 Rf8 Nd2 Rf4 Ne2 f1N+ Kg1 g3 Nc3 f2+ Kg2 Rf3 Rg1 Nh2 Re1 Nf1 Kh1 Qc7 d7 Rb6 Nc4 Nd2 Kg2 Nb3 Nd2 Rf4 Kh1 g2+ Kh2 Qd6 Rc5 Qc6 Rc4 Kc7 d8Q+ Kb8 d6 Rf3 d7 g1B+ Kg2 Qd5 Rc6 Bh2 Kh1 Bhd6 Kg2 Bf6 e7 Bdc5 Kh2 Qdf5 Ne2 Ba1 Nc3 Qg4 Rc7 Rbf6 Rc6 Nec7 e8Q Be7 Qeg6 Ne8 Qa5 Qe6 d8Q Qg4 Qd5 Be6 Qdd3 Qd4 Qb6 Qd5 Qbd4 Qd7 Rb6 Kc7 Qdg4 R3f4 Qd1 Rf3 Rc6+
4nN1b/1N1Kn3/r2B2Q1/5n1N/nBp4n/Bp2B1r1/B3bb1P/1q1nN2k b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 g5 e4 f5 g4 Bh6 a4 Bf8 Ne2 fxe4 f5 Na6 Ra3 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Rg1 Nh6 Rg2 Ng8 Rg4 hxg4 Kf2 Kf7 d4 e5 d6 b5 g6+ Kf6 a5 Kg5 d7 Kh4 a6 c5 a7 e3+ Kg2 f3+ Kh1 e4 d5 g3 f6 c4 f7 b3 d6 b2 g7 g2+ Kg1 Kh3 Bd2 b4 Qb3 Nc6 Nbc3 b1N Nb5 Nce7 Ned4 e2 Kf2 e1N Ke3 f2 Kf4+ e3 Ke5 Nc3 Ke6 e2 Qb1 b3 Nc2 Nd1 Bb4 Nf3 Ne1 Nf6 g8N Nh4 Qg6 Bg7 f8B Ne8 Nf6 Rg8 Nh5 Bh8 Bh6 Qa5 Be3 Qa2 Ba3 Bb7 d8B Qb1 d7 Bf3 Bc7 Rg7 d8B Rg8 Nd3 e1B Bcd6 Be2 Ba5 Rg7 B5b4 Rg8 Qf7 Rg3 Qg8 Nhf5 Qg5 Nb2 Kd7 Na4 Qg7 Rc8 a8N Rc6 Qf6 Ra6 Nb6 Bg4 Be2 f1N Qf7 g1N Qg6 Bf2 Ne1 Nf3 Bd3 N3h4 Bc2 Be2 Be4 Qb2 Bb1 Qc1 Ba2 Qb1 Nd3 Kg2 Ne1+ Kg1 Bc7 Rg4 Nd6 Kh1 Nb7 Rg3 Bb8 Nd2 B8d6 Ne4 Ke6 Nec3 Nd7 Nd1 Nf8 Ra7 Kd7 Ra8 Bef4 Ra6 Be3
n3q1k1/P5nR/1b1K4/nq1R1rRB/N4p2/3n1Np1/1N1p1r1R/2nb2NN b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 c5 b4 axb4 d4 cxd4 Bf4 g5 Qd3 gxf4 g5 h6 g6 Ra4 Qg3 Ra8 Qg5 hxg5 Kd2 d5 Kd3 f5 a4 b5 h4 f3 c4 g4 e4 f2 h5 f4 h6 g3 c5 b3 a5 b4 g7 Kf7 a6 b2 h7 b3 c6 Bc5 a7 Qe8 c7 Nc6 Rh5 Nh6 g8R Bg4 c8N Na5 Nb6 Nf5 Bg2 f1N Rgg5 Nd2 Rh2 Ndc4 Bf3 Ng7 Na4 Bb6 Nd2 b1N e6+ Kf8 e5 b2 Ra2 Nc3 e7+ Kf7 Ra1 Na2 Rd1 Rb8 Be2 Rf8 h8R Rb7 R8h3 Kg8 e6 Rf5 Rh7 Rd7 Ndf3 Nc1+ Kc2 d3+ Kc3 d2 Kb4 Bh5 Kb5 d4+ Kb4 Qc8 e8N d3 Nd6 Qe8 e7 Rd8 Ne4 b1Q+ Nb2 Rd6 Nc5 Rc6 Na4 Re6 Re1 d1N Rf1 Nf2 Rd1 Be3 Rd2 Nb6 Bd1 Na8 Be2 Qf7 e8N Bb6 Nd6 Qe8 Ne4 Rc6 Bd1 Rc2 Be2 Ng4 Bd1 Ne5 Nf2 Bg4 Nh1 Bh5 Rdg2 Rf2 Be2 Bg4 R2h5 d2 Rgh2 Bd8 Kc5 Ned3+ Kd6 Bb6 Nd1 Qbb5 Ndb2 Rf7 Rd5 Rf8 Rhg5 Rf5 Nh4 Bh3 Bh5 Bg4 Ng6 Be2 Ne5 Bd1 Nef3
7k/NpQ2Br1/rn4B1/BN1p4/b1rb2BK/pP2n1N1/1q1Nb3/r4N1b b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 a4 a5 Ra3 Bh6 Rb3 Bf8 g4 Bh6 Rb4 axb4 Rh3 Bf8 Ra3 bxa3 c4 Kf7 f4 Kg7 Kf2 d5 b3 h5 c5 e5 g5 e4 c6 d3 g6 d2 f6+ Kh6 f5 h3 Kg3 e3 c7 h2 a5 h1B f7 Kg7 a6 e2 f6+ Kh6 a7 e1R g7 Kh7 Bd3+ Bf5 c8B Qd6+ Kh4 Bf3 Qc2 d1B Bd2 Nd7 Ba5 Nb6 Nd2 Bh1 Ne2 Ne7 Nf1 Qe5 Qc7 Rg8 Neg3 Qb2 Bb1 Bd3 Bg4 Be2 Bc2 Rc8 a8N Rc1 Bb1 Rc4 Bc2 Rd8 Bb1 Rd6 Bc2 Na4 Nb6 Bg6 Nc8 Ra6 Na7 Nf5+ Kg5 Ne3 Kh4 Bc5 f8N+ Kh6 f7 Nb6 Nd7 Kh7 Ne5 Bd4 Nf3 Bgd3 Kg5 h4 N3d2 h3 Kh4 h2 Bb1 Rc8 g8B+ Kh8 f8N Bg6 Nh5 Be8 Bf7 Ba4 Ne6 Rg8 Nhg3 Rg7 Bh7 Bhf3 Bhg6 h1R+ Nh2 Ra1 Nhf1 Bc3 Nd4 Bh1 Ndb5 Be5 Qc6 Bd4 Qc7
R7/b4p1K/3N1RNp/R2n1qrp/2kNRprN/2b1bPn1/1pQ5/1N4b1 b - - 0 1 illegal: No proof kernel
2NQBqq1/5b2/3q1r2/KP3k2/Br2BnNn/5nq1/2BNp3/2N3bQ b - - 0 1 legal: proof: g4 g5 b4 e5 h4 a5 hxg5 c5 e4 b5 a4 f6 d4 cxd4 Ba3 Qe7 axb5 Qd8 b6 Qe7 b5 Qd8 Bb4 axb4 Ra3 Ra4 Rc3 Ra8 Rc4 d3 Rd4 Ke7 Rh3 Kf7 Re3 exd4 e5 Ke7 e6 Ke8 Re5 fxe5 Kd2 Ke7 c4 h5 f4 d5 f5 h4 c5 b3 g6 Kf6 c6 h3 g7 e4 c7 h2 b7 h1Q e7 b2 e8B e3+ Ke1 e2 Kd2 Qh3 Qb3 Ne7 g8B Nbc6 b8Q Ng6 Qc2 Nce5 Qd1 Nf4 Be6 Bc5 Bg2 Ra4 Be4 Qg3 Nf3 Rb4 Qh1 Rf8 Nc3 b1Q Na2 Bb6 Bg8 Be6 c8N Bf7 Bh7 Qe7 Qc7 Qf1 Qd8 Qff2 Kc1 d2+ Kc2 d1N Nd2 Nf3 g5+ Ke5 f6 d3+ Kc1 d4 g6 Qb7 g7 Ne3 g8B Neg2 Bef5 Ngh4 Bfg6 Rc4+ Kb2 Rb4+ Ka3 Qe4 Nc1 Ba7 Nf1 d2 Bf5 d1Q Nd2 Bd5 f7 d3 Bhg6 Qdg1 B8h7 Rg8 f8N Bf7 Be6 Bb6 Bb3 Be3 Bf5 Rg6 Ba4 Rf6 Bfg6 Ba7 Nd7+ Ke6 Ne5 Bc5 Nb1 d2 Ng4 d1Q Nd2 Ba7 Nf1 Qd6 Nd2 Qec6 Bd3 Qe4 Nh6 Qg8 Ng4 Qgg3 Bdc2 Qee3+ Bhd3 Qe4 Bcb3+ Kf5 Bd1 Bd4 Bac2 Rb1+ Ka4 Rb4+ Ka5 Qf1 Ba4 Bg1 Bdb3 Qff2 Bbc2 Qfc5 Qh3 Qdf8 Qh1 Qcd6 Bxe4+
1rn4N/2Nq3R/pk1Q4/1P4nr/n2p4/1K3b1q/2N3N1/1QRRRnnq b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 f4 e5 Bd2 exf4 Be3 a6 Bd2 Bc5 Bc1 Ba7 b6 Qe7 Ra5 Qg5 Ra1 Qd8 bxa7 g5 g4 f3 Bf4 f2+ Kd2 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 c4 f1N+ Kc2 d5 b4 Kd7 e4 Kc7 h4 f5 b5 d3+ Kb3 g3 g6 d2 e5 d4 g7 f3 c5 g2 h5 f4 e6 f2 c6 f3 e7 Nh6 e8R Nf7 g8Q Bb7 h6 Nd7 h7 Rb8 Qf8 Nb6 Nh3 g1N Re1 Nc8 Nf4 Kb6 c7 Qd7 Na3 Ng5 Qb1 d1N Nc2 Nb2 Ng2 Na4 Rd1 Ng3 Re1 f1Q Qd6+ Bc6 Rh6 f2 Rd1 Qe1 Rh1 f1Q a8N+ Ka7 Rh6 Qff5 Rh5 Qh3 Rh6 Bf3 Rh5 Rf8 h8N Nf1 Rh7 Qeh4 Re1 Rf5 Rd1 Qh1 Re1 Q4h3 Rd1 Ncb6 c8R Re5 Re8 Nc8 Nc7 Rc5 Qd5 Kb6 Ree1 Rc6 Qe5 Rh6 Qe7 Rh5 Qd6+ Kb7 Qa2 Ka7 Rac1 Kb7 Qb1 Ka7 Qe7 Kb6 Qd6+
5r1r/2b1KB1B/1BR2r2/qpRq4/1Qqq4/b3RR1P/k3b1nn/2B3Qq b - - 0 1 legal: proof: g4 g5 b4 h5 c4 e5 f4 d5 cxd5 a5 Na3 axb4 Nc4 e4 Ne3 gxf4 Nf3 exf3 g5 Be7 Ng4 hxg4 Bh3 Bc5 Bf1 Bf8 Kf2 Ke7 a4 Kd6 e4 Kc5 g6 b5 d6 f5 h3 b3 d4+ Kb4 d5 c5 e5 c4 g7 g3+ Kg1 c3 a5 c2 a6 b2 e6 Kb3 a7 b1Q e7 g2 Kh2 f2 e8B f3 Kg3 g1Q+ Kf4 Nh6 Ke5 f4 g8Q Na6 d7 Nc5 d6+ Ne6 Qg3 Qa2 Qd4 Qda5 Kf6 Ng4+ Kf7 Nh2 Bd2 c1B d8B Ba3 d7 Bfd6 Bb6 Bc7 Be2 f1Q Bd3 f2 d8R f3 Bc1 Nf4 Bh7 Bg4 Rd5 Ng2 Rc5 Qc4+ Ke7 f1Q Bf7 Raf8 a8R Qff2 Qe4 Qd4 Re8 Qgd1 Qge1 f2 Qg1 f1R Qf4 Be2 Rb1+ Ka4 Rb3 Qcd5 Qg4 Rf6 Rf3 Qac4 Qh4 Q1d3 Qhe1 Kb3 Qb4+ Ka2 Rc8 Qd1 Re3 Bg3 R8c6 Qe1 Qf2 Be5 Rf1 Bc7 Qg1 Qed1 Rff3 Qf1 Qf2 Qh1 Qg1
KnBQ1B2/n1N2b2/2r2kN1/r1N3Nr/1n1b1Bp1/rBp4P/5qnq/5Q2 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 b4 Nh6 h3 Ng8 Ra3 h5 Rf3 Qg5 g3 Qd8 Rh2 Bh6 Rg2 gxf3 g4 Bg7 g5 Bf8 Rg4 hxg4 Kf2 Ke7 d4 f5 e4 c5 e5 a5 b6 c3 e6 a4 g6 a3 b5 a2 d5 a1R d6+ Kf6 b7 c4 d7 c2 e7 c3 g7 Qc7 d8Q R1a3 b6 R8a5 Ne2 Rh5 Nd2 Be6 Qe1 Bf7 e8N+ Kg6 Bb2 c1N Ne4 Na2 Ng5 Ne7 g8B Nb4 Qa1 Qd6 Nc7 Nc8 Bg2 Na7 Qf1 Bg7 Bc1 N8a6 b8N Bd4+ Be3 Kg7 Nd7 Nb8 b7 Qe5 Nc5 Kg6 Ke1 f2+ Kd1 f3 Nf4+ Kg7 Ng6 Qh2 Kc1 f4 Kb1 Be8 Bb3 Bf7 Bd2 Ra6 Bc1 R3a5 Ba3 Rc6 Qe1 f1Q Ka1 Qc4 Qf1 f2 Be4 f3 Bf5 Qe2 Bc8 Nc2+ Ka2 Qd2 Bd5 Nb4+ Kb3 Qdf4 Kc4 Qf6 Qa1 f1R Bde6 Rf2 Qf1 Ra2 Bd5 f2 Bde6 Nd3 Bb4 R2a3 Kd5 Na6 b8B Qff4 Nb5 Qf6 Bf4 Nb8 Qc1 f1N Nc7 Ng3 Qf1 Nf5 Ke4 Nh4 Bb3 Re6+ Kd5 Ng2 Bd6 Qf2 Bf4 Re8+ Kd6 Re3 N7a6 Re1 Kc7 Re6 Kb7 Rb6+ Ka8 Rc6 Qe8 Kf6 Nc7 Ne3 Na4 Ng2 Bf8 Nb4 Nc5 Qe3 Qd7 Qf2 Qd8+
2q5/2bnBQn1/2bRr1Rn/1p1n2R1/k2p4/1PbnB1R1/4BrpB/3K1Q2 b - - 0 1 legal: proof: e4 a5 g4 h5 d4 hxg4 d5 f5 exf5 c6 Nh3 cxd5 Ng1 d4 a4 Rh4 Nc3 Rh7 Nd5 Rh8 Nb4 axb4 Nf3 Rh4 Nd2 Rh7 Nc4 Rh8 Na3 bxa3 h4 g5 c4 e5 f4 d5 f6 Kd7 f5 Kc6 h5 a2 a5 d3 h6 e4 f7 g3 h7 d2+ Ke2 e3 c5 Kb5 c6 g4 f6 g2 c7 g1B a6 g3 a7 g2 Rh4 d4 Rh6 Bh2 Rg6 Bd7 c8Q Bc7 Rg4 Nh6 Rg6 Bc6 Qh3 Nd7 Qf3 Bb4 f8B Bc3 f7 Qc8 Be7 Re8 h8R b6 Bd6 Re6 f8B Ka5 Qe1 d1N Bh2 b5 Rhg8 Ka4 Qf7 Rb8 Bd2 Rb7 Rc1 a1N Be7 Nb3 a8R+ Ra7 Rb8 Nbc5 Rb6 Ra6 Qef2 Rf6 Rg5 Ne6 R8g6 Ng7 Ke1 Rf5 Be2 Rf3 Qf1 Rf2 Bh5 e2 Bg4 Be4 Rbd6 Bc6 Bh5 Ne3 Bf3 Bb4 Rc3 Nd5 Be3 Bba5 Kd2 e1N+ Be2 Nd3 Kd1 Bb4 Rg3 Rb6 Rc5 Bc3 R6g5 Ba8 Rdg6 Rd6 Rc6 Re6 Rd6 Bc6 b3+
4b3/1Rb4B/k2P1B2/Q1B2rqp/5ppR/1qnKnr2/rQ3Q2/Qr1B2n1 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 dxc4 h5 g6 h6 Bf5 Rh4 Be6 Rh1 Bc8 g4 Nc6 g5 Bc5 Nc3 Bf5 Ne4 Bf8 Ng3 Nb8 Nh5 Bc8 Nf3 Nd7 Ne5 gxh5 g6 Nb8 g7 Qd3 Ng6 hxg6 Ra2 Qd7 Ra1 Qd8 d4 Kd7 Kd2 f5 e4 c5 b4 Kc7 h7 Kb6 d5 a5 e5 a4 e6 c3+ Kd3 g5 e7 c2 e8B c4+ Ke2 g4 Rh2 a3 Ra2 f3+ Ke3 f4+ Ke4 f2 Bf7 c3 Qe1 Bd7 Kd4 Nc6+ Kd3 Na7 Bg6 Qg5 Rb2 a2 Be2 a1R Bd1 f1R Rh4 Ne7 g8Q Be8 Qg7 Nf5 Qf2+ Ne3 d6 Be7 Bd2 Rf8 h8B c1Q Bh7 c2 Rb1 Kb7 b6 Rf5 b5 Qb2 Bb4 Qb3+ Qc3 Ra2 Bf6 Bd8 Bc5 Rb8 Rb2 Bc7 Rb1 Qf7 Qa1 c1N+ Ke4 Ne2 Kd3 Ng1 Rb2 Kc8 b7+ Kd7 b6 Kc6 Rb3 Nb5 Rb1 Nc3 Rb2 Rc8 b8Q Qb3 b7 Kb5 Rb1 Rd8 Rb2 Rd7 Rb1 Ka6 Rb2 Bf7 Qh8 Rd8 b8Q Be8 Qb4 Rb8 Qd4 Qa4 Rb7 Qa3 Qb4 Qb3 Qfb2 Rf3 Qg8 Qg6 Qd5 Qg7 Qdd4 Qg5 Qf2 Qf7 Qbb2 Qb3 Qb4 Ba5 Rc7 Qa4 Qe4 Rb4 Qbc1 Bb6 Rb7 Rb1 Qb4 Qb3 Qcb2 Bc7 Qa5+
1Qn3Q1/1bR1b2N/1q3ppp/r1b3R1/1N1rQ1PQ/bN2N2b/4k3/3b2Kn b - - 0 1 legal: proof: e4 c5 h4 b5 a4 f5 axb5 Qc7 d4 cxd4 h5 Qh2 Ra5 Qxh5 Ra1 Qh2 f4 Nh6 e5 Qh5 Bd3 Qg4 Be4 fxe4 f5 Qf4 f6 Qh2 Bg5 Ng8 f7+ Kd8 Bf6 exf6 Qe2 Ke7 Qd3 Qh3 Qd1 Qh2 Kf1 Ke6 b4 Kf5 c4 Kf4 e6 Ke3 g3 a5 e7 d5 e8Q g6 c5 a4 b6 h6 b7 d3 c6 a3 b5 a2 b6 d2 c7 d4 Qd8 d3 Ne2 Ba3 f8N Na6 b8N Nb4 b7 Ra5 Qd6 Ne7 Rg1 Bh3+ Rg2 Nc8 Qb3 d1B Nd4 Bf3 Qa4 d2 g4 d1B Qg3 Nd3 Qh4 Nf2 Nb3 Qd6 N1d2 Nh1 Na6 Qb6 Nh7 Rd8 b8Q Rd4 Kg1 Kd3 Rf2 e3 Nc4 e2 Ne3 e1B Rc1 Bb7 Rf5 a1B Nb4+ Ke2 Rg5 Bg3 Qe8 Bd6 Qe4 Be7 Rc4 Rd7 Rc1 Bd4 Rc4 Bdc5 Rc1 Na7 c8Q Rd4 Qg8 Nc8 Rc3 Bcd6 Rc6 Bc5 Rc7
2n5/n1r3PK/q2RNkN1/Q3rq2/b1Q2rrQ/Q1n1qN1n/r2Q4/3Q4 b - - 0 1 legal: proof: a4 g5 c3 h5 b3 b5 Na3 d5 Bb2 h4 Rc1 d4 cxd4 Na6 Bc3 Nb8 Bb4 Bd7 Bd6 Bc8 Bg3 h3 Bh4 gxh4 Rc2 Nh6 Rc4 Ng8 b4 Kd7 e3 a6 Be2 bxc4 b5 Rh5 b6 Rh7 Bf3 Rh8 Bc6+ Kd6 Be4 Kd7 Nb1 Bh6 Na3 Bf4 Bb7 Ke8 Bc6+ Kf8 Bb5 axb5 Qa1 Ke8 Qc1 Ra5 Qd1 Ra8 f3 Bg3+ hxg3 e5 f4 exf4 Ke2 Ke7 Kf3 c5 Ke4 f6 d5 f3 d4 c3 g4 h2 b7 f2 a5 f1R a6 c2 g5 c1R g4 h3 a7 c4 g6 c3 g7 c2 g5 b4 g6 b3 Nf3 b2 Nc4 b1N Nce5 Nc6 b8Q Qf8 Qc7+ Bd7 Qa5 Rh5 d6+ Ke6 Qa3 Nge7 g8Q+ Qf7 g7 f5+ Kf4 Nc8 d5+ Kf6 e4 Nc3 Ng6 Qe6 Rg1 h1N Rg2 h2 Rd2 Be8 d7 Nf2 d8N h1R d6 Rhg1 d7 Qa2 Ne6 Nh3+ Ke3 Qa1 Rd6 f4+ Kd3 Re5 d8Q+ N8e7 Qda5 Nc8 Qh8 Rgg5 Qh4 Qb1 Q5c5 Qb7 Qc4 Qa6 Qf2 Rg4 Qfd2 Nd8 Qa5 Ba4 Kd4 Nc6+ Kd3 Rb8 a8Q Rb2 Qa7 Ra2 Qaf2 N6a7 Qh4+ Reg5 e5+ Kf7 Ng1 f3 Ke3 f2 Nf3 Rb1 Kd3 c1Q Ke3 Rb7 Kd3 Rc7 Ke3 Nd5+ Kd3 Rg3 Ke4 R5g4+ Kf5 Nc3 Rd5 Re4 Rd6 Rgg4 Ng1 Qa3 Ngf8 Nd5 Ng5+ Ke7 Kg6 Qe3 Kh7 Rc2 Ng6+ Ke8 e6 Ra2 e7 Nc3 Rb6 Re5 Ne6 Kf7 Rc6 Rgg5 e8Q+ Kf6 Qg3 Rg4 Qf8+ Rf7 Qa3 Rc7 Qdb3 Rc1 Rb6 f1Q Rd6 Qf5 Qb1 Rf4 Nf3 Rg1 Qbd1 Rg2 Qge1 Rgg4 Qh4+
2QQ1K1n/p3Bp2/nQP1p1kp/p7/qrN2rp1/1r5B/1QQ2Q2/2b1B3 b - - 0 1 legal: proof: g4 d5 a4 b6 e4 Na6 exd5 Be6 b4 Nb8 a5 Bc8 f3 Be6 g5 Bg4 fxg4 bxa5 b5 c6 Ra4 c5 Rb4 cxb4 h4 h5 g6 Rh7 g5 Rh8 Rh3 Qb6 Rg3 Qd8 Rg4 hxg4 h5 Qd6 h6 Qc7 h7 Qc6 Na3 Kd8 Nc4 Qb6 Ne3 Ke8 Nf5 Qd8 Nh6 gxh6 Kf2 e6 Ke3 b3 Ke4 b2 Ke5 b1R d4 Ne7 Kf6 Qc8 c4 Na6 c5 Ra1 b6 Ra3 b7 Rg3 b8Q Rb3 g7 Rb1 g8Q Rb4 d6 Rb3 c6 Rb7 g6 Rb2 g7 Rb6 d5 Qd8 Qf3 Rb1 Bh3 Rb4 Bd2 Rd4 Qf2 Nb4 Be1 Nd3 Nf3 Nb4 Ne5 Re4 Qbb6 Na6 Nc4 Qc7 d7+ Kd8 Qb3 Ng6 Qbc2 Qg3 Qf1 Rb8 Qff2 Kc7 d8B+ Kc8 d6 Qb3 Qf5 Qa4 Qff2 Rb3 Be7 Rb4 d7+ Kc7 Bc5 Bd6 Qf8 Bf4 g8Q Bc1 Kg7 Rf4 Be7 Rb3 Qa8 Rb4 Qge8 Rf8 h8Q Rb3 Qh7 Nh8 Qb2 Rb4 Qhc2 Rb3 Bc5 Rb4 Qe7 Rfb8 Qeh4 R8b7 Kf8 Rb3 Qhg3 R7b4 Qb7+ Kd8 Qge3 Rb6 Ba3 R6b4 Qeb6+ Nc7 Kg8 Ke7 Qc8 Na6 Kg7 Rc3 Kg8 Kf6 Kf8 Kg5 d8Q+ Kh5 Qce2 Rcb3 Qed2 Kg6 Qd1 Rb5 Be7 R5b4 Qdc2+
R2K1b2/4p3/bQ2q3/1p1RQpp1/1rR1n1bk/Q3P2r/1R2Q2B/1Rqq3n b - - 0 1 legal: proof: f4 h5 g4 a5 b4 axb4 c4 d5 f5 f6 g5 Kd7 g6 Rh6 Bh3 Rh7 Bg4 hxg4 Nf3 Qe8 cxd5 Qd8 Ng5 Rh8 Nc3 fxg5 f6 Ra5 f7 Ra3 Ne4 Ra8 Nf6+ gxf6 Kf2 b5 Kg3 c5 a4 b3 h4 b2 d4 b1B g7 c4 a5 c3 h5 c2 d6 Ke6 h6 Kf5 d7 Ra7 d5 Qb6 d8Q Ra8 a6 Ba2 d6 Bd5 d7 Bc6 h7 Be4 a7 Bf3 Rh2 Bg2 Bf4 c1Q e3 Bh3 Rb1 Nh6 g8R Qe6 Qe2 Na6 Qb6 Nc5 d8R Ba6 Rd3 Rd8 a8R Rd4 Be5 Rb4 Rd5 Na4 Rc8 Nc3 Rc4 Qd1 Qb2 Qc1 Qa3 Qd1 Rhb2 Qc1 Kf2 g3+ Kf3 g2 Kg3 g1Q+ Kf3 Bg7 f8Q Ng4 Bh2+ Kg6 Qfb8 Kh5 Qe5 Nf2 Ra8 Qgf1 Kg3 Bf8 Kf3 Qfe1 Kg3 Nh1+ Kf3 Na2 Ke4 f5+ Kd4 Qed1+ Kc5 Qg8 Kc6 Bg4 Kc7 Qe6 Kd8 Kh4 Qd3 Nc3 Qe2 Ne4 Qc3 Rg8 Qa3 Rg6 h8Q+ Rh6 Bg1 Kg3 Qhc3 Rh3 Bh2+ Kh4 Qe5
N4bn1/5bkr/R1b1R3/2p1RRb1/2Np1N1p/1bN1pqnr/N3P1N1/6K1 b - - 0 1 legal: proof: h4 a5 b4 axb4 g4 f5 g5 g6 d3 Bg7 Qd2 Bh6 Qf4 Bg7 h5 Bf8 Qg4 fxg4 hxg6 Bg7 Nf3 Bh6 Ng1 Bf8 c4 c5 d4 Qc7 d5 Qa5 Bb2 Qc7 Bd4 cxd4 c5 Qd8 c6 Ra3 c7 Rb3 Bg2 Bg7 Be4 Ra3 Bd3 Ra8 Bb5 Bf8 Bc6 dxc6 Kf1 b5 f4 e5 a4 h5 g7 Kf7 d6 g3 f5 c5 a5 b3 g6+ Kf6 d7 b2 a6 h4 a7 e4 Nc3 b1B Nf3 g2+ Kg1 b4 Ne1 b3 Ra6+ Nc6 Na2 b2 Rh3 Rh7 Re3 Bb7 c8N Qc7 d8N Qb6 Nd6 Bc2 Nc4 b1B Ne6 Bb3 Nf4 Rb8 a8N Nce7 Nc1 Qc6 Na2 Nh6 g8N+ Kg7 Nf6 Neg8 N6d5 B1c2 Kf2 g1B+ Kg2 Qf6 Ndc3 Bc6 Kh1 Bf2 Neg2 Be1 Kg1 Bd2 Nd6 Bf7 Nc4 Bb5 Re6 Bc6 Re5 Bb3 Re6 Qg5 Re5 Qh5 f6+ Kh8 Re6 Nf5 Re5 Ng3 Re6 Bfe8 f7 Qf3 Re5 Kg7 Re6 Be7 f8R Rb6 Rff6 Bf7 Rf5 Bf8 Nb1 Ba5 Nbc3 Ra6 Ree5 Bd8 Re6 Bg5 Ree5 Kh6 g7 Ra3 Re6+ Nf6 g8R Bd1 Ng6 Bb7 Na5 Qg4 Re8 Nh1 Rg7 Ng8 Nd5 Rc3 Ngf4 Bb3 Nc4 Qg3 Nac7 Qg4 Ra8 Bc6 Ra6 Qh5 Rg3 Re3 Na8 Qg4 Ndc3 Rf3 Ne6 Qf4 Re5 e3 Rg4 Qe4 Rf4 Rh3 Rff5 Ng3 Nef4 Qd5 Ra3 Qf3 Ra6 Bd5 Rge7 Bf7 Re8 Kg7 R8e6
1b4RN/4q2n/1qnrkr2/3pP1Np/3BpP2/q2NK3/n1Q1BR2/4R2r b - - 0 1 legal: proof: h4 e5 f4 exf4 e4 b5 d4 g5 a4 gxh4 axb5 c6 d5 cxd5 e5 Nf6 Qe2 Ng8 Ra6 f5 Qe4 dxe4 Ra4 f3 Be2 f4 Ra1 f2+ Kd2 f1N+ Kd1 Ng3 Ke1 Nf1 Na3 f3 Bh6 f2+ Kd1 Bb7 Bc1 Bd5 Nb1 Bf7 Na3 Bh5 Nb1 Bf3 gxf3 Qg5 Bf4 Qe7 Bc1 Qd8 b4 Kf7 c4 a5 b6 h5 b5 d5 b7 a4 f4 a3 b6 h3 c5 h2 c6 a2 c7 Ra5 c8Q Rh6 Be3 Ra4 Nd2 Ra6 Nh3 Nc6 b8N Rd6 b7 Ng3 Nf3 f1Q+ Kd2 Qe7 Nh4 Qb1 Bd4 Qb6 Rhe1 h1R Ng6 Nf6 Nd7 Nh7 b8R Ke6 Rab1 a1Q Rb2 Qa4 Nh8 Qa1 Ke3 Qa3+ Bd3 Ne2 Ng5+ Kf5 Rd2 Nc3 Be2 Rf6 Qc7 Rd6 Nc5 Na2+ Nd3 Rf6 Nf3 Ke6 Ra8 Qg7 Rd8 Bd6 Rg8 Qe7 Rb2 Nb8 Qc2 Nc6 Rf1 Bb8 Rf2 Ra7 Rb1 Rd7 Re1 Rd6 Ng5+
2nBb1B1/2pn3p/k1q2nN1/1prnn3/1N1R1R1Q/3p3P/N5P1/bB3K2 b - - 0 1 legal: proof: b4 b5 c4 g5 f4 gxf4 d4 a5 bxa5 e6 d5 exd5 a6 dxc4 a4 Ra7 a5 Rb7 a7 Rb6 axb6 c3 b7 Nc6 b8Q Nxb8 a8N d5 e4 Kd7 e5 Kc6 h3 Kb7 e6 f5 e7 c2 e8B f3 Bf4 c1N Ra3 f2+ Kd2 d4 Qf3+ Qd5 Be2 f1N+ Ke1 Nh2 Qf2 Bg7 Qh4 Qc6 Bd1 Bd7 Bf7 Ng4 Ra4 Be8 Na3 Nd7 Bc2 N4f6 Ne2 Ne7 Kf1 Rg8 Bg5 f4 Nc3 f3 Nb6 f2 Na2 Nc8 Nd5 Nd3 Nf4 N3e5 Bb1 Rf8 Rb4 Ka6 Nc2 Bh8 Ng6 Rg8 Ke2 f1N Bb3 Rf8 Bg8 Ne3 Rf1 Ned5 Rf4 d3+ Kf1 Rf7 Rbd4 Re7 Bh6 Rg7 Nf8 Rg3 Ng6 Re3 Bg5 Re4 Rb4 Rc4 Rd4 Rc3 Rf4 Rc5 Rbd4 Ne4 Be7 Nef6 Bd8 Neg4 Rfe4 Nh5 Rb4 Ba1 Rbd4 Nge5 Rf4 Nhf6 Ncb4+
3q2BQ/nbR3N1/1R3nB1/2nb1K2/k3R2q/qnN1Pb2/2P2r2/3N1nnr b - - 0 1 illegal: No possible last move
2k3nr/rn5n/n1Kbn1n1/R3P2q/2Nq2r1/3PQB2/1BbB2Nq/RR6 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 c5 b5 c6 axb4 axb5 dxc6 Ba3 c5 Bc1 c4 Kf2 Kd7 Kf3 f5 g4 h5 e4 c5 e5 b3 b6 h3 g5 h4 g6 b2 g7 c3 b7 c2 Bd3 c4 Ne2 c3 Ng3 h2 Qe2 h3 Na3 b1N Ba6 Bd6 Re1 h1Q+ Qg2 h2 Ne4 Ra7 Bc4 Na6 Nb5 Na3 Nc7 Nb5 b8B Nd4+ Kf2 f3 Ke3 f2 Nd5 f1R Ng5 f4+ Ke4 f3 Re3 f2 Nf3 Ne6 Ra4 Rg1 Ra5 f1N Ne7 Ng3+ Kd5 Ne4 Qf2 Rg4 Ne1 N4g5+ Ng2 Nh7 Bb2 c1N Nf5 c2 Re1 Ne2 Bc7 c1N Qe3 Nd3 Rb1 Ndc5 d3 Nb7 Raa1 Qd1 Ba2 h1Q Ba5 Qh2 Bd2 Kc7 Bc4 Bd7 Bb3 Qdh1 Bd1 Kc8 Ra5 Be8 Raa1 Bf7 Kc6 N2f4 Bf3 Ng6 Ra5 Qh5 Raa1 Q1h2 Ra5 Ba3 Ra1 Qd4 Nd6+ Kb8 Nc4 Bd6 Rb1 Kc8 Raa1 Nef8 Na5 Bb3 Nc4 Bc2 Ra5 Nh6 Raa1 Ne6 g8R+ Bf8 Rg7 Ng8 Rd7 Bb4 Rd5 Bd6 Rda5
nr2b1R1/5RK1/1B1b1BbN/r3b1qP/r5bN/3rbnR1/2bPB2k/6Q1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 e5 c5 exf4 c6 axb4 axb5 dxc6 Ra4 c5 Ra1 c4 Kf2 Ke7 e4 Ke6 h4 Ke5 h5 g5 b6 c5 b7 f5 Ba3 g3+ Kf3 c3 Rh3 c4 Rh1 c2 Bc1 b3 Ra3 g2 Qe2 c3 Nh3 g1B Qa6 g4+ Ke2 f3+ Ke1 g3 Qc6 f4 Bg2 f2+ Ke2 f1B+ Kf3 b2 Qa4 Nd7 Kg4 f3 b8B+ Bd6 Ra1 f2 Qc6 Ne7 Kg5 Nf5+ Kg6 Nd4 Na3 b1B Qb7 Bd3 Bb2 c1B Nb5 f1B Qc6 c2 Ba3 Nb6 Ba7 Bb2 Ng5 Kf4 Nf3 c1R Rh3 Rc5 Nh4 Bg4 Bf3 g2 Kg7 Bfe2 Qb7 Bbc2 Rf1 Bf2 Bb4 g1R Bc3 Rg3 Qd5 Rc4 Qc5 Bg1 Rf2 Ra4 Rf1 Re8 Rf2 Rb8 Rf1 Na8 Bb6 Re5 Rf2 Be7 Nd6 Bb5 Nf7 Bed3 Rf1 Bd6 Be2+ Rf3 Nh6 Qg5+ Kf7 Rd5 e5 Bg6+ Kg7 Bf2 e6 Rd3 e7 Re5 Rhh1 Kg3 Rhg1+ Kh2 e8R Bc6 Rg8 Bce8 Rg3 Bg1 Rf4 Nf3 Qe3 Rea5 Rf7 Ba1 Bf6 Bae5 Qd4 Bf2 Qa1 Be3 Qg1+
1BqnKb2/n1q5/P2r1b1Q/5kb1/r1nNR1qB/b3PN2/2N4q/1R2r2R b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g4 h5 Ba3 f5 Bc1 f3 Bg2 f4 Bh3 Bf5 gxf5 Nc6 Bg4 hxg4 Qb3 Nb8 Qc2 Qg5 Qd1 Qd8 Kf2 Kf7 a4 Kf6 h4 c5 d4 g5 h5 b5 d5 c3 d6 c2 a5 c4 h6 g3+ Kf1 f2 Kg2 f1R Kh3 c3 Kg4 b3 Kh5 f3 d7 b4 h7 g4 Ra2 g2 Rh2 b2 Qe1 f2 Bd2 c1B Bh6 g3 Rh3 c2 Nf3 g1Q Nc3 b1Q Qd2 b3 Rb2 g2 Ra2 b2 Qf4 Nc6 Qc7 Qh2 Bf4 g1B Ra4 Re1 Nb5 f1Q Na3 Bd4 Qb6 Qc8 d8B+ Ne7 Bb8 Bg5 e3 c1B Nc2 Qfe2 Ra1 Qa2 Rb1 Qhc7 Rh4 Rg8 h8R Rg6 Rf4 Qg8 Re4 Qeh2+ Kg4 Qc4 Rh3 Q4e6 Kh5 Ra6 Rhh4 Na7 Qd6 Bc3 Qf4 Rd6 a6 Rd4 Rh3 Ra4 Qh4 Qd2 Rh1 Qdh2 Ra1 b1N Qh3 Na3 Rb1 Kf7 f6 Nc4 Qh4 Ba3 Qh3 Kg8 f7+ Kg7 Qh4 Kf6 Qh3 Bfh6 f8N Qf5 Ne6 Bf8 Ned4 Qff4 Nf5 Be5 Qh4 Ke6 Qh3 Nec6 Be7 Nd8 N5d4+ Kd5 Qh4 Rd6 Qh3 Bef6 Kg6 Qfg4 Qh6 Nb7 Kf7 Nd8+ Ke8 Qhh3 Nc6 Qh2 Rf4 Ke6 Rd4 Kf5 Re4 Be5 Bf6 Bgf4 Bg5 Bf6 Bh4 B4g5 N6d4+
2rb1Bn1/KNN1b1R1/3k4/2nNbrq1/4Pn2/Bnr2P2/QRB1rr2/6r1 b - - 0 1 legal: proof: f4 a5 d4 e5 b4 exf4 d5 axb4 d6 f3 e3 f2+ Ke2 cxd6 Kd2 d5 Bd3 f1N+ Ke1 d4 Bg6 h5 Bd3 f5 Nc3 f4 Bb5 b6 Nb1 f3 Bd3 Bb7 Qe2 f2+ Kd1 Bc6 Qg4 Bf3+ gxf3 hxg4 Ke2 Ke7 h4 g5 a4 d5 c4 b5 c5 g3 e4 g2 h5 b3 c6 b4 h6 b2 h7 g4 c7 b3 c8Q g3 a5 Ne3 a6 f1R a7 Nd7 Rh5 Rf2+ Ke1 Nc5 Be2 d3 Kd2 d4 Qb7+ Kd6 Qf7 Nd5 Rh4 Rc8 a8N Be7 Qf5 Nf4 Nh3 g1B Qg5 g2 Nc7 Bh2 Ra2 g1B Na3 b1R Qg2 b2 Rg4 Ra1 Rg7 b1N+ Kd1 d2 Kc2 d1R Rb2 Nd2 Bd3 Ra2 Nc4+ Kd7 Na5 Kd6 Rg4 Ra3 Rg7 Bg3 Qh2 Re1 Qg2 Ree2 Qh2 Nh5 Nf4 Rb3 Nfd5 Be5 Qg2 Nf4 Qh2 Nh6 Qg2 Rf8 h8B Ng8 Rg3 Rb7 Bg7 Rf5 Bf8 Rb3 Rg7 Ra3 Rb5 Rb3 Ba3 Rc3+ Kb2 Bh2 Bc2 d3 Ka2 Bf6 Rb2 Nb3 Qh1 d2 Bb4 d1R Ka3 Ng2 Ne6 Bhe5 Nec7 Nf4 Qf1 Rdd2 Qc1 Rd1 Qb1 Rg1 Qa2 Kd7 Rg4 B7d6 Rg2 Qe7 Rg7 Ncd3 Ka4 Ndc5+ Kb5 Bg5 Kb6 Bh4 Rg5 Qg7 Rg2 Bd8 Ka7 B6e7 Ba3 Kd6 Rg6+ Qf6 Rg7 Qg5 Nb7+
rBQ2n1r/N5R1/2b4b/1R4n1/1kNn2Pn/n4P2/K1nN2B1/2b1rrrR b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 h4 g5 a4 gxh4 Bc4 b5 Bf1 b3 Rh2 b4 Rh3 Qb6 Rh1 Qb5 axb5 Ra6 Bd3 Ra4 Bf1 Ra8 Kd2 e5 c4 Ke7 g4 Kd6 f3 Kc5 b6 d5 b7 h5 Ra6 b2 Kc2 h3 Kb3 e3 Rh2 e4 Rf2 h2 Bg2 h1R Re6 h4 Ne2 d3 Bd2 h3 Nf4 d4 Ra6 h2 Rd6 e2 Bf1 e1B Qc2 e3 Bh3 e2 Be3 d2 Rf6 d1R Bf1 Nd7 b8R Bd2 Rd6 e1N Nd5 Ngf6 Na3 b1N Qg6 Ne4 Bg2 Rg1 Nb6 h1R Nd5 Nc2 Ne7 Bc1 Qg7 Rde1 Re6 Nbd2+ Ka2 Ng5 Bf4 d3 Rf1 Nb3 Nc6 d2 Re7 d1N Qc3 Nde3 Na5 Bh6 Rg7 Nf8 Nb1 Bd7 Nd2 Nbd4 Rb6 Nef5 Bb8 Nh4 Rb7 Na3 Qc2 Bc6 Qf5+ Re5 Qc8 Nac2 Re1 Rf1 Rd1 Rhg1 Rb6 Nb3 Rbb7 Ree1 Rb5+ Kd4 c5 Kc3 Ra7 Nbd4 Rg7 Na3 Nac4 b3+ Ka1 b2+ Ka2 Bd7 c6 b1N c7 Bc6 Qa6 Nac2 c8N Nba3 Na7 Nh3 Rh5 Kb4 Qc8 Re6 Re1 Ng5 Re5 Re8 Rd5 Ree1 Rf5 Nhg6 Rh1 Nh4 Rb5+
1Kn3qk/3R2Bb/1RN2B1P/5n1r/8/rq1NbR2/2rbQpP1/1nr1q2N b - - 0 1 illegal: No possible last move, all moves rejected
5kqb/b1P1R1bn/NB6/5q1p/nrB2r1R/P1Q1rRq1/7b/K3nNB1 b - - 0 1 legal: proof: g4 f5 e4 fxe4 h4 a5 d4 c5 f4 cxd4 f5 b6 b3 Ba6 b4 axb4 h5 Bc4 h6 Be6 f6 Bf5 gxf5 Qc7 Bh3 Qf4 Bg2 Qxh6 Bf1 Qh2 c4 g5 a3 h5 c5 e5 c6 d5 c7 b5 Ra2 e3 Qe2 e4 Kd1 b3 Nf3 d3 Bh3 b2 Qf2 g4 Nd4 e2+ Kd2 e1B+ Kd1 g3 Qe2 g2 Bd2 g1B Nc3 b1R+ Bc1 b4 Qg4 d2 Kc2 d1N+ Nde2 e3 Bb2 d4 Qf4 d3+ Kb3 d2 Qg4 Nf2 Na4 d1Q+ Kc4 b3 Bg2 Bc3 Ra1 Qd8 Qf3 Nd7 Nf4 e2 Nd5 e1B Ne3 Nc5 Bf1 Bg7 f7+ Kf8 Bc1 Qg2 Rh4 b2 Be2 Bh2 Nf1 Rb8 Be3 Nfd3 Bg1 Rb3 Qc6 Bcd4 Qf6 Bdf2 Qc3 Nf6 Ra2 Nh7 Ra1 Ke7 f8R Qg3 Re8+ Kf7 f6 Rf8 Re7+ Kg8 Ra2 Bd4 Ra1 Bef2 Ra2 Bh8 f7+ Kg7 Ra1 Re1 Ra2 b1Q Rb2 Rb8 Rb6 Qc8 Rf6 Rb6 Rf3 Qf5 Bd1 Re3 Bb3 Ne1 Ba2 Rb2 Bb3 Qa2 Kb4 Nd7 Nc5 Nb6 Na6 Na4 Kc4 Rg8 Kb4 Kf8 Kc4 Rg6 Kb4 Rf6 Kc4 Kg7 f8B+ Kg8 Bg7 Rf8 Bh6 Bdg7 Bg5 Rf7 Bf6 Kf8 Bd4 Rb1 Bb6 Rf6 Kd4 Rb2 Bc4 Rb1 Bd3 Qg8 Bc4 Rb4 Qd3 Nb2 Kc3 Rf7+ Kd2 Na4 Kc1 Qc8 Qb3 Rf4 Kb1 Qd7 Qb2 Qf5+ Ka1 Re6 Ba5 Ba7 Qc3 Re3 Bb6
kR1Q3N/6np/3r1n2/1b2KnRP/1r1Nb3/4q1PB/b1rnR3/3NB1bb b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Ke2 Kd7 a4 Kc6 d4 f5 h4 b5 h5 Kb7 d5 e5 d6 c5 d7 b4 g3 f3+ Ke3 c2 a5 c4 Qd6 c3 Qh6 b3 Ra2 f2 Bg2 f1B Bh3 f4+ Kf2 b2 Qg7 e3+ Kf3 e2 Ke4 e1Q+ Ne2 f3 Rh2 f2 Ra3 Bg2+ Kf5 f1B Ng1 e4 Qd4 e3 Qf6 e2 Qe6 Bh1 Bd2 c1N Qe8 c2 Bc3 Nc6 Rg2 Rb8 a6+ Ka8 a7 Bc5 Bd4 Bb7 Rf2 Nd3 Bf6 c1R Rf4 Nce7+ Ke6 Nf5 Rg4 Rc2 Bc3 Nf4+ Ke5 Nf6 Rb3 Ne6 Nf3 Neg7 Rb6 Be4 Rg5 Bg1 Nd4 Qf2 Qf8 Qe3 Be1 Qc8 Qd6 Rd8 Nc3 b1B Nd1 Ba2 Qf8 Rb7 Qe7 Qb8+ Qd6 Rdc8 d8N R8c6 Qc7 Rd6 Nf7 Bb1 Qd8 Ba2 Bb4 e1N Nh8 Ng2 Be1 Ngh4 Ra6 Rb4 Rc6 Kb7 a8R Bfc4 Raa6 Bb5 Rab6+ Ka8 Rc3 Qe2 Re3 Nf3+ Kf4 Qd3 Re2 Nd2 Ke5 Qe3 Rxb8+
BNn5/P3bBq1/1q1bNbR1/2q5/1b2r2p/2b1k1B1/KPr1Rb2/2QR3n b - - 0 1 illegal: No proof kernel
NK1Nrq2/3q1R2/Q3n1n1/2Pr1nkB/2Pp2rN/1n4R1/2r3bB/2nR1b2 b - - 0 1 legal: proof: h4 e5 f4 exf4 b4 a5 b5 g5 Nh3 gxh4 Ng1 a4 b6 Bb4 c4 Bc3 Qb3 axb3 dxc3 cxb6 Rh2 b5 Rh1 b4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 b5 Kd6 f3 g4 b2 e4 h3 a4 f2 a5 h4 a6 b3 c5 h2 c4 h3 a7 b4 Be2 f1Q Ra4 Bb7 Ra6 Nc6 Bf3 Rh4 Ne2 Nd4 Nbc3 b1N Ng1 b2 Be3 b3 Nce2 Nc3 Ng3 b1R Bf4 b2 Ra5 Rd1 N1e2 b1N Bd2 Na2 Nc3 Nc1 Be2 Ne6 Na2 Ne7 Nb4 Ng6 Nc6 Qf3 Rf1 h1R Ra1 h2 Nf5 Qf4+ e5+ Kg5 Rf2 Rhg1 Bf3 h1N Be2 Qe8 Nd8 Rh2 Nh4 f5 Bf3 Rb8 a8N Ng3 Be2 Bg2 Rf3 Nd4 Kc7 d5 Bc3 Qd2 e6 f4 e7 Qf8 e8Q Ngf5 Qe6 Qd3 Qc6 Nd2 Qa6 N2b3 Be1 Rd2 Bg3 Rc2 Rf2 f3 Be5 Rhh1 Bh2 Rc8+ Kb7 Ne6 Rf1 f2 Bd1 Rc6 Kb8 Rd6 Be2 d4 Rd1 f1B Rb1 Na1 Rb7 Nab3 Rg7 Qe4 Rf7 Qc6 Bf3 Qd7 Be2 Bd5 Bf3 Rg3 Be2 Bdg2 Bf3 Kf4 g5 Rd5 Bh5 Be2 Qa7 Re1 Qa3 Bef1 Qa6 Ne7 g6 Kg5 g7 Ng6 g8R Rg4 Qa4 Neg7 Qc6 Re8 Qa6 Ne6 Rgg7 Nd6 Rf3 Nf5 Rg3 Ne7 Rh7 Nf5 Rf7
6r1/4KN2/2NnR3/rRQ1B1k1/q1r1PrP1/1Rnb2p1/q4q2/bB1qnB2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 g4 b5 axb5 g5 f4 gxh4 Qd3 exf4 Qg3 fxg3 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf4 h5 c4 a5 e4 d3 b4 a4 c5 a3 c6 d2 c7 d1Q b6 a2 b7 h3 b5 h2 b6 h4 Be2 d4 Nh3 d3 Na3 d2 Nb1 Ra5 Ba6 Nc6 b8R Nh6 b7 Rg8 Bb2+ Nd4 Nc3 Nf3 Na4+ Qd4 Bf1 Bg7 Ba6 Ne1 Bd3 Nf5 Ng5 h3 Nf3 Nd6 Rg1 h1R Bb1 h2 Nc5 Qa4 Ne6 d1N Nfg5 Nc3 Nd8 Qb6 Nc6 Qf2+ Nf3 Be6 c8B Bc4 Be6 Bf1 Bc4 Bd3 Re8 Kg6 b8Q f5 Qc7 Bd4 Rf1 Rg1 Qa7 h1Q Qc5 Qhg2 Ba6 Rh1 Rg1 Rh7 Rb8 Rc7 Rb3 Qgf1 Bc4 Q1e2 Rh1 Qd1 Rh7 Rcc8 Rhb7 Bg7 R7b5 Kf6 Bc2 Rc7 Rc1 a1Q Bb1 Q1a2 Ba1 Bc2 Bf1 Bd3 Nd8 Bh8 Nf7 Bg7 Qb6 Rc4 Qc5 Ke7 Kg5 f4 N3e5 f3 Kf4 Kf6 Nc6 Kg6 Bb2 Bf8 Ke5 Bg7+ Ke6 Bh8 Nfe5+ Kg5 Kd7 Qfd2 Ke7 f2 Be2 f1R Nf7+ Kg6 Ba1 Rf4 Bf1 Qf2 Rc2 Ne2 Be5 Nc3 Rcb2 Bg7 Rb6 Bh8 R3b5 Bg7 R2b3 Bh8 Nfd8 Kg5 Nf7+ Kh4 Qa3 Ne2 Nb8 Nb7 Re6 Nd6 Bd4 Be5 Qc5 Bg7 Be3 Ba1 Nc6 Nc3 Bd4 Qg2 Nfd8 Qgf2 Be5 Kg5 Nf7+
q5r1/B1B1rBnq/2k3nq/1bPbQN2/pR2b3/P1K5/2n2Rq1/2b2NR1 b - - 0 1 legal: proof: c4 d5 f4 e5 g4 exf4 b4 h5 d4 hxg4 b5 c5 b6 cxd4 c5 d3 Qxd3 d4 Qd1 d3 Nc3 Qxb6 Nb1 Qd8 Kd2 Kd7 h4 b5 e4 a5 h5 f5 e5 g5 a3 b4 e6+ Kc6 e7 g3 e8R g4 h6 f3 h7 f2 Nf3 a4 Rg1 g2 Re4 b3 Ng5 g3 Re5 f4 Re8 b2 Re5 f3 Qe2 Bb7 Rf5 Na6 Ra2 Nc7 Rd5 Ne7 Nc3 b1B Qe3 Rg8 h8B Ne6 Rf5 Ra7 Bg7 Qa8 Nd1 Ng6 Bgb2 Bh6 Ra1 Ng7 Rh1 g1Q Rh5 g2 Be2 f1Q Be5 f2 Nf7 Qh1 Kc3 g1Q Nd6 d2 Rh4 Qfg2 Rb4 f1B Rf2 Qg1h2 Bh5 Bb5 Nf5 Be4 Bc7 Qd6 Qe2 Qe7 Nde3 d1N+ Kd4 Qhh2 Nf1 Ne3 Kc3 Nc2 B1f4 Qeh4 Bfe5 Bc1 Bb6 Q4f4 Bec7 Qh6 Qe3 Qh7 Qd4 Qf4 Qe5 Qfh6 Rab1 Kd7 Ra1 Bbd5 Rab1 Rb7 Ba7 Kc6 Ra1 Nf8 Bf7 Ng6 Bcb8 Rd7 Bc7 Re7 N1g3 Bf4 Rg1 Bc1 Nf1
B4q2/3rP2q/1Qb3N1/1B1r2pP/R4nbn/nrb2N2/3BRK1k/2bN2n1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 h4 Ke7 e4 Ke6 c4 Ke5 c5 f5 h5 g5 b6 d5 c6 f3 b7 f2+ Ke2 d3+ Ke3 f4+ Kd2 b3 c7 b2 Ra7 g3 Ra1 f3 Ke3 d2 Bb5 f1N+ Kd3 Kf4 e5 f2 Ke2 d4 e6 g2 e7 Kg3 Ra7 Ne3 Ra6 Nc6 b8N Nf5 Ra4 Ne5 Ra7 Bg7 Rb7 Nh4 Ra7 d3+ Ke3 f1B Ra2 Nf6 Ra5 Bg4 c8B Nd5+ Ke4 Nf4 Ke3 Nef3 Nh3 Ra7 Bbd7 g1B+ Nf2 Bg2 Ra6 Bc3 Qe2 d1Q Ra2 d2 Ra4 Qc2 Nc6 d1R Nd2 b1N Rh2 Qh7 Bb7 Na3 Ba8 Rb7 Qc4 Rb3 Qe6 Qc8 Qg6 Rd8 Ne5 Bh1 Bb5 Rd7 Qb6 Qf8 Ng6 Bg2 Nb1 R1d6 Nd2 Rd3+ Ke4 Bh1 Nd1 Be3 Re2 Bg2 Nc4 Kh2 Ne5 R3d6 Bd2 Rd3 Be1 Bc1 Bd2 R3d6 Ke3 Ng1 Kf2 Bc6 Rb4 Rd4 Ra4 R4d5 Nf3+
n1RQ1r2/2qpb3/1NPnB1N1/Bb4Rr/3K2n1/1qR1Pr2/2b5/kn1N1b2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 Ke7 Kd3 Kf6 c4 Ke5 g4 f5 g5 h5 b6 f3 c5 f4 c6 f2 b7 h3 g6 f3 g7 b3 Bg5 h4 Be3 b2 Qe1 h2 Nc3 b1N Bg2 f1R Ra2 h3 Ra4 f2 Bc1 Ne7 g8N Qc7 Bd5 Nf5 Ra3 Nd6 Nd1 Na6 b8R Be7 Qd2 Rh5 Kc2 d3+ Kb2 Kd4 Qh6 d2 Ne3 d1B Be6 Bc2 Nf6 Bb7 Rg8 Rf8 Nfd5 Bc8 Nb6 Bb7 Ra5 Bc8 Ka1 Kc3 Nf3 Bb7 Rhg1 h1Q Qg5 h2 Ne5 Qf3 Ng6 h1N Rg3 Qd5 Qh4 Qb3 Rag5 Qb8 Rf3 Rf6 Bg4 Nc7 Bf5 Na8 Rg1 Qc7 Be6 Ba6 Rc8 Bf8 Qg5 Rf5 Qd8 Be7 Rg5 Bb5 Ba3 Rf8 Nd1+ Kd2 Bb4+ Kc1 Rgf5 Ng3 Re5 Ngf5 Ba5 Ne3 Rg5 Ng4 Rd3 Rfh1 e3 f1B Bg8 R1h3 Be6 Qd5 Rb3 Rhf3 Ka2 Nc3+ Ka3 Nb1+ Kb4 Qd3 Kc5 Qc3+ Bc4 Qb2 Rc3 Qb3 Nf2 Kb2 Kd4 Ka2 Nd1 Ka1 Be6
2rN1b2/P4br1/b1kB2r1/2nRqq1n/PqQ2p1R/1q2NBN1/7K/3r1R2 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 bxa5 b5 d4 bxc4 h4 c5 h5 cxd4 h6 gxh6 Kf2 h5 Ke1 h4 Kf2 h5 e4 d5 a4 Kd7 g4 f5 Kg2 d3 e5 d2 a6 c3 e6+ Kc6 e7 f3+ Kh2 d4 e8N f2 g5 c2 g6 h3 a7 d3 g7 h4 Nc3 Ba6 Qf3+ Qd5 Nb5 d1R Qf4 d2 Nc3 Nf6 g8R Qe5 Rg3 Rg8 Ba3 c1R Bd3 f1Q Nce2 Nbd7 Rg7 Nc5 Rb7 Rc8 Rf7 Rg7 Bc2 Nh5 Nf3 Rb1 Ng3 Rb6 Qb4 f4 Bf5 Qb5 Qc4 Qb4 Bg4 Qf5 Ne1 Qe5 Kg1 h2+ Kg2 Qf5 Rd7 Qe5 Rf1 h1B+ Kh2 h3 Nc2 Bd5 Ne3 Bf7 Rd5 Qf5 Bf3 Qe5 Kh1 h2 Nc7 Qf5 Ne6 Qe5 Kg2 h1Q+ Kf2 Qh3 Kg1 Qhf5 Kh2 Rc1 Ra2 d1Q Rg2 Qdb3 Nd8+ Kc7 Rgg1 Rd1 Rh1 Rbg6 Bb2 Qee6 Be5+ Kb6 Bd6 Qee5 Kg2 Rd4 Rh4 Rd1 Ne6 Kb7 Kh2 Kc6 Nd8+
NbKB3n/bB1n2r1/2PR3b/2n5/B3r1R1/1n3p1R/1nb1N1PQ/2nkq3 b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Qb3 gxh4 Qc3 b5 axb5 dxc3 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 d5+ Kd4 Kf5 b6 h5 b7 a4 b5 a3 e3 c2 b6 h3 c5 a2 c6 h4 Bc4 h2 Na3 h3 Nb1 f3 Bb5 f2 Na3 f1N Rb1 a1B+ Bb2 c1B e4+ Kf4 e5 f5 e6 Ra4+ Bc4 Be3+ Kc3 d4+ Kd3 Nd7 b8R Qe7 b7 Nh6 Rd1 Nd2 Nb1 Rg8 Nc3 Nb3 Ba6 Rg7 Rc1 Nf7 Nb1 Nh8 Kc2 d3+ Kc3 d2 Na3 Ba7 Ne2+ Ke3 Nb5 f4 Rcd1 f3 Nc7 Re4 Na8 Qh4 e7 Qe1 e8B Kf2 Rg1 h1N Bf7 Ng3 Rh1 h2 Kd3 Bd6 Bf6 Bf4 Bg8 Bae5 Bd8 Bh6 Bgc4 Bc7 Bcb5 Be5 Ba4 Bef4 Rc1 d1N Rc4 Bc7 Rd4 Be5 Kc4 Nb2+ Kb5 Bc7 Ng1 Ne2 Rd6 Nec1 Ne2 Ke3 Rg6 Kd2 Rg4 Qh4 Rd1+ Kc2 Rd3 h1N Rd6 Nf2 Rd4 Nb6 Rd6 Bf5 Rc8 Qg3 b8Q Nfd3 Bb7 Qe1 Ka6 Bg6 Re6 Be5 Rd6 Kd1 Rc7 Bh7 Rf7 Nd7 Rf5 Qg3 Rh5 Qe1 Rh3 Bh2 Bc8 B2f4 Kb7 Bg6 Kc7 Bg3 Ba6 Bh7 Kc8 Bh2 Re6 N3c5 Bb7 Bg6 Qg3 Bf5 Qh4 Bhb8 Qg3 Rb4 Qc7 Bc2 Qh2 Re4 Rd6+
K1Bq2B1/1nr5/2Qb4/nNn2R1q/qR2bN1P/pn1k1q2/3Pn3/2b1BN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g3 h5 Nc3 a5 Nb1 h3 Nc3 h4 Nb1 h2 Bg2 h3 Bf1 Rh4 gxh4 Ra6 Qb3 Rh6 Qd1 Rh8 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 b3 f5+ Ke5 f3 e4 f4 Bb2 f2 Ra2 c3 Nf3 c2 Bb5 f1N Bc3 c1N Rg1 h1Q Ra3 h2 Rg7 Bf5 Ba6 Rh7 Qe1 Ne7 Ba1 Ne3 Qe2 Nc8 Rg5 Qd1 Qg2 h1N Nc3 Nd6 Nb5 Nb7 b4+ Kc4 Nh2 c5 Bd4 f3 Rb3 a3 Nf1 a4 Rb2 Bg6 Rf5 f2 Ke6 a2 e5 a1Q Qc6 Nb3 Rb1 N7a5 Bc8 Nd7 Rb2 Re7+ Kd6 Ng3 e6 Kd3 Rb1 Rg7+ e7 c4 Be5 Ne2 Bg3 c3 Rb2 Qe8 Kc7 Ndc5 Kb8 c2 Ka8 Qd8 e8B c1B Bf7 Bd6 Bg8 Nab7 Rh5 Ned4 Nh2 f1Q Nc7 Nc4 b5 Be4 b6 Nca5 Nb5 Rc7 Rf5 Qh5 Be1 Qff3 Nf1 Ne2 Rb1 Nbd4 Rb2 Qde8 Rb4 Nd8 b7 Ndb3 b8N Ndb7 Nd7 Qd8 Nb6 Qa3 Rc4 Qb4 Nd5 a3 Rd4+ Kc2 Nf4 Qc4 Nd5 Qa4 Rb4 Kd3 Nf4+
1q1n2KR/Nq5n/2B2P1Q/2P3B1/R5rN/2kb1npn/5nBr/1Nq1r2r b - - 0 1 legal: proof: d4 a5 h4 g5 e4 h5 g4 f5 b4 fxe4 d5 axb4 d6 cxd6 Na3 d5 Bh3 d4 Bf1 Bh6 Nb1 hxg4 Bg2 g3 Bh3 g4 Bf1 Bg5 hxg5 Kf7 Bd2 Kf8 Bc1 Ke8 Kd2 Kf7 c4 Ke6 a4 Ke5 g6 d5 a5 b5 f3 e3+ Kd3 g2 g7 g3 c5 b3 a6 b4 a7 b2 Qa4 b3 Qa5 e2 Qa2 e1R Rh7 Ba6+ Kd2 d3 Kc3 d2 Bc4 d1R Rh2 d4+ Kb4 d3 f4+ Kd4 f5 e5 Qa3 e4 Qa4 e3 Na3 b1Q Bd5 d2 Rh7 e2 Ra2 b2 Qc6 Bd3 Qh6 Nf6 g8N Nc6+ Kb3 Qf8 Ne7 Nd8 Bc6 Qa1 Nc8 b1Q+ Rb2 Rg8 Rh8 Nh7 f6 Rg4 Kb4 Qg8 Rb3 Qbb2 Nb1 Qe8 Bd7 Qa6 Bc6 Qc2 Ra3 Qb7+ Nb6 Rc8 a8B Qe5 Ra4 Qeb8 Nh3 g1N Nf4 Rc7 Ng2 Nh3 Nh4 Rh1 Bg2 Rde1 Bc6 d1N Bg5 Ndf2 Bg2 Bb5 Nc8 Qc1 Na7 Rh2 Bc6 Reh1 Bg2 e1N Bc6 Re7 Bg2 Qd7 Bac6 Nf3 Nc3 Ree1 Nb1 Qcf4 Kb3+ Ke3 Kc3 Qdb7 Kb3 Bd3+ Kc3 Be4 Kc4 Bd3+ Kd5 Ke2 Rb4 Qc1 Ra4 Q8a8 Kd6 Qbb8+ Ke7 Kd1+ Be3 Kc2 Ke8 Kb3 Ke7 Qab7+ Ke8 N7g5 Kf8 Kb2 Kg8 Nh7+ Bg5 Kc2 Na3+ Kc3 Nb1+
Q4N2/q3rBn1/P1n1nR1N/1r2Pb2/K1N1Rn1R/nB5r/p5r1/2k1n1r1 b - - 0 1 illegal: No proof kernel
N4b2/2Kp1pRP/N2n3q/1R1BRr2/q1nn1P1r/1bBQ3q/r3k3/1bB5 b - - 0 1 illegal: No possible last move
q3N3/1nr1B3/1r2k2Q/b1Rb4/qP2BpNp/1Bn3q1/qr1N1Pb1/1RK5 b - - 0 1 legal: proof: b4 c5 a4 d5 h4 g5 e4 dxe4 c4 gxh4 a5 b5 cxb5 c4 b6 c3 b7 Qxa5 Ra3 c2 Ra2 Qd8 Ra1 Na6 b8R Nxb8 d4 Kd7 Kd2 h5 g4 e5 d5 a5 g5 f5 g6 h3 d6 h4 g7 f4 Ra2 e3+ Kc3 e4 Kb2 h2 Ra1 e2 Nf3 e1Q Be3 c1R Qd4 a4 Bd2 e3 Bd3 e2 Qf6 a3+ Kb3 a2 Kb2 Be7 Qf7 Rh6 Qh5 Bb7 Nd4 Bd5 Rg1 h1B Nc2 Ke6 d7 Nc6 Bg6 Qd1 Qg5 e1Q Rg4 Qe3 Bc3 Bhg2 Be4 Nf6 Nd2 Na5 Rb1 Qg3 Ne3 Nb7 Be5 Qe8 Bd6 Bd8 Be7 Ba5 g8B+ Qf7 Qh5 Rc7 Rg5 Qa4 Ng4 Rg6 Qh6 Rac8 Bc2 a1Q+ Kc1 Ne4 Rf5 Nc3 d8N+ Kd7 Re5 Rb6 Ne6 Qe8 Rg5 Q1a2 Be4 Ra8 Ng7 Ra7 Bgh7 Qa8 Ne8 Raa6 Bhg6 Ke6 Bc2 Rbc6 Bd1 Rab6 Bb3 Rc4 Rf5 Re4 Rg5 Re2 Rf5 Bc4 Rc5 Bcd5 Nc4 Rb2 Nd2 Qh2 Nef6 Qh3 Be4 Qg3 Ne8+
4K3/5nq1/n1r4b/r1k1p1n1/2NQ4/2RP1p1R/BPBbN1q1/Nr3qnR b - - 0 1 legal: proof: e4 b5 c4 d5 f4 dxc4 a4 bxa4 e5 g5 e6 fxe6 Ra3 e5 Ra1 e4 g4 Bd7 d3 Bb5 f5 Bd7 Bf4 gxf4 h3 Be6 g5 Bf7 Qc1 Bh5 Qd1 Bg4 hxg4 Qd4 Qc2 Qd6 Qd1 Qd8 Ke2 Kd7 f6 Kd6 f7 a5 g6 c5 g5 e5 g7 h5 g6 h4 Kd2 a3 Kc3 a2 Ne2 e3 Nc1 e2 Rh2 e1N Qe2 h3 Na3 a4 Qe3 Qd7 Rd2 h2 Qh3 h1Q Qh5 Nh6 g8B Qg2 g7 Na6 Ne2 Nf3 Qg4 Ng5 Nc2 f3 Bh7 a3 Re1 a1R g8R Rb1 Na1 a2 Rc2 Rc8 Be4 Rc6 Bd5 Bg7 f8N Nhf7 Qd4 Bh6 Rg7 Qe7 Nd7 Ra8 Nb6 Qd7 Kd2 c3+ Ke3 c4 Rh7 Ra7 Rcc1 c2 Rh8 c3 Rh7 Nh3+ Ke4 Qc7 Kf5 Nhg5 Kf6 Qb7 Rcd1 c1B Rh8 Bd2 Rc1 c2 Nc4+ Kc7+ Ke7 Ra8 Nb6 Ra7 Ke8 Kd6 Qh4 Kc5 Nc4 Qh1 Bh3 Qg2 Rh1 Qc7 Bd7 Qb7 Rcf1 c1N Rh3 Qc7 Rfh1 Ra8+ Ke7 Ra7 Rc8 Qb7 Ke8 Qc7 Nc3 Ne2 B5e6 Ng1 Ne2 Nb8 Qf4 Ra5 Qg4 Na6 Bd5 Rd6 Ba4 Rc6 Bc2 Nd8 Rb8 Qg7 Rb3 Ndf7 Rc3 Kb5 Nb3 a1Q Be6 Qa2 Na1 Kc5 Bb3 Qa4 Ba2 Qd1 Qd4+ Kb5 Bb3 Qdf1 Bc2 Kb4 Nb6+ Kb5 Bc4+ Kb4 Ba2+ Kb5 Nc4 Kb4 Qd7 Kc5 Qd4+
1rB4Q/nR1R4/N1n2K2/2PN2nq/3r3p/P3bpB1/n4q1q/1NB2bkb b - - 0 1 legal: proof: d4 a5 h4 d5 f4 e5 b4 exf4 e4 axb4 Qg4 g5 Qd1 gxh4 exd5 c5 Bb2 cxd4 Ba3 Ra4 Bc1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 f5 c4 b5 a3 d3 g5 d2 g6 h3 g7 b3 d6 h2 d7 f3 Ne2 f2 Nec3 h4 Nd5 f4 Qh5 d1Q Nc7 b2 Qe2 b4 Bd2 b3 Bg2 f1B Ne8 Qf6+ Ke4 Ne7 d8B Bb7+ Kd3 Nc8 g8N Nc6 Ke4 Bh6 Ng7 Rb8 Bc7 N8a7 Qd3 Qh5 Nc3 b1N Ra2 b2 Ne7 Rhd8 Ne8 Qf8 Rg1 h1Q Ned5 Qh2 Bh3 Rd6 Bc1 Rd7 Qe2 Nd2+ Kd3 b1N Rg7 Nf3 Ke4 Rdd8 Qb2 Ba8 Rf7 Ng5+ Kf5 Kd4 c5 Rd7 Kf6 Bb7 Ne4+ Nc3 Nd2 Kd3 Ra1 Ke2 Rb1 Kf2 Be6 Rdd8 Bc8 Na2 Qa1 Ba8 Rb7 Kg1 Nb1 Rd7 Nb4 Rd4 Nd5 Qh8+ Rg7 Qf3 Bd6 Qff2 Nec7 Qe8 Na6 Qh5 Ne7 Ne5 Rd7 Bh1 Nd5 f3 Rb7 Nec6 Rgd7 Nh3 Qb2 Be3 Bg3 Ng5 Qc3 Rd2 Qe5 Rd1 Qe8 Rd4 Qh8
1R2br2/1nq1n1kq/rR3n1q/1P1Np1B1/p7/2QNNBKR/2b2n1P/5b2 b - - 0 1 legal: proof: e4 b5 a4 bxa4 d4 f5 b4 fxe4 g4 c5 g5 cxd4 g6 e6 b5 Bb4+ c3 hxg6 cxb4 g5 Be3 g4 Bf4 Kf8 Bc1 Ke8 f4 Kf7 Kf2 g5 f5 a5 b6 d5 b7 e5 b5 e3+ Kg2 a3 f6 e2 Bd2 e1Q Bc3 g3 Ne2 a4 Nd2 a2 Bb4 g4 Nf3 d3 Nc3 d2 Ba3 d4 Nd5 d3 Rb1 a1N Nd4 Qc7 Be2 Nc6 b8N Nce7 Rf1 Bd7 Ne6 Be8 Bd6 Ra6 Nc3 Nb3 Nd7 Na5 Qc1 d1B Qg5 d2 Bc5 Nb7 Nf4 Bc2 Nd3 d1B Be3 Qd2 Nb6 Kf8 f7 Nf6 Qh5 Kg7 Rb3 Rf8 Nc4 Qc1 Bf3 Be2 Nd5 Qd2 Bc5 Qh6 Be3 Qh7 Rd1 Qh6 Qh3 Bf1+ Kh1 Qh7 Bg5 g2+ Kg1 Qh6 Kf2 g1N Nce3 Qh7 Kg3 Qh6 Qg2 Nh3 Qd2 Nf2 Qc3 Nh5+ Kh4 g3 Rd2 g2 Ra3 Rg8 f8R g1Q Rf6 Qh7 Rb6 Rf8 Rd1 Qh1 Rd2 Nf6+ Kg3 Qh6 Nc1 Nd7 Nf5+ Kf7 Be2 Kg8 Qc4 Ng4 Nf4+ Qd5 Qd4 Qhd6 Kh4 Bf7 Rh3 Qdc4 Qc3 Be8 Kg3 Qf7 Ne3 Qh7 Bf3 Nf2 Rd4 Qdh6 Ncd3 Nf6 Rd8 Kh8 Nfd5 Kg7 Rb8
q4R1K/2r2B2/1nBpNpRN/BP6/1n4P1/2kbqQ1q/1N3q1b/3b1rn1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 e5 f4 exf4 Nc3 c5 Nb1 b5 axb5 cxd4 Ra4 axb4 Ra6 Qb6 Ra1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 f6 g4 f3 c5 b3 e3 b2 c6 f2 c7 d3 Qe2 d2 Ra5 h3 Na3 b1N Kf4 Kd5 Kf5 h2 Kg6 h4 e4+ Kd4 e5 h3 e6 Na6 e7 Rh7 e8N Bd6 Bb2+ Nc3 Qe1 Qe7 Qb1 Qe3 Bg2 f1Q Nc4 Qff2 Ng7 Ne7+ Kf7 Ra7 Qf5 Nd5 Kg8 d1B Bf3 Bb7 c8B Nb6 Qf4+ Be4 Nf5+ Kd3 Ne2 Rc7 Ned4 Ne2 Bc3 Be5 Bb4 d6 Be6 Rh6 Bf7 Rh5 Rg1 h1Q Ne6 h2 Nb2+ Kc2 Rg3 Bd3 Rh3 Qhg2 Qe4 h1Q Rh2 Rh7 Rh6 Qhf1 Rg6 Rh1 Qd5 Bh2 Kh8 Rg1 Qe4 Qh1 Qa8 Qh3+ Nh6 Rf1 Ra3 Ng1 Qc6+ Nc5 Ra8 Kb3 Rc8 Na6 Ba5 Nb4 Rf8 Q1g2 Qe4 Kc3 Qf4 Qh1 Ba8 Qb7 Qf3 Qa7 Be4 Qa8 Bc6
2r1rNN1/bR4nn/1PR2B2/2R1q1bp/k2qP2r/4B3/pQ2n2b/K1Bb4 b - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 c5 h4 Qxh4 e3 f5 Ra5 fxg4 Bc4 Qh2 Bd3 c4 Ra1 cxd3 Kd2 d5 c4 Kd7 b4 h5 b6 Kc6 e4 a5 c5 Kb5 c6 g5 c7 g3 b7 a4 Ne2 a3 f4 g4 f5 g2 f6 g1B f7 a2 Qe1 g3 Qd1 g2 Ng3 Nh6 Qc2 Bg4 c8R Be7 f8B Bg5+ Ke1 Nd7 b8B Nf5 Qc3 Nf6 Nd2 Ng7 Bbd6 Ka4 b5 Nh7 Rc6 Bd1 Nf3 Re8 Nf5 Qe5 Qb2 Bh2 Rb1 g1B Nh6 B1e3 Nh4 d2+ Kf1 d3 Ng8 d4 Bfe7 Bf2 Ng6 Bfg1 Bf6 Rc8 Nh6 Rhe8 Nf8 Bg4 Qa1 d1R+ Kg2 d2 Bca3 d3 Bdc5 Be6 Kf3 Bg3 Ng8 Bb3 Rh3 B1e3 Bc1 Rh1 Rh2 d1N Rc2 d2 Ke2 Rh4 Kd3 Bh2 Rc3 Be6 Kc2 Bg4 Ba7 Bef4 Bg1 Be3 Rbb3 Bc5 Be3 Ba7 R3c5 Nc3 Kb2 d1Q Qb1 Qdd6 Ka1 Bd1 Qb2 Ne2 Rd3 Bg1 b6 Bh2 Rd2 Qdd5 Rd4+ Qc4 Rd7 Qcd4 Rb7
B1B2Nbq/3PP3/1nQ4r/1R2Rpb1/1q1qBpr1/1b1n2Nk/2N2q2/2n4K b - - 0 1 legal: proof: b4 c5 Nh3 a5 Ng1 c4 Ba3 Ra6 Nf3 Rc6 Ng1 Rc5 bxc5 b6 Bb4 b5 g4 axb4 f4 d5 g5 d4 g6 e5 c3 dxc3 Qc2 exf4 Qb3 hxg6 Qc2 g5 Qd1 g4 Kf2 Kd7 Kg2 Ke6 d4 Kf5 a4 g5 h4 g3 e3 c2 h5 c1R h6 c3 c6 c2 h7 g4 c7 b3 d5 b2 d6 b4 a5 b3 a6 Nc6 a7 Nf6 a8B Nb4 Rh6 Be6 c8B Nd3 d7 Be7 Ra5+ Nd5 Nh3 Bg5 Nd2 b1Q Nf2 b2 Ra4 Nb6 Nde4 Bb3 Rb4 f6 Kg1 g2 Qf3 Re1 Rg6 c1N Nd1 Rg8 h8N Qe8 Kh2 g3+ Kh3 g1Q Bg2 Qe5 Rb5 Qf2 Bh1 g2 Kh2 Rf1 Rg7 Rg1 Ng6 Rh8+ Rh7 Bg8 Rh5 Rh6 Nf8 Bb3 Nd2 Bg8 Qc6 Kg4 e4 Qb8 e5 f5 e6 Qa1 e7 b1B Nf1 Bc2 Ng3 Bcb3 Rh3 Qd6 Re5 Qb4 Rb5 Rd6 Rh6 Qe5 Re6 Qh8+ Nh7 Kh4 Ree5 Rh6 Nf8 Qfd4 Ne3 Rf1 Ne4 Rf3 Qc4 Rg3 Qc6 Rg4 Kg1 Kh3 Ng3 Nb2 Kf2 g1Q+ Kf3 Kh4 Nc2 Nbd3 Bg2 Qge1 Bh1 Qee3+ Kg2 Qf3+ Kh2 Qfe3 Bf3 Qf2+ Kh1 Kh3 Be4
2K5/1P2B3/1BRr1qbP/p1n1r1bb/2nk1Qn1/1p5q/4rN1B/1Rr1N1R1 b - - 0 1 legal: proof: b4 d5 c4 b5 f4 h5 g4 hxg4 a3 e5 Bg2 exf4 Be4 Qd6 Bc2 Qd8 a4 bxa4 Bb3 axb3 cxd5 Rh5 Kf2 Rh3 Ke1 Rh8 Kf2 Ke7 d4 Kd6 e4 g5 h4 a5 h5 f5 b5 c5 h6 g3+ Kf3 g2 b6 c4 b7 g4+ Ke2 f3+ Ke3 f2 Kf4 f1N Na3 g3 Qd2 c3 Bb2 c2 Qd3 Ra6 Nh3 g1R Qe2 c1R Qd1 g2 Rb1 Nd7 Qg4 Ne3 Nc2 Ngf6 Ne1 Nc4 Qh4 Be7 e5+ Kc7 d6+ Kb6 e6 Re8 d5 Kc5 Kg5 f4 Kf5 f3 Be5 f2 Bh2 f1B Qf4 Be2 Nf2 Qb6 Nc2 Bd8 e7 Bh5 Ke6 Rgd1 Ne1 Ng4 Rf1 Rd2 Rh1 Rf8 e8R g1Q Re7 Qg3 Rg1 Qh3 Rg7 Qc6 Rg6 Bg5 Rf6 Rh8 Ke7 Rh7+ Kd8 Re7 Rg6 Rde2 Re6 Nde5 d7 Nd3 d6 Kd5 Rg6 Nc5 Rf6 Ra7 Rg6 R7e5+ Rf6 Qa6 Kc7 Ra8 d8B Bf5 d7 Bfg6 Be7 Rf8 Re6 Rf6 d8B Qb6+ Kc8 Qa6 Qf3+ Kd4 Bc7 Qc6 Qf5 Qcf3 Rc6 Rd6 Qf8 Qf7 Bb6 Qg7 Qf3 Qf6 Qf4+
n3b3/1BN2N1Q/1B6/1pn5/1BPkNp1b/r1b5/PrqbR2b/3bRKn1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 b3 a5 b4 axb4 g4 h5 e3 e5 fxe5 dxe3 Ba3 hxg4 Bb2 Qb6 Bc1 Qd8 c4 Ke7 h4 Ke6 h5 g5 h6 f5 h7 b5 Nc3 d5 Nce2 b3 Ng3 f4 Be2 d4 Rh5 d3 Ba3 b2 Bb4 b1N Ne4 g3 Nf3 d2+ Kf1 g2+ Kg1 g4 Nf2 Bg7 Ne1 Nf6 Rh1 Na6 Qa4 d1B Qa5 Bd7 Be7 Be8 Rh2 Nd7 Qd2 Ndc5 Qa5 Nc7 Rh5 Nc3 Bf3 e2 Bf6 Qd3 Be7 Qc2 Ned3 e1B Ne4 Bd2 Qa7 Ne2+ Kf2 g1B+ Kf1 g3 Rh2 Kf5 e6 Bf2 Ne5 Ng1 Nf7 Bgc3 Bf8 Rg8 h8B Rg6 Qb7 Ra3 e7 Na8 Bd4 Rh6 Rg2 Rh2 Rc1 Bfe1 Re2 Ke6 Be5 Kf5 Bc7 Bf2 Bb6 Ke6 Nh8 Ke5 Nf7+ Kd4 Bh1 Bc6 e8N Bfe1 Nc7 Be8 Nfg5 Qb1 Qb8 Bc2 Bf3 Be3 Nd5 Nh3 Rf2 g2+ Ke2 g1B Nd2 Rg2 Qc7 Bh2 Qh7 Ng1+ Kf1 Bb3 Nc7 Qg6 Re2 Bh4 Rce1 Bd1 Nf7 Qb1 Bb7 Qb2 Ba5 Nb3 Bfb4 Nc5 Bb6 Qb3 Ne4 Bc1 Re3 Rb2 Na6 B1d2 R3e2 Qc2 Nc7
1RN1Nr2/2B2rnr/K2Q1Pq1/1B2Pk2/1N3pBn/1r2qp1b/3r2r1/1R3b2 b - - 0 1 legal: proof: d4 a5 h4 f5 g4 e5 f4 c5 b4 axb4 g5 cxd4 h5 Be7 h6 exf4 Be3 Bf6 gxf6 gxh6 Bd2 h5 Bc1 h4 Kd2 Kf7 Kd3 Kg6 Kc4 b5+ Kc5 h5 e4 d5 c4 b3 a4 b2 e5 h3 a5 h2 a6 b4 Kb5 f3 c5 b3 c6 f4 c7 h4 a7 d3 Nh3 d2 Ng1 h3 Qe1 d1B Bc4 d4 Nc3 b1Q Qe3 b2 Ra4 d3 Qd4 d2 Bf7+ Kf5 Rc4 Nd7 Bd5 Be2 Na2 d1R Bd2 Nc5 Kb6 Nh6 Rc2 Rf8 Be1 Rd2 Nb4 Bf1 Bf7 Ne6 Ne2 Ng7 Bh5 Rf7 Nc3 Qc1 Qd6 b1R Bf2 Rb3 Nb5 Qe8 Rb2 Qc3 Rg1 h1R Bc5 Bd7 c8N h2 Ka6 Qe3 Bb6 Rb8 a8B Be6 Rg6 Rg1 Rb1 h1R Bc6 Rgg2 Bc7 Qg8 Nb6 Rbf8 Nc8 Qh7 Rg3 Rh4 Rh3 Qg6 Rh1 Be2 Rb2 Bd3 Rhb1 Bf1 Nd5 Rb4 Bb6 Kg5 Bg4 Rde2 Nbc7 Nhf5 Ne8 Rh7 Bh5 Nh4 Bc7 Bh3 Ba4 Kf5 Bc6 Rc4 Rb8 Rc3 Bb5 Rb3 Nb4 Rd2 Bg4+
5B2/2b2bnp/2rqbn1P/1P2b1Rn/4N1B1/Q4RNb/4Np1r/1K1k1Bn1 b - - 0 1 legal: proof: b4 d5 a3 b5 a4 c5 axb5 cxb4 f4 g5 e4 dxe4 d3 exd3 Bd2 gxf4 Be3 Nd7 Bc1 Nb8 Kd2 Kd7 g4 Ke6 h4 Kd5 c4+ Ke4 g5 a5 g6 e5 h5 f5 h6 f3 g7 f4 c5 a4 c6 a3 c7 a2 Qb3 f2 Bh3 f1B Nf3 Be6 c8B Bd6 Qb2 b3 Ba6 Bc7 Kd1 d2 Bg4 Kd3 Na3 e4 Nb1 e3 Ng5 f3 Qf6 b2 Qe5 Nd7 Qf4 Bh3 Bh5 Ngf6 Nc3 b1B Be8 Nh5 g8N Ndf6 Rh2 Qd6 Bb7 f2 Bh1 Ra6 Bg2 Rc6 Ne7 Rg8 Nge4 Rg4 Nf5 Rh4 Qf3 Bf7 Ne7 Bhe6 Rh1 Rh2 Ba3 Bd5 Rg1 Qf4 Nc8 Qe5 Bf8 Qd6 Bd7 Bc4 Bf5 Bce6 Bg6 Bh3 Ne7 Bhe6 Ne2 Bh3 Nd4 Bhe6 Nc5+ Kc3 Nb7 Bbf5 Nc5 Bh3 Bf5 Kb2 Rc1 a1B Rc2+ Kb1 Rc3+ Kb2 Ne4 Kb1 Ke2+ d1N Kd3 e2 Bf1 Ne3 Rg5 e1N+ Kd2 Kb2 Bg4 Nf5 Re3 Nfg7 Nf5 Kb1 Nfg3 Kb2 Rc3 Kb1 Qe3 Nf3+ Kd1 Bb2 Rd3 Ng1 Nde2 Be5 Qc5 Ka2 Kc1 Ka1 Rf3 Ka2 N4c3+ Kb3 Qe3 Rb6 Kb1 Rc6 Ka1 Kc2 Qc5 Bf4 Nce4+ Kd1 Qa3 Be5+ Kb1
Br5b/nbN1bp1R/1B1n1R2/n3NNPP/2p3q1/2nb4/1K2k1rQ/1B1r4 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Qa4 f5 Qb3 f4 e4 h5 Qf3 gxf3 g4 Ke7 g5 Ke8 b4 Ba6 Ra3 Nh6 Re3 Ng8 Re2 Bc8 Rg2 Qd5 Rg3 Qd8 Rg4 hxg4 Kd1 Ke7 Kc2 Kd6 d4 c5 h4 a5 b6 a4 h5 a3 b5 a2 b7 a1B b6 g3 d5 Ke5 d6 Kd4 d7 g2 e5 c3 e6 c4 e7 f2 e8B f3 Nd2 Ke3 Ba3 Be7 Ne4 Nc6 b8N Nf6 b7 Na7 Be2 f1R Nd2 f2 Bd3 Rd1 Ne4 f1B Ng3 Ne4 Na6 Nd6 b8Q Bb7 Nf3 g1N Nc7 Ne2 Ne5 Qc8 d8R Qg4 Bc6 Rf8 Bc1+ Kf2 Kb1 c2+ Ka2 Re8 Nf5 Nc3+ Ka3 Ke1 Be3 c1N Bb1 Nb3 Bb6 Na5 Rh2 Be2 Rf2 Bd3 Rc8 Rd8 Rf3 Rd7 Rh8 Ke2 Rh7 Rg1 Ne3 Rg3 Rf6 Rg2 Nf5 Rd8 Qc8 Rb8 Qe6 Ba6 Ba8 Bb7 Qd5 Nd1 Qb5 Bd4 Qc5 Nc3 Kb2 Rd7 Nc6 Be5 Qg1 Bd4 Qh2 Be5 Rfh6 Bh8 Rf6 Bc2 Nd5 Ne8 Nc7 Rd1 Nh4 Bd3 Ne5 Nd6 Nf5
qqB5/2rn2r1/1Q1Np3/2r2R1P/k4Pb1/1pq1n2R/Bq1r2NB/R3K1b1 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 g4 h5 b4 hxg4 Bg5 axb4 Bc1 d5 cxd5 c5 Qd3 cxd4 Qb3 Kd7 Qd1 Ke8 a4 Kd7 f4 g5 h4 b5 h5 b3 d6 Kc6 a5 g3 a6 d3 d7 b2 a7 e3 Na3 b1Q Be2 g2 Qb3 d2+ Kd1 g4 Rh4 b4 Qd3 g3 Qh7 b3 Rg4 Nf6 Qg6 Rh7 Rh4 Qb2 Qf7 Nd5 Nc4 Kb5 Nf3 g1R+ Ne1 g2 Rb1 Ka4 Qe8 Bg7 Rh1 Bd4 Bg4 Bc5 Ke2 d1R+ Bd2 Qa5 d8R+ Nd7 Qg6 Qb5 Rg8 Qb8 Nd6 Bb6 Rh3 Bd4 Kf3 e2 Rf8 Ne3 Kf2 Bb6 Bc3 Rd2 Rf5 Rg7 Qe6 Rh1 Bd4 g1Q+ Kf3 Qh2 Ng2 Rc1 Kf2 Rc5 Rf1 Qh1 Ke1 Nd5 Bg1 Ne3 Bh2 Rc7 Bf3 Bc5 Be4 Bd4 Bb1 Bb6 Kf2 e1Q+ Kf3 Qec1 Ba2 Qcc3 Qf6 e6 Ra1 Ba6 Qd8 Be2+ Kf2 Bd4 Nh4 Qe4 Ke1 Bg4 Ng2 Rc5 Rf3 Nc4+ Re3 Qd5 Rh3 Bg1 Qb6 Ne3 Nb5 Qc7 Nd6 Rc8 a8B Qb8 Bb7 R8c7 Ba6 Qda8 Bc8
n1N3N1/Q3p1p1/B1knB1Pb/3qr3/nbB1rPK1/N7/7R/q2nqR1q b - - 0 1 illegal: Other
K5B1/bp1B1n1b/q2QNn1n/P1P5/3Br1Rb/2n1R1pN/b4r2/1k4qR b - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 c5 b4 cxd4 Qe2 axb4 exf5 gxf4 g5 h5 Qg4 hxg4 Kf2 Kf7 c4 d5 a4 e5 h4 f3 f6 Kg6 f7 Kf5 a5 Ke4 h5 d3 g6 d4 g7 b3 h6 d2 h7 d1N+ Kg3 b2 Bh6 f2 Na3 b1B Bg5 d3 Rh3 d2 Be7 Be6 Ra2 Qd3+ Kg2 Nc3 Be2 d1Q Ra1 f1N Rh1 Nd2 Bc5 Nh6 g8B Nd7 Bf1 Re8 Be2 Nf3 Nh3 Nf6 Nc2 Ng5 Bd4 Bc5 f8Q Ngf7 Ra4 Ba7 c5 Bea2 Qd6 Qa6 Kg3 Qc1 Bf3+ Kd3 Bc6 e4 Bd7 e3 Kf4 Qg1 Ra3 e2 Rb3 Nd8 Rb4 Rf8 Ke5 e1B Rc4 Ndf7+ Ke6 Ng5+ Ke7 Rf7+ Kd8 Bh4 Kc8 g3 Kc7 Kd2 Kc8 Kc1 Kc7 Bb6+ Kb8 Ba7+ Ka8 Re7 Ra4 Ngf7 Rb4 Re4 Rb3 Ne2 Re3 Nc3 Ne1 Qf2 Ng2+ Qg1 Ngf4 Bd3 Ne6 Kb1 Qc7 Bc2 Qd6 Nd8 Bf7 Rf8 h8R Bd3 Bg8 Ndf7+ Qb8 Rf4 Qd8 Bh7 Qb8 Re8 Qd8 Re7 Qc7 Rf2 Qd6 Bc2 Rh7 Bg6 Rg7 Bh7 Rg4 Re8+ Nd8 Re4 Ne6
2q3RN/4n1PK/p2p1k1N/1nqr3b/1nnB1Pq1/6R1/1R5r/Br1B2nQ b - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 b4 g5 d4 cxd4 Bc4 gxh4 Bf1 b5 c3 bxa4 b5 Bh6 Rh3 Bf4 Rh2 Bd6 Rh1 Bb4 cxb4 Ba6 Qc2 Bb7 Qd1 Bc8 Kd2 Kf7 f4 h5 g4 e5 g5 a3 g6+ Kf6 g7 d6 b6 a2 b7 h3 b5 d3 Ke3 h4 b6 d2 Qg4 d1N+ Kd2 h2 Be2 e3+ Kd3 h3 Ke4 Nc3+ Kf3 e4+ Kg3 Ne7 Bc4 e2 Qh5 e1R Kh4 e3 Bb3 e2 Nf3 Nd7 b8R Ne5 b7 Nc4 Rg1 h1Q Nbd2 Qg2 Ne5 h2 Bb2 Rb1 Bd1 e1N Nb3 Bg4 Nd4 a6 Ng6 Nb5 Rc8 Qe2 b8B Nf3+ Kg3 Qe3 Ba7 h1Q Nf5+ Qe5 Qh3 Rh5 Bad4 Qd7 Rg2 Qg1 Rh8 Rf8 Qh1 Qc8 Bbc3 Ke6 Bb2 Qec5 Nh6 Rh2 Rg8 Rf5 Nh8 Rd5 Bbc3 Bh5 Bb2 Rc1 Rb1 a1N Bbc3 Nc2 Ba1 Nb4 Rb2 Bf7 Kg4 Rb1 Be2 Qd1 Rg3 Ng1 Bf3 Ne5+ Kg5 Bh5 Nf5 Qe2 Kh6 Kf6 Kh7 Qd1 Nh6 Qe2 Be3 Nc4 Bf2 Qee6 Bd1 Qg4 Bd4+
2r3b1/1k2PB1n/1Rq2p1Q/3q2n1/b1R1nnBn/RNb2q2/1N2NpP1/7K b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h4 g5 Rh2 b5 Rh3 f3 Bf4 gxf4 Kd2 f2 Rh1 Ra6 Kc1 Rg6 Kd2 Rg5 hxg5 Bb7 Qc1 Ba6 Qd1 Bc8 e4 d5 Ke2 Kd7 Kf3 Kc7 c4 h5 a4 h4 e5 b3 a5 b4 e6 h3 a6 b2 g6 d3 a7 d2 a8B b3 g7 h2 c5 f6 c6 d4 Bb7 d3 Qe1 d1B+ Be2 f1N Qd2 Ng3 Nh3 Nh5 Ra3 Qd5+ Kf2 f3 Qe1 d2 Rf1 h1N+ Kg1 f2+ Kh2 Bb4 e7 Bc3 Bb5 Be6 Ra7 Nf4 Be2 Nh6 g8R Nf7 Ra3 Ng5 Bg4 Ng3 Qe3 Nd7 Rga8 Nf5 R8a6 Rc8 Ng1 Bg8 Ne2 Nh4 Kh1 Nf8 Rg1 Bc2 Rc1 Nfh7 Qh3 d1N Nd2 b1Q Ba8 b2 Nb3 Qa2 Qh2 b1Q Bb7 Nf5 Qh6 Nh4 Ba8 Qf3 Bb7 Rd8 Bbc8 Qbb2 Bce6 Rc8 Bf7 Kb8 c7+ Kb7 Nd2 Ba4 Nb3 Qd2 Rc2 Qd7 Rc1 Rd8 c8N Qdc6 Nb6 Rc8 Nc4 Qd2 Nb2 Qdd5 Ra8 Bd2 Ra6 Nc3 Rc2 Nce4 Rc4 Bc3 Rb6+
1Nq5/pQq1B1RN/3Nn1b1/3bqk1b/1p1b4/PbRK4/q1Bn1r1P/4R3 b - - 0 1 legal: proof: c4 c5 b4 cxb4 f4 h5 f5 d5 f6 dxc4 Nc3 exf6 Nb1 f5 Bb2 f4 Ba3 Na6 Bc1 Nb8 d4 b5 g4 hxg4 Be3 Na6 Bd2 Rh5 Bc1 Rc5 dxc5 Rb8 Nf3 Rb6 Ng1 Rh6 Ba3 Rh4 Bc1 Rh8 e4 Ke7 Ke2 Kf6 c6 g5 a3 g3 e5+ Kf5 e6 g2 c7 f3+ Ke3 c3 e7 f2 e8R g4 Ra2 b3 Rc2 g3 Re6 b4 Re7 b2 Re2 c2 Nc3 b1B Qd6 Nf6 Nb5 Bg7 Qb6 Be6 c8N Nc5 Rb7 Nfe4 Qd6 Bb3 Rd2 Ne6 Qc7 Rf8 Rb6 Bd4+ Ke2 f6 Qc3 Qc7 Nh3 g1Q Rd3 g2 Re3 Nd2 Bb2 c1Q Rg3 Qe5+ Qe3 Qcc7 Rg6 Be4 Bc3 Bed5 Kd3 Rf7 Be2 f1B Rg7 Qf2 Rc6 g1Q Ng5 Qg4 Nb6 Bfg2 Bf1 Bgf3 Nh7 Qh3 Nd7 Bh5 Nb8 Bg6 Nf8 Qh8 Nh7 Qhc8 Be2 Bc5 Bd4 Qg1 Bd1 Bg2 Ke2 Kg4 Nd7 f5 Rb6 f4 Bc2 Qb1 Qe4 Qa2 Bf2 Bd4 Kd3 Rf5 Qa8 f3 Bh4 f2 Nb8 Bgd5 Rc6 Kf4 Re1 f1B+ Re2 Bh3 Re1 Bg4 Qb7 B4h5 Rc3 Kg4 Nd6 Rf2+ Ne4 Kf4 Be7 Kf5 Nd6+
Nrb2bR1/n2qQ3/r5pn/nn3n2/1R2pKBp/bB5B/2P1P2N/1R5k b - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 a5 g5 axb4 a4 Qa5 g6 Qd8 Ba3 bxa3 h4 Ra6 h5 Ra8 h6 fxg6 hxg7 Ra7 Rh3 Ra5 Rh1 Ra8 Kd2 Kf7 f4 Ke6 f5+ Ke5 a5 Kf4 f6 Kg3 f7 b5 a6 h5 a7 d5 Nf3 e5 Rh2 b4 Bh3 e4 Bd7 h4 Rf2 d3 Ke3 d2 Qh1 d1N+ Kd4 a2 Ke5 d4 Ng1 d3 Rf6 d2 Rd6 b3 Na3 b2 Rb1 a1B Rb6 Ne3 Rb4 d1N Bg4 Nc3 Nb5 Nh6 g8B Nef5 Nc7 Qd7 Qf3+ Kh2 Kf4 Nb5 Qa3 Nc6 Nf3+ Kg2 Nh2 Na5 Qc3 Rb8 a8B Na7 Bc6 Rb6 Qc5 Ra6 Re1 b1N Na8 Bc3 Qe7 Na3 Reb1 Bb2 Bd5 N3b5 Bb3 Bfg7 f8R Ba3 Bge6 Rg8 Rf6 Rd8 Rf7 Bf8 Rg7 Re8 Nf1 Kh1 Rg8 Bb7 Bh3 Rb8 Bg4 Bc8 Bh3 Nfd6 Beg4 Ndf5 Nh2+
NKRn1b1r/4N3/3pk3/PRn1pBP1/1b1n1q2/1b1N4/nQR1pn2/1B2r3 b - - 0 1 legal: proof: d4 a5 g4 f5 e4 fxe4 b4 axb4 d5 h5 d6 h4 f3 cxd6 Bf4 d5 Bg3 hxg3 f4 g5 fxg5 d4 Kd2 Kf7 h4 b5 c4 e5 a4 d6 a5 e3+ Kd3 g2 Ke4 d3 Kd5 d2 g6+ Kf6 c5 b3 c6 b2 c7 b4 g7 b3 h5 Nd7 Kc6 Nc5 h6 Ke6 g5 Rb8 h7 Nh6 g8N Nf7 Nh3 g1B Nf2 Qf6 Na3 b1N Nc4 b2 Bd3 e2 Qb3 d1N Ne7 Na3 Ra2 b1N Qb2 Nc2 Nb6 Nbc3 Na8 Qf4 Bg6 Rb4 Nd3 Nf2 Rh3 Ba6 Rg3 Bc4 c8B+ Nd7 Kc7 Nd4 Rh3 Nd8 Rh4 Bb3 Rh1 Bh2 Rb1 Bg1 Be4 Kf7 Bf5 Nc5 Be4 Rc4 Kb8 Ra4 Bcf5 Ra3 Raa1 Na2 Rc1 Ra4 Rab1 Rc4 Rc2 Rc3 Rd2 Rc1 Rc2 Re1 Qa1 Be6 Rb5 Bb3 Qb2 Nh1 Nd5 Be3 Ne7 Bd2 Rc1 Nf2 Rc2 Rg8 h8R Bb4 Rh1 Rh8 Rg1 Ra1 Rgc1 Rb1 Rc3 Ra1 R1c2 Re1 Rc4 Ncb7 Rc7 Nc5 Rc8 Rf1 Rc1 Nce6 Ne1 Nc5 Bb1 Rg1 Nd3 Re1 Bg6+ Ke6 Rc2 Nf5 Bh7 Nd4 Bf5+
3nb1QR/2n3r1/2p4B/1b6/pkr2q2/1NRPb1rP/BB3p1n/K3Rb1N b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 g4 h5 f4 hxg4 b3 cxb3 Bb2 exf4 Ba3 Rh4 Bc1 Rh8 e4 Kd7 h3 Kd6 b6 Kc5 e5 g5 e6 f5 b7 a5 e7 b2 e8R c6 Ra4 f3 Qe2 f2+ Kd1 f4 Kc2 f3 Rd4 g3 Na3 b1B+ Kb2 a4 Qe3 g4 Qe2 g2 Ka1 g3 Ree4 Qd6 Nb5 Rh4 Bb2 Bd7 Bc3 Ra7 Re6 Qf4 Rg6 Bh6 Re4 Na6 b8B Nc7 Qd3 Be8 Ne2 g1N Qd8 g2 Ng3 Bd3 Nd4 Bb5 Bb2 Kb4 Bc4 f1B d3 f2 Nb3 Nf3 Re1 g1R Rc1 Bg5 Rh6 Nh2 Rh8 Nh6 Rc3 Nf7 Qd5 Nd8 Qg8 Rg2 Rg1 Rb7 Nh1 Rg3 Bf7 Be7 Ba7 Bc5 Bd5 Be3 Bd4 Qh6 Bg7 Rc4 Be6 Qf4 Bh6 Na8 Bd5 Rbg7 Bf7 Nc7 Be6 Bg2 Re1 Bf1 Nc1 Re4 Ba2 Rc4 Nb3
Q2r4/B3p1P1/B2qq3/p1R1p1r1/3Pn2k/nN1rNB1b/r1R3b1/4KN1b b - - 0 1 legal: proof: g4 d5 e4 b5 f4 f6 a4 bxa4 c4 dxc4 e5 fxe5 h4 g6 g5 Bh6 f5 gxf5 g6 Bg5 hxg5 f4 d4 h5 b4 c5 b5 a5 g7 Kf7 b6 Kg6 b7 a3 Rh4 c3 Be2 c4 Rg4 a2 Bd2 c2 Qc1 c3 Nh3 h4 Na3 Kh5 g6 f3 Bd1 f2+ Kf1 Nd7 b8N Nb6 Bf3 Qd6 Ng5 h3 Qd1 c1R Nd7 h2 Ne4 h1B Rg2+ Kh4 Ng3 c2 Nc4 Rh5 Bb4 Rg5 Bc5 Nf6 g8B Ne4 Ne3 Nc4 g7 Na3 Ba7 Rb1 Bf7 c1Q Nc5 Rb3 Bc4 Rd3 Nb3 Bh3 Ba6 Qc8 Rc1 a1R Rc5 Qce6 Ke2 f1B+ Ke1 Rd8 Rgc2 Bfg2 Ngf1 Ra2 Qd2 Qg4 Qb4 Qf5 Qb7 Qfe6 Qa8
3R3N/B1p1rnrr/2p3P1/q4qN1/1qnp4/R1bP4/Q1N1Rr2/1bk2BK1 b - - 0 1 legal: proof: e4 g5 c4 f6 h4 gxh4 e5 fxe5 a4 Nc6 c5 Nb8 c6 dxc6 Qg4 b5 Qd4 exd4 axb5 Bh6 Ra2 Bg7 Ra1 Bf8 g4 Kd7 b4 Ke6 f4 Kd5 Kf2 Ke4 g5 h5 g6 a5 f5 e5 b6 h3 b5 a4 f6 h2 f7 a3 b7 h4 b6 h3 Bc4 a2 Bb5 Qd6 Bc4 Nd7 b8Q Nh6 b7 Qb4 Be2 Rh7 Qa7 Nb6 b8R Rg7 Nf3 Bf5 Qa5 Nc4 Rd1 h1R Re8 h2 Rf1 Rd8 Bd1 Kd3 Na3 e4 Re1 e3+ Kg2 e2 Ng5 Rd7 Rd8 Rf1 Nc2 h1R Ba3 Re7 Qa7 Qb5 Bc5 Rh4 Qa8 Rf2+ Kg1 Be4 Ba7 Qf5 Rb1 a1Q Rb3+ Qc3 Ra3 Rhh2 Qb7 Rh4 Qb1 Rh5 Qa2 Qb3 Rf1 e1Q Bf3 Rh4 Bg2 Ke2 Bh3 Kd1 Bg2 Qb4 d3 Kc1 Bh3 Bf3 Bg2 Bd1 Bh3 Qee5 Re1 Qea5 Re2 Rh5 Ne1 Bc2 Bf1 Bb1 Nc2 Rd7 Ra8 Be7 f8N Nf7 Nfe6 Rhh7 Nd8 Bd6 Rb8 Re7 Ra8 Bf4 Rc8 Bd2 Ra8 Nfd6 Ndf7 Bc3 Nh8 Nf7 Rd8
2q3BK/1Qp3P1/1N2B3/pn1b2Rb/R1n2q1b/2kN1r1P/2pr2N1/R2q1q2 b - - 0 1 legal: proof: g4 d5 c4 dxc4 f4 b5 a4 g5 b3 gxf4 g5 e5 g6 h6 Ba3 Qd7 Be7 Qd8 Bg5 e4 axb5 hxg5 Qc1 Nh6 Qc3 Ng8 Qf3 exf3 Kf2 Kd7 e4 Kd6 d4 f5 d5 Ke5 b6 Kd4 g7 a5 h3 g4 b4 c3 d6 c2 b7 Be7 e5 Nd7 b8R Ngf6 e6 Rh5 b5 Rh6 b6 Bb7 Bc4 Bd5 b7 Ne8 Nd2 Kc3 Ra4 Nb6 d7 Qc8 d8N Rf6 Nf7 Nd6 Ne5 Nb5 Nd3 Bd8 Ba2 Nc4 e7 Rf7 e8B g3+ Ke1 g2 Kf2 Ra6 Bd7 Rd6 Be6 Rdd7 Nb3 Bf6 Nbc5 Rd6 Nd7 Bd8 Ke1 f2+ Ke2 Bh4 Nf3 g1Q Nfe1 Qg3 Rg1 Qg5 Rg3 f1B+ Kf2 f3 Ng2 f4 Nb6 Be2 Bb3 Qg8 Re8 Bd1 b8Q Qf6 Re7 Qc8 Qb7 Rf8 Bg8 Qff5 Re1 Rff6 Kg1 f2+ Kh2 f1Q Rg5 Bh5 Rea1 f3 Ba2 Qd1 Bb3 Be1 Be6 f2 Kg3 Qe5+ Kh4 Rf3 Ba2 Be8 Kg4 f1Q Bb3 Bh4 Ba2 Bec6 Kh5 Be8+ Kh6 Bh5 Kh7 Qf4 Bg8 Re6 Bb3 Re2 Kh8 Rd2 Qc6 Be4 Qd7 Nca3 Be6 Bd5 Qc6+ Nc4 Qb7
N1Q4R/P1bnkRn1/b1b3P1/nrbq4/p1r2Np1/B3B1N1/K1p2qB1/8 b - - 0 1 illegal: No proof kernel
q1q5/b1qRB1pP/1Bbp4/2bQn3/2rNp3/3R2N1/4P2k/1BbKnN1b b - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 f5 a4 fxg4 Bg5 a5 Bc1 axb4 Nd2 h5 Bh3 b5 Ba3 b3 Bc1 b4 Bf1 Ra5 Nb1 Rb5 Qd3 h4 Qg3 hxg3 axb5 Qc7 Bf4 Qb6 Bc1 Qd8 h4 Kf7 c4 Kg6 f4 Kf5 c5 e5 h5 d3 b6 b2 b7 g2 h6 g3 c6 Kg4 h7 d2+ Kd1 b3 c7 Nc6 b8B Nf6 f5 Nb4 Ra6 Nc2 Ra3 Bb7 Ra6 Ba3 c8N d6 Rh6 Nd7 f6 Ne1 Nf3 g1B f7 g2 f8Q Kg3 Nc3 b1Q Rh4 Qa1 Qf5 Qf8 Qd3 b2 Ra7 b1Q Nd5 Qb6 Bc7 Bd4 Ne3 g1B Ne7 Qf5 Ra5 Rc8 Ra7 Bd5 Bd8 Rc4 Bh3 Bab2 Rb7 Qa8 Qe4 Qf8 Bf5 Qc5 Bc7 Qfc8 Nf1+ Kg2 Rh6 Qc6 Ba5 Ba7 Bb6 Bc5 Nd4+ Kg1 Qf3 Bba3 Qh5 Bh1 Bb1 e4 Qd5 Ne5 Rd7 Q6c7 Rh3 Kg2 Rc3 Kg1 Nef5 Kg2 N1e3+ Kh2 Ng3 Ng2 Kc2 d1B+ Kd2 Ba4 Rd3 Bb5 Kd1 Bc6 Bd2 Bc1 Nef1+ Kh3 Be3 Ne1 Bg5 Kg2 Be7 Kh3 Nd2 Kh2 Ndf1+
R4bB1/q2r1p1b/2r5/B2n1R2/b2kr1Q1/qPpP1N1r/1r4p1/1NK2B1N b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 b5 a4 bxa4 f5 e6 Nf3 exf5 Ng1 Na6 Ra2 Nc5 Ra3 Ne6 Ra2 fxg4 Ra1 g3 Qb3 g4 Qd1 Ng5 hxg5 Qd5 Ra2 Qd4 Ra1 Qd8 e4 Kd7 e5 Kc6 b3 Kd5 d3 h5 Kd2 c5 g6 a5 g7 c3+ Kc2 h4 e6 a3 e7 g2 e8N h3 Bf4 h2 Bh6 a2 Nh3 g1Q Qf3+ Kd4 Nd2 g3 Nf6 c4 Rc1 a1R Nd7 a4 Bf4 a3 Qg2 a2 Bc7 Nf6 g8B Rb1 Ne4 a1R Ne5 Rb2+ Kd1 c2+ Kd2 Qe7 Nef2 R1a4 Qc6 R8a7 Qd7+ Nd5 Rb1 Qa3 Ng5 Rh3 Qf5 Bd7 Nge4 Bc6 Ba5 Rd7 Qg6 Rb4 Qg4 Ba4 Nd1 Qf2+ Kc1 Qg1 Ra1 Qf2 Rg1 h1B Nd2+ Be4 Nb1 g2 Qe6 Bh7 Nf3+ Kc5 Rh1 Qd4 Nf2 Qe3+ Nfd2 Kd4 Qg6 Qe7 Rg1 Qc5 Nh1 Qa7 Qe6 Rb8 Qe2 Re8 Qg4+ Re4 Nf3+ Ke3 Bd8 Qc7 Ng5 Qa2 Be2 Kd4 Kd2 Bb5 Rf1 Qa6 Ra5 Qcd6 Rf6 Ba4 Rf5 Qa3 Bf1 Qb6 Ra8 Qa7 Ba5 Ne3 Qd1 c1R+ Ke1 Rcc2 Qg4 Nd5+ Kd1 Rf2 Re5 c3 Kc1 Rf6 Rf5 Rc6 Nf3+
RKB1b2b/3p3r/2bP3B/8/1p2n1kN/R2pb1Qb/qnB2Pn1/1b3R1N b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 fxe4 d5 axb4 Bh6 b5 Bc1 Ra6 Na3 Rd6 Nb1 c6 Bg5 cxd5 Bc1 d4 Qd3 Nh6 Qd1 Rd5 cxd5 Ng8 Ke2 Kf7 a4 Kg6 g4 e5 g5 Kh5 g6 h3 a5 e3 Kf3 d3 Ke4+ e2 a6 b3 a7 h2 a8B b2 g7 b4 d6 Nc6 Kd5 e4 Be3 Kg4 Ba7 h5 Bb6 e3 Nc3 b1B Ra2 h4 Bc7 h3 Qc2 e1B Ra1 e2 Bb7 Nf6+ Kc5 Na5 Kb6 Nc4+ Ka7 Nb2 g8R+ Bg7 Ra5 Ne4 Bb6 Rh7 Qb3 Bd2 Ra3 e1N Be3 Ng2 Kb8 Qa5 Bh6 Be3 Nce2 Qa4 Rd8 Bh8 Ng3 Qa5 Ba6 Bb7 Nf3 Bd5 Bc8 Bf7 Be2 Be8 Rf1 h1B Bd1 h2 Bc2 Qd5 Qc3 Qa2 Qd2 Nf4 Qe2 Bg2 Nh1 Bh3 Qe1 Ng2 Nh4 Bf4 Qc3 Be3 Qg7+ Ng5 Ng3 h1B Qg6 Nf4 Qg7 Bc6 Nh1 Ng2 Qe5 Ne4 Qg3+ Kh5 Ba6 Rg7 Kc7 Rh7 Ra8 Nd1 Bc8 Nb2 Qe5+ Kg4 Kb8 Bc1 Qh2 Be3 Qg3+
2n3r1/1nRb3b/K7/1R2q3/b1p1pP1P/1BN3bk/p2BRnb1/3BQnN1 b - - 0 1 illegal: No proof kernel
1rBn2n1/2kr2B1/2pr2pn/2Rb1n2/PNRNQ3/nKP1R3/2p1q3/B2r4 b - - 0 1 legal: proof: f4 h5 b4 e5 b5 exf4 b6 axb6 Na3 b5 Nb1 b4 g4 b3 Ba3 Bb4 Bc1 Bc3 dxc3 bxc2 Bg2 hxg4 Bh3 Nh6 Bf1 Ng8 Kd2 b5 a4 d5 e4 Kd7 h4 f5 e5 g6 h5 b4 h6 b3 h7 g3 Kd3 b2 Nd2 b1N Rh6 g2 Nc4 f3 Nd6 f2 Qe1 d4 Kc4 f4 Ra3 d3 Qd2 f3 Nh3 g1R Qe1 d2 Bd3 f1N Rh5 d1R Kb3 f2 Qe4 Ra6 Rh4 Nc6 Bb2 Nh2 Nb5 f1N Ba1 Qe7 Nd4 Ng3 Nf4 Bb7 Nd5 Nd8 Nb4 Rd6 Ba6 Ng4 e6+ Kc8 Rh5 N4h6 Rc5 Ngf5 Ra2 Rg4 Rb2 Na3 Rc4 Qe8 e7 Rg3 Rc5 Rgd3 Rb1 Qb5 e8R R3d2 Ree5 Qe2 Rc4 Kb8 Rec5 Bd5 Bc8 c6 Rc1 Kc7 Rb1 Rh1 Rf1 Rd7 Rf3 Rhd1 Re3 Be6 Nf3 R2d6 Nd4 Bd5 Qg2 Nf6 Qe4 Re8 h8B Nfg8 Be5 Ne6 Ba6 Rb8 Bc8 Nd8 Bg7
3Qr1nn/bKb1pB1r/1N1RPN2/6b1/b5bR/1p2b1pB/PkB4r/1N6 b - - 0 1 illegal: No proof kernel
Brb4K/2Rq1R2/q3Bk1p/nR2N3/1rrN3p/pP2n2q/3qNPQ1/1r6 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 fxe6 h5 e5 Rh2 e4 Rh3 Ba6 Rh1 Bc8 g4 Qc7 h6 Bg7 hxg7 Nh6 g8B Ba6 Bf4 Bc8 Bg3 Qb6 Bh4 gxh4 g5 Qd8 g6 Ng4 g7 Nf6 Ke2 a5 c4 e5 b3 Ke7 c5 d5 c6 d3+ Ke3 h6 c7 a3 Nh3 d2 Qc1 d1Q Qc3 a4 Rh2 a2 Ng1 Qd7 Ba6 Q1g4 Qd3 d4+ Kd2 Qh3 Nf3 Ng4 Qf1 d3 Kc3 d2 Be6 d1R Bb7 e3 Rg2 e4 Nd4 Kf6 g8R a3 Rg7 Ra4 Ba8 e2+ Rg3 e1R Qg2 Ne3 R3g5 Rb4 Rb5 Nc6 Rh7 Bb7 c8N Na5 Ne7 Rb8 Ng6 Bc8 Ne5 Rf1 Nd2 Rh1 Nf1 Rb1 Ng3 Rhf1 Nge2 Rfc1+ Kd2 Rcc4 Re7 Rh1 Rc1 a1Q Rc3 Qf1 Rc1 Nf5 Rc3 e3+ Kd3 Rg1 Ke4 Rh1 Ng3 e2 Rf7+ Kg5 Rc2 Ne3 Rc1 e1Q Ne2+ Ng4 Rc2 Qd2 Rc3 Kh5 Kf5 Ne3+ Kf6 Rg1 Kg7 Rh1 Qc6 Kg5 Kh8 Rg1 Rg7+ Kf6 Qg2 Rh1 Ng1 Qfd3 Nge2 Rb1 Rh7 Qe4 Rc2 Qeb7 Rg7 Qa6 Rh7 Ra4 Rg7 Rcb4 Rc7 Rc4 Re7 Rab4 Rf7+
Q3rN2/1rk3B1/1B2r2N/p1PpN1r1/b4brn/R2Rp3/bK5P/1n2R2b b - - 0 1 legal: proof: d4 b5 g4 g5 f4 gxf4 a4 bxa4 g5 d5 Bh3 h5 Bg4 hxg4 e4 c5 e5 Qd6 exd6 cxd4 Kd2 Kd7 c4 a5 Kc2 e5 b4 f5 c5 a3 b5 f3 b6 e4 g6 f4 b7 a2 g7 f2 Bb2 f1R Nd2 g3 Rb1 a1R Qc1 d3+ Kc3 g2 Kb3 e3 Kc3 f3 Nb3 f2 Qd2 Ra6 Qd1 d2 Nh3 g1R Ng5 Ra4 Bc1 Nc6 b8B Nf6 g8N Bh6 Qe1 d1B Nf7 Ne7 Qe2 Ng6 Ra1 Rg5 Nd4 Nh4 Ra3 Ne4+ Kb2 Nd2 Ne6 Rag4 Ba7 Bb3 Nf8+ Kc6 d7 Nb1 d8R Kc7 Qd3 Bd7 Ne5 Bda4 Rb8 Re6 Qa6 Ba2 Rbb3 Rd1 Re1 f1B Bd2 Bg2 Rd3 Bh1 Bc3 Rc1 Qb5 Rd1 Qe8 Rc1 Bd4 Rc3 Qa8 Rb3+ Ka1 Rb8 Bc3 Rbe8 Kb2 Rh7 Bd4 Rf5 Bc3 Bf4 Nh6 Rfg5 Nc4 Rd7 Bg7 Rdd6 Ne5 Rb6+ Kc1 Rb3 Kc2 Rb7+ Kc1 B2b3 Kb2 Ba2+ Bb6+
R1K1n2N/k5B1/Bq1p1qqQ/1n2R1P1/3rPp2/1pB3b1/2N1p1r1/r1b1R3 b - - 0 1 legal: proof: h4 a5 b4 axb4 e4 d5 Ke2 e5 d4 g5 f3 gxh4 Bb2 b6 Kd2 Ke7 Bc1 Bb7 Ke2 dxe4 d5 e3 Qd2 e4 Qd4 Bc6 d6+ Ke8 d7+ Ke7 Ke1 e2 Kd2 e3+ Kd3 Be4+ fxe4 Na6 Qd5 Nb8 Qd6+ cxd6 Kc4 e1B Kd5 h5 a4 f5 g4 h3 c4 h2 a5 h4 a6 h3 c5 e2 a7 b5 c6 b3 c7 b2 c8R b4 Rc3 Na6 Kc6 Bg3 Kb7 Nc7 Rb3 Nb5 Nf3 Bh6 Na3 b1Q Ng5 Nf6 Bd2 Rg8 Nf7 Ne8 Bc3 Bc1 Nh8 f4 Nc2 Qb2 Bg7 Qf6 Ra5 Rc8 a8Q Rc4 Bg2 Rd4 Re1 Qb6+ Kc8 h1Q d8B+ Ke6 Qb8 h2 Bh3 Qg1 Be7 h1R Qa8 Qg6 Bef6 Qe3 Qb8 Qc3+ Qc7 Rf1 Qc5 Qa1 Qg5 Rg1 Qh6 Rg2 Rc3 b3 Rc7 Rf8 Rb7 Rf7 Rb8 Ra7 Ra4 Qb2 Rc4 Ra1 Rc5 Qa3 Be5 Qaa7 Rd5 Qf7 g5+ Ke7 Bd7 Qff6 Bc6 Rd3 Bc3 Rd4 Bb7 Ke6 Ra8 Ke7 Kb8 Kd7 Re5 Qa6 Bc8+ Kc6 Bb7+ Kb6 Kc8 Qa5 Rb8 Ka7 Ba6 Qb6 Ra8+
1B3B1k/1n1p3p/4pq2/1N1N1rnP/b5b1/1rRRB3/KpQP1R1b/3n3q b - - 0 1 legal: proof: f4 b5 a4 c5 e4 c4 b4 g6 e5 a5 axb5 axb4 Qf3 f6 Qb3 cxb3 f5 fxe5 f6 e4 Bc4 Bh6 Be6 Bf8 Bf5 gxf5 Kd1 Kf7 c4 f4 g4 e6 h4 e3 g5 b2 Kc2 f3 Kb3 e2 h5 e1Q c5 f2 b6 f1N b7 Nh6 c6 Kg8 c7 Ra5 g6 Bd6 g7 Na6 b8B Ne3 Rh4 Nd1 Ne2 Qh1 Nbc3 b1B Bb2 Nf7 Nf4 Rf5 Nfd5 Bc2+ Ka2 Nc5 Rh2 Ng5 Rf2 Nb7 Nb5 Ba4 Bd4 Bh2 Rc1 Qe7 Rc3 b3+ Kb1 b2 Ka2 Nd8 Bc5 Ba6 Be3 Nb7 c8Q+ Qd8 Rd3 Qf8 Qc2 Qd8 Nd6 B6b5 Rc3 Be2 Nb5 Bg4 Rd3 Kf7 g8R Qf8 Bbf4 Qg7 Ra8 Rb8 Bd6 Kg8 f7+ Kh8 f8B Qh6 Ra6 Qf6 Rc6 Rd8 Bb8 Rc8 Rd6 Rc3 Rc6 Rb3 Rcc3
3N4/R2Br1pK/2bBrNQn/P3kp2/2b2R1P/1p1n2pb/3B2nb/3N1q2 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 Nd2 hxg4 Nb1 d5 cxd5 c5 Qd3 cxd4 Qd2 Ra6 Qd1 Ra8 Kf2 Kd7 h4 Kd6 a4 b5 e4 b3 a5 b2 Bd2 b4 Nc3 b1B Ra4 b3 Nh3 d3 Qc2 f3 Kg3 f2 Kf4 Nh6 Ng5 Na6 Ne6 Nc5 Nd1 Ra6 Bh3 f1B Rh2 g3 Re2 Qf6+ Bf5 Bh3 Nd8 Bd7 Re1 Qa1 Kg5 Bc6 Bd7 Ke5 d6 f5 Kg6 Rg8 Kh7 Be7 Qc4 Re8 Qf7 Bg5 Rc4 Be3 Qg6 Re7 Rf1 Rb6 Rf4 Bg1 Rb4 Ra6 Rb7 Bh2 Ra7 Bc2 Nf2 Qf1 Nd1 Kd4 e5+ Kd5 e6 Ke5 Bb4 d2 Ba3 Nd3 Bc5 Rf7 e7 Bb1 e8N Re7 Nf6 Bc2 Nc3 d1N Bb4 Ne3 Nd1 Rb6 Bd2 Ng2 Bc8 Be8 d7 Nde1 Ne6 Bd3 d8B Bc4 Bc7+ Rd6 Bb8 Bc6 Bd7 Nd3 Bc7 Bg1 Nd8 Bh2 Bb6 Rde6 Bc5 Qe2 Ba3 Qf1 Bd6+
2rR4/Q2rN1pn/kPb3K1/2b2BRr/1n3P1q/4p1bb/pp3BR1/B5N1 b - - 0 1 legal: proof: b4 c5 d4 cxd4 g4 f5 e4 h5 exf5 hxg4 a4 b5 Qd3 bxa4 Qb3 axb3 Ke2 a5 Kd3 d5 h4 Kd7 f4 Kc6 c4 Kb7 f6 e5 f7 a4 b5 a3 b6 a2 c5 g3 h5 g2 c6+ Ka6 c7 Nf6 h6 Bc5 f8B Nh7 Be7 Bh3 c8R Nc6 Bh4 Qe7 Rd8 Rc8 Bf2 Qh4 Bb2 e4+ Ke2 e3 Kf3+ d3 Nc3 d4 Ke4 Nb4 Nd5 Bd7 Rc1 Bc6 Ba1 b2 Rc4 d2 Kf5 d1R Bd3 Rd2 Kg6 Rd1 Bf5 d3 Rc2 d2 Ne2 g1B Ne7 Bh2 Ng1 Bg3 Rh2 Rf1 Rg2 d1B Rcd2 Bda4 R2d5 Rd1 Re5 Rd7 Rd5 Nf6 h7 Bd1 Re5 Bg4 Rd5 Bh3 Re5 Rf8 h8Q Nh7 Qg8 Re8 Qf7 Rg8 Be6 Rh8 Rg5 Nf6 Bf5 Rh5 Qe6 Nh7 Qd6 Bg4 Qb8 Bh3 Qa7+
nn1N1N1n/3P3Q/n2qNp2/3p1q2/p1r5/2b1BpRr/kB2R1RP/3b1K2 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 Ra2 hxg4 Ra3 Qf6 Ra1 Qd8 c4 Qf6 d4 Qg5 c5 Qd8 c6 dxc6 d5 Be7 d6 Bf8 Bg2 Na6 Be4 Nb8 Bd5 cxd5 e4 Kd7 b4 c5 b6 Kc6 e5 Kb5 e6 Kc4 b7 g5 e7 a5 e8R g3 b5 g4 b6 f3 Re5 g2 Bb2 a4 Re6 Nf6 Re7 Rh3 Re2 Ne8 Nc3 Bg7 Qc2 Nc7 Qg6 Kb3 Qh6 c4 Na2 c3 Rc1 c2 Re7 Bc3+ Kf2 g3+ Ke3 f6 Qh7 Bf5 Ne2 g1N Nf4 g2 Kf2 Ne2 Rcg1 c1N Nb4 Na2 Ne6 Nf4 Nc6 Bc2 Re8 Qd7 Ncd8 Ng6 Rg8 Nh8 Rg3 Qc6 Re1 Ra6 Rhg1 Na8 Re5 Nb4 Re2 Nd7 b8B Ka2 b7 Bd1 Ba7 Nb8 Be3 Qb6 d7 Qd6 Nf8 Rc6 Nde6 N4a6 Bb6 Rc4 Be3 Nc6 b8N Bd4 Rf1 g1Q+ Ke1 Qh1 Rfg1 Bc3+ Kf1 Ncb4 Nc6 Nb8 Ncd8 N4a6 Bh6 N6c7 Kf2 Nca6 R1g2 Qe1+ Ke3 Qd2+ Kf2 Q2f4 Kf1 Qf5 Be3
2r2N2/3nR2Q/nP2Np2/qp1qb1RK/4Pp2/NB1q1pk1/bnR5/1B2n3 b - - 0 1 illegal: No proof kernel
6Nq/nqpR1b2/3Pp3/p1B2P2/2n2p1p/B3rN2/Rr1r3N/K1Qk2rR b - - 0 1 illegal: No extended proof kernel
Nqq2b2/2q1nbr1/Nq3R1r/5n1P/1Pn2b1k/2K3B1/R3Nq2/n2RQ1nB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 b4 Kf6 c4 Kg5 e4 a5 c5 f5 c6 d5 c7 a3 e5 d3 h3 a4 e6 f3 e7 f4 e8N d4 Qc2 g3 Qc4 a2 Qb3 g2 Ba3 f2 Qf7 f3 Nd6 Nc6 Qc4 Nge7 Be2 f1N+ Kd1 d2 Kc2 d1Q+ Kb2 f2 Nb5 d3 Qc5+ Kh4 Qc1 g5 Bf3 d2 Ne2 g1Q Qc3 g4 Na7 g3 Be4 g2 Qe5 Na5 Bf3 Nc4+ Kc3 Nfe3 Nc6 f1Q Be4 N3f5 Bb2 a3 Nc1 Qff2 Ne2 Rh6 Nb8 Ra7 Na6 Be6 c8R Bf7 Rc6 Qb8 Rf6 Qa4 Bc6 d1Q Nd2 Qa5 Rh2 Qda4 Rd1 a1N Bc1 a2 Ba8 Ncd6 Nc4 Qc6 Bf4 Qcc8 Bc6 Rc7 Nb6 Nc4 Na8 Rb7 Qe3 Qac7 Qd2 Qfb6 Qe1+ Qgf2 Bd5 g1N Bh1 Ra7 Rg2 Nb3 Bh2 a1B+ Kd3 Be5 Kc2 Bf4 Kc3 Kh5 h4 Na1 Bg3 Kg4 h5 Qcc5 Bh2+ Kh4 Rg3 Rd7 Rgd3 Q5c7 R3d2 Rd4 Ra2 Re4 Rfd6 Ree6 Rc6 Reg6 Rf6 Rg7 Bg3+
bQBkrb2/2rN1bq1/1n3PR1/Rbqq4/bB3P2/5q2/3r1B1n/K3N1Rq b - - 0 1 illegal: Other
2qnR1Q1/KB3r2/n7/2R3b1/bR2rrr1/P2q1b1N/1Nq1kP1N/B2n2nn b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Ke6 c4 Ke5 g5 b5 c5 h5 c6 d5 a3 d3+ Ke3 b3 g6 b2 c7 h3 g7 h2 Qa4 d4+ Kd2 Kf4 Qa5 e5 Qb4 h4 Qa5 e3+ Ke1 d2+ Ke2 d1N Kd3 h3 Be2 b4 Kc4 b3 Kb5 d3 Kb6 e4 Bd2 Nh6 g8N Be7 Ra2 Nf7 Ra1 Bd7 Bb4 d2 Nc3 b1Q Qa7 b2 Bc5 Na6 Nh6 Rh7 Ng4 Bg5 Nh6 Qc8 Bf8 Qd3 Nb5 b1Q Bg4 e2 Bc5 e1R Bf8 e3 Bf3 e2 Bd5 Nd8 Be4 Qbc2 Nd6 Rf7 Nc4 Ba4 Bb7 Nc3 Bg7 d1N Ng4 Rb8 Nf3 Rg1 Qa8 e1R Rc1 Re4 Ka7 Ne2 Ba1 Rg2 Re1 h1N Nb2 h2 Ng1 Rg3 Nh3+ Kf3 Rb1 Ng1 Nc4 Rf4 Rb4 Rf7 Nb2 Rg2 Ne3 Rg4 Nf1 Rgf4 Bd5 Rb6 Bb7 Rbf6 Re2 Rg4 Qb8 Rff4 Re1 Qf5 c8R Qe6 Rc5 Qc8 Rf5 Ng3 Rc5 h1B Qd6 Bg2 Qf8 Nh1 Qg8 Ne3 Rb1 Nd1 Nh2+ Ke2 Rc1 Bf3 Re5 Qcd2 Rcc5 Q2c2 Re8
1kn2Nbb/2bq1B2/N1R1r2N/1q6/qrP1Rn2/2b1B3/1qP4r/b1Q1RnK1 b - - 0 1 illegal: Other
nQ1N1r1B/1rkb2P1/2nn3b/rbRn3K/2r1rB2/N2R2NB/qr3P2/7n b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 a4 c5 g4 b5 d4 e5 d5 h5 a5 h3 g5 c3 a6 h4 g6 e3 Kf3 c4 Kg4 c2 a7 e2 d6 e1R Bf4 c1R Bd3 h2 Bg5 c3 Be3 c2 Bf4 b3 Ra2 e4 Ra6 e3 Ra1 h3 Qe2 b4 Qd1 e2 Bb5+ Nc6 Ra2 b2 Bg5 b3 Bf6 Ne7 Bc3 Qa5 Bg7 Nf5 Ra1 Qa2 Nc3 b1N Kg5 b2 Kg4 Na3 Nf3 b1R Ne4 Rb2 Qd4 Rcb1 Nfd2 c1R Ng3 Nc4 Qc5 Rg8 Bh8 Bh6 g7 Nb6 Kh5 Rf8 Nc4 Rcc2 Na3 Rc4 Rf1 h1N Ba4 Kd8 d7 h2 Qd4 Kc7 d8B+ Kb7 Qc5 Nd6 Bg5 Kc7 Bf4 Bd7 Qe3 Rb3 Qe7 R1b2 Rd1 Rb5+ Rd5 Ra5 Rg5 Rab8 Rc5 Rb7 Bc2 Na8 Bf5 Rd1 Bh3 e1N Qe3 Nd3 Re1 Ra1 Rd1 Nb4 Rd3 Nd5 Qe7 Re1 Qf7 Nab6 Qe7 Ree4 a8N+ Kc8 Nc7 Na8 Ne6 Kb8 Nd8 Kc7 Ne2 Ng3+ Kg6 h1B Qf7 Bf3 Qe7 Nh1 Ng3 Bg2 Kh5 Bf1 Rb5 Red4 Qe3 Re4 Qa7 Rcd4 Rc5 Rda4 Rdc3 Bb5 Rd3 Rac4 Qb8+
1NB1rkN1/n3qq2/r1nR1bb1/qP1rB1r1/8/b1Q3r1/KR1R3P/2B1qr2 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 g5 f4 a5 c4 e5 Kc2 d5 b4 d3+ Kb2 e3 b5 g3 c5 e2 f5 e1R f6 g4 c6 d2 c7 e4 Nc3 e3 Nf3 e2 Ng1 d4 Na2 a3+ Kb1 a4 Bg2 d3 Qb3 d1Q Bb7 d2 Nc3 a2+ Kb2 g2 Qc4 g3 Qd4 Qe7 Qa7 Nc6 Nf3 g1R Qa5 g2 Qb4 Bf5 Qa3 Ra6 Qb4 Ref1 Qg4 e1Q Qd4 Bg6 Ne4 Na7 Rb1 a1B+ Ka2 a3 Ne5 Qf3 Qc3 d1R Nd7 Rd5 c8R+ Kf7 Nb8 Bb2 Kb3 a2 Rc6 a1Q Rd6 Qa5 Bc8 Ba3 Rb2 Bg7 Rd2 Kf8 f7 Bf6 Rb2 Qd7 Ka2 Ne7 Rd2 Nec6 Rb2 Qe7 Rd2 Kg7 f8B+ Kf7 Bg7 Re8 Bh8 Kf8 Rb2 Qf5 Rd2 Qfe6 Rb2 Q6f7 Rd2 Bg5 Be5 Bf6 Rb2 Rf3 Rd2 Rgf1 Rb2 g1R Rd2 Bh8 Nf6 Rg5 Ng8 Bf6 Rg1 Rfg3 Rgg2 Bd3 Rb2 Bg6 Rgd2
Knn2nB1/Rr1Nqq2/P2bq3/8/1Pbr3N/n3BQN1/rk3Rr1/n3n1R1 b - - 0 1 illegal: No proof kernel
qB3nbN/nN3P2/rr3b2/Pqq2N2/3R3r/1q3QqB/kRq1n3/2B1n2K b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 Kf7 Kf2 Ke6 Kg2 Kd5 a4 e5 h4 b5 h5 g5 a5 g3 f5 g4 f6 e3 c3 d3 h6 Kc4 h7 d5 Qc2 b3 Nf3 b4 Rh4 e4 Kh1 e2 Ng5 e1Q Qg2 d4 Bd2 e3 Qe4 e2 Rh6 b2 Qf5 Kb3 c4 g2+ Kh2 g1N c5 g3+ Kh1 g2+ Kh2 Be7 c6 Ra6 c7 Nc6 Nh3 Na7 Bc3 d2 Qd3 d1Q Qf3 d3 Be5 Qc2 Qc6 d2 Bg3 d1Q Nc3 b1Q Na4 Be6 Ng5 Qa8 c8N Qd7 Qb7 Qb5 Bb8 Qbd1 Rc1 Ka2 Qf3 b3 Rh4 b2 Nf7 b1R Ncd6 Qdd3 Re4 Qdb3 Rd4 Bd8 Rcd1 Ne7 Nf5 Ng6 Nc5 Nf8 Nb7 Qf2 Rc1 e1N Rcd1 Ne2 Rc1 Rg8 h8B Rg4 Rcd1 Rb2 Rb1 Be7 Bg7 Bd8 Nh8 Bg8 f7 Bf6 Bh6 g1Q+ Kh3 Re4 Bc1 Qg5 Bg2 Qcc5 Kh2 Qgg3+ Kh1 Rh4+ Bh3 Qcc2 Rd2 Qfc5 Rd4 Q3a4 Bc7 Rb4 Bb8 Qab3 Qf2 Qbc6+ Qg2 Rbb6 Qf3 Q6b5 Rb2+
1n3rb1/rbnQkBR1/1N3R2/2NbP3/bNBB3b/Kbr1q3/3rP1rr/8 b - - 0 1 illegal: Other
B1kN3R/r2N3K/rbn1b2Q/bR4bn/n3R2n/2r2BPq/rrP4B/5q2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 e5 f4 d5 a4 Kd7 f5 b5 g3 h5 f6 d3+ Ke3 d4+ Kf2 e3+ Kf3 b3 Ke4 d2 Kf5 h3 Kg6 b4 a5 e2 f7 e1B a6 e4 a7 b2 Ba6 b3 Ra2 d3 Nc3 b1N Ra1 h2 Na4 b2 Nc3 h4 Ra3 e3 Ra2 e2 Bb5+ Nc6 Na4 h3 Nc3 Bc5 f8R Nf6 Ba6 Rh6+ Kg7 Nh5+ Kg8 Qf6 Ra1 Qf1 Bc4 Bb6 Na4 Nc3 Bf7 b1R Bg6 Rb2 Rf3 Kd8 Nc5 Na4 Ra3 Be6+ Rf7 Kc8 Ra2 Bf2 Ne4 e1B Nf6 Bfe3 Nf3 Bg5 Nd4 Rh7 Qg4 d1N Nd7 d2 Be4 Ne3 Qh4 d1R Bf3 Nf5 Be3 Bea5 Bg1 Rd3 Ra1 Ra2 Rb1 Rc3 Rb5 Rb8 Qf4 Nh4 a8B Rb7 Qd6 Ra7 Qf4 Ra6 Qf6 Rb2 Qh6 Rg7+ Kh8 Ra2 Rf4 Rb2 Nb8 Rga7 Re4 Ra2 Nd7 Rb2 Be3 Ra2 Kh7 Rb2 Rg1 h1R Rg2 Rg1 Rh2 Ra2 Rh1 h2 Bf2 Qh3 Be3 Rb1 Bg1 Bf7 Ne6 Rbb2 Nd8 Be6 Be3 Bf7 Rb1 h1Q Bg1 Bd5 Bh2 Q1f1 Rbe1 Bc4 Re8 Bf7 Rh8 Be6 Re4
1K1Rn1r1/R4Qbk/q6P/RB2Pr2/1qN2nb1/1qBq1NNb/4rb2/2r2b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 d5 e4 f5 h4 Kf7 a4 Kg6 c4 b5 h5+ Kh7 e5 g5 c5 b3 a5 b4 c6 b2 a6 d3 c7 d2 a7 g3+ Kf3 d4 h6 g2 Rh2 d3 Ne2 g1Q Ra2 b3 Ng3 Qb6 Qe1 d1B+ Ne2 g4+ Kg2 f3+ Kg3 f2 Kf4 g3 Ra6 g2 Nd2 b1R Nf3 g1B Rh5 b2 Nc3 d2 Ra4 Nd7 Ne2 Ne7 Nh2 Bg7 Rh3 Ng6+ Kg3 f4+ Kf3 Rg8 Ke4 f3 Kd5 Qa6 Ng3 Nf6+ Kc5 Qdd3 Ra5 Nf4 Qe3 Qb3 Bb5 f1R Qf2 Ne8 Rh4 Bh3 c8N Be2 Nd6 d1Q Bd2 Rc1+ Nc4 b1Q Bc3 Qdd3 Rg4 Rd8 a8R Rd4 Rg6 Re4 Rd6 Bd1 Rad8 Re2 R6d7 Q1b2 Ra7 Qbd2 Qd4 f2 Nf3 Qdb2 Nb6 Q2a3+ Kc6 Qab4 Qd5 Rd2 Nd4 Bdg4 Qf7 Re2 Nf3 Rfd1 Qf6 f1B Qf8 Bf2 Qf7 Nd6 Kc7 Ne8+ Kb8 Rdd2 Bd4 Rdc2 Ba1 Rc6 Nc4 Rf6 Bd4 Rf5 Bc3
1N1r4/B3nn1b/2b1K1RP/P1N1b3/bQ2rN2/r1nrBB1k/6bn/q2R2q1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Ke6 a4 Kf5 f4 e5 c4 b5 h5 d5 c5 g5 h6 g3 c6 g4 c7 g2 Na3 g3 Qe2 b3 Qf3 e3+ Kd3 b2 Bd2 b1B+ Nc2 b4 Ra3 e2 Rb3 e1N+ Ke2 d3+ Ke3 e4 Kd4 e3 Ra3 e2 Nh3 g1N Bg2 b3 Qf2 Kg4 Ke5 b2 f5 d4 f6 Nc6+ Ke4 Nge7 f7 Bd7 c8N Bg7 f8B Qa5 Qf6 Nd8 Qa6 Nef3 Nd6 e1R+ Be3 d2 Nb5 d1R Nd6 d3 Qc6 d2 Rb3 Nf7 Nf4 Nh2 Nb5 Be5 Qc5 Ne2 Bg7 Rhd8 Na7 Be8 Rb6 Bc6+ Nd5 Ba2 Qb4 b1B Bf3+ Kh3 Rg1 g2 Bf6 Bd6 Bfd4 Be5 Rf1 g1Q Bc5 Nc8 Kf5 Nc3 Ke6 Ne7 Nd4 Bh7 Nb3 Bab1 Bcd4 Bbe4 Nc5 Qa6 Bh5 Bg2 Bf3 Qd3 Ra6 Qb1 Rb6 Qa1 Ra6 Bb7 Nc6 Ra7 Nb8 Bc6 Bf2 Re4 Bfe3 Re1 Rb6 d1B a5 Rad7 Ra6 Bda4 Rb6 Rb1 Rd1 Rb3 Ra6 Ra3 Nf4+ Kh4 Ncd3 Rd5 Ba7 R5d7 Nc5 Rd3 Rb6 Bb7 Rd6 Bbc6 Rd5 Bc7+ Kf6 Bd6 Rg5 Be5+ Ke6 Na2 Rg6 Nc3 Nd5 Kh3 Nf4+
b1r3R1/N3rbn1/N3R1bK/3Q1k2/r1PP1B2/3B2bn/r1nB2nN/3q2rr b - - 0 1 illegal: No possible last move
1Rqb1b2/3q4/Rq2k3/NN6/Bn1r1Bnr/K1P1P1p1/NQb2R2/2rbbn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 h4 d5 b4 g5 h5 f5 b5 a5 h6 f3 b6 a3 h7 g3 b7 g4 Rh5 d3 Kc3 a2 Kb2 d4 Rh2 d2 Nh3 d3 Bg2 f2 Kb3 f1R Bd5 f4 Nf2 a4+ Ka3 f3 Qe1 d1Q Rh1 d2 Nh3 g2 Be4 g1Q Qf2 g3 Qe3 f2 Nf4 Nf6 Ng2 Ke6+ Kb2 a3+ Kb3 Na6 b8R Ng4 Nc3 Nb4 Qd4 Ra4 Bc6 Bd7 Ne3 Qc8 Rh2 Be8 Rg2 Bg6 Nc4 Bd3 Rb1 a1B Na2 Bc3 Ra1 Re1 Rh2 f1N Na5 Bg6 Qg7 Qb6 Rf2 Bf6 Be8 Bd8 Qb2 Be4 Nc3 a2 Bc6 Rg8 h8N Rg5 Bb5 Rd5 Nf7 Rd4 Nd6 Bd3 Bc6 Bg6 Ndb5 Be4 Rb1 a1B Na2 Bd3 Qa3 Bc3 Ra1 Nfh2 Qb2 Rh1 Bb7 Nf1 Bc6 Rh4 Nc4 Ra7 Na5 Rc7 Ka3 Qe1 Nc4 d1B Bf4 Qd2 e3 Be4 Be8 Qd3 Na5 Be1+ Nbc3 Qdb5 Bc6 Qd5 Ba4 Qdd7 Nb5 Ra7 c3 Bec2 Nc6 Ra5 Nd6 Rah5 Na5 Rh1 Nb5 R5h4 Bd6 Rg1 Bf4 Kf5 Nb3 Bf3 Nac1 Ke6 Ra2 Bd2 Ra1 Nd3+ Ka2 Be2 Na5 Rgh1 Nc4 Nfh2 Bb3 Nb4+ Ka3 Nh6 Ka4 N6g4 Ra2 Re1 Ra3 Nf1 Na2 Bg6 Bc2 Rc1 Kb3 Bf3 Ra6 Be1 Na5 Bd1 Ka3 Be4 Ba4 Bh7 Na7 Bhc2 Nb5
4bnN1/2qr2N1/1q4rn/Ppb5/QB1RP3/1B1r2bb/1k2BqN1/3nb1RK b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 a4 Ke5 h4 d5 c4 f5 e4 g5 a5 b3 c5 b2 c6 g3 c7 d3 h5 Kd4 h6 d2 h7 f3+ Kh3 f2 Kg2 f4 Qe1 d1R Be2 f1B+ Kf3 g2 Nc3 b1Q Bd3 g4+ Kf2 f3 Qd2 Nh6 Qe2 Qb6 Bg5 Bd7 c8B Ra6 Rc1 Bc5 Qc2 Be8 Qd2 Qdc7 Rh2 Nd7 Nh3 Nf8 Nf4 g1B+ Kg3 f2 Qa2 Bh3 Qa1 f1Q Rd2 Bf2+ Kh2 Be1 Be6 Qf2+ Kh1 g3 Be7 Ra7 Ng2 Rg8 h8N Rg6 Nf7 Bd6 Nd8 Bc5 Nf4 g2+ Kh2 g1B+ Kh1 Bh2 Ng2 Bg3 Be2+ Ke5 Qa2 d4 Nd5 d3 Nf6 Kd4 Rb1 Kc3 Ng8 Qcd6 Qa4 Qdc7 Rdb2 d2 Rb4 Bf7 Ra1 Be8 Rd4 Kb2 Bf7 Qbc6 Bb3 b5 Bd6 Q7b6 Ne6 Rd7 Ng7 Qcc7 Ne7 Rb1 Ng8 d1N Bf4 Rc1 Bd2 Rc3 Rc1 Rd3 Bb4 Be7 Rc6 Bc5 Rf6 Qe3 Rf1 Qf2 Rg1
2q1N2N/1bBnk1rq/5Pn1/bPq3Bp/1Q2r2R/1rR2n2/BbK1b3/6Nb b - - 0 1 illegal: No possible last move
Bb1RNq2/1NPQ2Rq/1r1q3R/rb6/2B5/Bq2nn2/1Pk2p2/K1n2rqb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 g4 Ke6 c4 Ke5 Kc2 Ke4 g5 f5 c5 a5 e3 d5 c6 h5 g6 f3 g7 h3 Bg2 h2 Qe1 f4 Bh3 h4 Qe2 f2 Qg4 f1R Qg2+ f3 Qd2 a3 Be6 a2 Qb4 h3 Bg4 a4 Qb6 d3+ Kc3 d2 Qa7 d1Q Na3 d4+ Kc4 f2 Qc5 d3 Kc3 d2 Qa7 Nf6 g8B Bd7 Be2 Bd6 Nc4 a3 Na5 Qf8 Bgc4 Rh6 Nb7 Ng4 Nf3 Bg3 Rg1 h1Q Nd4 h2 Nf5 Bc7 Qa4 Ra5 Ng7 Re6 Rb1 a1N Ne8 a2 Rg2 Nb3 Bf3+ Kf5 Bfd5 a1Q e4+ Kf4 e5 Ke3 Be4 Qaa3 Ra1 Qad6 Bed5 Rf6 e6 Qg1 e7 h1B Bf3 Qgh2 Ra3 Qh7 Rh2 Rg6 Rh6 Qe1 Kc2 Kd4 Kb1 d1Q Ka2 Ne3 Bd2 Nc1+ Kb1 Qb3 Ka1 Re6 Bb4 Rf6 Be6 Kd3 Bc4+ Kc2 Ra2 Qed1 Bfd5 Qg4 Ba3 Qg1 Bg2 Bc8 Bgd5 Nd7 Qb5 Bb8 c7 Ne5 Qd7 Qg2 Rg6 Qgh2 Rg7 Qg1 Nc5 Ra8 Bb4 Nf3 Ra6 Qb6 Nd6 Qg4 e8R Qg1 Ba3 Q6b4 Rc6 Ba6 Rd8 Bb5 Ne8 Ra5 Rd6 Qd2 Ba8 Qd1 Nb7 Qdd3 Rd5 Rb6 Rh5 Qdd6 Rh6
1b2R3/RQ1B1P1P/K2p4/3rNrr1/2r2Bkn/2N1n2b/Brnb2q1/2rr2R1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 c4 Ke6 f4 Kf5 a4 g5 h4 e5 h5 b5 h6 g3 a5 d3 h7 g2 a6 b3 Kc3 b2 c5 e3 Kb4 e2 a7 e1R Rh4 e4 Nh3 g1R Ra6 d2 Be2 e3 Rah6 g4 Rb6 g3 Ka5 b4 c6 b3 c7 g2 Bc4 e2 Re6 Bd6 Rg4 Rgf1 Rgg6 g1R Rg2 Ne7 Re4 Qg8 Ng5 Ng6 Na3 b1R Re8 b2 Ne4 Na6 Re6 Nh4 Nb5 Nb4 Rh2 Nc2 Rf2 Qg4 Rg6 Rd8 Ba2 Qh3 Re6 Rg5 Nf6 Qg2 Re8 Ra1 Rf3 b1R Nc3 Rb4 Rh3 Rc4 Ng4 Rb8 a8R Rf3 Ra7 Rg1 Nb1 e1B Nc3 Rf2 Qf3 d1N Qc6 Rb2 Rh1 Be5 Bd2 Rc1 Qb7 Rgf1 Be3 Bd2 Rg1 Rf3 Ka6 Bd6 Bf2 Nde3 Bg3 Rfd1 Ne5 Bc5 Ra8 Ba7 Bh2 Bb8 Ra7 Rc5 Bg3 d6 Bh2 Rd5 Bg3 Bd7 c8B Be6 Bd7 Rc8 Bh2 Rc4 Bg3 Kf6 Bh2 Bh3 f5 Rg6 Rh1 Kg5 f6 Rf5 f7 Kh5 Rg1 Rgg5 Nd3 Kg4 Be5 Kf3 Bf4 Kg4 Ne5+
2q2nr1/1bn2n1R/1q2PknR/2q2pNn/3N1r1Q/8/K1nB1P1B/nBb3R1 b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 h4 Ke7 e4 c5 a4 g5 a5 f5 a6 b5 e5 d5 h5 b4 e6 b3 h6 c4 a7 c2 Kd2 b2 h7 g3 Qg4 d3 Kc3 d2 Rh6 d1N+ Kb4 g2 Ka3 d4 Bd2 c1N Qe2 d3 Rg6 g4 Qe3 g3 Nc3 b1Q Ne4 c3 Ne2 g1N Nf6 g2 Nd4 c2 Ba5 d2 Ng4 Nc3 Bd3 d1N Bc7 Nh6 Qe1 Nf7 Ra2 Qb6 Rf6 Nd5 Qd2 Bb7 Qc3 Qc8 Qa5 Rg8 h8B Nd7 Qc3 Nh3 Qc6 g1N Rh6 N1e3 Nf6 Nge2 Qc4 Nhf4 Bb8 Nc7 Ng4 Nh5 Ra1 Nb3 Ne5 c1Q+ Ka2 Nef4 Bb1 Ng6 Nef3 Nc2 Ng5 Qe3 Rh7 Bh6 Be5 Qc3 Bf4 Kf6 Bd2 Ndf8 Qa4 Qcc5 Qb4 Na6 Bh2 Rb8 a8R Nc7 Ngf3 Bf4 Ng5 Be3 Ra3 Ra8 Qc4 Ra4 Rh6 Rb4 Ra7 Bf4 Nb5 Be3 Qh4 Rf4 Nd4 Na3 Be4 Nc2 Rg1 Nba1 Bd3 Ne1 Bb1 Nec2 Be1 Bc1 Bd2 Qe5 Ra5 Qe3 Rd5 Qc3 Rd7 Qcc5 Re7 Nh8 Rg7 Nf7 Rgh7
3b1bqn/6bR/2NP1n2/B2PRbR1/bb1N2Qq/1kn2Br1/1Np2r1b/4K3 b - - 0 1 illegal: Other
2BR2n1/1nr1qb1n/1N1p1B2/2n5/N2n1R2/Kn1q1R1P/1P1b4/1q1QkrBn b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 c5 a5 h3 g5 c6 g3 f3 d3+ Kc3 d2 c7 Kf4 Na3 Ke3 f4 Kf2 f5 e5 f6 g2 f7 g4 Bd3 g3 Bb1 e3 Bd3 e4 Rb1 e2 Bc2 e1N Rh2 e3 Kc4 e2 Kc3 Bb4+ Kc4 Rh7 f8B Nf3 Bg6 e1Q Bh5 Na6 Qc2 Ng5 Be2 d1N Nb5 a3 Kb3 a4+ Kc4 a2 Be7 a1N Na7 a3 Nf3 a2 Qd3 Nb3 Nh4 Na5+ Kb5 a1N Ka4 Nb7 Bg4 Nb3 Bf4 Bd2 Nf5 d6 Be5 Be6 c8R Qe2 Qc2 Qd3 B7f6 Rc7 Nb5 Bf7 Ne3 Qe7 Bd4 Nh7 Nc3 Nac5+ Kb4 Ra3 Rd8 Ra1 Nc4+ Kf1 Be6 g1N Nb6 g2 Bc8 Nf3 Rc1 Rb1 Ka3 g1Q Nca4 Qh1 Bf2 Nfd4 Rg2 Qg1 Rg3 Ke2 Be3 Nf2 Rf1 Nh1 Rf4 Qf1 Rgf3 Qc1 Qc4 Qc2 Bf2 Rf1 Bg1 Qb1 Qc2 Ke1 Qd1+
1nr1qBqN/1R2P3/p7/4rb2/QK4N1/R1Pr2r1/rRBk1b2/nBr2qr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 e4 Kf6 g4 Ke5 b4 h5 g5 f5 g6 d5 g7 a3 c3 h3 b5 h4 b6 h2 b7 d3 Qc2 h3 Qa2 f3 Qb2 Kf4 e5 d4 e6 a2 Qb4 a6 Be2 f2 Nf3 f1R Na3 Nh6 g8B Rg1 Nb1 Ng4 Ba3 Ne3 Qb5 Qe8 Ne5 Rh5 Bb2 Bc5 e7 Nc2 Na3 Rg3 Rad1 a1R Nec4 Ra2 Ne5 Na1 Rhg1 h1R Bf7 h2 Rg2 Rg1 Bb3 h1Q Nc2 Bd7 Rh2 Qd5 Qa4 Qdg8 Ne3 Rhg5 Kc1 d2+ Kb1 Ke4 Nf7 f4 Bc1 f3 Ng4 f2 Nh8 f1Q Bd3+ Kf3 Bh7 d3 Bc2 Bf2 Be4+ Ke2 Bg6 Nc6 b8R Re5 Rb7 Rc8 Bh7 Nb8 Rg2 Ra3 Kb2 Bf5 Bb1 Rb3+ Ka2 Rb2+ Ka3 Ra2+ Kb4 Be4 Bb2 Bf5 Rc1 d1R Rc2+ d2 Bc1 Qe1 Rb2 Qf1 Rb3 Re1 Ra3 d1R Bh6 Rdd3 Bf8 Rc1 Rh2 Ke1 Bg6 Be3 Rb2 Bf2 Bc2 Kd2 Bf7 Rcc5 Bfb3 Rc8 Bb1+ Ke1 B3c2 Ke2 Rbb3 Kd2 Rb2
2b4K/2Nnb3/3r1R2/2rqP3/1n4B1/n1p1QPNR/1nB1rrbr/1NB3kn b - - 0 1 illegal: No proof kernel
R2n1R1n/1B2r1qN/bN2BB2/2q2bb1/K1b2P1P/1rpb1Q1q/2k4R/3bn3 b - - 0 1 illegal: No proof kernel
1BQNk2n/3N1Rq1/1RKnq1Bn/b7/2Nbpq2/P1r2n2/2P1r1n1/1b1Rn3 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 g4 h5 f4 b5 a3 e5 g5 h3 f5 b3 g6 b2 f6 d3 Kc3 b4+ Kb3 d2 g7 e3 Nc3 b1Q+ Bb2 h2 Ne4 h4 Ne2 d4 Kc4 h3 Kb5 b3 Nc5 e4 Ng1 e2 Qe1 d1N Nd7 d3 Qb4 e1B Qa4 d2 Be2 Bc5 Bc1 b2 Bc4 Qe7 Nf8 Be6 Nd7 Ne3 Nf8 d1N Qb4 Bd4 Qc3 Nh6 g8R Qg7 Bb3 Nf2 Nf3 Nc6 Nh4 Rc8 Qb4 Ng2 Qc4 Ne7 Qf1 Rc3 Be3 Qc1 Qd3 b1N Bg5 Nd2 Qc4 Ng6 Kc6 Nf3 Nf5 Nd3 Rf1 h1N Ne3 h2 Bf4 Ng3 Bb8 h1Q Ba4 Qd2 Rd1 Ngf5 Rf2 Nd6 f7+ Ke7 Qc5 Ba2 Nd7 Bb1 f8N Ke8 Nc4 Qf4 Qf5 Qh3 Ne6+ Ke7 Qc5 Qhg4 Nd8 Qe6 Qf5 Bd2 Rf8 Nde1 Rf7+ Ke8 Rf1 Rf8 Rg1 Nh8 Rh1 Ng4 Rh6 Rg8 Rg6 Nh6 Rg5 Qd5+ Kc7 Re3 Rf8+ Ke7 Nf6 Qgf7 Rh5 Nfh4 Qh3 Re2 Qc8 Rg3 Be8 Qg7 Bg6 Qe6 Kc6 Ba5 Rb5 Rc3 Nd7 Nhf3 Rf7+ Ke8 Rb6
q4B2/nqB1R1R1/2k2rpQ/q2br1q1/1q1qP3/1BrN2nK/2P5/3bbRN1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 b5 Kg2 d5 h4 Kd7 a4 f5 e4 d3 a5 f3+ Kg3 g6 h5 d2 h6 f2 h7 f4+ Kh2 g3+ Kh3 b3 a6 g2 a7 d4 Nc3 d3 Nf3 g1Q Ne1 b4 Nb1 b2 Ra5 b3 Ra2 f3 Ra3 Ne7 Ra2 Nf5 Ra4 Nc6 Nc3 b1Q Ra2 b2 Ra1 Bb4 Nb5 Re8 h8B Bb7 Nd6 Rc8 a8R Qa5 Nf7 Na7 Bd4 Bd5 Ng5 Re5 Be2 Rc5 Re8 Kc6 Rh2 Bc3 Bf1 Rc4 Qe2 d1Q Bb6 d2 Rh1 Qg4+ Kh2 Ng3 Qd3 Ne2 Qd4 Qc8 Nh3 Qa8 Bd8 Bb4 Ng1 Rc5 Kh3 Ng3 Bc4 f1Q+ Kg4 Qfe2 Rg8 Qe3 Rh7 f2+ Kh3 f1R Bc7 Rf6 Rf7 Qf4 Rgg7 Qe3 Qc3 Qd4 Qe3 Qg4+ Kg2 Bc3 Qh6 Qg5 Kh3 Bb4 Rd7 Bc3 Ra3 Bb4 Rf3 d1B Nd3 Be1 Ba2 Rc3 Rf1 Qa1 Bc4 Q1a4 Rdf7 b1Q Ba3 Qab3 Bf8 Qbb7 Re7 Q1b4 Bb3
Kb1rNnB1/1R1rr1qb/1p2r2Q/B3P2P/r7/2q1Nn2/1k3Rrq/5nNR b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 f5 c4 g5 h4 d5 e4 d3 a4 Kd4 c5 f3 e5 b3 a5 g3 a6 b6 h5 d2 c6 f4 a7 b2 c7 g4 Qe2 d1R Ra3 g2 Re3 g3 Qe1 f2 Nc3 b1Q+ Bb2 f3 Rh3 Bd6 Bc4 f1R Qe2 f2 Qd2+ Qd3 Rh2 Nc6 Rh3 Qf8 Rh2 Rh6 Qc1 Qg7 Re1 Bf5 Ka6 Nf6 Kb7 Nh7 Rh1 Nf8 Re3 Bh7 Nh3 g1Q Re2 g2 Ba1 Qh2 Qb2 g1R Qb5 Rg2 Rb2 Re8 a8N Re7 Qa5 Rfe1 Bb3 f1N Rf2 Re4 Bb2 Qf3 Qa1 Kd3 Qa2 d4 Bg8 Rhe6 Nd5 Rd2 Ng1 Kc2 Qa5 d3 Bc3 Ra4 Qc5 Kb3 Ba5 Kb2 Qe3 Nd4 Qh6 Qe3 Kb8 Nf3 Ka7 Qd4 Ne3 Qc3 Kb7 Nd7 c8R Bb8 Nc7 Nf8 Nc2 Rd1 Ka8 d2 Ne8 Rb1 Rc4 d1R Rc6 Rd8 Rc7 Rbd1 Rb7 R1d7 Ne3+
4bbQN/6BP/2bb4/2rb1Bq1/r1Rq3r/R1NRn2n/KbpNn2P/5k2 b - - 0 1 illegal: Other
5r2/2n1p2B/1qN2RRb/1BB1q3/P1qbn1r1/Kbk4Q/P5rR/1r2rN1r b - - 0 1 illegal: Other
1nNbR3/q2P1pNb/4qB2/1P1N1r1r/nq1n4/1n3k1B/2n1Qr1B/1R1K1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 b4 Kd7 e4 Kd6 d4 a5 h4 c5 h5 g5 e5+ Kd5 h6 Ke4 d5 c3 d6 g3 b5 a3 h7 a4 e6 g4 e7 c4 e8N c2 Bd2 c1R Rh5 a2 Ke2 g2 Rh2 a3 Ng7 f3+ Ke1 f2+ Ke2 g3 Bc3 Qe8 Bb2 c3 Nf3 g1Q Nh4 g2 Nhf5 c2 Rh6 Qe6 Nh4 Ne7 Kd2 Nd5 Rg6 Nc3 Qh5 Be7 Qd1 Na4 Be2 f1N+ Ke1 Bd8 Bc4 Qa7 Rh6 g1Q Bf6 Qgd4 Be2 Qb4+ Nc3+ Kf4 Rb1 a1N Nhf5 a2 Nh4 Nb3 Nhf5 a1N Ne7 Nd4 d7 Bb7 Rh3 Be4 Re3 Bf5 Bc4 Bg6 Re2 Kf3 Nc8 Bd3 Be5 Be4 Bh2 Bd3 Rb3 Rb1 Rb2 c1N Qd2 Bf5 Nd5 Nac2+ Kd1 Ra1 Re5 Ncb3+ Rb1 Ra2 Qe1 Rg8 h8B Bh7 Bd3 Re8 Bf5 Rg8 Nh5 Rg5 Bh3 Rf5 Bf6 Na3 Rc1 Rf2 Rb1 Nac2 Re4 Qab6 Ng7 Ra6 Ra1 Qa7 Rb1 Rc6 Qd2 Rc5 Re1 Qc6 Re8 Qe6 Nde7 Rce5 Nd5 Rh5 Qe1 Ref5 Qe2+
BqBb1n2/2Pb1bk1/4RPb1/1r2Q3/4RBqr/1N2p2r/Rb6/1KNq1b1n b - - 0 1 illegal: No possible last move
Nb1NB1K1/bP4Q1/k5b1/2qpbn2/nN3P2/1bB3r1/R1RB1n2/1br2rq1 b - - 0 1 illegal: No proof kernel
4q2n/1B1Pn1Q1/N2P3K/2n2prR/1Bk1b2q/1B1qR3/N1Nrq2b/3nnq2 b - - 0 1 illegal: Other
rBKRr1NB/1rn1R3/1b2B3/b2bq1PP/1p3r2/q3q3/Nk1b1n2/1R1Q1b2 b - - 0 1 illegal: No proof kernel
nrqN1k1K/N1n2r1n/1b3QRq/3B1p2/1nb2R2/bn6/1B2qqPP/1B3N2 b - - 0 1 illegal: No proof kernel
8/1b3rnR/r1bB1qk1/1RPq2nB/RKB1b1N1/2p1PNnr/1Q1r1b2/6r1 b - - 0 1 illegal: No possible last move
1b2Nq2/2n1n1k1/1r1r2bb/1pRB1nP1/4Pr1b/4n2B/Q2NK3/B1q2RRb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 c5 d4 f5 g4 Kf7 e4 h5 a5 b5 a6 h3 d5 h2 d6 c3 d7 h4 a7 c2 Nd2 h3 Ba3 c1B Ngf3 b3 Rb1 b2 Qb3+ c4 Qc2 c3 Kf2 Kg7 Qd3 c2 Be7 Na6 Nb3 Rh6 Ng5 f3 Qd2 f4 Bd6 Nc7 Ba3 Bd6 Bc5 Qf8 d8R Rb8 a8B Rb6 Be2 Bf5 Kf1 f2 Qb4 Ne7 Be3 Bg6 Rg1 h1N Rc8 h2 Qe1 Ng3+ Kg2 f1R Nh7 Ngf5 Nf6 Be5 Ra1 b1Q Qd2 Bd6 Bd5 f3+ Kh1 f2 Kg2 Bb2 Kf3 c1B Bd4 Bba3 Bd1 h1B+ Ke2 Bg3 Be5 Bh4 Qa2 Bd6 Bb2 Be3 Nd2 Qc1 B1b3 Bdf4 Be6 Rd6 Bbd5 Ba7 Bc3 Bb8 Be5 Rh8 Bc3 Bh6 g5 Rb6 Bb2 Rd1 Rb1 f1N Ba1 N1e3 Bd7 Rf1 B7e6 Rf4 Rf1 Nd6 Bh3 Ndf5 Rg1 Qf7 Rf1 Rd8 Rg1 Qf8 Rf1 Na8 Rc5 Rdd6 Rg1 Nc7 Rf1 Qc3 Rg1 Qa3 Rbf1 Qc1 Ne8+
n1N2qRB/4qq1n/2r1nBPq/rp1r1R2/3k2qN/1r5P/1NQ5/1bb2B1K b - - 0 1 illegal: No proof kernel
rBq4b/Nb2qn1Q/2bN1P1k/6R1/1qq2nB1/1n3Pr1/2bq2pB/5NKR b - - 0 1 illegal: Other
R5nK/5N2/2B1P2b/1rbr4/pN1Rb1PB/3bk3/nRr2BQq/1qb2q1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 f5 g4 h5 e4 a5 d3 c3 b3 h3 Nd2 h4 Rb1 h2 Qf3 h3 Bb2 c2 Re1 c1B Nc4 a3 Be2 a4 Na5 a2 Rf1 a1R Bc3 Na6 Nc6 Bb7 Ne7 Nb4 Re1 Ra2 Qg2 f3 Rd1 f4 Nc6 f2 Be1 f1B Bf3 Rc2 Bf2+ Qd4+ Ke6 Rb8 Kf7 Na2 e5 Rh5 e6 Rd5 Nb4 c6 Be4 f3 Kg6 Be7 Kh7 Bh6 Rd2 Qe3 Kh8 Kd4 Rd1 c5 Rb1 c4 Rb2 Rd6 Bd5 c3 Bc6 Ke5 d4+ Kf4 d5 Qe1 Bh4 f2 Nf3 Rdd8 d6 Qb1 d7 Ke3 Ne5 Bd3 Rd1 f1Q Nf7 h1Q Bg3 h2 Bf2+ Kf4 Rd2 Bc5 Rd1 Qhg1 Rd2 h1R Rd1 Rdc8 d8B Qh2 Bdh4 Rd8 Rd2 Rd5 Rd1 Bh7 Rd4+ Be4 Na6 Ba8 b4 Rb7 b5 Rb6 Bfg3+ Ke3 Nb4 Bb7 Be1 Ba6 Beg3 Rb8 b6 Bad3 b7 Rd2 Bd6 c2 Bdg3 c1B Be1 Rc2 Beg3 Ra8 b8R Ra5 Ra8 Rb5 Bf2+
1rk1rN2/2b1R1qq/2PrNnB1/6PR/qp1r1R1q/3N3r/5n1b/Q1KbB3 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 f4 Kd7 a4 h5 g4 e5 c4 b5 a5 b3 a6 d3 f5 b2 f6 d4 a7 b4 g5 e3+ Ke1 d2+ Ke2 d3+ Kf3 e4+ Kf4 e2 Ke3 e1B f7 h3 c5 h4 Ra5 h2 Be2 h3 Ra3 Qf6 Rb3 Qg7 Bh5 Bg3 Qf1 d1R Qf2 d2 Qe2 Rh6 Qf1 Bfd6 f8R Na6 Rf2 Nf6 Qd3 Rb8 Qc4 Bc7 Na3 b1Q a8N Kd8 c6 Nc5 Rc3 Bg4 Ne2 Nd3 Nd4 Kc8 Rf4 Nf2 Nac2 Be2 Re1 h1Q Ne6 h2 Qd4 Qb3 Rd3 Qa4 Bg6 Rh3 Nf8 Bf3 Re2 Qe1 Qe5 h1Q Qa1 Bh2 Bb2 Nd7 Bc3 Nf6 Nd4 Bg4+ Nf3 Bh5 Rd7 Bg4 Re7 Bh5 Kd4 e3 Ne5 Bg4 Nd3 Qe4+ Kc5 Q1h1 Re1 e2 Rf1 Qf5+ Kc4 e1R Kd4 Bh5 Rh4 Bg4 Rh5 Re6 Kc4 Rde1 Kd4 d1R Bd2 R1e3 Be1 Rd2 Kc4 Bd1 Kd4 Rd6+ Kc4 Ba5 Nc7 Re5 Nce6 Bc7 Bf7 Qfh7 Bg6 N2g4 Rf5 Nf2 Rf4 Ree3 Ne5 R2d5 Nd3 Rd4+ Kc5 Qf3 Rf7 Bg3 Nd8 Re8 Re7 Qg4 Nde6 R4d5+ Kc4 Qh4 Qa2 Bf3 Qb1 Bh2 Qa1 Qa7 Kb3 Bd1+ Kb2 Qa4 Kb1 Rd4 Kc1
5R1n/2b2RK1/b1pPk3/3q1rNN/rqNrb3/4P1B1/1r2Br2/nbBQ2q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 f5 d4 g5 a4 b5 d5 g3+ Kf3 g4+ Kg2 b3 e3 b2 h5 c6 h6 b4 h7 c3 a5 c2 a6 b3 a7 Nh6 Rh4 f3+ Kh1 f4 Rh5 f2 Kg2 f3+ Kh1 g2+ Kh2 g3+ Kh3 Bd6 Bb5 f1R Qd4 f2 Qe5 Bc7 Qe4 Na6 Nf3 g1R Ra5 g2 Qh4 Nc5 Bd3 Nf7 Kg4 Ba6 Na3 b1B Kf5 b2 Kg6 Nb3 Nc4 Na1 Kg7 Rh1 Qf6 g1Q+ Ng5 Rh4 Be2 Rd4 Qf3 Rf8 Rh6 Nh8 Rf6 Rb8 Rf4 Rf5 a8N Rfd1 Ra3 f1R Nab6+ Ke7 Qh1 Rf2 Nd7 Ra8 Nf6 R1d2 Rb3 Qb8 Rd3 Qb4 Nh5 Kd7 d6 Qg2 Ra3 Qd5 Qd1 Ra7 Nh3 Ke6 Ra2 Bb5 Ra3 Ra4 Rb3 Ba6 Rf3 Qbc5 Rb8 Qb4 Rc8 R2d3 Rf8 Rb3 Bd2 c1Q Ng5+ Kd7 Be1 Be4 Rf4 b1B Rf3 Nf7 h8B Rb2 Bd2 Qcc3 Bc1 Qe1 Kg8 Qh1 Be5 Nh8+ Kg7 Qf1 Bg3 Qg1 Nh7 Ke6 Rf4 Re5 R4f7 Ref5 Ng5+
2q2R2/1kBBr2b/1PqbqN1n/KP3r1N/7p/5QnR/6qr/1qb1rBN1 b - - 0 1 illegal: Other
2r3rr/B1bq1N1k/KP1bpqq1/6PB/1rR1R1NQ/6nb/4B2n/b3Nb2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Kg6 f4 h5 c4 d5 b4 a5 b5 d3+ Kd2 a3 Kc3 d2 b6 a2 g5 d4+ Kb3 a4+ Kb4 d3 Kb5 a3 f5+ Kh7 f6 h3 c5 h2 f7 e3 c6 e2 c7 e1B Qe2 d1R Qg4 h4 Ne2 d2 Nec3 h3 Bc4 Nc6 Ne4 Qe8 Qe6 Ne5+ Qc6 Nf6 Be2 Rg8 Ng3 Ne4 Nf5 Ng3 Nc3 Ng4 Nd6 e6 Nd5 Ba6+ Ka5 Be7 Ne3 Rc8 Qa4 Bd8 Bb2 Rb1 Be5 Rb4 Nc2 d1Q Rc1 a1B Bf3 Bec3 Re1 h1B Re4 h2 Ne1 a2 Rc2 Bcb2 Rcc4 Ba3 Bf4 Bg2 f8N+ Kg7 Ng6 h1R Nf7 Rhh8 Be2 Kh7 Nge5 Nh2 Bh5 Bh3 Ng4 Qed7 Bd6 Qf3 Be5 Qf6 Bd6 Qg6 Be5 Rb8 c8B Bc7 Bb7 Bb5 Ba6 Rbc8 Bf4 Bd8 Bb8 Bc7 Rc1 Bbf1 Be2 Bf6 Rcc4 a1Q Ka6 Qe5 Bf3 Qf4 Bd1 Ba1 Be2 Qff6 Ba7 Rb2 Qd1 Bad6 Qd4 Rb4 Qf2 Nf5 Qh4 Ng3 Bf3 Bb8 Bd1 Bbc7 Be2
1rrr1br1/2qb3P/4Qrb1/R2B2q1/1P3nb1/4R1RB/4p2n/KNN1Bkn1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 f4 Ke6 h4 Kd5 b4 e5 c3 g5 Kc2 a5 Kb2 g3 f5 d3 c4+ Kd4 h5 d5 c5 a3+ Ka2 d2 c6 Ke3 f6 Kf2 f7 g2 c7 d4 h6 e3 h7 e2 Qb3 e1R Rh6 d1B Bc4 a4 Rh3 g4 Bf1 g3 Qc4 d3 Nf3 g1Q Bg5 e4 Bh4 e3 Nd4 d2 Qc5 Bd7 c8B Nh6 Bc4 Bc2 Nc6 d1B Qa7 Ng4 Be7 g2 B8a6 Rg8 Qb7 Rf1 Bg5 Nh2 Qa7 Qc7 Bb3 Bg6 Bh6 B1g4 Bac4 Na6 Bd5 Rb8 Bg7 Nc5 Qa6 e2 Rg3 Ne6 Nd4 Nf4 Re3 Rd1 Bc2 Kf1 Nb3 Rc1 Bce4 Rc6 Nc1 Rf6 Bf5 Rc8 Rc3 Qe3 Bh8 g1N Qe6 Qg3 Re3 Qh4 Nc3 Qg5 Kb1 a2+ Kb2 Be7 f8R Rb8 Rd8 Bf8 Nb1 a3+ Kb3 Rf7 Bc3 Rf6 Kc2 Rb7 Ra8 Rb8 Ra5 Rd8 Kb3 Rb8 Be1 Rd8 Nc3 Rb8 Rb1 a1R Kc2 a2 Rb3 B6h5 Kb2 Bg6 Nb1 Rd8 Rg3 Rc8 Rbe3 Rb8 Nc3 Rd8 Rg2 Rb8 Nd3 Rd1 Nb1 a1R Nc1 Ra3 Ra7 Rc3 Ka1 Qb6 Ra5 Rcc8 Raa3 Qc7 Ra5 Bf3 Bh3 Bg4 Be4 Ba4 Bf3 Rdd8 Bd5 Bd7 Rgg3+
3q1B1b/3b1Pn1/1rN1b3/1bB2r1R/B1n1k2P/3RqQp1/1N1n2b1/2KN2qq b - - 0 1 illegal: No proof kernel
1r2q3/1R2P3/2pr2rP/3q1R2/rN1q1qBB/2knN2N/RQ3br1/1nbb3K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 e4 Kd4 a4 f5 a5 g5 d3 b5 e5 g3 a6 c6 a7 g4 e6 b3 h5 b2 h6 b4 Rh3 f3+ Kh1 b3 Ra2 f4 Na3 b1Q Qd2 g2+ Kh2 f2 Qb2+ c3 Rg3 f3 Nc4 Bc5 e7 Qe8 Nd2 Nd7 Qa1 b2 Ra6 c2 Ra3 Qa2 Rb3 Ngf6 Rc3 b1Q Nc4 Qb6 Ba3 c1B Bb4 Nd5 Qb2 Ne5 Rb3+ Nc3 Qe2 Nb1 Nh3 g1R Ne3 Rg2+ Kh1 Bd7 Rb2 Qd5 Be1 Bf5 Rd2 Kc3 d4 Rb8 a8N Bc2 Nc7 Nd3 Na6 Bd1 Nb4 Rg8 Na6 Rg6 Nb4 Rd6 Ra2+ Kb3 Qd2 Qbd8 Be2 f1R+ Ng1 f2 Rf3 g3 Rf5 Ba7 Bg4 Bb6 Qe2 Bc5 Bc3 Re1 Bd2 f1Q Bc3 Qf2 Bd2 Rf1 Be1 Qf4 Bf2 Bb6 Be1 Rf3 Bf2 Kc3 Nh3 Qde5 d5 Qfd4 Nec2 Rf4 Ne3 Re4 Bh5 Qf4 Bg4 Rg6 d6 Ree6 d7 Rd6 Ra6 Ba7 Ra4 Qa5 d8R Qad5 Rd7 Bb6 Rb7 Bc5 Bg1 Bb6 Qf3 Ra2 Bf2 g2+ Kg1 Bc5 Qe2 Ba7 Ra6 Ra4 Bg3 Bc5 Kh2 g1R Ra5 Qfe4 Bh4 Rg2+ Kh1 Qf4 Nbc2 Rc4 Ra2 Ra4 Nb4 Qg7 Nec2 Bf2 Ne3 Qgd4 Qb2+
2n1r3/q2kp2P/b3n1N1/3n4/2nq1b2/1BRBq1r1/PB4bn/qNRKNQ2 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 c4 b5 h4 g5 f4 d5 c5 e3 c6 b3 c7 b2 h5 d3 h6 d2+ Ke2 d4 f5 g3 f6 g4 h7 g2 f7+ Kd7 Nf3 g1Q Qa4 d1N Ng5 d3+ Ke1 e2 Ne4 g3 Qa5 g2 Bd2 b4 Qh5 b3 Qh6 Na6 Bc1 Qe3 Ng5 g1Q Ne6 Nf2 Qg5 Nc5 Qf5 Nfe4 Rh2 Ba6 Bd2 Bh6 Qg5 Nd6 Qg7 Nf6 Bb4 Bf4 Bd2 Nc8 Qg3 Rg8 Rh4 Nd5 Ng7 Ne6 Qf3 Rb8 Nf5 Rg3 Nd4 Ra8 Na3 b1N Bc1 b2 Ndc2 Nd2 Nb1 Nc4 Rh3 Qa7 Qh1 Qge3 Qg2 Qh8 Qf3 Qhd4 f8N+ Ke8 Ng6 Kd7 Nba3 b1N Bb2 Nbd2 Rc1 Rb8 Nb1 Ra8 Bg2 Nf1 Bh1 Nh2 Qf1 N8b6 Bg2 Re8 Be4 Nc8 Ba3 Qa1 Bb2 Qed4 Rh5 Ndb6 Rc5 Nd5 Bf5 Nce3 Rc3 d2+ Kf2 d1B Ke1 Nc4 Bd3 N8d6 Nb4 Ba4 Nc2 Bc6 c8B+ Kd8 Bb7 Kd7 Ba8 Nc8 Bb7 Nde3 Ba8 Bg2 Bb7 Nd5 Bc6+ Kc7 Ba4 Kd6 Bb3 Kd7 Ne3 Ne5 Kd2 e1Q+ Kc2 Qf2+ Kd1 Nc4 Nc2 Qfe3 Ne1
4qbN1/QP1kb3/Br1b2r1/1N1K2pN/4n1rn/2P2b2/Br6/RRB1q1qb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 a5 Kc4 d5+ Kb5 f5 e4 a3 h4 f3 b4 a4 h5 f4 h6 f2 h7 f3 e5 a2 e6 a3 e7 d3 Kc5 g3 b5 d2 b6 d4 Bg2 f1R Qe1 d1R Rh3 d3 Qe2 f2 Qe5 d2 Qe1 Bb7 Qe3 Ra4 Nf3 Nd7+ Kd6 Ngf6 Qc5 Rg8 h8N Rg6 Bh1 g2 Qd5 g1Q Bb2 Ne5+ Kc5 Rg4 Nd4 Nf3 Nf7 Nh4 Nc3 Rb1 Nce2 d1B Bc1 Rb2 Nf4 Bf3 Nh6 Ne4+ Kc4 Ba8 Qc5 Kd7 Nb5 Qe8 Nh5 Bc6 Rb1 a1B b7 a2 Qa7 Rd1 Bg2 Rdd6 Bf1 Rde6 Bd3 f1Q Ng8 Qe1 Rh2 Ref6 Rf2 Bd5+ Kd4 Rb6 Ke5 Bh1 Rf1 Nc5+ Be2 Bde4 Bc4 Bef3+ Be2 Ne4 Kd5 Rb3 Bc4 Bf6 c3 a1B Bd3 Bb2 Bc4 Rb4 Ba2 Ba3 Ra1 Rb2 Rb1 Qb8 Ra1 Bd6 e8B+ Kd8 Rb1 Bf6e7 Ra1 Bb4 Bd2 Qa8 Nc7 Qe2 Rfb1 Bbd6 Bc1 Qee1 Bb5 Qc8 Ba6 Kd7 Nb5 Qb8 Bb3 Qe8 Ba2
bn1rn3/BB2P2K/3k4/1R3B1R/1b3n1q/nnb1P1p1/3Qb1N1/nNRr2b1 b - - 0 1 illegal: Other
2n1BRb1/1p2N1Nb/Nnbk1b1Q/P6r/1Bb3K1/R2n1nP1/3n1B2/nr5q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 e5 f4 Ke7 c4 h5 a4 d5 c5 e3 Kf3 d3 g3 e4+ Kg2 h3+ Kh2 b3 f5 e2 c6 e1N c7 d2 f6+ Kd6 f7 h4 Bd3 e3 Ba6 b2 Ne2 d4 Nf4 e2 Ng2 d3 Ne3 Be7 f8B Rh5 Ng4 Bf5 Nc3 b1N Ne5 Nd7 Ra2 Bh7 Ng6 Nc2 Nd5 e1N Ne3 Nb6 Bb2 Na1 Qf3 d1N Nf4 d2 Neg2 Nf2 Nd5 d1B Bc4 Bb3 Rf1 Nd2 Bd4 Nfd3 Bb5 Bc4 Ngf4 Qc8 Qe3 Nef3+ Kh1 h2 Kg2 Qd7 Ra3 Qc6 Kh3 h1B Kg4 h3 Ne6 h2 Ng7 Bg2 Rf2 h1B Nb4 Qd5 Be8 Ra5 Na2 Rb5 a5 Rb1 Nb4 Bf1 Na6 Be2 Bb2 Bd1 Bd4 Bdb3 Ne6 Bg2 Qh6 Qc6 Rf1 Ba2 Bf2 Bab3 Bg7 Bf6 Bf8+ Ne7 Ng7 Ba2 Bd4 Bcg8 Bf2 Bac4 c8N+ Kd5 Nd6 Nec8 Ndf5 Ke5 Bb4 Qd5 Nc5 Bh1 Ne7 Kd6 Re1 Qc6 Re5 Bg2 Rf5 Qe4+ Rf4 Qe1 Rf5 Qh1 Na6+ Nc5 Qe3 Bh4 Bg1 Ng5 Nc7 Bc6 Bf2 Ngf3 Na6 Bg5 Rf8 Bf6 Bc3 Nd3 Qh6 Rhb5 Bb4+ Rc5 Bc3 Rh5 Bb4+
R2Bb2r/qkqB1r2/2R1Nb2/r1n1n1nq/NQ3R2/2P3nN/2PK2p1/5b1r b - - 0 1 illegal: Other
1b6/3q2N1/KB1q1qq1/3R1bN1/1bNnpQ2/1r2r1b1/1rPRP1Bn/k1B1n3 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bc1 fxg6 Qd2 g5 Qf4 g4 Qg3 hxg3 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 h4 d5 a4 b3 f3 d3 h5 Kd4 h6 e5 h7 d2 f4 d1Q f5 b2 a5 e4 f6 g2 f7 g3 a6 g4 a7 Bf5 Ra3 Qf6 Rh6 Nc6 Bf4 Bb4 f8N Rb8 Rh5 Nh6 Nh3 g1B a8Q g2 Qa4 g3 Kb6 Bf2 Re3 g1B Rh4 g2 Rg4 Bg3 Rf3 B1h2 Nd2 b1Q Nc4 g1N Rb3 Nf3 Qa6 Ne1 Rg7 Ng4 Rb2 Kc3 Ra2 d4 Ra5 d3 Qa8 d2 Qa6 Nd4+ Ka7 b5 Nd6 Kb2 Qc8 Qa1 Ne8 Qg6 Nd7 Kb1 Nb6 Qc3 Na4 Ka1 Ng5 Qcc6 Re7 Qcf6 Ng7 Rb6 Qb7 Rc8 h8B Rc3 Bc7 Re3 Qc6 Rb8 Ka6 Rb7 Bd8 Bb8 Re8 Bhg3 Bb6 Nh2 Rc8 Bf8 Qc5 b4 Bg2 b3 Qd6 b2 Qf4 b1R Rd5 Bb4 Rcd8 Rbb3 R8d7 Qc1 Nb2 d1Q Nc4 Qa3+ Na5 Qa4 R7d6 Qd7 Nc4 Nc6 Rd2 Nd4 Rd5 Qc1 Nh5 Qb2 Bg7 Qfd6 Bh6 Qc3 Ng7 Rb2 Na3 Qcc6 Nc4 Qdf6 N5e6 Qcd6 Ng5 Ne6 Qe5 Nf8 Nf7 Rc7 Na5 Ra3 R2d3 Rcc3 Bc1 Ne6 Ng5 Nd4 Qf4 Rab3 Rd2 Re3 Nc4
B1k5/1q2nrb1/BrQ1RBn1/N5b1/1n2pR1R/Pbq4P/2n1rNK1/3q3r b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 c4 g5 f4 b5 Kf2 e5 h3 d5 c5 Kd7 f5 b3 f6 e3+ Kg2 g3 f7 g4 a3 b2 Ne2 b4 Qe1 b3 Nf4 d3 Qb4 d4 Nd5 d2 Qc4 d1Q Be2 d3 Nbc3 b1R Bd2 b2 Qa2 Na6 Nc7 Ne7 Ne4 Nb4 Ng5 Rh7 Nd5 Qa5 Nf4 Bg7 Bc3 d2 Bc4 e2 f8R e1N+ Kg1 g2 Nd3 Nec2+ Kh2 g1B+ Kg2 g3 Bd5 Be3 Ne4 Bg5 c6+ Kc7 Ndc5 Be6 Nf2 Re8 Rf7 Kc8 Bf3 Bb3 Nb7 Qc5 Bd4 Qc3 c7 Ng6 Rg1 Re7 Kh1 g2+ Kh2 Re8 Rf4 Re6 Re1 g1R Na5 Rh1+ Kg2 Rb6 Ba8 e4 Rh4 Rc1 Bf6 b1Q Re3 Re1 Rf3 Re2 Rf5 Nd5 Qb2 Ncb4 Qc2 Nde7 Rb5 Bf8 Rc5 Rf7 Re5 Bg7 Ra2 Qe1 Re6 d1N Qd2 Qbb2 Qd6 Rb1 Qc6 Ne3+ Kh2 Nec2 Kg2 Qed2 Ra1 Rbe1 Rd1 Qdc1 Rd3 Qd1 Rf3 Rh1 Rff4 Qc4 Rh6 Qbc3 Rhh4 Qa6 Qc4 Kd7 c8B+ Kd8 Qc6 Qa7 Ba6 Qb7 Qa4 Kc8 Qc6+
3N2n1/b1bKN3/1R6/2rb3r/prPRq1n1/BN1nbk2/rQqPq1B1/6B1 b - - 0 1 illegal: No proof kernel
nnqk2nN/r6b/b4r1B/2PB1R2/1q1b1p1P/Nq2N3/b2Q3B/qrR4K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 f5 Kg2 d5 b4 g5 c4 a5 e4 d3 h4 a3 c5 d4 b5 a2 b6 f3+ Kh2 a4 b7 g3+ Kh3 f2 Kg2 d2 e5 a3 e6 d3 e7 f4 Qb3 d1N Rh3 g4 Qc2 d2 Qb2 Bg7 Bd3 f1B+ Kh1 g2+ Kh2 Nc3 Ba6 d1B Ne2 g1R Qb6 Be6 Qa7 Qc8 Bc4 Na4 Re3 Nb6 Ng3 Bd4 Qa5 Ra7 Re5 Na8 Bd5 Ba6 Nf5 Rh6 Ne3 Bc2 Rf5 Rf6 Qd2 Rh1+ Kg2 g3 Bb2 Kd7 e8N Kd8 Nd6 Re1 Re5 Bh7 Nf7+ Kd7 Nh8 Kd8 Rf5 Rd1 Nc3 Rb1 Nb5 Bf7 Bc1 Be6 Kh1 g2+ Kh2 Nd7 b8B g1Q+ Kh3 Qg4+ Kh2 Qf3 Bd6 Nb8 Bf8 Qd1 Bg7 Qb3 Bh6 Rb2 Rb1 a1Q Kg2 a2 Na3 Qb4 Kg1 Rb3 Kh1 Qac3 Bb2 a1Q Rc1 Qcc4 Bc3 Rb1 Bb2 Qcb3 Bc3 Be5 Bd4 Qbb2 Ng4 Rff7 Bb7 Rf6 Bg1+ Bd4 Bh2 Ba2 Ne3 Q2b3 Bd5
3B1k1b/8/2b4b/1P1NRqN1/q3q1p1/Pr1n2nB/1R3b1r/K1RnBQrn b - - 0 1 illegal: No proof kernel
2kR1n2/3N2br/qrN3BP/q1B2p1r/2Qrb2q/1Rb1N2b/6nP/3R1Kn1 b - - 0 1 illegal: Other
1r2RnnB/3Rb3/r1Rp4/k1PN3K/2qn2n1/2q1NBr1/bP1q1r2/1Q4bB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 f5 c4 a5 h4 g5 e4 d3 e5 g3+ Kf3 a3 h5 a4 h6 a2 e6 a3 e7 g2 c5 d2 h7 g4+ Kf2 f3 Kg3 f4+ Kh4 g3 Bb5 f2 Qe2 d1N Bd2 f1R Ba4 f3 Qf2 Ra6 Bg5 Ne3 Qe1 f2 Ne2 g1B Qc3 g2 Bf6 Ng4 Bb3 d6 Qe3 Kd7 Qf4 Kc6 e8B+ Nd7 Nec3 Be7 Qd2 Qa5 Nd1 Kb5 Bh5 Qc3 Qe3 Nf8 Qc1 Be6 Kg5 Ka5 Ne3 Qd2 Nc3 Bd5 Rb1 a1Q Qe1 Bc4 Nd5 a2 Ba4 Qc3 Bc6 Qd2 Rd1 Qc1 Rh2 Qc2 Ra1 Qcc3 Qb1 Bb3 Bg6 Bc4 Kh5 Bb3 Be4 Bc4 Qc2 Bb3 Re1 a1N Qb1 Ba2 Bf3 Nc2 Rh3 Nd4 Rg3 Ne5 Rg7 Ng4 Ba8 Bh2 Bc6 g1R Bb7 Rg3 Bh1 Bd8 Rd7 Bg1 Ba8 Be7 Bc6 N8h6 Re2 Rg8 h8R Nh7 Nf5 Rb8 Rc8 Ng8 Nb4 Nf8 Bcf3 Bd8 Re8 Be7 Bg7 Rc1 Bh8 f1Q Nd5 Qfc4 Rcc7 Rf1 Rc6 Rf2 Nfe3
n1q4B/1q3bK1/BP1kr1p1/1r4q1/4NRR1/1nN1rPQ1/1b2nnqB/1N2b3 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 e5 c4 Ke7 b4 d5 h4 a5 b5 g6 c5 a3 c6 a2 h5 d3+ Ke3 g3 h6 g2 b6 d4+ Kd2 e3+ Ke1 d2+ Ke2 d3+ Kf3 a4 Ke4 e2 c7 e1B h7 a3 f3 Kd6 Bb2 Nh6 Rh4 Ng4 Be2 Be6 Rh6 Bf7 Qc2 d1Q Qc1 d2 Bd3 Nf2+ Ke3 e4 Kf4 e3 Rh3 e2 Bf5 Qc8 Kg5 Ra5 Kf6 Bg7+ Kg5 Rb5 Qc2 Re8 h8B Na6 Rh6 Re3 Bd4 Qc1 Qa4 d1N Rh4 Nc3 Rf4 Be5 Kh6 Qb2 Nh3 g1Q Bd3 Qg5+ Kh7 Qc2 Ng1 Bf6 Bc4 Qe4 Qc2 Qeb7 Qf5 Bg7 Qh3 Qg2 Qg3 Bf6 Nd2 Be5 Rd1 a1N Nb1 a2 Rc1 Bg7 Bf6 Nb3 Be5+ Ke7 Rd1 a1Q Rdd4 Qa3 Rg4 Qc5 Rdf4 Kd7 Bd6 Qg5 Bd3 Na2 Bc4 Bb2 Bd3 Nc3 Kg7 Qcb8 c8N Nc7 Be5 Na8 Nd6 Q8c8 Ne4 Bd2 Rf6 e1R Rff4 Ne2 Bc4 Rc1 Bd3 Rc6 Bc4 Re6 Bd3 Ned4 Ne2 Be1 N2c3 Ne2 Bd6 Rbe5 Ba6 Rb5 Bc7 Nd2 Rf5 Ba1 Qh4 Bb2 Bh2 Nb3 Rff4 Ke7 Qg3 Kd7 Nf6+ Kd6 Nfe4+
1bR2K2/2pN4/Qbn1B2r/k1P4n/BRqr3R/Pbq5/B4n2/qbr2n1N b - - 0 1 legal: proof: f4 a5 g4 e5 b4 axb4 d4 exd4 f5 h6 Bg5 g6 Be7 gxf5 g5 f4 g6 Rh7 Bf6 Rh8 Bg5 hxg5 Kf2 b5 Kf3 d5 e4 Kd7 Kg4 Kc6+ Kf3 Kb6 c4 f5 h4 d3 a3 b3 h5 d4 h6 g4+ Kg2 d2 g7 b4 e5 d3 h7 b2 e6 f3+ Kg3 f4+ Kf2 b3 e7 Ka5 e8B Qf6 Bg2 g3+ Kf1 f2 Bf7 Qc3 Bf3 Nf6 Kg2 f1N g8B Nh5 Ne2 Bc5 Bc6 Bb6 Kf3 g2 Ke4 g1B Kd5 f3 Be6 f2 Ba4 Nc6 Rh4 Ba7 Ra2 Bb8 Ng3 Bb7 Qe2 d1N Nd2 b1R Nh1 b2 Qe4 Rc1 Nf3 b1B Rb2 d2 Ne5 Ra6 Bgf7 Rd8+ Nd7 Rb6 h8R Ba6 Rb4 Bb5 Bb3 Ba4 Ba2 Bb3 Be8 Ra6 Bh3 Rb6 Ke6 Ra6 Kf7 Rb6 Nc5 Rd4 Be6 Nd8+ Kf8 Nfe3 B6d7 f1Q+ Qf4 Be4 Bc8 Rb1 Rh7 Rh6 Ke7 Rd5 Qf8 Qfd3 Bh3 Nf1 Ba4 Bf2 Nd7 Bb6 c5 Rd4 Be6 Qdc4 Qf4 Nf2 Qf3 d1Q Rh8 Bf5 Qb7 Nc6+ Kf7 Qde1 Rd8 Qa1 Rg8 Qec3 Rc8 Rc1 Kf8 Bb1 Qa6+
rb1rk2B/4RnKn/Brq4B/r7/1bP2pb1/NP1r3b/Q1NR1q1R/4r3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g5 Kd3 a5 Ke4 d5+ Ke5 f5 e4 a3 h4 f3 c4 g3 b3 d3 h5 g2 h6 a4 h7 f4 Qc2 g4 Qd2 g3 Rh4 f2 Rh5 a2 Qb4 d2 Rh3 d1R Qa5 a3 Ne2 g1B Bg2 f1B Nec3 d4 Qb6 d3 Bh1 d2 Qc6+ Nd7+ Ke6 g2 e5 Nh6 Ne4 Bb4 Nc5 Re1 Bb2 d1R Qa4 Rd3 Na6 Nf7 Rh2 Ba7 Bd4 g1Q Bb7 Rg8 h8B Qc7 Bc5 Qg3 Bf8 Bb8 Bh6 Qf2 Qa5 Nf8+ Kf6 Bg2 e6 Bh3 e7 Bcg4 Bc8 Rg5 Bb7 Rb5 Kg7 Rb6 Bc8 Nh7 Bb7 Kd7 e8R Qc6 Re2 Kd8 Rd2 Ke8 Qa4 Rd8 Bc8 Re3 Qa5 Red3 Bb7 B4d6 Nb4 Bc5 Nc2 Bb4 Qa4 Ra5 Nc3 Ra8 Nb5 Ra5 Rf1 a1R Ba6 a2 Nba3 Re1 Rg1 Re2 Re1 a1R Nb5 Re7 Qa2 Re5 Nba3 Re7 Re6 Re1 Rd6 Ra7 Rd7 Ra8 Re7+
3Bb3/r2kNrrB/7r/2q4b/1NPPn1Qp/3Rn2N/1r1Rqb2/R1r2b1K b - - 0 1 illegal: No proof kernel
bbnK1QR1/R5Nq/2Bn1rN1/1PP1B1p1/b2n1n2/q2Rn3/3B1k2/b1rn4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 h4 g5 b4 d3 c4 g3 c5 Kg4 e4+ f3 e5 f5 h5 d2 b5 g2 h6 Kg3 h7 a3 e6 a2 e7 f4 Kd6 f2 Qe2 d1N Qb2 a4 Nc3 f3 Rh4 a3 Qe2 Qc7+ Kd5 Ra6 e8R Bb7+ Kc4 d5+ Kd4 Ba8 Rc8 Bd6 Qe4 Nc6+ Kd3 d4 Kc4 d3 Kd5 d2 Ke6 Nge7 Qg6 Nd4+ Kf6 Re8 Nh3 g1N h8B Nge2 Qh5 Nf4 Bd3 f1N Qg6 f2 Rd8 Nfe3 Be4 f1N Qh6 Nc8 Nd5 Nef5 Ne7 Nf1e3 Ng6 Qh7 Qf8 Bb8+ Bc6 Nfd6 Rd7 Re4 Rg7 Kg2 Rg8 Kf1 Rg4 Re8 Rg3 Rd8 Ng1 Kf2 Nf3 Rb6 Nfh4 Re8 Rb1 a1B Nf5 a2 Ng7 Re7 Rb2 Ra7 Rb4 Ra4 Rb3 Rc4 Ra3 Rc3 Ra7 Rc2 Ba3 Rc1 Rh3 Bc3 Bb4 a1Q Rg3 Qa3 Rh3 Ba1 Bc3 Nf1 Rd3 Nfe3 Bb4 Nc3 Ba5 d1B Bb4 Ba4 Ba5 Ncd1 Bd2 Nb7 Kf7 Ra6 Ke8 Nbd6+ Kd8 Ndc4 Be4 Rf6 Bc6 N4d6 Ne8 Rf5 Be5 Rf6 Ng7
kr1Q2NN/r2B1B1R/r4p2/B1N2b1P/1b2n3/rn1R3n/n2qbPKb/1b6 b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 h4 b5 a4 c5 e4 d5 h5 Kd7 e5 Kc6 a5 Kb7 e6 g5 e7 g3 e8N g2 Bd3 g4 Ne2 g1B Kf1 c4 Bf4 g3 Be4 b4 Bc2 d3 Rh2 d2 Bg5 b3 Be7 b2 Nc1 g2+ Ke2 d4 Kf3 d3 Ne2 Nf6 Ng3 Ra6 Qe1 d1R Rh1 d2 Bd6 Ne4 Qf1 f6 Bb4 Nd7 Rh3 Ka8 Qd3 Ndc5 Nf5 Bh2 Nh6 g1N+ Kg2 Bf5 Ng8 Nb3 Nd6 Rh7 Rg3 Rha7 Nf7 Nh3 Nh8 Re1 Ra3 d1B Rg7 Be2 Nd2 Ra1 Rh7 b1B Bd1 c2 Qd5+ Rc6 a6 c1N Ba5 c3 Qd6 c2 Qc7 Ng3 Ne4 Bb4 Nc5 Na2 Qd7 c1R Qd2 Qb8 Qd8 Ne4 Bc2 Rd6 Bd3 Rb6 Bc4 Rc3 Bf7 Qc8 Rh6 Rb8 Rh7 Rab7 a7 Qd7 Qe8 Qd2 Qd8 Nbc1 Rb3 Re3 Rd3 Nb3 Be8 Rb6 Bd7 Ra6 Na4 Kb7 a8B+ Ka7 Bd5 Rf3 Bf7 Ka8 Rd6 Rc3 Rd3 Rc7 Nc5 Rca7 Qf8 Nac1 Bc8 Ra3 Bd7 Na2 Qd8
3B2Rb/bKNB1bP1/p1r1n3/2QnbNb1/2b1k1qr/q1N3n1/4n2P/3R2R1 b - - 0 1 illegal: No proof kernel
B4R2/3bRQK1/r2n3n/pNB1P3/b4PBr/1bbb4/1RN1q1kb/q3b1b1 b - - 0 1 illegal: No possible last move, all moves rejected
q1N2nbB/1R2Rq1B/5NR1/1r2P2K/3NP3/b1r1b3/1bn3np/nr2r1Qk b - - 0 1 illegal: Other
r2n1b2/Rr1qn2N/1BqR1q1P/BNr1pq2/2P5/1r1R2nk/2BQ4/3Kn2b b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 a4 Kf7 f4 Kg6 h4 Kh5 c4 b5 f5 g5 a5 e5 f6 d5 a6 d3 a7 d4 f7 d2+ Ke2 e3 Ra2 b3 Rh3 b4 Ra4 b2 Na3 b1R Nb5 b3 Rf3 g3 Rf4 b2 Rg4 d3+ Kf3 e2 Rb4 e1N+ Ke3 g2 Qc2 d1R Nh3 g1N Ra4 d2 Qe4 Qf6 Qd3 Bb7 Nd4 Ne7 Qc2 Nbc6 Qd3 Nd8 Nb5 Ne2 Ra3 Bh1 Rd4 g4 Ng5 g3 Nh7 g2 Rd6 Kg4 h5 Kh3 h6 Ng3 Qc3 Rb8 a8R Rb7 Bd3 Rg8 Qd4 Rh8 Qf4 g1Q+ Qf2 Qf1 R8a7 Qg2 Bc2 Qc6 Rad3 Ra1 Qf3 b1Q Qf2 Ra5 Bb2 Rc1 Bd4 d1Q Bb6 Qg4 Kd2 Qgd7 Nc3 Rc5 Nb5 Qa2 Qe3 Rb1 Qe2 Rb3 Kd1 Qb2 Qf2 Qd4 Qd2 Qdf4 Ba5 Bg7 f8B Q4f5 Re6 Nd5 Bd6 Ne7 Bdc7 Re8 Bcb6 Bf8 Ra6 Nf7 Red6 Ra8 Ra7 Nd8 R3d5 Qh8 Rd4 Qhf6 Rd3
q4Q1q/2R1nBN1/3r1R2/n4Pnq/Pn1N2p1/1rR5/1n1B2bp/1Kbb1k1B b - - 0 1 illegal: No proof kernel
3n2r1/K1bN4/1RB3b1/npq1Nb1P/1qqbP3/1kp1Rb2/rB3BQ1/3nR3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Kd6 d4 Kd5 a4 g5 e3 c5 h5 b5 a5 f5 a6 c3 a7 c2 Ne2 Kc4 d5 b3 d6 f3 d7 f4 Ra2 b2 Qd2 g3+ Ke1 g2 Kf2 g1Q+ Ke1 g4 Qa5 g3 Kd2 f2 Qb6 f3 Rh4+ Kb3 Kd3 c4+ Kd4 g2 Nbc3 b1B Qe6 Bd6 Ra6 Ne7 Rh1 Nec6+ Kd5 Rg8 Qe4 Na5 Rb6 Bc7 Kc5 Qh4 d8B Bf5 Bb2 c1Q Na4 Nbc6 Nf4 c3 Be7 Nd8 Ng6 Qc2 Bg5 Qd3 Ne5 Bc2 Be2 f1N Qg4 f2 Bf3 Bd1 Bc6 Bf3 Bf4 Bg6 Bg3 Qe2 Qh3 Qe4 Bh4 Qb1 e4 Ne3 Qg3 f1B Rh3 Nd1+ Qf2 Bg4 Re3 B4f5 Qf3 Qed3 Bf2 Be2 Qg4 Bf3 Qg5 Rc8 a8R Rb8 Raa6 Ra8 Ra7 Qgf1 Qg4 g1B Qg2 Qfe2 Rba6 Qd7 Nb6 Qc8 Nbd7 Qed3 Rb6 Qf1 Ba1 Qb2 Kd4 Qa3 Bb2 Qb4+ Kd5 Nab7 Ra1 Ra2 Rc1 Na5 Rc2 Bh2 Rce2 Bf4 Re1 Bh6 R3e2 Bg7 Re3 Bh8 Nf7 Bd4 Nfe5 Qg1 Rb7 Qf1 Rb8 Ne6 Ba8 Qcf8 Bb7 Nc4 Kc6 Qfe7 Ba8 Qec5+ Kb7 Na5+ Ka6 Qe2 Bc6 Qec4 Rb6 Nd8 Ka7
2kB1Q2/1R6/N5qn/1pP2NpB/q1nK1R1r/1N1b2bq/3r2RP/1n2qqr1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 e4 g5 a4 b5 c4 d5 c5 Kd7 e5 d3 a5 b3 a6 d4 a7 d2 Nc3 g3+ Ke2 f3+ Kd3 g2 Nce2 b2 Qe1 d1Q+ Bd2 b1N Nh3 g1R Ra3 f4 Rc3 f2 Rc2 f3 Nhf4 Qf6 Nh5 Nc6 Nhg3 Bd6 Nf5 Nh6 Nc1 Na5 Be2 f1Q Qf2 Qh3 Nb3 Qg6 e6+ Kd8 Qf1 Bg3 e7+ Kc7 e8R f2 Ke4 d3 Kd4 Nc4 Bh5 Qe1 Ba5+ Kd7 Bd8 d2 Re2 d1Q+ Red2 Rb8 a8N Bb7 Rd3 Be4 Nc7 Kc8 Na6 Ra8 Rdd2 Bd3 Re2 Rb8 Re7 Rb6 Rb7 Rc6 Qg2 f1Q Qf2 Re6 Qf4 Re2 Qd6 Reg2 Rf2 Rh7 Rf4 Rd2 Qf8 Ng8 Bf3 Rh4 Bh5 Nh6 Na1 Qa4 Nb3 Rgg2 Rg1 Qfe2 Rf1 Rg1 Rf2 Q2f1 Rg2
5n2/2q3rr/1QRn1P1B/1pNBKbqB/2Pp4/qrqN2k1/qRN5/6bb b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 Kg4 f5 d5 g3 e5 f6 b5 a5 h5 a6 e3 Kd3+ e2 a7 e4+ Kc2 d3+ Kd2 b3 Ke3 h3 Kd4 d2 Ra4 h4 Ke5 b2 Rh2 e3 Qb3 e1R Rh1 d1Q Nf3 h2 Nfd2 e2 Kd4 h3 Ke5 Nh6 Ra1 Bc5 Ra2 Nf5 Ra4 Rh7 Qe3 Nd6 Na3 b1Q Nf3 Qdb3 Ra6 Q1a2 Rc6 Bf5 Nc2 Qc7 Qf2 Qba4 Bh6 Rb1 Nfe1 Q4a3 Nd3 Rb3 Bg2 Bb6 Rb1 h1B Rb2 h2 Bf3+ Kh3 g4 e1Q+ Qe3 Kg3 g5 Qea1 g6 Bc5 Qe2 Bg1 g7 d4 g8B Qe1 Bf7 Qc3 B7h5 Rg7 Qe4 Rh7 Qd5 Rg7 Qc5 Nd7+ Kd5 Rd8 a8N Rh8 Qb6 Nf8 Ke5 Rhh7 Be4 Bg2 Bd5 h1Q Bg6 Qh4 Bh5 Qf7 Nc7 Qg5 Ne6 Qc7 Nec5 Bf3 Na1 Bh1 Nc2
kn4nK/B3r3/N1pP1BrN/3P1BRR/qb2n1n1/3qR3/2pnQ1r1/3b1q2 b - - 0 1 illegal: Other
N3R3/nN2N2k/p2qBq2/brq2p1R/1P1nB3/Q4n1b/K2bnP2/2r2n1R b - - 0 1 legal: proof: d4 b5 Kd2 c5 h4 cxd4 a4 bxa4 h5 e5 h6 e4 Na3 e3+ Kd3 gxh6 Nb1 h5 Bd2 exd2 Qc1 h4 Qe1 Bh6 Qd1 Bf8 Kc4 d5+ Kd3 h5 e4 h3 c4 a6 Kc2 a3 Kb3 h4 g4 d3 e5 d4 g5 h2 e6 a2 g6 h3 c5 Rh5 e7 Nf6 g7 Ne4 g8N Nc6 Qc1 d1Q+ Qc2 d2 Be2 d3 Nf3 Ng5 Nh6 Qc1 Nc3 d1Q Nb5 d2 Nf5 Na7 c6 Bh6 Ng1 Nf3 Rb1 a1B c7 f6 Nh4 Kf7 e8R Kg7 Ng6 Kh7 Nd6 Rb5+ Ka2 Bd7 b3 Rc8 Bd3 Bg4 Bf5 Bc3 Be4 f5 Nb7 Ba5 b4 Qf6 Ne2 Be3 Rg1 h1N Nc5 h2 Ngf4 Ng3 Qb2 h1N Nd5 Bh3 Nec3 Ne2 N3a4 Nhg3 Ne7 Ned4 Nb3 Nge2 Rg5 Ne6 Nb6 Qc6 Na8 Qdc2 Rd1 N6d4 Rdg1 d1N Rh1 Bd2 Nc5 Qcd6 Nb7 Qcc6 Qc1 Ne3 Qc3 Nf1 Qa3 Rb8 c8B Qc1 Bd7 Rc8 Be6 Qcc6 Rgg1 Qb6 Rg4 Rc1 Rg5 Qbc5 Rh5+
k3r1Nb/1nr2r1p/b1B1q3/3Rn1Pp/b4Q1b/1RKRPNn1/3B3B/3bq3 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 dxc4 f5 g6 h5 gxh5 f6 exf6 Rh3 f5 Rh1 f4 g4 Kd7 a4 Kc6 d4 f5 Kd2 b5 e3 Kb7 a5 c5 d5 c3+ Kd3 f3 d6 f4 d7 b3 Be2 b4 Rh3 c4+ Kd4 c2 Ra2 b2 Bd3 c3 Rh1 f2 Bb5 f1Q Bc4 b3 Bd2 c1B Bd5+ Nc6+ Ke4 f3 Na3 b1B+ Nc2 b2 Bf7 f2 Ra1 Be7 Ne2 Qe1 Kd3 f1N Be8 Bh4 g5 Nh6 Rh2 Qb6 d8B Rf8 Ng3 Nf7 Qf3 Nd6 Bc7 Rf7 Ne4 Ng3 a6+ Ka7 Qf1 Nb7 Qf4 Qb3 Nf6 Qe6 Ra5 Ne5+ Kd4 Ba2 Rg2 b1B Rd5 Bb3 Ng8 Bb2 Bc6 Ba4 Rg1 Rb8 Rh1 Ka8 a7 Ba2 Bd6 B2b3 Rg1 Qf2 Ne1 Bd1 Nf3 Qe1 Rh1 Ng4 Rg1 c2+ Kd3 Bf6 Bc7 Ne5+ Kc3 c1R+ Kd4 Nh1 Rg4 Nd7+ Qe5 Bb5 Rd6 Bh8 Bd5 Ba6 Qf6 Bf1 Rb6 Rc5 Bh2 Ng3 Re4 Ne5 Qf4 Bd7 Rb4 Ng6+ Re5 Rc7 Rb1 Bdb5 Bc6 Re8 Rb4 Rf6 Rc5 Ne5 Rc3 Bba4 Rbb3 Bfb5 Rd3 Rff7 Bd7 Nc5 Kc3 Kb7 a8R Rf5 Rb2 Rf7 Ra5 Kb8 Rb1 Nb7+ Bc6 Ba6 Rb3 Ka8 Rad5
k5rN/1Nr1r1P1/2b1N1qB/p1b1R3/1RBP2n1/1R1Q1rqp/3Kbr2/2nn4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 Kd7 b4 Kc6 e4 Kb7 d4 a5 g5 f5 b5 c5 e5 h5 b6 a3 e6 h3 g6 c3 e7 h2 e8N a2 g7 h4 Bc4 f3 Nh3 f4 Ba3 f2+ Ke2 f1R Rg1 h1B Kd3 f3 Rg5 c2 Nf6 c1N+ Ke3 f2 Rg2 Qc7 Be6 c4 Rg4 c3 Ne4 c2 Qd3 Nh6 Qb3 Nd7 Bc5 Qg3+ Kd2 Nf6 Qb5 Nf5 Be7 Rg8 Bc4 Ne3 Nf4 h3 Nbc3 Nd1 Ng5 Ra7 Nf7 Bc6 Ne6 Ka8 Nh8 Ba6 Rb1 a1Q Re4 Ng4 Bg5 Bc5 Bh6 Re7 Rb4 Qb2 Re5 Qb1 Qa4 Bab5 Ne4 Ba6 Qb3 Bab5 Bd5 Be2 Nd6 Na2 Ndf7 c1R Nd6 Qg6 Bc4 Rc3 Qb1 Nc1 Nb7 Rf3 Qb3 Rc7 Qd3 Re1 Nbd8 f1R b7+ Ka7 b8R R1f2 R8b6 Ka8 Nb7 Rff7 Ba6 Ref1 Rb3 Rfe7 Bc4 Rf3 R6b5 R1f2 R5b4
6b1/1NnbrNPB/Bp2nk2/1pB2R1K/r2bn3/qR1b2bN/2Pq4/Q3q3 b - - 0 1 legal: proof: e4 c5 b4 f5 h4 fxe4 d4 cxd4 b5 g5 b6 gxh4 Qd2 axb6 Qd1 b5 Ke2 Kf7 f4 e5 a4 h5 g4 d5 f5 h3 f6 h2 g5 b6 a5 e3 Kf3 e4+ Kg3 e2 Kh4 e1N a6 d3 a7 d4 Ra3 d2 Ne2 e3 Nbc3 d3 Ra1 Bd7 Ra4 Bc5 Nb1 Rh7 Ng1 e2 Nh3 Ng2+ Kg3 e1B+ Nf2 h4+ Kf3 h3 Rb4 Bd4 Rb3 Na6 Nc3 Nf4 Nce4 Qf8 Nc5 Ne6 Kg4 Nac7 Nb7 Qa3 Bg2 Rg7 Rf1 h1Q Kh5 h2 Nh3 Bg3 Rf5 Qe1 Be4 h1B Bb2 Bg2 Qa1 Bf1 Bc3 Bg2 Bb4 d1B+ Rf3 d2 Bc5 Be2 Bh7 Bd3 Rf5 Bd5 g6+ Ke8 Rb4 Ba2 Rb3 Re7 g7 Kf7 Rf1 Rf8 a8B d1Q+ Rf3 Qdd2 Rf2 Ng5 Rf5 Ke6 f7 Nf6+ Kh6 Rg8 f8N+ Kf7 Ng6 Nge6+ Rg5 Ne4 Kh5 Rd8 Ne5+ Kf6 Nf7 Rg8 Nbd6 Rge8 Bb7 Ra8 Bc8 Ra4 Ba6 Re8 Nb7 Re7 Rb2 Bac4 Rb3 Nf8 Nfd8 Bg8 Nf7 Nfe6 Rf5+
4q1RK/1Br2p2/r5qQ/R1b2bp1/PrnBnN2/2r1RNb1/k2P4/q2r3B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 h4 Ke6 a4 Kd5 h5 c5 h6 b5 e3 g5 h7 g3+ Kf3 c3 Rh2 c4 Nh3 b3 Ra3 g2 Rh1 g1B Nf2 b2 Qc2 b4 Nd1 b3 Ra1 Ra6 Bg2 Bd6 Qg6 c2 Nf2 c3 e4+ Kc4 e5 Nf6 e6 Nbd7 e7 Nb6 e8B Bf5 Nh3 Bgc5 Qh6 Ne4 Bc6 Qe8 Rf1 Kb4 Bh1 Nc4 Na3 b1Q Re1 b2 Bb7 Kb3 Re3 Bc7 Ra2 Qa1 Nb5 b1Q Bb2 Rf8 h8R c1R Rg8 Be5 Re1 c2 Bd4 Rd1 Re2 c1R Re3+ Rc3 Rc2 Bed6 Rc1 Qd3 Rc2 Rb1 Rc1 Ka2 Re1 Rb4 Rb1 Bg6 Kg4 f3 Nf4 Bf5+ Kh5 f2 Rbe1 f1R R1e2 Nf2 Re5 Rfc1 R2e3 Rd1 Ng6 Bh3 Na3 Qe7 Nc2 Rc8 Qf8 Bb6 Kh6 Rc7 Kh7 Qe8 Ra5 Bbc5 Ne1 Bg3 Kh8 Bd7 Nf4 Qg6 Qh6 Ne4 Nf3 Bh3 Qh5 Bf5 Qh6
rk2K3/PnqBn2Q/2b2rp1/r3BP1R/b3Bb1R/rN1qqR2/r4p2/5N2 b - - 0 1 illegal: No possible last move, all moves rejected
1B1n1b1b/1r1N2r1/5p1B/K2n1b2/b3R2R/1q1pPPnR/Bbb1Qb2/4k1N1 b - - 0 1 illegal: No possible last move
r1N1q3/p3N1b1/r1Q2P1R/PK1n2r1/2prbN2/4RB2/n1Rr3B/r2br1k1 b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 Kd2 Kf7 Kc3 Kf6 Kb4 Kf5 f4 c5+ Kc4 e5 a4 d5+ Kb5 h5 b4 e3 g4+ Ke4 a5 d4 f5 e2 f6 e1R g5 h3 g6 d2 g7 Ke3 Ka4 Kf2 b5 h4 b6 c4 b7 h2 Ba3 h3 Qg4 d1R Nc3 e4 Bb2 e3 Qg5 e2 Nb5 d3 Nd4 d2 Bc3 Qe8+ Qb5 Rh5 Ra2 Bf5 Rb2 Be4 Bg2 Na6 b8R Nb4 Nc6 Na2 Ne7 Rg5 Nc8 Ne7 g8N Bg7 Rb3 Nd5 Bf3 Ra1 Qc6 d1B Nge7 Kf1 Bg4 Kg2 Kb5 Kf2 Nf3 Kg2 Nd4 Kf2 Rg1 h1R Bf3 Rh2 Ne6 Rhg2 Bb2 h2 Be5 h1R Nf4 Rh4 Rh1 Rhg4 Rh4 Kg1 Rh6 Rb1 Nfg6 Rf1 Bd6 Bd3 Bg3 B1c2 Kc5 Rd4 Qb7 Be4 Re3 Rb6 Qc6 Ra1 Nf4 Ra6 Rb2 e1R Kb5 Bd1 Rc2 Rgd2 Bh2+
3q2r1/nq2b2N/2QrR1n1/2Npb2b/4R1P1/B1R3PN/q1nK3p/kr1B3b b - - 0 1 illegal: Other
R1rq4/1bq1q3/1r1kBB1R/P1p2KnB/4nP2/2nQ1N2/pb1N4/4rbrR b - - 0 1 illegal: No proof kernel
B4n2/rQ1r1Nr1/1BBNp1P1/6n1/1K2kqn1/1b1bP3/q1p2bRq/bR1R4 b - - 0 1 illegal: No possible last move
7B/kn2r2P/PbR1q3/2NQ3B/3n1pq1/KNR3N1/n1b1p1rr/brR3q1 b - - 0 1 illegal: No proof kernel
br3q2/1R1p1N2/1Q1B1knB/nrR1Pbbq/2P1q3/1N1q4/nK4p1/R1rB4 b - - 0 1 illegal: No possible last move
R1Q2r1b/Rp1Nq1nK/1nR5/q2r4/r1Pb1n1p/4kbNP/2B3NB/4qb2 b - - 0 1 illegal: No possible last move
1N2k1K1/P1r1R1p1/p1rn1Bq1/b4B1b/nbNB2Pq/1Q4q1/3Nnn2/3r1R2 b - - 0 1 illegal: No proof kernel
1b1b1B2/pr1b4/r1R1Q1p1/4bP1n/1Pb3K1/N6r/b1n1B1R1/R1Bkn1Nq b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 f4 Kg6 h4 Kf5 c4 d5 b4 e5 c5 a3 c6 a2 h5 e3 h6 Ke4 f5 d3+ Ke1 d2+ Ke2 g3 c7 d4 h7 g6 Na3 g2 Nb5 Nc6 Nf3 g1R Qb3 d1B+ Ke1 e2 Kf2 e1N Qa4 d3 Rh5 d2 Bg2 Kd3 Kg3 Ke2 Na3 e4 Nb5 e3 Nh2 Rb8 Rg5 Qd5 Kf4 Be7 Qa6 Bd8 Nf3 Nf6 Qb6 Bd7 c8R Rb7 Nc7 Nh5+ Kg4 Nd4 Kh3 Bb3 Qa5 d1B Ra8 Bc4 Rb8 Bdb3 Nb5 Ndc2 Qa6 Kd1 Bf1 e2 Rg2 Rh1+ Kg4 Rh3 Qc6 Rf8 h8B Rf6 Qc8 Ra6 Bg7 Qc6 Bf8 Qd5 Rb1 a1B Na3 Be5 Ng1 Ba2 Ra1 Qc6 Rf2 Qh1 Rg2 Nd3 Qc6 e1B Qe6 B1g3 Rc8 Nde1 Rc6 Bb8 Bd3 Bge5 Be2+
1R2nk2/2Q1p2p/K1b2q1n/2P2n1q/1bnnB2R/n2N1PB1/1rBR3n/4r2N b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 d5 a4 b5 c4 d3 g4 e3+ Ke1 h3 g5 d2+ Ke2 h2 Kd3 d4 g6 b3 a5 b4 f3 b2 a6 b3 c5 e2 Kc4 e1N Kb5 d3 g7 Nc2 a7 Nd4+ Kb4 Bd7 Qc2 d1N Ra6 d2 Rg6 Qb6+ Kc4 Ne3+ Kc3 d1N+ Kd3 Nh6 g8R Bc6 Ne2 Nef5 Kc4 Nd7 R8g7 Nf6 Ng3 Nf2 Be3 N2g4 Nd2 b1N Bf2 b2 Nde4 Rb8 a8B Rg8 Rf7 Bg7 Bd3 Bh8 Rd1 h1Q Rd2 Qh5 Nh1 Nh2 Rg4 Bg7 Rh4 Na3+ Kc3 Bh8 Bg3 Nc4 Nef2 Rb7 Be4 b1N+ Kd3 Nba3 Rf8+ Kd7 Qc3 Ne8 Qa5 Rg6 Kc3 Re6 Bc2 Re1 Nd3 Ke6 Rg8 Kf7 Qa7 Rb8 Qa5 Qa6 Qc7 Rb2 Bb7 Nf6 Ra8 Ne8 Rb8 Kf8 Ba8 Bd7 Be4 Qf6 Rb3 Bc6 Kb4 Nce3 Ka5 Nec4+ Ka6 Qfg6 Nc1 Be5 Qa5 Qf6 Rb8 Bf4 Qd8 Bc7 Qd7 Ba5 Nd3 Bb4 Qc7
B5nr/bnPPRR2/r1b1pNrB/3r4/p1q1rQ2/B2q4/4r1RN/2r1k2K b - - 0 1 illegal: No proof kernel
1N3r2/BQ4nB/1P1b3R/pnR1prN1/KP3b2/1B3R2/b1r1q2k/b1rr3b b - - 0 1 illegal: Other
bN5k/N3b3/n1b5/n3KP1n/R2BQrBr/q3R2P/2bpRbpq/5B1b b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 d5 c4 e5 f4 b5 f5 g5 h3 Kg7 a5 g3 a6 g4 a7 d3+ Ke3 d4+ Kd2 g2 c5 e3+ Ke1 e2 Kd2 e1N c6 e4 c7 g3 Qb3 e3+ Kd1 d2 Ke2 Qe7 Na3 Nc2 Kf3 d1B+ Kf4 d3 Qc3+ Nd4 Ne2 g1Q Ra2 b3 Qb4 b2 Qa4 b1B Bd2 b4 Bc1 d2 Qb3 Qh2 Bg2 Ndc6 Rf1 Na6 Qd5 b3 Qe6 b2 Qd7 Nf6 Nd4 e2 Qd8 e1B Rf2 Ba4 Qe8 Na5 Nab5 Bb7 c8R Qa3 Ke5 Be7 Nc6 Nh5 Nb8 B1e4 Rc3 b1B Bb2 Bbc2 Bf1 Bh1 Re2 Bf2 Rce3 Rh6 Qc6 Kh8 Qe4 Bc6 Bd4 g2+ Rg3 Bab3 Ra1 Bbd5 Ra2 Nf4 Rge3 Rh4 Ra1 Qb3 Ra4 Qa3 Nd7 Rg8 a8B Rgg4 Na7 Nh5+ Qf4 Qg1 Qe4 Rf4 Nb8 Qh2 Bb7 Bd7 Bc6 Be8 Bb5 Ba8 Bc4 Bec6 Bb3 Bb1 Bd1 Bd3 Re1 Bb1 Bg4 Bc2 R1e2
K1b3kn/nn1br3/2N1nqpb/bR3N1Q/P1BR3p/b7/Nr1rP1B1/B7 b - - 0 1 illegal: No proof kernel
6bn/k2r2BR/b1pn1PNK/3r1r2/1n1Nq3/bNP1B1rn/1p1R4/Q3nR2 b - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 axb6 Ng1 b5 Qf3 b4 Qe2 Nc6 Qd1 Nb8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 e5+ Kg6 g3 d4 b3 f4 b2 h4 c6 a4 e3 f5 e4 a5+ Ka7 c3 b5 a6 e2 h5 e1N f6 b4 h6 e3 h7 e2 d5 b3 d6 Nf3 d7 e1N Na3 b1B+ Qd3 b2 Ra2 Qe7 d8R Qe4+ Kh5 g5 Ra1 g4 Qe3+ Nd4 Qf3 Ne7 Kg5 Ba2 Nh3 g1R Nf2 g2 Qd1 g3 Qd3 Rf1 Nc2 g1N Qd1 g2 Nh3 Ndf5 Rd2 Nd6 Nf4 Ng6 Nd4 Bg8 Nb3 Nh3+ Kh5 Be7 Kh6 g1R Rb1 Rg3 Rhh2 Kb6 a7 Na6 Rh1 Rb8 a8N+ Ka7 Nc7 Rb7 Nce6 Nb4 Ned4 Rd7 Ra1+ Ba6 Rhh2 Ne5 Ng6 Rf5 Rb1 Bd5 Ra1 Rhd8 h8B Bg8 Bg7 Bf8 Rdf2 Be7 Be3 Bf8 Rd2 Be7 Nf4 Ng6 Rh1 Nh8 Ng6 Rb8 Rf1 Rbb5 Ra5 Rbd5 Qa1 Nc4 Rb5 Bc5 Rb8 Nd6 Rc8 Nbd3 Re8 Ba3 Re7 Nb4 Bf8 Be6 Rh7 Bg8 Bg7
q3n1BR/R1b1n1p1/3PN1n1/1B3p2/bK1P3n/B1Q1nN2/r2rkb2/4n1qN b - - 0 1 illegal: Other
4N1bn/2b2P2/1qRr3r/3B1r1q/1R1rr3/2Qr2R1/2nppP1B/k1B1n1NK b - - 0 1 illegal: Other
2rn4/QnNb1PR1/Rb1p3P/p3B3/1R5r/qr1N2kN/Bn3b2/1bK1b2r b - - 0 1 illegal: No possible last move
1r6/3nP1bR/1pqq4/q1n3n1/bnBNR1Bn/B2R2Qp/P1n2K2/1kr1N3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 e4 Ke7 c4 Kf6 g4 Ke5 g5 d5 c5 f5 g6 h5 c6 f3 c7 f2+ Ke2 f4 g7 f3+ Kd2 b3 Na3 b2 Rh3 b1N+ Kd3 Nd7 Bg2 f1N Be3 f2 Ke2 d3+ Kf3 d4 Qc2 d2 Ke2 d1N Bc1 d3+ Kf3 Kd4 e5 d2 e6 Nb2 e7 d1Q+ Qe2 Kc3 Rg3 h3 Bg5 h2 Be3 h1Q Rg4 h4 Nh3 Nh6 g8B Nf5 Nf4 h3 Ne6 Qd6 Bc5 Na4 Qa6 Kb2 Re4 Nbd2+ Ke2 Nh4 Nf4 Rb8 Bc4 Bg7 Bf3 Ne3 Bb5 f1N Qb6 Nd5 Nc2 Nb4 Nd4 Ne3 Bc4 Nc2 Bg4 Ndf3 Ng2 Ng5 Rd1 Rh5 Rd3 Kb1 Ne1 Rh8 Rf4 Qhc6 Re4 Rf8 Qa5 Rf1 Qa8 Rh1 Kf2 b6 Qa7 Ba6 c8R Bb5 Qa6 Qe8 Qa8 Qh5 Rh8 Rg1 Rh7 Rh1 Ng2 Rc1 Qa5 Qe5 Bd6 Nac5 Qa3 Ba4 Ne1 Qh6 Rd1 Qh5 Qg3 Qed5 Rd3 Qh6 Be5 Qdd6 Bf4 Qa8 Bd2 Qa5 Bc3 Qc6 Bb2 Qhd6 Ba3
b5r1/rB1PK3/3R1N2/bQ2B3/1p1p4/R1q1bP1q/n1Nkb2b/rN3Rbn b - - 0 1 illegal: No possible last move
2r5/Q1qP1n2/1P3Kp1/1R2RbNr/2q1p3/k3rbbb/1bn2N1B/1B2RNb1 b - - 0 1 illegal: No proof kernel
1n1bb2R/2p4P/3Nqr2/k1nP2QR/Bp4r1/1B3rNb/1Kb1nBbn/2R5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 d4 Kc6 Kd2 Kb6 Kc2 f5 e4 g5 h4 b3+ Kb2 f3 d5 g3 e5 f2 e6 f4 h5 f3 h6 g4 e7 c3+ Ka3 g2 h7 c2 Nh3 g1N Be2 f1B Nc3 f2 Qd3 b2 Nb1 g3 Nc3 b1B Nd1 g2 Bh5 Nh6 Qd4+ Ka5 Bb2 c1N Qe5 b5 Qe6 Nb3 Qf6 Qd7 Bd4 b4+ Kb2 Ra6 e8B Nc5 Ng5 Ng4 Ne4 Be7 Ng3 Qe6 Nc3 Bb5 Qg5 f1B Nce4 Ne2 Nd6 g1R Bf2 Bc2 Rc1 Rf8 Bhg6 Rg2 Rh5 Rf3 Bd3 Rc6 Bc4 Bd8 Bb3 Nh2 Bd7 Qf7 Be8 Bh3 Bd7 Qe6 Be8 Ka6 a5 Rg1 Bd7 Bfg2 Be8 Bbd3 Bd7 Bg6 Be8 Rb6 Bc6 Be8 Bca4 Ka7 a6 Rc6 Qe7 Kb6 a7 Ka5 Qg5 Rd1 Ra1 Rd4 Re1 Rg4 a8R+ Nba6 Rc8 Nb8 Rc1 Qe4 Nb5 Rcf6 Nd6 Qe6 Rg1 Be7 Nf7 Bb5 Rh8 Bd8 Nd6 Be8 Rc1
r2R1NN1/BPr3q1/2k3rp/b1B1P1R1/3QbNrn/b3p3/7K/qnrB1r2 b - - 0 1 illegal: No proof kernel
1N1nn2n/p3r3/2q1PRk1/K3p2N/PnQR3R/1Bbbrr1N/1r3n2/2B3b1 b - - 0 1 legal: proof: e4 b5 h4 e5 c4 bxc4 d4 exd4 e5 g5 e6 gxh4 Qe2 f6 Qe5 fxe5 Kd2 h5 b4 c5 g4 d5 f4 d3 Kc3 h3 a4 d2 g5 d1R g6 h2 f5 d4+ Kc2 c3 Kb3 c4+ Ka3 h4 g7 h3 f6 d3 f7+ Ke7 b5 Kf6+ Ka2 d2 b6 c2 b7 c3 Kb3 Qd6 Ba3 c1B Nf3 c2 Kc4 Bb2 Kb5 c1N Ka5 Ne2 Nh4 Nf4 Bb4 Ng6 Kb5 Qc6+ Ka5 Re1 Ra2 d1R Bc5 Rh7 Ng2 Nh8 Bf2 Kg6 Rg1 h1N Bc5 h2 Nd2 Bc3+ Bb4 Nf2 Ne4 h1N Nf6 Rd3 Nh5 Ree3 Rd2 Bc5 f8R Nf6 g8Q+ Rg7 Be2 Ne8 Bd1 Rf3 Rf1 Rde3 Rd4 Nd3 Rff4 Nhf2 Bb3 Bd7 Qf8 Re7 Rh4 Na6 Qf4 Rb8 Rd6 B5d4 Rd5 Ndc5 Rd6 Be1 Bc3 Nb4 Bb2 Bec3 Bc1 Qd5 Qf8 Bb5 Qf4 Qc6 Rd8 Bd3 Rd6 Rc8 b8N Rcc7 Rd8 Rb7 Rd7 Nce4 Rd8 Ng5 Qg4 Bc5 Qc4 Ngf7 Rdd4 Nd8 Ngf4+ Kh6 Rd1 Ng4 Ng6 Nc2+ Qb4 Rf2 Ngf4 Re1 Nh3+ Kg6 Ba2 Rf4 Rd6 Bg1 Bd5 Re3 Rf1 Rf8 Rf4 Nf2 Ba2 Rff7 Rdd4 Rb6 Rfe4 Rff3 Ref4 Be1 Qc3 Rb2 Bb3 Nb4 Qc4 Bc3 Rf6+
r1q4n/n3Q3/r3nBq1/bNRRNk2/1n1B2rR/1p1p1bn1/PK1PB3/7r b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 h5 g4 hxg4 b5 a6 Nh3 axb5 Ng1 bxc4 Bg2 c3 Bh3 Ne7 Bf1 Ng8 h4 Ke7 e4 Ke6 e5 g5 h5 b5 h6 c5 h7 d5 Rh2 f5 Bc4 c2 Rh1 b4 Bd3 c4 Ba3 c1N Nf3 d4 Nh4 c3 Bc2 b3 Rf1 f3 Be4 f4 Ng6 c2 Bc6 g3 Bc5 g4 Be8 g2 Rf2 g1Q+ Rf1 g3 Nh4 g2 Qe2 Nc6 Ba7 Nh6 Qf2 Bb7 Bg6 Ne2 Be8 c1N Kd1 Nd3 Bc5 Ra6 Ba3 Na7 Be7 Nb4 Ng6 d3 Bf6 Qc8 Nc3 Kf5 e6 Nd4 Kc1 Nf7 e7 Ne6 Qe2 f2 Ne5 f3 Kb2 Be4 Rfe1 f1R Rec1 f2 Nb5 Bf3 Rc5 Rg8 Rb1 Nh8 Bh5 Rc1 e8R f1N Ra1 Ng3 Rd8 Bd6 Rd7 Bc7 Rdd5 Ba5 Qe3 Rd1 Rac1 Re8 R1c4 Rc1 Rg4 Rc4 Rh4 Rg4 Qh6 Reg8 Qg7 Rd8 Qe7 Re8 Rc7 Qb6 Rcc5 g1R Qd8 Rh1 Qe7 Nf7 h8B Rf8 Bhg7 Nh8 Bh6 Qbc6 Be3 Q6e8 Bd4 Qg6 Rc2 Qc7 Rc6 Ra8 Rcc5 Qc8 Rc7 Rf4 Bf2 Bg2 Be2 Bf3 Rcc5 Rg4 Bd4
1RN1bbNK/1B1rN3/1rB4n/1b5R/6pk/3P1nqP/4rQpb/1qr2rB1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 e4 Kg5 a5 c5 a6 f5 e5 b5 h3 b3 a7 c3 e6 c4 e7 b2 e8N g3+ Kf3 b4 Ne2 c2 Nc7 b3 Nd5 g2 Ra2 c3 Rg1 Qc7 Na3 b1R Rh1 b2 Nd4 Nh6 Bb5 Rh7 Nc4 Kh4 Rf1 g5 Nf6 g4+ Ke2 f3+ Kd3 f4 Ke4 f2 Qe2 f3 Nc6 Nd7 Rh1 f1R Ng8 f2 Ra5 Ne5 Nb6 Rd7 Nce7 Nf3 Bc6 Qg3 Qe3 Ba6 Nbc8 Bb5 Qc5 Rb8 a8B Rb6 Bab7 Re1+ Qe3 f1B Rg1 Bfc4 d3 Bf7 Qe2 Be8 Be3 c1R Qf2 c2 Rf1 Nf7 Kf5 Re2 Kg6 Nh6+ Kh7 Ra1 Rh1 b1Q Kh8 Rf1 Bd4 c1B Rg1 Bf4 Bc5 Rc1 Re1 Bd6 Ra8 Rec2 Re5 Rf1 Bd4 Raa2 Rb8 Rcc1 Qc2 Rb2 Bg1 Bc7 Qc5 Re2 Qf2 Bd6 Qe3 Qf2 Rf5 Bh2 Qd4 Qg3 Qf2 Ree1 Re5 Re2 Rh5+
4b3/4r1R1/nn1b3k/nN5B/2pBqqb1/bPpN2nB/1rRR1QP1/K6n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 e4 a5 d4 h5 Kd2 c5 Kc2 f5 d5 Kf7 d6 Kg6 d7 f3 e5 c3 e6 a3 e7 f2 Nf3 h3 Be3 f4 e8B+ Kh6 Qd3 a4 Ra2 h2 Bg6 h4 Qd6 h3 Qd1 Ra7 Bgd3 Na6 Ne1 Qh4 d8R Nf6 Rg1 h1N Qf3 h2 Qh3 Re7 Bd4 f3 Qf5 Nd7 Ra1 a2 Qe5 a3 Qc7 Ng3 Qa5 h1N Qb5 Qe4 Nd2 Nb6 Rc1 a1N+ Kb1 Bg4 Nc4 Nb3 Rd7 Na5 Be2 f1B Rc2 f2 Nd6 c4 Bd1 Bfe2 Qf5 f1Q Nb5 Qff4 Ka1 Bh5 Rf1 Beg4 Rff2 Be8 Rfd2 Rhh7 Ra7 Rb7 B3e2 Bd6 Nd3 Rhe7 Qf7 Bc8 Bg4 Bcd7 Bh3 Bg4 Kb1 a2+ Kc1 a1B Kb1 Rbd7 b3 Bb2 Bf3 Bba3 Ka1 Qb7 Qf5 Re2 Qc5 Qbe4 Rb7 Re7 Rc7 Bf5 Bh5 Bg4 Rb7 Re6 Rg7 Re7 Qf5 Nc8 Rd1 Nb6 Ra2 Qfe5 Qf2 Rc2 Rd2 Qg5 Rb2 Qgf4 Rb1 Rb2 Rc1 Qef5 Rcc2 Qh7 Rd1 Qhe4 Rdd2
n1B1N3/Nnqn4/3nQ3/b4p1B/2q1b1P1/1r1RPNqp/nk6/1rRqB2K b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 g4 Kd6 Kg2 Kd5 a4 Kc4 c3 h5 e3+ d3 a5 b5 a6 d5 a7 f5 Ra5 h3+ Kh2 f3 Bb2 h4 Qd2 Kb3 c4 d4 c5 f2 c6 Bb7 c7 Be4 c8N Nf6 Bg2 f1Q Bc3 Ne8 Qe1 d2 Ra1 d1Q Na3 d3 Qd2 Qde1 Nc4 Nc7 Bb2 Nd7 Ba3 Rb8 Ne5 Na8 Nf7 Qc7+ Ncd6 Rh5 Qf2 d2 Ng5 d1Q Qf4 Qfc4 Qf3 Bg7 Qf2 Bc3 N1f3 Rh6 Qf1 Qg3+ Kg1 Rg6 Ne8 Rgb6 Rc1 Be1 Qe2 h2+ Kf1 h3 Rg1 h1N Ne6 Nf2 N6g7 Nd3 Rh1 N3c5 Kg1 Nb7 Nd6 Bd2+ Qf1 Ka2 Rc3 b3 Nc8 b4 Rd3 b2 Ne8 b3 Bb4 b1N Bc3 b2 Bb4 Bc1 Be1 Nc3 Qe2 Rb4 Qc2 Nb5 Qb3+ Kb1 Qa2+ Kc2 Qa6 b1N Qe6 Nab6 a8B Kb2 Na7 N5d6 Qh6 Bd2 Qe6 Qf2+ Kh2 Nc3 Rf1 Qg3+ Kh1 Na2 Rg1 Nd8 Bb7 Na8 Bc8 N8b7 Bf1 Rb5 Be2 Ba5 Rf1 Qdc1 Bd1 Qd2 Bb3 Qd1 Bd2 Qe2 Bc2 Qb3 Qe7 Nd8 Rd5 Ka3 Rc1 Qd1+ Be1 Qbc3 Bd3 Rb1 Bc4 Kb2 Rd3 Rb3 Bf7 N8b7 Bh5 Q3c4 Qe6
N1n2N1R/1K1B1n1N/1bR3PB/b1Q1rr2/p4b1q/k2qn3/n1p4P/2nb3R b - - 0 1 illegal: No proof kernel
1nr3R1/K2b2R1/2Pn3P/br1Bq3/1NN1k1pb/Q2r1b1r/3p2q1/bRB3B1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 a4 Ke6 h4 Kf5 c4 e5 f4 b5 h5 g5 a5 d5 a6 b3 a7 d3 Kc3 g3 c5 d4+ Kb4 e3 Ne2 b2 Ra6 d2 Nbc3 b1R+ Qb3 d1R Rh2 d3 Bh3+ g4 Na4 e4 Bg2 Bd7 Nb6 Qf6 Ka5 b4 c6 Qe5+ Nd5 Nf6 Kb6 Ne8 Ra2 Nd6 Rh4 Bg7 Nec3 e2 Ra5 e1B Qb2 e3 Qa3 b3 Na2 b2 Rb5 e2 Nab4 Rh7 Bh1 g2 Ne3+ Ke4 f5 Bf6 Rh2 Beh4 Nc4 e1B Rh3 Bg7 f6 Rh6 Rf3 g1Q+ Rf2+ Qg2 f7 Bh8 f8B Rh7 Rf7 B8f6 Rg7 Rh6 Nd5 Ba5+ Kc5 Rh8 Be7 Rc8 h6 d2 Bd8 Rf1 Rb3 Rf3 Bb6 Rd3 Rb5 Ra1 Rb4 b1B Rb5 Bc2 Rb4 Bd1 Rb1 Nb7+ Kb5 Bf3 Bg1 Nd6+ Kc5 Qeg3 Nb4 Ra2 Bh2 Ba1 Bg1 Rb2 Na2 Bc3 Nb4 Qe5+ Kb6 Be2 Rg5 Re3 Na5 Qf3 Qa4 Bf5 Nc4 Kd4 Qb3 Qfg3 Bd5 Qg2 Na6 Be6 Bh2 Rh3 Rg6 Bb4 Qa4 Rbb3 Qa5 Rbd3 Qa3 Bbc3 Nb4 Bf3 Na2 Nd7+ Ka6 Ba5 Nb4 Rab8 Rg5 Rb5 a8R Re8 Rd8 Nb8+ Ka7 Bd7 Rg7 Rf8 Bg8 Ke4 Bg1 Rf5 Be6 Rf6 Rh8 Rf8 Rhg8 Rc8 Bd5+
1b1R3K/Qb1N2Rn/1pbqP3/4brk1/1B1Nn2r/6P1/1p2Br1N/qr2R2r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 d4 h5 a4 c3 a5 b3 d5 b6 d6 b2 a6 f3 a7 f2 g3 c2 d7 h3 e3 c4 Be2 f1Q Bf3 h4 Ra2 h2 Kd4 h3 e4 c3 Be2 Rh4 Qd2 Na6 Qe1 Bg7 Bd1 Nc5 Bf3 Bb7 Be3 c1R Be2 c2 Nc3 Rb1 Nf3 c1B Nb5 Qg1 Bf2 Bf4 Qa5 Bb8 Ra3 Qc1 Re1 h1R Nh2 Qe7 Rf3+ Kg5+ Rf6 Qe6 d8N Bh8 Nc6 Qd1+ Kc3 Qed6 e5 Ne4+ Kc4 Bg7 e6 Bh8 Rf4 f5 Bc5 Be5 Nbd4 Ngf6 Bb4 Nh7 Rff1 f4 Rf3 Qf8 Kd5 Qc1 Rc3 f3 Qa3 f2 Rf3 f1R Rf7 Kh6 Rg7 Rf2 Qa4 Qd1 Qa5 Qa4 Qa6 Qa1 Qa5 Bbc7 Qa2 Re8 a8R Bb8 Qa7 Re7 Bf3 Rf7 Be2 Bbd6 Rd8 Bb8 Nb3 R7f5 Nc5 Ba6 Nd4 Bc8 Kc6 Bb7+ Kd7 Qd6+ Ke8 Bc6+ Nd7 Bb7 Nf6 Bc6+ Kf7 Bb7 Nf1 h2 Kg8 Bc6 Kh8 Bb7 Re7 Kg5 Rf7 Rg1 Re7 h1B Nh2 Bg2 Rc7 Rh1 Rf7 Nc5 Rc7 Bgc6 Re7 Ne4 Rf7 Bf4 Nd7 Be5+ Rg7+
n1bqq3/q5QP/5R2/nr1rp3/n3kN1P/N1q1b2B/1n1p2BR/2q1B1NK b - - 0 1 illegal: Other
r2n2Qb/3RNp2/1k2p2R/5nB1/2PbPb2/6B1/nN1qnNBK/1q1nr2b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Kd2 b5 Bb2 Ra3 Ke1 Rf3 Ba3 Rxf6 Bc1 Rf2 c4 d5 a4 Kd7 h4 Kc7 e3 g5 h5 d3 h6 b3 h7 e6 a5 g3 a6 g2 a7 b2 Qf3 g4 Rh6 g3 Rh1 d2+ Kd1 d4 Qd5 b4 Qb5 b3 Qg5 Bg7 Ra3 Kb6 Ra5 Bb7 Rh3 Nc6 Na3 b1Q Qe7 b2 Rh6 Re2 Qg5 Nge7 Rd5 Nf5 Nh3 g1B Nc2 g2 Rd7 Bh2 Ne1 g1B Bg2 Bf4 Nf2 Rg8 Qg4 Bh8 Ned3 Qg5 Qg3 Ra8 Qg4 Nd8 Qg3 Bf3 e4 Qh4 Qg8 Qg5 Bf1 Bh1 Bh3 Qa1 Bg2 b1N Nb2 Re3 Kc2 Re1 Kd3 d1N Be3 Bf6 h8B Nbc3 Bg7 Na2 Kd2 Rf1 Ke2 Qb1 Kf3 Re1 Bf8 Bh8 Bd6 Ndc3 Bc1 Bfh2 Bg3 Qd2 Kg4 d3 Kh3 Qdc2 Bcf4 d2 Bg5 d1N Qg7 Rc8 Qg8 Ne2 a8N+ Ka6 Bf3 Qd2 Nb6 Ra8 Nd5 Ka5 Ne7 Kb6 Be5 Bf4 Bg2 Be3 Bg3 Bf4 Ng4 Bge3 Kh2 Bed4 Nf2
4q2b/1bp2Ppr/PRR4N/b1n1R1B1/rbk2n2/rB4Q1/2r1N2N/1q4bK b - - 0 1 illegal: Other
nBB1r1Rr/4r3/kq1q1nB1/q1bq4/RnR5/1QKN2p1/br2pPP1/2N5 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 h4 fxe4 b5 Qc7 b6 Qh2 h5 axb6 h6 b5 Bc4 b4 Bd3 Qxh6 Bf1 Qh2 Kd2 Kd8 c4 Kc7 a4 Kb6 a5+ Ka6 c5+ b5 c6 g5 c7 h5 Qc2 d5 Qc3 e5 Ra2 d3 Na3 h4 Nf3 h3 Bb2 d4 Qc2 e3+ Kd1 e4 Be2 g4 Qb3 g3 Ke1 d2+ Kd1 Nf6 Kc2 d3+ Kb1 d1Q+ Bc1 d2 Kb2 Bc5 Qg8 b3 Qc4 Nbd7 Rg1 Nb6 Qg8 Be6 Nc4 b4 Qf8 Re8 c8R Na8 Bf1 e2 Rd8 e1N Qg7 e3 Nfe5 Nc2 Bd3 e2 Bg6 Re7 Re1 Rhe8 Nd3 Qh1 Ra1 h2 Ra4 Qg1 Nce5 h1R Qf8 Rh8 Qg8 Qh1 Rb8 Qh5 Rh1 Qe1 Rh4 d1Q Bf4 Qed2 Nc1 Qd6 Rg4 Q1d5 Ned3 Qhg5 Be5 Bf7 Rc4 Qd2 Kb1 b2 Ka2 b1R Bf4 Ra1+ Kb2 b3 Be5 Qg5 Kc3 b2 Rd8 b1Q Rc8 Q6c6 Bb8 Nb4 Rd8 Qcd6 Rc8 Kb5 a6 Ra2 a7 Rb2 Rd8 Nb6 a8B Qgf5 Bb7 Na8 Ra7 Qg5 Bc8 Be6 Rb7+ Ka6 Qf7 Qa1 Qg8 Qa5 Rc7+ Qb7 Rf4 Ba2 Qb3 Qgd5 Rc6+ Kb5 Ra6 Qa7 Rc4 Q5b6 Ra4 Qaa5 Bh3 Ka6 Bhf5 Re3 Bd7 R8e7 Rg8 Re8 Bdf5 R3e7 Bc8+
1bR2b1N/nB2Nr2/bB1q1rR1/1PR5/Kn5P/p2b4/Nr1rp3/Qnq2k2 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 h4 Kf6 f4 Kf5 c4 d5 Kc2 e5 b4 g5 b5 a5 c5 g3 c6 d3+ Kc3 a3 Kb3 g2 c7 d2 Bb2 d4 Ra2 d3 Qe1 Kg4 f5 d1B+ Kc4 e3 f6 e2 f7 e4 Ra1 e3 Bf6 a2 Nd2 a4 Be5 a3 Bd6 Ra7 Kb4 Nf6 Ngf3 g1B Nd4 Bh2 Nc4 d2 Nc6 Kf3 Ne7 g4 Nb6 g3 Bh3 g2 Ng6 g1Q Be7 Nc6+ Kc3 Rh6 Nd7 Ba6 c8N Bc2 Rb1 d1N+ Kc4 a1R Nh8 Bd3+ Kb3 Nc3 Be6 Kg2 Nc5 Nfd5 Na4 Ra2 Bc5 Rd2 Bb6 Rf6 Rc1 Ndb4 Ne7 Qd6 Bc8 Nb1 Nc3 Bg3 Qd1 e1R Bb7 e2 Na2 Kf1 Ka4 Rb2 Rc2 Bf4 Qc1 Rd1 Rc5 Be5 Qc3 Rdd2 Rh2 Qg5 Rg2 Qf4 Rg8 Qc4 Qd4 Qc1 Rg6 Bf4 Bc8 Rd7 Bb7 Na7 Qc3 Qd5 Qd4 Bb8 Qe5 Qd6 Qc3 Bh6 f8R Bg7 Rfc8 Bf8 Nc6 Rdf7 Ne7 Rbc2 Qa1 Rb2 Rg3 Qe6 Rg7 Qd6 Rg6
5Bq1/7Q/4BP1R/N4K2/3q1pBq/rRr1P3/r2RNpnn/r1bbqbk1 b - - 0 1 illegal: No proof kernel
qB1R1q2/2R4b/1K1P1kq1/1bn1r1PR/5Np1/nr1bq2r/1bp5/Q2BNN2 b - - 0 1 illegal: No possible last move
1kqqr3/n6K/RRpB3b/q2B2p1/1PqrQP2/2NbN3/3bB2n/2Nn2n1 b - - 0 1 illegal: No possible last move
3b3n/1B2B2N/q1p1Rn2/2P3Pr/3np1qk/1bN1n3/qR2N3/2KBbqQr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 f6 gxf6 g5 f5 Qf3 f4 Qg4 hxg4 Kd1 f5 h4 Kf7 d4 Kg6 c4 Kh5 a4 e5 a5 b5 d5 b3 c5 b2 a6 f3 a7 e3 d6 b4 d7 g3 Na3 b1N Rh2 g2 Nh3 g1Q Re2 f2 Nc2 b3 Rd2 e4 Nb4 f4 Ra3 f3 Na6 b2 Ra1 c6 Nc7 e2+ Kc2 e1B Rd6 Nf6 Be2 f1Q Nd5 Nd2 Rb1 Qg4 Bd1 f2 Ng1 Nf3 Bf4 Qa5 d8N Nbd7 Ne6 Be7 Ne2 Nf8 Ndc3 Ng6 Nf8 Be6 Nh7 Bd8 Be5 Ba2 Re6 Qa6 Bd6 Rc8 a8B Bd5 Ra1 Bb3+ Kb1 Nd4 Ra2 Rc7 Bb7 Rd7 Be7 Rd6 Nf8 Rh6 Nh7 Nh8 Ra5 Rd5 Rb5 Rf5 Rb6 Rf3 Rb4 Rh3 Rb5 Rh1 Rb4 Qf3 Rb6 Kg4 h5 Kh4 Rb4 Qg4 Rb5 Rg6 h6 Rg8 Nf8 Rg6 h7 Rh6 Rb4 Rh5 Rb6 Qfg1 Rb5 f1N Rb4 Ng6 h8Q Ne3 Nh7 Qf1 Qf8 Nh8 Qg7 Ng8 Qe5 Nf6 Qh2+ Qgh3 Qg1 Qg4 Rb5 Ba4 Ka2 b1Q+ Ka3 Qc2 Rb2 Qd2 Ka2 Bb3+ Kb1 Qdd3+ Rc2 Qa2+ Kc1 Qda6 Rb2
BBN3r1/2K1b3/P5Q1/Rk2n1q1/1pb2q2/2rrnPBq/2R3p1/bNq1R2b b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 b5 c4 d5 h4 Kd7 a4 Kc6 a5 g5 c5 e5 h5 e3 Kd3 e2 h6 e1B h7 e4+ Kc2 b3+ Kb2 g3 Ka3 b4+ Ka4 g2 a6 d3 Qh5 e3 Ne2 g1Q Bg2 b2 Rh2 d2 Rh3 d1R Na3 b1Q Qh6+ Nf6 Bf3 g4 Nc2 g3 Bb2 Qd6 Ka5 Qf4 Ra2 Be7 Qf8 Nbd7 Be4 Rd3 Ra3 Bc3 Qf7 Rg8 h8B Qbf1 Rh1 Ng4 Be5 Qh3 Bb8 Nde5 Qg6+ Be6 Ba1 Bb2 Nc3 e2 Ne3 e1Q Nc4 Ne3 Nd6 Qc1 Nb1 Ra7 Ra2 Rc7 Nc8 Bd4 Bc3 Qgg2 Be1 Ba1 Bf5 d4 Be4+ Kd7 Kb6 Bf7 Na7 Bc4 Ba8 Rcc8 Qf7 Rc7 c6+ Kd6 Qg7 Kd5 Rf1 Rcc8 Kb7 Kc5 Qg6 Qg1 c7 Qgg2+ Nc6 Kb5 Rg1 Qhg4 Rh1 Q2h3 Ra3 Qgg5 Ra2 Rcd8 c8R Rc3 Kc7 d3 Ra3 d2 Na7+ Kc5 Ra2 d1B Ra4 Bf3 Ra5+ Bb5 Rg1 Bh1 f3 g2 Bg3 Rd5 Re1 Rdd3 Ra2 Bc4 Rc2 Qb2 Rf8 Qc1 Nc8 Kb5 Rd8 Ra3 Rd4 Rdc3 Rdd2 Rd3 Ra2 Rab3 Rdc2 Rbc3 Ra5+
3rRqQ1/Kn2NB1P/1N1q3k/R1rb1pN1/3qP1Rp/1qr3br/7n/1n4B1 b - - 0 1 illegal: No proof kernel
4nbK1/3bbN1p/3b1BB1/3nq3/NR1Q2P1/n1rqpq2/P1R2r2/2nkN1B1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 Kd5 Kf4 Kd4 Kg5 e5+ Kh5 b5 f4 b3 g4 h3 d3 c3 f5 b2 f6 c2 f7 h2 Nc3 b1N Qe1 e3 Qg3 e4 Nh3 b4 Qg1 b3 Bg2 b2 Nd5 c4 Bd2 c1B Qd1 c3 Qg1 c2 Nb6 Qf6 Nf4 Nd7 Na4 Qe5+ Kh4 Ndf6 Bb4 Nd5 Be7 Na3 Bf6 Bd7 Rb1 Rc8 Bf3 Rc4 Ng2 Rc3 Ne1 Bd2 Bd1 c1N Bc2 Be7 f8B Bd6 Qf1 e2 Qf4 Be7 Rg1 Bd6 Rg2 h1Q+ Rh2 Qf3 Bh6 Be7 Bhg5 Be3 Kh5 Bg1 Rg2 Bh2 Qd2 Bf4 Qd1 Ke3 d4 Nc7 d5 Ne8 d6 Bf8 Nd3 Ne7 Ne1 Nd5 Bd3 Be7 Kh6 Rf8 Rh2 Nec7 Kg7 Rf7+ Kh8 Ne8 Bh4 Bh6 Kg8 Bhf8 Ra1 b1Q Bf2+ Kf4 Rg2 e3 Bg6 Qc2 Bg1 Qd3 Rf2 Kg3 Rb1 Kf4 Nc2 e1B Rb4+ Kg3 Re2 Bf2 Rd2 Kg2 Ne1+ Kf1 Rdb2 Bg3 Qd2 Qdf5 Qd4 Qd3 R2b3 Ke2 Rb2+ Kd1 Rc2 Be6 d7 Bh2 d8N Bd7 Nb6 Qff4 Rb3 Qd6 Be5 Qe4 Rb5 Rf2 Rb4 Qf3 Bf6 Qe6+ Nf7 Bhd6 Na4 Qef5 Rb3 Qe5 Rb4
4k3/bqR2bpR/5qp1/2r4q/1N4rr/2nKPBNq/nN2B1P1/1QrnR3 b - - 0 1 illegal: No extended proof kernel
KQ4N1/3Rbp2/Bp1n4/n7/1Rq2rk1/1bq3NP/bbrqP3/1q1nBBN1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Ke6 a4 Kf5 c5 g5 c6 d5 a5 b6 a6 g3+ Kf3 g2 a7 b3 c7 b2 Qe1 d3 Ra3 g4+ Kf2 g3+ Kf3 d4 Qf2 d2 Nh3 d1B Qe3 g1B Rc3 g2 Qf2 d3 Qe3 d2 Rc2 Be7 Qa3 Nc6 Qc3 Rh4 Qd4 Na5 Nc3 b1Q Qh8 Nf6 Ne4 Ne8 Rb2 Bd4 Ng1 Nd6 Rb4 Be6 c8N Ba2 Ng3+ Kg5 Bb2 Bdb3 Bc3 d1N Be1 Bb2 Qf8 Rb8 a8B Qc7 Be4 Qc4 Bb7 Qbc2 Qd8 Qd2 Ba6 Ra8 Qc7 Ra7 Qb8 Rc7 Na7 Rg4 Nc6 Kh4 Ne5 Rc8 Nd7 Rc6 Nf6 Rc7 Nh3 g1Q Ng8 Qgd4 Rg1 Qcc1 Rh1 Rc2 Ng1 Qc4 Bf2 Ndb7 Be1 Qcc3+ Ke4 f3+ Kf5 Rd4 Ke5 f2 Nf6 Qh6 Ng8 Rc4+ Kd5 Nd6 Bb5 Rf4+ Bc4 Nab7 Kc6 Kg4 Kc7 Qe6 Kc6 Na5+ Kc7 Nc6 Bb5 Qec4 Ba6 Nc8 Kb7 Na5+ Ka8 Nd6 Nh5 Q1e3 Ng3 Qed2 Bg2 f1Q Nh3 Ne3 Bf2 Qb1 Rd1 Qdd4 Bf1 Nb5 Ng1 Qd8 Rd2 Nd1 Be1 Qdd4 Rd3 Qe3 Rd4 Qed2 Rd7 Nd6 h3+
1b3N2/rRRBPr1q/p2p1NP1/2q2b2/1Q4rr/N5Bn/2b4k/1nK1R1qq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 c4 Kf6 e4 Ke5 b4 h5 g4 f5 g5 h3 g6 h2 c5 a3 b5 d3 c6 f3 c7 Kf4 e5 Kg3 e6 h4 b6 a2 b7 f4 Bg2 a6 Qa4 f2 Qc6 f1R Qc2 h3 Qc5 f3 Qd4 f2 Qa7 Qe7 Be4 Qc5 Bf5 Nh6 Be4 Bd6 e7 Nf7 Bb2 Nc6 b8R Na5 Rb6 Rh4 Bc6 Nc4+ Kc3 d2 Kc2 d1B+ Kc1 Nd2+ Bc3 Ng5 Nf3 Rg1 Na3 f1R Rb7 Nb1 Qb8 Ra7 Ne5 Rf7 Ng4 Be5 Nf6 Bc2+ Kb2 Rg2 Rc1 h1Q Bd4 h2 Ba4 Bd6 Bf2+ Kh3 Re1 Rgg4 Kc1 Qg1 Bc6 h1Q Bb5 Kh2 Bc6 Be5 Ba4 d6 Bb5 Bd7 c8N Bd4 Nb6 Bdf5 Nbd7 Nh3 Nf8 Bc3 Rf1 Ba5 Bd7 Bb6 Re1 Bc7 Qd8 Bb8 Qa5 Nc3 Rab1 a1Q Rc7 Qa2 Rbb7 Nb1 Qb4 Qa1 Nh5 Qh8 Nf6 Qh7 Bg3+
4q2r/3Pq1qn/pnB3B1/N2qpnB1/QN2bPR1/b2R2r1/2nNk2K/1b6 b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 f4 Kf7 Kf2 Ke6 g4 Kd5 Kg2 Kd4 b4 h5 b5 c5 g5 a6 b6 h3+ Kg3 e3 g6 c3 d3 a3 b7 h2 g7 c4 Qe1 a2 Qf2 h4+ Kg2 h3+ Kg3 c2 Ba3 c1Q Qg2 e2 Qf3 e1N Bd6 c3 Bc7 c2 Qd1 Ke3 d4 Nd7 b8N Qd2 d5 c1Q d6 Nb6 Qa4 Bf5 d7 Nf6 g8B Nh7 Bd5 Qa3 Bb7 Qd5 Nc3 e5 Rb1 a1Q Rd1 Q1c1 Nb5 Bb1 Nf3 Nc2 Nd6 Qc8 Rg1 h1B Bd8 h2 Bh3 Ke2 Nc6 Bg2 Nc4 h1N+ Kh2 Ng3 Bg4 Nf5 N4a5 Qad6 Bh4 Q6e6 Bh5 Ba3 Bf6 Qe7 Rd3 Qcg8 Be8 Qe3 Nd2 Be4 Bh4 Qf3 Rg6 Qh5 Nb4 Qgf7 Rg7 Qfg6 Bf7 Rag8 Bc6 Qgh6 Rg1 Rg4 Rgg3 Qg7 Be8 Qhf7 Bg5 Qff8 Bg6 Qfe8 Rh3 Rg1 Rh4 Rg3 Rg4
k3R3/1rpbrRK1/3pQBbP/n2rq1nP/2r2Nqq/5B2/qN1b3N/4R3 b - - 0 1 illegal: Other
6nn/1pK5/QBNnr1Rr/2n1NpP1/rP3kR1/1qbBq1N1/6bR/1q4q1 b - - 0 1 illegal: No possible last move
1nN3r1/PPB1BBN1/1b1r1p2/4Rnp1/3qN1K1/Rb2q2r/4nbnr/Q6k b - - 0 1 illegal: No proof kernel
nRBQrnrb/3q2kN/Nn3N2/2p3bb/3p4/K1Pb1bRn/P4B2/1R3b2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 d5 f5 d6 fxe4 Qd3 exd6 Qe2 d5 Qd1 d4 Kd2 Kf7 g4 d5 f4 h5 c3 b5 Kc2 c5 Kb3 e3 f5 h3 g5 e2 f6 e1B Qg4 h4 Qg2 h2 Qg4 h3 Qf4 d3 Nf3 d4 Nh4 d2 Qd6 d1B+ Kb2 b3 Qe5 b4 Qe4 Nd7 Qg2 Bh5 Qe4 Ne7 Qe2 Bg7 Nf5 Re8 Bf4 Bh8 Ng7 Nd5 Qd2 Bh4 Qd3 Ba6 Be3 Nf8 Ne6 Nb6 Qe4 Qd7 Rg1 h1N Qd5 h2 Bh3 Bf1 Nd2 Nf2 Rb1 h1B Rg3 B1f3 g6+ Kg8 g7 Bg5 Bg4 Nh3 Bf2 Rab8 Ne4 Na8 f7+ Kh7 g8N Rbd8 Nc7 Kg7 Na6 Rb8 Nd2 Rbc8 Kc1 b2+ Kc2 Rb8 Kb3 Rbc8 Nf6 Rcd8 Rd1 b1B Nh7 Bbd3 Ne4 Rc8 Kb2 b3 Ka3 b2 Nef6 Rb8 Qd6 Rbd8 Qc7 Rc8 Qd8 b1N+ Kb2 Na3 Rb1 Nc4+ Kb3 Ncb6 Ka3 Ng6 Be6 Rg8 f8R Rb8 Qc7 Re8 Qd8 Qb7 Bc8 Qd7 Rf7+ Kh6 Re7 Nf8 Re2 Kg7 Reb2 Na4 Rb7 N4b6 Rb8
1b1Rqnb1/3P2b1/2B2n2/KR2Qb2/1n1N4/2pNBrb1/b1rp1P1R/1k1Bn3 b - - 0 1 illegal: No proof kernel
NbBN4/1nPbB3/q2p1K2/1r6/P3pN2/b4b1b/2BR1n1n/Qbn1rkR1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 c4 Kg6 a4 Kh5 f4 Kg4 f5 Kg3 f6 e5 f7 h5 c5 b5 c6 d3+ Ke3 d2 Qb3 d1B Nd2 h3 Qb2 h4 Be2 b3 Qa2 h2 Bd3 b4 Rb1 b2 Bc4 h3 Ngf3 b3 Bd5 Na6 Ra1 b1N Rf1 h1B Rg1 b2 Ng5 h2 Be6 Qa5 Re1 Rb8 Rf1 Bg4 Nh7 Nf6 Rg1 Rb5 Bb3 Ba3 f8N Nc3 Ng6 b1B Bc2 Re8 Nc4 Nc5 Nhf8 Bh3 Ne6 Ne2 Nb6 Qa6 Ngf4 Nb7 Nd8 d6 c7 Bcd7 Bb2 Nc1 Na8 Re7 Bc3 Re6 Qb2 Re8 Ra2 Ng4+ Kd2 Kf2 Qa1 Re6 Bd4+ e3+ Kc3 e4 Bf6 e2 Kd4 e1B Be7 Rg6 g3 Beb4 Rb2 Bc5+ Kd5 Bf3 Ra2 Nh6 g4 h1N g5 Ng4 Rb2 Rf6 g6 Nh2 g7 Rf7 g8B Ba7+ Kc4 Rff5 Be6 Bb8 Kd4 Rfd5+ Kc4 Rd1 Bf5 Be8 Bc8 Re1 Kd4 Rb3 Kd5 Bed7 Rg8 Kf1 Rg4 Be8 Ke6 Bd7+ Kf6 Rb6 Rg2 Rb5 Rd2 Nf2 Rb3 Bd1 Rg3 Bf3 Rg1+
1NB2N2/q1RQ1K2/bp4n1/5PRb/5ppr/2r2k1B/Pq3nRn/B2rb2q b - - 0 1 illegal: No proof kernel
2kr1BqR/1n4PR/4n1KN/5P2/qpb1bb2/bp3N2/B1p1R3/1b1QBr1n b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 h5 Kf4 b5 Kf5 c5 d4 e5 f4 e3 g4 h3 a4 h2 d5 e2 a5 e1N g5 h4 d6 c3 g6 c4 g7 b3 a6 c2 a7 c3 Be2 e4 Ra5 h3 Ba3 c1B Qd4 e3 Qc4 Nc2 Ra4 Nc6 Nd2 N2d4+ Kg6 Nf6 f5 Ne6 Rb4 Ne4 Bh5 e2 Kf7 e1Q Nb1 Ng3 Bd1 Na5 Bc2 Ba6 Nd2 Nb7 Qd3 Qe4 Ndf3 Bf4 Bb1 Kc8 Kg6 Be7 Qd5 Qg8 Ne5 Rb8 Rd4 Bf8 Rd3 Qa4 Ngf3 Be7 Re1 h1B a8R h2 Re2 Bg2 Rd1 h1B Nf7 Bf1 Rdd2 Bf8 Rh2 Bd3 Ba2 Bb1 Nh6 c2 Rde2 Bg2 Qd1 Nh1 Nd2 Be4 d7+ Kc7 d8B+ Kc8 Ba5 Bc5 Bb2 Ba3 Nf3 Rh7 Be1 b4 Be5 Bc4 Bd6 Rh8 Ng4 Rh3 Bf8 Rg3 Rh8 Rg1 Ra6 Rf1 Nh6 Kc7 Rd6 Rd8 Rdd2 Kb8 Rh2 Kc8 Rde2 Rd4 Nf7 Rd6 R2h7 Rd8 Nh6
1r1n2K1/b3N1P1/NN2p3/4pnBQ/R4n1R/R1rP1p1b/q1kqn3/1B1n2q1 b - - 0 1 illegal: No possible last move
RRqb4/Q1nnp1Nk/2b2PBr/6Bn/1K1pp1P1/B1RN4/1n3n2/2rq2r1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Kg6 b4 a5 f4 d5 c4 h5 b5 d3 Kc3 d2 b6 h3 f5+ Kh7 b7 h2 c5 d4+ Kc4 a3 c6 a4 c7 a2 Qe2 d1N Qg2 a3 Kb3 h4 Ne2 h3 Be3 Na6 b8B Bh6 Nec3 Bb7 c8R Nb2 Na4 Nf6 Nbc3 Bc6 Nb5 Bf4 Bc4 Nd7 f6 Bc7 Rhg1 h1N Bg5 h2 Rgb1 Nf2 Nd6 h1N Nf5 Ng3 Nc5 Nh5 Bf7 Qf8 Qh1 Bd8 Bd6 Nc7 Ng7 Ra5 Nd3 Rc5 Qf3 Rc1 Kb4 Rg1 Rc1 Qe8 Rab1 a1R Rc3 a2 Ra8 Qg8 Qd1 Qf8 Qa4 Qe8 Rf1 Rc1 Qa7 a1Q Bc5 Qb1 Re1 Qc2 Bd6 Qd1 Bg6+ Kg8 Re3 Rh6 Rf3 Kh8 Rf5 Qf8 Rb5 Qg8 Rbb8 Qc4+ Ka3 Qa6+ Kb4 Qc8 Ka5 Kg8 Ba3 Kh8 Kb4 Kg8 Be8 Kh7 Bg6+
r4bKB/PpN1q1BR/5qQN/p2r2n1/kP1rp2n/3r4/b2B1NRb/6r1 b - - 0 1 illegal: No proof kernel
q3rqq1/1bR1Q1b1/1q2N1kB/RR1Br3/N1n2Pp1/rBPp3p/4n3/n4K2 b - - 0 1 illegal: No proof kernel
1n1rbB2/1B6/1Rq2RNk/Qqb3N1/1n2P1bK/1r2pPpp/1R3brq/6N1 b - - 0 1 illegal: No proof kernel
K2nn2r/b1Bb2qB/5k2/3pN3/2Q4P/bnrNp1R1/1bPpB1Nq/5qR1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 b5 f4 g5 a4 d5 a5 e5 f5 e3 Kd3 g3 f6 e4+ Ke2 b3 a6 b2 a7 g4 Ra5 g2 Na3 b1Q Bb2 b4 Ra4 g3 Nf3 g1B Ba1 b3 Qd3 b2 Ne1 g2 Qc4 Bd7 Nd3 Qc7 Rh3 Bd6 Rg3 Nc6 Ra6 Re8 a8B Rc8 Bb7 Nd8 Rc6 Ke6 f7 Nf6 Ba6 Ne8 f8N+ Kf6 Ne6 Bf2 Rb6 g1Q Nef4 Qh2 Ng2 Qc1 Rb5 b1N Rb7 Nd2 Rb1 Bg1 Bc3 Qb7 Ba5 Nb3 Bc7 Bc5 Nb5 Bd6 Na7 Ba3 Nc6 Qa7 Nce5 Qb7 Rb2 Qa1 Rb1 Qb5 Kd1 e2+ Ke1 Be3 Rd1 Bec1 Kf2 e1B+ Ke2 e3 Kf3 Bed2 Be2 Bdb4 Kf4 Bc5 Rg1 Qb7 Bb5 Bcb2 Ba6 Ba7 Bb5 Bh3 Bd7 Bg4 Bf5 Qb5 Bh7 Bd7 Qc3 Qb7 Qc4 Qf1+ Nf2 d3 Ba5 d2 Qd4 Qh1 Nc4+ Ke7 Ke5 Ba4 Nd3 Rc5 Qc3 Qb4 Bc7 Qh2 Qd4 Bd7 Qc3 Ng7 Qd4 Kf7 Kd6 Qc3 Qe4 Bh3 Qg4 Ne8+ Kd7 Rc6 Kc8 Qg7 Nce5+ Ke7 Qf5 Rc3 Qg4 Ne6 Kb7 Nd8+ Ka8 Kf6 Qb4 Bd7 Qc4
1N6/4R3/k2Kb3/1rpp1r1p/bQ1P1N2/nN2bBRP/rqqn1q2/1BB2q2 b - - 0 1 legal: proof: f4 a5 b4 axb4 g3 e5 c3 bxc3 Qb3 exf4 Qd1 fxg3 e4 c5 Ke2 g5 Kf3 b5 d4 d5 a4 Kd7 h3 Kc7 e5 Kb6 e6 f5 a5+ Ka6 e7 h5 e8N g2 Bf4 g4+ Ke3 c2 Bg5 c1Q+ Kd3 g3 Bf6 f4 Qa4 f3 Qc4 f2 Ra2 Qc2+ Ke3 Be6 Kf4 Nd7 Qd3 Nb6 Ke5 Bh6 Qc3 Be3 Bd3 f1R Bg5 Nf6 Ra3 Ne4 Qb4 Nd2 Ne2 g1Q Nf4 g2 Nf6 Qf2 Nd7 g1Q Kd6 Qgg2 Be2 Qf6 Bf3 Rhb8 Rg1 Qh2 Rg3 Qf7 Bh6 Qff5 Rg7 Rb7 Re7 Nbc4+ Kc6 Raa7 Rb3 Na3 Kd6 Qb2 Rd3 Qh1 Bg5 Ra8 Rb3 Qfc2 Nb8+ Ka7 a6 Qhg2 Qc3 b4 Bh6 Kb6 a7 Ka5 Qc4 Rb5 Rd3 b3 Qb4+ Kb6 Bg5 Rg1 Bh6 Qgf1 Rc3 Rg5 Rd3 Qa2 Rc3 b2 Rd3 Nb3 Nd2 b1B Rc3 Rf5 Bg5 Na5 Nb3 Qab2 Be2 Bd2 Rg3 Be3 Bf3 Ba2 Nd7+ Ka6 Bh6 Rg8 a8B Rgg5 Bc6 N5c4+ Kc7 Nd2 Kd6 Rg8 Bg5 Ra8 Nb8+ Kb6 Be8 Ra5 Na1 Bb3 Bg6 Ba4 Nb3 Rf7 Bge4 Rf5 Nc6 Ka6 Bd3 Qcd1 Bb1 Qdc2 Nb8+ Kb6 Rd7 Ndc4+ Ke7 Bd2 Nc1 Bb3 Ba2 Nb1 Nfe2 Ra3 Be3 Ba4 Nb3 Bc1 Nf4 Bd2 Nc6 Ka6 Rc7 Be1 Bc1 Bd2 Rd7 Be3 Rb7 Nbd2 Bb1 Ra2 Rc7 Na3 Kd6 Qcd1 Re7 Qdc2 Nb8+
7n/rq5Q/b3RN1p/K2R3k/n2p3B/1r1P1p1N/1PR1q1nb/1BBn2rq b - - 0 1 illegal: No possible last move
4bB2/KBbn1n2/5RRp/p4pqB/r1P1qP2/2kn1q1N/2Rnr1b1/1Q3N2 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 cxb4 a4 bxa4 e5 g5 e6 gxh4 Nc3 dxe6 Nb1 e5 Bb2 e4 Ba3 Nh6 Bc1 Ng8 Ke2 Kd7 Ke3 Kc6 f4 Kd5 d4 f5 g4 e5 c3 a3 g5 a2 g6 b3 g7 b2 Qd2 h3 Ba6 h2 Ne2 Bd7 Ng1 Qg5 Qc2 Nh6 g8B+ Nf7 Nd2 b1N Ba3 h6 Bh7 Be8 Bg8 Bd6 Bb2 Nd7 Nh3 Bc7 Rg1 h1B Ba3 Bg2 Nf1 Nd2 Bb7+ Kc4 Rc1 a1Q Bf8 Qa3 d5 a6 d6 Qb3 Ke2 e3 Qb1 e4 Rc2 Ra7 Bh7 Rg8 Bg6 Rg7 Ke1 e2 Kf2 e1N Ke3 Nd3 Bh5 Rg6 Qb2 Re6 Qb1 Kc5 c4 Kb4 Kd4 e3 Ra2 e2 Rc2 Re4+ Kd5 e1Q Kc6 N7c5+ d7 Ra8 Kd5 Re2+ Kd4 Ra7 d8R Ra8 Rd6 Nd7 Bhf3 Ra7 Kd5 Ra8 Kc6 Ra7 Ra2 Ra8 Rf6+ Kc3 Rb2 a5 Ra2 Rb8 Rb2 Qa3 Kb5 Qb3+ Ka6 Qa3 Ka7 Qb3 Bbd5 Rb4 Bb7 Ra4 Bg4 Rf2 Bgf3 Qe4 Bh5 Qd1 Ra2 Qdf3 Rb2 Re2 Ra2 Bh1 Rg4 Bg2 Rb2 Qh4 Rgg6 Qg5 Rc2+
2B2rR1/K7/R1bp1nrb/5RnB/qp2pN1B/Q1qr3P/P2bk3/Nq2r3 b - - 0 1 illegal: No possible last move
B2kRn2/3r2b1/3pqnQ1/5qBp/1BqR2bN/p4PbP/b2n4/r1RKN3 b - - 0 1 legal: proof: e4 c5 a4 f5 d4 fxe4 f3 cxd4 a5 g5 a6 g4 Ke2 g3 Qe1 bxa6 Qf2 gxf2 Kd2 a5 Kd1 a4 b4 e5 g4 a5 c4 h5 h3 e3 c5 d6 b5 d3 c6 a3 c7 a2 g5 e2+ Kd2 e1B+ Kd1 d2 b6 a4 g6 e4 b7 e3 g7 Nf6 g8Q Bg4 c8R Rh7 Bb5+ Nbd7 b8B f1N Bc6 Bg3 Rc7 Qc8 Ne2 Kd8 Qg6 Bg7 Na3 Nf8 Nc2 Qf5 Ned4 Ra6 Rb1 a1Q Ba8 Qa2 Ba7 Qc4 Bc5 Ra7 Re7 Rd7 Rg1 a3 Be4 Rb7 Ra1 Rb1 Ra2 Ra1 Bb4 Qcb5 Ne1 e2+ Kc2 Qbd5 Rb2 Qde6 Rb3 Qf7 Rd3 Q7e6 Ba8 d1B+ Kc3 Bb3 Bg5 Bc4 Kc2 Ba2 Rh1 Nd2 Rf1 Qfe4 Nf5 Q4d5 Nh4 Qdf5 Neg2 e1Q Rg1 Qb5 Rd4 Q1e2 Rc1 Q2c4+ Kd1 Qbf5 Ne1 Qed5 Re2 Qde6 Ree4 Bh8 Re5 Rd7 Re2 Bg7 Re3 Qed5 Re7 Qde6 Re8+
1q1b1rbR/3n2Nn/2p1N3/3P1p1n/K3PkN1/RpB3q1/qr5b/Q4nBB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 d4 Ke6 Kd2 Kf5 Kc2 g5 h4 b5 e3 g3 d5 g4 a5 g2 h5 g3 h6 f3 a6 c3 Kb3 f2 h7 c6 a7 c2 Rh2 Be6 Nd2 Be7 e4+ Kf4 Rb1 f5 Qh5 Nf6 Rh1 Rf8 h8B Bg8 Bb2 Nbd7 Bc3 Rb8 a8N Nh7 Be2 f1N Ngf3 g1B Nc7 g2 Nd4 Bh2 Bf3 g1Q Ra1 Qg3 Ne8 Qc8 Nc4 Bd8 Ng7 c1N+ Kb2 b3 Ka3 b4+ Ka4 b2 Ne3 b1Q Ng4 Rb5 Ra3 Qb8 Qh4 Nd3 Qf6 Qa2 Bg2 Bg1 Rh6 Rb6 Bh1 Bh2 Qe5+ Kg5 Rh4 Nf4 Rh3 Nh5 Nde6+ Kg6 Bd4 Rb5 Bg1 Rb7 Nc7 Kg5 Qa1 Rb6 Nge8 Kf4 Bc3 b3 Ng7 Rb4+ Ka5 Rd4 Rh4 Rd2 Ka4 Rb2 Rh3 N5f6 Rh6 Ng5 Rh7 Nh5 Rh8 Nh7 Nce6+
5qk1/q1b2BB1/1p6/b3r1r1/1RNRbnB1/2Nq2qP/Kp3prP/N1Qn4 b - - 0 1 illegal: Other
b3R1q1/1B1n2Rn/1pK3N1/1PBrk3/3q1p1b/Q1rp1q2/BRP1r2n/3N1r2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 d4 c5 b5 cxd4 Qd3 e5 Qa3 exf4 Qb4 axb4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kf3 d5 a4 h5 e4 b3 g4 d3 a5 d4 e5 b6 g5 d2 a6 d1Q+ Ne2 h3 g6 b2 a7 h4 g7 h2 Bg2 h3 Rg1 h1R Ra5 h2 Re1 Rh3+ Kf2 f3 Bh6 f4 Nbc3 b1R Rg1 Be7 Ng3 Nf6 Nf5 Nbd7 Ra2 Nh7 Rb2 Qg8 Bg5 Qd3 Nd1 Bb7 Bf6 Rc8 a8Q Rd8 Qa3 Ba8 Bg5 Kd5 e6 Ke5 Bh4 Bf6 e7 Rc1 e8R+ Be7 Nde3 Re1 Nd1 Qe4 Bg3 Re3 Bh4 Rc3 Bg3 Rh6 Bh4 Re6 Bg5 Bf6 Ne7 d3 Bh4 Qf7 g8B Qd4+ Kf1 f2 Bb7 Bg5 Kg2 f1N Bf2 Bh4 Kf3 Qg6 Bf7 Qg8 Rg7 Rg1 Be3 h1Q+ Rg2 Kf6 Bf2 Re2 Ba2 Qd6 Be3 Nh2+ Ke4 Rf1 Bbd5 Qg1 Rg7 Qg3 Bb7 Qc5 Be6 Qb4+ Kd5 Qe4+ Kd6 Qgf3 Bc5 Qd4+ Kc7 Ke5 Bb3 Ndf6 Ba2 Rd5 Kc6 Nd7 Ng6+
1b3B1N/1N4rb/pRR1P1q1/K1Q2q2/1rq2pqp/3Br1n1/1P1b4/1Rk1N1n1 b - - 0 1 illegal: No possible last move
6B1/KR2qb1b/p2pRqnB/1Pr2P2/N2n4/1nR3N1/n1Np1k1b/r3q2Q b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 b4 Ke5 c4 Kf4 g5 e5 f3 Kg3 c5 h5 b5 e3+ Kd3 h3 Kc4 h4 c6 h2 c7 d3 f4 e2 g6 e1Q g7 d2 Qh5 a3 Qf5 e4 Qh5 a2 Kd4 h3 Qh6 e3 Ne2+ Kf2 Nec3 e2 Rg1 h1Q Rg6 h2 Rf6 Qc6 Na3 h1B Nc2 Bd6 Qg5 Na6 Bg2 Nb4 Na4 Rh5 Bb2 Ne7 g8N Ng6 Bd5 Qe7 Nh6 Be4 Bg8 Bd3 Qg4 Rc5 Qh5 Qb6 Rc1 a1N Re6 Na2 Qh1 Bc4 Nf5 Nb3+ Ke4 Be5 Ng3 d6 Bc3 Qa5 Ba1 Qc3 Bb2 Bd7 c8R Be8 f5 Bf7 Ba1 Bf4 Rc7 Qcf6 Rb7 Be5 Nf1 Bh2 Bb2 Qd1 Bc3 e1N Ng3 Nf3 Be5 Nfd4 Bf4 Nf8 Bh6 Qe1+ Ne3 Bg6 Rc2 Bh7 Rc3 Qc1 Nc2 Ng6 Re5 Bf7 Re6 Rc6 Kd5 Qe1 Nh5 Ra6 Ng3 Rc8 Rb6 Ra5 Rb7 a6 Nc5 Ra3 Na4 Nac1 Ra7 Ra1 Rac7 Nf3 Kc6 Nfd4+ Kb6 Na2 Rb7 Rc5 Ka7
2q4Q/r3b1P1/2Bn1NB1/p2r1qR1/1P1b4/nRpn2bp/3rk3/R3BbNK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 d4 Kd6 e4 h5 b4 a5 g4 c5 Kg2 f5 d5 Ke5 d6 h3+ Kh2 a3 g5 h4 g6 c3 d7 c2 g7 f3 Qe1 Kd4 e5 f2 e6 a2 e7 c4 e8B f4 Qe6 f3 Bg5 c1B Na3 Na6 Be7 Nc5 Qd6+ Ke3 Qd1 Rh5 Nb5 Nf6 Qd6 Nd3 Bg6 Rd5 Ne2 Ra7 Nbd4 Ne8 Qa6 Nd6 Qb5 Ba6 Rg1 Qc8 Rb1 a1B Kh1 h2 Bd8 Be7 Bg2 f1Q Qc6 f2 Nf3 Bd4 Bc7 c3 d8R Bd2 Qa4 Be1 Ng3 Bc4 Nh5 Ke2 Rb3 Bb5 Bh3 Bc4 Bhf5 Qh3 Rg3 f1N Qe8 Nd2 Be4 Qhf5 Qh8 Nb1 Rg5 Na3 Nf6 Bg3 Bb6 Rc5 Bc6 Rd5 Kg2 h1R Rf8 Bde5 Bf2 Rd1 Be1 h3+ Kh1 Rd2 Re8 Bd4 Rd8 Kd1 Re8 Bf8 Re2 Be7 Rg2 Bb5 Rg1 Ba6 Bf2+ Ke2 Ra1 Bc4 Be1 Nc5 Ng8 Ke3 Bb5 Bf1 Nf6 Nd3 Bc6 Ke2 Ng1+
1rQ2k2/2Nnnp2/pqN1Nb1b/R1P1R1rR/6r1/K1p1B1Pb/2B2q2/4n2b b - - 0 1 illegal: No proof kernel
q1bbrRbK/3BP3/r2qbRPN/n5r1/4k1B1/Bp3Np1/3p2Q1/2N1q2n b - - 0 1 illegal: No proof kernel
8/Nb1p2pQ/n1r2pnB/4P3/b3nqr1/NqBRb2K/3P1rRn/2R1N2k b - - 0 1 legal: proof: f4 b5 g4 e5 b4 exf4 a4 h5 Bg2 hxg4 Bc6 bxa4 b5 Qg5 b6 Qd8 Bb5 c6 Bb2 cxb5 Ba3 Bb4 Bc1 Bf8 Kf2 Ke7 Kg2 Kf6 e4 Ke5 h4 a5 c4 a3 b7 f3+ Kg3 a4 c5 a2 h5 f6 c6 a3 h6 f2 c7 f1N+ Kh4 Kf4 e5 b4 h7 g3 Ne2+ Kf3 Ng1+ Kg2 Kg4 b3 Bb2 Na6 b8B Ne7 Qc2 Bb7 c8R Nh2+ Kh4 Ng6+ Kh5 Qb6 Nf3 Bc5 Qd3 Be3 Bc3 b2 Qd4 Qb3 Rc7 Rc8 Rc5 Rc6 Ba7 Rac8 Re1 Rh8 Re2+ Kh1 Rd5 g2 Ne1 g1R Qh4 Rg2 Rd4 Rf2 Rd3 Rhc8 h8N Rc4 Bcd4 R8c6 Nf7 Rb4 Nd6 Rbc4 Nc3 b1B Ndb5 Bc2 Rc1 a1Q Nb1 a2 Bc3 Rg4 N1a3 Qab1 Bad4 a1N Na7 Qc4 Bb6 Ba4 Qh3 Qbb3 Bc5 Rf1 Rg2 Qf4 Qh4 Qbc4 Bb6 Nb3 Bbd4 Nbc5 Qh3 Bf2 Be3 Qb3 Qh4 Ne4 Qh3 Qf3 Bg5 Be3 Bh6 Qf4 Qh4 Rf2 Qh3 Rg3 Qf5 Nf8 Qh7 Rg6 Rg4 Rg5+ Kh4 Ng6+ Kh3 Rd6 Ra1 Rc6 Rg2 Rg4 Rc1
8/K1pRN3/1Bb1kr2/b1R2BpP/1n1P1RNq/1q1nrrB1/1Q1np3/3n2q1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 b5 a4 e5 h4 b3 f4 b2 d4 b4 a5 g3 h5 b3 f5 c3 a6 c2 f6 g2 a7 Nc6 Be2 Ke6 f7 Nb4 Ra2 Ne7 Nd2 b1N Ndf3 b2 Qd2 Bb7 Nh3 g1Q+ Nf2 Rh6 Nh4 Rf6 Bd3 Bc6 Nf5 Ned5+ Ke2 g6 Ng4 e3 Ne7 e4 Ra5 Rf3 Qc3 Nd2 Rc5 b1Q Rh4 Qb3 Qb2 Rb8 a8R Rb6 Rc8 Bh6 f8B Bf4 Nh2 Bg3 Rb8 Be1 Rf4 Ra6 Ng4 Rb6 Nf5 Qh4 Rd8 g5 Rd7 Ra6 Ne7 Rb6 Qa2 Ra6 Ba3 c1R Bg7 Rc3 Be5 Rb6 Bc2 Rd3 Qb2 Ra6 Kd1 e2+ Kc1 e3 Bb1 Nc2 Bb4 Rb6 Ba5 Nc3 Bd6 Ra6 Bb6 Nd1 Be5 Nf1 Bd6 Ba5 Be5 Nb4 Bc2 e1N Kb1 Rc3 Bf5+ Kf7 Bd6 e2 Be5 Rce3 Kc1 Ng3 Kd2 Ned3 Bd6 Qe6 Be5 Nd5+ Kc2 Nf1 Kb3 Nd2+ Ka3 N5b4 Bd6 Ba8 Ka4 Qb3+ Kb5 Bd5 Re4 Ba8 Bg3 Bd5 Rf4 Bb7 Ba7 Rf6 Bb6 Be4 Bh7 Ke6 Bg6 Nc2+ Ka6 Bc6 Ka7 Ncb4 Bf5+
1r2R3/npP5/1p1kB2K/3b4/nNB1n1qQ/1Pbp3N/3nq1rr/1qNRB3 b - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 d5 gxh4 d6 cxd6 Qd4 d5 Qb4 d4 Qb6 axb6 Kd2 Ke7 e4 h5 g4 f5 a4 d5 c4 h3 a5 f3 b3 h2 e5 f2 e6 d3 Ke3 d2 Kf4 d1N Kg5 d4 a6 d3 a7 h4 c5 f4 c6 f3 c7 h3 Bd2 Nf6 Bc1 Nc3 Bd2 Qd4 Be1 Kd6 e7 Na4 Nc3 Bg7 Na2 Be6 Rd1 Rg8 Nc1 Nc6 e8B Qe4 Bf7 Rab8 a8Q Na7 Bg2 Bh8+ Kh6 f1Q g5 f2 g6 Qg4 g7 Qfe2 Bd5 f1N Bc4 Bd5 Be6 Ne4 Bc3 Rbf8 Be1 Nfd2 Qe8 Rf2 Qh5 Rg2 Qh4 Rb8 g8N Bc3 Nf6 Rg3 Nf3 Rg2 Rf1 h1Q Ng5 h2 Nh3 Qg1 Rf3 h1R Re3 Bc6 Nd5 Rhh2 Nb4 Bd5 Rg3 Qd4 Re3 Qc5 Nc6 Qa3 Nb4 Qb2 Rf3 Qc2 Rf8 Qb1 Re8
3R1Q1b/b1b2R2/2bnbb2/3q3k/1N1p3N/Bpr1r1BP/3PB2p/1n2K1Rn b - - 0 1 illegal: No proof kernel
3b4/PbN1b1Rb/N2R2qr/bK3P1Q/1p2N1Bn/1rpRp1B1/3b3k/3n3r b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 h4 Ke6 a4 Ke5 a5 Kf4 d4+ e3 f3 Kg3 a6 e5 d5 g5 h5 b5 f4 c5 h6 c3 Kd3 c2 a7 b3 d6 e2 d7 e1B h7 c4+ Ke2 e4 Qd2 b2 Ra4 Nh6 Ke3 Bb7 Kd4 Qf6+ Ke3 Na6 d8R Nf5+ Ke2 Nh4 Ke3 Nc7 Nh3 Nd5+ Ke2 Qg6 Rd6 Ne3 Nc3 b1B Rg1+ Kh2 Nf2 g3 Qd5 g4 Qh5 g2 Ra3 g3 Na4 Be7 Rad3 Nd1 Nc5 Rab8 Na6 Ba5 Ba3 e3 Ne4 c1B Bb4 Bad8 Be1 c3 Bf2 Bd2 Be1 Rf8 h8N Rf6 Nf7 Re6 Nfg5 Ba5 Rd7 Rb6 R3d6 Rh8 Ne6 Rh6 Nf2 Bf5 Ne4 Bd8 Kd3 Be7 Be2 Bd8 Rf1 g1B Re7 g2 Rg7 Bf2 Nec7 g1R Bg4 Rh1 Kd4 Qe8 Kc5 Bh7 f5 Qg6 Rg1 Bg3 Rd3 Be5 Rgd7 Bef6 R7d6 Bfe7 Nb8 b4 Kc4 Ra6 Kb5 Bb6 Rg3 Ra3 Nba6 Rb3 Be2 Qe6 Rg7 Qg6 Bg4 Ba5 Bg3+
R1Q1K1N1/pkBRb2B/3Pb1Pn/1n2n1r1/Rr1p4/4pNB1/8/nn3qnr b - - 0 1 illegal: No proof kernel
Rn1n2rr/R1Rknnrb/r2BN3/1pP4K/2n5/3P2q1/p2p2B1/b3B1NQ b - - 0 1 illegal: No possible last move
r1B1b1nk/1BR2RB1/1NqQP2b/1p4r1/3q1Pn1/N1b4p/Kpb1b1b1/3R4 b - - 0 1 illegal: No proof kernel
1RB4N/q1n2pN1/1n1pbrbn/Pk3r1n/1n1Pb1R1/Q4B2/1R1p4/2bN3K b - - 0 1 legal: proof: h4 c5 f4 g5 b4 gxh4 f5 a5 d3 axb4 f6 c4 Qd2 c3 Qd1 exf6 Bd2 cxd2+ Kf2 f5 Rh2 f4 Rh3 Qf6 Rh1 Qd8 e4 b5 g4 h5 Kg2 f3+ Kh2 b3 c4 h3 a4 f2 c5 b2 e5 b4 g5 b3 g6 h4 a5 Qc7 g7 Rh5 c6 Nh6 g8B Ra6 d4 Rf5 Bb5 Ba3 Ra2 Qa7 c7 Nc6 e6 Nb4 e7 Raf6 Nf3 f1N+ Kg1 h2+ Kg2 h3+ Kf2 Ne3 Qg1 Ned5 Ba6 d6 Nc3 Kd7 e8N Kc6 Qa1 b1N Rb2 Be6 c8R+ Nc7 Nd1 Nc3 Bh7 Ncd5 Rb8 Nb6 Rg1 h1B Bc8 h2 Rg4 Kb5 Ng7 Bg2 Bg6 h1N+ Kg1 Ng3 Ne5 Nh5 Bh7 Bb7 Ng6 Bbd5 Nh8 Be4 Rc2 Bc1 Qa3 b2 Kh2 b1B Rb2 Rf3 Kh1 Bbd3 Bf5 Rf2+ Rg2 Bc2 Bg4 Bg6 Rg1 R2f5 Bf3 Be4 Rg4
5RrB/r2p1rr1/Rpp1nP1K/1b2Nb2/3r1P2/4q1kB/bn1QB3/RN2b3 b - - 0 1 illegal: Other
3r4/Q1p2rrP/P1q2R2/2np4/3RNNB1/2bq1r1B/k1pr2rN/2Bn1b1K b - - 0 1 illegal: No proof kernel
R1N5/P1r3R1/7r/2pnN3/1B2p1kq/brN1pR2/K1QPBr1n/4rbbb b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 a4 Kf7 f4 Kg6 g4 h5 a5 b5 a6 e5 f5+ Kg5 a7 b3 f6 b2 f7 h3 Nc3 b1R Qc2 h4 Kd1 h2 Qd3 h3 Kc2 b4 Ra6 b3+ Kd1 b2 Kc2 Nd7 Nge2 Ngf6 Qf3 Rh7 Ra5 Ba6 Ra4 Bc5 f8N Nd5 Ra5 N7f6 Na2 c3 Kb3 c2 Rg1 h1B Qd3 h2 Ra3 c6 Ng6 Rc7 Rg2 Bg1 Nef4 c5 Ne7 Kh4 g5 Ng4 g6 e3 g7 e4 g8R Ra1 Nc8 b1R+ Bb2 c1B Be2 Bb5 Ng6+ Kh5 Rf8 Qh4 Ra6 Rb8 Ka3 Rb6 Rgf2 Rf6 Qc2 Bd3 Rg2 Rf2 Raf6 Bb5 Rf3 Kg5 Bd1 Bf1 Be2 Kh5 Kb3 Kg5 Nc3 Ra3+ Kc4 Rb3 Ba3 Kh5 Bb4 Ba3 Rgg3 Re1 Rg8 Bhg2 Rg7 h1R Rf8 Rh3 Rgf3 Bh1 Re8 Nh2 Rd8 Kg4 Re8 Rb2 Rh8 Ra2 Kb3 Raa1 Rhf8 Rab1+ Ka2 Rb3 Nb6 Qh8 Ra8 Rh6 Nc8 Qd8 Bd1 Qf6 Be2 Qh4 Ne5+
k1R1b2r/1Nn4Q/2P5/1B1p1r1B/1nNrqn2/1b3pB1/nP4pK/b2r1RN1 b - - 0 1 illegal: Other
1Kb5/1b1R2Np/2b4N/2nP3n/1p1BB1Qb/2r1p1r1/BrqR1k1P/3Rrn2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Kf2 Kd7 a4 Ke6 d4 Kf5 a5 b5 a6 e5 g3 c5 d5 b4 a7 e3+ Kf3 e4+ Ke2 Kg4 Qd2 f5 Qc2 c4 Na3 f3+ Ke1 e2 Kf2 e1R Nb5 f4 Nh3 Qc7 Qe2 c2 Bb2 c1R Nd4 c3 Ra3 c2 Rd3 Na6 Ne6 Nc5 Bd4 Nf6 Ng7 Be7 Ng5 Rg8 Nf7 Nh5 Bg2 Bh4 Nh6+ Kg5 Qd1 Rb1 Rg1 c1N Rf1 Rb8 a8B N1b3 Bc6 Nd2 Ba4 Rb2 Bb3 Qc6 Ba2 e3+ Kg1 Rb6 g4 f2+ Kh1 Bb7 Be4 f3 Qe2 Kf4 g5 Qa4 g6 Rc6 Qd1 Qc2 Qe2 Rc1 Rd1 f1B Qg2 f2 Qh3 Be2 Kg2 Nf1 Qe6 Bg4 Qd7 Be6 Qc8 Kg5 Kf3 Bg3 Qd7 Kh4 Qc8 Kh3 Qd7 Bh4 Qc8 Nhg3 Kf4 Nh5+ Ke5 Rc7 Kd6 Ra1 R1d2 Re1 Rd1 Bg4 Qf5 Bc6 Qg5 Bc8 Qf4 Ra7 Qg5 Ra3 Kc7 Rc3 Kb8 B6b7 Qf4 Bc6 Bf5+ Kg2 Be4+ Kg1 Qf5 Nd2 Qh3 f1B Qg4+ Kf2 Ngf5 Rd8 g7 Be2 g8R Nf1 Rg7 Rg8 Rd7 Rg6 Qh3 Rg3 Ng7 B8b7 Qe6 Bg4 Qg6 Be6 Qg4 Bf5 Rd6 Bfc8 Rd8 Qb1 Rd7 Qc2 R3d2+
b1R1N1rb/4bqQ1/5r2/R1N2B2/pp2N3/k1rP3b/pPRr1B1K/2qn3n b - - 0 1 illegal: Other
R3Rb2/N3r3/BN2R2q/1K2prBn/2r3bq/2pqp3/qPkPnQ1B/1r6 b - - 0 1 illegal: No proof kernel forced: bxDB
2N4R/1B3rr1/NNP1rb1K/B3b2P/b7/1n1p3r/qbpkpqn1/1R3QR1 b - - 0 1 illegal: No proof kernel
2QK2R1/5b2/rBPpq1N1/rR1P1k1n/1qpb2bn/4p3/Brr5/2BNb1N1 b - - 0 1 illegal: No proof kernel
Nb1K2n1/8/P2nB2r/B1bqq3/R1p1pNrR/4Q2p/1rb2RP1/kbr3N1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Ke3 Kd5 d4 c5 a4 b5 f4 h5 f5 b3 f6 c3 a5 b2 a6 h3 f7 h2 Na3 b1B Nc2 h4 Bd3 h3 Ra2 b4 Qg4 c4 Ra5+ Bc5 f8R b3 Ne1 b2 Rf6 c2 Rb5 Rh6 Qf4 Bf5 Bd2 c1R Ba5 Nd7 Rb4 Nb6 Rf7 Bg6 Rh7 Nc8 Be2 Rb8 Nd3 Nd6 Bg4 Bc2 Bc8 b1R Qg5 Rb2 Nf4+ Kc6 Be6 Qe7 Kf2 e3+ Kg3 e2 Kg4 e1B Rh8 Bf2 Rh7 Ba7 d5+ Kc5 Rh8 Kd4 Rh7 Ne4 d6 Kc3 d7 Nd6 d8N Bfc5 Rh8 Qg7 Qe7 Rc8 Kg5 Bb8 Qe8 Qb7 Qe7 Qd5 Qa7 Ne7 Kf6 Rc6 Rh7 Rh4 Rh8 Rg4 Rh4 Bb1 Qb6 Bgc2 Qa7 e4 Qb6 Nb7 Kf7 Ng8 Ke8 Nd6+ Kd7 Rb3 Qa7 Kb2 Qb6 Bf2 Qe3 Ka1 Bf7 Qh5 Qa7 Be3 Nfe2 Bf2 Ne6 Qf5 Kd8 Qh5 Nc7 Rc5 Na8 Rb2 Nf3 Rf5 Re1 h1Q Rf1 Qh2 Nfg1 Rf6 Be6 Rh6 Qd4 Be3 Rf2 Qd5 Qb6 Qhe5 Nf4 Qb5 Qd4 Qbd5 Qd2 Bd4 Qe3 Bc5 Ra4+
n2qN1b1/N1r2q1R/p1BbP2p/3n1rn1/6KN/P3q1n1/2qkQ1p1/R4BB1 b - - 0 1 legal: proof: g4 b5 d4 g5 c4 bxc4 h4 gxh4 d5 f5 g5 e6 Qd3 exd5 Qg3 d4 Qg4 fxg4 f4 Kf7 Kf2 Ke6 b4 Kf5 a3 Ke4 b5 d5 g6 c5 f5 d3 g7 d2 b6 d1Q f6 h3 Kg3 a6 e3 h6 f7 c3 b7 d4 Ne2 Kd3 e4 c2 e5 h2 Bg2 c4 Rg1 h1N+ Kf4 g3 Bd5 g2 Be6 c3 Rf1 Nf6 g8B Bd6 f8Q Nbd7 b8N Nh7 Bb2 c1Q+ Kf3 c2 Rf2 Nb6 Qe8 Qe3+ Kg4 c1Q Nc3 Ng3 Nb5 Qcc7 Nc6 Kd2 Nca7 d3 Rf7 Qdc2 Bd4 Ng5 Bd7 Rh7 Nf4 Rb8 Bc5 Na8 Ng6 Bb7 Bd4 Bd5 Bc6 Bb3 Rg7 Qf7 Nc7 Rb5 Nh4 Rc5 Qe6 Ra5 Ne8 Rc5 Bd5 Rc7 Bc5 Rh8 Bh7 Rf8 Bc6 Qg1 Ra2 Qg6 Bb6 Ke1 Ba4 d2 Re7 d1N Ra1 Kd2 Bc6 Nc3 Bc5 Qg8 Bd3 Rf5 Rh7 Qg6 Qe7 Bg8 Bf1 Qf7 Bb6 Qf2 Bd4 Qe1 Bg1 Nd5 Qe6 Ndb6 Qc4 Qe3 e6 Nd5 Qe2+
Bb2n3/n4P1R/rQ6/r1r3qp/1r1nn1B1/P2N2BK/p2pb3/1NNq1Rk1 b - - 0 1 illegal: No proof kernel
1Q2rRbk/2KPbr2/Np4nn/7B/P3n1Bp/q2RR1r1/pn1Bq3/2N4r b - - 0 1 illegal: No proof kernel
q4B2/Q2pbn1K/1n4R1/1rp5/k1N1b1p1/1bPRN2R/Pr4NB/nn1b1q2 b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 a5 g5 axb4 g6 h5 Nh3 h4 Nf4 h3 Bg2 hxg2 Nh3 fxg6 Ng1 g5 Be3 g4 Bg5 Ra4 Bc1 Ra8 Kd2 g3 Kd3 b5 Ke4 c5 Kf5 g5 Kg6 d3 e4 b3 f4 d2 h4 g4 c3 b2 e5 b4 h5 b3 e6 Nh6 e7 Ba6 f5 Bc4 f6 Na6 Nh3 g1N Qf1 g2 Qf5 Rb8 Qe6 Ne2 Nf2 g1Q Qe3 Nd4 Nd1 Nb4 Qd3 Ndc2 Rh3 Nd5 Na3 b1B Qg3 b2 Qc7 Qc8 Qa7 Qf1 Qa5 Nf5 h6 Nd6 Qb6 Rb7 h7 Qa8 Qa7 Rg8+ Kh5 Kf7 h8N+ Ke6 f7 Ke5 Ng6+ Ke4 Rh2 Kd3 e8R Rb3 Rc8 Be7 Rc6 Rgb8 f8B Nf7 Nh4 R8b4 Kg6 Nb6 Ng2 Be6 Nb5 Kc4 Kh7 Bd5 Rh3 Be6 Nd4 Bd5 Nf5 Kb5 Rg6 Bc4 Qc7 Ka4 Nd6 Rb5 Qb7 Ne1 Qc7 Be4 Qb8 Nc2 Qb7 b1N Qc7 Nba3 Qa7+ Ra5 Rb1 Rb2 Ra1 Bb3 Nc4 Qf4 Nde3 Qf1 Nd5 d1B Bch6 Bdf3 Rd1 Na1 Rd3 Nb1 Bf4 Be2 Bh2 Bed1 Qc7 Rb5 Nde3 Nd8 Qb7 Nf7 Qa7+
q4rb1/1rrp2K1/2R2Bnp/1bb1pP2/q1B1R2k/bN4n1/4NP1B/N2Q3r b - - 0 1 illegal: Other
1n2qr2/qBB3P1/3p2p1/b2nNq2/k2p1nN1/1B3bPR/1K1p3N/Q1r2r1R b - - 0 1 illegal: Other
R2R2n1/1r3p2/1p4qp/N7/1PpRb1Bk/Q5bP/Kb2nrrN/n1BBq3 b - - 0 1 legal: proof: e4 b5 c4 bxc4 f4 d5 f5 dxe4 f6 gxf6 Qc2 f5 Qb3 f4 Qb6 axb6 Kd1 c5 Kc2 e5 a4 Ke7 g4 Kf6 b4 Kg5 Kb2 e3 d4 e2 d5 e1Q d6 h6 a5 c3+ Ka2 e4 d7 e3 a6 e2 h3 c2 a7 c4 Ba3 c1N+ Kb2 f3 Nd2 f2 Nb3 Kh4 g5 Nc6 g6 Rb8 a8Q Qg5 d8R Nd4 g7 Rb7 Na5 Ncb3 Ka2 Qg6 Bc1 Bf5 Rh2 Be4 Nf3+ Kg3 Bg2 f1R Rh1 Be7 Nh2 Rf2 Bf3 Bf6 Bg4 Kh4 Qa6 Nf3 Rg1 Bb2 Rg3 Ng1 Rgd3 Rh7 R3d4 Rh8 Rb1 Na1 Qa7 Ne7 g8B Rh7 Ra8 Rg7 Bh7 Ng8 Rdd8 Qf1 Rd4 e1B Bd1 Ne2 Rad8 Qd6 Bf5 Rgg2 Bg4 Qg6 Ra8 Rf3 Qa6 Bg3 Rdd8 Qe1 Rd4 Bc3 Rb3 Bb2 Rbd3 Rf5 Rdd8 Rff2 R3d4 Nc2 Qb5 Na1 Qa4 Ng1 Qb3 Ne2 Qa3
B3B1KR/qp1qb1P1/1q3rb1/1br1p3/4nR2/NprRQ1p1/P1n1kN2/B7 b - - 0 1 illegal: Other
1rn1qn1B/Bb2NQ1b/B1NpP3/p5p1/4N3/pn3r1k/K1nb1nP1/R4R2 b - - 0 1 illegal: Other
2r1n1n1/B1RBPkqr/n1b2N2/P1p3Nn/2R5/2p3p1/2p1NQbb/2K1nR2 b - - 0 1 illegal: No proof kernel
n2kQn1K/rpN3r1/1r3bB1/nNR1PB1B/1n1p2bp/2RP4/2q2p1n/7N b - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 h5 e5 h6 exf4 Rh3 c4 Bb2 c3 Na3 cxb2 Rh1 gxh6 Nb1 h5 Rh2 h4 Rh3 Qa5 Rh1 Qd8 Kf2 d5 Kf3 h5 c4 f5 g4 h3 a4 d4 e4 h2 c5 h4 a5 b3 g5 Na6 e5 Qc7 c6 Ne7 g6 Kd8 g7 Rg8 Ra3 Ra7 Nc3 b1R Nh3 b2 Bd3 Ng6 Qa4 Be7 Nb5 Nf8 Rc3 Bf6 Rhc1 h1N Nf2 Bd7 Be2 Qc8 Bd3 Nc7 a6 Na8 Rc5 Qc7 R1c3 Qc8 Nd1 Nf2 c7+ Ke7 Bc2 Nd3 Nf2 Nb4 Nh1 Ke8 Be4 Ke7 d3 Ke8 Kg2 f3+ Kh3 f4+ Bf5 f2 Kg4 f1N Kh5 f3 Kh6 f2 Bg6+ Ke7 Bh5 Bg4 Bg6 Qe8 c8B Nh2 Bcf5 Kd8 Bh5 Qe6 Bfg6 Qb3 Bf5 Nd7 Kh7 Qc2 Bfg6 Rc1 Bf5 b1N Bhg6 Rg1 Bh5 Re8 g8B Nd2 Bgf7 Nb3 B7g6 Re7+ Kg8 Rg7+ Kh8 Ra1 Qa2 Na5 Qe6 Nf8 Qg8 Nb6 Qe6 Rb1 Qg8 Ra8 a7 Na6 Na3 Rb4 Qe6 Rb5 Qf7 Nb4 Qe6 Rc8 a8N Rc6 Nc7 Na8 Qb3 Ra6 Qf7 Rbb6 Nab5 Ra7 Qe8#
R2nN3/1r5Q/pB1bpqrR/1P2P2K/7B/1NNb3p/p2bkr2/Rn2n1r1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 Ba6 gxh4 Bb7 f5 Be4 fxe4 Ke2 Kf7 c4 Kg6 g4 h5 b4 d5 f4 e6 g5 Kf5 c5 Kg4 g6 h3 f5 h4 f6 a3 c6 h2 f7 a2 c7 e3 g7 d3+ Kf1+ e2+ Kg2 h3+ Kf2 d4 Qa4 e1B+ Kf1 d2 Ke2 d1N Be3 d3+ Kf1 d2 Ke2 Qf6 Nc3 Rh6 Bc5 Rg6 Be7 Nc6 Qa3 Rb8 Bc5 Nb2 Nf3 d1R Bb6 Nd8 Nd4 Ne7 g8N Rb7 Nb3 Bd2 Rf1 h1R b5 a6 Rf3 Nd5 Qe7 Rhg1 Rf5 Rdf1 Rh5 Rf5 Rh6 Nd3 Qd7 Ba3 f8B Ne1 Qh7 Bd6 Be7 Bd7 c8R Be8 Ra8 Kf4 Ne4 Nc3+ Kf2 Nb1 Nc3 Bc6 Ke2 Be4 Kf2 Qf7 Nf6 Bd3 Ne8 Qg7 Bh4 Qf6 Nc7 R1g5 Ne8 Kg4+ Kg1 Kf3+ Kh2 Rg1 Nd5 Ke2 Nc3+ Kf1 Bg5 Rh1+ Kg3 Rg1+ Kh4 Rf4+ Kh5 Rf2 Nd1 Ke2 Bh4 Rfg2 Qe7 Rh2 Qh7 Rf2 Nc3+
n5b1/1n1B1Bp1/bnrPp1rk/1rN3P1/1rqpN1p1/b1R4Q/1B4K1/1R1R4 b - - 0 1 illegal: No possible last move
n5q1/1Kn1P3/2R5/2Np1p1B/BbP1pk1B/r5rR/p3bN1n/b1br2QN b - - 0 1 illegal: No proof kernel
2bQ1r2/P1bb2n1/1NBRp3/Kp2R1p1/B4P2/NRr1r3/n2q1bpn/B1k5 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 a4 Ke6 c4 Kf5 h4 Kf4 c5 b5 c6 d5 c7 g5 a5 g3 f3 e3+ Kd3 g2 a6 b3 h5 b2 a7 Na6 h6 Nf6 h7 Nh5 Rh2 Ng7 Kc2 d3+ Kb3 d4 Nc3 b1R+ Bb2 e2 Rh1 Ke3 f4 e1B Ra3 d2 Rh6 d3 Rh1 Bf2 Na4 Nb4 Be2 Rc1 Ba1 Na2 Nf3 e6 Ne1 Bd6 Nb6 Rc3+ Kb2 Bd7 c8B Bc7 Bb7 Rc8 Bc6 Rf8 Ra6 Ra3 h8R Rc3 Qb3 d1N+ Ka3 Kd2 Nc2 Kc1 Re1 d2 Rh3 Re3 Bc4 Bh4 Re2 Nf2 Qd3 d1B Bb3 Ng4 Ba4 Bf2 Re1 Nh2 Kb3 Rf3 Re5 Re3 Rg3 Bf3 Na3 Nc3 Kb4 Na2+ Ka5 Be4 Ba8 Bb7 Rf3 Bd6 Qd4 Rcc3 Rh3 Bbc8 Bc6 Bc7 Qd5 Re4 Rd3 Re3 Qd6 Rc5 Rb3 Rcc3 Qe7 Be8 Qf6 Qd2 Qd8 Bed7 Bb7 Bd6 Nd5 Bb8 Rd6 Bc7+ Nb6 Rh8 Bd5 Rf8 Bc6
5bk1/1q2bbR1/5pp1/1nN3BR/2pq1Qb1/1rnN1bPp/2N2rPK/3RB3 b - - 0 1 illegal: Other
3nq2R/2N2p1k/R2B1p2/1bqq1n2/Q6b/p2rp1r1/1P1N1RP1/qq1BB1K1 b - - 0 1 illegal: No proof kernel
r7/5q2/RR1kP3/1p1B3r/BNb3Q1/qPn2b1R/pNpn2pb/1B1nKn2 b - - 0 1 illegal: No proof kernel
n1N1N2r/2bn3B/p4n2/2N1PbqR/1rq1Q3/p1p2p2/kR1nPK2/B2rB3 b - - 0 1 illegal: Other
Br4bB/1B3r1P/K1N4r/1NRq4/4N1pp/6kp/p1nP1rbb/n1Q1q1R1 b - - 0 1 illegal: No proof kernel
3N4/rb4bp/2rpn3/2b1p1nK/BrQq2B1/PP1p1qB1/1kNb4/2NR3R b - - 0 1 illegal: No proof kernel
n1q1b3/2R1npK1/1B1P1R2/1R5k/NBb1p3/qpqQ2Nq/4rP1p/b1B4r b - - 0 1 illegal: No proof kernel
n3b1q1/1N3pB1/P1rB1r1p/1PN1k2p/1R1q1br1/2N1qR2/4p3/qB2n1QK b - - 0 1 illegal: No proof kernel
4bqr1/R3pk2/NbpBP1np/5Bnr/Bbn5/4R3/p3NQ1P/K1n2qR1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 g5 b4 gxf4 a5 b6 Ra2 bxa5 Ra4 axb4 Ra1 b3 e4 f5 d4 a5 Kd2 c3+ Kd3 c6 g4 f3 e5 b2 Kc2 f4 d5 f2 d6 a4 d7+ Kf7 g5 a3 Bd3 f1N Kb3 f3 Ka2 f2 Ne2 c2 Ng3 Nd2 Bf5 f1Q Nh5 Bh6 Bg4 Qf8 d8R Nf6 Nc3 b1N Na4 Nfe4 Ng3 Nd7 Nc5 Nc4 Rg1 Nbd2 Qe1 Nb3 Bf5 Rb8 Bb2 c1B Na6 Be3 Ne2 Bb6 Qf2 Nc1+ Kb1 Rg8 Bc3 Rh8 Bb4 Rg8 Ra2 Ra8 Bd6 Rb8 Rd2 a2+ Ka1 Rh8 Rd1 Ra8 Re1 Rg8 Nc7 Ra3 Na6 Rh3 Re8 Rh5 g6+ Kg7 Rg4 Bd2 Rg1 h6 Rd8 Bb4 Re8 Bb7 Ra8 Ng5 Ra7 Bc8 Qf4 Qf6 Qf2 Kf8 g7+ Kf7 Nc3 Nf8 Re3 Ng6 Ne2 Rd8 Rc3 Bd7 Re3 Be8 g8B+ Kg7 Bd5 Qf8 Bde4 Kf7 Bc2 Rc8 Ba4 Qg8 Ra8 Bd7 Rgg3 Rf8 Ra7 Be8 Rg4 Qg7 Rgg3 Rg8 Rg1 Qf8 e6+
1n2k1N1/b1Kp1p2/P2rBNpp/1RR5/3n1N2/rqq2QPn/BqR4q/7b b - - 0 1 illegal: No proof kernel
N1q1R3/1kpqpP1p/B1r2QP1/nq4Bn/nb6/3N1r2/1R1NKpn1/6Rb b - - 0 1 illegal: No possible last move
bBN2N2/Rp3Q2/rnq1BK2/6p1/1p1PRB1P/3np3/1brr1bk1/2bR2q1 b - - 0 1 illegal: Other
b1BR1KbR/p4p1r/1q2p1P1/2rn1P2/1bQ1k2r/q3N2N/2Nn1p1R/1B2b3 b - - 0 1 illegal: No proof kernel
1RK1b3/4b3/pB4r1/nP1p2n1/1R1N3r/n1P1B3/pp2qbkQ/2NBb1nN b - - 0 1 illegal: No proof kernel
b1B5/pR6/n1Bpr1NK/3N3N/1PR2B2/P1p1nq1b/kn3p2/bbnr2Q1 b - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 c4 gxh4 c5 b6 Be3 bxc5 Bd2 cxd4 Bc1 d3 Kd2 Ke7 g4 Ke6 b4 Kd5 e4+ Kc4 g5 f5 a3 c5 g6 h5 g7 h3 e5 f3 Ke3 h4 Kf4 h2 e6 h3 e7 d6 Kg5 f2 Be3 f4 Ra2 f3 Be2 f1B Qa4 f2 Ra1 Nf6 g8N Bg7 e8B Na6 Bc1 Ng4+ Nf6 Ne3 Kg6 Bf5+ Kg5 Bh7 Bg6 Qf8 Qd1 Re8 Bg4 d2 Bc8 Re6 Qe1 Kb3 Qe2 d1N Qh5 c4 Ra2 Nb2 Nc3 Rg8 Be8 Bb1 Bc6 Bg2 Ng4 Qf3 Nge2 Rh8 Re1 h1N Nf6 h2 Qg4 Ng3 Ncd5 h1B Nef4 Bh3 Ng6 Ne2 Nh5 Be5 Bd2 Nc1 Qg1 Rg8 Kh6 Bf6 Ngf4 Rg4 Ng6 Rd4 Bc3 Rd1 Bd2 Na4 Rc2 Ba1 Rc3+ Ka2 Re2 Nb2 Re1 Nf1 Bf4 B1g2 Re5 Ne3 Rf5 Bh1 Rf7 B1g2 Rd3 c3 Rd4 Bf1 Re4 Bb5 Rc4 Ba4 B6d7 Bc6 Rh7 Bb7 Bc6 Ba8 Rb7
b7/pBkBppr1/B2n4/r2RNP2/2NQRP2/p1Kn2qr/b1b5/1R3rb1 b - - 0 1 illegal: Other
1rRrNK2/1Npr4/1n2Bp2/Nk2R1nb/1Pn2B2/2q1p1p1/1bP1B2p/b2Q4 b - - 0 1 illegal: No proof kernel
n1B4b/2rRQn1N/rpRp2pP/k2p1p2/2n2K2/3NP2q/N2q4/BR3b1r b - - 0 1 legal: proof: f4 a5 g4 e5 d4 exf4 b4 axb4 d5 h5 d6 hxg4 Na3 cxd6 Nb1 d5 Kd2 f5 h4 g6 c4 g3 a4 b6 a5 g2 a6 b3 a7 b2 h5 d6 c5 Kd7 Nf3 Kc6 Nc3 g1R Ne1 f3 Ke3 b1N Na2 Kb5 c6 f2 c7 Ka5 Nd3 Nd2 Kf4 Ba6 c8R Bg7 Rc6 Rh7 Bb2 Nh6 Rb1 Nc4 Ba1 Nf7 Qe1+ Bc3 Rh3 Rh1 h6 Bb5 Re3 Na6 Re7 Nc7 Rd7 Qc8 e3 Qh8 Be2 f1Q+ Qf2 Qg2 Qh4 Qh3 Qe7 Bb2 Bf1 Qc3 Be2 Qd2 Bf1 Rb8 a8N Bh8 Be2 Rb7 Bf1 Ra7 Be2 Ne8 Nc7 Ra6 Ne6 Nc7 Ng5 Rg7 Nh7 Na8 Bb2 Rg8 Ba1 Rc8 Bd1 Rc7 Ba4 Na3 Ndb4 Be2 Nd3 Nc4 Bb5 Raa7 Ba6 Bf1 Bb7 Ra6 Bc8
3KnBR1/q5P1/2p1bpkr/2p5/1PNb4/1bBp1brp/NQ2BRn1/4R1n1 b - - 0 1 illegal: No proof kernel
1nNb2Q1/b1pnp3/r2p3P/1nNK1kb1/1B1pN1B1/5Pq1/R1B2p2/1b1r2R1 b - - 0 1 illegal: Other
KbR2BB1/1pRB1NbN/b2np2p/Pk6/r6p/1P2q2n/1br2p2/Rr4Q1 b - - 0 1 illegal: No proof kernel
5B1K/q2N1P2/Np4p1/1Rp4p/1nP1N1R1/pnQ1R1r1/1bB2rb1/k2n1n1q b - - 0 1 illegal: No proof kernel
5r1R/1pNpn1Qb/Pq1R1p2/6R1/p4bNn/B2rB3/PpN1pn1k/1K1n4 b - - 0 1 illegal: Other
4N3/PP2kbpK/r2Bb3/1R1ppp2/R2N4/2bnQ1p1/qp2Nb2/3B1nrR b - - 0 1 illegal: No proof kernel
2Qr1b2/1rR5/2PN3b/4kbp1/P1N2q2/2B2BNb/2Q4q/nbb1K2R b - - 0 1 illegal: No possible last move
bbb1RK2/nN1p3Q/R4N2/1PB4Q/1rpP4/2p2Qp1/1k2pB1p/7b b - - 0 1 legal: proof: b4 b5 c4 bxc4 a4 f5 e4 fxe4 d4 a5 Bd3 c6 Ke2 Qb6 Ke1 Qb5 axb5 axb4 Ra2 c3 Ra3 Ra6 Ra1 Ra8 h4 exd3 g4 g5 f4 Ra2 f5 Rf2 Qc2 Na6 Qd1 Nc7 f6 Rf5 gxf5 g4 Bg5 Ne6 Bc1 Ng5 hxg5 Ba6 Rh5 Bb7 Rh1 Bc8 Kf2 Kf7 Kg3 e5 Kh4 h5 Ra7 b3 Qe1 e4 Na3 e3 Ne2 b2 Qd1 b1B Ra6 g3 Nf4 d2 Nc4 c5 Re1 Ne7 Na5 Be4 Nb7 Bh1 Nd5 Nc6 Qe2 d1B g6+ Kg8 Kg5 h4 g7 Kf7 Qg4 h3 Qh4 Rg8 Kh6 h2 Bd2 c4 Re2 Bc2 Be1 Bd6 Bf2 Bce4 Qg4 Na7 Kh7 Rf8 g8Q+ Ke8 Kg7 Bb8 Qh7 Rh8 Nc5 Kd8 f7 Re8 Nf6 Kc7 f8B Ba8 Nb7 Re5 Ra1 Kb6 Qgh5 Re8 Bd6 Re4 Kf8 Rf4 Bg1 Rf1 Bf2 Rb1 Bc5+ Kc7 Rea2 e2 Ra6 Rb4 Re6 Bf3 Re8 Bh1 Ng8 Nc6 f6 Na7 Be7 Kb6 f7 Rb3 Nf6 Rb1 Ba3 Rb4 Nd8 Ka5 Nb7+ Ka4 Ra2 Rb2 Bc5+ Kb3 Ra6 Rb1 Kg8 Kb2 f8Q Kc1 Qff7 Rb4 Kf8 Kb2 Qfd5 Bf4 Qg2 Bb8 Qgf3
N4q1Q/4BB1n/2RKn2b/2pP1kBq/5nr1/2b1pb2/1Pb1R1r1/2N2Q2 b - - 0 1 legal: proof: e4 d5 exd5 a5 h4 g5 c4 gxh4 a4 b5 c5 bxa4 Qf3 f5 Qe4 fxe4 c6 Nxc6 Rxa4 Nb8 Ra1 a4 Ke2 Kd7 Ke3 e5 g4 h5 f4 c5 d4 a3 d6 Ke6 g5 h3 d7 h2 d5+ Kf5 g6 a2 g7 h4 Bg2 h3 Bf1 Na6 Bd3 Nc7 Bb5 Ra4 Ne2 Ne6 Bc6 Nf6 g8Q Bh6 Na3 Nh7 Re1 h1B Nb5 h2 Qg1 Rg8 Nc7 Bf3 Na8 h1Q Qf1 Qf8 d8B Qh5 Be8 Rg2 Bf7 Ba6 Bh4 Bd3 Be7 Bc2 Bd2 Rb4 Nc1 Ra4 Re2 Rc4 Nb3 Rd4 Rae1 a1N Nc1 Ra4 Ba5 Rd4 Bad8 Nb3 Bg5 Rb4 Bdf6 Nbd4 Be7 Kg4 f5 Nf4 f6 Nde6 Bg8 Kf5 f7 Qg7 f8Q+ Qf6 Qg7 Qf8 Qh8 Ra4 Kd2 e3+ Kc3 e4 Bf7 Ra3+ Kc4 Ra4+ Kb5 Rc4 Rf2 e2 Kc6 e3 Kd6 Ra4 Rd1 e1B Re2 Bb4 Rd3 Ba5 Ra3 Bc3 Rb3 Nd3 Rb6 Rag4 Ra6 Ndf4 Rc6
2Q4k/2B4P/p2rn2r/KR1nPB1b/RN2bNR1/1r3p2/2q4p/r2Q1q2 b - - 0 1 legal: proof: f4 b5 c4 e5 cxb5 exf4 a4 c5 d4 c4 a5 Qxa5+ Nd2 c3 d5 Qd8 d6 Bxd6 Nb1 Bf8 h4 g5 g3 gxh4 Qa4 h3 Qd1 h2 Be3 h5 Ra4 h4 Bc1 h3 Ra2 Be7 Ra1 Bh4 gxh4 Qg5 Na3 Qe7 Nb1 Qd8 b4 Kf8 e4 Kg7 h5 f5 e5 d5 b6 a6 b7 c2 Kd2 d4 b5 d3 Kc3 d2 Kb4 f3 b6 f4 Ne2 f2 Ka5 Nd7 b8Q Nc5 Nbc3 Ne6 Ra3 Ne7 Ra4 Nd5 Ba3 c1R Ng1 Rh6 Nge2 Ra1 Bd6 Kh8 Na2 Qc7 Rg1 h1B Rg4 h2 Nb4 Qc2 b7 Be4 Bh3 f1Q Bc7 f3 Nf4 Ra7 Rg3 Ra8 Bf5 Ra7 Rg4 Ra8 Qa7 Rb8 Qc5 Bd7 Qc6 Be8 Qd7 Bg6 Qc8+ Be8 Qb1 d1R Qb3 Ra8 b8R Rd4 Rb7 Rb8 Rb5 Rb6 Qd3 Rd6 Qd1 Rd3 Bh7 Rb3 Bf5 Rg6 h6 Rf6 h7 Rh6 Qb7 Bh5 Qc8+
br2Qr2/R1N1N1Bb/1Qn1pp2/P1k5/2Pr2bb/2B3p1/4N2q/1RK4b b - - 0 1 legal: proof: d4 c5 e4 cxd4 g4 h5 gxh5 a5 b4 axb4 f4 d3 f5 Nc6 Ba3 e6 Be2 Ke7 f6+ Kd6 Bc1 Nce7 e5+ Kxe5 fxe7 Kd5 Bf3+ Kd6 Bc6 Kxc6 Kd2 g5 e8Q b5 c4 g4 a4 b3 h4 b2 a5 g3 h6 b4 h7 b3 h5 Kc5 h6 d5 Nh3 d4 Ra4 Rb8 Qf1 Qh4 Ng5 Qh2+ Qg2 Be7 Nc3 b1B Ra1 b2 Qf2 Bb7 Nf3 Ba8 Ng1 Bh4 Nb5 f6 Nc7 Ne7 Ne2 Rf8 h8N Nc6 h7 Bc2 Ng6 b1B h8B Bd1 Nef4 Bf3 Bg7 Bg2 Rd1 Bh1 Bb2 Bc2 Bc3 Bb1 Ke1 d2+ Ke2 Bf5 Ne7 Bh7 Rdb1 d1R Rb7 Rd3 Ra7 Rd1 Rc1 Rd3 Rb1 Rd1 Qg2 d3+ Ke3 d2 Qg1 Re1+ Ne2 d1B Qf2 Rf1 Qg1 Rf4 Kd2+ Rd4+ Kc1 Rb5 Nf4 Bg4 Ne2 Rb8 Qg2 Ne5 Qb7 Nc6 Qb6+
1r2R1Nr/1br1QB2/p6r/3q3Q/q3r3/1r4NP/P3pp1K/Rkn2NB1 b - - 0 1 illegal: No possible last move
1qbN1Rkn/p1n1Bb2/q1Bn4/1p1Q2P1/4R2n/PnK1bpN1/3R4/4Q3 b - - 0 1 legal: proof: f4 d5 b4 c5 g4 cxb4 c4 dxc4 f5 e6 Bh3 exf5 Bg2 fxg4 Bf1 g3 h4 b5 Qc2 g5 Qd3 g4 Qb3 Na6 Qc2 Rb8 Qd1 Rb6 Rh3 Rg6 Rh1 Rg5 hxg5 Qe7 Qc2 Qc7 Qd1 Qd8 e4 f5 d4 Kf7 Kd2 h5 d5 h4 a3 b3 e5 g2 d6 c3+ Kd3 g3 d7 f4 Qe1 h3 Nd2 b2 Rb1 c2 Qe2 h2 Kd4 Ne7 e6+ Kg8 Qc4 Ng6 Kc3 Bc5 Qe2 Be3 e7 Nc7 Ra1 b1B Nc4 Ba2 Bb2 c1N Qe1 Nb3 Ne2 g1N Nd6 g2 Ng3 Nf3 Nf7 g1Q Bg2 Nfh4 Bc6 f3 Rd1 Qf2 Rg1 h1N Rd2 Qh2 Ba1 Nf2 Bb2 Qe8 d8Q Qh3 Rh1 Qe6 Qd5 Qf8 e8R Ne4+ Kc2 Nd6 Kc3 Rh7 Rh3 Nh8 Nd8 Rf7 Rhh2 Qh6 Re4 Qe8 Rhe2 Qf6+ Kb4 Qfe6 Bf6 Rf8 Be7 Bd7 Nb7 Qb8 Kc3 Bc8 Nd8 Bb1 Rg4 Bg6 Re4 Bf7 Bf6 Qg4 Re8 Qa4 Be7 Bf4 Re6 Be3 Re4 Qa6 Rxf8+
1b1Qn3/2pPQ3/Nbk5/b7/2KnpR2/1P2QrRb/2N1pp2/2BB2rb b - - 0 1 legal: proof: Nf3 b5 Ng1 d5 Nf3 b4 Ng1 b3 axb3 Bd7 Nh3 Be6 Ng1 Bc8 c4 dxc4 e4 f5 Nf3 fxe4 Ng1 g5 f4 gxf4 h4 a5 h5 a4 h6 a3 Be2 a2 Nc3 Qd6 Nb1 Ra6 Bf1 Qa3 bxa3 Rxh6 Kf2 Rh5 Ke1 Rh2 Ke2 Kd7 d4 e5 d5 h5 a4 e3 d6 h4 a5 h3 a6 c3 Kd3 c2 g4 e4+ Kc4 f3 a7 f2 a8Q Rh6 g5 Rf6 g6 Rf3 g7 Nf6 g8Q Ne8 Qg5 Nc6 Be2 Rg2 Qd3 h2 Nh3 Nd4 Nf4 Rg1 Bd1 e2 Nd5 Bh6 Qb8 Kc6 Qde3 Bh3 d7 Bf8 Qe5 Bb4 Qd8 Ba5 Na3 Bb6 Rb1 a1B Qee7 Bc3 Ra1 Bca5 Nb4+ Kb7 Na6 Kc6 Rb1 Ba7 Ra1 Bb8 Rb1 Rg8 Rg1 h1B Rg4 Bb6 Rf4 Rg1 Bd2 c1B Nc2 Ba3 Bc1 Bb4 Ra1 Bc3 Ra5 Bb4 Rg5 B4a5 Rg3
r1N3Rr/6r1/2B2b2/2Q1knrQ/R1Br2Pn/b5nK/3q1qPQ/q5bN b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Ba6 fxe6 Be2 e5 Bf1 e4 f4 b6 h3 Ba6 f5 Be2 Bf4 Bg4 hxg4 gxf4 Kf2 Kf7 c4 Kf6 a4 h5 c5 d5 a5 e5 c6 h4 c7 b3 c8B d3 a6 h3 a7 h2 Qd2 f3 Kg3 b5 Nh3 b2 Qf4 b4 Bb7 d2 Rg1 d1Q Bb5 h1N+ Kh2 f2 Qe3 f1Q B5a6 b3 Qf4 d4 Qf3 d3 Nd2 b1R Bc6 e3 Qf2 e4 Be8 e2 Bf7 e1B Nc4 d2 Na5 b2 Nc4 e3 Nd6 e2 Qg3 Nh6 Nc4 Bf2 Na3 e1B Bg6 Nd7 Be8 Ne5 Bc4 Ng6 Bc6 Nh4 Nb5 Ba3 Nd6 Qfe2 Qf4 Ng3 Rh1 Qc1 Ra2 d1R Nc8 Bc3 Qc7 Bfc5 Nf2 Qdd2 Kh3 B5d4 Qh7 Ke5 f6 N6f5 f7 Ra1 f8Q b1R Qfh6 Rb7 Qh5 Rg7 Rf1 Rb1 Nh1 Rb5 Rf3 Ba1 Rd3 Bg1 Rd8 B1b2 Rg8 Qa1 Q7h6 Qf2 Qh7 Be7 Ra4 Bf6 Q7h6 Ba3 Qh7 Rab8 a8Q Rd5 Qb7 Ra8 Qb6 Rd4 Q7h6 Rb1 Qa7 Rb5 Qc5+ Rd5 Q6g5 Ke4 Ra6 Nd4 Ba2 Nf1 Qd6 Rb4 Qh2 Ng3 Ba4 Ra5 Qd5+ Kf4 Qc6 Rag5 Qc5 Ndf5 Bc6 Rd4 Bad5 Ke5 Ra4 Rd3 Bc4+ Rd5 Qa7 Rd4 Qc5+
k2b2R1/1n1r1r1q/1N3qb1/qBN1rQ1q/4r2B/2r1qP2/PQ4K1/B3R2n b - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 h4 g5 b4 axb4 Bd2 gxh4 Bc1 d5 cxd5 c5 Qc2 cxd4 Qa4+ Kf7 Qd1 Ke8 g4 Kd7 f3 Kc7 Kf2 b5 g5 Kb7 d6 e5 d7 h5 g6 b3 g7 b2 Bf4 b4 Qe1 e3+ Kg2 e2 Be3 e4 Bf4 d3 Na3 b1Q Kf2 h3 Bd6 h4 Nc2 d2 Qc1 d1R Be7 e1R Na3 b3 Qd2 h2 Nc2 e3+ Kg2 b2 Bd3 e2 Kf2 h3 Bh4 Ra5 Ne3 Be7 Qb4+ Ka8 Qd2 Qc1 Bg6 b1Q Qd5+ Nc6 Qb3 Nh6 g8Q Re5 Bc2 Ng4+ Kg3 Rh7 Bf5 Na5 Qb4 Nf2 Ng2 Rf7 Qgg4 Qe3 Nf4 Nb7 Nd5 Rd3 Bf6 Rc3 Qb2 Rd1 Qf4 e1R Bd3 Qa5 d8B Bf5 Bb5 Bg6 Ne2 Qf5 Rg1 h1Q Nc1 h2 Nb3 Rdd3 Bh4 Qf6 Nc5 Rd2 Bc7 Bd8 Qf5 Rd4 Rc1 Red1 Bd6 Rde4 Bf8 Rdd3 Bg7 Rd2 Rg2 Rdd4 Ra1 Qb1 Rg1 Nh1+ Kg2 Qbd3 Rae1 Qb1 Ne7 Rd7 Nc8 Qbd3 Bh8 Qd5 Na4 Qdc5 Bg7 Qce7 Nc5 Qe8 Bh8 Qg8 Bg7 Qh7 Nb6+ Ka7 Qb1 Rc1 Ref1 Qe7 Bf8 Nf2 Nc4 h1Q+ Kg3 Bh5 Bg7 Re6 Bg5 Ka8 Ba1 Qf6 Qb2 R6e5 Re1 Rc3 Rg2 Bg6 Rgg1 Q1h5 Bh4 Nh1+ Kh2 Q7h6 Kh3 Bh7 Rg8 Bg6 Kg2 Qh7 Nb6+
2R2bnK/qr1b4/5P2/6Q1/3qN1R1/Pqr1BqNN/Bk1qn2Q/bbn5 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 h4 g5 b4 axb4 Bd2 gxh4 Bc1 d5 cxd5 c5 Qc2 cxd4 Qa4+ Kf7 Qd1 Ke8 Ke2 Kd7 f4 Kd6 g4 Kc5 f5 Kc4 d6 e5 g5 h5 d7 b5 a3 h3 g6 d3+ Ke3 b3 f6 b2 g7 b4 Ra2 h4 Ra1 h2 Nd2+ Kc3 Bh3 b1Q Nc4 d2 Qa4 d1Q Ra2 b3 Rd2 b2 Rf2 Rh7 Nd6 Ne7 g8N Nbc6 Rg2 Nd4 Be6 h3 Nh6 Ng8 Kf2 e3+ Kg3 e2 Kg4 e1N+ Kg5 e4 Kg6 e3+ Bf5 e2 Qa7 Nd3 Rf2 e1B Bf4 Nc1 Qb7 Ra6 Qd5 Rc6 Qc5+ Kb3 Qe5 Bc3 Rc2 Qd2 Be6+ Rc4 Nhf5 Nde2 Qe3 Qb6 d8Q Qa7 Bd5 Rb7 Qc7 Bd7 Kh7 Qa2 Qg3 b1B Qg5 Ba1 Ne4 Qb2 Be6 Qa2 Rc3+ Kb2 Kh8 Rc6 Rc5 Qc4 Qd6 Qcc2 Ba2 Qb3 Nf3 Rcc7 Rg1 Rc8 Rg4 Rcc7 N5d4 h1Q Nf5 h2 Ng1 Qhf3 Nh3 Qfd3 Rc6 h1Q Be3 Qf3 Qh2 Qdd4 Nfg3 Rc8 Rb6 Rc4 Rc6 Rc3 Rc8
q3BKN1/bk2n1R1/r1PnqN1q/2B1Q1P1/q7/b1Q2Bn1/7r/b2R1q1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 Kd3 d5 c4 Kd7 e4 Kc7 b4 a5 g4 f5 c5 a3 b5 f3 e5 f4 e6 h3 e7 a2 e8Q h4 c6 f2 g5 f3 Nd2 a4 Qe6 a3 Qf5 h2 Rb1 a1B Qc2 h3 Qc4 a2 Qc2 Nd7 Ne4 Nb6 Qf7+ Ne7 Ng3 Ra6 Qd1 Bb7 Rb3 Nc4 Qg7 Nd6 N1e2 Qa8 Bg2 f1Q Be3 f2 Qe5 Rh7 Rg1 h1Q Rc3 h2 Qd2 Qc1 Rc2 f1Q Nh5 Qf5+ Be4 Qe6 Qc3 Bb2 Rf1 a1B Bf3 Ba3 Nf6 Bc5 Ng8 Ba7 Nf4 Rh3 Ke2 d3+ Kf2 d2 Bc5 d1Q Nh5 d4 Nhf6 Rh8 Kg3 d3 Rg1 d2 Kf4 Qe2 Rd1 Qef1 Ra2 Kc8 c7 Bc6 Ra4 Kb7 Re4 Qc2 Ree1 Qh7 Re2 Qh6 c8B+ Kb8 Bd7 Kb7 Ree1 Qhg2 Re4 h1N Be8 Ng3 Re2 Qgh1 Rh2 Qg6 Rh7 Qgh6 Rg7 Be4 Rc1 d1Q Rb1 Qa4 Rd1 Qd7 Qf5 Qh1h3 Ke5 Qc6 Ke6 Qg4 Be2 Bh1 Bf3 Qge4+ Qfe5 Qhg6 Rd2 Rh2 Rd1 Qh6 Bd4 Ndf5+ Kf7 Nd5 Qe6 Ba3 Bc5 Nde7 Kf8 Nd6 Qd5 Qg4 Qde5 Qe6 bxc6+
1N2Br1n/r1RrPb2/1RrnnqRQ/n1n5/2n3P1/2B1Qk2/8/N1K2nr1 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bb2 f4 Ba3 Ra4 Bc1 Ra8 Nh3 fxg3 Ng1 g5 Nf3 g2 Ba3 g1N Bb2 Ne7 Bc1 Ng8 Nfd2 g4 Ba3 g3 Nf3 g2 Bb2 Bd6 Bc1 Bg3+ hxg3 Qg5 Nc3 Qf6 Nb1 Qd8 Kd2 Ke7 c4 Kd6 a4 h5 e4 b5 g4 f5 a5 f4 a6 h4 a7 b3 Ra2 b2 Na3 b1R Nc2 d3 Nfe1 Ke5 c5 d5 c6 h3 c7 b4 Ra5 f3 Ne3 Kf4 e5 b3 e6 h2 Ba3 b2 Be7 d4 Rg5 f2 Bb4 Nh3 Ba5 g1R Bg2 Rc1 Bb6 Ne7 Rg8 Nd7 Qb3 Ng5 Bf3 Ng6 Nc4 Nc5 Be4 Qf6 e7 Nge6 Rd8 Rf8 Re8 Nh8 Qd1 b1R Nc2 f1N+ Ke1 d2+ Ke2 Kg3 Ba5 Rb7 Na1 Bd7 Rb8 Be8 c8Q Bf7 Qc6 Rd7 Ne5 Rc3 Qc2 d1N Bg6 Nde3 Q2e4 Nc4 Kd1 d3 Rb6 d2 Qe2 Rc2 Bc3 Na5 Qee4 Kf2 Qd6 Kg3 Qe3+ Kg2 Nc6 Rc1+ Ke2 d1N Nb8 Nb2 Qdf4 Nbc4 Qh6 Rcd1 Bh5 R1d6 Bg6 Rc6 Ke1 Nd6 Kd1 Nd2+ Kc2 N2c4 Bh5 Rb1 Rc1 h1N Kd1 Ng3 Bg6 Bg8 Be8 Nf1 Kc2 Rb2+ Kd1 Re2 Rc2 Bf7 Kc1 Rd2 Rcb2 Re2 Rb7 Rf2 R2b6 Rf5 Rc7 Rh5 Qd3 Rh1 Qde3 Rg1 Na6 Rb8 a8R Rb7 Nb8 Ra7 Rb5 Rb7 Ra6 Ra7 Rab6 Nce4 Rg5 N4c5 Qe1 Kf3 Rg6 Qg7 Qe5 Qf6 Qee3+
k2rQ3/2q5/K1nbB1n1/4b2R/P1nN4/qRq3qB/nQbBP2N/b1b5 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 h4 exf4 g3 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Na3 g4 Nb1 Rg5 hxg5 fxg3 a4 Kd7 d4 Kc6 Kd2 Kb7 g6 c5 g7 f5 d5 h5 d6 c3+ Kd3 g2 d7 h4 Be3 b3 Bg5 b2 Na3 b1Q+ Qc2 b4 Kc4 b3 Kb5 f4 Qe4+ Nc6 Ra2 f3 Qe6 g3 Nc2 h3 Qe4 c4 Qh7 h2 Ne1 b2 Be3 c2 Ra1 c1B Bc5 c3 Ra3 c2 Rb3 f2 Bb6 Qa2 Qh6 b1Q Nef3 Qba1 Nh4 Qa3 Rb4 Bd6 Rc4 Nge7 g8B Q1c3 Qe3 Ka8 Bf7 Qc7 d8Q Ng6 Qd7 Rd8 Qg4 Bf5 Ngf3 g1B Bh3 f1N Bc5 g2 Bd5 Nd2 Qe8 Bd4 Rb4 g1B Be6 B4e5 Ka6 Bgd4 Rb3 Nc4 Bb4 Be4 Nf5 Bd3 Rg1 h1Q Nh2 Qg2 Rh1 Qg3 Qh4 Bh6 Qf4 c1N Qd2 Na2 Qb2 Bc2 Ba5 Bc1 Bb4 Qcf3 Bd2 Bc3 Nd4 Qf6 Qb1 Ba1 Qb2 Qff3 Rf1 Qe3 Rf5 Qc3 Rh5
R1NQ4/3K4/PB4qb/1BRb1npP/2r3b1/bB1N1rbr/k4n1Q/4qq2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Qc2 exf6 Qb2 f5 Qa3 f4 Qg3 fxg3 e4 Ke7 Ke2 Kd6 Kd3 Kc5 h4 f5 a4 g5 a5 b5 e5 f4 Ke4 b3 d4+ Kb4 a6 c5 d6 c4 Kd5 b2 e6 Kb3 e7 f3 e8B c3 d7 b4 Ke6 f2 d5 c2 d6 Qb6 Bg6 Nc6 Bd2 c1R Rh3 Bh6 Ra4 Nce7 Bfd3 f1Q Bde4 Nf6 Bb7 Nf5 Ne2 g1B Bc6 Ne4 Ra5 Bc5 Na3 b1B Nf4 Ba2 Be3 g2 Bb5 g1B Bf7 Bf2 Nd3 Bg3 Nc4 Nf2 Bg8 Qc6 Nb6 Rc4 Bf7 Rb8 h5 Rf8 Rh4 Rb7 Re4 Rc7 Re5 Qe4 Bd4 Qee1 Be3 Rh4 Re4 Rh3 Rd4 Bb7 d8Q Bf3 d7 Bg4 Qb8 Bcd6 d8Q Rc4 Kd7 Be7 Nc5+ Kb2 Re4 b3 Nc8 Kb1 Nd3 b2 Be6 Ba3 Bb6 Bb3 Bg8 Ka2 Re8 b1Q Qd6 Rb4 Q6c7 Bd5 Qf4 Rc4 Qb8 Bh4 Qh2 Bg3 Nd6 Rd4 Ne5 Bc4 Qc8 Ne7+ Be6 Rd5 Ba4 Qh7 Rc5 Qg6 Nd3 Rf3 Bb5 Rd4 Qc7 Bb3 Ra8 Nf5 Qd8 Rb4 Nc8 Bc4 Ba4 Bb3 Bd5 Bc4 Bdc6 Bd5 Bcb5 Rc4 Bb3+
2q2q2/RB2p2n/b1r1q3/Kb5N/3qk1q1/Pr1RnrP1/2Q2N1B/b5QR b - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 h4 g5 b4 axb4 Bd2 gxh4 Bc1 d5 cxd5 c5 Qc2 cxd4 Qa4+ Kf7 Qd1 Ke8 Kd2 Kd7 f4 Kd6 g3 b5 a3 h5 f5 Ke5 d6 d3 f6 e3+ Ke1 h3 f7 e2 Kd2 h2 d7 b3 Kc3 e1Q+ Nd2 h4 Kb4 b2 Qf3 b1Q+ Kc3 b4+ Kc4 b3 Kb4 b2 Qc6 h3 Ne2 Na6+ Ka4 Qc2+ Kb5 b1R+ Nb3 d2 Bg2 d1Q Qc4 Nc7+ Kb6 Ba6 Bh6 Rc8 Rf1 h1B Be3 h2 Rf6 Nd5+ Ka7 Rc6 Nd2 Bg7 f8Q Rb3 Nf4 Qg4 Bg1 Ne3 Ne4 Qee2 Rh6 Nf6 Nf2 Nh7 Nh5 Rg8 Qff7 Qf8 d8R Qed3 Bd5 Qdd4+ Qc5 Be4 Qg6 h1Q Bh2 Qe1 Rc1 Qee2 Rh1 Bed3 Ra8 Bdb5 Qd3 Qdf4 Rd6 Qd4 Qd2 Qcf5 Qc2 Q5c8 Rd7 Qe6 Rd8 Q2g4 Rd6 Rc7+ Kb6 Rc6+ Ka5 Bh8 Qb6 Rg7 Qbc5 Rf7 Ra7 Rf3 Qb6 Rc5 Bb7 Rc6 Nd3+ Ke4 Qbc5 Qdc4 Qb6 Ba1 Nf2+ Ke5 Rd3 Qcf4 Qd8 Qd4 Qd6+ Kf5 Qb4 Ke5 Qe1 Kd5 Qg1 Ke5 Nd1 Ke4 Nf2+
1r2nn2/Q2p1b2/1b2k1q1/P3BBq1/1NN2R2/Knn1bR1r/nP4qR/5Q2 b - - 0 1 legal: proof: f4 c5 h4 e5 c4 exf4 d4 cxd4 h5 b5 h6 bxc4 Qa4 gxh6 Qa3 h5 Qxa7 h4 Kd1 Ke7 Kc2 h5 g4 f5 a4 h3 e4 h2 e5 h4 g5 c3 Kb3 h3 g6 d3 a5 d2 e6 d1N g7 c2 Ra2 f3 Ba6 f2 Bb5 f1Q Ra1 f4 Ra4 f3 Qc7 f2 Ra1 Qg2 Qf4 f1N Ra3 Nf6 g8R Bb7 Qe3 Nh7 Bd2 c1B Ba6 Bd5+ Kb4 Qg6 Nc3 Nc6+ Ka4 Rb8 Ra1 Nb4 Rb1 Na2 Qa7 Kf6 e7 Ke6 Bh6 Nd2 Ka3 Nb3 Bg7 Be3 Nf3 Bc4 Nd5 Ndc3 Rhf1 h1Q Nb4 h2 Be5 Qhg2 Nd2 h1N Rf4 Ng3 Rh1 Nh5 Rh2 Ng7 e8Q+ Be7 Bb7 Nf8 Be4 Rh3 Bd3 Qc8 Qd8 Qc5 Qdc7 Bd5 Nc4 Bd8 Bb1 Ne8 Bf5+ Ke7 Qa6 Bf7 Qca7 Bb6 Rf3 Qd5 Rh8 Qdd2 Rh4 Q2g5 Rhf4 Qdg2 Nd2 Qd6 Qf1 Qdg6 Bc2 Ke6 Nc4 Nd1 Bb1 Ndc3 Bf5+
7B/4N2n/pq3Nn1/1k6/3QR1bb/1r1q1rq1/KBP1PQ2/brBR2qn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 f5 h4 d5 b4 Kd7 b6 Kc6 b7 g5 h5 f4 h6 a6 h7 d3 Kc3 d2 Kb2 d4 Kb3 f3 Rh5 f2 Rh6+ Kb5 Ba3 f1R Rh2 d3 Rh6 g4 Re6 Qb6 Nf3 g1B Re3 g2 Re6 g3 Re3 Nf6 Ng5 Rf3 Ne4 Nc6 b8Q Ne5 Qe1 d1Q Kb2 d2 Rb3 Be7 Qa7 Ng6 Ka2 Rb8 Bc1 Bd4 Qf2 g1Q Re3 g2 Bb2 Rf8 h8B Nh7 Nf6 Bg4 Re4 Rb3 Bc1 Qh2 Bb2 g1Q Nc3+ Kc6 Bc1 Qhg3 Ncd5 Kb5 Rb1 Bd8 Ne7 Ba1 Bb2 Qc6 Qad4 Qb6 Nd7 Rff3 Nf6 Qde1 Rc1 d1N Rb1 Qc3 Rc1 Ne3 Rd1 Qd3 Bc1 Nf1 Bb2 Qgd6 Bc1 Ng3 Bb2 Ka4 b5+ Ka5 Bc1 Nh1 Bb2 Qdg3 Bc1 Qe6 b6 Kb5 b7 Qb6 Bb2 Ra8 b8B Ra7 Nh5 Rb7 Bf4 Rb8 Bfc1 Rb7 Nf5 Bh4 Nf6 Qa5+ Kb1 Rb4 Bh6 Ka4 Ka2 Rb5 Bd2 Qb6 Ba3 Ka5 Bg5 Rb1 Bgc1 R5b3 Ne7 Kb5 Bab2
N1n2b1Q/n1bnR2n/1r2pRPP/2nn2k1/7r/1R1rq3/K1B2Q2/BN5b b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Qf3 g5 Qg3 gxf4 g5 Nc6 Qf3 Nb8 Qg4 hxg4 Kd1 Kf7 b4 Kg6 c4 d5 Kc2 a5 Kb3 e3 h4 e2 b6 e1N b5 e6 c5 a4+ Kb2 g3 c6 d3 b7 d4 b6 f3 c7 d2 Ra3 d1N+ Ka1 g2 Rd3 f2 Rd2 d3 Bb2 a3 Bg7 a2 Bh6 Ra6 Bg7 Nf3 Bb2 Ne7 Rh3 Nc3 Be2 f1N Rg3 Nd7 b8Q Ne3 b7 Ne3d5 Bd1 Nb5 Qa7 Rb6 b8Q Bb7 Rf2 d2 Nh3 g1B c8R Bh2 Rc7 Nc8 h5+ Kf5 g6 Qg5 Bf6 Qe3 Nf4 Ng5 Rh3 Nh7 Bc2+ Kg4 Kb2 a1N Ka2 Nb3 Ba1 d1R h6 Rh1 Rf1 Kg5 Rff3 Nbc5 Rf1 Qe5 Rb3 Qe3 Qba8 Bg3 Rf2 Rh4 Q8b8 Nde7 Nd5 Ba8 Rb7 Bc7 Rf6 Rg8 Ndc3 Nd5 Na4 Rd6 Nb6 Rg7 Qa5 Nba7 Qd2 Rf7 Rf1 Rf3 Qf2 Nb5 Ra7 Bb7 Na8 Rb6 Ra4 Rfh3 Rf4 Nba7 Rf7 Qe2 Re7 Rd3 Qe1 Qe3 Rf6 Nf4 Qf2 Bh1 Na3 Nd5 Nb1 Nd6 Qd8 Ndc8 Qe8 Bg7 Qg8 Bf8 Qh8
rr1n3Q/4b1bb/P2R1R1q/2kR1NPB/p3r2b/3Qn1B1/1b4bK/1Nn5 b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 a4 gxh4 b4 a6 b5 axb5 a5 Nc6 Qb3 Nb8 Qa4 bxa4 f4 Kd7 Kf2 Kd6 d4 c5 g4 e5 Kg2 h5 a6 b5 f5 c4 g5 c3 f6 e3 f7 c2 Nh3 b4 Rh2 b3 Na3 b2 Be2 b1B Bb5 e4 Bd3 e2 Bc4 e1B Kg1 e3 Rd2 e2 Kh2 Qb6 Nf4 h3 Rd1 h4 Bb3 Nf6 Kh1 h2 Ng6 Ng4 Ba2 Bg7 f8R Ne3 Rf5 Bb7 Rf2 Bb4 Ne7 e1B Rf4 Nc6 Rf6+ Kd7 d6 Rhb8 d5 Nd8 Bb2 c1B Rd4 Bh7 Nb1 Bg3 Ba3 Bb2 Nf5 Nc4 Rf4 Nc6 Nd2 Bg8 Rf8 Bf2 Kg2 h1R Rd1 Re1 Nb1 Ree8 Kh1 Ne3 Bc4 h3 Be2 h2 Rf7+ Kd8 d7 Kc7 Rf8 Nc2 Kg2 h1N Rf7 Bbf8 Be7 Ng3 Bd6+ Kd8 Re4 Re7 Bf3 Ne3+ Kh3 Ne2 Rb4 Bh4 Bg3 Nc1 Rf4 Kc7 Bg4 Qa7 Re4+ Kb6 d8Q+ Kc5 d6 Bbd4 d7 Bdf6 Bh5 Bb2 Kh2 Bh7 Qe8 Re5 d8Q Be7 Qh8 Qb6 Qd7 Nd8 Qd2 Qh6 Rf6 Nb3 Qe2 Bc6 Rdd6 Nc1 Red4 Bg2 Qd3 Re4 R4d5+
2B5/1qb1P2r/n1nk1n2/R2nnBQQ/2pbP3/bQ1R2K1/1b1Nr1N1/3b4 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 dxc4 b4 axb4 g5 f5 Bb2 f4 Bd4 h6 Bb6 hxg5 Bf2 g4 Bg3 fxg3 e4 Kd7 a4 c5 d4 g5 h4 b5 d5 g2 Kf2 b3 a5 c3 d6 b4 a6 g3+ Kf3 c4 a7 g4+ Kf4 b2 h5 c2 h6 c1B+ Nd2 b1N h7 b3 Ra6 b2 Ra4 Na6 Rh3 Na3 Rh2 b1N Bd3 Nf6 Qf1 Qc7 Rb4 Nc3 Rb6 Bb2 Rb8 Nc2 Be2 Ncb4 Qb1 Nc6 Nh3 g1N Rb5 g2 Ra5 Ncd5+ Kg3 Nf3 Nf4 g1B Rh3 Bgd4 Ng2 Qb7 Bf1 Ke6 d7 Bfa3 d8Q Bb6 Qa2 Bc7 Qb3 Bd7 Be2 Be8 Bf1 Bh5 Qg8+ Ke7 Qg5 Rad8 a8B Rd6 e6 Nfe5 Kh4 g3 Be2 Rdd8 Bg4 Kd6 Bf5 Bd1 e7 Rdg8 Qa4 Rg7 Qb3 Rf8 h8Q Rh7+ Qh5 Rd8 Qg7 Rg8 Qg5 Rgh8 Nf4 g2 Rd3 g1B Ng2 Be3 Kg3 Bed4 Qe8 Rh2 Qf7 R8h7 Qfh5 Qb6 Bb7 Qb5 Nh4 Re2 Bbc8 Qb7 Ng2
Rr2Q1N1/1nrrB1r1/5prQ/b1P1PN2/q2RB3/2b2K1b/1n2R3/n5kn b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 f4 cxd4 Nf3 e5 Ng1 b5 axb5 axb4 Ra6 exf4 Ra7 Rh3 Ra1 Rh8 Kf2 Ke7 h4 Kd6 e4 Ke5 c4 g5 h5 d5 b6 f3 b7 d3 h6 Kd4 h7 f6 e5 g3+ Ke1 g2 Kf2 b3 Ra5 g4 Qe1 d2 Na3 d1R Rc5 b2 Qe2 b1N Bh6 Ra7 Rb5 Qe8 Bg5 Nd7 b8R Nc5 Bf4 Nb7 Bg5 Nd2 Rb6 Nh6 Rb5 Nb3 Rb6 Bb4 c5 Ba5 Rh4 Nf5 Ra8 Na1 Nc4 Ng3 Re6 Qa4 Nh3 Nh1+ Kg1 f2+ Kh2 g1R Nf4 g3+ Kh3 g2 Kg4 Rg8 h8Q Rg6 Qa2 Rd3 Nd6 Ke3 Qb1 d4 Rh2 Rd1 Qb5 d3 Qh7 d2 Bd3 f1R Qe8 Kf2 Qh6 Rb1 Bf5 d1N Be4 Nb2 Nd5 Rfd1 Ne7 Rd5 Ndf5 Rd7 Ng8 Rc7 Nd6 Rgd1 Kf4 Kg1 Nf5 Rdd7 Rd6 Rdg7 Rd4 Bd7 Ne3 Bh3 Kf3 Nd6 Rd5 Rcd7 Qh5 Rac7 Ng4 Rh7 Rd3 Nd1 N4h6 Rb8 Rd4 Nb7 Nf5 Nb2 Bh6 Rhf7 Bf8 Rfg7 Qh6 Kf1 Bd6 g1B Rb4 Bd4 Be7 Bc3 Rd4 Kg1 Re2
q6b/PR6/1q1nK2n/B1q5/PbkqBR1p/6QQ/2q1r1r1/QqNNn3 b - - 0 1 legal: proof: d4 b5 h4 c5 e4 cxd4 a4 f5 b3 fxe4 h5 b4 h6 gxh6 Qg4 h5 Qe6 h4 Qb6 axb6 Ne2 Bb7 Ng1 Bc6 a5 Ba4 bxa4 b3 Bc4 b2 Bb5 Nc6 Bf1 Nb8 Kd2 Kf7 f4 Ke6 c4 d5 g4 h5 c5 b5 c6 b4 c7 b3 c8Q+ Nd7 g5 e3+ Kd3 h3 g6 h2 g7 e2 a6 e1N+ Ke2 h4 a7 d3+ Ke3 d2 Kd4 d1Q+ Bd3 Nh6 Nd2 b1Q Ra2 b2 Ra1 Qc7 Ra3 Qdc2 Ra1 Rg8 Qe8 Nb6 Nf1 Nc8 Bd2 Nd6 Qc6 Re8 Ba5 Qb6+ Qc5 Qbc1 Ne2 b1Q Rg1 h1Q Ne3 Qa3 Rf1 Qf3 Nd1 Qh1 Ke3 d4+ Kf2 Qac1 Qc3 Kd5 f5 e5 f6 e4 f7 Qa3 Qc8 Qac5 Qh3 Be7 f8Q Bf6 Qe7 Be5 Qf6 Qf3+ Kg1 e3 Be4+ Kc4 Nc1 e2 Ra3 Re6 Rb3 d3+ Rf2 Ba1 Kh2 d2 Qe5 Qf8 Rf4 Qa8 Rb2 Rg6 Rb3 Re8 g8Q+ Ree6 Qb2 Rg3 Qa3 Bh8 Qa1 Rg1 Qgg3 Re7 Nc3 d1Q Rb5 Qdd4 Nd1 Qbc7 Rb7 Q7b6 Qf1 Rg2+ Kh3 Nd3 Qh1 e1B Qhh2 Bb4 Qh1 Nhf5 Kg4 Ne1 Qh3 Re6 Bc6 Ree2 Be4 Qbc6 Kg5 Q6b6 Kg6 Ne8+ Kf7 Ned6+ Ke6 Nh6 Rf3 Qad8 Rf1 Qa8 Rf4
1n3kr1/PR1b3p/1n2R3/N1Q1N2B/qrQ4r/1PbQ1b2/2Brn3/1K1nr3 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 exf4 h5 a4 h6 a3 Nh3 gxh6 Ng1 h5 Qc2 h4 Qa4+ Nd7 Qd1 Nb8 d3 b6 b3 Qf6 Qd2 Ra5 Bb2 axb2 a4 Ra8 a5 Qg5 a6 Qd8 Qa5 bxa5 Kd1 f5 Kc2 c5 g4 f3 e4 a4 d6 a3 e5 c4 e6 c3 e7 f2 g5 h3 g6 h2 d4 f4 g7 a2 d5 f3 Bh3 f1B Nd2 b1N Bg4 f2 Be2 Bg2 Bb5+ Qd7 Bd3 f1R Be4 Nf6 g8Q Rd1 Nc4 Rd2+ Kc1 c2 Nf3 Qc6 Re1 h1R Qg4 Rg8 d7+ Kf7 d8Q Nfd7 d6 Bg7 e8B+ Kf8 Qdg5 Nc3 Bh5 Rh4 Qc5 Nb6 Bf5 Bh8 Re6 Qb5 Kb2 c1N+ Bc2 N1e2 Qe4 Bd4 Nfe5 Bf3 Rg1 a1R Rg7 Rad1 Rb7 Re1 Qg4 Nd1+ Kb1 Bc3 d7+ Rd6 d8Q+ Qe8 Rbe7 Rd2 Qd3 Ra7 Qgd4 Rd7 Qg4 Rd4 a7 Qa4 Na5 Rb4 Qgc4 Rgg1 Rd6 Rg8 Rb7 Bd7 Re6+
1q4B1/N1Q1Q1N1/q2R1R2/1b5r/3r1p2/1K1bq2B/P1rPnk1q/rn1q3N b - - 0 1 legal: proof: f4 e5 c4 d5 b4 dxc4 g4 a5 g5 axb4 Bb2 f5 Bd4 Be7 Be3 Bf6 gxf6 h6 Bf2 exf4 Bh4 Ra5 Bg5 hxg5 Bg2 Ra7 Bf1 Ra8 h4 Kd7 e4 Kc6 h5 b5 e5 Kd5 f7 Ke4 f8N c5 h6 c3 e6 g4 h7 g5 e7 f3 e8B f4 Bf7 g3 Nh3 b3 Bg2 b2 Nd7 c2 Rg1 c1R Be6 b4 Bg4 b3 Nb6 c4 Bh5 g4 Bf1 f2+ Ke2 c3 Qe1 g2 Nc4 g3 Bf7 c2 Rh1 g1Q Na5 g2 Bh5 Ne7 Nc4 Ba6 Na3 b1Q Be8 b2 Rh2 Nd5 Bf7 Nc6 Bg8 Qb8 Nb5 Rd1 Na7 c1R Rh1 Qh2 Ng1 Qc2 Rb1 Bb5 Nc8 Qa4 Na7 Rc2 Rc1 Qa6 Rb1 Qg3 Rh6 Qh2 Rf6 Rdc1 Rd6 Rd1 Rc1 b1Q Rf6 Qa1 Rb1 Qc3 Rb3 Qcg3 Rd3 Ra1 Ne3 Qgh3 Qc1 Nd4+ Kd1 Ne2 Nf5 Qf3 Ng7 Qe3 Rc3 Bd3 Rcc6 Bb5 Rcd6 Kd3 Nf3 g1Q Nd4 Ke4 Ndf5 Kf3 Ng3 Bd3 Nh1 Qg4 Bh3 f1B Ng3 Kf2 Bf7 Rd8 h8Q Qgf3 Qh6 Rh8 Qh4 Rh5 Bg8 Qfh1 Nb5 Ra7 Qg5 Re7 Qh4 Re4 Na7 Rd4 Qg5 Nb6 Qe5 Nc4 Qe7 Na3 Qf8 Rc6 Qe7 Nb1 Qc3 Bb5 Kc2 Qhf3 Kb3 Bd3+ Qb4 Rc2 Qe5 Nec3 Qb7 Qd1 Qe7 Bb5 Qbd7 Bfd3 Qc7 Ne2 Nh1+
2KRb1kq/B2B2r1/6Nn/1bbP4/5b2/1p1nrPqQ/1N2nnRQ/1n4B1 b - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a5 Qc2 axb4 Qb3 Ra5 Qd1 Ra8 h4 g5 e4 gxh4 a3 bxa3 Rh2 fxe4 Rh3 Bg7 Rh1 Bf8 Ke2 Kf7 Ke3 b5 Kf4 c5 Ke5 h5 d4 a2 g4 h3 g5 h2 d6 e3 d7 c4 Qe2 b4 Bb2 h4 Kd5 e5 Na3 b3 Nb5 e4 Nc3 h3 Qd3 e2 Qd1 e1Q Rc1 a1N Rb1 e3 Ne4 e2 Nc5 c3 Ba3 c2 Rb2 c1B Na4 Nc2 Bc5 Nc6 Qd2 Nh6 g6+ Kg8 Ke6 Rh7 g7 Ba6 Ba7 Bb5 Nf3 Na3 Nh4 Bc5 Ng6 Nb1 Qc2 Qb8 d8B Bf4 Kd7 Qc3 Qd3 e1N Bdb6 Qf8 Rc2 Re8 Nb2 Re3 Bg2 Qf6 Kc8 Qh4 Qe2 Nd3 Rd1 h1N Qf1 h2 Bh3 Qg3 Bd7 Bb4 Rdd2 Bc5 d5 Nd4 Qh3 Ne2 f3 Nhf2 Rc1 h1B Rdc2 Bg2 Rg1 Bf1 Rg2 Qd2 Rc4 Qc3 Re4 Qf6 Re8+ Qf8 Rd8 Bc6 Bg4 Be8 Bd7 Kf7 Qh2 Qh8 g8Q+ Kf6 Bb5 Rg7 Qh7 Kf7 Ba4 Ba3 Bd7 Bc5 Ne5+ Kf8 Qf5+ Kg8 Ng6 Bg5 Qg4 Bf4 Qgh3 Re6 Na4 Ndc1 Qh5 Bce3 Rg1 Ne4 Ne5 Nd4 Qc2 Bb5 Qh3 Nd3 Qch2 Ne2 Ng6 Bf2 Rg2 Bd4 Bc7 Bg1 Be5 Bc5 Bd4 Re5 Bg1 Nef2 Nb2 Re6 Bb6 Re3 Ba7
8/qr2Pr2/pB1brQ2/b3R1b1/r2P1nqR/3RN1Qb/b4K1B/1k2nN2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 Kd7 h4 Ke6 b4 Ke5 b6 Kd4 h5 Kd3 b5 g5 h6 c5 h7 f5 e5 f4 b7 c3 e6 c2 b6 f3 Bb2 c1B Rh2 g4 Ra6 c4 Ra4 c3 Rh1 c2 Ra2 Bd6 e7 Qc7 Bf6 Nd7 b8Q Ne5 b7 Be6 Ne2 g1B Rh3 g2 Rh1 g3 Qe8 Bb6 b8R Ba5 Ra1 Ba2 Bh4 Nf6 Qd7 Rf8 h8B Nh5 Ng1 Rf7 Qg4 Nf4 Rc8 a6 Bg7 Rb8 Nc3 Qa7 Nge2 Rb7 Qh3 g1Q+ Qf1 g2 Nd5 Bac7 Bf2 Ba5 Bb6 Qd4 Rh5 g1R Rc5 Rg6 Rh4 Re6 Ne3 Qe4 Qg2 f2+ Kf1 Qb4 Ng3 Nf3 Re5 Ne1 Qh5 Qe4 Qh8 Qf5 Qh6 Qg4 Qf6 Bca3 Rh1 c1R Rh4 Rc4 Rd1 Bc1 Bh6 Nd5 Bf4 Ra4 Nc4 Kc2 d4 Be3 Rd3 Kb1 Qf3 Bc1 Ne3 Bcd2 Ke2 f1B+ Kf2 Bh3 Ngf1 Bc1 Bh2 Bcd2 Nf5 Bg5 N5e3 Nf4 Qg3
4Kb2/krP2p2/1PB2RbB/2nrQ2Q/3N2qr/b3NQ1b/r7/1Rnr1q2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 g5 a4 b5 h4 d5 c4 Kd7 e4 Kc6 e5 Kb6 c5+ Ka7 h5 d3 h6 b3 c6 f3 Kg3 b4 h7 d4 e6 d2 e7 d3 e8Q f2 Ra2 b2 Nh3 b3 Qde2 d1R Be3+ Qb6 c7 d2 Qc4 Na6 Qd4 Nh6 Rh2 Nc5 Na3 b1R Rc2 b2 Bg2 f1Q Qd5 Be6 Rh1 Nf5+ Kh2 Bd7 Ng1 g3+ Kh3 Nd4+ Qf5 g4+ Kh4 Ndb3 Kg5 Nc1 Bc6 g2 Kf6 g3 Qf3 Bg4 Bh6 Bh3 Ne2 g1B Nc4 g2 Nd4 Be3 Qe5 g1Q Qh5 Qg4 Rg1 Bf4 Ne3 B4d6 Rc3 N5b3 Rc2 Ba3 Rc4 Nc5 a5 Rb8 Rb4 Ra1 Rg2 b1B Rf2 Bf5 Rb1 Bg6 Qe5 Ra2 Qh5 Bg7+ Ke7 Rb7 Qe5 Bf8+ Ke8 Rg8 h8Q Rg7 Bf4 Rh7 Bg5 Rh4 Qh5 Re1 Bh6 d1R Qfd5 Ree2 Rf6 Red2 Qf3 Rd3 Ne6 Rd7 Nd4 Rd5 axb6+
n5b1/k2b2N1/1qQ1rqQb/nnpPB2b/RN3r2/3Kn3/P3B2R/4q1Q1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 b4 axb4 h4 gxh4 e3 e5 Ba3 exf4 Bc1 fxe3 Ke2 Kd7 d4 b5 g4 h5 g5 c5 d6 Kc6 d7 Kb7 g6 f5 g7 b3 Ba3 f4 Nd2 f3+ Kd3 b4 Qb1 b2 Rh3 b3 Bg2 e2 Bh1 e1Q Ne2 Nc6 Rh2 f2 Nc4 f1N Qc2 b1N Qd2 b2 Bb4 h3 Ne5 h4 Bc3 Nf6 g8Q Ra4 Bd5 Na3 Qg3 b1Q+ Qc2 Ne3 Bc4 Na5 Qf3+ Ka7 Nf4 Ne8 Nd5 Qf6 d8Q Nc7 Qh5 Nab5 Qh6 Bd7 Qg6 Na8 Qg1 Bh6 Nb4 Re8 Nf3 Re6 Qe8 Qb2 Rd1 Qb1 Rf2 h2 Ng5 h1B Rh2 h3 d5 Bf3 Bd4 Bh5 Be5 Bf7 Qc8 Bg8 Qc6 Qb2 Rdd2 Qbb1 Rdf2 Qb2 Rf4 Qbb1 Rd2 h2 Rh4 h1B Rdh2 Bf3 Rf4 Re8 Ne6 Bh5 Ng7 Re6 Re4 Qa1 Qcg2 Qd8 Qg6 Qb6 Bb3 Qb2 Bd1 Qbf2 Be2 Qf6 Na6 Rb4 Rg4 Rf4 Rgh4 Rf3 Ra4 Rf4 Nb4
2b2RNK/N6P/1b6/N2pR3/1PqQb2Q/n2k2r1/q1rr3r/1nqB2Bq b - - 0 1 legal: proof: d4 b5 d5 e5 a3 b4 axb4 c6 Bd2 cxd5 Bc1 d4 g4 a5 f4 exf4 b3 h5 Ra3 hxg4 Ra2 a4 Ra1 axb3 Kf2 Ke7 e4 Ke6 c4 Ke5 h4 g5 c5 d5 h5 f5 c6 d3 h6 Kd4 c7 b2 e5 d2 e6 f3 Kg3 f2 e7 f4+ Kg2 f3+ Kg3 Na6 e8Q Nf6 Qea4 Ne4+ Kh2 Bc5 Qe1 d1R Ra3 Nc3 Kg3 Bb6 Ne2+ Kd3 Nd2 b1B Ne4 Rd2 Bg2 f1Q Rh5 f2 Bf3 Qh1 Nd4 f1Q Qad1 Bc2 Ra4 Nb1 Nb3 Qe8 Ra1 Qa4 Na5 Qa2 Nf6 Qe2 Bb2 Qe4 Qf2 Qec4 Bd4 Rh7 Qde1 Ra7 Qe5 Qc1 Bd1 Rb7 Kg2 g3 Kf3 g4+ Kf4 g2 Kg5 g1Q Kg6 g3 Ng8 g2 Qh4 Qh1 Bg1 Rh8 Kg7 Ra7 Bc5 g1R+ Rg5 Rg3 Bg1 Nc5 Qef4 Ne4 h7 Nd6 Qfg4 Nb5 Rh5 N5a3 Re5 Bd7 c8N Rc7 Nh6 Rf8 Na7 Rff2 Ng8 Bc8+ Kh8 Rh2 Qe4+ Kc3 Qef4 Be4 Qfg4 Qab3 Ra2 Kd3 Rc2 Qa2 Qf4 Rdg2 Rf2 Rc6 Rf1 Rd2 Qfg4 Rc7 Rf8 Qcb3 Qf5 Rcc2 Qf2 Qc4 Qd4+
n1q2RbR/1n1b2BP/B3p3/3bN1k1/nrb4r/n3KQq1/r4NQP/4N3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 g3 fxe4 Bh6 e6 Bg5 h5 Bc1 Be7 Qg4 Bh4 gxh4 hxg4 Kd2 Ke7 c4 Kf6 a4 g5 f4 b5 f5 d5 a5 b3 c5 d3 h5 b4 a6 g3 h6 e3+ Kd1 b2 a7 d2 Ke2 d1N c6 b3 c7 g4 Ra4 d4 Ra3 d3+ Ke1 d2+ Ke2 g2 Ra4 g3 Kf3 e2 Kf4 e1N Rd4 Nc2 Ra4 Nd7 Nf3 g1R Ne5 g2 Ra2 Nc3 Ra1 d1B Bd2 Bf3 Ra5 Nc5 Be3 Nb7 Ra6 Bd7 c8N Na4 Bd4 Ne7 Bd3 Na3 Nd2 b1B Ke3 b2 Nd6 Bd5 Ndf3 Qc8 Ne1 Kg5 f6 Bba2 f7 b1B f8Q Bac4 Qf3 Bc2 Bf1 Bh7 Bc3 Rb8 a8Q Bg8 Bd3 Rf1 Ba1 Rf2 Rf1 g1Q Ne4+ Kh4 Bd4 Ra2+ Nf2 Kg5 Rc6 Qg3 Rc7 Qe8 Rc8 Rh7 Rd8 Nc8 Bb2 Ncb6 Rc8 Rf7 h7 Rf4 Bd4 Rh4 Bc3 Bb3 Ba6 Bbc4 Bb2 Qd8 Bc3 Qc7 Rf8 Qc8 Rd8 Bf7 Rh8 Bg8 Ba1 Na5 Qb7 Na8 Qb2 Nb7 Qe2 Qg4 Qg2 Qg3+ Qef3 Qg4 Bc3 Qg3 Nh3+ Kh6 Nf7+ Kg6 Bg7 Nd6 Rf2 Qg4 Qfg3 Rb4 Ne5+ Kh5 Rf7 Nb7 Nf2 Kg5 Q3f3 Qg3 Rf8
1BK1nR1k/1rP1N2q/P2B1b2/1qnb3B/Q1r5/6q1/N2rQ1bp/4rRb1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 f4 g5 h4 b5 h5 Ra6 Ba3 Rh6 Bc1 f5 exf5 gxf4 Nf3 Rxh5 Ng1 Rh2 Ke2 Kf7 Kd3 Kg7 Ke4 e5 Kd5 h5 c4 h4 g4 e4 a4 d3 g5 h3 g6 e3 c5 e2 c6 e1B a5 d2 c7 f3 a6 f2 Ke5 d5 Qg4 d1B Qe2 b3 Nd2 b4 Qf3 d4 Qb7 b2 Qg2 b1R Be2 f1Q Ra3 b3 Bd3 b2 Qe4 Qg5 Ndf3 Bb7 Ke6 Rd2 Be2 d3 Nd4 h2 Nc6 Rh4 f6+ Kh8 f7 Nf6 Qa4 Bf2 Ne7 Rc4 Bh5 Bg7 f8B Nbd7 Ne2 Bb3 Nc3 Bg1 Na2 Bg2 Kd6 Ne8+ Ke6 Rdc2 Be3 d2 Ba7 d1R Bb8 Bf6 g7+ Kh7 Ng8 Qg3 Bd6 Rcd2 Ne7 Re1+ Be2 Bc2 Rf3 Be4 Bd1 Qd3 Rf1 Qb3 Bh5 Qb5 Rf3 Ra1 Rf5 b1Q Rf4 Qbd3 Rf5 Rab1 g8Q+ Kh6 Qg5+ Kh7 Qg4 Kh8 Qe2 Bc6 Rf2 Qh7 Rf1 Qc5 Rf4 Rb7 Rf2 Qb5 Rf4 Bf2 Rf1 Bg1 R4f2 Be5 Rf7 Bf6 Rf8+ Kg7 Qa3 Bce4 Ng8 Kh8 Qa4 Bg7 Ke7 Nc5 Kd8 Bd5 Kc8 Bf6 Ne7+
1B1BK1b1/P2Bn3/1b1N4/b1Q2q1k/2b2rp1/R4Q1q/P1n3r1/q2NRq1n b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 bxa5 b5 d4 bxc4 g4 c5 g5 cxd4 g6 hxg6 Qc2 g5 Qd1 g4 Kf2 d5 e4 f5 h4 Kf7 e5 Kg6 e6 f3 Kg3 d3 Kf4 d2 Ke5 f2 e7 d4 a6 c3 a7 d3 Qb3 d1N Bb2 f4 Qe6+ Kh5 Nh3 g5 Bc1 c2 Bd2 c1Q Qc4 g3 Qb5 g2 Qc6 g1B Qg2 f3 Bc3 d2 Na3 g4 Rb1 Na6 Nc4 Qd3 Rb2 Qf5+ Kd6 Be6 Bf6 Nb4 Rb3 Qa1 Ra3 Nc2 Be5 Bh6 e8Q+ Bf7 Bf6 Ne7 Qc8 Bg8 Qc5 Rf8 Be2 f1Q Nf2 Bg7 Kc7 Rf7 Kd8 Rh6 Qg3 Qh3 Nd6 Bh8 Bg5 Bc3 Bb5 Ba5+ Ke8 Re6 Bd7 Re2 Nfe4 f2 Qf3 f1B Nc3 Nf2 Nd1 Re1 Bf4 Bc4 Be5 Re2 Bf6 Bh2 Re1 Nh1 Be5 Rg2 Bg3 Kh6 h5 Bg1 Be5 Kg5 h6 Kh5 h7 Bd4 h8B Be3 Nf2 d1Q Bhf6 Qe2 Nd1 Qf1 Qb5 Beb6 Qc5 Qh7 Bh4 Rf4 Bg5 Qf5 Bgf6 Nc8 Bd8 Ne7 Nc8 Qg1 Bb8 Qf1 Nd6
4n2b/n5n1/2Q1NBBK/B6n/bP3N2/q1p1bP1R/bkbr1r1Q/6Rb b - - 0 1 legal: proof: c4 f5 a3 d5 Nh3 b5 Ng1 b4 axb4 dxc4 h4 g5 e4 fxe4 b3 gxh4 Ba3 a5 Bb2 a4 Bc1 axb3 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Kd4 g4 e5+ Kh5 c5 g5 e3 g6 e2 d3 e1N g7 b2 Qf3 h3 Ra3 h2 Nh3 c3 Nf4 e4 Nh3 c2 Ra6 e3 Qg3 c4 Be2 Bf5 Ra7 Nf6+ Kg5 h5 g8Q h4 Rh7 Ng2 Qg6 Bg7 Re1 h1B Rd1 Ra2 Qc7 Nc6 Bh5 e2 Qe7 e1N Ng1 h3 Qe6 h2 Rh6 Nh4 Be2 Qa5 Bh5 Rd8 Qh7 Bh8 Bf7 Neg2 Bg6 Na7 Nc3 b1B Nd5 Qa3 Nh3 Nf4 Qc6 N4h5 Rg1 Ne8 Ndf4 Kc3 d4 Rd7 Bd2+ Kb2 d5 c1B d6 c3 Ne6 Bfc2 Nhf4 Nf5 Be3 Ba4 Bd4 Bbc2 Bf6 Bd5 f3 Rd8 Qhc7 h1B d7 Be3 Rh7 Nfg7 Kh6 Ra1 Q7d6 Ba2 Qd2 Rf1 Qh2 Rc8 d8B Rf2 Bb6 Rd8 Ba5 Rdd2 Kg5 Ng3 Rh3 N3h5 Kh6
1BB1b2r/2bq1R2/7r/n2b3P/NP1n1Q1K/N6b/k1Qp1nrn/1r3NR1 b - - 0 1 legal: proof: d4 b5 d5 e5 a3 b4 axb4 c6 Bd2 cxd5 Bc1 d4 g4 a5 f4 exf4 b3 h5 Ra3 hxg4 Ra2 a4 Ra1 axb3 Kf2 Ke7 e4 Ke6 c4 d5 h4 f5 e5 g5 c5 b2 h5 g3+ Kg2 f3+ Kh3 d3 c6 d4 c7 Kd5 e6 Kc4 e7 f2 e8Q g2 Qde2 Kb3 Q2e4 g4+ Kg3 f4+ Kh2 d2 Ra7 d1N Ra4 f3 Kg3 d3 Qb7 d2 Be2 f1N+ Kf4 f2 Bd3 g3 Ra7 Bd6+ Kf3 Bd7 c8N Rh6 Qc7 Nc6 Qe4 Na5 Qb8 Bc7 Qe1 Be8 Kg4 Ka2 Qe2 Ne7 Ba6 Nec6 Na3 b1B Nf3 g1R Qd3 g2 Bb2 Nd4 Qc2 Qd7+ Kh4 Nh2 Nb6 f1B Na4 Nf2 Bc8 Bc4 Rb7 Bd5 Ra7 Re1 Rb7 g1R Ra7 Rg3 Rg1 Rg2 Rb7 Nhg4 Nh2 Rd1 Nf1 Nh2 Qc3 Bbg6 Qc2 Bf5 Ra7 Bh3 Rb7 Bb6 Qf4 Rb1 Rc7 Qb5 Rf7 Bc7 Qce4 Qd7 Ba1 Nc2 Be5 Nd4 Qef5 Rh8 Qd3 Ra6 Qc3 Rah6 Qc1 Bb6 Bb8 Bc7 Qc2+
NBqb1R2/P2N1qRP/kn3N2/3rr2Q/4q1BK/4Qb2/1p4b1/2qqr1q1 b - - 0 1 legal: proof: d4 a5 h4 g5 f4 h5 g4 c5 b4 cxd4 f5 axb4 f6 exf6 Rh2 f5 Nc3 f4 Nb1 Na6 Rh1 Nc7 Nc3 Nd5 Nb1 Ndf6 Rh3 gxh4 Rh1 h3 Na3 h4 Nb1 Nh5 gxh5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 b5 a4 d5 c4 Kd7 e4 Kc6 c5 Kb7 e5 f5 a5 d3 e6 d4 e7 h2 e8Q b3 c6+ Ka6 c7 b2 h6 b4 h7 h3 Qea4 b3 Nf3 Nf6 Qb4 Be7 Ne1 f3 Kg3 f2 Be2 f1R Nd2 b1Q Nc4 f4+ Kh4 b2 Qba4 f3 Qab3 d2 Ra4 f2 Bd3 Re8 Nc2 Re1 Qb8 f1Q Rb4 Bb7 c8N Bf3 N8b6 Qc8 N2e3 Bd8 Ng4 Nd5+ Nf6 R8e5 Bf5 d3 Rg1 h1Q Rg7 h2 Bg4 Qhg1 Nd7 h1B Ncb6 Bhg2 Rf4 Ra7 Qb3 d1Q Na8 d2 Qe3 Nb6 Rf5 Rd5 Qbe5 Qe4 Rf4 Qb3 Qh5 d1Q Bd2 Qbc2 Bc3 Qcc1 Be5 Qfc4 Bb8 Re5 Rf5 Qf7 Rf4 Rc7 Rf5 Rcc5 Rf4 Kb5 a6 Ka5 a7 Ka6 Rf5 Red5 Re5 Ra5 Re8 Re5 Reg8 Rad5 Rf8
R5QN/5nBb/Q2rn3/1n1PN3/nb1nP2R/1n2Kp2/1b1Nn2B/rr4k1 b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Nh4 h5 Bh3 Qg5 Nf3 Qf6 Ng1 f3 Qb3 f4 Qd1 Qf5 gxf5 Bd6 Bg4 hxg4 Qc2 Be7 Qd1 Bf8 Kf2 Kf7 a4 Kf6 e4 Ke5 h4 Kd4 f6 g5 h5 b5 f7 c5 a5 b3 d3 b4 h6 b2 a6 b3 a7 g3+ Kf1 g2+ Kf2 c3 h7 c4 Qe2 c2 Nh3 g1N Qe1 g4 Ra3 g3+ Kf1 f2 Qd2 c3 Qe1 Nf3 Ke2 f1R Ng5 g2 Rh3 Nd7 Bd2 c1B Rh2 g1N+ Kd1 Nh6 Ra5 Ne2 Rh3 Bb4 f8N Nc5 Ra4 Ne6 Rh4 Nf7 Na3 b1N Ng6 b2 Ne7 Rd8 Kc2 Rd6 Nc4 Na3+ Kd1 b1N Ng6 Rh1 Nce5 Nb5 h8B Bb2 Qf1 Rb8 Be1 Ke3 a8Q Nfd4 Ngf3 Rg1 Nd2 f3 Bg3 c2+ Ke1 c1N Bg7 Ncb3 Bh2 N1c3 Nh8 Rh1 Ra5 Na4 Qd5 Rb7 Ra8 Rc7 Qc5 Ng3 Qc1 Na3 Ra5 Ned8 Bf8 Ndf5 Qd1 Rc1 d4 Ra1 d5 Nfd4 Rf4 Bf5 Rh4 N8e6 Ra8 Bh7 Qc1 Ra2 Qc4 Nge2 Qc6 Nab5 Qa6 Ng1 Qg2 Ra3 Qg8 Ra2 Kd1 Kf2 Bg7 Ra1+ Nb1 Kf1 Bh6 Nge2 Bg7 Nc6 Kc2 Ncd4+ Kd3 Kf2 Nd2 Rhb1 Nec4 Kg2 Ke3 Kh1 Ne5 Kg2 Bf4 Kg1 Bh2+
q4B1k/rR2q3/PK3n2/Q4NpN/r1N1nb1q/3nrP2/2B1q3/Rn2n2Q b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 g4 h5 c4 hxg4 Bh3 b5 Bf1 b3 Bh3 b4 Bg2 Ba6 Bf1 Bb5 cxb5 Qa5 Bd2 Qc7 Bc1 Qd8 Kd2 Kf7 a4 g5 h4 Kg7 b6 d5 a5 e5 h5 g3 b7 g2 a6 e3+ Kd3 b2 f3 e2 Ra2 e1Q Rh4 e4+ Kc2 d3+ Kb3 d4 Kc4 e3 Kb5 e2 Na3 b1R Qc2 b3 Qc4 b2 Rh3 d2 Qa4 d1Q Rh4 d3 Bf4 d2 Be3 Ra7 Bf2 Nd7 b8N Nc5 Nd7 Bd6 Be3 Ra1 Rb4 Qa8 Nc4 b1N Qa5 Bf4 Nf6 Qc2 Rb3 d1N Bd4 Nb2 h6+ Kf7 h7 Kg7 Bc3 Qg3 Ra4 e1N Ne2 g1Q Bb4 Qe3 Nd4 Ra3 Bh3 Qce2 Bf5 Ra2 Bc2 Nbd3 Ne4 Qg4 Ng3 Nf6 Rb2 Re8 h8Q+ Kf7 Qh6 Kg8 Qh1 Qh4 Ndf5 Kh8 Nh5 Qe5 Ra3 Qd6 Ra4 Re3 Ba3 Nce4 Bc5 Qe6 Bf8 Qe7 Rb3 Rb2 Ra1 Ra2 Rb2 Ra4 Rb4 Rb7+ Kc6 Ra7+ Rb7 Qd6+ Kb5 Qe7 Kb6
2r1n3/3R2k1/Nr3nb1/r2bQ1Bp/2nNr1Pb/1QN2RnK/3P2rn/4B3 b - - 0 1 legal: proof: g4 d5 f4 a5 e4 f5 c4 dxc4 b4 axb4 h4 g6 Bd3 Qd4 Bc2 Qf6 Bb3 Qg5 hxg5 Kd7 Ba4+ Kd8 Bd7 fxe4 f5 Bh6 f6 Bf8 Be6 Ke8 Bf5 gxf5 Kf1 Kf7 Kg2 h5 a4 b5 a5 e5 a6 c5 a7 e3 Qf3 c3 Ra3 e2 Qf4 e1R Ra4 c2 Kh3 e4 Nc3 c4 Nce2 c3 Ra3 b3 Bb2 c1N Qh2 f4 Qg3 b4 Kg2 c2 Rh2 f3+ Kh3 e3 Ra6 f2 Re6 f1N Rh1 Nd3 Re5 c1R Rf5 Na6 Rh2 Be7 Rh1 Nc7 Rc5 Ne8 Nf3 Be6 Qc7 Ne5 Rd5 Nc4 Nf4 e2 Nd4 Ng3 Rd7 Bd5 g6+ Kf8 f7 Bh4 Qd6+ Kg7 Qe5+ Ngf6 Rf1 Rf8 Bc3 b2 Rf3 b1B Bb2 Rc8 a8N b3 Nc7 Bf5 Ba3 b2 Be7 b1R Na6 Rb6 Bd8 Ra1 Be7 Kh6 g7 Bg6 g8Q Ra5 Bc5 Rg1 Bd6 e1N Nfe2 Rg2 Nc3 Ng7 Bb8 Rfe8 f8B Ree6 Be7 Nge8 Qd6 Re4 Qe5 Nc2 Bbd6 N2e3 Qge6 Nef1 Bc5 Rb7 Qb6 Nh2 Qb3 Ng8 Bf6 Rb6 Bce7 Kh7 Bg5 Ngf6 Bf4 Ne2 Bg3 Kg7 Be1 Ng3 Bf8+ Kg8 Bh6 Kh8 Bg5 Kg8 Rd6 Kg7 Rd7+
1r1Rr3/4nBrP/2BQ3R/r3n1bK/3n2P1/Q1r1Nnpn/r2q2Q1/k1N5 b - - 0 1 legal: proof: e4 c5 f4 a5 d4 cxd4 b4 axb4 f5 d3 f6 gxf6 Na3 f5 Nb1 f4 g4 h5 Bd2 d5 Be3 d4 Bf2 h4 Bg3 hxg3 Qe2 Be6 Qd1 Bd5 exd5 Bg7 Na3 Bh6 Nb1 Bf8 c4 Kd7 h4 Kd6 a4 Ke5 c5 b5 d6 f5 c6 d2+ Ke2 b3 Kf3 d3 a5 Kd4 a6 e5 h5 b2 a7 e4+ Kg2 f3+ Kh3 e3 c7 b4 c8Q f2 h6 f4 d7 b3 h7 e2 Nc3 e1N Qf3 b1N Nd1 b2 Ra6 Na3 Ra5 b1R Rc5 Be7 Qcb7 Nb5 Rg5 Nc6 Ne3 Kc3 Kh4 Kb2 Qd5 d1N Rh2 f3 Qb3+ Ka1 Qb4 d2 Bh3 f1R Qf4 Nf2 Qfc7 d1R Qcc8 Rd2 Ne2 Ra2 Nc1 Rb3 Qa6 Rb8 a8B Rh1 Qc7 Rc3 Nd1 Bf6 Qca5 Nge7 Ne3 Re8 Bg2 Rf1 Qb4 Rh1 Rh3 Rh2 Qb7 Ra5 Bf1 Rg2 Bc4 Rh2 Kh5 Rg2 Re5 Bg5 Rd5 Ne5 Rh4 Nh3 Qa3+ Ra2 Rd2 f2 Qg2 f1R Bc6 Qb6 d8Q Qd4 Bg8 Rff8 Bf7 Rg8 Rd1 Rg7 Rd3 Bf6 Kh6 N1f3 Rd2 Qd3 Qc7 Qe2 Rd8 Nbd4 Qcd6 Qd2 Rh5 Nd3 Re5 Bh4 Re6 Nde5 Kh5 Bg5 Rh6
5n1Q/N6R/R2q1q1r/P3BNQ1/q1Bbn1KN/2n1q1p1/nk1Pr3/q2q4 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Kf2 g3+ Ke1 Bg4 hxg4 Qd5 Bb2 Qd6 Bc1 Qd8 e4 Kd7 Ke2 Kc6 Kf3 Kb5 e5 h5 e6 c5 g5 f5 e7 f4 e8N b3 a4+ Kb4 g6 b5 g7 h4 a5 c3 Qc2 b2 Be2 h3 Kg4 c4 Na3 b1N Qg6 Kb3 Qa6 h2 Nf6 c2 Nh5 b4 Qb6 c3 Qc5 f3 Kf4 f2 Bd1 f1Q+ Bf3 Qd6+ Kg5 Rh6 Nc4 Nf6 g8Q Bg7 Qc7 Nbd7 Qe6 Ne4+ Kg4 Nf8 Nh3 g1Q Qb8 Bd4 Qg8 Qe3 Be2 Qff6 Bb2 c1N Ng5 c2 Nf3 Na2 Nh4 c1Q Qg5 Qd1 Nb6 Nbc3 Nc8 Ra7 Qa8 Re7 Na7 Re6 Rf1 h1Q Ng7 Qc2 Rfc1 Qhd1 Ngf5 Re8 Rab1 Re7 Ba1+ Ka3 Qd8 b3 Qa8 b2 Qc8 Qdg1 Bc4 Qa4 Re1 Qf1 Re2 Re8 Rh2 Qfe1 Rc1 b1Q Rc2 Re7 Rb2 Q1g1 Rb6 Qbb3 Ra6 Qbd1+ Be2 Kb3 Bb2 Qa1 Bc4+ Kc2 Rh1 Qgd1+ Be2 Qf3+ Kh3 Nh7 Qd8 Be3 Nc8 Nb5 Nb6 Nc5 Rh2 Rh5 Qh8 Nf8 Nc8 Qff4 Bd4 Nbc3 Bc4 Kb2 Na7 Bg1 Rh1 Re2 Be5 Bd4 Rh2 Qe3 Kg4 N5e4 Ng2 Rh6 Rh3 Rg6 Rh7 Rh6 Ngh4
2q4k/3P4/1r1b3K/3rbQ1b/N4PqN/n1NpBQ2/2r2RRr/qB2q1b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 h5 fxe4 h6 c5 Ne2 gxh6 Ng1 h5 Qe2 h4 Qf3 Nh6 Qd1 Ng8 c4 d5 Bd3 d4 Be2 Nd7 Bf1 Ndf6 d3 Nd5 cxd5 c4 Ke2 cxd3+ Kd2 Rb8 Ke1 Ra8 Kd2 Kf7 a4 Kg7 f4 b5 g4 e5 g5 h5 d6 b3 g6 h3 a5 b4 a6 h2 a7 e3+ Ke1 b2 Qg4 e4 Be2 b3 Ra2 d2+ Kf1 d1R+ Kg2 h4 Kh3 Nf6 Na3 b1Q Rb2 Ne8 Bf1 e2 Ra2 e1B Bb5 b2 Qe6 e3 Kg4 e2 Ra1 h3 Nc2 Bc3 Ne1 Qf5+ Kg3 b1R Bb2 Nc7 Bd3 Nb5 Ra2 Na3 Bc1 Rb6 Ng2 e1B+ Rf2 Qd7 Kf3 Qg4+ Ke4 Rd2 Nh4 Rc2 Be3 Rh5 Qf7+ Kh8 Ne2 Rd5 Rg1 h1Q+ Rgg2 h2 Qf5 Rab8 a8N Qf1 Bb5 h1Q Bd3 Rbb2 Nb6 Qc7 Bc4 d3 Ba2 Be5 Na4 R8b6 Bb1 Bd2 Nec3 Qe1 d7 Bb7 Nc5 Qc8 N5a4 Bfd6 g7+ Kg8 Nd1 B2b4 Ndc3 Bbc5 Ba2 Qa1 Bb1 Qe1 Qh7+ Kf7 g8Q+ Kf6 Qe8 Bc6 Qf5+ Kg7 Qe7+ Kh8 Qeg5 Qg3 Qh3 Ra2 Kf5 Qg4+ Kg6 Ba8 Qf3 Bcd4 Rf1 B4c5 Bc1 Bg1 Kh6 Bb7 Qf5 Bc6 Rg3 Rh2 Bd2 Rc2 Be3 Qg7+ Kh5 Ra5 Q3g4 Bf3 Rg2 Rd5 Rff2 Qgg8 Kh6 Be2 Qg3 Bh5 Qgh3 Qg4 Qf3
1q2rBR1/1nb2rb1/2k5/r3pQPK/1R1PQ1N1/Rn1Nn1rb/B4p2/1r6 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 g5 h4 gxh4 f5 b5 axb5 Bxf5 e4 Bc8 e5 Bg4 e6 Bxe6 Bd3 Bc8 Bf1 e5 Ke2 Kd7 Kf3 f5 d4 c5 b4 h5 g4 a5 g5 h3 b6 f4 b7 a4 b5 a3 b6 h2 Qd2 a2 Qc2 c3 Qd1 c4 Qe1 h4 Kg4 h3 Be3 c2 Ne2 c1R Qd2 c3 Ng3 f3 Na3 c2 Qa5 f2 Qb4 Ra5 Rg1 h1R Be2 h2 Qd2 Nc6 b8R Nge7 b7 Nf5 Bc4 Kd6 Rb1 a1N Ne2 Re1 Rg2 Rhg1 Nc1 h1R Ba2 R1h7 Rg3 Rf7 Nc4+ Kd7 Bf4 Bg7 Ne3 Qf8 Ra8 Nd8 b8Q Kc6 Rb3 Rg8 Kh5 Be6 Qbb4 Nb7 Qd3 Qd8 Qbd2 Qd6 Re8 Qb8 Rf3 Rg3 Rb2 Bd5 Ng4 Rgf8 Re3 Bg2 Rf3 Bh3 Rb3 Ne7 Qf5 Nd5 Rb2 Rh1 Rfb3 Rd1 Nd3 Rb1 Qc1 Rg8 Bd2 Rgf8 Bb4 Rg8 Qcf4 Ne3 Ra3 Rgf8 Bd2 Rg8 Rb5 Nb3 Re7 Rd8 Re8 Rc8 Rh8 Re8 Rf8 c1B Rg8 Ra7 Ba5 Bd2 Bb4 Ra4 Be7 Ba5 Bf8 Bc7 Rb4 Ra5 Q4e4+
1r5b/4KP1r/qN1P2b1/bB1Bp3/rN6/1n2p1b1/2Q2nkN/QR1Rn1b1 b - - 0 1 legal: proof: g4 d5 c4 dxc4 e4 g5 b3 f5 Ba3 fxe4 Bd6 b6 a4 b5 h4 gxh4 Bg3 hxg3 axb5 Ba6 Qc2 Bb7 Qd1 Bc8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 c5 f4 a5 d4 h5 b6 g2 b4 a4 f5 e3 f6 Ke4 b5 c3 d5 a3 f7 c4 b7 c2 b6 c1N Ra2 h4 Re2 c3 Re1 h3 Qb3 a2 Bc4 a1B Qc2+ Nd3 Qa2 c2 Qa3 c1B Nf3 Na6 b8Q h2 b7 Nac5 Qc7 Nh6 b8N Ra4 Na6 Qd6 Bb5 Nb3 Qc2 Bd2 Rhg1 Ba5 Nb4 Be5 Qa1 h1R Na3 Qa6 d6 Bf5 Rb1 Bg3 Rgd1 g1B Nc4 e5 Kf6 Bg7+ Ke7 Rb8 g5 Bh8 g6 Ng4 g7 Nf2 Nb6 Rh7 Nh2 Kf4 Qa3 Ne1 Qa1 Rh4 g8B Be4 Nf1 Kf3 Nh2+ Kg2 Bh7 Rh3 Bf5 Rh7 Be6 Bg6 Bd5+
b1BRr1Q1/K1N1BR1b/nr2qpP1/n7/k4q2/6pP/2bQ1b2/N1q2b1B b - - 0 1 legal: proof: f4 e5 b4 exf4 d4 h5 g4 c5 e3 cxd4 a3 g6 g5 b5 Qg4 hxg4 a4 f3 axb5 Rh7 Ra6 Rh3 Rf6 Rh8 Rf5 gxf5 Bd3 f4 Bc4 Qe7 Bf1 Qd8 Kf2 a5 c4 d5 e4 Kd7 b6 Kc6 h3 f6 e5 d3 c5 Kb5 b7 a4 c6 a3 e6 a2 e7 a1Q e8R d4 c7 Bf5 c8B Na6 b8Q+ Ka4 b5 d2 b6 d1B b7 d3 Qd6 d2 b8Q Qd7 Ba3 Bdc2 Rd8 d1B Qd2 Ne7 Bg2 Bh7 g6 Nc6 Be7 Na5 Na3 Qc1 Nb5 Qe6 Nc7 Bh6 Ne2 Re8 Nd4 g3+ Kf1 f2 Nb3 Be4 Na1 Bdc2+ Ke2 Ra7 Bf3 Rb7 Rd1 Rb6 Bh1 Bf8 Rd7 f3+ Ke3 f1B Kd4 f2 Rd8 Ba8 Re1 Nb4 Kc5 Bh6 Re4 Be3+ Red4 Bc4 Rd7 f1Q Rd8 Bf2 Rd7 Be1 Rd8 Qf4 R4d7 Bf3 Qa8 Bf1 Qad5 B3g2 Qc4 Ba8 Qcd5 Qeg4 Qg8 Bf2+ Qd4 Qe6 Bd6 Bd5 Rf7 Ba8 Be7 Rd6 Qe3 Nbc6 Kb6 Nb4+ Ka7 Rb6 Qe2 Na6 Qd2
bqQ5/1n1nk3/1pKn4/2Pr4/2bR1Rq1/1r1n1p2/Q1N1nP1N/qB1B1R2 b - - 0 1 legal: proof: g4 f5 b4 a5 d4 axb4 g5 c5 e3 cxd4 g6 hxg6 Kd2 g5 Bh3 e6 Bf1 f4 Ke1 f3 Bd2 Bd6 Bc1 Bf4 exf4 Kf7 Bd2 Ke8 Be3 dxe3 h4 d5 a4 g4 c4 g5 h5 b6 a5 e5 h6 e2 Kd2 e1N Ke3 b3 f5 d4+ Ke4 b2 a6 g3 h7 g2 f6 d3 a7 g4 f7+ Ke7 f8R g3 Ra2 d2 Qc2 d1B Rh3 Nf6+ Ke3 e4 Rh1 Nd3 Ne2 g1Q Rg8 g2 Rf8 Bb7 Rh5 Nc5 Ra1 Nbd7 Kd4 e3 Ng3 e2 Rd5 e1N Na3 b1Q Be2 Ne8 Nf1 Qb8 Rf4 Ned3 Nh2 Nd6 Qa2 Rd8 h8Q Bb3 Nc2 Bc6 Qg8 Ncb7 c5 Bc4 Qg4 Qb4 Rf1 Qh1 Bd1 g1N Ke3 Ne2 Rdd4 Rf8 Qh3 Rf5 Qh8 Rd5 Qc8 Nf7 Ke4 Qg1 Rf5 Qg4+ Rf4 Qb2 Qa5 Qa1 Qa2 Qd6 Qc7 Rd8 Qc8 Qb8 a8B Nfd6+ Ke3 Rh8 Rf5 Nb4 Rff4 Rf5 Rg1 Rhh5 Na3 Nd8 Rd3 Rf6 Rdd4 Rg5 Rf1 Re6+ Kd2 Be4 Ke3 Rh5 Bd5 Ree5 Bg8 Rhf5 Bh7 Ba8+ Kd2 Rg5 Bb1 Re3 Nc2 Ra3 Ne1 Nd3 Ke3 N8b7 Nc2 Nf5+ Ke4 Rb3 Qa6 Bb5 Kd5 Bc4+ Kc6 Nfd6 Qa3 Rd5 Qa2
Rn1Q1nN1/2Pqb2p/3qr3/nnP2QR1/q1n1r2B/b4K2/1p1R4/1k2BN2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 h5 fxe4 h6 c5 Be2 c4 Bg4 gxh6 Rh2 h5 Rh1 h4 Be6 Ra4 Bd5 Ra3 Bc6 Ra5 Ba4 Ra8 Bb3 cxb3 c4 b6 c5 Ba6 d3 Bc4 dxc4 Qc8 Nc3 Qc7 Nb1 Qd8 Ke2 Kf7 g4 Kf6 a4 Ke5 f3 d5 g5 d4 a5 b2 c6 e3 c5 d3+ Ke1 Kd4 f4 e5 c7 h3 g6 h2 g7 e2 Kf2 e1Q+ Kf3 b3 a6 e4+ Kg2 b5 a7 d2 f5 Kd3 f6 b4 f7 e3 Nc3 b1N Ra4 b2 Qg4 Kc2 Qf4 d1N Nd5 e2 Ra2 b3 Qh4 Qa5 Ra4 e1B Bg5 Ne3+ Kf3 Nd2+ Kf4 b1N Nf6 b2 Qh3 Ne7 g8Q Nc3 Ng4 Nb5 Qh5 Nb3 Nf6 Qd7 Bh4 Nc4 Ne2 Bb4 Rg1 h1Q Ng3 Qh2 Kf3 Ba3 Nf1 Qhd6 Rg5 Kb1 Be1 Ng6 Rb4 Be7 Qd8 Rf8 Ng8 Re8 f8B Qa4 Bg7 Nba5 Bf6 Nf8 Rb3 Na6 Rd3 Rb8 a8R Rb6 Rd2 Nb8 Kg2 Qe5 Qg4 Re6 Kf3 Qed6 Qf5+ Re4 Bg7 Bf6 Bh6 Re6 Bg7 Be7 Bd4 Na6 Bdf2 Nb8 Bh4
1n1BBnQ1/PN6/nQ2b2K/2Npp3/3RrR2/2n2Pb1/kQ6/q1n1rq1b b - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 g5 h4 gxh4 exf5 a6 b5 axb5 Qd3 bxc4 Qd1 c3 Ke2 Kf7 Kf3 h5 Kf4 b5 Kg5 b4 g4 h3 a4 h2 a5 d3 f3 c2 f6 Ke6 a6 Kd5 a7 Kc4 f7 Kb3 Bd2 d5 Ra6 h4 Ra5 h3 Be2 Be6 Na3 Ka2 Kg6 c1N g5 b3 Qc2+ b2 Ra4 Qa5 Qd1 b1Q Rd4 Nf6 Nb5 Rh4 Nd6 Nfd7 Nb7 Re4 Qf1 Qab5 Qf2 Qa1 Ba5 d2 Bd8 d1N Kh7 Bg7 f8Q Be5 g6 Nc3 g7 Bg3 Qh8 Nf8+ Kh6 Qd3 g8Q Qd1 Qf6 Qf1 Qe5 Bc8 Qd6 Re3 Rc4 Nbd7 Bd3+ Re2 Bc2 Re1 Ne2 e5 Qde6 Rb8 Nd6 Rb4 Nb7 Nb8 Qeb6 Be6 Nf4 Ra4 Rd4 Rb4 Rd1 Rbe4 Qd2 Nd3 Qe2 Nc5 Rd4 Nca6 Qd2 Bh4 Rg1 h1N Rg4 h2 Nd3 Bg3 Rf4 Nf2 Ndc5 h1B Qc1 Nd3 Ba4 Qb2 Be8 Qa1 Qe3 Nc1 Qe2+ Ka3 Qeb5 Ka2 Qb2+
2QbbqnB/2b1BP1k/7P/nN3pRK/6Q1/b2rp1R1/2q2nB1/r3Nr2 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 f4 Rh7 e4 Rh4 e5 Rh8 e6 fxe6 f5 Rh5 f6 Rh6 Qf3 Rh8 Qf5 exf5 Kf2 Kf7 Kg3 Kg6 h4 e5 c4 a5 b4 d5 f7 a4 b6 a3 c5 a2 h5+ Kh7 c6 g5 b7 e4 c7 e3 h6 d3 b5 d2 b6 d1Q Bg2 d4 Bb2 d3 Nh3 d2 Re1 Qc2 Be4 d1N Bd3 Ba3 Nf2 Nc6 b8B Qf8 b7 Na5 Bf6 Bd7 c8Q Be8 Nc3 Ra7 Rb1 a1B Be7 Ra8 Nb5 Bf6 Be4 Ra7 Bc5 Bd8 Nd3 Nf2 Be5 Ra6 b8Q Ra8 Kg2 g3 Rg1 g4 Be7 Ra6 Ne1 Rd6 Rh1 Rd1 Rh3 Rd3 Kg1 g2 Kh2 g1R Bg2 Rh1+ Kg3 Rf1 Kh4 g3 Qb6 Qe2 Qd4 Qc2 Bf3 g2 Kh5 g1B Bg2 Bh2 Qg4 Bg3 Ba1 Bf4 Rg3 Bfc7 Rc1 Qa4 Rc6 Qc2 Rg6 Bc1 Nf3 Nb3 Bh1 Qg7 Rg5 Nf6+ Kh4 Rg8 Qe4 Qf8 Rg2 Rg7 R5g4 Ng8 Kh5 Re1 Baf6 Rg6 Bh8 Ra6 Rg5 Rf1 Qg4 Ra1 Rg3 Na5 Bg2 Ba3 Ne1
nKQ4B/2P3Q1/4Np2/2knq1bR/b4RN1/2B3B1/1n1pPr1b/n1rnb3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Kd6 Ke4 a5 c4 g5 h4 g4 b4 f6 b6 d3 b7 a4 h5 a3 h6 d2 h7 a2 b5 Qe8+ Kd4 Na6 b8B+ Nc7 b6 Bh6 b7 Bg5 Rh4 Qe5+ Kd3 Kc5 Rh1 d5 Na3 d4 Qe1 d1N Rb1 a1N Nf3 g1B Nh2 g2 Rb4 g3 Bd2 Bf2 Qg1 Bd7 Nb5 Ne7 Bc3 Ned5 Ng4 Be1 Rh5 Rc8 h8B Ra3 Ra4 Na8 Nc7 Be8 Rb4 Ba4 Ne6+ Kc6 Qf2 g1B c5 g2 Kc4 d3 Qg3 d2 Bc7 Bh2 b8Q g1N Qg2 Qe3 Bg3 Nf3 Qg1 Rc7 Qc8 Qe5 Qg2 Qd6 Qg1 Ne5+ Kd4 Qe7 Rc4 Kb5 c6 Nd3 Ke4 N3b2 Qg2 Ra7 c7 Ra6 Kf5 Rc6 Rf4 Rc4 Nf8 Qc5 Ke6 Qe3+ Kd6 Qe5+ Kd7 Rc6 Ne6 Kb6 Bb4 Rf3 Bc3 Rf2 Qe4 Nc4 Qh7 Ncb2 Qg7 Kb5 Qe8 Kb6 Kc8 Rc4 Kb8 Rc5 Bb4 Rc1 Qc8 Kc6 Bc3 Kb5 Nd8 Kc5 Ne6+
1r5B/2PRN1Rb/1QP2K2/3Bpn2/3n1r1n/3krp1q/bN1B2Q1/3n2nr b - - 0 1 illegal: No proof kernel
qq1b4/PR1R1n2/3NPb1q/q1NkQr1n/1p4r1/1qQK1p2/B4B2/2q2R2 b - - 0 1 legal: proof: f4 a5 d4 c5 b4 axb4 f5 cxd4 f6 exf6 g3 f5 Bb2 f4 Ba3 Ra4 Bc1 Ra8 h3 fxg3 Qd2 g5 Qd3 g2 Qd1 g4 Nc3 b6 Qd3 g3 Nb1 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Qc8 Ba3 Qc7 Bc1 Qd8 Kd2 Ke7 e4 Kd6 c4 f5 a4 h5 a5 b3 g5 b2 g6 f4 a6 h4 a7 d3 g7 f3 Rh3 b5 Ke3 d2 Be2 Nf6 g8R Qa5 Qf1 d1Q Bd3 Qb3 Qe2 Nh5 Qf1 Be7 Kd4 Bf6+ Ke3 Nc6 Qe2 Nd8 Qc2 Nf7 Ne2 Rf8 Nbc3 b1Q Rg7 Rhg8 Nf4 g1Q+ Qf2 g2 e5+ Kc6 c5 d5 e6 d4+ Ke4 b4 Qe3 Qh2 Nb5 g1B Nd6 Bf2 Bd2 Qc1 Bc4 d3 Be1 d2 Nd3 d1Q Rh7 Bg1 Bf2 Rg4+ Qf4 Qg3 Rh1 Bh2 Rf1 h3 Ra2 Bg1 Rd2 h2 Ke3 h1Q Qe5 Qbc2 Ba2 Qb3 Rg7 Qdc2 Rh7 Qcc4 Rg7 Qcb5 Rh7 Qb8 Rg7 Qa8 Rh7 Kc7 c6 Kb6 c7 Kc6 Qf4 Bd8 c8Q+ Kd5 Qc3 Qhh4 Qff6 Qg5+ Qf4 Qh6 Nc5+ Kc6 Kd3 Kd5 Be1 Bd4 Bf2 B4f6 Rdd1 Nh8 Rb7 Nf7 Qe3 Qgf4 Nf5 Qfc7 Nd6 Qcb8 Qe5+ Kc6 Qg3 Ng5 Nb5 Rg8 Qe5 Nf7 Rd2 R4g5 Ke4 Rf5 Rdd7 Rg4+ Kd3 Rg3 Qf4 Rg4 Nd6 Kd5 Qe5+
R4b1R/1N2k1b1/BN2B1Pn/1PQ1r1qn/2K1b3/2p2nnQ/4r2p/1R2q1b1 b - - 0 1 legal: proof: e4 b5 a4 e5 h4 g5 b3 gxh4 Ba3 d6 Bc5 d5 c4 dxc4 f4 exf4 Be3 fxe3 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 Ke2 h5 d4 f5 g4 a5 d5 c5 b4 c3 Kd3 h3 g5 e2 e5 e1N+ Kc4 a4 g6 h2 d6 f4 d7+ Ke7 b6 a3 e6 f3 b5 a2 b7 h4 Bg2 f2 Qf3 f1Q+ Kb3 c2 Qd1 c1B Qf3 h3 Ne2 Nh6 Nbc3 Be3 Ne4 Bg1 Rb1 a1B Nf4 Ra2 Nd6 Re2 Kc4 Bag7 Qe3 Nf3 Qb3 Qc7 d8R Nd7 b8Q Bb7 Qc8 Be4 Nb7 Qe5 Qc7 Qh5 Ra8 Qe1 Qc8 Qg5 Qe3 Kf6 e7 Rg8 e8B Ke7 Qd3 Nf6 Bd7 Nh5 Be6 Rh8 Qc3 Rh7 Nd3 Rh8 Nb2 Rg8 Na4 Rh8 Kb3 c4+ Kb4 Rg8 Nb6 Rh8 Qd2 c3 Kc4 Bc5 Qe3 Bcd4 Rg1 h1N Qc6 N1g3 Qc5+ Kf6 Rf1 h2 Bgh3 Rg8 Bc8 Rh8 Bhe6 Rg8 Qd3 Bg1 Rf2 Bd6 Qde3 Ke7 Rf1 Re8 Qd3 Nd4 Rf8 Nf3 Rg8 Rf8 Qde3 Rf5 Rh8 Re5 Qd3 Ra2 Qf1 Re2 Qh3 Kf6 Na5 Be7 Ba6 Bef8 Qd4 Ke7 Nb7 Bf5 Qf2 Be4 Qc5+
1qb1b1Q1/rB1RQPrp/b4B1N/8/k1Pr2n1/N1p3q1/2r1b2R/3n2BK b - - 0 1 legal: proof: h4 c5 b4 cxb4 e4 f5 a3 fxe4 h5 b3 h6 b2 Ke2 gxh6 Ke1 h5 Bd3 h4 Bb5 Nh6 Bf1 Ng8 c4 b5 Rh3 d5 Ke2 b4 Rh2 d4 Ke1 b3 Qf3 Bg7 Qc3 dxc3 Rh1 Be5 Nf3 Bd6 Ng1 Bb4 axb4 Qd7 Rh2 Qd6 Rh1 Qd8 f4 Qc7 Kf2 Kd7 d4 Kc6 g4 a5 Kg2 e5 d5+ Kb6 g5 e3 d6 e2 b5 e1Q f5 a4 d7 Ka5 d8B e4 f6 a3 g6 e3 b6 e2 g7 a2 b7 Nc6 b8Q Ra7 Qb7 Nb4 Qd5+ Ka4 Qb7 Nd5 Be3 Nh6 g8Q Qb8 Qgg7 Rg8 Qg6 Ng4 Bc5 Nde3+ Kf3 Qeg3+ Ke4 e1R Nd2 b1B+ Bd3 b2 f7 Rc1 Ne2 Rd1 Qc7 Ba6 Bf6 Rc1 Nd4 Rd1 Qc8 Rg7 Nf5 Bc2 Qg8 b1B Bb6 Rc1 Bc5 Bd1 Rh2 Be2 Nh6 Bc2 Rb1 a1R Rb7 Bb1 Rc7 Rd1 Qf5 Ra2 Qe6 Rb2 Qe7 Ra2 Nf3 Rdd2 Ne1 Nd1 Bg1 Rab2 Kf5 Ra2 Be4 Rd4 Nc2 Rb2 Na3 Bbd3 Ke6 Rc2 Bf3 Be4 Bg2 Bc6 Kf5 Be8 Bb7 h3 Rg2 h2 Rd7 Rd3 Ke4 Rd6 Ba8 h1B Bd5 Qe1 Kf4 Qh4 Rh2 Bc8 Ba8 Bc6 Bb7 Bb5 Ke4 Ba6 Kf4 Bd3 Kf3 Be2+ Kg2 Qg3+ Kh1 Rd3 Bh4 Rd4 Bf6
3k3r/3r4/p2b1Q1N/3b2BK/1bB5/PQ1qQ1P1/2bb2rp/RRb1Nb1n b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 f4 h5 Kf2 c5 b4 d5 b5 e5 b6 e3+ Kf3 c4 f5 d4 a3 e4+ Kf4 c3 f6 e2 Kg5 e1B b7 d2 Rh2 c2 Bb5+ Nc6 b8Q a6 Qg4 d1B Bf1 d3 Qf3 h3 Qe2 d2 Nf3 h4 Bb2 c1B Bc3 e3 Qc7 Nb4 Qd6 Nd3 Qb4 Bc2 Ra2 d1R Nbd2 Nf2 Ne5 Qd3 f7+ Kd8 Ra1 Nh1 Qb3 Bd6 Ng4 Nf6 Nf3 Bed2 Nh6 Bg4 Qf2 e2+ Qe3 e1B g3 Ra7 Rg2 h2 Rg1 h3 Rb1 Bd7 f8Q+ Be8 Be5 Rd7 Bf4 B2b4 Qg7 Rd2 Kh4 Rg2 Bg5 Bed2 Ne1 Bf7 Ra1 Bd5 Be2 Qg6 Bb5 Bc4 Rb1 Bf1 Bc4 Qd3 Qf7 Nf2 Qb2 h1B Qd5 Rh2 Qb5 Bd5 Qa4 Rg2 Qab3 h2 Rh1 Kc8 Rg1 Nh7 Kh5 Nh1 Bf4 Kd8 Ra1 Bb1 Bg5+ Nf6+ Kh4 Bc2 Nf3 Be2 Rd1 Bf1 Ne1 Bf7 Qbd4 Bb2 Rdb1 Bbc1 Qdb2 Kc8 Qa4 Bd5 Qab3 Ng4 Kh5 Kc7 Bf4 Kd8 Bg5+ Nf6+ Qxf6+
2b1NR2/1b1Q1P1p/brq5/3kqBK1/2qnNQ2/np1R2b1/P3bB2/1b3N2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 h4 g5 c4 gxh4 Bh6 b5 Be3 b3 Bc1 b4 Bd3 Ra5 Bf1 Rb5 cxb5 Qc7 Qe2 Qb6 Qd1 Qd8 Kd2 Kf7 f4 Ke6 g4 d5 g5 h3 b6 d3 Ke3 h2 b7 d2 g6 b2 g7 d4+ Kf2 b3 Kg3 d3 Kg4 e3 f5+ Kd5 Qe2 d1B Nd2 b1B Bb2 e5 Bc3 e4 Qf3 e2 Bf6 e1Q Ne2 Nc6 b8N Qd7 Bd4 Nb4 Kg5 Nh6 f6 Nc2 f7 Nf5 g8Q Na3 Qe3 Qc6 Be5 Nd4 Na6 Bd6 Ng3 Be2 Rg1 h1B Qd8 Qec1 Qf4 e3 Bh3 Q1c4 Ndf1 d2 Ne4 d1B Qd7 Bed3 Bf5 e2 Rg2 e1Q Rd2 B3e2 Rd3 Re8 Bf6 Re6 Bd8 Bdc2 Bb6 Qa5 Nac5 Rf6 Ne6 Bhf3 Ng7 Qe1 Rd2 Bcd3 Ne8 Qg3+ Qg4 Qe5 Qf4 Qb4 Rd1 Bda6 Rd3 Qbc4 Bc5 Bc2 Re1 Bb1 Red1 Qb6 Qd2 Qh2 Re1 Bd1 Ng7 Ke5 Nc3+ Ne2 Ne3 Bfb7 Nf1 Qc7 Be3 Nd4 Bg1+ Qe2 Bf2 Qe4 Ree3 Be2 Na4 Qb6 Nc5 Kd5 Qc1 Qe8 Re6 Qh8 Re8 Qbb5 Ne4 Qbc5 Qe7 Bg3 Qf4 Rb6 Rf8 Qc6 Ne8 Qe5 Qd7+
3BKN1r/5n2/Nr4Qn/pprb1RQr/3Bn1k1/2P3nq/3P1n2/2q1QR2 b - - 0 1 illegal: No possible last move, all moves rejected
1K4n1/2B5/2RPP1n1/1pQ1Nn2/qQqB2pn/q3r1q1/Nqb5/k1rR2R1 b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 h5 Bg2 f5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qb3 Ra5 Kc2 Bf4 gxf4 Qe7 Kb2 Ra6 Qd1 Ra8 Kc2 Qd8 h4 Kf7 e4 Kf6 a4 f1Q d4 g5 h5 c5 f5 b5 a5 b3+ Kc3 g3 h6 f2 a6 b2 a7 g2 h7 g4 d5 Ke5 d6 Qh4 f6 Nc6 f7 Qg3+ Qd3 Bf5 f8Q Qd1 Qe3 f1N Nd2 b1Q Nh3 g1N Bb2 Qa4 Nb3 Re8 a8R Nce7 Ra6 Nf3 Ng5 Nh4 Rc6 Neg6 Rg1 Qba2 Bc1 Q2a3 Bd2 Rc8 Rd1 Re8 Kc2 c3 Kd3 c2 Ba5 c1Q Bc7 Qcb2 Qf7 Re7 Qc4 Re6 Qb4 Re8 Qf3 Ne3 Qf2 Rc8 Qc2 c4+ Ke2 c3 Kd3 Qa8 Nc1 Q8a4 Na2 Re8 Qcb3 c2 Qc5+ Kf4 Nf7 c1Q Qbc3 Rc8 Qb4 Kf3 Kd4 Ke2 e5 Bc2 Kc5 Nef5 Kb6 Qcf4 Kb7 Qc4 Rc1 Re8 Qc5 Re7 Qa5 Kd3 Kb8 Re6 Nb4+ Kc3 Rcd1 Qbb3 Na2+ Kb2 Qab4 Re7 Nc1 Ka1 e6 Qbb2 Bd8 Rc7 Ne5 Nf6 Qe3 Rf8 h8B Ng8 Qec5 Ng7 Ned3 Rf3 Ne5 Ngf5 Bg7 Re3 Bh8 Rh7 Bc7 Rg7 Nf3 Rd7 Bd4 Rg7 Ne5 Rh7 Ba5 Rc7 Na2+ Bb1 Ra6 Qe2 Qa7 Rc1 Qac5 Bc2 Bc7 Qc4 Rc6
N1QRqQ2/2rrr1nP/K1RBkn2/1p4NQ/3q3n/5B2/p4P2/r1b1n2r b - - 0 1 legal: proof: b4 f5 d4 h5 g4 hxg4 e4 fxe4 a4 c5 a5 cxd4 a6 Qb6 Bc4 Qb5 Bd3 b6 Bf1 Bb7 axb7 Qxb4+ Bd2 Qb3 Bc1 Qb2 Ke2 Kf7 h4 e5 h5 d5 h6 a5 h7 g5 Ra3 g3 Be3 g2 Bf4 g4 Nc3 d3+ Ke3 a4 Rh5 g3 Qf3 d4+ Kd2 e3+ Ke1 b5 Nge2 g1R Bh6+ Ke6 Bg7 d2+ Kd1 g2 Rg5 e4 Ra1 a3 Rh5 a2 Nd5 Na6 b8Q Nc7 c4 Ba3 c5 Rh1 c6 g1N Nc1 Nf6 Bf8 Ra7 Nb3 Nce8 c7 Ng7 Bd6 Re8 Rh6 Re7 Qh5 Nf3 Nb6 Nh4 c8Q+ Rad7 Ke2 d1R+ Nd2 Rc1 Bg2 Rc7 Bf3 Qb4 Re1 Bc1 Na8 d3+ Kd1 Qc3 Qf8 Qa1 Qbc8 Qd4 Rg1 e2+ Ke1 Rh3 Rg5 Rh2 Rd5 Rh1+ Nf1 Ba3 Kd2 e1N Ng3 Bb2 Ne2 Ba3 Ng1 Bb2 Nh3 e3+ Kd1 e2+ Kd2 Qc4 Ke3 d2 Rd3 d1R Rd4 Ra1 Ng5+ Kf5+ Kd2 Rf7 Ke3 Bc1+ Rd2 Qa4 Rg6 Qd1 Kd4 Re7 Rh6 Rb7 Kc5 Rc7+ Kb6 Qa4 Nh3+ Ke6 Rd1 Qd4+ Ka6 Neg2 Rd3 e1Q Rd2 Qee3 Rg6 Ne1 Ng5+ Kf5 Rc2 Qe6 Rc6 Qf7 Rh6 Qe8 Rg6 Ne6 Rg8 Ng7 Rh8 Qg6 Qfe8 Qf7 Rf8 Qg8 Qef7 Qh8 Rd8 Qe8 Bb4 Ke5 Qf8 Kf5 Bc5 Ke5 Bd6+ Kf5 Nh3+ Ke6 Ng5+
5N2/r1Pbn1bp/1r1bN1R1/1b1Qb3/1qqR4/pk2Q2P/1B1r4/1r1BB1K1 b - - 0 1 illegal: No possible last move
Rb1B1rn1/3B4/3b2K1/2b3N1/rb1p1bk1/N1QPQ1P1/2bp2N1/1q1r2rR b - - 0 1 legal: proof: g4 c5 e4 h5 b4 f5 b5 fxe4 b6 c4 d3 c3 Qd2 cxd2+ Kd1 axb6 Ke2 b5 Ba3 b4 Bb2 Ra4 Bc1 Ra8 Kd1 hxg4 Ba3 g5 Bb2 g3 Bc1 g4 Ke2 g2 Ke3 g3 Kd4 Nc6+ Kc4 Nd4 Ne2 Nf5 Kb3 g1B Kb2 g2 Ng3 Nf6 Ne2 Ng3 fxg3 Ng8 c4 Kf7 Kc2 Kf6 h4 Kf5 a4 e5 h5 b5 a5 d5 c5 b3+ Kc3 e3 h6 b2 a6 e4 Kd4 b4 h7 b3 a7 Bd7 c6 Qb6+ Kc3 Kg4 c7 Bd6 c8N Ba4 Nd4 e2 Nc6 e1B Nd4 e3 Ne6 e2 Ra2 Bgc5 Ng5 g1B Ne7 Bef2 Ng6 e1B Nf4 Bfe3 Ng2 Be1f2 Na3 b1R Bb2 Bef4 Ra1 Rf8 a8Q Rd1 Qe8 Qb8 Qe3 Bb4+ Kd4 Qb5 Bc3 b2 Ra2 b1R Ra1 Bb8 Ra2 Bb4d6 Ba5 Bc2 Bb6 Ra1 Bd8 Qb1 Be2+ Kf5 Bh5 Bb4 Be8 Kg4 Nc4 Bfd6 Ra8 Ra4 Na3 Bf4 Bb5 Ba5+ Kc5 Bb4+ Kc6 Bb4d6 Kd7 Bb4 Ke6 B8d6 Qe1 Ba7 Bd7 Bgc5 Qe3 Bab8 Bc6 Re8+ Kf7 d4 Kg6 Nf6 Bb5 Rhf8 h8Q Ng8 Qhe5 Re7 Qd5 Ree8 Qc4 Re5 Qc3 Rg1 Qf2 Ree1 Qe3 Rd1 Bd7+
R2r1k2/1Bn1b3/2n1Br1p/r2r1pq1/1QK1P1R1/6Np/QNP3n1/2rR3b b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 cxd4 b5 e5 Bd2 exf4 Bb4 axb4 a5 b6 axb6 Ra4 Nc3 Ra6 Nb1 Ra8 Kd2 d5 Kd3 h3 g4 b3 g5 h6 e3 b2 b7 f3 g6 f2 b6 Be7 g7 Nc6 b8R Nf6 g8B Bb7 Nd2 b1R Ra2 Kf8 Be2 f1R Rc8 Rc1 Ra5 Ne8 Ra4 Rf6 Nc4 Nc7 Nb2 Ra5 Bf3 Ba8 Ne2 Bb7 Kd2 d3 Kc3 d4+ Kc4 d2 Ra8 d3 Qe1 d1R Qb4 d2 Ng3 Rd6 Bg2 f5 Be6 Rdd5 Be4 Rg8 Qa3 Rg6 Qa2 Rf6 Rf1 Re1 Bg2 d1N Rb4 Re2 Re1 Red2 Be4 Nf2 Rd1 Nd3 Ra4 Ne1 Bf3 Bc8 b7 Ng2 b8Q R2d3 Qb5 Bb7 Qb4 Qe8 Bc8 Qg6 Be4 Rd8 Bd5 Qg5 Bg8 Na7 Bge6 Bf3 Bb7 Nc6 e4 Rdd5 Ra3 Nf4 Rb3 Bh1 Rf3 Ng2 Rf4 Rg6 Rh4 Rf6 Rg4
K4bQ1/Qp1Bb2n/2n4q/4nPR1/2k3rN/1Np4p/n1P2BBR/b2r3n b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 h3 g5 a3 bxa3 Bc4 g3 Ba6 g4 Bf1 g2 Rh2 g3 Rh1 Bg4 hxg4 Qd4 Nf3 Qd5 Ng1 Qd8 Ke2 Kd7 Ke3 Ke6 f4 Kd5 d4 e5 f5 h5 g5 c5 g6 a2 g7 c4 Bd2 c3 Bb5 h4 Bd3 h3 Na3 Rh4 Qh5 Qg5+ Ke2 e3 Rh2 e4 Qh7 Nc6 Nb1 Rd8 Bb5 Nf6 Nf3 g1B Be1 g2 Bf2 Qh6 Nbd2 Rg4 Nb3 Rd7 Re1 a1B Nh4 Rd6 Ba4 Kc4 g8B+ Rd5 Qc7 Nh7 Qa5 Be7 Rb1 Bf8 Qa7 Be7 Ke1 e2 Be6 Bf8 Bd7 Rd6 d5 Be7 Bg3 Bc5 Bf2 g1N Rd1 Ba3 Rd3 Bc5 Rg3 Bb4 Bb6 Bf8 Kf2 e1N Be3 Ne2 Rg1 Ne5 Bac6 Nc1 Bb6 N1f3 Bd4 Qh5 Ke3 Na2 Bb6 Nd4 Rgg2 Rgg6 Rg5 Qh6 Kf4 e3 Ke4 Rde6 d6 e2 Ke3 e1N Bg2 Ba3 Ke4 Ndc6 Bf2 Kb5 Kd5 N1d3 Bc8 Re8 d7 Bae7 d8Q Rg7 Bd7 Rg8 Bd4 Nf2 Qda8 Nh1 Bf2 Rd8 Q8b8 Bf6 Ke6 Kc4 Qc8 B8g7 Kd6 Bf8+ Kc7 B6e7 Qcb8 Rg6 Qba8 Rd6 Kb6 Rd4 Kc7 Rg4 Qc8 Ncb4 Kb8+ Nbc6+ Ka8 Nf3 Be8 Rd1 Bd7 Ne5 Qcb8 Bg7 Qh8 Bgf8 Qg8+
1Rn2N2/1ppNb1n1/bPpn4/1q2Br2/6KP/1r1Qr3/n1B4Q/k3Bn1R b - - 0 1 legal: proof: e4 h5 g4 f5 exf5 Rh6 c4 Rh7 c5 Rh8 c6 dxc6 b4 hxg4 d4 a5 b5 e5 Qb3 exd4 Qb4 axb4 Ke2 Ke7 a4 Kd6 f4 Kd5 h4 Kc4 a5 Kb3 a6 g5 f6 g3 Kf3 d3 f7 d2 f5 d1N b6 g4+ Kf4 g2 a7 g3 f6 Nb2 Ba6 Nd7 Kg4 Nc4 Ra5 Nc5+ Kf3 Bh3 Bh6 Kb2 Nd2 b3 Bg5 Ne7 Ne4 Rh5 Nf2 Nc8 Kf4 Qd3 Ne4 N4d6 Nf3 g1N Ne5 g2 Nd7 Be7 f8B Nf3 f7 g1R Nef6 Qb5 Nh7 Bf1 Bf6+ Re5 B8g7 Nh2 f8Q Rg5 Qd8 Rf5+ Kg3 Ne6 Nhf8 Bd3 Ra4 Nf1+ Kg4 Kb1 Ra5 Re3 Bc3 b2 Bge5 Ng7 Be1 Bc4 Ra3 Rb3 Ra4 Rb8 a8Q Bd3 Rf4 Ka1 Rd4 b1N Qa7 Qb4 Bb5+ Qa5 Ba4 Qb5 Qa5 Ra8 Qd2 Nc3 Qh2 Na2 Rd5+ Rc3 Bc2 Ra3 Rd4 Rab3 Ra4 Qd5 Ra8 Ba6 Rb8 Qb5 Qe8 Nd2 Qg6 Nf1 B5g3 Re3 Qh7 Rd5 Qd3 Rf5 Be5+
rq2qN2/1q2Nn2/1B1r1Q2/2rP1R2/1pnQ3B/1k1p4/1R1p1K1P/b2b2Nq b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 e4 f5 Qe2 d5 Qd1 d3 Bg2 d4 Bf3 Qd5 exd5 Nh6 Bg2 Ng8 Be4 fxe4 c4 Kd7 a4 Kd6 f4 Kc5 a5 g5 f5 b5 f6 e5 f7 g3 a6 d2+ Kf1 d3 a7 b3 Kg2 Kb4 c5 e3 c6 e4 c7 e2 Qc2 e1R Qd1 g4 Na3 b2 Nc4 b1Q Na3 e3 Nf3 e2 Rg1 Nh6 Qc2 Bg7 Qa2 Rd8 f8B+ Rd6 Rh1 Nc6 Bb2 Ne5 Bd4 Nhf7 Nc4 Rc1 Be7 e1Q Qa6 Kb3 Nb6 Rc5 Bh4 Nc4 Ra2 Qe8 Ng1 b4 Bf2 Ba1 Nd7 Qbe1 Nf8 Q1e7 Qb6 Be6 c8N Qb7 Be3 Bf5 Kf1 g2+ Kf2 Bd7 Qd8 Ba4 Qf6 Qb8 Ne7 g3+ Kf3 Rc8 Bb6 Rc5 Nh3 Qb7 Rf1 g1Q Qd4 g2 Rb2+ Ka3 Qf6 Qh1 Kf2 Bd1 Ng1 Ka4 Rc2 Kb3 Ra2 Rad8 a8Q Qb8 Qc6 Qb7 Qd7 Ra8 Qg4 Qeb8 Qgd4 Qe8 Kg3 Qbb8 Rf5 Qb7 Ne2 g1Q+ Kh3 Rdc6 Rc2 Qg5 Ng1 Qf4 Ra2 Qfc7 Rc2 Qcc8 Kg3 Qcb8+ Kf2 Rd6 Rb2+
1B1NR3/1BkN1nR1/Qn5r/pn1bq1r1/nqp1rP2/1b2QP2/2Np4/5K2 b - - 0 1 illegal: No proof kernel
1RKnQb1N/1N2b2k/1qP2pr1/5P2/b2Q4/3n4/p1RN1pqB/b1r3nB b - - 0 1 legal: proof: d4 h5 a4 b5 axb5 c5 Qd2 cxd4 Qd3 Bb7 Qd1 Bc8 g4 hxg4 f3 Qb6 e3 dxe3 Qd4 Qd8 Kd1 Ba6 Qd2 Bc8 Qf2 exf2 Kd2 g5 Kc3 d5 Kb4 a5+ Kc5 d4 c4 g3 b4 d3 h4 d2 h5 d1Q f4 g4 h6 g2 h7 g3 f5 a4 b6 e5+ Kb5 e4 c5 e3 b7 e2 Nc3 e1B Ra3 Nh6 Ra1 a3 Rh3 a2 Ne4 Ng4 Rb1 Q1d5 Bf4 Rg8 h8N Ne5 Nf3 g1B Rh2 Rg6 Nfd2 Nbc6 b8Q Bd7 Bg2 Nd3 Qa7 Rc8 Ka6 Be7 Kb7 Kf8 b5 Kg7 b6 f6 Bh1 g2 Rh4 Bh2 Nd6 g1N Rb2 Kg8 Rc2 Qg2 Qa4 Bf8 Qd4 Be8 Rg4 Kh7 Be5 Bf4 Rh4+ B4h6 Bh2 Be7 Rg4 Bhf8 Rg3 Nb2 Ra3 Bd7 Ra8 Nd3 Rb8 Be8 Ka8 Qc7 b7 Nd8 Ka7 Ba4 c6 Qb6+ Ka8 Rc7 Rc8 Rd7 b8Q Bg7 Nb7 Bgf8 Qbe5 Rd5 Kb8 Rc5 Qe6 Rc4 Qed7 Rc3 Qe8 Rc5 Nb3 Bc3 Nd2 Ba1 Nb3 Rc3 Nd2 Qb3 Kc7 Qb6+ Kd7 Rc4 Rb8 Rc5 Kc8 Rc3 Rb2 Rc1 Rc2
r5r1/2N2R2/1rpBrP2/1q2p1nq/3BP2b/bp1k1BR1/1N1n1Q1K/6nQ b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 a3 bxa3 h3 g5 Bb2 g3 Bc1 g2 Qb3 g4 Qc2 g3 Qd1 Bg4 hxg4 Bh6 Qb3 Bg7 Qd1 Bf8 e4 Kd7 d4 Ke6 f4 h5 g5 b5 g6 h4 g7 c3 Bd3 a2 Be2 c2 Ba3 c1B Qd2 c6 Bd6 h3 Nf3 g1R+ Bf1 b4 Nh4 g2 Kf2 h2 Kg3 b3 Be2 Qb6 Nf5 Ba3 Ne3 Qb5 Nd5 Nd7 Nbc3 Nb6 Rf1 a1R Na4 Nf6 Bf3 Rh6 Qf2 Nh7 Nb2 Nc4 Nc7+ Kf6 g8Q Ng5 f5 Nd2 d5 e5 Nd1 Be7 Nb2 Rb8 Qh7 Rb6 Re1 Rg6 Re3 Rg8 Qh3 Rgd1 Rf1 g1N Rd3 h1Q Qhg2 Qh5 Qh1 N5h3+ Kh2 Kg5 Bb4 Kf4 d6 Bd8 d7 Bh4 d8B Ng5 Bde7 Ra2 Bc3 Raa1 f6 Ra2 Rd7 Raa1 Bd6 Ra2 Qg3+ Ke3 Rf7 Raa1 Nc4+ Kd3 Bd4 Re8 Rf2 Re6 Rg2 Re1 Qf2 Re3 Bg4 Rg3 Bd1 N5h3 Bf3 Rg8 Rg3 Ng5 Bf8 Bb2 Be7 Raa8 Bd6 Ba3 Nb2+
QK4n1/2QNq1BP/3N1Qkp/q3q3/Bb2b1q1/3n3p/2p4P/R1r1r1bR b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 Qa4 a5 Qc6 axb4 Qh6 d5 g4 dxc4 g5 gxh6 g6 h4 Bb2 Qf6 Ba3 Qg7 Bc1 Qh7 gxh7 Ra4 Bb2 Ra3 Bc1 Ra8 Kf2 c5 Kf3 f5 d4 Kf7 e4 b5 a4 c3 a5 h3 a6 c4 d5 b3 d6 c2 d7 b2 d8Q c3 e5 b4 a7 b3 e6+ Kg6 e7 Bb7+ Qd5 Nc6 Qe5 Rc8 a8Q Nb4+ Qe4 Nd3 Na3 b1Q Qa4 b2 Nc4 Qa2 Qb4 b1Q Bb2 c1B Nd2 Qa5 Nb3 Be3 Qc4 Qd1+ Ne2 Bg1 Qed5 Qe1 Ng3 Qe5 Ne4 Rc5 Qdd4 Rc6 Ke2 f3+ Kd1 f2 Ke2 f4 Kf3 Re6 Nc5 c2 Kg4 f3 Nd6 Be4 Nd7 Rf6 Bg2 f1Q Qc7 f2 e8Q+ Rf7 Qec8 Qfe1 Qa8 f1Q Qdb6 Qe7 Bg7 Qfe2+ Bf3 Q2d1 Be2 Rf1 Qba6 Nf2+ Kf4 Qec3 Bb5 Nd3+ Kg3 Qh5 Ba4 Rc1 Q6c6 Nf2+ Kf4 Qce5+ Ke3 Qg4 Qca6 Qeg3+ Kd4 Nd3+ Kc4 Qc3+ Kb5 Qge5+ Qd5 Qd2 Kc6 Qa5 Kb7 Q7f6 Nf5 Bb4 Nd6 Qfe7 Qac6 Nf6 Qa6 Re8 Qa8 Ng8 Qad8 Rf8 Kb8 Rff1 Qa8 Rfd1 Qf8 Re1 Qf6+
1K1Q3R/1Pr1bNqN/Qp5b/P6n/p2R3b/1rpbk3/8/n1rBB1Nq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 d5 cxd5 e5 Ra2 exf4 Ra3 Qg5 Ra1 Qd8 b4 Qd7 a5 Qd6 Ra4 bxa4 b5 Rh7 b6 Rh6 b7 Rh8 Qb3 Qd8 Qb6 axb6 Kf2 Kd7 e4 Kd6 h4 Kc5 h5 Kd4 h6 g5 h7 f5 d6 c5 d3 f3 Kg3 f2 e5 c4 d7 f4+ Kh2 g3+ Kh3 g2 Kg4 f3 Kf5 g4 Ke6 g3 Rh2 Qe7+ Kf5 Nc6 e6 Bh6 d8N Nf6 Bd2 Nb4 Be2 f1Q Nf7 f2 Bg4 Nc2 Rh4 Na1 Be1 Ke3 Ke5 Nh5 d4 Bd7 d5 Bb5 d6 Rac8 d7 Rc7 d8Q c3 Bf3 Bd3 Rd4 Qf8 e7 Qg7+ Kd6 Rg8 Ne2 g1B h8Q g2 Nd2 Re8 Ne4 Bh2+ Nf4 g1B Nf6 Bg3 Bd1 Bh4 Ne2 Qh3 Qf8 f1R Nh7 Qh1 Qh8 Bgf2 Ng1 Bf6 Qa8 B2h4 Qa6 Rf5 Qf8 Rb5 Qg8 Rf8 Qh8 Rb3 e8R+ Re7 Rb8 Rc8 Qd8 Rcc7 Qd7 Re5 Rh8 Rg5 Qd8 Rg2 Qc8 Rc2 Qd8 Rc1 Rf4 Rc5 Rd4 Be7+ Kd7 Rd5+ Kc7 Rd7+ Kc8 Rc7+ Kb8
3N3b/1p3qP1/3Qq1n1/n1RB3k/pP1rb2R/2Q3p1/N1rnq1B1/2Bn2K1 b - - 0 1 legal: proof: c4 g5 g4 e5 f4 exf4 h4 gxh4 a4 d5 cxd5 Nc6 a5 Nb4 Qb3 Na2 Qg3 fxg3 a6 Qd6 Bh3 Qxa6 Bg2 Qd6 Bf1 Qd8 d4 a5 e4 h5 b4 c5 d6 f5 d7+ Kf7 d5 Kg6 d6 a4 g5 h3 e5 c4 e6 h2 e7 f4 Be3 h4 Bc1 h3 Ne2 c3 Ba3 f3 Nc1 f2+ Ke2 c2 Nd2 Nc3+ Kf3 Nd1 Bd3+ Kh5 g6 f1N e8B Bg7 Bc4 Qe7 d8Q Qe6 d7 Ne7 Ne4 Nd2+ Ke2 Qf7 Na2 c1N+ Ke1 Ncb3 Rc1 Na5 Ng5 Rg8 Qc7 Bh8 d8Q Bf5 g7 Be4 Be6 Rc8 Rc5 Ng6 Bc6 Rf8 Qdd6 Rfd8 Bed5 Qe6 Rg1 h1Q Nf7 h2 Bc1 Qf3 Rh1 Rd7 Nd8 Qff7 Rg1 h1Q Ke2 Nf3 Kf1 Qh4 Rh1 Nd2+ Kg1 Qhh3 Bb5 Qg4 Bf1 Qe2 Qcc6 Rcc7 Rc2 Rc8 Qc3 Rc4 Bg2 Rdc7 Qa3 Rd4 Rc5 Rc6 Rb5 Rc2 Qc3 Kg5 Rc5 Qhe6 Rh2 Kg4 Rh4+ Kg5 Rg4+ Kh5 Rh4+
N1K2b2/qrR1BQ2/P1b3nB/3p1rbp/2b5/p1Q1Nr2/qPN2Rb1/2k5 b - - 0 1 illegal: No proof kernel
r2Rb3/R2PQb2/2B5/Kbpr1q1k/2rq2P1/QRp4N/NqB1n2p/4b3 b - - 0 1 legal: proof: h4 e5 c4 a5 b4 axb4 f3 d5 Ba3 dxc4 Bb2 g5 Qc1 g4 Kd1 Nc6 f4 exf4 Bd4 g3 Bf2 gxf2 Qc2 Ne5 Kc1 Nf3 Qd1 Ng5 hxg5 Qd3 Nf3 Qd7 Ng1 Qd8 Kb2 h5 a4 b5 e4 f5 d4 Kf7 d5 Kg6 a5 b3 Kc3 h4 e5 b2 a6 b4+ Kc2 h3 e6 c3 Kb3 h2 Ka4 f3 a7 f4 d6 Ne7 Nd2 b1B Kb5 Nf5 e7 Rh4 e8R Nd4+ Ka4 Kh5 g6 Ba2 g7 Bf7 g8B Bd7+ Bb5 f1B Re2 f2 Qe1 f3 Nb3 Bde8 Rea2 Ne2 Bc6 Rc4 Nc1 b3+ Ka5 b2 Bh7 b1Q Ra4 Be7 Na2 Bh4 Nh3 Qb2 Rb4 Qf6 Rb3 Qd4 Bc2 Bg3 B6e4 c5 d7 Bf4 Bc6 Bd2 Qc1 Be1 Qe3 Ng1 Rb8 Bd3 Qe4 f1R Qe7 f2 Rd8 Ne2 Rb1 Rg1 Ra1 f1Q Rb1 Rb8 a8Q Qf5 Qa7 Ra8 Qa6 Qa1 Rb3 Qb2 Qa7 Bh4 Qa6 Rd1 Rf1 Rd2 Rb1 Be1 Rb7 Qa1 R1b3 Qb2 Ra7 Ra4+ Kb6 Bb5 Qa5 Rc4 Qa3 Qdg4 Ka5 Rd5 Bb1 Qh4 Bc2 Qd4 g4+
1KRb1q1B/PPN3pp/4r1bk/b3Q2n/1Q2q3/1Nn4q/p1Q3Rq/1n2B3 b - - 0 1 illegal: Other
2K5/kpBQQ2N/r1NPpb2/5p2/4b1R1/bR2Pb2/rR1B4/1bb1nrn1 b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 c4 d5 a4 dxc4 a5 c6 a6 h6 a7 Na6 Bh3 gxf4 g5 Qc7 Bg4 Qb8 axb8Q h5 Ra4 hxg4 Ra5 Rh6 Ra1 Rh8 Kf2 Kd8 h4 g3+ Kf3 c5 Ke4 g2 Kd5 b3 d4 f3 h5 b2 g6 c3 e3 c2 h6 f2 h7 f1B g7 c4 Qd2 c3 Ra5 Be2 Rh6 Nb4+ Ke5 Nd3+ Kd5 Ne1 Ra2 Ra6 Kc5 Nf6 g8R Nh5 d5 Bf3 Na3 b1B Nh3 g1R Ng5 Nf4 Nb5 Ne2 Qe5 Bf5 Na7 Rf1 Rb6 Ng1 Rb3 B5e4 Rab2 f5 Nc6+ Kc8 Qf6 e6+ Qe7 Ra2 Kd6 Ra6 Rg6 Bg7 Qd3 Re8 h8B Bf6 Bd2 c1B Nh7 c2 Rg4 Rf8 Bg7 Re8 Bh6 Ra2 Bf4 Rf8 Ne5 Kb8 Kd7 Ka7 Qb5 Re8 Kc7 Rh8 Qbd7 Ra8 Nc6+ Ka6 Nb8+ Ka7 Kc8 Ra6 Bc7 Ra2 d6 Ra6 Ra2 Ba3 Rab2 c1B Qdd8 Rc6 Qed7 Ra6 Q8e7 Rb6 Rd3 Bc5 Rc2 Rb2 Bc3 Ra2 Bd2 B5a3 Rb3 Nd3 Bca5 Ne1 Bab4 Kb6 Rcb2 Ra4 Ba5+ Ka7 Bc7 Ra6 Nc6+
8/1Q1k1p2/rPppbBr1/n2r4/rN1Br2b/4Q1Rb/1R2P2B/b1K1nN2 b - - 0 1 legal: proof: f4 e5 d4 exd4 b4 g5 c4 b5 g4 h6 a4 bxa4 b5 Qf6 c5 Qb6 cxb6 gxf4 g5 h5 Bh3 Nc6 Be6 Nb8 Bg4 hxg4 Kd2 a5 h4 g3 g6 g2 h5 d3 b7 d6 h6 f3 g7 f2 b6 f1B h7 a3 Rh6 a2 Rg6 a4 Qc2 a3 Qc4 Nc6 b8B Kd7 Qd4 Nf6 g8Q Ra6 Rg3 Be7 Qb2 Ng4 Qb3 Nf2 Nc3 Na5 Nf3 g1R Nd5 c6 Bc7 Bh3 Bd8 Bh4 Rb1 a1B Rb2 a2 Nh2 Rg2 Qg5 Re8 h8B Re4 Bd4 Be6 Nb4 Bh3 Kc3 d2 Kc2 d1R B8f6 Nd3 Nf1 Be6 Bce3 Bh3 Bg1 Ne1+ Kc3 Be6 Bh2 Bh3 Qc4 Be6 Qe3 Rg1 Bc5 Rd5 Bcd4 Bh3 Kd2 Rg2 Rf3 Rg6 Rg3 Ke8 Kd1 Bce6 Kc1 Kd7 Rd2 Bc3 Rb2 a1R+ Rb1 Ra2 Qb5 Ba1 Rb2 Ra4 Qbd3 Rf4 Qf5 Re4 Qg4 Rh6 Qg8 Rg6 Qa8 Nf3 Qb8 Ne1 Qb7+
1r1RRb2/1B1KQ3/p3n1P1/2RnN2k/1B1pq3/1b1Nqb2/2p1Pp2/2r1Qq2 b - - 0 1 legal: proof: f4 g5 a4 b5 axb5 e5 Ra4 exf4 Ra2 Bb7 Ra1 Bc8 d4 c5 h4 gxh4 c3 cxd4 Ra3 dxc3 Ra4 Be7 Ra1 Bf8 Kf2 d5 Kf3 f5 b4 Kf7 g4 Kg6 g5 h5 b6 c2 b5 h3 b7 d4 b6 h2 Bh3 h4 Qd2 a6 Qe1 Qe8 Nc3 Nc6 b8R Nge7 b7 Nd8 Ra5 Nd5 Na4 Be6 Nb2 Kh5 Bg2 h3 g6 Qe7 Rc8 Rb8 Bd2 Bf7 Rcc5 Ne6 Bb4 Qe8 Nd3 Rh7 Kf2 f3 Kg3 f2 Nf3 f1Q Nfe5 Rh6 Rc8 Rh8 Rd8 Qe7 Rg1 h1B Rc5 h2 Be4 Bf3 Rh1 Qg1+ Kh3 Qe3 Rf1 h1Q+ Kg3 Ra8 b8Q Qb7 Qc7 Rb8 Rf2 Qf1 Qe7 Qa8 Ba5 Rb1 Bb4 Rc1 Re8 Nb6 Bc6 Nd5 Bb7 f4+ Kh2 Bh1 Rd8 f3 Kg3 Kh6 Kg4 Bg8 Kf5 Kh5 Rg2 f2 Rg4 Bf3 Re4 Bf7 Qc3 Be8 Qe1 Ba4 Nc6 Rg8 Ke5 Bb3 Kd6 Qb8+ Kd7 Qe5 Rf4 Q5e4 Nce5 Bg7 Rf6 Re8 Rf8 Bh6 Ra8 Rb8 Re8 Bf8 Bc6 Rb6 Rad8 Rb8 Bb7
r4b1n/2PnR2k/p3Nq2/pqr1BpP1/3Qb3/1n4BB/bQpR4/4N1K1 b - - 0 1 legal: proof: b4 c5 f4 g5 h4 gxh4 c4 e5 a4 exf4 a5 b6 bxc5 bxa5 Ba3 d5 Bc1 dxc4 Kf2 h5 e4 f5 g4 Kf7 d4 Kg7 e5 c3 g5 f3 c6 h3 d5 h4 e6 a6 d6 c2 d7 h2 c7 h3 e7 Kh7 e8Q Nh6 Ne2 Qf6 d8B Be6 Qd4 Nf7 Bf4 Nd7 Bg3 Ba2 Qee5 Rb8 Nd2 Rb5 Rc1 Rc5 Re1 Rg8 Rg1 h1B Rg2 h2 Nf4 Nh8 Ne6 Nf7 Rg1 Nh8 Bh3 Bg2 Be7 h1Q Bd6 Qh2 Re2 Bh1+ Kf1 f2 Re3 Bf3 Rg2 Be4 Nf3 Qh1+ Rg1 Qh2 Ne1 Qh1 Rd3 Qf3 Rd2 Qb3 Qb2 Qb6 Qed4 Qc6 Ke2 f1N Kf2 Qb6 Bde5 Qb5 Re2 Nd2 Rg2 Nb3 Kg1 Bh6 Re3 Ra8 Rd2 Bf8 Rc3 Rd5 Rc6 Rc5 Rb6 Bd5 Rb8 Bh1 Re8 Be4 Re7+
3N1Q2/P1pN2N1/2r5/3pb1K1/1BPnq2n/n1rp1kpr/1R6/1bB1Qq1R b - - 0 1 legal: proof: d4 a5 g4 g5 e4 e5 b4 axb4 f4 exd4 Bh3 f5 exf5 gxf4 g5 h5 Bg4 hxg4 Kf2 Kf7 h4 d5 a4 b5 c4 g3+ Kf3 b3 Kg4 f3 a5 b2 g6+ Kf6 a6 Ke5 h5 Ke4 g7 b4 h6 b3 h7 f2 Qf1 Bd6 Ra5 Nc6 Ra2 Qe7 Ne2 Be5 Qe1 f1Q Nd2+ Ke3 Kh5 b1N f6 b2 f7 Na3 f8B b1R Ne4+ Kf3 Nf6 Nh6 g8Q Nf5 Kg5 Nh4 Nf4 Rb6 Nh5 Bf5 Rb2 Bb1 Ng7 d3 a7 Rab8 Qf7 Nd4 Qg8 Qe8 Nd7 Rc6 Bd6 Rb3 Bb4 Qe6 Qd8 Rc3 Qe8 Rf8 h8N Rf6 Nf7 Rh6 Nd8 Rh8 Nh5 Qe7+ Nhf6 Qh7 Qf8 Qe4 Nh5+ Nhf5 Ng7 Rh3 Qc5 Nh4 Qf8+
1Qb1r3/pR1BbK2/Np1R2P1/1PpNB2Q/5n2/1r2R3/3p1n2/qbrq3k b - - 0 1 legal: proof: h4 f5 e4 g5 exf5 gxh4 Qg4 Na6 Qd1 Nb4 d4 Nxa2 d5 Bg7 d6 cxd6 c4 Bf8 c5 dxc5 Kd2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 e5 b4 b6 f4 h3 g4 h2 b5 e4 Nd2 e3 Ne2 h4 Rb1 h3 Rb3 Nh6 Nf3 Be7 Nc3 e2 Nd4 e1Q Bb2 Nc1 Nc2 Nd3 Nb4 d6 Rg1 h1R Na6 h2 Bh3 Rf8 Qe2 Qa1 Rd1 Rg1 Rd2 h1B+ Qf3 Rc1 g5+ Kf7 g6+ Kf6 Rd1 Ng4 Rd2 Ngf2 Rd1 Kg7 f6+ Kh6 f5 Kg5 f7 Kh4 f6 Rb8 Bd7 Nf4+ Kc4 Rh8 Qh5+ Kg3 f8Q Be4 f7 Kg2 Rd2 Bc2 Nd5 Bb1+ Rc3 Rh6 Qh8 Ra8 f8R Kg1 Rf7 Rb8 Qe2 Rh3 Qeh5 Kh1 Qe8 Re1 Re3 Rc1+ Bc3 Ra8 Bc6 Qd7 Rdd3 Qg4 Bd7 Qd1 Qd8 Bb7 Qc7 Re8 Qb8 Bc8 Rd2 Bc2 Be5 Bb1+ Nc3 Ne2 Kd5 Nf4+ Kc6 d5 Rdd3 d4 Nd5 Bh4 Kd6 Rg3 Rd2 d3 Re7 N4h3 Ke6 Nf4+ Kf7 Rh3 Rde2 d2 Re6 Be7 Rc6 Qc2 Rc7 Qd1 Rb7 Kg1 Rd3 Rg3 Rd4 Rb3 Re3 Kg2 Nc3 Kg1 Rd6 Kg2 Nd5 Kg1 Bh3 Kh1 Bd7+
3r4/p1Pk2N1/1PB1b2B/2pbqR2/3Nr2n/1b1bp1n1/1K1Q2pN/2Q3nR b - - 0 1 illegal: No proof kernel
NB2QK2/1r3n1k/5p2/q4P1b/q2prR2/P2nNr1p/Q2BQrp1/b6R b - - 0 1 legal: proof: h4 e5 c4 h5 g4 hxg4 Bh3 gxh3 b4 a6 b5 axb5 d4 bxc4 dxe5 c3 f4 d5 Kf2 g5 Kf3 b5 e4 c5 h5 b4 e6 c2 Kg4 c4 Kf5 c3 e5 b3 a3 g4 h6 g3 h7 g2 Nf3 b2 Re1 Ra4 Qd2 Nd7 e7 Nh6+ Kg5 Re4 Rd1 Bg7 Nh2 Qa5 Rh1 Nc5 Ng4 Nd3 Ne3 Rf8 h8B Bg4 Qf2 Bd1 Nd2 b1R Ndc4 Bh5 Bd2 c1Q Nb6 c2 Na8 Rb7 Rb1 Qd1 Rb4 c1R f5 Rg8 Rd4 Qda4 Rc4 Rc2 Qe2 Bf8+ Kf6 Rg3 Rb4 Rf3 Rd4 Kd7 e6+ Kd6 e8Q Bg7+ Kg5 Ra2 Qg8 Ke7 Rc4 Bd4 Be5 Ba1 Bb8 Rab2 Qg6 Kf8 Kf6 Rc2+ Rd4 Rcb2 Qg3 Rc2 Qgf2 Kg8 e7 Kh7 e8Q Ng4+ Kg5 Nge5 Kf6 Rcb2 Qd7 Rc2 Ke7 f6 Kf8+ Nf7 Qe8 Rh4 Rg4 d4 Rg6 Re4 Rg4 Rc1 Rf4 Rf1 Qg1 R1f2 Qb1 Qc2 Qb2 Qca4 Qa2
1R3q2/k2r3Q/Bpr3N1/1p1q2nq/ppP4b/2P2QBR/2Q1b3/3qqNK1 b - - 0 1 illegal: No proof kernel
4q1qb/KN3q2/pN2kR2/pb1pPnRP/1r1n4/B4q1p/QNQB4/3b4 b - - 0 1 illegal: No possible last move, all moves rejected
NRB2K2/1PP4p/Nqb3pr/kr2B1bn/Q1b2bQp/8/rr2p1R1/6B1 b - - 0 1 legal: proof: d4 c5 e4 b5 a4 bxa4 h4 d5 g4 f6 g5 fxg5 Qd3 gxh4 Qe2 Na6 Qd1 Nc7 Nf3 cxd4 Ng1 d3 Qf3 d4 Qd1 Nd5 exd5 Qc7 Ra3 Qd6 Ra1 Qd8 Kd2 Kd7 b4 Kc7 f4 Kb6 c4 a5 f5 e5 f6 e4 f7 a3 c5+ Kb5 c6 a2 d6 g6 d7 a4 c7 a3 Qa4+ Kb6 b5 Nf6 Nf3 Ba6 Rh2 Nh5 Ne1 Qb8 d8Q Be7 f8B Ra7 Re2 Rb7 Bg7 Qa7 Qd7 Rhb8 Qg4 Bg5+ Re3 Bf4 Nc3 Bg5 Rb1 a1R Bb2 a2 Bh3 Bf4 Nc2 Bg5 Qb3 Ka5 b6 Bc4 Be5 Qa6 Nb4 Bf4 Ke1 d2+ Kf2 d1R Re2 e3+ Kf3 d3 Ke4 d2 Rg2 e2 Na4 Rc1 Qc2 d1B Bbd4 Qb5 Rb3 Rcb1 Na6 Rb2 Bc5 Rd8 Bg1 Rd5 Rf3 Bg5 Rf8 Rc5 Qb3 Bc2+ Kd4 Be4 Rb8 Bc6 Qa3 Qb4 Qb3 Rb5 Qd1 Ra7 b7 Rab1 Qc2 a1B Nb6 Rc5 Na8 Qb6 Qg3 Bf4 Bc8 Rd5+ Ke4 Rbb5 Qd1 Bd4 Qdb3 Rb2 Qg4 Bde3 Qh3 Ng7 Nc5 Bh6 Qg4 Bef4 Bf6 Rh5+ Kd4 Bhg5 Be5 Rh6 Qd1 Be8 Qc2 Nh5 Qe4 Bd3 Kd5 Bc6+ Ke6 Ra6 Kf7 Ra7 Qef3 Kb4 Kf8 Raa2 Qe4+ Ka5 Qc4 Bc1 Na6 Bcf4 Qb3 Bc4 Qa4+
3Rb1n1/KQ4bP/2k3bR/1rB1rpQp/NB5p/1P3rN1/n5pr/3Q1b2 b - - 0 1 illegal: No proof kernel
3N4/1p1PpB1p/1BRn1n1r/2Pk1pN1/1R5q/Q2rQp1b/2K1Qb2/1n1r4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 e4 gxh4 e5 d6 Na3 dxe5 Nb5 exf4 Nxc7+ Kd7 Ba6 f3 Bb5+ Nc6 Bf1 Nb8 a4 Kd6 g4 f5 c4 b3 d4 b2 Kd2 b1N+ Kc2 h3 g5 h2 d5 Nf6 g6 Bd7 g7 Qc8 g8Q Ra6 a5 Be8 Nh3 Kc5 d6 Ra7 a6 Nbd7 Qe6 Ne5 Ra4 Nf7 Ng5 Bh6 Qde2 Bb5 Rb4 Rd8 Be3+ Kc6 Rg1 h1R Bb6 Bg7 Q6e5 Rh6 Q5e3 Qe6 c5 Qc4+ Qc3 Qd4 Qce3 Qh4 Nce6 Kd5 Rg2 Raa8 a7 Rd7 Rg1 Rad8 a8Q Bc4 Qaa3 Ba6 Q2f2 Bc4 Be2 Bh8 Bd1 Bf1 Qfe2 Bh3 Rg3 Ne8 Rg1 Bd4 Rg4 Nf6 Re4 Ra8 Nd8 Ra5 Re6 Rb5 Rc4 Rb3 Rb4 Rd3 Re4 Rc7 Re6 Rc6 d7 Nd6 Qec1 Bf2 Qce3 Nde4 Ba5 Ra6 Rc6 Nd6 Bb6 Ra4 Rb3 Rad4 Rb4 Qe4 Kc1 Qh4 Bb3+ Nc4 Ba2 Rd1+ Kc2 R4d3 Bb3 Nc3 Qe1 Nb1 Ne4 Ke5 Q1e2 Nd6 Bc4 Bg3 Bf7 Bf2 Bg6 Kd5 Ng5 Rh5 Be8 Rh6 Bf7+
3Q3b/1N2Q2B/pB5p/3k3p/rRnq4/b1Rpr1bK/P1p1qP2/1Q2n1N1 b - - 0 1 legal: proof: c4 c5 h4 b5 e4 bxc4 b4 f5 b5 fxe4 d3 cxd3 h5 g6 b6 gxh5 b7 a6 bxc8Q Nc6 Bd2 Na7 Bc1 d6 Qf3 Rb8 Qe2 Rb4 Qa8 Rd4 Qd1 Rd5 g4 Kf7 g5 Ke6 g6 h6 g7 d2+ Ke2 c4 Bg2 e3 Kf1 c3 Nh3 e2+ Kg1 e1B Kh2 c2 Be4 Nf6 Qe2 d1Q Qf3 Bd2 Kg3 Ra5 Bh7 d5 Qc8+ Nd7 Qa8 d4 Bg6 d3 Qe3+ Ne5 Bb2 Nc8 Qg5 Qd4 Bc1 Nf3 Na3 Qe2 Rb1 Ne1 Rb3 Nb6 Nb5 Nc4 Qb8 Ra4 Ng1 Bf4+ Kh3 Bg3 Nd6 Rh7 Qe3+ Kd5 Rc3 e5 Nb7 e4 g8Q+ Rf7 Bh7 Ba3 Qgf8 Re7 Qg5+ Re5 Qge7 e3 Rh2 Qf1+ Rg2 e2 Bf4 Re3 Bc7 Nf3 Qfc8 e1B Bb6 Qe2 Rh2 Bd2 Qce8 Ne1 Qb5+ Qc5 Qb1 Bdc1 Rg2 Bcb2 Qbd8+ Qd6 Rb3 Bh8 Rc3 Bge5+ Rg3 Bf4 Rf3 Bg3 Rf4 Ne5 Nc5 Kc6 Rb4 Nc4 Qb8 Qd4 Nb7 Kd5 Qbd8+
6b1/2q1bbN1/k3Q1Rp/4r1P1/2b1n3/pppN1p2/B2rPR2/BQn1R1K1 b - - 0 1 illegal: No possible last move, all moves rejected
4Q1N1/2qB1rP1/nR1pq3/1Qp3r1/1bB1pP1K/p1R5/1k1RpNb1/6qb b - - 0 1 legal: proof: d4 g5 a4 f5 b4 c6 h4 gxh4 e4 fxe4 c3 b6 d5 Na6 Be3 Nc7 c4 Nb5 axb5 cxd5 c5 Nf6 c6 Ng8 Bc5 bxc5 Ra4 d4 Ra5 Nh6 Ra1 Ng8 g4 Kf7 f4 Ke6 Kf2 Kd5 c7 e5 b6 h5 g5 a5 b7 a4 b8Q a3 g6 e3+ Kf3 d6 b5 d3 b6 Kc4 b7 e2 Qe1 Kb3 Kg2 d2 Qg3+ Kb2 Qg5 d1Q Qg3 e4 Qf2 h3+ Kg3 h2 Qg2 Rh7 Nc3 Rf7 Nd5 Nf6 Nh3 Bg7 Ne7 Nd7 Nf2 Qb3+ Kh4 Qe6 Rd1 Bc3 g7 Bb4 Rg1 h1B Qg6 Ra7 Bh3 Rf5 Rgf1 Rg5 Ng8 Qde7 Qe8 Qd8 Qa8 Nb8 Qb5 Na6 b8R Bd7 c8B Qc7 Rb6 Rb7 Bg4 Ra7 Kh3 h4 Rc1 Rb7 Rfd1 Ra7 Rc3 Rb7 Kh2 h3 Kg3 h2 Rd2+ Kb1 Rf3 Qf6 Rd5 Kb2 Ne7 Qd8 Rc3 Bf3 Kh4 h1Q+ Nh3 Qg1 Ng8 Bh1 Nf2 Bf5 Rd4 Rf7 Bd7 Qc7 Qe8 Qg6 Bh3 Bg4 Be6 Bgf3 Bc4 Bfg2 Bd7 Qe6 Rd2+
3n1q2/p1p1B2k/Ppr1N1n1/1prQ2bn/8/1BPr2Np/Q1R5/1B2Rn1K b - - 0 1 legal: proof: g4 f5 d4 e5 b4 exd4 b5 g5 h3 fxg4 Qd3 g3 Rh2 g2 Qf5 g4 Qf3 g3 Qc6 dxc6 Rh1 Bg4 hxg4 cxb5 a4 Kf7 f4 Kg7 e4 h5 c3 b6 e5 h4 g5 d3 a5 h3 f5 Ne7 e6 Qd6 g6 Qb4 f6+ Kg8 g7 Rh4 f7+ Kh7 g8B+ Kg7 a6 Qf4 Ba3 Rh5 Nd2 Ng6 e7 Nc6 e8Q Nd8 Ndf3 Be7 Qc6 Bg5 Ne2 g1R Rc1 g2 Kf2 d2 f8Q+ Kh8 Be6+ Kh7 Bb3 Qd6 Qf6 Qf8 Qd5 d1N+ Kg3 Rb8 Kh2 Ne3 Ng3 Rh6 Bfc4 Rf1 Bc5 g1N Be7 Ne2 Bd3 Nf4 Qfe6 Nh5 Nd4 Rf5 Rhe1 Nf1+ Kh1 Re5 Rc2 Rc8 Qc4 Rc5 Qed5 Qg8 Rce2 Nc6 Qd7 Rd8 Bb1 Qf8 Rc2 Ngf4 B3a2 Rd6 Qa4 Ng6 Ne6 Rd3 Qdd4 Rd6 Bb3 Nd8 Qd5 Rdc6 Qa2
2N5/bNP1r1pp/k2RQb2/1b1b4/pQn2nK1/BPB1R3/pr1p4/n5B1 b - - 0 1 illegal: No proof kernel
N4B2/1p1PQ2r/1Nb1r1b1/1pp1Q3/kn1Np2p/qn4q1/1p1PK3/1RR2B2 b - - 0 1 illegal: No proof kernel
3R2Rn/1n2K1bb/r3n2r/2nQQ2r/4qPPr/nN2B2k/B5rq/b4N1R b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kf6 g4 Kg5 a4 d5 f3 h5 a5 b5 c5 e5 c6 b3 c7 h3 a6 Kh4 a7 b4 f4 e3+ Kd3 e2 Bg2 e1N+ Ke2 h2 Bh3 d3+ Ke3 e4 Kd4 b2 Ke5 e3 Ra6 e2 Qa4 d2 Rc6 d1R Nd2 b1Q Rd6 b3 Qc6 b2 Rf6 d4 Qb7 d3 Qa6 Bf5 c8R Nd7+ Kd5 Rh6 Qa1 Nf3 Ra6 e1B Bf1 Bh7 Qa3 Ne7+ Kc4 Nd4 Bh3 Ng6 Kd5 Ne6 Rc7 Bg7 Kd6 Nh8 Ne4 d2 Nc3 Qe4 Ra4 b1N Na2 Ndc5+ Rd7 Qg5 Ne2 Ba1 Rg7 Nb7+ Kd7 Bf2 Rf1 h1R Ng1 Bfd4 Rg8 Bg7 Re1 Rh2 Bf1 Rg2 Qd6 Qc5 Nh3 Qg1 Rd4 Kg3 Ke7 h4 Ng5 h3 Qc5 h2 Bc4 h1R Qe5 R1h5 Rdd8 Qh1 Rg1 Rf1 Bd5 d1N Be3 Nf2 Nf3 Nd3 Nc1 Ndc5 Nd2 Rf3 Bb3 Qh2 Nf1+ Kh4 Rh1 Rh3 Nd2 Kg3 Bc4 R3h4 Nf1+ Kh3 Bb3 Na3 Ba2 Nd3 Nb3 Rc8 Rd6 Rc6 Rd5 Ra6 Rdd8 Na5 a8Q Ndc5 Qc6 Nab7 Qcd5
Qrq2nRb/2R2q1n/3kBRqN/3n1rP1/4nB2/2N1bbbK/1PQb3n/8 b - - 0 1 illegal: No possible last move
1B2b1BK/3Qb3/qnrRr2P/4r2B/q2Pr3/kq3Nn1/1N3Q2/R1qbqr2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 g5 a5 b5 d3 f5 h5 g3+ Kf3 b3 a6 Kb4 a7 c5 d4 b2 h6 g2 e5 g4+ Ke2 g3 Kf3 c3 e6 c2 e7 c4 e8B c3 Ra6 Bd7 Qd2 Be7 Rc6 Nf6 Bg6 Re8 Bd3 Ne4 Qf2 Qa5 Qd2 Qa4 Ne2 g1R Qe3 g2 Rh3 Re1 Rh5 g1Q Nd2 b1B Rc8 Ng3 Bb2 c1R Qe5 c2 Bc3+ Ka3 Qd5 b4 Be4 b3 Rh1 b2 Bh5 Ba2 Qe6 b1Q Bd5 Bb3 Ba5 Bc6 Bd8 Nd7 Bc7 Nb6 Nc3 Re5 Nd1 Qe1 Rd8 Rb8 a8Q Rc8 Kg2 f3+ Kh3 f4 Kg4 f2 Nb2 f1R Qd7 f3 Bg8 f2 Nf3 Bb5 Bb8 Rc6 Qab7 Rd1 Qf5 c1Q Rd6 Rd3 Qf4 Rde3 Qd7 Bd1 Qf6 Re6 Kg5 R3e4+ Kg6 Qbc2 Kh7 Qcb3 Kg7 Rg1 Bgf7 Rd8 Qf5 f1Q Nh4 Rcc8 Qc6 Qcc2 Ba7 Qeb4 Bg8 Bf3 Qb7 Be8 Rc6 Rd5 Rd6 Rde5 Kh8 Qfa6 Bb8 Rc6 Qd7 Bg4 Qf2 Ra1 Re1 Q4c3 Re3 Rf1 Re1 Be2 Rb1 Bd1 Nf3 Qe1 Kh7 Qc5 Kh8 Qc1 Ra1+
3qkBr1/qNR5/1q2B1P1/1R2r3/1r1Q1Rq1/1b1K2Pq/1br1r3/2QnNbn1 b - - 0 1 illegal: Other
2B1r2n/4q1PK/nb1N4/Rqn1kBB1/b1P1n2Q/3qQb1N/1b4r1/1n1R1b2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Ke6 f4 h5 a4 d5 c4 b5 a5 d3+ Ke3 b3 f5+ Ke5 f6 b2 a6 d2 a7 h3 f7 h2 g5 b4 g6 b3 g7 d4+ Ke2 d3+ Ke3 h4 Nc3 b1N Na4 h3 Ba3 b2 Qe1 d1Q Nc5 d2 Ra2 Nh6 Bd3 Na6 Kf2 e3+ Kg3 e2 Qf2 e1N Be2 Nd3 Ne6 Ndc5 Kh4 Qc2 Kg5 d1B Ra1 Qcd3 Bg4 Ba4 Nc7 e6+ Kh5 Qe7 Ne2 Nd2 Nd5 b1N Ndc3 Nde4 Rd1 h1Q Kg6 h2 Bb2 Qhf3 Rc1 h1B Ra2 Qff6+ Kh5 Bf3 Qe3 Qf5+ Qg5 Bcd7 Rd1 Re8 a8B Bdc6 Nf4 Bg2 Nh3 Bf1 Nf4 Nd7 Nb5+ Nec3 Bc1 Qed6 Ra3 Bc2 Bb7 Ke4 Nc7 e5 Ra5 Ba4 Rb5 Qde6 Bc8 Bc5 f8Q Qe7 Bd2 Bb6 Qf6 Nf7+ Qh6 Kd4 Ng6 e4 Na8 e3 Bh3 e2 Ra5 e1B Nf4 Bf3+ Bg4 Bh4 Nc7 Ne4 Qh7 Qfe5 Kg6 Be1 Qh1 Rh2 Bf5 Rg2 Kh7 Nh8 Qhh4 Qd5 Qgh6 Ke5 Nb5 Bef2 Q6g5 Bfd4 Nd6 Qb5 Nh3 Bb2 Bc1 Ndc5 Qd2 Bc2 Qe2 Bb3 Bg5 Ba4 Qe3
2qNqRK1/Q4QP1/rnNP3R/b1q1r3/1qB3nB/3kb3/4bRbb/1q2r3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 Kd4 e4 f5 a4 b5 g4 c5 g5 b3 g6 f3 g7 b4 a5 b2 d3 b3 a6 f2 a7 f4 e5 h3 e6 c3 e7 c2 e8R c4 Na3 b1Q Qe2 c3 Rh2 b2 Qe7 f3 Rh1 h2 Nh3 Ba6 Qe2 Nf6+ Kh6 Bd6 Qd1 Qc8 Re1 Ng4+ Kg5 h5 Kg6 h4 Kf7 Nd7 Bg5 c1B Re3 c2 Be2 f1R Bh6 f2 Bg5 Re8 Ra2 Nb6 Re7 Re1 Qd2 f1B Nc4 Bg2 Rd7 Re5 Nf4 h3 Bh4 Qc5 Qa5 Bd2 Rd8 c1B Kg8 Bc3 Rf8 Be3 Qa4 Ba5 Qe8 Qc2 Bf1 b1Q Qf7 Qbb4 Ne6+ Kc3 d4 Qe4 Rg1 h1Q d5 h2 Nd8 Qf5 Rf2 Qfc8 Be2 Bb8 Rgf1 Qg1 Rf6 h1Q Rh6 Q5c6 Rf2 Qe8 Nc6 Bb5 Nd6 Bc7 Bf1 Be2 Nb7 Kd3 Nbd8 Re4 Rg6 Bh2 d6 Re5 Rh6 Bd2 Rff6 Qgc5 Rf3+ Be3 Rf2 Rb8 a8Q Rb7 Rff6 Ra7 Rf2 Ra6 Qaa7 Bh3 Bg2 Qf1 Bd5 Bg2 Rff6 Qff5 Ba2 Qfe4 Rf2 Qb1 Bd5 Qeb4 Bc4+
1r1Nk1bK/qr2Q2B/3Rnr1N/4B1n1/1qn1R2r/R3Q2P/qP3r2/2bb1q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 d5 Kd3 a5 c4 g5 e4 f5 e5 f3 e6 f4 e7 a3 h3 f2 c5 g3 c6 g2 c7 f3 Nd2 g4 Qc2 a2 Ne4 g3 Qc4 a4 Rb1 a1Q Nc5 a3 Qa4+ Nd7 Ne4 a2 Ng5 Bh6 Qc4 Rb8 Ne6 Nc5+ Kc2 d3+ Kc3 d2 Kd4 d1N Ke5 d4 Rh2 d3 Rh1 d2 Ng5 Ne3 Qg4 d1B Qb4 Nc4+ Kf4 Nf6 Bd3 f1R Ne2 g1Q Bh7 f2 Nd4 g2 Nc6 Ne6+ Kf5 Qd4 Kg6 Ne4 Nf7 N4g5 Ncd8 Qc5 Qb6 Qb4 Qe3 Bb7 c8Q Bd5 Rh2 Qh1 Qc7 g1R Qd6 Rg2 Bd2 Qg1 Bc3 Rb7 Bg7 Rg4 Bc3 Rh4 Be5 Rf8 Rc1 Qb1+ Kf6 a1Q Rc3 Qa7 Ra3 Qa2 Qc7 Re1 Kg6 f1R Rd2 Rf2 Rd4 Qf1 Rdd3 Bh1 Rd6 Bd5 Qcc5 Ree2 Qc7 Rf5 Qcc5 Ref2 Qc7 Ne4 Qcc5 Bf4 Nh6 N4g5 Qc7 Ng7 Qcc5 Bg8 Qc7 N7e6 Qcc5 Nd4 Kg7 Nde6+ Kh8 R5f6 Qc7 Nd4 Qc1 Be3 Bg3 Bd2 Ne6 Bf4 Ng4 Kf7 Qc3 Ra8 Nd8+ Ke8 Nh6 Bc1 Qe3 Rab8 Rc6 Bf3 Qce5 Kd7 e8R Bd1 Rd6+ Kc8 Qe6+ Kc7 Qf7+ Kc8 Re4 Nde6 Qf8 Kc7 Be5 Kc8 Rda6 Kd7 Qg7+ Ke8 Rd6 Qa1 Qc7 Qa2 Qe7+
1B2r2b/r2bkN1R/4B2P/1r1Pnqb1/3R2Nq/1rQ1B1q1/4n2Q/2nK2br b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 f4 c5 d4 b5 a4 e5 h4 g5 f5 g3 a5 e3 f6 b3 d5 b4 a6 c3 h5 g4 a7 b2 f7+ Ke7 h6 g2 Bb5 b3 Qd2 e2 Ra2 c2 Ra4 e4 Rh3 c4 Qc3 g3 Rb4 Nc6 Na3 b1Q Ba6 b2 Rb6 Nf6 Nf3 g1R+ Kd2 e1R Nh2 g2 Nf1 Bg7 Rh1 Nh5 Rh2 Nf4 Bb7 Re3 Qd4 Rh1 Qd3 g1B Rg2 Re8 Nb5 Ne2 Nd6 Bd7 Bc8 Ne5 Nh2 Bh8 Rb4 c3+ Ke1 Rg3 Rd4 e3 Qd2 Rf3 Rg7 Rg3 Ng4 Qc7 Qd1 Qb8 Bd2 c1B Qb3 Qf5 Rh7 c2 Qc3 b1R f8B+ Kd8 Rc4 Rb5 Rd4 Qc7 Bg7 Ke7 Nf7 Qd6 Bb7 Qdf6 Ba6 Qh4 Bc8 Rab8 a8Q R8b7 Qb8 Ra7 Qa8 Ba3 Qac6 c1N Kd1 Bd6 Qb7 Bc7 Qa6 Bd8 Qa2 Nf4 Nh2 e2+ Ke1 Ng4 Qaa5 Be6 Qe3 Bc7 Qf2 Rgb3 Qc3 Be5 Qfg3 Bf6 Be3 Bg5 Kd2 Ncd3 Be5 e1Q+ Kc2 Ne2 Bb8 Nge5 Ng4 Qef2 Kd2 Ndc1 Qh2 Qfg3 Kd1 Bd7 Rg7 Bc6 Be6 Bd7 Rh7
1b1r2bQ/b1P1B1Qr/5RK1/qrN2n2/NR1n1P1Q/qq1k3B/1r2n1nr/8 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 a4 Kd5 g4 e5 a5 h5 a6 b5 a7 e3+ Kd3 e2 g5 e1B c3 b3 g6 e4+ Ke2 Kc4 g7 d5 Be3 h3 Qd2 b4 Qa2 h4 Qc2 b2 Nf3 d3+ Kd1 d4 Ra6 h2 Rb6 h3 Re6 b3 Re7 Bf2 Kd2 Qa5 Re6 Rh7 Ne1 Bd6 Rg1 h1Q Nf3 h2 Re5 Be6 Rg3 Ne7 g8Q Nf5 Rb5 Nc6 Rb6 Bb8 Nh4 Qf3 Bg2 h1R Qg7 Rh2 Rg6 Bg8 Rf6 Qg3 Ng6 Bg1 Kd1 d2 Ke2 d1N Nf8 d3+ Kd2 Bf2 Bc5 Ncd4 Ne6 Qf3 Rb5 Bg1 Be7 e3+ Ke1 e2 Kd2 e1N Nc5 Bf2 Bh3 Ng2 Rbb6 Qc6 Qc1 Qca4 Rb5 Qa3 Rb7 Nde3 Qh1 Nec2 Rb5 Ne2 Rb4+ Kd5 c4+ Kd4 Nc3 b1R Qe1 Rb2 N3a4 Bg1 Qh4 Bf2 Na6 Ke4 c5+ Ncd4+ Kd1 d2 c6 Ke3 N6c5 Bd6 Qf8 Rd8 a8Q Be5 Qg7 Bb8 c7 Bg1 Qc6 Bf2 Qe8 Bg1 Ne6 Kd3 Qeh5 Nf3 Qhh6 Bga7 Qh8 N3d4 Q6g5 Rd5 Qgg7 Rb5 Nec5+ Ke3 Rf8 Nh6 Nc3 Ne6 Qh5 Ra2 Qhg5 b2 Kc2 d1R Rf6 Rd8 N3a4 N6d4+ Kd1 Nh4 Ke1 Ng2+ Kf1 Kd2 Kf2 b1Q Qg3 Qbb3 Qh4 Nc3 Kg3 Nhf5+ Kg4 Rb2 Kg5 Nce2 Kg6 Ke3 Nd7 Kd3 Ndc5+
3Q3r/1PR2rn1/3B1q1N/bq3n1r/B1R1r1N1/2nn3P/1Q1q2nb/R2b1k1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Rh5 Kg2 Ke7 e4 Kd6 c4 Kc5 e5 a5 e6 g5 h3 d5 e7 f5 e8Q d3 b4+ Kd4 b5 a3 c5 g3 b6 g4 c6 a4 c7 d2 b7 a2 Qe7 a3 Qd7 Ke3 Q7a4 d4 Qa7 Nc6 Nf3 Nf6 Qc2 Nb4 Qc6 Ne8 Qb5 Ng7 Ng5 f3+ Kg1 f2+ Kg2 f4 Bd3 f1R Rg1 f3+ Kh1 Kf2 Qe8 d1N Ba6 g2+ Kh2 Ne3 Nf7 d3 Nc3 d2 Qe7 d1N Qg5 Qd2 Rh1 g1N Rb1 a1Q Nd5 Ne2 Qf4 Nd4 Qe5 Ng2 Nd8 Be7 Nf7 Bd8 Qg5 Ke1 Nf6 f2 Qb6 Bd7 c8R Ba4 Qbb5 Ba5 Rc6 Rah8 Rb3 Qab2 Qf4 a2 Ng5 a1Q Rc2 Nd3 Rbc3 Ke2 Qc7 Re1 Qd8 f1R Qb4 Kf2 Rg1 Re4 Rc7 Qbb1 Qa3 Qb6 Bc4 Qb5 Nf7 Ke2 Nh6 Rff5 Nd5 Rf7 Kh1 Ndf5 Bb3 Qf6 R2c4 Nc3 Ne3 Kf2 Bb2 Ke2 Ra1 Kf2 Ba2 Bd1 Bb3 Ke1 Ba4 Kf2 Nc2 Kf1 Qa2 g3 Ba3 Ngh4 Bd6 g2+ Kh2 g1B+ Kh1 Ng2 Qb2 Bh2 Ne3+ Ke2 Neg4 Ke1 Ba3 Kf1 Bd6
rrqnQ2q/3B2RQ/1rN2r1n/4P1K1/1R1b1NR1/r5B1/1nn1P1k1/1r1b3r b - - 0 1 illegal: Other
n3nq1n/q1q1n3/1b1kP1Q1/r2r4/NKQ1B1nn/1P3Q1b/3R2Nn/2BR1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 c4 f5 g4 h5 e4 a5 b3 d5 c5 d3 Kc3 d2 c6 f3 g5 d4+ Kc4 h3 e5 h4 g6 h2 c7 f4 g7 f2 Ra2 d3 Kc3 h3 Qc2 d1N+ Kc4 f3 Be2 f1N Rb2 d2 Kc5 f2 Bc4 a3 Nf3 a4 Ng5 a2 Nh7 a1Q Bf7 a3 Kb4 a2 Qf5 Nf6 g8Q Nde3 Qgg6 d1N Qg8 Nbd7 Be8 Ra5 Qg3 Nb6 Bc6 Neg4 Bf4 Na8 Be8 Nde3 Rg1 h1N Kc3 h2 Na3 Nc4 Ng5 Qc1+ Kb4 a1Q Nc2 Rh5 Na3 Nd6 Bd2 Nf7 Qh4 Nhg3 Qe4 h1N Qg6 Nh8 Rc2 Nfh2 Nh3 f1Q Nb5 Nf5 Qg3 Nh4 Qf3 Ng3 Bc6 Ngf5 Nf4 Ne8 Be4 Bh6 Ng2 Be3 Ra2 Bb6 Nc3 Rd5 Rc2 Qa7 Na4 Kd7 Bf4 Ne7 Rf2 Qc6 Bc1 Qf6 Rd2 Qf8 Qgf5+ Kc6 Qg6+ Be6 c8Q+ Qdc7 Qh7 Bf5 e6 Kd6 Rh1 Ne5 Rg1 Bh3 Qg6 Neg4 Qa6 Re5 Qc4 Rh5 Rb2 Ra5 Rd2+ Rhd5 Rh1 Qe2 Re1 Qf1 Red1
3b1nr1/2Nq3Q/1K1P2n1/3qq3/q1RBb3/1NPB2Rb/bkrb1QbB/b7 b - - 0 1 illegal: No proof kernel
1Nq1q1q1/n2R4/2R1rB2/r2Bnkb1/3P2Q1/Pr1qQb2/1q2r1N1/2qrQ2K b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 e4 Ke6 d4 f5 g4 h5 Kg2 b5 e5 c5 g5 h3+ Kh2 c3 g6 c2 g7 f3 a3 c4 Qd3 f2 Bb2 c1Q Qg3 b3 Bc3 b2 Ba5 b4 Qb3 h4 Qf3 c3 Bb6 c2 Qg4 b3 Bc7 Nc6 Ba5 Na7 Bg2 f1Q Bd2 Qfe1 Ne2 Nf6 Qf4 Nd7 Qe4 f4 Qd3 f3 Qb5 f2 g8Q+ Kf5 e6+ Ne5 e7 f1Q e8Q Be7 Bb7 Rh6 Bb4 Re6 Nf4 Bg5 Qd5 Qd3 Nc3 b1Q Qa5 b2 Bf3 Bb7 Bd1 Bf3 Ng2 Qc8 Qg7 Qa2 Nd5 b1R Nc7 Rb3 Be7 Qcb2 Bf6 c1Q Na6 Qee4 Qee7 Qec6 Rg1 Q6e8 Kh1 h2 Qab4 Nac6 Nb8 Ra5 Qe1 Na7 Qd6 Rb6 Qh6 Qd5 Qd7 Rb3 Qdg7 Qdd8 Bc2 Qg8 Bb1 Qde8 Ba2 Q1c6 Rc1 Rb4 Bd5 Bf4 Qgg3 Qeg6 Qe2 Nc4 Qg7 Rb7 Qe3 Bd1 Qgf2 Qg6e8 Ne1 Bf3+ Qfg2 Ne5 Qg3 Rb3 Rc2 Qcc3 Qgf2 Qcd2 Rc6 Qdc1 Qf1 Bh5 Qgg3 Be2 Kg2 h1R Qff3 h3+ Kf2 Rh2+ Rg2 Bd1+ Kg1 Be2 Qf1 Bf3 Qh4 Bh6 Rg7 Re2 Ng2 Bg5 Rd7 Qbc2 Kh2 Q2b2 Kg3 h2 Qg4+ Kg6 Qd1 h1R Qdd2 Rd1 Kh2 Qe7 Qe1 Qee8 Qgh4 Kf5 Kh1 Qgf7 Qg3 Qfg8 Qg4+
Qb1bBb2/Bn4r1/4RrRK/3rbP2/1PQr3N/4Nk1n/3qRn1n/5b1r b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 b4 Kg6 c4 Kg5 g4 Kf4 f3 a5 g5 d5 g6 e5 c5 h5 c6 a3 g7 d3 c7 a4 Bh3 a2 Qc2 e3+ Kc3 d2 Kd3 d1N Bf1 a3 Bg2 h3 Ke2 h4 Qd2 e4 Bb2 d4 Nc3 d3+ Ke1 h2 Bh3 Ba6 c8Q Nd7 Kf1 Nh6 Kg2 Ra7 g8R Nf2 Na4 Nc5 Rf1 a1R Bg7 a2 Qb7 Nhg4 Qc1 d2 Qc2 d1R Qb1 e2 Qe7 e1B Qc1+ e3 Qe8 Rh5 Nc3 Rd4 Qa4 Nb7 Nd1 Rhd5 Qc4 e2 Ne3 Rb1 Bf6 a1B Rg6 Bd2 Be7 e1B Bc5 Bb5 Bb6 Ra6 Bc5 Rf6 Qa8 Ba6 Ba7 Rc1 Qb3 Rc7 Qc4 Rg7 Ne2+ Ke5 f4+ Ke4 Rhg1 h1N f5 Nh2 Bg4 Nh3 Bh5 Bg3 Re1 Bb8 Nf4 N1f2 Re2 Rdd7 Rg5 Rc6 Qb3 Rd3 Ree1 Nhg4 Be8 Bb2 Rgf1 Ng1 Rg6 h3+ Kg3 h2 Rf6 Bdc3 Kh4 Ngh3 Kh5 h1R Re2 Kf3 Rg1 Nh2 Rh6 Bf6 Ree1 B2e5 Rg4 Rd2 Nfg2 Bf1 Qc4 R7d3 Re2 Qd7 Rg5 Bd8 Rf6 Re6 Rgg6 Qd6 Rf7 Rf6 Kh6 Qd4 Rc7 Qb2 Rc8 Rd5 Rc6 R2d4 Re6 Qd2 Nh4+
3R4/6nR/1r2qNqQ/1rkr2r1/2bQ1qqb/1r2N1B1/PrBNb1nP/K7 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 Ke7 c4 Kd6 Kc2 g5 Kb2 f5 e4 b5 e5+ Kc5 e6 d5 e7 g3 e8Q b3 Qc2 f3 Qce4 g4 Bf4 g2 Be2 f2 Bd3 f1B Q8e5 b4 Qe8 g3 Qg6 Ra6 Qge6 Qe8 Nc3 Ne7 Qg6 Rb6 Bc2 d3 Qee6 d2 Qe5 d1Q Qe3+ d4 Qf3 d3 Qg8 d2 Be4 Nd7 Nh3 g1R Bc7 f4 Bb7 g2 Be5 Nd5 Qd3 f3 Nb1 f2 Na3 N7f6 Qgg3 Be7 Qgg6 Nf4 Qb1 Bg4 Qbf5 N6h5 Ng5 Bge2 Nc2 Ng7 Qd7 Rh5 Nf3 Bh4 Ne3 Qe6 Rc1 Rg5 Kb1 b2 Qh6 Qa4 Bb8 d1R Be4 Rdd5 Nd2 Qac6 Be5 Qg4 Rc3 Qce6 Ra3 Rb5 Ra8 Rb6 Rh8 Rh5 Rh7 Qgg6 Kc2 b3+ Kc3 b1R Bc2 b2 Bc7 Nd3 Bg3 Ne1 Qa4 Bd3 Qd7 Bfe2 Qa4 f1Q Qb4+ Kc6 c5 Qf4 Qd4 Bb5 Kb3 Bbc4+ Ka3 Kb5 c6 Rhg5 c7 Rf1 c8N g1Q Qh5 Rf2 Qh6 Ng2 Ne7 Qd1 Ng8 Rf3 Qc3 Kc5 Nf6 Qg1 Nf5 Qgd4 Rd1 Rd3 Ne3 Qfg4 Ka4 Qdf4 Qe5 Rdb3 Qe4 R3b5 Ka3 Rc1 Qd3 b1R Qd4+ Kc6 Bb3 Rc2 Ba4 Rb4 Bb3 Rc3 Kb2 Rc2+ Ka1 Rb2 Bc2 R4b3 Ndf1 Kd6 Rd3 Kc6 Nd2 Kd6 Qe5+ Kc5 Qe4 Rde5 Rd8 Rd5 Qd4+
nRKbB3/3n1Q2/N2k4/bN4QP/Pqb2R2/qb1br2R/2q1qn1B/1r3b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 b5 a4 g5 h4 d5 c4 f5 h5 d3 c5 b3 e5 b4 c6 d2 e6 b2 c7 g3+ Kf3 b3 Ra2 d4 Rh4 g4+ Ke2 f3+ Kd3 f2 Kc4 f4 Kc5 g2 Kb6 f3 Na3 b1Q Rc2 g3 Rb2 d3 Nc4 Na6 Kc6 Qd6+ Kb5 Nf6 Rh1 Qa3 Kc6 Nd7 Rh3 Qc2 Rh1 Rb8 Ra2 b2 Ra1 b1B Ne2 g1Q Rh2 g2 Qe1 d1Q Rh4 d2 Ng3 Qe2 Rg4 d1N Qc3 Rb3 Qa5 Re3 Bb2 Qh1 Bd4 g1B Ne4 Qh4 Nc5 Rg8 Bh3 f1B Nd6 f2 Rf4 Bh6 Bf5 Bg5 Bg6 Ba2 Bc3 Bb3 Nb5 Bh2 Be5 Rg7 Rf6 Qhb4 Rf4 Bf6 Be8 Rg1 Rb1 Bc4 Rb3 Bg3 Rd3 Bgh4 Ba1 Bc3 Bb2 Be1 Be5 Bb3 Rf8 Qeg4 Rd2 Be2 Nd6 f1B Bg6 Bd3 Rh2 Qb8 Rh3 Nf2 Bh2 Bfe2 Rf4 Bd2 Bf7 Rd1 Qb5 Bf1 Bg6 Qe2 Qa5 Rb1 Bf7 Kf8 e7+ Kg7 e8Q Bd8 Qe6 Kf8 Qc4 Ke7 Be8 Bb4 Qab5 Ba5 Qg8 Nf8 Qb7 Bg4 c8R+ Nc7 Qa7 Bdc4 Na6 Qbb4 Rb8 Bf5 Nb5 Bfd3 Kb7 Na8 Qg2 Ke6 Kc8 Ke5 Qf7 Nd7 Na7 Kd6 Qgg8 Bab6 Qg5 Ba5 Nb5+
2q1b1nK/2Rrn1r1/q1qr2Qn/PNRBB1n1/1N3BP1/n5Q1/1n5k/4b2q b - - 0 1 illegal: No possible last move
q3nKRn/1qqBQ1P1/2r5/4RN2/1kr1Q1r1/1r1PB1B1/nb4q1/1N3brr b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Kg5 e5+ Kh5 c5 g4 e3 f4 e4 g5 e2 d3 e1Q a3 e3 f5 c3 f6 h3 f7 c4 g6 c2 g7 b3 a4+ Kb4 a5 b5 a6 e2 a7 h2 Qd2+ c3 Qd1 b2 Bd2 c1R Bg5 c2 Nc3 b1Q Bh3 Qd2 Bh6 e1R Be3 Qc7 Kg5 h5 Kg6 h4 Bf1 h3 Ra2 Nf6 Qf3 Nbd7 Qf2 Rh4 Bf4 Ne8 Bg5 Rg4 Qe3 Qg2 Nf3 Ne5+ Kh6 Ng6 Bd8 Nh8 Be2 Rg1 Nd4 Bc5 Nf5 Bd4 Qe6 Qa1 Nb1 Bb2 Bd1 Rb8 a8Q Rb6 Qf3 Rc6 Ra8 Bb7 Rc8 Qa8 Kh7 Rcc4 Qfe2 Bf3 Q2e5 Be2 Kg8 Bf1 f8B+ Kb3 Bde7 Qgb7 Ne3 b4 Bd6 Ba1 Nd5 Bg2 Qd4 Re1 Qe2 Rc5 Bf4 Nd6 Rg1 h1Q Ne7 h2 Nc3 Bh3 Rg2 Rg1 Rg3 Bf1 Qde5 Qhg2 Re3 h1R Nf5 Ka3 Be7 b3 Bh4 b2 Qe7 b1R Re5 Kb3 Rf8 Ne8 Bhg3 Ka3 Bg5 Rb5 Bh6 Bb2 Nb1+ Kb3 Qe1 Ka4 Bf3 Rb3 Bd5 Rc6 Be6 Rd1 Bg5 c1N Bd7 Na2 B5f4 Rc1 Qe4+ Rc4 Be3 Ng6 Qd8 Kb4 Kf7 Nh4 Rg8 Ng6 Qg5 Nh8+ Kf8 Re6 Qh4 Rc6 Qe7+
Nq6/1b1qP3/2Qq3N/1RbrnqB1/qRrn1qQK/n3r3/k5P1/1Q1n1B2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 e4 Ke6 c4 h5 a4 d5 a5 b5 e5 f5 a6 f3 c5 h3 Kg3 f4+ Kh2 b3 c6 d3 a7 b2 c7 h4 Qe1 d2 Ra2 d1N Bc4 b4 Ra1 b3 Be2 f2 Ba6 f1Q Nf3 d4 Be3 Kd5 e6 d3 Bc5 d2 Ra2 Nd7 Bb6 Nh6 Ra1 Bb7 c8Q Bc5 e7 Ne5 Bb5 Qd6 Qe2 Rd8 Nd4 f3 Ba5 f2 Ra3 Nf5 Qc7 Rac8 Nf3 Nd4 Qe1 Rd7 Ba4 Kc4 Nc3 b1N a8Q b2 Ra2 Na3 Qb6 b1Q Bb5+ Kb3 Na4 Qc4 Qc6 f1Q Ng5 Qbf5 Qb8 Q1f4+ Qg3+ Qcd3 Ra1 Rdd8 Rb1+ Ka2 Rf1 Qc2 Nb6 Qa4 Rf3 Qdd7 Rb4 Rc7 Kg1 h2+ Kf1 h3 Na8 Qd6 Nf7 Rcc8 Nh6 Rc7 Qf2 h1Q+ Qg1 Rdd7 Qc8 Qhh2 Rf2 Qhg3 Qg8+ Qgb3 Qg4 h2 Ba6 h1R Rb5 Qfg3 Rf4 Rh3 Bc3 Qe3 Bb2 Qee4 Bc1 Re3 Qh1 Qg8 Kg1 Qb8 Kh2 Ndf3+ Kh3 Nd4+ Kh4 Qf3 Re4 Q3f4 Qf1 Ne6 Qd3 Qdd4 Qd6 Nb2 Ng8 d1Q Ra5 Re1 Rb5 Qf1 Qgg3 Ba7 Bf4 Re3 Bg5 Q1f4+ Qg4 Rc3 Qf1 Bc5 Qc6 Q1d3 Qc1 Nd1 Ra5 Qd5 Rb4 Qd2 Bd3 Rc4 Nh6 Rd6 Qa6 Qdc6 Be2 Qd7 Bf1 Qd5 Rab5 Nd4 Qc6 Qd5e6 Rb1 Rd5 R1b4 Qed6 Qb1+
3bN1K1/kqqrNBB1/1q1Q1r1B/R2qb1nQ/5bb1/1P6/rRP5/1n3r1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 f5 h4 a5 e4 g5 e5 d5 h5 Kd7 h6 Kc7 h7 Kb6 b3 a3 e6 g3+ Kf3 g2 e7 a4 e8Q d3 Rh2 a2 Nh3 g1B Qh5 d4 Rd2 a3 Qe8 g4+ Kg2 g3 Kf3 g2 Qe7 Nc6 Qd6 Bh6 Qe7 Na7 Qee2 Nb5 Qf2 Nc3 Qde2 Nf6 Qg3 Rf8 h8B Nh7 Qd1 Rf6 Re2 d2 Nf2 d3 Qe1 d1R Qh4 d2 Re5 Qe7 Ne4 Qb7 Bg7 Ra5 Rb5+ Ka7 Qeg3 Bb6 Qgh2 g1Q Qh5 Bd8 Bc4 Qgb6 Kg2 f3+ Kg3 f2 Kh4 f1Q Qg3 Qf4+ Qhg4 Qfc7 Kh5 f4 Rg5 f3 Bf7 f2 Qh2 f1Q Rc5 Qh1 Nd6 Ra4 Qd4 Bh3 Ne8 Bg4+ Kh4 Be3 Qd5 Rd4 Qh5 Rdf1 Rf5 d1Q Ra5+ Kb8 Bd2 Rd7 Bc1 Bd4 Bch6 Be3 Qe5 Qdd4 Qd6 Ng5 Qh3 Bf4 Qh2 Nce4 Nc3 Nd2 Rb1 a1B Nd5 a2 Ne7 Qdd5 Qh3 Bc3 Rb2 a1R Qh2 Nb1 Qh3 Be6 Kh5 Bce5 Qh2 Bh3 Qe2 Ra2 Qh2 Rf5 Kg6 Bg4 Qh3 Bd2 Qh5 Bdf4 Bh8 Rf6+ Kg7 Qhg1 Kg8 Qgh1 Rb5 Ka8 B8g7 Ka7 Ra5+
1n1qBRR1/1r4b1/2nr1Pr1/qn3Qq1/NB2K1bP/N2N1Q1r/4n1qq/7k b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Ke6 f4 Kf5 a4 b5 h3 e5 a5 d5 a6 g5 a7 d3+ Ke3 d4+ Kf2 g3+ Kg2 e3 Kf3 b3 c5 d2 c6 e2 c7 e1Q Nc3 b4 Be2 g2 Ra5 b2 Na2 b1N Qc2+ d3 Bb2 d1Q Rb5 b3 Bc3 g4+ Ke3 b2 Qc1 d2 Rb4 e4 Rc4 g3 Bd4 Nc3 Qb1 Ne7 Bf6 Nec6 Rh2 Bg7 Be5 Qf1 Qc2 b1R Bf6 Qc1 Nb4 Nb5 Nf3 g1N Nd3 d1R+ Nd2 g2 Bh5 Ne2 Be8 g1Q+ Rf2 Qh2 Be7 Qfg2 Bb4 Rg8 h4 Kg4 f5 Kh3 f6 Bg4 c8N Rb3 Rd4 Kg3 Qb1 Qc5 Nb6 Qg5+ Rf4 Rh1 Ndc4 Kh3 Kd2 e3+ Kc2 Rd1 Na4 Kg3 Na3 Kh3 Ndc5 Kg3 Rd7 Rd6 Rf7 Rbd3 Re4 Kf3 Rf8 Kf2 Qb2 Kg1 Qe5 Kh1 Qd5 Na6 Qf5 Rb8 a8Q Rb7 Rc4 Nab8 Rf4 Nec3+ Rf2 e2 Rf3 Re3 Nd3 e1Q+ Rf2 Ne2 Rf3 Qeg1 Rg3 Qd5 Rg2 Rh3 Rg3 Qgb6 Rg2 Qa5 Rg3 Qh5 Kd2 Qdg2 Ke3 Qf1 Ke4 Qg5 Qa7 Qfg1 Qaf2 Qgg2+ Q5f3 Rh8 Qc5 Rh6 Qf5 Rg6 Bc3 Qh6 Be5 Bh5 Qe6 Bh8 Qg4 Rg5 Qf5 Rg8 Rg7 Bg4 Bc3 Qg5 Rg6 Rgg7 Bb4 Rg8 Rh6 Rg6 Rh7 Bg7 Rhh8 Qd7 Rhg8 Qdc7 Rf7 Qd8 Rff8
1RQ1K3/n5qk/qB3b2/b3nBRn/5Bnr/1bNPbqN1/q2P2rQ/5r2 b - - 0 1 illegal: Other
2R5/3Rqbq1/2bN2N1/Bq2rnkr/Bn2Pnqb/Q2r2P1/1Q3r2/b1KB4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Ke7 d4 Kf6 Kd2 h5 g3 b5 a5 c5 d5 c3+ Kc2 f3 a6 h3 a7 h2 e3 b3+ Kd3 f2 d6 c4+ Ke2 h4 d7 h3 Nf3 c2 Kd2 b4 Be2 f1Q Ra4 b2 Ng5 c3+ Kd3 b3 Ra6+ Nc6 Qe1 Bg7 Ra5 Qf3 Re5 Qg4 Re7 Nh6 Bd2 c1B Re4 c2 Rg1 h1Q Ba5 h2 Bd2 Nb4+ Kc3 Qe7 d8Q Nf5 Qd1 Rh5 Qe1 Be6 Qf8 Rd8 Rc4 Qhb7 a8B h1B Qd1 Bc6 Na3 b1Q e4 b2 Kb3 Rd3+ Bc3+ Kg6 Nh7 Bg5 Rh1 Bh4 Nb5 c1N+ Ka3 f6 Nd6 Bf7 Bf3 Ne2 Qh8 Nf4 Nf8+ Kg5 Qa4 Qf1 Bd1 b1R Qa6 Rb2 Ng6 Rf2 Kb3 Qb5 Qa3 Qg1 Be2 Qa1 Bd1 Bce8 Bc2 Na6+ Qb4 Re2 Bd5 Rd1 Bd2 Ne3 Rc7 f5 Rh2 Nfg2 Bc3 f4 Nf5 f3 Rc4 f2 Rc8 f1R Be6 Rdd2 Bd1 Bc6 Bc4 Rd5 Bd3 Ree1 B3c2 Nf4 Rd2 Rf2 Rd3 Ree2 Be1 Qd4 Ka2 Rd2 Kb1 Qdf6 Ba4 Rc5 Rd6 Rd3 Rd7 Qc3 Nd6 Nf5 Qb3 Qcf6 Ba5 Nb4 Qa3 Rcd5 Nf8 Qh6 Ng6 Ba1 Qd4 Re5 Kc1 Qg7 Qdb2
n2R3b/qq1r1B2/2qQN1R1/2Nr1bBr/b3PnPQ/n3k2n/r1R5/1b2K3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 a4 Ke7 g4 Kf6 c4 Ke5 c5 Ke4 c6 h5 e3 f5 a5 b5 c7 d5 a6 f3 a7 d3 Ne2 d4 Ra5 f2+ Kd2 b3 Rh2 b4 Ng1 b2 Qc2 b3 Qc3 f4 Ne2 h3 Qc5 f3 Kd1 h4 Ra2 d2 Bg2 f1B Bh1 Qd5 Qb6 Na6 Qb7 Nf6 Ra1 Qc6 Ng1 Rh5 Ra5 Bg7 Qb8 Bf5 c8Q Nd5 Ra4 Bb5 Ne2 Bh8 Ra5 Nac7 Ra3 Nf4 Qg8 Ba4 Rg2 h2 Rf2 h3 Rg2 f2 Ra1 Kf3 Nbc3 b1B Qf7 b2+ Qfb3 Qb7 Qd8 Qc6 Qh4 f1Q+ Qe1 Qg1 Nd5 Ke4 Nec3+ Kd3 Rg3 Qf2 Bf3 h1Q Rg2 h2 Ra2 Qfg1 Rf2 Qb7 Rf1 Qhg2 Qh4 h1N Re1 Rb8 Rf1 Na8 Nc7 Rd8 Ne6 Rd7 Bc6 Qd5 e4 Ke3 Bb5 Qdc6 Ba6 Ng3 Bb5 Nge2 Bc4 Nh3 Qc2 Nef4 Bb3 Nc7 a8R Qf2 Rb8 Na8 Rd8 Ng6 Ne2 Kf3 Qc3+ Bd3 Nc5 b1N Bc2 Na3 Qb2 Be6 Bb3 Bb1 Na6 Bc4 Qc2 Be6 Ng1+ Kf4 Nf3 Qg1 Qc5 Qf2 Bb2 Qg1 Ke2 d1R Bc1+ Rd2+ Ke1 d3 Qb4 Qga7 Nd4+ Ke3 Rf7 Bf5 Rg7 Kf4 Qc5 Re7 Bg8 Rd7 Ne6+ Kf3 Qf8 Rb2 Bg5 Ngf4 Rg6 Ke3 Nac5 d2+ Kf1 Rc2 Bf7 Rb2 Qd6 d1R+ Qe1+ Re2 Rb2 Rd5 Qh4 Rc2 Ke1 Rcd2 Rc2 Rg2 Rc1 Ra2 Rc2
2RNnNq1/1b3r2/6n1/1nR3bQ/1KPk2r1/r1n3b1/rQ2q1P1/1B1q1BBb b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Ke6 a4 Ke5 f3 d5 a5 h5 a6 b5 a7 e3+ Kd3 h3 Ra2 b3 Rh2 b4 Ra3 h4 Ra4 b2 Qb3 e2 Nc3 e1B Nd1 b1N Ra3 Bb7 Rh1 h2 Qb2 b3 Ne2 h3 Ng1 Nc3 Bd2 Rh4 Ne3 Bg3 Qc2 b2 Ra6 b1R Rc6 Nb5 Ne2 Rb3+ Qc3 Rg4 Rg1 h1R Ra6 h2 Ra1 Nd7 Nc2 Ra3 Nb4 Ngf6 Nf4 Bh6 Ne6 Qg8 Nf8 Ne8 Rb1 Ra2 Qb2 Bg5 Kc2 e6 f4+ Ke4 Kb3 e5 f5 d3 f6 d4 Bc1 d2 f7 d1N Nc6 d3 Nd8 d2 Kb4 Ndc3 Ra1 d1Q Bf4 Kd4 Rb1 Rc8 a8B e4 Bb8 e3 Ra1 Ra6 Ra5 e2 Bc7 e1Q Bd6 Bf3 Be4 Qee2 Bb1 Bb7 Bb8 Ne5 Bc7 Na7 Rc5 Ra2 Nd7 Qde1 Bh7 Ra8 Bd3 Ra1 f8Q B3h4 Qh6 Qc1 Nf8 Nb5 Bd6 Ng6 Qh8+ Qe5 Bfe2 Qc2 Rc1 Qd1 Qh5 Rf1 Bb8 R1a5 Ra1 h1B Bb1 Rf7 Bf1 Qee2 Bh2 R5a7 Ra6 Bg3 Rac6 Ra2 Rc8 R8a3 Bg1+
1nN2Nqn/K1bb2Q1/1rqnr2r/3N2P1/1r1Bk3/3qn3/P4bB1/Q3R1qR b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 g4 Kg6 f4 e5 c4 h5 c5 b5 c6 d5 c7 b3 g5 Kf5 Ba3 e3+ Kd3 h3 Bb4 h2 Bc3 b2 Qc2 h4 Qe2 e4+ Kc2 h3 Kb3 b4 Qb5 d3 Nd2 b1R+ Bb2 e2 Qc5 e1B Qc4 e3 Bg2 e2 Qc2 d4 Kc4 b3 Kb5 Ra4 Kb6 Nh6 Qc1 Bd6 Bc3 b2 Ba5 Qg8 Qd1 Bd7 c8Q Nf7 Bb4 Rh6 Bc5 Nh8 Ne4 d2 Bf3 d3 Qc1 d1Q Qa6 d2 Ka7 Bc7 Bd4 Bh4 Bg2 e1R Ne2 Bf2 Rg1 h1Q Bf3 h2 Rf1 Qdb3 N2c3 d1N Rg1 Qg2 Rf1 h1Q Rg1 Qhh2 Rh1 Rc4 Qd6 Qhg1 Qe7 Qc2 Qg7 Qd3 Ne2 Rcc6 N2c3 Rb6 Nd6+ Ke6 Bh5 Qc6 Nc8 Kf5 Bf3 Ree6 Bg2 Ne3 Qd1 Qe2 Nd5 Qd3 Bf1 Ke4 f5 Rc1 f6 b1N f7 Rc4 f8N Nd2 Qc1 Rcb4 Qb2 Ndc4 Re1 Nd6 Qa1 Ne8 Bh3 Nd6 Bg2+
2B3N1/b1P2Knb/1q2nN1R/5r2/2b1r3/R3qrrR/n1PB2kb/q2Q1Qn1 b - - 0 1 illegal: Other
4BN2/4r3/2P1q1rQ/2k1R1n1/r3bRq1/1n1r1b1p/Q2P1n1B/rqbBKN2 b - - 0 1 illegal: No possible last move
3qqRN1/2kbPB2/1nr2n2/1Qb3rb/1Rq2bP1/3p1KN1/1b1N2rQ/Bn6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 h5 e4 a5 b4 f5 c4 d5 e5 Kd7 c5 f3 b5 f4 b6 a3 b7 a2 e6+ Kc7 g3 a4 c6 d3 Bh3 d4 Ba3 d2 Qe2 d1B Qb5 Ra5 Qf5 Bc5 e7 Nd7 b8N Rh6 Qg6 Nb6 Qf6 Bd7 Bb4 a3 Qe6 Nf6 Bg2 h3 Nc3 h4 Qf5 h2 Ne4 h3 Rb1 a1B Nd2 a2 Bf1 Bb2 Qg4 a1B Be2 d3+ Kf1 f2 Qh4 Be5 Ba3 Bab2 Bh5 Bed6 Bf7 Bh5 Ne2 Qe8 Rg1 h1R g4 h2 Kg2 f1N Ng3 f3+ Kh3 f2 Kg2 Rb5 Kf3 Bf4 Bb4 Ra5 Bc3 Rb5 Rg2 Rg1 Bd4 h1Q Qh2 Bca3 Bc3 Rg5 Bd4 Bc5 Bc3 Bc1 Rb4 Qd8 Ba1 Bb2 Qh4 Qh3 Rh2 Rg2 Rh1 Ne3 Rf1 Qh1 Qh2 Nd1 Be8 Nc3 Bf7 Kc8 c7 Nb1 Nc6 Rhg6 Nd4 Rh6 Ndf5 Qg1 Re1 Qe8 Re2 f1Q+ Rf2 Qc1 Rf1 Rhg6 Nh6 Qc4 Ng8 Qgd4 Rf2 Kb7 Rf1 Kc6 c8Q+ Kd6 Qa6 Kc7 Re1 Qdd5+ Re4 Qda8 Qb5 Qad8 Re2 Nfd5 Re5 Rc6 Rf5 Nf6 Be6 Ne4 Rf8 Nf6 Bf7
2qn1kn1/1N1P1b2/q7/3rBKb1/bP1b3R/7p/1BB1RnQ1/qNb1r1rQ b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 h5 Ke3 e5 f4 c5 d4 a5 g4 c3 b4 c4 d5 c2 f5 h3 g5 a3 d6 c3 g6 a2 f6 h2 g7 h4 Qe2 a4 Qg2 a3 Qg3 h3 Nd2 Bd7 Bg2 Qc8 Nb3 Ra5 Qg5 Ba4 Qf4 Rd5 Qh4 Nc6 Qe1 Nd8 Bb2 c1B+ Qd2 c2 Rb1 a1Q Na5 a2 d7+ Kf7 Ne2 Bc5+ Bd4 Rh5 Nb7 Rg5 Re1 h1B Nc3 Rg6 Bf3 Rg1 Bd1 Bf3 Re2 Bh5 Rb2 Bg6 Nb1 Bb6 Kf2 e3+ Kf3 e4+ Kf4 Ba7 Re1 e2 Be5 e3 Qd3 Bd2 Qe4 c1B Bc2 Bd4 Qh1 Bh5 Rf1 e1N Kf5 e2 Rf4 Nd3 Rh4 e1R Bb3 Bh6 Re2 Bhe3 Bc2 Bg5 Ke4 Ke6 f7 Ke7 Kf5 Nf2 f8B+ Kf7 Be7 Qc5 Bd6 Qc8 Bb8 Ke7 Ba7 Bf7 Bb6 Qac3 Bc7 a1Q Bb8 Q3c6 Bc7 Nf6 g8Q Qa6 Qg7 Ng8 Qg6 Bgf4 Qgg2 Kf8 Bb6 Bg5 Ba7 Bc3 Be3 B3b2 Bd2 Bd4 Bc3 Bc5 Bd4 Ba7 Bc3 Bd4 Bb2
1BQ2q1n/1qqN1qq1/R1q2rB1/2PN1p1K/2P3QR/1rn3bQ/1b2k3/1b4q1 b - - 0 1 illegal: Other
2k5/b1Bb1r1n/qQq2RBb/P5N1/b2b2Rr/B1p2N1Q/4r1Pb/b1n4K b - - 0 1 illegal: No proof kernel
3N2K1/2bbBQb1/1b4rP/Nn2b2b/1q1nQ3/3r1b1p/1PQR1r2/1q1B1kR1 b - - 0 1 illegal: No proof kernel
b2n1q1n/QB4Rn/r2q1P2/NN3n1r/Kb1n2R1/2Ppk3/1Q5B/1q1nnB2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kf6 a4 Kf5 g3 d5 c3 b5 Kc2 e5 Kb3 h5 a5 e3 a6 Ke4 a7 d3 f5 e2 f6 e1N g4 d2 g5 d4 g6 d3 g7 h3 Ra2 h2 Be2 h4 Ra5 h3 Ra2 Nf3 Ra4 Qd6 Bf1 Nd4+ Kb2 b3 Ra1 b4 Ra4 Nbc6 Ra3 Nge7 g8Q Ng6 Bg2+ Ke3 Qh5 e4 Qe5 Rh5 Qed5 Nh8 Bf1 Bb7 Qc4 Nd8 Ka1 b2+ Ka2 Bd5 Rb3 Bc6 Na3 b1N Bb2 d1N Qb5 Nd2 Qgc4 N2f3 Qf7 Ng5 Nf3 Nh7 Rg1 h1N Ne5 h2 Rg7 Ng3 Qbb7 h1Q Nb5 Ngf5 Ba3 Bd5 Nc6 Qg1 Qfe7 Qg6 Qf7 Qh6 Na5 Be7 Rg4 Qf8 Qb6 Bc6 Rb2 Bb7 Rbg2 Bc6 Rg7 Bb7 R2g4 b3+ Kb1 b2 Ka2 Bc6 Bb4 b1Q+ Ka3 Rc8 Qa2 Ba8 Qb2 Rc6 Qc7 Ra6 Ka4 Kf3 Qd7 e3 Ba3 e2 Qb7+ Qc6 Bd6 e1N Bh2 Bb4 Qc7 Qcd6 Qf7 Bd5 a8B Ke3 Qa7 Be4 Bb7 Bf3 Bc8 Ba8 Bb7
3Q1kN1/rB4qb/pKbRn2P/1b2rbQb/2N3bB/1R2n3/6Pq/Q1b2n2 b - - 0 1 illegal: No proof kernel
K2QR3/B2nr2N/3k2bP/nQr5/1rN2nPp/1nq2R2/B3n3/Rb3rbr b - - 0 1 illegal: No proof kernel
1Q5K/3bb3/n5NB/Q2r3N/5rpq/PR2Pr2/r1bn1rk1/RBrnqN2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 c4 Kd6 h4 Ke5 h5 Ke4 h6 g5 c5 d5 c6 b5 e3 f5 h7 g3+ Ke2 b3 c7 d3+ Kd2 f3 Kc3 d2 Ba3 g2 Bd6 b4+ Kb2 f4 Bc4 g4 Qf1 d1N+ Kc1 f2 Kd2 f3 Rh3 d4 Rh6 b2 Bc5 b3 Rf6 d3 Bf7 Na6 Bd6 Bd7 c8N Be7 Qe2 f1R Nh3 g1Q Qe1 f2 Nf4 Kf3 Nh5+ Kg2 Bf4 Qh1 Rg6 Nf6 Bh6 Rf8 h8Q Qh4 Bg8 Rf7 Bh7 Qa5+ Nc3 b1B a3 b2 Rg5 Bc2 Rb5 b1R Rb3 Rb8 Qd8 Rb4 Ne2 Rb2 Neg3 Ra2 Qh8 Rh1 Nf1 Rh3 Qd8 Rf3 Qb6 Rbf4+ Qb4 Nb2 Kc3 Ne4+ Kd4 d2 Qb8 d1R+ Qd2 Qb4+ Ke5 R7f6 Qd5 Qe1 Qa5 Nd2 Bg6 Rc1 Bh7 Nd1 Bf5 Bb4 Ne7 Rd6 Ng6 Rdd4 Bd3 Be7 Be4 Be8 Bf5 Rd5+ Ke6 Bd7+ Kf7 Nc7 Kg7 Na6 Nfg3 f1R Kh8 R1f2 Nf1 Nc5 Bd3 Na6 Rb7 Bb3 Bb1 Bc2 Rb3
R1qnRq1Q/1Q3bn1/rBN1nq1k/1n2PbrB/2K5/b1n4N/2pP4/2n3B1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 g5 Ke2 b5 a4 f5 h4 Kf7 a5 Kg7 h5 c5 a6 g3 e5 g2 a7 f3+ Ke3 g4 Qa4 b3 Qb4 b2 Rh4 c3 Rh3 g3 Qa5 f2 Qa2 c4 Ne2 g1N Qa3 g2 Rg3+ Kh6 Rg4 c2 Qc5 c3 Qd5 f4+ Kd3 f3 Ng3 b4 Ra3 b3 Ra2 Be6 Ra3 Bf7 Rb4 Nh3 Qd4 g1N Rb5 Ne7 Qd5 Nbc6 Kc4 Rg8 Rb8 Rg5 Be2 f1Q Nh1 Nf4 Nf2 Qc8 Nh3 f2 Ra4 Nf5 Na3 b1B Bb2 c1N Nc2 Ba3 Nd4 Nd8+ Nc6 Nfe6 Ra6 c2 Bd4 b2 Qb5 Nf3 Qb7 Nfg7 Bc5 Kh7 h6 Nfd4 Bb6 Kg6 h7 Kh6 h8B Nb5 Ra4 Bg6 Ra5 Bf5 Bd4 Qd1 Bh5 Qf3 Be3 Be4 Ra6 Qf8 Bd4 Bf5 Ra5 Ne8 Bf6 N8g7 Be7 Qf6 Bb6 Qf8 Bec5 f1Q+ Kd5 Qf4 Bg1 Qf6 Ra6 Qb4 Ra5 Qbf8 Kc4 Nb3 Qf7 Ba2 Qg8 b1N Ra4 N1c3 Ra6 Nf7 Ra5 Qb7 Rd8 Qc8 Re8 Nfd8 Ra6 Rb8 a8Q Rb7 Bbd4 Rb6 Ra7 Ra6 Qb7 Nbc7 Ra8 Nc1+ Qb3 N7b5 Bdf2 Bd6 Bb6 Ba3 Bc7 Na7 Ba5 Nc5 Kd4 N3a4 Qb6 Bf7 Qb7 Nce6+ Kc4 Nc3 Bab6 Nab5 Qh8+
1n1Qqbbr/1Rb3nB/1p6/Pq1q1kqn/2N5/3r1qB1/1RQ2P2/K4BNq b - - 0 1 illegal: No possible last move
Bqqr1B2/rnr3qP/RN3R2/rbb2b1K/r2k3N/Np6/1r1n1P1Q/6Q1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 a4 Kf6 c4 Ke5 h4 d5 h5 b5 a5 g5 h6 e3 h7 d3+ Ke1 d2+ Ke2 b3 c5 g3 Kf3 g2 a6 d4 a7 g4+ Kg3 b2 Kh4 b4 c6 e2 c7 e1R Qc2 d1R Na3 b1Q Bh6 d3 Ra2 d2 Bg5 g3 Rh2 Re4+ Kh5 Bf5 c8N Nc6 Bd3 Na5 Be2 Nb7 Ra1 Kd4 Rh3 e5 Nc4 Bc5 Ra6 Nf6+ Kh6 Rc1 Bg4 d1B Bh4 Be2 Ne3 Bb5 Nd6 Qc8 Nd1 Rd8 Nc3 Rf4 Qa4 e4 Bh5 e3 Nd5 e2 Nb6 e1R Ndc4 Re5 Na3 Ne4 Qd1+ Nd2 Bf3 Rc2 Kg5 Rb2 Kh5 Re7 Rh2 Rc7 Be7 Re4 Bf8 Ree7 Nh3 g1R Nf4 g2 Ng6 Rh1 Be4 g1Q Nh4 Qg7 Qg1 Red7 Rg2 Rf7 Rg6 Rh3 Nac4 Ra3 Rf6 Ra4 Bh1 b3 Qh2 Qd3 Na3 Qdg3 Bd5 Rb8 a8Q Rfd7 Qa7 Ra8 Qb8 Ra7 Qh1 Re7 Qf1 Re1 Qg1 Ra1 Be4 Ra5 Nac4 R1a4 Na3 Re7 Qf4 Qh2 Qh6 Qhb8 Qf4 Rc7 Qfh2 Nd6 Ba8 Nb7 Bd6 Rb4 Be7 Rba4 Bf8
4Q1r1/br1Bp2N/B2r1rbK/3R2Q1/3QPnP1/n2qq1q1/b6k/rR3Nr1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 f5 cxd4 f6 h4 Be3 gxf6 Bf4 f5 Bg3 hxg3 Qd2 f4 Qc1 Qc7 Qd1 Qd8 Kd2 f5 c4 Kf7 h4 Ke6 e4 Ke5 a4 b5 h5 d5 a5 f3 a6 Kf4 c5 g2 a7 Kg3 c6 b3 c7 f2 h6 b4 h7 f4 Rh6 b2 Ra2 f3 Rh1 d3 Ke3 b3 Ra6 d2 Ra3 d4+ Kd3 Qd6 Nc3 b1R Rh2 b2 Na4 Nf6 Ra1 Rg8 h8Q Nh5 Qe5+ Nf4+ Kc4 d3 Qe1 d1R Rh6 d2 Re6 Bg7 Qa5 Nc6 Qh5 Nb4 Qg5 Bd4 Nb6 Nc2 Nd7 Kh2 Nf6 Qb6 Bd3 f1R Rd6 f2 Nh7 Bf5 c8B Bg6 Rd5 Rb8 a8Q Rb7 Qb8 Rbc1 Bd7 b1B Qd8 Be3 Kc3 Ba2 Ba6 Rb1 Qa8 Na3 Qe8 Qd6 Qe2 Ba7 Qd3 Rfe1 Qc4 f1R Qd4 R1b6 Rb1 Qc7+ Qc5 Rd6 Kd4 Rc1 Ke5 d1Q Qd4 Qd3 Rb3 Ra1 Rb1 Kg3 Nf3 g1Q Nd2 Qge3 Bf5 Kh2 Bd7 Bf7 Kf5 Rd1 Qgf6 Bg6+ Kg5 Rg1 Kh6 Rdf1 Qg5 Qcc3 Nc4 Qce1 Nd2 Q1g3 Qa8 Ne2 Qb8 Rff6 Qe8 Nf4 Nf1+
3r4/4p1Nb/1b3k1K/BR1P1rRQ/1nN1qQ2/1bP1q1b1/2bb2nq/n2R3B b - - 0 1 illegal: No proof kernel
1N1BK2Q/1r1P4/2B2qn1/1r3p1P/1nQ2bNk/rbRq2nR/n2n1qnN/8 b - - 0 1 illegal: No possible last move
5QqB/2bP1N1r/1rB2B1Q/1pP1b1r1/2kn1NnK/2qR2n1/1rb2r2/2R2r2 b - - 0 1 illegal: No proof kernel
r3QR2/1kr4N/bB6/bn2bbK1/1q1N1BB1/b1q2Q1r/P1p2Pr1/1rn1R3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 b5 d4 h5 g4 e5+ Ke3 h3 d5+ Kb7 d6 c5 d7 h2 g5 c3 g6 c4 g7 h4 Qg4 h3 Qf3 b3 Be2 c2 Qg3 b2 Bg4 c3 Be2 b4 Qf4 b3 Qf5 Qe7 d8B Nd7 Bh5 Rh7 Qg5 Ngf6 g8Q Qb4 Be8 Nd5+ Ke2 e3 Kf3 e2 Bc7 e1B Qf6 e4+ Kg4 e3+ Qd4 e2 Qe4 Nc5+ Kg5 Bg7 Qe7 Nd3 Qh8 Be5 Be3 c1B Na3 b1R Qd8 b2 Ba5 Nc7 Qd4 Nb5 Qg8 Rc7 Qh8 c2 Bh5 Bf5 Qh4 Bed2 Bb6 e1Q Nf3 Bdc3 Rf1 h1B Qg4 h2 Rg1 Bg2 Qg8 h1R Bf4 Bf1 Qe8 Rh3 Qg2 Qe3 Bg4 Qed4 Qg3 Be1 Qg2 Qdc3 Qh1 Be3 Rg2 Bc5 Rh2 Nc1 Rg2 Na7 Nb5 Bd2 Nbd4 Ba6 Rg3 Nb5 Qg2 Qa5 Qh1 Ba3 Rg2 Qab4 Rh2 Rg3 Rh8 Rh3 Rf8 Nb3 Bh5 Rg1+ Bg4 Rg2 Re1 b1R Re4 Qa4 Qd1 Qb2 Re1 Nc1 Qe2 Be6 Kg6 Ba5 Ng5 Qc3 Nh7 Qab4 Kg5 Bf5 Qf3+
b1n1n3/Nq1n4/q1q2n1r/nq6/k2B1QP1/bB1r1Rq1/R2PKp1N/R1Q5 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 g4 Kd7 e4 Kc6 a4 h5 a5 Kb5 e5 c5 e6 f5 e7 b3 e8R f3 a6 f4 a7 b2 Ra2 h3 Re6 h2 Rf6 h4 Rfa6 h3 R2a4 Qd6 Kf2 Nf6 Be2 Nbd7 Ra3 Ne8 Kf1 Rh6 Rd3 c3 Ra3 c4 Kf2 c2 Qf1 c3 Qe1 b6 Ra4 Bb7 Rc4 Rc8 Rc7 Ka4 Rc6 b5 Rd5 b4 Rb5 b3 Na3 b1Q Rcc5 b2 a8Q+ Qa6 Qa7 Ba8 Rc7 Ndf6 Qf1 Rd8 Nc4 Ba3 Rf5 Qa2 Qb6 b1N Qd1 Qb3 Rfc5 Bb2 Bd3 Na3 Ke1 Nb5 R5c6 Na7 Rc5 Nc8 Ne3 Rd5 Kf2 Ba3 Nc4 Nd7 Bb2 c1N Rb5 c2 Qd4 Ndf6 Bh7 Nd3+ Kf1 c1N Bg6 Nc5 Bf7 Ncd7 Rbc5 Rd6 Rf5 Rd5 Qe1 Qb8 Ba1 Nb3 Rb7 Na5 Rb2 Qbb7 Ra2 Qbb5 Qde4 Rd3 Bd4 f2 Ke2 f1Q+ Kd1 f3 Ne5 f2 Ngf3 Nc5 Nc6 Qg1 Ke2 Qg3 Na7 Ncd7 Rg1 h1Q Bb3+ Kb4 Qb1 h2 Qc2 Qhg2 Rga1 h1Q Nh2 Qc1 Qe5 Qgb7 Qe3 Qch1 Qc1 Qhd5 Rf3 Qdc6 Bg8 Ka4 Qf4 Qbc7 Bd5 Q7b7 Bb3+
4b1bq/1Qb2n1n/4P2B/RPq3bB/p1bRNrQ1/5qr1/2q1k1N1/2q3QK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 g4 Kf6 Kg2 Ke5 c4 Ke4 b4 d5 g5 f5 c5 a5 e3 h5 b5 d3 c6 d2 c7 h3+ Kh2 f3 g6 f2 g7 d4 Ra3 f4 Ra2 d3 Qe2 d1Q Na3 d2 Qc4+ Qd4 Rc2 h4 Nb1 a3 Qa4 a2 Qc4 a1B Bb2 a4 Rc3 f3 Na3 Nh6 g8Q Bd7 c8Q Qc1 Nc2 d1Q Q4c7 Be8 Rc6 Nd7 Na3 Nf7 Ra6 Bd6+ Qg3 Nf8 Ra5 Nh7 Qc4 Qdc2 Bc3 Bc7 Qa6 Rg8 Qgd6 Rg3 Bg2 f1Q Nb1 Qff2 Qe2 Qh8 Bg7 Bf6 Qc5 Bg5 Bh6 Rd8 Qd1 Rd4 Nd2+ Kd3 Qb7 Rf4 e4 Qfd4 e5 f2 Qg4 f1B Qcb6 Qdc5 Bf3 Ke3 Q6a7 Bc4 Ne2 Kf2 Rd1 Ke3 Kh1 h2 Ng1 Kf2 Be4 Ke3 Ngf3 Ke2 Ne1+ Rgf3 Kg2 h1B+ Kh2 h3 Bg6 Bg2 Bh5 Bf1 Kh1 h2 Ne4 Bh3 Qg1 Bhe6 Rd4 Bed5 Ng2 Be6 Bg6 Rg3 Qaa8 Nd8 Qaa7 Bg8 e6 Nf7 Bh5+ Rgg4 Qab8 Bb6 Qe5 Rf6 Ne1 Bc7 Qeg3 Rf3 Kg2 Rd3 Nf3 Rf4 Qg4 h1Q+ Kg3 Qh4+ Kg2 Qg3+ Kh1 Ra3 Ne1+ Raf3 Qh3 Qg4 Qh4 Rg3 Ng2 Qf3 Qg4
rkb5/1r1PnR2/4bKNb/q1q2BnR/Pb1B2B1/3n1n1b/4pnQ1/2N1Q3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 b5 Kd4 e5+ Kd5 h5 f4 c5 g4 c3 d4 e3 a4 Kc7+ Ke4 h3 d5 h2 g5 c4 f5 b3 g6 h4 f6 b4 f7 h3 g7 e2 Nf3 e1N Bd3 c2 Rf1 h1B Ra3 b2 Ra1 c3 Qd2 h2 Ba6 b3 Bb7 Rh7 Qh6 Bb4 f8Q Nf6+ Ke3 e4 Kd4 e3 Ke5 e2 g8B Bg2 Qh3 h1N Na3 b1B Qh2 b2 Nh4 Nf2 Be6 Ba2 Be3 c1B Nc4 b1N Ng6 c2 Na5 Nd2 Bd4 N6e4 Bg4 Ng5 Nb3 Bh3 Qg2 Re7+ Kf6 Ndf3 Qg8 Nc6 d6+ Kb8 Qh7 Be3 Qh4 Qa5 Nc1 Ned3 Rb1 Rc7 d7 Ne7 Be4 Be6 Bef5 Rb7 Rb2 Bbd2 Rb5 Bb4 Nb3 c1Q Rd5 Qcc5 Nc1 Nd1 Qe1 N1f2 Be4 Nf7 Rh5 Bed2 Bef5 Bh6 Rh1 Bf8 Rh7 N7g5 Rf7 Bh6 Qgg1 Bf1 Rh5 Bh3 Qg2
2K3N1/1nPr2r1/Q2q1B2/1nb1k1Nn/RRrN4/q2Pn1r1/2Brp1b1/1Q3n2 b - - 0 1 illegal: No proof kernel
1R1Qq2b/2q4b/1q3r2/k2nb3/r2RB3/NrRQ1nB1/b1pqPKPN/7b b - - 0 1 illegal: No proof kernel forced: bxLB
1B6/2Nb1bBn/2k1qb2/Q1n3n1/2P2rBn/p1r1q1Q1/NR3Pnq/R4K1b b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 c4 a5 g4 h5 b4 e5 b5 d5 b6 Kd7 g5 d3 b7 d2+ Ke2 a3 g6 e3 g7 a2 Qb3 d1B+ Ke1 e2 Qb2 a4 Bh6 e4 Bg5 d4 Be7 h3 Qc3 h4 Nf3 d3 Qa5 a3 Nd4 h2 Bg2 h3 Bf1 Na6 b8B Nf6 g8Q Nc5 Qg7 Qb6 Nf5 Kc6 Qg8 Bg7 Be5 Bd7 Qh7 Raf8 Rg1 h1Q Nh4 h2 Qh5 Nh7 Bd4 Rf4 Bh3 Bf6 Kd2 e1N Rg2 e3+ Kc3 d2 Qe5 e2 Qe3 Nf3 Be5 e1N Bd6 Nfg5 Ng6 Bh5 Nf8 d1N+ Kd2 Nef3+ Ke2 Nh4+ Bg4 Bf7 Qg3 Ne3 Rg1 Neg2 Ne6 Qb3 Bc7 Qe3+ Kf1 Rb8 Bcd6 Rb3 Bb8 Rd3 Nc7 Rc3 Bd6 Qe6 Bf8 Qe3 Bg7 Qe6 Nd2 Qe3 Rb1 a1Q Nb3 Qb2 Nc1 Qb6 Na2 Qe6 Qe3 Qb3 Rb2 Qb6 Ke2 Qb3 Rd1 Qg1 Qe5 h1B Ra1 Qh2 Kf1 Qb5 Qe3 Qb6 Qg3 Qe3 Rb4 Qa6 Rb2 Qc8 Bf8 Qce8 Bh6 Q8e6 Bg7
r2qr1Qq/n3n3/Qk1n4/r4B2/2PrqPbp/RNBn2b1/Q1NK3R/6r1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 h5 a4 d5 c4 Kd7 f3 Kc6 a5 e5 g5 b5 a6 b3 g6 h3 a7 h2 g7 d3 Kd2 e3+ Kc3 e4 Ra3 b2 Be2 b4+ Kb3 d4 Qe1 d2 Kc2 d1N Nh3 d3+ Kb3 d2 Kc2 Ne7 g8Q Nc3 Qh7 d1R Ng1 Nb5 Ra1 Kb6 Bd3 e2 Ra2 e3 Bf5 Nbc6 Qg3 e1N+ Kb3 e2 Bh3 Bg4 Bg5 Rd4 Ra3 Nd3 Kc2 e1Q Qg8 Nd6 Qf2 Qe4 Ne2 b3+ Kd2 Bh6 Be3 Bf4 Nc1 Bg3 f4 h4 Qg2 Rh5 Bf2 Ra5 Be1 Qh7 Qe2 Qh8 Qee6 Qe8 Qc8 Qd8 Nc3 b1R N3a2 b2 Nb4 Ra1 Nb3 b1R Nc2 Rb8 a8Q Na7 Bg2 Ra2 Be4 Rba1 Bf5 Rc1 Rf1 h1Q Rf2 Qe4 Rh2 Raa1 Bf2 Rg1 Be1 Qd5 Ke3 Qc6 Bc3 Rae1+ Kd2 Qf3 Qe4 Ra8 Qe2 Qd5 Qf1 Re5 Qa1 Qe4 Qb1 Nec6 Qa1 Re8 Qa2 Ne7 Qa6+
1KbqbRnn/6r1/2NnB3/2bb1QNP/2P5/B1n4r/2pr1kbN/qQ2R3 b - - 0 1 illegal: No proof kernel
NqBQb2N/B3b1nb/n1Rbk2B/4bqPP/2K5/r2p2R1/1q2Q3/1r2q1n1 b - - 0 1 illegal: No proof kernel
R7/BnrN2rN/1b1B1r2/1p1KPr2/Q1n1r2R/bP1kqq2/Q3nQb1/6b1 b - - 0 1 illegal: No extended proof kernel
2B3nK/rrQ5/1qk2B1b/P1p3n1/b1nr2rN/2Q2n2/BP3rq1/2q2NRR b - - 0 1 illegal: No proof kernel
2BQ2r1/Q3N2r/qq2R3/p1PKB2n/3R2NP/3q2br/2q3Q1/1nrkqbb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 h4 Ke4 b4 f5 b5 a5 c3 g5 e3 g3 b6 d5+ Kb5 g4 b7 a3 c4 f3 c5 f2 Bc4 f1R Qc2+ d3 Ra2 f4 Qg2+ f3 Qf2 g2 Ne2 g1Q Qg2 d4 Ra1 g3 Bd2 a2 Bc3 d2 Bd5+ Kd3 e4 Kc2 Kc4 d1Q e5 d3 e6 f2 e7 d2 e8Q Nd7 b8Q Ndf6 Be6 Rh7 Nf4 Ba6+ Qbb5 Bd6 Nd5 Nh5 Bb4 Ngf6 Bf5+ Ne4 Bc3 Qb6 Qf3 g2 Rh2 Bg3 Qd7 Rg8 Qa7 Kc1 Nf6 Qc2 Qd3 d1Q Qd8 Nd2+ Kd5 Qe1 Bc8 Kd1 Ng4 Qe2 Na3+ Nb1 Nc4 Qed3+ Bd4 Qh1 Nce5 g1B+ Rg2 Re1 Ng6 f1Q Ne7 Re3 Qc6 Qe1 Qca8 Qh3 Re2 Qhf1 Qc6 Bb5 Qg6 Qff6 Qe4 Qa6 Qg2 Qfb6 Rd2+ Kc1 Re2 Qdg6 Qh1 Kd1 Bb7 Bd6 Ne5 Rh3 Ng4 Bg3 Re4 Bf1 Re6 Qgd3 Qh2 Qc1 Qb2 Na3 Qg2 Qcb1 Bc8 Qc1 Rb1 a1R Rb3 Qcc2 Rb4 Rc1 Ra4 Nb1 Rc4 Qdc3 Be5 Q3d3+ Rd4
3N3K/Rb1QB2Q/1R2B1qP/3rr2P/r3bk2/3nq1Np/1N1rrn2/1n2b2n b - - 0 1 illegal: Other
B3n3/r1b4n/bq1n1p2/2NP1n2/r1k1qb1b/B5nQ/2PNQq1R/R2K3N b - - 0 1 illegal: No possible last move
Nn2N1B1/1qQ1rbK1/1R1Pr1b1/b3n1Np/4q1P1/2B1rb2/k4b2/R2rQ2n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kh5 b5 g4 f5 d4 c5 a4 f3 e3 f4 a5 b3 a6 b4 a7 h3 Bd3 f2 Rh2 f1B Bc2 f3 Qd3 c3 Qd2 Kc4 d5 b2 e4 b3 e5 f2 e6 Qe8+ Bg6 c2 e7 Be2 Qa5 f1R Qb6 Rd1 Qb7 Nh6 Rg2 h2 Qd7 h1N Nc3 b1B Qd6 b2 Nf3 Kb3 Bf7 c4 Kg5 Be6 Ne5 Bf3 Bf4 c1R Kf6 Bg6 Nb1 c3 Rf2 c2 Nc3 b1Q Bg8 Nf7 Nc4 h5 Nb6 Ne5 Bf7 Rh7 Bg8 Bef7 Qc7 Rd3 Nc4 Rcd1 Nd6 c1B Nce4 Re3 Ng5 Bd2 Bh2 Qa4 e8Q Qae4 Qe6 Qb2 Ne8 Bc5 Rf1 Rh6 Kg7 Ba5 Re1 Qbb1 d6+ Kb2 Bg3 Qb7 Qee7 Q1e4 Rb1+ Ka2 Rb6 Red3 Bf4 Bf2 Bd2 Re3 Rg1 Bf5 Rf1 Re6 Bc3 B5g6 Re1 Na6 Rf1 Rd8 a8N Nb8 Qf6 Rc8 Qf4 Rd8 Qg3 Rd7 Re1 Rde7 Qg1 Rd4 Rd1 Rdd3 Qe1 Rd2 Rc1 Rd1 Ra1+
n3Bqq1/1R2bq1b/1bnP2pb/2BqRR1r/Q6k/2P2r1b/N6K/N2n2Q1 b - - 0 1 illegal: No proof kernel
rb1q4/3R1B2/2pq1Q2/bn2qN2/Rr3nP1/nN2n2k/N1b3PB/2b1Kn1Q b - - 0 1 illegal: Other
K1kb3r/N1q3R1/P1B5/p2bb3/1B2bP2/q1q1QnQq/2R2q2/r1NnB2n b - - 0 1 illegal: No proof kernel
1R6/7P/1Rb4N/qq1bBNK1/q3BrQ1/qrnb2rp/2P3R1/k1b1b1Qn b - - 0 1 illegal: No proof kernel
bq2q2k/NQ1n2bp/n1BQNn2/r4R2/1RPr1Rqb/B6q/2n2Pn1/1K6 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 c4 Kg7 Kc2 e5 g4 b5 a4 d5 g5 d3+ Kb2 e3 g6 d2 a5 d4 a6 e2 a7 e1B Qe2 d1Q Ka2 d3 Na3 d2 Qe3 h3 Nb1 e4 Qd3 h2 Qb3 e3 Qd3 e2 Bb2+ Nf6 Be5 b3+ Kb2 b4 Bh3 Nd7 Bd4 Qe8 Bf5 Be7 Qe4 Bb7 Qc6 Rg8 Qg2 Kh8 Be5 Rd8 Bb8 Ba8 Nh3 Rg7 Rf1 h1Q Nf4 Qh3 Ra6 Rf7 Ka1 b2+ Ka2 Rf8 Nc3 b1N Qc6 b3+ Kb2 Na3 Nb5 Nc2 Ra5 Nb4 Be4 Na6 Qd6 Rg8 Bc6 Rg7 Ka3 b2+ Ka2 b1N Ne6 Na3 Rg1 Nc2 Rg4 Qc1 Ra4 d1Q Rf4 Bc3 Rb4 e1N Bc7 Ng2 Ba5 Bb7 a8Q Qdg4 Na7 Qch1 Rf5 Q1h2 Kb1 Ba1 Qc8 Ba8 Qb7 Bd4 Bb6 Ba1 Bc5 Qe5 Qd4 Qb8 Qd6 Nh5 Rf4 Bc3 Qd3 Ne5 Ra4 Bh4 Ba3 Rd5 Qd2 Ra5 Rb4 Rd7 Qd4 Rdd5 Qc5 Nd7 Qe7 Kg8 Qd6 Bh8 g7 Rd4 Bd5 Nhf6 Bf3 Kf7 Bc6 Kg6 g8R+ Kf7 Rg6 Bg7 Rg5 Kg8 Rd5 Kh8 Rdf5
B3q3/k1Br1QPN/r3Rr2/1n3pQ1/6r1/Rq1b2b1/nqP3r1/1bb1Q1NK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 f5 e4 h5 g4 a5 Kg2 d5 b4 Kd7 e5 Kc6 g5 Kb7 b5 h3+ Kh2 a3 g6 d3 e6 f3 b6 f2 g7 h4 e7 d4 e8Q d2 Qee2 a2 Qee1 a4 Be2 f1B Bf3+ Nc6 Nc3 a3 Qe8 d3 Nd5 Be6 Ne7 Nh6 Bb2 Nf7 Qb1 d1Q Ng6 d2 Bd4 Nd6 Be2 Nb5 Bf3 Bd6+ Ne5 Rh6 Be4 Rf6 Bb2 Qf3 Qg8 d1R Bd5 Ra6 Qf8 Qe8 Bc4 Nb4 Qg8 Ka8 b7+ Ka7 Qh8 Bc7 Qc1 Rd7 Rb1 a1B Qf8 a2 Bc3 Bb2 Qf7 a1Q Bd5 Qa3 Qd1 Bc1 Ra1 Qb2 Ra3 Qd3 Bf3 Ba2 Ne2 Bb1 Bd2 Na2 Ba5 Bd6 Bc7 Qc4 Kg1 Qcb3 Ng6 Be5 Nf8 h2+ Kf2 h3 Nh7 Bd6 Qd2 Be5 Qg5 Bd6 Rg1 h1R Rg4 h2 Re4 Rg1 Re6 h1R Bc6 Rg3 Bg2 Rh2 Kg1 Rf3 Bh1 Rf4 Bd5 Rg2+ Kh1 Rfg4 Ng1 Nbc3 Bc6 Bd3 Be4 Bg3 Bc6 Raa4 b8Q+ Ka6 Qb4 Ka7 Bd5 Ra6 Ba8 Nb5 Qe1
1B1q1b1r/1q1r2P1/N1r1RPqQ/Nq2r3/1Qb2kq1/6R1/p1Bn2Bb/K3n3 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 g4 d5 b4 a5 Kb2 h5 g5 e3 g6 a3+ Ka2 d3 c5 d4 f3 d2 c6 d3 g7 e2 c7 e1Q b5 a4 b6 h3 b7 h2 Qe2+ Kf4 Qf2 e5 Qd4+ e4 Qb6 h4 Qf2 e3 Qg2 d1R Qe2 h3 Qc2 d2 Qc5 e2 Qe7 Nd7 b8Q Ngf6 Qb2 Nc5 Qc2 Ba6 c8B Nfe4 Qd3 Bc4+ Qb3 Ra6 Bg2 Rc6 Bf5 Nd3 Qe6 Qg3 Nc3 e1R Nb5 Qg6 Nc7 Re3 Qf6 Ne1 Na6 Re2 Kb1 a2+ Kb2 Re3 Rb1 Re2 Ka1 Re3 Qb5 Re2 Rb3 Re3 Kb2 a1B+ Ka2 a3 Qb4 Be5 Qfd6 Nc5 Bc2 Ne4 Qe6 Bb8 Ka1 a2 Rd3 Nc3 Rd6 Nb1 Bb2 Re5 Ne2+ Ke3 Nd4 Kf4 Rg1 h1Q Nb3 h2 Na5 Bc7 Bh3 Bb8 Rg3 Qf1 Bd4 h1Q Ba7 Qfd3 Bf1 Qd5 Qh3 Qb5 Re6 Bbd6 Bb8 Qg2 Rg5 Qg4 Qh7 Qd7 Qh4 Qdb7 Qh6 Kg3 Rf5 Bc5 f4 Bg1 Rh5 Bh2 f5 Kf3 Qh7 Kf4 f6 Rc1 Bc7 d1Q Bg2 Qd8 Rh3 Rd1 Rg3 Rd7 Bb8 Nd2 Qh6+
1B1N1K2/r3BbpB/3rr3/6br/1Q6/2P1n1qP/1bqbrRRq/1Qk1nN2 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 a4 Kg6 f4 Kf5 h3 b5 c3 d5 a5 e5 a6 e3+ Kd3 e2 a7 e1Q Ne2 g3 Ra4 g2 Ra6 g1B Rh6 e4+ Kc2 e3 Kd3 b3 Rg6 b2 Qa4 b4 Bd2 b3 Rg4 Ne7 Qb4 Qd6 Qb5 Qg3 Be1 Rh5 Qc6 Na6 Rh4 Be6 Rh2 Bf7 Nd2 b1R Qc7 b2 Nf3 Nc5+ Kc2 Ke4 Bf2 Re1 Qc6 b1R Qb6 Nd3 Qb8 Rb6 Ne5 Nf5 Rg2 Be7 Qf8 Bg5 Nc6 Qe5 Nd8 Re6 Kb3 Kf3 Nc1 e2 Qb4 Ne3 f5 Qh2 Ka4 Qeg3 Kb5 Ne5 Kc5 d3 f6 d2 Qa4 d1R Qb4 d4 Nb3 d3 Rd4 d2 Rd3 Rb8 a8Q+ Rb7 Qa2 Ra7 Rd6 Nd3+ Kc6 Ra6+ Kd7 Ra1 Rc6 d1Q Rc8 Red6+ Ke7 Qc2 Kf8 Re6 Rc5 Ra7 Re5 Rad1 Rd5 Rd2 Re5 Red1 Ra5 e1B Rf5+ Qf4 Bg3 Re2 Qc5 Bd2 Qb4 Bg8 f7 Ne1 Rf6 Bc1 Rf5 Bb2 Rf6 Rd4 Rf5 Ke4 Nd2+ Kd3 Rf6 Qg4 Bb8 Rdd6 Rff2 Qgf4 Rg4 Qhg3 Bg2 Qh2 Nf1 Qfg3 Bb7 Qd2 Bd5 Kc2 Be4+ Kc1 Bh7 Qd3 Rg2 Qc2 Rf4 Nf5 Rf3 B1e3 Rf4 Bd2 Rff2 Be7+ Ke8 Ne3 f8B Bg5+ Be7 Bf7+ Kf8 Rg6 Qe4 Rgh6 Qb4 Rhe6 Qb1+
2Bq1Qr1/q2n1PNR/2K5/2n1qP2/rR4Nq/3BB1kQ/2bbn2p/1b2q2n b - - 0 1 illegal: Other
K1n2q2/1RrBPQN1/5nr1/2nNB1r1/B3p1b1/bb6/2P2Q1b/1qrkb2R b - - 0 1 illegal: No proof kernel
b1Q1K3/1q2p3/b3r3/3b1rPr/BkqB1nb1/N2R1RPQ/3N2nn/Bn4b1 b - - 0 1 illegal: Other
1Q1r2q1/2B1pn1n/1P3Pqq/QRrBbr2/3NB3/q4n2/1n2RKn1/2kN3b b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 g4 Ke6 b4 Kd5 b5 a5 f5 h5 g5 e3 c4+ Ke4 g6 d5 g7 d3 b6 d2+ Ke2 d4 c5 h3 c6 h4 c7 a3 Nf3 a4 Qb3 d1N Ne5 a2 Qb5 a3 Bb2 d3+ Ke1 d2+ Ke2 h2 Nd3 h3 Ne1 Rh5 Bd4 Nf6 g8Q Nb2 Qg5 d1N Qe8 Nbd7 Rg1 h1Q Qg7 h2 Qgg6 Bg7 Nf3 Nh7 Bh3 Bb7 c8B Be5 f6+ Rf5 Qh5 Qg2+ Ke1 Kd3 Ng5 Kc2 Ne4 h1Q Nbd2 e2 Nb1 Ne3 Nc5 Kc1 Ne6 Qg6 Bg2 Bf3 Qg5 Qhh6 Kf2+ e1N Bb7 Rb8 Qh8 Qdg8 Bd5 Rd8 Qh5 Be4+ Bf3 Ng2 Nc3+ Kc2 Rb1 a1R Bc5 a2 Bd6 Kd2 Bc7 Kc2 Rd1 Rc1 Rh1 a1Q Rh2 Qa6 Rd3 Qa3 Nd1 Kb1 Rb3 Rc5 Rb5 Kc2 Nd4+ Kc1 Bf7 Bc6 Bd5 Bb7 Kg1 Ba8 Bfe4 Nf3+ Kf2 Bg3+ Ke2 Nde5 Kf1 Nf7 Qg5+ Nf4 Re2 Bh2 Qh5 Ng2 Kf2 Bd6 Qg7 Be5 Qf8 Rd7 Qb8 Rd8 Qg5+ Nf4 Qg3 Nbd3+ Kf1 Qa2 Bc6 Nb2 Bc2 Ne1 Qc3 Qa3 Kf2 Bb7 Qa5 Ba8 Bd7 Bh1 Be4 Nf3 Be6 Ng2 B6d5
2R1qb1r/1K1P1nB1/QpP1nN1r/Q5b1/1qn1nQ2/2N2rk1/1nb2R2/3B1b2 b - - 0 1 illegal: No proof kernel
1b1qnB2/qn1Prn1P/rk4Qb/3pN1b1/5RbN/N2B1nR1/3Qr3/1K4b1 b - - 0 1 illegal: No proof kernel
n1bKn1qb/1bNP1p1r/5rb1/4BR2/6Q1/1knqP2q/4RBb1/2Q2nNB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Ke6 d4 Kd5 a4 c5 h5 g5 h6 b5 h7 c3 e3 b3 a5 b4 a6 c4 a7 g3+ Kf3 g2 Qc2 b2 Bd3 b3 Rh5 Bg7 Rh4 g4+ Kf2 g3+ Kf3 Nf6 Ra4 Na6 Rh2 Nc7 Ra6 Nfe8 Qd1 c2 Na3 b1B Nb5 c3 Bg6 Kc4 Ke4 b2 d5 f3 d6 f2 Qg4 f1B Na3+ Kb3 Bd2 c1N+ Kf4 c2 Rh4 Na2 Rh3 c1Q Be1 Nc3 Qe2 Be4 Qg4 b1B Ra5 Beb7 Nb5 Qd1 d7 Qd3 Rh2 Qh4 Bf2 Qh3 Kg5 Bc2 Nf3 g1N Be4 Nge2 Ng1 g2 Bc6 Rb8 a8Q Ng3 Qa6 Na8 Nc7 Bb1 Rf5 Bc2 Qa1 Bb1 Ne2 g1Q Bh1 Bc2 Qc1 Bfg2 Qe4 Nf1 Qg4 Rf8 h8B Bd4 Bg7 Rh8 Be5 Rh7 Bf4 Bh8 Be5 Ng7 Kf6 Ne8+ Ke7 Bgc6 Qf3 Qg8 Qg3 Bg2 Ng1 Bbe4 Qg4 Rb6 Qg3 Beb7 Kd8 Rf6 Qf3 Bd1 Qf4 Bh5 Qg4 Bg6 Bh4 Bgf3 Re2 Bg2 Bf2
rB1Q2Qb/qrRPp1N1/1k6/B2q3b/qnRb1n1q/2r5/1KB2rP1/N3q3 b - - 0 1 illegal: No possible last move
2bnNR2/1nPn2Rq/5P2/qBbq2N1/n2r1k2/3Qpr1q/1n2bNQ1/K1B5 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Kf6 c4 Kf5 Kc2 d5 Kb2 h5 a4 b5 c5 e5 a5 h3 c6 e3 a6 h4 g3 b3 a7 h2 Qd2 h3 Na3 d3 Nc2 e2 Ra6 e1N Kb1 e4 Ba3 d4 Bb2 e3 Nf3 b4 Bg2 Nf6 Ra3 Rh4 Ra6 Nfd7 Ba1 b2 Qd1 d2 Ng5 d3 Nf3 Qa5 c7 Nc6 Qc1 d1N Qd2 Nd8 Rg1 h1Q Ng5 h2 Bf1 Bc5 Rf6+ Kg4 f5 Qd5 Rf7 h1Q Rf8 Qh3 Rg2 Rb8 a8Q Rb5 Qc3 d2 Qd3 Rb6 Rg1 Rf6 Qb7 Qb3 Qg2 Qd5 Na3 Rf7 Nb5 Rf6 Nc3 Rf7 Qb5 Nd3 Nce4 Nc3+ Kc2 b1N Bb2 Nd1 Bc1 N1b2 Qc4 Nc3 Nf2+ Kh5 Qd4 Nca4 Kb1 d1B Ka1 b3 g4+ Kh6 Qc3 Be2 Qd4 Bb4 Qc3 N3c5 Qd3 Ncb7 Nh7 Ba3 g5+ Kh5 g6 Rd4 g7 Bc5 g8N Kh4 Qf3 Rf6 Rg7 Rf7 Ng5 Rf6 Qfe4+ Kg3 Qg2+ Kf4 Nf3 Rg6 Nf6 Rg3 Ng5 Rf3 Ne8 Nd1 Qb1 Ba6 Bc4 b2+ Ka2 Bb5 f6 Ba6 Bb3 Be2 Qh7 Rb4 Bc4 b1Q+ Ka3 Qbf5 Ka2 Ndb2 Ka1 Qc2 Bb5 Rd4 Re7 Qg6 Rg7 Qgh6 Qb1 Qh7 Qd3
Brn1N3/NPKb2Qq/1r3rRp/2R5/1bkb3P/qrBrn3/2q2Q1B/q7 b - - 0 1 legal: proof: e4 f5 g4 fxg4 d4 b5 a4 bxa4 d5 c6 Ra2 cxd5 Ra3 dxe4 Ra1 e3 Ke2 Kf7 Kd3 Ke6 Kc4 d5+ Kb5 g5 c4 a5 h4 a3 b4 a4 f4 h6 c5 a2 c6 a3 c7 e2 Kb6 e1Q b5 d4 f5+ Kd5 f6 e5 f7 e4 Bd3 e3 Be4+ Kc4 Nc3 e2 Qd2 g3 Rb1 a1Q Bf3 a2 Qf4 g4 Bc6 g2 Bb2 g3 Qe4 Nf6 Qe5 d3 Qh5 d2 Qf5 d1R Qg6 Ra3 Be8 Nc6 Nd5 Ng4 Bd4 Qd2 Nf6 e1R Qg7 Rb3 Rc1+ Qc2 Bc3 Bb4 f8B Rf1 Nf3 g1B+ Nd4 g2 Bd6 Ne7 Bh2 Ne3 Nc6 Bd7 Na7 Rd3 Bg6 Qa8 Ne8 Qab1 Be4 a1Q Bc6 Rff8 c8Q Rf6 Kc7 Rhf8 Qb8 Nc8 b6 Bf2 Bf3 g1R Qb7 Rgg6 Rhg1 Rh8 Bg2 Qa3 Qf3 Qba1 Bh1 Qe4 Qg3 Qe7 Ba8 Qf7 b7 Qg8 Rg2 Qh7 Qf3 Rb6 Rg3 Rgf6 Qg2 Nf5 Qg1 Bd4 Rg6 Ne3 Qf2 Kd5 Kb8 Ne7 Bd2 Qca2 Kc7 Rg8 Rc4 Qc2 Nd6 Rb8 Bc3 Nc8 Ne8 Rb5 Rc6 Rb6 Rd6+ Kc5 Rd5+ Kc4 Rc5+
Q2B1q2/1P1P4/rbn1Qkpr/2b1n3/b6q/2R4B/1RrN2nK/Rb1r1bN1 b - - 0 1 illegal: No possible last move
r1B1r3/kpQ1b2n/R5bN/bK1nq2q/1R5B/5QbP/b2PrN2/3Bq1q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Kd7 Ke2 Kc6 a4 Kb6 e5 c5 h3 g5 a5+ Ka7 a6 f5 e6 f3+ Ke3 b3 e7 g3 e8B g4 Ra4 g2 Ra5 b2 Rb5 g3 Rb4 f2 Bc6 f4+ Ke2 c3 Rb6 f3+ Ke3 c4 Rb3 c2 Ba4 c3 Ra3 Nc6 Bab5 Qd5 Ba4 Qe5+ Kd3 Be6 Rb3 Nf6 Ne2 g1B Qe1 g2 Bb5 Bh2 Qd1 g1Q Rb4 Be7 Bg2 f1R Nd4 f2 Bf3 Nh7 Nf5 Rhe8 Nh6 Ba2 Bg4 Bg3 Ba4 Re1 Bc8 Qh5 Qf3 Re2 Bb3 f1Q Kc4 Qe3 Rg1 Qee5 Rg2 Bc5 Kb5 Qe1 Rg1 Ne7 Rg2 Bgf2 Rg6 Nd5 Ba4 Bb6 Rf6 Kb8 Rd6 Ba5 a7+ Kc7 Ra6 Bg3 Na3 b1B Bb2 c1Q Bd1 Bd3+ Nc4 Bg6 Ne3 c2 Neg4 Qb1 Nf2 c1B Bd4 Ba3 Be3 Qba1 Bg5 Qc1 Bh4 Qg1 Rf4 Be7 Rb4 Qca1 Bb3 Qaf1 Bd1 Qe1 Bf5 Rab8 a8Q Rbd8 Qa7 Ra8 Qb6+ Kb8 Qc6 Bf8 Bc8 Be7 Rb6 Ka7 Qc7 Bf6 Rc6 Be7 Ra6#
1qR1K3/1p3n2/1r2B1bb/knnqn3/4r1NP/bQ1R1n2/6bP/1rB1QBN1 b - - 0 1 illegal: Other
rb1nB1nK/3QQ3/1nr1pB1R/1r1P2nk/N1Q4n/1Rn2bq1/4P3/1n4rN b - - 0 1 legal: proof: g4 d5 h4 a5 c4 dxc4 b4 axb4 g5 f6 Qc2 fxg5 Qb3 gxh4 Qd1 h3 a4 Kf7 d4 Kg6 Kd2 b5 Ke3 c5 Kf4 h5 Ke5 c3 f4 h2 d5 h4 f5+ Kh5 f6 g5 a5 g4 f7 c4 a6 h3 a7 b3 Bh6 b4 Qd4 c2 Ra6 c1N Rb6 c3 Qf2 b2 Rb5 c2 Qe3 g3 Qa3 b3 Qa5 g2 Qc7 Qd6+ Kd4 Nd7 Bd2 Nb6 Qd7 Na2 Bc1 Qg3 Bd2 c1R Be1 Rc6 Nf3 g1R Ne5 Nb4 Nc3 b1N Nd3 b2 Na4 Nc3 Nf2 b1N Bg2 Bh6 f8Q Bf4 Be4 Bb8 Bd2 Rhh6 Bg5 Rhd6 Bf6 Rc5 Qdd8 Bg4 Qd7 e6 Qfe7 Rdc6 Bc2 Bf3 Bd1 Nba2 Rb3 Nb4 Bc2 Rb5 Be4 Re1 Rg1 h1N Rg2 h2 Bg6+ Kh6 Be8 Rd1+ Nd3 Nf2 Rg1 Nh3 Rg2 Rh1 Nf2 Rg1 Nh1 Qg7 Rg6+ Kh5 Qc5 Ng5 Qc4 Rd6 Ke5 Nc6+ Kf4 Nd8 Ke5 Nge4 Nf2 h1N Qe7 Nhg3 Nh1 Bc7 Qd7 Nf5 Qe7 Rc8 a8Q Bb8 Qac6 Ng5 Qcd7 Nh4 Qcc7 Rb4 Qc4 Nh7 Rg4+ Qg6 Bg7 Rb5 Rg2 Rc7 Bh8 Ra7 Rg5+ Kh6 Rg3 Qg4 Rg2 Qh3 Rg6+ Kh5 Bg7 Ng5 Bh8 Nh6 Kf6 Qg3 Kg7 Ra8 Qc5 Rc6 Qc4 Nge4 Kh7 Ng8 Bf6 Ng5+ Kg7 Be4 Kh8 Bf3 Rh6+
k3q2b/3r3Q/1PB1bB2/1rR1R3/2n1NRr1/nrpbbQ2/K2bNP2/b5b1 b - - 0 1 illegal: No possible last move
q3n3/NR1br3/Q2Q1nP1/B3bB2/2n1nrbP/nb3p2/k2n1R2/3bKB1N b - - 0 1 illegal: No proof kernel
r6n/1bnbP1bb/3Q4/qn3QnK/kBN2rRp/5N1b/4N2P/n1B2bR1 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 e5 g6 e4 Bd3 exd3 Nc3 fxg6 Nb1 g5 Qe2 g4 Qd2 Be7 Qd1 Bf8 a4 b5 f4 g5 Kf2 h5 Kg3 d5 c4 Kd7 f5 Kc6 e4 h4+ Kg2 b3 a5 b4 f6 d2 f7 g3 Kf3 b2 a6 d3 e5 g2 a7 g4+ Kf4 b3 e6 d4 c5 Kb5 c6 g3 Kg4 Bd7 c7 Na6 c8N Bg7 f8B Qa5 Ne2 g1N Qe1 d1N Ba3 d2 Bd6 d3 Bb8 g2 Na3+ Ka4 Qf1 b1B Bd6 b2 Bc5 Ne7 Qe1 Ng6 Bb4 Nc7 Nf4 Nc3 Qe5 d1B+ Qe2 d2 Nd5 Rf8 Nd6 Bf5+ Kg5 b1B e7 Nh8 Qd3 N3b5 Qf3 Nh3+ Kh5 g1N Nf4 Be2 Ndc4 d1B Qg4 Ng5 Nd2 N1f3 Rg1 Bf1 Ne2 Nfd4 Nf3 Nc2 Qe4 Bfe6 Rg4 Rf4 Qc6 Bd5 Qd6 Bb7 Nc4+ Nca3 Qe5 Bh7 Qd6 Bdc2 Rb1 Bcf5 Ra1 Rg8 Rb1 Nc2 a8Q Na1 Qf8 Bfe6 Qf7 Ra8 Qf5 Bed5 Nfe5 Bdg2 Nf3 Bh3 Bb2 Bfg2 Rg1 Bf1 Bc1
n1b1qB2/nr2r3/nq6/2kQ1RN1/B1P2bNq/1R1Kpb1Q/r1P5/1b2rB2 b - - 0 1 illegal: Other
1NKn3b/3r1n2/nqkq2Qb/3RBqB1/n1p2NbP/5Qr1/3R3P/rB5q b - - 0 1 illegal: Other
q1n1Rbb1/k1N5/3Qq3/BB1n2K1/RPP2n1p/2rQnr2/q1Rbr3/4N2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 b4 f5 e4 d5 g4 Kd7 c4 Kc6 e5 Kb6 e6 a5 e7 f3 e8R f4 g5 h3 g6 f2 g7 h2 Bd3 f1R Ne2 h4 Re7 a3 Be4 a2 Bf3 d3 Re6+ Nc6 Rh6 a4 Bg2 f3 Ke3 d2 Kf4 f2 Bf3 d4 Rh7 a3 Qa4 d1N Nd2 d3 Qb5+ Ka7 Bb2 Nf6 g8Q+ Ne7 Rg7 Nd5+ Kg5 Be6 Bh5 Nf4 Qc6 Nc3 Bg4 Ncd5 Re1 a1Q Bf5 a2 Ne4 d2 Nc1 d1N Qd6 N1e3 Qh7 Bg8 Bd7 Nc8+ Nf6 Qe8 Qg6 Qe6 Qd3 Qb1 Re2 a1B Rc2 Qa2 Be5 Bc3 Re7 Bd2 Ne8 Rh6 Rg1 h1B Nc7 Re1 Re8 f1Q Bf6 Qf3 Bb5 Re2 Bd8 Rf6 Rd1 Kb7 Rg1 Ra3 Rf1 Rc3 Rf2 Qa7 Ra2 Qa5 Ra4 Ka7 Bd7 Re1 Ra3 Nh5 Qe2 Ndb6+ Bb5 Qa8 Nd5 Rf3 Nd3 Bc1 Qd1 Qa6 Rc2 Re2 Ne1 Nf4 Qd3 Bd2 Ra1 Nd7 Bc7 Nf6 Ra3 Qa4 Ba5 Qb3 Nc7 N6d5 Raa2 Qb1 Ra3 Qa2 Ra4
3K2b1/1N2rrQN/5BBn/npn1r2P/1q2R1k1/b1q5/B2b1P1Q/1Rqn2b1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 h4 Ke6 c4 Kf5 a4 g5 a5 d5 h5 b5 a6 e5 a7 e3 Kd3 e4+ Kc2 e2 Kb3 e1B c5 g3 c6 g2 c7 g4 Rh4 e3 Qe2 d3 Nd2 d4 Qd1 e2 Ne4 d2 Bb2 d3 Nf6 g3 Qb1 d1R Ra4 Be6+ Nd5 Qc8 Ra5 Nh6 Ra4 Bg8 Qa1 d2 Re4 Rh7 Nf3 g1Q Bf6 g2 Ng5 Rf7 Nh7 Nc6 Nf4 Kg4 Qc3 Qh1 Ra1 g1B Rb1 Rb8 a8B Rb7 Qa1 Rc1 Qb2 d1N Bg2 Bd2 Ne6+ Bf4 Qc3 e1N Nc5 Nd3 Qe5 Ra7 Nb7 Rc5 Qe7 Re5 Qd6 Qd7 c8Q Qh4 Qcb8 Qc7 Qe7 Qa5 Qec7 Be7 Qf8 Qg5 Qg7 Nc5+ Kc2 Qa3 Bf1 Na5 Bc4 Bd6 Ba2 Rfe7 Re3 b3+ Kd2 Na6 Kd3 b2+ Kd4 Nc5 Re4 Qf3 Rc1 b1Q Qb8 Qbb3 Rb1 Nd7 Qc7 Ba3 Qb8 Nc5 Qd6 R5e6 Qe5 Qb4+ Kd5 Qg6 Qc7 Re5+ Kd6 Qg5 Qb8 Rf7 Qc7 Qfc3 Qb8 Rf8 Kc7 Rf7+ Kd8 Rfe7 Nd6 Rac7 Bc6 Rf7 Be8 Rce7 Qc7 Kf3 Nb7 Bd2 Bd7 Qge3 Bf5 Qc1 Bg6 Qec3 Re2 Kg4 Qb8 R5e6 Qh2 Re5 Re4+
6Bk/6BN/1q1QPrnK/rQqqb3/1P2Q3/1bb2n2/p4rRn/2nN1Rb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 b4 Kf7 h4 a5 c4 d5 e4 g5 c5 Kg7 e5 f3 c6 g3 h5 d3 Ke3 d4+ Kd2 g2 c7 a3 Qb3 a4 Bb2 f2 Rh4 g4 Be2 f1N+ Kd1 a2 Qc4 a3 Rh1 g3 Qb5 f4 Bg4 d2 Ke2 d1N Kf3 d3 Ne2 g1B Rh2 g2 Qd5 d2 Qd7+ Ne7 Qf5 Ng6 Qg5 Rh6 Bc1 Kh8 Nec3 Bd6 Ne4 Ra5 Nbc3 Nf2 Nf6 Be6 c8Q Nd3 Qc6 Qb6 Qe4 Nc6 Nd1 Bb3 Be6 Nd4+ Kg4 f3 Nh7 f2 Bg8 Nf3 e6 Be5 Qgf4 Bc3 Qd6 Qc5 Rb1 a1B Bb2 Be5 Bd4 Qb6 Bc5 a2 Rc1 Bac3 Rb1 Nd4 Kg5 Nc1 Ra1 Nf4 Rb1 Rf6 h6 Ng6 Ra1 Nf3+ Kh5 Ne3 Rb1 f1R Ra1 Bf2 Rb1 g1Q Rg2 Ng4 Nb2 d1Q Qdc6 Bb8 Ng5 Qd4 h7 Kg7 Qb5 Ne2 Be7 Qd5 Bf8+ Kh8 Rd1 Nc1 Re1 Bh2 Nd1 Bfd4 Qc2 Qe3 Qe4 Rf2 Rf1 Bg1 Be7 Kg7 Bc5 Qdd6 h8Q+ Kf8 Qh7 Qd2 Qc7 Be5 Qcc6 Kg7 Nh7 Kh8 Qd7 Qdc6 Bf8 Ngh2 Qd6 Qdd5 Kh6 Qcc5 Bg7+
6bn/3N2QB/1bP5/kNnr3r/Pq3Rq1/1R3pn1/K1Q1qBrQ/1r1b1b2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 c4 f5 Kc2 h5 Kb2 d5 a4 Kd7 e4 Kc6 g4 Kb6 c5+ Ka5 c6 h3 g5 f3 e5 b3 g6 h2 g7 h4 e6 f4 e7 h3 e8Q f2 Qf7 b4 Qdh5 f3 Bg2 f1B Qe7 d3 Bd2 Qd7 Qee8 Bc5 Ra2 d4 Qh7 Qg4 Qe3 Na6 Nc3 Ne7 g8Q Ng6 Qa7 Rh5 Qd5 Nh8 Qh7 Be6 Ka1 b2+ Kb1 Bg8 Qdf5 Rd8 Qe1 Rd5 Ra3 Bb6 Ka2 b1R Qe2 Nc5 Be3 d2 Ne4 d1B Nf6 d3 Qg7 d2 Qc2 Rhg5 Rd3 Rg6 Bf2 b3+ Ka3 b2 Ka2 Rgg5 Nd7 Rh5 Qee5 Rg5 Ne2 Rh5 Rg1 h1N Rc3 h2 Nd4 Ng3 Rb3 h1R Nb5 R1h2 Bh3 Rg2 Qd6 Bde2 Rh1 d1Q Rh2 Qe1 Qdh6 Bd1 Qd6 Qg5 Bf5 Qe2 Rh4 Qg6 Rf4 Qg4 Ka3 Rc1 Bh7 b1Q Qa2 Qbe4 Qc2 Qb4+ Ka2 Rb1 Qdh6 Rhg5 Qh3 Rh5 Qh2
R1Qq1n2/1rnqR2n/Pbkqq3/7r/2NbBPR1/2B5/1b1pKQ1N/1b1r4 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 f4 h5 a4 e5 g4 b5 c4 d5 g5 Kd7 a5 b3 c5 d3 a6 d4 g6 h3 g7 b2 Qa4 e3 Qa5 e4 Ra2 h2 Nd2 b1Q Kd1 h4 Bh3+ Kc6 Rc2 e2+ Ke1 b4 Ndf3 d2+ Kf2 d1Q Bf5 e1B+ Kf1 h3 Qa1 b3 Re2 d3 Be3 b2 Rd2 Bf2+ Ne1 Nf6 g8Q Ra7 Bg6 Rh5 Ne2 Bg7 Ng3 Bf5 Ne2 Nh7 Ng3 Qa2 Qe8+ Nd7 Qc1 b1N Qh8 Rb7 Qc4 Ndf8 Qc1 Na3 Bd4 e3 Ne4 Qe6 Qb2 Nb5 Re2 Nc7 Rg1 h1Q Nd2 h2 Nc4 Qhd5 Rg4 Q5d7 Bc3 Bd4 Qc2 Qd2 Nf3 Bg1 Qg8 h1R Nh2 Qdd6 Re1 Qd1 Qf2 e2+ Kg2 Qa4 Kf3 d2 Qh8 Bb1 Be4+ Qdd5 Rc1 e1B Ke2 Qed6 Qg8 Bg7 Qe6 Qb3 Qc8 Bh8 Qd4 Bef2 Re1 Qb6 Qe3 Bg7 Qf3 Bfd4 Qf2 Q6d7 Bf5 Q5e6+ Be4+ Kb5 c6 Qc5 Ne5 Qcd6 Nc4 Bb6 Qh4 B1d4 Qf2 Nd5 c7 Kc6 Reg1 Bge5 Rg7 Bf6 R1g4 Rf1 Re7 Rd1 Qa8 Kc5 c8R+ Nc7 Qa7 Be5 Ra8 Bh8 Qb8 Be5 Bc2 Kb5 Qc8 Kc6 Bb4 Bb2 Bc3 Bed4+ Be4+
1K1nR2k/N2qbbRP/b1Q3r1/Q1P3n1/2q1Q1rq/2q5/1prrN1Bn/B7 b - - 0 1 illegal: No possible last move
5b1b/N4P1r/2Pnn1qp/4Qrq1/RQRnn3/2r2k2/1Q1r2bK/1qBB2N1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 f4 Kf6 Kf2 b5 Kg2 d5 c4 e5 a4 b3 c5 h3+ Kg3 h6 g5+ Kf5 c6 h2 a5 d3 g6 d2 g7 b2 a6 e3 a7 Ke4 f5 b4 f6 d4 f7 d3 Qa4 d1R Bd2 e2 Bc1 e1B+ Kg2 d2 Na3 b1Q Bb5 Ne7 g8Q Rh7 Ra2 Nf5 Qa5 b3 Be2 b2 Qg6 Qg5+ Bg4 Na6 Nh3 Nc5 Qc7 Ne6 Rf1 h1N Nb5 Nf2 Qf6 Nd6 Qa5 Qc2 Nc7 b1Q Bb2 Rc1 Qa3 d1R Bc3 Rd2 Kh2 Ba6 Rg1 Bf1 Qb2 Bg2 Nf4 Rb8 a8Q Rb5 Qa5 Rbd5 Bh3 Kf3 Qab4 e4 Ne2+ Rf5 Qe5 e3 Nb5 Nfe4 Ra4 Qd3 Bd4 Rc3 Na7 Bf2 Rc1 Qdc2 Ng3 e2 Be3 e1N Ne2 Qd3 Bf4 Nc2 Be3 Ncd4 Rc2 Ra3 Rc4 Rc3 Bf4 Bh4 Be3 Qg7 Bf4 Bf6 Be3 Qg5 Bf4 Rd1 Bc1 Rd2 Bg4+ Kf2 Ng3 Bh8 Bd1 Ke3 Ne2 Kf3 Qbc5 Qg6 Qa5 Qe3 Qab4 Qeg5 Ng1+
3n1N1b/qr1np1PB/1kPB2Qr/1Bb3R1/2Q5/R1Knq3/qn3r1b/1b3N2 b - - 0 1 illegal: No proof kernel
rn5n/3Pn1NP/bbr3k1/r1qR1q1N/3BR1p1/4qBR1/2b3bK/1QQr4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 Kg2 Kf7 a4 c5 e4 g5 h4 b5 d4 c3 d5 c2 d6 f3+ Kh2 c4 a5 f4 h5 b3 d7 b4 a6 c3 a7 b2 h6 f2 e5 b3 e6+ Kg6 h7 f3 e7 g3+ Kh3 g4+ Kh4 g2 Kg3 Qb6 e8R Bc5 Nd2 b1Q Nh3 g1N Ra2 b2 Nb3 Ba6 Na5 Ne2+ Kh2 Ne7 Bd2 c1R Be1 c2 Nc4 Nf4 Bg2 f1B Bc3 f2 Bf3 Bg2 Ra3 f1R Bd4 Qe6 Qd2 Qe3 Nd6 Rfd1 Nf5 Bb6 Ng7 Rf8 Rd3 Rf5 Rg1 Ra5 Qb4 Kh6 Rd2 Nfg6 Nf4 Nh8 Nfh5 Kg6 Qc3 Qa2 Qa3 Qae6 Qa2 Qf5 Qb1 Bh3 Rg3 Bg2 Qa1 b1B Qa2 Nec6 Re4 Ne7 Rd3 Rf1 Qb3 Rcd1 Qb2 c1Q Rd2 Qcc5 Qc1 Rf2 Rd3 Rfa2 Rd2 Bc2 Rd3 Nbc6 Qb1 Rc8 a8Q Nb8 Qd5 Rc6 Qc4 Bb7 Qc3 Ra8 Qcb2 Ba6 Q2c1 Ra3 Bb2 Ra1 Rd5 Ra5 Bd4
4N1Qb/prk1K2P/bn2bN1N/3q3n/1R4nq/PR3q2/2bQB1rr/1B3n2 b - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 b5 b3 bxc4 Bb2 h6 Bf6 gxf4 g5 Nd7 g6 Nb8 Bg5 hxg5 Ke2 Kd7 h4 c5 d4 e5 a3 f5 b4 g4 g7 f3+ Ke3 f2 h5 c3 b5 c2 d5 c1Q+ Qd2 c4 h6 c3 b6 c2 b7 f4+ Ke2 e3 Kd3 e2 Kc4 e1Q d6 f3 Kd5 e4 Qe3 g3 Qc5 g2 Nd2 e3 Ne2 g1R Qc4 Rg2 Qd3 Nf6+ Ke5 Qcd1 g8B c1N Rh3 Nb3 Nc4 Nh5 Nd4 e2 Qb1 Nd2 Qa2 Bg7+ Kd5 Rh7 Rh2 Bh8 Rh3 Rh2 Bg2 f1B Rb1 Qeh4 Nf5 e1N Rb4 f2 Be4 Nc2 Rhb3 Qf3 Bf7 Rg7 h7 Bd3 Nh6 Nf1 Ke5 Nce3 Qd2 Qg8 Bfg6 Bb1 Bd3 Bc2 Be2 Kd8 d7 Kc7 Nd6 Ng4+ Kd4 Qgd8 Be4 Rg8+ Kd5 Qdg5+ Ke6 Qc5 Qg5 Qd5+ Ke7 Rg6 d8N Be6 Nc6 Nd7 Ne5 Nb6 Nd7 Rb8 Nf6 Ne5 Qd2 Rgg2 Ndf5 Ng4 Ng7 Nfg3 Bf5 f1B Be4 Bd1 Bb1 Bc2 Bd1 Ba6 Be2 Nf1 Ne8+ Kc6 Ng7 Rd8 b8Q Rd7+ Kf8 Rc7 Ne8 Rb7 Qg3 Nge3 Qg8 Ng4 Nd6 Kc7 Ke8 Qe1 Ke7 Qh4 Ne8+
1bQr1bkb/Qq5r/b2BN1K1/R1P1Np2/r5R1/1P1r4/r2n1r1n/1B1R1n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 Kd3 d5 e4 f5 g4 Kf7 c4 h5 g5 a3 e5 f3 c5 a2 b3 h3 Rh2 h4 Qe2 a4 Qd1 f2 Nf3 a3 Rg2 h2 Qe1 h1R Qc3 h3 Qe1 h2 Ng1 Qc7 Bb2 Nd7 Qb4 Ra4 Qc3 Ngf6 e6+ Kg8 e7 Nb6 e8Q Rh7 g6 Qb7 g7 Ng4 Ne2 Nc4 Rg1 Nd2 Bg2 f1N Kc2 d3+ Kd1 d4 Bc6 Qb8 Bg2 Ba6 Qa5 Qa8 Be4 Qb7 Rg3 Rg1 Qc8 h1R Nf4 Ngh2 Ne6 Rg2 Rg4 Rf2 Qb6 Rg1 Qa7 Rgg2 Bc1 Ndf3 Bf4 d2 Kc2 d3+ Kc3 d1R Bd6 d2 Bc2 Rc1 Rd4 d1R Nd2 Rb1 Nc4 N3d2 Kd3 Rb2 Rg4 Rg3+ Kd4 Rgf3 Ke5 Rd3 Rb1 a1B Kf6 Ra2+ Kg6 Be5 Rc1 Bf4 Bb1 Be5 Be7 Bb8 Ne5 Rb2 Bd6 a2 Qd7 a1B Qc8 Re1 Rd1 Rba2 Rb4 Re4 Rb5 Red4 Ra5 Bc3 Bc7 Rd8 Bd6 Bb2 Nf3 Ne3 Kg5 Kf7 g8R Nef1 Rg6 Bbg7 Ne5+ Kg8 Rf6 Bh8 Rg6+ Rg7 Kh5 Nhf3 Rg4 N3h2 Ng5 Rf7 Kg6 Rh7 Ne6
k4b2/2N2r1r/4Q3/bPr1b1r1/1QQ2P2/1K1BNbpn/RBR1n3/q4rnr b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Kd2 d5 f4 Kd7 h4 Kc6 b4 Kb7 c4 e5 Kc2 g5 c5 a5 h5 d3+ Kb2 g3 h6 d2 h7 a3+ Kb3 g2 b5 g4 Qe2 d1R Kc3 a2 Qc4 g3 Ne2 g1N Bg2 a4 Qb3 d4+ Kb2 a3+ Kc2 d3+ Kc3 d2 Bh3 e3 Be6 e4 Bd5+ Nc6 Qc2 Qa5+ Kc4 Nh6 Nec3 e2 Kb3 e1R Rh4 e3 Rg4 e2 Qb2 Rf1 Rg7+ Nf7 Bc4 e1B Ne4 Bg4 Rg5 Rc8 Qe5 Bf3 Nf6 Ka8 Rg6 Ng5 Bd3 N5h3 Ne8 Rg8 Rf6 Rg5 h8Q Rc7 Rd6 Rh7 Bb2 Rc1 Qe6 d1R Qc3 Rc2 Nd2 Nd4+ Kc4 Nde2 c6 Rdc1 c7 Rd1 Rc1 a1B Kb3 a2 Qb4 Rcc5 Nc4 Qa7 Rc2 Rb1 Qa4 Ba5 Ne3 Rbc1 Qa3 Rcf5 Qa4 Rff7 Qb4 Qd4 Ra6+ Qa7 Ba3 Be5 Bb2 a1R c8Q+ Bb8 Rd2 Rcc5 Rc2 Rac1 Qec4 Rb1 Qg4 Be5 Nc7+ Kb7 Rd6 Rf2 Rc1 Bb6 Bc2 Qa1 Qge6 Ba5 Rd2 Rh2 Bd3 Kb8 Rc3 Rd1 Bc1 Rh1 Ra2 Rf1 Bb2 Kb7 Rc2 Ka7 Ncd5 Ka8 Nc7+
b3b1K1/6nn/1b1r1P1P/1Br5/BrkN1n2/1r2r1Nq/pQ1R1RQr/6Bb b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 f4 Ke6 c4 a5 h4 d5 b4 g5 b5 a3 h5 g3 c5 g4 c6 d3+ Ke3 g2 Kd4 a4 b6 a2 b7 d2 c7 a3 Qb3 d1B Nc3 e3 Bc4 g3 Nb5 e2 Qc3 e1R Kc5 Re4 Na7 Qd7 Bb3 Nf6 Rb1 a1R Qd4 a2 Qf2 Rb4 Qf1 Ne8 Nb5 Ra6 Na3 Rd6 Qf2 Ng7 Nc2 Bf3 Nh3 g1R Qd4 g2 Bb2 Rc1 Bc4 g1N Ne3 Ne2 Rh2 Bh1 Ba3 Rc3 Re1 Rab1 Rf1 R1b3 Qd2 Rh6 f5+ Ke5 f6 d4 Rg1 d3 Rg6 Nf4 Ng5 Qh3 Qe2 d2 Ne6 d1B Nd4 Bd7 c8B Be8 Qg2 Bf3 Bd7 Ke4 Rg3 e5 Ba4 Be7 Bb2 Bd8 Nf1 Re3 Bcb5 Ba5 Bc6+ Kd3 Ba3 e4 Bcb5+ Kc3 Rg6 Rh7 Ng3 Re2 Qf1 e3 Bc1 Rbb2 h6 Ngh5 Rg2 Rc7+ Bc6 Rb6 Ngf5 Ng7 R6g3 Bd5 Rf3 Rec2 Ng3 Rc8 Rg1 Rh2 Qg2 Kd3 Rff1 e2 Be3 e1R Rf3 Ree2 Rd1+ Kc3 Bg1+ Re3 Rf2 Rb1 Rdd2 R6b2 Bb3 Nd7+ Kb5 Rc7 b8Q Nf8 Kc5 Nh7 Ba4 Rc8 Qb5 Bc7 Bd7 Ba8 Bc6 Rdd8 Bd7 Bb6+ Kd6 Rc7 Qb7 Rc5 Qg2 Rd3 Ke7 Rf3 Bc6 Rd6 Qd3+ Kb4 Qa3+ Kc4 Bd7 Rb4 Bdb5+ Kd5 Qc1 R1b3 Qb2 Ra3 Bd7 Kc4 Bdc6 Rab3 Bd7 Ng5 Kf8 Nh7+ Kg8 Rfe3 Bdb5+
Qnn1Bn2/1n5R/1B2b3/1QrR1Q1q/2rbnr2/p1P2bk1/1PK4N/r1N3b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 e4 Ke6 h4 Ke5 h5 d5 c3 g5 h6 a5 h7 f5 Qe1 a3 Kd3 f3 Bg2 f4 Nd2 g3 Rb1 a4 Rh6 g4 Rh1 a2 Qf1 a1R Rh2 a3 Ne2 f2 Qe1 f1R Bh1 f3 Rh6 g2 Ng3 Kf4 e5 g1B e6 f2 e7 Be6 e8Q Ne7 Bf3 Nc8 Rh2 Qh4 Qh5 Ra4 Be4 Rc4 Qd1 Bg7 Nh1 g3 Qg6 g2 Kc2 d3+ Kb3 d4 Rh3 Qh5 Nf3+ d2 Bb7 d3 Bd5 Bd4 Be4 Rg8 Qh6+ Rg5 Qg6 Rgc5 Qf7+ Kg4 Qc2 d1B h8Q d2 Qd7 Kf4 Ne5 Bf3 Nd3+ Kg4 Bg6 d1N Bh6 Ne3 Nc1 Nf5 Ng3 Nfd6 Be8 Nb7 Bg7 Kf4 Qb5 Kg4 Ne4 Kf4 Ng5 Kg4 Rh1 Kg3 Qch7 Rd1 Bf6 f1N Kc2 Nd2 Bd8 Ne4 Qf5 Rf1 Rh2 Bg4 Bb6 Rf4 Rh4 Bf3 Rh1 Bh2 Qhf8 g1N Qh8 Nh3 Qhf8 Bg2 Nf3 Bhg1 Nh2 Nhg5 Qg8 Bd7 Qgd5 Bf3 Qdc6 Be6 Qcd5 Na5 Qdc6 Nh7 Qa8 Bge3 Rd1 Bg1 Rd2 Nb7 Rd3 Bh8 Rd5 Bhd4 Ng4 Qh3 Na2 Bh2 Rh1 Bhg1 Nc1 Nf8 Rh2 Qh6 Rh5 Qg6 Rh7 Qh5 Nh2
bq2rbQQ/2Br4/3rbRn1/1Bk2Qp1/P4bqb/1PrR3N/n1N5/2b2K2 b - - 0 1 illegal: No proof kernel
4Rrb1/r4Br1/bn1Q1B2/1kp5/2br1n2/nP3QB1/1n2bR1P/KNN1b1q1 b - - 0 1 illegal: No proof kernel
B5K1/1bR1pnQP/q1nr3B/3bkN1b/1Rq4B/1bb3n1/2b2PrQ/2N2n2 b - - 0 1 illegal: No proof kernel
Qnb1q2b/2KP1r2/B3qqk1/2BpP3/qQ2r1r1/r5N1/2R1R3/1rNrB1n1 b - - 0 1 illegal: No proof kernel
RK1Qr3/2P1pPQ1/B2bb3/2BbN3/r1nnN2b/1n1Rqk2/2n1qn1n/4B3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 c4 Kf6 h4 Ke5 a4 b5 c5 g5 c6 d5 a5 b3 f3 d3+ Ke3 b4 a6 g3 a7 g2 c7 b2 h5 d4+ Kf2 b3 Kg3 e3 h6 e2 f4+ Ke4 h7 e1N f5 d2 f6 g4 f7 d3 Ra6 Nh6 Ne2 g1B Qc2 d1B Rg6 Bh2+ Kh4 g3 Kg5 g2 Rg8 g1Q+ Ng3+ Kf3 Be3 d2 Qd3 Ng4 Qc2 Qd3 Bf2 Be6 Qc1 Bh6+ Kh4 Nc6 Qc3 Nc2 Bc5 Qge3 Na3 b1N Ne4 b2 Qg7 Bd6 Nc4 Qde2 Rd8 Rg8 h8B N6d4 Kh3 Nba3 Ne5+ Kf4+ Kh4 b1N Rh3 Re8 Kh5 Bg5 Kg6 Bh4 Rb8 Q3f2 Rd3 Nh2 Rd8 Nc4 Rc8 Rb8 a8Q Rb4 Qd5 Ra4 Ra8 Qfe3 Rb3 Nb6 Rb8 Nc6 Rd8 Bh3 Nd7 Qc4 Qge5+ Kf3 Ra8 Be2 Ng3+ Kg4 Qa1 d1N Bc3 Nf2 Be1 Nd2 Qg7 N6d4 Ne5+ Kf4 Rc3 Bf3 Bd3 N2b3 Bf1 Ne2 Qd3 Bb7 Ne4 Qa6 Qd5 Ned4 Be2 Qad3 Bf1 Qd1 Ba6 Nc4 Rd3 Qdd2 Nf3 Be5 Qd8 Bd6 Ne5 Nc6 Ng4 Kf3 Kf5 Qd1 Ke6 N6d4+ Kd7 Bd5 Kc8 Qd2 Kb8 Qe2 Ngf6 Bg4 Nd7 Bge6 Ne5+
1b1K4/1qpn3r/1B1bRP2/2nQNN1n/r2nb3/1r2QR1P/1bB1r1Q1/nk6 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 a4 e5+ Kg6 b5 Kf7 g5 f4 g3 f5 g4 a5 e3 a6 e2 h3 Kd3 a7 b3 Ba3 b2 Bb4 e4 Qa4 e3 Bg2 e1N Bd5 c3 Bb7 g2 Bd5 e2 Bc6 g3 Qa2 Kc2 d4 Bb7 d5 Bd6 Ke6 Rh7 Nf3 g1N Bd7 g2 Nh4 Nf6 Ng6 Ngf3 Qa5 g1B Ne7 Qc8 Ra3 Nd3 Ra1 e1N Nd2 b1R Qa3 Rb2 Bc5 b4 Nc4 b3 Ne5 Nh5 f6 Bd4 Ra2 Kb1 Rf1 c2 Bb6 c1B Nf5 Nc2 Qc5 Na1 Ra6 Bg1 Qe3 Re2 Rf2 b2 Rf1 Bf8 d6 Be4 Rf2 Qb7 Ba4 Be7 d7 Bd6 d8Q Nd7 Rf1 Bf2 Bd1 Bg1 Qg8 Bf2 Qg7 Nd4+ Kf7 Bg1 Rf4 N3c5 Rf3 Rb8 a8Q Bf2 Qa7 Ra8 Qb8 Bg1 Ke8 Bf2 Qg2 Bg1 Ra3 Ra4 Qa8 Ra5 Qa6 Nde6 Ng6 Be7 Qc4 Na6 Rd3 Ra4 Qcc5 Ka2 Rd6 b1R Qf4 Rb3 Ne5 Kb1 Qd5 Bb2 Ba5 Ba7 Bb6 Bb8 Qe3 Nd4 Re6 Bd6 Kd8 Nac5 Bc2+
2RbQb2/nP1b1rq1/KB2n1bN/1pr4k/4rPB1/R2N1b2/3r3Q/4nQn1 b - - 0 1 illegal: No proof kernel
1R1b1rBq/R1n1PqQ1/3qrb2/3N1n1Q/6N1/1r1p1K2/1B2rb1P/2qbk2N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 c4 d5 a5 f5 a6 b5 a7 g5 c5 f3 c6 b3 c7 g3+ Ke1 g2 Kf2 f4 Ra4 b4 Be2 b2 Nd2 b1R Ra5 b3 Ba6 g4 Nh3 g1B+ Ke1 f2+ Ke2 f1R Bd3 g3 Rb5 g2 Bc4 b2 Rb7 f3+ Kd3 f2 Ke2 d3+ Kf3 Kd4 e5 Kc3 e6 d4 e7 Re1 Nf4 f1Q+ Kg3 Na6 Nh3 Bf2+ Kf4 g1B Qe2 Nh6 Qe4 Bg4 c8N Re2 Ba2 Nf5 Rb4 Nc7 Rb7 Rh6 Be6 Bg7 Qd5 Qh8 Rb8 Bf6 Nf3 d2 Ne5 d1Q Bg8 d3 Qf3 Qb3 Nb6 Qa3 Qg2 Qd6 Nd5+ Kc2 Qg3 Kd1 Qf3 Bb6 Nf2+ Ke1 Qg2 Bh5 Qg7 Ba5 Rb5 Rc8 a8Q Rf8 Qe8 Rg6 Rb8 Bf3 Ne4 Bf2 Ng3 Bh4 Rb6 Na6 Nb4 Nd4+ Qef7 Kd1 Rc6 Bd8 Rb6 Re6 Rb8 Re1 Rg1 Nc7 Rh1 Bg1 Ra8 Be2+ Ke4 Qf6 Ra3 Nf5 Ra6 Bf2 Qh5 Qf7 Ra7 Bf6 Rg1 Bf3+ Kf4 Be2 Nh1 Bf3 Rg4 Re3 Nd5 Ke1 Rh4 Bd1 Rg4 Re2 Kf3 Ra1 Rga4 b1Q Rb4 Ra3 Bb2 Rb3 Rb8 Qc1 Ng4
2N2N2/2B1r2b/BqrrRrQ1/4N1bK/6P1/2p2Pr1/bp1kn2R/n1Q2n1q b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kf7 d4 Ke6 g4 Kd5 a4 b5 f3 h5 a5 e5 a6 c5 a7 b3 Kf2 h3 Kg3 e3 Ra5 b2 Ra1 e2 Qb3 e1N Bh6 b4 Ra2 h4+ Kf2 h2 Ra4 h3 Kg3 e4 Qc3 b3 Ra6 e3 Re6 e2 Rf6 Be6 Kh4 Ne7 Qc2 c3 Kg5 Kc4 d5 Nbc6 d6 Nd5 d7 Qb6 d8Q Be7 Qd6 Rhd8 Qg6 c2 Qc7 c1R Qb8 Ne3 Kh4 Rd6 Bg7 N1c2 Bf8 N6d4 Qh7 Na1 Qf7 Kd3 Qg7 c4 Nd2 b1B Qh6 c3 Qb7 Rc8 a8N Rcc6 Nc4 b2 Qg6+ Bf5 Kh5 Ba2 Ne5+ Kd2 Re6 e1R Ba6 Nf1 Ne2 Bg5 Nf4 Ne2 Qbh7 Rcd1 Be7 Bd3 Bd8 Be4 Re7 Rf6 Bc7 Bc2 Ne6 Bd3 Rg1 h1R Rg2 h2 Nf8 Rg1 Re6 h1Q+ Rh2 Rg2 Qd7 Rg3 Qdh7 Bb5 Qb1 Bd3 Qh6 Bh7 Qg7 Qb4 Nb6 Qd4 Nc8 Qb6 Rh3 Ke3 Qf7 Rdd6 Qfg6 Kd2 Rh2 Ke3 Re8 Ng1 Re7 Re2 Nf7+ Kd2 Re3 Qg2 Re8 Ree6 Ne5 Ne2 Re7 Qh1 Re8 Rf7 Re7 Ref6 Re6 Re7 Qc1+
bn3R2/1Bb2KN1/Q2kr2B/N1n2b2/B2qp3/5pPQ/2rPbRq1/n1q2b2 b - - 0 1 illegal: No proof kernel
1R2r2q/1b1b1b1q/1K1B1NR1/6Np/1P2Q1QB/b1qQ2nP/2k2rnp/4n1b1 b - - 0 1 illegal: No possible last move
2bQ3B/R2n1b2/1nN2RbN/n2BP2b/BP6/4K1b1/q1pr1rpQ/1r1q2k1 b - - 0 1 illegal: No proof kernel
1q2rr1N/4N3/Bkn2Q2/q1nrPp1b/4Rprq/bRQ2P2/1r1n4/1Q1K1B2 b - - 0 1 legal: proof: d4 a5 h4 c5 b4 cxd4 h5 axb4 h6 e5 Bf4 exf4 Nd2 gxh6 Nb1 h5 Qd2 h4 Qc1 Be7 Qd1 Bf8 e4 b5 g4 d5 c4 Kd7 a4 Kc6 g5 h5 f3 h3 g6 h4 e5 d3 g7 b3 c5 d4 a5 b2 a6 d2+ Ke2 d3+ Kf2 h2 a7 b4 Ne2 b3 Ra2 h3 Ra4 Qa5 Qc1 d1R Rc4 d2 Rc2 Ne7 g8Q Bg4 Rc3 f5 Rd3 Bh5 Qgc4 Nd7 Nec3 Re8 Na3 b1N Ke2 b2 a8Q+ Kc7 c6 Kb6 c7 Nc5 c8B Nc6 Rg1 h1Q Ba6 h2 Nab5 Bd6 Qf7 Rhf8 Qc8 Be7 Nd6 Re1+ Kf2 d1R Qf6 Nd2 Nf7 b1R Nh8 Rb2 Qb1 Bd6 Rg2 Be7 Re3 Bd6 Re4 Be7 Bfc4 Rg1 Ke2 Bd6 Rg7 Rg4 Rd7 Be7 Rd3 Qg1 Bcb5 h1Q Bc4 Qh4 Nd5+ Ka7 Rde3 Bd6 Ne7 Kb6 Ra3 Qd4 Bcb5 Qd5 Rb3 Qf7 Neg6 Qb7 Ne7 Qa7 Qce6 Qb8 Qc4 Ne6 Qcc1 Ba3 Qc3 Nc5 Qd6 Rh1 Qf6 Rh2+ Kd1 Re2 Qa2 Re3 Qa1 Rd3 Qb1 Rd5 Bf1+
q1n4R/1b1bk1Bb/q1B1r2n/QP3q2/2bK1NQp/8/QpPb1N2/4Rn1r b - - 0 1 illegal: No proof kernel
2n5/q1NBnk2/r2r1r1P/q1NP2pq/RQ4R1/np6/1b2n3/1b1QKRBn b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 g5 e4 b5 d4 f5 h4 c5 d5 b3 a5 f3 a6 g3 a7 f4 e5 f2+ Ke2 f3+ Kd2 c3+ Ke3 g2 e6 b2 e7 c2 Kd2 c4 h5 c3+ Ke3 b4 h6 b3 Kd3 Bg7 Na3 b1N Bb2 c1Q Nh3 g1Q Qc2 Qa5 Ra2 Qd1+ Ke3 Nd7 Bg2 f1R+ Nf2 Nb6 Ra1 Bf5 Nb5 Na3 Qd3 c2 Nc7+ Kf7 e8R c1N Bd4 Ne2 Bh3 Nc8 Re4 Nge7 Rg4 Rd8 Qb5 Rd7 Qb4 Bb1 Ra2 Rd6 Bc5 Qg3 Ne4 Bb2 Bb6 Qh4 Nc5 Qh5 Rhg1 Rf2 Rf1 Qc2 Ra1 Qc4 Kd2 Qca6 Rc1 Rf1 Re1 f2 Ra2 Rb8 a8Q Qa7 Qc6 Ra8 Kd1 Rg1 Rf1 Rg3 Qcb5 Rf3 Qd3 Rff6 Qc2 Qb7 Kd2 Ra6 Qd1 Qa7 Ra1 Nb5 Ra4 Na3 Rfg1 f1N+ Ke1 Nfg3 Rf1 Nf4 Nd3 Nh1 Bg1 Ne2 Nc5 Nc6 Rg3 N6e7 Bd7 Rac6 Rg2 Ra6 Rg4
2B2Q2/QRrnB3/2b4p/2n4B/NN1p1Knb/qP2nn2/q2P3R/r2kb2q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 f5 gxh4 f6 c5 b3 c4 e3 c3 Qg4 exf6 Qb4 f5 Qa3 f4 Qb2 cxb2 Kf2 Ke7 Kf3 Ke6 c4 Kf5 c5 a5 g3 d5 c6 h3 c7 h6 Bb5 h2 Ra3 Rh7 Bc6 Bc5 Bb7 Qf8 Ra1 a3 Bc6 a4 Ne2 a2 Rd1 h1Q+ Kf2 Ke4 g4 Kd3 g5 Kc2 g6 f5 g7 a3 Bd7 f3 Kg3 f4+ Kg4 f2 e4 f1N e5 f3 e6 f2 e7 Ne3+ Kg3 Nf6 g8B f1N+ Kf4 Bb7 e8Q Nfg4+ Qf7 Bc6 c8Q Nfh2 Rf1 Nf3 Be8 Nd7 Nbc3 b1N Na4 Nc3 Qb7 Ne4 Rb1 a1Q Qa7 a2 Ba3 Bd4 Rf2 Nec5 Nc1 Kd1 Rh2 Bf6 Rb2 Bh4 Rc2 Be1 Nd3 Qb2 Rc4 a1B Rb4 Qa2 Rb7 Bf6 Nb4 d4 Qe7 Rg7 Be6 Bfh4+ Bf5 Ndf6 Qd6 Rc7 Bc8 Nfd7+ Qf6 Qg8 Qd8 Qc4 Bh5 Qc1 Nc2 Qcb2 Bb4 Qba3 Qf8 Na6 Bd6 Nac5 Nb4 Qc2 Nb6 Qab2 Qb8 Ra1 Be7 Qa3 Qa7 Qca2 Na4
3qqR1r/2N3kb/N1Q1P1N1/1pb5/bB3PQ1/4bK1B/1p3nr1/qR1n1br1 b - - 0 1 illegal: No proof kernel
3KNb1b/R2B2Q1/2b1pPPq/R3Q3/3n1bRp/4rb2/1rq1k1q1/1nB1N1n1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 a4 b5 f4 c5 g4 h5 d3 h3 f5 b3 a5 c3 a6 b2 a7 c4 Bf4 h4 Qe1 h2 Bc7 e3 Qd2 e2 Bg2 e1B Bg3 c2 Qa5 Ke3 d4 c1Q d5 c3 d6 e6+ Kg6 b4 Kf7 c2 g5 b3 d7 Nc6 g6 Bc3 Qb5 Nf6 Nh3 Ng4 Qb8 Ke2 Ng5 Nf2 Bf4 Nh3 Na3 b1N Nf3 b2 Ne1 Ng1 Nc4 Nd4 Nd6 Qg5 Ke8 Bb7 d8Q Bf3 Ra5 Rh5 Qb7 Rb8 a8R Qe3 Qf7 c1B Qg7 Qh6 R8a6 Qf2 Ra7 Rb3 Bg5 Bf4 Qdf6 Rb4 Kd8 Rb5 Bh3 Qg2 Ne8 Re5 Bg4 Re3 Qe5 Na3 Qg8 b1Q Qgg7 Qc2 Bh3 Nb1 Bg4 Nh3 Rf1 h1B Rg1 Qf2 Rg2 Ng1 Bh3 Bc6 Rg4 Bhf3 Bg2 Ba1 Bh1 Qf1 Be7 Qg2 Ba3 Qh8 Bc1 Rh7 Qgf6 Rb7 Qf7 Rb2 Qfg7 Qf2 Bg2 Qh6 Bf1+ Kd1 Ba6 Qg2 Bc8 Ke2 Bd7 Rb4 Qh8 Nb3 Qd6 Bd4 Qh7 Bh8 f6 Nd4 Qe5 Rb2 Qg7
5bb1/1RQ2bN1/n2P1nr1/NnR2rp1/KP2knq1/2B3q1/B2qp3/1n2R2Q b - - 0 1 illegal: No proof kernel
1Nnb2nr/2r2Q2/1q1Pp1q1/pN1rP3/B3B2b/3n4/2Q2bbK/kBR1b2R b - - 0 1 illegal: No proof kernel
N3b3/1b4q1/2p3n1/k3np1N/1bn2n1P/QKB1r1P1/BQ2Rqn1/2rR1qN1 b - - 0 1 illegal: No possible last move
4Q2q/K3R2N/1P1rr1P1/1B1n1r1q/b2n2p1/1q1Rp3/Qb1Q3n/1rBk2rN b - - 0 1 illegal: No possible last move
2Br3b/1qQ1k1qP/r2rq2b/3bBnP1/p2n1N2/1Qp5/N2R2R1/K1R3bb b - - 0 1 illegal: No proof kernel
4B1n1/2r1qN1P/RQqRbB2/1Q1pp1P1/B3b3/2n2n2/n1r2nN1/1r2bK1k b - - 0 1 illegal: No proof kernel
bK1QrN2/5P2/3P2rb/2p1B1Qr/n2k2r1/2Rq1R2/1pnR1r2/b1qB2qN b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 h5 a4 b5 d4 c5 a5 e5+ Ke3 b3 f4 b4 f5 h3 a6 b2 g5 h2 g6 c3 a7 b3 g7 h4 f6 c2 f7 h3 Qe1 Na6 Bd2 c1Q Qh4 Rh6 Ra5 Nf6 g8R Nb4 Rh8 Bb7 Qf4 Rg6 Rg8 Nd7 Bb5 Bh6 Nf3 Nb6 Ng5 Na4 Rf1 h1R Nh7 h2 Qg5 Rg1 Rf3 h1R Nf8 Rh5 Be2 Rg4 Bd1 Qd7 Ra6 Re8 a8Q Bc6 Qc8 Ba8 Nc3+ Kc4 d5 b1Q Qd8 Nc2+ Kf2 Qf5 d6 Kd4 Bf4 e3+ Ke2 Qa1 Ne4 Qab1 Ng3 e4 Nh1 Qa1 Kf1 e2+ Kf2 e1B+ Ke2 e3 Be5+ Kc4 Rb6 Bc3 Rb4+ Kd5 Rc4 Qab1 Rg7 Ba1 Rc3 b2 Rg8 Qf6 Kd3 e2 Rh8 e1R Rh7 Re2 Rh8 Rg1 Rh7 Qg7 Rh8 Kc6 Kc4 Rf2 Rg8 Kb7 Kb5 Rg4 Ka5 Kc6 Ka6 Kd5 Ka7 Qh7 Bf4+ Kd4 Kb8 Rf6 Rg6 Rfe6 Rf6 Qd3 Rf5 Rf6 Re5 Rg6 Re2 Ree6 Rd2 Re8 Be2 Qg1 Bd1 Qc1 Be5+
1Q2b3/1Q2PNb1/n1b2qrn/Pn5q/Bp1k4/3R1r1p/1b2R1R1/B1r1bNK1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Ke7 e4 Ke6 d4 h5 g4 b5 a4 f5 d5+ Ke5 a5 c5 g5 c3 d6 c4 d7 b3 g6 f3 g7 b2 Be3 c2 Ra2 c1B Qe1 f4 Bd2 c3 Qe2 b4 Be3 c2 Na3 b1N Qc4 h3 Be2 h2 Qa6 h4 Qb7 h3 Bd1 Bb2 Bb6 c1B Bc5 Nh6 g8R Qf6 d8Q Bg7 Qdb6 Bd7 Ba4 Ra6 Rf8 Nc3 Ne2 Bd2 Rf1 h1B Kg1 Be8 Be3 Nb5 Rf2 Be1 Ng3 Rg8 Rf7 Rf8 Rd7 Qg5 Rd8 Qh5 Nf1 Bg2 Q6a7 Rg6 Rd3 Na6 Re2 Rf7 Bc5 Rc7 Qab8 f2+ Kh2 f3 Bd4+ Ke6 e5 Rc1 Nc4 Bh1 Qb6+ Kd5 e6 Bg2 e7 Bh1 Nfd2 f1R Nd6 f2 Nf7 Bf3 Nb1 Kc4 Q6b7 Bfc6 Bc3 Ba3 Ba1 Bab2 Nd2+ Kc5 Rg3 Kd4 Rc3 Rfg1 Rb3 R1g3 Nf1 Rf3 Rd3+ Kc5 Ne3 f1Q Rg2 Qf2 Nf1 Qfh4 Kg1 Qf6 Rda3 Kd4 Rb3 Bbc3 Re2 Bb2 Rd3+
q4N1r/1B1P4/1BnK1n1N/Q1rR1rq1/q1p3B1/3b2pP/3R1r1b/1Qr1k2n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Kd7 d4 Kd6 e4 f5 a4 c5 e5+ Kd5 a5 Ke4 a6 b5 d5 g5 h3 c3 d6 f3 Kg3 f4+ Kf2 b3 a7 c4 e6 c2 e7 b4 e8B g3+ Ke1 b2 Kd2 f2 Bf7 g4 Ke2 b3 Ra3 g2 Qd2 Nc6 Ra5 Nf6 Rh5 Bf5 d7 Bd6 Be6 Rc8 Qb4 f3+ Kd2 Bh2 Na3 b1R Kc3 b2 Ne2 g1Q Be3 c1R+ Nc2 Qa5 a8Q Qa4 Bg2 f1R Qab8 Rf2 Bb6 Rcf1 Qa3 Rbc1 Nf4 b1Q Ng6 Qa2 Nf8 Qa8 Qaa7 Qa4 Qa5 Rc7 Rg5 Kf4 Qb7 Bd3 Rd5 Kg3 Qb8 Rfe1 Qb7 Re5 Qb8 Rf5 Qb7 Ne7 Kd4 Nc6+ Kc5 Rc8 Bf1 Rc7 Be2 Qg2 Rd1 Qg1 Rd2 Kg2 Bd1 Kf1 Ne3+ Ke1 Bf7 Qg3 Bg6 Qf4 Be2 Qg5 Bh5 Rc8 Bf1 Rc7 Bg2 Ne5+ Kd6 Re2 Rc5 f2 Ba7 f1N Qb1 Ref2 Bb6 Ng3 Bb7 Nh1 Rd5 g3 Ng4 Rc5 Nh6 Nc6 Bg4
2r5/R1P2K1b/n1n1R3/Q1rrB1bn/1B1qq3/2QNpPk1/B3p1rr/6Nq b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kg6 a4 Kf5 c4 Kf4 h5 e5 a5 g5 a6 b5 f3 d5 a7 g3 h6 e3+ Kd3 g4 c5 b3 c6 b2 c7 e4+ Kc2 g2 Kb3 b4 h7 g3 Na3 b1Q+ Bb2 d3 Rh3 d2 Rh1 d4 Kc4 d3 Qc2 d1R Rh6 e2 Rh1 e3 Rh5 d2 Rg5 b3 Qd3 Ne7 Re5 Bf5 Re6 Bh6 Qc3 Bg5 Rd6 Na6 Ra2 Nc6 Kd5 Rc1 Ra1 d1R+ Qd2 Rc8 Bd4 b2 a8Q Be4+ Ke6 Rc5 Qe1 Bc2 Bf6 Rdd5 Kf7 Bf5 Bd4 Qe4 Nc2 b1Q Re6 Qd6 Qc1 Qde5 Bb2 Q5d4 Ne1 Qc4 Bc3 Qcd4 Re8 Re5 Bb4 Nab8 Qc3 Qc1 Re7 Rhe8 h8B Qcb1 Bg7 Rh8 Qa6 Rh3 Bh8 Bh7 Nd3+ Kf5 Re8 Rh2 Nh3 g1N Re7 g2 Nhf4 Nh3 Qb6 g1R Ra7 Na6 Qa5 Rg4 Bg2 Qh1 Re8 Re6 Be5 Rd6 Ng6 Nf4 Bh3 Nh5 Ngf4 Bh6 Re7 Kg5 Re8 Rgg2 Be6 Kh4 Nh3 Bg5 Ng1 Rdd8 Ba2 Rdd5 Bh8 Kg3 Re6 Ncb8 Bg7 Nc6 Be5+
8/bqP1Pr1B/N2pQB2/7K/Qnkn2R1/b1qnR3/2r1Qp2/rbbb2N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 c4 f5 h4 g5 a5 b5 a6 f3 Kg3 f2 a7 d3 e5 b3 h5 b2 e6 d2 h6 b4 h7 b3 Rh4 f4+ Kg2 f3+ Kg3 Nc6 Ne2 Nh6 Rh1 Nb4 Nf4 Qa5 Nc3 b1B Ra2 b2 Nfd5 Nf5+ Kh2 g3+ Kh3 g2 Kg4 g1B Nb6 Nd4 Bd3 f1R Nbd5 Be3 Kh5 g4 Rg1 g3 Qb3 d1N Ra3 g2 Ne2 Nf2 Nc7 Beh6 Bc2 Nfd3 Bg5 Bd6 Bd8 Bc1 Bf6 Ba6 e7 Rhc8 h8Q Bb5 Nc3 Ba4 Ne2 Rf2 Qg8 Rf8 Qg4 Rf7 Qa2 Bb3 Qe6 Ba4 Rh1 g1B Rh4 Rh2 Rc3 Bge3 Ng1 Re2 Bd1 f2 Rg4 Rd2 Bf3 Bd1 Be4 Rc2 Ra3 Nbc6 Bh7 Qc3 Rb3 Ncb4 Qa6 Ba2 Qa4 b1Q Ra3 Qbb2 Rb3 Bb1 Na6+ Kb6 Qa2 Kc6 c5 Kb5 c6 Bc5 c7 d6 Ra3 Qbb3 Qb2 Qd5+ Qe5 Qb7 Qf5 Kc4 Qd7 Raf8 a8Q Ba7 Rb3 Bed2 Qa2 Ba3 Qae8 Bdc1 Qe6+ Nd5 Qe2 Nb4 Qd7 Ra8 Qf5 Bab2 Qa4 Ba3 Qfe6+ Qd5+ Bf5 Bb8 Nh3 Qb2 Qe1 Nc5 Re3 Qc3 Qe2+ Nd3 Qa5 Bab2 Nc5 Ra6 Ng1 Ba7 Qc8 Qb7 Bh7 Kd5 Qb5 Ra1 Qa4 Ba3 Na6 Kc4 Qe6+
1b2b3/qnpnK1RN/1r1n2Nq/1Q2B1Pr/1pBR3r/n1RQ2kP/7q/4n3 b - - 0 1 illegal: No possible last move
qbn1kR2/rqp1P1K1/r3P2p/3bN1Q1/1B1qn3/1n1B4/2R3Rn/2n1N1rQ b - - 0 1 illegal: Other
1N1R1kq1/1BpP3r/Q1KNq1b1/2P3nB/3Nn3/2Qp1bn1/rb2rb2/b4R2 b - - 0 1 illegal: No possible last move, all moves rejected
2Q1n1kb/1Q2RNr1/nb2b3/bq1B4/PN1Ppr2/b2B1nBp/b4R2/K1b5 b - - 0 1 illegal: No proof kernel
3K2nb/1R2R2p/B1Pn4/1bN3B1/1n1Nr1Pq/n2n4/1p1n1n2/1krQbQN1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Ke6 g4 Kd5 a4 Kc4 c3 e5 a5 d5 a6 b5 a7 h3 f5 h2 f6 b3 f7 e3 Kf3+ e2 Ra2 b4 Bf4 d3 Bh6 e1N+ Ke3 b2 Bg5 e4 Kf4 b3 Ke5 d4 Ra1 e3 Qd2 e2 Qc1 d2 Qd1 Kd3 c4 Bg7+ Bf6 Na6 f8Q Nc2 c5 Na3 c6 Nb4 Ra2 Ba6 Ke6 Bb5 Qc1 d1N Bh3 e1B Qf4 Kc2 Qe4+ d3 Qf3 d2 Bg2 Nc3 Bg5 d1N Bf1 Nf2 Nd2 Nfd3 Ne4 Kb1 Nc5 Ne4 Q8f7 Qf6+ Kd7 Nd6 Be2 Re8 a8N Re4 Nc7 Rc4 Bf1 Rc1 Qd1 Qh6 Kd8 Qh4 N7e6 Bgc3 Ne2 Bd4 Rg1 h1N Rg2 Bdc3 N6d4 Nhf2 Ng1 Nh1 Qg6 Nh6+ Kc7 Bc4 Nc2 Nab5+ Kd7 Ne5+ Ke7 Re8+ Kf6 Ng8+ Kg7 Re6 Ra8 Na3 Qf7 Ka2 Qdf3 b1N Kf8 b2 Qd1 Ned3 Ra7 Ne5 Re2 Nd2 Rb7 Kb1 Re3 Ba6 Bc4 Bd4 Qf1 Ned3 Bb5 Bf6 Nd4 Bh8 Re2 Nhf2 Re4 Rh6 Ree7 Re6 Bc4 Re4 Bb5 Nf7 Ke8 Nd6+ Kd8 Re3 Ba4 Bc4 Bb5 Re4 Ba6 Bb5 Re8 Rf4 Re6 Re4 Ree7
1bB5/3p1qNR/2n1Q1P1/2Qb3K/1R1bnp2/2rN3n/nB3nPn/Q2kr1n1 b - - 0 1 illegal: Other
Q5qN/p1b5/1nr2B1Q/1rRnrr2/1pP1r2r/rbk2P1R/6n1/QK2N2B b - - 0 1 illegal: No proof kernel
kBnqB1Rn/6qQ/8/r1p3bP/1p4Qb/3RnNq1/1PNK1bb1/4rr1B b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 d5 a4 dxc4 a5 h5 a6 hxg4 Na3 Nxa6 Nb1 Nb4 Qc2 Na2 Qb3 Nf6 Qd1 Ng8 d4 Kd7 e4 Kc6 h4 b5 e5 Kb7 e6 c5 h5 a5 d5 f5 e7 g5 e8B f3 d6 a4 d7 f2+ Kd2 a3 Bf7 g3 Ne2 c3+ Kd3 c2 Be6 g4 Rg1 f4 Bb3 b4 Nec3 g2 Be2 f1N Nd2 f3 Ndb1 f2 Nb5 g3 Be3 c1B Qc2 Be7 Bd1 Nh6 Bd4 Bh4 N1c3 Nf7 Be2 Bcg5 Bf6 Ra5 Qb1 Ka8 Qc1 Re8 Ne4 Nc3 Nd4 a2 Ba4 Bb7 Qc2 Nb5 Nd2 Nh8 N2f3 Nd6 Be5 Ne3 Rad1 f1R Kd2 a1Q Qh7 Nc8 Nc2 Qa3 Bb8 Qb3 Ba6 Qg8 Bd3 Qg7 Bg6 Re5 Bc6 Re7 Be8 Re6 Rh1 g1Q Rh2 Re5 Rg2 Qh2 Bd5 Qh3 Rg1 g2 Bc6 Qg3 Be4 Qb6 d8Q Re7 Qd4 Qd8 Bd5 Bc6 Qg4 Re5 Rh1 g1B Rh2 Bf2 Rg2 Qd6 Ke2 Qd8 Rd3 Re1+ Kd2 Rf5 Rg1 Bb7 Nfd4 Rf4 Bh1 Bg2 Nf3 Rc4 Ncd4 Rcc1 Nc2 Rf1 Bf4 Rca1 Bb8 Rae1 Qh3 Qf8 Bc7 Bf6 Ncd4 Qg4 Ng5 Bb7 Bb8 Qf7 Rg3 Bg2 Nc2 Qf3 Rg4 Qg3 Nf3 Qfe7 Rg6 Bfg5 Rg8 Qg7 Qg4
1BBrQRkb/2N3r1/KbnN4/prp1q2N/6b1/1P2qR1n/1nq1P2Q/2r5 b - - 0 1 illegal: No possible last move
5Bnb/1q2r2P/3R1N2/r1p1BQ1q/k1bP4/1Q1p1b1N/B1RK2n1/q1r1n2b b - - 0 1 illegal: No proof kernel
1R4nQ/N1K4p/1P1nR3/qP1bQ3/bB1b1qp1/2n1N1b1/Br2Qr1k/3q2r1 b - - 0 1 illegal: Other
q3bB1R/n1B3pq/q4r1Q/2r1Qr1P/1n1bp2n/4P2k/3KbbB1/R1N1N3 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bc1 fxg6 Qd2 g5 Qf4 g4 Qg3 hxg3 h4 Kf7 a4 Kg6 c4 Kh5 f4 b5 a5 d5 f5 e5 e3 b3 c5 d3 c6 b4 f6 g2 f7 b2 a6 b3 a7 d4 c7 g3 Ne2 Kg4 h5 g1B Ra4 d2+ Kd1 g2 Nbc3 b1Q Ng3 b2 Ra5 Qa1 Nf5 b1Q Nd5 Nf6 Nh4 Bf2 Nc3 g1N Ng6 Rh6 Bb5 Bd7 c8Q Nc6 Ne2 Nf3 Ngf4 Nd5 Qc7 Bc5 f8B Rf6 Nc3 Ndb4 Nce2 Nh4 Bc4 Qh7 Bf7 Be8 Bd5 Rc8 a8Q Na7 Bg2 e4 Nd3 Qd6 Re1 Qa6 Qe5 Bb6 Rg1 Rc5 Qc6 Qa2 Re1 Qd5 Qcd6 Qa8 Bb2 Rf5 Nec1 Rf6 Ke2 d1R Rh1 Rf1 Kd2 Rf5 Ne1 d3 Qh6 Rf6 Kd1 d2 Rb5 Rf5 Ke2 d1B+ Kd2 Be2 Bc3 Bd8 Rb8 Bf6 Bd4 Ra5 Bb6 Rc5 Qe6 Bd4 Bc7 Bg3 Qd5 Rf6 Rg1 R1f5 Qe5 Bf2 Bfd6 Bf7 Rh8 Be8 Bf8 Qd6 Nc2 Ba1+ Nd3 Bd4 Ra1 Qe6 Nc1 Qa6 Bf3+ Kh3 Ne1 Bc4 Bh1 Be2 Bg2+
r1r4n/Nn1N2p1/1Pq1k1Q1/q1R1PbBR/1r1b4/1prN4/1K2b3/1B2Qn1q b - - 0 1 illegal: No proof kernel
qknrr1n1/bNN1P3/b1q3bq/Kp1B4/2RB1RQ1/P3N3/pn4rb/4Q3 b - - 0 1 illegal: No proof kernel
3r3R/B1NPQ1k1/2r3B1/1K1n1R1b/1nQ5/1bNBqp1p/nbq3rP/2rq4 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Ke2 f5 a4 Kf7 g4 b5 d4 c5 d5 e5 d6 h5 a5 c2 g5 c4 a6 h4 g6+ Kg7 a7 h3 Bb2 c1N+ Kd2 e3+ Kc3 e2 Kb4 e1Q+ Kc5 c3 Qd4 b4 Be2 c2 Qd3 f3 Qe3 f2 Ba6 f1B Bc3 b3 Ra4 b2 Bc4 f4 Ra5 f3 Qf4 Na6+ Kb5 Na2 Qg3 c1R Qg2 Ne7 Qf2 Rh6 Bd4 Bg4 Nc3 Nd5 Nge2 Bh5 Qe3 N6b4 Nf4 b1Q Rg1 Qc2 Bd3 Qed2 Bc5 e4 d7 Qe8 Qe2 Rd8 a8B e3 Ba7 Qdd1 Rg4 Be7 Rh4 Bf6 Qe1 e2 Ne6+ Kg8 Nc7 Qe3 g7 Be5 Be4 Rc6 Bd3 Kf7 g8Q+ Kf6 Qd2 e1R Qe2 Bd4 Qe6+ Kg7 Bg6 Be5 Qc4 Re2 Bd3 Rg2 Qe7+ Bf7 Rh8 Bd4 Ne4 Bb2 Nc3 Be2 Bg6 Bd3 Bb7 Bf5 Bc8 Bg4 Ba6 Bh5 Qb3 Rf8 Ka4 Nf4 Rf5 Ra8 Bd3 Rd8 Qe8 Bd5 Kb5 Be6 Qd5 Bg8 Qc5 Bb3 Qc4 Nfd5 Qe7+
1Nq2R2/pq3P1p/kn3bQ1/N5nr/qb2nK2/3br1NQ/P2B2b1/4BRr1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxe4 h5 bxc4 h6 f5 Be2 f4 Qc2 f3 Kd1 gxh6 Qb3 fxe2+ Kc2 h5 Kc3 h4 Qd1 Bb7 Kc2 Bc8 g4 Kd7 f4 Kc6 d4 Kb7 Kd2 e1R b4 c5 b5 e5 b6 e3+ Kc3 e2 Kd2 e4 Ke3 c3 g5 c4 g6 c2 f5 h3 g7 h2 f6 c3 f7 Ka6 b7 Qh4 d5 Nf6 g8N Bf5 d6 Be7 Nh6 Rg8 d7 Rg5 d8Q Nbd7 b8B Nb6 Qf8 Rh5 Bd2 c1Q Ng4 c2 Nf3 Rg1 Nh6 e1B Na3 Qb1 Qg7 c1Q Qb3 Qc8 Bg3 Bd8 Nd4 Bg6 Ba5 Bb4 Be1 Qhg4 Nc4 Qgd1 Kf4 e3 Ne2 Bd3 Ng4 Ne4 Nge5 Bf6 Ng3 e2 Nc6 Qb2 Qa3 Qa4 Qg6 Rb8 Bd2 e1N Rb1 Nf3 Qc3 Nfg5 Be1 Rg2 Rf1 h1B Qb3 Rb7 Qc3 Re7 Nb8+ Kb5 Rd1 Rg1 Qb3 Bg2 Qa3 Be2 Rd8 Bd3 Rf8 Qbb3 Nb2 Qd5 Nc4 Qdb7 Qb3 Nc5 Bd2 Re3 Qa3 Nce4 Be1 Bbe7 Bad2 Bc5 Na5 Bb4 Nd7 Ka6 Qb3 Qa3 Qe6 Qb3 Qh3 Qa4 Nb8+
1rrk2r1/pq1qP3/3nn3/3RNQpP/4NrR1/3Q1R2/4bBB1/K1bnb2q b - - 0 1 illegal: No possible last move
5rB1/rbN5/1KRr2q1/B4kPr/2p1rpBQ/2br2P1/Nn1n2b1/QR3n2 b - - 0 1 illegal: Other
Nn2r1Br/1n3pB1/PQ2k1q1/R6b/1K2bb1n/1R2bb2/pB2PN2/2b2rQ1 b - - 0 1 illegal: No proof kernel
4Bb2/3RPb2/2rbk2p/rp6/1N1P1r2/1n1rNrn1/r1QNnQ2/BKR1q3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 a4 Kd7 e4 c5 g4 f5 d4 b5 Kd2 f3 Kc2 f2 g5 c3 e5 c4 g6 f4 g7 h6 a5 h3 a6 f3 a7 h2 Qd2 b3+ Kd1 b2 Kc2 Qe7 Qf4 Nc6 Ra5 Nf6 g8N Ne4 Ra6 Na5 Rf6 Ng3 Rg6 Nb3 Bg2 f1R Bd2 f2 Qf7 Ne2 Na3 b1R Bd5 Rbd1 Bc1 Rd3 e6+ Kd6 Kb1 c2+ Kb2 Qe8 Bc6 c3+ Ka2 Rh7 Bb2 c1B Nc2 Bf4 Ne3 c2 Rg7 c1R Nf3 Be5 Rhg1 h1N Ne7 Nhg3 N7d5 Rc2 Bd7 Rc6 Nd2 Bf4 Bc3 Ra1+ Kb2 f1R Nb4 Rf3 Rc1 Ra5 Kb1 Rh8 Rh7 Rg8 Qf5 Rg4 Ba1 Be5 Rg7 Rgf4 Qf7 Qe7 Be8 Qh4 Qf5 Qh1 Rc7 Qe1 e7 Be6 Qh7 Bf7 Rd7+ Ke6 Qe4 Rb8 a8Q Rd8 Qa7 Ra8 Qc5 Ra2 Qc2 R8a5 Qh7 Bd6 Qg7 Ne4 Qg1 N4g3 Qf2
1rnnQQ1q/B7/1P1b1N1n/nnrq4/2Q1b2p/1pRP4/R2Kn2k/nB1N4 b - - 0 1 illegal: No proof kernel
1nn1q3/3Qn2p/2b1Rb2/P2rbR2/bQ2P1kB/KQbN3N/2p1nn2/1B2r3 b - - 0 1 illegal: No proof kernel
1B1r2kn/1B4qp/N1KQnpb1/r2n2n1/R5BP/bb1P4/5b1R/1nbN2Q1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c3 axb4 f5 bxc3 f6 gxf6 Qe2 f5 Qd1 f4 Kf2 e5 a4 b5 h4 c5 g4 b4 a5 e3+ Kf3 e2 Ke4 e1B a6 f3 g5 f2 a7 c2 g6 f6 g7 Kf7 Qg4 b3 Bc4+ Be6 Qg3 f1B Qg5 b2 Nc3 b1N Nge2 Qc7 Qg2 Ne7 Nd4 Bd3+ Kf3 e4+ Ke3 Nbc6 Bb3 c4 Ra2 Ne5 Ra5 Bf2+ Kf4 e3 Ra4 e2 Ra2 e1N Ra4 Bg6 d3 Kg8 Qc6 Nf7+ Qd6 Nf3 Nd1 c3 Nb5 N3g5 Rh2 Rd8 Ba2 Bb3 a8B Qd7 Be3 c1B Nc7 c2 Bb7 Ra8 Bd2 Ra5 Na6 Qc7 Kg4 Nd5 Bf4 Bd2 Bg3 c1N Be5 Ne2 Bg3 Ne6 Kf3 Bc1 Bf4 Ng3 Be5 Nf5 Ke4 Qe7 Qc6 Qd7 Bb8 Bfa3 Qd6 Nfe7+ Kf3 Bh5+ Ke4 Ng6 Nb2 Qc7 Nd1 Bc2 Bc4 Bb3 Bb5 Qe7 Bd7 Nfg5+ Kf5 Kf7 Rf4 Nf3 Ke4 Nec7+ Qe5 Ne3 Rh3 Rd8 Rh2 Nh8 Bf5 Ne6 Qd6 Qf8 g8Q+ Ke8 Qg3 Kf7 Qg2 Qg7 Qg1 Kg8 Bg4 Nf8 Rh3 Ng5+ Kd4 Bg6 Rh2 Bc2 Re4 Nd5+ Kc4 Nfe6 Rf4 Ra4+ Kb5 Ra5+ Kc6 Bb3 Ra4
8/p1r1Pn1k/Bnbbn1bn/R1BbQ3/2P1b2N/1Q2r3/p2n2B1/1RqN2K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 d5 c4 h5 e4 f5 g4 Kf7 b4 Kg7 e5 a3 b5 a2 g5 h3 b6 d3 e6 h4 b7 h2 g6 d4 Qd2 f3 Qa5 d2 Ne2 d1N+ Ke1 h3 Qa3 f2+ Kd2 f4 Qf3 d3 Bg2 f1B Ke1 Na6 b8Q Nf2 Qe3 f3 Qb7+ Nc7 Qc6 Rh7 Ng1 Ne4 Nd2 f2+ Kd1 Ng5 Qe2 Bd6 Qc5 Nh6 Nb3 d2 Bb7 Ngf7 Ba3 Bd7 Rb1 Qg5 Nf3 Bc6 Qee3 Bd3 Ba6 f1N Nc1 Re8 Nh4 Bc2+ Ke2 d1N Qf5 Nc3+ Kf2 Na4 Nd3 Nd2 Bc5 Nb6 Nb2 B2e4 Rhd1 h1B Qb3 h2 Qe5+ Kg8 g7 Bg6 Rg1 Bhe4 Nd1 h1B Rg2 Bed5 Kg1 Qf4 Rg5 Bhe4 Bf2 Qe3 Rh5 Qc3 Bc5 Qc1 Rf5 Rc8 e7 Ne6 Rg5 Rh8 Rh5 Kh7 Rg5 Rhf8 Rf5 Nfd8 Rg5 Rf3 Rh5 Re3 Rf5 Ng4 Rg5 Rc7 g8B+ Kh6 Bf7 Kh7 Be8 Nh6 Bd7 Nd4 Bh3 N4e6 Bg2 Ndf7 Rf5 Nfg5 Rf8 Ngf7 Rb8 Nd7 Rb5 Nb6 Ra5
4B1nb/1N2Brb1/KR2nn2/1r3Q2/k4nbN/1P1nP2p/2qp3R/2rNQ1r1 b - - 0 1 illegal: No possible last move, all moves rejected
qb2Q1R1/bbrB4/bB1r2n1/2rp4/2R1p2r/P1nnN2k/1QQ1P3/4b1KN b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bc1 fxg6 Qd2 g5 Qf4 g4 Qg3 hxg3 c4 Kf7 f4 Kg6 h4 Kf5 c5 g5 c6 e5 h5 b5 h6 g2 Kf2 b3 a3 b2 h7 g3+ Kf3 b4 c7 b3 Ra2 d3 Rh4 e4+ Ke3 d2 Rh6 Kg4 f5 d1R f6 Bb7 c8Q Na6 f7 Bb4 f8Q Be1 Nd2 b1B Rh3 b2 Qcc5 Bd3 Qfe7 b1N Qa7 Rc8 Nc4 Rc7 Qec5 Nc3 Qab6 Nb4 Qf8 Qa8 Qg6 Ne7 Qgf6 Ng6 Rc2 d5 Bd2 Rc1 Qc5 Rd8 Rh2 Rd6 Nh3 g1R h8Q g2 Qe8 Rh1 Nf2+ Kg3 Rh6 g1B Bh3 Bh2 Bd7 g4 Rh8 Kg2 Rg8 g3 Na5 Bb5 Nc4 Nd3 Qc6 B5a6 Qh8 Rf1 Nh1 Rf4 Qg7 Rh4 Qa4 Nb1 Ba5 Nc3 Bb6 Rc5 Ne5 Rc7 Ng4 Kh3 Qc4 g2 Qc6 Nb1 Qb2 Be5 Rc4 Rc3 Ra4 Rc5 Rc4 Nc3 Qa4 B1g3 Qac2 g1B+ Kd2 Nf2 Ke1 Nd3+ Kf1 Be1 Ne3+ Re6 Ng2 R5c6 Bc8 Rf7+ Bf2 Bb8 Qcb1 Re7 Q1c2 Rec7 Ba7 Bb6 Bd7 Rc5 Ne3 Ra5 Bc6 Rd6 Kg1 Bc5 Bb6 Rb5 Ba5 Bca7 Bb6 Rc5 Bd7+
4Q3/rN6/5Q1K/P2kP1nB/n2rpb1R/b1Npbr1b/1q3R2/r2r1nBN b - - 0 1 illegal: No proof kernel
1nb1K1n1/2r2rQ1/r2N1QP1/r1q4N/2p3P1/1rR1N2k/3Bp1B1/q1b1Rrq1 b - - 0 1 illegal: Other
4R2b/rr1Bbk2/2KN1P1B/1n3bb1/2b5/q1np1rpR/1P2N3/Q1R2rnQ b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 g5 c4 e5 h4 d5 f4 a5 f5 g3 c5 g2 h5 a3 h6 a4 h7 d3+ Ke3 a2 c6 d2 c7 g4 Rh3 a3 Ne2 g1N Qe1 d1B Qh4 d4+ Kd2 d3 Kc3 e3 Kc4 g3 Kb5 e4 Qh6 Na6 Qh4 Nf6 Qf4 Nd5 Qh4 Ra7 Kc6 Qe7 Qf4 Nc3 Qd6 Rb7 Bd2 Kf7 Qd4 Bb3 Qe5 Bc4 Nd4 e2 Rh4 e1B Nf3 e3 Bh3 e2 Bc1 Bd2 Rh5 e1B Qa5 Bg5 Nh4 Qb4 Bg4 Bfe7 Bd2 Re8 h8Q Rf8 Bh3 B8e6 c8R Nc7 Re8 N7b5 Be3 Bd2 Qa4 Bgf6 Bh6 Bdg5 Qd1 Nf3 Qh1 Ng1 Bg4 Bd4 Qe5 Bc8 Qe1 Bh8 Bh3 Nd1 Nc3 B8e6 Na4 Ndc3 Rc1 a1R Qf1 a2 f6 Bf5 Qd1 Qa3 Bg4 Rb1 Qf1 a1R Qd1 Bg6 Bd7 Bf5 Qe1 Rg8 Qf1 Rg7 Qe1 Ne4 Nc3 Ra7 Ne2 Nec3 Rc2 Rd1 Rc1 Rd2 Qd1 Rb1 Qa4 Rd1 Qa5 Rf1 Qa6 Rf3 Qa4 Qb3 Qa2 Qa3 Qa1 Bg6 Nf5 Rb7 Rc2 Rbf1 Rc1 Bh7 Ne3 Bf5 Rh3 Bce6 Nc4 Ra7 Na5 Bc4 Nb7 Bd8 Qh2 Kg6 Nd6 Re7 Bc8 Reb7 Bd7 Be7 Nc8 Kf7 Qg2 Bb4 Qh1 Be7 Nd6+
1brnQ1n1/2N3Q1/1nR2p2/3r2qN/n4P2/k1prbK2/Br2P1R1/1bBr1Q2 b - - 0 1 legal: proof: d4 e5 h4 exd4 c4 g5 b4 gxh4 b5 a6 Nh3 axb5 Ng1 bxc4 Be3 c3 Bd2 Bg7 Bc1 Bf8 a4 Ke7 g4 Kd6 f4 Kc5 Kf2 Kb4 a5 h5 g5 b5 a6 c5 a7 d5 g6 c4 g7 d3 Bh3 c2 Rh2 c3 Kg2 d4 Na3 d2 Nc4 d3 Bd7 h3+ Kf2 h4 Be8 Bf5 Nd6 Qg5 Bc6 f6 Nf3 Rh5 Bb7 Nc6 Qe1 d1R Ne4 d2 Ne5 Rc8 a8Q Nd8 Bb2 c1B Rh1 h2 Ra6 h3 Rf1 h1R Ba1 h2 Ke3 Bd6 Nc4 Bb8 Na5 Ka3 Rc6 b4 Rg1 b3 Ba6 b2 Qf1 b1N Nb3 Rh3+ Kf2 Rd3 Rg2 Rg1 Nbc5 h1R Ne6 Rh5 Bb2+ Kb4 Qa7 Re1 Nf8 Qh6 Ne6 Rd6 Qd7 d1N+ Kg3 Nd2 Qc7 Nc4 Ba1 Be3 Qf2 Ne7 g8Q Ka3 Bb5 Nb6 Kf3 Nb2 Bc4 Rb1 Ba2 Rgd1 Qe8 N2a4 Ng3 Ng8 Qf1 Rb4 Qg7 Bb1 Nc7 R6d3 Qef8 Re5 Nh5 Red5 Qff7 Qg5 Qe8 Rb3 Bb2+ Kb4 Bc1 Rb2 Qe4+ Ka3 Qe8
4nK2/k5Qr/1Nn1Rp2/1pr3Rb/1BqBn3/1nbNr2P/b1BrQ2P/n7 b - - 0 1 illegal: Other
1Kn3rN/5R2/q1BnP2p/1Q2Bnn1/5q1N/2P2r1R/2bp2b1/NknnQ1b1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kf3 Ke5 g4 f5 a4 b5 e4 b3 g5 h3 a5 b4 c3 h2 a6 h6 a7 b2 g6 b3 g7 d3 Ra5 d2 Na3 b1B Bb5 b2 Bd7 Bc5 Qe1 d1N Nb5 d4 Nh3 d3 Qf2 d2 Qf1 Qf8 Ra1 Nc6 Ng1 Nge7 g8N Bc2 Qe1 b1N Ra5 Bb7 Qf2 Nc8 Be8 Nd4+ Kg2 f3+ Kg3 f4+ Kg4 Na3 Qh4 f2 Bc6 f1Q Ne7 f3 Qe1 Nb3 Nd4 Nc4 Ba3 Nc1 Nb3 f2 Na1 N4d6 Rb5 Rb8 a8Q Qd3 Qa7 f1N Qa6 Ng3 Rb2 Qf6 Qb5 Ngf5 Rb3 Rf8 Nf3+ Ke6 Kf4 Bg1 e5 Qf7 Qb4 Qa6 Qb5 Rg8 Nh4 Qf8 Be8 Bg2 Neg6 Rb7 Rb2 Rf7 Nh8 Rf6 Bc5 Kd5 e6 Qf7 Qb6 Kc4 Ke5 Kd3 Bc6 Qc7 Qa5 Rff8 Rb7 Qb8 Rf7 Qb4 Kf6 Qf4 Qb5+ Qc4 Ke5 Nd4 Qb1 N6b5 Nf5 Nf3+ Kf6 Ng5 Ke5 Qh4 Rh7 Kc4 Bd4 Qg4 Ne7 Rf3 Rf7 Qh4 Nf5 Qg3+ Kf6 Qf4 Be5 Nbd6 Qb8 Nb6 Ke7 Nbc8+ Kd7 Kd3 Kc7 Bb1 Nb3 Kc2 Qb4 Kb2 Qa5 Bc2 Qb5 Kb1 Nh4 Ba7 Rg1 h1N Rf1 Bd4 Kb8 Ng3 Rh1 Ngf5 Rh3 Bg1 Na1+
K1b1n2r/B1B2Qn1/Q2Pr1pp/2b5/krR1Bbr1/2b1RP2/q1N2bn1/3N4 b - - 0 1 illegal: No proof kernel
4br2/N1K1nbr1/2PB1nkq/Np4R1/bPBb1b2/6QR/bB1n1qp1/4Q3 b - - 0 1 illegal: No possible last move
1qrbb3/2n4n/1Bpb1k2/b1N2n2/1Q2Kp1q/PR1r1QN1/2P2R1b/B1Nb4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 Kf2 b5 d4 e5 h4 Ke7 d5 f5 h5 g3+ Ke2 f3+ Ke3 g2 a3 f2 g6 f1N+ Ke2 c6 g7 b3 h6 b2 d6+ Kf6 h7 f4 d7 e3 Kd3 e2 Rh2 e1B Nf3 g1B Rg2 e4+ Ke2 b4 Nc3 b1B Qd3 b3 Rh2 e3 Qa6 b2 Kd3 e2 Rh4 Ng3 Rh2 Bd6 Na2 Ba5 Ne1 Nf5 Qc4 Na6 Be3 Nc7 Rf2 Bh2 Nc1 Ba2 Ke4 b1Q Ned3 e1B Qb4 Bf7 Bb6 Be8 Nc5 Ba6 Ra2 Rc8 Rb2 Be2 Rb3 Bd1 N5d3 Kg6 Nc5 Qh4 d8Q Bc3 Qe7 Bf6 Qe6 Qb2 Qd5 Bd8 Qd3 Kf6 Qg3 Ngh6 Qf3 Rg8 h8B Ng4 Qg3 Rf8 Qg2 Rf7 Qf3 Rd7 g8N+ Kg5 Kd3 Nf6 Nh6 Nh7 Bd4 Qb1 Ba1 Qb2 Ke4 Kf6 N5d3 Bf8 Nc5 Rd3 Qg3 Bd6 Qf3 Nd4 Nf5 Qb1 Qh1 Qb2 Ng3 Nf5 Qf1 Ra8 Qe2 Rf3 Qbb5 Bd2 Ba7 Rd3 Rc3 Rc8 Qf3 Qb4+ Qc4 Qb7 Bb6 Qb8 Rb3+ Bc3 Rb2 Ba5 Qb4 Kf7 Rb3 Kg6 Rc3 Kf6 Rb3+
K5b1/1B1r2r1/NP1B2p1/k1N1np1R/bb2r3/1b3bq1/1n4PR/bQq3BQ b - - 0 1 illegal: No proof kernel
nkr2B2/4Nrb1/p1b1R1K1/1QbP2p1/B1P1rNr1/4n1nn/1Q1Q3R/1q1r4 b - - 0 1 illegal: No possible last move
b2Q1b1K/q3B2P/1rNpn3/3RR1pb/P1n2n1r/kB2rN2/3Q3n/Rnr5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 f5 a4 b5 h5 g5 e5 b3 h6 Kb4 e6 f3 Kg3 d3 c5 f4+ Kf2 d6 c6 g3+ Ke1 f2+ Kd2 f3 Ke3 d2 Kd4 b2 c7 g2 e7 Na6 e8R Nf6 Qe1 Bb7 c8Q Nh5 Qe4 d1B Na3 b1N Qec2 Qc7 Be2 f1N Re6 f2 Qd8 Nh2 Bc4 f1N Be3 Nc5 Nf3 g1R Ba2 Nfd2 Nc4 Nf4 Na5 Ka3 Re5 b4 Nc6 Nc4 Qd2 Nce6+ Ke4 b3 Kf5 b2 Kf6 Rg3 Rd5 Rc8 Bd4 Ba8 Re1 Qa7 Ree5 Rb8 Bb6 Rh3 Bc7 Rb6 Kf7 Rh7+ Kg8 Re7 h7 Rh4 Kh8 Be2 Ne1 Bh5 Nf3 Nc3 Qb8 b1R Bd8 Rc1 Qc8 Re8 Be7 Nb1 Qc7 Reb8 Qd7 Rb3 Qc8 Re3 Qd8 Rb6 Bb3+
N2Bn2q/6P1/1qQ1R1Bn/4q1r1/bp5K/2q3p1/qBkbbQP1/R2rq1N1 b - - 0 1 illegal: Other
2nNb1Bn/1K2Rp1q/2R1r2r/r7/R3npn1/1PQ2P2/b1Bn2N1/1kb1Q2r b - - 0 1 legal: proof: d4 b5 h4 c5 a4 bxa4 h5 cxd4 h6 e5 Bf4 exf4 Nf3 gxh6 Ng1 h5 Ra3 h4 Ra2 Bb7 Ra1 Bc8 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kd3 Kf5 c4 h5 g3 a5 c5 a3 e3 a2 c6 a4 c7 h3 Ne2 h2 Qb3 h4 Qc4 h3 Nd2 a3 Qc1 Nc6 Nc3 Bd7 c8B Qh4 Na4 Ra5 Nc3 Nge7 Nf3 Rh6 Rg1 h1R Nb5 h2 Qe1 Ng6 Be2 Na7 Nc7 Nh8 Ne6 Be8 Bd1 Ra6 Bb7 Nc8 Nd8 Rae6 Ba8 Qh5 Nh4+ Ke5 Rc1 a1N f3 a2 e4 Ba3 g4 Nb3 g5 a1R g6 Nd2 g7 Qg6 g8Q Qh7 Rc6 Ra2 Kc2 d3+ Kc3 Ra1 b3 Bc1 Kb4 Kd4 e5 Ra5 Qeg3 Ke3 Q8g7 d4 Q3g4 Nc4 Qg3 d2 Ng2+ Kd3 Be2+ Kc2 Bd1+ Kb1 Qe1 d3 Bb7 Ref6 e6 Rfg6 e7 Re6 Be2 d1N Qgc3 Nde3 Bd1 d2 Rf1 Bd7 e8R Ng4 Re7 Be8 Rf2 Rg1 Re2 h1N Re4 Ng3 Ba6 Rgh1 Bb5 N4d6 Kc5 Nf1 Ra4 Ne4+ Kd5 Ra8 Bde2 d1B Bbd3+ Bc2 Bd1 Nef6+ Kc5 Nd2 Bg6 Nfe4+ Kb5 Ncd6+ Kb6 Nc8+ Kb7 Ra5 Rb4 Qg7 Bh7 Qg6 Bg8 Qh7 Rd7 Ka2 Re7 Bb1 Qc2+ Ka1 Ra4+ Ba2 Qc3+ Kb1 Bc2#
bn3N1q/1n1nqpn1/1P2R2k/b2r3N/4nR1r/n1BBp2Q/P3K3/1bQB4 b - - 0 1 illegal: No proof kernel
q2rr1nK/3P1R2/P1qr2pp/3k2Br/N1Q2b1q/1B3b1R/1r2rQQ1/5N1n b - - 0 1 illegal: No possible last move
kBb4b/b1PrNp1N/1rR2RQ1/8/qp1PB1rQ/6b1/2n1nBn1/2nK2b1 b - - 0 1 illegal: No proof kernel
N3n1rk/1P2r3/2p3Rb/1PN5/b2qp1n1/1nNr1nK1/R1B1r1n1/2b1BQQ1 b - - 0 1 illegal: Other
RQkb1Q2/1p1p4/1q1B3r/3b2BN/b1rr4/R5Kn/N2PQPn1/1rnrb3 b - - 0 1 illegal: Other
2brnR1Q/pQ6/1N2kRr1/1b1rbrn1/1P2PB1n/1q1pQ3/N1n1B3/5nK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 c4 d5 b4 h5 e4 f5 g4 h3 c5 a3 g5 d3 c6 a2 g6 h4 c7 f3 g7 d2 Qe1 d1R Ba6 h2 Bc4 h3 Qc3 f4 Qd2 d4 Bf1 Rh6 Qb2 Na6 Qb3 Nc5 Be2 Rg6 Qb2 Ne6 Bc4 Qd5 Bf1 Qb3 Bb5 Ng5 Qc3 Ke6 Qb2 Bd6 Qa3 Be5 Bb2 Nf6 Nc3 Ne8 Rc1 a1N Na4 Nc2 Ne2 Rd2 Rhg1 h1R Rgf1 h2 Nb6 Rg1 Ba1 Rf6 Bb2 Rf5 Ra1 Rd1 Nc3 Rg4 Be2 Rd2 Rfc1 h1N+ Kf1 f2 Na2 Rg2 Rcb1 Rg4 Bc1 Ng3+ Kg2 f1B+ Kg1 f3 g8Q+ Nf7 Qh8 Rg6 Rb2 Ng5 Rbb1 Rd1 Bf4 Rb8 Qc1 Ra8 Qe3 Rd2 Bd1 Bb5 Be2 Rb8 Rf1 f2+ Kh2 Rff6 Rae1 Nf5 Kh1 Nh4 Rc1 Bcd7 c8Q Rf5 Qb7 Rd8 Ra1 Bc8 Rac1 Na3 Rc7 Nc2 Rf7 Rd1 Re1 f1N Kg1 Rd3 Rb1 Rc3 Rf8 Rc5 Ra1 Rcd5 Rc1 Na1 Rc7 d3 Rcf7 Nc2 Rf6+
2R1r3/pKN3bP/P1BbB2Q/4b2k/1Q4Nr/4Rq1b/2Rrrn1p/1nr4n b - - 0 1 illegal: No proof kernel
5RNq/3q1r2/K2Q1qrr/BrQ4N/p5n1/2Qb4/P1Pn1Bpb/R2krq2 b - - 0 1 illegal: No possible last move
BR1q2r1/K1Nb2b1/2q4p/3N1q2/1Pk2p1N/nbbQQ2q/1P2rn2/4BqR1 b - - 0 1 illegal: Other
1B1qnnqQ/3bN1R1/1k2b2p/1Bb2Pr1/6r1/1QN3RP/1K1p1b1n/1b3Qn1 b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 f5 b4 fxg4 b5 a6 Nc3 axb5 Nb1 bxc4 Qa4 c3 Qb3 Ra4 Qd1 Ra8 f4 d5 e4 Kd7 a4 Kc6 a5 b5 f5 g5 e5 d3 h3 d2+ Ke2 h6 Kd3 c2 Kc3 b4+ Kb3 g3 e6 g2 e7 d4 e8Q+ Nd7 a6 d3 a7 g4 Qde2 d1B Qf2 g3 Ra3 Bc5 Be3 c1B+ Qc2 Kb6 Nc3 Nf8 Qa4 Bd7 Ne4 Nf6 Nd2 Rg8 Ngf3 g1N Ng5 g2 Nge4 Rg5 Ra1 Ne8 Nc3 Nf3 Rg1 Nh2 Ka2 b3+ Kb1 b2 Ka2 b1B+ Kb3 Ba3 Nf3 d2 Bf4 Bf2 Ne5 c5 Ng6 Bh5 Ne7 Bf7+ Qc4 Bfe6 Qd3 Bb4 Qcd5 c4+ Kb2 Bbc5 Ra3 Rb8 a8Q Rb7 Rh1 g1N Bb8 Rc7 Be2 Rc6 Ra7 Rd6 Qg2 Rd4 Qf1 Rh4 Nb5 Rhg4 Qb3 Ngf3 Rg1 c3+ Ka1 c2 Rg3 c1Q Nc3+ Rb4 Ba6 Ng1 Bb5 Rbg4 Rc7 Qe1 Kb2 Qd1 Qad5 Qe2 Qd4 Qe5 Ra7 Qg7 Qf6 Qf7 Qh8 Qg8 Nc6 Bc8 Rg7 Bcd7 Ne7
R2B4/1brQ4/3B2Pp/1nrnBRb1/N3K2P/1rq2p2/1q2N1nk/3r1Qnn b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 d5 Bd3 dxc4 Be2 g6 Bg4 fxe4 f5 Ra7 f6 Ra8 Bf5 gxf5 Kf2 Kf7 Ke3 Ke6 d4 c5 a4 b5 h4 c3 g4 c2 a5 h6 g5 b3 d5+ Ke5 f7 c4 d6 f4+ Ke2 b2 a6 b4 a7 c3 g6 b3 d7 e3 Kf3 e2 Bd2 c1R Rh2 e1N+ Kg4 f3 Rf2 c2 Be3 Rh7 Ra4 Ng2 Bc5 Nf6+ Kg3 Bb7 Ra2 Nc6 Ba3 Rc8 a8Q Nd5 Qa6 Nd4 Qc6 Qa5 d8B Qc3 Qa6 Nb5 Rf1 Rc5 Qd2 Rd1 Kf2 c1N Nh3 Ne2 Ba5 Ng1 Qa8 e6 Qc8 Be7 f8B Bg5 Qd3 Rhc7 Qc4 Kf5 Nf4 Kg4 Qe8 e5 Bg7 e4 Ne2 Kh3 Re1 Kh2 Qd7 e3+ Kf1 Qf6 Nbc3 b1R Na4 b2 Qd3 Qc3 Bf6 R7c6 Bad8 Rc7 Bg7 Ra1 Bgf6 b1Q Bh8 Qbb2 Be5+ Kh1 Bb4 Rab1 Ba3 Rc4 Bad6 R4c5 Nf4 e2+ Kf2 Kh2 Ra3 Rd2 Rc1 e1N+ Ne2+ Kh1 Kg3 Rd1 Qc4 Nd3 Kg4 Na7 Kf5 Nb5 Rc2 Nf2 Rd2 Ndf4 Rd5 Kh2 Ra1 Nh1 Ke4 Qba3 Qd3 Rb3 Qb1 Rd2 Qf1 Qab2 Nb6 Rd1 Ra8 Ra1 Na4 Rd1 Bh8 Bc8 Re5 Nd5 Bhf6 Bb7 Rf5+ Bf4 Ng3 Bc1 Bfe5 Bg5 Ne2+
qQ5K/bNb1r3/b1NPr1R1/3B1k1b/6n1/1NPrR1B1/nqbrpQp1/8 b - - 0 1 illegal: No proof kernel
q1r1Q1R1/n4Q1N/1Pqp3b/1r1R2P1/NBbb1n2/K4N1k/1pB1b1q1/1q5q b - - 0 1 illegal: No proof kernel
n1B4b/k5Nq/p1N3p1/1RP4P/1RqrbB2/K6Q/1Qq1n3/Q1brbbq1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 f5 e4 d5 c4 Kd7 Kc2 Kc6 h4 Kb6 b4 a3 Kb3 a6 h5 a2 c5+ Ka7 b5 g3 e5 g6 e6 g2 e7 d3 e8Q d2 Qf7+ Qc7 Qf6 f3 Qc2 d1Q Nd2 f4 Bb2 f2 Be5 d4 Qg7 d3 Ne4 d2 Rc1 a1B Be2 f1Q Qf7 f3 Qf4 f2 Ka2 Ne7 Ng3 Nbc6 Rb1 Bf5 Qf3 Nd5 Kb3 Rd8 Rh4 Nd4+ Ka3 Qh7 Qcb3 Nb6 Qc4 Bh6 Qc1 Qc2 Rf4 Bd3 Nf5 d1Q Qh3 Na8 Nf3 g1B Bd6 Rd7 Ne5 Rhd8 Bg4 Bh2 Bc7 Bg3 Rb3 Bc3 Qa1 Qde1 Re4 Bc1+ Rb2 Qee2 Rf4 Qg1 b6+ Kb7 Bb8 f1B Nc6 Bge1 Bd6 Qe6 Re4 Ne2 Bf4 Bh8 Ng7 Rd6 Ra4 Be4 Ra5 Kc8 b7+ Kc7 Ra4 Qec4 Bc8 Rd7 Ne5 Rd1 b8Q+ Kd8 Qbb3 Kc7 Ra5 R7d4 Rb5 Bb7 Qbc3 Kb8 Qb4 Ka7 Qbc3 Be3 R2b4 Be4 Qcb2 Bc1 Nc6+
1R4n1/1b3N1p/1n5B/2bkbB1Q/3qbp2/1PQNPnb1/n1rRK1Q1/1q4r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 f3 g4 Nf6 e3 Ke7 g5 Kd6 b3 a5 g6 d3 g7 h3 g8Q f2+ Kd2 h2 Qg5 a3 Qf5 a2 Qg5 a4 Qb5 a3 Nc3 Rg8 Bh3 f1N+ Ke1 d2+ Ke2 Bb7 Qe1 d1Q+ Kf2 Nd2 Bg2 Nf3 Rb1 a1B Qf5 a2 c5+ Kc6 Qc2 d5 Nce2 d4 Bd2 d3 Bh3 Nbd7 Nf4 Rc8 Qf1 Ng5 Nf3 Nb6 Ba5 d2 Rg1 h1B Rb2 Qb1 Qf5 d1N+ Ke2 Qd7 Nd3 Nc3+ Kf2 Qd5 Rd2 Qe4 Nfe5+ Kd5 c6 Qa4 c7 Be4 Qe2 Nf3 Rc1 Rg1 Bb4 Ng8 Qh5 f5 Nf7 Bb2 Be7 a1B Bg5 Na2 Bh6 Bf6 Qf1 Bae5 Ke2 f4 Bf5 Qd4 Qg2 Bh4 Rcc2 Bg3 Rc6 Ra8 c8Q Bb4 Qc7 Rc8 Re6 Bf8 Re8 Ba3 Qc1 Rc5 Qb2 Rc2 Qc3 Bc5 Rb8
R2n2q1/2N1q1pP/4P2q/2qN4/Q2bKnr1/r3p2r/Rr1Bb1Q1/1k1B1R1q b - - 0 1 illegal: No proof kernel
R3rNr1/4p3/2rQKB2/n1BR4/q2Nn3/Q3PnP1/rqbBpn1b/n2k4 b - - 0 1 legal: proof: h4 d5 c4 dxc4 b4 f5 h5 a5 e3 axb4 h6 f4 Be2 f3 Qb3 gxh6 Kd1 fxe2+ Kc2 h5 Kb2 h4 Qd1 Nd7 Kc2 Nb8 f4 Kd7 a4 Kd6 d4 Kd5 a5 Ke4 a6 b5 a7 h5 d5 c5 d6 h3 f5 b3+ Kc3 h4 f6 h2 d7 b2 f7 b4+ Kc2 c3 Kb3 h3 Kc4 c2 Nf3 b3 Rf1 h1R Rg1 h2 Ra5 Nc6 Ne5 Bg7 f8B Nf6 Nf7 Qe8 d8B Bf5 Bb6 Rg8 Bd2 c1N Na3 b1Q Bd8 b2 Ra4 Nb3 Qf1 Rc8 Kb5+ Kd3 a8Q c4 Ng5 c3 Qf3 c2 Bb4 c1R Bd6 Kd2 Qg3 Rc5+ Kb6 Bc2 Nb5 Ne4 Nh7 Be5 Bg7 Qa2 B8c7 b1N Bf6 Qb2 Nf8 Qd7 Rf1 Re8 Rf5 Re1 Qa6 h1N Nd4 Nhf2 Kb7 Bf4 Rd5 Kc1 Qd3 N1d2 Ra8 Nf3 Qa6 Kd2 Qa3 Ra1 Qh2 Rc4 Bb4+ Kd1 Bd2 Ra2 Qg3 Qd6 Bb6 Na1 Qh2 Qdb4 Qg3 Bh6 Kc7 Qa4 Kd7 Na5+ Ke6 Rc6+ Qgd6 Bf4 Bc5 Bh2 g3
8/1K1Npq2/1N2b1kq/4P1B1/1r2P1p1/bBrrrnr1/RQbQR3/1Qbn4 b - - 0 1 illegal: Other
bb1K4/1PpP2bk/q3r2Q/BBQp3Q/2r1Rq2/6rR/r5n1/N1Nnb2b b - - 0 1 illegal: No possible last move
1K6/pQ1kq1q1/1p1n1qBB/1b1Prbr1/1QB1b3/1P1R1N2/R2bq3/2nN1q2 b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 a5 d5 a6 dxc4 Qa4+ Nc6 Qd1 Nb4 Nc3 Nxa6 Nb1 Nb4 Qb3 Na2 Qc2 Bf5 Qd1 Bc8 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 f3 e4 f4 g4 c3 d4 c4 b3 b6 g5 c2 d5 c3 g6 h3 g7 f2 Ne2 f3 Ng3 h2 Ba3 c1Q Qe2 h4 Qc2 h3 Bc4 f1B Nh5 f2 Rg1 h1Q Bd3 h2 Rg5 Bf5 Bc4 Qf3 Qd2 h1B Ng3 c2 Ne2 Nh6 g8Q Kd7 Nec3 Qe2 Rg3 Qce1 Rd3 c1Q Nd1 Bb4 Qgg5 Ba5 Bf8 Rg8 Qb4 Bf3 Qe3 Rg5 Nd2 Qc3+ Qd4 B3g2 Nf3 Nc1 Bg7 Qf8 Ra2 Re8+ Qe7+ Kc8 Kd6 Nf7+ Kc6 Nd6 e5 Qf6 e6 Qa1 Qg4 Bd2 Bh6 Qg7 Qf7 Qaf6 e7 Bh1 Ng1 Be4 Nf3 Rh8 e8B Kd8 Bd7 Re8 Qh4 Re5 Be8 Qe3 Qb7 Q1e2 Qa6 Ke7 Kc7 Qc5+ Kb8 Kd8 Ka8 Qcc7 Bg6 Qce7 Kb8 Kd7 Qh2 B1h3 Qg1 f1Q Qc5 Bhg4 Qb4 Bh5 Bh7 Be8 Qb7+ Kd8 Qa8 Bb5 Bg6 Kd7 Qb7+
1qRq4/1n3bQr/K3BQ1B/7N/n2p4/P3nPbn/3RpNqN/1bq2r1k b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Kf6 c4 Ke5 g5 h5 g6 b5 c5 d5 c6 e3 Kd3 Kf4 g7 e5 f3 Kg3 c7 b3 Bd2 e2 Bb4 e1Q Qc2 b2 Nh3 Be6 c8N Rh7 Qc3 e4+ Kc2 e3 Kb3 e2 Be7 d3 Kb4 d4 Nf4 h3 Ng6 h2 Bg2 d2 Qc2 d1N+ Kc5 h4 Qc3 b4 Kb5 b3 Nb6 h3 Rf1 h1N Qc2 Kh2 Na3 b1B Bg5 b2 Nf4 Nhf2 Nbc4 Ne3 Nh5 Ne7 g8Q Qc1 Qcg6 N7d5 Rd1 Nd7 Nc2 Bd6 Nb4 Bg3 Rd2 Nc5 Nd3 Nb6 Q8g7 Nb7 Nce5 Bf7 Q6f6 Na4 Bh6 Ra7 Bf1 Kh1 Ng4 h2 a3 Nh3 Ra2 Ra8 Rc2 Rc8 Ka6 Rc3 Nb4 Rd3 Rc8 Rd1 Nd3 Bc2 Nc5 b1Q Ne4 Qb3 Rb2 Bb1 Rd2 Qb5+ Ka7 Qe5 Ka6 Qb8 Bg2+ Kg1 Nef2 h1Q Nh2 Rf1 Qh8 Ng5 Bh3 Qg2 Be6 Nh3 Nfg4 Kh1 Qg8 Nb2 Qgg7 Na4 Nf2+
q2nb3/1RQ2b2/3nN3/2N1q1BP/1k1p2n1/rb1B1Q1p/q1Pn1r1b/Q5RK b - - 0 1 illegal: No proof kernel
3r1QBN/3r1qn1/n2B1bQq/1kq1RP2/q2Rbp1N/3pP3/2b2Kb1/5nB1 b - - 0 1 illegal: No proof kernel
1rkn1K2/1Nr5/1q1Q1NbR/2rQPbPB/3r2bB/pnb5/1q1p4/RN4n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 h5 Kf3 f5 c4 d5 b4 Kd7 e4 a5 g4 a3 c5 a4 b5 d3 g5 a2 b6 d4 b7 a3 e5 d2 Qe1 d1B+ Qe2 d3 Rh2 h3 Nc3 h4 Rf2 d2 Nd5 h2 Ne3 h1N Nh3 Ra4 Nc4 Ne7 Rg2 Nf2 Rg1 Na6 b8Q Qb6 Nb2 Nc6 Qa8 Rd4 Rb1 a1Q Rg3 Nd8 Na4 Qab2 c6+ Kc7 Nc3 Bb4 Rg1 Nc5 Rh1 Nb3 Ra1 Re8 Nb1 Bc3 Bg2 Be6 Qa5 Kc8 c7 Bf7 Rh2 Bg6 Qd5 Bc2 Qd3 Rg8 Ng1 h3 Ne2 Rh8 Rh1 h2 Ng3 Nh3 Ne4 Rf8 Nf6 Ng1+ Kf2 f3 Ke3 f2 Bf3 f1B Bh5 Bh3 Qd6 Rd5+ Kf4 Bg4 Qd4 Rc5 Q4d5 Qa2 Bb2 Rh8 Kg3 f4+ Kh4 f3 Qe7 f2 Qed6 Bb4 Bd4 f1R Bf2 Rc1 Be1 Bc3 Bg3 Nc6 Be1 Qb2 Bg3 Kb7 c8N Bcf5 Q6e6 Bh3 Nd6+ Kc7 Be1 Bb4 Nb7 Rb8 Bd1 R5c2 Ng4 Nd8 Qed6+ Kc8 Nf6 Rc7 Bf2 R1c5 Bg4 Bh7 Kh5 Bc3 Kh6 Bg6 Be1 R7c6 Kg7 Rc7+ Kf8 Ne2 Rg1 h1R Rg2 Ng1 Bd1 Rh2 Rg4 Rg2 Rh4 Rg4 Rh6 Rd4 Bh5 Bhg4 Bh4
n1b3K1/4rB1r/qQ1rnQ2/2PN1n2/1p1nP1k1/1N1q1p2/RB6/R1b1N1rb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 e4 h5 c4 b5 g4 h3 a4 h2 c5 d3 a5 h4 a6 b3 a7 b4 Nc3 d2 Ra6 b2 Rh6 b1R Re6 h3 Re8 f3 Re7 f2 Qb3 f4 Nce2 d1N Qd3 Nf6+ Kd6 Nh5 Bg2 f1Q Qa6 Ng7 Bd2 Rh7 Qa4 Na6 Nd4 Nc3 Qc6 Ne2 Be1 Nc7 Bf3 Nge6 Qb6 Bh6 Nb3 N2d4 Bc3 Qa6 Bb2 Rb8 a8N Rb7 Ke5 d5 Rd7 Kh4 g5 Re7 Kf6 Rd1 Bg2 Kg4 Nf3 Rg1 Ne1 f3 g6 Bc1 Bf1 Rh7+ Re7 Qd6 g7 Qd3 Qa7 Q6a6 Nb6 Na8 Kf7 Rc7 Kg8 Rd7 Re8 Re7 Rd8 Rg3 Rg1 h1B Rg2 h2 Rc2 Rg1 Rd7 Qd2 Bc4 Qd3 Rb7 Bg2 Qb8 h1N Ra7 Ng3 Qe5 Ngf5 Qf6 Bh1 Rh2 Nc6 Rf2 d4 Nd5 Qb1 Rd2 d3 Rf2 d2 Rh2 Qb5 Ra1 d1R Nb6 Nh4 Be5 Bb2 Qf7 Bc1 Rha2 Ng5 Kf8 Nb8 g8Q Nf5 Qgg6 Nc6 Kg8 Qa6 Bb2 Rd8+ Qf8 Ncd4 Qd6 Rdd7 Qff6 Qd3 Bf7 Nge6 Qc6 Rd6 Nd5 Ng5 Qb5 Nge6 Qb6
b1r1k2q/2Q5/1rR2QN1/q1p1b2r/pbq5/B2r4/P1B1K1PR/3nBNbn b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 d4 gxh4 c5 b6 Bf4 bxc5 Bh6 cxd4 Bc1 d3 b4 e5 f4 c5 f5 d5 b5 h5 b6 a5 f6 h3 b7 d2+ Kf2 e3+ Ke2 h4 Qb3 d1R Qd3 a4 Qc4 d4 Qc2 e4 Qc3 h2 Qe1 h3 Qc3 Rh5 Qa5 Bg7 Qb4 Rd3 Na3 Ne7 Qb2 Nd5 Nc2 Qa5 Qc3 Nc6 b8B Bb7 Bd2 Nce7 Bg3 Rc8 Bf4 Ba8 Nb4 Nf5 Nf3 Ng3+ Ke1 e2 Qc1 Nc3 Bg5 Nd1 Qc2 Rb3 Bge3 d3 Nd5 Rb6 Rb1 Bh8 Ne5 Bg7 Rg1 h1Q Ng6 h2 Bf2 Bh8 Ne3 Bg7 Bb4 Bh8 Kd2 e1B+ Kc1 Bc3 Be1 Bd4 Ba3 Bg7 Qb3 d2+ Kc2 Be5 Bd3 Bd4 Nf1 e3 Be4 e2 Kd3 Be5 Rb2 Bh6 Qd5 Be3 Qd6 Bf2 Qc7 Be3 Bf2 e1B Bf5 Ne4 Bh4 Nef2+ Ke2 B3d4 Bc2 Be3 Ng3 B3d4 Rf1 Qg1 Rb3 h1Q Rd3 Be3 Rd6 Qh3 Rc6 Nh1 Rf4 Qgh2 Rg4 Bg1 Nf1 Qf4 Bf2 Qhc3 Rh4 Qh6 Rh2 Qh8 Bh4 Qc4+ Bd3 Nb2 Bg3 d1R Bh4 Qf4 Bc2 Bb4 Be1 Qh4 Qb8 Rd3 f7+ Kd8 Qb7 Nd1 Qb8 Kd7 f8Q Qc4 Qf6 Ke8 Qc7
2rk4/4q3/3r4/1Pbn1pnR/bRBB2P1/qnQn1p1q/2rN1NN1/1KQq4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 h5 b4 f5 c4 d5 Kc2 a5 e4 h3 g4 f3 e5 h2 e6 d3+ Kb2 d4 e7 d2 c5 d3 c6 h4 c7 h3 Ka2 a3 Qc2 d1Q Nd2 a4 Be2 Bd7 c8N Nc6 Qb3 Nh6 Qc4 Nf7 Qa6 Ng5 Na7 Rc8 Ne4 d2 Kb1 a2+ Kb2 a3+ Kc3 Ne5+ Bc4 Rh6 Nf2 Nd3 Qc6 Rd6 Rb1 a1N Ne2 a2 Nb5 Nb3 Nbd4 a1Q+ Bb2 Qa3 Nf4 Qc7 Qc5 Ba4 b5 Qd8 Ng2 Kd7 Re1 h1Q Re6 h2 Rh6 Qhf1 Rh5 h1R Qb4 Kc7 e8Q Qe7 Qc6+ Kd8 Qbc5 Rh2 Ba1 Qde1 Kc2 d1N Qb4 Qh1 Qc3 Qhf1 Rb2 Qe1e2+ Kb1 Ne3+ Qc1 Nd5 Qc5 Qed1 Qb4 Na5 Nb3 Qh1 Nd2 Nb3 Qc3 Qhf1 Ne3 Qh3 Ng2 Bg7 Rh7 Bd4 Rh4 Bc5 Rh5 Na5 Rb4 Nb3 Qc2 Rh1 Be5 Re1 Qc3 Re2 Nde4 Ra2 Bd4 Rc2 Nd2
4Bn1q/2bbrbn1/4NnbQ/1pQP3k/nr1qNR2/8/Rp1PK3/Br3B2 b - - 0 1 illegal: Other
b3n2B/8/1Q1qBn2/P3BpKb/2Q1P1Rr/rbb3Nr/1pr4q/2NkR1n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 c4 g5 a4 f5 c5 d5 h5 b5 c6 g3+ Kf3 g4+ Ke2 g2 c7 d3+ Kf2 Kd4 h6 d2 h7 g3+ Kf3 b3 Na3 Kc3 Rh6 b2 Re6 b1R Re7 d4 Be2 b4 Nc4 b3 Ra2 b2 Bf1 d3 Nh3 g1N+ Kg2 f3+ Kh1 g2+ Kh2 f2 Kg3 Bb7 Kh4 Na6 c8Q Nc7 Nf4 Nf6 Qe1 Kc2 Rg7 d1B Nh3 d2 Kg5 Bh5 Nf4 d1B Nd3 Bb4 Nd2 Bc3 Ra1 Qd6 Qe3 Nce8 Qb6 Ra7 Qc4 Ba8 Be2 f1R a5 Rf4 Rg8 Rh4 Nf1 Rc7 Bf4 Rc6 Ng3 Rh3 Ra4 Ra1 Be5 Ra3 Nc1 Kd2 Bd3 Bb3 Bb1 Kd1 Ba2 Ne2 Rg7 g1Q Rg8 Qh2 Rg7 Rg8 h8B Ng1 Qf7 Bc2 Be6 Rc8 Qfc7 Bb3 Qc4 Rf8 Kh6 Rf7 Rg4 Rh7+ Kg5 Be1 Qca6 Rc2 Qc8 Bc3 Rd4+ Rd2 Qc4 Rh6 Rd3 Rh4 Re3 Rc2 Re2 Rh3 Bf7 Bg6 Bg8 R6h4 Be6 Bh5 Re1+
1BBQ3k/1q3Nr1/nnr2bpP/R1r4q/1P1Qn3/1rp4b/6Nb/KbR1B3 b - - 0 1 illegal: No possible last move
6K1/bQb1N3/1Rq1pq2/3nR2B/2p2Bn1/1nQ3b1/qqPP1r2/1bkN2Qr b - - 0 1 legal: proof: f4 h5 e4 a5 g4 hxg4 b4 axb4 e5 d6 Ne2 dxe5 Ng1 exf4 Bh3 f3 Bg2 Qd5 Bf1 Qd8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Kg5 b5 a4 f5 Kg6 g3 Kf7 g5 h4 g2 a5 b3 a6 Kb4 a7 c5 h5 f4 h6 g4 h7 g3 Ne2 g1B Rh4 b2 Rh6 f2 Na3 b1Q Rh1 g2 Rh5 f3 Ng3 Qd5+ Kg6 Bh2 Ne4 g1B Bb2 Nd7 Bc4 f1N Bb3 f2 Rf5 Nh6 Ra2 Ne3 Qc1 f1Q Rg5 Nhg4 Qd1 Bg3 Nf2 Qc6+ Kf7 Bh6 Rh5 Bhf4 Rf5 Bc7 Ne4 Ba6 Rf4 Raf8+ Kg7 Qf3 Bf7 e6 a8Q Qc1 Nc4 Nd5 Be5 Qf1 Nb6 Qf2 Rb2+ Ka3 Qc8 b4 Nf6 b3 Rb1 b2 Bd6 Bc4 Qb7 Ba2 Nc8 Qd4 Be5 c4 Ne7 Nc5 Ne4 Be3 Rf5 Bef2 Ra1 b1Q Nc3 Qb3 Qh1 Kb2 Qg1 Bb1 Ra6 Qf1 Rh5 Kc1 Nd1 Qa2 Bg6 Qdb2 Be8 Nd3 Rf5 Ba7 Rb6 Nc5 Bg6 Rb8 Rh5 Rhf8 h8Q Nb3 Kh7 Rf6 Bd6 Rf5 Qc3 Rh8+ Kg7 Rh6 Kg8 Qf3 Rg5 Rh1 Bh5 Qf2 Be5 Qd4 Bd6 Rf2 Bf4 Qf6 Re5
2bb2K1/4rB2/3P1qN1/1Q2Pb1R/2Q1qrqB/b2r2Qp/2Np1R2/1kr3nn b - - 0 1 illegal: No proof kernel
N1b2R2/R7/r1BP1Qn1/4pbq1/1Qpb1Pkr/3n2n1/5Bbq/1Q1KN1rr b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 g4 Kd7 f4 Ke6 d4 b5 a4 h5 g5 Kf5 g6 e5 g7 c5 d5 c3 a5 h3 a6 c2 a7 b3 Bd2 c1R Ne2 h4 Bg2 b2 Nbc3 b1B Na4 h2 Nb6 c4 Ba5 b4 Bf1 e3 Ra4 b3 Rg1 h1N Rb4 h3 Rg3 h2 Rg2 b2 Rg3 Nd7 Rb5 Rh4 Ng1 e2 Ra3 Kg4 Nf3 Qg5 Bg2 Ne7 g8Q Ng6 Qf7 Bc5 d6 Be4 Qf6 b1B Bc3 Be3 Bd4 Ng3 Rba5 Bg1 Bf2 h1Q Kd2 Bbc2 Ne1 Nc5 R5a4 Beb7 Bc6 B2f5 Ra2 Ra1 Qb1 Qh2 Qb4 Nd3 Rb2 Rb8 a8Q Rc1 Qa7 Ra8 Qb8 Ra6 Na8 Rb1 Be8 Bg2 Bc6 Rb6 Ra7 Ra6 Ra2 Ra1 Rf7 Rc1 Rf8 Ra1 Nf3 e1R Qb1 Rf1 Q8b4 Rc1 Be3 Rf1 Ne1 Bf2 Ba7 Bd4 Kd1 Rh1 Ra3 Ra2 Bb6 Rf2 Ra1 Rff1 Ra2 Rfg1 Bc5 Rb6 Ra7 Ra6 Bb6 Ba1 Be3 Bd4 Bf2
1q1n2KR/nQrbN3/1rqPPb2/n1b1RbN1/1kB3qp/1Q6/1B1q2p1/2Q5 b - - 0 1 illegal: No proof kernel
r2b2n1/QqnRq2r/1NP5/R7/3KB1Pp/Q1N1n1Rb/1b1pr1k1/2b1B2r b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 a4 Ke6 c4 Kf5 f4 Kg4 c5 Kg3 a5 b5 f5 h5 c6 e5 f6 d5 a6 h3 f7 b3 a7 b2 Rh2 d3+ Ke3 d4+ Kd2 b4 Qa4 b3 Qb4 e3+ Kd1 e4 Qb5 e2+ Kd2 e1B+ Kd1 h4 Na3 b1Q Qa6 e3 Be2 d2 Bd3 b2 Ke2 d1N Qa5 Bh6 f8R Na6 Qh5 Nc7 Qe8 Rh7 Be4 Qe7 Qd7 Ba5 Rh1 h2 Nc4 Bg7 Bd2 d3+ Kf1 Bh6 Nb6 e2+ Ke1 Bc3 Ra5 Be3 Qd4 Bh3 Rd8 Bg5 Rd7 Be3 Qa4 Bg7 Bb4 Bc1 Qa3 Ne3 Bc3 Qc2 Bd2 b1R Bc3 Ra1 Bb4 Re8 a8Q Qb3 Qa7 Bgb2 Bc3 Ra8 Bb4 Ra2 Bc3 Kf4 Kf2 Qb5 g4 Qa6 Nf3 Qb7 Rf1 h1R Bd2 Bc3 Nd4 B3b2 Ke1+ Kg3 Nb5 Kh2 Kf2 e1B+ Kf3 Bg3 Be1 Bf4 Nc3 Bg5 Bg6 Bf6 Kf4 Kg2 Rf3 Qf7 Ke4 Bd8 Kd4 Qe7 Re5 d2 Be4 Ra1 Qb4 Ra5 Rg5 Re5 Qba3 Re6 Ra5 Ned5 Bf5 Re2 Be4 Ne3 Rg3+
1nb3q1/n1qR4/1NpNQQ1B/qpr2qR1/2P5/b1R3BP/r2k4/b1nb2K1 b - - 0 1 legal: proof: e4 h5 g4 hxg4 b4 d5 b5 dxe4 b6 axb6 Be2 b5 Bc4 b4 Be6 Na6 Bf5 Nb8 Bg6 fxg6 Bb2 g5 Ba3 Kf7 Bc1 Ke8 Kf1 Kd7 f4 Kd6 a4 Kd5 c4+ Kd4 h3 Kd3 f5 b5 f6 e5 f7 g3 a5 b3 a6 c6 a7 e3 Bb2 g2+ Ke1 e4 Qg4 e2 Kf2 e1N Nf3 g1B+ Kf1 e3 Qh5 g4 Ra2 g5 Qh4 g3 Qh6 g4 Qf4 Ba3 f8Q Qc7 Ng5 Rh5 Bc1 b2 Nc3 b1B Rb2 Ne7 Na4 Bc2 Nb6 Bd1 Ne4 Rc5 Rb3+ Kc2 d4 Nd3 d5 e2+ Kg2 e1Q d6 Bd4 d7 Ba1 d8B Qa5 Kg1 g2 Be3 Nc1 Qd6 Na2 Qe6 Nc1 Rb1 Kd3 Nd6 Kc2 Bf2 Kd2 Rb4 Ba6 Qff6 Nc8 Rb3 Bb7 Rc3 Ba6 Kh2 Bb7 Kg3 Ba6 Rh2 g1Q+ Rg2 Qf1 Kh2 Bb7 Rg1 g3+ Kh1 g2+ Kh2 Nd7 Bg3 Qf5 Be7 Rb8 a8R Na7 Bf8 Bc8 Re1 Rb7 Kg1 Nb8 Bg7 Nb3 Re5 Nc1 Nd5 Rb6 Bf8 Ra6 Nb6 Na2 Bg7 Nc1 Bh6+ Qf4 Nd7 Bb4 Rb3 Qa3 Nf5 Bb7 Nb6 Nd7 Rd8 Bc8 Nd6 Nb8 Bh4 Qg5 Kh2 Qa4 Ree3 Qf5 Rd7 Ra5 Bf8 Qa2 Rg3 Qa3 Rbe3 Qc3 Rg8 Ra2 Bh6 Ba3 Rg6 Qa5 Rc3+ Qg5 Kg1 Bb3 Kf2 g1Q+ Kf3 Qg4+ Kf2 Bd1 Bg3 Qf3+ Kg1 Qf5 Re3 Qgg4 Rg8 Qgg6 Rgg7 Qh7 Rg5 Qg8 Rc3
4br1k/1b6/p2Qqq1n/2r1Rrr1/qPBN1Bnb/Pb3pQK/5B1R/5N2 b - - 0 1 legal: proof: f4 e5 d4 exf4 g4 h5 c4 hxg4 c5 b6 Qd3 bxc5 Qd2 cxd4 Qd1 d3 Kf2 f5 Kg2 Kf7 h4 d5 e4 g5 b4 Kg7 a3 c5 e5 d2 e6 f3+ Kg3 c4 h5 f2 e7 c3 e8Q a6 Ra2 d4 Ra1 d3 Nf3 f4+ Kg2 c2 Qb5 g3 Nc3 g4 Na4 Nh6 Rh2 Bb7 Qe2 d1Q Qe4 d2 Qbc4 Qf6 Nb6 Nd7 Qcd3 Ne5 Ng1 f3+ Kh1 Be7 Bb2 c1R Rb1 Qa4 Bd4 d1B Be2 f1B Nd5 Rc5 Qf4 Raf8 Bf2 Bb3 Re1 Rhg8 Qdd4 Kh8 Ne3 Rg5 Qd6 Rf5 Bc4 Bd8 Ne2 g2+ Kg1 Qe6 Nd4 Bh4 Qg3 Qf6 Bg8 Bb5 Nf1 Be8 Bc4 Qe6 Rh1 Qf6 Kh2 g1R Re4 Nhf7 h6 Qe6 h7 Nh6 Qg2 g3+ Kh3 Neg4 Qh2 g2 Qhg3 Rg5 Rh2 Rh1 Bd5 g1Q Bc4 Rcf5 Re5 Qf6 Ne3 Qe1 Nf1 Qe4 Ne3 Rc1 Nf1 Kg7 h8B+ Kh7 Bb5 Rc5 Bc4 Qec6 Re2 Qe6 Be5 Kg8 Bf4 Kh8 Re5 Qf6 Qd8 Qce6 Qd6
1r4Q1/kq1b3n/p1rb1n2/qnBb3P/1P2R3/NBprQ2R/1b6/n1B1KN2 b - - 0 1 illegal: No possible last move
3kn1b1/1B2r1qP/3b1Rr1/1np2Nn1/R1qnpBQR/1QPq1q2/b6K/N7 b - - 0 1 legal: proof: f4 h5 e4 a5 g4 hxg4 b4 axb4 e5 d6 Ne2 dxe5 Ng1 exf4 Bh3 f3 Bg2 Qd5 Bf1 Qd8 Kf2 g5 Kg3 e5 d4 b5 a4 c5 h4 f5 h5 f4+ Kh2 e4 h6 b3 d5 b4 d6 f2 a5 f3 c3 b2 a6 b3 h7 Ra7 Bd3 f1Q Be3 f2 Bb5+ Nc6 Bd4 Nf6 Be5 Rg8 Qe1 Re7 a7 Be6 a8Q Rg6 Qa5 Qc4 Bd4 f1Q Qa4 Bg8 Qe2 Qf3 Qg2 g3+ Kh3 g4+ Kh4 Kd7 Ba6 Ne8 Nd2 b1B Be5 b2 Bf4 Ba2 Bb7 b1N Ne2 Na3 Nd4 Nb5 Nf5 Ncd4 Qh3 g2 Qb3 g3 Qg4 g1Q Kh3 Qa8 Rh2 Kd8 d7 Qge3 Rhh1 g2+ Kh2 g1N Rf1 Qb8 Ra1 Qe5 Rf1 Kc7 d8R Qed3 Ra8 Nh3 Ra4 Ng5 Bg3 Qfe2+ Kg1 Rgg7 Ne3 Qb1 Qc2 Ref7 Nb3 Kd8 Rh4 Rg6 Na1 Bd6 Qb3 Re7 Kh1 Qed1 Kh2 Qg7 Rf6 Qbd3 Nf5 Q1f3 Bf4
8/nn1r3P/K4NqB/QQp1bP1N/2B1pB1b/1b1r3n/qn1RqR2/k5q1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 h4 Ke6 a4 Ke5 f4+ Kd4 d3 c5 a5 e5 h5 g5 a6 b5 h6 g3 a7 c3 h7 e3 Qc2 b3 Qa2 b2 Rh3 c2 Bg2 b4 Bh1 b3 Nd2 Kc3 d4 b1Q d5 g2 d6 b2 d7 g4 Rf3 g3 Nb3 Bg7 Qa3 Nh6 Qa6 Qe7 d8B Nf5 Qa2 Nc6 Bc7 Nd6 Rf1 Be6 Rd1 Rad8 a8Q Rd7 Qb7 Na7 Bb8 Rhd8 Qa3 Qa2 Bc7 b1Q Qb5 Nb7 Nh3 g1Q Nd2+ Bb3 Bd5 g2 Bc4 Rd3 Rf1 R8d7 Rf2 Qe8 Bd6 Qbb2 f5 Qg6 Nf4 Bf6 Kf3 e2+ Ke4 e1B Nh5 Bh4 Bf8 Bg3 Bh6 Bf4 Re2 Bh4 Rf2 Bh2 Nf6 B2g3 Nf1 Bh2 Bcf4 c1N Ng3 Qe2+ Be3 Kc2 Qaa5 Kb2 Ngh5 Qh1 Bf4 g1N+ Rg2 B2g3 Bh6 Qh2 Rf2 Nh3 Bf4 Qg1 Bh6 Qa4 Ra2+ Kb1 Rd2 Ka1 Bf4 Qa2 Bh6 Rc3 Bf4 Nd3 Bh6 Nb2 Bf4 Nd6+ Kd5 e4 Bh6 Be5 Bef4 Nac8 Kc6 Na7+ Kb6 Nb7 Ka6 Re3 Be6 Red3 Bc4
7B/3Q1n1P/PbrN1q1b/2r2p2/Bnnr4/Q3nr1R/2p1R2N/2k1qbKN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 Kd4 a5 b5 d3 g5 a6 c5 e5 c3 e6 c2 h5 b3 h6 f3 e7 g3+ Ke1 f2+ Ke2 g2 e8Q b4 h7 c4 Bf4 c1R Bg3 g4 Rh4 b2 Qc2 c3 Qb3 Qf6 Qa3 b3 Rh2 Nh6 Ra2 Nc6 Qee7 Nb4 Nd2 b1Q Qe6 b2 Bf4 g3 Qeb3 Bh3 Rh1 Rc8 Qd1 Rc6 Kf3 c2 Be2 f1N Ne4 Ne3 Nf2 Qa1 Rh2 b1N Qd2 Rd1 Nh1 Rg8 Rb2 Rg5 Rb3 Rgc5 Rc3 Qh4 Rb3 f5 Bd6 Nf7 Be5+ Kd5 d4 Qf6 Rd3 Kc4 d5 Bh6 d6 Qc3 d7 Qa1 Qb2 Na3 d8N Qb1 Bc3 Qc1 Qa1 Kb3 Nb7 Nac4 Nd6 Qb1 Qa5 Qa1 Be5+ Qc3 Bf1 Kb2 Qa3+ Kb1 Ke2 Qa1 Nf3 g1R Rf2 g2 Nh2 Qc3 Kf3 Qa1 Be2 Rgf1 Rc3 g1B Kg3 Qe7 Bh8 Qf6 Bh5 Bg2 Re2 Bh3 Qd5 Rd4 Qe6 Rf2 Qd7 Bf1 Rd3 Qc3 Bf3 Qe1 Bd5 Nd2 Bb3 Ndc4 Rc3 Ng2 Kh3 Rff4 Rg3 Rf3 Ba4 Bge3 Ng4 Bf2 Kh2 Nge3 Rh3 Rd3 Qc3 Rd4 Qd3 Kc1 Qc3 Bh4 Kg1 Bg3 Nh2 Be5 Nb7 Bc7 Nd6 Bb6 Qa3+
3bk1KQ/3N1rp1/1b2r3/R1Nn1Q2/3n1P2/q2PB2b/nN1pb1Bn/2q1R2q b - - 0 1 illegal: No proof kernel
1qR5/3Q1Pn1/rrnpn1B1/4k3/b2bb1QK/4P2N/2qNQ1qp/R1b1n1B1 b - - 0 1 illegal: No proof kernel
2N1R3/2qB1pnp/bB1R4/1q3N2/3nn1Q1/PrBP1Qb1/1q2rk2/3Kbq1b b - - 0 1 illegal: No possible last move
2q1N3/1N1Pr2k/2nn2Q1/5b2/1QRNPq1p/rB3bp1/RK2nB1b/4rb1r b - - 0 1 illegal: No proof kernel
QR1N3B/2QP2bn/1pR3p1/B3n1r1/r4q1r/1kn1Bq1n/rPq2Nb1/4K3 b - - 0 1 illegal: No proof kernel
5br1/2Np1K2/1nB2P1P/r1pQ1b2/4NrB1/1qqr1k2/R1Q1q2n/2nq2BR b - - 0 1 illegal: No proof kernel
qQ5r/2P2q1R/1RB2n2/r3Q2r/rb3B1b/p1n1KQ2/np1P3b/2kb1NN1 b - - 0 1 illegal: No proof kernel
1rk4Q/B1Pqn2b/4bQ1K/5QNR/nb1P3n/b1pB4/p1qnq1N1/4Rr2 b - - 0 1 illegal: No proof kernel
1Q6/KPQp1N2/bN1PBN2/r3nqB1/1q2qR1r/b1b2r2/1qr2pn1/k4R2 b - - 0 1 illegal: No possible last move
Qq1N1qr1/Rpq2n2/P2Q2r1/1Bb1R3/pbb4K/6NP/Brb1n3/B1r1k3 b - - 0 1 illegal: No proof kernel
1n2K1b1/PR3r2/1p1bN1n1/B4kB1/2PQ4/b1Qnb2q/1n1qr1pR/3B2Nr b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 Kf6 a4 d5 f4 e5 c4 g5 a5 b3 h5 e3+ Kd3 e4+ Ke2 g3 f5 g4 h6 g2 a6 b2 h7 b6 a7 g3 Rh4 d3+ Ke1 d4 Qg4 e2 Kd2 e1B+ Kd1 e3 Bd2 Qd7 Ba5 d2 Ke2 d1N Kf3 d3 Ke4 e2 Rh1 d2 Ra4 Bd6 Qh3 Ne7 Ra2 Ng6 Kd5 Re8 Na3 b1R Nb5 Nb2 Nd4 d1Q h8Q+ Kg5 f6 Beb4 f7 e1N f8B Re2 Rh2 Qd2 Be7+ Kf4 Ra1 Ned3 Q3h4+ Qg4 Ne6+ Kf5 Qc3 Ba3 Bg5 Qh3 Qhd4 Bd7 Ra2 Be8 Rh1 Bf7 Rh2 Bg8 Ra1 Nd7 Kc6 Rf8 Ra2 Rbe1 Ra1 Rf7 Rd1 Bdc5 Kc7 Nb8+ Kd8 Bf8 Ke8 Bfd6 Nf3 g1B Bg2 Be3 Ng1 Rf1 Bf3 g2 Re1 Ref2 Bd1 Re2 Nf3 Rh1 Ng1 Rf2 Re2 Bef4 Re4 Be3 Rh4 Re2 Rh7 Rf6 Re7 Rf7 Rb7
1qqkb1R1/pnBB1brR/3n2n1/1P6/r4p1b/N7/bPQ1R3/KnrNQ3 b - - 0 1 illegal: Other
bq2rb1B/p1pR2R1/Pk5K/3q3n/4QBqq/2bnNQrP/1n1Q4/2N2n2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 h5 Nc3 h4 Be2 h3 Bf1 fxg6 Bg2 hxg2 Nb1 g5 Qf3 g4 Qe2 Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 g5+ Ke5 e3 f4 e2 d4 e1B a4 c3 b4 c2 h3 g3 a5 g4 f5 Na6 Kf4 e5+ Ke3 e4 Kf4 e3 f6 e2 Kg5 Qd5+ Kg6 Bb7 f7 Nc5 a6 Na4 b5+ Kb6 Qd2 Nf6 Nc3 Re8 Nd1 Ba8 Ne3 Nh5 Bb2 Rh7 Rd1 Rg7+ Kh6 c1N Ba1 Nb2 Rh2 Bd6 f8Q Ncd3 Qf3 Bf8 Rh1 Qb7 d5 Qb8 d6 Rg8+ Kh7 Rg6 d7 Rg8 Qb4 Bc3 d8B e1Q Ne2 g1N Nc1 g2 Qbe4 g3 Bg5 Ne2 Bf4 g1Q Rd2 Qgf1 Rg1 g2 Rd1 Rg7+ Kh6 Qh4 Rd2 Neg3 Rd1 Ka5 b6 Qf2 b7 Nf1 Rd2 Kb6 Rd1 Qhd8 Rd2 Qfh4 Rd1 Qbc8 b8Q+ Qb7 Qc8 Qdd5 Qd7 Qb8 Rd2 Nf2 Rd4 Nfd3 Qd8 Qc4 Rd7 Qd5 Rh1 g1Q Rh2 Bd6 Rg2 Rgg8 Rgg7 Qgg4 Rge7 Rg5 Rg7 Bf8 Qg3 Qgf5 Qgf3 Rg3 Qg5 Rg1 Qgg2 Qfg4 Qd2 Rg3 Ne2 Bf6 Nc1 Nd1 Bae5 N1b2 Bc3 Bb4 Rh7 Bfe7 Bh8 Bc3 Rf7 Bf8+ Rg7
2N2BQ1/nrb2Q2/4bR2/2p1bqr1/1B3P1K/nN1Rn1Pn/2Bbb2p/2b4k b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 a4 Kd7 f4 Ke6 Kf2 Kf5 d4 h5 d5 e5 a5 b5 d6 c5 a6 h3 Kg3 e3 d7 Ke4 a7 c3 Ra5 c2 Ra4 h2 Qd2 e2 Qc3 e1B+ Kh3 h4 g3 Ne7 Qa3 Rh7 Ra5 b3 Ra6 b2 Rd6 b4 Be3 c1B Rb6 b3 Rc6 Bg7 Rf6 Bed2 Rh6 Nf5 Rb6 Qf8 d8B Be6 Kg4 h3 Qa6 Nc6 Bd4 Ne3+ Kg5 Rb8 a8Q Rb7 Qa5 Na7 Qa6 Rh5+ Kg6 Rg5+ Kh7 Qf7 Na3 b1B Qc4 b2 Ne2 Bd3 Be7 b1N Nb5 Na3 Bf8 Bh8+ Kh6 Kf3 Ba1 e4 Bc3 Be5 Nd6 Qf5 Nd4+ Kf2 Nc8 Be2 Rg1 h1N Nb3 h2 Bb4 Kf3 Bh3 Nf2 Rd1 Bc7 Bg4+ Kg2 Ra6 Bc3 Rd3 B3e5 Bh5 Kh1 Bg6 Nh3 Qd5 Nec2 Qd7 e3 Qf7 Bh5 Rad6 e2 Ra6 e1B Rb6 Bc4 Rf6 Ne3 Bh7 Bed2 Qb8 Qe6 Bf5 Be2 Bg6 Rg4 Kh5 Rg5+ Kh4 Qf5 Rd7 Qe6 Bc2 Qf5 Rd3 Be6 Qg8 Bb6 Qc7 Ba5 Qch7 Bac7 Qhf7
2Rqn2Q/1r2N1r1/KQ4k1/1pR4b/Q1B2r1r/1nbPrr2/2P1Nb1p/2B2b2 b - - 0 1 illegal: No proof kernel
N1r3R1/3Q1b2/qbr2p2/bN1Q2pn/Q4kPR/3B4/PK2b1r1/rn1r2Br b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 f5 cxd4 f6 h4 Qd2 exf6 Qc3 f5 Qf3 f4 Qg3 hxg3 Kd2 Ke7 e4 Ke6 c4 Ke5 Kc2 d5 h4 b5 h5 g5 h6 g2 c5 d3+ Kb3 f3 h7 d4 c6 f2 c7 d2 Bb2 d1R Bc4 f1B Nd2 Kf4 e5 d3 e6 Rc1 e7 Nc6 e8Q Na7 Qe6 Qf6 Qc6 Be6 c8Q Be2 Q8a6 Rc8 Ngf3 g1B Rb1 Bb6 Nf1 d2 Ne1 d1R Ne3 Qg6 Qa8 Nf6 N3c2 Nh5 Ba3 f6 Bb2 Qd3+ Bc3 Bf7 Kb2 b3 Ne3 b4 N1c2 Nb5 Bd4 Na3 Qd5 Bd6 Qab7 Bdc7 Rh4 Ba5 Qd7 Bcb6 Qbd5 Rc6 Bb5 Rhc8 h8Q Rh1 Ba6 Rcg1 Qhe8 Rg2 Nc4 Rd1 Rc1 Nb1 N2a3 Rh1 Nd2 Qb5 Bg1 Qa4 Bd3 Qb5 Rc5 Qa6 Kc1 b2+ Kc2 Nc3 Nb5 b1R Nc4 Rd1 Kb3 Nb1 Kb2 Bc7 Nb6 b3 Na8 Bcb6 Rc2 Nc3 Ka3 b2 Rc1 b1R Rc2 Ra1 Kb2 Nb1 Qee4+ Kg3 Qa4 Rg8 Rc4 Rgc8 Re4 Kf3 Re8+ Kg3 Qab3 Kf4 Rg8 Rf1 Qa3 Rd1 Qa4+
1k6/1nnbN1b1/RB2pnr1/1RNP4/1BQ5/KB1Pr1q1/n2bb2p/Q2n1n2 b - - 0 1 illegal: Other
2b2B2/qr4p1/4P1n1/1NN2bkP/bR4B1/R1QR1r1r/r2Q2p1/1b1bKnb1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Ke7 h4 Kf6 c4 d5 e4 b5 a5 g3 a6 b3 c5 f3 a7 b4 c6 g2 c7 b2 Ne2 d3 Nd2 b1B Nf4 d4 Ra5 b3 Kf2 b2 Ra2 Ne7 Rg1 Ng6 Be2 Na6 Bf1 Qd7 Nc4 d2 Qe2 d1B Nb6 d3 Ra5 d2 Qe3 Nb4 Ra3 Bc5 Ne6 Nd5 Nc4 Ba4 Na5 d1B e5+ Kf5 Qd4 Ne3 Be2 Nf1 Ke1 Bd3 Qd6 b1B Nc4 f6 Rh1 Bg1 Nc5 Kg4 e6 f5 Qd4+ f4 Rh3 Bf5 Qd2 Rb8 a8Q Rb7 Qaa5 Rh6 Qac3 Qd4 Nb3 Qa7 Nd6 Rh8 h5 Kg5 Ra2 Rd8 Nb5 Rd3 Qe3 Rd2 Ra3 Ra2 Nc5 Ng3 Bb2 f2+ Kd2 f1R Bg4 Rf3 Ke1 Nf1 Qed2 Rf2 Rd3 Rf3 Rb3 Rh3 Rb4 Ne3 Ba3 f3 Qdb2 Bd7 c8R Nf1 Ra8 Bc8 Qbc2 Ng3 Q2b2 f2+ Kd2 f1R Qbc2 Rf2+ Ke1 Rf4 Q2d2 Nf1 Nb3 Qa5 Rbd4 Qb6 Bd6 Qa6 Nc5 Bab3 Bf8 Qa4 Qdb2 Rff3 Rb4 Qa5 Ra7 Qb6 Ra6 Qa7 Ra3 Ba4 Qbd2+
B6K/r2bb1n1/Nqr1n1pN/n2Q1P2/R1P1rQ2/3Q2p1/3r1bnB/1kR3b1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 c4 Kf6 a4 Ke5 h4 b5 f3 d5 h5 e3+ Kd3 g3 a5 b3 h6 e2 h7 e1B a6 b2 a7 b4 Bd2 g6 Na3 b1R Bg2 b3 Qc2 b2 Bh3 Nd7 Qd1 Nh6 Bg4 Bf2 Rh5+ Nf5 Bh6 Nc5+ Kd2 d3 Kc3 d4+ Kb4 d2 f4+ Ke4 Bg5 Kd3 Rh1 e5 Ra2 e4 Rh2 e3 Ne2 Be7 Bf3 Re8 h8Q Qb6+ Nb5 Ng7 Qf8 Bg1 Ra4 Bd7 Bb7 Rac8 a8Q Rc6 Qd8 Ra1 Ba8 b1N Qf6 Bc8 Qd5 Bd7 Qf1 Kc2 Qfd6 d3 Nd4+ Kb2 Nf5 e2 Nh6 e1B f5 Bef2 Be3 d1R Qf4 d2 Qfd3 Nce6+ Bc5 Kc1 Rg2 Na3 Kc3 Nc2 Nc7 Ncd4 Na6 Nb3 Bd4 Na5 Be3 Nc5 Kd4 Nce6+ Ke5 Kb2 Rh2 Ra2 Bc5 Rda1 Rg2 d1N Rh2 Ne3 Rg2 Bf8 Kf6 Be7+ Kf7 Kc1 Bd4 Rd2 Rh2 Nf8 Kg8 Ng2 Kh8 Nfe6+ Ng8 Be1 Rh1 Be3 Qg5 Bd8 Nb8 Nb3 Qf4 Nf8 Ra5 Re4 Nh6 Be7 Ra2 Nfe6 Rc2+ Kb1 Rg1 Ra7 Na6 Na5 Bc5 Bd4 Rf1 Ka1 Rh1 Bb2 Bg1 Bd4 Bh2 Be3 Rf1 Bg1 Rc3 Rde2 Ra3+ Kb2 Ra4 Bef2 Rc1 Rd2 Rc2+ Kb1 Rc1+
7N/k7/r1B1N1pP/nbrn4/r1n5/1p3qbn/b1Pr1BRQ/RQR1b2K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 f5 Kg2 b5 h4 d5 a4 Kd7 e4 Kc7 h5 Kb7 e5 g3 a5 g6 a6+ Ka7 h6 d3 e6 b3 e7 f3+ Kh3 b2 e8R b4 Bg5 d4 Re5 b3 Raa5 f2 Kg2 f4 Qh5 d2 Reb5 d1N Rc5 d3 Rh3 f3+ Kh1 g2+ Kh2 d2 Bh4 Bd6+ Bg3 Ne7 Rcb5 Nd5 Rb6 Qf6 Be5 Nc6 Qh4 Bd7 Bb5 f1R Rg3 f2 Ne2 g1B+ Kh1 Rhc8 Rg2 Qf3 Na3 b1B Nf4 Ba2 Ne6 N1e3 Ba4 d1N Bg3 Nc4 Qh2 Be8 Bh4 Bg3 Rb8 Rc7 Rd8 Re1 Rd7 f1R Rd6 Re4 Nb5+ Kb6 a7 Rf2 Rd7 Rd2 Nd6 B1f2 Nf7 Be1 Nh8 Kb7 Ra6 N6a5 Re7 Bb5 Re8 Be5 Bf2 Rc5 Rf8 Bg3 Rd8 Nf4 Rd5 Nde3 Rdd6 Re2 Rd1 Ned5 Ra1 Nh3 Rc1 Be8 Bb5 Rd2 Bd7 Nc6 Ra3 N6a5 Bc6+ Kb6 Bb7 Bb5 Bc6 Rf8 a8Q Rf6 Qd8+ Ka7 Qf8 Ncb6 Qd6 Ra4 Qe5 Nbc4 Qb2 Bb1 Ra1 Ba2 Ng5 Rd6 Qb1 Re6 Be8 Rc6 Ne6 Ra6 Bc6
8/1N4R1/qr1P2R1/bpN1kQr1/r1qnB2N/4Qb1K/Ppp3n1/Bq1b1n2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 d4 Kd6 e4 h5 g4 f5 Kg2 c5 g5 b5 d5 b3 g6 h3+ Kh2 c3 g7 h4 Qe2 f3 Qb2 c2 Bd3 f2 Nf3 f1N+ Kg1 f4 Nc3 h2+ Kg2 c4 Rg1 h1R Na4 h3+ Kf2 c3 Nb6 h2 Kg2 Nh6 g8N Nc6 Ne5 f3+ Kf2 Ra4 Bf4 c1Q Rg7 c2 Nbd7 Nd4 Ne7 Qb1 Nc5 Qa5 N7g6 Rg8 Nh4 Qa6 Qa3 Bg4 Nf7+ Ke7 e5 Nhf5 e6 Kf6 e7 N5e3 e8Q Ng2 Bh6 Be7 Bd2 Bd8 Nd6 Ba5 Qd7 Ke5 Ndb7 Rb8 d6 Rg1 Be4 h1B Bc3 Bh5 Nd8 Rb6 Qg4 Nge3 Qd7 Rg5 Ndb7 Ng2 Qg4 Qb2 Rc1 Qb1 Ba1 b2 Qd3 Nd2 Kg3 f2 Kh3 f1Q Qd7 Bd1 Qe3 Qc4 Qg4 Nf1 Qc8 Bh5 Re1 Bd1 Rg6 Nd2 Rg1 Nf1 Rg7 Ne1 Qf8 Bhf3 Rg3 Ng2 Rg4 Rf5 R4g6 Rg5 Qf5+
3kn3/q3p1rR/B5q1/2rbQ3/n1R1nNPp/2PKR2q/2pNrB2/b1b1Q3 b - - 0 1 illegal: No proof kernel
1QR2N1n/1Qp1r2q/n1nP4/1b6/1pPB1p2/b2kbK1B/rqrQR3/3Nq3 b - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 Kf2 Kd7 a4 Ke6 c4 Ke5 g4 Ke4 d4 e5 a5 b5 d5 h5 g5 f5 g6 b3 a6 f4 a7 h3 g7 h4 Ra6 b2 Rf6 h2 Be3 h3 Rg6 Qd7 Na3 b1Q Qd2 Qb2 Ra6 Rh7 Rg6 Ne7 g8Q Nec6 Bc5 Ba6 Rg5 Re7 Ke1 f2+ Ke2 Qf5 Bb4 Qh7 Qc2+ Kd4 Be1 e4 Ba5 e3 Bg2 f1R Bb4 Rc1 Kf3 e2 Re5 e1B Nb1 Bf2 Nc3 Be3 Qb1 Rc2 Nd1 Kd3 Bc5 b4 d6 Bb5 Qh8 Na6 Bd4 Bg7 Ne2 Bf6 Re1 h1N Qb8 h2 Qc1 Ng3 Bh3 Nf5 Rg1 Bh8 Rg8 Nh6 Rc8 Nf7 Re6 Bg7 Re5 Nh8 Qb7 Rb8 a8Q Bf6 Qaa7 Ra8 Qab8 Bg7 Bc3 Bf6 Nd4 Bg7 Ne6 h1Q+ Bg2 Qg1 Bh3 Qe1 Nf8 Bf6 Re4 Bfd4 Qa1 Bc1 Re2 Bde3 Bg7 Nc5 Bd4 Ra2 Qb1 Na6 Qa1 Qbc3 Qb1 Ba3 Qc1 Qb2 Qd2+
2Qb2q1/p2n1p1B/RNr3qB/qkQ2N2/b4B2/2PP3n/prnR1r1b/3K4 b - - 0 1 illegal: No proof kernel
3b1R2/2nnb3/1Q1Nb1Kp/Bn4p1/1PP1R1b1/2Br1rNk/2p3Bb/1Qrq4 b - - 0 1 illegal: No proof kernel
1R3rNN/NQ1r3P/1Bp1nrb1/K1PbQq2/3n3b/n2k1np1/2R4p/4B2n b - - 0 1 illegal: No proof kernel
r1b2b1n/1k1r1Qq1/2Q5/rBq1BQ2/R2N1p1R/pqN1rr2/1P2pP2/K5n1 b - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 b5 d4 bxa4 d5 c6 Kd2 cxd5 Ke2 dxe4 Ke1 e3 c4 f5 g4 e5 c5 h5 c6 a5 c7 d5 g5 Kd7 g6 Kc6 g7 f4 Nd2 h3 Nb1 d4 Qe2 d3 Kd1 d2 Kc2 d1R Qf3+ e4 Bd3 e2 Qe3 e1R Qc5+ Kb7 Qe7 a3 Ne2 h4 Qf6 a4 Bb5 h2 Ra2 e3 Bd7 h3 Ra1 a2 Bb5 Qd5 Rg1 h1Q Nd4 h2 Nd2 Rh3 N2b3 Nc6 Qd6 Rf3 Nf5 Ne5 Qe6 Nh6 g8Q Qg2 Ng3 h1Q Bd2 Qc5+ Bc3 Rd7 Ne4 Qhh3 Qgf7 Qg7 Rh1 Qhg3 Qff5 Nhf7 Nd4 Nh8 Qef7 Ra5 Rh4 Ra8 Rb1 a1R Rc1 Ra3 Kb1 e2 Rd1 Re3 Rc1 Nf3 Rd1 Rb3 Ka1 Rg1 Re1 Qh3 Rd1 Rg5 Rg1 Rh5 Rg6 a3 Ra6 Ng1 Ra4 Rh6 Ne6 Qhg3 Be5 Rh5 Nc3 Rf3 Nd4 Rg5 Na2 Rbe3 Nc3 Qh3 Qc2 Qe6 Qcf5 Qb3 Ba6+ Kb6 Bd6 Qcc4 Q5g6 Ra5 Qgf5 Bb7 c8Q Qc5 Be5 Ka7 Qc6 Bc8 Qcd5 Kb6 Bb5 Ka7 Qd6 Kb7 Qc6+
3q4/N1B1n1q1/nR2r2b/1K1Nr1bQ/p1B1P1k1/6p1/n2PbQbp/1b1RB3 b - - 0 1 illegal: No proof kernel
3n2Q1/B1K1Q2q/2R2b1p/1bbr1pkb/2pNP3/NPq5/3q3R/Rr1b1B1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 g4 a5 d4 h6 b3 f3 d5 h3 e3 a3 d6 c3 Kd5 a4 e4 c2 d7 h2 Bd3 f2 Bf4 c1Q Bc7 f1B Nc3 a2 Be5+ Kg5 Nb5 a3 Bg3 Qe7 d8R Qd2 Na7 Nf6+ Kc4 Nh5 Kb5 Nc6 Re8 Nd8 Be5 Ng3 Rc1 a1Q Kb6 a2 Ba6 Bb5 Ne2 Qac3 Bb8 a1B Nd4 f5 Qg1 Bcd7 Kc7 Qh7 Re6 Bb2 Ra1 Be8+ Re7 Bf7 Re6 Be7 Rb6 Bh5 Rc6 Rg8 Qd1 Rg6 Qg1 Rd6 Qg2 Ba3 Qh3 Rd5 Qh4+ Kf4 Qf6 Bb2 Qe6 Kg5 Qd7 Bf6 Qf7 Ba3 Qe7 Ba4 Bd3 c4 Nab5 Bc5 Na3 Bb5 Bf1 Ra5 Ba7 Ra6 Rg1 h1B Rg2 Ra5 Rh2 Bf3 Nac2 Nh1 Na3 Kf4 g5 Bd1 g6 Kg5 g7 Ra4 Nac2 Ra2 Na3 Rb2 Qf7 Rb1 Qe7 Kg4 g8Q+ Kf4 Qh8 Kg5 Qg8+
R2b4/3r2bb/n2PBN2/p6n/1n1N1P2/nQBQ1Knr/q2qp1pR/kQ6 b - - 0 1 illegal: No possible last move
q1r1Q1bk/r1bN2Pb/2PN1KB1/Rp2R1p1/3q1n2/3q4/1pq1n1R1/Q5Bq b - - 0 1 illegal: No possible last move
1Br1n1Nn/2bq2pq/n2n2P1/2Bq4/Q1RNQn1P/pb4r1/2Rp4/K1Rk4 b - - 0 1 illegal: No possible last move
b1R2B2/1R2nP2/rp1rN1P1/2rB2Q1/p2qQ1r1/2np3b/1K5b/2RN1qrk b - - 0 1 illegal: No possible last move
1Bb2b2/Q1k2p2/1p1b3b/qPP3bn/2RR4/3Rrn1q/1Np1Q2N/2B1r1nK b - - 0 1 illegal: No possible last move, all moves rejected
B1k1n3/Nr2pbn1/q4rr1/2r2RQQ/1P1p1bKR/B3b1N1/4pr1P/q3Q3 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 a5 b4 d5 c4 Kd7 f4 g5 c5 g3 f5 d3+ Ke3 g4 Kf4 e3 f6 e2 f7 a3 Be3 g2 Ra2 a4 Qd2 d4 Nc3 g3 Nf3 g1B Qb2 g2 Bd2 Bh6+ Ng5 Nc6 f8Q Ra5 Qa1 Be3+ Kg3 g1R+ Kh4 Qb6 Qc1 Qa6 Rb2 a2 Qd1 a1R Qf7 a3 Qg7 a2 Nge4 Nf6 Rb3 Ne8 Nb5 Rf8 Qg5 Rf2 Na7 Nd8 Bg2 Ne6 Kg4 N6g7 Bc1 d2 Qe1 d1R Ng3 Rd3 Qh5 Bhf4 Ba8 Rb5 Rc3 Rb7 Ba3 Rc1 Qg5 Rgg2 Rf1 a1Q c6+ Kc7+ Kh4 Kd8 c7+ Kd7 Rc6 Rc5 Kg4 Rdc3 Rf6 Rc6 Rf8 R3c5 Rf5 Rf6 Qh5 Kd6 Rg1 Be6 c8Q Bf7 Qe6+ Kc7 Rf1 Rh6 Qf6 Rg6+ Qfg5 Rf3 Rg1 Rgf2 Nh1 Kb8 Rg3 Kc7 Rh3 Kd8 Rh4 Kc7 Nc6 Kc8 Ng3 Bb8 Rd5 Rff6 Rf5 Bbf4 Na7+
1K2Bk2/BR1Npr2/1r2q1P1/2bN2n1/1QPp2bb/pQ1N1q2/1bbr4/n6R b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 d5 f4 h5 c4 a5 g4 e3 Kf3 h3 b4 a3 g5 a2 b5 a4 b6 d3 b7 h2 g6 d2 f5 h4 Kf4 e2 Ke5 e1B f6 h3 Qb3 d1R Bd2 a3 Qg3 Na6 b8N Bh6 f7+ Kf8 Qc3 Qd7 Bf4 Nc5 Na6 Rh7 Bg5 Rd2 Nb8 Nb3 Qg3 Ra6 Bg2 Nf6 Nc3 Rb6 Nge2 Ne4 Be3 Ng5 Rb1 a1B Nc1 Bb2 Nd3 Na1 Bc5 d4 Bc6 Qg4 Qe3 Bh4 Nd5 Qf3 Qe1 Bg4 Be8 Rg7 Qd1 Rh7 Qb3 Rg7 Rhf1 h1B Qb4 Bg2 Rh1 h2 Qb3 Qh3 Qb4 Be4 Qb3 Rf6 Ba7 Rb6 Qb4 Rh7 Nd7+ Kg7 Rhd1 h1Q Qb3 Q1f3 Rh1 Ne6 Qb4 Be3 Qb3 Ng5 Qb4 Bef2 Qb3 Be1 Qb4 Kh6 f8Q+ Rg7 Qf6 Rf7 Qfd6 Kg7 Qb3 Bef5 Qdb4 Be4 Nf2 Bc2 Nd3 Qd1 Ne3 Qe2 Kd5 Qhf3+ Kc5 Beg3 Nd5 Qe5 Rhc1 Qe6 Rh1 Rc6+ Kb5 Bd6 Ka5 Bc5 Kb5 Bb6 Ka6 Bc5+ Kb7 Kg8 N7b6 Kf8 Kb8 Qd7 Ka8 Rcf6 Kb8 Qe6 Nd7+ Kg8 Qb6 Qee2 Rhc1 Bc3 Qa4 Qee4 Rb3 Bb2 Rh1 Rc6 Qba5 Qe6 Rb7 Rb6 Q5b4 Kg7 Qab3 Kg8 N7e5 Kf8 Nd7+
B2rnr1N/BK1bp1n1/n1p4P/RNb1Q3/kq6/PNn1n3/5Rp1/rQ4q1 b - - 0 1 illegal: No possible last move
3Nbr2/n2Rp1Qp/nq1np1q1/3P3P/5n2/NB1Q4/kb1Knq2/3BrQ1R b - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 f4 axb4 e5 Nd7 e6 fxe6 Bb2 Nb8 f5 g6 Be5 g5 Bf4 gxf4 g4 Kd7 d4 Kc6 h4 Kd5 a4 b5 g5 c5 f6 b3 f7 f3 g6 b4 h5 b2 g7 b3 a5 f2+ Ke2 c3 a6 Kc4 a7 c2 d5 c1N+ Ke3+ Nd3 Nc3 b1Q Ra5 b2 Ra6 Qb6 Qe1 Kb3 Ra2 c4+ Ke2 Bd7 Ra6 Nh6 g8B Nf4+ Kd2 Qg6 Bg2 f1Q Nf3 Bg7 f8Q Nf7 Nb5 Nd6 Na3 Be8 Nd4+ Ka2 Nc6 Qff2+ Qe2 Be5 Bf7 Bf6 Qg7 Rf8 Ra5 Na6 Bf3 Rc8 a8Q b1N+ Kd1+ Bb2 Qf1 c3 Nd8 Rc4 Qc6 Ra4 Qcb5 Re4 Qbd3 Re3 Rc5 Re4 Rc7 Re5 Nb5 Na3 Rd7 Re4 Be2 c2+ Kd2 c1N Qg2 Qfg3 Bd1 Re1 Qf2 Nce2 Qf1 Qh6 Bg6 Qgf2 Be4 Qg6 Bf3 Nc2 Bg4 Ncd4 Na3 N4b5 Ba4 Na7 Bc2 Qfd4 Ba4 Nc1 Bgd1 Nce2 Bac2 Qf2 Bb3+
1qN2q2/4pqpQ/P4B2/2R3n1/bR5K/1p2bb1N/Qrq1BrPq/3B1kn1 b - - 0 1 illegal: Other
1Nr2B1K/1N1Pr1P1/2q1n2N/p1rqR3/5bBR/pr1Q4/brQp2n1/6qk b - - 0 1 illegal: No proof kernel
8/np1b3n/2n2QBR/PP1K1n2/p1N1BR1r/q2Q1q1p/k2bn1NR/r5r1 b - - 0 1 illegal: No proof kernel
N5Q1/P2Pr1nr/3p1RQB/4rpbB/1p3r2/n2q1rN1/2k4b/Rbq3NK b - - 0 1 illegal: No proof kernel
n2NqN1R/P1p4q/2pQP2q/1B4n1/1b4Q1/1q2qbr1/pB2r3/KnR1k1B1 b - - 0 1 illegal: No proof kernel
7b/p3k1R1/NQr3bp/1Brb4/1q1b2Q1/PRn1N1Kp/q1nb1rP1/1B4B1 b - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 c4 bxc4 e5 f5 Qd2 g5 Qf4 gxh4 Qe4 fxe4 f4 c5 Kf2 d5 b4 c3 b5 h3 f5 c4 e6 d3 e7 d2 f6 d1B a3 c2 b6 h6 b7 e3+ Kg3 c3 Bc4 d4 Be2 d3 Bf3 e2 Bg4 e1B+ Kf4 d2 Nf3 Nc6 b8Q Bg7 Rh2 Bf5 Nd4 Bf3 Nb5 d1Q Qb7 Qb6 Rh1 Bd5 Rf1 Nb4 Be3 c1R Nd2 c2 Nc4 Bf2 Rb1 Qd2 Rb3 Bg6 Bf5 Rc8 Nc7+ Kf7 Na6 Rc6 e8B+ Kf8 f7 Nf6 Rb1 Ne4 Rb3 Nc3 Bd3 Qa5 Qb6 Ke7 Be4 Bg1 Kg3 Rf8 Rf6 Rc5 Bb5 Bh8 Bd4 Be3 Rd6 Qe2 Rd8 Bd2 Bg1 Be3 Rb2 Bed4 Ne3 Qc4 Bf5 Qa2 Ra8 Re1 Rb1 c1B Rb3 Bd2 Bb1 Nc2 Rb8 Rfc8 Ra8 R8c6 Rg8 Rf1 f8Q+ Kd7 Qc8+ Ke7 Qf5 Rf2 Qg4 Qb4 Rg7+
NK2B3/3r2r1/2Nn1qR1/4Q1rB/3R1pRp/3p1bnP/Pb2kqnQ/3b1b2 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Na3 g4 Be3 g3 Bf2 gxf2+ Kd2 exf6 Nb1 f5 Qe1 f4 Qc1 Bh6 Qd1 Bf8 Kd3 Ke7 Kc4 Kf6 Kb5 Kg5 c4 Kg4 e4+ f3 e5 h5 c5 d5 g3 f5 c6 f4 c7 h4 Kb6 b3 e6 d3 e7 d2 e8B b2 Bg6 d4 Qe2 d1B Qd2 d3 Qb4 Nc6 Qc3 Nge7 Qb4 Ne5 Qc3 Nf7 Qa5 Nf5 Qc3 Ra7 Ne2 Bg7 Rg1 N7d6 Qe5 Rh5 Nbc3 b1R+ Nb5 Rg5 Be8 Qf6 Nd4 Ne3 Nc6 Ng2 Be2 Rb4 Rc1 f1B Rc5 Rd4 Rd5 Bf5 c8R Be4 Kc7 b6+ Kb8 Bh8 Rd8 Rag7 Nc7 b5 Rd7 b4 Na8 b3 Ra5 b2 Ra6 b1Q+ Rb6 Kh3 g4 f2 Bf3 Qb2 Be2 Rf5 g5 Bf3 g6 Kg4 h3+ Kg3 Rd8 Rg5 Rd7 Ra4 Rd8 Raa7 Rd7 Qd2 Rd8 Rgd7 g7 Rac7 g8Q Rdg7 Qc4 Rcd7 Qce4 Nc8 Q5d4 Qe7 Qee3 Rc7 Qd6 Rh7 Rd7 Bb2 Qdc5 Rhg7 Rd5 Rd7 Qe4 Bh5 Bg4 Bfe2 Rd6 f1N Rd4 Kf2 Qee5 Nge3 Qc2 Qf7 Be6 Bhf3 Rg4 Ng3 Nd8 Bf1 Bd5 Ke1 Re6 Nd6 Nc6 Kf2 Rh6 Qf6 Bdf7 Ke1 Bh5 Qg2 Nc7 Qg1 Qg2 Qf2 Qh2 Kd2 Rg6 Ng2 Qc5 Ke1 Na8 Ke2 Qe5+
1q1qkQ2/4b3/3Q1qBK/R1bb3p/1n3N1P/r2r1pnp/1RN1P3/n1B2nQ1 b - - 0 1 illegal: No possible last move
nq1rQ3/qR1rBrQ1/1n6/2B2p1K/1R1b2Nb/2p1r1pb/P1PN4/1nk2R2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 Kf2 Kd7 d4 Ke6 h4 Kd5 h5 Kc4 d5 e5 g6 c5 h6 b5 g7 b3 d6 b2 d7 b4 h7 e3+ Kg2 e4 Ne2 b3 Rf1 f3+ Kg3 f2 Qd2 Qa5 Kh4 Qa7 d8Q Ne7 g8R Na6 Ng1 e2 Rd1 e1R Qe8 f1R Kg5 e3 Nf3 e2 Nh2 Nd5 Qa5 Nac7 Rd2 Bg7 Qe5 Nb6 Qd6 Bd4 Rg6 Rd8 h8B Rd7 Nc3 b1Q Rd1 b2 Ne4 Rb8 Be5 Nca8 Kh5 f6 Qa6+ Kb4 Qb7 Ka3 Qe6 c4 Nd2 c3 Qe8 Rf3 Rg7 Re3 Qd8 Rf1 Rh7 e1B Qe8 Bh4 Bf4 g3 Bg5 Rd5 Qg7 Bh3 Ng4 Rbd8 Re1 R5d7 Re2 f5 Rf2 Rfe1 Rf1 Ree7 Rf4 R1e3 Bf6 Rf7 Be7+ Bc5 Rb4 Bd4 Ne4 Qb8 Bd2 Qg1 Rf1 b1N Be1 Qf2 Nd2 Qg1 Rc4+ Kb2 Bf2 Qh1 Ra4 Qhb7 Bg1 Q7a7 Rc4 Re1 Rb4+ Kc1 Rh6 Be5 Bgc5 Bd4 Rc6 Be3 Rc7 Bd4 Rf2 Re5 Rb7 Re3 Rf1+
q1B1K2B/qQkN4/b6r/4p2p/2nBqP1R/N1Q1p3/n2qP1Rr/3nb2r b - - 0 1 legal: proof: c4 a5 h4 f5 b4 axb4 h5 d5 h6 dxc4 Qc2 gxh6 Nf3 h5 Ng1 h4 Qe4 fxe4 g4 Kd7 f4 e5 Kf2 b5 Ke3 c5 d4 b3 a4 c3 a5 b2 d5 c4 d6 b4 g5 c2 g6 h3 g7 h2 a6 b3 a7 c3 Ra5 Nc6 Rd5 Na5 Nh3 Ba6 Rd1 Ne7 Na3 b1Q g8Q b2 Qg3 Qa2 Nf2 b1Q Bb2 c1N Nd3 c2 Bd4 h5 Rg1 h1R Rg2 Rh6 Nc5+ Kc8 d7+ Kc7 Qe1 Rh2 Qc3 Rc8 a8Q Nf5+ Kd2 Ne3 Qb7+ Kd6 Re1 Qe8 d8B Nd1 Bf6 Qd7 Qb5 Qa7 Bh8 Kc7 Nd7+ Bc5 Qbb4 Qaa1 Qbb3 Na2 Qb5 e3+ Kd3 Rd8 Ke4 c1Q+ Kd5 Nc4 Qbb3 Qd2 Qbb2 Rh7 Ke6 Rh6+ Kf7 Qe4 Qbb3 Rg8 Qbb2 Rg4 Ke8 Rgh4 Qb5 Bb4 Qb7+ Kd6 Rf2 Ba5 Bh3 Rh1 Be6 R4h2 Rg1 Bb4 Rg4 Ba5 Rh4 Bb4 Qa8 Kc7 Rg2 Qdc2 Qb3 Be1 Qc3 Qcb2 Nc5 Qd2 Bc8 Qab2 Nd7 Qbb8 Qd5 Qba8 Qb7+
2R2q1R/5N1B/bnr1rBK1/1kp1r2P/n3PQ2/pnQ2R2/r2q3p/bN1q4 b - - 0 1 illegal: No proof kernel
r7/2Nqn1Rq/B4p1p/Q2BB3/bbKNPr1n/3rk2Q/1P2r2p/2n3Rq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 g4 Ke5 e4 a5 c4 d5 g5 h3 g6 f3 c5 f6 g7 a3 c6 a4 c7 a2 Qe1 a3 Bg5 f2 Be2 f1R Be3 Nc6 Bg5 Qe7 Bf3 Bd7 c8Q Nh6 g8B Nf5 Bd1 Nh4 Bh5 Rf4 Kd2 d3 Kc3 d2 Be6 d1R Qb7 d4+ Kc4 d3 Be2 d2 Kb3 Kd4 Nf3+ Ke3 Nc3 h6 Nb5 h2 Qa6 Rg8 Bd5 Qh7 Qa5 Bb4 Nbd4 Ne7 Rg1 Ba4+ Kc4 Rg7 Rb1 a1N Rc1 a2 Qg3 Nb3 Ne6 a1Q Nc7 Rg6 Rb1 Nc1 Qh3 Re1 Bd3 d1Q Bf1 Re2 Nd4+ Nf3 Rg2 Rgg8 Bh4 Rgd8 Rg7 Rd6 Bg3 Nh4 Nf3 Rf5 Be5 Rf4 Bf7 Rd3 Bg8 Bc2 Bd5 Qa4 Ra1 Qd7 Rb1 Qe1 Ra1 Ba4 Nd4+ Qg3 Rb1 Qf3 Bf7 Ra3 Qb5 Na2 Qa5 Rf2 Bd5 Rb3 Bd3 Re2 Rd1 Nc1 Rdg1 Be1 Kc5 Bb4+ Kb6 Ra3 B3c4 Rd3 Ba6 Bd2 Kc5 Bc3 Qe6 Qh1 Kc4 Bb4 Qh3+
2R1B3/2brn3/4np1p/1K1kr2n/Q1p1n1q1/Bb1Rb1Q1/3NP2P/B1qN3q b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 f5 e6 Bb2 exf5 Ba3 fxg4 Bc1 g3 a4 Ke7 d4 Kd6 Kd2 g5 d5 b5 a5 c5 a6 c3+ Kd3 c2 a7 h6 Bh3 g2 Bg4 b3 Be3 c1Q Qd2 f6 Ra2 b4 Bh5 b2 Na3 b1N Nf3 g1B Bd4 b3 Nh4 g4 Qb2 g3 Qd2 b2 Be8 g2 Ba4 Nd7 Qa5 Rh7 Bf2 Nd2 Nf3 b1Q+ Rc2 Ne7 Bd4 Be3 Rd1 g1N Qc3 Ne4 Kc4 Nh3 Rd3 Nf4 Nd2 Nh5 Qb3 Bb7 Kb5 Qc8 Ba1 Qh1 Rc4 Qbc1 Nab1 Rg7 Qc3 Rg5 Qb3 Re5 Nc3 Rb8 a8Q Bc6+ Ka5 Rb7 Nd1 Bb5 Rc2 Bc4 Qc3 Ba2 Qa7 Rc7 Kb5 Bb3 Qa8 Nb8 Qa6+ Nbc6 Qa7 Qg4 Qa8 Kd7 d6 Ke6 d7 Ra7 d8B Rd7 Bb6 Nd8 Qa7 Ng8 Ba5 Bd6 Bb4 Bc7 Ba3 Ne7 Qb8 Rd4 Qb4 Kd5 Rc4 Ne6 Qg8 Qh4 Qg3 Qf4 Ka6 Qg4 Be8 Bg1 Qa4 Be3 Rb4 c4 Rb8 Qg8 Kb5 Qg4 Ra8 Qh3 Kb4 Kd6 Rc8 Qg4 Qa7 Rd5 Bg6 Kc6 Be8+ Rd7 Qa5 Nd4 Qa4+ Kd5 Rc3 Ne6 Kb5 Ba7 Re3 Bc5 Rc3 Be3 Rd3+
2k3bR/1r1Q1B2/r1r1bpPb/6P1/n1qBn1N1/1pp4K/N3N3/q1RnQ2b b - - 0 1 illegal: Other
b3n1K1/1k1r4/rq2pr1B/qnnp2N1/pbR2Q2/1B4QR/1b1P1PB1/1rN5 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 cxb4 a4 bxa4 e5 g5 e6 gxh4 Nc3 fxe6 Nb1 e5 Rh3 e4 Rh2 Nf6 Rh1 Ng8 Ke2 h5 Ke3 a5 Kd4 d5 Ke5 Kd7 g4 Kc6 c4 h3 g5 h4 g6 b3 c5 a3 g7 a2 Ba3 h2 Bd3 h3 Qe2 b2 Bc2 a4 Qe1 e3 Bb4 e6 Bd1 e2 Bc3 Kb7 Bb3 Ra6 Na3 b1Q Nc4 Rh6 Nf3 Rf6 Ng5 Qa5 Nb2 Bd7 Qf1 e1N Nd3 Nc2 Nc1 Bc6 Qc4 Na3 Qf4 Nb5 Bd4 Qb2 Rb1 a1B Bc3 Nh6 g8Q Nf5 Qg6 Ng7 Bd4 Nc3 Be3 Ne8 Qd3 Nb5+ Qc3 Qa3 Rb2 Q3b4 Rc2 Nd4 Qd3 Bb2 Rc4 Qbb6 Qc3 Ka8 Qd3 Nb5+ Qc3 Bb7 c6 Bb4 c7 Ka7 c8B Ba8 Rg1 h1R Rg3 h2 Rh3 Rg1 Bb7 h1R Bc6 Nd4 Bb5 Kb7 Qd3 Rg3 Qg6 Rf3 Qg8 Rf7 Qg7 Rd7 Qg6 Nc7 Kf6 Re1 Qg7 Ne8+ Kg6 Rd1 Kh7 Rh1 Kg8 Rg1 Qg3 Rf6 Qf8 Rd1 Qfd6 Rf1 Qdf4 Rh1 Rc2 Re1 Bf1 Nb5 Bg2 Rh1 Nd3 Rb1 Rc6 Re7 Rc5 Nd7 Rc4 Nc5 Nc1 Rd7 Bd4 Rh6 Bg7 Rf6 Bh6
1q6/1q2QQR1/r1n1p1p1/2P1pPQ1/2r5/2bNnkN1/n2n1R2/1Brbq1BK b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 d5 f6 e5 fxe5 d6 cxd6 Qd2 d5 Qd1 d4 a4 Kf7 c4 Kg6 f4 Kf5 Kf2 Ke4 Kg2 d5 h4 b5 a5 b3 h5 b4 h6 b2 c5 b3 a6 g3 a7 d3 h7 d2 Ra4+ d4 Rh2 Nf6 Bb5 Ng4 Qe1+ Ne3+ Kh1 d1N Qa5 Nc6 Qc7 Nc3 Nf3 g2+ Kg1 Bg4 f5 Qb8 Qd6 Na2 Ra3 d3 Ne1 d2 Nd3 Kf3 Nc3 b1Q Ne2 b2 Ng3 e6 Qc7 g6 Qe7 Bh6 Ra4 Rd8 h8Q Rd4 Qhf6 Rc4 Qff7 Bf4 Rh7 d1R+ Kh2 g1N Rg7 Rf1 Bd2 Qe1 Kh1 b1Q Rb4 Bh5 Rb2 Bg5 Rc2 Qb3 Ba4 Q3b7 Rb2 Bg4 Bc2 Bh4 Bb1 Bg5 Qd7 Bd8 Bc3 Ba5 Bd4 Bc3 Rc2 Qe2 Qde7 Rc1 Nf1 Qe1 Rf2+ Ke4 Qg5 Bd1 Qge7 Nf3 Qg5 Qe8 Qfe7 Nd2 Qf7 Rd8 a8Q Rd6 Qad8 Qg8 Qde7 Qgb8 Rh2 Kf3 Re2 Nc2 Bg1 Ne3 Rh2 Nd8 Ng3 Ra6 Rg2 Nc6 Rf2+
q2Rq3/1n1b4/r1QPrN2/1Q2R2q/1pPbp2B/5bb1/1p6/1KnkrBBN b - - 0 1 illegal: No proof kernel
1N5R/3r2k1/2pN2qb/RpK3Bb/2PP2n1/1q1pnb2/qr1BQB2/b1Q2n2 b - - 0 1 illegal: No proof kernel
3K2QN/n7/bPr3qk/2b5/RBp1R3/p2PqNpQ/b2R3q/qrrn3B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 g5 b4 f5 e4 Kf7 h4 Kg7 e5 a5 b5 c5 h5 f3 Ke3 f2 e6 c3 e7 a3 e8Q a2 b6 c2 Nh3 g3 Bc4 f1Q Qb5 g4 Qc6 g2 Qd6 g1Q+ Nf2 g3 Kf4 a4 Ke5 f4 Rh4 f3 Bb5 a3 Re4 Qfg2 Bc6 Nh6 Qe6 Qe8 Nd3 f2 Qf1 Qg6 Nf4 Q2h2 Qfh3 Nf5 Qg8+ Kh6 d3 f1B Bb7 Bg2 Nd2 Qe3 Nf3 Nc6+ Kd5 Rb8 Bd2 c1R Bb4 Na7 Rb1 a1Q Rb2 Rh7 Rd2 Be7 Bc6 Ba6 Ba8 Rc8 Bc6 Qe8 Ke6 Qg6+ Kd7 Rb1 Bb7 Rc6 Ba8 Bd6+ Kd8 Rhc7 Bb7 Qe2 Ba8 Ne3 Bb7 Nd1 Ba8 Qh7 Ng6 Qe3 Nh8 Qg6 Nd4 Kg5 h6 Bf8 h7 Bh1 Re6 Bd5 Re4 Ba2 Bb7 c4 Ba8 Rf7 Bb7 Rf1 Nf3+ Kf6 Nf7 Bc5 h8R Nf2 Rh7 Rfc1 Nh8 Nd1 Rh5 Bf8 Ra5 Bc5 Qge6+ Kg7 Ra4 Bb3 Ba8 Ba2 Qg8+ Kf6 Rd4 Rc7 Ne1 Kg5 Bh1 Rc6 Re4 Qhe2 Qf5+ Kh6 Nf3 Qh2 Qh3+
b1R4R/5q1B/QP1pkN2/1NBr4/3b2K1/1p1q1nnr/qPbbr2p/QR6 b - - 0 1 illegal: Other
1RR2b2/2B2rn1/1p3NbQ/1PRKbQ1b/pBP2p2/2q3n1/kr2qr1N/4q3 b - - 0 1 illegal: No proof kernel
r1Q3n1/k4R2/rpqbQP2/3R1rB1/b3B1N1/2P2q2/2p2qpN/Kb1N1bn1 b - - 0 1 illegal: No proof kernel
3RNB2/1K1b1B2/1pPR1P1n/1pN5/3qp3/b1Qr1bR1/nrq2q2/2Q2knq b - - 0 1 legal: proof: e4 c5 b4 f5 h4 fxe4 d4 cxd4 b5 g5 b6 gxh4 Qd2 axb6 Qd1 b5 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 g5 h5 c3 e3+ Kd3 b6 g6 e4+ Ke2 Kc4 g7 d5 f5 d3+ Ke1 h3 f6 d4 a5 h4 a6 h2 a7 h3 Ba3 e2 Kd2 e1N Nf3 Na6 Qc1 Nh6 g8R Bd7 Rhg1 h1B Ng5 h2 Rg3 Bf3 Ne6 h1Q Nc7 Nb4 Ne8 Na2 Bc5 Rc8 a8Q Qc7 Qa6 Rd8 Qaa3 Rh7 Bd6 Qc5 Bh3 Rg7 Qab2 Rg5 Be6+ Rd5 Bf7 Ra8 R3g4 Ra3 Qbc2 Rb3 Rg3 Rb2 Be7 Ng2 Bd6 Nf4 Rh8 Ne2 Rhg8 Nb4 Ra8 Na2 Rd8 Ng1 R8g5 Bc6 Re5 Bd7 Re6 Qc7 Ba3 Qc5 Rd6 Be7 Ke1 d2+ Kf2 d1Q Q2d2 Kb3 c4 Qc2 Nc3 Bf8 Na4 d3+ Kf1 Qe3 c5 Kc4 c6 Qf4 Nc5 Qfh4 Qe3 d2 Kf2 d1Q+ Qed2 Q4h2+ Ke3 Qf2+ Kf4 Be7 Re6 Rd3 Ke5 Qde1 Qa5 Qb4 Rd6+ Kc3 Qf1 Kd2 Qa1 Ke2 Qc1 Qbc4 Qc3 Bdg4 Qf4 Kf1 Qc1+ Bd1 Bb4 Bf3 Ba3 Qcd4+ Ke6 Bf8 Kd7 Bg4+ Kc7 Bd7 Kb7 Be7 Qe3 Bf3 Qc1+ Qd1 Re6 Rb3 Na4 Rb2 Bc5 Bd6 Bb4 Bc7 Be7 Bd6 Bf8 Bc5 Rd6 Ba3 Qg5 Qb1 Nc5 Qbc2 Qc1+
2b4b/4nb1k/ppP1b3/Nnr5/1RRpQqr1/2n4N/2PB1B1Q/q2q1B1K b - - 0 1 illegal: Other
Nr3r2/N5bp/1Q1nq3/7p/3nqRbP/b1Q4q/1PbpR1n1/K1Bk2BQ b - - 0 1 legal: proof: d4 b5 a4 bxa4 e4 f5 d5 fxe4 d6 g6 Ba6 cxd6 Bb5 d5 Be2 d4 Bh5 gxh5 Kd2 Kf7 h4 Kf6 c4 Kf5 Kc2 a5 f4 d5 g3 e5 c5 a3 c6 a2 c7 d3+ Kb3 d4 Qe1 Kg4 f5 d2 f6 d1B+ Kc4 e3 f7 e2 Bg5 d3 Kc3 e4 Bc1 a4 Qf2 e1B+ Bd2 a3 Qd4 Qd7 Nh3 Kf3 g4 Ke2 g5 e3 g6 Qe6 g7 Bc2 Rh2+ Kd1 Re2 Nc6 Nf4 Nh6 g8Q Bg7 f8B Rb8 Bc5 Nf5 Nd5 Nd6 Nb6 Bd7 Qd8 Rf8 c8Q Bf2 Qe5 Nd4 Bc1 d2 Qd5 Qh3 Qf3 Bg4 Na8 Bg3 Qb6 Bf4 Rf2+ e2 Qcc7 Be3 Qh1+ e1N Re2 Bg5+ Kb4 Be7 Qc8 Nf3 Bg1 Nd4 Rf2 Ng2 Nc3+ Ke1 Nb5 Kd1 Rb1 a1Q Re2 Qa2 Ra1 Qd5 Qc3 a2 Ka3 Qe6 Na7 Bb1 Qe3 N4f5 Qh2 Nc4+ Kb3 Be4 Rb1 a1Q Qh1 Qa5 Qd3 Qae5 Qc3 Bc2+ Ka2 Bc5 Ra1 Ncd6+ Qc4 Ba4 Kb1 Qee3 Ra3 Bc2+ Ka1 Q3e4 Rf3 Nd4 Qc3 Ba3 Rf4
B5B1/n5qp/2b1Q1P1/2R1q2N/1QqPRn1K/pq1np1r1/k2b4/r1B1N1b1 b - - 0 1 illegal: No proof kernel
KQ3b1q/2b1rRRp/Pp1N2P1/NqB1Qnrn/1Q2B2k/1p1b2rn/n7/8 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 g4 Kf6 f4 d5 a4 e5 c4 e3 Kd3 e2 f5 e1R c5 b6 a5 e4+ Kc2 e3 Kd3 Kg5 c6 b3 f6 h3 c7 h2 a6 Nc6 f7 Nce7 Qe2 Nf5 Nh3+ Kh4 g5 Nf6 Ng1 Nh5 Nc3 Rg8 Qb2 e2 Bg2 Qe8 Ra4 Qb5+ Rc4 Be6 c8Q Ra7 Qa1 Re7 Ne4 Rd1+ Bd2 e1B Ne2 Bg3 Rf1 h1N Qb8 Bc7 Nd6 Bd7 Rf2 Rg1 Be4 Rg3+ Rf3 Bc6 Bb4 Bb7 Bc5 Nf2+ Kd2 d3 Kc3 d2 Nd4 d1Q Nc6 Qf1 Na5 Nh3 Qe1 Qe8 Kb4 d4 Qe2 Qc8 Kb5 d3 Qb2 d2 Qe5 d1N Rf2 Bg7 f8Q Bd5 Rf3 Be6 Kc6 Nc3 Rf2 Na2 Rcc2 Qd8 Kb7 Qb5 Ka8 Bc4 Rf3 Bd3 Rg2 Nh6 Rf7 Nf5 Qd4 Bh6 Qb4 Rg6 Qg7 Qh8 Qe5 Bf8 Rg7 Rge6 g6 Rg5 Rf2 Rg3 Qed4 Re5 Qe3 Nd4 Qe2 Reg5 Rff7 Nf5 Qb2 Be2 Qf6 Bd3 Qe5
BR2KR1r/3B3p/p1B5/1q2n1r1/q1PN1QrP/r4bp1/Qkb3N1/2bqn3 b - - 0 1 illegal: No possible last move
1Bq1n1q1/4b1p1/3Rn3/Pq3b1K/k1N2rB1/Pbn5/3NQp1p/QN1R1rq1 b - - 0 1 illegal: Other
3k2b1/1n2Nrp1/4r1Bp/1K2bb2/1n1R2Rq/3B1PP1/QNn2rpn/qR1Q4 b - - 0 1 illegal: No proof kernel
1n2q3/bBRnkP2/1n1bbp1K/5NNQ/5Q1n/p5B1/1p2q1RP/1rNr1r2 b - - 0 1 illegal: No proof kernel
1b2Bn1r/r1nkbpB1/q4P2/1b2q3/P1np4/3bQ1rN/RRR4p/2K2NQ1 b - - 0 1 illegal: No possible last move
b3n2Q/r1NNp3/p2P1RrR/4k3/1Q1bB2p/1bqn3K/2b1N1P1/2Br2qn b - - 0 1 illegal: No proof kernel
8/3P4/BK1bQ2R/2rb1NQR/1p1r1qp1/br2q3/pn1BqRbP/nN5k b - - 0 1 illegal: No proof kernel
1n4Q1/kRNPn1K1/r1QR4/2p2pB1/1b3qn1/1bP2pqn/5N1q/3R1Brr b - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 Kf2 Kd7 Ke3 Kc6 Kf4 Kb6 Ke5 h5 g4 f5 a4 h3 d4 h2 a5+ Ka7 c3 b5 d5 h4 d6 h3 g5 b3 a6 b2 g6 b4 g7 b3 Bh6 Be6 Na3 b1Q d7 b2 Bd3 Qa2 Bc1 b1R Bb2 Bb3 Kd4 e5+ Ke3 e4 Kf4 e3 Ke5 e2 Bc1 Bb4 Bg5 Ne7 Kf6 e1Q g8Q c5 Bf1 Qg3 Kg7 Qdc7 Qdd5 Qcf4 Qc6 Rc1 Rb1 Qb2 Ne2 Qbd2 Rg1 h1N Rb2 Rd1 Nc1 h2 Nd3 Nf2 Rh1 Nh3 Nf2 Qdd6 Rd2 Qc7 Rd6 Rc1 Rg1 h1N Qf7 Qg2 Ne4 Qe3 Bc4 N1f2 Nf6 Ng4 Rd2 Nhf2 Qg8 Qcg3 Ne4 Qef4 Rd6 Rh1 Bb5 Nh3 Nf2 Q2h2 Bc4 Re1 Bd3 Re3 Rd1 Ree1 Bb5 Reg1 Bf1 Bd5 Nc4 Bf7 Ne3 Ba2 Nd5 Bb3 Nc7 Nh6 R6d3 Ng4 Qa4 Kb6 a7 Nbc6 Rd6 Rb8 a8R Rf8 Ra7 Ra8 Ra5 Ra6 Rb5+ Ka7 Rb6 Nb8 Qc6 Nf6 Rb5 Ng4 Rb7#
3n3N/1q1pn1q1/pbB2BkB/4r1P1/2Q5/RN1p1bQ1/K1P3br/n2qq2R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 f5 e4 Kf7 g4 h5 b4 d3 Kc3 a6 Kb2 h3 b5 h4 b6 f3 e5 h2 g5 f2 e6+ Kg6 e7 a3+ Kb3 f4 b7 a2 Qf3 h3 Qe3 f3 Bg2 f1B Ne2 f2 Qf3 Nc6 b8B Bb7 Nec3 Qb6+ Ka3 Nd8 Qg3 Qf6 Bf3 Qg7 Bc6 Bg2 Be5 f1Q Nb5 Qe1 Bf6 Rh5 Nd6 Rb8 Bb5 Bbf3 Bc6 Rb5 Nf7 Re5 Nd2 Qd1 Kb2 Rh6 e8Q Bc5 Kb3 Bb6 Qe6 Ne7 Qc4 Rh5 Bb2 Rh4 Rc1 a1N+ Ka2 Rh6 Nb3 Rh5 Rf1 h1Q Ba3 h2 Bc5 Nd5 Bf8 Ne7 Rb1 Qg1 Rc1 Qe3 Rh1 Qee1 Rb1 Qh7 Bh6 Qg7 Nd2 Rh3 Rb3 Rh4 Ra3 Rh3 Rg1 h1Q Nb3 Rh2 Rf1 Qe4 Re1 Qg1 Rf1 Qge3 Rh1 Qee1 Ba4 Qa8 Bc6 Qb7 Nh8+
r1N4r/2P1R2B/k1Nqqp2/2QbB1q1/p1R2Pn1/Q5bb/K4n1p/B1b4r b - - 0 1 legal: proof: e4 b5 b4 c5 h4 cxb4 a4 bxa4 e5 g5 e6 gxh4 Nc3 dxe6 Nb1 e5 Bb2 e4 Ba3 Nh6 Bc1 Ng8 f4 Kd7 c4 Kc6 d4 Kb6 Kd2 h5 Kc2 e5 Kb2 a5 g4 b3 g5 f6 d5 h3 d6 h4 d7 e3 g6 e2 c5+ Ka6 g7 e4 c6 h2 c7 h3 Nc3 e3 Kb1 b2 Ra2 a3 Qe1 a4 Qd1 Nc6 Qd5 Ne5 Ne4 Nd3 Qc5 e1B Nf3 e2 Nd6 Nh6 g8Q Bg3 Qb3 e1Q Nd4 Qe6 Nc6 Ng4 Bd2 Qde7 d8B Bb7 Nc8 Q7d6 Rg1 h1R Bc3 h2 Rg2 Be7 Re2 Ndf2 Ra1 Bf8 Ka2 Be7 Rc1 b1B+ Ka1 a2 Qba3 Bf8 Be7 Be4 Be5 Bg2 Rc4 Bh3 Kb2 Bg7 Bg2 Bf8 Be4 a1Q+ Kc2 Qg1 Kb2 Rh4 Ka2 Rh8 Ba1 Qg2 Bc2 Qgd5 Bh7 Qg5 Na5 Bd5 Nc6 Qdd7 Bd6 Qde7 Bde5 Q7d6 Bed4 Qdd7 Qc3 Qee7 Qd6 Qed8 Re8 Qe6 Qe3 Qdd7 Be5 Qd8 Qb4 Bd6 Qbb3 Ba3 Re7 Qdd6 Qc5 Bc1 Qba3
1r1RNB2/K1prkQ1r/np4RQ/2nb2PB/pP1n2rb/7Q/q1N1b3/1q6 b - - 0 1 illegal: No possible last move
R1qnn1BQ/np2K3/5rP1/8/R1r4Q/p1r1NPpN/3bR2b/2Bqr1kb b - - 0 1 illegal: No proof kernel
q5B1/Pr1n1bQ1/pNrpkRq1/1n6/6B1/P1p1bq2/R5rN/K3nBqQ b - - 0 1 illegal: Other
n7/pR1bNBr1/nb1n1K1B/3q1Q2/bQN2PP1/p2pq1kr/r7/4n1RQ b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 c4 Ke5 b4 Kf4 b5 d5 b6 e5 b7 h5 f3 e3+ Kd3 a3 c5 e4+ Kc2 h3 c6 d3+ Kc3 h4 Kd4 h2 c7 d2 Qc2 d1B Qe2 h3 Ra2 Nf6 Nc3 Nfd7 Bd2 Ba4 Bc1 Na6 b8Q Nb6 Qd2 Bcd7 Rc2 Kg3 Ke5 d4 c8Q d3 f4 e2 Rb2 e1Q Qe2 e3 Nf3 Bc5 Qd1 e2 Nd2 Rg8 Rb5 Rg7 Nd5 Qg8 Qd6 Rb8 Ne7 Qd5+ Kf6 Na8 Bb2 Bb6 Bg2 Rb7 Rg1 h1N Nc4 h2 Qb4 Nf2 Rf1 h1R Be4 Qd2 Bg6 e1N Bf7 Qe3 Ba1 Rh3 Qf3+ Kh2 Qh1+ Kg3 Bb2 Bc6 Qf5 Bd7 Rc5 Rb8 Rc7 Rc8 Rb7 Rc7 Nd6 Rc2 Be5 Ra2 Nc4 Rgh7 Kg6 Ne4 Bg7 Nd6 Bh6 Rg7+ Kf6 Qa5 Rc7 Qac5 Rb7 Qd5 Rg1+
R2Kb3/p7/1nr1kp2/p2nr3/Q3P1BN/Brnq1NqP/2bQ4/2bNR2b b - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 cxd4 a5 e5 a6 exf4 Nf3 bxa6 Ng1 a5 Kf2 Ke7 e4 g5 c4 d5 b4 f3 Kg3 d3 b5 f6 h3 d2 c5 f2 c6 d4 c7 d3 b6 Bd7 c8N+ Ke6 b7 Bh6 Qf3 d1B Ba3 d2 Qe3 Bc2 Bb4 d1N Bc3 Be8 Ra4 Qd3 Bb2 Nd7 b8Q Ne7 Nd6 Nd5 Qc8 N1c3 Ba3 Rb8 Qc4 Rb3 Be2 f1B Nf5 Bg2 Nh4 Nb6 Rb4 Rh7 Bf3 Rc7 Qd2 Rc6 Qb5 Ke7 Qa4 Ke6 Rh2 Bh1 Re2 Bf8 Re1 Bc5 Qf4 Be3 Be2 Bd2+ Ngf3 Bc1 Qd2 Nc4 Rb8 Ncb6 Kf2 g3+ Kf1 g4 Ra8 g2+ Kf2 Nb4 Kg3 g1Q+ Kf4 g3 Bd1 g2 Be2 Kd7 Kf5 N4d5 Bd1 Qh2 Be2 g1R Bd1 Na2 Nc3 Rg6 Be2 Qg3 Nd1 Rg7 Ng1 Nac3 Bg4 Rf7 Kg6+ Kc7 Ngf3 Re7+ Kh6 Re5 Kg7 Rf5 Kg8 Kd7 Kf8 Ke6 Ng6 Bf7 Ngh4 Bg6 Bh5 Re5 Bg4+ Bf5 Bh5 Bh7 Ke8 Bg6+ Kd8 Be8 Bg4+
7b/p2r2p1/kR2BQ2/4qP2/2N4q/p1BqPN1N/bnQRn2b/1rr3bK b - - 0 1 illegal: Other
rB6/p1p1N1kb/P2q2nP/6Bq/rQ1q1pRn/5Q1n/RB1b4/1K1n1rN1 b - - 0 1 illegal: No possible last move
KbQ2Rk1/1B2nr2/4nB1p/3P2qr/1r1p2RN/6N1/Qpb2r1P/1r1br1B1 b - - 0 1 illegal: No possible last move
2Q1r1k1/b1nRB2b/2bpQN2/2bRpr1Q/2K3N1/Pn2Prp1/1q3b2/2B1b3 b - - 0 1 illegal: No possible last move
rq3n2/2np1NR1/2b2Pbb/b2Qp1br/k2PpRKN/B7/Q2r4/BR3b2 b - - 0 1 legal: proof: g4 c5 e4 h5 b4 hxg4 e5 cxb4 e6 a5 c3 a4 Bb5 fxe6 Bf1 e5 Bc4 e4 Bb3 axb3 Ke2 g5 h4 b2 f4 g3 a4 g4 f5 g2 c4 b3 h5 g3 d3 Nf6 c5 Bh6 c6 Nh7 f6 Nf8 a5 Na6 Bf4 Nc7 Nc3 b1B a6 b2 Nf3 g1B a7 g2 Bh2 Bb6 Nb5 g1B Ra3 Bge3 Be5 Ba5 Nh4 Beg5 Ra4 Bc2 Bd4 b1R Ba1 Rb2 Rd4 Kf7 Nd6+ Ke6 Nf7 Ba4+ Qd2 Rc2 Rb1 Rb2 Rc4 Kd5 Kf2 e6 Kg3 Ra2 Qd1 Rd2 Kg4 Bb5 Ra4 Kc5 Qb3 Kb6 Qa2 Ka6 d4 Qe8 Ra3 Bf1 Rf3 Qd8 Rf4 Qe8 Bb2 Kb5 Qd5+ Ka4 Ba1 Rb8 a8Q Rh7 Qa6 Ra8 Rb3 b5 Rb1 e5 Qa7 b4 Qa6 b3 Qa7 Na6 c7 Bb7 c8R b2 Rc3 Rh8 Rg3 Nc7 Qa6 Bc6 Rg2 Bg7 h6 Qb8 h7 B7h6 Rg3 Rg8 h8B Rg7 Kh5 Rh7 Bg7 Rh8 Kg4 Rh7 Rc1 b1B Rg1 Ba2 Rb1 Ng6 Bf8 Rh8 Bc5 Nf8 Ba3 Bb3 Kf5 Bd1 Rg2 Bh5 Qa7 Bg6+ Kg4 Bg7 Qa6 Rh5 Rg1 B7h6 Qe2 Rd3 Qea2 Rd2 Rc1 Bh7 Rb1 Bf5+ Kg3 Bh7 Rg4 Be3 Rg7 Bg6 Rg2 Rd1 Rf2 Rd2 Kg4 Beg5 Rf4
1b6/p2nq1Q1/1b1B1R2/pr1PPRbB/1RkN2Q1/1b5r/1KNp1bn1/1n1b4 b - - 0 1 illegal: No possible last move
2k1K1nB/Q1qN1n2/1R4r1/1pbbn1p1/2n3P1/2q1PnnQ/3p1RNB/3Rr3 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Kd2 h3 Bg2 hxg2 Ke1 exf6 Bg5 f5 Bc1 f4 Kf2 b5 Kf3 g5 Ke4 f5+ Kd5 f3 h4 b3 a4 d3 c4 d2 e3 f4 h5 b2 g4 f2 a5 f1N a6 f3 c5 f2 a7 Qc7 h6 Kd8 h7 Nh2 c6 f1N Ra4 Nf3 Re4 Bb7 Nc3 b1N Nge2 g1N Na4 Bc5 Rf4 Na3 Bb2 Kc8 Be5 Ng3 Qf1 Nc4 Qh3 d6 Ke6 d1Q Rf5 d5 Nf4 d4 Ng2 Nd7 Kf7 d3 Ke8 d2 Rf6 Rb8 a8Q Qc1 Qa7 Qc3 Bd6 Nfe5 Rf2 Ngf3 Rd1 Nf7 Bf4 Bd6 Nc5 Nde5 Nd7 Be7 Qa5 Bc5 Qa7 Q7a5 c7 Bd5 Rc1 Rb6 Rd1 Nf1 Bh2 Rg6 Qb6 Qa7 Qa5 Ng3 Qa1 Kb7 c8R Qaa5 Ra8 Qc7 Ra6 Kc8 Rb6 Qb3 Qh6 Be4 Bg1 Bd5 Qa7 Qc3 Qh5 Rh6 Qg6 Rh1 Bh2 Re1 Qh5 Ngh6+ Nf8 Rg8 h8B Rg6 Nd7 Ng8 Qh3
8/kRB1n3/5rp1/2rQ1QPP/pr3R2/rBnqn1K1/p2bN2r/1Bn1Nb2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 g5 cxd4 Qd3 e5 Qh3 exf4 Qg4 hxg4 Kf2 d5 e4 Kd7 c4 Kc7 h4 Kb7 b4 f5 c5 a5 c6+ Ka7 c7 f3 b5 f4 e5 g6 e6 d3 e7 d4 e8Q g3+ Ke1 d2+ Kd1 g2 Na3 f2 Ke2 d1R Kf3 d3 Qe7 d2 Qg7 Nd7 Qe5 Bb4 Ra2 Ba6 c8B Ne7 Qe1 Ne5+ Ke4 f3 Kf4 Qd3 Nc2 a3 Ne2 g1R Rb2 a2 Bf5 a4 Bg2 f1N Qf2+ Ne3 Ne1 Rac8 Kg3 Rc5 h5 Rb8 Rh2 Rh1 Rh4 Rh2 Rf4 Bc3 Qf1 f2 Bd5 Rb7 Qg2 f1R Bb3 Rb6 Qd5 Rf6 Rb4 Rf4 Rb1 Rfh4 Rf4 Bb4 Ba3 Rdc1 Be4 d1N Bb2 Nc3 b6+ Kb8 b7 Ka7 Bf5 Ba5 Rf2 Rb4 Rf4 Qd1 Bfc2 Nd3 Ba3 Bb5 Rb2 Bc4 Bb1 Rc2 Qf5 Nc1 Qd5 Qd3 b8Q+ Ka6 Qc8+ Ka7 Nd4 Rcf2 Ne2 Bb5 Rh4 R2f4 Qcf5 Rfe4 Rf4 Rec4 B3c2 Rb3 Bb4 Ra3 Bb3 Ncd1 B3c2 Bd7 Qfe5 Bh3 Qf5 Bf1 Bc3 Re4 Be5 Bd2 Bc7 Nc3 Rb5 Rd4 Bb3 Rb4 Rb7+
k1n2nN1/bQ4B1/5pN1/1Rn4b/2rqBpr1/1nP1pn1P/1BbR4/1b2QK2 b - - 0 1 illegal: No possible last move
n1Q1b3/q2BK2b/p1P5/b3Rb2/kQnpb2n/p1Qn1rRN/P2r4/B2N4 b - - 0 1 legal: proof: f4 b5 h4 e5 d4 exf4 d5 g5 d6 gxh4 Qd3 cxd6 Qf3 d5 Qb3 d4 Qa4 bxa4 Kd2 d3 Kc3 d5 Kd4 Kd7 Ke5 Kc6 c4 h5 g4 f5 e4 d2 b4 d1B g5 f3 g6 h3 c5 f2 g7 a6 Bc4 f1B Bf4 d4 Bf7 Kb5 c6 a3 Bc4+ Ka4 b5 h4 b6 h2 b7 h3 Be6 Bd3 Bd7 Bb4 Ke6 Ba5 e5 Nh6 g8Q Qb6 Qg3 Qa7 Bd2 f4 Qf3 Nf5 Qg3 f3 Bc3 f2 Bb2 f1N Nc3+ Kb4 Rb1 Bh5 Re1 Nd2 Nd1 Nc4 Ba1 Ka4 Qe3 Bc2 Qc3 Rg8 Re3 Rg2 Rg3 Nh4 Kf6 Rd2 Bf5 Nd7+ Ke6 Ndb6+ Kf6 Bf7 Bg4 Bh7 b8Q Bce6 Qd6 Rf8 Qc5 Na8 Bf5 Bd7 e6 Bc8 e7 Bd7 e8Q Bfe6+ Qf7 Be8 Nf3 Bc8 Re1 h1N Ng5 h2 Re5 Nf2 Nh3 h1B Be6 Bcd7 Ke7 Nd3 Qf5 Be4 Qg4 Rf3 Qg8 B8g6 Qc8 Bde8+ Bd7 Bgf5 Q5b4+
3brqQ1/n1n2R1p/2RpR3/2Bb1P2/1Q2B3/PNK1p3/b3brkq/N1b3b1 b - - 0 1 illegal: No possible last move
n2kbR1n/n1pQNQnb/3PBr2/b1r1B2q/Q1pKbR2/7N/2Ppb3/8 b - - 0 1 illegal: No proof kernel
r1k1B1QK/bpN2BRR/4P3/2n2p2/bBr3bN/3P4/bq1Qp1b1/4rr1n b - - 0 1 illegal: No proof kernel
Q2k2K1/Bp2q2r/2Pb2Nr/p1r2Q1R/2r1bP2/q6Q/1n1pN2R/n2Br1r1 b - - 0 1 illegal: No proof kernel
r1bR1Nb1/pBk1bpqN/3Qp2b/5rn1/n2B4/1P3P1Q/n2R4/1b1R1K1n b - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 b5 d4 bxa4 d5 c6 Kd2 cxd5 Ke2 dxe4 Ke1 e3 c4 h5 g4 d5 c5 Kd7 b3 e2 g5 e6 g6 d4 g7 d3 Bh6 h3 Nd2 h2 Ne4 h4 Qb1 a3 Qb2 a2 Qf6 h3 Nd6 Bb7 Ne8 Ne7 g8R Nbc6 Ng7 Nc8 Nh5 Nb4 Bf4 Be7 Ng7 Qf8 Nf5 Nb6 Rc1 a1B Nf3 Na4 N5h4 Na2 Ng6 Rh5 Qh8 Bg7 c6+ Kc8 Rg1 h1B c7 h2 Ng5 Bhe4 Bg2 h1N Be3 Kd7 c8Q+ Kd6 Ne5 Bh7 Rc2 Ba6 Qc4 Bc8 Ng6 Kd7 Qf4 Kd8 Nh3 Rf5 Ng5 Kd7 Bb7 Kd8 Kd2 e1N Bd4 Nf3+ Ke3 d2 Ke2 Kd7 Rd1 Kd8 Kf1 Kd7 Re1 d1B Rd2 Bc2 Red1 Bb1 Qe5 Kd8 Qc5 Kd7 Qb4 Kc7 Qa3 Ng1 f3 Nh3 Qb4 Bh6 Qa3 Qg7 Rd8 Bg8 Qh7 Nb2 Nf8 Na4 Ne4 Bhg5 Nf6 Be3 Qh5 Bh6 N6h7 Ng5 Qh3 Bd7 Qb4 Bc8 Qd6+
K5b1/pn1P4/2Bn1R1B/2RpBb1k/2N2n2/4Qp2/Prb1bNr1/2qnbQ2 b - - 0 1 illegal: No proof kernel
3Q2NK/1r1kq1N1/1pnPr3/1b1R1R2/2nB1b2/p1Qn1P2/2brp1r1/B3nB2 b - - 0 1 illegal: No proof kernel
b6K/r1b1Rp1R/2r3rr/npk1n1BN/BP5q/Q3bpP1/3Q1b2/n1R1N3 b - - 0 1 illegal: No possible last move
5QnR/1n1r1p1P/B4B2/2Rrb2p/2K2N2/q4rN1/nb1rpPQQ/kb5n b - - 0 1 illegal: No proof kernel
3nRr2/n2Npr2/1r1pk2K/1bb2pQb/b1R5/r1N3P1/P2n2q1/QNB4B b - - 0 1 illegal: No proof kernel
2Rn1b1K/2b1p1PP/3Q1Q1B/Bk2np1p/3N2R1/3r3r/1Nn1q1r1/b4brB b - - 0 1 illegal: No proof kernel
1Kb5/1bPNR3/1rR4r/1Q1qrr2/4pN2/3b2pn/nbp1B1P1/nQ2B1Nk b - - 0 1 illegal: No proof kernel
n2QrR1b/1RP1bb1K/knB1p3/q1r2nNP/7B/2Rp1b2/2pnQ2r/3N4 b - - 0 1 illegal: No proof kernel
2n1r1R1/bnP1rrp1/BN1q2Q1/2p3BQ/1r2p2b/5b2/1n3P1k/RKN1R2n b - - 0 1 illegal: No proof kernel
b4n1b/N1qB2PN/QQ1R1pPr/8/K5pr/br1b2BR/1r3qnp/1k1R4 b - - 0 1 illegal: Other
2r4N/qn3P2/Q5pN/1r1rn2p/KpR1nbBr/3R1RkP/b1n5/B3qQ2 b - - 0 1 illegal: No possible last move
Q4KR1/2BpN3/1p1PpbbB/7r/Q1nNq2Q/2bPqq2/1Rr5/knb3q1 b - - 0 1 illegal: Other
N5N1/r1n2QR1/4bp1n/1RrpbQpK/q1q4P/1P4BB/1p6/b1q1krB1 b - - 0 1 illegal: No proof kernel
R3Q3/bNq1bq1p/npRQ2N1/1Bppn3/1P1r4/1P1bk2K/2n2q2/R1B3r1 b - - 0 1 illegal: Other
1q1qr3/bR2bQpn/P2rQp1p/n7/2pQnkB1/5q1b/1P1RN2B/1K1N4 b - - 0 1 illegal: No proof kernel
1Nb2N1n/R4pK1/b1Q1P3/5q1r/1b1p1NRq/p1n1k1qn/1rBP1p2/3QB3 b - - 0 1 illegal: Other
N3BNn1/2Kpbn2/3Br2q/5p2/kP2B1p1/b2pnP2/rq2b2r/1R1Q1Q1R b - - 0 1 legal: proof: d4 b5 a4 bxa4 Qd3 c5 Qd1 cxd4 g4 e5 g5 e4 Qd3 exd3 g6 hxg6 Na3 g5 Nb1 g4 Kd2 f5 h4 a5 c4 g5 e4 g3 b4 g2 f3 a3 c5 a4 e5 g4 h5 a2 h6 a3 h7 Bb7 e6 Ba6 c6 Ke7 c7 Kd6 c8Q Be7 Qc2 Qf8 Nh3 g1R Nc3 Kc6 Nd5+ Kb5 Ng5 Nc6 Rb1 a1Q Qd1 a2 Nb6 Qh6 Bb2 Re8 Na8 Ne5 Bc3 Rg2+ Be2 Bf6 e7 Nf7 Qf1 Ka4 Bb2 Rb8 e8B Rb6 Bc1 Re6 Bb2 Re3 Ne6 Be7 Nf8 Rf2 Kd1 d2 Kc2 Bb5 Bd3 Re6 Be4 Be2 Qd1 d3+ Kc3+ Kb5 Qf1 d1N+ Kd4 Ka4 Kd5 Rg2 Bg7 Qb2 Be5 a1B Bd6 Ne3+ Kc5 Qa3 Kb6 Bb2 Kc7 Qc3+ Kb7 Ba3 Kb6 Qb2 Kc7 Nf6 Ng6 Rh2 Nf8 Rg8 h8Q Rg6 Qg7 Ng8 Qc3 Rgf6 Qd2 Rg6 Be5 Ra6 Qde1 Rge6 Bd6 Rc6+ Kb8 Rc2 Nh7 Qc3 Nf8 Ra2 Kb7 Qch8 Kc7 Qb2 Qd1+
brB2r2/1nPQ4/2r1N1pp/1bQ3q1/qN2p3/R1p2nk1/K1nbP2R/4QB2 b - - 0 1 illegal: No proof kernel
Rn1rr3/2pb1B2/1k2bN2/q2r2p1/2q1PpBR/1qQ3P1/2pb1QK1/1Qn4N b - - 0 1 illegal: No extended proof kernel
nnB5/1rp3N1/1n1Rr2B/K1b2pQ1/N1QR1bpq/P5kb/2p1rQP1/1q6 b - - 0 1 illegal: No proof kernel
2Q2b2/2pPQnpp/2B1rB2/1N1q3P/k4q1N/pr1q2N1/R2b3K/1Rnb3n b - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 f5 e6 Na3 exf5 Nb1 fxg4 Bg2 g3 Bh3 Ba6 Bf1 Bc8 d4 Kd7 h4 Kc6 b4 Kb5 e4 f5 h5 a5 d5 a3 d6 g2 Kf2 a2 Kg3 a4 e5 a3 e6 f4+ Kh3 f3 Qc2 f2 Kg3 Nh6 e7 Ng4 e8N Ra6 Qc3 Nc6 Qe1 Nce5 Bd2 Ka4 b5 c3 b6 c2 b7 c1N b8Q Nf7 Ne2 g1Q+ Bg2 f1Q Bg5 Nf2 Bf6 Bg4 Qc8 Rg8 Rh2 Qh1 Nd2 Rb6 Nf3 Rb3 Rb1 a1B d7 Bc3 Nh4 Bd2+ Bc3 Qf6 Nd6 Qd4 Ba8 Qhd5 Nb5 Q4c4 Rg2 Qcd3+ Kh2 Nh1 Ng3 Bd1 Bc6 Qf4 Bb2 Bc5 Bf6 Re8 Qe3 Bf8 Qc5 Re6 Qe7 Ba5 Rc2 Bd2 Ra2
2B2N1k/QpBbK1p1/1bP2RQ1/n1NRQ1p1/br2nqn1/5r1P/3q1p2/1r6 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h6 g5 hxg5 f6 exf6 Na3 f5 Nb1 f4 Kf2 f5 Kf3 Kf7 c4 d5 e4 b3 a4 b2 c5 d3 e5 d2 e6+ Kg6 e7 Kh7 e8Q d4 a5 d3 a6 Nf6 a7 Ng4 Qc2 d1N Nc3 b1R Ra6 d2 Na4 Nc6 Bh3 Nc3 Qe5 d1B+ Ne2 Na5 Rf6 Bd7 c6 Ne4 Nc5 Rb8 Qd3 Ba4 a8Q Bd6 Qc2 Bc7 Qa7 Bb6 Nd4 Re8 Rd1 Kh8 Rd3 Rf8 Ba3 Ra8 Nde6 Rb4 Rd5 Rf7 Ke2 f3+ Kd3 f4 Nf8 f2 Bc1 f3 Bf4 Rb1 Kd4 f1Q Qd3 f2 Qc2 Qc1 Bg3 Nc3 Qg6 Ne4 Bf4 Nh6 Be6 Ng4 Bg3 Qf4 h3 Be8 Bc8 Bd7 Bh2 Qc1 Re6 Rf3 Rf6 Qf4 Rdd6 Rb4+ Kd5 Be8 Ke6 Rb1 Rd1 Qdd2 Ke7 Rb4 Bf5 Rd8 Bc8 Rdd4 Qef5 Rb1 Qe5 Rdb4 Bg3 Bd7 Bh2 Qa2 Rd5 Qad2 Qc3 Qf5 Bc7 Qff4 Qe5
2KBN3/Pr2Nbqp/BQp5/b4P2/n2pkRp1/B1r1rq2/1Rn5/Q1q1n3 b - - 0 1 illegal: No possible last move
r1qB2n1/p2p2QK/pbPP1Rp1/B5k1/1R4N1/q1Br1N2/2b3Q1/3nbqn1 b - - 0 1 legal: proof: f4 h5 b4 e5 a4 exf4 g4 hxg4 b5 c6 a5 Rh5 a6 bxa6 b6 Re5 Bg2 Rh5 Bd5 Rh3 Bc4 Rh8 Bb5 cxb5 Kf2 Ke7 c4 Kf6 e4 g6 d4 f3 Ke3 f2 Kf4 f1N h4 b4 b7 b3 d5 g3 h5 b2 h6 g2 c5 Qe7 h7 Qe8 d6 Ne3 e5+ Ke6 Kg5 f5 Nd2 b1Q Rh4 f4 Ne4 f3 Nf6 f2 Rb4 f1Q Nf3 g1B Bd2 Qbd3 Qc2 Bg7 Ng4 Nc6 b8B Nd1 Bc7 Bb7 Bd8 Nd4 Bc3 Bd5 c6 Bb3 Qg2 Ne2 Raa4 Be3+ Rf4 Bd4 Bca5 Bb6 Rab4 Ng1 Rf7 Bc2 Rf6+ Kd5 e6 Qa3 e7 Qf8 Rff4 Bc3 e8Q Be1 Qe7 Qe8 Qg7 Ke6 Bf6 Qc8 Bd8 Ne7 Kh6 Re8 h8B Ng8+ Kh7 Rf8 Rfe4+ Kf5 Re6 Re8 Re2 Re3 Rf2 Rd3 Qe7 Ba4 Bc3 Bc2 Qg7 Ne7 Nfe5+ Kg5 Rf6 Ng8 Nf3+
1K1b3N/1p2Q3/b1p1p3/n3QPnB/3k4/P3b1NR/rrqp2rb/3bRQB1 b - - 0 1 illegal: No proof kernel
n6k/2r1nb2/rPnp1K2/b3B2b/1P3p2/1bNpQqr1/2pB4/1RQN1BR1 b - - 0 1 illegal: Other
k1B1N3/b1n2pn1/1prn4/1P1n2rN/1QNRPB2/q4pb1/Q1bKpR2/1r6 b - - 0 1 illegal: No proof kernel
k1qBr1nb/Qp4p1/Q2K4/Rp1n2b1/5BR1/1PN1b2b/1p2Pn2/NN1r3r b - - 0 1 illegal: Other
B2rq2Q/3q1kR1/n1p1R2p/3q2q1/2pPn2B/2b2qrp/KPB3QN/2N2b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 g4 f5 d4 a5 Kd2 h6 Kc3 f3 e4 f4 g5 a3 e5 f2 e6 a4 e7 f3 g6 a2 g7 c6 Kc2 a3 Bf4 Bh3 Qd3 Qd7 Nd2 Nf6 g8B Ne4 Bd6 Na6 Qe2 Rd8 Bh7 Kf7 Bg3 Rg8 Re1 a1Q Nb3 a2 Nc1 Rg5 Bg2 f1Q Rh2 f2 Nf3 Qh1 e8Q+ Kf6 Qf1 Bb4 Qh8+ Kf7 Bf5 Qe8 Bc8 Bc3 Bb7 Qg1 Qe2 f1Q Ba8 Rg6 Bf2 Rg3 Bh1 Qd7 Rg2 Qd5 Nh2 Qb1+ Kd1 a1Q Qg4 Qba2 Kc2 Qd7 Re2 Qa5 Be1 Q1a3 Kb1 Qad5 Re3 Qf8 Ka2 Qf3 Ree2 Nf6 Re6 Qfe8 Qe4 Qge3 Rg1 Qef4 Qe2 Bf1 Qg2 h3 Bf2 Rg4 Bh4 Qfg5 Qf2 Qff4 Be4 Qf3 Bc2 Rg3 Qe2 Ne4 Qg2 Bd3 Re1 Bf1 Rg6 Nf6 Re6 Ne4 Rg7+
n7/4ppK1/qkRb1P1P/2r1B1N1/1q1Q1R2/bQn2pN1/2bp1RbB/r4b2 b - - 0 1 illegal: No proof kernel
2b1QQ2/rp1BrPn1/4R1pp/2Rr4/qkp1rb2/3NB3/P3KNqr/3R3n b - - 0 1 illegal: No proof kernel
b1Q1n1qn/5B2/4bRQ1/2r1b1N1/1P1pbN1K/kp1Qp3/pB1P3n/1Rr4q b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 h5 bxa4 h6 c4 Qg4 gxh6 Qg5 h5 Qe3 h4 Qb3 cxb3 g4 h5 c4 a5 f4 e5 Kf2 d5 g5 Kd7 g6 Kc6 c5 e3+ Kg2 d4 g7 h3+ Kg3 h4+ Kf3 a3 f5 a2 Kg4 h2 Nf3 e4 Bc4 h3 Na3 a4 Be6 e2 f6 e1N f7 e3 Ng1 Nf3 Ne2 Na6 Nc3 Nh6+ Kh5 Nc7 g8Q Ra5 Bc4 Bd6 f8Q Nf7+ Qh6 Ne8 Rg1 h1B Qf8 h2 Bb2 Be6 Nab5 a3 Rac1 a1Q Rb1 a2 Nc7 Be5 Ne2 Rg8 Qg6 Nh8 Rgc1 Qb8 Qd3 Rg1 Qf7 Rd1 Rc2 Rc1 Qfg6 Bg2 Rc3 h1B Nf4 Nh2 Kh4 Be4 Rc2 Ng7 Rc3 Qg8 Rc2 Ne8 Rc3 Kb7 c6+ Kb6 Bd5 Rc5 Bc4 Bh3 Nce6 Bg4 Ng5 Be6 c7 Ba8 Qc2 Bhe4 Qd3 Kc6 Bd5+ Kb6 Rc4 Kb5 c8Q Ka4 Rc2 Rb5 Rc6 Rbc5 Bc3 Ka3 Rb6 Bg4 Rf6 Be6 Bc4 Qb2 Bd5 Qc2 Bc4 Qd1 Ba1 Qh1 Bd5 Bh3 Bf7 Be6 Bb2+
QR4q1/r2QQnR1/1N1q2b1/1K1PBbbr/4p2P/4p1pB/b1pn2k1/3r1N2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 h4 Ke6 a4 Kf5 d4 c5 f4 b5 d5 e5 a5 g5 a6 e3 a7 Ke4 f5 g3 f6 g4 f7 b3 Qd2 b2 Qa5 g2 Qc7 b4 Ra4 c3 Qc6 c4 Qd6 b3 Ra3 c2 Nh3 g1Q Qc6 c3 Nf4 Nd7 Qe6 Nh6 Ra1 Nf6 Bd2 c1R Nh5 Be7 f8Q Rd1 Bh3 Nf7 Na3 b1B Nc4 b2 Nb6 Ba2 Rb1 Qd6 Ng3+ Kf4 Kd3 Kf3 Rh2 Rh5 Qd7 Ne4 Nf1 Bg5 Qfe7 Qg3 Rh1 Kf2 Rg1 Kf3 Qc6 Bf5 Qcd7 Bg6 Rc1 b1B+ Rc2 Rb8 a8Q Rb7 Rg2 Ra7 Rg1 Bb3 Rg2 B1a2 Rb2 c2 Rb1 Ba4 Rb3 Bc6 Kc4 Bb7 Rg1 Bc8 Bc3 Nd2+ Kb5 e4 Be5 Kf2 Qdc6 Bcf5 Qcd7 Nb1 Rc3 Nd2 Rc8 Qf4 Rg8 g3 Bg4 Qb8 Rg7 Qg8 Nh2 Ra1 Rb1 Kg2 Rb4 Rd1 Nf1 Rb7 Rc4 Ra7 Rc8 Kg1 Rb8 Kg2 Bb2 Qc7 Be5 Qd6 Bh3+
4q1bN/3n2Bb/3P2Q1/1q1n1rb1/2R1p2p/pRBpQrPr/2B5/r1N1K2k b - - 0 1 illegal: No proof kernel
KQn4n/4NB2/B1P1R2b/1q1Bp1pn/4N2b/r3Pbqp/1Q1p4/k3bRr1 b - - 0 1 illegal: No proof kernel
qn1n3b/7B/N1PnRB2/1p3Pp1/1prQ4/2k1pr1N/KNq3b1/2Rq1Q1n b - - 0 1 illegal: No possible last move
1n2r2k/RRK4p/Nr2pn1q/3B1pn1/Pq2pR2/1B2bP1r/b1N1Q2n/5Q2 b - - 0 1 legal: proof: h4 c5 e4 a5 b4 d5 h5 dxe4 h6 a4 Be2 cxb4 Rh5 a3 Bb2 axb2 Bf1 gxh6 Rh2 h5 Rh1 h4 Ke2 b5 Ke3 f5 Kf4 Kf7 Ke5 Kg7 g4 h3 d4 h2 c4 b3 c5 b4 c6 Ra4 g5 Qe8 g6 Ra5+ d5 Ra8 c7 Qc6 d6 Ra6 f3 Nf6 d7 Rb6 d8R Be6 Nc3 b1Q c8Q b2 Rd7 b3 Nge2 Bc4 Rg1 h1N Nd4 Nf2 Rb7 Nh3 Nd5 Ng5 Nc2 Rg8 a3 Kh8 Ndb4 Bh6 Qe2 Re8 Na6 Qe1 Qc7 b1N Rg4 b2 Rf4 Ba2 Qd6 Qd2 Qdd3 Qb4 Qdd1 Nd2 g7+ Kg8 Qde1 b1R Qc1 Kf7 g8B+ Kg7 Bb3 Kh8 a4 e6 Ra7 Qd7 Qce1 Qg7 Q1f2 Rc1 Rb1 Qg6 Qee3 Re1 Bfc4 Rh1 Qf1 Rh3 Bd5 Qh5 Qee1 Qh4 Qfe2 Nf1 Qc1 Nh2 Qcf1 Bf8 Rb2 Bc5 Rb1 Be3 Rb2 Rb7 Rb1 Qh6 Rb2 Qd2 Kd6 Rb6+ Kc7 Qc3+ Bbc4 Qa5 Rb5 Qb4 Bb3 Rd6 Rbb7 Rb6 Qh1 Bb1 Qg1 Ba2 Qgf1
K2Nkn2/B1Q1R1rp/1pNBPb2/b1QRp3/1r1p4/3b1q1q/1N1bnq1P/8 b - - 0 1 illegal: No proof kernel
bb2n3/qr3Pp1/nq1N1r1p/p1p2bQ1/3Q3K/bk1P4/R2B4/1BN1nRQ1 b - - 0 1 illegal: No proof kernel
2Q3b1/Qn2p1Bp/2N1rPpK/N1R5/5n1P/p1b1nnq1/4b2N/q1B1kr1R b - - 0 1 legal: proof: e4 b5 g4 d5 b4 dxe4 a4 bxa4 g5 c6 b5 f6 b6 fxg5 Be2 g4 Bb5 cxb5 Ke2 Kf7 Ke3 Kf6 Kf4 a5 c4 g6 h4 g3 d4 g2 b7 b4 d5 e3 f3 e2 d6 e1N d7 b3 c5 b2 c6 a3 c7 a4 Ra2 Nd3+ Kg4 Ke5 Kg5 Kd4 f4 Nh6 f5 Na6 b8N Bg7 Rh2 Ng4 Nd2 Ke3 Rh1 Kf2 Ne2 g1N Nd4 b1B Qc2 Nf4 Rh3 Ke1 Qd3 Ne3 Nf1 Rf8 Qc2 Nc5 Nb3 Ra6 Nh2 Nb7 Na5 Re6 Qc5 Bd3 Nbc6 Be2 Qa7 Bc3 Rc2 a2 Kh6 Qe8 d8B a1Q Qd4 a3 Qa7 Bd7 c8Q Nf3 Bc7 Qd8 Be5 Qc7 Bg7 Be8 Rd2 Bf7 Rd5 Bg8 Rc5 Nd3 Nf1 Qg3 Rh2 Nf4 Rh1 Rd8 f6 Rd1 Rc4 Kf2 Nh2 Rf1 Rc5 Ke1 Rb5 Nfg2 Re5 Nf4 Rc5
B2KN3/3Pr2B/3b1pQq/4QpR1/nRq1pk2/1n1bqN2/3p1P1R/2r2b1b b - - 0 1 illegal: No proof kernel
qnR1K3/1q1p4/b1p4N/5bbr/2PpBbp1/B1R2n1q/k1P2BN1/Q3r1Q1 b - - 0 1 illegal: Other
1r3bbb/B2pqN1p/7N/rPpB3k/B1Pp2n1/2q1b3/n5KR/r1Q2Q1R b - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 a4 bxa4 e5 g5 e6 gxh4 Qf3 fxe6 Qd3 e5 Qd1 e4 f4 Kf7 Kf2 Kg6 g4 c5 Kg2 a5 c4 e3 b4 a3 g5 e2 b5 e1B Bb2 a2 Nh3 a4 Nf2 a3 Ng4 Bg3 f5+ Kh5 g6 Na6 f6 Qe7 f7 Nh6 g7 Nb4 g8B Bb7+ Kh3 Be5 Be2 Bd5 Bc3 Ra5 Nd2 Bf6 Rc1 a1B Ne4 a2 Ng5 Bb2 Rc2 a1Q Qc1 Na2 Bd1 Ba3 Be1 Qc3+ Bg3 Bb2 Rch2 Be5 Ne3+ Ng4 Ba4 Beg7 Bb8 Bf6 Qb1 Bc1 Ba7 Bd2 Qc1 Be5 Nf3 Be6 Nf5 Be3 Nh6 Bf6 Kg2 h3+ Kg3 Bd5 Ne5 Be6 Rd2 h2 Kh3 B8g7 f8Q Bd5 Qb8 Bf8 Nef7 B6g7 Qf4 Be6 Rhd1 h1R+ Rh2 Re1 Qf1 Bd5 Nd8 Be5 Be6 Rg8 Ndf7 Bh8 Rdd2 Rd1 Rh1 Re1 Rdh2 Rd1 Qb2 Ra1 Qbb1 Bfg7 Qbc1 Rb8 Bf5 Bf8 Be4 Be6 Bd5 Qd6 Ne5 Bg8 Nef7 Qe7 Kg2+
4b3/2P1Kp1N/2rr2pb/2QB2r1/3RN3/1bp1pnB1/2k1bqQP/RQ1q1n2 b - - 0 1 illegal: No possible last move
K7/1Rp1b2n/Q7/2pnkb1q/p1N1pRq1/BBnq2Q1/Qq1PN1rP/2r5 b - - 0 1 legal: proof: e4 b5 g4 f5 c4 fxe4 a4 bxa4 c5 h5 c6 hxg4 Nf3 dxc6 Ng1 c5 Ke2 Kf7 Ke3 Kf6 f4 g5 b4 a5 f5 e5 b5 a3 b6 a2 b7 g3 Nc3 g4 Na4 g2 Nc3 g3 Nb5 Nc6 b8Q Nce7 Qf3 Nd5+ Ke2 e3 Kd3 e2 Kc4 e1Q Nd6 e4 Kb5 Qe2+ Kc6 Ke5 f6 Be7 f7 Ngf6 f8Q Nh7 Rb1 a1Q Qd3 Bf5 Kb7 Qh5 Qf7 Rg8 Ne2 g1N Qa6 g2 Ba3 a4 Qc8 Rb8+ Ka7 Rg3 Rb7 Qb2 Qg6 Qd7 Qcg8 Rc3 Qg4 Rc1 Qf7 Rg8 Qg3+ Nf4 Qa2 Qdb5 Qc6 Qd3 Qa6 Rg4 Ka8 Rg5 Nd4 Ne2 Rg1 Nc3 Ne2 Rg6 Rh1 g1Q Nc4+ Kd5 Bh3 Qg2 Re1 Qgf3 Rf1 Qfg4 Ng1 Kd4 Rf2 Nfd5 Rf4 Rg5 Bf1 Rg6 Be2 Rg5 Bd1 Rg7 Bb3 Rg6 Nb6 Ke5 Ne2 Qgh3 Qe3 Rg2 Qg3 Q3g4 Nc4+
1qb4K/p1q1r3/4Q1Q1/4N1RB/Bkn2bpp/2Pq4/Bp3NPr/b2b2nR b - - 0 1 illegal: Other
7N/pqP1Qnnk/N4K2/3q1pB1/1BQr3r/6bp/1RP1p1BR/3bn1nq b - - 0 1 illegal: Other
1N3qq1/prpn1N1B/2pr2bb/2b2Qq1/3p1Pq1/3N3R/1P5Q/kR1nBK2 b - - 0 1 illegal: No possible last move
2kR2BQ/ppB1P3/q3p1b1/q1q2N2/r6n/R2pnrQn/Nq1PQ2b/4K3 b - - 0 1 illegal: No proof kernel
K1BN4/3n2p1/3Q4/2PR4/Rnp2Nbq/BnpbrP1Q/r1k4p/2bnb2Q b - - 0 1 illegal: No proof kernel
Q3R2k/K1nprn2/1p2qP1r/1BrN4/3Q4/N1rnPRQ1/3Bp1pn/2b2b2 b - - 0 1 illegal: No possible last move
1R3bnr/1p1pRp1b/2np4/3Q2r1/2PB1n1N/6nQ/q4bPN/k1NKbB2 b - - 0 1 illegal: Other
NB4n1/1R2rR2/Q3P1qp/kPKbp1R1/Bpp3r1/2N1n1b1/2rpQ3/3n2b1 b - - 0 1 illegal: No proof kernel
1r2B1Kn/3b1p1Q/3B1r1k/PPn4b/p2bn1RQ/Npq2r2/p1N1p2N/3R4 b - - 0 1 illegal: No proof kernel
2r1qb2/1K3b2/Q1Qq1b2/2p5/rpRpnB1N/1P1pr1n1/Bp3RP1/2B2N1k b - - 0 1 illegal: No proof kernel
1bBb1q2/q1k3p1/b2p1R1P/1n1Pp1p1/Kn5Q/4NrQ1/1p1n2Qr/4NR1B b - - 0 1 legal: proof: e4 a5 g4 f5 b4 axb4 g5 fxe4 g6 hxg6 Ba3 c5 Ke2 c4 Bc1 c3 Ke1 g5 Bb2 cxb2 c4 b5 a4 e5 d4 d6 Kd2 Kd7 Kc2 e3 Kb3 e2 f4 e1B h4 Qc7 a5 Ne7 h5 Nd5 a6 Ne3 a7 Rh6 c5 Ba6 f5 Nc6 f6 Bf2 f7 Nc2 Na3 b1N Qd3 Be7 f8Q Bd8 Nc4 Nca3 Qf4 Rh8 Qh4 Nd2+ Ka2 Qc8 Bg2 Kc7 Ne3 b3+ Kb2 b4 h6 Nb5 Rf1 Rf8 Nf3 Bg1 Ne1 Rf3 d5 Qf5 Rh3 Qf8 Bh1 Rb8 a8Q Bf2 Kc1 b2+ Kc2 Rb6 Rh2 Bg1 Rhf2 b3+ Kd1 Nb4 c6 Rb7 Qde4 Rb6 Qeg4 Rb7 Qg2 Rb6 Qa7+ Rb7 Qc5 b1Q+ Qc1 Qa2 Qa3 b2 Qc3 Rh3 Rf6 Rh2 Qb3 Qa5 Qd3 Qb6 Qc3 Qa7 Qa3 Kb6 c7 Rb8 c8B Kc7 Ng4 Rb6 Qag3 Rc6 Ne3 Rc3 Ng4 Rf3 Ne3 Qb7 Nf5 Ba7 Ne3 Nd3 Kc2 Bb8 Rg1 Qa7 Rf1 Nb1 Kb3 Nb4 Ka4 Nd2 Qe2 Be7 Qef2 Bd8 Qfg2
NqBrbn2/bp1p1p1Q/R4P2/4pp1k/N1r4n/bN6/2Qqq2P/RK1B4 b - - 0 1 illegal: Other
4N1bk/1n2bn1q/4prp1/p5N1/1b3pQ1/2PQP1b1/B1R2prQ/BK1R3b b - - 0 1 illegal: No proof kernel
3B2bN/1r2p1b1/pkNPQ1P1/1rNp2Q1/2B1pn1q/K2bp3/1R4bb/2R3n1 b - - 0 1 illegal: No possible last move, all moves rejected
1nrR3r/bp2np2/Q4Qr1/1qr4p/PP3R1R/3pN1r1/bK3p2/BN1Bk3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 d4 e5 d5 exf4 d6 a4 Qd5 cxd6 Qc5 d5 Qc4 d4 Qb3 axb3 Kd2 Ke7 a4 Ke6 e4 Ke5 g4 d5 c4 h5 g5 f3 g6 Kf4 c5 Kg3 c6 Kf2 c7 h3 g7 b2 Kc2 d3+ Kc3 h2 e5 d2 e6 d1R e7 Qd7 e8Q Ne7 g8Q Qb5 Qg7 Ke1 Qf6 Be6 c8R d4+ Kc2 Ra5 Be2 Rd3 Qc6 Ba2 Rd8 f2 Qa6 Re3 Bd1 d3+ Kc3 Rg3 Ne2+ Rg1 Nd4 Bh6 Re8 Be3 Nf5 Bb6 Rd8 Ba7 Na3 b1R Ne3 Rb2 Nb1 Rd2 Bb2 Re2 Nf1 Rg3 Rg1 Rg6 Rg4 Re3 Rf4 Reg3 Ne3 h1R Nd2 Bb6 Rb1 Rhg1 Ba1 Ba7 Kb2 Rgg8 Rc1 R3g6 Rcc4 R1g3 Nb1 Re8 Rd6 Rc8 Rce4 Qg5 Rdd4 Rac5 Rd8 Qd5 Rd4 Qc4 Rh4 Qb5 Rdf4
4n1bK/1pp1bqp1/1P1rp3/1N1Bbn2/B7/1Q1kP1p1/2R1n2R/2Qb1BrN b - - 0 1 illegal: Other
1Qq1b1Qr/P5Np/3brR1k/1NR1r2p/1R3np1/KpBP3B/2pr4/5nn1 b - - 0 1 illegal: No proof kernel
2n5/1r2Brp1/2BqbPKb/Q2p1N2/1R3R2/k1b1pR2/3pp1PQ/Nnb3q1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 h4 fxe4 a5 Qc7 h5 Qh2 a6 bxa6 h6 a5 Qg4 a4 Qf3 Nxh6 Qd1 Ng8 Kd2 d5 f4 Kd7 b4 Kd6 c4 e5 f5 a5 f6 h5 b5 Kc5 b6 Kb4 c5 a3 c6 h4 c7 d3 Ke3 h3 b7 a4 Be2 a2 Na3 d2 Bf3 Ra7 Bb2 Be6 c8Q Nd7 b8R+ Rb7 Qdc1 Ne7 Qd8 Nb6 Qb1 Nec8 Ra8 Bd6 Ra6 Rf8 Ra5 Rff7 Bd1 Bb8 Ne2 Nc4+ Kf2 e3+ Kf3 Bd6 Nd4 e2 Nf5 e4+ Kg4 e3 Kh5 Bf4 Rf1 Bh6 Rf3 Qd6 Kg6 h2 Nc2+ Kb3 Qc1 h1Q Rb1 a1B Ba3+ Bb2 Na1+ Ka2 Bc5 a3 Ba4 Qg1 Bc6 Bc3 Rbb5 Bb2 Qe1 Bc1 Bb4 Kb2 Ra4 a2 Qh4 Na3 Qa5 Nb1 Qh1 Rfe7 Qh2 Rf7 Nb3 a1B Rb6 Qd8 Be7 Qd7 Raf4 Qd6 Qc5 Ka2 Rbb4 Bc3 Na1 Ka3 Qa5#
3R1KNq/1k2rbpP/2B2pPQ/2n1pp2/1Q2n3/1R1r3p/1bpRq2B/1Nb5 b - - 0 1 illegal: No proof kernel
B2Q3K/2brp3/1rp3Bp/pp3qPN/bR1k4/pQ2n2P/R2Nq1N1/n6r b - - 0 1 illegal: No proof kernel
r1Q1QbRN/1qQ1n1Nr/3ppp1B/pp1B4/2r1pR2/3PP1K1/2rkb3/n7 b - - 0 1 illegal: No proof kernel
B3n3/1rb1Pp2/p1Rpp3/1b1PpB2/NQ2Q3/3r1kpq/1q2NNp1/2n1KR2 b - - 0 1 illegal: No proof kernel
R3q2k/1B2q2n/3b1p2/KPBR4/3Nr2q/1b1Q1PBB/3nr3/bNr1r3 b - - 0 1 legal: proof: b4 c5 e4 f5 h4 d5 Qf3 dxe4 bxc5 b5 a4 g5 axb5 gxh4 g4 fxg4 Qf6 exf6 c4 Kf7 d4 Kg7 Kd2 h5 Kc3 a5 f3 h3 d5 g3 c6 a4 d6 h2 Kb4 e3 c7 e2 c5 e1Q+ Bd2 h4 d7 h3 Nc3 g2 Bd3 a3 Rd1 a2 Ne4 a1B Ng5 Bd6 Bc4 Qee8 Be2 Rh4+ Bf4 Kh8 Ne6 Na6+ Ka5 Nh6 c6 Nf7 Bf1 Ng5 Nd4 Qde7 d8B Be6 c8B Bb3 c7 Nh7 Bg3 Re4 Nge2 g1R Nc3 Nc5+ Ba6 Re2 c8Q Ne4 Qd7 Nd2 Bb6 Rb8 Bg2 Rge1 Nb1 Rd8 Rf1 h1R Bc5 h2 Bb7 Rg1 Qf5 h1Q Qd3 Qh4 Bh3 Re4 Rf2 Rc8 Re2 Rg2 Re3 Rg4 Re5 Rge2 Rd5 Rge4 Rc1 Rc6 Rc4 Rc7 Ra4 Rc8 Kb6 Rc7 Ra8 Rc6+ Ka5 Rc7 Bb6 Rcc1 Bc5
6kB/1Nb2b1q/Rn1r3P/2p1P3/R1B1r1q1/2p1q3/B1rq1n1N/QK1B4 b - - 0 1 legal: proof: f4 h5 b4 d5 e4 g5 c4 gxf4 a4 dxc4 g4 b5 g5 e5 Qg4 hxg4 Ra3 Bh6 Rh3 Bf8 Rh6 a6 axb5 a5 Rf6 f3 Rf4 exf4 bxa5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd1 c5 Kc2 f5 d4 Kf7 h4 g3 b6 f2 h5 g2 h6 f3 a6 f4 a7 Nd7 b7 Nb6 b8Q Nf6 g6+ Kg8 g7 Ng4 d5 Be6 d6 Bf7 d7 Bd6 Rh4 Bc7 Na3 c3 e5 Rh7 Bc4 f1Q Kb1 f2 Nf3 g1Q Nb5 Qe1 Nd6 f1Q Nh2 f3 Nb7 f2 Qc8 Rb8 a8B Qe3 Ba2 Qfe2 Bc4 Qe8 d8R f1R Rd6 Nf2 Qh3 Rd1 Qf1 Rd2 Ba2 Qgg5 Ra4 Qee7 Rg6 Rc2 Qh1 Nc8 Rga6 Qgg4 Qd1 Nb6 Bc4 Q3f3 Bg5 Qfe3 Bf6 Q2d2 Qc1 Rh8 Qa3 Rd8 Qa1 Rd4 Ba2 Re4 Bc4 Kh7 Ba2 Rd8 g8B+ Kg6 Bc4 Rd6 Bg7 Bd5 Bf7+ Kh7 Bh8 Be6 Bh5 Bf7 Ba2 Kg8 Bc4 Qg7 Bd1 Qe7g5 Na5 Qg1 Bad5 Qh7 Nb7 Qg2 Ba2 Qg4 Bdc4
1qB1RqN1/kb1PP1qn/2b3p1/b2r4/pn2N2n/1n2B1N1/6RK/Q4N2 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 f4 dxc4 b5 e5 Bg2 Ra6 bxa6 exf4 Bf1 b5 Bg2 b4 Bf1 c3 Nxc3 b3 Nb1 Qd7 Qc2 Qxa4 Qd1 Qd4 Nh3 Qd7 Ng1 Qd8 Kf2 Kd7 Kg2 Kc6 h4 Kb6 d4 f5 e4 c5 e5 g6 h5 f3+ Kh2 c4 h6 g3+ Kh3 b2 h7 a4 a7 f4+ e6 g2 a8N+ Ka7 d5 f2 d6 c3 d7 f3 Bb5 f1B Ba6 f2 Qh5 c2 Nc3 b1Q Nc7 Bb4 e7 Nf6 Ne4 Qf8 Kh2 Bb5 Qd5 f1Q Ra2 Nc6 Ne2 g1N Qd1 Bb7 N2g3 Ba5 Nd5 Nb4 Ne3 Qg7 Qe1 Ra8 h8N Nh7 Nf7 B5c6 Nh6 Qff8 Ng8 Qb3 Bd2 c1N Nef1 Qbb2 Qd1 Nb3 Qa1 Qbe5 Bf4 Qeb8 Rg2 Nf3+ Kh3 Nh4 Kh2 Qd6 Bd2 Rc8 Bf4 Qb8 Bc1 Bb5 Bf4 Rc5 Be3 Ba8 Bc8 Bb7 Nfd2 B5c6 Rf1 Qe8 Rf8 Qef7 Re8 Qff8 Bh6 Rb5 Nf1 Rd5 Be3+
1n2kN2/P2R4/rp1N1PRB/nqR1b1QB/4K1p1/n2n1Rp1/1b3q2/r7 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 g4 h5 b4 hxg4 d5 c5 dxc6 axb4 c5 d5 c7 Bd7 c8Q d4 Qxd7+ Qxd7 c6 Qd8 Kd2 g5 h4 e5 f4 d3 Ke3 b3 a4 g3 h5 b2 a5 b6 h6 d2 h7 Qd6 c7 Ne7 a6 Bg7 f5 Nec6 Rh3 Qd7 Be2 Na5 Nf3 Qb5 Nc3 b1N Nd4 Na3 Qg1 d1Q Ne6 Qe1 Nf8 Rg8 h8R Qf2+ Kd2 Bf6 R8h7 Bh8 Rd7 e3+ Kd1 Rg6 Bh5 e2+ Kd2 Ra7 Ne4 e1N+ Kc3 Nd3 Bd2 Bf6 Re1 Bg7 Re3 Bf6 Rf3 g4 Bh6 Bh8 Qc1 Bg7 Rf7 Rd6 c8R+ Rd8 Rc4 Rd4 Rc6 Ra4 Rg6 Bf6 Qg5 Bh8 Nd2 e4+ Rfg7 e3 Nc4 Ra8 Kd4 e2+ Ke4 e1B Rd7 Be5 f6 B1c3 Rh1 Bb2 Rc1 Nb1 Rc3 Ra1 Rc2 Na3 Rc3 Ra7 Rc2 Rc7 a7 Rc5 Ne3 Rc3 Nf5 Rb3 Rc5 Rb4+ Rd4 Ra4 Nd6+ Kd8 Kf5 Nb3 Ke4 Ra6 Nb7+ Ke8 Rd7 Na5 Nd6+
1R1rk3/b2r1p2/Q3NR1B/1RBqp3/5N1n/R3P1n1/p1r1P2K/2q1rr2 b - - 0 1 legal: proof: d4 c5 a4 g5 h4 gxh4 a5 Qb6 a6 cxd4 Bg5 Qb3 Kd2 Qe3+ Ke1 bxa6 Bf4 a5 Bh6 a4 Bf4 Qe4 Bc1 Qe3 fxe3 Ba6 b4 Bb7 c4 Bh6 g3 Bf8 b5 Kd8 b6 Bc8 Bh3 Ke8 Be6 Ba6 Bd5 Bb5 cxb5 Nf6 Bc4 Ng8 Bb3 axb3 Kf2 e5 Kg2 d5 g4 a5 g5 h5 g6 h3+ Kg3 d3 g7 d2 b7 b2 b6 h4+ Kh2 d4 Qe1 d1Q Ra4 d3 Qf1 d2 Qf6 Nc6 b8B Nd4 b7 Bc5 Qf5 Nh6 Qg6 Nhf5 Qf6 Ba7 Qg6 Ng3 Qa6 Ndf5 Nc3 b1R Bb2 Qc1 Bd6 d1R Bba3 Rd8 Bdc5 R1d7 Rf4 a4 b8R Rh6 Nd5 Rc6 Bab4 a3 Nf3 a2 Ng5 Rcc8 Bf8 Rc2 g8R Ra1 Re1 Rb1 Ne6 Ra1 Kg1 h2+ Kg2 h1R Bbc5 Rf1 Kh2 h3 Ra4 Ne7 Rg6 Nef5 Ra3 Nh4 Rf6 Rb1 Rd1 Re1 Bh6 Ra1 Rf1 Rb1 Ndf4 Ra1 Kg1 h2+ Kf2 Qb2 Nh5 h1Q Rb1 Qd5 Kg1 Rec1 Kh2 Rd1 Rf6 Rf1 Rc1 Qb1 Nhf4 Qb2 Rd1 Rac1 Rdd3 Rce1 Rdb3 Qc1 R3b5
1B1Qn2b/5N1n/1q1pR1K1/Rp6/qbBpR3/4P2R/P1krq1b1/2N4q b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 Bd2 a5 Bc1 axb4 h4 h5 c3 bxc3 gxh5 Be7 Qd3 Ba3 Qd1 Bf8 Nd2 b5 Ngf3 g5 Nb1 g4 Ng1 Ra6 Kf2 Rg6 Ke1 Rg5 hxg5 Bc5 Rh2 Bd6 Rh1 Bf8 Kf2 Ke7 h6 Kd6 g6 Kc5 g7 Kc4 h7 c2 Kg2 f3+ Kg3 f2 Kf4 g3 Kf5 g2 Nf3 g1B Qd2 Na6 Rh6 Nf6 g8R Bb7 Rh2 Bb4 Kg5 Nc7 Bh3 f1Q Qe3 Nce8 Qd2 Qb6 Rg6 Qd1 Nc3 Rf8 h8R Nh7+ Kh6 f5 Qg5 f4 Qd8 Rg8 Ba3 c1Q Re6 Qa4 Ng5 f3 Bf1 f2 Rh3 Bg2 Rb1 Qd2 Re1 Bh2 Bc1 Qb2 Nf7 Be5 Bf4 Bf6 Bb8 d6 Kh5 Rf8 Rg8 Bh8 Rgg3 Qd2 Kg6 Qdd1 Rge3 Qd3+ R3e4 Qf3 e3+ Qe2 Rb1 Kd3 Rb3 Kd2 Ra3 Kc2 Ng5 Rf5 Nf7 Rc5 Nb1 Rc3 Nd2 Rd3 Nb3 Rd2 Nc1 Bf3 Bg2 f1Q Bh1 Qfd1 Bg2 Qh1 Bf1 Qd1 Bc4 Qe2 Ng5 Bg2 Nf7 Qb3 Ra6 Qa4 Ra5
2K5/1NN2n2/5BPp/pNn3Q1/RP1bbr1p/5rqp/B4Nbk/1R2n3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 e6 b4 exf5 b5 Bb7 Na3 Ba6 Nb1 Bc8 h4 g5 b4 gxh4 g4 Bd6 g5 Be6 Ra3 Bc8 Rah3 Bf8 Qb3 Qd6 Qg3 Qd8 Qg4 fxg4 Ba3 gxh3 Bb2 Be6 Bc1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 c6 e4 a6 b6 Nh6 b7 Nd7 b8R Qc7 g6 Nc5 Bc4 Bf5 Ba2 Bg7+ Kc4 Ke5 d6 Kf4 d4+ Kg3 d5 f6 e5 Be4 d7 Rf8 d8Q Nf7 e6 Kg2 e7 Qg3 e8N f5 d6 h6 d7 f4 Ne2 f3 Nec3 f2 Nd2 Bf6 Bb2 Bd4 Rb1 Kh2 Qg5 Ra7 d8N f1B+ Ne2 Rc7 Ra8 Bfg2 Nc3 Re7 Nb5 Re5 Qf4 Rf5 Qg5 Rf3 Nec7 Rf4 Nb7 Rf3 Nb3 Rf4 Nc1 Rf3 Re8 a5 Nd3 Na4 Nf2 c5 Nc3 Rf4 Kb5 c4 Ka6 Nc5+ Kb6 Rf3 N3b5 c3 Ka7 c2 Kb8 c1N Kc8 N1d3 Ra1 Be3 Bf6 Ne1 Rb1 Bd4 Rd8 Re8 Ra1 Re5 Re8 Ref5 Rd8 Be3 Rdd1 Bd4 Rdb1 R3f4 Bc4 Rf3 Ra4 R5f4 Ba2
bq6/b5Kn/4R1b1/R5nP/b4Nqr/kBP2Bqr/N1R1b3/QnR1b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 h4 d5+ Ke5 g5 e4 f5 b3 a5 b6 g2 b7 a4 Ba6 a3 Ra2 d3 Nc3 d2 Nge2 g1B Qf1 d1B Nb1 g3 Nbc3 g2 Nc1 d4 Rb2 d3 Qf2 g4 Rh3 a2 Qf3 a1N Nd5+ Ka3 b4 g3 b5 f4 b6 Bb4 Nb3 d2 Qe2 f3 Bd3 f2 Ne7 f1B Nc1 Nb3 Rh1 Nh6 Kf6 Nd7+ Kg7 Ra4 b8R Nf7 b7 Nf8 e5 Bf5 e6 Nh7 Bc4 Nfg5 Na2 Bg6 Qe5 Bfe2 Ra8 Qb8 Ra5 Ba7 Nd5 g1Q e7 g2 e8B Qh2 Bc6 g1Q Qc3 Qg4 Nf4 Qhg3 Re1 Bf3 Re6 Bde2 B6d5 Bh1 Bf3 d1B Rb1 Bg2 Qa1 Nd2 Rc1 Nb1 Bb3 Be1 c3 Rd8 h5 Rd3 Rd5 Bh1 Bc4 Rb4 Ra5+ Ba4 Bb3 Qg1 Bfd5 Rh3 Bf3 Q1g3 Rc2 Qe8 b8R Rc4 Rbb5 Qb8 Rd5 Re4 Rd1 Rb4 Bfd5 Bhe4 Rdc1 B4f3 Bdc4 Ba8 Bd5 Qf5 Nd3 Rbh4 Bf3 Qfg4 Nf4
1Rk1B1K1/q1n3n1/3Rrr1B/1n6/B2P1qbr/b3N2P/2Qq4/n1r2NqB b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Qa4 f5 Qb3 f4 e4 h5 Qf3 gxf3 g4 Ke7 g5 Ke8 b4 Ba6 Ra3 Nh6 Re3 Ng8 Re2 Bc8 Rg2 Qd5 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 d3 a5 g6 c5 b6 f5 h3 c3 e5 g3+ Ke1 c2 Kd2 f2 Kc3 a4 Kc4 a3 Kd5 c4 g7 c3 b7 a2 b5 a1N b6 g2 Bd2 c1N Na3 f3 Be2 f1R Rh2 f4 Be3 c2 Bc5 f2 Nc4 f3 Be3 Na2 Bd1 c1R Ne2 Rh4 Bh6 Na6 b8Q Ba3 Ng3 g1Q b7 Qb6 e6+ Kd8 Qf4 Ne7+ Ke5 Nf5 Kf6 Nc3 Kf7 Nb5 g8B Nac7 b8R Ng7 Qf5 Ra6 Ba4 Qa7 Ne3 Rd6 Rg2 Rdc6 d4 Rfe1 Qc2 f1Q Nd1 f2 e7+ Kd7 Bh7 Qd3 Be4 f1Q+ Kg8 Qf4 Nf1 Qdd2 e8B+ Kd8 Rg5 Rf6 Bh1 Re4 Nde3 Re5 Rb7 Bg4 Rh5 Re4 Rd5+ Kc8 Rd6 Ree6 Rb8+
Nq2n3/2Nb1qn1/2q3q1/1Rn5/2BP1NN1/3Qq1P1/1BKbnk2/b4qRr b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 f5 e6 Bb2 exf5 Ba3 fxg4 Bc1 g3 Nh3 g5 Bb2 b5 Qb3 g2 Ba3 g1B Bc1 g4 Ng5 g3 Nf3 g2 Qd1 Ra3 Nd4 Rg3 hxg3 Bh2 Nf3 Bg1 e4 Kd7 a4 Kd6 d3 Kc5 Kd2 f5 e5 h5 e6 c3+ Kc2 h4 a5 f4 e7 h3 e8N h2 a6 Nd7 a7 Qe7 a8N Bd4 Nbd2 g1Q Ra3 b3+ Kb1 b2 Ra4 b4 Qc2 Nh6 Nh4 f3 Be2 f2 Bh5 f1Q Bf3 Nf6 Be2 Nf5 Ra6 Ng7 Re6 Qf7 Bd1 Bd7 Qa4 c2+ Ka2 b3+ Ka3 b1Q Bg4 b2 Nd6 Nfe8 Kb3 Be7 Bh5 Bg5 Ndf3 c6 Bd2 c1N+ Ka3 Nb3 Bg6 Qc2 Bh7 b1Q Nb5 Ba1 Qa6 Bf4 Bc1 Bd2 Nbd4 Qgf2 Rg1 h1Q Nh2 Kd5 Qb6 c5 Ng4 c4 Ng6 c3 Qa6 Q2e1 Rb6 Nc5 Nb5 Qef2 d4 Ke4 Nf6+ Ke3 Nf4 Qc6 Bd3 Rh1 Nbc7 Kf3 Qc4 Qe3 Ng4 Qbb5 Qb3 Qb1 Bc4 Qbg6 Bb2 c2 Ne2 c1N Nf4 Ne2 Qd3 Qb7 Ka2 Q5c6 Rb4 Qb8 Rb5 Qf2 Kb1 Qe1+ Kc2 Qf1 Nh2+ Kf2 Ng4+
2B1nn2/3Bq1n1/b3q1nr/3r1RQ1/N4q1R/RK1P1r2/2R1Pq2/2N2krq b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 g3 f5 Qc2 f4 Qd1 f3 Nh3 f5 Bb2 h6 Ng1 f4 Bf6 Bd6 Bg5 hxg5 Qb3 f2+ Kd1 f3 Kc1 Nc6 Qd1 Bf4 gxf4 Nb8 Kc2 Ke7 a4 Ke6 h4 Kd5 a5 Kd4 a6 c5 h5 b5 h6 g4 a7 g5 h7 b3+ Kb2 b4 f5 g3 f6 c3+ Kc1 g4 f7 b2+ Kc2 g2 f8R c4 Ra3 g3 Ra6 Nd7 Rah6 Ngf6 Rg6 Qe7 Rh5 Ba6 Rfg8 Ne8 Rh2 Nf8 R6g7 Rd8 a8B Rd5 Qe1 b3+ Kd1 Ke4 Nh3 g1Q Bg2 f1N Rf7 Qf2 Bh1 g2 Rfg7 g1R Rgg2 Ng3 Bc6 Nh5 Bb7 Nhg7 Na3 b1N Nf4 c2+ Kc1 Nc3 Kb2 Kd4 Nb1 c1Q+ Ka1 Qc2 Rg5 Qce4 Kb2 Q4e6 Rh3 Ke4 Bc8 Kd4 Kc1 b2+ Kc2 Ke4 Rf5 Kd4 Na3 b1R Nd3 Rb3 Nc1 Ke4 Rfh5 Kf4 R3h4+ Kg3 Nb5 Ra3 Bg2 Rb3 Bh3 Ra3 Bf5 Kg2 Nd3 Rb3 Qb1 Ra3 Nc1 Kf1 Qb2 Rd6 Qb4 Nd5 Qc5 Nf4 Nc3 Rd5 Na4 c3 Qe3 N4g6 Qg5 Qe5 Bfd7 Q5e6 Kb1 c2+ Kb2 Qa7 Rc4 f2 Rch4 Rag3 d3 Rf3 Kb3 Qae3 Rc4 Qf4 Rc3 Ke1 Rc7 f1Q Rh4 Qf2 Ra7 Qff7 Rf4 Kf1 Rf5 Qff6 Qf4 Bb5 Na2 c1Q Re5 Rg5 Nc5 Nd6 Ra3 Kg1 Na4 Ba6 Bb7 Rgg3 Qh6 Qff4 Qg5 Kg2 Rf5 Qh1 Nc1 Kf1 Bb5 Nd7 Rc8 Rg1 Rc2 Nde8 Bc8 Rg8 h8R Ndf8 Rh3 Rh8 Rh4 Rh6 Bbd7
R7/1br1r2N/P1qb2PB/5RN1/2rqB3/n1pnQ2K/4qk2/bB1nbB2 b - - 0 1 illegal: No possible last move
NK2N1N1/3pr1bb/1B3n2/RNr1rbq1/2r1kP1P/3B4/3r3n/2Qrq2R b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 c5 d4 cxd4 Kd2 f5 Ke1 b5 axb5 fxe4 Bh6 axb4 Bd2 Rh4 Bc1 Rh8 Ke2 Kf7 h4 Kf6 f4 Kf5 c4 g5 c5 e5 b6 e3 Kd3 b3 Kc4 d3 Kd5 d2 b7 g3 c6 e4 c7 b2 Nh3 g2 Nf2 g1Q Ra6 g4 Ra4 g3 Bb5 g2 Nd3 e2 Nc3 b1B Nc5 e1R Ba3 e3 Bf1 e2 Na2 Ra5 Rb4 Bg7 Kd6 Qg5 Rh3 Nc6 b8N Ne5 Nc3 Ba6 c8N Nf6 Kc7 Nf3 N5e4 Bad3 Rh1 Nh2 Qc1 d1R Nb6 Rd2 Ra4 Rc8+ Kb7 Qe3 Nc6 g1R Bc5 Red1 Ra3 e1R Na8 Rgg2 Bd4 Rge2 Bb6 Ra4 Ra1 Rc4 Nb5 Qeg1 Ra5 Q1g3 Ne5 R8c5 Nc6 Re3 Ka7 R1e2 Kb8 Qe1 Nbc7 Bbc2 Nc3 Re6 Ne8 R2e5 Nd8 Bb1 Nf7 Re7 Be2 Ke6 Bf1 Bh7 Nh6 Bbf5 Nb5 Kd5 Ng8 Ke4 Bd3+
r4R2/1RqqbBbr/B1nr1N2/1B4QP/rb1N3B/p2n4/1b3P2/2bk1K2 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 e5 h5 e6 fxe6 Nd2 e5 Nb1 e4 b3 hxg4 Bg2 a5 Bh3 a3 Bf1 a2 Bh3 a4 Qd2 a3 Bf1 Bb7 Qe2 Bc6 Qd1 Ba4 bxa4 Rh3 Qd3 Rh5 Qd1 Rh8 h4 Kf7 c4 Kg6 h5+ Kf5 a5 d5 c5 g5 c6 e5 a6 g3 a7 e3 c7 Ke4 c8B g2 Bg4 e2 Be3 d3 Rh2 d4 Rh3 Nd7 Rh4 Ne7 Nh3 g1B Qc2 Qc7 Qc5 Rh7 Qb4 Nc6 Nf4 Bh2 Qc4 Be7 Qc3 Nc5 Ng2 Bf4 Bh3 Kf3 Qb3 g4 Qd5+ e4 Qg8 g3 Kd2 e1B+ Kd1 d2 Nc3 Nd3 Rc1 a1B Be6 Bb2 Rb1 Bh6 Rg4 Bg7 Bf4 e3 Bf7 Bc1 Bg5 e2+ Kc2 d1R Ne4 Bc3 Nf4 e1B Rb7 g2 Ne2 g1R Nf6 Rh1 Bh4 B3b2 Re4 Rg1 Re5 Rg4 Rf5+ Rf4 Qd8 B1b4 Qg8 Re8 a8B Rf8 Rbb5 Rc8 Bb7 Rf8 Ba6 Ra8 Rfd5 Re4 Rd8 Rf4 Rb7 Re4 Ng3 Rf4 Nf5 Re4 Bg2+ Ke2 Rf8 Ke1 Bf1 Rd2+ Kb3 Kd1 Kc4 Nde5+ Kb3 d3 Bb5 Rd4 Ba6 Rd6 Nd4 Re2 Bb5 d2 Ba6 Re4 Bfb5 Nd3 Kc4 Bh6 Qg5 Bg7 Be6 Ke1 Bf7 d1Q Ra7 Qg4 Rb7 Kd1 Kb3 Be1 Ne2 Ra4 Nd4 Ndb4 Kc4 Qh3 Ne8 Qhd7 Nf6 Nd5+ Kd3 Ndb4+ Ke4 Nd3 Kf3 Ba5 Kg2 Bb4 Kf1
1q2QB1q/1bRpP1q1/1k6/1NnB3b/B3PBRn/2N1r1r1/b5b1/2Kb1q2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 Qd3 e5 Qc4 Bc5 e4 d3 Qd5 Be3 Qd4 exd4 fxe3 Qc7 Bd2 Qa5 Bc1 Qd8 Kd2 g5 c4 b5 a4 f5 h4 b3 a5 f4 h5 b4 h6 f3 c5 g3 c6 f2 c7 g4 a6 g2 h7 g3 e5 b2 e4 b3 e6 Bb7 c8B Nh6 a7 Rg8 h8B Na6 Nc3 b1B Nge2 g1Q Bg7 b2 Ra2 g2 Ra1 Ba2 Kd1 b1Q Nf4 d2 Rh3 Nc5 Bf6 Rg3 Be7 Nf5 Nfe2 Nh4 Bg5 Qb5 Kc2 d1B+ Kd2 d3 Be7 Qbb6 Nd4 Bh5 Bf8 Qf6 Rh1 Kd8 e7+ Kc7 Ndb5+ Kc6 Be2 f1B Bd1 Qh8 Ba4 Qgd4 Rh2 g1Q Rg2 Qdg7 Rb1 Re3 Rg4 Bg2 Ra1 Rb8 a8Q Qf1 Rb1 Qc7 Rb4 Kb6 Rc4 Qff6 Kd1 d2 Kc2 d1B+ Kd2 Ba6 Bb7 Qf1 Bd5 Rb7 Qe8 Qb8 Ba3 Rc7 Kc1 Bb7 Bb4 Rc6 Ba3 Rg6 Bb2 Ne6 Rc7 Nc5 Ba1 Rf6 Bb2 Rff3 Ba3 Rg3 Bb4 Na6 Bd6 Nc5 Bf4
1qb3q1/1pnq2k1/1B1Nb3/BnR1rr2/1NBP2K1/1b4P1/1r2R1Q1/Br5q b - - 0 1 legal: proof: b4 a5 h4 axb4 e4 f5 a4 fxe4 c4 d5 h5 dxc4 a5 c6 a6 g6 a7 Na6 Qc2 Bg7 Qa4 Be5 Qd1 Bb8 axb8B gxh5 Bd6 h4 Bg3 Nc5 Bb8 Na6 Ke2 Kf7 d4 e5 f4 h5 g3 h3 f5 e3 Kf3 b3 f6 b2 Ba7 e2 Ra4 e1Q Ne2 c3 Ng1 e4+ Kf4 h2 Ra5 h4 Bh3 e3 Qg4 c2 Rc5 e2 Bd2 c1R Qf3 Nc7 Qf2 Nb5 Qf1 Qd7 Rg5 c5 Qf3 c4 Qc3 Ne7 Rd5 Rf8 Bc5 Ra2 Qb3 c3 Qd1 c2 Bg2 h3 Nc3 b1B Nf3 Rb2 Nh4 Ba2 Bb6 Bb3 Na2 Rcb1 Bda5 c1Q+ Qd2 Qc4 Rc5 Nd5+ Kf3 Qec1 Nb4 e1R Nf5 Re5 Bf1 Ndc7 Qg2 Qce6 Rg1 h1B Bc4 h2 Kg4 Kg8 Re1 Qf4+ Kh3 Kh8 Re2 Qg8 f7 Kh7 Qf2 Bf3 Qg2 Bg4+ Kh4 Kg6 Nd6 h1Q+ Qh3 Rfe8 f8B Rf5 Bh6 Qe5 Bd2 Kg7 Bc3 Qf4 Qh2 Ree5 Qh3 Rg5 Qh2 Qff8 Qh3 Be6 Qh2 Rgf5 Kg4 Qfd8 Qg2 Na8 Qh2 Q8c7 Qg1 Qb8 Qf2 Nac7 Qg2 Rd2 Ba1 Ra2 Re3 Rab2 Re2
2B1qR2/R1PNn2N/K2n4/8/1q2nbq1/1nqPrNr1/2nkp1N1/1Q1B3r b - - 0 1 legal: proof: d4 c5 Kd2 cxd4 b4 g5 h4 gxh4 b5 d3 Bb2 a6 Kc3 d2 Kd3 axb5 Be5 b4 Ke3 d5 Rh2 f6 Bc3 Bf5 Be5 fxe5 Rh1 Bd3 Qc1 d1N+ Kf3 d4 Qa3 Bg6 Qb2 d3 Qb3 Nc3 Ke3 d2 Kf3 Bd3 exd3 Nd1 Ke2 Qd4 Qb2 Qd6 Qb3 Qd8 c4 Kd7 f4 Kc6 a4 Kc5 g4 Kd4 g5 b5 f5 h5 f6 e4 f7 e5 c5 h3 g6 e3 g7 h2 a5 h4 c6 h3 c7 e4 a6 Qe8 a7 Nd7 Qc2 b3 Ra5 b2 Qb3 b4 Rh5 Ne5 Qa4 Bd6 f8N Nf7 Rh6 Nf2 Bg2 Ne7 g8B Bf4 Rf6 Nd6 Qa3 b3 Bd5 Rg8 Nd7 Rg3 Nc3 b1Q Be6 b2 Qa2 d1N Ke1 e2 Rf8 Ne3+ Kd2 Qa1 Nd1 Nc2+ Ne3 b1N+ Kc1 Kc3 Nf6 Nd2+ Qb1 Rb8 Bf3 e1Q+ Bd1 Rd8 Ng2 e3 a8N e2 Nb6 Nfe4 Nh7 Qa5 Nf3 Qb4 Rf1 h1R Nd7 h2 Bc4 Rb8 Ba6 Rb5 Bc8 Rh5 Rf5 Rhh3 Rf2 Qg1 Rf1 Qgd4 Ra5 Qg7 Ra7 Qg4 Nfg5 Re3 Rf2 Rhg3 Rf3 Be5 Rf8 Bf4 Nf3 Qd4 Qb5 Nb3+ Kb1 Qb4 Ka2 Rg1 Qb6 h1Q Qb8 Qhh4 Qb6 Rh1 Qb7 Ne1 Qb6 Qd4 Ka3 Qe5 Ka4 Nc2 Nfg5 Kd2 Qb8 Nbc5+ Ka5 Nb3+ Ka6 Qc3 Qb6 Nc1 Qb1 Nb3 Nf7 Qhf6 Nfg5 Qfd4 Rg8 Qdc5 Rf8 Q5b4 Nf3+
q3BK2/2bB2N1/Qr5b/k1Pr4/P1nn2RR/pp1b1bn1/4Rb2/2r1R1N1 b - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 f4 axb4 g4 h5 Bb2 hxg4 Ba3 e5 fxe5 bxa3 Kf2 f5 Kg3 b5 Kf4 g5+ Kg3 d5 e4 Kd7 h4 Kc7 c4 Kb6 c5+ Ka5 e6 f4+ Kh2 d3 h5 g3+ Kh3 f3 Kg4 d2 Kf5 b4 Kg6 b3 Kf7 g4 e7 d4 e8B f2 e5 d3 e6 g2 h6 g3 e7 Nd7 h7 Nb6 Rh3 Ra6 Ne2 g1B Nec3 g2 Na2 Nh6+ Kg6 Bh2 Nac3 g1B Qe2 d1B Rg3 d2 Nd5 Nc4+ Nf6 Rb6 Rg4 Ba6 Bh3 f1N Nc3 Nf5 Kf7 N1g3 Nh5 Bf2 Ng7 Qa8 Qd3 Bb5 Ne2 Nd4 Ng1 Bf3 Re1 d1R Qf1 Rg8 h8R Rc1 Rhh4 Rh8 Qe2 Rh5 Qe6 Re5 Qc8 Rd5 Qa6+ Kb4 Nf5 Bh6 Ng7 Nd2 Kf8 Bd3 Rg5 Nc4 Bd7 Ne4 Re2 Bc7 Rgg4 Ng3 Re1 Bb8 Bf7 Bc7+ e8R Qc6 R8e2 Qa8+ Qc8 Ka5 Bfe8 Bc2 Qb7 Bd3 Qa6+
qqN2B2/2n1q1k1/2R2R1n/Qr2B3/4bR1n/pp1b1P2/2P2n1K/R1N1r1n1 b - - 0 1 illegal: No possible last move, all moves rejected
N3R1b1/Bb1NB3/6q1/2PPb2n/krqr1pp1/B7/1Qr4n/KB1nb2R b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 e4 dxe4 Ke2 e5 Ke1 exf4 axb5 c5 Bh3 cxb4 Bg2 Bd6 Bf1 Bf8 d4 Kd7 Kd2 a5 c4 g5 Kc2 f5 Kb2 b3 h4 g3 c5 g2 b6 Kc6 h5 a4 b7 f3 h6 e3 h7 f2 Bc4 f1B Bd3 a3+ Kc3 a2 Kb2 e2 Na3 e1B Qf3+ Qd5 Bd2 f4 Bb4 Nh6 Qe3 Ra4 Qe6+ Bd6 Qf7 Be5 Rd1 a1R Be2 Qc4 Qg7 Nd7 b8B Rc1 Qg8 Rc2+ Ka1 Nf6 Rc1 Nhg4 Ba7 Nh2 Bd3 Nh5 Qg7 Bb7 Nf3 Rb8 h8B g1Q Rd1 g4 Rd2 Qe3 Re2 Qe4 Re3 Qg6 Qf6+ Bd6 Re8 Rd8 Qg7 Be5 Qf6+ Rd6 Bg7 Bg2 Bf8 Bf1 Be7 b2+ Kb1 Be2 Nb5 Bd1 Ba3 Rb4 Nc7 Be2 Na8 Kb5 Nd2 Ka4 Ne4 Bd1 Qg7 Bf3 Nf6 Bfd5 Nd7 Bg8 Rf8 Rb3 Ka2 b1N+ Ka1 Nc3 Re8 Nd1 Bf5 Re3 Qh8 Re4 Qg7 Rb6 Qh8 Rbb2 d5 Rd4 Qg7 Rb4 Qf6 Rcb2 Bb1 Rbd2 Qh4 Rc2 Qf2 Rc3 Qa2 Rc2 Qb2
6k1/R2b1bnR/2p3Pq/4BnPB/b2rB1Q1/Kb2Nn2/1N2pBr1/1r2q3 b - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 h4 f5 c4 dxc4 g5 fxe4 f4 g6 f5 gxf5 g6 f4 Rh2 Bh6 Rh1 Bg5 hxg5 Qd5 Ne2 Qd4 Ng1 Qd8 a4 Kf8 d4 b5 Kd2 h5 Kc2 e5 Kb2 h4 d5 f3 a5 c6 a6 b3 d6 b4 a7 e3 d7 f2 Nd2 h3 Qe2 e4 Qd3 c3+ Kb1 c2+ Kb2 h2 Be2 f1B Qc4 Rh4 Qc3 Ne7 Ra5 Nf5 Rc5 Kg8 Qd3 Na6 Bf3 e2 Bh5 e1N Be2 e3 Nb1 Nc7 Bd2 Ne6 Bc3 Qf8 d8B Qh6 Qe4 Nf3 Na3 Neg7 Qg4 Bd7 Be5 c1R Bd1 Bb5 Nc4 Ba4 Ra5 e2 Ne3 Rb8 a8B Rc4 Ra6 Rd4 Ra7 Rh3 Bb6 Rg3 Bc2 Rg2 Nh3 Rb7 Rd1 h1Q Nf4 Qe1 Be4 Rb8 Nd3 Rb7 Ka1 b2+ Ka2 b3+ Ka3 b1B Nb2 Bc2 Ra1 Rb8 Bb7 Bd1 Bc8 Bc2 Nd3 b2 Rc1 b1B Nb2 Ba2 Bc5 Qf2 Rh1 Bf7 Rh4 Bcb3 Rh2 Qh8 Rh7 Rb7 Bb4 Qg1 Be1 Rbb4 B1g3 Qe1 Bf2 Nd6 Rh5 Bf5 Qh4 Bc2 Nd3 Rb1 Nb2 Bcb3 Qg3 Bh3 Bg4 Qh7 Rh6 Qh8 Bh5 Bd7 Qh3 Ndf5 Qg4 Ne8 Nd5 Qg7 Rh7 Qh6 Ne3 Neg7 Ra5 Bfe8 Ra6 Bef7 Ra7
2Rn4/NnB3PP/1q2R2k/r1bqRq2/Bp1Rn3/8/1r1b1pKb/Qn2N3 b - - 0 1 legal: proof: e4 h5 d4 a5 g4 hxg4 b4 axb4 d5 c6 Bb2 cxd5 Ba3 dxe4 Bc1 e3 f3 g5 Bd3 b6 Bd2 g3 Bf1 g4 Ke2 g2 Ke1 g3 Bc1 Bb7 Qd2 Bd5 Qd4 Be6 Qd1 Bg4 fxg4 Bg7 Nf3 Bh6 Ng1 Bf8 h4 d5 a4 e5 c4 f5 c5 Kf7 h5 Kg7 a5 f4 g5 b5 g6 e4 a6 f3 a7 d4 c6 b3 c7 f2+ Ke2 b2 c8R Kh6 g7 Qb6 Rc4 Bc5 Qd3 Nc6 Rc2 Nf6 Ra4 Rhb8 Rh4 Nd8 Qc4 d3+ Kd1 d2 Nf3 g1B Ke2 g2 Ra6 Bh2 Qa4 g1Q Ne1 Qg5 Qa1 Qf5 Na3 b1N Bh3 d1Q+ Kf1 Qdd5 Re2 Rb7 Kg2 Rbb8 Bb2 Rb7 Be5 Rbb8 Ra2 e2 Bc7 e3+ Re4 Rb7 Rd2 Rbb8 Rd4 Rb7 Nf3 e1B Re5 Ne4 Bg4 Bc3 Ne1 Bd2 Bd1 e2 Bb3 Rab8 a8R Ra7 Ba4 Rbb7 Rc8 Ra8 Nf3 e1N+ Kf1 Nd3 Ne1 Qbg6 Rae6 Ra5 Re7 Qb6 Kg2 b4 Nb5 Rba7 Bb3 Ra2 Ba4 Ra5 Na7 Rb2 Re8 Bd6 R8e7 Ndc5 Re8 Ncb7 R8e6+ Kh7 h6 Bc5 Re8 Kg6 h7 Kh6 R8e6+
3nb2K/r1pk1P1n/1R3r2/b3b1PB/1BBBq3/1N6/1Rqp4/1qQN1nn1 b - - 0 1 legal: proof: h4 d5 d4 g5 c4 dxc4 a4 gxh4 e4 e5 Qb3 b5 axb5 exd4 e5 f6 Qd3 f5 Qe4 fxe4 Kd2 h5 g4 a5 b4 c3+ Ke2 a4 f4 h3 f5 d3+ Ke3 h2 Kf4 a3 e6 c2 Ke5 d2 f6 e3 b6 h4 b7 a2 b5 h3 g5 e2 b6 e1N e7 Bd7 Ne2 Rh6 Rg1 h1N Ba3 c1Q Nd4 h2 Bb4 Qc2 Nc3 Ra7 Bc4 Ng3 Nb3 h1Q Rb1 a1B Rb2 Nf1 Nd1 Bc6 Rg3 Qdd3 Rg4 Kd7 e8B+ Kd8 Ke6 Nf3 Bh5 Qe4+ Kf7 Kd7 Rf4 Bd6 Kg7 Ng1 f7 Rf6 Kh8 Be5 Rf5 Bc3 Re5 Ba4 Rb5 Nc6 b8Q Nd8 b7 Be5 Rb6 Bc6 Ra2 Bac3 Rb2 Bb5 Ba3 Ba5 Bb4 Qe1 Qa8 Qhe4 b8B Ba4 Ne3 Qeb1 Nd1 Kc8 Qd5 Be8 Qc5 Kd7 Bce2 Qcd3 Qc1 Qdc2 Bd3 Ne7 Bc4 Ng6+ Kg7 Nf8 Kh8 Ra8 Ba7 Nh7 Re6 Bb6 Rc6 Ba5 Bd4 Ra7 Rb6
3BnN2/R3Rpr1/2n2PN1/6b1/1b2B1kQ/1b1Kb1p1/q1P1rrr1/q4RR1 b - - 0 1 legal: proof: e4 c5 g4 d5 a4 dxe4 b4 cxb4 a5 h5 Be2 hxg4 Ba6 b5 axb6 axb6 Bf1 b5 Ke2 Kd7 h4 Ke6 f4 Kf5 d4 e5 d5 g5 d6 b3 h5 b2 d7 e3 h6 b4 h7 b3 Ra4 e4 Ra1 g3 Nd2 b1Q Rh2 g2 Ndf3 b2 Qd5+ Kg4 f5 Bh6 Qd2 Qa5 d8R Be6 Rc8 Qba2 Nd4 b1R Rd8 Bb3 Rd5 Nf6 Rb5 Ne8 Re5 Rg8 h8R Rg7 Re7 Nc6 Nh3 g1B Bg2 Rb8 Bb2 Rf1 Rh1 Qa8 Qe1 Rf2+ Kd1 e2+ Kd2 e3+ Kd3 Rb6 Be4 Rb5 Qb4 e1R Ne6 e2 Nf8 Rg2 f6 Rf5 Bd4 Be3 Rf1 Rff2 Bb6 Q8a3 Rd1 Q3b2 Bd8 Qba1 Qc4 Qa3 Ra7 Kh4 Rg1 g4 Nh7 g3 Nf4 Bg5 Qe6 Nd6 Re8 Q3a2 Ree7 Ne8 Ng6+ Kh5 Nh8 Kh4 Nf8 Kh5 Qf5 Kh4 Qh7+ Kg4 Rec7 Ref1 Qh6 e1B Nhg6 Re2 Re7 Rff2 Qh8 Bc3 Rdf1 Bb4 Qh4+
5b2/1Kn2qBb/1NrP1b2/rPp2N1b/1R2BbQ1/r1R1B1p1/5B2/2q1q2k b - - 0 1 legal: proof: f4 d5 e4 h5 g4 hxg4 d4 b5 a4 bxa4 c4 dxc4 d5 Nd7 f5 Ndf6 d6 Nd5 f6 exf6 exd5 f5 Bd2 f4 Be3 Rh6 Bc1 Rh8 Ke2 Kd7 h4 f5 b4 a5 b5 g5 h5 c5 h6 a3 h7 f3+ Ke3 f4+ Ke4 a2 Qb3 c3 Qb4 g3 Qc4 f2 Qd4 g4 Qd3 c2 Qc3 g2 Bd2 c1B Bd3 f1B Rh6 f3 Qc4 f2 Rh1 g3 Rh6 a4 Rh3 a3 Ke5 Qa5 Bg6 Nf6 Bh6 Ne8 Qa4 Be2 Rh1 f1Q Nd2 Qf7 Nc4 Nc7 Be3 Qe1 Rh4 Bh5 Be4 Ra5 Nf3 g1Q Bf2 Bb7 Rb1 a1B+ Nd4 a2 Rb4 Bab2 Rf4 a1R Rf3 Ra3 Rc3 Rg8 h8B Rg6 Bg7 Bh6 Nc6 Qc1 Ne7 Qge1 Nf5 Be3 Qd1 Bc6 Qg4 Rh6 Bh1 Ba1 Ke4 Bf4+ Re3 Bf6 Nb6+ Ke8 d7+ Kd8 Nh4 Ke7 d8B+ Kd6 Bg2 Qf1 Rc3 Qfe1+ Kd3 Ke5 Kc4 Bd7 Be4 Bf5 Be7 Bfg6 Nf5 Bh7 Bh8 B6g7 Bg5 Rc6 Bh6 Bf6 B8g7 Bg5 Qe2 Kf4 Qd1 Qd7 d6 Qe7 Qd4 Kg4 Qd1+ Kh3 Qf3 Kh2 Qg4 Bf4 Bg5 Ne6 Kd5 Qf7 B5h6 B4e5 Bhe3 Bf4 Bb1 Kh1 Bd3 Rc8 Bb1 Nc7+ Kc6 Rca8 Kb7 R8a6 Na4 Rc6 Nb6 Bh6 Bc2 Bf4 Be4+
r2r1N2/1bQ1PP2/1qr1p3/3qRN2/2qNr2p/B4k2/BRr1nn2/3N1K1n b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 b4 axb4 c5 e6 c6 Kf7 d5 fxe4 d6 Be7 dxe7 dxc6 Qd2 c5 Qd1 c4 a4 Kg6 f4 Kf5 a5 b5 g3 c5 a6 h5 a7 b3 Bd3 b4 Bb2 c3 Ra2 c4 Qc1 Kg4 f5 h3 f6 h2 f7 c2 Bf1 h4 Nf3 e3 Be5 b2 Bd3 b3 Nfd2 c3 Rg1 h1N Kf1 Nh6 Bg7 Qd5 Bc4 Bb7 Nf3 Nc6 Nd4 Rhb8 Be5 Rd8 Bd6 e2+ Ke1 Ng8 Ba3 Nf6 Rf1 Ne4 Rf5 Nef2 Re5 Kh3 g4 Kg3 g5 Kg2 Nb5 Nd4 g6 Kg3 g7 Kf3 Qd1 c1R g8N c2 N1c3 b1Q Rb2 Qa2 Nh6 Qb1 Nf5 Qa2 Rb1 b2 Bb3 Rab8 a8N Qc4 Nb6 Ra8 Nd7 Qd5 Ra1 b1Q Nf8 Qbb2 Bc4 Qb4 Rb1 Qbc5 Rb2 Qb6 Kd2 Qb3 Qg1 e1R Nd1 Re4 Qh2 Ne2+ Ke1 Qa4 Bb3 Qac4 Ba2 Ra1 Rb4 c1R Rb2 Rc2 Kf1 Rac1 Qg1 Ng4 Qc5 Ngf2 Qc7 Qb3 Bd6 Rc6 Bc5 Rc2 Ba3 Qbc4 Nbd4+
R3n1Nq/nB1K4/P1Ppnr2/5qb1/b1Rp4/1b3nBB/kN3b2/1Bb1Q3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 h4 exf4 g3 b5 Qd3 g5 Qd2 Ra6 Qd1 Rg6 Rh3 g4 Rh1 Rg5 hxg5 fxg3 Kd2 Ke7 Kd3 f5 e4 Ke6 c4 h5 a4 b3 a5 f4 c5 d6 g6 b4 Kc4 g2 Kb5 h4 a6 h3 g7 b2 e5 Kd5 e6 f3 e7 h2 e8B g3 Nd2 b1B Qc2 f2 Bg6 b3 Ngf3 g1B Be2 f1Q Be8 g2 Qh7 b2 Bd7 Bc2 Be8 b1N Ne4 Nc6 Qh6 Be7 Bf7+ Be6 Bd2 Nf6 g8B Be3 Rg1 h1N Ne5 Nf2 Be1 Nd2 Bd3 Nh3 Ra4 Nf4 Qh4 Rh6 Nc4 Bd1 Rh1 g1B Bb1 Qh3 Rb4 Nf3 Nb2 Bc1 Be8 Qc8 Bd7 Na7+ Kb6 Qa8 Kc7 Ba4 c6 Qf8 Bc8 Rg6 Bf7 Bge3 Rg1 Qh8 Bb7 Rh6 Bh5 Qf5 Rg8 Bg1 Ra8 Ne8+ Kb6 Bf6 Bg4 Bg5 Bh3 Bf7 Qf2 Bg8 Qd2 Be3 Bg3 Bf2 Qe1 Bf7 Nc5 Rg6 Nd7 Rh6 Ne5 Rf6 Ng4 Bg8 Nh6 Bf7 Ka5 Kc5 Ng8 Bfb3 Bf1 Ne6 Bh3 Bc4 Bc8 Kd5 Kb6 Ba2 Kb7 Kc5 Kb8 B2b3 Rc4+ Kb5 Rc3 Kb4 Bb7 Ka3 Rc4 Nb5 Kc8 Na7+ Kd7 Qb5 Bbf5 Ka2 Be4 Qf5 Bb1+
krN3qq/1BR1B3/2K1Q3/q2r1bR1/1P1Bq3/p2r1PNr/B1p5/bb4n1 b - - 0 1 legal: proof: e4 b5 c4 d5 a4 bxa4 h4 dxc4 e5 g5 e6 gxh4 Qb3 fxe6 Qb6 e5 Qxb8 e4 Ke2 Kd7 Ke3 Kc6 d4 e5 g4 h5 b4 a5 g5 h3 g6 h4 g7 a3 Bd3 c3 Ne2 h2 Rf1 h1B Ba6 a4 Nf4 a2 Ne2 c2 Nec3 h3 Nd1 h2 Bd2 c1R Re1 Bf5 Rf1 Ne7 g8B Nd5+ Ke2 e3 Bd3 e4 Be1 Rc3 Bd2 Bg7 Bc2 Rh3 Rg1 Rd3 Qc8 Rb8 Qe6+ Kb7 Na3 c5 Nc4 Ka8 Rc1 a1Q Nd6 c4 Rg5 c3 Nc8 a3 Bb3 Qa2 Bc4 Qa5 Ba6 Bg2 Rc2 h1Q Bc1 Qh2 Bb2 Qe5 Ba1 Qf6 Bf7 Qh6 Bg8 Qh8 f3 Bf1+ Ke1 e2 Kf2 e1R Ne3 Nf4 d5 Be2 d6 Red1 d7 Qb3 Nf1 e3+ Kg1 Rd5 d8B Bed3 Be7 e2 Kf2 Rd2 Rc1 Bb1 Ke3 Be5 Ng3 e1Q+ Ne2 Qeh4 Ng3 Ne2 Bf7 Ng1 Rc2 Bg4 Ke4 R2d3 Rg2 c2 Bd4 Qa2 Re2 Rb3 Re3 Bf6 Rc3 Bg7 Rc7 Rd3 Be8 Qb3 Ba4 Qc4 Bb3 Qg8 Ba2 Qhh8 Qf5 Bf6 Qe6 Bf5+ Kf4 Qc3 Bb6 Rd7 Bf2 Qc6 Be3 Qh6 Bf2 Ba1 Bd4 Qaa4 Ke5 Rd8 Rd7 Qe4+ Kd6 Qhh8 Kc5 Qa5+ Kd6 Qf4+ Kc6 Qg4 Rb7 Rd5 Rc7 Qe4 Bb7+
2N1Q1nq/1b1nRBb1/1Rb2prR/1qP1N2K/2qq4/3pbP2/B7/2k1n1R1 b - - 0 1 legal: proof: e4 a5 g4 c6 b4 axb4 d4 Nh6 g5 Ng8 d5 cxd5 g6 dxe4 Qd2 e3 Qd3 Qb6 Qd1 Qd8 Bd3 e5 Bb5 h6 Ke2 f6 Ba6 Ke7 Ke1 b6 Be2 b5 Bf1 e2 Bg5 hxg5 Kd2 Ra6 Bg2 Re6 Bh3 Kd6 Bg2 Re7 Bf1 Rf7 gxf7 Ke7 Ke3 Ke6 Kf3 Kf5 h4 e1Q a4 d5 c4 b3 a5 g4+ Kg3 Ke4 a6 g5 a7 b4 a8B b2 h5 b3 c5 Nd7 h6 Qe2 h7 Qc4 f3+ Ke3 Bb7 d4 Ra2 e4 Ra4 Bg7 Na3 b1Q f8R b2 Ba6 Bb7 Qb3+ Kd2 Nh3 e3 Qb5 e2 Rg1 e1N Nf2 Kc1 Rb4 Qbd3 Be2 b1B Ne4 Qdb3 Nd6 B1e4 Bf1 Bec6 Re8 d3 Re7 Qa4 Nc8 Qaa5 Qa4 Qab5 Be2 Qe8 Bd1 Qd8 Bb3 Qf8 Kh2 g3+ Kh3 g4+ Kh4 g2 Kh5 g3 Ba2 Qd8 Nc2 Qf8 Ne3 Qd8 Ng4 Qf8 Rf1 g1B Ne5 Be3 Rg1 g2 Rb3 Nh6 Rb2 Rg8 h8R Qd8 Rf1 g1Q Rb4 Qg2 Rg1 Qb2 Rb3 Qbd4 Rb2 Qba5 Rb6 Qab5 Rh7 Bf8 Rh8 Rg6 Rhh7 Ng8 Rh6 Qbb4 Bb5 Bg7 Qa8 Qe8 Ba4 Qbb5 B4b3 Qc2 Bf7 Qcc4 Rh8 Nh6 Rh7 Qh8 Qb8 Ng8 Rh6 Qbb3 Nd6 Qba4 Qe8 Qab5 Nc8
4BK2/3p2pb/B7/3b1P1n/1pq1N1qB/2BnRrQR/qkP3nr/2Nb4 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e3 axb4 Qf3 e6 Qe4 fxe4 g5 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Kd1 g4 Kd2 Ne7 Ke1 Ng8 Ke2 Ke7 h4 Kf6 a4 b5 h5 e3 Kd3 g3 Ke4 b3 h6 g2 a5 e5 Kd5 b4 Kd6 b2 a6 d3 a7 e4 h7 e2 Be3 e1Q Ra4 d2 Rh2 d1B Rh4 Na6 Nc3 b1B Nh3 g1Q Na2 Qc3 Bc1 e3 Bb2 e2 Ng5 e1N Ra3 Ng2 Nc1 Nc5 Rh3 Qa5 Ba6 Ba2 Re3 Rb8 a8B Nd3 Bf3 Bd5 Bh5 Bcb7 Be8 Ra8 Rb3 Qa2 Rh3 Qgd4 Ba1 Qcc4 Bc3 Ne7 Re3 Ng6 Rh3 Rf8 h8Q Rd8 Qh4 Rh8 Bf7 Rdf8 Be8 Rh5 Qf2 Bbc6 Re3 Rh2 Qg3 Bg8+ Kc7 Bh7 Ne4+ Ke7 f6+ Ke6 Kd8 Kd5 f7 Bb7 Nd6 Qe4 Ra3 Qf5 Ne4 Qg4 Bd2 Kd4 f5 Bd5 Rb3 Rh8 f8B N6f4 Be7 Nh5 Bh4 Rh3 Qh2 Rf3 Ke7 Rf2 Rh3 Rf3 Bde1 Nc5 Re3 Nd3 Nd2 Kc3 Qg3 Kb2 Ne4 Qb5 Bd2 Qbc4 Bc3+ Ka3 Be1 Nf6 Rh1 Bhg8 Bg5 Kb2 Kf8 Rh3 Bh4 Nh5 Rh2 Bh7 Bd2 Ngf4 Rf2 Rh1 Rh2 Ng2 Rh3 Rh2 Bc3+
rn1N2r1/P2R2p1/1NN1RQp1/1PBq3b/3N1p2/b2k1nB1/1r6/2qq2bK b - - 0 1 legal: proof: c4 d6 b3 Qd7 c5 Qd8 c6 Bg4 Ba3 Be6 Bc1 Bc8 cxb7 Qd7 g4 Qa4 g5 Qd7 Ba3 Qd8 Bc5 dxc5 f4 e5 g6 exf4 b4 hxg6 Bg2 a5 Bd5 a4 Bb3 axb3 Kf2 Kd7 Kg2 Ke6 h4 Kf5 a4 Ke4 d4 f5 b5 b2 d5 c6 a5 c4 a6 c5 d6 c3 d7 c4 h5 c2 h6 c1Q h7 c3 a7 c2 Ra6 Qc7 d8B Bc5 Qf1 Qe5 Re6 Bd4 Bb6 Bc5 Na3 b1Q Nc4 Qbb2 Nf3 Qe1 Nd4 c1B Na5 Ne7 Nac6 Rg8 h8N Qd1 Nf7 f3+ Kg1 Qbd2 Nfd8 f2+ Kg2 B5a3 Bc5 Qb2 Rh2 Be3 Kh1 Qbc1 Rh8 Nd5 Rh5 Nf4 Rg5 Nh3 Rg3 Bd2 Rd3 Be3 Rd2 Ng1 Rd3 Nd7 b8B Nf3 Bbd6 Nb8 Bc7 Kd5 Rd2 Qe4 Bg3 Kc4 Rd3 Qd5 Rd2 Bf4 e4+ Kc3 e5 Be3 Re8 Bd7 e6 f4 e7 Bh3 Qg1 Bf1 Qh2 Kc4 Qh4 Kc3 Qf6 Kc4 Re2 Kd3 Re1 Be2 Rf8 Kc4 e8N Kd3 Nd6 f1R+ Kg2 Na6 Nc8 Nb8 Nb6 Bg1 Kh1 Rf2 Re8 Nd2+ Re4 Bh5 Rf1 Rg2 Re6 Nf3 Rfe1 Rb2 Re7 Rb1 R1e6 Rb2 Rd7
2r1n1N1/2Rnn2n/1R3NB1/6rb/KPP1pq2/1p1n1p1R/R1q4k/bB3Q2 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 e4 e5 g4 h5 gxh5 c4 Qf3 d6 Qb3 cxb3 Bb2 exf4 e5 Qg5 e6 Qd8 Be5 dxe5 Kd1 Ke7 h4 Kd6 c4 g5 d4 a5 d5 f5 e7 e4 e8B Ke5 h6 f3 d6 Kf4 d7 Kg3 h5 f4 h7 g4 h6 a3 Nc3 f2 Be2 f1N Nh3 f3 Bg6 a4 Na2 Ra5 Bf7 Ne7 Nc3 a2 Rc1 a1N Bg6 a3 Nd5 a2 Rb1 Nh2 Nhf4 Qc7 d8R Nc2 Rd7 a1Q Bd3 Qb2 Ra1 Ne1 Ra2 Bg7 Nf6 Rg5 N4d5 Qf4 Rc7 Nd7 Bb1 Nd3 Ng8 Qf2 Re1 Ba1 Rg1+ Kh3 Ndf6 g3 Ra6 Ng4 Rb6 Qb2 Rg2 Qa2 Rf2 g2 Rc2 g1N Rd2 Nb2+ Kc1 Qg3 Rg2 Qh4 Rg3+ Kh2 Kd2 Nh3 Kc3 Bb7 Kd4 Bd5 Kc3 Bf7 Kd4 Nde5 Kc5 Nbd3+ Kb5 Qc2 Ka5 Nd7+ Ka4 Nf5 Ne7 Rb8 h8R Rc8 Neg8 Ne7 Rh7 Be8 Rg7 Bf7 h7 Be8 h8Q Bf7 Nd5 Ngf6 Rh7 Ne8 Ndf6 Qf4 Rh5 Rg4 Ra5 Rg5 Raa7 Rf5 Qg7 Ng5 Raa6 Nh7 Qh6+ Qh4 Qc1 Rg5 Qf1 Qf4 Bh5 Bd5 Kb5 Ndf8 Ra2 Nd7 Ka4 Be6 Bf7 Bg4 Bg6 Bh5 Rh3#
3qR1BN/Kp2P1rr/8/1P2n2n/1b5R/2Q2k1N/pp1qB1nb/r2Rn2R b - - 0 1 legal: proof: b4 e5 c4 g5 a4 c5 h4 gxh4 f4 d6 Bb2 Bd7 Bc3 Bb5 axb5 exf4 Bd4 cxb4 c5 Qa5 c6 Qd8 Bc5 dxc5 Kf2 Ke7 g4 Kd6 d4 Kd5 c7 Ke4 c8R a5 d5 h5 e3 f5 d6 b3 g5 f3 d7 f4 g6 h3 g7 h2 Be2 c4 Rc7 b2 Ra2 a4 Nh3 a3 Rc8 c3 Rc6 h4 Ng1 c2 Ra1 c1B Rc2 h3 Bc4 a2 Bf1 Nf6 g8B Bb4 Bf7 Nh5 Bg8 Rh7 Qe1 Nc6 Qc3 Ne5 Na3 Rc8 Rb1 Rc7 Nc4 Bd2 Rd1 Bc1 Ke1 f2+ Ke2 Rg7 Rcd2 Rh7 Rd6 Bd2 Rh6 Bd6 Qa3 B2b4 Qc3 f3+ Kd2 Rg7 Kc2 Rh7 Kb3 Rg7 Be2 f1Q Ka4 f2 Rh7 Qg2 Rh8 Qe8 d8R f1N Rh7 Qe7 Re8 Qd8 Rh8 Qf2 Rh6 Qe1 Rh8 Qd2 Rh6 Bbc5 Ka5 Bb4+ Kb6 Rh7 Ka7 Rcg7 Nb6 Bc7 Nd7 Bcd6 Nf8 Bc7 Bec4 Bcd6 Ne2 Kf3 e4+ Ne3 Bd3 Ng2 Ng6 Bc7 Nh8 Bcd6 Rhe1 h1R Nf4 h2 Nh3 Rg1 Qc8 h1N Qc3 Nf2 Rf1 Ng6 e5 Bc7 e6 Bh2 e7 Ne5 Rfe1 Rf1 Re4 Rh1 Rh4 Rf1 Bg6+ Nfd3 Bf5 Ne3 Bg6 Ne1 Bd3 Rfg1 Rg6 Rf1 Rg1 N3g2 Rh1 Nc2 Rb1 Rc1 Ra1 Nce1 Rb1 Rc2 Rd1 Rc1 Qc2 Rb1 Qc3 Ra1 Be2+
5bKb/1b3pBR/QNR4N/3Bq2b/qB1n3r/P3p2P/1qpBbk2/1r6 b - - 0 1 legal: proof: f4 a5 b4 axb4 d4 d5 g4 h6 c4 dxc4 e4 Nd7 d5 Ndf6 g5 hxg5 d6 Nd5 exd5 gxf4 Ke2 f3+ Kd2 Kd7 Ke1 Ke8 Kd2 g5 Ke3 Kd7 Kd4 b5 Ke5 c5 a3 c3 h3 g4 Bd2 c2 Bf4 c1B Kf5 e5 Ne2 b3 Ng1 f2 Nc3 e4 Ke5 g3 Be2 f1B Nf3 g2 Na2 g1Q Ne1 e3 Bc4 b4 Ng2 b2 Bb3 b1B Nh4 c4 Bg5 c3 Bf6 Rb8 Nf5 Be2 Qd3 Qg5 Bg7 Ne7 Rg1 Bb2 Qa6 Rh4 Rg2 Bbd3 Rc1 Bb7 Rg4 Qf4+ Kf6 Qe8 Rg6 Qe4 Rh6 Bh5 Rh7 Nc6 Nh6 Bde2 Bc4 b3 Nb4 Nd4 Rc2 Kd8 d7 Kc7 d8B+ Kd7 Bb6 Kd6 Ba5+ Kc5 d6 Qa4 d7 Qe8 Rd2 c2 d8B Ba1 Rd3 b2 Nd5 b1Q Bd2 Qb2 B8a5 Qeb5 Bb3 Qe8 Nb6 Qe4 Nc4 Kd5 Bab4 Qee8 Rc3 Ke4 Nb6 Kf3 Rc6 Kf2 Bh8 Bd6 Kg7 Bf8+ Kg8 Qe5 Bc4 Qa2 Nd5 Nb3 Nc7 Qg3+ Bg7 Rd8 Bdc3 Rd1 Bd2 Rb1 Bd5 Bc3 Na8 Qb2 Nb6 Bf6 Nf5 Qge5 Bh6 Bh8 Bg7 Nd4 Nh6
2N1qB1b/7Q/n1kRpn2/p1q5/2np1B1r/r3RPBr/Bq1P2KN/2n5 b - - 0 1 legal: proof: b4 c5 a4 f5 c4 h5 g4 hxg4 e4 fxe4 Bg2 b5 Bf1 bxa4 Qe2 Ba6 Qd1 Bb5 cxb5 cxb4 h4 g5 f3 d5 Kf2 Kd7 b6 e6 b7 e3+ Kg3 b3 h5 b2 h6 a3 h7 e2 Qc2 e1N Nc3 b1N Rh4 a2 Qf5 Nf6 Nge2 Kc6 Qd3 Bg7 Nf4 Qe8 Qg6 Nd3 Nh5 Na6 b8B Na3 Nb5 Nc4 Ba3 Nc1 Kg2 g3 Bf8 g4 Bf4 d4 Rb1 a1Q Nd6 Qa2 Nc8 Qb2 Kg1 g2 Ng3 Qb4 Kf2 g1R Qf5 Rh1 Kg2 Qc5 Rb6+ Kd7 Bd3 Rh3 Nf1 g3 Rd6+ Kc7 Bb1 Kb7 Kg1 g2 Ba2 Kc7 Bg3 Kb7 Re4 Kc7 Kf2 g1Q+ Ke1 Qh1 Kf2 Kb7 Re3 Kc7 Rd8+ Kc6 Nh2 Qd1 Rd5 Qb3 Kg2 Qb2 Rd7 Rg8 Rd8 Bh8 Qd3 Rg4 Rd7 Bg7 h8B Rgh4 Qb1 Rb8 Qd3 Rb3 Qh7 Ra3 Rd8 Nc7 Rd5 a5 Rd7 Na6 Rd5 Bh6 Bhg7 Bf4 Bh6 Be5 Rd8 Ng4 Bg5 Bh8 B5f4 Nf6 Rd6+
6BR/1N2N1b1/1pPNqRq1/Q1b2qPb/N3B3/r3p1k1/n3qp1r/1K1b4 b - - 0 1 legal: proof: f4 a5 e4 g5 d4 f6 b4 axb4 g4 c6 h4 f5 h5 fxe4 Bd2 c5 f5 cxd4 Be3 Nc6 Bf4 gxf4 g5 Ne5 Bb5 Ng6 hxg6 Qb6 Bf1 Qd8 Kd2 h5 Kc1 e5 c4 Ke7 a4 Kd6 f6 h4 g7 b6 a5 f3 f7 d3 a6 f2 a7 h3 Be2 h2 Na3 b3 Nb1 e3 Ra5 d2+ Kb2 e4 c5+ Ke5 c6+ Kf4 Ka1 d5 Rb5 b2+ Ka2 d4 Rf5+ Kg3 Bb5 e2 Ba4 e1B Nh3 e3 Bc2 d3 Rb5 Ne7 g8B Nd5 Nc3 Nb4+ Kb1 Bg7 f8N Qf6 Na4 Qe6 Re5 Na2 Rf5 Bd7 Qc1 d1B Nf4 d2 N4g6 Be8 Ne7 Beh5 Rf6 Qf5 Be4 Rh7 Rf1 h1Q Qc5 Qhh3 Rh1 Qe6 Nd7 Qhf5 Qb5 Bhf3 Ndc5 Qg4 Bd3 Bde2 Nc3 Qh5 Rh4 Qg6 Nb7 Rh8 Kc2 Rh5 Ra4 Rh2 Rh4 Bg4 Rh8 Bh5 Qd5 Beg4 Kb3 d1Q+ Ka3 Re8 a8N b1Q Nc7 Rf8 Qb5 Ra8+ Qa4 Qb5 Be4 Qbf5 Kb2 Qd3 Ka1 Bd1 N7b5 Qe2 Kb1 Ra5 Qb4 Ra3 Na4 Bc3 N5d6 Bd4 Qc3 Bc5 Qa5
5R2/prpBR1r1/1R1p2np/2N3bQ/2n1N3/6bq/2RPKP2/1k1nBrr1 b - - 0 1 illegal: Other
N4nRn/5Ppp/r3Q2k/p5qP/r1q1N3/4pN1K/2R1Nb2/B1rB2rb b - - 0 1 legal: proof: b4 c5 a4 d5 g4 f5 c4 fxg4 e4 dxe4 a5 b5 a6 bxc4 b5 c3 Be2 c4 Bxc4 Bxa6 Bf1 Bc8 d4 Kf7 f4 Kg6 Kf2 e5 Kg3 c2 h4 a6 d5 e3 b6 e4 h5+ Kh6 b7 e2 f5+ e3 f6 e1R d6 Qc7 f7 Qc4 d7 Qe4 d8N Qc4 Qd7 Ne7 Ne6 Ng6 Nf3 Bb4 Bb2 c1R Be2 Rg1+ Kh2 g3+ Kh3 g2 Ned4 Be1 Nc3 Ra7 Rh2 Bf2 Qe6 Nd7 b8N Bb7 Bd1 Nf8 Nde2 a5 Nd7 Ra6 Ne4 Rg8 Bf6 Nh8 Rb1 Bd5 Rb8 Ra1 Nfe5 Ra4 Nb6 Nfg6 Qe7 Qc2 Ned7 Be1 Ng5 Rc8 Nf4 Rh1 Na8 g1Q Ne5 Qb3 Qe8 Rc1 Qe6 Qc4 Rg8 Bf3 Ne4 Qg5 Qg4 Rg1 Rc2 Bh4 Ne2 Bf2 Qe6 Bh1 Nf3 Nf8 Ba1+
3N1b2/B1p1k3/r2p1pq1/Rn2q1p1/P3B1b1/3r1n1R/1Q2P2b/bNKR3R b - - 0 1 legal: proof: c4 h5 f4 e5 d4 exf4 b4 Qf6 g4 hxg4 b5 Qe5 b6 axb6 dxe5 b5 Bh3 bxc4 Bf1 c3 h4 b5 a4 g5 h5 f3 e6 f6 h6 d6 e7 b4 h7 c2 Kd2 g3 Ra3 g2 Re3 f2 Rh6 b3 Rh5 b2 Re4 Bg4 Re6 Ra6 Rh3 Nh6 Rd3 Nd7 Re5 Nf5 Nf3 g1B Ra5 Nd4 Ne5 Bh2 Bg2 f1Q Nc6 Ne5 Be4 Nb5 Nd8 Qf5 Rd5 Kd7 e8R Qe6 Qg1 Qe7 Qd4 Nf3+ Kd3 Qe5 Be3 c1B Kc2 Bd2 Qb4 Be1 Ba7 Bc3 Rd1 Bd4 Nf7 Bc3 Rb8 Ke7 Nd8 Rg8 h8R Bd4 Rh3 Rh8 Rg3 Rh3 Rb6 Nh4 Rgg1 Rd3 Rh1 Nf3 Qb3 Bc3 Rc6 Bd4 Rc3 Re3 Bf5 Ng1 Na3 b1Q+ Kd2 Qbe4 Nb1 Rg3 Rd3 Ba1 Qb2 Rh3 Kc1 Re3 Bd7 Qg6 Bc6 Rh3 Rf3 Rg3 Be4 Rh3 Rf2 Rd3 Rg2 Nf3 Rg3 Qg7 Rh3 Qg8 Qd2 Qg6 Qb2
BK1n1rRq/p5n1/N1qQ1Pn1/2p1k3/2P3B1/q1pnNB2/4p3/1b1Rb2B b - - 0 1 illegal: No proof kernel
r1r5/pbkP2N1/3q3B/2p4R/qrp4B/3prB1K/b1Q2P1b/1NR3Bn b - - 0 1 illegal: No proof kernel
5Q1k/2r1p3/3P3p/1B1pr2n/K4nqR/Np1Bqp1R/2nBP2b/b3BN2 b - - 0 1 illegal: No proof kernel
5qb1/1Rn5/bb1n2NP/NbBn2n1/1k2n1K1/1Pq3b1/r1rNR1Br/4N1Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 e4 Kd6 c4 Kc5 h4 d5 e5 a5 e6 g5 h5 f5 e7 a3 e8N a2 b3 d3 Qc2 d2 Ne2 d1N+ Kg2 a4 Nec3 a3 Rh2 f3+ Kg3 f2 Qb2 f4+ Kg2 f3+ Kg3 d4 Ng7 d3 Ne4+ Kb4 c5 d2 c6 Ne3 c7 d1N Ne6 Na6 Bg2 f1B Ng7 f2 Rh1 Nc3 Ne8 Ne7 Qc2 Ne3d5 Nc5 Ne4+ Kh2 Bc4 Ne6 f1B Qe2 g3+ Kh3 Nf5 Nd2 Nfd6 Nf6 g4+ Kh4 Bb5 Qe3 Bfc4 Bf3 g2 Ng5 g1N Qd3 g3 Qe3 g2 Ne8 Nh3 Rh2 g1B Re2 Qe7 Qa7 Bb6 Bg2 Bh6 Bb2 Qf8 Ngf3 Bf4 Ne1 Nhg5 Bd4 Bh2 Rd1 a1Q h6 a2 Bf2 Qc3 Be3 Be6 c8N a1R Ne7 Bg8 Kg4 Bg3 Ng6 Ra2 Qg7 Nac7 Bc5+ Ka5 Rc1 Ba6 Qd4 Bcb5 Qg1 Rh7 Rd1 Rf7 Rc1 Rf2 Rd1 Rc2 Rc1 Nf5 Nd6 Ra7 Bf1 Rh2 Bg2 Bd3 Nb7+ Kb5 Nef3 Nfd6 Na5 Bc4 Rf1 Bd3 Ne1 Ra8 Be3 Kb4 Rf7 Bdb5 Rd7 Nce6 Ra7 Nec7 Rb7 Ra7 Nac4 Ra8 Rb8 Bb7 Bf2 Ra3 Na5 B7a6 Rb7 Raa2 Bc5+
1N1nQ3/1R1Nn1qb/3P2b1/q1n2nNP/4rq2/NB5K/1qqb1R2/r1n1Bk2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 Kg2 Kf6 d4 Kf5 h4 Ke4 a4 b5 h5 g5 e3 c5 a5 f5 a6 c3 a7 b3 d5 c2 d6 b2 Ra2 c4 Ra5 b4 Ra4 b3 Be2 f3+ Kh2 g3+ Kh3 f2 Ra6 f1N Qe1 g4+ Kg2 f4 Nf3 c3 Qf2 Bh6 Nh4 f3+ Kg1 g2 Rc6 Bf5 Ra6 Ng3 Kh2 Qa5 Rg1 Bh7 Re1 Nc6 Rd1 Nge7 Re1 Nd8 Rh1 Re8 Qf1 f2 Bc4 Ngf5 Qe1 f1Q Be2 g3+ Kh3 Qf4 Rf1 g1Q Na3 b1Q Bc4 g2 Rf2 b2 Bd2 c1N Nf3 c2 Rb6 Nd3 Rb7 c1N Bb3 Nc5 Ng5+ Kd3 e4 Qc2 e5 b1B e6 Qb2 Qe5 Qd1 Be1 g1Q Qh8 Qdc2 Qg8 Rc8 a8N Rc6 Qg6 Ra6 Nb6 Ke3 Nd7 Ra7 Rf1 Ke2 Nb8 Qgd4 Rf3 Qg7 Rf2+ Kd1 Nc4 Nc8 e7 Qfe5 Ne6 Bd2 Kg4 Ng3 Nf4 Qb5 Ne2 Qf4+ Kh3 Ra1 Nd4 Qa5 Ba4 Qcb3 Ne6 Bc2 Qf7 Bcg6 Na3 Q3c2 Bb3 Nf5 Qf8 Qfe5 Ng5 Qf4 Rf3 Ke2 Qf7 Rf8 e8N Rh8 Nf6 Re8 Rf1 Re4 Nfd7 Nce7 Rf3 Qa8 Qe8 Qa5 Re3+ Kf1 Re2 Qh6 Rh2 Qhg7 Rf2+
1R2rN2/1P2nB1N/b1BqqQ2/R2r1bbr/2n1bn1B/2b1P3/2nn2B1/k6K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 b4 Ke6 g4 Kd5 Kg2 Kc4 b5 d5 c3 h5 e3+ d3 b6 a5 g5 f5 b7 h3+ Kh2 d4 g6 h4 g7 f3 Qe1 Kb3 c4 d2 c5 d1Q c6 f2 c7 d3 Qd2 f4 Bg2 f1B Be4 a3 Qe1 f3 Qd2 a2 Qf2 a4 Bf5 d2 Nc3 a3 Be6+ Qd5 Qe2 f2 Qg4 Rh5 Qg5 Ne7 g8B Ba6 Na4 Nbc6 Bg4 Bf5 c8B Qe6 Qg6 Ne5 Be2 Nc4 Qg5 Bh6 Qg3 Bg5 Bd7 Re8 Nf3 f1N+ Kg1 h2+ Kf2 h3 Bb2 Kc2 Rg1 h1B Qh4 h2 Bc6 Bg2 Nb6 h1R Rb1 a1B Nd7 a2 Bf6 Bc3 Bf7 a1N Rb5 Rh3 Ra5 Kb2 Bd3 Nc2 Nf8 Kb1 Bde4 Rh2 Rd5 Ka1 Rh1 Rh3 Kg1 Rg3 Rc5 Rg4 Bed5 Rd4 Be4 Rd5 Qf4 Qc1 Ra5+ Qa3 Qe5 d1N Qd4 Bh6 Bh4 Nfd2 Qf6 Nf2 Ng5 Nd3 Ngh7 Nf4 Rh3 Bh1 Bg2 Bg5 Rg3 Bh6 Rg8 Bg5 Bh3 Bf3 Bg2 B3e4 Kh1 Red8 Nd7 Rb8 Rc8 Ra8 Ndf8 Rb8 Rc7 Rbd8 Rc8 Re8 Rc5 Qb4 Rb8 Qa3 Rb5 Qad6 Ra5+
K4B1b/1B3NPn/2qqR1q1/2rrn2r/P2qR2Q/4N1q1/2RRb2n/1k4br b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 a4 e5 f5 b5 c3 h5 f6 b3 f7 h3 g5 d3 Ke3 Kc4 g6 d5 Qd2 h2 Ra2 h4 Nh3 b2 Be2 Kb3 c4 b4 c5 d4+ Kf2 e3+ Kf3 e4+ Kf4 Qd6+ Kg5 Ba6 Kf5 Bg7 f8R Nf6 c6 Nbd7 c7 Ne5 c8R Rh5+ Kf4 Nh7 Rb8 Bh8 Bg4 e2 g7 e1N Rfe8 e3 Ke4 e2 Na3 b1Q Nc2 N1f3 Rec8 e1B Rc6 Bf2 Qf4 d2 Ra1 d1Q Re8 d3 Rc5 d2 Re1 h1Q Qf6 Nh2+ Bf3 Rc8 Ba3 Bg1 Qf4 Be2 Ng5 h3 Rb5 Rc5 Nf7 Qbc1 Qh6 Qg2 Re6 Qg3 Ne3 Kc3 Ra2 b3 Rb6 b2 Rc6 Kb3 Qg5 Kc3 Qh4 b1Q+ Nc2 Qb6 Ne3 Kb3 Bh1 Qc3 Bb4 Qdc1 Bf3 d1R Rd2 Q3b2 Rc8 Ka2 Ba3 Kb1 Bh1 Rd5 Rcc2 Qbc6 Bg2 Qbb6 Bf3 Qcb2 Bh1 Rc1 Bc5 Qdc7 Bf8 Q7d6 Be7 Qcc3 Rf6 Rd3 Bf8 Qdb4+ Nc4 Bd1 Rc6 Nf1 Re3 h2 Rf6 Qa1 Ra2 Be2 Rg6 Qc2 Re6 Qc7 Bf3 h1R Bg2 Nh2 Bf3 Rb3+ Kd5 Qcg6 Bg2 Rcc3 Rac2 Qbb8 Bf3 Qcb7+ Kc5 Rb6 Bd5 Rd6 Be4 Qd7 Bb7 Rd5+ Kb6 Qbd6+ Ka7 Q7c6 Ka8 Qb2 Re4 Qbb6 Qf6 Qd4 Ne3 Rcc5 Qh4
1q2N2r/b1P3k1/q5qr/1Nr1NQb1/P2B3R/1R1bn2B/K2n1q2/1r1N1r1n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kd2 d5 e4 f5 h4 Kf7 c4 g5 Kc2 b5 Kb3 d3 a4 f3 e5 g3 h5 d2 h6 g4 c5 f2 c6 f4 c7 f3 h7 g2 e6+ Kg7 e7 d4 Be2 f1R Bb2 g3 Qc1 d1R Qc6 f2 Rh3 Nh6 Qb6 Rc1 Nf3 g1B Bc4 g2 Na3 Ng4 Be6 Nd7 Qa6 Nb6 Bc4 Ne3 Bf7 Nbc4 Rh4 Bf5 Be6 Bd3 Bg4 Qb8 Be6 Nd2+ Ka2 Rc5 Rb1 b3+ Ka1 b4 Qc8 Ra6 Bg4 Rh6 Bc3 b2+ Ka2 Nec4 Bh5 Ne3 Rc1 b1R Nc4 b3+ Ka3 b2 Rc2 Rbd1 Bg6 b1Q Qf5 Q1b7 Ka2 Qa6 Bf7 Rb1 Nfe5 Be4 Rh2 d3 Qf4 Ng4 Be8 Rcb5 Rc1 Re1 Qf5 f1Q Rh5 Rg8 h8N Nf3 Nhf7 d2 Qe6 d1N Nfd6 Ba7 Bd7 g1Q Nb7 Nd2 Rh3 Nde3 Rh4 Rc5 Nbd6 Rgh8 Bd4 Bd3 Rc3 Nf2 Nb5 Qg6 Nb2 Nh1 Nd1 Qf2 Rb3 Rf1 e8N+ Kh7 Nf7 Be7 Ne5 Bg5 Qf6 Kg8 Bh3 Kh7 Qf5 Kg8 Ned6 Kg7 Ne8+
n1kr3r/3N4/1RRb1brP/qb5K/2B1q1PN/B3bb1n/N3rbN1/6rQ b - - 0 1 illegal: No possible last move
2N3rB/2q3b1/2b1Pqqq/3kqnBb/BQ1B3q/2PKb1N1/2nR4/r2n1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 e4 Ke6 h4 f5 b4 d5 e5 g5 h5 a5 h6 d3 h7 a3 b5 a2 b6 g3 b7 g4 Na3 a4 Rh3 g2 Nb5 d4 Rh4 g3 Rh5 a3 Rh3 f3 Rh2 f2 Qe2 f4 Qe1 f3 Nd6 Qc7 Qe2 Bg7 Bb2 Ne7 Nc4 Na6 Rd1 a1Q Ne3 a2 Nd5 Nb4 Qe3 Rg8 h8B Bd7 Nc3 Bc6 Nce2 Kd5 Nh3 g1Q e6 g2 Rh1 Nf5 Nc1 Ra4 Be2 f1Q Qh6 Qff2 Nb3 Ra5 Qf4 Qg3 Re1 f2 Bd1 f1B Rh2 Qh4 Qg4 Be2 Nc1 Ra3 Qf4 Bh5 Nf2 Ra6 Bc3 Qb2 Qg4 a1Q Rf1 Ra4 Ne2 Qbc1+ Ke1 Qh6 Bd2 Q4f6 Ne4 Qb2 Nd6 Ra1 Nc8 Qc3 Nc1 Qb2 Bf4 d2+ Ke2 Qc3 Be5 Qg3 c3 Qgh4 Ba4 d3+ Kf3 d1Q+ Ne2 d2 b8B Qa5 Ba7 Nc2 Bf4 Qde1 Bfe3 d1N Bd2 Bf7 Qb4 Qc7 Bd4 Bg6 Nc1 Qeg3+ Ke2 Qge5+ Kd3 Bh5 Ne2 Qgf2 Bf4 Qfg3+ Bfe3 Qgg6 Bg5 g1B Ng3 Be3 Rd2
r7/2nbb1R1/P1n1rN1q/1r2P2q/b1qn4/3B4/1kN1B1Kb/q1BQRnB1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Ke5 a4 d5 c4 f5 h5 b5 a5 g5 a6 d3 h6 Kd4 c5 f3 h7 g3+ Ke1 g4 e5 f2+ Kd2 f4 c6 f3 c7 g2 Ba3 g3 Qe2 b3 Be7 b4 Bg5 b2 Bh4 b3 Rh2 Be7 Nc3 b1Q Bf6 b2 Ra3 Bd7 c8B Qf8 Bb7 Qa1 Bh4 b1R Ra5 Nf6 Ne4 Nc6 Rh3 Qh6+ Ng5 Rb5 Ra3 Ne8 Rc3 Nc7 Rc1 Rhe8 Kd1 d2 Rb1 Kc3 h8B d4 Nh7 Rd5 Bg7 Rb5 Rc1+ Kb3 Qd3+ Kb2 Ne2 g1B Nf6 g2 Rg3 Bh2 Bf8 g1N Bg5 Ba3 Bf4 Re6 Rg7 Be7 Be3 Nd8 Be4 Nc6 Nf4 Ne2 Ng2 Rbb8 Ne1 Rb5 Bh3 f1N Bg1 f2 Nc2 Nfg3 Bg4 f1Q+ Ne1 Qff4 Nc2 Nf1 Bef5 Qe4 Qf3 Qd5 Bd3 Qc4 Bh5 Neg3 Qh1 Nf5 Ke2 d1Q+ Kf2 Qg4 Qd5 Qgg6 Bhe2 Qgh5 Be4 d3 Re1 d2 B4d3 d1B Kg2 Nfd4 Qf3 Bd8 Bd6 Be7 Ba3+ Kb3 Bc1 Kc3 Na3 Ba4 Nc2 Kb3 Qe3 Ka2 Qd2 Kb1 Qd1 Ka2 Bf4 Kb2 Bc1+
2n3r1/b1n1P2b/3N2bN/K1B2B1R/b3N3/1NP1Qrqn/2r3R1/r1r1nr1k b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 g4 Ke6 e4 Ke5 a4 f5 g5 d5 c3 b5 a5 h5 a6 f3 g6 Kf4 a7 Kg3 e5 f4 e6 f2 g7 f3 Qa4 d3 Ra3 h3 Bg2 f1R Qa5 d4 Ra1 h2 Qa4 b3 Qc4 b2 Qb4 f2 Qe7 h4 Nf3 h3 Qb7 b4 Qb5 b3 Qd5 Ne7 g8N Bd7 Nh4 Na6 Ra5 Ba4 Qc5 Qc7 Nf3 Nc8 Qd5 Bc5 Ne7 Rg8 Rg1 h1N Nh4 Kh2 Qd8 Qg3 Rb5 Nc7 Na3 b1B Be4 b2 Nc4 Bbc2 Nd6 b1B Ba3 Rc1 Rb3 f1R Bf5 Nf2 Rg2+ Kh1 Qe8 h2 Nd5 Nh3 Nf6 Rf3 Nfe4 Rb8 a8N Ba7 Rb4 Rcf1 Rc4 Rb2 Nb6 Ra2 Rc5 Ra1 e7 R1f2+ Kc1 d2+ Kb2 d1R Qf8 d3 Nd7 d2 Qh6 Rc1 Qe3 d1R Rd5 Rdd2 Ndc5 Rff1 Nb3 Rdf2 Bc5 Re2 Bg4 Ref2 Rh5 Bd3+ Ned2 Bh7 Nhf5 Bd3 Nh6 Bdg6 Bf5 Re2 Bb1 Ref2 Ba2 Re2 Ka3 Ref2 N2e4 Rfc2 Kb4 Nf4 Rf5 Nd3+ Ka5 Ne1 Rf2 Kg1 Rh5 h1N Re2+ Nf2 Bb1 Kg2 Rg5 Kh1 Rh5+ Nh3 Rg2 Rca2 Ng5 Rb2 Bf5 Rbc2 Nge4
q1k2B1R/qNR2K2/b3r2Q/rn2N1P1/1rqBr1P1/bBp1b3/3n1nB1/r7 b - - 0 1 illegal: Other
6r1/1R2Br2/1b3P2/3k4/Kn1q2BR/1n1Pqrn1/bbB2pN1/QbqBNb2 b - - 0 1 illegal: No proof kernel
1b1Nrb2/bp2q1bb/P1r2R2/1b2rn2/1PBQB1Nb/4n3/K4RB1/1n3B1k b - - 0 1 illegal: No possible last move
Nr2nRb1/N1r1k1PP/qB1r1rp1/4r2r/1Bn2nB1/2B1b3/Q3Rrq1/4K3 b - - 0 1 illegal: No proof kernel
b6b/k3pN1P/B6R/2n5/3bP1B1/KQ2bNnq/nBqb4/brbBR1r1 b - - 0 1 illegal: No proof kernel
Q1nKbN1B/4p1Pn/1N1n4/b1NN1rr1/1P5n/3rR2B/3kbn2/1bq1R1b1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 Kf7 g4 Ke6 f4 Kd5 f5 a5 g5 h5 g6 h3 c3 d3 Ke3 Kc4 Kf4 d5 Kg5 h4 f6 h2 f7 h3 Nf3 a3 Ng1 a4 Qd2 d4 Qg2 a2 Be2 a3 Qf3 e3 Qf6 Rh5+ Kf4 Bf5 Ke5 Bg7 f8N Nc6+ Kf4 Qc8 Nd7 Rg5 Bg4 d2 b3+ Kd3 c4 d1R c5 e2 Qf7 e1N Qe6 Na7 c6 Ng2+ Kf3 Nf6 c7 Nh4+ Kf4 Nh7 Nf3 Rf1 Rg1 h1N Rg2 h2 Rc2 Nf2 Nbd2 h1B Nh2 Bc6 Nf8 Be8 Rb1 a1B Bb2 a2 Qc6 Rb8 Ba3 Bc3 Bb2 a1N Ne4 Ba5 b4 Nb3 Qa8 Nc5 Re1 Nb7 Rce2 Nd6 Re3+ Kc2 Bc3 d3 Bh3 d2 Ng4 d1B Ngf6 Be2 Nd5 Bd4 Nc5 Be4 Ba1 Kd2 Bb2 Bb1 Ba1 Qd8 c8N Qc7 Ncb6 Rd8 Bb2 Nac8 Ba1 Bg7 Be5 Bh6 Bh8 Qc6 g7 Qc7 Nb7 Qc1 Nc5 Nc4 Nc7 Rd3 Ncd5 N4d6 Ncd7 Rg4+ Ke5 Bf4+ Ke6 Rg5 Nc5 Bh2 Bf5 Bg1 Bh3 Bf7+ Kd7 Be8+ Kd8 Nfe4 Be6 Rff5 Bd7 Nf2 Be6 Rf4 Bg4 Rff5 Bh3
b2Q4/b7/3KB3/q1Np1q2/rnPnb2R/PBN5/RbB1b1nk/Bb1qr3 b - - 0 1 illegal: No proof kernel
1r6/1r2rQR1/q1brq1rB/B1P2RnN/nr2p3/2q1b2b/1N1P2B1/1k4BK b - - 0 1 illegal: No proof kernel
4r3/3N1nnn/1qnkN2r/R1p1b1B1/1B6/2PR1bPB/Bq2n2K/Qnq1r3 b - - 0 1 legal: proof: f4 g5 e4 a5 b4 axb4 h4 gxh4 e5 d6 Na3 dxe5 Nb1 exf4 Be2 f3 Bd3 Qd6 Bf1 Qd8 Kf2 Kd7 a4 e5 d4 f5 c3 h5 d5 c5 d6 b5 a5 h3 Kg3 b3 a6 b2 a7 e4 Qd2 b4 Ra4 h2 Qg5 e3 Ra5 b3 Ra6 f4+ Kh3 f2 Bd3 f1R Qg6 h4 Ra4 e2 Ra3 e1N Be3 f3 Ra6 f2 Be2 Nf6 Bh6 Nh7 Bd1 Nc6 Bg7 Bb7 Ra5 Qb6 Qh5 Nd3 Qg6 Re1 Bh6 f1Q Nf3 Nde5 Nd4 Nf7 Na3 b1Q Nc4 b2 Bg5 Rae8 a8B Bg7 Ne6 Be5 Bb3 Qc2 Qh6 b1N Ba2 Qcb2 Qh5 Qf4 Qd1 Qfc1 Rf1 h1N Rf3 Ng3 Kh2 h3 Rd3 Rhg8 Qa4 Rg6 Qd1 Rh6 Qa4 Kc8 d7+ Kb8 d8B Nh5+ Rg3 Ng7 Qd1 Bd4 Rd3 Kc8 Qa4 Kd7 Ne5+ Kd6 Qd1 Na7 Nd7 Bf3 B8d5 Nc6 Be4 Nh8 Bf5 Nf7 Kg3 h2 Bh3 h1N+ Kh2 Ng3 Qa4 Ne2 g3 Q2b5 Qa3 Qb4 Qb2 Q4b5 Qa1 Qbb2 Ra8 Qa6 Ba5 Qa7 Bb4 Qb6 Re3 Bf6 Ra5 Be5 Rd3+
nn1r2nn/2qB4/2b5/RPq1B1Rr/N3P2n/1knQR1K1/RN3p2/5qbb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 b4 Kd6 g4 Kd5 g5 Kc4 e4+ d3 g6 h5 b5 a5 g7 d5 c3 f5 Qg4 f3 Na3+ Kb3 c4 d4 c5 h3 c6 d2 c7 d1N+ Kg3 h2 Be3 f2 Nf3 d3 Nh4 d2 Qf3 f4+ Kg2 Bc5 Ng6 h4 Ne7 Nb2 Qg4 d1N Nc6 f3+ Kh3 Bd7 c8R Nd3 Be2 f1N Bd2 Nc3 Bf4 Qc7 Ra2 Bg1 Nd8 Ne3 Qe6+ Ned5 Be5 Nf4+ Kg4 h3 Rc2 Rh5 Bf1 Bc6 Qe8 Nb6 Re2 Ng6 Re3 Nh8 Nb1 a3 Re1 a2 Nb7 a1Q Kg3 a4 Qd8 a3 Nd6 a2 Re3 Qb2 Be2 a1Q Nc4 Qba3 Nb2 Qb4 Qd3 Qc5 Na3 Qf1 Na4 Ra7 Nc4 Na8 Ncb2 Ra5 Nb6 Ra4 Rf8 Rd4 N6a4 Rd8 Rf6 Be8 Ra6 Bc6 Kg4 Bf2 Rg1 h1N Ra5 h2 Rg2 Ng3 Kf4 h1B Rh2 Ne7 g8R Bg1 Rg5 Ngf5 Kg4 Nh4 Kg3 Ng8 Bd1+ Ka2 Rd2 f2 Bg4 Kb3 Bd7 Rh7 Rd1 Rh6 Ra1 Rh5 Ra2
Bq2nn1r/1Nn4n/Q1Rn1p1r/1bBN1qR1/1n1bN1r1/bN3P1P/1k5K/8 b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 a4 Kd7 d4 Kc6 a5 Kd5 a6 g5 h3 b5 a7 c5 Qd3 e5 Qd2 c2 Ke2 Kc4 d5 Kb3 d6 e3 d7 g3 Kf3 e4+ Kg2 b4 Rh2 g4 Bb2 c1Q Bb5 e2 Ra2 e1N+ Kh1 e3 Bc3 e2 Qh6 c4 Bg7 c3 Bd4 c2 Nf3 g2+ Kg1 Nd3+ Ne1 Nf4 Be3 Na6 Bb6 Ng6 Qd2 Nc7 Ba6 Rh6 Qf4 Nf6 Ra1 Nfe8 Bc4+ Kb2 Ra5 f6 Qd6 b3 Ra6 Qf4 Qd5 c1N Bc5 Na2 Qh5 Nb4 Ra5 Qf5 Bd6 Ba6 Rb5 Qb8 Nf3 e1N d8N Be7 Rh1 Nf8 Kh2 g1R Bd5 Rg3 Rb6 Bb5 Ng5 Rg1 Nb7 Rg3 Rg1 Nf3+ Kh1 Rg2 Qh4 g3 Ne4 Ng5 f3 Ngh7 Nbd2 Na2 Qf4 Nfe6 Rf1 Kc2 Be5 b2 Nbd6 b1N Nc5 Na3 Bd4 Qb7 Bc6 N8g7 Ndb3 Nc4 Rg1 Rh8 a8N Nge8 Qe5 Nef8 Nce4 Qbc8 Qe6 Qb8 Be3 Kb2 Qc8 Rd2 Qa6 g2+ Kh2 Re2 Bb7 Rc2 Rc6 Rf2 Nf7 Ba3 Nb6 Ncd6 Nd5 Nb4 Nd8 Rf1 Bc5 Re1 Ned2 Re4 Ba8 Rd4 Nb7 Rc4 Re1 Rf4 Ne4 g1B+ Kh1 Be3 Kh2 Bd4 Rg1 Rfh4 Rg7 Rg4 Rg5
q2nKb2/R1b1Q3/P5Bn/1p2q2k/2qBr2q/rN1P3b/q2B1BN1/2q1R2n b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 c5 f4 c3 a4 g3 h4 e3 a5 c2 d3 g2 Bb2 c1Q Rh2 e2 f5+ Kh5 f6 g5 f7 g4 Qb3 e1Q+ Be2 c4 Ra3 c3 Qd1 b3 Ra4 c2 Rb4 Nh6 Ba1 b2 Nh3 g1N Nd2 b1Q Rd4 Qa2 Rd7 e6 Re7 Nc6+ Kf6 e5 Bc3 e4 Nb3 e3 Bd2 Qd5 Rd7 Nd8 Ra7 Qc4 Rf2 Qca3 Rf1 c1Q Bf3 e2 Be4 g3 Nf4+ Kg4 h5 g2 Qc2 Nh3 Bg6 g1B Ng2 Nf2 Qc3 Rh7 Qb4 Bh2 Qe7 Nh1 Rg1 Bc7 Rf1 Nf5 h6 Qf2 Rg1 e1Q Rf1 Rh8 h7 Qfe3 Rg1 Nh6 Rf1 Rg8 h8B Q1g3 Re1 Qh2 Bf5+ Kh5 Be4 Bh3 Bh7 Rc8 a6 Rg4 Be4 Qf3+ Bf5 Qa8 Bh7 Re4 Bg7 Kg4 Kg6 Qac5 Bd4 Qce5 Bf2 Bg7 f8B Qhg3 Bd4 Qh4 Bf2 Bf6 Bg7 Bg5 Qf7 Be7 Bf6 Bc5 Qe7 B5d6 Kg7 Kh5 Kf8 Bc5 Ke8 Ba3 Qe6 Bf8 Qe7 Qed5 Ba5 Be5 Bd2 Qcd4 Qa3 Rc3 Qe7 Q5c4 Nc5 Ra3 Nb3 Bc7 Bg7 Qdd5 Bgd4 Qe5 Bg6+
N5b1/2Pr1nrb/3P1bR1/1b2q2p/1N3R2/rb2nB1k/b1R2nQ1/B2qR1K1 b - - 0 1 illegal: No proof kernel
3K2bB/bBp3k1/Bb4qr/2r4P/bqN3r1/4nbP1/NbRQ1nq1/2B2R2 b - - 0 1 illegal: No possible last move, all moves rejected
5n1B/Kp1n1q2/Bn2b2q/2b2b2/3Q1rRR/1Rr2P1r/2b1PR2/NbNb1k2 b - - 0 1 illegal: No proof kernel
4BrNb/qpKb1Nn1/2Qrr1P1/1BN2N1r/1P5R/1b2r3/r5R1/1q1q1n1k b - - 0 1 legal: proof: h4 c5 f4 g5 d4 cxd4 f5 gxh4 f6 a5 b3 a4 Nc3 a3 Bb2 axb2 Nb1 exf6 Kf2 f5 Ke1 f4 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd3 Kf5 a4 Kg4 e4+ Kg3 c4 h5 c5 f5 a5 f3 e5 h3 e6 h4 b4 h2 e7 f2 e8B f4 a6 h3 a7 f3 c6 Rh6 c7 Bg7 Bb5 Nc6 Ra3 Bh8 Ra1 Nge7 Qa4 Nf5 Ra2 Re6 Be2 f1B Nc3 b1Q+ Rc2 f2 Nf3 Ne3 Ne5 Ne7 Qb3 N7f5 Qa3 Ng7 Ba4 Qd6 Nb5 Qb6 Rg1 h1R Nd6 Kh2 Be8 Bd7 g4 Bg2 c8N f1R g5 Rf8 Rc1 Re1 g6 Kg1 Ne7 h2 Ndf5 h1R Bf1 Rh5 Nf7 Kh1 Qa6 Bf3 Qa4 Bd1 Ng8 Qc5 Qc6 Qb6 Kd2 d3 Kc3 d2 Bb5 Nf1 Kd3 Qa6 Kd4 R1e3 Kc5 Qa4 Ra2 Bb3 Kb6 d1R Rg2 d4 Rc4 d3 Kc7 d2 Rcg4 Rb8 a8N Qaa1 Nb6 Ra8 Qf3 Qd4 Qc6 Ra2 Na4 Qa7 Rf4 Rc1 Qc4 d1Q Re4 Rcc3 Qc6 Rcd3 Nc5 Rdd6 Rh4+
B2K4/k1NB2r1/5R1B/2R1rr2/Pp1b2Bn/N1bPbqQ1/bn6/1rb1r1q1 b - - 0 1 illegal: No proof kernel
b2rq2b/3n1bNQ/1NBq2Nk/R7/1N2P2K/rr1b3p/nB1qP2r/r4R2 b - - 0 1 illegal: Other
Kb1n3B/6r1/1QN2nBr/3b3n/P5R1/1b3qpP/3n1N1n/rBR1kbBq b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 Kf7 f4 Kf6 c4 Kf5 c5 d5 h3 g5 a3 b5 c6 e5 c7 g3 Kd2 e3+ Kd3 b3 Qe2 g2 Qf3 b2 Be2 g4 Nc3 b1N Qf2 b4 Ne4 b3 Qf1 b2 Nc3 e4+ Kc2 d3+ Kb3 d4 Kc4 d2 Kb5 d1B Kb6 d3 Bd2 Rh6+ Kb5 Bb3 Nd1 Qf6 Be1 d2 Bf2 Nc6 Kb6 Bce6 Kb7 Bed5 Bf3 e2 Nc3 d1Q Ba7 e1N Qb5 e3 Qb4 e2 Qb6 Nd8+ Ka6 Nd3 Ne4 e1N Ne2 g1R Nf2 Nd2 Rc1 b1B a4 g3 Bh5 Nef3 Rc4 Bd6 Rd4 Nh2 c8B+ Qe6 Bd7 Nf6 Bc6 Qf7 Bg6+ Ke6 f5+ Ke5 Bd7 Bb8 Rg4 Nf4 Nd4 N4h5 Bb5 Bbe4 Bd3 Bg2 Bb1 Bf1+ Nb5 Nh7 f6 Qf8 f7 N7f6 Bge4 Qa3 f8B Qa1 Bg7 Qf3 Rg5+ Kf4 Bg6 Be5 Bh8 Bb8 Bbd3 Qb1 Nd4 Ke3 Rg4 Qbd1 Ka5 Qe1 Bb1 Qc1 Nc6+ Ke2 Ka6 Ke1+ Qb5 Nf7 Kb7 Nd8+ Kc8 Qcd1 Bd4 Ra6 Qb6 Ra7 Bc5 Rg7 Be3 Nf7 Kb7 Nd8+ Ka8 Ba6 Re4 Kf1 Ba2 Bd6 Nd3 Bb8 Rg4 Ke2 Bd4 Qdf1 Bc5 Q1g2 Bd4 Ra1 Rc1 Qh1 Bg1 Bac4 Nf2 Ba6 Nd1 Ke1 Bab1 Bf1 Nf2+
1nq2q1k/N4r2/RB2q3/1Q2rPpb/KN2q2P/1n1b1Rb1/1b2b3/1R1Br2R b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 Kf7 h4 e5 f4 b5 a4 d5 c4 g5 Kc2 Kg7 Kb3 e3 c5 e2 f5 e1Q a5 d3 a6 g3 a7 d4 c6 e4 c7 d2 Bd3 g2 Bc2 e3 Qh5 d1B Ra6 e2 Ra2 d3 Rb2 d2 Nh3 g1Q Nc3 Ne7 Ne4 Ba6 c8R Rh7 Rh2 Qc5 Rc6 Kh8 Qf3 Rf7 Qc3+ Bg7 Qf6 Qc8 Re6 Nec6 Qc3 Q5f8 Rg6 Na5+ Ka2 Nb3 Qc6 Bd4 Rb1 Bb2 Bd3 Bc2 Bc4 d1B Nf4 Bd3 Rf2 Qh1 Rf6 e1B Nd5 Bh5 Nec3 Qe4 Be3 Qee6 Rf3 Bg3 Bb6 Bf1 Qe8 Ba3 Bd4 Nc5 Re1 b3+ Kb1 b4 Bf2 b2 Kc2 b1R Be2 Qd6 Nb5 b3+ Kc3 Qdd7 Rb6 Qe6 Qd7 Bc1 Kb4 Ba3+ Ka5 b2 Rb7 Rc1 Rd1 b1Q Qc6 Bh3 Rh1 Re1 Bd1 Bf1 Bg1 Be2 Be3 Nb3+ Ka4 Na1 Qc4 Qbe4 Bc5 Nd7 Qb4 Rb8 a8R Bc1 Rb6 Rb7 Ra7 Nb8 Bg1 Rbd7 Rab7 Rc7 Na7 Bad3 Ra6 Rc5 Qc4 Ba3 Rb1 Nb3 Nb4 Re5 Qb5 Bb2 Bb6
2NBnBK1/rq1r2b1/1rb3B1/2n1qp2/B6r/R2kbQ2/r2Pb1P1/4qN1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 h5 e4 f5 b4 a5 Ba3 c5 Nf3 h3 Nh2 h4 Rg1 f3 Bd3 f2 Qh5 f1B Rh1 Bh6 Bc2 c3 Qg5 Kc4 b5 Rh7 b6 Nd7+ Ke6 Qe8+ Qe7 Be3 e5 Be2 b7 Ra7 b8B Ngf6 Rd1 Bb7 Rg1 Bc6 Bb3+ Kd3 Bd1 c2 Nf3 c1Q Ra2 h2 Bd6 h1Q Bb3 h3 Rd1 c4 Ng5 c3 Re1 h2 Rf1 c2 Ne4 Qb2 Ra1 c1R Nbc3 Rb1 Ng3 Qh8 Re1 Ne8 Nd5 Qf1 Qd8 h1R Bc7 R1h4 Bf8 a3 Ne7 a4 Qa8 a2 Bd8 a3 Nc8 Qh1 Rd1 Qe1 Nf1 Rf7 Ba4 Qb7 Bb3 Rf6+ Ke7 Rd6 e6 Qe5 Kf7 Nc5+ e7 Rd7 Kg8 Rb2 Rac1 a1R Rc3+ Ke4 Rb1 a2 Rd1 Rab1 Rd3 a1B Rc3 Nd6 e8B Rba2 Bg6 Ne8 Rdc1 Bh6 Rh3 Be3 Rh1 Kd3 Rc4 Qe4 Ra4 Bg7 Ra3 Rbb2 Qb8 Qe7 Qf4 Qe5 Qf3 Kd4 Ba4 Rb6 Bb3 Kd3 Ba4+
Qb1qR3/2n5/r2nPBNN/B2r2Rb/1nqr1BPb/1p2kb2/1Kn1B3/5n2 b - - 0 1 illegal: No proof kernel
nb1rR1rR/1N3KBq/4PP1r/3Bp1R1/1q2n2n/R1r1Q3/bk5b/1r3n1N b - - 0 1 illegal: No proof kernel
K1RB2q1/2b4r/4pb1n/2bN1krB/P3Q1NR/PqbN4/1n2N2q/1b2n2n b - - 0 1 illegal: Other
1r1b2qb/2n1r3/qP5k/1R3N1n/qnNRNB2/q2P4/b1pQKNB1/1n2n3 b - - 0 1 illegal: No possible last move
q2Q1r2/2B2Bbr/1P1n1P2/2q2q1p/2B3nq/1N3RRr/1qNKb3/3B1knn b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 b4 Kf7 g4 Kf6 c4 Ke5 g5 d5 c5 h5 g6 a5 c6 d3 f4+ Kd4 c7 e5 g7 h3 b5 a3 f5 e3 f6 e4 b6 h2 Qf3 a4 Qg2 e2 Qh3 d2+ Kf2 d1R Bd2 e1Q+ Kg2 e3 Kf3 e2 Bh6 Kd3 Qd7 d4 Qd6 a2 Bf4 a3 Bg5 Ne7 g8B Qh4 Bh7+ Nf5 Nh3 Qe7 Bf4 Ba6 c8B Nc6 Qc5 Bg7 Bd2 Ne5+ Kg2 Qe6 Bb7 Raf8 Ba5 Ng4 Bg8 Rh7 Rg1 h1N Kf3 Qc6+ Qd5 Qc5 Bf7 Bc4 Bg2 e1N+ Kf4 Ke2 Qd8 d3 Bbd5 d2 Ng5 Nf3 Ne6 Rf1 Bc3 d1Q Be5 Qc2 Bc7 Nd6 Nd2 Rf2 Rab1 a1Q Nb3 a2 Rbf1 Bd3 Bc4 Qab2 Bg8 a1Q Bf7 Qa8 Bh3 Nge5+ Bg4 Rh2 Rg3 Rh3 Rf2+ Ke1 Ned4 Ng1 Ke3 Qcb1 Bd1 Be2 Rff3 Qf5 Bfd5 Nf2 Bf7 Kf1 Bc2 Ng4+ Kd2 Qba1 Bd1 Qab1 Rc3 Qb2+ Nc2 Nh1 Rcf3+
Kbq4b/3Q3k/prrN1Bq1/1R1b1n1n/P1RB4/4q2P/1N1R2n1/1q1Rbq2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 h5 Nc3 h4 Be2 h3 Bf1 fxg6 Bg2 hxg2 Nb1 g5 Qf3 g4 Qe2 Bd7 Qd1 Bc8 Ke2 Kf7 Ke3 Kg6 f4 c5 b4 e5 d4 g3 a4 c3 f5+ Kh7 b5 g5 b6 a6 f6 c4 d5 c2 d6 g4 h3 c3 f7 Nf6 d7 Nc6 b7 Nh5 b8R Ne7 Qd2 Bb7 Qe1 Bg7 f8R Nf5+ Ke2 e3 Kd3 e4+ Kc4 e2 Kc5 e3 Qf2 e1B Na3 e2 Rf7 Bd5 Rab1 Qc8+ Kb6 Rd8 Bb2 c1Q Ba1 c2 Qf1 Qe3+ Bd4 c1B Rf8 Bh8 Nf3 g1Q Nc4 g2 Rh2 g3 Nfe5 Ba3 Nb2 Bd6 Rb7 Rb8 Ka7 Qgf2 Rc1 g1Q Rc4 g2 Rb5 Rb6 Nf7 Qh1 Rg8 g1Q Rg3 Rg8 d8B Rg6 B8f6 Bf4 Qg2 Qff1 Nd6 Rh6 Qe4 Qhg2 Rg8 Qg6 Rd8 Bfg3 Qg4 Rc6 Nf7 Bb8+ Ka8 Qh1 Rf2 Qhe4 Rh2 Qb1 Nd6 Bf2 Nd3 e1N Nb2 Bh4 Rd2 Ng2 Rd1 Be1 Re8 Qef4 Re2 Qe3 Red2 Qge8 Be7 Re6 Bd8 Qg6 B8f6 Rb6+ Nb7 Rec6 Nd6 Nfg3 Qe6 Nf5 Qd7+
q4r1n/B1n4P/1rRP3k/2N1bbR1/2q2bBK/2Qp3b/3NRr2/1n1rR2b b - - 0 1 illegal: No proof kernel
3n3r/Rnq1b1P1/B1bB1rnq/3r1kQ1/3BN3/2nNb2R/3BpP2/K5bn b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 b4 Kd7 g4 Ke6 d4 c5 Kd2 h5 Kc2 a5 Kb2 h3 g5 c3+ Ka2 h4 b5 a3 g6 h2 b6 c4 b7 c2 d5+ Kf5 d6 e5 d7 h3 g7 Ra6 Be2 a4 Bf3 c3 Bf4 c1B Qe1 e3 Bd1 c2 Nf3 e4 Be5 Rf6 Bd6 Ne7 Ng1 Ng6 Be2 Qc7 Bf1 Be7 Bc5 Nc6 Bd6 Nd8 Bc4 Bd2 Nc3 c1N+ Kb1 a2+ Kb2 a3+ Kc2 Ne2 Rd1 a1R Rb1 a2 Nb5 Nc3 Be5 Bc1 Qe2 Bd2 Rb4 Rd1 Kb2 a1N Qe1 e2 Qf1 e1B Nf3 e3 Ra4 e2 Qg2 Bf4 Ra7 Bed2 Ne1 Bde3 Qg3 Rdd6 Bd4 Nb3 Nd3 Nc5 Ka1 Rd5 Qh4 Qc6 b8B Bb7 Bbe5 Qc7 Qh6 Bc6 Nd6+ Kg4 Ne4 Kf5 Bd6 Ncb7 Ba6 Bg3 Rc1 h1Q Re1 Qh2 Rh1 Be5 Qh4 Qf4 Qh6 h2 Qh4 Qh6 Qg5+ Ke6 Rg1 h1N Rg3 B5f4 Rh3 Bh2 Ba3 Bed6 Bc1 Bg1 Bd2 Nf7 d8B Ba3 Be7 Nfd8 Bd6 Bb4 B6e5 Be7 Qh4 Kf5 Bd6 Qh7 Qg3 Qh6 Qg5+
6nb/Q2P4/q2R4/bR1K3b/Bp1N2nB/1r1qbnRk/1R1Pq1r1/nb3N2 b - - 0 1 illegal: Other
1q1bnbb1/N3RNPb/2n4n/2nKB3/1k4r1/N2nQ1rp/1N3P2/nB2b1R1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 d5 g4 Kd7 c4 Kc6 a4 Kc5 g5 h5 a5 e5 g6 b5 g7 b3 a6 d3+ Ke3 d2 a7 h3 Qf3 d1N+ Ke2 e3 Kd3 b4 Ra3 e2 Qg2 e1B Qf3 d4 Ke4 d3 Qg4 d2 Ra4 h2 Qf5 h4 Bd3 b2 Bc2 h3 Bb3 Nf6+ Kf3 Be6 Nc3 b1B Qf4 e4+ Ke2 e3 Kf3 e2 Qg4 Bg8 Nb5 Ne3 Nd4 d1N Qg2 Rh4 Ra2 Ne8 Qg3 Rg4 Bc2 b3 Bb2 Ba5 Nb5 e1B Na3 Nc6 Be5 Kb4 c5 b2 Ra1 Rb8 a8N Nf5 Nb6 Nh6 Nbc4 Rb5 Qf4 Qb8 Ke4 Bd8 Nf3 Rb6 Rg1 h1N Ng5 Ng3+ Kd3 Rb7 Nf7 Ne4 Qe3 Re7 Ra2 Re6 Ra1 Reg6 Ra2 Rg3 Ra1 R6g4 Ra2 Na5 Kd4 Nc6+ Kd5 Bb6 Bd3 Bd8 Ra1 Bc2 Ra2 b1N Nb2 Nbd2 Ra1 Nb3 Ra2 Ncd4 c6 Na1 c7 Nc6 c8N Nc5 Na7 Bb1 Bf1 Bg6 Bd3 B6h7 Bb1 Qb5 Na4 Qb8 Rc2 Nb2 Re2 Nbd3 Nb2 Ne6 Rc2 Ba5 Rc5 Bd8 Ra5 Nec5 Ra6 Nd4 Re6 Nc6 Re7
4nB1k/1Kbq1Nn1/1pn1B1nb/1Q4q1/3r1NrB/5B2/bq2PRP1/qrR5 b - - 0 1 illegal: No proof kernel forced: bxLB
3q2R1/N1rk3N/bnB2R2/b3BR2/1n6/nprrR1nn/2P2P2/rQKbn3 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Kd2 h5 a4 b5 g4 d5 g5 e5 a5 b3 g6 e3+ Ke2 b4 a6 b2 g7 e4 a7 b3 Na3 b1N Bd2 d3+ Ke1 d4 Qg4 h3 Kd1 h4 Nc4 e2+ Kc1 e1N Qg3 h2 Bb4 d2+ Kb2 d1B Nb6 e3 Nd5 h3 Qc7 e2 Bd2 d3 Qb7 Nd7 Bg2 Nb6 Ne3 Nf3 Qd5 e1N Qe4+ Kd7 Qe5 Ne7 g8R Ba6 Bc3 d2 Ra5 Rh7 Ng4 Ned5 Ne2 Rc8 a8R Ng5 Nd4 Nb4 Nb5 Na3 Na7 Bg7 Rf1 h1N Rf8 h2 Rf6 Nh3 Bf3 Ng2 Qe1 Ng3 Raf5 h1R Be5 Rc3 Rg1 Bh6 Rc8 Re7 Rc4 Rg7 Re4 Rf7 Qf1 Ne1 Re3 Bf8 Rg2 Bd6 Bd5 Bc7 Be4 Bf3 Bb7 d1R Rg1 Rdd3 Kc1 Bd1 Bc6+ Ke7 Rh6 Rh7 Nf6 Rg7 Nh7 Rf7 Bf3 Kd7 Rg6 Na4 Rg2 Ba5 Rgf6 Nb6 Bd5 Ke8 Ba8 Rfc7 Bb7 Kd7 Qg1 Ne4 Rg8 Ng3 Bc6+ Ke7 Re4 Be2 Ba8 Nf3 Kb2 Kd7 Qf1 Rg1 Re3 Rh1 Qa1 Rc1 Qa2 Ra1 Qb1 Ne1 Kc1 Bd1 Bc6+
1r2b2b/rb5R/1rB1N2K/1n3b1P/k1Bq2p1/N5rn/1P1R1BQ1/bn1Bb3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 g3 e4 a5 h4 g5 c4 f5 c5 d5 h5 Kd7 e5 Kc6 e6 g2 e7 a3 Nc3 f3 Rh2 a2 Qb3 a4 Nb1 a3 Be2 g4 Qb4 d3 Ke3 d4+ Kf4 f2 Kg5 f1N Qa5 f4 Qa7 Kb5 c6 f3 c7 f2 Bf4 Bg7 Be3 Nh6 Nd2 Na6 Nc4 d2 Rd1 a1R Rh3 d3 Bb6 a2 Nf3 g1B Qb7 Ra7 Rg3 Nf7+ Kg6 Ng5 Bc5+ Ka4 Bb4 Nh3 Ne3 Bf5+ Kf7 Rc1 c8B a1B e8B+ Rc6 Bc5 Nc7 Rb1 d1B Ne5 Nd2 Rg2 f1B N5c4 Bf2 Nd5 Be1 Na3 Bb3 Rc1 Nb1 Bb6 d2 Be6 Nb5 Nf4 Rd6 Rh2 Bg2 Rc7 Bge4 Be3 Rb6 Qc6 Bd4 Qc2 Bb7 Bc6 Bc3 Bd4 Qd5 Kg7 Rb8 Kh6 Qe4 Bc5 Bh8 Rh7 Qe5 Bg1 Qd4 Qe4 Ba2 Rf2 Bc4 Qg2 Bd5 Bg8 Bf7 Bf3 B7g6 Bc4 Be8 Ne6 d1R Qf1 Rd2 Qg2 Rd3 Rd2 Re3 Bf2 Rc3 Bfe2 Rg3 Bd1+
n2N2Kb/1n1b1r2/1Pp1b3/3Pb2R/1b1B1BB1/k1R1Bnb1/1r6/1r1rqQN1 b - - 0 1 illegal: No proof kernel
b3q3/2rPbQBn/4pn1P/1b1n1b2/1N1k2R1/Br2B2r/1r2r1rR/KBN5 b - - 0 1 illegal: No proof kernel
1b6/pQ3r2/4N1Bb/1rnnP2r/qP2r3/1R2rbnk/1RK3N1/2BNr1Nn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 c4 Kf6 e4 Kg5 g4 h5 b4 f5 c5 d5 c6 h3 c7 Kh4 g5 f3 g6 f4 g7 a3 Bb5 h2 Nc3 f2 Be8 f1N+ Kc2 f3 Bf7 d3+ Kb1 a2+ Kb2 f2 Kb3 d2 Qc2 d1R Be6 d4 Nd5 d3 Nb6 d2 Bd5 Qe8 Qc3 Bg4 c8N Nf6 g8N Bh6 Bb7 Bf3 Qe5 Ng3 Na4 f1R Qa5 Rde1 Kb2 d1R Kc2 Nbd7 Rb1 a1B Qa6 Nd5 Ne2 Rd3 Nac3 Nc5 Nge7 Kh3 Nc6 h4 Nd6 Rb8 Nf5 Re3 Ncd4 Qa4+ Rb3 Rhe8 Nd1 Bb2 Bc6 Rb5 Ne6 Be5 Qb7 Bb8 Bd7 Re7 Be8 Rf7 Rg1 h1N e5 Re4 Rg2 Rg1 Nec3 R1e3 Ne2 Re1 Rh2+ Kg4 Rf2 h3 Nh4 h2 Ng2 Kh3 N2d4 Rf8 Bg6 Rf7 Re2 Nf2 Rd2 h1R Ne2 Rh2 Kb1 Nfh1 Rdb2 Kg4 Kc2 Rh5 Ngf4 Kh4 Ng2+ Kh3 Ng1+
3qB1q1/1b2n1R1/2br1bnR/pPk1N1Pq/3r1Rr1/1q6/QB2K1b1/1N1R3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 c4 Ke7 e4 Kd6 g4 h5 b4 a5 b5 f5 e5+ Kc5 g5 d5 e6 d3 e7 h3 e8R h4 Na3 d2+ Kf2 d4 Ra2 f3 Bd3 f4 Kf1 h2 Bb1 d3 Bc2 h3 Nb1 a3 Re7 f2 Qe2 d1R+ Qe1 d2 Ke2 f1B+ Kf2 f3 Be4 Bb7 Rf7 Be7 Rc2 a2 Bb2 a1R Be5 Bf6 Ne2 Ra6 Ng3 Bg2 Rg7 Rd6 Rf1 h1B Bg6 h2 Qe2 Nc6 Nf5 Nge7 Nh4 Ra4 Be8 Ng6 Bb2 Nce7 Rc1 Rh5 Ke3 f2 Nf3 Rh4 Ne5 Rhd4 Qe1 Bgc6 Qe2 Bhg2 Rh1 Rg1 Rd1 f1Q Qf2 Qe1+ Qe2 Qh4 Qf2 Qh8 Ke2 Kb4 c5 Qg8 Qf3 Rf1 Qd5 Rg4 Qa2 Rg1 Rc1 Rd1 Rf1 h1Q Rf2 Rg1 Rd1 Qh5 Rf5 Rh1 Rf4+ Bce4 c6 Kc5 c7 Bec6 c8R Rad4 Ra8 Qhh7 Ra6 Qh5 Rg1 d1Q+ Ke3 Qdb3+ Ke2 Qb6 Rd1 Qd8 Rh7 Re6 Ra7 Red6 Rh6 Bc8 Rd7 B8b7 Rc7 Nf5 Rch7 Nfe7 Rg7
1K4N1/4qB1R/1nr3Pb/R1q1n3/1Q1B4/Pb5k/q1n1rpbR/2bN1qRn b - - 0 1 illegal: No possible last move
B1q1B3/B1p3k1/qnb4P/n2NR1q1/1n1P3R/KB6/bn1rN2b/bq2Q2r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 b5 e4 g5 h4 f5 a5 Kf7 a6 b3 e5 c3 d3 b4 a7 g3 e6+ Kg7 e7 b2 e8B g4 Nf3 b3 Bg6 c2 Kd2 g2 Kc3 g1Q Nfd2 f3 Bf7 g3 Bd5 f4 Bf7 g2 Bh5 f2 Nf3 Ne7 Kb4 Nbc6+ Ka4 Na5 Ne5 f3 Qe2 Bb7 Nc4 Qc8 Kb4 Nec6+ Ka4 Nb4 Bd2 c1N Rh2 Bc6+ Ka3 Rh7 Nc3 b1Q Ne3 b2 Be8 Bc5 Qe1 Bd4 Be2 f1Q Nb5 f2 Ng4 Bc3 d4 Ncd3 Bd1 Qe2 Bd7 f1N Bb3 Ne3 Be8 Ned5 Ne3 Nb6 Nd5 Qge3 Ra2 g1B Bc1 Rb8 a8B Qg5 Bf4 Rh5 Bd6 Rh7 Rh3 Bh2 Bc5 Qee6 Re3 Qa6 Re5 Qeg4 Bh5 Re8 Bg6 Qgc8 Bh5 Rf8 Be8 Rf2 Ra1 Rd2 Ra2 Na4 Ba7 Nb6 Ra1 Qc1 Ra2 b1B+ Rb2 Ba2 h5 Qb1 Rc2 Ba1 Nbc3 Nb2 Ne2 Rh8 Rc3 Rf8 Rh3 Rf1 Rh4 Rh1 h6+
1N1b1n1q/nBRn1KBN/nkqR2Q1/1r1nqp2/r5P1/1B1bp2r/3B2P1/8 b - - 0 1 illegal: Other
1Bn3K1/n4n1P/r1P3QN/bB4rq/5nb1/pRb1kNq1/p3R2R/nR2q3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 h4 g5 b4 d3 c4 g3 c5 d2 e3 f3 c6 g4 h5 f2 b5 g2 e4+ Kf4 e5 f5 h6 a3 e6 g3 b6 a4 h7 a2 e7 a3 e8R Qc7 b7 Bg7 Qe1 Ra6 Rh6 Bc3 Bb5 f1Q Bd3 Ne7+ Kc4 d5+ Kc5 d4 Rd8 Rg8 Re8 Nd7+ Kc4 Ne5+ Kc5 Rg5 b8R Nf7 Qe2 Qe1 Qf1+ Ke3 Rh4 f4+ Kc4 f3 Rh6 f2 Rh3 Bg4 Red8 Nc8 Nf3 g1B Rb5 g2 Rh2 Qg3 Rb3 Ba5 Bb2 d1N Nh4 Nc3 Nd2 Nb5 Ndf3 Nba7 Rb1 Bc3 Be2 d3 Bc1+ d2 Nf5+ Ke4 Bb2 d1Q Nh6 Ke3 Bd3 Ba5 Be5 Qde2 Kd5 Bc3 Rh3 Bh2 Rh4 g1N Re8 Nh3 Qg2 f1N Bb5 Nd2 Rh5 Rf5 Ke6 Rg5+ Kf6 Nf4 Re6 Bg1 Rh2 Bf2 Qh3 Q2d1 Qh5 Bg1 Qg6 Qde2 Rb4 Nb3 Kg7 Na1 R4b3 Q2d1 Kg8 Qde2 Rh1 Qeh2 Re8 Qh5 Rh2 Bf2 Rd8 Bg1 Rh3 Kf2 Bb8 Ba5 Rdd3 Ke2 Rh1 Bd4 Re3+ Kf2 Re8 Bdc3 Rh2+ Qg2 Rd8 Ke3 Rd2 Qgg3 Rde2+
K2bRRr1/N4nP1/1B1brn2/1bq2pb1/4P3/q1k2B1N/2p2rnb/2Q2BB1 b - - 0 1 illegal: No proof kernel
rnN3R1/1r2Pr2/2B2p1B/1bQ1bq1R/4P1n1/BkpNr1q1/q4Br1/n2K4 b - - 0 1 illegal: Other
2q5/1RNpkr1r/NR4np/2K2n2/b2nP1b1/3R1B2/nqQ1rP2/b3BnR1 b - - 0 1 illegal: No proof kernel
rb2B2q/2P4p/N2r2Qr/R1p1kb2/rnBn1Rr1/2KB1B1P/2N2n2/3q3q b - - 0 1 illegal: No proof kernel
qB2NRBr/bp1bb2q/3Np2q/Br3b2/n4kQ1/2B2r2/1P3P2/3K1nRb b - - 0 1 illegal: No proof kernel
k1N1b2R/4qNBb/3qn2R/r1Q1R1p1/pr1nn1rb/K6B/P3bqRP/8 b - - 0 1 legal: proof: f4 e5 d4 exf4 g4 h5 c4 hxg4 c5 b6 Qd3 bxc5 Qd2 cxd4 Qd1 d3 Kd2 c5 Kc3 d5 Kb3 Kd7 e4 Kc7 e5 Kb7 e6 a5 e7 f5 e8R g3 Na3 d4 Qg4 d2 Re6 d1Q+ Nc2 c4+ Ka4 g2 b4 c3 b5 d3 b6 f3 Re3 d2 Be2 f4 Re6 f2 Bf1 f3 Qh4 Nf6 Bd3 f1Q Qh7 f2 Re4 Bf5 Re6 Qe7 Bb5 Na6 Kb3 Ne4 Re5 Nc7 Qh6 Bh7 Be8 Ne6 Nh3 g1R Qh5 Rg4 Bb2 Ra6 Bb5 Ka8 Rc1 Qfe2 Qf5 f1B Ng5 Qf2 Nf7 Be2 Bd7 Bb5 Bc8 Be8 Rg1 g5 Rg2 a4+ Kc4 Bg7 Na3 c2 Nb5 Ra5 Nbd6 Bf8 Rb1 c1N Kb4 Nb3 Ka3 Nbd4 Ba1 Rg8 Rb3 Bg7 Rh3 Rf8 Rh6 Bh8 Rc5 Be5 Bd7 Rg8 Nc8 Bg3 Bc3 Bh4 Qd5+ Nc6 Bg7 Rh8 Qd6 Ncd4 Re5 Rg8 Qc5 Rf8 Nfd6 Rff4 Nf7 Qdf1 Qb4 d1B Qc5 Qa6 b7+ Kb8 Bb5 Qad6 Bf1 Be2 Nb6 Ka7 b8R Bc6 Rh8 Be8 Nc8+ Kb8 Rg1 Ka8 Bh3 Rf3+ Kb2 Rc3 Rg2 Rc4 Ka3 Rb4 Rg1 Rb2 Rg3 Rb4 Rg2
1Kbq3n/6q1/1R2Bp1N/1b1Q2r1/Nr2n2q/k1pP1n2/1B3bPR/3rRqR1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 c5 e4 h5 a3 b3 a4+ Kb4 a5 b5 a6 c3 a7 h3 Rh2 c4 Qe1 f3 Qe2 c2 Nc3 f6+ Kf4 b2 e5 b1B e6 h4 e7 f2 e8R Na6 Qg4 Rh5 Bb2 c1Q Qe2 Rb8 a8R Nh6 Re3 Nf7 Qf3 Bd3 Qc6 Nh8 Ra7 Rg5 Rf3 Nc5 Be2 f1Q Rg7 Ne4 Na4 c3 Qd7 Bc5 Qd5 Bf2 Re3 Bc4 d3 Rb6 Rh1 h2 Nf3 h3 Ne5 Rb7 Rg1 h1Q Rb1 h2 Ba1+ Ka3 Nf7 b4 Nh6 b3 Rh7 b2 Bg4 Rb4 Be6 Bb5 Kf3 Qcd1+ Kf4 Qh5 Ree1 Qf7 Kf3 Qg7 Kf4 Rg3 Kf5 Rg4 Bd7 Rg5+ Ke6 Nd2 Kd6 Nf3 Rbc1 b1N Rcd1 Qe8 Kc7 Nbd2 Kb8 Qd8 Re6 Ne4 Rb6 Qe2 Rge1 Qhf1 Be6 h1R Ng8 Qe3 Rh2 Qd2 Nh6 Qf4+ Ka8 Qh4 Kb8 Qe2 Rg1 Qf1 Re1 Qgd7 Re3 Qe2 Rf1 Qg7 Rb1 Rd1 Rc1 Rd2 Rg1 Qf1 Re1 Rd1 Bb2+
K2Rr3/nrq4Q/1PbPk2N/b1pq2Bq/1BnpB2q/5B1r/5n2/R2N1b2 b - - 0 1 illegal: No proof kernel
6Nr/bp1N1bkR/1q1n2b1/2rBN2Q/n1n2q1P/2p3BK/Nn4P1/1r3Rq1 b - - 0 1 illegal: No proof kernel
2bknBrb/3pq3/2p3rB/3nN2r/1Rnn1nn1/5B2/b2PRP1B/5KQN b - - 0 1 legal: proof: e4 a5 c4 h5 b4 b5 g4 hxg4 e5 bxc4 b5 f6 Qf3 fxe5 Qb3 e4 Qb4 axb4 a4 e5 h4 g5 b6 c6 h5 g3 b7 g4 a5 e3 a6 g2 a7 c3 h6 g3 h7 b3 Nh3 g1R Bb2 g2 Ba3 e4 Rh2 c2 Bb4 c1N Ra3 b2 Ra2 Nd3+ Ke2 Nf4+ Ke1 Nh6 Ra6 Ng4 Ra3 Na6 b8B Nc7 Bc3 Bg7 Be5 Qe7 Nc3 b1B Ne2 Ba2 Bd6 Nfd5 Ng5 Kd8 Rh4 Ne8 Ng3 Rg8 Bc5 Bh8 Nf3 Rg5 Nh1 Rh5 Bh2 Rb8 Ne5 Ra8 Kd1 e2+ Kc1 e1N Kd1 e3 Ke2 Rb8 a8Q Nd3 Rb3 Nb2 Rb4 Nc4 Bd6 Qf6 Bf8 Qe7 Qa4 Ra8 Qd1 Rb8 Kd3 Ra8 Be2 Rb8 Bf3 e2 Rh3 e1N+ Ke2 Nd3 Qf1 N3f4+ Ke1 Bf6 h8B Ra8 Bhg7 Rb8 Bh6 Bh8 Rh4 Ngf6 Rh3 Rb5 Bd1 Nde3 Nd3 Rbg5 Ne5 Rg8 Ng3 N6d5 Be2 Rh1 Bd1 g1N Qg2 Nge2+ Qf1 Rg1 Nh1 R1g2 Qg1 Nd4 Bg4 Nd1 Re3 Rg3 Bf3 R3g6 Re2 N1e3 Qf1 Ng4 Qg1 Rh4 Kf1 Rh3 Bhg7 Rh5 Bh6
nb2Q3/3qB1q1/1R6/qR3bNP/rbKB1k2/1NPn3B/1p3Bp1/qrq3q1 b - - 0 1 illegal: No proof kernel
2q5/qk1Bq3/R1pNq2n/K3nRbP/1B1n1QP1/2BpN2b/3qr3/1Bq1r3 b - - 0 1 illegal: No proof kernel
2r1r3/NbB2K2/pQBkn1n1/PBR3PR/5b1q/rn6/pn1Br2N/2b3n1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 g5 e5 gxh4 a5 f6 Qd3 fxe5 Qc4 e4 Qa4 bxa4 Ke2 h5 b4 d5 c4 Kd7 f4 e5 g4 a6 f5 e3 Kf3 e4+ Kf4 a3 Ke5 a2 b5 h3 f6 d3 b6 e2 b7 e1B f7 h4 c5 h2 Bh6 e3 Bg2 d2 Bg7 d1N Nh3 e2 Na3 d4 Nc2 d3 Be4 d2 Bh6 Nc3 Rf1 h1R Rd1 Nb5 Ng1 h3 Be3 h2 Bf4 Nd4 Be3 Nb3 Nd4 Ne7 Kf6 Bg3 c6+ Kd6 c7 e1N Ngf3 Bh6 f8B Nc6 b8Q Bb7 Rc1 d1N Bd2 Bgf4 Rc5 Nb2 Kf7 Rg8 Bg7 Ng6 Bf6 Re8 Bd3 Rg1 Bb5 h1R Nh2 Nf3 Ra1 Rg3 c8B+ Qc7+ Bd7 Rhe1 Qd8 R1e2 Rh1 Rc8 Bg5 Qb8 Qb6 Ng1 Bd8 Rh3 Bc3 Bc1 Bd2 Bf4 g5 Qa8 Nhf3 Rg3 Rh5 Qb8 Nh2 Rd3 Ne6 Rf3 Nc7 Rd3 Qa7 Ncd4 Bdc6 Ne6 Qb6 Nbd4 Nd5 Ra3 Ne7 Nb3 Bd5+ Ke5 Nc6+ Kd6 Na7+ Ke5 Bdc6+ Kd6 Be1 Qc7+ Kf6 Qh7 Bd2 Qh8+ Kf7 Qd4 Bd3 Qf2 Bdb5 Qh4 Bc7+
BNQ5/bK1b1p2/nBr5/1qb1q2n/P1rr3R/BBP3R1/b3bp2/3Nb2k b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 a4 Kf6 e4 Ke5 h4 d5 c3 g5 h5 b5 h6 d3 h7 d2 Rh4 f3 Ke3 d4+ Kd3 Kf4 e5 Kg3 Ke4 b3 e6 b2 e7 d3 e8B b4 Ra3 b3 Be2 Kg2 Rh1 g3 Ra2 g4 Qe1 d1B Bh6 d2 Bd3 Bd7 Kd5 Ra6 Rh5 Qe7 Qe5 Rc6 Bc2 Be2 Qg7 d1R+ Bd2 Na6 Nh3 Kh1 Na3 b1Q Nc4 b2 Nb6 g2 Rh4 g1B Bb3 g3 Qg4 g2 Qc4 Bd4 Bc1 g1B Qc5 Bgf2 Ra1 Bc8 Nd7 Be1 Nb8 Bd7 Qc4 Qf6 Ra2 Bfc5 Nf2+ Kg2 Ra1 Rd3 Nd1 f2 Rh3 Ba7 Rg3+ Kh1 Qc5 Qf4 Qf8 Rc4 Qc5 Qe3 Qc8 Nf6+ Kd6 Rf8 h8B Nh5 Kd5 Bdc5+ Bd4 Be6+ Kc6 Bd7+ Kb7 Qe5 Bde3 Rd6 Bd4 Rc6 Bde3 Qbf5 Bd4 b1B Ba3 Ba2 Rb1 Be7 Bb6 Bc5 Rb2 Rh8 Rd2 Rhh6 Rd4 Rhd6 Rf4 Rdd4 Rfg4 Bf8 Rf4 Qb5 Rfg4 Qfe5 Rh4+ Bh3 Bd7 Bd6 Bg4 Bc5 Bf3+ Kh2 Qf5 Rcd6 Kc8 Rg6 Ba8 Rc6+ Kb7 Kh1 Rf4 Bhg4 Qc8 Bd7 Rh4+
1Q1k3q/Pb2b3/3b1R2/Knn1qBP1/br1R4/1bN3p1/1q1p1NNN/B3r1b1 b - - 0 1 illegal: No proof kernel
K4NR1/P3nq1r/4P1n1/n2p1Qkb/7n/1Npnb1Bq/r2Nb1n1/NB5R b - - 0 1 illegal: No proof kernel
n2Nq1b1/pq2N3/2p5/2Bnqq1q/4PRB1/1qbR1KQ1/1N2P3/1kN1r1rr b - - 0 1 illegal: Other
qRb1R1r1/R3N1R1/3B1qr1/nb1Pn3/4p3/r1bPKBN1/2p1Q3/r2kb1r1 b - - 0 1 illegal: Other
1K1kN3/1b1Bq3/4p1p1/2bn2br/RP2b2B/1Pqr1RNQ/n1N2qqq/3N4 b - - 0 1 illegal: Other
2q4B/1rq3n1/K1NP2b1/R1Nrk1rR/2p5/1R1nq1qp/Q5Pb/1rR2B1q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 d4 Ke7 Kd2 Kd6 a4 c5 e4 b5 d5 h5 a5 f5 a6 b3 Kc3 b2 a7 b4+ Kc2 h3 Nc3 b1R Nf3 h4 Ra2 b3+ Kd2 b2 Ng5 f3 Na4 c3+ Kd3 f4 Kc4 h2 Kb5 c2 Qd3 h3 Bd2 c1Q Qc3 c4 Ne6 f2 Nac5 f3 Be1 Ne7 Ra4 Qc7 Nd3 Rh5 Ng7 Na6 Qc2 Nc5 Qc3 Bf5 Nb4 Bg6 Qd2 Rd8 a8R Nd3 Ra1 Nf5 Nc6 Rg5 Ne6 Ng7 R8a5 Rd7 Rg1 h1Q Nc5 Qh2 R1a2 Qg3 Ka6 Rd8 Qe2 Qe3 Bc3 Rd7 Rb5 Rd1 Bf6 b1R Raa5 Rd2 Ba1 Rdb2 Rb8 Rb7 Qa2 Be7 Bc3 Bf6 Rh8 Be5 Rh5 Bf4 Be2 Rd8 Rc1 f1Q Bb2 Qh1 Bf1 f2 Ba1 Qc8 e5+ Kc7 e6 Kd6 e7 Qc7 Be2 f1Q e8R Qff3 Reh8 Qfg4 Bf1 Qgc8 Rf8 Nf5 Bh8 Ng7 Nb4 Ke5 Rg8 Rf8 d6 Rff5 Rd8 Qgf2 Rf8 Bh2 Rf6 Qfg3 Nc6+ Kf4 Re6 Rd5 Re5 Qef3 Re2 Qe3 Rb2 Kf5 Rb3 Kf4 Ne7 Ke5 Nc6+
1r1Bkr1b/qnp4N/rPr2BN1/3K1p2/2nQ1RPn/1q1B3B/n1R5/5b1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 f5 Kf3 h5 d4 a5 e4 a3 b4 c3 g4 a4 e5 h3 d5 a2 e6 a3 e7 h4 b5 c2 d6 h2 b6 h3 Be2 Bg7 Bb2 c1N Qb3 Nd7 Qb4 Ba6 Bc3 Rb8 Be1 Nc5 Qb2 Nb7 Kf2 f3 Ke3 f2 Nc3 f1N+ Kf4 Nd2 Nd5 Nc4 Bc3 Qd7 Bf6 Qb5 Bd3 Qb3 Nf3 Bb5 Re1 h1R Nh4 h2 Re2 Rd1 Rc2 h1N Rb1 a1Q Qd4 a2 Ng6 Rh6 Bf1 Bh8 Bh3 Re1 Rbb2 Re6 Rb1 Rh7 Rbb2 Rf7 Rf2 Rf8 d7+ Kf7 d8B Rc6 Rbe2 Ke8 Re4 Na3 Ke5 Bf1 Nb4 Nc4+ Kd5 Qab2 Ref4 a1R Rc2 Na2 Na6 Qc1 Nc5 Qca3 Ne4 Qa7 Ng5 Nc1 Bg2 Ra6 Bh3 Na2 Nh7 Nh6 Re2 Nf7 Rc2 Ng5 Re4 Nf3 Rf4 Kf7 e8B+ Kg8 Bd7 Kf7 Bc8 Nh4 Bd7 Re6 Ba4 Rc6 Bb5 Na3+ Ke5 Ke8 Bd3 Nc4+ Kd5
B1r5/1PQb2rB/1N2RnBb/3n3p/7R/3p3P/bn1q1b1K/bN1qnkB1 b - - 0 1 legal: proof: e4 g5 f4 gxf4 a4 b5 d4 bxa4 d5 c6 Ra3 cxd5 Ra2 dxe4 Ra1 e3 b4 h5 g4 a5 c4 e5 g5 Ke7 g6 Kf6 b5 Kg5 g7 Kh4 c5 f5 b6 d5 h3 Kg3 c6 a3 c7 f3 Bc4 Kg2 Ne2 e4 Rf1 f4 Qa4 a2 Ba3 f2+ Kd1 d4 Nbc3 f3 Qc2 a4 Qd2 Bd7 c8B Rh7 Bd3 Nc6 Bc2 Nf6 g8B Bh6 Bd5 Ne7 Nb1 Rg7 Bd6 a3 Bdb7 Ned5 Rh1 f1Q+ Qe1 f2 Bg3 Qg1 Bh4 f1B Nec3 Bc4 Na4 Bb3 Bg5 e2+ Kd2 Rb8 Qg3+ Kf1 Be3 e1N Qc7 Nd3 Ba8 Nb2 Ba6+ Bc4 b7 Rc8 Rh2 Qg5 Re2 Bb3 Bad3 Qg2 Qf4+ Qf3 Bg1 e3+ Kc1 Bc4 Bh7 Qa5 Bcf5 d3 Bfg6 Qb4 Qc7 Qh1 Rg2 e2+ Rg5 e1N Nb6 Nf4 Re5 N4d5+ Be3 Bb3 Re6 Qf4 Kd2 Qb4+ Nc3 Qg1 Rc1 a1B Rc2 Qf4 Nb1 a2 Rc4 Qgg4 Nc3 Na4 Nb1 Bd4 Rb4 a1B Rc4 Nb2 Rb4 Qfg5 Rc4 Nf4 Bg1 Bf2 Rd4 Ba2 Rb4 Bg3 Ke3 Qd1 Rc4 Ne8 Rd4 Nd5+ Ke4 Qgd2 Kf5 Q1c1 Rh4 Bf2 Ke5 Nc2 Ke4 Nef6+ Kf3 Qcd1+ Re2 Bc5 Kg3 Bf2+ Kh2 Ne1 Re6
rqq2b2/1krnBn2/3NN1B1/1PQRpN1N/p1R3b1/3Kn1bb/6nP/7q b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 g5 b4 e5 f4 d5 c4 Kd7 f5 Kc7 f6 a5 f7 e3 b5 d3+ Ke1 a3 c5 a2 c6 a4 Bb2 g3 Bh3 e2 Kd2 e1N Bd4 g2 Bb2 g4 Nf3 g1Q Bd4 g3 Be6 g2 Ba7 d4 Qc2 Rh7 Qc5 Nd7 Qc1 Nh6 Qc5 Qf1 Nc3 g1B Rc1 a1Q Ne4 Ng2 Rc4 Bf2 Bf5 Bg3 Bg6 Rg7 Ng1 Qf5 Nf3 Qh3 Rb1 Qe6 Rbb4 Qh1 Nh4 Qh3 Bb6+ Kb8 c7+ Kb7 Rb1 Rh7 Rd1 Qf5 Kc1 d2+ Kc2 d3+ Kc3 Qh3 Nf6 Qg4 Nh5 Qh3 Rb1 d1B Nf5 d2 Kd3 Bg4 Rd1 Qe8 Ba5 Qd8 Bb4 Rg7 Rdc1 d1N R1c2 Nde3 Rd2 Be7 f8N Nf7 Ne6 Bf8 Re2 Qe7 Rd2 Qd6+ Qd4 Qb6 Be7 Qa7 Qd6 Qb8 Qc5 Nb6 Nh4 Nf5 Nd4 Be2+ Kc3 N7h6 Bf6 Nfe3 Bd8 Be6 c8N Rc7 Be7 Nf7 Rd3 Qf5 Rd1 Bg4 Rd2 Bh3 Nd6+ Ka7 Rd3 Bc8 Rd1 Qd7 Kd2 Qd8 Kc3 Bcg4 Ne6 Qe8 Nhf5 Qec8 Ne8 Kb7 Rd5 Nd7 Kd2 Bf3 Kd3 Bfg4 Ned6+
1NB2N2/qn3bbk/2K1R2n/1pPP1b2/n1QR1r2/1R1q3R/3r2bp/B3rn2 b - - 0 1 illegal: No proof kernel
3BNq2/Q3q1qr/nKB3b1/PnR1p3/k3pNN1/nq3n1R/5PN1/1r4br b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 b5 c4 d5 a4 Kd7 g4 Kc6 c5 h5 g5 h3 a5 d3+ Ke3 b3 Kd4 b4 g6 Kb5 c6 h4 g7 b2 c7 h2 Qb3 h3 Bf4 Nf6 g8N Nh7 Bg5 Na6 Ra4 Ra7 Qd1 b3 Bh6 Bf5 c8N Ng5 Be2 Bg6 Qc2 Nf3+ Ke3 d4+ Kf4 e5+ Kg4 Qe7 Bc1 Bh6 Ra2 Bf4 Bd1 d2 Nh6 d3 Na3+ Ka4 Ne2 b1N Nc4+ Na3 N8d6 Rb7 Ne8 Rh7 Rb2 Nb5 Ne3 Qg7 Qc5 Rb8 Bc2 d1Q Rb1 d2 Ng2 Qe1 Qe3 d1Q Qa7 Qb4 Rb2 Bg3 Bg5 Qbf8 Bd8 Qdd6 Rbb1 Qde7 Nef4 Rb6 Bd3 b2 Rbc1 b1N Rc5 N1a3 Bc4 Rb8 Bd5 Rb7 Bc6 Rb8 Rb1 h1Q Rb3 h2 Re3 Qd1 Rec3 Bf7+ Kf5 h1R Ng4 Bh2 Re3 Bg1 Rd3 Qh4 Re3 Bh5+ Ke6 Bg6 Rd3 Qhe7+ Kd5 Nd4 Rh3 Nf3+ Nd3 Qb1 Ndf4 Qc2 Ba8 Qb3+ Kc6 Rc8+ Kb6 Rc7 Rd5 Rc1 Rc5 Rb1 Bc6
B2BR3/4qbn1/QN3qN1/P1p5/rn1rp1nN/2k2b1R/b2bP2r/rN3K2 b - - 0 1 legal: proof: g4 d5 h4 a5 c4 dxc4 b4 axb4 g5 f6 Qc2 fxg5 Qb3 gxh4 Qd1 h3 a4 Kd7 f4 Ke6 d4 Kd5 f5 g5 f6 e5 f7 b5 Qd2 h5 Rh2 c5 Rf2 c3 Qd1 Kc4 d5 h4 d6 g4 d7 e4 Rf6 g3 Nf3 b3 Qd6 h2 Qd1 h1N Ra2 g2 Ra6 g1R Ra5 h3 Be3 c2 Nbd2+ Kc3 Ra6 c1Q Ra3 h2 Ng5 b4 Nh3 Qa1 Nf4 Qe7 d8N Ng3 Ng6 h1B Ra5 Na6 Nb7 Be6 Nf3 Bh6 f8N Bf7 Bg5 Nh5 Nd7 Ngf6 Nfh4 Bf3 Nb6 Ng4 Nd6 Ng7 Ndc4 Rad8 Rb5 Rd4 a5 Rg3 Bg2 Qb2 Bf6 Bd2+ Kf1 Rh3 Qa1 Rh2 Bh3 Rb8 Ra4 Rd8 Na3 Rd5 Qd1 Qa1 Bg5 b2 Bf6 b1B Bg5 Nh6 Bc8 b3 Bb7 b2 Ba8 Ba2 Bf6 b1R Rb2 Qe8 Bd8 Qe7 Rab4 Rd7 Rb5 Ra4 R5b3+ Kd4 Re3 Nb4 Rc3 Ng4 Rbb3 Bh1 Rh3 Bf3 Qc1 Qc3 Qd1 Ra1 Qc1 Be1 Qh6 Rd6 Rb1 Qb2 Rd1+ Kc3 Rd5 Rd7 Re5 Rd4 Re6 Qd2 Re5 Qdg5 Re6 Qef6 Re8 Qge5 Qf4 Qee6 Qd6 Qee7 Qe6 Bg8 Qc8 Bgf7 Qa6 Bd2+ Nb1+
3N3k/bb2Q1n1/1p1n3p/3q1bqP/rn3B2/4K2R/Nq1RP2n/R1q2BRr b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 f5 b4 fxg4 b5 a6 Nc3 axb5 Nb1 bxc4 Qa4 c3 Qb3 Ra4 Qd1 Ra8 a4 Kf7 f4 c5 Kf2 g5 h4 Kg7 a5 d5 a6 g3+ Kf3 c4 f5 d3 a7 c2 Bd2 c1Q Bf4 d4 Rh2 c3 Qe1 g4+ Ke4 g2 Nf3 g1N Ra6 d2 Qf2 d1B Na3 g3 Bd2 g2 Nb1 c2 Kf4 d3 Qe3 Bc5 Rf6 Ne7 Rc6 Qb2 Na3 c1Q Ra6 Nbc6 Nd4 Qd5 Ndb5 Nf3 Qe6 g1Q Nc4 Nb4 Ncd6 Bc2 Rh3 Nh2 Ra2 Bd4 Be3 d2 Nf7 d1N Nc3 Nf2 Nd8 Ne4 Qd6 Kg8 f6 Nf5 Qe7 Ng7 Ra1 Qg2 Na2 Nd6 Rb1 B2f5 h5 h6 f7+ Kh7 f8R Rg8 Rf6 Kh8 Re6 Qg6 Re4 Bb6 Rd4 Qf6 Kg3 Qg5+ Kf2 Rf8 Bf4 Rf7 Qe3 Rc7 Rd2 Rc4 Bg3 Rg4 Bf4 Rg1 Qc5 Rh1 Ra1 Bc7 Ke3 b6 Rb1 Bb7 Ra1 Rc8 a8R Bb8 Qc7 Ba7 Qe7 Rc5 Rc8 Ra5 Rc4 Ra4 Re4 Qc8 Re6 Qcc1 Rg6 Qh4 Rg4 Qg5 Rg1
1nNr2q1/r1nbBq1p/6p1/k5bQ/2nn1bRN/1B1RP2R/P2br3/R4K2 b - - 0 1 illegal: No proof kernel
1k5R/1qNn1P2/3nn2N/K2pqq1b/1N1r1r2/RPN1Q3/1BB2pq1/1n1rb3 b - - 0 1 illegal: No proof kernel
2q3q1/Rpp5/4n1b1/1PQ1KnRb/3r2k1/NP1rbR2/R2N2B1/1qn1Bb1n b - - 0 1 illegal: Other
b1k1K3/P1r2p1r/2p1R1qR/1nB2B2/QPR2bN1/1q1q4/R1q4b/n2r1rN1 b - - 0 1 illegal: No proof kernel
1B1BnrQn/p3b1nb/p4P1n/5q2/rP2B1q1/1N1bb3/q1BR4/k1N2R1K b - - 0 1 legal: proof: e4 f5 g4 fxe4 d4 c5 a4 cxd4 a5 h5 a6 hxg4 Bc4 bxa6 Be2 Kf7 Bf1 Ke8 h4 Kf7 f4 Ke6 Kf2 Kd5 Kg2 e5 f5 g5 c3 d3 c4+ Kd4 h5 d5 c5 e3 c6 d2 b3 e4 c7 e2 h6 e1N+ Kh2 g3+ Kh3 g2 Kh2 e3 h7 g4 Qe2 d1N Qf2 g3+ Kh3 Qd7 Bb5 Nd3 Ra5 Nh6 Na3 Kc3 Nc2 d4 Bd2+ Kb2 Bc4 e2 Rd5 e1Q Rh2 Qe2 Bb5 Ne3 Re5 Nf4+ Kh4 d3 Na3 Ka1 Nc4 Ng6+ Kh3 Be7 Ba5 d2 Ba4 d1B Nd2 Bc2 b4 Bd3 Rd5 Rf8 Bb3 Nh8 Rh1 Qe6 Bb6 Nd7 Bc2 Rb8 Qf3 Nf6 Qg4 Qe5 Qg8 Ne8 Rd6 Bb7 c8B Bbe4 Bd8 Rb5 Bb7 Ra5 Ba8 Qf2 Ne2+ g1B Nc1 g2 Bd5 Ra4 Ndb3+ Kb2 Bb7 Qd2 Rd7 Bf2 Rf1 g1Q Rd4 Qc5 Ba8 Qg4+ Kh2 Qa5 f6 Bg6 Be4 Nef5 Kh1 Nfg7 Rd6 Qaf5 Rd7 N8f7 h8B Bh7 Rd5 Be3 Rd7 Nh5 Bg7 Nh8 Rd5 N6f7 Bh6 Nhg7 Bf4 Nh6 Bb8 Qdf2 Bd1 Kb1 Rd6 Qa2 Bc2+ Kb2 Na5 Ka1 Rd7 Bc4 Rd2 Bd3 Nab3+
r2NRQ2/3b3r/2Pnn2P/b1N1Knr1/1RknBBB1/1p1r2r1/1pB1q1r1/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 d5 c4 f5 h5 b5 e5 g5 e6 f3 Kg3 f4+ Kf2 g3+ Ke1 b3 Kd2 g2 Kd3 f2 e7 g4 e8B b2 a5 b4 a6 f3 h6 g3 a7 b3 Ne2 g1N Na3 g2 Rh4 Ne7 Rb1 Rh7 Re4 Nf5 Bf7 Nc6 Re3 Nh3 Re7 g1R Nc2 Rg3 Rb7 Bd7 Bg8 Qe8 Nf4 Ng5 Ne2 Ne6 Rb4 Nd6 Bh3 f1N Rb8 Ne3 Bg4 f2 Nc3 f1R Qf3 Rfg1 Nb4 Nef5 Bf4 R1g2 Re1 Be7 Bf7 Bd8 Bg6 Ba5 Rb6 Rc8 a8B Qe7 Bb7 Ra8 Re2 Qe8 Kd2 d3 Na4+ Kd4 c5 Kc4 Qf2 d4 Re5 Na7 Be4 Nab5 Rb8 Bd8 Nc6 Ba5+ Nc3 Qe7 Nd8 Qe8 c6 Qe7 Ke1 d2+ Ke2 d1R Na4 Rdg1 Nc5 Qe8 Bgf3 Rg5 Bg4 d3+ Kf3 d2 Bc2 d1R Rb6 Nc8 Ke4 Nbd4 Qf1+ Rd3 Rb4+ Kc3 Kd5 Ncd6 Re3 Rg3 Ke5 R1g2 Kf6 Nh4 Be4 Nhf5 Ke5 Qh5 Qh1 Qe8 Qh5 Qe7 Qf7 Qe8 Qf8 Qh5 Bh3 Qe2 Bg4 Rf2 Kd5 Neg7 Bef3 Rfg2 Re8 Nge6 Be4 Rh5 Rb6 Rg5 Ke5 Kc4 Rb4+
2n1b2N/3rpBbr/1PRn2P1/K3p3/2rB4/1r2Qr1B/2b1N2q/kR1Brb2 b - - 0 1 illegal: No proof kernel
2n2r2/1pNnpR2/2q3P1/rQ6/1n1BBKR1/Pr2n2p/Nnb1bbk1/R1R5 b - - 0 1 illegal: No possible last move
1N4b1/N1B5/1BQb2R1/pnnrRb1K/4p2B/kBr1q1qp/3PP3/b5qb b - - 0 1 illegal: No proof kernel
kq1q4/B4N1K/N4NRP/1pp3b1/nQP2B2/1Npq4/2bb2nb/r1r3bR b - - 0 1 illegal: No extended proof kernel
q7/1R1NK1QR/p1Br3B/2n1P1n1/3qb1bb/1b1P1qp1/rpN2k2/RR4b1 b - - 0 1 illegal: No proof kernel
q5B1/2nn1NPn/b1NbBPp1/3RR3/1nr4p/1Q2qBB1/5p1K/k1n2rr1 b - - 0 1 illegal: No proof kernel
B4bq1/NqnP4/b1r1Bk1p/nnQRpp2/1B1q1qq1/2RP1rB1/6K1/2N5 b - - 0 1 illegal: Other
b3R2q/RpP4b/NN4q1/b1b3B1/5N1q/2rpp3/1Pbn1r2/kB1QKNn1 b - - 0 1 illegal: Other
2r2nq1/p3p3/2Rp1r2/Q2bN1Pq/Nb2kPBb/nb3n1K/3R2R1/2BR3b b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 f4 Kf7 Kf2 Ke6 c4 Kf5 b4 h5 g3 d6 Kg2 d3 b5 h3+ Kh2 h4 b6 a3 c5 d2 b7 e3 g4+ Ke4 c6 a2 g5 e2 c7 e1B Na3 Nf6 Ba6 Nfd7 Bc4 Bg7 Qh5 d1B Qf7 Bgc3 Bb5 Bb4 Ne2 Nf8 Qh5 Nc6 b8R Bb7 c8R Ne5 Rc3 Rh6 Be8 Rf6 Bd7 Bb3 Rg1 B7d5 Rg2 Qe8 Rb5 Rc8 Qh8 Bf2 Rb1 a1N Bg4 Nc2 Nc4 Na3 Rc5 Qf7 Rc2 Qg8 Rd2 Be1 Rc6 Nf3+ Kh1 h2 Ne5 Bg3 Qg7 Be1 Qf7 Bg3 Qe8 Be1 Qd8 Bg3 Qa5 Bf2 Rg3 Be1 Kg2 h1B+ Kh3 Bf2 Bd7 Be1 Rg2 Bg3 Kg4 h3 Be6 h2 Kh3 Be1 Bg4 Bh4 Nc3+ Ke3 Nd3 Bg3 Na4 Ke4 Bb2 Bf2 Rbd1 Be1 Rgf2 Bg2+ Kg3 h1Q Bc1 Qh5 Ne5 Bh1 Nf7 Qhh7 Ne5 Qhf7 Kh3 Qe8 Rh2 Bh4 Rhf2 Qh5 Rg2
2k1r1q1/Bnn4N/R1B2nBr/1B1b1Kn1/N1P3rP/p1b1pp2/6RQ/q2q4 b - - 0 1 illegal: No proof kernel
5b2/q1rq1BB1/R1b1k3/1n3NP1/pPp1B1nr/2RQBn1N/q3p1bq/2K5 b - - 0 1 illegal: No proof kernel
b3Nb1K/1B6/1rr1pPr1/2rp4/1PnR2pR/B1Nq4/QqNnN3/4nqk1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 g6 fxe4 Bh6 hxg6 Bf4 g5 Bc1 g4 Ke2 Kf7 h4 Kg6 c4 Kf5 b4 g5 f4 a5 c5 e6 c6 g3 c7 Kg4 h5 e3 Kd3+ e2 Ke4 d3 Ke5 a3 f5 d2 h6 g2 h7 Kg3 Qa4 Kf2 Qb5 e1N Rh6 d1R Nc3 a4 Qd3 a2 Qd5 a3 Nce2 Bb7 c8N Nc6+ Ke4 Ra6 Ne7 Na5 Ke5 Ba8 Rh5 Nf6 Nc6 Ne4 Nc3 Rb6 Ba6 Nd2 Nge2 g1R Rh4 g4 Rb1 a1Q Ncd4 a2 Nc2 Qb2 Bb7 a1Q Qa2 Rg8 h8N Rg6 Nf7 Rc6 Nd6 Nac4+ Kf4 Rg3 f6 Rd3 Ne8 Rd5 Ned4 Rdc5 Nde2 Qb3 Ba3 Qbb2 Rc1 Qab1 Ncd4 Qd3 Nc2 Qb6 Rb1 Qb5 Ra1 d5 Rc1 Rb6 Rb1 Rh6 Kg5 Rg6+ Kh5 Rc1 Ra1 Rg7 Kh6 Rg6+ Kh7 Rcc6 Ng3 Kg1 Kh8 Qc5 Rb1 Qf2 Ra1 Qff1 Nge2+ Kf2 Ne3 Rc2 Rd1 Rc1 Nc2 Rc5 Ned4 Kg1 Nde2+ Kg2 Na1 Rcc6 Bc8 Ne4 Nd4 Qdf3 Rd3 Na5 Ncb5 Nd2 Bb7 R1c5 Nc3 Nac4 Nde2 Qg3 Rd4 Qd3 Nc2 Kf2 Ng3 Kg1 Nge2+
1Rn2bn1/1N1N1qBp/Kpkq2p1/B1BP1Q1r/1P1qb3/2q4B/7r/3Rb2r b - - 0 1 illegal: Other
r3BN1k/R2RKP2/5n2/1Q2N1n1/b1q1nbqp/r3BpR1/p1P5/2n1qR1b b - - 0 1 illegal: No proof kernel
1K3Q2/N3P1p1/1R3q2/NB6/pNq1bB1r/1qb2nN1/2P1n1rp/bR1r1kq1 b - - 0 1 illegal: No proof kernel
bBB2KR1/1rB1pn2/RNP1bN2/1n4k1/Pq1q1bnp/4pb2/Qr2B1r1/8 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 Ke2 Kf7 f4 Kf6 g4 d5 a4 b5 c4 h5 c5 e3 Kf3 d3 f5 d4 Ke4 h3 Qd2 h4 Qa2 h2 Nh3 d2 Ba3 d1B Ng5 b3 Bd3 b4 Nc3 b2 Rg1 b1R Be2 Rb2 Rc1 Nd7 Kd5 h1B+ Rg2 b3 Nh7+ Kg7 Ke6 Kh6 Kf7 d3 f6 d2 Rc2 Ra7 Nd5 Rb7 Nb6 Bg7 Rg3 Bf3 g5+ Kh5 g6 Bh6 g7 Bf4 Ke6 Nh6 g8B Ng4 Kf7 Nde5+ Kg7 Bc6 f7 Qd4 f8B Nf7+ Nf6+ Kg5 Bh7 Bg2 Bf5 Be6 Bb4 Rh6 Ba5 Qb4 Kg8 Rg6+ Bg7 Bf3 Kf8 Bfd5 Bc4 B1f3 Be2 d1Q Rd2 Bde4 Rd6 Qdd4 Rg2 Ra7 Rg3 Ba8 Rg1 Rb7 Rc6 Bc4 Bc8 Be6 Qb1 Qdd2 Nbd7 Ra2 Bh8 Kh6 Bf1 Nge5 Ra6 b2 c6 Qd3 Nd5 Qdd4 Be2 Rg7 Qa1 b1N Bb6 Rb2 Qa2 Nc3 Rg2 Rh7 Rg8 Rg7 Ba7 Rg6 Bb8 Rg2 N7b6 Ng4 Bhe5 Nb5 Bec7 Kh5 Nf6+ Kh6 Rh8+ Kg5 Rg8+
3rB3/1qp1n2p/3Rr3/b1q1rPNR/3b1BQ1/1PpqR2n/1N2b1R1/1q1k3K b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 f4 Kf7 Kf2 Kf6 d4 Kf5 d5 e5 b3 a5 g3 e3+ Kg2 Ke4 f5 h3+ Kh2 e2 g4 e1R d6 a3 d7 a4 g5 a2 g6 a3 g7 Ba6 Bf4 Nc6 Qc1 Nf6 g8R Bg7 Ne2 Kf3 Rf8 e4 Bh6 e3 Bf4 Ne7 Rg1 Ne4 Qc2 Bd4 Bd6 Ng5 Rf6 Re8 Nc1 e2 Kh1 h2 Bf4 Nh3 Nc3 Kf2 Rb1 a1Q Be5 a2 Rb2 Qb1 Rd6 a1Q Qe4 Qa5 Qg4 Qc5 Bf4 Bb5 Re6 Ra6 Re5 Re6 Re3 Rd1 Rg2+ Ke1 Ra2 Rd2 Ne4 Kd1 Nd3 Re5 Qg3 e1B Qg4+ Re2 Ng5 Ba5 Ra4 c3 Rb4 Bc4 Rb6 Bb5 Rh6 Ba6 Rh5 Re6 Rf3 R2e5 Nb2+ Ke1 Na4 Kd1 Bb5 Rh8 Bc6 Be2 Rfg3 Qe8 d8R Qd7 Re3 Rg8 Rb8 Rd8 Rb6 Qdd5 Bb5 Qdc4 Bc6 Qcd3 Nb2+ Ke1 Rf2 Nc8 Be8 Ne7 Rd6 Kd2+ Kg2 h1Q+ Kg3 Qf3+ Kh2 Qb7 Rg2 Kc2 Nc4 Kc1 Kh1 Kd1 Nb2+
1Brr1R2/2n3rQ/1pr2P2/2r4R/NrqpkBN1/2B5/B1pbPb2/1n1b1K2 b - - 0 1 illegal: No proof kernel
n1R1b3/qrr2NKn/1n2Pn1B/2pn4/NP1b1qBN/pR4n1/1Q3p2/2N3k1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 f5 g4 h5 e4 a5 b3 h3 g5 c3 d3 f3 g6 f2 g7 c2 Ra3 h2 Bg5 c1Q Bg2 f1N Be3+ Qd4+ Kf4 h4 Kg5 f4 Kg6 h3 e5 f3 e6 Nf6 g8N Nh7 Qe2 Nd7 Bg5 Rb8 Bh6 Nb6 Bd2 Ne3 Nf6 Ned5 Qe4 Na8 Ne8 Rb7 Qh4 Ndb6 Ne2 Bg7 Kf7 Bd7 Ra1 a3 Qd8 a2 Rf1 h1N Na3 h2 Qf6 a4 Bh6 Ng3 Nb1 h1N Nd6 a3 Nbc3 Ne4 Nf5 Qf4 Rfc1 Rc8 Rab1 a1N Nh4 Nc2 Bh3 Ne3 Bg4 Nhg3 Na4+ Kd5 b4 f2 Rb3 Be8+ Kg8 c6 Rc4 Rcc7 Nc1 Qc5 Qb2 Bd4 Rc2 Nef6+ Kh8 Ke5 Rcc3 Ned5 Rc2 Nbd7 Kg7 Qa7 Rcc3 Bc5 d4+ Ke4 Rc2 N7b6+ Kh8 Ne3 d5 Bd4 d6 Ned5 d7 c5 d8N Bd7 Kg7 Be8+ Nf7 Qb8 Nd3 Qa7 Rc1 Ke3 Rh1 Ke4 Qb1 Ke3 Nc1+ Kd2 Rh2 Ke1 Qb2 Kf1 Nf5 Bd7 Rh5 Be8 Nh4 Nc3 Rd5 Kg1 Rd8 Ncd5 Rc8
rN3n2/1nb2K2/P2b3q/2pN2Rp/nN2bp1Q/1rP1nk2/Nbb5/4BB1R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxf4 e4 axb4 e5 b5 h5 Ra3 h6 Rh3 e6 Rh2 Bc4 dxe6 Be2 e5 Bf1 e4 Ne2 Bxh6 Ng1 Bf8 Ke2 Kd7 a4 Kd6 d4 Kd5 a5 e5 a6 h5 Bd2 f5 Be1 c5 Bg3 f3+ Ke3 f2 Na3 b3 Bh4 b4 g4 b2 g5 b1N g6 b3 g7 f4+ Ke2 b2 Bf6 e3 Kd3 e2 Nc4 e1B Qe2 Rh3+ Qe3 e4+ Ke2 Nh6 g8N Bf5 Ra2 Nf7 Na3 Qb6 Bh4 Ba5 Qg3 e3 Kf3 Nd7 Ne2 Bd6 Nc1 e2 Ra1 e1B Na2 Nd8 Ne7+ Ke6 d5+ Ke5 Rg1 Nc3 Rg2 b1B Rg1 Bc7 d6 Nb7 Nd5 Nf8 d7 Bd6 d8N Na4 Rg2 Bg6 Nc6+ Kf5 Rg1 Bec3 Nb8 Bb2 Rh1 Qc6 Rg1 Bac7 c3 Bc2 Rb1 Rh1 Qh2 Ke5 Rg5+ Bgf5 Bg3 Qb6 Qh4 Rg1 Bb5 f1N Be1 Ne3 Bf1 Rg2 Rc1 Rd2 Ra1 Rd4 Rd1 Rb4 Rb1 Rb3 Rd1 Bb1 Nc2 Rg8 Ncb4 Bc2 Rd2 Rh8 Rh2 Rg8 Rh1 Qc6 Ke2 Ke4 Kf2 Nc4 Kg2 Ne3+ Kh2 Bh7 Kh3 Kf3 Qg4+ Ke4 Kh4 Be7 Nd7 Qh6 Qg3 Bed6 Rf5 Ne6 Qh3 Ra8 Nb8 Nf8 Qg4 Qe6 Kg5 Bg6 Qh4 Kf3 Kh6 Bh7+ Kg7 Bg6 Re5 Bge4 Rg5 Qh6+ Kf7
B2b1N2/4bn1P/p3R3/1q1b2b1/pQnPB2r/1b4b1/2k1KRp1/rq2BB1N b - - 0 1 illegal: No proof kernel
KnN3B1/1N1rb2p/bpRpP2q/1n3R2/1R1bBRn1/1P6/2rb2nb/1Q5k b - - 0 1 illegal: No proof kernel
8/rR1n1bK1/7p/N1B2b1P/nr1p2QN/NB1rN3/Pkr3p1/1nb1qRb1 b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 f5 b4 fxg4 b5 a6 Nc3 axb5 Nb1 bxc4 Qa4 c3 Qb3 Ra4 Qd1 Ra8 f4 Kf7 Kf2 Ke6 Kg3 Kd5 h4 Kc4 e4+ d3 h5 g5 f5 c5 e5 d5 e6 b5 f6 b4 f7 c2 e7 d4 e8N b3 Ng7 h6 Qf3 b2 Ne8 Ne7 Bf4 c1R Bc7 Ra7 Bh3 d2 Qf5 d1B Qg6 Nd5 Qh7 Nd7 Bb8 Bb3 Qg7 Nc3 Qg8 Rc2 Nc7 Qe8 Na8 Na4 Na3+ Kc3 Rf1 b1N Nf3 c4 Nb6 Kb2 Nd5 c3 Bd6 Rh7 Nh4 Qe1+ Rf2 Rd2 Rf1 c2 Bc5 c1R Ne3 Rcc2 Qg7 Be7 f8N Rd3 Nfg6 Bf7 Ne5 Rb7 Qg6 Rb4 Nc6 Bf6 Na5 Rg7 Kg2 g3 Kf3 g2 Ke4 g1B Be6 g4 Kf5 g3 Qg4 g2 Bb3 Bd8 Rf4 Bg5 Re4 Bf4 Re7 Rh7 Nd5 Bc1 Ne3 Nb8+ Kf6 Bf5 Rb7 Nd7+ Ke7 Rh8 Qg7 Ra8 Qg4 Nf8 Kf6 Nd7+ Kg7 Ra6 Qg6 Ra7 Qg4
1b4n1/1kr1r3/n1NP3B/K1N1rB1b/1p1q4/b2BppR1/QBP1n3/1b1n1R2 b - - 0 1 illegal: No possible last move, all moves rejected
qBn1Qr2/B1R3R1/pP6/4nbn1/P2B2r1/pNr4b/pb2Nrb1/B3K2k b - - 0 1 illegal: No proof kernel
b1k3b1/bN2qN1p/2R1rr2/3pBN1n/1rR1BQnb/2p5/nP2K1PN/1r6 b - - 0 1 illegal: No proof kernel
2b2nR1/BNNqB2p/1P1Qr2r/b3n3/p1n2K1b/PRb2R2/2n2k1p/3R2r1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxe4 h5 bxc4 h6 f5 Be2 f4 Qc2 f3 Kd1 gxh6 Qb3 fxe2+ Kc2 h5 Kc3 h4 Qd1 Bb7 Kc2 Bc8 f4 Kf7 d4 Kg6 Kd2 Kf5 Ke3 Kg4 b4 Kg3 b5 e1B a3 a5 d5 e5 d6 c5 d7 c3 f5 a4 f6 c2 f7 h3 Rh2 c4 Bd2 c1R Bb4 c3 Bd6 c2 Qd2 Nf6 Qd1 Ba5 Qh5 Ne8 Qf5 Be7 f8R Bh4 Nf3 Ra6 Nbd2 Rg1 Rd1 c1N Ng5 Nd3 Bc5 Rh6 Nb3 Nd6 Ba7 Bc3 Rh1 h2 b6 Rg8 Qf7 Rgg6 Nc5 Re6 Qe7 Ba5 Nb7 Nc4+ Ke2 e3 Qd6 Qc7 d8B Nd7 Be7 Qd8 Rf4 e4 Rf5+ N3e5 Rf3+ Kg4 Rb1 Nf8 Rb3 Qd7 g3 Ref6 Ne6 Bc3 Nc7 Re6 Rf6 Kh3 g4 Kg3 g5 Ba5 Rf1 Bc3 Kd1 e2+ Kc2 e1B g6 e3 g7 e2 Rf3+ Kg2 Kc1 Bed2+ Kc2 e1N+ Kd1 Nc2+ Ke2 Ng4+ Kd3 Nge5+ Ke4 Ba5 Kf5 Bdb4 Kf4 Bc3 g8R+ Rhg6 Rd3 Kf2 Rg3 Rh6 Rh3 Rg3 Rd1 Rg1 Rf3+
2bb3q/nq3n2/r2R1Rr1/2b5/Pb1Rppk1/1R1B3n/pP1Q1nK1/B1NN4 b - - 0 1 illegal: Other
2b1B1R1/3rN3/bRK1Qpq1/2N1p1R1/4Pp1P/kbq1bnr1/5B1q/qR5n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Nc3 gxf6 Nb1 f5 Ba3 f4 Bb2 Rh7 Bc1 Rh8 Kd2 b5 Kd3 e5 Ke4 Ke7 Kd5 b3 h4 d3 c4 g3 a4 d2 a5 f6 a6 g2 c5 b2 e3 b4 c6 b3 c7 Nc6 a7 Rh7 Ne2 g1Q Ra5 Nd4 Rh2 Nh6 Ra4 Ng4 Ra3 Nf2 Rh3 Qh2 Ra4 Nf3 Nec3 Nh1 Qe1 d1Q+ Nd2 b1Q Rb4 b2 Ra4 Qg6 e4 b1B Qg3 Bd3 Ra1 Bda6 Qg4 d6 Kc6 d5 Bb2 d4 Bb5 d3 Rb1 Qd4 Nb3 d2 Nc5 Qb3 Ba1 d1B Rg3 Qa3 Qf5 Bb3 Rg5 Qaa2 Bb2 Qa1 Qh3 Rb8 a8R Rg7 Bc1 Rb7 Rb8 Ra7 Rb6 Qdd2 Ne2 Qdc3 Be3 Rb7 Bf2 Ra7 Rb7 Rg8 Ng3 Rg7 Kb6 Kd6 Be8 Qa3 Nd3 Qf7 Rb8 Bg4 Rb7 Qaa1 Rh5 Bge6 Rf5 Rg4 Rg5 Qg6 c8R Bd7 Rcc7 Bc8 Rg7 Be7 Rb8 Rd7 Rg8 Bf8 Ne2 Rg3 Nd4 Be7 Nc6 Bf8 Rb7 Be7 Ka7 Bd8 Ne7 Bb6+ Kb8 Be3 Rb6+ Qc6 Ne1 Kc5 Nd3+ Kc4 Qf5 Kc3 Qe6 Qc4 Nc5 Qd3 Rg1 Kb2 Rb1+ Ka3 Ka8 Qdc3 Kb8 Rd8 Kc7 Rd7+ Kc6
1Rq5/bnk2b1q/1n1p1Kpr/4n2r/2q1pNNQ/2PN3P/B4B2/1N2R1nq b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 b5 a4 e5 f4 b3 h3 b2 c3 b4 f5 d3+ Ke3 d2 a5 b3 a6 g3 a7 g2 f6 Ne7 Ra6 Ng6 Be2 Rh6 Nf3 g1N Ra1 Bc5+ Nd4 d6 f7+ Kd7 f8N+ Kc7 Bc4 Be6 Qc2 d1Q Qf2 Qc8 Bd2 Qg4 Ba6 Nd7 Nh7 Bf7 Bc4 Nb6 Qh4 Rb8 Nf6 Rb7 Na3 b1Q Be1 b2 Ba2 Qge6 Bg3 Qc4 Ng4 Qbf1 Rh2 b1Q Rb2 Qg2 Bf2 Qh1 Kd2 Rb8 Ne2 Bd4 Nc1 e3+ Kd1 e2+ Kd2 e1N Nd3 e4 Rb3 Ne5 a8N+ Kb7 Rb5 g6 Nc7 Ra8 Rb2 Ra5 Ne6 Kb8 Nef4 Kc7 Rb4 Qbb3 Nb1 Rc5 Nc1 N1d3 Rb5 Rd5 Rb4 Nc5 Ncd3 Nb7 Rb5 Na4 Rb4 Ba7 Rb5 Na5 Rb8 Nb6 Ke3 Qd1 Ne2 Qda4 Kf4 Nb7 Kg5 Qae8 Kf6 Qg8 Nef4 Qh7 Nh5 Nc6 Nhf4 Rdh5 Na3 Ne5 Re1 Qh2 Nb1 Qg2 Rf1 Qh1 Re1
R2n1knr/b6p/R2B4/1p3P2/3pQqq1/1Rrb3N/1rB1qr1P/q1N2R1K b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 f5 b4 fxg4 b5 a6 Nc3 axb5 Nb1 bxc4 Qa4 c3 Qb3 Ra4 Qd1 Ra8 e4 d5 f4 b5 Kf2 c5 Kg2 g5 a4 d3 a5 g3 e5 c2 e6 c4 e7 d4 a6 g4 a7 d2 Ra5 c3 Ra2 Bf5 Qe1 d1R Rb2 Bd3 f5 Rd2+ Be2 Nc6 Kf1 g2+ Kf2 g3+ Kf3 Qc8 Bd1 Qe6 Qe2 Nd8 Qe4 Rf2+ Kg4 Qe5 Bh6 c1R Kh3 c2 Nd2 Kf7 e8R Bc5 Bg7 Rc8 a8R Rb1 Ra3 c1Q Bf8 Ba7 Bd6 Rc3 Nb3 Qcf4 Nc1 Qe7 Rbb3 Rbb2 Bc2 Qee5 Nf3 g1Q Ra6 g2 Ng5+ Kg7 Rf8 Qe1 Rf1 g1Q Na2 Qa1 Nc1 Nc6 Ra8 Nd8 Nf3 Qg6 Ng5 Qe7 Ra2 Kf8 Ra6 Rf3+ Kg2 Rf2+ Kh1 Qg7 Nh3 Qgg4 Be5 Qe8 Bc7 Qeh5 Be5 Qe2 Bc7 Qhg4 Bd6+
5b2/2pN3r/1p1rq2n/qP1p1qRb/2N1B1Q1/1KR1RP1B/3r1R1n/q1k3r1 b - - 0 1 illegal: No proof kernel
2R4k/1R4pn/2rQ1p1r/K2brPn1/2BR1bbp/N1R5/BPNn3p/1q3q2 b - - 0 1 illegal: No proof kernel
7Q/q3P1rb/2NRqpBB/b6k/RrRbp2n/p4p1P/q2n4/4nNRK b - - 0 1 illegal: No proof kernel
1Nr2rR1/B1p1K1Nq/p6p/2P1R2q/QRrR2P1/k2b1nb1/pq1b1B2/7n b - - 0 1 legal: proof: e4 b5 h4 d5 a4 dxe4 h5 bxa4 h6 f5 Bc4 f4 Ke2 f3+ Ke3 gxh6 Bf1 h5 Be2 Kd7 Kd4 fxe2 Kc4 h4 Kc3 Ke8 Kc4 e1Q Kc5 Kd7 g4 e5+ Kd5 h6 b4 a6 d4 e3 c4 e4 f4 a3 c5 h3 b5 h2 f5 a2 b6 e2 b7 e3 f6 Qc3 f7 e1R Nh3 e2 Bg5 Qe7 Nf4 Qb2 Na3 Nc6 b8B Ne5 Nh5 Nf3 Nb5 Rf1 Bh4 e1B Qa4 Bd2 Bg3 Rc1 Ba7 Rc4 Rhb1 h1Q Bf2 Qh3 Ng7 Qh5+ Nf5 Bg7 f8R Be5 Ng7 Bg3+ Rf5 Rb8 Re5 Ra8 Nf5 Qh7 Ng7 Qc1 Rb4 Qb2 Re1 Rb8 Rg5 Ra8 Ree5 Rb8 Rg6 Ne7+ Ke4 Nf5 Kd5 Rf8 Rg5 Kd8 Rg6 Bb7+ Ke6 Be4 d5 Bd3 d6 Kc8 d7+ Kb7 d8R Kc6 Rd4 Rbc8 Qd1 Bh2 Rg5 Ng3 Ke7 Nh1 Qa4 Bg3 Rgf5 Rh8 Rf8 Rg8 Rfd8 Rf8 Re8 Rf5 Rh8 Rff8 Rg8 Rc2 Qb3 Q5f5 Nd6 Qh5 Ne8 Rc4 Qd1 Qe4 Nf6 Qh7 Ra4 Kb5 Nd7 Rc2 Nb8 Rc4 Rb4+ Ka5 Rb3 Ka4 Rb4+ Ka3 Qa4#
1qbk4/RPPN4/pb1b2Q1/p4nNp/r1qprR2/3N4/2rN2BB/1K3nq1 b - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 d4 cxd4 a5 g5 a6 gxh4 Rh2 bxa6 Rh1 a5 Kd2 d5 g4 e5 c4 d3 f4 e3+ Kc3 a6 b4 d2 Kc2 e4 g5 h3 b5 e2 f5 e1B f6 h2 g6 e3 c5 e2 g7 Nd7 b6 Bd6 Bg2 Ne5 Nh3 Nc4 Nf4 Nh6 g8N Bf2 Nd3 e1R Qg4 Re4 Ra4 Nf5 Nh6 Nce3+ Kb2 d1Q f7+ Ke7 f8N Qe2+ Nd2 Nf1 Nf7 h5 Ng5 Rb8 Rg1 h1Q Kb1 Qc7 Ba3 Kd8 Nd7 Rb7 Bb2 Qb8 Be5 Re8 Rc4 Rc7 Bh2 Rd4 b7 Ree4 Ra4 Rc4 Rb4 Rc2 c6 Bb6 Qg3 Rh4 Rf4 Qe6 Rf2 Ra4 Rf4 d4 Qg4 Ng7 Qf5 Qc4 Qe6 Nf5 Qg6 N1e3 Re1 Nf1 Re7 Qg1 Rg7 Bb4 Rg8+ Bf8 N7e5 Rg7 Nd7 Re7 Qh6 Qe5 Nb2 Kc7 Nf6 Bd7 Nd3 Qd6 Qg7 Re4 Qg6 Be7 Ra8 Bc8 Ra7 Kd8 Nd7 Qb8 Bh3 Bec5 Bg2 Bd6 c7+
r2R3K/1pn1Rkr1/3P1b1n/pnRB1b2/Q1q5/1PR2r1b/1N2p1qp/B6N b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 c4 gxh4 a5 d5 a6 dxc4 Nf3 Nxa6 Ng1 Nb4 Qb3 Na2 Qc2 Nf6 Qd1 Ng8 Ke2 a5 Ke3 c5 Kf4 h5 Kg5 e5+ Kg6 e3 f4 h3 d4 h4 g4 c3 b3 e2 f5 e1R g5 e4 d5 h2 d6 c4 f6 e3 Qd2 c2 Be2 c3 Ba6 e2 Nh3 Nh6 Nf2 h3 Qd4 Nb4 Bc4 Rg1 Bd5 Bg7 Bb2 c1N Na3 c2 Nc4 Nca2 Rc1 Na6 Ba1 Rf8 Kh7 Bf5+ g6 Nc7 Nb2 Nc3 Qa4+ N3b5 f7+ Kd7 Qe4 Bf6 Qa4 Rg3 Rhd1 h1B Rd3 h2 Rc3 Bg2 Nh1 Bgh3 Rc5 Rg8 f8R Rg7+ Kh8 Rf3 Re8 Qe7 Rc3 Qe4 Rc5 Qg4 Rc3 Qg2 Rc5 Ng8 Re6 Kd8 Rc3 Nh6 Rc5 Re7+ g7 Ke8 Rd1 c1Q Rd3 Qc4 Rc3 Bg5 g8R+ Kf7 Ree3+ Kf6 Rc8 Rg7 Re6+ Kf7 Rd8 Bf6 Re7+
1bNQ3n/2Nr1r2/R1p2npq/1p2Kp2/N2BNP2/n3r3/2b3RP/k2r1rB1 b - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 d5 h5 d6 hxg4 Bg2 e6 Bd5 exd5 Kd2 Kd7 Ke3 Ke6 Kd4 b5 f4 c3 e4 g6 a4 g3 d7 g2 e5 c6 a5 b3 a6 c2 a7 b2 Nd2 b1N Ra2 Rh3 Bb2 c1R Qh5 Nh6 Nf1 Qg5 d8B Na3 Bc3 Nd7 Qe2 Nf6 Qc4 Re3 Qb3 Rd1+ Bd2 Bd6 Ne2 g1R Bb6 Bb8 Nfg3 Rgf1 Ne4 Kf5 e6 Bd7 Kc5 d4 e7 d3 Bc3 d2 Kd4 Be6 Qc2 Bb3 Qd3 Bc2 e8N Qh4 N8d6+ Ke6 Ba1 Qh5 Kc3 Qg5 Bd4 Kd5 Nc8 Rde1 Rg1 d1R Nf2 Ne8 Rg2 f5 Nd6 Rg3 Be5+ Kc5 Ng4 Nc4 Nf2 Nf6 Ra3 Nf7 Ra6 Na3 Bb2 Qh6 Bc1 Bc7 Bb2 Rg8 a8N Rd8 Nc8 Bb8 Nc7 Nh8 Bc1 Rd5 Be3+ Rd4 Nh1 Rh3 Bg1 Rg3 Nf2 Rd5 Kb2 Kb4 Nc3 Re4 Na4 Rge3 Qd2+ Kc4 Bc3 Re7 Ne4 Rd8 Qd7 Rf7 Qe7 R8d7 Qd8 Kd3 Be5 Bb1 Kb3 Bc2+ Kb4 Qh4 Kc5 Qh6 Nf2+ Kd2 Ne4+ Kc1 Bc3 Kb1 Bd4 Rde7 Kd6 Rd7+ Ke5 Ka2 Ba7 Ka1 Bd4+
K1bRk2N/1P1pp3/4b2Q/br2qn2/1rR5/p2nN1Nn/2rpB1P1/1bB1N3 b - - 0 1 illegal: No possible last move
1r2r2B/p1n1B3/1RB2P2/p2np2b/nb1rNkN1/pP5b/q1n2Q1K/R3B3 b - - 0 1 illegal: No proof kernel
4nK1n/8/P2rb3/3Bn3/pqNB1Pq1/b1n3pR/2pBp1kB/rnQ2N1R b - - 0 1 illegal: No possible last move, all moves rejected
N7/1k5N/P1p1q3/QB1nRP1n/1r1b4/p2p1KRR/pbbq1b2/BR3br1 b - - 0 1 illegal: No possible last move
6nB/1PnRpB2/bK4n1/1p2q1bR/1Pr3rp/1B1p1NkB/2qQ2n1/4N2n b - - 0 1 illegal: Other
1nnrR3/3k1b2/3Bpn2/5qRp/3b1p1P/1Qnpb2P/BNNq1R1K/2R1r3 b - - 0 1 illegal: Other
bnq2Bb1/RB1b4/1b1P1N2/p1r3RK/2N3Q1/nnp3P1/1Bp4p/1Bq3kr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Ke6 Kg4 Ke5+ Kh5 Kd4 b4 f5 e4 c5 g3 a5 d3 f3 e5 a3 e6 c3 b5 a2 e7 h3 e8B c4 b6 h2 b7 f4 Bd2 c2 Bc1 f2 Na3 f3 Bh3 f1Q Bf4 f2 Bg4 c3 Nc4 Bc5 Nd2 Ne7 Bh6 Nf5 Bc6 Bb6 Qe2 Ne3 Re1 a1N Bf8 Nc4 Ne4 Bd7 Be6 Qc8 Nf6 Na3 Ba2 Nb3 Bb1 h6 Qe6 Rh7 Re3 Qc1 Re5 f1B Rg5 Ra6 Qg4+ Ke3 d4 Kf2 d5 Bc4 d6 Bg8 Nf3 Ra7 Re1 h1B Ne5 Ra6 Re3 Kg1 Nc4 Bhd5 Re7 Rh8 Kg6 h5 Rh7 h4 Kh5 Bh1 Bg2 h3 Bd5 Nc6 b8B Ra8 Bc7 Nb8 Bd8 Ra7 Bde7 Rc7 Bb7 Rc5 Bh6 Bf3 Bef8 Bh1 Ba6 Ba8 Re7 Bdc6 Ra7 Bd7 Bb7 Rh7 Rd5 h2 Rf5 Re7 Bf4 Re1 Rg5 Kf2 Bd2 Rh1 Bf4 Kg1 Bd2 Qe1 Bc1 Qd2 Bb2 Qd1 Nd2 Qc1 Nc4
R2bBRn1/6k1/p1bKPrp1/3b1PR1/1r3B1n/2pq1bp1/Qq5r/2R2NN1 b - - 0 1 illegal: No proof kernel
1k5B/1q4PB/qNb2p2/1p1b1n1r/2Qp1b2/1KRqP3/Np2n3/NN1R1br1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 b5 g4 d5 a4 Kd7 c4 Kc7 Kc2 h5 c5 f6 g5 f3 c6 b3+ Kb2 d3 a5 d2 a6 h3 e3 f2 a7 h4 g6 h2 Ra2 h3 Ra6 Be6 Nf3 Rh5 Ne1 Ne7 Qe2 d1Q Nc2 Bh6 Ra3 Qd6 Qc4 Nf5 Bd3 f1B Na1 Bf4 Kc3 Kc8 c7 Qa6 Bb2 Kb7 c8N Nc6 Ne7 Rg8 a8N Kb8 Nb6 Ncd4 Rg1 h1B Nc6+ Kb7 Bc1 h2 Nb4 Kb8 Na2 Ne2+ Kb2 d4 Bd2 Rc8 Bb4 Bc6 Bf8 h1Q Bg7 Bed5 Bh8 Qe4 Bc2 Qdd3 g7 Qe7 Rh1 Qeb7 Rg1 Bfg2 Rd1 Bf1 Ra5 Rc7 Ka3 b2+ Kb4 Rh1 Ra3 Rg1 Rc3 Re7 Kb3 Re5 Nd2 Nh6 Nb1 Rh5 Na3 Nf5 Bb1 Qd2 Be4 Qd3 Nb1 Nd6 Bg6 Nf5 Bh7
1R2kB1R/n1b3P1/p1p2p2/1bpN4/1n3nK1/2n1q3/1qR1QP2/rbBrNR2 b - - 0 1 legal: proof: c4 g5 h4 gxh4 a4 b5 d4 bxa4 e3 Bh6 d5 Bf8 c5 d6 Bc4 dxc5 d6 e6 Bd5 exd5 Ke2 h5 Kf3 a3 g4 f6 b4 d4 e4 h3 b5 d3 b6 d2 g5 h2 g6 h4 e5 c6 e6 a2 b7 h3 g7 Ne7 Qe2 d1N Ba3 Na6 b8R Nc3 Rb7 Nb4 Rd7 Ba6 Kg3 Nc8 e7 Bb5 Qf3 a6 Qg2 Na7 Nf3 Qa5 Rf1 h1N+ Kf4 h2 Qg4 Rd8 Rb7 Ng3 Bc1 h1B Rb8 Qa3 Ne1 Be4 Qe2 Nh5+ Kg4 Nf4 d7+ Kf7 e8R Bd6 Rh1 Bc7 Rf1 Rh1 Rh8 Qb3 Nd2 Bc2 Nc4 Bb1 Ne3 Qb2 Nd5 Qd2 Qf3 Qe3 Qe2 Be4 Rb1 a1Q Rb2 Bb1 Rc2 Qb2 Kf5 Rf8 d8B Ke8 Kg4 Rg8 Rh2 Rf8 Rh6 Rf7 Rh3 Rd7 Be7+ Rd8 Rb7 Rd7 Bf8 Rd6 Rh8 Rd8 Nb6 Rd1 Rb8+ Nc8 Rg1 Ba2 Ng2 Re1 Bd2 Ra1 Bc1 Bb1 Re1 Rh5 Rh1 Rd5 Rf1 Rd7 Ne1 Rd1 Rb7 Na7 Nd5 Ra2 Rb6 Ra1 Rb8+
2nBNN1N/2R1pqpR/n2bP2Q/8/Pr1pK1N1/bb3rkq/1n2B1p1/n7 b - - 0 1 illegal: Other
1R2K2R/2bpB1Rb/q1p4p/QP2BNR1/bqP4r/4p1n1/rN1q4/1k3b1n b - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 a4 bxa4 e5 g5 Bc4 gxh4 Bd5 f5 Be4 fxe4 Ke2 Kf7 f4 Kg6 b4 Kf5 g3 a5 e6 d3+ Ke3 d2 Kd4 e3 Kd5 a3 e7 h3 e8R c6+ Kd4 h2 c3 a2 Nh3 a4 Qg1 d1B Qf2 a3 Nd2 Qe7 Nc4 Nh6 Ng5 Ba4 Qe1 Na6 Nf3 Nc5 Nb2 Ba6 Rb8 Bf1 b5 Nd3 c4 Nf2 Qa5 Qb4 Bd2 Bd6 Bc3 Bc7 g4+ Kf6 g5+ Kf5 Rd1 a1Q g6 a2 g7 Qc1 g8R a1Q Rg7 Ra6 Rhg1 h1B R1g6 Bhg2 Rd2 Nh1 Rg5+ Ke6 Ke4 Nf5 Be5 Nfg3+ Kd4 Ra8 Nh4 Be4 Nf5 Bed3 Rg2 Qcd2 Rh5 h6 Rhg5 Rf8 Rh7 Rf6 Rgg7 Rg6 Rhh8 Rg4 Rg1 Rh4 Rg2 Qb3 Kc5 Ra6 Ne7 Bh7 Nf5 Ra8 Rg5 Bd6+ Kb6 Qbb4 Kb7 Qa2 Kc8 Ra7 Kd8 Bc7+ Ke8 Qa1 Bc3 Qaa3 Ng7+ Kd6 f5 Kc5 Be5 Qa2 f6 Qa1 Bd6+ Kd4 f7 Kc3 f8B Kc2 Nf5 Kb1 Be5 Bb3 Qa3 Nh5 Rgg8 Ra6 R2g5 N5g3 R8g7 Bc2 Qb3 Qaa5 Bc5 Qb6 Qd3 Ra2 Be7 Qa6 Qa3 Bb3 Qa5 Bd1 Rb6 Ba4 Rb8
1Q2BNB1/nP1qkbNB/2p2pn1/B3bb1R/1K3pp1/5qP1/q1Rr3r/3b4 b - - 0 1 illegal: No proof kernel
1B4bq/p1p3P1/1bp1k1KP/qq6/pBn3n1/2nR4/N1BN1r2/2BRQ1rq b - - 0 1 illegal: No proof kernel
2Nb4/4nbnr/5NQ1/1P2pP1p/BR1n2nq/Kp4r1/BRBp2n1/4Bkn1 b - - 0 1 illegal: No proof kernel
2RKB3/NQ3N2/1rPp4/pk4r1/p1q1pb2/2rRP2N/b1N3Br/2nrnr2 b - - 0 1 illegal: No possible last move
N1RK3n/k4N1N/1p3r1p/1b1Rn3/pPQ1N1pP/1bn4p/q1B5/1rb1B1r1 b - - 0 1 illegal: No proof kernel
2q3R1/qkb2BQ1/Pr1Bp1n1/ppn2R2/B2BN3/1p1P1r2/6pK/nb2Nr2 b - - 0 1 illegal: No possible last move
1r2NB2/1Q3qp1/q2pnPR1/r1B2p1b/B1kN3p/p6q/RbPB3r/6Kn b - - 0 1 illegal: No proof kernel
2B3K1/PR3p2/Q3qN1B/1qb2R1q/n1NP1pNp/r1k5/1p2rp2/3bnb1N b - - 0 1 illegal: No proof kernel
1b2B1bq/1p1r1pP1/1nQ5/Kb2b1n1/R1p1p1rN/NNP2RB1/1p5k/2nN4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 f6 gxf6 g5 f5 Qf3 f4 Qg4 hxg4 d4 Kd7 Kd2 Kd6 a4 c5 h4 e5 c3 g3 a5 g2 h5 e3+ Kd3 f3 Kc4 f2 Kb5 b3 h6 e2 d5 e1N a6 e4 g6 Ke5 d6 b2 a7 Nd3 g7 Bf5 d7 Nf6 h7 Bd6 Be2 f1B Nh3 g1B Na3 Bd4 Nf2 Qe8 Bd2 Nc1 Be1 Kf4 Ka5 Kg3 d8N Nbd7 Ne6 Rd8 a8Q Bb8 Bb5 Bde5 Qa6 Nb6 Nd4 Rd7 Nb3 Qc8 Bc6 Bb5 Rf1 c4 Nd1+ Kh2 Rf3 Re8 h8N Bh7 Nc5 Bg8 Nb3 Nh7 Ng6 Re6 Nh4 Rg6 Bf2 Rg4 Bg3+ Kg1 Ra2 Ng5 Ra1 Bh7 Ra2 Qh8 Ra1 Bg8 Ra2 Rd2 Be8 Rd7 Ra1 Nc8 Qc6 Nb6 Nc2 Kh1 Ra4 Kg1 Na3 Kh1 Be1 Kh2 Bg3+
n3R1n1/1p1qPr1p/2bBr1p1/2P2N1Q/pn3K1b/2p1R3/1Rn1r3/2Nk1BR1 b - - 0 1 illegal: No proof kernel
B3R1Q1/R1pBrb1N/K2pP2q/B5kp/2r1nn1N/1p1bbq2/4pP2/2B3b1 b - - 0 1 illegal: No possible last move
rn4Rn/1p1RRp2/Rb1p1n2/qnBN1b1B/1pN3p1/2P3Q1/1rq4P/5K1k b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 f6 cxd4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Ke7 a4 Kf6 e5+ Kg5 e6 Kh4 e7 g5 e8R d3 a5 f3 a6 d2+ Kf2 g3+ Ke3 f2 Ke2 g4 a7 g2 Bb2 Qa5 Re3 Bc5 Bc1 d6 Nc3 Bf5 Re7 Bb6 Rd7 Nf6 Qe1 d1N Nd5 Rc8 Nf3+ Kh3 Be3 Rc4 Ne5 Nc3+ Kd2 Rc5 Nc4 Nb5 Bd3 f1Q c3 g1N Qf2 Qg2 Ke1 Ne2 Be4 Rc8 Bc5 Re8 Bb1 Qe4 Kf1 Nf4 Bc2 Ng6 Re1 Qf4 Ree7 Qd2 Bb1 Nh8 Qe1 Bh7 Bg6 Qc2 Bh5 Bg6 Rg1 Bf5 Rg2 Qc1 Ra2 Qb1 Ke2 Kg2 Qg3+ Kh1 Kf2 Qc2+ Kf1 Nc6 Re1 Re3 Raa1 Rd3 Ree7 Rd2 Ra3 Qca4 Ra2 Rb2 Ra1 Qc2 Ra3 Rf8 a8R Rb8 Ra6 Ra8 Ra1 Nb8 Rae1 Qb3 Re8 Qba4 Rg8 Qc2 Ree7
2B1R1KQ/3rR1p1/pb1p1p2/pnPnqp2/kr2N3/1b6/B4PN1/NnN2r2 b - - 0 1 legal: proof: d4 h5 a4 c5 g4 cxd4 a5 hxg4 a6 bxa6 Bg5 a5 Bf6 exf6 Kd2 f5 Kd3 a6 Kc4 d6 Kd5 Kd7 e4 d3 c4 g3 h4 g2 b4 d2 e5 f6 b5 Rh6 c5 Rh7 b6 Ra7 e6+ Ke7 b7 Ra8 h5 Nd7 b8N Rh6 Bc4 Rh8 h6 Ra7 h7 Qc7 Ba2 Ne5 Nc3 Nf3 Nge2 g1R Nc1 Rf1 Ne4 Nd4 Qh5 d1N Rh3 Nb5 Re3 Qd7 Qh1 Kd8 e7+ Kc7 e8B Be7 Nc6 Bd8 Nd4 Qe7 Bd7 Qe8 Re1 Ne7+ Ke6 Ndc3 Ndb3 Nb1 Qh4 Bb7 Bc8 Kc6 Qh5 Rf8 h8N Bb6 Ng6 Ba8 Qh7 Rd7 Nf4 Rh8 Qh2 Rh4 Ng2 Rg4 Qh8 Rh4 Ng3 Rb4 Re4 Na7 Re3 Kb5 Ne4 Ka4 Re2 Nb5 Re1 Qd8 Kf7 Qc7 Re2 Nd5+ Kg8 Qc6 Ned2 Qc7 Re7 Qd8+ Re8 Qe7 Ne4 Qe5 Ne2 Nd2 Re1 Nb1 Re7 Ndc3 Na1 Bd5+ Kf8 Bb3 Nc1 Nd5 Kg8 Qh2 Re8 Qf4 Nd2 Qd4 R1e7 Qe5 Ne4
kn4q1/BbP2pp1/2N3p1/2K2nQ1/rp2Pn2/1pRppR1r/1RNb2B1/7R b - - 0 1 illegal: No proof kernel
2rR1NK1/7B/1b1Npb2/3Pr3/1P2p1Q1/2k1Q2n/Q3bnqN/2B1nn2 b - - 0 1 legal: proof: e4 h5 g4 c5 gxh5 b5 b4 f5 a4 fxe4 c4 bxa4 Ne2 a3 d4 d5 cxd5 cxd4 Ra2 a6 Rb2 a2 Ng1 Nh6 Bxa6 Ng8 Bf1 Bh3 Rc2 Be6 Rc8 Bxc8 Ke2 Kf7 f4 Kf6 h4 a1B f5 Ke5 h6 g5 h5 d3+ Ke3 d2 f6 g4 h7 e6 h6 g3 f7 g2 Qe2 Ne7 Qg4 Nd7 Nc3 Nc5 Nb5 Nd3 Nd6 Ba6 Rh3 Bg7 f8N Bf6 Rh1 Rg8 h8Q Rc8 h7 Ne1 Bb5 Rg5 Be8 Be2 Bg6 Bc3 Qg8 Qa5 h8Q Qa2 Qhh3 Qb2 Bh7 Nf5+ Kf2 Kd4 Nf3+ Kd3 Nh2+ Ne3 Kg3 d1N Kh4 g1N Qhg2 Re5+ Q8g5 Bd2 Kh5 Nf2 Kg6 Nf1 Kf7 Be3 Kg8 Bb6 Qe3+ Kc2 Q2h3 Qa2 Qa3 Qb2 Qhe3 Ngh3 Rg1 Bd3 Qa2 Kc3 Qgf3 Qc2 Rg5 Qb2 Qg4 Qe2 Rg7 Qf3 Rd7 Qg2 Qh6 Ba6 Rd8 Be2 Qe3+
q1b3Kn/1r1rQQ1R/qrrPn2p/2r1B2N/3kP1nb/8/1R5Q/4R2B b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 exf4 Nc3 d5 cxd5 b5 Ne4 bxa4 b5 a3 Bxa3 a4 Bc1 a3 Nf6+ Ke7 Ne8 Kxe8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 h6 e4 a2 b6 h3 b7 f3 g5 f2 d6 h2 d7 f4 Ke6 f3 Kf7 Ne7 g6 Nbc6 b8Q Kd4 g7 Ng6 g8R Ra7 d3 Rb7 Bd2 Rh7+ Rg7 Be7 Nh3 Nh8+ Ke6 Bh4 Rb1 a1Q Nf4 Qa6 Bh3 f1N Qc1 f2 Bg4 Ne3 Re1 h1R Bf3 f1R Nh5 Ng4 Rb2 Rf2 Bb4 Rc2 Qf4 Rc5 Qf7 Qg8 Bd2 Rb6 Bg5 Nd8+ Ke7 c6 Qh2 Ne6 Bg2 Rf1 Bh1 Rff5 d8Q+ Rfd5 Qdf8 Rd7+ Ke8 Rdb7 Bf4 Rd7 Qf5 Rdb7 Rc7 Rd7 Qf7 Rcd5 Bg3 c5 Bd6 c4 Bg3 Qg5 Q8e7 c3 Bf4 c2 Bd6 Nd8 Kf8 c1R Bg3 Qf5 Kg8 Rcc6 Bf4 Rdc5 Bd6 Kc3 d4 Ne6 d5 Kd4 Bf4 Qe5 d6 Qd5 Be5+ Kd3 Qff4 Qda2 Rbb1 Qa8 Qh7 Q2a6 Rb2 Rd8+ Qf8 Kc4 Rf7 Rdd7 Qe7 Kd3 Qf5 Kc4 Rh7 Kd3 Qff7 Kc4 Bf4 Kd4 Be5+
1Q2rk2/R2Kn3/2N2rb1/1b1NQ1Pb/2RB1R1q/q4p2/qq5P/1Qrn4 b - - 0 1 legal: proof: d4 a5 b4 c5 f4 cxd4 Qd2 e5 Qd1 exf4 a4 b5 axb5 a4 Qd2 Bd6 Qd1 Bc5 g4 g5 Kf2 h5 Ra3 Bb6 Ra1 Ba5 bxa5 Na6 Bh3 Nb8 Ke1 f3 Qd2 Ra7 Qf4 gxf4 g5 Ra8 Bg4 hxg4 Kd2 f5 Kd3 d5 c4 g3 e4 f2 c5 f1R a6 a3 b6 a2 e5 g2 b7 f3 a7 f2 c6 f4 e6 Qf6 e7 Rh6 c7 Na6 b8R Nb4+ Kd2 d3 Rb7 d4 Rb5 Nc2 Rd5 Ne3 Rd7 Nd1 Nf3 g1Q Rd5 Qg2 Nc3 Bf5 Bb2 Bg6 c8Q+ Kf7 Qa6 Re8 a8Q Qg3 Q8c8 Qh4 Ne5+ Kg7 Rc1 a1Q Qb6 Qa2 Nc6 Qd6 Qcb8 Qda3 Qb3 Rg1 Rd8 f1B Nd5 Be2 Rc8 Beh5 Rc7 f3 Rc5 Rf1 Rg1 Re1 Rg4 Rg1 Re4 Kf7 Kc1 d2+ Kc2 Rh1 Kd3 Re1 Kc4 d3 Kb5 Ne3 Qb4 d1B Bf6 d2 Bg7 Rf8 Qb6 Rh8 Na7 Be2+ Kc6 d1Q Bd4 Qdd2 Kd7 Rc1 Qb8 Bb5+ Nc6 Nd1 Rc4 Qdc2 Qb1 Qcb2 Be3 Kg7 e8Q Rf6 Qe5 Ne7 Rf4 Re8 Ra7 Kf8 Bd4
8/Kb3qr1/PP3r2/2BR2r1/2bbQ1Bq/Rr1p1Q2/2R2Q2/1knN1q1r b - - 0 1 legal: proof: e4 a5 b4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 c3 gxh4 Na3 Na6 Qd2 axb4 Qd1 bxa3 c4 b4 Bg5 Nc7 Bc1 Nb5 cxb5 Ba6 Bb2 Bb7 Bc1 Bc8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 d5 g4 e5+ Kc6 h5 g5 h3 g6 d3 b6 d4 f6 h4 f5 b3 g7 h2 a5 b2 f7 b1R a6 a2 f6 h3 Bb2 d2 Ba3 Qe7 Bc1 Rh6 Bg2+ Kd3 Qe1 Kc2 Qe4+ d3 Qe1 d1R Qe4 Rb3 Bf4 Be6 Qd4 e4 Be3 Ra7 Qe5 Bc4 Bd2 e3 Qc7 e2 Qf4 e1Q Be3 Qh4 Ne2 Rg1 Bf3 Rg5 Bg4 Rb7 Rhe1 h1R Qe4 h2 Bc5 Kb2 Rac1 a1Q Nc3 Rhg6 Rg1 Nh6 g8R Bg7 f8Q Qf7 Nd1+ Ka2 Rc3 Kb1 Rg2 Nf5 Rgc2 Ng3 Rh8 Rd7 Rh5 Ne2 Qa8 Nc1 Qf3 Rb5 Ra3 Rb3 Qe8 Bh8 Qe7 Rd6+ Kb7 Rg7 Kb8 Qd4 Qe8 Qg1 Qee4 Qf1 Qf2 Qe7 f7 Rf6 f8Q Qf7 Qee3 Rg1 Qfe7 h1B Ka7 Bb7 Q7e4 Rh1 Q3f3 Rd5 Bh3 Re6 Qfe1 Rg2 Kb8 Bd4 Qef2 Rg7 Bg4 Rf6 Ka7 Rdf5 Rh8 Re5 Rd8 Reg5 Rd5
2RBK1b1/QP4rp/2r2br1/1nN1Q3/b1Pqq1Q1/8/1q1R1k2/2r2rNR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 b4 a6 b6 Be7 b5 Nf6 e3 Nc6 b7 Bf8 b6 Na7 bxa7 Ng8 Bb5 axb5 Ke2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 c4 h3 g4 Kh4 e4 Kg3 g5 h2 e5 d3 e6 b4 e7 f3 Kd6 f4 g6 b3 g7 b2 Qa4 d2 Qa6 d1R+ Bd2 f2 Ra2 f1R Qc6 f3 Qb5 f2 Qa4 Nf6 g8Q+ Bg7 e8Q Nd5 Qa6 Nc7 Na3 b1Q Qe2 Qb2 Qe4 Nb5+ Kd5 Rc1 Qf7 Bf6 Ra1 Rg8 Qfe7 Rg7 Nf3 Rg1 Ba5 f1R Nc2 Kf2 Ra2 R1g6 Nce1 d6 Kc6 d5 Q7e5 d4 Q4f5 d3 Qg4 d2 Ng1 Qdd4 Bd8 d1B Qa5 Rb8 a8R Be6 Qa4 Bg8 Qa7 Qe2 Rd2 Rc8+ Qc7 Ba4 Nd3+ Ke3 Nc5 Kf2 Rd1 Qeb2 Rd3 Qe3 Rd7 Qed4 Rd5 Be7+ Kd7 Bh4+ Ke8 Bf6 Qe5 Rc6 Nf3 Qa1 Rc8 Qab2 Rg1 h1Q Rd6 Qh6 Rh1 Qhe3 Ng1 Qde4 Rd3 Q3d4 Rd2+
1b2r2r/4bK2/1pn1Rb1Q/B1BPQb1P/3b3B/2N1p3/n7/kR3qRb b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 e4 h5 c4 hxg4 cxd5 f5 exf5 b3 Bh3 Rxh3 a5 Rh8 Na3 Bd7 Nc4 Be6 Nb6 Bd7 Nc8 Bxc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 c5 d4 Kc3 f4 g5 h5 c4 d6 b2 f6 b1B a6 g3 a7 b6 f5 g2 d5 g4 d7 g3 Ke6 Be4 f7 Nf6 Nf3 g1B Ra5 g2 Bh6 Kb2 Rh2 c3 Qe2+ c2 Nd4 Nc6 Nb5 Bd4 Nc3 g1B Rb5+ Ka1 Rh1 c1B Bd2 Bh2 Rg1 Bh1 Qe5 Ne4 f6 Bf4 Be1 Bb2 Rb3 Rb8 Rb5 Qc7 a8R+ Qa7 Rb3 Qa6 Ra7 Bg3 Rb7 Qf1 Bd2 Bg7 f8B Ba3 Kf7 e6 d8B Be7 Rd7 Bf4 Rd6 Bg3 Qg5 e5 Rb5 Bf5 Re6 Nc5 Qf4 e4 Qe5 e3 Rb2 Nb3 Be1 Ba3 Bc5 Nc1 Bde7 Bf4 Bh4 Na2 Bb4 Na5 Bec5 Nc6 Ba5 Rbe8 Bd6 Rh7 Qe4 Bh3 Kg6 Rhh8 f7 Ncb4 f8Q Bgf6 Qh6 Nc6 Kf7 Bf5 Bf8 Bb8 Qe5 Bae7 Rb5 Bd8 Bc5 Bde7 Rb1+
1B2N2b/1b4R1/2n2bp1/Q2PrbRk/2Q1qP1r/1p1q3N/2qN3K/2Qb4 b - - 0 1 legal: proof: b4 b5 e4 d5 exd5 f5 a4 h5 c4 c5 g4 hxg4 Bg2 a6 Be4 fxe4 a5 Nd7 Qe2 cxb4 c5 b3 c6 Nb6 axb6 Ra7 c7 b4 Qd1 Bf5 c8R Ra8 Rc5 Bc8 Rb5 axb5 Kf1 Kf7 Kg2 Kg6 f4 e5 d4 b2 h4 g3 b7 e3 b8Q e4 d6 b3 d7 b4 Qc2 e2 Ra5 e1Q Be3 Bb7 Qe5 Qe2+ Bf2 Be7 Ra4 Ra5 Nc3 b1B Qf6+ Kh5 Qc6 e3 Qc1 b2 Nh3 g6 Rg1 b3 Ne4 Bf6 Q6c4 Re5 Ra7 Bc2 d5 b1B Nd2 Bd1 Kh1 g2+ Kh2 Qc8 d8Q Qd3 Qa5 e2 Bb6 e1B Bc7 Ne7 Bd6 Nc6 Bb8 Ba6 Rg7 Bb7 Ne4 Bc3 Nd2 Kg4 h5 Ba1 h6 Kh5 h7 Qcf5 Rf1 Qfe4 Rf2 Qc2 Kg3 g1Q+ Rg2 Qgd4 Kh2 Qdd3 Rg4 Rhe8 h8N Bb2 Nf7 Rh8 Rg3 Ree8 Rg2 Qe7 Qcc5 Bfd4 Re2 Qb5 Re3 Qcc4 Nd8 Bf5 Qcb4 Kh4 Re1 Qe4 Rg8 Qcc2 Ne6 Qbd3 Nc7 Kg4 Qc4 Rh4 Rf1 Kh5 Rg1 Bh8 Rg7 Bf6 Rg4 Re7 Ne8 Re5 Rg5+
1Q1K4/q5N1/PB1Q2r1/qp6/N4nqr/1kP3p1/1qRnRn1r/5QbN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 f3 Qb6 a3 Qc7 Bc4 Qd8 Ba2 b3 Kf2 bxa2 Kf1 Qb6 Ke1 Qd8 Nc3 e5 Bd2 b6 Bg5 e4 Nb1 Bb7 Bd2 e3 Bc1 Be4 fxe4 Ra6 Nc3 Ra4 Nb1 Ra8 Ke2 Ke7 Kd3 Kd6 Kc4 g5 Kb5 d3 h4 e2 f6 e1R a4 g3 a5 d2 h5 g4 h6 g2 a6 g3 f7 Nf6 h7 Nh5 e5+ Kd5 c3 Bc5 f8N Re2 e6 Nf4 e7 Nc6 e8Q Na5 Rh2 Nb3 Qf1 d1N Qe7 Nd2 Na3 Nf2 Rb1 a1Q Nh3 g1Q Ne6 d6 Rb4 Qb2 Ng7 Qc7 Nc4 Rag8 Na5 Be3 Nb7 Bd4 Nc5 Qa7 Nh5 Rg6 Na4 Qg2 Qd8 Qf3 Rb3 Qg4 Ng7 Be3 Kb4 b5 Ka5 Kc4 Qd7 d5 Qd6 Qa3 Rb2 d4 Rc2 d3 Rg2 Qa2 Ba3 Qb2 Bc5 Kb3 Bb6 Nde4 Rh2 d2 Rg2 d1Q Rh2 Rc8 h8Q Rc4 Qhb8 Nd2 Rg2 Qda1 Rh2 Nfe4 Nf2 Qaa3 Nh1 Bg1 Rh5 Rh2 Re5 Nf2 Re2 Qb7 Be3 Qa8 Kb6 Rd4 Kc7 Qa7+ Kd8 Re4 Nb6 Qa5 Bd4 Re5 Be3 Reh5 Bc5 R5h4 Be3 Qb4 Na4 Qa5+ Bb6
3qb3/nP2k3/1R2r2Q/1rbP2b1/8/p1K1N2Q/B1Np1q2/BBNrrq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d3 e5 d4 exf4 c4 cxd4 Qd3 Na6 Qd2 Nb4 Qd1 Nd5 cxd5 d6 b4 Ba6 Ra2 Bb7 Rc2 Bc8 Rc5 dxc5 Kd2 h5 e4 a5 g4 f5 g5 d3 e5 c4 g6 c3+ Ke1 f3 b6 a4 g7 c2 Kd2 f4 b7 f2 b8N a3 b5 f3 b6 h3 b7 h2 e6 h4 e7 h3 Nc3 Bd7 Qe2 Ra5 Na6 Rh6 Qe3 Re6 Nd1 Rb5 Bb2 c1B+ Kc3 Bc6 Qh6 Bg5 Ne2 d2 Rg1 h1R Nc1 h2 Bc4 f1Q Nb4 f2 Ba2 Kd7 e8B+ Ke7 Bh5 Be8 Ne3 Qg2 Ba1 f1Q Nbc2 Qgf2 Rg3 Rg1 Bf3 h1R Be2 Rh4 Bd3 Rhe4 Ng2 Re1 Nge3 Kf7 Qh3 Ne7 g8Q+ Kf6 Bh7 Nc8 Qg6+ Ke7 Qgh6 Na7 Rg2 Kd7 Rg4 Bc5 Rb4 Ke7 Bd3 Rd1 Bh7 Q1g2 Bd3 Rge1 Rb1 Qgf1 Bf5 Ra5 Rb6 Rb5 Nb4 Qf3 Bfb1 Q3f2 Nbc2
B5k1/8/p3PPQ1/4qqqb/n1B1Q1q1/2N1r1R1/RRrprr2/bK2Q3 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 cxd4 a4 g5 axb5 gxh4 b6 a6 b7 Bg7 b5 Bh6 b6 Bf8 Bh6 e5 Bg7 e4 Bh6 Nc6 Bd2 Na7 bxa7 e3 Qc1 exd2+ Kd1 f5 e4 Bb4 Ke2 Be7 Qd1 Bf8 e5 Qf6 Nc3 Qd8 Ne4 fxe4 b8R Kf7 c4 d5 g4 h5 f4 d3+ Ke3 h3 c5 h4 c6 d4+ Kf2 h2 f5 e3+ Kf3 h3 Ke4 e2 g5 e1Q+ Be2 Ne7 c7 Kg8 g6 Nd5 g7 Nc3+ Kf3 Na4 Ke4 Qg5 Qc1 d1Q Rb3 d2 Qb1 d3 Rb8 Qc2 Rb2 d1Q Raa2 d2+ Kd4 Bb4 f6 Qcf5 Qe4 Bc3+ Kd3 Bd4 Bf1 Qdg4 Kc2 Bd7 c8Q+ Be8 Qc3 Bh5 e6 Rc8 a8B Qeg3 Bd3 Qge5 Kb1 Rh6 Qb3 Rc2 Ne2 Rg6 Rf1 h1R Rg1 Rh2 Rg3 Rf2 Bc4 h2 Nc3 h1R+ Qe1 Re2 Qb7 Rhh2 Qe4 Rhf2 Nb5 Qg5f4 Re3 Qh3 Rb4 Ba1 Nc3 Rg3 Rbb2 Qhg4 Rf3 Kh7 g8Q+ Kh6 Qg5+ Kh7 Qh6+ Kg8 Rd3 Qf4g5 Re3 Rgf3 Rd3 Rf4 Rh3 R4f3 Rg3 Rfe3 Qg6+
qq4B1/5p2/qpbQq1R1/N1Bb4/P5k1/1P3rbq/1Q3Qp1/1R1KR2n b - - 0 1 legal: proof: g4 a5 f4 c5 d4 cxd4 a4 e5 b3 exf4 Nd2 h5 Nc4 hxg4 Nb2 Ra6 Nd3 Rc6 Nb4 axb4 a5 Rc4 Bb2 Na6 Bc1 Nc5 Ra2 Na4 Ra1 Rc3 bxa4 b3 Be3 b2 Bc1 Rb3 cxb3 Rh7 Qd2 Rh6 Qd1 Rh8 e4 Ke7 h4 Kf6 a6 b1Q a7 g5 a8Q d5 e5+ Kf5 h5 f3 e6 d3 h6 g3 h7 d4 e7 f2+ Kd2 g2 e8Q b6 Rh5 Bd6 Ra3 Nh6 Qb7 Be6 Qbc6 Qa8 Qe1 Kg4 Qcc8 Bg3 Qg8 Nf5 Qcf8 Bd5 Nf3 g1Q Qd8 Qh2 Ra2 Qh3 Bg2 f1Q Kd1 d2 Rb2 Qfa6 Rh6 Qe4 Rg6 Qe6 Qg7 Re8 h8R Qb8 Kc2 d1B+ Kd2 d3 Qd6 Be2 Nd4 Bef3 Qf2 Rc8 Qge5 Rc3 Nc6 Bfe4 Ke1 d2+ Kd1 Rf3 Na5 Bc6 Re8 Bed5 Rb1 Qaa8 Kc2 Qa6 Ba3 d1Q+ Kb2 Qdd3 Kc1 Qaa8 Qeb2 Qda6 Re7 Bh2 Bb4 Ng3 Bc5 Nh1 Kd1 Bf4 Bf1 Bg3 Bd3 Qf5 Re5 Kh5 Qfc2 g4 Re7 Bh4 Rg7 g3 Qf2 g2 Re1 Qe6 Bh7 Bg3 Rg6 Kh4 Bg8 Kh5 Rh6+ Kg4 Rg6+
N1n3K1/BP4Q1/qR2n1Qp/3qnQqR/1k1P3B/2qrp1n1/3p1b1B/8 b - - 0 1 legal: proof: d4 c5 a4 f5 e4 fxe4 a5 c4 a6 bxa6 Kd2 a5 Ke1 a4 g4 d5 Bd3 Kf7 Na3 cxd3 c4 Ke8 c5 Nh6 Nc4 dxc4 Qe2 Ng8 Qf3 Na6 Qd1 Nb8 f4 a5 f5 g5 f6 Bf5 gxf5 g4 h3 g3 Qc2 Nh6 Qb1 Rg8 Qc2 Rg4 hxg4 Ng8 Qd1 Bg7 Qc2 Qc7 Rh3 Nc6 Kd1 Kd7 Be3 Nh6 Qb3 Rh8 Bf4 Ke8 Rh1 Qd8 Ke1 Ng8 Bc1 Bf8 Qd1 Nb8 Kd2 Kd7 Kc3 Kc6 b4 Kb5 g5 e5 f7 d2 c6 a3 c7 e3 c8Q a2 g6 g2 g7 a4 f6 e2 Qb3 e1N Rb1 e4 Qc2 a3 Ne2 g1Q Rh5+ Qd5 Nf4 Na6 Qf5 Nf3 Ne6 Bd6 f8B Nc7 f7 Ne5 Be7 Qg5 f8B a1Q+ Rb2 h6 Bd8 Ne7 g8Q e3 Qg7 a2 Qb1 Ka4 b5 Rg8 b6 Nc8 b7 Be7 Qbd3 Bf6 Bd6 Rh8 Nf8 Ne6 Nd7 Re8 Nb6+ Ka5 Kc2 c3 Na8+ Ka4 Rb6 Rf8 Kd1 c2+ Ke2 Qc3 Bca3 a1Q Bac5 Rf7 Qfg6 Rc7 Qdf5 Rc6 Bb8 Be7 Ba7 Qaa3 Bd6 c1N+ Kf1 Ne2 B6c7 Nf3 Bh2 Ng3+ Kg2 Ne5+ Kh3 Bd6 Ra6+ Kb4 Bf6 Qcc4 Rb6+ Qcb5 Be7 Rc3 Bd8 Rd3 Bf6 Qf4 Bd8 Qf1+ Kh4 Qc3 Be7 Qfa1 Bg5 Qa6 Bd8 Nc4 Kg4 Bc7 Bh4 Ne5+ Kh3 Nf1 Rg5 Nf3 Qff6 Qdc5 Kg4 Bg3 Rh5 Bf2 Qe5 Q5c4 Kf5 Ng3+ Kf6 Qc5 Qee4 Qg5+ Kf7 Ne5+ Kg8 Qf4 Qef5 Qg5 Rd6 Qd5 Rb6+
1Q1k1r1B/N4QNB/qb1B2p1/2P2P2/1Rr1Nb2/3p1qq1/pK4pq/5n2 b - - 0 1 legal: proof: e4 b5 a4 bxa4 d4 c5 b3 cxd4 e5 a5 e6 a3 Ke2 a4 Qe1 a2 Be3 a3 Bf4 Ba6+ Kd2 Bb5 Qd1 Ba4 Ke1 fxe6 Be3 e5 Bc1 e4 bxa4 h5 f4 Nh6 g4 Ra6 f5 Rg6 Nd2 Ra6 Rb1 Nc6 Rb3 Ng8 Rg3 Ra8 g5 Ne5 Rg2 Ng4 Rg3 N4f6 Rg4 hxg4 gxf6 Ra5 Ne2 Ra6 Ng1 Ra8 c4 a1Q h4 e5 c5 d5 h5 d3 a5 g3 h6 g2 a6 d4 a7 g6 h7 e3 Be2 e4 Qc2 Bh6 Kd1 Bf4 Nb3 d2 Nh3 Ne7 Qc4 Nd5 Kc2 Qd6 f7+ Kd8 Na5 Rf8 h8B a2 Nf2 Qa6 Bf1 e2 Rh4 e3 Ne4 e1B Bd3 Rb8 a8Q e2 Qa7 Rb4 Nc6+ Kc8 Qb5 Rc4+ Kb3 d1Q+ Bc2 Bg5 Bf4 d3 Bd6 Qe5 Rg4 Qh2 Kb2 Bd8 Bb3 Bg3 Qab8+ Kd7 Q5b7+ Bc7 Rh4 e1Q Na7 Ne3 Qd5 Nf1 Qdb7 Rc8 f8N+ Kd8 Qd5 Qf3 Qf7 Bb6 Rf4 Bh4 Rg4 Be7 Rh4 Qeg3 Ne6+ Kd7 Ng7 Kd8 Nd2 Bg5 Re4 Rc1 Rb4 Bf4 Ne4 Rc3 Qfb7 Rc1 Bg8 Rc4 Qd5 Kd7 Bh7 Rf8 Qbb7+ Kd8 Qdf7 Bc7 Qb5 Ba5 Qbb7 Bb6 Qb8+
2b1n2q/1nRn4/nnn3NQ/PbqP1R2/2q1B3/1Q5B/1r1b3k/KQB2r2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Nc3 exf6 Ne4 f5 Ng3 f4 Ba3 fxg3 Bb2 Ra4 Bc1 Ra8 e4 Ke7 a4 Kd6 h4 Ke5 d6 Kf4 h5 f5 d7 c5 a5 b5 e5 g5 h6 g4 e6 c4 e7 c3 e8B b3 h7 b2 Bc4 b1B Bb3 b4 Ra4 c2 Ra1 Na6 Ba4 b3 Rh4 b2 Bb3 Rb8 Bbf7 Bh6 Be6 Nf6 Nf3 g1N B6f7 g2 d4+ Kg3 d5 f4 Kd2 Rf8 Kc3 Ne2+ Kd2 g1N h8Q Nd4 Kc3 Nc6 Ng5 f3 Qe1+ f2 Qf1 Nf3 Qd3 f1Q Qg6 Nfe5 Qh5 Qc4+ Kd2 Ba2 Qg6 b1N+ Ke1 Na3 Kd2 Rb2 Rh5 Kg2 Qf5 g3 Be6 Bb3 Qg6 Ba4 Bh3+ Kh2 Qe4 g2 Bg6 Qe8 d8Q g1Q Qb6 Ned7 Qb3 Qgc5 Qe1 Qe5 Be4 Ne8 Rb1 Rf4 Nf7 Bb5 Rf5 Bg5 Qh6 Qh8 Ne5 Rf1+ Qee3 Qa4 Ra1 Nc4+ Kc3 Bf4 Qe1 Be3 Bd2 c1N Qed1 Nd3 Qb1 Bg5 Bc1 Ncb6+ Qc4 Qf2 Qb3 N3c5 Ra3 Nb7 Ra2 Re2 Rc2 Qc4+ Kb2 Qfc5 Ka1 Ref2 Rc3 Rb2 Ng6 Bd2 Rf7 Ndf6 Rc7 Nfd7 Rf3 Ncb4 Rf8 Nc6 Rf5
Bq3Nn1/3KPq2/QP1n1Q2/R3b1rR/2rQ4/B4rq1/q1br2r1/qk1B4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 Ke4 h4 f5 c3 d5+ Kb3 g5 Ka4 a5 e3 f4 c4 g4 h5 f3 h6 d3 c5 f2 b6 d4 Kb5 a4 b7 d2 h7 a3 c6 d3 c7 a2 Rb1 a1Q Bb2 Qa2 Ne2 g1R Rc1 g2 Bd4 g3 Rc2 Bg7 Qc1 d1R Nf4 d2 Ne6 Na6 Kc6 Be5 b8Q Nc5 b5 Nb7 b6 Ra4 Qa1 Rc4+ Bc5 Nd6 Nf8 Bf5 Qa8 Qb8 Be2 f1Q c8B Bg6 Beg4 Kd3 e4 Qf7 Qa6 Rgf1 Rc1 g1R Rh5 g2 Bb7 Rf3 Ba8 Bf5 Rb1 Kc2 Qd4 Bg6 Rb3 Kc1 Rc3+ Kb1 Re3 Bh2 e5 Bc2 e6 Be5 e7 Rg3 Bh3 Rg5 Be6 Rdf1 Bd5 d1Q Ra3 Rf3 Ra5 Qe1 Be6 Qg3 Kd7 Rd1 Bh3 g1Q Ba3 Rd2 Bg2 Qc1 Bf1 Qcb2 Be2 Qba1 Bd1 Nh6 Rh3 Rhg8 h8Q R8g6 Qf6 Ng8 Qg1 Rh6 Rh1 Rhh2 Qd4 Rhg2 Rh5
B2r1n1K/Bnr5/5r2/4NnnQ/1qN2R1b/P1kPbrQ1/qQ1n4/2Bq4 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 a3 f4 Ra2 Bf5 gxf5 h5 Rb2 Qf6 Rb3 Qg5 Rd3 Qd8 Rd6 Na6 Rg6 Nb8 Rg4 hxg4 Kf2 Ke7 h4 Kf6 e4 Ke5 h5 Kd4 f6 g5 h6 c5 h7 b5 e5 g3+ Ke1 c3 f7 g4 e6 c2 e7 g2 Kf2 g3+ Ke1 c4 e8Q b3 Qe7 c3 Rh5 b2 Qee2 b4 Rh2 b3 Rh3 Nd7 Qe6 f2+ Ke2 Ra6 Kf3 Nh6 Qf5 Rf6 Qg4 Be7 f8Q Nf5 Ba6 f1N Qe8 Nf8 Be2 Qb6 d3 Qb4 Qg7 Nd2+ Kg4 f3 Kg5 f2 Qef7 f1R Kh5 Rf3 Rh1 Rg8 Nh3 g1N h8B g2 Ng5 Nh3 Nh7 g1B Qg3 Be3 Rf1 Ng5 Qe8 Nde4 Nd2 b1Q Nc4 b2 Qde1 Qa2 Rf2 Nf7 Ng5 N7d6 Nf7 b1N Nfe5 Nbd2 Bf1 Ng5 Bg2 Nb7 Qb5 Qa5 Qb1 Qb4 Qd1 Rf7 Bf6 Bd8 Be7 Rf6 Bd6 Be7 Bb8 Bd8 Bb2 c1Q Ba7+ Bb6 Qh1 Qd1 Bc1 c2 Rf1 Kc3 Qhh4 Ng6 Rf2 Bd8 Qhh2 Nd4 Kh6 Be7 Qh1 Rd8 Kg7 Nf8 Qh5 Nf5+ Kh8 Rf4 Nc6 Rfd6 Bc5 Nge4 N4e5 Bh4 Bf1 Rf6 Na5 Nbd6 Bg2 Ng5 Ba8 Nb7 Rf1 Rf2 Ba7 Rf4 Nac4 Rf2 Bb2+ Kb3 Nd6 Rf4 Rf2 c1R Rf3 Rc6 Bc1+ Kc3 Ndc4 Rc7 Qe1 Rg4 Rf4 Rg3 Qf2 Rf3 Qg1 Qf1 Qg3 Qd1 Qb2+
4nk1N/qbbbR1Br/q6r/NbR3NQ/2r1P2n/1P6/1KQ2b2/3rnQ2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 d5 e4 a5 h4 f5 c4 g5 Kc2 f4 b3 a4 c5 g4 h5 d3+ Kb2 d2 b6 d4 h6 a3+ Ka2 f3 b7 d3 h7 f2 c6 f1B c7 Na6 b8Q Nc5 Ne2 g1R Qb6 g2 Qc2 d1R Qb2 d2 Qd6 g3 Rh5 Ra4 Qd5 Qd6 Qb7 Rc4 Qb8 Rh1 Qf6 g1B Qh4 g2 Qb4 Bb7 c8N Nd3 Ne7 Bf2 Nd4 g1N Ndc6 Ne1 Bb2 Ngf3 Na5 Qa6 Qh2 Nf6 Ng6 Nh4 Rc5 Bd6 Qb5+ Kf7 Bd4 Ne8 Bg7 Bc7 Qg2 Be2 Qc6 Bg4 Qg1 Bd7 Qf1 Rf8 h8Q Qa7 Qh5 Rh8 Bb2 Rh6 Nh8+ Kf8 Bc3 Rc1 Bd4 d1B Nd2 Be2 Nf3 Rd1 Ng5 Bd3 Rc1 Qa6 Ka1 a2 Kb2 Rh3 Rc2 Be2 Re5 Rh1 Re7 Bd3 Ka3 a1Q+ Ra2 Rc5 Qe6 Rh7 Qhg4 Qb5 Qc6 Rh3 Nc4 Nhg2 Bf6 Qd4 Na5 Qa6 Rc2 R3h6 Qh5 Nh4 Rc1 Rc3 Kb2 Bb5 Qcc4 Qda7 Qce2 Rg3 Rc5 Rc3 Qc2 Rc4 Bg7+
1q1N4/1q1b3N/1rQ2b1N/5P2/bnnPRQ2/1B4B1/nkr1QnK1/r1n1r3 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 d5 e4 dxc4 b5 f5 Ra3 fxe4 Rb3 b6 Rb4 axb4 a5 Na6 axb6 Nb8 d4 Kf7 g4 Ke6 f4 Kd5 Kf2 c5 g5 e5 f5 h5 g6 c3 g7 h3 b7 h2 b6 b3 Bd2 c2 Bc1 h4 Na3 c4 Bg2 c3 Qe2 h3 Qd3 b2 Ne2 b1Q Nb5 Ra1 Bf1 e3+ Kg3 e4 Ng1 e2 Bb2 c1N Qd2 Kc4 Qc2 e3 Na7 Nh6 g8N Na6 b8Q Nf7 b7 Rh6 Qe4 Kb3 Qh4 e1R Nb5 e2 Qg4 c2 Nf6 Be7 Na7 Na2 Ba3 c1N Nh7 Ne5 Qc7 Rb6 b8Q Bf6 Nf3 N6b4 Nfg5 Bd7 Nc6 Nc4 Nf7 Qc8 Qh5 Qb7 Nh6 Kc3 Rg1 h1B Nd8 h2 Qc6 Bg2 Qf4 h1N+ Kh2 Nf2 Qe8 Be4 Rg4 Bc2 Kg2 Ba4 Qe7 Rd1 Qe6 e1R Qe2 Rd2 Rh4 Nc2 Bd6 Kb2 Bc7 Qb8 Qg3 Rb3 Qh5 Na5 Qd1 Ka3 Bd3 Nc4 Qe2 Rb5 Rg4 Qb4 Qge5 Kb2 Re4 Rb7 Qed6 Qb6 Qg3 Ncb4 Bc2 Q6a7 Bd1 Rb6 Bb3 Qab7 Qge3 Rc2 Bg3 Na5 Qg5 Nc4 Qf4
q4NR1/n6r/3Pn1Q1/R1Q2nrn/2QR2P1/4qk2/1r1n2rb/Kb1bB2B b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 d4 Kd7 Kd2 Ke6 Kc2 Kf5 Kb1 Kg4 e4+ f3 b7 h5 b6 f5 e5 c5 g3 f4 d5 b3 e6 b2 e7 h3 e8R h2 Re4 h4 Rd4 c3 Qe1 f2 Re4 c4 Re5 f3 Rf5 h3 Ra7 c2+ Ka2 b1B+ Kb2 c3+ Ka1 Nh6 Bb5 f1N Rh5 f2 Ba6 Rg8 Qe7 Nd2 Qf7 f1N Qc7 Bd6 Qd7+ Nf5 Qc6 Rg5 Ne2 Kf3 Ba3 c1N Rh7 c2 Rg1 h1R Qc5 h2 Rd7 Nd3 Nf4 c1Q Ne6 Nf4 Nf8 Ne6 Bb4 Nc6 b8Q Qe1 b7 Qe3 Qc7 Rb8 Rg2 Rg1 Bc4 h1R Ra5 Rh7 Bc3 Ne4 Be1 Ned2 Bb5 Na7 Bc6 Qe8 Rd8 Bd7 g4 Bh2 d6+ Kf4 Re2 N1g3 Bh1 Rg2 Qc4+ Kf3 Q7c5 Nh5 Rc8 Nf1 Rd2 Ba4 Rd4 Nd2 Rd8 Bd1 Rc8 Ra8 b8Q Qd8 Qbb3 Rb8 Qbd3 Rb2 Ra8 Nh4 Qg6 Nf5 Rb8 Qe8 Rb7 Qb8 Rg7 Qa8 Rg8
3Qr1B1/P3r3/1bB1nQ1P/1b2KBN1/1RR1b2b/q3qk2/b1R1nr2/2r2q2 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 g3 Nc3 exf6 Nb1 f5 Qb3 f4 Qa4+ Nc6 Qd1 Nb8 Bb2 h5 Bd4 Qd6 Bf2 Qd7 Qa4 gxf2+ Kd1 Ne7 g4 Ng8 Kc1 Nc6 Qc2 Nb8 Qd1 Qd8 g5 Qf6 Na3 Qf5 Nc4 Qd7 Ne5 Qd8 Ng4 hxg4 Kb2 Kd7 h4 Kd6 a4 Ke5 e4 c5 a5 b5 d3 f5 d6 f3 h5 Kf4 d4 b3 Kc3 c4 a6 b4+ Kb2 g3 e5 g2 a7 c3+ Kb1 c2+ Kb2 c1R d7 Nh6 e6 Qb6 d8Q Nc6 d5 Bd7 e7 Nd4 e8B Nf7 g6 Ng5 h6 Be7 d6 Bb5 g7 Nge6 g8B Bh4 d7 Ne2 Rb1 Qe3 Qc8 Rh7 d8R Re7 Ka1 b2+ Ka2 b3+ Ka3 Kg3 Kb4 f4 Ra1 b1B Nh3 g1B Ra5 b2 Qd4 Ba2 Bc6 b1B Ra4 Be4 Ng5 Kg4 Bg2 f1Q Rh2 f2 Qf6 f3 Bh3+ Kg3 Bf5 Qh3 Qd7 f1Q Rb8 f2 Rb6 Rae8 Qd8 Qd1 Rb7 f1R Rb8 Rf4 Rc8 Qdf1 Rc7 N2d4 Rc2 Ne2 Rb7 Rf2 Rb8 N6d4 Kc5 Ne6+ Kd6 Kf4 Rb7 Qa3+ Rb4 Qhe3 Rc7 Kg3 Ke5 Kg2 Nh7 Kf3 Ng5+ Kg3 Bg6 Qeb3 Kd6 Rf5 Bb7 Bb6 R7c4 Qe3 Bc6 Rf2 Ke5 Kg4 Bf5+ Kg3 Nh7 Kf3 Ng5+
1Q1r2q1/QB2B2b/qP1q3k/2b2rRq/bQ3n1r/2N1R1Kn/2P5/1n1R3r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 b4 a5 e4 g5 h4 f5 b6 Kf7 b5 Kg7 b7 d5 b6 g4 e5 a4 h5 a3 e6 d3 e7 d4 e8R d2+ Ke2 d3+ Ke3 f4+ Ke4 f3 Kf4 a2 Bb2+ Kh6 Rc1 a1Q Rh3 f2 Be2 f1B Re7 Ra5 Rg7 Ne7 Rh4 Nbc6 b8Q Nd5+ Ke4 Nd4 Rh3 Ne6 Rh1 Nef4 Qa7 Bd7 Rb1 Bc5 Qe1 d1R Rg8 d2 Rh4 Nc3+ Ke5 Ba4 Rg5 Qd6+ Kf5 Qa3 Ba6 Bd3+ Qe4 Rd8 Ne2 g1R Qe7 g2 Bb7 g3 Kg4 Rh1 Rc1 g1Q Qb4 g2 Kg3 Bh7 Rh3 Nb1+ Nc3 Re1 Rd1 Re4 Qc7 Qa2 Qb8 Qg8 Bc1 Qf1 Ba3 g1N Qa7 Qfc4 Kg4 Qa6 Re3 Ngh3 Kg3 Bg6 Rf1 d1Q Rfe1 Kh7 h6 Qh5 Rd1 Bd4 Rc1 Rf5 Rf1 Bc5 Rd1 Kh8 h7 Kg7 Rd4 Kh6 h8Q+ Bh7 Rd1 Nd3+ Qe5 Ref4 Qh8 Rh4+ Qe5 Ndf4 Qe8 Rd7 Qeb8 Rd8 Rd4 Qe5 Rd1 Bd4 Qc4 Qf6 Be7 Bc5 Qb5 Qd6 Qb4
r3B1kB/1BqPbR2/2rR4/1q1Q3K/1n1nQ1n1/1P1qb2n/R1q3Nr/7b b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Ne4 g2 Ng3 hxg3 Qa4 Qf6 Qd1 Qd8 e4 f5 Ke2 Kf7 Kf3 g5 h4 c5 d4 a5 d5 a4 b3 g4+ Kf4 c3 b6 c2 e5 a3 d6 c4 b7 c3 h5 a2 h6 Nc6 b8Q Be7 d7 Qc7 h7 Nb4 Rh4 Nf6 Kg5 f4 Rb1 a1N Bd3 f3 Qf1 f2 Bb5 Bb7 Bb2 c1R Qe2 f1Q Qe4 c2 Rh6 Qd3 Nf3 g1N Qd4 g2 Qe4 g3 Ne1 Ng4+ Kh5 Nh3 Rd6 g1Q Bc6 Qgb6 Ng2 Qbb5 Bc3 Kg7 Rb2 Kf7 Ra2 Kg7 Nf4 g2 Qc8 g1B Ng2 Bf2 Qd5 Be3 Qe8 Rb1 Bb2 c1Q e6+ Qcc3 Qg6+ Kf8 Qe4 Nac2 Ba1 Nd4 Bb2 Qcc2 Bc3 Rg8 h8R Rh1 Rh7 Rg6 Rf7+ Kg8 Bb2 Rh2 Ba1 Bf6 e7 Bh4 e8B Be7 Qdf5 Ne2 Bh8 Nd4 Qf4 Re6 Bf3 Rf6 Qd5 Re6 Qe4 Rf6 Rda6 Rc6 Qdf5 Bf2 Nf4 Rb6 Qe3 Re6 Bh1 Re5 Rd6 Rc5 Qe6 Bd5 Qfe5 Be3 Bg2 Bc4 Bb7 Bd5 Q5f5 Bf3 Qed5 Rc6 Qfe4 Bh1 Ng2
n1N3k1/Bn3Q2/q2RQn2/7b/b1rb3Q/1nPrb1n1/nKP4N/N3r2B b - - 0 1 illegal: No possible last move, all moves rejected
n1Q1nK2/1b4Rr/Nb4r1/Pn1b3R/n1P2N2/5b2/B1Qknq2/2r1R1rQ b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Nb1 f5 exf5 g5 Qg4 Bg7 Qd1 Bf8 f4 h6 g4 Kf7 Be3 Ke8 Bf2 Ra7 Bh4 gxf4 g5 Ra6 g6 Ra8 Bg5 hxg5 Kf2 e5 Kf3 Ke7 Kg4 Kf6 c4 d5 a4 b5 h4 d3 a5 d2 h5 b3 g7 b4 h6 d4 Kh5 f3 h7 g4 Ra3 g3 Qe1 d1B Rh4 g2 Ra2 b2 Bd3 b3 Be4 d3 Rh1 f2+ Qe2 f1B Nf3 g1R Nh4 d2 Bb7 e4 Na3 Ke5 f6 Kd4 f7 Kc3 Nf3 b1N Qe1 b2 Qh4 e3 Bc6 e2 Be4 e1R Qf4 Bc5 f8R Bb7 Bc2 Bg2 Kg6 Na6 Kf7 Bb6 Qg5 Qd4 Bg6 Nf6 g8Q Qf2 Nc2 Na3 Nb4 b1N Nh4 Bdf3 Re8 d1N Qf5 Nb2 Kf8 Nc7 Na6 Na4 Qc8 Rd1 Re1 Nab5 Rae2 Nfe8 Re7 Rb8 Rg7 Na8 Qf5 Rc1 Qc2+ Kd4 Be4 N1c3 Ng6 Ne2 Rh5 Ke3 Nf4 Bd5 Qb3+ Kd2 Bb1 Rc8 Ba2 Rc6 Qc2+ Ke3 Ke7 Rg6 Qf8 Bb7 Qff5 Bfd5 Qh3+ Bgf3 Qh1 Rg8 h8Q Rh6 Rgg5 Rgg6 Kf8 Rh7 Qg8 Re6 Rg7 Reg6 Qf5 Kd2 Qge6 Ng3 Qc8 Ne2 Qc2+
kqQR1Q1r/2b1n1K1/2r5/1rNNPqn1/n2qbR2/3B2Q1/P7/1nR3rq b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Bb2 exf5 Bf6 f4 Bh4 Qd7 Bf2 Qd8 Bg3 fxg3 e4 Kd7 Ke2 g5 Kd3 f5 Kd4 b5 Ke5 c5 h4 Kc7 d4 Kb7 d6 f4 h5 c4 d5 g2 h6 b3 d7 b4 d6 c3 h7 f3 Rh6 f2 Re6 c2 Na3 c1R Qc2 g3 Be2 f1Q Qd1 g4 Qe1 b2 Rb1 b3 Rh6 Ra5+ Bb5 Qf5+ Kd4 Ne7 e5 Rc6 Nc4 Na6 Nb6 Nc5 Qd2 Na4 Nf3 g1R Ne1 g2 Bd3 g3 Qg5 Rb5 Nd5 Ka8 Rf6 Bb7 Rc1 Qb8 d8Q b1Q d7 b2 Qc8 Qa1 d8R b1N+ Ke3 Qb2 Qf4 Qd4+ Kf3 Ng6 Rf7 Bd6 Rff8 Ne7 Rf6 Rg8 h8Q Bc7 Qg7 Rh8 Qf8 Rgh1 Rf7 g1Q Rf6 g2 Rf7 Qfe4+ Kg4 Qf1 Kg5 g1N Qg3 Qh7 Qe6 Nf3+ Kf6 Qf5+ Kg7 Rg1 Qc8 Ng5 Rf6 Qfe4 Rf4 Qh1 Bg6 Qfh3 Nd3 Qf5 Nc5 Rd6 Nc3 Be4 Nd5 Rf6 Bh5 Rfb6 Be2 Rc6 Bd3
4Q1b1/Nn3qn1/1q2q1QK/3q1qNR/7P/2qR1n2/PbQ1q2R/r1nBk3 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 b5 Qd2 f5 Qd1 h6 Bg5 hxg5 Nb1 f4 Qd3 Ra6 Qd2 Rf6 Qd1 Rf5 gxf5 Bb7 Qc1 Ba6 Qd1 Bc8 Kf2 Ke7 c4 Kf6 e4 Ke5 f6 d5 f7 d3 c5 Kd4 e5 d2 h3 b3 e6 b4 c6 g4 c7 g5 e7 b2 e8Q b3 Bd3 g3+ Kf1 f2 Kg2 g4 Rh2 f1Q+ Kh1 f3 Qd7 Ke3 Nc3 b1Q Bh7 f2 Qd6 d4 Qc2 d1Q Qc6 b2 Qg2 d3 Qa8 d2 Qg2 Nh6 Bg8 Qdc1 Qa4 d1Q Qae4+ Kd2 Qb4 Qde2 Qd6+ Ke1 Nd1 Qbe4 Qe7 b1Q Ne3 Nc6 Nd1 Qc3 Qf6 Qdd5 Qe7 Qee6 Qd6 Bg7 f8R Na5 Rf5 Qb6 Rh5 Nf5 h4 Nb7 Bh7 Rf8 Qd7 Bh8 Qe8 Ng7 Bc2 Bd7 c8Q Bb5 Bh7 Bc4 Bc2 Rf7 Qe4 Qh3 Rb1 f1Q Rb3 Re7 Qg6 Qff7 Qe8 Qhf1 Qg2 Q1f5 Nh3 Rc7 Qe4 Rc5 Ng5 g2+ Kg1 Rb5+ Qd4 Rb4 Qc5 Rb5 Ra3 Rb1 Bb3 Ra1 Ba4 Qcb2 Nc3 Qbd2 Nb5 Qc3 Bd1 Bb3 Rh3 Bc4 Kh2 Bb3 Rg3 g1N+ Rg2 Nf3+ Kg3 Bc4 Rf2 Bb3 Na7 Bc4 Kg2 g3 Rb3 Qcd2 Rd3 Qc3 Qb4 Bb3 Qg4 Bc4 Kh3 g2 Kg3 g1N Rh2 Ne5 Qe4 Ngf3 Rd2 Bb3 Qb1 Nd3 Qc2 Nc1 Rd3 Bc4 Rd4 Q6e3 Rd3 Q7d7 Qgf7 Q5b5 Rd4 Qcb2 Nc8 Ne6 Qg6 Q2b4 Rd5 Bb2 Rd3 Ng7 Na7 Bg8 Ne6 Qff7 Kh3 Qc3 Kg4 Qbd5 Rh7 Nf5 Kh5 Qee5 Ng5 Qfe6 Qf6 Ng7+ Kg6 Qde7 Rh5 Q5f5+ Kh6 Q7f7 Qg6
2nr2n1/1QBk2r1/K1RNq3/b1N3Pr/NR1r2q1/nQ5n/1rP2r2/2Q1r3 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 g5 f5 a5 g3 axb4 f6 g4 Kf2 exf6 Ke1 f5 Qd3 f4 Qd2 Ra3 Qd1 Ra8 Bg2 b6 Bf3 gxf3 g4 Bb7 g5 Bd5 h3 Bb3 Be3 Be6 Bc1 Bg4 hxg4 Qf6 Ba3 Qe7 Bc1 Qd8 Kd2 d5 Kd3 h5 a4 f5 e4 f2 a5 f1R g6 h4 g5 f3 g7 b5 e5 b3 e6 f4 a6 h3 e7 b2 a7 b4 Qe1 h2 Qe6 b3 Qe3 f2 Qe4 f3 Ra6 Nd7 Ra3 Nb6 Be3 Qd7 Nd2 b1R Qg4 b2 Ra1 Rfe1 Ra6 f1R Nh3 f2 Qg3 Rd8 a8N Nc8 Qh4 Rh5 Rg6 Qe6 Rg1 Kd7 Nf4 h1R Qg3 R1h4 Qg2 Rg4 Nc4 Rgh4 Kd2 d3 Kc3 d4+ Kb4 d2 Kb5 d1N Nd6 d3 Ka6 d2 Nd3 Re4 Rh1 Rd4 Rh4 Rh1 Qd5 f1R Bf4 Nf2 Qf3 d1Q Nb6+ Kc7 e8Q Nh3 Qb5 Rf2 Qe3 Qdg4 Na4 Be7 Qb8+ Kd7 Qc1 Bf6 Bh2 Be5 Rh6 Bf4 Qb6 Bd2 Be5 Ba5 Qb3 Nge7 g8Q Rhh2 Qh8 Ng8 Qh7+ Rf7 Rf6 Rf2 Bf4 Rg7 Qe4 Ra1 Bh2 b1N Ndc5+ Kc7 Bf4 Na3 Rg6 Ra2 Qg2 Rdd7 Qgb7+ Kd8 Rh6 Rb2 Nd3 Qef5 Ne4 R4d5 Q3b4 Qe2 Rc6 Qe6 Qb3 Ke8 Bh2 Rd8 Bc7 Kd7 Nd6 Qd1 Rhc4 Rd4 Rb4 Qdg4 Ndc5+
K1bq3q/1BR1PP1Q/1b3q2/4nq2/kb1N3q/b7/q1NQrbQ1/2r3NR b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Nh3 f5 Ba3 f4 Bb2 h6 Bf6 Nc6 Bg5 Nce7 Ng1 Nf5 gxf5 hxg5 Kf2 Kd7 a4 Kc6 e4 b5 h4 g4 d4 g5 a5 b3 h5 g3+ Ke1 f2+ Ke2 c3 Kf3 g4+ Ke2 g2 Kd3 f3 e5 b4 Ke4 b2 h6 b3 e6 c2 h7 c1B a6 g3 a7 Nf6+ Ke5 Ng4+ Ke4 Bb4 e7 Ne5 Na3 b1Q+ Qd3 b2 f6 Qa2 f7 b1Q Rh5 Qbb2 Be2 f1Q Rh4 f2 Nc4 Kb5 d5 c5 d6 Ka4 Na3 c4 Kd5 c3+ Rc4 c2 d7 Re8 Nf3 g1B h8Q g2 Qhh7 Qe1 Qe3 f1Q Qd2 Bb6 Ng1 Qf6 Bf3 Qeh4 Rb1 Rb8 Be4 Rb7 a8Q+ Ra7 Ra1 Qbb1 Bf3 Bb2 Qb7 c1Q Nc2 Ba3 Qa8 Qf1 Qb7 Qab2 Rc7 Rg8 Be4 Q1f5 Qa8 Rg4 Bf3 Re4 Qb7 Qe8 d8N Re2 Ne6 Qeh8 Ned4 Qd1 Nh3 g1B Qa8 Bf2 Ng1 Ba6 Qag8 Qbb1 Qg2 Qa2+ Nb3 Qab1 Qd4 Bc8 Nh3 Kb5 Be4 Qb2 Rb1 Qd3 Rh1 Qa1 Ng1 Bb2 Bf3 Ra2 Be4 Ka4 Bf3 Ba3 Be4 Qdg3 Qd2 Qgg8 Nbd4 Qb2 Bf3 Ra1 Be4 Rc1 Bf3 Bd6 Be4 Qd8 Bf3 Nc4+ Kc6 Qa2 Be4 Bd7+ Kb7 Bdb4 Bf3 Bc8+ Ka8 Ne5 Bb7
1n1bn2k/r4bq1/3P4/1Pn3n1/1K2Q2B/1nrQ2R1/b2RpN2/Q1RB1r1q b - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 g5 c4 dxc4 Nc3 h6 Nd5 gxf4 g5 h5 Nf6+ Kf7 Ng4 hxg4 Ra6 Ke8 Ra5 Kd7 Ra1 Ke8 b4 Kf7 h4 Kg7 d4 c5 Kd2 a5 Kc3 e5 g6 a4 h5 e3 b6 e4 d5 g3 b5 a3 b7 a2 d6 f3 Nh3 f2 Qc2 e2 Rb1 a1N Ng5 e1Q+ Bd2 e3 Bd3 f1B Rh4 g2 Qd1 g1N Rh3 Nb3 Qc2 Nf3 Qb2 Qd7 Be2 Nf6 Ne4 Ne8 Qa2 Ng5 Qa5 Be7 Rd1 Ra7 Rf3 Rf8 h6+ Kh8 h7 Bd8 Rc1 Qg7+ Rf6 Be6 Qa1 Bf7 Bd1 e2 Nf2 Bg2 Qa3 Qf1 Be1 Qh1 Rc2 Be4 Rd2 Bb1 Qa1 Ba2 Qb1 Bc7 Qd3 Bb6 Ne4 Bd8 Bh4 Nd7 Nf2 Nb8 Kc2 c3 Rf5 c4 Rc5 Na6 Rc8 Nbc5 b8Q Qf6 Qb6 Nb8 Qc6 Qd4 Qce4 Qg7 Kc1 c2 Rc7 Qh6 Kb2 c1N Kc3 N1b3 Kb4 c3 Rc8 c2 Rc6 c1R Rc7 Kg7 Rc6 Kf6 g7 Rc3 g8R Qg6 h8Q+ Qg7 Qb1 Qg2 Qa1 Qh1 Qh5 Qh6 Qhg4 Qg7 Qef3+ Kg6 Qfg3 Kh7 Qd3+ Qg6 Rg7+ Kh8 Qge4 Qf6 Rg6 Qg7 Rc7 Nf3 Rg2 Ng5 Rg3 Bg8 Ng4 Rf1 Nf2 Bf7 Qec4 Nce6 Rd7 Rc1 Qce4 Rc6 Rc7 Rc1 Rcc2 Nec5 Rb2 Rc2 Rb1 Rc3 Rc1
q1B3R1/4bp1B/4Q3/4nbQ1/1N1bNb1k/1P3br1/rqQ2P1K/1N1qr2n b - - 0 1 legal: proof: Nf3 b5 Nc3 c5 Nb1 b4 Ng1 b3 axb3 c4 Ra4 d5 Ra2 c3 Ra1 cxb2 e4 dxe4 h4 g5 g4 h6 d3 Nc6 Bf4 Nb8 Bg3 Nc6 h5 Nb8 Bh4 Qd4 Ra5 gxh4 g5 Qb6 g6 Qd8 Rg5 hxg5 c4 a5 d4 e5 c5 Ke7 c6 Kf6 c7 a4 g7 a3 h6 h3 h7 g4 d5 Kg5 d6 g3 d7 a2 Qd6 a1B Bd3 g2 Qa3 h2 Qd6 e3 Nd2 b1Q+ Ke2 e4 Nh3+ Kh4 Qe5 g1Q Qd4 Qb2 Qb6 Nf6 g8Q Nc6 Qg7 Ra2 Qa6 Nh5 Qc4 Be7 Bb1 Ne5 Ng5 Rg8 h8Q Qf8 d8N Bf5 Nc6 Qa8 c8B Qgc1 Rg1 h1B Re1 Qd1+ Kf1 e2+ Kg1 Bf3 Qe6 e3 Qgh6 Rg7 Nb4 Rg6 Rf1 e1B Kh2 e2 Rg1 Rg7 Nge4 Rg3 Nf1 Bc3 Q8h7 e1R Nfd2 Bd4 Bd3 Be3 Nb1 Bd4 Qc1 Be3 Qg8 Bf4 Qcc4 Qbc1 Qc7 Bd4 Qc2 Qb2 Nf6 B5g4 Bh7 Bf5 Ne4 Rg5+ Ng3 Bfe3 Ne2 Ng3 Nec3 Nh1 Ne4 Rg7 Rg6 Bd2 Rf6 Rg3 Rg6 Bf4 Rg5 B5g4 Qgg6 Bh3 Qgf6 Bf5 Rg8+ Bg5 Qg6 Bf4 Qg5+
1qRbQ3/8/bnb1PkrB/B3q1N1/1P1rnp2/r4q2/QK3b2/Qn1R1B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 h4 a5 c4 d5 Kc2 f5 b4 g5 e4 g4 c5 f4 e5 d3+ Kb2 a4 e6 a3+ Ka2 d2 b6 d4 c6 d3 b7 Nf6 h5 Ne4 c7 Kf6 h6 Be7 h7 Nd7 b8Q Nb6 Rh5 Ba6 Qe1 d1B c8Q d2 Nf3 g1R Qc5 g2 Ne5 g3 Qb7 Qb8 Bd3 Bd8 Bb2 Ba4 Rd1 Bc6 Qa5 Ra7 Kb3 a2 Bd4 a1Q Qc8 Rg8 Qa2 Rg6 Bc5 Rd7 Rh3 Rd4 Nf3 Rh1 Bf8 g1Q Bh6 g2 Bf1 Qf2 Ng5 g1B Rc3 Rh3 Ka3 Qf3 h8B+ Ke7 Kb3 Bf2 Be5 Rg3 Bc7 Kf6 Qd7 Rh3 Qe8 Rg3 Rc1 d1N Rd3 Ndc3 Rdd1 Nb1+ Rc3 Na4 Ba5 Nb6 Kc2 Bcb5 Rc8 Bc6 Kc1 Qac3+ Qc2 Qc5 Kb2 Qce5 Qb3 Qg2 Qa2 Ra3 Qa1 Qf3 Qe2 Nc5 Qc4 Ne4 Qca2
N3r3/5bP1/5BQQ/1K2QRRn/p3bq2/b3PRBr/3rknq1/2qn3r b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Bh3 g5 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Nc6 Be6 Nb8 Bg4 hxg4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 f5 c3 d5+ Kb3 a5 Ka4 f2 c4 f1Q c5 d3 b6 d2 b5 Ke3 c6 f3 h5 d4 g6 f2 b7 d3 h6 f4 g7 g3 c7 f3 h7 g2 b6 Nh6 Ra3 Qh4+ Kb5 a4 Bb2 Qf4 Qb3 d1R Qf7 Nd7 b8B Rd2 b7 Qc1 Bf6 f1Q Bd8 f2 Rh5 Nf6 Rf5 Nhg4 Nf3 g1R Ne5 Rh1 Nd7 Qg2 Nb6 f1B Qg6 Nh5 Bf6 Be6 c8R Bf7 Rcc5 Nf2 Bd6 Rc8 b8Q Re8 Na8 Be7 Rcd5 Rh3 Rb3 Bf8 Bde5 Ba3 Bc7 Qh1 Rg5 Bg2 Rdf5 Be4 Bd6 Qg2 Bde5 Qfg4 Bg3 Qf4 Qe5 Rd1 Rb4 d2 Rd4 Rdh1 Rd8 Rhg8 h8Q d1N Qhh6 Rh8 Rd4 Rd8 Rb4 Rhe8 Rb3+ Kd2 Rd3+ Ke1 Rf3 Rd2 e3 Kf1 Qb2 Ke2 Qe5
Bb1n3q/R1rRn1P1/1q2Q1p1/1Qq1N1k1/n1RP4/2N2r2/1b1K2bq/3Q1r2 b - - 0 1 legal: proof: g4 d5 c4 dxc4 a4 b5 axb5 e5 g5 e4 g6 e3 Qc2 exf2+ Kd1 Qd7 b3 Qd3 Bb2 Qd8 Bf6 gxf6 g7 f5 Qd3 f4 Qg6 hxg6 e4 Ke7 d4 Kf6 h4 a5 b6 c5 h5 a4 h6 a3 h7 f3 b7 c3 e5+ Kg5 e6 f5 b4 a2 e7 c2+ Kc1 c4 e8Q f4 b5 Nc6 b8R Nge7 b6 Ra7 b7 Bh3 Nc3 Qb6 Nd1 Bg2 Rb1 a1B Rd8 Bb2+ Kd2 c1N b8Q c3+ Kc2 Na2 Rd7 Nd8 Ne2 Rc7 Kd3 c2 Nec3 c1Q Nb5 Nc3 Qc8 Na4 Nd6 Qcc5 Nc3 Rg8 Be2 f1Q h8Q f2 Ra1 f3 Nc4 Qg1 Kd2 f1Q Ne5 f2 Bf3 Qh2 Ba8 Qfb5 Rhb1 f1R Rc1 Q5a6 Qb8 Qc8 Qh3 Rh8 Qf3 Rh3 Qd1 Rg3 Qb7 Rgf3 Qc6 Qcb8 Qb5 Qc8 Rd5 Qch3 Rd7 Qh8 Ra3 Nd5 Qe6 Bd6 Nb1 Ne7 Rc4 Rb7 Ra1 Bb8 Nc3 Rc7 Nd5 Nc3 Ra7 Na4 Nc3
r1R2Qq1/BN2RPn1/2q5/1Q2nP2/b3n1k1/K3RN2/1pr1bb1Q/1r2b1q1 b - - 0 1 legal: proof: d4 f5 e4 g5 exf5 a5 b4 axb4 h4 gxh4 a3 c5 Bc4 cxd4 Ba2 b3 Be3 bxa2 Bg5 Qc7 Bc1 Qd8 Kd2 Kf7 c4 Kf6 Kc2 h5 Kb2 e5 f4 d5 g4 b5 a4 h3 a5 e4 a6 e3 a7 h4 c5 d3 c6 d2 c7 e2 Rh2 e1B Re2 h2 Na3 h1Q Re8 h3 Qc2 d1N+ Kb3 b4 Nb5 h2 Nf3 d4 Ka4 d3 Qb2+ Nc3+ Kb3 d2 Re7 d1B+ Qc2 Bd7 c8R Ne4 Nd6 Nh6 Nb5 Be2 Qc4 Qg1 Nd6 h1Q Qb5 Nc6 Be3 Ne5 Nb7 Bc6 Kb2 b3 Ka3 b2 Rd1 Qd5 Rd3 Qg8 Bc5 Rh7 Re3 Rf7 Bd4 Bg7 Bc5 Rf8 Bb6 Rd8 Bc5 Rd2 Bd4 Rc2 Bc5 Rb8 a8Q Qhg2 Qaa4 Ra8 Ba7 Bf8 Qd4 Q2h1 Qd2 a1R+ Kb4 Rb1 Ka3 Bd1 Qh2 Be2 Qb3 Ba4 Qb5 Bg7 Ree8 Kf7 f6 Kg6 f7 Nf5 g5 Bf8+ Re7 Ng7 Rc5 Kf5 g6 Bf2 Rc8 Kg4 f5 Nd6 Nd4 Qc6 Nf3 Ne4 Ka2 Ne8 Ka3 Bh6 g7 Bf4 Rb3 Bd2 Rc3 Bde1 Re3 Qh7 g8Q+ Ng7 Qd8 Qg8 Qf8
1q2N1r1/1p1r1r1q/2P1k3/2N2rrB/n6K/QnP1BQN1/brR1r3/1Q3b2 b - - 0 1 legal: proof: f4 c5 b4 cxb4 h4 g5 a4 gxh4 f5 a5 f6 exf6 Ra3 f5 Rg3 f4 Rg5 Bg7 c4 Bc3 Rb5 b3 Rb4 axb4 dxc3 Ra7 Bd2 Ra6 Bc1 Ra8 Kf2 Ke7 g4 d5 e4 h5 e5 f5 g5 h3 a5 b2 a6 f3 Kg3 b3 c5 d4 a7 d3 e6 f2 c6 f4+ Kh4 f3 g6 h2 g7 d2 Bb5 f1R Qc2 d1R Be2 f2 Qh7 Na6 Kh3 h4 Qd3 Nh6 g8Q Rh7 Bf4 Nc5 Bb8 Rf7 Qc2 Nf5 Qe4 Nd4 Na3 b1Q Bb5 b2 Qe1 Qh7 Qe3 b1R Qg6 Rb2 Bf4 Bd7 Kg4 h3 Ne2 Rfe1 Rf1 h1R Nc2 h2 Nb4 Rg1+ Qg3 h1R Nd3 Rg2 Be3 Rh5 Bc4 Rc8 a8Q Qf8 Qa2 Na4 Nc5 Rb8 Qgb1 Rhf5 Rh1 Qd8 Rh3 f1B Qa3 Qc7 Rh4 Rg8+ Kh3 Kf6 e7 Be6 e8N+ Ke7 Bd5 Qb8 Bf3 Ba2 Bh5 Nb3 Qf3 Rd7 Rg4 Rg1+ Kh4 Rg3 Rd4 R3g5 Ng3 Ree2 Rd3 Qh6 Rd2 Qh7 Nce4+ Ke6 Rc2 Kd5 Nc5+ Ke5 Na6 Ke6 Nc5+
B1K1n2Q/1R1Rbqr1/1q2nk2/2Qn3R/b2r1bP1/2p3Pb/1NQ1b1b1/1B6 b - - 0 1 legal: proof: c4 d5 d4 dxc4 e4 f5 b4 g5 d5 g4 Be3 g3 Nd2 e5 hxg3 a5 g4 axb4 Bd4 exd4 e5 Nf6 Ne4 fxe4 Qc1 Ng8 Qc2 Bf5 Qd1 Bc8 Ke2 Kf7 a4 c5 f3 h5 a5 b5 e6+ Kf6 a6 b3 d6 c3 a7 e3 Kd3 b2 Ke4 b1N Kd5 h4 e7 b4 e8Q d3 d7 d2 Rh2 e2 Ra4 e1Q Qe4 c2 Qe3 c1B Bd3 h3 Ra6+ Nc6 Bc2 b3 Ne2 b2 Qe4 c4 Ng3 Qf2 Rb6 Rh7 Rb7 Rg7 Qe8 Nd4 Bf5 Be7 Qc2 d1B Nf1 Bf4 Ne3 Ne6 Kc6 Be2 Nd1 Nc3 Bd3 b1B Nb2 Rb8 a8B Nd5 Qh5 c3 Qh8 Qf8 d8R Qf7 Rdd7 Ba2 Rh1 h2 Bh7 Bb3 Bg6 Bf1 g3 Bh3 Bh7 Bc4 Bf5 Be2 Be4 Nh6 Bg6 Nf5 Bh7 Nd6 Bf5 Bh6 f4 Ne8 Bd3 Qg1 f5 Bf4 Be4 Ke5 f6 Qa7 Ra1 h1B Ra5 B1g2 Bf5 Qh5 f7 Kf6 f8Q+ Qf7 Rb3 Bca6 Rbb7 Rd8 Rc5 Bac4 Be4 Bb3 Ra5 Nb6 Rh5 Nd5 Bh7 Ba3 Qc5 Ba4+ Rb5 Qa5 Kb7 Bb4 Qc6 Be7 Qc5 Rc8 Rb3 Rc6 Be4 Rd6 Kc8 Qa7 Rbb7 Qb6 Rdc7 Nb4 Rd7 Rd4 Qd1 Nd5 Bb1 Bg5 Qc1 Bf4 Qc2
1b3bn1/R2rQb1n/2rNN1np/4N3/4B2B/Br3r2/1QP3rP/4qkbK b - - 0 1 legal: proof: e4 b5 Ke2 d5 f4 dxe4 a4 g5 b4 gxf4 Nc3 f3+ Ke3 c5 axb5 cxb4 Nb1 f2 Ra6 Qd7 Rf6 Qd8 Rf3 exf3 g4 Kd7 d4 Ke6 b6 Kd5 g5 a5 b7 f5 g6 e5 g7 h6 Bd3 f1N+ Kf2 a4 Be2 Ke4 d5 f4 d6 b3 d7 b2 Nh3 a3 Kg1 f2+ Kg2 a2 Bc4 a1B Ba6 Nc6 b8Q Qe7 d8B Ra7 Qb5 Rd7 Qb3 Nd2 Rg1 f1R Qd5+ Ke3 Bb5 f3+ Kh1 f2 Bd3 e4 Ba5 Ne5 Be2 Ng6 Na3 b1R Kg2 Rb3 Qb5 Be5 Qe1 Bb8 Bb2 Nf3 Kh1 Ng5 Bf6 Nh7 Bb4 Ba6 Qb7 Bc4 Nf4 Bf7 Bd3+ Kf3 Qb5 e3 Nc4 e2 Ba3 Qe6 Qeb4 e1B Bh4 Bd2 Qb6 Qe1 Nd6 Be3 Ne6 Bc5 Be4+ Ke2 Qd8 Be3 Qe7 Bb6 Kg2 Bd4 Qc3 Bb6 Rh1 Be3 Qb2 Rg1+ Kh3 Rg5 Rf1 Rc5 Kg2 Rc6 Rg1 f1R Kh1 Rf3 Rf1 Qb4 Ra1 Bg1 Ra2 Qe1 Ra1 Ngf6 g8N Kf1 Ra2 Ng4 Nf6 Rg8 Nd5 Rg7 Nb6 Ngf6 Nbc4 Ng8 Ne5 Nh8 Bc5 Rg2 Ra7 Ng6 Ba3
Qr2B2K/2R3rB/b4p2/1Rnq4/1PPRbQ2/2NQ1n2/2rrb1rn/1k4b1 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 g5 Ra6 f3 Bf4 f2+ Kd2 Bg7 Nc3 Bf8 Ra1 gxf4 Ne4 h6 g5 h5 Nf6+ Ke7 Ng4 hxg4 Qb1 Ke8 Qc1 Na6 Qd1 Nb8 Kd3 Ke7 Ke4 Ke6 b4 a5 c4 d5+ Kd3 Kf5 h4 g3 g6 f6 h5 f3 g7 g2 b6 a4 b7 a3 e3 a2 h6 Bc5 h7 Nd7 b8Q Ra7 Qb6 Ne7 g8R Ba6 Rg7 Nc6 Qb7 Nce5+ Kc2 Ke4 Rb1 a1R Qc1 d3+ Kc3 d2 Nh3 g1R Qa8 d1R Nf4 Ra2 Ne2 Rg2 Rh5 Rdd2 Rf7 Rhg8 h8Q R8g7 Qa3 Rb7 Qh6 Rb8 Rd1 Bb6 Rg5 Nc5 Rc7 Qd7 Nc1 Rab2 Na2 Qd8 Be2 f1N Qh2 f2 Bd3+ Kf3 Kd4 Rbc2 Qh4 Nh2 e4 f1B Nc3 Be2 Qh6 Ng6 e5 Nh4 e6 Kf2 e7 Bf3 e8B Be4 Ra1 Ba7 Ra2 Ke1 Ke3 d4+ Kf4 N4f3 Qb3 Qd7 Ra5 Qd5 Rg4 Bb6 Rb5 Ba7 Na4 Kd1 Nc3+ Kc1 Qg5 Bh7 Be4 d3 Qe5 Bg8 Bh7 Bf7 Kf5 Bh5 Rd4 Bg6+ Kf4 Be4 Qg5 Rde2 Qg4 d2 Qg3 d1B Qf2 Qg8 Qe3+ Red2 Qd3 Beb7 Kf5 Be2 Qe3 Bd5 Qf4 Qf7 Na4 Bb6 Qd3 Kb1 Nc3+ Kb2 Re4 Nb3 Bg8 Bg1 Rd4 Kc1 Qfe4 Bdb7 Qf4 Qh5+ Ke6 Be4 Bh7 Nc5+ Kd6 R7g5 Ke7 Rg7+ Kf8 Qd5 Bg6 Rf7+ Kg8 Rg7+ Kh8 Kb2 Bh7 Kc1 Na4 Kb1 Nc3+
1KBbq1R1/3NR1nB/P1R5/r1q4q/1Pbq1Q2/p1B3Q1/k4qb1/3n1qr1 b - - 0 1 legal: proof: f4 a5 h4 e5 c4 exf4 h5 d5 cxd5 g6 Rh4 gxh5 Rh1 h4 b4 b5 Qb3 a4 Nc3 axb3 a4 Be7 a5 Bf8 Na4 bxa4 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 h5 g4 f5+ Kd3 c4+ Kc3 b2 e4 b1Q g5 h3 g6 h2 g7 h4 Bh3 a3 Bf1 f3 Be2 f2 Bg5 f1Q Nh3 f4 Bh5 f3 Bg6 f2 Bd2 Nh6 g8Q Nd7 Bh7 Qbd1 Rc1 Ba6 Ng5 h3 Ne6 Ng4 Nc5 Ndf6 Nd7 Ne3 Qf7 Qfe2 Re1 h1Q Qg7 f1Q Qg3+ Qf4 Rc2 h2 Rc1 Qh5 e5+ Ke7 e6 Kd6 e7 Ne8 Rc2 Ng7 e8B Rg8 Beg6 Bb5 Bf5 Qf1 Bh3 h1B a6 Qde8 Bg4 Bg2 Bh3 Be7 Rc1 Kc7 d6+ Kc6 Bg4 Rd8 Bgf5 Ba4 d5+ Kb5 Be6 Q4f2 Kd4 Bg5 Ke5 Bb3 Bc3 Ka4 Nf8 Bc2 d7 Kb3 Kd6 Bh1 Kc7 Ngf5 Bd4 c3 Qg2 Ka2 d6+ Bb3 Qf3 c2 Qf4 Rb8 d8Q Rb5 d7 Ra5 Kb8 Qdd2 Qc8 Nd1 Ba1 Qdd4 d8R Qa4 Re8 Bd8 Qc3 Rg1 Bc8 Bg2 R1e7 Ng7 Qcg3 Qc6 Bb2 Qcg6 Nd7 Bbd5 Rh8 Qe8 Rg8 Bf7 Rb1 c1Q Ba1 Qc6 Rc1 Be6 Rc5 Bc4 Bc3 Qcd6+ Rc7 Q6c5 Rc6
B1nb4/2b5/1q1npRb1/1R1b1P1r/P2Q2Q1/Nn2r1Nn/1NK4b/q1Q4k b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Bb2 fxe4 Ba3 bxa3 d4 Kf7 Kd2 Kf6 g4 Kg5 f3 Kf4 g5 Kg3 g6 c5 g7 b5 d6 h5 d7 b4 f4 h3 d5 h4 d6 e3+ Kc2 a2 Nd2 b3+ Kc1 b2+ Kc2 b1N Kd3 h2 Ndf3 c4+ Kc2 h3 Qd4 c3 Ne1 e2 Kb3 c2 Qb4 c1B Ngf3 Nh6 g8N Nd2+ Kc3 Nc6 Qc4 Nb3 Ne5 Qb6 d8Q Nf7 d7 Nd6 Nc2 e1B+ Kd3 Ba5 Bg2 Na7 Qe8 Rh5 d8Q Bf5+ Qe4 Bg6 f5 Bf4 Na3 Nac8 Rab1 a1Q Kc2 e6 Qee7 Rb8 Qec7 Be7 Nd3 Bf6 Rhg1 h1N Nb2 Kh2 Ne7 Nf2 Nd5 B6g5 Qdd7 Bd8 Ne3 Rb7 Qcc4 Rc7 Qc3 Rc5 Qf3 Re5 Qg4 Bc7 Ba8 Re4 Ned1 Re3 Qdc6 Be5 Qcd4 Bf4 Rg2+ Kh1 Qcc4 h2 Qc6 Re1 Ne3 Nh3 Nf1 Re3 Qcc5 Be1 Qcc3 Bh4 Qcd2 Bhd8 Qc1 Na5 Nd1 Be5 Rb5 Nb3 Nb2 Bg3 Re2+ Kg1 Rd2 h1B Rh2 Bc6 Rf2 Kh1 Rg2 Bh2 Rg3 Nf4 Rh3 Bd5 Rh4 Rg5 Rh5 Nh3 Rh6 Be8 Rg6 Rh5 Rf6 Bg6 Ng3+
3n2QQ/KNR1pQ1P/3R2R1/N5nB/2P1b1nq/1r2r2b/1qn3r1/kn2r3 b - - 0 1 legal: proof: d4 a5 e4 c5 f4 cxd4 b4 axb4 g3 f5 Bg2 fxe4 Bh3 Qc7 Bf1 Qd8 Be3 g6 Bf2 Bh6 f5 Bf4 gxf4 h6 Bh4 Na6 Bf6 Nb8 Bg5 hxg5 Kd2 Kf7 c4 Kf6 a4 b5 h4 d5 h5 e3+ Kd3 b3 h6 g4 h7 g3 a5 b2 a6 g2 a7 g5 Ra4 g4 Rh5 b4 Nd2 b1Q+ Qc2 b3 Rg5 b2 Ngf3 g1R Ra3 e2 Bg2 e1N+ Ke2 d3+ Ke3 d4+ Ke4 g3 Qd1 Nh6 Nf1 d2+ Rd3 Ng4 Rg8 Nc6 Ng5 Nc2 Qf3 d1B Ne6 Qc1 Rg7 b1N Nc5 Qb2 Nb7 Be6 Bh3 g2 Nd2 Rb8 a8R Rg8 Nb3 Re1+ Re3 g1N N3a5 d3 Ra7 Bd7 Kd5 d2 Rd3 Re3 Kc5 Qf8 Rd4 Nd8 Rd6+ Be6 Bf1 Nh3 Be2 Ng5 Qg2 Qf7 Qd5 Qh5 Rg6+ Kf7 f6 Qh4 f5 Rg7 Bf1 Bf3 Be2 d1R Qe5 Re1 Qg3 Qa1 Kb6 Be4 Qe5 Qb2+ Ka6 Kf8 f7 Rg8 Qh8 Bd7 Nc5 Rbb3 Rc7 Be6 Ncb7 Bd7 Ka7 Bc8 Qe5 Be6 Rf6 Kg7 Qg3 Bd7 Rfe6 Bc8 f6+ Kg6 f8Q Kf5 f7 Rg7 Qh3 Rg6 Rf6+ Ke5 Qh8 Rg8 f8Q Be6 Ra6 Kd4 Qf1 Kc3 Rd6 Nh2 Qf2 Nh3 Rf4+ Kb4 Rd1 Ka3 Rd3 Ka2 Rf6 Ka1 Rd6 Rg2 Rg6 Ng5 Q2f7 Bh3 Bh5 Ng4 Qf8g8
r2nr3/1r1pP1Q1/3K1R2/1BB2rbk/2QP4/3b1r2/nq1b2R1/1b1N1qQB b - - 0 1 legal: proof: b4 c5 a4 e5 f4 b5 axb5 exf4 Ra6 cxb4 Ra2 Ba6 Ra1 Bc8 g4 fxg3 Ba3 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Bb2 Qf6 Bc1 Qd8 e4 f5 Ke2 Kf7 Ke3 Kg6 Kf4 a5 Ke5 a4 h4 a3 d4 a2 c4 b3 b6 f4 b7 f3 c5 b2 c6 b1B c7 f2 Qd2 Nc6+ Kd5 Be7 b8Q Kh5 e5 g5 e6 g4 Nf3 g1Q Be2 f1R Rh2 g2 Qd1 g3 Bd2 Ba6 c8B Nh6 Bb4 Re8 Bc5 Nf7 Qb5 Bg5 e7 Qb6 Nd2+ Rf3 Ne4 Nfd8 Nf2 Qf1 Kd6 g1R Qc4 g2 Bb7 Qb2 Qdc1 Rb8 Nd1 Nb4 Qe3 Rh1 Qg1 Bd2 Bc6 Rb7 Bd3 Rf5 Bde4 Bg5 Bb5 Bd2 Rh3 Bg5 Rf3 Rh3 Rf4 Rf3 Bd5 Re5 Rf6 Ref5 Be4 Bc2 Rc1 Bb1 Rc2 a1R Rf2 Na2 Bd5 Kg4 h5 Kh4 h6 Kh5 Rc2 Bd2 h7 Bg5 Qe3 g1B Rg2 Bf2 Be4 Be1 Qg1 Bed2 h8Q+ Bh6 Qg7 Bhg5 Bbc6 Bb5 Qe2 B5d3 Bb5 Nb4 Bec6 Ra8 Qe6 Na2 Qc4 Rh3 Rg4 Rg3 Bh1 Rgf3 Rg2
3qNRbn/kqP4n/b4bQ1/Bqr1Q2P/2b4N/q4Q2/pB2r3/b1K1B3 b - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 a3 h5 Bh3 g6 g5 b5 Bg4 hxg4 a4 f3 axb5 Rh7 Ra6 Rh4 Rf6 Rh8 Rf5 gxf5 Be3 f4 Bd2 Rh3 Bc1 Rh8 Kd2 f5 e4 d5 c4 Kd7 h4 Kc7 e5 Kb6 e6 a5 g6 f2 g7 f1B h5 a4 c5+ Ka7 e7 g3 e8Q d3 c6 a3 c7 a2 Qe4 f3 Na3 f2 Qeg4 g2 Nb1 f4 Qb3 f3 Qe6 d4 Bb2 Nd7 Qf6 Ba6 Qg5 Ne5 Qf5 Be7 Na3 Nf7 Nc4 Nf6 g8Q Nh7 Qh3 Bf6 Qg5 Re8 Qh2 Nh8 Nd6 Re2+ Kc1 Qb8 Qhg3 Qb7 Qg6 Rf8 Ne8 d2+ Kc2 d1B+ Kc1 d3 Qe5 Bc2 Qa3 Bb3 b6+ Ka8 b5 Bg8 Rh4 Rf7 Rf4 d2+ Kd1 Rd7 Qad3 Rd5 Qdc3 Bd8 Rf8 Bf6 Qcd3 Rc5 Qdd5 Qc6 b7+ Ka7 Qdf7 Qe4 Qb3 Qe3 Qbf7 Qa3 b8B+ Kb7 b6 Bc4 Nh3 g1B Ng5 Ka6 b7 Bh2 Qc3 Be5 Ba7 Bd4 Bb6 Bde5 Ba5 Ka7 Bc1 Ba6 Qe3 Ba1 Qe5 Bc4 Bb2 Ba6 Qb3 Bac4 Ne4 Ba6 Ng3 Bac4 Kc2 d1Q+ Kc3 Qd8 Nf5 Bh3 Nh4 f1Q Nf5 f2 Nh4 Bc8 b8B+ Ka6 Ba7 Qg2 B7b6 f1Q Bb4 Qb7 B6a5 Bcd5+ Kd3 Ka7 Be1 Bc4+ Kc3 Re4 Kc2 Re2+ Kc1 Qf5 Qe7 Qfd5 Qf3 Qb5 Qf2 Ba6 Qf3 Qdb7 Qe5
1K2bqk1/2p3B1/2r4n/1Q3P1Q/2q1bnbb/4qrPB/3N1R2/RQB1qb2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 d5 e4 dxc4 b5 f5 Nc3 fxe4 Na2 b6 Nb4 axb4 a5 Qd4 axb6 Qd8 Ke2 Kf7 Ke3 e5 f4 h5 d4 h3 g3 c3 d5 h2 b7 b3 d6 c2 b6 h4 d7 h3 Bb5 b2 Ra2 b1B Rb2 Ra6 Bd2 c1Q Ba4 Bd3 Qg4 Qc4 Qh4 Nc6 b8B Nd4 b7 Ne6 Rb6 Bf1 Bc6 Nh6 Bc1 Be7 Qg4 Qf8 d8Q Bh4 Qh5+ Kg8 Ba7 Bd7 b8Q Be8 Nf3 Rh7 Qd5 Rf7 Rg1 h1B Rb4 h2 Bd7 Rc6 Nd2 Bf3 Bd4 h1B Qdb5 Bg4 Rg2 Rf6 Rb1 Rf7 Ra1 Rf6 Qb1 Rf5 Q8b5 Rf6 Kf2 e3+ Ke1 e2 Kf2 e4 Ke3 Rf5 Bg7 e1Q+ Re2 Ng5 Bc8 Nh3 Bd7 Qc2 Kd4 e3 Rg2 e2 Rf2 Be4 Bc8 Rfc5 Bd7 Rc3 Ke5 Rf3 Bc8 Bef5 Kd5 Qc4+ Ke5 Rb6 Rg2 Qf2 Bd7 Be4 Bf5 Qe3 Rf2 e1Q Bc8 Bgf5 Bd7 Qcb4 Bc8 Bc2+ Kd5 Rf6 Bd7 Be6+ Kc6 Qc4+ Kb7 Be4+ Kb8 B6f5 Bc8 Rc6 Qg5 Bfg6 Bg4 Bh5 f5 Nf4 Bh3 Bg4 Qh5
3q1bq1/1Q4rr/3BQR2/QRb3bB/4nqnP/2rN1k1p/PKb5/1B1r4 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g4 h5 h4 hxg4 Nc3 Qg5 Ne4 Qf6 Nf2 Qd8 Nfh3 gxh3 d4 Qd6 Kd2 Kd7 Kc2 c5 e4 b5 e5 f5 Ba3 g5 Kc1 g4 Qd3 f3 Qe3 f4 Bb2 c4 Qa3 b3 Qa4 g3 Rh2 f2 Bd3 f1Q+ Kd2 f3 Kc3 g2 Qa6 f2 Bb1 b4+ Kd2 Ra7 Qa5 Na6 Bd3 c3+ Ke3 c2 Kd2 Nh6 Qa3 Nc5 Qa6 Rh7 Nf3 g1B Ne1 Qg2 Kc1 f1Q Rb1 Qg8 Ba3 Ng4 e6+ Kc7 e7 Bf5 e8B b2+ Kd2 c1B+ Kc2 Bg5 Rf2 Qf6 Qe6 b3+ Kc3 Rb7 d6+ Kb6 Rf4 Rbg7 Bh5 Kc6 Rf3 Qe7 d7+ Qd6 d8Q Be4 Rf5 Qf4 Rf6 Bf5 Qee7 Kd5 Qb8 Bf2 Bc2 Bd3 Qd7 Ke4 d5 Qb6 d6 Ke3 Ng2+ Kf3 Qe6 Qc7 Qb7+ Ne4+ Kb4 Qc8 Ka4 Be3 d7 Qc7 Be7 Bc5 d8Q Qc8 Qa5 Qd8 Rd1 b1R Bd6 b2 Kb3 Rc1 Rg1 Ba7 Ka3 b1R Ne1+ Kf2 Rh1 Ra1 Rg1 Bc5+ Kb3 Ke3 Rg3+ Kf2 Kb2 Rd1 Re3 Rac1 Bb1 Rc4 Rg3 Bc2 Rb3 Rc3 Nd3+ Kf3 Rb5
BQ1r3Q/3N2rn/2R1qq2/1nbpN1qR/rq2PP2/4kr2/1NK5/4Rbb1 b - - 0 1 legal: proof: g4 e5 d4 exd4 h4 g5 a4 gxh4 g5 c5 g6 b5 axb5 c4 Bd2 c3 Bh3 fxg6 Kf1 cxd2 Kg2 g5 Kh2 g4 Bf1 Qa5 Kg2 Qd8 e4 Ke7 c4 Kd6 f4 Kc5 Kf2 h5 Ke2 d5 Kd3 a5 b3 g3 b6 a4 b7 h3 Qc1 d1R+ Kc2 h2 Qd2 g2 Nh3 g1B Kd3 a3 Nc3 a2 Nf2 h4 Be2 h3 Bh5 Rf1 Nb5 Qg5 Bg6 Ra4 Bf5 Nf6 Ng4 Rf3+ Qe3 Nh7 Kc2 Nc6 b8Q Ba6 Nc3 Na7 Bc8 Nb5 Re1 a1Q Ne5 Be7 Qc1 Rd8 Bb7 Qa3 Qd1 Qb4 Ba8 Qf6 Qa1 d3+ Kb1 Kd4 c5 d2 c6 d1R+ Kc2 Rdd3 c7 Bc5 c8R Rg3 Rc7 Rdf3 Rc6 Rg7 Nd1+ Nc3 Qc7 Bf1 Nb2 Nb5 Qb8 Be3 Rg1 h1Q Rg5 h2 Rf5 Bg1 Rh5 Qa5 b4 Qg2+ Kc1 Qgg5 Kc2 Na7 b5 h1Q b6 Qh3 b7 Qhe6 Qd6 Qb5 b8N Qb4 Nbd7 Nb5 Qf8 Ra6 Qh8 Ra7 Qa5 Ra6 Qb6 Ra4 Rd1+ Ke3 Qb8 Bf8 Rb1 Bc5 Re1+
2Q2R2/2q1n2q/QqbBNp2/2bP1RQ1/rk3n2/r2b1KB1/qP1b4/n1R5 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 g3 h6 Bg2 h5 Bf3 Qg5 Nc3 Qd8 Ne4 Qd6 Nf2 gxf3 g4 Qd7 g5 Qd8 Ng4 hxg4 Kf2 Ke7 e4 Kd6 d4 a5 h4 c5 b6 f6 h5 a4 d5 c3 g6 a3 h6 a2 h7 c4 g7 Kc5 b7 c2 e5 c3 e6 g3+ Ke1 g2 Kf2 Ne7 g8R Qa5 Rh2 Bd7 Qd2 Bc6 Rh4 Na6 b8Q Nb4 Rb1 a1N Qd3 Qa2 Qd8 Ra3 Bd2 c1Q Qg6 c2 Ne2 Kc4 Be1 Nd3+ Kg1 Ra4 Qa8 f2+ Kh2 f1Q Nd4 f3 Kg3 f2 Qg5 g1Q+ Kf3 Nf4 Rh5 Kc5 Qa5+ Qb5 Qa6 f1B Bf2 Kb4 Bg3 Bg7 Ra8 Qb7 Rf8 Rg8 h8B Bd3 Bf2 Qh2 Bg3 Bh6 Bg7 Qb6 Rf7 Ra8 Rf8 Qcd2 Rc1 Qc3 Qg6 Qcc5 Rf5 Qd6 Qg5 Qdc7 Rd1 c1B Re1 Ng8 e7 Be3 e8Q Ne7 Ne6 Bc5 Rc1 Qh3 Qec8 Ra3 Qab7 R8a4 Qa6 Ng2 Qg6 Bd2 Bh6 Qh2 Bhf4 Qh7 Bd6 Nf4 Qg5
N1BrQ3/q1Bnb3/b3PrQK/bN1kn3/pbnR4/1q1P4/4Q3/N1n3r1 b - - 0 1 legal: proof: b4 d5 a4 b5 g4 h5 f4 hxg4 c3 g3 f5 g2 c4 dxc4 axb5 e6 Ra6 exf5 Ra3 f4 Rg3 fxg3 e4 Ke7 Ke2 Kd6 Ke3 g5 h4 c5 e5+ Kd5 b6 a5 d3 f5 b5 c3 b7 f4+ Kf3 g4+ Ke2 f3+ Ke3 c2 Kf4 a4 h5 c4 e6 f2 b6 c3 h6 Ne7 Kg5 Ng6+ Kh5 Bb4 h7 Ne5 Nf3 g1Q Qe2 g2 Nd4 g3 Nb5 Rf8 h8Q Rf6 Qh6 Nbd7 b8Q Ba6 b7 Qb6 Bf4 c1N Qg6 c2 Qbe8 Rd8 b8N Qa7 Rh2 Qh1 Rh4 g1B N1a3 g2 Kg5 Bh2 Bg3 g1R Kh6 Be7 Bh3 f1N Rf4 Qe4 Bg2 Nd2 Rh4 Ndc4 Bf4 Nc6 Bc7 Bhd6 Rg4 Qf3 Rf4 Bb4 Rd4+ Kc5 Bh1 N6e5 Bg2 Qfa8 Bb7 Qb6 Bc8 Qaa7 Nc6 Ba5 Nb4 Qbb8 Nd5 Qbb6 Nd6 Qb3 Nb6 Bb4 Na8 Kc6 Re4 Kd5 Rh4 Na2 Ndb5 c1B+ Rf4 Bcd2 Nc2 Nc1 Na1 Bdc3 Rh4 Ba5 Re4 Bcb4 Rd4+
1qn1N1nQ/n5Q1/p1q5/b4K2/RB1r1N2/1PP2bqR/2Qbk1n1/1Nr4q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Ra2 f5 Bg4 fxg4 Ra1 g3 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf4 g5+ Kf3 Ke5 e4 f5 h4 f4 c3 g4+ Ke2 f3+ Kd3 f2 b3 f1Q+ Ne2 g1Q b6 a6 h5 g2 b7 g3 h6 Qf3+ Be3 Nc6 b8N Na7 h7 Bg4 Qf1 Bb4 Nd2 Ba5 Rh6 Qh1 Qf2 g1B Rb6 g2 Kc2 d3+ Kc1 d4 Nf1 d2+ Kc2 d1N Kd3 Nb2+ Kd2 d3 Rh6 Na4 Bc5 Nb6 Nf4 Nbc8 Ra4 Bh2 Qg3 g1Q Bb4 Qc7 Qf2 Qgg3 Rh3 Qfg2 Qe2 Bf3 Ke3 d2 Qd3 Qc6 Qc2 d1N+ Kd3 Qgg1 Nd2 Qgb6 Nb1 Bg1 Rh2 Ne3 Rh3 Kf6 e5+ Kg5 e6 Kg4 e7 Ng2 e8Q Be3 Qf8 Bd2 Nd7 Qb8 Be7 Bd1+ Kd4 Kf3 Bb4 Kf2 Qg7 Bf3 Ng6 Ke2 Nf6 Nge7 Ne8 Rf8 h8Q Ng8 Bd6 Rf4+ Ke5 Rd4+ Ke6 Nb5 Qb2 Ra7 Kf5 Rd7 Bc5 Nba7 Qc2 Re7 Nc7 Kf1 Ba3 Re1 Nf4 Rc1 Bb4 Kf2 Ne8 Kf1 Nd5 Ke2 Nf4+
7r/1KR1Pb2/4BqN1/Q1Nn1bp1/2nk1q1P/3R1bQb/2rRrn2/r2Q4 b - - 0 1 illegal: No possible last move, all moves rejected
2r1n1b1/n2kP1Pr/bR6/2pQ4/1q1b1NNB/1r1bqNQK/1R1q4/6rQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 a6 b6 Bh6 e3 Qd4 b5 Kf8 b7 Bh3 b6 Qd8 Be2 Bc8 Bg4 Ke8 Bh3 Bf8 Bd7+ Ke7 Bb5 axb5 Bb2 Kd7 Bc1 Ke8 Kf2 h5 d4 c5 g4 f5 Kg2 h3+ Kh2 f3 g5 h4 d5 c3 g6 b4 e4 c2 d6 f2 e5 f1R e6 f4 e7 f3 Ra5 b3 Ba3 c1Q Ra4 b2 Ra6 f2 Ra4 Rh7 Qc2 Kd7 Ra6 Nf6 Qe4 Qe3 Nf3 Nc6 b8Q Na7 b7 Rg1 Nc3 b1Q Bb2 f1B Ne2 Bg7 Nf4 Bd3 Rb6 Ne8 Bf6 Qb4 Bg5 Bd4 g7 Rg3 Rb1 Rg1 Rb2 Rg3 Kh1 h2 Bf6 Rh3 Kg2 h1R Qd5 Rb1 Qh5 Rg3+ Kh2 h3 Bh4 Rgg1 Qd5 Nc6 Qa7 Rb8 Qa1 Ra8 b8Q Bca6 Ng5 Na7 Nf3 Rgd1 Kg3 h2 Kg4 Rg1+ Kh3 Rbc1 Qb1 Rc3 Qe1 h1B Qg3 Nc7 Qbb7 Rb8 Qa8 Rb3 Qac6+ Kc8 Qa8 Ne8 d7+ Kc7 Ne5 Bhe4 Ng4 Bf5 Qh1 Be6 Qae4 Bg8 Qd5 Qc8 d8N Qd7 Nc6 Rc8 Ne5 Qd6 Nf3 Kd7 Qe5 Qh6 Qg5 Qed2 Qh5 Qe6 Qg5 Qee3 Qd5+
q7/1P1R4/Q1nK4/B4Nb1/1Q2qQPR/qr1nbp2/3brr1k/1qN2r1N b - - 0 1 illegal: No possible last move
5RB1/1k3r2/1brQ1rn1/Np1P3P/1B1b4/B2Qq2N/K2Nrr2/1r1nnn2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 a3 f4 a4 Bf5 gxf5 Qc8 Ra3 Qd7 Rd3 Qd8 Rd6 h6 Rg6 h5 Rg4 hxg4 e4 Kd7 h4 Kc6 d4 b5 Kd2 g5 Kc2 c3 Kb3 g3 h5 g4 a5 c2 d5+ Kb7 f6 c5 e5 g2 f7 f2 e6 g3 e7 c4+ Ka2 f3 e8Q c3 Qee1 b3+ Ka1 b2+ Ka2 Qg5 Qdd2 Nh6 Qde3 Nc6 Ne2 g1R Qc5 g2 Bf4 c1N+ Ka3 c2 Qcb4 Nd3 Qd2 c1R Rh3 Nce5 Qd1 Ng6 Qd6 Re8 Qb3 Bg7 f8B Rc6 Bc1 Nf5 Ka2 Rh6 Nf4 Ne1 Nd2 b1R Ba3 Re2 Qd3 Ne3 Rg3 Bd4 Nh3 Nd1 a6+ Kb6 a7 Kb7 a8N Qe3 Bb4 Rh1 Rg4 g1B Rf4 Rh2 Nb6 Rh7 Nc4 Rf7 Bg2 f1N Be7 f2 Be4 Ng3 Bf5 f1R Be6 Rhf2 Ba3 Rf6 Bg8 Rf7 Rg4 R2f6 Rf4 Rff2 Bf8 Nf1 Na5+ Ka6 Qe5 Ka7 Bfb4 Bb6 Qd6 Ka8 Nb3 Kb7 Na5+ Ka7 Qc4 Rg7 Bc3 Qc5 Be5 Rf3 Nb3 Rf5 Qb4 Kb7 Qe4 Be3 Bd4 Rff2 Bc3 Qd4 Qf3 Qe5 Ba5 Bed4 Qd3 Qe3 B5b4 Re7 Rh4 R5f3 Rf4 Rec7 Rf7 Rf6 Rf8 Rcf7 Na5+
5Rqn/1p2q3/r5bn/5B2/4Rrk1/nP2B2q/2nQ1nPQ/1nKN1rBR b - - 0 1 illegal: No possible last move, all moves rejected
R2B1n1q/P1RN2br/4r1QP/2rR2nn/2q5/2N1knp1/Q2nq3/K1n3N1 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 f5 Qd2 h5 Qd3 f4 Nb1 b6 Bh3 Bb7 Qd2 Be4 Qd1 Bf5 gxf5 Ra5 Bg4 hxg4 Na3 Ra6 Nb1 Ra8 Kd2 Kf7 a4 Kf6 c4 Kg5 Kc2 d5 Kb2 b3 e4 g3 f6 g2 c5 f2 a5 f1Q a6 d3 a7 b5 h3 b4 f7 d2 e5 d4 c6 d3 c7 f3 c8N Kf4 h4 g5 h5 g4 h6 f2 e6 g3 e7 Rh7 e8Q Bg7+ Nc3 Nd7 f8R+ Ngf6 Ra5 Qe2 Ra6 f1Q Nb6 Rc8 Nb1 Rc5 Qh5 Ke3 Rg8 Nf8 Qf5 Nh5+ Nc3 Qf4 Ra2 Qc4 Kb1 b2 Nf3 g1N Qd5 Nh3 Nb5 Ng5 Qb3 Qc8 Ra5 Qb8 Ka2 b1N Ba3 d1R+ Bb2 Nd2 Nc3 Re1 Ng1 Ndf3 Qa8 d2 Nd7 d1N Qc6 Nf2 Qg6 Nd3 Rh8 Nc1+ Ka1 Qd8 Qa2 b3 Ba3 Qf6 Bb4 Qe5 Rb5 Qb8 Ba5 Qc8 Bd8 b2+ Kb1 Qb8 Rb7 Qa8 Rc7 Qb8 Rh4 Qc8 Rd4 Qa8 Rd2 Qb8 Kc2 b1N Rg8 Qc8 Kb2 Qa8 Ka1 Qb8 Rd5 Nbd2 Qb6 Ng6 Qe6+ Kf4 Qd6+ Qe5 Bf6 Qe8 Rf8 Re4 Rf7 Qh8 Re7 Nf8 Re8 Re3 Qda6 Qee4 Be7 Qe2 Qe6 Q4c4 Qg6 Re6 Ra8 Ke3 Bd8
3nKn1Q/1kq2pb1/8/4P2b/1NnN1qRB/4R2q/1Pq1b1b1/QNrQ2q1 b - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 e5 f4 exf4 g5 b5 Be3 bxa4 Bc1 g6 Bh3 f3 Bf5 gxf5 h5 f4 Rh4 Ra6 Rh1 Rg6 hxg6 Qc7 Rh5 Qb6 Rh1 Qd8 Kd2 h5 Kd3 d5 c4 Kd7 e4 Kc7 g7 h4 g6 a3 c5 f2 c6 f1B+ Ne2 a2 e5 a4 Qe1 f3 Qg3 h3 Qg5 f2 Qg4 a3 Nc3 h2 Bf4 Bb7 Na4 Nd7 Rb1 a1Q Qg5 a2 Nc5 Ne7 g8N Bg7 Rd1 Qc1 Qh5 a1Q Na4 Nf8 Bg5 Qf4 Rg1 h1Q Bh4 Qh3+ Rg3 Kb8 Nc3 Qc7 Re3 Bg2 Qf3 f1N Nf6 Nd2 Nb1 Nc4 Rg1 Ba6 Qf1 Rh5 Qd1 Rf5 Nd7+ Ka8 Nb8 Bb5 Na6 Rf6 Kc2 d3+ Kb3 d4 Kb4 d2 Kc5 d3 Nb4 Qa4 Nd4 Qc2 Qg4 d1Q Qf3 Bf1 Rg4 Bg2 Qe2 Qg1 Qd1 Qd7 c7 d2 c8Q+ Ka7 Qf3 Nc6 Qd1 Nd8 Qa6+ Kb8 Qa1 Kb7 Qe2 d1B Qd2 Bh6 g7 Rd6 g8Q Bg7 Qh8 Qc7+ Ndc6 Bdf3 Qe1 Rd1 Qf1 Qa5 Nd4 Rc1 Qd1 Be2 Rg5 Bh5 Rg4 Na3+ Kd6 Be2 Ke7 Nc4 Ke8 Qb6 Bg3 Qc7 Bh4
4q3/1p2N2Q/p1Pbq3/R1B5/q2n2rn/r1Q1B2B/nr1bNPN1/4k1Kb b - - 0 1 legal: proof: h4 f5 e4 g5 exf5 gxh4 c4 c5 b4 cxb4 a3 bxa3 c5 d5 Ra2 Bh6 Rc2 Bf8 Rc4 dxc4 d4 Kd7 g4 Kc6 g5 Kd5 f6 Ke4 f7 e5 g6 h5 d5 a2 g7 a1Q d6 h3 d7 h2 Nf3 h4 Ng1 h3 Be2 c3 Kf1 c2 Bb5 Nc6 Bh6 c1N Qa4+ Nd4 c6 Bd6 f8N Ne7 g8Q Nf5 Ng6 Qe8 d8B Be6 Bb6 Bd5 Bg7 Na2 Bc7 Rh4 Nf3 Rg4 Qa6 Nh4 Rg1 h1R Bf8 h2 Ne7 Kf4 Ng5 e4 Qg7 e3 Nh3+ Kf3 Qa5 Be4 Nf4 e2+ Ke1 Bd5 Bb6 Be4 Rf1 Rhg1 Qd2 h1Q Qh7 Qh3 Bd3 R1g3 Qc3 a6 Bc5 Rd8 Bh6 Bd5 Ne6 Kg2 Bf5 Rd3 Bc1 Rd2 Rh1 Rb2 Be3 Bf3 Rh2+ Kg1 Nf4 Bh1 Bd2 Qe3 Bc1 Qe6 Be3 Nc1 Rh3 Qa4 Rf3 Na2 Rh3 Ng6 Rh5 Nh4 Rg5 Rg2 Bh3 Rg4 Bb4 Rd7 Ra5 Rd8 Bc5 Rd7 Qcc2 Rd8 Nc3 Rd7 Kd2 e1B+ Kd3 Bd2 Qb3 Rg2 Nce2+ Kf1 Qc3 Ke1 Qb4 Ndf5 Ng1 Be5+ Ke4 Rd8 Nge2 Rd3 Qc4 Ra3 Qd4 Ng6 Kf3 Bd6 Qc3 Rg1+ Bg2 Nd4+ Kg3 Q8c8 Kh2 Nh4 Bf1 Rg4 Bh3 Ng2 Kg1 Qcd7 Qf5 Qe8 Qh7 Nh4+ Ng2+
2RnbrbN/3Q1r2/1Pp3k1/1Q6/2n1q2Q/nnrB3N/KP4p1/3RnbR1 b - - 0 1 illegal: No possible last move, all moves rejected
r1r5/Q1rn4/bR2nBrN/2bpq1qB/K1P1Q3/B1k1p2r/1P4b1/5QN1 b - - 0 1 illegal: Other
2Qb2bn/1q1qQnn1/1r2R3/p2P1B2/3n1Rpr/K4P2/1Q1B3k/R1n2qN1 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 e4 dxc4 Ke2 fxe4 Ke1 g6 h4 Nd7 g4 Nb8 h5 gxh5 g5 Qd7 Nf3 Qd5 Ng1 Qd8 Nc3 Nd7 Nd5 Nb8 Ne3 Nf6 Ng4 hxg4 Ra2 Ng8 Ra3 Bg7 Ra1 Bf8 b4 Kd7 d4 Kd6 Kd2 e5 Kc3 c5 Kb2 a5 d5 h5 b6 c3+ Kb3 h4 f3 c4+ Ka4 h3 g6 c2 b7 e3 g7 e2 b5 e1N b6 h2 Bg2 c3 Ra2 e4 Bh6 Ke5 Bc1 e3 Qd3 Kf4 Kb3 Kg3 Bf1 e2 Ra3 Rh4 Bg5 c1Q Bg2 c2 Ra1 Ne7 g8R Nd7 b8Q+ Ne5 b7 Qb1+ Ka4 c1N Qa7 N7g6 b8Q Be6 Qbb7 Nh8 Qd7 Qb7 Bf1 Be7 Qc8 Rb8 Qb1 Qdd7+ Qc6 Bd8 Bf6 Nc2 Bg5 e1Q Rf8 Nef7 Bd2 Nd4 Bd3 Qf1 Bf5 Kg2 Qb2 Kg3 Ne2+ Kh3 Rg1 h1N Ka3 Ng3 Qc8 Nh5 Qac5 Ng7 Qe7 Nd6 Rg2 Bg8 Rf2 Ndf7 Ng1+ Kg3 Rh2 Bb6 Re2 Bd8 Re6 Kh2 Re8 Qa8 Re4 Rb6 Rf4 Qac6 Qeb4 Qdb7 Re6 Qcd7 Qe7
2b4r/R1n4r/nr2Nbpq/Q2r1qP1/2rn1QBp/BN1k4/3P4/2BK1N2 b - - 0 1 legal: proof: b4 b5 f4 e5 a4 exf4 h4 d5 axb5 g5 c4 gxh4 Ra6 dxc4 Rg6 fxg6 g4 Ke7 e4 Ke6 g5 Ke5 b6 Kd4 b5 a5 b7 c5 b6 h5 e5 h3 e6 a4 e7 a3 e8Q h2 Bb2+ c3 Qda4+ c4 Bd3 a2 Qa7 a1R Ba3 c2 Qe6 c1R+ Ke2 c3 Qa5 f3+ Kf2 c2 Nh3 Nf6 Qef5 Bg7 Nf4 Ra6 Be2 Nd5 Nc3 Nc7 Nd1 Bf6 Ne3 Qf8 Nf1 Qh6 Bd1 Rh7 Ke1 f2+ Ke2 Ra2 Ne6+ Kc4 Rg1 h1R Qfe5 Rh4 Qe3 Rd4 Qf4 h4 Rg3 Ra8 Rf3 Rb1 Bc1 Ra4 Ra3 Nba6 b8N Rb5 b7 Rb6 Nd7 Rb8 Qh2 Rd5 Ndc5 Rab4 Nb3 Ra4 Kf3 Kd3 Qf4 Ra8 b8B Rc4 Bb2 c1N Ra4 Ne2 Bc1 Nb5 Bd6 Nbc7 Bda3 Nd4+ Kg2 Bd7 Bf3 Rah8 Bg4 Nc6 Kf3 Bc8 Nh2 Kc2 Ke2 f1Q+ Ke3 Qh3+ Ke2 Nd4+ Ke1 Kd3 Kd1 Qg2 Nf1 Qe4 Qb5 Qf5 Qc5 Nb4 Ra7 Nba6 Qa5
1Q2Rqb1/1nQ4N/2p4n/r1P1b3/3k1r1P/r1r2R1n/N1B1rp1q/K2R2N1 b - - 0 1 legal: proof: e4 h5 g4 hxg4 e5 b5 e6 dxe6 f4 b4 f5 exf5 b3 Be6 Bb2 Bd7 Be5 Bc8 Bg3 f4 a3 fxg3 axb4 Nf6 b5 Ng8 h4 Kd7 d4 Ke6 Kd2 Kd5 Kc1 g5 Kb2 e5 b4 a5 b6 f5 b7 c6 b5 g2 b6 f4 c3 f3 Be2 g3 Rh2 g4 Qd2 f2 Qe1 e4 Rh3 a4 Nf3 g1R Qc1 a3+ Ka2 g2 Nh2 e3 Qc2 g3 Qh7 Be6 Bd1 e2 Qd3 e1R Ba4 Bd6 Qh7 Re2+ Bc2 Nd7 b8Q Ra5 b7 Be5 Nf3 Rc1 Ng1 Nc5 Qhc7 Kc4 d5 Qf8 d6 Nh6 d7 Bg8 d8R Rh7 Rd5 Rf7 Rd8 Rf4 Re8 Kd5 c4+ Kd4 Qcc8 Bf7 Qbc7 Bg8 b8N Nb7 Nc3 Nd6 Rb1 Nb7 Ka1 a2 c5 Ra3 Kb2 a1R Nd7 Ra5 Q8b8 R1a3 Rh2 Rd1 Ra1 Rd3 Na2 Rdf3 Nf6 Rfc3 Nh3 g1Q Nh7 Qh1 Ng1 g2 Rh3 Qh2 Rd1+ Kc4 Nf3 g1N Rg3 Nh3 Ng1 Rg4 Rf3 Rf4 Rc1 Kd5 Ka1 Kd4 Rd1+
5b2/B1K1R2p/2p3rP/rP2RN2/b3q2b/4Q1Nn/R1bQ2rq/N2nbk2 b - - 0 1 legal: proof: f4 d5 e4 b5 d4 e5 a4 exd4 axb5 g6 c4 dxc4 e5 f6 f5 fxe5 f6 e4 Be2 Kf7 Bg4 Ke8 Bf5 gxf5 Kd2 Kd7 b4 Kd6 h4 Kd5 g4 a5 g5 c6 f7 a4 g6 c3+ Kc2 Kc4 h5 a3 h6 e3 b6 f4 b7 a2 b5 f3 g7 e2 Ba3 e1B Bb4 d3+ Kc1 d2+ Kc2 f2 Qh5 d1B+ Kc1 Kd3 Rh4 f1R Rc4 c2 Kb2 Bf5 Kb3 c1Q+ Rc2 Qe8 Nd2 Na6 Ka4 Qe4 Ka5 Rf2 Kb6 Ne7 b8R Rg2 g8N Qb2 Re8 Nc5 Nb3 Ng6 Qh2 Na4+ Kc7 Nf4 Rc5 Nh3 Re7 Ra5 Rce5 Nc3 Ne2 Ke3 Bd6 Kf2 Bc5+ Kf1 Ba7 Bc2 Qg3 Nd1 Qe3 Bg4 Nf6 Bh4 Nh5 Rg8 Ned4 Rg6 Nf5 Bf3 Nc1 Ba4 Nb3 Be2 Qd2 Bd3 Qe3 Bc2 Qd2 Bg7 f8Q Be1 Qfd8 Bf8 Q8d4 Bh4 Q4e3 Be1 Rc1 a1B Rb1 Qa2 Rc1 Bc3 Na1 Bh4 Rb1 Bb4 Rb2 Bc3 Qd7 Bce1 Qdd2 Qac4 Ra2 Qe2 Qed4 Qf2 Qb6 Qff4 Qbe3 Qh2 Nhg3+
n1q5/5Bq1/2NrQNb1/Kn2P3/1B1p1n2/Pbb3RQ/rB2p1Q1/k1q4b b - - 0 1 illegal: No possible last move
n3q3/1Q1nN2r/Q4B2/1p1rb1Rn/1R1PQ2K/2b1q3/1p1Pnk1R/1b1q1B2 b - - 0 1 legal: proof: f4 e5 b4 exf4 c3 d5 b5 d4 cxd4 a6 Na3 axb5 Nb1 b4 g4 fxg3 Qc2 h5 Nc3 h4 Ne4 g2 Ng3 hxg3 Qb3 Qg5 Qd1 Qd8 e4 Kd7 h4 Kc6 a4 f5 a5 b5 h5 g5 a6 f4 a7 f3 h6 f2+ Ke2 b3 Kf3 g4+ Kf4 Qe8 Kg5 Na6 h7 Bb4 e5 Kd5 e6 Ke4 e7 c5 Ne2 Kf3 Rb1 g1N Rh2 g2 Ng3+ Ne2 Rh4 g1B Rh2 c4 Rg2 c3 Ba3 b2 Qe1 c2 Kh4 c1Q Nh1 g3 Qd1 Nc7 Qa4 Nf6 Kg5 Bc3 Qa6 Qd1 Bd6 Bh2 Be5 Bf5 Kh4 Nd7 Rc1 Rd8 Bf6 Na8 Ra1 Bg6 Ra4 Bb1 Rg1 g2 Rb4 Be5 Ng3 Rb8 Nf5 Rd8 Rh1 g1Q Rh2 Rc8 Rg2 Rc5 Rg5 Rd5 Qb7 Rf8 h8R Rf7 Rh6 Rh7 Qa6 Qf8 e8Q Qf7 Bh3 f1N Ne7 Nfg3 Bf1 Kf2 Qec8 Qe8 Qcb7 Nab6 a8Q Nh5 Qac8 Na8 Qcc6 Qg2 Qe6 Qf3 Qg4 Qd3 Qe4 Qe3 Kg4 Nhg3 Rh3 Nh5 Kh4 Nc5 Rh1 Nd7 Rh2+
1r3RBb/K3Q1q1/b3n2p/qk5P/6Pn/rN1r1q1B/1pq4R/R1Qn1Q2 b - - 0 1 legal: proof: f4 f5 b4 c5 a4 b5 e4 fxe4 f5 g5 Nc3 cxb4 axb5 d5 Bb2 e3 Ne4 dxe4 Be5 Qd3 Bc7 Qd8 Bf4 gxf4 Ke2 Kd7 h4 e5 c4 a5 g4 f3+ Ke1 e2 Kf2 e1R d4 e3+ Kg3 e2 Kf2 b3 Ke3 h6 f6 e4 h5 f2 b6 Kc6 f7 a4 b7 a3 c5 a2 d5+ Kb5 Kd4 e3 c6 Qf6+ Ke4 Ra3 d6 Nd7 Kd5 Bg7 f8R Ne7+ Ke4 Qf3+ Kd3 Nf5 c7 Nh4 Bh3 f1N Qd2 Rd1 Rh2 e1Q Ne2 Qef2 b8Q+ Bb7 Qd8 Ba6 Qf6 Nc5+ Kd4 b2 c8B Ne6+ Ke5 Rg8 d7 Bh8 Nc1 e2 Kd6 e1Q d8Q Ne3 Nb3 Q2e2 Qf7 Qc4 Qf4 Qc2 Qe7 Qee2 Qff7 Qh7 Bb7 Qg7 Bd5 Qc4 Qc3 Rd3 Qc1 Qc2 Qf4 Nd1 Qf5 Nc5 Kc7 Ne6+ Kb8 Bb7 Rb1 Ba6 Ka7 a1Q Qff7 Qh1 Qf1 Qf3 Rf4 Rb8 Rf8 Ng5 Bg8 Ne6 Nd2 Qa2 Ra1 Qad5 Nb3 Qd8 Re2 Qa5 Rh2
4Rqn1/q1R2rQn/2p1nq2/1nB5/Rr2pkB1/2PP2bb/Q1K4b/1N4B1 b - - 0 1 legal: proof: g4 b5 a4 h5 axb5 hxg4 f4 g3 e4 d6 e5 dxe5 Nc3 exf4 Ne4 g2 Ng3 fxg3 h4 Kd7 b4 Ke6 d3 Kf5 Kd2 a5 b6 e5 b5 g5 h5 e4 c3 a4 h6 c6 h7 a3 b7 a2 b6 g4 Bb2 Na6 b8B Nc7 b7 Ne6 Qb1 Ra7 Rh4 Qf6 Qc2 Bd6 Kc1 Kf4 Nf3 g1B Qb1 g2 Rh3 g3 Kd2 Bh2 Nd4 g1N Qe1 g2 Kc1 Ne2+ Kd2 g1N Qb1 Nf3+ Kc2 Nfg5 Nf3 Bd7 Nd2 N2d4+ Kc1 Bg3 Ba3 Nb5 Bc5 Ra4 Kc2 Rb4 Qb3 Bc8 Bba7 Bb8 Rd1 a1Q Be2 Qa3 Bab6 Qa7 Bg4 Ke5 Bf8 Bh2 Rh6 Nc5 Rh5 Qd6 Bf3 f5 Rh4 f4 Ra1 Bh3 Bg4 f3 Nb1 f2 Ra4 f1Q Qa2 Qff6 Rh5 Bc7 b8R Ne6 Bg1 Qdd8 Bfc5 Qdf8 Re8 Bb8 Bd1 Kf5 Be2 Bbg3 Bg4+ Kf4 Rh6 Ne7 Rh4 Rg8 h8Q Rg7 Rh5 Ng8 Rh7 Rb7 Rd7 Nh7 Qg7 Rc7 Rd6 Re7 Rd7 Rf7 Rc7
2kR1Qn1/B3r3/1P3Br1/n1Bprqq1/nqP1b1N1/b4Q1K/Rq2p3/2R5 b - - 0 1 illegal: No possible last move, all moves rejected
2r1bK2/5R2/1PRrp1QR/q1qb1pnb/QkB1B1P1/2N1q1rn/8/2B3b1 b - - 0 1 legal: proof: d4 b5 h4 c5 f4 cxd4 a4 g5 axb5 gxh4 e4 e6 Nc3 Ke7 Na4 Ke8 Nc5 e5 Ne6 exf4 e5 Be7 Nc5 Bf8 e6 Qc7 e7 Qd8 Ne6 dxe6 Qd3 Kd7 Qf3 Ke8 Qd1 Kd7 Ke2 Kd6 Kd3 Kc5 Ke4 a5 Ke5 h5 e8B f5 c4 a4 g3 h3 b6 a3 b3 h4 b7 h2 Nh3 f3 Be3 a2 Rc1 a1Q Ng1 f2 Bg5 d3+ Rc3 d2 Qe2 d1R Bc6 h3 Qf3 Rd6 Qh5 Qa3 Bd3 f1Q Qd1 Ne7 Kf6 Na6 Kf7 Qda5 b8R Qe2 Bf3 Bd7 Re8 Nd5 Bfe4 Qe3 Re7 Nf4 Ne2 Kb4 c5 Rg8 c6 Rc8 c7 Nc5 Bc4 Bg7 Rc1 Bd4 Nc3 Rg6 Bh6 Be8+ Kf8 Rg4 Rf7 Rg7 Rg1 h1B Rg2 Rg5 Rh2 Bf3 Rh1 h2 Rc2 Ra8 c8Q Bh5 Qd7 Rb8 Qg4 Rc8 Rcc1 Rg7 Qg6 Nh3 Rc2 Qg1 Bc1 Qe3 Ba8 Ne4 Qa4+ Kc5 Bb7 Neg5 Be4 Q3b4 Re1 h1B Rh2 Qbb5 b4+ Kb6 Ree2 Qc5 b5 Bg2 Rc2 Bgf3 Bed3 Bd5 Be4 Qd2 Rg2 Bg1 Re2 Qde3 Rh2 Qcd4 Rh1 Kc5 b6 Qe5 Qa1 Kb4 g4 Rh7 Rf6 Ra7 Rf7 Qac5 Qa2 Ra3 Qa1 Rb3 Qa2 Qa5 Qa4+ Kc5 Ne2 Q5d4 Bf3 Nf4 Rb7 Qed3 Rh4 Nfh3 Rf7 Qdd2 Bh1 Rg3 Be4 Q2e3 Bcd3+ Qdc3 Qg8 Bg6 Rh6 Bh5 Qg6 Qc4 Nc3 Qcb4 Nb1+ Kd4 Rc6 Qc5 Nd2 Kc3 Bc4 Qca5 Qd1 Qbb5 Nb1+ Kb4 Nc3 Qbc5 Qa4+
2n2bNQ/1Nr1p3/1QPnR1b1/7n/1P2q1kq/rBRp4/2N1R3/q2b2Kb b - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Kf2 a5 c4 d5 h4 Kd7 b4 Ke6 h5 Kf5 g7 f3 b6 a4 c5 g4 b7 e3+ Kg3 d3 Kh2 e2 h6 e1Q h7 d2 c6 g3+ Kh3 a3 Be2 g2 Kh2 d4 Bd3+ Kg4 Bb5 a2 Bc4 d3 Qa4 d1B Qa3 f2 Nf3 g1N Nbd2 f1B Bb5 Qd5 Nb3 Bg2 Qb2 Ra3 Nc5 Nd7 b8Q Nb6 Bc4 Ne2 Rc1 a1Q Rc3 Nf6 g8N Nh5 Nd4 Bf5 Nc2 Neg3 Nb7 Ne4 Bb3 Qh4+ Kg1 Bg6 Rh2 Bh1 Re2 Nd6 Qa7 Nbc8 Qb6 Kg3 Nh6 Rg8 h8R Qde4 Rh7 Rh8 Ng8 Kg4 Rh6 Rh7 Bc4 Rf7 Bd5 Rf5 Bb3 Rfa5 Nc5 Ra7 Nb7 Be8 Re6 Bg6 Nd8 Rc7 Nb7 Nf5 Qc1 Nfd6 Qh6 Na7 Qh7 Nac8 Qh8
7b/Q1p2R1q/2n1B3/b3BnKn/N1Q5/Pkr2r2/2pRqP2/r1RqB2q b - - 0 1 illegal: No possible last move, all moves rejected
3Q1N2/Pp2PB2/bn2Q3/k1Bbrb1R/r1p4q/1n3r1r/2n1q1Q1/2RB2K1 b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 gxf4 b4 a5 g5 axb4 Nc3 e5 Nb5 Bh6 g6 Bg5 Nd4 e4 Ndf3 exf3 hxg5 Qe7 Rh5 Qf6 Rh1 Qd8 Kf2 Kd7 a4 Kc6 e4 Kb6 d4 h5 e5 f5 e6 c5 d5 b3 d6 h4 d7 b2 g7 b1R g6 c3 Qd5 c2 Ba3 c1N Rh3 Nc6 Rh1 h3 Qa2 h2 Bb4 Nb3 Nh3 Nf6 g8Q Re1 g7 Nd5 Rc1 Re5 Ng1 Rh3 Qh7 Ncd4 g8B Nc2 Qg6 Qh4+ Qg3 Ra6 Ba3 Ka5 d8Q+ Nb6 Ne2 Ra7 Rg1 h1B Bg2 Ra8 Kf1 f2 e7 Bd7 Bc6 Bd5 Rh1 Ra7 Qf3 Bc8 Kg2 f1R Nd4 Bce6 Qe4 Rff3 Kg1 Re3 Bb5 f3 Qa1 f2+ Kg2 f1B+ Kg1 f4 Qf5 f3 Rd1 Qh8 Qf6 Rh7 Bf7 Bf5 Qfd6 Ra8 Rh6 Rc8 Ne6 Be2 Nf8 f2+ Kh2 f1Q Qe6 Qf3 Kg1 Qe4 Qc1 Rf3 Qg5 Rc7 Rc1 Qd3 Bb2 Kb4 a5 Qd2 a6 Ka5 a7 Bf1 Rg6 Rhh3 Be2 Qh4 Bd1 Ba6 Rh6 Qe2 Qg2 Rc8 Bd4 Rc6 Qed7 Rg6 Rh5 Rg4 Bf2 Ra4 Qe6 c4 Bc5
1bK1b2q/p3Q3/B1Pqr2B/4q1B1/N2k2R1/1P1n1R1p/r4R2/b1r1r1nQ b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Nc3 b5 axb5 gxh4 Qb3 dxc3 Qc2 Qa5 Qd1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 d5+ Kd4 h5 g4 h3 e4 h4 b3 c2 b6 h2 c5 f3 c6 f2 b7 Qe7 Bh6 c1B Qe2 Bb2+ Kd3 Ke5 g5 f5 g6 d4 Kc4 f4 Kb5 f3 g7 d3 Nh3 d2 Ng1 d1Q Qd2 Na6 Ra4 Nb4 Be3 Nf6 g8Q Nh5 Qg2 Ng3 Ka5 Ba1 Ba6 f1R Qe1 f2 b8B+ Qdd6 Bh6 Bd7 Ne2 Nd3 Nc3 Ne2 Rb4 Be8 Na4 Bg7 Bc7 Qg5 Bd8 Ng1 Qe2 Qh5 Bdg5 Rc1 Qh3 f1R Qhg2 Ke6 e5 Rfe1 Rg4 Kf5 e6 Bge5 e7 Bf4 Qef3 Ke5 Qge2+ Kd4 Qe6 Rf8 Qd7 Rf6 Qc7 Rfe6 Qb7 Bg6 e8R Rd8 Rf8 Be8 Qe7 h3 Bc8 Qe5+ Ka6 Rd5 Kb7 Ra5 Rf5 Qg6 Qg2 Qh8 Rf6 Qe4 Rf7 Bb8 Rf3 Ra6 Nc3 Ra2 Na4 Ne2 Rhf1 h1Q R1f2 Qh2 Qh1 Qd6 Bd7 Ng1 Kc8 Rf6 Bf5 Re6 Bh7 Qef4 Be4 Qg3 Bd5+ Qgf4 Bc4 Qe4 Ba6 Qef4 Rgg3 Qfe5 Rg4+
2NrqNbb/rB2r3/1NR1Pbb1/2Q4n/1n2QpK1/p2B3B/bP3k2/2b5 b - - 0 1 illegal: No proof kernel
K1Q1nRR1/1p2N1r1/2B1bn2/B1P2rpk/1nP5/1n3r2/R2qnn2/Q5Qb b - - 0 1 legal: proof: f4 c5 b4 cxb4 g4 h5 f5 hxg4 f6 a5 c3 exf6 Na3 f5 Nb1 f4 Na3 Bc5 Nb1 Bd4 c4 Bc3 dxc3 a4 Nd2 Ra7 Nb3 axb3 Kd2 Ra4 Ke1 Ra8 Kd2 g5 Kd3 d5 Kd4 f5 Kc5 Kf7 h4 Kg6 a4 b2 e4 b1N a5 d4 a6 b3 a7 d3 e5 g3 e6 d2 e7 g2 e8R b2 Qc2 d1N Ne2 g1N Re5 f3 Bh3 f2 Bf1 Qd2 Kb6 Na6 c5 Nc7 c4 Rh7 Ra4 Rg7 Bg2 f1B Nd4 Ne2 Nc6 Nf6 Re8 Nf2 Ne7+ Kh5 Qd1 f4 Ra2 f3 Rf8 Be6 Rg8 Rb8 a8Q Nbc3 Ka7 Rf8 Qc8 Nce8 Ka8 b1N Bb2 Ncd5 Bc3 Rff7 Ba5 Nb4 Rh3 Rf8 Bh1 Bg2 Qg1 Qd5 Rg3 Nd2 Rg4 Nb3 Rf4 Qd2 Rf5 Kg4 h5 Rff7 h6 Kh5 h7 N6e4 Rf4 Rf5 Bb6 N4f6 Bd8 Nd1 Bb6 f2 Ba5 f1R Rf3 Nf2 Rf4 Bh3 Bc6 Bg2 Rf3 Bh1 Rf4 Rc1 Rf3 Rc3 h8Q+ Rh7 Rf4 Rf3 Qg7 Nfd5 Q7a1 Rg7 Rd4 Ndf6 Rd8 Nd6 Rdf8 Nde8 Qb2 Qd7 Qbb1 Qd2 Qa1
1n2b2n/2k1b3/1R1NQ3/3K2P1/Q1RB1bP1/1q2p1n1/b4pBr/Rr1Qnb2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 dxe3 g4 h5 f3 a5 Nc3 axb4 Nce2 g5 f4 h4 Ng3 hxg3 fxg5 Bh6 Rb1 Bg7 Ra1 Bf8 Ke2 f5 Kf3 e5 h4 d5 a4 Kd7 c4 b5 c5 b3 c6+ Kc7 h5 b4 a5 e4+ Kf4 d4 Ke5 d3 h6 e2 h7 e1N a6 b2 a7 b1B Be3 d2 Qc2 d1N Qb3 f4 Qb2 b3 Bc4 g2 Bd2 f3 Qc1 e3 Bc3 f2 Ra5 b2 Ra1 Bd7 Bb4 Nc3 Bd5 Ne4 Nf3 g1B Bc3 Bd3 Bd4 b1B Nh4 Ne7 Nf5 Ba2 Rh6 Be8 Nd6 Ng3 Bg2 Bh2 Qd1 Bf1 Rf6 Qc8 Rg6 Qb7 Rh6 Rg8 h8Q Qb3 Qf6 Rh8 Qe6 Rh7 Nc4 Ng6+ Kd5 Nh8 Rf6 Nd7 Rg6 Rb8 a8Q Be7 Qa4 Nh5 Rh6 Bf4 Rf6 Ng3 Rg6 Kc8 c7 Rh2 Rh6 Rb4 Rf6 Kb7 c8R Nb8 Rc6 Bfd6 Rb6+ Kc7 Rf5 Bf4 Re5 Qb2 Re4 Rb3 Nd6 Qc3 Bc5 Rb1+ Rc4 Qb3 Bd4+
1Qn3Kb/pn5B/1rrqn1P1/N1b3Q1/1B2bQPr/1N1RB3/1p2b3/3k3n b - - 0 1 legal: proof: b4 c5 d4 cxd4 h4 f5 a4 b5 e4 bxa4 Ra3 fxe4 Rb3 g5 hxg5 axb3 Kd2 Kf7 f4 Ke6 g4 Kd5 g6 e5 c3 h5 b5 e3+ Kd3 e2 f5 e1B f6 h4 b6 b2 f7 e4+ Kc2 h3 Kb3 h2 b7 d3 c4+ Kd4 c5 d5 c6 e3 c7 e2 Qc2 d2 Bg2 Ke3 Be4 d4 Kc4 d3 Bf3 Bc5 f8Q Rh4 Be4 Ne7 Na3 Nd7 b8B Bb7 Bc6 Nc8 Kd5 Qe7 Qf1 Nf8 Nf3 Ne6 Nd4 Bf2 Qa4 e1N Nb3 Qd7+ Ke5 Qd6+ Kf6 Bg3 Kf7 Be5 Be4 Bh8 Qf6 Ke2 Bd5 d1R Qaf4 d2 Nc4 Nd3 Kg8 Bc6 Rg1 h1N Rg3 Rf1 Qd8 d1B Nca5 Re1 Bc4 Be4 Be3 Rf1 Rf3 Ke1 Qdg5 Be2 Rg3 Kd1 Bd5 Bcd4 Rf3 Ndc5 Rh3 Nb7 Rg3 Nb6 c8Q Bc5 Bc7 Rf2 Qb8 Nc8 Bb6 Rf3 Bd2 Rc3 Rd3 Ba3 Bbe3 Rc6 Bc4 Bc5 Bb4+ Kc2 Qc7 Rb8 Bd5 Nbd8 Bc4 Rbb6 Qb8 Nb7 Kf7 Nd4 Ke8 B4f3 Bg8 Ne6 Kf7 Bg2 Bh7 Be4 Nd2 Kc1 Kg8 Kd1 Ndb3+
QN4B1/5B1p/N2bq2k/b1R1r3/n5Q1/b2pqQn1/nPr2N1P/b2K3n b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 d5 a5 d3 a6 d4 Nd2 Be6 Rb1 Bd5 Ra1 bxa6 Nb1 a5 Bf4 a4 Bg5 Ba2 Bc1 Bd5 exd5 g6 f4 g5 f5 f6 Bf4 gxf4 Ra3 Qa5+ Rc3 Qd8 Rc6 Qc7 Re6 Qd8 Re5 fxe5 Qf3 e4 Qh5+ Kd7 Qd1 Ke8 g4 Kf7 c4 Kg7 c5 e5 g5 a5 c6 a3 c7 f3 c8Q d2+ Kf2 e3+ Kg3 a4 d6 f2 Kf3 e2 d7 e1B Ke2 e4 g6 e3 f6+ Kh6 f7 a2 g7 a1Q Qc7 a3 Qc8 d3+ Kf3 a2 Be2 f1N Qc7 Bd6 f8Q Nf6 Qcc2 Nh5 Qc3 Na6 Qa5 Nb4 Qe8 Qe7 g8B Nfg3 d8N Qe6 Nh3 Rc8 Na3 Qc1 Qaa4 a1B Nc2 Na2 Nb4 Rc2 Na6 Bf2 Qf1 d1N Qg4 Ndc3 Nc6 Na4 Qa8 Ba3 Bd1 e2 Ncb8 Bfc5 Nf2 e1B Bf7 Rc8 Rg1 Re2 Bb3 Ba5 Qg2 Qg5 Rc1 Bd6 Rc5 Nh1 Bg8 Re5 Q2h3 Qe8 Bbf7 Qe6 Kg2 Qe3 Qhf3 N5g3 Kg1 Ne2+ Kf1 Rc6 Rc3 Rc4 Ke1 Neg3+ Kd1 Rc8 Rc5 Rc7 Rd5 Rc2 Rc5
r1n2Qb1/1Bk1p2r/4r2r/1N1p1Qb1/5nq1/nP1nB1q1/2BP2N1/K4Q1R b - - 0 1 legal: proof: Nf3 b5 Ng1 c5 Nf3 b4 Ng1 b3 axb3 Qc7 Ra6 Qb6 Ra1 Qd8 e4 f5 Nf3 fxe4 Ba6 c4 Ng1 c3 Bf1 cxb2 g4 g5 f4 gxf4 Ra5 Nh6 Rh5 Ng8 g5 h6 Rh4 h5 Rg4 hxg4 h4 d5 c4 Kd7 h5 a5 h6 f3 c5 a4 g6 a3 g7 g3 h7 f2+ Ke2 a2 c6+ Kc7 Ke3 a1R Kd4 g2 Kc3 e3 Rh3 e2 Na3 b1N+ Kb2 e1N Qc2 Qd6 Bb5 f1R Qf5 Nf6 g8B Be6 Rh1 Nh5 Nh3 g1Q Ba6 Nf4 Bb7 Bh6 Qd3 Rf2 Qf1 Rh2 Bf7 Qg3 Bg6 Nd7 Bc2 Qg4 Nb5+ Kb8 Nd4 R1a6 Nb5 Na3 Ka1 Bg8 Bb2 Ned3 Bd4 Bg5 Bc5 Nb6 Be3 Nh5 Nf4 Nc8 Ng2 Qdg3 Nc3 Kc7 Nb5+ Kd8 c7+ Kd7 Na7 Nhf4 Nb5 Rhh6 Nd4 Na7 c8Q+ Kd6 Qf5 Kc7 Ne2 Rae6 Nc3 Bf7 Ne4 Nc8 Nd6 Rf8 h8Q Bg8 Qg7 Rf7 Qf8 Rfh7 Nb5+
qQ2r1b1/2PB1qq1/Rnn3R1/qk2BR1N/1nrQp3/P1n4b/3p4/6QK b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e3 axb4 Nc3 e6 Ne4 fxe4 g5 Bd6 f5 Bf4 g6 hxg6 exf4 g5 Bg2 g4 Bh3 Qg5 Bf1 Qd8 Kf2 g5 Kg2 d5 h4 Kd7 c4 Kc6 h5 b5 h6 d3 a3 g3 h7 d2 f6 e5 f7 e3 f8Q e2 f5 e1Q c5 e4 f6 b3 f7 b2 Qg7 b1N f8Q b4 Qge7 b3 Ra2 g4 Qf5 b2 Rh3 d4 Qg6+ Nf6 Ra1 d3 Rh2 Re8 h8R Ra4 Qb3 d1N Nf3 Qea5 R8h6 d2 Qgg8 Nbc3 Qg6 b1B R2h4 Rc4 R4h5 Na4 Rf5 Nb6 Qa7 Nc3 Nh4 Ba2 Kh1 Qe7 Bh3 Qf7 Bb2 g2+ Kh2 Be6 Rg1 Nfd5 Qf6 Nb4 Qd4 Kb5 Ng6 Bc8 Nf4 Nc6 Nh5 Be6 Qd1 Bd7 Qb8 Qa8 Kg3 Bc8 Kf2 g3+ Ke3 Na7 c6+ Qd5 c7 Ka6 Qe5 Rc5 Qd4 Ncb5 Qc4 Bb3 Bf6 Nd7 Qd4 Nc3 Re1 g1Q+ Rf2 g2 Rh7 Qf1 Rh6 g1Q Be5+ Ka5 Rb6 Qg7 Rf3 Qb5 Kf2 Nac6 Rg1 Ka4 Rg6 Qba5 Ra6 Nb6 Kg2 Kb5 Kh1 Qdd7 Qe3 Bg8 Qd4 Rc4 Q1g1 Qdf7 Rf2 Bg4 Rff6 Be2 Rf4 Bf1 Bd7 Bh3 Rf5
1n3n1Q/1NKQ1BNq/1pb2b2/B2N1r2/b2Rb1nP/1k3p1P/3b4/1n2nQ2 b - - 0 1 legal: proof: a4 a5 f4 e5 d4 exf4 b4 axb4 Ra3 c5 Rg3 cxd4 Rg5 Ra6 Rg4 h5 g3 hxg4 h3 Rh4 gxh4 Rh6 Bd2 Rh7 Bc1 Rh8 Kd2 Ke7 Kd3 Kd6 Kc4 f5 Kb5 Kd5 a5 g5 c3 g3 e3 b6 a6 b3 a7 g2 a8Q+ Bb7 Qa7 b2 Qe1 f3 Rh2 f2 Nf3 g1N Na3 b1N Nd2 d3 Qa6 g4 Qa8 g3 Be2 f1N Qf2 g2 Ne4 f4 Nd6 d2 Bb2 d1B Ne8 Be7 Nc4 Qc7 Qa7 Bc2 Na5 Nf3 Ng7 Ne1 Bh5 g1B Rh1 Ba8 Nb7 Nh2 Qf1 f3 Bg6 Rh6 Bf7+ Re6 Bc1 Ng4 Bd2 Be4 Qa4 Bf6 c4+ Ke5 c5 Kd5 c6 Ne7 Rh2 Ng6 Ba5 Nf8 Rb2 Bh2 Rb4 Bf4 Rc4 d6 Qa1 Qe7 c7 B4g5 c8N Bh6 Bg6 Re5 Ra4 Rf5 Rd4+ Ke5 Qc3 d5 Bf7 Qc7 Ne7 Bf4 Rd2+ d4 Nd5 Qe7 Qc8 d3 Rd1 d2 Qd7 Na6 Kc6 Nb8+ Kc7 B4g5 Rc1 d1B Rc4 Ba4 Rd4 Bf4 Nc3 Bec6 e4 Bd2 Nd5 Qe6 Bh5 Qg8 Bf7 Qh7 Nc3 Kf4 e5+ Ke3 e6 Be4 e7 Bec6 Rd6 Be4 Nd5+ Kd4 Qf2+ Kc4 e8Q Kb3 Qf1 Ng6 Qh8 Nf8 Nd8 B8c6 Nb7 Ka2 Nb4+ Kb2 Rd4 Kc3 Nd5+ Kc2 Bh5 Kb3 Bf7
2Kn1B1r/3n3n/5R2/1pNN3p/BBrkQ1rn/r1bb1QPP/6Nr/4n3 b - - 0 1 legal: proof: e4 d5 c4 dxe4 b4 e5 f4 e3 b5 a6 Nh3 axb5 Ng1 bxc4 Be2 c3 Bb5+ Qd7 Bf1 Qd8 a4 g5 Ra2 Qd3 Rb2 Qd4 Rb5 e4 Rf5 Qe5 fxe5 Ra5 Rf2 Ra8 Rf4 gxf4 Ke2 Ke7 d4 Ke6 a5 Kd5 h3 b5 g3 c5 e6 h5 e7 f5 e8N c2 a6 c4 a7 f3+ Ke1 f4 Qd3 e2 Kd2 e1N Kc3 e3 Ng7 e2 Ne6 f2 Nd2 f3 Bg2 f1R Ba3 c1N Nc5 Nb3 Kb4 c3 Ne4 f2 Nf3 c2 Nh4 c1R Bf3 Bg7 Ng2 Nd7 Qc3 Na5 Nf6+ Kd6 d5 Nb7 Qc4 Ke5 d6 Nd8 Nd5 Ngf6 Ka5 Nh7 Bb4 Bb7 Be4 Nf3 Bc2 e1N Ba4 Nh4 Rg1 Bc6 Ka6 Rc3 Qb3 Rc4 Qf3 Kd4 Rh1 Rg1 Rh2 f1R Rh1 Rb8 a8Q Rf2 Rh2 Ra2 Ka7 Ra3 Rh1 Ne5 d7 Rc8 Rh2 Rh1 Kb6 Rb8+ Kc7 Rb7+ Kc8 Ra7 Nf6 Be4 Nd5 Bd3 Qc6 Ra6 Qb7 Rg6 Qa8 Ndc6+ d8B Nd7 Qb7 Rg4 Qa8 Ndf8 Be7 Nd7+ Bf8 Nd8 Qb7 Rf1 Rh1 Rf2 Rf1 Rfc2 Qd1 Rd2 Rf6 Rb2 Qf3 Rba2 Nge3 Rh2 Ng2 Bh6 Qb8 Bd2 Qd6 Bc3 Qe6 Be2 Qef5 Bd3 Q5e4+
5kq1/K1b1r2n/2r2PRN/2Q3B1/3Q3q/Pq1qpRN1/pnR5/N1rnr3 b - - 0 1 illegal: No proof kernel
2rR3R/2P1bp2/4k2q/1qQ1rn1r/NN2q3/K1pP3Q/1Rrb4/1bQ2Bb1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 hxg4 c4 e5 Bb2 exf4 Bd4 d6 Be3 Nc6 Bf2 Nd4 Be3 cxb4 c5 b3 c6 b4 Bf2 Nb5 Bc5 dxc5 axb5 Be7 Nc3 Bd6 Nb1 Bf8 e4 Ke7 h4 g5 c7 a5 b6 g3 b7 b2 b8R f3 e5 g2 h5 f2+ Ke2 c4 e6 b3 h6 c3 h7 g4 Ke3 g3 Bc4 f1R Ra2 a4 Rh6 a3 Rh3 Re1+ Be2 Nh6 Rh2 Qd6 Nh3 g1B+ Nf2 g2 Qc1 Nf5+ Ke4 Kf6 e7 Ke6 e8Q+ Be7 Nd1 Be3 Qb5 g1B Bf1 Ba6 Rg8 Rc8 Qc5 Be2 Rd8 Bd3+ Kf3 Bc2 d3 Bd2 Rh5 Re5 Rh4 Qd4 Rh1 Qh4 Rh2 Qh6 Rh1 Rg8 h8Q Rg5 Rh2 Rh5 Rh4 Rd5 Ke2 Re5+ Ne3 Be1 Nd2 b1R Ne4 b2 Nd5 Bd2 Nb4 Ra1 Qh7 b1Q Rh3 Qb3 Rb2 Bb1 Rh2 Qc4 Kd1 Qb5 Qh8 Ba2 Kc2 Bb1+ Kb3 a2 Qd1 Bc2+ Ka3 Rc1 Rh4 Bb1 Qh7 Rc2 Qc1 Qg7 Qh6+ Qg6 Qhe3 Qh6 Qh3 a1Q+ Na2 Rg5 Qd1 Qg7 Rhh8 Rh5 Nd6 Qh6 Qe1 Rc1 Nc4 Bc2 Nb6 Qb1 Na4 Qb7 Rb4 Qe4 Rb8 Qb6 Rb7 Bb1 Rb8 Qa5 Rb2 Qb5 Nb4 Rc2 Qc1
3R1K2/3r1BQ1/1Bp3q1/2NbQk1N/2b2pnr/7n/Pr2pqPq/b4N1Q b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h3 axb4 h4 gxh4 f4 e5 e4 exf4 Na3 Kd7 Rb1 Ke7 Rb3 Ke8 Re3 fxe3 Ke2 Kd7 Kd3 f5 Kd4 b5 Ke5 h5 d4 f4 d6 b3 d5 c6 Nf3 b4 Nh2 h3 Bb5 b2 Nf1 b1R Qd4 b3 Rh2 h4 Qd2 b2 Be2 Ba6 Qd3 Nh6 Qd4 Qe8+ Kf6 Nf7 e5 Ra7 Bh5 e2 Ng3 Ng5 Be3 Bc4 Bf7 Bg7+ Kg6 Rh7 Nc2 Bh8 Rh1 h2 Nh5 h3 Rd1 h1Q Bg1 h2 Ne3 Bg7 Nf1 Nh3 Be3 Qg1 e6+ Kd8 d7 Ke7 d8N h1Q Rd2 Qhh2 Nb7 Nd7 Nc5 Nf6 Bf2 Kd6 e7 Ng4 Rd3 Bh8 Qg7 Rd7 Bd4 Qg8 e8Q Qf2 Qe4 Rc1 Rd2 b1B Qf5 Be4 Rd1 Kc7 d6+ Kc8 Be3 Bed5 Qe5 Rb1 Bd4 Rb2 Rd2 Ra7 d7+ Kd8 Nd3 Qe8 Bb6+ Rc7 Nc5 Qe6+ Nf6 Rh4 Rd3 Qe8 Nh5 Qe6+ Kh7 Ke7 Kg8 Ra7 Qd4 Kd6 d8Q+ Rd7 Kf8 Qf5 Qdg5 Qg6 Qh7 Be5 Qgh6 Bf6 Q6g7 Be5 Qc3 Bf6 Rd4 Ke5 Qhh8 Kf5 Qe3 Qfg3 Qg1 Qe3 Qh1 Qf2 Qgh6 Be6 Q6g7 Rc2 Rd1 Re7 Rd3 Ba1 Qc3 Rb2 Rd8 Rd7 Qhg7 Bed5 Qce5+
1b2q3/4Q2Q/1PR1K2p/b7/kB1pb1Rn/1Rr3Pb/n1BpQ3/1bNr1r2 b - - 0 1 legal: proof: h4 e5 f4 exf4 e4 b5 a4 g5 Nc3 gxh4 Nd5 c5 d4 cxd4 Ne3 fxe3 axb5 Qe7 Bd2 Qf6 Bc1 Qd8 Ke2 f5 Kf3 d5 Kf4 Kd7 Ke5 a5 b4 f4 c4 h6 g3 h3 b6 Kc6 c5 e2 b7 Kb5 c6 f3 c7 f2 Bb2 d3 Qb3 e1B Be2 f1B Nf3 a4 Rb1 a3 Qc2 h2 Bc1 a2 Bf4 a1R Bd1 d4 Nd2 Bch3 c8R R8a3 Rb3 Na6 b8Q+ Ka4 b5 Nb4 b6 Ne7 Rc6 Na2 Qb7 Nf5 Qh7 Bd6+ Ke6 Rf8 e5 Bb8 Qb2 Rf7 Bc2 Rd1 Bg5 Be2 Be7 Qe8 Rf1 h1B Rf4 Be4 Rg4 Qd8 Bb4 Nh4 Nf3 Bc3 Ne1 d2 Nd3 Rff1 Nc1 B2d3 Qb1 Ba1 Qb2 Qf8 Qc3 Bb2 Qc5 Bc3 Qce7 Qh8 Kd7 Qg8 e6 Qg6 Qef7 Qg8 e7 Qd8+ Ke6 Qe8 Bd6 Ba5 Bb4 Qf8 e8Q Qg8 Qe7 Qe8 Bb1 Bc2 Qf2 Bcd3 Rb2 Rc3 Rb3 Bf3 Qh2 Bg6 Bf5 Be4 Qe2 Bb1 Bd3 Be4 Bc2
4n3/1q2pr1p/kR3r1Q/brQN3n/K2P1r1B/b4N1p/3nP3/1RQR2r1 b - - 0 1 illegal: No possible last move, all moves rejected
5r2/K2p4/1Pb1r2P/p7/Nrn2k1r/N5QQ/B2Nnn1p/1B1rRqbB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 g4 h6 b4 Ne7 Rh4 Ng8 Be3 Qf6 Bf2 Qb6 Rh1 Qa5 Bh4 Qd8 Ra3 Rh7 Rg3 gxh4 g5 Rh8 g6 Qg5 Rg2 Qd8 Rg5 hxg5 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 a5 g7 f5 c3 f3 b6 h3 Kb5 g4 c4 f4 b7 g3 c5 d3 c6 f2 c7 g2 Kb6 f3 b5 d2 Na3 h2 Qa1+ Kf4 e5 d1R e6 Qf6 Qb1 Nh6 g8B Nc6 b8Q Ne5 Qb2 Bb7 c8N Bc6 e7 Ng4 e8B Qf5 Bd3 f1R Ba2 f2 Bg6 Rfe1 Nf3 f1R Qc3 g1N Nd2 Ne2 Bdb1 Nf2 Qh3 Bh6 Qc7 Rb8+ Ka7 Bf8 Bh7 Bc5+ Nb6 Rhf8 h6 Qf6 Qb7 Nc4 Bhe4 Rg1 Bf3 Rg4 Rf1 Qf5 Bh1 Rh4 Qc8 Qd3 Qe8 Qf3 Qg6 Qg2 Rg1 Qf1 Qgd3 Nc1 Qg6 Re6 Qgg2 Ne2 Qg7 Qg2 Re1 Qf1 Qgc3 Ng4 Qcd3 Bg1 Qg6 Nf2 Na4 Rf5 Qgg2 Rbf8 b6 Rb5 Qg6 Rb4 Qgg3+
2NkB2R/1pn2r2/n3QbP1/1B2Q2Q/r1r2B2/qR1r4/pp1bP2K/1r3b2 b - - 0 1 legal: proof: b4 d5 a4 c5 f4 cxb4 h4 e5 c4 exf4 c5 g5 hxg5 Qa5 Na3 Qxa4 Nc4 dxc4 Rh2 Qa6 Rh1 Qa2 Kf2 h5 g4 a5 Kg2 f5 d4 c3 d5 h4 c6 a4 c7 h3+ Kh2 a3 d6 f3 g6 f2 g7 f4 g5 f3 g6 c2 Qd5 b3 Qf5 b2 Qd3 Na6 Qd4 Rh4 Qb6 Rc4 Qe3+ Ne7 g8B Bg7 Bg2 f1R Qe5 f2 Bf4 c1B Nf3 Bd2 Nh4 Rb1 Nf5 f1R Bf7+ Kd7 Be4 Bf6 Bd3 Nd5 Ne7 Rbd1 Rc1 Qb3 Rc2 a2 Rc3 Qa3 Rb3 Ra7 Kg3 h2 Qh5 Rf2 Be8+ Ke6 d7 Rff1 Rg1 h1R d8Q Rb1 Kg2 Rh3 Rh1 Bd7 c8Q Ndc7 Qb8 Re3 Kh2 Bc8 Be4 Rd3 B4c6 Bd7 Ba4 Bc6 Qd4 Bg2 Nc8 Rff3 Bab5 Bf1 Nb6 Ke7 Qc8 Ra8 Qcg4 Ra7 Qde5+ Kd8 Nc8 Nc5 Qgf5 Raa4 Qfe6 N5a6 Kg1 Rd7 Rh4 Rfd3 Kh2 Rg7 Qf3 Rgd7 Rh8 Rf7 Qfh5
2br3b/QB1Q2Pr/n1R3qB/1K1B1n2/3p3p/4b1k1/2p2QP1/NR1r1nn1 b - - 0 1 legal: proof: c4 c5 b4 f5 d4 cxd4 e4 fxe4 h4 g5 hxg5 a5 Nc3 axb4 Qe2 bxc3 Qd2 Ra5 Qd1 Ra8 Ke2 Kf7 f4 Kg6 a4 Kf5 g6 Kg4 a5 b5 a6 h5 f5 e5 c5 d5 a7 b4 c6 c2 f6 b3 c7 e3 Kd3+ e2 f7 h4 Bg5 e4+ Kd2 b2 Ra6 b1N+ Ke1 d3 Be7 d4 Nf3 Rh7 Rc6 Nh6 Bg5 Qd6 Nd2 Nf5 Nb3 Kg3 Na1 Bg7 f8Q Nd2 Bh6 Bh8 g7 Na6 Qe8 Qg6 Qd7 Nc4 Rg1 Nce3 Kd2 e1N Qe2 Rb8 a8Q Nf3+ Kc1 Nd1 Qb7 Nde3 Kb2 d2 Ka3 d1R Ka4 Ra8 Rh1 Ng1 Qa7 Rb8 Qd2 Ra8 Be2 Nf1 Kb5 e3 Bc4 e2 Bd5 e1B Qe2 Bd2 Qf2+ Kg4 Rh3 Bc1 Rb3 Be3 Rb1 Bb7 Rc1 Rd8 Rb1 Bc8 Qd6 Be6 c8B Bd7 Qe7 Be6 Bb7 Bc8 Qe2+ Kg3 Qd7 Qe8 Qd2 Qg6 Qf2+
3n3k/2Pp1rrB/1PbbrNb1/1n3nB1/B1R2QK1/2q1p1Q1/6p1/3n2NN b - - 0 1 legal: proof: f4 f5 d4 h5 b4 g5 g4 c5 e4 cxd4 a4 gxf4 g5 b5 axb5 fxe4 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kf2 Kf7 h4 Kg7 c4 a5 g6 e5 h5 d3 c5 e3+ Kg2 a4 b6 a3 b5 e4 b7 a2 b6 a1N c6 d2 c7 g3 Kh3 e2 Kg4 e1R Nf3 g2 Bc4 Rh7 h6+ Kh8 Qb3 d1N Bb5 Rg7 h7 Bd6 Nc3 Nc6 b8Q Qf6 Ba4 Nc2 Rh4 Na3 Nd5 Bb7 Ng1 f3 Bg5 f2 Qf8 f1B Qg3 Qc3 Qff4 Nb5 Nf6 e3 Ne4 Nd8 Nf2 Bc6 Nh1 Re7 Rh5 Re6 Rh4 Kg7 h8N Ne7 Nf7 Nf5 Nh6 Bd3 Ng8 Rf1 Nf6 Rc8 Kh5 Kh8 Kg4+ Nh6+ Kh5 Qd2 Qff3 Ndf7 Ng8 Qc3 Rc4 Rce8 Qff2 Nd8 Kh4 R8e7 g7+ Kh7 Qff3 Bg6 Qfg4 Rff6 Q4f4 Nf5+ Kg4 Rf8 Nh6 Rff6 g8B+ Kh8 Bh7 Rg7 Ng8 Rff7 Nf6
rr1bk1r1/2Q5/BrP1p3/1N1B1Q2/n4R2/qq1p1r1P/1Qp2n1N/1bK3B1 b - - 0 1 legal: proof: e4 c5 a4 a5 d4 cxd4 c4 h5 g4 hxg4 Ra3 f5 b4 axb4 Rc3 bxc3 exf5 Qb6 Nf3 Qc7 Ng1 Qd8 f4 g5 f6 d5 h3 b5 c5 g3 c6 g4 f5 b4 a5 g2 a6 d3 a7 g3 Bh6 d4 Qb3 d2+ Kd1 Qa5 Nf3 g1R Qc2 g2 Qa2 b3 Na3 b2 Bf4 b1R+ Kc2 Rb6 Qb3 Na6 Be3 Nc5 Qb2 Nh6 Bc4 Ng4 Nh2 Na4 Bd5 Rf1 Nb5 Rf3 Rf1 g1R Bf2 Rg2 Bg1 Nf2 Kb1 Rab8 a8B Rgg8 Bb7 d3 Ba6 d1Q+ Qc1 Qb3+ Qb2 c2+ Kc1 Be6 f7+ Kd8 f6 Qab4 Re1 Q4a3 Re4 Bh6+ Rf4 Bg5 Be4 Bc4 Bd5 e6 Kd2 Re8 f8Q Rg8 f7 Ra8 Qfg7 Ke7 Qh8 Reb8 Qhe5 Kf8 Qc7 Bd8 Qh8 Qb1 Qhe5 Ba2 Qf6 Qbb3 Qb2 Bb1 Kc1 Bh4 Nd6 Bf6 Nb5 Bd8 Rd4 Kg7 f8Q+ Kg6 Qfd6 Kf6 Qe5+ Kg6 Qc8 Kf7 Qf5+ Ke7 Rf4 Ke8 Qc7
2q1Nr2/bk1r1pq1/1b6/n4R2/1QbP1bpB/RbpNN2P/3nQ3/2K1Q3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c3 exf4 c4 dxc4 b4 hxg4 b6 a6 b7 Be7 b5 Kd7 b6 Bc5 Bg2 Bf8 Bc6+ Ke7 Bb5 axb5 Nf3 Kd7 Ng1 Ke8 e4 Kd7 h3 Kc6 d3 g5 Kd2 b4 e5 b3 e6 b2 e7 f3 e8N f2 Qf1 g3 Rh2 g4 Ra7 g2 Ng7 c3+ Kd1 c2+ Kd2 Bc5 Ra6 Be6 Nf5 Nf6 Na3 b1Q Ng3 Bb3 Qe1 f1B Nh5 Qc8 Nc4 Ra7 Nf3 g1B Ra3 Qa1 Ne3 Rf8 Rf2 Qd4 Bb2 Ne4+ Kc1 Qg7 Bf6 Nd2 Bh4 Bd4 Qe2 Bc5 Ne1 Bd4 Rf4 Bc5 Nf6 Bf2 Kb2 c1B+ Kc3 Bg1 Rf5 Rd8 Nd1 Ba4 Rg5 Nb3 Kc2 Rf8 Qh2 Bf4 Rf5 Nd2+ Kb2 Na6 b8Q Nb4 b7 Kb6 Rh5 Nc6 Rf5 Na5 Qf2 c6 Qe5 Bb3 b8Q+ Ka6 Qh2 Rd7 Kc1 Ba7 Ne8 c5 Qb4 c4 Qg2 Bgb6 d4 c3 Qf2 Bb5 Qee2 Bd3 Ne3 Bdc4 Nd3 Kb7 Qfe1
r5Q1/2brbn2/8/1R2RqQ1/1nk3B1/p2rbp1K/2NqpPP1/NbR3Q1 b - - 0 1 legal: proof: e4 b5 a4 bxa4 h4 d5 b4 dxe4 b5 g5 Ba3 gxh4 Bb4 c5 Bxc5 a3 Bb6 Qd5 Bd8 Qxd8 c4 Kd7 d4 Ke6 b6 f5 b7 h5 c5 Kd5 c6 e5 c7 a5 Ke2 e3 Kf3 a4 Rh3 e2 Rg3 e1B Ba6 f4 Qe2 h3 Ra2 h2 Rg5 h1R Rg3 h4 Qd2 h3 Ne2 h2 Qc1 Bf5 c8R Be7 Qb2 Nc6 b8Q Rh7 Q2b4 Nh6 Rg7 Bd2 Nc1 Be3 Re2 a2 Nb3 a1B Qe1 Nb4 Rg5 Nf7 Na3 Bb1 Kg4 f3 Nc2 a3 Qg1 Qd7+ Kg3 Qf5 Rc6 e4 Bc8 Bb2 Nba1 Rg7 Re1 Bc3 Rb6 Kc4 d5 Be5+ Kh4 Bc7 d6 Rh7+ Kg3 Rg7 Rb5 Rh7 Rc1 Rg7 Qe1 Rg1 Bd7 h1Q Qg8 Qh6 Bc8 Rh1 Qg1 Rh5 Re5 Rh7 d7 Qd6 d8Q Qd2 Bd7 R5h6 Qge8 Rd6 Qg8 Rd3 Rh5 Bh6 Qg5 e3 Qdg8 e2 Kh4 Qg6 Bg4 Qf5 Kh3 Rg7 Qf6 Be3 Rg5 Rg6 Qfg7 Rgd6 Qh6 Rd7 Rb5 Qh7 Rge5 Qf5 Qhg5
b2qBQqr/rR5Q/B6P/1Kb2B1R/2n1q2N/3qb2p/1k2p1Pp/1Q4n1 b - - 0 1 illegal: No proof kernel
1q2qnB1/2Q1Rb2/qqbRp3/1B3nK1/3rp2P/3N1k1Q/rP3p2/B3Q2n b - - 0 1 illegal: Other
r1R5/QB4q1/2P1K1b1/pPbRp2N/2B1rpB1/2bqQ3/1b2k2n/1qRn4 b - - 0 1 illegal: No possible last move
2r3q1/1k1B1PNQ/3N1K1Q/n1pBnp2/n2BP3/p1qQ2bb/2n2Rr1/1b6 b - - 0 1 illegal: No possible last move
2R4R/1q2ppn1/N2N4/b2n1Q2/k1qbr2P/QR1p1q1r/5PQb/2q1B2K b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 h3 b6 Be2 c6 d5 cxd5 Bg4 dxe4 Bh6 Bb7 Bc1 e3 h4 Bd5 Be2 Be6 Bf3 Bh3 Bg4 hxg4 gxh3 Ra3 Qf3 Ra7 Qd1 Ra8 Kf1 d5 Kg2 Kd7 c4 Kc6 a4 g5 a5 b5 a6 e2 a7 e1B c5 b3 h5 g3 h6 b2 h7 b4 Nd2 Kb5 c6 b1Q c7 b3 c8R g4 Ra6 b2 Re6 d4 Rh6 d3 Rg6 Qc7 Rf6 Bg7 Rd6 Qc4 Ne2 Nc6 Rdd8 Nf6 Qc2 Nb4 Qd1 Nbd5 Ne4 Nh5 Nf4 Ba5 Qg1 Bd4 Bd2 Ka4 Be1 Ng7 Ne6 Qd1 Nd6 b1Q Nc7 Qb7 Na6 Rb8 Qf1 Qf3+ Kg1 g2 a8Q Qd1 Kh2 g1B+ Kg2 g3 h4 Rg8 h8Q Bh2 Qh5 Qe2 Kh3 g2 Qf5 g1Q Re8 Qg5 Qg2 Qgc1 Rf8 Qbc6 Rg1 Rb4 Qa7 Qb7 Rfe8 Rh8 Rg8 Rh6 Rh8 Rg6 Rf1 Bhe5 Qc5 Rg3+ Kh2 Rh3+ Kg1 Bh2+ Kh1 Qf4 Bc3 Qh6 Rb1 Qc1+ Be1 Qf3 Rb3 Rb6 Ne4 Re6 Nd6 Re4 Qa3+
2KQ1b2/1Qp2rkQ/r2bB1n1/1P4n1/2q1p2N/1Nnp2RN/1RP1q3/2n4b b - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 e5 g5 exd4 g6 h6 Bd2 Bb7 axb5 fxe4 Bb4 Ba6 Be7 Bc8 Bg5 hxg5 Kd2 a5 h4 d5 b4 f3 g7 Kf7 h5 a4 b6 a3 b5 f2 h6 g4 h7 d3 Kc3 g3 Kd4 g2 Ke5 d4 b7 d2 Qe2 d1N Qc4+ Qd5+ Kf4 a2 Qc3 d3 Qe1 Nd7 b8Q Nc5 Qe2 Bh3 Qb7 Nc3 Nd2 Nb3 Rb1 a1B Rb2 Nc1 Nb3 Qc4 Ke5 Ne7 g8N Ra3 Nh6+ Kg7 Qh5 Ra6 Be2 f1Q Bg4 Rg8 Be6 Qe2 Rh2 Bg4 Rh3 Bf3 Rg3+ Ng6+ Kf5 Bd6 Nh3 g1N h8Q+ Kf8 Na5 Bh1 Nb3 Nf3 Kf6 Ng5 Nf5 Ba3 Nh4 Bd6 Q8h7 Rh8 Qd7 Rh6 Kf5 Rh7 Qd8+ Kg7 Bd5 Nf3 Ke6 Ng5+ Kd7 Bf8 Be6 Bd6 Ra2 Bb2 Kc8 Bba3 Rb2 Bf8 Bg4 Bad6 Bf5 Kg8 Bg4 Rf7 Be6 Kg7 Qh7+
bN3Rb1/nQ4n1/bB2Pb1k/b4P2/bQ1p2B1/4Rp1p/R6K/1rqBr3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 hxg5 a5 Be3 axb4 Bd2 Bg7 Bc1 Bf8 g4 f5 f4 e6 Nc3 fxg4 f5 e5 Nd5 Bg7 Nf4 exf4 Nh3 Bh6 Ng1 Bf8 Kf2 Kf7 Kg2 Kg7 a4 h5 c4 d5 e4 b5 g6 g3 e5 d3 c5 f3+ Kh3 g2 c6 h4 a5 d2 a6 b3 a7 b2 c7 b1B Ra4 b4 Bd3 b3 Bf1 b2 Qe1 d1B Qf2 Be4 Be3 b1B Kh2 h3 Bd3 Nf6 Qe2 Be7 Bb6 Nc6 Bc2 Rb8 a8R Ne8 Ra2 Kh6 g7 Ba6 g8B Ng7 c8Q Na7 Bf7 Re8 Qe1 Bf6 Qb4 Qc7 Ne2 Qc3 Bb3 Qc1 Re1 Rb7 Bh5 g1B+ Kh1 Be3 Nd4 Bd2 Nc6 d4 Kh2 Bd5 Ba4 Bg8 Re3 Be4 Bg4 Be1 Nb8 Bc3 Qb2 Ba5 Qb4 Bc6 Qc7 Bdb3 Qd7 Bbd5 Bd1 Ba4 Nc6 Re7 Rf8 Re8 Nb8 Bdc6 Bc5 Rb5 Bb6 Ba8 Qc4 Rb1 Qb7 Rc8 e6 Rc5 Re8 Re5 Qb4 Re4 Rf8 Re5 Rd3 Re1 Re3
2k1n1b1/1Qpn4/1r2PBb1/2p2R1Q/rNbbqR2/3pB3/1P6/bb1K1BQ1 b - - 0 1 legal: proof: h4 e5 f4 g5 c4 gxh4 a4 d6 d4 Qf6 d5 Qxf4 Na3 Qf2+ Kd2 b6 Nc2 b5 c5 dxc5 Nd4 exd4 axb5 Bg4 Rh3 Bd7 Rh1 Bc8 g4 Kd7 g5 h5 b6 f5 b7 a5 d6 f4 g6 a4 g7 a3 Ra2 f3 Qb3 h3 Qd5 h4 Qg5 h2 Ra1 h3 Qe5 a2 Rb1 a1B Qh5 Qe3+ Ke1 f2+ Kd1 Ra4 Nf3 Rh6 Qe5 Qe4 e3 Nf6 g8Q Bg7 Qh5 Ne8 Ne1 Be5 Rg1 h1B Nc2 h2 Nb4 Bg2 Qgg5 h1B Bd2 Bh3 Rg4 Re6 Rh4 Bf5 Qg1 Bg6 Rf4 Kd8 d7 Rb6 Rc1 Bg2 Rc3 Bh3 Rc4 Be6 Rf5 Bg8 Bc1 Ke7 d8B+ Kd7 Be7 Bg7 Bf6 Bh8 Bh3 f1B Bd2 Bd3 Bf1 Bb1 Bc1 d3 Rd4+ Qd5 e4 Bg7 e5 Bh8 Rg4 Qe4 Be3 Bc4 Bg7 Kd8 Rgf4 Nd7 b8Q Bg8 Qa7 Ba6 e6 Kc8 Bf6 Bc4 Bd8 Be5 Bf6 Bd4 Qb7+
3B4/2bNN3/k5R1/p1b3K1/n1pn2pB/1q2r3/1n1P1PbQ/1N1QrnbB b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 hxg4 c4 dxc4 Qc2 f5 Na3 f4 Bb2 f3 Bd4 fxe2 Rd1 exd1N Bb6 Nd7 Be3 Nb8 b6 g3 h4 c3 Ke2 Kd7 Kf3 Kc6 Kf4 Kb7 h5 e5+ Kf3 g5 h6 c5 b5 a5 h7 g4+ Ke4 c4 Qc1 g2 Bc5 c2 Rh4 Bd6 Rh5 Na6 Be2 Nh6 Nh3 g1B Qa1 c1B Nb1 Re8 h8Q Ba3 Rg5 Nf5 Nf4 Nde3 Rg6 Nf1 Nc3 Bc7 Bf3 Qh4 Bh1 Qh3 Qh5 Nd4 Qd1 Re6 Be7 Nc5+ Kd5 Na4 Ke4 Bcd6 Qh8 Bac5 Nb1 Qb3 Qh2 Rb8 Nd5 Bc7 Bh4 Re7 Qg3 Bd7 Qh2 Rbe8 Nf6 Bc6+ Nd5 Ne2 Kf5 Nd4+ Kg5 Re6 Qc1 e4 Qc2 e3 Qc1 e2 Qe1 Ra8 Qd1 Ra6 Ne7 e1N Kh6 Nd3 Kg5 Ka8 b7+ Ka7 b8N Bg2 Nd7 Re4 Rb6 Ndb2 Rg6 Rae6 b6+ Ka6 b7 Re1 b8B Bg3 Bd6 R6e3 Bc7+ Bgd6 Bb6 Bb8 Bd8+ Bbd6 Nb6 Bc7 Nd7+
1n2n1N1/Qn1bR1R1/3brr2/pP1Qbk1B/qN1N4/pnK3Pp/2b5/7R b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f3 bxa4 f4 exf4 e4 g5 h4 gxh4 b3 Kd7 Ba3 Ke8 Bc5 Bf5 Bd4 Bc8 Be3 fxe3 d4 Kd7 g3 f5 d6 Ke6 e5 a5 b4 h5 b5 c5 d7 h3 Qc1 f4 d5+ Kf5 e6 h2 e7 c4 e8R c3 d6 a3 Re6 c2 Nc3 e2 Kd2 e1B+ Kd3 f3 Re7 h4 Re6 h3 Qd1 c1N+ Kd4 f2 Qd2 Qh4+ Ne4 Nd3 d8N Bd7 Be2 f1N Rb1 Nf6 Nc6 Rh6 Kc3 Nc5 Re7 Nb7 Rb4 Ra6 Nf3 Ne8 Nf6 Bf2 Qa2 Nd2 Qf7 Nb3 Ng8+ Rf6 Rg4 Bg1 Rg6 Qa4 Rg7 Bf2 Nb4 Bd4+ Kc2 Be5 Nd4+ Ke4 Bh5 Rb6 Rg1 h1B Kc3 Bf3 Rh1 Bd1 Qc4 Bc2 Qc7 Bc8 d7 Rbe6 d8Q Bd7 Ref7 Bfd6 Re7 N7c5 Qa7 Nb7 Qc8 Bf4 Qc6+ Ke5 Ne2 Kf5 Qd5+ Bfe5+ Nd4+
2Nbn2k/n6r/R4qp1/3KP1Qb/rb4bQ/2p4P/2rQR1p1/1rB1R2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 f3 c6 g3 Bg2 fxg2 Na3 dxc6 Nb1 c5 Ra2 c4 Ra4 Qd3 Ra1 Qd8 e4 f5 Ke2 Kf7 Ke3 a5 d4 c5 b4 f4+ Kf3 g6 h3 Kg7 d5 c3 e5 c4 Ke4 c2 d6 a4 d7 f3 b6 c3 b5 a3 b7 f2 b6 f1B Bf4 c1R Qd2 a2 Na3 Be2 Kd5 Rh7 Nc4 Bh5 Nd6 Rc2 Ne2 Qf6 d8Q Nc6 b8R g1B b7 g2 Ng3 Bcg4 Nc8 Bb6 Rhe1 Ra4 Nh1 Na7 Ra8 Kh8 b8Q Ba3 Re2 Bb4 Rae1 a1R Qbc7 Rac1 Qc4 Rb1 Qe7 Bd8 Qe4 Nb5 Ra6 Na7 Bh6 Qf3 Qeg5 Nf6+ Kd4 Ne8 Kd5 Qf6 Qed4 Bd7 Qdh4 Bdg4 Bf8 Bba5 Ba3 Bb4 Bc1
2Q1rnq1/2qN3q/4Rb2/B2Q4/p2pN2q/1r2q3/r1P1bNpP/k1R1Q1K1 b - - 0 1 illegal: No possible last move, all moves rejected
2RnR2q/kN4b1/5qP1/1PR5/BKn2QBp/4p1n1/2bp1n2/B1r2nQq b - - 0 1 legal: proof: f4 g5 g4 c5 e4 a5 h4 f5 d4 cxd4 h5 Ra6 Nc3 Rf6 Nd5 fxe4 f5 Rg6 Nf4 gxf4 hxg6 b5 a4 bxa4 g5 Bb7 Bh3 Ba6 Bf1 Bc8 Kd2 e5 b4 d5 c4 Kd7 g7 Kc7 g6 Kb6 b5 h5 f6 d3 Kc3 d2 c5+ Ka7 f7 h4 c6 a3 c7 a4 Bc4 d4+ Kc2 e3 Be2 e4 Bd3 f3 Nh3 e2 Nf4 e1Q Rg1 f2 Rg4 f1N Nd5 a2 Ne3 a3 Kb3 Nh6 g8Q Nf5 Kc4 Qf6 Nc2 e3 Rg3 Nc6 Rg5 Nd8 Bb2 N5g3 Nb4 Bg7 f8R Bf5 Bc2 d3 Rc1 a1Q c8B a2 Re8 Rh5 Qg4 d1N Ba4 d2 Na6 Bc2 Rc5 Nf2 Qf8 Qd1 Kb4 Rg5 Rc3 Rc5 Qf4 Qh5 Bg4 Qh8 Q8d6 Rc7 Nc5 Qb1 Qd7 a1N Nb7 Nb3 Rc5 Na5 Qd5 Nc4 Qh1 Qa1 Qg1 Rc8 Re1 Qd1 Ba1 Qf3 Rd1 Qh1 Rc1 Bb3 Be6 Nb2 Rh5 Rc2 Bg4 Rc7 Rc4 Rc6 Rce4 Rc1 Rc4 Bc2 Rc8 Nc4 Rhc5
6N1/5b1R/RbKpB3/1r2p2Q/1N3b1P/1npqb1b1/1Q1k1PN1/1rqq3Q b - - 0 1 legal: proof: e4 e5 c4 h5 b4 b5 d4 f6 g4 hxg4 a4 bxa4 b5 Nc6 c5 Nb4 Bh6 Nd5 Be3 Nb6 cxb6 Be7 Bf4 exd4 e5 Bd6 e6 Bf8 Be5 fxe5 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 h4 Kb4 Kd5 c5 b7 a5 b8Q g5 b6 a3 e7 a4 e8Q a2 b7 c4 Qe6 d3 Qh6 a3 Nd2 Kc3 Qbd6 g3 b8N g2 Rb1 a1Q Qhg6 g4 Be2 g3 Bf3 a2 Qe4 Bh6 Rb2 Be3 Qg4 Ra5+ Rb5 Ne7+ Ke4 Nc6 Kd5 Qc1 Qh5 a1B Qc7 Nd4 Nh3 g1B Rc5 g2 Qh7 Nb3 Qa7 Bh2 Nc6 g1B Nb4 Bhf4 Qb7 Rb5 Qh5 Bgh2 Bg4 Bhg3 Be6 Rf8 Qb8 Bb7+ Kd6 Bd5 Rg1 Rg8 Rc6 Rh8 Ra6 Rh6 Nf1 d2 Nh2 Bb2 Qdf3 d1Q Ng4 Kd2 Qh1 Bbd4 Nf6 c3 Ng8 Bb6 Qb7 Be4 Rg2 Bg6 Rg1 Bf7 Qb8 Bh2 Rg7 Rg6 Qbb7 Rg1 Rh7 Bhg3 Qb8 Bg5 Nf4 Re1 Ng2 B5f4 Nf6 Ra5 Qa8 Qcc2 Bf5 Rb5 Ra2 Qg4 Be6 Rb1 Ng8 Qd1 Ra1 Qcc1 Qa4 Qg5 Qa3 Qf5 Qb2+ Qfc2 Ke7 d6 Kd7 Bg5 Ra6 B5f4 Qa3 Qf5 Kc6 Qd3 Qb2+
1n2N1r1/1QN2rRR/1Pp5/1QP3QK/2N2q1p/1q1pq1rq/2n4b/1q2kB2 b - - 0 1 legal: proof: f4 b5 e4 g5 g4 e5 a4 bxa4 d4 f6 f5 exd4 Bf4 gxf4 h3 Ba6 e5 Be2 g5 Bg4 hxg4 fxe5 Qd2 e4 Qd3 Be7 Qd1 Bf8 Kf2 Ke7 b4 Kd6 c4 Ke5 c5 h5 g6 d5 g5 a5 b5 c6 f6 f3 Kg3 d3 Kh4 Kf4 b6 Ke3 g7 Kf2 f7 a3 Qb3 a4 Qb4 a2 Be2 d4 Na3 d2 Bc4 d1Q Qb1 e3 Rh2+ Ke1 Bb3 d3 Nc4 e2 Rh1 a3 Qc1 f2 Qe3 f1R Nh3 Nf6 g8Q Ng4 Nf4 Qf6 Nd5 Qf4 g6 Bd6 f8Q Rg1 g7 Ra7 Ba4 Rf7 Nc7 Qb1 Rh2 Rg3 Bd1 Qb3 Qc8 Be5 Rc1 a1Q Qb7 a2 Qgc8 Qab1 g8N a1Q Nf6 Bd6 Nfe8 Rg8 Qe5 Qaa4 Qg5 Ne3+ Qcg4 Qf5 Qd4 Nc2 Qb2 Q3a2 Qb5 Q2b3 Rf2 Qe6 Rf6 Qf5 Rg6 Qf1 Rg7 Be5 Qg4 Qh3+ Kg5 Bf4+ Kg6 Qab4 Qg5 h4 Kh5 Be5 Rh7 Q4a4 Ncd6 Qf4 Nc4 Q1a2 Ra1 Qab1 Ra8 Kf1 Ra1 e1Q Ra7 Qee3 Be2+ Ke1 Bf1 Qff2 Qa8 Rgf3 Rh6 Rff8 Ne6 Bh2 Rhh7 Rg3 Rag7 Qff4 N6c7 Rf7 Qb7
3NB3/rp1Rp1RP/5rq1/1R1K1QQ1/Pqr3nq/1r6/p1b3n1/N2nQ1k1 b - - 0 1 illegal: No proof kernel
2n4b/r3bN1p/b3k3/1QR1R3/N2r1Q2/2Rb1pPr/pPr3qr/3K1BN1 b - - 0 1 legal: proof: a4 c5 f4 g5 e4 f5 d4 fxe4 f5 cxd4 Bf4 gxf4 a5 Nc6 a6 Ne5 h3 Ng4 hxg4 bxa6 g3 a5 Rh6 a4 Rh3 Nh6 Rh1 Ng8 c4 Kf7 f6 e5 g5 a5 c5 d5 c6 f3 g6+ Ke6 f7 d3 c7 d4 g7 e3 Nd2 e2 Qb1 a3 Nb3 d2+ Kf2 d1B Ke1 a4 Qa2 d3 Rh4 e4 Bg2 d2+ Kf2 e1B+ Kf1 e3 Rh5 Ra7 Rh4 Ne7 g8R Ba6+ Rc4 Bc2 c8N d1R Na5 Qd2 Nh3 e2+ Kg1 Rc1 Nb7 Bd3 Ncd6 Nc8 Qb3 Be7 Rg5 Rd8 f8Q Rd7 Ra2 Rc2 Rh5 Rd8 Qf4 Rd7 Nf7 Bf2+ Kh1 Bd4 Rc3+ Rd5 Rg5 e1R+ Kh2 Re3 Kg1 Re2+ Kf1 Bh8 Qbb4 Rd4 Rf5 Bh4 Ra1 B4f6 Re1 Be7 Qa5 a2 Qb4 a1R Qb5 a3 Rh5 Bh4 Nc5+ Ke7 Rf5 a2 Na4 Ke6 Rfc5 Be7 Ng1 Re5+ Ne2 Rh5 Kf2 Rh3 Kf1 Rac1 Kf2 Qd1 Ke3 Rd2 Ng1 Qc2 Bf1 Rf2 Re2 Rfh2 Re1 Qg2 Re2 Be5 Kd2 Rc2+ Kd1 Rc4 Re4 Rb4 Rd4 Bh8 Rdd5 Rd4 Re5+
br5Q/nBkpb3/pr1Rr3/1R2N1P1/1rPr1q2/1QB4B/K1bb3p/1Q6 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 g5 bxa4 Nc3 e5 Ne4 Nc6 Nf2 Nce7 h5 Ng6 Nd3 f3 Nf4 exf4 hxg6 Be7 Ra2 Ba3 Ra1 Bf8 Kd2 f5 c4 h5 Kc2 a6 Kb1 h4 e4 a3 b4 h3 b5 a2+ Kb2 d3 b6 f2 g7 d2 b7 h2 b8Q f3 e5 f4 e6 Rh6 e7 Bb7 Qa7 Qc7 Bg2 f1B Qc5 f2 Kb3 f3 Qc6 Qf4 Qa4 Rb8 Ka3 Rb6 Nh3 Bd3 Qc6 f1R Qf6 f2 Rb1 a1B Bb2 Ba8 Qc3 Re1 Ka2 f1R Bb7 Bc2 Ng1 Re2 Qc1 d1R Nf3 Rd5 Qd1 Rdb5 Qc1 Rd1 Rg1 Rdd6 Rd1 Red2 Ne5 Re6 Qg3 Rd3 Bd4 Bc3 Rb3 Ba5 Qb1 Bb4 Ba1 Rdd6 Rd5 Bd2 Rbd3 Rb4 Rb5 Rd4 Qf3 Re4 Rd6 Rd4 Qfb3 Nf6 Rc5 Nd5 Bc3 Nc7 g8Q Nb5 Qh8 Na7 Rcd5 Bh7 Rb5 Bc2 Ng4 Kf7 e8B+ Ke7 Ne5 Kd8 Bh5 Kc7 Bg4 Be7 Bh3
K5n1/pB3P2/2bk3p/RNr1b1P1/nQq3pQ/5Bb1/1bRB2bb/2q1R3 b - - 0 1 legal: proof: d4 b5 c4 d5 g4 dxc4 a4 bxa4 d5 f5 Nd2 fxg4 Bh3 e6 Bf1 e5 h4 g5 Qc2 g3 Qb1 g4 Nb3 Na6 Nd4 exd4 Qc2 Rb8 Qd1 Rb6 Nh3 Rg6 Ng1 Rg5 hxg5 Bf5 Bf4 Be6 Bc1 Bc8 Kd2 Ke7 e4 c5 f4 a3 b4 g2 d6+ Ke6 f5+ Kd7 b5 a2 f6 d3 Ke3 d2 f7 c3 e5 h6 Ke4 c4 Kd5 c2 b6 c3 b7 Qb6 b8Q Nc5 Ba6 Qc7 Bb7 Na4 Ne2 g1B Nd4 Be7 Nb5 Bh2 Qe1 d1B Bd2 c1Q Qh4 c2 Rg1 Be2 Re1 Bf1 e6+ Kd8 d7 Bg2+ Kd4 Bed6 Bf3 Ke7 Kd5 Bdg3 d8R Qf4 Kc6 Bd7+ Kb7 Qc4 Ka8 Be8 Rc8 Bd7 Nc7 Kd6 e7 Bb5 e8B Bd7 Rb1 a1B Rb5 Bae5 Ra5 Bc6+ Qb7 Qb2 Bd7 c1B Bf5 Qbc3 B5e4 Bb2 Bd5 Be8 Qb5 Qc1 Bb7 Bc6 Qb3 Rh7 Qc3 Rg7 Qb3 Rg6 Qc3 Rf6 Qb3 Rf5 Qb6 Bed4 Qb4+ Rc5 Nb5+ Kd7 Rce8 Bde5 Rd8+ Ke7 Rd3 Ke6 Rc3 Kd7 Rc2 Ke7 Nc3 Kd6 Nb5+
2Rnr1r1/8/knb5/1p2rrr1/2QB2Pp/R1PKp1QQ/NNn4b/1r1R4 b - - 0 1 legal: proof: g4 c5 f4 f5 b4 a5 d4 cxd4 e4 axb4 h4 g6 Bb5 Qa5 Be2 Qe5 Bc4 Qf6 Bd5 Qg5 hxg5 Na6 Be6 fxe4 f5 Nb8 f6 Ra7 Bf5 gxf5 Rh6 Ra3 Rh1 Ra8 Ke2 Kd8 a4 Kc7 c3 Kb6 f7 d5 g6 h5 g7 e5 a5+ Ka6 Na3 b5 Qa4 f4 Bb2 e3 Rf1 h4 Rc1 e4 Rh2 b3 Nc4 f3+ Kd1 e2+ Kd2 e1N Rf2 e3+ Kd1 d3 Ne2 d2 Qb4 d4 Qa4 Ne7 g8R Bb7 Ra1 Nd7 Ba3 b2 Rg6+ Bc6 Bc5 b1R+ Nc1 Nb6 Nb2 Rg8 Rf1 f2 Ke2 d1R Qc4 Re8 Ra3 Nc2 Na2 Rd3 Rd1 f1R Rh6 Rf5 Rh8 Bh6 f8Q Bf4 Qf6 Bh2 Qe5 Rfg5 Qg3 Rd2+ Kf1 d3 Bd4 Re2 Qh3 d2 Qg3 Rg2 Qh3 Rg3 Ke2 Rf3 Kd3 Rff5 Qg3 Ba8 Qh3 Nc6 Qg3 Nd8 Qh3 Ka7 a6 Bc6 Qg3 Ka8 a7 Kb7 Qh3 Rfe5 Rg1 Rf1 Rh1 Rff5 a8Q+ Kc7 Qa5 Kb8 Qab4 Kb7 Qd6 d1R+ Ke2 Re1+ Kd3 Rb1 Rd1 Rd5 Qdg3 Rde5 Rh6 Bh1 Rc6 Bd5 Rb3 Ka6 Rc8 Bc6 Ra3+
6r1/2Q5/BB1B1Rqp/q1q1q1b1/n4P1Q/r3r1QK/bpP3p1/1kN2r1N b - - 0 1 legal: proof: g4 a5 a4 c5 d4 g5 b4 axb4 h4 gxh4 e4 f5 g5 d5 Ra3 Nc6 Rg3 Na5 Rg4 fxg4 Rh2 Nc4 Rh3 Ne3 Rh2 cxd4 Rh3 d3 Rh2 d4 Rh1 Nd5 exd5 Bd7 Ba3 Be6 Bc1 Bc8 f4 Kd7 Kf2 Kd6 Kg2 Kc5 d6 Kc4 d7 b5 g6 e5 a5 h3+ Kh2 h6 a6 e4 g7 e3 a7 e2 Qe1 d2 Bb2 d1R Qd2 b3 Qe3 b4 Kg3 h2 Nf3 d3 Qe7 e1R Ba1 b2 Bh3 b3 Qe5 d2 Qe7 Re3 Kh4 g3 Qf6 g2 Re1 h1Q Kg4 Qg1 Ng5 Ne7 g8Q+ Nd5 Nc3 b1Q Bb2 Qa5 Bc1 Be7 Ne2 Qb2 Ne4 Qe5 Qh4 Bg5 Nf2 b2 Nh1 Kb4 Qg7 Ba6 d8B Ka3 Bb6 Ka2 Qc7 Kb1 Bc5 Nc3 Bd6 Rag8 a8Q Na4 Qf3 Bc4 Kg3 Rh7 Bc8 Ba2 Kh3 Re7 Ba6 Ra3 Qfg3 Qgc5 Nd4 Ree8 Nb3 Re7 Re4 Rf1 Rb4 d1Q Be3 Qe2 Rb6 Qd3 Nc1 Qg6 Bf2 Qec3 Bd4 Re3 Rc6 Qe5 Bb6 Qcd4 Bf8 Qc4 Rf6 Qcc5 Bd6
nR1Q3K/r1q1r1N1/1q1PqrR1/3kP3/Q3p1p1/q3p2R/2r1B1n1/2b1Q1N1 b - - 0 1 illegal: No extended proof kernel
Qn6/4BR2/nQp5/p2n2R1/P1b5/1pbNrb1K/2R1BPn1/2q1bkqQ b - - 0 1 legal: proof: e4 f5 g4 fxe4 b4 c5 c4 cxb4 c5 Na6 c6 dxc6 Qa4 Nb8 Qb3 Bd7 Qd1 Bc8 Nf3 b5 Nc3 h5 Ng1 a5 Nd5 Ra7 Ne3 Rd7 Nf3 Rd5 Ng1 Rf5 gxf5 Bb7 Ng4 hxg4 Bd3 Ba6 Bf1 Bc8 d4 Kf7 h4 Kf6 a4 g5 h5 e5 d5 g3 d6 g4 h6 b3 d7 b4 h7 g2 Ba3 Kg5 f6 Kf4 f7 g3 Ke2 b2 Rh6 b1B Nf3 g1Q Rg6 g2 Qd2+ e3 Qe1 b3 Rg7 e4 Ng5 Bb4 f8R+ Nf6 Re7 Bd3+ Kd1 e2+ Kc1 e3 Qd1 e1B Rg7 e2 Ne4 Kf3 Nc5 Na6 Ra2 Bc4 Nd3 Bbc3 Rff7 Re8 h8Q Re3 Be7 Qc7 d8Q Bg4 Qhf8 Qf4 Qb6 Nd7 Rc2 Ndb8 Qc8 Qh2 Qh8 g1N Rg5 Nh3 Qc8 Qg1 Qcb7 Qf6 Qa8 Nf4 Bh3 Bh5 Bd7 Nd5 Bg4+ Kg2 Bf3+ Kh2 Bg4 Qf4 Bf3 Bb4 Bg4 Bec3 Qf1 e1N Kd1 Ng2 Qe1 Rh3 Ke2 Qc1 Qd1 Be1 Bf3 Bbc3 Bg4 Rh4 Kf3 Kh1 Kg3 Rh2 Bh3 Bf3 Bg4 Rh6 Bh5 Re6 Kh3 Re3 Rg3 Be4 Be2 Bf3 Rg5 Bed2 Qf1 Be1 Bd1 Nh4 Qe2 Qf1+ Kg3 Ng2 Kh3 Kg1 Nb4 Bb5 Qc4 Bh8 Qf4 Bc4 Nd3 Bb2 Kg3 Bbc3 Qh4 Ngf4 Qh3 Qg2+ Kh4 Kf1 Qh2 Qg1 Qh1 Ng2+ Kg3 Qa3 Kh3 Qc1 Be2+
2r2rb1/7q/1npRPBn1/1NknpQ2/1pB5/2P1r1n1/2BqR3/Q1r1Q1K1 b - - 0 1 legal: proof: e4 d5 h4 dxe4 d4 a5 b4 axb4 h5 e3 h6 gxh6 Qd3 h5 Qd1 h4 Na3 e5 Nb1 e4 Be2 Bd6 Bf1 Be5 dxe5 Qf6 Qd5 Qe7 Qd1 Qd8 e6 f6 Nd2 Qd7 Nc4 Qd8 Ne5 fxe5 f4 Ke7 g4 h5 a4 b5 f5 h3 a5 h2 a6 h4 g5 c6 g6 b3 g7 b2 a7 b1N Ke2 b4 Ra2 h3 Qd2 Nd7 Bg2 Nc3+ Kf1 e2+ Kf2 e1R Bf1 e3+ Kg3 e2 Kf2 Ba6 Nf3 Nd5 c3 Kd6 f6 Rc8 a8Q Nb6 f7 Bd3 f8Q+ Nge7 g8B Kc5 Qf5 Ng6 Bh7 Rf8 Nd4 Qd6 Rg1 h1Q Nb5 h2 Rg4 Rd1 Rd4 e1R Rc2 Re3 Qe1 Qe4 Qa1 h1N+ Kg1 Ng3 Re2 Bb1 Bd2 Rc1 Rd3 Rf3 Bh6 Re3 Bg5 Qd7 Rd4 Qd3 Bf6 Qd2 Bg8 Qh7 Bf7 Nc7 Rd6 Ncd5 Be8 Ngf4 Bh5 Ng6 Bf3 Bd3 Be4 Nh8 Qh3 Qd7 Rh2 Bb1 Bc4 Bd3 Bg2 Bh7 Qf5 Ng6 Be4 Bg8 Bc2 Qh7 Re2
1r1Q2Rq/1pP5/2R1kpb1/qPb3br/p2Q2b1/B1N1r1B1/1K6/BR2n2r b - - 0 1 illegal: No proof kernel
N1b2B1Q/7R/p1Pbnp2/Q2nP3/3N1N2/1r1Q1K1k/1rrrp1n1/Rn2b3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 b4 dxe4 h5 c6 h6 gxh6 Qf3 h5 Qd1 h4 f4 e5 b5 e3 b6 e4 Be2 Qd6 Bb5 Qe5 fxe5 cxb5 Ke2 Kd7 d4 Ke6 g4 h5 c4 b4 g5 Kf5 g6 Kg4 g7 b3 b7 a3 d5 h3 d6 a2 d7 h4 d8N b2 c5 f6 c6 h2 Nh3 a6 Qf1 Nd7 b8Q Ne7 Qd6 Nd5 Nc3 b1N Nf7 Rb8 Qc7 Rb2+ Bd2 Bd6 Na4 Rd8 Nc3 Nc5 Nb5 Ne6 Nhg5 h3 g8Q Rc2 Ke1 e2 Kf2 e1N Nd4 Ng2 Qd3 e3+ Ke2 Kh4 Kf3 e2 Ne4 Rd7 Qa5 Rd8 Rg1 h1R Ng3 h2 Bb4 Kh3 Nh5 Rb2 Rd1 Rb3 Rd2 Rc1 Qh8 h1R Rd1 Rd7 Nd8 Rc2 Rc1 Rd1 Bc5 Rdd2 Ba3 Nef4 N8e6 Rdb7 Nc7 Ne6 Na8 Rbb2 Re1 R7b3 Rf1 Bb8 Bf8 Bd6 Rg1 Nbc3 Rad1 a1B Rdf1 Nb1 Rd1 Ngf4 Rg7 Ng2 Ra7 Ra2 Re1 Bc3 Rh7 Rab2 Rg1 Rd1 Rf1 Be1 Rg1 Rdd2 Rf1 Bg3 Rd1 Be1 Rc1 Nbc3 Ra1 Nb1 Nf4#
R2R2K1/P3NQb1/3p3p/N1N2r1p/2b2rn1/4R1r1/P2B1kQ1/1nnbn1b1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 h4 fxe4 h5 a6 Bb5 Qa5 bxa5 axb5 a6 g6 a7 gxh5 Kd2 Kf7 g4 Kg6 f4 e5 c4 h6 f5+ Kg5 f6 Kf4 g5 Kg3 f7 d3 Ke3 d2 g6 b4 c5 b5 c6 d6 c7 b3 g7 b4 Nf3 b2 Qb3 d1B Qa4 b3 Bd2 Ba6 c8Q Nc6 Qd8 Nf6 g8R+ Bg7 f8N Nb4 Qb8 Nd3 Qc7 Nc1 Na3 b1R Rf1 b2 Nd4 Bc4 Nd7 Rf8 Qc2 Rf7 Ra8 Rg8 Nc5 Rff8 Ba5 Rf7 Nc6 Ng4+ Kd2 e3+ Kc3 e2 Ne7 e1N Qg2+ Kh4 Rf3 Rf4 Re3 e4+ Kb4 Rgf8 Qd7 R8f6 Qe8 R6f5 Qf7 Ba6 Nc4 Bb5 Rf3 e3 Rg3 e2 Re3 Bc6 Rd8 Bd5 Kb5 Be6 Bd2 Bd5 Na5 Bc4+ Kc6 Re5 Re4 Ref5 Qg1 Kh3 Kd7 Kh4 Qh1+ Kg3 Ke8 Kf2 Re3 Ng2 Bc3 e1B Bb4 Bec3 Ra8 Bcd4 Bd2 Ne1 Qb7 Bgf6 Kf8 Bg7+ Kg8 Kf1 Re5 Bg1 Re3 Kf2 Rd8 Ne2 Qh1 Rc1 Qb7 Rc3 Rc1 b1N Rc2 Nc1 Rb2 Rf6 Qc6 Ra3 Rbb8 R6f5 Ra8 Rd3 Re5 Rdf3 Re3 Rg3 Qg2+
1Q3qnr/1bq3B1/1p6/p2b1Nk1/1PnR1n1P/1Q2pBp1/1B5N/1KNr3r b - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 c5 a4 cxd4 f5 Qb6 a5 Qe6 a6 Qxa6 g3 Qa2 b4 h5 Nd2 e6 Rb1 Bd6 Ra1 Bf4 gxf4 Qa4 Ra3 Qa5 Rg3 Qa2 Rg4 hxg4 c4 Ke7 c5 Kf6 h3 g5 c6 d5 c7 e5 Be2 g3 Qa4 b6 Kd1 g2 Ngf3 g1N Bb5 d3 Rh2 d4 Rh1 e3 Nb3 g4 Ng5 e4 Nf3 e2+ Ke1 g3 Nh2 Nd7 Bc6 Bb7 c8N Ne5 Nd6 Qc2 Bb2 Nc4 Nc1 a5 Qb3 Rf8 Bd7 Na3 Be6 Qc7 Kd2 e1R Bd5 Ne2 Rg1 Rd8 Rg2 Rh1 Rg1 Kg7 f6+ Kh6 f5 Nf4 f7 Kg5 f8B e3+ Kd1 d2 f6 Rd7 f7 Nc4 Kc2 d1B+ Kb1 d3 Bf3 d2 Nf5 Be2 Rf1 d1Q Bfg7 Qdd6 Rd1 Qf8 Rd4 Bf1 Nh6 Bg2 Nf5 Qe8 f8Q Rd6 Re4 Rdd1 Rd4 Qef7 Qb8 Qf8 Bh5 Bgc6 Bf3 Bd5 h4+
bq2n2r/R5QQ/1p1p3P/1Nrbq1Q1/2n2bpN/3N3p/1Pr2BB1/k4K2 b - - 0 1 legal: proof: d4 h5 a4 c5 h4 cxd4 g4 hxg4 e4 f5 exf5 Qa5+ Bd2 Qxa4 Bc1 Qa2 Rh3 gxh3 c3 Nh6 Qa4 Nf7 Bg2 Qc4 Nf3 Rh6 Nbd2 Qa6 Kd1 Rh8 Qc2 Nh6 Nb3 Qb6 Bf4 Qa6 Bd6 Qa2 Ba3 Kf7 Ke2 Ng4 Rh1 Ne5 Qd1 Ng4 Bf1 Ke8 Ke1 Nf6 Ng1 Ng8 f4 Kf7 c4 e5 c5 a5 h5 g5 h6 b6 c6 a4 c7 e4 f6 Ke6 f7 Kd5 f5 g4 f6 d3 Qd2 Kc4 Rh2 e3 Rh1 e2 Qe3 d2+ Kf2 d1B Nc1 Bb7 c8Q+ Nc6 Qf3 Ra5 Bb4 a3 Nb3 Rc5 Qa8 Bd6 f8N Bf4 f7 d6 Qa7 Ba8 Nd4 Nf6 Nb5 Ne8 Bg2 Ne5 Qe3 Bb3 Nd7 e1R f8Q Re2+ Kf1 Rc2 Bc3 Qa1+ Be1 a2 Qf6 Qb1 Qe7 a1Q Qg7 Ba2 Qc1 Kb3 Nf3 Nc4 Qd2 Qd1 Nh4 Qdc1 Qd5 Qe3 Qdg5 Qe5 Qc7 Qc1 Qa7 Qce3 Bf2 Q3e4 Qc7 Qb7 Qh7 Qb8 Qhg7 Qd5 Ne5 Qd4 Nd3 Qe5 Qcd7 Bb1 Bf3 Ka2 Bg2 Ka1 Qdf5 Ba2 Qfh7 Bb3 Q5g6 Ka2 Qg5 Ne3+ Ke1 Bbd5 Rg1 Rc1+ Ke2 R1c4 Rc1 Rc2+ Ke1 Nc4+ Kf1 Qf6 Re1 Qf5 Re6 Qe5 Re7 Ka1 Ra7+
4B1b1/2KNP3/rnn1prbb/2R2Q2/1Q1p1r1p/3BPB2/4pkR1/1r2R1q1 b - - 0 1 legal: proof: h4 f5 b4 g5 b5 gxh4 e3 a5 b6 a4 Ke2 f4 Bb2 a3 Nc3 axb2 d4 e6 d5 f3+ Ke1 Kf7 d6 Qe7 Nce2 fxe2 dxe7 cxb6 Kd2 b5 Rc1 b4 Rb1 Ra6 Ra1 Ra8 Kd3 Kg6 Ke4 Kg5 Ke5 Kg4 Kd6 b1Q c4 b5 a4 h5 f4 Kg3 a5 b3 f5 b2 f6 h3 a6 h4 f7 h2 a7 b4 c5 b3 c6 Qd3+ Kc7 b1B Nf3 d5 Rg1 h1R Qd2 b2 Ne5 d4 Qb4 Qa6 Nd7 Kf2 g4 Bh7 g5 b1R g6 Nf6 g7 Bb7 g8B Bh6 f8Q Rh3 Bf7 Rf3 Bh3 Bg8 Rg4 Rf4 Be8 Qb5 Rg7 Qg5 Bf5 Qg1 Bd3 Rh7 Rg4 Rf7 Rg5 Rb2 Re1 Nd5+ Kd6 Rb3 c7 Rb1 c8R R7f6 Rc5 Nb6 Kc7 Be4 Rg4 Bg6 Rg2+ Kf3 Qf7 Nc6 Qh7 Bh5 Qf5 Bg6 Rg3+ Kf2 Rg5 Rd8 a8B Rb8 Bb7 Ra8 Rg3 Ra6 Rg4 Na7 Bf3 Nc6 Rg2+
Q2rb1Rk/R1P1K1p1/Q1B2pQB/8/2bb2p1/1p2n1B1/r1bqP3/r3N2n b - - 0 1 illegal: No possible last move, all moves rejected
4b3/bP2Kn1b/5r1n/2p2P1Q/Q3Rppn/1q1pB1Nr/2N1Q3/1nkN1B2 b - - 0 1 illegal: No proof kernel
1b5K/p3b3/2rqR2N/q1P1R1bb/r2QN1n1/1R1Q1p1p/kn1p1P1Q/1B6 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e3 b5 axb5 dxe3 g4 g5 h4 gxh4 Bd2 Bb7 Bb4 Ba6 Bd6 Bc8 Bg3 hxg3 Ke2 d5 Kf3 Kd7 Kf4 Ke6 Kg5 h5 b4 f5 Kg6 g2 c4 h4 c5 h3 g5 e2 b6 e1B b5 f4 b7 d4 b6 Kd5 Nf3 g1B Bg2 Kc4 Nc3 e5 Qb1 d3 Rh2 e4 Nd1 e3 Nd4 e2 Nf5 Be7 Kg7 Nd7 b8R Nh6 b7 Ng4 g6 Rh4 Nc3 Nde5 Be4 f3 Nh6 Qd6 Ra6 Bd2 Rg2 e1Q Kh8 Bdg5 g7 Bh2 g8Q+ Be6 Rg1 Bf7 Qg7 Bh5 Rh1 d2 Bc2 Nd3 Ne4 Nb2 Rg1 Qe3 Re1 Qa3 Qe5 Qa5 Qd4+ Kb5 Re3 Bhf4 Re8 Rc8 Rd3 Rc6 Rb3+ Qb4 Rb6+ Ka4 b8Q Bg3 Qd8 B3f4 Qh1 Bh2 Qd3 Qa5 Qd7 Qg6 Q7d5 Bb8 Qh2 Qd6 Ra6 Bf8 Re5 Bfe7 Q3d4+ Nc4 Rb5+ Ka3 Rb3+ Ka2 Qd3 Nb2 Q5d4 Ne3 Rab6 Rf4 Rb7 Ng4 Rd7 Qe6 Rd6 Qd5 Rg6 Qd6 Rge6 Rf6 Q4e3 Qac7 Ng3 Rf4 Qee4 Qb6 Qb4 Rc4 Ne4 Qa5 Qbc3 Rb4 Qcd4 Ra4 Bb1+
4K1Qr/5N1n/2kpBN2/Qq1p1b2/2RpR1pb/2Pn3n/N4P2/q3q1Qb b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 f5 d5 fxg4 d6 cxd6 Bg5 e5 Bc1 d5 h4 b5 Bh6 g5 Qd2 g3 Qd1 g4 Be3 Ra6 Ba7 Rg6 Bd4 Rg5 hxg5 exd4 Kd2 h5 e4 d6 a4 Kd7 e5 h4 a5 h3 g6 b3 g7 b2 e6+ Kc6 a6 h2 a7 b4 a8Q+ Kc5 e7 b3 e8N g2 Nc3 b1Q Nf6 b2 Nf3 g1Q Na2 Be6 c3 Qa5 Bd3 Na6 Ng5 Qb5 Nf7 Nb4 Qa5 Be7 Bf5 Kc6 Qe1 Bd7 Be6 Nd3 Qf1 Qe1+ Kc2 b1N Qg2 Qc5 Kb3 Nd2+ Ka4 Nf3 Qg3 Qgf1 Qg1 Ng5 Rb1 Qa7 Rb4 Nh3 Rc4+ Qc5 Ne8 Nf6 g8Q Nh7 Nf6 Qe5 Qg3 Qa1 Re1 h1B Re4 Bc8 Qg1 Bd8 Rf4 Qee1 Re4 Kb7 Nd7 Bh4 Nf6 Qa7 Kb5 Qb8 Qad8 Ka7+ Kc6 Qb5+ Kc7 Ka6 Qdf8 Bd7 Kd8 Kb7 Ke7 Kb6 Qa8 Bc8 Qa5+ Kb7 Rb4 Kc6 Rc4+ Nc5 Bf5 Bd7 Ng5 Be6 Ke8 Bc8 Bg6 Bf5 Bf7 Qb6 Be6 Qb5 Ra4 Nd3 Nf7 Qf1 Rb4 Qfe1 Rc4+
1b3q1Q/1qnp4/1Br1Q1B1/n6N/1p2nnK1/kp3P2/P1p4R/1N1NnB1r b - - 0 1 legal: proof: d4 a5 c4 e5 b4 axb4 h4 exd4 h5 b5 h6 b3 Rh5 b4 Rh2 gxh6 Rh3 h5 Rh1 h4 e4 f5 e5 Be7 Nd2 Ba6 Rb1 Bb5 cxb5 Bf8 Rb2 Ra3 Rc2 Ra4 Rc3 Ra6 Re3 Ra8 Re4 fxe4 Ke2 Ke7 g4 h5 g5 c5 b6 e3 Kf3 d3 e6 Kd6 b7 e2 g6 e1N+ Kf4 c4 e7 Kc5 e8B h3 g7 c3 Bg6 h2 Be8 h4 Nc4 h3 Qe2 d2 Nb6 d1N Qf3 c2 Ba6 Nf6 g8N Nb2 Nc8 Ne4 Qe2 Nc4 Qg4 Na5 Qe6 Bd6+ Kg4 Qf6 Nce7 Qf8 Bd3 Ra6 Bf1 Rc6 Nf6 Na6 b8Q Nc7 Ne2 Rh6 Qa8 Kb5 Nh5 Ka4 Be3 Ka3 Nc3 Rh8 Nd1 Rh7 Rg1 h1N Bb6 h2 Bg6 Nhg3 Rg2 h1Q Rh2 Ne2 Nd5 Nf4 N5c3 Ne8 Qd8 Bb8 Qdf6 Nc7 Qh8 Nc5 Bc4 Qd5 f3 Ne4 Bf1 Qb5 Nf6 Rh3 Nh5 Qd5 Rg2 Rh1 Rh2 Qb5 Nf2 Qa6 Nfd1 Qb7 Nb1+
N2N4/r3Q3/N2q2p1/p1q1Q1bb/Q1PqP1r1/1R1p2bp/R2Bk3/1q1n3K b - - 0 1 legal: proof: d4 b5 h4 c5 a4 cxd4 g4 bxa4 e3 e5 h5 f5 h6 e4 Bd3 exd3 Rh3 Na6 Rh4 Nc5 Rh1 Ne6 Rh4 g6 Rh1 Ng7 hxg7 fxg4 Kf1 Kf7 Kg2 Ke6 b4 Ke5 f4+ Ke4 c4 h5 b5 d5 f5 a5 f6 a3 f7 a2 b6 d2 b7 Kd3 b8N g3 e4 h4 Na6 h3+ Kf3 g2 Kg3 Qd6+ Kf3 Ra7 Kf2 Ne7 g8Q Bh6 f8Q Bg5 Qf5 Rh4 Qff7 Bg4 Qf5 Bh5 Qge6 Rg4 Qf8 Nf5 Qa4 d1Q Na3 Ne3 Bd2 Qb1 Nf3 Nd1+ Kg1 Ke2 Qe5 d3 Nb5 d4 Nbc7 Qc5 Qfe7 Qd6 Be3 d2 Na8 d3 Kh2 Qbb4 Rf1 g1B+ Kh1 Bh2 Rb1 a1Q Rb3 Bg3 Rg1 Qad4 Rg2+ Kf1 Rh2 Qbb6 Rg2 Q4c5 Nd4 Qbd8 Nc6 Q8d7 Rg1+ Ke2 Nd8 Qdd4 Rf1 Q7d6 Rf7 Nb2 Rf1 d1Q Bd2 Qb1 Rc1 Nd1 Rc2 Kf3 Rcb2 Ke2 Ra2
Q3NRR1/1nRb3K/2rPppN1/1q5k/Np1qPb2/2Bn2p1/n6n/1Q2b3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 g5 b4 gxf4 Ba3 a5 Bb2 axb4 Bc1 b3 g4 h5 g5 b5 Bh3 b4 Be6 Ra5 Bg4 Rb5 axb5 hxg4 Kf2 c5 h4 f3 Kg3 e6 Kf4 f2 d4 f1Q+ Ke5 c3 e4 g3 g6 c4 g7 b2 b6 c2 b7 c3 h5 Na6 b8Q Bc5 h6 Qb5 h7 Nh6 d5 Bf2 g8N Nc5 Bd2 c1B Nh3 c2 Ra8 Nb7 Nc3 b1N Na4 Nc3 Nf4 Na2 Nf6+ Kf8 Rf1 Kg7 Ng6 Ng4+ Kf4 Kh6 d6 Nh2 Ra6 Qe7 Rc6 Bd7 Qa8 Rc8 Ne8 Qd8 Qe1 Kh5 Rc3 Qdb6 Rc4 Ba3 Qb1 c1N Bc3 Be1 Rf3 Qd4 Rf2 Rc6 Rf3 Rb6 Rc7 Rc6 Rf2 Nb3 Rf3 N3c5 Rf1 Qdd3 Ke5 Qdc4 Kf6 Nd3 Kg7 Bc1 h8R+ Bh6+ Kh7 Qd4 Rf6 Be3 Nh4 Bh6 Rg6 f6 Rf8 Bg5 Rgg8 Bf4 Ng6
3Br1q1/k2q2br/pBp2q2/PQ3p2/2Q5/1P1nRp2/NRB2r1n/q1Q4K b - - 0 1 legal: proof: f4 b5 c4 bxc4 g4 e5 g5 exf4 d3 cxd3 g6 Qe7 Qb3 Qg5 Qd1 Qd8 Nh3 h5 Nf2 f6 Ng4 hxg4 Nd2 Bb7 Nf3 Bd5 Ng1 Bf7 gxf7+ Ke7 Kf2 Kd6 Kg2 Kc5 e4 Kb6 a4 g5 h4 d5 h5 d2 b3 f5 h6 a6 a5+ Ka7 h7 c6 e5 g3 e6 f3+ Kh3 g2 Kh2 d4 e7 d3 e8Q g4 Be2 Bg7 f8Q Nh6 Qff7+ Nd7 Qe5 Qf6 Qc4 Rae8 Rb1 Nc5 Qf1 d1R Bg5 d2 Rb2 Rc1 Bd3 d1Q Bc2 Qd7 Ne2 Nd3 Nc3 Re1 Bf4 Re2 Na2 Rf2 Qeb5 g3+ Kh3 g1Q Bc7 g2 Qc1 Rhf8 h8B Ng4 Bd8 Qd1 Re1 g1Q Re3 Nh2 Bc7 Rf7 Bd8 Bh6 Bc7 Qg8 Bg7 Qfe7 Bf6 Bg7 Bh4 Qed6 Bhd8 Qf6 Bf4 Bh6 Qd2 Rh7 Bfc7 Qa1 Qc1 Ng4 Kg3 Rf1 Kh3 Bg7+ Kg3 Nh6 Kh2 Rf2+ Kh1 Ng4+ Kg1 Nh2 Kh1 Re5 Nb4 Re7 Na2 Re8 Bb6+
4N1rB/2P1pQ2/2Npq2q/R2P2nn/Q1nq2QK/3p4/1pN2R1b/r4qk1 b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 b4 gxh4 Nf3 a5 Ng1 axb4 d4 c5 Qg4 b5 Ke2 b3 Qf3 b4 Ke1 c4 Qd1 Ba6 Bd3 Bb5 axb5 cxd3 c4 Kf7 f4 Kf6 Kf2 Kf5 g3 h5 c5 h3 b6 h4 c6 e3+ Kf3 e2 c7 e1Q b7 h2 Bb2 h3 Qd2 Bg7 Ra5+ Be5 Na3 Nh6 Qc2 Nc6 b8N Rg8 Nc4 Nf7 Ne2 Ra6 Rf1 h1N Qd1 h2 Rf2 Ng5+ Kg2 Ke4 f5 Ra7 g4 Ng3 f6 Nh5 Nd6+ Ke3 f7 Bf4 f8Q Ne5 Qf5 Nc4 Ne8 d6 Ba1 b2 d5 b1Q Bh8 b3 Nc6 b2 Qf7 Qd7 Qb3 Qe6 Ned4 Qb4 Qa4 Qc5 Nf3 Qd4 Ne1 Ne4 Kh3 Ng5+ Kh4 h1Q+ Rh2 Qf1 Nc2+ Kf3 Rg2 Qbc1 Rh2 Qce3 Rg2 Qh6 Rh2 Qee6 Rd2 Nh7 g5 Ra8 g6 Ng5 g7 Ra6 Rd1 Kf2 Rd2+ Kg1 Rf2 Bh2+ Qf4 Rf8 g8Q Ra8 Qf7 Rg8 Qa1 Rb8 Qa2 Rb3 Qa4 Ra3 Qe4 Ra1 Qg4+
2qB4/1PpbQn1n/R4pQn/q1RnN1p1/p1rNbb1R/8/1Q2P3/K4k2 b - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 g5 e5 g6 exf4 Nh3 a5 Qc2 h5 Ng1 f6 Bh3 Ke7 Bg4 hxg4 Qd1 Kd7 Kf1 Ra6 Ke1 Re6 Na3 Re7 Nb1 Rf7 gxf7 Kc6 Nh3 Kd6 Ng1 Kd7 d4 Ke6 Kd2 Kf5 Kc2 Ke4 h4 g5 b4 g3 Kb2 f3 b5 c3+ Ka2 a3 h5 c2 d5 g2 d6 f2 d7 f1B h6 Bd6 f8Q Bf4 h7 Nh6 Nd2+ Ke3 b6 Kf2 Ngf3 g1N b7 Bg2 Nf1 Nh3 Nd4 Be4 Qd3 a4 Bb2 c1N+ Kb1 Qe8 d8Q Nd7 Qfe7 Nf8 Nh2 Bd7 Nhf3 Kg2 Qc2 Nd3 Ne5 Kf2 Qb8 Qc8 Bc3 Kg2 Qb2 Kf2 Bb4 a2+ Kc2 Kg2 Rac1 a1Q Bc5 Qa3 Kb1 Qb4 Ka1 Qa5 Ba3 Kf2 Rc5 Kg2 Rh2+ Kf1 Bb4 Ng1 Ba3 Nf3 Rh4 Nb4 Qa8 Nd5 Bb4 Rg8 h8R Nh7 Qa6 Rd8 Qd3 Nf7 Rg8 Nh2 Re8 Ng4 Ba3 Bh1 Qg6 Be4 Rh8 Ngh6 Bb4 Bh3 Ba3 Rd6 Rd8 Ra6 Rd6 Bd7 Rdc6 Rb6 Re6 Rb4 Ra6 Rc4 Rcc6 Bg4 Qd7 Kg2 Be7 Be6 Rc5 Kf1 Bd8 Bh3 Qe8 Bd7 Qe7
2RQ1RNb/1p1B1r1p/r3N3/N1Kp1r2/bp1n2r1/P2Q4/3r1QP1/nk4b1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 e4 f5 f4 fxe4 f5 a5 Nf3 axb4 Bf4 gxf4 Ng1 Qb6 Bb5 Qg6 Bf1 Qg5 hxg5 Ra4 Nf3 Ra5 Ng1 Ra8 Ke2 Kf7 c4 e5 f6 Kg6 a3 Kf5 f7 d5 c5 e3 Kd3 f3 c6 f2 g6 e2 g7 e1R c7 e4+ Kd2 d3 Qa4 Bc5 f8Q+ Nf6 g8Q Bd7 c8N Nc6 Qff7 Ra6 Qgf8 Rg8 Qb3 Rg4 Qd1 e3+ Kc1 Ke4 Kb2 e2 Kb3 d2 Nf3 Kd3 Nd4 Ne4 Ne6 Ba7 Ne7 Nc5+ Ka2 Be8 Ng8 Nb3 Qd6 Bd4 Qd8 Bh8 Rh5 Ncd4 Rf5 Ke3 Qc2 d1R Nd2 Bb5 Rc1 Na1 Nb3 Rd2 Na5 Red1 Qdd7 e1B Qd8 Be8 Bd3 f1R Bb5 Bf2 Qff6 Bg1 Qg6 Re2 Rf8 Rf7 Ba4 Rdf1 Qd3+ Kf2 Qb2 Bb5 Rc8 Ke1 Qbc2 R1f5 Qb2 Ndc2 Qbd4 Rd2 Q4e3+ Kd1 Qf2 Bd7 Bb5 Kc1 Bc6 Nb3 Ba4 Nd4 Bb5 Ne2 Kb3 Kb1 Ka4 Nd4 Bc6 Nf3 Kb5 Nd4+ Kc5 Be8 Qdg3 Na1 Ba4 Bb5 Qc3 Bd3 Qc4 Bc2 Bd7 Ba4 Qd3+
5Q1R/2bQ1p1N/b1pp1Pq1/n4NNR/K2bPkB1/3n4/1b4Rp/1rn2n2 b - - 0 1 legal: proof: c4 d5 b4 dxc4 d4 Kd7 d5 a5 d6 axb4 Bf4 Kc6 d7 Kb6 Nc3 Kc5 Nb1 Kc6 g4 h5 Qb3 h4 Bd6 exd6 Qa4+ Kd5 Qb3 Ke6 Qd1 Ke7 h3 b5 Rh2 Qe8 Qd3 Rh5 gxh5 Kf6 Bg2 Qe5 Bf1 Ke7 Rh1 Qh2 Qc2 Ra3 Qa4 Re3 Qc2 Re6 Qa4 Rh6 Qd1 Rh8 Bg2 Qxh3 Bf1 Qh2 Kd2 Ke6 Kc2 Ke5 d8Q g5 a4 h3 e4 b3+ Kb2 b4 a5 c3+ Kc1 b2+ Kc2 b3+ Kd3 c2 Kc4 c1B Kb4 g4 h6 g3 h7 g2 a6 Nd7 f3 Be7 a7 Ba6 a8N Kf4 Qe8 Nc5 Qd8 Nd3+ Ka4 Qg3 Be2 Qg6 Na3 b1N Nb5 b2 Ra2 Nd2 Nb6 b1N Qf8 Bd8 Nd7 Nb3 Nf6 Ne7 Nd4 Bb2 Nf5 N1d2 Qf1 Rg8 h8R Nc6 Nh7 Nca5 Qc1 Rg7 Qc6 Nbc1 Qd7 c6 Qde8 Bd4 Rb2 Qh6 Ne7 Bc7 Qg8 Ke3 f4 Ncb3 f5 Kf4 Rc2 Bb2 Nf3 g1B f6 Bgd4 Nf5 Rg1 Qd7 Rb1 Qf8 Qg6 Nfg5 Nf1 Bg4 Nbc1 Rg2 Qg8 Rg3 Qg7 Rh2 Qg6 Rhg2 h2 Rh3 Ne3 Rh4 Nf1 Rh5
2r1NqbQ/Bb5p/1nB1P2n/2bnp1P1/QQpB3p/1rR4K/N6p/6k1 b - - 0 1 illegal: No proof kernel
4KbQN/2b2nP1/1P2NQ2/1rRpR1N1/B4prp/1b4Qb/p3p2k/2q1n3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 f4 g5 e4 fxe4 h5 b5 axb5 Qc7 f5 Qh2 Bf4 gxf4 Ne2 Qxh5 Ng1 Qh2 Kf2 Kf7 c4 Kf6 b4 Kg5 f6 Kh4 f7 d5 c5 e5 b6 h5 c6 a5 c7 e3+ Kf3 d3 g4 e2 b7 e1B b5 d2 g5 a4 b6 a3 g6 a2 g7 Ra6 Bb5 Bd7 c8Q Bf5 Qe6 Nd7 b8Q Nc5 Na3 Nh6 Ba4 Nd3 Nh3 Qg1 Nc4 Ra5 Rc1 Rb5 Ng5+ Bh3 Qb3 Bf2 Qa8 B2c5 Qf6 Bcd6 Rh2 d1B+ Re2 Bc7 Nd6 Qe1 Rc5 Qg1 Qc3 Bb3 Re4 Qc1 Re3 Be7 f8N Nf7 Nfe6 Bf8 Qb8 Rh6 Qc8 Rg6 Qa8 Be7 Qg8 Bf8 Re2 Nd8 Ndf7 Ne1+ Kf2 Kg4 Nh8 h4 Re3 Nf7 Ke2 Ng2 Kd3 e4+ Kd4 Ne1 Re2 e3 Qd3 Nd6 Ke5 Kg3 Qc3 Ng2 Qe1+ Kh2 Qg3+ Kh1 Nf3 Rg4 Nfg5 Nf7+ Kf5 Ne1 Kg6 Qd1 Rec2 Qa1 R2c3 e2 Re3 Qc1 Re5 Nd6 Qf3+ Kh2 Qc3 Nf5 Kf7 Nh6+ Ke8 Nf7 Qg3+
3b1B2/2kQ1BR1/p6r/P6n/1p1Q2b1/Pn1rR2R/pN1p1Kpn/2B3rb b - - 0 1 illegal: No proof kernel
2N3n1/2bpQ1K1/Bn3P1R/rRp3p1/rnp1Nk1p/PQQq2r1/8/3R1n2 b - - 0 1 legal: proof: c4 a5 g4 g5 d4 e5 b4 exd4 Bd2 b5 h4 bxc4 b5 f6 Bb4 axb4 h5 Bb7 Nc3 Be4 Nb1 Bg6 hxg6 f5 Qd3 fxg4 Qb3 Bd6 Qd1 Bf8 Kd2 Ke7 e4 Kd6 f4 h5 a3 c5 g7 g3 f5 Ke5 b6 b3 b7 d3 Ke3 b2 Nf3+ Kd6 e5+ Kd5 e6 g2 e7 g1R e8Q d2 Nc3+ Kd6 Ke4 b1N Nh4 Qf6 Bg2 Na6 b8R Qg6 Rb5 Nb4 Qb3 d1N Rh3 Qh7 Ng6 Ra4 Ne7 Ne3 Bh1 Ned5 Nc8+ Kc6 Ke5 Nd2 Rc1 Nf1 Qe7 Rg3 Ne4 Nb6 Rd1 Qg6 Nf2+ Kc7 Bb7 Ra5 Ne4 h4 Ba6 Qh7 Rh2 Qg6 Rhd2 Ra4 Rd6 Ra5 Qf7 Be7 Qc3 Bd8 Qe7 Qh7 Rh6 Qg6 f6 Qh7 Nf2 Qd3 Ne4 Kc6 Kf5 Kd5 Kg6 Bc7 Qb3 Kd4 Qe5+ Ke3 Qec3 Kf4 Kf7 Ne7 g8Q Ra4 Qg7 Re8 Qh7 Ng8 Kg7 Ra5 Ncd6 Ra8 Nc8 Ra4 Kf8 Ra7 Qe7 Ra8 Kg7 Ra7 Bb7 R7a5 Ba6
B1k1N1nb/N2b2Qq/2br1bP1/1P1Q1p1r/1p3BpR/2Q1K3/q2p3p/2N5 b - - 0 1 illegal: No possible last move
RB6/1np1qp2/n1k2Pr1/1b2rnp1/q2PQ3/1p6/RN1Q1pnQ/K5NN b - - 0 1 legal: proof: g4 a5 b4 axb4 c4 d5 g5 dxc4 a3 b3 g6 b2 Nh3 hxg6 Ng1 g5 Bg2 g4 Bh3 Qd7 Bf1 Qd8 f4 b5 f5 b4 f6 b3 Bg2 e6 Be4 Bc5 Bf5 Bb4 axb4 exf5 h4 Kd7 e4 g5 h5 c3 b5 g3 b6 c2 h6 g2 e5 f4 e6+ Kd6 h7 f3 e7 Na6 e8N+ Kc6 b7 Qd3 b8Q Qd5 Na3 b1Q Rh2 Qc5 Nd6 Nh6 Ne4 Bd7 Nf2 Nf5 Qb4 Qa2 Nc4 Qa4 Nh1 Rhg8 h8Q Rg6 Nb2 Re8+ Qe2 Re5 Qee4+ Qd5 Ra2 f2+ Ke2 Be8 d4 Bd7 Kd3 Be8 Bd2 c1N+ Kc3 Nd3 Bf4 Ndc5 Rh7 Re7 Bd6 Nb7 Bc5 Re5 Ba7 Bd7 Bb8 Be8 Nf3 g1N Rh2 Nh3 Ng1 Nf4 Rh7 Ng2 Rg7 Nge3 Rg8 Ng2 Qh2 Nfd6 Nc4 Nf5 Kb2 Bd7 Ka1 Be8 Nb2 Bd7 Qg4 Qd6 Qd2 Qe7 Qgh4 Kd5 Rf8 Bb5 Qe4+ Kd6 Ba7 Kd7 Ra8 Kd6 Bb8 Kd7 Qee2 Kc6 Qe4+
Q3n2b/2b1K2N/Q2pB1P1/1pqbR1QP/3k3p/2p1R1np/1b2p2N/1N1r4 b - - 0 1 illegal: No proof kernel
1Qr3n1/R2QpQrq/2B3qb/3P1r2/nb1NP1R1/kq3NKb/1qn5/1N3q2 b - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Ba3 h4 Bb2 dxc6 Bf6 c5 Be5 c4 Bg3 hxg3 h4 Kd7 e4 Kd6 a4 Kc5 f4 b5 a5 g5 a6 g2 Kf2 g3+ Kf3 g4+ Ke2 c3 h5 b3 d4+ Kb4 h6 c5 a7 b2 h7 c4 f5 c2 f6 c1Q f7 c3 d5 c2 Rh5 Bh6 f8Q Nd7 Re5 Nb6 Ra3 Na4 Nd2 b1N Re3 Qb2 Rg5 c1Q Rg7 Na3 Qe1 Nc2 Ngf3 g1Q Bh3 g2 Qh4 g3 Nb3 Ka3 Be6 b4 Nbd4+ b3 Bf7 Bh3 Qg4 Rc8 a8N Qh2 Nc7 Qd6 Qd7 Qg6 Be8 g1R+ Kd3 g2 Ke2 Qh1 Qf7 Rf1 Rc3 g1B Rc6 Bh2 Ra6 Bd6 Ra7 Rg1 Kf2 Bb4 Qf4 Rg5 Qf7 Rf5 Ncb5+ Ka2 Nc3+ Ka3 Qf6 Qca1 Qg5 Qaf1+ Kg3 Qa2 Qg4 b2 Qe6 b1Q Qf7 Qbb2 Bc6 Nf6 Rg8 Qab3 Rg7 Rhg8 h8Q Qh5 Rg5 Rg7 Qhe8 Qg6 Nb1+ Ka2 Qf4 Ng8 Rg4 Qh2+ Kh4 Qhh1 Qd7 Qh2 Nbd2 Ka3 Qb8 Qhe2 Kg3 Qh7 Ba8 Qa6 Bb7 Qf6 Bc6 Qfg6 Nb1+
2n3K1/2Qq3N/P3Rpb1/1n1bQ3/b4P2/b1rQ1N2/r1B2Bk1/rbq2bBb b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 exd4 g5 c5 g6 c4 Ra3 hxg6 Kd2 g5 Ke1 g4 Rd3 cxd3 Kd2 Ke7 h4 Ke6 c4 Kf5 e4+ Kf4 h5 b5 a5 g5 e5 d5 e6 g3 f3 f6 e7 b3 e8Q b2 c5 g2 h6 Kg3 c6 b4 c7 b3 f4 g4 h7 Na6 Qe7 Be6 c8Q Qd7 Nf3 g1R Qc3 Nc7 Bh3 Nb5 Qe8 Ba3 Rh2 Ne7 Rf2 Nc8 Qc6 Rg8 Nc3 b1B h8B b2 Rf1 Bc2 Qa6 b1B Ke1 d2+ Ke2 d3+ Ke3 d4+ Ke4 Rg2 Qe2 d1B Qc6 d2+ Qd3 Be2 Re1 d1B Qc7 Bf1 Bg7 Bea2 Qe6 Bd5+ Kf5 Ba4 Kg6 Ra2 Kh7 Bdc2 Bg2 Re8 Qef5 Re3 Qfe5 Kf2 Kh8 g3 Bf8 Ra6 Bh3 g2 Bf5 g1Q Bc5 Kg2 Ne4 Ra8 Neg5 Ra7 Qc4 d3 Nh7 d2 Qd3 d1B Bb2 Ra1 Bbd4 Ra6 Nh2 Rg3 Bf2 B1f3 Bg6 Qh1 Bg1 Bfe4 Bcf2 Re3 Nf3 Ra7 Qd2 Rc3 Qd3 Ra2 Bf7 Bg6 Kg8 Bcb3 Re3 Ba8 Re2 Bbd5 a6 Bde4 Nhg5 Rc1 Qcc5 Rc7 Bc4 Bad5+ Qe6 Bbc2 Nh2 Rca1 Bb3 Bb1 Bc2 Rc6 Re1 Be2 Nh7 Rc7 Qd6 Rc3 Qc7 B4f3 Bd4 Kg3 Bge3 Bg2 Nf3 Qf1 Bb6 Bh1 Bg1 Kg2 Ba7 Rb2 Baf2 Rba2 Qd4 Bec4 Re3 Be2 Qd3 Qc1 Re4 Bf1 Re1 Bc6 Qef5 Ba8 Re6 Bd5 Qfe5
1NRnQ2b/2nr2R1/q4NQb/k1bPpq2/1n6/2QqPbK1/R4r2/2nB2b1 b - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Ba3 h4 Bb2 dxc6 Bf6 c5 Be5 c4 Bg3 hxg3 f4 Kd7 d4 Kc6 a4 Kb6 h4 g5 h5 c5 h6 c3 h7 c2 d5 c1N f5 c4 f6 c3 f7 g2 Kf2 g3+ Kf3 c2 Nd2 g4+ Kf4 b3 Ndf3 b2 Nd4 b1Q Nh3 g1B Qd3 g2 Qd2 g3 Ra2 Nh6 Nb5 Qd6+ Kf3 Bc5 Ng5 g1B Rh4 g2 Re4 Ra7 Nc3 Nd3 Qf4 c1N Qe3 Nb4 Re5 N8a6 Qd3 Nc7 Kg3 Ka5 Ne6 b5 Qg6 Qf5 Nd8 Bgd4 e3 g1B Ne4 Qa6 Nf6 Qd3 Re4 Bg4 Be2 Bf3 Bd1 Bg7 f8R Nf7 Rf4 Bh6 Rg4 e6 Re8 Rf8 h8Q Ba1 Nh7 Bag7 Nf6 e5 Nc6+ Kb6 Qg8 Nd8 Nb8 Bh8 Qe6+ Ka5 Qc8 Nc2 Rg5 b4 Rg4 b3 Rg5 Kb4 a5 b2 Rg4+ Kb5 Rg5 b1Q Rg4 Qe6 a6 Nb4 Rg5 Rb7 a7 Qa6 a8Q Qf5 Rg4 Qbd3 Rg5 Qb6 Qa3 Qa6 Qc3 Rf7 Rg8 Ra7 Qe6 Rd7 Qee8 Kb6 Rb2 Ka5 Rg4 Rb7 Rc4 Rb6 Rg7 Re6 Rc2 Ree7 Rd2 Rf7 Ra2+ Kb5 Qh7 Na8 Qhg8 Bb6 Rh4 Bg4 Rg5 Rg7 Rg6 Bf3 Rc4 Ba7 Rc7 Bc5 Rc8 Nc7 Kh4 Kb6 Rg3 Rg5 Rg4 Rh5+ Kg3 Rh2 Qgf7 Rf2 Rg7 Kb5 Qg6 Kb6 Ba4 Ka5 Bd1+
2n1qQ2/k1p1Q1bQ/2NB3N/2q1bP2/B1P2B1n/1n1qR1q1/b2b2r1/1r2b2K b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 a4 hxg4 e5 f5 e6 f4 Ra3 dxe6 Be2 e5 Bf1 e4 Rg3 fxg3 f4 Kd7 d4 Kc6 h4 Kb6 h5 e5 d5 g5 f5 g2 Kf2 b3 d6 b2 c3 e3+ Kg3 e2 Kh2 e1B d7 e4 h6 g3+ Kh3 e3 h7 e2 a5+ Ka7 a6 b5 Bf4 b4 Nd2 b1N Nc4 b3 Qc2 b2 Qd3 Bg7 Qc2 Ne7 Ne3 g4+ Kh4 Nd2 Nc4 b1Q Na3 Nbc6 Qd1 Qd3 Nc4 Nb3 Na5 Qe8 d8B Rg8 h8Q Be6 Qh7 Ne5 Nh3 g1B Nf2 g2 Rh3 g3 Ng4 Rb8 Nh6 Nc8 Be7 Bd4 Bd6 Bd2 Qe1 g1Q Bg2 Qge3 Bc6 g2 Ba4 Nf3+ Kg3 Nh4+ Kh2 Bde5 Rf3 Qc5 Re3 g1B+ Kh1 Bf2 Qg1 Bfe1 Qg5 Na1 Qd8 Ba2 c4 Rb1 Qe7 Nb3 Rf3 Bh8 Re3 Rg2 Nc6+ Ka8 a7 Bhg7 Nd4 Kb7 a8Q+ Kb6 Qf3 Ka7 Nc6+ Ka6 Qd5 Kb7 Bh2 Bf2+ Bg1 e1Q Qdf7 Bfg3 Qff8 Qf2 Qg6 Qf3 Qh7 Bge1 Bh2 Kb6 Nb8 Ka7 Bf4 Qg3 Nc6+
1B2N1BK/p1nn1R2/b6Q/1b1q1qbQ/P1r5/1kP3Nn/1bQ1r2B/1r1nn3 b - - 0 1 legal: proof: e4 c5 b4 cxb4 a4 d5 g4 dxe4 g5 h5 g6 h4 Ra3 fxg6 Ra2 g5 Ra3 g4 Rg3 hxg3 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 b5 Kg6 e5 h4 g2 f4 g3 d4 e3 c3 b3 h5 b2 f5 e2 f6 Kc4 f7 e4 h6 e3 d5 b4 d6 b3 d7 Ne7+ Kh5 g5 h7 g4 Rh4 Nd5 Kg6 Nc7 Qd6 Ba6 Qf6 Ba3 Kg7 Re8 Nh3 g1Q h8B g2 f8Q Qf2 Rh6 g1N Qg5 g3 Qh5 g2 Qf6 Qf5 Ng5 Nh3 Bd2 g1B Bg2 e1N Rh7 e2 Nf7 Be3 Qfg6 Bg5 Qgh6 Nc2 Bf4 e1N Bh2 Re2 Bc6 Ne3 Nd6+ Kd3 Bf3 Kc2 Nd2 b1B Ne8 b2 Ne4 Kb3 Ng3 Bbd3 Bd5+ Bdc4 Kg8 b1R Be5 Bb2 Kh8 Nd1 Bg8 Bb5 Rg7 Ba6 Rf7 Bcb5 Qh4 Qc8 d8Q Nd7 Q4h5 Qb7 Qdf6 Rc8 Qfg6 Qd5 Bd6 Na8 Be5 Rc4 Bb8 Nc7 Qgh7 Qf4 Qe4 Qff5 Qc2+
n1qb1nnr/KBQQ3q/p1N2Nq1/R4b2/1b6/P4Bb1/3Pq2b/rQk3B1 b - - 0 1 legal: proof: c4 d5 f4 b5 e4 bxc4 g4 dxe4 b4 g5 Na3 gxf4 g5 h5 Rb1 Bh3 Rb3 Bg4 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 h4 Ke6 g6 Kd5 h5 Kd4 g7 e5 h6 c5 b5 f5 b6 f3 b7 e3+ Ke1 f2+ Ke2 c3 h7 e4 Rh6 c4 Nb1 c2 Nh3 f4 Rc6 c3 Na3 g3 Rc5 g2 Rb5 g1B Re5 Nd7 b8Q Qg5 Nb1 Bh2 Na3 Bb4 Qb5 Qg6 Qa5 Nf8 Nc4 Bf5 Bb2 c1Q Ba1 Qb1 Nb2 c2 Ng5 c1Q Bg2 f1N Bh1 Qc8 Nd3+ Kc4 Bd4 f3+ Ke1 e2 Kf2 Qc2 Qb1 Ne3 Bc5 Nd5 Qc7 Nb6 Ke3 f2 Bf3 e1B a3 f1Q Qd7 a6 Bd4 Ra7 Ra5 Rc7 Bc5 Bh4 Bd4 Be7 Nb4 Na8 Nc6 Rb7 Ba7 Rb2 Qc7 Kb3 Kd4 e3 Ne4 e2 Nf6 e1B Kd5 Qe2 Bg1 Beg3 Qd7 Nh6 g8B Bb4 Be6 Ng8 Qc7 Qb7 Bc8 Qb8 Bb7 Qc8 Ne4 Bd8 Nf6 Bc3 Kc5 Qcd3 Qf1 Kc2 Qd7 Ra2 Qe1 Nc7 Kb6 Bb4 Ka7 Na8 Qa1 Qde4 Qe5 Ra1 Qec7 Nh6 Qdd6 Kc1 Qdd7 Rg8 h8Q Qc2 Qhh7 Rh8 Qhf7 Ng8 Qb3 Qce4 Qbd3 Qe7 Qe4 Qeh7 Qb1+
b2rB2r/7R/1n1QqBbN/K3nPp1/N3b1P1/2r1b3/1B1b2Nk/1Qb1b1r1 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 g4 h5 b5 h4 b6 axb6 Ra3 b5 Rb3 b4 Rg3 hxg3 Kd2 Kf7 c4 Kf6 f4 g5 h4 d5 h5 e5 a5 b5 c5 g2 a6 b3 h6 d3 Kc3 e3 Kb4 d4 h7 e2 a7 e1B+ Nd2 b2 Nh3 g1B Qc2 b1B Qc3 e4 Nb3 d2 Qc4 d1R+ Nd2 d3 Qc2 e3 Rh2 e2 Qa2 Qe8 Ka5 b4 c6 b3 c7 b2 Qb3 Ne7 Bg2 Bb7 c8N Ng6 Qc3+ Ne5 Qb4 Nbd7 Qd4 Nb6 Nf2 Qe6 Nh3 Ba3 Bc6 Be3 Ne7 Rac8 Qd6 Ba8 Be8 Rc3 Nb3 d2 Nf5 Bbe4 Nh6 b1B Bb2 Rdc1 Rh1 d1R Nc5 B1d2 Na4 e1B Rh2 Bg6 f5 Bbe4 Nf4 Ra1 Ng2 Rab1 Ba1 Bac1 Rh4 Rb4 Bb2 Rd4 Qb4 Rd8 Qd6 Bg3 Rh5 Rg1 Rh2 Bge1 Rh5 Bab7 a8Q Bbd5 Qa6 Ba8 Qdd3 Nf7 Qb1 Ke5 Nh4 Kf4 Ng2+ Kg3 Rh4 Rf8 h8B Ne5 Bf6 Rh8 Rh1 Nd5 Qd6 Nb6 Ng8 Qd7 Rh7 Qe6 Nh6 Kh3 Ba3 Kh2 Bb2
2K5/q1b1qbrB/1Q2p1r1/1nR1P3/1Pb4q/2N1NR1r/1nnnrQ2/k3R1N1 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Bh6 h4 Bd2 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 d5 c4 a5 h4 g5 e4 d3 b4 a3 h5 d4 h6 g2 f3 e6+ Kb5 g3 h7 a2 c5 g4 c6 a4 c7 a3 Kb6 d2 Bd3 Bd6 Bb5 d3 f4+ Kd4 f5 Nf6 e5 Ba6 Be8 Bc4 Kb7 Na6 c8Q Nc7 Qc2 d1N Rh3 d2 Qb3 Nb2 Qd1 Ne4 f6 Qe7 f7 Nb5+ Bd7 Bc7 Qf1 d1B f8N Nd2 Rh5 Ra4 Nh3 g1Q Rh6 g2 Rh4 Qh1 Qe2 g1R+ Bc6 Qe4 Qa8 g3 Qa5 g2 Rh5 Q4h4 Ng6 Bc2 Ngf4 Bg6 Nc3 Bf7 Rc1 a1N Be4 a2 Re1 Nc2 Nfd5 a1Q Ne3 Ra3 Qf2 Ra2 Bd5 Kd3 Rf5 Kd4 Rf3 Kd3 Ne4 Kd4 Qb6+ Kd3 Nd6 Kc3 Ne4+ Kb3 Qf1 Qd7 Re2 Nd1 Qa6 Kb2 Ng4 Qhd8 Rf4 Nf3 Nd2 Bg6 Re3 Ncd4 Qf2 Bb8+ Ka8 Qg5 Rf8 Qh5 Rc8 Bf7 Rc5 Bc7+ Kb7 Qe7 Ne4+ Kb1 Bc6 Re2 Qb6 Nd2 Rf3 Nb2 Ne3 Nc2 Bd5 Qa4 Nc3+ Ka1 Be4 Qa7+ Kc6 Rg8 h8R Rg7 Rh6 Rb1 Bh7 g1R Rg6 Rh1 Rg1 Qhh4 Rd1 Rhg1 Rc1 R1g6 Rd1 Qa2 Kb7 Qa7+ Kc8 Rc1 Rg1 Rd1 Rg4 Rh1 Rg1+ Re1 Rf1 Rh2 Ng1 Rh3 Ned1 Re4 Re1 Re2 Ne3+
8/q1QbNr2/bP1kBrQ1/6K1/1N1nqnR1/r1Q1pN2/rBqbP3/1b2n3 b - - 0 1 legal: proof: d4 b5 b4 c5 a4 bxa4 g4 cxd4 g5 f5 g6 f4 Ra2 hxg6 Ra3 g5 Rh3 g4 Rg3 fxg3 Kd2 g5 f4 e5 c4 Ke7 h4 a5 h5 d5 c5 e4 c6 a3 h6 a2 c7 a1N f5 a4 h7 g2 b5 a3 Nh3 g1R Rh2 g3 Nf2 g4 Nc3 g2 Nh1 g3 Rh5 a2 Rh4 d3 Ke3 d2 Kf4 d4 Na4 d3 Nb6 Qd4 Kg5 Nc2 Rh6 a1R Rg6 Ne1 Qb3 d1B Kh5 d2 Kg4 Bc2 Qd3 d1B Rc6 Bb1 Qb3 R8a3 Qa4 Nf6+ Kg5 Nd5 Bb2 R1a2 Nc4 Ba6 Qa5 Ba4 c8N+ Kd7 f6 Bb4 f7 Rf8 Rh6 Nc6 Rh4 Bd2+ Rf4 Qa7 Ne7 Nd4 Ne5+ Kd6 Nf2 Rh1 Nfd3 g1Q Bh3 g2 Bd7 Qe3 Be6 Rh6 Nb4 Rf6 Qb6+ Nc6 Qb7 Nd4 b6 Bd7 Qc8 Qb3 Qc4 e3 Rg4 g1Q Qc2 Qh1 Qc1 Qe4 Nf3 Nf4 h8Q Rh6 Qc8 Nb5 Qhc3 Qbc2 Qd8 Nd4 Qdc8 Rfh8 f8Q R8h7 Qf7 Rf6 Qg6 Rhf7 Q8c7+
n1R1n1rn/2b3Qr/8/q1Pq3Q/N1bpR2q/k2PRKBn/1b1b1QB1/7r b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Na3 c4 Nb5 hxg6 Nd4 g5 Nb3 cxb3 Ba3 g4 Bb2 Bd6 Bc1 Bf8 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 f5 c4 g5 h5 b5 d3 d5 h6 g3+ Ke2 b2 e5 b1Q e6 g4 a5 g2 a6 b3 h7 Kb4 c5 f3+ Kf2 b2 e7 f4 e8Q g3+ Ke1 f2+ Ke2 f3+ Ke3 Bg7 a7 Nh6 Ra3 Be6 Ra1 Qa5 Qc8 Na6 Qb7 Qba2 Ne2 b1R Qe7 g1B Qd7 g2 Nf4 Nf7 Ng6 Rag8 a8R Nc7 Bb2 Bh2 Nf4 g1B Bc1 Bb2 Bg2 f1Q+ Kd2 f2 Ke3 d4+ Ke4 Ne8 Bf3 Bc4 Bh5 Ka3 Ng6 b4 Qe2 b3 Nh4 Bc7 Bf4 Qh3 Ng2 f1N Rd8 Nh2 Ne3 Ng4 Bg3 Nf2+ Kf3 Qh4 Nd5 Nh3 Rc8 Be3 Nb6 Bd2 Na4 Re1 Rh2 Rh1 Rd1 Rg7 Re1 Rhg8 h8Q Rh7 Qhe5 Nh8 Bg4 Ba1 Rf2 b2 Qh5 b1N Qg7 Bb2 Qf1 Qb3 Rfe2 Nc3 Qf2 Nd5 Re4 Nb6 R1e3 Na8 Bd7 Nf4 Bh3 Qa2 Bf1 Nh3 Bg2 Qb3 Qe1 Qb7 Qf1 Qd5 Qf2
K1n3qN/QrQ1r2p/1b1B4/nnqbR2P/2q4P/6B1/Nkq1N3/rr4bB b - - 0 1 illegal: Other
5n2/KRpQBr2/BN1nQ1bb/k5r1/3n3q/n3B3/1PPn1brr/N3bN2 b - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 g5 bxa4 g6 f5 Nh3 f4 Ra3 hxg6 Rg3 fxg3 Ng1 g5 Bc4 g4 Bb5+ Nc6 Bf1 Nb8 Ke2 Kd7 Ke3 Kc6 h4 Kb6 f4 a5 d4 e5 h5 g5 f5 g2 d5 a3 h6 g3 f6 a2 h7 a1N f7 a4 d6 a3 d7 g4 Nd2 a2 Nb3 Bh6+ Ke2 e3 Kd3 e2 Kc4 e1N f8Q e4 Ne2 g1B Bg2 e3 Rh4 Bf2 Na5 Nb3 Nc6 a1N Ne5 Nd4 Bb7 g2 Qb4+ Nb5 Nc6 g1R Rh5 g3 Qdd6 g2 Qc3 Ne7 Ng3 e2 Qb3 Nf5 Nf1 Qh4+ Nd4+ Ka5 d8B Nd7 Ba6 Nf3 Be7 e1B Be3 Nf8 Qd7 Nfd6+ Kc5 Bb7 Qbe6 Be4 Rg5 Bg6 Kc6 Nd2 Nb3+ Ka4 Rc5 Na3 Rb5 Rb8 Rb7 Re8 B7g5 Re7 Bf6 Rf7 Be7 Rg8 h8N Rh1 Qh3 g1R Qhe6 Bh7 Ng6 Rh2 Nf4 R1g2 Nd5 R8g5 Rb8 Bg6 Rb5 Nf5 Kb7 Nd6+ Ka8 Nh7 Ka7 Nf8 Nd4 Nab3 Rb7+ Ka5 Nb6 Nc5 Ne2 Ncb3 Nc1 Nd4 Nb3+ Kb4 Na1 Ka5 Bc4 N2b3 Be2 Nd2 Ba6
Q1bbN2q/BR1p1rnP/1n1P4/1rbp3q/r3N1k1/3KQrrQ/4B3/5nB1 b - - 0 1 legal: proof: b4 f5 d4 h5 g4 hxg4 e4 fxe4 a4 a5 d5 axb4 d6 c6 Ra3 Nf6 Rd3 Ng8 Rd5 cxd5 Kd2 Kf7 f4 Kg6 c4 Kf5 h4 g5 a5 b5 h5 e5 h6 g3 c5 g4 a6 e3+ Ke2 g2 a7 g3 c6 b3 c7 b2 h7 e4 Qd3 b4 Qd4 b3 Qc3 Nh6 Rh5+ Kg4 f5 Na6 f6 Nf5 f7 Nc5 Rh3 Na4 Qc2 Nb6 Qd2 Be7 f8B Ng7 Nf3 g1B Nh4 g2 Nc3 b1R Qd1 b2 Ke1+ e2 Kd2 Bc5 Re3 g1R Qe1 Rg3 Nf5 Qe8 Rf3 e3+ Kd3 Bd8 Ne4 Qh5 Qc3 e1Q Be2 Qf2 Be7 Re8 Bf6 Re7 Bd4 Rf7 Bd2 Qfh2 Be1 Q2h4 Bf2 Qf6 Bg1 Rf1 Qc1 b1N Qd2 Rb8 a8Q Qe5 Qc3 Nd2 Qca3 Ra1 Rf1+ Rf3 Rb1 Nf1 Qc1 Ra4 Rb2 Bb7 c8Q Qe8 Qc6 Qh8 Qb5 Bc8 Qb3 Ne8 Ng7 Rb7 Bd1 e2+ Qe3 e1R Be2 Rea1 Qc3 R1a3 Rb4 Nc7 Rb3 Ne6 Ne8 Ng7 Rb2 Nc4 Rb1 Rb5 Rb2 Bb4 Ba7 Bc5 Rb4 Nb6 Rc4 Bd4 Rc7 Bc5 Rb7 Ra2 Bd1 Rg2 Be2 Rg3 Qf6 Qf5 Qh6 Qg6 Qh1 Qh5 Qh3+
q2bN1n1/NR3rpR/4B1r1/P4rQ1/K3N2p/3krq2/2Q3bP/1q1rRnn1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Bd2 e4 Bh3 e3 Kf1 exd2 Kg2 fxg6 Kg3 g5 Bf1 g4 Kg2 Ra6 Kg3 Ra7 Kg2 Ra8 e4 Ke7 a4 Ke6 c4 Ke5 f3 b5 Kf2 d5 Ke2 h5 Kd3 h4 Kc2 d3+ Kb3 Kd4 c5 g3 a5 g2 e5 Ra6 e6 Nd7 f4 Ne5 c6 Nc4 f5 Be7 c7 Bb7 c8Q Ne3 f6 Rh5 f7 Rf5 Qdc1 d1Q+ Q8c2 d2 f8R Qf3 Ra2 d1R Qa3 Re1 Rb2 Qa8 Bd3 Bd8 e7 Nf1 e8N Rg6 Qf2+ Re3 Nh3 g1N Nc3 Rf7 Bb1 Bc6 Rc2 Kd3 Ng5 d4 Nge4 Rf5 Ba2 Bb7 Kb2 b3 Qe7 b4 Nb5 Bc6 Na7 Bd5 Kb1 b2 Rc7 Bc6 Bd5 Rf7 Ka2 b1R Qf6 b3+ Ka3 b2 Rb7 Rd1 Qe5 b1Q Be6 Rc1 Qa2 Rc5 Qg5 Rcf5 Qb3+ Ke2 Qc3 d3 Qc4 Bd5 Qc2+ d2+ Ka4 Rd3 Qc3 d1R Qb3 Re3 Qc3 Nh6 Rh8 Ng8 Qc7 Kd3 Rh7 Ree1 Qc8 Re3 Qc2+ Kd4 Qc6 Qf4 Rb3 Nf3 Nf2 N1d2 Re1 Nf1 Rc3 Ng1 Rb3 Bg2 Rb7 Qf3 Ne4 Kd3 Qc2+
n2R4/1rknQNp1/1r3p2/3bqb2/4NP1q/Kb3qPB/nN1bR3/b2R1Q2 b - - 1 2 legal: proof: d4 a5 Kd2 c5 b4 e5 g3 h5 Bh3 e4 Be6 cxd4 Qf1 axb4 Qg2 e3+ Kd3 h4 Bd2 exd2 Bh3 Be7 Qc6 Bf8 Bf1 h3 Qg2 hxg2 Kc4 d1Q Kb3 b5 e4 d5 f4 Kd7 h4 d3 a4 d4 a5 d2 h5 d3 a6 Bb7 e5 Bd5+ Kb2 b3 c4 b4 e6+ Kc7 c5 Ra7 e7 Nd7 e8R Ne7 h6 Qf3 c6 d1B h7 d2 Rh6 Nc8 Rh2 Qh4 Rh3 f6 Re4 Ncb6 Nc3 Na8 Re2 Rb7 a7 Qe3 Rc1 Qe5 Nf3 g1B Ne1 Bd4 Nd3 Bd6 Rh1 Rhb8 h8N Bc2 Nf7 d1Q Ra1 Rb6 Ra6 R8b7 Bh3 Qf1 Ra5 Qf3 Rd1 Be3 Rc5 Bd2 Rc4 Bc5 Rce4 Bf2 Rd4 Bfe1 Ne4 Bc3+ Kc1 Ba1 Nb2 Bc3 Nd2 Bf5 Ne4 Bd2+ Kb1 Kc8 c7 Bfe6 Nc4 b2 Ka2 b3+ Ka3 b1B Nb2 Bf5 Rc4 Ba2 Rc6 Nb8 Re6 Kd7 Re8 Kc6 Rd8 Nd7 Nd3 b2 c8Q+ Nc7 a8Q b1N+ Ka4 Nc3+ Ka3 Bab3 Qa7 Na2 Nb2 Qh8 Qa6 Qh4 Qb8 Na8 Qba7 Kc7 Qb5 Re6 Qac5+ Rc6 Qe7 Rcb6 Qd3 Qfh5 Qf3 Q5g4 Qf2 Qf3 Qf1
4KB2/5Rbb/2r5/q1rn1pbp/2q3P1/2nQQPN1/NN1rR3/b2Rbkq1 b - - 0 1 legal: proof: c4 g5 d4 d5 a4 b5 h4 gxh4 e3 bxa4 Be2 e6 Bf3 dxc4 d5 Ke7 d6+ Ke8 Bd5 exd5 Kd2 Kd7 Kc3 Ke6 Kd4 Kf5 Kc5 Ke4 b4 a5 g4 h5 b5 c3 b6 h3 b7 a3 Ne2 Kf3 e4 Kg2 e5 d4 f3 a2 e6 c2 e7 d3 e8R d2 Ng3 h2 Rhe1 h1Q Ne2 a4 Ng1 a3 R1e3 Nc6 b8Q Bf5 Re1 Nce7 d7 Bg7 Qb2 Rh6 Qb4 Ra5+ Qb5 Bh7 Re4 f5 Re5 Nf6 Ne2 Qg1+ Re3 Nfd5 Ng3 Nc3 Qe1 d1R Nd2 Ned5 Nc4 Rd2 Rb1 a1B Re6 a2 Ba3 c1B Kc6 Bab2 Qa6 a1B Rf6 Rb5 Bf8 Rc5+ Kb7 c6 Rf7 Qa5 Kc8 Ba3 d8N Bb4 Re4 Rf6 Qe3 Re6 Nh1 Kf1 Kd7 Rd1 Qf4 Nb5 Nb7 Be1 Qg3 Bg5 Qf4 Rd2 Nb2 Rc3 Rd1 c5 Re2 c4 Qe3 Rc6 Nd6 Rcc2 Ke8 c3 Ne4 Rc1 Rh2 c2 Nc3 Rb1 Na2 c1Q Bd6 Qc2 Be7 Rc1 Bf8 Qb3 Rg2 R1c5 Re2 Nbc3 Qad3 Qc4 Ng3+
2RnN2q/2qR4/1pP1pr2/Q3q3/rq1q1bk1/1rQQR1b1/1PbBK3/4nN2 b - - 0 1 illegal: No proof kernel
3RK3/4B1P1/r1N1Q1r1/1p6/npkN3R/qn2Rq1b/nP1nN1Qb/3r1b1q b - - 0 1 legal: proof: h4 e5 f4 exf4 d4 g5 e3 gxh4 d5 a6 Bb5 axb5 d6 cxd6 Bd2 d5 Bc1 d4 Ke2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 h5 a4 d3 g4 f3 g5 h3 g6 h4 c3 d2 g7 b4 e4+ Kc4 a5 d5+ Ke5 b5 a6 f5 a7 d4 Ra2 f2 Ra6 f1N Qe2+ d3 Rh2 d1R Qh5 d2 Ra1 f4 Qe8 f3 Qg6 f2 Ne2 Nd7+ Ke6 Nc5+ Kf7 Nb3 e5 Nf6 e6 Rh6 e7 Qa5 e8R Qa3 Re3 Ne4 Nd4 Nec5 Ke8 Na4 Qf6 Bd6 Qe6+ Kc5 c4 Rg6 Rh1 h2 Nc3 h3 Nce2 Be5 Rg1 h1Q Rg4 h2 Rh4 Qf3 Ra2 Rb8 a8Q h1Q Qe4 Bg3 Q4g4 Bh2 Qg2 Ra8 Ra1 Re1 Rb1 d1N Bd2 Ndc3 Rd1 Bd6 Bc1 Na2 Rd2 Rd1 Rdd3 Kb6 c5+ Ka5 c6 Kb6 c7 Kc5 Rd2 Ra6 Rdd3 Bh2 Rd2 Bb7 c8N Be4 Rdd3 Nfd2 Na7 f1B Nac6 Bf5 Qd7 Bg4 Qe6 Nb1 Bd2 Bh3 Be1 N1d2 Bg3 Qd5 Bd6+ Kc4 Be7 Bf5 Nf3+ Bg4 Qf5 Qe4 Rd8 Bh3 Nfd4 Qf3 Qe6+
3Nq1Qn/pN2R1pP/4Bb2/1qrq1rn1/P3rB1K/2Q5/bN5k/1Qqn1b2 b - - 0 1 legal: proof: b4 e5 c4 f5 a4 b5 d4 bxc4 g4 exd4 g5 f4 g6 hxg6 Ra3 g5 Rb3 g4 Rg3 fxg3 f4 Ke7 h4 Kf6 e4 c5 h5 d5 h6 d3 f5 Ke5 b5 d4 b6 d2+ Ke2 Kf4 f6 c3 b7 c2 f7 g2 Kf2 d3 e5 c4 h7 c3 e6 Qd5 e7 Be6 e8Q Nf6 Qe2 Be7 f8Q Nc6 b8N Nd8 Ba3 c1R Bc5 d1N+ Ke1 Kg3 Qa2 c2 Qef7 d2+ Ke2 Ne4 Ba3 Ng5 Nf3 g1Q Nd7 Bf6 Q8g8 Qgc5 Nc3 Qb5+ Qc4 Rb8 Qg6 Ndf7 Bh3 Re8 Nd4 Re7 Rg1+ Kh2 Nc5 g3 Nb7 g2 Re1 g1Q Nc6 Qe3+ Kf1 Qee5 Ncd8 Qee4 Bd6+ Qee5 Qe8 Rf8 Bb8 Nh8 Bc7 Nb2 Kf2 d1B Re4 Bf3 Nd1 Bg2 Qc3 Bf1 Qf5 Rff7 Qg8 Qe8 Re2 Qdb5 Qfd3 Ba2 Be6 Qd6 Re5 Qdd5 Bd6 Nc4 Nb2 Ne3 Bf5 Re6 Re4+ Re5 Be6 Re1 Bb8 c1Q Qdc2 Rc7 Qb1 Rc5 Bd6 Kh1 Kg3 Nd1 Kh4 Rf5 Bf4 Kg1 Bd7 Kg2 Re7 Kh1 Bd2 Kh2 Be6 Re4+ Bf4+
Q1NN1bn1/2rRpBR1/4KN2/3nQ1R1/3P3q/rn2P1r1/qbb1p2k/2qq4 b - - 0 1 illegal: No extended proof kernel
qNQ5/B2b4/KR2Qp1p/2r1P3/b1rrbP1b/b4R1n/R5kn/1Qb1Nn2 b - - 0 1 legal: proof: c4 g5 d4 d5 b4 a5 h4 gxh4 e3 axb4 Bd3 e6 Be4 dxc4 d5 Bh6 d6 Bf8 Bd5 exd5 Ke2 Kd7 f4 Kc6 a4 b5 g4 h3 g5 c3 Kd3 h2 d7 b3 e4 b4 g6 b2 e5 h6 a5 d4 Kc4 c2 a6 b3 a7 d3 g7 d2 Ra5 Na6 Ne2 Nf6 g8Q Be7 Nec3 Nb4 Qg2+ Nbd5 Qh5 d1B Na4 Ng4 Nb6 Bh4 Qg1 f6 Ra1 Nde3+ Kb4 Nf1 Bd2 c1B Nc3 b1B Ka5 b2 Be3 Be4 Na2 b1R Qg2 Ba3 Rg1 h1N Bf2 Ngh2 Bd4 Rb4 Qb2 Ba4 Qe8 Rc4 Qb1 Nf2 Rg6 Nh3 Rg3 Rb8 a8R Rb7 Nd5 Rbb4 Ne3 Rf8 Nc2 Kd5 Rb8 c5+ Rb6 Rg8 Rf3 Rg3 Rf2 Rgc3 Qe7 Qe8 d8Q+ Bcd7 Be3 Rd4 Qc8 c4 Ka6 Rb5 Rf3 Rc5 Ne1 Rc1 Bg1 c3 Bf2 c2 Nb4+ Kc4 Nc6 Kd5 Ra2 Rcc4 Qc7 Qb8 Qc8 Qa8+ Na7 Bh7 Qe6+ Ke4 Bg1 Rc5 Rf2 Ke3 Rf3+ Ke2 Bf2 Be4 Qd6 Rdd5 Rb8 Rb5 Qe6 Rd3 Bc5 Rd4 Bb6 Rc5 Rb7 Qb8 Nc6 Qa8+ Ba7 Bg5 Rb6 Bh4 Rfb3 Kf2 Rf3+ Kg1 Nd3 Kg2 Nb8 Re1 Nb4 Rdc4 Ra1 c1B Nc2 Rd1 Ra2 Rdd4 Ne1+
2KB4/N2N2k1/r2prp1P/b2r3B/2RPn2n/4rBQ1/n1b1rb2/Q1Q1qr2 b - - 0 1 illegal: No possible last move
1B4nr/1p2Q1nq/2qbQN2/K1k1n1P1/2b4n/1pnn1RrB/1Pb5/1QNB4 b - - 0 1 legal: proof: f4 a5 h4 g5 a4 gxh4 d4 e5 d5 exf4 Ra3 c6 Rah3 cxd5 Rb3 d4 Rb4 axb4 Kd2 Ke7 g4 Kd6 c4 h5 e4 f5 e5+ Kc5 e6 d5 a5 f3 g5 f2 e7 d3 e8Q d4 a6 h3 a7 f4 Qee2 f3 Rh2 h4 Rg2 h2 Qe3 h1N Rg3 h3 Rg2 h2 Qde1 Qd5 Q3e2 Be6 Nh3 Nc6 Na3 Bd6 Ng1 Ne5 Rg4 Qc6 Bh3 f1Q Qe4 f2 Nb5 Ng3 Nc3 h1N Nd5 Nf5 Ne2 Ng7 Nf6 b3 Rg2 Rc8 a8Q Ng3 Qh7 Bf5 Qa1 Qh1 Qb1 f1B Rf2 Be4 Rf4 N3f5 Rf3 Nh4 Qf5 Rf8 Qe6 Bg6 Nd5 Rf4 Nf6 Rg4 Qe7 Rg3 Bg4 Bh3 Bh5 Be6 Bg4 Kb4 c5 Bc4 Bh3 Qa4 c6 Kc5 c7 Qc6 c8B Be4 Kd1 Bh7 Bf4 d2 Nc1 Bg6 Qd3 Be4 Ke2 d1N Kd2 Nc3 Qb1 Bc2 Bcg4 d3 Bh5 Nd5 Qe6 Nb4 Kc3 d2 Qe4 Nbd3 Qe7 Qe1 Qf5 Qee4 Qfe6 Qh7 B5g4 Kb6 Bh5 Nc5 Kb4 d1N B5g4 Nc3 Bh5 Nb5 B5g4 Ncd3+ Ka4 Kc5 Ka5 Kd4 Re3 Kc5 Bd1 Nc3 Rf3 Rg2 Bh2 Rg3 Qe8 Bf8 Na2 Nd7 Qd8 Rg1 Bc7 Rg3 Nc1 N7e5 Bb8 Bd6 Qde7
3q1bNb/1b2b2r/b2N3R/p1bn2n1/K4B2/P1N2rp1/2RRQqP1/k4qQ1 b - - 1 2 legal: proof: f4 d5 c4 b5 e4 bxc4 f5 dxe4 f6 h5 Bd3 gxf6 Be2 f5 Bf3 f4 Bg4 hxg4 h4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 f5 Kb4 e5+ Ka5 c5+ Kb5 a5 b4 c3 a3 g3 h5 e3 h6 e4 h7 c2 Qe1 e2 Qf2 e1B Nd2 c4 Bb2 c1B Ndf3 e3 Rh6 e2 Bc3 Na6 Ra2 Nc7+ Ka4 Bb7 b5 Ne6 b6 Nf6 Rd2 Bb2 Rd3 Ng5 Qe3 Bf2 Kb5 e1Q Nh4 f3 Rd2 f4 Bb4 c3 Ne2 c2 Ka4 Kc4 d5 c1B d6 Nd5 d7 Bbg7 Qe7 Bc5 Ng6 f2 Nc3 f1Q Rc2 f3 Qe2+ Kd4 Ne7 f2 Ng8 Bf6 Nd1 Bb2 Bd2 B6e7 Nc3 Rc8 Bc1 Rc6 Bf4 Rf6 Bd6 Rf3 Bf4 Bc8 b7 Qd2 b8Q Bb7 Qe1 Ba1 Qbe5+ Kd3 Ra2 Bb2 Q5e3+ Kc2 Q1e2 Kc1 Ne4 Bbf6 Rc2+ Kb1 Nc3+ Ka1 Qd4 Qb1 Qde3 f1B Qg1 Qe3 Rc1 Qf2 Rc2 Qb8 d8R Qbe1 Qe4 Bfa6 Qe2 Qef1 Rd7 Nc7 Rdd2 Qd8 Nd1 Bb2 Nc3 Nd5 Nf6 Rg8 h8N Rg7 Nf7 Rh7 Ng8 Ne4 Nb1 Bh8 Nd6 Ng5 Nc3
3N1r2/N3rnbp/R5P1/1k4n1/2n1npKb/qr1b3P/1NBQ4/Q1b2nBB b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 f4 g5 f5 a5 Ra3 axb4 Rf3 Qb6 Rf2 Qd8 Rf4 gxf4 Kf2 b5 g4 d5 c4 Kd7 h3 Kc6 a5 e5 f6 e3+ Kf3 d3 c5 d4 g5 b3 a6 b2 f7 d2 a7 e4+ Ke2 b4 g6 b3 Qe1 d1N Qf2 d3+ Ke1 e2 Nd2 b1R Nc4 b2 Qe3 Ba6 Qd4 Qa5+ Nd2 Nd7 Qf6+ Kb5 c6 Nc5 c7 Qa3 c8B Bg7 f8N Nh6 Qe7 Nf2 Qd6 Nf7 Qd8 Ne6 Bb7 Neg5 Ne6 Re8 Ngf3 Re7 Nc4 Rc8 Qd4 Rf8 a8Q Qa2 Kd2 e3+ Kc3 d2 Nd8 e1B Bd3 e2 Bc2 Nfe4+ Kd3 d1N Be3 Bd2 Nfe5 e1B Ke2 Qa4 Bg1 Ne3 Nec6 Bc1 Qd2 Nf1 Rh2 Bh4 Rg2 Ne6 Kf3 Qa3+ Kg4 N6g5 Rg3 Ra1 Rd3 b1N Rd6 Ra2 Qa7 Rb2 Qad4 Rb3 Qa1 Be1 Nb2 Bh4 Qg2 Nbd2 Na7+ Kb4 Qf2 Bd3 Ra6 Nc4 Qh2 Nc5 Bh1 Nce4 Nc8 Kb5 Qg2 Ncd6 Qd2 Nc4 Na7+
R2rq1N1/4k1bK/B2pn3/1Q1Q1PbR/nNb5/Q1b4p/1bbP2r1/1R4qn b - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 e5 gxh4 b5 f6 Bb2 fxe5 Bc3 e4 Bb4 cxb4 Ke2 h5 Ke3 e5 c4 a5 f4 d6 g4 h3 g5 h4 g6 h2 c5 b3 f5 h3 g7 a3 b6 a2 c6 a4 c7 a3 b7 b2 Nf3 Nc6 b8Q Ba6 c8R Nge7 g8Q Nd4 Qg3 Bc4 Qdb3 Nd5+ Kf2 e3+ Ke1 e2 Kf2 e4 Qf4 e3+ Kg3 e1B+ Kg4 e2 Qe4+ Ne6 Q3b5+ Ke7 Qc2 Qe8 Nd4 Bh4 Qca4 e1Q Nc3 b1B Ne4 Nb6 Nf6 Bc2 Qd5 Bg5 Rb1 a1B Rg1 a2 Qa3 Na4 Qbb5 Ra7 Ra8 h1N Rg2 Bg7 Ng8+ Kf8 Bd3 Bc3 Nc6 a1B Nb4 Qg1 Rg3 Kf7 Bf1 Bab2 Rg2 B5h6 Kh5 Rd7 Rg6 Bg5+ Rh6 Rd8 Be2 Qc6 Bf1 Kf8 Kg6 Rh7 Nf6 Ke7 Rh5 Rhh8 Be2 Rhf8 Kh7 Qe8 Ng4 Rf6 Nh6 Rg6 Qa5 Ba2 Ba6 Bc4 Qac5 B5f6 Qb6 Rg2 Qbb5 Bg5 Ng8+
2QQnb2/1qn1rpn1/B3N1nr/6PB/bq2N2n/n5R1/p1k1rP2/2BQ2K1 b - - 0 1 legal: proof: h4 e5 b4 g5 a4 gxh4 d4 b5 d5 bxa4 d6 e4 Ra2 cxd6 Ra1 d5 Ra3 d4 Rd3 exd3 e4 Ke7 c4 Ke6 g4 Ke5 g5 d5 c5 h5 b5 a5 b6 d2+ Ke2 a3 c6 d3+ Kf3 Kd4 Kg2 a4 c7 a2 b7 a1N e5 a3 e6 h3+ Kh2 a2 e7 h4 e8Q Rh6 Qde2 d1N Qc2 d2 Qg6 Nb2 Qc2 d1R Bb5 Nd3 Ba4 Rd2 Qd1 Nf4 Na3 Kc3 Nc2 d4 Ne1 d3 Bd7 Re2 Qe6 d2 Qg4 Nf6 Ng2 Ra7 Ba3 Nc2 Be6 Ng6 Nf3 Ne8 Bc5 Bd7 c8B Na3 Bf5 Na6 b8Q Ba4 Be7 Qd4 Qgf4 Nac7 Bd6 Qb4 Kg1 h2+ Kf1 h3 Bg4 Rb7 Rg1 h1N Qf5 h2 Nf4 Ng3+ Kg2 h1N Ne6 Nh5 Bf4 Nhg7 Bh5 Ng3 Qd5 Kb2 Qd8 N3f5 Be3 Ra7 Ba6 Nfh4+ Kf1 Kc3 Rg3 Rb7 Qbc8 Kb2 Qa1+ Kc2 Kg1 Ra7 Qf1 d1Q Nd2 Qdb1 Ne4 Qb7 Bc1 Q1b4 Bc4 Ra5 Ba6 Re5 Nf4 Re7 Ne6 Rh8 Qe1 Rh6 Qed1+
nr1BQQ2/b1p1n1n1/2b2P2/R1N1N3/1qB1Bp2/N1b1brq1/KbP5/b1k5 b - - 0 1 illegal: No proof kernel
1R2KB2/n2n2Q1/1R2bQ1n/2kP1qqQ/1Np2B2/5rqp/q1r1Bn1P/2b3q1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Nc3 d5 Nce2 dxc4 Nf4 gxf4 Kf2 Kd7 d4 Kc6 g4 b5 a4 e5 a5 h5 g5 b3 g6 c3 g7 b2 f6 b1Q f7 e3+ Kf3 e2 d5+ Kc5 a6 e1N+ Kf2 f3 Ke3 h4 a7 b4 Qc2 h3 Ke4 b3 Ra6 b2 Qd3 f2 Rf6 c2 Bg2 f1Q Re6 Qa2 Qa6 b1N Rf6 Nd7 Rd6 Qf5+ Ke3 e4 Nf3 Nc3 Rf6 Nh6 g8Q Nb5 Ne5 Nd3 Rb6 Nf2 Qg7 c6 Bd2 c1Q Bf3 Qg1 Be2 Be7 Rb8 Rf8 Rb6 Rb8 a8Q Na7 Bc1 Rb7 Qb8 Rc7 Nd3+ Kd6 Kd4 e3 Qbb7 Bg5 Nb4 Bf4 Qg4 Qdg5 Bd2 Qg3 Rb1 Qg1 Qh5 Q1g3 Bf1 e2 Rb2 e1Q Be2 Qeg1 Rb3 Re8 Kc4 Re3 f8B+ Ke5 Bc1 c5 Bd2 Rf3 Bc1 Nc6 Kb5 Kd4 Bd2 Nf6 Qba7 Be6 Rb8 Rc8 Qg7 Na7+ Kb6 c4 Kb7 Re8 Qd6 Be3 Kc7 Re7+ Kd8 Bf4 Qe5+ Kc5 Bc1 Nd7 Qef6 Bd2 Bb2 Be3 Be5 Bc1 Rb6 Bg8 Bf4 Be6 Rd6 Rf7 Ke8 Rc3 Rb1 Rc2 Rb6+ Re7+ Kd8 Nc8 Rb7 Bf7 Nc6 Na7 R1b6 Bg8 Nb4 Bf7 Rd6 Re3 Rb8 Be6 Ke8 Rf3 Rdb6+
2nN2K1/4b2R/1Qr1np2/r1nqnP2/3rrpP1/2BBNk1b/1QQ5/q1B3n1 b - - 0 1 legal: proof: b4 d5 h4 a5 c4 axb4 f4 dxc4 a4 g5 f5 gxh4 Ra3 e6 Rf3 e5 Rf4 exf4 Kf2 Kd7 Kf3 Kd6 Kg4 Kd5 Kh5 Ke4 g4 c5 d4 b5 a5 h3 d5 c3 e3 b3 d6 f6 a6 c4 a7 h2 d7 c2 Bh3 c3 Bb2 c1R Na3 b4 Nb1 c2 Be5 b2 Bd4 b3 Nf3 Ba6 Bb6 Ne7 Na3 b1Q Nh4 b2 Rg1 h1N Qf1 Qa1 Nc4 b1R Ne5 Nf2 Nf7 Nbc6 Qd1 Ne5 Bc5 Nc8 Ba3 Nfd3 Ng2 Rb4 Rh1 Be7 Kh6 Nc5 Kg7 h5 Qd6 h4 Qb6 Re1 Bc1 Kf3 e4 Bf1 Ne3 Rd4 Qb2 Qda5 d8B Rh7+ Kg8 Ne6 Rh2 Qd5 Ba5 Re2 Nd8 Bg2 Bcd2 c1N Bac3 Nb3 Bc1 Nbc5 Rh1 Bd6 Qb6 Rc7 Qb2 Be7 Qb6 Rb8 a8Q Rc6 Qa2 Ra8 Qab2 Ra5 Rh2 Bh1 Bf1 h3 Qc2 Bg2 Rh1 Re1 Bd3 h2 Qbb2 Bh3 Qb6 Ned7 e5 Re2 Nf1 Ree4 Ne3 Ng7+ e6 Ne5 Rd1 h1N Rd2 Ra6 Rh2 Ng3 Qcb2 Ne2 Rh1 Bg2 Rh7 Bh3 Qc2 Ra5 Qbb2 Qd6 Qb6 Ng1 Qcb2 Bf8 e7 Nge6 e8Q Qd5 Qf7 Be7 Qh5 Bf1 Qhh2 Bh3 Qhc2
1knn2N1/B1bp1P1K/1bpr1RR1/4b1qQ/QnQ1b1b1/2P1rN2/5q2/1n1N4 b - - 0 1 illegal: No possible last move
b2RR2r/n5kb/4nB2/p3bQq1/3p1P2/rbnK3B/P3QRq1/2b2nQN b - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 c4 bxc4 e5 f5 Nd2 g5 Ne4 gxh4 Bf4 fxe4 Bg5 Ne7 Bc1 Ng8 Ke2 Kf7 f4 d5 g4 h5 b4 c5 b5 h3 g5 c3 g6+ Kg7 b6 c2 e6 h4 e7 c4 e8Q d3+ Kd2 h2 b7 c3+ Ke3 d2 Bh3 d4+ Ke2 e3 Bd7 h3 Qe1 d1B+ Kd3 e2 Bc6 Nf6 Qg3 e1Q Qe2 Nd5 Qe8 Nc7 Qg2 Qf2 Bd7 Nc6 b8R Qg5 Qge4 Qfg2 Be3 c1B Rbb1 c2 Bf2 Ne6 Bh4 Bd6 Rb8 Be5 Qf5 a6 Rab1 Na7 Ne2 Bb7 Rf1 h1B Bc8 h2 Rf2 Bd5 Ng3 Bb3 Bd7 Bf3 Rd8 Be4+ Ke2 a5 Rb2 Rc8 Rb1 Ba8 Kd3 Rc4 Rb2 Ra4 Bc8 Ra3 Qb5 Qh6 Be7 Qg5 Rb1 Bb2 Re1 c1N+ Kd2 Ne2 Kd3 Bc1 Qc4 Kh6 g7 Nc3 g8Q Nab5 Qe8 Na7 Qh5+ Kg7 Qhg4 Qg1 Bd7 Bhg2 Qe2 h1N Qd5 Bh3 Qg2 Qf1 Qg1 Qg2 Nf1 Ng3 Bc8 Nge4 Ng3 Nd2 Nh1 Nf1 Bb7 Qh2 Bg2 Bg4 Bh3 Qg2 Bd6 Bh5 Be7 Bg6 Qd1 Bf6 Bb4 Nf8 Ree8 Be5 Qe2 Bh7 Be7 Ne6 Bf6+
4R1N1/7r/Kb4pR/1r1n1rQ1/1pBPr1NQ/b2R2nq/3k2PQ/1br3qb b - - 0 1 illegal: No proof kernel
Kn4r1/PR6/n1p4R/bn1Q2Rr/1N3qB1/bb1Bn3/2PbQ1pn/1q1k2B1 b - - 0 1 illegal: No possible last move
5Qq1/2qp3P/r1N1BqpR/k3b3/1r1qn1K1/N2b2Bn/QNQP3q/6bb b - - 0 1 legal: proof: f4 a5 g4 h5 a4 hxg4 b4 axb4 f5 c5 f6 c4 Ra2 exf6 Rb2 f5 Rb3 cxb3 Bg2 f4 Bh3 Qa5 Bf1 Qd8 Kf2 b5 e4 f5 c4 g3+ Kf3 g6 h4 b2 c5 g2 h5 b3 c6 b4 c7 Bg7 a5 Nh6 a6 Ng4 a7 Be5 h6 Bb7 c8N Nf2 h7 Na6 Rh6 Qc7 Rh4 Kd8 Bd3 Nh3 Rh5 Nc5 Ne2 g1B Nbc3 b1Q Bb5 b2 Nd4 b3 Bf1 Qd3+ Kg2 b1B Ba3 b2 Nde2 Qd4 Kf3 Bd3 Nb6 b1Q Bg2 Qa2 Nb1 Qg8 Rh6 Rb8 a8Q Bc6 Nc8 Rb4 Qa5 Bb7 Nb6 Ba8 Na4 Kc8 Bf1 Kb7 Bg2 Kc6 Qa7 Kb5 Qc2 Bd5 Nb2 Ba8 Qb7+ Ka5 Qd5 Bc6 Nec3 Ba8 Nb5 Bc6 Bf1 Bb7 Na7 Ba8 Qa2 Bb7 Kg2 f3+ Kh1 f2 Kg2 f4 Kf3 Ba8 Kg4 f3 Be2 f1Q Nc6+ Kb6 Bd1 Qff2 Be2 Qh2 Bd1 Bf4 e5 f2 e6 f1Q e7 Ne4 e8Q Be5 Qf8 Qf6 Bf3 Rb3 Bd6 Rb4 Na3 Bb7 Nb8 Ka5 Nc6+ Ka6 Bd1 Qgc4 Qcb1 Bf4 Qf7 Nc5 Ne5 Ka5 Bb3 Bh1 Qg7 Ra8 Qf8 Ne4 Qc2 Qg8 Be6 Ra6 Nc6+ Kb6 Nd8 Ka5 Be5 Bfe3 Bg3 Bf4 Na4 Bd6 Nb2 Be5 Nc6+
N1kR4/2n1n3/q3p1NP/4PQ1q/1R1qb2q/1Q2nr1n/1b2pB1K/1r1Rb2N b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 Bg2 cxd4 Bf3 f5 Be4 fxe4 Kf1 b5 Kg2 d5 h4 Kd7 a4 g5 f4 e6 c4 b3 h5 d3 c5 g3 h6 d4 a5 b2 f5 b4 f6 d2 a6 d3 a7 b3 f7 e3 Rh2 g4 Ra6 e2 Nf3 Qh4 Qc2 d1N Ra1 d2 Rh3 Ne7 Rh2 Bb7 c6+ Kc8 c7 Na6 Qf5 Be4 Qf4 Rb8 a8N Ne3+ Kh1 g2+ Kg1 d1Q+ Ne1 Qd4 Nd2 b1Q Bb2 Qa2 Ba3 b2 Nef3 b1Q+ Nf1 Qbd1 Rh3 Rb1 Kh2 g1N Bc5 Qac4 Qf5 g3+ Kh1 g2+ Kh2 Qda4 Ng3 Qh5 Rh4 Nh3 Nh1 Rg8 Rf4 Rg3 Nh4 Rf3 Ng6 Qab4 Rg4 Qe1 Ba7 Qeh4 Bb6 Nc6 Rf4 Ba3 Bc5 Bb2 f8Q+ Qdd8 Qe8 Ne7 Qb5 Qdd4 Qb3 Qa4 Bb4 Qc6 Be1 Qca4 Bf2 Qa3 Ng3 g1B+ Kh1 Bd3 Qg4 Rd1 Rf7 Qc4 Rf4 Kd7 c8R Nc7 Be1 Qaa6 Qf5 Bf2 Kh2 Qc3 Rfa4 Qcd4 Rb4 Be4 Nh1 Rc1 Rcb8 Rd1 R8b5 Rc1 Rd5+ Kc8 Rb1 Rc5 Rd1 Rc1 Bd2 Rb1 Bc1 Ng2 Be3 Be1 Bf2 Ne3 Rd8+
2Q2K1N/1NnQ1br1/1npp2q1/1N1P2b1/3kr1bP/Qr3q2/1b1n4/1BB1n2R b - - 0 1 legal: proof: b4 b5 c4 bxc4 f4 h5 g4 hxg4 a4 a5 b5 e5 Ra3 exf4 Rb3 Rh6 Rb2 Rh8 Rb4 axb4 Kf2 Ke7 e4 Kd6 h4 Ke5 d3 f5 b6 g5 a5 d6 b7 c3 a6 c6 a7 f3 Ke3 b3 Qe2 b2 Qg2 f4+ Kf2 c2 Qh3 g3+ Ke1 g2 Kd2 f2 Kc3 g4 Kb4 g3 Qe6+ Kd4 e5 f3 Qf6 Bg4 Bg5 c1B Qg7 Ne7 Nc3 b1N Nh3 g1N Nf4 g2 Ng6 Qe8 Ka5 Nd5 Qd7 Be7 e6 Na6 b8N Nac7 Na6 Nd2 Nc5 Rb8 a8Q Nb6 Nb7 Bb2 Qc8 Rg8 Nh8 Rg7 Bf4 Bf6 e7 Qg6 e8Q Bg5 Qed7 Re7 Be2 f1B Qa7 f2 Nb5+ Kd5 d4 Re4 Be3 Ngf3 Bd3 g1R Bb1 Ne1 Qa8 Kc4 d5 Bfh3 Qa7 f1Q Qa6 Qf3 Qa7 Nf1 Bc1 Nd2 Qa6 Be6 Qa7 Na4 Qe3 Bf7 Qa3 Bg4 Qf5 Nc5 Kb6 Rg3 Qcd7 Rg8 Qc8 Rg7 Qfd7 Na4+ Ka7 Qd1 Kb8 Be7 Qg8 Bg5 Kc8 Rb3 Qd8 Qf3 Qe8 Bh6 Kd8 Nb6 Qc8 Be3 Qee6 Bh6 Ke7 Be3 Kf8 Bg5 Na7 Kc3 Qed7 Kd4 Nb5+
1q2n1r1/1pR3n1/NP2QR2/KbnN1q2/2q1Pbkr/4bR2/2p3BQ/Qn5q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 f5 dxc4 b5 e6 Bb2 exf5 Bc3 f4 Bb4 axb4 a4 Kd7 g4 Ke6 d4 h5 Kd2 c5 g5 Kf5 d5 b3 Kc3 f3 e4+ Kg4 g6 f5 d6 h3 b6 f4 a5 h4 g7 b2 d7 h2 a6 h3 a7 Nf6 Qd6 f2 Ra3 f3 Rb3 Na6 Qd3 Bd6 Qd5 Bf4 Bd3 f1Q Rb4 f2 Qe5 Rh4 Rb3 Ne8 Na3 b1N+ Kb2 Rb8 a8Q c3+ Kc2 c4 Nb5 Qc7 d8R Nc5 Qa1 Bd7 Rc8 Ra8 Ra3 Qb8 Nc7 Bb5 Na6 Be3 Ne2 Bf4 Ng3 Be3 Rg1 h1N Nf5+ Ng3 Ne7 h2 Rc7 h1Q Nd5 Qfh3 Rc1 Nf5 g8Q+ Nfg7 Qh2 f1Q Qe6+ Qf5 Bf1 Qg3 Rd7 Qgc7 Bg2 Qc6 Rf1 Qcc7 Kd1 c2+ Ke2 Bf4 Raf3 c1B Ke1 Qcc8 Rc7 c3 Kd1 Bce3 Kc2 Nd7 Kb3 c2 Kb4 Nc5 Re7 Qcc7 Ka5 Qcc8 Nc3 Qc6 Rc7 Qd5 R1f2 Qc4 Nd5 Bg5 Rh3 Nd6 Nc3 Qg8 Qee5 Qg6 Rff7 Qf5 Rf6 Bgf4 Rf3 Qe8 Qd5 Qee5 Rd7 Rg8 Qe6 Nde8 Nd5 Qb8 Rc7
1Qkq4/Kpqbbn1Q/QP6/r2b2Pr/RB4r1/1BB3bq/n2p4/1N4Nq b - - 0 1 illegal: No possible last move
2Kb1Q2/1NQ5/1NR1p2k/3q1n2/N1r2P2/p3qn1n/PR4bn/qrQb1qB1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxe4 h5 bxc4 h6 f5 Be2 f4 Qc2 f3 Kd1 gxh6 Qb3 fxe2+ Kc2 h5 Kc3 h4 Qd1 Bb7 Kc2 Bc8 g4 Kf7 Kc3 Kg6 Kb4 e1Q Ka5 h5 b4 c5+ Kb5 a5 d4 c3 f4 e3 d5 a4 d6 c4 g5 e2 d7 c2 Qd4 h3 Nd2 c3 Qc4 h4 Qd5 h2 Qd6+ Nf6 Kc5 a3 b5 h3 b6 Nc6 b7 Nd4 b8Q Ra4 Nc4 Nf5 Kc6 Qf1 Qdc7 e1N Qa8 Ng4 Qab8 Nf3 Bd2 c1Q Qba7 c2 Ba5 Qe3 Ne2 c1Q Rb1 e6 Bc3 Be7 Bd4 Ba6 Rb2 Qa1 Nb6 Rc4+ Bc5 Kh7 g6+ Kh6 g7 Rh7 Rg1 h1N g8Q h2 Nc3 Nhf2 Nca4 h1B Qf8+ Rg7 Qa8 Nh3 Qac8 Ngh2 Rg3 Bb5+ Kb7 Bg2 Bd4 Bh4 Bc5 Qg5 d8N Be8 Kb8 Bh5 Nb7 Qd8 Bd4 Qd5 Bc5 Bd8 Rg5 Qec1 Bg1 Qe3 Rg3 Rc1 Rg5 Rb1 Qc1 Bg4 Q8c7 Bh5 Kc8 Bg4 Qe8 Rd7 Rg7 Rd6 Rd7 Rc6 Rd6 Rc4 Qg8 Nd2 Qf7 Bd1 Rc6 Ndf3 Qf8+
q3N3/b3Rp2/2BKBQr1/1P3PB1/r2p1Rq1/rqn2q1n/3Qn2k/nb1Q4 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 a5 gxh4 a6 d3 Nd2 e5 Ndf3 bxa6 Bg5 a5 Nd4 exd4 Bc1 a4 Kd2 Ke7 g4 Ke6 b4 Ke5 c4 Kf4 e4 a5 b5 h5 c5 d5 c6 h3 c7 a3 e5 a4 f3 Kg3 e6 h4 f4 h2 e7 h3 e8B a2 g5 a3 g6 Bf5 c8Q Ra4 g7 Nc6 Qe6 Nf6 Qc2 Ne4+ Ke1 d2+ Ke2 d3+ Ke3 d1Q g8Q+ Qg4 Qh7 d2 Qhh6 d1Q Bd3 Nc3 Qd7 Rg8 Bd2 Nd4 Qf6 Qa8 Nf3 Nde2 Ne5 Rg6 Rf1 h1Q Nc4 h2 Nd6 Bh6 Qc1 Qb3 Bc4 Bb1 Qd1 Qg2 Qdd8 h1N Bc6 Kh2 Ne8 Nf2 Re1 Bg7 f5 Nh3 Rf1 Bf8 Rf4 Bd6 Qa5 Bb8 Qad8 Neg1 Kd4 Nge2+ Kc5 d4 Qa5 Q2f3 Be6 Ba7+ Kd6 Bc2 Rb1 a1N Rc1 a2 Be3 Bb1 Qb4 Nd5 Qbd2 Ra3 Rc5 Nc3 Rc4 Nc2 Rc5 a1R Re5 R1a2 Bed5 Ra4 Re7 Na1 Be6 R4a3 Bf2 Ra4 Bh4 R2a3 Bg5
nr1n1N1k/1Q4pr/3q2q1/2P1q2n/2bRrbBn/2qN2Pp/R3QK1Q/1R6 b - - 0 1 illegal: No proof kernel
2Rnr1B1/qp1n4/p1QqQ1K1/3b2R1/4N1P1/Q1q2n1N/PkbN4/r1b1n1q1 b - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 e4 d5 f5 dxe4 f6 h4 Bb2 gxf6 Be5 f5 Bg3 hxg3 Qf3 f4 Qe2 Rh3 Qd1 Rh8 Ke2 Kd7 d4 Kc6 h4 Kd5 h5 Kc4 h6 f5 d5 e5 h7 e3 Kf3+ e2 d6 b3 c3 b2 d7 a6 Bg2 e1N+ Ke2 f3+ Ke3 f2 Qc1 f1N+ Ke2 e4 Rh2 f4 Qd1 e3 Rh4 Nh2 Qc2 Nf6 Rh6 Nc6 Rh5 Bh6 Rg5 Nhf3 Nh3 Re8 Bh1 g2 h8Q g1Q Qf8 Qe7 d8N Nd7 Nf7 Qd6 Bg2 Nd8 Qf5 Re4 Qe7 Rd4 Qa5 Rd1 Qa3 Nb6 Bf1 Be6 Qe8 Bd5 Qe6 Nd7 Nd2+ Kb5 Rc1 b1B Bg2 Be4 Rc2 Ra1 Rc1 Bc2 c4+ Kc6 c5 Kb5 c6 Rb8 Qc3 Ka4 c7 Rc8 Qc6+ Ka3 Qe7 Ra8 c8Q Kb2 Qe6 Qb8 Nd6 Qa7 N6e4 Qh2 Qc5 Rb8 Kf1 e2+ Kf2 Nfe5 Rh5 f3 Nc3 Bdb3 Nf1 Qg1+ Kg3 f2 Kh4 Bg6 Q8c7 Ndc6 Q7d6 Nc2 Qc7 e1Q Qg8 Re8 Bd5 Nd8 Q7a5 Bd3 Ne4 Qd2 Qcb5 Ne1 Rc8 Qc3 Qc6 Bc1 Nfd2 Bdc2 Kg5 N5f3+ Kg6 Qh2 Rg5 f1Q Qf7 Qfg1 Qff6 Qf4 Bg8 Bd5 Qfe6 Qd6 Qa3+
R7/K2nP1Rp/6NQ/1rn1r1pq/4qQQr/b2n3b/q1r1B1kP/2BBn3 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Na3 e4 Nc4 fxg6 Nb2 g5 Nd3 exd3 Bd2 g4 Bh6 Ke7 Bc1 Ke8 Kd2 Kf7 e4 Kg6 f4 Kh5 c4 Kh4 a4 g5 a5 d5 c5 b5 e5 b3 a6 b2 c6 b1Q e6 b4 c7 b3 a7 b2 f5 g3 f6 g2 f7 Na6 Ra5 Ba3 f8Q Qa2 e7 b1R+ Qc2 Nc5 Ra6 Bh3 c8Q Nf6 Qc6 Rb5 Qb7 Nfd7 Ne2 g1N Qc8 Nf3+ Kd1 d2 Qff5 Ne1 Qf7 Qc7 Qf3 Qf4 Rd6 Qe4 Nf4 Rab8 Qc6 Rhc8 a8B Rb4 Qe3 R8b5 Ke2 d1R Rg6 d3+ Kf2 d4 Qce2 d2 Rg7 d3 Qd4 Bg2 Ng6+ Kh3 Qe5 Rd4 Qf4 Rd5 Qcf6 Re5 Bd5 Rc7 Bb3 Rc8 Bb2 Ra1 Bc1 d1Q Qa6 d2 Qc4 Qg4 Be2 Qh5 Bbd1 Rab1 Rg1 R1b4 Qaf6 Qeb1 Qce4 Rc4 Ke3 Rc2 Kd4 Ra8 Qd5 Ra4+ Qc4 Bf1 Rh1 Kg2 Qb6 Re6 Kd5 Re5+ Kc6 Qb4 Qe6 Qe4+ Kc7 Nf6 Kb8 Rac4 Qc8 Nfd7+ Ka7 Rcb4 Bg4 Rd4 Bde2 d1N Qbc6 Nf2 Bd1 Bc4 Bge2 Nfd3 Qcf6 Be6 Rf1 Nb6 Rf3 Bh3 Qcg4+ Kh1 Qfe6 Nbd7 Rg3 Nb4 Rb3 Nbd3 Rb4 Rdc4 Ra4 Qc6 Qff6 Rcb4 Qg3 Ng2 Nf4 Qcf3 Qh6 Qfg4 Ng6 Rbe4 Ka8 Nge1 Qh4 Qf5 Qf2 Rh4 Qf4 Kg2 Ra5 Nb6+ Kb8 Qe4 Ra8 Nbd7+ Ka7 Rcb2 Qef5 Rc2 Q5g4+
bK5b/B2b4/1pbR1p1p/1qBBn3/1b3k2/5QnP/r1r2QPn/r2QN2R b - - 0 1 illegal: No possible last move
b1N2b1b/p1rrbBR1/Kb1Q1QNq/Qp1P2N1/P7/1Rr2p2/4nnn1/3k4 b - - 0 1 legal: proof: f4 c5 g4 g5 b4 cxb4 e4 d5 Bb2 dxe4 Bf6 gxf4 g5 h6 g6 Bg4 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 d4 Ke6 h4 Kd5 a4 Kc4 d5 f5 h5 b5 c3 e5 h6 b3 g7 b2 h7 g4 Qd3+ Kb3 Rh5 e3 Qd2 g3 Kd3 e4+ Kd4 f3 c4 f2 c5 e2 c6 e1B c7 f4 Nh3 g2 Ra2 g1B Bd3 f1N+ Qe3 f3 Re5 Bb7 c8N Qd6 Ne7 Bb4 Re6 Nf6 g8Q Ng4 Ng5 Nf2 Be2+ Kc2 Bd3+ Kd1 Qf4 e3 Rg6 e2 Bf5 e1B Nc8 Ne3 Ra3 Ng2 Nd2 b1R Nc4 Rb3 Be6 Rc3 Bf7 Bd2 Rg7 Qh6 Qg3 Bbe7 Qd6 Nc6+ Kc5 Nd4 Rb3 Ne2 Kb4 Rb8 Ka5 Ba8 Ka6 Rb7 Ne5 Rd7 Ng6 Rcc7 Be6 Bc3 Qf7 Rg8 h8Q Be5 Qf6 Rc3 Rh7 Rg7 Bf7 Bd4 Qb4 Bb6 Qa5 Bh2 Qd6 Be5 Be8 Rf7 Qhf6 Rdc7 Qfe6 Bh8 Qf6 Bd8 Rg7 Rfd7 Bf7 Bde7 Bg8 Kc1 Be6 Kd1 Bf7
1rN3r1/1Nk4p/2B1bn1K/3RRrpQ/n2n1N1n/1Pp2n1P/1bb1R1Q1/5q2 b - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 dxc4 g5 e5 d5 f6 Be3 fxg5 Bc5 g4 Bd4 exd4 Kd2 Kd7 f4 g5 e4 c5 h3 a5 f5 a3 e5 d3 Ke3 d2 e6+ Kc7 f6 a4 e7 c3 e8R a2 b3 c4 f7 g3 Be2 g2 Qe1 d1B Qd2 c2 Kf3 c1R Re6 c3 Kg4 a3 Kh5 Qf6 Rb6 Nd7 Qc2 Rb8 Nd2 Nc5 Rd6 Be6 Ne4 Qf1 Rh2 Na4 Bf3 Be7 f8Q Nf6+ Kh6 Rg8 Qe2 Bc2 Qf7 Rd1 Rb1 a1N Qh5 a2 Rc1 Rd4 Re1 Rd2 Rd8 Ba3 Nd6 Bb2 Nc8 Rd4 Qd2 Rf4 Ne2 Rf5 Nf4 g1N Be4 Nf3 Qg2 Nh4 Bf3 Bd3 Re5 Nc2 Rd6 a1N Rd8 Be4 d6+ Kc6 d7 Kc7 Qg3 Nd4 Re2 Bb1 Bc6 Nac2 Qg2 Ne1 Rf8 Nb5 d8N Nef3 Nb7 Nbd4 Rd8 Bc2 Rdd5
6Q1/4Bn2/r1b1K2p/q1QP1p2/1qb2R1p/1b3rRP/2QnR1B1/2Nkb1qb b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 c5 exf4 Nc3 g5 Ne4 d6 Ng3 dxc5 Nf5 c4 Nh4 gxh4 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5+ Kh5 Kd4 a4 b5 e4 c5 g4 c3 a5 c2 a6 c4 g5 c3 d3 b3 g6 b2 e5 b1B h3 h6 e6 b4 Kg4 f3 Kf5 b3 g7 f2 a7 b2 Ra5 Bd7 Re5 Bb4 Bd2 c1Q Qc2 Qa5 Be1 Qd2 Qd1 c2 Qf3 Kc3 Qb7 c1Q Qc7+ Bc6 e7 Kc2 e8Q Ba2 d4 b1B d5 Bb3 Bc4 f1B Re2 Nf6 g8Q Kd1+ Ke5 Ne4 Qec8 Nd7+ Kf5 f6 Ke6 Ne5 Qb6 f5 Qc5 Nf7 Bg3 Bg2 Bd6 Bd3 Be7 Qf4 Rh2 Bh1 Rhg2 Be1 Rg3 Nd2 Qc7 Rb8 a8R Re8 Ba6 Bdc4 Rb8 Rh7 Rb4 Rg7 Bb5 Ra8 Qcc8 Ra6 Ra4 Qg4 Rb4 Bd3 Rf4 Bdc4 Qc7 Qca3 Qcc8 Q3b4 Qc7 Ba2 Qcc8 Bcb3 Bd3 Bc4 Be4 Bab3 Bg2 Rg5 Re5 Rg7 Ne2 Rg5 Nc1 Rg7 Rff3 Qd4 Re2 Qg1 Rf4 Rg4 Rd4 Rf4 Qc7 Rf3 Rf4 Qb8 Qe5 Qbb5 Qe4 Qbb4 Qc2+
Q1R3b1/nq1B1PQ1/7R/Kb1Q1pp1/2k1rP2/p2N2B1/1bb1rqRn/3r1b2 b - - 0 1 illegal: Other
k1q5/1RB1N2Q/2B2n1n/5r1b/2pqrb1K/1BPb1Q1p/1p1Q1P1n/nN4n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 a4 gxh4 e5 d5 e6 d4 Ra3 fxe6 Ne2 e5 Ng1 e4 Re3 dxe3 d4 Kd7 g4 Kc6 c3 b5 d5+ Kb7 d6 c5 a5 e5 g5 h5 g6 c4 g7 b3 d7 b2 Qc2 h3 Nd2 b1B Qd3 h2 Nb3 h4 Na1 b4 Nf3 h3 Qc2 b3 Qd3 b2 Nd4 e2 Ndc2 Rh5 Nb4 Bd6 Rg1 h1Q Qd2 Rf5 Na6 Bd3 Qf4 Nh6 g8Q Qe8 d8Q Nd7 Nb3 Nf6 Kd2 e1N Ke3 Nf3 Nd2 Nh2 Nb1 Rb8 Qg7+ Ka8 Qf3 Be6 Qge7 Bf7 Nb4 Bh5 a6 Qg8 Qdd7 Re8 a7 Qd5 Rg7 Qd4+ Kd2 Qg2 Nd5 Qg4 Be2 e3+ Ke1 e4 Bd1 e2 Bf4 Be5 Bb3 Bd6 Kd2 e1N Qed8+ Bb8 Bc7 Nc2 Ne7 Na1 Ke1 Qd5 Rh7 e3 Rg7 e2 Rh7 Kb7 a8B+ Ka7 Kd2 e1N Ke3 Qb7 Rg7 Qc8 Bc6 Qh4 Qdd5 Qg4 Qg8 Qh4 Qh7 Qg4 Qe2 Nef3 Qd7 Ng1 Qf3 Rc5 Qd8 Qgd7 Kf4 Qd4+ Kg3 Rf5 Ng6 Re4 Qd6 Bg4 Kh4 Bh5+ Qdf4 Nfg4 Qd2 Nf6+ Bf4+ Bc7 Rd7 Kb8 Ne7 Bd6 Rb7+ Ka8 Kg3 Bb4 Bc7 Bd6+ Qff4 Be5 Kh4 Bd6 Qg4 Bf4 Qf3
1br3nk/R4BQp/2b2P2/Q1b1p3/b2q1N1p/2qRPr2/n2N2R1/2b1n1NK b - - 0 1 legal: proof: g4 a5 h4 g5 b4 axb4 c4 d5 Bb2 dxc4 Bg7 f6 Bh6 gxh4 g5 Bf5 g6 Bc8 Bg5 fxg5 f4 c5 Kf2 b5 Kg2 e5 d4 c3 a4 c4 d5 g4 g7 Kf7 f5 c2 a5 c1N d6 b3 d7 b2 f6 c3 a6 c2 a7 b4 Na3 b1Q Qe1 b3 Kh2 g3+ Kg2 b2 Qd2 Bc5 Qe3 Na2 Qd4 c1B Qe3 Nc6 Qf2 Bb7 Qf4 Nd4+ Qe4 Bc6 Rh3 Nc2 Nc4 Ne1+ Kh1 Qc2 Qg2 b1B Nd2 Rb8 a8Q Qc3 Qa4 Rb3 Qa5 Ba4 Qb7 Be4+ Bg2 Bec6 Bd5+ Kg6 Qba7 Bd6 Qb7 Bb8 Qba7 Qb6 d8N Qbd4 Ne6 g2+ Kh2 Nh6 Rd3 Rc8 Qd7 Ng8 Bc4 Ne7 g8R+ Kf7 Rg4 Ra3 Nf4+ Kf8 Bf7 Ng8 Ngf3 g1B+ Kh1 Qdc4 Rg3 Bc5 Rg2 Q3d4 Ng1 Rc3 Rh3 Rf3 Qb7 Qcc3 Qd7 Rf1 Rd3 Rf3 e3 Nh6 Bg6 Kg8 Bf7+ Kh8 Bc4 Bd1 Qac7 Nb4 Ra7 Bda4 Qa5 Na2 Qg4 Ng8 Bf7 Bcd6 Qg6 Bc5 Qg7#
1K2Qrbr/5N1p/1Rb2r2/3q1k1R/Rn1r1B2/1p1p4/BbQP1Q1P/nr3q2 b - - 0 2 legal: proof: f4 g5 c4 e5 b4 e4 b5 gxf4 Na3 a6 Nc2 axb5 Nd4 bxc4 Ndf3 exf3 Ba3 c3 Bb2 Qg5 Bc1 Qd8 Kf2 Ke7 g4 Kf6 a4 b5 e4 d5 a5 c5 a6 d4 a7 d3 Ra3 c4 Qb3 c2 Ra4 c3 Rb4 Nd7 Ra4 b4 Bb2 c1R Ne2 Ne7 Ng3 Nc5 Bg2 Qd5 Rg1 Rb1 Nf5 Nc6 Qc2 Be6 Nh6 Bg7 e5+ Kg6 g5 f5 Ra6 Nb3 Rb6 Bg8 e6 Rf8 a8R Na1 e7 Be5 Ra4 Bf6 Qd1 c2 Be5 c1R Nf7 Rc4 e8Q Rd4 Bh1 Bg7 Rg4 Bf6 Rh4 Bg7 Rh5 Bf6 Kf1 f2 Be4 Bg7 Kg2 f1R Qc2 f3+ Kg3 f2 Bf3 f4+ Kg4 Qc4 Bd5 f3+ Bf4 Qa2 Kg3 Kf5 Qe3 Qc4 Qe2 Qc5 Ba2 b3 Qe1 Nb4 Qe8 Be5 g6+ Ke4 g7 Qd5 Rhh6 Kf5 Rh4 Rh1 Rh3 f1B Rh5+ Ke4 Kg4 f2 Kg3 Bg2 Kg4 f1Q Kg5 Kf3 Kf5 Bb8+ Kf6 Kg4 Ke7 Bd6+ Kd8 Be5+ Kc8 Bf6 Rh4+ Kf5 Kc7 Rg1 Qe1 Bh1 Qf2 Rg6 Rh6 Re4 Rh4 Bb2 Rh6 Rd4 Rh5+ Ke4 Nd8 Rgf6 Kb8 Bf7 g8Q Bf3 Qg7 Bg8 Qf7 Bg2 Rh4 Kf5 Qe8 Qf7 Rh3 Bc6 Rh4 Qd7 Nf7 Qd5 Rh5+
q2B4/RpnR1PR1/b1nr2N1/5pb1/1r1N4/4r3/pPKN1rkq/4QbrQ b - - 0 1 illegal: No possible last move
RK2bQ2/n1Rp1n2/2B1rp2/1Q2Q3/Bq2n3/1rPnq1Np/1Bk4P/1qb1r3 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nc3 g4 Ne4 exf6 Nd2 f5 Ndf3 gxf3 Qd2 f4 Qd3 Qg5 Qd1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 Kc3 a4 b5 e4 h5 a5 b3 a6 b4 a7 h4 g5 f2 g6 h3 g7 d3 Ra4 f3 Bg5 d2 Qe2 d1N Ra3 f6+ Kd5 Nc6 e5 Nh6 g8B Qb6 e6 Ba6 e7 Rb8 Kd6 Bc4 a8Q Na7+ Qc6 Qe3 Kc7 Nb2 e8Q Nf7 Ra2 Nd3 Qee6 b2 Bf4 b1Q Qee4 b3 Qce6 b2 Bg2 f1N Qe8 Ba3 Qf8 f2 Qc6 Rb4 Qb5 Rb3 Kb8 Nd2 Bc6 f1R Ra1 Rh4 Be5+ Rd4 Qh5 Ne4 Ne2+ Kd2 Rg1 Rd6 Ng3 Re6 Bd4 Qbe1 Qe5 b1Q Bb2 Kd1 Rg2 Qb4 c3 Rg1 Rf2 Bd5 Rf4 Kc2 Bh7 Re1 Bf5 Nec5 Rc4 Be4 Bg4 Bg6 Ra2 Ne4 Bd1+ Kd2 Ba1+ Bb2 Ra6 Bc1 Bb2 Nh8 Ra1 Be8 Ra4 Nf7 Ra5 Ra3 Ba4 Rb3 Ra6 Kc2 Rc5 Nc8 Ra8 Na7 Bb7 Rd6 Rc7 Re6 Bc6
KR1qq3/b1pr4/2r1Nn2/1Q1Qr2p/1R1bbnpB/6Pr/1nPk1NQ1/7N b - - 0 2 legal: proof: e4 a5 b4 axb4 h4 f5 e5 g5 e6 gxh4 Bc4 dxe6 Ba6 e5 Be2 e4 Bg4 fxg4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 Kb5 Kd5 f4 Kd4 a4 e3 g3 h3 f5 e2 f6 e1N a5 h2 d3 e4 a6 b3 a7 e3 f7 b2 Qd2 e2 Nh3 Rh6 Nc3 b1Q+ Ka5 b5 Ng1 b4 Ba3 b3 Qc1 b2 Bd6 Nf6 Nh3 Na6 Qg5 Bg7 f8N Ng2 Be7 e1B Ra4+ Nb4 Nf2 Nf4 Ne6+ Ke3 d4 Bb7 d5 Nd3 d6 Kd2 d7 Be4 Ka6 Rb8 a8Q Rb5 Ka7 Re5 Rf1 h1R Ncd1 Rh3 Nh1 Bf2+ Rd4 Bg1 Ndf2 Qe1 Rb4 b1R Rb8 Rc1 Qc6 Rb1 Ka8 Rd1 Qf5 Nb2 Qb7 Qe8 d8Q+ Qd7 Qe8 Qd8 Qb5 Qe2 Nd3 Ba7 Ndf2 Qe8 Re1 Qd3 Re3 Qdd8 Rb3 Kc1 Q7c6 Rd7 Rb4 Kd2 Qcb7 Ng8 Bh4 Bh8 Nc5 Rc6 Ne6 Nf6 Qg5 Bg7 Qf5 Bf8 Qg5 Bfc5 Qf5 Bd4 Qd5 Bd3 Qg2 Be4 Qb5 Red5 Qe5 Rdc5 Qd6 Re5 Qdd5
b7/4q1b1/pKQB1kBB/r2R2n1/q2p1R2/Qp1Pbb1r/1q2n1P1/4r1QN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 b4 gxh4 b5 c5 Nc3 e5 Nd5 exf4 Nb4 cxb4 Kf2 Ke7 c4 f5 e4 h5 b6 d5 c5 b3 e5 h3 b7 a3 d3 h4 e6 f3 Ke3 a2 Kd4 f4 c6 h2 Kc5 f2 c7 h3 Be2 f1R Qd2 f3 Qf4 f2 Nf3 Nh6 Qb4 Kf6+ e7 Nf7 Bh6 Re1 Bd2 f1B Qa3 Nc6 b8B Ng5 Rd1 a1B Ne5 Bh6 e8Q Qe7+ Kb5 Bb7 c8Q Nd4+ Ka5 Bb2 Rg1 h1Q Be3 h2 Bh5 Be2 Qcc5 Bf3 Rf1 Ne2 Bd6 d4 Qec6 Bg7 Ra1 Bc1 Bg6 Rh3 Qc2 Qg1 Qd1 h1Q Bd2 Qf2 Ng4+ Ke6 B2f4 Be3 Rc1 Qhg1 Rc5 Qh1 Rd5 Qhg1 Nh6 Kf6 Qda1 a6 Q1c1 Rg8 Nf5 Ba8 Ng3 Rb8 Nh1 Rb5+ Ka4 Ra5+ Kb4 Ra4+ Kc5 Ra5+ Kb6 Nc3 Qac5 Qb2 Qa3 Qgf2 Qb1 Qfc2 Qd1 Ne2 Qc1 Qc4 Qd1 Ne6 Bh6 Qa4 Qdc1 Bf4 Qe3 Ng5 Qg1 Be3 Bf5 Bg4 Rf4 Bf3 Bg6+
2k5/K4pn1/1pR2n1r/1P1n1bRp/N4PRB/3Qq1qQ/3b1r1b/rr2Q2B b - - 1 2 legal: proof: e4 b5 a4 bxa4 h4 g5 e5 gxh4 Na3 d6 Nc4 dxe5 Nb6 cxb6 Qg4 e4 Qh5 Qd3 Qd1 Qd8 Ke2 Kd7 Ke3 a5 Kd4 e5+ Kd5 h5 c4 h3 g4 h2 b4 e3 d4 a3 g5 e2 f3 e1B b5 a4 c5 a2 g6 a3 g7 e4 Bg2 e3 Ne2 Qe8 Rg1 h1N Nc3 e2 Bg5 Na6 Bh4 Bd2 Qe1 Ng3 Rc1 a1R Bh1 a2 Na4 Nf5 Rg4 Qe3 c6+ Kc7 Rc2 Rb1 f4 a1R Rc4 Rh6 Rc5 Kb8 c7+ Kb7 Rc6 Bc5 Kc4 Nf6 g8R Be6+ d5 Nb4 R8g5 Bd7 d6 Nbd5 Qg3 Ng7 Qe1 Bf5 d7 Qg3 d8Q Bg1 Qd6 Bh2 c8Q+ Ka7 Qce6 Kb7 Qa3 Re8 Qd3 Kb8 Qd7 Re3 Kd4 Rf3 Ke5 Rf2 Kd6 Qf3 Qe6 Kb7 Qee3 Qe4 Qh3 Qe3 Rc5 Kb8 Kc6 Kc8 Rc4 Kd8 Kb7 Qg3 Qef1 e1Q Ka7 Qee3 Qe1 Kd7 Rc6 Kd8 Re6 Kc8 Rc6+
q1r1r3/k3n3/Q1R1n3/KpRB4/QPbPr1nb/N1pQqp2/3B2q1/4rR2 b - - 0 1 illegal: No possible last move
rbQ3RQ/1Pp1rb1n/Nr2n1qq/KN1B1q2/1p2Q3/1PrB4/1p6/3nB1k1 b - - 0 1 illegal: Other
1r1bnk2/4q3/4n1nN/R5pp/N1R1P1q1/bR2N1Pp/qQ1r1n1B/3QK2b b - - 0 1 illegal: No proof kernel
8/1KN1bB2/Q2rQb1Q/1p1n2n1/5pq1/P1Rn1rb1/N1pq1P2/qN3bBk b - - 0 1 legal: proof: c4 e5 b4 d5 d4 dxc4 g4 h5 a3 hxg4 d5 a5 Ra2 axb4 Rd2 Qf6 Rd3 Qd8 Rd4 exd4 Kd2 Ke7 e4 Kf6 h4 Ke5 h5 Kf4 h6 b5 h7 c5 e5 f5 d6 g5 e6 d3 d7 g3 e7 g4 e8N b3 Kc3+ d2 Ng7 b2 Be2 g2 Rh3 g3 Rh5 Nc6 Bf1 Be7 Qe2 Nb4 Rh1 Nf6 Qe1 Ra6 Qe6 Nd3 Qd5 Rf8 h8Q Rd6 Qc6 Nd5+ Kc2 c3 Kb3 c2 Rh6 c4+ Ka2 c3 Ne2+ Kf3 Kb3 d1Q Rh5 g1B Bf4 g2 Nc1 Bh2 Qb6 g1N Rh3+ Bg3 Qh6 Rff6 Be2+ Kg2 Bh5 Qg4 Ne6 Nf3 Nc7 Ng5 Na2 c1B Bf7 c2 Qa6 Be3 Be5 Bd4 Bf4 Bh4 Bh2 Kh1 Rf3 Be5 Bg1 Bg3 Ne6 Qa5 d8Q Qd2 Qd7 Bb7 Nc7 Bc6 Nbc3 Ba8 Qe6 Bb7 Na4 b1Q+ Nb2 Ne1 Nb4 Nh3 Qd7 Ne3 Qe6 Qa1 Nd1 Be4 Na2 Nd5 Ndc3 Bd3 Nb1 Bf1 Rc3 Nd3 Qe1 Rfe6 Qe5 f4 Qf5 Re3 Qe4+ Rf3 Qc4 Nb6 Qce6 Nc5+ Kb4 Bhf6 Ka5 Nd5 Qb6 Nd3 Ka6 Bg7 Kb7 Bgf6 Bh5 Ng5 Qa6 Qh4 Be8 Qh3 Bh5 Qg4 Bf7+
3BQNR1/n2p4/3kpKN1/rp1Pr3/qQq1bP2/1B2b2N/nrb3B1/n3r3 b - - 0 1 legal: proof: e4 a5 b4 axb4 a4 g5 h4 gxh4 e5 c5 e6 c4 Ra3 fxe6 Qf3 e5 Rb3 cxb3 Qd1 e4 Ke2 h5 Ke3 b5 Kf4 b2 Ke5 h3 f4 e6 g4 Ke7 c4 h4 d4 e3 g5 e2 a5 e1N a6 h2 g6 b3 c5 h3 a7 Nf6 g7 Qa5 g8Q Qa4 c6 Nd5 c7 Rh5+ Ke4 Bb7 Na3 b1R Bc4 b2 Bd2 Nc2 Qe1 Na1 Ba5 Nc6 Bb3 Ndb4 Nc4 Na2 Ne5 Kd6 Ng6 Bg7 Qe8 Re5+ Kd3 Bf6 Nf8 Bh4 Bb6 Bf2 Qd2 Be3 Qb4+ Rc5 Ke4 Re1 Qd2 b1R Qb4 Rb2 Ba5 Rd8 a8B Na7+ Kd3 Bg2 Bf3 Bf1+ Ke4 Ra8 Bg2 Be2 Bb6 Bd1 c8N+ Kc6 Ne7+ Kd6 Qa5 Rg5 Neg6 Bc2+ Kf3 Rc5 Kg4 Re5 d5 Qc4 Bd8 Qa4 Ne2 Qc4 Rf1 h1B Ng1 h2 Nh3 Qa4 Rg1 Qc4 Bf1 Bhe4 Bg2 h1Q Qd2 Nc6 Qc3 Ra5 Qd4 Na7 Qc3 Bf5+ Kg5 Bfe4+ Kf6 Qh2 Bf1 Qa4 Rg5 Qe2 Bg2 Qec4 Qb4+ Qc5 Nh4 Rg1 Rg8 Re1 Qd4 Qcc4 Nhg6 Bf2 Qd2 Be3 Qb4+
5B1q/QNpN2pr/1Q3qb1/QBPq1n2/1N4K1/R1b2P2/1rq2bp1/2kn3r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 a4 hxg4 e5 f5 e6 f4 Ra3 dxe6 Be2 e5 Bf1 e4 Rg3 fxg3 Ke2 Kf7 c4 Ke6 h4 Kf5 d4 e5 h5 b5 f3 b3 h6 g2 a5 b2 a6 b4 d5 b3 h7 g3 d6 e3 d7 Kf4 a7 e4 Nc3 b1Q Qd3 b2 Qc2 Nf6 Qd2 Ng4 Qd1 Qa1 Nb1 Bc5 Qd2 Nc6 Qd4 Nf2 Qd1 Ne7 Qc2 Nf5 Na3 b1Q Qb2 Rb8 a8Q Nd1 Qb6 Qaf6 Qaa5 Qc2+ Bd2 Qg8 d8N Qd5 Nb7 Bd4 c5 Bc3 Nc4 Be6 Qba7 Bf7 Ne5 Bh5 Nd7 Bg6 Nd6 Rb2 Nb7 Re8 h8Q Rd8 Qh2 Rh8 Q5b6 Rh7 Ke1 Bd4 Bc3 e2 Nh3+ Ke3 Nf2 g1Q Nd3 g2 Qh4 Qh2 Nb4 Qhe5 Qba5 Qe8 Qh2 Qc8 Qd6 Qh8 Qdb6 Be5 Nc6 Kd3 Bd2 Bc3 Nb4+ Kc4 Rh6 Kb3 Rh4 Nde3 Kf2 e1R Bb5 Rh1 Rg4 Nd1+ Ke2 e3 Rd4 R1h2 Rd3 R2h6 Ke1 e2 Re3 Rh3 Rd3 Nde3 Kf2 Rh1 Be1 Ne7 Kg3 N7f5+ Kf4 Nd1 Bg3 e1B Kg4 Bf2 Bf4 Ra2 Be5 Kb2 Bd6 Kc1 Bf8 Rb2 Re3 Bd2 Rb3 Bc3 Ra3
2b3bq/r1B2b2/Pr4Nq/1nN2NQ1/1pn2R2/rkp3b1/pP4KR/2RqQ3 b - - 0 1 illegal: No proof kernel
2r5/1B3Rp1/2N1NR2/q1p1nn1r/2qnK1Pk/P2Qp2r/1qr4Q/NQ3bb1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 e5 dxc4 e6 h4 Bb2 fxe6 Bd4 e5 Bc3 e4 Be5 Qd4 Bf4 Qd8 Bg3 hxg3 Ke2 Kf7 Ke3 Kf6 f4 e5 d4 b5 h4 c3 h5 c2 h6 c1Q+ Qd2 b3 a3 g2 h7 b2 f5 Kg5 f6 b4 d5 b3 d6 Ba6 f7 Nh6 d7 Nc6 Rh4 Nf5+ Kf2+ e3+ Kf3 Qc4 Qd4 e2 Nc3 b1R Na4 e1R Rh6 b2 Rg6+ Kh4 Qe4 Re2 Nc5 Rc8 Nb3 Bc5 f8N Rc2 Ne2 Bg1 Rf6 Re1 Qd3 b1Q Ned4 Qb2 Nfe6 e4+ Kf4 e3 Ke4 Ne5 Be2 c5 Bf3 Qe8 d8Q Qeb5 Qb6 Qa5 Qb7 Ree2 Rf1 Rf2 Na1 Bb5 Be2 Rf3 Rf7 Rh3 Bf3 Bf2 Qb8 g1N Qb6 Ne2 Rf6 Qcc3 Nc6 Ned4 Bg2 Bg1 Rf7 Nh6 R1f6 Bc4 Qb3 Nhf5 Qa2 Qcb3 Qb1 Qbb4 Qdd1 Bf1 Qd3 Qc4 Bf3 Rhd8 Bg2 Rd5 h8Q+ Kg3 Qd8 Kh4 Qc7 Rdd8 Qd6 Rh8 Bh1 Rh5 Bg2 Ng6 Qh2 Ne5 Kf4 Nb3+ Ncd4 Qcb4 Bb7 Qbb5 Nc6 Nbd4 Ke4 Qba4 Kf4 Qc4 Ke4
q3Rn2/3npp1N/2PbB1QK/br1rr2R/2b1QPN1/2p1Nn2/3n3q/3Q3k b - - 0 1 illegal: No proof kernel
2B3br/2p1b1q1/r1r1pn2/1K3B2/1P1N1Nq1/2N2qn1/R1P1Q1Qp/1knr2B1 b - - 0 1 legal: proof: h4 f5 b4 d5 a4 b5 e4 bxa4 h5 f4 h6 dxe4 Ra3 gxh6 Re3 fxe3 Rh2 h5 Rh1 h4 Ke2 Kd7 f4 Ke6 d4 Kd5 g4 Kc4 g5 a5 d5 h5 g6 a3 g7 h3 f5 h4 d6 a4 f6 h2 d7 a2 f7 a1R Nf3 a3 Bd2 h3 Ne1 a2 Nf3 Ra6 Rg1 h1N Rg3 h2 Rg1 Rc6 Be1 Na6 Qd2 Ng3+ Kd1+ e2+ Kc1 e3 Kb2 Nf6 Ka3 Nc5 g8B Nd3 Ka4 Nc1 Nc3 Qe8 d8N Be6 Bf2 Qd7 Bg2 e1R Ka5 e2 Bh7 Rd1 Bh3 e1Q B7f5 Qe2 Nd4 Qf3 Rh1 Bd5 N8e6 Qc8 Nf4 Qd7 Bh7 Qdg4 Bg1 Be6 Qg2 Bd5 Nb1 Be6 Bf5 Bd5 Na3+ Kc3 Nb1+ Kb2 Kb5 Bb3 Nc3 Bd5 Ne4 Kb1 Bc8 e6 Qe2 Be7 f8Q Bc4+ Ka4 Bd3 Qg8 Kb2 Nc3 Bh7 Qg6 Bg8 Kb5 Rb1 Nb3 a1Q Qge4 Rdd6 Nd4 Ra6 Qg2 Rdc6 Qd3 Na2 Qde2 Rd1 Be3 Nc1 Rf1 Qg7 Bf5 Qfg4 Bg1 Qa3 Na4+ Kb1 Rf3 Qa1 Ra3 Qc3 Ra2 Qcf3 Nc3+
1n2n1B1/1p1pP3/1nNP2b1/1rbR3b/brb1Q1NQ/Qp2R2K/6n1/1qN2k2 b - - 0 1 illegal: Other
3N4/2prr1Bn/1qR4N/QN1bbnkp/5b2/bbP1rr2/3QPpK1/6RR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c3 gxh4 g3 d5 f5 d4 f6 d3 Bh3 exf6 Be6 f5 Bb3 f4 Bc2 dxc2 Kf2 Ke7 b4 Kf6 d4 h5 d5 a5 b5 h3 b6 a3 d6 a4 d7 a2 g4 h2 b7 f3 Kf1 f2 Bd2 c1B Kg2 f1R Bf4 a3 Qb3 Ne7 Qb2 Bg7 Qc2 Re8 Be5+ Kg5 Bd6 f5 Qb2 f4 Nd2 f3+ Kg3 Nf5+ Kh3 Be5 Qb5 Re7 Nb1 Bcf4 Qa5 Qe8 d8R Nd7 b8Q Nf8 Qb2 Qc6 Qd2 Be6 Bb4 Bc4 Rd6 Qb6 Rc6 Nh7 Bc5 Rf8 Bd4 f2 Kg2 Rd1 Qb2 Rd3 Qd2 Re3 Nh3+ Kh4 g5 Bb3 g6 Rf6 Rg1 h1B+ Kf1 Bf3 Ng5 Bfd5 Ne6 Rff7 Nd8 Rf6 Rh1+ Kg5 g7 Rf8 g8N Rff7 Qc2 Rf8 Nd2 Rf6 Re1 a1B Nb1 a2 Qd2 Bb2 Nh6 a1R Na3 Rd1 Nb5 Ba3 Rg1+ Rg3 Rh1 Rf3 Kg2 Rfe6 Qe3 Rd3 Reg1 Rd7 Qd2 Rde3 Qc2 Ree7 Qd2 Bed6 Bh8 Bde5 Bg7
Q1q5/K7/n1Pb4/Rb1np1rb/3pb1rp/4rBN1/1n1BP2Q/1Q1krRB1 b - - 0 1 legal: proof: g4 a5 d4 g5 b4 axb4 h4 gxh4 Nd2 c5 Ndf3 cxd4 g5 f6 Ne5 f5 Ng4 fxg4 Kd2 Kf7 Kd3 Ke6 Kc4 Kf5 Kc5 Ke4 f4 d5 a4 b5 c4 h5 g6 g3 g7 h3 a5 h2 a6 b3 a7 d3 f5 d4 f6 b2 f7 b1B Bd2 h4 Bb4 Ke3 Be1 g2 Qa4 d2 Nf3 d1N Qa6 g1R Ra2 e5+ Qd6 b4 Ra3+ b3 Ng5 Bd3 Ba5 b2 Ne4 b1R Bg2 Bg4 Bf3 Bh5 Ng3 Ne7 g8Q Nb2 Qdg6 Qc8+ Kb6 Rbe1 c5 Na6 c6 Rh7 Ra2 Bb5 Qb1 Rg7 Bd2+ Kf2 Ra5 Rg4 Qg5 Rg2 Rg1 h1B Qf4 Rg5 Nf5 R2g4 Qh2+ Bg2 Ng3 Rg7 Bh6 R7g5 Rf1+ Ke3 Qg6 Kd2 Qb1 Qf5 Kb7 Qe6 Kb6 Nd5+ Kb7 Be7 f8B Bd6 Bfg7 Rf8 a8Q Qc8+ Ka7 Rf5 Bf6 Rff4 Bd8 Re4 Bb6 Re3 Bc5 Kc3 Bb4+ Kb3 Bd2 Bh1 Qa1 Kc2 Qa2 Rb3 Be3 Kd1 Bg1 Re3 Bf8 Bc7 Bb4 Bd6 Bd2 Rf4 Bg4 Be4 Bf3 Rfg4 Qb1+
5rnr/rN1Qk3/2b1Bpb1/p1b3pb/3PR3/1K5n/3qQP1N/1nRQnN2 b - - 0 1 illegal: No proof kernel
R2rrbR1/2Nn1p2/p2Qq2N/1Bbn2b1/2r5/1K2QQ1p/2P2Pn1/2Nnk2b b - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 e5 gxh4 b5 d6 Bb2 dxe5 Bc3 e4 Bb4 cxb4 d4 Kd7 Kd2 Ke6 g4 Kd5 g5 e5 b6 h5 b7 b3 Kc3 a3 g6 e3 g7 Ke4 d5 h3 d6 a2 d7 h2 Qe1 b2 Qe2 a6 Qd1 e2 Nf3 e1B+ Kb3 h4 Qc1 Qe7 d8Q Bb4 Qcd1 Nf6 g8Q Qe6+ Bc4 Nbd7 b8N Bb7 Ng1 Bbc5 Qg7 Nd5 Na3 b1N Qf1 Nbc3 Qc8 Nd1 Ne2 Kf3 Qg6 e4 Nc6 e3 Nc1 e2 Ne7 e1N Nb5 Ng2 Qe8 Rd8 Ng8 h3 Rb1 a1B Nc7 Bf6 Rg1 h1R Bb5 Rh4 Nh6 Rc4 Qe1 Bg5 Qc3+ Nge3 Rg4 Re1 Qe7 Re2 Qd6 Ba8 Qce5 Ng2 Qd3+ Re3 Rb2 Bf6 Rg8 Bg5 Qdc3 Bb7 Na2 Ke2 Nc1+ Kf1 Qd4 Re4 Qf3 Ke1 Qde3+ Kf1 Qff4 Qf5 Ne8 N5b6 Ka2 Ne1 Nc7 Ree8 Ba4 Bh1 Qff3 Nd5 Rb8 Ng2 Ra8 Qg6 Bb5 Qe6 Qd3+ Ke1 Kb3 N7f6 Qd4 Nd7 Qde3+
k3QbrR/N2b3N/rb2B1r1/1n1pp3/1n1P2pR/2P2q1Q/r5qb/N1K4Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 e5 hxg4 e6 c5 Ke2 b3 Ba3 b2 Bb4 cxb4 Ke1 fxe6 Bg2 e5 Bf1 e4 a4 g5 f4 d5 h4 Kd7 d4 Kc6 Kd2 e5 f5 b5 h5 Kb7 a5 b3 f6 g3 h6 g2 f7 g4 h7 e3+ Ke1 e2 Kd2 e1B+ Kd3 b4 Nd2 b1Q Be2 b2 Rh3 b3 Re3 Bd7 Rh3 Qa2 Rh4 b1R a6+ Ka7 Nh3 g1B Ng5 b2 Nb3 Ba5 c3 Ne7 Kc2 Nf5 Bd3 Rg8 h8Q Qf6 Nh7 Nd6 Bf5 Bh2 Be6 Nc6 Qh1 Bb6 Kd2 Kb8 a7+ Kb7 Kc2 Nb5 Kd2 Rf1 Rc1 Rg6 Na1 b1R+ Rc2 Rd8 a8N Nb4 Nc7 Qf3 Rb2 Kb8 Rc2 Rb3 Rb2 Rf2+ Kc1 Ra3 Rb3 Nd6 Nb5 Ka8 Na7 Ra6 Ra3 Nb5 Ra4 Be7 f8Q Rd2 Qe8 Bf8 Qg7 Rf2 Qh6 Qae2 Qe3 Qg2 Qh3 Qef3 Ra3 Ra2 Ra5 Nd6 Rc5 Rb8 Rc8 Nb5 Qf7 Bfc5 Rh8 Rbg8 Qe7 Bd6 Qf7 Bf8 Qe8+
1n1b4/pN1r2p1/1kQ2b1n/4BBpq/2b2R2/qn2P1P1/1QrbB3/1Q1n2KN b - - 0 1 illegal: No proof kernel
4rb1r/nkRq1prn/2N2rp1/Q2Q3R/5Q2/N1Nb1qPb/3pBPb1/6K1 b - - 0 2 legal: proof: d4 a5 Kd2 c5 b4 e5 g3 h5 Bh3 e4 Be6 cxd4 Qf1 axb4 Qg2 e3+ Kd3 h4 Bd2 exd2 Bh3 Be7 Qc6 Bf8 Bf1 h3 Qg2 hxg2 h4 d1B e4 d5 a4 Kd7 c4 Kc7 c5 b5 c6 g6 a5 b3 e5 b2 e6 b4 a6 b3 e7 Nf6 e8Q Qd7 a7 Bf3 h5 Nh7 Na3 b1R h6 b2 Ne2 g1R Qe6 Bg2 Rh5 Rh1 Nc3 Rd1+ Ke2 b1B Qe4 Rd2+ Ke1 d3 Qf4+ Kb6 c7 d4 Ra2 Kb7 Rc2 Nc6 Rc1 Rh3 Be2 Rg8 Rc2 Rg7 Rc1 Rb2 Rc2 Rb6 Rc1 Bd5 Kf1 d2 Kg1 d3 Rc2 Bg2 Rc1 Ng5 h7 Ra6 h8Q d1Q+ Bf1 Qf3 Be2 d2 Rc2 Rh7 Qhd4 Rg7 Qd5 Nh7 Rc1 Bd3 Rc2 Rb8 a8Q+ Kb6 Rc1 Na7 Rc2 Bb7 Rc1 Re8 Qd8 Bc6 c8N+ Kb7 Q8a5 Rh4 Ne7 Bh3 Qdc5 Bd5 Rc2 Rf6 Nc6 Qfg4 Qcc4 Bdg2 Qcd5 Qf3 Ne7+ Nc6 Na4 Bf1 Re5 Ng5 Rc4 Rhh7 Nc3 Rh8 Rc5 Nh7 Rh5 Bfg2 Rc4 Rd6 Rc5 Kb8 Rc4 Na7 Rc7 Rf6 Nc6+ Ka8 Rc8+ Kb7 Rc7+
1Nn1nB1K/r1b1pb1p/q1P4q/b1k2pr1/B7/Qq1p1R2/3PRr2/5RQQ b - - 0 1 illegal: No proof kernel
N3BB1b/QKR1rqnP/6pp/1p1Q2pQ/1nr2q1R/k5Pb/8/B1n1rq2 b - - 0 1 illegal: No proof kernel
rR2q2B/1p4n1/p4R1p/RNqQ2r1/K3b1pk/7P/b4Prq/1nbQ2NQ b - - 0 1 illegal: No proof kernel
b1R1r3/1pn1Pp1r/2Q1npn1/Kp2r3/1Bb1NQ2/3R1P2/2NR2k1/1N2b1qq b - - 0 1 illegal: Other
1NRR2Q1/p3r2k/1q2nrn1/Q4p2/3q1n2/p3bRP1/KB1pbPr1/2b2NQ1 b - - 0 1 legal: proof: c4 g5 d4 d5 a4 b5 h4 gxh4 e3 bxa4 Be2 e6 Bf3 dxc4 d5 Ke7 d6+ Ke8 Bd5 exd5 Kd2 c5 Kc2 h5 b4 f5 Kb2 Kf7 d7 Kg7 b5 a3+ Ka2 c3 g3 c2 e4 h3 e5 d4 b6 d3 e6 c4 e7 c3 e8R d2 b7 h4 Re5 h2 Re6 h3 Qe2 Na6 b8Q Qb6 d8Q Nc7 Qf3 Ne7 Qbb7 Rh6 Re5 Ne6 Qg4+ Kh7 Qa6 Rf6 Re1 Ng6 Qa5 Ba6 Qd1 Be2 Nf3 Bc5 Bb2 c1B Nd4 c2 Nc6 Be3 Nc3 Rb8 Rb1 Rb7 Nd5 Re7 Nb8 Qd4 Rhf1 h1R Qf8 Rh2 Qg8+ Kh6 Rg1 Rg2 Rh1 h2 Ra1 Bg5 Ne3 Bf4 Nf1 Be3 Rg1 h1Q Rb1 Qhh4 Rh1 Qh5 Rh4 Qb6 Rc4 Qg4 Rc8 Qf4 Ba1 Qg4 Rb3 Qa4 Bb2 Qad4 Qe8 Kh7 Rd3 Bh6 Rf3 Be3 Qg8+ Kh6 Qc5 Bb5 Rd8 Bf4 Re5 Be3 Qe8 Kh7 Nh2 Bf1 Qa5 Be2 Ba1 Bb2 Qg1 Bb5 Rc5 Be2 Rcc8 c1N+ Kb1 Nd3 Ka2 Ndf4 Nf1 Bc1 Bb2 Rb7 Qf8 Re7 Qg8+
4Q1BB/1Q1RNr2/qr4pN/2Q1rN1p/P3r2P/3k2pr/1n4pb/1K1b2bn b - - 0 1 illegal: No proof kernel
Q5R1/nb2r2B/1n3P2/1Rpn3p/2PNnpr1/b2kQr1b/1pq3Q1/2BB3K b - - 0 1 illegal: No proof kernel
K1br4/2qppr1B/N2PrB1b/p4r1k/2n1BnQ1/Pp3N2/2b5/R1Q1n1Q1 b - - 1 2 legal: proof: e4 g5 g4 c5 f4 gxf4 b4 cxb4 a3 f5 g5 fxe4 Ne2 h5 Rg1 Qa5 Rg4 hxg4 Ng1 Qc7 Bc4 Rh5 Nh3 Bh6 Nc3 Bg7 Bb2 Qd8 Ke2 Rh7 Qh1 Nc6 Rf1 Nb8 Bc1 Bf8 Nb1 Rh8 Qf3 Nc6 Ke1 Rh7 Rh1 Rh4 Qd1 Rh8 Ng1 Nb8 Bb5 Nc6 Bf1 Nb8 Ke2 Kf7 d4 Kg6 h4 a5 c4 b5 c5 f3+ Ke3 g3 c6 g2 h5+ Kg7 d5 f2 Kd4 b3 Kc5 b2 c7 e3 Kb6 e2 h6+ Kg6 h7 e1N d6 b4 Nf3 g1R Nbd2 b1B Ne4 b3 Bd3 f1R Bb2 Rf2 Bf6 Rgf1 Qc1 Re2 Nc5+ Re4 Qe3 Bc2 Na6 Nc6 Qg1 Ne5 Qg4 Rb8+ Ka7 Rb5 Ka8 Nc4 Rg1 Rf5 Rh1 Ree5 Be4 Rf2 Rf1 Bg7 Qg1 Kh5 g6 Bh6 g7 Nd3 Ra1 Re6 Bd4 Nf6 g8B Nd5 Bf6 Ree5 Be6 Rf8 h8Q Ne1 Qhg7 Nf4 Bg8 Re6 Bh7 Rg2 Qh8 Rgg8 Qhg7 Rf7 Ka7 Bb7 c8Q Rgf8 Qc7 Bc8 Ka8 Rg8 Qcc5 Qc7 Qce3 Rgf8 Qc1 Rd8 Q7g4#
2b1k3/N1p1r2N/1q1b2bK/1b1R2r1/1QP2n2/1bNq3R/1np1Ppp1/3B1RQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 d4 Bb2 exf6 Nc3 f5 Nb1 f4 Bc3 dxc3 Kf2 f5 a4 g5 d4 b5 h4 f3 Ke3 g3 d5 g4 Kf4 g2 d6 b3 h5 g3 a5 b2 h6 f2 h7 b4 a6 b3 a7 Nc6 Ra2 Ne5 Na3 b1B Qc1 b2 Qd1 Nf6 Kg5 f4 Qe1 f3 Ra1 Ba2 Nb1 Nd3 Nh3 g1Q Bg2 Bb3 Ra5 f1B Rd5 Qb6 Qd2 f2 Be4 Bg2 Rf1 Rb8 a8Q Nh5+ Kg6 Qd7 Qa1 Nhf4+ Kg5 Be7+ Kh6 Rg8 h8R Bf3 Bh7 g2 Ng5 Bg4 Qe1 Ba6 Qa5 Bb5 Qb4 Qd8 Be4 Bc8 Nh7 Ra8 Nf8 Rg7 Nh7+ Bf8 Qd1 Ra5 Qe1 Nc1 Bc2 Ncd3 Bd1 Qd7 Nd2 b1B Ne4 Nb2 Neg5 Bg6 Ne4 c2 Nc3 Qf5 d7+ Kf7 d8N+ Ke8 Nc6 Qd3 Rg8 Re7+ Rg7 Re3 Na7 Bd6 Rd7 Re7 Rh5 B5a4 Rhh1 Rg5 Rh3 Be5 Rd5 Bb5 Rfh1 Bd6 Qg1 Bcf5 Qh2 Bg4 Rf1 Bc8 Qg1
4n1n1/1Q2qp1N/RBrk1PNn/4qp1q/n2rQ1b1/1p2K1Q1/2P2B1p/b2B4 b - - 0 1 illegal: No proof kernel
1r5Q/2KN1b2/3prrR1/3P3q/2k2R1P/pp2n3/q1NBprNn/1QQ1b2n b - - 0 1 legal: proof: e4 b5 g4 f5 b4 fxe4 a4 bxa4 b5 h5 b6 hxg4 Bd3 c6 Bb5 cxb5 Ke2 Kf7 Ke3 Ke6 Kd4 g5 Kc5 a5 f4 a3 c4 a2 h4 g3 d4 g2 b7 e3 Nh3 g1R Bb2 a4 Bc3 g4 Be1 g3 Qe2 b4 Qd2 e2 Na3 b3 Qb4 g2 Nb5 a3 Rb1 a1Q Qa4 Rh6 Bg3 e1R Rc1 Qe8 Kb6 Nc6 b8Q Nb4 c5 Kd5+ c6 e5 f5 e4 f6 e3 f7 Qa2 Kc7 Rgf1 Qba7 g1N Q7a6 Rf2 Bf4 Nf3 Rf1 Rb8 Qa8 Rf6 Q4a5 Bg7 f8N d6 Nd7 Ne7 Ra1 Kc4 d5 Qg6 Nd4 Nd3 Nc2 Qh5 Rc1 Ree2 Qe1 Nh2 Bg5 Bh8 Nf4 Nf5 Ng2 Bg7 Ra1 Bh6 Qb1 Re1 Nc5 Be6 Nd7 Bf7 Bf4 e2 Be3 Re6 Bd2 Ne3 Rg1 Bg7 Rf1 Bc3 Rg1 Rb6 Qh8 Rb8 Rf1 Rff6 Rf2 Rf1 Rf4+ Bd4 Qb2 Rf3 Rg1 Nf2 Qb1 Nh1 Nge1 Rb4 Rg6 Rf2 Ng2 Rb5 Kd8 Rb6 c7 Rb8+ c8Q+ Kb5 Bc1 Bc3 Kc7 Be1 Bd2 Rf5 Qe5 Rff6 Qh8 Qf3 Qeb2 Qh5 Rf3 Kc4 Q2c1 Re7 Rf5 Ree6 Rf4+
nR3b2/2q1pBP1/Q1qnQ1p1/brnn4/1p1BN2N/5bP1/2pK4/Nk3Qr1 b - - 0 1 illegal: Other
N1q1R2K/2pppN2/5Q1R/n7/1r4bb/PpP3B1/1rQr1N2/bkqr2Qn b - - 0 1 illegal: No possible last move
1n1Nn3/r2RRp2/2bP1q2/rq1p2B1/b3B2b/B1p1Q2n/2p1QP2/4KRbk b - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 d5 h5 d6 hxg4 Nc3 e6 Nd5 exd5 a4 Rh4 e4 Kd7 a5 Ke6 a6 Ke5 h3 c5 a7 g5 Bb2+ Kf4 e5 b5 e6 g3 e7 g2 e8R g4 Ra5 g3 Re7 b3 Qh5 b4 Qd1 Nf6 Ra6 Bb7 Ra2 Bc6 Rb7 Ne8 Kd2 Be7 Bh8 b2 Ne2+ Kf3 Rd7 b1Q Ke1 g1N Bb2 g2 Ba3 b3 Rc2 Rf4 h4 b2 h5 Bh4 h6 Qf6 h7 Nh3 Rd2 Qd3 Rg1 b1B Nd4+ Ke4 Ra2 Bc2 Ne6 Qb3 Rb2 Qb5 Nd8 Bb3 Qc2+ Kf3 Bd3 Rg4 Rf1 g1B Qd1+ Kg2 Re2 Kh1 Ree7 Bc2 Qe2 Bd1 Bc2 Rg3 Bc1 Ra3 Bg5 Ra5 Bg6 Ba4 h8B Qf5 Bd4 Qf6 Bde3 c3 Bd3 c2 Bc1 c4 Ba3 c3 Bf5 Na6 Bh7 Rb8 a8Q Rb7 Qa7 Nb8 Qae3 Rba7 Be4+
7R/p1r1b1K1/2p3N1/1pQRN2p/B1bb1n2/1R2nPN1/Prq1Q1nq/2k4n b - - 0 1 illegal: No extended proof kernel
B1Q2KQ1/p1p5/1p3nR1/N3bq1k/rQ1pqr1b/4N3/P1Pb2b1/1nN2B1r b - - 1 2 illegal: No proof kernel
3Q1r1q/1QbpK3/b2Pb2p/BR1b1rR1/k4n2/1P5r/1pR1rNp1/1B1Bn3 b - - 0 1 illegal: No possible last move
Qr6/2KN3p/pPQ2QbB/2n1p2n/BN1qn1kP/R3b1p1/b2r4/1nNb4 b - - 0 1 illegal: No proof kernel
r7/3n2pR/1Q2Qp2/1pq4b/p1n5/BPb2QPn/rn4BB/Nbkb1KR1 b - - 0 2 illegal: No proof kernel
2r2b1b/1r2QBp1/Np1pn2B/2q1n1n1/2PRb1Q1/p2B3Q/2nP2Rb/2k2K2 b - - 0 1 illegal: Other
3b1qq1/2N2N2/2QnN2p/5ppb/1KR2kP1/Q1R3pr/p1P2rBn/1nr2Q2 b - - 0 1 illegal: No proof kernel
r3NnQR/r3rp1Q/1b2PP2/5qB1/2p5/kNQ4N/pnpbbpK1/q6R b - - 0 1 legal: proof: c4 g5 f4 d5 a4 dxc4 h4 gxh4 f5 b5 f6 bxa4 e3 e6 Bd3 Nd7 Be4 Nb8 Bf5 exf5 Kf2 Kd7 d4 Kc6 b4 Kb5 g4 h5 g5 c5 e4 a5 d5 a3 d6 a4 g6 f4 e5 h3 e6 h4 g7 c3 d7 a2 Ne2 c2 Kf1 h2 Qd5 a3 Qb7+ Ka4 b5 h3 b6 f3 Qd5 f2 b7 Nh6 g8N Qa5 d8Q Nd7 b8Q Ba6 Qf5 Ng4 Bh6 Nge5 Qb2 Nd3 Qb7 Nb2 Bc1 Bh6 Qg5 Nf8 Qg6 Bd2 Ne7 Bc4 Rg1 h1Q Qbc7 h2 Nc8 Ra7 Qcg3 Re7 Qc3 Qe4 Qdd3 h1R Nf4 Qf5 Kg2 R1h3 Qd8 Be2 Rh1 c4 Nd6 Rd3 Ne8 Rdd7 Qh7 Ra7 Nh3 Qae5 Qg3 Kb4 Qgg8 Ka4 Qd4 Qa5 Nc3+ Kb4 Rb1 a1B Ne4 a2 Qe3 Qae5 Nc5 Qd4 Nb3 Ka3 Qf3 Be1 Rh2 Qd2 Qhh5 Ng6 Nf4 Qdd3 Qf8 Qd1 Nc7 Bc3 Qg7 Rha8 Qg8 Nf8 Ne8 Bb4 Bd2 Nd3 Qhg6 Bb2 Rh8 Bd4 Q6h7 Nb2 Nh3 Bb6 Bg5 Bd2 Qc3 Nd3 Rb2 Qa1 Rb1 Nb2 Rh1
1qNqN3/2pP3p/nr2Bb2/1pr1p1k1/3BP2p/bNnr1QQ1/1R3K2/Q4b2 b - - 0 1 legal: proof: b4 d5 a4 a5 e4 axb4 c4 dxc4 h4 f5 h5 f4 h6 gxh6 Ra2 h5 Ra3 h4 Re3 fxe3 g4 Kf7 f4 Kg6 d4 e5 g5 b5 f5+ Kf7 g6+ Kf6 a5 e2 d5 c3 d6 c2 d7 b3 g7 b2 a6 Bb4+ Nd2 b1R a7 Ba3 Ngf3 Ne7 g8Q Bb7 Qg3 Na6 Kf2 Bd5 Rh2 Bc4 Ng5 Nd5 Bh3 Nc3 Bb2 c1B Ne6 Qb8 Nb3 Bg5 Qe1 Rc1 Ng7 Rc2 Qa1 e1Q+ Kf3 Qg1 Ne8+ Kf7 f6 Kg6 f7 Bf1 Bg4 Bf6 f8Q Kg5 Rf2 Qd8 Rg2 Rb8 a8N Qa7 Nb6 Rg8 Nc8 Rb6 Qf7 Rc1 Kf2 Qb8 Rh2 Rg6 Rg2 Rd1 Rh2 Rd3 Rg2 Bh8 Qff3 Rgc6 Rh2 Rc5 Rg2 Nd5 Bd4 Nc3 Be6+ Kh6 Ke1 Bg7 Rb2 Bf6 Qh1 Kh5 Kf2 Kh6 Qhh3 Kh5 Qf3+ Kg5 Qhg3+
Bkq1n1Q1/bB3r2/r2pqp2/1pqp1p2/Q1QPR3/1b3PB1/1Kn1N3/n6R b - - 1 2 legal: proof: h4 g5 b4 gxh4 b5 e6 Nc3 c6 Nd5 cxd5 c3 a6 Qa4 axb5 Qc2 b4 Qf5 exf5 d4 h5 f3 b3 Kd2 b2 e4 b1N+ Kd1 Bc5 Kc2 d6 g4 Kd7 a4 Kc7 c4 h3 a5 h2 a6 h4 g5 h3 e5 Nd7 g6 Kb8 e6 Na3+ Kb2 Rh7 e7 Ngf6 e8Q Bb6 g7 Nc5 g8Q Bd7 Bd2 Nb3 c5 Ba4 Re1 Na1 c6 Bb3 Bf4 Ra7 Qd7 Ne8 Bg3 f6 Bb5 Rf7 c7+ Ka8 Bd3 Qe7 Re3 Qe6 Qa4 Bc5 Bb5 b6 Bd7 b5 Re4 Bb6 Bc8 Bc5 Ne2 Bb6 Re1 h1Q Rb1 h2 Qh8 Qg1 Nc3 h1Q Qh7 Qe1 Ne2 Qb4 Qg8 Qf1 Nc1 Qfc4 Ne2 N3c2 Rh1 Qc6 Bd7 Qb7 c8Q+ Qb8 Qc5 Qc8 Bc6+ Kb8 Qc3 Qc5 Qcc4 Rac7 Bb7 Rc6 a7+ Kc7 a8B Kb8 Qa2 Ba7 Qa3 Ra6 Qaa4
q1q3b1/6K1/pr1bpp1B/b3P3/pnnBRPpB/k7/2N1Q3/q1r2QRQ b - - 0 2 legal: proof: f4 b5 a4 bxa4 c4 d5 g3 dxc4 Ra2 g5 Ra1 g4 Bg2 h5 Bf3 Be6 Nc3 Bc8 Ne4 Qd6 Nf2 gxf3 g4 Qd5 g5 Qd8 Ng4 hxg4 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 c3 h4 c4 h5 f2 h6 f1Q h7 c2 d5 c3 d6 a6 g6 e6 g7 Qh3 d7 Qe8 d8B Nh6 Kf6 Bd7 g8Q Qf3 e5 Nc6 Qf1 Rc8 Ne2 Nf5 Nd4 Ne3 Rg1 Nc4 Be3 Bd6 Re1 c1B Kg7 c2 Bh4 f6 b3 Ka3 b4 Qe4 b5 Nb4 b6 Bd2 b7 c1Q b8Q Qa8 Qb5 Qa1 Bef2 Qd8 Re4 Be8 Be3 Bf7 Nc2+ Kb2 Qf8 Bg8 Bd4+ Kb3 Qfe8 Rc7+ Qed7 Qdc8 Qe7 Rc6 Qeb7 Rb6 Q7d5 Bf7 Qb7 Rd8 h8B Bg8 Kg6 Rd7 Bg7 Rc7 Bh6 Rc5 Kg7 Bc3 Ne1 Ka3 Qd5 Nc2 Qdc6 Ba5 Qe2 Nb4 Qf1 Nb2 Qbe2 Rc1 Nc2+ Ka2 Qc3 Nc4 Qce1 Kb3 Qe1f2 Ka2 Q2g2 Kb3 Qh1 Ka2 Ne3+ Ka3 Nc2+
1n1q3r/PQ3B2/p4bN1/2pb1nQp/R1npR3/2r2Q2/p1P1Nqr1/k4N1K b - - 0 1 illegal: No proof kernel
4QbR1/rnKNpBb1/7p/2ppPNqB/nN1P2p1/1r4B1/3kb2Q/1b3b2 b - - 0 2 legal: proof: h4 a5 a4 g5 b4 axb4 c3 bxc3 g4 gxh4 g5 f5 Ra3 Na6 Rb3 Nb8 Rb4 Ra5 Rd4 Ra8 Rg4 fxg4 e4 Kf7 Ke2 Ke6 Kd3 Ke5 Kc4 Kf4 Kd5 c5 a5 b5 e5 h3 g6 h2 g7 c2 a6 b4 a7 b3 Qe2 b2 Nc3 b1B Na2 d6 Nb4 Nc6 Nf3 Na5 Nd4 Nb7 Kc6 d5 Nf5 Nf6 g8B Nd7 Bf7 Nb6 f3 Qe8+ Kc7 Na4 Qf2 Bg7 Bb5 Qg8 Bbe8 Bf8 Bh5 Qg5 Bef7 h6 Rf1 h1B Qg1 Rb8 a8Q Bg2 Rf2 Bf1 Qh1 Nc3 Qa4 Rg8 Qe8 Rg6 Qg2 Ra6 Qh3 Ra3 Qh4 Na4 d4+ Re3 Bd2 c1B Be1 Rb3 Ra2 Be3 Rb2 Bf2 Qh2+ Bg3 Ra2 Ra8 Ra1 Ra7 Ra3 Nc3 Ra6 Na4 Rg6 Be2 Rg8 Bd7 Nh4 Ke3 f4 Bf2 f5 Bdb5 f6 Bg3 Bf2+ Kd2 Nf5 Bh4 Bg3 Qg7 Bfg6 Bg5 f7 Bf6 Bh7 Qg5 B7g6 B8g7 f8N Ba6 Nd7 Bf8 Bh4 B6g7 Bf7 Bb5 Bf2 Bf1 Bh4+ Bbe2 Bg3
4q1br/1K3knN/1nQ3B1/2pRb2p/pp1P3P/R4b2/1Bb2npR/1BQ4r b - - 0 1 illegal: No proof kernel
1r4bK/k1p4B/r4BP1/N1R3b1/1QRpR1pQ/1pqPn2p/2br1Brn/8 b - - 0 1 illegal: No proof kernel
3NBK1R/2p2BB1/pQp1Pr1p/6Q1/r7/rbb3Q1/P2k2p1/R1nb1qnb b - - 0 1 legal: proof: g4 e5 h4 g5 d4 exd4 c4 Na6 c5 Nb8 c6 bxc6 Nc3 gxh4 Ne4 f6 g5 f5 Nf6+ Ke7 Ng4 fxg4 Kd2 Kf7 Ke1 Ke8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Ke4 f4 d5+ Kb3 g3 f5 d3 b5 d4 Kc4 h3 b6 g2 g6 h2 b7 d2 g7 Ke3 f6 d3 f7 Nd7 b8Q Nc5 Nf3 Nf6 g8B Nfe4 Ne5 Nb3 Qe1 Bb4 f8Q Ng5 Bb2 d1B Qf5 d2 Nf7 Nh3 Bg7 Qf8 Nd8 Bc3 Bf7 Ng1 Be8 Nc1 Qg5+ Qf4+ Kc5 Be6 Qb6 Rf8 Qeh4 Rf6 Qhg3+ Ke4 e3 Beb3 Bc4 Qf1 Bcf7 Kd3 e4+ Kc2 e5 h6 e6 Bg4 Rb1 d1R Ra1 Rd3 Rb1 Rdf3 Ra1 Ba5 Kd4 R3f4+ Ke5 Bd1 Rb1 Kd2 Ra1 Nh3 Rg1 h1B Rb1 Qf2 Re1 Qf1 Ra1 Ng1 Re3 Kc2 Rd3 Ra4 Rd4 Rf2 Rf4 Kd2 Kf6 Bc3+ Ke7 Rf3 Kf8 a6 Qbc5 Rb8 Qa7 Rb5 Qac5 Rba5 Rb4+ Rf4 Rb8 Ra3 Qb4 R5a4 Qb6 Bdc2 Nb7 Rc4 Bd7 Rd4 Ke7 Rb4 Rh8 Bd1 Nd8 Rd4 Kf8 Rda4 Qe5 Rf5 Be8 Rf6 Qeg5+
7q/1p4B1/5N1n/2b2k1p/p1NQN2p/qn1Bn2P/RnBrP1p1/3bK1Qr b - - 0 1 illegal: No proof kernel
5R1b/2N1p2K/1bqQPkr1/1RBp1p1b/1QPq1n2/N1pn4/pR5r/5Qb1 b - - 0 1 illegal: No proof kernel
3r4/qr2b2p/N1pB1R1k/Q1nR4/r5pn/p2P2pP/1Qp2N1R/K2Qbb2 b - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e6 f5 f6 Bg2 fxg5 f6 g4 Be4 Qe7 Bd3 Qd8 Bf5 exf5 b4 Kf7 e4 Kg6 h3 a5 f7 c6 e5 g3 e6 a3 b5 c3 b6 c2 e7 a4 e8R a2 b7 f4 Ba3 f3 Nc3 Qc7 Rh2 Na6 b8Q Ne7 Nb5 Nc5 Rd8 Ba6 Ne2 Nf5 Nc1 Qa7 Nd3 Kh6 Nc7 g5 Qb2 g4 Nf2 Be7 Rd5 Bf1 d3 Rhd8 Kd2 Nh4 Kc1 Rab8 Rb1 a1B Na6 Rb7 f8Q+ Kg6 Qe5 Bc3 Qfh8 Kh6 Bb4 Be1 Kb2 a3+ Ka1 Nd7 Bd6 Nc5 Ne4 f2 Qb2 Bg2 Qhc3 f1R Qa5 Rf4 Nf2 Ra4 Qf3 Bc3 Rf1 Be1 Qd1 Rb3 Nh1 Rb7 Rf3 Bf1 Nf2 Ng6 Rf4 Nh4 Rf6+
5b2/4pn2/1P2n1Bp/RKQp2Nb/B1pPp2p/1pQ5/qr3rNB/2Nk2r1 b - - 0 1 legal: proof: b4 b5 c4 bxc4 e4 g5 h4 gxh4 a4 a5 b5 f5 Ra2 fxe4 Rb2 Nc6 Rb3 Nb8 Rb4 axb4 g4 Kf7 f4 Kg6 d4 d5 Kd2 c5 a5 b3 Kc3 h6 g5 Kf5 g6 Rh7 g7 Na6 Qc2 Qb6 Na3 Nf6 g8B Bg7 Ne2 Ne8 Bf7 Kg4 Qb2 Kf3 f5 Ra7 f6 Bg4 Bg6 Bh5 f7 Nd6 f8N Nc7 a6 Ne6 Bf4 Ra8 a7 Qa6 Bh3 Nd8 Bd7 Ne6 b6 Rh8 Nh7 Rhf8 Rd1 Rf6 Qd2 Bf8 Ra1 Nf7 Ng5+ Kf2 Ra2 Kf1 Qb2 Ke1 Bh2 Rf1 Bb5 Rg1 Nc2+ Kd1 Ne1 Qa3 Ng2 Qa4 Qa3 Qa6 Kb2 c3+ Ka1 c4 Qc5 c2 Kb2 Qb7 Kc3 Qa6 Kb4 c1R Ra3 Rc2 Nc1 Rf2 Be8 Rd8 a8Q Qa7 Qb8 Qa6 Qg3 Ra8 Qc3 Qa7 Ra2 Qa6 Re2 Qa1 Ra2 Qb2 Ra1 Ra2 Bd7 Qb1 Bc6 Rab2 Ra5 Qa1 Ba4 Qa2 Kb5
1nrR4/4q3/3Nn1Bp/n4q2/rn1Pn1B1/1p3B1P/q2Rq1RK/1N2kN2 b - - 0 1 legal: proof: c4 c5 b4 a6 b5 axb5 d4 bxc4 Qd3 c3 Qd1 c4 Nf3 d5 Bg5 g6 Bf4 Bg7 Bh6 Be5 Be3 Bd6 Ng1 Bc5 dxc5 d4 Bc1 d3 Qb3 Bf5 Qb6 d2+ Kd1 Bd3 Qe6 fxe6 exd3 e5 Ke2 e4 f4 g5 f5 Qd5 Ba3 Kd8 Bb4 Ke8 Ba5 Qd6 Bc7 Qd8 Bf4 gxf4 Kf2 Kd7 a4 Kc6 g4 Kd5 Kg2 Kd4 a5 Ke3 h3 d1Q c6 b5 a6 e5 c7 c2 c8N c1Q d4 f3+ Kg3 b4 a7 f2 g5 h6 f6 c3 f7 c2 f8R Qa3 g6 c1N g7 Qe7 Re8 Nb3 Nb6 Qe2 Rh2 Na5 Bg2 f1Q Rh1 b3 Rd8 Nf6 g8B Qf5 Rd7 Qaa2 Bf7 Rc8 Kh2 Kf2 Rd6 e3 Bg6 e4 Nc4 Ke1 Rd7 Qef1 Rd5 e2 Nd6 e3 Bf3 Ne4 Bfh5 Kf2 Nf3 e1N Rg1 e2 Bg4 Nc2 Rg3 e1N Nfd2 Qe2 Nf1 Ng2 Rd3 Nf4 Rd2 Qb2 Ra2 Ne6 Nb7 Qa1 Rd8 Nb4 Rac2 Qa2 Nd6 Rc7 Rc3 Rc4 Rg3 Ke1+ Rg2 N4c6 Rd3 Ra4 Rd2 Nb4 Rf8 N8c6 Rd8 Rc8 a8B Nb8 Bb7 Nf2 Bbf3 Ne4 Kh1 N6c5 Kg1 Ne6 Kh2
R4R1n/5R2/1r1N4/Pk2B2K/r1n2N2/3pqn1n/2p2pPb/r1bNBB2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c3 e5 c4 b5 cxb5 exf4 Qc2 axb4 Qa4 Ra6 Qd1 Ra8 a4 c5 d3 c4 Kd2 c3+ Ke1 Bb7 Qb3 Bd5 Qa3 Bc4 dxc4 bxa3 Kf2 f5 Kf3 h5 e4 d5 c5 Kd7 e5 h3 b6 Kc6 e6 c2 e7 h2 e8R h4 b7 d4 Ra2 h3 Bd3 Qe7 Ne2 Rh6 Ra1 a2 Nd2 Nd7 b8B Nb6 Bd6 Nc4 Rf1 h1R Rb1 a1B Ng1 h2 Reb8 Bb2 Be2 d3 Kf2 f3 Kg3 f4+ Kg4 f2 Re8 f3 Nh3 Qe3 Ne4 Ne7 Be5 Ng6 Nc3 Nh8 Nf4 Bd6 Bd2 Bc1 Be1 Rg1 Rg8 h1N Rbb8 Ra6 Rge8 Rb6 a5 Rh4+ Kg5 Bc7 Nd1 Kb5 c6 Rg4+ Kh5 Bd6 B5c3 Bc7 Nh3 Bh2 c7 Rd4 c8N Re4 Be5 Rg4 B1c3 Rd4 Re1 f1N Rf8 Nf2 Ra8 Nfd2 Nf4 Nh3 Bf1 f2 Re2 Nf3 Be1 Ncd2 Rf7 Ra4 Rf8 Nc4 Rf7 Qd4 Re4 Qc5 Rd4 Rh1 Rd8 Qe3 Rdf8 Nd4 Bb4 Nd2 Nb2 Nc4 Be2 Nf3 Bbc3 Rd1 Be1 Bd2 Bf1 Rda1 Nd1 Bc1 Nd6+
1N1qn2R/K1b5/1nr2b1B/5rr1/1Rp1r2N/b1q3R1/P1P3qq/2B2BkN b - - 0 1 legal: proof: f4 a5 b4 axb4 e4 d6 e5 dxe5 g3 exf4 g4 f3 Nh3 h5 Ng1 f5 Qe2 f4 Qg2 Bf5 gxf5 Qd5 Qg3 Qd8 Qg4 hxg4 Kf2 Kd7 d4 Kc6 h4 Kd5 f6 Ke4 h5 b5 f7 e5 d5 c5 h6 g5 d6 g3+ Ke1 g4 Kd2 c4 h7 b3 Kc3 b4+ Kd2 g2 d7 f2 Ke2 f3+ Kd2 g3 Rh3 b2 Rh1 b3 Kc3 Nf6 Rh3 Ra6 Rh6 Rc6 Rg6 Ne8 Re6 Ba3 f8N Rg8 h8B Rg5 Nd2+ Ke3 Ng6 b1Q Be2 f1R Nh4 Kf2 Rd6 e4 Kd4 e3 Ng6 b2 Bd3 e2 Ne5 e1R Kd5 Re4 Ne2 g1B Rh6 g2 Rg6 Bh2 Bg7 g1B Bh6 Kg2 Ng3 Bd4 Rg8 f2 Nf3 Bc3 Nh4+ Kg1 Nh1 Bf4 Be3 Qe1 Bc1 b1Q Rh8 Qb2 Rb1 Qd2 Rg8 Qa1 Rb4 Bd4 Rg6 Qac3 Rg8 Qe3 Rg7 Qg3 Rg8 Qh2 Rh8 Qb6 d8R Nd7 Rc8 Qd8 Rg8 Rfe1 Bf1 R1e3 Rcb8 Rf3 Rh8 Bg3 Rb3 Rff5 R8b4 Qd2 Rf3 Qc3 Re3 Ra6 Rf3 Nb6+ Kc6 Bf4 Nd7 Bf6 Kb7 Bc7 Bh3 f1Q Nb8 Qfe2 Bf1 Qeg2 Rh3 Nc8 Rf3 Rc6 Rg3 Nb6 Ka7
Nr2qr1n/1p3r2/1n1R1P2/1b1B2pb/1qNbBN1k/1P2b3/8/RKBR3n b - - 0 1 legal: proof: h4 a5 e4 f5 c4 fxe4 b3 d5 cxd5 a4 Qc2 a3 Qb2 axb2 g4 Qd7 h5 Qe6 h6 gxh6 g5 Qe5 g6 Qd6 Na3 Qd8 d3 Be6 Be3 Ra7 Rh5 Bc8 Rg5 hxg5 Nc4 Ra6 a4 Bg4 Ne2 Nh6 Kd1 Nf5 Bg2 Bg7 Na3 Nh6 Kd2 Bc8 Rh1 Ra7 Bf1 Bf8 Ng1 Ng8 Ke1 Ra8 Kd1 b1B Kc1 e5 f4 h5 a5 c5 g7 Kf7 f5 c4 d6 c3 a6 c2 a7 h4 f6 Kg6 d4 Kh5 d7 h3 d5 h2 d6 Nh6 g8B Kh4 Bh3 Nf7 Bf5 Qe8 d8R Nd7 Bh3 Nb6 d7 Bc5 Kb2 c1B+ Ka1 Rb8 a8N Bd3 Nc2 Bd4+ Kb1 Bb5 Bf4 e3 Nb4 e4 Na2 e2 Nc3 e1R Nge2 e3 Na4 Rd1 Rf1 h1N Nb2 Rd3 Bh7 Rf8 Nc4 Nh8 Be6 Rd2 Be4 Rf7 Nc3 e2 B6d5 e1Q Ne2 Rc2 Be3 Qb4 Nf4 Rc3 Ne5 Rc6 Nc4 Rf8 Rg1 Re6 Rf1 Re7 Re1 Ref7 Rd1 Bcb2 Bc1 Be3 Re1 Bbd4 Rd1 Qee7 Re8 Qe5 d8R Bg4 Rd6 Bh5 Rc8 Qe8 Rc5 Bd7 Ra5 Bb5 Ra1
kBRb4/b4p1B/nNBn1P2/b1p5/R4nNP/4qr1R/nKn2nr1/6N1 b - - 0 1 illegal: No possible last move
1qB4b/r2P1p2/R1qB3r/q1R1nRp1/N3q1r1/K1P4N/N3qB2/n2kq3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 g5 dxe4 g6 c5 Be2 c4 Bf1 hxg6 Bh3 g5 Bf1 g4 f3 e5 Kf2 e3+ Kg2 e2 Ba3 e4 Bc1 Bf5 Qe1 Bg6 Qf2 Bf5 Qe3 Bg6 Qd3 e3 Qb3 Be4 fxe4 cxb3 a4 Ke7 d4 Kf6 h4 e1Q h5 Kg5 a5 Kf4 a6 b5 e5 g5 c3 g3 d5 b2 d6 b3 h6 b4 a7 Nc6 e6 Qa5 d7 Nd4 h7 Nc2 e7 Nf6 e8R Ng4 Na3 b1Q Re5 b2 Rc5 b3 Ba6 Bg7 Bc8 Ne5 Nh3+ Ke4 Rg1 Kd3 Rf1 Ke2 Rf5 Kd1 Ra2 e2 Be3 Bf6 Bf2 Na1 Nc2 Qd2 Nb4 e1Q Ra3 Qde2 Na2 Qc1 Ra4 b1Q Ra3 b2 Ra4 Re8 h8B Re6 Bg7 Qcc2 Bf8 Bh8 Bd6 Rh6 Ra3 Qbc1 Ra4 b1Q Ra3 Rb8 a8N Rb7 Nb6 Ra7 Na4 Qc1d2 Rb5 Qc4 Rc5 Qee4+ Kg1 Qe6 Kf1 Qb8 Rb3 Qdd5 Rb6 Qc6 Ra6 Qc1 Be3 g2+ Kf2 Kc2 Ke2 Qcb2 Ke1 g1R+ Ke2 Rg4 Ke1 Kd3 Kd1 Qe2+ Kc1 Qe7 Bf2 Qe6 Bb7 Qe1+ Kb2 Kd2 Ka3 Kd1 Bc8 Q6c4 Rf4 Qce2 Rf5
3r1BBK/1pnNN3/4n2R/Rqb1p3/qk3Pb1/P3r3/2pbr1B1/2NR3n b - - 0 1 legal: proof: c4 d5 cxd5 a5 h4 g5 e4 gxh4 d3 f5 Kd2 fxe4 Na3 a4 b4 axb3 Rb1 Ra6 Rb2 Ra8 Rc2 b2 Ke2 b1Q Be3 Qa1 Kd2 Qb2 Qa1 Qxa1 g4 Kd7 f4 Kd6 g5 h5 g6 e5 d4 c5 g7 c4 Nh3 c3+ Ke2 Nh6 g8B Na6 Bg2 Qa5 Rh2 Nf7 Nf2 h3 Nd3 h4 Nc1 Nc7 Bg1 e3 Kf3 e2 Ke4 e1B Nc4+ Ke7 Nb6 Kd6 Rb2 c2 Nd7 Ng5+ Kf5 Qb5 Kf6 Ra3 Rb1 Be7+ Kg7 Bd2 Rh1 Qa4 Rb5 h2 Ra5 h3 Bf2 Re3 Rd1 Rh4 Bg1 Rg4 Kh8 h1N Bf2 h2 Bh4 Nge6 Bf6 Qb4 Bg7 Qa4 Bf8 Nf2 Rh1 Re2 Rd1 Rg3 Rh1 Rge3 Rd1 Na6 Rh1 Qb2 Rd1 Kc7 d6+ Kd8 Nf6 h1R+ Bh6 Nec7 d7 Ne6 d5 Kc7 d8R Kb6 d6 Nf8 d7 Rg3 B8d5 Rge3 Kg8 Nc7 Re8 Rh4 d8N Qbb5 Nc6 Kc5 Kg7 Rg4+ Kh8 Nh1 Be6 Rg7 Bg8 Bg4 Rea8 Bd6 R8a6 Rd7 Ne7 Rd8 Nd7+ Kb4 Bg7 Bc5 Rh6 Nfe6 Bf8 Be1 Kh7 Bc3 Kh8 Bd2 a3+
B1r5/b2p2Nn/2pnN2p/k1R3R1/1b1nn2b/qr1PK2P/RB6/1B2N1r1 b - - 0 1 illegal: No possible last move, all moves rejected
1b1NR1N1/N1krn3/P1r1pPp1/4n1B1/1q3B2/rpnBKb2/pr1R4/5R2 b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 e4 f5 Qb3 fxe4 Qa3 bxa3 Ke2 Kd7 d4 b5 f4 c5 h4 e3 h5 g6 f5 e6 d6 b4 h6 b3 h7 g3 a5 a2 f6 c4 d5 c3 Na3 c2 Rh3 g2 Rh2 Qe7 Nb5 Nc6 Na7 Bb7 Nh3 Ne5 Nf2 g1R Rb1 Rg2 Ra1 Kd8 d7 Kc7 d8N Qb4 Bd2 Ne7 d6+ Kb8 d7 Kc7 Rd1 c1R Rh1 Rc6 Bc1 Rg8 h8R Rg7 Rd2 Rh7 Rg1 Bh6 Re8 Bf4 Kd1 Rg7 Bd3 e2+ Ke1 Rh7 Ng4 Rf2 Nh6 Rh2 Rg2 Rf7 Kf2 e1N Ng8 Nc2 Rd1 Ne3 Rf1 Nd1+ Ke2 Bg3 Bg5 Nc3+ Ke3 Rg7 Rd2 Rg2 Rdd1 Rb2 Rd2 Rc4 Bh4 Bf3 Bg5 Rc6 Bc4 Rb8 Bd3 Rb5 a6 Ra5 Nf7 Ra3 d8B+ Kd7 Bb6 Rh7 Bc5 Kc7 Bd4 Rh4 Bc5 Rd4 Nd8 Rd7 Bd6+ Kb6 Bb8 Nf7 Bh4 Bh2 Bf4 Bg3 Bh6 Bb8 Bg3 Ne5 Bg5 Kc7 B3f4
Nbbq4/3B4/2p1pbPp/1RnPk3/1R3p2/1p2BrR1/r1N3b1/Nn2K1B1 b - - 0 1 legal: proof: c4 a5 f4 f5 e4 fxe4 b4 axb4 h4 g5 f5 d5 cxd5 b5 h5 Ra6 h6 Rxh6 Qg4 Rh2 Qf4 gxf4 g4 Kd7 d4 Kd6 a4 e3 f6 b3 f7 b4 a5 c6 a6 b2 a7 e2 a8N b3 g5 h6 g6 Bd7 Nf3 Rf2 Ra4 Bc8 Rg1 Na6 Bh3 Nc5 Na3 b1B Rg3 Be4 Rb4 Nf6 Bd7 e6 Be3 Be7 f8B Rg8 Nh4 Bg2 Nc2 Rf3 Na1 Nfe4 Bg7 Nc3 Rb5 Bf1 Ng2 Bf6 Bg1 Nb1 Ne3 Be5 Nec2 Bg2 Rb4 Ke7 Bf8+ Kf6 d6 Rg7 d5 Re7 Be8 Ra7 d7 Bb8 Bg7+ Kf5 B7d4 Ra2 Bde3 Ke5 Rb5 Qg5 d8R Qe7 Rd7 Qd8 Rh7 Na3 Kd2 e1B+ Ke2 Bc3 Rhb7 Nb1 Bd7 Ke4 Kd1 Bf6 Ke1 Kf5 Rb4 Ke5 R7b5
RRrN2n1/4nBK1/q1rNp2n/pb1k4/1Bp4q/n3P3/bB1N1R1P/4b2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 d5 Qc2 dxc4 Qe4 g5 Qg2 gxf4 g5 Ba6 Qg3 Bc8 Qg4 hxg4 Kf2 Kd7 b4 Ke6 d4 c5 g6 a5 g7 f5 e3 g3+ Kf3 c3 b5 c2 b6 a3 b7 g2 Nd2 a2 Ba6 Nc6 b8R Rh6 Bb2 c1Q Ba3 Kd5 Rb4 Qc4 Rc1 a1N Rbb1 Nc2 Ne2 g1R Rb8 Be6 Bb2 Na3 Ng3 Re1 Bc8 Qa6 Rf1 Bf7 Rf2 Rh1 Nge4 Rd6 Kg2 f3+ Kg3 f4+ Kg4 Rh6 Kf5 Rg6 Rff1 f2 Nd6 f3 Bd7 Rh6 Be8 Rg6 Rc2 Re6 Rg1 f1N Rg2 Rh6 Rf2 Ng3+ Kg5 Be6 Bf7 Nf5 Rc1 Rf6 Rcf1 Nfh6 Kh5 Rf4 Kg6 Rf6+ Kh7 Ra7 Ra8 Rc7 Rb1 Rc8 Ba1 Ng4 Rbb8 N4h6 Bb2 Rg6 Rg2 f2 Kh8 f1B Rf2 Nf6 g8N Bb5 Ba1 Nhg4 Nh6 Ng8 Bc3 Bg7+ Kh7 Bf6 Bb2 Bh4 Kh8 Rf6 Kg7 Bg3 Bg6 Bh4 Nhf7 N4h6 Bh5 c4 Bg6 Bf5 Bh5 Bb1 Bg6 Qd7 Nd8 Ba2 Be8 Qh3 Bf7+ Re6 Ne8 Rf1 Rf6 Na7 Nb7 Be1 Rf2 Kc6 d5+ Kd7 d6 Kc6 d7 Kd5 d8B Rh1 Bc7 Nc6 Bd6 Qh4 Bh5 Rf6 Bb4 Rd6 Nd8 e6 Bg6 Nce7 Bf7 Rdc6 Nd6
Rq2NR2/BRbb1b2/6b1/B2p2qP/r1rN1p1p/p1qP4/k2nK2n/1B1N4 b - - 0 1 illegal: No proof kernel
r2qr3/1RN4n/P1b1Bnb1/3n1rp1/8/Q1BP3R/2RRn1R1/K3nqk1 b - - 0 1 legal: proof: f4 e5 b4 exf4 b5 d5 b6 h5 Bb2 d4 Ba3 d3 cxd3 axb6 Bb2 b5 Bc1 b4 a4 c5 g4 hxg4 Ra3 c4 Rb3 c3 Na3 bxa3 Rb1 c2 Ra1 Bc5 Ra2 Bb4 Ra1 Bc3 dxc3 Qd7 Bh3 Qc7 Bf1 Qd8 Kd2 Ke7 e4 Ke6 h4 Ke5 c4 Kd4 e5 b5 c5 g5 e6 f5 e7 g3 e8R b4 c6 a2 h5 f3 h6 b3 a5 b2 h7 b1N+ Ke1 f2+ Ke2 g2 a6 f4 c7 Bf5 c8R Nf6 Rh5 Nbd7 Nh3 g1Q Re7 Nf8 Qe1 Nc3+ Kd2 f3 Bb2 c1N Kc2 Bg6 Rb7 Ne2 Rd1 Ke3 Rd2 Ncd5 Qc1 a1N+ Kb1 Nc2 Bc3 Ne1 Qa3 Rg8 h8R N8h7 Rc6 Re8 Ka1 Qh1 Bg2 f1B Nf4 Kf2 Ne6 Kg1 Bh3 f2 Nc7 Bg2 Be6 f1R Rh3 Rf5 Rg3 Nf8 Rh2 N8h7 Rgh3 Be4 Be5 Qf3 Rcc2 Qf1 Rf2 Ndf4 Rfh2 Bc6 Bc3 N4d5 Rg2+
1k1K1b1B/Nb5b/4p1Bp/2B1qn1B/n1n3nB/7n/PP4QR/1q2Nq2 b - - 0 1 illegal: No proof kernel
KBb1b1B1/6q1/bkNp1pN1/1Rr1p3/1qnB1P2/B3P3/BQ6/q1r2b2 b - - 0 1 legal: proof: b4 b5 c4 a5 a4 g5 h4 gxh4 d4 c5 Ra3 cxd4 c5 Nc6 Ra2 Ne5 Rb2 Nc4 Rb3 bxa4 b5 Nb6 cxb6 a3 Rb4 Bh6 Bb2 Bc1 Bxc1 axb4 Kd2 h5 Kd3 e5 Kc4 h3 Kc5 h2 g4 b3 f4 d3 g5 h4 b7 a2 b8B a1Q e3 d6+ Kc6 d2 b6 b2 b7 h3 g6 f6 g7 Qd7+ Kb6 Kd8 Qh5 d1B Qg5 Ba4 Be2 Ne7 g8B Nc6 Bec4 Na5 Ba2 Qg7 Qg2 Be8 Na3 b1Q+ Nb5 Qb4 Ba7 Nc4+ Ka6 Rh5 Nd4 Kc7 Ngf3 Rb8 Rf1 h1B Nc6 h2 Qb2 Bg2 Bd4 h1B Ka7 Rh3 Rd1 Bf1 Nh4 Bhg2 Rd2 Rh1 Ng6 Bd3 Rc2 Re1 Rc3 Bgf1 Ra3 Bde2 Bd2 Rc1 Ra5 Nb6 B2c3 Ba6 Bc5 Nc4 B3d4 Qb3 Ba3 Qb4 Bc3 Bg4 Bd4 Rc8 Nb8 Bf5 Ka8 Be6 Bc3 Kb6 Bd4+ Rc5 Nc6 Bg4 b8B Bgc8 Rb5+
Rq3bRb/1p3Rp1/2P1r1p1/QNB5/1K1N2n1/1b3RnP/R1p1r1r1/1k6 b - - 0 1 illegal: Other
3R3b/r1bR2RR/1Nr1q1R1/1b3Qn1/B2bP2P/2b1q1k1/r5Nq/2nK1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 e4 Ke7 c4 Kd6 b4 Ke5 h4 Kf4 b6 f5 b5 g5 b7 d5 c5 a5 b6 g2 c6 d3 c7 d4 Ra4 g3 Qe2 d2+ Kd1 g4 Rh2 Bg7 Ra3 a4 Qe1 Bd7 c8R Qe7 Qe2 Nh6 Rc5 Na6 b8R Nb4 b7 Nf7 Rh3 Na2 Ra5 Ng5 Rb3 a3 Rd3 Bb5 Rd8 Rh7 b8R Nc1 Rb3 a2 Rd6 a1B Ra2 Qe6 Rb7 Bc3 Qd3 Bh8 Nf3 g1Q Rd5 g2 Qe2 g3 Rc2 Qh2 Qf2 g1B Qe2 g2 Rc5 Ra2 Rb6 Rha7 Qf2 Kg4 Rc8 f4 Ne1 f3 Bc4 Kf4 Qf1 f2 Rd8 Kg4 Na3 Kf4 Qe2 f1N Rg3 Be3 Qh5 g1B Ra6 Bef2 Rd3 Bg3 Rbb2 Be3 Bb3 Bef2 Qf7+ Kg4 Qh7 Bc7 Nc4 Be3 Nb6 Kg3 Nf3 Bg1 Ba4 Be3 Qf5 Bf2 Rb3 Be3 Rcb2 Bg1 Kc2 d1R+ Rd2 Bf2 Ne1 Be3 Ng2 d3+ Kb1 Re1 Rd1 d2 Kc2 Bed4 Rb4 Bce5 Rc4 Re2 Rc7 Rf2 Rg7 Bc7 Qh7 Rf6 Qf5 Qc4 Rdd7 Rc6 Rh7 Qe6 Rdg7 Rb7 Ra8 Ra7 Rd8 Qg1 Rdd7 Qe3 Rd8 Nh2 Rg1 Nf1 Kd1 Kh2 Ne1 Nf3 Rgd7 Ng3 Kc2 d1Q+ Kb1+ Qdd2 Rc2 Nf1 Rgg7 Qg2 Rd2 Ra1+ Kc2 Ra2+ Kd1 Qgf2 Qf4+ Kh3 Qe5 Qg1 Rdg2 Qh2 R2g6 Ng5 Qf5+ Kg3 Ng2
q2Q3R/r1r2bKP/1q1RBrb1/B1k3R1/P7/R2r2R1/2q2bnr/1nN4b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Nc3 exf6 Ne4 f5 Ng3 f4 Ba3 fxg3 Bb2 Ra4 Bc1 Ra8 e4 Ke7 Ke2 Kd6 Kf3 f5 Kf4 g5+ Ke3 b5 Kd4 c5+ Ke3 f4+ Kd3 g4 h4 f3 a4 f2 h5 c4+ Kd4 b3 d3 b2 h6 b1B Rh4 b4 Ra3 b3 Qc2 c3 Nh3 g1R Qd2 g2 Bb2 c2 Qg5 c1Q Nf4 g3 Ng6 Be6 Be2 f1R Nf4 Ra7 Bd1 Nd7 Rh5 Bf7 Rh3 Ne5 Bc3 b2 Bb3 Nc4 Ne2 Ne7 Ba5 Qc2 Nc1 Qa8 h7 Ne3 Rh5 Rf6 Qh4 Rh1 Rg5 g1Q e5+ Kd7 d6 Kc6 d7 g2 d8R Rh2 e6 N7d5 Ke5 Nc3 d4 Bc5 Rd5 Rc8 e7 Rcc7 e8R Qgf2 Ba2 g1R Rg3 Rd1 Rh8 Rd3 Bc4 Bb6 Rb5 Bc5 Be6 Ng2 Qg5 Bb6 Qg8 Ba2 Qd8 b1B Rd5 Bg6 Rb5 Bc4 Rd5 Bba2 Rb5 Nb1 d5+ Kb7 d6 Kc6 d7 Bd5 Qg8 Qg1 d8R Bf2 Rd7 Bac4 Qd8 Bde4 Rbd5 Ba2 R5d6+ Kc5 Rg7 Bad5 Rgg8 Bf7 R8g5 Beg6 Rf3 Qe1+ Re3 Qb4 Rh3 Qb6 Rhg3 Rff3 Rf5 Bb7 Kf6+ Bd5 Kg7 Rf4 Rh5 Rf6 Rhg5 Nh4 R5g4 Bh1 Rb4 Ng2 Rbg4 Rd4 Rg5+ Rd5 R5g4 Rd3 Rg5+
5r1b/BP1n2q1/Qq4br/b1bPB3/2qB1nK1/BBqN3r/6k1/4n1RR b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 d5 e4 dxc4 b5 f5 Nc3 fxe4 Na2 b6 Nb4 axb4 a5 Bb7 axb6 Bc8 Ke2 Kd7 f4 Kd6 d4 Kd5 h4 c5 h5 g5 b7 e5 f5 c3 f6 c2 b6 c4 f7 b3 h6 e3 h7 Ke4 d5 g3 Rh2 c3 Rb1 g4 Nf3 g2 Rh1 g1B Rh5 g3 Rf5 b2 Nh2 g2 Nf3 Nf6 Rh5 Bc5 f8B Nbd7 Rh6 Nh5 b8B Nf4+ Ke1 e2 b7 Bgd4 Rc6 g1Q Rf6 Qb6 Rd6 Qg7 Be3 c1Q Kf2 e1N Nh4 c2 Ra1 b1R Ng2 Rb3 Bc4 Qd2+ Qe2 c1Q Rg6 Qdc3 Kg3 Ra6 Bfd6 Rf8 h8B Rba3 Ba2 Qc4 Rg4 Q1c3 Ba7 Rb3 Kh4 Rba3 Qd3+ Kf3 Bb3 e4 Rg5 Bf6 Bd4+ e3 B4e5 Kf2 Kg4 e2 Qg6 Kf1 Rh5 Kg1 Ne3 Kf2 Nd1+ Kg2 Rb1 Nf3 Rh4 e1B Nf2 Bd2 Ra1 Ne1 Rh1 Qe7 Qc2 Qe3 Bc7 Ned3 Bb2 Qbd6 Ba4 Nb6+ Bd7 Bdb4 Raf1 Ne1 Qg6 Ba5 Bf5 Qed4 Bd8 Rh3 Bc7 Qdc3 Ba3 Bd7 Bg7 Be8 Bc2 Nd7 Bb3 Be5 Bcb8 Qc7 Qb6 Qcd8 Qb5 Rah6 Nd3 Bg6 Qa6 Qb6 Bc7 Bed6 Bd4 Be5 Bd6 Bh8 B6e5 Qg7 Rfg1#
1Q5r/3RbqPb/Np4Rk/1Bq2R1N/n1b5/2R2rbr/n4P1R/n5Kb b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 e4 g5 c4 gxh4 cxd5 f5 Bb2 fxe4 Ba3 bxa3 g4 Kf7 d4 Kg6 a5 h5 d6 c5 d7 e5 d5 e3 g5 e4 d6 a2 a6 b6 a7 c4 Qd5 h3 Qa5 e2 Nd2 h2 Qa4 c3 Qa5 c2 Qc3 c1B Qc5 h4 Bh3 Qf6 d8R Ba6 d7 Qf7 Nb1 Bc4 Qc7 Nf6 Re8 Na6 d8R Bf4 Rd5 Bg3 Ree5 Nc5 Rd7 Be7 Rd8 Na4 Rd7 Raf8 a8R Nd5 Nd2 Nb4 Bf1 h3 Rc1 a1N Rc3 Na2 Nb3 Kh7 g6+ Kh6 Kd2 e1R Ne2 Rb1 Nc5 Rb3 Ke1 e3 Nf4 e2 Nh5 Ra3 Rg1 h1B g7 h2 Rf5 Be4 Qb8 h1B Ra5 Bed3 Na6 Bb1 Rg2 Rb3 Rg5 Bh7 Rh2 Ra3 Raf5 Rb3 Kd2 Ra3 Ke3 e1Q+ Be2 Qg1 Bd3 Rb3 Ke2 Qc1 Rg4 Qe3+ Kf1 Qc5 Kg1 Qfd5 Rfg5 Rf3 Rf5 Qf7 Rgg5 Rb1+ Bf1 Rd1 Rg4 Rd4 Rgg5 Rh4 Rg4 Rh3 Be2 Bb3 Bb5 Bc4 Rg6+
K3Rbq1/2N4q/kNn1Pn2/r1rN2P1/bb6/N5Qp/2bqB2B/1n2N1r1 b - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 b4 exf4 Ra3 b5 axb5 cxd4 c4 Qa5 Rb3 Qd8 Rc3 dxc3 Kf2 Qg5 Kf3 Kd8 Ke4 Kc7 g4 Kb6 e3 h5 Bh3 d5+ Kd4 f5 e4 a5 e5 c2 Bg2 f3 Ne2 a4 Qg1 a3 Bf4 c1Q Bf1 f2 Nec3 a2 Na3 a1B c5+ Ka7 c6 Bd7 c7 Nf6 Bd3 f1N c8N+ Kb7 b6 Ba4 b5 Ra5 Bg3 f4 Ne7 f3 Kc5 d4 Rh3 f2 Be2 d3 Bf4 d2 Re3 Ka8 b7+ Ka7 Qh2 Nc6 b8N d1R Na6 Nd2 Nb4 Qg8 Nbc2 Rg1 Ne1 Nb1 Kd6 Qd2+ Kc7 Rh6 Re4 Rg6 Kc8 Rg5 b6+ Ka8 b7+ Ka7 Ncb5+ Ka6 Kc7 Bc3 Bg3 Rf5 g5 Bb4 Kc8 h3 Qg2 h2 b8N+ Kb6 Nd7+ Ka6 Nb6 h1Q Kc7 Qh3 Bh2 h4 Qg4 Qhd3 Qg3 h3 Re3 Qe4 Kc8 Qh4 Kc7 Qhh7 Kc8 Na7+ Kb8 Nc6+ Ka8 Bc2 Rd3 Ba4 e6 Rc5 Rd8 Bc2 Ned5 Ba4 Re8 f1B Bg4 Bd3 Be2 Bdc2 Nbc7#
3K4/bB2N3/2Bp1BQb/B2rPB1n/nbnn3r/4q2k/P5R1/N1qq2q1 b - - 0 1 legal: proof: d4 a5 g4 c5 e4 cxd4 b4 axb4 f3 e5 g5 b6 g6 hxg6 Na3 g5 Rb1 g4 Rb3 Ba6 Rc3 Qf6 Rc4 d3 Rd4 exd4 e5 Qd8 Bf4 Bb7 Bc1 Be4 fxe4 Be7 Qf3 Bd6 Qd1 Bf8 Kd2 Ke7 h4 Ke6 c4 f5 c5 g5 c6 b5 h5 b3 h6 d6 c7 b2 h7 b1N+ Ke1 d2+ Ke2 f4 Kd3 g3 Qf3 d1Q+ Bd2 b4 Kc4 d3 Kb5 b3 Kb6 g2 Qe2 b2 Ba5 f3 Qe3 d2 Ne2 g1B Bg2 g4 Qc5 f2 Qd4 f1Q Qf2 g3 Nc1 Qe8 Bb4 Nc6 Rh3 Nd4 Nd3 Bh6 Qf4 Ra5 Rh2 Nc3 Nc2 b1N Na1 Nf6 Qg5 Na3 Qg6 Rd5 Ba5 Qc1 Nb4 d1Q Nc6 Na4+ Kb7 Bge3 Ne7 Nc4 Bf3 Qg1 Rg2 Bd2 c8B+ Qd7+ Ka8 Bb4 Kb8 Bf8 Bb7 Qe8+ Kc7 Bh6 Be2 Nc5 Bd3 Na4 Qg7 Nh5 Qg4+ Kf7 e6+ Kf6 Qg6+ Ke5 Bb1 Kf4 Bc2 Qb5 e5 Qb6+ Kd7 Qge3 Bf5 Qa7 Re2 g2 Kc7 g1B Rg2 Bf8 Kd8 Bh6+ Ng8 Kf3 e7 Bf2 e8B Kf4 Ne7 Kf3 Qf6 Bg1 Rb2 Kg3 Qg6+ Kh4 Rg2 Qc5 Bb1 Kh3 Bd3 Rf8 h8B Rf4 Bg7 Rh4 Bf5+ Rg4 Bbc8 Qec3 Be4 Nb5 Ba6 Rh4 Bf6 Qce1 Nc8 Bd4 Bb7 Qg1 Bec6 Bde3 Qg7 Qcd4 Bh7 Qdc3 Bb1 Ba7 Qg6 Q3e3 Ne7 Nd4 Bf5+
q4R1N/4B1r1/3R4/n1PPN2q/q1Nk1Nnq/1qn2bQ1/1pqrN1r1/5K2 b - - 0 1 legal: proof: h4 a5 b4 axb4 d4 c5 h5 cxd4 e3 d3 h6 gxh6 Qf3 h5 Qd1 h4 Nc3 d5 Rb1 f5 Ra1 d4 Nb1 Bg7 Be2 d2+ Kf1 d3 Bf3 Bf6 Be4 Bd4 exd4 fxe4 a4 Kd7 g4 Kd6 f4 Kd5 a5 e5 a6 h5 a7 b5 f5 e3 g5 e2+ Kf2 e1Q+ Kg2 h3+ Kf3 h2 Kg2 e4 g6 b3 c3 h4 f6 b2 f7 e3 f8N e2 g7 h3+ Kf3 b4 Ra3 b3 Ra4 Bb7 Qc2 d1N Qd2 Qc8 Ne6 Nc6 Ra2 Na5 Qc2 d2 Na3 b1Q Qd3 Nh6 g8N Ng4 Nc4 Rh7 Ba3 Rg7 Be7 Qh4 Ne5 e1R Nh6 Re2 Nhf7 Rg2 Nh8 b2 Qg6 Qg8 Ne2 Qc2 Rf1 Rd8 a8N h1Q Ra1 h2 Rc1 Ndf2 Rcd1 Ne4 Qg5 Qe8 Qf4 Qea4 Qg3 Nh6 Ke3 Qab3 Rf8 Ng4+ Kf3 Qh5 Nc6 Kc4 Nb6+ Kd3 c4 Nc3 c5 Rd5 Re1 d1Q Nc4 Qa1 Rf1 Qaa4 Rf2 Qha1 Rd8 h1Q Rd6 Q1h4 Rf1 Rg1 Rf2 Rd1 Rf1 Rdg5 Kg2+ Ke4 Rf8 Rd2 N6e5 Q1a3 Nf3 Kd3 Kf1 Be4 Nfg1+ Bf3 d5 Qaa2 N6f4+ Ke4 Nc1 Kd4 Ncd3 Re5 Qg2 Ree2 Qg3 Rg2 Nde5 Qc6 Rg8 Qaa4 Rf8 Qa8 Nge2+
RqQ2n1K/N4R2/1q1Bb2N/1bN1N3/2P2p2/n2pk3/3n1P1b/rN1r1n1n b - - 0 1 illegal: Other
2B1Q3/5qr1/1Br1b3/N3p1Np/kNPRq3/2r1n1b1/n1Nnr1rP/4N2K b - - 0 1 legal: proof: e4 b5 Ke2 d5 f4 dxe4 a4 g5 b4 gxf4 Nc3 f3+ Ke3 c5 axb5 cxb4 Nb1 f2 Ra6 Qd7 Rf6 Qd8 Rf3 exf3 d4 Kd7 g4 h5 g5 a5 g6 f5 g7 f4+ Ke4 b3 c3 a4 b6 Kc6 b7 b2 Bc4 f1R Na3 b1R Be2 f2 Kf3 Rh7 Kg2 f3+ Kg3 Be6 Ba6 Qd5 Nc2 a3 Bh6 a2 Ne1 a1R Qd3 Rb2 Nh3 Raa2 Qe2 Qe4 Be3 Nh6 g8N Rg7+ Ng5 Ng4 Nh6 Rb3 Nf5 Rg1+ Kh3 f1N c4 Rc3 Bf2 Nd2 Ne3 Kb6 d5 Ka5 d6 Ka4 d7 Nc6 d8N Rg2 b8N Nb4 Bc8 Ra6 Nb7 Rc6 N3c2 Rb2 Na6 Na2 Be3 f2 Nab4 f1Q Na5 Qf7 Rf1 Qfg6 Rf3 Qf7 Bb6 Ne3+ Rf5 Bd5 Rf4 e5 Qg4 Be7 Qe6 Bc5 Qe8 Be7 Nh7 Bh4 Ng5 Bg3 Rf3 Nf5 Rd3 Be6 Rd4 Re2 Ngf3 Ree3 Kg2 Re2+ Kh1 Ne3 Bb7 Rg2 Ng5 Nb3 Na1 Rbe2 Bc8 Nd2 Nac2
2r2N2/2n2B1r/1nqbRP2/3rRKR1/bPnQ1BR1/nnR1p3/3k1p1r/8 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 f5 f4 g5 e4 gxh4 Nd2 fxe4 Ndf3 b5 axb5 exf3 Kf2 Kf7 b4 Kg6 c4 Kf5 g4+ Ke4 f5 e5 g5 d5 c5 a5 g6 h5 f6 h3 Kg3 a4 c6 d3 g7 f2 b6 a3 b7 h2 c7 d4 Nf3 a2 Bh6 d2 Ba6 h4+ Kg2 h3+ Kg3 d3 Nh4 Qe8 Qh5 d1N Rc1 a1N Rc5 d2 Rc2 Ne3 Rc3 d1N Qg5 Qc6 Nf5 Nc4 Kg4 Nb3 Qd2 Nd7 b8R Ndb2 Bb7 Rh7 Rhc1 h1R Ra1 h2 Ne7 Rd1 Rc2 h1R Rc3 Rh2 Ra6 Na3 Bf4 Nbc4 Ng6 Ne7 g8R Nd5 Rg3 Bd6 Nf8 N7b6+ Kg5 Bg4 c8R Bf3 Rg4 Nc7 Kg6 Be2 Qd4+ Kf3 Re8 e4 Rbc8 e3 Re5 Rd3 Kg5 Bd1 Kf5 Ke2 R8g5 Rb8 Ba8 Kd2 Bb7 Qa4 Bd5 Qc6 Bf7 Ra8 Rce8 Rc8 Raa5 Bc2 Rac5 Bd1 Qa1 Rd5 Re6 Nca5 Rc3 N5c4 Ng6 Nc1 Nf8 Ba4 Qb1 Nb3 Qd3+ Ke1 Qe4 Kd2 Qd4+
1n3rq1/2N3n1/2rQ4/k1Nq2P1/N1RP1NN1/n1RB3r/K2p1b1p/n2br3 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 exf4 h4 gxh4 d3 d5 Bd2 dxc4 Kf2 c3 Ra6 cxd2 Ra4 Ke7 Ra1 Ke8 b4 Kd7 g4 a5 e4 c5 Ke2 Kc7 g5 Kb6 e5 f5 e6 h5 e7 c4 e8N f3+ Ke3 a4 Nc3 h3 Ne4 h4 Nf2 f4+ Ke4 h2 Ra3 c3 Ra2 a3 Qc1 h3 Nc7 c2 Qa1 c1R Qd4+ Bc5 Ng4 f2 Rc2 a2 Rc4 a1N Ne2 f3 Nf4 Ne7 Rc3 Nf5 Qd6+ Nc6 Kd5 Ng7 Be2 f1R Kc4 Bf2 d4 Rfe1 Bd3 Ba6 Rf1 h1Q Rg1 h2 Rf1 Nc2 Kb3 Na1+ Ka2 Rh3 Rc4 Rc8 Rg1 Qg8 Rg3 Kb7 b6 Rf8 b5 Nb8 Qf6 Re6 Qh6 Rc6 Qd6 Re1 Nce6 Ka8 b7+ Ka7 Nc5 Kb6 Na4+ Ka5 b6 Be3 Qc7 f2 Qd6 Qhd5 Rf3 f1N Rg3 Nd7 b8N Bf2 b7 Ne3 Rf3 Bb5 Na6 Nec2 b8N Na3 N6c5 Ba6 Re3 Bb7 Nba6 Nb8 Nc7 Bc8 Ne5 Bg4 Rg3 Bd1 Ng4 Re7 Bf1 Re2 Rc3 Re1 Bd3
3b2R1/2nB1qBK/q1QB4/2N1p1pP/1Br4q/b1bn1P2/k1q4b/5NBr b - - 0 1 legal: proof: a4 d5 e4 f5 c4 dxc4 b4 fxe4 Ra3 b5 Rg3 bxa4 Rg6 Bg4 f4 Bf3 gxf3 h5 Rg4 hxg4 Ke2 Kd7 Ke3 Kd6 h4 Kd5 d4 c5 b5 e5 b6 a5 f5 g5 f6 c3 b7 g3 f7 a3 Be2 a2 Qf1 a1Q Nh3 g2 Nf2 g1B Na3 c4 Nc2 a4 Na3 c2 Qd1 c3 Rh2 Qc7 Bd3 Nh6 Bb5 Ng4+ Ke2 e3 Kd3 e2 Nc4 e1Q Bd7 a3 Be3 c1B Ne4 a2 Qa4 c2 Nc5 Be7 f8B Bd8 Nd2 Ba3 Nf1 c1Q Bg7 Na6 b8B Qb4 Rh1 Bh2 Bg1 Qcb2 Qc2 Nf2+ Ke3 Qa7 Bd6 Rc8 Qa4 Kc4 d5 Qbb1 Qc6 Nd3 Ke4 Qc2 Kf5 Nc7 Kg6 Kc3 Be3 Kb2 Bg1 Rf8 Kh7 Rf4 Be7 Rc4 d6 Qa6 h5 Qab1 Bef8 a1B Be7 Qa2 Bef8 Bg3 Rh4 Qba4 Rf4 Bh2 Be7 Qa2b3 Rf8 Ka2 Rg8 Bc3 Qb6 Rh4 Ne6 Nd5 Qc5 Bda5 Bc6 Bg3 d7 Rh1 d8B Bh2 Bc7 Qh4 Bd7 Qbc4 Bb8 Bd8 Qb6 Qcf4 Bb4 Rc4 B8d6 Nc7 Nc5 Qf7 Qc6
3b1n1n/4q1kr/1N3pPq/1nr3B1/R1RN2KP/rn2r3/2p4Q/R3Rr1R b - - 0 1 legal: proof: f4 d5 e4 a5 g4 g5 d4 h6 b4 axb4 c4 dxc4 d5 Be6 d6 Bd5 exd5 gxf4 g5 h5 Bh3 Qc8 Be6 Qd8 Bg4 hxg4 Kf2 c5 a4 e5 h4 b5 a5 f6 a6 Kf7 g6+ Kg7 d7 e4 a7 e3+ Ke2 c3 d6 c4 Qd4 b3 Qd1 f3+ Kf1 b2 Qc2 f2 Ke2 f1R Ra5 b4 Rd5 b3 Rh2 g3 Rd4 g2 Rh1 Be7 Nf3 g1R Qe4 c2 Qf5 c3 Qe4 Nh6 Rd3 Rh7 Rd1 Rg5 Rd3 Rc5 Rd1 Nf7 Qe5 Nh8 Na3 b1N Qh2 b2 Rd4 Nd2 Ra4 b1N Nc4 Na3 Nb6 Nb3 Nd4 Nb5 Rc4 Qc7 d8R Nd7 Re8 Nf8 d7 Bd8 Bd2 c1Q Re4 Rb8 a8R c2 Ra1 Ra8 Rg4 Ra3 Ra4 Re1+ Kf3 e2 Bg5 Rg1 Re4 Rf1+ Kg4 e1R Re3 Re2 Rc3 Re3 Rcc4 Be7 d8R Qd6 Re8 Bd8 Re6 Qe7 Bf4 Rd3 Re1 Qd2 Bc7 Qh6 Bf4 Re3 Bg5
5QnN/kb6/1P2NN1p/1n4pq/K1N1q1R1/P3qqnq/2B4r/r3n1NR b - - 0 1 illegal: No possible last move, all moves rejected
qq2Nnqn/6R1/pqb5/PNp1N2K/N1k5/2r2QNB/1Br1qPrr/8 b - - 0 1 legal: proof: e4 b5 c4 bxc4 g3 f5 d3 cxd3 Qf3 fxe4 Qd1 e6 a4 Bd6 b4 Bf4 gxf4 h6 Ra2 Na6 Rc2 Nb8 Rc5 h5 Rg5 Ne7 Rg3 Ng8 Rg4 hxg4 h4 Kf7 h5 g5 h6 c5 f5 d5 f6 g3 b5 e5 h7 Ke6 f7 g2 b6 e3 b7 g4 Rh3 e4 Qd2 g3 Be2 d4 f8N+ Kd5 Kd1 Bd7 Qc2 d2 Bg4 Bc6 Ke2 d1R Nd2 Ne7 Nd7 Qb6 Nf1 Rd2+ Ke1 d3 Rh6 e2 Bh5 Ng6 Qd1 Rc2 Ba3 Kc4 Nf6 Nd7 b8N Ndf8 Nf3 g1Q Nbd7 g2 Bg4 a6 a5 Qh2 Bh3 g1Q Bb2 Qhb8 Rh5 Rc3 Kd2 e1R Rg5 Qh1 Qe2 Rec1 Ke3 R1c2 Ne8 Ra7 Qd1 d2+ Ke2 e3 Nd4 Qd5 Ng3 Qg8 Nb5 Rc7 Qh1 Rc8 Qf3 Rd8 Kf1 d1Q+ Kg2 e2 Kh2 e1Q Rg4+ Nf4 Rg7 N4g6 Kg2 Qa8 Kh2 Qee6 Kg2 Qbb8 Nb6+ Kb3 Kh2 Qde2 Na4 Kc4 Kg2 Qed6 Kh2 Qb6 Kg2 Qdb8 Kh2 Qd5 Kg2 Rg8 h8N Rd6 Nf7 Nh8 Bg4 Rf6 Kh3 Re6 Bf5 Rh6+ Kg4 Rh2 Kg5 Qde6 Bh3 Qec8 Kh5 Qce6 Rh7 Rg6 Rg7 Rg4 Nd8 Qg8 Nf7 Rg6 Nf1 Rg1 Ng3 Rgg2 Ne5+
2q3BK/1R2r1R1/ppb1Nr2/1Pq1R3/2bRrkb1/1PnR2bQ/r7/2q4N b - - 0 1 legal: proof: d4 e5 f4 exf4 h4 g5 c4 gxh4 Bd2 c5 Bc3 cxd4 a3 Na6 b3 Nb4 axb4 dxc3 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 d5 g4 f5 e4 d4 c5 c2 c6 c1Q g5 b6 b5 d3 c7 d2 g6 f3 g7 h3 Ra5 f4 Ra4 f2 Bd3 f1R Qe1 d1Q+ Ne2 h2 Ra5 f3 Ra6 f2 Ra4 Ne7 g8R Nd5 Bc4 Bd6 Rg7 Re8 Nd2 Re7 Kh6 Bg4 c8R Qdc2 Rb8 Nc3 Ng3 Kf4 e5 Qc8 e6 a6 Rg1 h1B Rb7 Bc6 Nh1 Qf5 Rg3 Qc5 Qe2 Re1 Re3 f1B Rd3 Ra7 Qg2 Re4 Bd5 Rf7 e7 Rf6+ Rg6 Be5 Kg7 h5 e8R h4 Rad4 h3 Bg8 h2 Qh3 Bfe2 Nf3 Bb8 Re3 Bc4 Ng5 Bc7 Re5 Bd6 Rf7 Re7 Kh8 Bb8 Rgg7 Bc7 Ng3 h1R Red3 Rh2 Nh1 Bd6 Rh7 Ra2 Rhg7 Re6 Rd7 Re7 Rb7 Bb8 Re6 Kf5 Qh2 Bf4 Qh3 Bg3 Re5+ Kf4 Ne6+
b1q2nq1/1B3bp1/nr1pr2B/q2B3p/4k3/1BR1Bb1P/PQ3K1N/R3r3 b - - 0 1 illegal: No possible last move, all moves rejected
2N3N1/N3bP2/r3r3/1KRN4/Nn1pP2r/1pqp1Q1n/Br3Rrb/b2k4 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h6 Qd3 b6 Be3 Bb7 Nb1 Be4 Bg5 f4 Qd1 Bf5 gxf5 hxg5 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 a4 Ke3 h5 d5+ Kb5 f2 c4 b3 h6 b2 c5 d3 c6 g4 a5 g5 h7 g3 a6 g4 c7 f3 c8N g2 f6 g3 f7 Qf6 a7 Na6 Qb3 Ne7 Rh6 Nb4 Qa3 Qc3 Rd6 Ng6 Qa2 Nf4 Ka4 b5+ Ka5 Be7 Kb6 Nh3 Na3 Kd2 Qb3 b1R e4 Rb2 Ne2 g1B Rc1 g2 Nf4 Bh2 Rf6 g1B Be2 Re8 h8N f1R+ Ka5 f2 Nhg6 Rg8 Bg4 Rh8 Be6 Rh4 Rc2+ Kd1 Kb6 Bf8 Nge7 Re1 Rf5 Re2 Ng8 Be7 Ka5 d4 Rc5 f1R Nd5 Rf6 Qa2 Rg2 Rf2 Bf4 Qa1+ Bc1 Qa2 Rb8 a8N Bh2 Nab6 Rfh6 Na4 Ra8+ Na7 Rhg6 Nc4 Bd2 Ncb6 Bc1 Bd7 Re6 Nc8 Rb3 Be8 Nc6+ Kb6 b4 Nb5 Ra5 Nba7 Bb2 Ngf6 Qe1 Ng8 Ba1 Qb2 Qc3 Qe2+ Kc1 Qf3 Ra6+ Kb5 Rb2 Nf4 Rd6 Bd7 Rdh6 Qe3+ Kd1 Be6 Rf6 Bd5 Re6 Ba2 b3 Nd5 Nb4 Qf3+
1nNr1Bn1/1PR2R2/q3p2B/1n5p/nk3r2/bnb1Q1R1/2Kp3P/4RRr1 b - - 0 1 legal: proof: c4 f5 b4 a5 g3 axb4 g4 fxg4 Nh3 b5 Bg2 b3 Ng1 b4 Bh3 Ba6 Bf1 Bb5 cxb5 e6 d4 Qg5 e4 Qe5 d5 Qg5 e5 Qd8 Bg2 Ra3 d6 Ra8 Bd5 exd5 e6 Ra5 e7 Ra6 Nc3 Ra5 Na4 Ra6 Nc5 Ra8 Ne6 dxe6 Qf3 Kd7 Qe2 Qe8 Qd1 Qd8 Kd2 c5 e8R h5 f4 g5 a4 c4 b6 Kc6 d7 Kc5 f5 c3+ Kd3 d4 f6 g3 f7 g2 a5 b2 b7 b1N a6 b3 a7 g4 Nf3 g1B Ra2 g3 Ne1 b2 Bg5 c2 Ra1 c1N+ Kc2 g2 Nf3 Nc3 Qd2 b1N Qe3 Qa5 d8R Nb5 Rc8+ Kb4 Rc7 Qa6 Nd2 N1c3 Ree7 Nb3 Rf1 Na4 Nc4 Rh6 Nd6 Rf6 Bh6 Rf4 Nc8 d3+ Kd1 d2 Kc2 Bg7 f8B Bc3 Re1 Bf2 Rhf1 Bh4 Rg7+ Be7 Rg3 g1R Rf2 Nd7 Rff1 Rb8 a8R Bc5 Nd6 Rd8 Rac8 Nb8 Rf7 Ka5 Rc6 Ba3 Rcc7 Kb4 Nc8+
2RB4/Kpr3qR/2pb2B1/1rn4P/1BP1BbnB/1b2N1qQ/4p3/b1n3k1 b - - 0 1 legal: proof: b4 a5 f4 axb4 a4 g5 e4 d5 g4 dxe4 a5 c6 a6 h6 a7 Na6 Na3 Qc7 Nc4 Qb8 axb8B gxf4 g5 h5 Ne5 Bh6 Ng4 hxg4 Bc7 Bg7 Bb8 Bf8 Kf2 Kd7 h4 Ke6 d4 Kd5 c3 e5 g6 f5 h5 f3 Ke3 b3 g7 f2 Bc7 f4+ Ke2 f3+ Ke3 b2 Qe2 b1Q Qd3 g3 Qb5+ Nc5 Ba3 g2 Bb4 Bd6 Bb8 Nf6 g8B+ Be6 Qb6 Ra5 Qc7 Ng4+ Kd2 Rb5 Qd7 Qb2+ Kd1 e3 Ne2 Ke4 d5 g1B Nd4 Bh2 Bg2 f1N Ra8 Bf4 Rg1 Rh7 Nf5 Ng3 Bf7 Ne2 Bg6 Nc1 Bh1 Qa3 Kc2 e2 Ba7 e1B Rc8 Qa1 Rg2 f2 Ne3+ Kf3 c4 f1Q Bb6 e4 Bd8 Qg7 Bh4 Bc3 Rg3+ Kf2 Bf3 Bb8 d6 Bf5 Qe6 Ba1 d7 Qg2 d8B Qh2 Rg1+ Qg3 Rd1 Qf6 Rd7 Kg1 Re7 Bbd6 Bg2 Rh6 Rh7 Qg7 Rh8 Qc7 Nd1 Rh7 Bf3 Rf7 Rh7 Nh6 Qd7 Bg4 Qe6 e3 Bfe4 Be2 Qh3 Ng4 Bd5 Bh8 Bde4 Rg7 Kb2 Re7+ Ka3 Ba1 Bg2 Bd3 B2e4 e2 Ne3 Bc2 Be1 Ra5+ Kb4 Bb3 Bd2 Ra6 Bc3 Rb6+ Ka5 Rf7 Bb4 Qe7 Bh1 Qf6 Bhe4 Rc7 Bc3 Rb4 Be1 Qg7 Bc3 Ra4+ Kb6 Ra5 Bb4 Rb5+ Ka7
4NrR1/2rn1NK1/1nqQ3B/1p6/5pNq/1q4NN/1P1Ppqk1/qbr1R3 b - - 0 1 illegal: No proof kernel forced: bxDB
3b2B1/5p2/1n1Knq1q/1R2r1k1/1Np2r1p/1QN2P2/Pq3RNq/N1q2N1r b - - 0 1 legal: proof: c4 g5 b4 d5 e4 dxe4 b5 g4 b6 axb6 c5 bxc5 Nf3 c4 Ng1 c3 f3 g3 Ba3 Qd7 Ke2 Ra6 Bc5 Rg6 Bf2 gxf2 g4 Qd8 g5 Ra6 h3 Bg4 hxg4 Ra8 Ke3 h5 Kf4 e5+ Kf5 Ke7 d4 c5 d5 b5 g6 e3 g5 b4 g7 c2 g6 c1Q Na3 e4 Ke5 b3 Bb5 f1Q Bc6 e2 Rh2 e1R Nc2 e3 Rf2 b2 Ne2 b1Q Nc3 Qbb2 Rb1 e2 Na1 Qh6 Qb3 Na6 Bb7 Nf6 g8N+ Kd7 g7 Qh1 d6 Be7 Be4 Nc7 Bd3 Nfd5 Bh7 Bg5 Ne7 Nb6 g8N Ra4 Ng6 Ne6 N8e7 Rf4 Nd5 c4 Ne3 Qh2 Nf1 h4 Qa3 Re8 Qb3 Rc1 Bg8 e1Q+ Re2 Qed2 Rg2 Qe7 Rf2 Kd8 d7 Qdc2 Nd2 Qf6+ Kd6 Rh1 Nf1 Re7 Qb4 Qcc1 Qb3 Rg4+ Nf4 Re8 Kc6 Ke7 Ng2 Rf4 d8N Qfg7 Bh7 Kf6 Kd6 Qgg6 Nc6 Kf5 Ne5 Bd8 Bg8 Qf6 Nd3 Kg5 Nb4 Re7 Qa3 Ra7 Qb3 Ra5 Na6 Re5 Nb4 Qe3 Rd1 Qe1 Rd5 Qec1 Rb5
r1N2K1b/2Bp2pr/1pk2nP1/nn2QrN1/PNNn1B2/8/2r4r/Nq4R1 b - - 0 1 illegal: Other
1Q1Rr3/1pPRbKB1/bbq5/4qPp1/Rr1p4/2k5/n2np3/1RR1BN1n b - - 0 1 legal: proof: e4 a5 d4 f5 f4 fxe4 b4 axb4 Nd2 c5 dxc5 g5 Nb1 g4 Nd2 h6 Be2 Qa5 Ndf3 Bg7 Ng5 Qc7 Bf3 gxf3 g4 Bf8 Nh7 Ra3 g5 Ra8 g6 Qd8 Ng5 hxg5 Kd2 d5 Ke3 Kd7 Kd4 Ke6 h4 e3 a4 b3 c4 e2 a5 e1B c6 b2 a6 b1Q c5 f2 a7 f1N h5 Qe8 g7 Qb5 c7 Qec6 h6 Nd2 h7 Nf6 g8R Nfe4 Ne2 Na6 Rb1 Ng3 Rg7 Bd7 c8R Nb4 Rd8 Na2 f5+ Kf6 Rg1 Nh1 Ng3 e6 Qc2 Be7 Nf1 Re8 h8B Qe2 Qd3 Bf2+ Qe3 Rc8 a8R Qe1 Ra4 e5+ Kd3 e4+ Kd4 Rc7 Bb2 Be6 Bc3 Bf7 Ba5 Bh5 Bc3 Be2 Rd1 Ba6 Bb4 Bg3 Qf4 e3 Ba5 Rd7 Qb8 Bc7 Bb4 e2 Rb1 Qc1 Ba5 Qe6 c6 Rd6 Bb4 Qb2+ Kc5 Ke5 Rh7+ Ke4 Bg7 Kd3 Bbc3 Ba5 c7 d4 Rd1 Qc2 Rb1 Qf6 Rd1 Re6+ Kd5 Rb6 Rb1 Rb4 Rd1 Qf8 Ke6 Qh8 Kf7 Bb6 Rb1 Nc4 Be1 Nd2 Rh6 Qc6 Rhd6 Qh2 R6d7 Qe5 Rg3+ Kc2 Rd3 Nb3 Rd2+ Kc3 Rdd1+ Nd2 Rdc1+
5R2/q2pB2P/4rrN1/3npnBK/q1Q4P/pBNnB2k/b1B2p2/r5q1 b - - 0 1 illegal: No proof kernel
b3q2B/r7/1RNN1rpQ/pr1n3B/K6P/p1r2qNP/pq1k4/1nN2N2 b - - 0 1 illegal: No proof kernel
1qb5/N2n1prb/1q2qk1K/1N1Pb2R/1BR1qn2/1rN3bN/1Q3P2/1Nq4b b - - 0 1 legal: proof: c4 e5 b4 a5 d4 axb4 h4 g5 c5 gxh4 c6 e4 e3 dxc6 Bd2 c5 Bd3 exd3 Bc1 c4 Kd2 Ke7 a4 c5 g4 b5 d5 h5 a5 c3+ Ke1 b3 a6 b4 g5 d2+ Ke2 c2 Kf3 b2 Kf4 b3 a7 h3 e4 c4 g6 c3 Kg5 h4 e5 h2 g7 h3 e6 Nd7 Qe2 d1Q Nd2 b1B Qb5 b2 Nf1 Qb6 Qa4 Rb8 a8N Qe1 Qa5 Rh7 Bd2 c1Q Nc7 c2 Nb5 Ngf6 Qa2 Nh5 Na7 Nf4 Qb3 Qe4 Ra4 Qce1 Rb4 c1B Rc4 Bd3 Qc2 b1Q Qb2 Q1e2 Bc3 Be3 Ba5 Bd4 Nd2 Be5 Bc3 Qc1 Nb1 Q2e3 Rc6 Qeb4 Rc4 Q4d6 Bb4 Rb7 Kg4 Kf6 e7 Qb8 g8N+ Kg6 e8N Rg7 Qe2 Bfd6 Nc7 Qe4 Ncb5 Bc7 Ne7+ Kf6+ Ng6 Qf5+ Kh4 Qfe6 Qb2 Be4 Ne2 Bd6 Rd1 h1Q Nec3 h2 Rg1 Bc2 Rg5 Qe4 Rh5 h1B Rh8 Ng2+ Kh5 Bg3 Nf4 Be5 Nh3 Nf4+ Kh6 Qg2 Na2 Bh7 Nac3 Qe4 Rc6 Rc7 Rc4 Rc5 Nc7 Ra5 Nc7b5 Ra3 Na2 Rb3 Nac3 Bf5 Rh7 Bg6 Rh8 Bh7 Rg8 Rg4 Rg5 Qa5 Rh5 Rg7 Qa2 Qab6 Qb2
1kb1rb1r/2p2qQB/n3b3/3B2NB/r2R2P1/r1P2bn1/NK1nB3/5qBr b - - 0 1 illegal: Other
1rNKB1qN/p5q1/r1rQ3k/nPN5/b1Rn2b1/P4bB1/n1NnN3/q5b1 b - - 0 1 legal: proof: c4 d5 f4 b5 e4 bxc4 g4 dxe4 b4 g5 Na3 gxf4 g5 h5 Rb1 Bh3 Rb3 Bg4 Rg3 Bc8 Rg4 hxg4 Kf2 c5 h4 f5 d4 Kf7 h5 Kg7 g6 e5 d5 c3 d6 f3 Kg3 e3 d7 e2 Rh4 e1N Bg2 e4 Kf4 e3 Ke5 f4 Ke6 c2 Bh1 g3 Qd2 e2 Qe3 g2 Qe4 f2 Qb7 f1B Qf3 c4 Rh3 c3 Nb5 Nf6 a3 Ne4 Qe3 f3 Qg5 f2 Rh2 Bc5 Qe3 Nf3 Rh3 e1Q Nd4 Be2 Rg3 f1B Qd3 Rh6 Bf4 c1N Nc2 Nc6 Rg4 Na5 Qd6 Na2 Bg3 Qg8+ Ke7 Nd4 d8N Bf3 Ne2 g1Q Nb7 Nd2 b5 Qa1 Re4 Rb8 Rf4 Bb6 Nc5 Be6 Rh4 Bb3 Bg2 Bg4 Bc6 Ba4 Be8 Bf3 Re4 Bh3 Rf4 Bhg4 Re4 Kh8 g7+ Kh7 Rf4 Rf6 h6 Qg2 Bc6 Kg6 h7 Kh6 h8N Rg6 Be8 Qgg1 Nb4 c2 Re4 c1R Nc2 Ne6 Rc4 Qg2 Nd7 Bg1 Nc5 Nd4 Qe6 Qh7 Qe5 Ra6 Qd6+ Qg6 g8N+ Kg5 Nh6 Qg7+ N6f7+ Kh5 Qb6 Qg8 Nd6+ Kh6 Qc7 Kg5 Nc8 Kh6 Bh4 Qg3 Kd8 Qe5 Bg3 Qeg7 Qe7 Re1 Nc1 Ree6 Ne2 Rec6 Qd6+
3N1n2/QN1B1P1p/1nb2nN1/nNr3q1/1k5b/2n4P/2KNn1rb/1RB1b1r1 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 f4 g5 f5 a5 Ra3 axb4 Rf3 Qb6 Rf2 Qd8 Rf4 gxf4 Kd2 e5 c4 Ke7 g4 Kd6 g5 Kc5 g6 b5 a5 d5 g7 e3+ Kd3 e2 a6 e1B a7 b3 f6 e4+ Ke2 b2 f7 b4 h3 e3 Kd3 b3 Na3 b1N Bb2 f3 Qd2 f2 Qe2 Nd7 Nb5 Bb7 Qg4 e2 Qe6 Nc3 Nf3 Na4 Qf5 Qg5 Rg1 Nab6 Na3 Bd6 Bc1 b2 Qe5 b1R Nd2 Rc8 a8N Ngf6 g8N Kb4 c5 Bc6 Nb5 Nf8 Bg2 f1N Nb3 Ng3 Ne7 Rg8 Na5 Bf2 Qe6 e1B Qg4 Ne2 Qd7 Bh2 Ng6 Bh4 Qa7 Ra1 Kc2 d3+ Kd1 d2 Kc2 d1N Nac7 d4 Nb3 Nb2 Ne6 N2c4 Nd2 Rb1 Nd8 Na5 Bd5 Rc7 Be6 Ra1 Bd7 d3+ Kd1 Ba8 c6 Ra2 Nf3 d2 Rf1 Rc8 c7 Bc6 Rh1 Ra1 Kc2 d1N Nd2 Ndc3 Rf1 Rb8 c8N Rb1 Nce7 Rc8 Nb7 Beg3 Rd1 Bf3 Bb2 Rc5 Re1 Qe3 Nf4 Bc6 Ne6 Rg4 Ng6 Qg5 Ned8 Bf2 Rc1 Rg2 Rf1 Bfg3 Rf5 Rbg1 Rf1 Bf2 Rb1 Be1 Bc1+
3q4/1q1Br3/1NR2QBr/2br1rP1/Kn4N1/BrB1kbp1/4n1P1/1qqr2B1 b - - 0 1 illegal: Other
K2NbB1q/1R4p1/1rr1QnN1/8/B4p1k/1bq2PNP/1N1r1b1n/2bN1nb1 b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 d4 dxc4 g4 h5 d5 hxg4 Ra3 e6 Rd3 e5 Rd4 exd4 Kd2 Ke7 e4 Kf6 a5 Kg5 f3 f5 e5 b5 e6 c5 h3 c3+ Kd3+ f4 Ke4 c4 a6 b3 a7 c2 d6 c3 Kd5 b2 e7 d3 e8N g3 d7 d2 Nd6 g2 Rh2 b4 Qe2 d1B Qe5+ Kh4 Qe7+ Nf6+ Kc5 b3 Qe6 Nc6 Be3 c1Q Rh1 c2 Qf5 Ne5 Bb5 Rh6 Ba4 Neg4 Kc6 Nh2 Nc3 b1R Qe6 b2 Nf7 Bc5 Ne5 Qh8 d8N Bd7+ Kb7 Be8 Nge2 g1B Ng3 Bb6 Bd2 Bbf2 Be1 Rc8 a8N Rc6 Nb6 Ra1 Ka8 b1N Bd2 Ra2 Nbc4 Rg6 Be3 Nd2 Bc5 Ndf1 Bf8 Qa1 Nb2 c1B Ng4 Bb3 Ne5 Qb1 Ncd1 Qd3 Nbc4 Rd2 Ncb2 Nhg4 Rh2 Qc3 Rg2 Bc5 Re2 Bcf2 Re4 Ngh2 Rb4 Rg4 Rb7 Rg5 Ng4 Rb5 Ne5 Rbb6 Ng6+
6bK/2RR1NR1/kbnn2r1/2b1Rn2/2qpP3/1b1P2pB/n1r1b1R1/1N1Qn3 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 Kf2 b5 a4 g5 c4 f5 h4 d5 e4 Kd7 d3 Kc6 a5 Kb7 h5 f3 Ke3 f2 Kd4 f4 Ke5 b3 h6 g3 c5 g2 h7 g4 c6+ Ka6 c7 g3 Nc3 b1B Na2 f3 Qc1 b4 Qd1 b2 Nc1 b3 Rh4 Be6 c8R Qc7+ Kd4 Nh6 Nce2 Nf7 Rh6 Qc4+ Ke3 Bc2 Kf4 b1N Rc5 b2 Qe1 Nd2 Rg6 b1N Rg7 Bb3 Rc7 Rg8 h8R Nd6 Ke5 Nc6+ Kf6 Rc8 Rh5 Nc3 Nh3 g1B Ng5 Na2 Bh3 f1N Nf7 f2 Qd1 Ne3 Nc3 f1B Nb1 Be2 Re5 Nef5 Kg6 Bf2 Kh7 Bb6 Rd7 d4 Rc7 Nab4 Ra2 Nf3 Rb2 Ne1 Rd2 Bh5 Rg2 Na2 Rd7 Be2 Rc7 Bd5 Rd7 Kb5 a6 Rc7 a7 Ka6 Rg4 Rg6 a8R+ Kb7 Rc8 Ka6 Kh8 Be7 Nd8 Bg8 Rg5 Bc5 Nf7 Bd8 Rb8 Rc8 Rbb7 Bdb6 Rbc7 Rb8 Nd2 Ba7 Rh2 Re6 Nh6 Bc2 Rg4 Rb2 Nb1 Bab6 Rg5 Bb3 Rgg7 Rc2 Nf7 Rg6 Rg2
1bNN2qk/n2q1r1R/1Rb1nR2/1Rb4b/K1b3r1/1p2pP2/2B1P2Q/1br4R b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Be3 fxg6 Bc1 g5 Bf4 g4 Bg3 hxg3 Kd2 Kf7 c4 e5 Kc2 d5 Kb3 g5 a4 Kg7 h4 b5 a5 e4 f3 e3 a6 g2 h5 d3 a7 d2 c5 g3 c6 d4 c7 g4 Ra3 d3 Rh2 Na6 Ra2 Bc5 Qc2 d1B Rh3 d2 Ra3 Ne7 Ra1 Qd7 Rh4 Rf8 h6+ Kh8 h7 Rf7 Nc3 Nc6 Nh3 g1R Nb1 g2 Rh6 g3 Rf6 Bb7 Ra3 Rc8 a8R Na7 Ra5 Bc6 Rb8 Rg8 c8R Nc7 Re8 Ne6 Na3 Rh1 Re7 g1B Nf4 g2 Ra6 Bh2 Nc4 g1Q Nd6 Qg3 Rbb6 Rg4 Bh3 Rf1 Nc8 Qg1 Nd5 Bb8 Nc7 Qg2 Ra5 Rg1 Kb2 b3 Qe4 b4 Qe5 Bc2 Qh2 d1B Rab5 Rf8 Rg7 Bg6 Na6 Bh5 Nc7 Rh4 Bg4 Rf7 Bf5 Rg4 Bc2 Rf1 Ne8 Qg3 Ned6 Rh1 Nb7 Qg1 Kb1 b2 Ka2 b1B+ Kb3 Qg2 Ka4 b3+ Be4 Bdc2 Nd8 Rf1 Qf4 Bd3 Qh2 Bc4 Bc2 Rg1 Qc7 Rc1 Rb7 Rh4 Rg5 Bg6 Rb6 Kg7 h8R Rd4 Rh1 Qg3 Rd5 Bh5 Rg5+ Kh8 Rgg6 Qg5 Qd6 Rg4 Qh2 Qh6 Rg5 Qh7 Rg7 Qg8 Rh7+
4rnR1/KB2rnpN/2N1rN2/2N1n1Pb/P2b3b/2bqR2p/3b1Qk1/4rN2 b - - 0 1 illegal: No proof kernel
B1r2b1R/n7/2B2q2/Q3p2q/1b2PBrk/n1Br4/pr1BKP2/N1R2nbb b - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Nd2 h4 Ne4 fxg6 Kd2 g5 Ke1 g4 Ng3 hxg3 c4 Kf7 h4 Kg6 b4 Kh5 b5 g5 e3 a5 c5 d5 c6 a3 c7 a4 b6 a2 b7 a3 Ke2 d3+ Ke1 d4 Nf3 g2 Bd2 g1B Nh2 Nc6 b8B Bb7 c8B Na7 Qc1 g3 Bc3 d2+ Ke2 d1R Bc7 g4 Bb2 g2 Be5 g3 Qc7 Nf6 Qd7 Nd5 Bd6 d3+ Kf3 d2 Bf4 Rb8 Rb1 a1N Qc7 a2 Bd7 Nc2 Bd4 Na3 Ng4 Bh2 Ke2 g1B Qa5 g2 Bc6 e5 Rc1 Qf6 Bc3 Bg3 Rh3 Ba8 Rh2 Rb2 Rh1 Bb4 Rh2 Rc8 Rh1 Kg6 h5+ Kf5 h6 Bh4 h7 Bb7 Bh2 Kg5 h8B Kh5 Bg7 Bg5 Qb6 Bh6 Qa5 Kh4 Bf8 Ba8 Bc5 Bf8 Bf4+ Bh2 Bb6 g1R Bg2 Bb7 Be4 Rg3 Nh6 Rg4 Nf5+ Kh5 Nd4 Kh4 Nb3 Ba8 Rf1 Bg1 Bc5 Ne7 Bd6 Nf5 Na1 Ng3+ Kd3 Bh2 Rh1 Nf1 Be7 Re1 Bc5 d1Q+ Bd2 Qf3 Bd4 Rd1 Bc3 Qh3 Bg2 Bg1 Ke2 Rb1 Be1 Rd3 Bed2 Rb2 Rh2 Bb7 Bh1 Ba6 Ba8 Bc4 Bhb7 Bd5 Bc6 Bh1 e4 Rg7 Rg2 Qhf5 Rg5 Qh7 Rf5 Rg4 Rg5 Qhh6 Rg8 Qh5 Rh8
1K1NB3/1B1Bkpb1/q1Bp3q/P1nPb1n1/7R/n2r2N1/Q2Bbq1n/4qr2 b - - 0 1 illegal: No proof kernel
7K/n3Qp1b/qr1R1rRB/B1B1B1q1/r3p3/2n2P2/BPq4N/bbq3bk b - - 0 1 illegal: Other
2QB2N1/2PNNp2/K4P2/b1bN1r2/r1p1B2N/4nr2/1Rrrr2b/qb3n1k b - - 0 1 illegal: No proof kernel
4R3/2kqbp2/nq3Rnp/N1rNr1Rb/p2P1P2/1b3nK1/3B2Q1/q1R1R2r b - - 0 1 legal: proof: c4 e5 a4 b5 h4 bxa4 d4 d5 h5 dxc4 h6 e4 e3 gxh6 Rh4 h5 Bd3 exd3 Rh1 h4 b4 Kd7 f4 c5 Kf2 a5 g4 h3 b5 a3 e4 a2 g5 c3 e5 h2 e6+ Kc7 e7 c2 e8R c4 g6 c3 g7 d2 Na3 h6 Re7+ Qd7 Re5 a4 Rf5 Ne7 g8R Ng6 Rd5 Ra5 Rd6 Be7 Rd5 Na6 Qg4 d1B Bd2 c1Q Rf5 c2 Kg3 Qb1 Ne2 c1N Rf6 Bb3 Re1 h1R Nc4 Nd3 Nc3 Nde5 Rg7 Qb2 Rac1 a1Q Qh3 Qbb1 Qg2 Re8 Rg8 Nf3 b6+ Kb8 b7 Rc5 Na5 Kc7 b8R Bb7 Re4 B7d5 Re3 Bd1 Rg7 Qb6 Re1 B5b3 Rd8 Bf8 Ra8 Ree5 Re8 Be7 Rgg8 Ng1 Rg7 Bh5 Rgg8 Nf3 Rg7 Nf8 Rg5 Ng6 Nd5+
1R1rR2R/3pp1R1/2P1q1pK/1n5R/2QB1r2/3qb3/Nk2rnP1/bn1Bq2b b - - 0 1 illegal: Other
8/R3P2q/2Np4/p2PpNb1/2N3nr/k1r5/1qbQBrrn/rbRNK2N b - - 0 1 illegal: No proof kernel
2kq4/1Bn2prb/q3R1B1/1P1bQrnp/2nB4/1BB2P1p/2K2n2/1RbN1n2 b - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 h4 dxc4 d5 g5 Na3 gxh4 Nb5 e5 Nd4 exd4 Kd2 Kd7 e4 c5 g4 a5 b4 h5 g5 h3 f3 d3 g6 c3+ Ke1 c4 e5 a3 g7 c2 Kd2 a4 Rb1 a2 Ra1 a3 Qe2 c3+ Ke3 d2 Kd3 d1B Bb2 c1N+ Ke4 c2 Rh2 Na6 Qf2 Rh7 Rh1 Bb7 e6+ Kc8 e7 Nd3 e8B c1N Rb1 a1N Qg3 a2 Bc6 Ncb3 Bd4 Bc2 Ne2 Nc7 Nc3 Ra5 Nd1 Nf2+ Ke3 Bd6 Bc4 Nf6 g8B Nd2 Bb3 N6e4 Re1 Rg7 Bh7 Ng5 Be4 Rc5 b5 Bf4+ Ke2 Nf1 d6 Qf6 Qh2 Bc1 Bh7 Bf5 Bcd5 Nc2 d7+ Kd8 Qf4 a1Q Qh2 Qaa6 Bc3 Bc8 Bb7 Nce3 Qf4 Nc4 Bd4 Nfe4 Kd3 Nf2+ Kc3 Be6 Kc2 Re5 Bd3 Bf5 Bde4 Bh7 Bg6 Rf5 Re7 Qfd6 Qe5 Qf6 Ba8 Qfd6 Re6 Bb7 Bc3 Bd5 Bb7 Ne8 Bd4 Kc7 d8B+ Kd7 Bc6+ Kc8 Ba5 Nc7 Bac3 Qd8 Bb7+
2n1nbr1/5K1b/1n4R1/r2RN3/3P1BRQ/p4r2/P1p1pNR1/k1nq1qbR b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 h5 Nc3 h4 Be2 h3 Bf1 fxg6 Bg2 hxg2 Nb1 g5 Qf3 g4 Qe2 Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 Kd4 Kg6 c5 h4 e5 f4 a5 b4 e3 b5 a4 h5 e4 f5 a3 f6 e2 b6 e1R h6 e3 f7 e2 b7 g3 d3 c3 h7 c2 Qd2 c4 Qh6 c3 Qh3 Nd7 b8R Ne7+ Kg5 Nf6 Qf5 Ra5 Ra8 Rg8 h8R Rf1 Ra7 Rf3 R1h2 Ne8 Bf4 c1N R8h5 c2 Nd2 Kc3 Nh3 Kb2 Nb1 g1N Rh4 g2 Nf2 Nh3+ Kh5 g1Q d4 g5 Rg2 g4 Qg5 g3 Ra6 Qd1 Nd2 Bf5 Rg6 Nc8 Rg4 Qf6 Qh4 Bd3+ R6g5 Bh7 Nc4+ Kc3 Ne5 Kb2 Rh2 g2 Rg6 g1B Rhg2 Bb4 f8R Qf5+ Bg5 Nf4+ Kh6 Nd5 Bf4 Bd6 Rff6 Bb4 Rd6 Ndb6 Rd5 Qf7 Kg5 Bf8 Kh5 Qc7 Kg5 Qc3 Kf5 Qce1 Ke6 Qf1 Kf7 Nb3 Ne4 Qd3 Rc1 Be3 Ng5 Qh1 Rcg1 Nc1 Nc4+ Ka1 Ne4 Qd1 Rf1 Qg1 Ne5 Qf2 Rfg1 Qff1 Rh1 Bg1 Nf2
k3nb2/1N1pb3/N1bP3b/Np1bN1Pr/3Qq1R1/b1r4n/qp3R1K/3N3B b - - 0 1 illegal: No proof kernel
1Nk2rn1/p1N5/2b2qbP/2nNbnN1/3pr2N/3b1KR1/1QpP4/1n2BBb1 b - - 0 1 illegal: No proof kernel
2Nn4/3BP1K1/3n1R1N/p1p2Q2/Pqq4r/nb2b1nN/1BN1prk1/2bN3b b - - 0 1 legal: proof: e4 e5 b4 g5 h4 gxh4 d4 b5 c4 bxc4 a4 exd4 e5 f5 Ra2 Bg7 Re2 Bf8 Re4 fxe4 Ke2 Ke7 g4 Ke6 f4 Kd5 b5 c5 b6 h5 e6 a5 g5 e3 Kf3 c3 f5 h3 Kf4 c2 g6 e2 g7 d3 f6 h4 Kg5 Ke4 Kg6 d5 f7 d2 b7 h2 e7 d4 Na3 h3 Qe1 d1Q Bd2 c1B Bb4 d3 Nf3 d2 Bc3 Qd3 Nb1 Nh6 g8N Qb3 Ba1 d1N Be5 Nc6 b8N Nc3 Nd4 Nb5 Kf6 Na3 Qf2 Qdc4 Nc2 Nf5 Bb2 Nd8 Nd7 Nd6 Nh6 Qbb4 Nb6 Be6 Nc8 Rh7 Rg1 h1B Rg6 h2 Bh3 Bd5 Bd7 Be6 Nf5 Bfh6 f8N Bhe3 Nh6 Bg8 Ne6 Rh8 Ng4 Rh4 Kg7 Rb8 Nf4 Rb6 Qe1 Kf3 Nh3 Kg2 Rf6 Qa6 Qc3 N6f7 Rh6 Rf6 Ng1 Nd6 Qd2 Bb3 Qd3 Rf2 Nc3 Qac4 Re6 Kg3 Nh6 Bf3 Nh3 h1N Rf6 Kh2 Na7 Ng3 Qf5 Bh1 Nd1 Kg2 Nc8
R4nbQ/N2bB3/2N2Nkp/Kpr1n2P/2r1r1n1/P2B4/N1p1p2b/3q2qN b - - 0 1 legal: proof: c4 f5 b4 d5 e4 fxe4 f4 dxc4 a3 a5 f5 axb4 Ra2 g5 Rc2 Ra5 Rc3 Ra4 Rf3 Ra8 Rf4 gxf4 h4 Kf7 d4 e5 Kd2 b5 g4 c5 d5 f3 d6 f2 f6 b3 Kc3 e3 g5 e2 d7 e1N Qc2 h6 Qe4 b2 Be3 Bd6 Nf3 Nd3 Nfd2 Ra4 Qd4 e4 Rg1 Ne5 Bd3 Kg6 f7 Nf6 Nf1 Nfg4 Ng3 f1B Nh1 Re8 Bd2 Qb6 d8N Nbd7 Nc6 Nf8 Na7 Bh3 Rf1 Be6 Rf5 e3 Rf1+ Kh5 g6 e2 g7 Bd7 Rf5+ Kg6 g8N Bg2 Bc1 Bd5 Bg5 Rc8 Be7 B5e6 Nd2 b1Q Nf6 Qd1 Nb3 Rc6 Nc1 Bc7 Kb2 c3+ Ka1 Nf3 Ne8 Nh7 Qh8 c4 Ka2 Qbg1 Rc5+ Bf5 Nf6 Bh2 Qe8 Rc8 Qh8 Nfe5 Rc7 Rb4 Rb7 Be6 Rb8 Rc5 Ra8 Bd7 Ne4 Bfe6 f8N+ Kf7 Nf6 Ra4 Ng6 Nf8 Nf4 Rb4 N4d5 Ra4 Ne4 Kg6 Nb4 Bg8 Nbc6 c2 Nb3 c1R Nf6+ Kf7 Kb2 c3+ Ka2 c2 Kb2 Ra1 Nc1 Re4 Na2 Rc1 Kb3 Kg6+ Bc4 Ra1 Kb4 Rb1+ Ka5 Rb4 Bd3 Rbc4 h5+
b2r1BK1/b1pR1r1N/q2rq2N/1pp1N3/Q4Pp1/1k1N1q2/4NnP1/3R1n1b b - - 0 1 illegal: No proof kernel
2K2NN1/3p2k1/n4pnr/bN1pn3/2b4Q/1B1NPn2/np1PR3/1r2rqBN b - - 0 1 legal: proof: f4 a5 h4 e5 b4 axb4 a4 exf4 h5 c6 Ra3 g6 Rah3 gxh5 Rd3 h4 Rd5 cxd5 Kf2 b5 Kf3 h5 c4 b3 g4 b2 c5 b4 c6 h3 c7 h4 a5 h2 g5 h3 a6 b3 a7 Bd6 g6 Kf8 Nc3 b1N Qe1 Ba6 c8N Bc4 Bb2 Na6 Ne7 Bc7 Na2 Ba5 Bd4 b2 Nb4 Rh6 Nd3 Nc3 Qh4 Na2 Kg4 f3 Kf5 f2 Ke5 f6+ Kd6 Qe8 g7+ Kf7 Ng6 Ne7 g8N Kg7 Nf8 Ng6 Be3 Qe4 Bd4 Re8 a8N Qf5 Nc7 Re4 Nb5 Re5 Bg2 f1N Be4 Qf4 Nf3 Qf5 Ng5 Qf2 Rg1 h1R Rg2 h2 Nh3 Rg1 Ba7 h1N Bf5 Qf4 Nhf2 Nh2 Bg4 Rb1 Bc5 Ng3 Nh1 Ngf1 Bg1 Ne3 Bf5 Neg4 e3 Qf1 Re2 Nf3 Be4 Reh5 Bf5 N4e5 Be4 Nf4 Ke7 Nfg6+ Ke8 Nc7+ Kd8 Na6+ Kc8 Rf5 Ne1 Rg5 Bc2 Rg2 Nd3 Rg4 Rh2 Rg2 Bd1 Re2 Bb3 Ree1 Re2
NQ4R1/r7/pbk1p1Nb/bp3N1b/2nRKp1N/P1r5/n1Pq3N/2B2n1r b - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 Kf2 Kd7 h4 b5 d4 f5 h5 a6 g6 f3 Ke3 f4+ Kd2 e3+ Kd3 f2 a3 f1N g7 e2 h6 e1B h7 b3 d5 b2 d6 g3 Rh3 g2 Nd2 b1R Ngf3 g1B Nh4 Kc6 d7 Nh6 g8N Nf7 Rg3 Rb3+ Ke4 Bb6 Ndf3 Bh6 Nh2 Rc3 Rb1 Ne5 Rb4 Bb7 Rd4 Ra7 Qh5 Nc4 Qe5 Rd3 Rg4 Bea5 Rg3 Rc3 Rg4 Bg7 Nh6 Bf8 N6f5 Bh6 Rg8 Ba8 Ng7 Bb7 Ne8 e6 Nc7 Qg5 Na8 Qg2+ N2f3 Qf2 Nh2 Qd2 Rf8 Rg8 h8N Rg1 Rg8 Rh1 Nc7 Ba8 N8g6 Kb7 Qh8 Nc6 Qe5 Nb4 d8N+ Kb8+ Nc6+ Kb7 Nce7 Na2 Nef5 Kc6 Qh8 Bb7 Re8 Bc8 Qe5 Bd7 Rg8 Be8 Na8 Bf7 Qb8 Be8 Nh8 Bh5 N8g6
1N1qbn2/2R1p1rB/1b1bq2n/2k1p2P/RN2r2n/KpN1P1Qb/1p3N2/6N1 b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 d5 hxg4 d6 f6 Ba3 cxd6 Bc1 d5 Bf4 d4 Be5 fxe5 Kd2 g5 Kc1 b5 Kb2 d5 f4 Kd7 c4 Kc6 a4 d3 h4 g3 h5 g4 c5 b3 a5 g2 f5 d4 f6 d2 a6 b4 a7 g3 f7 d3 Qe1 d1Q Nd2 Rh7 Nc4 d2 Ra2 Nd7 Ra4 Rg7 Qf2 Nh6 Ne3 Kb5 c6 Kc5 c7 Rb8 Nf3 g1N a8N g2 Qg3 Rb7 Nb6 Qc2+ Ka1 d1B Nbd5 b2+ Ka2 Qf5 Nc3 Qe6+ Ned5 b3+ Ka3 Bc2 Rh2 Bg6 Nb4 Rb6 Rh3 Rd6 Rh2 Rd4 Rh1 Re4 Rh2 Nh3 Ng1 Ng5 Rh4 Nf3 Ra7 Bb7 c8N Bd5 Rf4 Nh4 Rc7+ Bc6 Nd6 Bf5 Ne8 Bh3 Nf6 Rg5 Ng4 Rg7 Nf3 g1B Nf2 Rg4 Bg2 Bg7 Bf1 Nf8 Bg2 Bf6 Bf1 Rg7 Rg4 Nfg6 f8N Bg5 Bg2 Bd2 Nd7+ Kd6 Rf4 Nf8 Nb8 Be8 Bf1 Be3 Bg2 Bc5 Bh1 Bh2 Ng1 Bb6 Bf3 Bc5 Bg4 Bb6 Bf5 Bc5 Nf3 Bg1 Bh7 Bb6 Nfd1 Bgd4 e3 Bdc5 Ng1 Bd4 Ra7 Kc5 Ra4 Bc7 Rf2 Bd6 Rc2 Kc4 Nf2 Bb6 Rd2 Kc5 Rd4 Bdc7 Rd7 Bd6 Rc7+
5N2/pb3pR1/B1k3Bq/3p3R/1B1QpP1K/2qP1qr1/B1n4B/qbb1n2r b - - 0 2 legal: proof: e4 b5 a4 bxa4 h4 d5 h5 dxe4 h6 c6 Nc3 gxh6 Qe2 h5 Qd1 h4 Nd5 cxd5 g4 Kd7 b4 e5 c4 h5 f4 a3 Kf2 h3 Kg3 a2 g5 e3 c5 h2 b5 e2 g6 e1Q+ Kh3 h4 b6 Nf6 b7 Nc6 b8B Ng4 g7 Bb7 g8B Qb6 Bh7 Nd4 Nf3 Nc2 Bc4 Nge3 Bg6 Ng2 Bd6 Kc6 Ng5 Rh6 Rb1 a1Q Ba2 Qc3+ Kg4 h3 Ne6 Qe2+ Kg5 Qef3 Be7 Bg7 Nf8 Nge1 Ba3 Qbb2 Bb4 Qa1 Bd8 Rh7 Bb6 Rh4 Rg1 h1Q Rg4 h2 Rb3 Kb5 c6 Rc8 c7 Kc6 Rg2 Rg4+ Kh5 Rg3+ Kh4 Re8 c8B Rd8 Nh7 Rh8 Bg1 Bf8 Ba5 Ba3 Bb4 Bc1 Ra3 Ba8 Ba6 Bb7 Bb6 Qhf1 Bg1 h1B Bh2 Q1f2 Rg1 Qb6 Rb3 Bg2 Rb1 e4 Rb3 Bf1 Rb2 Rg8 Nf8 Bd3 Rh1 Rg1 Rb1 Rf1 Rg1 Rg7 Rg5 Rh1 Rh5 Nd4 Rb2 Bb1 d3 Rg8 Rg2 Ndc2 Qd2 Rg7 Qf2 Rg8 Bf5 Rg3 Qd4 Kc7 Bh7 Qh6 Bf5 Rg8 Rg7 Kc6 Rh7 Rg2 Rg7 Rg3 Bg6
1q6/R1r3pQ/2n3KN/kb1p1RP1/4RBp1/1B2p2R/2RPqp2/bnb3rn b - - 1 2 illegal: No proof kernel
K5b1/2RnB1Np/1p2R2p/n1P3qp/1Prb2Q1/R1nR1pR1/5b1k/3br2N b - - 0 1 illegal: No proof kernel
B2Q1r2/1pq3pK/1N2p1r1/3bB1pP/1npN2Nn/1N2b3/nRP2pkr/1N6 b - - 0 1 illegal: No proof kernel
2Q2BkB/q1pB1pbR/2N2NBr/7b/4p2p/n2pp1r1/P3P1p1/KBnq4 b - - 0 1 illegal: Other
2Bqn1K1/q3N3/1BN2P1q/b2Nqq1r/4B1RQ/3krN2/P1q5/2r1r2b b - - 0 1 illegal: No possible last move
2q1R3/2b3n1/6BB/1RN1p1nr/K1R4n/2Pb2B1/1QrqP1Bk/b3q2r b - - 0 1 legal: proof: b4 a5 g4 g5 a4 c5 d4 cxd4 f4 axb4 Na3 b5 axb5 bxa3 fxg5 h5 Qd2 hxg4 Qd3 Rh3 Qd1 Rh8 Kd2 e5 h4 Ke7 g6 Ke6 b6 Kf5 g7 Kf4 h5 Kg3 c3 d5 Kc2 f5 Kb3 f4 h6 d3 h7 d2 b7 f3 Qc2 d1R Bh6 a2 Rh4 d4 Bh3 d3 Rc1 a1B Rb1 f2 Bg2 f1Q Be4 d2 Be3 Nh6 g8B Bd6 Bgd5 Bc7 Bh1 Na6 b8R Qe1 Qd3 Bf5 Rb4 Nf7 Rb5 Ng5 Bhg2 Qc8 Qc2 Bd3 Nh3 Kh2 Bf2 g3 Bde4 Nc5+ Kb4 Nce6 Bg6 Ra2 Qb2 Ng7 Rc4 Rc1 Nf4 d1Q Ne6 Qdd2 Nc5 Rc2 Kb3 Ra6 Rd1 Rf6 Ka4 Rf5 Be3 Rf1 Bf2 Rh1 Rb1 Rf8 h8B Rf5 Ba8 g2 Bc6 g1N Bg2 Nh5 Bg7 N1f3 Bh6 Nh4 Rb8 Ng7 Ra8 Qg8 Re8 Qe6 Qa2 Qc8 Rb5 N5e6 Qb3 Rh5 Qb2 Ng5 Bg3+
n7/qn1q1RK1/NpkR1n2/1NN1RB2/2bQn1P1/Nq1rp1P1/1b6/7q b - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 a3 bxa3 Nh3 fxe4 Ng1 d5 cxd5 g5 g4 Be6 f4 Ra5 f5 Bc8 Bb2 Rb5 Be5 Rb3 Bf4 Rg3 hxg3 gxf4 Ke2 Kd7 d4 h5 d6 c5 f6 e5 f7 c4 d5 b6 Qb3 e3 Kf3 c3 Ke4 a2 Kf5 e4 Kg6 e2 Nf3 e1N Bg2 c2 Rf1 c1Q Qb2 e3 Qf2 h4 Rh1 h3 Rf1 h2 Qc2 h1Q Qd2 Qc3 Qd1 Nd3 Na3 Ba6 Nd4 f3 Ndb5 f2 Be4 Nc5 Qd4 Bg7 f8R Rh2 Re8 Nb7 Rad1 a1Q Re5 Nf6 Bc2 Qe7 Bf5+ Qe6 Rd2 Qb3 Rdd1 Rh8 Rd2 Rc8 Rd3 Rc3 Rdd1 Kd8 d7 Rd3 Rd2 Ke7 d8N Kd7 d6 Bh8 Nc6 Qaa2 Rg1 f1N Nb4 Bg7 Rd1 Nd2 Rgf1 Nde4 Rd2 Kd8 d7 Qa1 Nc3 Kc7 d8N Qd7 Rf3 Bc4 Ncb5+ Kc8 Rd1 Na6 Ne6 Nc7 Na6 Na8 Rf2 Qd6 Rff1 Kd7 Nec5+ Kc6 Rd2 Bf8 Rff2 Be7 Kg7 Qd7 Rh2 Qaa2 Rh8 Qaa1 Rf8 Qaa2 Rf7 Qaa1 Ne6 Bb4 Nec5 Bc3 Rh2 Qaa2 Rh8 Bb2 Rd8 Qe6 Rdd5 Qd7 Nc2 Qaa4 Nca3 Rd1 Nac7 Qa7 N7a6 Rd3 Rd6+
1BR1n2n/k1pP2r1/1pbr3b/1q3B1Q/4rBrN/P6N/3p1r1N/1B5K b - - 0 1 legal: proof: e4 f5 exf5 g5 b4 Kf7 c4 Nc6 h4 gxh4 c5 Nb8 b5 Ke8 b6 axb6 c6 d5 cxb7 Nf6 Qc2 Ng8 Qc4 dxc4 d4 Qd7 a3 Qd6 Ra2 Qd5 Rd2 Qd8 Rd3 cxd3 g4 Kd7 f4 Kc6 Kf2 h5 Kg2 e5 d5+ Kb5 g5 Ka6 g6 h3+ Kh2 e4 f6 h4 f5 e3 d6 e2 g7 e1R f7 Nc6 f6 Bd7 Bg5 Ne5 Bh6 Ng6 Ne2 Qe8 Bf4 Rd8 Nd2 Bc6 Ng1 Rh7 Ndf3 Ka7 Be2 d2 Bd3 Rf1 Bf5 Nh8 Bb1 Qe5 d7 Qb5 Bf5 Re8 Bb1 Re6 Bf5 Rd6 Bb1 Ne7 g8B Rg7 Bgh7 Ng8 Bhe4 Rg4 Bf5 Bh6 f8N Rg7 f7 Nf6 Ng6 Ne8 f8Q Re1 Be5 Re4 Qf6 Rg4 Qg5 Re4 Qh5 Rg4 Ne2 Re4 Kg1 h2+ Kg2 Rg4+ Bg3 Re4 Neg1 Rg4 Nh3 Re4 Rf1 h1R Re1 Rf1 Nh2 Rff4 Kh1 Rf2 Ngf4 Rg4 Ng2 Rg7 Bf4 Rg4 Ng1 h3 Nh4 Rg7 N2f3 h2 Nh3 Rb4 Re6 Re4 Rf6 Rg4 Rf8 Rg7 Rg8 Nf6 Rc8 Ne8 Nhg5 Rf1+ Kg2 h1R Nh2 Rf3 Bg4 Rhf1 Nh3 R1f2+ Kh1 Rg3 Bf5 R3g4 b8B+
1q3B1K/1n1Nq3/Pp1p1Q1k/3r4/1PnN1r2/B1Rq1N2/3Bq1pB/1r3q2 b - - 0 1 illegal: No possible last move
1n6/nPNb2k1/bp3B2/1p3p1q/3K2Q1/2BRRr1P/R1Rp2nB/4nr2 b - - 0 1 illegal: No extended proof kernel
k1nn2Nb/Rr1Rq2R/1b1b1b2/2B1B2n/3r1r1q/2K2bq1/4QP1P/3B1B2 b - - 0 1 illegal: No possible last move, all moves rejected
3N2rr/Pn1BN3/3q2q1/4r1Rn/1n2Q1N1/2kPKRnr/3r4/Nbq1b2R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Bb2 exf5 Bf6 f4 Bh4 Qd7 Bf2 Qd8 Bg3 fxg3 h4 Kd7 e4 Kd6 Ke2 Kc5 a4 Kd4 e5 g5 d6 f5 d7 b5 a5 c5 e6 c4 e7 g2 e8R c3 h5 c2 h6 c1N+ Kf2 g3+ Kf3 g4+ Kf4 b3 a6 b2 a7 b4 h7 b3 Rh5 Nf6 Bc4 Na2 Qe2 Na6 Re6 Bb4 Rh6 Nc5 Qf3 Nb7 Nc3 b1Q Nd1 b2 Re8 Qc1 Bb5 b1Q Nh3 g1R Qg2 Re1 Rf8 Re5 Qc6 g2 Nc3 g1R Na4 g3 Bf1 g2 Qa6 Rh1 Nc5 g1R Qc6 Rgg8 Nf2 Rh3 Ng4 Qe7 d8N Qd6 Rg6 Nh5+ Kg5 Rb8 Bb5 f4+ Rf5 f3 Ba4 f2 Nb3+ Kd3 Rg7 Ree3 Rf3 f1N Qe8 Ra8 Bd7 Nfg3 Qe7 Kc2 Qe4+ Rd3 Rg6 Ba5 Rg7 Nb4 Rg6 Re8 Rg7 Rhg8 h8N Kb2 Ng6 Re5+ Bf5 Be6 Ne7 Bc4 Rg6 Rdd5 Rg7 Bd3 Rg6 Qbc2 Rg7 Qcc6 Rg6 Bb1 Rg7 Nf6 Kf4 Nfh5+ Ke3 Qe8 Rg5 Qeg6 Bd7 Rh8 Ndc6 Rag8 Nd8 Rf5 Kf2 Rde5 d3 Kc3 Ra2 Rf7 Na1 Rfg7 Rd2 Rgh7 Ke3 Rf7 Rf1 Rf2 Rh1 Rfh2 Kf3 Rg2 Rf2 Rgh2 Rff1 Rd2 Ke3 Bb6+ Kf3 Bg1 Nf6 Bf2 Ng4 Be1 Ke3 Qge6 Rff5 Qg6 Rf3
NQn1q1N1/n7/2rrnN2/rk2P3/qq1q1B2/nb1PBR2/b4bK1/1B2B3 b - - 0 1 legal: proof: b4 d5 a4 b5 g4 h5 f4 hxg4 c3 g3 f5 g2 c4 dxc4 axb5 e6 Ra6 exf5 Ra3 f4 Rg3 fxg3 e4 Kd7 h4 a5 b6 Kc6 b7 g5 e5 f5 h5 c3 h6 a4 h7 c2 Nf3 g1Q Qe2 a3 Rh5 f4 Rh2 g4 Rh5 g2 Rh1 g3 Rh2 a2 Qc4+ Qc5 Qf7 a1N Na3 g1Q Qf5 g2 Qg5 Qe8 Qd8 Qgd4 Nh4 g1Q Rh1 f3 Bb2 c1N Nb1 Ne2 Nf5 Kb5 Ne7 Nc6 b8N Qgg4 Bc3 Be6 Na6 Bb3 Rh3 Na7 Qb8+ Qb6 Bg2 c5 Kf1 f2 Be4 c4 Rf3 Nf4 Bf5 Ne6 Nc7+ Ka4 b5 Nc2 Bb4 c3 Be4 Qbc5 b6 Na3 b7 c2 Ba5 Qh4 Kg2 c1R Bc2 Qcb4 d3 Qhe4 Nd2 f1B+ Kg3 Be2 Bb1 Ba2 Kg2 Q4c6 Ne4 Bd1 Nf6 Bdb3 Ncd5 Kb5 Nb6 Qa4 Be1 Qcc5 Nec8 Qcb4 Ne7 Nh6 Neg8 Bc5 Qc8 Rc4 b8B Nf5 Bc7 Rc1 Qb8 Ne7 Bd6 Nec8 Bf8 Qe3 Bh6 Qed4 Bf4 Rc3 Nh6 Rf8 h8B Rf7 Nhg8 Rd7 Bg7 Rd6 Nbd5+ Bb6 Bgh6 Rcc6 Qc7 Bc5 Nb6 Qdc3 Bhg5 Bf2 Be3 Qcd4 Bgf4 Rb8 Na8 Rbb6 B1d2 Ra6 Be1 Ra5 Qb8+
n5bn/b1N5/b1r1n1n1/2PQP1R1/1q1Bb3/b1N2N2/2RK1k1r/1RR2b1q b - - 0 1 illegal: No possible last move
2N4q/1bR1NPnq/2Bn3p/K5Rb/2b1NrPQ/R4nqr/3k4/1r1bN3 b - - 0 1 legal: proof: b4 c5 f4 g5 e4 f5 d4 fxe4 f5 cxd4 Bf4 Bg7 b5 Be5 b6 axb6 g3 b5 g4 b4 Be3 Bg3+ hxg3 Ra6 Bc1 Ra8 Bf4 gxf4 Kd2 Kf7 a4 Kf6 c4 Kg5 c5 e5 a5 d5 c6 b5 f6 f3 c7 d3 f7 b3 Kc3 d4+ Kb4 d2 a6 f2 a7 b2 Ne2 d3 Nf4 e3 Qa4 d1B Qb3 e2 Nh5 e1Q+ Qc3 d2 Ra2 e4 Bh3 f1B Ra3 e3 Bg2 e2 Qf3 Nd7 Ng7 Nb6 Qb7 Ne7 Bc6 Nc4 Ne8 Nf5 Rg1 Ncd6 Qb8 Ng7 Nc3 b1Q+ Ka5 b4 Qb7 b3 Na2 b2 Qb4 Bb7 Nc1 Qe4 Qd4 b1R Nf6 Qf2 Rc3 e1N Nd3 Nf3 Ne1 Bc4 Ra3 Qg8 c8N Bde2 Rg2 d1B Rg1 Rb8 a8R Qf8 Ra7 Qg6 Ne7 Re8 Nc8 Re4 Rg2 Rf4 Qe4 h6 Rg1 Qh7 Qd4 Rg8 Ne4+ Kg6 g5 Kf5 g6 Qg2 Qb6 Ke5 Qd8 Kd4 Qh4 Qh3 Nc3 Ke3 Rg2 Kd2 Rg1 Ba8 Rc7 Bb7 Rg2 Qd8 Rg1 Re8 Rg2 Re3 Ne4+ Kc1 Rg1 Qdh8 Rg2 Nh2 Rg1 Bh5 Rg2 Nf3 Rg1 Nge8 g7 Qg4 g8N Ng7 Nge7 Qh3 g4 Qg3 Rg2 Reb3 Rb2 Rc3 Rb5 Re3 Nc3 Kd2 Rg5 Re2 Na2 Rh2 Nc3 Rh3 Ne4+
k2RRBn1/7b/2K3b1/P1PpBNbn/1R3rB1/3B4/bn3br1/rbq3Q1 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 c5 b4 cxd4 Nd2 axb4 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Ra7 Ng4 hxg4 Bb5 Ra5 Bf1 Ra8 Kd2 b5 Kd3 e5 Ke4 d5+ Kd3 Kd7 h4 Kc7 c4 Kb7 a4 e4+ Kc2 b3+ Kb2 b4 g6 d3 c5 g3 f6 e3 g7 g2 h5 e2 h6 e1B f7 f3 h7 d2 Bd3 f2 Bb5 f1B Nh3 g1R Qc2 Be7 f8B Bf5 Bd3 Rg2 Nf2 Bg5 Nd1 Nd7 Rb1 Ndf6 Ne3 Nh5 Qd1 Bg6 Nf5 Bf2 Rh4 Ra5 Re4 Ka8 Re8 Be2 Qg1 d1N+ Ka1 b2+ Ka2 b3+ Ka3 Bf3 Kb4 Be4 Bf4 Ra6 Kb5 Ra7 Ra1 b1B Kc6 b2 Bb8 Ba2 Rb1 Qa5 Rd8 Qd2 a5 Qc1 Re8 Rf7 Rd8 Nh6 g8B Rf6+ Nd6 Rf4 Be6 Ng8 Bg4 Bef5 Ra1 Be4 Nf5 b1B Re8 Nb2 Rd8 Bb3 Ra4 B3a2 Rb4 Nh6 Bg7 Re8 h8R Ng8 Bf8 Bh7 Ne3 Beg6 Nf5 Re1 Bh6 Ngf6 Rhe8 Ng8 Bf8 Re3 Be4 Ra3 Bc2 Bb3 Be4 Ra1 Bd3 B3a2 Be5+
RNq2Bb1/1B2Q3/1nb5/1n3bRb/1Br1b1np/1bP5/2B2Pkq/2K1R2r b - - 0 1 legal: proof: h4 a5 b4 axb4 d4 c5 h5 cxd4 e3 d3 h6 gxh6 Qf3 h5 Qd1 h4 Kd2 f5 Rh3 d5 Nc3 d4 Rh2 Bg7 Rh1 Bf6 Ne4 Bg7 Ke1 d2+ Ke2 d3+ Kf3 Bd4 exd4 fxe4+ Kf4 Be6 Ke3 Bc8 a4 Kd7 g4 Kd6 g5 Kd5 a5 b5 g6 e5 g7 h5 c3 b3 a6 h3 a7 b2 Ne2 b1B Ra6 b4 Re6 h2 Rg1 h1B Rf6 b3 Qe1 d1B Kd2 b2 Rh6 Be6 Rgg6 Bb3 Qd1 e3+ Ke1 Ke4 d5 Kf3 d6 e4 d7 Nf6 g8R Ng4 Bh3 d2+ Kf1 Qc8 d8B Nd7 Re8 Nb6 Qe1 d1B Bh4 Bg8 Be7 h4 Ng3 e2+ Kg1 e3 Bb4 Bb1c2 Nf5 b1B Bca3 Be4 Ne7 Rh7 Nc6 Rc7 Nb8 Rc4 Rd8 Bf5 Rg7 Bbe4 Rg5 Bc6 Re6 Bg2 Qd2 e1N Qd7 Nc2 Qe7 Nd4 Re8 Bh1 Kf1 e2+ Ke1 Nb5 Kd2 e1Q+ Kc1 Qg1 Re1 Qh2 Bf1 Bce4 Bd3 Kg2 Bc2 Bdf3 Na6 Rb8 a8B Rb7 Nb8 Rd7 Kb2 Rd1 Bb7 Bc6 Re3 Rf1 Re1 B3e4 Rd8 Be8 Kc1 Bh5 Rf8 Kg1 Qh7 Qd8 Bc5 Beg2 Na6 Bc6 Bab4 Bhe4 Be7 Qd7 Ra8 Qc8 Nb8 Kg2 Bf8 Rh1 Qe7
3qn3/qnN1N1R1/2RqNn2/1r2qbPp/2P2R1K/q1k4b/2Q4R/1r1B3q b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 a5 Bb2 axb4 Kd2 Be7 Bc1 f3 g6 Bg5+ hxg5 f2 Kd3 Na6 Bf4 exf4 Kd2 Nb8 c4 Ke7 e4 Ke6 Ke2 Ke5 Kf3 f5 a4 d5 g7 b5 a5 h5 a6 b3 a7 d3 Bg2 Kd4 e5 f1B e6 b4 e7 b2 e8R d2 Rh4 b3 Bh1 Bh3 Re5 Nc6 Ra6 Rb8 a8R Rb5 Ra4 Na5 Qc1 d1N Ra7 Nc3 Re6 Nb7 Ra1 Ne4 R7a3 Ngf6 g8N Ned6 R1a2 Nde8 Nc3 b1Q Rd6 b2 Qd1+ Qd3+ Kf2 b1Q Ra4 Qa1 Be4 f3 Kg3 f2+ Bf3+ f4+ Kh2 f1Q Raa6 Qe1 Rb2 Bcf5 Rd7 Qe5 Rc6 Qa7 Ne7 Rg8 Be4 f3+ Rf4 f2 Qc2 f1Q Ra2 Qa1 Bf3+ Qde4 Rb2 Q1a3 Kg3 Rf8 Bd1 Qed6 Qb3 Kd3 Rdc7 d4 Rh2 Qee5 Nge2 Kd2 Qa4 d3 Kh4 Rh8 Ncd5 Rg8 Nb6 Rf8 Nd4+ Kc3 Na8 d2 Ne6 Rf7 Bb3 d1Q Rd7 Rg7 Nac7 Qh1 Bd1 Rf7 Nc8 Rf8 Rg7 Rf7 Na8 Rc7 Ne7 Rc8 Nac7 Rb8 Qc2+ Kb4 Qa2 Nc5 Na8 R5b7 Ng6 Kc3 Qe2 Rb1 Nac7 R8b5 Ne7 Nb7 Qc2+
bb1N1K2/QN2rPnB/1nBk4/1b2p1P1/8/2BBr1nr/1q1r2b1/b1R2N2 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 e5 axb5 g5 h4 gxh4 d4 cxd4 Ra6 f6 Rd6 d3 Rd4 Ke7 Qe2 exd4 e5 Kf7 e6+ Ke8 Qe5 fxe5 Kd2 Ke7 c4 a5 f4 d5 g4 h5 c5 a4 f5 a3 c6 h3 b6 h4 b5 h2 c7 h3 b7 a2 b6 a1B g5 Nh6 Nc3 Ra7 Na2 Bd7 c8B Bb5 Nc3 Nd7 b8N Ra3 b7 Nb6 Ke1 d2+ Kf2 d1B Kg3 d3 Kh4 d2 Nf3 d4 Kh5 d3 Kg6 Qd4 Ne4 Qb2 Nd6 Rc3 Rg1 h1N Nh2 Ng3 Bd7 Bf3 f6+ Kd8 f7 Kc7 e7 d1R e8B d2 Nc6 Nhf5 Be6 Re3 Nd8 Bd5 Kf6 Ng7 Bf5 Rh4 Bh7 Bdc6 Ne4 Bd6 Nc5 Bf3 Be2 Bd5 Re1 Be4 Nf1 h2 Bc6 Bg2 Bc4 Rh3 Be2 Qa2 Bb2 Qa3 Bd4 Qb2 Be8 Rc1 Bed3 d1R Bd7 Rc4 Bc3 Rd2 Rc1 Ra4 Bc6 Ra7 Nb3 Qa2 Na5 Qb2 Bce4 Kd7 b8Q Bc7 Ba8 Kd6 Bc6 Rb7 Qa8 Bb8 Qa7 Rc7 Bd7 Ba8 Be8 h1B Bc6 Bg2 Kg6 Ne6 Kf6 Re7 Kg6 Nf4+ Kg7 Nfh5+ Kf8 Ng7 Nab7+
5R2/4rBNq/R4nB1/nb2QK1B/rq1B2n1/n2n2R1/P1p1q1P1/1qk1b3 b - - 0 1 legal: proof: c4 e5 b4 a5 f4 axb4 h4 exf4 c5 g5 hxg5 b3 d3 b2 Be3 d6 Nd2 dxc5 Rc1 c4 Rc2 b1Q Nb3 Qc1 Na1 Qxa1 Kd2 Kd7 g6 Ke6 d4 Kf5 g7 Ke4 d5 b5 d6 h5 d7 f5 Nf3 c5 Qb1 c3+ Kd1 c4 Bc5 b4 e3 b3 Ke2 b2 Bd4 h4 Ne5 h3 Qe1 b1N Nd3 h2 Qf2 f3+ Kd1 f4 Bc5 Qe7 d8R Ra4 Nb2 Nf6 g8B Na3+ Rc1 c2+ Kd2 c3+ Ke1 Qb1 Nd1 Ba6 Qe2 Bb5 Kf2 Nc6 Ra8 Na5 Bf7 Rh7 Bd4 Qeb4 Ra6 Bh6 Rg1 h1Q Qe1 Bf8 Be2 Rg7 Rf1 Qh7 Bb3 Re7 Bf7 Qa1 Rb1 c1N Rb3 c2 Qc3 Qb1 Qc7 Kf5 e4+ Kg4 e5 Nd3+ Kg1 Kf5 e6 Ke4 Ne3 Bh6 Kh2 f2 Kh3 f3 Nf5 Bd2+ Kg3 Bc3 Ng7 Be1 Bc3 Ke3 Bd4+ Kd2 Qe5 Kc1 Bg6 Nh5+ Kg4 Nf6+ Kg5 N3c4 Kf5 Na3 Rh1 f1Q Rh2 f2 Bh5 Rc7 e7 Qe2 e8B f1N Bf7 Re7 Rh1 Nh2 Rf1 Nhg4 Rc3 Qg8 Rf3 Qh8 Rg3 Qg8 Rc8 Qh7 Rf8
2B1n2r/6pr/q2q4/R3N2P/bb2B3/1PQ1K1b1/BnrRnRr1/B5nk b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 g3 f6 g2 Nd2 exf6 Ne4 f5 Ng3 f4 Be3 fxg3 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 c4 Kf6 h4 Ke5 e4 Kf4 b6 f5 h5 a5 c5 d5 e5 a4 b7 d3 c6 d4 c7 a3 e6 a2 b3 Nf6 e7 Bd7 c8B Ba4 e8B Rh7 Bb5 Nc6 b8R Qd6 Rb6 Ne8 Rb1 a1B Nf3 g1R Ba3 g2 Ne5 Kg3 Nf3 f4 Ng5 f3 Rc1 f2 Be2 f1Q Rb1 Qff6 Kc1 d2+ Kc2 Rb8 Qc1 d1N Kd2 d3 Rh2 Nd4 Qc3 Nb2 Ke3 d2 Bc6 d1R Be4 Rd2 Ra6 Rc2 B2d3 Ne2 Ra5 Qa6 Rf1 Bb4 Rf2 Qfd6 Nf7 Ra8 Rh4 Rb8 Rg4+ Kh2 Ne5 Kh1 Rgf4 Rf1 R4f3 g1N Rg2 Rfc1 Rff2 Rd2 Bb1 Rcc2 Nd7 Rd5 Ba2 Rg5 Ne5 Rg4 Rf7 Rg6 Rgf2+ Rg2 Rd7 Nf6 Bcb7 Rbh8 Bc8 Ne8 Rd8 Qdb6+ Rd4 Qd6 Rd2 Nd3 Nf7 Qa8 Qc4 Be5 Qc3 Qaa6 Bb2 Bg3 Ba1 Nb2 Ne5
2NNq2b/nRPn4/KRB2q1r/5b1b/2r2R2/Q4p2/3rPk1b/2N1nNn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 Ke4 h4 Ke3 c3 g5 b6 d5+ Kb5 f5 h5 a5 b7 a4 h6 f4 h7 a3 c4 a2 c5 d3 c6 d4 c7 d2 Rh2 g2 Na3 g3 Qc1 g4 Rh6 d3 Rd6 Bg7 Qc6 d1B Rh6 d2 Nb1 Bc2 Na3 d1R Qa6 Nc6 b8N Nf6 Nh3 g1B Nb1 g2 Nd2 g3 Nf2 Qe8 Nd3 Bg4 Qa3 Ra4 Nd7 Bh5 Nb6 Nd7 Nc8 Bh2 Rc1 g1Q Bg2 a1N Bh1 Bb1 Rc4 Qf1 Nc1+ Bc3 Be4 g2 Rd6 Qf3 Nf1+ Kf2 Bd5 g1N Rd4 Na5 Ka6 Nc2 b5 Rc4 b6 Rd2 b7 Nc6 b8R Ne1 Rb7 Na7 Rdb6 Bb2 Be4 Qc3 Bf3 Bf5 Bc6 f3 Rf4 Qg7 Ba4 Qge7 Bc6 Bg7 Qa4 Qf6 Qa3 Rg8 h8N Rf8 Ng6 Rh8 Ne5 Rh6 Nf7 Bh8 Nd8
1R1rrB1N/rbbN4/k3B3/nq5q/Pq2rpbN/2QB4/P7/K1N2b1r b - - 0 1 legal: proof: h4 c5 f4 g5 d4 cxd4 f5 gxh4 f6 a5 b3 a4 Nd2 a3 Rh2 Na6 Rh1 Nc5 Rb1 Na4 Rb2 axb2 bxa4 exf6 Nh3 f5 Ng1 f4 c4 b1Q g4 d5 e4 Kd7 c5 Kc6 g5 f5 e5 h5 e6 b5 e7 Kb7 e8B f3 g6 d3 g7 d4 c6+ Ka6 c7 f4 Ba3 h3 Qc1 b4 Kd1 f2 Rh2 b3 Rg2 b2 Ne4 h2 Bd6 h1Q Rg3 h4 Rg6 h3 Nf6 h2 Nh3 Qd7 Rh6 Bb7 c8N Qb5 Bh5 d2 Bg4 Ra7 Nd7 Ne7 g8N Nc6 Be6 Na5 Nce7 Qf3+ Be2 f1B Nf2 h1R Nd3 Qfh5 Nf5 Bg7 Bc5 Be5 Nge7 Re8 Ng6 Bc7 Nfh4 Qb4 Bf8 Qbb5 Ne1 Qe4 Nd3 b1R Kc2 d1R Rh8 Rb4 Qb2 Rd2+ Kb1 Rc4 Ka1 Rd1+ Nc1 d3 Bh6 d2 Bf8 Qd4 Bh3 Qdb6 Be6 Re4 Rg8 Qbc5 Nh8 Qb4 N4g6 Rd8 Qe5 Re1 Qc3 d1B Bd3 Bg4 Nh4 R1e2 Bec4 Ree8 Be6 Re4 Rg5 Bd6 Rc5 Be5 Rc8 Bc7 Rb8
bq4k1/4bR2/2N2R2/4Q1N1/P1bnP1qq/r1B1R1q1/1nn1pNR1/1n4Kn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 h5 dxe4 h6 c5 Be2 c4 Bf3 gxh6 Be2 h5 Bg4 h4 Be6 Bg7 Bd7+ Kf8 Ba4 Bh6 Bb3 Ke8 Qe2 Bg7 Qd1 Bf8 f3 cxb3 Kf2 e3+ Kf1 e2+ Ke1 Na6 Kf2 Nb8 Nh3 e5 Qg1 b5 Qd1 e4 Ng1 Ra6 Ke3 Re6 Kf4 e3 Kg4 Qe7 Kf4 Re4+ fxe4 Qd6+ Kf3 Qd8 d4 e1N+ Ke2 h5 Kf1 f5 a4 Kf7 g4 f4 c4 b2 c5 h3 c6 f3 g5 h4 d5 h2 d6 f2 d7 b3 c7 b4 Nd2 b1Q Ne2 b2 Nf4 h3 Ne6 b3 Qf3+ Nf6 g6+ Kg8 g7 Qd3+ Qe2 b1Q Nf3 b2 Nc5 Be7 Nb7 Nh5 Ng1 Nc2 Nc5 Nc6 Ra3 Nf4 Rc3 Bb7 c8R N6d4 Rc6 Qc8 d8N Ba8 Nf3 Qg4 Rf6 Rh6 Rg1 h1Q Ng5 h2 Nc6 Rh3 Ra3 Qb3 Qb5 Nd3 Qa5 Rg3 Qc7 Qb8 Qe5 Qa2 Bd2 b1N Bc3 Qab3 Rf7 Nb2 Nd3 Rh3 Qe6 Qbg3 Qe5 Qb8 Rb3 Qhf3 Rg2 h1N Rb6 Q3h4 Rg3 Qff4 Kg2 f1B+ Kg1 Be2 Nf2 Bc4 Rg2 e2 Rb3 Bd8 Rf6 Rg3 Rb7 Rd3 Rbf7 Be7 Rg3 Qgh3 Re3 Qff5 Ba5 Ra3 Bc3 Qfg4+ Rg3 Qd7 Ne6 Kh7 Re3 Qf3 Rf8 Qff4 g8R Qdc8 Rg2 Qfg3 R8f7+ Kg8 Ng5 Qe6 Rh7 Qeg4 Rhf7
R2b1Kbr/6PP/B2B1QqN/3rq1q1/k1p3bR/1n2RrBb/5q2/1q5R b - - 0 1 legal: proof: f4 d5 e4 a5 g4 g5 d4 h6 b4 axb4 c4 dxc4 d5 Nd7 Nd2 Ndf6 d6 Nd5 exd5 gxf4 Ne4 h5 g5 Ra5 Nf2 Ra8 Ng4 hxg4 Kd2 c3+ Kd3 Kd7 Ke4 e5 Kf5 b5 h4 c5 a4 g3 a5 b3 a6 b2 a7 b1B+ Bd3 c4 g6 g2 h5 f3 g7 b4 h6 b3 Bg5 f2 Ra5 f1R+ Qf3 c2 Rh4 c1Q Bc2 e4 Ne2 g1Q Ra1 e3 Bf6 b2 Be4 Qb6 Bc3 Ne7+ Kf6 Nc6 Nd4 e2 Nb5 e1Q Na3 Nd4 Bd2 Nb3 Bf4 Bc2 Nb5 Be7+ Kf5 Bd1 h7 Qg6+ Ke5 f5 Bg3 f4 Nd4 Bb7 Nf5 Rad8 a8R Qc7 Qc3 f3 Nh6 f2 Qf3 Qee3 Qf6 Bg4 Rb1 Qc2 Re1 Qec5 Re3 b1Q Bf3 Re1 Bg2 f1B Be4 Bfh3 Bf5+ Ke8 Bc8 Bc6 Bb7 Rf1 Ba6 Rf5+ Ke6 Qf2 Re4 Qce3 Re5 Qeg5 Re3 Rb8 d7+ Kd8 Bc8 Rb5 Ba6+ Qb8 Bc8 Qbf4 Ba6+ Kc7 d8R Kb6 d6 Ka5 d7 Kb4 Re1 Ra5 Re8 Bd8 Rh1 Ka4 Re7 Q4e3+ Kd6 Qc3 Re3 Qcb2 Ke6 Rf3+ Kd6 Raf5 Ke6 Bd5+ Kd6 Bb6 Ke7 Bg8 d8B Rd5 Bdc7 Qbe5+ Kf8 Ba5 Bb8 Bd8 Bd6
4rq1N/Bn3P2/7P/2nKBr1q/p5b1/R1pbN2k/r1B2QN1/b2n1Nq1 b - - 0 1 legal: proof: b4 d5 a4 b5 g4 h5 e4 hxg4 c3 f5 Ra3 fxe4 c4 dxc4 Rb3 cxb3 axb5 Qd7 Ke2 Qd4 Ke1 Qd8 Ke2 Kd7 Ke3 Ke6 f4 Kf5 d4 g5 h4 c5 d5 e5 h5 a5 b6 b2 h6 c4 b5 g3 d6 g2 d7 g4 b7 g3 b6 Nf6 Qa4 Kg4 f5 Nd5+ Ke2 e3 f6 e4 f7 Bg7 Qc2 Re8 Nc3 b1B Rh5 Na6 b8B Nc5 Ba7 Nb7 Nf3 g1Q Nd1 g2 Bb2 Qh2 Nd2 g1Q+ Bg2 Re5 Rh3 Rf5 Nf1 Qf8 d8N a4 Rf3 Qh5 Be5 Bf6 Ne6 Nc3+ Ke1 e2 Kd2 e1R Nde3+ Kh4 Nf4 Nd1 Qa2 Bd3 Rg3 Nf2 Kc3 Nd1+ Kd4 Re2 Kd5 Bd7 Qd2 Re8 Qe1 Ra2 Qf2 Rg5 Bh1 Bg4 Bg2 Rf5 Bf3 Nd6 b7 Bg7 b8N Nb7 Nd7 Bh8 Nc2 e3 Be4 e2 Nce3 e1N Rf3+ Qg3 Nfg2+ Kh3 Nb6 Bf6 Nc8 Bg7 Ne7 Bf6 Rf4 Qh2 Ng6 Qg1 Nh8 Bg7 Kc6 Bf6 Beb8 Ba1 Be5 c3 Kd5 Bde2 Bc2 Nd3 Rb4 Ndc5 Rb3 Bd3 Ra3
1qrB1QK1/Nr1b4/r2p2n1/B1RPpR2/4R2r/1qRbbB1P/4r3/3n2k1 b - - 0 1 legal: proof: b4 b5 f4 f5 e4 fxe4 g4 h5 Nc3 g5 Nd5 c5 Ne3 gxf4 g5 cxb4 a4 Ba6 axb5 Bc8 Ng4 hxg4 Ke2 Kf7 d4 Ke6 c4 Kf5 h3 a5 c5 e5 d5 g3 c6 d6 b6 b3 g6 a4 c7 b2 g7 b1R b7 f3+ Ke3 a3 Qe2 g2 Qa2 f2 Bd2 Nc6 b8B Nb4 Be1 Bd7 c8R Nc2+ Ke2 Kf4 Ba5 Kg3 Rc7 e3 Kd3 e2 Ke4 e1R+ Be2 f1B Rc5 Kf2 Nf3 g1Q Bbc7 Rc8 Nd4 Qg3 Nc6 Ne7 g8R Rh4+ Rg4 Rb7 Rc1 Qb3 Na7 Ne3 R1c3 Ng6 Bf3+ Re2 Qb1 Qe8 Bd8 a2 Qc2 a1R Rf4 Rh5 Rf5 Bh6 Rg1 Qf8 Rg4 Rh4 Rgf4 Kg1 Qd3 Bg5 Qb5 Be6 Qe8 Bd7 Qe7 Qg8 Qf8 Nd1+ Re3 Qf7 Bd2 Re1 Rf6 Bc6 Kf5 Qc7 Ke6 Ra6 Ba5 Bd7+ Kf7 Qb8 Rec3 Bd3 Re4 Re2 Rf5 Be3 Kg8
1Rn1rb2/1NkbnK1p/1b4R1/4qN2/b1n2qPB/1r4bp/P5RQ/4N1R1 b - - 0 1 legal: proof: c4 e5 f4 exf4 b4 d5 cxd5 g5 h4 gxh4 e3 a5 Ba6 axb4 Bd3 b3 Bc2 bxc2 Ke2 Kd7 Kd3 c5 Ke4 f5+ Ke5 b5 d4 b4 g4 b3 e4 h3 d6 c4 d5 c3 Qd4 b2 Nd2 b1N Qd3 f3 Nc4 f4 Nb2 f2 Bd2 f1B Bc1 f3 Bh6 c1B Nd1 f2 Qe2 c2 Rh2 Ra3 Ne3 Rb3 Nf3 Qa5 Bg5 Bh6 Bh4 Na3 Nf5 Bg2 Qd2 f1Q Qe2 Bce3 Qf2 Qe2 Rg1 c1B Ne1 Qa4 Qg3 Bf1 Rhg2 Bf2 Qh2 Bce3 Bg3 Kd8 d7 Kc7 d8N Nd7+ Ke6+ Bef4 Bh4 Be3 e5 Bg3 Kf7 Nb6 e6 Qf4 e7 Be6+ Ke8 Nc8 Rf2 Qb2 Rfg2 Qbe5 d6+ Kb6 d7 Bb5 Nf7 Nc4 N7d6 Kc6 d8R Ba4 Rd7 Bb6 Rb7 Bg7 Rb8 Bd7+ Kf7 Kc7 e8R Bh6 Re6 Nge7 Rg6 Re8 Nb7 Bg7 Na5 Bf8 Nb7
N5b1/p5rq/2n1nB1n/PK3N2/N1N1pbqq/7R/qR1qP2Q/2krR3 b - - 0 1 legal: proof: c4 c5 g4 h5 b4 hxg4 b5 d5 b6 dxc4 Nh3 f5 Ng1 g3 Bh3 g2 Bg4 Qxb6 Qc2 Qd8 Qd1 b5 Na3 b4 Nb1 b3 Qxb3 fxg4 Qd1 Bf5 Qc2 Be6 Qd1 Bc8 d4 Kf7 Kd2 Ke6 Kc3 Kf5 h4 Ke4 a4 g5 f4 e5 f5 g3 d5 g4 h5 Bh6 d6 Qh4 f6 Bf4 a5 Nc6 h6 Rh7 f7 Rg7 f8R Be6 d7 Rd8 h7 Nh6 h8N Bg8 Nd2+ Ke3 Rh2 e4 Ngf3 g1Q Ne1 g2 Ra4 g3 Rf6 Qh1 Ra1 g1N Bb2 g2 Nd3 Nf3 Rh3 g1Q Nf7 Qgg4 Nd6 Qh2 Qf1 Qh1 Qg2 Qh2 Kc2 c3 Re1 c4 Nc5 Qh1 Na4 Qh2 Kb1 c2+ Ka2 c1Q Ka3 c3 Rg6 Qh1 Qh2 c2 Rg5 Qd1 Rb5 Qb1 Bf6 c1Q+ Rb2 Qcc2 Nc3 Qcc1 Ka4 Qa2+ Kb5 Qc2 Na4 Qd1 Nb1 Qc2 Na3 Kd2 Nf5 Ng5 Be5 Ne6 Bf6 Ra8 d8N Rc8 Nb7 Rd8 Nb6 Rd4 Na8 Rd8 Rbb1 Qd1 Rb2+ Kc1 Nc5 Rd6 Rf1 Qde1 Nc4 Rd1 Na4 Qd2 Bd8 Qhf3 Rh1 Qfa3 Rf1 Qae7 Re1 Qf7 Be7 Qfg6 Bg5 Qh7 Bf6
2qk1b2/2Qr1Bq1/rNq3N1/r1n1P2b/pn5n/3Pp3/2R1r1RN/2N2RK1 b - - 0 1 legal: proof: e4 b5 a4 e5 h4 g5 b3 gxh4 Ba3 d6 Bc5 d5 c4 dxc4 f4 exf4 Be3 fxe3 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 g4 f5 g5 c5 g6 h5 b4 a5 g7 f4 e5 a4 b6 h3 b7 c3 b5 f3 b6 h2 d3 c2 Ne2 c1Q Nd2 c4 Ra3 h4 Bg2 f2+ Kf1 c3 Be4 c2 Nc3 h3 Bf3 Ra5 Bc6+ Qd7 Nb5 Ne7 g8R Rh6 Rb3 Ng6 Rb2 Na6 b8N Nh4 b7 Nc5 Nf3 Kd8 Nc3 Qg7 Bd5 Bg4 Ne2 Bh5 Nd7 Rha6 Rg1 h1Q b8N h2 Bf7 Nb7 Nb6 Nc5 Ng5 Qc6 Nf3 h1R N8d7 Rh3 Nh2 Rg3 Rg2 Rg4 Rh8 Rd4 Rh6 Qc8 Rf6 Qc6 Nc8 Rd6 Ndb6 Rd7 Ne7 Qc8 Ng6 Qc6 Nc3 Qc8 Rf3 Qc6 Na2 Qc8 Ke2 f1R Qd2 Rd1 Qe1 Qc6 Kf1 Rd2 Kg1 Re2 Qd1 Qd2 Rf1 c1N Rc2 Qc3 Qe1 Qc4 Qc3 Q4e6 Nb4 Na2 Qc4 Qc8 Qc3 Qec6 Qc4 Nc3 Na2 Nd5 Nc1 Nb4 Qe4 Qb5 Qb7 Qbc6 Qc7+
4n3/5B1q/1N1QR1RP/3R1p2/BBq1r3/Bbr1b2P/bKn1pqk1/2n4q b - - 0 1 legal: proof: e4 c5 g4 a5 d4 cxd4 b4 h5 gxh5 axb4 f4 Nf6 e5 Ng8 e6 fxe6 f5 Ra3 Bd2 Ra4 Bc1 Ra8 f6 Nh6 Na3 Ng8 Nc4 Rh6 Ne3 Rh8 Nf5 exf5 Kd2 Kf7 a4 Ke6 c4 Ke5 Kc2 Ke4 c5 b5 a5 g5 h6 d5 h3 e5 a6 d3+ Kb2 b3 c6 d2 f7 b4 c7 d4 a7 g4 Ra5 d3 Rh2 g3 Rc5 g2 Rd5 Qe7 Rc5 Nc6 Rh1 Nf6 Ne2 Kf3 Rc3 g1Q Rc5 e4 Rc4 e3 Rd4 Ne8 Ng3+ e2 Kb1 b2 Rh2 Na5 Rd5 Qf2 Nh1 Nb3 Rc5 Be6 Rd5 Rc8 a8B Qd7 Ka2 b1N Rg2 Na3 Rg6 Nc2 Kb2 Bc5 f8B Be3 Rf6 Qh7 Ng3 Rg8 Bd6 Rg4 Bc6 Re4 Ba4 Bf7 Nh5 Bg8 Qe1 d1Q Nf4 d2 Bg2+ Kg3 Qg1 Qdf1 Be7 d1Q Bd2 Nc1 Qh2+ Kh4 Bh1 b3 Bdb4 Qd3 Ba3 Be6 Beb4 Qc4 Bf3 Q1e1 Bh5 Bg8 Bf7 Qh1 Kb1 b2 Re6 Rb8 c8R Ra8 Rcc6 Rc8 Rf6 Rc7 Rce6 Rc5 Qg1 Rc8 Qd1 Kg3 Rd2 Kf3 Nd5 Kg2 Nb6 Qd5 Be7 Rc3 Beb4 Qc4 Rdd6 Nb3 Ka2 b1B+ Kb2 Nc1 Rd5 Ba2 Qd4 Bb3 Qe5 Ba2 Qd6 Qc5 Rd3 Qh4 Bh5 Bd4 Re7 Be3 Rd1 Bge6 Bf7 Qf2 Rd4 Bec4 Rd5 Bcb3 Ree6 Qc4 Rg6+
R1B1NK2/1rP2Pp1/R3R2b/1k2r2n/2b2p2/Nr2n1R1/2bq1bQ1/Nq1q4 b - - 0 1 illegal: No possible last move
6QB/1kbp4/n2BN1K1/1q1Prn2/p2b2P1/Nr1nNB2/2n2nn1/3BbR2 b - - 0 1 legal: proof: e4 b5 b4 c5 f4 cxb4 a4 bxa4 e5 g5 e6 fxe6 Nh3 e5 Ng1 e4 g4 Kf7 f5 Nf6 Ra3 Qe8 Rf3 Qd8 Rf2 Ba6 Rf4 gxf4 h3 Be2 g5 Bg4 hxg4 Ng8 Ke2 Ke8 Kf2 Nc6 Ke1 Nb8 Ke2 e5 c4 h5 d4 a5 d5 b3 f6 e3 Kf3 e2 Ke4 e1N Kf5 f3 c5 b2 g6 e4 g7 h4 c6 h3 c7 e3 c8N a3 Nd2 b1N Na7 a4 Bb2 f2 Bc3 h2 Bb4 e2 Qc2 a2 Ba5 a1B Qb3 Na6 Qc2 Rb8 Bh3 f1N Nc4 Ne3+ Kg6 Nh6 g8B Bd6 Bh7 Rb3 Bg2 Qb6 f7+ Kd8 f8B Kc7 Bf3 Na3 Nh3 Bd4 Bc3 Kb7 Nb5 N3g2 Ne3 Nd3 Rf1 e1B Nf4 h1N Ne6 Bc7 Bd6 Nf5 Qd2 Nc2 Na3 Re8 Qc1 Bc5 Bh8 Nhf2 Qb2 Qb4 Qg7 Bd4 Qg8 Qb5 Kf7 Nfh4 Bhe4 Nf5 Bd1 Re7+ Kg6 Re8 Bef3 Re7 Nf4 Re5 Ne6
2Nn2K1/2Qn3B/N1Bb4/k1PB4/3pb3/b1r4b/nPRq1pN1/nb1r1N2 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 g5 b5 axb5 f3 Ra6 h6 Rf6 gxf6 g6 f5 Bg5 hxg5 Bg2 f4 Bh3 Rh7 Bf1 Rh8 Kf2 d5 h4 Kd7 e4 Kc7 c4 Kb6 g7 a5 h5 f5 h6 a4 e5 a3 h7 g4 e6 a2 e7 a1N e8B g3+ Ke1 g2 Kd2 d3 Kc3 f2 Kd4 d2 Ke5 f3 Qe2 d1N Rh2 f4 Na3 Nh6 g8B Bb7 Ke6 Nd7 Qd2 Nf7 Ne2 g1B Qc2 Bd6 Ng3 Rc8 Bg2 Ka5 b6 f1B Nb5 f2 Na7 Bd3 Nf1 f3 Qc1 Rc6 Nc8 Nc3 Qf4 Ba8 b7 Na2 b8N Bb1 Na6 Qg5 Qg3 Qd2 Qe5 Ba3+ Qd6 d4 c5 Rb6 Ke7 Bae4 Qc7 Nd8 Bd5 Rg8 h8N Rg5 Bg6 Rg3 Qb8 Rb3 Bh7 Rc3 Ng6 Rc1 Bh1 Rd1 Nh4 Rh3 Rg2 Bh2 Qb7 Bd6+ Ke8 Ne6 Kf7 Nd8+ Kg8 Bec2 Ng3 f1B Qc6 Be4 Qc7+ Nb6 Re2 f2 Bc6 Bfg2 Nf1 Rc3 Bd5 Bh3 Bc6 Bed3 Bhd5 Bdc2 Ng2 Be4 Qa7 Nd7 Qb8 Qe3 Rc2 Qd2 Qc7+
4r1nR/3b1p1q/2NB4/1Pr1nB1p/r2b1kBR/2n3b1/R2P1R2/1b2Qn1K b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 Kf2 Kd7 e4 Kd6 g4 Ke5 Kg2 c5 g5 h5 b7 f3+ Kh2 f2 g6 b3 g7 b2 Nf3+ Kf4 e5 b1B e6 h3 e7 c3 e8R c2 Re6 c4 Qe2 c3 Rc6 Nd7 b8R Bd6 Nd4 Ne5 Rb7 Ra4 Nf3 Bd7 Ba3 c1B Rb8 c2 Nd4 Bb2 Ra2 c1N Qe1 Ne2 Rcb6 Bc3 Nc6 Bd4 Ra8 Bc7 Bd6 Nc3 Be2 Qg5 Bd1 Qh6 Bg4 Qh7 Rba6 Bb8 Rf1 Bc7 Kh1 h2 Re8 Nh6 Rd8 Re8 g8B Bb8 Rg1 f1N Rg2 Qe4 Bh7 Ng8 Ra5 Qg6 Re2 Qg7 Bhf5 Qh7 Kg2 h1R Ra8 Rc4 R8a4 Rc5 Rb4 Rh3 Rc4 Re3 Kh1 Re4 Rh2 Bf2 Rd4 Bg3 Rh4 Ba7 Rd3 Ra4 Rf3+ Kg5 Rf2 Bb6 Rfh2 Kf4 Re2 Ba7 Rf2+ Kg5 Nb8 Ne7 Kg2 Rg8 Rh3 Rc7 Qd1 Bd4 Rh4 Rc5 Qe1 Rh8 Kh1 Rf8 Rg2 Kf4 Nc6 Rg8 Rc8 Rh8 Rc7 Rb8 Rc8 Rba8 Rf8 Re8 Rh8 Ng8 Rf2+
B5bK/4qPPp/1r3Q2/r4r2/np2B2R/1kBR1qrb/2q1nqBN/7R b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 axb4 e5 cxd4 e6 fxe6 Ke2 e5 Ke1 e4 g4 Nf6 h4 Nd5 f5 Nc6 Nc3 Ne5 Nce2 Nc6 Nf4 gxf4 g5 Nf6 g6 Nb8 Nh3 Bh6 Ng1 Bg5 hxg5 Ng8 Kf2 b3 c4 e5 a4 Ke7 a5 Kd6 a6 Kc5 g7 Kb4 g6 d5 c5 b5 a7 d3 c6 f3 Kg3 b2 Kg4 b1B Kh5 e3 c7 d2 f6 d4 Bh3 d3 Qf1 d1Q Bg4 f2 Qh3 f1R Qh2 d2 Ne2 e4 Bd7 Ne7 g8B Ba2 Kh6 Nec6 Kg7 Qe7+ Bf7 Na6 Bf5 Rg8+ Kh6 Nc5 Qg2 Qc2 Rh4 d1Q Qf3 Na4 B7e6 Nd4 Bd5 Rg7 Bb7 Bg8 Ng3 Kb3 Bd2 b4 Bc3 e2 Bc6 Rf2 Nf1 e1R Nh2 e3 Bb7 Bd7 c8R e2 Rd8 Rg1 Qf4 Rg3 Bg2 e1Q Bfe4 Bh3 Qf5 Rb8 a8B Rb6 Rc1 Qe3+ Qf4 Qg4 Rh1 Ne2 Rd3 Rf7 Qg5 Rf4 Qe5 Qf2 Qg5 Rf8 Qe5 Rd8 f7 Qgf3 Kg7 Rf5 Qf6 Rdd5 Kh8 Ra5 g7
b1R4N/4rb1b/r7/P1Q1b1Nq/3pBk2/1b1q2p1/1BP2N1n/rN1q1B1K b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 a4 Nc6 Ra3 h6 Rc3 Nce7 Rc5 h5 Rg5 Nf5 gxf5 Ke7 Rg6 Ke8 Rg4 hxg4 Kf2 Ke7 h4 Kf6 e4 Ke5 f6 d5 h5 g5 h6 b5 h7 b3 a5 b2 f7 b4 Bb5 d3 Nh3 d2 Kg1 f2+ Kh2 f1Q Be8 b3 Ba4 f3 Qe2 d1Q Be3 d4 Bd2 f2 Bd7 Qe8 Bc1 Bg7 f8N Ra6 Ba4 Qh5 Bd7 Nf6 Bf5 Bb7 Bd7 Ba8 Qd2 Qd3 Qe3 f1B Qe1 g3+ Kg1 g4 Qb4 g2 Na3 b1B Nf2 b2 Bb5 Ba2 Ne6 b1B Bb2 Bb3 Ng5 Re8 h8N Kf4 e5 Re7 Qc5 B1a2 Nb1 Bf7 e6 Bb3 Rh4 Be2+ Kh2 g1R Bc6 Re1 Be4 Bf1 Rh3 g3+ Kh1 Ng4 Rh4 Be5 Rh2 Rea7 e7 Rc7 e8B Re7 Rh3 Nh2 Bb5 Be2+ Kg2 Bg4 Bc4 Bf5 Bb5 Q3d2 Bf1 Bh7 Kh1 Qd3 Rh4+ Qhg4 Rh6 Qh5 Rc6 Qdg4 Nc3 Ra1 Rc8 Qgd1 Nb1
8/1q1pPQPK/1n4rR/N2BqN2/1p3k1q/2qRn2R/1bN2q1n/1b1R3b b - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 b4 axb4 f4 exf4 d5 f3 g5 f2+ Kd2 c6 Bb2 cxd5 Bf6 gxf6 Rh2 f5 Rh1 Ra6 h5 Rg6 hxg6 d4 Rh3 f4 Rh6 Bg7 Rh1 Bf8 Kd3 b3 Ke4 Ke7 Kf5 Kd6 e4 h5 a4 f3 c4 h4 a5 d3 a6 h3 a7 d2 a8N h2 g7 b4 g6 b2 Bh3 f1N Bg4 f2 Nb6 Nf6 g8R Bb7 Nf3 Nc6 Qe2 d1Q Na4 Qd4 Bh3 Na7 Na3 Nc8 Rd1 b1B Nh4 Nb6 Qh5 Rh6 Nc2 Nfd5 Nb2 Bg7 Rh8 f6 Bg2 Nde3+ Kf4 f5 c5+ Ke6 c6 Qe8 Kg5 Ke5 c7 f4 c8R f3 Nf5 Bc6 Kh4 Kf4 Nc4 Qc5 Rh7 Bb2 g7 Rd6 Qf7 Rg6 Na5 Bb7 Rc6 Qc3 Kh5 Qe7 e5 Qd6 e6 Qde5 Rcd6 Bc6 Rg1 h1Q+ Bh3 Qg2 e7 Qg3 Rg2 Nh2 R6d5 f1Q R5d3 f2 Bg4 Qg1 Bf3 f1Q Be4 Qge1 Rg3 Qh1 Rh3 Qg3 Bg2 Qff2 Rh8 Rg4 Kh6 Rg6+ Kh7 Be4 Kg8 Qh4 Rh6 Ba8 Bb7 Qhc6 Kh7 Qc8 Ba6 Bh1 Bc4 Qb7 Bd5
qn4n1/r2NNqpp/3K3R/2PnN1bq/3QN3/1q1q4/qk1Rr1P1/3B1R2 b - - 0 1 illegal: No possible last move
2b4Q/N1Kp4/1p3N2/B1bqR2B/nnP1N3/nnP2k1n/qr3n1N/1bB5 b - - 0 1 legal: proof: f4 c5 b4 cxb4 g4 h5 a4 hxg4 f5 a5 f6 exf6 Ra3 f5 Rh3 f4 c3 Ra6 Rh6 Rc6 d3 Rc4 Rb6 b3 Rb4 axb4 dxc4 Qa5 Qd2 Qg5 Qd1 Qd8 Kd2 Ke7 Kd3 Kd6 Kd4 f5 e4 g5 h4 b6 h5 b2 h6 b3 a5 f3 a6 f2 a7 g3 a8N g4 h7 f4 Rh2 f3 Bh3 f1N Bd2 g2 Qe2 g3 Be1 f2 Nc7 Nf6 Bg4 Nd2 Rh5 f1Q Nh3 g1N Qh2 Qe2 Re5 g2 Bh5 Na6 Nf2 Nc5 Ng4 Nd5 Bh4 Nh3 Bg5 Rg8 h8B g1N Bg7 Nb4 Bf4 Be7 Bf8 Nf2 Qh3 Na4 Nb5+ Kc6 Na7+ Kd6 Qh4 Ngh3 Bg5 Qc7 Bf4 Qc6 B4h6 Nf1 Nd2 b1N Be3 b2 Qf6+ Kc7 Qh8 Na3 Beh6 b1B Be3 Qb7 Bg5 Nc6+ Kd5 Bc5 Bgh6 Be3 Bb4 Bc5 Ba5 Qa8 Nb3 Qa2 Bc1 Rg7 Nd2 Rh7 Nf3 Nd2 Ng5 Rg7 Re8 Rf7 e5 Nb3 e6 Nb4+ Ke5 Rf6 e7 Rd6 Ne4 Rd2 Rg8 Rb2 e8N+ Kb7 N8f6 Kc7 Re8 Qc6 Kf5 Qa8 Re5 Qd5 Kg6 Qd4 Kf7 Qd6 Ke8 Qd5 Nd2 Kd6 Kd8 Qc6 Re2 Qd5 Nde4+ Ke6 Kc7 Kf5 Nd2 Kf4 Re5 Kg3 Nde4+ Kf3 Nh2+
BN4R1/3P1n2/pP6/r2R3K/2r3R1/r1Nqqr1n/Q1bqk2p/1q2Nr1N b - - 0 1 legal: proof: h4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 b3 e4 g6 e3 Bb2 Be7 Bc3 Bg5 Bf6 gxf6 hxg5 f5 Qc2 exf2+ Kd1 f4 Kc1 Ne7 Qd1 Ng8 d4 Ke7 Kd2 Ke6 e4 h5 Ke2 f5 Kf3 c5 d5+ Ke5 d6 c3 b4 c4 g7 h4 g6 a3 b5 a2 b6 h3 Qa4 Kd4 e5 h2 e6 c2 e7 c1R e8R Rh5 Qb3 c3 Bg2 Kd3 Re4 Nc6 Qb4 c2 Qe1 f1Q+ Qf2 Nh6 g8N Nf7 g7 Ne7 Rc4 Ng6 Na3 a6 Rb1 a1R Nb5 Ra3 Rbb4 Qe1 Rc5 Qd2 Ne7 Be6 g8N Bb3 Qe1 Rc8 Re5 Rc4 Qf2 Rf1 Nf6 c1Q Nc6 Bc2 Nb8 Qe8 d7 Qb1 Ng4 Qe7 Bh3 Qc5 Nc3 Qce3+ Kg2 f3+ Kg3 Nf4 Bg2 Rg5 Kh4 Nh3 Re8 f4 Rg8 Rga5 Rb5 Bd1 Kh5 Bc2 Rd5+ Qd4 Qe1 f2 Qe6 Qe3 Nf3 Qd2 Ne4 Ke2 Ne1 f3 Rg1 Q2e3 Bh1 Qdd2 Rg2 Rg1 Rg3 f1Q Ngf2 Rg2 R3g4 Rg3 Ng2 Qfd1 Ne1 Qdd3 Bg2 Q1d2 Nh1 f2 Rb5 Rc7 Qa2 f1R Rd5 Rc4 Rh8 Qf2 Rhg8 Rf3 Nc3+ Ke3 Rc5 Rg3 Bd5 Rf3 Ba8 Qg1 Na4 Ke2 Rd5 Qge3 Nc3+
3qb1Qq/1B1nb3/2r5/k1NK3N/b2Np1qR/4pP2/Bq2P1n1/n2n1BB1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 b4 g5 a4 gxh4 Bf4 a5 Bc1 axb4 Nd2 f5 Ra2 b5 Ra3 Ra5 Re3 b3 Nb1 b4 Re4 Rb5 axb5 fxe4 Kd2 h5 g4 e5 c4 d5 c5 Kd7 c6+ Kc7 g5 Kb6 f3 h3 g6 d3 Ke3 d2 c7 h4 g7 h2 Nc3 d4+ Kf2 b2 Qe1 b1Q Na4+ Ka5 b6 d1B b7 d3 Ke3 d2 Nc5 b3 Ne6 b2 Nc5 Nf6 g8B Ba4 Qf2 Be7 Na6 Bcd7 c8B d1N+ Kd2 Nh5 Qd4 Rh6 Nc5 Be8 Bg2 Rc6 Bgh3 Nf4 Qd5 Nd7 b8N Ng2 Bb7 Qa1 Qb3 b1N+ Kc2 Qa3 Be3 Nd2 Bf2 e3 Kd3 e4+ Kd4 Qa2 Kd5 Qb2 Qa2 Nb3 Bf7 Ne1 Bf1 Ng2 Nh3 Na1 Nf4 h3 Be6 Qbb6 Nh5 Qb2 Rg1 h1Q Bg8 Ne1 Rg4 h2 Rh4 Qg2 Bg1 h1Q Bf7 Qg4 Qc4 Rc7 Be6 Ng2 Nc6+ Kb6 Nd4 Rc6 Qc3 Qhh3 Qe1 Qh2 Qg3 Ka5 Bf7 Qf4 Qg8 Qg4 Be6 Qe5+ Kc4 Qeg7 Kd5 Qh8 Bf7 Nf6+ Ke5 Rc7 Bc4 Rc6 Ba2 Nd7+ Kd5
r2k3r/1q2N3/bN1ppBr1/K1P1nB2/2B2qqq/BR6/1N1nPn2/1nQ5 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 h4 g5 a4 g3 Kd2 g4 Ke1 Bh6 Ra3 Bg5 hxg5 bxa3 Kd2 h5 c4 b5 f4 a2 c5 a1Q g6 g2 g7 b4 f5 e6 a5 d3 a6 h4 a7 h3 f6 h2 Nc3 g3 Nf3 g1R Nd5 b3 Bb2 d6 Kc3 d2 Kb4 Nd7 Bh3 g2 Bf5 Ba6 Nb6 Ne5 Ne1 Qc1 Ba3 b2 Nd3 b1N f7+ Ke7 Ka5 Nf6 Nb2 Ne4 Qe1 d1N f8B+ Ke8 g8N Ndf2 Qd1 Qh4 Be7 Qcf4 Bf6 Ned2 Ne7 Kd8 Qc2 Rd1 Rg1 h1Q Qc1 Re1 Rf1 Rd1 Re1 g1Q Rf1 Qgg5 Rg1 Qb7 Rg3 Rg1 Rb3 Rb8 a8B Qgh5 Qc3 Rg6 Qc4 Q5g4 Qc1 Qa7 Bd5 Qb7 Bc4 Rc8 Nd1 Ra8 Nb2
Q5N1/n2RBKBq/1r1RRnpB/2n3Pp/1R2br2/5br1/1P1r1pk1/7q b - - 0 1 illegal: No proof kernel
KNr1B3/B3qq2/2P2Q1R/3N1qk1/4pp1n/1b1r1B1p/2r1Pr1N/B3b2n b - - 0 1 legal: proof: b4 b5 d4 g5 h4 c5 f4 gxf4 a4 cxd4 h5 a5 Ra2 Ra6 Rb2 Re6 axb5 Rc6 b6 Rh6 b5 Rxh5 Rb3 Rh2 Rb4 axb4 Kf2 e5 Kf3 Ke7 Ke4 Kf6 Kd5 h5 c4 d3 g4 b3 b7 b2 b6 f3 c5 h4 c6 f2 Be3 h3 Nc3 b1Q Bc1 d2 Na4 Nh6 Nf3 Na6 b8B Nf5 b7 Nb4+ Kc4 d5+ Kb5 d4 Nc5 d3 Na6 Be6 Nc7 Qe7 Kb6 Nh4 Ka7 Bb3 Bg2 f1Q Qe1 d1R Rg1 d2 Qf2 Qf5 Bb2 Rc1 Ba1 d1R Ka8 Rd3 Ba7 Rc2 b8N Bg7 Qd4 Rc8 g5+ Kg6 Bh1 e4 Nd5 Rf2 Nh2 Bf6 Qb2 Bc3 Bf3 Be1 Rg4 Kh5 g6 f6 Rf4+ Kg5 g7 Qh7 g8B f5 Bg4 Qhf7 Rf3 f4 Rg3 Qg2 Qh8 Qf5 Bf7 Qf3 Be8 Qff7 Bh5+ Qg4 Re3 Qgf5 Bf3 Na2 Qd4 Nc3 Qe5 Nd1 Qd4 Rdd2 Rc3 Rd3 Rc5 Ne3 Rb5 Nf1 Rb7 Ng3 Rd7 Kg6 Rd6+ Kg5 Rh6 Nh1 Qf6+
q1N1q3/3P2kr/3K1nb1/3NNB2/nQpN1p2/2P5/Bbr2bnp/2Rb3B b - - 0 1 legal: proof: b4 a5 f4 b5 a4 g5 h4 gxh4 e4 d6 e5 Bb7 e6 Ba6 Bb2 Bc8 Be5 dxe5 f5 Nh6 Ra3 Ng8 f6 exf6 Rb3 f5 axb5 f4 b6 Ra6 b5 Ra8 Rb4 axb4 Ke2 f5 Kf3 h5 d4 c5 g4 b3 e7 Kf7 e8B+ Kg7 b7 b2 g5 e4+ Kf2 h3 d5 f3 Ke3 h4 Kf4 h2 Ke5 f4 d6 h3 b6 e3 g6 e2 Qe1 f2 Qb4 e1B Bd7 Na6 b8N Rh7 b7 Nf6 Nc6 Qe8+ Ne7 Rb8 Be2 f1N Nc3 b1B Bf3 Bf2 Bf5 Ne3 Nd5 Ng2 c3 Bd7 B3e4 Ba4 d7 Bd1 Ne2 Bd3 Rg1 h1Q Nd4 h2 Kd6 Ra8 b8N c4 Nbc6 Ra7 Ne5 Nc5 Re1 Na4 Rg1 B3e2 Bb1 Bd3 Ba2 Rb7 Qa3 Rb1 Qb4 Rb2 Re1 Rc2 Rg1 Kh6 g7 Be4 g8B Kg7 Bh3 Bg6 Bf5 Be2 Rc1 Bf3 Kc7 Bd1 Nc8 Be7 Bge6 Bc5 Be4 Be7 B6f5 Bf8 Qb5 Ba3 Qb4 Bb2 Kd6 Qe1 Bf3 Qe4 Ne3 Qa8 Nd5 Ne3 Bh1 Ng2 Ra1 Ba3 Rb1 Bb2 Rc1
rN1R1R1n/3rbr1P/1Nb1p3/2Prp3/r1B2N2/3qpk1Q/3qR3/1bR4K b - - 0 1 legal: proof: e4 h5 b4 c5 g4 hxg4 a4 cxb4 e5 b3 Bb2 d6 Bc1 dxe5 Na3 b5 Ne2 f5 Ng1 f4 Nb1 b4 Bb2 Na6 Bd4 Nc7 Be3 Nb5 axb5 fxe3 d4 Kf7 c4 Kg6 h4 Kh5 f4 a5 b6 g5 d5 a4 c5 a3 f5 a2 f6 b2 f7 e6 b7 b3 b8R Bb7 d6 Ne7 d7 Bc6 Qd3 g3 Qd2 Kg4 h5 g2 h6 Ng6 h7 Be7 Na3 b1Q+ Qc1 b2 f8N Qd3 Nc4 b1B Nh3 g1R Qb2 Kf3 Rh2 g4 Re2 g3 Nb6 g2 Nf4 Rg8 Qb4 Rg7 Qd2 Rf7 Qb4 Qc8 d8R Nh8 Nfd7 Ra4 Rf8 Qd8 Rc8 Rh1 Nb8 g1R Qd4 Qd7 Rcd8 Rgg7 Qc4 Rh4 Qa6 Rd4 Qb7 Rd5 Qa8 Bc2 Rc1 a1R Qa2 Bb1 Qc2 Qb5 Qf5 Ra8 Qg4+ Ke4 Qh3 Qd3 Rh2 Rhg4 Be2 Qd2+ Kf1 Rh4 Bc4 Rhg4 Qh4 Kf3 Re2 Qd6 Ng2 Rgd4 Kg1 Rgg4 Kh1 Rd3 Bb5 Rga4 Bc4 Qd7 Nf4 Qd6 Rc8 Qd8 Qh6 Rd7 Qh2 R3d5 Qh3+ Ke4 Qf5+ Kf3 Kg1 Rb7 Rce1 Rd3 Kh1 Qd6 Rce8 Rd7 Rc1 Qd4 Rc8 Q4c3 Rce8 R3d5 Rd8 Qcd3 Qh3+
7b/3n1R1K/2q1q1n1/kR1n1p2/1pp5/2Q1RPBb/1BP1bN1B/b3R1qr b - - 0 1 legal: proof: b4 a5 a4 b5 e4 g5 Ne2 d5 Ra2 dxe4 Ng1 Ra6 Ra1 Rb6 Ne2 axb4 Ng1 b3 Ne2 b4 Ng1 Rb5 axb5 Bd7 Qf3 Be6 Qd1 Bc8 f3 g4 Na3 g3 Nc4 Nh6 Ne5 Ng8 Nd3 Bd7 Bb2 Be6 Bc1 Bc8 Ke2 h5 Nf2 gxf2 g4 Kd7 g5 Ke8 Bh3 Nd7 Bf5 Nb8 Bg4 hxg4 Ke3 Kd7 Kf4 f1B Kf5 c5 d4 e5 h4 c4 d5 b2 h5 b1N h6 g3 g6 g2 h7 e3 b6 e2 g7 e1B b7 e4 d6 Kc6+ d7 Kb5 Ra2 e3 Bb2 e2 Nh3 g1Q Ra3 Nc3 Qa1 Nd5 Re3 Qe8 Nf2 Bc3 Qa3 Bf6 Qc3 e1Q Rh5 Ka5 Rh1 Na6 b8B Nc5 Bg3 Be2 Rh5 Bd4 Kg5 Qe4 d8R Bh3 Re8 Nge7 g8R Ng6 Rg7 Nd7 Kh6 f6 Rhe5 f5 Rb8 Be7 Rf7 Bf6 Ree8 Qe6 Rb7 Qc6 R8e5 Rd8 h8B Ra8 Bg7 Ra7 Bf8 Bh8 Bd6 Ra8 Bh2 Rg8 Re8 Rg7 Bdg3 Rh7+ Kg5 Bde5 Rb5+ Ka4 Rd3 Bd1 Bc1 Ndf8 Qd2 Ba1 Bb2 Nd7 Qc3 Bg4 Re6 Qe5 Re8 Qed6 Re1 Be2 Re3 Rh3 Nh1 Qe6 Nf2 Qf1 Bg1 Rh1 B1h2 Bh3 Kh6 Qg1 Rb8 Ka5 Kh7 Bg2 Rb7 Bh3 Rb5+
RbbkR1nR/n5KP/p2pB3/b3N3/3N1n1n/4rb2/qN1P1p1n/4RQ2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 b4 e5 b5 exf4 b6 f3 Ra2 cxb6 Ra3 b5 Ra1 b4 Bb2 h6 Bf6 a6 Kf2 f4 Bg5 hxg5 Ke1 Ra7 Ra3 Rc7 Ra2 Rc5 Ra1 Rf5 gxf5 Rh3 Kf2 Rh4 Ke1 Rh8 Kf2 b3 h4 b2 e4 g4 c4 g5 h5 a3 h6 a2 c5 Bd6 e5 Nc6 h7 Bb8 f6 d6 e6 Qa5 f7+ Kd8 f8N Na7 Nc3 b1B c6 Be4 Nge2 Qa4 Rc1 a1B Bh3 Qa2 Na4 Bc3 Re1 Ba5 Ng6 Bd5 Ne5 g3+ Kg1 g2 Kh2 g1N Nd4 f2 Nb2 f3 Kg3 f1N+ Kg4 f2 Kf5 g4 Kg6 g3 Kg7 g2 c7+ Ke7 Rc3 Nf3 Rce3 g1N Bf5 Ke8 e7 N1h2 Be6 Nh3 Qe2 Nh4 Qf1 Bf3 R3e2 Nf4 Re4 Bd7 c8R+ Bd8 Rc5 Ba5 Rb5 Bbc7 Rb8+ Bc8 Ra8 Bb8 Nec4 Qa1 Bf5 Nf6 Re6 Kd7 e8R Qa2 Bh3 Kc7 Rd8 Re8 R6e3 Re4 Rh8 Re5 Re4 Ng8 R4e2 Rb5 Re7+ Kd8 Be6 Rb3 Ne5 Re3 Re8+
1Rbq2qn/B1NR1p2/5n2/b1N1Q1pP/5Pp1/1r4nN/n1bb1K2/kR5R b - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 d5 h5 d6 hxg4 Bg2 e6 Bd5 exd5 h4 Kd7 e4 Ke6 f4 b5 a4 c5 h5 g5 d7 b3 a5 b2 e5 c3 a6 c4 a7 d4 Qd2 Kd5 e6 b4 e7 b3 e8N d3 Rh4 Kd4 Nd6 c2 Qe2 d2+ Kf1 d1N Qe1 c3 Qe8 Nf2 Ke1 Nc6 Ra6 Rb8 a8R Ne5 Qe7 Ne4 Ra3 Ngf6 R8a6 Ng3 Qe8 Ng6 Nc4 Bb4 Ne3 Ba5 Bd2 c1B Rh1 c2 Nc3 b1B Kf2 b2 Ra2 Rb3 Ned5 Rg8 Ne4 Nh8 Be1 Bcd2 Nc7 c1N Nc5 Kc3 Nh3 Bc2 Rb6 b1Q Rb2 Na2 Rb8 Rg6 Qe6 Qg8 d8R Qd1 Rd7 Rh6 Rb1 Rg6 Rc1 Kb2 Qe5+ Nc3 Rb1+ Ka2 Rb2+ Ka1 Kg1 Na2 Kg2 Nfe4 Bf2 Rgb6 Be3 Nf6 Kf2 Bc1 Re7 Qdd8 Rd7 R6b5 Nd3 Rb7 Ba7 R7b5 Nc5 Rb6 Rh2 Bcd2 Rh1+ Be1+ Kg2 Rd6 Nb7 Rd1 Nc5 Bed2 Kf2 Rb1 Rbxb1#
K1B1N3/2pP2Br/2pB3q/N7/b1q2nrb/qBQR4/1kpP4/3rrNq1 b - - 0 1 illegal: No possible last move, all moves rejected
r2b1b1q/2B1Pbq1/1NRp2r1/1p3p1N/2P1n1p1/5RN1/3Rr3/n2KQN1k b - - 0 1 illegal: No possible last move
nn1Bb3/3nPq1p/n4NRP/8/2NQppN1/2qrNB2/Kb1pr3/B4k2 b - - 0 1 legal: proof: b4 c5 a4 g5 f4 b5 axb5 gxf4 Ra4 cxb4 Ra6 Nc6 Ra1 Nb8 d4 e6 d5 exd5 e3 Ne7 e4 Ng8 e5 Bg7 Ra3 Bh6 Re3 Bf8 Re4 dxe4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb2 d5 h4 a5 c5 b3 g3 d4 b6 a4 h5 f3 e6 Kg4 h6 f5 b7 a3+ Ka1 d3 c6 a2 e7 Bg7+ Bb2 Bd7 c7 Be8 c8N Nf6 Qc1 f2 Qc6 Nfd7 Qd6 Qa5 Nd2 Qc3 Bg2 f1N Rh2 f4 Nh3 Ne3 Nb6 Nc4 Nd5 Ncb6 Nc4 d2 Qe5 Ra3 Qd4 Na8 Rh1 Be5 Rg1 Rg8 Bh1 Rg5 Rg2 Kf3 g4 Bh8 Nf2 Ke2 Nde3 Rh5 g5 Rh2 g6 Ke1 Neg4 Kf1 Nd1 Be5 Rg3 Re2 g7 Bd6 g8N Qa5 Bf3 Qd5 Qe3 Be5 Qc5 Qf7 Ngf2 Bg7 Bc3 Bf6 Kb2 a1N Rg6 Nc2 Ng4 Nb4 Be5 N4a6 Nde3+ Ke1 Kb1 b2 Qa7 Rc3 Ka2 Rd3 Bc3 Be5 N8f6 Bd4 Ba5 Bc3 Qd4 b1Q+ Ka3 Qc1+ Ka2 Bb2 Bc3 Ba3 Bb2 Qc3 Ba1 Nc6 b8B Bb2 Bc7 Ncb8 Nf5 Kf1 Bb6 Nac5 Bd8 Nca6 Nfe3+
R4qB1/1P1n3N/P3rbBB/1p2N1NK/p2Q4/2k2B2/2br1pp1/b2nb1q1 b - - 0 1 legal: proof: f4 b5 g4 d5 a4 h5 c4 e5 fxe5 dxc4 Bh3 hxg4 Bg2 Nc6 Bf1 Nb8 b4 a6 a5 Rh4 Ra4 Rh3 Qb3 bxa4 b5 Rh6 b6 Rh8 Qb5+ axb5 Kf2 Ke7 Kg3 Ke6 e4 g5 d4 c5 h4 f5 h5 f4+ Kf2 g3+ Kf3 g2 Kg4 c3 a6 f3 b7 c4 h6 f2 h7 c2 Nf3 g1Q+ Kh5 c3 Be2 g4 Nbd2 g3 Nc4 g2 Bh6 c1B Rh4 c2 d5+ Kd7 d6 Ke6 d7 Bg5 Rf4 Bg7 Rf8 c1B Re8+ Qe7 d8Q Bcd2 Qd4 B5f6 Rd8 Qf8 Ng5+ Ke7 e6 Be1 Bg4 Nd7 Bf3 Rb8 Ne5 Ra8 Qc3 Kd6 e7 Rb8 e8B Ne7 Qd4+ Nd5 Bg6 Ra8 Qd1 Kc5 Bf7 Kb4 Qd4+ Kb3 Bg6 Rg8 h8N Nc3 Nhf7 Nd1 Nh7 Bh8 Re8 Rg7 Nfg5 Re7 Bf7+ Re6 Bg8 Bhg7 Nef7 Rb8 e5 Ra8 Qd5+ Kc3 Rd8 Rc6 e6 Bh8 e7 Re6 e8B Nc5 Qd7 Bfg7 Qd5 Rc6 Kh4 Kb2 Be4 Bf5 Rc8 Re6 Bf3 Bc2 Rc6 Rd8 Rc8 Rdd6 Qd3 Nd7 Kh5 Be5 Qe3 Rd2 Ra8 Bhf6 Qd3 Bc3 Qd4 Kb3 Ne5 Ba1 Qg4 Kb2 Bg6 Kc3 Qd4+
BnB2nn1/2K5/RP2RQB1/2p1BP2/n2p2qb/2q5/1prk2p1/N2r1R1q b - - 0 1 legal: proof: c4 a5 e4 h5 g4 hxg4 d4 f5 b4 fxe4 d5 c5 Nc3 b6 Na4 Bb7 Nb2 Bc6 Nd3 b5 dxc6 bxc4 b5 Ra6 Nb4 axb4 Qf3 Ra5 Qd1 Ra8 Kd2 Kf7 Ke3 Ke6 Kf4 d5 h4 g5+ Kg3 Ke5 a4 e3 f4+ Ke4 a5 e5 a6 d4 f5 c3 a7 c2 h5 e2 c7 e1Q+ Kg2 g3 c8B g4 h6 b3 b6 b2 h7 Be7 Ra4 Qd5 Ra6 Qc3 Bc4 Bh4 Bf4 c1N Ra2 Ne2 Bd2 Qc6 Bb3 Kd3+ Nf3 e4 Qc1 e3 Ra6 Qg6 Bf7 Nf4+ Kf1 Qg7 Bg6 Ne6 Kg2 e2 Bf4 e1Q Be5 Nf8 Qh6 Kc2 Nd2 Qe4+ Kg1 g2 Kh2 g1N Nb3 Ne2 Rf1 g3+ Kh3 Qc6 Kg4 Qh1 Na1+ Kd3 Qg5 g2 Qf6 Kd2 Qd8 Qb4 Qe7 Nc3 Kf4 Na4 Qf6 Qc3 Ke4 Bf2 Kd5 Bh4 Be8 Qg4 Kd6 Nbd7 Bg6 Rb8 Bb7 Re8 a8B Nb8 Bc8 Re7 Bh2 Re1 Kc7 Rd1 Be5 Nh6 Re1 Rg8 h8R Rg7+ Bd7 Ng8 Rh6 Re7 Rf1 Re6 Bc8 Re8 Bg3 Re2 Bh2 Ke3 Be5 Rc2 Rh7 Ke2 Re7 Kd2 Re6
8/1n2qp1n/2rpPn2/1Bb4q/1BpNkp1B/8/2QqqPNr/K2R1NB1 b - - 0 1 legal: proof: b4 e5 a4 h5 g4 hxg4 Ra3 a5 Rf3 axb4 d4 b5 c4 b3 d5 b4 d6 Ra5 Qd5 Ba6 Qd4 Rd5 Rf4 exf4 Qd1 Bb5 cxb5 Rxd6 Bh3 Rd5 Bf1 Rd2 e4 Ke7 h4 Kf6 e5+ Kf5 h5 g5 b6 c5 h6 b2 b7 g3 h7 b3 e6 g2 a5 g4 a6 g3 a7 Ke4 a8N Qe7 Ne2 g1N Qc2+ Rd3 Nc7 g2 Nd5 Nh3 Ne3 g1Q Bd2 Na6 Kd1 Nf6 b8B Qh2 Bd6 Ng5 Ng2 Qh5 Bc7 d6 Bd8 Bg7 Bb6 Rc8 h8B Rc6 Bd8 Ngh7 Rg1 Ne8 Rh1 Bd4 Bf6 Be3 Bh4 Nef6 Bg3 c4 Bh2 Nc5 Bg1 Qh6 Nd4 Nb7 Be2 Qh5 Bf3+ Ke5 Ne2 Bc5 Nd4 Rc3 Be1 Rd3+ Nd2 b1Q+ Qc1 Re3 Nf1 b2 Bb4 Qa2 Qc2 b1Q+ Kd2 Qbb3 Kc1 Qd3 Be4 Qa5 Kb2 Qde2 Kb1 Rh3 Bf3 Rb6 Bc6 Rh2 Bb5 Rc6 Kb2 Qa3+ Kb1 Qad3 Ka2 Ke4 Ka1 Nd7 Qb2 Qdd2 Qc1 Qe8 Bh4 Ndf6 Qc2+ Qdd3 Nfe3 Rh3 Bh2 Qe7 Rd1 Qd2 Bg1 Rh2 Nf1 Qde2 Qb2 Qdd2 Qc2+
R6K/pr1r2n1/1p1Rb2Q/2pq4/5qP1/ppk1P1q1/1R3BB1/qn1B2NB b - - 0 1 illegal: Other
bRR1r3/bN3K2/pkb4b/5N1N/n1n1qbR1/P2Q2P1/3n2b1/2B1Nbrr b - - 0 1 legal: proof: f4 e5 d4 exd4 c4 h5 g3 b5 f5 bxc4 f6 h4 Bh6 h3 Bg2 hxg2 Bc1 gxf6 Qc2 f5 Qd1 f4 Kd2 f5 b4 c5 h4 d5 e4 Kd7 h5 Kc6 e5 c3+ Kd3 a6 h6 c2 a3 c4+ Kd2 c3+ Kd3 f3 h7 f4 b5+ Kb6 e6 f2 e7 f1B+ Qe2 f3 e8R f2 Nd2 Bh6 Ne4 Bd7 Rh4 Qe7 Rh1 Bc6 Rh5 Nd7 Rb1 Ngf6 Nd2 Ne4 Rf8 Re8 Ngf3 g1R Rb2 Bg2 Rh3 f1B Nb3 Nd2 Nc5 Bf4 Rh2 Bb8 Rh4 Ba7 Rg4 Ba8 Rb1 Qe5 Bb2 c1B Nb7 Qe6 Ne1 Nc5+ Kc2 Qe5 Qd3 Qe4 Rfg8 Na4 Rf8 Nf3 Kb3 Bh6 Bc1 c2 Kb4 Nd2 Rb2 Rg8 h8N Bf4 Nf7 Rh8 Rb1 Rhh1 Nfd6 Bh6 Nf5 Bf4 Qc4 d3 Rh8 d4 Qd5 Re6 Rc8 Re8 Qb3 Nc4 Rb2 d2 Qd3 d1B Rb1 Nd2 Rb3 Nb1 Kc4 Bdf3 Nbd6 Ka5 b6 Bh6 b7 Bf4 Bb2 c1B b8N Bh6 Rb4 Bcf4 Nd7 Bc6 Nf6 Ba8 Nb5 Kb6 Bc1 Bc6 Rb2 Ba8 Nh5 Nd2+ Kb4 Bc6 Nbd6 Ba8 Qc3 Bc6 Nb7 d3+ Qc4 Nb1 Kb3 d2 Qc2 d1N Qd3 Qd5+ Kb4 Nd2 Rb3 Ne3 Rb1 Nb2 Kc3 Qe6 Kd4 Nec4 Nc5 Ba8 Rc7 Ka5 Rc8 Na4 Rbb8 Nab6 Nb7+ Kb5 Rc7 Na4+ Rc5+ Kb6 Rc7 Ne4 Rcc8 Qe7 Kd5 Qh7 Ne7 Ned2+ Ke6 Bc6 Kf6 Qe4 Nf5 Bg7+ Kg6 Bgh6 Kf7
2n3q1/5NqB/N1P1Kb2/N1R3kq/Nr1qb2p/1RR2r1P/2qnb2q/2Qq4 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Na3 g4 Be3 g3 Bf2 gxf2+ Kd2 exf6 Nb1 f5 Qe1 f4 Qc1 Bh6 Qd1 Bf8 Kd3 Ke7 Ke4 Kf6 Kd5 h5 a4 b5 c4 d3 g4 d2 e4 h4 e5+ Kg5 c5 f5 h3 f3 e6 b3 a5 f4 e7 b4 e8N b2 a6 b3 c6 Nf6+ Ke5 d5 a7 d4 Ra3 d3 Qc2 d1Q Ra1 d2 Ne2 Ne4 Nd6 Nd7+ Kd5 Rb8 a8N Bg7 Nc1 Bf6 Ra3 Ba6 Ra4 Be2 Nb7 Rf8 Rh2 Nb6+ Ke6 Qd4 Nd3 Nc8 Nbc5 Rb4 Bg2 f1Q Nb6 f2 Na3 b1B Ra5 b2 Ne5 f3 Na6 Qg1 Qc1 f1Q Na4 f2 Rc5 Qc2 Bf3 Qfd1 Nac4 f1Q Na5 Qff2 Rg2 Rf7 Rg3 Qfh2 Bh1 Rf8 Rb3 Qcc3 Bf3 Bbd3 Bh1 b1Q Bf3 Qbc2 Bh1 Ng3 Be4 Nf1 Bh7 Qa1 Rbc3 Be4 Rb3 Bg7 Rbc3 Rf3 Rb3 Bf6 Rbc3 Kf4 g5 Qgg3 g6 Kg5 g7 Qg4+ Kf7 Qh5+ Ke6 Qe1 Qa3 d1Q Qc1+ Nd2 Rb3 Qeg3 g8R+ Kf4 Rf8 Qg8+ Rf7 Kg5 Rcc3 Qgd8 Rb7 Qf8 Rb5 Qg7 Rbc5 Qd8 R3c4 Qad4 Rcc3 Qdg8+ Nf7+
q1bB2B1/4qr2/N2b1n1K/k2PB1nQ/B3R2p/6nr/1N1q1n1P/Nn2n1r1 b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 e4 dxc4 f4 f5 Ra3 fxe4 f5 g6 Rf3 g5 Rf4 gxf4 Kf2 Kd7 g4 Kc6 d4 Kb6 g5 c5 d5 e5 g6 h5 g7 c3 f6 f3 Ke3 c4 f7 c2 Bg2 c3 Qe1 b3 Nd2 b2 Nf1 b1N Bd2 c1N Qd1 f2 Qe1 c2 Ne2 Bd6 f8B Nf6 g8N Na6 Nc3 Nc5 Be7 Ka5 Qe2 b5 Nd1+ b4 Bh3 N1d3 Be6 c1Q Nb2 Ra7 Bf7 Qd1 Bc3 Ne6 Nd2 Ng5 Re1 Qf8 Bd4 b3 Bd8+ Rc7 Qf3 Rh7 Re2 h4 Be6 Rf7 Qh5 Qc2 Re1 Qe7 Re2 Qc6 Re1 Qa8 Re2 Ka6 a5 Rc3 Re1 Kb5 a6 Kb4 a7 f1N+ Ke2 Ng3+ Ke3 Ne8 Nf6 Nf2+ Nd3+ Ka4 Re2 b2 Nb3 Kb5 Na1 Ka4 Bf5 Kb5 Bh7 Ra3 Bg8 Rb3 Nd7 Nf6 Nb6 Ka5 Re1 Na3 Re2 b1R Bb2 Rg1 Bc3+ Rb4 Nb2 Nb1 Bd4 Qc6 a8B Rb3+ Nd3 Qcb7 Re1 Qa6 Bc6 Qa8 Ba4 Ngh1 Ke2 e3 Nb2 e4 Be5 Nfh3 Kd1 e2+ Kc1 e3 Kc2 Rb4 Kd3 Rb5 Kd4 Ng3 Kd3 Nf2+ Kd4 Qc6 Na8+ Rb6 Nc7 Qa8 Rc1 e1Q Rc4 e2 Ke3 Rb3+ Kf4 Re3 Rd4 Qd2 Re4 e1N Qh6 Bb7 Qh5 Ngh1 Kf5 Bc8+ Kg6 Rh3 Kh6 Ng3 Na6+
1q1nb1NK/bBr1q3/R1NBN2p/2b4P/rn1P3B/r1nr2NQ/6n1/1k4r1 b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 e4 dxc4 f4 f5 Ra3 fxe4 f5 g6 Rf3 g5 Rf4 gxf4 Kf2 Kf7 h4 Kf6 g4 Ke5 h5 Kd4 a5 b5 g5 c5 d3 e5 f6 b3 f7 h6 a6 b4 a7 b2 g6 f3 Kg3 c3 g7 c2 Na3 Kc3 Bf4 b1R Bd2+ Kb2 Nh3 c1R Be1 c4 Nf2 b3 Rg1 e3 Bb4 e4 Kf4 c3 Ke5 e2 Qe1 e3 Rg2 c2 Rg1 Nc6+ Ke4 Nf6+ Kf4 Ra1 g8N Nd5+ Ke4 Bd7 Qd2 e1N Bd6 e2 Bc7 Be8 Kf5 Qb8 Kg6 Ndb4 Nb5 Ra4 Bg2 Bc5 Kg7 Nd8 f8B Kb1 Ne4 b2 Nd4 f2 Be7 f1R Ng3 Rd1 Rh1 c1B Bh4 Rg1 Qc3 Be3 Bb7 Ng2 Nc6 e1Q Bd6 Bf2 Qb3 Qe3 Qe6 Qe4 Qh3 Rh7+ Kf8 Rc7 d4 Rd3 Rh2 Be3 Rh1 Bg5 Rh2 Be7+ Kg7 Bb6 Kh8 Qe2 Be5 Bec5 Bf4 Qe7 Bd6 Kc2 Rh1 b1N Rh2 Nc3 Rh1 Rga1 Rf1 R1a3 Rf6 Kb1 Rg6 Qc8 Rf6 Rb8 a8N Ba7 Ba6 Rb5 Bb7 Qb8 Re6 Bcb6 Rf6 Rg5 Re6 Bc5 Rg6 Rc8 Nc7 Rg4 Ne6 Rc7 Ne5 Rf4 Nc6 Rf1 Rg5 Rg1 Re5 Bcb6 Ra5 Bc5 Ra6
3q2b1/rqPn3N/qp5b/qnR2QBq/rP3R2/k1R1n1N1/3N1KR1/b5n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 e5 d5 exf4 d6 a4 Bg2 cxd6 Be4 d5 Bf5 d4 Be6 Ne7 Bd5 Ng8 Bb3 axb3 e4 d5 c4 Kd7 a4 Kc6 h4 g5 e5 f5 c5 b6 e6 g3 a5 Kb5 h5 f3 c6 f4 c7 g4 a6 f2+ Kf1 b2 h6 d3 a7 d4 e7 d2 e8N g2+ Ke2 f1N h7 g3 Nf6 d3+ Kf3 Ne3 Qc2 d1Q+ Qe2 Be6 Nh5 Qa4 Rh2 Qa5 Rh1 Nd7 Ra2 Ne7 Ra1 N7f5 Bd2 Nd6 Ra2 Bg8 Nh3 g1B Qf1 g2 Qe1 Bh6 Na3+ Ka4 Qf2 b1Q Rc2 Nb5 Nc4 Bh2 Bc1 d2 Rf1 d1Q+ Re2 Qb2 Nd2 Ka3 Ng5 Bg1 Ng3 Bh2 Qe1 g1N+ Kf2 f3 Nh5 Rb8 a8R Be5 Ng3 Rb7 Ra7 Qf6 Ra8 Ra7 Re8 Bc3 Re5 Qd8 Rc5 Be5 Nb3 Qd5 Nd2 Qb7 Qd1 Bf6 Qc2 Bc3 Qf5 Be5 Nb3 Bf6 Bd2 Qe5 Rfc1 Qee8 R1c2 Ba1 R2c3 Nc2 Bf4 Qh5 Re4 Ne3 Nd2+ Bb3 Rd4 Rg8 h8R Rf8 Rc1 Bg8 Nh7 Re8 Bg5 Rf8 Nh1 Re8 Rf4 Rf8 Kg3 f2 R1c2 f1Q R2c3+ Bb3 Rg8 Qfe2 Rg7 Qd3 Rc1 Bg8 Kf2 Re8 Ng3 Re5 Rc6 Rc5 Rgg6 Rc2 Rcc4 Ra2 Rc5 Nd6 Ne4 Qda6 R1c3+ Kb2 Be7 Nb5 Rg2 Ra4 Bg5 Ka2 Ng3 Kb2 Rc2+ Ka3 R2c3+
1b2kb1b/Qp5q/nKbq2r1/rB4qN/1P4n1/3P2R1/nrB1qBR1/1B5R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 e5 c5 exf4 Na3 a4 Nb5 d6 Nd4 dxc5 Nb3 axb3 Rh3 c4 Rh2 Bg4 Rh1 Bc8 Kf2 h5 e4 c5 g4 f5 a4 f3 Ke3 f4+ Kf2 h3 d3 h4 e5 b2 a5 b1N e6 c3 g5 h2 a6 c4 a7 c2 e7 c3 g6 h3 g7 Nh6 g8B Na6 Qe2 Qd6 Bc4 Rg8 Qe4 Rg6 Bb5+ Bd7 Bd2 c1B Qd5 c2 Qc5 Bb2 Be3 c1B Ra2 Bh8 Qf5 Bc6 Bg2 Nc3 Ne2 Bd2 Rc2 Na2 Qc5 Bc1 Ng3 Ng4+ Ke1 f2+ Ke2 f1R Bf2 Be3 Bd5 Rb1 Nh5 Rb2 Kf3 Bd2 Ke4 f3 Qb6 Bf4 Re2 Nf6+ Kd4 Ng4+ Kc4 Bfe5 Ba4 Bg3 Bc2 Bf4 Bh4 Bg3 Rg2 f2 Qe3 f1Q Bg8 Rb8 a8R Qe2 Qa7 Bge5 Bf2 Rd8 Ra1 h1Q Bd5 Qh2 Rh1 Qg1 Bb1 h2 Bf3 Qee1 Bd1 Qe2 Bdc2 Qc1 Rc8 Qg5 Rc7 Ra8 Rd7 Be4 Kb5 Bc6+ Kb6 Bf4 Rf1 h1Q Rg3 Qh3 Rh1 Qdd5 Rg2 Bb8 Rd6 Qh2 Re6 Qhd6 Re3 Qf7 Reh3 Qh7 Rhg3 Kd7 e8B+ Ke7 Bf7 Kd7 Bc4 Ke8 Bb5 Nc7 Qa3 Ra5 Qa4 Na6 Rhg1 Nc5 Rh1 Ra7 Bc4 Ra8 Qb5 Ra3 Qa6 Ra5 Qa7 Na6 Bb5
Q4nnN/1Brp2N1/3P4/1K1RN2n/1bN2R2/1rbn3b/Rn3Pkr/2q3rn b - - 0 1 legal: proof: h4 c5 e4 a5 b4 f5 h5 fxe4 h6 c4 Bb2 axb4 Nh3 c3 Qc1 cxb2 Ng1 gxh6 Qd1 h5 Bb5 h4 Be2 Bh6 Bf1 Bf8 Ke2 Kf7 g4 Kg6 c4 Kg5 a4 Kf4 d4 h5 c5 b5 a5 e5 g5 e3 Kd3 b3 d5 e2 a6 e1N+ Kc3 h3 Kb4 e4 a7 h4 g6 h2 g7 e3 Ra4 h3 Nd2 b1R Ra5 e2 Ra3 b2 Ndf3 Ba6 Ra1 Nc6+ Kb3 b4 Ka4 b3 Nd2 Qg5 Ra2 Nce7 c6 Ng6 c7 Nd3 c8N e1B Qh5 Bb4 d6 Nf8 Nb6 Rc8 a8N Rc7 Ne4 Bec3 Be2 Rh6 Nf3 Rg1 Nc4 b1N Qe8 b2 Qc8 Nd2 Nfe5 b1R Bf3 Rb3 Qe8 Bb7 Kb5 Bd5 Qb8 Be6 Qd8 Rh8 Qb8 Qh6 Ng5 Bf5 Ngf7 Bg4 Na3 Nc4 Bb7 Ncb2 Nac4 Rh7 Nh8 Bf5 Nc6 Kf3 Qd8 Kg2 N6e5+ Rc6 Nc7 Qc1 Ne8 Rh6 Nf3 Rc7 Qc8 Rd1 Re1 h1N Re4 h2 Rf4 Ng3 Qa8 h1N Nfe5+ Kh3 Bf3 Rg1 Bc6 Nh5 Bb7 Ngf6 g8R Rh7 Rg7 Ng8 Rg5 Bg4 Nf3 Kg2 Rd5 Bh3 Ng7 Bf5 Na3 Nhf6 Nc4 Rh2 Ne8 Nh5 Nfe5 Bh3 Ng7
K2N4/br2n1R1/1p1qQqP1/Bb2N3/1P1r4/1bR4R/r1rn1r1r/1RN2b1k b - - 0 1 legal: proof: d4 e5 f4 exf4 b4 g5 h4 gxh4 e3 a5 d5 a4 d6 cxd6 Bb5 d5 Bc4 d4 Bb3 axb3 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf3 Kf5 c4 h5 a4 d3 c5 b2 a5 d2 a6 d4 g3 h3 a7 h4 c6 h2 c7 h3 Nc3 b1Q Qb3 d1R Ra2 d3 Qa3 d2 Qb3 Nd7 Na4 Nc5 Ne2 Qd6 Ng1 Ne4 Nc3 Ne7 Ba3 Rh7 Bc1 Bd7 c8R Qa1 Rb2 Bb5 g4+ Ke5 g5 f5 g6 Rg7 Re8 Rc8 Nce2 Rc2 a8N Qaa6 Nb6 Qf6 Na4 Qad6 Rb1 Ra2 Ba3 Rc1 Ra8 d1R Ra7 Rcc2 Bc1 Rd4 Nc5 Rf7 Ne6 Nd2+ Kf2 Ke4 Nd8 f3 Qe6+ Qfe5 Bb2 f4 Nc1 Rg7 Ra3 Rh7 Rc3 Bg7 Ke1 f2+ Kd1 f1B Nf3 Bfc4 Ke1 Bb3 Kf2 Ra7 Qc4 Qee6 Ne5 Qf6 Qe6 f3 Kg3 f2 Kg4 f1B Ba1 Bf8 Bb2 Qg7 Kg5 Qh6+ Kf6 Ra2 Ba1 Bg7+ Kf7 Qh4 Bb2 Nc6 Ke8 Bf8 Ba1 Rf7 Bb2 Rf2 Ba1 Qf6 Bb2 Qd5 Ba1 Bd6 Kd7 Bc5+ Kc8 Ne7+ Kb8 Ba7+ Ka8 Qd6 Nec6+ Kf3 e4+ Kg2 e5 Bfe2 Qc8 Nc4 e6 Nd2 Ne5 Bf1 Rc6 Rg4 Bd4 Rgf4 Bb6 Rd4 Ba5 b6 Rc5 Bfe2 Rd1 h1R Rc3 h2 Re1 Bed3 Re3 Rd1 Rh3 h1R Qc4 Bf1 Qe2 Rh2 Qe1 Nc6 e7 Kh1 e8R Ne7 Qe2 Re1 Qc4 Ree4 Rg8 Rh4 Qe6 Rh7 Nec6 Nc8 Ne5 Rb7 Rg7 Ne7 Qg4 Rab2 Qf5 Ra2 Qe6
b3b3/5b2/1q1nB1bB/1p1q4/2P1rnp1/BBb3PR/K1R1nN1R/3rkQ1r b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Nc3 h3 Nd5 exf6 Ne3 f5 Ng2 hxg2 Be3 f4 Bd2 Rh3 Bc1 Rh8 Kd2 Ke7 e4 Ke6 a4 Ke5 h4 f5 c3 b5 Kc2 d5 Kb1 g5 h5 f3 a5 f4 h6 d3 a6 b3 h7 d4 a7 d2 Kb2 g4 Rh6 d3 Nh3 g1N Qc2 d1R Rha6 f2 R1a4 d2 Ra2 f3 Qb1 Nf6 R6a3 Bb4 Ra4 Ne8 R4a3 Na6 Ra4 Bd7 Ra1 Ne2 R1a2 Nc5 R4a3 Nd6 Qd3 Ne6 Qc2 N6f4 c4 Kd4 e5 Ke3 e6 Qb6 e7 Rae8 a8B Bc3+ Kb1 b2 Bd5 Bc6 Be6 Ba8 Bg2 f1B Nf2 Bd5 Bh1 Bg2 Ra8 Bc6 Rc8 Bd5 Rc5 Ba8 Rh5 Bd5 Rh2 Ba8 Nd3 f2 Rh3 f1B Nf2 Bgc6 Be4 Bg2 B4f5 Rb8 e8R Bgd5 Rc8 Re8 h8B Rh1 Rc7 Rbd8 Bg7 Kf3 Bg6 d1Q Bh6 Kg2 Rh7 Kf1 Qe4 Ke1 Qg2 Re7 Rh2 Be8 Bc2 Qdd4 Bb3 Qe5 Bc8 Bdf7 Be6 Qec5 Bg7 Qg5 R7h3 Qd5 Bh6 Rdd7 Be3 Rd8 Bc5 Rdd7 Ba3 Rd8 Bc8 Re4 Be6 Bb4 Kc2 b1B+ Kb2 Bd3 Ka1 Bc3+ Rb2 Re5 Ka2 Bdg6 Rc2 Re4 Rh5 Rd7 R5h3 Re7 Ba4 Rd4 Bb3 Rd1 Bd7 Re3 Be6 Re4 Qf1+
2K1krn1/BR1P1b2/4BrB1/q2p2bR/1Bb2p2/1Q3Pqn/rrRNn3/r7 b - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 d5 h5 d6 hxg4 Nc3 e6 Nd5 exd5 Kd2 b5 Ke3 g5 Kd4 f5 Kc5 c3 h4 c2 e4 g3 a4 g4 e5 b3 a5 b2 h5 b1R e6 b4 h6 g2 e7 g3 h7 b3 a6 b2 a7 Bh6 Ra5 Be6 Qd3 Nc6 Qd2 Nd4 Bd3 Bg5 Ra3 Bf7 Nf3 g1N Ra2 g2 Qc3 Nh3 Nd2 g1Q Qb3 Ne2 Kc6 Qg3 Kb7 c5 f3 c4 Be4 f4 Bf5 c3 Be6 Qa5 Rh2 Rc8 a8R Ra1 Ra7 b1B Bb2 c1R Ba3 Bd3 Bb4 Rcb1 Rc2 Rb2 Rh1 Bc4 Rh2 Nf2 Rh5 Rc7+ Kb8 Raa2 Rb7 Rd7 Kc8 Nh3 Bf5 Nh6 Be6 Rf8 h8B Ng8 Rc1 c2 Bd4 Neg1 Ba7 Ne2 Ra1 c1R Rb1 Rf1 Rc1 Rh1 Rc2 Rha1 Rh8 Bg6 Rh5 Rf6 Bg4 Kf7 e8B+ Kf8 Rh8 Rdf7 Bf5 Bh5 Bed7 Bg6 Bde6 Ke8 Rh5 Rf8 Be4 Bf7 Bd3 Rc1 Bg6 Rca1 d7#
1qQB1B2/qb1N4/np4bp/2r1P1R1/r3R2n/nP2k3/KB4q1/2R1bbbB b - - 0 1 illegal: No proof kernel
5bk1/3n1qbp/KbN3b1/3P1NrR/3R4/p2Qqn1B/R1rn2NP/1rb3R1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 f5 b5 f6 bxa4 b3 exf6 Ra3 f5 Ra1 f4 Ba3 g4 Bc5 g3 Bf2 Be7 Qc2 gxf2+ Kd1 Bb4 Kc1 Bc5 Qd1 Bf8 Kb2 a5 Kc3 c5 d4 f5 e4 Kf7 g4 f3 e5 f4 b4 a3 b5 a4 b6 a2 g5 a3 b7 Nd7 b8N Qe7 d5 Ngf6 g6+ Kg8 g7 Ng4 e6 Nge5 Bd3 f1R Nh3 f2 Qd2 f3 Kc2 c3 Kb3 c2 Bg6 c1B Qe2 Be3 Nd2 c4+ Kc3 Ra5 Qd3 Bb6 Nb3 Rc5 Kb4 c3 Rg1 c2 Nf4 c1B Nc6 Rc2+ Kb5 Re1 Nbd4 f1N Nf5 f2 Rg4 Nd2 Ng2 f1Q Rd4 Nef3 Be8 Qg5 e7 Qe3 Bg6 Qff2 e8R Rd1 Re5 Re1 Rb1 a1B Rb2 Rf1 Ra2 Rg1 Nf4 Rg5 Bh5 Qf1 Bg4 Bab2 Bh3 Qff2 Qc3 Ba1 Ng2 Ba6+ Ka4 Bd3 Qc4 Be4 Kb5 Qf1 Ka6 Qff2 Nfh4 Bg6 Nf5 Kf7 Ree4 Rg3 g8R Bb4 Na5 Nfe5 Kb5 B6c5 Ngh4 Bh5 Ka6 Bac3 Rgg4 Bg6 Nc6 Rb8 Nd6+ Kg8 Qd3 Qf7 Ndf5 Nef3 Rc4 Bg7 Rcd4 Ba5 Ref4 Rb1 Rg5 Bd8 Rfg4 Bdb6 Rh5 Bcf8 Rgg5 Rg2 Rg3 Rf2 Rg1 Rg2 Rd1 Rg4 Rg1 Rg5 Ng2
QR1rbbK1/4b1p1/2P1n1rr/1r2R1qk/3R4/2NR2P1/B2pb2r/1n1B1bB1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Nc3 h3 Nd5 exf6 Ne3 f5 Ng2 hxg2 Be3 f4 Bd2 Rh3 Bc1 Rh8 Kd2 f5 Kd3 Kf7 Kc4 Kg6 Kd5 b5 e4 d3 h4 d2 c4 b3 a4 b4 e5 f3 c5 f2 e6 f4 a5 f3 a6 b2 c6 b1R e7 b3 e8R b2 a7 Qg5+ Re5 Ne7+ Kd6 Rh6 Re6+ Kh5 Nh3 g1B Ra4 Na6 Be2 f1R Nf2 Nc7 Rd4 Ba6 Ne4 Rd8 a8B Rf2 Nc3 Rh2 Qb3 d1R Bb7 Rf1 Bd1 Be2 Be3 f2 Qb6 Re1 Rd3 f1B Qa5 Rg6 Bc8 Bf2 Rf6 Ne6 Rf5 Nd5+ Ke5 Be7 Qa8 Bg1 Ba7 Bgc5 Ba6 Bf8 Bc4 Bce7 Ba2 Rh6 Bg1 Rg6 Na4 Nc3 Rd4 d5 Rd3 Kg4 h5 d4 h6 Kh5 h7 Rh6 Re3 d3 h8R d2 Rd3 Ra1 Rg8 b1B Rh8 Bc2 Rg8 Nb1 Nc3 Rh4 Rh2 Rg6 Rf2 Rh2 Rf4 Bb3 Rfd4 Bd5 Bab3 Ra5 Ba2 Rb5 Rh8+ Rh6 Rg8 Nc5 Rh8 Bf7 Rg8 Be8 Rh8 Rc8 Kd5 Rcb8 Re5 Rd8+ Kc4 Rd7 Qc8 Bg6 Nd5 Bf3 Rf5 Re6 Qa8 B3e2 Nc3 Bf7 Rfd5 Rg6 Rg8 Bd8 Rh8 Bd6 Rg8 Bf6 Rb8 Be8 Re5 Rd8 Kd5 Na4+ Ke6 Bf8 Rf5 B6e7+ Rf6 Bd7+ Kf7 Be8+ Kg8 Nc5 Rf5 Ne6 Re5
6n1/2kr2bn/2B1P1b1/1Qp1Rn2/1Nqb2R1/N1P1r1br/1rN1pR2/KRb5 b - - 0 1 legal: proof: e4 b5 g4 e5 d4 exd4 a4 bxa4 e5 h5 e6 hxg4 Bf4 f6 Be5 fxe5 Kd2 c5 Kc1 g5 h4 d5 f4 a5 b4 d3 Kb2 d2 f5 a3+ Ka2 d4 c3 d3 b5 a4 h5 g3 f6 e4 h6 e3 b6 g2 b7 g4 h7 g3 Qf3 d1R Be2 d2 Qc6+ Nd7 b8R Bb7 Bc4 Bg7 Ne2 g1B Rh5 g2 Bb5 Bf2 Qd5 g1B Qc4 Be4 Nc1 Bg3 Qd4 Bg6 Ba6 Nf8 Rb4 Rb8 Qg4 Qd4 f7+ Kd8 Qf4 Qc4+ Nb3 e2 Qe5 Bd4 Qf5 Kc7 Bb5 Rd8 Qc2 Rd7 Bc6 Rg1 Qc1 d1N Re5 Ne3 Qc2 Nf5 Qd3 Qd5 Qb5 Qc4 Nd2 Rh1 Rb1 Rh3 Ka1 a2 Be4 Nge7 Bc6 Rg8 h8N Nh7 Rc1 Rb8 f8R Ng8 Nb1 Rb6 Na3 Rb7 Kb2 a1R Nf7 Ra2+ Kb1 Rd2 Ka1 Rd3 Rb1 Re3 Nd8 Rb8 Na5 Rb7 Nc2 a3 Rf7 a2 Rf8 Qd5 Nc4 Rb6 N4a3 Qc4 Bf3 Rb8 Nc6 Rb7 R4b3 Rb6 N6b4 Rb8 Bc6 Rb7 Kb2 a1B+ Ka2 Bb2 Rf7 Nfe7 Rf2 Nf5 Rg1 Bc1 Ka1 Bh4 Rg4 Bg3 Rb1 Rb8 Qa4 Rb6 Na2 Rb3 Nab4 Rb2 Qb5
2n1q3/n2BPB2/R1pq2r1/pN1bB1QR/8/P1K2n2/1Rnrkq2/B1bq2q1 b - - 0 1 legal: proof: f4 b5 g4 g5 c4 gxf4 d4 bxc4 Nc3 e5 Ne4 exd4 g5 h6 Nf2 h5 Ng4 hxg4 Kd2 Ke7 b4 Ke6 h4 Kd5 b5 Ke4 b6 f5 e3 a5 h5 d5 b7 f3 g6 f4 h6 f2 h7 f3 a3 c3+ Kc2 g3 g7 g2 Bb5 f1Q Bb2 f2 Qd2 d3+ Kb3 c2 Qb4+ d4 Ra2 c1Q Qc4 d2 Qc3 d1Q+ Qc2+ d3 Kc4 Qe8 Bd7 Ne7 g8B Ra6 Kb3 Nbc6 b8R Na7 Rh3 Bh6 Rg3 Rg6 Bf7 c6 Nf3 g1N Nd4 Nf3 Rb6 Qfe1 Rb7 f1N Rh3 Qf2 Kc3 Qb1 Qc1 d2 Nb5 Bg5 Bg4 Be6 Rh5 Bd5 Ba1 Nec8 Rb6 Rhg8 h8B Rd6 Ra6 Rgg6 Bg7 Qd3+ Kb2 Qde1 Bd7 d1Q+ Qd2 Qg1 Bc3 Qd4 Qc1 Kd3 e4 Ke2 e5 Qef2 e6 Ne3 e7 Nc2 Qf4 Qf6 Be5 Qe6 Qh4 Bc1+ Kc3 Qf6 Bh3 Rd7 Qg5 Qd6 Rb2 Rb7 Nc7 Rb4 Bg4 Rd4 Bd7 Rd2 Nb5
3b4/3rNNn1/bP2p1pB/b1r1rbr1/4q1Bq/k2Q2Nr/2n1P2B/3B1KR1 b - - 0 1 legal: proof: d4 b5 b4 c5 a4 bxa4 g4 cxd4 g5 f5 g6 f4 Ra2 hxg6 Ra3 g5 Rh3 g4 Rg3 fxg3 f4 a5 h4 d5 c4 Kd7 f5 Kd6 b5 Kc5 h5 Kb4 h6 g6 b6 a3 f6 e6 f7 g2 c5 a4 h7 a2 c6 a1Q c7 d3 Nc3 g3 Qd2 d4 Nf3 g1R Qd1 g2 Bg5 a3 Bh4 d2+ Kf2 d3 Nh2 a2 Nb5 Nc6 Bf6 Qb1 Nf3 a1B Rh2 Ba6 c8B Nd4 Ne1 Ne7 Qc1 d1R Na7 d2 Rh1 Nc2 Be5 Bc3 Bh2 Nf5 Bd7 Rc8 Ba4 Ng7 Nf3 Be7 f8B Rc5 Nd4 Bf6 Nf5 Qd4+ Ne3 Bd8 Nc8 Qc4 Ne7 Qh4+ Bg3 Re5 N3f5 Rc5 Bb3 Re5 Qb2 Rc1 Qa2 d1B Qb2 Bd2 Qc3+ Ka3 Qc4 Ba5 Qd3 Ne8 Bh6 Ng7 Rh3 Rh1 Rh2 g1R Bh3 Rf8 h8N Rf7 Rg2 Rh2 Bg4 Rh3 Nc6 Rd7 Nce7 Qa1 Nf7 Qd4+ Ne3 Qe4 Nf1 Nb4 Ke1 Rcc5 Kf2 Bc2 Ke1 Qg5 Bh2 Bb1 Kf2 Nc2 Ng3 Qh5 Ngf5 Qh4+ Ng3 Rc1 Rg1 Rd1 Qc3 R1d5 Qd3 Rg5 Kf1 Rde5 Ba4+ Bc3 Nh8 Nd4 Nc8 Qf4+ Qf3 Bf5 Ne7 Qe4 Bd1 Nc2 Qd3 Bb5 Nf7 Ba6 Qd6 Ba5 Qd3+
1Br1R1n1/RnPn4/1q3RQ1/1pN1rbp1/r7/2Kbn1Pr/3R2N1/N1b3qk b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Kd2 h3 Bg2 hxg2 Ke1 exf6 Bg5 f5 Bc1 f4 Kd2 Ke7 e4 Ke6 h4 Ke5 c4 g5 a4 b5 c5 f5 c6 d5 h5 f3 a5 b3 h6 d3 a6 d4 a7 f2 h7 f1R Qh5 f4 Nh3 g1Q Qf7 b2 Nf2 f3 Qc4 Qb6 c7 Re1 Rh5 Ba3 Qc6 Bf5 Qb7 Nd7 Rh6 Rc8 Qc6 Re3 Nh3 f2 a8N f1R Rf6 Rf4 Qc2 Rg4 Nf4 Re1 Ng2 Re3 Nc3 b1B Na4 Rh4 Nc5 Rh3 Nb3 Bb2 Ne1 Ba3 Kd1 d2 Ra2 Rh4 Na1 Bb2 Qc6 Bd3 Ra7 Ba3 Bb2 Rh3 Bc3 Bc1 Bb4 Be2+ Kc2 d1N Be7 Nc3 Bc5 Na4 Ng2 d3+ Kb3 d2+ Kb4 Qa6 Nb6 Bd3 Kb3 d1N Kb4 Nab2 Na4 Nc4 Bb6 Rh4 Nc5 Na5 Qe6+ Kd4 e5 Nb7 Qe8 Re1 e6 Re5 e7 Ne3 Qg6 Kd5+ Kc3 Ra4 Ne6 Ke4 e8R Kf3 Nc5 Kg4 Rd8 Kh3 Re8 Kh2 Rd8 Nh6 Re8 Kh1 Rd8 Rf8 h8R Rf7 Rhe8 Rh7 Ra8 Rh8 Ba7 Ng8 Bb8 Qb6 Ra5 Rh3 Ra7 Nf8 Rd4 Nd7 Rdd6 Bb1 Rd1 Bbd3 Rd2
1NB1nbB1/3Bq1pN/5n1b/1Q2p1rq/4P2q/1RNN2P1/K1nr3k/n3b2b b - - 0 2 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Qg4 f5 Qe2 h5 Kd1 h4 Nb3 f4 Be3 fxe3 Nd2 Qc7 Nc4 Qa5 Nd2 Qd8 Kc1 Rh5 a4 Qa5 f4 Qb6 f5 Nf6 g3 Qc7 Rb1 Qd8 Rb3 Ng8 Kb2 Rh8 Rc3 Rh5 Rc6 Rg5 Rg6 Rh5 Rg4 Rh8 Rf4 h3 Rf2 Rh4 Rg2 hxg2 Kc1 Rh3 Kb2 Rh8 c4 Kf7 h4 Kf6 h5 Kg5 f6 d5 a5 e5 f7 b5 a6 d3 c5 d4 c6 b3 h6 b4 c7 Qe7 h7 Nf6 a7 Nbd7 Nb1 d2 Qf3 d1Q Rh3 d3 Nd2 e2 Rh2 e1B Qe2 Ne8 Rh3 Ndf6 Rh1 Bg4 c8B Bf3 Bg4 Rd8 Nb1 d2 Ka1 b2+ Ka2 Rd6 a8B b3+ Ka3 Qc1 Be6 d1Q Qd3 Qf4 Ne2 g1B Bd7 Qh4 Qa6 Be3 Nbc3 b1N+ Kb2 Bf4 Nc1 Na3 Qb5 Nc2 Bd5 Na1 Nd3 Bc1+ Kb1 b2 Ka2 b1N Bfh3 Na3 Rh2 Bh1 Rb2 N3c2 Rb3 Bf4 Bc8 Kh5 Bhd7 Bh6 B5e6 Kg5 Bc4 Qdh5 Bd5 Rg8 h8N Re6 Ng6 Kg4 Bc4 Kh3 Bd5 Kh2 Bc4 Qd8 Ne7 Rb6 Nc6 Qe7 Nb8 Rd6 Nc1 Rd2 Nd3 Rh8 Bd5 Be3 B5e6 Rh6 Bd5 Rg6 Bc4 Bh6 Bce6 Qc5 Bd5 Rg5 Bc4 Bd6 f8N Qc7 Nh7 Bf8 Bf7 Qc5 Bc4 Qe7 Bg8
1b1Rbn2/NN4p1/3n2P1/rb3Q2/1q3R1K/2P3pR/1Rrk1bNn/1bBb2n1 b - - 0 1 illegal: No possible last move
7r/3pq1R1/Npk1Rb2/1R1NnN2/Q3n1p1/4bP2/1PbrRr2/rB2rnK1 b - - 0 1 illegal: No proof kernel
q3rq2/p5r1/1nk2qb1/n3RpQN/2BRN1p1/P1R4q/4K1P1/rR3Nbq b - - 1 2 legal: proof: f4 d5 c4 b5 e4 dxe4 b3 bxc4 f5 h6 f6 gxf6 Bb2 f5 Bf6 f4 Bg5 hxg5 d4 Kd7 h4 e5 b4 c5 d5 g4 d6 c3 a3 e3 h5 c4 b5 f3 b6 e4 b7 f2+ Ke2 c2 h6 c1Q h7 c3 Qc2 Qf6 Qd3 c2 Qb5+ Nc6 b8R Ne7 Rh4 Nd5 Rh6 Rg8 h8R Rg7 Qb3 Nb6 R8h7 Na5 Nc3 Kc6 d7 Bc5 Na2 Bb7 Rg8 Re8 Rh5 Qcb2 Rf8 Qbc3 Rb1 c1R Re5 Bd4 Rh3 Bc5 Rb2 Ra1 Nf3 Bd4 Rb1 Ba6+ Kd1 Bd3 Nh2 Bc5 Qc4 Qb3+ Qc2 e2+ Kd2 Qd5 Qc1 Bc2+ Rd3 Qb3 Rd4 Qh3 Nc3 Bd3 Rb2 Bb1 Rc2 e3+ Kd3 e1Q Ne4 Qc3+ Ke2 Qb3 Rc3 Qd5 Nd6 Bg6 d8N+ Kd7 Rg8 Qa8 Ne4+ Kc7 Ne6+ Kc6 Kd3 e2+ Qe3 e1Q Nf4 Qg3 Nh5 Qh3 Be2 Qh1 Nf1 Qd6 Kd2 Qf8 Bc4 f6 Qg5 f5 Nfg3 f1Q Ke3 Qb1 Ke2 Qf6 Nf1 Qb4 Rd1 Be3 Rd4 Bg1 Rh8 Qbf8 Rh7 Rg8 Rb7 Rg7 Rb8 Na4 Rb2 Nb6 Rb1
n1R5/1bB2P2/bb2n3/2RprqQ1/6p1/1N1rpbk1/1BRbPbBb/5B1K b - - 0 1 illegal: No proof kernel
N3q3/1K1np1r1/NB3pqr/3kBP2/R3b1bq/n4prP/1bB1N3/bQ3B2 b - - 0 1 illegal: No proof kernel
1n1q4/3kp3/P1N1N2r/N3pr2/4nrqQ/1bN1p2n/B3Pb1b/bB3KBR b - - 0 1 illegal: No proof kernel
q1R4R/2Q1NK1R/2br1nn1/k4Rr1/2pp4/3P2p1/nP2rB1b/b1q1Nr1N b - - 0 1 illegal: No possible last move
1k1R2Br/b1p1b1p1/K2P1N2/1Nq3qq/2R1rN2/pRP2Qn1/q2N2b1/3n1r2 b - - 0 1 legal: proof: g4 d5 e4 dxe4 a4 h5 b3 hxg4 a5 f5 a6 f4 Bb2 bxa6 Bf6 a5 Bh4 a4 Bg3 fxg3 Ke2 Rh4 f4 Kd7 d4 e5 b4 a5 c3 g2 d5 g3 d6 e3 Kd3 e4+ Kc4 e2 Kb5 e1R f5 e3 h3 e2 f6 Nc6 f7 Nf6 Qd5 Ne4 Ra3 Ne7 Nd2 Nf2 Ngf3 g1B Nd4 g2 Rb3 Nd1 Qh5 Rf4 h4 Nf5 Qg4 Bf2 h5 g1Q h6 Bb7 h7 Kc8 h8R Qg5 R1h4 Bg2 Qg3 Rb8+ Ka6 Qh1 Rg4 Qhh5 Rh4 Rg4 Qf3 Ng3 Rg8 a3 b5 a4 b6 a2 Nb5 a1Q b7+ Kd7 Rh8 Be7 f8N+ Kd8 Rg8 a3 Ng6+ Kd7 Rc8 Ba7 Rh8 Rg8 b8N+ Kc8 Nd7 Qa2 Nf6 Rb4 Re4 Kb8 Nf4 Rc8 Rd8 Rd4 Rd7 Rh8 Re5 Re4 Rc5 Bh1 Bh3 Bg2 Bg4 Rh1 Rc4 e1Q Bf5 Qe3 Be6 Rf1 Bg8 Qec5 Rd8+
7r/2PN1p2/3B2r1/QpBB2b1/2q1n1nN/1Rr2rbp/kr5P/2rBN1Kb b - - 0 1 legal: proof: e4 a5 b4 axb4 a4 g5 f4 gxf4 e5 c5 e6 c4 Ra2 dxe6 Rb2 e5 Rb3 cxb3 Kf2 e4 Ke2 Bg4+ Ke1 Bc8 Kf2 Kd7 c4 Kc6 d4 b5 g4 e5 c5 Kd5 g5 h5 g6 b2 g7 h4 a5 h3 a6 f3 c6 b3 a7 e3+ Ke1 e2 Kf2 Kc4 c7 e4 d5 e3+ Kg3 f2 d6 Qh4+ Kf3 Nf6 g8N Ne4 d7 Nc6 d8B Bb7 Qd2 Be7 Nh6 Bg5 Nc3 b1R Bf6 b2 Na4 Kb3 Be7 e1B Nc5+ Ka2 Be2 Rag8 a8B Rg6 Bd1 e2 Nf5 Ra1 Qc3 b1R Ba3 Rb2 Nd7 Rc1 Bed6 Rcc2 Qa5 Rc1 Bf4 f1R+ Ke3 Rc4 Nf3 Bg3 Ne1 Ne5 Rg1 Qg4 Nh4 Qe6 Rg2 Qd5 Rf2 Ng4+ Kf3 Rc1 Bfd6 Qc4 Bdc5 Bc8 Bd5 Bb7 Neg2 e1R Bd6 Ree2 Ne1 Rec2 Bdc5 Rg1 Re2 Rg2 Re3 Rc3 Bd6 Rgc2 Bac5+ Ra3 Rb3 Rc3+ Nd3 Rbb1 Ke2 Rb2+ Kf1 Bc6 Kg1 Ba8 Ne1 Rf3 Rb4 Bc6 Qb6 Rac3 Qa5+ Kb1 Ra4 Rf4 Nhg2 Nef2 Nh4 Bb7 Be6 Bh1 Bd5 Rff3 Rb4 Ne4 Qb6 Ka1 Rb3 Ka2 Qa5+
brN1Nb2/2bpB3/1n2b2n/1N1r2pB/1RB1P1P1/3n1q2/b2kQBp1/K1b5 b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 h4 f6 exf6 Ra3 f5 Rc3 f4 Rg3 hxg3 Kd2 Ke7 c4 Kd6 Kc2 Ke5 Kb2 Ke4 h4 f5 b5 a5 e3 g5 b6 f3 h5 a3+ Ka2 f4 h6 g2 c5 f2 c6 a4 h7 f3 b7 d3 c7 d2 Bc4 f1N Rh5 f2 Bd5+ Kd3 e4 Nc6 b8B Nh6 Rh2 Nb4+ Ka1 a2 Bb3 Qf6+ Nc3 Bb7 c8B Ne3 Be5 f1B Bf7 Ra5 Nb5 Ned5 Ne2 Qf3 Nc7 Ba8 Bh5 Nb6 Nc3 Rd5 Bg3 Ke3 Ba3 Nd3 Qb1 d1B Be7 Kd2 Ba6 Bb3 N3b5 Be2 Qf1 Bed1 Bb7 Bc4 Bc8 Bdb3 Ne8 Nf7 Ned6 Nh6 Ba6 Bg7+ Nc3 Re5 Bf2 Be6 Qh1 Rd5 Bc4 Rb8 h8N Bf8 Nc8 Nb4 Kb2 a1B+ Kb1 a3 Nb5 Bd4 Nf7 Be5 Nfd6 Nd3 Ne8 Bc7 Qg1 a2+ Ka1 Nf4 Rh4 Nd3 Rh1 Ne1 Kb2 a1B+ Kb1 Bb2 Rh3 Qf6 Qf1 Bc1 Re3 Qf4 Ka1 Ba2 Rb3 Nd3 Rb4 Qf3 Qe2+
1rbb4/pb5Q/1rR5/N2pq3/B5Rr/1r2p2n/rNK1P1P1/kNn1RNr1 b - - 0 1 illegal: No proof kernel forced: bxLB
2n2Nqb/R1p1bQn1/2Pp1B2/K1brR3/1PN1b3/nbr1b3/4p3/NkN2R2 b - - 0 1 legal: proof: e4 b5 d4 e5 g4 exd4 a4 bxa4 e5 h5 Bd3 hxg4 Be4 f5 Bf4 fxe4 Bd2 Bb7 Bc1 Bc8 Kd2 Kf7 h4 Ke6 c4 Kf5 f4 g5 b4 a5 h5 d3 Kc3 a3 c5 d6 h6 a4 h7 a2 c6 g3 e6 a3 e7 d2 e8N e3 Qf1 Ke4 f5 d1B f6 g2 f7 e2 Rh3 g4 Be3 g3 Rh6 Nd7 Bf2 Be7 f8R Ndf6 Ba7 Nh5 Kc4 Bb3+ Kb5 Kd3 Qf7 Kc2 Re6 Ng7 Nh3 g1B Bb6 g2 Re5 Be3 Nf6 g1B Ba7 Bf5 Ng4 Be4 Nd2 Qe8 Rf1 a1B Nc4 a2 Bd4 Ra3 Nf4 Bb2 Bc3 a1N Nd3 Bc5 Bd4 Be3 Nc1 Kb1 Bc3 Nc2 Bd4 Ba4+ Ka5 Rd3 Bc3 Bb3 Bd4 Qc8 Rd8 Qe6 Ra8 Na3 Ra7 Rd2 Bc3 Rd5 Bd4 Bf6 Bc3 Ne7 Bd4 Rg8 h8N Nc8 Ng6 Be7 Nf8 Rh8 Bc3 Rh3 Bd4 Qg6 Bc3 Qh7 Bd4 Qg8 Bc3 B3g5 Nge3 Rg3 Nc2 Bge3 Bd4 Bf4 Rh5 Ne8 Bg1 Bh8 Bd4 Ng7 Na1 Rc3 Bf6 Bfe3 Re5
n2b1K1R/1k2n3/1Q1n1n1p/3r3q/q1rPp1n1/1B5N/BNp1P1bB/3Bn2N b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 g4 dxc4 h4 g5 Ra3 gxh4 g5 f6 Rg3 f5 Rg4 fxg4 d4 Kd7 Kd2 Kc6 Ke3 e5 Ke4 b5 f4 g3 g6 b3 a5 b4 f5 g2 a6 h3 f6 b2 a7 b3 g7 h2 f7 c3 Qd2 c2 Qa5 h6 Nf3 g1Q Qa1 Qh4+ Bf4 c1N Nc3 b1N Qa3 b2 Na4 Bh3 Nd2 Bg2+ Kf5 e4 Kg6 Nc3 Nc5 b1N Qb2 Be7 f8N Na4 Kf7 Nf6 g8B Na3 Nd3 Nb6 Qc2+ Kb7 Qd1 c5 Ne6 c4 Nf2 c3 Nc4 Nd3 Qb3 Nb5 Ng5 Ne1 Nb2 Nc6 Ngh3 Bd8 Kf8 Rc8 Bd6 Ne7 a8B+ Ka7 Bf4 Qh5 Bc6 Nd6 Ba4 Na8 Qb4 Rh7 Ba2 Rc4 Bd1 c2 Qa5+ Kb7 Qb4+ Qb5 Qc5 Qa4 Qb6+ Kc8 Bg3 Rg7 Be5 Rg5 Bf4 Rd5 Bg3 Bf3 Bg2 Qf1 Rg1 h1N Bb3 Rc7 Bh2 Rc4 Ng4 Nf2 Ba2 Nfd3 Ngf2 Ne5 Nh1 Neg4 Bb3 Qf2 Bf1 Qh4 Ba2 Ne3 Rg8 Neg4 Rh8 Qh5 Nf4 Qd7 Bh3 Bg2 Bb3 Ne5 Be6 Neg4 Bg8 Qa4 Nh3 Rc6 Qa5 Kb7 Bf7 Rdc5 Bfc4 Rd5 Ba2 Rcc5 Bcb3 Rc4 Qb6+
R1bkN2n/Q1np1p2/rB1Kp2r/3n2R1/1r1R4/b5rN/2R1PPqb/4N1b1 b - - 1 2 legal: proof: g4 a5 b4 axb4 d4 c5 a3 cxd4 Bh3 h5 Bg2 hxg4 Bd5 Rh5 Kd2 Rh8 Ba2 b3 Ke1 bxa2 Kd2 b5 Kd3 Ba6 Ke4 g5 Kd5 e6+ Ke5 b4 h4 d3 c4 d2 a4 g3 c5 b3 a5 b2 c6 g2 c7 g4 c8N g3 h5 Ne7 Nh3 g1R Qf1 d1N Be3 g2 Nd2 b1R Bb6 Nc3 Nf3 Qc7+ Nd6+ Kd8 Qe1 Bc8 a6 Rb2 a7 Na6 h6 Ncd5 Rd1 a1B Qa5 Ng6+ Kd4 Be7 Rc1 Bf8 Ne8 Ba3 h7 Rb1+ Ke4 Be5 Rc2 Bh2 Ne1 Rb3 Nd3 Rgb1 Rd1 g1B Ne1 Rf3 Rd4 Rb4 Ng5 Rh3 Qa4 Rg8 h8R Rh5 Rh7 Nh8 Rg7 Rh6 Rg6 Rg7 Nh3 Rg8 Bc5 Qd6 Bb6+ Nac7 Rg3 Qf8 Ke5 Qg7+ Kd6 Qg6 Qa5 Qe4 Qa6 Qg2 Qb7 Rg5 Qb8 Re5 Rg5 Re3+ Rf4 Reb3 Qb7 Rg3 Rd4 Rb8 Qa6 Rb7 a8R Ra7 Qb7 Ra6 Qa7
r2k4/2bBp2p/1brNn3/p7/2nR1B1P/PB3b1R/R1QqqqpK/4n2B b - - 0 2 legal: proof: f4 d5 b4 c5 e4 dxe4 g4 cxb4 Nc3 g5 Nce2 gxf4 Ng3 fxg3 h4 f5 c4 a5 d4 b5 a3 b3 d5 b4 g5 f4 g6 e3 d6 e2 c5 b2 c6 b1N c7 f3 g7 b3 Ra2 b2 Bf4 Bg4 c8B Nc6 Bh6 Nd4 Bh3 Nd2 Bf4 b1Q Rc2 Nh6 g8B Qa2 Bb3 Nc4 Qc1 Nf7 Ba6 Ne6 Be3 Bh6 Bf4 Nfe5 Bd2 Be3 Bb7 Bb6 Bf4 Rf8 Rb2 Rf6 Qc2 Qd7 Rh2 Kd8 Bc6 Qa7 d7 Rh6 Bg2 Bc7 Bh1 g2 Bb5 Qa6 Kf2 Nd3+ Kg3 f2 Bc6 f1Q Rh3 e1B+ Kh2 Qf2 Ne2 Bf3 Ng3 Bd2 Bb5 Be3 Ne4 Beb6 Nd6 Ne1 B5a4 Qb1 Ra2 Qd1 Bc6 Qdd2 Qd3 Nf8 Qc2 Ne3 Ne8 Qae2 Bcd5 Rc6 Be6 Nc4 Ng7 Bd6 Nf5 Kc7 d8R Be5 Bc8 Ne6 Rd4 Bd6 Bd7 Kd8 Ba4 Be5 Bb3 Bec7 Nd6
b2B1qBN/pp1k1p1K/1QNr3P/nqp3Rr/1P4B1/5q2/nb1nN1r1/5N2 b - - 0 1 illegal: Other
4q2k/KR1rbN2/pQ4R1/Rp3q2/1n1RB1b1/PP1r1B1r/1Bp1q1bp/7n b - - 1 2 legal: proof: h4 d5 c4 dxc4 f4 e5 h5 exf4 b3 c3 Na3 g6 Nc4 gxh5 Nb2 cxb2 Rh2 h4 Rh3 Qd6 Rh1 Qd8 Kf2 b1R d4 c5 e4 b5 g4 h5 g5 f5 e5 Kf7 e6+ Kg7 e7 a6 e8R h3 d5 h2 a3 h4 d6 h3 g6 c4 d7 c3 Be3 c2 Be2 f3 Qe1 f4 Bd4+ Nf6 Re4 Ra7 Qa5 Qe8 d8R Nc6 Bb2 Nb4 Qb6 Bg4 Rdd4 Rd7 Re7+ Kg8 g7 Nh5 Bd3 Rh6 Be4 Rd1 Rb1 Rd3 Rd1 Rd8 Rb7 Be7 Rd6 Ng3 Rg6 R3d7 Rd4 Kh7 g8B+ Kh8 Bgd5 Rh4 Ke1 f2+ Kd2 f1Q Kc3 Qe2 Nf3 Rh5 Rg1 h1B Ne5 h2 Bf3 Bg2 Bde4 Rh3 Nf7+ Kh7 Rgd1 Nh1 R1d2 Nc6 Ra4 Nb4 Nh6 Kh8 Ra5 Bd6 Kd4 Bf8+ Bd5 Be7 Be4 f3 Nf7+ Kh7 Rd3 f2 Rd1 f1Q Bf3 Rd6 Kc5 R8d7 Rd4 Qff2 Bde4 Qff1 Qd8 Rd5+ Kb6 Qff2 Ne5 Kh8 Ka7 R5d6 Qb6 Qff1 Rc4 Rd3 Rd4 Qff2 Bc6 Qff1 Bfe4 Qf6 Bf3 Qff8 Bce4 Qf5 Nf7+
1R1K3b/p3R1p1/b1p3PR/nRnPnrnN/q4r2/3q4/2B2Npn/1k1N1Q2 b - - 0 1 illegal: Other
N7/1pNr1Q1p/q2npnb1/kP1Nrr1R/1q3r1R/5R2/Bpr1Pb2/R6K b - - 1 2 legal: proof: g4 c5 h4 a5 d4 cxd4 b4 f6 g5 fxg5 b5 gxh4 Ba3 h3 Bb4 axb4 a4 g5 c4 d5 f4 Kd7 Kf2 Kc7 f5 Kb6 c5+ Ka5 c6 d3 c7 h2 Kg2 g4 f6 g3 f7 d4 Nc3 d2 Qc1 d1Q Ne4 b3 Nd6 d3 Qh6 d2 Qg5 b2 Qd5 Qb3 Qe4 d1R Nf5 Nd7 Qh4 Ne5 Qf6 Qb4 Qh4 Rd7 Nf3 Nc4 N3d4 Nf6 Ne6 Nd6 Qc4 Bg7 Qf4 Re8 f8R Ra6 Rf7 Rc6 Ne3 Rc2 Nd5 Bh6 Qf5 Be3 Qg6 Bf2 Rf8 Nfe4 Rf3 Nf6 Qf7 Rf8 Rg1 Re8 Kh1 Rf8 Bh3 Qe8 Qg7 Qg6 Qf7 Qh6 Rgd1 Re8 Rd4 Rf8 Kg2 h1R Rh4 Rf1 Bf5 Re8 Bd3 Qg6 Bc4 Qh6 Ba2 Rf8 Kh3 g2 Kh2 g1R Rh5 Rg5 Rh4 Bg1+ Kh1 Re5 Rh5 Rd1 Rh4 Rd4 Rh5 Rf4 Rh4 Rdd8 Rh5 Bd7 c8R Be8 Rc4 Rd7 Nec7 Bf2 Re4 Rff5 Reh4 Rf4 Qg8 Bg6 Qf7 Rff5 Rff4 e6 Rb1 Rc8 Rf3 Qe3 Qf8 Qb6 Ra1 Ng8 Na6 R8c4 Qf7 Rcf4 Nac7 Qa7 Nf6 Kb6 a5+ Kc5 Nfd5 Nf6 a6 Qb6 a7 Qa6 Nc3 Kb6 a8N+ Ka5 N3d5
4b1n1/rQpN4/p3N3/1nRBq1pn/8/P3RKnq/4RPpN/nr2bN1k b - - 0 1 legal: proof: g4 d5 e4 dxe4 c4 h5 b3 hxg4 c5 f5 c6 f4 Ba3 bxc6 Bb2 c5 Bf6 c4 Bh4 Na6 Bg3 fxg3 Qf3 Nb8 Qe2 Qd3 Qd1 Qd8 Ke2 Kd7 d4 Ke6 h4 Kd5 a3 g5 b4 e5 h5 c3 h6 a6 h7 e3 b5 Ke4 d5 g2 b6 g3 d6 c2 b7 c1N+ Ke1 e2 d7 Ra7 Qc2+ Nd3+ Kd2 e1N Ke2 Bb4 Qb2 Nc6 b8R Nc2 Qc1 Be1 Rh6 N6d4+ Kd1 Nf4 Rh3 Nb5 Nf3 g1N Nh2 Nge2 Ra2 Nh5 Qb2 Na1 Nd2+ Kf4 Rb7 e4 Bg2 e3 Bd5 g2 Qb3 Neg3 Ndf1 Qe8 d8N Bd7 Rb6 Qe5 Re2 Be8 Rc6 Qe6 Rc5 Qe5 Nf3 Kg4 Ne6 Qc3 Rh1 Qe5 N3h2+ Kh3 Qb2 Ngf6 Rg1 Rf8 h8N Ng8 Qb3 Rf4 Rh1 Rb4 Nf7 Qf5 Ne5 Qg4 Qc4 Rb1+ Qc1 Qf3 Nd7 Qf5 Ra2 Ba5 Nd2 Nd4 Re1 Bc3 Nhf3 Bb4 Nf1 Ba5 Rc3 e2+ Kd2 Qg4 Qb2 Qf5 Qb8 Nb5 Qb7 Qg4 Rc1 e1Q+ Kd3 Qe5 Re2 Qh4 Rb3 Be1 Rc5 Qb2 Ke3 Qg4 Nfe5 Qh4 Kf3 Qbd4 Ne3 Kh2 N5g4+ Kh1 Nf1 Qh3 Rbe3 Qe5 Ngh2
QK1R4/2pNpr2/q1Nrpk1p/2NR1B1P/5nR1/8/P1qNq3/b1nbbb2 b - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 f4 axb4 e5 Nd7 e6 fxe6 Bb2 Nb8 f5 g6 Be5 g5 Bf4 gxf4 Ke2 Kf7 Kf3 b5 Ke4 b3 Ke5 f3 d4 h6 g4 c3 h4 f2 h5 b4 g5 b2 f6 c2 d5 c1B d6 b3 d7 Rh7 Qe1 Bd2 Qe4 Ra6 Nf3 Bb7 Rh4 Bg7 Rg4 Rd6 Nc3 b1Q Bd3 f1B Na4 b2 Nc5 Qe1 Rd1 b1Q Bc2 Ba5 Rd5 Qc8 Nd2 Qe2 Kd4 Na6 Bd3 Qc2 d8N+ Kf8 g6 Nb4 Qf3 Ba8 Be4 Nd3 Nc6 Qa6 Bf5 Nc1 Qg2 Bh8 Qf3 Rg7 f7 Nf6 Qe4 Rh7 Qh1 Kg7 f8N Bb4 Nfd7 Bb7 Nc4 Be1 Nd2 Ne4 Qf3 Nf2 Qa3 Nfd3 Qa4 Kg8+ g7 Kf7 Qa5 Nf4 Qa4 Qab5 Qa8 Ba6 Nde5+ Kf6 g8R Qb7 Rd8 Bc4 Ncd3 Qc8 Kc5 Bb3+ Kb5 Rf7 Ka5 Qb8 Ka6 Qb5+ Ka7 Qa6+ Kb8 Qb1 Nc5 Bd1+ Ncb3 Qc2 Nc5 Bg7 Rh4 Kg5 Ned7 Ba1 Nf8 Kf6 Rg4 Bh3 Bh7 Bg2 Bf5 Bf1 Nfd7+
1q3B2/b1B5/1pR1pPkr/1P1Q1q1n/3n3b/1rp4N/1R1R2Bp/1BKbr1b1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 b5 fxe4 Na3 d5 Nc2 dxc4 Nb4 axb4 a4 Kf7 f4 h5 d4 c5 Kd2 e3+ Kc2 e2 g4 e1B d5 c3 d6 b3+ Kb1 b2 f5 c4 g5 h3 a5 h4 a6 h2 a7 h3 d7 c2+ Ka2 b1Q+ Ka3 c3 Qf3 Nc6 Bg2 Rh6 Ra2 Nf6 Rb2 Nh5 f6 Nd4 Qd5+ Kg6 Be3 Qe8 d8B c1B Bc7 Qf5 Ka2 Bh4 Be4 e6 Kb1 Bc5 Bef4 b6 Bfd6 Bf4 Bf8 Bb7 Rd2 Bfd6 Kc1 Qb8 Bb1 Bdg3 Qd8 Bf3 Qd5 Bd1 Rb2 Qb7 Rd2 Rc8 a8B Qb8 Qe5 Rd8 Bg2 Rd5 Qd6 Re5 Qd5 Re1 Ne2 Be5 Nf4+ Kf7 Rf1 h1R Rff2 h2 Nh3 Kg6 Rb2 Beg3 Rfd2 Qa8 Bd8 Bb8 Bc7 Ba7 Bcd6 Qb8 Bc7 Kh7 g6+ Kh8 g7+ Kh7 g8R Rhg1 Bg7 Kg6 Rc8 Rgf1 Rb3 Rf2 Bf8 Rfe2 Ra2 Rb2 Rb4 Rb3 Rd2 Ra3 Rbb2 Rb3 Ra2 Nc6 Rab2 Bg1 Be5 Nd4 Rc6 Kh7 Bed6 Kg6 Bc7
1BB2bN1/B2p1b1n/1p2R3/N1p1pn2/nk1P2Q1/rP1qn2q/4r2N/2K1N1q1 b - - 1 2 legal: proof: e4 b5 h4 g5 c4 bxc4 a4 gxh4 Ra3 f5 Rb3 fxe4 Rb6 axb6 g4 h5 f4 e5 b3 Ke7 g5 Kd6 d3 Kc5 Kd2 h3 f5 c3+ Kc2 h4 a5 h2 g6 h3 a6 e3 d4+ Kb4 f6 e2 g7 Bb7 f7 Nf6 g8N Nh7 a7 Na6 Na3 Bd5 Nc4 Qg5 Nf3 Qg3 Na5 Nc5 Ne1 Na4 Bg5 c5 Bd8 Qe3 Bc7 Qd3+ Kc1 c2 Bb8 Be6 Rg1 h1Q Rg6 h2 Bg2 Qf1 Bb7 h1N Bc8 Qfh3 Rh6 Bd5 Rd6 Ng3 Re6 Bg7 f8B Nf5 Bfd6 Bf8 Nh6 Rg8 Ng4 Rg7 Nh2 Rg2 Bdc7 Rf2 Ng2 e1N Qg4 Re2 Bd6 Nf3 Ne1 Nd2 Rg6 Kc3 Nb7 Bh6 Nef3 Nf8 Bbc7 Bf7 Re6 Rb8 a8N Nh7 Nh4 Kb4 N4f3 Nc3 Kb2 Bf8 Qf4 Qe3 Qg4 Qg1 Ne1 Qh5 Bd8 Qh4 Nc7 Qh3 Ne8 Nf1 Nf6 Ra8 B8c7 N1e3 Ng8 Ra3 Na5 Be8 Bb8 Bf7 Ba7 Na4+ Kc1 Rg2 Qe2 Rf2 Kd2 c1Q+ Kd3 Qc4+ Kd2 Qa6 Kc1 Qd3 Qg4 Re2 Bdb8
1rB2K2/4p2R/p1r3Rn/B2p1Bkn/Pn4b1/q1p4n/R1rPr2b/1Q1R2N1 b - - 0 2 legal: proof: f4 b5 g4 g5 c4 gxf4 e4 bxc4 Nc3 f5 g5 fxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 Kf2 Kf7 h4 Kg6 b4 d5 a4 c5 b5 c3 b6 c2 b7 e3+ Ke2 f3+ Kd3 e2 Kc3 e1R Bc4 f2 Ba6 f1N Ra2 c4 Kd4 g3 Kc5 c3 Ba3 c1R Bb4 g2 Ba5 Rc2 Qb1 Nc6 b8R Nb4 Rb6+ Qd6+ Kb5 Bf5 Bc8 Ng3 Ra6 Kh5 g6 Re2 g7 Nh6 g8B Bg4 Bh7 Bg7 Bhf5 Be5 Rc6 a6+ Kb6 Qd7 Rg6 Qd6+ Kb7 Nc6 Kb6 Qa3 Kb7 Nb4 Kb6 Bg7 Kc7 Be5+ Kd7 Rb8 Ke6 Rf8 Kd7 Rf6 Ke8 Rc6 Kf8 Rc1 Nh3 Rc2 Rd1 Ne4 Ng1 Bh2 Re6 Nf6 Rd6 Nf7 Re6 Kh6 h5 Kg5 h6 Nh5 h7 Nh6 h8R Re3 Ne2 g1N Rh7 Nh3 Ng1 Re2 Rg6+
k4N2/1pq3bp/1b2QN2/3p1b1P/2r2N1P/K1nrRpNp/Bn1Rq3/4q1R1 b - - 0 1 illegal: Other
1b2Rk2/1K5n/1nB2N2/1rBb3N/1pN1Pp1Q/2pbp2q/pr1NPB1b/1b6 b - - 0 1 illegal: Other
2R3qk/P2B1N2/qQ3KRN/2N3p1/1b2r1Pn/1p1pppRb/2p3p1/2rN2n1 b - - 0 1 illegal: No proof kernel
n1N2BB1/6Kb/2n3P1/nQn5/BrR2N1n/1q1n1BQP/kp3b2/7q b - - 0 1 legal: proof: d4 d5 b4 a5 e4 axb4 c4 f5 exf5 g5 cxd5 c5 Qf3 cxd4 Qd3 Bg7 Qd1 Bf8 a4 b5 g4 Ra6 f4 Rc6 dxc6 gxf4 g5 h5 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Ke2 Kf7 Kd3 e5 Ke4 f3 c7 g3 f6 Ke6 h3 g2 a5 f2 a6 b3 f7 b4 a7 b2 a8B b3 Bc6 d3 Qf3 d2 Qh5 d1Q Bd2 Na6 Qe2 Rh4+ Bf4 Bc5 f8Q Ne7 Nf3 g1N Ba8 Nc6 Na3 b1N Qd3 b2 Qh8 Qb3 Qb5 Qdd1 Bg2 f1N Qe2 Ne3 Bb7 Nd5 Nb5 Bf2 Ne1 Na3 Na7 Nf3 Qb5 Nb6 Qg7 Nac4 Nd3 Na8 Rg1 Qa1 Rc1 N4a5 Rc4 Qh1 Bf1 Bd7 c8B Rg4 Be2 Nh4+ Bf3 Kd6 Qg8 Be8 Bd7 Bg6+ Bf5 Bh7 Nc8+ Kc7 Kd5 Nc5 Bc1 e4 Bd7 e3 Nf4 e2 g6 Nd8 Ke5 e1N Kf6 Ndc6 Kg7 Ned3 Qf8 Nb6 Be6 Na8 Bg8 Kd7 Qe8+ Kc7 Qe1 Kd7 Na7 Kd6 Qg1 Ke5 Qg3 Kd6 Nc8+ Ke5 Ne6+ Rf4 Bd1 Kd5 Bd2 Rg4 Bg5 Re4 Be7 Rd4 Bf8 Re4 Ra4 Rb4 Nf4+ Kd4 Bf3 Kc3 Ba6 Kc2 Bb7 Kb1 Bd1 Rd4 Rc4 Ka2 Bc2 Qa3 Ba4 Qb3 Rc1 Rb4 Rc4 Ne7 Be4 Nec6 Bf3
q2rBB1N/n1pbnpp1/K1B2P2/1RQq4/p1B1P2b/R1k5/8/n6Q b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 d4 e5 dxe5 dxc4 b5 Ra6 bxa6 b5 Bd2 bxa4 Bc1 a3 Nd2 a2 Nxc4 Be6 Nb6 Bd7 Nc8 Bxc8 f4 Ke7 e4 Ke6 Ke2 a4 h4 g3 f5+ Ke7 h5 g2 h6 Qd4 h7 Qa7 Kd3 Qb6 Kc4 Be6+ Qd5 Qa7 Kb5 Nf6 Ba3+ Ke8 Ne2 g1Q Nf4 Bc8 e6 Bb4 e7 Be1 Ng6 Bh4 Bc4 Qgd4 Rhb1 Ng8 f6 Nc6 Qc5 Qa8 a7 Bd7 Ka6 Qe5 Rb5 Qd5 Rg1 a1N Rg2 Be6 Rd2 Kd7 Ra2 Bf5 e8B+ Ke6 Bb4 Nge7 Ba3 Rg8 Nh8 Ke5 Bb4 Bd7 Ba3 Qb8 a8B Na7 Bc6 Qa8 Qe3 Ng6 Bf8 Ne7 Qa3 Kd4 Qc5+ Kc3 Ng6 Bg5 h8Q Bh4 Qh5 Rh8 Qd1 Rh5 Nh8 Rg5 Qdg1 Rg2 Qh1 Rb2 Ra5 Rb8 Rb5 Rd8 Ra3+
4B3/n3pNrb/1P3N1b/K1Q3b1/b5bB/5knB/qr1n1PBQ/4R2r b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 cxd4 Ra3 f5 exf5 b5 axb5 axb4 Bd3 bxa3 Be2 Ra7 Bf1 Ra8 Kd2 Kf7 c4 Kf6 g4 Ke5 g5 Kf4 b6 d5 g6 h5 c5 d3 Kc3+ d2 Kb4 h3 g7 a2 f6 a1B c6 d4 c7 h2 f7 h4 Nf3 h3 Bb5 d3 Nc3 Rh7 Ne4 Nc6+ Kc5 Ra2 Neg5 Na7 Kb4 Nf6 g8B Qd5 Qf1 Bg4 c8B Rg7 Bc4 Ne4 Qg1 Bf6 Nh7 Bg5 Ne5 Rb2+ Ka4 Bf5 Nf6 Bh7 Bd7 Qe6 Be8 Qd5 Qg2 Qe6 Rf1 h1N Ka5 h2 Re1 Nhg3 Qg1 h1R Qh2 Qc8 Be6 Qc2 Bh3 Qb1 Re3 d1B Re1+ d2 Bf1 Rg6 Bh3 Bfh6 f8Q Ba4 Bc4 Qc2 Nf7 Rg7 Bcf1 Kf3 Qh8 d1B Qg8 Bh4 Bg5 Nd2 Qh8 Qb1 Qf8 Qa2 Qg8 Bg6 Qh7 Bb1 Qc2 Be2 Qc5 Bh7 Bf4 B4g5 Bd6 Nge4 Bg3 Bed1 Bh4 Ng3 Qd6 Bdb3 Qe5 Be6 Qc5 Bg4 Bfg2+
1Q1bb1Qb/1NRBk2q/1n1Pq1Qb/1K2Q1r1/1PnB4/7r/7p/3q1nN1 b - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 b4 exf4 Ra3 b5 axb5 cxd4 c4 Qa5 Rb3 Qd8 Rc3 dxc3 e4 f5 Ke2 h5 Kd3 a5 g4 d5 c5 a4 b6 c2 e5 a3 e6 d4 Kc4 d3 b7 a2 g5 a1B g6 h3 e7 h4 g7 f3 Na3 f4 Nb1 d2 Bb2 c1B Be2 f2 Qe1 f1Q Bc3 d1Q Na3 h2 Bf6 h3 Bc3 f3 Nb5 f2 Bd3 Nf6 g8Q Ng4 Qe2 Qd6 Bd4 Nd7 b8Q Bg5 Qc7 Qfe1 Nf3 f1N Na7 Nge5+ Kb5 Nc4 Nh4 Ndb6 Bf5 Bd7+ Nc6 Ra7 Qd3 Qee6 Nf3 Ra8 Rg1 h1Q Qc3 Rc8 Qb8 h2 Qe1 Rh3 Qe5 Qg2 Bg4 Qgc2 Rg2 Qcd3 Ng1 Qh7 Ra2 Bh4 Ra7 Bf6 Rc7 Bb2 Qgg5 Bh6 Qgf5 Kf7 Qfe4 Rg8 e8Q+ Kg7 Qec8 Kf7 Qb1 Bd8 Qg6+ Kf8 Bf5 Be8 Bg4 Qed5 Bd7 Q5e6 Na5 Ke7 Nb7 Bc3 Qgf5 Rg5 Qg6 Bg7 Qa8 Bh8 Qcb8 Bd2 Qa2 Rf5 Qb3 Bh6 Qbg3 Rfh5 Qg8 Rf5 Q3g6 Rg5 cxd6+
rRr1Qn1k/2Pq2N1/n3RKb1/nBB5/4q3/P3q3/3bpB2/2BQq1n1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 f4 e5 g4 h6 Nc3 exf4 Nd5 h5 Ne3 dxe3 gxh5 Qf6 Qd6 Qe7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 b5 Ke5 g5 c4 Kg7 h4 g4 a3 g3 c5 d4 c6 g2 c7 d3 Qc2 d2 Nf3 d1Q Qc3 g1N Bd3 b3 Qe1 b2 Qe2 b1N Be4 b4 Qc2 e2 Ng5 f3 Bc6 f2 Bb5 Nd2 Rb1 Qe1 Qd1 f1Q Ne6+ Kh7 f6 b3 h6 b2 f7 Qff2 h5 Nf6 Ng7 Bf5 Rh4 Bb4 f8B Qe3+ Re4 Bg6 Bc5 Nc4+ Ke6 Na5 Ke5 Kg8 h7+ Kf7 h6 Qd7 Ne8 Rf8 h8B Na6 h7 Bd2 Bg7 Rc8 h8Q Nh7 Bf6 Ra8 Ng7 Rfc8 Bh4 Nf8 Qh5 Kg8 Bf2 Nb4 Kf6 Na6 Qe5 Kh7 Qe8 Kh8 Ra1 b1Q Re6 Qbe4 Rb1 Bf5 Bc4 Bh7 Rb8 Bg6 Bb5
6r1/3nBQ2/2r1PqBB/2p1Qb1n/nq6/1n3B1R/2pN3P/1kn2bKR b - - 0 1 legal: proof: b4 a5 bxa5 e5 f4 exf4 g4 b5 a4 d5 c4 dxc4 a6 h5 a7 hxg4 a5 Bc5 Nc3 Bb6 axb6 b4 b7 Be6 Na4 Bf5 Nb6 Be6 Nc8 Bxc8 Kf2 Ke7 d4 Ke6 e4 f5 e5 Kd5 Qd2 Ke4 d5 c5 d6 g5 d7 c3 Ra2 f3 Bb5 b3 Ra1 b2 Ba4 b1N Ra3 f4 Qb2 Kd3 Bb3 g3+ Kf1 f2 Ba4 g4 Ra1 Nf6 Bc6 Rg8 Ra6 Nh5 Qa1 Kc2 Kg2 f1N Bd2 Qf6 d8Q Nd7 Nh3 f3+ Kg1 g2 Bc1 Nfd2 b8B Nb3 Kf2 g1N Bd6 Ne2 Bh6 Nec1 Be7 g3+ Kg1 g2 Ng5 Rb8 a8B Rb6 Bcb7 Rd6 Qe8 Rc6 Qa4 Kb2 Qf4 c2 Ne4 Nc3 Qf7 Kb1 Ra3 Na4 Qf5 Nb8 Qf4 Bf5 e6 Nd7 Ba6 Qc3 Qe5 Qb4 Bd3 Ne2+ Kf2+ Nec1 Ke3 f2 Bb7 f1B Kf2 Nd4 Rc3 Ndb3 Nd2+ Ka1 Be4 Ka2 Rh3 g1Q+ Ke1 Qg6 Kf2 Qf6 Bd3 Rb6 Bf3 Rc6 Bde4 Bg4 Bg6 Bf5 Qe2 Ka1 Kg1 Kb2 Qe5+ Ka2 Nc4 Kb1 Nd2+
R1R2qQ1/r1rPr3/1N3QKb/5PNp/7N/k1nb1N2/2r2pq1/4rn1B b - - 0 1 legal: proof: c4 a5 b4 g5 h4 gxh4 a4 b5 axb5 d5 cxd5 Bh6 Qc2 Bg7 Qd1 Bf8 e4 axb4 Qf3 f5 Qg4 fxe4 Qd1 e3 f3 Bh6 Bb2 Bg7 Ke2 Bf8 Be5 Kd7 Bg3 Ke8 Bf2 exf2 Ke3 Kd7 Kf4 Kd6 Kg5 Kc5 g4 e5+ Kh5 h3 d3 e4 f4 b3 g5 Kb4 f5 c5 d6 h2 d7 e3 g6 b2 g7 e2 d4 c4 b6 c3 b7 c2 d5 c1R d6 Ne7 g8Q Nd5 Qg5 Nc6 Qf6 Na7 Nd2 b1R Bg2 Rb2 Qc2 h6 Kg6 h5 Ra6 Qe7 d8N Bh6 b8N Qf8 d7 Rh7 Nc4 Re7 Nb6 Nb5 Nf7 Ne3 Ng5 Ra2 Ra7 Ba6 Qc4+ Ka3 Qg8 Rc8 Nc6 Rb2 N1f3 Rd2 Rg1 h1Q Rc1 e1R Nfe5 Nf1 Nd4 Rc5 Rc4 Rc2 Bb7 Qh2 Bh1 Rc6 Rc5 Qg2 Rc4 Nc3 Rc5 Rb8 Ra8 Rb7 Rc4 Ra7 Rc5 Rd6 Rcc8 Bc4 Nef3 Rde6 Nh4 Bd3 Rab8 Rc6 Ra8 Rc7 Ndf3
K6Q/1B5r/Q7/R2P1p2/k4Nrb/1nb1NP1r/1rprQn1q/2B1Qr2 b - - 0 1 legal: proof: e4 a5 g4 d5 b4 dxe4 c3 axb4 g5 bxc3 g6 Qd7 Bh3 Qd5 Bf1 Qd8 a4 h5 Ra2 f6 Rb2 Bh3 Rb5 Kd7 Rg5 Be6 Rg4 Bf7 gxf7 hxg4 Ke2 Kc6 Ke3 g5 h4 b5 d4 e5 h5 f5 a5 g3 a6 c2 a7 g2 h6 b4 h7 g4 f3 g3 Qd2 b3 Qe2 b2 Qd2 Na6 Qd3 Bg7 f8Q Nh6 Nc3 b1R Nge2 g1Q+ Kd2 g2 Na4 e3+ Kc3 e4 Kc4 Nc5 Nb2 Ng4 Nf4 e2 Nd1 e1B Ne3 Nb3 Qg8 Rb2 Qf8 Bh4 Be2 Nf2 Rh3 Qh2 Kb4 g1R Nd1 e3 Qf7 Rg4 d5+ Kb6 Kc4 Ka5 Qe8 c5 Rg3 Bd4 Rg2 Bc3 Qd2 Rb8 Qe1 Rb7 a8Q+ Ra7 Bf1 e2 Ne3 Qb6 Qe6 Ka4 Qb7 Qa5 Qba6 Rc8 h8Q Rh7 Qe4 Rcg8 Qd3 Rg3 Qe4 Rh3 Rg6 Rgg7 Rb6 Rg8 Rb5 Rg4 Qd2 e1R Qe2 Rd1 Qe1 Rb7 Qd3 Re7 Qde2 Rd2 Qaf6 Rhg3 Rb4+ Ka3 Q2d1 Nh1 Qf2 Be5 Bd3 Ra7 Qde2 Rh7 Rb7 Rh3 Qd6 Qa8 Kb5 Qa5+ Kc6 Ka4 Ba6 c4 Rb5 c3 Qef1 Rd4 Q2e2 Nf2 Bd2 c1R Qg6 Be7 Kb7 c2 Ka8 Re1 Bc1 Bh4 Qb6 Rd2 Qa7 Nd1 Bb7 Nf2 Qa6 Bc3 Qg1 Rf1 Qg3 Nd3 Qge1 Nf2 Rxa5+
R1r3k1/nKbq1PrR/2Pb3b/N7/2r3b1/1Q2npQQ/2pQB2r/6N1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 hxg4 c4 e5 axb5 exf4 Bb2 d6 Bd4 cxb4 c5 Bf5 c6 Bc8 Bc5 dxc5 Kf2 f5 e4 Kf7 h4 a5 d4 g5 d5 f3 Ke3 c4 Kd4 f4 b6 f2 e5 b3 d6 b2 Kc5 g3 b7 c3 h5 a4 h6 g4 h7 c2 Qc1 a3 Bg2 f1Q Bh3 g2 Qe3 g3 Bf5 a2 Rh5 Ne7 d7 Na6+ Kd6 Nc7 b8Q Nb5+ Kc5 Bh6 Qd2 Nd5 Qe3 Na7 Qe1 Ne3 Ne2 g1B Qb6 g2 Bd3 Bh2 Qg3 g1R Na3 b1R Nc4 Rb4 Na5 Rc4+ Kd6 Qe8 d8Q Bg4 Kc7 Rc8+ Kb7 f3 Qd6 Qd1 e6+ Kg7 Qd7+ Qf7 Qb3 Rg2 Ng1 Kf8 Rb1 a1B Be2 Be5 Ra1 Bc7 Qd2 Rg8 h8Q Rf2 Qdc3 Qdd7 Qd2 Rg2 Qh7 Rg7 Qf5 Kg8 Rh3 Bg5 Rh7 Bh6 Qh5 Rf2 Qhh3 Rg2 Qge1 Bhd6 Qeg3 Rf2 Ra3 Nb5 Ra1 Re4 Nc4 Rh2 Ra8 Na7 Na5 Rc4 exf7+
1bn4N/4N1n1/4QB1K/1q1Ppq2/n3kNP1/b1q1bpb1/4b1NB/1Q3R2 b - - 0 1 legal: proof: c4 d5 d4 dxc4 f4 b5 e4 a6 d5 Ra7 f5 Rb7 b4 Rb6 e5 Rd6 exd6 a5 Ba3 axb4 Bb2 Kd7 Bc1 Ke8 a4 h5 g3 g5 Bh3 e5 Bf1 h4 Bh3 Rh6 Bg2 Re6 fxe6 h3 Ra2 hxg2 Rf2 Na6 Rf1 Nb8 Rf4 gxf4 Kf2 f5 Kf3 c5 h4 b3 a5 b4 e7 Kf7 e8Q+ Kf6 a6 b2 h5 b3 a7 c3 a8N c4 d7 c2 h6 c3 h7 Qa5 h8N Na6 d8B+ Ne7 Rh7 Nc5 Qd7 Ba6 Qd4 Ne6 Rh5 Ng7 Qe3 Be2+ Kf2 f3 Qe4 f4 Bc7 Nc8 Qe8 Bd6 Bd2 c1B Nb6 c2 Nc3 b1Q Nd1 b2 Ne3 Qc3 Rh1 Ba3 Nh3 g1B+ Ke1 Bd6 Ng2 Bh2 Qb4 Kf5 Bd8 Bc7 Kf2 Bb8 Qbb5 Ke4 g4 Kd4 Be1 Ke4 Bf6 Bd2 Qg8 c1B Rf1 Qbc2 Qge8 b1N Qe6 Ba3 Qb3 Q2d3 Qb2 Qb5 Qb3 Na7 Nc8 Bdc1 Ne7 Bg3+ Kg1 f2+ Kh1 f3 Nhf4 Be3 Bd2 Bh4 Kh2 Nc8 Kh3 Bg3 Be1 Qcc6 Qb2 Nc3 Qb1+ Qd3 Bd2 Na4 Be1 Qc3 Bd2 Bh2 Kh4 Bg3+ Kg5 Qdc2 Kh6 Q2d3 Rh1 f1Q Be1 Qdc2 Bf2 Q2d3 Bg1 Qdc2 Qa1 Qfb1 Bh2 Qb5 Qc1 Kd4 Re1 Qf5 Rf1 Ke4 Qb1+
K2Q4/p3QBQR/r1PQ4/2Bp3q/1bb3b1/kpn1Nb2/1Pb1Nn2/1r6 b - - 0 1 illegal: Other
K7/npr1R2b/q3P2p/2RqNn1P/3rpr1n/4N3/1NQrB3/k5NQ b - - 0 1 legal: proof: c4 d5 e4 g5 f4 a5 fxg5 e5 b4 axb4 d4 b3 c5 b2 c6 Bd6 Qf3 dxe4 Qh5 e3 Qd1 e4 Bd2 Nxc6 Bb4 Be5 dxe5 Nb8 Be7 Qd6 Bd8 Qxd8 Ke2 Ke7 g4 Ke6 a4 f5 h4 c5 g6 f4 g7 c4 a5 c3 a6 c2 a7 c1R g5 Nc6 g6 Qd7 Na3 b1Q Nc2 Nge7 g8N Nf5 g7 Qa2 Ne7 Rd8 Ng6 Qdd5 h5 Rb8 a8N h6 Nb6 Qa6+ Nc4 Na7 Ra5 Bd7 Rc5 f3+ Ke1 f2+ Ke2 Be8 g8Q+ Bf7 Qh7 Bg8 Qc7 Bh7 Rh4 Rd7 Rg4 Rbd8 Qe1 Rd1 Rg5 Rd3 Nb2 Rg7 Qd1 Rd6 Qc6 Rc7 Qa4 Rd4+ Qc4 Kf7 e6+ Kf6 Ne5 Rdd7 Rg7 Rd6 Bg2 f1R Re7 Rf4 Bf3 Rd8 Qf1 Rdd7 Qg2 Rd6 Qh1 Rd2+ Kf1 e2+ Kf2 e1N+ Qe2 Ng2 Ne3 Rd4 Qc4 Ngh4 Qc2 Rg4 Be2 Rdd7 Bd3 Rf4+ Ke2 Rd6 Kd2 Rdd7 Kc3 Rd6 Be2 Rd2 Kb4 Rd8 Nf7 Rd6 Ng5 Ke5 Nf7+ Kd4 Ne5 Qac4+ Ka5 Rdd7 Qb1 Kc3 Kb6 Kb3 Qc1 Ka2 Qc2 Ka1 Qh2 Qdd3 Qh3 Rd4 Qh1 Qd5 Re8 Rf7 Re7 Qa6+ Kc7 Rg7 Kb8 Rf7 Ka8 Rg7 Re8 Rc7 Re7
3BR1KR/p1Q1b3/P1NN1p2/4R2r/b1r3n1/PRknpp1Q/q6b/7q b - - 0 1 legal: proof: f4 d5 g4 g5 e4 gxf4 exd5 Nc6 g5 Nd4 Be2 Nxe2 c4 f3 a4 Qd6 c5 Qxc5 h3 Qa3 bxa3 Bxh3 Rh2 Bd7 Rh1 Bc8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g6 b5 d6 c5 g7 h4 a5 b4 a6 b3 d7 h3 d8R h2 d5 b2 d6 Nh6 g8R Nf4 d7 Ng4+ Kf5 e5 Qf1+ Nd3 Nd2+ Kc3 Rg5 b1Q Nc4 e4 Re8 Be7 Qh3 Qa2 Nd6 c4 Rb1 Rh5 Rb4 Bb7 d8Q Bc6 Qc7 Rc8 Rb1 Ba4 Ne2+ Kc2 Bd2 f6 Ba5 c3 Kg6 Kd2 Bb6 c2 Kg7 c1B Nd4 e3 Rb3 Bb2 Nc6 Be5 Kg8 Bf4 Ra1 h1Q Re5 Bh2 Rg1 Ngf2 Rg7 Ng4 Rh7 Kc2 Rh8 Kd2 Qb7 Kc2 Bd8 Kd2 Nd4 Rc4 Nc6 Kc2 Qc7 Kd2 Rb7 Kc3 Rb3+
1Q3B2/b1p3nb/2PB4/1R1PQp1b/pp4kQ/2rr1n2/3R3n/1b1KN2Q b - - 0 1 legal: proof: f4 g5 a4 g4 e4 d6 e5 dxe5 h3 exf4 hxg4 f3 g5 Qd5 Na3 Qd4 Nb1 Qd8 b4 Bh6 a5 Qd6 b5 Qb6 axb6 Bf8 Be2 Nh6 Bd3 Ng8 Be4 a6 Bc6+ bxc6 Nc3 c5 Na2 Nf6 Nb4 cxb4 Rh4 Ng8 Rh5 Bd7 Rh1 Bc8 d4 Kd7 g4 Ke6 c4 h5 c5 f2+ Kd2 f1B b7 h4 g6 h3 b6 a5 c6 a4 g5 Kf5 g7 e5 g6 e4 Qe2 h2 Qd1 e3+ Kc2 e2 Bf4 e1N+ Kc1 Na6 b8B Be2 b7 Nh6 g8Q Nc5 g7 Ng4 Nf3 Ne6 Bd6 Rh3 Ba7 f6 Rf1 h1B b8Q Nh2 Qh8 Kg4 g8Q+ Ng7 Qgh7 Bf5 Ra2 Bb1 Rd2 Bed3 Qh6 Bh7 Bac5 f5 d5 Ra5 Qe3 Be7 Qe5 Bh4 Bf8 Bf2 Bcd6 Ba7 Rff2 Bg2 Rc2 Rb5 Rfd2 Rc5 Rc3 Rc4 Rcc2 Rd4 Rc5 Rd3 Rb5 Bf1 Nh4+ Be2 Ng2 Nef3 Qh1 Ng1 Ne1 Rhe3 Qa1 Ngf3 Qf6 Rb3 Qb2 Red3 Qe5 Rbc3+ Rc2 Bg8 Qc8 Nh4 Nf3 Kh3 Ne1 Bg4 Qh5 Bh7 Qb8 Bf3 Qg5 Bh5 Qgf6 Nf3 Qfd8 Rb3 Rd2 Rbc3+ Kd1 Kg4 Qh4+
1b1b4/1r2n1q1/1r1qr2n/2q1Q2K/1nNkBBQP/2NB2B1/5P1n/nR5b b - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 c5 a4 cxd4 b5 f5 Ra3 fxe4 Rb3 b6 Rb4 axb4 a5 Ra6 axb6 Ra8 Ke2 Kf7 h4 Kf6 c4 Ke5 b7 d5 b6 g5 c5 g3 c6 b3 c7 g2 Qd2 b2 Nh3 g1B Qc3 e3 Kf3 g4+ Kg3 e2 Qa3 e1N Nc3 b1R Bb2 d3 Ng5 d4 Ne6 d2 Qa1 d1N Ng5 d3 Nd5+ Nc3 Rh3 d2 Nf4 d1Q Qa5+ Q1d5 Rh1 Na6 b8Q Nh6 b7 Nf3 Nh5 Bh2+ Kg2 g3 Qa3 Qc5 Nh3 Kd4 Nf6 e5 Qa2 e4 Qf7 e3 Qe8 e2 Qc6 Be7 Nd5 Re8 Qd7 Ra7 Nhf4 e1N+ Kh3 g2 Bc1 g1Q Ne3+ Nd5 Nc4 Qg7 Bd3 Nc2 Qf5 Bd7 c8B Rb6 Qc7 Bg5 b8B Bc6 Bb7 Nab4 Bd2 Re5 Rb1 Na1 Qd6 Re6 Bc1 Nf7 Kg4 Nh6+ Kh5 Qdf8 Bc7 Bd8 Qg4 Bg3 Bb8 Nh2 Qc7 Qfe7 Bd2 Qd7 Ba8 Ne7+ Nd5+ Bf4 Bb7 Nhf5 Nc3 Bh1 Bbe4 Rab7 Bc1 Bg3 Qcf4 Nh6+ Qfg5 Bf4 Bc7 Be3 Bg3 Bf4 Bd2 Bb8 Bdf4 Qdd6 Qe5+
1N6/n1PQKR2/2q1n1Pn/1nr3k1/1b3RN1/Q4nb1/1N1nr2n/3r1bBN b - - 0 1 legal: proof: a4 c5 d4 cxd4 h4 e5 f4 exf4 h5 b5 e3 d3 axb5 g6 c3 gxh5 Be2 h4 Bf3 Be7 Bd5 Bb4 Bb3 Bf8 Bc2 dxc2 Kd2 Ke7 Kd3 Kf6 Ke4 a5 Kd5 h5 g4 f3 b4 f2 b6 f1N c4 a4 c5 a3 b7 h3 b5 h2 b6 a2 c6 h4 c7 h3 e4 Rh5+ Kd4 d5 Ba3 c1N e5+ Kg5 e6 f5 Ke5 f4 e7 d4 e8N d3 Ng7 f3 Nc3 f2 Qe2 d2 Qd3 d1N Qe4 Nb3 Nf5 Qf6+ Kd5 Nc6 b8Q Nbd4 b7 Nh6 Qa7 Nf3 b8N N1d2 Nd7 f1N Qe2 Ba6 Ng3 Bb4 Qe7 Re8 Qf7 Re2 Na4 Qc3 Qa8 Na7 Nb2 Qc2 Rb1 a1B Nb8 Qc1 Qd7 Bb5 Na4 Be5 Ke6 Nc3 Nb2 Bd3 Ra1 Ncb5 Rb1 Qc2 Rc1 Qa4 Rc4 Qc2 Rf4 Qc6+ Qd6 Bc4+ Ke7 Bd3 Nf5 Bc4 Ne3 Bd3 Rf7 Bg3 Rf4 Nb3 Rf7 Nc5 Qd7 N1d2 Rf4 Ba5 Rf7 Ne6 Bc5 Bb4 Rf4 Re1 Rf7 Bf1 Ne2 Rd1 Rg1 h1N Rg2 h2 Rf2 Bh4 Rf4 Ng3 Rf7 h1R Rf4 Nge4 Ng3 Rh2 Nh1 Bg3 Rf7 Rg2 Rf4 Nh2 Rf7 Kg6 R2f4 Re2 g5 Ndf3 Ng4 Ned2 Nhf2 Rh3 Nh1 Kh5 g6 Kg5 Qb7 Rh5 Qa6 Kh4 Qa5 Rf5 Qa3 Kg5 Ke8 Rfe5 Bg1 Rc5 Ke7
Bn1n3b/1b2r3/Qk1K2P1/3R1Qrq/2r1r2r/5N1R/RP1q1Nnr/2R2b2 b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Bd2 gxh4 Bc3 b5 axb5 dxc3 Kf2 f5 Kf3 a5 e4 h5 g4 d5 c5 Kd7 b6 Kc6 b7 h3 g5 h4 g6 a4 e5 c2 e6 c1R e7 h2 e8R d4 Re1 h3 Re4 d3 Rb4 a3 Nc3 d2 Nd5 a2 Qc2 d1R Qg2 Rd4 Ne2 Rh4 Rb3 Nh6 Rb4 Re4 Qf2 Ra7 Nec3 Nf7 Na4 Bg7 Nf6 Bh8 Nb6 Rcc4 Bg2 Qd2 Rb5 Nd8 Rae1 a1R Rc1 R1a5 Ng4 Kc7 Nd7 Kc6 Rhd1 h1R Rb3 h2 Nde5+ Kc7 c6 Rac5 Rbc3 Kb6 Qe2 Rb5 c7 Rba5 Kf2 f3 Kg3 f2 Nf3 f1B Nf2 Rae5 Ra3 Raa5 Ra2 Re7 Nd4 f4+ Kf3 Nd7 b8R+ Bb7 c8Q Rg5 Rba8 Nb8 Qf5 Rg1 R8a5 h1Q Rd5 Rh2 Re1 Rgh5 Kg4 f3+ Kg3 R5h4 Rc3 Rc6 Rec1 Rc5 Qc4 Rc8 Qa4 Rc4 Qa6+ Kc7 Rc5+ Bc6 Qg5 R4e5 Rb5 Rhh7 Qa4 Be2 Qa3 R2h6 Rc5 Kb6 Nd1 f2 Re3 f1N+ Kf4 R5e6 Bd5 Re4+ Kf5 Rg3 Nf2 Qf3+ Qf4 Rh2 Qa4 R7h4 Rec3 Be8 Ba8 Bc6 Rd5 Qh5+ Qg5 Rg1 Rh3 Bb7 Nf3 Rg7 Qa3 Ne3+ Kf6 Bf1 Qf5 Rg5 Qa4 Ng2 Qa3 Reg4 Ke5 Re7+ Kd6 Rge4 Qa6+
Q2RK3/BBqR2qr/1q1P3n/1P2n1n1/4B1n1/br3B2/nq4b1/kN1Q3q b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 d5 a4 dxc4 b5 e5 Na3 exf4 Nc2 b6 Nb4 axb4 a5 Bg4 axb6 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 f5 e4 c3 g5 b3 d4+ Kb4 b7 c5 d5 c4 g6 h3 g7 f3 Ra2 c2 Ra6 Kc3 Rh6 f2 Nf3 h4 Bg2 f1Q Ba3 c1N Ng5 h2 Re6 b2 Qa4 b1Q Rb6 f4 Qa7 f3 Bh3 f2 Re6 Qg1 Bf5 f1N Ra6 h3 Bg6 Nd2 Bc5 Kb2 Nf3 c3 Rd6 c2 Rd7 Na2 Ke6 c1Q Kf7 Ka1 e5 Qbb2 e6 Qb6 e7 Ne4 e8B Rh7 Qa4 Nc6 b8Q Bb7 Qd1 Ra3 Qa8 Rb3 Nd2 Qg4 Bd4 Ba3 d6 Nh6+ Kf8 Qg1 g8B Ne5 Bd5 Ng5 Nb1 Qcc7 Bf3 Qg4 Rf1 h1N Bge4 h2 Rd8 Qg1 B8c6 Nf2 Ke8 h1Q Re1 Nfg4 Re3 Qa5 Ba7 Qg7 Rc3 Qac7 Rc4 Qgb6 Ra4 Bc8 Bb7 Be6 Rd7 Bc4 Rd8 Bf1 Rc4 Bg2 Rc6 Qc8 Rc7 Qb8 Rf7 Q8c7 Rfd7
N2q1R1n/1b1qrQ1q/1RqQ4/R3r1nb/1rBP3r/3R4/2q2P1N/3k1bK1 b - - 0 1 legal: proof: c4 f5 e4 fxe4 h4 g5 c5 gxh4 c6 dxc6 b3 Bg7 Bb2 Bc3 a3 Bb4 Bd4 b6 Bc5 bxc5 axb4 Qd5 Na3 Qd3 Nb1 Qd8 g4 Kf7 d4 Ke6 g5 Kf5 g6 Kf4 g7 e5 b5 h5 b4 a5 b6 h3 b7 c4 b5 c5 b6 c3 Bc4 c2 Kf1 c1Q Ra2 a4 Bf7 a3 Bg6 e3 Nf3 h4 Nh2 e2+ Kg1 e1R+ Nf1 h2+ Kg2 e4 Bh7 e3 Qd2 c4 Ng3 c5 Qb4 e2 Qa5 c3 Rg1 h1B+ Kh2 Kf3 Bg6 h3 Bf7 c2 Bc4 Nh6 g8Q Na6 b8R Bg4 b7 Nc7 Rc8 Ne6 b8R Bg2 Bb5 c4 Rc6 c3 Nh1 Nf7 Rcc8 Bf1 Bd7 Bh5 Qg7 Neg5 Rb7 Rb8 Ra7 Rb4 Rb2 a2 Qc5 a1Q Qge5 Qa4 Bf5 Qad7 Na3 Qb1 Qec7 c1Q Ng3 c2 Bd3 Rh7 Ra6 Nh8 Q5d6 Qd2 Rca8 c1Q Bc4 Qdc2 Ra5 Re7 Kh1 h2 Nb5 Qh7 Qa7 Qbc2 Nc7 Rd1 Rb8 e1R Na8 R1e5 Rb6 Rd3 Rb3 Rde3 Qb7+ Re4 Qa7 Rh4 Rd3 Re5 Ba2 Qcc6 Bc4 Qc2 Qb7 Bh3 Nf1 Ke2+ Rg2 R3e4 Qbc7 Re7 Rgg3 R4e5+ Rgf3 Ke1 Ne3 Bf1 Ng4 Be2 Kg2 h1B+ Kg1 Bf1 Rf8 Bhg2 Rc3 Kd1 Nh2 Qb5 Rb3 Bb7 Rbf3 Qdc6 Qcd7 Qba4 Q7e6 Qcd7 Qf7 Qac6 Rd3+
Rr1bn1R1/3r4/q1Pq2Q1/2qRB1b1/4bR2/nQ3N1K/Pqr1b3/q3k1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 c5 d4 cxd4 e5 g6 Na3 f6 exf6 Kf7 Nb1 Ke6 f7 Kd6 Na3 Kd5 Nb1 Kc6 g4 Kc7 f5 Kb6 f6 Kc6 Bd3 Bg7 Nc3 Bf8 Bf5 gxf5 Ne4 h6 g5 h5 Nf2 Bh6 Ng4 hxg4 Qd2 Bg7 Qd1 Bf8 Kf2 Kb5 Kg2 Kc4 h4 Kc3 h5 e5 h6 b5 h7 d5 g6 d3 g7 e4 Qf3 g3 Qg4 d2 Nh3 d1Q Re1 e3 Qh5 f4 Qf5 e2 Qg4 d4 Rg1 e1B Qe2 f3+ Kh1 b3 Qh2 b4 Bf4 b2 Qe2 b1Q Qb5 d3 Qd5 g2+ Kh2 b3 Qb5 b2 Be5+ Kd2 c4 f2 c5 f1Q c6 Bg4 Nf2 Qd6 Bg3 Nd7 Be5 Be7 f8R Rb8 f7 Bd8 Qa6 Nb6 Nh3 Nc4 Qb7 Na3 Qb5 Nf6 g8Q Bh4 Qc4 Ke1 Qb5 d2 Qg5 Be2 Qb3 Ne8 Qg6 Bhg5 Rg8 Qbc1 f8R b1B Rf4 Qb2 Rgf8 Rg8 h8B Be4 Rc1 Rg7 Rc5 Qda1 Rd5 d1R Bd4 Re7 Bhe5 Rc1 Rg8 Rc2 Be3 Bf6 Ng5 Rd7 Kh3 Bfe7 Rh1 Bf6 Rh2 g1Q+ Rg2 Bfe7 Bc5 Qgd4 Rh8 Qc4 Bg1 Qf2 Rg3 Qfc5 Rg8 Qa4 Rgd3 Qa6 Nf3+ Kf1 R3d4 Bh4 Ra4 Bhg5 Nd2+ Ke1 Ra5 Qac4 Ra8 Qa6 Nf3+
1r1rn2q/r1nN1r2/Q3b3/2Pn1RQ1/BP4r1/nK3Nkb/5R1N/3n1rN1 b - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 f5 cxd4 f6 exf6 g3 f5 Ra2 f4 Kd2 f3 Ra1 f2 Ra3 f5 Kd3 h6 Be3 f4 Kd2 f3 Bg5 Bd6 Ra1 Bf4+ gxf4 hxg5 b4 Kf7 e4 Kf6 h4 a5 c4 d5 Kc2 g4 f5 Ke5 h5 Kf4 h6 g5 f6 g3 e5 g4 h7 g2 c5 g3 f7 a3 f8N a2 e6 d3+ Kb3 d4 e7 a4+ Kb2 a3+ Kb3 d2 e8N d3 Nf6 Na6 Ng4 Be6+ Kc3 Nf6 Rh5 Ne8 Re5 Nac7 Ne3 Rb8 Qc1 d1N+ Kd2 Nc3 Rh5 N3d5 Kd1 d2 Kc2 d1N Bc4 f1B Nd2 f2 Rb1 a1R Ndf3 a2 Nd4 Qf6 Ngf3 g1R Nd7 g2 Bb5 Kg3 Kb3 Rg8 Qc4 Qh8 Rb2 Rg7 Qd3 Rf7 Rf5 Rh1 Qd2 g1R Ba4 Bh3 Ng4 f1R Qg5 Rh2 Rc2 Rd2 Rb2 Rgg2 Ng1 Rd3+ Kc4 Rdd2 Ndf3 Rd4+ Kb3 Rgd2 Ngh2+ Rg4 Qf4+ Kf2 Nde5 Qg8 h8Q N5c3+ Qc4 Kg3 Qh5 Qh8 Bb5 Rdd8 Nd7 N3d5 Qe2 Rb1 Ka3 a1N Qg5 Nc2+ Kb3 Ra1 Qd3 Raa8 Ba4 Ra7 Qa6 Na3 Rf2
q1QR1r2/b6b/n1RB1brq/4nK2/4BNr1/1bP5/r1Qb1bP1/Q2Q1k2 b - - 0 1 illegal: No possible last move, all moves rejected
NRrrQb2/1QN1b3/bq1n3b/5qbR/K2n1rPN/5bP1/k3r3/N2B4 b - - 0 1 legal: proof: b4 f5 d4 c5 e4 cxd4 a4 fxe4 h3 g5 b5 g4 hxg4 a6 Ra2 axb5 Ba3 b4 Ra1 bxa3 Kd2 Kf7 c4 Ke6 Kc2 b5 Kb3 h5 f4 d5 c5 h4 g3 e3 c6 d3 c7 d4 a5 Kd5 f5 e5 f6 b4 a6 e4 f7 a2 a7 e2 Na3 e1B Qc1 e3 Rb1 a1B Qb2 e2 Nf3 h3 Nh2 d2 Qc3 d1B+ Qc2 d3 Nf3 d2 Nd4 h2 Nf3 Ba6 c8N Bf6 Rb2 Nh6 Ng1 Nc6 Nf3 Nf5 Nd6 B6e7 Bg2 Ncd4+ Ka4 b3 Kb4 Qb6+ Nb5 Rd8 Ra2 b2 a8N b1Q+ Ka4 Rc8 Nb7 Nd6 Rf1 h1R Nc5 R8h2 Rf2 Rf1 Nb3 Bg5 Qh7 Kc4 Nh4 Qf5 Na7 Kc3 Ra3 Kb2 Nb5 Kb1 Rf3 Bgh6 Rc3 Rf4 Nbc7 Bf2 Rc4 e1B Rc5 Bf3 Na1 d1R Rb3+ Ka2 Rcb5 Be7 f8Q Be3 Qe8 Bb4 Bf1 Rd3 Be2 Rg2 Bd1 Re2 Re5 Bef8 Ne6 Nb7 Qd8 Qg6 Qhc7 Qc6+ Rb5 Nf5 Qh7 Rfd4 Qhd7 Bbe7+ Rb4 Rc4 Q7e8 Re4 Qb6 Rdd8 Nc5 Nbd6 Qa7 Nd4 Ne6 Qc7 Rb8 Qb6 Rb5 Qf6 Rg5 Qf5 Rh5 B3g5 Nec7 Rf4 Qb7
1Bk1r2r/4n1Pn/2n1B1r1/1q1B1rb1/4R2n/1r1BR2Q/rPK3b1/5QqN b - - 0 1 legal: proof: f4 c5 h4 e5 a4 exf4 d4 cxd4 h5 g5 h6 a5 Kf2 b5 axb5 a4 Ke1 a3 Nd2 a2 Ndf3 Nxh6 Rb1 Ng8 Nh4 gxh4 Nh3 a1Q Ng1 Qa2 Ra1 Qb1 Kd2 h5 c4 f5 g4 d5 e4 Kd7 g5 f3 c5 f4 b6 f2 e5 h3 g6 f3 g7 d3 b7 d4 Qa4+ Nc6 b8Q h4 Qb6 h2 Ne2 h3 Qaa7+ Bb7 e6+ Kc8 e7 Qd7 e8B Nf6 Qaa5 Be7 Bg6 Nh7 Qbb5 Re8 Qa2 Bg5+ Kd1 d2 Qab3 Ra2 Rg1 h1N Bd3 h2 Bf5 Ng3 Qf7 h1R Bg2 f1N Qf8 f2 Bfh3 Nh2 Bf5 Nf3 Qd3 Nh4 Re1 f1R Bd5 Ba8 Bg6 Ngf5 Qh3 Nfe7 Bd3 Rf5 Ng3 Qb7 Qf7 Qb5 Qf6 Rg1 Nh1 Rg3 Re4 Bb7 Ke2 d1R Bf4 Rdg1 Kd2 Qf1 Rae1 Rf3 Be2 Rb3 Bd3 Rg2+ Kd1 Qg1 Bb8 Rg3 Kc2 Rh8 Bf1 Ba8 R1e3 d3+ Kd1 d2 Kc2 d1R Bd3 Re1 Qf7 Na7 c6 Rg4 c7 Nac6 Rc4 Re5 Qff1 Rf5 Rg3 Re6 Re3 Rg6 Rce4 Rgf4 Qhg2 Rff8 Qgf3 Re8 Q1h3+ Rf5 Qff1 Kd7 c8B+ Kd8 Bce6 Bb7 Bf7 Kc8 Bg8 Nf6 Rc4 Nh7 Bdf7 Ba8 Rf4 Na5 Bfc4 Bf3 Rfe4 Nac6 Bcd5 Bg2 Bge6+
1Nn1bn1n/B4q1B/1Pbq3N/NR4Nk/K5Pq/1Q3n2/4nb1n/Q2q2r1 b - - 0 1 legal: proof: b4 a5 f4 b5 a4 bxa4 h4 g5 d4 gxf4 d5 e5 d6 e4 Qd3 cxd6 Qd4 d5 Qd1 d4 Ra3 Ra6 Rb3 Rg6 Rf3 Rg5 hxg5 exf3 Kd2 h5 c4 f5 Kc2 Kf7 e4 Kg6 b5 d5 b6 a3 Kb3 h4 e5 a4+ Kc2 d3+ Kc3 h3 c5 d2 Kb4 a2 e6 a1Q e7 d4 e8N h2 Nc3 f2 Ka5 d3 c6 f3 c7 a3 Qc2 d1N Be3 a2 Na4 d2 Qd3 Bb7 c8N Qd6 Qa3 f4 Ne7+ Kh5 g6 Nd7 g7 Nh6 g8Q Qg7 Qd3 a1Q Qa2 Nc3 Ne2 d1B Nc6 Ne4 Qb2 Qf7 Nb8 Bc6 Rg1 h1Q Qbd4 Qh4 Nc1 Bg7 Qe2 Nf8 Qdd3 Bd4 Qa3 Bc2 Na2 Qd1 N4c3 B2a4 Qe1 Bc5 Bc4 f1N Nc1 f2 Qb3 f3 Bd3 Nfg3 Bf4 f1N Rh1 f2 Ng7+ Kg6 Bc2 Ne2 Nf5 Nfd2 Bd3 f1N Rh2 Qhd8 Rh5 Nh2 Bb1 Ndf3 Bc2 N6g4 Nh6 Bf2 Rb5 Nge5 Bg3 Kh5 Qf1 Nf6 Ne4 Ne8 Ng5 Neg6 Qe1 Rh7 Qec3 Q8f6 Qa1 Nh8 Be4 Qff4 Bd3 Qh4 Bf4 Rg7 Bh7 Rg6 Be5 Rf6 Qaa2 Q6d5 Rc5 Rg6 Qbb1 Q1d3 Qba1 Bb7 Nd7 Nd6 Nb3 Nc8 Bb8 Rc6 Ba7 Qd6 Nb8 Bb5 Re5 Rc1 Q2b2 Bd7 Rb5 Be8 Qba2 Be4 Ka4 Rg1 Na5 Qd1+ Qb3 B4c6+ g4+
8/qB1rqr1Q/bR5R/r1q4P/P2nrR2/b1kNpRnQ/K1B5/5br1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Bd7 Bb2 Bc8 Na3 Kd7 Be5 Ke8 Bf4 h6 Nc2 gxf4 g5 h5 Ne3 Nc6 Ng4 hxg4 Qc1 Nb8 Qc2 Kf7 Qd1 Ke8 h4 Kf7 d4 c5 Kd2 e5 Kc1 b5 Kb2 g3 a4 g2 h5 e3 f6 b3 d6 Ke6 g6 Kd5 d7 e4 f7 b4 g7 e2 Nh3 Kc4 d5 g1R d6 f3 Qd2 f2 Bg2 e1R Nf4 f1B Rb1 Nf6 g8B Ba6 Ne2 Qe7 d8R Rh7 d7 Nc6 Bh3 Nd4 Ka1 b2+ Ka2 b3+ Ka3 e3 Nc1 Rd1 Re8 Ne4 d8R Ng3 Qg2 Kc3 Bc8 c4+ Rd6 Rd2 Rh4 Rf2 Ra1 b1R Nd3 b2 Qh3 Rd1 Re4 b1Q Bb7 Rf4 Rb8 Qb6 Ka2 Qa7 Rh6 Rg4 Rf4 Rhg7 Rff6 Re4 Rb1 Rd2+ Rb2 Rf2 Bh7 Rf5 Rbb6 Ra5 Re8 Rd8 Rf3 Rd7 Rhg6 Qe5 Rge6 Ba3 f8Q Rgf7 Rh6 Qe7 Qg7 Kc2 Rg8 c3 Bf5 Rf4 Be6 Re4 Qh7 Kd2 Rgg6 c2 Bb3 c1Q Rg4 Qcc5 Bc2 Kc3 Rgf4
K1nbn3/B2r1kqR/BQ4q1/2b3P1/1Np2B2/n2R4/Q1q3Pn/3Br1nr b - - 0 1 legal: proof: c4 e5 b4 a5 f4 axb4 c5 g5 h3 g4 Nc3 exf4 Ne4 d6 Ng5 dxc5 N5f3 gxf3 Rh2 c4 Rh1 Bg4 hxg4 Bd6 Rb1 Be7 Ra1 Bf8 Kf2 c5 a4 f5 d4 h5 e4 b5 d5 b3 a5 b2 e5 b1N d6 b4 d7+ Kf7 a6 b3 a7 b2 Ra3 c3 Rh2 c2 Ra4 c4 Ra3 h4 Qd6 h3 Qh6 Bc5+ Be3 c1B Qg5 Qb6 d8B Nd7 Rd3 Ne7 Rd6 Nc8 Rd1 Qg6 Rd2 Nf6 Bd4 Rh7 Be2 Ne8 Bd1 Na3 Bc7 b1Q Rd3 Qc2+ Ne2 Rg7 Rh1 h2 Qd8 Rb8 a8Q Rb1 Qd6 Bd2 g5 Ba5 Bb8 Bd8 Qb6 Rc1 Ba7 Rh7 Be3 Rb1 Kf1 f2 Nd4 Rg7 Nc6 Ra1 Rg1 h1R Nb4 Rgh7 Bd2 Rg7 Ke2 f1N Kf3 Ng3 Re1 Rgh7 Re4 Ne2 Red4 Qg7 Rd6 Re1 Re6 Rhh1 Rh6 Rb1 Rh7 Rb3 Re3 Rd3 Bc1 Rd7 e6+ Kf8 e7+ Kf7 Kf2 f3 Bd2 Rd4 Rd3 Ng1 Kg3 Rd7 Kf4 f2 Be3 Nf6 Ke5 f1N e8B+ Kf8 Bg6 f4 Be4 f3 Bb7 f2 Ba6 Nh2 Ke6 f1Q Ke5 Ne2 Bf4 Qf3 Ke6 Qh5 Ke5 Ne8+ Ke4 Re7+ Kd5 Ng1 Kc6 Qhf7 Na2 Rd7 Nb4 Nc7 Kb7 Qfg6 Qb8 Ne8+ Ka8 Kf7 Qe5 Bce7 Qb2 Bc5 Qa2
1B4rQ/4b1r1/5PnQ/1BBpN2R/BbN1P1qk/qq4q1/1b3n2/1Kn3q1 b - - 0 1 illegal: No possible last move, all moves rejected
Qrk5/QRqBQ2b/R1qQP3/2r2q2/nb1r4/pr5P/Nr1bN3/3Kn3 b - - 0 1 legal: proof: d4 c5 b4 a5 e4 b6 e5 Ra7 e6 b5 a4 bxa4 b5 Rb7 b6 Ra7 f4 h5 g4 hxg4 f5 Rc7 f6 exf6 Ba3 Rc6 Bb4 cxb4 Ne2 Rc5 Ng1 Re5+ dxe5 Rh3 Qc1 Rh7 Qd1 Rh8 c4 d5 e7 Kd7 h3 g5 b7 g3 c5 a3 Rh2 a2 Qd2 b3 Bb5+ Nc6 b8Q f5 Qa7+ Qc7 Qc1 g4 Rc2 g2 Nf3 g1B Rb2 a4 Ba6 g3 Ng5 d4 Qc3 d3 Qa5 d2+ Ke2 d1R Nf3 a3 Bb5 f4 Qb7 f5 Ng5 g2 Ne4 Rd4 Rc2 f3+ Ke1 b2 Qba7 f2+ Ke2 f1R Rc3 f4 Qa8 Rc1 Rb3 Be3 Qe1 g1R Nd6 Rg2+ Qf2 Nf6 Bc4 Nd5 Rb7 Ncb4 Qa6 Nb6 Nf5 Nd3 Ng3 Bd2 Bf7 Ne1 Nc3 Na4 Rb1 a1Q Na2 Rc3 Rc1 b1R Kd1 f3 Ne2 Rbb3 Qa7 Qb2 Qg3 f2 Bg6 f1Q c6+ Ke6 Rb1 Qf5 Be8 Rc5 Rb6 Qc3 Ra6 Qb6 c7 Qc6 Qh2 Bd7 c8Q Qa5 Bh5 Qc7 Qca8 Be8 Rb2 Bg6 e8Q+ Be7 Qf7+ Kd7 Qf6 Rhb8 e6+ Kc8 Qd6 Bh7 Be8 Bf8 Rb1 Rb2 Qfe7 Rg3 Rc1 Rf3 Rc4 Re3 Rb4 Reb3 Rb7 Bfh6 Qg3 Bb4+ Qd3 Bhd2 Qg3 Re3 Qgd6 Reb3 Bd7+
b2n1r2/RBn2n1R/PQ4Bq/b2Q4/P3Rb2/1p3kr1/5N1r/q1R1nKn1 b - - 0 1 legal: proof: g4 g5 b4 h5 f4 gxf4 d4 c5 g5 a5 bxa5 cxd4 Nd2 e5 Ne4 f3 Bf4 exf4 Kd2 f2 Nf6+ Ke7 Ng4 hxg4 Qc1 Ke8 Qe1 Nh6 Qd1 Ng8 e4 Ke7 Ke2 Kd6 h4 Ke5 c4 b5 a4 d5 c5 f5 g6 g3 h5 d3+ Kd2 g2 g7 b4 h6 f3 a6 Kf4 e5 d4 c6 b3 h7 Qg5 c7 Qh6 e6 Bb4+ Kc1 d2+ Kb2 d3 e7 Ba5 e8Q Bb7 c8R Nc6 Qf8 Nd8 Be2 f1R Rb8 f2 Qe1 d1N+ Kc1 d2+ Kb1 Nc3+ Kb2 d1Q Qe8 Nb5 Bc4 Nc7 Nf3 g1B Rc1 Bh2 Bf7 Rg1 Ne5 f1N Qb5 Rg3 Qb6 Nd2 Nd3+ Kf3 Nf2 f4 Bg6 Be4 Rb7 Rb8 Ra7 Ba8 Qb4 Rc8 Kc3 Rb8 Rc2 Qa1+ Kd3 Qh3 Qd1+ Kg2+ Ke2 f3+ Ke1 Nb7 Qb6 Rf8 Bd3 Rg5 Bf5 Bf4 Qh6 Rg3 Nd3 Nd8 Qb6 Nh6 Rc4 Nhf7 Bg6 f2+ Ke2 f1N Re4 Nf3 Nf2 Ne3 Qd5 Qh4 Rf1 Nc2 Rc1 Kh2 Kf1 Nce1 Qd1 Ng1 g8B Ne5 Bd5 Nef7 Bb7 Qg5 Nh1 Kh3 Qdd4 Kg4 Nf2+ Kf3 Qe5 Rh3 Qd5 Rh2 Bf5 Rhg8 h8R Qh6 Rh7 Rg3 Bg6
q3R1b1/pkq3P1/1PN5/n1R2KNb/2n4b/qn1Qb1Q1/4r1N1/3BrNb1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Kd2 d5 h4 Kd7 c4 Kc7 b4 e5 b6+ Kb7 b5 d3 g7 d4 h5 e3+ Kc1 g4 c5 g3 h6 g2 h7 f3 Rh6 f2 Rc6 e4 Nc3 e2 Kd2 e1B+ Kc1 e3 Nf3 g1B Qc2 d2+ Kd1 Nd7 Ke2 d1N Kd3 e2 Ke4 d3 Nh4 d2 Ra4 Qc7 Ra3 Nb2 Re6 d1B Kf5 Nc4 Re8 Rb8 Ne4 Ne7+ Ke6 Nc6 Ng3 Rg8 h8N N6a5 Qd3 Bd2 Ra4 e1Q+ Be2 f1Q Nf7 Qg2 Nf1 Bde3 Ng5 Qc3 Kf5 Qa3 Bg4 Bb3 Bd1 Be7 Rb4 Qgc6 Ng2 Ba2 Rb3 Rh8 Rc3 Rh2 Nf3 Bh4 Ng5 Nd2 Rc1 Bg8 Rc2 Ndb3 Rc1 Qd8 Rc3 Qcc7 c6+ Ka8 Rc5 Ne5+ Ke4 Ba6 Kf5 Rc8 b7+ Kb8 Ne1 Re2 Ng2 Nec4 Rf8 Qce7 Re8 Kc7 b8N Kb6 c7 Kb7 b6 Bb5 Rf8 Be8 Nc6 Bh5 Rf6 Qde8 Re6 Rd8 Ree5 Rd4 Re4 Qa8 Ree5 Re4 Re6 Ka6 c8Q+ Qeb7 Qf8 Qc7 Qfd6 Kb7 Qg3 Re1 Ree5 Rd4 Qc3 Rd2 Qd3 Rde2 Re8
K2br1N1/1rrr1q1Q/1rbBrP2/1rB1k1N1/2Q2p2/bBn2R2/2B1P3/3n4 b - - 0 1 legal: proof: g4 e5 d4 c5 h4 cxd4 f4 g5 b4 b5 a4 gxh4 axb5 f5 Ra3 fxg4 f5 Bd6 Rf3 Bf8 Rf4 exf4 Kd2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 a5 c4 a4 b6 d3 c5 a3 b5 g3 c6 a2 b7 a1R c7 h3 b6 h4 Qd2 g2 Ba3 h2 Qb4 h3 Nf3 g1B Ng5 d2 Qb3 d1R+ Qd3 Ra7 Bc5 Nc6 b8B Nce7+ Kd6 R1a6 Ba3 Qe8 Bb4 Rc1 Ne6 Qf7 Qa3 Bb7 c8B Nh6 Bg2 Ng4 Ng5 Ne3 Nf3 Bf2 Bd2 Bh4 Rd1 h1R Qb3 h2 Nc3 Bg5 Kc7 d5 Qa4 d4 Be6 d3 Rf1 Rh5 Be1 d2 Bf2 d1R Qc2 Rg1 Bb3 h1R Qb1 R1h3 Bh1 Ba8+ b7 N7d5+ Kc8 Ba3 Bc7 Rg2 b8Q R3h4 Qb5 Rb6 Q1d3 Bb7+ Kb8 Rh6 Qc5 R4h5 Qb1 Rd3 Qb5 Nd1 Ne4+ Kg7 Qc2 Bd8 Nf6 Rh8 Be3 Re8 Ng8 Rgg6 Qbc6 Rge6 f6+ Kg6 Qb5 Rhe5 Ng5 Kf5 Qb1 Rc5 Qc4 N5c3 Bf3 Rcb5 Bf2 R6e7 Bc5 R5e6 Be5 Rc7 Be4+ Kg4 Rf3 Rdd6 Bd3 Rdd7 Ne4 Kf5 Bed6 Nb2 Qh1 Nbd1 Qh2 Qf8 Bdc2 Qf7 Be7 Ke5 Qh7 Rbd6 Ng5 Bd5+ Bb6 Rab7+ Ka8 Rdc6 Be3 Rcb6 B3c5 Bc6 Bed6+
Kn3Nq1/nN2n2q/2P2nbq/3Q4/3bk1rb/1B5P/1N1p1r1B/2Q1rNR1 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kd3 Kf5 c4 g5 c5 a5 b6 a4 h3 a3 c6 g4 b5 a2 b7 a1Q e3 Rh4 b6 Ne7 Qc2 Qd6 Na3 Qh6 Nb1 Ra2 Qb3 Rf2 Qc4 Qa7 Ne2 g1Q Qa2 g2 Rh2 g3 Na3 Rg4 e4+ Ke5 Bb2 f5 Rh1 f4 Qc4 f3 Qc1 Bf5 Nc4+ Ke6 Ba3 Bg6 Nb2 Ke5 Bc5 Bg7 Bb4 Bf6 Bd6+ Ke6 Be5 Bh4 Bc7 Be8 e5 Kf5 e6 Bg6 Kc2 d3+ Kb3 d4 Kc4 d2 Kc5 d1N Bd6 Nd5 e7 d3 e8N d2 Bf4 Nf6 Nd6+ Ke6 Kb5 Nc3+ Kc5 Nb5 Be5 Qh2 Rg1 Qa8 Bf4 Na7 Be5 Nc8 Kb5 Kd5 Bf4 Na7+ Ka5 Nbd7 Ka6 Qg8 b8N Qh1 Nb7 Ke4 Nd8 Qgh7 Kb7 Qg8 Ka8 Qh2 Rh1 g1B b7 g2 Bd6 Qhh7 Be5 Qf4 Ng3+ Kd5 Bd6 Qfh6 Bc4+ Kd4 Nf1 Ke4 Na6 Nb8 Nc7 Re2 Bb3 Bd4 Bf4 g1R Bh2 f2 Nce6 R1g2 Nf8 Re1 Ne3 f1N Rg1 Ng3 Nf1 Nbd7 b8Q Rf2 Nb7 Nf5 Qe8+ Ne7 Qd8 Nb8 Qd5+
nNR5/6b1/2rnpQ2/qnb5/2Q2P2/1P4BK/nbrN1rQ1/k1Rn1nQ1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 a5 hxg4 Bg2 f5 a6 bxa6 Be4 a5 f3 a4 f4 Bb7 Bd3 Bf3 Be4 fxe4 exf3 Qc8 Ke2 Qc7 Ke1 Qd8 Kf1 Kf7 Kg2 Ke6 c4 g5 h4 d5 c5 a5 c6 d3 c7 e3 c8Q+ Nd7 b3 e2 f5+ Ke5 f6 Kd4 h5 e1R h6 a3 h7 g3 f7 d2 f4 a2 Qa6 e6 Qde2 d1N Qab5 g4 Qc2 a4 Nc3 a3 Rh5 Ne7 Nh3 Rc8 Rh6 Nf5 Ne4 Nd6 Nef2 Qa5 Qf1 Bg7 f8Q Nc3 Rb1 a1B Qh1 a2 Nd1 Ncb5 Qg8 Bb2 Qf7 a1N Nhf2 Rf1 Rf6 Nb6 Qg8 Rc6 Qh2 Na8 Qe2 Nc2 Qd8 Nb4 Qe7 Na2 Qb7 Rhc8 h8Q Rc2 Ne4 R8c6 Bd2 Rf2+ Kg1 g2 Be1 Rc1 Qg3 R1c2 Kh2 g1N+ Qg2 Nf3+ Kg3 Qa4 Ndc3 Nd2 Nc5 Qa5 Qg1 Nf1+ Kh4 g3 Rc1 g2 Nb1 Qb6 Na6 Qa5 Qg4 Kd3 Qbc8 d4 Rg6 Qa4 Nb8 Qa5 Nd2 Kc3 Kh3 d3 Nb1+ Kd4 Rf6 d2 Rf8 d1N Qa6 Kd3 Rc8 Kd4 Qh1 g1B Qgg2 Rf3+ Bg3 Rff2 Na3 Kc3 Qh6 Rf3 Qf6+ Bd4 Qhg1 Rf2 Qg5 Bc5 Qe7 Ba1 Nb1+ Kb2 Qf6+ Nac3 Qe4 Ka2 Qeg2 Bb2 Qd8 Ka1 Qf6 Qa3 Qa4 Na2 Qc4 Qa5 Nd2+
n3Rqq1/1Q3rB1/bq1Rr1k1/2n5/3P4/q1bBp2N/BB4P1/KQ2rq1q b - - 0 1 illegal: No possible last move, all moves rejected
2n3r1/bkn1NP1R/1rq5/1N1prQ1b/3NNn1K/P2Bn3/1b1Qn3/1B2r3 b - - 0 1 legal: proof: b4 c5 d4 cxd4 e4 g5 f4 f5 exf5 a5 f6 axb4 a3 Qc7 f5 Qd8 g4 h6 Bf4 Bg7 Ra2 Bf8 Rb2 Na6 Rb3 Nb8 Rg3 gxf4 g5 Ra7 g6 Ra8 Rg5 hxg5 Kf2 d5 c4 Kd7 h4 Kc6 c5 e5 f7 b5 g7 e4 h5 f3 Kg3 e3 f6 g4 h6 d3 h7 d2 Bd3 e2 Rh3 e1N Qc2 d1R Qf2 b3 Qf1 b2 Bg6 f2 Qe2 f1N+ Kh4 g3 Be4 g2 Bc2 b4 Rd3 b3 Rc3 Kb7 Qc4 Ne7 g8B Qc7 Re3 Na6 Qc3 Qc6 Rg3 Nc7 Rg7 Ne3 Qd2 Nd3 Nc3 b1R Nb5 b2 Nf3 g1B Nfd4 Nf4 Bf5 Rb8 Bd3 Rbc1 Bb1 Bg4 Bd3 Nc8 Bb1 Be7 f8Q Rf1 Be6 Rc3 Bef5 Re1 Bfd3 Rg8 h8N Bh5 Ng6 Bd6 f7 Be5 Rh7 Bg7 Ne7 Rcc1 Bbc2 b1N Qd8 Rcd1 Qd7 Nc3 Qf5 Nce2 Bb1 Rc1 Ne6 Bb2 Ned4 Ka8 Rg7 Rb6 Rh7 Qg6 c6 Rc4 Nc2 Re4 Ncd4 Qh6 Na7 Re5 Nab5 Ne8 c7 Qc6 Qg5 Kb7 Qf5 Ncd6 c8N Nc7 Nca7 Nc8 Nc3 Qa4 Ne4 Qc6 Nab5 Ra6 Qe6 Nc2 Ndf5 Ba7 Qd7 Rb6 Nfd4 Ne3 Qf5
1rrb2R1/2PB2K1/N1RB4/3n1bn1/3k1bBP/1n2p2n/nr1B3q/1Q3r1Q b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 fxe4 Nd2 gxf4 Ndf3 h6 g5 h5 Ne5 Ba6 Ng4 hxg4 Rb1 Bb7 Ra1 Bc8 Ke2 Kf7 c4 Ke6 h4 Ke5 b4 a5 b6 d5 b7 g3 b5 g2 g6 d3+ Kd2 f3 Ke3 f2 c5 d2 b6 d4+ Ke2 e3 Kd3 a4 g7 a3 c6 a2 c7 e2 Qa4 d1R+ Kc4 e1B Rb1 a1N Nh3 g1N Bh6 d3 Nf4 d2 Rh2 Na6 b8Q Nf3 b7 Nf6 g8B Nd5 Be6 Nb3 Qb4 Ng5 Bfh3 f1R Rc1 Qd6 Bd7 Bg3 Ne6 Bf4 Nc5 e6 Bg4 Be7 Rh1 Bd8 Rg1 Rf2 Qb6 Nab4 Qc6 Na2 Na6 Rdf1 Bf8 d1N Rc3 Ne7 Qh1 Nd5 Kd3 Rb2 Rc6 Nf2+ Kc4 Qa3 Bc5 Nfh3 Bd6+ Kf6 Rg3 e5 Rg2 Qc5+ Kd3 Qg1 Rg3 Nh7 Ke4 Qh2 Rg1 Kg7 Kf5 e4 Ke6 N7g5+ Kf5 Re8 Rg3 Kg8 Kg6 e3 Bb4 Rf8 Bd2 Re8 Kh6 Kf7 Rg1 Ke7 Kg7 Rh8 Qa7 Re8 Qb6 Rb8 Qb5 Rf8 Qd3 Rh8 Qb1 Re8 Rc1 Kd6 Rc6+ Ke5 Rg2 Ra8 b8B Rh8 Ba7 Rb8 Bb6 Rf8 Bba5 Kd4 Bab4 Re8 Bd6 Rh8 Be8 Bf5 Bd7 Be7 Re2 Rhc8 Rg2 Bd8 Kh6 Rc2 Be2 Ne6+ Rg5 Rb2 Bg4 Be5 Rg6 Neg5 Rg8 Bf4 Kg7
rq3Q2/1Pb5/4RN1r/QQn1B3/brB2rRb/1nKp1nb1/b3Q1P1/6k1 b - - 0 1 legal: proof: c4 c5 a4 e5 d4 cxd4 f4 exf4 h4 g5 Nc3 b5 axb5 gxh4 Qb3 dxc3 Qc2 Qa5 Qd1 Qd8 b4 Ke7 e4 Kf6 b6 Ke5 c5 a5 b7 f5 c6 d5 c7 h5 b5 d4 b6 a4 Rb1 c2 Kd2 h3 Qg4 f3 Be2 f2 Bd1 f1N+ Kd3 f4 Kc4 a3 Rh2 f3 Kb3 f2 Kc4 h4 Bf3 a2 Kb3 a1B Ne2 Nh6 Bd2 c1B Bc3 Bd7 c8Q Nd2+ Kc2 f1B Ng3 Nf7 Nh1 Ba4+ Rb3 Bd6 Qc7 Na6 b8Q Nc5 b7 Bc4 Be2 Ng5 Bb4 d3+ Kd1 Kd4 e5+ Ke3 e6 Rh6 e7 Bf6 Nf2 Ngf3 Bc3 Bg3 Rh1 h2 Qa5 h3 Ne4 Bfh4 Re1 h1R e8Q h2 Be5 Rf1 Nf6 Kf2 Qeb5 h1R Qh5 Qd6 Qf8 Kg1 Qg4 Qb8 Qe4 Ng5 Bg4 Ngf3 Qe2 Bg8 Be6 Bb2 Bd6 Bbe5 Bc4 Bf7 Kc1 Be6 Rb4 Ndb3+ Kb1 Bef4 Kb2 Rh2 Be7 Bc7 Kc3 Bf7 Bd5 Na1 Ng8 Bf6+ Qe5 R2h4 Rc4 Nd2 Bd6 Rd4 Re2 Bfh4 Nf6 Rb1 Re4 Rb4 Qh5 Be6 Qe2 Nf3 Rg4 Rf4 Re4 Bf7 Bb3 Bd5 Re6 Bc4 Be5 Bd5 Bc2 Ba2 Bd1 Ra7 Bb3 Ra8 Bd5 Nab3 Bc4
2QQ2Qb/2r1n3/6qB/1q1q1qkp/rN1nR3/1q1PPr2/3rQ3/1R1bN1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 a6 b6 Bh6 e3 Qd4 b5 Kf8 b7 Bh3 b6 Qd8 Be2 Bc8 Bg4 Ke8 Bh3 Bf8 Bd7+ Ke7 Bb5 axb5 Bb2 Kd7 Bc1 Ke8 Kf2 Ke7 g4 Kf6 d3 c5 Ra5 f3 Nc3 h3 Nge2 b4 Ra1 h2 Qa4 b3 Nd5+ Kg5 Ndc3 f5 Qd7 b2 Qf7 b1Q Nf4 Qd6 Rf1 h1Q Qg7+ Qg6 Qe5 Qb3 Nfe2 Bg7 Qd4 f4 Qd8+ Ne7 Bd2 Nc6 b8Q Ra4 b7 Nd4 Na2 c3 Qd7 c2 Be1 c1Q Bc3 c4 Rg1 Qcb1 Bb2 c3 Qd8 c2 Nb4 c1R Qa7 h5 b8Q Rc7 Rc1 Rf8 Ng1 Bh8 Rc4 Bd7 Qbc8 Rf7 Ba3 Q1b2+ Kf1 f2 Rb1 Qd5 Qaa6 Rf5 Qe6 Bc6 Qe4 Bb7 Qf3 Rf6 Kg2 f1Q+ Kh1 Ba8 Qg2 f3 Qe2 f2+ Kh2 Nb5 Re4 Rf3 Kh1 Qbe5 Bb2 Qef5 Bg7 Nd4 Kh2 Qfd1 Kg2 f1R Bh6+ Kh4 Kh2 Qb5 Kg2 Q3d5 Kh1 Q1b3 g5+ Rf4 Kg2 Rd1 Nf3+ Kg4 Kh2 Rd2 Ne1+ Kh4 Re5 Rf3 Kg1 Qgb6 g6 Bb7 g7 Qbg6+ Ng2+ Kg4 g8Q Bc6 Bg7 Kg5 Ne1 Rf1+ Kh2 Qdc5 Qf2 Bf3 Re4 Bd1 Qe2 Rf3 Kg1 Qcd5 Bh6+
5b1N/2K2B1q/2Q1Bp2/2bqNb2/2b2PQN/k1r3nr/n1bPq3/2Rq3N b - - 0 1 legal: proof: b4 b5 f4 c5 e4 d5 Bb2 dxe4 Bf6 cxb4 a4 Bb7 Ra3 Bc8 axb5 g5 Rf3 g4 Bg5 gxf3 g4 h6 Bh4 Qa5 g5 Qb6 g6 Qd8 Bg5 hxg5 Kf2 Kd7 Ke3 Kd6 Kd4 a5 c4 e5+ Ke3 Kc5 h4 f6 g7 a4 h5 f2 b6 b3 h6 Kb4 c5 a3 b7 b2 c6 a2 c7 a1Q h7 g4 Nh3 g3 Be2 f1B Bg4 g2 Ng5 Ne7 g8N Nf5+ Kf2 g1B+ Ke1 e3 Nf7 e2 Bh5 e4 Ne5 Ra3 Ne7 Bc5 Nc3 b1B Bf7 Bc2 N7g6 Qb1 Nh4 Ng3 Qc1 Rb3 Nd1 Nc6 Nf2 Bf5 c8B Rc3 Bce6 Qd5 b8Q+ Ka4 Qd6 Nb4 Qd1 Ka3 Qc6 Na2 Rg1 Rg8 h8N Rg4 Ng2 Rh4 Nh1 Rh3 Nh4 Qb7 Be8 Qh7 B8f7 Bb4 Kf2 Bbe7 Nd3 Bb4 Ke3 e1Q+ Qe2 Qd1 Qg4 Be2 Kf2 Bbd6 Ne5 Bc5+ Kg2 Qd7 Re1 e3 Rf1 Bed3 Re1 e2 Kf3 Bcd6 Ke3 Bc4+ Kd4 Qb7 Rf1 e1Q Rg1 Qee2 Rf1 Bb5 Kd5 Bc5 Rg1 Qa1 Rc1 Qa8 Qb7 Bc4+ Kc6 Qd8 Qb6 Qd5+ Kc7 Qb1 Rg1 Qbf1 Qc6 Qff3 Rc1 Qd1 Rb1 Qfe2 Rc1
q6n/nnBN1qP1/1Pr1Q3/1n2N1Kn/1b1qRQ1N/1b1Np1Rk/r3q3/8 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Be2 g5 Bf3 gxf4 g5 Ba6 Be2 Bc8 Bg4 hxg4 Kd2 Kf7 h4 Ke6 b4 Kf5 c4 a5 g6 e5 c5 d5 h5 f3 c6 d3 Ke3 d2 c7 f2 g7 f1Q b6 a4 h6 a3 h7 g3 b5 g2 b7 a2 b6 Ne7 Qe2 d1Q Nh3 g1Q+ Qf2+ Kg4 Bd2 Nbc6 b8Q Be6 c8N Ng6 Nf4 Bb4 Rh2 Na7 Ne2 Bf7 Rg2+ Kh3 Be1 Re8 h8N Re6 Nd4 Rc6 Nb5 Qb3+ N5c3 d4+ Kd2 d3 Ke3 d2 Nd6 Qc2 Nf5 Bb3 Nf7 Nh8 Qd6 Qc4 N7h6 Qf7 Nd1 Qh1 Qe6 Qd4+ Ke2 e3 Kf3 e2 Ng8 e4+ Kf4 e3+ Kg5 Qcd3 Nb2 d1N Qf4 Nc3 Bg3 e1N Nf6 Qe2 Na3 Ncb5 Nd7 Nd3 Rf1 a1N Nac4 Rg8 Bh2 Ra8 Rg4 Qhe4 Nh4 Qh1 Qb8 Nf4 Nce5 Nh5 Rff4 Ba4 Kh6 Rc1 Kg5 Nc6 Ned3 Nb3 Nc4 Nc5 Ng2 Bb3 Nh4 Ra2 Qbe5 Qhd5 Re4 Nca7 Q5f5 Rc3 Bc7 Qa8 Qf4 Nb7 Nce5 Rc6 Rg3+
2bB1b2/2qr3P/1rB1nP1B/Q3Rn2/2p2b2/1r3BR1/n1knQ1qN/4K1b1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ne2 g6 Ng1 g5 g4 Nh6 f5 Ng8 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Qd5 Qe2 Qd8 Qg4 hxg4 b6 c3 h4 Kd7 b4 Kd6 d4 Kd5 g6 e5 b7 a5 h5 c5 b5 e3 b6 Ke4 h6 g3 d5 g2 d6 c2 d7 e2 f6 Kd3 g7 c4 Nf3 Ra6 Rh3 g1B Rh2 e4 Ba3 c1N Rf2 a4 Bg2 Nc6 b8B Rh7 b7 Nd4 Bh3 Ne6 Bbd6 Ne7 b8Q Nf5 Bg4 Qc7 Nd2 f3 Qb2 Rb6 Bac5 a3 Be3 Qb8 Rg2 Qc7 Qe5 a2 Be7 Kc2 Rb1 a1R Nf1 Ra5 Rb5 Ra3 Rg3 Rb3 Nh2 Na2 Bf4 Be3 Bg5 Bf4 Kf2 e1B+ Kf1 e3 g8B f2 Be2 Ned4 Bd5 Ne6 Bef3 Bd2 Ke2 f1N Bc6 Bb4 Ra5 Bc5 Rb5 Rg7 h7 Bd4 Bh6 Bc5 Ke1 e2 Qe3 Bd4 Re5 Rf7 Kf2 e1Q+ Kg1 Qa5 Kf2 Qc5 Ke1 Qd5 Be2 Qg2 Bef3 Kb1 Qd2 Bg1 Qa5 Rg7 d8Q Kc2 Qd4 Rf7 Bd8 Rd7 Qf2+ Nd2 Qe2
b4Rr1/2Nrp3/3QK2Q/Bn2Q2r/Pb5n/qk1qq2R/1Q2q1P1/3B2rb b - - 0 1 illegal: No possible last move
3Qb2B/nKPbqQ1r/1b3b2/3pB3/NnR4P/nq6/k3n1B1/r2B1qN1 b - - 0 1 legal: proof: b4 c5 g4 e5 d4 cxd4 f4 exf4 a3 h5 a4 hxg4 Bd2 b5 axb5 g3 Ra3 g2 Rg3 fxg3 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 a5 c4 f5+ Kf4 g5+ Kf3 f4 Ke4 a4 h4 a3 e3 d3 b6 g4 b5 Kc5 b7 Kb4 Kd5 d2 b6 a2 e4 a1N c5 f3 c6 f2 e5 Bg7 e6 Nf6+ Kd6 Nd5 e7 Rh7 e8B Bf6 c7 Nc6 b8B Na7 b7 Nc2 Bd3 Kb3 Ba3 f1Q Bb2 Ka2 Be2 Na3 Qc1 d1B Qe3 Ba4 Qf2 Nb4 Bd1 Qc4 Bg6 Qb3 Be4 Bc6 Kc5 d5 Kb6 B8d7 Qf4 Ba4 Be5 Qe7 Qf3 Be8 Qf4 Bad7 Nc3+ Kb2 Na4+ Ka2 Ne2 g1N Bg2 Nh3 Qf1 Nf4 Ng1 Ne2 Qf5 Bh8 Qf7 Bf6 Bf3 g2 Rh3 N7b5 Ba7 g3 b8Q Nc1 Kb7 Ne2 Bb6 Ra5 Bh5 Na7 Qd8 Ra6 Bbd4 Ra5 Nf3 g1Q Ba1 Qe1 Ng1 g2 Rc3 Qf1 Rc4 Ra6 Bf3 Ra5 Nh3 g1B Bg2 Bb6 Ng1 Rc5 Rd4 Rc1 Rc4 Rb1 Bab2 Ra1 Bbc3 Bg5 Bh8 Bf6 Be5
1Nb2RR1/rP4B1/npn1QRK1/q1nPr1Q1/qk2R3/b5q1/b2b1n2/1N6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 a5 exf4 b4 Qf6 e3 Qb2 Qb3 Bh6 Bd3 Kf8 Bc2 Qf6 Qb2 Qd8 Ba4 bxa4 b5 Ke8 b6 Bg7 b7 Bf8 Qb6 axb6 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 f5+ Ke5 h5 d4+ Kb4 d6 c5 d5 h3 a6 h2 g5 a3 a7 f3 g6 h4 e4 c4 d7 a2 g7 f2 Bh6 f1B Na3 c3 Bg5 h3 Be3 c2 Ne2 c1B Bh6 f4 Kf5 f3 e5 f2 e6 Qc7 d8R Na6 Bf4 Ne7+ Kf6 Bd2 g8R Rh5 Rg6 Nc6 e7 Re5 Re1 a1Q Rhg1 h1N e8Q h2 Nb1 Qa4 Nd4 Ng3 Qe6 h1N Bh6 Bc4 Bg7 Ba2 Re4 Bd6 Rh6 f1Q+ Kg6 Qfb5 Rf8 Nf2 Rg2 Qba5 Rg1 Rb8 a8Q Be7 Rh5 Qd6 Rhf5 Qc7 R5f6 Qd6 Qa7 Ra8 Qb8 Ra7 Rg2 Nf1 Qc7 Ng3 Qcd7 Qc7 Qf5 Bd6 Qg5 Qb8 Qe6 Bc5 Rh4 Nge4 Rgg4 Qc7 Rhh8 Be7 Rhg8 Nec5 Rh4 Re3 Re4 Qg3 Rg4 Re5 Re4 Bd6 Re8 Nd7 Qf5 Kc4 Bh8 Ncb8 Qe6 Ba3 Ref8 Ndc5 Bg7 Kb4 Ref4 Nc6 Re4 Nd8 Nc6+ Kb5 Nb8 Nc6 Re3 Kb4 Re4+
q1k3rN/PN6/n1brr3/B1N2K2/b3rn1Q/p1b3B1/P1q3Nb/2Rq2Q1 b - - 0 1 legal: proof: g4 g5 b4 h5 f4 gxf4 d4 c5 g5 f3 Bg2 cxd4 Nd2 a5 Bh3 a4 Bf5 Qa5 bxa5 e6 Bg4 hxg4 Rb1 e5 Rb6 Ra7 Rf6 Ra8 Rf4 exf4 Kf2 Kd8 c4 f5 h4 b5 e4 d5 e5 a3 c5 g3+ Ke1 g2 Kf2 b4 c6 b3 g6 d3 e6 b2 h5 b1Q h6 d4 h7 Ra6 g7 Bb7 Qe1 Ne7 g8N Bg7 Qd1 Qc2 Bb2 Nd5 Nh6 Rg8 Ne2 g1B+ Ke1 Bh2 h8B Bf6 Ba1 f2+ Kf1 Rb6 Nb3 d2 a6 d3 a7 Na6 Nc5 Be5 Qe1 d1R Rg1 d2 Bc3 Ba8 Bb4 Bc3 Ba5 Bb7 Bg7 Kc7 Kg2 f1B+ Kf2 f3 e7 f4 e8Q Bh3 Bd4 Bd7 Qg6 Ba8 Nf7 Bb7 Kf1 f2 Kg2 f1R Qh4 Rfe1 Nh8 f3+ Kf2 Ba8 Nf4 Re3 Qgg4 Rde1 Rf1 Re6 Qg1 Bb7 Ng2 Nf4 Be3 Be8 Bd4 R1e5 Rc1 Re1 Be3 d1Q+ Bd2 R1e5 Ne4 Ba8 Ke3 f2 Be1 Qd8 Kf3 f1Q+ Bf2 Qe1 Nc5 Re4 Bg3 Bb7 Ne3 Qa8 Ng2 Rf8 Kg4 Rg8+ Kf5 Qed1 Qh1 Kc8 c7 Ba4 Qg1 Bd5 Nd3 Kd7 c8N Bb7 Nd6 Bd5 Ndf7 Kc8 Nd8 Rbd6 Nc5 Bdc6 Ndb7
4rNnK/2n3N1/3rq2k/1pn4N/PQQ2rr1/1B1q1nNr/5bRP/3R1q2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 h6 Qd3 b6 Be3 Bb7 Nb1 Be4 Bg5 f4 Qd1 Bf5 gxf5 hxg5 Kf2 Kf7 a4 d5 e4 b3 c4 g4 c5 g5 e5 Kg7 f6+ Kh6 e6 g3+ Ke1 d3 Kd2 g2 Kc3 b5 Kd4 f2 Ke5 f3 c6 g4 f7 d2 e7 d4 e8N b2 c7 d3 c8Q g3 Nc7 Qe8+ Ne6 Na6 Qc7 Bc5 Qc8 Nc7 Nc3 b1Q Be2 f1Q f8N f2 Nf3 g1N Ra2 g2 Ng5 Nf3+ Kf5 g1R Qb3 d1N Ngh7 d2+ Ne4 Nb2 Bc4 d1R Ng7 Qbd3 Nf6 Rg4 Qb4 Qf7 Qe6 Re8 Bb3 Qc4 Ra1 Ne5 Qb6 Qg2 Nge6 f1R+ Nf2 Rd6 Qc6 Nbd3 Rg1 Be3 Qe4 Nc5 Rd1 Qh1 Rg2 Qd3 Nf4 Qg1 Nh1 Kg7 Ng3 Rh3 Nh1 Qdc4 Ng3 Kh6 Qd3 Qcd5 Qdc4 Qe7 Nfh5 Rf2 Ng7 Qf1 Nge6 Rf3 Qd3 Bf2 Qdc4 Re3 Nfh5 Ree4 Qbc3 Qd7 Qa5 Qdd3 Qab4 Ne7+ Kf6 Nf3 Kf7 Qc8 Neg7 Ref4+ Nf6 Nf5 Kg8 Ne7+ Kh8 Ng8 Nfh5 Qd7 Qc2 Qe6 Qcc4
n1RN4/bKP5/1b4r1/1bb2r1r/4RP1r/kN4Q1/Q1pbQ2b/Bb1Q2n1 b - - 0 1 illegal: No possible last move
K3b2N/1PP1r3/Rrk4b/5R1b/pbnB1b2/Nn2QR2/5rbQ/rR3b2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 Ra3 b5 Ra1 bxa4 Nh3 h5 Ra2 f5 Ng1 f3 Ra1 f4 Bg2 Qf6 Bh3 Qf5 gxf5 Bd6 Bg4 hxg4 Nh3 Bc5 Ng1 Bf8 Kd2 g5 Kd3 a5 Kc4 d5+ Kb5 Kd7 Kb6 d3 h4 d2 c4 a3 e4 a4 b4 d4 b5 d3 h5 g3 e5 g2 h6 f2 c5 f1R f6 f3 f7 g4 h7 f2 Ra2 g3 Rb2 a2 Qc2 a1R Nc3 d1B Qd2 Ne7 Rh6 Bf3 Qd1 d2 Qe1 d1B Rb1 Nf5 Nh3 g1B Nf4 g2 Ng6 Ne3 Bb2 Bh2 Rh3 Rg8 h8Q Bh6 f8R g1B Rf5 Bg2 Rhf3 B2f4 Qh7+ Rg7 Nh8 Re7 c6+ Ke6 c7 Kd7 Qe2 Na6 e6+ Kd6 Qe1 Bd7 Kb7 Be8 b6 Nc4 Qe3 Rb8+ Ka7 Bgh2 Nb5+ Kc6 Na3 Nc5 Bd4 Rb7+ Ka8 Nb3 Ra5 Bd6 Ra6 B2f4 Qc2 Bb4 Qce2 Rf7 e7 Re1 Q2d2 f1B Qdf2 Re2 Qh4 Rf2 Qh2 Bd7 e8R Re7 Rf8 Be8 Rh3 Bdh5 Rf3 Rb8+ Ka7 Rd8 Rf5 Rd5 Ka8 Rb5 b7+ Rb6 Bf6 Be5 Bg7 Bef4 Bd4
1Q2n1r1/P1b1pr2/K1nq3N/1r2Bq1k/4n1Q1/B1Q2p2/P1q1N1bb/2Q1R3 b - - 0 1 legal: proof: e4 a5 d4 f5 f4 fxe4 b4 g5 bxa5 c5 f5 cxd4 g4 Bh6 Nd2 Bf8 Bh3 Nh6 Rb1 Ng8 Rb3 h6 Rf3 h5 Rf4 gxf4 g5 Qc7 Bg4 hxg4 Ba3 Qb6 Bc1 Qd8 Ke2 Kf7 c4 d5 h4 b5 a6 b4 h5 d3+ Kf1 d4 h6 b3 a7 g3 f6 Kg6 h7 g2+ Kf2 e3+ Ke1 e2 f7 b2 c5 b1Q c6 f3 c7 Bh6 f8B Qd6 Rh5 Bh3 c8Q Nc6 Bg7 Nf6 Qb3 Rg8 h8Q Ne8 Nf1 d2+ Kf2 e1N Ne2 d1Q Qbb8 d3 Ke3 d2 Nh2 Qdc2 Ng4 d1R Be5 Nd3 Ba3 g1B+ Ke4 Bg7 Nh6 Bg2 Rh1 Bh2 Re1 Kh5 g6 Nc5+ Ke3 Bf6 g7 Rd5 Qcc7 Rf8 g8Q Ne4 Qhg7 Rc5 Qgb3 Rb5 Qc3 Rf7 Qg3 Qa4 Qc1 Bg7 Qa5 Qac2 Qc3 Nc5 Qf4 Qf5 Qfb4 Ne4 Qbd4 Qb3 Kd3 Qc2+ Kc4 Bf6 Qdb6 Bg5 Qa5 Be3 Qb4 Bb6 Qa4 Rb2 Qb4 Bc7 Kb5 Rb1 Ka6 Rb3 Qbc4 Rb5 Qe6 N8f6 Qb7 Rg8 Qb8 Ne8 Qg6+ Kh4 Qg3+ Kh5 Qg4+
2R2r2/pp2N2P/2r1Qkq1/1bqQ2N1/nQ2n2b/4Q1br/2B2qP1/BK2n3 b - - 0 1 illegal: No possible last move
1bRn4/rpN1B1b1/5pQP/4B3/1krn2qb/4P1R1/3KBnn1/QBr4n b - - 0 1 illegal: No possible last move, all moves rejected
3q4/1n4rb/N1n1R1P1/nQpP1p2/b3Q2n/2qBr3/k2B1K2/N1rN2nN b - - 0 1 legal: proof: g4 d5 c4 dxc4 h4 e5 f4 exf4 b4 a5 a4 axb4 g5 g6 Ra3 Bg7 Rd3 Ba1 Rd4 f3 Rf4 Bf6 Rf5 gxf5 g6 Bg5 hxg5 f4 e4 Ke7 d4 Ke6 g7 b5 a5 h5 a6 c5 a7 b3 e5 Kd5 e6 b2 e7 b4 e8Q h4 Rh3 b3 Be3 c3 Qd3 c2 Qg6 c1R+ Kf2 Nf6 g8N Bd7 Qg7 Rh7 Qe7 Nc6 Ne2 Kc4 d5 Ne4+ Kg1 f2+ Kg2 f3+ Kh2 Nd6 Qh6 Rg7 Qhe6 Nb7 Bg2 f1Q Qf8 f2 Ng1 Qe1 Be4 f1N+ Kg2 Ng3 Kf3 Nf5 Ne7 Qc3 Ne2 f6 Rh2 h3 Ng3 Nh4+ Kf2 Kb4 Rh1 h2 Na3 b1B Bd2 b2 Nc2+ Kb3 Bd3 Ka2 Re1 Rc8 a8N h1N+ Kg1 Rc7 Qe8 Nf2 Nh1 Nh3+ Kf1 Rc8 Qe4 Ng1 Nc7 Ra8 Kf2 Ra3 Na1 Bc2 Ke3 b1N Kf2 Bf5 Qd7 Bh7 g6 Ba4 Nf5 Rb3 Ne3 f5 Na6 Na3 Nd1 Nc4 Qc7 N4a5 Qb6 Qc2 Qb5 Rc3 Bf1 Re3 Bd3 Qc3 Qg4 Rh3 Re6 Re3 Qe4
1b1bB1Q1/r1P3Qk/1Q2p2N/N1b2rq1/2Qq4/1Kn1q2R/1P2pBb1/b4n2 b - - 0 1 illegal: No possible last move
Q1K2nNb/q1bP3b/4bR2/Qrbnk3/3RP1Nb/7p/4N2p/1Bb3Nr b - - 0 1 legal: proof: e4 b5 a4 e5 h4 g5 b3 gxh4 Ba3 d6 Bc5 d5 c4 dxc4 f4 exf4 Be3 fxe3 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 Ke2 Ke7 Kf3 Ke6 Kf4 a5 g4 c5 d4 h5 b6 f5 g5 e2 b4 e1B b7 a4 b5 c3 g6 h3 g7 h2 b6 a3 Ne2 h4 Ng3 c2 Rg1 c1B+ Nd2 a2 Qa4 c4 Qe8+ Qe7 Nh5 c3 Qb5 c2 Qa5 Nd7 b8Q Ngf6 g8N h3 b7 Bh4 Rb1 a1B Ng3 Rh5 Ne2 Qf7 Rg7 Bc5 Rb4 Nf8 Rg6 Ba3 Qba7 c1B b8N Kd6 d5 Be6 Nc6 Rd8 Q7a6 Qa7 Rd4 Bb6 Rb4 Bc7 Rd4 Bc5 Rh6 Rb8 Ne5+ Rb6 Qc8 Rb1 Ng4 Bab2 Qa8 Bc3 Ke3 f4+ Kd3 f3 Kc4 f2 Nf3 Bf5 Nfg1 Bh7 Rg6 Ra1 Kb5 Rf5 Ne3 Ke5 Kc6 Rh5 d6 Nd5 d7 Rf5 Rf6 Rb1 Nf4 Rb5 Bd3 f1B Bb1 Bc4 Nfe2 Rf1 Bc2 Nb6 Bd3 Be6 Bb1 Nd5 Qb6 Qa4 Kb7 Qa7+ Kc8 Rd1 Qa5 B3b2 Ng3 Ba1 N1e2 Rh1 Ng1 Bc3 N3e2 Rb3 Rf1 Kd6 Rdd1 Bh8 Rf6 Rb5 Rd4 Ke5 Ng4+
1brB1KQ1/1n2N1r1/1Q4PR/kb1Bb2r/1pq1B2N/2BpP1q1/2q4n/4q3 b - - 0 1 illegal: No possible last move, all moves rejected
KBB1n3/4k2b/pb1qP2R/1q1Qr2B/1n1r2P1/Qr2r3/6Np/N1Bn1q2 b - - 0 1 legal: proof: f4 c5 d4 g5 h4 gxh4 a4 e5 b4 exf4 Ra3 b5 axb5 cxd4 c4 Qa5 Rb3 Qd8 Rc3 dxc3 Kf2 f5 Kf3 d5 e4 h5 g4 d4 b6 d3 b7 c2 c5 d2 c6 h3 c7 h2 e5 a6 b5 h4 b6 h3 Bd3 Bc5 Bb5+ Ke7 Ba3 c1R Nc3 Rb1 Ba4 Nf6 Qe1 d1N Nce2 Rb3+ Qc3 Re8 Bc1 Qd6 Nd4 Nc6 b8Q Nb4 b7 Bb6 Nge2 Rd8 Qa7 Ne8 b8B Be6 Bc6 Bg8 Nc2 Bh7 c8B+ Rd7 Qb7 Ra7 Re1 h1R Na1 h2 Ba4 Rg1 Qd5 Rac7 e6 Rc5 Rf1 Rh1 Rf2 Re1 Bb5 Rb2 Qa3 Rb3+ Bd3 Rd8 Nd4 Re5 Ndc2 Rcc3 Ne1 Rd7 Ng2 Rd8 Re2 Rd7 Re3 Rd8 Ke2 f3+ Kd2 f4 Bg6 f2 Rh3 f1Q Rh6 Rce3 Bh5 Nd3 Kc2 f3 Kd2 f2 Kc2 Rb5 Kd2 Rb4 Kc2 Rd4 Kb3 Nb4+ Ka4 Qc4 Bb2 f1Q Bc1 Bc5 Ka5 Rd7 Qa4 Rb7 Qa3 Bb6+ Ka4 Bc5 Qf3 Na2+ Ka5 Rbb3 Qc6 Bb4+ Kb6 Ba5+ Ka7 Nb4 Qe4 Bb6+ Ka8 Qb5 Qd5
KN3R2/B2b2p1/3rkqQ1/B1P1q1r1/4B2n/3nrBPb/1p2N1Q1/1qn2n2 b - - 0 1 legal: proof: f4 b5 d4 a5 b4 axb4 f5 c5 a3 cxd4 f6 b3 Kd2 b2 Qe1 b4 Qd1 exf6 Ke1 f5 Qd3 f4 Qd2 Ra7 Qd1 Ra8 g3 h5 Bg2 h4 Bh3 b3 Bf1 Bb4+ axb4 h3 Ra7 Qa5 Rc7 Qb6 Rc3 Qd8 Rf3 Nh6 Rf2 Ng8 Rg2 hxg2 Kd2 Ke7 Kd3 d5 e4 f5 c4 f3 h4 f2 h5 f4 h6 f3 c5 Nc6 h7 Ra1 b5 Qc7 b6 Bh3 e5 Ra3 b7 Nh6 b8B Nf5 e6 Qe5 Bd2 Nh4 Ne2 g1N Nbc3 b1Q+ Qc2 b2 Bg2 f1N Ba7 f2 Be4 Rf8 h8Q Rf5 Qh6 Rg5 Qh7 Kf6 e7 Ke6 e8B Rb3 Nc1 Ne2 Na2 Ne3 Bh5 f1Q Be1 Nc1+ Kd2 d3 Nb4 d4 Na6 Qf7 Nb8 Nb4 Rf1 Qg6 Rf7 Qgf6 Qg6 Ra3 Bhf3 Nf1+ Kd1 Rb3 Qg2 d2 Ne2 Re3 Rf8 Nd5 Qh1 Nf4 Qh2 Qa1 Kc2 d1R Qg2 Rdd3 Bd2 Qb1+ Kd1 Ra3 Bc3 Ra6 Ba5 d3 Ke1 d2+ Kd1 Qa2 Kc2 Qa1 Ng1 Nfd3 Ne2 Na2 Kb3 d1B+ Kc4 Nac1 Kb5 Qb1 Qh5 Rd6 Qg6 Rd7 Ka6 Rd6+ Kb7 Ba4 Ka8 Bb5 Qh2 Bd7 Qg2
4BRRb/1R1QNp1R/4nr2/1pq1BPr1/1kn2n2/1P6/2q2b1K/1b1r1r1Q b - - 0 1 legal: proof: e4 c5 h4 d5 a4 dxe4 h5 b5 b3 c4 h6 c3 Na3 gxh6 a5 h5 Nc4 h4 Nb2 cxb2 Ra4 Qxa5 Ra3 Qc7 Rxa7 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kc6 d4 b1Q g4 h5 Kg2 e5 c4 e3 g5 h3+ Kg3 h2 c5 h4+ Kg2 e4 g6 h3+ Kg3 e2 g7 e1N Ra7 e3 Ne2 Qc7 Bd2 Rh6 Ra2 Na6 Bg2+ Nf3 Rb2 Qc2 Qb1 Bf5 Rc1 h1R Bc3 Ne7 g8R h2 Re1 Kd5 c6 Ng6 Qa1 Qe5 c7 Nc5 c8R Bg7 Rcf8 Bh8 Qc1 Kd6 d5 Nd2 Nd4 e2 Nc6 Nc4 Ne7 Ne6 Rd1 Kc5 d6 Be4 d7 Rf1 d8Q h1R Rd7 Qf5 Bf6 Kb4 Rb7 Qc5 f5 Ngf4 Be5 Rf6 Qd7 Bd3 Bc6 e1B+ Kg4 Bf2 Kf3 Ng6 Kg2 Rd8 Qb1 Rhg1+ Kh2 Ngf4 Qd1 Be4 Q1d5 Bd3 Qh1 Rg5 Rb1 Qa2 Rd1 Bb1 Rd3 Qc2 Rh3 Nd4 Rh7 Nde6 Qdd5 Rd6 Be8 Rd8 Qc6 Rdd1 Qd7
5r2/4Pp1k/K2b1r2/B2B1BQ1/6p1/R3b1Rb/nBQ1P2r/1qrN1qqn b - - 0 1 illegal: No possible last move, all moves rejected
RQ3Qq1/q1pb2rQ/Pp1q1b1K/BNn4B/8/1r4b1/Q2PkNr1/q6n b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 hxg4 f4 e5 Qb3 exf4 Ra2 g3 Ra3 g2 Qd1 Nf6 Rc3 Ng8 Rg3 fxg3 h4 Ke7 e4 Kf6 Ke2 Ke5 Kf3 Kd4 Kf4 g5+ Kf3 f5 e5 b3 a5 b2 e6 f4 Kg4 f3 d6 f2 d7 Nh6+ Kh5 g4 e7 Nf5+ Kg5 Rh7 a6 Bg7 h5 Bf6+ Kf4 Rg7 Bb5 f1Q+ Qf3 Qe1 Nc3 b1R e8Q Rb3 Ba3 Qa1 Nh3 g1Q h6 g2 h7 Ng3 Rh2 Nh1 h8Q g3 Qh4 Qf2 Bb2 g1B Qg8 g2 Qhh7 Qg3+ Kf5 Bf2 Be2 g1Q Qf7 Be1 Nf2 Qg8 Rh5 Qd6 Nb5+ Kc5 Bc3 Rg2 Ng4 Bg3 Ba5 Qf2 Qf8 Qfg1 Bd1 Kc4 Rg5 Qa7 Nf2 b6 Qfh5 Bb7 d8Q Nd7 Qb8 Nc5 Q5f7+ Bd5 Kg4 Be6+ Kh5 Na4 Bg4 Nc5 Rd5 Bc8 Kh6 Bd7 Qb7 Re8 Qb8 Re7 Qe6 Rg7 Bh5 Re3 Qef7 Rb3 Re5+ Qd5 Re8 Qe6 Ne4 Kd3 Rc8 Qd6 Rd8 Bg4 Nf2+ Ke2 Qc4+ Ke1 Qa4 Bd7 Qa2 Kf1 Qb7 Ke1 Ra8 Kf1 Qbb8 Ke1 Ng4 Ke2 Nf2+
r1bQB1r1/2K5/Q4n2/rpk3bP/4R1nq/1n1P3Q/r1QrN1p1/r1R3N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Bb2 exf5 Bf6 f4 Bh4 Qd7 Bf2 Qd8 Bg3 fxg3 h4 Kd7 e4 Kd6 Ke2 b5 Ke3 g5 Kd4 c5+ Ke3 f5 a4 c4 Kd4 g2 h5 c3 a5 f4 a6 g3 d3 c2 a7 c1N Ra5 b3 Ra3 g4 Qf3 b2 Rc3 Be7 Be2 Nh6 Nd2 b1R Rc4 Ra1 Nb1 Bg5 Nc3 Ra2 Rb4 Rg8 e5+ Kc7 d6+ Kb6 Kd5 Nd7 e6 Nf6+ Ke5 Nb3 d7 Kc5 e7 Rd2 Qf1 f3 e8Q f2 Re4 Ra2 Qb1 f1R Qc2 Rf2 Bf3 Rd2 Qe6 Qe7 d8Q Ra5 Nh3 g1R Bg2 Rga1 Rc1 R1a2 Ng1 Qd7 Bf3 g2 Qf5 g3 Qh3 Qh7 Bg4 Qb7 Bd7 Nhg4+ Ke6 Qc7 Ke7 Qf4 Be8 Rb8 a8Q Qf2 Nf3 g1R Qa6 Rgd1 Ng1 g2 Qd7 Qg3 Kd8 Qh4 Kc7 Ra8 Qd8 Ra1 Qb1 Rda2 Qc2 Rd2 Nce2+
1bb3Q1/RPNk1p2/3P4/3R2BK/1rB2b2/nqQ2R2/2pn1b1b/3nrRb1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 fxg3 Nc3 h5 Qc2 h4 Ne4 g2 Ng3 hxg3 Qa4 Qf6 Qd1 Qd8 d4 a5 b4 c5 e4 g5 Ke2 a4 Kf3 a3 h4 g4+ Kf4 c3 b6 c2 b5 a2 h5 c4 d5 c3 e5 Ra4+ Bc4 Bd6 b7 Nh6 b6 Rb4 Rh3 Nc6 b8Q Nd4 b7 Kd7 Be3 c1B Qa8 c2 Qd3 Qb6 Kg5 Nb5 Qc3 Na3 Nf3 g1B Nd4 g2 Nb5 g3 Nc7 Nf5 h6 Bf2 h7 g1B Kh5 g2 Bg5 Bh2 Rf3 Re8 h8R Bcf4 Rf1 a1N Rh6 g1B Qb8 Bdc5 d6 Ne3 Rh7 Nb3 e6+ Kc6 e7 Nd2 Rh6 Kd7 Re6 Bd4 Re5 Nd1 Rd5 Qb5 Qa8 Ba7 Qb8 Qa4 Qa8 Qb3 Qb8 Rg8 e8R Rg7 Qa8 Bb8 Ree5 Rg8 Ra5 Rd8 Red5 Re8 Ra7 Re1 Raa5 Bba7 Nb5 Re4 Qg7 Re1 Qg8 Bb8 Nc7 Nb5 Ra1 Qe3 Qa3 Qd3 Qb2 Qb3 Ra7 Na3 Qc3
5K2/1Pq2QBN/r3q2b/QbRQq2n/4np2/2Bpq2Q/2q1k1P1/1q3Nr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d3 e5 d4 cxd4 e4 Nh6 b4 Bc5 f5 Bf8 Bc4 Ng4 Be6 Nh6 Ra3 Qb6 Rf3 Ng8 Rf4 exf4 e5 Qc7 Bc4 Ke7 e6 Qd8 Ba2 Kf6 e7 Kg7 Be6 fxe6 Bb2 Kf6 Bc1 Kf7 Ke2 Kf6 Kd3 Ke5 Kc4 Ke4 Kc5 d5 c4 a5 f6 h5 b6 d3 f7 d2 b5 Ke3 b7 d4 b6 a4 Bb2 e5 Qb3+ d3 Qc2 d1Q Ba3 h3 Bb2 h2 Na3 h4 Nh3 e4 Bg7 Na6+ Kc6 Nf6 b8Q Nh5 e8Q Qc7+ Kd5 Nc5 b7 Ra6 Nb1 a3 Qd7 a2 Nd2 a1Q Qca4 Ke2 Bc3 e3 Qa5 Qc2 Rc1 h1Q Ng5 h3 Nh7 h2 Nf1 Bh6 f8B Ne4 c5 Qg1 c6 h1Q Qf7 Bd7 Qd8 Qab1 Bfg7 Qh3 Qf5 Be8 Ke6 Bd7+ Kf7 Qf2 Qff6 Qe6+ Kg6 Qee5 Kf7 Qf3 Qe6 Qg4 Qg5 Rc8 Qe8 Qge6+ Kf8 Rca8 Qd5 Ra1 Qf5 R8a6 Qeg6 Qa5 c7 Bb5 c8Q Qac7 Qgf6 Kf2 Q6g6 e2 Qgg5 e1Q Qf7 Qe3 Qgf5 Ke2 Qcd8 Qcc6 Qa5 Qcc7 Qh3 Qbb3 Rb1 Qba2 Rb4 Rc1 Rc4 Qab1 Rc5 Re1 Nh2 Rg1 Nf1
1bNrrQQ1/Qp1nr3/3nrpP1/6q1/1bk1r2P/3nB1nK/5Q2/R4RN1 b - - 0 1 legal: proof: e4 c5 f4 a5 d4 cxd4 b4 axb4 f5 d3 f6 gxf6 Na3 f5 Nb1 f4 g4 h5 g5 d5 Be2 d4 Bf3 Be6 Bg4 Bd5 exd5 hxg4 Kf2 Kd7 Kg2 Kd6 a4 Kc5 c4 e5 h4 f3+ Kg3 f2 d6 f1N+ Kg2 b3 g6 e4 d7 b2 a5 e3 a6 g3 a7 d2 Nh3 e2 Ra6 e1R Qe2 d1R Ra4 d3 Nd2 b1R Qe4 Nf6 Qe6 Re4 Ra2 Rb6 Qg4 Ne8 Rh2 Rbe6 Qf4 Rh7 Rh1 Nd6 Ra1 Qg5 d8Q f6 Ng1 Rhe7 Kh3 g2 Qf2+ Kb4 c5 Nd7 c6 Ng3 Nc4 d2 c7 Rde1 c8Q d1N Qf3 Nb2 Be3 Nd3 Nb6 Rb8 a8Q Re8 Ne2 g1B Qf2 Bh2 Ng1 Kb3 Qc5 R8e7 Qe8 Rd8 Nc8 Re2 Qca7 Kc4 Qf7 Ree8 Qh7 R6e7 Qg8+ R4e6 Bb6 Re4 Be3 Nb5 Qa6 Rg7 Qd6 Nh5 Qda3 Bb8 Q8a7 Ng3 Nf3 Rh7 Qe7 Rg7 Qef7 Bb4 Rhf1 Nd6 Qff8 Rge7 Ng1
qr1nbn2/1pb2Q2/1P5R/2b1P1QK/3N1Br1/B2rQ3/NQ1n2p1/1n2b1k1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 cxd5 e5 Ba3 exf4 Bb2 Rh3 Bc1 Rh8 a4 Qf6 b5 Be6 Ra3 Qg5 Rb3 Bc8 Rb4 Qd8 e3 axb4 Bc4 Kd7 Qf3 Ke8 Ba2 b3 Qd1 bxa2 Kf2 Kd7 d4 Kd6 h4 a1B a5 g5 a6 f5 b6 c5 a7 g3+ Kf3 c4 e4 c3 h5 g4+ Ke2 f3+ Ke3 f4+ Kd3 c2 h6 f2 Ke2 f1N h7 g2 Bd2 c1B Nc3 f3+ Kf2 g3+ Ke1 f2+ Ke2 Nh6 Kf3 Bd7 Nh3 g1R Na2 Be8 Qe2 Nd7 Nf4 Rb8 a8Q Bc3 Qe3 Nf7 Kg4 g2 Qa7 Rg8+ Kh5 Rg4 h8Q B1b2 Bc1 Nd2 Ne2 f1N Qa8 Ba1 Ba3+ Bb4 Qa4 Nb1 Qab3 Nfd2 Qb2 Rf1 Qg7 Rf3 Rh3 Qc8 Rh4 Nd8+ Qf7 Be7 Rh1 Nf8 Rh4 Kd7 d6 Kc6 d7 Bec5 d5+ Kb5 Nd4+ Kc4 Qh6 Kd3 d6 Rfg3 Qe6 Ke3 e5 Rf3 Qh6+ Kf2 Qg5 Kg1 Rh3 Nc6 d8B Rd3 d7 Bd6 Qf4 Bc7 Bg5 Nd8 Qg3 Be7 Bf4 Bh4 Qe3+ Bf2 Qb3 Bc3 Qb2 Bb4 Qe2 Be1 Qf3 Nc6 d8Q Bc5 Qg5 Nd8 Qe3+ Bf2 Qe4 Qd7 Kh6 Qa4 Qe3 Qa5 Kg7 Qa8 Rh6 Nfe6+ Kg6 Nf8+ Kh5 Nfe6 Qf3 Nf8 Qe2 Be1 Qe3+
6Q1/1N4q1/B1BbbQ2/3kN1rr/1P3n1r/1b3pRQ/rqp1Q2P/1b2n1K1 b - - 0 1 legal: proof: g4 d5 c4 dxc4 f4 b5 a4 g5 b4 gxf4 g5 e5 g6 h6 Bb2 Qf6 Ra3 Qd8 Rf3 e4 axb5 exf3 Bf6 Na6 Bh4 Nb8 Bg5 hxg5 Kf2 Kd7 d4 Kd6 e4 c5 b6 f5 g7 a5 b7 c3 e5+ Kd5 e6 a4 e7 a3 e8Q a2 Qee2 a1Q Qb5 g4 Ne2 g3+ Kg1 g2 Qda4 c2 Qd3 c1R Qdb5 Nd7 b8Q Qg5 Qaa6 Rh5 Ng3 Ne5 Nd2 Nf6 g8B+ Be6 Q5e8 c4 Kf2 g1R Qab6 c3 Bh3 Qg7 Q6d8+ Bd6 Qa7 Qb2 Qad7 Ra2 Ne4 Rgg5 Bg2 Rc2 Rg1 Nd3+ Kf1 f2 Nf3 Ne1 Nc5 Rh4 Nb7 Nh5 Bh1 Re2 Rg2 Re3 Ne5 Reh3 Qf6 c2 Ke2 f1B+ Kf2 f3 Rg3 f4 Kg1 Bc4 Bh7 Bb3 Bd3 Ra6 Be2 Ba2 Qg8 Bb1 Qde8 Ra2 Ba6 Ke4 d5 Kd4 Bg2 f2+ Kh1 f1B Kg1 Bc4 Qf5 Bc5 d6 Bb3 d7 Bd6 Bc6 f3 d8Q Nf4 Qdf6 Rhh5 Qee7 R3h4 Qh3 Ng6 Qee8 Nf4 Ba4 Kd5 Qb5+ Ke4 Qe2+ Kd5 Bc6+
4n3/N2b1qbn/1B3Qn1/b1K1bqRp/rRP3Q1/p1k1P3/5B2/RR1r1n2 b - - 0 1 legal: proof: f4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 e5 fxe5 g6 h6 Bc5 Kf2 Ba3 Ke1 Bf8 g4 Na6 g5 Nc5 Bg2 Na6 Bf3 Nb8 Bh5 Qe7 Nc3 Qd8 Nd5 Nc6 Ne7 gxh5 g6 Nb8 g7 Qb6 Ng6 hxg6 Rh4 Qc7 Rh1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 d5+ Kb5 a5 b4 f5 c4 g5 h7 d3 Qf1 g4 Bg5 f4 Bh4 d4 Rh3 f3 Qf2 a3 Qe3 d2 Be1 d1N Bf2 a2 Qf4 d3 Qe4 a4 Ba7 a3 Rg3 f2 Qd4 f1N Bc5 d2 Rd3 g3 Ba7 g2 Rh3 Ne7 g8R Bd7+ Kc5 Qe8 b5 Qf7 b6 Nf2 b7 d1Q Re3 Nh3 Nf3 g1B Rd3 Ng5 Bb6 Qc2 Rb3 Ra4 Rbb1 Qcf5 Rg7 Rg8 h8Q Nh7 Rg5 Bg7 Rb4 Bh2 Qg4 Rd8 e3 Ng6 Rbb1 Bg3 Rb4 Be1 Nd4+ Ke7 Rbb1 Ba5 Nb5 Ke6 Na7 Na6+ Kd4 Nc7 b8B Ne8 Kc5 Bc8 B8c7 Rd1 Rb4 Bd7 Bb8 Ke7 Rbb1 Qe4 e6 Kf6 e7 Qee6 Rd5 Qf5 Bg3 Ke6 Bf2 Kf6 Rb4 Ke6 Rc1 a1B Qf8 Bae5 Ra1 Nc7 e8R+ Kf6 Rb8 Ne8 Qg8 Ke6 Qd4 Kf6 Rbb1 Kg5 Qb2 Kg4 Qd4+ Kf3 Qh4 Ke2 Qf6 Bc7 Re5 Kd2 Rb7 Kc3 Rb4 Qd3 Rf5+ Be5 Rg5 Nc7 Qc8 Ne8 Rb8 Bb5 Qg4 Bd7 Rbb1 Qe4 Bc7 Qd3 R8b4 Qf5 Bb6
1R2q1b1/qPK1Q1Bk/4Q3/1bQ4n/2nq3N/Pr2q1p1/p2nB1r1/3R2Qn b - - 0 1 illegal: No proof kernel
4Q3/Q4P2/K1n2bb1/1pbnp1Rq/nN1B3q/2r1Q2k/b2QBqP1/1N4b1 b - - 0 1 illegal: Other
4qbr1/P2r1QNK/1R2QB2/2Nk4/bb2N1q1/1pr5/1PnBN2p/qq2q3 b - - 0 1 illegal: No possible last move, all moves rejected
nnkr4/2q1B1B1/1P3b2/qbR2Qn1/2q3n1/2n1N1Pp/Q1pB2B1/1R2n1K1 b - - 0 1 legal: proof: a4 a5 e4 d5 f4 g5 c4 dxc4 g3 f5 Nc3 Ra6 Nce2 fxe4 f5 b5 Nf4 bxa4 h3 gxf4 Qe2 Rg6 Qd1 Rg4 hxg4 Bd7 Qc2 Be6 Qd1 Bc8 Kf2 Kd7 d4 h5 b4 e5 b5 c5 d5 f3 d6 e3+ Ke1 f2+ Ke2 a3 g5 a2 b6 h4 g6 a4 f6 a3 f7 h3 g7 e4 Qd2 c3 Rb1 a1Q Qd3 c2 Qa6 c4 Nf3 a2 Nd4 c3 Ne6 Be7 f8B Bf6 Qa7+ Qc7 Rb3 Ba6+ Rb5 Kc8 Bb2 c1N+ Kd1 e2+ Kc2 e1N+ Kd1 c2+ Kd2 Nf3+ Ke3 Nh6 g8Q Ng5 Rd5 Bb5 Nf4 Ne2 Qg6 Nc3 Bg2 f1N+ Kf2 e3+ Kg1 e2 Rc5 e1N Bc1 Ne3 Bd2 Nhg4 Bg7 Rd8 Nd5 Qd1 Qa3 a1Q Qa2 Qe2 Qh7 Qc4 Qd3 Nf5 Ne3 Nd4 Qf5+ Nde6 Qb3 Qa5 Qa2 Qc6 d7+ Kb7 Rd5 Nc7 Re5 Na8 Rc5 Re8 d8B Rf8 Qg6 Kc8 Be7 Qc7 Qf5+ Bd7 Qd3 Bb5 Kf1 Rd8 Rg1 Ne5 Kf2 N1f3 Rb1 Ne1 Kg1 Ng4 Qf5+
3kq1r1/nbRn1qqP/2r3R1/1p1qr3/1p1N4/rP1RN2K/3QQr2/5RB1 b - - 0 1 legal: proof: f4 c5 g4 h5 d4 cxd4 a3 hxg4 f5 b5 f6 exf6 Nh3 f5 Ng1 f4 a4 Bc5 a5 Bb6 Bg2 a6 Bc6 b4 Bb5 axb5 axb6 Rh3 Ra5 Rh5 Ra1 Rh8 Kf2 d5 Kg2 g5 c4 f5 h4 d3 e4 d2 c5 g3 h5 f3+ Kh3 f2 b7 f1R e5 g2 e6 g4+ Kh2 g3+ Kh3 d4 e7 d3 h6 f4+ Qg4 d1Q c6 d2 c7 f3 h7 f2 b3 Nc6 b8Q Nf6 Qb7 Rg8 Nc3 Na7 Ra5 Nd7 Qc6 Bb7 Nf3 g1Q c8R g2 Nd5 Re1 Qf6 f1Q Qb2 Re5 Nd4 Qf7 Ra6 Qe2 Ne3 d1R Rc2 Rf1 Rc7 Rf2 Rg6 Qec4 Qh5 Qcd5 Qd2 Rc8 Bb2 Qa1 Rf1 g1R Qhe2 Ra8 Rgc6 R1g6 Rc3 Rc6 Rd3 Nc8 Bc3 Ra3 Bb2 Na7 Bc3 Qc1 Ba1 Qcc4 Bc3 Qg7 Ba1 Kf7 e8R Kf6 Rf8+ Ke7 Rf6 Qe8 Rg6 Kd8 Ndf5 Qce4 Bd4 Qdf7 Bc5 Qed5 Nd4 Rg5 Bd6 Rgf5 Bh2 Re5 Bg1
1q2N1Qq/4qQ1P/1n1np2P/4Q3/1nn5/BnNk1brq/B3rpQ1/3K1R2 b - - 0 1 illegal: No proof kernel
5Rkn/K1nPp3/2N1n1B1/3n3Q/1RQrrr2/1B1pPqnr/Rq4b1/3R4 b - - 0 1 legal: proof: g4 f5 b4 g5 h4 a5 Nf3 axb4 Ng1 Bh6 Nc3 fxg4 Nb1 g3 Bb2 g4 Bc1 Bg5 hxg5 Ra4 Rh6 Ra6 Rh1 Ra8 d4 d6 Bb2 c6 d5 c5 Bd4 cxd4 c4 Qa5 c5 Qb6 c6 Be6 Nc3 Bc8 Na4 Qd8 Nc5 dxc5 Kd2 Kf8 Kd3 h5 Kc4 b5+ Kd3 g2 a4 b3 f4 g3 e3 c4+ Ke4 d3 Kd4 b2 Kc5 b1N c7 b4 Kb6 b3 g6 c3 a5 c2 f5 c1Q d6 b2 a6 h4 a7 h3 f6 h2 d7 Na6 f7 Bb7 Qg4 Nh6 Ne2 g1R Qf3 g2 Qe4 Nc3 Qd5 b1R+ Qb5 Rb4 Ra5 Qb2 Ra3 Qe8 c8B Nc7 Nd4 Rc4 Be2 Rf1 Nc6 g1N Bh5 Nf3 Ra4 Nd4 Ne5 Bg2 Bb7 Nde6 Bd5 Rff4 Rd1 h1N Nc6 Ng3 Kb7 Kg7 f8R Nf7 Ra2 Ra4 Bb3 Rh7 Qg5 Nh8 Qg4 N3d5 Qe2 Kh6 g7 Rae4 Ra4 Qg6 Ra2 Qg5 Bg6 Qh5 Rb8 Qg4 g8R Qh5 Rgf8 Kg7 Qg4 Rh6 Qh3 Qhe2 Qg4 Rh3 Qh5 Nb5 Ka6 Qf3 Rb7 Rb8 Rb6 Rb7 a8Q Rb8 Qa7 Ra8 Kb7 Nbc7 Qa4 Ra6 Qb5 Raa4 Kb8 Rad4 Ka7 Na6 Qc4 Nac7 Rf5 Kg8 Rb4 Rhh4 Rf6 Rh3 Rf8+
rn2BB2/q1pRPKnQ/1N6/q4Q2/2PQ1b1p/1q1r4/4rrQk/1q1N2q1 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 g5 a4 gxh4 Be2 a5 Bf1 axb4 f3 e5 Ba6 e3 Ke2 Bf5 Ra3 bxa3 Bd3 Be4 Ba6 Bd5 Kd3 e4+ Kc3 Bc6 Bf1 e2 Kc4 e3 Kc3 Be4 fxe4 Qc8 Kd3 Qd7+ Kc3 Qd8 Kc4 Kd7 Kd5 e1R g4 b5 d4 f5 c4 h5 a5 a2 g5 a1Q a6 h3 e5 f4 g6 f3 g7 e2 a7 f2 Nc3 h2 Qc2 h4 Nf3 b4 Rg1 h1Q Bh6 b3 Nd1 b2 Bg2 b1Q e6+ Ke7+ Ke5 f1R Qf5 Nf6 g8Q Nh5 Qgh7+ Ng7 Bh3 Qa5+ d5 Qb3 Rg4 Qg1 Rd4 Rf2 Rd2 Ke8 e7 Qc8 Kf6 Qcb7 d6 Qba6 Qg5 Rg8 Bg2 Kd7 Kf7 Kc6 d7 Qab7 Rb2 Kd6 Qgf5 Qba6 Ne5 Q6b6 Ne3 Rd1 Bd5 e1Q Bc6 Rd3 Rd2 Qeb1 Nd1 Re2 Ng4 Qbd4 Nge3 Qdc5 Nd5 Qca3 Qh3 Ke5 d8Q Qaa1 Nb6 Qad4 Be3 Qdc5 Bd4+ Kf4 Q3f5+ Kg3 Be8 Kh2 Bf6 Qcf2 Qd4 Rh8 Qhg6 Rh6 Qh7 Rg6 Bg5 Qe3 Bh6 Rgg2 Qdf6 Rgf2 Qa1 Rc3 Rd7 Rd3 Qd4 Ne6 Bg5 Bh6 Bf6 Bg5 Bg7 Bf4 Bf8 Ng7 Qb5 Qac3 Qbf5 Rg2 Qe6 Re1 Qde4 Qe5 Na4 Q5c5 Qb7 Qa5 Qef5 Rf2 Qf3 Na6 Qb7 Rd8 Qf3 Ree2 a8Q Rf1 Qae4 Ra8 Qee5 Qa7 Nb6 Nb8 Qd4 Rff2 Qg2+
4B2R/R1qqQ1p1/1bPqb3/B1rp1q2/R2r2rP/K4kR1/1nb3r1/1QN5 b - - 0 1 illegal: No possible last move, all moves rejected
1B2nR2/b4pqq/N2p1P2/b1R2qr1/k2Q4/1qNb3n/2nQ1P1K/2b1Q2Q b - - 0 1 illegal: No possible last move
N3Nr2/2r1NpPN/2b1R1Rb/Pq1Q4/2qn1bK1/1rp2B2/3qr3/4q1kQ b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 b4 a5 h5 axb4 Bb2 Nd7 Bf6 Ne5 f4 gxf4 g5 Ng6 hxg6 f3 Qb3 exf6 Kd1 f2 Kc1 f5 Qd1 f4 e4 Kd7 a4 Kc6 d4 b5 Kd2 h5 Ke2 b3 Kf3 b4 d5+ Kc5 g7 b2 a5 b3 g6 c3 e5 c2 d6 c1B d7 h4 e6 h3 e7 h2 e8N Ne7 g8N Ra7 Ne2 Bb7+ Kg4 f3 Ng3 Nc6 Ngf6 Nd4 Bh3 f1R Ra2 f2 Ne2 Re1 Nd5 f1Q Nd2 b1Q Nc4 b2 Qa4 Bf4 Ned6 B8h6 g7 Rf8 Ne8 Bc6 Ng3 Re2 Rg1 h1Q Nf5 Qc2 Nfe7 b1R Ra3 Rb3 Ncb6 Qc4 Na8 Qe1 Ndf6 Qhd5 Ra2 Qb5 Rb2 Qdc4 Nh7 Rb7 Qa1 Ra7 Nc8 Kd5 Ra2 Ke4 Ne7 Ke3 Bg2 Kf2 Bf3 Rb7 Kh4 Ra7 Rg6 Kf1+ Kg4 Kg1 Nef6 Bb7 Rd2 c5 Ne8 Bc6 Rd3 Rc7 Re3 Qd5 Ree6 c4 Qd1 c3 Qa1 Qc8 d8Q Qdc4 Qc1 Qd3 Qd5 Qd2 Qb1 Qca6 Qbf5 Qc4 Qh5 Qab5 Qh1+
3n1k1Q/2n1b1bP/1K6/NNrbQ1P1/1B2b1pR/4n2p/B1r2rBr/2r2B2 b - - 0 1 illegal: No possible last move
N2nn1Q1/1P3rPp/2p4R/2n1rQb1/3Qb1bR/8/nQN1n1Bn/1bk4K b - - 0 1 legal: proof: g4 d5 c4 dxc4 h4 e5 a4 b5 b3 bxa4 h5 e4 g5 e3 Bb2 Qd3 Bf6 Qg6 hxg6 gxf6 Qc2 exf2+ Kd1 f5 Kc1 f4 Qd1 Be6 Bh3 Bf5 Bf1 Bc8 d4 Ke7 Kd2 Ke6 e4 a5 Ke2 f5 Kf3 c3 Kg2 c2 b4 c1N d5+ Ke5 g7 f3+ Kh2 Kf4 b5 Ke3 e5 f4 b6 a3 d6 a4 g6 a2 b7 a3 d7 Nf6 g8Q Ne2 d8Q Ne8 e6 Bh6 g7 Nc6 e7 Ra5 Nd2 Bg5 Qdd5 Bg4 Rb1 a1N Rb4 a2 Qde6+ Re5 Qe1 Nc2 Qd1 a1N Qd5 Nd8 Qc1 c6 Qf8 Nb3 Qd1 Nc5 Qf6 Rf8 Ra4 Rf7 Rc4 Nb4 Bg2 f1B Qc1 f2 Ngf3 Na2 Nd4 f3 Qb2 Kd3 Ra4 Ke3 Nc4+ Kd3 Nb6 Ke3 Bh3 Bg2 Na8 f1B Qf5 f2 Rc4 Be4 Bg2 Kd3 Rb4 Ke3 Qc4 Bb1 Nc2+ Kd2 Ra4 Nec1 Rb4 Bd3 Qcd4 f1N+ Kg1 Kd1 Rh6 Nh2 Kh1 Ne2 Rc4 Nf6 e8Q Kd2 Qg8 Ne8 Qb6 Kc1 Qdb2+ Kd2 Rf4 Be4 Qd4+ Kc1 Qb5 Bgf3 Rfh4 Bg4 Qbb2#
1rRrN3/n1Q2N1K/1Q5n/1PPBN3/1rnp4/qb2p3/p6q/1Rb1bkN1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 gxf4 e4 c5 g5 cxd4 g6 h6 Be3 Qc7 axb5 fxe4 Bf2 Qb6 Bh4 Qd8 Bg5 hxg5 Kd2 e5 b4 Ke7 h4 Kd6 c4 a5 b6 a4 h5 g4 g7 d3 c5+ Kd5 b7 Kd4 b5 d5 h6 a3 h7 f3 Qe2 g3 Qf2+ e3+ Ke1 d2+ Kd1 e4 Kc2 d1N Rh6 a2 Bg2 Nb2 Bf1 g2 Rh1 Nc6 b8N Nc4 Qg3 e2 Nd2 Ke3 Na6 e1B Rh6 d4 Rb1 Rb8 Qc7 f2 Ndf3 Na7 Rc6 Be6 Ne5 Nh6 g8Q Bf7 Bd3 f1R Qg6 Kf2 Be2 Qg5 Bf3 Qe3 Qgd6 Rg8 h8N Qa3 Qf6 Bd5 Nhf7 Bg7 Qfd6 Rgd8 Qb6 Bf6 Nc7 Bg5 Ne8 Bc1 Rc8 e3 Qdc7 Be6 Ne2 g1Q Bd5 Qh2 Ng1 Qb4 Kd3 Qa3+ Ke4 Kg2 Nh8 Rf2 Nhf7 Rb2 Bb7 Kf1 Bd5 Qh3 Kf4 Rb4 Kg5 Qh2 Kg6 Nd2 Bh1 Bb3 Bd5 Nc4 Kh7
1r1nb2k/r2B4/1q1N2pn/2qB1pnb/B1PR4/1rP2QBp/KQ5q/4N3 b - - 0 1 illegal: No proof kernel
R7/b2p1K1b/1p2N2p/2N1P1RP/1b1q2rQ/2qBn1Rn/1kQ3nR/2rr4 b - - 0 1 legal: proof: d4 c5 b4 cxb4 a4 e5 g4 exd4 a5 f5 a6 fxg4 Bf4 Nh6 Bc7 Ng8 Bb6 axb6 axb7 Be7 Bg2 Bc5 Bf1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 g5 Kd5 h6 f4 b3 c4 b2 e4 d3 h4 g3 h5 d2 c5 g2 c6 g4 c7 g3 f5 Nc6 b8Q Nb4+ Kc4 Ke5 f6 Ne7 f7 Ned5 Rh3 Bb7 c8R+ Qc7+ Kb5 Kd4 Qf3 d1R Qa3 Nf4 Nd2 b1Q Ra2 Ra4 Bd3 Qa1 Nb3+ Kc3 Nf3 g1B Rah2 g2 Nfd4 Nbd5 Rg3 Ne3 Ne6 Bb4 f8R Rg8 Rf6 Rg4 Rg6 Ra6 Qa5 Kb2 Rg5 Qc3 Nbc5 Bf2 Rh8 g1N Qa4 Nfg2 Qf4 Nh3 Ra8 Bd5 Qf6 Ba2 Qe7 Bb1 Qf6 Ra7 e5 Rc7 Ka6 Rc8 Kb7 Qd4 Ne4 Rcc1 N4c5 Qa3 Kc8 Qac3 Kd8 Bg1 Ba6 Bh7 Ke8 Bf2 Bd3 Be1 Na6 Bd6 Nac5 Bb8 Kf7 Ba7 Qe7 Qb3 Qd8 Bb4 Qf6 Re4 Qf4 Qbc3 Qh4 Rg4 Qc2+
8/1b1KBbn1/B1Q3pb/Bb3nk1/1Qp2qP1/r2bP1r1/3NR1p1/3Rr1B1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 h5 b4 a5 Nc3 axb4 Ne4 h4 Ng3 hxg3 h4 Ke7 d4 Kf6 Kd2 c5 h5 f3 Ke3 f2 Kf4 c3 e3 g2 d5 g6 d6 c2 h6 b3 h7 b2 b6 b1B d7 Ne7 b7 Nbc6 b8B Bb7 Qe1 Ba2 Ba7 Qc7+ Ke4 Nf5 d8Q+ Nce7+ Qd5 Bh6 Bd3 f1B Qc6+ Kg5 Ba3 c1R Bb8 Ng7 Qb4 Nef5 Ba6 Re1 Rd1 Bb5 Rd2 Rf8 h8B f6 Rb2 Bf7 Re2 Qd6 Bc7 c4 Bd8 Ne6 Bc7 Qf4+ Kd5 Neg7+ Kc5 Rad8 Ba5 Rd3 Bb2 Ra3 Be5 Rf1 Bb8 Rf3 Bd6 Rg3 Be7 Rd8 Kb6 Rd6 Kc7 Rd1+ Bd6 Re1 Kd7 Nh4 Bf8 f5 Bd6 Qe4 Bdc7 f4 Bd6 Nhf5 Nf3+ Kf6 Nd2 f3 Bc5+ Kg5 Rf1 Qe5 Be7+ Qf6 Rh1 f2 Rg1 Ne6 Bg7 f1B Bgf8 Neg7 Bd6 Rf3 Bh2 Rh3 Be7 Rg3 Rf2 Bd3 Rgf1 Re2 Rd1 Re1 Re2 Bg8 Bf8 Bf7 Bg1 Qd4+ Bd6 Qf4 Be7+
K1nN3n/R4p2/rB2q3/3nbRQN/p4RRb/nk2P2Q/1pP5/r4n1r b - - 0 1 illegal: Other
1r3QN1/1Qb1p1B1/3rP2P/p1nq3p/4r2Q/3R1K1Q/NbBk1b1b/n1b5 b - - 0 1 legal: proof: g4 d5 a4 b5 c4 bxa4 g5 dxc4 f3 Bg4 fxg4 h5 h3 hxg4 h4 g6 b4 Qd5 h5 Qe5 h6 Qd4 Ra3 Qd6 Rah3 Qd8 Rh5 gxh5 Kf2 Kd7 d4 Kd6 e4 a5 g6 f5 b5 c5 e5+ Kd5 e6 Ke4 g7 g3+ Kg2 f4 b6 a3 d5 a2 d6 a1B d7 f3+ Kh3 f2 Kg2 c3 b7 c2 Nh3 c4 Rg1 c3 Be3 c1B Qd2 c2 Bf4 Nc6 b8Q Bcb2 Bd6 c1B Qg5 Nf6 g8Q Ra6 Bc4 f1R Na3 Nd4 Nc2 Bg7 Nb4 Nc2 Be5 Rd6 Qf8 Re1 Nf4 Ke3 Bd3 Ne4 Qb7 Nc5 Na2 Kd2 Kf3 g2 Qh4 Re4 Nd5 Qa8 Rf1 g1B d8Q Bh2 Nf6 Bd4 Qdb8 Bab2 Ng8 Na1 Bc2 Bf2 Rg1 Bf6 Rg3 Bg5 Qb3 Qd5 Bg7 Bf4 Q3b7 Rb6 Qf5 Bc7 Qfh3 Rc6 Nf6 Rd8 Ng8 Rdd6 Qf8 Rb6 Qc6 Rb8 Qa6 Be1 Qb7 Bf2 Kg2 Na6 Rb3 Nc5 Kf3 Bhe5 Ra3 Bh2 Rd3+
N3R1r1/NQ4R1/4rq1b/1r1QB1rp/p1N5/qb1P4/P1Np1b2/1K1nkn2 b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 c5 bxc5 g5 Qg4 gxh4 Qf3 Na6 Qd1 Nb8 c4 d5 c6 Qc7 c5 Qb6 Bc4 Qd8 d3 dxc4 Qd2 c3 Kf1 cxd2 Ke2 Kf7 Kd1 Kf6 Kc2 Kf5 g4+ Kf4 g5 a5 c7 e5 c6 h5 f3 Ke3 f4 Kf2 f5 b5 f6 h3 g6 b4 f7 h2 g7 e3 Nf3 a4 Ne1 b3+ Kb2 e4 Nc2 e2 Ne1 e3 Rg1 h1Q Na3 Ne7 g8Q Na6 Ng2 e1R Nc2 e2 Qg7 Nb4 Qf6+ Nf5 Nd4 Nd5 Qe7 Nfe3 Kb1 b2 Qe4 Qf6 Nc2 Bh6 f8N Ra5 Ne6 Nd1 Nge3 Rg8 Nc4 N5e3 Qd5 Nf1 Rg7 Bb7 c8N Qhh4 Qe4 Rg5 c7 Bd5 Na7 Qc3 c8Q Qa3 Qe5 Qf4 Nc7 Qf6 Na8 Bf7 Qd5 Be6 Nd4 Bf7 Kc2 b1R Qcb7 Rb5 Bb2 Be6 Kb1 Bf7 Nc2 Be6 Na5 Bf7 Qe5 Bb3 Qed5 Nde3+ Bc1 Rd1 Nc4 e1B Ne5 Qc5 Kb2 Ke2 Rb1 Qa3+ Ka1 Bh4 Bb2 Re1 Nc4 Kf2 Rd1 Re2 Re1 Nd1 Kb1 Ree8 Re5 Bg3 N2e3 Ke1 Ree7 Bf2 Be5 Rd8 Re6 Rd6 Re8 Re6 Nc2+
n1Bn3q/1b3q2/Q1r1R2P/1r4n1/2pB1k1b/2P2p2/1B1nNNpK/Q2B1b2 b - - 0 1 legal: proof: b4 d5 g4 g5 e4 dxe4 f4 exf3 Qe2 h5 Kd1 f2 Qf3 Qd4 Qf4 Qd8 a4 b5 axb5 gxf4 g5 Bh3 Ra3 Bc8 Rg3 f3 Rg4 hxg4 d4 Kd7 h4 Kd6 g6 a5 g7 c5 h5 f5 h6 e5 d5 c4 b6 g3 c3 f4 b7 e4 b5 Ke5 d6 g2 d7 e3 b6 a4 Nd2 e2+ Kc2 e1N+ Kd1 a3 Be2 f1Q Nb3 a2 Nd2 a1N Bb2 f2 Ne4 Ne7 g8B Ra5 Be6 Na6 b8B+ Nc7 b7 Rb5 Ba7 Nc6 b8Q Nb3 Qb7 Nd2 Qa6 Bb7 B6g4 Qf6 d8Q Be7 Qa8 Nd8 Bc8 Qf8 Bh5 Bh4 Ne2 Rh7 Rh3 Qh8 Re3 Rd7 Qa1 Rd6 Bf3 Re6 Bd4+ Kf5 Q8a6 Na8 Nf6 Kg5 Ng4 Rc6 Re8 Qh1 Re3 f1B Nf2 Qh3 Re5+ Qf5 Re6 Qf7 Bg4 Nef3 Bh5 Ng1 Ke1 Kf5 Bg6+ Kg5 Bc2 f3 Bd1 Kf5 Q6a2 Nh3 Qa6 Be7 Ne4 Ng5 Kf2 Bf6 Kg1 Kg4 Nf2+ Kf5 Nc1 Kf4 Kh2 Nh7 Re2 Bh4 Re6 Ng5 Ne2+
Q1rrN2N/n2Q4/BK3pn1/3Q4/1bb2Qp1/1P1pPR2/1kR4n/1r3qqn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Be3 e5 Bf2 exf4 Bg3 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 h4 a5 c3 d5+ Kd3 g5 c4 a4 c5 f6 h5 a3 b6 a2 b7 g2 b3 g3 c6 g4 h6 Bb4 h7 Ne7 c7 Ng6 Qc1 Be6 c8Q Nc6 Qd1 Na7 Qd7 Rc8 Nh3 g1Q Na3 g2 Rc1 a1R Rc2 Rb1 b8Q+ Qc7 Ng5 Rhd8 h8Q Qd6 Rc7 Qa6+ Nb5 Qa1 Nd6 Bg8 Rc3 Bf7 Kd2 d3 Rh3 d4 Rf3 Bc4 Ngf7+ Kd5 Ne8+ Kc5 e3 Qa6 Qc1 Qa1 Kd1 d2 Kc2 d1N Qf4 Nf2 Qd1 Nh1 Bd3 Qf1 Qg8 g1N Nh8 Ba5 Qgd5+ Kb4 Qa8 Ka3 Qd2 Bb4 Qd1 Bd5 Ba6 Bg8 Qd3 Bc4 Q3f5 d3+ Kd2 Ne2 Qdd5 Neg3 Qfd7 Bf8 Rc2 Qg1 Rb2 Nf1+ Kc3 Nh2 Kd4 Qf1 Qfe4 Bb4 Qf4 Qa2 Rc2 Qg1 Rc1 Qag2 Rc2 Q2f1 Nc7 Bc3+ Kc5 Bd2 Kb6 Bb4 Rc1 Ka2 Ne8 Kb2 Rc2+
n1R1q3/KbB3R1/R3pbN1/1q6/3p1nr1/1Pn1n1p1/QRrP3k/b1N1Q3 b - - 0 1 legal: proof: Nf3 b5 Ng1 c5 Nf3 b4 Ng1 b3 axb3 Qc7 Ra6 Qb6 Ra1 Qd8 e4 f5 Nf3 c4 Ng1 c3 Bb5 cxb2 Ba6 Bb7 Bf1 Bc8 f4 fxe4 g4 g5 Bh3 gxf4 g5 h5 Bg4 hxg4 Ke2 Kf7 h4 Kg6 c4 Kf5 g6 d5 g7 a5 c5 d4 h5 f3+ Kf2 Kf4 c6 e3+ Ke1 Kg3 h6 f2+ Ke2 f1N Kd3 a4 Kc4 e6 Kb5 a3 c7 e2 Kb6 e1Q h7 a2 Qe2 Bb7 Rh4 Ne3 Nf3 Qf1 Ne5 Na6 Ng6 Rc8 Rh1 Ne7 g8R Bg7 Ka7 Bf6 Rg7 Rg8 h8Q N7d5 Nc3 b1N Ba3 Qe8 Bd6+ Nf4 Qe1+ Kg2 Qh5 g3 Ne2 Nc3 Nc1 Qfb5 Rb1 a1B Rb2 Qa4 Qa5 Qab5 Rf1 Kh2 Qa3 Rh8 Qa2 Rh4 Rg1 Rg4 Rf1 Nb8 Be5 Nd7 Rg1 Nb6 Rf1 Rd8 c8R Na8 Bb8 Rd5 Bc7 Rc5 Rg1 Nb1 Rf1 Rc2 Rg1 Nc3 Rf1 Nfe2 Rf5 Nf4 Re5 Qe2 Ra5 Q2b5 Ra6
1Kn1n1N1/5Q2/3Pq1q1/1RRBNP1r/1pbpQ1pb/3n4/2k3r1/3QQ1nq b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g3 axb4 g4 hxg4 c4 d6 c5 dxc5 d4 Nf6 d5 Ng8 Be3 Ra7 Bd4 cxd4 Bc4 Ra3 Bf1 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 h4 e5 a4 c5 f4 g5 a5 b3 f6 b2 f5 c4 f7 g3 a6 c3 a7 g2 d6 c2 h5 c1N h6 g4 h7 Qg5 Kb6 Be7 Kc7 b5 f8Q b4 Na3 b1Q Rh5 Qg6 Ra2 Nd7 Nc4 Ndf6 Qf7 Be6 Ne3 Bc4 Nf3 g1N Rh3 Nd3 Ra5 Ne8+ Kb7 Bg5 Nd5 Ne7 Bg2 Bh4 Rb5 Nc8 Ne7 Ke3 Rh1 e4 Ne5 Qc1 Ng8 Qa1 Qf1 Kd2 Qe1+ Kc2 Rh3 e3 Bd5 e2 Rh1 Nb6 Rh2 Rc8 a8Q Rc7+ Kb8 Nc8 Qc6 Ra7 Rh3 Ra2 Re3 Nb2 Ra3 Nd3 Raa5 Qc1 Rc5 Qch6 Rab5 Qhh5 Qg3 e1Q Qa8 Qe4 Qe1 Rb2 Qaa1 Qh1 Qe4 Qe6 Qae1 Qhg6 Nf6 Rf8 h8Q Ra2 Qh6 Rh8 Ng8 Rh7 Qhe3 Rh5 Q1e2+ Kc3 Qf1 Rg2 Qee1+ Kb2 Qff3 Kc2 Qfd1+
b1r1kNQ1/3BN3/P1qn2p1/2pb2p1/1rQ1P3/2qBRrbN/1N4n1/1K4b1 b - - 0 1 legal: proof: e4 e5 c4 d5 g4 f5 a4 h6 g5 hxg5 d4 f4 Be3 fxe3 Ra3 Bd7 b4 Bc8 Rd3 dxc4 d5 a5 Rd4 exd4 bxa5 Rh5 Be2 Rh6 Bf1 Rh8 h4 b5 f4 g6 a6 e2 Kd2 e1B+ Kc1 c3 a7 c2 h5 d3 d6 d2+ Kb2 c1Q+ Ka2 b4 h6 b3+ Ka1 Nf6 h7 Nbd7 a5 Nd5 a6 Ne3 f5 Nc5 f6 Qd7 Bd3 Qc6 Qc2 d1B Rh3 Bb7 Qc4 Rc8 a8B Ng2 Re3 Bg3 Nh3 b2+ Ka2 Be2 Nc3 b1R Na4 Rb4 Nb2 Qc3 Kb1 Rg8 h8Q Rg7 Qb5 Rf7 Qg8 Bd1 Qa4 Bb3 Qa2 Bd5 Qb3 Nd7 Qc4 Nb6 d7+ Kd8 Qg7 Bc5 Qg8+ Rf8 f7 Ke7 Re1 Bg1 d8N Kd7 Re3 Ke7 Qa2 Nc4 Qb3 Nd6 Qc4 Qb6 Nc6+ Kd7 Ne7 c5 Qa2 Qc6 Qb3 Rfd8 f8N+ Ke8 Qc4 Rd7 Nf5 Rf7 Ne7 Rf3 Be2 Qc7 Bf1 Bbc6 Bb7 Rb8 Bc8 Ba8 Bg4 Rc8 Bd3 Qc6 Bd7+
1n3bBr/N2P2p1/bB3B2/Q3P2r/1q2rqp1/4B2p/R1rn1q2/2QK2Rk b - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 f5 d4 fxg4 h4 e5 Nc3 Qd6 d5 Qh6 Nb5 Qxh4 Nd4 b5 axb5 exd4 Qa4 Qh3 Qd1 Qh2 f4 Kd7 e4 Kd6 b4 c5 f5 Ke5 f6 a5 b6 h5 b5 d3 f7 h4 b7 h3 d6 c3 b6 a4 d7 c2 Bh6 c1Q Ra2 c4 Be3 a3 Bf2 Kf4 e5 c3 Bh4 c2 Bd8 Kg3 Be2 Kg2 Bf6 Rh5 Nf3 Qcf4 Nd4 c1R Nb5 Rc2 Qc1 d2+ Kd1 Qhg3 Na7 Qgf2 Rg1+ Kh2 Be7 Nf6 Bc4 Ne4 Bc5 Q2g3 Be3 Qgf2 Ra1 a2 Bb3 Nc6 b8Q Ba6 Qc7 Re8 b7 Nb8 Qa5 Rd8 Rb1 a1Q Rb2 Qa4 Ra2 Qb4 Bb6 Be7 Bd5 Rdh8 f8B Bd6 Bg8 Bc5 Rg3 Kh1 Be7 Bd6 Bed8 Bf8 Bf6 Rc4 Be3 Rd4 Kc2+ d1R+ Bd2 Nc6 b8B Re1 Bd6 Nb8 Bc5 Rd5 Bb6 Rd6 Qa1 Rc6+ Qc3 Re2 Kd1 Rc8 Qc1 Rc2 Bc3 Re3 Bcd4 Nd2 Rg2 Re4 Be3 Qb1 Rg3 Qb4 Rg1+
2Q1B1B1/2Pb1P1q/2n1B3/1r1rk3/q1N5/pRb1pp1n/2N2qBq/1K1Q2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 d4 c5 a4 bxa4 f5 cxd4 e4 f6 b4 Bd6 Bf4 Bf8 Ra3 Bd6 Re3 exf4 e5 Be7 e6 Bf8 Re5 fxe5 Kd2 Ke7 Kc1 Kd6 g4 h5 c4 a5 g6 e4 e7 e3 e8B f3 c5+ Ke5 g5 d5 c6 a3 f6 d3 g7 a4 c7 a2 b5 a1R f7 d2+ Kc2 a3 b6 d4 b7 h4 g6 h3 Bg2 d3+ Kb3 h2 Bf1 Qh4 Nh3 Nc6 b8Q Qf2 Qb4 Rh5 Nf4 Rb8 Ne2 Nf6 g8B Ne4 g7 Bd7 Rg1 h1Q Nd4 Rb5 Bg2 Ng5 Bh7 Qh2 g8B Bg7 Bf5 Nh3 Nc2 Rd5 Qb7 Bf6 Qf1 d1Q Be6 d2 Qc8 Qc1 Kc3 d1Q Nd2 Qb1 Qe2 Qdf1 Qd1 Qfb5 Rf1 Qa4 Nc4+ Kf4+ Nd4 Qh7 Re1 Rb1 Re2 Rbb5 Rb2 Rhg5 Rb3 Rg7 Qe2 Ke4 Kc2 Rg3 Kc1 Rg6 Nc2 Bc3 Kb1 Rg3 Bf1 Rg1 Qd1 Kf4 Bg2 Ke4 Nd6+ Ke5 Nc4+
3Qq3/2pbq3/RQ1r1QR1/6n1/4Pp2/2BknPpQ/B1r4n/rrb1K1N1 b - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 e5 d4 exd4 h3 b5 Nd2 g6 Ne4 g5 h4 gxh4 Ng3 hxg3 axb5 Qe7 Be3 Qd6 Bc1 Qd8 e4 Kd7 b4 Kd6 g5 Ke5 b6 f5 f3 h5 b5 a5 g6 c3 b7 h4 b6 f4 g7 c2 Nh3 a4 Rg1 a3 Qd3 a2 Be3 c1R+ Kd2 Na6 b8Q Rb1 b7 Rh6 Bf2 Nc5 Ke2 Nf6 g8Q Ng4 Qb5 d3+ Kd2 Bd7 Qbc4 Rd6 Qc8 Qe8 b8Q Ne6 Qa4 Ng5 Bc5 Nh2 Bb4 Kd4 Qg6 Raa6 Qh6 Rac6 Qd1 Rc2+ Ke1 Bg7 Rh1 d2+ Ke2 Qe7 Ng1 h3 Qb6+ Kc4 Qg6 Bb2 Bc3 Bc1 Qf6 Qe8 Qcd8 Qe7 Qe1 d1N+ Qd2 Ne3 Ke1+ Rd3 Be2 Qe8 Bd1 Rd6 Qf2 Kd3 Qg2 Rd2 Bb3 Rc2 Be6 Rb3 Rb1 a1R Rb2 Rb5 Ra2 Rbb1 Bb3 Nhg4 Ra6 h2 Qh3 Qe7 Ne2 Qe8 Ba2 Qe7 Rg1 h1Q Rf1 Qh2 Rh1 Qe8 Ng1 Qe7 Qg2 Qh8 Rh6 Nh2 Qh3 Qhe8 Rg6
Q1r2R2/2P2ppr/B1QbB2b/2r1bP1Q/2N1qpK1/3R1r2/kn5b/2n3Q1 b - - 0 1 legal: proof: d4 e5 d5 c5 Bf4 b6 Be3 Ba6 Bd4 Bd3 Qd2 Bf5 Qd1 Be6 dxe6 Qe7 Qd3 Qh4 Qd1 Qd8 f4 cxd4 a4 h5 g4 hxg4 f5 b5 Nc3 bxa4 Nd5 Rh6 Nf4 exf4 Qd2 Rh5 Qd1 Rh8 Kf2 Ke7 b4 Kd6 h4 Kd5 e7 Kc4 e8Q a5 e4+ d3 h5 d5 c3 g3+ Kf3 g2 b5 d4 b6 a3 b7 a2 h6 a4 e5 a3 h7 Bd6 e6 Na6 b8Q Nb4 e7 Nh6 Rh5 Ng4 Rc1 a1B Rh2 a2 Rb1 Ne3 Nh3 g1B Rc2 Bh2 Qb6 Rc8 Bg2 d2 Qg1 d1R Rb3 d3 Ng5 d2 Bf1+ Nd3 Ne4 Rc1 Qg8 d1R e8B Qf6 Bd7 Qe5 Be6+ Qd5 Qgd8 Rd2 Qdg5 Nd1 Kg4 Rf2 Qh5 Rf3 Qb7 Rc5 Qc6 Nb2 Ra3 Rc8 h8Q Re1 Ra8 Kb3 c4 Nc1 Rd2 Ree3 Rd4 Rh3 Qd8 Ref3 Rb8+ Ka3 Nd2 Qe4 Qg8 Be7 Rd6 Bg5 Be2 Bh6 Rd8 Na4 Rd3+ Bc3 Qd8 a1B Qa5 Bb2 Qaa8 Ka2 Bf1 Be5 Be2 Rc7 Rf8 Bd6 Bf1 Rc8 Be2 Rd5 c5 Bbe5 Nc4 Rf2 Qcb7 Rff3 c6 Ra5 c7 Rc5 Qab8 Nb2 Qc6 Bg5 Qg6 Rh8 Qh5 Bh6 Qba8+ Ra5 Bd1 Rh7 Ba4 Rc5 Bb5+ Kb1 Ba6 Ka1 Qg3 Ka2 Qg1
KN2Q2q/1pqrNq2/5Q2/Qb1kr2R/2pn1n1B/1P1qp2Q/1P1R3n/3q4 b - - 0 1 illegal: Other
rn1QK1b1/R2rN1p1/1qR2NnP/B4N2/1qNQppP1/5rq1/n7/5nk1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 h5 b5 e5 g3 h4 b6 h3 Bg2 hxg2 e3 axb6 Qf3 b5 Qh5 b4 Qd1 Bd6 Kf2 e4 Ke1 Be5 fxe5 dxe3 Ke2 Ke7 c4 Ke6 a4 Kf5 h4 Kg4 h5 b5 h6 f5 a5 d5 e6 d4 e7 d3+ Ke1+ e2 Kf2 b3 Ke3 b2 e8N d2 c5 b4 c6 b3 c7 Ne7 a6 Ra7 Nh3 Rf8 Nd6 Be6 Kd4 Kf3 Kc5 g1Q+ Nf2 Kg2 c8N e1Q Na3 Ng6 Ne7 b1N Ra2 Qh2 Ng4 b2 Qa4 d1R Bd2 Nc3 Rf1 Ra8 a7 b1N Rf3 Bg8 Rf4 Nd7+ Kc6 Rb8 a8Q Kg1 Rf3 f4 Nf6 Rb3 g4 Qhg3 Ndf5 Qa5 Rc2 Na2 Kd6 Qa6+ Rc6 Qb6 Qc4 Rb8 Qd3 Rf8 Nc4 Rd8 Bb4 Nd2 Qb8 Nf1 Rf2 Nc1 Ra2 Re8 Ra6 Na2 Ra7 Rd2 Qc7 Ra8 Qd8 Nb8 Ba5 Qb1 Qd5 Rf3 Qd3 Qc5+ Kc7 Qcb6+ Kc8 Q1b4 Q3d6 Na6+ Kd7 Nb8+ Ke8 Rdd3 Qe5 Rd7 Qd4+
1qQ2bQb/P3B1r1/5PqN/p1rqnp1k/B1p2r2/4B3/qR6/3BKb1N b - - 0 1 illegal: No proof kernel
2qB1R1N/PP1bp3/2N1rRn1/1bp1b2q/N4bnq/5p2/K1N1k1Qn/Q7 b - - 0 1 legal: proof: g4 d5 f4 b5 e4 dxe4 b4 g5 c4 a6 h4 gxh4 g5 Ra7 f5 Rb7 Bd3 Rb6 Bc2 Rg6 fxg6 Bd7 Ba4 bxc4 b5 Bc8 b6+ Nc6 Bb5 axb5 Qg4 Nb8 Qe2 Bf5 Qd1 Bc8 a4 Kd7 d4 Kc6 Kd2 Kd5 Kc3 c5 Kb2 h5 b7 f5 g7 c3+ Ka3 Kc4 a5 c2 g6 b4+ Ka2 b3+ Kb2 f4 a6 e3 a7 h3 d5 e2 d6 e1N d7 h4 Ra6 h2 Nc3 h3 Be3 c1B+ Kb1 b2 Qc2 Rh6 Rf6 Nc6 Qa4+ Kd3 Nf3 Ne5 Nh4 N1f3 Rf1 h1Q Qa2 h2 Na4 Ke2 Bd2 Qe8 d8N Bd7 Nc6 Qc8 Ba5 Be3 Rf7 Nf6 g8Q Nfg4 g7 Re6 Bd8 Ng6 Qa1 Bd2 Ka2 b1B+ Ka3 Be3 Ng2 Bd3 Rf6 Bb5 Ne1 Bd4 Nc2 Be5 Rb1 Qd1 Ka2 h1Q Rb3 Nfh2 Rf3 Qhe1 Rf1 Qh4 Rf3 Rd6 Qd5 Re6 g8N Qh1 Nh6 Qh5 Nf7 Bh6 Nh8 Qe1 Rh3 Qeh4 Qdh1 f3 Qg2+ Nf2 Rg3 Bhf4 Rg5 Bg3 Rgf5 Bgf4 Qg3 Nfg4 Rf8 Nf1 R5f6 Nfh2 Qg2+
Nb1R1q2/3K3b/rp4BQ/Q3ppQ1/Nb1b4/3nPb2/B1kn2P1/1b1n2Q1 b - - 0 1 illegal: No proof kernel
1b1nr2N/5rkp/2p2n2/2nQ4/1Q5P/1Nrbb3/N1pP1nn1/RNRB2K1 b - - 0 1 legal: proof: e4 a5 f4 d5 b4 axb4 c3 bxc3 Bd3 dxe4 Bf1 e3 f5 e5 Bb2 g5 Ba3 e4 Bd6 Qd7 Bf4 Qe6 fxe6 gxf4 g4 b5 a4 f5 h4 e2 Kf2 e1B+ Kg2 b4 e7 Kf7 e8N e3 a5 b3 g5 c2 a6 f3+ Kh2 e2 a7 f4 Ra4 b2 Rd4 f2 Qc1 f3 Rb4 Nc6 Rb5 Nf6 Ra5 Bf5 Rb5 Bd6+ Re5 Nd8 Ng7 Re8 Ne6 Rc8 a8Q Bd3 Nd4 Kg7 g6 Bc5 Bg2 f1R Qd5 f2 Nb3 Bd4 Bf3 Be3 Nc3 b1N Na2 Nc3 Qa3 Na4 Qb4 Nc5 Re6 Ra8 Ra6 c6 Kg2 Ra7 Ra4 Rf7 Kh2 Kh6 g7 Kg6 g8N Kg7 Nh3 Rg1 Nf4 Rg3 Ne7 Rh3+ Kg2 f1N Neg6 Nh2 Nh8 Bg3 Rc1 e1N+ Kh1 Ng2 Ne2 Bc7 Nec3 Bb8 Bd1 Rg3 Ra6 Nhg4 Nb1 Nf2+ Kg1 Rf3 Nac3 Rf4 Ra1 Rc4 Na2 Rc3 Qb6 Re4 Qb5 Re8 Qb4
BNb2rb1/Q2bB3/2r3pK/1k1B4/r3PR2/2N1bp1Q/P1r2p1r/q4nB1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Nd2 d5 Nb1 d4 Nd2 h5 Bb2 Nc6 Ba3 Nce7 Bc1 Nf5 gxf5 Qf6 Kf2 Qg5 Ke1 Qd8 Rb1 Qb6 Rb3 Qc7 Ra3 Qd8 Ra6 Qa5 Rg6 Qd8 Rg4 hxg4 Kf2 d5 e4 Kd7 c4 Kc6 h4 b5 f6 d3 f7 g3+ Ke1 d4 h5 g2 Kf2 g6 h6 b3 h7 b4 c5 b2 Nh3 g1R Qc2 b1R Bg2 b3 Rh2 b2 Nc4 d2 Nb6 d1B Qc4 d3 Bf1 d2 Nd7 Ne7 Qd4 Nf5 Bc4 Ne3 Bd5+ Kb5 c6 Rh1 c7 Ba4 Ng1 d1B Ne2 Bc5 f8B Nf1 Nb8 Bdb3 Be7 Rf8 Be3 Rc1 h8Q b1R Rh4 Rb2 Rg4 Ra6 Qh3 Rbc2 Ba8 Bg8 Rh4 Ba3 Qa7 Qd4 Rg4 Qa1 Bd5 Bb7 c8B Bc5 Bce6 Bc8 Ba8 Rc6 Bd5 Rh2+ Kg1 Kb4 Nc3 Ra6 Bf2 Bad7 Bd4 Ra4 Be3 Rhg2+ Kh1 Rge2 Bg1 Rg2 Rh4 f2 Rg4 f3 Rf4 Rg5 Rg4 Rh5 Rf4 Ne3 Kh2 Rh8 Nb1 Kb5 Kg3 Rh4 Qf5 Rh2 Qh3 Nf1+ Kh4 Bd4 Kg5 Be3 Kh6 Rc6 Bb3 R1c5 Bd5 Rc2 Nc3+
8/kr1qnb2/1Q1p4/1br2bN1/PBp4K/2NPpr2/rQ4bb/BN2RN2 b - - 0 1 legal: proof: f4 a5 b4 b5 c4 h5 a4 f5 g4 g6 e4 fxe4 f5 g5 Be2 Na6 Ra3 Nc5 Rf3 Nb7 Rf4 gxf4 g5 Nc5 Bg4 hxg4 Qf3 Nb3 Qe2 Nd4 Qf1 axb4 Qe2 b3 Qf3 b4 Qd1 Nb5 cxb5 Ra5 Qc2 Ra7 Qd1 Ra8 Kf2 e5 h4 c5 f6 e3+ Kg2 b2 h5 e4 b6 g3 Kh3 c4 g6 e2 b7 e1R b8Q f3 g7 g2 h6 b3 h7 e3 Qc7 f2 Qe5+ Ne7 g8N f1B Qc5 Rb8 Qc7 Re2 Nh6 Ba6 Qc2 Bb5 Nf5 Rb7 Nc3 b1B Nh4 b2 Qb3 Bg6 Nb1 Bf7 Qb6 d6 Qa2 Kd7 Nf5 Kc8 Kh4 Kb8 Ng3 Bh6 Qa1 Rf2 N1e2 g1R Nec3 Rf8 h8B Bg2 Nf1 Bf4 Bg7 Qd7 Qa2 Bg8 f7 Bh2 Bd4 Rc8 f8N Rf3 Nh7 Bf7 Ng5 Ka8 Bc5 Kb8 Bb4 Rc5 Na3 b1B Qb2 Bc2 Nab1 Bf5 d3 Ka8 Ng3 Rd1 Re1 Rd2 Nf1 Rc2 Qa2 Re2 Bb2 Rc2 Ba1 Rb2 Qa3 Ra2 Qb2 Kb8 Qc6 Ka7 Qb6+
1QQr4/1b1k2q1/2Q1n3/2Q1pPq1/1q1np1pr/p4B1R/2Rb1P2/K1N1b1N1 b - - 0 1 illegal: No possible last move
6R1/1N3b1q/1bpp1r2/1p1r1RBQ/R2bKP2/4p1Rq/1Q1P4/1knn2qN b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 b4 a6 b6 Bg7 b7 Bf8 b5 Ra7 b6 Ra8 Bb5 axb5 Ne2 Ra2 Ng1 Rxc2 Ke2 Kf7 Ke3 Kg6 g4 e5 f4 h5 g5 Kf5 g6 d6 g7 h3 Na3 h2 Qe1 c6 Qf2 h4 Bb2 h3 Qf3 Nd7 b8Q Ne7 g8R Nc5 b7 Nd3 Qc7 Bg7 b8R Rc5 Qa7 Nd5+ Ke2 e3 Qh5+ Ke4 Qb6 Qc7 Nf3 Be6 Ne1 Rh6 Rbc8 Nc1+ Kd1 Rf6 Nb1 Nc3+ Kc2 e2 Rg1 h1Q Rg2 h2 Rcf8 Qg1 Nd3 h1Q Na3 e1B Rg3 Rd5 Nc4 Nd1 Na5 Bf2 Nb7 Bf7 Ra4+ Bd4 Qa5 Qh3 Qb4 Qcd7 Bc3 Qdf5 Qb2 Qh7 Ba5 Bh8 Bd8 Bg7 Ra1 Bb6 Be7 Re6 Bg5 Rf6 Qa3 Kd4 Qb2+ Kc4 Raa8 e4 Nf2 Bh8 Nh1 e3+ Qg6 Rff5 Qh5 Bhd4 Rfe8 Rf6+ Re4 Qh8 Re5 Qh7+ Rf5 Na2 Qc1 Kb4 Kd3 Kb3 Qa1 Nc1+ Ke4 Kc2 Qa3 Kb1 Ra4 Ba5 Qc3 Bab6 Qb2+
1k1K4/4pBbP/3nr2R/Q3n1Bb/2pQ4/2Qq2pp/b2n1R1P/1QN1r2b b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 axb4 c5 h5 c6 h4 Nf3 dxc6 Ba3 c5 Bb2 Qd5 Bc1 Qh5 gxh5 Be6 Na3 Bc8 Nc2 b3 Nb4 cxb4 Ng1 Bg4 Bg2 Bh3 Bf1 Bc8 Ke2 Kd7 Ke3 g5 Kd4 c5+ Ke5 Kc7 a4 b5 f4 c4 d4 g4 a5 e3 d5 b2 h6 b1B f5 g3 a6 b3 f6 b2 f7 b4 a7 h3 Ra5 e2 Ra4 e1N Bg2 b3 Bg5 Bg4 Ra6 Nf6 Ne2 Ne4 Rf1 Ba2 Rf2 b1B Nc1 Bh5 Ke6 Bg7 f8Q b2 Qff3 Nd6 Qc3 Nc6 h7 Ne5 Be4 Rhc8 Bg6 N1f3 Bf7 Nd2 Rb6 Rab8 a8Q Be4 Qaa5 b1Q Qdb3 Qd3 Qb1 Rb7 Ra6+ Kb8 Rb6 Nf5 d6 Bh1 d7 Nd6 Rc6 Rc7 d8Q+ Rc8 Qdb6 Rf8 Qbd4 Rb6 Bg6 Rf4 Be8 Re4 Bf7 Ng4+ Kd7 Re1 Kd8 Ne5 Nb3 Nb5 Rcf6 Re6 Rh6 Nd6 Nc1+
1Q1r4/nR1Q1QNN/1k1Pp2K/rbq2p2/1qB2p1Q/2nb2P1/p6R/2q4q b - - 0 1 illegal: No possible last move, all moves rejected
2r1q2b/KR6/Np1pp2B/k3N1p1/1bP1n3/n4bbb/BPQ1nQ1Q/1Q6 b - - 0 1 legal: proof: e4 f5 g4 fxe4 d4 c5 a4 cxd4 Bh3 h5 Bf1 hxg4 a5 b6 a6 Nc6 Ra3 Rb8 Ra4 Rb7 axb7 a5 Ra1 Nb8 Ra2 a4 Nd2 a3 Ra1 a2 Nb3 Rh5 Rb1 axb1B Na1 Rh8 Kd2 d3 Ke3 d2 Kd4 e3 h4 g3 f4 g2 f5 e2 f6 e1B h5 Nc6+ Kc4 Na5+ Kb5 Nc4 Ka6 Na3 h6 Bg3 Nf3 g1B h7 Bd4 Bc4 e6 c3 Bf5 Ka7 Bb4 b8Q d6 f7+ Kd7 f8Q Kc6 Nc2 Bb7 Ba2 Kb5 Qc7 Nf6 Ne5 Ka5 c4 Rg8 h8Q Qe8 Qh2 Bf3 Rf1 g6 Qch7 Ne4 Qe1 d1N Bh6 Ndc3 Qb1 g5 Qg6 Bbc5 Nb4 Bh3 Na6 Bb4 Qff6 Ne2 Qgf5 Nc5 Qfc2 Ne4 Qf8 Bfg2 Rf7 Bf3 Rb7 Bdc3 Ng4 Bh8 Qf7 Qa4 Ne5 Rc8 Qf4 Qb5 Qe3 Qe8 Qef2
2R5/1bnR4/3BQqB1/2Pr1qpn/p3n1k1/3Qp1q1/P1Rr2pR/N4nK1 b - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 b5 b4 bxc4 g5 c3 g6 hxg6 Ba3 g5 Bc1 g4 Ke2 c5 Ba3 d5 Qc2 d4 Ke1 e6 Qb3 c4 Bc1 Bc5 Qd1 c2 Nc3 dxc3 bxc5 Qh4 Rb1 Qf6 Ra1 Qd8 f4 Kf7 Kf2 Kg6 h4 Kh5 d4 a5 f5 g5 f6 e5 d5 e3+ Kg2 a4 f7 e2 f8R e1Q d6 e4 d7 e3 Rh3 Qf6 d8R Qg3+ Kh1 Bb7+ Qd5 Na6 Rd6 Nc7 Rd7 Rd8 Ba3 c1N Bd3 c2 Qe4 c3 Bb2 Nb3 Rc1 Nd2 Rh2 Nf1 Ne2 Qf5 Re8 Nf6 Nd4 Rg8 Qd5 Ne4 Nb3 Rg6 Na1 Rd6 Qe6 Rd5 Rd6 Rd7 Rc8 Rd8 Rd7 Qf6 Rd1 c1Q Rdd2 c2 Be5 Qb1 Bd6 c1N Rb2 Ne2 Rc2 Qge1 Kg2 g3 Kh1 Nf4 Kg1 Nf2 Bh7 g2 Bf5 Ne4 Bg6+ Kh6 h5 Qg3 Bf7 Kh7 h6 Nh5 Bg8+ Kg6 h7 Rd2 h8Q Rd5 Qf7+ Kf5 Qhh7+ Kg4 Qe6+ Qf5 Bf7 Qb2 Bg6 Qf6 Qh8 Qf8 Qc3 Qf6 Re7 Rd2 Qd3 Rd7 Bf4 Rd6 Rd7 Rd5 Bd6
2N5/n5Qq/p1Qbn3/kP1b1qpR/4P1p1/2rbpQ2/q3Q1KN/1qB3R1 b - - 0 1 legal: proof: b4 d5 g4 b5 a4 bxa4 e4 dxe4 g5 c5 c3 c4 g6 hxg6 Be2 g5 Bd3 g4 Kf1 e5 f3 e3 Bc2 e4 Ra2 a6 Kg2 e2 Bb3 cxb3 Ra3 e3 Ra1 Ra7 Ra3 Re7 Ra1 Re4 fxe4 Qg5 Qe1 Qf6 Qd1 Qd8 d4 Kd7 h4 Kc6 d5+ Kb5 h5 e1Q d6 g5 h6 f5 h7 f4 d7 b2 Ra2 a3 Rh4 f3+ Kh1 f2 Rh5 f1B Nf3 Bb7 Nh2 Nf6 Nd2 b1Q Qf3 Bd3+ Kg2 Ne8 Ra1 a2 Nc4 Qc8 d8Q Qf5 Nb6 Qh4 Nc8 Bd6 c4+ Ka4 b5 Ng7 c5 Nc6 Qd7 Ne6 Qg7 Na7 c6 Ka5 c7 Bd5 Qb2 Rf8 h8Q Rf7 Qhg7 Rf6 Rh8 Qhh7 Qbe2 Rh6 Ne7 Rf6 c8Q Rf8 Qa8 Rc8 Qb7 Rc3 Qc6 Qb3 Rb1 a1Q Nc8 Qaa2 Ra1 Qg8 Rh5 Qgh7 Bd2 Qb2 Rg1 Qbb1 Bc1
2Q1n1q1/RQP2RN1/n2p3K/q3r2p/2QP3b/3k2p1/1rr2pn1/B1B3Qn b - - 0 1 legal: proof: g4 c5 f4 a5 b4 f5 Ba3 fxg4 Bg2 e5 Bd5 a4 Bc1 cxb4 Bb3 axb3 h3 g5 f5 g3 Kf1 g4 Na3 b6 Ke1 g2 Nb1 g3 Nc3 Bb7 Nd5 Bc6 Nf4 exf4 Ba3 Bf3 Bc1 Bg4 hxg4 Qc7 Rh6 Qc8 Rh1 Qd8 c4 Kf7 d4 Kf6 Kd2 h5 a4 b2 e4 b1R a5 b5 c5 f3 Ke3 b3 Kf4 b4 a6 b2 c6 b3 c7 Be7 a7 Na6 Nh3 g1N Ng5 d6 Ne6 Rb8 a8Q Qf8 Bd2 Rc1 Qb7 b1N Ng7 b2 Bc3 Na3 Rh4 b1Q g5+ Kf7 g6+ Kf6 Ra2 Nc2 Ba1 Ne3 Rhh2 Rc3 Rhf2 Rc2 Ra4 Qa2 Qc1 Nc5 Ra7 Na6 Qf1 Qa5 Qg2 Bd8 e5+ Ke7 Kg5 Nf6 e6 Qg8 Rf1 Ne8 Qh1 Ng2 Rf2 Ne2 Qg1 Nc3 Rf1 Nd1 Rf2 Qf7 Rf1 Rg8 Kh6 Kf6 e7 Qfd5 Kh7 Kg5 f6 Kf4 f7 Ke4 f8B Nf2 Kh6 Nh1 Rf2 Kd3 Rf1 Nf6 e8Q Qda2 Qd7 Ne8 Qdc8 Bh4 Be7 Rf8 Bg5 Rf5 Bc1 Qf7 Re1 f2 Re7 Qfd5 Rf7 Re5 Nf5 Ra2 g7 Rc2 g8Q Qda2 Ng7 Q2d5 Qc6 Rbb2 Q6b7 Qda2 Rd7 Qf7 Re7 Qf8 Qge6 Qg8 Rf7 Qb5 Qa2 Qa5 Qc4+
1b5R/b2n3k/2Q5/K2Rn3/1QrNn1bp/RBpp1PbP/R1rp2b1/4B3 b - - 0 1 legal: proof: b4 a5 e4 axb4 d4 e5 c3 bxc3 f3 Qf6 g3 Qf4 gxf4 exd4 e5 f6 Nd2 f5 Ne4 fxe4 a4 Kf7 f5 b5 h3 c5 a5 d5 f6 Kg6 e6 h5 e7 b4 e8R b3 a6 e3 f7 e2 a7 c2 Kd2 e1B+ Kd3 b2 Ra2 b1B Re5 c4+ Ke2 h4 Rb2 c3 Kd3 Kh7 Ne2 g5 Qd2 g4 Ng3 Nd7 Nh5 g3 Qg5 g2 Qe7 g1B Qd8 Bd6 f8Q Ngf6 Bg5 Bg3 Nf4 Bb8 Ra2 Ne4 Ne6 Rg8 Bf4 Rg4 Qb4 B1f2 Qdb6 Bg1 Ke2 c1N+ Kd1 d3 Nd4 d2 Bc4 Be3 Qc6 Bd3 Bb3 Bf1 Kc2 Bg2 Rg1 Nd3 Rga1 Bef2 Ra3 Be3 R1a2 Bg1 Rf5 N3e5 Be3 Rf4 Bf2 Rg4 Be1 B1f2 Bc4 Be3 Kb3 Bg1 Nb5 d4 Ka4 d3 Nd4 Bd6 Rc2 Nf8 Nb5 Nf2 Qa5 Nf7 Rd5 Ne5 Rb3 Bf5 Qb4 Nfd7 Rcb2 Rd4 Rc2 Bg4 Rcb2 Ne4 Rc2 Re8 a8R Bc7 Rc1 B1f2 Ra1 Bd6 Rb2 Rf8 Bb3 Rc4 Rc2 Bfc5 Nd4 Rd8 Ra7 Ra8 Kb5 Bb6 Rb7 Ra3 Rb8 Ra2 Rb2 Ba7 Rh8+ Kg7 Rc2 Rb2 Ka5 Bdb8 Ra3 Ra2 Rc1 Rb2 Rca1 Rc2 Re8 Kh7 R1a2 Rb2 Rc8 Rc2 Rh8+
K1R5/p1Qr4/pRNQ4/RP3b1q/2pbb1b1/pP1B1b2/2rR3B/b5nk b - - 0 1 illegal: No proof kernel
1NkNn2Q/Q3pp1r/2Q3n1/K1b2R1B/2p2np1/1P1r1p2/PBr2b2/5Qq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 g5 e5 gxf4 e6 b5 Ne2 b3 Nec3 b2 Na3 b1N Ne2 b4 Ng1 dxe6 Qh5 e5 Qd1 e4 g4 h5 d3 b3 g5 b2 Be3 Nc3 Rb1 Be6 Rc1 Bb3 cxb3 Qd6 Rc2 Qd7 Rg2 Qd8 Rg4 hxg4 Kd2 Kd7 h4 b1R d4 c5 d5 c4 d6 f3 g6 Ra7 h5 Qc8 g7 Qb7 h6 Na4 h7 Na6 Bd3 Nb8 Bd4 Kc8 d7+ Kc7 Nh3 Nc6 Bb2 Ne5 Ng5 Nb6 Kc3 e3 Kb4 e2 Rh5 Rc1 Nc2 Nf6 g8Q Ne8 Qg6 Bh6 Nd4 Rc2 Nc6 e1B+ Kb5 Ra6 Nb8 Qa7 d8Q+ Kb7 Qe4+ Nd5 Ne6 Qg1 Qa5 Be3 Nd8+ Kc8 Qc1 Re6 Qa7 B1f2 Ka5 Bc5 Qf1 Nf4 Qd5 Rd6 Bg6 Rd7 Rf5 Rd6 Qda8 Rd3 Bh5 Neg6 Qd5 Rg8 h8Q Rg7 Qd6 Rh7 Qc6+
nN1r4/2Qnq3/Rpp2b2/1kNp3p/1bp1Q3/1R1R4/K2PrRP1/5bbB b - - 0 1 illegal: Other
4R3/3QR1b1/kNq1b3/q1RpP1K1/2p4n/b2ppqP1/3N1Qpr/n1B3R1 b - - 0 1 illegal: No proof kernel
4b1r1/rpQ1qQq1/3p1B2/bk3PR1/r1P1pNnQ/RK1B1p2/4p3/b6Q b - - 0 1 illegal: No possible last move
6b1/pPk3pB/Bq1N1r1b/p3Q3/1r1r1R2/b1PN1bp1/3p3B/2B2KnQ b - - 0 1 legal: proof: e4 c5 a4 h5 b4 f5 g4 fxe4 c3 hxg4 Ra2 b6 d3 Nc6 b5 Ne5 a5 bxa5 Rb2 Nc4 Rb4 cxb4 dxc4 Ba6 Kd2 Bb7 Ke1 Bc8 f4 d5 h4 Kd7 h5 e5 c5 d4 f5 d3 b6 b3 h6 b2 h7 g3 f6 e3 f7 e2 b7 e4 c6+ Kc7 Rh3 Ba3 f8B Nf6 Qb3 Nd5 Bc5 Bg4 Nf3 Rf8 h8Q Nf4 Qhg8 Rf6 Nbd2 b1B Nc4 Ba2 Nfe5 Bf3 Rh4 Nh3 Qb1 Ng1 Nd6 Bd5 Qf8 Bg8 Qe8 Rc8 Rf4 Ra8 Kd2 e1B+ Ke3 d2 Nd3 Rc8 Qe5 Rb8 Kd4 e3 Qa1 e2 Ke3 Qc8 Qb1 Qe6 Bd4 Qb3 Bc5 Qb6 Qa1 Kd8 c7+ Kd7 c8B+ Kc7 Bf5 Rd8 Bh7 Rd7 Nb2 Bf2+ Kd3 e1R Qb1 Re4 Bd4 Nh3 Be2 Be1 Bg1 Bf2 Bh2 Be3 Qa1 Rb4 Bf1 Bh1 Ke2 Rd8 Nd3 Bg2 Rg4 Bh6 Rf4 Bc6 Qa2 Rd7 Qad5 Rd8 Qh1 Be4 Bg2 Ng1+ Kf1 Bc6 Bd5 Rd7 Bc4 Bf3 Ba6 Rd8 Qh5 Rd7 Nf7 Rd5 Nd6 Rdd4 Qe5
1N1k3b/1b3Q1N/n2P1n1p/1PNp2Q1/p1B3rp/3n2R1/3prBN1/1K1b2b1 b - - 0 1 illegal: No proof kernel
5nb1/1N2b3/1P1Np1n1/1q1nkbr1/B1N1P3/1r1QNR2/KQ2q3/1R1bbq1r b - - 0 1 illegal: No possible last move
4bK2/2N4p/q5NP/4QP2/n4Nrr/2b1RrN1/Qrr3nr/rq1k1BRb b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 e6 fxe6 f5 e5 Bd2 e4 Bf4 gxf4 Kf2 Kf7 a4 Kf6 c4 Kg5 g4 b5 h3 d5 a5 e5 a6 e3+ Kf3 d3 c5 b3 a7 d4 Ke4 d2 c6 e2 c7 e1R+ Qe2 d1B Bg2 f3 Ra3 b2 Rd3 b4 Na3 b1R Re3 b3 Nc2 b2 Ra3 f2 Ra1 f1R Bf3 d3 Ra6 d2 Ne3 Nh6 Rc6 Bd7 Kd5 Kf4 c8N e4 h4 Qb6 g5 Bb4 h5 Qa6 g6 Bc3 Kd6 Be8 Ke7 Rg8 g7 Ng4 h6 Nd7 Qf2 Nc5 Nc4 e3 Rh4 e2 Rc7 Na4 N8b6 Rc8 Rh1 Ne3 a8N Ng2 Rh3 Bc2 Rc6 d1R Rg6 Be4 Qd4 Rd2 Ne5 Rc4 Rhg3 Rec1 Nc7 e1R Be2 Rcc2 Re3 Rf3 Bf1 Ree2 Rg3 Ra1 Qd5 b1Q Rg6 Rh8 g8Q Rb2 Kf8 Rdc2 Rg7 Rd4 Ng6+ Kg3 Nba8 Kf2 Qe5 Ke1 Ne6 Kd1 Nac7 Ref2 Nef4 Bb7 Nh5 Rh4 Ne2 Bd5 Neg3 Rfe2 Ke7 Bb7 Qa2 Rg8 Nhf4 Ref2 Rf7 Rg7 Kf8 Rfd2 Ne7 Rgg4 Neg6 Ne1 Bg2 Rf1 Ne7 Rg7 Ngh5 Re2 Bh3 Rh2 Rf6 Bh1 Rg6 Rf3 Rg1 Rg6 Ng3 Rgg4 Bf1 Ng2 Neg6
b2qk1R1/1N1r1qQb/1b1pB3/n4PB1/1n1PR3/1Q1n1q1Q/n1r1n1QK/7n b - - 0 1 illegal: No possible last move
1b1Nn3/2n5/QnBr3b/2Q1P2b/rrQ1K1RB/b1Nr1rp1/k5P1/1qQ2q2 b - - 0 1 illegal: No possible last move
1N1Q1rrb/1nkb1p1Q/1r2b1B1/1QP1nP1b/q2b2qq/5QB1/2rR4/1KR5 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Na3 d3 Nb5 hxg6 Bd2 g5 Nd4 exd4 Bc1 g4 Kd2 d5 e4 Kd7 h4 g5 c4 b5 f4 g3 a4 g2 e5 g4 e6+ Kc7 c5 g3 f5 b3 e7 b4 e8Q b2 h5 b1R h6 b3 h7 b2 a5 Be6 a6 Qh4 a7 Bg7 Ne2 g1Q Qc2 g2 Qf8 Nd7 Kd1 d2 Qc4 Ne5 Kc2 d1B+ Kd2 d3 Qc2 d4 Ng3 Nf6 Rh2 Rg8 h8Q Ne4+ Ke1 Nd6 Kd2 Nb7 Qc4 Ba4 Be2 Bad7 Qh7 Bh8 Bh5 Rc8 Qe7 Rb8 Bg6 Rbf8 Ra5 Ra1 Ne2 b1R Rh1 Rb6 Qb5 Rb1 Ra2 Rb3 Rc2 Rc3 Qe8 Qgh2 Kd1 Q2g3 Bf4 g1B Kc1 d2+ Kb1 d3 Nd4 d1B Nc6 d2 Nb8 Bd4 Rg1 Qgh3 Bg3 Bh5 Rgc1 d1Q Rd2 Q3g4 Qe7 Nd8 a8Q Qa4 Qg2 Nb7 Qf3 Rc2 Qd8+
R6K/qr4r1/4p1r1/2P3b1/2qqPkbb/r1N3n1/1BBQQqrB/5NnB b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 h5 d6 h4 Ra2 cxd6 Ra3 d5 Rd3 d4 Rg3 hxg3 Kd2 Kf7 Kd3 Kf6 Ke4 g5 c4 b5 f4 d5+ Kd3 Kf5 h4 b3 a5 b2 c5 b4 e3 g2 h5 g3 h6 g4 h7 b3 a6 Nc6 a7 Bh6 Rh3 Qd7 Ne2 g1B Rh1 g2 Rh3 g3 Qd2 Bg5 Rh6 Nf6 Qa5 Ne5+ Kd2 d3 Kc3 d2 Kd4 d1R+ Qd2 Nf3+ Kd3 d4 Na3 b1Q+ Nc2 b2 Rh3 Bf2 Kc4 g1Q Nc3 g2 Bd3+ Ne4 Qe2 Rg8 h8Q Rd2 Qh6 Bfh4 Rg3 Qc7 Kd5 Rg6 Rh3 Kg4 f5 Qf2 f6 g1R f7 Ng3 f8B Qb6 Be4 d3 Bg7 Qa6 Be5 Qba1 Bb8 b1R Bb2 Bf5 Bf4 Rg2 Be5 Rag8 a8B R8g7 Bc6 e6+ Kd6 Nf1 Bh2 Qc4 Ba4 Ng3 Bac6 Rg8 Kd7 R8g7+ Ke8 Qa7 Kf8 Ra1 Ba4 Rb7 Bec6 Ra3 Be4 Rf6+ Kg8 Rg6+ Kh8 Rd1 Bb3 d2 Qf8 Rbg7 Qd8 Rf1 Ba1 Rb1 Ba4 Rbb7 Bb2 d1Q Qd7 Rg8+ Kh7 Rg1 Bd5 Bh6 Be4 Be7 Bb3 Qdd5 Rh5 Qe5 Qdd2 Qed4 Rh3 Kg5 Bc6 Bg4 Bd5 Ne1 Bh1 Rg2 Ba4 Nf3 e4+ Qde3 Rh5+ Kf4 Rd5 R8g7+ Kh8 Bh4 Rd8 Ng1 Ra8 B6g5 Bb3 Ke5 Ba4 Qed3 Ne3 Kf4 Bc2 Qdd4 Nf1+
b1Nr4/4Q1KB/Rbrpq3/2N1N3/3P1k1b/1rnRnQ2/2bPb3/1qNr1q2 b - - 0 1 illegal: Other
Q1BK4/Qr1bB3/pRbP1R1n/b2Qq1q1/2Qn3n/P4qN1/kq5n/5rq1 b - - 0 1 legal: proof: f4 b5 g4 g5 c4 gxf4 e4 bxc4 Nc3 d5 g5 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 Kf2 Kd7 d4 Kd6 b4 Kd5 h4 e5 h5 c5 a3 f5 b5 a6 b6 g3+ Kg2 e3 Kf3 c3 h6 c4 h7 g2 g6 c2 g7 e4+ Ke2 f3+ Ke1 c3 b7 f4 Bb2 c1Q Be2 c2 Rh6 Bb4+ Bc3 Qf6 Bb5 f2+ Ke2 f1B+ Ke1 e2 Kf2 e1N Ba4 Kc4 d5 f3 Kg3 f2 d6 e3 Ne2 Ba5 Rh1 Ra7 Nd4 e2 Rh3 Bd7 Nf5 Nf3 Kg4 Nc6 b8Q Rb7 Qa7 e1Q Bd2 Qc3 Bg5 Nh4 Be7 Q1b2 Kg5 g1Q+ Ng3 Nh6 g8Q+ Qe6 Qf3 Bg2 Rf1 Nd4 Qh5 Qd5+ Kf6 c1Q Bd1 Q3e3 Bg4 Kb3 Qe6 Rhb8 h8Q Ka2 Qhe5 Qdb3 Qc4 Bgc6 Qed5 Rg8 Be6 Rg4 Qha8 Rf4+ Bf5 Qf3 Re1 f1N Re6 Ng4+ Kf7 Nfh2 Rf6 Qe4 Be6 Rf1 Kf8 Qg5 Bf5 Be8 Bc8 Bed7 Kf7 Qee5 Kf8 Bf5 Kf7 Nh6+ Kf8 Rd7 Ke8 Rc7+ Kd8 Bfd7 Qcb5 Be1 Qbc4 Rb7 Ne4 Bd2 Re3 Be1 Ng3 Ba5+ Qb6 Ka1 Rc3 Qd1 Re3 Qf3 Rb3 Ka2 Qc7 Rb6 Qca7 Rb7+ Rb6+
1nq2Nb1/K1n1rr1N/Brp1k3/2bq4/5r1N/1n1P1Q1b/2P1N3/1r1RQRn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 Ke2 Kd7 Ke3 g5 Kd4 e5+ Kc4 b5+ Kd5 e3 f4 c6+ Ke4 b3 a4 e2 h4 e1Q+ Ne2 b2 f5 g2 a5 g1R a6 b4 d3 b3 f6 g3 a7 g4 f7 g2 h5 g3 h6 Bc5 f8Q Rh7 Qf7+ Ne7 Nd2 b1N Qf6 b2 Nc4 Nd5 Ra6 Qea5 Qc1 Nc7 Qf3 Ke6 Nd2 Rf7 h7 Bd7 h8N Qc8 Ng6 Qb5 Rh4 Rh1 Rh8 g1R Qe1 g2 Ra1 Rh3 Rf8 Rh4+ Qf4 Rgh1 Nf3 g1N Bh3+ Rg4 Bf1 Rhh7 Bh3 Re7 Nfh4 Rhf7 Nc1 Bb4 Ke3 e4 Kd4 e3 Ne2 Nd2 Rd1 b1B Qe4+ Kf6 Qf4+ Bf5 Qe4 Rf4 Bg4 Bd7 Be6 Qf5 Bc4 Ba2 Ba6 Nb3+ Kc4 Rf2 Qf3 Bc5 Re8 Ke6 Nf8+ Ke5 Nh7 Ke6 Rf8 Qd5+ Kc3 Rf4 Rf5 Kd6 Rf8 Bh3 Rf7 Ke6 Rf8 Nd7 Rf7 Rb8 a8N Rb5 Nb6 Nb8 Nd7 Rb6 Kb2 Bd4+ Ka3 Rf1 Ka4 Bc5+ Nd4+ Kd6 Ndf8 e2 Qb4 e1R Ne2 Nd4 Ka5 Rf2 Rd2 Rb1 Rd1 Ke5 Qe1 Bc4 Nfg6+ Ke6 Rf5 Rf1 Ngf8+ Kd6 Bb5 Rg4 Qff2 Qe4 Ng2 Bg8 Nh4 Qd5 Qg2 Rgg7 Qg4 Rgf7 Qh5 Rf4 Bc4 Rfe4 Rf1 Ref4 Qf3 R6b2 Nfg6 Ke6 Ba6 Bb4+ Kb6 Ba3+ Ka7 Rb6 Qg2 Bc5 Qf3 Nb3 Ngf8+
1Q4Qn/1Bn2p1K/b1qq3b/1bqR1r1b/QR2rQ2/2N1Nk2/1rqP1Pb1/8 b - - 0 1 legal: proof: h4 c5 e4 a5 b4 d5 h5 dxe4 h6 a4 Be2 cxb4 Rh5 a3 Bb2 axb2 Bf1 gxh6 Rh2 h5 Rh1 h4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 h5 g4 b5 a4 h3 c3 h2 a5 e3 a6 Ke4 c4 h4 c5 h3 a7 e2 c6 e1Q c7 b3 Ne2 b4 Ra6 e5+ Rf6 Ne7 Nd4 Na6 Rg6 Qd6 Rh6 Ng6 Ne6 Rb8 Rh5 Qe3+ Kf6 Rh6 g5 Nh8+ g6 Bb7 c8Q Nc7 Qc1 Qec5 Na3 b1B a8Q b2 Rf5 b3 Qa6 Rh5 g7 Bd3 g8Q b1B Qh7 b2 Qc3 Bh6 Qaa5 Bba6 Rg1 h1Q Rgg5 h2 Nb5 Be2 Qd8 Bbd3 Qhg8 b1Q Bg2+ Bf3 Rg3 Qc2 Qcb4+ Bc4 Qaa4 Rg5 Bf1 Bh5 Rb3 Qf3 Rb2 h1B Bh3 Bg2 Nc3+ Kd3 Qde8 e4 Rb1 Rb6 Qb8 e3 Bg4 Qe4 Bf3 e2 Rb3 e1R Re5 Qee3 Bb7 Qe4 Rf5 Qec6 Rb1 Bb3 Qf4 Bbc4 Re5 Rb4 Rf5 Bcb5 Rd5+ Rd4 Rb2 Rb1 Rb4 Rb2 Qa8 Re5 Qab8 Bg5+ Kg7 Bh6+ Kh7 Rg5 Ne4 Ke2 Ng7 Rc4 Nf5 Rd4 Qh2 Kf3 Ne3 Rf5 Nc3 Re4 Qf4+
4QKN1/2p1R2b/2q3q1/kQR2n1b/2Qr1bPr/2B2n1r/2P1rr2/1q1B1Q1q b - - 0 1 illegal: No possible last move
2KnQr2/1PpN2qB/N1b5/1q4Br/2NrrqR1/2b1b1qn/2P1q2k/4Q2N b - - 0 1 legal: proof: e4 b5 b4 d5 a4 dxe4 g4 bxa4 g5 h5 g6 h4 Ra2 fxg6 Ra1 g5 Ra3 g4 Rg3 hxg3 Ke2 Kd7 Ke3 Ke6 Kf4 a5 h4 g5+ Ke3 Kf5 f4 e5 d4 g2 h5 g3 d5 g4 h6 a3 d6 a4 h7 a2 b5 a1B d7 a3 b6 a2 b7 Ne7 Qf3 Nd5+ Ke2 e3 Kd3 e2 Kc4 e1Q Kb5 e4 Nc3 e3 Nh3 g1Q Bc4 g2 Nd1 g3 Qf1 Kg4 f5 e2 f6 Bc5 f7 Qf6 f8N Bc3 d8N a1R Bf4 Bd7+ Nc6 R1a4 Bd6 Nf4 Ba2 Rd4 Ng5 Nh3 Be7 Qf4 Nf3 Ba7 Qf2 Qgf1 Bg8 g1Q Bg5 g2 Nd2 Qgh2 Nc4 g1Q Qe3 Qeg3 Qf2 Qg1g2 Rg1 e1R Qd2 Re2 Qe1 Ree4 Nf2+ Kf3 Nh1 Qge2 Bf7 Qhg2 Bg6 Be8 Nd7 Bb6 Ne7 Nc6 Nd5 Nd8 Nb4 Ba7 Ka6 Rf8 h8Q Rf5 Nb6 Bc6 Nd7 Rfd5 Qe8 Kg4 Bf6 Rh5 Bh7 Kf3 Be7 Qg7 Bh4 Qgh2 Rg4 Qhg3 Bg5 Kg2 Ne5 Rc8 Nd7 Bc5 Nb6 Rb8 Ka7 Kh2 Na6 Rc8 Qd2 Qb1 Qd1 Qb5 Qe1 Ba3 Nd7 Bc1 Bg6 Be3 Bh7 Nf7 Qe5 Rg8 Qe8 Rf8 Kb8 Nd8 Kc8
2Q2b2/1rP1Rn1b/2N1R1b1/1b4B1/2rp3b/2rkNN2/1n1P1qb1/bK1Q2rN b - - 0 1 legal: proof: g4 c5 f4 a5 b4 e5 g5 exf4 g6 a4 Bh3 cxb4 Bg2 hxg6 Bf3 g5 Bd5 g4 Bb3 axb3 e4 Ke7 h4 Kd6 a4 Kc5 c4 Kd4 c5 b5 e5 g5 c6 f5 a5 d5 a6 f3 h5 b2 h6 b3 c7 f4 a7 f2+ Ke2 f1B+ Ke1 f3 e6 b4 e7 g3 e8N g2 h7 g4 Nf6 g3 Nh3 g1B Qc2 g2 Kd1 f2 Ra4 Bb5 Ng4 f1B Qf5 Qf6 Nf4 Na6 Rh4 Nc5 Na3 b1R Qe6 b2 Kc2 Bf2 Nh3 g1B Qe7 Bf5+ Kd1 Nd3 Kc2 Bg6 Qe1 Nh6 Ra6 Nf7 Re6 Bg2 Ng5 Re8 Rh3 Bh4 a8Q Qf2 Rhe3 Rb8 Re7 Rb7 Qc8 Bh2 Re2 Be5 Nc4 Bf6 R2e6 b3+ Kd1 Ra1 Nce3 b1B Ba3 Nb2+ Kc1 Kd3 Nf3 B6g7 Bb4 Ra4 Qd1 Rg8 Bc3 Rc4 h8N Bc2 Bb4 Bc3 Bd6 d4 Bf4 Bh7 Bg5 Rg6 Re4 Rgc6 R4e6 Na4 Ngh2 Ba1 Nef1 Rc3 Ng6 R6c5 Ne3 R5c4 Nge5+ Ke4 Nhf1 Bd3+ Qc2 b2+ Kb1 Rb4 Ka2 b1R Qb3 Nb2 Qa4 Bc2 Qb3 Rbc4 Nc6+ Kd3 Ng3 Rg1 Nh1 Ke2 Qa4 Bcg6 Qd1+ Kd3 Kb1
rq1BB3/2Qp3R/2QPN2k/1N1Pbq1B/1n1r4/r2rb3/n3B2n/3bqb1K b - - 0 1 illegal: Other
q7/1Q1K2pq/QrnB1r2/2k2nQr/4b1P1/b1bB4/1rPNqN2/1bQ2R1n b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 g4 a5 d4 cxd4 Qd3 axb4 Qd1 h5 Ra3 h4 Rg3 hxg3 Kd2 Ke7 Kd3 Kd6 Ke4 b5 Kf5 d3 h4 f3 e4 d2 h5 f2 h6 b3 e5+ Kc5 e6 d5 a5 b2 a6 g2 a7 d4 h7 b4 Bc4 f1N Na3 b1R Ke5 f5 e7 f4 e8Q b3 Qg6 b2 Be6 d3 Bf7 f3 Rh6 f2 Be8 Ng3 Nf3 g1B Rh2 f1R Nb5 Bf5 Rh5 Nc6+ Kf4 Nh6 Nc3 Nh1 Qg5 Bd4 Bg6 Rb8 a8Q Rb6 Qa6 Qa8 Qe1 Be7 Nd1 Bc3 Nf2 d1Q Nd2 Qe2 Rh3 Bf8 Rf3 Be7 Qh4 Be4 Qg5+ Nf5 Qb7 Nd4 Ke5 Nc6+ Ke6 Bd6 Kd7 Bf8 Nc4 d2 Qa6 d1Q+ Nd2 Be7 Qb7 Bd6 Rf4 Qd3 Qe2 Qh3 Qea6 Qe2 Rf3 Re8 h8Q Qh7 Qf8 Re6 Qfd8 Rf6 Qdc7 Bf8 Qh2 Rg1 Qhh6 Rg2 Rf4 Rh2 Rf3 Rh5 Rf4 Ra1 Rf3 b1B Ba3+ Kd5 Bd6 Ra2 Bf7+ Kd4 Bc4 Rab2 Bd3 Be7 Rg3 Bf8 Rg1 Kd5 Rf1 Be7 Bf4 Ba3 Bd6 Kd4 Nc4 Kd5 Qc1 Kd4 Qhg5 Kd5 Nd2 Kd4 Bb8 Kc5 Bd6+
4RNK1/p2kN3/2rq1bb1/2Brn1n1/4r1r1/QQ4rP/P3nbnQ/2rRQ3 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 h5 Nc3 h4 Be2 h3 Bf1 fxg6 Bg2 hxg2 Nb1 g5 Qf3 g4 Qe2 Bd7 Qd1 Bc8 Ke2 e5 Ke3 c5 d4 g5 b4 c3 f4 c4 d5 g3 d6 g4 b5 c2 f5 c3 b6 Nc6 f6 Rh4 h3 Be7 f7+ Kd7 f8Q Bf6 b7 Nh6 b8Q Nf7 Qg8 Ng5 Ba3 c1R Qdd5 c2 Ne2 g1B+ Kd2 g2 Kc3 e3 Kc4 g3+ Nd4 e2 Qh8 e1R Qf8 e4 Qb4 e3 Nc3 e2 Qb3 Red1 Qa5 e1N Kd5 Ne5 Bc5 Bf2 Qaa3 g1N Qg7+ Ke8 Qc7 g2 Rb1 Rg4 d7+ Kf7 Ra1 Ne2 Qcb8 Qe7 d8Q g1R Qda5 Bf5 Rb1 Bd3 Ne6 R1g3 Nf8 Ng2 Re1 Rd2 Qbc7 Ke8 Ra1 Rc8 Qd6 Rb1 Qdb8 Rb2 Rad1 c1R Qd6 Rc6 Q5b4 Ngf3 Qba5 Qc7 Ke6 Bg6 Nd5 Rdd4 Q5b4 Rbd2 Ne7 Rde4 Qba5 Rd5 Q5b4 Neg1 Re3 Ne2 Qd2 Bh4 Qe1 Ng5+ Kf6 Qd7 Kg7 Qd8 Qc7 Qd6 Kg8 Ne6 Qca5 Bf6 Qg1 Ng5 Qh2 Red4 Qe1 Rdf4 Re4 Kd8 Rb4 Re4 Rb8+ Kc7 Ne6+ Kd7 Rc8 Rec4 Re8 Rce4 Nf8+
2Qbnq1b/pbn4k/Rq1P1Q1r/3N1b2/rBq2Q1n/1R6/P6n/1B1KQ1q1 b - - 0 1 legal: proof: f4 b5 g4 g5 c4 gxf4 e4 bxc4 Nc3 d5 g5 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 d4 e5 b4 c5 h4 f5 g6 f3 b5 e3 g7 Kf7 h5 e4 h6 Kg6 h7 g3 b6 f2+ Ke2 g2 d5 c3 d6 c2 b7 f4 Rb1 c4 Rh5 c3 Qd5 Bf5 Rb5 Be7 Rb2 Na6 b8Q Nc7 Qc4 Nf6 Rb4 Qf8 Qe6 Bd8 Nf3 g1Q Qe5 Nfe8 Ba3 c1B Rb2 c2 Rb7 Bb2 Qd5 c1Q Rb3 Qc4+ Kd1 e2+ Kd2 e1N Nd4 f3 Ne6 e3+ Kd1 e2+ Kd2 Ng2 Qb4 Rb8 Qdc5 Nh4 Qe3 e1N Qa5 Rb4 Kd1 Ra4 Bd3 f1B Bb1 f2 Bb4 Bg2 Qf4 f1Q g8Q+ Bg7 Qae5 Nef3+ Qe1 Nh2 Rg5+ Kh6 Qf7 Qa6 Qd7 Bb7 Qc8 Qfc4 Rgg3+ Bg5 Ra3 Qab6 Rgb3 Rg8 h8Q+ Kg6 Qc1 Bd8 Qf4 Bc3 Qf6+ Kh7 Qa8 Rg6 Qc8 Nd5 Nc7 Rh6 Nb5 Bb2 Nc3 Ndc7 Nd5 Ba1 Q6g5 Bg7 Qf6 Bh8 Bd2 Rb4 Ra6 Ra4 Bb4
2Q2n2/2Pr1bk1/5bpB/6P1/3qqB1N/N1r1npQn/r1B1Bq2/n2n1R1K b - - 0 1 illegal: No possible last move
2R1KRR1/N5Nq/r1rq3r/PB2pR2/3bP2q/r1b5/1p4n1/n1k1QQrb b - - 0 1 illegal: No possible last move
1r1nN1B1/3r2bN/1p3NRB/2qP1bp1/Q1q3kr/3qrnP1/5K2/Q1r2Nn1 b - - 0 1 legal: proof: b4 e5 c4 h5 a4 a5 f4 exf4 c5 axb4 c6 h4 g3 h3 Ra3 dxc6 Rf3 c5 Rf2 c4 Rg2 hxg2 d4 Ke7 e4 Ke6 h4 c5 a5 f5 e5 g5 a6 b6 a7 c3 h5 f3 h6 c2 h7 f4 Bb2 Kf5 e6 c1Q e7 b3 e8N c4 Rh6 c3 Ba6 c2 Nc7 f2+ Ke2 f1R Ba1 b2 Rg6 f3+ Kd3 f2 Ke2 Kg4 Rh6 Ne7 Rg6 Bf5 Ne8 Nbc6 Nc3 b1R Nf3 Rb3 Bc4 Rb8 a8Q Ne5 Ne4 N7c6 Qa4 Qd6 Nfd2 Qc5 Qe1 Nd8 Bg8 Rh1 d5 g1N+ Kf1 Nef3 Bg7 Re3 Bh6 Rh4 Kg2 Q1a3 Qb1 f1R Qa1 Rd1 Nf1 c1Q Kf2 Qd3 Bf7 Q1c4 N4f6+ Kh3 Be6 Rg8 Bf7 Rg7 Bg8 Ra7 h8N Rde1 Rg7 Rd7 Ng6 Rb1 Bf7 Rc1 Bg8 Be7 Nf8 Bd6 Rg6 Be5 Ne4 Bg7 Nh7 Kg4 N4f6+
1br1k3/1bN2qR1/5p1R/3nn2q/rR3PQ1/R1B2QbP/KpB3bb/2r1n3 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 e5 Na3 d3 Nb5 hxg6 Bd2 g5 Nd4 exd4 Bc1 g4 Kd2 d5 a4 g5 f4 b5 e4 b3 c4 b4 c5 f6 h3 b2 c6 b1B e5 g3 e6 g2 a5 g4 e7 g3 a6 b3 a7 b2 c7 Qd7 Qe2 Bb7 Qe1 Nc6 Qe4 Ne5 Kd1 d2 Qh7 Be4 Ne2 g1B Ra6 g2 Rb6 Bf2 Qf5 g1B Ng3 Bh2 Rg1 Bg2 Kc2 d1N Kb1 d3 Rb4 d2 Nh5 d4 Qd3 Ne3 Ka2 d1Q Bd2 Bfg3 Bc3 Nc2 Qf3 Ne1 Bd3 Qe2 Bb1 d3 Bc2 Rc8 a8R d2 Ra6 d1R Ra3 Rc1 Ng7+ Kf7 e8R Ne7 Bd3 Nd5 Ne6 Bd6 Bc2 Ra8 c8Q Ra4 Rd8 Bb8 Nc7 Qe7 Qf5 Rg8 Rd7 Rc8 Q5g4 Kf8 Rd8+ Qe8 Rd7 Qf7 Rd8+ Ke7 Rh8 Qb5 Rh6 Qc5 Na8 Ke8 Nc7+ Kf8 Bb3 Qc4 Qh5 Qe2 Rg6 Bf2 Qe4 Bf1 Bc2 Qf3 Qg5 Qh5 Rh6 Bh4 Rg4 Bg2 Qf3 B4g3 Qf5 Ke7 Rg7 Kf8 Q5g4 Ke7 Nb5 Ke8 Nc7+
Bq2rNbQ/qq2B3/p3nr2/1R3pr1/5r2/Rr2n2B/P3n2P/KQB1b1k1 b - - 0 1 legal: proof: f4 b5 g4 g5 c4 gxf4 e4 bxc4 Nc3 d5 g5 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 d4 Kd7 Kd2 Kc6 Kc2 Kd5 Kb1 e5 b4 c5 g6 f5 b5 c3 g7 g3 b6 a6 b7 e3 Qd2 Ke4 d5 c4 d6 f3 d7 f2 Ba3 c2+ Kb2 c1N Qd1 g2 Bb4 e2 Rb1 Ke3 Nf3 g1R Ng5 e1Q Qc2 c3+ Ka1 e4 Be2 f1R Ba3 Kf2 Rb4 e3 Rc4 Ne7 g8B Rh3 Bd6 Nbc6 b8Q Nd4 Qc7 Nd5 Bg4+ e2 Qa4 c2 Be5 Bb4 Qb7 Ne6 Bf7 Rb3 Qa7+ Ne3 Rc7 Rb8 Qa8 Rb6 Bf6 Qd2 Bfh5 e1R Qb5 Qd5 Nh7 Qb7 Bh3 Rg5 Bb2 Ne2+ Bc1 Qe7 d8B Qa7 Rc3 Qeb7 B3g4 Kg2 Be7 Rf4 Rf1 Rc6 Rf3 Kg1 Nf8 Bd7 Rf2 Be8 Qb8 Bf7 Bh3 Bg8 Bf3 Rb2 Q8e5 Qbb8 Qg7 N2d4 Bd6 Nd8 Rb3 Nc4 Bc7 Re8 Bd6 Be1 Be7 Rf6 Ba8 N8e6 Ra3 Ne3 Qh8 Rb4 Rd2 Ne2 Rdd3 Rb2 Bd2 Rbb4 Rdb3 c1Q+ Rb1 Qcc7 Bc1 Qcb7 Qd3 Rb6 Rb4 Rb5 Qb1 Rb6 Rd4 Rb2 Rd5 Rb3 Rb5
2rn1k1B/1bpnrQ2/6nb/4p1q1/n1b1R2n/P3PN1N/B6n/K1QB1Bn1 b - - 0 1 illegal: Other
n1qb2B1/2rNQnQ1/1p4br/2r2p1q/1B3P2/NR3P2/K2nN2N/3nk1qb b - - 0 1 illegal: Other
n3B1nK/B3q2Q/B1k2BRQ/b2pN3/1n1P4/4NrpP/1qq3br/3b1rn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 a4 h5 g4 hxg4 e5 c5 e6 c4 Ra2 fxe6 Ra3 e5 Rg3 e4 Rb3 cxb3 Ke2 d5 Ke3 Kd7 Kf4 e5+ Kf5 b5 Kg6 g3 f4 b2 d4 e3 c4 e4 a5 e2 a6 e1N c5 g2 a7 b3 f5 e3 f6 e2 f7 b4 Bg5 Nd3 Bh6 e1R Qg4+ Kc6 Qe4 Bh3 Nf3 g1N Nbd2 b1Q Bg5 b2 Nc4 b3 Bf6 Qe7 Ne3 Nb4 Ba6 Bg2 h3 Nd7 Qc2 Rf1 Rh2 Rb8 a8B+ Rb7 Qe4 Qc2 Qd3 b1B Ne5+ Kc7 c6 b2 Qe4 Nb6 Nd7 Rh5 Rh1 Rhf5 Kh7 g5 Kh8 R5f3 Qh7 g4 Qh6 Kd6 c7 Kc6 Qh7 Bh6 f8B Bf4 c8Q+ Bc7 Qe8 g3 Qeg6 Ba2 Qgh6 b1Q Rh2 Qbb2 Rh1 Qee4 Bc5 Bb3 Rh2 Qe7 Rh1 Nc8 Ba7 Ba5 Rh2 Nb6 Rh1 Kc7 Rh2 Rb8 Bc6 Na8 Bcb5 Qd3 Ba4 Bd1 Bc6 Qdc2 Ba4 Bh1 Re2 Rf8 B4b5 R3f2 Ba4 Rh2 Rf2 Be4 Rf5 Bg2 Rg5 Rf3 Rg6 Rf7 Ne5 Rf1 Be8 Kd6 Nd7 Kc7 Bg7 R7f3 Bf6 Kc6 Ne5+
nB5q/1qbbBR2/Q3N1b1/8/r1nBp2r/R1pr2PB/nn2P3/1KQk1q2 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 g5 b6 gxf4 g3 h4 Na3 h3 Nc2 axb6 Ne3 b5 Ng2 hxg2 Qb3 b4 Qc2 Ra4 Qd1 Ra8 d4 Kd7 Kd2 Kd6 Kc2 Kd5 a4 Ke4 h4 c5 h5 e5 d5 b5 h6 f5 d6 f3 a5 f4 a6 f2 a7 b3+ Kb1 c3 h7 b2 d7 c2+ Ka2 b1Q+ Ka3 c4+ Qd6 c3 Rh4 b4+ Ka4 b3 Ka3 b2 Rh3 f3 Qe7 Nc6 Rh5 Nf6 Bg5 c1N Nh3 g1R Bh4 Ke3 Rg5 Kd2 Ra2 Nd3 Bg2 f1Q Nf2 Ne8 Rh5 Nc7 Bh3 Ncb4 Qe6 Bd6 Ne4+ Kd1 Qe8 f2 Ra1 Na2+ Nc5 Qf6 d8B Bd7 Qf7 Rh1 Be7 Rhd8 Rf5 Qh8 Bhg5 Rh2 Bf4 Rh1 Bg4 Rh4 Qc4 Qc1 Qb4 b1B+ Qb2 Qh1 Kb3 f1N Ne6 Ne3 Bh3 Nc4 Rf7 Qc6 Qa3 Ndb2 Qa6 Bg6 Qa3 Qg7 h8B e4 Qa6 Qf8 Bd4 Qh8 Bfe5 Rac8 a8Q Qb7+ Qb5 Qb1 Qa6 Ra8 Qa3 Ra4 Qb6 Bb4 Qa6 Na8 Bb8 Ba5+ Qb4 Rh7 Qbb5 Bb6 Qg5 Rh4 Qf4 Nb4 Ra2 Bc7 Ra3 Qc1 Qh6 Qf4 Qg5 Qf1 Qe3 Nc2+ Ka2 Nb4+ Kb1 Na2 Qg5 Bc8 Bdc5 Rd3 Bd4 Bd7 Qc1+
1n1B4/1k2rnBb/b3B1B1/4bP2/1Nr2p2/Kp4nn/1n1n1PQQ/2rR2Rq b - - 0 1 illegal: Other
2b2kQ1/6q1/r2b2R1/bNbrp1R1/1pN4K/1P2qbRn/1b1PnR1B/5Qb1 b - - 0 1 illegal: No extended proof kernel
2kb3q/Bq4qb/bN1Qrb2/n5n1/R2p2BP/p1bPQb2/1N3QQr/K7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 b5 e6 Ra3 exf5 Rb3 f4 Rb4 cxb4 e4 f5 c4 g5 e5 a5 e6 d5 b6 f3 c5 f2+ Ke2 b3 Kd3 b2 Kc2 g3 c6 g2 h3 g4 e7 f4 b7 g3 c7 Kd7 Qf3 a3 Qb3 a2 Qd3 a1B Na3 b1Q+ Kd1 a4 Qe2 f3 Qc4 Bf6 Bd3 f1B Be4 f2 Qc3 Ba6 d3 f1B Ne2 g1Q Bf3 g2 Qd4 Nh6 Qb6 Nc6 b8Q Na5 Nc4 a3 Qf2 B8g7 Nc3 Qb7 Kc2 Nf7 Nb2 Be2 Kb1 Ng5 Na4 Qg8 Bh5 Bf3 Ka1 Bc3 Rh2 Bgf6 Rh1 Qh2 Be3 g1B Ba7 Qg7 Qg2 Bb6 e8Q+ Kd6 Qe4 Bf5 Bg4 Kd7 Qe3 d4 Rb1 Rh7 Qf8 Re8 Qd6+ Kc8 Rc1 Bb4 Rc4 Bc3 Qef2 Re2 Rb4 Qe5 h4 Rh6 Nc5 Qh8 Nd7 Bh7 Ra4 Qe7 Qe3 Rg6 Qh1 Rh2 Qg2 Qeg7 Qgf2 Bd8 Qg2 Bc5 Qef2 Re6 Qe3 Qb8 Nb6+ Kb7 Qdg3 Bce7 Qge1 Bf6 Q1f2 Kc6 c8Q+ Qbc7 Qd7+ Kb7 Qd6 Qce7 Na8 Kc8 Rc4+ Qc7 Ra4 Qb7 Nb6+
nB1Q1Kbk/qpQ1R3/2Q5/1P1BqbP1/4N3/1n5Q/pr1rn1nb/R2nn3 b - - 0 1 illegal: No proof kernel
b4r2/p1Q1b1rQ/1P1R1qk1/PB1rrq2/6rp/1N2rRQ1/q3NQK1/n6n b - - 0 1 legal: proof: e4 g5 h4 gxh4 c4 d5 c5 f5 b3 f4 c6 dxe4 Bb2 bxc6 Bd4 c5 Be3 fxe3 Qc1 c4 Qc2 Qd7 Qd1 Qd8 a4 Kf7 g4 c5 d4 h5 f4 e5 g5 e2 Kf2 e1Q+ Kg2 c3 b4 c4 b5 c2 a5 c1R d5 e3 f5 h3+ Kh2 c3 f6 e2 b6 h4 d6 c2 d7 e4 Nf3 e3 Na3 Qf2+ Bg2 e1R Qd6 e2 Rb1 Rh5 Nc4 Ne7 Qc5 Nbc6 Qe3 Nb4 Qc3 Nf5 Rf1 Kg6 f7 Qf6 d8Q Ng3 Qa1 Be7 f8Q Bb7 Qa2 Nh1 Nd4 Q2f5 Rf4 Rg1 Qa4 e1R Qa3 Re3 Bf1 Rce1 Rd1 c1Q Rf3 Qa1 Nd2 Rg4 Ne2 Qa2 Qc7 Nc2 Nb3 Na1 Rd4 Rh7 Rd6 Rg7 Qf7+ Kh7 Qac5 Rf8 g6+ Kh6 Qe5 Ba8 Qg3 Re5 Kg1 h2+ Kg2 Rd1 Nc1 Rdd5 Nb3 Rh7 g7 Kg5 g8Q+ Rg7 Qe6 Kg6 Qec8 Nf2 Qc2 h1R Q8c7 Rh3 Q2c5 Nh1 Qf2 Rg5 Qh8 Rg4 Qh7+ Kg5 Nc3 Rfg8 Rf4 Bb7 Bb5 Ba8 Ne2 Re8 Kf1 Rb8 Qgh2 Rhe3 Rf3 Rbg8 Qhg3 Rf8 Qg8 Kh6 Kg2 Kg6 Qh7+
B7/1Kn1p1Qb/2pqr2R/qQ1P1Nbn/4PrNB/r1r3rb/8/1NrN2k1 b - - 0 1 legal: proof: c4 a5 g4 h5 a4 hxg4 b4 axb4 c5 f5 c6 f4 Ra2 dxc6 Ra3 c5 Rf3 c4 Rg3 fxg3 h4 Kd7 f4 Kc6 d4 Kd5 Kd2 Ke4 f5 b5 a5 g5 a6 c6 h5 b3 Kc3 b4+ Kb2 g2 d5 g3 h6 c3+ Ka1 g4 e3 c2 Kb2 Nf6 h7 Qd6 a7 Nh5 f6 Bh6 f7 Bg5 f8Q Na6 Nf3 g1Q Rh4 g2 Be2 Qe1 Nd4 g1R Qg7 Rf8 h8N Rg3 Ng6 Rf4 Nf5 Nc7 Ne5 Rgf3 Qd2 g3 Ng4 g2 Ba6 g1R Bb7 Rgg3 Qe2 Bd7 Bd2 c1R Qb5 Rc3 Rh2 Rf1 Bc1 Kf3 Rh4 Kg2 Bd2 Rd8 a8N R1f3 Nb6 Kg1 Ba8 Rh8 Bc1 Rh6 Na4 Re6 Bd2 Qd1 Be1 Qd2+ Ka1 b2+ Ka2 Qe5 Rh2 b3+ Ka3 Qf6 Nd4 Qe5 Kb4 Qd6+ Ka5 Bc8 Kb6 Bd7 Na3 b1R Nf5 b2 Kb7 Rbc1 Nb1 Ra3 Rh3 Qa5 Nac3 Bc8+ Kb8 Bd7 Nd1 Rac3 Kb7 Ra3 Nd2 b1B Rh4 Bc2 Nb1 Bd3 Nfh6 Bh7 e4 Rfc3 Nf5 Nf6 Rh6 Nh5 Bf2+ Kg2 Qf8 Rgd3 Nd4 Rg6 Nf6 Bh3 Ng4 Re6 Bh4 Kg1 Nf5 Rg3 Qg7
1Rb3Bn/1B3r1N/1b1Qp3/2B1K1br/bb6/PB1bP1Rk/1pq3q1/Qn3r2 b - - 0 1 illegal: No proof kernel
1N6/1B1pb1r1/bP6/Qk1rb3/1qR1KR1b/1n1P2pr/b3QNNN/2n1q2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 b5 e6 Ba3 exf5 Bb4 cxb4 Ra2 f4 Ra3 Rh4 Ra1 Rh8 Kf2 a5 e4 f5 h4 g5 c4 g3+ Kf3 b3 e5 g2 d3 a3 c5 g4+ Kf2 a4 h5 f3 Ke3 b2 h6 f2 c6 a2 e6 f4+ Ke4 a3 b6 f3 e7 Ra5 h7 Nf6+ Kd4 Rd5+ Ke3 Ba6 c7 Ne4 c8Q Nc3 Qc1 Ne2 Qe1 Nc1 Rh4 Nc6 Ke4 Nd4 Nd2 b1B Nh3 g1R Qe3 Ndb3 Be2 f1Q Qc6 f2 Nf3 Qe1 Qec5 f1B Qc3 Bg2 Qe6 Bh1 Nf2 Qb8 Qc5 Qd6 Qe5 Kf7 e8N Be7 Nc7 Rg3 Qa5 Rh3 Qc5 Rg8 h8N+ Kf8 Qh2 g3 Ng6+ Kf7 Qa5 Rg7 Nf4 Qc5 Ng2 Qcb4+ Ke3 Kf8 Rc4 Bh4 Kf4 Ke7 Ke4 Kd6 Qa4 Bc2 Rb1 a1B Rb2 a2 Qa3 Bb1 Rc2 Bc8 Na6 Baf6 Nb8 a1B Rd4 Ba2 Rcc4 Qc3 Bd1 Ba6 Be2 Be7 Bd1 Na5 Ba4 Qd2 Bc6 Nab3 Bb7 Bc3 Qg1 Qd1 Qf1 Qe1+ Qe2 Ba1 Nh2 Bb2 Rc8 Ba1 Rf8 Kc5 Rf4 Kb5 Rc4 Be5 Qa5+
1QRN4/1b1PqN2/Qbpb4/2n1r1b1/B2r2rk/2n4N/2Prnp2/Kb2N1R1 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 e4 dxe4 g5 h6 f5 g6 Bb2 gxf5 g6 f4 Bf6 Ra4 Bh4 Ra8 Bg5 hxg5 a4 e5 d4 Ke7 Kd2 Kf6 Kc1 b5 Kb2 c6 h4 e3 d5 e4 a5 b3 a6 f3 h5 e2 a7 e1B h6 g4 g7 Kg5 h7 f5 d6 b4 d7 g3 Bh3 e3 Bg2 f2 Bf1 e2 Qd3 f4 Rh4 f3 Rh6 g2 Qd4 Bd6 Ra3 Bd2 Rf6 e1R Ra2 Bb7 Re6 Qe7 Ba6 f1R Qc5+ Kh4 Qf5 Nf6 g8N Rf2 Ra1 Nh5 Re4+ Nf4 Bc4 Na6 Bb5 Nc5 Nh3 g1B Nh6 Rag8 a8Q Rg4 Ba4 Ne2 Nf7 Bg5 Qb8 Re8 h8N Rd1 Re5 Rdd4 Nd2 Rfg2 Kb1 b2 Nd8 Rh2 Ka2 b1N Nhf7 b3+ Kb2 Nbc3 Qd3 Bf2 Qa6 Bfe3 Rg1 Rf2 Ka3 b2 Rf5 b1B Kb2 Qf8 Rf4 Re5 Ka1 Qe7 Rf6 Rf1 Rg6 f2 Rg8 Rd1 Nf3+ Kh5 Qd3 Rd2 Ne1 Kh4 Qa6 N5e4 Rh1 Rdd5 Rg1 Bb6 Ne6 R5d4 Rc8 Nc5 Ned8
2n4K/Bb1n1p2/b1r4N/3RrPRQ/1p1P2bb/5q2/1qR2bkQ/1qRN1q2 b - - 0 1 legal: proof: c4 e5 b4 a5 d4 axb4 h4 g5 c5 gxh4 c6 e4 e3 dxc6 Bd2 c5 Bd3 exd3 Bc1 c4 Kd2 Ke7 a4 Kd6 g4 Kd5 f4 Ke4 g5 c5 g6 h5 g7 b5 a5 b3 Kc3 b2 f5 b4+ Kd2 c3+ Ke1 c2 Kd2 c4 a6 h3 a7 h2 Ra5 h4 Nf3 h3 Rb5 Be7 Ne5 Rh6 Qh5 Nd7 Ng4 Kf3 e4 Ba6 e5 Bh4 e6 Kg2 Ke3 d2 Kf4 d1B e7 c3 e8R Ne7 g8R Nc8 Rd5 Rc6 Nh6+ Bg4 Rg5 Qb6 Be3 Qb5 Rc1 h1B Ree5 Rb8 a8Q h2 Re8 Rb7 Qb8 Qf1+ Bf2 Rb5 Re2 Ra5 Ke4 Rb5 Be3+ Bf2 Bf4 Ra5 Bc7 Rac5 Bb6 Ra5 Rce1 c1Q Ba7 c2 Nc3 b1Q Nd1 Qcb2 Qf4 c1B+ Rc2 Rb5 Nc3 Bd2 Rc1 Rbc5 Nd1 Bh4 Nf2 Be3 Nd1+ Bef2 Qd6 Nb8 Ke5 Ra5 Kf6 Nd7+ Kg7 Rb5 Qb8 Ra5 Rd6 Re5 Rd5 Kh3 Bb6 Be4 Kg8 h1Q Kh8 Qf3 Ba7 Kg2 Qd6 Bed3 Qb8 Bb7 Qd6 Bda6 Qc7 Ree6 Qf4 Re5 Qh2+
Q1Rrrn1N/q2q1Bk1/1r3Q1N/1r3bbp/1P1R2Rr/1p4n1/bK5P/6bR b - - 0 1 illegal: No extended proof kernel
5BQ1/1pPQ2p1/r1qr1n1R/b3n3/kP1b3K/2b3QB/q3Qn1R/b2N1n1b b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 g5 cxd4 g6 a4 Nd2 hxg6 Nb1 g5 Nd2 g4 Nb3 axb3 a4 d5 h4 Kd7 c4 Kc6 f4 e5 Kf2 b2 Kg3 b1Q c5 e3 h5 e2 h6 e1B+ Kh2 d3 a5 Kb5 h7 d4 f5 g3+ Kh3 e4 a6 e3 c6 g2 c7 e2 a7 d2 Kg4 d3 Ra3 Be6 Qc2 d1N Rh3 d2 Qa2 Nd7 Ra6 Bc5 Bb2 Ngf6+ Kg5 Ne5 Rd6 Qe8 Rh2 Bd5 Nh3 g1B Nf2 Bb6 Kh4 Bh1 Bh3 Ba5 Bd4 Qc6 Bc5 Rhd8 h8Q Ne3 Qe8 d1N Qd7 Bc3 Re6 e1B Bf8 Qa1 Qe2+ Ka4 Rd6 Nf1 Re6 Nfg4 f6 Qa2 f7 Ba1 Rg6 Bec3 Rh6 Rac8 a8Q Nf6 Qaa6 Ra8 Qad3 Ra7 Qg3 Ra6 Ng4 Bc5 Ne3 Nf2 Nd1 Bcb6 Bc5 Ba7 f8Q B7b6 Bd6 Bc5 Qg8 B5d4 Qde8 Rd7 Bf8 Rd6 Qd7
b4rq1/1b1P4/2R1pR2/Q1rrPp1R/B2R1qQ1/1b2b3/nq2k2B/1n1q1N1K b - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 c4 axb4 Nc3 d5 Ne4 dxc4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kd7 Kg2 Ke6 h4 Kf5 a4 Ke4 d4 c5 a5 f5 d5 b5 a6 e6 d6 b3 a7 g3 h5 f3+ Kh3 f2 Kg2 b4 d7 b2 h6 b1Q g6 b3 g7 b2 h7 c3 e3 c2 Ra3 c4 Be2 c3 Nf3 f1B+ Kg1 g2 Nh4 Nf6 g8R Na6 Rg3 Bh6 Ra2 Rf8 h8Q Nb4 Bd2 c1Q Ng6 c2 Ra1 Bb7 Ne5 Na2 Rh5 Nd5 Nf3 Ndc3 Bb5 Bc4 Ba4 Kd3 e4 Bb3 e5 Be3+ Kh2 g1R Rg4 Rc8 a8R Rc5 Ra6 Qg5 Rc6 Qg8 Rg6 Rg3 Qe1 Qd1 Rf6 c1Q Kh1 Rg2 Qg1 Ke2 Nh2 Rg4 Nf1 Rd4 Be1 Rdd5 Bg3 Qbc2 Qh6 b1B Bh2 Q2b2 Qf4 B1c2 Qb4 Nb1 Qa5 Bd3 Qg5 Qc4 Qg1 Qf4 Qg6 Bda6 Qg7 Ba8 Qg4+ Kf2 Rg5 B6b7 Rh5 Na3 Rc1 Nb1 Rc3 Ke1 Rd3+ Kf2 Rd2+ Ke1 Rd4+ Kf2 Qg1+ Ke2 Qg4+
Q1r1qkr1/1Rp2q1B/2P2nnb/BR2n3/1Pb1r2n/1b1r3Q/4NK1p/6QQ b - - 0 1 legal: proof: e4 b5 h4 d5 a4 dxe4 h5 bxa4 h6 f5 Ke2 e3 Ke1 gxh6 Nc3 h5 Ne4 fxe4 Qe2 h4 Qg4 Qd7 Qd1 Qd8 c4 e5 g4 a5 d4 h5 f4 h3 b4 h2 d5 h4 g5 h3 g6 a3 g7 a2 d6 e2 f5 a4 c5 a3 c6 Nd7 f6 Ne7 g8Q Ba6 Bd2 Rc8 Qg7 Ng6 Bc3 Bc4 Bd2 Rg8 Rc1 a1Q Nf3 a2 Kf2 e1N Qa4 e3+ Kg3 e2 Ng1 e4 Qb3 e3 Qh8 Bh6 f7+ Kf8 Qd1 Qb2 Ra1 Nf6 d7 Qe8 d8Q Qb3 Qd4 Nf3 Qb1 e1N Bd3 e2 Be3 Ng2 Kf2 e1R Ne2 N2h4 Qe4 Bg7 Bb6 Bh6 Ba5 Nfe5 Rg1 h1B Rg5 h2 Qc1 Nef3 Rb5 Nfe5 Qg5 Bf3 Qg1 Rd1 Bb1 Rd3 Qh7 Bg4 Qeh1 Bh3 Bc2 Bhe6 Rb7 Bed5 Rc1 a1R Bb1 Bb5 Rc5 Bbc4 Bc2 Re1 Rcb5 Nf4 Qf5 Nfg6 Qe6 Qa2 Qh3 Bb3 Nc3 Re4 Ne2 Bdc4 Bb1 Kg7 f8Q+ Kh8 Qc5 Kg7 Qa7 Kf8 Qb8 Qd2 Qa8 Qf4+ Q1f3 Qf5 Bc2 Qfe6 Qfh1 Q6f7 Qe6 Rd1 Qf5 Rg4 Qd5 Ne7 Be4 Rd3 Qf3 Rf4 Bh7 N7g6 Qe4 Rg4 Qh3 Rf4+ Qef3 Re4 Qfh1
K3Bbn1/1r2R1r1/QR6/4r1n1/pnp3q1/1nP4r/bNqPk2N/R2Qb2R b - - 0 1 legal: proof: g4 d5 e4 dxe4 a4 h5 b3 hxg4 a5 f5 a6 f4 Bb2 bxa6 Bf6 a5 Bh4 a4 Bg3 fxg3 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 c5+ Kc4 Ke5 Kb5 Kd4 f4 e5 f5 a5 b4 a3 f6 e3 f7 g2 h5 e2 h6 e1B h7 e4 Rh2 a2 Bd3 e3 Rh6 g3 Rg6 e2 Na3 a4 Bc4 g4 Ra6 Nc6 Rb1 a1N Rb6 Nb3 Bd3 Ra7 Bg6 Be6 Ra1 Qc8 Bh5 Rb7 Ka6 Ke4 Nf3 g1N b5 g2 Nh2 g3 Nc4 Nf3 Nb2 g1R Bg6+ Kd4 Bh5 g2 Bg6 Ng5 Bh5 Bg7 f8Q Bc4 Qf3 Bf8 Qf6+ Ke4 Be8 Qf5 Nf1 Kf3 c3 Bf7 Qe6 Qc2 Qc8 Na7 Re6 Nc6 Re7 Bd5 b6 Nb4+ Kb5 Na5 Qa8 Ba2 Qa6 c4 Kc5 Nb3+ Kd6 Rb8 Kc7 Rb7+ Kc8 Bg3 Nh2+ Kf2 Re5 e1R Re6 Re5 Re7 Rd7 Kb8 Rb7+ Ka8 Bh4 Qc1 Ke2 Qb1 Be1 Qc1 Rd7 b7 Rc7 b8R Rb7 Qb1 Rh1 Nf3 Rh3 Nh2 g1Q Qc1 Qg4 Qb1 Rd7 Rb6 Rb7 Qc1 Nf6 Qb1 Rg8 h8R Rg7 Qd1+ Kf2 Qc1 Rd3 Nf1 Ke2 Rh1 Rh3 Nh2 Ng8 Qd1+
1Qbk2Q1/1rq2bb1/1q3p1B/1qN1bR2/rpQ2n1Q/1P4KR/n5P1/1Brq4 b - - 0 1 legal: proof: h4 d5 f4 e5 c4 dxc4 b3 exf4 h5 a5 h6 a4 Nc3 a3 Na4 gxh6 Nb6 h5 Na4 h4 Nb2 axb2 Kf2 b1B e4 b5 a4 c5 d4 h5 d5 c3 e5 f3 d6 f6 a5 c2 a6 h3 a7 h4 e6 c4 e7 h2 Qe1 c3 Ra3 h3 Ra2 Qb6+ Qe3 Nc6 Ne2 Rh7 Ra5 Nb4 Bb2 c1Q Rg1 h1R Qd4 c2 Kg3 f2 Qc5 h2 Nc3 Na2 Na4 b4 Qc4 Bg7 Bd3 f1Q Rf5 Qcd1 Be5 c1B Bf4 Bb2 Nc5 Be5 Be4 Qfe2 Rf1 Qdc2 Rf3 Rc1 Rc3 h1Q Re3 Rb8 a8Q Qhd1 Qa7 Ra8 Qb8 Ra4 Bd3 Bb2 Bh6 Qc3 Qh4 Qef1 Be4 Qfb5 Ref3 Bd3 Qb7 Bc4 Bb1 Qcc2 Qbe4 Bd5 Qef4 Be5 d7+ Kf7 d8Q Qcc4 Na6 Qcc7 Qd7 Bc4 Qd3 Ke8 Qc2 Bf7 Re3 Kd7 e8Q+ Kd6 Rc3 Ne7 Nc5 Ng6 Qg8 Ke7 Qe4 Rh8 Qh7 Kd8 Qc4 Rf8 Kh2 Re8 Rh3 Re7 Qfg3 Bd4 Qe5 Nf4 Kg3 Bb2 Qee6 Be5 Qd6+ Qcd7 Qb8 Qda7 Rg5 Rb7 Rh5 Qc7 Rf5 Qab6 Qg8+
1K1Rn3/2P4p/1Q1rq1N1/b2n2N1/rp1b3Q/qP1r2r1/b2RbN1N/2B1k1q1 b - - 0 1 illegal: No extended proof kernel
KR1qbb2/1p3bR1/N1nb3r/Qn2QPr1/4pNr1/1N2Brk1/3qPq2/6N1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bd2 h3 Bg2 hxg2 Bg5 fxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 Kd3 Ke6 Kc4 Kf5 Kd5 g5 h4 e5 c4 b3 f4 g3 a4 Kg4 c5 d3 a5 e4 a6 b2 f5 d2 h5 Nh6 a7 Nf7 h6 Nd6 h7 Nc6 Rh6 Nb5 Qf1 d1Q+ Bd2 Qe1 Rh1 Qf2 Nf3 g1R Ra3 g2 Qe1 Kg3 Be3 g4 Nbd2 b1B Nb3 Ba2 Qa5 d6 Rh5 Bd7 Rg5 Be8 Rg7 Rf1 Ke6 d5 Ng1 d4 Ra4 Rg8 h8N d3 Ng6 d2 Nf4 d1Q Rd4 Rb8 a8N Qd2 Nc7 Ra8 Rd3 Ra6 Rdd7 Rb6 Na6 Bd6 Rc7 Bf8 Rc8 Bd6 Nf3 g1B Rb8 Bh2 Ng1 Bf8 Rd7 Rg5 Rg7 Ncd4+ Ke5 Rf6 c6 Rh6 Nc1 Baf7 c7 Qfe1 c8Q Rf3 Qcc7 Qf2 Qb4 Kh4 Qbc3 g3 Q3a5 g2 Nb3 Kg3 Qd6 Bh5 Kd5 Nc6+ Kc5 Bhf7 Qe7 Q8d6+ Kb6 Rg4 Ngh3 g1R Qe5 Qd8+ Nc7 Kh4 Qf6+ Rg5 Nh5 Qc8 Na6 Rg4 Ng1 Bhd6 Nf4 Kg3 Qe5 Nc7 Qe7 Qd8 Qee5 Ne7 Ka7 Nb5+ Ka8 Nc6 Qa4 Rf6 Qaa1 Rh6 Qa5
Q1q1B3/R1B3B1/nKpb1n2/2p1rB2/3r3b/Q1Pb1b2/2kP3n/1R2qrnN b - - 0 1 legal: proof: f4 a5 b4 axb4 g4 e5 g5 exf4 g6 d6 Nc3 hxg6 Na4 g5 Nc5 dxc5 Ba3 g4 Bb2 Qd4 Bc1 Qd8 Kf2 Kd7 a4 Ke6 h4 Kf5 c3 Ke4 e3 b5 a5 f5 a6 g5 a7 b3 h5 b2 h6 b1B h7 b4 Ne2 Kd3 e4 g3+ Kf3 c6 e5 g2 e6 g1N+ Kf2 f3 e7 b3 e8B g4 Bh3 g3+ Kf1 f4 Ra5 f2 Rb5 b2 Rb3 Na6 Rb7 Bd6 Bg4 Nf6 Kg2 f1N Qb3 Nh2 Qa3 Kc2 Re7 Rg8 h8B Rg5 Bg7 Re5 Rc7 Rb8 a8Q Rb4 Ra7 Rd4 Bh3 Bf5 Bg4 Bd3 Bf5 Ngf3 Kh3 g2 Ng3 Qc8 Rf1 g1B Nh1 Ba2 Kg2 b1R Bb2 Ra1 Rb1 Bf2 Bc1 Ng1 Bb2 Be3 Bc1 f3+ Kg3 Bd5 Bb2 B5e4 Bc1 Bf2+ Kf4 Bh4 Bb2 f2 Bc1 Bf8 Bb2 Red5 Bc1 Rd7 Ke5 f1Q Bb2 Bd5 Bc1 Re7+ Kd6 Qe1 Bb2 Nb4 Bc1 Qa6 Bb2 Re5+ Kc7 Qc8+ Kb6 Na6 Qb4 Nb8 Ba3 Ne4 Rd1 Bd6 Ka5 Qg3 Rf1 Na6 Rd1 Rb1 Qa4+ Rb3 Bb4 Nf6 Qa3 Bf3 Ra1 Rde4 Rd1 Re1 Rb1 Rf1 Ka4 Rb2 Ba5 Qe1 Bc7 Rb4+ Ka5 Rd4 Kb6
5bq1/p1QN1pB1/2q1n1k1/1nq2rb1/PB5b/2Rb1Q2/r1BPr3/1q3BNK b - - 0 1 legal: proof: f4 d5 e4 dxe4 g4 b5 b4 g5 c4 bxc4 a4 gxf4 g5 h5 Ra3 Bg4 Rg3 Bc8 Rg4 hxg4 Kf2 c5 Kg2 e5 h4 f3+ Kh2 e3 h5 c3 g6 e2 b5 e1Q b6 f2 h6 c2 b7 e4 g7 g3+ Kg2 c4 h7 e3 Ne2 c3 Ng1 e2 Bb2 c1Q Rh6 c2 Bc3 Bf5 Nh3 Nd7 b8B Bd3 Bf4 Rb8 Ra6 Nc5 Rh6 Ne6 Ba1 Nf6 Bd6 Nd5 Nc3 Rb2 Nb1 Nc3 Be5 Ke7 Rh4 Nb5 Bc3 Ra2 Rd4 Kf6 Ng1 Kg6 Kh1 Qc8 Bb4 g2+ Kh2 Qa3 Rc4 c1Q Nc3 Qb1 Nd5 Qc6 Qc2 Qed1 Qc3 e1B Nf6 Qg4 Nd7 Rg8 h8Q Qg5 Bd6 Qac5 Qh3 Rh8 g8B Qg4 Nf3 g1B+ Kh1 Rh5 Qc1 Re5 Rc3 Re2 Qg2 Bh2 Ng1 Bf4 Qf3 Bg5 Be7 Qcf5 Bb4 Qfc5 Bg2 f1R Bh7+ Kg7 Bb2 Beh4 Be4 Rff2 Bf1 Qg3 Qg2 Rf5 Qf3 Kg6 Ba1 Bc4 Bc2 Qg4 Rb3 Bd3 Bg7 Qh5 Rc3 Qh8 Qe1 Qh7 Qg3 Qg8 Qc7
2nNr1N1/1q2n1BR/3kp3/pP1br1rB/q5B1/rb6/1q1qPKQ1/b4B1Q b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 h5 f4 b5 g4 bxa4 f5 g6 g5 gxf5 Ra3 f4 Rg3 Qc7 Rg2 Qd8 Rg4 hxg4 c4 d5 h4 Kd7 g6 f5 b5 g3 c5 e6 g7 a3 c6+ Kd6 c7 f3 h5 a2 h6 a1Q h7 f4 Bh3 f2+ Kf1 d3 Qa4 d2 Bb2 d1B Bf6 d4 Bg2 d3 Rh5 d2 Qa6+ Nc6 Rg5 Bb7 c8B Ne7 g8B Bg7 Qa5 Bb3 Qa6 Qb2 Bf7 Re8 h8Q Qd7 Nf3 d1Q+ Ne1 Qdc1 Rh5 Qcd2 Rh7 Qc7 Bd7 Nc8 Nc3 Qb6 Qa2 N6e7 Nf3 B7d5 Ng5 Qb7 Bh5 a6 Bgf3 Ra7 Kg2 f1R Bc6 Rh1 Bg4 Rh5 Qg8 Ra8 Qa1 Ra7 Kg1 g2 Kf2 g1R Qb1 Rg3 Qh1 a5 Bg2 f3 Bf1 Bh8 Bg7 Ra8 Nh3 Re5 Bh5 Rgg5 Bg4 Rf8 Be8 Rf4 Bg6 Ra4 B6h5 Ra3 Ne4+ Kd7 Nf6+ Kd6 Qf8 Rb8 Ng8 Ra8 Kg3 f2 Qff3 Rb8 Nf4 Ra8 Nd3 Rb8 Nb4 Ra8 Bh3 f1Q Nc6 Qfd1 Kf2 Q1c2 Qhg2 Qe4 Qh1 Qa4 Bf1 Qbd4+ Qe3 Re4 Bf8 Na7 Kg3 Re8 Qef3 Nc8 Nd8 Qa1 Qfg2 Bb2 Nh6 Ree5 Kf2 Qa2 Bg7 Ba1 Ng8 Qac2 Rh6 Qb2 Rh7
b1kn2q1/1p1bQRN1/P1r2r2/nB2N1rN/5nbr/1P2b1p1/K5N1/BQ5q b - - 0 1 illegal: Other
B1b2Q1K/p1b3n1/rRpQP3/1r3q1k/n4q2/q3n3/Pbbn1Q1Q/B4NN1 b - - 0 1 legal: proof: d4 b5 c4 bxc4 b4 f5 g4 fxg4 d5 h5 d6 h4 Nd2 exd6 Rb1 d5 Rb3 d4 Rg3 hxg3 h4 Kf7 f4 Kg6 e4 d5 Ke2 d3+ Ke3 g2 Kd4 c3 Ke5 c2 b5 g3 b6 d4 b7 Nh6 Nb1 d2 Bd3 Ba3 Qf3 d1B Qf1 Qf6+ Kd5 Nd7 b8Q Nf5 e5 Kh5 Qf2 g5 Qe2+ g4 Qf2 Rh6 Nf3 g1N Be2 d3 Bb2 c1Q Qb5 d2 Qbb6 g2 Qb4 g3 Qd6 Nc5 Ba1 Ng7 f5 Rb8 Kd4 Qg6 f6 Rb5 f7 Bc2 f8Q d1N Nbd2 Qf5 Nf1 Ne3 Bc4 Re6 Bd5 Na4 Ba8 Rh6 Qb4 Ra6 e6 c6 Qbd6 Nh3 Ng1 Ng5 Rh2 Ne4 Rh1 Nd2 Rh3 Kh6 h5 Kg5 h6 Kg6 Bc3 Bb2 h7 Kg5 h8Q Kg6 Nf3 g1B Rh4 Bh2 Ng1 g2 Rh7 Nh5 Rb7 Ng7 Rb6 Bf4 Qh2 Bg3 Qd5 Bc7 Qdd6 Ba1 Nf3 g1Q Bb2 Qgg5 Ng1 Qh3 Bc3 Qa3 Bb2 Kh5 Bc3 Nd5 Bb2 Qg4+ Ke5 Ne3+ Kf6 Qd4+ Kf7 Qf4+ Bf6 Bb2 Kg8 Ng4 Kh8 Ne3 Qhg2 Qhf5 Qgg3 Bc1 Ba1 Bb2 Qgh2+
8/qNb1rq2/p1n2n2/1P1r4/k3p2b/pQB1rn2/K1Q1PqBQ/R2Q1b1R b - - 0 1 illegal: No possible last move
1nb1r3/1Q3P1R/2Q4p/1p1KbB1P/rqN1Qqkp/4r3/2nR2rb/Nr5Q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 cxd4 e5 axb4 h5 f6 Bf4 fxe5 Bg3 e4 Bh4 gxh4 Ke2 Kf7 f4 Ke6 c4 Kf5 a4 e5 a5 b5 a6 d5 c5 e3 Kd3 e2 g3 e1Q a7 h6 c6 b3 c7 b2 Nd2 b1R Be2 Qg5 Rh2 Nf6 Nb3 Bd6 Nf3 Ng4 Nfd2 Re8 Nc4 Qb4 Qh1 Ne3 Bd1 Rb2 Bc2 Kg4 f5 Qf4 f6 Rb1 Rd2 e4+ Ke2 Be5 f7 Rb2 Rg1 Ra2 Na1 Ra3 Bd3 Nc2 Rg2 e3 Bg6 Ra2 Kd3 e2 Rg1 e1B Rgg2 Kg5 g4 Bg3 Rg1 Bh2 Rgg2 Bb7 c8Q Rb2 Qc6 Bc8 Rg3 Rb1 Re3 Rg1 Re1 Rg2 Rg1 Qf2 Qb7 Kf4 g5 Kg4 Bh7 Qf4 g6 Qf6 g7 Qf4 Bg6 Rg3+ Ke2 d3+ Kd1 d4 g8Q Rg2 Qh7 Qe7 Kc1 Qd6 Kb2 Qe7 Re2 d2 Kb3 d1R Rd2 d3 Qc6 Nd4+ Kc3 Re1 Qb7 Re3 Qc6 Qef6 Kb4 Qd8 Kc5 Qa5 Kd5 Nc2 Qg7 Bd6 Qd4 Be5 Qe4 Qa3 Re2 d2 Rf2 d1R+ Rd2 Na6 Qb7 Qb4 Qc6 Rb8 a8Q Rb1 Qab7 Ra8 Qd3 Rgg3 Qde4 Kh3 Bh7 Nb8 Rgg2 Rgg8 Rg7 Ra4 Bf5+ Qg4 Rh7 Kg3 Na5 Qf4 Nc4 Rg4 Bg6 Kh3 Qba6 Rg2 Qab7 Kg4 Bf5+
4rN1Q/1N2k2q/q1n3qp/pB2Pnr1/2n1Q2p/n3Nn2/7P/B1K1bNRb b - - 0 1 legal: proof: d4 b5 b4 c5 a4 bxa4 f4 cxd4 f5 g5 Ra3 e6 Rf3 exf5 Rh3 f4 Rh4 gxh4 Kd2 d5 c4 a5 g4 f5 e4 h6 c5 f3 b5 f2 c6 f4 c7 d3 e5 f3 b6 a3 g5 d4 b7 a2 g6 a1N g7 Ke7 Qe2 Qd7 Kd1 d2 Bh3 f1N Bf5 f2 Nf3 Nc6 b8Q Nc2 Qe3 Bb7 Qf4 Na3 Qa7 Re8 Qb8 Qd6 Nc3 Qg6 Bb2 Rh7 Ke2 d1N Nd2 Nde3 Ba1 Nec4 Kd1 d3 Kc1 Rh8 Nd1 Ba8 Nf3 Nfd2 Bd7 f1Q Rg1 Qe2 Ne3 Rh7 Ng5 Nf3 Nf1 Qee4 Ne6 d2+ Kd1 Qef5 Qe4 Rh8 Qc8 Qh7 Qb8 Qfg6 c8N+ Kf7 Qb3 Nge7 g8N Nf5 Qb8 Bb4 Nf6 Rhg8 Nd6+ Ke7 Ng4 Bc3 Nb7 Rg7 Nge3 Rgg8 Ke2 d1Q+ Kf2 Rg7 Nf8 Qdd6 Ke2 Be1 Qc8 Ncd4+ Kd1 Qa6 Kc1 Nc6 Qb8 Qf6 Kd1 Rg5 Kc1 Qfg6 Qc8 Nb8 Ba4 Nc6 Bb5 Nfd2 Nd7 Rh8 Nd8 Nb8 Qc2 Bh1 Nb7 Nf3 Qe4 Nc6 Qf8+ Ke6 Qg7 Re8 Qh8 Ke7 Nf8
2q1n1nq/bpR2B2/r1p5/1P4N1/1NB3QQ/2Bp4/P1B2rkr/K1nn1n1b b - - 0 1 illegal: No proof kernel
B3B3/1p1q1rnQ/p1b1n3/KPq1B1NB/1n3nn1/N3p3/P3k1R1/Q1b2rr1 b - - 0 2 illegal: Other
2KR1r2/qR1n2p1/Br2R1N1/b2q1q1p/bpQ1b3/kPRN4/q1nq3P/4Q3 b - - 0 2 legal: proof: d4 b5 g4 f5 a4 bxa4 d5 fxg4 d6 c5 Bh6 exd6 Bf4 d5 Bd2 d4 Bb4 cxb4 Kd2 h5 Kd3 d5 e4 Kd7 c4 Kc6 f4 a5 f5 a3 e5 a2 e6 g3 f6 a4 c5 Kb5 e7 a3 e8Q+ Nc6 f7 g2 Nf3 g1Q Ng5 Nf6 Nd2 Bd6 f8R Bc7 Qee2 Nd7 Nc4 Rb8 Bg2 Qf1 Rg1 Rb6 Bf3 Bb7 Qe1 Ka4 Nh7 Qh3 Rf7 Rf8 Rc1 a1Q Ne5 a2 Rc3 Qf5+ Qe4 Qa8 Be2 Qa7 Bf1 Qc1 Rg6 a1Q Re6 Qa2 Be2 Rb5 Rfe7 Ba5 Rf7 Rb6 Rfe7 Nd8 c6 Ba8 c7 Nc6 c8R Qcf4 Rf7 Qf3+ Kd2 d3 Qc4 Nd4 Rd8 Nc2 Rfe7 d4 b3+ Ka3 Rf7 Bc6 Bf1 Ba4 Be2 Nb8 Rb7 Nd7 Bf1 Qd5 Be2 Rh8 Nf8 Rg8 Nfg6 Rf8 Kd1 d2 Nd3 Nb8 Bf1 Nd7 Ke2 d1B+ Kd2 Bf3 Be2 Be4 Bf1 Qg5+ Ke2 Rg8 Kf2 Qgf5+ Kg3 Qh3+ Kf4 Re8 Nc5 d3 Be2 d2 Nd3 d1Q Bf1 Nf6 Be2 Rf8 Bf1 Qd7 Ke5 Qd2 Be2 Qf7 Bf1 Bec6 Kd6 Nd7 Kc7 Qhf5 Kc8 Bh1 Bg2 Qg8 Bc6 Be4 Bb5 Qgf7 Ba6 Qg8 Rc6 Qgd5 Re6
QnbR4/2p3q1/5p2/PpRqk1BK/1rQ1qb1B/1nP1Bn2/1N5q/r4Bq1 b - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 e4 axb4 Nc3 d5 g5 dxe4 Nd5 h6 Ne3 h5 Ng4 hxg4 Ke2 Kd7 a4 Kd6 d4 e5 h4 b5 h5 f6 g6 g3 d5 e3 Kf3 g2 c3 e2 g7 e1Q h6 b3 h7 b2 Ne2 b1Q Be3 g1Q Nc1 Qh2 Qd4 Qg6 Qc4 Ne7 g8Q Nf5 Nd3 Bh6 Rd1 Qg7 Nb2 Bg5 Kg4 f3 Bf2 e4 Bh4 e3 Kh5 Ke5 d6 e2 d7 f2 Qf8 Rg8 h8B Nd4 Rg1 Bf4 Rg5+ Ke4 Rc5 Ra6 Bh3 f1Q Rd3 Qfg1 Bf1 Qb1 Rd2 e1N a5 Rd6 Rd3 Nf3 Rd1 Qd3 Qe8+ Qde7 d8B Qe6 Be7 Qdd2 Rc6 Ke5 Rc5+ Rd5 Qc6 Nb3 Qa8 Qdd4 Rd3 Qe4 Bf8 Qgd7 Be7 Rg4 Bg7 Qg8 Bh6 Qg7 Bg5 Qe6 Rc6 Rd4 Bc5 Q6d5 Rd2 Rd3 Be3 Rd4 Qc5 Rb4 Qc4 Rg2 Rd3 Rc2 Rc5 Rc1 Rd2 Ra1 Rc6 Qc5 Rd8 Qcd5 Rc5
2nK1R1R/rp1b1R2/q2RQ2b/pn3NB1/1B1r1p2/1P1kq1q1/q4Pq1/Q1b5 b - - 1 2 illegal: No proof kernel
Rn4nB/2pB1qNp/1n4bq/1rR2nn1/8/3rQkPb/1BPQ3p/b5BK b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 e5 g5 e6 gxh4 Nc3 f4 Nd5 dxe6 Ba3 e5 Bc1 e4 Ne3 fxe3 f4 Kd7 d4 Kc6 a4 Kd5 f5 e5 g3 b5 a5 b3 a6 b2 f6 b1B f7 e2 Kf2 e1N a7 h3 Ra3 b4 Qf3 h2 Qf4 e3+ Ke2 b3 Ra4 e4 Bd2 b2 Ra1 Qg5 Nh3 Ng2 Qf3 Ba2 Qf2 b1N Bc1 Qh6 Ng5 Nd2 Bb2 Nc4 Ne6 Nb6 Ng7 Nh4 Bh3 Nf5 Kf1 e2+ Kg2 e1Q Qd2 e3 Rf1 Ke4 d5 e2 d6 Qf2+ Kh1 e1N d7 Nf3 d8B Ng5 Bdf6 Kf3 Rfe1 Ba3 f8B Bf7 Bc5 Bg6 Re5 Bb4 Be3 Bc3 Rc5 Qf1+ Bg1 Qc4 Ra6 Qf7 Bc1 Ba1 Bcb2 Nc6 Bfd4 Rb8 a8Q Be6 Bf6 Rd8 Ra7 Rd3 Qe8 Nb8 Ra8 Nd6 Bf1 Bh3 Qe7 Nf5 Bfe5 Rd8 Bb5 Rd3 Bd7 Nc8 Qe1 Na6 Bc1 Nf6 Bcb2 Rf8 Qd2 Ng8 Nh5 Re8 Rc3 Nb6 Bh8 Nb8 Qe6 Re7 Ng7 Re8 Qee1 Re5 Rc6 Ra5 Rc5 Rb5 Qee3+
5n2/Rrq2NKb/rr1p1BBN/3Pn2N/1bn2q2/1Q1pQ2q/p2nP3/N4k2 b - - 0 1 legal: proof: b4 c5 d4 g5 h4 gxh4 a4 b5 f4 bxa4 d5 e5 Ra3 exf4 Rd3 Qc7 Rd2 Qd8 Rd4 cxd4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 c4 f5 g4 a5 b5 f3 c5 h3 g5 a3 c6 f2 b6 a2 c7 a1Q b7 a4 g6 h2 g7 d3 Nh3 f4 Ng1 f3 Nh3 a3 Qd2 a2 Qd1 Nc6 b8N Qe5+ Bg5 Nf6+ Kh6 Bb4 g8N d6 Qb3 Ra6 Bg2 f1N Ng1 Ne3 Qa4 Nc4 Qa5 Bf5 c8Q Qc7 Bd2 Nd7 Bg5 Nf8 Nd7 Qf4 Na3 Ke3 Qb5 Kf2 Qa4 N6e5 Kg7 h5 Qb3 h4 Bf6 h3 Nc2 Bh7 Na1 Ke1 Qd8 f2 Nh6 f1N Qe7 Nfd2 Nf3+ Kf2 Rb1 h1Q Ng5 h2 Be4 Rb6 Rb2 Kf1 Ngf7 Qhf3 Qe8 h1R Bg6 Qh3 Qe7 Kf2 Qe6 Rb1 Qe7 Kf1 Qe8 Nef3 Qe3 Nfe5 Rc2 Na5 Rc5 Nac4 Ra5 Rb2 Ra7 Rb7 Qc2 Rb3 Qc3 Ra3 Qc2 Ra6 Qb3 Rbb6 Nc5 Nfd7 Ne4 Rhb8 Nd8 R8b7 Ndf7 Nf8 Ng3+ Ke1 Nh5 Kf1 Bf5 Ned7 Be4 Nde5 Bg6
bqr2bQ1/1krR4/1prpn1Q1/pQQ4b/P1r5/1N3P2/nBq5/K2N1n1B b - - 0 1 legal: proof: d4 c5 b4 cxb4 a4 e5 g4 exd4 g5 h5 g6 h4 Ra2 fxg6 Ra3 g5 Rc3 g4 Rg3 hxg3 Kd2 g5 e4 a5 h4 b3 c4 d6 e5 Kd7 h5 Kc7 h6 b6 h7 b2 Kc2 g2 e6 d3+ Kb3 g3 Ka2 g4 c5 d2 e7 Na6 e8Q Nf6 c6 Ra7 Rh2 Nd7 Qf7 Bb7 Bb5 Nb4+ Kb3 Qb8 Qe2 d1B+ Ka3 Ba8 Qe1 Na2 Qg6 Nc5 Rh3 Ne6 Ne2 g1N Qb4 g2 Nbc3 b1Q Bb2 g3 Nc1 Ne2 Nb3 g1R Rh5 Rg8 h8Q g2 Rh7+ Kc8 c7 Qc2 Rd7 Kb7 Bd3 Ng3 Qb5 Bh5 Nd1 Nf1 Qhe5 Rh1 Qec5 g1R Bc4 Rh4 Bd5+ Kc8 Bg2 Rc4 f3 Kb7 Bh1 Rgg4 Qcg5 Rc6 Qbc5 Ka6 c8Q+ Rb7 Qce8 Rbc7 Qef7 Rh8 Qfg8 Rc4 Qb5+ Kb7 Qgc5 Qd2 Be5 Qd3 Kb2 Qc2+ Ka1 Be7 Q8f7 Rc8 Qfg8 Bf8 Bb2
nq2k3/5p2/R2Qq3/4b1K1/b2N3Q/pr1nP1n1/PRq1p1Q1/nbQBr1N1 b - - 0 1 illegal: No extended proof kernel
Rn1K4/r3pbbp/b2BNBq1/rN2p2B/Q1q4q/n3Pr2/3QP3/1k2Bq2 b - - 0 1 illegal: Other
3RBr2/nnb1kq2/1b1Q2q1/3brpp1/1Q2b1RN/2R2P1p/3nr1P1/2BR3K b - - 0 2 illegal: No possible last move
3kbq1R/Q1qp3N/P4b1n/Qn1p4/1q2B3/1rb1r1pQ/1RQP2bn/5NK1 b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 g5 axb4 Bb2 h6 Bf6 hxg5 Be7 g4 Bd6 cxd6 Kf2 g5 h4 f5 c4 b5 e4 b3 a4 b4 e5 f3 c5 g3+ Ke3 b2 c6 b3 h5 f2 h6 f4+ Kf3 g2 a5 g4+ Ke2 g3 e6 f3+ Ke3 Qc7 h7 Kd8 a6 Bb7 Rh6 Bg7 Nc3 b1Q Bd3 f1Q Nd5 f2 Ra2 b2 Qh5 Bf6 Nh3 g1B Kf3 Ra7 Qg5 Ba8 Qe3 Rb7 Be4 Rb3 Ng5 Bc3 Rh5 Nh6 Qa7 Re8 h8Q Nf5 Qe5 Qa5 Nh7 Rb5 Nhf6 Bb4 Rh7 Nh6 Rh8 Qc2 Bf5 b1B Qa1 Qcc4 Bg4 Bg6 Qc3 Qd4 Qc2 Bc3 Bf5 Rb1 Bd3 Qdb4 Ne3 Qac5 Nh7 Rb3 Bf5 Qfc4 Kg2 f1N Bd3 Nh2 Nf1 Bgd4 Rb2 Qf5 Kh1 Qf8 Bf5 Bg7 Kg1 Bb7 Bd3 Bh5 Bg6 Bgf6 c7+ Ke7 Qf2 Bg2 Qff5 d5 c8Q Qf4 Qb7 Qc7 Qa7 Nc6 Qh3 Nd4 Bd3 Kd8 Bf5 Nb5 Bd3 Qbf4 e7+ Kc8 Qb6 Qb4 Qa5 Rd8 e8Q Bg6 Qe2 Re8 Qe5 Kd8 Qd4 Re3 Qa7 Be8 Be4
b1N2R1r/2p1K3/1b2p2n/1q2Q1R1/Q2N4/p1P1r1q1/Pk1nb1BN/2qN1nq1 b - - 0 2 legal: proof: g4 d5 b4 h5 e4 dxe4 d3 hxg4 b5 f5 b6 f4 Ba3 Qd4 Bb2 Qxb6 Bf6 Qb5 Bh4 Qb2 Bg3 fxg3 Kd2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 f4 b5 h4 a5 f5 g2 h5 a4 f6 g3 f7 a3 h6 e3 h7 b4 Rh3 e2 Qc1 e1N Kg6 b3 Qh6 Nd7 Rh5 Ndf6 Rh3 Bg4 Qg5 Be2 Rh5 Nd5 Nc3 Nf3 Ne4 Ne3 Qh4 Nh6 Nf2+ Kc3 d4 Re8 d5 Nd2 Nf3 g1Q d6 g2 d7 Qh1 d8Q g1Q+ Bg2 Nef1 Qd5 Qhh2 Qg4 Qg3 Rg5 Qc1 Qh4 b2 Qa4 b1B Nh2 Kb2 Qde4 Qe5 c3 Qb5 Qf5 Bc2 Qfe4 Bb3 Qe6 Bd5 Qe5 Ng8 Kf5 Ba8 Ke6 g6 Qae4 Bg7 f8N Nh6 Qa4 Bf6 Qe3 Bd4 Qe5 Qb3+ Kd7 Bb6 Ne6 Qb4 Nd4 Qb5+ Bc6 Qg2 Ke6 Qg3 Bg2 Rhf8 h8N Rg8 Rf5 g5 Nf7 g4 Nd6 Rh8 Rf6 Qh3 Nc8 g3+ Rf5 Qh4 Rg5 Qf4 Bf3 g2 Bb7 g1Q Bg2 Qc2 Rd1 Qg3 Re1 Qc1 Rd1 Nf3 Rd3 N3d2 Rf3 Rd8 Rf8 Rd5 Nf5 Rd3 Nd4 Rf3 Rg7 Re3 Rg5 Qa5 Kd7 e6 Ke7 Qb5 Nd1+
q1R1n3/3nN2r/pp4Q1/1q1R3R/nk1rrbb1/pQN5/1Pr1qP2/4BRK1 b - - 0 1 illegal: No proof kernel
QQn1Nkn1/2b5/r2n4/1rPRN1p1/1n1bb2p/1Q2BpRq/1bQ2K1P/n7 b - - 0 1 legal: proof: f4 b5 g4 c5 a4 bxa4 d4 cxd4 f5 e6 g5 f6 Bg2 fxg5 f6 g4 Be4 Nc6 Bd3 Nb8 Bf5 exf5 e4 a5 b4 h5 c4 d5 c5 g5 e5 f4 e6 a3 e7 g3 b5 d3 b6 g2 b7 d4 Qa4+ Qd7 Nd2 a2 Bb2 h4 Qc2 f3 Qa4 Nc6 b8Q Qh3 Qd6 Bb7 Qd1 a4 Kf2 a3 Qb1 Ra6 Qd5 Nb4 Ne4 d2 Qd3 d1N+ Ke1 Nc3 Rc1 a1B Qd2 a2 Qb3 d3 Kf2 Ncd5 Ne2 Nb6 Rcg1 Nc8 Qdc2 d2 Bc1 Bb2 Nf4 a1N Ng6 Bc6 Ne5 d1N+ Ke1 Bd5 Be3 Nc3 Kf2 Nb5 Rd1 Rh6 Rhg1 Nbd6 Rd4 Bc6 Rd5 Ra5 Nc4 Rb5 f7+ Kd7 Nf6+ Ke6 Rf5 Be4 e8Q+ Be7 Qf8 Bd8 Rd5 Bc7 Ne8 Rf6 Ne5 Rg6 Qg7 Ke7 Qf6+ Kf8 Qd8 Na7 Qb8 Nac8 Qa8 Nb7 Rgd1 Ra6 Qb8 Nbd6 R1d4 Bf5 Rg4 Be4 Rg3 g1B+ Ke1 Nh6 Rd3 Nb7 Bd4 Re6 Qa4 Ke7 Qa2 Rf6 Qaa8 Ng8 f8Q+ Kd8 Qf7 Ra6 Qfc4 Ke7 Q4b3 Kf8 Bf2 Nbd6 Rd5 Qf5 Bd4 Be3 Kf1 Qh3+ Ke1 Bf4 Bg1 Be3 Bf2 Bed4 Be3 Qd7 Kf1 Qh3+ Kf2
1q3B1r/1brp1K1N/2npr2p/r1Pnb3/3P2b1/RB3bk1/2Q3B1/bQ3NB1 b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 b4 gxh4 Ra3 a5 Rd3 axb4 Rd6 cxd6 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Kd5 Kf4 d4+ e3 c4 e5 g4 b5 g5 h6 a5 h3 a6 b3 c5 b4 f3 b2 g6 h2 g7 b3 a7 e4 Bh3 Kg3 f4 e2 f5 e1R f6 e3 f7 e2 Bd2 Ne7+ Ke4 Nd5 Kf5 Nc6 Kg6 Bb7 g8B Bg7 f8B Be5 Be3 Qb8 Nd2 b1B+ Kf7 b2 Ngf3 Bf5 Bg2 b1R Bg1 Bg4 Ng5 Rb4 Qb1 Ra4 Be3 Ra5 Rg1 h1B Nh7 Qd8 Qc2 Rc8 a8Q Rc7 Qb8 Qc8 Rf1 Qd8 Bg1 Qc8 Bh3 Bhf3 Bg2 Qd8 Qa7 Qb8 Qb6 Rea1 Rb1 e1B Rb3 Rb1 Ra3 Rb3 Bf1 Re3 Qbb1 Re4 Bg2 Re2 Nc4 Bc3 Nd2 Ba1 Kg6 Nc3 Bb3 Nd5 Kf7 Bf6 Qg6 Re6 Qgc2 Be5 Nf1+
r2R1n1N/Q1b2p1b/nN4pq/3nBr1R/P3QPb1/3r2nR/1b5p/1k2KR2 b - - 0 1 illegal: No proof kernel
4bn2/3qbbKN/pnP1Qnbp/Q3r1rN/r1RN1k1B/R3p3/P7/n5N1 b - - 0 1 legal: proof: e4 c5 Ke2 d5 b4 dxe4 h4 cxb4 h5 f5 h6 f4 Rh5 f3+ Ke3 gxh6 Rh1 h5 Ba6 h4 Be2 fxe2 Kf4 Kd7 Kg5 Ke6 f4 e1N d4 b5 c4 b3 g4 b4 c5 h6+ Kg6 e3 g5 e2 c6 b2 Nd2 b1N Ba3 b3 Ndf3 b2 Qd3 h3 Bc5 h2 Bb4 Nf6 Ba5 Nd2 Rc1 b1B Rc4 Qd7 Bd8 Nc2 Qb3 e1R d5+ Kd6 f5 e5 Nd4 e4 Qe3 Ke5 d6 Be7 Kg7 Na1 g6 Re2 Qh3 Kf4 Qb3 Rg2 Qh3 Rg5 Qb3 Nd5 f6 Nb6 f7 Re8 f8N e3 Nh7 Bc2 Ra4 Bb1 Ra3 Ne4 Qg8 Nf6 Qe6 Qc7 d7 Bc2 Ngf3 Bb3 Rd1 h1B Ng1 Be4 Rc1 Bbd5 Rc4 Bc2 Qh3 Bf7 Qe6 Qd6 Bc7 Bb1 d8Q N8d7 Bb8 Nf8 Qc7 Na4 Qa5 Nb6 Bc7 Bd7 Bd8 a6 Kh8 Rb8 g7 Bbg6 g8N Nbd5 Kg7 Rb4 Rc5 Ra4 Rc4 Ne4 Ngf6 Nb6 Ng4 Qc7 Nh2 Nf6 Nf1 Bd6 Qh3 Ree5 Ng3 Bde8 Qe6 Qd7 Ne4 Nfd5 Bf6 Be7 Ng3 Rgf5 Bh4 Nf6 Qad5 Rh5 Qa5 Rhg5 Nh5+
1Qb3N1/nrR1b1r1/1N1P4/kq1q1q1Q/R3B1qp/4p2P/p5n1/1bbR1RK1 b - - 0 1 legal: proof: c4 f5 a4 d5 e4 dxc4 f4 fxe4 b3 b5 Bb2 bxa4 f5 g6 Be5 g5 Bf4 gxf4 Kf2 Kd7 g4 Kc6 d4 Kb6 h3 e5 b4 h5 b5 c5 f6 a5 f7 e3+ Kg2 e4 d5 f3+ Kh2 e2 g5 e1Q g6 c3 g7 a3 Qe2 f2 Nf3 c2 Qd1 c1Q Bg2 f1B Qa4 a2 Ng1 c4 Nf3 c3 Rg1 c2 Ng5 h4 Nc3 e3 Nd1 Rh7 Rb1 a1Q Qb3 a4 Nf3 a3 Nf2 a2 Ng4 Qe2 Nd2 Qaf6 Nh6 Ka5 b6 Ne7 g8R Qg4 b7 Ng6 Be4 Nf4 Rg7 Bd3 Ng8 Qcb2 Rgd1 Ng2 Kg1 Be7 f8R Nc6 b8Q c1B d6 Qff5 Ra1 Na7 Qf7 Bb1 Qh5 Qbb5 Rff7 Qfd5 Rf4 Qdd7 Rgf7 Q7f5 Nc4+ Ka4 Nb6+ Ka5 Rdf1 Rg7 Rd1 Bf6 Rc7 Be7 Qb7 Rb8 Qa8 Rb7 Qb8 Bc2 Rb1 Bd3 Rff1 Bc2 Rb4 Bb1 Ra4+
2k2K2/P1bq3N/3pR3/2Q1Rb1r/rnr1p3/Q2Rr2R/pN2Pbn1/4bq1B b - - 0 1 illegal: No proof kernel
QKN1R2Q/r5b1/2B1Np1N/npq1R1rn/2N2PP1/7p/1b2b1pn/q4rk1 b - - 0 1 illegal: No proof kernel
2R3N1/1b4p1/nrN1qk2/3r1n2/2Q1p1P1/qpRnN1Bp/q2rP3/2QNb2K b - - 0 2 legal: proof: h4 b5 d4 a5 b4 axb4 h5 c5 h6 cxd4 g3 f5 Nd2 f4 Nb3 f3 Bh3 Ra6 Nd2 Rxh6 Bg2 fxg2 Nb1 Rh2 c4 Kf7 f4 e5 Kf2 h5 a4 d5 f5 e4 c5 b3 g4 b2 c6 d3 c7 d4 a5 h4 a6 d2 f6 d3 a7 b4 a8Q b3 Qc6 Rh5 Ra4 Na6 Na3 b1Q Rc4 Qd6 Nc2 Qe6 Ne3 Ne7 Nh3 Rd5 Kg1 Qa2 Nf2 Nf5 Rc3 Bb4 Qc4 Bb7 c8N h3 Qf1 d1R Ne7 Rd2 Nc6 Kg6 f7 Kf6 f8N Qa3 Nfd1 Ba5 Kf2 g1Q+ Ke1 Bb4 Ng6 Rf2 Nge7 Qa2 Ba3 Qh2 Rg1 Qhd6 Rg3 Rf4 Rf3 Qc5 Kf2 Ba5 Bc1 Qca3 Kg1 Bc7 Nc2 Qe5 Nf2 Ne3 Bb2 Kg5 Qe1 Rf6 Kh1 Rd1 N6b4 Rb6 Bc1 Qe6 Qf1 d2 Rf8 Bg3 Nbc6 Nf5 Rc8 Kf6 Qg1 Re1 Qf1 d1N Bf4 Nb2 Ne3 Nd3 Qg1 Rd1 Ng8+ Kf7 Bd6 Rd2 Qc1 Kg6 Nfd1 Be1 Bg3 Kg5 Nge7 Kf6 Ng8+
1Nk1n2r/p1p1r2n/P1P5/B3br2/pR2KNNb/1qRrQ1Qr/3pb3/N7 b - - 0 2 legal: proof: e4 b5 d4 e5 h4 exd4 a4 f5 h5 fxe4 a5 g6 Bc4 gxh5 Bb3 h4 Ba4 bxa4 Kd2 d5 c4 Kd7 b4 h5 f4 d3 Ke3 d2 g4 h3 f5 h2 a6 h4 g5 h3 g6 Nf6 g7 Nh7 g8N Bd6 c5 Be5 Nh6 Qg8 Qe2 d1R b5 Rd2 b6 d4+ Kf2 d3 Ke3 Qa2 f6 Qb3 c6+ Kd8 b7 Bg4 f7 Nd7 b8N Kc8 Qf2 Be2 Na3 Ndf6 f8Q+ Ne8 Q8f4 Rf8 Qg2 Rf5 Qgg3 Rd1 Bb2 d2+ Bc3 Re1 Nd7 Rb8 Ng4 Rb5 Nb8 Rd5 Nc2 Rd7 Ra3 Rd6 Qh4 Rd3+ Kf2 e3+ Kg3 Rf7 Na1 Re7 Ba5 Rf1 Nf3 Rf2 Rb1 h1R Nd4 h2 Ne6 Rf3+ Kg2 Rh3 Qd4 Rf1 Qg3 Rf5 Nf4 h1R Qe4 Bf1+ Kf3 e2+ Qe3 e1B Ke4 Be2 Qh2 Bh4 Qhg3 Qc2 Rb4 Qb3 Ra2 Rf8 Rc2 Rh8 Rb7 Rf1 Rc3 Rf3 Rb4 Rf1 Ne6 Rf5 Nf4
8/QQ1NQbNp/1b3pr1/1n1R2kP/p1p1B1r1/rR3bb1/2b1P2Q/2q1nK2 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 f5 b5 f6 bxa4 b3 exf6 Ra3 f5 Ra1 f4 Ba3 g4 Bc5 g3 Bf2 Be7 Qc2 gxf2+ Kd1 Bb4 Kc1 Bc5 Qd1 Bf8 d4 Ke7 Kd2 Kf6 h4 a5 g4 c5 h5 f3 d5 a3 d6 a2 d7 a4 b4 c3+ Ke3 c2 b5 c1B+ Kd3 c4+ Kc2 Nh6 b6 Bd6 b7 Ra6 Bg2 f1B Qe1 f2 Kd1 Be3 Be4 Kg5 Nd2 Rg8 Rh3 Bb6 Nb3 Bg2 Qa5+ Nf5 Nd4 f1B Ke1 Bf3 Rd1 Nc6 b8Q a1R Qb7 B1g2 Rg3 Qf6 d8Q Na7 Qde7 Ra3 Rh3 Bh1 Kf1 Bg3 Rd3 Nb5 Ne6+ Kh6 Rd8 Qc3 Ng7 Be6 Rd2 Nh4 Rd5 Bd6 Rg3 Ng2 Rh3 Ne1 Rg3 Raa8 Qaa7 f6 Rh3 Be5 Rg3 Kg5 Rh3 Kf4 g5 Qc1 g6 Bf7 Rg3 Rad8 Rh3 Kg5 Rg3+ Bg4 Rb3 Bf5 Nf3+ Kh6 Qaa8 Bg3 Ne5 Kg5 Qaa7 Rd6 Nd7 Bf3 Ne8 Re6 g7 Rd6 Rdd3 Rd4 Rd1 Rf8 g8Q+ B5g6 Qg7 Rg8 Qgf8 Bf5 Ng7 B5g6 Qfb8 Bf5 Bc6 Bc2 Bd5 Rg4 Be4 Bh4 Qh2 Bg3 Nf5 Rg7 Rd5 Rg6 Ng7+
b6b/1Rpp2QN/1Np1b2b/qr2nQr1/2n2r2/6P1/3PBRKp/kbR2R2 b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 c4 gxh4 b5 a5 c5 Nh6 c6 bxc6 Ba3 Ng8 Bb4 axb4 a4 Kf7 f4 Ke6 Kf2 Kd5 f5 h5 b6 e5 b7 h3 f6 h4 a5 e3+ Kf3 h2 g3 h3 a6 b3 a7 e2 f7 Kc4 Ra5 e4+ Kf2 b2 Ra6 e3+ Kf3 Qg5 Qe1 Kb3 Bg2 Ne7 Bf1 Bh6 f8R Nd5 Ra4 Rg8 Rg4 Ka2 Rff4 Ka1 Qf2 e1R Na3 b1B Rh4 e2 Rhg4 Ne3 Rf8 Qa5 Rg6 Nc4 Rf7 Na6 b8R Nc5 Nb5 Nd3 Rb7 Rb8 Rgf6 Rg5 a8Q Rc1 Nc3 e1B Qd4 Bf2 Be2 Re1 Qe4 Bd4 Nd5 Rd1 Rf5 Bh8 Nb6 Nde5+ Kf2 Rc1 Nf3 Rc2 Rf1 h1B Rc1 h2 Rf4 Bg2 Qf5 Bh3 Rf8 Bg4 Kg2 Rb2 Qa6 Rb4 Qb5 Ra4 Qf6 Be6 Qg7 Na3 Qd3 Nc4 Qf5 Rb4 Nd4 Rb5 Rff1 Ra8 Nf3 Ra6 Rb8 Bb7 Rf2 Ba8 Rb7 Rg4 Ng5 Rf4 Nc8 Rab6 Nh7 Rc5 Rf6 Rbb5 Nb6 Ng4 Qc2 Rg5 Rf8+ Nge5 Rff1 Rd4 R8f2 Rf4 Qf5
2bBr3/3QR1p1/2B3Bp/pkp1K3/1N3rb1/1rPqn1b1/4N1P1/nbQB3n b - - 0 2 illegal: No possible last move
B2R2K1/2rp2B1/n1pRP2Q/2P2nq1/2N2kBn/1nBrQ1p1/b4p2/1nq3b1 b - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 d4 axb4 Nd2 e5 Ne4 exd4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 Ke7 a4 Kd6 e4 Ke5 c4 f5 h4 b5 a5 d3 g6 b3 h5 f3 Ke3 c6 a6 b4 a7 f2 g7 b2 h6 b1N h7 d2 Rh4 f4+ Kd3 g3 Qg4 d1N Qe2 b3 Qe3 b2 Be2 f1Q Rh6 f3 Rd6 Ne7 g8Q Na6 Bd2 Nf5 Qg6 Qg5 Qh6 Nh4 c5 Bg7 Bb4 Nd2 Ra3 Rd8 h8B Nb3 Kc4 Bf6 Bg7 b1N Ba5 Rb8 a8B Rf8 Ra2 Rb7 Rb2 Rc7 Bc3+ Nd4 Rb8 Qe1 Qf2 Kf4 e5 Nb3 e6 Bd4 Kd3 Bb7 Rd8 Ne3 Bd1 Nef5 Qe3+ Kg4 Be2 Qc1 Ke4 Bc8 Qd2 Be3 Ke5 Bf2 Qe3 Rf6 Nh3 Bg1 Nf4 Bb7 Nd5 Rf8 Bf1 f2 Nb6 Rf6 Rg8 Rf8 Nc4 Rb8 Rd8 Bc8 Na3 Rb4 Bg2 Rd4 Nc4 Rd3 Bh1 Qh5 Kf6 Qg5+ Kf7 Bb7 Qe1 Kf4 Be4 Nb4 Bh1 Ba6 Kg8 Bb5 Bf3 Na6 Ne3 Bc4 Bg4 Nbd4 Qe2 Ba2 Nc4 Nb3 Qe3+
Qq1b2N1/ppRK3Q/b3rB2/3b4/1kBnPN1p/3b4/4QnpP/q1Q2r1b b - - 0 1 illegal: No proof kernel
2b2K2/p2Q2nb/R1P1b3/3NpQ2/1p2R1bb/BRr1Pr1n/1q3p2/q2R1B1k b - - 0 1 illegal: No proof kernel
2r1n3/1BrBP3/1rpp1b2/K2RrQr1/2q2pp1/3bBN2/Qq1PN3/4Bn1k b - - 0 1 legal: proof: b4 b5 c4 bxc4 f4 h5 g4 hxg4 a4 a5 b5 e5 Ra3 exf4 Rb3 Rh6 Rb2 Rh8 Rb4 axb4 h4 Ke7 e4 Ke6 a5 Ke5 a6 f5 h5 g5 b6 g3 b7 g2 a7 f3 h6 Kf4 h7 Kg3 e5 c3 e6 f4 e7 f2+ Ke2 c2 Kd3 b3 Kc3 d6 Kb4 b2 Rh2 Nc6+ Ka4 Na5 b8B Nc4 Rh4 Bf5 Nc3 b1R Nb5 Ne3 Bd3 f1Q Rh6 Nf6 Nd4 Rb6 Bb5 Bd3 Ba3 c1R Qc2 Ne8 Bc5 Bg7 Ka5 Bf6 Ngf3 g1R Qa2 Kg2 Bd7 c6 Rh4 Re1 Ne2 Qc7 Rh5 Qb7 Bc7 Rc8 a8B Qb8 Bd8 Rc7 Bb7 Rg8 h8Q Rf8 Nh4+ Kh1 Qh7 Rh8 Qf5 Rg2 Nc3 Qe2 Bd4 Nf1 Bf2 Qe6 Ne2 Qc4 Nc3 Re4 Be1 Rf8 Ne2 Re3 Qc5 Re5 Qb5 g4 Nf3+ Rh2 Rf5 Rh5 Qd5 Re6 Qe4 Rg5 Rd5 Ree5 Qf5 Rb1 Ba6 Qb2 Bb7 Qbc1 Rc5 Rb6 Rb5 Qb2 Rd5 Rc8 Bc7 Rfg8 Bb8 Rc7 Ba7 Rb3 Qa3 Ng7 Bd4 Rgc8 Bb6 Ne8 Be3 Rb6 Qa2
4rn2/qr1kNqbR/B1r1n3/2BQ4/P1K3p1/1QB2nP1/p1p2pN1/r2b3B b - - 0 1 illegal: No proof kernel
n3rqB1/1pb3P1/bq3Q1B/5p1Q/k4R2/1p2p2n/nPB3rB/1K2bnRN b - - 0 1 illegal: No proof kernel
q1QRr3/n1KpB1P1/r1R1p1Br/kp4N1/q3Pn2/4b3/2qqbp1R/5RQ1 b - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 d4 axb4 Nd2 c5 Ne4 cxd4 g5 h6 Nf2 h5 Ng4 hxg4 Kf2 f5 a4 e6 h4 b3 e4 d3 c4 g3+ Kf3 g2 a5 d2 c5 b2 h5 b1Q h6 Ra6 g6 Ne7 c6 Qc2 h7 Bh6 g7 Ng6 c7 Nc6 Bb5 Na7 Qe2 d1Q Rh4 Qdd2 Nh3 g1Q Qe1 Qgd4 Qg1 Qda4 Be2 Ke7 Rh5 Kd6 Ba3+ Kc6 Ng5 Re8 h8R b6 Bd1 Kb5 Be7 Bb7 Rh4 Qa8 c8R Bd5 Rh1 Bc4 Rh2 Bd3 Rc6 Be2+ Kf2 f3 Kg3 f2 Rc1 Rb8 Rd8 f1R Ra1 Nf4 Rc1 Bd3 Bh5 Be2 Bg6 Rd1 Qg2 Rh1 Qg1 Nh3 Rf1 f4+ Kh4 f3 Kg4 Nf4 Kg3 Ng2 Kg4 f2+ Kg3 Ne3 Kf4 Nd5+ Ke5 Rc8 Kd6 Rb8 Nf7 Be3 Ng5 Nf4+ Kc7 Qa3 Rg2 Rh6 Rh2 Ka4 Bf8 b5 Be7 Rab6 a6 Ka5 Bd6 Qaa4 Be7 Nc8 a7 Ra6 Rc5 Qad5 a8Q Na7 Rc6 Qda2 Rf8 Re8 Qc8 Qad5 Rc4 Qa8 Rc6 Rd8 Rf6 Rg8 Rf8 Rgh8 Rd8 Rg8 Qg2 Re8 Qg1
1nK1k1r1/4N1RB/npRp1Rq1/4N3/nQrP4/R3Q3/3pPpb1/1nr1q1b1 b - - 0 1 legal: proof: h4 c5 f4 g5 b4 gxh4 f5 a5 d3 axb4 f6 c4 Qd2 c3 Qd1 exf6 Bd2 cxd2+ Kf2 f5 Rh2 f4 Rh3 Qf6 Rh1 Qd8 Kf3 h5 Ke4 f5+ Kd5 b3 g4 b2 a4 b6 c4 h3 a5 h2 g5 h4 g6 h3 c5 f3 g7 f2 a6 f4 a7 f3 c6 Bb7 Qe1 Rh4 Bg2 f1N Nc3 b1N Qf2 Ne7+ Kd6 Ne3 g8R N3d5 c7 Na6 c8R Rc4 Qe3 Rb8 a8Q f2 Na4 Ndc3 Be4 Bd5 Bf5 Bg2 Rc6 Rc8 d4 Rb8 Nc5 Na4 Nf3 Rc8 Rg1 h1Q Nb7 h2 Rg6 Bh6 Ra3 Bf4+ Ne5 Rb8 Rd1 Qe1 Na5 h1R Rf6 Bh2 Bh7 Bg1 Rc1 Qc8 Rcc3 Qb7 Rc7 Qe4 Nac6 Qg6 Rb7 N6c5 Kc7 d6 Qa5 Ra8 Ra7 Na6+ Kb7 Rd8 Qb4 Rc8 Bg8 Rh8 Bh7 Rg8 Rc1 Nd5 Rc2 Nb8 Ne7 R8c6 Rcc3 Nc7 Kc8 R6c5 Rd3 Rc1 Rdc3 Nca6+ Rc7 Ra5 R3c6 Rac5 Nd5 R5c3 Rg7 Rc4 Ne7
b1B1NBNK/n7/1r2p3/p1nrpkbb/BR2P1p1/Pq4q1/5rQ1/QB1b4 b - - 1 2 illegal: No possible last move
1R2Q1n1/B1N2p2/bq2n2r/3rpQ2/p5rQ/1qbR1p2/P3NbPK/1k2bQ2 b - - 0 1 legal: proof: f4 b5 c4 bxc4 h4 g5 e4 gxh4 Be2 e6 Bg4 e5 Be6 exf4 e5 Bb4 Bg4 Ba3 e6 Bf8 Bf5 Ke7 Bh3 Kd6 e7 Kc6 Be6 dxe6 Qa4+ Kd6 Qd1 Kd7 Kf2 Kc6 e8Q+ Kd5 d4 Ke4 b4 c5 d5 a5 b5 h5 d6 h3 b6 f3 Kg3 c3 d7 c2 b7 c4 Qf1 h2 Nh3 e5 Ba3 c1B Qg1 Kd3 Be7 Kc2 Bd6 c3 Qe3 h4+ Kf2 Bd2 Rg1 h1R Qc5 Nc6 b8Q Nd4 Qcc7 Rh6 Nf4 h3 Kg3 h2 Qe7 Ne6 Qh4 Ra7 Qb5 a4 Qg4 Ra5 Rd1 Ba6 Bc5 Re1 Qe2 h1Q Ba7 Bb4 Qcc4 Bc5 Qf2 Re4 Nd5 Qe1 Qb4 Qe3 Qf1 Qd3 Qh5 Be1+ Kh2 Bcf2 Qh3 Qb8 Nc7 Rd5 d8Q Qd4 Qhh4 Rg4 Qe8 Qd3 Qe4 Kb2 Bc5 c2 Ba7 c1B Qf5 Bcd2 Nc3 Qdb5 Ne2 Bc3 Rd3 Qa5 Rc1 Qbb5 Rc2+ Kb1 Rcd2 Qb2 Rd4+ Qc2 R2d3 Qb3 Rb4 Qc5 Rb7 Qcb6 Rb8
2Q1q1q1/rrp1pB1p/k4RQQ/5b2/N1nbP3/2nR3p/4Q1PB/K2bq2q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 d5 h5 dxc4 h6 f4 Nc3 gxh6 Nd5 h5 Ne3 fxe3 Qc2 h4 Qa4+ Bd7 Qd1 Bc8 a4 Kd7 d4 Kc6 f4 Kb6 f5 h3 a5+ Ka6 f6 b5 d5 e2 Kd2 e1Q+ Kc2 c3 Kb1 c2+ Kb2 b3 d6 Bg7 d7 Qe8 d8Q Ra7 Q1d6+ Nc6 Bc4 Bf5 Bf7 b4 Ne2 Rb7 Qd1 Ne5 Ra3 Nc4+ Ka1 Qg3 Nc3 b2+ Ka2 b1B+ Ka1 b3 Bf4 c1Q Na4 Qe1 Bh2 Qg5 Rf1 Bc2 Qc8 Qgg3 Rf3 Qh1 Qf1 Bd1 Qe2 b2+ Ka2 Nh6 Rad3 Ng4 Kb1 Nf2 Rf4 Kb5 a6 Rf8 a7 Ka6 Rff3 Bh8 Rf4 Qg8 a8Q+ Kb5 Qab8 Ka6 Bg6 Bg7 f7 Bd4 Rff3 Ng4 Rf2 Nf6 Rf1 Nd5 Qe6+ Qc6 Qbc8 Rd8 f8Q Rd6 Rdf3 Qe8 Rd3 Rc6 Qh6 Rb6 Qa8+ Ra7 Qf7 Rb7 Qc8 Ncb6 Ka2 Nc4 Qf6+ Ncb6 Bf7 b1Q+ Ka3 Qb4+ Ka2 Qe1 Qfg6 Nc3+ Ka1 Qh8 Be6 Qhg8 Rff3 Nc4 Rf4 Bg4 Rf6 Bf5 Bf7+
3N1bn1/1P1pq1r1/1K1BB2Q/n1p1R1Q1/3Pp2r/pB5b/2N1nk2/2n1Bqr1 b - - 0 1 illegal: No proof kernel
N1Q3r1/7p/q1n1BR2/pQn2p1p/1bn1p2b/3N3N/N3bPPK/B1r1k1r1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 b4 d5 h5 dxe4 b5 g6 Ra3 gxh5 Rb3 Bg7 Rb2 Bf8 Rb4 cxb4 d4 Kd7 c4 Kd6 c5+ Kd5 c6 f5 b6 a5 b7 e5 c7 b3 Ke2 Kc4 d5 b2 d6 e3 Kf3+ e2 Kg3 a3 d7 a2 Be3 a1B Qd6 e4 Qd2 Na6 b8Q Qf6 d8N Bb4 Nh3 Nc5 Ne6 Ne7 Kh2 Nc6 Nc3 b1N Nef4 Ba6 c8N Na3 Bd4 Rg8 Nd3 e1R Qc1 Qh6 Be2 Rg1 Nb6+ Kb3 Na2 Nc4 Qe5 Rac8 Na8 Qf6 Qb8 Bb2 Qf1 Kc2 Be5 Rc7 Qc8 Kd2 Qb1 B2a3 Ba1 Qg6 Bd1 Bb2 Bb3 Bf6 Qf1 Bh4 Qb1 Ne3 Be6 Qh6 Ndf4 Be2 Nd3 Nc4 Qb3 Rb1 Rc1 Qg6 Rc3 Rg1 Qa4 Qf6 Qb5 Qg6 Ne5 Ke1 Rb3 Rd7 Rg3 Rd1 Rg4 Qf6 Rg6 Rc1 Rh6 Qg7 Rg6 Qb7 Rf6 Qa6 Nd3+
3nr3/2Ppbq1Q/nk3R2/1pB1r2Q/rBnPpN2/5p2/2pBb1B1/N3K1b1 b - - 0 1 illegal: No proof kernel
B2brn1R/1b2pP2/2R1Prn1/1Qq2p2/RQpkn1b1/2p4R/2NN1p1q/5K2 b - - 0 1 illegal: No proof kernel
n3bR2/Pkp1N3/1p2p1q1/rr4rR/2q1bpQQ/p1n1P2B/3KNbRR/8 b - - 0 1 illegal: No proof kernel
1kbrnQN1/5N2/1Rp2p2/1PK5/pr1N1nR1/r2Qpbb1/p2qP1N1/r1B5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 d5 f5 dxc4 Bh3 g6 g5 gxf5 Bg4 hxg4 Ra2 f4 Ra3 Be6 Ra1 Bc8 Kf2 Kd7 b4 a5 h4 e5 d4 g3+ Kf3 e4+ Kg2 f6 g6 c3 b5 c2 g7 e3 Kf3 g2 Ke4 f3 Kd5 f2 h5 f1B h6 a3 h7 a2 Nh3 g1R Rh2 Ne7+ Kc5 c6 g8N Kc7 d5 Rg4 Na3 Rb4 Qd3 Bg2 Nf4 Bf3 Ng2 Ng6+ d6+ Kb7 Rh6 Nf4 Rh4 Bh6 d7 Na6+ Kd6 Nc7 Kc5 Ra6 Rg4 Ka8 Rb1 Kb8 Rb3 Ne8 Rc3 Bg5 Rc4 Bh4 Rd4 Qc7 d8N Qd7 Nf7 Bg3 Re4 Ra8 Re7 Qd8 Ra7 Qd7 Ra6 Ra7 Bd2 c1R+ Nc2 Ra1 Bc1 Qd8 Qc4 Qd2 Qd3 a4 Nd4 Rd7 Ne7 Rg8 h8Q Rd8 Qh6 Rb3 Qg7 Ra3 Qf8 Rh8 Ng8 Rh1 Bb2 Rhb1 Bc1 Rb4 Rb6+
1b1RQ2K/1k1p4/2N1nnq1/2pr4/ppP1p1Q1/PN2BbN1/6bb/Rr3r1N b - - 0 2 legal: proof: e4 f5 d4 h5 b4 e5 g4 hxg4 b5 exd4 e5 Ba3 Bg2 Bb2 Be4 fxe4 b6 Rh6 Qd3 Rxb6 Qe2 Rh6 Qd1 Rh8 Kd2 b5 f4 g5 h4 a5 h5 c5 f5 a4 h6 g3 f6 g2 h7 b4 a3 g4 e6 d3 Ke3 g3 Kf4 d2 Kg5 Qb6 Kg6 Kd8 Kg7 Kc7 e7 Nc6 e8N+ Kb7 Nh3 g1R Nf2 g2 Qg4 d1B Be3 Be5 Nd2 Bb8 f7 Nd8 f8N Bf3 Ng6 Rb1 Nf6 g1B Ne7 Bgh2 Nh5 Nf6 Ng3 Rf8 h8Q Ra6 Qg8 Ne6+ Kh8 Qd6 Nb3 Rb6 Nh5 Qg3 c3 Rd6 Nc6 Rd5 Rf1 Rf7 Qe8 Qg1 Nh1 Qg2 Qf5 Qg6 Rg1 Kb6 Rg5 Ba6 Qg4 Bf1 c4 Kb7 N5g3 B1g2 Rh5 Ng8 Rh7 Rff5 Rg7 Nf6 Rf7 Be2 Rf8 Rff1 Qf7 Bd1 Rd8 Bdf3 Qe8
1r3rn1/1n1p1P2/1pq2b2/p3b2K/QpB1N3/B2B3Q/1Prbp3/2B1RbkR b - - 0 1 illegal: No proof kernel
1Nr4r/RBp2n2/RR1bQp1k/8/bqPp3n/3bP1pK/3Rp1nN/Q6n b - - 0 1 illegal: No proof kernel
nQ6/r2bBp2/N4P1n/p1p5/1qkr1q2/P1NQ1R1r/2rpBp1b/4Q1QK b - - 1 2 illegal: No possible last move
3b2nr/R1R1q3/Np1pk3/4p3/pR4K1/P1r4Q/Bq1Pprb1/1rN2RQn b - - 0 2 legal: proof: f4 c5 g4 g5 b4 cxb4 e4 f5 Bb2 fxe4 Bf6 gxf4 g5 h6 g6 Rh7 Bh4 Rh8 Bg5 hxg5 Kf2 e5 c4 Ke7 h4 a5 h5 d6 g7 b6 a3 a4 c5 f3 Kg3 g4 h6 f2 h7 b3 c6 e3 c7 b2 Bh3 f1R Kh4 g3 Bd7 e2 Bh3 g2 Bf5 Na6 Nf3 g1R Nc3 b1Q Ne4 Bb7 c8R Nc5 Ne1 Nd3 Be6 Nf6 g8R Nf2 Nc5 Bg2 Rg4 Qb2 Ned3 Rg8 Rb4 Rg3 h8Q Qe8 Rh2 Nh1 Ba2 Rf2 Na6 Rgf3 Rcc4 Ke6 Kg5 Be7 Rh7 Rh3 Rf7 Rc8 Qe1 Bd8 Ra7 Ng8+ Kg4 Rc7 Qh5 Rh7 Rac1 Re3 Qh3 Qe7 Qf1 Rh8 Rcc7+ Bd5+ Qfg2 Re1 Qg1 Ref3 R1c5 Rb1 Rc1 Re3 Rd1 Ref3 Nc1 Rc3 Rbc4 Bc6 Rf1 Bg2 Rb4+
2B1r1Q1/k3qp2/b1p2q2/1PP1n1B1/2np2Q1/pK1pp1R1/1Np1R3/3rQQb1 b - - 0 1 illegal: No proof kernel
qR2nB2/r1p2b1N/Qpp1pQQb/4kp2/4Ppp1/6nr/2P2pK1/1NR3Q1 b - - 1 2 illegal: Other
4KN2/2krN1P1/1B4n1/4N1qB/2rR1nnp/1n1pqPN1/1qr1bn1R/2N5 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Bc4 g4 Ba6 fxe6 Bd3 e5 Bf1 e4 h4 Ra4 Qf3 Ra8 Kd1 g3 Qe3 Ra3 f3 Ra8 Qf2 gxf2 g4 Bh6 g5 Qc7 g6 Bg5 hxg5 Qd8 Kd2 b5 c4 e5 a4 d5 g7 Kd7 g6 h5 a5 b3 a6 e3+ Kd3 e4+ Ke2 d3+ Kd1 b2 c5 h4 c6+ Kc7 a7 d4 Ra6 e2+ Kd2 e1N Nc3 b1N+ Kd1 e3 Bh3 f1R Ra5 d2 Ke2 d1N Ra4 b4 Rh2 b3 Na2 b2 Bg4 Qg5 Bh5 Nf6 g8N Ng2 Kd3 e2 Kc4 e1Q g7 Ng4 Ne7 Qee3 Ng6 Nf4 Nf8 Rf2 Ne2 Nd7 Ng3 Nde5+ Kc5 Ba6 Rc4 Rc8 a8N+ Kd8 Kd6 Rc2 Nb6 Ndf2 Rb4 Neg6 Nc4 Nd2 Ne5 b1Q Bb2 Rg8 Nc1 Nb3 Bc3 Be2 c7+ Ke8 Bb2 d3 Bd4 Qb2 Bb6 Rh8 Rc4 Rd8+ Kc6 Rd7 c8N Rg8 Ba7 Kd8 Ne7 Rc7+ Kd6 Rc5 Rd4 R5c4 Nd5 Kc8 Ne7+ Kb7 Kd7 Rh8 Ke8 Kc7 Kf7 Rg8 Nfd7 Rb8 Nf8 Rd8 Bc5 Rd6 Ke8 Rd7 Bb6+
q5nK/qR1k3N/1Bn3qq/3r1b1q/1P3qqB/1pp5/2NrB2P/R2BB3 b - - 0 1 legal: proof: g4 a5 b4 axb4 e4 f5 g5 fxe4 c3 b3 g6 hxg6 Bb5 g5 Bf1 g4 Ne2 d5 Bg2 b5 Qc2 b2 Bh3 e6 Ng1 b4 Bf1 b3 Qd3 Bb4 Qc4 dxc4 cxb4 Ra4 Nf3 Ra5 Ng1 Ra8 Ke2 c5 Ke3 g5 a4 g3 d4 e5 f4 g4 d5 c3 f5 c4 d6 c2 f6 g2 f7+ Kd7 f8B c3 a5 g3 a6 Rh5 a7 Nc6 Nf3 g1Q+ Ke2 e3 Kd3 e2 Ke4 e1Q+ Be2 g2 Ng5 Qh4+ Kf5 e4 Kg6 e3 Kg7 Qf4 Bd2 c1Q Nh7 Rd5 Na3 b1Q Be1 Qg6+ Kh8 Rb8 Bd1 e2 a8B Qa7 Rf1 g1Q Nc2 Q1g4 Be7 Qfh6 Rf6 Qcf4 Rf7 Rbb5 Bb7 Rd2 Ba6 Rbd5 Rg7 Qdf8 Bc4 Q8f5 Rf7 Qfh5 B7h4+ Ke8 Ba6 Bf5 Re7+ Kd8 d7 Kc7 d8B+ Kd6 Re8 Kd7 Bb6 Qa8 Rb8 Qa7 Bef2 e1Q Bae2 Qh1 Be1 Qhe4 Bc7 Qee8 Rb7 Qea8 Bb6+
bbr2B2/1N1N1b1B/k2pN1r1/n1N5/Rrp1P1N1/n1KR4/2Pp1qr1/n7 b - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 b4 fxg4 Qd2 a5 Qd1 axb4 Nd2 h5 Nb1 h4 Qd3 Na6 Qf3 Nb8 Qg3 hxg3 Kd2 g5 e4 c5 f4 d3 h4 g2 h5 g3 f5 g4 b6 b3 h6 b2 h7 Qh4 f6 Kd8 f7 Ra4 b7 Kc7 Ra2 Kb6 Rh3 Nc6 b8N Nd4 Nc6 Ne7 Nb8 Bb7 Ra1 Nb3+ Kc3 d2 Rh2 Nc6 Ra2 Ba8 Na3 b1B Bc4 Rb4 Kb2 Nca5 Kc3 Na1 Be6 Bd6 Nb5 Rc8 Ra4 Ba2 Nf3 g1R h8N g2 f8N g3 Bg8 Bf7 Nbd4 c4 Rh3 Bc7 Bh7 d6 Nbd7+ Ka6 Nh2 Bb8 Bb2 Qf4 Nb3 Qf2 Nb6 Rb1 Ng4 g1R Ne6 g2 Rd3 Rbe1 Ba3 Re3 Bb2 Rg3 Nh6 Rg6 Ng4 Rc1 Nd7 g1N Re3 Nf3 Rd3 Be8 Nf7 Rg1 Nfd8 Rg2 Nb7 Bf7 Bc1 Nd4 Ba3 Rb6 Bc5 Rb5 Bb6 Rb4 Bd8 Qe2 Be7 Qf2 Bf8 Nb5+ Kb2 Na3 Kc3 Rg8 Ned8 Rg5 Ne6 Rg6 N3c5+
n1R2Bq1/2P2R2/2RR1rb1/b1n4N/pRk3K1/p4pP1/1b1Brbb1/2N2q2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 g5 e4 b5 f5 bxa4 g3 h5 Bg2 h4 Qg4 h3 e5 hxg2 Qf4 f6 exf6 gxf4 Kf2 Kf7 Kf3 a5 c4 e5 h4 d5 b4 a3 c5 a4 h5 d3 b5 e4+ Kg4 d2 h6 d1Q+ Kh4 e3 c6 d4 b6 e2 b7 e1B h7 d3 c7 f3 Be3 d2 Kh5 Bg7 Kg5 Na6 b8R Ne7 Nh3 g1B Ra2 Bgf2 Rb5 Rf8 h8R Nc5 Rc2 Nd5 Nc3 Nb6 Ne2 Qb1 Rc4 d1B Kg4 Bc2 Nhf4 Ba5 Rbb4 Qf1 Nh5 Re8 Bg5 Ra6 Nc1 Re2 Bd2 Na8 Rd4 Qg8 Rd6 Ke8 f7+ Ke7 f8R Bb2+ Ng7 Bb1 R1h6 Bc2 Rc6 Kd7 f6 Bg6 f7 Ke7+ Kg5 Bh3 Nh5 Bg2 Kg4 Kd7 Rc8 Ke7 f8B+ Kf7 Bd6 Ke6 Bf8+ Kd5 R8h7 Rb6 Rf7 Ra6 Rff6 Rb6 Rh7 Ra6 Rhf7 Rb6 Rb5 Kc4 Rfd6 Bac3 Rd3 Re7 Rcf6 Ba5 Rbb3 Rbe6 Rb7 Re2 Rc6 R7e6 Rdd6 Rf6 Rb4+
4b3/1bq3B1/2B2R1p/3pB3/1k1N1n1R/P2rBrnp/B1qN3P/b3Kbn1 b - - 0 1 illegal: No possible last move, all moves rejected
4KBB1/2pR4/pN1p2n1/2knPRr1/n1rB3q/4b3/n4P2/B1NqqrB1 b - - 0 1 legal: proof: e4 e5 b4 h5 g4 hxg4 c4 b5 a4 bxa4 d4 f6 b5 Ba6 b6 Bb5 cxb5 exd4 e5 f5 Qc2 Be7 Qe2 Bf8 Qe4 fxe4 Kd2 g5 h4 g3 b7 a3 b6 g4 h5 a6 h6 a2 h7 g2 Rh2 e3+ Kd3 g3 Ke4 d3 Kd5 e2 Nd2 e1Q Ndf3 d6 Ke6 d2 Rh5 d1Q Rf5 Nf6 Bc4 Bh6 Bf4 Nbd7 b8B Nd5 b7 Qh4 Ba7 N7b6 b8B Na4 Ne2 g1N Bd4 g2 Bh2 Be3 Bba7 Nh3 Nc1 g1N Nd2 Ne2 Bg1 Nec3 Bac5 Rg8 h8B Rg5 Bg7 Rb8 Bf8 Rb4 Bb6 Kd8 Kf7 Kd7 Bb3 Kc6 Nc4 Kb5 Ke8 Nhf4 Bbc5 Kc6 Nb6 Rc4 Ba3 Ng6 Bb2 Rb4 Rb1 a1R Bc4 Na2 Bb3 Ndc3 Bg8 Nd5 Bbc3 Rc4 Rb3 Rb1 Ba1 Bd2 Rbf3 Be3 Bdc3 Kc5 Rf7 Rb2 Rd7 Rd2 Rf5 Rdd4 Bh2 Rdg4 Bcb2 Rg1 Bc3 Rf1 Bg1 Qh6 Bcb2 Qh4 Bd4+
bn1bRn2/8/N1BB1n2/1Pp1bq2/3rN3/1NPqkn1R/Nr5n/n1K1N1n1 b - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 g5 bxa4 g6 f5 Nh3 f4 Qf3 hxg6 Qa3 g5 Ng1 g4 Qg3 fxg3 Kd1 Kd7 f4 Ke6 h4 Kf5 b4 c5 d4 g5 h5 e5 b5 a5 d5 a3 d6 e3 h6 Ke4 h7 g2 d7 a4 f5 e2+ Kd2 e1N f6 g3 f7 a2 Rh2 g4 Ba3 Be7 f8N Nd3 Nh3 g1Q Rf2 g2 Rf7 g3 Ne6 Bb7 Nc7 Nf4 Na6 Nf6 Rg7 Qf2+ Kc1 g1N Bc4 g2 Be6 Nf3 Bc4 g1N Ng5+ Ke3 Bb2 e4 Be5 a3 Bd5 Ng6 Bd6 Nh2 Rg8 Nf8 Bc6 Qf5 Nc3 Ra7 Rb1 a1N Na2 Ba8 Nf3 Rc7 Rg3 Rg8 Rh3 Rg2 h8N Rf2 N2b4 a2 Nf7 Ra7 N7g5 Re2 Nc7 Ra4 Nca6 Rd2 Rb2 Rd4 Rb1 Ra3 Rb2 Rb3 Rb1 Rb2 Ne1+ Kf2 Ra3 e3 Ne4+ Ke2 Rb3 Qc8 d8N Qcd7 Nb7 Bd8 Na5 Qdh7 Nd2 Qd3 Rc3 Qhf5 Ra3 Kf2 Nab3 e2 Ne4+ Ke3 Nf3 e1B c3 Bg3 Ne1 Nc2 Ra5 a1N Na2 Rd5 Ra3 Nd4 Ra4 Ndf3 Rd4 Re5 Rd5 Re7 Re5 Rd7 Re8 Be5 Bc7 Rd4 Bd6 Rf2 Rb2 Rf1 Rg2 Rf2 Rg3 Rb2 Rh3
n2qb2r/1p4bN/2Bn1R2/2B3nB/1P4b1/1B2k2p/P2RnN2/B1qrr1nK b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 d5 gxh4 d6 a4 Qd3 cxd6 Ba3 d5 Bc1 d4 Qb3 axb3 g4 Kf7 f4 Kf6 Kf2 d5 Kg2 e5 c4 h5 f5 b2 c5 e3 c6 Kg5 f6 Kf4 c7 h3+ Kh2 d3 g5 d4 f7 h4 g6 d2 g7 d1Q Ba6 e4 Nd2 b1N Nc4 d3 Bb2 e2 Bc3 e1N Nd2 e3 Bb2 e2 Bc1 Nh6 g8B Nc3 Bh7 Nf5 Bc4 Nd6 Bg8 Nd7 Ne4+ d2 Nf2 Bg7 f8B Nb6 Bge6 Ke3 Bf7 Bg4 Bb2 Qc1 c8B d1R Bd7 Rb8 Bde8 Na8 Nf3 Rc8 Kg1 Rc7 Ng5 Re7 Kh2 Re6 Rf1 Nf3+ Kh1 e1N Bc6 h2 Rb1 Ng1 Nh7 Nce2 Ba1 Nef3 Bh5 Ng5 Bb3 Re8 Rb2 Re4 Rd2 Re6 Kg2 h1B+ Kh2 h3 Rd4 Bd5 Be7 Re4 Kh1 Bf7 Bf8 Be8 Be7 Nc8 Bc5 Re6 Nd3 Re5 Rf6 Nd6 Nf2 Rf5 Nd3 Rff1 Nf2 Rfe1 Rd2+
2N5/2bB2N1/r1qn1NKP/bp2r1N1/rR1p4/1N2B1k1/1P1b3q/n1Rn2nb b - - 0 1 illegal: No proof kernel
r5RB/3pRq2/1R2q2k/pp3B2/b3nbq1/Kbn2nPR/2rPN3/1R1bN3 b - - 0 1 illegal: No possible last move
qN1R2kb/p1N5/3qN3/pqqr1p2/Pq2N2K/3P1r2/2npR1bN/nBB5 b - - 0 1 illegal: No proof kernel
n2B3r/1B3RB1/B1pnP1K1/RN6/2q1Nbb1/b1PB4/p2bp2p/rk1r1r2 b - - 0 1 illegal: No possible last move, all moves rejected
K1R3N1/1rb5/npr1p2N/2N3Pp/1qq2pbP/k3N3/pNn5/B1rB1n1R b - - 0 1 legal: proof: e4 g5 a4 d5 f4 gxf4 b4 dxe4 b5 Kd7 a5 Ke8 Qg4 b6 Qe6 bxa5 b6 a4 b7 Qd7 Qf6 Qd8 Qb6 cxb6 Ke2 Kd7 h4 Kc6 c4 Kc5 d4+ Kb4 g4 a5 g5 f5 d5 h5 c5 a3 d6 e3 Kd3 a2 Kd4 a4 Kd5 f3 c6 a3 c7 f4 d7 e2 Bb2 e1R Nd2 f2 Nh3 Nh6 Rc1 a1N Nc4 a2 Be2 f1Q Bd1 Ra7 Ne3 Ng4 Nf2 Nc2 Ba1 Ka3 Nd3 Na6 Kc6 Nh2 b8N Rb7 Nb2 Qd3 Rb1 Bg7 Rc1 Qf8 d8N Nf1 Nd7 Be5 Nc5 Bg4 c8N e6 Ne7 Qc4 Nf7 Bc7 Ng8 Rh7 Kd7 Qd6+ Kc8 Qd2 Nfh6 Qdb4 Bf3 Rd7 Be2 Rd6 Bd1 Ra7 Nef5 Rc6 Ne3 Ra8+ Kb7 Rb8+ Ka7 Rb7+ Ka8 Nd4 Be2 Rd1 Rc2 Rb1 Bd1 Rc1 Rd2 Nc2 Rd8 Qd4 Re8 Qdc4 Rc8
n1rN2k1/4RqR1/3B4/1nq1Nbr1/1b6/1NBqbbP1/2Pr2p1/K2B1N1b b - - 0 1 legal: proof: d4 e5 f4 exf4 h4 g5 a4 gxh4 g3 b5 axb5 c5 Qd3 cxd4 Qf5 f3 Qh3 Qf6 Qh2 Qd8 Qg2 fxg2 Kd1 f5 e4 Kf7 b4 d5 e5 a5 b6 h5 b7 h3 b5 d3 b6 f4 Bd2 a4 Kc1 f3 Kb2 h2 Ra2 d4 Be1 h4 Nc3 h3 Nge2 f2 Nd5 a3+ Ka1 d2 Ne3 d1B Nf5 d3 Ng7 d2 Rb2 a2 Nh5 Bb4 Ng7 Qd3 Rg1 h1Q Nf5 h2 Nc1 Nf6 e6+ Kg8 e7 Nbd7 e8N Bf3 b8B d1R b7 Ne4 Ned6 Nc3 Be2 f1Q Nf7 Ra5 Ne5 Nb5 Bd6 Nb6 b8N Rd2 Nb3 Na8 Ne3 Bf5 Bd1 Qf2 Rf1 Qhg1 Nbc6 h1B Rb1 Nac7 Nd8 Na8 N3c4 Qa7 Ne3 Qg7 Rf2 Qf7 Re2 Qf2 Nf1 Qc5 Ndc6 Rh5 Nd8 Rg5 Re4 Ra6 Rh4 Rc6 Rh7 Rc8 Rc1 Rf2 Bc3 Rd2 Kb2 a1B+ Kb1 Bb2 Ka2 B2a3 Ka1 B5e4 Rb1 Bc1 Rb2 Bg6 Ra2 Bf5 Ra7 Rf2 Rb7 Be3 Re7 Rd2 Rg7+
6bq/2N2NB1/rP1b1P1N/qn1nBK2/1Bkp1Rrr/B1n5/3b3r/2R2r2 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 h5 axb5 hxg4 Bh3 c6 Bf1 c5 c4 Na6 b6 Bb7 d5 Nb8 Qd4 cxd4 c5 Bc6 Bb5 Bb7 c6 Ba6 c7 Bc8 Bc6 dxc6 Kd2 Kf7 h4 g5 b4 a5 f4 e5 f5 g3 d6 e3+ Kd3 e2 Ke4 e1Q+ Be3 c5 b5 c4 h5 g4 f6 Ke6 d7 g2 h6 g3 h7 c3 b7 c2 b6 c1N Ne2 g1R Ra3 a4 Rh2 g2 Nd2 Ra6 Bf4 Nc6 b8B Nge7 Rah3 a3 Nf1 a2 Bg5 a1R Ne3 Rf1 Rg3 g1R Bh6 R1a2 Rh4 Na7 Nf5 Qa5 Nc3 Ne2 Rf4 Nd5 Nb5 Bd6 Rc3 Rg4 Bf8 Rb2 Rc1 Nec3+ Kd3 Qe8 d8B Rh2 Bde7 Qh5 Nh6 e4+ Kc4 e3 Kd3 Bd7 c8N e2 Bc7 e1B Bb8 Rhg8 h8B Bd2 Bhg7 Rh8 Nc7+ Ke5 Ne8 Be6 Nc7 Ba3 Bc5 Nab5 Bb4 Bg8 Nd6 Qe8 Na8 Rh7 Ndf7+ Ke6 Be5 Rh8 Nf5 R8h4 N5h6 Na2 Bc3 Bd6 Bb4 Nac3 Ba3 Kd7 Nc7 Kc6 Bb2 Kc5 Be7 Kb4 Ba3+ Kb3 Bb4 Na4 Ke4 Nac3+ Kf5 Kc4 Ba3 Qa8 Ne8 Bc7 Beb4 Bd6 Nc7 Qe8 Ng5 Qh5 Nf7 Qh8 Nh6 Bc5 Ngf7 Bf8 Ng5 Bd6 Ngf7
3R2r1/qb3p1R/1bb3kr/P5Br/Nn1B1N2/1K2B3/1n1P4/qbNn1N1q b - - 0 1 legal: proof: g4 g5 b4 h5 c4 e5 f4 d5 cxd5 a5 Qb3 axb4 Bh3 e4 Qf3 gxf4 g5 exf3 Bg4 hxg4 Kd1 b5 Kc2 c5 a4 c4 h4 g3 e4 g2 g6 c3 d6 b3+ Kd1 b2 Kc2 f2 a5 f1R d7+ Ke7 g7 Kf6 e5+ Kg6 e6 b4 e7 b3+ Kd3 c2 Kc4 f3 e8N f2 Nd6 Ne7 g8N Bb7 Kb4 Qc7 d8B Nf5 Ra3 Ne3 Bg5 Rh5 Nf6 Nd1 Nc3 b1B Nge2 g1Q Nfd5 b2 Kb3 Nc6 Nc4 Nb4 Nce3 Bc5 Na4 Rg8 Rh3 Re1 Nf1 Qh1 Rh2 Bb6 Ndf4+ Kf5 Rh3 Qb8 Rd3 Qa7 Rd8 Rh6 h5 Bc6 Nh2 f1B Ra1 Bfg2 Nf1 Bb7 Ra3 Bgc6 Ra1 Rf6 h6 Rfg6 h7 Rh6 h8B Rh5 Nec3 Re6 Bd4 Rd6 Be3 Rdh6 Nfd5 Kg6 Ne2 Ba2+ Ka3 b1Q Bb2 c1N Bbd4 Ncd3 Nc1 Qc2 Rb1 Qc3+ Rb3 Qa1 Nf4+ Kf5 Rc3 Bb1+ Kb3 N3b2 Rd3 Rgg6 Rh8 Rg7 Rh7 Rg8 Bdf6 Be4 Rd8 Bec6 Ng2 Kg6 Bc3 Nc2 Bcd4 Nb4 Nf4+
1nN4n/4n1bR/1p6/6B1/kbNP2q1/1r4rP/Bb2N1rb/2rBNKbR b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 f5 Qc2 h5 Ng1 f3 Qe4+ Be6 Qf4 Bd7 Qg5 f4 Qh4 Bf5 gxf5 Qc8 Qg3 Qd8 Qg4 hxg4 e4 Kd7 d4 Kc6 a4 g5 f6 f2+ Ke2 b6 a5 Kb5 e5 c5 f7 f3+ Kd2 b3 h3 b2 e6 g3 e7 g2 e8N g4 a6 g3 a7 Qd7 Ra2 Qg4 Ra1 Nh6 Nf6 Bg7 f8N Nf7 N8h7 Rg8 Bd3 f1R Ke3 f2 Ra6 Nh8 Bd2 Rc1 Ba5 Ka4 Nd2 b1R Nb3 c3 Nf8 c2 Nd2 c4 Nfe4 c3 Ndf3 f1N+ Ke2 Ne3 Nd6 Rb3 Nc4 Nd5 Ng6 Ne7 Be4 Qg5 Ne1 Qg4+ Ngf3 g1B Bd5 Bh2 Kf1 Rd1 Bf7 c1B Ng1 c2 Ne2 Ba3 Bd5 c1B Bd2+ Kb5 Be6 Bcb2 Bg5 Rc1 Ra5+ Kb4 Rc5 Ka4 Rc7 Bb4 Bd5 Nd7 Bf7 Rad8 a8B Nb8 Be4 Rdf8 Bc2 Rc8 Bd1 g2+ Kf2 g1B+ Kf1 Rc3 Bd5 Rg3 Rd7 Nf5 Ne7 Rc7 Nc8 Ne7 Nd2 Rc1 Nc4 Bf8 Be4 Rg6 Bb1 Bg7 Ba2 Rc6 Ne5 R6c2 Nc4 Rd2 Rd6 Rdc2 Rh6 Rd2 Rh7 Rdc2 Nf4 Rcg2 Ne2
B1bB1n1N/3P2KN/3nr2R/4R3/Rr1k2P1/bp1qN3/Nn1rrb2/4r2b b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Qb3 exf4 Qa3 bxa3 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 g4 h5 e4 f5 d6 h3 d3 b4 a5 b3 d7 f3 a6 h2 a7 a2 Bg5 h4 Bc1 f4 Na3 f2 Rb1 a1B+ Rb2 f3 Nc4 h3 Be2 f1R Bf4 f2 Bg3 Re1 Ne3 f1R Nc2 Rf2 Bf3 Rd2 Ne2 Nh6 Nc3 Ree2 Bh4 Nf5 Ne3 Rh6 Na2 Nd6 Re1 h1R d4+ Kb6 d5 Kc5 Bf6 h2 Ke6 c6 e5 Kd4 Rbb1 c5 Be4 Ne8 Kf7 c4 d6 c3 Bh4 c2 e6 c1N e7 Re6 Bd5 Nc7 e8N Nb5 Nf6 Nd3 Nh7 Nb2 Bg2 Be7 Kg7 Rf1 Rbc1 h1B Rc5 Rg1 Re5 Rf1 Rc1 Rfd1 Rc6 Rde1 Bg3 Bh4 Bf4 Bf2 Bg5 Qa5 d8N Qa6 Bd5 Nd7 Nf7 Nf8 d7 Rb8 a8R Nd6 Bd8 Qd3 Nh8 Rb4 Raa6 Na4 Rcb6 Bb2 Ba8 Ba3 Raa5 Nb2 Ra4 Bhb7 Rbb5 Bd5 Rh5 Bg2 Rbe5 Bh1 Rh6
B2qN2B/5bR1/1q4nN/2bnRPP1/1N4br/qqb5/nR2p2k/K1R1r3 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 c5 a4 cxd4 b5 f5 Qd2 fxe4 Qb4 axb4 a5 b6 axb6 Ra7 Rh2 Ra5 Rh1 Ra8 Kd2 Kf7 c4 Kg6 Kc2 Kf5 Kb2 Kg4 f4 Kg3 b7 d5 b6 h5 c5 e5 c6 e3 c7 e2 Be3 e1B Nd2 d3 Rc1 d4 Rc4 e4 Nb1 d2 Nh3 d1N+ Kb3 d3 Rh2 d2 Na3 Bc5 Ka2 b3+ Ka1 b2+ Ka2 Na6 b8N Bg4 c8R Nc7 f5 Nd5 b7 N1c3+ Kb3 d1Q+ Nc2 Nge7 Ra4 Ng6 Nf2 h3 Ra7 h4 Be2 Na2 Na6 Bc3 Bd4 e3 b8R b1B Rh1 h2 Nc7 h3 Bf3 e2 Ne8 Rh4 Bh8 Qd4 Rf1 h1Q Rc1 h2 Rg7 Qhd1 Rcc7 h1Q Rce7 Kh2 Re5 Q1d3 Nb4 Qa6 g3 Qdd3 Bg2 Qab6 Be4 Qhf3 Rbb7 Bd2+ Kb2 Qa3+ Ka1 Qfb3 Rb8 Bd3 Bh1 Bc4 Be4 Bh3 g4 Ra4 g5 Bg4 Rc2 Ra7 Rb2 Bc3 Rc8 Ne3 Ba8 Bf7 Ne4 Rd7 N4f6 Nd5 Ng8 Ra7 Nh6 Ra4 Nc2 Rf4 Rc6 Rf1+ Ne1 Bf2 Bb7 Ba5 Rc1 Bc5 Nd3 Re1 Ba8 Bc3 Nb4
K1R3qb/b6q/1Pn1B1bB/3PkrN1/rNp3b1/5N2/q1r1b2N/bB1R4 b - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 Kf2 e5 Ke1 exf4 Ra3 f3 Ra2 h5 Qb3 f5 Qc2 f4 Ra1 Nc6 Qf5 Nce7 Qg5 Nf5 gxf5 Qd7 Qh4 Qd8 Qg4 hxg4 Kf2 Kf7 e4 Kf6 d4 c5 b4 g5 h4 a5 b5 a3 d5 a4 h5 c3 h6 c2 h7 a2 Bh3 c4 Nd2 a3 Bg2 g3+ Ke1 g4 Bh3 g2 Kf2 Qe7 Nf1 Bg7 Nh2 Ke5 f6 Ra4 f7 Bf6 Be3 c1R f8N Rc2+ Bd2 Qb7 Ne6 Ne7 Nd8 Rf8 h8N Nc6 Rd1 a1B Nhf7+ Kd4 e5 a2 e6 g3+ Ke1 f2+ Ke2 Bh8 e7 Bg4+ Ngf3+ Ke4 e8B g1Q Bd7 g2 Be8 Kf5 Ng5 Qh7 Bg6+ Kf6 Nde6 Rf7 Nc5 Rf8 Na6 f1B+ Ke1 Rf7 Nb4 Bd3+ Nf1 Qh2 Kf2 Qg8 Rg1 Qh1 N1h2 Bdf5 Rge1 g1B+ Ke2 Ba7 b6 Be4 Kf2 Bef5 Re8 Bd3 Bh7 Bg6 Rc8 Kf5 Ne5 f3 Ke3 f2 Nef3 f1B Bc1 Be2 Bd2 Ne5 Bc1 Rb2 Kd4 Nc6+ Kc5 Rc2 Kd6 Rf6+ Kc7 Rf8 Kb7 Rf6 Ng1 Ke5 Ka8 Rf5 Bd2 Bc3 Be3 a1Q Bd2 Qa2 N1f3+ Kf6 Bf4 Ba1 Re8 Re5 Nf7 B4f5 Rf1 Rc1 Rd1 Bh5 Nf1 Be4 B3f5 Bg4 Rc8 Bb1 Bhg6 Qhh7 Bh6 Be4 N7g5 B4d3 Bd7 Bdf5 Bf7 Bg6 Bf5 Rc3 Be4 Rf5 Bb1 Rc1 N1h2 Rc2 Nh4 Ke5 Be6 Qd8 Re1 Qe8 Rd1 Qeg8 N4f3+
6k1/1NBn4/qNn1R3/2pR4/r1Pn1rr1/n1Pn2bR/1N1rn3/K1NBr3 b - - 0 1 legal: proof: h4 e5 f4 exf4 a4 a5 b4 axb4 d3 g5 Bb2 gxh4 Bc1 b6 Qd2 Bb7 Qc3 Bd5 Qa3 Bc4 dxc4 bxa3 Kd2 f5 Kc3 Kf7 e4 d5 g4 h5 e5 c5 g5 b5 a5 a2 Kb2 f3 a6 h3 c3 f2 a7 f4 Be2 f1N Bd3 f3 Bh7 f2 Nd2 b4 Ngf3 h2 Bd3 h4 Nb1 h3 Nd4 b3 Nc2 d4 Be4 d3 Nba3 d2 Nb4 d1R Be3 Bd6 Bb1 Nc6 Bd2 Qa5 Nd3 Rh4 Bf4 Rg4 Bc2 Nf6 Nb5 Ng3 Nd4 f1R Ne2 Nd7 g6+ Kg7 Rb1 a1N e6 Bc7 e7 Rf2 Nd4 Ne2 e8N+ Kf8 g7+ Kf7 Bc1 Bg3 g8R Rf5 Bg5 Rff4 Rg6 Kf8 Rd6 Kg8 Re6 Qb6 Bd8 Qb7 Re1 h1R Nd6 h2 Bc7 Rhf1 Rc1 h1N Kb1 b2 Nb3 Qb5 Nb7 Nf2 Ka2 b1N Nb2 Rd6 Rcd1 Na3 Nc1 Nb3 Rd4 Rh1 Bd1 Qa5 Rg1 Rd5 Rg2 Re1 Rh2 Rd6 Rh3 Qa4 Rde4 Rd2 R4e5 Nd3 Rd5 Nbd4 Ka1 Rb8 a8N Qa6 Nd8 Rb4 Nb6 Ra4 Nb7
2BB1nr1/P1RR1N1r/3b4/3nb3/2kb1RBr/1n1pnP1r/2N2nb1/1K3B2 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Bc4 g4 Ba6 fxe6 Bd3 e5 Bf1 e4 h4 Ra4 f3 Nh6 h5 Ng8 Qd3 Ra8 Kd1 Qb6 Qe3 g3 Qf2 gxf2 g4 Qh6 g5 Qg6 hxg6 Ra6 Bg2 Ra3 Bf1 Ra8 c4 d5 Kc2 Kd7 a4 Kc6 a5 Kc5 g7 h5 g6 b5 a6 e5 a7 b3+ Kb2 d3 Rh3 h4 Rh1 h3 Bd2 e3 Bc1 h2 Ra3 b4 Ra2 e4 Ra4 d2 Na3 d1N+ Ka1 e2 Nh3 e1B Be2 f1N Nf4 e3 Kb1 d4 Ng2 d3 Ra6 b2 Re6 Rh7 Ra6 Nf2 Ra4 Nd7 Bd2 Ne7 g8R Nd5 g7 Bd6 Nh4 Nf8 Ka2 b1R Nc2 Bh3 Ng6 Bg2 Ne5 Rc8 Bc1 Bc3 Nf7 Bce5 Rh8 Rh3 g8B Rd8 Rg1 h1R Rh7 Rh4 Rg7 R1h3 Bh7 Rd7 Bf5 Rc7 Bg4 b3+ Ka3 b2 Ka2 Re7 Bd2 Rc1 Ba5 b1N Bd8 Nbd2 Rb4 Nb3 Rb7 Rd1 Rh1 Rd2 Kb1 Rd7 Ne1 Kd4 c5 Kc4 c6 Rc2 c7 Ra2 Bd1 e2 c8B Nfe3 Nc2 e1B Be2 B1c3 Bf1 Bcd4 Rh2 Ra4 Rh1 Rh8 Rh2 Rg8 Rh7 Rg3 R2h6 Rh3 Rf6 Re7 Rg7 Re6 Rf4 Reh6 Nh8 Rh7 Rgd7 Rb4 Nf7 Kc3 Bh5 Bb6 Rf5 Rbh4 Bg4 Bbd4 Rf4 Kc4 Rbc7+
BR2nn2/RR4k1/2q1nr2/rq1P1p2/3Nb2p/P4Nb1/4R3/K1NBq1br b - - 0 1 illegal: No possible last move, all moves rejected
1k2R1B1/4n3/2Rr1b2/P4Nrb/br1p1B1r/RP2N3/Nnnbp2q/1K2R3 b - - 0 1 illegal: No possible last move, all moves rejected
n3kn2/NR1bp2n/Rrb3p1/B3N2r/3bN1Bb/2b3PP/b2Nb3/6BK b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 b4 fxe4 Nc3 a5 Nb1 axb4 Ke2 b3 Kd2 Ra6 Ke1 Ra8 g3 b5 Bg5 h5 Ne2 h4 Ng1 b4 Qf3 h3 Qg2 Qb6 Bc1 Qb5 axb5 hxg2 f4 d5 Kf2 g6 c4 d3 b6 b2 b7 e3+ Kf3 e2 h3 e1B f5 d2 c5 d1B+ Ne2 g1B Kg2 b3 c6 d4 c7 d3 f6 d2 Rh2 Bd7 c8N Bg7 Nd4 Ra6 Ne6 Be2 Ra4 d1N Rf4 Bd4 Na7 Rh5 Ng5 Nc3 Ne4 Na4 Nbd2 b1B Kh1 b2 Rf3 Bc6 Ra3 Nd7 b8B Nab6 Bc7 Na8 Ba5 Nf8 Ra2 Rb6 f7+ Kd7 Bg2 Bgf6 Bf3 Bh4 Bg4+ Kd8 Rf2 Nf6 Rf5 Bbd3 Rb5 b1B Ba3 N6h7 Bc5 Bc4 Ra4 Bba2 Rbb4 Bdf6 Bg1 Bd4 Ra3 B4b5 Rb1 Ne6 f8N Ke8 Nd7 Nef8 Ne5 Bd7 Rbb3 Bbc6 Rb4 Ra6 Rb7 Rb6 Ndc4 Bec3 Nd2 Bde6 Bb4 Bf5 Ra6 Bfd7 Ba5
2rR2K1/3n2p1/n1RN3q/1Pn1p3/3bN3/1B1qkb1R/P1q1qB1B/5nnR b - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 a5 b4 axb4 Qf3 h5 Qd1 hxg4 Ne2 b5 Ba3 d5 Qc2 b3 Bc1 b4 Ng1 Ra5 Qd3 Rb5 cxb5 Kd7 Qe2 Ke8 Qc4 dxc4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 h4 e5+ Kg3 Kf5 f4 c3 d4 b2 d5 c4 h5 e3 d6 Ke4 d7 b3 f5 c2 f6 e2 Kh4 e1Q+ Kg5 c3 Kg6 g3 Kf7 g2 h6 Qe2 h7 Na6 Rh3 Bb7 Rd3 Bc5 Nf3 g1N Nh4 Bd4 Bf4 c1N Nf5 c2 Rc3 Nd3 Bh2 c1Q Rc6 Qh6 Nd6+ Ke3 Nd2 b1Q N2e4 b2 Bg2 Qc8 d8R Ndc5 Kf8 Qch3 f7 Qbc2 Rd1 b1N Bf1 Qef3 Bc4 Nd2 Bb3 Qe2 Ra1 Ngf3 Rh1 Ng1 Ke8 Ba8 f8B Nf1 Kf7 Nf6 Be7 Nfd7 Bh4 Re8 h8R Qf5+ Nf6 Qfd3 Nfe4 Re7+ Kg8 Re6 Rf8 Re8 Rh7 Rb8 Rd8 Rc8 Bf2+ Kf3 Nc3 Qf4 Rb6 Bc6 Rh4 Be4 Rc6 Qh6 Bfg3 Ke3 Rh3 Bg2 Nce4 Bf3 Bf2+
2n2B2/r1qbbbr1/P3p3/2r2Nbp/PbR1N3/1kB1BR2/n4p2/1KN2N2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 f5 dxc4 e4 Qd3 Qf3 Kd8 Qf4 exf4 e5 Nf6 e6 Qd5 e7+ Kd7 Bd3 Qd4 Be4 Ng8 Bd5 Qd3 Be6+ fxe6 Bb2 Ke8 Ba3 Qd8 Bc1 Kd7 Kd1 Kc6 Kc2 Kb5 e8N Ka4 g4 b5 d4 h5 g5 c5 f6 h3 f7 h2 d5 b4 a3 c3 a6 c4 d6 f3 g6 b3+ Kd1 b2 Kc2 f2 d7 Ra7 g7 Rh7 Be3 Bb4 f8B Qc7 d8B Nc6 Nd6 Nge7 g8N Bd7 Bd2 Rg7 Ne4 Nc8 Kd1 Kb3 a4 c2+ Ke2 c1B Kd1 c3 Bf6 Be7 Nh6 Nb4 Ne2 Na2 Be3 Bd2 Nf5 Be1 Rg1 h1R Rg3 Rg1 Rf3 R1g5 Nh4 Rc5 Nc1+ Kc4 Nf5 c2+ Ke2 Kb4 Nbd2 b1B Kd3 Ka3 Nf1 Bb4 Ne2 Kb3 Bc3 Bg5 Kd2 c1B+ Kd1 Bb2 Kd2 Bd3 Rc1 B2a3 Rc2 B3b5 Kd1 Be8 Rc1 Bbd7 Kd2 Kc4 Kc2 Bf7 Kb1 Kb3 Bcd2 Be7 Rc4 Bc1 Bc3 Bd2 Bed4 Bh6 Be3 Bhg5 Nc1+
2q1NN1B/q6B/RRb2n2/3qrPKP/2p4p/rbk2q2/2Nnpq2/R4N2 b - - 0 1 illegal: No proof kernel
rk1qbN2/2RPqNp1/brNq1R2/1N2npp1/4B3/q6R/2P5/n2qB1K1 b - - 0 1 legal: proof: e4 a5 g4 d5 b4 dxe4 g5 axb4 g6 hxg6 Ne2 c5 Ng1 g5 f4 e5 Qg4 b3 Qf3 e3 Qe2 e4 Qc4 Bd6 Qb4 Be5 fxe5 cxb4 a4 Kd7 h4 Kc7 d4 b5 a5 f5 e6 e2 Kf2 e1Q+ Kg2 e3 d5 e2 a6 b2 e7 b3 e8R b4 a7 Na6 h5 Nh6 Rh2 Nc5 Re6 Qd2 Nf3 e1Q+ Kg1 Ba6 Ne5 Ng4 Nc3 b1Q h6 b2 h7 b3 Rh3 Qa2 Rf6 b1Q Nc6 Qee7 Bd3 b2 Be4 Qa3 d6+ Kc8 Ra2 Nb3 Nb5 Ne5 d7+ Kb7 Ra1 Qdd6 Ra2 Rb8 a8N Na1 Nac7 Rg8 h8N Ra8 Nb4+ Kb8 Nf7 Rh8 Ne6 Rh6 Nf8 Rg6 Kh2 Rh6 Bd2 Qd1 Bc3 b1B Be1 Rg6 Rb2 Ba2 Kg1 Bc4 Rbb3 Be2 Rbc3 Bh5 Rc7 Rh6 Nh8 Be8 Nf7 Rh4 Bd5 Rc4 Bh1 Rc6 Be4 Rb6 Nc6+
3q1nK1/N3p3/1RPR3b/2k2r2/1pr2Np1/2BR4/1P1rRq1n/2qBb1rN b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 h5 d5 hxg4 d6 b4 Bb5 cxd6 Bc4 d5 Bf1 d4 c3 a5 Bh6 Ba6 Ra3 Bb5 axb5 a4 Ra1 a3 Bc1 a2 Qf3 Nf6 Nd2 Ng8 Rb1 a1Q Qe2 Qa2 Ra1 Qb1 Qc4 Nf6 Qg8 Nxg8 Ke2 g5 h4 d5 f4 Kd7 b6 Kd6 f5 g3 f6 g4 h5 g2 b7 e3 h6 Bg7 h7 Ra7 c4 Qc7 c5+ Kc6 f7 Qc8 f8R Qd8 Nh3 g1R Ne4 Bh6 Rh2 Nd7 Nf4 Ra5 Ng3 Qf5 Nh1 Ngf6 Ra3 Ne4 Kd3 e2 Bd2 e1B b8N+ Kb5 Rf7 Nf8 Nc6 Rg8 Bg2 Ng5+ Be4 Qf6 h8R Nf3 Re2 Nh2 Bf3 Rg5 Rb3 Rf5 Bc3 Qh4 Rhh7 Qf2 Rf6 Ra7 Ra3 Rc7 Rd6 Rc8 Rg7 Rc7 Rgg6 Rc8 Kc2 d3+ Kb3 d2 Rge6 d1R Rf6 d4 Rg6 Qa5 Rgf6 Ka6 Kc4 d3 Na7+ Rc6 Rb3 Qd8 Rg6 Ka5 Rge6 Rc8 Rb6 d2 Red6 Rc1 c6 d1Q Be4 Rc7 Bc2 Qd2 Bd1 Rd7 Rb7 Rc2 Rb8 Qc1 Rb6 Rf6 Kd5 Rf5+ Be5 Rc4 Rd3 Nh7 Rb8 Ka6 Ke6 Ka5 Bf6 Nf8+ Kf7 Ka6 Kg8 Ka5 Rc8 Kb6 Rb8+ Kc5 Rb7 Qb1 Bc3 Qc1 Rf6 Rd6 Rb6 Rdd4 Rd6 Rdd5 Rg3 Rd2 Rgd3
2n1Nb1R/r1P2qBr/5BBb/nR1r4/2n1R2p/2p2p1K/q1P5/Nk2Br2 b - - 0 1 legal: proof: f4 e5 a4 exf4 a5 c5 a6 c4 d3 c3 Ra3 bxa6 Ra4 a5 Ra3 a4 Ra1 Ba6 g4 h6 g5 Bc4 dxc4 hxg5 h4 Qa5 h5 Qc7 Qd4 Qb6 Qf2 Qd8 Qh4 gxh4 Kf2 Ke7 Kg2 Kd6 b4 a5 e4 f5 e5+ Kc6 b5+ Kc5 e6 Kb4 c5 g5 c6 d5 h6 a3 h7 a4 e7 g4 b6 g3 b7 d4 Bd3 a2 Bb2 a3 Ba6 d3 Bb5 d2 Rh3 d1N c7 Ra7 Be2 Nc6 Rh1 Qd5+ Nf3 Ne3+ Kh3 g2 Nd4 g1B Bd3 Nc4 Nb3 Be3 N1d2 Qe6 Rac1 a1Q Rhe1 a2 Ne4 Ra5 b8B Rd5 Nd6 Qb1 Red1 a1R Re1 Ra8 Be4 N6a5 Na1 Qa2 Ba7 Qd7 Bd4 Ra7 Rb1 Bc1 Rg1 Qe8 Rg7 Qf7 Bf6 Be3 Bc1+ Ka4 Bd2 Ka3 Rc1 Kb2 Bd3 f3 Rd1 f2 e8R f1R Rg4 f4 Bg6 f3 Be1 Ne7 Re4 Bfh6 Rc1 Bc5 Rb1+ Ka3 Rf8 Nc8 Rb5 Bb4 Bg7 Kb2 Ne8 Kb1 Bf6 Rg8 h8B Rg7 Rg8 Rh7 Bhg7 Rh5 Nb3 Bf8 Rh8 Rd5 Na1+
B3R1rB/1p4bN/1p1Bq3/2k3r1/PN1n2q1/KRp1b3/1Pb2N1n/B1n4b b - - 0 1 illegal: Other
2Nq1b2/pr3N1R/1n6/1B1qnB2/1PB1pbPB/R2k3K/p2r1R1n/2n1q3 b - - 0 1 illegal: No possible last move, all moves rejected
B2n2k1/n2BNN2/1Kp3nr/2R4q/1bNp3P/q1Pr3p/1R2Nq2/Rn1r4 b - - 0 1 legal: proof: e4 a5 b4 axb4 d4 e5 f3 exd4 e5 b6 Bb5 Bb7 Bf1 Be4 fxe4 g5 h4 g4 Qd3 Bg7 Qh3 Bf8 Bg5 gxh3 g4 h6 Be7 Ra5 g5 Ra4 g6 Ra8 Bg5 hxg5 Kf2 f5 a4 d5 a5 b3 g7 Kf7 c3 d3 Ke3 g4 Kd4 d2 a6 d1Q+ Nd2 f4 a7 f3 Ra5 f2 Bd3 f1Q Bc2 b5 Bd3 b4 Bc2 b2 Rc5 b1N Ra5 g3 Ra1 b3 Ne2 b2 Bd3 g2 Ba6 g1R Rh2 Bb4 Bb5 Na3 Bd7 Ne7 g8N Ng6 Ne7 b1N e6+ Kg7 e5 Qdf8 Rg2 Rh6 Rg5 Q1f5 Rh5 Qdf1 Nc4 Rg3 Rg5 Re3 Rg2 Qh5 Rg5 Q1f2 Rf5 Ba5 Kc5 Nc6 Rg5 Re8 a8B Nd8 Rg2 c6 Rg5 Bb4+ Kb6 d4 Nf5+ Kh8 e7 Bd6 Ng1 Re1 e6 Re3 Rg2 Qf1 Rb2 Re1 Ne2 Qf2 Rd2 Rd1 Rc2 Qf6 Rb2 Rf8 e8R Nb5 e7 Na7 Bb7 Kh7 Ba8 Rf7 Rf8 Qe5 e8N Bb4 Ne7 Rf3 Rf4 Rfd3 Ned6 Kg7 Rf5 Qe6 Ne5 Qa2 Nef7 Qa3 Rc5 Kf8 Nc4 Kg7 Nd5 Kg8 Ne7+
4Bq2/1b2PRr1/p3NRnr/1rb5/2K2BnP/3NkpqN/p1p1r1R1/3R4 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f3 bxa4 f4 exf4 g4 fxg3 Ra3 h5 Ra2 h4 Qb3 g2 Qg3 hxg3 Ra3 Qe7 Ra1 Qd8 e4 Kd7 Ke2 Kd6 Kd3 Kc5 h4 f5 b3 g5 e5 a6 e6 g4 d6 a3 d7 a2 Rh3 f4 Rh2 f3 Nh3 g1Q Na3 g2 Nc2 g3 Ne1 Bb7 b4+ Kd5 b5 c5 b6 c4+ Kc3 Ke4 d4 Ne7 d5 Nbc6 d6 Rh6 Nd3 Rb8 Bf4 Ng6 Rd1 Nce5 Kb4 Qe8 d8R c3 Rd7 c2 Rf7 Ng4 Kc4 Qd8 d7 Bc5 e7 Qf8 d8N Qf2 Rh7 g1R Ne6 g2 Rf7 Qg3 Be2 Re1 Bf1 g1R Rg2 Bc6 b7 Re2 Rf6 Ra8 b8R Bb7 Rc8 Rb8 Re8 Bc6 Rd8 Rb5 Rd5 Bb7 Rdf5 Re3 Rf7 Re2 R5f6 Rb2 Re1 Nh8 Rf5 Ne5+ Kc3 Re3 R5f6 Qh2 Rf2 Rg7 Rd1 Nhg6 Rg2 Qg3 Be2 Rb1 Bf1 Re1 Nc1 Ng4 Bb5 Re2 Nd3 Rb2 Be8 Rb5 Bd6 Ke3 Kc4 Qe5 Bb8 Qg3 Bf4+
5n1N/1bk1qRB1/1p1R1p2/1Pqr1n2/n1p1Np2/2B1q3/3rPnN1/R4NK1 b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 g5 f4 gxf4 b4 a5 b5 e5 g5 Ba3 Qb3 Bc5 Qb4 axb4 Bh3 Be7 g6 Bg5 Bg4 e4 Bf3 exf3 hxg5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 a4 c5 d4 h5 g7 h4 a5 b6 g6 c3 a6 h3 d5 h2 a7 c4 d6 c2 Bd2 c1Q Bc3 b3 Nd2 b2 Nf1 Nh6 g8N b1N g7 Bb7 Ne7 Nf5 g8N Rh5 Bg7 Nc3 Ng6 Na4 Nh8 Qe7 Nf6+ Kc8 d7+ Kc7 Ne4 Qe3+ Ke1 Rg5 Rd1 Rh5 Rd6 f6 d8B+ Kc8 Bc7 Nd7 Bb8 Nf8 Bc7 Rb8 a8R Qc5 Ra7 f2+ Kd1 Rg5 Nf3 Qe3 Rg1 h1N Ne1 Qc5 Ng2 Rh5 Nfg3 f1Q+ Kd2 Qb1 Nf1 Qd3+ Ke1 Nf2 Rh1 Nh6 Rg1 Rd5 Rh1 Nf5 Rh7 Nc3 Ra1 Ra8 Bb8 Ra2 Bc7 Rd2 Bb8 Nfd1 Bc7 Na4 Bb8 Nde3 Kf2 Qb3 Kg1 Ng4+ Nge3 Nf2 Ng2 Rb2 Re6 Qg3 Be5 Qge3 Rd6 Rbd2 Bc3 Kc7 Bh6 Nh4 Rf7 Nf5 Bg7
4b2B/2R1Rp1k/6bb/KnN4R/N2Pqbr1/4p1P1/2qNppB1/1n2Nq2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 a5 c4 axb4 f5 b3 f6 gxf6 Bb2 f5 Bc1 f4 g3 b5 Na3 h5 Qg4 b4 Qh3 h4 Qg2 h3 Nb1 hxg2 Be2 Ra5 Bf1 Rb5 cxb5 Rh7 Nh3 Rh6 Ng1 Rh8 a4 c5 d4 e5 Kd2 c4 h4 c3+ Ke2 f3+ Kd1 e3 a5 e4 b6 e2+ Ke1 c2 Kd2 b2 b7 f2 h5 b3 Kc3 Qh4 h6 Bd7 h7 Na6 b8N Bh6 Ra4 Kf8 Be3 Kg7 Bf4 c1B Nd2 b1B Rc4 b2 Be5+ Nf6 Rc7 Rg8 h8R Be8 Ngf3 g1Q Bg2 Qf1 Nd7 Bd3 Nc5 b1Q Re7 Nc7 a6 Qc2+ Kb4 Nb5 a7 Kg6 a8N Nd5+ Ka5 Ndc3 Rc7 Nb1 Ne1 Rg7 Rf8 Kh7 Nb6 Rg4 Bh8 Qe7 Rh5 Qh4 Ndf3 Bf4 Nd2 e3 Nba4 Bg6 Rg8 Qe7 Rf8 Qee4 Rg8 Bd7 Re8 Bc6 Re6 Be8 Ree7
1N3R2/R1pRnNn1/2Pp2q1/pN1n2qk/p3P1n1/3B1N1K/2b2B2/1r1qr3 b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 b5 a4 bxa4 Ra3 f5 Ra1 fxg4 b5 a6 Ra3 Bc5 Ra1 Ba7 b6 Qf6 Bd2 Qh4 Bc1 Qd8 bxa7 h5 Qd3 h4 Qg3 hxg3 h4 Kf7 c4 Kg6 f4 d6 f5+ Kh5 c5 g5 c6 a5 e3 g2 Kf2 g3+ Kf3 d3 f6 d2 f7 d1N f8N g4+ Kf4 Qg5+ Ke4 Na6 Rh3 Nb4 Nc3 Nd5 Nb5 Rb8 a8R Nge7 Nf3 g1Q Bd3 g2 Nd7 g3 Ra7 Re8 Rh1 Rb6 Nb8 Qf1 Bb2 g1N Bd4 g2 Ra2 Bh3 Rf2 Ne2 Rh2 g1Q Rh1 Kh6 h5 Nef4 Rhh2 Ne6 Bc5 Kg7 h6+ Kg6 h7 Ng7 h8N+ Kh5 Nf7 Qe1 Nbd4 Rb1 Nb5 Nb2 Rhg2 Nc4 Rg4 Ne5 Rh4+ Kg6 Rh7 Ng4 Ra2 Qb4+ Bc4 Qd1 Nd8 Bf1 Rah2 Nh5 Rf2 Nf5+ Ne5+ Kf6 Rd7 Ng7 Bb6 Qb2 Be2 Qbd2 Kf3 Qg6 Bd4 Kg5 e4 Kh5 Bb6 Nfe7 Kg3 Rf8 Bc4 Be2 Kh3 Bd3 Bc5 Bc2 Bd3 Q2c1 Rf1 Rf2 Bb6 Rd2 Rf8 Re2 Ndf7 Qcg5 Bf2 Re1 Nf3
3nbBb1/R1Pp1BR1/r3p3/2nqpR2/2pNP2B/k5n1/pNb2K2/b2B4 b - - 0 1 legal: proof: h4 g5 a4 gxh4 d3 b5 Qd2 bxa4 Qf4 f6 Qh2 Bh6 Qe5 Bf8 d4 fxe5 Nd2 a5 Nb1 c5 Na3 c4 Nb1 Ra7 Nf3 Rc7 Ng1 Rc5 dxc5 Ba6 Ra2 Bb7 Ra1 Bc8 Nf3 Nc6 Ng1 Nd4 Kd1 Nxc2 f4 h5 b4 a3 g4 h3 b5 a2 c6 h4 c7 h2 b6 h3 b7 a4 b8B a3 e3 Rh6 Ke2 Nb4 g5 Bb7 g6 Bf3+ Kf2 Nc6 g7 Nf6 g8B Ne4+ Ke1 Ng3 f5 Bh5 Ba7 Qa8 f6 Nd8 Bd2 Qd5 Bh7 Kf7 Bc5 Ke6 Ba7 Kd6 Kf2 Be8 f7 Kc6 Bg2 Kb5 Nf3 Ka4 Rg1 h1B Bc5 h2 Bg8 Ra6 Be1 e6 Bcb4 Bc5 f8R Bd4 Rf5 Bb2 Bf1 Bg2 Bf7 h1B Nd4 Be4 Bc5 Bc2 Be2 Bhe4 Bd1 Bd3 Bf8 Bc3 Rh5 Bh7 e4 Bg8 Rf5 Bb2 Nd2 Bc3 Nf1 Bb2 Ne3 Bc3 Rb1 a1N Rb7 a2 Ra7 Nb3 Rg2 Ba1 Rg1 Nf1 Rg7 Ng3 Bf3 Bb2 Nd1 Nc5 Be2 Ba1 Nb2+ Ka3 Bd1 Bb1 Bd2 Bd3 Bg5 Bc2 Bh4
1b1NR2n/2BKpq2/2p2rBB/1p1pqp1B/R4P1n/4q3/rq1kRN1P/8 b - - 0 1 legal: proof: d4 a5 b4 axb4 c4 h5 g4 hxg4 c5 Ra6 c6 dxc6 d5 Ra8 e4 Kd7 d6 Rh4 e5 Rh3 Qd5 cxd5 e6+ Kc6 d7 Kd6 Ba6 c6 Bf1 Qb6 d8B Bd7 exd7 Rh8 Kd2 Kc5 Kd3 f5 f4 g5 a4 g3 a5 g4 a6 g2 a7 b3 Ra4 b2 Nh3 g1Q Ra3 Kb4 Bc7 g3 d8R g2 Be2 Nh6 Re8 Nf7 Ng5 Rh6 Ne6 Bg7 Nc3 Rf6 Nd8 Qe1 Nd1 g1Q Nf2 Nd7 Bh5 Qe5 Bg6 Nh8 Ra4+ Kb3 Be3 Nf8 Bd4 Qg5 Re1 Qh5 Bh7 Qf7 Bg6 Nh7 Bc3 Ng5 Bd4 Nf3 Bc3 Rc8 a8B Nh4 Bd4 Qa7 Bc3 b6 Bb7 Ra8 Bc8 b5 Be6 Qg8 Bef7 b1Q+ Kd2 Qa2+ Kd3 Qb2 Bh5 Qc5 Bfg6 Qf7 Bd4 Qca3 Bc3 Qee6 Kd4 Kc2 Be2 Qad6 Beh5 Qde5+ Kc5 Ra7 Kb6 Ra5 Bd4 Kd2 Kb7 Qe3 Kb8 Q6e5 Kc8 Ra6 Kd7 Ra8 Rb4 Ra1 Ra4 Ra2 Bd1 Q5e4 Bdb6 Re6 Be5 Q4d4 Bdh5 Qdc3 Bed4 Be5 Ba5 Bc7 Bg7 Bb8 Bc7 Qce5 Bh6 Rf6 Re2+
1KbN1n2/pR2nnN1/q1R1B3/b3k3/P2Pnq2/BrR1r1Bq/2r5/n5bB b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 e6 dxe6 g5 e5 Qe2 e4 Qg4 hxg4 Kf2 Kd7 b4 Ke6 h4 f5 a4 c5 h5 c3 b5 c2 h6 e3+ Ke2 c4 g6 f3+ Ke1 g3 g7 f2+ Ke2 c3 Kf3 g2 Kf4 e2 h7 e1Q b6 Nd7 b7 Qe2 b8B Qa6 Rh4 Qc7+ Kf3 f4 Ke4 f3 Be2 f1Q Nh3 g1B Na3 f2 Nb5 Qf4+ Kd3 Kf5 Rh6 e5 Ba3 c1N+ Kc2 e4 Ra2 e3 Rc6 Nb3 Kd3 c2 Rb2 c1R Ng5 Qh3 Ne6 f1N Nd8 Bb4 Bf3 Rc2 Bh1 Ne7 g8B Ba5 Be6+ Kf6 Rc3 Re8 h8R Ng3 Rh4 Ne4 Kc4 e2 Rh6+ Ng6 Kd5 e1N Bc7 Nf8 Nd4 Na1 Nf5 Rb8 Ng7 Nd3 Rb7 Ne5 Bcd6 Nf7 Bc7 Qfe3 Bh2 Qf4 Bg3 Qe2 Kc6 Ke5 Rc7 Rb5 Rb7 Rb6+ Kc7 Qa6 Kb8 Rb3 Bf5 Ne7 Rhc6 Nd5 Bg4 Re6 Bf5 Ne7 Bg4 Rd6 Bf5 Rd3 Be6 Re3 d4+
1N1br1kb/3p4/3qbN2/Bq1P1Nn1/R3n1Bb/5Bb1/2rRP1B1/2bK2bn b - - 0 1 illegal: No proof kernel
6kb/4B1RR/b5Rp/r2qrb2/n1R1n2P/1B3K2/nrn1n1NP/nN4Nq b - - 0 1 illegal: Other
1nN5/2b3nK/p2NBB2/P4n1k/b1RPrqn1/n1q1q1Rr/1q1N3N/5rR1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 f5 Nc3 f4 Qf3 hxg6 Qd3 g5 Qg3 fxg3 Nb1 g4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 b4 e5+ Ke3 c3 a4 g2 h4 c4 f4 g3 d3 c2 b5 c3 b6 Qd4+ Ke2 e3 Kf3 e4+ Ke2 Bd7 b7 Nc6 b8N a6 a5 Nf6 Nh3 g1Q Ba3 c1N+ Kd1 e2+ Kc2 e1N+ Kd1 e3 Bg2 Nc2+ Bf1 g2 Ng5 Nh5 Rh3 Nb3 Ke2 Bd6 Kf3 e2 Bb2 e1Q f5+ Kh6 f6 Na3 f7 c2 f8R c1Q Be2 Bc7 Rf4 g6 Bc3 Ng7 h5 Qb2 Rfh4 Qc4 Bf6 Nbd4+ Ke4 Qec3 Nf3 g5 Nh2 g4 Nd2 g3 Bg4 Qf2 Bf5 g1R Rg4 Be8 Nd7 g2 Nb6 Rh1 Re1 g1N Bd7 Rb8 Be6 Ngf3 Nc8 Rb4 Rgh4 Nb8 Rc1 Ba4 Rg3 Ne5 Rf4 Ng4 Rb1 Kh7 h6 Kg6 h7 Rc1 Ra1 Rg8 h8N+ Kh6 Nf7+ Kg6 Be5 Rh8 Bf6 Rh3 Nfd6 Kh5 Rb1 Rc2 Rf1 Rc1 Rfg1 Rf1 Bd8 Nh6 Ke5 Qe3+ Kf6 Ng4+ Kf7 Rf3 Kg8 Ndf5 Kh7 Rf1 Bf6 Q4d4 Re4 Qe5 Rd4 Q5f4 Re4 Rb5 Rb4 Re5 d4 Re4 Rc4
4B2r/1q1rpNB1/1qNNbR2/k1P4B/3brB2/n3RnK1/q3P2n/q2qr3 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bc1 fxg6 Qd2 g5 Qf4 g4 Qg3 hxg3 a4 b5 f4 d5 h4 Kd7 c4 Kc6 h5 Kb6 f5 g5 f6 g2 Kf2 g3+ Kf3 g4+ Kf4 d3 f7 d4 c5+ Ka5 h6 b3 h7 b4 Nf3 g1R Ng5 g2 Ne4 g3 Ba3 b2 Ned2 b3 Rh4 Na6 Rg4 Bg7 f8B Qb6 Rg5 Be6 Rg6 Nf6 Ne4 d2 Ng5 d1R Nc3 b1Q Na2 b2 Nf7 d3 Nd6 d2 Nb4 Ng4 Rf6 Nh2 Ra2 Nc7 Nc6+ Ka6 a5 Nb5 Bb4 Na3 Bc3 Rh1 Be5 g1N Bh3 g2 Bg4 Ngf3 Bh5 Rhe1 Kg3 Qa1 Bf4 b1Q Rb2 Qaa2 Rb3 Qb7 Rd3 Q1b6 Re3 Rd8 Be8 Rd7 Bh5 Rc1 Be8 d1Q Bh5 Bh6 Bg7 Rc4 Be8 Re4 Bh5 Rg8 h8N Rc8 Nhf7 Rh8 Nf5 Kb5 a6 Qda1 a7 g1Q+ Kh3 Qd1 a8B Qh1 Kg3 Ka4 Bf8 Bg7 N5d6 Qf1 Rf5 Bd4 Bg7 Qda1 Rf6 Q7c7 Nce5 Ka5 Bc6 Qcb7 Ba4 Rc1 Bb5 Qd1 Ba4 Qd3 Bb5 Re1 Bc6 Qdd1 Ba4 Rc7 Be8 Rd7 Nc6+
1R2BR1b/3p2N1/3b4/1rkN2bb/3PKP2/1bqrbnNB/n2B1r2/q2r2N1 b - - 0 1 illegal: No possible last move
bq4r1/2n1qRp1/1pN3K1/5Rb1/B1bq1RPb/NR1k2B1/nP3r2/Nr4r1 b - - 0 2 legal: proof: f4 e5 a4 exf4 g4 c5 d4 cxd4 a5 Qxa5+ Bd2 Qa2 Bc1 h5 Qd3 h4 Qg3 hxg3 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Kd5 h4 a5 c3 b6 h5 g2 e3 f3 h6 f2 h7 a4 Nd2 f4 Ne4 a3 Be2 f1R Nf2 f3 Nfh3 f2 Rb1 Ne7 Nf3 g1B Nd2 Nbc6 Nb3 Rg8 h8R Bb7 Ng5 d6 Nf3 Nb4+ Kd2 Ke4 c4 d3 c5 d5 c6 d4 c7 Rb8 c8R Ba8 Ne5 Ned5 R8h5 Nc7 Bd1 Be7 Rf5 Bg5 Na1 Qe6 Rcf8 a2 Nc6 Qe7 R8f7 Rbf8 Rh3 Re1 Rg3 f1B Ba4 Bf2 Rh3 Bfh4 Rf4+ Kd5 e4+ Kc4 e5 Be2 e6 Rg1 Nc2 a1R Rf5 Qf6 e7 Na2 e8N Qe7 Rg3 Nd5 Nc7 Rf6 Nb5 Nc7 Rh3 Bf1 Kd1 Rff8 Be3 d2 Nba3+ Kd3 Rc1 Rb1 Bf2+ Qe3 Bg3 Qe7 Na1 Rf7 Rc5 Rf5 Re4 Rf2 Rf4 Ke3 Kc2 d3+ Kb3 d1Q+ Kc4 Ke2 Kd4 d2 Rcf5 Qb3 Rc3 d1Q+ Rd3 Qbf7 Rh1 Qd8+ Ke5 Qb8 Rb3 Qff8 Rf7 Qd4+ Kf5 Qe7 Kg6 Kd2 Rh3 Bc4 Rb5 Ke2 Rbf5 Kd3 Bh2+ Kd2 Rb3 Ke2 Bg3 Kd2 Rbb5 Kd3 Rb3+
1q3r2/qR1N4/P2n3p/b1rpb3/k1rbR1BK/Br5b/Nn1B3P/R3R2q b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 Qf3 f6 f5 fxe5 Qg4 e4 Qf4 gxf4 Kf2 d5 a4 Kd7 c4 Kc6 g4 e5 c5 b5 f6 e3+ Kg2 h6 Kh3 d3 f7 d2 a5 d1Q a6 b3 Ra5 f3 Kg3 f2 g5 b2 g6 e2 g7 e1B Nh3 b4 Ra1 b3 Bd3 f1R+ Nf2 e4 Bg5 e3 Kh4 e2 Bf6 Nd7 Ra3 Nb6 Be4 Kb5 c6 Bd6 f8B Ba5 c7 e1B Ra4 Bec3 Bc2 Ne7 g8R Bh3 c8R Qc7 Ne4 Qa7 Bg5 Bde5 Rc6 Rc8 Rg1 Nc4 Re6 Rf4+ Kg3 Bcd4 Rg7 Rc5 Re1 Nc8 Ra1 N8d6 Nf6 Kb4 Nc3 b1Q Rd7 Nb2 Na2+ Ka4 Rb7 Qdc1 Re4 Qh1 Nd7 Rg8 Be7 Rgc8 Bd3 Rff8+ Kh4 Rc4 Bd2 R8c5 Bf6 Qbg1 Be2 Qb8 Bd8 Qg7 Bg4 Qh7 Nf6 Qhc7 Be7 Qa7 Rb5 Qcb8 Nd7 Bf6+ Kg3 Rc6 Bf5 Nf7+ Rf4 Nd3 Re3 b2 Re5 b1R Rb7 Rb3 Ree1 Bfe5 Bg4 Nb2+ Kh4 Rcc8 Bc5 Nd6 Ba3 R8c5 Rfe4
bN5b/1RN1p3/rr1r2BK/nr1qR2R/pq1bN3/4P2P/2k1n2n/2B2bN1 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Bh6 h4 Bc1 fxg6 Qd3 g5 Qf3 g4 Qg3 hxg3 Kd2 Kf7 f4 Kf6 b4 Kf5 c4 Ke4 h3 a5 c5 g5 c6 d5 b5 a3 b6 d3 e3 g2 f5 a2 b7 d4 f6 g3 c7 g4 f7 a4 Be2 Ra6 Nf3 g1R Bb2 g2 Bf1 g3 Na3 Nc6 b8N Nh6 Rc1 a1B Nh2 Qd5 Rd1 Na5 Ng4 Bb7 c8R Ba8 Rdc1 Bg7 Ne5 Ng4 f8N Rh5 Nb1 Nh2 Re8 Bh8 Ke1 d2+ Ke2 d1R Rc5 Rhh6 Ba3 Rhb6 Ne6 Rd3 Rg8 Rdb3 Bc1 R3b5 Nf3 d3+ Kd2 Baf6 Nc7 Bd4 Rg5 Rd6 Ke1 d2+ Ke2 Rdb6 Rh5 d1B+ Ke1 Be2 Nc3+ Kd3 Ne4 Qb7 Rce5 Kc2 Ne8 Qd5 Nc7 Kb3 Kd2 Bc4 Bd3 Rd1+ Ke2 g1Q Rh4 g2 Rhh5 Nf1 Rh2 Qh1 Kf2 g1N Bb1 Ne2 Ng1 Qc5 Rg2 Qb4 Kf3 Bd3 Kg4 Nh2+ Kg5 Bc4 Rf2 Qf3 Rf1 Qf7 Rf6 Qd5 Kh6 Rd3 Nc3 Rd2 Bg6 Bd3 Rf4 Kc2 Rff5 Nf4 Ne4 Bf1 Rf8 Ne2 Rf6 Rd3 Rc6+ Rc3 Rd6 Rcc6 Rd7 Rf6 Ne6 Rd6 Rb7 Rdb6 Nc7 Rfc6 Rhg5 Rd6 Rh5
BbN5/1N6/rR1B1nk1/3q1pBR/n1p3B1/1bb1p1P1/3r1Pb1/2Knr1bR b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 d5 c5 dxe4 Qb3 b6 b5 bxc5 Qb2 c4 Qb4 axb4 Kd1 c5 d4 h5 a4 e5 d5 f5 a5 Kf7 d6 c3 d7 c2+ Kd2 b3 b6 e3+ Kc3 e4 Kb2 e2 b7 e1B a6 h3 a7 h2 Na3 h4 Ra2 h3 Bd3 Na6 b8B Kg6 Nc4 Bd6 Nb6 Nf6 Bf1 Bc3+ Ka3 b2 Bd3 b1N+ Kb3 e3 Ba3 c1B Kc2 B1b2 Be2 c4 Bd3 Nc5 Ne2 Na4 Bb4 Bce5 Bc5 Nbc3 Nc1 Nd1 Be2 Bbc3 Nd3 Bb7 Kc1 Be4 Bd4 Re8 Nc5 Bc2 Nb7 Bb3 Rb2 Bc7 Rf1 h1R Bg4 Bh2 g3 Bg1 Nc8 Re4 Be5 Rd4 Bf4 Rd2 Bg5 Qg8 d8R Qd5 Re1 Bf4 Bd6 Bfe5 Ba3 Bb8 Rh8 Bh2 Re2 Re1 Rh5 Bg1 Bd6 h2 Rb1 Rd4 Ra2 h1B Rab2 Bg2 Ba3 Bf4 Bd6 Rd2 Ra1 Rb8 a8B Bfe5 Nd8 Rb6 Nb7 Ra6 Rab1 Ba2 Rb6 Bb3 Rc6 Bc2 Rbb6 Bb3 Rc7 Bf4 Rch7 Bfe5 Rh1 Bf4 R7h5 Bfe5 Bf8 Bb8 Bd6
N1bB4/2P1qn1q/6p1/r2np3/2KNn1kq/2n1Pp1B/RR1Rn3/b1R2rN1 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 Qd3 g5 Qg6 gxf4 g5 Ra3 Qd6 Rb3 g6 Ra3 g7 Ra8 Qg6 hxg6 Kd2 f5 Kd3 Kf7 c4 Kf6 h4 b5 a4 d5 a5 f3 e3 b3 h5 Kg5 c5 f2 c6 f4 c7 f3 a6 b2 a7 b4 h6 b3 h7 Nh6 g8R Kg4 Rh3 Nc6 Bd2 Nf7 Ra6 Bg7 Bg2 f1N Be1 Nd2 Rh1 Ne4 Na3 b1Q+ Nc2 b2 Bb4 Qe1 Ba5 b1Q Re8 Qh4 Bd2 e6 Bc1 Qde7 Bf1 Qb2 Nb4 Qbh2 Bb2 Q2h3 Kc2 d3+ Kb3 d2 Ba3 d1N Rh2 d4 Rd8 d3 Kc4 d2 Nc2 Nd4 Bg2 Ne2 Nd4 Ndc3 Bd6 d1N Ra2 Nd5 Bg3 Qh6 Bh4 N1c3 Rd7 Rd8 h8R Qh7 Bf6 Q3h4 Rd6 Rb8 a8N Rb5 Rb6 Rb1 Rbb2 Rf1 Rh1 Rd6 Rd8 Ra6 Rd7 Ra5 Rd6 Qd7 Bd8 Be5 Rdb6 Qde7 Rd2 Bd6 Rb4 e5 Rb1 Ba3 Rh2 Bb2 Rc1 Ba1 Rdb2 Neg5 Bh1 Nef4 Rhd2 Nfe2 Bg2 Nge4 Bh3+
5n1B/PbRpn1pB/1rq3q1/k1r1nB1N/2n1Rb2/4p1Pr/K7/1R1N1n1B b - - 0 1 illegal: No proof kernel
1N2b1q1/r1B1kB1r/3rnNpB/3R2Pn/p2q1b2/4PRnb/4B2p/rRK5 b - - 0 1 illegal: No proof kernel
1BB2r1q/3r2qq/N4R1r/2ppPqnp/bN3R2/2Bn1B1P/nk3b1K/2N5 b - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e6 d5 f6 d6 fxg5 Qd2 g4 Qd5 exd5 e4 Kd7 f4 Ke6 Kf2 h5 Kg2 g5 a4 b5 a5 g3 d7 b3 f5+ Ke5 a6 Kd4 a7 b2 h3 g4 e5 b4 f6 c3 f7 b3 Be2 c2 Nc3 b1Q Bc4 b2 Ba2 Nc6 Bg5 c1N Na4 Qh7 Bh4 b1Q Be7 Nb4 Bg5 Nbd3 Be7 Nh6 Nc5 Kc3 Na6 Kb2 Bb4 Bc5 f8B Nf7 Bb3 Na2 Bd6 Ng5 Ne2 Bf2 Rf1 c5 Bd1 Rf8 Kh1 g2+ Kh2 g1R Nc1 Bb7 Bb8 Bc6 Ba5 Ba4 Bf3 Rf7 Be1 Qdh8 d8N Rd7 Nc6 Rg3 Ncb4 Qf5 Bc7 Rf8 a8B Qc2 Bb7 Qb1 Be4 Rf3 Bb8 g3+ Kg2 Qfh7 Bc8 R3f6 Bf3 Rh6 Kh1 g2+ Kh2 Nf4 Bd2 Qbf5 Be1 Nd3 Bd2 Nc3 Ra3 Na2 Rc3 Rfd8 Rc4 Rf8 Bc3+ Kb1 Rg1 Bd4 Nc7 Nf7 Be4 Qg4 Be1 Kb2 Rf1 Qgg6 Rf6 Qf5 Nca6 Bg1+ Kg3 Be3 Bf3 g1Q+ Kh4 Qg2 Rf4 Qgg7 Bd2 Ng5 Kg3 Bd4 Kh2 Bf2 Bc3+
NBN1R3/RRn5/p2KP3/bqN3qB/R3knrr/Pb5p/3b2p1/1qr1b3 b - - 0 1 illegal: No possible last move
2qk4/bR1Br3/2p1N1Rq/K2n1P1b/1B1np2N/1r1q1r1q/3NP2p/2B2r1B b - - 0 1 legal: proof: g4 a5 c4 g5 h4 gxh4 b4 axb4 g5 d5 Qc2 dxc4 Qe4 f5 Qg4 fxg4 f4 e5 a4 b5 d4 h5 Kd2 c3+ Kd3 c2 d5 h3 d6 b3 Kc3 b4+ Kc4 h2 Kb5 b2 g6 h4 g7 g3 a5 g2 a6 b3 a7 h3 Ra6 e4 Ra5 Bg4 f5 Bh5 Ra3 Rh7 Ra6 Ne7 g8N Qc8 d7+ Kd8 Bd2 c1Q Rf6 Nd5 Ne7 Nc6 Rg6 Nd4+ Ka5 c6 Nf3 g1Q Bb4 Qg2 Nbd2 b1R Ng5 b2 Rg1 Qg3 Bg2 Qd3 Bh1 Qcc3 Rg7 Rf1 Ng6 b1R Nh4 Bc5 Rg6 Rb8 a8B Rb3 Bb7 Ba7 Ba6 Rf3 Rb1 Re7 Bc4 Ne3 Be6 Nd5 Bg2 h1Q Rb2 Qf1 Bh1 h2 Rb1 Qh3 Rb2 Kc7 Rb1 Qc1 d8B+ Kb7 Bb6 Ra8 B6c5 Kc7 Bd7 Kd8 Ba3 Rf1 Bcb4 Rb8 Bb2 Rc3 Bd6 Rbb3 Bb4 Qd1 Bc1 Qde3 Nh7 Qh6 Ng5 Rcf3 Bc5 Rbe3 Rb7 Rb3 B5a3 Qc2 Bb4 Qd3 Ne6+
n5r1/1k1P2pR/qb2K2p/b2N1Bb1/rr3p1P/nR1n1RB1/7p/1NR1Nb2 b - - 0 1 illegal: No proof kernel
8/1Prq4/3npB2/rN1RbBNN/1Kp1r3/1BPbN1n1/pn1k1Rp1/4nq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 e4 d5 f5 dxe4 f6 gxf6 g5 f5 Qe2 f4 Qg4 hxg4 b4 Kd7 d4 Kc6 Kd2 Kd5 Kc3 c5 h4 f5 g6 a5 g7 a3 h5 a2 h6 a4 b5 f3 h7 f2 b6 e6 Be3 a3 Rh6 g3 Rh5 g2 Bb5 f1Q Nd2 Ra4 Rh4 f4 Rg4 f3 Rf4 f2 Rd1 a1R Ngf3 Ne7 g8B Bg7 Nc4 Nf5 Ng5 Ba6 b7 Nd7 Rd2 Rb4 Ba4 Nd6 Bb3 Be5 Bf7 a2 Bg6 Nb6 Bf5 Qd7 Rf3 Rb8 h8N Ra8 Ng6 Rc1 Bf4 e3 Rd1 e2 Ne3+ Kc6 Bg3 Kb5 Nf4 e1N Nh5 Ra7 Bh4 Nbc4 Rd3 Nb2 Rd2 Bg3 d5 Re4 Rd4 Be5 Rf4 Nf7 d6 Ka5 Rf3 Bd3 Rf4 Kb5 Rf3 Ra5 Rf4 Qd8 d7 Nd6 Rf3 Qc7 d8N Qd7 Ndf7 Qg1 Nd8 f1N Nc6 Ng3 Rf4 Qf1 Rf2 c4 Na7+ Kc5 Kd2 Kb4 Rd5 Rb1 Nf3 Rc5 Bf6 Rc7 Nb5 Nd1 Ba4 Rb3 Ng5 Ra3 Bb3 Ra5 Nc3 Ka3 Nb5+ Kb2 Bd8 Kb1 Be7 Nb2 Bf6 Rd4 Kc3 Kc1 Kb4 Re4 Rf4 Kd2 c3 Ra7 Rf3 Ra5 Rf2+
3n2b1/rr4Rp/Bk6/Np2rp2/BR4n1/PrBqp1bb/1P2R2N/K3bR2 b - - 0 1 illegal: No proof kernel
bN2Nn2/1q1p2p1/bp3n2/1P3RbB/rrB1kP2/B5p1/N1Rpp3/K1b2B2 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 f5 b5 fxe4 Qd3 c5 Qc4 cxd4 Qb4 axb4 Kd2 Kf7 f4 Kf6 c4 Kf5 Kc2 e5 Kb2 b6 h4 b3 a4 e3 c5 e4 c6 g3 a5 d3 a6 e2 h5 e1B h6 e3 c7 d2 h7 e2 a7 Bf2 Rh5+ Ke4 Rf5 Na6 Nf3 B2c5 Ra2 Nf6 Ne5 Ba3+ Ka1 Bfe7 Nc6 Nc5 Rc2 Re8 h8N Ba6 c8B Qc7 Bb7 Ne6 Nf7 Nf8 Nb8+ Qc6 Bb2 Qd5 Bc6 Rc8 Bb7 Rc4 Bc1 Rb4 Nd6+ Kf3 Nc3 b2+ Kb1 Bd8 Ne8 Qc6 Ka2 b1B+ Ka1 Ba2 Bb2 Bd5 Na2 Qc7 Bc6 Qb7 Bc1 Be4 Bd5 Ke3 Bc4 Bf3 Bb2 Ke4 Bc3 Bc1 Bb2 Nh5 Ba3 Bg5 Bf7 Nf6 Bh5 Ra4 Nc6 Rc8 Nb8 Rcc4 a8B Rcb4 Rd5 Qc8 Bc6 Qb7 Rf5+ Kd3 Bd5 Bg2 Bdf7 Ke4 Bg8 Qc7 Rfc5 Kd4 Bgf7 Ba8 Rf5 Qb7 Be6 Ke4 Bc4
N1kr3B/3r1bq1/KP1q1q2/2QP3Q/6q1/nN3b1r/1QbB2N1/1qnB4 b - - 0 1 legal: proof: c4 a5 f4 e5 a4 exf4 b4 b5 axb5 d5 b6 dxc4 b5 Bh3 Ra4 Bd7 Rb4 Bc8 h4 axb4 g3 f5 Nf3 h5 Ng1 f3 Rh2 f4 Rg2 Bd6 Qa4 f2+ Kd1 f3 Kc2 Bf4 gxf4 Kd7 Rg4 hxg4 Kb2 Ke7 Qd1 Kf8 Kc2 Ke8 d4 Kd7 e4 g5 b7 c5 h5 b3+ Kc3 g3 h6 g4 d5 b2 e5 g2 b6 g3 h7 Nc6 b8B Nh6 f5 Nb4 f6 Na2+ Kc2 c3 Kb3 c2 Kc4 Ng4 Kb5 c4 f7 c3 f8Q Ne3 Ba7 Nc4 Qd2 Na3+ Ka5 Rb8 Be2 f1B Qb4 f2 Bf3 Be2 Qbd4 f1Q Nh3 g1Q Q2d3 g2 Bh6 c1R Q3c4 c2 Nd2 b1B Qb2 Qc7 Qc5 Qd6 Bh5 Qff6 Nb3 Bf3 Nf4 Kd8 Bg4 Be6 Ka6 Bf7 e6 Rf1 Bh5 c1Q e7+ Kd7 e8N Bc2 Bg5 Rd8 Nc7 Kc8 Bb8 Qb1 Bh6 Nc1 Na8+ Qc6 Bc7 Qcd6 Bg5 Rd7 Bg4 Rd8 h8Q Qgd4 Qh5 g1Q Ng2 Re1 Bd2 Re3 Qh2 Qg7 Qh7 Q4f6 Qh5 Bfe4 Bd1 Rh3 Qe3 Bf3 Bb8 Qdf4 Be5 Qd6 Bf6 Qgg4 Bg7 Qff6 Bh8 Qgg7 Qe7 Qgd4 Qe3 Qdg4 Qc5+
NB1k4/1B3pPb/p2Q4/2rpPnb1/2B2r1r/1NQ1Q1r1/n7/Knr1N3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 d5 a4 e5 a5 exf4 a6 d3 axb7 a6 b5 Qb6 Ra4 Qc5 Ra1 Qa7 b6 g5 bxa7 g4 Ra4 Bd7 Re4+ Be7 Re3 Bc8 Rf3 Bf8 h4 h6 g3 h5 Rh2 Nd7 Rg2 gxf3 g4 Nb8 g5 Bh6 Rg3 Bf8 Rg4 hxg4 Kd2 f2 Kc3 g3 Kb2 d2 e4 g2 c4 f3 g6 Nh6 h5 Ng8 c5 Be7 c6 Bf5 h6 Kd8 h7 Bg5 Qe1 d1R Bf4 Nh6 Bc4 f1N Qe3 f2 Nd2 Rc1 Nb3 Nd2 Nf3 f1R Ne1 Nb1 Ka1 g1R g7 Rg3 c7+ Ke8 c8B Nc6 b8Q Kd8 Bd6 Nb4 e5 Na2 Qc3 Rf4 Bb7+ Kd7 Qf8 Rc8 a8N Rc5 Bb8 Bc2 Qe3 Nf5 Qc8+ Ke7 Qe6+ Kd8 Qc6 Re8 h8Q Bd3 Qhh6 Rh8 Qh3 Rhh4 Qe6 Nd6 Qh6 Bh7 Qc3 Nf5 Qg6 Rg1 Qhe3 Rg3 Qd6+
Qq5R/R2bnq1b/KB2k1rr/8/Q3rnB1/nP1n2Q1/q1P4b/1n2RB2 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Kd2 Ke7 Kd3 f5 Kc4 d5+ Kb4 a5+ Kc5 d3 h4 a4 e4 d4 h5 g3 h6 f2 g6 a3 e5 d2 b3 d3 g7 f3 b6 g2 Kb5 g1R b7 f4 e6 a2 h7 Bd7+ Kb4 Ra4+ Kc5 Na6+ Kd5 Qb8 Qe1 d1N Qa5 d2 Rb1 a1Q Ba3+ Nc5 Rc1 Re4 Rb1 Nb2 Be2 f1Q Qa8 d1N Bb4 f2 Rh3 f3 Bd3 Rg6 Ba6 Nd3 Ba5 N1b2 Bc7 Nc4 Bb5 Qa2 Bb6 Na3 Re1 Kf6 e7 Ne6 e8B Bd6 Qa4 Bh2 Ba6 Qg2 Rg3 f1B Rg5 f2 Re5 Nf8 Re7 Qf3 Bf7 Be2 Be6 f1N Bg4 Ne6 Bb5 Nd2 Bc4 Qe8 b8Q Ndb1 Qba8 Nef4+ Kd6 Qg3 Kc7 Qf7 Kb7 Bf3 Ka6 Bh1 Re5 Ne7 g8Q Bg2 Ra5 Bh3 Be2 Bhf5 Bb5 Ke6 Bg4 Rh6 Qg5 Rg8 h8R Rgg6 Qh4 Nh5 Qg5 Qb8 Qh4 Nhf4 Qg3 Nf2 Bf1 N2d3 Rc5 Rg8 Rc7 Rg5 Bge2 Bh7 Ra7 Rgg6 Bg4+
Q3b1Bn/r1rQ2n1/2n1N3/2Nr4/pq1PnbK1/nQ2P3/3NBBb1/6kq b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 h4 g5 c4 dxc4 f4 gxf4 b4 e6 g5 e5 Ra3 e4 Rf3 exf3 Rh3 Ne7 Rg3 Ng8 Rg4 hxg4 Kf2 Ke7 d4 Ke6 b6 Kf5 b5 Ke4 g6 a5 e3 c5 g7 f5 b7 c3 b6 c2 h5 g3+ Ke1 g2 Kf2 a4 h6 c4 h7 c3 Bb5 Nc6 b8Q Ra7 b7 Bd6 Qf1 Qe7 Bc4 Nh6 g8B Bd7 Qd8 Nf7 b8Q Be8 Ba3 c1R Qe2 c2 Nh3 g1N Qe1 Ne2 Qdc7 Ng3 Qb2 Nh5 Bb5 Ng7 Kg1 f2+ Kh2 Kf3 Qd7 f1B Ba6 Bg2 Qh1 Bc7 Qe6 Qb4 Ng1+ Kf2 Qbb3 f3+ Qe5 f4 Nd2 Bb8 Nc4 Kf1 Qd6 f2 Bb2 f3 Kg3 Bc7 Kg4 Bb8 Qd8 Bf4 Qc3 Re1 Bb5 c1Q Qd7 Qa1 Qa3 Rc1 Ne5+ Rc4 Nd3 Rc5 Bc3 Rd5 Qb3 Qc1 Qh4 Qd1 Ne2 Qe1 Ng3+ Kg1 Ne4 f1N Bc4 f2 Qhd8 Ng3 Nd2 f1N Qa8 Ne4 Nc5 Qb1 Be2 Rc7 Nc4 Qa1 Be1 Nfd2 Bh4 Nb1 Nd2 Na3 Bf2+ Kh2 Kh4 Qh1 Kg4 Nfe5+ Kh4 Ng6+ Kg4 Ra7 Be6 Rf8 Bg8 Rf7 h8N Re7 Nf7 Nh8 Nd8 Rf7 Bh4 Kg1 Nde6 Re7 Qdd8 Reb7 Qd7 Rc7 Bf2+
2bN1Q2/r3bQ2/1BN2Q1q/P2nKNPq/Br3r1k/1r1q4/2p5/n1r2r1B b - - 0 1 legal: proof: g4 a5 a4 d5 c4 g5 cxd5 e5 f4 gxf4 h4 h5 b4 axb4 g5 e4 Rh3 Nh6 Rf3 Ng8 Raa3 Be6 Rg3 Bc8 Rg4 hxg4 Rf3 exf3 Kf2 b5 e4 c5 d4 f5 h5 Kf7 e5 c4 h6 Kg6 a5 Kh5 h7 c3 e6 c2 d6 b3 d5 g3+ Ke1 b2 Kd2 b4 Kd3 g2 Kd4 b3 e7 Qe8 d7 Na6 d8N Nf6 d6 Ra7 d7 Nc5 Ba6 Nd5 Qd2 f2 Qe2+ f3 Nf7 f1R d8Q f4 Qe1 f2 Qc7 f3 Qd1 Kh4 Nd2 b1R Ne2 g1Q Ne4 b2 Ke5 Qh2+ N4g3 Nb3 Nd8 Na1 Be3 Rc1 Bb7 b1R Nd4 Rb4 N4c6 Qh5 e8B Be7 Bb6 Rf8 h8Q Rff4 Qb8 Re1+ Qe2 f1R Qf6 f2 Qa8 Red1 Qc4 Rd3 Qb8 Rdb3 Nf5+ Kg4 Qbd6 Qh6 Qf8 Q2h5 Qdf6 Kh3 Ne3 Kh4 Ba8 Nc7 Qcf7 Nd5 Bb7 Rfe1 Bd7 f1Q Ba8 Qh3 Be8 Ref1 Nf5+ Kg4 Bb7 Qd3 Nb8 Nc3 Bh1 Nd5 Ba4 Kh3 Nbc6 Kg4 Ne3+ Kh4 Nf5+
8/1R3K2/1NPkrpnQ/bnr1rr2/3Qb3/2qNq1PN/b2rQ3/1R4Rb b - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 g3 h5 Qd3 h4 Kd2 f3 Bg2 h3 Kd1 hxg2 Bf4 gxf4 Kc1 f2 Qd1 Qc7 Kd2 Qd8 Kd3 Ke7 Ke4 f1B Ke5 d5 h4 a5 b4 d3 c4 d4 e4 f3 h5 d2 b6 f6+ Kf4 a4 e5 a3 b7 a2 c5 f2 b5 d3 e6 Qd4+ Kf5 Qc3 Kg6 Nc6 b8N Nd4 h6 Ra5 b6 Bb7 Qg4 d1B h7 d2 Qe2 Bb3 Qe3 d1R Ne2 g1Q Nd2 Bfg2 Na6 f1R Nb4 Rde1 Rd1 a1R Nc4 R1a2 Nf4 Rd2 Rb1 Ba2 Nh3 Rf5 Qe5 Re4 Qd5 Qe1 Rg1 Rb5 Qe5 Bh1 Nd3 Bc6 Ra1 Bd5 c6 Ree2 Rf1 Bdf3 Rb1 Rd5 b7 Nb5 Nc1 Qf2 Rd1 Bfg2 b8R Re4 Nb6 Rc4 Qe2 Qfe3 Rg1 Rde5 Nd3 Be4 Rgc1 Kd6 Rf1 Kc7 Kf7 Bb4 e7 Ba5 e8Q Ne7 Rg1 Ng6 Qe6 Rc8 h8Q Re8 Qd5 R8e6 Qh6 Rc5 Qc4 Kd6 Rb7 Bb3 Qa4 Ba2 Qd4+
2R3NQ/2p2k1P/1bR4p/1rQ1rnn1/3Qb2r/2r4n/qNN1K2P/2b2rR1 b - - 0 1 legal: proof: d4 a5 b4 axb4 c4 d5 g4 dxc4 g5 Kd7 d5 Nh6 d6 Rg8 Bb2 Rh8 Bd4 Kc6 d7 Ng8 e4 Kd6 g6 e5 Na3 exd4 e5+ Ke7 Kd2 f5 Bd3 h6 Be4 fxe4 Nb1 d3 Ke1 Qe8 Qg4 Qf7 Qh5 Nf6 Qe2 Qg8 Qd1 Qh7 gxh7 Ng8 d8Q+ Kf7 a4 g5 f4 b5 f5 d2+ Kf1 g4 a5 g3 f6 g2+ Kf2 b3 a6 b2 a7 b4 Na3 b1R Nh3 g1N Qg4 d1R Qd6 e3+ Kg2 b3 Qd2 c3 Kg3 e2 Kf2 e1R Qgd7+ Ne7 Qe3 b2 Nc2 Rbc1 Nd4 b1Q Qd6 c2 Qc5 Nbc6 Nf4 Nf5 Ra6 Qa2 Nd3 Nd8 Rc6 Ne6 Nb2 Bb7 Qec3 Rd8 a8R Ng5 Rc8 Rd3 Q3b4 Rc3 Qa4 Rd5 Qac4 Re4 e6+ Kg6 f7 Rh4 Qd3 N1h3+ Ke2 Rf1 Rg1 c1B Nc2 Re5+ Qde3 Bd6 f8Q Ba8 Qd4 Bc5 Qfd8 Rf8 e7+ Kf7 e8N Bb6 Nf6 Rb5 Qee5 Re8 Ng8 Re7 Qee3 Re6 Qh8 Ree5 Qd4 Bb7 Rc4 Be4 Rc6 Red5 Qc5 Re5 Qed4
Q4QNR/n2p2k1/3rb3/3P1q2/3rq1NN/Kn3nQp/b1P2nRr/6Rq b - - 0 1 legal: proof: g4 a5 f4 g5 b4 gxf4 h4 axb4 g5 c5 Rh2 e5 Bh3 c4 Rh1 c3 Bb2 cxb2 Bf5 Bh6 g6 Bg5 Bg4 e4 Bf3 exf3 hxg5 Kf8 Nc3 Ke7 Nb1 Ke8 a4 Kf8 e4 h5 d4 b5 Kd2 f5 a5 b3 Kc3 f2 Kb4 f1Q a6 h4 a7 f3 e5 f2 e6 f4 e7+ Kg7 e8R f3 Qc1 Nf6 Rf8 Qe7+ Kc3 b4+ Kd2 Bb7 Ra5 Ng4 Re5 Nc6 Rc5 Qe4 Na3 b1Q Rb5 b2 Ra5 b3 Kc3 h3 Rf4 Rh4 Qe3 Qbe1+ Qd2 b1B Kb2 Ba2 Qc3 Re8 a8Q Na7 Qe3 Re6 Rf8 Rd6 Rh8 Bd5 Nc4 Be6 Ka3 b2 Ne5 b1R d5 Rd1 Rh2 Rd2 Rg2 Qf5 Qf4 Qee4 Qg3 Qa1 Rb5 f1N Rb1 f2 Ngf3 Nfh2 Rh1 f1N Rhg1 Nf2 Ng4 Rh5 Nh4 Nf3 Qc8 Re2 Qa8 N1d2 Nh6 Qc4 Rh1 Nfe4 Rf2 Nb3 Ng2 Rh4 Rd1 Rg4 Nh4 Qd3 Rh2 Rg2 Rb1 Nf2 Rc1 Rd4 Ng4 Qf4 Rb1 Qde4 Re1 Rg1 Rc1 Rh1 Rg2 Rh2 Rd1 Qc3 Ra1 Qce1 Rb1 Qh1 Rbg1 Qf8 Rh6 Kg8 g7 Rd2 Rh8+ Kf7 g8Q+ Ke7 g6 Qff5 g7 Rd4 Qgb8 Kf7 g8N Kg7 Qf8+
Nr3r2/2p3q1/B3Qr2/1pk1K2N/2Q3P1/r1Pr2NQ/1n2bbB1/3rBn1q b - - 0 1 legal: proof: e4 h5 f4 e5 d4 f5 g4 a5 b4 axb4 a4 h4 Ra3 g5 Rg3 hxg3 h4 Bh6 Rh2 Bg7 Rf2 Bf8 dxe5 fxe4 f5 Kf7 Rf3 Ke8 Rf4 gxf4 Ke2 Ke7 h5 d5 a5 g2 h6 f3+ Ke3 f2 Kf4 d4 c3 e3 h7 d3 a6 e2 a7 e1Q e6 Kd6 f6 b3 f7 b2 e7 d2 e8B Na6 Nf3 g1R Ng5 Nb4 Na3 b1R Qa4 d1R Bd3 f1R+ Nf3 Rg3 Bc6 Nh6 Nc2 Nf5 Ne3 Qf6 Bd2 Qg7 Nd5 Ne3 Nf6 b6 Ke4 Ba6 Nh2 Rf5 Bc4 Nd3 Nf1 Rb4 Kd4 Nb2 Bg2 Rb8 a8N Rb3 Qa2 Ra3 Bd3 Rgf3 Ng3 Qh1 Be1 Nf1 Qb3 Rg8 h8Q Kc6 Qh3 Bc5+ Ke4 Bf2 Nfh5 Rf6 f8Q Bc4 Qfb4 Rgf8 Q4a4+ Kc5 Ke5 Bb5 Qe6 Re3+ Bde4 Be2 Qab3 Red3 Bb7 b5 Ba6 Raa1 Qa4 Ra3 Qac4+
2rN1b2/Kpn1rn2/2P1R2Q/2RN1N1R/8/2Q1nbp1/Prn1r3/krq1Q3 b - - 0 1 legal: proof: g4 c5 e4 h5 b4 a5 d4 cxd4 f4 axb4 e5 g5 f5 f6 Bh3 Ra3 Bf4 Ra8 exf6 gxf4 g5 Ra5 Bg4 hxg4 Nc3 Ra7 Nb1 Ra8 Ke2 Bg7 Kd3 Kf7 Kc4 d5+ Kb5 e5 h4 d3 c4 d4 c5 b3 h5 g3 c6 f3 h6 d2 h7 e4 Nh3 d3 Qf1 d1R Qe2 e3 Qf2 d2 Nf4 e2 Ng2 e1R Rh3 b2 Rh2 Na6 Qe3 f2 Rh6 f1N Qg1 Nc7+ Kb6 Re2 Nh4 Ne3 Rh5 Nh6 Qe1 Re8 h8Q Re7 Nc3 Be6 Rb1 Rc8 Ka7 Bd5 Rc1 b1N Rc2 Bf3 Rc1 Qd3 Nd5 Qd4+ Rc5 Qc4 Nc3 Na3 Nd5 Rf8 Nb4 Rb1 g6+ Ke8 Nd5 d1R Qf1 Rdd2 Qe1 Rg8 f7+ Kf8 Ra5 Qc1 Rb5 Rc2 Rc5 Ba1 Qd4 Rcd2 Qb4 Kg7 Qa5 Rc8 f6+ Kh8 f8N Bd4 f7 Kg7 Nb6 Kf6 Ne6 Ba1 f8Q+ Nf7 Nf5 Bd4 Nd5+ Ke5 g7 Ke4 g8R Kd3 Qh1 Bg7 Nd8 Bh6 Rb5 Kc2 Rc5+ Kb2 Qe1 Ka1 Rg6 Rdb2 Re6 Nac2 Qac3 Bg7 Qh8 Bf8 Qh6
2nN1r2/np2RRqb/1p2nQpr/k1NK4/1QP2P2/6R1/nq1p4/b5QN b - - 0 1 legal: proof: d4 f5 e4 g5 exf5 c5 b4 cxd4 b5 g4 b6 axb6 f3 g3 Be3 Qc7 Bf2 gxf2+ Kd2 Qd8 g3 Ra4 g4 Ra8 g5 Qc7 g6 Qd8 g7 Ra6 Bc4 Ra8 Bd5 Qc7 Bf7+ Kd8 Bg6 hxg6 Qc1 Ke8 Qd1 Qd8 Kd3 f1Q+ Ke4 e5 h4 d3 a4 d2 f6 Qe7 h5 Qf2 a5 Nc6 h6 Na7 Qe1 d1N Kd5 e4 h7 e3 a6 e2 f4 Kd8 c3 Kc7 f7 d6 Qf1 e1N Ne2 Nc2 Qg1 Nd4 Ng3 Ne6 Rh3 Qb2 Nd2 Qd7 Nh1 Ne7+ Kc4 Kc6 g8Q Bg7 f8R Bd4 Rf7 Rb8 Ne4 d5+ Kd3 Kb5 Rg3 Bf6 Nc5 d4 Ke4 d3 c4+ Kb4 Qg7 d2 Raa3 Be5 Rae3 Ka5 Qf6 Rf8 h8N Nc3+ Kf3 Na2 Ke4 Qc7 Re1 Bd7 Re2 Nec8 Kd5 Qc2 Re1 Ba1 Re4 Qb2 Re5 Nc6 a7 Be8 a8Q+ N6a7 Rg7 Qe7 Nf7 Rh8 Re4 Rh6 Nd8 Bf7 Re1 Bg8 Rf7 Qf8 Ree3 Nd4 Re7 Qg7 Qe3 Bh7 Qb3 Nd6 Nde6 Rf8 Nd8 Ne6 Qc8 Ng5 Qg4 Ndc8 Qgd1 Ne6 Qe1 Bg8 Qg1 Bh7 Qb4+
1Q2q1Q1/1R2Rn2/1p2p1p1/RN1r4/3bP1N1/1K1P1pk1/3bbr2/1bNQqb2 b - - 0 1 legal: proof: g4 d5 c4 dxc4 f4 a5 b4 axb4 g5 e6 g6 Kd7 f5 Nc6 f6 Nce7 fxe7 Kc6 Bh3 Kd6 Bb2 Kd7 Bf6 gxf6 g7 f5 Bg4 f4 Bh5 Nh6 Bg6 hxg6 Kf1 Ng8 Kf2 Kd6 Ke1 Kd7 e8N f5 a4 c5 h4 b6 e4 c3 h5 b3 h6 f3 h7 c4 a5 f4 a6 c2 a7 c1B Nd6 c3 Ra5 b2 Ra2 f2+ Ke2 f1B+ Ke1 c2 Na3 b1B Nab5 f3 Ra1 Ba6 Ne8 Nh6 g8Q Nf7 Ra5 Bg7 Ne2 Bd4 Nf6+ Ke7 Rh3 Qe8 Ng4 Rd8 a8R Rd5 Rb8 Kd7 Rb7+ Kc6 Nbc3 Kd6 Rh5 Ba3 Nc1 Bb4 Re7 Bae2 Raa7 Ba5 d3 Bb4 Rab7 Ba5 Na2 c1Q Rg5 Qe3 Nc1 Qg1 Kd2 Qf2 Nb3 Qe1+ Kc1 Bb4 Kb2 Ba5 Nc1 Bb4 Ne3 Ba5 Kb3 Bb4 Rg3 Ke5 Rg5+ Kf4 Nb5 Bd2 Ng4 Kg3 Re5 Qa8 Qb8 Rc8 h8Q Rc2 Qhg8 Ra2 Qa7 Qe8 Qb8 B2e3 Qf8 Rd7 Qc2 Bd1 Nc7 Bg5 Ra5 Rd5 Qg8 Bh6 Kc4 Bf4 Qa4 Rf2 Nb5 Bde2 Qb3 Nh6 Qd1 Nf7 Qd8 Bfe3 Kb3 Bd2 Qb8+
K1RrQ3/1Q1nkr2/2pn4/N1q2rPB/n3rQbQ/B1P2nn1/1r6/7Q b - - 0 1 legal: proof: h4 a5 a4 g5 e4 d5 Ke2 b5 b4 g4 Ke3 Kd7 f3 gxf3 g4 dxe4 g5 Ke8 g6 Bg7 Na3 Bf6 Nc4 Bg5+ hxg5 Qd7 Ne5 f2 Nef3 exf3 Rb1 Nh6 axb5 Qd5 b6 Ng8 b5 Qd8 Rb4 axb4 Ke4 e5 d4 h5 d5 f5+ Ke3 b3 d6 b2 g7 b1N b7 c6 b6 h4 d7+ Ke7 Bb5 f1N+ Kd3 f2 Kc4 e4 Kc5 e3 Ba6 h3 Bd3 h2 Be2 f4 Ba3 f3 Bc4 e2 Qe1 Nfd2 Bf7 f1R Qh4 e1R Ne2 f2 Nd4 Nh6 g8Q Qf8 Nb3 Nf5 Na5 Nd6 Bh5 Nc3 Qd5 Nf3 Qd1 Re4 d8Q+ Ke6 Qb1 Bd7 Qc8 Ke7 Qc1 Bh3 Qcg4 Rh7 Qgf4 Rf7 Qa1 Rb1 Re1 Nd5 c3 Bg4 Re3 Rb2 Qh1 f1R Rd3 Ne3 Rd4 Nec4 Rd5 Nc8 Rd8 N8d6 Rc8 Rbf2 Kb4 Nd7 b8Q Rb2+ Ka4 Rff2 b7 Rf1 Qa7 Rf5 b8Q Rff2 Qe1 h1N Qab7 Ng3 Qeh1 Rf7 Q8a7 Rb8 Qae3 Rf1 Nb3 Nb6+ Ka5 Rff2 Ka6 Na4 Ka7 Rf5 Na5 Rf7 Rc7 Rd8 Qee1 Qg7 Qe2 Qe5 Rc8 Qc5+ Ka8 Nh2 Qfe3 R2f5 Qf4 Nf3 Qc4 R7f6 Qg8 Rf7 Qe8+
4Qn1q/q1p1KP2/4n2b/N1N2R1r/1NB3n1/2N1b3/1N1kpqP1/1n2Q1r1 b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 Ra5 dxc4 Ra4 Qd6 Ra1 Qd8 e4 fxe4 b4 a5 b6 Bb7 b5 Ba6 Ra4 Bc8 f4 Nf6 h3 Be6 Bb2 Ng8 Rb4 Bg4 hxg4 axb4 f5 g6 Be5 g5 Bf4 gxf4 Kf2 Kf7 d4 Kf6 d5 Kg5 b7 e5 f6 h5 b6 c3 f7 c2 d6 c1B d7 e3+ Kf3 e4+ Ke2 f3+ Ke1 Kf4 g5 e2 Kf2 e1N g6 h4 g7 h3 Rh2 b3 Nd2 b2 Bc4 Nc2 Qf1 Nh6 g8Q b1N Rh1 Qc8 d8N h2 Nc6 Nd7 b8N Ra1 b7 Nd4 Nb4 Ne6 N8c6 Qa8 b8N Bg7 Qd8 Ndf8 N8a6 Qa7+ Nc5 Rh7 Qe8 e3+ Ke1 f2+ Ke2 Bd4 Kd3 Ng4 Na5 Rh5 Ne2+ Kf5 Nc3 Kf4 N5a4 e2 Nb2 Be3 Nde4 Bcd2 Rg1 h1Q Nc5 Qh4 Rh1 Qf6 Rh3 Qh8 Rg3 Nh2 Rg5 Ng4 Ba6 Bc1 Kc4 Bcd2 Kd5 Bc1 Qe1 f1Q Bc4 Qf2 Qf1 Bd4 N3e4 Ke3 Nc3 Kd2 Rf5 Be3 Kc6 Nh7 Kd7 Nhf8+ Ke7 Bh6 N4d3 Kc2 Qd7 Bce3 Qe8 Kd2 Nb4 Qg3 Qf3 Qf2 Qf4 Na3 Qf3 Rg1 Qf4 Nb1 Qf3 Qg3 Qf1 Qf2 Qe1+
4Q1Kn/r1PNp3/2Q1Q3/4rn1r/N1p1p3/2bQRb2/PQ1pq3/3k1B1q b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 dxc5 h5 gxh5 axb4 c4 b6 c6 b3 c5 b2 c7 bxa1Q c6 Qf6 Be3 Qa1 Bc5 bxc5 Bg2 Kf7 Kd2 Kf6 Ke3 Ke5 f4+ Kf5 h4 g5 h6 d5 h5 g4 h7 g3 h6 c4 Rh3 Bg7 Nf3 Kg4 f5 Nd7 f6 Nb8 f7 Qd7 f8Q Ra7 Qf6 Qd6 Qd2 Nd7 Nc3 Nf8 Kd4 Qh1 Na4 Ng6 Bf1 g2 Qc2 Bf5 c8Q g1R c7 Qdh2 Kc5 d4 Kd5 d3 Qcb2 d2 Qc6 Bc3 Ne5+ Kf4 Q8e8 Bg4 Nd7 Bd1 Ke6 Rg5 Kf7 Re5 Rg3 Q2g2 Rh3 Qf3 Kg7 Ke3 Qf7 Kf2 Qfe6 Ke1 Rg3 Nf6 Rh3 Ng4 Rg3 Ne3 Rh3 Rc8 h8Q Nf5+ Kf7 Be2 h7 Kd1 Qg7 Re8 h8Q Qf2 Qh5 Rh8 Qf3 Rh5 Qf8 Nh8+ Kg8 Qfh2 Qd3 Bg4 Qe8 Qe2 Re3 Bf3 Qd8 Qhh2 Qda8 Qh1 Qe8
2nRnQrq/1Qq2krQ/1q1Bq3/3pr3/1b5Q/1N1n2Qq/4BPP1/5K1b b - - 0 1 illegal: No possible last move, all moves rejected
1Q2b2q/b2n2Nn/rpK3n1/2BQ4/1R1QP1Q1/n2nQ3/2qPBr1k/b4r2 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 g5 a3 a5 Bb2 axb4 Bc1 g4 a4 h6 Ra3 h5 Rf3 Qd7 Nc3 Qd8 Ne4 Bd7 Nf2 gxf3 g4 Bf5 g5 Bc8 Ng4 hxg4 Kf2 Ke7 e4 Kd6 h4 Ke5 g6 f5 d6 c5 g7 b3 d7 c4 a5 g3+ Ke1 g2 Kf2 c3 h5 c2 a6 b2 h6 b1N a7 Nf6 g8Q Bg7 h7 Na3 Nh3 g1B+ Ke1 f2+ Ke2 f3+ Ke3 f4+ Kd3 Qe8 d8Q Nbd7 Qf7 Rf8 h8Q Nh7 Be2 f1N Qa2 f2 Qh4 f3 Qb1 Nh2 Qd8 f1Q Qe1 f2 Nf4 Nf3 Nh5 Nh4 Rh2 Ng6 Qg8 Bh8 Ng3 Kf4 Rh3 Ba1 Nf5 Rf6 Qe6 Qh8 Ng7 Rf7 Rh5 Kg3 Rb5 Kh2 Qg4 Rf6 Bb2 c1N+ Kd4 Nd3 Kd5 Qh3 Rb3 f1R Bd4 R6f2 Rb4 Qg3 Qb3 Qc7 Qa4 Qc2 Bc5 Nb8 Qb3 Bd7 Qc4 Be8 Qd4 Nd7 Kd6 Rb8 a8Q Rc8 Qa7 Ra8 Qab8 Ra6+ Kc7 Rf7 Qdg5 Be3 Qgd5 R7f2 Qa8 b6 Qd8 Bf4+ Kc6 Bb8 Qc8 Ba7 Qb8+ Rf4 Bd1 Rf2 Qee3 Rf1 Be2 Rf2 Qa8 Rf1 Qb7 R4f2 Qb8+
3q2b1/2PQ3Q/rknR3P/Rn5Q/n1Q1Knb1/p1B5/3b1r2/1nrb1NQ1 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Bh3 g5 Nc3 h6 Nd5 h5 Nf4 gxf4 g5 Nc6 Be6 Nb8 Bg4 hxg4 Kf2 d5 e4 Kd7 c4 Kc7 b4 f5 h4 a5 e5 g3+ Kf1 a4 g6 d3 g7 d4 c5 g2+ Kf2 a3 h5 d2 c6 d3 e6 Nd7 h6 Nc5 e7 Kb6 e8Q Ra6 c7 Na4 Ne2 g1N Qh5 Ne7 g8Q Nh3+ Kf1 f2 Kg2 f1B+ Kf3 Nc6 Qdb3 d1N Qbc4 d2 Rg1 Ndc3 Bb2 d1B Rg5 Bc5 Rc1 Be3 Qh7 Rf8 Rc2 Be6 Rd2 Bg8 Rd6 Bd2 Qd7 Nf2 Qh7 Bh3 Ba1 Nd3 Bb2 Kb7 b6 Nb5 Bc3 Bg4+ Kg2 Be3 Ng3 Bd2 Nf1 f3+ Kg3 f2 Kg2 Nbd4 b5 f4 Qd7 f3+ Kg3 Ka8 b7+ Ka7 Rf5 Nf4 Re5 Nc5 Red5 Kb6 b8Q+ Nb7 Qbc8 Nc5 Qh7 Na4 Qcd7 Rf7 Ne3 f1R Rf5 Rh1 Nf1 f2 Re5 Kb7 b6 Rf6 Ra5 Nb5 Ne3 f1N+ Kf2 Nh2 Nf1 Nf3 Kg3 Bc1 Kf2 Nd2 Ke3 Nb1+ Ke4 Rg1 Qce6 Bd2 Qc4 Ka8 b7+ Ka7 Qe2 Kb6 Qd3 Rf5 b8Q+ Kc5 Qbc8 Kb6 Qc4 Rh1 Nh2 Rf1 Qdg7 Rf2 Nf1 Rd5 Qcd7 Rd3 Bf6 Rc3 Be5 Rc1 Bc3 B4e6 Qg2 Beg4 Qg1
1N5Q/Nb1N1KNn/Q1q4r/2N1q2k/qb2r2P/8/1pP1b1bB/rr3R1n b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 f5 f6 exf6 Ra5 Bb5 Ra4 Bf1 Ra8 a4 Ra7 g4 Ra6 Ra3 Ra8 Rf3 h6 Rf4 gxf4 g5 h5 Be2 Ra7 Bf3 Ra8 Bg4 hxg4 Kd2 Kf7 Kd3 d5 h4 b5 a5 e5 a6 g3 a7 g2 Nf3 g1Q Be3 b3 Qe2 b4 Nbd2 b2 Nh2 b1R Qe1 e4+ Ke2 b3 Qf1 b2 Qc1 Qg4+ Ndf3 d3+ Kd2 d4 Bg1 Na6 Ne1 f3 Nf1 f2 Ne3 f1B Bh2 Bg2 Rf1 Nc5 Qd1 Qe8 Qe2 Rb8 a8N Rb4 Nb6 Bb7 Nc8 Qc6 Na7 Rh6 g6+ Ke8 g7 Kf7 Nd5 Ra4 Nc7 Raa1 Na6 Qf4+ Qe3 Qe5 Qe2 Qa4 Qd1 Be7 Nb8 Bd6 Qc1 e3+ Kd1 d2 Ke2 d1R Nd3 Ne4 Nc5 Re1+ Kd3 e2 Qe3 Qc6 Kc4 Nf2 Qa3 d3 Qa6 Qee8 Kd4 d2 Kc4 d1B Kd4 Ne7 g8N Ng6 Ne7 Nh1 Kc4 Kf8 f7 Kg7 f8N Kf7 Nfd7 Nf8 f6 Nh7 Nf5 Kg6 f7 Kh5 Kd4 Be7 Ke5 Bf8+ Ne6 Bb4 f8Q Qa4 Qg8 Qc8 Qh8 Qcc6 Rf2 Rf1 Nec5 e1Q+ Re2 Rf4 Ng7+ Kg4 Re3 Be2 Rf3 Rc4 Rf1 Rd4 Nge6 Kh5 Kf5 Qc8 Ke5 Re4+ Kd6 Qc3 Ke7 Qe5 Kf7 Qcc6 Ng7+
1b1rk3/B7/RbqR1r2/1QRb3b/6P1/qQ2r2r/nn1pPR2/n2RNK2 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 g3 h5 Bg2 Ne7 Bf3 Ng8 Nc3 gxf3 g4 h4 Ne4 Qe7 Ng3 hxg3 Qd2 Qf6 Qd1 Qd8 h4 a5 c4 f5 b4 d5 c5 f2+ Kf1 a4 b6 d3 c6 a3 b7 d2 c7 a2 h5 d4 h6 d3 h7 Nd7 b8R Qe7 b5 Qa3 b6 Ne5 b7 Nf6 Qb3 d1Q+ Kg2 f1R Rb1 a1N Rh6 d2 Qc4 f3+ Kh1 f4 Rh2 f2 Kg2 f3+ Kh3 g2 Rb5 Nd3 Qa4 Qc2 Rb6+ Qc6 Rb5 Nb2 Qd1 Ne4 Rd5 Nc3 Qb3 Na2 Rd6 Be7 Rh1 Bd8 Rh2 Bf5 c8R Bg6 Rc7 Bf7 Rbc8 Bg6 b8Q Bh5 Q8b5 Rb8 Rb7 Ra8 Rcc7 Bf6 Kg3 Rd8 Rb6 Bd4 Ra6 Ba7 Rc8 Bb8 Rh1 Rf8 Rh2 Rf6 Kh3 Re1 Rc7 f1B h8R+ Rf8 Rh1 f2 Nf3 g1B+ Kg3 Rd1 Ne1 Bg2 Rhh6 f1R Rhf6 Rf7 Rf2 Bd5 Kh3 Rf3+ Kg2 Na4 Bb2 Re3+ Rf3 Rb1 Bd4 Nb2 Ba7 Rc1 Rc8 Rcc3 Rc7 Re7 Rc8 Bb6 Rc7 Re4 Rf2 Rh3 Rg1 Qd7 Rc1 Qc6 Rc5 Ree3+ Nf3 Rc1 Rd1 Rc4 Kg1 Rf4 Ne1 Rf6 Kf1
Nr2b3/1Pn4K/2Pk4/N1p1rN2/7Q/3nBpnb/rN2RnQ1/q2N1nb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 b4 exf4 b6 c6 b7 Qa5 Ra2 Qc7 Ra1 Qd8 c4 Qa5 c5 Qa6 e3 Qa5 b5 Qc7 b6 Qd8 Bb5 cxb5 c6 d6 Ra4 Qc7 Rc4 Qd8 Rc5 dxc5 Ke2 Ke7 Kf3 a5 Ke4 h5 g4 f5+ Ke5 b4 d4 f3 g5 f2 e4 f1N d5 f4 g6 f3 g7 h3 Ba3 b3 Bc1 a4 Qd4 a3 Qb2 a2 Na3 a1R Ne2 h2 Nc4 h4 Be3 h3 Nc3 Nd7+ Kf5 Ngf6 Kg6 Re1 b8Q Ra2 e5 Ne8 e6 Nc7 Qg2 b2 Nd1 Re2 Rg1 h1N Qa7 h2 Qa4 Rg8 Kh7 Ne5 Qb4 Nd3 d6+ Kf6 d7 Ke7 Qa4 b1B Ncb2 Nhg3 Qh4+ Kd6 e7 Qe8 d8N Bh3 Rh1 Qf7 Rg1 Qf6 Rh1 Re1 Rg1 h1N e8N+ Ke5 Nb7 Nhf2 Na5 Bd6 b7 Kd5 Bd2 Re5 Be3 Rf8 g8N Bc2 Ng7 Rb8 Ne8 Ke6 Nh6 Ke7 Kg8 Bb3+ Kh7 Bf7 Ng7 Be8 Ne6 Rh5 Rh1 Be5 Rh2 Kd6 Na4 Bd4 Nab2 Na8 Nc7 Re5 Nd5 Nc7 Nb6 Qe6 Na8 Qb3 Na4 Qb1 Nab2 Qa1 Qh1 Nfe4 Re2 Nef2 Qg2 Ng4 Bg5 Bg1 Be3 Ngf2 Nf5+
2N4R/3B1Pq1/n2p1b2/2Pbk2r/1R2bRR1/1r3q2/1pQKbqn1/Q2R1b2 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 axb4 e5 f6 exf6 cxd4 Nf3 g6 Ng1 g5 g4 Qb6 f4 Qa5 f5 Qd8 Bf4 h6 Nd2 gxf4 Ndf3 h5 g5 Qb6 Ne5 Qd8 Ng4 hxg4 c4 Kf7 a4 b5 h4 e5 h5 e4 c5 e3 a5 e2 a6 d6 h6 g3 h7 b3 a7 b4 Nf3 b2 Nd2 b1B Rh3 b3 Ne4 g2 Ng3 g1Q Qc2 f3 Kd2 e1Q+ Kd3 b2 Ra6 f2 Ra5 Bb7 Rh4 Bd5 Rf4 Nh6 Ra3 Bg7 Bh3 Na6 Ra1 Rb8 a8Q Ng4 Ra4 Rb5 Rb4 Qf8 Qa7+ Qee7 Kd2 d3 Rfd4 f1B g6+ Ke8 Qa8+ Kd7 f7 Bf6 g7 Ne3 g8R Ng2 Rgg4 Qg7 f8R Qe4 Qa7+ Rb7 Qa8 Qf3 Rdf4 Rb5 Re8 Rb6 Re1 Rbb8 Rd1 Ke7 Ra4 Rb3 Rab4 Qgf2+ Ne2 Bg5 f6+ Ke6 f7 Ke5 Qa7 Bf6 Qa8 Qh4 Nd4 Qhg3 Nf5 Qh4 Ne7 Qhg3 Rc1 Qff2+ Kd1 d2 Nc8 Qge3 Rh4 Qc3 Bd7 Qh3 Rhg4 Qhg3 Qc4 Bbe4 Qd3 Qgf3+ Kc2 Nc7 Qa1 Na6 Rd1 Q2g3 Re1 d1B+ Kd2 Bde2 Qc2 Qgf2 Rb1 Rf8 h8R Rg8 Rhh4 Rh8 Rd1 Rh5 Rh1 Rg5 Rh6 Rh5 Rh8
3KN1Rr/3p4/nB3rBk/2rQn3/2np2Br/Q2PB1Br/Pb3r2/q2b4 b - - 0 1 illegal: No possible last move, all moves rejected
2r1q1Q1/4k1B1/2n4r/RqQ2KpB/2QQP2r/p2bb1b1/N6P/nbr2Q2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 e5 e4 d3 Nc3 h5 Nd5 hxg4 a4 b5 Ne3 f5 axb5 f4 Ra6 fxe3 Rd6 Rh5 Rd5 Rh8 Rd4 exd4 c4 d5 f4 a5 c5 g5 f5 a4 c6 a3 b6 e2 Kd2 e1R c7 g3 b7 g2 b5 Nh6 f6 Bd6 f7+ Ke7 b6 Bg3 Qb3 Qe8 Qd1 Ng4 Be2 Ne3 Bg4 Nc6 b8Q Rh4 b7 Nc2 Qe2 Na1 Bb2 Rc1 Bh5 Be6 Qa7 Rc8 b8Q Bg4 Nf3 g1B Ne1 Bf3 Qe3 Be2 f8Q+ Ke6 Qbb4 Rd8 Qc4 Rc3 Bg6 Na5 Qef4 Rd6 Qb5 Rc5 Qh8 Ke7 Bf5 Rdh6 c8Q+ Rc7 Qca6 Nc6 Bg6 B1f2 Q7b6 Rc8 Qg8 Bf1 Nc2 Be3+ Kd1 d2 Bh5 Bc4 Rf1 Ba2 Ke2 d1R Kf3 d3 Bg7 d4 Qbd5 d2 Qab5 d3 Qbd4 Bb1 Nb4 Rc1 Qa2 d1Q+ Qe2 d2 Na2 Qa4 Qec4 Rh3 Kg4 d1B+ Qf3 Qb3 Qfe2 Bd3 Rf5 B1c2 Qf1 Bb1 Rd5 Rh4+ Kf5 Qb2 Qbb6 Qb4 Ra5 Qb5+ Qbc5+
3r3B/2b1Pp1Q/B3NRp1/n1n1k1b1/2B4P/br2qB2/K3b2q/1B1nQn2 b - - 0 1 legal: proof: a4 b5 b4 c5 f4 cxb4 Bb2 a5 Bc3 b3 Bb2 b4 Bc1 b2 Ra3 Ra6 Rf3 Ra8 Rd3 b3 Rd4 Bb7 Re4 Bc8 Rb4 axb4 e4 d5 g4 h5 f5 hxg4 Nc3 e6 fxe6 Qd6 e5 Qd8 Ne4 dxe4 c4 Ke7 h4 b1Q d4 b2 Kd2 b3 Kc3 e3 d5 e2 c5 e1B+ Kc4 g6 c6 g3 a5 g2 c7 Qd6 a6 Nc6 a7 Rb8 a8B Bd2 Ne2 g1B Nf4 Bb6 Qe1 Nf6 Bd3 Ne4 Rf1 Nc5 Rf2 Qa2 Bb1 Qa7 Bb7 Bd7 c8B Bc7 Ba8 Be3 Ba6 Na5+ Kc3 Bb5 Rf3 Kd8 e7+ Kd7 Ne6 Bg5 Rf6 Be2 e8B+ Ke7 Beb5 Rg8 B1d3 b1N+ Kb2 Nd2 Bbc4 Nf1 Bb1 Rb6 Ka3 b2 Ka2 Rb3 Bd2 Kd7 Bc3 Be7 Bd4 Rd8 B8b7 Ne4 Bc3 Qe3 Bd4 Nc5 Bc3 Qc6 d6 Qg2 Bf3 Qh2 Bd4 Ne4 Bc3 Kc6 d7 Ba3 Ng7+ Kc5 e6 Kd6 Bd4 Nc5 Bc3 Qd4 e7+ Ke5 Ne6 Bc1 Bf5 b1N Bfd3 Bg5 Bb2 Nbd2 Bb1 Ne3 Bc3 Nd1 Bb2 Rc8 d8Q Nf1 Qh8 Rd8 Qh7 Kd6 Rf4 Qe4 Bg7 Qe3 Rf6 Ke5 Bh8
r5R1/r2QqQKP/8/b4p1k/2rQp3/Q1rBP2b/q1qq4/q3BQnN b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 g5 d4 gxf4 a4 c5 g5 h5 Na3 e5 Nb5 e4 Ra3 Nc6 Rg3 Ne5 Rg4 hxg4 dxe5 Qe7 Nd4 cxd4 Qd2 Qf6 Qd1 Qd8 Kd2 d5 h4 b5 c4 f3 e6 d3 Ke3 f2 Kd4 g3 Ke5 g2 e7 d4 a5 b3 e3 d2 c5 b4 h5 b2 h6 b1R h7 b3 g6 d3 c6 b2 c7 Ra7 g7 Bh3 c8Q f5 a6 Kf7 Qc5 Kg6 Qb4 Nh6 e8Q+ Nf7+ Ke6 Qe7+ Kd5 Ra1 Qc2 b1Q g8Q+ Kh5 Qcc6 d1Q Bd2 Ra3 Qc1 Qdc2 Qd4 Rc3 Ne2 g1R Qd7 Ng5 Be1 Nf3 Qf7+ Rg6 Rg1 d2 Rg4 d1Q Qa3 Qdd2 Ng3+ Kh6 Bd3 f1Q Nh1 Rgc6 Rg2 R6c4 Rg8 Ng1 Qa1 Qba2 Qd1 Qg5 Ke6 Bb4 Qf3 Ba5 Qe2 Qf3 Qf1 Qfd1 Ke5 Qda1 Ke6 Rb7 a7 Qd8 a8Q Ra7 Ke5 Qf8 Kf6 Qc5 Rg6+ Kh5 Qaf8 Qc7 Qa3 Rha8 Rg8+ Kh6 Qfe6 Kh5 Kg7 Qd6 Qed5 Qe7+ Qf7+
1bBB4/3Bk2b/2r1r1nb/3p1p1n/bK2N3/P3pnP1/1R2Bb2/1Q1qQ2B b - - 0 1 illegal: No proof kernel
3R3n/b2r1P2/K3nr1n/pB2r2Q/3p3q/bQB3kn/1QNP1p2/Q1q1Q3 b - - 0 1 legal: proof: c4 e5 h4 b5 a4 bxa4 b4 g5 b5 Ba6 b6 Bb5 cxb5 gxh4 e4 f6 f4 Na6 Ra3 Nb8 Rf3 Na6 f5 Nb8 Rf4 Nh6 Nc3 Ng8 Nd5 exf4 e5 Qe7 e6 Kd8 Nb4 Ke8 Nc6 Qd8 Ne5 fxe5 Ke2 Ke7 Kd3 Kd6 Kc4 h5 g4 c5 e7 a5 e8Q a3 f6 h3 g5 a2 g6 a1B g7 h2 b7 e4 f7 h4 b6 e3 Kb5 c4 Bd3 c3 Bf5 c2 Be4 f3 Ne2 h3 Bb2 c1Q Bh7 Nc6 Qb3 Nge7 g8Q Ra6 Nc3 Ke5 Na2+ Kf4 Qb4+ Nd4+ Ka4 d5 Qbb5 e2 Be4 e1R Qg2 Ng6 Qbc6 Qh4 Nc3 Ba3 Nd1 Ne6 Qf1 Kg3 Kb5 Re3 Bf6 Bd4 Bd3 Re5 b8Q Rh6 b7 Nh8 Qcd6 Ba7 Qc5 Rd6 Ne3 Rd7 Ka6 Rg6 Bb5 d4 Nc2 Rh6 Be7 Rg6 Qd1 Rf6 Re1 h1N Re2 Qb2 Qa1 h2 Qd5 Qc1 Bb4 Nf2 Bc3 Nh3 Rg2+ Kf4 Rg8 h1N Qe7 f2 Rd8 Kg3 Qf3+ Kh2 Qh5 Ng3 Qe8 Nf5 Qe7 Nh6 Qe8 Nef4+ Qe6 Re4 Qbe5 Kg2 b8Q Kg3 Qd5 Re2 Qb3 Re5 Qbb6 Qg4 Qbb2 Qh4 Qeb3 Ne6 Qc6 Qe1 Qe4 Qc1 Qe1
3qRR1K/1kqP1Br1/N2p1Q1R/4pP2/2p1b2r/2br4/1nRn2p1/bRQ5 b - - 0 1 legal: proof: c4 b5 e4 f5 g4 fxe4 a4 h5 axb5 hxg4 d4 d6 c5 Ba6 d5 Kf7 Be3 Qc8 c6 Qd8 Bc5 Bc8 Qf3+ Kg6 Nd2 dxc5 d6 Bf5 Qd1 Bc8 d7 Kf6 Nc4 Kf7 Nd6+ cxd6 Kd2 Ke6 Kc3 g5 h4 a5 b4 g3 f4 g4 c7 a4 h5 g2 h6 g3 b6 a3 b7 e3 b5 e2 h7 e1Q+ Kd3 Kd5 b6 Kc6 Ne2 g1R Ke4 a2 Kf5 Qc3 Kg6 Na6 b8R Bg7 f5 Nf6 b7 Nb4 Qc1 Ra3 Nf4 Ne4 Rb1 a1B Bc4 Nd3 Bf7 Nb2 Rh6 Nd2 Ne6 c4 Nc5 Qa5 Na6 Bc3 Ra8 e5 Kg7 Rb3 b8R Bb7 c8R+ Qac7 Ra7 Kb6 Rba8 Be4 Rb7+ Kc6 Rab8 Qh4 Re8 Qhd8 Rb4 Rg2 Ra4 Rg1 Ra2 Ra3 Ra8 Kb7 Rf8 g2 Re8 Rh1 Rc8 Rf8 h8Q Rh4 Kh7 Rg8 Qf6 Rg7+ Kh8 Bb4 Rf8 Rd3 Re8 Bc3 Rf8 Qe7 Rce8 Qed8 Nb4 Na4 Rc2 Nb2 Na6
QN5R/KQn1Q3/Q1p5/1Q3pn1/2r1n1N1/P2PBq2/q3bpp1/b1k3nr b - - 0 1 legal: proof: c4 d5 cxd5 h5 f4 e5 g4 exf4 b4 a5 a3 axb4 Bh3 f3 g5 g6 Bf5 gxf5 Ra2 Ra5 Rc2 Ra4 Rc4 Ra8 Rh4 f4 Rg4 hxg4 Kf2 Ke7 h4 Kd6 e4 Ke5 d6 Kd4 d7 Kd3 h5 f5 e5 b5 h6 b3 g6 g3+ Ke1 f2+ Kf1 c6 g7 b4 h7 b2 e6 b3 e7 Ba6 e8Q Nh6 g8Q Nf7 Qe5 Ng5 Nc3 b1Q Qde2+ Kc2 Nb5 b2 Qgg7 Qa2 Nh3 b1N Nc7 Nc3 Q5b5 Nce4 Qf7 Qe8 d8Q Bg7 Qde7 Ba1 Kg2 f1N Nf2 Qd7 Ng4 f3+ Kg1 g2 Rh2 Nf6 Kf2 Ng3 Ke3 f2 Rh5 Nfe4 Qg7 Re8 h8Q Qdd5 Qhf8 Rc8 Rh8 Ra7 Qf1 Ne2 Qfg8 Ng1 Qg7f7 Bb7 Na6 Rf8 Qfg7 Rf6 Qc8 Rh6 Qgf8 Rh2 Qcc7 Bc8 Qcb7 Rh1 Qfc4+ Kd1 Qg8 Be6 d3 Bf7 Qgc8 Bh5 Qa8 Rd7 Qcb7 Rd8 Nf6 Be2 Ng4 Rd6 Bd2 Rdh6 Bc1 R6h4 Bd2 Nd7 Nb8 Ndf6 Q5a6 Ne8 Qcb5 Nc7 Bc1 Nc3 Bd2 Qf3+ Kd4 Kc2 Kc5 Nce4+ Kb6 Kd1 Ka7 Kc2 Ba5 Kc1 Bb6 Nf6 Nh6 Rc4 Ng4 Nfe4 Be3+
1N2rQ2/b4pBp/rn1Q1P2/Qq2NK2/ppn4Q/5bp1/q4Pr1/2R1Q1k1 b - - 0 1 illegal: No possible last move, all moves rejected
k1b1Qb2/2p5/1Qqp2K1/Rr1P4/2Q3bp/QpN1n1p1/p3P1n1/1QNB1r2 b - - 0 1 illegal: No possible last move, all moves rejected
QrN1k3/2p1n3/Rr4pR/q1P1R1P1/b1K1Q2n/3n1R2/4rBqb/1R1n2rb b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 g5 fxe4 Bh3 d5 Kf1 h5 Nc3 d4 Bg4 hxg4 Nce2 d3 Kg2 dxe2 c4 e1R a4 b5 d4 e5 h4 e3 f4 g3 Kf3 g2 Ke4 e2 Kd3 e4+ Kd2 g6 f5 b3 Kc3 e3 a5 b2 a6 b1B c5 b4+ Kc4 b3 a7 b2 f6 Na6 h5 Nb4 h6 Be4 h7 b1N d5 Nc3 d6 Rb8 a8Q Ne7 Qd4 Rb6 Ra6 Bd7 Nf3 g1R Ne5 Ba4 Nc6 Nd3 Na7 Nd1 Nc8 Qd7 Rh6 Bh1 Qde4 Qg4 Bb2 Qf3 Bd4 Qg2 f7+ Kd7 Rh4 Bg7 Rf4 Nc3 Rf1 Be5 f8R Bh2 R8f3 Rf8 Na7 Rfb8 Nc8 Ke8 Qeb7 Reb1 Qd5 e1Q Qe4 e2 Bf2 Qd2 Rc1 R1b2 Rb1 Nd1 h8R+ Kd7 Rh4 Qa5 Rh6 Ke8 Re3 e1N d7+ Kf8 Reh3 Nf3 d8R+ Kf7 Rd7 Ke8 Rd5 Re2 Re5 Nh4 Rf3
rr1nn3/3p1p2/3bb2N/N2BQNK1/2nR1P2/1rqn1pk1/Q1NP2N1/5b1n b - - 0 1 legal: proof: f4 a5 h4 g5 a4 gxh4 b4 axb4 Nh3 c5 Rh2 e5 Ng1 e4 Ra3 c4 Rf3 exf3 Bb2 c3 Rh1 cxb2 Kf2 Ke7 e4 Kd6 g4 b5 c4 h5 c5+ Ke6 a5 b3 g5 b4 g6 h3 Kg3 h4+ Kg4 h2 a6 h3 c6 Qe8 c7 Nc6 a7 Ba6 c8N Bb5 g7 Be2 e5 Nf6+ Kg5 Bd6 g8N Nd8 Na3 b1B Nb6 b2 Nh6 b3 Nd5 Bf5 Nc2 b1R Nde3 b2 Ng2 Qe7 Qe1 Ne8+ Kh5 Bed3 Ne2 Qf6 Nc1 Qg7 Rg1 h1N Nb3 h2 Na5 Nf2 Be2 Rb8 a8Q h1N Rf1 Rf8 Bd1 Qh8 Kg5 Bg4 Rg1 Bf1 Qa7 Nd3 Qa6 Kd5 e6 Qc3 e7 Be6 Be2 Ke4 Qa7 Nf6 e8N Rh8 Ng7 Ne8 Ngf5 Rb3 Qef2 Ra1 Qh4 b1N Qe1 Na3 Qa6 Nc4 Qa7 Nhf2 Rh1 Ra4 Rh5 Nh1 Qa1 Rab4 Qa2 Rb8 Qc5 Ra8 Bd1 Ndb2 Qe5+ Kd3 Nce3 Rf8 Bc2+ Ke2 Be4 Kf2 Bd5 Nd3 Nc2 Rg8+ Kh4 Nf6 Qe2+ Kg1 Ne7 Kh2 Re5 Nc6 Nef5 Rgb8 Kg5 Ne8 Re4 Nd8 Rd4 Kh3 Qe5 Kh2 Nfe3 Kg3 Nef5+
3Q2Qn/4qpK1/prb2B2/bBr1RP2/N1k1pBb1/4Pn1n/4b3/B3b1qB b - - 0 1 illegal: No possible last move
1b5q/B3bpr1/K1nBpPk1/3q3b/2R2B1n/1N2nrpB/1Q2PQB1/2r1r3 b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 f4 dxc4 g4 g5 f5 Ra7 Nc3 Ra8 Nd5 h6 Nf4 gxf4 g5 h5 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 h4 b5 d4 c5 Kd2 b3 Kc3 b4+ Kd2 b2 a5 b1R a6 b3 Kc3 f3 h5 b2 d5 f2 g6 g3 h6 Rh7 d6 Rg7 h7 Nh6 h8B Nc6 Bg2 f1N a7 Ne3 Bd2 e6 d7+ Ke7 Bf1 Kf6 Nf3 Be7 Rh4 Bb7 Nd4 Qf8 Qa4 Re1 d8B b1Q Bh3 Qe4 Bc7 Qd5 Nb3 Rb8 a8B Qg8 Kb2 c3+ Ka3 c4+ Bd6 c2 Qa7 c1B+ Ka4 c3 Rc4 c2 Qc5 Bb2 Kb5 c1R Kb6 Be5 Qd4 Ng2 Bf4 Nh4 Qc5 Ng4 Qf2 Bc8+ Bb7 Ne3 Ka6 Qh7 Bc5 Ra8+ Ba7 Bb8 Bd6 Kg5 f6 Rg8 Bg7 Qh8 Bf8 Rg7 Be5 Rh7 g7 Kg6 g8Q+ Rg7 Bf4 Bd8 Ba3 Be7 Kb6 Bd7 Bad6 Bc8 Ba6 Bb7 Ba3 Qe5 Qd8 Na5 Nd4 Bh1 Bb7 Nf1 Qe8 Qeh5 Qb5 Bf3 Bad6 Qf5 Qb1 Bh5 Bbg2 Nc6 Qb2 Qa5+ Kb7 Qd5 Bb6 Ra3 Ba7 Rf3 Nb3 Ne3 Ka6
rb2KQ1q/r5B1/4bP2/1Qr1p3/q3b1k1/Q1P1B1N1/p5Qp/B5qR b - - 0 1 legal: proof: b4 b5 d4 c5 a3 Nc6 a4 cxd4 axb5 a5 Be3 a4 Bf4 Ra6 Bc1 Ra8 e4 d5 Qf3 f5 Qe2 d3 Ra3 d4 Qd1 Na5 bxa5 Nf6 Qe2 Qc7 Qd1 Nd5 exd5 Qd8 h4 g6 g4 Kd7 g5 Qe8 h5 Ba6 Nd2 Qd8 Ne4 fxe4 Be2 Bc8 h6 Ke8 Bh5 Qc7 Rc3 Qb8 Rc6 gxh5 g6 Qd6 g7 Qd8 Rg6 hxg6 Kd2 Kd7 g8Q e5 f4 h4 h7 a3 d6 g5 a6 h3 a7 g4 c3 g3 f5 g2 f6 h2 Ne2 g1Q Qg2 Ke6 b6 Kf5 b7 Be6 d7 Bd6 Qb3 Bb8 Ng3+ Kg4 Qb5 Rf8 h8B a2 Bg7 Rf7 Bb2 Qh8 d8B Rd7 Qf1 e3+ Kc1 e2 Kd2 e1R Ba1 Re7 Qg2 Rb1 Bb6 Rb4 Bc5 Rc4 Bb6 Bc7 b8Q Rc5 Q8e8 Bb8 Qf8 Qe3+ Kd1 d2 Kc2 Qg1 Kd3 d1Q+ Ke4 d3 Qa4 d2 Qb5 Rc8 Bd4 Rec7 Be3 Qb3 Qa3 d1B Qf8 Bd7 Qa3 Qa4+ Kd5 Bc2 Kd6 Be4 Ke7 Rc5 Kf7 R8c6 Ke7 Ra6 Kf7 Be6+ Ke7 Qh6 Ke8 Qh8+ Bf8 Bc7+ Ke7 Rb8 a8Q Ra7 Bg7 Rf8 Qae8 Rg8 Qf7 Rga8 Qf8 Bb8+ Ke8
B3BR2/N1b3n1/1n2r2Q/3r3n/3n1n2/2BPQQ1B/1r3P1K/kn1brq2 b - - 0 1 legal: proof: c4 a5 b4 g5 h4 d5 cxd5 gxh4 a4 b5 axb5 axb4 d3 e5 Ra2 e4 Rd2 e3 Qb3 exd2+ Kd1 f5 e4 Ra1 Ke2 Ra6 Qd1 Ra8 e5 Nf6 Nc3 Ng8 Ne4 fxe4 g4 Kd7 e6+ Kd6 b6 Kc5 d6 Kd4 e7 Kc3 e8B h5 g5 c5 d7 b3 b7 b2 g6 b1N g7 c4 Nh3 e3 Kf3 e2 Kg2 e1R Bg6 Rh6 Ba3 Qf6 d8Q Bg4 Bb4+ Kb2 Qf3 d1R Qe8 c3 Qb5 c2 Ng5 c1N Qbd5 h3+ Kg3 h2 Ne6 h4+ Kg2 h3+ Kg3 Rd2 Qe3 Ne7 g8B Ka1 Qf5 Nd7 b8Q Bd1 Qef4 Nd5 Bd6 Nb3 B8f7 Ra5 Ng5 Rb2 Ne4 Nd4 Bh7 N7b6 Be5 Bd6 Qe8 Bc7 Nd6 Rc5 Qe3 Nf4 Nc8 Rd5 Qh8 Qg5+ Qg4 Re6 Na7 Qg8 Rg1 h1N+ Kh2 Ng3 Be8 Ngh5 Be4 Ng7 Qh6 Qh7 Qgf3 Qf5 Kg3 h2 Bh3 h1N+ Kh2 Ng3 Rh1 N3h5 Rg1 Rc5 Ba8 Rd5 Rg5 Qf6 Rf5 Qh4 Rf8 Qg4 Qg2 Qe2 Qgf3 Qf1 Bf6 Nde2 Bc3 Nd4 Qg3 Nb5 Qg2 Nd4 Qgf3
Q2b3b/2Q3bR/7P/N2P3R/n1RbQ2q/1n1K2b1/1qn3b1/B1k1Rnr1 b - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 e5 f4 exf4 g3 b5 axb5 a6 b6 Bg4 b5 Qd7 b7 Bf5 b6 Qd8 Bg2 Bc8 g4 h5 Ra4 f5 Na3 f3 Nb5 axb5 Bh3 f4 Ra5 Rh6 Ra4 Rf6 Ra1 Rf5 gxf5 Qd7 Kf1 Qd8 Bg4 hxg4 Kf2 Ra3 Ke1 Re3 Ba3 Re6 Bb2 Rh6 Bc1 Rh8 h4 Kd7 d4 Kd6 Kd2 Kd5 h5 Ke4 f6 g5 h6 c5 d5 g3 f7 g4 e3 c3+ Kc2 g2 Ba3 g3 Rh5 f2 Qb1 b4 Qc1 b3+ Kb1 Kd3 e4 b2 e5 c4 e6 f3 e7 c2+ Ka2 c3 Kb3 b1Q+ Qb2 Kd2 Kc4 Nf6 e8R Ng4 Ne2 g1B Qb4 c1B Re6 g2 Re7 Nd7 b8R Rg8 b7 Nc5 Re3 Bb2 Re8 Qh4 Re3 Na4 Qd6 c2 Ree5 c1B Reg5 Bh2 Ng3 g1B Ne2 Bh8 Bb2 Ne3+ Kb5 Bf4 Qe6 Nc2 Kc4 Kd1 Qg6 Bh3 Rg4 Bcd2 Bg7 Ba5 Nd4 Bd8 Nc6 Qc1 Rb1 Kd2 Ba1 Qb2 Re1 Bfe5 Re2+ Kc1 Kd3 Bgh2 Rc4 Bd4 Qf5 Rg1 Na5 Bg2 Re3 Bg3 Qe4 f1N Rbc8 f2 b8Q Nd2 R8c7 f1N Qa8 Bfe7 f8Q Ba3 Qff4 Nb3 Rh7 Bf8 Qc7 Bfg7 Re1+
5nKb/2Qr3Q/B2q2QN/Rnr1P1N1/n4r2/2N1P2Q/4rqp1/4r1bk b - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 e5 b5 exd4 f3 c5 Bg5 c4 Bf6 c3 Kf2 b6 Bh4 Bb7 Bg5 Be4 fxe4 Rh7 Bd2 cxd2 Ra2 Rh8 Rb2 Nh6 Rb4 axb4 a5 Ng8 axb6 Rh6 Qc1 Rh3 Qd1 Rh8 Kg3 Ke7 Kf4 Kd6 Kf5 g5 c4 g3 h4 g2 b7 b3 e3 b2 h5 g4 h6 d3 h7 g3 b6 Nh6+ Kf4 f5 Rh3 Ra2 Qc1 d1Q Qc2 d2 Rh4 Qe2 Qb3 d1N Rh2 Nc3 Na3 b1R Rh1 Re1 Nh3 g1B Nf2 Nf7 Nb1 Na4 Nd1 Bg7 Nd2 Qf2+ Nf3 Rae2 Nc3 g2 e5+ Ke6 c5+ d5 c6 Nd6 c7 Nb5 c8Q+ Nd7 Qc7 Nf8 b8Q Qd6 Kg5 f4 Qb1 d4 b7 d3 Qa7 d2 b8Q d1R Qg6+ Bf6+ Kh6 Rc1 Qge8+ Kf5 Ng5 Kg4 Qbc8+ Kg3 Qg6 f3 Qe6 Rg8 h8N Rg7 Nhf7 Rcc2 Rh4 Rcc1 Rc4 Kh2 Rc5 Kh1 Qg4 Rg8 Qab7 Bh8 Qbe4 Rg7 Qef5 Na7 Ra5 Nb5 Qfe4 Rcd1 Q4e6 Rd5 Qh7 Rc5 Q4g6 Qg3 Qg4 f2 Q4e6 Rd2 Be2 f1R Qef5 Qf2 Qfc8 Na3 Ba6 Rde2 Qh3+ Bh2 Nd8 Rd7 Ndf7 Nb5 Qg7 Ne6 Kh7 Nf8+ Kg8 Rd1 Qhf5 Bg1 Nh6 Rfe1 Qe7 Rd4 Qeh7 Rf4 Qh3+
N1b1RQk1/8/B3n2P/pr3R2/b1Q1K3/2PnR1q1/1bq2qQq/2Rr2q1 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 g5 Ra6 f3 Bf4 f2+ Kd2 Bg7 Nc3 Bf8 Ra1 gxf4 Ne4 h6 g5 h5 Nf6+ Ke7 Ng4 hxg4 Qb1 Ke8 Qc1 Na6 Qd1 Nb8 Kd3 a5 Ke4 d5+ Ke5 f5 e4 Ra6 h4 Kf7 b4 f3 b6 d3 c3 g3 h5 d2 b7 d4 h6 d3 b5 g2 b6 f4 Rc1 Nf6 Rh4 Nd5 Qb3 d1B Qa4 d2 Qa2 Ba4 Rh3 d1Q Rh4 Qc2 Rh5 Ba3 Ne2 g1Q Nd4 Qg8 Ne6 Bb2 Nc7 Qh2 Qa3 Nb4 Na8 Nd7+ Kf5 Ra7 b8Q Rb7 Ba6 f1Q Qc7 f2 g6+ Kf8 Rh3 f3 Qc4 Qfg1 Rg3 Rb8 b7 f1Q Rh3 f2 Re3 Qh5+ Kf4 Nc5 e5 Qhh2+ Kf3 Rh7 e6 Rd7 e7+ Ke8 g7 Rd1 Rb1 Nbd3 Rc1 Ne6 Ke4 Kf7 e8R Qf8 Qaa2 Qfh3 Qa3 f1Q g8Q+ Kf6 Qg2 Kf7 Rd8 Q3g3 Rd5 Qff2 Rf5+ Kg8 Nb6 Bcd7 Na8 Rc8 b8R Rc5 Rd8 Rb5 Re8 Bc8 Qxf8+
b1Q1R1n1/1b3PP1/2b2q1k/2Q1R1n1/2r1b1RB/K1pQ4/Qr1q1N2/4q2n b - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 b4 fxe4 b6 a6 b7 Bh3 b5 Bc8 b6 Qd6 Be2 Qd3 Bg4 Qd8 f4 g5 Nc3 Nd7 Nce2 Nb8 Bd7+ Kf7 Bb5 axb5 f5 Ke8 h4 Nc6 g4 Bd7 Nf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Ra5 Be6 Ra1 Bc8 d4 Kf8 Kd2 Kg7 Kc2 h5 Kb2 c5 d5 e5 d6 b4 d7 f3 Be3 c3+ Kb3 f2 Bf4 f1B Qf3 c4+ Kc2 e3 Bg3 h4 Qf4 b3+ Kb1 e2 Kc1 e1N Ra6 c2 Kb2 c3+ Ka3 c1Q+ Ka4 b2 Rh3 b1B Kb3 e4 Ra7 e3 Ra4 e2 Qg4 Nc6 b8Q Bb7 Qc4 Nf3 Qc8 e1Q Qc5 Nce5 Rg4 Qf6 d8Q Ra4 Qd3 Qcd2 Rh1 h3 Bh4 h2 Nh3 Re4 Ka3 Bg2 Nf2 Rc4 Rf1 Bc6 b7 h1B b8R Rh6 Rg1 Ba8 Re4 Ng4 Rb5 Bc2 Re8 Ba4 Ra5 B4c6 Rb5 Nfe5 Ra5 Bge4 Rg2 Nf3 Rg3 Ne3 Rg4 Nf1 Rb5 Ng3 Ra5 Kh8 g7+ Kh7 Rb5 Rh5 g6+ Kh6 Ra5 Ng5 Rb5 Ne7 g8Q Bhg2 g7 Nh1 Qf7 Ng8 Qfa7 Bcb7 Qa4 Bec6 Qb3 Bge4 Qa2 Qe5 f6 Qe6 f7 Qf6 Bg3 Rh2 Bh4 Qde3 Nh3 Rb2 Nf2 Q3d2 Q5f5 Bd7 Rbe5 Ba4 Qc5 Bac6 Qc8
3k1r2/2r2pq1/N1b1q1PQ/4N1QQ/1b5b/bBR1N3/2qN2PK/2qqq3 b - - 0 1 legal: proof: c4 d5 d4 a5 b4 axb4 a4 dxc4 d5 e5 Ra3 Qe7 Rd3 Qd8 Rd4 exd4 e4 g5 f4 Ra6 h4 Nc6 e5 Nf6 e6 Ra8 Bd2 Ne5 fxe5 Ne4 Bf4 gxf4 Nd2 Qe7 Nb1 Ng5 hxg5 Qd8 Kf2 h5 a5 b5 g6 c5 e7 f3 Kg3 d3 d6 h4+ Kh2 d2 a6 b3 a7 b4 Bd3 h3 Qf1 d1Q Kg3 h2 Nd2 f2 Bc2 c3 Nc4 b2 Ne3 b1Q Be4 c2 Qd3 f1Q Nh3 c1B Qd2 c4 Bd5 c3 Ng1 b3 Be6 b2 Nf3 c2 Bb3 Qfe2 Rg1 Kd7 e8N h1Q Nc7 Qf6 e6+ Kd8 d7 Qg7 Ne5 Bb4 Na6 Rf8 Qd5 Rb8 a8N Bb7 Nb6 Bc6 Nbc4 Rb7 Nd2 Rc7 Re1 Qhf1 Kh2 Qff6 Rf1 Qee1 Rf3 Qa1 Rh3 b1Q Qf3 Bca3 Qh5 c1B Rg3 Ke7 Rh3 Qbc2 Rg3 Kd6 e7 Qe6 e8Q Qab1 Qb8 Ke7 Qb5 Kd8 Qh6 Bcb2 Qe2 Qbc1 Qeh5 Be7 Rf3 Bh4 Rh3 Bb4 Rg3 Qec4 Rh3 B2a3 Rg3 Ke7 d8Q+ Ke6 Qdg5 Kd6 N3g4 Qe6 Nd3 Kd7 Nde5+ Ke8 Rf3 Qee4 Rc3 Qee1 Qe3 Kd8 Qeg5+ Qe7 Ne3 Qef6 Qf4 Qe6 Qfg5+
6RN/Q1nbPn2/1Q1rP1r1/qR3p2/nn4R1/k2p1Q2/5Q2/1rnK1B1b b - - 0 1 legal: proof: f4 a5 b4 b5 e4 g5 a4 e5 h4 gxh4 d4 exd4 e5 c5 e6 Bd6 Nd2 Be5 fxe5 Nc6 Ndf3 d3 Nd4 cxd4 Ba3 Nf6 axb5 Nb8 b6 Ng8 b5 Nc6 Bc5 Nb8 Bb4 axb4 c4 Ke7 g4 f5 c5 h5 c6 d5 b7 h3 g5 d2+ Ke2 h2 g6 b3 c7 b2 g7 b1R b6 h4 Ra3 d3+ Ke3 h3 Qe2 d1N+ Kd2 d4 Qe1 Nc3 Ra6 Bd7 c8Q Nd5 Ra3 Nc6 b8R Ra6 b7 Nc7 Qc1 Rh6 Qc4 Nb4 Qd5 Rd6 Ra5 Rg6 Nf3 Nh6 g8Q Nf7 Rg1 h1N Nh4 h2 Qf3 Ng3 Rb5 h1B Qg7 Ne2 Rg4 Nc1 Kd1 d2 Ra8 Ne8 b8Q Qa5 Qb6 Nc7 Qch8 Nba2 Kc2 d1N Rg8 Nb2 Qf2 Na4 Qh5 d3+ Kd1 Nb4 Qgh7 Be8 Qg7 Kd8 e7+ Kd7 Qa7 Kc6 e6 Bd7 Qf8 Qb6 Qfb8 Qc5 Qbb6+ Kd5 Rg1 Kc4 Qhf3 Kb3 Rg5 Ka3 Rg4 Rf6 Ng6 Qd5 Nh8 Rg6 Qaa6 Qa8 Qab7 Qa5 Q7a7
b7/n1q1P3/4Bppn/1n5n/2q3P1/nQ1B1r1q/1N1QQ2k/K1QBRn2 b - - 0 1 legal: proof: f4 c5 b4 a5 h4 e6 d4 b6 a4 g6 h5 Bg7 f5 exf5 h6 Ra7 hxg7 c4 b5 Rc7 Ra3 Rc5 Rb3 cxb3 Bd2 Re5 dxe5 Nh6 Bb4 Ng8 Na3 Na6 Nc4 axb4 a5 Nb8 a6 Nc6 Na5 bxa5 Rh5 Nb8 Rh4 Ne7 Rh1 Ng8 Kd2 Ke7 Kc1 Ke6 Kb2 h5 e4 d5 c4 d4 a7 d3 a8Q d2 b6 h4 b7 f6 c5 a4 c6 f4 c7 a3+ Kb1 h3 Ka1 f3 Qa6+ Nc6 b8Q h2 Qab6 b2+ Kb1 f2 Qb5 a2+ Kc2 b1N Kb2 a1Q+ Kc2 Qa6 Kb2 b3 Qd3 Bb7 Q1c2 d1Q Ne2 Rh3 Nc3 Na7 Qcd2 Nh6 Na4 Rf3 Ka1 Ba8 c8Q+ Qd7 Qcc3 Na3+ Qcc1 Qc7 Rg1 h1N g8B+ Qf7 Q3e3 Ng3 Qee1 Qc8 Bd3 Qc7 Qee2 Nh5 Rh1 Qg1 Qbb4 Qh2 Re1 f1N Qbc4+ Ke7 e6 N3b5 e5 Qh3 Q4c3 Kd8 e7+ Kd7 e6+ Kd6 e8B b2+ Ka2 b1N Nb2 N1a3 Qc4 Nd4 Ba4 Ndb5 e7 Qd5 Bd1 Qe4 Qf2 Ke5 Qb3 Kf5 Ka1 Kg4 Bd5 Qec4 Qfe2 Kg3 Be6 Kh2 g4+
R1Q1q2Q/1q3kP1/q4n1K/b2BP1r1/r4Bqn/3b1QrN/2B3r1/3rQq2 b - - 0 1 legal: proof: b4 e5 g4 c5 f4 exf4 d4 cxd4 Nc3 g5 Nd5 f3 Nf4 b6 a4 b5 axb5 gxf4 Ra6 Nc6 Rb6 Nb8 Rg6 Qc7 Rh6 Qd8 Rh4 h6 g5 h5 Rg4 hxg4 Kf2 d5 e4 f5 h4 a5 c4 d3 e5 d4 g6 d2 g7 a4 c5 a3 b6 a2 b7 a1R c6 d3 c7 Nc6 b8Q Ba6 c8B Nf6 h5 Nd4 b5 Ra4 h6 Bb4 h7 Kf7 b6 Qe8 b7 Ba5 Be2 g3+ Kf1 f2 Kg2 f3+ Kh3 f1Q+ Kh4 f4 Kg5 g2 Ba3 f2 Rh5 f3 Bd7 Nf5 Qd8 Nh4 Nh3 g1R+ Kh6 Rg5 b8Q Qg2 Qa1 d1Q Qdb6 f1Q Bc1 d2 Qf2 Bd3 Bc6 Ra7 Qg3 f2 Qc8 Qf3 Ba8 Qb7 Qf3 Rag4 Qb1 Rg2 Qa1 Qda4 Bd1 Qg4 Bc2 d1R Bf4 Qe2 Qac3 f1Q Qe1 Rf8 Bb1 Qa2 h8Q Qae6 Bc2 Qea6 Bd2 Qec6 Bc1 Rd8 Be3 Qe8 Bf4 Rd4 Nf2 Ra4 Nh3 Qbe7 Bc6 Qeb7 Bd5+ Qee6 Qfe4 Ra3 Qb8 Qab6 Q4e3 Bg6 Qhd8 Bb4 Q3f2 Rag3 Qf3 Bd3 Qa8 Ne4+ Kh7 Ra4 Rh6 Bc3 Qh8 Ba5 Qac8 Qd6 Rg6 Qdc6 Kh6 Qe8 Ba2 Qc4 Ra6 Nf6 Ra8 Be2 Bab1 Qca6 Be4 Bb5 Bbc2 Bd3 Bd5+
QR1k2b1/1R1r2PR/b2N1r2/Br1Rq3/1pK1P3/2n1Q1Q1/1bn5/3qnrq1 b - - 0 1 illegal: No possible last move
2q1bkQ1/n3b1p1/NB1q4/bBQ1q2r/1r5P/n2QB3/1RB2n1P/r2nK3 b - - 0 1 legal: proof: d4 e5 e4 exd4 a4 d3 b4 a5 e5 axb4 g3 h5 Nc3 f5 Nd5 h4 gxh4 c6 Ra3 cxd5 Rc3 Ra7 Rc4 Ra8 Rf4 d4 Re4 fxe4 f4 d5 c4 b5 f5 e3 a5 e2 a6 d2+ Kf2 e1B+ Ke2 d3+ Ke3 b3 f6 d4+ Kf3 b2 c5 b1R e6 b4 c6 b3 a7 b2 c7 Rh5 e7 Bd7 c8Q Nh6 Ne2 Nc6 Bh3 Ng4 Nc3 Nf2 Nb5 Ra1 Bf5 b1N Bh7 Rb8 a8Q Na7 Qc5 Qc8 Nc7+ Kf7 Kg2 Rb4 Kf1 Na3 Na6 Be8 Qdf3 d1Q Be3 d2 Bc2 d3 Rg1 Kg8 Rg2 Qb1 Qfe4 d1Q f7+ Kh8 Qed4 d2 Qd3 Qb2 Qad5 Qe5 Qa2 Bc6 e8B Be7 f8B Bb5 Qad5 Ba4 Qa8 Kg8 Bb5 Kf7 Bc4+ Ke8 Qb8 Bc6 Bb5 Kf7 Qa8 Be8 Qb8 Bd8 Bd6 Be7 Bc7 Kf8 Qa8 Qdg4 Bd8 d1N Bb6 Qge6 Qad5 Q6d6 Qa2 Nh1 Qe6 Bc3 Rd2 Nhf2 Ke1 Rd4 Qec4 Ba5 Qa2 Rb4 Qac4 Bf6 Qg8+ Ke7 Bca4 Bg5 Rb2 Bf6 Qgh7 Kf8 Bc2 Be7 Qg8+
q2B2BN/b3nb1n/knn2P2/n3q1Q1/1P1B4/5Qp1/RK4nr/B1Q1n1r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 g4 Ba6 b4 Bb7 Nc3 Bc8 Nd5 h6 Nf4 gxf4 g5 h5 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 a5 h4 e5 c4 d5 Kc2 Kd7 f6 Kc7 h5 Kb7 b6 f3 g6 a4 c5 e3 g7 a3 h6 e2 h7 e1N+ Kb1 d3 c6+ Ka6 b7 d4 c7 a2+ Ka1 f2 Bh3 f1N Bd2 e4 Nf3 e3 Rh2 e2 Qc2 g3 Qb3 Bc5 Bh6 d2 Bg4 d1Q+ Qb1 d3 Bd7 d2 Ba4 Ng2 Bf4 e1N Ng5 Ne7 g8Q Be6 c8Q Qe2 Qd1 Bf7 Be3 Ba7 Bb3 Nbc6 Kb2 a1N Bd4 Qe5 Qf3 Nfe3 Qc7 N3d5 b8B Nb6 Qg6 Na5 Qc1 Nac6 Bc7 Qe8 Bd8 Qf8 Bd5 Nb3 Qgf5 Nba5 Bb3 Rg8 h8B Rc8 Bg7 Rh8 Bh6 d1N+ Kb1 Nf2 Kb2 Ne4 Q5g4 Bg6 Nf7 Ng5 Ba2 Nh7 Bf4 Rc7 Qg5 Rd7 Be3 Bh5 Bc3 Rd1 Bed4 Qe8 Bc7 Qa8 Bd8 Rg8 Nh8 Bf7 Ka3 Rg6 Ba1 Rh6 Kb2 Rh4 Rh1 Rh2 Rf1 Nc2 Rf2 Rg1 Bb3 Nce1 Bd5 Bg6 Bg8 Bh5 Ka3 Bg6 Ra2 Bf7 Kb2
2q4Q/2RPB3/2Rr3q/b1Q3nq/2K1n1Q1/Pn3kp1/b1R1N2r/Rn1n3q b - - 0 1 legal: proof: g4 g5 b4 h5 c4 e5 f4 d5 cxd5 a5 Bg2 axb4 Nh3 gxf4 g5 Nh6 Bf3 Ng8 Bg4 hxg4 Nc3 Nd7 Ng1 Nb8 Nb5 e4 Nd4 Ke7 Ndf3 exf3 Ba3 Kd7 Bc1 Ke8 h4 Ke7 e4 Kd6 d4 c5 Kd2 b5 Kd3 f5 g6 f2 g7 f1Q+ Qe2 b3 a3 g3 h5 c4+ Kc3 f3 h6 b4+ Kb2 f2 h7 c3+ Kb1 b2 Ka2 b1N Kb3 c2 Qd2 f4 Qd1 f3 Bh6 c1Q Qc2 Ra6 Ne2 Be6 Ra2 Nc6 Rh3 Nc3 Rh5 Ne5 Qb1 Nf6 g8Q Qh1 Rb2 f1Q Bg5 f2 Rh6 Qc8 Qc2 Qfh3 Qg6 Nf3 e5+ Kd7 Qh5 f1N Qg4 Nfe4 Be7 Nd1 Qc5 Qh5 Rc2 Nfg5 Kc4 b3 Rf6 b2 Rf7 Bf5 d6 Ke6 d7 b1N d8R Rd6 Rd7 Bh6 Rc7 Bg7 Rc6 Nfd2+ Kb5 Nb3 d5+ Kd7 Kc4 Be6 Rf1 Qf4 Rg1 Qf6 Rf1 Qfh6 Rg1 Rf8 h8R Rf2 Rh7 Rh2 Re1 Ke8 Rg1 Kf7 Rf1+ Kg6 Rg1 Bg8 e6 Bc3 Re1 Rd7 d6 Ba5 Rf7 Ndc3 Rec1 Nd1 Rf1 Rb7 d7 Rb6 Rc7 Rd6 Bf8 Rd5 e7 Bf7 e8Q Rd4+ Kb5 Rd6 Re1 Kf6 Rg1 Bd5 Be7+ Ke5 Qh8+ Nf6 Qh3 Ke4 Re1 Kf3 Qg4+ Kg2 Rc6 Nfe4 Rc7 Na1 Rf1 Ba2 Rf6 Nb3 Kc4 Rd5 Rfc6 Rd6 Qe6 Kf3 Qeg8 Nbc3 Ra1 Nb1 Qe6 Qg7 Qh3 Qgh6 Qg4+
n1q1q3/Pq1p1b2/4P2Q/Q2kqqr1/1nR1N1rQ/K1N1b2b/8/3NQ1Bb b - - 0 1 legal: proof: b4 a5 g4 axb4 d4 c5 a4 cxd4 f4 h5 Bh3 g5 Ra3 e6 Rf3 e5 fxe5 Qb6 Rf4 gxf4 g5 Qd8 Bg4 hxg4 Kd2 Ke7 e4 Ke6 c4 f5 Kc2 b5 Kb3 f3 h4 d3 c5 d2 h5 g3 a5 f4 h6 f2 g6 f1B h7 f3 c6 g2 a6 f2 g7 Nf6 g8N Nd5 a7 Bc4+ Kb2 f1B c7 b3 Nh6 b4 Qf3 d1Q Ng8 Qc2+ Ka1 Bh6 Qe3 Qe8 Nc3 Bb7 c8Q Na6 Nb5 Nac7 Nh3 g1Q Nf2 Qh2 Nd1 Bh3 Nf6 Rg8 h8Q Rg4 Qd8 Qc3+ Kb1 b2 Qc5 Rc8 Be3 Na8 Bg1 Be3 Qh6 Rc6 Qd4 Rc5 Qa5 Qf4 Rh2 Qg5 Re2 Qgg8 Re1 Qc8 Re2 Qge8 Rc2 Qe1 Rc3 Ba2+ Kc2 Qg3 Rc4 b3+ Kd3 Nb4+ Kc3 Ke7 e6 b1Q e5 b2 Qdf4 Qf5 Ne4 b1Q Qf2 Qgf4 Qfh4+ Q4g5 Ng3 Qbe4 Kb2 Qb1+ Ka3 Bh1 Qh8 Qbe4 Q8h6 Qeb7 Ne4 Qgf6 Qf4 Kf8 e7+ Kf7 Qfg5 Ke6 Qf4 Kd5 Qfh6 Qg8 e8Q Qd6 Qeh5 Qge8 Qe1 Kc6 Qe2 Qf4 Rd4 Bf7 e6 Rcg5 Rc4+ Kd5 Qe1 Qde5 Qhh4 Qff5 Nbc3+
2qn3Q/8/kr1B1N2/n2q1r1Q/2rqb1pB/Q2P2KP/r1BBb3/bbR5 b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 e5 Ra3 exf4 Rg3 g5 c4 dxc4 axb5 Na6 Nc3 Nb8 Nd5 f3 Nf4 gxf4 g5 Na6 Rg2 Nb8 Rg4 hxg4 Kf2 Kd7 e4 f5 b6 Kc6 e5 Kb7 h3 c5 g6 a5 e6 c3 b5 c2 e7 a4 e8Q a3 g7 a2 Qe6 a1Q Qf6 c4 Qb2 c3 Qb3 Qd5 Qc4 Ne7 g8Q Rh6 Qa2 Bg7 Qe1 Nbc6 Qb1 Nd8 Qd1 Nec6 Bg2 Na5 Bb2 c1Q Qb3 c2 Bf6 Qad4+ Qe3 Bd7 Bf1 Bc6 Ne2 Ra6 Ng3 Ra7 Kg1 f2+ Kh2 f3 Bd3 f1B Ne4 f2 Qh8 f4 Bh4 f3 Kg3 Be2 Nf6 f1R Qa2 f2 Qa3 Ra8 Bf5 Bd3 Qg5 Be4 Qg6 Be8 Qh5 Bg6 Rg1 Bh7 Ne8 Rf6 Bg6 Rf5 Nf6 Re1 Rh1 f1B Rg1 Be2 Rh1 Kb8 b7 Ka7 b6+ Ka6 b8B Ref1 b7 R1f3+ Kh2 Rb3 Bd6 Rb6 b8B Rf3 Be8 Kb7 Qa4 Qda1 Qf5 B4d3 Bf4 Nb3 Qg5 Bhe4 Qgh5 Qae5 Qb4 Ra2 Nd7 Ka6 Bd6 Na5 Qa3 Qea1 Be3 Rf5 Kg3 Qc3 Bh6 Qcc4 Rd1 Ba1 Nf6 Qb2 Rf1 c1R Ba4 Bb1 d3 Qc8 Bd2 Rc4 Bc2 Qbd4 Rc1
R2K4/b1NBp1P1/1Pr2Qqr/4q2N/Q2q2bn/N3Q3/1qn1nbk1/N5b1 b - - 0 1 legal: proof: f4 b5 b4 f5 e4 g5 a4 c5 d4 cxd4 axb5 fxe4 g4 h6 f5 Rh7 Bf4 Rh8 Ra3 Nf6 Rg3 gxf4 g5 Ng8 g6 Na6 Rg4 Nb8 Rg5 hxg5 Kf2 d5 h4 Kd7 c4 Kd6 h5 Ke5 h6 a5 f6 a4 c5 a3 f7 g4 c6 g3+ Ke2 g2 h7 f3+ Kd2 Kf4 c7 Kg3 b6 d3 Ke3 d2 Kd4 f2 Ke5 a2 b5 a1Q+ Nc3 d4 b7 e3 Qb3 d1Q Na4 d3+ Qc3 e2 Nf3 e1B Nd2 g1B Nb2 Ra6 Nbc4 Qc2 Nb3 Bh6 f8N Rc6 Bh3 f1N Ne6 Qe8 Ng7 Bhe3 Bd7 d2 Nh5+ Kg2 Na3 Na6 b8N Nb4 Na6 Ba7 b6 d1Q g7 Qab2 Na1 Qcg6 Rh4 Nc2 Ra4 Qgd6+ Kf5 Qe2 Qf6 Qdd4 Ra5 Bef2 Ra4 Bb7 c8Q Qe1 Qd8 Bc8 Nc7 Qf7 Qe8 Ng3+ Kg5 Qfe6 Kg6 Q1e5 Ra6 Q6f5+ Kf7 Ne2 Ra4 Qg6+ Kf8 Bb8 Ra8 Ba7 Qef7 Bh4 Ke8 Bhf2 Kd8 Nh6+ Qf8 Nf5 Qe8 Rg8 h8Q Nh4 Qh6 Rh8 Qe3 Rh6 Qc1 Ba6 Qe1 Bc4 Qc1 Be6 Qe3 Bf5 Qg8 Bh3 Qc4 Bg4 Qa4
4bQ2/P4r2/P1qR4/1rk1rQR1/3n1npr/B1b3K1/1QQn2b1/1b1R2Nq b - - 0 1 illegal: No possible last move
2Q5/3n1n2/3Bnnbb/QqnpbrN1/BB1k2Qn/4B3/K2P3P/3q1bR1 b - - 0 1 legal: proof: f4 a5 b4 b5 c4 h5 a4 f5 e4 Ra6 g4 g5 Nc3 Rah6 Nce2 fxe4 f5 Re6 Nf4 gxf4 g5 Re5 Ra3 axb4 Rc3 b3 Rg3 b4 Rg4 Rb5 cxb5 hxg4 b6 Kf7 a5 d5 a6 c5 f6 Ke6 g6 Ke5 b7 b2 f7 b1Q g7 g3 a7 c4 a8Q e3 Qf3 b3 Kd1 b2 Bg2 c3 Qf2 c2+ Ke1 f3 Ne2 Nh6 g8Q Qa5 Qa6 Nd7 Nd4 e2 Qd3 Qb5 Bf1 g2 Nb3 g1N Qc5 Nh3 Qdc4 Ng5 Qf2 Ne6 Qd3 Bg7 f8B Nf7 Qg1 Bh6 Kf2 e1N Qgh7 Ng2 Nd4 Nh4 Ke1 f2+ Ke2 Rg8 Qc4 Rg5 Kd3 Rf5 Be2 f1B Kc3 Qa1 Qg4 b1N+ Kd3 Nc3 Rg1 Ne4 Ba3 c1N+ Kc2 Nef6 Bd1 Nb3 Bb4 Nbc5 Qh8 Qaa4+ Kb2 Qc2+ Ka3 Qb1 Ba4 Qd1 Qg6 Ke4 Qa2 Kd3 Nf3 Ke4 Ne1 Kd4 b8B Nc7 Qh5 e5 Bb3 e4 Qg4 Rf2 Ba4 Nb6 Kb2 Bf5 Bc2 Bg6 Qa5 N7e6 Ba4 Nbd7 Ka2 Rf4 Be7 e3 Qc8 e2 Bf8 Nce4 Bfe7 Rf5 Bf4 N4c5 Bed6 Kc4 Nf3 e1B Ng5 Bg3 Be3+ Kd3 Ka3 Be5 Bf4 Kc4 Ka2 Kd4 Be3+
1Q1rn2n/1n1q2n1/2rB1b2/QPBr2QQ/1p1Nn3/1P1B4/1n1n1k2/K4n1R b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 f5 b4 f6 Ba6 Be3 Bb5 axb5 exf6 Bh6 f5 Bc1 f4 g4 g5 Nc3 f3 Nd5 h6 Nf4 gxf4 Ra6 Ke7 Rg6 Ke8 Rg5 Qc8 Rh5 Qd8 Rh4 h5 g5 Qb6 Rg4 hxg4 Qd2 Qf6 Qd1 Qd8 Kd2 Ke7 e4 Kd6 c4 Ke5 Kc2 a5 Kb1 f5 h4 d5 c5 f2 b3 g3 c6 f3 g6 f4 c7 d3 c8Q Kd4 g7 d2 e5 Ke3 e6 g2 h5 d4 e7 a4 e8Q+ Be7 h6 d3 h7 a3 Ne2 g1N Qf5 a2+ Kb2 a1R Qc2 Qd7 Qg5 Na6 Rh3 Rc8 Rh2 Nc5 Rh4 Nf6 g8Q Nb7 Qg4 Rc6 Q4g7 Nh3 Qeg6 Ng5 Q7f8 Ne8 Qg8g7 Bf6+ Nc3 Nf7 Bg2 f1N Qe7+ Kf2 Q7h6 Ng3 Qd6 Nh5 Qe6 Nhg7 Qhh5 Ra8 Bh3 Rd8 Bf5 Rf8 Qe7 Nh8 Qgg5 Rf7 Qb1 d1N+ Ka1 d2 Rh1 Nb2 Qd6 d1N Ne2 Nc3 Qb8 Ne4 Nd4 Re7 Bd2 Re5 Qa2 Rd5 Be1+ Ke3 Qa4 f2 Qa5 f1N Bg3 Nfd2 Bh2 Kf2 Bg6 f3 Bd6 Nec5 Bd3 Nce4 Qgh6 Kg2 Bc5 f2 Q6g5+ Qg4 Bd6 f1N Bc5 Kf2 Bd6 Ng6 h8B Qd7 Bc5 Ne6 Bg7 Nh8 Bgf8 N6g7 Bfd6
rR2Q3/P3q2q/1p3pB1/Q1n2qPr/2bQN3/Kn1b1n2/R1Rr2k1/b3Q3 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 g3 Nc3 exf6 Nb1 f5 Qb3 f4 Qa4+ Nc6 Qd1 Nb8 Bb2 h5 Bd4 Qd6 Bf2 Qd7 Qa4 gxf2+ Kd1 Ne7 g4 Ng8 Kc1 Nc6 Qc2 Nb8 Qd1 Qd8 g5 Qf6 Na3 Qf5 Nc4 Qd7 Ne5 Qd8 Ng4 hxg4 Kb2 Kd7 a4 Kd6 d4 c5 e4 c4 h4 b6 a5 f3 a6 g3 a7 g2 h5 b3 h6 c3+ Ka3 b2 h7 b1Q Bd3 f1Q Be2 f2 Bh5 c2 Bf3 c1N Rh2 Ba6 Bg4 Ne7 Nh3 g1R Qe1 Rg2 Ra2 Bg7 Bf5 Nd7 Bg6 Nb3 Qa5 Nf5 e5+ Ke7 d6+ Ke6 Qe1 Kd5 e6 Bc4 e7 Ndc5 e8Q Qe7 d7 Nh4 Rc2 Nf3 d8R+ Qd7 Rc8 Qe7 Rb8 Be5 Qb5 f6 Qba5 Qd3 Ra2 f1B Nf2 Qf5 Ne4 Rd2 Rg2 Bfd3 Rc2 Rg8 h8Q Rg7 Qe8 Rh7 Rh2 Rh5 Ra2 Rd1 Rhc2 Rd2 Ng3 Kd6 d5 Ba1 Ne4+ Ke5 d6 Kf4 d7 Kg4 d8Q Kh3 Qh4+ Kg2 Qd4 Qh1 Qe1 Qhh3 Bf7 Qh7 Bg6 Qc8 Rc1 Qf5 Rcc2
4r1Q1/1rb3bK/1b6/3q3b/B2q1B1P/k1P3n1/pQ1QBp2/N1b1nQRr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 f5 cxd4 b4 f6 e4 Na6 Ra3 Bb7 Rf3 Nb8 Rf4 Bc8 Nd2 Bb7 Ndf3 exf4 e5 Ba6 e6 Bc8 Ne5 fxe5 Kd2 Ke7 Kd3 Kd6 Ke4 g5 h4 a5 b6 a4 e7 d3 e8B d2 b7 a3 f6 a2 Kf5 e4 Kg6 f3 b5 Kc5 b6 Kb4 f7 d5 Ne2 g3 Rg1 g2 Bd7 d4 Bb2 e3 Nf4 g4 Bc4 e2 Be8 e1B Bd5 d3 Be6 g3 Bc1 Nf6 Bh3 Qd5 Qe2 d1R Bhd7 d2 Bg4 Ra7 Rh1 g1B Qa6 g2 Bh3 Ne4 Qd3 Bg3 Bf5 Bg7 Ne2 Nd7 b8Q Rb7 f8Q+ Ndc5 Qf7 Be3 Nd4 g1B Bg4 Bc7 Ba4 Ng3 Nb3 Re8 Kh7 Bef4 Qe2 Nd3 Na1 Ne1 Qf6 Bd4 Rg1 f2 Qh6 Be6 Qf1 Bf7 Be2 Bh5 Qd8 Bfe3 Qe6 Bb2 c3+ Ka3 Qg5 Ra7 b7 Beb6 b8Q Rb7 Qgh6 Bbd4 Bc6 Nf3 Qg2 Rb3 Rh1 Rg1 Qhe3 d1Q Qf1 Ne1 Qg8 Bc5 Qf4 Q1d4 Ba4 Rb4 Bd2 Bc1 Qe3 Rb2 Qd3 Rb5 Bf4 Rb1 Qd2 Rb6 Rh2 Rh1 Rg2 Rb4 Rg1 Rb3 Qa7 Rb7 Qa5 Ba7 Qb5 Bab6 Qbb2+
2n2r1b/2bq2q1/1QkrQB2/2Bp4/1RP3B1/2bQ4/K2pP1b1/b1Nr1n1Q b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 b5 g5 h5 a3 h4 g6 fxg6 Nc3 g5 Ne4 g4 Ng3 hxg3 a4 c5 Ra3 c4 Rd3 cxd3 axb5 Rh5 Bd2 Rh7 Bc1 Rh8 Kd2 g5 c4 a5 f4 d5 h4 Kd7 b6 a4 h5 a3 f5 a2 b5 a1B f6 g2 b7 g3 f7 g4 h6 Bg7 f8Q Ne7 b6 Kc6 h7 Na6 b8Q Nb4 b7 Ra6 Qf2 Rf8 h8B Qd7 Qe5 Nc2 b8Q Ne3 Nf3 g1B Qf5 g2 Qe4 g3 Qde1 Bh2 Qbe5 g1B Bh3 g2 Ba3 Nf1+ Kc1 d2+ Kb1 d1R+ Ka2 d3 Bg4 d2 Qd3 Bf6 Qef5 Bfc3 Bf6 Bc7 Qfe3 Bgh2 Qfe6+ Bhd6 Qh4 g1Q Ne1 Rb6 Bc5 Qg3 Qef5 Bde5 Rg1 Bed4 Qh1 Qe5 Qg6 Qg5 Qgf5 Qg7 Rg3 Kb7 Qfe6 Rd6 Qc2 Kc6 Nd3 Bb7 Rg1 Nc8 Nc1 Ba6 Qch7 Bb5 Q7h3 Ba4 Qhh6 Bc2 Qg6 Bf5 Qd3 Be4 Qgh7 Rf7 Be5 Qh8 Qb1 Bg2 Qb4 Rf8 Nb3 Ne3 Qd3 Rb1 Rc1 Qf6 Rc2 Re1 Nc1 Rd1 Rb2 Nf1 Qb8 Qg5 Rb4 Qf6 Bf4 Qh6 Bg5 Bh8 Bf6 Qhg7 Qb6+
2q3n1/2NN1n1Q/1K1n1r1n/p3q1R1/2p1n1P1/k2Q2QN/r3P2N/b1qb1B2 b - - 0 1 illegal: No possible last move, all moves rejected
2b2Rn1/4R3/3r1pKb/1RP3Q1/q2q2Q1/pn3QPq/1R4rq/b2qNk1B b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 g3 Ra4 exf6 Ra6 f5 Ra1 f4 Nd2 h5 Ne4 h4 Be3 Qf6 Bf2 gxf2+ Kd2 Qd8 Ng3 Qb6 Nf5 Qd8 g3 h3 Nh4 Nc6 Ng2 hxg2 Qb1 Nb8 Qe1 Nc6 Qd1 Nb8 Kd3 Ke7 Ke4 Kf6 b4 Kg5 h4+ Kg4 c4 d5+ Ke5 a5 e4+ f3 c5 a4 h5 a3 h6 d3 h7 d2 b6 d4 b5 d3 b7 Ra6 b6 Bh6 Rb1 Qh4 Qb3 d1Q Rh2 d2 Qc4 Qe2 Rb5 d1Q Qa4 Qa2 Bc4 f1Q Bd5 f2 Nf3 g1B Ne1 Qfc4 Qb3 f1Q Qf3+ Kg5 Rhb2 Qfh3 Bc6 Qca4 Bd5 Ne7 Bc6 Rd8 h8R Rd2 Rf8 Rg2 Bd5 Q4g4 Bc6 Kh5 Kf6 Bd4+ e5 Bc3 Be4 Nbc6 b8Q Nd4 e6 Nb3+ Qe5+ Nf5 b7 Rd6 Qd4 Ne7 b8Q Ng8+ Ke5 Kg5 e7 Qd7 Bc6 f6+ Ke4 Qd8 e8R Qdd7 Re7 Qd8 Rb1 Ba1 Qb4 Qf2 Rb2 Qg1 Qa8 Qgh2 Qe3+ Kg4 Bd5 Qh5 Qg5+ Kh3 Kf4 Qd4+ Be4 Qhd1 Qd5 Qd7 Qa8 Re6 Kf5 Rd6+ Kg6 Rd2 Nf3 Kg2 Ne1+ Kf1 Bh1 Qdh3 Qe4 Rf2 Qc3 Re2 Qeg4 Rg2 Qcf3+
3R4/n1b3Qp/3p2qb/2N1nb2/PKP1r1r1/Nb3BQQ/k7/Q1r2nNr b - - 0 1 legal: proof: b4 a5 h4 axb4 e4 e5 d4 exd4 a4 g5 hxg5 f6 e5 c6 e6 c5 Ra3 c4 Rd3 cxd3 Bf4 Qc7 Bg3 Qd8 Be5 fxe5 Kd2 Ke7 f4 Kd6 c4 Kc5 g4 b5 e7 b3 e8N Kb4 f5 e4 f6 b2 g6 e3+ Ke1 d2+ Ke2 d6 Kd3 e2 f7 e1B g7 Nf6 g8Q Bh6 f8Q Bf5+ Ke2 d3+ Kf3 Nc6 g5 Nd7 Ke3 Qf6 Qf3 Kb3 Ne2 d1B Nc7 b4 Qg4 d2 Qe7 Ka2 Na3 b1R Qe5 b3 Bg2 b2 Ng1 Rc1 Ne6 b1N Nc5 Re8 Qg7 Rhg8 Bf3 Bb3 Qh3 Na7 Kd4 Qg6 Rh2 Re6 Re2 Re7 Qef6 Ree8 Re7 Ne5 Rd7 Bh4 Rd8 d1R+ Nd3 Nd2 Nc5 Ra1 Kc3 Rac1+ Kb4 Nf1 Rc8 Bf2 Rd8 Bd4 Nb7 Bb6 Nc5 Ng4 Qe5 Bc7 Qe1 Ne5 Qeg3 Qf7 g6 Re1 Qf6 Re4 g7 Qg6 Qh5 Rh4 Qhg4 Rh1 Q4h3 Ng4 Qd4 Re4 Qd1 Ne5 Qd4 Re8 g8Q Rg4 Qf8 Nf7 Qd1 Ree4 Qg7 Ne5 Qd4 Qf7 Qc3 Qg6 Qa1+
b3b1n1/2n4Q/q1r1B1qk/3p1Prp/1Qnp4/nN2P1R1/RQ2Kb1R/7R b - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 d4 exd4 Kd2 gxh4 e3 c5 Ra4 f5 Nc3 f4 Nge2 f3 Ng1 c4 Nce2 fxe2 Ra1 c3+ Kd3 Qf6 Bd2 cxd2 Qc1 Qb6 Qd1 Qd8 f4 Kf7 b4 Kg7 g4 e1N+ Ke2 a5 c4 h5 b6 h3 f5 a4 b7 h2 g5 a3 g6 a2 b5 Bd6 b6 Qf6 c5 Ra6 c6 Kh6 c7 Bg3 g7 Bf2 Qb3 d1N Nf3 Nb2 Qf7 Nc2 Nd2 Nc4 Nb3 Qg6 Bg2 d6 Bd5 Bd7 c8R Be8 Be6 N2a3 Rc5 Rh7 Ra5 Rh8 Rad1 a1Q Rd2 Ra8 Ra7 Na6 b8Q Nc7 b7 Qa2 Ra4 Ra6 Qd7 Rc6 Ra7 Nf6 g8R Rh7 Ra4 Rg7 Qe7 Qa1 Qa7 Qa2 b8Q Qa1 Qb4 Qa2 Qab6 Qa1 Rg1 h1B Qd7 Be4 Rh1 Qg2 Rdd1 Rc5 Rhg1 Ba8 Qd2 d5 Ra5 Nc2 Qbb4 Qg5 Rg2 Rc6 Rh2 Rg6 Rg7 Ng8 Rdh1 Qf6 Ra6 Rg2 Rg5 Qg6 Qdc3 Qa5 Qb2 Qb6 Raa1 Qa6 Ra2 N2a3 Qf7 Rg3 Qfe7 Rh3 Rgg2 Rg3 Qf7 Rg4 Rg3 Rg5 Qh7+
1BNbRb1K/nn1BBkpP/1r2q1Qr/8/4bq2/P1p3pQ/3Q1b2/2Qn4 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 e5 c4 h5 g4 hxg4 d4 dxc4 a3 Qd7 d5 Qd6 Nd2 Qd8 Nb3 f6 Nd4 exd4 e5 f5 Ra2 Ke7 Re2 Ke8 Re4 fxe4 Ke2 b5 f4 c5 h4 e3 a6 g3 Kf3 d3 Ke4 b4 d6 e2 d7+ Ke7 Kf5 e1B Kg6 c3 e6 b3 h5 b2 f5 b1Q h6 c2 f6+ Kd6 e7 Ke6 e8Q+ Qe7 d8Q d2 f7 c4 a7 c3 Ne2 Nf6 Bh3+ Ng4 Rg1 Bf2 Re1 Nc6 Qd4 Rb8 a8Q Nd8 Qg2 Bb7 Qdd7+ Ke5 Nd4+ Be4+ Nf5 Nb7 Qd3 Ke6 Re2 Rg8 Kh7 Qb4 Qdf1 d1N Bf4 c1B Qd2 Ne5 Re1 Bf3 Nd6+ Kf6 Bf5 Qe6 Qh3 Be4 Nc8 Nc6 Bd6 Na7 Qg1 Be7 f8B Bd8 Qc6 Kf7 Bc7 Qbd6 Be7 Qf4 Qa6 Na5 Qc6 Rb6 Bb8 Nb7 Qgh1 Bc7 Qg1 Bd6 Re2 Rd8 Qgh1 Rd7 Kh8 Bdc5 h7 Rd6 Qde1 B1e3 Qd2 Bed4 Qhe1 Bf6 Qc1 Bg5 Qed2 Bb4 Bf8 Bd8 Be7 Qd5 Bd7 Rh6 Bg5 Bf8 Re1 Bg6 Re8 Be4 Be7 Qe6 Qb5 Qc4 Qg5 Qe6 Qg6+
3K1bqq/q3Np2/5Pn1/2R1q2Q/RQpp1k2/BRr3P1/1rb4b/3QQb2 b - - 0 1 legal: proof: d4 a5 b4 axb4 c4 d5 e3 e6 Bd3 dxc4 d5 Ne7 d6 Ra6 Be4 Ra8 Bd5 Ng8 f4 exd5 h4 g5 f5 Nd7 Nc3 Nc5 Nce2 Ne4 Nf4 gxf4 Bd2 Ra3 Bc1 Ng5 hxg5 Ra8 Kd2 Kd7 a4 c5 g6 h5 f6 Ke6 a5 Kf5 d7 b5 a6 b3 Kc3 h4 g7 d4+ Kb2 f3 Ka3 h3 a7 b2 Qe2 b1Q Qd1 b4+ Ka4 b3 Kb5 f2 Kc6 f1B Nf3 b2 Ra4 c3 Ne5 c4 Ng6 Rb8 a8Q h2 Qb7 c2 Qb4 Qa1 Ne7+ Ke5 e4 b1Q Bb2 c1B Ba3 Kf4 e5 Qf5 e6 Rh3 Kd6 Qe8 Kc7 Rc3 d8R Qe5+ Rd6 Bd7 Rg1 h1Q Qh5 Nh6 g8Q Nf5 Qd1 Qh2 Qh8 Nh4 Qhh5 Ng6 Rh1 Qh4 Rh3 Be3 Rg3 Bg1 Re3 Bh2 Rg3 Qf5 Rd5 Bc6 Rda5 Be4 Rc5 Bc2 Re3 Bg7 Rg3 Qg8 Kd7 Rb5 Re3 Bf8 Kd8 Qe5 Rg3 Rb3 Rd3 Rb2 Rb3 Qa2 Nf5 Qh3 e7 Ra5 e8Q Qh4 Qhe2 Qhh8 Ne7 Ra7 Qh5 Rb7 Rh3 Rb3 Re3 Rc3 Qbb5 Bh6 Bb2 Rb3 Nc8 Qhh7 Rb4 Qa7 Ra4 Qg5 Ba3 Qhh8 Rg3 Bf8 Qee1 Re3 Ne7 Qe5 Qba5 Rb2 Qab4 Re4 Rd3 Re3 Rb3 Rc3 g3+
2r2B1B/1p5B/rQ5Q/3qrQpP/1P1RB1k1/1n1b2pn/2p1N2b/2rb1K2 b - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 h5 f4 e5 g4 hxg4 a3 exf4 Nc3 a4 Rb1 Nh6 Na2 Ng8 Rb3 axb3 a4 bxa2 e4 Kd7 d4 a1R h4 g5 e5 c5 d6 Ke6 h5 Kf5 d7 f3 e6 c4 e7 c3 e8B f2+ Ke2 c2 a5 Na6 d5 Bd6 Rh3 Nc5 a6 Nb3 a7 Ra5 Rh4 Nh6 Bg2 f1R Bb2 Bh2 d6 g3 Rd4 Re5+ Be4+ Kg4 Qd3 f5 Bg6 f4 Bh7 Rc1 Bc3 Qa5 d8B Qd5 d7 Rhe8 Be7 f3+ Ke3 f2 Ke2 Rh8 d8Q Rg8 Bf8 f1B+ Ke3 Rg6 Ne2 Ra6 Qb6 Bd7 Qdb5 Rc8 a8Q Bf5 Qb8 Bg2 Q8d6 Bf3 Nf4 Bd1 Ne2 Nf7 Q5a5 Nd8 Qh6 Ne6 Qab5 Nf4 Qd3 Na5 Kd2 Nb3+ Ke1 Nh3 Kf1 Re7 Rc4 Bg6 Bh8 Re5 Rd4 Be8 Qe3 Bb5 Qf2 Bd3 Qf5+
2q1Q2n/qp6/3Rb1Q1/1Nb2rq1/P1p1K3/bp1np3/2PB1k2/2Q1RQqR b - - 0 1 legal: proof: e4 d5 f4 e5 b4 a5 Qg4 axb4 Qd1 Ra5 Ke2 dxe4 Ke1 e3 Bd3 e4 Bf1 Re5 fxe5 Qg5 Ba6 Qf6 Bf1 Qd8 g4 g6 Na3 Qd3 Be2 Qd4 Nb5 Qd8 Nd4 h5 Nf5 gxf5 g5 Be6 Bf3 Bc8 Bg4 hxg4 Ke2 Ke7 d4 Ke6 h4 Kd5 a4 c5 e6 c4 h5 b3 h6 f4 h7 f5 g6 g3 e7 f3+ Ke1 g2 e8Q f4 g7 e2 Kf2 Be6 Qh5+ Qg5 Nh3 g1B+ Ke1 f2+ Kd2 f1Q Bb2 e1Q+ Kc1 Qff2 Qe8 Nc6 Bc3 f3+ Bd2 Nge7 g8Q Ne5 Qgg6 Rg8 Kb2 Nd3+ Kc3 Rg7 h8Q Rf7 Qhh7 Rf5 Qc1 Qfe3 Qh4 f2 Qhh7 f1Q Nf2 Qfh3 Nd1 Qhg4 Qh3 Q1g3 Rb1 Qb8 Ra1 Qc8 Rb1 Bf2 Re1 Qg1 Ra1 Kd6 d5 Ke5 d6 Qa7 d7 Bc5 d8R e3 Rd6 Kf4 Rb1 Nc6 Ra1 Nce5 Rb1 Nf7 Ra1 Qaa8 Rb1 Ba3 Kd4 Nh8 Nc3 Qa5 Nb5 Be7 Qh2+ Kf3 Qh3+ Kf2 Ke4 Qa7 Qb2 Qh2 Rh1 Qhg3 Rbe1 Qg1 Qc1 Bf8 Ra6 Bfb4 Rd6 Bc5 Qf1+
1Qb1qBK1/1p4P1/n1Rn2pp/1Q2pBr1/b7/1Qr3P1/pn1r1B2/1Q2Nk2 b - - 0 1 illegal: No proof kernel
5bn1/4pbkb/r1rpP1r1/1KBP2Bn/5R2/2b1Q2r/Bb1N3q/1QQr1B2 b - - 0 1 legal: proof: g4 c5 b4 a5 a4 f5 g5 f4 g6 c4 Ra3 axb4 Rb3 cxb3 Nc3 hxg6 Ne4 g5 Ng3 fxg3 Bb2 g4 Ba3 Na6 Bc1 Nb8 h4 Kf7 f4 b5 c4 g5 d4 b2 Kd2 b1R Kd3 d6 e4 g2 c5 g3 e5 b3 c6 g4 a5 b2 a6 b4 Kc4 b3 a7 Nd7 h5 Kg7 c7 Ndf6 f5 Be6+ Kb5 Bf7 Nf3 g1B c8B g2 Bg5 g3 Rh4 Rc1 Be6 b1R Nd2 b2 Ba2 Rc6 d5 Bd4 e6 g1R Qc1 g2 Rf4 Ra1 Qb1 Bc3 Qc1 b1B h6+ Kh7 Bd3 Nh5 Bf1 Be4 f6 Kg6 h7 Qb6+ Ka4 Qf2 Kb5 Qg3 Qb1 Qh2 Qc1 Be8 f7 Kg7 Qc2 Rd1 Qb1 Rac8 a8Q Ra6+ Qc6 Bb2 Qd7 Rcc6 Qc1 Rh1 Qa7 g1B Qb7 Bgd4 Qa7 Bdc3 Qe3 Rg1 Qb1 Ngf6 Qc1 Rg3 Qb1 Rg8 Qc1 Rh3 h8B+ Kh7 Qb1 Rg6 Bg7 Ng8 Bd4 Bc2 Bc5 Kg7 Qc1 Rf6 Rc4 Bh7 Rf4 Rg6 Bh6+ Kh8 Bg5 Bfg7 f8Q Bh6 Qf7 Bf8 Qf5 Kg7 Qfd3 Bf7 Qdb1
QR1bq1nn/6p1/NrpQp1bb/N7/1r2N1k1/2K1PBP1/5nQ1/1qN3bq b - - 0 1 illegal: No possible last move
r4QnQ/q1q1qN2/2QR1p1n/1pRp1Pk1/R5bb/1P1K1bp1/Q4Bn1/4r3 b - - 0 1 legal: proof: d4 a5 g4 h5 b3 hxg4 d5 e5 d6 a4 e3 e4 Bb5 a3 Bd3 exd3 Nd2 cxd6 Nc4 d5 Nb2 axb2 Qe2 d4 Qd2 Qe7 Qd1 Qd8 Kd2 Ke7 f4 Kf6 h4 b1B c4 d5 a4 b5 e4 g5 a5 g3 h5 g2 a6 g4 e5+ Kf5 e6 g3 h6 Nd7 e7 Ndf6 e8Q Qc7 a7 Ng4 h7 N4h6 c5 Be7 c6 Bh4 Nf3 g1Q Qc2 f6 Qf8 Kg6 Ng5 Bg4 Nf7 Re8 a8Q Re1 f5+ Kh5 Nd6 Kg5 Qca2 Bc2 Rh2 Bcd1 Re2 Qe7 Re6 Bdf3 Ba3 Qc7 Bc5 Qe7 Rd1 Qc7 Qac8 Qe7 c7 Qf2+ Kc1 d2+ Kc2 d3+ Kc3 Qg1 Ra1 d1Q Bf2 d2 Kd3 Qc1 Qca8 d1N c8R Qcc7 Qc6 Ne3 Nf7+ Kh5 Rd6 Ng2 Bb6 Qc5 Ba7 Qa3 Bf2 Qa4 Ra8 Qaa7 Rc1 Qab8 Ra4 Qba7 Ne5 Kg5 Rc2 Rb1 Rc5 Re1 Nf7+ Kh5 Nd8 Kg5 Qfe8 Qe5 Qb2 Ne7 Qa2 Rf8 h8Q Neg8 Qe7 Re8 Qf8 Qee7 Nb7 Rb8 Nd8 Ra8 Nf7+
2R1BNq1/6P1/ppp1n2K/q1r2R2/r2k2b1/r1bRR2p/qR2P3/3NN3 b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 b4 gxh4 a5 b5 axb6 Qf6 b7 Na6 b8N Qd8 c4 Qf6 c5 Qc6 b5 Qe4 b6 Nh6 c6 Nc5 b7 Qf5 Ba3 Ng8 Qa4 Na6 Bc5 Qg5 Bb6 cxb6 c7 Qd8 Qc6 dxc6 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 f5 g4 f3 d3 h3 g5 h2 g6 f2 g7 f4 Ra3 f3 Ra2 Nf6+ Kh6 Kd4 Ra5 Bb4 Rb5 Nc5 Kg5 h5 Nd7 h4 b8R Nh7+ Kh6 Bc3 Nf8 Bg4 Bh3 f1Q c8R f2 Rb2 Qe1 Rb7 f1Q Rf7 Qd5 Rf5 Qa2 Nf3+ Ke3 d4 Nd3 d5 Ng5+ Nh7 Ne6 d6 Rd8 Rg1 h1R d7 Qd2 Ne1 Kd4+ Rg5 Qg2 Nf8 Qgd5 Rg3 Rg1 Rf3 Rg3 Re3 Re8 d8R Rf3 Bg2 h3 Rf5 Rf4 Bf3 Qa5 Rb5 Qda2 Rb2 Re7 Nd2 Rd7 Ne4 Qdb3 Nf2 Rd5 Nd1 Re4 Re8 Rc5 Re7 Nef4 Ree8 Qg8 Ree5 Ne6 Rd2 Rc4 Rb5 Re5 Rb3 Rec5 Rbb2 Ra4 Bd5 Ng5 Bf7 Ne6 Re8 a6 Bh5 Rd8 Bf7 Rdd5 Rc8 Ra3 Bg6 Rc4 Bf7 Rca4 Be8 Rc5 Rdxd3+
3BR2N/1Rb1RqbP/kr1q1pb1/5Pb1/1R5b/2nN2nK/rn6/b3N1R1 b - - 0 1 legal: proof: b4 b5 f4 c5 e4 d5 g4 dxe4 f5 g5 Qf3 cxb4 a4 Qd7 axb5 Qd8 Qf4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 Kd7 Kg2 Kc7 c4 Kb7 d4 a5 h4 e5 g6 f3+ Kg3 f2 h5 f1N+ Kg2 a4 b6 g3 c5 a3 c6+ Ka6 b7 b3 d5 a2 d6 b2 g7 e3 h6 e2 c7 e1B h7 e4 d7 f6 Nd2 b1Q Nb3 e3 Na5 e2 Bb2 Bd2 Be5 e1B Bd6 Nc6 b8R Nge7 g8N Bg7 Nb7 Nd5 Rh6 Bg5 Be7 Na5 Ne2 Nc3 Kh3 g2 Rh4 g1B Nc1 Bh2 Nd3 Nc4 Nh6 Ng3 Nf7 Nb2 Rb4 Qg8 d8R Bd7 c8R Be8 Rcc4 Qd1 Re4 Bf2 Rb1 a1B Ne1 Qd6 Rd7 Qf8 Bd8 Rg8 Nh8 Bg6 Re8 Qf7 Rde7 Ra7 Na5 Rb7 Nb3 Rb6 Nc1 Rf8 Reb7 Rg8 Ree7 Re8 Red7 Re5 Rdc7 Ra5 Re7 Ra2 Rc8 Nge4 Ncd3 Bfh4 Ng2 Bhf4 Rg1 Ng3 Nge1 Qd7 Rcc4 Bc7 Rce4 Qdd5 Re8 Qd6 R4e7
3b4/2B1rqR1/RRr5/5q1P/n2P4/bb1Rqp1Q/R1R1rNr1/K3k1nb b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Nf3 f5 Ng1 f4 g3 h6 Bg2 h5 Bf3 Qg5 Nc3 Qd8 Ne4 Qd6 Nf2 gxf3 g4 Qd7 g5 Qd8 Ng4 hxg4 h4 Ke7 e4 Ke6 b4 Ke5 g6 Kd4 h5 Kd3 g7 c5 e5 a5 b6 f5 e6 f2+ Kf1 g3 b5 c3 b7 c2 b6 c4 e7 a4 e8R a3 Rb1 a2 Ne2 a1B Rg1 c3 Rb5 Na6 b8R Be6 b7 Bb3 Re6 Qe8 Rh1 Nf6 g8R Ra7 Rc8 Qf7 b8R Ng4 Bb2 c1R Ba3 c2 Bd6 Nh2+ Kg2 f1B+ Kg1 f3 Bc7 g2 Kf2 g1R Ke1 f4 Rgg6 Ba3 Re7 Rg2 Rg1 Bf6 Rb4 Re8 Nc3 Nc5 Rg3 Na4 Re2 Bd8 Ne4 Re7 Rg6 Ra5 Rgb6 Rae5 Ra8 R5e6 Rf2 Rc6 Raa6 Rb1 Rc4 c1Q Rc5 Rb2 Rg5 Qc5 Rg7 Qe3+ Re2 Ra2 Qc1 Rac2 Kd1 f2 Rh1 Nf3 Rh3 Ng1 Qb1 Kc4 d4 Ra2+ Rc2+ Kd3 Rca8 Qf5 Nd2 Rb2 Kc1 Ke2 Qa1 Ra2+ Kb1 Ke1 Qc3 Bb5 Qd3 f1Q Ne4 B5c4 Rhg3 Bd5 Nf2 Qf7 Qf5 Qfd3 Qh3 Qdf5 Ng4 Re2 Nf2 Rb2+ Ka1 Bh1 Rd2 Rbc2 Rd3 f3 R3g5 Qfe4 Rc5 Rcd2 Rc2 Qef5 Ng4 Rg2 Nf2 Re2 Rb5 Nb6 R6a7 Bc1 Raa2 Na4 Ra6 Ba3 Rbb6
3r4/2Pp1BRn/4b2R/1P1nBq2/R1rrnB2/q2b1K1Q/1Rbb1n2/2R1k3 b - - 0 1 illegal: No possible last move, all moves rejected
8/3Rnr2/1rbN1pnb/2KR2r1/1NP1N2b/r1kN2N1/P2pn2r/R1B1q3 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 g5 d4 c5 b4 cxd4 Bg2 axb4 Qd2 h6 Qf4 gxf4 g5 h5 Bh3 Ne7 Bf5 Ng8 Bg4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 b5+ Kd3 Kd5 h4 g3 h5 b3 h6 b4 e6 f3 c3 g2 e7 f2 e8N f1R h7 b2 g6 b3 g7 Ne7 g8N Qa5 e3 Nbc6 Nh6 Bb7 Ne2 g1B Nd2 b1R Nf3 b2 Nd6 Ne5+ Kc2 d3+ Kb3 d2 Rh2 d1N Ne1 Bc6 Rg2 Bf2 Ng3 N5g6 Ng4 Bh6 c4+ Kc5 e4 Kd4 e5 Nc3 e6 Ne2 Nd3 Qe1 Rg1 f6 Rh1 Rg1 Rh5 Raf8 Ka3 Rf7 Rd5+ Kc3 Nb4 Rg2 Nd3 Rg8 h8R Rh2 Rh7 Rgg7 Be3 Rd1 Bc1 Rg8 Rg7 b1R Rh7 Rb6 Rg7 Bfe3 Ngf2 Beg5 Rh7 Bh4 Rg7 Nf5 e7 Rd2 e8N Nfe7 Nc7 Rd1 Nb2 Rd3 Na6 Re3 Nb4 Rf3 Ne8 d6 Nb2d3 Re3 Ra5 d5 Nd6 d4 Rd5 Rf3 Nf4 d3 Rh7 d2 Nf4d3 Rf5 Rg7 Rg5 Rh7 Bb7 Ka4 Rb8 Ka5 Ra6+ Kb5 Bc6+ Kc5 Ra3 Rg7 Rff8 Rf7 Rb6 Rh7 Ng8 Re7 Rf7 Rd7 N8e7 Nfe4#
5kq1/1nBP2Rq/2R2N2/pB2b1Pb/3pR1n1/4RRBr/rq6/1rr2bK1 b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 c5 h4 g5 d4 gxh4 d5 d6 Qd4 Bb7 Nc3 Ba6 Ne4 cxd4 c5 Bb7 c6 Bc8 Nc5 dxc5 Kf2 h5 e4 f5 b4 c4 g4 h3 c7 f3 g5 f4 b6 h4 e5 c3 b5 c2 e6 h2 d6 h3 b7 Nf6 e7 Bg4 c8R Nbd7 b8B Nc5 b6 Bg7 b7 Bh5 Bd3 Ng4+ Kf1 f2 Nf3 Be5 Bc7 a6 b8R Nb7 Bd2 c1Q+ Be1 Qb2 d7+ Kf7 Be2 Qg8 e8R Rh6 Rg1 h1R Bb5 h2 Ra3 Rb6 Kg2 f1R+ Nd2 Rh6 Bh4 Rb1 Re3 Rc1 Be1 f3+ Kf1 f2 Ne4 Rb1 Rf8+ Kg7 Rff3 Rc6 Nf6 Rcc1 Re8 Kf7 Re6 Kg7 Rbe8 Kf7 R8e7+ Kf8 Kg2 Ra7 Rg7 Ra8 Kh3 f1B+ Rg2 a5 Rd6 Re8 Bg3 Re6 Ra6 Rec6 Rb6 R6c3 Rc6 Ra3 Kh4 Ra2 Rge2 Rg1 Re4 Rg2 R2e3 Rgc2 Bf4 h1Q+ Kg3 Rc3 Ne8 Be2 Nf6 Qh4+ Kg2 Bf1+ Kg1 Rb3 Re1 Re3 Bg3 Qh3 Rf5 Rf3 R1e3 Qh4 Bf2 Rh3 Rff3 Be8 Rec3 Qhh7 Rce3 Bh5 Bg3
4R2r/6R1/pqq3Bn/1r4p1/2pRnn1R/3RPRk1/QbbPb3/qN2K3 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 g3 Nf3 exf6 Ng1 f5 Qb3 f4 Qa4 Qe7 Qd1 Qd8 b3 h6 Ba3 Qd3 Nc3 Bf5 Bc5 Qd6 Bf2 Qd3 Ne4 Kd8 Ng5 Qd7 Qc2 gxf2+ Kd1 Qe7 g4 Qf6 Kc1 Ke8 Qd1 Bc8 Ne6 Ne7 g5 Ng8 g6 Qd8 Ng5 hxg5 h4 Kd7 b4 Kd6 h5 Ke5 h6 c5 g7 f5 h7 c3 b6 c4 b5 f3 b7 Kf4 b6 c2 e3+ Kg3 Qe2 f4 Rh4 a6 Rh1 Bf5 Rh4 Nh6 g8R Nd7 b8R Nf6 b7 Ne4 Qe1 Qb6 Bd3 Bg7 Rbf8 Rb8 Ra3 Qc6 Qd1 f1Q Rc3 Be5 Rg7 f2 Rb3 f3 Ne2+ Kg2 Nc3 Kg3 Qe1 Qh1 Rf6 Qb6 Nb1 Bg6 Qd1 f1Q Rc3 f2 Rf3+ Kg2 Rb3 Qe1 Rc3 f1B Ra3 Be2 Rb3 Rbf8 b8R Rf5 Re8 Bf6 Rd8 Rb5 Rd4 Qeg1 Kb2 c1N Kc2 Nd6 Bf5 Nd3 Qe1 Nf4 Rbd3 Ne4 Qc1 Qc6 Qb2 Qb6 Qa2 Qf1 Bg4 Bf5 Bh5 Qe1 Bg6 Be5 Na3 Qa1 Nb1 Bf6 Rd5 Bb2 R5d4 Rc8 h8R Ra8 Rf1 Kg3 Re8 Rd8 Re6 Rh8 Re8 Nf6 Rf2 Qhc6 Rf1 Ne4 Rf2 Bf1 Kd1 Be2+ Ke1 Nc5 Ra3 Bc2 Rad3 Ne4 Rf3+
br6/1PpN3r/2kR1n2/K2n1N1N/5r1N/p1pqqN1P/2bQ4/1N3nbB b - - 0 1 illegal: No possible last move, all moves rejected
1KnRn3/r1N3q1/3n4/P1pp3p/kn3BR1/P2RbN2/3rn1bq/N3N1N1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 e5 d3 exf4 d4 c6 c4 Be7 c5 Ra7 d5 Qc7 e3 Ra8 d6 Qd8 Qd5 Bf8 Bb5 cxd5 c6 Qg5 c7 Qd8 Bc6 dxc6 Kd2 Kd7 Kd3 b5 Kd4 f5 Kc5 f3 Kb6 b4 g4 f2 a3 f1N g5 f4 e4 c5 g6 h3 e5 b3 g7 f3 Rh2 b2 Rc2 f2 Be3 h2 Rc1 h1Q Bd2 Ne7 g8R Na6 Nh3 Nb4 Rc4 Bh6 Ng1 Nh2 Bc1 f1N Nd2 b1N Nb3 Qf8 e6+ Ke8 Ra2 Ne3 Rd2 N3f5 Na1 Ng4 Rcd4 Ba6 c8N Nc3 Kc7 Ra7+ Kb8 Bf1 Nb6 Nc8 e7 Nf6 Nc4 Kd7 e8N Kc6 d7 Kb5 d8N Nfd6 Nc6 Ka4 Rdg4 Qg7 Nc7 Bf4 Rd8 Nfe8 Rd3 h5 Rh3 Rf8 Nd2 Qh2 Rd3 Bg2 Nd4 Bh6 Ndc2 Rf2 Ndf3 Bg5 Bf4 Rd2 Bg3 Ne2 Nce1 Be3 Bf4
R1k2n1n/q1B5/B1r1nn1p/1bPBK1p1/5p2/nR2Q1b1/RB1P1r1n/B7 b - - 0 1 illegal: No possible last move
4b1Q1/p7/b3qp2/B1r1r1Nk/n1b3B1/1BqP2KB/P2R1pb1/b2b1BB1 b - - 0 1 illegal: No proof kernel
1K1N3N/BP2p2P/kb2q1B1/4n1rN/BQ4Nr/2p5/r1npp3/1b2N1qb b - - 0 1 legal: proof: d4 h5 h4 f5 e4 fxe4 b4 a5 c4 c5 g4 b6 a4 Nc6 b5 Nb8 Ra2 Nh6 Rb2 Ng8 Rb4 axb4 gxh5 Rh7 Rh3 Rh6 Rc3 cxd4 c5 Rh7 c6 Rh8 Rc5 bxc5 Kd2 d5 f4 g5 h6 e3+ Kd3 g4 a5 g3 a6 g2 a7 b3 f5 b2 h7 Qb6 c7 Kd7 h5 Bg7 f6 Bh6 f7 Na6 f8N+ Kd6 Qe1 Qb7 b6 Kc6 Qb4 Bg5 h6 Nf6 Ne6 Ng4 Na3 b1B+ Nc2 e2 Nf4 Bh4 Ngh3 g1R Bg2 Bf2 Be4 Rg2 Nh5 c4+ Kd2 d3 Kc3 d2 Ne1 d1Q Bg6 Bd7 c8N Ne5 Nd6 Rg5 Nf7 Qc8 Be3 Kb7 Bd4 Be3 Nf2 Bc6 Ng4 Qe6 Bc5 Bf2 Be3 Qc1+ Kd4 c3 Nd8+ Kc8 Qb2 Nb4 Kc5 Nc2 Qb4 Bg1 Bf2 d4 Be3 d3 Bf2 Rg8 h8N d2 h7 Bh1 Kb5 Rf8 Ka6 Rf3 Bd4 Rh3 Be3 Rh4 Bd4 Rb8 a8B Be3 Bc6 Ra8+ Kb5 Ra2 b7+ Kb8 Kb6 Bf2 Nd3 Qg1 Ne1 Rb2 Ka6 Kc7 Ka7 Ra2+ Ba4 Be3 Ka8 Bf2 Ba7 Bb6 Qa3 Bd4 Bb8+ Kb6 Ba7+ Ka6 Kb8 Bb6 Qb4
1k2K1N1/8/Nn2bB1B/qB3prP/2pP1n2/6Rp/NbrnBp2/n4Bq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 dxc4 h5 exf4 b4 h6 g4 Be7 Rh4 Bf8 Qb3 Qd7 Qg3 Qd8 Rh1 Na6 Qh4 Nb8 Ra3 Qd6 Rg3 gxh4 g5 Qd7 g6 Qd8 Rg5 hxg5 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 c5 e4 Kc7 d4 a4 g7 a3 b6+ Kb7 b5 h3 Nf3 g4 Nh2 a2 Nc3 a1N Rg1 g3 Ng4 f3 Nh6 f2 Na2 Ne7 Kf6 c3 Kf7 g2 g8B c2 e5 Nd5 e6 Nd7 e7 Nf4 e8B Kb8 b7 Nb6 Bd7 Qc7 Ke8 c4 Bd5 Bb4+ Ng8 Bc3 Bf3 Bb2 B3e2 Ra5 Bd2 c1N Bc6 Ncb3 Bd7 Ng6 Bh6 Nf4 Bc6 Be6 Bd7 Ka7 b8N Nd2 Na6 Rh7 Bc6 Rg7 Bd7 Rg5 Bc6 Na4 Bd7 Ka8 b6 Re5 b7+ Ka7 Nc1 Qa5 Na2 Nb6 b8B+ Ka8 Ba4 Re3 Bd7 Rc3 Be5 Rc2 Bb5 Kb7 Bf6 Kc8 Rh1 g1Q Rh2 Kb7 Rg2 Kc8 Rg3 Kb7 Nc5+ Kb8 Na6+
1R5b/nN1n1K1p/n1pb1Br1/8/p2PB1kN/2Pr3N/B1B1pp2/3q2nB b - - 0 1 legal: proof: e4 d5 f4 b5 a4 bxa4 e5 e6 f5 exf5 Qf3 f4 Qe2 Qf6 Qe4 Qd8 b4 dxe4 g4 g5 Ra3 Bc5 Rd3 Bf8 Rd6 f3 Rf6 Ne7 Rf4 gxf4 g5 Ng8 h3 Bg4 hxg4 Bh6 Kd1 Bg7 Ke1 Bf8 Kf2 Ke7 e6 f5 b5 a5 b6 a3 b7 c6 g6 Kf6 g7 Kg5 e7 a4 e8B a2 Bg2 a1B Bb2 Bd6 Bg6 Nd7 b8N Ne7 g8B Nc8 Ba2 Na7 Na6 Rg8 Nh3+ Kh4 g5 Kg4 Bf6 e3+ Kf1 e2+ Kf2 Rb8 Nc5 Rb3 Nb7 Rd3 Rc1 Bb2 Bh1 Bbe5 c3 Rg7 Kg1 f2+ Kg2 f1N Bb3 Nh2 Bc2 f3+ Kf2 f4 Be4 Nf1 g6 Ne3 Rd1 Rg8 g7 Nd5 Rc1 Nb4 Re1 Re8 g8B Na6 Ba2 Rg8 Rc1 Rg6 Rf1 Rd4 d3 Rd5 Nd2 Rd4 Rb1 Rd5 Kg1 f2+ Kg2 f1N Nf3 Nh2 Nh4 f3+ Kf2 Rd4 Ke3 f2 Rb5 Nf3 Rb6 Rb4 Rb5 Rb1 Rb4 Ng1 d4 Qb8 Rb5 Rd1 Nc5 Nf8 Bd8 Bh8 Bf6 Qb6 Rb2 Qa5 Rb8 Qb4 Nb7 Qb5 Bed5 Qb1 Ke4 Bc5 Ke5 Nd7+ Ke6 Rd3 Bdg2 Bd6 Kf7 Qd1 Be4
3b4/1p2rP1b/p1Qnq1nk/2bNNQR1/P5Q1/6rr/6RQ/1K3Qb1 b - - 0 1 legal: proof: b4 c5 c4 g5 e4 f5 exf5 g4 h4 gxh3 g3 e5 Bg2 hxg2 bxc5 d5 d4 dxc4 Bf4 c3 Bxe5 Nc6 d5 Nb8 Bc7 Qf6 Bd8 Qxd8 a4 Kf7 f4 Kg7 c6 h5 f6+ Kh6 g4 a6 c7 c2 Kd2 c1B+ Kc2 h4 f7 h3 g5+ Kg7 f5 h2 f6+ Kh7 d6 Be3 g6+ Kh6 g7 Nc6 d7 Be7 f8Q Rh7 Qf1 Bg5 Nc3 Qe8 d8Q Na7 Qd6 Nb5 Nf3 g1B Nd5 Bf5+ Kb2 B5e3 c8Q Bd8 Ra2 Bc5 Qcc6 Ne7 Ne5 Ng6 g8Q+ Rg7 Ka1 Qe6 Rg2 Rc8 f7 Rc7 Qfe8 Re7 Qed7 Bd3 Qd6c7 Nd6 Rg5 Bgf2 Rhg1 h1R R1g2 Bg1 Qb8 Rh3 Ka2 Qf6 Qdf5 Qe6 Ka1 Bdb6 Qgc8 Bd8 Qg4 Nf4 Ka2 Bh7 Q8d7 Ng6 Kb1 Qf6 Qdf5 Qe6 Qbc7 Rh2 Qgd1 Nc4 Nf3 Nge5 R5g4 Rh3 Qd4 Rg5 Qde4 Ng6 Qh2 Nd6 Ne5 Nc4 R4g3 Nd6 Qb4 Rgh5 Rg4 Rg3 Rg5 Rhh3 Qbg4
BNnQbK1n/1NN5/4p3/1qPr4/1B1k3N/2q1q1p1/Pb2bb2/2Q2N1q b - - 0 1 legal: proof: f4 h5 g4 b5 h4 c5 d4 a5 e4 cxd4 e5 Qc7 e6 Kd8 exf7 a4 b4 axb3 Na3 b2 g5 bxa1Q f5 Ra6 Rh3 Rf6 gxf6 Qb6 Rd3 Kc7 Rg3 Kc6 Nb1 Qd8 Rg4 hxg4 Kd2 Kd5 Kd3 g5 h5 b4 h6 b3 c3 b2 h7 e6 Ne2 Qb6 Ng3 Nc6 Be2 Ba3 f8Q Nh6 f7 Na7 Qe7 Rd8 f8N Nf7 h8N d6 f6 Bd7 Qd2 Nc8 Nhg6 Be8 Nh4 Nh8 f7 Ke5 Kc4 d3 Qc2 d2 Bf3 d1Q Ba8 Qh1 Nf1 Qa7 Qd7 Qe3 Bd2 d5+ Kb5 Qf4 Kc6 d4+ Kc7 d3 c4 Qd4 Bc3 d2 Qc1 d1B Be1 Qf2 Nc3 b1Q Nd5 Qb5 Bb4 Be2 Qe7 Qff3 Nd7+ Kd4 f8N Qac3 Nc5 Bb2 Nb7 Rd6 Nd7 Qfd3 Kd8 Qe3 Nc7 Rd5 c5 g3 Qf7 g4 Qe7 g2 Qd6 g1B Nb8 g3 Qd7 Nb6 Ke7 Bf2 Qd8 Nc8+ Kf8
2R1r1br/qb5n/Qb1bR2k/QQ2b3/2Q3rP/6Q1/Pr3nN1/n3Kb1N b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Na3 f5 Nb1 f4 Bb2 g3 Bd4 Bf5 Bf2 Kd7 Qb3 gxf2+ Kd1 Bh3 Kc1 Ke8 Qd1 Bc8 g4 h5 g5 Qe7 Bh3 Qd8 Bg4 hxg4 e4 f1N d4 c5 h4 f5 d6 Kf7 d7 Kg7 e5 b5 d5 b3 g6 g3 e6 c4 e7 g2 e8Q f3 d6 f4 Qde2 b2+ Kd1 c3 Q8e7+ Kh6 g7 b4 Qb5 b3 Nh3 g1B Qbe2 f2 Qe8 f3 Rh2 Qa5 d8Q Ng3 d7 f1B Rh1 f2 Nf4 Na6 Ng2 Nf6 g8Q Nc5 Nd2 b1B Ne4 b2 Qb5 Bb7 Rh3 Qa7 Ne1 c2+ Kd2 c1B+ Kd1 Nh7 Qd3 Bd6 Qa6 Bf4 Qda5 Nh1 d8Q Be5 Qdc7 Nb3 Qeb5 Re8 Qg3 Bbd3 Rc1 b1R Qcc6 Bc4 Ng2 Bg8 Qcc4 Na1 Rh2 Rb2 Rc2 Bd3 Kd2 f1R Nf2 Re1 Rh3 Re3 Rh2 Rf3 Ke1 Bf1 Rh3 Rf4 Re2 Bg7 Re7 Bf6 Qga3 Bg7 Rc3 Rg4 Rc2 Be5 Qh3 Ng3 Nh1 Ne4 Qg3 Bgd4 Qf7 Be3 Rc8 Nf2 Qfc4 Bb6 Re6+
Qr2b2r/n1bk4/Qqp1r3/2BPBBP1/Bq2Bb1R/2bK1n2/3bn3/5R2 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 d5 bxa5 dxc4 e4 f5 g4 fxe4 f5 Bg7 Nc3 Bf8 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Na6 Nf2 Nb8 Ng4 hxg4 Ke2 b5 d4 e5 h4 c6 a4 e3 f6 f3+ Ke1 e4 d5 e2 Kd2 e1B+ Kc2 c3 h5 g3 f7+ Kd7 h6 f2 h7 b4 a6 g2 a5 g1N a7 b3+ Kb1 c2+ Kb2 e3 a6 e2 Rh6 Ne7 Qd3 Qb6 Bg2 f1R Be4 Bd2 Rh4 e1B Qb5 Bf4 Be3 Ne2 Bc5 c1B+ Kb1 b2 Kc2 Bc3 Kd3 Bfg7 f8Q B1d2 Qg8 Rh1 Rf1 Bge5 Qc4 Bc7 Qf8 Rg8 h8B Rg6 Be5 Re6 Qa2 Nf5 Qg8 Nd6 Qa1 Ke7 Qa4 Nd7 Qa5 Rb8 a8B Qb4 a7 Qb6 Qa4 Rh2 Bb7 b1Q+ Qc2 Rh1 a8B Q1b4 Qa2 Rh2 Ba6 Rh1 Be3 Nb5 B8b7 Na7 Bb5 Rh2 Qa6 Rh3 Bg7 Rh1 Ba4 Ne5+ Kc2 Kd7 Bc5 Nf3 Be5 Rh2 Kd3 Rh3 Rg4 Rhh6 Rh4 Rh8 Rg1 Reh6 Qg6 Kd8 Qf5 Ra8 Rd1 Bd7 Bc8 Be8 Rf1 Rg6 Qb7 Rb8 Qa8 Bd6 Qf7 Rgh6 Bg4 Re6 Qfb7 Bc7 Qa6 Kd7 Bgf5
2KQR1Rk/qr4n1/b2N1p2/3r3P/Rq2QrN1/1b1PR1b1/R3np2/3n3q b - - 0 1 illegal: No possible last move, all moves rejected
r1Qbn1b1/B2Pk3/1pqn4/QP2nb2/2B4Q/bQ3Q2/K1pR1Rrb/5q2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 cxd5 e5 Ba3 exf4 Bb2 Rh3 Bc1 Rh8 b5 Qg5 Na3 Qf6 Nc2 Qd8 Nb4 axb4 a4 Qg5 Nf3 Qf6 Ne5 Qd6 Nc4 Qd8 Na3 bxa3 d4 c5 Kd2 f5 Kc2 g5 Kb3 c4+ Ka2 g3 h4 f3 e4 f4 a5 f2 d6 c3 e5 b6 a6 g4 d7+ Ke7 a7 g2 h5 g1N d5 c2 h6 f3 h7 g3 e6 g2 Rh5 Nf6 Rh2 Na6 Qd2 Nc5 Bb2 Qe8 Qh6 Nce4 Rd1 Nd6 Bc4 f1B Qh3 f2 Qf3 Rg8 h8Q Bd3 Ba1 f1Q Be5 Bf5 Rd2 Rg7 Qb3 Nf3 Qh5 g1B Rhf2 Rg2 Bh2 Ne5 Qhf3 Qg6 Bg3 Bh2 Bf4 Rb8 a8Q Nfe8 Qa5 Ra8 Bg3 Qh6 Bf4 Bh7 Bg3 Bg8 Bf4 Kf6 e7 Kf7 d8Q Bf5 Qc8 Qe6 Qc5 Qc8 Qd4 Qc6 Qde4 Ng7 e8Q+ Kf6 Qeh5 Ke7 Qhg4 Nge8 Qe1 Bg6 Qc8 Bf5 Ka1 a2 Kb2 a1B+ Ka2 Bc3 Bg3 Ra6 Qee4 Ra8 Qh4+ Kf7 Bf4 Bb2 Bg3 Be7 Bf4 Bd8 Bg3 Ne4 d6+ Kf8 d7 Ba3 Qhh5 Ke7 Qh3 Nd3 Bb8 Ne5 Ba7 N4d6 Qh4+
3N2b1/5Q2/NpN1rPbQ/p2nP2n/KN2qN2/nR2r1b1/3Rnk2/1n1n4 b - - 0 1 legal: proof: b4 f5 e4 e5 g4 h5 a4 Nc6 d4 Nb8 b5 b6 Bg2 exd4 gxh5 Nf6 e5 Ng8 Be4 fxe4 a5 Bd6 Ba3 Bf8 Bc5 bxa5 b6 a4 b7 Nh6 Bb6 cxb6 Qd2 Ng8 Qc1 Qg5 Qd1 Qd8 Kd2 Kf7 f4 Ke6 c4 Kf5 Kc2 d5 h4 g5 h6 a5 h7 g4 h5 e3 c5 Ke4 h6 d3+ Kb2 a3+ Kb3 d4 c6 d2 f5 d3 c7 a2 Qf1 d1B+ Kc4 e2 Kb5 Ke3 Nf3 e1N Rh3 d2 Rh1 g3 Rh4 g2 Rh5 g1N Nd4 Qh4 Nf3 Bc2 Na3 d1N Rg5 Nd7 b8N Be7 Rg4 Ndf6 Rb1 a1N Nd4 Nef3 Na6 Nd5 Ne6 Ngf6 Rd4 Nd2 Rb3+ Bd3+ Ka4 Nb1 Qf4+ Ke2 Nc2 Re8 h8Q Nh5 Ng7 Be6 c8N Bg8 Ncb4 Nc2 h7 Nca3 Na7 Rac8 Ne6 Rc3 Nac6 Qh1 Ned8 Bh4 Qg7 Re6 h8N Bg3 Qfh6 Kf2 f6 Ne2 Ng6 Qf3 Nf4 Bg6 Qe7 Qe4 Qf7 Re3 Rd2
N1r3kb/4r2r/n5KQ/1b1npPBQ/b3p2q/QQ1N3B/4b1P1/1q2r2Q b - - 0 1 legal: proof: b4 a5 h4 axb4 e4 d5 a4 g5 hxg5 c5 c4 f5 Rh6 fxe4 Rb6 b3 Rb4 cxb4 c5 Qd6 Ra2 Qc7 Rc2 Qd8 Rc4 dxc4 Ke2 Kf7 Ke3 b5 Kf4 h5 d4 e6 c6 b2 c7 b3 d5 c3 a5 c2 a6 h4 d6 h3 a7 h2 d7 h1R Nd2 b1Q Bc4 b4 Ngf3 b2 Ne1 b3 Nd3 R1h7 Qh1 Ba6 c8Q Bg7 Qc5 Nf6 g6+ Kg8 Kg5 Bb5 f4 Na6 Qe3 Rb8 a8Q Rb7 Qeh3 Ba4 Qh6 Nd5+ Kh5 Bf6 g7 e5 Kg6 Ra7 Bb5 Rc7 Nc4 Ra7 Bd2 c1R Nb6 Re1 Bb4 Rc7 Bf8 Qe7 d8Q Rd7 Qdb8 Qd8 Bd6 Re7 Bd7 Rf7 Qab7 Qa1 Kh5 b1B Bh3 b2 Nc5 Bd3 f5 b1B Bg4 Be2 Be7 Bbd3 Qd6 Qb1 Na8 Bc4 Qb3 Bcb5 Bf8 Rd7 Be7 Kf7 Nd3 Rf8 g8Q+ Ke8 Qda3 Bh8 Qg5 Kf7 Qgh4 Kg8 Kg6 Ra7 Q4h5 Rd7 Bc5 Qh4 Be3 Rde7 Bh3 Rc8 Bg5
bqNq1B2/1B2q1kB/1n3r2/B1Q1rQPq/nK6/1pN5/1P1rp3/4qB1n b - - 0 1 legal: proof: h4 g5 d4 gxh4 a3 b5 d5 b4 d6 b3 Qd4 Bg7 Qd1 Bc3+ Nd2 Bb4 axb4 cxd6 Nb1 d5 Bg5 d4 Bf4 Qc7 Bc1 Qd8 g4 e5 Ra5 e4 Rh3 f6 Rd3 exd3 e4 Ne7 Rf5 Ng8 Rf4 f5 e5 Qf6 Re4 fxe4 Qd2 Qb6 Qd1 Qd8 Kd2 Kf7 c4 d5 f4 a5 b5 h5 b6 h3 f5 h2 g5 h1Q c5 h4 e6+ Kg7 c6 a4 b7 a3 c7 a2 e7 a1Q e8B e3+ Ke1 d2+ Ke2 h3 Kd3 h2 Na3 e2 Nf3 Nd7 b8Q Ra5 Qa7 Nb6 Qa8 Nf6 Bh5 Rh6 Bf7 Nfd7 Qc2 d1Q+ Nd2 Qe1 Be8 Qe7 Nab1 Na4 Qb7 Ndb6 Ne4 Rf6 Qa7 Bb7 c8B Ba8 Nbc3 Qf3+ Be3 h1N Nd6 Qh5 Bg6 Qg3 Kd2 d3 Bb7 d4 Nc8 Qb8 Bh7 Re5 Bf4 Qaa3 Qa5 Qad6 Qc5 Qdd8 Qb1 Re4 Bc7 Re5 Qc2 Nd5 Ba5 Ndb6 Kc1 d2+ Kb1 d3 Ne4 Rfe6 f6+ Kh8 f7 d1Q+ Qc1 Qd2 Q1c2 Qb4 Kc1 Kg7 Qb1 Rf6 Qbc2 Qbd4 Kd2 Qf2 Qb1 Qg3 Qbc2 Ree6 Qf5 Re5 Qc5 Qe1+ Ke3 Qh8 Kd4 d2 Nc3 d1R+ Qd3 Nd7 Kc4 Qhd8 Kb4 Ndb6 Qf5 Rd2 f8B+
Q3Q2Q/bnB5/3rPP2/kr1Q1B2/np1p2K1/3p4/nR1p3R/1bq2Qbn b - - 0 1 legal: proof: e4 e5 b4 c5 d4 cxd4 g4 f5 b5 h5 gxh5 a6 Nh3 axb5 Ng1 b4 Ne2 d3 Nd2 Qb6 Nd4 exd4 e5 Qd8 Ne4 fxe4 h4 d5 a4 Kd7 f4 Kc6 Kf2 Kb6 Kg3 g5 c4 g4 h6 d2 h7 e3 h5 e2 f5 e1N f6 d3 c5+ Ka5 c6 b5 c7 Na6 h6 Nc5 Qc2 Ra6 Rh2 Nb7 Rh3 Bf5 c8Q Rd6 e6 Ne7 Q8c4 Nc6 Q4b3 Qc8 Kf4 g3 Qd1 g2 Bb2 g1B Ra2 Rg8 h8Q Rg5 h7 Be7 Qa1 Bd8 Rg3 Bdb6 Be5 Ba7 Qe8 Ka6 Rb2 Nca5 h8Q Nc5 Rg4 Bb8 Rh4 Rb6 Rh5 Nab7 a5 Na4 Qba2 b3 Qa3 b4 Q1a2 d4 Qc6 Nf3 Bh3 Nh2 Qh6 Ng4 Rb1 b2 Rh4 Be4 Qe8 Nf2 Qhh8 Bd5 Qc4+ Rb5 Qa1 Nh1 Qc5 Rg7 Bf5 Ba2 Qd5 Rd7 Rh2 Qc5 Bc7 Rd6 Kg4 Qc3 Rc1 b1N Rc2 Qc5 Rb2 Nbc3 Qe1 Bb1 Qf1 Rd8 Be5 Na2 Bg3 Qc1 Bd6 Ka7 a6 Kb6 a7 Ka5 a8Q+ Ba7 Bb8 Rd6 Bc7+
2q3nk/prr2P1p/B5b1/2BbB1Q1/pB5P/1B2Kbp1/1n1R2q1/R2b3Q b - - 0 1 legal: proof: d4 c5 a4 cxd4 a5 d5 a6 g6 e3 d3 Qh5 d4 Qg5 d2+ Ke2 d3+ Kf3 Bg7 Qh5 Bd4 Ke4 bxa6 Qd1 a5 Kf3 a4 exd4 f5 g4 Bb7+ Ke3 Ba6 f4 Qd7 Kf2 Qd8 Nf3 Bc8 Ne5 Nf6 g5 Ng8 Ng4 Kf8 Na3 Ke8 Bh3 Ba6 Nc4 Bc8 Nce3 fxg4 f5 Na6 f6 Nb8 Nf5 gxf5 Bg2 Na6 Bf1 Nb8 h4 Kf8 b4 e5 c4 e4 f7 Kg7 g6 f4 c5 f3 b5 g3+ Ke3 f2 d5 Nd7 d6 Bb7 c6 Nb6 d7 Rb8 c7 Bd5 c8B Rb7 Qf3 d1B Ba3 d2 Bc4 f1B Rh2 Bd3 Qh1 Bf3 Bb4 d1B Bb3 B3c2 Rd2 Nc4+ Kf4 e3 b6 Rc7 b7 e2 b8B e1Q Ba6 Qc8 d8B Qg1 Bde7 Qg2 Bec5 Nb2 Ke3 Nf6 Be2 Rf8 Bec4 Ng8 Ba6 Rb7 Bf4 Rd8 Bb8 Rdd7 Bbd6 Rdc7 Be5+ Kh6 g7 Bf5 Be2 Bg6 Ba6 Bd3 Qh2 Nf6 g8Q Bd3e4 Qh8 Bg6 Qd8 Kg7 Qe7 Kh8 Qh1 Bc6 Bf4 Ng8 Qg5 Bcd5 Be5+
KN1N3r/8/1NNp1b1n/p1p1r3/PBkPp2Q/6Nq/n1b1qnr1/3B2nQ b - - 0 1 legal: proof: e4 f5 h4 g5 f4 b5 c4 bxc4 g4 Na6 a4 Nb8 b4 fxe4 f5 Bg7 Rh2 Bf8 Rf2 h6 Rf4 gxf4 g5 h5 Ra3 Kf7 Rg3 Ke8 Rg4 hxg4 Kf2 Kf7 d4 a5 f6 Ke6 g6 Kd5 g7 c5 h5 e5 b5 f3 Ke3 c3 h6 c2 f7 g3 h7 f2 b6 d6 b7 g2 Nd2 Be7 f8Q Na6 b8N Bf5 Qf6 Qd7 Be2 f1Q Ba3 c1N Qh4 Nb4 Nc4 Nbd3 Bb4 Nh6 g8N Na2 Bf3 Qe1+ Ne2 g1N Qa1 Qd1 Ng3 Nf2 Qb1 Qf1 Bd1 Bf6 Qa1 Qh3 Qc1 Qe8 Ne7+ Ke6 Nec6 Kd5 Qb1 Rg8 h8N Qe6 Nf7 Rg4 Nd7 Rh8 Qa1 Bh7 Ndb8 Rg6 Kd2 e3+ Kc2 e2 Kb3 e1R Nfd8 Qeg4 Qc1 Nf7 Qch6 Qe2 Q6h5 Rg5 Qf3+ Be4 Qh1 Nh6 Qf4 Qc8 Nf1 Qh5 Qfh4 Rg2 Ng3 Qcf5 Nb7 Qh3 Nb6+ Ke6 Kc4 Bc2 Kb5 Re2 Nc4 Kd5 Kb6 Re4 Ka7 Qe2 Nbd8 Re3 Na3 Re4 Nb1 Re3 Nc3+ Kc4 Nd5 e4 Qg5 Rf3 Qh4 Rf5 Ka8 Re5 Nb6+
1rb2B2/b4Q2/pb5P/Pq3BRR/2n2br1/b1K1k3/2Q2b1Q/rRR3n1 b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 a4 b5 e4 Ke7 a5 Qc7 Nc3 Qe5 Nh3 Qf6 Na4 bxa4 Nf2 Qd6 Qf3 Qb6 Nd1 Qd8 Ne3 fxe3 Qd1 Ke8 h4 Kd7 d4 f5 e5 g5 d6 Kc6 d7 Kd5 e6 Ke4 d5 e2 Kd2 e1B+ Kc2 a3 c6 a2 c7 g3 d6 f4 h5 g4 e7 f3 e8Q+ Ne7 h6 g2 Bf4 g1B Qg6+ Nf5 Rc1 a1B Qh7 f2 Bh3 f1R Bh2 g3 Qf7 a6 Bg2+ Ke3 Be4 g2 Rb1 Nh4 Qfd5 Nf3 Qa2 Nc6 Be5 Qe8 d8Q Rg8 d7 Ba3 Qh4 Rb8 d8R Bef2 Qf7 Rg4 Bg7 Be5 Bf5 Bf4 Rd5 Nce5 Bf8 Nc4 Kc3 Qb5 Qc2 Re1 Rb2 Ra1 Rb1 Bgh2 Qh3 g1B Qg2 Bhg3 Rh5 Bh4 Rc5 Be7 Rd5 Bec5 Qh2 Ba7 Rc5 Bh4 Rg5 Bgf2 Rd5 Ng1 Rh5 Bd8 Rc5 Bb7 c8R Bdb6 R8c6 Bc8 Rg6 Bbc7 Rgg5 Bd8 Rd5 Bdc7 Rdd1 Bcb6 Rdc1
1r3b2/2n3q1/qBrP1QQN/b3B1Q1/4r1Bp/3N3r/1r2QP1b/K2k1r2 b - - 0 1 illegal: No possible last move, all moves rejected
5BQ1/1b2Nbn1/r2n1p2/2Qb2P1/1Kn5/2rN2qN/1P2p1kN/r1B2Bn1 b - - 0 1 illegal: No possible last move
3B1B1k/1r6/3Pp1pb/4n2n/1B2Qqb1/QQb2P1r/1Nrn1K2/2nN1B2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 b4 a5 b6 Na6 b5 Ra7 Ra4 Nb8 Rb4 Ra8 h4 axb4 Rh3 Ra4 Rg3 Ra8 Ra3 bxa3 d4 Kf7 b7 c5 f3 c4 b6 c3 d6 c2 d7 g3 h5 g2 d5 a2 h6 a1N h7 g6 d6 Kg7 Ba3 c1N Qe2 e3 Qc2 e2 Qb2+ Nf6 Qd4 Ra7 Qe4 Nh5 Kf2 Nab3 Nd2 Nc6 b8Q Rb7 Nh3 g1R Bb4 Ne5 Nc4 Nd2 Qa7 Rg3 Nb2 e1B+ Ke3 Rg5 Qa3 Rg2 Nf2 Qc7 d8B Qc4 Nfd1 Bg4 Qa2 e6 Qa3 Rg8 h8B+ Kh7 Qf4 Bh6 Bg7 Rh8 Bf8 Kg8 Ba5 Rhh7 Bc3 Kh8 Bb4 Rbc7 b7 Rh2 b8Q Rh3 Qb5 Rc8 Bc3 Rb7 Qbb3 Qa4 Bb4 Rc2 Bg2 Bh4 Bf1 Bf6 Bc5 Qe4+ Kf2 Qf5 Qfc4 Qf4 Qcb4 Nd7 Qe4 Bc3 Bb4 Ne5 Qa8 Rh1 Qa5 Rh3 Qaa3
bR2BBQb/8/R6B/5b1K/1P1n1k1n/r1P1R2p/pR3pqb/Q1b3r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Rh2 d3 Rh3 Na6 Rh1 Nb8 c3 d5 Na3 d4 Nc2 dxc2 Nf3 d3 Bd2 c1B Nd4 Bd6 Nc2 dxc2 Rh3 Be7 Rh1 Bf8 Kf2 Kd7 Kf3 Ke6 Kg4 Ke5+ Kh4 h5 b4 f5 e4 a5 g4 f3 b6 f4 b7 a4 Rh2 f2 Be1 a3 Bb5 f1B Bg3 Nh6 Be8 Qd2 g6 Bg7 g5 Qg2 Ra2 Bd2 Qa1 c1B Rb2 Bf6 g7 a2 g8Q Ra3 Rh3 Bg7 g6 Nc6 Rh2 Nd4 b8B+ Kf6 e5+ Kf5 e6 f3 e7 f2 Bbd6 Bf4 Rh1 Bb7 Rg1 Bd3 Re1 Bbe4 Re3 Ba8 Bc5 Bd6 Be5 Bb1 Bf6 Kf4 Re6 Be5 Ra6 Bf5 Bd6 Rh7 Bc5 Bh8 g7 Ke3 Bd6 Bg3+ Kg5 h4 Kh5 h3 Qf7 Nf3 g8R Bh2 Bg7 Nh4 Rf8 Ke4 Qg8 Kf3 Bd7 Ke3 e8R+ Kf3 Re5 Kg3 Rb8 Kf4 Bf6 Rg7 Bf8 Ng4 Ree2 Ne5 Re3 Nc6 Be8 Rg3 B6g7 Nd4 Rbe2 Qb7 Rc2 Rg1 Rb2 Qg2 Bh6+
1nB4R/3p2kr/p1n1r2R/2P2qQ1/B4Bp1/1rqB4/Q3bP2/R1qn3K b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 f5 a4 fxe4 a5 e6 a6 Bc5 axb7 a6 b5 Ba7 h4 g5 h5 Bc5 b6 Nf6 Nd2 Ng8 Ndf3 Bd6 Nh4 Nc6 Qe2 Bb8 Qd1 Ba7 bxa7 Nb8 g4 h6 Nh3 gxh4 g5 Nc6 g6 Nb8 Ng5 hxg5 c4 Kf8 h6 d3 h7 e5 c5 e3 Bg2 g4 O-O h3 Qe1 h2+ Kh1 d2 Bd5 d1N Be4 e2 Bc6 e4 Bg5 e3 Ba4 Kg7 Rg1 Ne7 Qd2 e1R Qc2 e2 Bf4 Qf8 Qa2 Qf5 Rf1 Nec6 Rg1 Re8 h8R Re3 Rh6 Rb3 Rh8 Kf6 g7 Kf7 g8B+ Kg7 Bh7 Rb1 Kg2 h1Q+ Kg3 Qh6 Kg2 Rb3 Rh1 Qhf6 Rh6 Qc3 Kh2 Rh1+ Kg2 e1Q Bg6 Qed2 Bh7 Re1 Bg6 Re6 Kh1 Qdc1 Bh7 Ne7 Bg6 Nbc6 b8Q Bb7 Qd6 Nb8+ Qd5 Bc6 Bh7 Bb5 Qdd2 Be2 Bg6 Qg5 Bd3 Qf5 Qe3 Nbc6 Qed2 Rf8 a8B Nb8 Bd5 Rf7 Bb7 Nec6 Bc8 Rff6 Rh2 Rh6 Qe3 Rh7 Rh6 Qf7 Qe5+ Qf6 Qh5 Qf5 Qg5+
B1r5/Q1qrRn1p/pR1r3Q/Pq2Rn1B/PQ4K1/3r4/2r4p/r3Q1k1 b - - 0 1 legal: proof: d4 e5 e4 exd4 a4 f5 e5 Ba3 bxa3 c5 Nc3 c4 Ne4 c3 Bd2 cxd2+ Ke2 Qg5 Kf3 Qe7 Ke2 Qd8 g4 fxe4 h4 g5 h5 b6 Nf3 Bb7 Nh4 gxh4 g5 Nh6 g6 Bd5 g7 Bf7 Rh2 Bg6 hxg6 Ng8 Rh3 Qg5 Rh1 Qd8 c4 Ke7 f4 Ke6 a5 Kf5 a4 Kg4 f5 Kg3 f6 d5 f7 a6 f8Q b5 c5 h3 c6 b4 c7 e3 c8B h2 e6 b3 e7 b2 e8R b1Q Qf7 Ne7 g8Q Nd7 g7 Nf5 Bg2 d3+ Kf1 d4 Bd5 Qb5 Qb1 Ne5 Qc1 Qc7 Bd7 Rc8 Qe1+ Kh3 Rb1 d1R Qf6 e2+ Kf2 d2 Qgf8 d3 g8Q Nf7 Kf3 Rc1 Re3 d1R Re7 d2 Ba8 Rc2 Qgg1 Rd8 Be6 Rd7 Qa7 Rg8 Qfb8 Rc8 Rg1 Rd6 Rg5 Rd7 Rb2 Ra1 Qbb7 d1R Ba2 R1d6 Qh6+ Nh4+ Kf4 Rad1 Rd5 Kg2 Kg4 Rd3 Qbb8 Nf5 Rde5+ Qbc6 Qbb4 Qd5 Qec3 e1R Bb3 Ra1 Qe1 Rcd2 Bd1 Rc2 Kf4 Qdc6 Bh5 Q6b7 Kg4 Qd5 Qa3 Qdc6 Rb7 Q6b6 Qab4 Qb5 Qed2+ Kh1 Rb6+ Kg1 Qe1+
3R3b/2K2Nnk/3N3b/P1b1Q3/b2P1r1Q/1b2nq2/Q3qbrR/bQ1N1n2 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 f5 g4 fxe4 Bh3 Kd7 Bb2 Ke8 f5 h6 Be5 h5 Bf4 gxf4 g5 Nd7 Bg4 hxg4 Qc2 Nb8 Qb3 Nf6 Qd1 Ng8 Kf2 Kf7 h4 Kg7 a4 c5 d3 b5 a5 e5 f6+ Kh7 h5 b3 h6 e3+ Kg2 b4 f7 b2 d6 b3 d7 e4 Ra3 c4 Qc2 f3+ Kg3 f2 Kf4 f1N Ke5 e2 Nd2 e1B Rh4 b1Q Rh3 b2 Ngf3 g3 Qc1 c3 Nh4 g2 Qd1 g1B Ng2 c2 Ra1 c1B Ra2 e3 Qf3 e2 Rg3 Bgf2 Rg4 Ne7 Kd6 Rg8 Rg3 Nbc6 Qd5 Qe8 d8N Bd7 Ne3 Ne5 Kc7 Ba4 Qf3 Nf5 Qd5 Nc4 Nd1 B8c5 f8Q Nce3 Nf7 Ng7 Nc4 Bc3 Qe5 e1B Ncd6 Qe6 Qe7 Raf8 d4 Qd3 Qd7 b1B Qb5 Bbc2 Qb1 Bcb3 Rg1 Bh4 Rh2 Bef2 Rg4 Ba1 Re4 Kg6 h7 Qf5 h8Q Qe2 Rf4 Bhg3 Re4 Qff3 Qh4 Bd2 Nh6 Kh7 g6+ Kh8 Rg4 Rf4 Rg5 Bc1 Rf5 Bd2 Rf8 Bc1 Rd8 Bd2 Qhh5 Bh4 Qg4 Bf6 Qh4 Ne6+ Kb8 Rg4 Qd3 Ng2 Qc3 Bf4 Qc1 Nge3 Nhf7+ Kg7 Qc2 Bh6 Qb1 Rg2 Ng5 Rf8 Kc8 Kg8 Kb8 Bh8 g7 Bc2 Nh3 Kh7 Ng5+ Kg6 g8Q+ Ng7 Qgd5 Rf4 Ngf7 Kh7 Qda2 Bg6 Kc7 Bgc2 Qbb2 Bcb3 Qbb1+
8/1B2B2k/KP1b2n1/1Rr1bn1b/Q1RBP1RQ/1b1q3B/2r2q1r/3r2bq b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Kd2 f5 Kd3 Kf7 Kc4 Kg6 h4 a5 b4 d5+ Kd3 g3 c4 a4 e4 f2 b6 a3 b5 f3 b7 a2 c5 g2 b6 g1B h5+ Kh7 c6 f4 h6 Bd6 c7 Nd7 b8R Ra5 Rb1 a1B Qd2 Ne7 Rb2 Ne5+ Kc2 d3+ Kb3 d4 Be2 f1Q Rh4 f2 Bg4 f3 Qd1 d2 Bh3 d3 Rg4 N5g6 Kc4 Nf5 Qa4 d1B Rb5 Bae5 Ba3 Qf8 Bc5 d2+ Kb4 Ba6 c8B Bb3 Bb7 d1R Rc8 Qd3 Rc6 f1Q Rc8 Bc7 Be7 f2 Kc5 Bcd6+ Kc6 Kg8 h7+ Kg7 Rc7 Qe1 Rc8 f1R Rc7 Rf2 Rc8 Rg8 h8B+ Kh7 Bhf6 Rh8 Rc7 Bf4 Bd4 Bde5 Kc5 Qef1 Kb4 Rc2 Rc4 Qh6 Ba8 Bc8 Bb7 Qf2 Kc5 Be6 Kc6 Bf7 Kc5 Ngh4 Kb4 Bh5 g6+ Kg8 g7 Kh7 Kc5 Ng6 Kb4 Raa8 Kc5 Rac8+ Kb4 Rc5 Ka5 Bd6 Ka6 Bfe5 Bf6 Qhe3 Be7 Qef3 g8Q+ Kh6 Bc8 Qh1 Qd8 Kh7 Bb7 Rg8 Rg5 Ngh4 Bf8 Rg7 Rg3 Rg5 Qf6 Ng6 Be7 Rg4 Qh4 Rg5 Rf3 Rg2 Rg3 Rh2 Rg4
2q1rb2/Qqkq1rbB/3n2Qn/K3nPr1/2R4q/5PBB/1nB1R3/3b1Q2 b - - 0 1 legal: proof: b4 a5 d4 axb4 d5 g5 f3 g4 d6 g3 e4 f5 exf5 cxd6 Bh6 d5 Bc1 d4 Nd2 h5 Ne4 Qc7 Kd2 Qd8 Nf2 gxf2 g3 Qc7 g4 Qd8 g5 Qb6 Nh3 Qf6 Nf4 Qb6 Nd3 Qa5 Ne5 Qd8 Ng4 hxg4 c4 d5 a4 Kd7 h4 b5 c5 e5 g6 e4 a5 g3 g7 d3 h5 g2 c6+ Kc7 h6 g1B h7 b3 Kc3 d4+ Kd2 b2 a6 b1Q a7 b4 Ra4 b3 Be2 f1N+ Ke1 b2 Qb3 e3 Rh6 d2+ Kd1 Bd7 Bd3 Ng3 Bc2 Ne4 Ra6 Qc8 Rg6 Nh6 g8B Nd6 Ra4 Be6 Qa3 Bb3 Rg2 Nd7 Re2 Ne5 Qa1 Rb8 a8Q Rb7 Rc4 Bg7 Be6 Re8 h8Q Bf2 Bg8 Bh4 Re1 Be7 Q8a7 Bef8 Bh7 Ba4 Ke2 d1N Qg8 Bb3 Qe6 Ba4 Qg6 d3+ Kf1 d2 Ke2 Nd7 Kd3 Ne5+ Kd4 e2 Kc5 Bb3 Q1a6 Ba4 Qb5 Bb3 Kb4 Ba4 Rf1 e1Q Ka5 Qh4 Re1 Bb3 Re2 Ba4 Bb3 Qd3 Bc2 b1Q Ba3 Nb2 Bc5 d1R Bf2 Rg1 Bg3 Kd8 Qba6 Rf7 c7+ Kd7 Bh2 Rg5 Bg3 Qd5+ Qb5+ Qc6 Qba6 Qd1 Qb5 Qb7 c8B+ Kc7 Be6 Qd3 Bd5 Qdd4 Bde4 Qd5 Bed3 Qe6 Qba6 Qc8 Qb5 Nd1 Qb1 Nb2 Qf1 Qd7 Bb1 Bd1 Bbc2 Qc8 Ree4 Qf4 Qh3 Qb8 Bf1 Qh4 Re2 Qc8 Qh1 Nhg4 Bh3 Nh6 Rf4 Q6d7 Qf1 Re6 Ra4 Re8 Rc4+
1Nnqb2K/Nkr2r1Q/q2nq3/bR1pP3/Q7/q6n/R1Pb2Q1/1R2q1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1nNrb1KQ/3q2p1/3B4/N2kP2n/N1q1r2b/2bNr3/2BB1QP1/qb3n2 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 d4 cxd4 f4 exf4 Ra3 h6 Rf3 h5 h4 Rh7 Rhh3 Rh6 Rhg3 Rh8 Rg4 hxg4 Bb2 gxf3 Ba3 Qa5 Bc1 Qd8 Kf2 Ke7 c4 Kd6 e4 a5 h5 f5 b6 d3 b7 d2 b5 a4 b6 a3 h6 a2 h7 a1B Be2 Bc3 Qa4 d1Q Qc2 Ra3 Qa2 Be7 Bb2 Nf6 Bc1 Re8 h8Q Nh5 c5+ Kc6 Bd3 d5 Bc4 d4 Nh3 d3 Bd2 Qd7 Bb3 Rd8 e5 Qc2 Ke1 Bh4+ Nf2 Ra4 Kf1 Re4 Kg1 Qb2 Kh2 Qa1 Bc2 Re3 Qb2 Kd5 Kh3 Re4 c6 Re3 Bc1 d2 c7 d1R Bd2 Rde1 Nd3 R1e2 Na3 Re4 Nc4 f2 Na5 f1N Qa2+ Kd4 Qf7 f3 Qff8 f2 Qf6 Nc6 b8N Kd5 Na6 Nb8 b7 f4+ Qf5 f3 Nac5 R2e3 Na4 Na6 b8B Bb7 c8N Bc6 Bd6 Nb8 Nac5 Ba4 Bd1 Bc2 Na4 Bb1 Bc2 Nfg3 Qe8 f1B Qf8 f2 Qh8 Qf7 Qf6 Be2 Qf4 f1Q Qf2 Qe8 Ne1 Bb5 Nd3 Nf4+ Kg4 Qc6 Nc1 Qfc4 Nd3 Nf1 Kf5 Nh5 Kg6 Qb7 Kh7 Be8 Kg8 Qbb5 Nab2 Qd7 Na4
rb3n2/nr3p1R/1nq2kqn/n1N1RR1R/3q2Q1/1nPQ2QK/4P2N/1b6 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 h5 Bg2 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Bb7 Bf5 Bc8 Bg4 hxg4 b4 Ke7 h4 f1Q h5 d5 h6 a5 g6 a4 h7 d3 g7 g3 b6 f3 Ke3 d4+ Kf4 g2 Kg3 a3 b5 a2 b7 d2 b6 d3 Rh2 f2 Na3 Nd7 b8Q Kf6 b7 Bd6+ Kg4 Nf8+ Kh4 Bf5 Nc4 Nh6 Qa7 Bb8 g8R Qd4+ Rg4 Be4 Qb1 d1N Nh3 g1Q Ne3 d2 Qb3 Qfg2 Nf1 Nc3 Ng5 d1N Ne6 Nb2 Nc5 Nc4 Qaa4 Nb5 Rg5 Na7 Qd3 Nb6 c3 Qf3 Rb1 a1N Rb5 Nb3 Rh3 Qgg2 Nh2 f1N Qac4 Rg8 h8R Na5 Rh7 Nd2 Re5 Ndb3 Rg3 Qd5 Rgg5 Qd4 Rh5 Qg6 Reg5 Qf4+ Kh3 Qc7 Qb4 Qc6 Qbc4 Be5 b8Q Bg3 Qf4+ Bf5+ Qg4 Bb8 Qg3 Bb1 Re5 Nfd7 Qcd3 Rc8 Na4 Rc7 Rbd5 Nf8 Nc5 Rd7 Reg5 Rc7 Rde5 Rb7 Rgf5+
2N2b2/b2K4/1R2p2R/3kRb1q/RPnn1qQr/5PNr/1Qr1pn2/1Q3n2 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 axb5 fxe4 d5 g4 d6 cxd6 Qd3 d5 Qd1 d4 Bf4 Qa5+ Ke2 Qd8 Kd2 h6 f3 h5 Be3 Bh6 Bc4 Bg7 Bf2 Bf8 Be6 g3 Bh3 gxf2 g4 Nc6 g5 Nb8 Bg4 hxg4 c4 Kf7 h4 Ke6 b4 f1N+ Kc2 d5 Kb3 a5 Ka4 g3 h5 e3 g6 g2 b6 e2 Kb5 a4 c5 a3 g7 a2 h6 d3 b7 d4 c6 d2 c7 d3 h7 Nh6 g8R Kd5 Rh4 Nc6 b8R Nf7 Kb6 Qe8 Qe1 d1R Qg3 Nd6 Qg4 Bf5 c8Q Qh5 Kc7 Rd2 Rg5 Rc2 Nd2 Nc4 Rb6 Nd4 Ne4 Ra5 Nd6 d2 Nh3 d1N Nf2 g1Q Nh1 e6 Kd7 Qh2 Ng3 Nf2 Qe8 Rc5 Qg6 Ra5 Nc8 Ra8 Rb1 a1B Rb3 Bb2 Ra3 Bc1 Ra4 Be3 Nh1 Qf4 Ng3 Rg8 h8Q Ra7+ Ke8 Rh7 Qf6 Rh6 Kd7 Rgh8 Qfg7 Nb3 Qb2 Bd4 Rb7 Ba7 Rb6 Nd4 Qb1 R8h7+ Qg7 Qg6 Rh2 Rh3 Rh1 R7h4 Qf6 Nc6 Qfb2 Nd4 Rh5 Nfe3 Rh6 Qh5 Rd1 Nf1 Rd3 Bh7 Re3 Bf5 Re5+
5K2/P4nNR/1Qnpb3/1p2b3/1r1b1N2/1b1Q1Qqk/1Q1nP2q/2rrN1R1 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 axb4 d4 c5 Bf4 g5 Bh3 gxf4 g5 cxd4 Bg4 hxg4 Kf2 Ke7 c4 Ke6 a4 Kf5 h4 b5 a5 d6 c5 g3+ Kf3 g2 g6 b3 a6 b2 g7 d3 c6 d2 e6 Nh6 g8Q Qg5 a7 Bg7 h5 Be5 c7 Nc6 e7 Be6 e8N Rc8 Nh3 g1B Qf8 Bgd4 Na3 b1R Nc2 Rb4 Ne1 f6 Rg1 Nf7 h6 Qg8 Qb3 d1B h7 Bc2 Qc3 Bcb3 Qc5 Qg7 Qb6 Rg8 h8Q Qh6 Ng5 Qh2 Ne4 Rg4 Rh1 Rg1 Ng3+ Kg5 Ke4 Kg4 Qhg7+ Kh3 Nh5 f3 Qh7 f2 Neg7 f1Q Qg6 Rd8 c8Q Qf2 Qca6 Rc8 Qa3 Qg3 Qb2 Ne7 Qh7 Rc1 Qa8 Rd1 Qd5 Nc6 Qf5+ Kh4 Qf3 Kh3 Qc4 Bd7 Kd5 f5 Rb1 f4 Rc1 Bc2 Qcd3 Bb3+ Rc4 Rf1 Rg1 Bg4 Qf5 Rc1 Ke6 Rd1 Qd3 f3 Kd7 f2 Ke8 Rc1 Qff3 Be6 Kf8 Rd1 Rg2 Rh1 Rg1 f1N Rc5 Bf6 Rg5 Bfe5 Rg6 Nd2 Rh6 Rc1 Rh7 Rd1 Rg2 Rf1 Rg1 Rc1 Nc2 Rfd1 Ne1 Bd7 Qbc3 Bc8 Qb2 Bce6 Nf4#
2r5/1R5Q/K2nR1rP/1N1knbp1/R1R4q/1rQ2n2/nb2PNp1/N1r2r2 b - - 0 1 legal: proof: g4 f5 a4 fxg4 d4 g3 Kd2 e5 d5 b5 axb5 h5 d6 e4 Ra4 e3+ Kd3 cxd6 Ra2 d5 Ra1 d4 Bh3 g2 Bg4 hxg4 Bd2 exd2 Kc4 Ke7 f4 Ke6 b4 a5 h4 g3 b6 d5+ Kb5 a4 c4 a3 b7 d3 h5 d4 c5 a2 f5+ Kd5 c6 Nh6 c7 Rg8 f6 Nc6 b8Q Ne5 f7 Qh4 Nh3 g1N Qc2 d1N Nd2 g5 Nf2 g2 Qa7 Nf5 h6 Bg7 f8R Ngf3 Nb3 d2 Qc3 d3 Re8 Nd6+ Kb6 Be6 c8N Bf5 b5 Bf6 Rf1 Rg6 Re6 Bh8 Rc1 a1R Qh7 R1a3 Na1 Rb3 Na7 Rc8 Ka6 Bf6 b6 Bg7 Qc2 Nc3 b7 d1R b8R d2 Rb7 Na2 Qc3 Re1 Rc2 d1R Nb5 Rc1 Rg1 Rf1 Rh1 Qg4 Rh4 Qh5 Ra4 Qh4 Qc7 Nef7 Qa5 Bb2 Rcc4 N7e5 Qc3
Q1K1B3/q3Qq1r/kNp1n1P1/B3b1B1/p2PNb2/NB1r4/r1r5/n2b2b1 b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 h4 g5 c4 dxc4 f4 gxf4 b4 e6 g5 e5 Ra3 e4 Rf3 exf3 Rh3 Ne7 Rg3 Ng8 Rg4 hxg4 Kf2 Kd7 d4 f5 e4 a5 h5 c6 g6 Kc7 h6 Kb6 h7 c3 e5 g3+ Ke1 c2 Kd2 f2 Kd3 f3 Kc4 g2 e6 f4 e7 Nf6 e8B Nbd7 Bb2 c1B Nd2 Nd5 Qa4 Bd6 Nb1 Qc7 Qa3 Nc5 Bc3 Be5 Nh3 g1B Ng5 Ne6 Ne4 Qa7 Bh3 Kb7 b6 f1R b5 f2 Qe7+ Bd7 Bf5 f3 Na3 Nb4 Bd2 Re1 Bg5 f1R Bg4 f2 Bd1 Re2 Bb3 Nc7 Kc5 Bg4 Bc4 Nc2 Bb3 Rg8 h8B Na1 Bhf6 Rg7 Bd2 Re3 Bg5 Rd3 Bb4 Bd1 Be1 Bf6 Kd6 Be5+ Kd7 Rh7 Bb4 Bcf4 Bc3 Kb8 b7 Re1 Bb4 f1Q Kd8 Re2 Kd7 a4 Ba5 Ra2 Kd8 Rhh2 Kd7 Rhc2 Kd8 Qc5 Kd7 Ka7 b8N Kb7 b6 Ra7 Kd8 Qf2 Nd7 Ka6 b7 Ne6+ Kc8 Qb6 b8Q Rb7 Qf6 Qa7 Nb6 Rh7 Qe7 Bd2 Bb4 Qf7 Qa8 Bdf4 Ba5
KQbr1nN1/Q5Pn/k2q3N/1np1BB1p/qQP2nn1/3r1N1Q/8/2n3r1 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 e4 e5 h5 g6 h6 Bd6 Rh3 dxe4 Rh1 e3 Ke2 e4 Ke1 Be5 fxe5 Qd6 Bc4 Qf6 Bf1 Qd8 a4 Kd7 g4 Ra7 g5 Ke8 Rh5 Ra6 Ra3 Ra8 Rc3 Qe7 Rc6 gxh5 g6 Qd6 g7 Qd8 Rg6 hxg6 Ke2 Kd7 d4 Kc6 c4 Kb6 e6 f5 a5+ Ka6 e7 b5 e8Q c5 d5 g5 d6 g4 h7 b3 d7 f4 Bh3 f3+ Kf1 f2 Kg2 f1N Nf3 b2 Nfd2 b4 Nc3 b1N Nb5 b3 Bb2 g3 Qf3 e2 Bc1 b2 Nd4 e3 Nf5 Na3 Nh6 b1Q Bb2 Nf6 Ng8 Qa2 Bf5 Nb5 Be5 Nh2 Qg4 e1R Qh3 e2 Nf3 Nhg4 Qe6+ Qb6 d8N Qa4 Nf7 Qd6 Nfh6 Nbd7 Qd5 Rh1 Qd2 Nf8 Qb4 Ra7 Nd4 Rd1 Kf3 e1N+ Kf4 g2 Nf3 Nh2 Ke3 g1N Kf4 Rd7 Ke3 Ka7 a6 Nhg4+ Kf4 Kb6 a7 Ra1 a8Q Nd3+ Kg3 Nc1 Kf4 Rd8 Qb8+ Ka6 Qc7 Ne8 Ke4 Nge2 Qf7 Nb3 Qd7 Rg1 Qe7 Nbc1 Qd7 Qe7 Kd5 Nf4+ Kc6 Nef6 Qc7 Rd3 Qd7 Nd4+ Kc7 Qe6 Kb8 Nb5 Ka8 Qd6 Ne7 Rg8 h8Q N6h7 Qc7 N8g6 Qb8 Re8 Qg8 Rf8 Qf7 Rd8 Neg8 Ngf8 Qfa7+
n1Q2k2/1rQ1q2Q/R1QPnqpr/2b2p1N/1q2r3/R6n/K2R1PN1/6rn b - - 0 1 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 Bd3 d5 Qd2 g5 Be2 d3 Bf1 d4 Qe2 Be6 Qd1 Bd5 exd5 Qc8 Be3 Qc7 Bc1 Qd8 g4 Ra6 h4 Nd7 h5 Ra3 Bg2 Nb6 Be4 Nh6 Bg6 Nd7 Bf4 Ng8 Bg3 Ra8 Bh4 gxh4 g5 Bh6 Be4 Bf8 g6 Nb8 g7 Qd6 Bf5 Qd8 Bg6 hxg6 Kd2 f5 Kc1 b5 Kb2 e5 a4 e4 c4 h3 h6 d2 c5 d3 c6 b3 h7 e3 a5 h2 c7 b4 c8Q e2 a6 e1N a7 Nf3 Qc6+ Nd7 Ra3 Qe7 Ne2 Nf6 g8Q Ne4 Ra1 Nc5 Ra2 Ng1 Qa4 Nh3 Rg1 h1N Qg7 Ne6 Qf1 d1R Qc6 d2 Nf4 Rb8 a8R Re1 R8a7 d1R Nh5 Re4 Rg3 Rb7 Qfb5 Rg1 Nd2 Qf6+ Rc3 Bc5 Nf1 Qe7 Qe5 Kf8 R7a6 Nb6 Qec7 Na8 d6 Qf6 Kb1 b2 Rca3 Qe7 Q6d7 Qf6 Qbc6 Qe7 Kc2 b3+ Kc3 b1Q Rd2 b2 Ne3 Qd1 Ng2 Qg4 Kc2 b1Q+ Kc3 Qa1+ Kc2 Rg8 h8Q Qaf6 Qh7 Rh8 Rb6 Re5 Kb2 Qb4+ Ka2 Re4 Rba6 Rb8 Qa7 Rb7 Qdc7 Qd8 Qhd7 Rh6 Qh7 Qde7 Q7d7 Rb8 Qac7 Rb7 Qdc8+
1nbB2Qn/RR1R3r/1Q3r2/3nqPpp/3rqR2/1KQ3b1/p1B4P/5b1k b - - 0 1 legal: proof: e4 b5 b4 g5 f4 d5 a3 dxe4 a4 c5 axb5 cxb4 g4 f6 Nc3 Qd3 Nd5 Qd4 f5 Qd3 Nf4 Qd4 Ngh3 gxf4 g5 Qd7 g6 Qd8 Ng5 fxg5 d4 Kd7 Kd2 Kd6 c4 a5 Kc2 e5 c5+ Kd5 g7 h5 c6 b3+ Kb2 e3 c7 Ke4 d5 e2 b6 Kf3 d6 e4 d7 e3 b7 a4 Qd2 e1Q Ra3 e2 Qc2 Qf6+ Kb1 Ne7 g8Q Rh7 d8R Qe5 Qb2 Ng6 Rd1 Bd6 Rd2 Nh8 Qd8 Ra6 Ra1 a3 Qg8 Rc6 Qd4 b2 Ka2 b1N Bb2 Nc3+ Kb3 Nd5 Qb6 Qb1 Rg1 e1R Bd3 Re4 Rg4 Rd4 Bc2 Qbe1 Rdd1 Q1e4 Bc3 Kf2 Ba5 f3 Rf4 Kg2 Ra2 f2 Rd3 Nd7 b8R f1B Rb7 Kh1 Rd1 Nb8 Rd2 Bd7 c8Q Bc7 Ra1 Rf6 Rd3 Bd6 Qc3 Bc8 Qbb4 Qe8 Bd8 Q8e5 Qb6 Bc7 Rb1 a2 Ra7 Bd6 Rf2 Nb4 Kb2 Q5f4 Qbc5 Rc4 Rff3 Bc7 Rd7 Rd4 Ka3 Nd5 Rbb7 Qd6 Kb3 Qde6 Q5a5 Bg3 Rf4 Q6e5 Qb6
3R4/3p2K1/5p2/1NNn1b2/rP3knp/QRRPr1Q1/Rbnr1b2/2Q1q1q1 b - - 0 1 legal: proof: a3 b5 Nc3 c5 Nb1 b4 axb4 c4 h4 g5 f4 e5 b3 cxb3 Ba3 exf4 Bb2 Ke7 Bc1 Ke8 g4 Qb6 h5 Qa6 Bb2 Qa5 Bd4 Qc7 Bf2 Qd8 Bh4 gxh4 g5 Qf6 g6 Qb6 g7 Ke7 Bh3 Ke8 Bf5 Qd8 Bg6 hxg6 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 e4 a5 c4 f3 c5 f2 c6 f1Q c7 g5 h6 b2 Kh5 g4 d3 a4 h7 g3 Nf3+ Kf4 e5 a3 e6 a2 e7 g2 e8R g1B Qb3 Nc6 Qd5 Bf2 Rg1 Qe1 Rh1 Nge7 Kh6 Bb7 c8R Ne5 Qc6 Ra4 Ng5 Qb6 Ne4 Nd5 Na3 b1R Red8 Rd1 Nb5 Rd2 Nc5 f6 Rh2 Bd6 g8Q Ng4+ Kg7 Be5 Rb1 a1N Rb3 Nc2 Rg2 Bb2 Qc7+ Kf5 Qg3 Kg5 Qe6 Rf8 h8Q Re8 Qc6 Re3 Qe8 Nf4 Qc7 Be4 Qee5+ Bf5 Qc3 Nd5 Qa7 Na3 Qc1 Nc2 Rc7 Qe6 Rc6 Qe4 Rh2 Q4h1 Rcc8 Qhg1 Qa6 Ra2 Qa3 Bd4 Qa6 Rd1 Qa8 Na3 Qd6 Bg3 Rc2 Bf2 Qg3 Rd2 Na6 Ba1 Rcb2 Nc2 Rcc3 Ra5 Ra2 Bb2 Nc5 Ra6 Qb7 Ra7 Qa6 Ra8 Qg2 Kf4 Qa3 Ra4 Qg3+
4K1n1/pbNRQ1k1/1qn1bp2/2N1q2R/2b1qNrP/N3p3/P2Rr3/Q4r2 b - - 0 1 illegal: No possible last move, all moves rejected
2n3N1/P1npb1BQ/3n4/1b1kQ2p/1B3r1r/1N1Pq3/NK1prQ2/4rr1N b - - 0 1 legal: proof: e4 a5 b4 axb4 a4 f5 exf5 c5 d3 c4 Na3 c3 Bb2 Qa5 Qe2 Qe5 Rd1 Qc7 Rd2 Qd8 h4 g6 g4 Qa5 h5 Qb5 h6 Qa5 Rh5 gxh5 Bg2 cxd2+ Kf1 Qd8 Bh3 Nc6 Kg2 Na5 Kh2 Nc6 Bf1 Nb8 Kg3 Na6 Kg2 Nb8 g5 Bg7 g6 Bf8 g7 Kf7 Kh1 Ra5 Bg2 Rb5 Bd5+ Ke8 Kg2 Ra5 Kf1 Ra8 Ba2 Qa5 Bf7+ Kd8 Bg6 hxg6 Nb5 Ke8 Na3 Qd8 c4 Kf7 f4 e5 a5 b5 c5 g5 h7 b3 a6 e4 f6 Ke6 a7 e3 f5+ Kd5 c6 b4 f7 g4 c7 g3 f6 Qe8 Qg4 g2+ Ke2 Ba6 Kd1 Bb5 c8Q Be7 f8N Na6 f7 Nc7 Be5 b2 Kc2 b1R Qg6 e2 Ne6 e1R Ne2 g1R f8B Rgf1 N6d4 b3+ Kc3 b2 Nac2 Rbd1 Ng3 b1N+ Kb2 Nc3 Nh1 Ne4 Nb3 Nd6 Qb8 Re2 Qg1 Rde1 Qf2 Re4 Bc3 Rh4 Bb4 Re2 Qbb6 Rb8 Qa5 Rb6 Qa1 Rc6 Qae1 Rcc4 Qa1 Rcf4 Qae1 Nf6 g8N Nc8 Bg7 Ne4 Qa1 Ned6 Qa5 Ne6 Qc7 Rfe1 Qc3 Nc7 Qe5+ Kc6 Nf6 Rg8 h8Q Rf8 Ng8 R8f5 Qh7 Rf6 Nc1 Rf7 Na2 R7f6 Qc3+ Kd5 Nd4 R6f5 Qg1 Rff1 Nb3 R5f4 Qf6 Qf7 Qb6 Qe6 Qf2 Qe3 Qe5+
1rQ4r/N4bb1/3rpnk1/Q2nK1b1/P1r1Np2/4qP1p/1B3B2/NNnB4 b - - 0 1 legal: proof: b4 a5 e4 axb4 c3 bxc3 h4 g5 h5 d5 exd5 Nh6 a3 Ng8 g4 h6 a4 Qd7 Rh4 Qd6 Ra2 Qd8 Rb2 Nc6 Rb4 Nb8 Re4 Nc6 Re5 gxh4 g5 Nb8 g6 Be6 Rf5 Bc8 Rg5 hxg5 Ke2 c5 Kf3 f5 d4 b5 d6 h3 g7 Kf7 d7 c4 h6 g4+ Kf4 c2 h7 g3 f3 g2 d5 c3 d6 b4 Bd2 c1B Qe1 c2 Ke5 b3 Kd5 b2 Bb4 Na6 Bc5 Nf6+ Ke5 Nb4 g8N Nbd5 Qa5 Bg7 Bf2 Bg5 Ne2 g1R Nd4 c1N Be2 f4 Nb3 Rd1 Na1 Qb6 d8Q Rb8 d7 Kg6 Qc7 e6 d8N Bd7 Nc6 Be8 Na7 Bf7 Qc8 Rd4 Bd1 Rc4 Nh6 Qc5 Nf5 Qa3 Ng3 Qe3+ Ne4 Rb6 Nd2 Rd6 Nb1 Rg8 Na3 b1R h8B Rb8 Nb1 B7h6 Bg7 Rh8 Bf8 Bg7 Be7 Rdb6 Ba3 Rd6 Bb2
RQ3R1N/8/1n1r3P/r1q2r2/P1qbRppp/Q2b2kr/5N1q/2QnK1R1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 cxd5 e5 h5 exf4 g4 Qe7 Bb2 Qd6 Bd4 Qf6 Bf2 Qd8 Bh4 gxh4 g5 Qd6 g6 Qa6 g7 Qh6 Bh3 Qf6 Bf5 Qd8 Bg6 hxg6 Na3 f3 e4 Kd7 d4 Kd6 h6 b5 Rc1 c5 Qe2 f5 Rb1 g5 Kd2 f2 Nh3 f1R Qh5 g4 Rc1 c4 Ke2 b3 Qg5 b2 Kd2 b1Q Rh2 c3+ Ke2 b4 Rg2 c2 Rf2 b3 Qe3 b2 Rd1 Nf6 g8Q c1Q Qgg5 Qdc7 Qc3 Nbd7 e5+ Ke7 d6+ Ke6 Qg3 Nb6 Nc4 Bg7 a4 Nfd5 Qa3 Qe4+ Qge3 Rh1 Rg1 b1R Rf4 Rb3 Nf2 Ra5 Rf3 Ba6 d7 Rbb5 d8Q Rh3 Nd6 Qf4 Nf7 Qh2 Qeg5 Qcf4 Ke1 Ne3 Qa8 Rf8 Nh8 Rf6 Qe8+ Kd5 e6 Nd1 e7 Ke6 d5+ Ke5 Qd8 Rc5 Qc8 Bd3 e8R+ Re6 Rf8 Qc4 Qgc1 Rf6 Re3+ Kf4 Qa8 Re6 Qd8 Bd4 Re4+ Kf3 Qd6 f4 Ra8 Qe7 Qb8 Rcb5 d6 Rf5 d7 Qec5 d8R Rd6 Rh1 Kg2 Rf8 Kg3 Rg1+
8/Q1rqNBp1/PP2B3/Nb1qpBB1/4n1nr/kb2QKbn/pnN5/8 b - - 0 1 legal: proof: b4 c5 a4 a5 d4 h5 dxc5 f5 g4 hxg4 e4 fxe4 b5 Rh7 Ra2 Rh8 h4 b6 Rb2 Ba6 Rb4 Bc8 Rh3 Rh7 Ra3 axb4 a5 Rh5 a6 Rh8 Ra5 bxa5 Ke2 d5 f4 Kd7 c4 a4 c6+ Kd6 h5 Kc5 c7 e3 f5 g3 h6 g2 b6 a3 f6 b3 h7 Kb4 c5 b2 c6 a2 f7 d4 Nc3 b1Q Ne4 d3+ Kf3 d2 Ne2 g1N+ Kg3 Nd7 Nf4 e2 Qe1 Nh3 Ng6 Ne5 Nc5 Qe4 Nb3 Qd7 Na5 Ng4 Qf2 e1N Qe3 d1B Bc4 e5 Ne7 N8f6 Bd5 Bb7 c8B Ra7 c7 Nd3 Be6 Bb3 Bc4 Qdd5 Bf5 Qed4 c8B Nb2 Bce6 Ne4+ Kf3 Ka3 Bd2 Bc6 Bc1 Rg8 h8Q Bb5 Qh4 Rh8 Qhf2 Qc6 Qfd2 Qdc5 Qd7 Q5d5 Qb7 Qe8 Qa8 Rc7 Qa7 Qc8 Bd7 Qcb7 Qd2 Rh4 Nc8 Bc5 f8N Be3 Ne6 Qd3 Ne7 Qc6 Nd4 Qa8 Bf7 Qd8 Bde6 Qd7 Qc3 Bf2+ Be3 Qc4 Bg5 Bg3 Qe3 Qcd5 Nc2+
1n1Bb1Br/n2p3Q/1n1p1KP1/1Q2Q1pN/1b2q3/1q1N3n/1q1r1P1Q/3Nk3 b - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 g5 a4 b5 axb5 Bh6 d5 Bf8 d6 cxd6 g4 h6 b4 Qb6 h5 Qc7 Rh4 Qd8 Ra3 Nf6 Rg3 gxh4 g5 Ng8 g6 Qa5 Rg2 Qd8 Rg5 hxg5 Ke2 a5 Ke3 e5 c4 Ke7 b6 Ke6 h6 Kf5 c5 h3 h7 a4 b7 h2 b5 h1Q c6 a3 c7 a2 b6 a1Q Qd2 Kg4 Qb2 Nf6 Bd2 Ra2 Qb5 Nd5+ Ke2 e3 Kd3 e2 Qa5 e1N+ Kc4 e4 Nh3 Kf3 Be3 Qb2 Nc3 Bg7 Nf4 Nd3 Nd1 Bc3 Nh5 Bb4 Bc5 Qb3+ Kd4 N3f4 Bc4 e3 Qb5 Kg2 Ke4 e2 Kf5 Kf1 Bd4 Nh3 Bf6 Qg8 Bd8 Rd2 Qc5 Ke1 Qd4 Qa2 Qe5 Qb2 Ba2 Nc3 Kf6 Nb5 Bc4 Na7 Bb3 Na6 b8N Bb7 c8Q Qe4 Nc6 Nb8 Bd5 Ba6 b7 Bc4 Be6 Ba2 Bc4 Qgd5 Bb3 Qb5 Bg8 Qb3 Qh2 Qb2+ Ne5 Bf7 Qc5 Be8 Qd5 Qa4 Qe6 Qab3 Qf5 Kf1 Qe6 e1N Qd5 Nf3 Qc5 Q2a2 Nd3 Ne5 Qd5 Nc4 Qde5 Nbc6 b8Q Qab2 Qb7 Nb8 Qb5 Nb6 Be6 Rg8 h8Q Ke2 Qh6 Rh8 Qh7 Kf1 Bg8 Ke2 Nc1+ Ke1 Nd3+
1q1r1b2/1pQr1R1P/bbN1r2q/2Pp1n1k/2bN4/p1Q5/4R1NK/n1N4Q b - - 0 1 illegal: No proof kernel
2N1n1b1/pQ1K1p1b/n1rPnN2/n3RN2/2rP4/Q3bp1q/q3kQ2/3N2R1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 f4 e5 g4 exf4 a4 b5 b3 bxa4 Bh3 g5 Bb2 Bc5 Qc1 Ba3 Kd1 Bd6 Be5 f3 Bf4 gxf4 g5 f2 Bg4 hxg4 Kc2 Na6 Qd1 Bf8 Kc1 Nb8 Kc2 Kd7 Kc3 Kd6 Kd4 f1B h4 a3 e4 f3 h5 g3 b4 g2 g6 a2 b5 Na6 h6 Nf6 g7 Ne8 g8N Bd3 h7 Qd7 b6 Bh6 b7 Qh3 b8Q Bf5 Ne2 g1N Qb7 Rc8 Nbc3 c6 Rc1 a1Q Ng3 Qa2 Qe2 Bc2 Nd1 c5+ Kc3 Ke5 d4+ Kf4 e5 c4 e6 Bcd3 e7 Rc6 Qf2 Bc2 Nf6 Ne2+ Kd2 Rf8 h8Q Bh7 Rg1 Bg8 Nf5 Bg5 Rb1 Bh6 Rb5 c3+ Ke1 Bd3 Qg7 c2 Kd2 Nc3 Rc5 Nb5 Qh7 Nbc7 Kc3 c1N Qh8 Ng7 e8N Nb3 Ned6 Nce8 Nc8 Na5 d6 Ne6 Qh7 Nac7 Kb4 Be4 Nfe3 Na6+ Kb5 Bg5 Qh6 Beh7 Qg6 Bh6 Qd3 Bg5 Qa3 Bh6 Nd7 Ke4 Nf5 Be3 Qa4 Kd3 Re5 Rc4 Nf6 Rc6 Qh4 Rc4 Qa3+ Ke2 Qc5 Nb3 Kc6 Na5+ Kd7 N8c7 Nce7 Rc8 Qa3 Ne8 Qg3 R8c5 Nc8 Rc6 Qf2#
8/brN4q/3p1p2/bp1q1R1Q/QQ1bN2P/Q4NK1/1qRPk2n/4nbb1 b - - 0 1 legal: proof: e4 a5 b4 f5 g4 h5 c4 hxg4 c5 Ra6 Bc4 b5 Bf1 Rb6 cxb6 axb4 f4 Nf6 Bd3 Rh7 Bb2 Nd5 Bf6 Rh8 e5 Kf7 Be4 fxe4 f5 Ke8 Bg5 Nf6 Bh4 Ng8 f6 Kf7 Bg5 Ke6 f7 Na6 Nf3 Nb8 Bf6 exf6 Ng1 Ke7 Kf2 Ke6 a4 Kd5 h4 Kc4 a5 Kd3 a6 c5 b7 g5 a7 g3+ Kg2 c4 a8Q g4 e6 c3 e7 c2 e8Q c1Q Nf3 e3 Qa6 e2 Nc3 e1B Ra4 b3 Rg1 b2 Qe7 b1Q Qc5 Nc6 b8Q Ne5 Qba8 Rh7 Qab6 Bf2 Qe7 Nh6 Rf4 Bd4 Qaa6 Qcb2 Qe8 Bb4 f8N Ba5 Ng5 Nf3 Rf5 Ne1+ Kh1 g2+ Kh2 g3+ Kh3 Ng4 Qaa7 Nh2 Qc5 d6 Qc1 Rb7 Nce4 Ke2 Nfe6 Qb6 Q1c3 Qc6 Q3b4 Qd5 Nf3 Qd3 Rh1 g1B Nc7 g2 Qh5 Bgf2 Qc2 g1B Qca4 Bfe3 Qa6 Ba7 Kg3 Bed4 Rg5 Bh3 Rf5 Bf1 Qaa3 B5b6 Q6a4 Ba5 Kf4 Bgf2 Rg1 Qdb1 Rg4 Bg1 Kg3 Q1c2 Rgg5 Qdc4 Rc5 Qd5 Rf5 Qcb1 Neg5 Qbe4 Rc2 Qe7 Ne4 Qd7 Kf4 Qh7 Kg3
R1Br4/3pqQ1k/K2P2nr/R1r1q2p/BBpqrb2/4nn1P/8/3B2QR b - - 0 2 legal: proof: c4 e6 b4 e5 d4 a6 b5 axb5 d5 bxc4 Na3 c3 Nb5 Be7 Nd4 exd4 Ba3 Bb4 Bc1 Bf8 e4 g5 Ne2 b6 Nf4 Ba6 e5 Bd3 f3 Be4 fxe4 gxf4 Ke2 c5 Kd3 h5 Kc4 f5 Kb5 Kf7 g4 Kg7 a4 d3 g5 d2 a5 c2 e6 f3 e7 f2 e8Q f4 g6 f3 a6 Ne7 h3 Nbc6 e5 Rh6 e6 Nd4+ Kc4 b5+ Kd3 b4 Kc4 b3 d6 b2 a7 b1Q Ra5 Qb2 Bd3 f1R Be4 f2 Bf3 Re1 Qf7+ Kh8 g7+ Kh7 Bb7 f1N Bc8 Ng6 e7 Nf3 e8B Qe5 Kb5 Qde7 Ka6 Re4 Ba3 c1R Bb4 Ne3 Qg1 d1Q g8R+ Bg7 Rf8 Rb8 a8B Qdd4 Bc6 Rc4 Ba4 Rc2 Bb7 Rd8 Bc8 Rc3 Qb3 Bf6 Bf7 Bg5 Bc4 Bf4 Be2 Rd3 Qd5 c4 Bed1 Rd2 Qe6 Rg2 Re8 Rg5 Qf7+ Qg7 Qg3 Rc5 Bb7 Rb8 Qg1 Rbc8 Qf8 Qge5 Qf6 R8c7 Ra8 Rc8 Qe6 Rg8 Bc8 Rd8 Qf7+
5b2/3NRpNQ/8/nKPq1bNb/1b2R1p1/3k2b1/q1Qp2PQ/rn1N2b1 b - - 0 1 legal: proof: f4 b5 h4 a5 a4 bxa4 f5 c5 f6 g5 Rh2 g4 Rh3 exf6 Rh2 f5 Rh3 f4 Rh1 Ra6 Nh3 Rg6 Ng1 Rg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 d3 d5 Kf2 c4 Be3 c3 Bd2 cxd2 c4 Nh6 c5 Ng8 e3 Qf6 Be2 Ke7 Kf1 Ke8 Bf3 Qd8 Be4 Bd7 Bf5 Bc6 Bc8 Bd7 Ba6 Bc8 Bc4 dxc4 Ke2 Kd7 b4 Ke6 e4 Ke5 b5 Kd4 e5 h5 g6 h4 g7 h3 e6 a3 b6 f3+ Kf1 a2 e7 f2 Ke2 f1B+ Kf2 c3 e8N a4 b7 a3 Nd6 c2 Nc3 c1B Nce4 h2 Ng5 Ne7 g8N Nd5 Nf6 Nc6 b8Q Na5 Nde8 Nc3 Ng7 Qd6 Rb1 a1B N1h3 a2 Rb7 Ba3 Re7 Bb4 Qc2 Be2 Rf1 h1Q Re1 Bf3 R1e5 Qb1 Re1 Bc6 Kf1 Be4 Nf2 Bg6 Qc7 Nd1 Ke2 Rh1 Qb8 Qc6 Qh2 Bac3 Qh7 a1B Qh2 Qa2 Qh7 Rf1 Qh2 Be6 Qh7 Ke5 d4+ Kf4 d5 Bh5 Kd3 Be5 d6 Nc3 d7 Bf5+ Nge4 Bd4 Re2 Rc1 Nd1 Bg1 Re3 Bb2 Kd4 Ra1 Ng5 Nb3+ Kc4 Nb1 Re2 Qd5+ Kb5 Be5 Re4+ Kg3 Nc3 Kf2 Nd1+ Kf1 Qc3 Na5 Qg3 Qdb3 Qh2 Bg3 d8Q Qe6 Qd5 Qd6 Qb3 Qd5 Ne3+ Ke1 Nd7 Ke2 Qb2 Kd3 Nd1 Qd6 Qc1 Qdd5 Qc2+
QN1B4/r2Nr3/2KPbnrn/3p1kN1/1q3p2/q4P1Q/1B1p1p2/B1nB3b b - - 0 1 illegal: No proof kernel
Nr1QR1b1/nkp1r1n1/3n2R1/1p1N1bN1/1Pp5/P1p2K2/3Q1n1b/1R2qR2 b - - 0 1 legal: proof: h4 g5 e4 gxh4 c4 f5 exf5 d5 c5 b6 Bc4 dxc4 b3 Bd7 Ba3 Bc8 Bb4 bxc5 Ba5 Nh6 Bb6 axb6 Qf3 Ng8 Qg4 Ra3 Qd1 Ra8 Ke2 Kd7 g4 Kc6 f4 e5 d4 h5 d5+ Kb7 d6 h3 g5 b5 d7 e4 g6 e3 g7 h4 f6 h2 a3 c3 f7 c4 f5 h3 f6 Qe8 d8R Nh6 g8R Nf5 b4 Bd6 f8Q Rh7 f7 Nc6 Qb3 Ng7 Qc2 Na7 Qc1 Rb8 Kf3 e2 Nd2 Bf5 Nf1 Qe5 Ne3 e1N+ Ke2 Nd3 Nf3 Qg3 Re8 Nc5 Ng5 Qe1+ Kf3 Ne4 Rf1 h1N Rb1 h2 Qd2 Nhf2 Nd5 Be5 Qe7 Nd6 f8N Bf4 Nd7 Bg3 Ne3 Be5 Qd8 h1B+ Ng2 Bh2 Nb6 Ne6 Rg6 Re7 Na8 Ng7 Ne6 Qd1+ Ke3 Qc1 Nf4 Bhe4 Ng5 Qe1+ Ne2 Bc2+ Kf3 Be6 Nf4 Bg8 Nd5 Bd3 Nab6 Bf5 Na8
r2N2k1/2Qp2p1/nnN3b1/rpP2N2/1QRb1qq1/1p3n2/Q5P1/1n1K1N1R b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 f3 h6 Bg5 hxg5 Be2 g4 exf5 Rh5 f4 Rh8 Bf3 gxf3 c4 Kf7 h4 b5 a4 e5 f6 b3 f5 d3 h5 e4 a5 e3 h6 e2 h7 Ba3 a6 Qa5+ Nd2 Qc7 a7 Bd6 Rc1 Bf8 Qc2 Na6 Nf1 f2+ Kd2 e1N Kd1 d2 Nf3 Qb8 Nd4 Ne7 Nc6 Qf4 Qc3 Rg8 h8Q Nd5 c5 Bb7 Qb4 Bd6 Qh2 Nb6 Rc4 Nf3 Qg3 Kf8 f7 Be5 Qh2 Qg4 Qf4 Bd4 Qc7 Re8 a8Q Qf4 Qa7 Ra8 Nb8 Be4 Nc6 Nb8 Qa1 Ra5 Qa2 Na6 Nd8 Ke7 f8N Rh8 Nc6+ Kf7 f6 Kg8 Ne6 Bg6 Ned8 Qg4 Nb7 Qf4 Nd6 Qg4 Ke2 d1N Nf5 Nc3+ Kd3 Ne4 Ke2 Ned2 Kd1 Nb1 Nh2 Kh7 f7 Ra8 f8N+ Kg8 Ne6 f1Q+ Qe1 Qf2 Qb4 Qfg3 Nf1 Q3f4 Ned8
4B1KQ/p1Np4/2n3NN/bn2p3/2n1N1pP/3bqnkn/PQQ1r3/6Bn b - - 0 1 legal: proof: d4 e5 e4 b5 c4 bxc4 b4 f6 Nd2 Nh6 Rb1 Ng8 Rb3 Nh6 Re3 exd4 e5 Ng8 e6 Nc6 Re2 Nb8 Re5 fxe5 g4 Na6 f4 Rb8 f5 Rb5 f6 Ra5 h4 h5 Rh3 Ra3 Rg3 Rf3 Rg2 Rf5 gxf5 Nh6 Rg3 Ng8 Rg4 hxg4 Kf2 g5 Kg3 c5 b5 d3 e7 Kf7 e8N c3 b6 c4 b7 c2 b8Q c3 Qe1 Nc7 Nh3 Ne7 Ba3 c1N Ng7 c2 Bc5 Ba6 Qe3 Rg8 Qb4 Nb3 Qbf4 c1N Qb4 Nd4 Qb2 Ncb3 Nb1 d2 Nf4 d1N Qec1 Na5 Nfe6 Nf3 Be2 Nc4 Nc3 Nb5 Qcc2 Qb6 Ne4 Nf2 Nc7 Nc6 Bd4 Bb4 Be3 Nd3 Bg1 Ba5 Bd1 Nf2 Be2 Kf8 f7 Ke7 f8N Qe3 f6+ Kf7 Ng6 Nh1+ Kg2 g3 Kh3 g2 Kg4 Rc8 Kh5 g4 Bd3 Rf8 Nf5 Rb8 Ne8 Ke6 f7 Rc8 f8Q Rb8 Nh6 Kd5 Bf2 g1N Qh8 Nh3 Bg1 Ke6 Ng8 Kf5 Nc7 Nhg5 Kh6 Nh3+ Kh7 Rb6 N6e7+ Kf4 Nh6 Rb7 Kg8 Rb6 Nd2 Kg3 Bg6 Rb8+ Kh7 Rf8 Be8 Rf6 Ng6 Rd6 Nb1 Rd2 Nc3 Re2 Ne4+ Kg2 Qd3 Ncd2 Nf2 Nd6 Ne6 Kg3 Qdc2 Bd3 Kg8 N2c4 Nc7 Nb5 Ne4+
8/1Nq2brk/1p3n2/RR2Qp1Q/Q7/r1p2n1K/PprnnP1Q/3Nr1R1 b - - 0 1 legal: proof: d4 d5 b4 g6 c4 dxc4 e3 Bg7 d5 Bd4 exd4 a5 Be2 axb4 Bd3 Ra5 Bf1 Ra8 h4 g5 h5 Nd7 Bf4 Nb8 Bg3 Na6 Bh4 gxh4 Ke2 Nb8 Kd2 Nf6 Ke1 Ng8 g4 Be6 g5 Bg4 g6 Be2 g7 Bg4 Bd3 Bc8 Bg6 hxg6 Kf1 c5 Kg2 f5 h6 Kf7 d6 e5 d7 b6 d5 c3 d6 b3 h7 g5 Qe2 Kg6 Qd3 g4 Qg3 h3+ Kh2 c2 Qe3 c1N Qc3 e4 Qb4 b2 Qb3 e3 Qd5 e2 Nd2 e1N Nb3 c4 Ne2 Nc6 Rg1 Qc7 d8R Ne5 d7 Ra3 Na5 Nf6 Nc3 Ne2 g8Q+ Kh6 Qgf7 g3+ Kh1 h2 Nb7 Re8 Rc1 N5f3 Qe5 Nd2 Nd1 Nef3 Kg2 h1R Qh5+ Kg7 Qh2 c3 h8Q+ Kg6 Kh3 g2 Qh5+ Kg7 Re1 g1R Ra1 Rg8 Rf8 Rf1 d8Q Be6 Qdd4 Bf7 Ra8 Rfg1 Ra5 Rd8 Qg5+ Kh7 Qa4 Rg4 Rc1 Rd7 Rg1 Re4 Rg4 Re1 Ra1 Re3 Rb4 Re4 Rbb5 Rg4 Qgf4 Rg7 Qg4 Re7 Ne3 Rc1 Qg5 Rc2 Rg1 Re6 Nd1 Nc1 Qeg3 Re1 Qe5 Ne2 Qh5+
3Q2B1/Qbr5/p2pPP1b/r2q1rBQ/6K1/Bbp4p/k2R1p1R/n1B4n b - - 0 1 illegal: No proof kernel
N4b2/R2p1Rpp/q1Q2Nb1/1Rq1Np1p/3Q1Pr1/1nR3P1/k3Knq1/4n3 b - - 1 2 illegal: No proof kernel
1rN3R1/3nbp2/2K1R1r1/rPpp2r1/kpqP2NN/p2QQ3/6r1/NR5b b - - 0 1 legal: proof: f4 e5 b4 exf4 a4 g5 h4 gxh4 b5 Nc6 b6 Nd4 Rh3 Nb5 Rh2 Ba3 Rh1 Bf8 axb5 c5 c4 Nf6 Ba3 Ng8 Bb4 cxb4 c5 Bg7 Ra4 Bh6 Ra1 Bf8 c6 Qg5 c7 Qf6 e3 Qd4 Bd3 Qf6 Be4 Qd8 Bc6 bxc6 Ke2 h5 Kd3 a5 Ke4 a4 g4 h3 d4 h2 b7 a3 b8Q c5 Kd5 f3 g5 f2 e4 f1R g6 h4 g7 h3 e5 Ra5 e6 Rf5+ Ke4 Nf6+ Ke3 Rg5 g8N Be7 Nf3 Bb7 Re1 h1R c8N h2 Nh6 Rhg1 Qe5 h1R Qd3 R1g2 Nh4 Rhg1 Nd2 d6 Qee4 Nd7 Nb3 Qb6 Rad1 Kd8 Na1 Kc7 Rb1 Qc6 Ng4 Qd5 Kf4 Qc4 Qee3 Be4 Re2 d5 Ree1 Rc2 Re2 Bh1 Ree1 Rcg2 Re2 Bf8 e7 Rg6 e8R Be7 Rg8 Kb7 Nh6 R2g5 Ng4 Rg2 Qed2 Kc7 Re6 Kb7 Nd6+ Kb6 Q2e3 Ra7 Nc8+ Ka5 Qg3 Ka4 Qge3 Nf8 Qf5 Ra5 Ke5 Bf6+ Kd6 Be7+ Kc6 Nd7 Rg7 Re8 Qfd3 Rd8 Rg8 Re8 Na7 Rb8 Nc8
QR1K3b/3pR2R/Np3n2/1Nqn1bq1/1qn2r2/1PNP2N1/1Q5n/r3kqr1 b - - 0 1 illegal: No extended proof kernel
rN2n3/np4Qr/1N2pnqk/1Q4b1/1P4b1/2Q4p/K2bR1bP/bR1RQ1n1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 e4 a5 f5 a4 e5 a3 b3 g6 Bb2 axb2 e6 fxe6 f6 e5 Be2 e4 Bg4 Qd3 Bh3 Qd8 Bf5 gxf5 a4 Kf7 g4 Kg6 d4 c5 Kd2 h5 Kc2 c3 f7 f4 b4 h4 Kb3 c2 d5 c1N+ Ka3 c4 d6 c3 d7 c2 a5 f3 a6 f2 a7 f1B g5 h3 Qd6+ Nf6 Nf3 e3 Qd4 e2 Qc3 e1B Ra2 Bg2 Nbd2 Nc6 Nc4 Qb6 d8R Bg7 f8Q Bd2 Nd4 Ne8 Qf1 Rh7 Qe1 b1N+ Kb2 Qa6 Nb6 Ne2 Kb3 Kh5 g6 c1B Rc2 Qd3 Ka2 Bg4 Rd5+ Be5 g7 e6 g8Q Ng1 Qg7 Qg6 Rd7 Bg5 Re2 Nd2 Rd8 Ne4 Rd5 Rb8 a8Q N4f6 Qa5 Bcd2 Qb5 Na7 Nc6 Ra8 Nb8 Bd4 Qcc5 Ba1 Qc3 Bf4 Rd1 Be3 Qf2 Bd2 Rb1 Nf3 Rhd1 Ng1 Qh8 Kh6 Qe1 Bb2 Qg8 Ba1 Qg7+
N3bB1N/1n2r1n1/1K3p1r/Q5p1/2r1nP1B/bB3QPr/2p1pkNq/4n1N1 b - - 0 1 legal: proof: c4 b5 e4 bxc4 b4 d5 a4 dxe4 b5 a6 Ra2 a5 Rc2 h5 Rb2 h4 Rb4 axb4 g3 h3 Ne2 Qd6 Rg1 Qd4 Rg2 hxg2 h4 Qd8 f4 Kd7 Kf2 Kd6 Ke3 Kc5 a5 g1R h5 e5 h6 c3 a6 c2 a7 f6 d3 b3 b6 b2 b7 Na6 b8Q Ne7 h7 Nf5+ Kf2 e3+ Kf3 e4+ Kg4 Rh1 Bh3 Bd7 Nd2 b1N Nc4 Be8 Ng1 Kd4 Qb6+ c5 Qa5 e2 Ne3 e1N Qf3 c4 Ba3 c1R Ng2 e3 Be7 Rc8 a8N c3 Ba3 e2 Bd6 Rg8 h8N Nd2 Bb4 Ne4 Bc5+ Kd5 d4 c2 Ba3+ Kc4 d5 Kd4 d6 Rc4 d7 Nac5 Bb4 Qc8 d8B Nb7 Bde7 g6 Ba3 Qc7 Bed6 Qh7 Bdb4 Ng7 Bd6 Be7 Bab4 Bd8 Bf8 Bb6 Bbd6 Bc5 Bde7 Ba3 Bb4 Nh5 Bh6 Rg7 Bf8 Re7 Bg5 Ng7 Bh4 Rb1 Bg5 Rb5 Bh4 Rh5 Qb3 Nd3 Kf3 Rh6 Be6 Rh3 Bf7 Nc3 Be6 Ne1+ Kf2 Kd3 Bd5 Kd2 Be6 Kd1 Ke3 Ne4 Qbc3 Rc6 Kd4 Rc4+ Kd5 g5 Bd7 Qf5+ Qe5 Rh2 Nc7 Nd3 Na8 Qh3 Qec3 Rh1 Ba4 Rh2 Ne1 Qg2 Bb3 Rh3 Qcb4 Qh2 Qc3 Ndf2 Qf3 Nd3 Qb6 Kd2 Ng2 Ne1 Qc5 Bg6 Kc6 Be8+ Kb6 Nd3 Ne3 Ke1 Qh1 Kf2 Qa5 Nec5 Qe4 Ne1 Qd3 Ne4 Ng2 Bb5 Qdc3 Be8 Qf3+
3n3K/r1p2NNB/N2p2Qp/pb3qb1/qB5P/Pr3Bn1/1rNr1k1p/7Q b - - 0 1 legal: proof: e4 b5 b4 g5 h4 e5 c4 bxc4 d4 g4 Rh3 gxh3 g4 f6 Nd2 exd4 e5 f5 Rb1 Nh6 Rb3 Ng8 Re3 Kf7 Re2 Ke8 Re4 fxe4 Ke2 Ke7 f4 Ke6 a3 Kd5 f5 a5 g5 c3 b5 h2 f6 e3 Kd3 d6 f7 h6 g6 c2 g7 e2 b6 e1R e6 Qe7 b7 Qf6 e7 Nc6 e8Q Bd7 b8N Be7 f8N Nd8 Na6 Re2 Ne6 Qf5+ Ne4 Ra7 Bg2 Bg5 Nf3 Nf6 g8B Nh5 Qh1 Ng3 Bd2 c1Q Bb4 Rb2 Ne1 Qc6 Nc2 Qa4 Bh7 Ke5 Kc4 d3 Ng7+ Kf4 Qg6 d2 Bf3 Re8 Kd4 d1R+ Kc4 Rdb1 Kd3 Bb5+ Kd4 Be7 Ng5 Rb3 Nf7 Bg5 Bg2 Re2 Bf3 Qh3 Kd5 R1b2 Na1 Ke3 Nc2+ Kf2 Kd4 Nh5 Kd5 Rd2+ Ke4 Qf1 Kf5 Nc6 Ke6 Qb1 Kf5 Ng3+ Ke6 Be3 Kf6 Nd8 Nf5 Bg5+ Kg7 Qf1 Kh8 Qh3 Ng7 Qe6 Be2 Qf5 Bf3
1BRK1n2/2P4b/3Br1rn/1n1r2B1/b2b3p/2Qqp3/2BBPrk1/3bR2B b - - 0 1 illegal: No possible last move
1B2NrbK/p7/B1p1Br2/BR4nb/k3n3/1B1Rq1p1/3qP2P/2bB1n1n b - - 0 1 illegal: No possible last move, all moves rejected
6N1/1n1pN1R1/1n1p2b1/1N2bBp1/3b2q1/1K1P2NP/2p1qNNk/2Rr1n1r b - - 0 1 legal: proof: g4 h5 a4 hxg4 e3 b5 axb5 Rh3 Qe2 Rh7 Qd3 Rh8 Qd6 exd6 b3 f6 e4 Qe7 e5 Nc6 e6 Nd4 Kd1 Nxc2 Bb2 Qd8 Be5 fxe5 f4 Ke7 b4 Kf6 f5 Kg5 e7 Kh4 e8N g5 f6 a5 f7 c5 b6 e4 b5 e3 b7 a4 b8N e2+ Kc1 e1N Kb2 g3 b6 c4 b7 a3+ Ka2 c3 Nf6 g2 Nh7 Ne3 Nf6 c2 Bd3 Ne7 Bf5 Qe8 Nh3 g1Q Ng8 Qg4 Nc3 Nd3 Nb5 N7d5 Rac1 Nc5 d3 Nf1 Nf2 Bg7 f8N Be5 Ne6 Nb6 Na6 Rh6 b8N Nb7 Ne4 Kh3 Kb3 a2 Ng3 a1B Nac5 Bad4 Nc6 Ra1 Nce4 Rh8 Nce7 Kg2 Re1 Rd1 Nf2 Qeh5 Re3 Qe2 Rf3 Qg4 Rf4 Nd8 Rf3 Bb7 Rf4 Be4 h3 Nb7 Rg1+ Kh2 Rf3 Rh6 Nf4 Rf6 Ng2 Rf8 Rf4 Ra8 Rf3 Raa1 Rf4 Qgf3 Rh4 Qg4 Rh7 Rac1 Rg7 Ra1 Be6 Bg6 Bf5 Rdc1 Na3 Ne3 Nb5 Rf1 Nd1 Re1 Rf1 Rc1 Rf2 Rh1 Rf1 Ra1 Re1 Nf1 Nf2 Qge4 Rb1 Q4g4 Rb2 Re1 Rb1 Rd1 Rc1
K1n4q/n2rr1qR/2rR4/1PPN2k1/2Nq4/1RBq3q/4RN2/1r2Nq2 b - - 0 1 legal: proof: b4 b5 d4 a5 f4 e5 a4 exf4 e3 c5 Bc4 cxd4 Ba2 Ne7 Qd2 Ra7 axb5 Ng8 b6 Ra6 b5 Ra8 Qb4 axb4 g3 g5 Ke2 f5 Bb2 b3 Bc3 bxa2 Kd2 g4 Ke1 f3 Bd2 f2+ Kd1 f4 Bc1 f3 Bb2 Bb7 Ba3 Bd5 Bc1 Bd6 h3 Bf4 gxf4 g3 Nc3 Be6 Nb1 Bg4 hxg4 Ra3 Rh3 Ra4 Rh1 Ra8 Kd2 Ke7 Kd3 Kf6 Kc4 f1R Kd5 h5 c4 d3 f5 h4 e4 d2 g5+ Ke7 f6+ Kf7 e5 Kg6 f7 d1R+ Nd2 g2 f8R f2 c5 h3 b7 h2 e6 d6 e7 Ra6 e8N Nc6 b8R Na7 Bb2 Rc6 Nh3 g1Q Rf3 Rh7 Bc3 Re7 Rb6 Rfe1 Rg3 f1Q Nf2 Kh5 Rc1 a1Q g6 Qd7 g7 Qdh3 Rf3 Kg5 Rc2 Rd7 Ra2 Rb1 Rd3 Ree7 Nf3+ Kf4 Ne1 Kg5 Re2 Qgg4 Rg1 h1Q+ Rf3 Qh1g2 Rh1 Qh8 Rh7 Q4h3 Ba5 Qgg3 Rb3 Qf6 Bc3 Qgf3+ Kc4 d5+ Kb4 d4 Ka5 d3 Ka6 d2 Nd6 d1Q Nc4 Rc8 Rd6 Qdd4 Kb6 Qfd3 Ka6 Nh6 g8N Nf5 Kb6 Qfg7 Nf6 Rcc7 Nd5 Rc8 Rdh6 Nd6 Rhe6 Rcc7 Ka6 Ndc8 Rd6 Rd8 Rd7 Rc6+ Kb7 Rf6 Kb8 Rc6 Rd6 Rdd7 Ka8
rRb4q/pr1Nk1N1/5pb1/1P2N2P/2K1R1Rr/rp4n1/2n2N1p/4R1B1 b - - 0 1 legal: proof: f4 c5 c4 b5 b4 cxb4 a3 d5 cxd5 e5 Ra2 exf4 Rc2 b3 Bb2 b4 Bc1 Be7 Ra2 b2 Ra1 b3 Qc2 Bf8 Qd1 Bb4 axb4 g5 h4 Be6 h5 Nf6 Qc2 Qc7 Qd3 Qd8 Qg3 Ng8 Qh4 Bc8 g4 gxh4 g5 Qc7 g6 Ba6 g7 Qd7 Bg2 Bc8 Be4 Qd8 Bg6 hxg6 d4 g5 Kd2 f6 Kc3 h3 e4 f3 b5 f2 d6 f1R e5 g4 d7+ Kf7 d5 g3 e6+ Ke7 Nf3 h2 Ne5 g2 Be3 g1R Nd2 b1B Ne4 Rf2 Kc4 Rf3 Ra4 Rfg3 Nf2 Rd1 Re1 Nh6 g8R Nf5 Rg4 Qe8 d8N Na6 Nb7 Rh7 Nc5 Qh8 Ncd7 Nb4 Bd4 Nc2 d6+ Ke8 e7 Rh3 Rge4 Rh4 Rg4 Nfe3+ Kc5 Qg7 Nf8 Qh6 Ne4 Nf1 Bg1 Ng3 Nf2 Ne3 Raf4 Bbf5 Re4 Nc2 Kc4 Rg7 Nc6 Kf7 e8N Qh8 d7 Bg6 Ne5+ Ke7 Nh7 Ra1 Nf8 Rf7 Ng7 Ra3 Nd1 Kd6 Nf2 Bb7 d8R+ Rd7 Nfe6 Ke7 Rb8 Bc8 Nc5 Rb7 Ncd7
1R1n4/1pP1Bq1R/3KR3/1kp4n/1B1P3p/pB2r2N/qr2p3/n1RnB3 b - - 0 1 illegal: No proof kernel
2N5/3K1Pb1/BBr2Nk1/7q/1nRN1b1q/q1rqPBB1/b2n2nr/3N2n1 b - - 0 1 legal: proof: a4 b5 b4 c5 h4 e5 d3 g5 e3 gxh4 Qe2 e4 Kd2 exd3 axb5 f5 c4 f4 Ra6 f3 Rd6 fxe2 Rd4 cxd4 g4 Kf7 f4 e1N b6 h5 c5 a5 f5 d5 b5 h3 f6 a4 c6 h4 b7 h2 c7 a3 g5 a2 b6 a1B Bb2 h3 Ne2 Qd6 Bc3 Ra6 Rg1 h1Q Ba5 h2 Rg2 Be6 c8N Qa3 Bc3 Bh6 Na7 Nc6 b8N Kg6 b7 Nb4 f7 Nf6 Rf2 Ne4+ Kd1 d2 Nc8 Rc6 Nd7 Ng2 b8B Re8 Rf3 Re7 Nf6 Rec7 Bb2 Rc3 Rg3 R7c6 Rg4 Bg7 Bg3 Bh6 Nc1 Bg7 Ke2 d1N Kf3 d3 Be2 d4 Nb3 d2 Ba6 d3 Nd4 Ndf2 Rf4 Bc4 Rh4 Nh3 Kg4 Rb3 Nc3 Ng1 Nd1 Rc3 Be5 Ba2 Bg3 Ne1 Kf4 Ng2+ Ke5 Bh6 Nf2 d1Q Rg4 Qc1 Nd1 d2 Rh4 Qb1 Rf4 R6c4 Ke6 Rc6+ Kd7 Qd3 Rg4 Kg7 g6 Bf4 Nf2 Kh6 g7 d1Q g8B Nd2 Bh7 Qf3 Rh4+ Qh5 Bf5 Kg7 Bg4 Kg6 Nd1 Ne2 Kd8 Qe1 Bf3 h1R Ke7 Rh2 Kd7 Ng1 Bc1 Nb3 Bd2 Qf2 Be1 Nd2 Rg4+ Bg5 Bc7 Qfh4 Bb6 Bb2 Re4 Bf4 Bg3 Rc2 Nh7 Bd6 Ne6 Bg7 Nf6 R2c3 Rc4 Bf4+ Nd4
1nR2R2/4B3/1nBR4/4qn2/Bp2r1n1/r1nBq1bP/bK2Pr1Q/4Rqk1 b - - 0 1 illegal: No possible last move
q1rB3B/1rR1RK1b/n3PR1p/N1p3q1/B1pr1k2/1nP5/8/rrbRB3 b - - 0 1 legal: proof: b4 b5 a4 e5 h4 a5 f4 exf4 c3 d5 Na3 g5 Nc4 gxh4 Qb3 dxc4 axb5 Bf5 b6 Bd7 b5 Bc8 Qb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 f3 d4 h3 b7 f2 g5 h6 d5 h2 b6 b3 g6 b2 g7 b1R Nf3 f6 Ne5 Na6 b8R Nc7 b7 Na6 Bd2 Ra7 Be1 Be7 Bg2 f1R Nc6 Rf2 e3 Rd2 Na5 f5+ Kf4 Bf6 e4 Ne7 g8R Nc6 Rg6 Rd4 Ra8 Be6 Rc8 Bg8 Rc7 Bh7 b8B Rab7 Ra2 Qe7 Re2 Rc8 Re3 Qd8 Bf3 Qe7 Bd1 Qg7 Rhg1 h1Q Ba4 Qg8 R1g2 Qh5 Rd2 Qh8 Rd1 Qg5+ Kf3 Ke5 d6 f4 d7 Qg8 d8B Be7 Nb3 Na5 Re2 Qf6 Kg4 f3 Kh5 Kf4 e5 f2 Re3 f1R Re2 Nc6 Na5 Qgf8 e6 Q6g7 Ra2 Bg5 Re7+ Qe5 Bd6 Qg8 Rc7 Qe8 B6e7 Q8h8 Bf6 Qg8 Re7 Qb8 Rc7 Qa8 Bh8 Qg7 Rg2 Qf6 Rgg7 Rg1 Rge7 Qf5 Nb3 Na5 Bf2 Ke4 Rc1 Rb2 Bh4 Rgd1 Be1 Ra2 Rb1 Ra1 Rg1 Be3+ Rg5 Kf4 Rc1 R1d2 Rd1 Qf6 Rg8 Rb2 Rg1 Rbb1 Rg3 Bg8 Rgg7 Qh4+ Kg6 Bh7+ Kf7 Bc1 Rg8 Qg5 Rg6 Re4 Nd4 Nb3 Nc6 Rd4 Na5 Ra2 Bb5 Ra3 Ba4 Raa1 Rf6+
2r2qq1/Rb4N1/RRnPN3/2p1BqqN/1p1bR3/1KN5/1P2p1k1/r2nb3 b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 Qb3 gxh4 Qa4+ Qd7 Qd1 Qd8 a3 a5 Qb3 a4 Qa2 Kf7 Bc4 Ke8 Bb3 axb3 Kf1 bxa2 Ke2 Bd7 Ke1 Bc8 Kd1 Kd7 Kc2 Kd6 d4 e5 f4 h5 g4 c5 a4 b5 a5 e3 f5 b4 g5 e2 g6 e1B g7 h3 a6 e4 a7 h2 f6 e3 f7 e2 Bh6 h4 Kb3 h3 Be3 Nf6 g8R Bb7 Nf3 Nc6 Nfd2 Ne4 Nc3 Bg7 f8N Qg5 Ne6 Nf2 Rb8 Nd1 Nf1 Rc8 Ng3 Be5 Rf1 h1Q Rf4 h2 Re4 Qf1 Nh5 h1Q Neg7 Qf8 Bf4 Qf1 Bh2 Q1f5 Bf4 Kc7 d6+ Kb6 d5 Bd4 d7 Qg8 Rb1 a1Q d8N Qgf8 d6 Qa2+ Kc2 Qag8 Ra1 Qe5 Nde6 Qef5 Nb1 Kb5 Ra6 Kc4 Be5 Kd5 Nc3+ Kc4 Kb1 Kd3 Ka2 Kd2 Kb3 Kd3 Rf4 Ke3 Re4+ Kf3 Ra5 Ba6 Rb6 Bb7 Raa6 Kg2 Rb5 Re8 Rbb6 Rac8 a8R Red8 R8a7 Ra8 Ka4 Rdc8 Kb3 Qgf4 Ra1 Q4g5 R7a4 Ra5 R4a2 Rb5 Ra7 Ra5 Kc4 Rb5 R1a6 Ra5 Kb3 Ra3+ Kc2 Ra1 Kb3
7b/1BB1nK2/1PrR2n1/Pn1Q4/p4B2/q2nB1bR/pR1Rpr2/1k2qb2 b - - 0 1 illegal: No proof kernel
Nnr1BN2/5p1b/R2bPp2/3bkNqq/1qpB4/8/2Kn1PB1/1Nb2rB1 b - - 0 1 legal: proof: c4 a5 h4 d5 b4 dxc4 a4 g5 b5 gxh4 Qb3 b6 Qb2 Nc6 Qf6 exf6 Ra2 Nb8 Rb2 Bg4 Rb4 axb4 a5 Bf5 axb6 Bc8 Kd1 Ke7 e4 Kd6 g4 c5 d4 h5 e5+ Ke6 b7 h3 b6 b3 d5+ Kd7 g5 c3 g6 c4 d6 Ke6 g7 b2 d7 h4 Bg2 h2 Be3 h3 Bd4 Ra1 Nf3 Bd6 Kc2 Nh6 g8B Ng4 Bh7 Qg8 Nh4 Qg5 Bhe4 Re8 Rc1 h1Q Nf5 Nh2 Bc6 Nf1 d8B h2 Bc7 Rg8 Be8 Nd2 Rd1 Qe1 Rc1 h1Q Rd1 Nd7 b8N Qhh5 Na6 Nb8 b7 Bd7 Rc1 Bc6 Rd1 Bd5 Rc1 Nc6 b8N Rf8 Nd7 Nb8 Nb6 Rg8 Na8 Rh8 Bb5 Rc8 Be8 Bf3 Rd1 Kd5 e6 Ke4 Ba7 Ke5 Nc5 Bd5 Nd7+ Kf4 Nf8 Ke5 Na3 b1B+ Kc1 c2 Bd4+ Kf4 Kb2 c1B+ Kc3 Bbe4 Nb1 Ba3 Rc1 Bd3 Rc2 Bc1 Ra2 Bc2 Ra6 Bce4 Ng3 Bh7 Nf5 Qed1 Bd8 Qa4 Bc7 Qb4+ Kc2 Bb2 Na3 Rf1 Nb1 Bc1 Bcb6 Bf3 Be5+ Ke4 Bh2 Kd5 Bg1 Ke5 Bc5 Bd5 Bd4+
1Nkqr3/4P1q1/4N2b/rpn1b1N1/1Bq4p/Pp1BK1pB/4B2n/3NRb2 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 dxc4 h5 e5 fxe5 g6 Qc2 g5 g4 h6 Qe4 Bc5 Qf4 Bd7 Qg3 Bd6 Qh4 gxh4 g5 Bc8 g6 Bf8 a3 Qd4 Rh3 Rh7 Rg3 Qd8 Rg5 hxg5 Bb2 Ra5 Nf3 Ke7 Bg2 Bh3 Nc3 Ra6 Kf2 Qe8 Rh1 Ra7 Bc1 Bc8 Ke1 Rh8 Bf1 Ra8 Nb1 Qd8 Ng1 Ke8 Kf2 Kd7 d4 b5 e4 f5 d5 c5 d6 f4 g7 b3 h6 c3 h7 c4 Be2 f3 Ke3 g4 Bd2 c2 Nh3 c1Q Re1 f2 Nc3 f1Q Nd1 c3 Nf4 g3 Ne6 Nh6 g8B c2 Bf7 Bg7 Bg6 Qb1 Bb4 Rg8 h8N Qb2 Nf7 Ra5 Nfg5 Na6 Bf5 Rh8 Bh3 Re8 Bd3 Bb7 Be2 Kc8 d7+ Kb8 Bd3 Nc5 Be2 Bd5 Bd3 Bc4 Be2 Qb6 d8N Kc8 Nc6 Qd8 Nb8 Qf7 Bd3 Qc3 Nd4+ Qfd7 e6 Be5 e7 Qg4 Nde6 Qa1 Be2 Bd3 Bf3 Bf1 Be2 Qc3+ Bd3 Qc4 Be2 Qh5 Bd3 Qg6 Be2 Qg7 Bd3 Rh8 e8B Rf8 Bh5 Re8 Bhe2 Ng4+ Kd2 Nh2 Ke3 Bd6 e5 c1B+ Bd2 Bb2 Bb4 Bf8 Nh7 Qgd7 Nhg5 Bh6 Nc7 Ba1 e6 Qg7 e7+ Ne6 Nd7 Nc5 Ne6 Be5 Nb8
N1R1n3/Rr2pqq1/1NB1r3/kb2Ppp1/1rR5/4nPNq/p1pbK2N/6R1 b - - 0 1 illegal: No possible last move
n2n1R1N/2N5/6B1/2p4K/Rppq3p/1qPbb1bp/rP3R1N/kN2Rr1b b - - 0 1 illegal: No proof kernel
r3R3/k1n1B3/q3r2r/4b3/Pr1Q3Q/p2n1b1K/2BPn1r1/1QqQQ2B b - - 0 1 legal: proof: c4 f5 b4 a5 e4 g5 exf5 d5 cxd5 Qd6 h4 gxh4 b5 Qd7 a3 Qd8 a4 Nc6 Na3 Nb8 Rb1 Nd7 Rb2 Nb8 Rb4 axb4 Nf3 bxa3 Nd4 b6 Nb3 Nf6 Nc5 bxc5 Bd3 Ng8 Be2 Bd7 Bf1 Bc8 f4 Kd7 Kf2 e5 g4 h5 Kg2 h3+ Kg3 h4+ Kh2 e4 d6 e3 b6 Kc6 g5 Kb7 d7 e2 f6 e1R f7 c4 f5 c5 g6 c3 g7 c4 f6 c2 Be2 c3 Bb2 c1N Bf1 c2 Qf3+ Nc6 Qe2 Nge7 g8B Ne5 Qe3 Bg7 f8Q Nd5 f7 Ne2 Bd4 c1Q Qe7 Nd3 f8Q Nc7 Bb3 Rh6 Bc5 Be5+ Qg3 Kb8 Bc2 Bb7 Bg2 Qc8 d8Q Bf3 b7 Rg1 Qeg7 Re6 Be7 Ka7 b8Q+ Ka6 Qb5+ Ka7 Qff4 Qb7 Qe1 Qa6 Bf1 Rgg6 Qb1 Rg4 Rg1 Rg3 Qfg4 Rg2+ Kh1 h2 Qh5 Rg4+ Bg2 Rb4 Qgh6 Bb7 Bf3 Bc6 Kg2 h1R Rf1 Rg1+ Kh3 Rg2 Be4 Bd5 Rf8 Bb7 Re8 Bd5 Bh7 Bf3 Qd4+ Qb6 Q5g6 Rg3+ Kh2 h3 Qge4 Rg8+ Qg3 Bg4 Qh1 Rg5 Qd1 Rg7 Qc3 Qa6 Be4 Bh5 Bg2 Bf3 Qhf4 Rgg6 Qge1 Rh6 Kh1 h2 Qfh4 Bg4 Bf3 Bh5 Kg2 h1R Bd5 Rg1+ Kh3 Rgg6 Bg2 Bf3 Bh1 Rg2 Qd4+
5QK1/rQq2rQn/b2Q2p1/1b1n2k1/4r3/P1Q2P1p/rN3R1N/N3qn2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e3 Qd7 d6 Qd8 d4 f5 a3 g6 d5 Bg7 Ra2 Bd4 exd4 Bd7 Qf3 Be6 Qd1 Bc8 h4 Kf7 h5 Be6 Bg5 Bc8 Bh4 g5 Re2 Ke8 Re4 fxe4 g4 gxh4 g5 Nd7 g6 Ra5 g7 Ra7 Bh3 Nb8 Bf5 Ra8 Bg6+ hxg6 Kd2 Kf7 Ke3 Kf6 Kf4 e5+ Ke3 c5 h6 b5 h7 b3 d7 b2 d6 h3 f3 b4 d5 c4 Rh2 b3 Ne2 c3 Qg1 c2 Nbc3 b1B Nd1 c1R Nb2 Bd3 Nd4 Nc6 Rf2 Ra1 Qb1 Kg5 Nc2 Qc7 d8N Nf6 g8Q Bb5 d7 Ne7 d6 Ra7 Nc6 Ra2 d8Q Bca6 Qg7 Rf8 h8Q Rf7 d7 Nh7 Qdf8 Nd5+ Kd2 Nb6 Kc3 e3 Na1 e4 Kd4 e2 Ne5 e1R Ng4 e3 Nh2 e2 Ke4 Nd5 d8Q+ Ne7 Qd6 Nd5 Nc4 b2 Ke5 Qc6 Ke6 Qc7 Qe4 b1N Nb2 Nd2 Qeb4 Nf1 Qbc3 Rf5 Qgd7 Rf4 Qhg7 Re4+ Kf7 Rb1 Kg8 e1Q Nd1 Rbb4 Qdc8 Rf4 Qb8 Rf7 Qb7 Re4 Nb2
3n1B2/qBK2k1B/5rR1/2P1Q1nr/4rQnp/7p/2rP2qQ/2Q1Qq1b b - - 0 1 legal: proof: f4 d5 c4 e5 b4 exf4 a4 c5 a5 b6 b5 Be6 Na3 Bc8 Rb1 Nh6 axb6 Ng8 Rb4 cxb4 c5 Bd6 Nb1 Be7 Na3 Bf8 g4 g5 h4 Bf5 h5 Nh6 Nf3 Qe7 Nc4 dxc4 Nh4 gxh4 g5 Be6 g6 Bd7 g7 Ng4 h6 Bc8 g8B Bg7 hxg7 Nf6 Rh3 Qd7 Rh1 Qd8 Kf2 h5 Kf3 a5 e4 h3 b7 c3 e5 a4 b6 a3 e6 a2 e7 a1Q Qa4+ Nc6 b8Q c2 b7 h4 Qa6 b3 Qa4 b2 Qb4 b1N Qa4 Ng4 Ke4 f5+ Kf3 Rh5 Be2 Qd5+ Qe4 Qa7 Bb2 c1R Bh7 Nd8 Rg1 Rc2 Ba6 Nc3 Qe5 Kf7 b8Q Bb7 Qbd6 Rb8 Rg2 Ba8 Bb7 Qc6 Qc7 Qg6 Qe1 Ne4 Qc1 Rc8 Qcd6 Rc6 Qdd4 Re6 Qdg1 Rf6 Qh2 Qg5 Ke2 f3+ Kd3 f2 Kd4 f1Q Kd5 f4 Rg1 Ne6 Kc6 Nd8+ Kc7 f3 Qef4 f2 Be5 Qg2 Bd6 f1R Qe1 Qf5 Qc1 Re6 g8Q+ Kf6 e8Q Ng5 Qe1 Re4 Qc4 Rf2 Qcf1 Rf3 Qee5+ Kf7 Bf8 Qf6 Qfg3 Qfa6 Qc1 Rf6 Qff4 Qaf1 Qge1 Qge2 Qff5 Nf2 Bh6 Ra4 Qd4 Nf3 Rg6 Ng5 Qde5 Ng4 Qff4 Rac4 Bf8 Qef3 Kc8 Qg3 Ba6 Bh1 Bb7 Re4 Kd7 Qgg2 Kc7
Qr2nB2/1Nbrp2p/1Bn1b2q/4q1bP/1nQ1P3/Q3b2Q/5n1k/Q2BK3 b - - 1 2 legal: proof: c4 g5 b4 c5 a4 f5 e4 b5 g4 f4 h4 Qa5 d3 Qb6 Rh3 Qd8 Re3 fxe3 f4 Qa5 f5 Qc7 Nc3 Qd8 d4 cxd4 axb5 dxc3 Ra2 Bb7 Rf2 Bc8 Rf4 gxf4 f6 Kf7 g5 Ke6 g6 Ke5 g7 a5 h5 d5 f7 e2 c5 d4 b6 c2 c6 f3 b7 a4 c7 d3 b5 a3 b6 f2+ Kd2 Kf4 Nf3 Kg3 Bg2 f1Q Ng1 e1B+ Ke3 a2 Bh1 a1N Bb2 d2 Bf3 c1B Ne2+ Kh2 Bd4 Qd5 Nc3 Bg3 Na4 Qa6 Nc5 Nf6 g8Q Ra7 Qe1 Bf4+ Kf2 B8h6 Qg4 Bd7 c8Q Bhg5 Qc7 Rd8 f8B Nc2 Qe3 Bf5 Qa3 Ne8 Be2 d1N+ Kf1 Na1 Ke1 Nf2 Bd1 Be3 Qf3 Ra8 Qe5 Rd7 Qh3+ Kg1 Qh8 Bc7 Qg8 Qe5 Qc4 Nc6 b8Q Nd8 b7 Qh6 Qc8 Nc6 b8Q Be6 Qb1 Nc2+ Ke2 Bef4 Nb7 N2b4 Bb6 Be3 Qd8 Rc8 Ke1 Ra8 Qba1 Rc8 Qf5 Ra8 Qb8 Kh2 Qba7 Rc8 Qa8 Rb8 Qh3+
BQN2K2/P2k1bQ1/1pn3pn/r2n3r/1P1n4/1b1qQ1Q1/1Npb4/2nN2Q1 b - - 0 1 legal: proof: c4 a5 b4 g5 f4 d5 cxd5 e5 a3 exf4 Ra2 a4 Rb2 Bc5 Rb3 axb3 a4 Bf8 g4 Qd7 h4 Qd6 Rh3 Ra6 Rg3 Qd7 Qc2 Ra8 Kd1 Qe7 Ba3 Qe4 Kc1 Qg2 Qd1 Qe4 Bb2 f3 Be5 f2 Bf4 gxf4 g5 Qe3 g6 Qe7 g7 Qd8 Rg6 hxg6 Kb2 c5 Kc3 f5 Kc4 f3 e4 b6 d4 f4 e5 b2 h5 Qf6 a5 Qd8 e6 Nf6 g8N Qd6 a6 Qc7 h6 Qd8 e7 Be6 h7 Ng4 Nd2 b1B Nh3 Nc6 Bg2 f1N Nf2 Nfh2 Qg1 Nh6 Nd1 f2 Be4 Kd7 e8Q+ Kc7 Kb5 f1N Nc4 f3 Ne7 f2 Ncb2 c4 Nc8 c3 Bh1 Bg8 Qe3 c2 d6+ Kd7 d5 Ng3 Bf3 f1N a7 Bf7 Be4 Ne2 Qeg3 Ba2 Bh1 Rg8 h8Q Bb3 Qg7 Rh8 Be4 Nc1 Q3e3 Qh4 Bh1 Qh3 Bf3 Kd8 d7 Kc7 Bh1 Nf3 Bg2 Be7 Bh1 Bg5 d8Q+ Kb7 Qdf6 Kc7 d6+ Kd7 Qfe5 Re8 Qeg3 Re5+ Ka6 Rf5 Kb7 Nfd4 Bg2 Ra5 Be4 Ke6 Kc7 Qf5 d7 Qd5 Qee1 Bd2 d8Q Ne3 Qef2 Qb5 Qff4 Qd3 Qff3 Nef5 Qfe3 Nfe7 Bg2+ Kf5 Kd6 Nd5 Bf3 Rb8 Qc7 Rb7 Qb8 Re7 Qf8 Re5 Bg2 Kf6 Kd7 Rh5 Qg7+ Kf5 Bf3 Be6+ Ke8 Bg8 Be4+ Ke6 Kf8 Bf7 Bh1+ Kd7 Qbe5 Nde7 Q5f4 Nb8 Bb7 Nbc6 Qb8 Nd5 Ba8
2n1q1Q1/2rpPb2/1bp1QRp1/1Q6/b1RPpK2/nkr3N1/R1R3R1/4b2b b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 a6 b4 bxc4 b5 a5 Ba3 Nh6 Bd6 Ng8 Bb4 axb4 d4 e5 e3 f5 Bd3 e4 Nd2 exd3 e4 Nh6 e5 Ng8 Ne4 fxe4 Kd2 Ke7 Ke3 Ke6 a4 Kd5 f4 d2 h4 b3 b6 c3 e6 Kc4 f5 c2 b7 c1B h6 g6 h7 c6 f6 b2 a5 b1B a6 Qc7 h5 Ba2 f7 Qd8 a7 Na6 b8Q Nc7 h6 Ne7 Kf4 Qe8 Rh2 Ba6 Rg2 Bb5 Qg4 Ba4 Ne2 Nb5 Ng3 Na3 Qb5+ Kc3 Qh3 Rc8 a8R Rc7 Ra6 B2b3 Ra2 Nc8 Qg4 Be7 f8R Bc5 e7 Bb6 Rf6 Bf7 Qe6 Bb2 Ra7 d1B Ra8 Rf8 h8Q Bf3 h7 Ba1 Qg8 Bb2 Rg1 Bh1 h8R Kc2 Rh2+ Kc3 Qbd5 Kb4 Rb8 Bc3 Rhc2 Be1 Rc4+ Kb3 Rgg2 Ba5 Ra8 Bb4 Rac2 Be1 Qg7 Rh8 Qg8 Rh3 Ne2 Rc3 Ng3 Nb1 Ra6 Bb5 Raa2 Na3 Qde5 Ba4 Qb5+
Q4r2/prp5/Q1P4q/5NQ1/ppb1BQ2/rQ3brR/kP1nQ3/2nK1b2 b - - 0 2 illegal: No proof kernel
4n1Qr/bN2q3/1RQQp1P1/Nr1q2bk/pnQ1r3/Qr2P3/8/2b3KQ b - - 0 1 legal: proof: a4 c5 b4 f5 a5 b6 axb6 f4 d4 cxd4 Ra3 Ba6 Rd3 Bb7 e3 f3 Rd2 Ba6 Re2 fxe2 Kd2 Bc8 g4 a5 b5 Ba6 bxa6 g5 f4 Qc8 Bh3 Qc7 Ba3 Qd8 f5 h6 Bd6 h5 Bf4 gxf4 g5 Bh6 Bg4 hxg4 Nh3 Bg7 Ng1 Bf8 Ke1 Kf7 Kf2 e1B+ Kf1 d5 c4 e6 h4 f3 c5 d3 c6 f2 b7 d2 f6 Kg6 f7 g3 a7 d4 c7 g2+ Ke2 f1R c8Q a4 Nf3 g1B Ne5+ Kh5 g6 Bh6 f8Q Bh2 Nc4 Na6 b8Q Nb4 Na5 Rf5 Nc3 Rb5 Qbd6 Rab8 a8Q Qe7 Qc4 Nf6 Ne4 Bg5 Nc5 Ne8 Qac6 d3+ Kf3 Be5 Ncb7 Bd4 Qdc1 d1R Kg2 d2 Qa3 Rc1 Qg8 d1Q Kg1 Ba7 Rh2 Rc3 Rb2 Qd5 Rb1 Bd2 Rb3 Kh6 h5 Bc1 Rb2 Rb3 Rb1 Bf6 Rb2 Kg5 h6 Kh5 h7 Bg5 Qg7 Rf8 Qg8 Rf4 Rb1 Re4 h8Q+ Kg4 Qh1 Ra8 Kh2 Kh5 Kg1+ Rh4 Qce4 Ng7 Rb2 Rc3 Rc2 Rbc5 Qa1 Na6 Qf7 Rh8 Qc4 Ne8 Qa3 Rd3 Qg2 Re4 Rb2 Rc3 Rb4 Rb3 Rb6 Rcb5 Qg8 Nb4 Qh1+
R4qb1/q1RQprp1/1n2kNbQ/R1Kn2R1/R6p/2p5/q2bP2P/R3r3 b - - 1 2 illegal: No proof kernel forced: wxDB
BQ6/4rBqP/3qb3/2N1n1R1/2Nkq1n1/2P2RPn/1b1BqnK1/5n1n b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 b4 a5 f3 a4 f4 Ra5 bxa5 exf4 g3 h5 e3 g5 Bd2 g4 Qf3 gxf3 Bc1 h4 Ra3 h3 Rd3 Nf6 Rd2 Ng8 Rg2 hxg2 Kf2 Ke7 h4 Kd6 b6 Kd5 h5 f5 b7 d3 h6 d2 a6 d1N+ Ke1 a3 a7 f2+ Ke2 f3+ Kd2 f4 a8R a2 h7 a1Q e4+ Kd4 e5 d5 e6 Nh6 e7 Ng4 e8B Qd6 Ra5 Bg7 Bd3 f1N+ Ke1 f2+ Ke2 Nc6 Kf3 Nce5+ Ke2 Be6 Bd7 Re8 b8Q Re7 Rb5 Ng6 Rb2 Kc5 Na3 Nd2 Be4 d4 Bf3 Ne4 Nh3 g1N+ Kf1 d3 Bg2 d2 Bf3 Kd5 Ng5 Nh3 Nc4 Qa4 Ra2 Bb2 Kg2 Qac6 Ne3+ Kd4 Ra5 Qb7 Rf5 N6e5 Rf1 Qa8 Qb5 Qf8 Kh1 Qg7 Bg2 f3 Qb8 Nf4 Be8 Nh3 Rg1 f1Q Bf7 f2 Nc4 Qe1 Rf1 Qe3 Bf3 Qe1 Kg2 Qe3 Re1 Qf4 Re3 f1N Rc3 Nef2 Bb7 Nh1 Ba8 Qd5+ Ne4 Qd6 Rg5 Ndf2 Nc5 d1Q Rf3 Qe2 Bd2 Qfe4 c3+
3n1r2/3P2Br/6N1/1N2n1q1/1K2bP1Q/rP2q1q1/1n1p2rR/RR2B1kr b - - 0 1 legal: proof: e4 c5 h4 g5 d4 gxh4 a4 cxd4 e5 b5 axb5 a5 e6 a4 Bc4 a3 Bf1 fxe6 Ra2 e5 Ra1 e4 c3 d3 Nd2 a2 Rb1 a1Q Be2 Qa2 Ra1 Qb1 Bg4 Ra3 Be6 Ra8 Bb3 Nf6 Bg8 Nxg8 Rh3 d5 Rh1 d4 Nf1 Bg7 Kd2 Bf6 Qa4 Be5 Kd1 d2 Qb3 Qa2 Kc2 Bf6 Qa4 Qb1+ Kb3 d3 Kb4 Kd7 Qd1 Bd4 cxd4 Ke8 Kb3 Qa2+ Kc3 Qb1 f4 Kd7 g4 Ke6 g5 Kd5 b6 e5 b3 h5 b7 h3 g6 h2 g7 e3 Ba3 Ke4 d5 h4 d6 h3 d7 e2 Bf8 e1R Ne3 Nc6 b8B Re2 Qc1 d1N+ Kc4 d2 Nc2 Qg5 Ne3 Ra3 Bc5 Bb7 Nc2 Nge7 g8R Nd8 Bbd6 Ng6 Bb4 Nb2+ Kb5 Rg2 Ne2 Kf3 Be7 Kf2 Ne1 Be4 Bc3 Qd3+ Kb4 Qe3 Nd4 Rh7 Rg1 h1R Rh8 h2 Nb5 Rf7 Qd1 Rf8 Qh5 Qeg3 Nc2 Qe3 Rgb1 Qeg3 Ne1 Kg1 Bc5+ Rf2 B3d4 Bf3 Be3 e4 Bed4 e3 Bd6 e2 Nd3+ e1Q Bg7 Be4 Ne5 Rg2 Nc6 Ne5 Ne7 Kf1 Qg4 Rhg1 Ng6 Kf2 Rh3 Qe2 Bb8 Rc1 Ba7+ Kf1 Bf2 Qee3 Be1 Rc6 Rh5 h1R Nh4 Rh6 Ng6 Kg1 Rh2 Rh7 Qh4
1R2qn2/p7/Np3Pk1/P4R2/5BqP/nb1q3r/R1q1N2B/K1b2qQn b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 b4 fxg4 c5 b6 c6 Na6 b5 Rb8 Bd3 Rb7 cxb7 c5 Bc2 c4 Bb3 cxb3 Ke2 h5 Kf1 h4 Ke1 h3 Nxh3 Be6 Ng1 Bd7 Ke2 Bxb5+ Ke1 Bd7 Qf3 Be6 Qd1 Bc8 b8B Kf7 a4 e5 f4 g5 d4 e3 h3 e2 Kd2 e1N Kc3 e4 Kb2 e3 f5 g3 a5 e2 d5 g2 f6 g4 d6 g3 d7 Bh6 Bd6 Nc7 Be7 Nd3+ Kc3 e1Q+ Bd2 b2 Qc1 Nb5+ Kc2 Na3+ Kb3 Nf2 Nc3 b1Q+ Qb2 Qc2+ Ka2 Be3 Bd6 Ne7 Nd5 Ng6 Bc1 Nf8 Nc7 Kg6 Na6 Qec3 Be5 Qe8 d8R Q3d3 Ne2 g1Q Bb8 g2 Bh2 Bd7 Rb8 Ba4 Bd2 Qgc1 Rf1 Nh1 Rf5 Bg5 Be3 g1Q Bd2 Qg4 Be3 Qcc8 Qd4 Qf1 Kb2 Rh7 Ra2 Bb3 Bc1 Qcc2+ Ka1 Re7 h4 Re3 Qc5 Rh3 Qg1 Qff3 Bb2 Bc1 Bbe5 Qf1 Bef4
5r2/p5p1/P2n4/b1rNp1NB/P2Rq1R1/bBn1nr1P/Q7/1b2K1kN b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 Qd6 b4 Qc5 g4 Qa5 bxa5 hxg4 e4 c5 d4 cxd4 e5 e6 Bf4 exd5 e6 f6 Be5 fxe5 f4 Ke7 a6 Kd6 f5 Kc5 h3 b5 e7 d3 e8B Kd4 f6 Ke3 f7 d4 Nd2 g3 Qb3 g2 Qc4 b4 Qb5 b3 Qb7 b2 Qc7 b1Q+ Qc1 Bf5 Ne4+ d2+ Kd1 Nc6 Bd7 Rc8 Nc5 Kf2 Ne2 g1B Ra2 Nd8 Nc3 Nh6 Bfb5 Ng4 Bc4 Nb7 Bc6 Nd6 Bf3 Qe4 Qa1 Be7 Be6 Rhf8 Nd5 Kf1 Nd3 Rc5 Rh2 Bd8 Re2 Ba5 Rg2 Be3 Nf2 Bg6 Rh2 Kg1 Nh1 Bf5 Ke2+ d1R Rd2 Rf1 Qa2 Rf2+ Ke1 d3 Bd1 Rf3 Bb3 Bg6 Bf5 Bh7 Bg6 Bg5+ Re2 Ne3 Bh5 Bgd8 Rh2 Bb4 Re2 Ba3 Rd1 Ba5+ Red2 Ra8 f8N Bg6 Ne6 Raf8 Rc1 Bh7 Rc4 Bg6 Rb4 Bh7 Rh2 Bf5 Ng5 d2+ Ke2 d1N Ke1 Nc3 Rd2 Qf4 Rbd4 Bb1 Re4 Qf5 Rdd4 Qg6 Rh4 Qe4 Rg4+
2QNK3/N3p1r1/N6R/1r5p/P1rRP1P1/BpkBb1q1/2nb3b/5rq1 b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 g5 d5 f5 d6 fxg4 h3 b6 Ba3 g3 Qd4 g4 Qg7 g2 Qd4 g3 Bc1 cxd6 Qd2 d5 Qd1 d4 f4 d6 f5 Kd7 f6 Ra4 c3 Kc6 f7 Bg4 hxg4 Nd7 Rh5 Ndf6 Rh1 Ne8 fxe8N bxc3 Rh6 Ra7 Rh1 Ra8 a4 Kc5 e4 Kb4 Ke2 h5 Kf3 d3 Kf4 b5 Kf5 d2 Kg6 d5 Kf7 c2 Nf6 d4 Nh7 d3 Na3 Bh6 Nc4 Ra5 Nd6 Qc7 Nf8 Nf6 Ng6 Be3 Ne2 g1B Qe1 g2 Nd4 Rg8 Ne2 Nd5 Ne8 Bh2 Nf8 Qg3 Nc7 Rg7+ Ke8 g1R Qf2 d1R Nc3 d2 Nfe6 Rg2 Bb2 c1B Qf5 Kb3 Rb1 b4 Ba6 Kc2 N3b5 b3 Nd8 Nb4 Na7 Rf2 Bf1 Rb5 Qc8 Rff5 Ba3 Rfc5 Ra1 Re1 Bc4 d1Q Rf1 Kc3 Na6 Nc2 Rf6 Rc7 Be2 Rc4 Rh6 Rg1 Rb1 Qde1 Bf1 Qef2 Be2 Rf1 Ra1 Qfg1 Rb1 Bb2 Rd1 Bbc1 Rd4 Bcd2 Bd3
1R3R2/3R1P1p/1PBn1NbP/B1nq4/n1n4K/N4Qp1/1nnp4/b3r1k1 b - - 0 1 legal: proof: b4 a5 g4 e5 d4 exd4 a4 b5 c4 f5 c5 fxg4 c6 axb4 Bf4 b3 Bd2 Ra7 Bc1 Rb7 cxb7 c5 Kd2 Nc6 b8Q Nge7 Qa7 Ng8 Ke1 Nb8 Qa5 Qg5 axb5 Qd8 Qb4 cxb4 e4 Ke7 h4 Ke6 f4 g5 Kf2 d5 Kg3 b2 f5+ Ke5 f6 b3 h5 d3 h6 Kd4 e5 d2 e6 Ke3 b6 d4 f7 d3 e7 Na6 e8R+ Ne7 Nh3 Qd5 Ra5 Bf5 Rb5 Nc5 Nf2 Bg7 Bh3 Bg6 Nc3 b1N Nfe4 b2 Nf6 Na3 Nd7 b1N Rc8 Re8 Ne4 Nc4 Nf8 Nba3 Qf1 Ba1 Rb1 Nc2 Rb8 Nc8 Bg2 N8d6 Nd7 Re7 Bb2 d1N Bc3 Ndb2 Nef6 d2 Rg1 Re5 Ba5 Re6 Ne5 Re8 Kh2 g3+ Kh3 g4+ Kh4 Re7 Be4 g2 Rc1 Re8 Qd3+ Kf2 Rge1 g1N Qb3 N4a3 Nc4 g3 Re3 Ne2 Rd3 Nc3 Rd4 Qb7 Bc6 N3a4 Qd3 Re1 Qf3+ Kg1 Rd5 Nab5 Na3 Ndc4 Rd7 Nbd6 Rf8 N2e3 Rc3 Nc2 Re3 Qa8 Ree8 Qb7 Rb8 Qa8 Bb5 Qd5 Bc6
1Rq1kr2/1P6/b2NpBP1/1B5q/1Kb3R1/r1Q3bP/2p1pr1b/N1N1q3 b - - 0 1 illegal: No possible last move
2RrN2b/B3Br2/1nr1BrP1/7k/R1qbb2r/1b1PQ2b/2n4P/qNK5 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Qa4 f5 Qb3 f4 e4 h5 Qf3 gxf3 g4 Ke7 g5 Ke8 b4 Ba6 Ra3 Nh6 Re3 Ng8 Re2 Bc8 Rg2 Qd5 Rg3 Qd8 Rg4 hxg4 Kd1 c5 e5 f5 e6 a5 b6 g3 b7 f2 e7 Kf7 e8R Kg6 d3 g2 b5 f3 b6 a4 Kc2 c3 Bd2 c4 Bc1 a3 Re2 a2 Bd2 a1Q Be1 f4 Rd2 Be6 Ne2 g1B Ng3 Qc8 Re2 Nc6 b8Q Nb4+ Kd1 c2+ Kd2 c1R b7 Ne7 Bg2 f1B Bf2 Nc2 Bh3 Bg2 Qa7 Nd5 b8B Rh4 Nc3 Bg7 Bb6 f2 Bc5 f1B Be5 f3 Nd1 f2 Qc7 Nb6 Nf5 Be4 Bf6 Bh8 Nc3 Kh5 g6 Bfg2 Qf7 f1R Nd6 Bd4 Be7 Rf6 Qe8 Rcf1 Nb1 Rb8 Re1 c3+ Kc1 Bb3 Be6 Bh3 Rg1 Qca6 Rg4 Rd8 Rd1 Qc4 Rf4 Nc8 Ba7 Rf7 Rg4 R1f6 Rd2 Nb6 Rf4 Ne1 Ra2 c2 Ra4 Qc6 Rc4 Qb5 Rc8 Qd5 Kd2 c1R Rg4 Rc6 Rf4 Bc5 Kc1 Nc2 Rg4 Bh1 Ra4 Qc4 Qd7 Be4 Ne8 Bf2 Qd4 Bg1 Qe3 Bf2 Qf4 Bd4 Qe3
N1r5/1n3P1B/P1nqQ3/2N3Rb/2PB3b/k3K1b1/n1bRN2n/3r1rrr b - - 0 1 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 g4 f5 f4 e5 g5 exf4 exf5 h6 Bh3 hxg5 Bf1 g4 Kf2 Ke7 a4 Kd6 h4 Kc5 c4 b5 f6 g5 a5 d5 h5 g3+ Ke2 g2 h6 g4 f7 b3 h7 Kb4 a6 d3+ Kf2 d2 Rh6 d4 Rg6 f3 Re6 d3 Qc2 d1R Ra5 b2 Rd6 g3+ Ke3 f2 Ra2 d2 Qd3 Nh6 Be2 f1N+ Kf3 Nf5 Rh6 Nc6 Ra1 Nd6 Na3 b1N Rh5 Bg4+ Kf4 Nc3 Qg6 Be7 Qh6 Rc8 Qg6 Nb7 Bd3 Bh4 Qe6 Na2 Qd7 Nh2 Ne2 g1B Bb2 g2 Bd4 Bgf2 Qe6 g1R Rg5 Rdf1 Rd1 Bfg3+ Ke3 Qd6 Bg6 Ka4 Bd3 b4 Nb5 b3 Nc7 b2 Na8 b1B Be4 Rhd8 h8N Bc2 Bh7 Bh5 Ng6 Rh8 Nf8 Kb4 Nd7 Ka3 Rb1 d1R Nc5 Rh1 Rb2 Rfg1 Bd3 Rh6 Bh7 Rf6 Rb6 Rff1 Rb2 Bb3 Rd2 Ba4 Ke4 Bc2+ Ke3
4Kb2/2RBN3/PbQr2n1/R3brB1/1nN4P/b2n4/1Pkb1rr1/1b2Bb2 b - - 0 1 illegal: No proof kernel
bR2k3/1b2n3/4n2N/Nr3pBR/PQ1q2bq/2NnrP1B/3b1bPK/2q5 b - - 0 1 legal: proof: e4 a5 b4 axb4 a4 g5 h4 gxh4 e5 c5 e6 c4 Rh3 dxe6 Rh1 e5 Ra3 e4 Rb3 cxb3 d4 h5 c4 e5 d5 b5 f3 h3 Kf2 h2 Kg3 h4+ Kf2 h3 Kg3 e3 c5 e4 d6 e2 c6 e1B+ Kf4 e3 c7 e2 Na3 b2 Nc2 b1B Na1 b3 Qc2 b2 Qd2 b4 Qc3 b3 Bd2 Rh5 Qh8 Bf2 Bc3 e1N Ne2 Be4 Bd2 b1Q Nc3 b2 Bd3 Rb5 Qe5+ Ne7 Qf6 Beb7 Bf5 Nbc6 Rg1 h1Q Bg6 h2 Bc1 Bg4 Qh8 Nd4 Bf5 f6 Qh4 Bh6+ Qg5 Qb8 Nb3 Qa1 Na5 b1B Bc8 B1e4 d7+ Kf8 d8N Ke8 Rf1 Ra6 Rg1 Re6 Nf7 Ba8 Bd2 Beb7 Rf1 Re3 Be6 Bh5 Bh3 f5 Rg1 Bg4 Rf1 Bg1 Kg3 Nd3 Qf4 Ne6 Qb4 Bg5 Nh6 Qb2 Nd5 Qd4 Re1 Re4 Bc1 Bd2 Nc3 Ree5 Re4 Bge3 Rf4 Qg1 Re4 h1Q Rf4 Qd1 Re4 Qhe1+ Kh2 Qh4 Rf4 Bf2 Re4 Bde1 Bg5 Bd2 Re1 Re3 Rh1 Qe1 Bf4 Qb1 Bg5 Bfe1 Kg1 Qc1 Rh2 Bh5 Bg4 Qg3 Rh4 Qgf4 Bh3 Qg3 Kh1 Bg4 Rh5 Qh4 Kh2 Bf2 cxb8R+
2qB2Q1/Pb4NK/8/n1n1b1pP/1b1RPb2/Rr3bN1/1NB3q1/2k1rr1n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g3 f6 g2 Qc2 exf6 Qb2 f5 Qa3 f4 Qg3 fxg3 a4 Kd7 d4 Kd6 Kd2 c5 Ke3 f5 Kf4 g5+ Kf3 b5 h4 b3 h5 b4 a5 f4 Ke4 b2 e3 f3 a6 b3 a7 c4 Ra3 f2 Rh3 c3 Ne2 g1B Rh1 c2 Ra6+ Nc6 Bd2 c1B Rh3 g2 Bc3 Rb8 Be1 Nf6+ Kd3 Ne4 Ba5 Bh2 Nbc3 b1B+ Kc4 g1Q Na4 b2 Ng3 Qg2 Bd3 f1N Bc2 Nc5 Rh4 Bb7 Re4 Qc8 Bd8 Ba2+ Kc3 b1R Nb2 Rh7 Ra3 Re7 Rh4 Na5 Re4 Kd7 d6 Kc6 d7 Kb5 d5 Bc4 Kd4 Kb4 d6 Bcd5 Rg4 Bf3 Rh4 Rf7 Ke5+ Rf4 Rg4 Re4+ Kf6 Bd2 Nf5 Ng3 Kg6 Nh1 Kh7 Be5 Ng3 Re1 Rf4 Rc4 Rd4 Be7 e4 Bdf4 Ra4+ Kc3 Ra1 Rb4 Ra3+ Rb3 Bb6 Bc6 d8Q Bb7 d7 Rf1 Qg8 B7d6 Bd3 Kd2 d8N Kc1 Bc2 Re3 Ne6 Ree1 Rdd3 Bc3 Bd8 Bb4 Rd5 Bde5 Rd4 Bd5 Nc4 Bbd2 Qg7 Rb3 Qg8 Bb4 Nb2 Bb7 Ng7
1B1nn1q1/3R2k1/1Q1rPbpq/q4Pn1/1b1P3r/3N2b1/2BN4/bKR1rN2 b - - 0 1 illegal: No possible last move, all moves rejected
B4B1R/1n2rP1K/N3qN2/4bkP1/Q1n1rB2/q1pb1bP1/1q1r3n/4R1b1 b - - 0 1 legal: proof: c4 f5 b4 a5 c5 axb4 c6 dxc6 Na3 c5 Nb1 c4 h4 g5 e4 fxe4 a3 bxa3 hxg5 Bf5 Qg4 Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 b5 d4 c5 f3 h5 g3 e3 Bg2 c3 Bf1 c2 Rh2 b4 Qd2 b3 Re2 b2 Rh2 h4 Qc3 e2 Qd3 e1R Ne2 a2 Nec3 c4 Nd5 h3 Nb6 Ra4 Nd5 Qd6+ Kg4 Na6 f4 Qa3 Be3 c1Q Qb3 Nc5 Qc3 Ba6 Rh1 h2 Bh3 Nf6+ Kf3+ Ng4 Qa5 Nb7 Nbc3 b1N Ke4 Qcb2 Bg2 Rh5 Rg1 h1B Nb5 Nh2 Nf6 Rd1 Rf1 Rh7 Re1 Rd2 Bf3 Rb4 Qa4 Bg7 Bg2 c3 Bf3 Qab3 Bg2 Na3 Rab1 a1Q f5+ Kf7 Rbc1 e5 Nc7 Nc4 d5 Qaa3 d6 Bh8 d7 Ke7 d8B+ Kd6 Ng8 Re7 f6 Qb3a2 Kf5 e4 Kg6 Ke5 Kh6 Kf5 f7 Be5 Bf4 e3 Bc6 e2 Kh7 Bf3 Nf6 Qa2b3 Rh1 e1B Bd5 Bf2 Rce1 Bb5 Na6 Bg1 Bb6 Ncd6 Bc6 Qe6 Bc5 Re4 Bb4 Bd3 Bd5 Nd8 Ba8 N8b7 Bc5 Nc4 Bd6 Re8 Bf8 Re7 Kg7 Nf1 Rh8 Nh2 Kh7
r3r2Q/1qB1PK2/1brNnPN1/2P5/1N3prk/b1R1B3/1q1q2n1/bR1n4 b - - 0 1 illegal: No possible last move
1R3q2/1b6/1R1n2N1/bnK1pQ2/1P2bbnr/r1P4b/P3R2B/1Nnr2Bk b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 h4 gxh4 Bg5 c5 Bc1 cxd4 c3 b4 Qd3 b3 Qc2 bxc2 b4 a5 Bc4 a4 Bb3 axb3 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 g4 h5 f6 d5+ Kc5 e5+ Kb5 b2 f5 d3 f7 d2 f6 d1R g5 d4 g6 h3 g7 h4 Be3 c1B Na3 b1B Nc2 h2 Bd2 h3 Be1 d3 Bh4 d2 Ne3 Bc5 f8Q Nc6 f7 Nd4+ Kc4 Bb6 Nd5 Nf6 g8R Nb5 Rg5 Ba5 Kc5 Ne8 Qg7 Ned6 Nb6 Qf8 Ne2 Kf3 Nf4 Be4 Bg3 Rh4 Ng6 Kg2 Qh7 Be6 Re1 h1N Nc4 h2 Re2+ Nf2 Na3 h1B Nb1 Bh3 Rf5 Kg1 Rf6 Ng4 Bf4 Bhf3 Bh2+ Kh1 Qh5 Bb7 Qf5 Bfe4 Re6 Rf1 Re8 d1N Rc8 Nb2 Rb8 Qe8 f8B Rd1 Bh6 Qf8 Be3 Bd2 Beg1 Bf4 Rd2 Ne8+ Rd6 Nd3+ Kc4 Nc1 Rb6 Ned6+ Kc5 Ra6 Na3 Ne2 Rc1 Ra7 Rc2 Nc1 Nb1 Ra8 Ra6 Bc7 Rc6 Ra3 Re2 Ba5 Rb6
2r1q1r1/2P3N1/2P1rn1N/2n2RK1/Pqr1B1Q1/b2pBr2/2Bk3n/r1b1R3 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 g4 exf4 d3 b5 Qd2 h5 Qb2 hxg4 Qf6 b3 Qb6 cxb6 c5 b4 Na3 Ba6 Nb1 Bc4 dxc4 Qh4+ Kd2 Qg5 Ke1 Qd8 Kd2 Ke7 h4 Ke6 a4 Ke5 e4 Kd4 e5 d5 e6 g5 c6 f5 h5 g3 c5 f3 e7 g4 e8B f2 c7 f4 c6 b2 h6 b3 h7 b5 Rh2 f3 Bc4 f1R Rg2 f2 Nc3 b1R Rh2 b2 Ne4 g2 Nd6 g3 Rh3 b4 Rh5 b3 Be2 Nf6 Nb7 Rg8 h8Q Na6 Rh2 Ba3 Bg6 Nc5 Rh7 Rc8 Rg7 Qe8 Ra2 Ra1 Beh5 b1Q Bf3 b2 Nh3 g1B Bfe4 g2 Qh5 Kc4 Ke3 Kc3 Kf4 d4 Bc2 d3 Be3 Re1 Kg5 f1R Be4 Rf3 Nf2 Bh2 Qh8 g1N Nd8 Be5 Qh3 Bf4+ Kf5 Re2 Re7 Qe1 Re5 b1R Qg4 Rb4 Ne6 Rc4 Ng7 Qb1 Rd5 Qb4 Rb2 Ree1 Rb1 Re2 Qg3 Re1 Ng4 Re2 Nh6 Re1 Bf2 Bfc1+ Qf4 Ree3 Kg5 Kd2 Qg4 Re1 Rf5 Ree3 Bd5 Re6 Bd4 Rf2 Be4 Nf3+ Kf4 Nh2+ Kg5 Rf3 Bf2 Bcb2 Re1 Bc1 Be3+
N6n/Nq6/b2BP2P/3prbrn/1r2nP1R/1Q1n3r/BBK5/q1R2kr1 b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 e5 g5 exd4 g6 b3 c3 hxg6 Bd2 g5 Bc1 g4 e4 f5 e5 b5 Be3 b2 Bc1 b4 Qe2 b3 Qe4 Bb4 cxb4 fxe4 h4 Ke7 a4 Ke6 f4 Kf5 e6 g5 b5 c5 a5 d5 a6 d3 a7 c4 b6 g3 h5 Kg4 b7 d2+ Ke2 d1Q+ Ke3 g2 Kf2 c3 Bb5 c2 Ke3 Kg3 Nf3 g1R Ra4 Kg2 Ra3 g4 Ra4 g3 Nh2 Nd7 b8B Ba6 Nf1 Ne7 Ra2 Qc8 Bc7 Ng6 Nfd2 Rb8 a8Q Nf6 Nf1 Qb7 Na3 b1B Be5 b2 Bc4 Rh7 Bb5 Nh8 Nd2 Rh6 Ndc4 Kf1 Rh2 g2 Bd6 Rh7 Rh4 Rh6 Bd2 c1N Bc3 Nd3 Nb6 Bc2 Bce5 b1N Ra1 Nc3 Bc4 Qb1 Kd2 Rh7 Ra2 Qa1 Nb5 Bb1 Rc2 Rh6 Ba2 Rh7 Ke3 Rh6 Kd4 e3 Na7 e2 Ke3 e1R+ Kd2 Re3 Bd4 Nce4+ Kd1 Rh3 Bb2 Rg6 h6 Rg5 Bb4 Nh5 Bd6 Rgh1 Rc1 g1R Bd4 Re5 Bb2 Rbg8 Qf8 R8g5 Qb8 R1h2 Na8 Rf2 Bd4 Rb2 Bc3 Rb4 Bb2 Qc7 Qb5 Qb8 Qa4 Qb7 Qb3 Ndc5 Bc7 Nd2 Nb5 Bf5 Na7 Nd3 Bd6 Ne4 Kc2+
4q2r/1Rb1b1qq/3P1N1R/8/3Q2NP/1nNbn3/p1rqP2K/Bk1Bb2b b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 g4 h5 f4 hxg4 b3 cxb3 Bb2 exf4 Ba3 Rh4 Bc1 Rh8 Kf2 Kd7 Kg2 Kd6 d4 Kd5 h4 Kc4 d5 f5 b6 a5 d6 g5 b7 c5 Bd2 g3 Nf3 a4 Nd4 g4 Bc1 b2 Qd2 f3+ Kg1 f4 Qe3 f2+ Kg2 a3 Rh2 a2 Nc2 f3+ Kh1 Nh6 Qa3 Nc6 b8N Bf5 Nd4 Be7 Nc2 Bd3 Nb4 Na5 Rg2 Qe8 Bd2 Nb3 Nd5 Nf5 Bf4 Ne3 Nd7 Rc8 Rg1 g2+ Kh2 g3+ Kh3 Rc7 Rh1 g1Q Qa7 g2 Nbc3 b1Q Nf8 Qd1 Qa8 Qd2 Nb6+ Kd4 Ng6 c4 Ncd5 c3 Bh6 c2 Qa7 c1B Rb1 Rc2 Nf6 Kc3 Ne5 Ba3 Neg4 Bb4 Bg7 Ba5 Re1 Kb2 Nbd5 Bad8 Nc3 Bc7 Nd1+ Ka1 Qd4+ Kb1 Rh2 Qh1 Kg3 g1B Bh3 f1B Rf2 Bg2 Rff1 f2 Nc3+ Kb2 Ra1 Bd5 Rae1 Qe4 Ra1 Qh7 Rab1+ Ka3 Rb2 Bh1 Bg2 Bh2+ Kh3 Be5 Bc6 Bg3 Rg1 f1Q+ Rg2 Bc4 Ba4 Be1 Kh2 Bd3 Rg3 Qff5 Rg2 Qg5 Rg3 Na5 Rb7 Nb3 Rf3 Kb2 Rf5 Qgg6 Rh5 Qgf7 Rh6 Qff8 Nfd5 Kc1 Be5 Qff7 Ndf6 Qfg7 Qe4 Nc5 Nb5 Kb1 Ba1 Rc3 Bd1 Rc2 Qd4 Nb3 Nc3+
1Qrnb1RK/Pr6/1R1P4/1p3pb1/1RNn1qN1/n1Bn1Pb1/4kBr1/n7 b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 a5 b4 axb4 Bh3 h5 gxh5 Bxh3 c5 b3 c6 Bc8 Nc3 Nxc6 Nb1 Nb8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Kg5 Kc4 d4 b5 a4 c5 h4 f5 Kg6 e5 d5 e3 f3 b2 h6 e2 h7 e1B a5 e4 d6 e3 h5 e2 a6 Qg5+ Kf7 Bg3 h6 e1N a7 Nc6 Rh5 Nd3 Bd2 Be7 Ba5 Qf4 Rh1 g5 Kg7 g4 Bc7 Rb8 Nc3 b1N Qc2 Na3 Qd2 Bd7 Qc1 Bg5 Bb6 Nd4 Nh3 Ne7 Nf2 Rb7 Rh4 Rc8 h8R Be8 Rg8 Nec6+ Kh8 Nd8 h7 Bh2 Rh6 g3 Ng4 g2 Rh4 g1R Qe1 Rg3 Ne4 Rg2 Nd2+ Kc3 Qe6 Bg3 Nc4 Kc2 Ra2+ Kd1 Qf7 Ke1 Qc7 Kf1 Qb8 Ke1 Nb2 c4 Bc5 c3 Nc4 c2 Bb6 Nb3 Bf2+ Ke2 Ra1 c1N Ra2+ Nc2 Ra6 Nbd4 Rb6 Ncb3 Rh1 Nba1 Rb1 Bc6 Rb4 Bd7 Kg7 Na3 h8B N8e6+ Kh7 Nd8 Bg7 Be8 Kh8 N4e6 Bb2 Nd4 Bc3
N2b1n2/3q1bq1/3qBr1b/Pp1k4/Bn2pq1P/2B1R1PK/5NRQ/3r2q1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 f4 h5 g3 g5 Bb2 gxf4 Qd2 h4 Qg2 h3 Bc1 hxg2 Kf2 Kf7 c4 d5 a4 e5 h4 b5 a5 b3 c5 b2 c6 d3 f6 Ke6 f7 e4 c7 d2 Rh2 d1Q Ra2 d4 Ra4 f3 Ra2 d3 Ra1 d2 Ne2 Ne7 Ra3 Kd5 Re3 Qd6 Ra3 Be6 c8B Na6 Ra1 Nb4 Nd4 Rh6 Bd3 Rf6 Ra3 Bh6 f8Q Ng6 Bc2 Bf7 Ba4 Qh1 Bf5 d1Q Re3 Rd8 Bd2 Rd7 Qc8 Nf8 Bc3 Qd3 Ne6 g1B+ Ke1 Qd4 Kf1 f2 Rg2 Qh3 Qc7 Qg4 Qd8 Qg7 Nc7+ Kc5 Na8 Kd5 Na3 Qd2 Nc2 b1Q+ Ne1 Qbd1 Qc8 Qf3 Nd3 Qff4 Rh2 Rd8 Kg2 Qd1 Kh3 f1Q+ Rg2 Rd7 Re1 Bb6 Nf2 Bd8 Re3 Qg1 Qc7 Qd3 Qa7 Rc7 Bc8 Rc4 Qd7 Rd4 Qg4 Qd2 Bf5 Qd7 Qe2 Qfd6 Bg4 Qdc1 Qb2 Rd1 Be6+ Kc5 Nd3+ Kc6 Rd2 Re1 Rf3 Rf1 Rdf2 Qcg5 Re3 Qgf4 Rh2 Rd1 Qg2 Qde5 Nf2 Qed6 Qh1 Kc5 Rg2 Kc6 Qh2 Kc5 Bg4 Kd5 Be6+
QR4n1/K1nP2P1/7r/1bnPq1Nk/1n2r2B/3r1p1B/2b1p1q1/2nR2NR b - - 0 1 legal: proof: c4 d5 b4 dxc4 h4 g5 b5 gxh4 b6 axb6 Qa4+ b5 Qd1 b4 d4 b5 f4 Ra6 e3 Bg7 d5 Bd4 exd4 Rf6 Bb2 Rxf4 Bc1 Rf2 g4 e5 a4 f5 d6 Kf7 a5 Kg6 d5 h5 d7 c5 g5 c3 a6 h3 a7 e4 a8R f4 Qe2 c2 Kd2 h2 R8a4 c4 Ra8 f3 Ke3 h4 Kd4 b3 Kc5 h3 R8a2 e3 Bg2 c3 Ra6+ Qf6 Qd3+ Kh5 g6 b2 g7 b4 Re6 b3 Kb6 Rd2 Ka7 Ba6 Rb6 Rh6 Rb5 Nc6+ Kb6 Nb4+ Ka7 Qe5 Qf1 Rd3 Rba5 Bb5 Bd2 c1N R5a3 c2 Nc3 b1B Nce2 b2 Ra4 Nb3 Qe1 c1N Ra6 Bc2 Nd4 b1N Nge2 Nc3 Ne6 Nc5 Ng5 Re6 Qg3 Re8 Rd1 h1R Be1 h2 Ng1 e2 Rb6 Re6 Rb8 Rh6 N1h3 Rg1 Qf4 h1Q Qf8 Qhh2 Bf1 Rg4 Bh4 Re4 Ng1 Qg2 Qc8 Nba6 Qc6 Nc7 Qa8 N3a2 Rb1 Nb4 Ra1 Qg4 Bh3 Qg2 Rf1 Nca2 Rad1 Nc1 Rf2 Qg4 Rh2 Qg2 Rh1
1BnB1n1K/2Np2NP/Q3P2b/1qbPr2r/1q1nnN2/5R2/pnk5/b1R5 b - - 0 1 legal: proof: f4 c5 a4 e5 b4 exf4 g4 cxb4 Kf2 b5 Ke1 bxa4 Nh3 h5 Nc3 f5 Bg2 f3 Nb1 f4 Ng1 Bb7 Bf1 Be4 Bh3 Bf5 gxf5 Bd6 Bg4 hxg4 Ra2 Bc5 Ra1 Bf8 Kf2 Ke7 h4 Kd6 d4 Kd5 c4+ Ke4 h5 g5 d5 a5 e3 g3+ Kf1 g4 h6 a3 c5 a2 c6 b3 f6 a4 f7 b2 c7 g2+ Kf2 g3+ Ke1 f2+ Kd2 f1N+ Kc3 a3 c8N f3 Ne2 g1N Na7 g2 Qd2 f2 Nc8 Qe7 Rh2 Na6 Nf4 Ng3 Rh3 f1Q Qe2 Nc5 Qb5 Nf3 Qa6 g1B Bd2 Qh4 Ne7 Qb5 Nf5 Nd4 Ng7 Nce6 Be1 Bc5 f8B Re8 Be7 Nf8 Bd8 Re5 Bd2 Ne7 h7 Nc8 Be1 Rh5 Bd2 Ng6 Be1 Re8 Bf2 Ree5 Be1 Nf1 Rf3 Nd2 Bf2 Nf8 Bg3 Nc4 Bh2 Be7 Bg3 Bg5 Bh2 Re6 Bg3 Bh6 Bh2 Ke5 e4 Qe1+ Kd3 Qeb4 Nc3 b1N Bg3 Nbd2 Rc1 a1B Bh2 Qb8 Nb5 a2 Nc7 Q8b5 Bg3 Bf2 Bh2 Bh4 Bg3 Be7 Bh2 Nb2+ Ke3 Kf6 e5+ Kg5 Bg3 Ne4 Bh2 Kg4 Bg3 Bc5 Bh2 Rg6 e6 Rgg5 Ne2 Na4 Nge8 Bb6 Na8 Q5c4 Bb8 Bc5 Nac7 Qcb5 Ng3 Nf6 Ne2 Nb2 Nf4 Re5+ Kf2 Kf5 Kg3 Rg5+ Kh3 Ke4 Kh4 Ng4 Ng7 Nf2 Nf5 Rg1 Kh5 Rh1+ Nh3 Bg7 Kg5 Bh6+ Kf6 Rh2 Kf7 Rh1 Kg8 Rh2 Rf4+ Kd3 Kh8 Ne4 Rf3+ Kd2 Nf4 Rh5 Rcf1 Kc2 Ng7 Nf5 Rb1 Nd4 Rc1+
3Bnr1n/1pn4R/2Qb2kq/rb1N1NP1/P1pB2n1/1R6/P1n5/1qRKb3 b - - 0 1 legal: proof: f4 a5 h4 g5 c4 gxh4 c5 e5 b3 exf4 e3 a4 bxa4 f3 Be2 fxe2 c6 dxc6 Kf2 c5 Qb3 c4 Qc2 Qe7 Qd1 Qd8 Ke1 c5 d4 h5 g4 f5 e4 Kf7 g5 c3 e5 h3 e6+ Kg6 d5 h2 d6 c4 d7 h4 e7 c2 e8R h3 Nc3 f4 Re5 f3 Nb5 f2+ Kd2 e1B+ Ke2 f1N Bb2 c1N+ Kf3 Qb6 d8B Bd6 Bc3 Na6 Na7 Nd3 Ke2 Nc7 Bd4 Nf6 Qc1 Bd7 Rb1 Ne3 Nb5 Nf4+ Kf3 Ra5 Ne2 Rf8 Rf5 Nfe8 Nec3 Nc2 Rb3 Qa6 Rg1 h1N Nd5 h2 Rf7 Nf2 Rh7 Ng4 Qd2 h1Q+ Qg2 Qh6 Rf1 Qb6 Rg1 Ba3 Nd6 Bb5 Nf5 Bd6 Rh1 Nd3 Ke2 Nde5 Kd1 Nf7 Nde3 Nh8 Qc6 Qc5 Nd5 Qb4 Rb1 Qb2 Rh3 Qa1 Rc1 Qb1 Rb3
1BBK4/PR2pq1r/3Q2Pn/r2q1b2/n5Pp/4br1N/1bR2r1r/1Bk3N1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 f5 h4 a5 e4 axb4 h5 fxe4 h6 g5 fxg5 Qc7 Qf3 Qd6 Qe2 Qxh6 Qd1 Qh2 Kf2 Kf7 a4 Kg6 c4 Kf5 a5 d5 a6 h5 g6 b5 c5 d3 Ke3 h4 Kd4 e3 g4+ Kf4 c6 d2 Kc5 e2 Kb6 Ke3 c7 e1B Nf3 d4 Bd3 b3 Bc2 d3 Ra5 b2 Rf1 b4 Rg1 b3 Rb5 Qf2 Nc3 b1R Rh1 b2 Bb3 Bh6 Ne5 Qf7 Na2 Rh7 Bc4 Bf5 c8B Nd7+ Kc7 Nb6 Qc2 Na4 Ra5 Ke2 Rb5 Be3 Rg1 Nh6 Rb7 Ra1 a7 b1R Nb4 Rb3 Qc3 d1R Nd5 Rd2 Nf4+ Kd1 Nh3 Rh2 Kd8 d2 Qd4 Kc2 Bb5 d1Q Nf3 Bc3 Qd6 Bb2 Rg2+ Qd2 Be2 Qdd5 Nfg1 Ra2 Bd2 Rb8 Ba5 Kc1 Bc7 Rb5 Bd3 Ra5 Bb1 Ra3 Rb3 Rb4 Rd2 Rf4 Bb8 Rff2 Rb5 Bed4 Rb7 Raf3 Re2 Be3 Rc2+
3N1RBr/3r3R/1Knqpq1k/1P2Q3/2r1N1n1/3n1PPp/4q3/2q1BbNb b - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 b4 g5 d4 cxd4 Bc4 gxh4 Bf1 b5 c3 bxa4 b5 Bh6 Rh3 Bf4 Rh2 Bd6 Rh1 Bb4 cxb4 Ba6 Qc2 Bb7 Qd1 Bc8 Ke2 Kf7 f3 Kg7 g3 d5 b6 a5 b5 h5 b7 h3 Qe1 e3 Kd3 h4 Qd1 e2 Bf4 e1N+ Kd2 h2 Ne2 d3 Kc3 a3 Kd4 a2 Kc5 d2 Nbc3 d4 Rc1 a1Q Bc7 a4 Bb6 a3 Rg1 h1B Ne4 a2 Bc7 d3 Ng5 Nc6 b8N Ra4 Bh3 Rc4+ Kb6 Qd6 Nd4 Nh6 Bf5 Ng4 Ne4 Kh6 Qe2 d1R Be6 d2 Bg8 Nd3 Rg2 Qc3 Rh2 a1Q Qe1 Qb1 Ne2 Qcf6 Ng1 Qba1 Rc2 Qc1 Ra2 Bf5 Ra8 e6 Qe2 Nge5 Bd8 Bh3 Be7 Bf1 Rh3 Qd7 Bb4 Qd6 Ba5 Ng4 Qe3+ Qff4 Qc5 Qf6 Qe5 Re1 Rh2 d1Q Rh3 Re2 Be1 Ra2 Rh2 Ra7 Rh3 Rd7 Rh2 Na7+ Nc6 Qdc2 Rf8 h3 Rd2 Q2d1 Rc2 Qe2 Rc3 Qd5 Nd8 Nc6 Ra3 Qd6 Ra7 Rf7 Re7 Rg7 Ree8 Ra7 Re7 Rd7 Rh7+
N3K3/1BpNB1N1/4r1P1/n2nnP2/1q1bn3/Pr4p1/2b2q1n/n1kQ1R1R b - - 0 1 illegal: No possible last move, all moves rejected
B4k2/2npN1qn/1n1r3R/N2q1Pr1/Pp2n2K/P5Q1/1R2n1r1/3brN1B b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 d5 g5 d6 gxh4 Bd2 cxd6 Bb4 axb4 Nf3 b3 Ng1 d5 a3 d4 a4 Bh6 Ra3 Bf4 Ra2 Bd6 Ra1 Ba3 bxa3 Qa5+ Qd2 Qc7 Qd1 Qd8 g4 h5 f4 b5 Kf2 e5 c4 b2 c5 e3+ Kf3 b4 f5 e4+ Kf4 h3 Kg3 h4+ Kf4 d3 g5 e2 Kg4 e1Q c6 d2 c7 e3 g6 e2 g7 h2 Nf3 h3 Rg1 h1N Nh4 h2 Qc1 d1R Qc2 Na6 Qd3 Qe7 Qd6 Qd2 Rg3 e1R Re3 Ng3 Bg2 h1N Bf1 Qd5 Re4 Rh5 Bg2 Ne2 Kh3 Bb7 c8B Nc7 Re6 Nf6 g8N Nh7 Nd2 b1N Nc4 Kf8 Na5 Nd2 Rh6 Nhg3 Ra2 Rg5 Nf3 Nc4 Bh1 Ne4 Qg3 Nb6 Kh4 Qg7 Ne7 Rd2 Nh2 Ra6 Nf1 Bc6 Bb7 Bb5 Nec6 Bc4 Qg2 Bb3 Ne7 Bd1 Bc6 Nc1 Qf3 Rdg2 Qg3 Ne2 Rc2 Nc8 Ba8 Rd6 Rd2 Nb6 Rb2
nb1R4/2Pp1Pn1/N1p1rBK1/1qb1Pn2/bN4R1/1k6/2bQ3B/n4nqN b - - 0 1 illegal: No proof kernel
2rqr1B1/1qPPnp1k/3rq3/B1n1pQn1/b7/4r3/R3BRP1/K1n1NN2 b - - 0 1 illegal: No possible last move
8/N1p1n2k/2q1r1bR/RPRr4/3qQ3/r3N3/1P1pqP2/Bbb1BqbK b - - 0 1 illegal: Other
1bnrR1R1/k3n3/B1r2b2/KbNp4/1r1n1BP1/PRp4r/1P1Q1n2/2N3r1 b - - 0 1 illegal: No proof kernel
4b3/2P4R/1r1p3n/1P1BNR2/1N1B1b2/1Rb2p1P/bQ1bbkn1/1qn2n1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kf2 Ke7 Kg2 Ke6 c4 Kf5 b4 Ke4 b5 a5 h3 g5 c5 f5 e3 g3 c6 d3 c7 a3 Bd2 a4 Rh2 f3+ Kh1 f2 Be2 f1B Be1 a2 Nf3 g2+ Kg1 d2 Nd4 f4 Rh1 a3 Nb3 g4 Bg3 f3 Be1 Bd6 Rh2 Rh6 Nd4 Ra4 Nf5 Nc6 Bg3 Ne5 Nh4 Nc4 Rh1 Bf4 Bh2 Rb6 Ng6 Nh6 Qc1 d1B Bg3 Bb3 Bf2 Nd2 Ne5 Rd4 Bc4 Be2 Bg8 Nf1 Be1 d6 Qc4 Qf6 Bc3 Qg6 Bb4 Bd7 Qc3 Be8 Bc5 Bbf7 Qb2 Bfc4 Kf2 g1N Rh2 Bd5 Rg2 Qf5 Nc4 Kd3 e4 Bdf7 e5 g3+ Ke1 Bd5 e6 Qh7 Ne5+ Ke3 e7 Qe4 Rf2 g2 Nc3 Bdc4 Rc1 a1N Bd5 a2 Rc2 Nb3 Rc1 a1B Na2 Qh7 Nb4 Qb1 Rd1 Nc1 Rd2 Bg6 e8R Ba2 Re7 Bh5 Rh7 Be8 Qc2 Bc3 Qb2 Bd3 Rh8 Nge2 Rh7 g1B Rg2 Bdc4 Rg5 Bgh2 Rf5 Bg5 Kd1 Kf2 Rd3 Bcd2 Ra3 Nf4 Rb3 Bd3 Qa3 Bc3 Qb2+ Kg1 Qd2 Be2+ Ke1 Kh1 Kf2 Ng2 Qc2 Bhf4 Qb2 Bfd2 Ng4 Nfe3 Kg3 Kg1 Ne5 Kf1 Kh2 Bf4+ Kh1 Kf2 Be6 Nf1 Bg8 Bfe3 Bd5 Bf4 Bxd4+
2N5/p1nP2qn/1r4R1/1Rrb2rn/1k2pP1q/2N1qPpb/Q1BB4/2KB4 b - - 0 1 legal: proof: c4 f5 a4 d5 h4 dxc4 g4 b5 g5 bxa4 e3 g6 Qg4 fxg4 Nh3 Bg7 h5 gxh5 Ng1 h4 Be2 Be5 Bf1 Bf4 exf4 Qd4 Rh2 Qd3 Rh1 Qd8 Kd1 Kd7 b4 Kd6 d4 c5 g6 h5 b5 e5 b6 h3 g7 a3 b7 a2 d5 c3 Nd2 h2 Nb3 h4 Na5 c2+ Kd2 h3 Ba3 c1Q+ Kd3 Rh6 Rb1 a1Q Bb2 c4+ Ke2 Kc5 d6 c3 Nc4 c2 Nb6 Na6 b8Q Nc7 Bc3 Qh4 Bd2 Nf6 g8B Nh7 Bb3 Rh5 Kd3 Rg5 Ne2 Be6 Qe8 Rb8 Nc3 Kb4 Nc8 Rb6 Rg1 h1B d7 h2 Be2 Bhd5 f3 h1N Qg8 Ng3 Bd1 e4+ Ke3 Qab2 Ra1 Nh5 Ra5 Qba1 Qf7 Qca3 Ke2 c1R Bbc2 Bf5 Be3 Bfe6 Kd2 Q1b2 Nb5 Qg7 Nc3 Rc6 Qg8 Rc5 Rg3 Rb1 Rg2 Rb2 Kc1 Bf5 Bd2 g3 Rh2 Bh3 Rh1 Ba8 Qa2 Bb7 Ra6 Bd5 Rg6 Qa6 Re1 Qd3 Re3 Qdd4 Rd3 Qe3 Rd4+ Bc4 Rd5 Bb3 Rf5 Bd5 Rf8 Ba8 Qa6 Rb5 Rff6 Kc4 Rd6 Bd5 Qa2+ R2b3 Ra6 Rc5 Qa5 Rb7 Qa2+ Kb4 Ra5 Rb6 Rb5+
1K1R1kn1/rbnp3b/2NB2P1/3R2Bn/N1P2P1p/3p1b1Q/2n1B2n/3r2q1 b - - 0 1 illegal: No possible last move
4q1qB/1R4b1/5pq1/bq1P1q1k/2rp1Rr1/1N1Q2pK/1P1PN1n1/1N2B2n b - - 0 1 illegal: No proof kernel forced: bxDB
1Q1Rr1q1/b1q2B2/1P1pr3/3p1n1P/k1N2q2/2R2B2/n1N1prP1/B1n2nK1 b - - 0 1 illegal: No proof kernel
1B6/3NKn2/n1p2R2/1Np1nP1k/P4n1q/4qP1r/Q3rB1p/1nRNb1n1 b - - 0 1 legal: proof: h4 a5 c4 g5 b4 axb4 c5 gxh4 c6 dxc6 f3 Bg4 f4 Bf3 exf3 f5 Bd3 c5 Be4 fxe4 Ke2 Kf7 Ke3 Kg6 a4 b5 d4 h5 g4 b3 g5 h3 d5 b4 d6 h2 d7 h4 f5+ Kh5 Kf4 b2 Ke5 h3 Ke6 b3 g6 e3 g7 e2 Kf7 e1N Qd3 Ng2 Qe2 Nf4 Ra3 Na6 Nc3 b1Q Qe4 b2 Nge2 Qd3 Rf1 b1N Qc6 h1N Qe4 h2 Nd1 Nf2 Nb2 N2h3 Qc6 Ng1 Nd4 Qe3 Rd3 e5 Nd1 e4 Qd5 c6 Nb5 Bd6 Bd2 Qh4 Qa2 Re8 d8B Bb8 Bg5 Nh6+ Kf6 Bc7 g8N Ba5 Be1 Nf7 Bf2 Be1 Rd6 Qc1 Na3 e3 Nb5 e2 Re6 Re7 Rd6 Re4 Re6 Qe3 Ke7 Ba5 Bf6 e1N Bg5 Ned3 Bf6 Ng5 Be5 Be1 Bb8 Ne5 Rd6 Ngf7+ Nf6+ Kg5 Nd7 Kh5+ Rf6 Qd4 Nd6 Re2 Nb5 Qe3 Bd6 Rg8 Bc7 Rg3 Bb8 Rh3 Nb2 Bd2 Rc1 Be1 Nd1
1B1kn3/2ppq3/p4nP1/1rNR1rp1/1N6/K1Nr1Q1r/bBbRr1PP/8 b - - 0 1 illegal: No proof kernel
1r2b3/2N5/n2qPkBp/bnrR1qp1/1P3R2/1qqP3N/1N1pK1p1/1B2Q3 b - - 0 1 legal: proof: h4 d5 g4 e5 c4 dxc4 a4 f5 d3 b5 Kd2 bxa4 h5 e4 Kc3 e3 Bd2 exd2 Kc2 Qd6 Nc3 g5 Nb1 Qg6 hxg6 fxg4 f4 Ke7 e4 a5 e5 c5 g7 h6 f5 c3 e6 c4 b3 a3 Ne2 a2 Bg2 g3 Qc1 a4 Kd1 a3 Bf3 g2 Qc2 Kf6 Rh3 Na6 Ng1 Bd7 Qb2 Ne7 g8B Rc8 Bd5 Rc5 Rf3 Nc8 Nh3 Na7 Ke2 Be8 Bh7 Nb5 Qc1 c2 Qe1 c1Q Rf4 c3 Bg6 c2 Nc3 Qb2 Na4 c1Q b4 Be7 Bc4 Qb3 Nb2 Qcc3 Rc1 a1Q Rc2 Ke5 f6 a2 f7 Bd8 f8N Ba5 Nh7 Qd4 Rc1 Qd6 Nf6 Qb1 Rc3 a1Q Nd5 Rg8 Nc7 Qc1 Rd4 Kf6 Rd5 Qaa4 Rc2 Qc3 Ba2 Qab3 Bb1 Qce5+ Be4 Qf5 Rc4 Qcc3 Rcd4 Bc6 Rc4 Rb8 Rcd4 Be8 Rc4 Qff4 Bg6 Qf5 Rf4
1R6/R1q1Bp2/3BP3/N3qk2/5n1K/r1bbp1p1/PN1rbPpb/r4QB1 b - - 0 1 legal: proof: c4 b5 b4 h5 g4 hxg4 Nf3 a5 Ba3 axb4 Bc1 b3 Ng1 b4 Bh3 Nc6 Bg2 Ra6 Bf1 Ra8 d4 Na7 d5 Nb5 cxb5 e6 e4 exd5 e5 Qh4 Na3 Qf6 Nb1 Qd8 Bg2 Bb7 Bf3 Bc8 Be4 dxe4 h4 Ke7 e6 Kf6 h5 g5 b6 c5 b7 d5 b8B d4 h6 g3 h7 g2 Bd6 g4 Bcf4 d3 Bfe5+ Kf5 Nc3 c4 Rh6 b2 Bg7 b1R Rg6 e3 Bg3 b3 Nd5 d2+ Ke2 c3 Bh2 b2 Qf1 c2 Bd6 c1B Nf3 Ne7 Ne5 Ra3 Nb4 Qc7 Nbc6 Ba6+ Nc4 Nd5 Bf6 Bb5 Bh2 Bd6 Bg1 Bh2 Na5 g3 Kf3 Rd8 h8B Nf4 Rg8 Rd4 Be7 d1Q+ Qe2 Qe1 Be5 Bd2 B5d6 Bc3 Qf1 Rd2 Rb8 Rbd1 Rc1 b1B Nb2 B1d3 Rc2 Ra1 Rc1 Bbc4 Rb1 Qc1 Rb7 Qc5 Rd7 Qe5 Ra7 Kg6 Kg4 Be2+ Kh4 Kf5 Na4 Bcd3 Rb6 Qb1 Rb8 Qb6 Nb2 Qd8 Qc1 Qc7 Qf1
1nKn4/1NBP1N2/p2RN2P/rQB2q2/1p2p1n1/1RPr1pp1/1rk1q3/1b6 b - - 0 1 legal: proof: e4 b5 g4 d5 b4 dxe4 a4 bxa4 g5 c6 g6 hxg6 Bh3 g5 Bf1 g4 f4 e5 b5 e3 b6 e4 Be2 Bd6 Bb5 Be5 fxe5 cxb5 Ke2 Kd7 h4 Kc6 d4 Kd5 c3 Kc4 b7 f5 e6 g5 e7 f4 e8N a6 h5 a3 d5 b4 d6 a2 Qf1 Kb3 Bb2 g3 Nc7 g4 Ne6 g2 Na3 g3 Nf3 Qd7 Nfg5 Ne7 Nb5 Nec6 Nf7 Nd8 Bc1 Kc2 Rb1 a1R Rb3 Ra5 h6 Rf8 Rh5 g1Q Rd5 Qg2+ Ke1 e2 Be3 f3 Bc5 Ra2 Rd3 Rb2 Rd4 Rg8 Rd3 Rg5 Rd4 Nbc6 b8B Qh2 Bc7 Nb8 Rd1 Bb7 Rd4 Bd5 Rd3 Bc4 Rd4 Bd3 Rd5 Kb1 Rd4 Bc2 Kd2+ e1N+ Ke3 Qe2+ Kf4 Kc1 Rd3 Bb1 Rd4 Kc2 Rd5 Rg6 Kf5 Rg5+ Kf6 Qc8 Ke7 Ng2 Rd3 Ne3 Rd4 Ng4 d7 Rd5 Rd1 Rd3 Nbd6 Qb7 Ke8 Qd5 Nb7 Qf5 Ke7 Re3 Rd6 Rd3 Ke8 Ra7 Na5 Rb7 Ke7 Rb6 Nb7 Rb5 Ke8 Ra5 Ke7 Ndc6+ Ke8 Na7 Kd8 Nac6+ Kc8 Nd8 Qh3 Qg6 Qh5 Qh7 Qd5 Qg6 Qc4 Qf5 Qb5
B3n1q1/1q1R4/1br1q2N/4p3/1np2pNk/KP1pPPp1/2NQ4/1qr2BR1 b - - 0 1 legal: proof: d4 b5 a4 bxa4 c4 h5 g4 hxg4 c5 Bb7 c6 Ba6 d5 Bc8 d6 cxd6 h3 g5 Qd5 g3 Qe5 g2 Be3 g4 Nc3 g3 Nb1 Ba6 Qd5 Bd3 Bc5 Bf5 Qd1 Bg4 hxg4 dxc5 Kd2 f5 Kc3 Kf7 g5 Kg6 c7 d5 c8N a5 f3 e5 b3 d4+ Kb2 d3 e3 a3+ Ka2 c4 Nb6 a4 Rh5 f4 Nd7 Na6 Qc1 Nf6 Nc3 Nb4+ Kb1 a2+ Kb2 Ne8 Qc2 Bc5 Nd5 Rc8 Rh7 Bb6 Ne2 g1Q Nd4 Rc6 N5f6 Qa8 Qd1 Qb7 Nc2 Qh1 Qe2 Qh6 Ng8 Kh5 Ndf6+ Kh4 Rd7 Rh7 Ng4 Qe6 g6 a3+ Kc3 Rh5 N8h6 Qg8 g7 Qe6 Rb1 a1Q+ Rb2 a2 g8B Qc1 Qd2 a1Q Bh7 Qa5 Be4 Qad5 Rb1 Qg8 Ra1 Qde6 Bd5 Qe1 Kb2 Qb1+ Ka3 Kg5 Bg2 Rh1 Bh3 Rc1 Bf1 Rc5 Bc6 Kh4 Be4 Qc7 Bb7 Rc6 Ba8 Qb7 Nf7 Re1 Bh3 Qd1 Nfh6 Rh1 Nd4 Qc2 Rf1 Qb1 Nc2 Rh2 Rd1 Rf2 Rh1 Rf1 Rg1 Rc1 Bf1
1bbQ4/P1R2Pqn/5q2/BP2p3/pr1R1bR1/1pp2p1N/4n2k/1B1bK2N b - - 0 1 illegal: No proof kernel
4q2q/1r1b3n/K1Qp1N1p/BP2PRB1/1NN2b1p/kp3Rn1/r3Ppp1/8 b - - 0 1 illegal: No proof kernel
1bb1q3/2bPnR1N/B1qr1bn1/2b4K/PB1Q1r1b/4r1k1/b2RPq1R/1N6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 Kf2 Ke7 d4 Kf6 a4 Kf5 h4 b5 d5 c5 h5 g5 d6 f3 Kg3 f2 h6 b3 h7 b4 d7 c3 Ra2 c2 Bh3 f1R Nf3 c4 Nc3 b2 Qd4 b1Q Bb2 c1B Nd2 b3 Qg7 Bd6+ Kg2 Kf4 Nd1 f5 Ba3 c3 Qh6 b2 Qg7 c2 Qe7 g3 Nc4 g4 Qh4 Ne7 Nde3 Ng6 Bc5 Re8 h8R Ra6 Bb6 Nc6 Na3 Bc7 Bd4 Nce7 Bc3 Rd6 Bd2 Rf3 Kg1 g2 Kh2 g1B+ Kg2 Bh2 Qf6 g3 Bc3 Qa1 Nac4 b1B Rf1 Bb2 Bg4 c1B Ra3 Ba2 Kh3 Bd2 Rf2 Qh1 Qh4 Be1 Bb4 Bf6 Rd3 Bb8 Nf1 g2+ Ng3 g1B Nd2 Bc7 Rf1 Bc5 Nb1 Rf8 Rd1 Qe8 Rd2 Bef2 Rh6 Re3 Rh5 Qc6 Bf3+ Ke5 Rh7 f4 Kg4 Be1 Bh1 f3 Ne4 f2 Kh5 Bf4 Ng5 Bh2 Rg1 f1Q Rg2 Qf2 Rf7 Kf5 Qc4 Bb8 Qc3 Kf4 Nh7 Bg3 Qd3 Bh4 Rh2 Kg3 Qd4 Bc7 Rc2 Bc3 Rd2 Be5 Rg7 Rf4 Rf7 Bef6 Bd5 Bb8 Bb3 Ba1 Bc4 Bc3 Ba3 Ba5 Bb4 Bac7 Ba6
1q3n2/NbB1Rq1r/2Rr2nb/b5P1/KQ1P4/P5nN/1N4nk/qqq1nB2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 g4 Ke6 d4 f5 Kd2 h5 Kc2 c5 g5 b5 a3 h3 e5 b3+ Kb2 f3 Qd3 h2 Qd1 f2 Qc2 h4 Kc3 f4 Qh7 h3 Qa7 Kf5 e6 Kg4 e7 Kg3 e8N b2 Bd3 f1N Qd7 f3 Qg7 b4+ Kc2 c3 Kb3 f2 Qh6 c2 Nf6 c4+ Ka2 c3 Kb3 Ne3 Ne8 f1Q Qf6 Bh6 Bc4 Bb7 Ba6 Nd7 Qf8 Ne7 Ka4 b3 Nc7 Ng6 Qf7 Ng2 Ne6 Rh7 Nd2 b1N Ng7 b2 Ne6 Ndf8 Ra2 Qb8 Nc4 Nd2 Ne5 Nf3 Be3 c1B Qg7 Bd2 Qe7 c2 Qd7 N2h4 Nc7 Ba5 Nd3 Ra7 Bb5 Ra6 Qe7 Qa1 Bc1 b1Q Qb4 Rc6 Bd2 c1Q Rc2 Rb6 Rc5 Qc4 Nb2 Qf7 Bf4+ Kg2 Nd5 Ra6 Bc7 Rd6 Rc6 Kg3 Ne2+ Kg2 Rf1 h1N Ng1 h2 Ne7 Ng3 Nh3 h1Q Re1 Kh2 Nc8 Ng2 Re7 Qhc1 Bf1 Nfe1 Na7
3b4/Bq1rn3/1PbRK2n/2R5/b1N3kQ/3qPNbr/1rn2PBR/2q1q2b b - - 0 1 illegal: No proof kernel
K6n/Pr2NRn1/2b1RQn1/2P1N2k/qP1R1bn1/6qq/1Bb5/1Br1rqq1 b - - 0 1 illegal: No proof kernel
4Q2r/Kn1r1B1r/2R1q2q/6kP/1rNnR1PB/Rq2b2b/1Nq2Pr1/4r1q1 b - - 0 1 illegal: No proof kernel
2b5/1b3B1r/4rb1P/2N1QR2/1r1n1q1n/1rr2kP1/bNRnPnb1/1BK3B1 b - - 0 1 illegal: Other
n2KR1R1/rNN1Bk1b/2q1P3/1bb2r2/1Q2n1b1/1BnPB3/Pr4rn/b3n3 b - - 0 1 illegal: No possible last move
1bRr3r/1N1qb3/5k1N/Qb4P1/1qP1bP1K/n2q1b1B/3Rr1b1/1n1qR1B1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 g4 Kf7 c4 d5 a4 e5 a5 b5 f3 h5 Kf2 h3 Kg3 h2 a6 b3 a7 e3 Qe1 b4 Na3 e2 Nh3 b2 Nb1 h4+ Kf2 d3 Bd2 d4 Ra6 e4 Na3 b1B Bf4 e3+ Kg2 b3 Qd2 e1B Bg5 e2 Qb4 b2 Qd2 Bd7 Qc2 d2 Rg1 h1B+ Kh2 d1Q Rc6 d3 Nb5 d2 Bg2 Ne7 Qb3 Be4 Bh6 b1Q Qe3 Na6 Rd6 Qb4 Qd3 Nc7 Qb3 Ned5 Qa3 Be7 Bg7 Nc3 Qb2 Nb1 Qa2 Rc8 Bf1 Bg2 a8R Qc2 Ba1 d1Q Qa5 Qcd3 Bd4 Be8 Be3 Qd7 Ng5+ Kg7 Rd4 h3 Nd6 Nb5 Ngf7 Kf6 Nh6 Rd8 Nb7 N5a3 Rc8 Bh4 Rh1 e1R Bg1 Re2 f4 Bf2 Rd5 Ba7 Rd4 Bef3 Kg3 h2 Kh4 Bb8 Rd5 Be4 Rd4 Bgf3 Bh3 Bg2 Be3 Bef3 Re1 h1B Bf2 Be4 Bg1 Bgf3 Rd5 Bhg2 Rd4 Qe6 Rd6 Bb5 Rd4 Qd7 Rd5 Q3b3 Rd2 Qbd3 g5+
2R2q2/qb1b1qbQ/PB3q2/1BN3P1/BrP2n2/K1nnqk1q/2b5/4rN1R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 e4 Kd6 c4 Ke5 Kc2 f5 Kb2 b5 g4 d5 a4 h5 a5 f3 a6 f4 g5 f2 Qb3 f3 Nh3 d3 Na3 d4 Nb1 d2 Ra5 d1B Bd2 d3 Be2 f1Q Be1 f2 Nf4 h3 Nc3 h4 Ka2 d2 Ng2 h2 Nf4 h3 Kb2 Ne7 Bh5 Bg7 Nb1 Re8 Ra4 Nd7 Ra3 Nd5 Ne6 Nf4 Nd4 Rb8 Ra1 Qf6 Qc2 b3 Ne6 b4 Nc7 Nc5 Rg1 h1Q Na3 h2 Na8 Bd7 Bg4 Ncd3+ Kb1 b2 Ka2 b1N Nc7 Nc3+ Kb3 Qhg2 Rh1 Qh3 Rb1 Qe2 Rb2 f1Q Bf2 Qee3 Nb1 Bf3 Bf5 d1Q Ne6 Qde2 Bg1 Qa7 Nc5 Qe3 Nd2 Qh5 Be6 Qhf7 Rb1 Kd4 e5 Bb7 Bh3 Qf3 e6 Qf8 e7 Qh5 Nde4 Qhf7 Ng3 Ke5 Nf1 Kd4 Ne6+ Ke4 Nc5+ Kf3 Rd1 Nf2 Kb2 b3 Qh7 N2d3+ Ka3 b2 Rd2 b1B Be6 Bdc8 Bd7 Bc2 Bb5 Bd7 Bf2 Bd5 Ba4 Rb4 Re2 Bb7 Re1 Rc8 e8B Rc6 Rb1 Re6 Rb2 Bdc8 Beb5 Bd7 Rg1 h1Q Rb3 Qh4 Rh1 Qh3 Rb1 Ne1 Rd1 Re4 Rd6 Ned3 Rc6 Qed4 Rc8 Re1 Nb3 Qde5 Bb6 Qe3 Nc5
Kn1n3R/2R1b1r1/2Q2RqN/k2b3q/1NqB1r2/1B1P1Prr/P4r1b/1b2q3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 g4 Kb6 f3 c5 d3 e5 g5 h5 g6 b3 g7 c3 Qd2 c2 Qg2 h3 Qd2 h4 Be2 b2 Na3 b1B Qc3 c4 Qb3+ Ka5 Rh2 b5 Qc3+ b4 Bf1 Qd6 Qb3 c3 Rf2 h2 Bh3 h1Q Bf1 h3 Rd2 h2 Rf2 Rh4 Ne2 Be6 Ng3 Ra7 Ne2 Bd5 Qb2 b3 Bd2 c1Q Nf4 Qg6 Nb5 Ne7 g8R Nec6 Rg7 Nd8 Be2 Be7 Ne6 Rf4 Qc2 b2 Bd1 Rc7 Ng5 Rd7 Ke2 e3 Nc7 e4 Na6 Rc7 Nb4 Rd7 Qb3 c2 Qc3 Ra7 Rf1 Rb7 Rf7 Ra7 Ke1 e2 Kf2 e1B+ Ke3 Bg3 Kd4 e3+ Ke5 e2 Qc6 e1R+ Be3 Re2 Rf6 Rf2 Nf7 Qd2 Rg1 c1Q Bb3 Qc4 Rc1 Qhe1 Rc2 h1R Nh6 Rh3 Rc1 Qh1 Bd4 Bh2 Rc3 Bc2 Rg1 b1R Rg4 Rg1 Rh4 Bb1 Rh5 Bf8 Rc2 Re7+ Kd6 Rgg3 Rc3 Qde1 Rh4 Nd7 Kc7 Rg7 Rc1 Be7 Rc2 Nb6 Kb8 Nd7+ Ka8 Nb8 Ng8 Qe5 Rh8 Qhe1 Nh6 Qeh5 Qb7 Qb5 Rc7 Qc4 Qc6
6R1/K3nk1P/bnr1n1Rb/1NP1B3/2q1bP2/b2QrrRB/2bN4/n3rq2 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Ke2 e5 h4 d5 a4 b5 f4 g5 c4 d3+ Ke3 b3 h5 d4+ Kd2 e3+ Ke1 b4 a5 b2 a6 b3 a7 d2+ Ke2 e4 h6 g3 h7 g2 Rh2 g4 Rh5 g3 Ra2 Ba6 Ra1 Ne7 Rd5 Qc7 Nf3 g1B Bh3 d3+ Kf1 e2+ Kg2 e1R Rb5 e3 Ne5 e2 Kf3 g2 Ke4 Bh6 Bg4 Bc5 Nd7 g1N Rba5 Nh3 R1a2 Ba3 Kd4 Kf7 Nf8 Nd7 Rd5 Ng5 Bh3 Nb6 Nd7 Rae8 a8R Ne6+ Ke3 Rhg8 Rg5 Rg6 Qc2 d1Q Nf8 d2 Rg3 Rf1 Rc8 e1N Qd3 Nc2+ Ke4 Rf3 c5 Qf1 Rb8 d1R Nd2 b1B Bb2 Rf6 Be5 Na1 Rc2 b2 Rc3 Bc4 Rg6 Bc2 Rd8 b1B Ra8 Nd8 Ne6 Ba6 Nd4 Rc6 Nb5 Re1+ Kd4 Qc8 Rb3 Qe6 Kc3 Bc1 Kb4 Ba3+ Ka5 Qc4 Rb8 Ne6 Rc8 Rd8 Rb8 Rd4 Rbg8 Rde4 Rc3 R4e3 Rb3 Bc8 Rc3 Bd7 Ka6 Bc8+ Ka7 Ba6 Qd8 Be4 Qd3 Qb3 Rc4 Bc2 Rd4 Qb4 Rd6 Qc4 Rg3 Nc7 Rdg6 Ne6 Rd8 Rd1 Rc8 Rde1 Rcg8
r2q1bBR/N2r3b/q5n1/3qP3/1P3kRP/r1QprN2/n1b1RK1B/4rn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 c4 Ke7 h4 Kf6 e4 Ke5 b3 g5 c5 a5 c6 f5 c7 d5 Kf2 f3 Be2 g3+ Kf1 f2 Ra3 d3 Bb2+ d4 Qc1 g4 Ra2 f4 Ba1 a3 Qd2 a4 Qe3 d2 Bb2 d1Q+ Kg2 f1N Bc4 Ne7 Qf2 Ng6 Qe1 Nc6 Rh3 f3+ Kh1 f2 Kg2 Kf4 e5 Bf5 c8R Rh7 Nd2 Nb4 Ba1 Bc2 Nb1 Rd7 Rb2 a2 Bf7 a3 Nc3 Qd3 Be6 Qc4 Nf3 Qd5 Rb1 d3 Bb2 a1Q Rh1 a2 Qd1 Bc5 Rc7 Rd6 Rg1 Ne3+ Kh1 g2+ Kh2 g3+ Kh3 f1B Qd2 Nh8 Rh7 Rd7 Nh2 Bf8 Ne2+ Ke4 Nd4 Be2 Ba3 Bh5 Bg8 Bg6 Nc6 Kf5 Rge1 g1R Qc3 g2 Kg3 Rh1 Na7 g1R+ Kf2 Rg3 Rg1 Rh3 Rg4 Rd1 Rh6 Nf1 Bc1 Rg3 Bf4 Re3 Nf3 Ke4 Bh2+ Kf5 Rg3 Kf4 Bf7 Rc1 Rh7 Rd1 Rg7 Bh7 Rg8 Ng6 Rc1 Rde1 Rh8 Bb1 Rd1 Bc2 Rd2 Qb1 Nd4 a1R Re2 Qa2 Nf3 Qa6 Be6 Ra5 Bg8 Na2 b4 Ra3 Rg4+
5N2/1kN2q2/1qR1P1PP/5rBB/nn2rbrn/1r2Nr1Q/2R1p3/K2bb1q1 b - - 0 1 illegal: No proof kernel
kn2Rr2/1RPPN3/4Br1P/2r2q1b/K2BnB1Q/2N2q2/p2nr3/1b1rb2q b - - 0 1 illegal: No proof kernel
2n1nB2/nB1NPknN/1Rn2p2/2nK2P1/R3nb2/r1Q5/2q1rPb1/qb3R2 b - - 0 1 legal: proof: d4 e5 h4 exd4 c4 g5 b4 gxh4 b5 a6 Nh3 axb5 Ng1 bxc4 Be3 c3 Bd2 Bg7 Bc1 Bf8 e4 b5 Ke2 c5 Kf3 d5 g4 h5 a4 c2 e5 c4 a5 c3 a6 h3 g5 h2 e6 h4 a7 h3 Ra6 b4 Ba3 c1N Be2 b3 Bf1 c2 Qe1 f6 Qe5 b2 Nd2 b1B Ne2 d3 Kf4 d4 Ke4 Nc6 Qd5 Nge7 Rb6 Qc7 Qc5 Bb7 Rb2 Nb3 Nf4 c1Q Qc3 Nc8 Qc4 Bd6 Qc2 Nc5+ Kd5 Kf8 Nb3 d2 Ng2 d1N Be2 d3 Re1 h1N Rg1 d2 Nd4 h2 Nf5 Ng3 Ra2 h1N Qe4 Nb2 Qe3 d1N Nf4 Nh5 Bc4 Ng7 Qc3 Ng3 Ne7 Nge4 Nd3 Bf4 Ba6 Nc4 Ne5 Nc4d6 Rb2 Nde8 Rb6 Rh3 Bb4 Re3 Rf1 Re2 N7g6+ Kg8 Nf8 Qc2 Rb5 Qa5 Rb6 Qa1 Nh7 Bc1 Qe1 Bf4 Nd7 Ndc3+ Kc4 Nb3 Bf8 Nbc5 e7 Nb5+ Kd5 Kf7 Qd2 Rb8 a8R Nba7 Bd3 Nb5 Raa6 Ra8 Ra4 Ra5 Qc3 Nba7 Ba6 Ba8 Rc4 Ra3 Ra4 Nd2 Bb7 Ne5 Bc6 Bb7 Kd4 Ba8 Bb5 Bg2 Bc6 Nde4 Bb7 Nec6+ Kd5
n4Bb1/3b1QB1/n4b1P/1P1r3R/N1r2nkp/4Kn1P/R4R1q/brN1n1b1 b - - 0 1 illegal: Other
1n1Knb1B/1r1BnN1b/6PN/5Q1r/r2N1r2/2kP2b1/bPprb2q/2RR4 b - - 0 1 illegal: Other
bn3N2/1n2PN1P/2k1Bnr1/3RR1pn/rBn2N1b/3qb3/1Pb3Kb/3Q3r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 f6 dxc4 Qc2 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 e4 a5 d4 f5 h4 c5 h5 f3 e5 c3 h6 a3 h7 c4 d5 f4 d6 g3+ Ke1 a4 e6+ Kc6 d7 g2 Kf2 a2 Qe1 a3 Be2 c2 Qd2 c3 Bf1 Bb7 Qd4 Nf6 Ba6 Rg8 Bd3 Be7 Qb4 Ra4 Qb3 Ba8 Nh3 g1B+ Kf1 f2 Bd2 c1B Bc2 Bh2 Bg6 c2 Ba5 Be3 Bb6 c1N Ba7 Ne2 Ng5 Ng3+ Kg2 f1N Kf3 Nd2+ Kg2 Nc4 Rg1 Ngh5 Bf5 g6 Nc3 f3+ Kh1 f2 Kg2 Rg7 Rad1 a1N Bc5 a2 Nd5 Rg8 Qd3 Nb3 Nf7 a1R Nf4 Nba5 Rge1 Nb7 Bb4 Rb1 Rd2 Rba1 Ree2 Rh1 Qb3 Rg7 Qd1 Rg8 Rd5 f1B+ Kf3 Bh3 Re1 Bg4+ Kg2 Be2 Bg4 Bd3 Re2 Bc2 Bh3 Bd6 e7 g5 Be6 Rg6 Re1 Bdc5 Re2 Bf2 Ree5 Bce3 Nh8 Rg8 Nhg6 Bh4 Nf8 Rg6 Qd2 Qb6 Qd1 Qd4 d8N+ Kb6 Rf5 Qd3 Nf7 Kc6 Rfe5
1qB1r1nK/3PBPn1/1N2bb1p/b1PR1r2/3nN3/1Q2r3/n2N4/bRk1nb2 b - - 0 1 illegal: No proof kernel
Rb1q2qB/n2k4/2NN1R2/p3qbq1/4PqPr/2br1r2/2PQ4/1K1BRnq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 a5 g4 f5 b4 d5 e4 h5 b5 h3 b6 h2 b7 a3 Nc3 a2 Nb1 h4 Nh3 d3 Ng5 d4 Nh3 f3 Bb2 f4 Kc1 f2 Qe1 f3 Qb4 d2+ Kd1 Ne7 Bc3 Bf5 Be2 Kd7 Ba6 Nbc6 b8R Nd5 Qc4 Bd6 Re1 f1Q Qb3 h1Q Qb2 f2 Qc1 Qc4 Ng5 f1Q Na3 h3 Rb2 h2 Qb1 Bb8 Nf7 Qg5 Rb6 Rh4 Rb2 Na7 Nd6 Qff4 Ndb5 Qg1 Qc1 h1Q Rb4 Qhh2 Rab1 a1B Nd6 Qc8 R1b2 Qcg8 Be2 Qe5 Rb1 Qhf4 Nac4 Bb2 Bf3 Ba1 Rb6 Ne3+ Ke2 d1R Qd2 Nf1 Rc6 Bc7 Rb8 Bb2 Rf8 Bb8 Rf6 Ba1 Rc8 Bb2 Qc1 Rd3 Qd2 Ba1 Kd1 Bb2 Be2 Rf3 Rcf8 d3 Rc8 Ba1 Kc1 Bb2+ Kb1 Ba1 Qe3 d2 Bd4 Bc3 Bd1 Bc7 Rcf8 Re8 Qd3 Re6 Ra8 Bb8 Nc8 Rd6 Ne7 Rd5 Nc6 Rd6 Bb6 Rd4 Nd6 Rd5 Qe2 Rdd3 Bd4 Qee8 Qe3 Qee5 Be2 d1Q+ Qc1 Qdd2 Bd1 Qe7 Be5 Qdh2 Qd2 Qed8 Re6 Qhg3 Bh8 Qe5 Rg6 Q3f4 Rf6
1n2n3/KRq3r1/NB2rpbr/q4P2/3Q3b/RkN4r/1B1r1P1P/b1r1B1q1 b - - 0 1 illegal: Other
rn3n2/P1b2Q2/6q1/1r1brq1p/R1P2B1q/KPk1rN2/1N5R/2r1RBnr b - - 0 1 illegal: No proof kernel
r3b1r1/P1kN2qR/1b1n3P/2PKn3/Nr3r2/bRr1B1q1/2np4/3r1QBB b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Kd2 g5 h4 e5 c4 d5 a4 Kd7 f4 b5 a5 g3 a6 g4 h5 d3 Ke3 d4+ Kd2 g2 f5 g3 h6 b3 f6 b4 f7 e3+ Ke1 d2+ Ke2 b2 Kf3 b3 Ke4 e2 a7 e1R+ Kd5 e4 Qf3 d1R Bg5 e3 Ra4 d3 Bf4 d2 Bg5 e2 Bf6 Nc6 Na3 b1R Rh5 b2 Qc3 Ne5 Bg7 Nf6+ Kd4 Rg8 Nf3 Qe7 Qd3 Rbc1 Rh3 b1R Nb5 Ne8 Rb4 g1B+ Kd5 g2 Nc3 Bb6 Na4 g1Q Bg2 Rf1 Bh1 e1N Qe2 Rf2 Qf1 Kc7 Rb3 Nd6 Rg3 Rc2 Bf6 Qh2 Rg7 Bd7 Bg5 Rc3 Rh7 Qg3 Bf4 Nc2 Be3 Be8 c5 Bg7 f8B Bh8 Bg7 Qf8 Ng1 Rf4 Nf3 Qe7 Bf6 Qeg7 Bg5 Rb2 Bg1 Rbb1 Nd4 Rb2 Nc6 Rbb1 Nb8 Rb2 Ra3 Rbb4 Nd7 Nec4 Bf6 Q7g4 Bgd4 Rcf3 Bg1 Bg7 Ba1 Bb2 Qg2 Ne5 Qf1 Qg7 Rb3 Ba3 Bad4 Rc3 Bde3
n2Nr2q/bK1b4/3rb1kr/8/1P2NbbQ/B1n1p3/1PP4R/R1rBq1rB b - - 0 1 illegal: Other
r4B2/4bQ2/2r3b1/P2qn1r1/KNpnP1B1/3PkR1b/3bNq2/BrR3rb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 a4 Kd7 h4 Kd6 h5 Kd5 e3 Ke4 a5 b5 h6 c5 h7 f5 Rh6 g5 Rh1 g3 Ra3 b3 Qg4 b2 Kd1 g2 Kc2 c3 Kb3 c4+ Ka2 b4 Rh6 c2 Rc6 Nd7 Rh6 Ne5 Ra6 Be7 Rf6 Bb7 Rh6 Qd5 Rb6 Nh6 Nh3 g1R Rb3 Rhc8 h8B Rc6 Qd1 f3 Qe2 g4 Qf2 g3 Na3 b1B+ Kb2 g2 Qe2 f2 Rb5 f4 Bg7 f3 Bf8 Nf5 Nf4 Nd4 Rc3 b3 Qd1 Qe6 Be2 f1Q Rd5 f2 Bg4 Qe1 Ne2 f1B Rd6 Qd7 Rf6 Qd5 Rf3 Qf2 Qe1 Rh1 Qd1 g1R Qe1 Bh3 Qf1 Qh4 Nb5 Qf2 Nc7 Rg3 Na6 Rhg1 Nb4 R3g2 Ka3 b2 Ka4 Rg3 Be6 Rg5 Bc8 Ba2 Bd7 b1R Bb2 c1B Bg4 Ra1 Rd3 Bb1+ Ra3 Bd3 Bc3 Rb1 Ba1 Bg2 Rc3 Bh1 Qh3 Bc8 Qh7+ Bf5 Qf7 Bg6 Nf4 Bf1 Ne2 Bh3 Na2 Bca3 Rc1 Kd3 Rf1 Bab4 e4+ Kc2 d3 Kd2 Rc1 Bc3 Rf5 Ke3 Nb4 Bd2 Rf3+
2Rb1nn1/2b3k1/1N1Rrnqp/KP3b1b/1P1N2R1/2B1nB2/6PQ/1rn1b2q b - - 0 1 illegal: Other
r2b3R/b1R1n1n1/1N1rP3/3b4/1KNQ4/1P2BBbp/1qN1q1P1/1bn1nk1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Bg7 Bc1 Bf8 Kd2 Ke7 c4 Ke6 e4 Ke5 c5 h5 b3 a5 c6 d5 c7 f5 Ra2 f3 Kd3 f2 Rb2 h3 Na3 h2 Qd2 h4 Rb1 h3 Kc2 d3+ Kc3 f4 Rb2 f3 Qc2 d2 Qb1 Kf4 e5 Kg3 e6 d1N+ Kc2 d4 Bh6 d3+ Kd2 Nd7 Be3 Bd6 Bc5 Ndf6 Bb6 Bb7 c8N Nc3 Nc2 a3 Na1 a2 Be3 a4 Qc2 a3 Qb1 Ne7 Rc2 Nh5 Be2 f1N+ Kc1 f2 Rd2 Bd5 Bh6 Ne3 Bg7 f1Q+ Rd1 Kf2 Kd2 Nc2 Bf6 Ng7 Be5 Ne1 Bf3 Ne2 Bf4 Nc1 Kc3 d2 Qf5 Qe2 Qb1 Kf1 Be3 Bg3 Nc2 a1B+ Qb2 a2 Na3 Rh5 Nb1 Qh8 Kb4 Rh4+ Kc5 Rd4 Na3 Rd3 Qf6 Bd4+ Kb4 a1B Nc2 Ba7 Nb6 Bae5 Qh4 Bc7 Qd4 Bd8 Ka5 Na2 Ra1 Nc1 Kb4 d1B Ra5 Bc4 Rh5 Bd5 Rh4 Qf8 Rh8 Qf6 Na3 Bc2 Nac4 Bb1 Be4 Qb2 Nf3+ Ke2 Rg1 h1N Rf1 Qe5 Rf2+ Kd1 Rc2 Qh5 Rc3 Ke2 Qe5 Bb8 Ncd2 Ba7 Rc7 Bb7 Ndc4 Kf1 Nd4 Qhe2 Nc2 Rd6 Bf3 Bd5 Qd4
kr1B2BN/1R2PP1K/8/qnRn1Qbb/b4n1P/1b2b1qr/1RnNp3/2n5 b - - 0 1 illegal: No proof kernel
2kq1bn1/3n1Rq1/2n1q2n/Nbp1PPP1/5R1B/NQR2br1/1K3b1b/1B1r4 b - - 0 1 illegal: No proof kernel
q1k4q/8/1Rr1qQpN/Nb2bR1q/3N2P1/KnqnbB2/2P1nBPr/3n4 b - - 0 1 illegal: Other
2R1q1n1/R2r3p/B2q3b/bP2brq1/1PKP3r/B1BN3k/1b2bqQn/N7 b - - 0 1 illegal: Other
Q3qN2/P1b2kPB/1PpR1qN1/q1B3n1/2q5/2Rb4/2b1rrbK/1q1n1Nn1 b - - 0 1 illegal: No proof kernel
B4K2/r1n4p/1bNQ1b2/PP1Pbn1N/n1n3kR/1rN1n2n/bR4qn/2B5 b - - 0 1 illegal: No possible last move
3r1n2/2b2Rn1/1N1nqB2/npK2bPk/2bB1Pr1/4rBq1/1QPq1R2/5r1N b - - 0 1 illegal: No proof kernel
n2nqR1K/r3r3/1bBBqQ1B/Pn1NqNb1/R1PP4/1bb2p2/4kr2/6n1 b - - 0 1 illegal: No proof kernel
2R2R2/N1N1BR2/kPpr1n2/r1r2BK1/1b1nq1P1/3rP2b/3q1bq1/3Qbn2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 b4 Kb7 d4 f5 d5 a5 b5 h5 d6 a3 b6 h3 g3 h4 d7 c3 Be3 a2 Bg2 a4 Bc5 c2 Be7 c1R Qe1 h2 Nd2 h3 Ba3 Bb4 Ne4 Nf6 Nd6+ Ka6 Bf1 Rc5 Bb2 a3 Nc4 Nc6 Qd1 Nd4+ Kf2 f3 Ke3 c6 Kf4 f2 Bc1 Rh6 Rb1 a1B Qd3 a2 Rb3 Bac3 Nf3 a1B Qd1 Be1 Ng5 Bb2 Rg1 h1R Rf3 h2 Bh3 f1Q Nd6 Qg2 Ne6 B2c3 e3 Bf2 Bg4 Bce1 Kg5 f4+ Bf5 Ra7 Rf1 Rg1 Ng7 h1Q Nb5 Ng8+ Kg4 Rd6 Ne8 Nf6+ Kg5 Qh7 Bd2 Qhe7 Bc1 Qe4 Bb2 Rh1 Ba3 Rh7 Rh1 Re7 Rh7 Ree5 Rh8 Rc3 Rh7 Rec5 Rf7 Rd3 Rf8 Bg1 Rf2 f3 Rf1 f2 Nec7+ Kb7 Rf7 Ra4 Na7 Raa5 Nd5 Ka6 Rf8 Qde8 d8R Be6 Rc8 Qd8 Bg6 Bh3 g4 Bh2 Bf5 Bg3 Rh1 f1N Rh2 Qd2 Rf2 Qde8 Rf3 Bgf2 Rf4 Qg2 Nc7+ Kb7 Re4 Qe6 Re5 Qed5 Re7 Qde4 Ref7 Re6 Bb2 Rd5 Qb3 Bc3 Na8+ Ka6 Ba3 Ree5 Bc5 Bb4 Be7 Rd6 Qd1 Rec5 Nc7+
4b1b1/N1b2nPr/qqpPR1K1/r3B3/N4kPb/2NB3n/2R5/1nr1r1Qq b - - 0 1 illegal: Other
1k4N1/4Pb2/1qB2N1B/1nRrbK2/3Q1n1P/1q2pb1P/3r2qR/2R1nnrr b - - 0 1 illegal: Other
K1nr4/1Pq1q1pr/1PBq2R1/B2kb2q/1Pr3nR/Q5n1/N3b2b/1B3Nr1 b - - 0 1 illegal: Other
1KbrqB2/p2N1N1k/P3n1bN/r1Q3bB/5n2/P2Pqrn1/1RR5/2n1q1q1 b - - 0 1 illegal: Other
RqN2Bk1/1b6/8/rn1PNP2/r1qpq1q1/rr5B/2Pb2N1/q1nR1qQK b - - 0 1 illegal: No proof kernel
1n1n1N2/n1k4B/6N1/P2q1p1r/1BbrB3/brrP3Q/RR2KnPq/2r2r2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 a4 c5 e5 h5 a5 b5 d3 f5 e6+ Kc7 e7 f3 e8B c3 Bh6 f2+ Ke2 b3 Qd2 c4 Na3 c2 Qc1 b2 Bg5 b1R Bc6 c3 Bf3 b4 Rh3 b3 Ke3 b2 B1e2 f1R Bf6 Nh6 Be7 Nf7 Qe1 c1R Rh1 h3 Rh2 h4 Bf6 c2 Bb7 Be6 Bg7 Bc4 Qd2 Rh5 Nf3 Qd5 Rh1 h2 Bc3 h3 Ng5 Nd8 Nh7 Ra7 Rg1 h1N Bb4 h2 Ra2 Nf2 Bc6 Be7 Nf8 h1Q Be8 Rb7 Bf3 Qh2 Bg6 Ra1 Qe2 b1N Bh7 Nc3 Be4 Nb5 Qf3 Na7 Qh3 Rab1 Ke2 Rb3 Rb2 Rc3 Ra2 Rb1 Rh1 c1R Rg1 Rbb3 Rh1 Bb5 Nc4 Bd6 Ne5 Bc4 Ba3 R7b4 Neg6 Ba6 Rg1 Rd4 Bb4 Bc4 Ke3 Rfd1 Re1 Be7 Ree2 Rf1 Reb2 R3c2 Bc3 Ba3 Bb4 Rcc3 Ke2
KBb2bQr/2NPp3/1PN1n3/2rb3b/2bq2R1/2r3b1/n1r1k1NP/2qB2R1 b - - 0 1 illegal: No possible last move
r1B5/2qNb1bP/3nbQ2/bbPr1p2/R3PK1R/1b5N/3k3B/n1b2Nbb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 f5 c5 f6 cxd4 Kf2 exf6 Ke1 f5 Bd2 f4 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 b4 Kf6 c4 Kg5 e4 d5 h3 a5 b5 f5 c5 d3 b6 f3 Ke3 f2 b7 g3 Qd2 g2 Ba3 Qc7 Qb2 d4+ Kf3 d2 Qc2 d1B+ Qe2 d3 Bc1+ d2 Na3 Be7 Bb2 Be6 Bc3 Na6 b8N Nb4 Bb2 Nf6 Nc4 a3 Nb6 a2 Bc1 a4 Nc6 a3 Na7 Ne8 Na4 Nd6 Nb2 Bdb3 Ke3 d1B Qd2 Rhd8 Nd3 Bf3 Qd1 Nc2+ Kd2 g6 Ne1 Kf4 h4 g5 h5 g4 h6 g3 Ba6 f1B h7 Bb5 Bc8 Rd7 Rb1 a1B Nc6 a2 Nb8 Bg7 Bb2 Rd8 Nd7 a1B Bd4 Bb2 Ra1 Ba3 Ra2 Na1 Nc2 Bb4+ Bc3 Ba5 Nh3+ Kg4 Ra4 g1B Rh2 g2 Ne3+ Kg3 Qe2 Bf2 Rh1 g1B Nf1+ Kg2 Qc4 Be3+ Kd3 Bc1 Be5 Bfd1 Bh2 Kf3 Nf4 Kf2 Nh3+ Ke1 Nb6 Bc6 Nd7 Bf3 Qc3+ Kd1 Qf6 Ke1 Ne3 Bb5+ Kd4 Bg2 Ke5 Kd2 Kf4 Bf2 Rg1 Bh1 Rg4 Bg1 Rh4 Nb7+ Ne5 Rd6 Nd7 Rd5+ Qe5 Nd6 Qb2+ Ke1 Qf6 Kd2 Nf1+
Kb1R1n2/bBP3P1/PkN4n/p2Q4/3qr3/1rN2qB1/q1RbR1q1/1b2nn2 b - - 0 1 illegal: No proof kernel
2r1n1nN/2p1N2P/B1Bb3b/q5q1/1b1k1B2/1b4P1/Rn1rQP2/1KRn1q1q b - - 0 1 illegal: No proof kernel
2b1K2R/7N/2n1npnb/Q1N1nPnP/qN1q4/B6R/1p1P2rk/B2qb1r1 b - - 0 1 legal: proof: e4 b5 g4 d5 b4 dxe4 a4 bxa4 g5 c6 b5 h6 b6 hxg5 Be2 g4 Bb5 cxb5 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 e5+ Ke3 g5 h4 g3 c4 f6 b7 g4 f5 a3 h5 b4 Qe2 b3 Qf2 g2 Qf4 a2 Qg3 a4 Rh2 a3 Nf3 g1Q+ Rf2 Nc6 Nd4 Qd1 Qg2 g3 Qh1 g2 Rf4 g1N Ne6 Bh6 Nd4 Nh3 Qg2 Ng5 Qf2 Nge7 Nc3 Rg8 Rh4 Ng6 Nd5 Ra7 Rb1 a1Q Nb4 a2 b8B+ Rc7 Ba7 Rcg7 Ne6 Qa5 Qg3 Qa4 Nc5 Qb2 Rh3 a1N Nbd3 Qc3 Ba3 Qb2 Nb4 Nc2+ Kf2 N2d4 Qc3 e3+ Kg2 e4 Kg3 Nf8 Kf4 e2 Bb8+ Ke7 Be5 e1N Rc1 e3 Ra1 Ngh7+ Ke4 e2 Kd5 Nef3 Rc1 e1B Rb1 Kf7 Kd6 Rg2 Kc7 Ng6 Rc1 Ba6 Kd7 Ne6 Ra1 Rg7 Rc1 Kg8+ Ke8 Nhg5 Bd4 Kh7 Be5 Qbc2 Qa1 Bb7 Qa2 Qb1 Ba1 b2 Rc3 Qe4 Rd3 Bh4 Rd8 Qd4 Nb3 Nf7 c5 Rg1 Rd6 Ngh8 Nd3 R7g2 Rd5 Bf4 Bb4 Kh6 Kd7 Ncd8+ c6 Kg5 Nbc5 Qb5 Qa5 Kg4 Ba3 Qba4 Nb4 Be1 Ke7 Bh6 c7 Ng7 c8N N3e5 Nd6 Nge6 Nde4 Bc8 Rd7 Nhg6+ Ke8 Ndc6 Ng5 Kf4 Nh7 Kg4 Nf8 Nfg5 Rh7 Kf4 Rh8 Kg4 Rh4+ Kf3 Nh7 Kg3 Rf4 Kh3 Rf3+ Kh2 Rh3+
bbk3K1/3N1nR1/NQ2P2P/p1r1b1pq/q1qnBr2/2n1B3/1bR2P2/2b1N3 b - - 0 1 illegal: No proof kernel
4qkbQ/2bB4/q1b1pRPr/1RK1P3/2n5/1qnNPrp1/qr2q3/1BN3N1 b - - 0 1 illegal: Other
1n3nK1/BQnN2p1/pnB1Nrn1/1q1Pb1k1/4q1P1/2R3rb/R3RP2/4qb2 b - - 0 1 legal: proof: e4 d5 c4 dxc4 a4 b5 h4 bxa4 h5 f5 h6 fxe4 Qf3 Qd6 Qg4 Qxh6 Qd1 Qh2 Ke2 Kf7 Ke3 Kf6 Kd4 h5 Kd5 e5 b4 c5 d4 h4 b5 c3 g3 c4 b6 a6 b7 e3 Bb2 e4 Qd2 c2 Ra2 c1N Qa5 e2 Ba3 e1Q Nc3 e3 Rc2 e2 Qc5 h3 Ra2 Nb3 Qc7 Nd2 Rb2 Bd6 Rb4 Be5 Nb5 c3 Qc6+ Kg5 Qc5 c2 Qa7 c1N Qc5 Ncb3 Nc3 Nc4 Qa7 Nc5 Nb5 Ne6 Bb2 a3 Qb6 a2 Ba1 Nf8 Bg2 Ra7 Bb2 a1N Nc7 Nc2 Rb3 N2a3 Rc3 Nb5 Ba3 Qb1 Bc5 e1Q Bf3 Qg2 Ne6+ Kf6 Be4 h2 Nf3 Rh3 Qc6 Ra8 Ba7 Qb3 Rf1 h1B Qb6 Bd7 g4 Rg3 Qc7 Qa4 Rg1 Qgf1 Qc6 Bg2 Qb6 Bh3 Rh1 Nc6 b8R Qg2 Re8 Nb8 Qb7 Ne7+ Kc5 Nb6 Bc6 Qgf1 d5 Neg6 Re7 Qee4 Re8 Qfe2 Ra1 Nc7 Ra2 Qe1 Re7 Bd4+ Kd6 Qb5 Ne5 Be8 Nd8 Kg5 Nd7 Nh8 Re6 Be5+ Ke7 Bg6 Rf6 Bf5 Rd6 Nhg6+ Kf7 Qec4 Nf6 Bd3 Kg8 Qce4 Re6 Bdf1 Nd7 Qea4 Rca3 Bd4 Rc3 Nh7 Nf8 N8d7 Ree3 Be5 Rb2 Qe4 Ree2 Rb8 Qa8 Rc8 Ra2 Nb8 Nb7 Rd8 Nc5 Rd6 Nfd7 Nhf8 Qb7 Rf6 Ne6+
3B4/npb4B/2rp1N1N/q1R2K2/rP2rRPr/n6q/2r1bQ1P/2Nb1qk1 b - - 0 1 illegal: No proof kernel
2rRB3/P2b1pp1/nP3R2/rnN5/2Nk2r1/Bn1qrP2/KN6/b1bQ2rq b - - 0 1 legal: proof: e4 a5 c4 h5 b4 b5 g4 hxg4 e5 bxc4 b5 d6 Qb3 dxe5 Qb2 e4 Qb4 axb4 Kd1 Kd7 Kc2 Kd6 Kb2 Kd5 h4 c5 d4 e5 a4 c3+ Kb3 c2 h5 g3 h6 e3 f3 c4+ Ka2 e2 h7 e1Q a5 b3+ Kb2 g2 b6 e4 a6 e3 Ra5+ Bc5 Rh4 c3+ Ka1 b2+ Ka2 e2 Rf4 Nf6 Rb5 Bd7 Nd2 b1R Nc4 Ne8 Nh3 g1R Rf6 Nc7 Ba3 c1B Nf2 c2 Nd1 Rb4 Ndb2 Ra7 Ra5 Nb5 Bh3 Rg8 h8Q Qf1 Qh7 e1R Qd3 Re3 Qd1 Bd6 Bf5 Be5 Ra4 Ra8 Ra5 Re8 a7 Na6 Bh3 Rc8 Bf5 Rh8 Bh3 Rh5 Ra4 Bc6 Bd7 Qh8 Be8 Qd3 Ra5 Bd7 Ra4 Rhg5 Ra5 Qh1 Ra4 Nd6 Ra5+ Rb5 Ra4 Ra5 Rb4 Kc6 d5+ Kc5 Rb5+ Kd4 Rb3 Nb5 d6 Be6 d7 R5g4 d8N Bd7 Rc3 Bd2 Nb7 c1N+ Ka1 Nb3+ Ka2 Bc1 Nc5 Kd5 Rc2 Bd4 Rh2 Bc3 Rh8 Kd4 Nba4 Ba1 Nab2 Bf5 Bd7 Be6 Rd8 Bf5 Be8+ Bd7 Qe1 Re5 Qe2 Re3 Qd1
2r1B2n/6Qn/n1B1k3/2q1b2R/P1N3p1/PP1RNrnp/n1nb1B1n/1b1K4 b - - 0 1 illegal: Other
1r1qn3/4q1Q1/2P2R2/1Pp1qBBn/1p4bK/Rnb1PN2/rN2nr2/k3Rb2 b - - 0 1 illegal: No proof kernel
N3rB1b/k6B/1rPb4/P2q4/Pqnb2K1/p2n1Rp1/r2RN2q/1NQ1n2b b - - 0 1 illegal: Other
3nQ3/k2BN3/2P1rp2/nb1r1NBK/R3qr2/P2RPp2/4r1N1/2q1qnbb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kf2 d5 Kf3 Kd7 Kg4 Kc6+ Kh5 Kb6 g4 h3 c4 d3 g5 f3 a3 f6 c5+ Ka7 g6 b5 g7 b3 Ra2 b2 Rh2 b4 Qd2 b3 Qc3 d2 Qe3 d1Q Rf2 d4 Bd2 h2 Qg5 h1R+ Nh3 d3 Qg3 Qd4 Ba5 d2 Qg6 Qc1 Ra1 d1R Ra2 Bd7 Qd3 Ne7 g8N Qe4 Qc3 Bb5 Qc2 Nbc6 Bb4 Re8 Nh6 Rd5+ Nf5 Na5 Be1 Rh2 Bb4 Nec6 Qd1 Nd8 c6 Bc5 Qe1 Re6 Rg2 Bg1 Nc3 b1N Rd2 b2 Rd3 Nd2 Rg4 b1Q Bf8 Rf2 Nf4 h6 Bg2 Nf1 Bh3 Rg8 Rh4 Rg4 Ng2 Rf4 Bd6 Rg4 Bg3 Rf4 Rg4 Qbb4 Bh4 Qbb1 Bg5 Qa1 e3 Re2 Qd2 Qe1 Qb2 Qac1 Qb4 Qc2 Qf8 Qcc1 Kg6 h5 Qe8 h4 Kh5 Rd7 Nd5 Rdd6 Nde7 Rd7 Rg3 Rd5 Bg4 h3 Rd4 h2 Rd3 h1B Bh3 Qec4 Rg4 Q4c2 Ng7 Rff5 Ra4 Rf4 Ngf5 Qc4 Bg4 Qe4 Ng3 Ree5 Bd7 Re6 Ngf5
2nR1n1q/n1b3nr/P2Bb1qp/N2RQ2B/K1kr2Pp/7b/2P1RNq1/1r6 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 f6 cxd4 Bd2 exf6 Be3 f5 Bc1 f4 Kd2 Ke7 g4 Ke6 a4 Kd5 e3 b5 a5 f5 a6 f3 Rh2 f4 Qe2 b3 Ra2 h6 Ra5 f2 Qe1 d3 Kc3 f3 Ne2 d2 Na3 d1N+ Kd2 b2 Nb1 Ne7 e4+ Kc4 e5 d5 e6 d4 Ra2 b4 Bh3 f1B Qf2 b3 Nf4 d3 Nh5 Rh7 Ra1 Ne3 Ng3 N3f5 Nh1 Ng7 Nc3 b1R Rg2 b2 Ra5 Nd7 Qe2 f2 Qe5 Rb8 Rh2 Rb4 Bg2 Qe8 Bf3 Qg6 Na2 Bh3 Bc6 f1Q Re2 Qg2 Nf2 Ra4 Rd5 Rb4 Ke3 d2 Ba4 d1N+ Kd2 Nc3 Bc6 Nb6 Be8 Nb5 Bf7 Ra4 Nb4 Na7 Nc6 Bd7 Be8 Nec8 e7 Be6 Bf7 Rb4 e8R Bd6 Rd8 Bc7 Be8 Nd7 Bf7 Ra4 Na5+ Kb4 Be8 Nf8 Bf7 Rba1 Be8 b1Q Bf7 Qb2 Be8 Qf6 Bh5 Rb1 Kd3 Qf7 Bf4 Qg6+ Kd2 Ka3 Bg3 Qb8 Kc3 Rd4 Qg5 Qa8 Bd6+ Ka4 Bc5 Kb5 Qe5 Rc1 Kb3 Rb1+ Ka3 Qb8 Nb3 Kc4 Ka4 Qf7 Bd6 Qg8 Rd2 Qb6 Re2 Qh8 Ra5 Qbc6+ Rb5 Qce4 Rd5 Qg6 Na5+
Kb1B4/2N3k1/pqB5/N2nr1nP/1b1P2p1/1n1rRQq1/Nr2nP2/R5qb b - - 0 1 legal: proof: e4 b5 c4 d5 g4 dxc4 a4 bxa4 e5 h5 e6 hxg4 Be2 fxe6 Bd3 e5 Bf1 e4 Ke2 Kf7 Ke3 e5 b4 g5 h4 c5 d4 g3 h5 c3 b5 a3 b6 c2 b7 g2 Rh2 a2 Nf3 g1Q Bh3 c4 Qe2 g4 Qd3 c3 Qa6 Nc6 b8N Nf6 Nfd2 Nb4 Bg2 Bb7 Bf3 Kg7 Bd1 Qb6 Bb2 c1Q Nc6 c2 Qc4 Nbd5+ Ke2 e3 Kd3 e2 Qb3 e1R Kc4 e4 Nf3 e3 Be2 Bd6 Nbd2 Ne4 Nb1 Bb8 Bc3 Qg3 Rh3 Ng5 Na5 a6 Bd3 e2 Be4 Rd1 Be1 Re8 Nc3 Re5 Bd2 Nf6 Bc6 e1B Be3 Nd5 Bd2 Ne6 Bg5 Rd3 Bd8 Ng5 Qa3 Qcb1 Qb3 c1N Qd1 Ne4 Ng5 Ne2 Qb3 Bd2 Qa3 Qbg1 Ne6+ Kg8 Qb3 Ng5 Nc7 Kg7 Qa3 Ra7 Qb3 Ba8 Qd1 Rb7 Qb3 Q3h2 Re3 Qhg3 Qa3 Qb3+ Kc5 Qb6+ Kd6 Be1 Kd7 Bd2 Kc8 Be1 Rd1 a1N Na2 Nb3 Ra1 Bb4 Qc1 Qc5 Qf1 Rb5 Qg2 Qb6 Qh1 Rc5 Qf3 Rc2 Qf5 Rb2 Qf3 Ndf4 Ba4 Be4 Be8 Nd5 Bc6 Qc5 Kb7 Qb5+ Ka8 Qb6 Qf4 Bh1 Qf3
2nBN2r/q3P1qN/1b3R2/rk1BbP2/RR4rq/pPqp1nn1/6K1/3b2Q1 b - - 0 1 illegal: No proof kernel
q7/Qqp5/r2RP3/1pB3b1/r2rrnq1/nPkb3n/R1N4P/N1BB2bK b - - 0 1 legal: proof: g4 d5 f4 a5 c4 dxc4 g5 e5 g6 exf4 b3 a4 Nh3 a3 Ng1 hxg6 Qc2 g5 Qc3 g4 Qb2 axb2 Kf2 Kd7 Kg2 Ke6 a4 Ke5 e4 Kd4 e5 g5 a5 f5 e6 f3+ Kg3 c3 a6 f4+ Kf2 c2 a7 g3+ Ke1 g2 Kf2 g4 d3 g3+ Ke1 f2+ Ke2 f3+ Kd2 Be7 Ra2 Nf6 Ra5 Nc6 Ra4+ Nb4 Ra6 Rh4 Rc6 Nfd5 Rc5 Re4 Rb5 Nf4 Rh5 Nbd5 Rh4 Bg5 Be2 f1Q Bd1 f2 Na3 b5 Rh7 Bb7 Rd7 Bc6 Rd6 Qb8 Bh5 Qb7 Bd1 Rd8 a8Q Be8 Nc4 Nh3+ Ne3 Bg6 Qa6 Ra8 Qa2 Ra6 Ne2+ Ke5 Nd4 g1Q Qa5 Qfg2 Ke2 b1N Qb6 Na3 Qa7 Q2f1+ Kf3 g2 Kg3 Ndf4 Kf3 Qe2+ Kg3 Qge1 Rg1 Qc3 Re1 Qh5 Re2 f1R Rd2 g1B Rf2 Ne2+ Kg2 Qcc6 Kh1 Qg4 Bb2 c1R Qb6 Rc4 Qa7 Rf4+ Rg2 Qe8 Bc1 R1f3 Rf2 Nc3 Ra2 Be4 Ndc2 Qh8 Na1 Qha8 Nd5 Ne2 Ne3 Rca4 Nec2 Bf5 d4+ Ke4 d5 Kd3 Rd8 Kc3 d6 Rfd4 d7 Nef4 Rg8 Qe8 d8B Bd3 Be7 Qea8 Rd8 Re3+ Rd5 Re1 Bc5 Ree4 Rd6
N2R1nn1/1PK1pP1R/N3bR2/k3prr1/B6b/Bn2bqqP/rq5b/1Q6 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 bxa4 g5 f6 e5 fxe5 g6 hxg6 Nd2 g5 Nb1 g4 Ke2 a5 Kd3 d5 f4 Kd7 b4 Kc7 c4 Kb6 f5 g5 f6 g3 h3 g4 f7 a3 b5 g2 Ra2 a4 c5+ Ka5 c6 g3 b6 Bh6 b7 Be3 c7 Be6 c8R Nd7 Nf3 g1B Qc2 g2 Qc4 Bh2 Rc6 g1B Re2 a2 Ne1 a1N Rf2 a3 Rb2 a2 Qb3 Bgf2 Rg1 Bh4 Rg7 Rh5 Rh7 Rg5 Na3 Nf8 Rd2 Rf5 Qc2 Nb3 Qb1 a1Q Nb5 Qb2 Nc7 Qd6 Nc2 Qda3 Nb4 Rg5 Ke2 d3+ Kf3 d4 Ke4 Rf5 Rd1 d2 Bb5 d3 Nba6 Rg5 Ba4 Ra7 Rf1 d1R Na8 d2 Rf6 Rf1 Rd6 d1Q Rd2 Rff5 Rd8 Qf2 Bb2 Qg3 Bc1 Qa1 Ba3 Qf1 Qd3 Qb2 Qb1 Bc8 Kd5 Be6+ Kc6 Qff3+ Kc7 Bc1 Bd6 Bd2 Bd7 Be3 Nc5 Kb4 Bc6 Ra2 Na6+ Ka5 Ba4 Qa1 Bc5 Qb2 Ba3
2n5/P1BKP2b/Q2b2b1/rN1RrRk1/1pprn3/2b1qB2/P2R3N/q5nq b - - 0 1 illegal: Other
1Bqr4/4b1rn/2BRR1n1/r2n1Pb1/2kr3p/Q1Pp2P1/1NB4r/r4NKb b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 e6 cxd4 Rh2 fxe6 Rh3 e5 Rh1 e4 a4 Kf7 f4 Ke6 Kf2 Kd5 f5 e5 a5 h5 a6 b5 a7 d3 g3 d2 Rh2 h3 Ra4 h4 Bb2 e3+ Ke2 b3 Ra5 e4 Bf6 b2 Ra3 b4 Ra6 b3 Ra4 Bb7 Bc3 Nf6 Qc1 d1R Bd2 Nc6 Bg2 Ne7 Na3 b1R Bf1 b2 Bg2 Ra1 Bc3 b1N Bf3 Nh7 Bg4 Ng6 Ra6 Be7 Rb6 Rd4 Kf1 e2+ Kf2 e1R Qh6 e3+ Kf3 e2 Kf2 Qc8 Nf3 Rd8 Qf8 d6 Bb2 Nc3 Nc4 Reb1 Nfd2 e1B+ Kf1 Kc5 Bc1 d5 Re2 h2 Nb2 h1R+ Kg2 Rh2+ Kg1 Ra5 Nf1 Bd2 Ree6 Bg5 Rbd6 Rba1 Bd1 Rb8 a8B Rd7 Nd3+ Kc4 Be3 Rd8 Bf4 Bc6 Be5 Rb4 Bb7 Rg4 Ba8 d4 Bf4 Bg2 Bc6 Nd5 c3 Bh1 Bc2 Rba4 Rd7 Rb4 Bb8 Rb7 Rdd6 Rbd7 Nf2 d3 Nd1 Rd4 Qh6 Bef6 Qf8 Rf7 Qe7 Rg7 Qa7 Be7 Qa8 Rb5 Qa3 Ra5 Nb2#
1n3n1r/1K1n3n/n1rB1Np1/k1P1r3/2Qq1Pbb/2p1bBR1/2P1R3/3nN1B1 b - - 0 1 illegal: Other
RQ2b2N/n2rR1Bn/1p2K2n/1n2n3/B1P3nB/1P1rq1br/1P4p1/k2N3b b - - 0 1 illegal: Other
Kn3br1/R7/p3N3/1qrP1kPQ/1pbr1b2/3N2P1/1Br1b1Br/1Nn1Rb2 b - - 0 1 illegal: Other
b2R4/Bp1bP2b/2n1P1qN/k1rnnn1R/8/Kpb1QB1N/2b1rNP1/6n1 b - - 0 1 illegal: Other
1bnN2q1/1r3B1b/N4prB/6PP/1QK4n/2pn1n2/nB3P1r/bkrR3R b - - 0 1 illegal: No proof kernel
RK1Bqr2/Bb1q1n1N/3Pb1B1/Pb4kP/3R1n2/4b2b/p2p1Nrr/Q4b2 b - - 0 1 illegal: No proof kernel
1nr2q2/2rnn1pK/bR1QR1rP/2bRb3/nP1B4/1pN3P1/N7/rk4rB b - - 0 1 illegal: No proof kernel
1b1b4/2rqP1kN/N3n2n/qbP5/nr1P1n1B/K1pp2Qn/4B2R/2n1NR2 b - - 0 1 illegal: No proof kernel
3RRNn1/2Q1Pq1P/3b2pb/n6k/3bB1rP/Brr3p1/1B2K1n1/n2n2Nb b - - 0 1 illegal: Other
b1rN2n1/1n1P2RQ/BPPr1B2/BN2k1b1/1bb5/qnp1pK1b/R2r2n1/8 b - - 0 1 illegal: No proof kernel
r4nrR/1B1p1N1R/p1P2b2/1qrn4/3PBkR1/NQ4bP/bKn5/2r1b2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 b4 hxg4 f5 c5 b5 e6 Ba3 exf5 Bb4 cxb4 Ra2 f4 Ra3 Rh4 Ra1 Rh8 e4 Ke7 d4 Ke6 Kd2 f5 Kc1 g5 c4 g3 h3 a3 b6 a2 b7 b3 e5 a6 c5 f3 Qe2 f4 Qc2 g4 Bb5 f2 Qg6+ Nf6 Nd2 f1R+ Kb2 g2 Re1 a1N Rb1 g3 Nc4 f3 Qh6 Kf5 e6 f2 e7 Rc1 e8B f1R Rh2 Qa5 Qh7+ Kf4 Bg6 Rg8 Ba4 Nc2 Be4 Bg7 Ne5 Qb5 Rh1 Nd5 Ra1 Bf6 Nc4 Nc6 b8R Nd8 Qh8 Bb7 Nf3 g1B Qh7 g2 Nfe5 Bf2 Na3 g1B Nf7 Bh2 Rg1 Ne6 Rg7 Bhg3 Qh5 Be1 Qd1 Nf8 Rh7 Qa5 Bc6 Qb5 Re8 Rf3 Re5 Rc3 Reh5 Rc4 Rh8 Rc3 R5h7 Ne7 Qd3 Bef2 Rg7 Rg1 Rc1 Bh2 Kb1 b2 Bg2 Rc4 Ka2 B2h4 Qb3 b1B+ Kb2 Ba2 Rd1 Rf1 Rd3 Rc1 Rgh7 Be1 Rg3 Rc3 Rgg7 Bhg3 Bcf3 Bd5 Bh1 Bc4 Bc6 Bd5 Bb7 Bg2 c6 Nd5 Rg6 Rc5 Rgg7 Bf1 Bf3 Bg2 Be4 Bh1 Rg4+
6bk/2P1r1pR/KB5r/2rPbB2/NN3q1P/N4bn1/p2RQ1n1/1n1n1n1b b - - 0 1 illegal: No possible last move
1R4n1/N1p1B3/1b4P1/1P1q3R/qrqqn1qq/1bQ3rP/Bp4NK/2kN1b2 b - - 0 1 illegal: No proof kernel
3n3b/kPq4b/rp1R3r/p1BPb1Nn/1Pb2b2/1q1B1B1K/4r2N/R1b2Q2 b - - 0 1 illegal: Other
1K2n1b1/N4n1b/2b1n3/2qpP1p1/4qb2/NP3RR1/k1Q1rPRB/bn1r3B b - - 0 1 illegal: No proof kernel
2Nq4/1kQ1n1BB/6q1/qqP1b1P1/q1pR3N/1rN1pR1P/b1n1rn2/2K3n1 b - - 0 1 illegal: No proof kernel
R1N1Qbq1/N1r2pn1/1K1B1r1P/3R1rN1/2pP4/qbn3rP/4B3/2r2nnk b - - 0 1 illegal: Other
nb4Q1/1b1Pn1r1/R2RN2k/3p1Nqr/p2bbP1B/P2N4/Brq3bK/r7 b - - 0 1 illegal: No proof kernel
2Rnb3/Nr2B1K1/1n2rp2/bP2qqR1/R1n2Q2/1B1P1pN1/P2n2bk/1b1q4 b - - 0 1 illegal: No proof kernel
n2RRq1n/K6n/bPpPN3/1qr1n2Q/3BqbNN/bp1r2P1/k1B4b/8 b - - 0 1 illegal: No proof kernel
4br2/1kqN4/P1n2q2/1Bb1rNn1/R1q2p1Q/PPB1Nr2/3pn2q/RK3n2 b - - 0 1 illegal: Other
1qB2rN1/R2b1NB1/pPq1n3/4rq2/kp1r4/b7/QP1Rb2P/1r1q1nKR b - - 0 1 illegal: Other
b2n4/2K1Rp1p/5r1P/2Br2Q1/b2NN1b1/n1rRbNn1/3Prq1P/k2q3B b - - 0 1 illegal: Other
4kBNK/2b1p1P1/r3B1r1/2pR4/bqbqr1PP/3B3b/1n2qQ1q/1nRN4 b - - 0 1 illegal: Other
3n2K1/brB1p1p1/3qnq1r/4N1P1/R3bQP1/Rb1NP1q1/bkqn3B/7B b - - 0 1 illegal: Other
1k1B1Brb/3PN1b1/qB1q3N/b1r2r1b/1n1RQ1pK/n1p1P1P1/5q2/Rr6 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 f5 b5 f6 bxa4 g3 h4 Ra2 h3 Bg2 hxg2 Ra1 exf6 Nh3 f5 Ng1 f4 Kf2 Kd7 h4 g5 d4 c5 b4 Kc7 e3 f5 d5 a5 b5 a3 h5 a2 h6 c3 h7 c2 Na3 a4 Bb2 c1B Qd3 f3 Bc3 c4 Be5+ Qd6 Bg7 f4 Bh6 Nc6 b6+ Kb8 b7 Ra5 Rb1 a1Q Rh3 Na7 Rb2 Bg7 Ra2 Nf6 Qb3 Bd2 Qd1 Rc5 Nb5 a3 Ne2 g1R Nec3 Rg8 h8B Bg4 Qb1 Bh5 Nd4 Nb5 Qe4 Rb1 Nf5 Qb2 Ra1 a2 Rh4 Na3 Rg4 Be1+ Kg1 f2+ Kg2 f1R+ Kh3 f3 Rf4 g4+ Kh4 f2 Bg5 Qd2 Nh6 Qa6 d6 Nd5 d7 Nb4 Bd8 Qdd6 Nd5 Rh1+ Kg5 f1Q Bb6 Rg1 Kh4 Qf2 Ne7 Bec3 Bd8 Rgd1 Bb6 Rdd5 Bd8 Rf5 Bb6 Bgd4 Bg7 Be5 Bf8 Bh8 Qh1 Nd3 Bd8 Ba5 Rd4 Nb4 Qe4 Rd1 Rb1 a1B Rc1 Bb2 Ra1 Rb1 Qc2 Ka7 b8B+ Ka8 Ba7 Bc3 Bab6 Kb8 Re4 Bcg7 Rd4 c3 Qe4
4B1RR/N1PQb2K/q2q4/pnrbP1N1/8/1r2Pp2/4BBrb/1rn1knb1 b - - 0 1 illegal: Other
1qn1bR1b/nQPqq2q/2N3Pb/1Br2Nb1/5p1p/3PB3/7K/2knRNr1 b - - 0 1 illegal: No proof kernel
K7/1nPNr1kp/1b3R2/2pRqr2/n1r3qP/1B1r2PQ/4b1NN/2B1nb1b b - - 0 1 illegal: No proof kernel
N7/1PKnRbPr/5bR1/3rB3/kQ2pn2/r1nP1q2/nqbrp1B1/1N3R2 b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 h6 fxe4 Rh5 gxh6 Rh3 h5 Rh1 h4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Ke5 h5 g4 c5 f4 a5 b4 e3 g5 h3 g6 a3 g7 a4 f5 a2 f6 a3 f7 h2 Qe2 h4 Qg4 e2 Qe6 h3 Bb2 c3 Bc1 c2 Qb3 c4 Qe3 c3 Bg2 Rh5+ Qg5 Qd5+ Kf4 e5+ Ke3 Ka4 b5 Be6 b6 Nd7 b7 Rd8 Bf3 Ngf6 Qg6 Ne4 Bg4 Be7 f8R Bf6 Kf3 Bf7 Bb2 c1N Bf5 c2 Qg2 Nd3 Qg4 c1N Re8 Nf4 Re7 Nc3+ Be4 Rg5 Ke3 Qb3 Nf3 Rf5 Rf1 h1B Nd4 h2 Bc2 Be4 Nb5 h1R Nc7 Rh7 Na8 Rfh5 Bd3 Bf5 Bc4 Bc2 Bd5 Rf5 Bg2 e4 Qg3 Rd5 Qe1 Nb5+ Bc3 Qb2 Be5 Nc3 Kf2 Qb6+ Kg3 Qf2+ Kg4 Qf3+ Kf5 Rc8 d3 Rc4 Qd1 Rb4 Nd2 Rb2 Rb1 a1R Qe1 Rba2 Rb6 Rb2 Rd6 a2 Rc6 Bd1 Nb1 Rd2 Qf2 Bc2 Qc5 Bh4 Rg6 Bf6 Na3 Rb1 Qd6 Rb3 Nb1 a1Q Qc5 Qb2 Qb6 Ra3 Qd6 Be8 Qb6 Nh3+ Ke6 N1a2 Qd6 Rb5 Qb6 Bf7+ Kd6 Nf4 Kc7 Rd5 Qb4+
1k2QB2/1p1N1pK1/P1rr3r/n1q1Pbnr/2bRP1br/2b4N/1N3rBR/8 b - - 0 1 illegal: Other
1k1r1N1b/5QnR/1rn3bq/P2p2P1/BNB4b/1pr2nnr/3B1KP1/R4b2 b - - 0 1 illegal: Other
b1KR4/1PppBQrP/1Br3BR/4b2P/b1p3n1/4n1N1/2N2k1n/1bb2q1r b - - 0 1 illegal: Other
3Q2K1/7N/q1R2bB1/qNPpq3/1kr1p1b1/b1r1bB2/n1PPp3/2n2RBb b - - 0 1 illegal: Other
1K4bB/2R1p2r/2N1r1Bq/2PP2rr/n1nk2N1/RprPb3/1Q3Bp1/4q1b1 b - - 0 1 illegal: Other
1R3b2/2pR4/1Q1qk2b/1KP2N1b/1B1Pq2b/1rp1npP1/rB4rn/BN5b b - - 0 1 illegal: No proof kernel
Q1BbB2n/1P2N2r/3r4/R1k3rP/Ppq1R2K/nq2qp1N/2q2pbB/q7 b - - 0 1 illegal: No proof kernel
k2Q1K2/2Rr2Nb/1R3pq1/PB2pPn1/8/2rnB1bp/3rPrNB/1bq3n1 b - - 0 1 legal: proof: g4 c5 h4 a5 b4 axb4 d4 cxd4 Qd3 h5 Qg3 hxg4 Qh3 gxh3 Kd2 b5 Kd3 g5 Ke4 d5+ Ke5 Kd7 c4 Kc6 f4 Kb7 a4 b3 h5 g4 c5 b4 a5 g3 h6 d3 h7 d2 Nf3 d1R Ra4 b2 Nbd2 b1B Ra1 d4 Rg1 d3 Rg2 b3 Rh2 g2 Ne1 g1N Nc4 b2 Ng2 d2 Rh1 Bcf5 Nce3 Nh6 c6+ Ka7 c7 Nd7+ Kd5 Qe8 c8Q Ne5 Qe6 Rc8 Ra4 Rc2 Rb4 Nd3 Rb6 Rc3 Qd6 Rg8 h8B Ka8 Be5 Bh7 Nf5 f6 Ke6 Qg6 Ng7 Nf7 f5 Ng5+ Kd7 e6 Bh2 e5 Qe6 Bc5 Qe7 Bf2 Kd6 Bg3 Kd7 Re1 Kd6 d1R Be3 Rgc8 Kd7 R8c7+ Kd8 Nf7+ Ke8 Ng5+ Kf8 Rd7 Nh4 Rd5 Bg2 Rf1 Be4 Rf3 Ng2 Rf2 Bf3 Rd2 Be4 Nc5 Bd3 Rd7 Bc4 Nd3 Bb5 N1f3 Rc1 Ng1 Re6 Ba2 Rb6 b1Q Rc2 Qb2 Rc1 Bb1 Rc2 Ra3 Rc4 Qc1 Rc7 Rc3 Qd8+
1BK3bR/1B4BN/b2P2P1/1rb1q2r/pn1Qp3/1q1P4/Rb1p2n1/N1rq1k2 b - - 0 1 illegal: Other
1Bn2r2/1q2Rr2/b2p2pP/q2PbpN1/k1B1R3/8/nrqQNnP1/K3N1n1 b - - 0 1 illegal: No proof kernel
2bn3b/B2n4/PrPrq1R1/1BqN4/kP2pQrq/3p1pB1/N2R4/1n2Kn2 b - - 0 1 illegal: No proof kernel
q2qb2B/2n2N1P/2R4r/1q1R2pP/2qp3N/P1p1BBb1/1Q1nr3/3K1nbk b - - 0 1 illegal: Other
B1rq1bb1/R3P3/1Q3k1b/b1pN3n/1P1q1n1K/n3p2R/Pq1p3N/2B2rN1 b - - 0 1 illegal: No possible last move
KR1Bb3/3Np2b/nq2k2r/P2P3P/qr4RQ/4pBrN/3pnn2/1bbR4 b - - 0 1 illegal: No possible last move, all moves rejected
2RK1bbr/nR1p1BbP/1Prp1B1p/2b3k1/nq4q1/4P3/NR2Qn2/1q1N4 b - - 0 1 illegal: No proof kernel
1b1n4/Rn3pn1/1prq1nRr/1NPn1Np1/1Pk5/1B3b2/2K2NP1/1BQ1r1n1 b - - 0 1 legal: proof: h4 a5 d4 c5 f4 cxd4 b3 e5 h5 exf4 h6 a4 Nd2 a3 Bb2 axb2 Nb1 Qh4+ Kd2 Qxh6 Ke1 Qh2 Kd2 Ke7 e4 Ke6 c4 g5 a4 h5 c5 d5 e5 f3 a5 d3 b4 f2 a6 d4 a7 Kd5 e6 h4 e7 b6 e8N h3 Qf3+ Kc4 Kd1 Qd6 Be2 f1N Ra5 h2 Rb5 Rh6 Ra5 Bb7 Ra1 Nc6 Nh3 Nd8 Nf4 Rc8 a8B Rc6 Ng7 Nd2 Qg3 Nb3 Nh3 Nf6 Qe1 Na5 Nc3 b1N Qf1 Nd2 Na2 Nf3 Qf2 Ng1 Bg4 d2 Kc2 d1N Qd2 Nc3 Qe1 Ncd5 Bd7 Be7 Nc3 d3+ Kc1 d2+ Kc2 d1N Nf2 Bf8 Nf5 Bg7 Nb5 N1e3+ Kc1 Nc7 Ra3 Ned5 Kc2 Nce8 Qc1 Bh8 Ra4 Ng7 Ra2 Ne2 Re1 Ng1 Re6 h1R Ra4 Nh3 Ra2 Re1 Ra3 Ng1 Ra4 Nh7 Rg6 Nhf6 Be8 Bc8 Bb7 Bd7 Bc8 Nab7 Ra7 Be6 Nh4 Bg4 Bf5 Be2 Be4 Bh5 Nf5 Bf3 Nbd4 Rc7 Ba4 Rc6 Nb5 Nd7 Nbd4 Qe5 Re6 Ne8 Rg6 Qh2 Nb5 Be5 Rd6 Ng7 Rg6 N7f6 Kb1+ Nc3+ Kb2 Bb8 Bb1 Qd6 Kc2 Ncd5 Bb3+
8/N1rBB1Kn/rP6/1Rn1npQ1/rP1N3R/p2kbb1q/2Pn1Rp1/6rr b - - 0 1 illegal: Other
bK4bQ/r1Nr2rP/1NR2R2/rb4bq/n1p2p1p/2n2PP1/3N3B/3r1B1k b - - 0 1 illegal: No proof kernel
4R1n1/3pNp2/1n2b1q1/2b1p3/R2P1k2/2r2PBn/n2r1PK1/1QrrBnRN b - - 0 1 illegal: Other
3R4/1bb2n1P/3qNkp1/nr2B3/B1p4R/PQ1b1P2/1r1n1pKB/1rNb2n1 b - - 0 1 illegal: No proof kernel
R2B1B2/nn1kbpbP/5P1p/2r1p3/1B1P1n1q/K2QR3/N1b4N/brr2r2 b - - 0 1 illegal: Other
br4n1/q1nQPp2/3p1r2/1R1nn3/Rb3P1p/N3BP2/2kbNRK1/rb5B b - - 0 1 illegal: Other
bNn3QN/2nBp2r/6rb/K7/2P2Nbr/p2P1kB1/R1pn1r1P/R2q3b b - - 0 1 illegal: No proof kernel
2B3N1/2ppBr2/2n3b1/1KNbrQp1/3bR1nP/1P4B1/3nk1P1/Rr1qb1n1 b - - 0 1 illegal: No proof kernel
2nR3K/6B1/r1R2PqN/1PN3b1/1Qb3qp/3brq1P/B3bp1p/2Bk2nq b - - 0 1 illegal: No proof kernel
n2QKNb1/1q1NBp2/5P1B/n1nr2q1/PNR5/1prP4/2rRp2b/kn4r1 b - - 0 1 legal: proof: e4 h5 b4 d5 g4 dxe4 c3 hxg4 b5 c5 b6 c4 Bd3 axb6 Bc2 b5 Bb3 cxb3 Qe2 b4 Qf3 Rh6 Qd1 Rh8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 e5+ Kc4 b2 Kb5 Kd5 h4 b3 a4 g3 f5 g2 h5 g4 h6 g3 c4+ Kd4 c5 e3 h7 e2 c6 e1N c7 e4 Qe2 e3 Qf1 e2 Qf3 Nd7 Qf1 Qg5 Rh3 Nd3 Rh1 Ne7 Ra3 N3c5 d3 Nb6 f6 Bf5 c8N Ra5+ Kb4 Na8 Qe1 b5 Nh3 g1R Ra2 g2 Na3 b1N Nf4 b2 Nb6 Rg8 h8B Bh7 Qh4 Rf1 Qh2 g1R Ng6 Rf5 Bf4 Rd5 Nd7 Ra6 Bd6 Rc6 Ka5 Kc3 Nc2 b4 Kb5 Rc7 Qg3 Nc6 Be7 Na5 Bg7 Rh8 Rh5 Bg8 Rh4 b3 Rd4 Rh4 Rb4 Rc4 Bh6 Rc8 Qb8 Rc7 Bd8 Bd6 Ngf8 Bh2 Be7 Rc6 Nd4 Rc7 Nc6 Kc2 Qe8 Rc3 Rf4 Nd2 Rc4 Kb1 Nb4 Rc8 Ra3 Rc6 Qd8 Rc8 Na2 Ka1 Nb6 b1Q Ne6 Rf5 Nc7 Na6+ Rc5 Rcc1 Ne6 Qc2 Nf8 Rd5 Nb4+ Kb1 Ra2 Rc6 Rb2+ Ka1 Qd6 Nb1 Qd8 Qc3 Rd2 Rc2 Nc4 Rd7 Ne5 Qd4 Rc3 Qa7 Rc5 Re6 Rc7 Rec6 Rc8 R6c3 Rc4 Nb7 Kc6 Rd5 Bd6 Qb8 Kd7 Nac5+ Ke8 Na5 Ned7 Qb7 Be7
R5Q1/1N1Pr1p1/K2P4/N1q3n1/bBnr2p1/q2p1N2/qqR2P2/2kBrrb1 b - - 0 1 illegal: Other
3Q1RK1/1B1PP1PB/rR2Nbq1/2q1rq2/r1b2n2/2np1N1r/2pk2p1/q5B1 b - - 0 1 illegal: No proof kernel
1n1Kb3/2P2RpP/1PrNp1p1/1qB1b3/3qNnQ1/1k2rb2/1nB2nb1/2R4R b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 g4 fxe4 g5 b5 g6 bxa4 Bh6 hxg6 Bf4 Qb6 Bc1 Qd8 Kd2 Kf7 h4 Ke6 c4 a5 b4 d5 f4 e3+ Kd3 a3 h5 a2 c5 e2 b5 e1N+ Kd2 d3 Kc3 d2 Kd4 a4 b6 a3 h6 Bb7 h7 Nd3 c6 Qd7 Bb2 Nf6 Be2 Nf2 Kc5 d4 Qb3+ Nd5 Bc1 d1B Qb2 d3 Qd4 d2 Qc4 Ba4 Qd3 d1B Bf1 Bf3 f5+ Ke5 f6 e6+ Kc4 Bd6 f7 Nf4 Nh3 Rc8 Nc3 Qe8 Rb1 a1N f8R a2 Ng5 Nb3 Be3 a1Q Qd1 Nc5 Nce4 Ncd3 Bc5 Nb2+ Kb4 Bc7 Bd3 Kd5 Rf7 Be5 Rc1 Bb5 Nd6 Ra3 Qg1 Ba8 Bc2 Re3 Qg4 Ba4 Ka5 Rc7 Nb7 Kc4 Ne4 Rc8 Bb1+ Kb3 Nbd6 Nd7 Ka6 Nb8+ Ka7 Qd7+ Nb7 Qd4 Nbd6 Qa3 Bd3 Qab4 Bb1 Qb5 c7 Rd8 Bd3 Bc6 Bb1 Be8 Kb7 Rd7 Nc4 Rd6 Kc8 Rc6 Bc2+ Ka2 Qg5 Bb3 Ncd6 Bd5 Qg4 Bg2 Bd3 Kb3 Kd8 Bf3 Bb1 Bg2 Nf6 Bdf3 Ne4 Ka4 Bd3 Kb3 Bc2+
n5K1/Pp3pN1/Rr2PQ2/4nb2/1pNq2k1/1P3rn1/Bq1bBR1r/r2n3N b - - 0 1 legal: proof: f4 a5 h4 e5 d4 exf4 d5 g5 d6 gxh4 Be3 cxd6 Bc1 d5 Bd2 d4 Bb4 axb4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 d5 a4 h5 g4 d3 e4 d4 c4 f3 a5 d2 a6 h3 c5 f2 c6 h2 c7 h4 b3 h3 Ne2 d3 Ng3 Bh6 Na3 Ne7 Qf3 d1N Be2 f1R Nc4 Bf5 c8N d2 N8d6 Nc8 Ne8 Nb6 Ng7 N8d7+ Kd6 Qc8 Ke7 Ne5 Ra3 Rf2 Rf1 h1N a7 h2 Qc3 Rf3 Ra6 Rb8 Qd4 Na8 Rf2 Kh4 g5 Kg4 g6 Bg5+ Rf6 Rh6 Qc3 Be3 Ra6 Qh8 Qd4 Rc8 Qd6 Rc6 Qf6 Nd7 e5 Rb6 e6 Ne5 N7h5 Bg5 g7 Be3 g8B Qg7 Nf1 Ng3 Bh7 h1R Bg6 Qh8 Ng7 R6h2 Bh7 Nc3 Bg6 d1Q Bh7 Qd2 Bg6 Qh4 Kf8 Nd1 Kg8 Qb2 Bh7 Bd2 Bg6 Nh5 Ng3 Rf1 Nh1 Ng3 Ra3 Ne3 Ra4 Ra1 Ra6 Nd1 Bh7 Kh3 Bg6 Qhd4 Bh7 Bg4 Be4 Bf5 Bb1 Kg4 Ba2
R1bb2K1/p1P1BN1p/b5N1/kr2RqPr/2q2P1Q/qn1B4/3p3b/1B3qn1 b - - 0 1 illegal: No proof kernel
2kB4/3NprnN/1P1R1bq1/b4N2/b2r3p/p1QB3n/pPqPn2K/q5R1 b - - 0 1 illegal: Other
8/1kQ1K3/1nb1B3/1pp1b1n1/2P1R1N1/2P1nR1p/rb1Pr1bp/q1b1NBB1 b - - 0 1 illegal: Other
1b1n2N1/4Pp1n/k1n1RrRr/2p1qpb1/Bp2P2Q/1B1N1P2/3b3R/1K4bb b - - 0 1 illegal: Other
1B1Nr1N1/1B3b2/1rn2Ppp/2r2QB1/nRqn3b/pkPb1pP1/8/5rRK b - - 0 1 illegal: No possible last move
q1k1BnR1/2N3B1/QPbq2P1/5Kb1/P3Np1r/4p1b1/3qp1pr/q2B1n1R b - - 0 1 illegal: No proof kernel
2K2R1b/r1B2n1P/pqp2N1k/1NrPb1B1/qpp5/1P1b1R2/3b1n2/4rQ1N b - - 0 1 illegal: No proof kernel
BrNRRb2/2n1qp2/2b1P2q/2p1krp1/p1K5/2P5/1B2nNPn/Q1nB3b b - - 0 1 illegal: No proof kernel
3n2N1/P2b4/4Rq1N/n5rQ/4B1Pp/n1ppq1pP/1nBrB3/bq2k1RK b - - 0 1 illegal: No proof kernel
N4K2/p5R1/3rPnb1/n3pPnP/1qRQ4/p3b1r1/r1pr1qBB/2kR2N1 b - - 0 1 illegal: No possible last move
q4n2/p2PkNBn/5q2/bPb1r1p1/3pb1RP/N1RbQ1rp/B1nKN3/8 b - - 0 1 illegal: No proof kernel
3Nn3/1r2BrnR/1pbR2k1/1ppp2B1/q1PP2nP/1r2b3/2Kb2p1/1Q3NN1 b - - 0 1 legal: proof: e4 h5 d4 f5 b4 fxe4 g4 hxg4 b5 a6 Bc4 axb5 Bd3 exd3 Kd2 Kf7 a4 g5 h4 e5 f4 d5 c4 c5 a5 e4 a6 e3+ Kc3 g3 f5 e2 a7 e1B+ Bd2 g2 f6 g4 Qa4 g3 Qa5 b6 Ne2 g1R Qa6 g2 Kb3 Bh6 Ra3 Nc6 Be3 d2 Bf2 d1N Rh3 Rh7 Re3 Bd2 Kc2 Kg6 f7 Rb8 f8B Ne5 a8N Nf6 Be7 Ne8 Nc7 Bb7 Ne6 Bc6 Qa4 Rh1 Qb4 Rf7 Ng1 Rb7 Ra7 Qa8 Nd8 Rh3 Re1 Ra3 Be3 Ng4 B3g5 Be3 Nd2 Rb3 Nf1 Bd2 Bgf6 Bhg5 Re6 Bge3 Ra3 Qa4 Rd6 Ng7 Ra1 Ndf2 Bg5+ Nf6 Re1 Ng4 Re2 Kh7 Rf2 Nfe8 Rff6 Ne6 Rh6+ Kg7 Rh7+ Kg6 Qa3 Nh6 Qa1 Ng4 Bgf6 N6g7 Qb1 Rf8 Bg5+ Rf6 Rd7 Rf7 Rd6+
rB1r4/1k6/pP2q3/1rnP4/1N1Npbpn/3P1pRp/Rn2B3/1b1qRKQ1 b - - 0 1 illegal: Other
1rb5/kpp2B1N/Q3q2B/P1q1N2P/4KRPp/N3n1r1/1p4p1/1rn1bR1n b - - 0 1 illegal: No proof kernel
3Bb3/1q1N1B1n/pRpr1N1K/2Pp2QR/3P1P1n/nr1k4/R1p2p1b/n4n2 b - - 0 1 illegal: No proof kernel
rB2r3/1bRK2pr/2pRP1Qk/N2Np1n1/2P2pr1/1p1P2bq/1nb5/N3B3 b - - 0 1 illegal: No proof kernel
2R3rk/2qp1B2/3pPN1Q/1pq4b/R1P1p2K/N3b2p/1P1nq1B1/1rn1Rq2 b - - 0 1 illegal: No proof kernel
1br1k3/2P1p1nq/4Rnb1/q4qPR/p1pKBr1p/NR2N1p1/B1P4Q/7q b - - 0 1 illegal: Other
r1r5/1rR2qQ1/P2p1r1q/PnPQr1p1/4kn2/bN2p2B/1BR5/2N2K2 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 h5 bxa5 c5 Bg5 cxd4 Be3 Na6 Bc1 Nb8 h4 b6 f3 exf3 Qd3 Ba6 Qd1 hxg4 h5 g5 Rh4 Bd3 Rh1 Bg6 hxg6 Qc8 Ba3 Qc7 Bc1 Qd8 a4 e5 c4 Ke7 a6 Ke6 a5 Kf5 g7 g3 Rh5 b5 Ra2 f2+ Ke2 d3+ Kf3 g2 Rh3 d2 Ke2 b4 Ra1 e4 Nc3 e3 Rh5 b3 Qe1 d1R Ba3 b2 Na2 b1R Nc1 Qe8 Rh4 Rd5 Rg4 Nf6 g8Q Nc6 Nd3 Re5 Re4 Qf7 Bb2 Nd5 Qc3 Ba3 c5 d6 Nc1 Na7 Ra2 Nb5 Nf3 g1Q Nd2 Qh2 Ndb3 Qh6 Qd3 Rc8 Qg7 Rhe8 Bg2 Nf4+ Kf1 Ra8 Qd5 Rec8 Rb4 Nc7 Rb7 Nb5 Ba1 Rb2 Qd1 Rb1 Bh3+ Ke4 Rc7 Na7 Nd4 Rb7 Rc2 Nb5 Ndb3 Nd5 Ke2 f1R Bb2 Rf6 Qd2 Nf4+ Kf1 Ref5 Qd1 Re5 Qd5+
3K2k1/1qBb1q1Q/PQ6/4nN1b/2nq2PP/1R1R1r1b/1q2B1N1/1nq1n1r1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Qf3 fxe6 Qd3 e5 Qd1 e4 Bh3 g5 Kf1 g3 Bb2 g4 Qd3 g2+ Ke1 g3 Bc1 Bh6 Qd1 Bf4 Ne2 g1N Bf1 g2 Ba3 Rh4 Bc1 Bg3 fxg3 Rh8 Kf2 Kf8 c4 b5 a4 d5 h4 e5 a5 b3 a6 d3 Ke3 b2 c5 d2 c6 d4+ Kf2 d3 Ke3 b4 c7 b3 Nf4 Nf6 Ng6+ Kg8 Rh2 Bh3 c8Q Nfd7 Ra3 Nf3 Qe1 g1Q+ Rf2 d1B Qd2 Qh2 Ra4 Ne1 Qe2 d2 Rf4 Nb6 Qc7 N8d7 Qd3 Bh5 Be2 d1B Nc3 b1N Nb5 b2 Ra5 Ba4 Bf1 Rc8 Qcd6 Rc3 Nd4 Qe7 Rg4 Qf7 Be2 Qh1 Nf5 Nc4+ Kf2 Rh7 Nf4+ Rg7 Qd2 Qh2+ Ng2 e3+ Kf1 e4 Rd5 Ra3 Qb6 Nde5 Rd3 Bd7 Rg6 Rb3 Rgd6 Ra3 Rb3 Rg4 Rdd3 Rg7 Bf3 e2+ Kf2 Ra2 Qd4 Nc2 Rb6 Na1 Rc3 Nba3 Qh6 b1Q Bf4 N1c2 Rd6 Qb7 Qb6 Ra1 Rb3 Ng6 Rd2 Rg1 Rd5 Nb1 Bg4 e3+ Kf3 e1Q Ke4 Qc3 Ne1 Qhd2 Ng2 e2 Bb8 e1Q+ Be2 Qec1 Bf4 Qc7 Rd3 Qcf6 Be5 Ne1 Kd4 Qb8 Kc5 Qdb2 Bf4 Qb7 Be5 Bc8 Bc7 Qfc3 Kb5 Nge5 Kc5 Rg4 Kb5 Rf4 g4 Rf3 Kc5 Nca3+ Kd6 Qcc4 Qe6 Bd7 Qh6 Qg6+ Ke7 Qgf7+ Kd8 Qcd4 Qa5 Nac4 Qb5 Qdd5 Qbb6 Qdd4 Qh7+
5r2/4n2R/1Nkp1nQ1/2b3b1/4PPqR/1N4Pb/KBBq1Qr1/3nr1nn b - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 e5 e4 d3 Qd2 g5 Qe3 gxh4 a4 b5 axb5 f5 Ra6 f4 Rd6 fxe3 Rd4 exd4 Kd1 h5 f4 a5 c4 e2+ Kd2 e1R g3 h3 c5 h2 c6 a4 b6 a3 b7 h4 c7 h3 b5 a2 b6 a1B Na3 Nf6 Nb5 Bc5 Ba3 Rf8 Be2 Nc6 b8Q Ne7 Bb2 Ra2 b7 d6 Nf3 Kd7 Bf1 Kc6 Nc3 Qd7 Na4 Qg4 Qa7 Be6 b8Q Bc8 Rg1 h1N Nb6 Nf2 Rh1 h2 Be2 Bf5 Bd1 Nh3 Kc1 d2+ Kb1 d3 Qe8+ Bd7 Qg6 Ng1 Ba3 Rc2 Bb2 Bf5 Ka2 Bc8 Be2 d1Q Nd2 Bf5 Nb3 d2 Ba6 Qde2 Bc4 d1N Bd3 Rd2 Bb1 Qd3 Bc2 Rg2 Bc3 Qd2 c8R+ Kb5 Rb8 Kc6 Bd4 Bc3 Rb7 Ba5 Bb2 Be6 Nc4 Bd8 Rd7 Qge2 Nb6 Bh3 Qa6 Qg4 Qe2 Ned5 Rh7 Ne7 Qf3 Ne2 Rf1 h1N Rf2 Ng1 Re2 Qd4 Qf2 Qe3 Rd2 Qee2 Rd5 Qd2 Rdh5 Nfg8 Rg5 Nf5 Rgh5 Bg5 Qh6 Nfe7 Qg6 Nf6 Rh4
2K2B2/3n4/r1NBb2Q/2qn1br1/b1rQ4/P1P1Np1b/4kPq1/2Rb1b1R b - - 0 1 legal: proof: d4 c5 h4 cxd4 b4 g5 a3 gxh4 e3 a5 Bc4 axb4 Bd3 Nh6 Bf1 Ng8 Bb5 d3 Kf1 d2 Bc6 Nf6 Bd5 Ng8 Ba2 b3 Qf3 bxa2 Qh5 Ra4 Qd1 Ra8 Ne2 d5 Rh3 d4 Ng1 d3 Rh2 Bg7 Rh1 Bd4 exd4 Bf5 Ne2 Bg4 Ng1 Bc8 g4 Kd7 Kg2 Kc6 Kh3 Kd5 c3 Kc4 d5 h5 d6 e5 d7 f5 g5 b5 g6 f4 g7 e4 Ne2 e3 Ng3 b4 Qg4 d1B Qg6 b3 Qe8 e2 Qe5 e1R Qe8 f3 Qe7 d2 Qe5 Kd3 Qa5 b2 Qe5 Rg1 Qe6 Qb6 d8B Nd7 Qf7 Ra6 Bf6 Ba4 Qb3 d1B Qb4 Ne7 g8Q Qc5 Qf4 Nd5 Nd2 b1B Ngf1 Rg5 Qd6 Ke2 Qf4 Bf5+ Qg4 Rh7 Rb1 a1Q Qg6 Re7 Qg7 Re4 Qh6 Rc4 Bg7 Qa2 Nb3 Qd2 Kh2 h3 Kg3 h2 Bf8 h4+ Kh3 Qdd4 Bf4 Qg7 Na5 Be6 Nc6 Qg6 Rg1 h1B Ne3 Bf5 B4d6 Bg2+ Kh2 h3 Kg3 h2 Rh1 Bh3 Rc1 Ne5 Kh4 Bce6 Qd4 Qg8 Rf1 h1B Rg1 B1g2 Rh1 Bfg4 Kg3 Bf1 Kh4 Ne7 Kg3 Nd7 Kf4 Nb6 Ke4 Bgf5+ Kf4 Ned5+ Ke5 Nc7+ Kf6 Nd7+ Ke7 Nd5+ Kd8 Rh5 Rh2 Qg2 Kc8 Rg5 Rh1
bB2nn1b/b4r1k/1QQq2r1/PKb1b3/2R1q2r/1P1P2b1/B6p/1N4NR b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 h5 d5 cxd5 g6 Nf3 gxh5 Ng1 h4 b3 a4 Qc2 a3 Qc3 Be6 Qb2 Bc8 Ke2 axb2 a4 b5 a5 Bf5 Ke1 Bc8 Ra4 bxa4 Ke2 Kf7 g4 Kg6 f4 e5 g5 c5 d3 h5 d6 e3 f5+ Kh7 f6 h3 d7 h4 f7 h2 Bg2 e4 Bh3 a3 Bg2 a2 Nf3 a1B Nd4 h3 Nc6 c4 Rg1 h1Q Na7 c3 Na3 b1R Nc2 h2 Nd4 c2 Nab5 Ra6 Nc3 Bc5 f8Q Bb7 Qf6 Ba8 Qc6 Nf6 Bf3 Ne8 Bh5 Qf6 d8Q Nd7 Qdb6 Nf8 Nf3 Qd6 Bb2 Rf1 Nb1 c1B Be5 Bcb2 g6+ Kh6 g7 Kh7 Bg3 Be5 g8R Rf2+ Kd1 e2+ Kc2 e3 Rg4 Rf1 Ra4 e1B Rc4 e2 Bg4 Qg2 Rh1 Bef2 Ng1 e1B Bd1 Qe4 Bf4 Bfd4 Bg3 Rf7 Bf4 Bef2 Kd2 Bg3 Bc2 Bg7 Be5 Qe7 Bb8 Qd6 Nc3 Bdf2 Bb1 B7e5 Ba2 Bfd4 Qb4 Ba7 Qbb6 Bc5 Nb1 Kg6 Rc2 Rh4 Rc4 Kh7 Kc2 Bh8 Kd2 Bag7 Kc2 Nf6 Kc3 Ne8+ Rd4 Bf6 Kc4 Bfe5 Kb5 Qe2 Qcb7 Qe7 Rc4 Qe4 Qd8 Rg6 Qdb6 Qd6 Q7c6
3n1Qq1/b3N3/4PN1b/2Bb4/p3q1nn/2KnbkP1/Q4PRr/4BqqR b - - 0 1 legal: proof: e3 e5 Bc4 a5 Nc3 b5 Nb1 e4 d4 Ra6 Ke2 Re6 Ke1 Re5 dxe5 c6 a4 bxa4 h4 f5 h5 f4 h6 fxe3 Bd5 cxd5 Na3 gxh6 Nb1 h5 Ke2 h4 Kf1 Kf7 Ke1 Ke8 c4 Kf7 b4 Kg6 g3 Kg5 b5 h5 b6 h3 b7 h2 c5 d4 e6 d5 c6 a3 c7 h4 Bb2 d3 Nc3 a2 Na4 e2 Kd2 Kg4 Bf6 e3+ Kc3 d4+ Kc4 d2 Be7 h3 Qc2 e1B Kd3 d1Q+ Qd2 e2 Rb1 a1B Nb6 a4 Bg5 Nh6 Rb4 Nf5 Be7 Nh4 Rc4 Nc6 b8B Bb7 c8Q Bh6 Qd7 Qg8 Bb4 Nd8 Rc2 Bd5 Ba5 Qb1 Qd1 Bed2 Qf7 Bde3 Nf3 e1N+ Ke2 Nd3 Qd2 Qg1 Ng5 Bb2 Rc4 Ba3 Qf6 Bc5 Nc8 Ba7 Qa2 Rh7 Be1 Rh8 Kd1 Qf1 Rg1 h1Q Kc2 h2 Qf7 Qe4 Bd6 h1Q Rg2 Qhg1 Ne7 Rh7 Qg7 Rh8 Nh7+ Kf3 Ba3 Qe2+ Bd2 Bhf4 Qf7 Ne5+ Kb2 d3 Bb4 Qh2 Qb1 Nf5 Bc5 Ng4 Nf8 Qh1 Nc6 Rh2 Ne7 Nh4 Rc1 Qhe1 Qe8 Bh6 Qa2 Qh1 Rcg1 Qf1 Be1 d2 Nd7 d1N+ Ka1 Qf8 Nf6 Nb2 Qf7 Qh8 Qf8 Nd3 Kb1 Qg8 Kc2 Rh3 Kc3 Qh2 Rh1 Qhg1 Qb1 Rh2 Qa2
rB6/qQ1P3b/3b1r2/3nNk2/7b/1K1Pq1N1/2rqbPqp/QR1R2Br b - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 f5 d3 b5 h5 bxa4 e3 Nc6 Be2 Nd4 exd4 g6 Bf3 gxh5 Bd5 h4 Be4 fxe4 Kd2 Kd7 Kc3 Ke6 g4 c5 b4 h5 b5 a5 g5 h3 b6 h4 g6 e3 d5+ Kf5 d6 e5 b7 e2 b8B e1R g7 e4 Ba7 a3 Qd2 e3 Ra2 e2 Bb2 h2 Bb6 a4 Nf3 h3 Qe3 Ne7 g8Q Rh6 Rg1 h1B Ng5 Be4 Qh8 Rf6 Qg8 Nd5+ Kc2 c3 Qd2 c4 Ra1 a2 Qe3 a3 Rg3 Rh1 Qc5 e1Q Ba5 Qe3 Nf3 Qe8 Bc7 Qg6 Rg1 Qg2 Re1 Bb7 d7 Bd6 Ne5 Bf3 Ng4 Be2 Nd2 Bc6 Rad1 a1Q Qe8 a2 Rb1 Bb7 Kc1 c2 Be5 Qad4 Qc8 a1B Qb4 Qa7 Bh2 Bc6 Bg1 h2 Qbb8 Bae5 Qa6 Bg3 Kb2 c1Q+ Ka2 c3 Nf1 c2 Kb3 Qcd2 Red1 c1R Ne5 Bh4 Qa1 Rc2 Qb5 Ne7 Bb8 Be4 Qb7 Nd5 Qb2 Kf4 Qa3 Bh7 Qa1 Kf5 Ng3+
7k/RN1NK3/P2rBn1P/1qpb4/Pb3B2/p4br1/Rqqn2Q1/2n1r2Q b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 c5 hxg4 c6 dxc6 Na3 c5 Nb1 c4 a4 b5 Qb3 b4 Qa3 bxa3 b4 a5 bxa5 Be7 Bg2 Bd6 Bf1 Bf8 Kf2 g5 h4 f5 d4 Kf7 e4 Kg7 e5 c3 h5 f3 Kg3 c2 a6 f2 e6 f4+ Kh2 g3+ Kh3 g2 Kg4 f3 Kf5 g4 d5 g3 d6 Bb7 e7 Nf6 Ke6 Nbd7 e8Q Nc5+ Kf5 Nb3 Ke6 Qb8 d7 Bb4 d8Q c5 Ke7 Rh6 Ra2 Bd5 Qb5 Nd2 Be2 f1B Qd3 f2 Bg4 Be2 Be6 f1Q Qe4 Bf3 Nc3 Qfb5 Qd6 Q8b6 Qc6 Rg8 Qe2 Kh8 Ne4 Rg5 Nd6 Re5 Qf2 Re1 Rh3 Qb8 Nb7 Qe5 Rh4 Qc3 Rg4 Qb2 Rg7 Rg6 Ne2 g1R h6 g2 Nc3 Rg3 Ne4 Rh1 Rf7 g1Q Qg2 Qf2 Rg7 Rd1 Rf7 Rhe1 Rg7 Nb3 Bf4 c1N Rf7 Qfc2 Qh1 Ng4 Nf6 Nd2 Nd7 Nf6 Qg2 Nde4 Rg7 Rd3 Rf7 Nd2 Rg7 Bc4 Qh1 Rd6 Qe4 Bb3 Qe2 Bc4 Qeg2 Bcd5 Nb8 Ncb3 Kf8 Rb6 Na5 Qe4 Ra7 Qec2 Nb7 Rd6 Nd7 Nc1 Ke7
kb2Knr1/7P/PQp1Rr2/P3nQ2/1n1B4/pN4R1/q1qb4/bNrB1r2 b - - 0 1 illegal: No proof kernel
K2b4/P2N4/Q1B1rR1P/b1p2N1k/1q3nrn/rpnq4/P3Bbb1/1RQ5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 dxc4 Bb2 e5 Bd4 exf4 Bf2 Ke7 Bh4+ Ke8 Bg3 fxg3 d4 g5 Kd2 c5 Kc3 f5 e4 Kf7 h4 Kg6 d5 b5 d6 g2 e5 g3 d7 b4+ Kb2 b3 Ka3 f4 Ka4 g4 Kb5 c3 a6 c2 e6 c1B e7 f3 Rh2 f2 Qd2 Qb6+ Ka4 Nf6 d8Q Nh5 Qd1 Bd2 Nh3 g1R Nc3 g2 Nb1 g3 Rh1 Bb7 Qc1 Ba5 Qc8 Nd7 Na3 Rh6 Ng5 Nf4 Rb1 Kh5 Nc2 Re6 Nf3 Ne5 e8B+ Neg6 Ncd4 Be7 Nf5 Bd8 Be2 f1Q Ne5+ Qf3 Bc6 Ra7 Bf1 Qd3 Nd7 Ba8 Bb5 Bf3 Be2 Ra8 Bc6 Qb7 Ka3 Qb4+ Kb2 Nh3 Qf4 Bab6 Qc1 Kg4 h5 Nh4 h6 Kh5 Rh2 Nf4 Rh1 Nd5 Ne7 Nc3 Rh3 Rh1 Rh2 g1N Rf2 g2 Qb7 Nh3 Qa7 Qbd4 Ka3 g1B Rf1 Qg4 Qb7 Bd5 Rf6 Bf2 Nf5 Rg1 Qc8 Rg3 Qb7 Bg2 Qa7 Ne4 Ka4 Bbc7 Qb6 Nc3+ Ka5 Ra7 Bf1 Qgd4 Be2+ Rg4 Qa3 Nf4 Qc1 Rb7 a7 Q4e4 Bb5 Qb4+ Ka6 Rb8 Qc6 Rc8 Kb7 Bb6 Qd5 Rcc6 Qc4 Bbc7 Ka8 Ra6+ Bc6 Ra3 Qb5 Ba5 Qa6
Q1Q2K2/p3P2r/BP1bB1rN/8/nR1b4/4PRkq/r2pq1n1/qN2rn2 b - - 0 1 legal: proof: h4 e5 d4 b5 a4 bxa4 h5 c5 f3 e4 h6 cxd4 Na3 e3 Bd2 exd2+ Kf2 Bb7 Nb1 Be4 fxe4 gxh6 Nh3 h5 Ng1 h4 Kf3 Ke7 Kf4 Kf6 c4 d5 g4 h5 b4 d3 e3 a3 b5 a2 c5 h3 b6 h4 c6 h2 c7 h3 c8Q d4 Ne2 Rh7 Qd7 Ne7 Q7a4 Nd5+ Kg3 Kg5 e5 f5 e6 f4+ Kf3 Kh4 Ke4 f3 Ke5 f2 g5 Nd7+ Kf5 Qf6+ Ke4 Nf4 g6 Nc5+ Kf3 Bd6 g7 Rg8 e7 Ng2+ Nf4 Qf5 Qac2 Na4 Qdc1 d1R Qc6 d2 Qa8 d3 Qcc8 Re1 Rg1 Qf6 Ke4 h1Q Kd5 d1Q Ne6 h2 Nd8 d2 Ba6 f1N Nf7 Kg3 Nh6 Qe2 Kc6 Qe5 Kd7 Q5h5 Ke6 Qh3+ Kf7 Nc5 Na3 Na4 Rb1 a1B Rb4 Bd4 Nb1 Rc1 Qf8 Rc2 Ke8 Ra2 Qc8 Rgh8 g8B Rg7 Bf7 Rhh7 Be6 Rg5 Qh8 Rg6 Kf8 Kf2 Ng8 Nh4 Qa8 Ng3 Na3 Ng2 Nh6 B6c5 Rd1 Bd6 Ke8 Qg1 Rc1 h1R Rc5 Qa1 Nb1 Re1 Rf5+ Kg1 Rf3 Kh2 Kd7 Nf1 Qhc8 Bc7 Ke8 Bd6 Rf4 Kg3 Kf8 B4c5 Rf2 Bd4 Rf3+
kR1r1QNQ/p1b5/nbK5/P1bN3P/nB1rp2b/2B3R1/q1n4P/4r1r1 b - - 0 1 legal: proof: e4 b5 c4 bxc4 g4 f5 d3 cxd3 Bh3 Bb7 Bg2 Bd5 Bf3 Bf7 Bg2 Bh5 gxh5 fxe4 Bh3 Kf7 Bf5 Ke8 Bg6+ hxg6 Kd2 c5 Ke3 d5 a4 Kd7 b4 Kc6 f4 Kb7 f5 e5 f6 c4 a5 d2 b5 g5 f7 d4+ Ke2 d3+ Ke3 c3 b6 g4 Ba3 g5 Qe2 d1R Qg2 g3 Qf2 c2 Nf3 c1B+ Qd2 g2 Bc5 g1R Ne1 g4 Ng2 g3 Ra3 Na6 Bd4 Nh6 Ne1 g2 Ra4 Qd5 Bb2 Qa2 Ra3 Rd8 Nc2 Ka8 Nb4 Rd4 Bc3 Bc5 Nd5 Rd8 f8Q Rdf1 Ne7 Re1+ Kf2 e3+ Kf3 e2 Qb2 d2 Ng8 d1N b7+ Kb8 Bb4 Bf4 Nc3 Ng4 Nd5 Nc3 Qa1 Na4 Qb2 Rd3+ Ke4 Ne3 Qd4 Nc2 Rb3 Rd2 Rg3 Rgf1 Qb2 g1B Bc3 Bge3 Rhg1 Bb6 Rg7 Bed4 R1g3 Bdc5 Bb4 Bd4 Nde7 Rg1 Rh7 Kc7 b8B+ Kb7 Bc7 Ka8 Bcd6 Qa1 Kd5 Rd3 Bd2 e4 Kc6 Qa2 B6b4 Bdc5 Qh8 Rd4 Nd5 Bb8 Rb7 B8c7 Bdc3 Red1 Rd3 e1B Re3 Bh4 Rg3 Rde1 Rb8+
3n3r/P1PK2RB/P3N3/R2n2r1/2n3BQ/1k2p1NQ/1p1b4/2bqqnrr b - - 0 1 legal: proof: b4 c5 h4 g5 d4 gxh4 e4 cxd4 a4 f5 a5 fxe4 b5 b6 Ba3 Ba6 bxa6 Bh6 Bc5 b5 Bb6 axb6 a7 b4 a6 Bf8 Ke2 Kf7 c4 Ke6 g4 h5 f4 d5 c5 b3 c6 b2 c7 b5 g5 b4 g6 d3+ Ke3 d4+ Kf2 Kd5 g7 Kc4 f5 e5 f6 h3 Kg3 h4+ Kg4 e3 Kf5 e2 Ke6 e1B f7 h2 Ra4 e4 Nh3 e3 Rg1 h1R Ng5 h3 Rg3 h2 Be2 Rg1 Rf3 h1R Nh7 Qh4 Qc1+ Kb3 Nc3 b1N Bf1 d2 Ne2 d1Q Nc3 d3 Rg3 d2 Rg6 Nc6 Ra2 Nd8+ Kd7 Ne7 g8B Nd5 Ra5 Rb8 Rg5 Rb5 Bh3 Bg7 Ne2 Bb2 Qc6 Bc1 f8Q Qc2 Nd4+ Kb2 Nb3 d1N Qcc5 Nd2 Qc6 Nf1 Qf5 N5c3 Nf8 Bed2 Bh7 Qe1 Nc5 b3 Ne4 Re5 Qf3 Nd5 Qa4 Rf5 Rg7 Rfg5 Nd6 Kc3 Nf5 Nb2 Qh4 Qcd1 Bg4 Nc4 Ne6 b2 Qfh3 Kb3 Ng3
q2Nr3/b1pP2Q1/1qn1PRQ1/qB3B1b/2Pq2p1/1R4q1/4N1n1/bK2k2q b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 axb6 Bh3 b5 Bf1 b4 f4 e5 a4 b5 Bh3 e3 Bf1 e4 Ba3 bxa3 Bh3 Rh5 Bf1 Re5 fxe5 Ra6 Bh3 Rh6 Bf1 Rh8 h4 Kd7 c4 Ke6 d4 Kf5 a5 Kf4 h5 Kg3 h6 f5 h7 g5 a6 e2 Kd2 Kf2 Kc1 e1Q a7 a2 a8B b4 d5 f4 d6 e3 Bd5 f3 Bf7 e2 Rh6 g3 Rh1 b3 Bh3 g2 Bh5 b2+ Kc2 Qa5 Bg6 e1Q Bgf5 Nh6 Ne2 g1Q Qc1 Nc6 Nd2 Ng4 Qb1 Ne3+ Kb3 Ng2 Kc2 g4 e6 Bd7 Nb3 Be8 d7 Bh5 Nc5 Qda8 Nb7 Bc5 Nd8 Re8 h8Q Ba7 Qg7 Kf1 Rh2 Qd4 Rh1+ Kf2 Rh2 Qg1 Rh1 Qh2 Rd1 Qh1 Rd3 Qhe1 Rb3 Kf1 Qd1 f2 Rc1 a1B Qd3 Qd1+ Kb1 Ke1 Qe4 f1Q Qd3 Qh1 Qc2 Ne3 Bg2 Qh4 Bge4 Ng2 Qd3 Qg3 Qc2 Ne7 Bc6 Qdb6 Bb5 Nc6 Qf7 Kf2 Qe4 Qdd4 Rc2 Ke1 Qg7 Qdf2 Rcc3 Qfd4 Rf3 Qg1 Bh7 Kd1 Rf6 Qgd4 Bg6 Qad2 Ka2 b1Q+ Ka3 Qde1 Bh7 Qc1+ Ka2 Qcd2+ Kb1 Qda5 Qf5 Qh1 Qfg5 Ke1 Bf5 Qdg1 Q5h6 Qgd4 Qhg6
qb1bB2k/4b2N/1r2P3/1P3Qrn/P1np1q1R/1K2Rpq1/2N1Q1rp/6B1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 f5 bxc4 f6 exf6 b5 f5 Qa4 f4 Qb3 Ra6 Qd1 Ra8 d3 c5 Bb2 c3 Nd2 c2 Nb1 c4 Qd2 c3 Bc1 Bb7 Qe3+ Be4 Qd4 Bd5 Qb4 Bc4 dxc4 axb4 a4 h5 g4 f5 e4 Kf7 c5 Kg7 c6 d5 e5 h3 g5 b3 e6 d4 c7 f3 c8Q h4 g6 h2 Qc4 f2+ Ke2 h3 Kd3 b2 Bf4 c1B Kc2 Nc6 Bg5 f4 Ne2 Rb8 Na3 b1Q+ Kd1 Na5 Bg2 Qb3+ Nc2 Be7 Rb1 Rb6 Bc6 Nf6 Bd7 Qa8 Re1 f1Q Ng1 h1R Qc7 Nc4 Nf3 Nh5 Be8 Rg1 Qc5 Rg2 Qf5 Rg8 Rb2 Qf2 Re3 Kh8 Bh6 Qg3 Ng5 f3 Nh7 Bd8 Ra2 Ba3 Bg5 Qb4 Bh4 Qf4 Bf2 Qbd6 Bg1 Qc7 Ra1 Bae7 Kc1 Rg7 Kb1 Qg3 Ka2 Qcf4 Kb3 h2 Rae1 Rg8 Re4 Qc1 Rh4 Qcf4 Nb4 c2 Re3 c1B Nc2 Bca3 Qd3 Bad6 Qd2 Kg7 Qe2 Kh6 g7 Bb8 Qd1 Rf8 g8Q Rf5 Qg4 Rg5 Qd2 Kg7 Qf5 Kh8 Qe2
n4R2/2RK1b1n/Q2Q1P1p/2pbb1b1/1PP1BNpB/2Npq1r1/b7/1kr5 b - - 0 1 legal: proof: b4 b5 d4 f5 g4 fxg4 h4 e5 h5 exd4 a3 Qh4 Bh6 Qh2 Bc1 a5 Nd2 axb4 Nb1 b3 h6 b4 axb4 Qxh6 Rh3 Qh4 Rh1 Qh2 Kd2 Ke7 Kd3 Ke6 Ke4 c5 f4 g5 c4 d5+ Kd3 Kf5 e3 g3 Qe1 b2 Bd2 h6 Nh3 g2 Ra2 g1B Bc3 Bb7 Qc1 Nf6 Be2 Nh7 Qe1 Bd6 Bh5 Rg8 Qf1 Be5 Qe1 Qg3 Qd2 Na6 Bf3 Nc7 Ra7 Rad8 Rh2 Na8 Rf2 Bc6 Rc7 Bh2 Kc2 d3+ Kb3 d4 Ka3 Bb7 Ka4 Bd5 Kb5 Rd6 Qd1 d2 Qa4 d1B Be1 Bb3 Qa6 Ba2 Nc3 b1B Rf1 Qg1 Bh4 Bbe4 Bg2 Bf7 Rf3 Bed5 e4+ Kg4 f5 Qe3 Rf2 Bhf4 Bh1 d3 Rf3 Rdg6 Qd6 Bde6 Kc6 Bd5+ Kd7 Rf6 Qe7 Ra6 Qd6 Ra3 Rf1 Rb3 Rf3 Rb1 Rf2 Rc1 Rf1 Bd4 e5 Rg6 e6 Bde5 e7 Rg8 Rf2 Rg6 Rg2+ Kf3 e8Q Rg8 f6 Rg7 Na4 Ke4 Qa6 Kd4 Qee6 Rg6 Qed6 Rg7 Nb2 Kc3 Na4+ Kb3 Rg3 Kc2 Be4 Kb1 Rg1 g4 Re1 Rg5 Re2 Rf5 Re1 Bg5 Nc3+ Ka1 Re2 Rf3 Nf4 Rg3 Rb2 Rd1 Rb3 Rb1 Ra3 Rc1 Ra5 Kb2 Rb5 Ka1 Rb8 Kb2 Rf8 Ka1 Nd1 Kb1 Nc3+
qkN2b2/2p1b1Bb/P2r1P1R/4rQ1R/B2p2n1/p3Nn2/pr1P4/3Kb1Q1 b - - 0 1 legal: proof: b4 a5 e4 b5 a4 g5 h4 gxh4 c4 f5 c5 fxe4 c6 Nxc6 Ne2 d6 Qb3 Nd4 Ng1 Nc2+ Ke2 Qd7 Qf3 Qf5 Qb3 bxa4 Qf3 a3 Qb3 a4 Qf3 Qa5 bxa5 Be6 Qg4 Bf5 Qf3 Bc8 Qb3 Ne1 Qd1 Nc2 f4 Kd8 g4 h5 a6 e5 f5 h3 g5 a2 g6 e3 g7 d5 Nc3 d4 Nb1 e4 Ba3 h2 Bb4 a3 Bd6 h4 Bf4 h3 Qc1 Nf6 g8Q Rh6 Qe1 Rb8 Qh8 Rb2 Qg8 Ng4 Qh8 Rd6 Bh6 Kd7 Qf2 Ne1 Qg8 Nf3 Nc3 Kd8 Kd1 e2+ Kc1 e1B f6 e3 Ne4 e2 Bg7 Bf5 Qe6 Bg6 Qf5 Bh7 Qg2 Bh4 Qg3 e1B Bb5 Bg5 Ne2 Bf4 Kd1 Bh6 Qg1 Be7 Qc5 Kc8 N2c3 Kb8 Ba4 Bd8 Nd5 Be7 Bh8 Bhf8 Ne3 Rb5 Qf5 Re5 Qg3 Ka7 Bg7 Kb8 Rf1 h1R Qg1 h2 Rb1+ Rb6 Nd6 Rb2 Rc1 Rb6 Nc8 Rd6 Qg2 Rg1 Rc5 h1Q Qh2 Rg3 Qg1 Rh3 Rd5 Rh5 Ra5 Rb5 Rf2 Rb2 Rh2 Rg5 Rh6 Rh5 Qc2 Re5 Qd3 Nfh2 Qf5 Qa8 Rd5 Nf3 Qd7 Re4 Rdh5 Re5 Qf5
2K4Q/1B2k1rq/2n2r2/2Br2P1/n1pb4/2p1pPQ1/pP1Np1pR/1Nr4R b - - 0 1 legal: proof: c4 b5 e4 f5 a4 bxa4 c5 fxe4 c6 h5 Na3 dxc6 Nb1 c5 Ra3 c4 Ra2 Nh6 Ra1 Ng8 g4 hxg4 h3 g3 Qb3 g2 Qc2 Bg4 Qd1 Bc8 Ne2 g5 Ng1 g4 Ra3 g3 Ra1 Bg4 hxg4 Rh7 Qc2 Rh6 Qd1 Rh8 Ke2 c5 Ke3 a5 Kf4 e5+ Kf5 c3 Ke6 c4 d4 e3 f3 e4 d5 a3 d6 a4 Qd3 e2 Qd1 a2 Qd2 e3 Qe1 a3 Rh2 Nc6 Nh3 g1R Ng5 Nge7 Bd2 Nd5 Bh3 Qc7 Ne4 Bg7 d7+ Kf8 Qf2 Nb6 Be1 Bd4 Ned2 Ra5 g5 g2 Bf5 Rg8 Qg3 Rg7 Be4 Na4 Bf2 Qb7 Kd6 Rc1 d8Q+ Kf7 Qh8 Qa7 Qg4 Rc5 Bg3 Rf5 Be5 Rf4 Qg3 Rf6+ Kd5 Qd7+ Bd6 Qh3 Bc5 Qh7 Rh1 Rf5+ Kd6 Rf6+ Kc7 Rd1 Ba7 Ke7 Bb6 Na7 Bb7 Nc6 Kc8 Rc1 Nb3 Rd1 Rh2 Rc1 N1d2 Rd1 Rc1 a1R Nb1 a2 Ba7 Rd3 Rch1 Rd1 Na3 Rac1 Nb1 Be5 Bb6 Rd5 N3d2 Bd4 Bc5+
1r1n2qb/1Nk1B1qP/q5b1/1Qq2B2/1N2P2P/1q1n3r/Q2R2rb/1nR3nK b - - 0 1 illegal: Other
4n1b1/1r1Pn1Q1/kq2N2r/N1bb2B1/1qbP4/r4bP1/2Kbn3/R1Q1rR1B b - - 0 1 illegal: Other
3q2nN/rn1qR1K1/1N1P3n/Bnk2b2/1Rn1b1Br/QQ6/1P4Pb/1r1br3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 f6 dxc4 Nh3 exf6 Ng1 f5 Ra3 f4 Ra2 Qf6 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 a5 Ke5 h5 d4 f5 e4 f3 d5+ Kc5 Ne2 f2 Ng1 f4 Na3 f3 Bg5 c3 Ba6 f1B Rh3 f2 Re3 h3 Be2 h2 Qd3 h1N Rh3 c2 Bf3 c1R Nc4 h4 Qe2 a3 Ne3 a2 Qe1 a4 Qd2 a3 Rh2 h3 Bh6 Rb1 Bh5 Bd3 Ne2 f1B Bg5 Bf5 Bf4 Nf2 Bf3 Rh4 Bg4 Na6 Ng3 Ra7 Qe1 Bfe2 Nef1 Bd1 Rh1 h2 Rg1 h1Q Nd2 Qh3 Qf1 c6 Qe2 Nc7 Re1 Nb5 Nc4 B3c2 Bd2 Bd3 Kf4 Bd6+ e5 Bde4 Nh5 Qd3 Qf1 Qd7 Kg5 Bb8 e6 Bh2 Be2 Ng4 Ba5 N4h6 Bg4 Qd4 Qf3 Qh8 Qg3 Qf6+ Kf4 Qfd8 Ke5 Q8e8 d6 Bdf3 Qf4 Bd3 e7 Rd1 Re2 Re1 Re4 Bd1 Bh3 Qed8 Bb6+ Kb4 e8Q c5 Na5+ c4 Bg4 B3c2 Bc7 Kc5 Qg3 c3 Nf4 Bd3 Ng6 c2 Re3 c1N Nh8 Nb3 Nc4 Na5 Qf7 Nb7 Ba5 B3c2 Rc1 a1R Nb6 a2 Qe6 Rb1 Re4 Ne7 Kf6 a1N Kg7 Nb3 Re2 Nd2 Qa3+ Kd4 Qeb3 Neg8+ Re7 Bcd3 Na8 Bde4 Rc4+ Kd5 Rb4+ Nc4 Nb6+ Kd4 Qba2 Kc5 Q2b3
nq3r1q/2B1R1rk/nr1PbQ1r/bBq1QNN1/2nn4/1r4RP/K4P2/6q1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 dxc4 Ke2 fxe6 Ke1 e5 Qf3 e4 Qb3 Nh6 Qd1 Ng8 d4 Kf7 Kd2 Kg6 Kc2 b5 Kb2 e5 a4 c5 d5 e3 a5 e2 a6 e1Q h3 b3 a7 c3+ Ka3 e4 Bb2 g3 Qg4+ Kh7 Nd2 g5 Qe6 g2 Qe8 b4+ Ka4 e3 Qe6 g4 Ba6 c4 Qd6 g3 Qd7+ Ne7 Bc1 c2 Nb1 e2 Rh2 c3 Qe8 b2 Kb3 Be6 Ra2 Nc8 Na3 b1N Bb5 Nd2+ Ka4 b3 Qc6 b2 Qd6 b1R Bc4 Rb6 Qc6 Bb4 d6 Na6 Bb5 Ba5 Bb2 c1R Ra1 c2 Bg7 Rb1 Nc4 c1Q Qf3 Rb3 Ne3 Nc4 Qf6 Qec3 Nf3 g1Q Nf5 e1N Rg2 Nc2 Ra2 Nd4 Re2 Rab8 a8Q Q1e3 Qe4 Qf8 Rh2 g2 Qee5 Qg5 Bh6 Qgg7 Bd2 Qc7 Re4 Qc5 Rh1 Qd8 Rg4 Rf8 Rg3 R8b7 Ne3 Rg7 Nf5 Rg6 Bg5 Rh6 Be3 Qdc7 Bd2 Qb8 Bg5 Qd1 Re1 g1R Re2 Rg2 Bh4 Qg1 Re3 Ne7 Re1 Nd5 Ng5+ Kg8 Re4 Ndc7 Qf4 Qd2 Nf3+ Kh7 Qd8 Ne5 Rg4 Na8 Bf6 Bc4 Qg3 Rb4+ Ka3 Nb3 Bh4 Qdc1+ Ka2 Qc3 Qe7+ Bf7 Qe6 Q3d4 Bd8 Nc4 Bc7 Qh8 Qf6 Nd4 Re7 Rb3 Qge5 Rg3 Rf4 Rg7 Rg4 Bd5 Rg3 Be6 Ng5+
1qkn1n2/Q7/2r1Prr1/K4nP1/1r1n4/1q2R1bB/3PqbqN/N1BbQ1R1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 f6 dxc4 Ba3 exf6 Bb2 f5 Bc1 f4 e4 Kd7 g4 h5 a4 c5 e5 f5 g5 b5 a5 b3 a6 b2 a7 c3 Na3 b1Q Bg2 h3 Qf3 h2 Qf1 f3 Qf2 c2 Ne2 h4 Qg3 b4 Bh3 f2+ Kf1 b3 Qf3 b2 Bg2 h3 Qd5+ Bd6 Nf4 c4 Ke2 f1R Qa5 c3 Kd3 Nh6 Kc4 Rg8 Kb5 Nf7 Be4 Rg6 Ne2 f4 Ra2 f3 Bb7 f2 Rg1 h1N Qb6 h2 Nf4 Ng3 Ra1 h1Q Ne6 Qg2 Bf3 Nf5 Nf4 Qa2 Rh1 b1R+ Bb2 c1N Nc4 c2 Bh5 Ne2 Ne3 c1B Rg1 Qb3+ Ka5 Ned4 Bc3 Bca3 Nd3 Bac5 Nc2 Qf8 Ra4 Nd8 Na1 Ba6 e6+ Kc8 Bg4 Bg3 Qb4 Nd7 Ne5 Be2 Bb2 Bd1 Bc1 Qd6 Qc4 Qdb8 Ra3 Nf8 Bh3 Rb2 Ng4 Rc2 Qb4 Rc4 Qb6 Rb4 Qa6+ Rb7 Qc4 Qa2 Nb3 Nf3 Nf6 Rb4 Ne8 Nd6 Na1 Qc2 Rd3 Qb3 Qg4 Be3 Nf6 Nd4 Qf4 Re1 Rh1 f1Q Ng4 Qfe2 Qf2 Rf1 Qe1 Rff6 Nh2 Bef2 Rg1 N6f5 Re3 Qd6 Qf1 Rab8 Qe1 R8b6 a8Q+ Qb8 Qa7 Rd6 Qh7 Rc6 Qa7
N7/qbqRqP2/1r3bk1/nBpP2nQ/2n4Q/b2n1P2/r2NrBR1/4n2K b - - 0 1 illegal: Other
bK4bb/2R5/1n1P2P1/P1rQ1R2/pBbqn1q1/k1N5/B1qQ1n2/r1N2bb1 b - - 0 1 illegal: No possible last move
1r1q2N1/K2n2Pr/b1b4R/B2pq2b/n1qPQ1n1/1BR1P1b1/1b1Q1b1N/1k6 b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 g5 h4 gxh4 b5 a6 Rh2 axb5 Rh3 bxc4 Rh1 c3 Kf2 Ke7 g4 Kd6 a4 Kd5 d4 Ke4 a5 b5 g5 h5 g6 c5 a6 f5 a7 c2 g7 f3 Rh3 b4 Rh2 f4 Rh3 c4 Rh2 c3 Ra4 h3 Bg2 b3 Na3 h4 Be3 c1B Nb5 b2 Rh1 b1N Bd2 c2 Ba5 h2 Qd2 h3 Qd1 Bb2 Rc4 c1B Rb4 Nc3 Rc4 Nh6 Rc5 Bd6 Bc7 Ng4+ Kf1 Na4 Rc2 Be3 Qe1 Ba6 Qb4 Bf2 e3 Kd3 Bb6 Rh7 Rc4 Bc7 Nc3 Kc2 Nd5+ Kb1 Qc3 d6 Nf6 Nd7 Ng8 Rc8 a8Q Rb8 Qd2 d5 Ba5 Bb5 Qa7 Bc6 Rc3 Bd6 Qc5 Be5 Qe7 Bc7 Ne2 Bd6 Ng3 Be5 Rg1 h1Q Qh4 Qh2 Rh1 Be1 Qe7 f2 Ke2 f3+ Kd3 Bd6 Nf1 Qe5 Nh2 f1B+ Qe2 f2 Be4 Qf5 Qh4 Bg3 Qe7 Qf4 Bf5 Qfc7 Qe4 Qe5 Bg6 Bg2 Bh5 f1Q Bg6 Bef2 Bh5 Qc1 Qd2 Ngf6 Bd1 Ng4 Nf3 h2 Bb3 Ra8 Rg1 h1B Nh2 Rb8 Rf1 Bg1 Rf6 B1f2 Rh6 Bf1+ Qe2 Qdf6 Rc5 Qd8 Rc4 Ngf6 Rc5 Bh3 Qd2 Bf3 Rc2 Bh5 Rc4 Ng4 Rc5 Nab6 Rc2 Ba3 Kc3 Bb2+ Kb4 Bf1 Rc5+ Bd3 Rc4 Qf1 Rc3 Na4+ Bb6 Be1 Ka5 Bef2 Bc7 Rb5+ Ka6 Rb8+ Ka7 Qe2 Qg2 Ba6 Ba5 Qc4 Qe4+
4R1NK/2n1R1P1/1q2qbk1/r1pN1nr1/Bq1qb3/1P4B1/1Q1r2bP/2q3Qq b - - 0 1 illegal: No proof kernel
4kB2/1QP1N2b/nb2Bq1r/rn3RQ1/n1K1n3/br3nNP/1PpRn3/3q4 b - - 0 1 illegal: No proof kernel
2RqBb1K/n2N1brb/2n1N3/3R4/7B/q1Q5/1nPprbPP/1Q1n1bnk b - - 0 1 illegal: No proof kernel
2b1Nb2/3k2b1/2rB2nq/Q2n1rPp/qRQnB3/1bP2R2/2NP3q/3nK1n1 b - - 0 1 illegal: No proof kernel
2r5/3B4/rn2rPN1/NK1P4/R1r1QbQP/1n1bk2p/q2b2Rr/q1Bnb3 b - - 0 1 illegal: No proof kernel
2bnQrq1/1n5B/qP5K/N2b2N1/pPb5/Pn2R1b1/5R2/rrkBbrQ1 b - - 0 1 illegal: Other
r7/NbBq4/k1qRNb2/r4Q1q/2R1QpBP/P1n1qPr1/n1K2n2/4b1n1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 h5 b4 hxg4 b5 a6 Qb3 axb5 Qc2 bxc4 Qd1 c3 d4 Kd7 h4 Kc6 f3 Kb6 d5 c5 d6 g5 d7 e5 a3 f5 Bg2 c4 Be3+ Ka6 Qc1 b5 Kd1 c2+ Kd2 g3 Ne2 c3+ Ke1 b4 Bd4 f4 Bf1 g4 Bb6 e3 Rh2 b3 Rg2 e4 Qd1 c1Q Ra2 b2 Rh2 c2 Nbc3 b1N Nb5 g2 Nbd4 g1N Nf5 g3 Ng7 g2 Rh1 Rh5 Rh2 Nf6 Bc7 Bb7 Rh3 Ra5 Ra1 Nc6 Nc3+ e2 Bd6 Qe3 Qd5 Nb4 Qh5 Be7 Rg3 Na2 Rg6 Ng4 Nb5 Nbc3 Na7 Bf6 Ne6 Nf2 Bc7 Qe7 d8Q c1Q+ Qd1 Qd7 Qf5 Qc2 Qdd5 Qca4 Nd4 Qac6 Ne6 Qec5 Kd2 e3+ Kc2 Q5b5 Qg5 e1B Qe4 e2 Rc1 Qbd5 Qg4 Qh5 Qgf5 Ngh3 Qee5 g1R Qee4 Rg3 Bg2 Ng1 Bh3 Bd2 Bg4 e1Q Rg8 Qe3 Rd8 Qdd4 Rd6 Be1 Rb1 Qd5 Rb4 Qdd4 Rc4 Qd5 Bb6 Qd7 Bd8+ Q5c6 Bc7
2bqrb2/1n1k1B2/5N2/B1rP1qnK/1PPNp2Q/rb2r1R1/5n2/1RQ2q1q b - - 0 1 illegal: No proof kernel
5B1Q/bpb1Rbb1/4kNR1/2Qn2r1/N3nP2/1P2br2/1qP1n3/B2Kbnq1 b - - 0 1 illegal: No extended proof kernel
n3bNK1/2n1b3/1Bbbrq1R/rpP1PP2/1k6/N4Q2/Q3BbbR/b1b2q2 b - - 0 1 illegal: No proof kernel
2k1Q3/2q1b1qP/3Pb1B1/5r1n/np2r1P1/1Qp1RNb1/2KnbN1R/B3bq2 b - - 0 1 illegal: No proof kernel
r7/QK2RP2/nn1RPP1r/B2np3/2b2n1b/n3n1Q1/1p2kN1n/2q1Nb1B b - - 0 1 illegal: Other
B3R2n/1nq2P2/5q1Q/1nrqp1rr/1kb1b2P/1N3Pq1/3RNp2/KQ2B1b1 b - - 0 1 illegal: Other
2qN1R2/n1b1bpnK/1k6/2PPQ1r1/B2rpq2/1rP2n1n/2bB2Q1/1Nq1R3 b - - 0 1 illegal: Other
1nqbrQr1/nkBP1PRK/4pp2/4qP1b/3b3n/N1qr1q1N/2B1R3/Q7 b - - 0 1 illegal: Other
nK4b1/p3rbB1/qQ1r4/7q/1RPq1bP1/nnNN4/1pbPQR2/2rB3k b - - 0 1 illegal: No proof kernel
K7/4b1Rb/1BnBp3/R1QP4/1nkNn2q/P1NnP2p/1r2r1Qr/n2n2b1 b - - 0 1 illegal: No possible last move
2Q2Rr1/b2b1b1B/K2p1nPp/2N3BR/3P2nb/1NnPb3/1r3kq1/3r1b1Q b - - 0 1 illegal: Other
1kq5/n1n5/1K6/2P1rP2/B2B1bQ1/pP3NR1/2nRqpqN/1bnbr1Qb b - - 0 1 illegal: No proof kernel
4r1r1/2rn1Q1q/6nP/k2R1bq1/3Q1B2/n1NR2b1/pN1PBPrp/1qn1K3 b - - 0 1 illegal: No proof kernel
2nnbBK1/2N2nn1/Pp2pb2/2R2P1Q/BrqP1q2/1qr1q1b1/1N1QR3/1k6 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 dxc4 Qg4 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Ke5 c5 g4 h5 d4 h3 f4 b3 a4+ Kb4 g5 h2 a5 e3 g6 c3 a6 h4 f5 e2 g7 e1B Bg2 h3 Bd2 b2 Bf1 e6 Qc2 c4 Bf4 Ne7 Kf6 Qd5 Kf7 Nbc6 g8Q Nd8+ Ke8 Rb8 Qc1 Kb3 Ra5 c2 Be2 c3 Na3 Ka2 Bh5 b1Q Qg2 Qc4 Qc6 Bg3 Rd5 Qbb3 Qe3 c1Q Qd6 c2 Qc3 Qe3 Bg5 c1Q Bf7 Bg7+ Bg8 Bf6 Kf8 Bd7 Qe5 Nc8 Ne2 Be8 Nb5 Kb1 Re1 h1N Nf4 h2 Nc7 Nf2 Bh6 h1N Re2 Ne4 Rc5 Ned6 Qd2 N6f7 Nd3 Qf4 Bg7 Rh3 Nb2 Qg1 Qd5 Qge3 Qd6 Bf2 Bh7 Ng3 Bg6 Nh5 Kg8 Bg3 Bf8 Ng7 Qe7 Rh1 Bh5 Rc1 Bf3 Rc3 Bc6 b6 Ba4 Rb7 Nb5 Rc7 Qd7 Rc6 Qb7 Rc7 Qf3 Rc6 Qh5 Rc7 Re5 Rc5 Nc7 Rb5 Rd5 Rb4 Rc5
1r3r1n/2R1B2P/b6N/R1p1pBN1/1QqnK1Pb/Pb4r1/4b2k/n1rQq3 b - - 0 1 illegal: No proof kernel
n1rRn2Q/3b3P/pbrpbPqQ/2qN1B2/NB3P2/1n4k1/q2bn3/5R1K b - - 0 1 illegal: Other
2r2nRN/B1b2P1k/r1Ppqnn1/2b1N3/1b3q2/1QR1n1Qp/r3bP2/2K4B b - - 0 1 illegal: Other
1nb3r1/rQbq1P2/bP2brBN/4k1P1/7K/1nqpQ2N/n3pr1R/B1R5 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 g4 Kf7 c4 Ke6 f4 h5 Kf2 a5 b4 d5 b5 e3+ Kg2 h3+ Kg3 h4+ Kf3 h2 c5 e2 b6 e1R c6 d3 f5+ Ke5 f6 h3 Kg3 a3 f7 a4 c7 a2 g5 d2 Na3 d4 Rb1 a1Q Bb5 d3 Ba6 Qc3 Bb7 Rf1 Nc2 a3 Rb4 a2 Bc6 a1N Nd4 Nf6 Qg4 d1R Bb2 Nb3 Qd7 Rd2 Ne6 Ra7 Bc1 Nd5 Rh4 Rg8 Rc4 Nb4 Bb2 Rdf2 Rf4 Na2 Qe8 Qd7 Ng7 e6 Bb7 Bd6 Be4 Ba6 c8Q Bc7 Rg4 Rf6 Ne2 R1f2 Rc1 h1B Ng1 h2 Bg6 Bhb7 Nh3 h1B Kh4 Bhd5 Nf5 Bdc4 Ba1 Bcd5 Qcd8 Bc8 Rg2 Ke4 Rd1 e5 Ng7+ Qf5 Rc1 Kd4 Qc6 e4 Qde8 e3 Qb7 e2 Rh2 Qd7 Qe6 Bdc4 Qe7 Bd5 Qc5+ Ke5 Nf5 Ke6 Nh6 Ke5 Qcc6 Bdc4 Qf3 Be6 Qe3+
nK4R1/1Pnq1p1p/4Q1P1/q3RP2/kr1rbrq1/2Bq2B1/bN1N2Q1/3r2b1 b - - 0 1 legal: proof: c4 g5 d4 d5 a4 b5 h4 gxh4 e3 bxa4 Be2 e6 Bf3 dxc4 d5 Ke7 d6+ Ke8 Bd5 exd5 Kd2 Kd7 Kc3 Kc6 Kb4 a5+ Kc3 Kb5 Kd4 c5+ Ke5 c3 f4 a3 b4 h3 g4 c4 g5 h2 d7 a2 e4 a4 f5 c2 g6 d4 Nd2 a3 Qg4 c3 Qh5 d3 Ndf3 d2 Qg5 d1Q Bf4 c1Q Qg4 c2 Ne2 Bc5 Rb1 a1R Ne1 a2 Qg2 Ra4 Bg3 Qe3 Nf3 c1R Nf4 Rc4 Nd3 Ne7 Nd2 Na6 Re1 h1B Nb2 Rd4 Nbc4 Nd5 Re2 Qdg5 d8B Qd3 Ba5 Qg4 Rc1 Ba7 Kd6 Be6 e5 Rb8 Rb1 Nac7 Re1 Bd7 e6 Na8 e7 Be6 Re5 Rf4 Rb3 Bg1 Rc3 Rb1 Rc2 a1Q e8Q+ Ka6 Kc6 Ndc7 Ra2 Bd5+ Kd7 Kb5 Qe6 Rb6 Kc8 Rd6 Kb8 Rd4 Qh2 Be4 Qg2 Rb2 Nb3 Rf2 Nbd2 Rf4 Rc2 Ra2 Rc3 Ka4 b5 Rb2 b6 Rb4 b7 Qa3 Ne3 Ba2 Nec4 Rbb6 Rc1 Qc5 Bc3 Qa5 Rb1 R6d5 Rb5 Rdd6 Rbc5 Rb1 Rcd5 Rdb6 Rd8 R6b4 Nf3 Q1d2 Re8 Rd1 Rg8 Q2c2 Nfd2 Qb3 Na3 Qbd5 Nac4 Qd7 Nb2+
1R4bB/1bb5/1p2b2r/n1Q2PnR/1P3r2/2PQ1nN1/pbN2bK1/1n1kq2B b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 a5 c5 a6 cxd4 Kd2 Qa5+ Ke2 Qxa6+ Ke1 Qa2 b4 Kf7 g4 Kf6 f4 h5 Kf2 d5 g5+ Kf5 g6 e5 g7 a5 Kg2 h3+ Kg3 b6 Bb5 e3 Be2 Ke4 Bg4 d3 Ne2 a4 Qe1 d4 Qf2 h4+ Kh2 a3 Rf1 d2 Kg1 d1N Bh5 d3 Nd4 h2+ Kh1 d2 Be8 e2 Bh5 e1B Nf3 Nd7 Bg4 Nh6 g8Q Bg7 Qb3 Nc3 Qa4 d1N Nd4 Qe6 Qe2+ Ne3 Qa7 a2 Bd2 Nf7 Bc1 Ng5 Bh3 Bf2 Na3 Nb1 Qd1 Nc4 Nf3 Na5 Bg4 Rh6 Nd2+ Ke3 Bf3 e4 Bg4 Ne5 Qd7 Nef3 Kg2 Bb2 Rh1 h3+ Kf1 Bg3 Rg1 h1B Qc6 h2 c3 Kd3 Nc2 e3 Qc5 Qe8 Bh3 Be6 Bg2 Rd8 f5 Rd4 Qc7 Bf4 Qc5 e2+ Kf2 Bc7 Ne4+ Nbd2 Qf1 Nb1 Ng3 Rf4 Be3 Bg8 Bd4 Kd2 Bh8 Be6 Ne1 Kd1 Nc2+ e1B+ Ke3 Nd2 Qd3 Qe7 Bc6 Bhd5 Rg2 h1B Rh2 Kc1 Rh5 Ndf3 Ke2 Bg8+ Kf1 Bde6 Bd5 Nd2+ Kg1 Kd1 Ba8 Bb7 Kh2 Bbc8 Bh1 Bf2 Kg2 Bb7+ Qdd5 Bc1 Qe4 Ndf3 Qd3+ Nbd2 Rb1 Qe8 Rb3 Bb2 Ra3 Qe7 Qe4 Nb1 Qee3 Nb3 Ra8 Na5 Qe4 Qg7 Qec4 Qe5 Rb8 Qe1 Qd3+
K4bN1/2k2bQr/P2R3P/1nqp1BrP/1rr1p1rB/1Rb1b3/r7/Qn4N1 b - - 0 1 illegal: Other
2K1R2n/bn2pqrn/2P1PRBb/1b1P1Q1n/3p2rN/3pB1k1/1r6/1NQn4 b - - 0 1 illegal: No proof kernel
k2n4/n2n3p/pQ1N2q1/2QR1b1n/P2Bpb1P/2P1rr2/1N1q2B1/1nr1R1K1 b - - 0 1 legal: proof: g4 c5 b4 cxb4 d4 f5 e4 fxg4 e5 d6 Kd2 dxe5 Ke2 exd4 Ke1 d3 a4 Kd7 f4 Kc7 Kf2 e5 h4 b5 c3 Kb7 f5 g5 f6 d2 f7 g3+ Kg2 b3 Nh3 g4 Na3 b2 Ng1 b1N Qc2 d1R Qe4+ Nc6 Qc4 a6 Rh2 b4 Rh1 b3 Qd5 b2 Nb5 Na3 Na7 b1N Rh2 Nb5 Ra3 Bh6 f8Q Bf5 Kh1 Nf6 Nf3 g2+ Kg1 Bf4 Qdd6 Nd7 Qfe7 Re8 Be3 Rc1 Nc8 Nba7 Kf2 g1Q+ Ke2 g3 Bd4 g2 Ra1 Rb8 Qg6 Ka8 Qc5 Qg5 Qgd6 Nd8 Nd2 Qg6 Rh1 Qh2 Kf2 g1N+ Bg2+ Rb7 Ra2 Ne2 Re1 Ng3 Nc4 Nh5 Qdb6 Rf8 N8d6 e4 Qbc7 Rb2+ Kf1 Rf6 Q7b6 Re2 Rd2 Re3 Nb2 Rf8 Rdd1 Rf7 Bh1 Qd2 Bf3 Re7 Bg2 Re5 Kg1 Rd5 Bg7 Rdd3 Be5 Rf3 Bd4 Rde3 Bg7 Qc2 Rd5 Qd2 Bd4
3bn2n/5P1B/q1Q1p1P1/3Qn3/qNr4R/1npbbnK1/2p1r1PR/B1kN4 b - - 0 1 illegal: Other
2NR1kqq/qQp2Pp1/Q1Kp1R2/b6q/4r1Pn/2BbB1r1/N1q1P3/b4n2 b - - 0 1 illegal: No proof kernel
1kqRq2n/Bp1p1q2/5nN1/1r1P1QPb/1p1q3r/P1r1b2Q/2Nq2B1/1K2R3 b - - 0 1 illegal: Other
2nq4/4q1pp/RBBPN1Nk/1b2P2Q/6bp/R2Pn3/1n1Q4/1Kb1rqrb b - - 0 1 illegal: Other
3nQ2K/1r1p4/qk3NB1/RR1Prbp1/2Q3P1/b2Pr1p1/qn3Nq1/r4B1b b - - 0 1 illegal: Other
q5Qr/2np1Rp1/7b/1bP3Bq/1k1K1RP1/1PN3nb/B3Qpr1/N1qn2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 f5 cxd4 f6 h4 Qd2 exf6 Qd1 f5 Qd3 f4 Qg3 hxg3 Kd2 Ke7 Kd3 Kd6 h4 Kc5 c4 a5 e4 f5 b3 g2 h5 f3 e5 f2 h6 f4 h7 f3 e6 a3 e7 a4 e8Q a2 Qe1 a3 Nh3 g1B Nc3 Nh6 Be3 Kb4 c5 Ba6+ Ke4 d3 Rc1 a1Q Ne2+ d2 Nc3 d1N Ng5 a2 Be2 f1B Rc2 Be7 Rc1 Bb5 Ne6 Qe8 Bd3 Bh3 Kd4 Bg5 Qe2 Qh5 Bb1 Na6 Rh2 Ra7 Rf2 Nc7 Rc2 Qb2 Bf4 a1Q Ba2 Qbc1 Rb2 Rb8 h8Q Rg8 Qh7 Rh8 Qg8 Ra8 Bg3 Bd2 Bh4 Ra7 Bg5 Nf5+ Ke4 Ng3+ Kd4 Bf4 Rd2 Ra8 Rd3 Bd2 Re3 Rf8 Re4 Rf7 Rf4 Rf5 Bb1 Qa8 Ba2 Re5 Rf7 Re3 Nf4 Re6 Ng2 Bf4 Ne1 Rf6 Bh4 Bh6 Bg5 Re6 Qd2 Re2 Nc2+ Ka5 Na1 Kb4 Qe3 Rb2 Rf1 Rg2 Qf2 Ne3 Qe2 f2 Rd1 Nh1 Rd3 Nd1 Rdf3 Ng3 R3f4
1nn2bRr/1K1R2Pb/3N3B/5bq1/rBprQ1pQ/4b3/p4PP1/1bNbk3 b - - 0 1 illegal: Other
rN1R1bbb/1n4rb/2Qn1PQ1/p3p1R1/kB2p2N/2K1B3/PnPn4/b1q5 b - - 0 1 illegal: No proof kernel
2rb3r/1b2rPbq/3P2r1/3pk1bn/3nN2n/2R1pBP1/K2Q2pQ/N1R1B3 b - - 0 1 illegal: No proof kernel
2bnn3/2Qrp1pN/5r1P/1pBP3N/3rPb2/r3RQnB/3qR1n1/1K3kb1 b - - 0 1 illegal: Other
q4n2/b2r3p/1q1QnBRk/N1N4q/KPRQ1q1p/1Br2P2/2bpP1r1/6r1 b - - 0 1 illegal: No proof kernel
1kq1b1qQ/4ppR1/pn5r/4r3/1PP5/P1K1Bqr1/NR1Nq1nQ/br3B2 b - - 0 1 illegal: No proof kernel
2B2r2/nPRqn1Nq/1pp3R1/2Q3b1/3BQpbk/3Pn3/3bPK1N/2brn3 b - - 0 1 illegal: No proof kernel
n4R1q/1pB1R2q/1Pkn2r1/6q1/n6Q/bPN1pP1K/pNrBnQ2/2q4b b - - 0 1 illegal: Other
1Qnq1r2/1k3PK1/3q1BB1/4p2r/p2bp2p/bP3NN1/3P1Qbr/1q1R2Rn b - - 0 1 illegal: No possible last move
N5r1/1Rr1pp2/r3Q3/2k1bQBq/3N1pRp/1b1PPPqB/1K2n3/3qn2n b - - 0 1 legal: proof: c4 a5 h4 d5 b4 axb4 h5 dxc4 h6 b5 Rh3 g5 Rh1 Ra3 Qc2 Rh3 Qf5 Rxh6 Qe4 Rh2 Qf4 gxf4 Kd1 Kd7 Kc2 Kd6 a4 h5 g4 c5 f3 h4 g5 b3+ Kc3 b4+ Kb2 Nf6 d3 Na6 g6 Be6 g7 Nh5 g8Q Qa5 Nd2 c3+ Kb1 c4 e3 b2 Ra2 Kc5 Qh7 Rg8 Ra1 c2+ Ka2 b3+ Ka3 b1Q Qh6 b2 Bg2 c3 Nc4 Nb4 Nb6 Bg7 Ne2 Bb3 Rg1 Be5 Bh3 Ng3 Na8 Nh1 Qe6 Rhg2 Ra2 R2g6 Nd4 Qb5 Qf5 Ra6 a5 Qa1 Rg2 b1Q Bb2 c1N Rg4 c2 Qe6 Ne2 Qf5 Rag6 a6 Qe1 a7 c1R Bc3 Qb1 Rb2 Qg3 Qe6 Qc2 Rb1 Qd1 Kb2 Qa5 Qc8+ Kd6 Nb6 Bf6 a8Q Be6 Nc2 Qgg1 Qaa6 Qh5 Ka1 Qg3 Na8+ Kd5 Be5 Bg7 Nd4 Nc2+ Ka2 Ne1 Bf6 Rc7 Rb7 Kc5+ Kb2 Bb3 Bg5 Be5 Qf6 Rh6 Qff5 Ra6 Qce6
kr2nR2/n3pR2/NPbp1NPn/K6n/B6q/2Q1p2p/1QPr1r1n/2B3b1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Kd2 a5 b4 h5 f4 a3 g4 h3 b5 h4 f5 d6 b6 Kd7 f6 Kc6 f7 Kb7 g5 d3 Kc3 h2 g6 a4 Kb4 d2 Qf3 d1R Nh3 a2 Qf2 a3 Ng5 h3 Bd3 Rd2 Be2 Nc6+ Kb5 Na7+ Kb4 Bg7 f8Q Bd7 Bd1 Nh6 Qe8 Rf8 Bh5 Bc6 Qf4 Bd4 Qf5 Bg1 Nf3 e3 Qg5 Rb8 Qf6 Ka8 Ne5 Qc8 Qf3 Qg4+ Ka5 Qh4 Nc3 Rf6 Rb1 a1N Na4 a2 Nc5 Rf5 Bg4 Nb3+ Kb4 a1N Qh8 Nd4 Ka5 Ne6 Na6 Rf7 Nd7 Nc7 Qb2 Ne8 Qff6 Rf8 Qfc3 Rff2 Nf6 Nb3+ Kb4 Nd4 Bd7 Nf3+ Ka5 Be4 Bb5 Bc6 Ba4 Rg2 Ng8 Bf2 Rf1 h1N Ra1 Ng3 Rb1 Rd4 Bd2 Bg1 Ra1 Nh2 Rf8 Rd3 Raf1 Nh5 Bc1 Rdd2 R1f7 Rgf2 Nf6
N2k2QR/P4Knb/Qp3N1p/qp5r/P1p2P2/r1r5/n1Bb1n1B/1r1b1R2 b - - 0 1 illegal: Other
2N1Nrn1/1n1q1PQ1/1BP2r1p/Q2p1q1k/n1R2pbb/nn5P/6Kp/2B3R1 b - - 0 1 illegal: No proof kernel
6qq/4P1r1/B1Qp1Pqb/B3k1qq/P3N1pQ/3N1b1R/1p2npn1/1rR4K b - - 0 1 illegal: No proof kernel
1BbBn2r/Q1Pq3N/r3N1Rn/1q1p1p2/1R2np1p/b2k1K1P/1P6/n1n1Q3 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 bxa4 d4 dxe4 d5 g5 d6 gxf4 Bc4 c6 Bd5 cxd5 Ke2 Kd7 c4 Ke6 g4 Ke5 g5 h5 h3 f5 c5 a5 g6 e3 g7 Ke4 d7 e5 c6 a3 c7 a4 Qe1 h4 Ra2 Nh6 g8Q Ra6 Ra1 a2 Qd2 a3 Kf1 e2+ Kg2 e1Q Qa5 Kd3 Ne2 e4 Qh7 e3 Qe7 Qb4 Nbc3 Qb5 Nd4 e2 Ne4 e1N+ Kf2 Nf3 Ng5 Qe8 d8B Nd7 Nde6 Nf6 Rg1 Nd2 Nh7 Qed7 Rg6 Nde4+ Kf3 Ne8 Qeb4 Be7 Be3 Bc5 Rc1 a1N Rc4 a2 Qe1 Nb3 Rb4 a1N Bf2 Bf8 Ba7 Nc1 Bb8 Be7 Qb6 Bd6 Qa7 Be7 Rc4 Ba3 Rb4
Nbr2r2/2r3Br/N1n3n1/p2q4/kq1p1B1Q/1pR1PPpb/R5P1/q4QK1 b - - 0 1 illegal: No proof kernel
1k1q3N/4q2q/1p6/bBbQPpP1/1B2p1R1/1nrQn1KN/6pP/1q1R2rb b - - 0 1 illegal: No proof kernel
1qN1Rn1K/B1pr2p1/2Qb2QN/1Rpq2Bq/2P3P1/2pP4/2bqrn2/3k3r b - - 0 1 illegal: No proof kernel
1Br3R1/p2N1qQn/k2pr1b1/pPnP1q2/1b4nK/1R1P3n/3b1Np1/5QB1 b - - 0 1 illegal: Other
1n2R1b1/Kp1kbR2/B1qNP3/B1rp3P/3PQp2/rp1n2bn/1p2Q1Nr/8 b - - 0 1 legal: proof: g4 c5 f4 h5 b4 hxg4 f5 cxb4 f6 a5 c3 a4 Qb3 axb3 Bb2 exf6 Ba3 f5 Bc1 f4 Kf2 d5 a4 f5 h4 g5 e4 f3 Ke3 f2 Kd4 f4 a5 g3 a6 b2 a7 g4 e5 g2 c4 g3 c5 b3 c6 Nh6 c7 Be7 Ba6 f1N Na3 Bd7 c8Q Rh7 Qc2 Nf7 Nb5 Qc7 Qe4 Be6 Nf3 g1R Ne1 g2 Nd6+ Kd7 d3 Qc2 Bd2 Ne3 Ba5 Qc6 Rh2 Rf1 h5 g1B Rc2 Bf2 Ng2 Ng5 Ra3 Bg3 Rc4 Qa4 Kc5 Rh1 Kb6 Nd1 d4 Rh2 Rc5 Bg8 Rc7+ Kd8 Ra1 Nf2 Rac1 Nd3 R1c5 Bf8 Rf7 Be7 Rc8+ Kd7 Rcf8 Nh3 Re8 Nc6 Bd2 Rh6 Ba5 Rc8 a8Q Nb8 Ka7 Rc4 Nb5 Rhc6 Nd6 R6c5 Qe2 Qc6 Qe4 Ke6 Qe1 Ra4 Qe4 Nd7 Qc8 Ra3 Qc7 Nb8 Qb6 Nhf2 Qb5 Nh3 Qc4 Kd7 Qb5 Ne1 Qbe2 Nd3 e6+
1Bnr1rk1/Q1PNP3/qpR4N/r4pRp/P2n4/b2b2p1/q1p3r1/3QKB2 b - - 0 1 illegal: No possible last move
QN2qkb1/P1RPbq2/2nR1pp1/Nr2b3/1p1pKP2/p4nr1/1B5b/Q1B5 b - - 0 1 illegal: No proof kernel
KNQ3bn/3P4/3P1q1n/2N3n1/2Pb1RB1/1N1r3r/3kprr1/n3R1R1 b - - 0 1 legal: proof: h4 f5 e4 fxe4 h5 a5 h6 b5 Ne2 b4 Ng1 b3 axb3 gxh6 Nh3 h5 Ng1 h4 c3 d5 b4 a4 Ra2 d4 b5 c5 cxd4 a3 b3 c4 Bb2 axb2 bxc4 Ra5 b6 Ra8 Na3 b1R b7 Ra1 Nb1 Nc6 b8R Nxb8 Ke2 Kf7 Ke3 Kg6 g4 Kg5 d3 e5 f3 h5 d5 h3 d4 h4 d6 h2 d5 h3 d7 Ra3+ Qd3 Bc5+ Kd2 Kf4 g5 Nc6 g6 Nce7 g7 Bd4 Be2 Ng6 Nc3 Rf1 Na4 Nh6 g8R Rf2 Nc5 e3+ Kc2 Qf6 Qf5+ Kg3 f4 e4 Nf3 Rd3 Rd1 h1R Re1 h2 Nd2 Rg1 Bg4 e2 Ndb3 h1N Rf8 e3 Raa1 Rh7 Qe6 Nh8 f5 Kf4 Qe8 Ba6 Qc8 Rgg2 Rg1 Ng3 Rae1 Ne4 Rf7 Nc3 Kb2 Ne4+ Ka3 Bb5 Kb4 Bc6 Ka5 Ng5 Kb6 Ba8+ Ka7 Bc6 Rb1 e1N Kb8 Nc2 Rbe1 e2 Ka7 Bb5 Ka8 Ke3 d6 Ng6 Na6 Na1 Nb8 Nh8 Rf8 Qe7 f6 Bc6+ Qb7 Bd5 f7 Be6 Qc8 Qf6 Re8 Qe5 f8N Bg8 Ne6 Qf4 Rf8 Qf6 Nc1 Kd2 Nc5 Nf5 Rf7 Rhh3 Rf8 Nh6 Rf7 Qg6 Rf4 Qf6 N1b3+
1n3B2/1R1qR1KB/1N1pb3/n2kBr2/b2P3p/1n2Q2P/P1nr3b/R6b b - - 0 1 legal: proof: f4 a5 c4 g5 b4 axb4 c5 b3 c6 f5 fxg5 b2 Qb3 f4 Qb6 cxb6 e3 b5 exf4 b4 f5 Nxc6 Nc3 b3 Nd5 Nb8 Nc7+ Kf7 Ne8 Kxe8 Ke2 Kf7 Kf3 b1N Ke4 b5 Ke5 h5 g4 b2 d4 b4 f6 b3 Bg2 Nd2 Ne2 b1B Bf3 b2 Bb7 Ra5+ Kf4 Ke6 g6 Bc2 f7 b1B g5 Ba4 g7 Nb3 g6 Be4 Re1 Bh1 Be4 d6 Be3 Qd7 Nc3 h4 h3 Rf5+ Kg4 Rf2 Kg5 Rd2 Nd5 Rh5+ Kg4 Rf5 Nb6 Bb7 Bf4 Bd5 Be5 Bc4 Bd3 Bcd5 Na8 Bc4 Re2 Kd5 Bc2 e6 Bd3 Be7 f8B Bg5 Kh5 Ne7 g8Q Nec6 g7 Nca5 Kg6 Bf4 Qh7 Bh2 g8R Nc5 Qe7 Ncb3 Bf6 e5 Rg7 e4 Be5 e3 Nb6+ Kc6 Ree1 e2 Qg5 Bcd5 Qe3 Be6 Reb1 e1N Re7 Nc2 Kg7 Rh5 Bh7 Rf5 Nc4 Kd5 Rb2 Nc1 Rb7 Ncb3 Nb6+
R1b3bk/B3p1P1/3nP1P1/3K2NR/4Nr2/r2Rpr1q/3qp2r/N1Q3b1 b - - 0 1 illegal: No possible last move, all moves rejected
1K2B1r1/1nPPN1rR/1qbk1Qq1/7r/3b4/R1b2n1P/3RB3/Bb1b1qb1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 hxg4 c4 e5 Na3 exf4 axb5 cxb4 c5 d5 Nc4 dxc4 Kf2 Kd7 d4 a5 e4 g5 d5 f5 b6 g3+ Kf3 b3 b7 c3 c6+ Kd6 h3 g4+ Ke2 g2 Kd3 c2 Kc4 a4 Kb5 b2 Rb1 f3 Be2 f2 Bf3 f1B+ Be2 g3 Qe1 a3 Qd1 a2 Qd4 a1B Qd3 f4 Qd4 f3 Qa4 f2 Qa7 Rh5 Rh2 Bg7 Qa6 Nf6 Bd2 c1Q Bc3 Nfd7 Nf3 g1B Nh4 g2 Ng6 Bd4 Ne7 Qc2 c7+ Nc6 b8R Bb7 Rc8 Nc5 Kb6 Ne5 Re1 Qd7 Rh8 b1B Rh7 Rg8 Ka7+ Bc6 Bb2 Rg7 Kb8 Nb7 Bc3 Nf3 e5+ Kc5 e6 Qd6 Rd1 Qg6 Bb2 Bc3 Rd3 Bd4 Ra3 Bc3 Bd3 Be2 Bc4 Bd1 Be2 Bd4 Bc3 f1Q Bb2 Qdg3 d6 Qgf2 d7 Kd6 Bc3 Bb2 Qb6 Bc1 Ba1 Bcb2 Qa5 Bdc3 Qg5 Qb6 Qf6 Bcd4 Nd5 Bbc3 e7+ Kc5 e8B Rg8 Qg5 Kd6 Qh6 Bge3 Ne7 g1R Bb5 Rg4 Rd2 Bg1 Qf8 Qh6 Be2 R4g7 Qf5 Qg6 Qf6+
bKB2q1B/P3q1Nn/q1Q5/5rn1/R3P2q/qB2r2n/2q2RP1/1bkr2R1 b - - 0 1 legal: proof: h4 e5 d4 a5 b4 axb4 f4 g5 d5 g4 d6 exf4 Qd3 Bh6 Nd2 Bg5 Ndf3 gxf3 hxg5 cxd6 Qd4 d5 Qd1 d4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Ke5 Kc4 Ke4 Kb5 h5 c4 d5 a4 b3 c5 b2 c6 b1Q+ Kc5 b5 e3 h4 g6 f2 g7 h3 c7 f3 Kb6 d3 a5 d2 a6 h2 a7 b4 Ra4 d4 Nh3 f4 Ra5 b3 Ba3 d3 Bc1 b2 Rg1 h1Q Qe1 d1N Qe2 d2 Ra2 Na6 Ra1 Bb7 Ra5 Nf6 g8R Rh5 Rag5 Nh7 Rg3 Qc2 R8g5 b1B Ra5 Nc5 Rg6 Ne6 Bb2 Qf6 Rd5 Re8 c8B Ba8 Rd3 Rb5+ Ka6 Neg5+ Rd6 Qe5 Rc6 Qd6 Bc3 Qa3+ Ba5 Rc5 Qb5 Re7 Bc4 f1Q Bd7 f2 Qb6 f3 Rc7 Qe2 Rd6 f1Q Rf6 f2 Nf4 Qh4 Nh5 Rb5 Bg8 Kd3 Bc8 Qfe1 Bd5 f1Q Rc4 Nf2 Ra4 d1R Bc3 Nfh3 Bb3 Rc5 Be5 Kd2+ Qb5 Qe1f2 Rf4 Rd5 Bh8 Kc1 Ng7 Q1e1 Kb6 Re6+ Qc6 Qa6+ Kc7 Qeb4 Bb7 Qe7+ Kb8 Ree5 Rf7 Rd3 e4 Re3 Bc8 Qff6 Bd5 Qf8 Bb3 Q6e7 Rff1 Rf5 Rf2
b1N1nN2/1nq1RKR1/2rRP1r1/qkrN4/1Prq4/7B/1q3P2/rb1Q3n b - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 e5 Nd2 fxg6 Nb1 g5 Ra2 g4 Ra3 Bc5 Ra1 Bf8 h4 e4 Bd2 e3 Bh3 exd2+ Kf1 Na6 Kg2 Nf6 Kh2 Nb8 Bf1 Ng8 Kg3 Ne7 Kg2 Ng8 Nf3 g5 Kg1 g3 Kg2 g4 Ng1 Bb4 Nf3 Be7 Ng1 Bg5 hxg5 Qa5 Rh5 Qb6 Rh1 Qd8 c4 a5 b4 h5 e4 d5 g6 Kd7 c5 Kc6 e5 h4 e6 d3 g7 a3 Nc3 a2 Nce2 d4 Nc1 a4 Qf3+ Kb5 c6 d1B c7 a3 Nh3 Nc6 Qf4 Ra6 Qf6 Na5 Ng5 h3+ Kg1 g2 Kh2 g1R Qe7 Nf6 g8R Rh5 Rb1 a1Q Rg6 a2 Ne2 d2 Nf7 d3 Rb2 Bb7 Nh8 Ba8 Rb3 Nb7 c8N Qa5 Qg7 Ne8 Qd4 Qb2 Nc1 a1R Qf4 Bc2 Qd6 d1Q Ne2 d2 Rd3 Bb1 Nf4 Qdc2 Rg5+ Qc5 Nhg6 d1Q Nf8 Rg3 Rg6 Qcc7 Qd8 Rc6 Rd7+ Qd3 Re7 Re5 Rgg7 Rec5 Bg2 Qe4 Rd1 Rgc3 Qd6 Rc1 Kg3 h2 Kh4 h1N Bh3 g3 Rd5 g2 Kh5 Qc4 Qd7 Rc2 Kg6 g1R+ Kf7 Rg6 Rd4 Qcc3 Qd5 Qd3 Qh5 Qc4 Rd6 Qcd4 Qd1 R2c4 Nd5
1rQN1n2/2Rq1bK1/1kq1R1BP/q3B3/2R1rP2/r2P1n2/r2rn1nB/2q5 b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 axb4 Nc3 e6 Nd5 fxe4 Ne3 d5 Ng4 dxc4 g3 Bd6 f5 Bf4 gxf4 hxg4 Ke2 Kd7 Ke3 Kc6 a4 g5 h4 b5 d3 c3 f6 e5 f7 b3 f8B c2 h5 g3 h6 b4 a5 g4 a6 b2 a7 b1R Bb2 c1Q+ Qd2 g2 Bd4 b3 Bd6 g3 Bf8 b2 Rh5 Ne7 Nf3 g1N Bh3 g2 Bg7 Be6 Bf6 Nf5+ Kf2 Ne2 Nh4 g1N Bg2 Qd7 Bc3 Ne3 Ra2 Ra1 Bh3 b1R Qb2 Nf3 Bg4 Bf7 Bg5 Ng2 Qc2 Kb6 Bf5 c5 Bg6 c4 Nf5 Rb2 Ra4 Ra3 Ne7 Rc8 Be1 c3 Bf6 Rba2 Nc6 e3+ Kf1 e4 Re5 Rc7 Nd8 Rc5 Rc4 Rca5 Qa4 Rd2 Qc2 Rb5 Re8 Rb2 Be5 Rba2 Qa4 c2 Re6+ Qd6 Qe8 Nd7 Qf8 Rb8 a8R Qc6 Qg8 Nf8 Ra7 Qd1 Rae7 c1Q Rc7 Qa4 Qh8 Qa5 Qg8 Qd5 Qh8 Qd7 Qg8 Qc3 Bg3 Qa5 Bh2 Ned4 Rf6 e2+ Kf2 e1R+ Kg3 e3 Re6 e2 Kg4 Rh1 Kh5 e1Q Re7 Qc1 Re6 Re1 Qh8 Re4 Qg8 Nfh4 Kg5 Nhf3+ Kf6 Ne2 Kg7 Ng5 Qh8 Nf3 Nb7 Nh7 Qc8 Nf8 Nd8
N2N4/4PR2/Bb2qn1K/PpqN1P2/4r2B/q2n1r1b/1rrQ1rB1/4n1k1 b - - 0 1 legal: proof: e4 a5 b4 axb4 d4 e5 h4 g5 c4 gxh4 a4 f5 Ra2 d6 Re2 d5 cxd5 exd4 e5 Ke7 Re3 Ke8 Re4 fxe4 Kd2 Ke7 f4 h5 g4 b5 d6+ Ke6 d7 Kd5 g5 c5 e6 b3 g6 b2 g7 h3 a5 e3+ Kd3 c4+ Ke2 Ke4 Qe1 h2 Nf3 d3+ Kd1 h4 Qb4 d2 Ke2 d1R Ne5 h3 Qa4 Qf6 d8N Rh4 Nd7 Na6 Qa2 c3 Qa4+ Nb4 Ne5 c2 Qa1 Rd2+ Ke1 e2 Kf2 e1N+ Kg3 Ke3 Nc3 b1R Nd3 Rb2 Qb1 Bc5 e7 Qe6 Qa2 Bb6 Ne5 Nf6 g8B Nbd3 Bg2 Bd7 Bb7 Rc8 Rf1 h1R Ba6 h2 Nd5+ Ke2 Rf3 Rf1 Nc4 h1Q Bh7 Rf2 Be4 Rd1 Bd2 Kf1 Be3 c1Q Bc5 Ba7 Ncb6 Kg1 Na8 Bb6 Be3 Rcc2 Bd4 Ng8 Bf6 Qe3 Bg5 Qc5 Bf6 Rdd2 Bg5 Rde2 Bf6 Rh5 Bh4 Rf5 Kg4 Rf6+ Kh5 Qhh3 Kg5 Rf7 Kh5 Nf6+ Kh6 Re3 Bf5 Qg3 Bh3 Re4 Bg2 Qgh3 Rg3 Rf8 Rg7 Qhe3 Rh7 Qa3 Rf7 Qec5 Rg7 Qf7 Rh7 Bh3 Rg7 Qe6 Rf7 Rg8 f5 Rg3 Nb7 Rgf3 Nd8 Rb3 Qb2 Rbb4 Qc3 Rbb2 Qd2
4q1n1/2rPkr1N/rN2R3/1b2n3/RqN2Q1P/B4n1R/qbKb2pP/4r3 b - - 0 1 legal: proof: f4 a5 c4 d5 b4 axb4 g3 dxc4 Kf2 e5 Ke1 exf4 a3 h5 e3 c3 Bc4 h4 Ba2 b3 gxh4 bxa2 d4 b5 d5 g5 a4 c5 a5 f5 e4 c2 Kd2 b4 e5 f3 a6 f2 d6 f1R a7 f4 e6 b3 e7 Rh7 Bb2 c1B+ Kc3 f3 Nh3 c4 Qe2 g4 Qd3 g3 Ng5 f2 Qd2 g2 Qf4 Rf7 Nf3 Bh6 Rg1 Ba6 Qe5 Nd7 Qb5 Bhd2+ Kd4 c3 Kd3 c2 Qc4 Bb5 Na3 Ne5+ Kd4 Rd1 Re1 f1Q Ng5 Qf4+ Re4 Re1 Nh7 Qg4 Rb1 a1Q Qf1 Kd7 e8R Qa2 Re6 Qe8 Qf5 Kd8 d7 Qf4 Kd5 Qg4 Ra4 Qb4 Qf3 Be2 Qf4 Bb5 Rd6 Ke7 Rg6 Rb8 a8N Rb6 Rc6 Ra6 Nb6 Bc3 Rd6 B1d2 Rc6 c1R Rd6 Rc2 Re6+ Kd8 Bc1 Bd4 Bb2 Rc7 Nac4 B4c3 Ba3 Bd4 Rc6 Ke7 Rc1 b2 Rg6 b1N Rc3 Bc1 Rh3 Nd2 Rc6 Be3 Rd6 Ndf3 Ke4 Bb2 Rg6 Ng4 Kd3 Nge5+ Kc2 Bd2 Re6+
1Q2k1K1/1rR3Bn/N2nP1PB/1p1q3q/Rqbr2P1/4b2r/4R2n/2B3nr b - - 0 1 legal: proof: c4 a5 e4 f5 d4 g5 b4 axb4 h4 e6 e5 d6 Bd3 d5 Be4 fxe4 hxg5 Bh6 Nc3 dxc4 d5 Bg7 d6 Bf8 Nd5 exd5 Kd2 b5 Ke3 h5 Kd4 c5+ Ke3 b3 Kf4 c3 a4 d4 g4 e3 g6 d3 f3 b2 a5 b1Q a6 d2 a7 c2 Bb2 c1R Ne2 c4 Rf1 c3 Rh1 c2 Bc3 h4 Ra5 h3 Rh2 Na6 Qg1 d1R Ra4 Rb8 a8R Be6 Ng3 e2 Ra7 e1N Re2 h2 Rc7 h1Q Ne4 Bc4 Kf5 Rb7 f4 Nf3 e6 Nh2 Nc5 Qb4 Bg7 Nf6 Qd4 Rh3 d7+ Ke7 Ke5 Nh7 f5 Rd2 Qe3 Rd4 Qa3 Qa8 d8B+ Ke8 f6 Rb1 Be7 c1N Bd6 Qd8 Kf5 Qa8 Bf4 Bd6 Bd2 Bf4 Bh6 Be3 f7+ Kd8 f8B Ke8 Bfg7 Ra1 Re1 Ne2 Bc1 Ng1 Re2 Qd8 Rc6 Nc7 Na6 Qd2 Qc5 Qb4 Qa7 Qdd5+ Be5 Ng5 Kf6 Nh7+ Kg7 Rb1 Bf6 Qh5 Kg8 Q1d5 Rb6 Na8 Rc6 Nb6 Bfg7 Nc8 Rc5 Nd6 Rc7 Ngf3 Bb2 Rh1 Bc1 Ng1 Qb8+
B5R1/2n1PpPB/rq3q1N/b2B4/2b3n1/1qR4K/Pq1Rrb2/k2r1Q1b b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 g5 d4 c5 b4 cxd4 Na3 axb4 Nc4 h6 Bf4 gxf4 g5 h5 Ne3 Ra4 Ng4 hxg4 Qb1 Ra3 Qd1 Ra8 Kf2 Ke7 Kg2 Ke6 h4 Kd5 h5 Kc4 e4+ Kc3 h6 Kb2 c4 b5 h7 d5 g6 g3 g7 b3 e6 f3+ Kh3 b4 c5 d3 e5 d4 c6 f2 c7 d2 Kg4 d3 Be2 f1B Bf3 g2 Ne2 g1B Rh6 Nf6+ Kh4 Ra6 e7 Ng4 e6 Bb7 c8B Bf2+ Ng3 Ba8 Qe1 d1Q Bd5 d2 Qe3 Bc4 Qe2 Qf1 Qe3 d1R Qe4 Qb6 e8B Bd6 e7 Bc7 Qf4 Bb7 Bde6 Bh1 Bc6 Rhd8 h8R R8d2 Bg2 Re2 Rc1 Bd8 Rc2+ Ka1 Kh3 b2 Rc3 b1Q Rg8 b3 Nf5 b2 Bd5 Qb3 Rd6 Ba5 Bce6 Qc1 Nh6 b1Q Ba8 Qcb2 Rd2 Qg6 Bed5 Qgb6 Rf8 Nc6 Re8 Nd4 Rg8 Nb5 Be4 Nc7 Bh7 Bg3 Qf2 Bh4 Qg1 Qff6 Qf1 Bf2 Bgd5
1n2qq1r/1PpR1Pr1/Q1rN2R1/2n3Pq/3B2Bb/1bq5/2rk3n/1K1R3B b - - 0 1 legal: proof: h4 d5 d4 g5 c4 dxc4 a4 gxh4 e4 e5 Qb3 b5 axb5 f6 Qd1 exd4 e5 f5 Nd2 Nd7 Ne4 fxe4 Qd3 Nb8 Qc2 Na6 Qd1 Nb8 Kd2 Kf7 Kc2 Ke6 g4 Kd5 f4 h5 b4 a5 f5 e3 b6 Ke4 e6 d3+ Kb1 a4 e7 h3 e8B c3 b5 d2 b7 c2+ Ka2 h4 f6 e2 f7 Kd3 b6 a3 Ba4 h2 Bb2 c1N+ Kb1 h3 Qe1 d1Q Bb3 Nf6 Qh4 Be6 Be5 a2+ Kb2 Kd2 Rb1 e1Q Be2 Ra6 Bbc4 Be7 Bd4 Qf8 Qh5 Nb3 Bd5 Nc5 Qg6 a1R Rc1 R1a2+ Kb1 Qa4 Bd1 Qa3 Ne2 Rc2 Ng3 Qc3 Rg1 h1R Nf5 h2 Nd6 Rh7 B5f3 Bb3 Rg3 Rg1 Bh1 Rh8 Be2 Bd8 Bef3 Qee8 Bd1 Nc6 b8R Be7 Rc8 Nb8 b7 Rc6 Rd8 Rg2 Rd7 Rg1 Bg2 h1Q Bdf3 Qh5 Bh1 Ng8 Qe6 Bh4 Qc4 Nf6 Qa6 Re1 Rg1 Re6 g5 Ng4 Rgf1 Nh2 Bg4 Reh6 Rf6 R6h7 Rg6 Rg7 Rd1#
2N1BQrb/pR1R1qPK/q1B1n3/1P3kPb/6n1/3rrb2/r1q4R/b6B b - - 0 1 legal: proof: h4 f5 a4 g5 hxg5 e5 e4 b5 d4 exd4 e5 c5 Bd2 c4 Nc3 bxa4 Ne4 fxe4 Ke2 c3 Rh4 cxd2 Rh2 Bc5 Rh1 Bf8 g4 Kf7 c4 Ke6 b4 d5 f4 h5 c5 a3 b5 e3 Kd3 e2 g6 e1R c6 a2 g5 h4 c7 h3 Qe2 d1R+ Qd2 h2 Be2 Qe8 Rb1 a1B Nh3 Nh6 Bf3 Bb7 c8B+ Nd7 Nf2 Bg7 Ne4 Qf7 Nd6 Ng4 Be4 Bc6 Bb7 Rag8 Nc8 Nf8 Bg2 Kf5 e6 Rh6 e7 Bh8 e8B Ne6 g7 Re2 Bf3 Rh3 Rb3 Rde1 Qb4 Ra2 Qf8 Ree2 Rd1 h1Q Rb2 Qe1 Ba8 Qa5 Rc2 Re1 Rh2 Qa6 Rdd2 Rh4 Bg2 Rd1 Bh1 Rh3+ Ke2 Rha3 Bb7 d3+ Kf3 d4+ Kg3 Nc7 Kh4 Bf3 Bbc6 Re1 Rd1 Re3 Rdd2 Ne6 Rd1 Qf6 Kh5 d2 Bf7 Qe7 Bfe8+ Nf6+ Kh6 d3 Bb7 Qf7 Bbc6 Ng4+ Kh7 Rc3 Bcd7 Ke4 f5 Rca3 f6 Kf5 Bc6 Rb3 Rc1 d1Q Rcc2 Qb1 Rcd2 Qc2 Rd1 Qe7 f7 d2 Rf1 d1B Rff2 Re4 Rd2 Ree3 Rd7 Qf6 Qd6 Rbc3 f8R Rcd3 Rff7 Bde2 Rfe7 Qf7 Rb7 Ne5 Red7 Bh5 Re7 Ng4 Red7 Bf3 Qf8
3K1k2/4B1Rq/2P1Q1qB/7P/1b2Pr1b/4q3/1p1Rqr1r/bBqb1nNR b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 Na3 h5 Qd3 f5 Nc4 f4 Ne5 Nc6 Qd2 Nce7 Qd1 Nf5 gxf5 Nf6 Ng4 hxg4 Qd2 Ng8 Qd3 Ra4 Qd1 Ra8 Kf2 g5 c4 b5 h4 d5 a4 g3+ Ke1 g2 Kd2 d3 c5 b3 Kc3 f2 Kb4 g4 e3 b2 f6 b1Q+ Bb2 d4 a5 f3 a6 d2 a7 d3 Be2 f1Q Ra4 f2 Ra1 g3 Qa4 d1Q Bf3 d2 Ra2 Qfe1 Rh2 f1R Qb3 Qb6 Nh3 g1B Ba3 g2 Nf2 Qde2 Ng4 d1Q+ Rd2 Nh6 Be4 Qdc1 Bb7 Rf2 Rh3 Qh7 Ne5 Nf5 Be4 Ng3 Nf3 Bg4 Bb1 Nf1 e4 Bh2 Qa2 Be5 Rh1 g1B f7+ Ke7 Qb3 Qbg6 Ka5 b4 c6 Ba1 Kb6 Qe3+ Kc7 Q1e2 Qa2 Rb8 a8R Bh2+ Rd6 b3 Ng1 b2 Ra7 Bg3 Qb3 Rd8 h5 Bh4 Rd3+ Rd6 Bb4 Rh2 Bd2 Rf6 Rd6 Rff2 Rd7+ Kf6 Kd8 Bb4+ f8B Rg8 Qa2 Rg7 Rd5 Rf7 Be7+ Kg7 Rdd7 R7f4 Qe6 Q2d3 Rb7 Bd1 Rd6 Qee2 Be3 Qa3 Rd2 Qac3 Bf6+ Kf8 Rg7 Rg4 Bh6 Qce3 Bfg5 Rgf4 Be7+
1nK5/Pp1nP2P/BNB1rr1n/3b4/1N3nr1/2qQ2r1/1Nqr3B/Rqk5 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 a4 h5 Ra3 Bd6 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 Kd3 Ke7 Ke4 Kd6 Kf5 Kc5 e4 g5 c4 d5+ Ke5 d3 h4 g3 f5 g2 h5 d2 f6 d4 a5 d3 f7 g4 f8N g3 a6 b3 h6 Kb4 a7 b2 h7 Qf6+ Kd5 Be6+ Kd6 Qc3 Kc7 Bd5 e5 Nh6 c5 Rg8 c6 Rg4 Na3 b1Q Nc2+ Kb3 Ne2 g1N e6 g2 e7 Nh3 Ng6 g1N Nh4 Nf4 Ng6 Rg3 Bg2 f1R Kc8 f2 c7 Re1 Nf8 f1R Nd7 Nf3 Nb6 Ne5 Nb4+ Qbc2 Bb2 Ned7 Ba3 Rg1 Bf1 Rg4 Bb2 R1g3 Ba1 Ka3 Nc1 Re6 Qf3 d1Q Qe4 d2 Ncd3 Qc6 Be5 Q6c3 Nb2 Qdb1 Ba6 d1R Qd3 Rd2 Kd8 Nf6 c8B Kb3 Bd7 Ka3 Bc6 Nfd7 Nd1 Kb3 Kc8 Ka3 Nf2 Kb2 Nd1+ Kc1 Nb2+ Rg1 Bd4 Qa1 Qe2 Kb1 Rh4 R1g3 Qd3 Qa2 Kd8 Qa1 Bcb5 Nc6+ Kc7 Rb8 Bg1 Rf8 Rh1 Ncb8+ Bc6 Rff6 Kc8 Qa2 Nd1 Qab2 Bh2 Qbb3 Nf2+ Kb2 Ra1 Qb1 Nd1+ Kc1 Nb2 Qcc2 Qe2 Qbc3 Qd3
1n1bqB2/bP2Q2B/3r4/n4P2/pk2q3/pnnn3K/1P1B2Rb/N1r1R1R1 b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 g4 fxe4 g5 b6 g6 Ba6 Nd2 Bb5 axb5 hxg6 Nc4 g5 Na5 bxa5 Bd2 g4 Bf4 Rh6 Bc1 Rh8 h4 e5 f4 Ke7 Kf2 Kd6 Kg2 Kc5 c4 d5 b6 g5 f5 d3 h5 d2 h6 e3 h7 d4 b7 d3 Rh5 e4 Nf3 e2 Ne5 e1Q Rb1 e3 Rh1 a4 Rh3 a5 Rh2 e2 Qc2 d1N Nf3 a3 Rh1 a4 Qb3 d2 Qd3 g3 Ne5 g4 Nc6 Qe8 Ne7 Nf2 Qd7 d1N Qd2 Nd3 Rg1 Nc3 Rh1 Kb4 c5 Ra6 c6 Nc5 c7 Rd6 c8R Nb3 Rg1 Bg7 Rc7 Bf6 Qe3 Bh4 Bd2 Bg5 Nc8 Ne7 Nb6 Nec6 Qe7 Nca5 Nc4 Rg8 h8B Bf6 Qg7 Bd8 Qe7 Rg5 Ne3 Rh5 Ra1 Rh1 Bg7 Qb1 Nc4 Qd3 Bf8 Qb1 Ne5 Qe4+ Nf3 Qb1 Bg5 Nc4 Nd4 Nd1 Bgh6 Nca5 Rc2 Nc3 Bg5 Rh7 Rh1 e1N+ Kg1 g2 Bc4 Rh8 Rf2 Qe4 Bg8 Nd3 Bd2 Rh3 Rc1 Rf3 Kh2 g1B+ Kg2 g3 Kh3 Bh2 Bh7 Re3 Ra1 Re1 Rc1 g2 Rg1 Re2 Rcf1 Re1 Re2 Rc1 Nc2+ Kb5 Na1 Kb4 Rh1 g1B Rfe1 Bc5 Rg2 Ba7 Rhg1
n1n1b1B1/2r1q2Q/1P3R2/1rpB1N1R/q6b/1qnn1PP1/k2p2B1/3b1KR1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 g5 hxg5 f5 a3 fxe4 a4 bxa4 c4 d6 Be3 Qc7 d5 Qb6 Bd4 Qd8 Nd2 Qb6 Nb3 cxd4 c5 Qc7 c6 Qd8 Nc5 dxc5 b4 Kf7 d6 Ke6 c7 Kd5 g6 h5 b5 e5 g3 a5 b6 e3 d7 d3 g7 Kc4 Qc1+ Kb3 Rh4 d2+ Ke2 a3 Rh3 a2 Rh1 e4 Rh2 a4 Rg2 a3 Nf3 h4 Qe1 h3 Nh2 Na6 Nf3 h2 Ng1 h1B Nh3 Ne7 Rg1 Rh7 Rc1 a1Q Rc4 a2 g8B Qb2 Bd5 a1Q Nf4 Qa4 Bg8 Ka2 Bd5 Qbb3 Bh3 Bf3+ Kf1 Bd1 f3 e2+ Kg2 e3 Qf1 e1N+ Kh1 e2 Be4 Nc2 Kg2 Nd4 Ne6 Nb5 Nd4 Nc3 Nf5 e1N+ Kf2 Bb7 c8B Nc7 Bd5 Bc6 Rf4 Ra5 Bg2 Na8 Qd3 Rb5 Kf1 Qe8 Qe4 Nd3 d8R Bd7 Bcb7 Nc8 Bg8 Be7 Bbd5 Bh4 Qe7 Bc6 Rd6 Qf8 Rh6 Be8 Rh5 Rg7 Qe4 Rc7 Qe7 Qf6 Qh7 Qg7 Rg4 Qf7 Rg6 Qe7 Rf6
r2b1kbB/3q1R1P/5n1n/4qN2/r6P/q1bN1P2/bpKpB2Q/3N1rB1 b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 d5 a4 f5 c4 h5 Ra3 dxc4 e4 fxe4 Rd3 cxd3 gxh5 Ra6 Ba3 Ra5 Bc1 Ra8 Kd2 g5 h4 b5 h6 c5 d5 e5 f3 g4 h7 c4 a5 e3+ Ke1 e4 a6 g3 d6 b3 a7 b4 Rh3 g2 Bd2 b2 Nc3 b1B Qc1 e2 Na4 b3 Qc2 c3 Rh1 Ba2 Qb2 c2 Rh2 Qd7 Nc3 c1Q+ Nd1 Be7 Bc3 Kf8 Nh3 g1R Rg2 Nh6 Nf4 Bd8 Rg7 Qa1 Qc2 b2 Kd2 Bg8 Bd4 Qa3 Bb6 Rh1 Bg1 Ba6 Re7 Bac4 Rg7 Bb3 Kc3 e3 Rf7+ Ke8 Qd2 e1Q Be2 Qg3 Ne6 Qe5+ Nd4 Qg4 Qc2 Nd7 Qd2 Nf6 Qc2 Rb8 a8N Qd7 Nb6 Ra8 Na4 Ra6 Nc5 Ra4 Bh2 Rf1 Bg1 d2 Nd3 Ba2+ Qb3 Nfg4 Kc2 Nf6 Re7+ Kf8 Qb8 Qdb5 Rc7 Qd7 Nf5 Rf2 Bf1 e2 Rb7 e1B Be2 Rf1 Ra7 Qb7 d7 Bf2 Qc7 Bd4 Qd6+ Be7 d8B Qd7 Bb6 Bc3 Bbd4 Qe4 Qh2 Bd8 Rb7 Qe5 Rc7 Qdd5 Re7 Qd7 Rf7+ Ke8 Qg3 Be7 Nc5 Qb8 Qc7 Nd5 Rg7 Be6 Bge3 Rf8 Qa5 Bg8 Rf7 Qbb5 Bh8 Nf6 Qc7 Qb8 Qh2 Qbd6 Rg7 Qe5 Rg3 Kf7 Nd3 Rfa8 Rg7+ Kf8 Bg1 Bd8 Rf7+
2K2R2/q4PNP/1Qb2N2/3bNn1p/3pq2B/q3rbP1/1r1qknr1/1BB5 b - - 0 1 illegal: No proof kernel
4r1NN/QPn2b1K/R1p2p1B/2qPN3/1k3bPb/2n1nB1B/2r2b2/q4q2 b - - 0 1 legal: proof: f4 d5 b4 e5 h4 g5 a4 gxh4 c4 dxc4 Ra3 b5 axb5 exf4 e4 Na6 Rf3 Nb8 Re3 fxe3 Ke2 Kd7 Kf3 Kd6 Kf4 h5 g4 a5 d4 e2 d5 e1B b6 c6 b7 a4 b5 Kc5 e5 h3 b6 a3 e6 a2 Kf5 a1N Qd3 h4 Qe4 c3 Bg5 c2 Bf6 c1B Qe2 h2 Qa2 h3 Ne2 Bf2 Bg7 Kb4 Nf4 Na6 b8N Nc7 b7 Nc2 Bh6 Nf6 Kg5 Qd6 e7 Ne3 e8B Qc5 Nd7 Be7 Ne5 Be6 Nfg6 Ne4+ Kh5 Ra5 Nd2 Nc3 Ne4 Beh4 Nf6 Ra6 Rg1 h1Q Ng8 h2 Bh3 f6 Rg2 Rb6 Qa7 Qf1 Bd7 Bf7 Bf5 h1Q Be4 Ra6 Bf3 Ra2 Rg3 Rc2 Rg1 Qfc4 Rd1 Bd2 Ra1 Qcf1 Ra6 Bc1 Ne7 Re8 Ng8 Be6 Nh8 Qhg1 Kg6 Bf7+ Kg7 Bd2 Kh7 Qa1 Qb8 Qgf1 Nc4 Ned1 Ne5 Bf4 Qa8 Ne3 Qa7
2k3br/2q1r1Np/4rb1n/1rpP3Q/R1n3N1/NB1P2b1/1PKb2n1/R2R4 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 bxa4 h4 fxe4 d3 g5 Bf4 gxh4 g4 Nc6 Be5 Nb8 Bg3 hxg3 Kd2 Kd7 f4 c5 g5 e5 g6 a5 g7 e3+ Kc3 a3 f5 g2 f6 a4 f7 a2 Nh3 g1B Qc2 e2 Nd2 e1B Qd1 e4 Kc2 a3 Nb1 e3 Qc1 e2 Bg2 Ra7 Kb3 Bd4 Nc3 Nc6 Nd1 Qc7 Ng1 Na5+ Kc2 Bg3 Qb1 Nc4 Nh3 Bf6 Bf3 Nh6 g8R e1R Rg7 Re6 Nhf2 Bfd6 Rg8 Bdf4 Nc3 Bd2 Rg4 Rb7 Qc1 Rb5 f8N+ Kd8 Be2 Bd7 Rd1 Kc8 Qb1 Be8 Rd4 Bf7 Ng4 Re7 Ne6 Bg8 Ng7 Re6 Qc1 Re7 Rb1 a1R Bf3 a2 Rf4 Rb6 Nb5 Rb7 Na3 Rb5 Rh1 Re6 Qd1 Re7 Qe2 Re6 Rbf1 Re1 Qh2 Re7 Qh5 R1e6 Rd1 a1N+ Kb1 Nb3 Kc2 Nc1 Rhe1 Ne2 Re4 Nd6 Ra4 Nc4 Ra1 Nf4 Bd1 Ng2 Kb1 Nb6 Bb3 Nc4 Kc2 Bge5 Rh1 Bg3 Rhd1
8/n2kB3/r3p1QP/N1q5/qBRpPbK1/2P3B1/1nnq1b1r/q2N1n1N b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 a4 a5 Ra3 axb4 Re3 f4 g4 fxe3 f4 h5 f5 b6 Be2 Ba6 f6 Bc4 Bf3 Be6 Be2 Bf5 gxf5 Ra6 Bf3 Ra8 Bg4 hxg4 Ke2 g5 h4 d5 c3 e6 f7+ Kd7 f6 d3+ Kf1 d2 Ke2 b5 a5 g3 Kf3 g4+ Kf4 e2 a6 e1N h5 b3 a7 b4 Nf3 g2 Ng5 g1B Qe2 d1N Rh3 b2 Qb5+ Nc6 Rh4 g3 Na3 b1Q Nh3 g2 Nc4 b3 Nb2 Bd6+ Kg4 Qc2 f8B Bf2 f7 Ne7 Bf4 g1Q+ Bg3 Nf5 Be7 Bf4 f8B Qa5 Qf1 Qa4 Qg2 Qd2 Bb4 d4 Bfe7 Qf1 Qg1 Qc4 Qg2 Qc5 h6 Rhb8 Qg1 Nc2 Rh5 Rb6 Qg2 Ra6 Rg5 Rf8 a8N Na7 Rg8 Rb8 Rc8 Rbb6 Nc7 Rb8 Nc4 b2 Nd5 b1Q Na5 Qba1 Ne3 Nb2 Nd1 Nfe3+ Kh4 Qb6 Rc4 Nf1 Kg4 Qc5 Qg1 Rf8 Qg2 Rf5 Qg1 Rh5 Qg2 B2e3 Nhf2 Rh2 Nh1 Bf2 Qf3 B4e3 Qf6 Bf4 Qg6
1q2R3/1Pr2Rp1/1Nq2Q2/kqrN4/Rq1nqP2/1n4rn/PK3bpB/7N b - - 0 1 illegal: No possible last move, all moves rejected
1K1bb3/2nq1kPR/bBBn3r/2R1bQ1P/1BR5/4N2P/pq3p1b/2q4q b - - 0 1 illegal: Other
Rq3q1B/n3RPPq/p4K1n/b3n1r1/3B2pb/3p4/1P2bk1r/QR3N1B b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 f5 Kd2 fxe4 Ke1 g6 g4 Nh6 h4 Ng8 h5 gxh5 g5 Qb6 Qe2 Qc7 Qd1 Qd8 Nd2 Qc7 Nc4 Qb6 Ne3 Qd8 Ng4 hxg4 Kd2 Kf7 f4 Kg6 c4 Kf5 c5 e5 b6 d5 c6 h5 g6 e3+ Kd3 e4+ Ke2 d3+ Ke1 d4 b7 h4 c7 d2+ Ke2 h3 Rb1 h2 Bg2 Be7 Qa4 Nc6 b8B Nh6 Qb4 Ba6+ Qc4 Qf8 c8R Bh4 Kd1 e2+ Kc2 e1N+ Kb3 e3 Be5 e2 Qa4 Nd3 Nf3 Ke4 f5 Ke3 f6 e1B f7 Kf2 Qa1 Rg8 Bg7 Nde5 Bh8 Be2 Rb8 d3 Kc3 d1Q+ Nd2 a6 Rd8 Ra7 Ra8 Rc7 Rg1 Rg7 Bh1 Na7+ Kd4 Qb3 Nf1 Qbb8 Rg3 Rc2 Re3 Bc3+ Kd5 Bd2 Ke6 Ba5 Bd2 Rg8 Bc3 Rg7 Be4 h1Q Bd4 Rh7 g7 Rc6+ Kd5 Rg6 Bg2 Rg5 Ke6 Nf5 Bc6 Rhh5 Kf6 Nh6 Bd5 Qe4 Bc6 Qh7 Be4 Bg3 Bh1 Rh2 Bc3 Bh4 Re4 Nec6 Re7 Ne5 Bd4#
1k1N4/4N1qR/3n1N1b/1Q1Kn1n1/nPpP2rP/q2p2bR/4Bp2/1Rqr4 b - - 0 1 illegal: No extended proof kernel
k2N2r1/1Rp3BQ/K2p2Pn/2p1bn2/1b2P2q/1b1r4/2R1NNbP/R3r1q1 b - - 0 1 legal: proof: c4 b5 f4 g5 a4 h5 g4 d6 Bh3 gxf4 axb5 Bf5 g5 Bc8 Bg4 hxg4 c5 dxc5 d4 Qd6 d5 Qd8 d6 exd6 Kd2 Kd7 Kc3 a5 Kc4 f5 e4 g3 b4 a4 b6 Kc6 b7 f3 g6 a3 Bg5 g2 Bd2 f4 Bc1 a2 Bb2 f2 Bf6 f1R Bd4 f3 Na3 f2 Qf3 Bg7 Qe3 Rh3 Qh6 Rd3 Qh7 Nh6 Nc2 Qh4 Nh3 Rc1 Rf1 g1Q b5+ Kb6 Re1 Ka7 Re2 f1B Nf2 Nc6 b8N Bg2 b6+ Kb7 Kb5 Ne7 Rd2 Be6 Nc6 Rg8 Nd8+ Ka8 Ka6 Nef5 Bf6 Bf7 Nd4 Bb3 Ne2 Re1 Rc2 Bh8 Bb2 Bc3 b7+ Kb8 Rd1 Bb4 Bg7 a1B Rb1 Be5 Ra1 Ba3 Ka5 Ka7 b8R Bb4+ Kb5+ Ba3 Rb6 Ka8 Ka6 Bb4 Rb7
1b1q3N/P1p1k2B/n1nBr1Q1/B1bq3p/2Rr4/q3Pb2/p3P3/qR2K1R1 b - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 a4 d5 h5 dxc4 h6 e4 Ra3 e3 fxe3 gxh6 Ra2 h5 Na3 bxa3 Ra1 h4 d4 b5 g4 f5 a5 h5 d5 f4 g5 b4 d6 a2 a6 b3 g6 b2 d7+ Ke7 g7 b1Q Qd2 f3 Qd3 f2+ Kd1 h3 Nf3 h2 Qd4 c3 Bg2 f1Q+ Ne1 c2+ Kd2 Qb3 Qg4 Bb7 Rg1 h1Q Nf3 Rh6 Nh4 Re6 Qg6 Qa3 Rb1 Bf3 Bh3 Ra7 Bf5 Rb7 Bb2 Rb4 Bc3 Rd4+ Bd3 Qfg2 Ba5 c1B+ Ke1 Bb2 Bf5 Qg5 Bd3 Qd5 Bf5 Nh6 g8R Nf7 Be4 Ne5 Bf5 Qc8 Bc2 Nec6 d8B+ Kd6 Bg5 Qd8 Bf4+ Kd7 Be4 Bc5 Bd6 Ba7 Rf8 Bc1 Rf4 Bd2+ Kf1 Bb4 Bf5 Bbc5 Ke1 Nb4 Bc2 N8c6 Bd3 Bb8 a7 Na6 Bf5 Rd3 Rc4 Rd2 Qg2 Rd4 Ng6 Ke8 Nh8 Kd7 Bf4 Ke7 Bh7 Qh3 Qg6 Qhf5 Rbc1 Qb1 Bh2 Qbb2 Rb1 Qa1 Bd6+
1n4K1/1r1bpNb1/r1b5/1N3RR1/1P1bP2q/QPN2r2/3pBp2/k1q1b1R1 b - - 0 1 legal: proof: d4 h5 g4 hxg4 f4 g5 b3 gxf4 d5 b6 Bd2 c6 Ba5 cxd5 Bh3 bxa5 Bf1 Na6 a3 Nb4 axb4 d4 Ra4 d3 Ra3 Rh5 Ra1 Rh8 Kd2 d5 Kc3 Kd7 Kd4 Ke6 c4 f5 h4 d2 h5 a4 e3 a5 h6 g3 c5 a3 h7 a2 c6 f3 c7 a4 Qe2 d1B Qg2 f2 Rh3 a3 Be2 f1R Qf2 f4 Bc4 f3 Bd3 g2 Rg3 Bg7+ Kc5 Ke5 Qb2+ d4 Rh3 Bd7 c8R Nf6 Qf2 Ra6 Bf5 d3 Nc3 d2 Nge2 g1B Rc1 a1B Rc6 a2 Nb5 Bd4+ Kc4 a1Q Bd3 Qe8 Rg3 Qh5 Nec3 Qh4 Be2 Rb8 h8N Rb7 Na2 Qb1 Qg2 Bf2 Rg5+ Ke4 Qg1 Be1 Nf7 Bc2 Rd1 Qc1 Rcc5 Bc6 Rcf5 Nd7 Qg3 Nb8 Qc7 Rh1 Qa5 Rh3 Rg1 Rg3 Qa3 f2 Rg5 Qb2 Ra1 Rf3 Rc1 Bb1 Rc2 Qc1 Rc3 Bc2 Rd3 Bc3 Rdd5 Bd3+ Kc5 Bc4 Rdf5 Be6 Bd1 Kd3 e4 Bed7 Be2+ Kc2 Kc4 Be8 Kc5 Bcd7 Kd5 Bc6+ Ke6 Kb1 Nfd6 Bed7+ Kf7 Bgd4 Kg8 Ka1 Nf7 Bb2 Na7 Bg7 Nb5 Bbd4 Nac3+
2B1k3/KpqnB1P1/B2n1nrP/b2b2Np/1q4b1/2NRp1p1/2Q4P/6Nq b - - 0 1 illegal: Other
2NbB2b/p2pP1BP/1p3Rnn/6Nk/1nrp4/1n2Q3/1q1NB1P1/n2b1K2 b - - 0 1 illegal: No proof kernel
1B4K1/1P1R1r2/pN1p3q/3R4/1P2PNnp/1Rq1pr2/4nnn1/2Q1qNkb b - - 0 1 illegal: No extended proof kernel
r3q2R/1NN2kp1/4Pb2/1n1P1N1r/pQ1RBrbp/n4pR1/1pP5/n6K b - - 0 1 illegal: No possible last move, all moves rejected
rB2n3/8/1Q2Kp2/3p1R2/k1PP2p1/nrp1RP2/3Rp1Nb/1NqnNq1n b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 Bh3 d5 Qb3 Be6 Bg2 d4 Qc3 Bd5 exd5 dxc3 d6 c6 Bd5 cxd5 Ke2 Kd7 Kd3 Kc6 Kd4 b5 Ke5 g5 a4 b3 h4 b4 d4 g3 d7 b2 h5 g4 a5 b3 f3 g2 a6 Kb6 h6 Nc6+ Kf5 e5 a7 e4 h7 e3 Rh4 e2 Nd2 b1N Rh1 b2 Nh3 g1N Nf2 Na3 Rh4 Ka5 Rh6 b1Q+ Nd3 Ka4 Rh5 Nb4 Ra2 Nc2 Ne1 Nf6 Rg5 Qdb8 d8Q Bd6 Qb6 Nh3 Rb2 Re8 h8N Nf2 Ng6 Nh1 Nh4 Bh2 Nhg2 Rd8 Rh5 Ne8 Rg5 f6 Ke6 Qb7 Rf5 Rdb8 Ra2 Qb2 Nb1 Ne3 Bd2 Nd1 Bf4 Qc1 Rd2 Qh7 Bd6 Rb7 Bb8 Qh3 Bc7 Rab8 a8R+ Ra7 Be5 Rb7 Rc8 Ra8 Rc7 Rbb8 Re7 Rb7 Qc7 Rb3 Qb6 Qg3 Bb8 Qf2 Kd7 Qg1 Re3 Qf1 Ke6
2kr1Rr1/2b1P2n/rq2q3/R2Np1bR/1Q2qB2/1KNnP1rn/3PN3/5br1 b - - 0 1 illegal: Other
3r4/b1nk1rb1/b1qr2R1/PNnpn1KN/1n2q3/1nQ4P/2qPBN2/3R2R1 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 g5 e5 g6 exf4 Ba3 b3 Bg2 b2 Bb4 cxb4 Bf1 hxg6 Qc1 g5 Qd1 g4 Kf2 b5 e4 f5 c4 g5 a4 d5 h3 b3 c5 b4 c6 f3 Ke3 f2 a5 f4+ Kd3 f3 Ke3 g3 c7 g4 Kf4 g2 e5 g3 e6 Qf6+ Kg4 Nh6+ Kh5 Nf7+ Kg4 Ra6 Ra2 Nd7 e7 Rd6 Nc3 b1N Bc4 f1N Na4 f2 Ba6 b2 Ne2 g1N Nc1 g2 Ra1 b3 Qf3 Ne2 Ra2 g1B Qf5 Ne3+ Kf3 Nc5 Bb7 Nd4+ Kf4 f1R+ Kg3 Bg7 Nd3 Nec2 Kg4 Nc3 Ra1 b1Q Nf2 b2 Ba6 Nb4 Be2 Ncb5 Nc3 Qc2 Rd1 Ba6 Qf3 b1Q c8R+ Kd7 e8N Nc7 Nb5 Ndb3 Qc3 Qfg6+ Kf4 Ne5 Ra8 Qge4+ Kg5 Qbc1 Rb8 Rg8 Rb6 Rf8 Ng4 R1f7 Nef6+ Kc8 Rc6 Rfd8 Nh5 Kd7 Nf2 Na4 Ng4 Ba7 Nf2 Nac5 Rhg1 Qa3 Rb6 Qa4 Na3 Qc6 Nb5 Re8 Rb8 Rh8 Re8 Rg8 Re6 Rd8 Rg6
b1r1k3/1P2b1Rr/1N2rB1b/2r1p1r1/3qPBnn/1N1PN2B/3bb3/2Qn3K b - - 0 1 legal: proof: b4 d5 c4 dxc4 a4 h5 g4 b5 f4 bxa4 f5 g6 g5 gxf5 Ra3 f4 Rg3 Nh6 Rg2 Ng8 Rg4 hxg4 Kf2 a5 Kg2 f5 e4 c5 h4 e5 h5 c3 b5 g3 h6 c4 b6 a3 d3 f3+ Kh3 a2 h7 a1B g6 g2 Kh2 c2 g7 f2 Bh6 c1B Bd2 a4 Qf3 f4 Nh3 g1R Qg2 f3 Bh6 a3 Nf4 c3 Ng6 c2 Nd2 a2 Nb1 Bc3 Qg5 a1R Qd2 Nc6 Qd1 Nf6 g8N Ne7 Qe1 R1a6 Bd2 Rg5 Qe3 Ng4+ Kh3 Qd4 Kg3 Bb7 Nf4 Ng6 Rg1 Nh4 Nd5 Rc8 Bh3 f1B Nh6 f2 Nf5 Ba8 b7 Be2 Nb6 Be7 Qf4 Ba5 Be3 Bab4 Nd2 Ba5 Nb3 Bad2 Qf3 Rc5 Qh1 Rc8 Bf4 Rc5 Nc8 Re6 Nb6 Rc8 Ne3 Rc5 Bg2 f1N+ Kh3 Rhg8 h8B R8g7 Qh2 Rh7 Qh1 Rc8 Bf6 Rc5 Ned5 Nfe3 Kg3 Rc3 Bh3 Nd1 Ne3 Rc8 Rg2 Bb2 Rg1 c1R Rg2 R1c5 Qe1 Nh6+ Kh2 Ng4+ Kh1 Ba3 Rg1 Bf8 Rg3 Bh6 Qg1 Rb5 Qe1 Be7 Rg1 Rbc5 Qf1 Nc3 Qc1 Nd1 Qa1 Rh5 Na4 Nh2 Rg7 Ng4 Qc1 Rg5 Nb6
r1BQ2n1/2r2p1K/1r2PN1P/4rR1R/kB2qP2/B6b/nbq1bnrR/2b5 b - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 d5 h5 Nd2 hxg4 Ndf3 e5 Nd4 exd4 Kd2 Kd7 h4 g5 e4 b5 a4 c5 f4 g3 d6 Kc6 e5 g2 d7 b3 h5 b2 a5 b1Q h6 b4 a6 Kb5 a7 d3 Ke3 d2 Bb2 b3 Ne2 g1N Rh5 c3 Qe1 d1B Rh1 c4 Rh5 g4 Qd2 c2 Ke4 c1B+ Qc2 c3 Kf5 g3 Qe4 c2 Qd4 g2 Qc3 Na6 Ra2 Ba3 Qd4 Qe7 Qb6+ Ka4 Qd4+ Nb4 Ng3 Nh3 Ne4 g1R Nf6 Rg2 Ba6 Nf2 Qb6 Qe8 Qd8 Be2 Bc3 b2 Be1 Rb8 a8R Rb5 Rb8 Rd5 Rb5 Rc5 Ra1 Na2 Bb4 Be3 Bb7 Qc1 Rh2 b1R Ba6 Rb3 Rb1 Qb2 Rbh1 c1R Rh5 Rc7 R1h2 Re1 Rc5 Bc1 Rd5 Bb7 e6 Qc2+ Ke5 Ba8 Bc8 Bab2+ Kd6 Bc6 Rdf5 Bcf3 Ba3 Bg4 Kd5 Bh3 Kd6 Rcc3 Ke5 Qe7 Qc7 Qf8 d8B Qb4 Be7 Qc4 Beb4 Q4e4+ Kd6 Rc4 Qd8 Rc5 Kd7 Rc6 Ke8 Rc7 Ba5 Rb6 Kf8 Rd1 Bc3 Rd5 Bcb4 Re5 Ng4 Ne7+ Kg7 Re8 Kh7 Ng8 Nf6 Rf8 Ba6 Re8 Qd3 Reb8 Bc8 Ra8 Qd8
5bK1/1nrb1r2/n1qP1R2/1Q2pR2/4P1N1/1N1n1Bq1/b2nPbRN/1kr4q b - - 0 1 illegal: Other
n1Rnr2b/Bq4pK/b1q2k1R/2Pb1P2/1nN1r2Q/5RPN/1rb3qq/4N3 b - - 0 1 illegal: Other
8/1PpRrP2/b4kN1/1QPNn1bn/1K3b2/5n2/1BBrbrbN/n1b1q2B b - - 0 1 legal: proof: h4 f5 b4 d5 a4 b5 e4 bxa4 h5 f4 h6 dxe4 Ra3 gxh6 Re3 fxe3 Rh2 h5 Rh1 h4 g4 Kf7 c4 a5 f4 h5 d4 e5 d5 e2 Kd2 e1B+ Kc2 h3 g5 a3 Kb3 e3 d6 a2 g6+ Kf6 b5 a1B b6 h4 d7 a4+ Kc2 a3 Kb3 a2 c5 e2 f5 e4 g7 e3 Bg2 h2 Kc4 h3 Bf1 Be7 Bd2 Nc6 Qc1 Qe8 d8N Be5 Kb5 a1N Qc3 Ra2 Qc4 Bf4 Bc1 Ne5+ Nc6 Bd2 Qb4 e1R Bb2 e2 Nf3 Bc1 Qa5 Ba6+ Kb4 Rd1 b7 e1N Bd3 Rh7 Rg1 h1B Qb5 h2 Bc2 Rd2 Nc3 Bg2 Rh1 Bd8 Ne7 Rf2 Rg1 h1B Nh2 N1f3 Ng6 Bf1 Rg4 Be2 Rh4 Bg2 Nd5+ Kf7 Rh6 Nf6 g8B+ Kg7 Be6 Nh5 Bd7 Kf7 Bc6 Bdg5 f6 Rg7 Rh8 Ke6 Rf8 Rd7 f7 Re7 Ne3 Kf6 Rh8 Qd7 Rd8 Qd1 Rd7 Ra4+ Kc3 Rd4 B6e4 Rd2 Kb4 Qe1 Bc6 Bh3 Bd5 Nd4 Bg2 Ndf3 Bh1 Bg2 Nd5+
q6q/p1Qq1nNN/8/2q1B3/P3pb1r/1Pq1Pbr1/n2NB2k/qB1KR2q b - - 1 2 legal: proof: c4 g5 a4 b5 f4 bxc4 g4 gxf4 g5 h5 Ra3 Bb7 Rg3 Bc8 d3 cxd3 Rg4 hxg4 h4 f5 b3 Kf7 h5 Ke6 g6 Ke5 g7 c5 h6 d5 h7 c4 Ba3 d2+ Kf2 c3 Qc1 d1Q Rh2 c2 Rh3 g3+ Kf3 d4 Nc3 g2 Rh5 d3 Rh3 d2 Qb1 c1Q Rh5 Na6 Qa1 Bb7+ Nd5+ Qc3+ Kf2 f3 Rh2 f4 Nb4 Nh6 g8B Nf7 Rh1 Bh6 Na2 Nb4 Qb2 Qa1 Qc2 d1Q Nc1 Q1d7 Qd3 Na2 Qd2 e6 Ke1 f2+ Kd1 f3 Qd3 Kf4 Qd6+ e5 Bb2 Kg3 e3 Bf4 Be2 Qda5 Bd3 Qac5 Bb1 Be4 Nd3 f1Q+ Ne1 f2 Nh3 g1Q Ng5 Qa6 Ne6 f1Q Ng7 Qgg2 Rg1 Bd5 Qc7 Qh6 Rh1 Qe4 Rg1+ Qfg2 Nf3 Re8 Re1 Qgh1 Nd2 Kh2 Qc6 Re6 Qb7 Rg6 Qc7 Nd8 Bf7 Rg3 Bh5 Nf7 Be2 Qeg2 Nh5 Bf3 Ng7 Rb8 h8N Rb4 Ng6 Qh8 Ba3 Bh5 Nf8 Qa8 Nh7 Bf3 Nf5 e4 Bb2 Rb6 Ng7 Rh6 Qe5 Rh4 Qc7 Q3b4 Bf6 Qbc3 Be5
1r5b/qbbK4/3b3Q/kp1N1n1N/qN1Pb3/1q1Rb2B/pPPn1BrB/8 b - - 0 1 illegal: No proof kernel
r1NRR1nq/b4p1P/bn1Rn1qB/1n2N3/4kn2/1p1r1Pbn/4P2Q/N1K5 b - - 0 1 legal: proof: g4 c5 d4 a5 b4 axb4 d5 h5 d6 hxg4 Be3 c4 Bh3 g3 Bc1 exd6 Bg4 d5 Bf5 d4 Bd3 cxd3 Kd2 Ke7 h4 Kd6 c4 Ke5 a4 d5 h5 g5 h6 b5 h7 g2 a5 b3 a6 g4 c5 g3 c6 b4 c7 b2 a7 b3 Qf1 Nc6 Rh6 Ba6 c8N Ke4 Ra2 Bc5 Nf3 g1N Ra3 g2 Ne7 Nh3 Nh2 g1B Nf3 Bh2 Qe1 Bg3 Qh1 Qe8 Qh2 Nd8 Nc8 Ne6 Ke1 d2+ Kf1 d1N Ke1 d3 Kd2 d4 Ne5 Ne3 Qg1 Nc4+ Kd1 Nb6 Ke1 d2+ Kf1 d1N Ke1 d3 Kd2 Nc3 Rg6 Ncd5 Qh2 Ndf4 Ra5 Bd4 Na3 b1Q Rd5 Qd8 Nc2 Bc5 Kc3 d2 Na1 d1N+ Kd2 Nc3 Rh6 Qf6 Rd8 Nb5 Kd1 Qd3+ Bd2 Qd4 Kc1 Qg6 Re8 Rb8 a8R Rb7 Ne7 Rd7 Rad8 Rd6 Nd7 Qdf6 Nc8 Rd3 Ne5 Na8 Rh5 Ba7 Rf5 Qfg7 Rf6 Nb6 Be3 Ne7 Bd2 Rf8 Be3 Ng8 Bd2 Qh8 Be3 Ng7 Rfd6 Nge6 Bd2 Nh5 Bg5 N5f4 Bh6 Qhf6 Re7 Bh4 R8d7 Na4 Nb6 Ra8 Nc8 Nb6 Rd8 Bg3 Ree8 Qh8 f3+
n2q1B2/1BR2qp1/QP1N2n1/1bb3qb/b1R5/RrB1P2p/b1r1k1PK/2q5 b - - 0 1 illegal: No proof kernel
2N2R1R/1kN2nnq/2p2Pn1/qrPP3q/nbQq4/Bpr3RN/6bK/2r5 b - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nf3 fxg4 Qe2 h3 Bg2 hxg2 Qd1 axb6 Ng1 b5 Qf3 b4 Qe2 Nc6 Qd1 Nb8 h4 Kd7 c4 Kc6 d4 e5 f4 b5 Kf2 g5 Kg3 e3 a4 e4 h5 b3 f5 e2 h6 e1R d5+ Kb7 f6 b2 a5 e3 h7 b4 Bd2 e2 Bf4 c6 Ra2 b3 Rh6 Na6 Qd3 Qe7 Na3 b1N Qd1 Rb8 Qc1 Nc3 Bd6 Na4 Rh2 N6c5 Rh3 Ne6 Bc7 Nh6 Qd2 Ng7 Qd3 Rc1 Qg6 e1Q+ Kh2 Nf7 Ne2 g1N Rh6 g3+ Kg2 g4 Bd6 Nf3 Qc2 N3e5 Nf4 Ng6 Nh3 Q7e5 Qe4 Qh5 Nb5 Be7 Ba3 Bb4 c5 Bf5 Qf3 Be4 Na7 Rc3 Rc2 Qd2+ Kg1 g2 Qf4 Rhe8 h8R Bf3 Rg8 Re1+ Kh2 Rc1 Rhh8 Qd3 Kg3 g1Q+ Rg2 Qgd4 Rf8 Qc2 Rg1 Bg2+ Kh2 Qcf5 Nc8 Qh7 Re1 Qfh5 Re3 Qd2 Qf1 g3+ Kg1 Ka8 a6 Rb5 a7 Kb7 a8N Be4 Rf3 g2 Kh2 Qa2 Nc7 Qd2 Kg3 g1Q+ Qg2 Qge1+ Kh2 Qd4 Rg3 Bf3 Qg1 Bg2 Qh1 Qe7 Qf1 Qd8 Ne7 Qa8 Qc4 Qa5 Nc8
3BnRR1/4KPN1/2Q4R/3b1r2/1Pp2br1/Nbqb1p1r/2P3kN/qqnr4 b - - 0 1 illegal: No proof kernel
5rnB/1N4Q1/nPp1p1k1/b1q1rR2/bP2Nb2/KBPb2bB/2b5/n3N2n b - - 0 1 illegal: Other
N1q2n1n/1r1n1bk1/6Qp/p1rn2N1/KPnn1rB1/4b1N1/PR1P2rB/2B5 b - - 0 1 legal: proof: e4 b5 c4 bxc4 b4 g5 h4 gxh4 e5 d5 e6 d4 Na3 fxe6 Rb1 e5 Rb3 e4 Re3 dxe3 g4 Kf7 f4 c5 g5 e5 f5 a5 g6+ Kg7 Qf3 h3 Kd1 h2 Kc2 c3 Kb3 e2 Ka4 e1N Qg4 h6 Nf3 c2 Bg2 c4 Qh5 e3 Bb2 c1R Nc2 e2 Ba1 c3 Ng1 e4 Bf3 e3 Qh4 Bc5 Bh5 Be6 Nh3 Nd3 Nd4 e1N Bd1 e2 Qg5 c2 Bb2 Nd7 Qe7+ Bf7 Kb5 Nf3 Qe5+ Ngf6 Qd6 e1N Qe7 Nh7 Be2 Nd3e5 Qg5 N1d3 Bd1 Nh4 Ne2 Qc8 Ka4 Be3 Ng3 Rb8 Bg4 Nhf8 Rf1 h1R f6+ Kg8 g7 Rb7 Ba3 Nc4 Qg6 Rh2 Ng5 Rg2 Rh1 Rf1 Bc1 Rf5 Rg1 Rc5 Rf1 Nf4 Rf3 Bf2 Rb3 Nd5 Rb2 Rh7 Ne6 Bg1 Nc7 Be3 Na8 Rh8 Qh5 Kh7 g8N Nhg6 Qg5 Be6 f7 Kg7 Nf6 Rg8 Qf5 Nh8 Nh7 Rf2 Rb1 Rf3 Ng5 Rf4 Ba3 c1N Rb2 Nb3 Qd3 Nfg6 Qc2 Nd4 f8B+ Kf6 Bd6 Kg7 Rb1 Bf7 Bc1 Ngf8 Rb2 Rf5 Ne2 Rf2 Bh2 Rf4 Ng3 Nf5 N3e4 N5f6 Be2 Nd5 Nh3 Kh7 Bd1 Rgg4 Nhg5+ Kg7 Qb1 Rg2 Bg4 Nd4 Ng3 Re4 Qd3 Rf4 Qg6+
1R4Qk/b1bpb2n/4NB1b/2N2R1b/1PPP4/1bbR2pK/4r1n1/1q2b1rN b - - 0 1 illegal: No possible last move
B2nb3/4r1R1/1p3n1P/3pbRr1/rB1RPBr1/k1pPK3/4n1qr/1q1N3Q b - - 0 1 legal: proof: f4 h5 g4 hxg4 b4 e5 c4 exf4 b5 Bd6 c5 Bf8 Nc3 b6 Nd5 bxc5 b6 c4 b7 Qf6 Nb6 axb6 Bg2 Qg5 Bf1 Qd8 Kf2 Ke7 a4 Kd6 h4 Kc5 e4 Kb4 h5 d5 d3 g5 a5 c5 a6 f5 a7 c3 Qe1 g3+ Kf3 c4 Ra5 g2 Be2 g4+ Kf2 g3+ Kf3 Bd6 Rh3 Be5 Bf1 Bd7 Ke2 f3+ Ke3 f2 Rh1 f4+ Ke2 f3+ Ke3 Be8 Be2 f1R Qd2 f2 Bg4 Nc6 b8B Nf6 Nh3 g1R Bc8 g2 Qd1 c2 Bb7 c3 h6 Rh7 Ba3+ Kb3 Bf8 Re7 Ra4 Qd7 Qf3 c1N Rd4 Ka3 Qh5 Qg4 Qh4 Bh2 Bf4 Ne2 Qh5 Rb1 Qh4 f1R Nf2 Rb2 Nd1 Nd8 Qe1 Bg3 Rh5 Ra2 Rf5 Rf2 Bg5 Be5 Bf4 Rb2 Qf1 Rb4 Bc6 Ra4 Bb7 Rb8 a8R Rc8 Ra7 Rc7 Rb4 Rg7 Bc5 Rg5 Ba8 Re7 Rc7 Rh1 Ra7 Rh4 Qh1 g1Q Bd6 Q4g2 Rd4+ Ka2 Ba3 Rhg4 Bb4 Kb3 Ba5 Ka3 Nb2 Qb1 Nd1 Qf1 Rd7 Rh2 Rb7 Qg2 Rd7 Re6 Rg7 Re7 Bb4+
K1NR2b1/1P2qk2/1p1R1p2/n3pnQ1/1PNnNrq1/n3bnP1/2Br4/1Rq5 b - - 0 1 illegal: Other
3Q2b1/B4N1r/5pN1/R1rqrPR1/n2b1pq1/1bpk1P2/1Pr4q/2NKR2n b - - 0 2 illegal: Other
1r1Bq1N1/r1Bpq1NN/3Pr1np/kb1pQ3/qbPb2P1/1b3B2/3R4/2K1n3 b - - 0 1 illegal: No possible last move
3NqrBn/Nbq3r1/2bb1Q2/4B1np/PP3b2/1n1B2Nr/KpR1p2P/4k3 b - - 0 1 legal: proof: b4 b5 e4 d5 c4 dxe4 f4 bxc4 a3 g5 Ra2 gxf4 Rb2 a5 Rb3 a4 Nh3 axb3 a4 Ra6 Ng1 Ra8 g4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 c5 Kb2 e5 g5 f5 g6 f3 g7 f2 Qg4 e3 Qf3+ e4 Bh3 f1B Bd2 f4 Ka3 c3 Qg2 Kc4 d5 Kd3 d6 b2 d7 e2 Bc1 e1N Nd2 f3 Nb1 c4 Qg3 c2 Bh6 c1Q Ka2 c3 Nd2 c2 Qg5 f2 Qa5 e3 Qc7 e2 Qb7 Bg2 Nb1 f1R Nd2 Qe8 d8N Nf3 Nb1 Na6 Bg5 Nc5 Bh6 Ng5 Na3 Kd2 Nc6 Ne7 g8B Ra7 Qa6 Bb7 Nb5 Ng6 Bg7 Ke1 Bf5 Nb3 Nd8 Bd6 Be5 Bgc6 Bd3 Rf8 Qb6 Qf4 Qa6 c1B Nh3+ Qf1 Rg1 Bf4 Nf2 h6 Rg4 Qh3 Rg3 Qc8 Nh1 Qc7 Rh3 Rh7 Ng3 Nh8 Qb6 Rg7 Rh5 Ra5 Na7 Rc5 Rh3 h5 Rh4 Rc3 Qa6 Be3 Rc4 Bf4 Rc5 Rc4 Qb6 Re4 Rc2 Re3 Nf5 Rh3 Ng3 Be3 Qd4 Bc1 Qf4 Bd2 Qf5 Bf4 Qf6
K5R1/2qpqr2/2P1BR2/N1B1p2p/1PBn4/nb5q/3PQ1r1/rrkR1nb1 b - - 0 1 illegal: No possible last move
Nr2RB1b/r2Pr2p/1BPn1n2/8/r3n1QP/5p2/1kBRp1n1/1bRq2nK b - - 0 1 legal: proof: e4 b5 b4 c5 f4 g5 a4 bxa4 b5 gxf4 Nc3 d5 Na2 dxe4 Nb4 cxb4 Kf2 Kd7 h4 Kd6 g4 Kd5 Kg2 Kd4 c4 f5 g5 e5 g6 a5 g7 b3 d3 Kc3 d4 a3 b6 e3 d5 e2 c5 e1N+ Kh2 e4 c6 f3 d6 a4 b7 f4 Bc4 a2 Qd5 e3 Bd3 f2 Bb5 a3 Bc4 b2 Nh3 b1N Ng5 f1N+ Kg1 e2 Qe6 Ng2 Bd3 Nfe3 Bf5 Nf6 g8R Ne4 Bg6 Nd7 b8B Nc4 Be8 Bg7 Bh5 Nbd2 Be8 Ra4 Rh3+ Nf3+ Kh1 Ndf6 Bd2+ Kb2 Ba5 Ng1 Rc1 a1R Bg6 a2 Rd3 f3 Qg4 Bf5 Re8 Rf8 Bac7 Bh8 Ne6 Rb1 Rd5 a1R Bb6 Rf7 Nc7 Re7 Na8 Raa7 Rd3 R1a4 B8c7 Ka2 Bc5 Rb8 B7b6 Kb2 Rd5 Nc3 Rd4 Bb1 Bc2 Nce4 Rd3 Qc7 d7 Qd6 Rd4 Qd5 Rd2 Ncd6 Be3 Qb3 Bh6 Qd5 Bf8 Qb3 Rd5 Qd3 Rd4 Qd1 Rd2
2k3n1/1nb2p2/2b2N1p/p2B4/PBqBN1rr/rnnR1Pr1/1K1P4/r2Q2N1 b - - 0 2 legal: proof: b4 g5 h4 gxh4 e4 d5 c4 dxe4 a4 b5 Ra3 bxc4 Rb3 cxb3 g4 Kd7 b5 a5 f3 e5 b6 c5 b7 c4 g5 h6 g6 h3 g7 b2 Qe2 c3 Kd1 h2 Kc2 e3 Na3 b1N Nc4 e4 Nb2 Qh4 Qd3+ Bd6 Nc4 e2 Qd4 e1R Nh3 e3 Be2 Nc6 b8B Bb7 Qf6 Nd8 Qd4 Bc6 Bf1 e2 Qd3 Nb7 Bc7 Kc8 Bb6 Bc7 Ba3 Rd1 Ba7 e1R Bd4 Re3 Bb4 Qg4 Kb3 c2 Ng1 c1N+ Kb2 Nc3 Qb1 Nb3 Bd3 Qf4 Be4 Rd3 Qc2 Ra1 Qd1 Qh4 Bd5 Qg4 Nh3 Qf4 Re1 h1R Ng1 Rh4 Re3 Qe4 Na3 Qg4 Nb1 Rb8 Ba7 Qc4 Bb6 Rdd4 Rd3 Rdg4 B6c5 Ne7 g8N Rg3 Nf6 Rhg8 Qe2 R8g4 Qd1 Ng8 Bf2 N7c5 Be3 Rb5 Bd4 Nb7 Be4 Re5 Bd5 Re1 Nh3 Ra3 Ng1 Nb5 Nc3 Rf1 Nce4 Nc3 Qe2 Rfa1 Qd1
5n2/R4R2/b1B3P1/2QB4/pnqb2pn/Prb2krp/R1PBN2K/r3rb2 b - - 0 1 illegal: No possible last move
2br1Nq1/1qp1q1n1/4P1P1/1bPR1NN1/4B1np/1p1q4/bb1Q4/k2rR1RK b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 d4 gxh4 e5 f6 d5 e6 Bf4 exd5 e6 d4 Be5 fxe5 a4 Ke7 f4 Kf6 Kf2 d5 g4 b5 Kg2 h5 c4 h3+ Kh2 e4 a5 e3 f5 Ke5 c5 d3 g5 Kd4 a6 d2 a7 h4 f6 b3 f7 b2 Bc4 e2 Ra3 e1Q Qe2 d1Q Rc3 b4 Bb5 b3 Qc2 Ne7 Re3 Nf5 Qf2 Nd7 Qf3 Ng7 Qe2 Qd3 Qf1 Qe7 Qf2 Nf6 Na3 Kc3 Ba4 b1B Qf3 Kb2 Qd1 d4 Be8 Ba2 Qh5 Ka1 Nf3 Rg8 Rg1 Ng4+ Kh1 h2 Bc6 Rb8 Nb1 Qg3 a8R Rb6 Bb7 Rd6 Nbd2+ Qf1 g6 d3 Ra5 Ne8 Qh7 Bg7 Qh6 Bb2 Ra6 Ng7 Nc4 d2 Re1+ d1B Ne3 Rgd8 f8N Qf4 Rc6 Qff7 Nf5 Qg8 Rb6 Qa6 Kg2 Rd3 Rd6 h1Q+ Kf1 Qb5 Qf4 Qa6 Ng5 Qe4 Bc6 Qb7 Qh2 Qc4 Kg2 Qca6 Be4 Rd5 Bb1 Be2 Be4+ Rd1 Kh1 Qab5 Rd3 Qbd7 Rd4 Bb5 Qd2 Qdd6 Rd3 Qg3 Rd4 Qd3 Rd5
7n/Pb3BK1/2p5/2Pnr1BB/qn2rpR1/p1P1bq1k/1R3r1p/NR1b2Q1 b - - 0 1 illegal: Other
1rn1r1k1/1np1r1R1/1B3pKP/1qbnN3/B1pQ4/1qp3B1/2PPb3/RqR5 b - - 0 1 illegal: No proof kernel
n1q1r1r1/1rpnk1Bp/B1Pp2r1/p7/R1P2K2/Pnb1RQR1/6N1/1b1Br3 b - - 0 2 illegal: Other
N2Rnr2/p1nnRk2/1pq2pb1/1Pr5/Br1Q2P1/2N1P1p1/3R2n1/n3bKN1 b - - 0 1 illegal: No proof kernel
3R2b1/1Bpp1p1B/2k2r2/1r2bPNr/bP1BqR2/P1K1n3/1pn1Q3/3R2rr b - - 0 1 legal: proof: d4 a5 c4 e5 b4 exd4 h4 g5 c5 gxh4 c6 a4 Nd2 bxc6 Bb2 c5 Bc1 c4 Nb3 axb3 Kd2 h5 g4 b2 f4 d3 e4 c3+ Ke3 h3 Kd4 h2 a3 d2 e5 h4 g5 c2 e6 h3 g6 Nc6+ Kc3 Nd4 g7 Rh5 Rb1 Rb5 Ra1 Ba6 Kd3 Ne7 g8B Nef5 Qh5 d1B Qf3 Qh4 Kc4 Ne3+ Kd3 Ke7 Kc3 Kd6 e7 Bg7 e8R Be5 Qh5 Kc6 Bd2 c1R+ Kd3 Ba4 Rd8 Rd1 Bh7 Ndc2 Nf3 Rab8 Rc1 R8b6 Bg2 Rg1 Bc3 Qg4 Rb1 Qf5+ Kd2 Qe4 Ng5 Qd5+ Bd3 Kd6 Qd1 Bb7 Nf3 Rf1 Nh4 Qf3 Bf5 Be4 Qe2 Kd5 Bg6 Rf6 Bd4 Qg4 Nf3 Kd6 Bh5 Bh7 f5 Bg8 Ng5 Qf4 Bc6 Qe4 Kc3 Rd1 Bb7 Re1 Bc8 Kc6 Rf1 Rd1 Rf4 Rg1 Qf1 h1R Qe2 Rh2 Bg6 Rhg2 Ra1 h2 Rb1 h1R Rd1 Rgh2 Bh7 Rh5 Bb7+
B2Q3R/2kn4/nb1NK1p1/1Br1p3/Rn2rpPr/2P2qp1/5BP1/bbr4R b - - 1 2 illegal: Other
5bQr/Knn2rBB/2pp3p/2R1n3/bBkrP3/2Npq1P1/2P1bN2/1N4b1 b - - 0 1 legal: proof: b4 e5 a4 a5 h4 axb4 d4 exd4 e4 g5 Be2 gxh4 Ra3 f5 Bf1 f4 Re3 fxe3 Ke2 Ke7 Kd3 Kd6 Kc4 b5+ Kb3 Kc5 f4 h6 g3 h3 a5 h2 f5 e2 a6 e1B f6 d3 f7 d6 a7 Na6 Ba3 Bd7 Be2 Qg5 Qc1 Nf6 Bh5 Qe3 Bf3 Ng4 Be2 Ne5 Nd2 Bf2 Ngf3 Bg1 Qd1 Rb8 a8N Rb7 Nb1 Bc6 Kb2 Kc4 Ng5 b3 Bb4 Nc5 Ka3 b2 Bg4 Be8 Bf5 Bd7 Nc3 b1R Nh3 Rb2 Qg4 Be8 Ba5 Rb4 Bh7 Ra7 Qg8 Nb7 Nb1 Ra4+ Kb2 b4 Nf2 b3 Bd2 Bb5 Bb4 c6 Nc7 Nd8 Bc5 Nb7 Nd5 Rb4 Ndc3 Ba4 Ka3 b2 Nfd1 Rb5 Bb4 Rd5 Nf2 Rd4 Nfd1 Bf2 Rf1 Bg1 Rf5 h1B Nf2 Bf3 Rg5 Be2 Rh5 Nc5 Rf5 Rc7 Rg5 Nb7 Rf5 Bg7 f8B+ Rf7 Rg5 Bf6 Bg7 Be7 Rf5 Bf8 Ba5 Nf3 Re5 Qf4 Rd5 Ne5 Rb5 Rd5 Nd2+ Kd4 Kb4 b1N Rc5 Na3 Ndb1 Qe3 Bc7 Nb5 Bb6 Nd8 Ka5 Nb7+ Ka6 Nc7+ Ka7 Rf4 Ra5+ Kc4 Bc5 Rf7 Rb5 Rd4 Bb4 Nd7 Rd5 Ne5 Rc5+
n2b1qBn/1P2pr2/1rBqn3/R7/N1pQpP2/p1P1Rn1k/b4B2/3KR2r b - - 0 1 legal: proof: e4 b5 h4 d5 a4 dxe4 h5 bxa4 h6 f5 Ke2 e3 Ke1 gxh6 Nc3 h5 Ne4 fxe4 Qe2 h4 Qg4 Qd7 Qd1 Qd8 f4 Kf7 g4 Kg6 b4 h5 d4 a5 b5 c5 c3 e2 g5 Kf5 d5 Kg4 d6 a3 g6 h3 b6 a2 g7 h4 b7 a4 d7 h2 Bd2 h3 Qc1 a3 Qc2 Rh6 Be3 Na6 Qd2 Rb6 Qc1 Nc7 Bg2 Nh6 g8B Bg7 Bc4 Qf8 d8R Bd4 Bd5 Nf7 Bf2 Nh8 Qb1 Be6 Kd2 e1N Bc4 Nf3+ Kc1 Ra5 Kd1 Na8 Qc1 Rab5 Rb1 a1N Qe3 Nc2 Ne2 Bd5 Rg1 h1R Re1 h2 Bf1 Rf6 Rd6 Rf7 Nc1 Rb6 Nd3 Be6 Be2 Kh3 Rb5 Be5 Qd2 Ncd4 Ra5 Bd5 Ba2 Ne6 Nb2 Bc4 Rd4 Bc7 Rd3 Bd8 Re3 Bd5 Bb3 Bc4 Ba4 Ba2 Bc6 c4 Na4 Rf1 Qd4 h1Q Rd3 Qh2 Re3 Rh1 Bf1+ Qg2 Be2 Qg6 Bf1+ Kh2 Bh3 Qgh6 Bg4 Qf6 Bh5 Kh3 Bg6 Qe5 Bh7 Qd6 Bg8
1b1R2b1/4B1np/P2n1p2/1qr5/B1N3K1/1p2PPpn/1N3Bkq/3NnbrQ b - - 0 1 illegal: No possible last move
K2B2R1/5N1R/npPr1b2/1b3RpN/Pn1qr1Pn/p3kQ2/1N2bp1n/b7 b - - 0 1 illegal: No proof kernel
R6b/k2n1ppp/P6r/4NPB1/1bK1bRRr/rB1Prp2/2Qq4/1nbB4 b - - 0 1 illegal: Other
r1B2Nq1/1p1Kn1BP/b1r3Pp/nPp1rk1Q/6r1/2R1bb2/2pRB2b/R7 b - - 0 1 illegal: No proof kernel
1RkB3n/1p3R2/Pr1Bp3/2KbQn2/2Pn4/1q1p1Rpr/2Bq2Pp/2N1b2q b - - 0 1 illegal: No possible last move
r3r2b/Ppp1b2p/2pR1n2/4p1N1/7N/2kN1b2/1pP1R1Pn/qBRbK2Q b - - 0 1 illegal: No proof kernel
2r1r3/1p2b2r/2QpqR1P/1R1NpR2/1p1nK2B/1p1NP3/1Pp1p1k1/n2N3b b - - 1 2 illegal: Other
b2Qn1b1/4qB2/K2p1r1b/Q1qqN3/q1Q3R1/P2bk3/1pP3P1/1B1R4 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Na3 axb4 Bb2 b3 Qe2 Nf6 Rd1 Nh5 Ba1 Nf6 Rd2 Ng8 h4 e5 f4 b5 Bc3 g5 Qg4 e4 Qf3 b2 Kf2 Nc6 Qe2 Ne5 fxe5 b1Q Bb2 Qa1 Bc1 Ra6 Nb1 Rg6 Nc3 Rg7 Nd5 Rg6 Nf4 gxf4 Bb2 Rg5 hxg5 Qb1 Ba1 Qxa1 e6 Ke7 f6+ Kd6 e7 Kc5 e8Q h5 f7 b4 g6 b3 g7 h4 Nf3 b2 Ng5 d3 Rd1 Kd4 Rh3 e3+ Ke1 f3 Rh2 h3 Rc1 d2+ Kd1 f2 Qe7 Nf6 g8B Rh6 Qh5 Ne8 Ke2 Rf6 Qa3 Bh6 f8Q d6 Rb1 Be6 Bf7 Qa8 Qa6 Qd5 Nf3+ Ke4 Rh1 h2 Rd1 Qc5 Ne5 Bb3 Rg1 h1Q a3 Qh4 Qg5 Qa2 Rh1 Be6 Qe7 Qad5 Qd8 Qf4 Rh4 Kd4 Bh5 Bg8 Bf7 Qfe4 Rh3 Qg4+ Rf3 Qd7 Rg3 Qa4 Rg4+ Qe4 Qaa5 Bg7 Nc4 Bh6 Rg3 Qe7 Ne5 Ke4 Qg6+ Kf4 Kd3 e2 Qh5 e1Q Be2 f1B Qh4+ Kf5 Rg6 Qd5+ Kc3 Qf2 Bc4 Bd3 Ba2 Qfc5+ Qc4 Qcc6 Qcc5 Ke4 Qc4+ Ke3 Rg4 Qcc5 Bb1 Qde6 Rh1 d1B Rf1 Bf3 Rd1 Qad7 Kb3 Ba8 Kc3 Qed5 Kb3 Qcd4 Kb4 Q4a7 Qab5 Qad4 Ka5 Q4c5 Ka6 Q7c6+ Qbb6 Qa4+ Qa5
q1q3QB/r1rR4/Qqn5/rn6/5bN1/nP1b2PP/k1Qqb1K1/4B1R1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 Qc2 b4 Qd1 b3 axb3 Bb7 Ra4 Ba6 Ra1 Bc8 f3 e5 f4 exf4 Nh3 a5 Ng5 a4 Nh3 a3 Ng1 axb2 g3 h5 Bg2 g5 Kf1 h4 Qe1 h3 Qd1 hxg2+ Ke1 Rh5 Na3 Rh8 Nc4 g4 Ne5 Ra4 Nef3 gxf3 Kf2 Ra7 Ke1 Ra8 Kf2 Kd7 e4 Kd6 d4 b1N h3 f5 Ra2 c5 Rh2 c4 Qc2 c3 Ra5 Bh6 Qb2 c2 Qa1 Ra7 Qa2 Nc6 Qb2 Nf6 Qa2 Ne8 Qa1 Rhh7 Bb2 c1Q Rc5 Rhc7 Ra5 Qd2+ Ne2 Ba6 Rh1 Qc8 Rg1 Bd3 Ra2 Na3 e5+ Ke7 e6 Nd6 Qf1 Ndb5 d6+ Kf6 e7 Ke6 e8Q+ Kd5 Rh1 g1R Qg2 Ra1 d7 Kd6 d5 Kc5 d8B Kb4 Re1 Ra5 Kf1 f2 d6 Raa7 Qh2 Ra5 Kg2 f1B+ Kf3 Bg5 Nc3 Bfe2+ Kg2 Bh6 d7 f3+ Kh1 f4 Qg6 f2 Rg1 f1Q Ne4 f3 Bh8 f2 Nf6 Qa8 Ng4 Qfc1 Kg2 Bf4 Bg5 Qc5 d8Q Qb6 Qdg8 Qc8 Rb2 Ra2 Rbb1 Raa7 Rbd1 f1Q+ Kh1 Qfe1 Kg2 Qa8 Bgf6 Qc3 Bd4 Qed2 Bf2 Qcc5 Qh6 Qf5 Be1 Qfc8 Rc1 Ra5 Rc5 Raa7 Rd5 Ra1 Rd4+ Kc3 Qhe6 Kb2 Rd7+ Ka2 Qc4 Rc1 Qa4 Rc4 Qa6 Ra4 Kh1 Ra5 Qf2 Be3 Kg2 Bg5 Qc5 Bf4 Qc2+
5Nn1/2nRB3/q3pN1r/2Q1n2b/P2Pq1b1/3P4/Q2Q1rb1/K1nr1Rk1 b - - 0 1 legal: proof: e4 a5 h4 f5 b4 axb4 h5 fxe4 c3 d5 Bc4 dxc4 h6 gxh6 Qe2 h5 Qf3 Bg7 Qd1 Bd4 cxd4 h4 a4 Kd7 f4 Ke6 g4 Kd5 g5 c5 f5 h5 g6 b5 g7 c3 f6 e3 f7 Ke4 f8Q c4 Qb3 e2 Ba3 h3 Qf1 c2 Qf7 c1Q+ Qd1 c3 Qa2 b3 Bb4 h4 Ba3 b4 Qb2 c2 Nf3 h2 Ne5 h3 Nf7 Kf3 Ng5+ Kg2 Rf1 h1Q Nc3 h2 Ra2 Na6 Nb1 Qd6 Nf3 Bg4 Qa1 b2 Ng5 b3 Bb4 e6 Nc3 b1R Nd5 b2 Nh7 Rf8 Ndf6 Nc7 d3 Qa6 Ba3 Qe3 Bd6 c1N Be7 Qe4 Kd2 e1N Kc3 Nf3 Re1 Qf1 Qd2+ Kg1 Kc2 Rf7 Nf8 h1B Ra3 Rh2 Qa2 Bg2 Rb3 Rh6 Rb7 Ne5 Kc3 Ra1 Kc2 b1B+ Kb2 Bc2 Ra7 Na8 Rd7 Bcd1 Ne8 Nf6 g8Q Nc7 Qgg5 Ng8 Nf6 Bh5 Qf5 Bdg4 Qfg5 Ne2 Qf5 Rd1 Qfg5 Nc1 Ka1 Ng6 Qc5 Ne5 Nd5 Rf4 Nf6 Rf2 Rxf1+
5NbB/rNQq2b1/1Q4n1/n3n3/2Bkr3/1q2b2P/Bn1PP1p1/K4b1R b - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 g5 b4 e5 f4 b5 axb5 axb4 Ra7 exf4 Ra5 Bh3 Ra1 Bc8 Qb3 h5 Qf3 g4 g3 gxf3 g4 Qd6 g5 Qd8 g6 Kd7 Ra6 Qe7 Rf6 Kd8 Rf5 Ke8 Rg5 Qd8 Rg4 hxg4 Kd1 Kd7 Kc2 Kd6 Kb2 Ke5 h3 c5 g7 f5 b6 g3 b7 f2 d6 c4 d7 f3 Rh2 b3 Nc3 f4 Na4 c3+ Kb1 c2+ Ka1 b2+ Ka2 Kd4 Rg2 Nc6 b8Q Na5 Rh2 Bc5 Nb6 Ne7 g8B Rh4 Bf7 Ng6 Bd5 Ra7 Bg2 f1N Nc4 f2 Nd6 f3 Bc6 Re4 Qc7 Ne3 Bb7 f1N Rh1 f2 Nf7 Nh2 Ba6 f1B Bb5 Nd1 Nd6 Ng4 Bc4 N4e5 Nb7 Qe8 d8Q+ Qd7 Bf3 g2 Bg4 Bb6 Bge6 b1Q+ Ka3 Qb4+ Ka2 Qb5 Ka1 Nb2 Ba2 Qb3 Bc4 Qd6 Qf6 Be6 Qfd8 Bc5 Qb6 Qd7 Qdc7 Na4 Ba3 c1B Bb4 Bg8 Ba3 Rh4 Bb4 Nb2 Bc3+ Ke4 Nf3 Be3 Ba6 Kd5 Ng5 Re4 Bd4 Ned3 Bh8 Nde5 Qb5+ Kd4 Nh7 Nd3 Qbc6 Ba3 Qf6 Nb2 Bc4 Bf8 Qa6 Bfh6 Nf8 Bg7 Qab6+
q2n3q/1P4Q1/2r3bq/B1PNn2P/3B2r1/R1Qp4/q1bR1b1K/1k3bQ1 b - - 0 1 legal: proof: e4 f5 exf5 b5 g4 h5 a4 hxg4 axb5 c5 d3 a6 d4 cxd4 b4 e5 b6 Qc7 b7 Qa5 Na3 Qd8 b5 e4 Bd3 exd3 b6 Rh4 Nb5 axb5 Nh3 Rh7 Ng1 Rh8 Kf1 Kf7 Kg2 Kf6 f4 d5 c4 g5 h4 g3 h5 d2 Nh3 d3 Ra7 d4 Qg4 d1Q Re1 d2 Re3 b4 Ng1 b3 Rc3 b2 Rb3 b1B Rb2 Qb3 Qf3 d1B Qg4 Rh6 Raa2 Ne7 Be3 Bdc2 Ra5 Nd7 b8B Qa2 b7 Ne5 Qh3 g4 Bd6 N7c6 Ba3 Bc5 Rb6 Qh8 Rab5 Ra4 Rb2 Be6 R6b4 Nd8 R4b3 Bf7 Kh1 g2+ Kh2 Bg6 Bb4 Bd3 Rd2 Bf1 Rbd3 Bc2 Ra3 d3 Qg3 Bd4 Ne2 Bb6 Bg1 Bf2 Ba5 Rb4 c5 Rd4 Qe3 g3+ Kh3 Rh7 Nc3 Rc7 Qe1 Rc6 Qe3 Ke7 f6+ Ke6 f7 Qh6 Ne4 Kd5 f8Q Kc4 f5 Qh8 Nc3 Rg4 f6 Qh6 Ra4+ Kb3 f7 Kb2 Nd5 Kb1 Qg7 Qh8 f8Q Qh6 Bh2 Qh8 Qff3 g1Q+ Qg2 Be2 Ra3 Qc1 Qf1 g2 Qd4 g1Q Qc3 Qh1 Qg1 Qf3+ Bg3 Qff8 Kh2 Bf1 Qh7 Qh6 Qg7 Qcb2 Bf4 Qb4 Be3 Qa4 Bb4 Qa7 Ba5 Qa8 Bd4
8/1nP1B2n/1Q3rrp/1R1r2P1/2Nb2q1/Q1Q3Pn/4kn2/RK1Bn1rr b - - 0 1 legal: proof: d4 a5 b4 e5 f4 exf4 a4 b5 axb5 c5 Be3 cxd4 Bd2 Qg5 Bc1 Qd8 b6 g5 h3 Bb7 b5 Bf3 Nc3 Bh5 Na2 Bg4 Nb4 axb4 b7 Na6 b8Q f3 Qf4 gxf4 hxg4 Nb8 Kd2 Ke7 c4 Ke6 Kc2 Ke5 e4 d5 c5 f5 g3 h6 c6 f2 b6 b3+ Kb1 f3 b7 d3 g5 Kd4 c7 b2 e5 f4 e6 d2 e7 Ke3 Ra2 d4 Be2 f1N Ra7 d3 Ra2 f2 Nf3 Na6 b8Q Nh2 Ra1 f1R Rg1 Qc8 Ra4 Qg4 Rd4 Bg7 Qa4 Nc5 Qaa7 Nb7 Ka2 b1R Rd6+ Bd4 Qd8 Nf6 Rc6 Nh7 Rh1 Rg8 Qc8 Rg1 Rd6 Rg6 Bb2 d1N Qa4 d2 Rd5 Nf2 Rb5 d1N Qh8 Ra5 Nd2 f3 Ba3 Nh3 e8Q+ Kf2 Qeg8 Ke3 Qb8 f2 Bd6 f1R Be7 Ndf2 Bd1 Nf3 Nc4+ Kd3 Qa7 Ne1 Qb6 Rc1 Rf5 Rd5 Qa3+ Rc3 Kb1 Rf6 Bc2+ Ke2 Qg7 Rd3 Bb3 Rdd6 Rb5 Rg6 Qf6 Rd5 Qfc6 Rf3 Qcc5 Rff6 Qcb4 Rg2 Qc3 Rfg1 Ba4 Rh2 Bd1+ Kf1 Qab2 Ng2 Bc2 Ke2+ Ka2 Rb1 Qba3 Rd1 Rg1 Rh1 Kb2 Rd3 Rc1 Rdd1 Ra1 Rdg1 Ka2 Ne1 Kb1 Rf1 Ba4 Rfg1 Bd1+
2qbqQ1K/1k4BR/n1b5/3b3b/3Rqn2/1Qr2pPR/2Pn1NBP/1n6 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 Be3 cxd4 Bg5 Qc7 Bc1 Qd8 b4 a5 f3 a4 f4 Ra5 bxa5 exf4 g3 h5 Ra2 g5 Qd3 h4 Nd2 h3 Qf3 g4 Qg2 hxg2 Ndf3 gxf3 Ra3 Qb6 Ra1 Qd8 Kd2 d5 Kd3 Kd7 e4 Kc7 b6+ Kb7 e5 f5 e6 a3 e7 f2 e8Q f3 Qe6 f4 Qe1 a2 Qe4 Qe8 Ne2 g1Q Qe7+ Bd7 Qa3 Bc6 Be3 Ne7 Qb3 Qg2 Rd1 a1Q Rc1 Na6 Qb1 Ng6 Ng1 Be7 Nh3 Bd8 Re1 Qa3+ Qb3 Qaf8 Be2 f1N Nf2 Nd2 Bf1 Nb1 Bd2 Rh7 Bc3 Rc7 Re7 Qg8 Rh7 Qh8 Nd1 f2 Rg1 Qh1 Bg2 f1N Nf2 Nfd2 Re1 Qhg8 Re5 Qge6 Reh5 Qc8 Rh3 Ne4 Ke2 d3+ Kf3 d2 Be5 d4 Bg7 Rd7 Kg4 d1B+ Kf5 d3 Bb2 Ned2 Bg7 Re7+ Kg5 Bdf3 Kh6 Kb8 b7 Rc7 Ne4 Ka7 Nf2 Bfd5 b8R Qhe1 Rb4 Q1e4 Rd4 Ka8 Qa2 Kb7 Qa3 Nc4 Qc3 d2 Qd3 d1B Qe3 Ncd2 Qb3+ Nb4 a6+ Ka7 Qc3 Bh5 Qb3 Kb8 a7+ Kb7 Bf1 f3 Bg2 Nf4 a8Q+ Kb6 Qa5+ Kb7 Qc5 Ba4 Qf8 Rc3 Be5+ Bd7 Kg7 B7c6 Kh8+ Ka6 Bg7 Kb7 Qc4 Na6 Qb3+
4r2Q/1p3qnP/2N4q/P1PR1k1B/2R1r2b/1r1B1K1n/b2Qp1Q1/3qb3 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 fxg5 c5 d4 cxd4 g4 h5 a4 Bh6 g6 Bf8 Ba3 bxa3 g5 Bg7 Nd2 Ra6 Ndf3 Bf8 Ne5 Ra8 Ng4 hxg4 Ke2 d5 h4 Kd7 c4 e5 c5 d3+ Ke3 d2 f6 Ke6 f7 a2 g7 g3 g6 g2 a5 e4 h5 d4+ Ke2 d3+ Ke3 Ne7 g8Q Nd5+ Kf2 e3+ Kf3 e2 h6 Kf5 h7 Nc6 g7 Qd6 Qc2 d1Q Qd2 Nd4+ Kf2 Ne6 Kf3 Be7 Rb1 a1B Qc3 d2 Rh3 Qb3 Rh1 d1Q Rc1 Ndf4 f8Q+ Bf6 Rh4 Nh3 Rc4 Bb2 Qe3 Bc3 Qd2 Rb8 Qd8 Bh4 Rd4 Bd7 Rd3 Bb4 Rc4 Be8 Qc8 Bf7 Qc6 Qa2 Rdd4 Re8 Rd5+ Kg6 Qf8 Re7 g8B Ng7 Qa8 Re4 Qb8 Be6 Bf7+ Kf6 Bh5 Re8 Qc1 Bbe1 Qd2 Qe5 Qa8 Qg5 Qac8 Qh6 Qa8 Re7 Qh8 Re8 Re5 Bhf2 Rc3 Rb8 Qcc8 Rg4 Qcg8 Rb4 Rc2 Rb1 Ke4 Re8 Rc3 Bh4 Nf3 g1R Nd4 Rb4 Rg5 Rg3 Bg2 Qab3 Re5 Bc4 Qd5 Rf3 Nc6 Rf4+ Ke3 Qa2 Be4 Rb2 Bd3 Qab3 Qh1 Re4+ Kf3 Qa2 Re7 Kf5 Rd7 Bf7 Qf1 Qae6 Rc1 Qef6 Rc2 Ba2 Qg2 Rb3 Rc4 Qf7 Rd5+
1kq4n/r3P1Pb/5nr1/1N1Q2Pn/1b1K2Bp/Q5N1/4p1Nq/R1bR3b b - - 0 1 legal: proof: f4 b5 c4 c5 cxb5 g5 fxg5 e5 e4 d6 d4 c4 h3 Bxh3 a4 c3 Bf4 Bc8 a5 Qxa5 d5 Qd8 Qe2 exf4 e5 Ne7 e6 Bg7 Qe5 dxe5 d6 Qa5 d7+ Kf8 Be2 Ng8 Bf1 Qc7 Rh3 Qd6 Rh1 Qe7 d8Q+ Qe8 Qd3 Qd8 Qd4 Ke8 Qd1 Bf8 Ke2 f5 g4 a5 b4 h5 b6 c2 b7 c1B b5 a4 g6 h4 b6 e4 g5 a3 g7 a2 Kf2 e3+ Ke2 f3+ Ke1 e2 Kf2 f4 Qe1 Nh6 Bh3 Bb4 e7 Nf7 Be6 Nd7 b8Q Ra7 b7 Rh6 Bb3 Nf6 Qa8 Kd7 b8N+ Kc7 Rh3 Bf5 Qd5 Qc8 Nc3 Bh7 Ne4 Rg6 Nc6 Nh8 Qc3 Kb7 Nd4+ Kb8 Rb1 a1Q Rh1 Qa5 Nh3 Qac7 Nb5 Qd6 Ng3 Qe5 Kg1 f2+ Kg2 f1B+ Kf2 f3 Ra1 Qec7 Nf4 Bg2 Rd1 Bh1 Ng2 Qd6 Bc2 Qe5 Bf5 Qf4 Rd2 Qfc7 Ke3 f2 Qcd3 f1N+ Kd4 Qd6 Rd1 Qdc7 Ne4 Ng3 Bg4 Ngh5 Qa3 Qh2 Ng3
QR4Nk/3Rq1P1/r3bP1K/2QQ1q2/3b1PB1/qn1rr2p/5p2/b1b4B b - - 0 1 legal: proof: d4 b5 f4 c5 h4 cxd4 a4 g5 axb5 gxh4 f5 Na6 e3 Nb4 Qf3 Nd5 Qd1 Nf4 exf4 e5 Qd3 h3 Qd1 f6 Nd2 e4 Ndf3 e3 Ne5 fxe5 Ke2 Ba3 Bd2 Bc5 Be1 Bd6 Bf2 exf2 Kd2 Bf8 b4 Kf7 c4 Kg7 g4 d5 c5 h5 c6 a5 c7 h2 b6 a4 b5 e4 b7 e3+ Ke2 d3+ Kf3 d2 b8Q a3 b6 a2 b7 h4 g5 d4 Kg4 e2 g6 e1B Nh3 d3 Bg2 Bc5 Be4 Bd4 Bg2 Be6 c8B Nf6+ Kg5 Qe7 Qb3 d1Q Ng1 d2 Qe5 h3 b8Q Qc1 Qbd5 d1R Ne2 Qca3 Nc3 Ra6 Rb1 a1B Ne4 Re8 Qba8 Bd2 Rb8 Kh8 Kh6 Bc1 Bf3 Rd3 Rd1 h1Q Qc5 Qa5 Qed5 Nd7 Nf6 Qa3 Ng8 Qg1 f6 Qg4 Bh1 Qf5 Qc3 Nc5 Rd2 Nb3 Qcc5 Qe5 Bd7 Bf7 Bf5 Be6 Bg4 Qf5 Rb2 Nd2 R2b7 Nb3 Rd7 Rc8 Qcd6 Rcc3 Q6c6 Re3 Qcc5 Rcd3 g7+
1Q6/2R1PQ1r/1P1nN2N/1n5p/1nnn1bq1/2qqk1pq/PBQ5/1K5B b - - 0 1 legal: proof: c4 b5 f4 c5 b4 e5 d4 cxd4 g4 exf4 Nd2 bxc4 b5 a6 Rb1 a5 Rb4 axb4 h3 g5 Qb3 f5 Qd1 f3 Bg2 f4 Bf1 Bb7 Qb3 Be4 Qb1 Bf5 gxf5 g4 Qc2 g3 Qd1 Ra6 Qb3 Rg6 Qd1 Rg4 hxg4 Qh4 Rh2 Qg5 Rh1 Qd8 e4 Kf7 e5 h5 b6 d5 e6+ Kf6 e7 Kg5 f6 d3 f7 c3 Bh3 d4 Ba3 f2+ Kf1 b3 Nb1 c2 Bg2 c1N Bd5 b2 Bc6 d2 Bb7 d3 Bd6 Nh6 Bc6 Qc7 Ba8 Na6 Be5 Nf5 Bf3 Nd6 Bd4 Ne2 Nc3 b1Q Nd5 Bh6 f8Q Nb4 Ne3 Qc3 Qb8 Rh7 Nf5 Qbb3 Qc2 d1N Bg7 Nd4 Ne2 d2 Rh4 Qa4 Bh1 Nb2 Be5 d1N Bg7 N4b5 Ned4 Nbc4 Ke2 Nde3 Rh2 Ng2 Kd1 f3 Kc1 Kf4 g5 Nh4 Kb1 f1Q+ Qd1 f2 g6 Nf3 Ne6+ Ke4 Rg2 Be3 Nh6 Qfd3+ Qc2 Bf4 Be5 Nfd4 g7 Ke3 g8Q Ne8 Rg1 Ned6 Rc1 f1Q Qf7 Qh3 Bf6 Qa8 Bh8 Qf3 Bg7 Qfg4 Bh8 Ne2 Bf6 Qb3+ Bb2 Ned4 Bg2 Qa3 Bh1 Qac3 Ka1 Qe1 Qb1 Ne5 Rc7 Qec3 Qc2 Nec4 Kb1
1QRb2B1/k3Rp1r/1nbpq3/r1p1Q3/3n2Pb/1N3qr1/P3P2N/QK6 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 e5 Na3 exf4 Nb1 axb4 Na3 b5 cxb5 b3 d4 c5 d5 b2 Be3 Qg5 Rc1 Qf6 Rc2 Qc6 Bc1 bxc1B dxc6 Bb2 Qa1 Be5 Qd1 Ba1 Kd2 Kd8 Kc1 Kc7 g4 Kb6 c7 h5 Kb1 d6 Qc1 h3 Qb2 f3 Rc3 h2 Rc2 h4 Rc4 f2 Nc2 h3 Ne3 Nc6 Rd4 Rh7 Nf3 Nf6 Rg1 h1R Nc4+ Ka7 Bg2 h2 Re4 Nd4 Re7 Nd7 Ncd2 Nb6 Nb3 Bb7 c8Q f1Q+ Qc1 Rh3 Qe6 Rg3 Qe5 Bc3 Qd1 Be1 Qc1 Bh6 Qb2 Qf2 Qa1 Qe3 Rf1 Ba5 Rd1 Be1 Rd2 Bg5 Rb2 Rg1 Bh1 Bh4 Bg2 h1Q Nh2 Rf1 Be4 Qhf3 Bg6 Rh1 Bh7 Qh6 Bg8 Qe6 Rc2 Bf6 Rc3 Bh4 Re3 Bf6 Re8 Bc6 Rc8 Bf2+ Nf1 Rh7 Nh2 Bd8 Re4 Kb7 Re3 Ra5 Re4 Na4 b6 Ka6 b7 Nb6 Qh8 Ka7 Re5 Qed5 Re7 Qe6 Qe5 Rg2 Qf4 Bh4 Qe5 Rg3 b8Q+
B4N1r/Nb1n2BP/2p3Pb/q3bPpK/p5R1/1b3Qr1/kN4q1/1r2Q3 b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 Ra5 dxc4 Ra4 Qd6 Ra1 Qd8 b4 a5 e4 fxe4 Na3 a4 Nb1 Nc6 Qf3 Na5 Qe2 Ba6 Qd1 Bc8 bxa5 g5 f4 h6 g4 Qd5 f5 Qb7 Qf3 Qd5 Qf4 Qd8 Ra3 Be6 Rg3 gxf4 g5 Bd7 g6 Bc8 Rg5 hxg5 Ke2 Kd7 h4 Kd6 d4 Kd5 h5 e5 h6 c3 b6 Kc4 a6 Kb3 d5 c2 b7 e3 Kf3 e2 Kg4 e1Q b8Q+ Bb7 a7 f3 d6 e4 d7 e3 h7 e2 Bb2 c1B Kh5 f2 Bg2 f1B Bg7 Ka2 Na3 Qg3 Rh4 e1R Nh3 Re3 Nf2 Bc4 Rg4 Bb2 Nd1 Be5 Nb5 Bb3 Nb2 Rc3 Qc8 Rb8 a8Q Re3 Bc6 Qg2 Na7 Rg3 Bf3 Ba6 Qe4 Bb7 Qe1 Nf6+ Kh6 Qe7 d8N Qb4 Ne6 Nd7 Kh5 Qa5 Qe8 Nc5 Qc6 Nd7 Bf6 Bh6 Bg7 Ba6 Qcc3 Rb5 Bb7 c6 Ba8 Bb7 Qd3 Rc5 Qde3 Rc1 Nf8 Rb1 Qf3
R2R1r2/K1P3p1/pB3Bkq/qbQ2qP1/1P2n2B/3n1q1p/NQ6/n6r b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 b5 axb5 d5 e3 e5 Ra5 exf4 Qe2 d3 Qd1 d2+ Kf2 d4 Ra1 d3 g4 h5 g5 Ba6 Be2 Bc5 Kf1 Bd4 exd4 Bc8 h4 Qb6 Bg4 hxg4 Nc3 Qd8 Nce2 Nc6 Nh3 gxh3 Ng1 Nb8 Kf2 f5 b4 Kf7 c4 f3 Ke3 f2 b6 f1Q h5 Bb7 c5 Ba6 c6 Bc8 h6 Qc7 h7 Ba6 b7 Kg6 d5 f4+ Kd4 f3 Kc5 f2 d6 Bb5 d7 Nf6 d8B Qa5 Qe2 d1N Be3 Rf8 Qb2 d2 h8Q Qg2 c7 f1Q Bf2 Qf3 Bh4 Nf2 Ne2 d1Q Nc1 Nc6 b8B Nd4 Na2 Nc2 Qg8 Qde2 Qc4 Qe6 Qd5 Q1d3 Rhd1 Qde4 Be7 Q4f5 Qde5 Qea6 Rd8 Qae6 Rad1 a6 Ba7 Na1 Bb6 Rb8 Re8 Rd8 Qd5 Rd7 Ra8 Rdd8 Qde5 Rde8 Rdd8 Nd3+ Kd4 Ne4 Qc5 Qg8 Bf6 Qh7 Be5 Qh6 Kd5 Bc4+ Kc6 Bb5+ Kb7 Re6 Ka7 Rc6 Qe3 Rc1 Qc5 Rh1 Bf6
Bn5r/pq3QP1/2kN4/5q2/KnRpP1rr/1P2p3/1R2rqBB/4Qq2 b - - 0 1 illegal: No possible last move, all moves rejected
nq2N3/n3PQ2/n2b1bB1/rR2Qn2/3P1Pqq/1K3nr1/R3nk2/2Bn3Q b - - 0 1 legal: proof: f4 a5 c4 d5 b4 dxc4 f5 axb4 f6 exf6 e3 f5 Kf2 f4 Bd3 f3 Ke1 f2+ Kf1 Bh3 Ke2 Bc8 Nc3 f1N Ba3 f5 Rc1 h5 Ne4 f4 Ra1 Bh3 Bc1 f3+ Ke1 Bf5 Nf2 Be4 Ng4 f2+ Ke2 Bf3+ gxf3 hxg4 h4 Kd7 a4 Ke6 f4 Kd5 e4+ Kd4 h5 c5 a5 g5 a6 b5 a7 g3 e5 b3 h6 g2 e6 g4 h7 c3 Ra2 b2 Bb1 g3 d3 c4 Bc2 b1Q Ra1 b4 Bd2 b3 Ra4 b2 Rh3 Ne7 Ra1 Na6 Ra5 Nf5 Rh6 N1e3 Rh1 f1N Re5 Qh4 Rh2 Rg8 h8Q Nd5 Qf6 Ndc7 Qf7 Bd6 e7 N1e3 Bb3 c2 Ke1 c1N Rc5 c3 Bd5 c2 Be4 Ne2 Qg6 c1B Qb3 Nd1 Nh3 g1N Qbf7 g2+ Nf2 Rg7 Qh5 Rg3 Bc3+ Ke3 Rb5 Ng7 Bh7 Nf5 Ng4+ Kf3 Ba5 Be3 Bg6 Bd4 Kd2 Bf6 Nh6+ Kf2 d4 Qa2 Kc2 Nf3 Bc3 b1N+ Bb2 Nbc3 Ng8 Qa1 Kb3 Qb1 Rh1 g1Q Rh2+ Qg2 Qh8 N3d5 Qhg7 Nb6 Qh8 Nc8 Qh5 Rb8 a8Q Na7 Qad5 Na8 Qe5 Rc8 Qh6 Rc5 Qh8 Qe4 Bc1 Qb7 Qh5 Qb8 Qh8 Bg5 Nf6 Rd5 Ne8 Bf6 Rb4 Ra5 Rb5 Kf1 Qh6 Qgh3 Qh5 Q3g4 Qh8 Neg1 Rc2 Ne2 Ra2 Kf2 Qh6 Qhg5 Qh3 Q5h4 Qh1
1q2qr1Q/qn3bbP/1Q2BRn1/1q2RB2/3P4/q2r1P2/q1N3Qb/r2k3K b - - 0 1 legal: proof: e4 d5 a4 f5 c4 dxc4 f3 fxe4 Nh3 b5 axb5 g5 Ng1 g4 Qa4 g3 Qc2 Qd3 Qd1 Qd8 b3 h6 Bb2 Qd4 Nc3 Bb7 Ke2 Bg7 Nd5 h5 Ne3 Qd6 Bd4 Qd8 Ng4 Bc8 Bf2 gxf2 Ne3 Nh6 g4 Ng8 g5 Bf8 Ng4 hxg4 d4 Kd7 h4 Ke6 b6 Kd5 h5 e5 h6 a5 b4 c5 b5 a4 b7 a3 b6 g3 g6 g2 h7 a2 g7 c3 Rh4 Kc4 Rh6 e3 Qc2 e4 Rc1 a1Q Qd3+ Kb3 Nh3 g1B Rd6 c4 Bg2 Ra3 Kf1 Nc6 b8Q Na5 b7 Ne7 g8B Ng6 Qc7 Be6 b8Q+ Nb7 Qd2 c2 Qc5 c3 Qg5 Bf7 Qh5 Bh2 Rd5 Bg7 Rc5 Qa2 Ra1 c1Q+ Qd1+ c2 Qd6 Qb8 Qde5 Qa7 Qf6 Qcb2 Re5 Kc3 Qg4 c1Q Qe1+ Kc2 Qb6 Rd3 Nf4 Qb5 Nd5 Qca3 Bh3 e2+ Kg2 f1R Qf2 e3 Nb4+ Kd2 Qfh4 e1Q Nc2 e2 Qhd8 Qeb1 Qg3 e1Q Bf5 Kd1 Qdf6 Be8 Bge6 Rf8 Qg4 Bf7 Qh3 Bh6 Qh8 Bg7 Qg3 Qe4 Qf2 Qec6 Qg1 Qe8 Kh1 Qbc1 Rb1 Qab8 Rb4 Qaa7 Rc4 Qca3 Rc6 Kd2 Rd6 Ra1 Qf1 Bg1 Qg2+ Kd1 Bd7 Bh2 Rf6 Qaa8 Bc8 Qa8a7 Bce6
4q3/Pb2P1bK/1n1r2QN/1Q5Q/1nRB3b/k4rqb/Pr2RqN1/4b2b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 cxd4 f5 g3 Bh3 g2 f6 exf6 Kf2 f5 Bg4 fxg4 Ke1 g3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 c4 g5 e4 d5+ Ke5 f5 h4 b5 h5 f4 a6 d3 h6 f3 h7 g4 c5 f2 a7 f1Q c6 d2 c7 d4 Qe2 d1R Bg5 d3 Bh6 d2 Na3 Qe8+ Kd4 Nd7 e5 Bb7 c8Q Qf2+ Kd3 Rb8 e6 Ngf6 e7 Nd5 Ke4 N7b6 Qf5 Bg7 Qc8 Rf8 h8Q Rf3 Nh3 g1B Bg5 g2 Qh6 g3 Qg4 Ka4 Qc4+ b4 Qc7 b3 Qc4+ Nb4+ Qd5 b2 Be3 b1B+ Nc2 Bh2 Qgh4 g1B Q4h5 g2 Ng5 Bg3 Nf7 Bh4 Q6g6 Bh2 Rg1 B2g3 Re1 g1Q Nh6 Qgh2 Bf4 Qhg2 Kf5 Qgg1 Re4 Qge1 Ne3 Ka3 Qe5 Bd3 Qd5 Bf1 Rc4 Bg2 Rb1 Bh1 Qb5 Rc8 Ng8 Qeg1 Qgc6 Qfg2 Rc2 Q1h2 Rbc1 Be1 Nh6 Qf2 Ng2 Qhg3 Rb2 Rd8 Rc4 Rb1 Rbc2 Rb2 Qe4 d1B Rd2 Bc2 Re2 Rfd3 Qe6 R8d6 Qef7 Bf3 Be5 Bb1 Bf6 Bg4+ Kg6 Bh3+ Kh7 Rf3+ Qfg6 Be4 Be5 Bb7 Bd4
5k2/r1b5/rQ1BP3/NnbQ2P1/2q2BK1/Q3P1n1/R1bq1bq1/R1n1nn2 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 dxc4 b4 axb4 Nc3 g6 Ne4 Qg5 Bh3 Qd8 Ng3 h5 Nf5 gxf5 g5 Be7 Bg4 hxg4 Qc2 Bd6 Qd1 Bf8 Kf2 c5 Kg3 b5 a4 c3 d4 c2 h4 c4 e6 f4+ Kh2 f5 h5 b3 a5 f3 Kg3 b2 h6 b1N h7 b4 a6 b3 a7 f4+ Kh4 f2 d5 f1Q Ra5 c3 Rh2 b2 Rg2 f3 Bf4 c1N Be3 g3 Bf2 c2 Qd2 Nc6 Bc5 f2 Ra4 Ne5 Ra3 Ne7 Re3 Nc3 Kh5 b1Q Rf3 Qb3 Kh4 Nf5+ Kh3 Qc4 Bd6 Nb5 Ra3 Nf3 Ra1 Ne1 Bf4 Bc5 Nf3 Kf8 Kg4 Qh1 Ne5 f1N Rf2 g2 Nc6 g1B Na5 N5g3 d6 Qg2 d7 Bb7 Qd4 Be4 Qd5 Rg8 h8B Rg7 Qb7 Bg6 Qd5 Rh7 Be5 Rg7 Rf3 Bgf2 Rfa3 Bd3 Nb3 Qa5 R3a2 Qd2 Na5 Nb3 Ra3 c1B R3a2 Bc2 e3 B1a3 Qd6+ Re7 Qd5 Nc1 d8Q+ Re8 Qc7 Re7 Qcd6 Bb6 Qb4 Bc7 Qbd6 Bc5 Qb6 Rae8 a8Q Rf7 Qaa6 Ra8 Nb7 Rd7 Qa3 Rd6 Na5 Ra7 Qbb7 Rda6 Qb8+ Ke7 Qb6 Kf8 Bd6+
1r2Q2B/2r1r2n/1b2RqRN/PnP2k2/1nPr2nQ/2R4r/n3N2r/4K2b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 g3 Bh3 g2 f6 exf6 Nf3 f5 Bg4 fxg4 Ng1 g3 a4 Ke7 h4 Ke6 a5 b5 c3 f5 e3 g5 h5 d5 h6 d4 h7 b3 Kd2 b4 Ke2 g4 Qd3 b2 Ra3 f4 Ke1 f3 Kd2 f2 Nf3 g1R Rh4 f1N+ Kd1 b3 Rh6+ Qf6 Nfd2 g2 Qb5 g3 Qa6+ Kf5 Ra4 d3 Ke1 Nc6 Qc4 Nb4 Ne4 d2+ Ke2 d1R Ned2 Nh2 Ne4 Ng4 Qa6 Bb7 Qb6 Rge1+ Kf3 g1R Qc6 g2 Qe8 Rd4 Rg6 Rb8 Ra3 Rh1 c4 g1R Bd2 Be7 Nc3 b1N Ne2 b2 Rc3 Na3 Bc1 b1N Bb2 Rgf1+ Kg2 Rf3 Ng5 Nb5 Nf7 Bd8 Ba1 Bb6 Bb2 N4h6 Ba1 Rg3+ Kf2 Rhh3 Bb2 Bh1 Ba1 Rc1 Bb2 Rc2 Ke1 Ng4 Ba1 Rb7 Bb2 Re7 e4+ Ke6 e5 Kf5 e6 Rf3 Nf4 Rch2 Ne2 Rc7 e7 Re3 Qb8 Ree4 e8R Ree7 Ba1 Qd6 Qd8 N8f6 Qb8 Rf8 h8Q Nh7 Qa8 Qf6 Qd8 Red7 Re6 Re7 Qd7 Rb8 Qde8 Nf8 Qh4 Nh7 Ra3 N1c3 Bb2 Rd6 Rb3 Nca2 Bd4 Qg5 Bh8 Qf6 Rc3 Rd4 Nh6+
2B1nr1n/B1q1nn2/bn1bbQ2/1b5b/3q2bP/N1R2PRQ/P4R1K/k7 b - - 0 1 legal: proof: d4 a5 g4 f5 b4 axb4 d5 b5 f3 h5 Nd2 hxg4 Ne4 fxe4 d6 Ra3 f4 Rf3 exf3 cxd6 Kd2 d5 Ke1 d4 Kf2 Kf7 Kg2 Ke6 c4 d5 h4 g5 c5 d3 c6 e3 c7 e2 f5+ Ke5 f6 Kd4 f7 Kc3 Rh3 e1N+ Kh2 e5 Kg3 e4 Rb1 e3 Ba3 d2 Bc4 b3 Rc1+ Nc2 Rb1 b4 Bf1 d4 Ba6 b2 Bf1 e2 Kg2 e1N+ Kg3 b3 Bb5 d3 Bc6 Nd4 Bc5 Ne6 Rh2 Bd6+ Kf2 g3+ Kf1 g2+ Kf2 g4 f8Q g3+ Ke3 Nd7 Be4 Ba6 c8R Qc7 Bf5 Ng7 Qe2 d1B Rb8 d2 Ke4 Ne8 Bg4 Nd3 Bf5 Nf4 Ra1 b1B+ Qd3+ Kb2 Bb6 Be2 Bg4 d1B Rb7 Ng6 Bh5 N8e7 Qh6 Rf8 Bf2 Nb6 Bc5 Nh8 Bg4 Bf1 Ne2 g1N Ra7 g2 Nd4 Nh3 Nc2 g1Q Rf2 Ng5+ Ke3 Bh3 Qf1 Bde2 Na3 Ngf7 Bc8 Be6 Qh3 Bg6 Rc1 Bh5 Rc3 Ka1 Qf6 b2 Rb7 b1B Bd4 Na4 Ba7 Bbf5 Rb5 Bfg4 Rg5 Beb5 Rg8 Ne5 Kf4 Nb6 Rg7 Qd1 Kg3 Qd4 Kh2 Nef7+ Qf4 Bgf5 Rg3 Bfg4 Qf6
2BK4/2NBQ1P1/k1bnp2n/1r4nr/qP1qq2N/3Q1Bb1/4P3/2qR1r1q b - - 0 1 illegal: No possible last move
3Q1K2/2bp4/NB1P1nB1/2r2Q1P/2rB2Rk/6q1/qb1n1P2/n2qbrNn b - - 0 1 legal: proof: g4 f5 c4 h5 a4 hxg4 b4 b6 b5 Bb7 Ra3 Bf3 Re3 a6 exf3 axb5 f4 bxc4 Re4 fxe4 f5 c3 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Ke3 c5 d4 e5 h4 b5 a5 c4 d5 c2 h5 g3 a6 g2 a7 b4 Nc3 b3 Nf3 g1Q Nh4 b2 Nb1 g4 Qd3 Kg5 f6 c3 f7 g3 Rh3 g2 Na3 b1N Qc4 Qa5 Bd3 Qd1 Ng6 g1Q Rh2 Bd6 f8B Bc7 d6 Nd2 Nf4 Na6 Ng2 Nc5 Nb5 Qa2 Qf7 Ncb3 Rh3 Nf6 Na3 Na1 Nb5 Rc8 Ne1 Qg3+ Nf3+ Kg4 Bb2 c1N a8Q c2 Bh6 Ne2 Bd4 c1B Rh1 Ba3 Rg1 Bb2 Bg7 Kh3 Bb6 Rhg8 Bh8 Rg5 Bb1 Qg2 Qg6 Ng3 Qf5+ Rg4 Bc2 Nh1 Qb8 Qg3 Rg2 Qh2 Ng1+ Kh4 Bg7 Rf4 Rg5 Rg4 Bb3 Rf4 Bf7 Rg4 Bg6 Qg3+ Qf3 Bd8 Qa8 Rc5 Nc7 Rf4 Na6 Bc7 Qf8 Qc2 Ke2 e3 Qd8 Rfc4 Qf5 Qd1+ Kd3 e2+ Qf3 Qg4 Qf5 e4+ Ke3 Qg2 Kf4 e1R Bh8 Rf1 Bg7 Ne8 Be5 e3+ Bd4 Rc6 Ke5 e2 Bh7 e1B Bg6 Ng7 Kf6 Qg3 Kf7 Ne8 Kg8 Nf6+ Kf8 R6c5 Rg4+
2nKb1QR/1r2r1r1/1r1QNkr1/3P1qPb/1Rr2B1n/3Ppq2/1n3N2/7R b - - 0 1 legal: proof: e4 a5 h4 f5 b4 axb4 h5 fxe4 c3 d5 Bc4 dxc4 h6 gxh6 Qe2 h5 Qf3 Bg7 Qd1 Bd4 cxd4 h4 Ke2 Kf7 Ke3 c5 Kf4 h5 Kg5 b5 f4 e3 a4 b3 g3 b4 a5 c3 f5 e5+ f6 h3 d5 c4 a6 h4 a7 c2 Qf3 c3 Bb2 c1R Ba3 b2 Qe2 c2 Nf3 b3 Qc4 e2 Nc3 e1R Nb5 b1R Qc7+ Nd7 Kf5 b2 Ra2 h2 Rf1 h1B Kg5 e4 Qf4 h3 Nc3 h2 Nb5 Rh6 Ra1 Ne5 Qf5 Qf8 Rg1 Ne7 Nbd4 N5g6 Qg4 Nh4 Ra2 Bd7 Ne6 Be8 Bd6 Nc8 Ra4 e3 Rb4 Rg6+ Kh5 Red1 Ne1 Bf3 Bf4 h1Q Nd3 Qg2 Rh1 Rg1 Nf2 Be2 Bd6 Qf3 Bf4 Rb8 a8Q Rb7 Qb8 Ra1 Qe5 b1R Qd6 Rg7 Kh6 Raa7 Qg5 Re7 Qg4 Rab7 Kh5 Ng6 Kg5 Rb2 Kf5 Nh4+ Ke5 Rcb1 Qg5 c1N Qg4 Rc2 d3 Rc4 Qg5 Nb3 Qg4 Nc5 Qg6+ Kg8 f7+ Kh8 Kf6 Na4 Qg5 Nb2 Qg4 Qe4 Qg6 Bh5 Qg5 Qf3 g4 Rgc1 Qg6 Rc6 Qg5 R1c4 Qg6 Qg8 Qg5 Qh7 Qg6 Rcb6 Qg5 Qhe4 f8R+ Kh7 Rg8 Ra1 Rf8 Raa6 Qc6 Rg8 Nc5 Rb5 Nd1 Rec7 Nf2 Rd7 Qe6 Rc6 Qe5 R5b6 Qb8 Rg5 Qe5 Rcc7 Q5d6 Rdg7 Qf7 Kh6 Rh8+ Qh7 Qf8 Rf7+ Ke6 Kg6 Qg8 Na7 Qc6 Rfe7+ Kd6 Kf6 Ne6 Rb5 Qc7 Qf5 Qb8 R5g6 Qd8 Rb8 Qc7 R5b6+ Qc6 Bd7 Kc7 R8b7+ Kd8 Be8 Qd6 Nc8 g5+
n2K1BbN/2Q2r2/4PnQ1/n2n2k1/1q2P3/n1b3nP/1pr1RB1B/4Nq1r b - - 0 1 legal: proof: c4 e5 b4 a5 g4 h5 f4 hxg4 fxe5 d5 b5 dxc4 a3 Rh4 Qa4 Rh7 Qd1 Rh8 a4 Nf6 b6 Ne4 Bg2 Bf5 Ra3 Rh5 Rb3 Rh3 Rb4 axb4 a5 Nf6 a6 Ng8 a7 Rh6 Bc6+ Bd7 Bb5 Rh8 Ba6 bxa6 Ba3 Bf5 Bc1 Bc8 Kf2 Ke7 Kg3 f5 Kf4 g5+ Kg3 c5 d4 f4+ Kg2 c3 e4 c2 b7 b3 d5 b2 Qe1 a5 Na3 a4 Bd2 c1R Qd1 c4 Qf3 c3 Be3 g3 Nb1 c2 Bd4 g4 Na3 Na6 b8B Qb6 Bc7 Be6 Qe2 Qb4 Nb1 a3 Nh3 a2 Rd1 a1N Na3 f3+ Kh1 f2 Kg2 f1N Nf4 Bg7 Bf2 Nf6 Re1 Bg8 e6 Rf8 a8Q Rf7 Qc4 Rh3 Be5 Nc7 Re2 Rh6 Qac6 Na8 Bc7 Rh4 Qb7 Rh3 Nb5 Rh8 Nd3 Rh6 Ne1 Ne3+ Kh1 Rh3 Nd6 g2+ Kg1 Ne8 Bb8+ Kf6 Qcc7 Kg5 Qa7 Rh7 h3 Nf6 Kh2 g1N Kg3 Rb1 Nf5 c1N d6 Ncb3 d7 Ned5 d8B Nc2 Nd6 Na5 Be7 Na3 Bf8 Rh8 Nc4 Rh5 Ne5 Rh7 Ng6 Rd1 Kg2 g3 Nh8 Rh5 Rc2 Ne2 Kf3 g2 Qab7 Ng3 Re2 g1Q Qa7 Ne3 Qab7 Kh4 Kf4 Qf1 Qa7 Rh7 Ke5 Ned5 Qab7 Qd2 Kd6 Kg5 Bba7 Rb1 Bg1 Rc1 Bh2 Rc2 Bb6 Rh4 Bd4 Rf4 Qa7 Rf2 Bb6 Rg2 Bf2 Rg1 Qab7 Rh1 Qa7 N5c4+ Kc6 Qa5 Kb7 Qa4 Kc8 Na5 Kd8 Qb4 Qab7 Ne8 Qa7 Bc3 Qab7 Rf3 Qh7 Rf7 Qc7 Nef6 Qg6+
n5R1/1N1rr3/P1Brq1R1/Qbrb3n/b1rPNnR1/Q1n5/Ppk2K2/8 b - - 0 1 legal: proof: f4 a5 h4 g5 c4 gxh4 f5 d5 f6 dxc4 Qb3 a4 Qd1 a3 Rh2 exf6 Rh1 f5 b4 f4 Bb2 axb2 Qc2 Bc5 Qc1 Bb6 Qd1 Ba5 bxa5 Qd4 Na3 Qf6 Nb1 Qd8 e4 Ke7 d4 Kf6 g4 b5 a6 c5 Be2 h5 Bd3 h3 Qc2 h4 Qc1 b4 Rh2 f3 Bf1 b3 Rf2 h2 Rd2 h1N Bh3 c3 Na3 b1N Re2 f2+ Kf1 c2 Rd2 c4 Kg2 f1B+ Kf3 c3 Ne2 b2 Bg2 h3 Qe1 c1R Rd1 c2 Qd2 h2 Qe3 Ng3 Nf4 h1B Qc3 Ne7 Qa5 Re8 Rd3 Nh5 Qc3 Qd7 Rd2 Ra7 Ke3 Ng6 Bf3 Qe6 Rf2 Bb5 Qb4 Bcd7 Qd2 Nc3 Nh3 Re7 Nc4 Ngf4 g5+ Kg6 e5 Kf5 Bb7 Bd5 g6 B7c6 g7 Nd7 g8R Nb6 Rfg2 Na8 Kf2 Ke4 R2g7 f5 Rg6 Ba4 Qe1+ Kd3 Nd6 Bcb5 Bc6 Rad7 Nb7 Rd6 Ng5 Red7 Qg1 Re1 Qg2 c1R Ne4 Kc2 Qg5 Rg1 Qd8 Rg5 Rh6 Rgg7 Rg6 Rge7 Qa5 Ng2 Re8 f4 Reg8 f3 Rg4 Ngf4 Rb1 Rh1 Rbg1 Rh3 R4g6 Rh1 R1g4 Rc1 Ke3 f2 Kf3 Qf5 e6 f1R+ Ke3 Rg1 Kf2 Rge1 Ng3 Re5 Ne4 Re8 e7 Qe6 Ng5 Rc8 e8Q Rcc7 Qc8 Re7 Qf8 Rcd7 Ne4 Nd1+ Kg1 Bdb3 Qc8 Kb1 Bd5 Rcc6 R6g5 Kc2 R5g6 Rc3 Qc4 Rf5 Bc6 Rc5 Qcb4 Bd5 Qa3 R3c4 Kf1 Nc3 Kf2
3Q1k2/2QKbP2/r2B2qR/2R3b1/3nq1PP/1bnb1bNQ/n5p1/N3rb2 b - - 0 1 illegal: No possible last move, all moves rejected
b1Rk1b2/1Q1P2bP/PNr2qQ1/K2Rr1n1/1p6/b1q5/B2rn1N1/1Qb1b3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Bb2 exf5 Bf6 f4 Bh4 Qd7 Bf2 Qd8 Bg3 fxg3 e4 g5 d4 c5 Kd2 b5 a4 f5 h4 b3 Kc3 f4 a5 g2 d6 f3 h5 b2 d5 f2 e5 c4 Kb4 c3 h6 c2 h7 c1B a6 g3 e6 g4 e7 Bb7 Qb3 Qc8 Ra5 Nf6 Qc3 Nc6+ Kc5 Ne4+ Kb6 Nd4 Ne2 g1B Qc7 g2 Rh6 g3 Ra3 Ng5 Nf4 Ne2 Nd2 b1R Nc4 Rb2 Re6 Rd2 Ra2 b4 Ka5 Ba3 Rf6 Rb8 Rc2 Ba8 Rf5 Rb6 Qb8 Rc6 Nb6 Bh2 Rc4 g1B Qb7 g2 Re5 Bg3 d7+ Kf7 d8Q Qc7 Qd6 Ke8 Qe6 B1h2 d6 g1B Bg2 f1Q Bd5 Be1 Qf5 Bd4 Ng2 Bf4 Qb1 Qf2 Rf5 Bdg7 Rc3 Qd4 Ba2 Qf6 Rd5 Qc8 Rc4 Qh3 Rcc5 Qhc3 Rc4 Rc2 Rcc5 Bfc1 Rc4 Rd2 d7+ Kf7 Rdc5 Ke6 e8Q+ Kd6 Qeg6 Ke7 Rd4 Kd8 Rd6 Be7 Rc4 Re8 Rd5 Bef8 Rcc5 Re5 Rc4 Rd6 Rc7 Rc6 Rc8+
4Kbn1/P3Q2R/4nq1R/prr1N3/Rb1bbnnB/2P2P2/br6/1Q1kN3 b - - 0 1 illegal: No possible last move, all moves rejected
R1kb4/1n2q1q1/bpPQ4/R1QKP1B1/rqQ1Nq2/P2Br1n1/bq3b2/8 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g4 h5 Nd2 Qa5 Ne4 Qd8 Nf2 f5 gxf5 Be7 Ng4 hxg4 Rb1 Bc5 Ra1 Bf8 Kd2 g5 Kd3 d5 h4 Kd7 c4 g3 e4 b6 e5 g2 a3 b3 c5 b2 h5 b1Q+ Qc2 f3 f6 g4 h6 g3 f7 f2 h7 Ra4 Bb2 Ne7 Nh3 g1Q Bc1 g2 Bd2 Nf5 Rh2 Na6 Be2 f1Q Bg5 Qb2 Nf2 Be7 f8Q Ng3 Nd1 Qf4 c6+ Kc7 Ne3 Nc5+ Kd2 d3 Rh6 d4 Qe8 Ba6 Qg6 Nb7 Rb1 Kc8 Qd6 Qd7 Rg6 Bd8 Rg7 Qe7 Rf7 Rg8 h8Q Rg7 Qh1 Rh7 Rg7 Rh3 Rd1 Qb4+ Qc3 Qh2 Qf1 g1B Rb1 Bf2 Qg1 Qc4 Rb5 Qb4 Qc1 Qg1 Ra5 Qb2+ Q1c2 Qg2 Qc4 Qge4 Kd1 d2 Nd5 Qh7 Rf7 Qg7 Nf6 Qb4 Q2c3 Qb2 Qc1 Qb4 Kc2 d1B+ Kd3 Bb3 Ne4 Ba2 Qe3 Qe1 Kc2 d3+ Kb2 d2 Kc3 Qb1 Kd4 d1Q+ Bd3 Qdb3 Kd5 Q1b2 Qd4 Qb4 Q4c5 Qef8 Rd7 Qfe7 Qb5 Nc5 Ra7 Nb7 Qbc5 Nh1 Qh6 Re3 Qhd6 Ng3 Ra8#
N1B1Q3/n7/rqB2n1N/1qpqPP1Q/1rPb3Q/3KR3/7b/1rb1bkq1 b - - 0 1 legal: proof: d4 e5 e4 exd4 a4 a5 b4 axb4 e5 f5 Ra3 Ra5 Re3 Ra8 g4 b6 f4 h6 Re4 fxe4 f5 Ba6 Bg5 hxg5 f6 Bc4 Nc3 Be6 Nb1 Bf5 gxf5 Ra7 Bb5 Ra5 Bf1 Ra8 Kd2 c5 h4 d5 a5 Kd7 c3 Kc6 f7 b5 a6 g4 h5 g5 h6 g3 a7 d3 h7 g2 Qe1 d4 Be2 Kd5 Rh2 Kc4 Qh4 g4 Qg3 e3+ Ke1 b3 Qf4 b4 Bd1 e2 Kd2 e1B+ Kc1 d2+ Kb2 Kd3 c4 g3 Qh4 Qb6 Bg4 d1Q Rh1 Bh6 f8Q Bc1+ Ka1 b2+ Ka2 b3+ Ka3 Nc6 Rh2 Nf6 Nh3 g1B Re2 g2 Nc3 Bh2 Nd5 g1B Bf3 b1R+ Ka4 Bgf2 Qe8 b2+ Ka3 Rb8 a8B Na7 Nc7 Rg8 h8Q Rg6 Re3+ Kd2 Q8h5 d3 Re4 Bd4 Re3 Qb5 Bfe4 Qg4 Bec6 Qg1 Nf2 Rb7 Rf3 Ke2 Re3+ Kf1 Ng4 d2 Nh6 d1Q Ka2 Rb6 Bab7 Qf3 Ba6 Qd5 Bc8 Ra6+ Ra3 Ra4 Na8 Rb4 Re3 Nh7 Q5g5 Rd6 Qgh5 Nf6 B6b7 Rb6 Bc6 Ra6+ Ra3 Qb6 Bb5 Rba4 Kb3 Ra1 Kc2 b1Q+ Kd1 Qb2 Re3 Rb1 Bc6 Q2b5 Kc2 Rab4 Kd3
1kq1q1b1/qNrB1N1n/4P2p/Q7/rqBbnP1N/1P4r1/6r1/Q3b1RK b - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 g5 d4 cxd4 Bf4 gxh4 Ra4 d3 Rd4 exd4 e5 f6 e6 Be7 Bc7 Bf8 Be5 fxe5 c4 d5 f4 a5 Kf2 h3 g4 e4 g5 a4 c5 a3 b3 e3+ Kg3 h2 Kg2 h6 b6 e2 c6 e1B c7 d2 b7 a2 g6 a1Q g7 d3 Qf3 d1R Qh3 d2 Qe3 d4 Bb5+ Nd7 b8Q d3 Na3 Ra4 Qf3 Bc5 Ba6 Bb7 c8N Be4 Qb4 Bh7 Qd4 Ngf6 g8B Ne4 Nh3 Nf8 Na7 Qc8 N7b5 Rc1 Qb2 Kd8 Na7 Kc7 Nc4 d1R Qb1 d2 Nc6 Bd4 Bf7 Bg8 Ne3 Nh7 Na5 Kb8 Ng5 Rc7 Qh5 Qa2 Rg1 h1Q+ Kf1 Qh3+ Ng2 Qc3 Nh4 Qb4 Kg2 Rdc1 Bf1 d1Q+ Kh1 R1c2 Bc4 Rg2 Nb7 Qc1 Qa1 Qe8 Bd5 Qcc5 Bc4 Qc2 Bg6 Qa7 Nf7 Rg3 Be2 Qcc6 Bc4 Qcd7 Qa5 Qdc8 Ne5 Bf7 Bh5 Rhg8 Bf3 R8g5 Bfe2 Bg8 Nf7 Rg7 Bb5 Rg2 Bd7 R7g3 Bc4
K2RrQ2/1n1n1nR1/3P1R2/1qp2Nrn/3N3b/P4b1P/r1Q2k2/1r1q1B1q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Bb2 exf5 Bf6 f4 Bh4 Qd7 Bf2 Qd8 Bg3 fxg3 d4 Ke7 Kd2 Kd6 Ke3 b5 Ke4 f5+ Kf4 c5 e4 g5+ Ke3 g2 h3 f4+ Kd3 f3 Qa4 g3 Qb3 f2 Nd2 g4 Ne2 g1R Qc2 b3 Rb1 b4 Kc4 g2 Kb5 g3 Ra1 b2 Nf3 b1R Nf4 b3 Qc1 b2 Nd3 Qe8+ Kb6 Bb7 Nd2 Nh6 Qc4 Nf7 Nf4 Nd7+ Kb5 Be7 Ng6 Bh4 Nb3 Qb8 Ne7 Re8 Qc2 Nd8 Be2 f1N Bd3 Nf7 Be2 Ne3 Bf1 Nc4 Rh2 Na5 e5+ Kc7 e6 Kd6 Ng8 Qd8 e7 Ra6 Nh6 Ba8 Ng4 Nb7 Ne3 Qa5+ Kc4 Qd2 Kb5 Qd1 Rh1 Rc1 Rh2 b1Q Rh1 Qb2 Rh2 Rb1 Rh1 Rg8 e8Q Rg5 Rh2 Rh1 Qg8 g1Q Rf2 g2 a3 Rh2 Rf5 Qh1 Qg7 g1N Rf6+ Ke7 Qh8 Re6 Qb8 Re4 Ka6 Ne2 Ka7 Ng3 Qf4 Nh5 d6+ Kf8 d5 Kg7 Ra2 Re8 Nd4 Qb5 Nef5+ Kh7 Qd3 Rf2 Re2 Rh2 Re7 Rhg2 Qff3 Ra2 Qc2 Rg6 Ne3 Kh6 Nef5+ Kg5 Qff2 Nh6 Rg7 Nf7 Qe1 Kf4 Qe7 Rg5 Qf8 Nb6 Nb3 Kf3 d7 Nbd8 d6 Nb7 d8R Nd7 Qc3+ Kf2 Nbd4 Na5 Qc4 Bf3 Qc1 Nb7 Ka8 Rab2 Qc3 Ra2 Qc2+
1rn3r1/3n2B1/1P2R1NK/P1rb1b1b/3p2NB/Q1Pn1nkr/2q3B1/Q6b b - - 0 1 legal: proof: b4 b5 c4 bxc4 f4 h5 g4 hxg4 a4 a5 b5 e5 Ra2 exf4 Nh3 c5 Qb3 c3 Qa3 c2 Qd3 c4 Rb2 Bb4 Ng1 Bc3 Rb4 axb4 Bb2 c1N Qd5 Bf6 Qd4 c3 Qd6 c2 Qd5 Bc3 dxc3 Nc6 Qd1 Nb8 Kd2 Ke7 h4 Kd6 e4 Ke5 b6 d5 h5 f5 a5 g5 h6 b3 h7 g3 Bc4 g2 Rh5 g4 Rg5 g3 Qh5 f3 Ke3 f2 Ba3 f1B Bd3 b2 Nd2 b1B Qd1 Bb7 Bc5 Ne7 Qe2 Nd7 Rg6 f4+ Kf3 Rb8 Kg4 f3 Kg5 f2 Rd6 Rg8+ Kh6 Kf4 h8B Nc8 Bb5 Nd3 e5 c1R Ngf3 g1N e6 g2 e7 Kg3 Nh4 Nf3 e8Q g1R Be3 Bg2 Bg5 f1B Ng6 Bh1 Qd1 Be2 Qf8 d4 Nc4 Qe7 Ba4 Bd5 Bc6 Qe4 Ne3 Rc2 Qc1 Rb2 Bb7 Rb5 Re6 Rc5 Bg7 Rg2 Ng4 Rh2+ Nh4 Rh3 Qb2 Rb5 Qfa3 Rc5 Qba1 Bd1 Ba8 Qe2 Bd8 Qc2 Be7 Be4 Bd8 Bf5 Bdf6 Ba2 Be4 Bd5 Bd8 Ng5 Bg2 Nf3 Nf2 Nfe1 Bdf6 Bh5 Ng4 Nf3 Ng6 Rc6 Bd8 Rc5 Bh4+
q1q1b1b1/Q1NrQb1P/n1P4Q/8/1n1Pbb2/1p1nNR1R/4B1K1/k3b1b1 b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 c5 g5 cxd4 g6 d3 e3 d2+ Ke2 hxg6 Nh3 g5 Ng1 g4 Ba3 d5 Bb2 b5 Nc3 d4 Nb1 f6 Ba3 b3 Bd6 Ra6 Be5 fxe5 Bg2 d3+ Kf1 Rf6 Bh3 Rf4 Kg2 Rd4 exd4 Qa5 Kg3 Bb7 Bf1 Bc8 Kg2 Qd8 a4 b2 f4 Kd7 c4 Kc6 h4 g5 a5 e4 a6 e5 f5 b4 c5 Kb5 a7 Kc4 a8Q e3 c6 e4 f6 b3 h5 e2 h6 e1N+ Kf2 g3+ Ke3 g4 f7 g2 Kf2 g3+ Ke3 Bd6 f8Q Ne7 h7 Be6 Rh6 Qc8 Qd8 Na6 Qf3 d1B Qf5 Bh5 Nc3 b1B Nge2 d2 Na4 d1B Ra2 Nd5+ Kd2 e3+ Kc1 Be4 Qf3 g1Q Ra1 g2 Rg6 Bf4 Nc5 Ndb4 Ng3+ Kc3 Qe7 Rd8 Nf5 Bg8 Rh6 Rd7 Qh3 Be8 Ne6 Bdh5 Nc7 Bhf7 Kd1 Kb2 Ke2 Ned3 Qb7 Qa8 Qa7 Rd6 Qh5 Qh2 Qg6 Qg3 Rh3 g1B Qh6 Qg6 Rd1 Qe6 Rc1 Qec8 Rc3 Ndc5 Ke1 e2 Rcf3 Rd7 Ne3 Ka1 Qhe6 Bgh2 Kf2 e1B+ Kg2 Ncd3 Be2 Bg1 Qh6
n2q4/k1N2Q2/BP3b2/p1b1nqR1/K3n1b1/3Qn2P/3R1PqB/nrB1n3 b - - 0 1 legal: proof: g4 f5 a4 h5 e4 fxe4 d4 b5 d5 bxa4 d6 a5 Nd2 Ra6 Nc4 cxd6 Qd4 d5 Ne3 Rf6 Qd1 Rf5 gxf5 d4 Ng4 hxg4 Kd2 g5 c4 d5 Kc2 Kd7 b4 Kc7 c5 Kb7 c6+ Ka7 c7 e5 b5 g3 f6 d3+ Kc3 a3 Kb3 g2 f7 e3 Bd2 e2 Qb1 e1B Qb2 g4 Qd4+ Bc5 f8B g3 Be2 a2 Qg4 e4 Bf1 e3 Be7 d4 Be2 Nd7 Qg7 Ngf6 Bd6 Nb6 Bb4 d2 Qg8 d1N Be7 d3 Bd6 d2 Ba3 Ne4 Qf7 Na8 Bg4 e2 Bc1 Ne3 Nh3 g1N Ng5 g2 Ka4 Nf3 Ne6 Ne5 Rg1 Rh3 Rb1 a1N Rb2 d1Q+ Rc2 Bd7 c8Q Qd5 Nc7 Bc3 Rd2 e1N Bf3 Bg4 Qcf5 Rg3 h3 Qe6 Q5h7 Qf5 Qhg6 Ng5 Bb7 Ne4 Ba6 Rf3 Rh1 g1Q Qgh7 Qg2 Rg1 Nd7 Bh2 Bf6 Qc4 Ne5 Qhf7 Nd5 Qf1 Rb3 Qe2 Ne3 Qd3 Qh1 Rg2 Rb1 Rg1 Bf3 Rg7 Qg2 Rg5 Bg4 b6+
B2K1n1Q/3Nn1P1/8/P1Qq1PbR/1p1B1nn1/qnr1Q2b/1n4qN/1k5b b - - 0 1 legal: proof: e4 g5 f4 c5 d4 cxd4 g4 f5 a4 a6 h4 Ra7 h5 Ra8 Ra3 fxe4 Rf3 b5 b4 a5 f5 axb4 Rf4 gxf4 g5 Ra5 Kf2 Ra6 Ke1 Rg6 hxg6 Bb7 Nf3 Ba6 Ng1 Bc8 Kf2 d5 c4 Kd7 a5 Kd6 g7 Ke5 g6 h5 c5 b3 c6 h4 c7 h3 Qh5 h2 Qh7 b4 Bh3 e3+ Kf3 b2 Kg4 Ke4 Kg5 Kd3 Ne2 Kc2 Re1 h1Q Qh4 e5+ Kg4 d3 Bd2 d4 Ng1 e2 Bc3 d2 Qg5 d1N Qh5 d3 Qh7 f3 Nd2 b1N Rf1 e1Q Ne2 f2 Qh4 e4 Rg1 f1B Qg3 e3 Qh4 Qg2+ Qg3 Nd7 Nf4 e2 Rh1 Bb7 c8Q Ne7 Kg5 Nb2 g8Q Bh6+ Kh5 Qc1 g7 e1N Qe3 Nf8 Qa7 Qdd5 Nf3 d2 Qe3 d1N Qcc5 Nf2 Nd3 Ng4 Nde5 Ned3 Nh2 Nd2 Nd7 Kb1 Bd4 Nb3 Qh7 Rg8 Qh8 Nf4+ Kh4 Qgc2 Bg2 Ba8 Be4 Bh3 Bd3 Bb7 Ba6 Bc6 Bb7 Qcg2 Ba8 Nh7 Rf1 Rc8 Rf3 Nf8 Rg3 Ne5 Rg5 Ng4 Rh5 Bb7 Qb6 Rc3 Qc5 Nfd3 Qe5 Bd2 Qe3 Nf4 Kg5 Na4 Rh7 Qa3 Rh5 Nb2 Qe6 Ne5+ Kf6 Ng4+ Kf7 N4g6 Ke8 Bg5 Qe3 Nf4 Kd8 Qg1 Ke8 Qe6 Qc7 Bh1 Qc5 Qg2 Kd8 Qg8 Qb6 Q8d5 Qc5
1R3Q2/1q1pBbP1/2n1qkrN/n1Qq3q/n3rq2/n1R2P1B/3P1n2/1RK5 b - - 0 1 legal: proof: e4 a5 b4 axb4 e5 g5 f3 g4 c3 bxc3 e6 g3 Bd3 fxe6 Ba6 e5 Bf1 e4 h4 Ra4 Na3 Nf6 Nc2 Ra6 Ke2 Ra3 Ne1 Ng8 Nd3 Nf6 Nf2 gxf2 g4 Bh6 g5 Ng8 g6 Bg5 hxg5 Ra8 a4 h5 a5 b5 a6 c5 a7 e5 g7 Ke7 g6 c4 Rh3 e3 Rb1 e4 Rh2 b4 Rg2 h4 Rg4 b3 Nh3 c2 Rg1 b2 Ra1 b1Q Rg3 c3 Ng5 h3 Qe1 h2 Nh7 h1N Ra6 Qe8 Ra4 Qb7 Ra5 Nf6 g8Q Nd5 g7 Nb6 Qd5 Na4 Rg6 Nc6 Nf6 Rh4 Rg2 Qh5 Bb2 c1N+ Kd1 e2+ Kc2 e3 Qb5 Re4 Rg1 Nb3 Bh3 f1Q Rg6 Nf2 Qb1 e1Q Rg2 e2 Ra6 Nba5 Ng4 Kf7 Nh6+ Kf6 Qa1 Qh1 Qb3 Qh2 Qaa3 Qf4 Bc1 Rb8 a8R Qd5 Kb1 c2+ Ka2 Qh1 Qc4 e1N Rg1 Qhh2 Qb4 Qh1 Ba3 c1Q Rb6 Nc2 Rf1 Qe1 Qf8+ Kg5 Bd6 Na3 Rb1 Qhh2 Bf5 Qh5 Bh3 Qe2 Rfc1 Qe1 Qh8 Kf6 Ka1 Qee3 Qc5 Qeb3 Rc3 Qe6 Ra6 Qbd5 Rab6 Ra8 R6b3 Ra6 Rb4 Qa8 Rb8 Bb7 Qe8 Rb6 Qh8 Ba6 Qe8 Bc4 Qc8 Ra6 Qg8 Qb7 Qe8 Nb6 Kb2 Na4+ Kc1 Qee5 Bf5 Qdf7 Ra8 Nb8 Bg4 Kg5 Bc7 Rg6 Qc8 Nbc6 Q8f8 Kf6 Bd6 Be6 Bh3 Qd5 Qh8 Qe7 Rb8 Bf7 Qf8 Qee6 Be7+
bq1r2Q1/Q1n1n2k/PrnN4/NN1rp2B/1n4R1/4rrPK/1Bq4P/2q5 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 a5 f5 axb4 e3 d5 f6 d3 Nh3 d2+ Ke2 d4 Kf3 d3 Kg3 gxf6 Kf3 f5 Kf2 f4 Ng1 Bg7 a4 h5 g3 h4 Ra2 Bd4 exd4 h3 Ra3 Qd5 Rc3 Qa5 Rc5 Qd8 Re5 Qa5 Re2 Qc7 Kf3 Qd6 Rg2 hxg2 Kf2 Qd8 c4 Kf8 d5 Kg7 c5 f5 a5 e5 c6 b5 c7 f3 d6 b3 d7 b4 Be2 b2 Nc3 b1N Qe1 d1R Bd2 b3 Na4 f4 Nb2 Ne7 Bc3 d2 Qf1 Kh7 Nc4 b2 Bb4 Na3 Nh3 b1R Kg1 Nbc6 Ne3 Bb7 c8Q Nc2 Ba3 N2b4 Qc7 Qb8 Nf2 Rd8 Nd5 Ra7 Bc1 Ba8 Bb2 Re1 a6 d1Q Nc3 Qc2 Bd1 Re3 Nfe4 Rb7 Qc8 Rb6 Qf2 Ra1 Nd6 Ra5 Be2 Rd5 Ncb5 Na2 Qf1 Nab4 Kf2 g1R Qb1 Rgd1 Re1 R1d3 Qb7 Rb3 Qa7 Ra3 Kg1 f2+ Kg2 f1N Kh3 f3 Qa2 f2 Bh5 Rf3 Re4 Ne3 Rg4 f1Q+ Kh4 Qfc1 Kh3 Rdd3 Qb3 N3d5 Qc4 Nc7 Qd5 Rh8 d8N Rab3 N8b7 Rd8 Qc4 Rd5 Na5 Rbe3 Qa2 Rc5 Qe6 Rd5 Qg8+
5r1r/nNq2P2/b1NpB1Q1/3K1nRP/1Nn5/4rr2/2r1rP1Q/k1B2n1r b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 e5 b4 a5 e3 axb4 g5 e4 Ra3 Bd6 Rc3 Bf4 exf4 h6 Rc6 hxg5 Rg6 g4 Re6+ fxe6 Kd2 Ke7 c4 Kd6 h4 Kc5 a5 g5 h5 b5 f5 e3+ Kd3 g3 Ke4 e2 f6 e1R+ Ne2 g2 a6 g1R f7 b3 a7 Kb4 c5 d6 c6 d3 c7 g4 Bf4 g3 Bh6 d2 Qc2 d1N Qa2 g2 Bg7 b2 Nc3 b1N Qd5 Ka3 Qe5 Kb2 Rh4 b4 Bf6 b3 Qh2 e5 Qf4 Na3 Na2 Nc6 Qd2+ Ka1 Qg5 b2 Rf4 b1R Rf3 Ne3 Nec1 Nge7 Qh4 Ba6 c8N Rb2 Qg4 Rc2 Rf5 Qc7 Bc4 Ree2 Rg5 Rh1 Nb4 g1R Be6 Nac4 Ncd3 Rg3 Nc5 Rf3 Nb7 N7f5 Ne7 Nf1+ Kd5 Raf8 a8Q Na7 Nec6 Ree3 Be7 e4 Qg3 Ree2 Qh2 e3 Bf6+ Rb2 Qe8 Rc2 Bd4 e2 Be3 e1R Bc1 Ree3 Qe7 Rce2 Qf6 Rc2 Qh6 Rce2 Qh7 Rbc2 Qg6
4qn2/1nnn1kn1/2KR1N1n/RQ3nPR/1QB1p2b/2rq3P/Pr5N/2n5 b - - 0 1 legal: proof: e4 c5 f4 a5 d4 cxd4 b4 axb4 f5 d3 f6 gxf6 Na3 f5 Nb1 f4 g4 h5 Bd2 d5 Be3 d4 Bf2 h4 Bg3 hxg3 Qe2 Be6 Qd1 Bd5 exd5 Bg7 Na3 Bh6 Nb1 Bf8 Kd2 f5 c4 b5 d6 e5 h3 g2 d7+ Kf7 c5 f3 c6 b3 c7 b2 c8Q f2 Ne2 g1N Qcc2 f4 Nc1 e4 Qe1 b4 Qc8 f3 Na3 b1N+ Kd1 d2 Kc2 d1N Kb3 d3 Kc4 d2 Kb5 b3 Nc2 b2 Nb3 Nbc3+ Kc4 b1Q Ne3 Be7 Bg2 f1N Qc6 f2 Qc8 Nh2 Qb7 f1N Qf2+ Nhf3 Qe2 Ra3 Qd3 Nh6 Qc6 Bh4 Kc5 Nd4 g5 Nge2 Qc4+ Nd5 Q6a6 Qd3 Qc1 Qe8 d8R Nf2 Ng4 d1N Nh2 Nc7 Qd2 Nfe3 Rc1 Nef5 Qb4 Nde3 Qab5 Ng7 Rhd1 Nef5 Bf1 Nde6+ Kb6 Rg8 Nc5 Nd7+ Kc6 Rc3 Ra8 Nef8 Ra5 Rh8 Rb1 Nc1 Be2 Qg3 Rd6 Nfd3 Rb3 Nb2 Rba3 Qd3 Ra7 Rg8 R3a5 Nc4 R7a6 Ng4 Rh6 Ncd6 Rh5 Nb7 Bf1 Ngh6 Rb6 Qg3 Bc4+ Nd5 Rba6 Qd3 Ne6 Nc7 Nf4+ Nfe6 Nd5 Nef8 Nf6+ Nfe6 Q4c5 Qf8 Qa3 Nbc5 Qb7 Qe7 Rb6 Rb8 Rbb5 Qe8 Qa6 Nb7 Re5 Nbd6 Red5 Rb2 Qb4 Nb7 Qab5 Nef8 Rd6+
4nR2/r1q1pB1R/1Q1k3B/1n1b3q/brPQ2q1/1P1B2Pb/3Kp1n1/1N2r3 b - - 0 1 legal: proof: a4 c5 f4 b5 e4 bxa4 d4 cxd4 Nd2 f5 Nc4 g6 Ne5 Bg7 Nd3 Be5 g4 fxe4 f5 Bg3+ hxg3 g5 Nf4 gxf4 c4 h5 f6 a5 g5 d5 g6 Kd7 f7 f3 f8Q f2+ Kd2 h4 g7 h3 Qff3 e3+ Ke2 h2 Qh5 d3+ Kf3 d2 Ke2 a3 Bh3+ Kd6 Qh6+ Nf6 g8B f1N Rb1 d4 Qb3 d1B+ Ke1 a4 Nf3 a2 Ng5 a1R Qa2 a3 Qf8 d3 Nh7 Nc6 Qe8 Nd4 Qa4 Nb5 Bhe6 Ra7 Bd2 Qc7 Bd5 Bh3 Bg2 Ne8 Qa5 Ba4 b3 e2 Bg5 Ne3 Q2d2 a2 Bf7 Rf8 Rf1 h1B Nf6 Rg8 Bc6 Bd5 Bh6 Rf8 Qb2 Ng2+ Kd2 Rh8 Rf2 Rg8 Rg1 Re1 Qb6 a1Q Rh1 Qa3 Q2d4 Qc5 Ng4 Rg6 Ne3 Rg5 Nd1 Rh5 Kc1 d2+ Kc2 Rf5 Nc3 Re5 Nb1 d1Q+ Kb2 Qd3 Rff1 Qe3 Kc2 Qf3 Kd2 Qh5 Rf4 Qc8 Rf2 Qcg4 Bd7+ Qc6 Bf5 Re6 Qa5 Qc7 Bd3 Kd7 Rf5 Rb6 Qa6 Rb8 Qab6 Rbb7 Rg5 Rb8 Rg8 Rbb7 Rf8 Rb8 Qa5 Kd6 Qab6+ Qc6 Qg1 Qhg6 Nc3 Nd4 Qb5 Qc7 Bg7 Rbb7 Qa5 Rb4 Nb1 Nb5 Qd4 Qh7 Rf1 Qh8 Rf4 Qgd7 Rh4 Qg4 Qab6+ Qc6 Rh5 Qh7 Rh4 Qhf5 Rh7 Qfh5 Qb7 Qc5 Bh6 Qc7 Qbb6+
Bn1b2qQ/1b3R2/N4kBQ/3p4/rr4p1/1r1RP1Pn/P1b2n1K/r4rQ1 b - - 0 1 legal: proof: d4 c5 c4 cxd4 b4 a5 f4 axb4 Bd2 e5 fxe5 b3 Na3 Qb6 Rc1 Qd8 g3 h5 Rc3 h4 Bc1 h3 Nc2 b2 Ne3 bxc1R Ng2 hxg2 Re3 Rb1 Rc3 Ra1 Kf2 Ke7 h4 d5 e3 b5 e6 f5 h5 g5 h6 d3 c5 g4 c6 b4 c7 f4 h7 b3 Ne2 g1N Kg2 f3+ Kh2 f2 Qe1 b2 Nf4 d2 Bb5 d1B Nd3 f1R Nb4 b1R Na6 Rb3 Rd3 Bc2 Bc6 Bb7 c8Q Kf6 e7 Nh3 e8B Be7 Bg6 Qf8 Qc7 Bd8 Qb6 Qf7 Nb4 Ra4 Na6 Nh6 Qf2+ Nf5 Qg1 Rg8 h8Q+ Qg7 Qa5 Nd6 Qb4 Ne4 Qf8+ Ke6 Qf4 Nef2 Qfh6 Kf6 Nc7 Ba6 Ba8 Bb7 Na6 Rf8 Qg2 Rfb1 Rf1 Rbb4 Qg1 R1b3 Rc1 Bd1 Rc7 Bc2 Q8h7 Qg8 Re7 Re8 Rg7 Ree4 Qh8 Red4 Rc3 Rdd1 Rd3 Rf1 Rf7+
1n3N2/1Bb2K1Q/p1qr3p/1Nr4P/3Q2b1/P1N2Pbb/1k2Rnr1/q2R2b1 b - - 0 1 legal: proof: e4 b5 b4 d5 c4 dxe4 g4 f5 Ke2 fxg4 Ba3 bxc4 Bb2 c5 bxc5 c3 Ke1 cxb2 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 h4 e5+ Kh5 g5 d3 a6 a3 e3 f3 e2 c6 e1B c7 h6 Kg6 g3 h5 g4 Qb3 e4 Qd1 e3 Qd2 g2 Be2 g3 Nh3 g1R Ng5 g2 Qa5 Bh3 c8Q Qd5 Qac7 Bd6 Q8d8 Qc6 Ra2 Bg3 Nf7 Nf6 Nc3 b1B Rc2 Rc1 Rd1 g1B Bf1 Bg4 Re2 Ne4 Bh3 Nf2 Qf6+ Bde5 Nd6 Rd8 Qh7 Ba2 Qfh8 Bae6 Q8g7 Bd7 Kf7 Ra7 Qf6 Rb7 Qfh8 Rb2 Ndb5+ Kc5 d4+ Kc4 d5 Kb3 Qb1 Bc7 Qbh7 Bc8 Qd4 Rd6 Na2 Rc5 Nac3 Rg6 d6 Re6 d7 Rd6 Red2 e2 d8N e1Q Re2 Rd2 Ne6 Kb2 Nf8 Rc2 Rdd2 Qa1 Rd3 Bgd7 Be6 Rd2 Bd5 Bh3 Be4 Rc2 Rd1 Bcg4 Ree1 Nh1 Bd5 Rg2 Re6 Nf2 Re8 Qb6 Bb7 Qc6 Re2+
Q5b1/1nk1PPr1/1Q3nR1/1Pq2rrB/3q2pb/p1R3rQ/K3br2/2N1B3 b - - 0 1 legal: proof: e4 e5 a4 c5 g4 h5 d4 exd4 e5 hxg4 Ra2 f5 Qe2 b5 Qe4 fxe4 axb5 Na6 Nd2 Nb8 Ndf3 d3 Nd4 cxd4 Ra3 Bc5 Ra1 Bf8 Ra6 g3 Kd1 g5 c4 d5 f4 Kd7 h4 g4 b4 d2 Kc2 d1B+ Kb1 g2 h5 d3 c5 d4 h6 e3 b6 e2 b5 e1Q b7 d2 f5 d3 h7 Be7 f6 Qf2 Rh5 Nc6 b8Q Na5 Ne2 g1R Rg5 Rg3 Qb6 Nb7 Ra3 a5 Qa7 a4 Nd4 Bf3 Be2 d1R Rc3 d2 Qb6 Rf1 f7 d1R Bd3 Be2 Bc2 Qc7 Nb3 Qd4 Bd3 Rf6 Rg7 Rdf1 Bg6 R1f2 Ka2 Kd8 Bd2 Bf5 e6 Be4 Qa5 Rc8 Qa8 a3 c6 Qcb6 Be1 Qbc5 Nc1 R6f3 Rb3 Bg5 Rd3 Nf6 Rc3 Rg8 h8Q Bc2 Qh3 Bh4 Bh5 Bh7 Rg5 Rf5 Rg7 Rb8 c7+ Kc8 e7 Kd7 Rg6 Rbd8 Rh6 Rgg5 Qa6 Rdg8 Rg6 Rg7 Qa5 Bg8 c8Q+ Kd6 Qca8 Kd7 Q5a6 Kc7 Qb6+
K1Qnq2R/1BPr1P2/nNkr1R1q/8/7p/q1b2Pr1/R1Qp1qb1/B5q1 b - - 0 1 illegal: No possible last move
4q2b/1p2R1P1/2b2nN1/rPbP1bN1/1N3bQR/1K4nn/2pk2BQ/5qr1 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 e4 Nc6 b3 Nb4 Bb2 Nxa2 Bd4 Ke7 Bb6 Ke8 Be3 fxe3 g4 Ke7 d4 Kf6 b4 Kg5 e5 Kf4 g5 c5 b5 a5 e6 h5 d6 f5 g6 h3 d7 h4 e7 e2 Kd2 e1B+ Kc2 Ke3 e8N h2 Ne2 h3 Nbc3 a4 Kb2 f4 Qb1 c4 Nc1 a3+ Kc2 f3 Ne4 c3 Nd2 f2 Ndb3 Ra5 Nc5 Bd2 Nf6 Qe8 d8Q Bf5+ N1d3 Nb4+ Kb3 c2 Qc8 a2 Ne1 Nd5 Qb2 Nf4 Nh5 Nf6 Nf3 Rg8 Na6 Bc5 Bg2 f1Q Nb4 Ke2 Rd1 a1B Ng5 Bc1 Re1+ Kd2 Re7 Rg7 Rg1 h1N Qd7 Ng3 Rh1 h2 Qe6 Nfe2 Nf4 Ng1 Qe4 Nh3 Qf3 Be4 Qg4 Bc6 d5 Rg8 Rg1 h1B Qe5 Bad4 Be4 Bf3 Rh1 Be2 Qc7 Bd3 Bg2 Bf5 Qb8 Ng1 Rh4 Nh3 Nfe6 Be5 Nf8 Bcb2 Qd6 Bf4 Qb8 Nd7 Qd6 Bh8 Qe5 Nf6 Qd6 Rg7 Qb8 Rh7 g7 Rh6 Qe5 Rg6 Qh5 Ne2 Bh1 Be4 Nf7 Bg5 Qh2 Bf4 Bf3 Rg4 Ng5 Bf5 Ng6 Rg1 Bg2 Ng3 Qg4
4R2r/6K1/Nq2r1PQ/1r2n3/pbB1pkPn/NPRb2n1/1q4Q1/3n2Qq b - - 0 1 legal: proof: d4 b5 g4 g5 e4 f5 a4 fxe4 f3 bxa4 Bg2 c5 Bf1 cxd4 Bf4 h5 Bg3 h4 f4 hxg3 fxg5 Rh4 Ra2 Rh6 Ra1 Rh8 Kd2 Kf7 h4 Kg6 c4 e5 c5 a5 c6 d5 b3 a3 c7 a2 Nh3 d3 Ke3 d2 Ng1 a4 Na3 d4+ Ke2 d3+ Ke3 g2 Rh3 Ra5 Qf3 d1Q Rh1 d2 Qg3 Nd7 Nh3 g1N Bc4 Ne7 Nf2 Nf3 Rc1 a1Q Qg2 Rb5 Re1 Ba6 c8Q Qb6+ Qc5 Qb2 Rc3 Qda1 Nd3 Nf5+ Ke2 e3 Nb4 d1N+ Kd3 e2 Ke4 Qac1 Qcg1 Bc5 Kd5 Bd6+ Ke6 Ng3 Nc6 Bb4 h5+ Kh7 Kf7 Nh4 g6+ Kh6 Nb8 Kg5 h6 Kf4 h7 Qcb1 Q1h1 Qe4 Kg7 Qeb1 Rg1 e1R Qhh2 Re3 Re1 Qe4 Qgg1 Qh1 Qhg2 e4 Rf1+ Rf3 Rf2 Ne5 Rfc2 Re8 h8Q Re6 Rd2 Re3 Rd8 Rd3 Rc8 Rd8 Qh5 Rh8 Re8 Bb7 Na6 Bd5 Bd3 Bc4 Bf1 Bd3 Qh7 Bb1 Bc4 Bd3 Qh6+
bn4NQ/1n1b1N1K/P2qP3/1k3pq1/3bQ1nQ/3B2qp/1r1Pr3/1qRB4 b - - 0 1 legal: proof: g4 a5 a4 d5 c4 g5 cxd5 e5 f4 exf4 b4 axb4 h4 h6 Ra3 Ra6 Rah3 Ra5 h5 Ra7 Rh4 Ra8 Bb2 gxh4 g5 Rh7 g6 Rh8 Bf6 Ra6 Be7 Ra8 Bg5 hxg5 Kf2 Kd7 Kf3 f5 e4 c5 h6 b5 g7 g4+ Kg2 h3+ Kf2 f3 Kg3 b3 Kf4 f2 d6 Kc6 h7 b4 e5 g3 d7 c4 a5 b2 a6 g2 Qe2 c3 Qh5 c2 Nf3 c1N Rg1 b3 Nh4 Bc5 Qe8 Bd4 Qf7 Nf6 Kg5 Ng4+ Kg6 Nd3 g8B Nc5 Rh1 g1Q Qe7 Qg3 Nf3 Nb7 Nc3 b1Q Nd5 b2 Ng5 Qbd3 Nf6 b1Q Bb3 Re8 h8Q Kb5 Ng8 Ra7 Be2 f1B Kh7 Bg2 Nf7 Bd5 Qh4 Qg5 d8Q Bd7 Qe7 B5c6 Bc2 Bg2 Bed1 Qa3 Rh2 Qd6 Bd3+ Kc5 Qh6 Nd8 Bf3 Rb7 Qh4 Rb2 Rh1 Kb4 Bfe2 Ba8 Rc1 Nb7 Bd1 Rc8 B3c2 Kb5 Qe6 Rc3 Be4 Re3 Bd3+ Kb6 Qd5 Re2 Qe4 Ka5 e6 Kb4 Rc4+ Kb5 Rc1+
nRr1b3/bP5q/1RrQ1K2/1nb3pN/Q2B3n/1P2p1q1/k2q1N1P/2n3N1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 f4 gxf4 g4 Ba6 g5 Bg7 g6 Nc6 Bh3 Nb8 Bf5 Bf8 g7 Bc8 Bg6+ hxg6 Kf2 Kf7 c4 Ke6 b6 d5 b7 a5 c5 e3+ Kf3 a4 Kg4 g5 c6 f3 c7 f2 Qf3 f1N Qg3 e2 Qe1 a3 Qa5 e1Q Nh3 d3 Nd2 d4 Qb4 Kd5+ Kf3 e5 Ra2 e4+ Kg2 e3 Kf3 Ne7 g8N Qd7 Qb6 Ra6 Qf6 Ng6 Qb6 Bc5 Rg1 Qh7 Qf6 Ng3 Ra1 a2 Rf1 Rc6 Nf2 Ne2 Rh1 Na6 Nh6 Bd7 c8Q Nc7 Qb8 Be8 Kg4 Na8 Kf5 Nh4+ Kg4 Ba7 Rb1 a1B Nf3 Kc4 Qbd6 Kb3 Rf1 d2 Ng8 d1Q Qff4 d3 Ng1 d2 Nf6 Ka2 Nh5 Qdc2 Qfd4 d1N Bd2 Qcd3 Bc3 Qdd2 Q4f4 Bc5 Bd4 Ndc3 Qe4 Nb5 Qc2 Ng6 Kf5 Nc1 Kf6 Nh4 Qa4+ Na3 Nh1 Qg3 Rf5 Ba7 Nf2 Rg8 Ra5 Bc5 Ra6 Ba7 b3 Bc3 Rb6 Bb4 Ba1 Bc5 Bd4 Ne2 Rf1 Nc1 Nd3 Bf7 Rf4 Rgc8 Nf2 Be8 Re4 Bf7 Re8 Bg6 Rd8 Be8 Qc4 Nb5 Qb4 R8c7 Rb8 Rc8 Qa4+
1K1b1N1n/1b2NR2/b1BN2rP/4QrP1/PQ2qp2/1k3p2/1bbn4/q1Bb4 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 Qb3 e6 Qg3 exf5 Qf3 f4 e4 gxf3 g4 h5 g5 Nd7 Na3 Nb8 Rb1 Nf6 Rb3 Ng8 Re3 Na6 Nc2 Qe7 a4 Qd8 Na3 Nb8 Re2 Nc6 Rg2 Nb8 Rg4 hxg4 Kf2 Ke7 h4 Kd6 d4 f5 h5 b5 h6 c5 Nc2 g3+ Ke1 g2 Kf2 b3 Ne1 b4 Nd3 b2 Ne2 g1Q+ Ke1 b1B Kd2 c4 Nb2 f2 Nc3 f3 Ke3 f4+ Kd2 b3 Bh3 f1B Bd7 Ra5 Bc6 Qe8 Rh2 Ba2 Re2 Ne7 Re1 Ng6 e5+ Kc7 e6 Kd6 e7 Bb7 Re5 Rg8 Rf5 Na6 Rf7 Qa8 e8Q Nh8 Qe2 Be7 Qe4 Nc5 Qe6+ Kc7 d6+ Kb6 d7 Bd8 d5 Rg6 d6 Qh1 Qe5 Ne4+ Kd1 Nd2 Nd5+ Kc5 Ne7+ Kb4 Ke1 c3 Nc4 Bc7 d8Q c2 d7 b2 Qb8 b1B d8N Kb3 Ne6 Bd8 Nf8 Qg1 Qbd6 Qd4 Qdc5 Qa1 Nd6 Bfa6 Qcd4 Rb5 Qb6 Kb4 Qbd4+ Bc4 Qdc5+ Kb3 Qb6 Be2 Qa5 Bd1 Qb4+ Ka2 Qe2 Qa7 Qe5 Nc4 Qe3 Rf5 Qe5 Q7d4 Qea5 Ne3 Qe5 Qc4 Kd2 Qe4 Bb2 c1B+ Kc3 Qc2+ Kd4 Qe4+ Kc5 Bbc2 Ba3 Nf1 Bb2 Bd2 Ba3 Bc3 Bc1 Bb2 Ne8 Rg8 Kd6 Nd2 Kd7 Rg7 Nd6 Rg6 Nd5 Be7 Kc7 Bf6 Kb8 Bd8 Qb6 Ka3 Ne7 Ka2 Qbc5 Kb3 Qb4+
1n2BR2/Kb2pn2/2B1P3/3bPp2/4q1QR/Nn3r2/1R1Pkrn1/1bnQb3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 e4 a5 b4 axb4 g4 h6 e5 Ra3 Bb2 Ra8 Bd4 Qd6 f5 Qe6 fxe6 g5 Nc3 Ra5 Be3 Ra8 Bf4 gxf4 Ne4 h5 g5 Bd7 Nf2 Bc8 Ng4 hxg4 Kf2 b5 a4 c5 h4 f5 g6 g3+ Ke2 b3 h5 b4 g7 b2 h6 b1B a5 b3 a6 b2 a7 c3 h7 g2 Qc1 c2 Kd3 c4+ Kd4 f3 Kc5 f2 Kb6 c3 Rh3 Bb7 Ba6 f1B Ra3 Kd8 Qe1 c1N Rf3 c2 Rfc3 Bc4 Ra2 Nh6 g8B Bg7 Bf7 Nb3 Qe4 c1N Rc2 Bf6 Bg6 Bcd5 Bh5 Bh4 Ra4 Be1 Qb4 Nf7 Nf3 g1N Qg4 Nh3 Nd4 Nf4 Bb5 Ng2 Bc6 Rg8 h8R Kc8 Kb5 Kc7 Bg6 Rg7 Rf8 Rh7 Rac4 Rh1 Rb4 Rf1 Rcc4 Rf2 Nc2 Ba2 Re4 b1Q Na3 Qc2 Rec4 Qe4 Rc2 Bb1 Rb2 Na6 Rc4 Rc8 a8Q Nb8 Qa7 Rd8 Qe3 Rc8 Qd3 Rd8 Ka4 Kb6 Rb4+ Kc5 Qc2+ Bc4 Bh5 Rd3 Bg6 Kd4 Bh5 Nc5+ Ka5 N5b3+ Kb6 Rg3 Ka7 Rgf3 Qd1 Kd3 Qc2+ Ke2 Ra4 Nh6 Bhe8 Bd5 Qg8 Qd3 Rh4 Qe4 Qg4 Nf7 Qd1+
3N3K/1bpn2PB/p5b1/1kN2qr1/b2r1Q1R/r3rPN1/1b2QP1n/B3b3 b - - 0 1 legal: proof: h4 f5 b4 d5 a4 g5 c4 dxc4 a5 gxh4 Nf3 f4 a6 bxa6 Ra3 a5 Ng1 a4 Rb3 f3 exf3 axb3 Ke2 Kd7 Ke3 Kc6 Ke4 e5 g4 h5 d4 b2 g5 c3 g6 c2 g7 h3 Bd3 h4 Bd2 c1R Be3 h2 Bf1 h3 Bc4 Qf6 Be2 Rc4 Na3 b1B+ Qc2 Bb7 Bf4 Rh5 Bd1 Rg5 Ne2 Nd7 Nb5 Nh6 Nbc3 Ng4 Ng3 a6 Qd3 Re8 Na4 Bc2 Nc5 Ba4 Qe2 Kb5+ Kd3 Bd6 d5 Re6 Bc2 Qf5+ Nce4 Bc5 d6 Bd4 Bd2 Bb2 Bc3 Qf8 Nc5 e4+ Kd2 e3+ Kd3 Ree4 Be5 Qf5 Bb1 Kb6 b5 Ka5 b6 Kb5 Ba2 Rb4 Bg8 Rbc4 Bh7 Rb4 Rc1 h1R Rc4 h2 Bd4 Ra1 Be5 Ndf6 d7 h1B d8N Nd7 Bf6 Nh2 Bd4 Bc8 b7 Bg2 b8Q+ Bb7 Bc3 Re7+ Kd4 Ra3 Qa8 Bc8 Qe4 Bb7 Qh4 Bf1 Qf4 Bc1 Ba1 Re6 Qd3 e2 Qde4 e1B Qee5 Bc8 Kd5 Bd3 Rd4 Bb2 Re4 Qh3 Rc4 Bf5 Qe2 Ree3 Re4+ Rc4 Rd4 Qh5 Re4 Bg6+ Ke6 Bb7 Ke7 Nb8 Kf8 Nd7+ Kg8 Qh3 Kh8 Qf5 Qd1 Rd4 Qe2+ Kb6 Qe5 Ka5 Rh4 Kb4 Qf4 Ka5 Nd3 Kb5 Nc5+
3RK2Q/3n1pb1/2rr3B/3bp2k/nN2QN1q/1rr3PP/bQ2BP2/1n4b1 b - - 0 1 illegal: No possible last move
q4Qr1/1n1R4/1Pk1nPPK/3qpR2/1n1Q1pqN/RN2rb2/B6n/4b1q1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 f4 gxh4 e4 f6 e5 fxe5 f5 Kf7 Bg5 Ke8 Bf4 exf4 Ke2 d5 Kf3 Kd7 Kg4 e5 Kh5 a5 b4 h3 g4 a4 c4 a3 g5 d3 g6 d2 b6 d4 b7 d3 f6 a2 b5 h2 b6 Nh6 c5 Nf5 Nf3 Na6 b8R Rg8 Qc2 d1N Bh3 d2 Qc1 Ne3 Ne1 d1Q+ Nf3 Nf1 Rg1 h1Q Qc2 Nc7 Qe4 Bb7 Nc3 Ra3 Ne2 Re3 Rg5 Qg1 Rb1 a1N Nh4 Nc2 Bg2 Nd6 Nf3 Ne6 Ra8 h6 Ra2 Qa8 Ned4 Bc6 Ra4 Nb7 Ra3 Bd5 c6+ Kd6 Kh4 h5 c7 Kd7 Rb5 Bb4 c8Q+ Kd6 Rf5 Be1+ Kh3 h4 Kg4 h3 Kh5 h2 Kh6 h1Q+ Nh4 Nb4 Qf8+ Kd7 Qd3 Bc6 Bd5 Nh2 Ba2 Qdg4 Nb3+ Bd5 Qe4 Kc6 Qd4 Be4 Rd5 Qhf3 Qd2 Qd1 Qd3 Bf3 Rd7 Qd2 Qe4+ Qd5 Qd4
QK3Nnr/1nPkPB2/3nNr2/p1r2Q2/6P1/2r2brq/R3p1r1/RR5r b - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 e5 gxh4 e6 dxe6 Qh5 e5 Qd1 e4 f4 e5 b5 e3 Ba3 e4 Bb4 cxb4 Bc4 Bd6 Bf1 Be5 fxe5 Qd5 Qe2 Qd7 Qd1 Qd8 Ke2 a5 d4 h5 g4 f5 c4 h3 d5 f4 d6 b3 c5 f3+ Ke1 b2 e6 f2+ Ke2 h2 b6 h4 b7 h3 e7 a3 c6 a2 Qd2 Nd7 b8R Nc5 Qc3 Bb7 Na3 b1N Qd4 Nd2 Qd5 Nc4 Rd1 a1R Nf3 Rc1 Ne5 Rc3 Rd2 Ra7 Rg1 h1R Nd7 Rh2 Qf5 Rg2 Ra2 h2 Nf8 h1R Nc2 Ra6 c7 Rc6 Nd4 R1h3 Rb2 Rhg3 Nde6 Ba8 R8b5 Nb7 Ra2 Rc5 Rb1 Qc8 Ng6 Kd7 Ngf8+ Kc6 d7 Ncd6 d8Q Qd7 Kd1 e2+ Kd2 e1R Bc4 Qe8 Rf1 Qh5 Rba1 Rb1 Qb8 Rb6 Rfb1 e3+ Ke2 Qh3 Bb3 R3c4 Kd3 Rc3+ Kd4 f1R Qd8 e2 Qc8 Nd8 Bc4 Bb7 Qa8 Rfg1 Nf4 Rh1 Bf7 Rc2 N4e6 R5c3 Ng6 Kd7 Ke5 Bf3 Kd4 Nc4 Kc5 Rc6+ Kb5 Rc5+ Ka6 Nd6 Ka7 N8b7 Kb8 Rd2 Qf6 Rdd5 Qf4 Rf5 Qe4 Rf6 Qc2 Rd1 Qf5 Rh1 Ngf8+
1RNnK3/2QBb1Qk/P2b1Prr/5P2/8/7p/bBb1pqb1/q2R1bbQ b - - 0 1 legal: proof: c4 g5 e4 d5 h4 gxh4 b4 dxc4 f4 a5 e5 axb4 f5 Bg7 Na3 Nd7 Nb5 Ndf6 exf6 Bh6 Nd4 Bf8 Ne6 fxe6 Ke2 Kf7 Ke3 b5 Ke4 c5 Ke5 h5 d4 h3 a4 h4 g4 h2 d5 c3 g5 h3 a5 b3 d6 b2 d7 b1B Qd5 b4 Bc4 c2 Ra4 b3 Ra1 b2 Be3 c1Q Qd2 Ba6 Ne2 Qb6 d8Q Rh6 Qe1 Bc2 Ba2 b1B Qf2 c4 Rg1 h1B Qg3 c3 Bc4 Ba2 Qb8 Bg2 Bf4 Qf2 Qf3 Rg6 Bb3 Nh6 Qd8 Kg8 Qfd5 Kh7 Nd4 Baf1 a6 Qb2 Re1 Qa1 Re3 Ra7 Nb5 Nf7+ Kd4 e5+ Kc5 e4 Kc6 e5 Qc7 Ra8 Kd7 Nd8 Ke8+ Be7 Na7 Rc8 Rg3 e3 Ba4 e4 Bd7 e2 Bc1 e1B Bb2 e3 Qdb7 Ra8 Nc8 e2 Rd3 Rb8 Rd1 Bd2 Qd5 Bf4 Qa8 Bfd6 Qab7 Rh6 g6+ Kh8 g7+ Kh7 Qbc6 Rb4 Q6b7 Rg4 Qf3 Rgg6 Qa8 Bf3 Rg4 B3g2 Rb4 Bd3 Qe4 c2 Rb8 c1B Qec6 Be3 Qc1 Bc2 Qb1 Rh5 g8Q+ Kh6 Qf8+ Kh7 Bc3 Rhh6 Qbb7 Qf4 Bb2 Bg1 Qa8 Bh1 Qg2 Qf2 Qh2 Bf3 Qh1 B3g2 Qg7+
4rQ1r/nn2Pr2/3N1k2/p1rB3n/4P1PK/3rRB1p/3q1QN1/4rqBb b - - 0 1 legal: proof: b4 b5 h4 g5 d4 gxh4 a4 bxa4 d5 c5 Ra3 c4 Rd3 cxd3 d6 Bh6 e4 Be3 fxe3 exd6 Rh3 d5 Rh1 d4 Kf2 Ke7 g4 d5 c4 a5 c5 h5 e5 f5 e6 h3 Kg3 h2 b5 f4+ Kh4 d2 c6 f3 c7 f2 b6 a3 b7 a2 Ba3+ Kf6 e7 a1N Qc2 d1Q Be2 f1R Ba6 d3 Bb2+ d4 Qc3 d2 Bc4 Nb3 Nh3 Nc6 b8Q Nc5 Be6 Nb7 Bc4 Na7 Rg1 h1R Rg2 Bf5 c8B Be4 Bd3 Qe2 Rg3 d1R Bf5 Rc1 Qd2 Rc5 Nc3 Rf3 Qc2 Re1 Nf4 Qf1 Bc4 d3 Bd5 d2 Ng2 d1R Qf2 Rd3 Bc1 Qd6 Nb5 Qd7 Qf4 Re8 Qb8 Rf4 Nd6 Bf3 Bfe4 Rf5 Nf4 Bh1 Ng2 Qd8 Bf3 Rf4 Kh3 h4 e4 Rf5 Be3 Rf4 Kh2 h3 Qc8 Kg7 Qf5 Nf6 Qc8 Nh5 Qf5 Qd7 Qf8+ Kg6 Qc2 Qc8 Bd1 Rb5 Bg1 Rf7 Re3 Qc3 Qf2 Rc5 Be2 Qd2 Bf3 Nf4 Kg3 Nh5+ Kh4 Kf6 Ba2 Rc4 Bb3 Rc5 Bd5
2nq4/3k2qn/K3n1P1/n1R1R3/QbB1pPQp/1bB5/1r1N2QP/n1b4b b - - 0 1 legal: proof: d4 c5 e4 f5 c4 fxe4 b4 a6 b5 axb5 Nh3 bxc4 Ng1 c3 f4 g5 Bd2 b5 Be3 g4 Bc1 c4 Nd2 Ra7 Ndf3 gxf3 Be2 Rc7 Bf1 Rc5 dxc5 Qc7 Ba3 Qa5 Bc1 Qd8 a4 e5 g4 h5 g5 d5 g6 c2 Kd2 b4 a5 d4 c6 e3+ Ke1 c3 a6 d3 c7 e2 a7 b3 a8Q b2 Nh3 b1N Qa6 h4 Qb5+ Nd7 Nf2 Nf6 Qa6 Nb6 Ra4 Nd2 Ra1 Bb4 Bg2 Ndc4 Ng4 d2+ Kf2 e1N Nh6 Bb7 c8Q Nd3+ Kf1 f2 Ke2 Na5 Qca8 Kd7 Ng4 Nc5 Re1 Nc8 Ne3 Nh7 Nf1 Ne6 Bb2 c1B Kd3 c2 Qg4 d1B Nd2 f1Q+ Re2 Qf2 Bc3 Qa7 Bf1 Bh1 Qag2 Rg8 Re4 Re8 Rc4 Rh8 Rc5 e4+ Ke3 Qac7 Bc4 Qe5 Ra2 Qg7 Qa8 Bca3 Re5 c1N Rc2 Ncb3 Qa6 Na1 Qb5+ Kd6 Qa4 Rf8 Rc1 Bb3 Rc2 Rf7 Rc1 Rb7 Rc2 Nc7 Kd4 Bc1 Bb2 Ba2 Bd5 Ba3 Rc5 Rb3 Bc3 Rb2 Bb3 Bb4 Bd5 Nb7 Bb3 Ne6+ Kc4 Na5+ Kb5 Kd7 Bc4 Bb3 Ka6+
Q1n3R1/q5NK/2Ppq2Q/b2rqr2/3Q1B1r/P3n1p1/1r2rq1P/4kB1N b - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 d4 cxd4 f5 b6 f6 exf6 Bg5 f5 Nd2 f4 Nb1 f5 Bh6 f3 Bc1 f4 a3 h5 Ra2 Ba6 Kd2 Bd3 Ke1 Bf5 gxf5 Ra5 Bh3 Ra7 Bf1 Ra8 Rb2 Qe7 Rb3 Qf6 Rc3 Qd8 Rc6 Bc5 Rg6 Bf8 Rg4 hxg4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 c4 g5 e3 d3 f6 f2 Kf5 g3 Kg6 g4 f7 b3 e4 Kd4 c5 g2 c6 d2 e5 Ke3 e6 g3 e7 b2 e8Q+ Ne7+ Kf6 b5 Qa4 f3 Qc2 b4 Nh3 g1Q Bd3 f1R Qc3 f2 Kg5 b3 Bf5+ Ke2 Bh7 d1R Qd3+ Ke1 Bg8 Qc7 Nf4 Na6 Qd5 Rh4 Qg2 Rd5+ Kf6 Nb4 Ne6 Nc8 Kg6 Qe5 Qf3 Nc2 Qf6 Ne3 Nd2 b1R Ne4 b2 Ng7 Bb4 f8Q d6 Be6 Bd2 Bh3 Ba5 Qh8 Rb8 Qh6 Ra1 Qeh8 b1Q Kh7 Ra2 Bg2 Qe6 Qd4 Re2 Qd8 Qb5 Bh3 Nd1 Bf4 Ne3 Bg2 Qc5 Bh3 Rbb2 Qe8 Na7 Qa8 Nc8 Bg2 Qa7 Bh3 Qg2 Rg1 Qf3 Rh1 Qh5 Bg2 Rg1 Bf1 Qhe5 Bh3 f1Q Bg2 Ne7 Nf2 Rb7 Bg5 Rb1 Qc5 Kd2 Bh3 Rb8 Qb6 Rf8 Bf4 Rf5 Qc5 Qg2 Qc4 Ra1 Rb1 Ra2 Rb8 Rb2 Qd4+ Ke1 Rg8 Nc8 Nh1 Qf2 Bf1
1kbbB1Nq/P1r1r3/nB4r1/3KR3/5Pq1/2P1Q2p/1pQbQ1r1/2R1b1b1 b - - 0 1 illegal: No possible last move
r2Qb1kB/QK1bN3/pb2N2r/R1q2nPp/4N3/q1qP3B/P1bq4/7r b - - 0 1 legal: proof: g4 b5 h4 g5 c4 bxc4 b4 d5 h5 Bh6 Na3 Bf8 Rb1 Nd7 Rb3 Ndf6 Rf3 d4 e3 dxe3 Rf4 gxf4 g5 Nd7 Ke2 Ne5 Ke1 Ng6 hxg6 f3 Qb3 exf2+ Kd1 Bg4 Kc2 Kd7 Qd3+ Ke8 Qe2 Bd7 Qd1 Bc8 Kc3 c5 b5 e5 g7 h5 b6 f5 b7 Kf7 b8Q a6 Qbb3 e4 Qe1 f4 Ne2 e3 Rg1 Rh6 Qc2 Bd7 Qed1 Ne7 g8N Nf5 Ng3 e2 Qb3 e1Q Bd3 f1B Be4 f2 Qg4 f3 Bc6 Bd3 Rh1 f1R Qd4 f2 Rh4 Rh1 Ne4 f1B Qb7 Bc2 Ne7 Be8 Ba4 Bh3 Bb2 Qb6 Qd8 Qa1 Nd5+ Kg8 d3 Bd6 Bd7 Bc7 Rf4 Qa7 Rf1 Bb6 Nb5 Qd1 Ba1 Qc1 Nd4 Qa3+ Kd2 Bg4 Ne6 Bh3 Ke2 c3 Kf3 c4 Qbb8 Qc7 Qa7 Qcc5 Rf2 Ba4 Rf1 c2 Bh8 c1Q Bc8 c3 Ne7+ Kf7 Re1 Qd2 Rb1 c2 Rb5 c1Q Ra5 Bc2 Bd7 Qcb4 Bc8 Qg1 Bd7 Qdc3 Kf4 Qd2+ Ke5 Qbc3+ Kd5 Qge3 Rc5 Qef2 Kc6 Bg4 Kb7 Bh3 Nc6 Kg8 Ra5 Qfc5 Ne7+ Kf7 Qc7 Ne3 Nf4 Bf5 Qd8 Bg4 Bf5 Kf8 Bg6 Bd7 Bf5 Kf7 Bg4 Nf5 Bh3 Kf8 Ne6+ Kf7 Ng6 Kg8 Ne7+
3b3b/1RpK3k/1Q2rBPr/P1RpP3/QNr2n2/rbb5/1q2B2q/R3q3 b - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e6 g6 fxg6 d5 g5 Qd3 g4 Qc2 Bc5 Qd1 Bf8 d6 g5 h3 g3 Nc3 Nc6 Nd5 exd5 h4 g4 Bh6 Nd4 Bd2 Ne6 Bc1 Ng5 hxg5 Qe7 Qd2 Qf6 Qd1 Qd8 Kd2 Kf7 Ke3 Kg6 Kd4 h5 Kc5 b5 Kc6 h4 f4 g2 a4 g3 e4 c3 f5+ Kh7 f6 c2 f7 b3 d7 h3 Qe2 h2 Qc4 b4 Qa6 b2 Bc4 b1R Bb2 c1R Qa5 b3 Be5 b2 Qc3 Qe7 d8R Bd7+ Kb7 Nf6 Ra3 Nh5 Qe3 Nf4 Bb5 Rc4 Qb6 Re1 Nf3 b1Q Ra1 g1B Re8 g2 Nd4 Qb2 Nc2 Bd4 Rb8 g1B Nb4 Bc3 Bf6 Bgd4 Rc1 Be8 Kc8 Re3 Rhf1 h1Q a5 Qhh2 Rfe1 Ra6 Rb7 Qe5 Rc2 Be7 f8Q Bd8 Ra1 Bh5 Rcc1 Bd1 Kd7 Bb3 Qfc5 Re8 Qcc6 Re6 Rc2 Rc5 Be2 Rc4 Qa4 Rg3 Bh8 Rh6 Bf6 Re3 Qbb5 Re6 Qb6 Qf5 Be7 Bh8 e5 Qe4 Bf6 Qeh1 Rd2 Qe1 Rd4 Rcc6 Rc4 Reh3 Rc5 Rd3 Rb5 Rc4 Rc5 Bc2 Rb8 Bd2 Rb5 Ra3 Rb7 Bb3 Rc5 Bc3 g6+
3b3N/p3n1KB/2r2RR1/N1P3Nq/4prPr/1rn4q/1Q1P1n2/Qqq4k b - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 h4 e5 b5 g5 f5 gxh4 Ba3 d5 e4 dxe4 Bb4 Be6 fxe6 cxb4 Kf2 Ke7 Ke3 Kf6 c4 Kf5 e7 h5 e8Q h3 b6 h4 g3 a3 b7 a2 c5 b3 Nf3 Kg4 Qe7 f5 Bd3 f4+ Ke2 e3 Ba6 e4 Qc7 b2 Qc8+ Qd7 Qc1 h2 Ng5 f3+ Ke1 e2 Kf2 e1R Nh7 Kh3 Qd1 Re3 Bd3 Nc6 b8N Nce7 Qb7 Nf6 Nc6 Nfd5 Rf1 h1Q Qb4 Kh2 Na3 b1Q Nb5 h3 Bc4 Rc8 Ng5 Rh4 Na5 Nc3 Qb2 Rc6 Bg8 Qc1 Rb1 a1Q Bh7 Qg4 Qe1 Qh5 g4 Qa2 Ra1 Qab1 Nd6 Bg7 Qd1 Bf6 Ndf7 Rd3 Nh8 Qg2+ Ke1 Qg3+ Rf2+ Kh1 Ra4 h2 Rb4 Ncd5 Rb6 Qh3 Ra6 Rb3 Rf1+ Kg2 Rb6 f2+ Ke2 h1N Ra6 Rg3 Qa4 Rb3 Qaa1 Qh2 Rb6 Nc3+ Ke3 Qh3+ Kf4 Kh2 Rb8 Kg2 Rg8 Kh2 Rg6 Kg2 Rg1+ Kh2 Rg3 f1R+ Rf3 Kg2 Qba2 Nf2 Q2b2 Ned5+ Kf5 Bd8 Ke5 Kh1 Rf8 Ne7 Rff6 Rc7 Ke6 Rc6+ Kf7 Nfd1 Kf8 Rf4 Kf7 Nf2 Kg7
4n3/kbQPb2r/1BRr2bP/B7/p7/Kn2rQ1p/B3n1bP/1Nnr1N2 b - - 0 1 illegal: No possible last move, all moves rejected
rBq1Qk1B/qB6/PrN2Pb1/bP5p/b3pn1K/p2r1q1n/2Q5/1R1N4 b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 h5 d5 cxd5 g6 Nf3 gxh5 Ng1 h4 b4 b6 a4 Bh3 Qb3 Be6 b5 Bg4 Qb4 axb4 a5 Bd7 a6 Bc8 Ra5 bxa5 d4 e5 g4 c5 f4 h5 Kf2 h3 Kg3 a4 d6 e3 d5 a3 f5 b3 f6 e2 g5 e1Q+ Kf3 h2 g6 b2 g7 c4 Nc3 b1B Kg2 e4 Be2 Nd7 Kh3 Ne5+ Bg4 Nh6 g8Q Ng6 Be6 Qe3+ Nf3 Ng4 Kg3 Qa7 Bd2 Nf2 Bh6 Bc2 Bg7 Nh3 Nd4 Ngf4 Nd1 c3 Kh4 Ba4 Nc6 c2 Rf1 Rh7 Bh8 h1Q Qg2 c1R Qc2 Rb7 Bg8 Be7 d7+ Kf8 d6 Rb6 Bd5 Qf3 Re1 Qe8 d8Q Bf5 d7 Bg6 Qb8 Bd6 d8B Bb4 Bc7 Ba5 Qc8 Rb1 Bb8 Rb3 Qd7 Qe6 Rg1 Rd3 Rf1 Kg8 Qe8+ Kh7 Nd8 Qae7 Nf2 Qa7 Bb7 Qc4 Rb1 Qc8 Qd7+ Kg8 Nc6 Kf8 Nd1 Qf1 Qe6 Qf3 Qe8+
n1b3b1/2rkpQBQ/5P1K/rp3br1/1Q4q1/nR1RN2p/2B2P1P/3q2n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 d4 f5 e5 g6 d5 f4 g3 f3 d6 Bh6 Nc3 Bf4 gxf4 cxd6 Nce2 dxe5 Bh3 e4 Kf1 fxe2+ Kg2 e3 Kf3 Kf7 Bf1 Kf8 Kg2 Ke8 Kh3 e1R Kh4 d5 Kg5 b5 c4 h5 a4 d4 a5 d3 a6 b3 f5 d2 a7 e2 c5 b2 c6 b1B f6 h4 c7 h3 Qa4 d1B Qd4 Na6 Ba3 Qd7 Qb6 Nh6 Bb2 Ng4 Qc5 Rg8 Qd5 Bf5 Nf3 Bb3 Ra3 Ne5 Nd2 Nc4 Kh6 g5 Bc1 g4 Qe4 Ba2 Rd3 Na3 Nc4 g3 Ne3 g2 Qb4 g1N Bg2 Bae6 Be4 Rg5 Rb3 Qd4 Bc2 Bg8 Bd2 Rc1 Rd3 Rb8 a8Q e1Q Qd5 Ra8 Qf7+ Kd7 Rb3 Qg4 Qh7 Nf3 Rg1 Qd1 Rg3 Ng1 Qf7 Nc5 Qh7 Ra5 Rd3+ Ke6 Rb3 Na6 Rf3 Bd7 c8Q Nc7 Qe8 Bc8 Qef7+ Kd7 Nd5 Na8 Rfd3 Qdf3 Ne3+ Qd5 Bd1 Rc5 Bc2 Rc7 Ng2 Ra6 Rdc3 Bg6 Kg7 Rh5 Bh6 Ra5 Ne3 Qdd1 Rd3+ Rd5 Kh8 Be4 Bf8 Bg6 Kg7 Be4+ Kh6 Bg6 Rdc3 Rg5 Bg7 Bf5 Rd3+
1nr2R2/P3qP1n/5rQ1/3p2P1/3Q1pbr/1b1K4/2NNpB1q/k1B1bq1N b - - 0 1 illegal: No possible last move
3bB1R1/PPr5/nKp1rQRq/1bPN1rn1/1R1p1r1n/1N2bQ2/1p6/3k4 b - - 0 1 legal: proof: b4 a5 h4 f5 e4 g5 a4 gxh4 b5 fxe4 d4 e5 Bd2 Ne7 Bb4 Ng8 dxe5 b6 Qd2 axb4 a5 b3 a6 Ba3 Qc3 Bf8 Qa5 bxa5 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 f4 Kg4 g3 d5+ Kd4 h5 c4 h3 e6 h2 c5 h4 b6 a4 f5 c6 a7 e3 f6 e2 f7 e1R e7 a3 e8Q h3 Qe7 a2 Qf6 Qd6 Qe7 Rh7 Qc7 Be7 f8R Nf6 Nd2 Ne4 Bc4 Bd8 Ne2 Qh6 Rg1 h1R Nf4 h2 Rf6 Ba6 b7 Ng5 Qe7 Bb5 Rb1 Na6 Rg6 Re6 Qf6 Rc7 Kc3 a1B+ Rb2 Rac8 Bd3 Rf7 Rg8 Rf8 Bg6 Rc7 Be8 Rff7 Rg2 Rf1 Rg6 h1N Rg8 Nb8 Kb4 Na6+ Ka5 d4 Nd5 Rf4 Rb1 Bb2 Kb6 Bc1 Rg6 Nf2 Rg1 Ne4 Rb2 Nd6 Rg2 Kh3 g4 Nf5 Rg8 Nh4 Rb1 Nh7 g5 Rf8 g6 Ng5 g7 b2 Ra1 Rf5 Nb3 Be3 Ra4 Rff7 Rb4 Rf4 Rf2 Kg4 Rg2+ Kf3 Rg4 Ke2 Rg1 Nh7 Rg6 Rf5 Rf8 Ke1 g8Q Ng5 Qh7 Rf4 Rfg8 Kd1 Qhh8 Rf8 Qf5 Rff7 Qh3 R7f5 Qf6 Rf1 Qg3 R1f4 Qf3+
5q2/bppRb1Pn/Nq1P1k1q/Qp2r3/Q1r3q1/B4BP1/1K1Q1nq1/3R4 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 g5 h3 gxf4 b5 e5 b6 axb6 Kf2 b5 Ke1 Bd7 Nc3 Bg4 Nd5 f3 Nf4 exf4 hxg4 Ra3 Nh3 Ra6 Ng1 Ra8 e4 Ke7 d4 h5 Kd2 f5 Kc2 f2 a4 h4 g3 h3 e5 f3 g5 f4 d5 h2 e6 c3 g6 Rh5 d6+ Kf6 g7 Na6 a5 Qc8 e7 Nc5 e8Q Nd3 a6 Re5 a7 Qg4 Qb8 Be7 Be2 f1Q Qe1 f2 Nh3 f3 Ng1 Qg2 Ba3 f1Q Ra2 f2 Nf3 Qfg1 Qd2 f1Q Ne1 Qb6 Bf3 Nf2 Kc1 c2 Kb2 Qfg1 Nd3 Q1f1 Rg1 h1Q Nc5 Qh6 Na6 c1B+ Kb3 Qe2 Rd1 Qef1 Qe8 Bb2 Qa5 Bc3 Re2 Bd4 Qc6 Re8 a8Q Rc5 Qa7 Rc4 Qd5 Bf8 Qe1 Kg6 Re6+ Nf6 Qc3 Nd3 Nb8 Qa6 Re7 Nh7 Rd7 Re5 Be2 Be7 Qb4 Qf8 Qa4 Kg5 Bf3 Nf2 Ka2 Bc5 Qd2+ Kf6 Kb2 Qa5 Qa6 Ba7 Qb6 Qa6 Qba5 Qb6 Na6
4kb1n/q2n2BK/b3P1nb/3qb1pp/1PpN1P2/rB5Q/B1r4N/2QR4 b - - 0 1 legal: proof: g4 b5 a4 d5 h4 g5 b4 f6 axb5 e5 c4 dxc4 d4 exd4 Ra3 Bf5 Rg3 gxh4 g5 Bd7 g6 Bc8 Rg5 fxg5 Kd2 h5 f4 c5 e4 a5 e5 h3 b6 d3 Ke3 h2 Ke4 c3 b7 d2 e6 a4 Kf5 a3 g7 a2 Kg6 a1B Ne2 c2 Bh3 Qe7 Bg4 Be5 Qe1 d1Q Bh3 Nd7 b8Q Qd5 Qd6 Ba6 Bf1 Nh6 g8B Nf7 Bb2 c1B Bh7 Beg7 Be5 Bb2 Qc1 Bh6 Bg7 Be5 Nd2 Rc8 Rg1 h1N Nf3 Ng3 Nh2 Nf5 Nd4 Ra8 Qb6 c4 Be2 Qec5 Qc6 Qa7 Rd1 Qb8 Qa4 Bb7 Qb1 Kd8 Qba1 Bfd6 Qc2 Ra2 Qab2 Re8 Qbb3 Bf8 Bd3 Rb2 Bg8 Ne7+ Kh7 Nh8 Bf7 Qa8 Bfg6 Qa3 Bge4 Neg6 Qd2 Ke7 Bb1 Ra8 Qh3 Ke8 Bec2 Ra5 Ba4 Rc2 Ba2 Qe3 B4b3 Ba6 Ndf3 Ra3 Qc1 Qa7 Nd4
3BK3/n5N1/q1pQ2p1/Nqn1Q1PN/p2R1P1r/1q3bbk/1q2P2r/4bR2 b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 d5 a4 dxc4 g5 f5 Kd2 b5 axb5 h5 Ke1 h4 Bg2 h3 Qc2 hxg2 Qe4+ Kf7 Qf3 Ke8 Qg4 fxg4 Kd2 Kf7 f4 Ke6 h4 Kf5 b4 a5 h5 g6 b6 d3 Kc3 c6 b7 a4 b5 g3 b6 Kg4 h6 d2 h7 d1Q Be3 Na6 b8N Ne7 b7 Nc5 Kb4 c3 Na3 c2 Rb1 c1Q Nf3 g1B Nc4 g2 Nd4 Bf2 Rf1 g1Q Na5 Qd5 Ne6 Kh3 Ng7 Bg4 Nd7 Bf3 b8Q Bg3 Qd6 Nc8 Nf6 Na7 Nfh5 Q1d3 Rb3 Qa6 Rd3 Qf5 Bd4 Qge3 Bf6 Qee6 Bd8 Qb1+ Kc3 Qeb3+ Kd4 Qc1 Rd2 Qfd3+ Ke5 Qdb5 Kf6 Qcb2+ Rd4 Rb8 Nc4 Be7+ Kf7 Bf6 Rd5 Bc3 Na5 Bce1 Ke7 Rg8 h8Q Ra8 Qh7 Rh8 Rd4 Rb8 Qg8 Rh7 Qe8 Ra8 Nf6 Rh4 Nfh5 Rb8 Kf8 Rb7 Qee5 Rc7 Ne8 Rh7 Neg7 Kg4 Nb7 Rh3 Ke8 Rh2 Nf6+ Kh3 Na5 Rh4 Nfh5
1Q4q1/5P2/1r2P3/B1q1Qr1B/rNP1K1n1/2r1pQp1/1n1bp3/2knb1RR b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 g5 fxe4 g6 c5 Bc4 hxg6 Ba6 g5 Bf1 g4 d3 e5 Ke2 d5 Nh3 c4 Ng1 e3 Nd2 e4 Nb3 cxb3 Bg2 Bf5 Kf1 Bh7 Bh3 e2+ Kg2 e3 Bb2 Qa5 Bc1 Be4+ dxe4 Qc5 Kg3 Qb6 Bf1 Qc7+ Kg2 Qd8 c4 Kd7 a4 Kd6 f4 Kc5 h4 g5 h5 b5 e5 b2 h6 b1Q e6 d4 a5 b3 a6 Kb4 a7 Kc3 f5 b4 h7 d3 f6 g3 Kf3 d2 f7 b2 Ra4 b3 Rh2 g4+ Kf4 g2 Nh3 g1B Ke5 g3 Kf4 Bf2 Qe1 Kc2 Ra6 d1N Kf5 Nc6 Rh1 Nb4 Ng1 Nd3 Ke4 Bb4 Kf3 Nf6 Ra1 Ng4 Nh3 Qg8 Nf4 Bd2 Ke4 Qa2 Rb1 Qa3 Bh3 Qc5 Qf1 Bfe1 Ra1 b1R Nd5 b2 Qf3 Rb8 a8Q Rb4 Qb8 Ra4 Ra3 Ra1 Nb4+ Kb1 Rc3 R1a3 Rc2 Rc3 Bg2 Qgf8 Bh3 Rg8 h8Q Rg5 Qhe5 Qg8 Rg1 Rf5 Bg2 Ka1 Bh3 b1R Ba3 Nh2 Bg4 N3b2 Bh5 Ng4 Rc1 Nd3 Nd5 Ka2 Rh1 Rb6 Bb4 N3b2 Ba5 Kb3 Ra1 Kc2 Ra3 Kc1 Nb4 Rc2 Rd3 Rc3 Rd8 Qg5 Rh8 Qg8 Rg1 Ra2 Bg6 Ra1 Rhh1 Ra4 Bh5
3n1qkr/3Qrpp1/1Rr2n1B/3q2b1/Pp1RBP1Q/2P5/n4b1r/1B1K3N b - - 0 1 legal: proof: g4 d5 d4 h5 b4 hxg4 h4 a5 h5 axb4 h6 c5 h7 cxd4 Na3 d3 Nb5 d4 Nd6+ exd6 Bb2 Nf6 Bc1 Rg8 h8Q Bf5 Qh7 Rh8 Qg8 Bh7 Qxh7 Nbd7 Qg8 Nb8 e4 b5 f4 g3 a4 b3 e5 b2 e6 b1N e7 g2 Nf3 g1B Nh4 d2+ Ke2 d5 Ng2 d3+ Kf3 b4 Ne1 d4 Qh7 Nc3 Bh3 Nc6 Rb1 Na2 Qh4 Ra7 Bf5 Bf2 Bb2 Qd6 Rg1 Nd8 Rg6 Rc7 Ba1 Rc6 Rb3 Qb8 Rc3 Qa8 Rc4 Qb8 Qc1 d1R Qd2 Rc1 Qd1 d2 Ke2 Rb1 Nd3 Rb2 Be4 Bg3 Nf2 d3+ Kf1 Qa8 Nh1 Bf2 Rd4 Qb8 Rg5 Qd6 Rb5 Qd5 Qdg4 Qd6 Rb6 d1R+ Kg2 d2 Kf3 Rg1 Ke2 Rg2 Qgh3 Rh2 Kd1 Rb3 Qf5 Re3 Qd5 Kd7 e8B+ Ke7 Bd7 Qb8 Bc8 Ke8 Bg6 Be7 Qd7+ Kf8 Be4 Kg8 Ba6 Qd6 Bad3 Qd5 Rc4 Re2 Be5 Qd6 c3 Re3 Bb1 Qb8 Kc2 d1Q+ Kb2 Nh7 Bg6 Nb7 Bf6 Qf8 Bg5 Qd5 Kc2 Nd8 Bh6 Bg5 Rd4 Re7 Be4 Nf6 Kd1
Bk2b2n/4pR1q/4r2P/Pn2Q2n/q3pr1R/1r1N2N1/pP1n4/2K1b1RQ b - - 0 1 legal: proof: e4 h5 d4 c5 g4 hxg4 a4 cxd4 e5 b5 e6 fxe6 Be3 e5 Bf4 e4 Bd6 a6 Ba3 b4 Bxa6 bxa3 Be2 Kf7 Bf1 Ke8 Kd2 d5 h4 Kd7 c4 Kc7 f4 g5 c5 d3 f5 g3 a5 a2 h5 d4 c6 g4 h6 g2 f6 g3 f7 Bg7 f8Q Nd7 Nf3 g1N Nh4 g2 Rh2 Ne5 Rh1 Ra6 Nf5 Nf6 Qe1 Ng6 Nd6 Bd7 Qe3 Be8 Nc8 Nh5 Kd1 d2 Qe1 Nf3 Qf7 g1R Na3 Rg3 Nc4 Kb8 Qd5 Rf8 N8d6 Nh8 Rh4 Rf4 Qe5 Rh3 Kc2 d1N Kc1 d3 Nf5+ Qd6 Ng3 Nc3 Be2 Nd2 Qh1 Nb5 Bg4 Bf6 Bc8 Rb6 Bb7 Bg5 Qg7 Qg6 Ba8 Qh7 Ne5 Ra6 Rg4 Bh4 c7+ Ka7 c8R Re6 Rc2 Kb8 Qf6 Nc4 Rf2 Nd2 Nf5 Rhf3 Rf1 Be1 Rh4 Nb1 Ng3 d2+ Kd1 Rc3 Nd3 Rb3 Qg5 Rg4 Rf7 Rf4 Ke2 d1Q+ Ke3 Ka7 Qe5 Nd2 Rb1 Qc2 Ke2 Qc4 Kd1 Qa4 Kc2 Bf2 Rg1 Be1 Qf5 Kb8 Kc1 Rf1 Qd5 Rf4 Qe5+
q3R3/p1RB4/n1q5/krqQ3r/P1P1bnP1/4b3/RrpBpN2/4KQq1 b - - 0 1 legal: proof: b3 c5 Ba3 d5 Bc1 c4 bxc4 Bg4 Ba3 Bd7 Bc1 Bc8 e4 f5 c3 fxe4 Nh3 d4 Ng1 dxc3 f4 g5 Na3 gxf4 Nc2 h6 Ne3 h5 g4 h4 Nf5 Bh6 Ng3 hxg3 Ke2 Bg7 Ke1 Bf8 d4 Kd7 a4 Kc6 h4 Kb6 h5 e5 d5 e3 h6 c2 d6 g2 d7 e2 h7 e4 Ra2 f3 Bd2 Nf6 Rh6 Bc5 Rh3 Nd5 Qc1 Be3 Qa3 Nf4 Rg3 Na6 Qf8 Rb8 Bc1 Ka5 Qa3 b5 Qe7 b4 Qf7 b3 Ba3 b2 Rh3 b1R+ Bc1 R1b5 Qf6 Bb7 Rb2 Qe7 d8R Qc5 Ra2 Bc6 Rh5 Rb2 Nh3 g1Q Rd7 R8b5 Re5 Bd4 Re8 f2+ Kd2 Ng6 Ra1 e3+ Kd3 e1Q Rc7 e2 Bg2 Qh1 Ra2 Bb7 Bc6 f1Q Bd7 Qfg2 Qg5 Ba8 Nf2 Be3 Qh5 Qb7 Qh3 Qeg1 Qf1 Nf4+ Kc3 Rf8 h8Q Rf5 Qg8 Qh6 Qf7 Rh5 Qg8 Qb8 Qe6 Be4 Qd5 Bd4+ Kd2 Qa8 Ke1 Be3 Rec8 Qe6 Re8 Qec6 Bd2+
2Q4b/pBpN1P1r/nn1R1P2/4b1k1/1N5r/3r1R1N/Pr1p1q2/r1r2Q1K b - - 0 1 legal: proof: h4 g5 c4 gxh4 d4 f6 Bf4 b6 c5 bxc5 Be5 cxd4 f3 Bb7 f4 Bf3 exf3 fxe5 Rh2 d3 Rh3 Nf6 Rh1 Ng8 Kf2 Kf7 b4 Kf6 g4 d5 Kg2 h5 f5 h3+ Kh2 h4 f4 d2 b5 e4 b6 e5 b7 d4 Be2 d3 Na3 e3 Bf3 e2 Nb5 e1B Qb1 d1R Qc1 e4 Qc2 e3 Qb3 e2 Qa3 Ne7 Nd4 Bc3 Qc5 e1R Nge2 Nd5 Nc2 Na6 b8N Bd6 Qg1 Rh7 Nb4 Nb6 Bb7 Qf8 Qf1 d2 Rb1 Rc1 Ng1 Re3 Rb3 Rd3 g5+ Kf7 f6 Kg6 f7 Bh8 Nd7 Rb8 Nf3 Kh5 Kg1 h2+ Kg2 Ra1 f5 Bg3 Rg1 h1R g6 Bh2 f6 Qc5 g7 Kh6 g8Q Qf2+ Kh3 Rc1 Rg5 Rg1 Rd5 Ra1 Qe2 Rgc1 Rd6 Kh5 Qc8 Kg6 Kg4 h3 Qf1 Kh6 Kf5 Kh5 Ke4 Kg4 Ng1 Kg5 Qe1 Bf4 Rc3 h2 Qf1 h1R Rb3 R1h4 Rc3 Rd5 Rf3 Bh2+ Rf4 Qc5 Kf3 Rd3+ Kg2 Qf2+ Kh1 Nc4 Be4 Rb5 Bb7 Nb6 Nc6 Rbb3 Rf3 Rb2 Nb4 Be5+ Nh3+
3Q1r1n/nNr1rBn1/1Bb3N1/R3Pq2/Q3b1pr/6B1/pPPp1n2/2k3K1 b - - 0 1 legal: proof: f4 b5 d4 c5 a4 bxa4 f5 cxd4 f6 exf6 g3 f5 Ra2 f4 Kd2 f3 Ra1 f2 Ra3 f5 Bh3 h5 Ra1 f4 Bf1 Bd6 Ra3 Bc7 Re3+ Be5 Re4 f3 Rg4 Bf4+ gxf4 hxg4 h4 Ke7 e4 Kf6 e5+ Kf5 h5 Ke4 f5 d5 h6 g5 f6 a5 f7 a3 f8B g3 h7 d3 Bh6 g2 Rh5 a4 Bf8 a2 Bd6 a1R Be7 a3 Nh3 g1R Bb4 d4 Bc5 Qd7 Bd6 Qf5 Bf8 Ne7 Nf4 Ng6 Be7 Bb7 Bh3 f1B Ke1 f2+ Kd2 Nc6 Ng2 Na7 Bd8 Bc6 Bb6 Raf8 Nh4 Bg2 Bd8 f1N+ Ke1 d2+ Ke2 Ne3 Rh6 g4 Bb6 Rf1 Nc3+ Kf4 Nb5 Bge4 Qe1 d1N Nd6 Nf2 Bg2 a2 Bd2 Rd1 Nb7 Rf7 Bc1 Rc7 Qa5 Rf8 h8Q Rh1 Qg8 Nh8 Qa4 Re7 Re6 Rd3 Bd2 Rc3 Be1 Rh3 Rd6 Rc4 Rd5 d3+ Kd2 Rh1 Ra5 Rc5 Bf1 Rc4 Ng6+ Kf3 Qd5 Rh4 Qd8 Rc5 Kc1 Rc3 Bg2+ Ke2 Bh1 Be8 Bg2 Rcc7 Bh1 B8c6 Bg2 Nh1 Bg3 Nf2 Bh1 Qf7 Bg2 Nf5 Bh1 Ng7 Bf3+ Kf1 Kd2 Qf5 Ke3 Ke1 Be2 d2 Bc4 Kd1 Bf7 Kc1 Ke2 Nh5 Kf1 Ng7 Kg1
2Q1q3/1p1NN3/1NnK2p1/1rB4n/n1P2P2/b1bP1b2/p1r2RQ1/2b1k1Bn b - - 0 1 illegal: No proof kernel
K4RN1/1Q1pP2r/p2B1qpr/3rP2b/3rn1qP/Nq5k/Q1R5/2R1n1r1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 e4 bxa4 g4 h5 e5 hxg4 Bc4 e6 Ba2 d3 Bd5 exd5 e6 d4 Kf1 Bd6 Ke1 Be5 fxe5 Bb7 Bf4 Ba6 Bc1 Bc8 Kf2 Ke7 h4 f5 b4 f4 c4 f3 c5 a6 b5 g3+ Ke1 a3 Kd2 f2 b6 f1R c6 a2 b7 g2 c7 g6 Qe2 Rf4 Qf2 Nf6 Ne2 g1Q Nec3 Nc6 b8R Rh6 Qe2 Qg4 Qf3 Ne4+ Kd1 d2 Ke2 d1R Ba3+ Nb4 Rf1 d3+ Ke3 d2 Kd4 Bb7 c8Q Qh8 Qe3 Qf6 Rf2 Rg1 Rg2 d1Q+ Qd2 Qb3 Qe2 Bd5 Qb7 Bc4 Qc2 Be2 Rf8 Rc8 Qb2 Rc5 Rh2 Nd3 Rg2 Bf3 Rc2 Ne1 Bb4 Rf5 Na3 Rfh5 Rac1 a1R Qa2 Rh7 Qc7 R5h6 Qb7 Nd6+ Ne4 Rc4+ Kd5 Rd4+ Kc5 Rd5+ Kb6 Bd1 Nc5 Ne4 Ka7 Be2 Rc3 Bf3 R1c2 Rad1 Ka8 R1d4 Rc1 Qgf4 R3c2 Bh5 Ba5 Qg4 Bc7 Qg7 Rff2 Qf6 Bd6+ Ke8 e7 Kf7 Nd3 Ke6 Nf4+ Kf5 Rf1 Qd1 Rff2 Kg4 Rf3 Rc5 Nd5 Rb5 Rf4+ Kh3 Rff2 Qg4 Rf5 Qg7 Nf6 Rbd5 Ng8 Qh8 Rf7 Qf6 Rf8
2rq3N/3Pbb1p/1Nr1qP1P/1rp1q1b1/1B1RQq2/R1p4n/1Q6/K3N2k b - - 0 1 legal: proof: g4 d5 c4 f5 e4 d4 f4 fxe4 b4 a6 Be2 d3 Kf2 dxe2 b5 axb5 f5 bxc4 g5 c3 Ba3 Nd7 Bc1 Ndf6 gxf6 Ra7 Nf3 Ra3 Ng1 Ra8 Bb2 Kd7 Ke1 Kc6 d4 Kd5 a4 b5 h4 e5 f7 c5 a5 g5 a6 g4 a7 b4 f6 g3 h5 g2 h6 b3 Ra5 Qe7 Rh4 Be6 Nh3 g1B Ra4 Be3 Rh5 Bg5 Bc1 b2 Na3 b1R Qd2 Rb5 Kf2 e1Q+ Kg2 e3 Kf3 e2 Nf2 Qf1 Rh4 e1Q Nc4 Qd6 Bb2 Ne7 Ba3 Ng6 Qb2 Be7 f8N Nf4 Ng6 Rhc8 Nh8 Bf7 Ra5 Qd1+ Ke3 e4 Nd3 Qe6 Ra6 Rc6 Nb6+ Kd6 d5 Rac8 Ra4 Nh3+ Rf4 Qdg4 Ra5 Qd7 Ra4 Qd8 Ra5 Qe6 a8Q R6c7 Ra6 Qc1+ Ke2 e3 Bb4 Qd2+ Kf3 e2 Rd4 e1Q Ra3 Q1e5 Ne1 Qeh2 Qc6+ Ke5 d6 Kf5 d7 Qhe5 Re4 Qc1 Ke2 Qcf4 Kd1 Kg4 Kc2 Kg3 Rd4 Kh2 Qe4 Rc6 Kb1+ Kg1 Qf5 Kh1 Ka1 Qc4 Qfb1 Qce6 Qe4+
n3K1B1/p3n1Rb/6PP/N1n1nQB1/3nRp1p/2R1n1rr/1rP3q1/2kQ4 b - - 0 1 illegal: No proof kernel
3b3b/Q2nN1QN/1R1r2B1/2N1b2P/bK3p1p/pP1qqkb1/1n1P1B2/3b4 b - - 0 1 illegal: No proof kernel
Q2Q4/kNnn4/2bPrqqb/5R2/2rR1NPB/2pp2Pq/r2pp3/1K4R1 b - - 0 1 illegal: No proof kernel
3Q1Qq1/3pb3/2R1r3/PN2pbkP/pQq1rp2/3nP2b/4Nr1n/1BR4K b - - 0 1 legal: proof: f4 a5 g4 c5 d4 cxd4 Bd2 g5 Bc1 a4 fxg5 h5 Be3 hxg4 Bf4 Nf6 Bc1 Ng8 b3 b5 Qd3 Qb6 Qc4 Qd8 Bb2 a3 Qc6 axb2 a4 Rh6 a5 Rh7 Qc4 Rh8 Qa4 bxa4 Kf2 e5 Kg2 Ke7 c4 f5 h4 f4 b4 d3 c5 g3 b5 d2 c6 d1Q b6 Ba6 c7 Qd4 c8Q Nf6 g6 Qc4 b7 Ng4 g7 Kf6 g8Q Nc6 b8Q Nh2 Qg4 Nb4 Qc5 Nd3 Nc3 b1B Qb7 Be7 Qbb4 Qdg8 Nb5 Re8 Qh5 Bc2 Rc1 Bb7+ Qf3 Be4 Qc7 Bf5 Qd8 Bg4 Qfa8 Rh6 Nf3 Bh3+ Kg1 g2 h5 Rg6 Nfd4 Kg5 e3 Rd6 Ne2 Rd4 Qab8 Re4 Q8d6 Bf6 Qf8 Re6 Rd1 Be7 Rd2 Nb2 Rd6 Bd3 Rc6 Bb1 Kf2 g1R Bg2 Rd1 Re1 Rdd4 Kg1 Rd2 Rc1 Nd3 Kh1 Bc2 Nec3 Rf2 Bf3 Bf5 Bd1 Bb3 Bc2 Bh3 Bb1 Bd1 Rc7 Bdg4 Rc6 Bf5 Ne2
2Rb2NB/1Qbn1Q1q/3b1pPn/P2pp1r1/kP2Rpr1/6nn/Q7/4KB2 b - - 0 1 illegal: No proof kernel
1r3b2/PN2k2r/K1pP4/b7/1q3BQ1/1p1R1Qb1/1P1rpQRp/1nn3rB b - - 0 1 legal: proof: e4 a5 c4 d5 h4 dxe4 c5 g5 c6 gxh4 Na3 bxc6 Qf3 c5 Qd1 c4 f3 e5 Nh3 e3 Nc2 e4 Nb4 axb4 Ng1 Bd7 Qc2 Be6 Kd1 Bd5 Qb3 e2+ Kc2 e3 Qa4+ Nc6 Qb3 Be4+ fxe4 Be7 Kb1 Bd6 Qd1 Bf8 Kc2 Nb8 d4 e1B a4 f5 g4 h5 g5 c6 g6 h3 e5 e2 e6 f4 d5 c3 Kb3 f3 Kc4 b3 g7 c2 e7 f2 a5 h4 a6 h2 a7 h3 Qd3 Qd6 Bh6 c1B Bf4 Rh7 Bg2 f1R Qf3 Bcd2 Rd1 Ba5 Rd3 Nf6 g8Q Na6 Qgg4 Bg3 Qf2 Ra1 Nf3 Rg1 Ne5 Rb8 Nf7 Ne4 Nd8 Nac5 Nb7 Nc3 Bf3 Rd1 Rg1 h1R Rg2 h2 Be4 Kf7 e8Q+ Kf6 Qeg6+ Ke7 Qgf3 Nb1 Qgg4 Rhg1 Kd4 Rd2 Kc4 Bc7 Kb4 Bd8 Re3 Nd3+ Ka4 Nc1 Rd3 Qh6 Kb4 Ba5+ Kc5 Bb4+ Kb6 Qd6 Ka6 Ba5 Q3e3 Rh1 Rg1 Bh4 Rg3 Rg1 Bh1+ Kf7 Qff3 Qb4 Rg2 Bg3 Qef2 Ke7 d6+
2q2b1N/n1n2qpr/N3k2b/1pP1rRp1/B7/2KR1R1P/4QpnP/2Q4n b - - 0 1 illegal: No proof kernel
Bn2r3/b3q1p1/2R3np/1b2kp2/1P1p2rP/R1P2Q1q/N1n2B1n/2K2Q1R b - - 0 1 legal: proof: a3 b5 Nc3 c5 Nb1 b4 axb4 Bb7 Ra5 Ba6 Ra1 Bc8 d4 e5 b3 exd4 Ra3 c4 Ra1 cxb3 g4 Ba6 f4 Nc6 f5 Nb8 g5 Bc8 g6 fxg6 f6 Bd6 Na3 Qb6 Nc4 Bf8 Ne3 Qd8 Nf5 gxf5 Kd2 Kf7 e4 Ke6 f7 d5 e5 a5 c3 d3 h3 d4 Qe2 b2 Qf2 b1Q Qf4 a4 Qg5 a3 Qe3 a2 Nf3 Qe7 Bg2 Ba6 Qf4 Bb5 Ng1 h6 h4 Ra6 Kd1 d2 Qf3 Qd3 Ne2 Rb6 Qf1 Qh3 Ba8 Rd6 Kc2 d1N Be3 Nf2 Nc1 Ng4 Bf2 Nh2 Kd2 Rc6 Kd1 Kd5 e6 Ke5 Kd2 Qg5+ Kd1 Bc5 f8R Ne7 Rc8 Ng6 e7 Ba7 e8Q+ Qe7 Rc7 Rd6 Qc6 Re8 Qf3 Rf6 Rc6 Re6 Rb1 a1N Na2 Nc2 Kc1 Nf4 Ra1 Rg6 Rb1 Rg4 Rb3 Ng6 Ra3
1KRr2n1/2B2N2/2P1Rp2/2n4b/1np1Q1PR/PbN3p1/bq2pb2/2k1bQ2 b - - 0 1 illegal: No proof kernel
2N1b1QB/2n1p3/b2r2p1/P4P1n/1q1bB2p/2Qp3K/1bb1PR2/N3N1kn b - - 0 1 legal: proof: b4 a5 h4 axb4 d4 c5 g4 cxd4 a4 b5 h5 f5 Ra3 bxa3 h6 Ra6 Rh2 Rf6 Rh1 Rf7 Nh3 g6 Ng1 Rg7 hxg7 fxg4 f4 Kf7 Kf2 Ke6 Kg2 Kd5 c4+ Ke4 f5 h5 a5 d5 c5 b4 c6 d3 c7 h4 Rh3 a2 Na3 a1B Qa4 d2 Nf3 Ke3 Nd4+ g3 Nab5 b3 Na3 b2 Ne6 b1B Nc5 d4 Ne4 d3 Qc4 Bc2 Qd5 Bd4 Qc4 Na6 Qa4 Qd6 Nb5 Nf6 g8Q Bg7 Qaa2 Qb4 Nc5 Nh5 Qgb3 Rd8 Bb2 d1B Rh2 Rd6 Kh3 g2 Qc3 Kf2 Nb3 Kg1 Na3 Bb7 c8N Nc7 Na1 Ba6 Qd5 Ba4 Qf7 Be8 N3c2 Bgf6 Ne1 Bc2 Bc1 Bg7 Bh6 Bgf6 Bg7 Bfe5 Bh8 Bg7 Qcc4 Bb2 Qfe6 Bgd4 Qc3 Kf2 Rh1 g1N+ Kh2 Qb8 Bg2 Nh3 Be4 Qb7 Rg1 Qb4 Rg2+ Kf1 Qec4 Nf2 Qg8 Nh1 Kh3 Ng7 Rh2 Kg1 Rf2 Nh5 Bb7 Bc4 Bc6 Ba6 Be4
K3bqQ1/3b3p/1RpQp1nR/Q3PknP/7p/5b1N/4qP1B/bN1q2r1 b - - 0 1 legal: proof: c4 a5 g4 g5 e4 f5 b4 axb4 h4 d5 e5 dxc4 Bg2 b5 Be4 Ra6 Bb7 Rh6 Be4 Rh5 gxh5 gxh4 Qb3 fxe4 Qf3 Bh3 Qd1 Bc8 Ke2 Kd7 Ke3 Ke6 a4 c3 d4 c6 d5+ Kf5 Kd4 e3 Kc5 b3 d6 b2 d7 e2 a5 e1Q a6 c2 a7 b4 a8Q b3 Nd2 b1B Ra7 e6+ Kc4 b2 Nh3 Bb4 Ng1 Na6 Nf1 Ne7 Qd5 Bc3 Bf4 c1Q Nh3 Be4 Qd6 b1B Rb7 Rg8 Bh2 Qcd1 Nd2 Rg1 Rb6 Qf8 d8Q Nc5 Qa5 Bf3 Qe8 Bbe4 Nb1 Bd7 Qeb8 Ba1 Qba8 Rg5 Rg1 Qee2+ Kb4 Rg8 Rg6 Rg7 Rh6 Rg1 Qab8 Ng6 Qc8 Bd3 Qca8 Ne4 Qd8 Qe7 Qg8 Ng5 Kc5 Qg7 Ra6 Qf8 Kb6 Bb5 Kb7 Be8 Rb6 Ba6+ Ka8 Bc8 Qc3 Bcd7 Qa5
1K2n3/1b1pr1Bn/6Bp/qp3QP1/2pQ1Nn1/1k1q1R2/1Q1PP1R1/b2b3b b - - 0 1 legal: proof: c4 g5 b4 e5 f4 exf4 b5 g4 b6 axb6 c5 bxc5 Na3 c4 Qb3 c3 Qc2 Bg7 Qd1 Bf8 h4 b5 h5 Ra6 Nc4 Nc6 Ne5 Nb4 Nef3 gxf3 g4 Rg6 hxg6 Na6 g5 Nb8 Kf2 Ke7 a4 Kd6 a5 Kc5 g7 Kb4 a6 c5 a7 f5 a8Q c2 Nh3 c4 Qc6 h6 Ba3+ Kb3 Rg1 Bb7 Be7 Qa5 Qe1 c1Q Qe4 Qb1 Ra4 Na6 Qe5 Qd3 Rg2 Nf6 g8Q Nh7 Qc5 Bg7 Qd4 Nc7 Qdd5 Ba1 Qg6 Ne8 Kg1 f2+ Kh2 f3 Qd4 f4 Qc1 Rg8 Qe6 Rg7 Bf6 Re7 Bg7 Be4 Qf5 Bb7 Rg1 Be4 Bg2 f1B Bh1 f2 Rg2 f3 Kg3 Bb7 Kf4 Be4 Rh2 Bg2 Ra2 f1N Ra3+ Kb4 Rc3 f2 Ra3 Bgf3 Rg2 Ne3 Rc3 f1B Ra3 Rf7 Ke5 Bb7 Nf4 Bfe4 Rg4 Bh3 Rg2 Bg4 Rc3 Bgf3 Ra3 Nef6 Kd6 Neg4 Rc3 Re7 Ra3 Qa6+ Kc7 Ne8+ Kb8 Qb6 Ra6 Qa5 Re6 Kb3 Re5 Bed5 Re3 Bfe4 Rf3 Qe3 Rgg3 Bc2 Bg2 Qd3 Bh3 Ne5 Rg2 Bd1 Bg4 Bdc6 Bh5 Ng4 Bg6 Qe3 Rf1 Ba6 Rgg1 Bh1 Rg2 Bb7 Rf3 Qd3 Qcb2+
3R4/Pq4rN/2pb1P2/1N5p/pnK1B1Q1/1PnpQ3/bqn2n2/2Bk1q1N b - - 0 1 illegal: No proof kernel
b1n3BR/b1K1QR2/pQP2R2/4P2N/2p1k3/rp2r3/1p3Pbr/Bq2r2b b - - 0 1 illegal: No proof kernel
2N1k3/2r2pbB/nP1q1n2/1prPpQB1/r7/2PN2pp/Q3K1R1/B2n2r1 b - - 0 1 illegal: No proof kernel
BQ2nn2/nN5b/KbrBq1P1/4q2Q/P2k1p2/q3RP2/4r1q1/1bQRq1r1 b - - 0 1 illegal: No possible last move
Qr3qr1/2q2qn1/b2PPBN1/3RpR2/q1kqPnKb/r7/6bN/1Q4nR b - - 0 1 illegal: Other
1b3Kn1/3pn1Q1/P2P1bq1/2rr1NB1/3N2bN/2q1Q1bn/k2qPRB1/1b5r b - - 0 1 legal: proof: f4 a5 g4 h5 a4 hxg4 b4 axb4 f5 c5 f6 c4 Ra2 exf6 Rb2 f5 Rb3 cxb3 Bg2 f4 Bh3 Qa5 Bf1 Qd8 Kf2 Ke7 c4 Ke6 h4 f5 d4 b5 h5 g5 c5 Kd5 c6 Kc4 c7 g3+ Kf3 g4+ Kg2 b2 h6 b3 h7 b4 d5 Qg5 a5 Bg7 d6 Bf6 a6 Bb7+ Nf3 Nc6 c8N Nce7 Na7 Rc8 Rg1 Rc5 Nc3 b1Q Na2 b2 Qa4 Qa1 Qc6 Kb3 Qc7 b1B Ba3 Qc3 Kh1 g2+ Kh2 g3+ Kh3 Bd5 Ne1 f3 Qb8 f4 Qc8 f2 Nb5 f3 Qc6 Qgd2 Rh1 g1B Kg4 g2 Kh5 Bh2 Nd3 g1B Qb7 Be6+ Ne5 Bg3 Bg2 f1R Qa7 f2 Bc1 Rd1 Rh2 f1N Qb6 Bef5 Nf3 Ne3 Nh4 Ng4 Qa7 Nf2 Nd4+ Ka4 Qb6 b3 Nb4 b2 Nd5 Ka3 Ne3 Ka2 Qa7 Be6+ Nef5 Nh3 Qb6 Qe1 Bg5 Qed2 Ba8 Be3 Rf2 Rh1 Bg2 Rd5 Nb5 Bed4 Qa7 Bb6 Nbd4 Bc7 Qb6 Bb8 Qa7 Nh6 Qb6 Rc8 h8Q Rcc5 Qh7 Nhg8 Qg7 Bc2 Qa7 b1Q Qb6 Qg1 Qa7 Bb1 Qb6 Nc8 Kg6 Nce7+ Kh7 Bf7 Kh8 Bh5 Qa7 Bg4 Kh7 Nc8 Kg6 Nce7+ Kf7 Qgd1 Kf8 Q1c2 Qb6 Qe4 Qb5 Qe6 Qd3 Qe4 Qe3 Qec2 Nh6 Qg6 N6f5
q4Q2/1rBn2Kp/1Pn1qP1Q/2RBbr1N/6kP/1n3br1/1r2N1r1/2N2b1q b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 g5 e4 b5 f4 bxa4 e5 f6 f5 fxe5 Ra3 e4 Rf3 Nf6 Rf2 Ng8 Rf4 gxf4 Ke2 Kf7 h4 Kf6 c4 e5 g4 d5 b5 a5 b6 a3 c5 a2 c6 a1Q c7 a4 Qe1 d3+ Kd2 d4 Ne2 a3 Nec3 e3+ Kd1 e4 Qf2 e2+ Kd2 e1R Qg3 a2 Rh3 f3 Nb5 f2 Qh2 Re2+ Kd1 d2 Kc2 d1R+ Nd2 e3 Kd3 Ba6 Ke4 d3 c8Q Bd6 Qg2 Nd7 Qc6 Rb8 Qh1 Rb7 Qc8 Be5 Nb3 d2 Bg2 f1R Nc3 Ne7 Qc5 Ref2 Ne2 Rg8 Qg1 Qa8 g5+ Kf7 g6+ Kf6 g7 Nc6 Ba3 Rb1 Nbc1 d1B Bh1 Rb2 Qg5+ Kf7 Kd5 Rg2 Qh6 Qb1 Rg3 a1N Rg5 Nb3 Qcd6 Rff2 Qb8 Rf3 Bd6 Rf8 g8N Rfg3 Bc7 Bd3 Nc3 e2 Nf6 e1Q Nh5 Bf1 Qc8 Bg4 N3e2 Bf3+ Kc4 Re8 f6 Ke6 Rf5 Reg8 Qd8 R8g5 Qdf8 Bd4 Rc5 Be5 Qg8+ Kf5 Qgf8 Bg4 Kd5 Qba1 Nef4 Bd1 Nfe2 Kg4 Ke6 Rf5 Kf7 Q1a2 Ng1 Bf3 Nge2 Qb1 Kg8 Qe4 Kh8 Qd5 Kg7 Qe6 Nhf4 Qd1 Nh5 Rg1 Kh8 Bh3 Qd2 Be4 Nd4 Qf3 Qe3 Bf1 Kg7 Qg2 Nde2 Qh3 Bg2 Qh1 Qh6 Bd5 Be4 R1g2 Bc2 Bf3 Be4 Qc8 Bd5 Qb8 Nd4 Qa8 Nde2
K2b3B/Rnp1qB1P/1Pr2n2/nrNB3k/q1PQ1Q2/1rn1q3/b2n4/3b3N b - - 0 1 legal: proof: b4 d5 e4 dxe4 a4 h5 f4 b5 g4 bxa4 g5 g6 f5 gxf5 Ra3 f4 Rg3 Nc6 Rg2 Nb8 Rg4 hxg4 Kf2 f5 h4 Kf7 d4 Kg6 c3 a5 d5 e5 d6 g3+ Kg2 a3 d7 a2 b5 a1N b6 e3 Kf3 a4 Qd3 a3 Qd6+ Kh5 g6 a2 g7 e4+ Ke2 g2 Nh3 g1N+ Kd1 f3 Qa3 f4 Ng5 e2+ Kd2 e1R Rh2 e3+ Kd3 f2 Kd4 f3 Kd5 e2 Qc5 Qe7 d8Q Nc6 Nh3 Rh6 Qc4 Na5 Qf4 Be6+ Ke4 Nf6+ Kd4 N1b3+ Ke5 a1Q g8B Nb7 Bg2 f1B Nd2 f2 Qdd4 Qa4 Bd5 N3a5 Bb2 Rb1 Ne4 e1Q Bf7+ Rg6 Rh1 Be2 Nc5 f1N Nf2 Nd2 Rh3 Qc1 Nh1 Bd1 Re3 Ne2 c4 Nc3 Ba1 Rb5 Re1 Qca3 Bb2 Bb3 Ra1 Bh6 Ra2 Bg5 Ra1 Qf8 Ra2 Bg4 Ba1 Bgd1 Ke6 Nfe4+ Kd7 Bd8 Bb2 Ra7 Kc8 Qe7 Kb8 Nf6 Qd6 Kh6 h5 Ra6 Ra1 Ba2 Qh2 Kg5 h6 Ra7 Qd6 Kh5 h7 Qe3 Q6f4 Q3b4 Nd7 Qbe7 Nc5 Qb4 Bg8 Nd7+ Kc8 Nab3 Bgf7 Na4 Bc1 Bb1 Ra3 Ba2 Bb2 Ra6 Bg8 Rc6 Qg7 Ra7 Be5 Nc3 Qgf6 Ra4 Qd4 Qa5 Qff4 Rab4 Bh8 Nf6 Kb8 Na1 Nd7 Rb2 Ra4 Nab3 Nc5 Qb4 Ra8 Qa4 Ra7 N3a5 Ka8 R2b3 Bgf7+
3rQ3/2k1nbrN/2PB2pQ/1R4r1/nRBb3b/1K1Rq3/P1nqb1P1/qb6 b - - 0 1 illegal: No proof kernel
5Nn1/r3R1n1/p2PqB2/1Q1rQ1R1/Pn1r4/K1N1b2R/1r1qrP2/1r2rk1b b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 h5 Nc3 h4 Be2 h3 Bf1 fxg6 Bg2 hxg2 Nb1 g5 Qf3 g4 Qe2 Bd7 Qd1 Bc8 b4 Kd7 a4 Kc6 d4 Kd5 Kd2 g5 Kc3 c5 Kb2 e5 h4 e3 b5 Ke4 d5 g3 d6 c3+ Ka2 a6 h5 c4 b6 g4 b7 c2 h6 c3 h7 e2 Rh2 e1R Ka3 Qe8 Ka2 Bh6 Nd2+ Kd3 Rh4 e4 Ne2 g1R Ba3 c1Q Rh3 e3 Qb3 g2 Qf7 c2 Ne4 g3 Rh5 Qd2 Rh1 c1N+ Kb1 Nb3+ Bc1 Nd4 Qf4 Ra7 Qf6 Ne6 N4c3 Nc6 b8Q Bb7 Nb5 Nb4 Qe7 Ng7 Qec7 Qe6 Ned4 e2 Qc6 Be3 Qc5 Rgf1 Rh4 g1R Rh5 Bh1 Qe5 g2 Rg5 Rd1 Ra2 e1R Nc3 Re2 Qb7 Rfe1 Qbb5+ Qc4 Ra1 Rgf1 Ra2 g1R Ne6 Rg4 Nf8 Rd4 Rc2 Rd5 Kb2 Rd4 Ka3 Rg1 Qa5 Qe6 Bb2 Rb1 Qb6 Rgg4 Ba1 Rd5 Rb2 Rgd4 Qa5 Na2 Rb7 Nb4 Re7 Rb2 Qc5 Reb1 Qa5 Ree1 Na2 Ke2 Nc3+ Kf1 Qb6 Nf6 Qc6 Rg8 h8R Re2 Rhh5 Rh8 Qe8 Ng8 Rh3 Rhh4 Qc6 Rhe4 Qc4 Bf4 Qb3 Ree1 Qc4+ R4e2 Qb5 Be3 Ne4 Rc2 Qg3 Rdc4 Bf6 Rcb2 Nc3 Rcd4 Qe5
1r5Q/2rr1B1b/1BqNkP2/n3Ppb1/n1NK1Pqq/4r3/2b1r3/N1R2rQ1 b - - 0 1 illegal: Other
5Q2/K1B1nNqq/5b2/1B1r1kP1/1bR1pQ1P/1n1Qr1qn/4P1qn/nb2R3 b - - 0 1 legal: proof: f4 a5 g4 g5 b4 gxf4 d4 axb4 Nd2 c5 Ne4 cxd4 g5 h6 Nf2 h5 Ng4 hxg4 Kd2 f5 Kd3 Kf7 Kc4 Ke6 Kb5 d5 h4 d3 a4 d4 c4 g3 c5 d2 a5 f3 a6 b3 c6 d3 c7 g2 Kb6 f4 a7 f2 Ra3 f3 Bb2 Nc6 Rh2 Nb4 Ba1 b2 Ra5 b1Q Rh3 Qd7 Ra2 Nc2+ Bb2 Na1 Qa4 d1N Qa5 d2 Rh1 Qh7 Nh3 g1B Bg2 f1N+ Nf2 Nh2 Kc5 b5 Kb6 b4 Bf6 b3 Qa6 b2 Qa5 b1N Qb4 Bb7 c8Q Be4 Qb7 Rd8 a8Q Kf5 Qbb8 e5 Qaa3 Qdg7 Qba4 Bb4 Qaa8 Rd3 Qc6 Ne7 Qac3 Rhd8 Qd4 Rd6 Nh3 f2 Nf4 f1Q Ka7 Nf2 Rc2 d1Q Ne6 Nd2 Nd8 Nh3 Rc4 Ndb3 Nf7 Qde1 Qf8 Qg3 Qcc5 Be3 Qc6 Qff2 Re1 Re6 Bf3 Qfg2 Qcc5 Rd2 Qdd8 Bc2 Bc6 Bb1 Bb5 Bd4 Qd7 Rd3 Qb6 e4 Be5 Re3 Bc7 Bf6 Qd3 Re5 Qbd6 Rd5 Qf4+
1n4b1/qq2Qn2/2pR2rb/1Q3B2/PKPBb1n1/5bkN/qP1n3r/2NQ1b2 b - - 0 1 illegal: No proof kernel
3N1BBR/2b3nb/P2b1n2/1Kp2rb1/1n2k2r/1qPrrQ2/1b3P2/q1R1Q1B1 b - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 b5 f5 b6 h4 Nc3 fxg4 Nce2 axb6 Rb1 b5 Ng3 hxg3 Ra1 b4 Ke2 Kf7 a4 Ke6 h4 Kd5 d4 c5 h5 g5 h6 e5 h7 b5 a5 g2 a6 e3 Kd3 e2 Rh6 e1B Be3 b3 Bd2 b4 Bc1 e4+ Ke3 b2 Rc6 b1Q Ra2 g3 Rg6 g4 Bd3 b3 Ke2 e3 Bb5 b2 Kd3 e2 Qd2 Nc6 Kc3 Bg7 Ra5 Nb4 Rh6 Qa1 Ra4 b1R+ Bb2 Qb6 Nf3 g1B Ne5 g2 Bd3 g3 Nd7 Rd1 Ra2 Nf6 Bf5 Bh2 Ne5 g1B Nf7 g2 Be6+ Ke4 Kc4 Bc7 d5 Bgh2 d6 g1N d7 Nh3 d8B Ng5 Be7 Bhd6 Bf8 Bb7 Qc1 Rd3 Nd8 Bd2 Bg8 e1R Be5 Ree3 Qe1 Ne6 Bh2 Bc6 Ra5 Be8 Ra3 Bg6 Bg1 Bc1 Ra2 Bb2 Rh3 Bh6 c3 Ng7 Ra5 Qb7 Rh1 Qd5+ Kb5 Bg5 Rh6 Qb3 Ra3 Qb1 Ra1 Q1a2 Rc1 Qa1 Nb7 Re8 Nd8 Re5 Bf7 Rg8 h8Q Rf5 Qh7 Rh8 Bg8 Nd7 Rh1 Nf6 Qh3 Rh4 Qg3 Bh7 Rh3 Rg4 Rh5 Rh4 Rh6 Bg6 Rh8 Bh7 Qf3+
r2rn1n1/N2q2B1/1bB1bNp1/r2b3R/1q3P1K/1nb1QrPQ/r2P2N1/2k5 b - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 c5 axb4 c6 h5 Qc2 dxc6 Qb3 c5 Qd1 c4 g3 h4 f3 h3 Na3 Qd5 Bd3 Qd7 Bf1 Qd8 Rb1 Qd6 Rb3 Nd7 Re3 Qd4 Nb5 Qd6 a4 Nb8 Na3 Qd8 Re2 Qd4 Rf2 Qd8 Rg2 hxg2 Kf2 Kf7 h4 Kf6 f4 Kf5 h5 b5 h6 e5 a5 c5 a6 c3 a7 c2 h7 g6 Nc4 b3 Na3 b2 Qe2 b1Q Bb2 c1N Bd4 b4 Rh2 e3+ Kf3 c4 Qe1 e2 Bf2 b3 Bc5 e4+ Kf2 e3+ Kf3 c3 Bd4 c2 Ba1 b2 Rh3 Na6 Nb5 Nb3 Na3 c1R Nb5 Bb4 Rh6 Rc3 Qc1 e1R Rh1 e2+ Kf2 Ke4 Rh4 Kd3 Rh3 Be6 Kf3 Qd7 Rh6 Nc7 Rh5 Ne8 Qd1 Rd8 a8N Rc2 Na7 Bc3 Nc7 Ra8 Nh3 g1B Nd5 Bb6 Bg2 Rg1 Qe1 Rf1+ Qf2 e1R Ng5 Re5 Ne3 Ra5 Ne4 Rd8 Bh1 Ra8 Kg2 Rd8 Qg1 Rf3 Nf6 Ra8 Kh2 Bd5 Ng2 Ke2 Qe3+ Kd1 Rf5 Kc1 Kh3 Qa2 Kh4 b1B Qe5 Qaa4 Rh5 Ra2 Qe3 Bf5 Bb2+ Kb1 Ba1 Qb4 Bb2 Bfe6 Ba1 Ne7 Bb2 Rf8 h8Q Ng8 Nh7 Bg7 Re5 Rf2 Kg5 Nef6 Ne1 Bc4 Bc6 Rfd8 Ng2 Ne8 Bc3 Kc1 Rb5 Be5 Rc5 Bb8 Bg7 Be5 Nf6 Bc3 Qh3 Rf3 Re5 Bcd5 Kh4 Qb7 Rg5 Qd7 Rh5
1q2bRnr/Q2p1N2/1n1q1nq1/3Nq1B1/r2P1R1q/2P1Q2b/P1b4K/Nkb5 b - - 0 1 legal: proof: h4 c5 f4 g5 b4 gxh4 f5 cxb4 f6 a5 e3 a4 Ba6 exf6 Bd3 f5 Bc4 f4 Bb3 axb3 Kf1 Na6 d4 Ke7 g4 Kf6 Kg2 h5 e4 b5 c3 h3+ Kh2 f3 Bb2 h4 Na3 f2 Qf1 Qa5 Qd1 f1Q Nf3 Bb7 Qb1 Bd5 Ne1 Nh6 Qc1 Nc7 Qb1 Qf4+ Kg1 h2+ Kg2 Be7 Bc1 b2 Nec2 b3 Ne3 b4 Rf1 h1N Nd1 h3+ Kg1 h2+ Kg2 Nf2 Qd3 b1Q Qc4 b2 Rh1 b3 Rg1 h1Q+ Kf1 Qh4 Nc2 Ba3 Kg2 Qd6 g5+ Kg6 Qc6 f5 Nb4 f4 Qa6 f3+ Kf1 Bf7 e5 Kf5 e6 Ke4 e7 Nd5 g6 Nfg4 g7 f2 Kg2 Qd3 g8N b1Q Qc6 b2 Rh1 f1B+ Kg1 Bh5 Qb6 Bh3 Bg5 Qdb5 Qa6 Qbb8 Nc2 Nb6 Qb7+ Kd3 e8Q Ra6 Qa7 Qad5 Qe1 Be8 Nde3 Q5e5 Nd5 Ra4 Rh2 Qb4 Rf2 Q4d6 Rf8 Nf6 Nge7 Nhg8 Nf5 Qa8 Nh6 Qab8 Nce3 Qc2 Nf7 b1B Qg3 Kd2 Kh2 Qg6 Qf4 Bd3 Rf1 Bc1 Rf3 Bdf5 Nc2+ Kd1 Na1 Bb1 Nb3 Kc2 Na1+ Kb2 Qg3 Bc2 Rf4 Kb1 Qe3
2N2b2/p1qR1b1B/1b2nPP1/r1Bqr2n/P5q1/1Q5R/nK1k1b2/3Rbq1Q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxe4 h5 bxc4 h6 f5 Be2 e3 Nc3 gxh6 Bd3 h5 Ne4 fxe4 Bf1 h4 f4 Kd7 a4 Ke6 b4 Kf5 d4 c5 d5 e5 b5 h5 g3 e2 Kd2 e1B+ Kc2 e3 b6 Ke4 g4 c3 b7 c4 d6 h3 g5 h4 d7 h2 f5 h3 g6 e2 Qd6 Na6 b8R Qg5 d8Q Qg4 Bf4 Rh5 Kb1 c2+ Ka2 c1N+ Kb1 c3 Rb3 c2+ Kb2 Bf2 Q6e7 e1B Rba3 Bb6 Qde8 Bef2 Qg7 Nf6 Qgd7 Nc7 Bb5 Na2 Rf1 Ne6 Qef7 c1Q+ Kb3 Qc4+ Kb2 Qc7 Rd1 Ba6 Bf1 Re8 Be3 Bc4 Nf3 Bd5 Rg1 h1Q Bc4 h2 Nd4 Qhf3 Nb5 h1Q Rg3 Qf1 Bc5 Kf4 Rad3 e4 Qc8 e3 Qa8 e2 Rh3 e1B Nd6 Rg5 R3d2 Nh5 f6 Re7 Rd4+ Ke3 Nc8 Rf5 Bb3 Bc4 Rd7+ Ke2 Bd4 Ra5 Bc5 Qd3 Qh1 Qd5 Bc2 Ng5 Bf5 Re5 Be6 Bb3 Qe8 Bc4 Bg8 Ne6 Bh7 Bb3 Ra1 Kd2 Qe7 Bc4 Qd6 Re4 Qg3 Re5 Qb3 Bb5 Rd8 Be8 Rd7 Bf7 Rd1+
R1bN1K2/4QnPp/q1b2q2/rnb5/2Pk3n/Q1B1NB1P/1r3q1b/N3qq2 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 f4 g5 f5 a5 Ra3 axb4 Rf3 Qb6 Rf2 Qd8 Rf4 gxf4 Kf2 Kf7 g4 Kf6 c4 Ke5 h3 b5 a5 d5 f6 e3+ Kf3 e2 a6 e1N+ Ke2 f3+ Kd2 f2 g5 b3 a7 b2 g6 b4 f7 b3 g7 d3 Kc3 d4+ Kb4 d2 Kc5 d3 Ne2 Na6+ Kc6 Ng2 Qc2 d1B Rh2 d2 Nd4 Nc7 Be2 f1Q Qc3 Nh4 Rh1 Qf2 Kc5 Nb5 Re1 Nh6 Na3 b1Q Qf3 b2 Qc3 Qg6 Qb4 b1Q Qb3 Qa6 Qa2 Ba4 Nc2 d1Q Qa3 Rg8 Rg1 Qdf1 Bd2 Qbe1 Ne3 Ke4 Rg6 e5+ Rd6 Rb8 a8N Qdf6 Nc7 Be7 f8Q Nf7 Bc3 Rb7 Bd1 Kd3 Nef5 e4 Bf3 e3 Nce6 e2 Nd8 Rb8 Kd5 Ra8 Rb6 Bc5 Nc2 Rb8 Qd6 Re8 Na1 Re5+ Kc6+ Rd5 Ne3 Rb7 Bd2+ Kd4 Qe6 Qc1 Ba5 e1B Qd6 Beb4 Qe6 Bd6 Qe7 Bbc5 Bb4 Qce1 Bd2 Qa5 Ra6 Rb8 Ra8 Bh2+ Qd6 Ba6 Kd7 Bc8+ Ke8 Qa6 Bc3+ Kd3 Qg3 Nd4+ Nc6 Bb4 Qe5 Ra5 Nd5 Bc5 Qe6 Rb2 Ne3 Bb5 Qd7 Ba4 Nd8 Bc6 Bd5 Nb5 Bf3+ Bd5 Qe7 Bdb7 Bb4+ Kd4 Kf8 Bc6 Bc3+
2r2qb1/p1P1Rb2/2b3Q1/K2Pn3/1n2N1r1/P1q1q3/1Qb1N1RB/qn2k1bR b - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 e4 d5 f5 dxe4 Be2 g6 g5 gxf5 Bf3 f4 Bg4 hxg4 d4 Kd7 Kd2 Ke6 h4 Kf5 c4 b5 g6 e5 a3 g3 h5 g2 g7 e3+ Kd3 b3 Kc3 Ke4 c5 f5 Kb4 e2 h6 e1Q+ Bd2 Kd3 h7 f3 Qc1 e4 Qd1 b2 Nh3 g1Q Nc3 b1N Qb3 f4 Qd1 f2 Qc1 f1B Na2 Ke2 Rh2+ Bg2 Qc3 e3 Qc2 f3 Qa4 f2 Qb3 f1B Qd5 Ne7 g8R Ng6 Rg7 Rg8 h8Q Nc6+ Kb3 b4 Ka4 b3 Bc1 b2 Nb4 Qc3 Kb5 Nge5 Nf2 Be6 Qd7 Ke1+ Ka4 e2 Qe8 Rc8 Nd5 Bf7 Bf4 Nb4 c6 Bc5 Ne4 Qge3 c7 Qe7 Ra2 Qf8 Rh1 Bf3 Rgh7 Rg4 Bh2 Bg8 Nf4 Bg2 Nf2 Bc6+ Ka5 Bf7 Ne4 Bg8 Qg6 Bf7 Bg1 Bg2 Nd2 Bgd5 Ne4 Bg8 Qhf6 Bdf7 d5 Kd1 Rg7 e1Q Bh2 Qf1 Ne2 Ke1 Qh7 Nd7 Qff5 Nd2 Rg5 Qg3 Nf4 b1B Nd6 Kd1 Rh5 Be3 Qhg6 Bg1 Qe4 Qgf3 Re5 Qfe3 Re7 Ne5 Qg2 Bd3 Rb2 Qfe1 Rc2 Qa1 Ne4 Nb1 Rb2 Qc3 Qc2+ Ke1 Qb3 Qe8 Rg2 Qf8 Qb2 Bc2 Ne2
B2N2r1/2B1bbkp/RbB2q1N/qnP2b1q/2P2nq1/1r5Q/5Q1P/b3n2K b - - 0 1 illegal: Other
2Rn1Q2/Rq6/1n1r2b1/bP2NQq1/2pRnb2/r1P1q1n1/1PK2B1k/4bNr1 b - - 0 1 illegal: Other
8/1nPkrp1n/qBq2PR1/q3NB1K/b1n3Qn/1P1q1QbQ/6n1/2n2r1R b - - 0 1 illegal: No possible last move
5Qq1/K1Nr2q1/1p2R1q1/1P1q1N1R/1qb2BrQ/2b1PQn1/n1P3kb/q2b4 b - - 0 1 illegal: No possible last move
B2k1nq1/K2p4/1n6/n1NP3R/1P1bB1Nq/1Q5r/P1b1b1nB/1bQ1r1bb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 e5 c5 exf4 c6 a4 Na3 bxc6 Rb1 c5 Rb2 c4 Rb3 axb3 Kf2 h5 e4 f5 d4 c5 g4 b2 e5 b1B g5 h3 g6 h4 d5 c3 e6 f3 Ke3 h2 g7 c2 e7 f2 Bc4 f1B Nh3 f4+ Ke4 f3 Be2 c4 Kd4 f2 Kc5 c3 Bg4 Bd3 Rf1 h1Q Qf3 Na6+ Kd4 Nf6 g8B Bg7 Bg5 c1B Qg2 c2 Qe4 Nc7 Kc5 Be3+ Qd4 c1N Kb6 Bca6 Rd1 f1N Bf4 Nh7 Nf2 h3 Nc4 h2 Ne5 Nf8 Bh7 Bdc2 Be2 Nb3 Ne4 Na5 Qc5 Bg1 Ng4 B7d4 Bb5 Ne3 Bc6 Ng2 Rf1 Rc8 Ka7 Be2 Ba8 Rb8 Bf5 Rh3 Bg3 Rb6 Qc4 Rg6+ Nc5 Re6 Be4 Qc8 Rf5 Re5 Bc6 Na8 Rh5 Nb6 Ba8 Bed3 Bh7 Re1 Be4 Be2 Bd6 Qc6 Bf4 Qg6 Qb3 Qg8 Ne3 Kf7 e8Q+ Kf6 Qg6+ Ke7 Qh6 Kd8 Ng4 Nh4 Bf5 Qe4 Bb8 h1B Bh2 Ng2 Qc1 Qe7 Bh7 Qh4 Be4
n5QN/2q1r3/r1r3Pn/q2p2R1/1b1bkN2/rB4Rn/2PP3n/Q1KN1bb1 b - - 0 1 legal: proof: h4 c5 e4 a5 b4 f5 h5 fxe4 h6 c4 Bb2 axb4 Nh3 c3 Qc1 cxb2 Ng1 gxh6 Qd1 h5 Bb5 h4 Be2 Bh6 Bf1 Bf8 a4 Kf7 f4 Kg6 g4 d5 g5 Kf5 g6 b5 a5 h5 a6 e5 a7 b3 Bd3 h3 Rh2 b4 Ra3 h4 Nf3 Ba6 Rf2 h2 Qe2 h1N Kd1 h3 Ra4 h2 Qe1 Ng3 Ng1 h1N Na3 Rh7 Rg2 Nh6 Ne2 b1Q+ Nc1 b2 Ra5 b3 Re2 Nd7 Qf1 Nb6 Qg1 Qa1 Rh2 b1R Qe3 b2 Re2 Nf2+ Ke1 Nf1 Qf3 Nh2 Qg2 Nh3 Bc4 e3 Kd1 e4 Qh1 Rc8 a8Q Bb4 Ba2 Rc6 Rg2 Qc7 Qg8 Na8 Nc4 Re7 Ne5 Bb5 Qe1 Bf1 Bc4 Qa4 Nf7 Ra1 Nh8 b1R Ra7 Qb5 Ra3 Rb3 Rg4 Ra2 Ne2 Qa6 Nc3 e2+ Kc1 e3 Rg5+ Kf6 f5 Ke5 Qd1 e1B f6+ Kf4 f7 e2 f8N Bf2 Qe1 Bd4 Ne6+ Kf3 Nf4 Qab6 Qh4 e1B Kd1 Bef2 Qh5+ N6g4 Qh4 Bg1 Qe1 Nh6 Nd3 Qb5 Nf4 Rbb2 Rb3 Raa6 Ra3 Ra2 Qe5 Bdf2 Kc1 Qba5 Nd1+ Be3 Rb3 Ra3 Qa1 Ke4 Rd3 Ba7 Rdg3 Bad4 Bb3
r1kbQ3/n1Rqp1B1/4b3/6rq/1K3P1n/nP3qbB/Qq1nPR2/3bNR2 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 g5 cxd4 g6 h5 Nd2 h4 Ne4 fxg6 Kd2 g5 Ke1 g4 Ng3 hxg3 Kd2 g5 c4 d5 h4 Kd7 b3 a5 c5 a3 f3 g2 h5 d3 Kc3 g3 h6 g4 h7 a2 Bg5 d4+ Kc4 a4 Rh5 d2 Bh4 d3 Rb1 a1Q Kb5 a3 Rb2 a2 Bg5 Bh6 Bf6 Nc6 Bg5 Nf6 Qc2 d1B Nh3 g1N Qc1 d2 Bh4 g2 Kc4 g3 Qc2 Na7 Qc1 Qe8 Kc3 Bf4 Qb1 Ne4+ Kc4 Rg8 h8Q Rg5 Rh7 Qh5 c6+ Kc7 Qc2 Be6+ Kb4 Qc1 Qf8 a1N Rb1 Qb2 Nf2 Be5 Qf7 Kc8 Nd3 Bc7 f4 Nf3 Qg8+ Bd8 c7 g1Q Ne1 g2 Qe8 Qh1 Bf2 g1B Bh3 Nh4 Bd4 Q5f3 Bg7 Bf2 Rc1 Qh2 Qb1 Bg3 Qa2 Bc2 Rh8 d1Q Rg8 Qd7 Rh8 Kb7 c8R Nd2 Rb8+ Kc7 Rb7+ Kc8 Nd3 Qhh1 Rf1 Bd1 Ne1 Qh5 Rf2 Q1f3 Rh6 Bg8 Ra6 Be6 Rc6+ Qc7 Rc1 Nc2+ Ka4 Na3 Kb4 Qd5 Rc3 Qg2 Rcf3 Qd7 Rf1 Qh1 R3f2 Q1f3 Rc7+
b1n3Q1/1NN2bqP/1bp1n1N1/1rq1n2B/PQR3p1/1R2r1Pk/3br3/K1b5 b - - 0 1 illegal: No extended proof kernel
4q3/R1nb1p1r/1Q2bPPq/N2b1kB1/1r1bR3/5nb1/qpK4P/3Q1BBr b - - 0 1 illegal: No proof kernel
1Q4bq/Np1B1pq1/1P2n1Pb/PrR5/1nQn4/K3k2q/2bNb1r1/bN4B1 b - - 0 1 legal: proof: b4 d5 a4 a5 c4 dxc4 f4 e5 h4 exf4 b5 g5 Ra2 gxh4 Rb2 Bb4 Rb3 Bf8 Rb4 axb4 e4 Kd7 g4 Kd6 d4 h5 Kd2 c5 Kc2 h3 Kb2 b3 g5 h4 a5 h2 b6 f3 d5 Ke5 d6 f2 d7 h3 Qe2 Kd4 e5 c3+ Ka3 b2 e6 c2 e7 c4 Bd2 c1N Qd1 c3 Qh5 c2 Bf4 Nh6 Bd2 Nd3 Bf4 c1B Qg4 Nf5 Kb3 Nc5+ Kb4 Rh5 e8N Ne6+ Kb3 Na6 Be2 f1B Qg2 Qf6 Ka2 Bg7 Bg4 Nb4+ Ka3 Be2 Be5+ Ke3 d8Q Nfd4 Nd2 b1B+ Ka4 Bg6 Nd6 Bh7 Qd5 Bg8 Ngf3 Qh6 Rd1 h1Q Nb1 h2 Nb5 Bb2 Qf8 Ba1 Rc1 Qh8 Bf5 Qg1 Nfd2 h1Q Ka3 Bh6 Qc4 Qh3 Na7 Bd7 Bh2 Ba4 Qb8 Bc2 Bg4 Qgg3 Bf5 Qge5 Bg4 Qeg7 g6 Rb5 Qbc7 Rc8 Qb8 Nf4 Bd7 Nfe6 Rg1 Rcc5 Rg5 Rf5 Rh5 Rf2 Rc5 Rg2 Bg1+
2NBr3/1pR4n/2k3bq/2n2pq1/1R1n3P/1n1rRPNr/1b2n2P/1K1b1Q1Q b - - 0 1 illegal: Other
rRkbRr2/rp2Q1NK/bB6/1P1N1n2/3n4/1Qq4P/2rpq1P1/Nnrb4 b - - 0 1 illegal: No possible last move
1r1n2QQ/2NN1Nq1/2b1p3/b1r1nr1b/2B3bK/P2qP3/R1P1Rp2/kbq5 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h6 Bg5 g6 Bf6 gxf5 g5 f4 g6 Ra3 Bh4 Ra8 Bg5 hxg5 Kf2 f5 h4 d5 g7 Kf7 e3 Ke6 a3 b5 h5 d3 h6 g4 h7 f3 Kg3 b3 Kh4 g3 Kh5 g2 Qd2 b4 Rh2 b2 Ne2 g1Q Nec3 f4 Qe1 f2 Ra2 b3 Qd2 f3 Kh4 d4 Qc1 d2 Na4 Kd5 Qd1 d3 Rh3 Kc4 Qe1 d1B Nc5 e6+ Kh5 Nd7 Qd2 Bb7 Qe2 Bc6 Bg2 f1R Rh1 Nh6 g8N Rc8 Rh2 Ne5 Nc3 b1Q N5a4 b2 Nd5 Bb4 Ndc3 Ba5 Rh3 Qc1 Rh2 b1B Qe1 d2 Qg3 Qd3 Kh4 Nhf7 Nh6 Nd8 Nd5 Be2 Qg5 d1B Nc7 Re8 Nc5 Kc3 h8Q Rb8 Ra1 Kb2 Qgg8 Re7 Bh1 Qg7 Nf7 Rd7 Rg2 Rd5 Nd7 Rc5 Rh2 Rg1 Rf2 Rg5 Rh2 Rf5 Ra2+ Kc3 Rb2 f2 Bd5 Bg4 Rh1 Bh5 Re1 Bdg4 Re2 Nb7 Rb6 Nd8 Bb3 Kb2 Bc4+ Ka1 Rb3 Ba4 Rb2 Bc6 Ra2+
4NRK1/1BQrr3/2npPq1q/1N3b2/1qq2bnQ/1r2pkP1/2qP4/n1B2Q2 b - - 0 1 illegal: No proof kernel
1qq3NK/1pQ5/r3P3/1bb1rRb1/6B1/1b1N2k1/QPPqpnnQ/2b2nR1 b - - 0 1 illegal: No proof kernel
1B2nR2/2Q4n/2K3Qb/3pr1N1/rqP1pP2/bqN1qr2/nk2PQb1/3R2r1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bd2 h3 Bg2 hxg2 Bg5 fxg6 Bf4 g5 Bc1 g4 Kd2 Kf7 Kd3 Ke6 Ke4 d5+ Kd3 Ke5 c4 b5 h4 g5 a4 b3 a5 b2 a6 g3 f3 g4 a7 b4 h5 b3 h6 Qa5 h7 Na6 Rh2 Qb4 Rh1 Bh6 Ra5 Nc7 Nd2 b1R Qc2 b2 Nh3 g1R Nf2 g2 Ra3 g3 Ra5 Bh3 Ra6 Ne8 Ra1 Ngf6 Nb3 e6 Be3 Rbf1 Qd1 b1N Nc1 Nc3 Ra4 Na2 Qe1 Rg8 h8Q Rg5 Qf8 Nh7 Ne4 Rf5 Qg8 Rf2 Kc2 d3+ Kd1 d2 Kc2 Rff1 Bf4+ Kd4 Qg6 e5 Ng5 e4 Bb8 Re5 f4 Rf2 Ra3 Rf3 Rb3 d1Q+ Kb2 Qc3+ Ka3 Qdc2 Ka4 Q3d2 Kb5 Qb4+ Kc6 Qd3 Rb2 Qdb3 Rd2+ Kc3 Rd3+ Kb2 Qf2 Re1 Qe3 g1Q Rd1 g2 Qb6 Qge3 Qc7 g1B Rh2 Nc3 Na2 Bg2 Rh4 Bf2 Rh1 Rg1 Rh5 Nb5 Nc3 Bh4 Ne6 Bd8 Rf5 Be7 Ng5 Bc5 Nb1 Nc3 Rf8 Na2 Nc3 Qd2 Qb6 Be7 Qf2 Qe3 Bd6 Rb8 a8Q Rb7 Qd8 Ra7 Qc8 Ra4 Bb8 Qbb6+ Kd7 Ba3 Qc7 Q6b4 Kc6
q1n3K1/n1n3P1/b1NrpBqr/3r3q/6Q1/3pP2B/PkQ1N2Q/rbb3R1 b - - 0 1 illegal: No possible last move
BN1R1R1b/1r5Q/2np3Q/bk1P1R1b/P1nr2N1/nb3b1q/n2p2P1/1n4K1 b - - 0 1 illegal: No possible last move
Qn3bN1/1bqB4/4b2p/3rr1BP/bRP3P1/3r1q1b/K1n1pR1B/2k2b1Q b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 Nc3 f5 Nd5 fxe4 f5 axb4 Nf4 gxf4 Kd2 Kf7 a4 Kf6 h4 Ke5 c4 d5 Kc2 b5 Kb3 h6 a5 e3 f6 Ke4 g3 e5 a6 f3 f7 e2 a7 e1R h5 f2 Ba3 Ke3 Rh4 d3 Ra2 d4 Rh3 e4 Rc2 d2 Qc1 d3 Kb2 b3 Be7 b4 Bg2 f1B Kb1 b2 Bf6 Bb7 Bh1 Qc7 Bd8 Ne7 Bg2 Nec6 Bf3 Nd4 Ka2 b1B+ Ka1 b3 Ra2 Nc2+ Kb2 Rg8 Qd1 Rg5 Bh1 Rd5 Qc1 Re2 Qe1 d1Q Nf3 d2 Bg5+ Kd3 Rh2 e3 Ra4 Bh3 Qg1 Qf1 g4 d1B Nd2 Qf3 Ne4 Re1 Nf2+ Kd2 Rb4 Be2 Rg2 Bf1 Ne4+ Kd1 Rf2 Re2 Kc3 b2 Kb3 Kc1 Nf6 Red2 Ng8 e2+ Ka4 Ba2 Bg2 b1B Qh1 Bc5 f8B Bb3+ Kb5 Rd3 Bg7 Bf8 Be5 Qe7 Ka5 Ba4 Bh2 Qc7+ Rb6 Qff7 Bc6 Qf3 Bb5 Na6 Bc6 Re8 a8Q Nb8 Bd7 Re5+ Bb5 Bd5 Bd7 Be6+ Qd5 Bb5 Qa8 Ba6+ Ka4 Bb7 Rb4 Rdd5 Bh4 R2d3 Bf6 Ba2 Be7 Nd4 Bh4 Bb3+ Ka3 Ba4+ Ka2 Nc2 Bg5+
rbb1q1R1/6Qn/p6B/P3NB2/Q1bRP2n/1pkQ2P1/n1bn3r/3rb1K1 b - - 0 1 legal: proof: f4 e5 d4 exd4 b4 g5 b5 gxf4 g3 h5 b6 h4 Nd2 h3 Nc4 cxb6 Ne3 b5 Ng2 hxg2 Qd3 b4 Qd2 Rh7 Qd1 Rh8 Kf2 Ke7 c4 Kf6 e4 Ke5 h4 b5 a4 f5 c5 d5 c6 f3 a5 a6 c7 d3 h5 Kd4 h6 d2 h7 b3 Rh6 b4 Nh3 b2 Rb1 f4 Ng5 b3 Rb6 Bd6 Rb5 Nc6 Rb8 Nce7 Bd3 g1B+ Kf1 f2 Qh5 d1N Bb5 Nf5 Qg6 Nh4 Bc4 Nf6 Nh3 Qe8 Qg7 Nc3 Rb4 Na2 Rb5 Kc3 Be3 d4 Rb8 d3 Rd1 b1B Be6 d2 Bf5 Bc2 Ng5 Be5 Nf7 Bd6 Ke2 f1N Ne5 Bf2 Qd7 Be1 Qa4 Rf8 h8Q Nh7 Qg7 Rh8 Rc1 d1R Rb4 Bb7 Rd4 Nd2 c8Q+ Bc7 Qd8 Bb8 Qdd7 Bc8 Qd5 Nb1 Kf1 f3 Kg1 Nd2 Bh6 f2+ Kh1 f1B Kg1 Bc4 Qd8 Kb2 Qdd7 B2d3 Rc3 Bb1 Rf3 Bc2 Rf4 Kc3 Rg4 Rf8 Qge7 Rf6 Rg8 Rd6 Qg7 Rf6 Bg4 Rf2 Bf5 Rh2 Qdb5 B4e6 Qf1 Bc4 Qd3+
K1nB3n/6N1/nrnP2Q1/3p1bP1/bn1R4/qB1P1pb1/2B1N1rQ/2kb1r2 b - - 0 1 illegal: Other
1N2nrBQ/b1b1k1NK/b1p3R1/q1bp3N/q3b3/3P4/P2n2P1/1n1rQR1b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 f5 c5 fxe4 Ba3 b6 b5 bxc5 Bb4 axb4 Qb3 c4 Qc2 Ra7 Qd1 Ra8 Ke2 h5 Ke3 d5 Kf4 e5+ Ke3 c6 f4 c3 f5 b3 f6 b2 f7+ Ke7 b6 h3 b7 h2 Nh3 c2 Nf2 c1B Bd3 h4 Ng4 h3 Qe1 Qa5 Rf1 h1Q Bc4 h2 Rf4 Nd7 b8N Ndf6 Be2 Ne8 Nh6 Ngf6 Na3 b1B Nd7 Ba6 Qf2 Qd1 Bh5 Qda4 Nc5 h1B Bg6 Rb8 Ne6 Rb4 Ng7 Rd4 Bh7 Rd3+ Ke2 e3 Kf3 Ne4 Kg4 e2 Kf5 e1B Kg6 Nc3 Nh5 e4 Rg4 e3 Nc4 e2 Ne5 Bb2 Qg3 Bf2 Bg8 e1N Nd7 Ba7 Nb8 Nf3 Qf2 Bc2 Rf1 Nb1 Qe1+ Be5 Rg5 Ke6 Rg3 Bfc5 Nf5 Rd4 Rg4 Be4 Rg5 Bc7 d3 Nfd2 Rg4 Rc4 Rg5 Rc1 f8Q+ Ke5 Qh6 Rd1 Qh7 Nb3 Kh6 N3d2 Nfg7+ Kd6 Rg6+ Ke7 Bf7 Rg8 Qh8 Rf8 Kh7 B7d6 Be6 Bc7 Bg8
rr6/PbpR2Br/Q7/1bP3kr/1n2B2P/b1KBp2n/R1Nn1bb1/4Q2q b - - 0 1 illegal: No possible last move
3Q1K2/2Q2nn1/5rBk/p1p1b1bq/3r2Bn/P1P1bP1n/bN2nRr1/1R1B4 b - - 0 2 legal: proof: h4 e5 e4 g5 d4 exd4 e5 gxh4 e6 b5 a3 b4 Nc3 f6 Na2 b3 Bf4 bxa2 Be5 fxe5 Kd2 h5 Kd3 c5 Kc4 d5+ Kb5 a5 g4 e4 b4 h3 g5 d3 f3 d2 e7 Kf7 e8B+ Kg7 g6 d4 Qc1 d1N Qe3 h4 Qc1 d3 Qb1 d2 Rh2 e3 Bd7 e2 Bg2 e1B Bf1 Nc6 Rg2 h2 Qb3 h1N Bf5 h3 Rg5 h2 Rg3 Nd4+ Kc4 Be7 b5 Kh6 g7 Qd5+ Kd3 Ndf2+ Kc3 Nh3 b6 Ne6 b7 Bf2 b8Q d1R Qc7 Bg5 Rg2 Bfe3 Qbb8 Ra6 B1d3 Ng3 Rf2 h1N Bg4 Nf5 Ne2 Nh4 Rb1 Ng3 Bg6 Rd4 Nf4 Rc6 Nd3 a1B+ Nb2 Ba6 B4h5 Bc4 Bg4 Ba2 Qe8 Qf5 Qed8 Qf7 Bd3 Qh5 Bg6 Ne7 g8B Nef5 B8f7 Neg7 Bb3 Nd6 Ba4 Nf7 Bb3 Rd5 Kc4 Rf6 Kb5 Rg8 Ba4 Rff5 Kc6 Ne2 Bb3 Rd4 Ba4 Nd6 Kd7 Rf6 Ke7 Nf7 Qd5 Rb8 Qdd8 Rbb4 Kf8 Rd2 Nd3 Be5 c3 Rd4 Bd1 Neg1 Rf1 Rg2 Rf2 Ne2 Nb2
1q2N3/1p3Q2/bbn2r1k/1PN1r1N1/1Q4bb/2P1nr1b/1K1bp1P1/1BRR1q2 b - - 0 1 illegal: No proof kernel
2K4Q/2B1Q1P1/r1BN1p1n/4N1r1/3k1R1P/r3nb2/Bp1r1Pbq/2nb1rb1 b - - 0 1 illegal: No proof kernel
3N1nn1/Pk1Bpn2/2b2rQR/r1QRR1qb/br1n1b2/1N2P1P1/2pn3K/8 b - - 0 1 illegal: No extended proof kernel
6qn/nn1B4/p5BR/1nB4K/bbrQ1P2/2pR1n1P/P2q2kQ/1qN2rn1 b - - 0 1 illegal: No possible last move
Kn1Rb1B1/2qp1N2/PN1q1bn1/3nn3/P2qqkr1/3Q3p/3N1R1P/3Q2qr b - - 0 1 illegal: Other
n1Q3n1/q3P1B1/3R2P1/B2b1Qn1/n1pb1pr1/Nn2bP2/k3rq1b/1B1R3K b - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 h4 dxc4 d5 g5 Na3 gxh4 Nb5 e5 Nd4 exd4 g4 Ke7 e4 Kd6 b4 f5 g5 h5 f3 a5 Kf2 c5 Kg2 d3 b5 h3+ Kh2 c3 g6 a3 b6 a4 b7 a2 Ne2 d2 Nf4 c4 e5+ Kc5 d6 Kb4 d7 c2 e6 Kb3 Ne2 a3 Bg2 h4 Bb2 Qc7+ Ng3 Bd6 d8B Na6 b8Q+ Bb7 Qe1 d1N e7 c1B Qa5 Be3 Bd4 Nb2 Bc3 Na4 Rad1 a1N Rd2 a2 Bb4 Bd5 Rf2 Qa7 Qb7 Nc7 Kg1 h2+ Kf1 h3 Rg1 h1N Qbb5 h2 Bh3 Rh4 Kg2 Rg4 Rd2 Nf2 Qc5 Ne4 Rgd1 Ng5 Bc3 Rb8 Bg7 Na8 Rd4 Kb2 Bb6 Nb3 Qc8 a1B Kh1 Ka2 Nf1 Bc7 R4d3 Bad4 Nd2 Bg3 Bd8 f4 Nb1 Rb6 Qac5 Re6 Ba5 Re4 Qf5 Re5 Qcc8 Re6 Rg1 Re5 Na3 Re4 Kg2 h1Q+ Kf1 Bf6 Bg2 Bc6 Qc5 Bd2 Q5f5 Qh4 Rd6 Bd4 Rh1 Re3 Kg1 Bd5 Bf1 Re1+ Kg2 B2e3 Rg1 Bh2+ Kh1 Qf2 Bd3 Re2 Rd1 Nd2 Bc2 Nb3 Bb1+
N5r1/1pk2P1R/p3nn1R/Pq2nPQ1/1Q2nRNq/2b5/b2qqnK1/1B1r4 b - - 0 1 illegal: Other
QnR1q2q/1PqNPb2/b3qbQ1/1B1rB1Np/2pNK3/b7/b1P2k2/1nr5 b - - 0 1 legal: proof: b4 e5 d4 exd4 h4 b5 a4 bxa4 e4 g5 e5 gxh4 Ra3 f6 Re3 f5 Re4 fxe4 Kd2 Kf7 f4 Kg6 g4 d5 b5 a5 e6 c5 f5+ Kg5 f6 Kf4 b6 Kg3 f7 d3 Ke3 d4+ Kd2 h3 g5 h2 g6 a3 g7 a2 Bb2 a1Q Nc3 a4 Nf3 a3 Nb1 e3+ Ke1 d2+ Ke2 a2 Kd3 e2 Qc1 e1Q Ne5 d1B Bh3 Qc7 Nc3 Bh5 Qh6 Ra5 Nc6 Ne7 g8N Kf2 Ne5 Nd5 Nb1 Nc3 Na3 Nb1 Rg1 h1B Nac4 Bd5 Bc3 Qb2 Bg2 a1B Ne3 Ba2 Bc6 Be7 Nf3 Ba6+ Nc4 Bd6 e7 Qe6 Nf6 Rb5 Nce5 c4+ Ke4 Bc5 Rg8 Ba3 Kf4 d3 Ng5 d2 Rc8 d1Q Nd7 Bg6 Qg7 Qh5 Qf6 Rc5 Bb5 h6 Qf5 Rh7 Qe4 Rh8 Qa8 Rd5 f8Q Be8 b7 Rg8 Nf7 Rg1 Ke4 Rc1 Ng5+ Qhf7 Qh8 h5 Qg7 Qf8 Qh7 Bf7 Qh6 Qe8 Qg6 Qf6 Nef3 Qfb6 Bb4 Qbh8 Bd6 Bf6 Be5 Qe6 Nd4
q3QNR1/pB5b/1n2P1nR/P6Q/q4QP1/3p2r1/qbk4K/bqrq2Bb b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 d5 gxf4 d6 h4 Nd2 exd6 Ne4 d5 Ng3 hxg3 Bh3 d4 Bg2 Qe7 Bf1 Qd8 b4 Ke7 e4 Kd6 h4 Ke5 a4 d5 h5 f5 a5 c5 b5 d3 h6 Kd4 e5 Kc3 b6 d4 b7 g2 Kf2 d2 e6 f3 Kg3 f4+ Kh3 f2 h7 f3 Be2 f1Q Bd3 f2 Qa4 d1Q Rh2 Bg7 Nf3 g1Q+ Rg2 Qfe2 Qe8 f1B Qa4 Qa2 Qb5 Ne7 Bg5 Nd7 b8Q Ng6 Ne1 Qda4 Bc2 Bd3 Bb1 Bb7 Rg3 Bh1 Qd6 Nb6 Rf3 Rc8 Nc2 Qd1 Nb4 Rc7 Be7 Qa8 Rf8 Kb3 Qh2 c3 Qf4 c4 Rg8 c2 Qe8 c1B Nd5 c3 Bc5 c2 Ne7 Bb2 Kh2 c1Q Bc2+ Kc3 Bb1 Bf5 Be4 d3 Bg1 Kc2 Bb7 Rc3 Rb1 Ba1 Rb5 Qcb1 Rc5 Bfe4 Rh5 Rc6 Rh6 Bgb2 Rg7 Rf8 h8Q Rc4 Rg8 Rc5 Qc7 Rf3 Qf4 Rg3 Qh7 Nh8 Qhf7 Bh7 Ng6 Rc6 Nf8 Ng6 Rh4 Kb3 Rh6 Rc1 Q7f5 Kc2 Qh5
3Qq1QR/1KB1n3/nRn3RN/2q2qPb/p2P3q/r4p2/P2q3N/kn1r2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 g5 e5 gxf4 g5 d6 Bd3 dxe5 Bf5 e4 Bg4 hxg4 Ke2 Kd7 b4 Kc6 h4 Kb5 d3 f5 h5 c5 h6 a5 h7 e5 Bb2 g3 Rh6 f3+ Ke3 f4+ Kd2 g2 Kc3 f2 Qe2 Ka4 b5 f1N b6 e3 b7 f3 Rh4 e4 Nh3 g1Q Ba3 Qf6+ Kc2 c3 Nd2 c4 Qd1 e2 Nb1 e1Q Bb4 e3 Rh6 e2 Qd2 Qh4 Qe3 e1Q Qe8+ Nc6 b8Q Qc5 Qb6 Ne7 Rg6 Qff5 Qb8 Nd2 Na3 Nb1 Qb6 Qee6 Kc1 c2 Kb2 c1N Nc2 Nb3 Nd4 c3+ Kc2 Rg8 h8R Bd7 Qed8 Be8 Nf2 Rg7 Ng4 Ra7 Rgh6 Bh5 Qbb8 Qeg6 Qbc8 Qe8 Nh2 Rg6 Ba3 Rd6 Rg6 Rdd7 Bc1 Rd5 Be3 Ka3 Bf4 Rdd7 Bc7 Bg7 Ne2 Bd4 Ng3 Rd6 Qe6 Bg1 Qg8 Rd5 Ng4 Rd6 Nf1 Rd5 Nfh2 Ra8 Kd1 Kb2 Nh6 Ra7 Bg3 c2+ Ke1 Qhc4 Bc7 Qh4+ Kf1 Na3 Re1 Nb1 Ree6 Ka1 Ref6 Nb4 Rb6 Na6 Bd6 Nd4 Bc7 Ndc6 d4 Re5 Rg7 Re3 Rg6 a4 Bg3 Ra3 Ke1 Nc3 Kd2 Rc7 Be5 Qe6 Kd3 c1Q Bg3 Qf6 Bf4 Nb1+ Ke4 Qd2 Rb8 Na7 Qb3 Qca5 Rb6 Rc1 Qbd5 Qac3 Qg8 Qff8 Ke5 Qf5+ Kd6 Nac6 Bg3 Rd1 Bf4 Nc5 Kc7 Na6+ Kb7 Qcc5 Bc7
3Qbr1n/P1R1p2q/Np2k1q1/2Pb2q1/3R1q2/KPq5/2b2Nrb/3BnQ1N b - - 0 1 legal: proof: h4 c5 e4 g5 d4 gxh4 e5 cxd4 e6 a5 b3 a4 Be3 a3 Bf4 fxe6 Be3 e5 Bc1 e4 Bb2 axb2 Kd2 Kf7 f4 d5 g4 h5 c4 e3+ Kc2 e2 a4 e1Q f5 b6 g5 h3 c5 h4 f6 h2 a5 h3 g6+ Ke6 f7 Na6 g7 Qd6 Qd2 d3+ Kc3 d4+ Kc4 Bd7 Qf2 d2 Qf3 d1B Qf4 d3 Ne2 d2 Qh4 Nb4 a6 Qf4+ Kc3 Bc2 a7 d1Q+ Nd2 b1Q Bg2 Nh6 g8Q Nd3 Qf2 Qdc1 Ng3 Be8 Ra4 Bg7+ Rd4 Be5 Qf1 Rb8 Qf8 Rg8 Bf3 Rg4 Rg1 h1B Bd1 Bd5 Nh1 h2 Rg3 Qee3 Ne4 Ne1+ Kb4 Qef3 Rg1 Rg2 Nef2 Qg5 Qh8 Qcf4 Ka3 Qc3 f8N+ Kf7 Ng3 h1Q Nd7 Ke6 Qf8 Rd8 Nb8 Nf7 Na6 Qh7 Rh1 Nh8 Rh6+ Qff6 Ngh1 Bh2 Rh3 Rb8 Rhd3 Qff4 Rd2 Bb5 Qd8 Bd7 Qc7 Rf8 Qd8 Be8 R2d3 Be4 Rd7 Bd5 Rc7 Qgg6 Rd4 Qbc1+ Ka2 Q1d2 Ka3 Qfg5 Ng4 Qdf4 Ngf2
1n4K1/1bQ2pB1/pQ1b3b/rN1P1P1b/1Bb1q1R1/3rN2r/P1k5/B2qr2n b - - 1 2 illegal: No proof kernel
7N/1nbn1Q1r/1q1kb3/P5Rp/1r3b1P/1Q1B3N/qqb1KPqp/N2r2R1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 h3 fxe4 Qd2 g5 Qd1 g4 Bg5 Qa5 Bf4 Qd8 Bh2 g3 Be2 gxh2 Bd3 Nc6 Bf1 Nb8 g4 d5 a4 Kd7 c4 e5 h4 h5 c5 b5 c6+ Kd6 g5 b3 a5 d3 g6 e3 g7 d4 c7 e2 Kd2 e1Q+ Kc1 b4 Bg2 e4 Ra4 d2+ Kb2 e3 Bf3 d3 Bg4 e2 Ra3 Nf6 g8N Ne8 Nf3 Qf1 Ng5 e1B Ne6 Qg2 Ng7 Nd7 Qe2 d1B Kc1 Rb8 Rg1 Bc2 Nd2 Rh7 Ne6 Bh6 Qe4 Bf4 Qc4 Qf6 Qb5 Qd4 Be2 Qb6 Ng5 Be5 Nf1 Bf4+ Ne3 Bc3 Qc4 Bce5 Kd2 b2 Nh3 b1Q Qb3 Qa2 Ne7 Qb2 Qf7 b3 Ng6 Qa2 Ke1 b2 Nh8 b1Q+ Kd2 Qba1 Rc3 Q1b1 Rc5 Q1b2 Bf1 Rb7 Ke1 d2+ Ke2 d1R Rb5 Bg7 Rg5 Bge5 Qb3 Nc5 Qf7 Be6 c8Q Nf6 Qcg8 Nfd7 Qb8+ Qc7 Qbg8 Rb4 Qb8 Nb7 Qbg8 Bg6+ Nc2 Qb6 Qb8+ Kc6 Qbg8 Bc7 Qb8 Kd6 Qbg8 Bd2 Na1 Bc2 Qb8 Bf4 Qbg8 Bef5 Qb3 Be6 Qf7 Rd3 Ke1 Rd2 Bd3 Rd1+ Ke2
k3n3/1PRK4/qQnQ4/BN4p1/2N2r1p/nb2rrqP/4b1RP/nr1R2b1 b - - 0 1 illegal: Other
1q6/5pbR/1P3PbB/Kn1b3N/1n1r1nBr/b1Bnk2N/2q1rpP1/1Q4Q1 b - - 0 1 illegal: No proof kernel
2N4n/Kb1r1p2/Nr1r3q/k1nB1B2/Pbp1P1rq/q1P3q1/QnQ5/B6R b - - 0 1 legal: proof: b4 e5 a4 a5 d4 axb4 f4 exd4 g4 g5 Ra3 gxf4 g5 h6 Rg3 h5 Rg4 hxg4 Kf2 d5 h4 Kd7 e4 Kc6 c3 Kb6 g6 c5 g7 c4 h5 g3+ Kf3 b3 h6 d3 h7 g2 Qd2 d4 Ba3 b2 Nh3 g1Q Qg2 d2 Qg4 d1N Rh2 d3 Rg2 d2 Rg3 Ra6 Qh4 Ne7 Qh6+ Ka5 Be2 b5 Nf2 b4 Qh2 b3 Rh3 Ng6 Nd3 Bb7 Nb4 Rg8 h8Q Rd6 Na6 Nd7 Qh4 Qdg5 Q4f2 Qh4 Qhg2 Nh8 Rh1 Be7 Bf1 Nc5 Be2 Rgd8 g8B R8d7 Bh7 Qgh2 Bf1 Q2g3+ Ke2 Qh6 Bf5 Rg6 Be6 Rg4 Bd5 Qgh4 Qh2 Bf8 Bh3 f3+ Kf1 Qg3 Qfg2 f2 Ke2 Qgh4 Kf3 f1Q+ Qf2 Rg7 Bf5 Qe1 Qe2 Rg4 Qd3 Nf2 Qc2 d1R Qg2 Nfd3 Qge2 Qg7 Ke3 Qgh6+ Kd4 Qhg3 Nd2 b1R Nf3 b2 Ne5 Qgh4 Ng6 Qeg3 Qg2 Ra1 Qge2 b1Q Bb2 Qbc1 Ne7 Rb1 Ba1 Qa3 Nc8 Rb6 Qa2 Bd6 Qec2 Nb2+ Qd3 Rb4 Bc6 Ne6+ Kd5 Ba8 Qd2 Rb8 Bb7 Bb4+ Kc6 Nc5+ Be6 Rd8 Qc2 R1d6+ Kc7 Q4h5 Bc6 Qhh4 Bcd5 Rbb6 Bf5 Bb7 Kb8 R8d7 Ka7
2q1nkn1/P1Rnb1p1/B3p1b1/1q2Br1Q/1R3bP1/4bBP1/1r2Q1K1/3r2nN b - - 0 1 illegal: Other
n1r3N1/pb2R3/Q2r1Bqr/n2Rpq1k/5q2/2nB1Pb1/PK4P1/Q1Rrn3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxe4 h5 bxc4 h6 f5 Be2 e3 Nc3 gxh6 Bd3 h5 Ne4 fxe4 Bf1 h4 b4 Kf7 d4 Kg6 b5 h5 d5 c5 b6 c3 d6 e2 f3 c4 d7 c2 Kd2 e1N Kc3 e3 b7 e2 Qd4 h3 Bg5 c1N Qd6+ Nf6 Qa3 h4 Rh2 Ne4+ Kb2 c3+ Kb1 c2+ Kb2 Nc3 Qc5 Qa5 d8R Rh6 Qd5 Kh5 Qe5 Na6 b8Q Rd6 Qb7 Nb3 Qe3 Qf5 Qf2 Na5 Qc7 Bb7 Rb1 c1Q+ Ka1 Qcf4 Qc6 Nc7 Rc1 Rc8 Re8 Na8 Qd4 e5 Re7 Bh6 Rh1 h2 Qa6 h3 Bf6 Bg5 Rd1 Bh4 Kb2 Bg3 Rd3 Nc2 Rd2 e1Q Bd3 Qee4 Ne2 Ne1 Qg1 Qg6 Nd4 Qff5 Qf1 Qef4 Rg1 h1R Nc6 Nc2 Qd1 h2 Qa1 Ne1 Rf1 Rg1 Rd1 h1R Rc1 Nd5 Rc5 Nc3 Rd5 Nc2 Rc1 Rd1 Rc7 Ne1 Ne7 Rh4 Ng8 Rh2 Bg7 Kg5 Rf7 Rh6 Re7 Kh5 Bf6
3n3K/3n3N/p1p1n1Qq/1b3Rb1/1BP2RNk/b3QrbP/1nP1r3/5bQb b - - 0 1 illegal: Other
2QB1n1k/8/1pn3Rp/3Nn2r/n1P1rP1B/3qb2P/1n1nn1n1/Q1Nb1B1K b - - 0 1 legal: proof: e4 a5 b4 axb4 a4 f5 g4 fxg4 e5 c5 e6 c4 Ra2 dxe6 Ra3 e5 Re3 e4 Rb3 cxb3 f4 Kf7 Kf2 g5 Kg2 Kg7 c4 e5 d4 g3 a5 e3 d5 g4 h3 b2 a6 b6 d6 b3 d7 e2 a7 e4 Rh2 e1N+ Kh1 e3 Qd6 e2 Qd3 Ng2 Bd2 e1N Nf3 Nc6 Qc2 Bc5 Ng1 Be3 Qc3+ Nf6 Qb4 Nd3 Na3 b1N Bc3 b2 Bd2 Nc3 Nc2 b1N Bc1 Nb2 Nd4 Nca4 Qa5 Nd2 Qe5 h6 Qe6 Nh7 Nc2 Re8 Na3 Nf8 Qf7+ Kh8 Nb5 Re4 Ne2 Bb7 Nbd4 Rc8 a8Q Rc7 Qa5 Rc8 Qc3 Ra8 Qg6 Ra5 Qe8 Rh5 Nc2+ Nd4 Qd3 Ne1 Nb4 Bc8 Rg2 Nb1 Rg1 g2+ Kh2 Nc6 Rh1 g1N Qa3 Ngf3+ Kg3 Kg7 Bd2 Nfe5 Kh2 Kh8 Rg1 g3+ Kh1 g2+ Kh2 N1d3 Be1 Nd2 Bh4 Ne1 Qa1 Nc2 Nc1 Ne1 Rh1 g1N Qe6 Qc7 d8B Qd7 Qg4 Qd3 Nd5 Be6 Qg6 Bg4 Qf5 Bd1 Qc8 Ne2 Rg1 Nac3 Rg3 Nca4 Rg6 Ng2 Kh1
1r1q1N1R/P2Ppbnr/2Q5/B3RBnp/2nr4/nbK5/6bP/r1b2kQB b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Nc3 d5 Nce2 dxc4 Nf4 gxf4 g4 Kf7 a4 Kf6 d4 Kg5 Kd2 Kh4 d5 h5 f6 c5 d6 b5 g5 b3 a5 f3 a6 b2 g6 b1N+ Kc2 e3 a7 b4 f7 b3+ Kb2 f2 g7 e2 Bd2 e1N Bb4 c3+ Kc1 c4 Qd5 b2+ Kd1 c2+ Ke2 c1R Qd3 c3 Bg2 f1B+ Ke3 c2 Kd4 Nc6+ Kc4 Rh7 Ra4 Rd1 Ra2 c1R+ Bc3 Be6+ Bd5 Nf3 d7 Ng5 Nh3 Nh6 g8B Nf5 Ra5 Ng7 Nf4 Rb8 Rg1 Bg2 Qe3 Kg4 Rb5 Ne5+ Kb4 Nc4 Ng6 Rd2 Bb7 Rcd1 Re5 Nba3 Kb3 b1B Ba5 Bc2+ Kc3 Ra1 Rf1 Rh8 Bh7 Rd4 Bf3+ Kh3 Rb1 Ra8 Rb8 Bb3 Bd5+ Bf3 Bb7 Kg2 Be4 Kf1 Bd5 Be2 Bh1 Bf3 Rc8 Bg2 Rb8 Nf5 Rc8 Bg7 f8Q Bh6 Qf6 Rb8 Nf8 Bf7 Qc6 Ng7 Bf5 Rh7 Ng6 Qb6 Rh8 Qd8 Nf8 Nf3 Qee4 Bc1 Qe3 Ng5 Qg1+
BK1n4/1R1p3n/1b4N1/knn1rr2/b1QPP2Q/r3b1B1/2pP1r1N/qQ3b2 b - - 0 1 illegal: Other
b2r1R1N/p2rnp2/bP2r2k/1Bbn4/r1Q5/P3P2q/Rnb2KQ1/B1n2B2 b - - 0 1 legal: proof: f4 b5 g4 g5 c4 gxf4 d4 bxc4 Nc3 e5 Ne4 exd4 g5 h6 Nf2 h5 Ng4 hxg4 b4 c5 h4 d5 a3 g3 e3 c3 g6 d3 g7 d4 b5 d2+ Ke2 c2 h5 d3+ Kf3 c4 h6 c3 h7 g2 b6 Bb7+ Kf2 f3 Rh2 Nc6 Rh5 Nb4 Rb5 Qc8 Nh3 g1R Ra2 Rg4 Nf4 Ne7 Qe2 d1B Ke1 d2+ Kf2 Nbd5 Nh3 Ra4 Kg1 f2+ Kg2 Rg8 Bb2 c1N h8Q c2 Qh4 Nd3 Ng5 c1N Qb4 Bc2 Nf3 d1R Ba1 Nb2 Rc5 Qf5 Qg4 Rd8 Rc8 Ba8 Nh4 Qd7 Qg3 Qh3+ Kf3 Rh8 g8B Rh6 Bh7 Re6 Qc4 Rd2 Ng6 Rd3 Bg2 f1B Kf2 Be2 Nh8 Rd2 Qcg4 Ba6+ Qe2 Rd3 Bf1 Ng6 Qe1 Nf6 Rc5 R8d5 Rc7 Bc5 Qf3 Kf8 Rc8+ Kg7 Qee2 Kh6 Rf8 Ne7 Qg2 Rd8 Qeg4 R3d5 Bhd3 R5d7 Bb5 Nfd5 Qc4
1Rnk1bB1/br1Np2p/4Q2r/4B1pP/1bb2QP1/5P1q/bRK2n2/1Q1n2r1 b - - 1 2 legal: proof: d4 c5 Kd2 cxd4 b4 f5 e4 fxe4 b5 d3 Kc3 e3 Kd4 a6 Nc3 axb5 Nce2 dxe2 Kd3 b4 h4 e1B g4 b5 a4 d5 c4 g5 h5 e2 a5 b3 c5 d4 a6 b2 a7 b1R c6 b4 c7 b3 Nf3 b2 Bd2 Ba6+ Kc2 d3+ Kb3 Nf6 c8Q Ne4 Ng1 Bc4+ Ka4 Nd7 Bc1 d2 Rh2 Nb6+ Kb4 Rb8 a8Q Rb7 Qe6 Rg8 Nf3 Rg6 Ne5 Rh6 Nd7 Nc8+ Ka4 Qb6 Qb8 Kd8 Qf4 Qe3 Ra2 Qg3 f3 Qh3 Ra3 Bh4 Rb3 e1B Qc2 d1N Bd2 Ndf2 Bc3 Nd1 Be5 Bhf2 Qd3 Rc1 Qb1 Ba7 Ka3 Nef2 Be2 Rc7 Rb8 Rb7 Bd3 Ba5 Bg6 Be1 Bf7 Bb4+ Ka4 Bac5 Bg8 Ba7 Qa2 b1B Qa1 Bba2 Qb1 Ne3 Rg2 Rg1 Rh2 Bd2 Ka3 Bb4+ Kb2 Ned1+ Kc1 Nh1 Rb2 Nhf2 Kc2
N3r2k/brb2b1n/4bPp1/2Bq3P/pnR1b2p/r7/n1Q1NK1P/4QB1B b - - 0 1 illegal: Other
NQ4K1/nP2R1R1/rr1pr1R1/6pr/r2PQ1b1/4B3/qkpP1nn1/b2Nb3 b - - 0 1 illegal: Other
2r2Bb1/2rP2rb/1R1bp2n/2BN2p1/KQ2Qnp1/1B4R1/1bn1P2P/1q1b3k b - - 0 1 legal: proof: c4 a5 g4 f5 b4 fxg4 c5 axb4 c6 h5 Nc3 h4 Ne4 dxc6 Ba3 c5 Bc1 c4 Ng3 hxg3 a4 Kf7 d4 Kg6 Kd2 Kg5 Kc2+ Kh4 f4 c5 f5 g5 d5 b5 f6 g2 d6 c3 Kb3 c4+ Ka2 c2 f7 b3+ Ka3 c3 a5 b2 a6 b1B a7 b4+ Kb3 Na6 Nf3+ Kh3 Be3 c1B Bc5 c2 Ra3 Rh7 Bg1 Qb6 Ne5 Bb2 Be3 c1R Bd2 Nh6 Ng6 Rc7 Be3 Bc2+ Ka2 Rg7 Qd4 Bd1 Rc3 Be6+ Qc4 Rac8 a8Q Qb8 d7 b3+ Kb1 Qb6 Qae4 Nb4 Qb5 Nc2 Qbb4 Ba1 Rg1 b2 Rb3 Bd5 Ka2 Qb8 Qbc4 Qb5 Rb4 b1B+ Kb3 Bb2 Nf4+ Kh4 Bc5 Bf6 Qg6 Ne3+ Ka3 Bbe4 Bd6 Nc2+ Kb3 Bd3 Rh1 g1N Bg2 Nh3 Rg1 Be5 Qe6 Bh7 Bc5 Qb7 Ka4 Ba1 Nh5 Nf4 Nf6 Qb8 Bh1 Kh3 Qd4 Bc4 Bd5 Bc3 Qee4 Ba2 Rc4 Qb1 Rb4 Bb2 Rb6 Bc4 Be6 Bd5 Qb4 Bc4 Rf1 Bd5 Rf3+ Kg2 Qf5 Kh1 Rg3 Be4 Bb3 Bg8 Qh7 e6 Nd5 Bd6 f8B Bd3 Qf5 Be4 Qe5 Beh7 Qee4+
3n1r2/p1P3K1/4p1p1/N3PbR1/2qQQ2P/1k1bQnNb/1BqRbb2/1n1r4 b - - 0 1 legal: proof: f4 c5 a4 b5 g4 bxa4 d4 cxd4 f5 Nc6 g5 Nb8 Bg2 g6 Be4 gxf5 g6 f4 g7 Qb6 Bd3 Qd8 Bg6 hxg6 Kf2 d5 Kf3 Kd7 Kg4 Ke6 Kg5 f5 e4 f3 h4 d3 c4 a3 b4 d4 b5 f2 c5 f1B c6 a2 b6 d2 b7 f4 e5 Kd5 c7 Kc4 Qg4 d1B Ne2 d3 Nec3 d2 Qh5 f3 Ba3 f2 Qf3 Qd4 Bb2 Bf5 Bc1 e6 Nd5 Bde2 Rh3 d1N Bd2 Nh6 Kf6 Nc6 g8Q Nd8 b8Q Nhf7 Qe3 Ng5 Qb2 Nf3 Rh2 Bc5 Ne7 B1h3 Bc3 f1B Nc6 Qg4 Qf7 Rf8 Kg7 Bed3 Qc2 Bfe2 Bb2+ Nc3 Na5+ Kb4 Qd1 Qc4 Nd2 Nb1 Nf1 Rb8 Qe4 Bf2 Ng3 Rb5 Qf6 Rd5 Qg5 Rd4 Qge3 Qc2 Nb7 Kb3 Qdd2 Nc3 Rf1 a1Q Rg1 Nb1 Rhg2 Qa6 Na5+ Ka2 Qb4 Rd6 Qbd4 Qac4 Nb7 Kb3 Rd1 Ra6 Rd2 Ra1 Rg1 Nc3 Rg2 Rd1 Rg1 Nb1 Na5+ Ka4 Nf1 Kb4 Rg5 Ka4 Ng3 Kb4 Nb7 Kb3 Na5+
2q2rN1/1q1p1R1Q/RP1p1N2/N2rb2b/k2p2Br/Pb1P4/3QK2n/nr1r4 b - - 0 1 illegal: No proof kernel
q5R1/1B2kq1P/2qq3b/pq1p1R1B/Pn1Rrn2/2p1nbK1/3P2Q1/1Q4Nr b - - 1 2 legal: proof: f4 g5 c4 b5 f5 bxc4 b3 g4 f6 g3 Ba3 exf6 Bc1 f5 Bb2 f4 Qc1 h6 Kd1 Bd6 Bd4 Kf8 Nc3 Ba3 Bf2 gxf2 g4 Bb4 Ne4 Bc5 Ng5 Ke8 Qc2 Be7 Kc1 Bf8 Qd1 Bg7 Nh7 Bf8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Bg2 Ke8 Bh3 Rh5 Bf1 Rh8 h4 d5 a4 a5 e4 f5 b4 c5 b5 c3 h5 c2 e5 f3 e6 c4 e7 f4 g6 g3 b6 g2 g7 Na6 b7 Nf6 g8B Bg4 b8R Nb4 h6 Nh5 Be2 f1N Rh4 f2 Be6 f3 Bc8 Qd6 Qe1 Nf4 Rb7 Ne3 Bf5 f1Q Bc8 f2 Rb8 Bf3 Bb7+ Kf7 e8Q+ Kf6 Nh3 g1Q Qe4 Qg8 Ng1 Ra7 Qg6+ Ke7 Qg2 Bg7 Rf8 Ra6 Rf6 Qa8 Rf5 Re8 h7 Bh6 Bd1 Qd3 Ra3 f1Q Rg4 Qde2 Rd3 Rc6 Rd4 Qd3 Rfg5 Qf5 Rg3 Qf7 Rf5 Rb6 Rg8 Ra6 Kb2 Rb6 Kc3 Rb5 Rd3 c1Q+ Kd4 Qc2 Be2 c3 Qd1 Qc6 Ke5 Qc1 Qc2 Qa3 Rd4 Rb6 Bd1 Qfb5 Rh8 Rg8 Be2 Rg4 Rg8 Rh4 Qb1 Rh1 Bc8 Rb8 Bb7 Re8 Bd1 Be4 Bg4 Bf3 Bh5 Na6 Rfg5 Ne2 R8g6 Rg8 Qd1 Qac5 Rf5 Nb4 Rg3 Rg4 Qb1 Nf1 Rf6 Re4+ Kf5 Q5d6 Rg8 Bg7 Kg5 Ne3 Rf5 Nf4 Nh3 Qcc4 Kh4 Bh6 Kg3 Qcc6 Ng1
8/2RnQ2B/N2b2K1/b2qpQnn/1r1n1pP1/2p3P1/rQN1nPR1/1k1b1q2 b - - 0 1 illegal: Other
4bnq1/Nbp3B1/p1bk1q2/1nPr4/1pr1P1Q1/b7/3N1RRP/bn1Q2RK b - - 0 1 illegal: No possible last move
4nK2/qRp1Q1pb/2pb2RN/B1n1k3/2P3r1/1n5r/n3P1RP/NqQnq3 b - - 0 1 illegal: No possible last move, all moves rejected
3rbr1b/1n2B1bp/pq4P1/4RP2/2n1Q1r1/Pb4pK/R4bN1/1kRB1q1Q b - - 0 1 legal: proof: g4 b5 e4 g5 c4 bxc4 h4 gxh4 Nc3 d5 g5 dxe4 Nd5 f6 Ne3 f5 Ng4 fxg4 f4 Kf7 Kf2 Kg6 Kg2 Kf5 d4 c5 b4 e5 d5 e3 g6 Ke4 a3 e2 b5 e1B f5 g3 b6 a6 b7 c3 d6 c4 d7 c2 Rb1 c3 Rh3 Ne7 Bd2 c1R Rb6 c2 Rh1 Nd5 Nh3 Nc6 b8R Na5 Bh6 Ne3+ Kg1 Bg7 Qd2 Rf8 Rd6 Qb6 d8Q Bd7 Qf2 Nb7 Qc8 Bc3 Nf4 h3 Ne6 Nc4 Qcc5 h2+ Kg2 Be8 Be2 Ba1 Re1 h1B+ Kh3 Rd1 Qc8 c1Q Rd5 Rd4 Bd1+ Kd3 Bg5 e4 Qf3+ e3 Re5 Rg4 Qe4+ Kc3 Rf1 Kb2 Rf2+ e2 Be7 Qf4 Rg2 Qf1 Nf4 Kc1 Qc5 e1B Qg1 Bf2 Rc8 Kb2 Rc6 Rd8 Qh2 Nca5 Rc3 Nc4 Rc2+ Kb1 Qg1 Qe2 Rh2 Bf3 Qh1 Qf1+ Ng2 Bh8 Ra5 Bag7 Rd5 Be2 Re5 Bd3 Ra2 Bc2 Qd4 Qe1 Nf4 Bg1 Qde4 Bd4 Rd2 Bf2 Ng2 Qf1 Re2 Rd3 Rd2 Bb3 Rdc2 Rd8 Rc1+
QR2B3/r1Q3Kp/2Q1p3/k1r3N1/P1b3qb/1r1r1q1P/rp1PN3/qn4Bn b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 e4 dxc4 f4 f5 Ra3 fxe4 f5 g6 Rf3 g5 Rf4 gxf4 Kf2 Kd7 g4 Kc6 g5 Kb6 g6 c5 g7 b3 h3 e3+ Kf3 e6 Ke4 b2 Ke5 c3 f6 c4 f7 e2 Qe1 c2 Rh2 c3 Bg2 f3 Rh1 f2 Bc6 f1Q Qh4 e1Q+ Ne2 Qf3 Bd7 Na6 Bb5 Nf6 g8Q Nd5 Qg6 Nab4 Qg2 Be7 f8Q Nd3+ Kd4 Ra7 Qg1 Ka5 Qhf2 Bh4 Ba6 b5 Qg4 b4 Ng1 b3 Qe8 Qg5 Qc6 Rd8 Qgg3 Qgg4+ Qf4 Bd7 Qg3 Nf2 Qg2 Qed1 Qa8 Bb5 Ke5 Bc4 Ne2 Qf1 Rg1 Nh1 Bb5 Qe1 Be8 Rd7 Na3 b1R Bb2 c1R Nb5 c2 Nd6 Nc3 Nf7 Rd3 Ng5 Ra1 Kf6 Nb1 Ba3 b2 Bc5 Ra2 Rf1 Qd1 Bg1 Rb3 Rf2 Qf1 Qc6 Re1 Qa8 c1R Qc6 Rcc3 Qa8 Rd3 Qc6 Ra6 Kg7 Rc1 Qb8 Rcc3 Qgg3 Ra7+ Qgc7+ Rb6 Qba8 Rb3 Q7b7 R6b5 Qe7 Rc5 Qeb7 Q3g2 Rf8 Q2f3 Qbc7+ Rb6 Qab7 Nc3 Bd7 Qa1 Qa8 Nb1 Rc8 Rf5 Rb8 Rc5 Q7b7 Rb4 Be8 Rbb3 Qbc7+
1Bb2n2/r3r2R/pq3P1q/3K2b1/QbPQ2b1/3p1pqR/rRN2P2/k2n3N b - - 0 1 illegal: Other
N5n1/q1p1bk1N/1B3R1n/Rr2qq2/1pP1Q1N1/1K2p1nb/3rP1P1/Q4r1r b - - 0 2 illegal: No proof kernel forced: bxLB
q3B1r1/2Np2Pr/3Pq1QP/bKR1k3/Q4pqr/NRpn4/5nbn/2Q4n b - - 0 1 illegal: No proof kernel
3Br1Bq/bN1K4/2Qp1P2/R2PR1p1/3p2rk/1rbn1q2/bP1B4/1Q1bn2n b - - 0 1 illegal: No proof kernel
B1q5/2B1KNp1/4b3/2Q2PPQ/rrBb1Pp1/n2Nnkr1/1q3p1R/1nn2q2 b - - 0 1 illegal: Other
1Bn1Q3/P1qRrR1n/1r1p1Qr1/2b1p1q1/1b1Pq1RP/k4Nr1/pN6/K2b4 b - - 0 1 illegal: No proof kernel
3K1n1k/1R4Pb/2Npq2q/1br2b2/1pB1pbR1/Qn2rPNn/1P4N1/1r5Q b - - 0 1 illegal: No possible last move, all moves rejected
Q1Rq4/qRb2r2/1qnPk1Kp/1P1br3/1ppBn3/1N1R3P/q4r2/1n1Q3N b - - 0 1 illegal: No extended proof kernel
k1br4/1rn3p1/1rP1n2N/nB1n2R1/1RNP2PQ/K1NqQ3/p2qp3/5bb1 b - - 0 1 illegal: No proof kernel
1NR2b2/Rp1p2pq/qB1q4/r2r1bQ1/P5bn/1Qb3PP/3n2N1/2K1nk1Q b - - 0 1 illegal: Other
1n2Qn1n/N1q5/3Rn3/n3Pr1b/1B1bn2b/4Np1p/1Pp2k1P/KQRQr3 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 f5 b5 f6 bxa4 e3 g4 Be2 exf6 Ra2 f5 Ra1 f4 Bf3 gxf3 d4 Ke7 Kd2 Kd6 Kc3 Kd5 g4 Ke4 g5 f5 g6 a5 d5 h5 d6 c5 g7 a3 d7 f2 Qf1 h4 Qd1 f1N Qa4 h3 Qb3 f3 Qb4 a4 Qa5 a2 Qb5 f2 Qa6 a3 Qa7 f4 Ne2 Kf3 e4 Nf6 g8Q Ng3 e5 f1N Ng1+ Kf2 Qf7 f3 Qe8 Nd2 Qe7 Rh5 Kc2 c3 Qe8 Qc7 d8Q Rf5 Qed7 Nge4 Q8e8 Be7 Qh8 Nh7 Qc6 Nf8 Qg7 Nd6 Qd7 Bh4 Qe6 Nf7 Qg4 Ne4 Qg8 Nh8 Qb7 c4 Qe8 Be6 Qb3 Bf7 Qg7 Bh5 Bd2 Ra7 Kc1 c2 Nc3 Ra4 Rb1 a1N Nb5 a2 Ne2 Ra3 Qa4 Re3 Ng3 Re2 Rd1 Re1 Qg4 Ng5 Bb4 Nge6 Kd2 c1B+ Kc3 Bh6 Qe4 Nb3 Kc2 c3 Nf1 Nbc5 Rbc1 a1N+ Kb1 Be3 Rd6 Bd4 Ne3 Nab3 Na7 Na5 Qd1 c2+ Ka1 Bg6 Qd5 Bh5 Qa2 Ne4 Qb1
1b1rQ1K1/1bBbqPRp/3b4/b4R2/1bp1n2p/1nPnP1N1/R3NQ2/1r2k3 b - - 0 1 legal: proof: d4 g5 h4 gxh4 a4 e5 e3 exd4 a5 f5 a6 f4 Qd2 f3 Be2 fxe2 Qd1 bxa6 Kd2 a5 Ra3 a4 Ra2 Nh6 Ra1 Ng8 Kd3 Ke7 Ke4 Ke6 g4 e1B b4 c5 f4 a5 g5 d5+ Kf3 Kf5 g6 d3 g7 a3 b5 a2 b6 d4 b7 d2 Na3 d3 Ne2 c4 Nc3 a4 Rb1 a1B Rb3 Nd7 b8R Bb7+ Ne4 Ngf6 Rc3 Nc5 Rc8 Nb3 Nb1 a3 g8Q a2 Qe2 d1N Bd2 Nb2 Rf1 Bg3 Be1 d2 Rc7 Nd3 Rg7 Ba3 Bf2 Qe7 Qd8 Bh2 Bg3 B1b2 Qb8 a1B Qf8 Ra5 Qf7 Rd8 Qe8 Bc5 Qg2 Bba3 Rf2 Ke6 f5+ Kd5 Qg1 Ba7 Bc7 Bhd6 Ng3 Bb8 Rf1 Bac5 Qh2 Bb2 Qg2 Ra1 Qg1 Nh5 Kg4 Nf6+ Kg5 Bb6 Rf3 Ba5 Qf2 Bba3 Rf4 B3b4 Rf3 Nd4 Ra3 d1B Ra2 Ke5 Rf4 Bg4 Nc3 Rb1 Rf3 Nb3 Rf4 Nd7+ f6 N7c5 Rf3 Bd7 Rf4 Nb2 Nce2 Kd5 c3 Ke5 Nf1 Kd5 Rf3 Ke4 Nfg3+ Kd3 Rf5 Kd2 Kh6 Qe6 Rgg5 Qe7 f7 Ne4 Kg7 Kd1 Kg8 Nd3 Qf4 Ke1 Rg7 Ndf2 Qf3 Nd3 Qf2+
3q4/1p1bN2N/nNb2pn1/bk1nQ3/p1bQb3/1PPr1P2/5BK1/r2R1Rb1 b - - 0 2 legal: proof: g4 c5 a4 h5 d4 hxg4 e3 cxd4 a5 Qxa5+ Nd2 e5 Bh3 Qa2 Bf1 e4 Bd3 exd3 Nb1 Rh4 Kd2 Rh3 Ke1 Rh8 Kf1 d5 h4 Kd7 b3 Kc6 e4 g5 c3 a5 h5 g3 e5 d2 h6 g4 h7 f6 e6 d3 e7 d4 e8N Kb5 Rh2 Bb4 Qf3 d1B Ne2 g2+ Kg1 d2 Qe4 d3 Bb2 Bc2 Qe3 d1B Qh6 d2 Ba3 Ne7 Nf4 Bf3 Nd3 d1B Qh4 Bde2 Rh1 Ng6 Nf4 Bc4 Nd2 Bc6 f3 a4 Ne4 Na6 Rb1 Ba5 Nd5 B2d3 Bc5 Qd2 Kh2 g1N+ Bf2 Ne2 Ne7 Nef4 Ng5 g3+ Kg1 g2 Re1 Rf8 h8Q Bg4 Qh2 Rd8 Q8h4 Rh8 Ra1 Rh5 Nh7 Re5 Q2g3 Re1+ Kh2 Bb1 Rf1 g1B+ Kh1 Bh3 Qgg5+ Rd5 Qe5 Qd4 Qg4 Qb6 Qd7 Be4 Qdd6 Bhd7 Rc1 Nd3 Kg2 Qd8 Ra1 Ndb4 Rb1 Nc5 Rc1 Rdd1 Qdd4 Nd5 Rb1 Rd3 Nd6+ Ka6 Ndc8 Kb5 Nb6 Na6 Rb2 Red1 Rd2 Ra1 Rdd1
1Q2nb2/5qpB/1R2pP2/Pr1b3n/N2b1r1Q/2b1PQb1/nNpb2KR/2k5 b - - 0 1 illegal: No proof kernel
Q4bBb/6k1/Pb2Q2r/1p3K2/1N1bp3/Bbnq4/PPp1BNn1/R3r1nb b - - 0 1 illegal: Other
2r3b1/1r1b3B/6pr/1pN3Pr/Rn1Q1QQ1/b1R2Pqb/2PKpr2/2B3kn b - - 0 1 legal: proof: e4 a5 d4 c5 g4 cxd4 b4 axb4 Nd2 f5 Ndf3 fxe4 g5 h6 Ne5 h5 Ng4 hxg4 a4 Kf7 h4 Kg6 a5 Kh5 a6 e5 a7 b5 Be2 d5 Bf4 b3 Bf1 b2 Bc4 b1B Ba2 d3 Kd2 d4 Be3 g6 Rh2 Nf6 Bc4 Nc6 Ra5 Nb4 Ra1 Ba2 Kc1 d2+ Kb2 d3 Kc3 Bd7 Rc1 Qc7 Nf3 g3 Ra1 Kg4 h5 g2 h6 g1R h7 Rg2 Rh6 Rc8 a8Q Nh5 Qc1 Kh3 Qa5 d1R Qb1 d2 Nh4 Kh2 Qb6 Ng3 Qb8 Rh1 Qb6 d1B Kd2 B1g4 Rh5 Bh3 Qf6 Bb3 Qf4 Bc5 Bd3 Bg8 Nf5 Qb8 Bf1 Kg1 Ra4 Rhh2 Ng7 Nh1 Qd1 Bf8 Ke1 Qc7 Bc1 e3 Ke2 e4 Ne6 Bc5 Ke1 e2 Kd2 e1R Bc4 Be7 Nc5 e3+ Kc3 Rf1 Qdg4 e2 f3 Rf2 Kd2 Rb8 Rh4 Rb7 Qe4 Qg3 Qef4 Bd5 Ba2 Rc8 h8Q Bg8 Qhd4 Bf7 Qdf6 Nd5 Qh5 Bhe6 Qc4 Rf1 Nd3 Rff2 Qcc3 Bf5 Rhc4 Ba3 Nc5 Nb4 Qcd4 Rh4 Qfd6 Rgh2 Rc3 R4h3 Q6f4 Bc4 Qhg4 Rh6 Qh3 Bfe6 Qhf5 R2h5 Qh3 Bg4 Qh4 Bh3 Qhg4 Bd3 Bg8 Bc4 Bh7 Ba2 Qh8 Bg8 Qhd4
rn1K3k/R1B3Rb/4Q1r1/1P3rr1/bbp2pp1/2P1NP1b/1qnQbB2/3B4 b - - 0 2 legal: proof: d4 e5 b4 exd4 g4 h5 a4 hxg4 Nd2 b5 Nb3 bxa4 Qd3 axb3 Qd2 Ke7 Qd1 Ke8 Kd2 d5 Kd3 f5 e4 Kf7 h4 g5 h5 Kg7 f3 c5 b5 a5 e5 b2 c3 b1B+ Qc2 g3 e6 a4 e7 f4 e8Q a3 Qe6 c4+ Ke2 g2 Nh3 g1R Qb3 d3+ Kf2 a2 Be2 d4 Qc6 d2 Bd1 d3 Qb2 Nf6 Qe6 Nd5 h6+ Kh7 Rh2 Bb4 Rg2 Rf8 Qc2 Kh8 h7 Rf5 Qb2 Kg7 h8B+ Kh7 Bf6 Ne3 Be5 Nc2 Bc7 Kh8 Rg4 Rg2+ Kf1 Qf8 Nf2 Qh6 Rg3 Qh2 Ng4 Bd7 Ne3 Bc8 Be2 d1B Bd2 Ra6 Be1 d2 Bf2 Rd6 Qf7 Rg6 Qe6 Nd4 Rg4 Ba4 Qc2 d1B Qd2 Bdb3 Bd1 Be4 Rb1 a1R Rb2 Bbc2 Ra2 Bb1 Ra3 Nc2 Ra2 Bb3 Ra7 Rg3 Rb7 Ra8 Ra7 Ba4 Ke2 Rh3 Kf1 Rh5 Rg1 Qh4 Rg3 Bd3+ Kg2 Be2 Rg4 Rh7 Rg3 Rhg7 Rg4 Qh7 Rg3 Qg8 Kh3 Qd8 Kg4 Qd5 Qe1 Qd2 Rg2 Qc1 Qd2 Qb2 Rg3 Rc5 Qd5 Rg8 Kf5 Rf8+ Ke5 Rf5+ Kd6 Rf8 Ke7 Rgg8 Qdf5 Na3 Qfd5 Bh7 Qdc6 Nc2 Qed5 Bh3 Qcd6 Rf6 Qd2 Rcf5 Rg4 Rg7+ Kd8 Re6 Rh4 Ref6 Rh6 g4 Qe6 Rfg5 Rg6 Rff5 Rf6 R7g6 Rf7 Bef1 Rd7 Be2 Rg7
7k/NPrbPKbp/NQ1Qrnp1/2R4p/6P1/1Qq1R2r/2B3n1/rb2br2 b - - 0 1 illegal: No proof kernel
7b/n2K1bnp/3Q1p2/1pqQR2r/Qr5n/1P2RP1P/Br3kNr/1n2B1r1 b - - 0 3 legal: proof: e4 d5 a4 dxe4 a5 c6 Qh5 b6 Qf5 bxa5 Qb5 a4 f3 cxb5 Nc3 g5 Nd1 g4 Nf2 g3 Kd1 gxf2 Ke2 Kd7 Ke3 Kd6 Kd4 a5 c4 e5+ Ke3 Kc5 g4 a3 b3 a2 d3 a4 g5 a3 g6 f6 g7 Be6 h3 Ne7 g8Q Qc7 Qg5 Ra4 Ne2 Rg8 Ng1 Bf7 Qg3 Nf5+ Ke2 Kd4 c5 e3 c6 e4 Qg2 Rg5 Qh2 Rh5 Bd2 Bg7 Re1 a1R Qf4 Qe7 c7 a2 c8Q Bh8 Qa6 Rb4 Qa4 Qc5 Qg3 Ng7 Qd6+ Qd5 Rh2 Rb1 Rg2 a1N Rg5 Nc2 Re5 Na3 Rd1 Ra1 Be1 Nc6 Rc1 Na7 Rc8 Nc4 Rce8 Nd2 R8e7 Rb1 Re8 Kc3 d4 Qc5 d5 Kd4 Qda6 Qe7 d6 Rb2 d7 Qd6 d8Q Nb1+ Kd1 Qd5 Bd3 f1R Qad6 e2+ Kc1 Ke3 Qa8 Qd4 Qad5 Rf2 R8e6 Na3 Bb1 Rh2 Ba2 Qc4+ Bc3 e1N Ne2 Ng2 Nf4 Nh4 Ng2+ Ke2 Re8 Qd4 Be1 e3 R8e7 Kf1 R7e6 e2 Re3 Nc2 R6e5 Qc5 Kd2 Na3+ Kd3 Nb1 Qc4 Qc8 Kd4 Qf8 Kc5 Qc8+ Kb6 Qc5+ Kb7 Kg1 Qcd5 Kf1 Bc3 e1R Kb8 Kf2 Kb7 Qd4 Kc7 Qc5+ Kd7 Rg1 Be1+
q1b2R2/3rnNn1/1Pb1p2n/1pQr2rQ/1P1n1R2/P1R2B1p/2kN1K2/b4b2 b - - 0 1 illegal: Other
6bq/pQ2N1nk/1nNpP1r1/3Rnr2/rP2Q2R/pK3N2/PB2bb2/2r4b b - - 0 1 legal: proof: h4 c5 f4 g5 d4 cxd4 f5 gxh4 f6 b5 e3 exf6 Bc4 f5 Bb3 f4 Ba4 bxa4 Kd2 f5 g4 Kf7 c4 Kg6 Kc2 h5 g5 f3 c5 a3 b3 h3 c6 d3+ Kc3 f2 e4 f1R e5 h2 c7 d2 Kc2 f4 Qf3 d1N Qe3 f3 Nc3 h4 Nd5 h3 Ne2 f2 Ng3 Nf6 Ne4 Nh5 Qf3 Bc5 Ndc3 d6 Qe3 Nb2 Nb5 Ng7 Qf3 Na4 Nbc3 Nd7 Ne2 Nab6 Nd2 Rh4 Nd4 Kh7 Bb2 Qh8 Nc6 Ra4 b4 Ba6 c8Q Rc1+ Kb3 f1R Qe3 Be2 Qb7 Rf5 Qe4 Bf2 Nf3 Rg8 e6 Ne5 Rd1 h1B Rd5 h2 Rb1 Bg2 Ra1 h1B Rb1 Rc5 Rc1 Bh3 Rc4 Bg4 Rcd4 Bh5 Rc4 Bf7 g6+ Kh6 Rcd4 Rc1 Rc4 Rf8 Rcd4 Bg8 Rc4 R8f6 Rcd4 Ne8 g7 Rg6 Rc4 Kh7 Rcd4 Bf7 g8N Ng7 Nge7 Bg8 Qc2 Rg4 Rf4 Rgg1 Qe4 Rg6 Rh4+
3B4/nP1B1rnp/pb4B1/Q1Nn1nKP/RqbP1r2/2r2Qk1/4b1pR/2b5 b - - 0 1 legal: proof: d4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 Nc3 e4 Na2 f6 Nb4 fxg5 Nd3 exd3 Bd2 g4 Be3 Qe7 Bc1 Qd8 Kd2 Ke7 Ke3 Kf6 Kf4 c5 e4 g5+ Ke3 g3 h4 d2 b4 g2 f4 a3 h5 a2 e5+ Kf5 e6 c3 e7 c4 e8B g4 b5 c2 b6 a6 b7 c3 Bc6 g3 Rh4 Qd6 Ba3 c1R Be8 c2 Qe1 d1B Bb4 Ne7 Bfb5 Be6 Rh1 Kg4 f5 Be2 f6 Nd5+ Ke4 Nc6 f7 Na7 Bc3 Qb4 Ke5 Bc5 f8Q Bb6 Qf6 Rf8 Rb1 a1N Qf7 Nb3 Rh2 Nc5 Qff1 Rf4 Nf3 g1N Nd2 g2 Bg6 Raf8 Nb3 R8f7 Qd2 Kg3 Bd7 Nf6 Rb2 B6c4 Ra2 Ne6 Ra4 Ng7 Nc5 Nd5 Qfd1 Qb1 Ba5 Nf3+ Kd6 Nh4 Ke5 Nhf5 Qf1 Bd8 Bc7 Qb6 Qa5 Qb4 Qd1 Be7 Bd8 Bf8 Nb3 Bc5 Qf1 Bb6 Nc5 Ra1 Qd1 c1B Qf1 Ra3 Qd1 Rc3 Qb3 Nc7 Qa3 Re7+ Kf6 Rf7+ Kg5 Nd5 Qb3 Re3 Qd1 Ref3 Qf1 Rc3 Qf3+
2q1b3/PRBk3r/2n1N3/1r1B1p1n/KQn1bp1p/n7/bNP2PQ1/2r1B1b1 b - - 0 1 illegal: No proof kernel
1R6/rp3b2/1n1b2rb/QP1P2p1/N2rkNKB/Bp2P2Q/2B1nq2/5rnn b - - 0 1 legal: proof: b4 d5 a4 a5 c4 dxc4 f4 e5 g4 exf4 b5 h5 Ra2 hxg4 Rb2 Bd7 Rb3 Bc8 Rb4 axb4 Kf2 Kd7 h4 Kd6 d4 Kd5 h5 c5 h6 f5 a5 b3 a6 f3 Kg3 c3 h7 f2 a7 c4 Be3 c2 Qd3 c1N Rh2 f4+ Kg2 c3 Rh3 g3 Kf3 g2 Nd2 c2 Ne4 Nh6 Rh2 Nf5 Nc5 Qf6 Nd7 Bd6 Nh3 g1N+ Kg4 f3 Bh6 Rd8 h8B Ng3 Rg2 Nh1 Qd1 Ke4 Nf4 g6 Rh2 Qf8 Bg2 f1R Bg5 Qf6 Bh3 f2 Bh4 Rg8 Qd2 Rd1 d5 f1R Qc3 Rd4 Bg7 Qf7 Bf8 Rg7 Nh5 Qf2 Nf4 g5 e3 Nce2 Qa5 c1B Be7 Rg6 Bf8 Re6 Nb6 Bca3 Na4 Nd7 Be7 Rg6 Bg2+ Ke5 Be4 Nb6+ Bf5 Bd7 Bf8 Bc6 Bc2 Be8 Be7 Bf7 Bf8 Re8 a8Q Bb2 Q8a6 Ra8 Rh3 Ra7 Rh2 Bc7 Ba3 Bd6 Rh3 Nc4 Qc6 Nb6 Qd7 Ba1 Bg3 Bc3 Rh8 Bcb4 Rd8 Bf8 Bh4 Bh6 Rb8 Bd6 Kh5 Be7 Qh3 Bd6 Bd1 Ke4 Kg4 Rd2 Bc2+ Rd3 Bd1 Rd4 Bc2+
b4rn1/p1R1QBkP/1q6/B2Qbn2/P2r3p/rb3P1K/3R1pn1/1N2bB1n b - - 0 1 illegal: No proof kernel
r4n1q/q3p2N/bRPP1r2/2p4q/n1PQp2k/1Kb1r2N/3Q2rB/1RN1q3 b - - 0 1 illegal: Other
1krr1BK1/4bQ2/1n6/2qB1ppN/Pn1R3q/1NPN1P1b/pbQ1n1b1/7n b - - 0 1 illegal: No proof kernel
1N1qBNr1/2pn2Bk/r1q5/b1PrpP2/3P2K1/7r/bpnnN1RQ/1Qn5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 a4 hxg4 e5 f5 e6 f4 Ra3 dxe6 Be2 e5 Bf1 e4 Rg3 fxg3 Ke2 Kf7 c4 Kg6 f4 e5 d4 b5 h4 g2 f5+ Kh7 a5 g5 a6 b3 a7 g3 h5 g4 h6 e3 Rh3 b4 Rh4 b2 Rh1 b3 Nh3 g1N+ Kd3 e2 Ke4 e1N Nc3 b1R Na2 g2 Qc2 g3 Nb4 Ne2 Bd2 g1Q Rh2 g2 Na6 Nd7 Nb8 Qh1 Ng1 Nc1 Ne2 g1R+ Rg2 Bb4 c5 b2 Be3 Ra1 Qb1 Nc2 Kf3 Ra6 Kg4 Ba5 Bg5 Rd6 Bf6 Rd5 Bg7 Ngf6+ Kg3 Ne4+ Kg4 Kg8 h7+ Kf7 Qa1 Nd2 Qb1 Rg8 h8Q Ba6 Ng3 Bc4 Qh2 Ba2 Bb5 Re1 Ba4 Re3 Ne2 Rh3 Bc6 Rf8 Bb5 Kg8 Ba4 Kh7 Bc6 Nb6 Be8 Rf6 Nc6 Rb8 a8N Nd7 Nb6 Ra8 Nb8 Rf8 Nc8 Rg8 Ne7 Ra6 Ng6 Rdd6 Rg1 Qc6 Rg2 Rd5 Nf8+
Q7/3K1Pb1/1pR1PQb1/4B2Q/2q4p/1P1bN1pq/1R2Nk1r/1n1qrqbn b - - 0 1 illegal: No proof kernel
2n2rnK/B2q3p/Rr2kp1P/1Bb5/1PnPQ2q/3b4/1Qb1p2p/2N1qN1N b - - 0 1 illegal: No proof kernel
NQ4Q1/1B3npp/1R2qP1p/3Pb2P/2bQ1B1q/n1p4k/qr6/rnK1N2b b - - 0 1 illegal: Other
nqN3n1/2bKpbp1/3P2Q1/2bP2PB/3p1q1p/Qr1n1q2/1N3r1B/1N1Rk3 b - - 0 1 illegal: Other
n3Qb1B/2p3q1/2B1b2P/3p4/Kb2Q1pr/N1p1R1rn/1rP2nPk/1N3q1N b - - 0 2 illegal: No proof kernel
2B1Nn2/2R1pQ2/1rpnPBr1/1bK1pQP1/r3P3/2bBk1rq/1N3p2/1n1r4 b - - 0 2 illegal: Other
1N4QR/1r1p3p/bQr1R3/2n2r1n/1N1p4/1prPb3/P1P2q2/nk1KBr1Q b - - 0 1 legal: proof: h4 e5 f4 exf4 b4 a5 h5 axb4 e3 c6 h6 gxh6 Be2 h5 Bc4 h4 Bd5 cxd5 g4 Ke7 e4 Kd6 d3 Kc5 e5 Kd4 g5 f5 g6 b5 g7 b3 e6 h3 e7 h2 e8Q b4 Qf7 b2 Bd2 f3 Qe2 f2+ Kd1 f1N Qee8 f4 Ke1 f3 Bc1 f2+ Kd1 Ra5 Bg5 Nd2 Qe1 f1R Be7 Nb3 Qh5 Na6 Qh3 Nac5 Qh6 Ba6 Na3 b1R+ Qc1 Nf6 g8Q Qb6 Nh3 Nh5 Bh4 Bh6 Nc4 Be3 Rg1 h1R Ne5 Rb2 Rb1 Na1 Nf4 Rb3 Rg4 Rc3 Rg6 b3 Re6 Rh3 Qa3 Rb5 Qa5 Rhf3 Rc1 Qa7 Qad8 Rb7 Qb6 Rg3 Re8 Rg6 Ra8 Rc6 Rb1 Rf2 Qh1 Rf3 Be1 Rf1 Qg6 Rf8 Qg8 Rf5 Rf8 Rc4 Rc1 Bd2 Rd8 Kc3 Re8 Kb2 Rf8 d4 Nd5 Be3 Nb4 Qb8 Rd8 Rc3 Re8 Re6 Nec6 Qh2 Nb8 Rg6 Qge6 Rh6 Rh8 Qf4 Qg8 Rc6 Ke2 Qh4 Rd1 Qf4 Rd2 Qh4 Kd1 Kb1 Rg2 Qf4 Rg6 Qf2 Re6
Rn1b1r2/BN1kQ3/pprq1P1p/4r1r1/PP1B3p/2Bbb2K/5R1n/4Q1r1 b - - 0 2 illegal: No possible last move
B5bb/PB2P3/1nQ1br1N/Kbn3b1/pp5r/4pQN1/P1RkqB1p/6n1 b - - 0 1 illegal: Other
q1r4n/RpR2bp1/3B3n/R3b1rp/1Pn3Pk/QbP1BKn1/Q2p1Nn1/8 b - - 0 2 illegal: No proof kernel
1r4b1/8/1nr1Nk2/nRBR2rq/p1Qn2P1/b2pp1Kp/P1P2Nn1/N1b3Q1 b - - 0 1 illegal: No proof kernel
b2N4/1qR2pQK/n2k2Rb/8/r1B4p/1Q2PP2/1npbp1nP/rR1br2N b - - 1 2 illegal: No proof kernel
5Q1R/3p1p2/1n3brR/5k1p/n2r3B/2bpKPn1/2PBbR1P/2Q1nqNr b - - 1 2 legal: proof: a4 b5 d4 bxa4 f3 g5 d5 e5 d6 e4 e3 g4 Nd2 g3 Bd3 exd3 Ne4 cxd6 Kd2 d5 Nf2 gxf2 Ra2 d4 Ra3 Bg7 Ra1 Bf8 b4 Ke7 g4 Kf6 g5+ Kf5 g6 f1N+ Ke1 h5 Kf2 a5 b5 d2 b6 a3 g7 a2 b7 a4 Rb1 a1B Nh3 a3 Ng1 a2 Rb2 Na6 b8B Qg5 Rb6 Ne7 g8Q Bg7 Ke2 Nd5 Rb2 Rh6 Rb4 Nb6 Bf4 Ng3+ Kf2 Nc5 Ne2 Bc3 Rf1 a1R Ng1 Bf6 Qf8 Ba6 Bd6 Qf4 Be7 Be2 Rb3 d3 e4+ Kg6 e5 Kf5 e6 Rg6 Bd8 R8a4 e7 Rd4 e8R Nca4 Rb2 Qg4 Ke3 Qh3 Rf2 Qf1 Rb4 Rb1 Rc4 Ra1 Rc6 Bh8 Qg8 Qh3 Bh4 Rg7 Rh6 Rg6 Qg7 Qg2 Nh3 Qh1 Qg8 Bf6 Qg7 Rb1 Reh8 Qe1 Qf8 Qg1 Ba3 Ra1 Qb1 Qg2 Qb2 Rh1 Ng1 Qf1 Qb1 Bb2 Bd6 d1N+ Kd2 Ne3 Bb4 Ng2 Qc1 Ne1 Ke3 Ba1 Bd2 Bb2 Qb8 Bc3 Qf8
6n1/n5K1/q1QQqppn/p3N3/5PPP/4bprn/1RrNBN2/4knBb b - - 0 2 legal: proof: g4 b5 d4 e5 b4 h5 f4 c5 a4 cxd4 e3 bxa4 Qf3 e4 Nh3 exf3 Rg1 h4 Rg3 hxg3 Ng1 Qf6 Bg2 Bc5 Ba3 Qf5 Kd1 Nh6 Nh3 Qh5 Nc3 Qd5 Rc1 Qc4 Nb1 Bf8 Kd2 Qc7 Rh1 Bc5 Ke1 Be7 Bf1 Ng8 Bc1 Bf8 Ng1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 a3 Kf5 Kd5 b5 g2 b6 d3 h3 Kc4 c3 d5+ Ke5 g6 e4 d4 b7 a2 Ba3 a1Q Bb2 Qa6 Ba3 Qd7 Bb2 Bc5 Ne2 g1N Rh2 d2 Rg2 Kd3 c4 d1N Ba1 Ne3 Nd2 Nf5 Nc3+ Kc2 Nd1 d3 Rh2 Be3 c5 Nfh6 c6 Kc1 c7 Qdc6 Nb1 d2 Nf2 d1N Nd2 Qcb6 Bd4 f6+ Kd5 Rh7 e5 Nc6 b8Q Bd7 Qf8 Rc8 Be2 Bf5 e6 Bd3 e7 Qb3+ Kc5 Qe6 e8Q Kc2 Qd6 Bb5 Nc4 Kc1 Ne5 Kd2 Rg2 Ke1 Qed7 Bd2 Rh2 Ne3 Rg2 Nf1 h4 Re7 Qe8 Be3 Rh2 Nh3 Qed7 Rd8 c8N Bd3 Qe8 Rc7 Nb6 Rb8 Nbc4 Rb2 Rg2 Rc2 Qc8 Rb7 Qcc7 Rb1 Qcd7 Qc8 Qe8 a5 Rh2 Na7+ Qec6 Qa6 Rg2 Qf5 Kd5 Qe4+ Ke6 Qd5+ Kd7 Qe6+ Kd8 Ra1 Nd2 Rcc1 Nb1 Bd2 Nd1 Ng3 Bf1 Rc5 Nb2 Ra2 Bg1 Be3 Nd1 Bb5 Rh2 Rg2 Bd3 Nf1 Bc4 Rg3 Rb2 Nd2 Bd3 Rc2 Nf2 Qc4 Ke8 Qe6+ Kf8 Bc4 Bf5 Bf1 Kg7 Bg2 Bd3 Bh1 Be2 Nf1 Nd2
1R2R2r/1bR2r1p/3B2Qq/n1bpnp2/1b3Nkb/3p4/PPQq1P2/2b2B1K b - - 0 1 illegal: No proof kernel
5Kn1/2R1Q1pR/p2P3b/1QP3N1/r1p1b2r/b1P4q/qprQnk2/NrB5 b - - 0 1 illegal: Other
4Nr1b/2Qn4/2B2npq/1r4kR/1nbn1pP1/4pq2/p1P1P1b1/1QN2NKB b - - 0 2 illegal: No proof kernel
1k2qn2/2B1qpPb/np2P3/1B1KnP1N/1rB4Q/2pN2p1/1b1r3n/1Rb1Q3 b - - 0 1 illegal: No proof kernel
4rB1N/p2Qq1kr/P1Nnpp1b/p2r1Q1n/4P1n1/3q3n/K1bPR3/RR6 b - - 0 2 illegal: No possible last move, all moves rejected
1r5N/1bq2N1p/3b1r1Q/N2npR1p/2pq1R1P/4PP2/1kqQKB2/1n2nn2 b - - 1 2 legal: proof: c4 d5 b4 dxc4 g4 a5 g5 axb4 g6 fxg6 Bg2 Ra5 Bf3 Ra8 Bh5 gxh5 h4 Kf7 d4 Kf6 a4 c5 d5 Ke5 d6 g5 a5 b5 f3 b3 a6 b4 a7 g4 d7 c3 Nh3 g3 Nd2 Kd4 Qc2 e5 Qf5 c2 Kf1 Kc3 Ng1 g2+ Ke1 b2 Qe4 b1N Ra6 b3 Qf4 c4 Rf6 b2 Qh6 Bb7 Rh2 Bd6 Rf4 Ne7 Nh3 Nd5 Ng5 Qc7 d8N Nd7 Nb3 Nd2 Na5 b1N Ndf7 Rhb8 Nh8 Nc5 Ngf7 Nf1 Be3 g1Q Rg2 Kb2 Rg5 Qg4 Kf2 c1Q Rgf5 Qc2 Ke1 Rf8 Bf2 Rab8 a8Q Qg1 Qa6 Qg4 Qc6 Qg1 Qd7 Qg4 Ng5 Rf6 Ngf7 Qg1 Bg3 Qd4 e3 Qb3 Ke2 Nd3 Bf2 Ne1 Qa4 Qbc3 Qd1 Qc2+ Qd2
Bb1q1bR1/7p/P2Q1kqB/1Nbp4/b6P/r2p2r1/pB1KP1N1/n2n1r1Q b - - 0 1 illegal: No possible last move
3N2q1/2Q1Bp1q/1rp1n1pR/k5b1/2P1nq2/KQ2p1P1/2r1r1PN/3Rr1Nb b - - 0 2 illegal: Other
1K2Qq2/1p4rp/p2P2RR/1Bk1B1p1/1b2rP1b/4nN1n/qQ3qPq/2Qb4 b - - 0 1 illegal: No proof kernel
3RKQq1/Pb1rR2q/5b1p/p1n1pQ2/rn2nNn1/B3RPp1/P7/q1kN4 b - - 0 1 illegal: Other
3RrbbQ/1q1P1k2/7p/rpNrpnr1/b3bQp1/Bn2P1P1/3Q2B1/N6K b - - 0 2 legal: proof: c4 a5 h4 g5 a4 gxh4 b4 axb4 c5 f5 Ra3 d6 Rah3 dxc5 Rg3 c4 Rg4 fxg4 f4 b5 Kf2 c5 d4 b3 d5 h6 e3 c3 d6 c2 f5 b2 f6 h3 g3 h2 Kg2 c4 a5 c3 a6 Qd7 a7 Na6 Qd5 Nc5 Nd2 b1B Be2 Nb3 Qc5 Kf7 Bf1 Qb7+ Ne4 Be6 Ba3 c1R Qd4 c2 Nf3 Rd1 Qd2 c1R Ne1 Rc5 Nc2 Rg5 Na1 Bc2 d7 Re8 a8Q Bd5 Rg1 e5 Kh1 Ne7 Bg2 Nf5 Rf1 Bc4 Qa4 Ra8 Nc5 Ra5 Qdb4 Rd5 Qd2 Nc1 Qab4 Ba4 Rf2 Ba2 Qf4 Nb3 Rf1 Bd6 Rf3 Re8 Rf2 Bf8 Rf1 Kg6 f7 Bg7 Rg1 Rd3 f8Q Nc1 Qh8 Bg8 Bb4 Nb3 Ne4 Kf7 Rc1 Bf8 Ba3 Rd6 Rc8 Rd5 Bf3 Ra8 Nc5 Ra5 Kg2 h1B+ Kg1 Bg2 Rd8 Bf1 Kh2 Bd3 Kh1 Be4 Bg2
3r2r1/4PbR1/2pN3P/2Rpnp2/b4P1p/1knnQn1Q/3q1b2/1B1bBKQ1 b - - 0 1 illegal: No proof kernel
K7/1R1b1QB1/Pb2nr2/2b4R/1pQPbn1r/qn3B2/kP1Np1pp/2B4n b - - 0 1 illegal: No proof kernel
nQ5b/6pB/3B4/Qq2p1NB/1b2brP1/4R1rr/1n1PprpP/K1bN1k2 b - - 0 1 illegal: Other
1b6/3BN3/bBN2NrQ/n3R1pp/p1qrnbrp/1P1P3p/P4Q2/3knK2 b - - 0 1 illegal: Other
1n6/3P1P2/pN1q1BQk/np1Bp1pp/3bPr2/2R2q1b/2r1n3/K1N1BQ1b b - - 0 1 illegal: No proof kernel
R3b3/Kp2N2B/b7/P1P2kn1/q1Q1n1p1/pp1pB2r/Qb1Pn3/1q1B1r1N b - - 0 1 illegal: No proof kernel
3r3R/PN1q2pp/B1Q1pP1k/q4r1P/n3n3/7Q/1Rpn1pK1/bbrQ2N1 b - - 0 1 illegal: No proof kernel
2r1Q2r/qpnB1q2/2N4p/1Pn4p/2N3bK/k1BP1R2/pp1rPQ1b/4Q2n b - - 0 1 illegal: No proof kernel
7K/1NB2b1p/b2r4/PnPp1pQ1/4n1B1/qpRkqQ1P/r1p2bR1/2n4R b - - 0 1 illegal: No proof kernel
R7/1RP3N1/n3pb2/K1p1P2n/6Pn/NbQ3np/2Qprrpk/B3n1Nq b - - 0 1 illegal: No proof kernel
Qk1r1br1/nP2q3/Q1P5/4Rr1N/p1np1bp1/P3pp1b/3bQ1B1/1KB1N3 b - - 0 1 illegal: No possible last move
1nNR1RN1/2K1Q1p1/2b1rn1Q/p3Nq2/P1npp2r/k3P1P1/Br1p1r2/6b1 b - - 0 3 legal: proof: d4 f6 Bg5 fxg5 h4 gxh4 c4 b6 c5 bxc5 Qd3 cxd4 Qd1 d3 Kd2 a5 Kc3 c5 Kc4 h5 Kb5 d5 f4 Kd7 a4 Kd6 b4 e5 f5 e4 g3 d2 f6 h3 f7 c4 Na3 h2 Nb1 c3 Na3 c2 Qc1 h4 Qe1 c1N Rb1 h3 Nf3 Ra6 Ne5 Rh4 Rg1 Be7 f8Q h1R Rg2 h2 Rf2 d4 Nac4+ Kd5 Rf6 Nd3 Nd6 Bb7 Nc8 Nb2 Qc1 Bd6 Qe7 Nc4 Rf8 Nf6 Qa3 Bc7 Qe3 Re6 Qh6 Rf4 Rb3 Rf2 Rf3 Qd6 Rd8 Ba8 Bh3 Rb1 Bg4 h1R Rf4 Ne8 Rf8 Nf6 Bh5 Rb2 Bf7 Rh4 Bg8 Nc6 Ka6 Qd7 b5 Bd6 b6 Kc5 b7 Kb4 b8N Ka3 Bf7 Qe8 Nbd7 Nb8+ Ka7 Bc6 Bg8 Qg6 Bf7 Nh7 Nf6 Qf5 Ng8 Nf6 Qe8 Bb5 Kb7 Be7 Kc7 Bc6 Rd7 Nh5 Rd6 Bg5 Rd8 Be3 Qd7 Nf6 Qe8 Rg2 Qd7 Bg1 e3 Rf2 Qe8 Rd6 Bd5 Re6 Qd7 Nb6 Ba2 Nc4 Qe7+
2Qk1B2/2R4n/q2qPprp/2RB2bP/1RpK2pq/4rp2/2P1bq2/4NnQ1 b - - 0 2 legal: proof: f4 d5 b4 a5 g4 axb4 e4 e5 g5 exf4 e5 Bh3 Nc3 Bg2 Ne4 dxe4 Qg4 Qxg5 Qd1 Qd8 Kf2 b5 d4 c5 a4 g5 h4 e3+ Ke2 f6 Kd3 b3 d5 c4+ Kd4 f3 h5 e2 d6 e1Q e6 g4 a5 b4 a6 b2 a7 b1Q Ra4 b3 Rb4 b2 Rh4 Qa1 Bh6 b1Q+ Rb2 Nd7 Rh2 Qh4 Bd3 Bf1 Nh3 Be2 Nf4 Ne7 Qc1 Rg8 Ng2 Qa6 Ne1 Rg6 Rb4 Nd5 Be4 Ne3 Bd5 Nf1 Qe3 Qc7 Qg1 Kd8 Rh1 Rb8 a8Q Bg7 Qc6 Nf8 d7 Qd6 Qb7 Ra8 Rb5 Ra7 Rc5 Qbb6 Bc1 Bh6 Ba3 Bg5 Bb4 h6 Ba3 Ke7 d8R+ Qdc7 Ra8 Nh7 Rc8 Qd7 Rc6 Kd8 Rc7 Qbd6 Ra5 Qdg3 Bf8 Qdd6 Rb5 Qac6 Rb4 Ra3 Rh2 Qa6 Rc5 Bd1 Rd2 Re3 Rd3 Qf2 Ra3 Qb8 Rc7 Be2 Ra5 Qhh2 Rac5 Qhh4 Rf7 Qbh2 Rfc7 Qhd6 Qc8+
4bB2/k4R2/q3NbBQ/1PB2r2/1pP1pQr1/2npP1n1/pp1K4/nqn2R2 b - - 0 1 illegal: No proof kernel
B2r4/3ppbBQ/3PQ1n1/p2KN1q1/PRr2P1k/1p3n2/4bq1p/bb1NN3 b - - 0 2 legal: proof: b4 g5 e4 f5 h4 gxh4 a4 fxe4 d4 c5 Ra3 cxb4 Rd3 exd3 Kd2 Kf7 Ke3 Kf6 Ke4 h5 g4 a5 c4 b5 d5 h3 d6 b3 c5 h4 f3 b4 c6 h2 c7 d2 Bd3 Kg5 Bc2 b2 Kd4 b3 Kd5 h3 f4+ Kh4 g5 Nf6+ Kc5 Bb7 c8Q Ng4 g6 Nc6 g7 Nce5 g8N Bd5 Nf6 Ng6 Be4 Bg7 Qc2 d1B Nc3 b1B Bb2 N4e5 Ng4 Be2 Nd1 Nf3 Ne5 Bf7 Qc4 Rh5 Qe6 Qb6+ Kd5 Qf2 Qg8 Rc8 Ba1 Rh8 Bc3 Rc4 Qh7+ Kg3 Bd4 Rd8 Bc3 Ne1 Ngf3 Bf6 Nd2 Nf3 Re1 h1Q Ba1 h2 Bc3 Nfh4 Ndf3 Qhg2 Ba1 Bed3 Re3 Be2 Ne1+ Nf3 Rd3 Qgg1 Rd4 Bg7 Qg8 Kh4 Bb2 Rc3 Rb4 Rc4 Bd4 Qg5 Qh7+ Qh6 Ng4 Bh8 Bg7 Qh5+ Ne5 Qh6 Qg8 Qg5 Qh7+ Kg3 Bh6 Rd4+ Kc5 Nd2 Ba8 Rc4+ Kd5 Nf3 Bf8 Bf6 Bh6 Kh4 Bg7+ Qh6 N5d3 Ba1 Ne5 Qh5 Bh6 Qg5 Bg7+
5b1Q/r1b3B1/1QR2PKp/1Q2p1n1/p6P/P3b1kq/p2pr1nB/1NR1q2b b - - 1 2 legal: proof: g4 c5 e4 f5 d4 fxg4 a3 b5 Nd2 d5 Nb3 dxe4 d5 b4 Nd4 cxd4 Be2 Kf7 Bc4 Ke8 Ba2 b3 Kf1 bxa2 Ke2 Kd7 Ke1 Ke8 Kd2 Kd7 h4 Kd6 c4 Ke5 b4 Kf4 b5 g5 f3 a5 c5 a4 d6 g3 b6 e3+ Kd3 h6 d7 g4 b7 g2 c6 g3 c7 Ra7 Qe1 Na6 b8Q Bb7 c8Q+ Nc7 Rh3 Nf6 Qd1 Nh7 Qf1 Ng5 Bb2 e2 Rc1 e1Q Rh2 Bc6 Qb6 Nce6 Bc3 Qc7 d8B Qd7 Ba1 Bd5 Rc6 Rh7 Rh1 Rf7 Qe2 Rf5 Qeb2 Re5 Q2b5 Re2 Bc3 Nh3 Bb2 Neg5 Qa8 e6 Bf6 e5 Bg7 Bd6 Qh8 Bf8 Bc3 Qg4 Bb4 Qd7 Bc5 Be4+ Kc4 d3 Bf2 d2 Be3+ Kf5 f4 Kg4 f5 Nf4 f6 Qc8 Nh3 g1B Nf2+ Kf3 Nd1 g2 Nc3 Qh3 Nb1 Kg3 Bd4 Be3 Rf1 Qf2 Rc1 g1B Kc3 Bh1 Kc2 Ng2 Kd3 Ne6 Ke4 Qe1 Bc5 Qh2 Kf5 Qh3+ Kg6 Ng5 Qg8 Bd4 Qh7 Bge3 Qh8 Bc3 Bd4 Ba5 Bc5 Bb4 Bd4 Bbd6 Bc5 Bc7 Bd4 Bf4 Bg1 Be3 Bh2+
n2q4/1KQ1N3/3q1Q2/P1p4r/1p1b2r1/BbP1P1pk/Rp3qRp/q1n1NN2 b - - 0 1 legal: proof: g4 a5 d4 g5 b4 axb4 h4 gxh4 g5 e5 Bh3 exd4 Bg4 f5 Ba3 fxg4 Bb2 Ra7 Bc1 Ra8 Kd2 Kf7 Kd3 Kg6 Kc4 Kh5 Kb5 d5 a4 c5 f4 g3 c3 Kg4 g6 h5 g7 d3 a5 b3 f5 d2 f6 h3 f7 d4 Nf3 d3 e3 h4 Re1 h2 Ra4+ Kh3 Re2 h1Q Ra2 Nc6 Qc2 d1Q Qb2 d2 Qc2 Nb4 Ne5 Rh5 Qe4 Nd3 Qc6 Qg2 Na3 Ne7 g8Q Bg7 f8N Nd5 Qh7 Nb6 Nac4 Qf2 Qf3 Be6 Neg6 Bd4 Ba3 b2 Qe7 Qa1 Nd7 d1Q Qff6 Nc1 Nd2 Bb3 Nde5 Qd6 Qc7 Rg8 Nf1 Na8 Ne7 Rg4 Nf3 b6 Ka6 b5+ Kb7 b4 Qg5 Qd3 Ne1 Qd8 Rd2 Qg6 Nc2 Qgd6 Qg6 Kg2 Qe6 h3 Qf6 h2 Ne1+ Kh3 Rc2 Qf5 Rg2 Qc2 Qg6 Qf2 Qf6
1bn5/NP1Q1N2/3p2K1/2qbr1p1/pr1pN2R/3R1q2/P4nPp/k1Q2Bqq b - - 1 2 legal: proof: d4 b5 c4 bxc4 h4 g5 d5 gxh4 d6 f6 Bg5 fxg5 Qd4 exd6 Qd2 d5 Qd1 d4 Kd2 Kf7 e4 Ke6 b4 Ke5 b5 a5 f3 h5 b6 c5 b7 a4 Qe2 c3+ Kd3 h3 Qc2 h2 Na3 h4 Nb1 h3 Qe2 c2 Qe1 c1Q Qd1 Na6 Nd2 Ne7 Rb1 Nb4+ Ke2 Ra5 Rb3 Rh4 Rd3 Qa3 Kf2 Qc7 Kg3 Qc6 Ne2 Rf4 Re3 Nd3 Nc3 Nf2 Nb5 Bg7 Qc1 Qb6 Rg1 h1Q Na7 Rb5 Rb3 Rf5 Re3 Rb4 Rd3 h2 f4+ Ke6 e5 Kd5 e6 c4 Kf3 c3 Ne4 Re5 f5 Kc4 f6 c2 f7 Qc5 f8N Bf6 Ng6 d6 Qa1 c1Q Nh8 Bd7 Qb1 Bc6 Nf7 Nc8 e7 Bd5 e8Q Bd8 Qd7 Bc7 Kg3 Qe1 Qc1+ Qac3 Kf3 Bb8 Kg3 Nd1+ Kg4 Nf2+ Kh5 Qd1+ Kg6 Qf3 Qf4 Qa1 Be2 Qb1 Re1 Qd1 Bf1 Qb1 Nf6 Qbd1 Re4 Qg1 Rd2+ Kc3 Rd3+ Kb2 Qd2+ Kb1 Rh4 Ka1 Ne4 Qh1 Be2 Qdg1 Bf1 Qc1 Qf4 Qc5 Qc1+
BB1Rr1N1/1pq2Nb1/1b2k3/1Qn2p1p/p1r4b/1P3bp1/2B1nPP1/q3Q2K b - - 2 3 illegal: No proof kernel
NQ1R4/Qrn1b1Kn/4qp2/1p1pp1p1/b7/BPq2p2/1Pk1PR2/B1r3Qn b - - 1 2 illegal: Other
n2N1br1/8/n2k1PpP/Pr1bR3/3K4/2p1B1Nq/1bbB1b2/2n1NB1R b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 d4 d5 g4 hxg4 Qd3 c5 cxd5 cxd4 Qc3 bxc3 Ke2 Kd7 Kd3 b5 h4 e5 a4 e4+ Kc2 b4 f4 d3+ Kb3 e3 Kc4 g3 a5 b3 d6 d2 f6 d1B f5 e2 f7 e1B h5 g2 f6 g6 h6 b2 Rh2 Bb7 Ra2 Qc8+ Kd4 Bd2 Rh4 Ne7 Ra3 Bc2 Re4 Bd5 Re2 Na6 Rf2 Rb8 Re2 Rb5 Re6 Rg8 Ne2 g1B+ Re3 Bf2 Ra1 Kc6 d7 Kd6 d8N Qh3 Na3 Nc8 Ng3 Nb6 Rb1 Na8 Ra1 Bce4 Nc2 b1N Ne1 Bd3 Nh1 Bc2 Ng3 Na3 Rb1 Nc4 Ra1 Ne5 Rb1 Bg7 Ra1 Nd3 f8B+ Kc7 Bc5 Bf8 Ba7 Kd6 Nh1 Bg3 Re5 Bdf4 Be3 Bf2 Ng3 Nc1 Bc5+ Kd7 Rg5 B4d6 Re5 Kc7 Ba3 Kd7 Bb2 Ba3 Rb1 Kd6 Ra1 Na2 Bc1 Bb2 Bd2 Nc1 Bg2 Qf5 Nd3 Na2 Rh1 Nc1 Bf1 Qh3 Ne1
4R3/2r4q/N1rPK1P1/3R1rp1/1Br4R/P2N3p/1qn1kqNB/n3b2b b - - 0 1 legal: proof: d4 a5 e4 d5 b4 f5 exf5 axb4 c4 c5 cxd5 cxd4 h4 g5 g3 g4 Bh3 gxh3 g4 h6 g5 Bd7 g6 Be6 Qg4 Bc8 Qg5 hxg5 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 f4 Kd3 h5 b5 f6 b3 f7 b2 a3 b4 h6 b3 f5 Ra7 f6 Qd7 h7 Rc7 Rh2 Nh6 Rh1 Nf5 Rh2 Na6 Bf4 Ne3 Re2 Nc5 Rf2 Nc2 Nd2 b1R Rf1 b2 Re1 Bb7 Re4 Rc1 Re2 b1Q Ne4 Nb3 Be3 Qb2 Bf4 e6 Bg3 Bb4 f8B Be1 Bb4 Rhc8 h8R Qh7 d6 Rc4 f7 R8c6 Ra2 Nba1 f8N Rc7 Kf6 e5 Nf3 Bd5 Ne6 Bc6 Nc3 e4 Bh2 e3 Nh4 Bh1 Nd5 R4c6 Re8 Rc4 Rg2 e2 Ndf4+ Ke3 Kf5 d3 Rg4 d2 Nd3 d1R Ng2+ Kf3 Nec5 Rd2 Nf2 Rd5+ Ke6 Rf5 Rd4 Bc3 Re4 e1Q Nfd3 Qf2 Na6 Be1 Rg4 Ke2 Rh4 Qbg7 Rb2 R4c6 Rb3 Qb2 Rc3 Ne3 Rc5 Rc4 Rb5 Nec2 Rd5
Rn3rqb/1Kb1qnr1/4PN1P/1N1BPk1R/b6R/4q1r1/2N1r2q/4B1q1 b - - 0 1 illegal: No possible last move, all moves rejected
2k1B1B1/2n1qb1q/b7/3rn1n1/P1PRnB1q/NP3b1r/2K2R1r/4N1Nq b - - 0 1 legal: proof: f4 a5 h4 b5 c4 bxc4 f5 g5 f6 gxh4 Nc3 a4 Qb3 a3 Qd1 exf6 Nb1 f5 Qb3 f4 Qa4 Nh6 Qd1 Ng8 b3 c5 Bb2 c3 Nh3 c4 Qc1 c2 Bc3 Bb4 Qb2 axb2 Ng1 c1N Bd4 c3 Bf2 c2 Be3 Bc3 dxc3 Qa5 Bd2 Qd8 a4 f5 e4 d5 g4 Kd7 g5 h5 e5 f3 g6 d4 g7 d3 Nh3 f4 Ng5 h3 Rh2 h4 Rh1 h2 Be2 h3 Bf1 Na6 Na3 b1Q Ne4 Nf6 g8B Nh7 Be2 f2+ Kf1 Qh4 Be3 d2 Rg1 h1B Rg6 h2 Nd6 Nc7 Bd5 Bf3 Ndb5 Ba6 e6+ Kc8 e7 Ng5 e8N Nd3+ Bd1 c1R c4 Rc2 Rf6 Ne5 Nc3 Rb2 Bg8 Qbh7 Bc2 d1B Ne2 h1Q+ Ng1 Bd5 Bd2 Bf7 Ng7 Bf3 Bg6 Rb8 Rc1 Rb5 Nf5 Rd5 Ne3 Be4 Ke2 f1N Kd1 f3 Ne2 f2 Rb6 Qf4 Nec2 Q7h6 Rc6 Qf8 B6h7 Bh5 Ne1 Qe7 Bf7 Qhh2 Nf3 Ng3 Ne1 f1Q Be8 Bf7 Rf6 Qfh1 Bg8 Bg2 Ra1 N3e4 Ng1 Qfg3 Rf1 Bf3+ Kc1 Qh5 Bf4 Rh2 Rf2 Qg6 Rb1 R8h3 Kc2 Qh4 Rd1 Qgh7 Rd4
n4rnR/1N4b1/n3R1P1/4rNK1/P1nqqp2/2rn2PN/1k1BB2R/b3b3 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 e5 axb4 e6 g5 Ba6 fxe6 Be2 e5 Bf1 e4 f4 b6 h3 Ba6 f5 Bb5 Qf3 Be2 Qf4 Bg4 hxg4 gxf4 Kd2 Kf7 a4 Kf6 c4 Ke5 f6 h5 g5 d5 f7 b5 g6 b3 c5 b4 g3 h4 c6 b2 c7 e3+ Ke2 b3 Kf3 e2 Kg4 e1B c8R h3 Bd2 d3 Rc7 Kd4 Nc3 b1N Rc5 e5 Ra3 e4 Rc7 e3 Ne4 e2 Nc5 b2 Kf5 h2 Nd7 Ra5 Rc8 Na6 Ra2 Nc3 Rc5 b1N Rb5 Na3 Nh3 Bg7 f8N Nc4 Rb1 Nb5 Bg2 Nbc7 Bc1 Kc3 Nf6 d4+ Kg4 d2 Nh5 d1N Ba8 d3 Rba1 d2 Rb1 Ndb2 Nf6 d1R Ne8 Re5 Nd7 Rd3 Bf3 Na8 Nc5 Qd4 Nd6 Bf2 Re1 h1Q Ncb7 Rde3 Rba1 Nd3 Nf5 Qg2 Rh1 e1B Be2 Qge4 Kg5 Kb3 Bd2 Rf3 Ra3+ Kb2 Rh2 Re3 Bb4 Bc3 Rah1 Bfe1 Ra1 Nh6 Ba5 Rf8 Ra3 Ng8 Rb3+ Kc2 Rb6 Ba1 Re6 Kb2 Bb4 Nf2 Bd2 Rc3 Ng1 Nd3 Rh8 Nf6 Nh3 Ng8 Rh2
qn1K2R1/PB1P4/B3P2B/4NN1b/nkq1b1r1/2Rr3n/rb1N1p2/b3b3 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 f4 g5 c4 gxh4 cxd5 e5 Qb3 exf4 Qa3 bxa3 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 e4 h5 g4 f5 d4+ Kb4 a5 c5 g5 f3 g6 f2 g7 h3 a6 f4 d6 a2 d5 c4 d7 h4 Ke6 f3 d6 c3 e5 c2 Be2 f1Q Bd1 f2 Bg5 c1B Nd2 h2 Bb3 h3 Be7 Rh4 Bc2 Nf6 g8B Qc4+ Kf5 Bb2 Ndf3 Rg4 Be4 Nd5 Nd2 Nf4 Rc1 a1B Kf6 Bb7 Bd3 Be4 Bd5 Bg6 Ngf3 Bh5 Rhe1 h1R Bb7 h2 Nd4 Nh3 e6 Rf1 Rc2 h1B Rc3 Be4 Nf5 Bh6 Re3 Rd1 Rg3 Qdc8 d8N Bf4 Nb1 Bd2 Bf8 Be1 Ke7 Ra7 Be2 Rd3 d7 Q8c6 Nf7 Q6d5 Bc8 Qa8 Bg7 Ka4 Rg2 b4 Bb7 b3 Kd8 Kb4 Ne5 Ba3 Nh4 b2 Nd2 b1N Bh6 Bc1 Nf5 Bcb2 Rc2 Nc3 Rg3 Rh4 Rg8 Na4 Rc3 Rg4 Bc6 Rb7 a7 Rb6 Bb7 Ra6 Rg7 Nc5 Rg5 Ra2 Rg8 Na4 Ba6 Bh1 Bf3 Bg2 Bc6 Be4 Bcb7
7n/rR1q1q1b/BB4k1/p2PRn2/1B2P1r1/r2n1nbb/R1N2P2/Kb2N3 b - - 0 1 legal: proof: h4 d5 d4 g5 c4 dxc4 a4 gxh4 g4 e5 d5 b5 axb5 f5 Qd2 fxg4 Qd4 exd4 Kd2 Kf7 Kc2 h5 b4 c5 Kb2 a5 e3 h3 b6 h4 b7 h2 b5 c3+ Ka2 c2 b6 d3 Bh3 c4 Bf1 d2 Nc3 d1Q Nce2 h3 Nf4 g3 Ng6 g2 Nf3 g1N Ne1 c3 Nh4 Bd6 Ng6 Nd7 b8B Nf3 b7 Ne7 Bc7 Rg8 b8R Ra7 Rg1 h1B Rg5 h2 Bh3 Nf5 Nf8 Nde5 Rh5 Ng6 Rg5 Bg3 Rb3 Qd7 Rbb1 Nh8 Bb2 c1N+ Ka3 c2 Bg7 Nd3 Ka2 c1R Bb6 Rc3 Bf1 Qe2+ Rb2 Ra3+ Kb1 Bg2 Raa2 h1B Bc3 Bh3 Ne6 Ba6 Rh5 Rg4 Bb4 Kg6 Ka1 Qc2 Be2 Qcc7 Nd4 Qf7 Rb3 Qcd7 Ndc2 Bb5 Rc3 Ba4 Rc7 Bb5 Rb7 Ba4 Nd4 Bc2 Bf1 Bb1 Ndc2 N3h4 Be2 Be4 Bf1 Nf3 Be2 N5h4 Re5 Nf5 Bf1 Nc1 Bb5 Nd3 Ba6 Kg5 Re7 N5h4 Bc3 Bh7 e4 Kg6 Bb4 Nf5 Re5
R7/r2R4/nPb3p1/p1R1N1b1/1r2qN1k/nbb5/1N2BPPr/B1K1b1q1 b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 c5 d4 cxd4 h5 b5 axb5 g6 Qg4 gxh5 Qg5 h4 Qg6+ hxg6 Kd2 Kf7 b4 Kf6 c4 Kg5 b6 a5 c5 d5 b7 e5 c6 d3 b5 h3 b6 e3+ Kd1 d4 c7 e4 Nc3 d2 Ra4 h2 Kc2 d1Q+ Kb2 d3 Na2 d2 Rb4 e2 Nh3+ Kh4 Ng1 e1B Rb5 e3 Nc3 e2 Rf5 Qd5 Nb5 Ne7 Rf7 Nec6 Kb1 Bd7 c8R Ne5 Nh3 Qe4+ Kb2 Bc6 Nf4 Na6 b8N Ra7 Rd8 Be7 Na3 Bg5 Rfd7 Rh5 Rg1 h1R Nc4 Rh2 Rh1 Nd3+ Kb1 Ndb4+ Kb2 Nc2 Rg1 Ba4 Nc6 Na3 N6e5 Bc6 Ra8 Rh8 Rd5 Rd8 Rc5 Rd4 Rh1 Qa4 Rg1 d1B Bd2 Qb5+ Kc1 Bb3 Nb2 Rb4 Bc3 Qa4 Bd4 Bc3 Rh1 e1B Be2 Qb5 Rc8 Qc4 Bd1 Qf1 Nbc4 Ba1 Be2 Rh3 Rh2 Qh1 Ra8 Qg1 Nf3+ Kg4 Nfe5+ Kf5 Bc3 Rh5 Rh3 Rh4 Rd3 Rh2 Nf3+ Kg4 Nfe5+ Kh4 Rd7 Bd1 Bd2 Bd4 Bc3 Bb3 Ba1 Bdc3 Nb2
2r3qb/3P1P1r/R1bB3P/q1q1RN2/r7/4pNpK/nk2p1nB/r1R1B3 b - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 g5 g4 h6 f4 Qd3 f5 Qd7 Qf3 Qd8 Qf4 gxf4 g5 h5 Be2 Qd6 Bd1 Qd8 Bg4 hxg4 Kf2 Kf7 Kg2 c5 d4 e5 h4 a5 b4 a4 b6 a3 d5 g3 h5 f3+ Kh3 a2 b5 f2 h6 f1R g6+ Kf6 b7 c3 b6 c2 d6 e3 g7 e2 d7 e4 Nc3 Ke5 f6 Kd4 f7 c4 Bg5 c1Q Nd1 e3 Rh2 c3 Rh1 c2 Nb2 Kc3 Nf3 Nc6 b8B Nf6 g8R Rh7 b7 Bg7 Re8 Nh5 Be7 Bh8 Bbd6 Nb4 b8B Ra4 Bbc7 Bb7 Nc4 Bc6 Ba5 Qe1 Bf8 c1Q Re5 Qc2 Bfe7 Qg8 Bed8 Qed2 Bdb6 Rb1 Rc1 Kb3 Bd4 Qe1 Bc3 Nf4+ Kh4 Ng2+ Kh3 Qed1 Be1 Qdd2 Bf2 Qd5 Rh1 Rc1 Bg1 Qc3 Bh2 Qc5 Rd1 Rc2 Rac1 a1R Rdd5 Qe1 Re6 Na2 Rde5 Qd2 Bb4 Qdd5 Be1 Qd2 Na5+ Kb2 Nb3 Qda5 Nbd4 Rcc4 Rg6 Rcb4 Rf6 Rb8 Nf5 Rc8 Bc7 Ba8 Ra6 Bc6 Bd6
1n4R1/pP1nrN1b/1Rn1P1nk/q3b2n/1p3N1N/1n5R/1p3K1P/1n1B2B1 b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 h5 a4 hxg4 Ba3 c5 Bb2 cxb4 Bc1 b3 c4 d5 c5 b5 Ra2 b4 Qc2 Na6 Qc4 Rb8 Ra1 Rb5 axb5 dxc4 d4 g5 e4 f5 d5 Kf7 e5 Kg6 c6 f3 c7 b2 b6 f2+ Ke2 f4 b7 g3 d6 f3+ Ke3 g2 d7 g4 Ra3 g3 Rd3 c3 Nd2 c2 Rd5 Ne7 Nb3 Nc6 Be2 f1N+ Ke4 f2 Kf3 Bg7 Bb5 Nab8 Bf4 c1N Rd4 Re8 Nc5 Re7 Ne6 Nd2+ Ke3 Ncb3 Ba4 f1N+ Ke2 Nb1 Nf3 g1N+ Ke1 g2 Kf2 Kh5 Be3 Ng3 Rd6 N1e2 Rf1 g1N Nh4 Nf3 Nf4+ Kg5 Rfd1 Nh5 R1d3 Bf6 Rc3 Kh6 Bd4 Nca5 Rb6 Nac6 Kf1 Bg7 Bg1 Bh8 Kf2 Bf6 Nh3 Nef4 Rd3 Ng6 Nf4 Nfd2 Rg3 Nc5 Bd1 Ndb3 Rh3 Qh8 d8R Bf5 c8N Ncd7 e6 Be5 Rg8 Bd3 Rg7 Qd8 Rg8 Bf5 Nd6 Bd3 Ra6 Qa5 Rb6 Nh8 Ne8 Bh7 Nd6 Ng6 Nf7+
NK6/5n1B/pPqp2B1/1kp2nPR/qb4r1/P2nR3/1r1r2N1/r1q1N1R1 b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 b5 e4 bxc4 Qf3 h5 Bf4 g5 Qg3 h4 f3 Bb7 e5 Be4 fxe4 hxg3 Bd3 gxf4 Be2 Qh4 Bf1 Qd8 Kd2 f5 b4 c3+ Kd3 f3 Kc4 g2 Kd5 f4 h4 f2 g5 f3 e6 c2 e5 c1N b5 a6 a3 d3 b6 d2 h5 d1Q+ Bd3 f1R h6 f2 h7 Bb4 e7 c5 Kd6 Qc8 Nh3 g1R Nd2 Nh6 Bc2 Rg4 Rg1 Nc6 Nf4 Nd3 Ng2 Nd8 Nf3 Qb7 Bb1 Qa4 Nfe1 Qe4 Kc7 Nf5 Ra2 Nf7 Re2 Rd8 Re3 Rf8 h8R Qd5 Nf3 Qa8 Bc2 Ra1 Rh5 f1Q Bb1 Qc1 Nfe1 Qd5 Bc2 Qd6+ Kb7 Qdc6+ Ka7 d6 Bb1 Kd7 e8N Rh8 Nc7 Rde8 Na8 Re6 Bc2 Rh7 Kb8 Reh6 Rhh1 Rh2 Bb1 R7h4 Bc2 Rd4 Bb1 Rhg4 e6+ Ke8 e7 Kd7 Nh4 Rb2 Nhg2 Qe4 Rh4 Kc6 Rh5 Kb5 e8B+ Qc6 Bc2 Rdf4 Bb1 Rff2 Bc2 Rd2 Bb1 N7h6 Bg6 Nf7 Ba2 N7h6 Bg8 Nf7 B8h7
q4qb1/n2prrn1/1k1R1b2/1qn2P2/bB1bNK2/N1BP2N1/2nP2R1/3B3r b - - 0 1 illegal: Other
Bk3B1K/3PnpR1/Nr3r1N/3pBbN1/1R3nbq/5P2/3n2P1/b1qq1rb1 b - - 0 1 illegal: No proof kernel
1n1r1rq1/6Pp/8/bR1R1pNP/K1br3k/1NrrNB2/2n1rPB1/1n2R1b1 b - - 0 2 legal: proof: d4 a5 c4 d5 b4 dxc4 h4 axb4 d5 e5 Qd4 exd4 h5 g5 Bf4 Bg7 Bg3 Bf8 Bh4 gxh4 Kd2 Ke7 Kc2 Kf6 e4 Kg5 g4 b5 a4 f5 a5 c5 a6 c3 Kb3 h3 d6 c2 d7 c1R e5 c4+ Kb2 d3 a7 c3+ Kb3 d2 e6 d1R e7 h2 e8B c2 Bg2 Ne7 Bc6 Rd4 Bg2 Ba6 Nd2 Nec6 Rb1 Kh4 g5 Bd6 g6 Rf8 Kb2 b3 g7 b4 Ra1 Bc4 Ra3 Bc7 Bd5 Ba5 Ne2 Rd3 Nf4 Nd4 Rf1 h1R Rd1 Re1 Ne6 Re2 Re1 Rd1 Ng5 c1B+ Ka1 Qc8 d8R b2+ Kb1 Rc3 Rb3 Nc2 Ka2 b1N Bec6 Qe6 Be4 Qg8 Bg2 Bb2 Rd5 Ba1 Nde4 Rdd3 Nc5 Bb2 Bb7 Bc1 Bc6 Bf4 Bf3 Bh2 Bb7 Nc6 Kb2 Rad8 a8N Rd4 Nb6 Nb8 Bg2 Bg1 Ka2 Bb5 Nc4 Ba6 Ne3 Bc4 Rd7 Rdd3 Bbf3 Rd4 Kb2 Rcd3 Rd5 Rc3 Ra3 b3 Ra4 Rcd3 Rb4 Rc3 Rb5 Rcd3 Nce4 Rc3 Nd2 Rdd3 Kc1 b2+ Kd1 Nb4 Rb6 Rd4 Rbb5 Na3 Bg4 Rf4 Nb3 b1R+ Nc1 Rbb2 B4f3 Nb1 Nd3 Rg4 Nc5 Rd3+ Kc1 Rgd4 Nb3 Rbd2 Nc2 Rc3 Kb2 N4c6 Ka2 Rd1 Kb2 R1d3 Ka2 Nb4+ Kb2 Nd2 Ka3 Nb1+ Ka4 Rc8 Rd1 Rcd8 Ne3 Nc2 Re1
3B4/b2qN2n/5R2/2bpPRRp/2NPb1P1/b1Nn1B1n/rr1bKbk1/q7 b - - 0 1 illegal: No possible last move
rk1qn1rr/pB5n/1pNn1P2/2b4B/R2rbN2/1Pb1P3/NR2K2B/3n2r1 b - - 0 1 illegal: No proof kernel
7n/n2P2qr/3nNn1B/b2bR2R/P6p/q1q1p2P/BbrbK3/1k1NN1B1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Qe2 d5 Qf2 dxc4 Qf4 gxf4 d4 Kd7 a4 Kc6 g4 Kd5 h3 h5 f6 b5 g5 c5 g6 e5 g7 b3 f7 h4 Ne2 b2 Ng1 f3 Na3 b1Q Be2 c3 Bd3 c4 Bf1 b4 Nc2 f2+ Kd1 e3 Ne2 Ke4 d5 Kd3 d6 b3 d7 e4 Rh2 b2 Rh1 Qe7 Rg1 Nf6 g8N Bg7 f8B Rh7 Ra2 Qa3 Ra1 Nc6 Rg5 Nd8 Rc5 Nf7 Ne7 Nh8 Nf5 Bb7 Rb5 Rc8 Ra5 Bd5 Ra2 Qa1 Ncd4 b1N Bg2 f1N Bb4 c2+ Ke1 c3 Ra7 Ng3 Bb2 c1B Ne7 c2 Ng6 Nf5 Bd2 Nd6 Nf8 Nc3 Nfe6 Ncb5 Nc3 e2 Ra5 Na7 Bh6 Bd2+ Kf2 c1Q Nc2 Rc5 Nd1 e1B+ Kf1 Rc7 Bd4 Qa1b2 Bg1 e3 Bf3 Qbc3 Rb2 Qca1 Rbb5 Rc4 Bh5 Q1b2 Bf7 Qba1 Ncd4 Q1b2 Nf3 Kc2 Ke2 Kb1 Be8 Qe5 Bf7 Rc2 Rb4 Qg5 Re4 Qbc3 Bg8 Bf8 Re5 Qg7 Rc5 Be7 Ra5 Bd8 Rc5 Ba5 Rh5 Bg3 Ne1 Be5 Rb5+ Qcb3 Bf7 Bb2 Re5 Qc3 Rh5 Bg2 Rbe5 Bd5 Nf8 Ba8 Bd5 Bc6 Ne6 Bb7 Bb3 Bd5 Ba2+
nBb1N2b/4n3/1RB5/brppq1r1/2NB1rPq/2Pk2pP/Kn2R1R1/2q5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 e5 f5 exd4 f6 h4 Qd3 gxf6 Nh3 f5 Ng1 f4 Qg3 hxg3 Kd2 Ke7 e4 Kf6 b4 Ke5 b5 a5 h3 f5 b6 d5 b7 d3 Kc3 a3 Kb3 Kd4 e5 a2 e6 d2 e7 d1N e8R f3 Bf4 f2 Bd3 f1R Re3 Na6 b8B Qh4 Re6 Bb4 Bc4 c5 Ba7 Nb2 Bg5 f4 Bd8 f3 Rg6 f2 Bb8 Nc7 Bb5 Ne7 Rh2 Rg8 Rc6 Rg5 Rg2 Ra6 Nd2 Rb6 Rd6 Na8 Re1 a1Q Bc6 Rb5 Ne4 Qc1 Rg6 a4+ Ka2 a3 Re2 Ba5 Nf6 Qe3 Ne8 Qe5 Nf3+ Kc3 Nd2 Kd4 Nc4 Kc3 Re1 Kd4 Kb1 a2+ Kc1 a1B Kb1 Rh1 Rf6 f1Q Ka2 Kc3 Ree2 Qc1 Rh6 Rf1 Rg6 Rf4 Re6 Ng6 Bf6 Kd4 Bb7 Ne7 Rb6 Na4 Bh8 B1c3 Bc6 Nb2 Ne3 Ke4 Bg7 Bd4 c3 Kd3 Nc4 Qee3 Bh6 Bh8 Bg7 Qe6 Bd4 Qf6 Bf2 Qe5 Bd4
3N1r1B/q1r1NpR1/p1n2K1P/q1p4b/Pk1RqP2/1N3n1B/3B3n/b3b1r1 b - - 0 2 illegal: No possible last move
2r5/K1PpR1p1/p1RbbBn1/PqB4P/4B1nN/5R2/2bkb1N1/nbr4q b - - 0 1 legal: proof: d4 c5 g4 h5 b4 hxg4 d5 cxb4 d6 f5 Bh3 f4 Bf1 exd6 Qd2 d5 Qd3 d4 Qg3 fxg3 Kd2 Kf7 Kd3 Kg6 Kc4 Kf5 Kb5 Ke4 h4 a6+ Kc4 b5+ Kb3 d3 f4 g2 a4 g3 c4 d2 a5 Ke3 h5 Bd6 c5 Qb6 c6 Nf6 f5 Bb7 Nh3 g1N Bg2 Ng4 f6 Rc8 f7 Nf3 f8B Ne1 Nf4 Nc2 Bb2 d1B Bd5 g2 Rf1 g1Q Nd2 Qh1 Be4 Qc5 Rc1 Na1+ Ka2 Qf5 Bf6 b3+ Kb2 b4 c7 Bd5 Nf3 Nc6 Nh4 Nce5 Rf3+ Kd2 Rc6 Ng6 Nfg2 Rab8 e3 Be2 B8e7 Bh2 Bc5 Rb6 Bb1 Bdc4 e4 Bd6 e5 Be6 Bc2 Qd3 Bb1 Qb5 Be4 Bd5 e6 Rb7 e7 Be6 e8R Rbb8 Ne1 Rb7 Kb1 b2 Re7 Rbb8 Bd5 Rb7 Ka2 b3+ Ka3 b1B Be4 b2 Neg2 Bbd3 Bd4 b1B Bf6 Qb2+ Ka4 Qe5 Ka3 Rb5 Ka4 Bdc2+ Ka3 Rb3+ Ka4 Rc3+ Kb4 Rc4+ Ka3 Qd4 Bb4+ Rc3+ Kb2 Bcb3 Ka3 Bg3 Bd6 Qd5 Kb4 Qd3 Re3 Rc1 Rf3 B3c2 Kc5 Qc4+ Kb6 Qb5+ Ka7 Be5 Ba3 Bd6 Bc5
6K1/1pB1PrN1/1Bb2r2/np1R4/b2rR2k/1Prq1Rqp/1PB5/Nrb1n3 b - - 0 1 illegal: Other
1N3r2/K1b5/1Pr3b1/N1bPp1bp/2B1kn1B/1p3NRP/p2b2B1/2nrR1q1 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 a4 bxa4 b5 fxg4 Qf3 d5 Qb3 dxe4 Qb4 cxb4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 g5 d4 h5 f4 a5 h3 e3 b6 e2 Kb5 Kd5 c4+ Ke4 c5 e1B c6 b3 c7 g3 f5 g2 f6 g4 f7 a3 d5 a4 Ne2 g1B Rh2 a2 Rf2 g3 Ba3 g2 Bb4 a3 Rf6 Rh6 Be7 Nd7 Rf3 Bd2 Rf2 Rc6 Bc5 Qg5 Bd4 Nc5 Rf3 Bf5 c8B Bd6 f8N Bg6 Rg3 Ne7 Nd7 Bc7 Ba6 Bge3 Nb8 Nd3 Ng1 Nc1 Nf3 g1B Bg2 Bf4 Bc3 Bc5 Bd4 Qg4 Bf2 Bg5 Be1 Nf5 Bf2 Ng7 Be1 Ne6 Bf2 Bde3 Be1 Nf4 Nbd2+ Kd3 Nc4 Ke4 Rb1 a1R Na5 a2 Bf2 Bd2 Be1 Rf6 Bf2 Rf8 Kc6 Rf6+ Kb7 Rd6 Bc4 Rc6 Nd7 Rf8 Nb8 Nce2 Re1 Rd1 Be3 Nc1 Ka7 Qh4 Rg4 Qf2 Rg3 Ba3 Bc5+ Qe3 Be7 Bc5 Be2 Qg1 Bd8 Bh6 Bh4 Bg5 Bc4+
3q3N/1K4N1/1prP1R2/1p1P2nB/bPRpqb2/Bnp1B3/k4p2/1rr3Rq b - - 0 1 illegal: Other
4KN1q/1q1r2Bk/2p3R1/r5P1/p1nNp1r1/BpPn4/PR2p1Rp/1B1b2b1 b - - 0 2 legal: proof: e4 c5 h4 g5 b4 cxb4 e5 gxh4 e6 fxe6 Qe2 e5 Qa6 e4 Qc6 dxc6 Ke2 Kf7 Ke3 a5 Kf4 b5 Kg5 e5+ Kh5 e3 g4 b3 f4 b4 d4 b2 g5 e2 f5 a4 d5 h3 d6 h2 c3 Ne7 f6 Ra5 d7 Kg8 Bd2 Na6 Nh3 Nc5 Be3 Nd5 Nf4 Nb6 Ne6 Nc4 Bd4 Nd3 Rg1 Bc5 Nd2 b1Q Nb3 h6 Kg6 h5 Rg3 Rh7 Rg2 Qf8 d8R Rd7 Re8 Ba7 Bc5 h1R Nbd4 h4 Bd6 b3 Ba3 h3 Re7 Qc2 Rb1 h2 Rb2 Rg1 Rf7 Qb4 Rh7 Qb7 Rg7+ Kh8 f7 Qd2 Rf2 Rg4 f8B Qe3 Kf6 Qh3 Rg6 Qh6 Bg7+ Kg8 Bh3 Qh8 Rg2 Bb6 Nf3 Bg1 Nfd4 Rc7 Nc5 Bf5 Nce6 Rd7 Nc7 Rd8 Ke7 Rd7+ Ke8 Nf2 Nd5 Bc2 Nf4 Nd3 Nfe6 Bd1 Be7 Rh4 Bf5 Rg4 Bb4 Nf4 Bc2 e4 Bb1 Nd3 Ba3 Kh7+ Nf8+
2K2B2/ppbp1bp1/7N/2BNP2R/PnRr2r1/5pPp/4rrn1/2RNqk2 b - - 1 2 illegal: Other
1R1Q2rR/rrr2qn1/p3qRN1/1PPBb1RN/n3P3/4r3/8/1k2nb1K b - - 0 1 legal: proof: g4 b5 a4 c5 axb5 g5 c4 e5 f4 exf4 h4 gxh4 d3 h6 Bd2 h5 d4 cxd4 Bc3 dxc3 gxh5 Bg7 Ra5 Bh6 Ra1 Bf8 Kf2 Ke7 Kg2 Kf6 e4 Ke5 b4 f5 c5 d5 b6 h3+ Kh2 d4 b5 f3 b7 d3 h6 Kd4 h7 c2 Ra2 c1N Qc2 f2 Rb2 a6 Qe2 f4 Nd2 Kc3 Bg2 f1R Ndf3 d2 Qd1 Qd7 Ne1 f3 Ra2 f2 Qh5 d1R Qf3+ Rd3 Re2 Nf6 Qh5 Ra7 Qf5 Nh5 Qg6 Rg8 h8R Ng7 Rh4 Re3 Qh5 Bd6+ Rf4 Nd3 Ngf3 Qe6 Nc2 Kb2 Nb4+ Kb1 Ne5 Nd7 b8R Nb6 Qh4 Ne1 Qd8 Na4 Ng6 Be5 Nd3 Rg1 Bf3 f1Q Bg4 Rgg3 Rf8 Qff7 Rg2 Rc7 Kg1 Ra7 Ndf4 h2+ Kf1 Rb7 Be2 Rh3 Bc4 Rh7 Rg5 Ra7 Kf2 Rb7 Rf1 h1R Bd5 R1h2+ Kg1 Rd2 Bc6 Rdd7 Bd5 Rdc7 Nh5 Ra7 Ne7 Rh6 Rg2 Qh3 Rb6 Rgh8 Rb7 Rb6 Rb8 Rbb7 Rg5 Bg4 Ng6 Be2 Rf6 Qhe6 Kh1 Bf1 Rg8 Nf5 Rg7 Rg8 Rh7 Ng7 Rh8
2Rrnq1n/Pp2p2Q/rBRB4/2K5/6r1/1PP1k2R/1qbRN2n/6br b - - 0 1 legal: proof: a4 c5 d4 cxd4 g4 f5 e4 h5 gxh5 a5 c3 d3 Qc2 dxc2 exf5 Ra7 Na3 Ra6 Be3 Ra8 Rd1 c1Q Nc2 Qa1 Nb4 axb4 Bd3 b3 Bc2 bxc2 b3 Ra6 Nh3 Ra5 Ng1 Ra8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 f4 c1R a5 g5 a6 d5+ Kc5 d4 h6 g4 h5 g3 f6 g2 f7 d3 f5 d2 h7 Nd7+ Kc4 Bg7 f8Q Ndf6 h6 Ne8 f6 Qb2 f7 Bf5 Ba7 Bd4 Ne2 g1N Rh3 Nf3 Bb6 Nh2 Qg7 Bg1 f8R Ra1 a7 Ra6 Rf6 Rb8 Rf1 d1R Rc6 Rd4+ Kc5 Rc8 Rf2 Rb8 Ng3+ Ke3 Rd2 Rg4 Qg6 Bc2 Qf7 Qc7 Ne2+ Qg3 Qg6 Qf3 Qf5 Rd8 Qh5 Ngf6 Qf5 Nh5 Qf7 Rhg8 h8R Nf4 h7 Ng6 Qf5 Rg7 Rg8 Rf7 h8B Rh7 Be5 Nh8 Bg3 Rh6 Qh7 Qf8 Rc8 Rf6 Rg6 Rf1 Rgc6 Bf2 Ba5 Rh1 Bb6 Bg1 Bd6+
2qN4/N1B3np/BP1rP3/1r2n1q1/1P1k4/B3nnpK/1b3R1p/1B2bQ2 b - - 0 1 legal: proof: a4 a5 c4 b5 h4 bxa4 b4 g5 h5 Ra7 Ra3 Rb7 Rah3 a3 Rh4 gxh4 d4 f5 g4 e5 h6 exd4 g5 Rb6 g6 Rf6 Qd3 Rf7 Qh3 Rg7 hxg7 Ba6 Qg4 Bb5 cxb5 fxg4 e4 Ke7 f4 Kf6 Kf2 c5 Kg2 d5 f5 Ke5 f6 d3 f7 a4 Rh3 d4 Bb2 a2 Rh1 a1B Rh2 d2 Ne2 d1N Nf4 a3 Bc1 c4 Rh1 c3 Be3 h3+ Kh2 a2 Ne6 g3+ Kg1 c2 Nd2 c1Q Rh2 d3 Nb3 d2 Rf2 h2+ Kg2 Bc3 Nbd4 a1N Kh3 Qg5 Nd8 Nh6 g8B Bg7 f8B Nf5 Ba2 Nb3 Bb1 Nc6 b6 Rg8 Nb5 Nbd4 Be2 Nf3 Na7 Bb2 Bf4+ Kd4 e5 Nde3 e6 d1R B8d6 Nce5 Ba6 Qc8 Bc7 Bf6 g7 Rf8 g8Q Ng7 Qh8 Bc3 Rf1 Be1 Rf2 Rf7 Qe8 Rd7 Qf8 Rd6 Qf7 Rc1 Qf8 Rc5 Qf7 Rb5 Qf8 Nef5 Bc1 Ne3 Ba3 Nd2 Bc2 Nf7 Bd1 Ke4 Re2 Bb2 Bc2+ Kd4 Bb1 Ne5 Qf1 Ndf3 Rf2
B2qqr1q/1P1nqRqp/Q1NPn2p/3k2Rb/1R6/2p5/2P1B3/R2K1b2 b - - 0 1 legal: proof: e4 d5 a4 dxe4 f4 b5 Qe2 bxa4 Qd1 e3 Ne2 a5 Na3 e5 Ng1 e4 Nb1 Ra6 Nf3 Re6 Ng1 Re5 fxe5 Kd7 Qh5 Ke7 Qd1 Ke8 g4 a3 h4 Bc5 g5 Qd3 b3 Nc6 g6 Qa6 Nc3 Nb8 Nb5 Qa8 Nd4 Be7 Nf5 Bg5 Bb2 axb2 Nh6 gxh6 hxg5 Qd5 Rh4 Qd3 Rh1 Qd8 d4 Kd7 d5 b1Q b4 f5 e6+ Kd6 b5 c5 e7 c4 e8B f4 g7 f3 b6 f2+ Ke2 a4 g6 a3 Bf7 a2 Qd4 Ne7 g8R Nf5 g7 Qb2 Rh2 Nd7 Qd3 Nd4+ Kd1 e2+ Kd2 Ne6 Rh4 Qbf6 Nf3 e3+ Kc1 c3 Bg2 f1B Rb4 Kc5 Re8 Rf8 g8R Qh8 d6 Ba6 Bh5 e1Q+ Qd1 e2 Re7 Bd3 Ne5 Bg6 Rf7 Qg3 Nc6 e1Q Be2 Bh5 Be4 Qgg7 Bh1 Qeh4 Qd3 Qhe7 Qa6 Qee8 Kd1 Qde7 Rab1 a1Q Bg2 Qa4 Ra1 Q8d8 Bd5 Qgf6 Rg5 Qfg7 Ne5 Qb5 Ba8 Qa4 b7 Kd5 Rb2 Qe4 Nc6+ Qee5 Rb4 Qee8 Rg1 Qeg5 Rg3 Qge7 Rg5+
q2qN1n1/3PqPQp/1r2B1B1/1b5K/P1BpB1n1/2kp1q2/6n1/2R2Nr1 b - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 dxc5 f5 e4 g5 h4 gxh4 c6 f4 Ra3 Kf7 Ra2 Ke8 c4 d5 Be3 fxe3 c5 e5 Rd2 Bd6 Rd4 exd4 cxd6 Bh3 Ne2 Be6 Ng1 Bc8 Ke2 Kf7 Kf3 Ke6 Kg4 Ke5+ d7 b5 f3 d3 f4+ Kd4 e5 e2 e6 e1N c7 b3 f5 h3 f6 b2 e7 h2 e8B Nc6 Kh5 Ne5 g4 Ra6 g5 Rb6 g6 Ba6 c8B Ng4 g7 Ng2 Nc3 b1Q Bg6 Qb4 Ne4 Qbe7 Nd6 Kc3 Ne8 b4 Bb7 d4 Nf3 b3 Nd2 b2 Bbe4 b1Q Rg1 Ne1 Bh3 h1Q Nf1 Bb5 Qe2 Qb2 Qg2 Qf2 Qg3 Ng2 Qe5 N8h6 g8B Qf3 Bc4 Rg8 f7 Rg7 Bef5 Ng8 Bfe6 Nh4 Bg2 Qfa8 B2e4 Qf3 Ng3 Ng2 Re1 Qdc8 Nf1 Qcd8 Rc1+ Kb2 Ra1 Nf2+ Bg4 Ne1 Bgf5 Kc3 Qf6 Qf4 Bh3 Rg1 Qg7 Ng2 Bg6 Qg3 Bhe6 Ng4 Re1 Qf3 Rc1+
1Nr2NnN/K4b2/1BkPp1r1/1r1n2R1/2P2qpN/5nb1/pP3p2/4R2Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 gxh5 d5 e4 dxe4 Bg2 c5 Bf3 exf3 f5 c4 f6 c3 Nxc3 Nxf6 Nb1 Ng8 Kf2 Kd7 Ke3 f5 Kd4 g5 Kc5 a5 d4 a3 h4 f4 c4 a4 h6 a2 h7 f2 d5 f1N h5 g4 h6 a3 Qd3 f3 Qe4 f2 Nd2 Ne3 Ngf3 Ra6 Rh5 Nc6 Nb3 Qc7 Na5 Qf4 Nh4 Ne5 Rg5 Rg6 Nc6 Nf3 Kb6 e6 Qb1 Bd6 Ka7 Kc7 Nb8 Bd7 Bd2 Be8 Qh1 Bf7 Re1 a1R Bc3 a2 Bd4 Rd1 Bc5 Be5 Bb6+ Kd6 Nc6 Kd7 d6 Rd5 Nb8+ Kc8 Ka6 Rb5 Ka7 Nd5 Be3 Nge7 Bb6 Rd8 h8N Ng8 Nc6 Kd7 h7 Rf6 N8g6 Rc8 Nge7 Rg6 h8N Ngf6 Nb4 Ng8 Na6 Rg7 Neg6 Kc6 Nf8 Rg6 Ra1 Qe4 Rd1 Bg3 Re1 Qf4 Nb8+
4NN1r/p1NBK2k/n3p2r/qqP1P2R/2p5/3P4/2b1pn1p/2q1R1NQ b - - 0 1 legal: proof: h4 c5 e4 b5 h5 f5 e5 b4 a3 c4 axb4 g6 Qe2 gxh5 Qf3 h4 Qe4 fxe4 b3 cxb3 c4 d6 c5 Bh3 c6 Bf5 Bb2 Bc8 Bc3 Bh6 Bd4 Be3 Bc5 dxc5 Ra6 c4 Ra1 Bc5 bxc5 Bd7 Ke2 Bg4+ Ke1 Bc8 Ke2 Kf7 Ke3 Kg7 Kf4 h5 Kg5 h3 g4 h2 f4 b2 f5 e3 c7 e2 d3 h4 f6+ Kh7 f7 h3 f8N+ Kg7 Nc3 b1Q Nd5 Qb5 Re1 Bd7 c8N Rh6 Nc7 Nf6 Nd6 Na6 Nde8+ Kg8 Bg2 e6 Bb7 Rb8 Bc8 Bc6 Bd7 Ne4+ Kf4 Nf2 g5 Ra8 g6 Rc8 g7 Rb8 Na8 Qda5 Kg5 Rc8 Nac7 Rb8 Ng6 Kh7 Kf6 Rd8 Ke7 Rc8 Nd6 Rh8 Nde8 Qbb6 Kf7 Ba4 Ke7 Bc2 Nd6 Rh4 Nde8 Qbb5 g8Q+ Kh6 Qf8+ Kh7 Qf4 Rh6 Qe4 Qd2 Nf3 Qda5 Nf8+ Kg8 Rhf1 h1Q Ng1 h2 Qc6 Ne4 Rf5 Nf2 Ng6 Kh7 Rh5 Qe4 Qd5 Qe3 Qh1 Qc1 Nf8+
8/3Pp2K/1QRp2n1/1BR1NP2/p2PR2p/pN1k1nr1/q1bpr3/6Rq b - - 0 1 legal: proof: e4 a5 b4 f5 h4 fxe4 a4 b5 h5 bxa4 h6 a3 Bd3 a4 Qg4 gxh6 Qf5 h5 Bf1 h4 Qf3 Bh6 Qd1 Be3 d3 d6 Ke2 Kf7 Bd2 Bb6 c4 Ba5 c5 Qe8 c6 Qd7 cxd7 c5 bxa5 c4 Bf4 c3 Bd2 cxd2 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 f4 h5 Kg6 h3 g4 h2 a6 h4 f5 e3 a7 e2 g5 e1Q Ne2+ Ke3 d4 Rh7 Nbc3 Rh5 Qb1 Ba6 Qb6 Kd3 Rc1 Nh6 Kh7 Bb7 g6 Be4 g7 Nc6 g8R Ne5 Rgg1 Nf3 Nd5 Rg5 Rc5 Rg3 Ne3 Ng4 Nc4 Rg8 a8R Qa1 Rac8 Nge5 R8c6 Qa2 Nc1+ Kc2 Qa5 Ng6 Qb6 Kc3 Be2 Bc2 Nb3 Rg2 Bf1 Re2 Rg4 Kd3 Rhg1 h1Q Re4 Rg7+ Kh6 Nh8 Na1 Rg3 Kh7 Kc3 Nb3 Re3 Be2 Ng6 Nca5+ Kb2 Ba6 Re2 Nc4+ Kc3 Bb5 Kd3 Ne5+
3R4/1br2B1k/2br2qN/2N2PQn/2RqP1Rn/1R2P3/2K1n1q1/b3qnn1 b - - 0 1 legal: proof: g4 e5 h4 a5 c4 d5 b4 axb4 h5 dxc4 d3 f6 h6 e4 dxe4 gxh6 g5 h5 g6 h4 Bg5 fxg5 a4 h5 g7 Kf7 a5 Kg6 a6 b5 f3 c5 a7 g4 Qd6+ Kh7 Kd2 h3 Nc3 b3 Ra6 h2 Ra5 b4 Ra1 h4 Ra6 h3 Na4 c3+ Kd1 c4 Ra5 g3 Re5 g2 Rg5 b2 Rb5 b1N Qd5 c2+ Kc1 b3 Qh5+ Nh6 g8R Qd4 Qc5 Nf5 Qd6 Nd2 Qf6 Nd7 Qe6 Nf6 Nb2 Nh4 Ra5 Nh5 Qf7+ Bg7 Rc5 Bb7 Qd5 Rd8 a8R Rd6 Rgb8 Rc8 Na4 Rc7 Qg5 Bf6 Nc3 Bc6 Kb2 c1N Rd8 Bh8 Rac8 Bb7 Rf5 Bc6 Rf4 Bf6 Rg4 Bb7 Ka3 b2 Na4 b1Q Nc5 c3 Rb8 Bc6 Rb4 c2 Rc4 Ncb3 Kb4 Bg7 Ka3 c1Q+ Kb4 Qe1 Ka3 Qd5 Kb4 Nd4+ Kc3 Qb6 Kd3 Qf5 Kc3 Qg6 Kd3 Ndf5+ Kc2 Nfg3 f4 Ba1 Nd3 Qef2 Ra4 Qbc5+ Kd1 Qcd4 e3 Bb7 Ne2 Qf3 Rg1 h1B Nc5 h2 Kc2 Qf2 Nc1 Bc6 Bd3 Bb7 Rd1 Qe1 Ne2 g1N Rb1 Bg2 Bc4 h1Q Rb3 Bf1 Bf7 Qg2 Rab4 Qdg7 Nd4 Bb5 Rc4 B5c6 Nf5 Qd4 Nh6 N3e2 f5 Nf1 Rbb4 Bb5 Rb2 B5c6 Rb3
K2nBbn1/4B2n/6b1/1N2kqP1/QN3P1r/n3BRr1/p1Pqb1q1/1n1B4 b - - 0 1 illegal: No possible last move
n5B1/1nn1N3/4PPr1/1nrn2qb/4N3/1n2R1P1/k2pNNbQ/q1nK2R1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 g5 cxd4 g6 e5 Ba3 e4 Nh3 e3 Ng1 fxg6 Bb2 g5 Bc1 g4 Nf3 g3 Bd2 g2 Ne5 g1N Nf3 Nh6 Bg2 exd2+ Kf1 Ng8 Bh3 Be7 Kg2 Kf8 Kg3 Kf7 Bf1 Ke8 Kg2 Bf8 Kg3 g5 Kg4 Bd6 Kf5 g4 Ke4 g3 Kd3 g2 Qe1 Qb6 Qd1 Bg3 hxg3 Qd8 e4 Ke7 a4 Kd6 c4 Kc5 Kc2 h5 e5 b5 a5 d5 e6 b3+ Kb2 Kb4 c5 h4 a6 d3 c6 d4 a7 h3 c7 h2 Ne5 Bb7 c8N Rh6 f4 Rg6 f5 Nf6 Qf3 d1N+ Kc1 b2+ Kd2 Kb3 Qe4 b4 Nc6 Nd5 Nd6 N1c3 Qe1 Na6 Ra5 Nac7 Ra6 Nb6 Qe5 Rc8 a8N N3d5 Ra5 Ne2 Nb5 g1Q Qe4 Nc1 N5a3 Ka2 Ra4 b3 Qe3 Qg5 Kd1 d2 Ne5 Bc6 Rc4 Be8 Nb5 Bf7 N1a3 b1N f6 b2 Nc2 Na3 Qf4 b1N Rc3 Nac4 Ng4 Na5 Nd6 Nb7 Nf2 Be8 Qe5 Bf7 Qe1 Be8 Bd3 Qf1 Rg1 h1B Na1 Bg2 Nb3 Bf7 Nde4 Be8 Kc2 d1N Qe2 Nd2 Qh5 Bf7 Qh2 Be8 Ba6 Qe1 Re3 N1c3 Bc4 N3b5 Bd3 Na6+ Nc7 Na8 Nbc5 Ndb3 Na4 Qc3+ Kd1 Qa1 Bc2 d3 Nac3+ Ka3 Ne2 d2 Bd3 Ka2 Bc2 Rg8 Bd3 Bh5 Bc2 Rg6 Bd3 Ndb6 Nd5 N6c7 Ne7 Nbd5 Nd6 Rg7 Bh7 Rg6 Bg8 Ne8 Ng4 Rc5 Ne4 Nec7 Ngf2
4B3/1n1Pqp1n/r1bnrP2/rBP3bB/4n2b/1kRB1N1N/b3Q3/K3b3 b - - 0 1 legal: proof: e4 a5 b4 axb4 a4 c5 h4 d5 Qg4 dxe4 Ba3 g6 Qd1 g5 hxg5 bxa3 Ra2 Bh3 Rb2 Bc8 Rb4 cxb4 c4 Kd7 g4 Kc6 d4 e5 Kd2 h5 Kc1 b5 f4 b3 a5 e3 g6 b4 f5 b2+ Kc2 b3+ Kc3 e2 g7 e1B+ Nd2 b1N+ Kd3 a2 c5 Kd5 a6 a1R g5 e4+ Ke2 e3 Kd3 h4 a7 h3 g6 e2 Ne4 b2 Kc2 Kc4 d5 h2 d6 Nf6 g8B Nc6 g7 Nc3 Bg2 b1B+ Kb2 Bh4 Bh3 e1B Nf3 Qe7 Nf2 Nb5 Bh7 Bb7 g8B Ra5 Bg4 Ba2 Ka1 Bh6 Qe2+ Kb3 Nh3 Nd8 Bh5 B6g5 Rg1 h1N Rg3 Bc6 B7g6 Ne4 f6 Nhf2 B8h7 Nb7 Bf5 Rhe8 Bd7 Nc7 B7g6 Ne6 Bf5 Nf8 Bfg6 Nd2 Bd3 Nh7 Bb5 Nc4 Bf5 Rac8 a8B Ne4 Bd7 Nd8 Bb7 Rca8 B7a6 Nb7 Bf5 Qc7 Bd7 Re6 Be8 Qe7 d7 Ncd6 Bd3 Ra7 Bab5 R7a6 Rg1 Bed2 Rc1 Bde1 Rc3+
3Q3K/q4kB1/r1bnp3/bN1bb3/1RrB3P/1bP1P1nq/BB1R2r1/6r1 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 b4 h5 Ra4 a5 Nd2 axb4 Ne4 h4 Ng3 hxg3 Ra2 Rh7 Ra1 Rh8 Kd2 d5 Kd3 g5 h4 e6 f4 b3 f5 g2 b6 b2 b7 b1Q e3 g3 f6 g4 Bd2 Qe7 Ba5 Kf7 Qe2 Bd7 Qd1 Nh6 Qd2 Ra6 Qf2 Bc6 Be1 Nd7 b8B Nc5+ Ke2 d3+ Kd2 d4 c3 Qa7 Qf4 Nb7 Qg5 Nf5 Ra3 Bb4 Ra2 Rc8 Be5 Nbd6 Be2 Ba5 Nf3 g1R Bd1 g2 Bb3 g3 Rh2 Be4 Ra4 Bd5 Rb4 Rc4 Ba2 Qa1 Qh6 Bc6 Qh8 Qb1 Qd8 Qa1 Bf2 Qf1 Be1 Bd5 Kd1 d2 Kc2 d1B+ Kd2 d3 Nd4 Qe7 Nb5 Bb3 Bd4 Bc6 Qb6 Qa7 Qd8 Kg6 f7 Bd5 f8B Kf7 Kc1 d2+ Kb2 d1B Bd2 Be2 Bfg7 Bef3 Bc1 Bc6 Ka3 Bfd5 Bb2 Qf3 Bf8 Qg4 Bfg7 Qh3 Bc1 Re1 Bb2 g1B Rc2 g2 Rd2 Ng3 Ra4 Bd1 Rb4 Bg4 Kb3 Bh2 Kc2 g1R Kd3 Rg2 Bb6 Rc5 Kd4 Rc4+ Ke5 Bd1 Bd4 Bb3 Bf8 Kg8 Kf6 Rf1+ Kg6 Rfg1 Kh6 Kf7 Kh7 Ne2 Kh8 Be5+ Bg7 Ng3 Bc1 Bf6 Ba3 Be5 Bb2
2bkq3/2B4Q/n3qqR1/R1r1n1bn/1pP5/R2q3P/N2bP2R/b2KBr2 b - - 0 1 legal: proof: g4 f5 b4 a5 d4 axb4 d5 e5 d6 h5 gxh5 cxd6 Nc3 d5 Na4 e4 Nc5 d4 Nd3 exd3 Bh3 Qf6 Bg4 fxg4 Be3 Qb6 Bc1 Qd8 f4 d5 c4 b5 a4 g5 h6 b3 h7 b2 h3 b1Q f5 b4 a5 d2+ Kf1 d3 f6 d4 a6 g3 a7 g4 Ba3 g2+ Kf2 g3+ Kf3 Bg7 Qb3 d1N Qc2 d2 Bc1 d3 Rh2 Nf2 Ra2 d1Q Bb2 d2 Qc1 Qf5+ Ke3 Na6 Qb1 Qe6+ Qe4 Qf1 Ba1 d1Q Bc3 Nd3 Ra5 Ne5 Nf3 g1B+ Rf2 g2 f7+ Ke7 f8R Qe8 Ne1 Kd8 Nd3 Nf6 Rg8 Nh5 Be1 Bf6 Rg3 Rf8 h8B Bh2 Qh4 g1B Nc1 Qdd5 Rg6 Bg5+ Qf4 Rb8 a8R Rb5 Na2 Rc5 Ra7 Qf3+ Kd2 Qd3+ Kc1 Bg3 Rh2 Bd4 Qe3 Rf4 Qe4 Ba1 Qb7 Bf2 Qh7 Bfd4 Ra8 Bdc3 Ra7 Bd2+ Kd1 Rf7 Bg7 Qff6 Bh6 Bh4 Bf4 Bg5 Ra3 Qfh8 Bfg3 Rf1 Bf4 Qhf6 Bg3 Nb8 R7a5 Na6 Bf4 Nd7 Bb8 Ne5 Bc7+
BB1r1Nb1/RKnb1bB1/3PNP2/8/qQ1Pp3/3B2bn/2kr4/1nq2n1q b - - 0 1 legal: proof: b4 a5 g4 axb4 c4 c5 a4 h5 e4 hxg4 e5 d5 cxd5 c4 e6 fxe6 Ra3 e5 Rg3 e4 Rb3 cxb3 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 b5 d4 g5 f4 b2 h4 b3 a5 e3 h5 Ke4 h6 b4 a6 e5+ Kb5 g3 h7 e2 f5 e1Q f6 g2 a7 g4 Bh6 g3 Bc4 Qe8+ Kb6 Bd7 Bg5 Na6 Bf4 Ne7 Rh5 Rd8 a8B Nf5 Bf1 Bd6 Ne2 g1N Bh6 g2 Bf8 Ng3 Rg5 Nh3 Nf4 g1Q Be2 Nf1 Bb7 Qh1 Bc6 Nc7 Na3 b1N Rg8 b2 Ba8 b3 Qd2 Qc1 Rg7 Rg8 Rf7 Rg2 Qb4 Rh2 Ba6 Rd2 h8B Ke3 Bhg7 e4 Ng6 Bg3 Nb5 Kd3 Bc5 Kc2 d6 Na3 Bc8 b1B Kb7 b2 Nf8 Ba2 Ba7 b1B Bb8 Bc4 Re7 Bg8 Rf7 Ba2 Re7 Nd5 Nc7 Nb1 Nce6 Nc7 Rf7 Bb3 Re7 Qh5 Rf7 Qa5 Re7 Qa4 Rf7 Be8 Bd7 Bc4 Bb5 Bd7 Re7 Bb3 Bd3+ Kd1 Bh6 Ne8 Nc5 Bf5 Bg7 Bbf7 Re5 Bd7 Nce6 Nc7 Rh5 Qf3 Ra5 Qh1 Bb5 Kc2 Ra7 Rd1 Be2 Rd2 Bd3+
K5N1/2r2b1P/1bpnnB2/PQrbq2B/q3N1q1/2N1k2P/n2R3N/bn6 b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 f4 dxc4 g4 h5 gxh5 e5 Ra2 exf4 Ra3 bxa3 Kf2 Ke7 Kf3 Ke6 Ke4 b5 d4 g5 h3 f5+ Kf3 Kd5 h6 c3 h7 g4+ Kg2 Ke4 e3 b4 d5 a2 a5 a1B d6 f3+ Kg3 f4+ Kf2 c2 d7 b3 Bg2 b2 Qd6 g3+ Kf1 Nc6 Qd1 Ra7 Qd6 Qe7 d8N Nd4 Ke1 Nh6 Kd2 Be6 Kc3 Nhf5 Kb4 Bf7 Bd2 c1N Kc5 Na2 Nb7 c6 Kb6 Rg8 Bf1 g2 Qc5 f2 Bc3 f3 Qb5 Rg5 Be2 f1B Rh2 f2 Bh5 B1c4 Nf3 g1Q Nd6+ Kd3 e4 f1Q e5 Qd1 e6 Qa4 Re2 Qg4 Rd2+ Ke3 Nh2 Rc7 Ne4 Qe8 Ka6 Bc5 e7 Qh8 e8N Ne6 N8f6 Nd6 Be5 Bb6 Ng8 Qf6 Bc3 Rc5 Be5 Qff4 Bf6 Qe5 Nbc3 b1N Bh4 Ne8 Be7 Bd5 Bf6 Rc8 Kb7 Rc7+ Kb8 Nd6 Ka8
3B2n1/nbN2q1n/Qr3BPn/k2Prrpn/4Rq1R/2n5/2P5/KB3Bn1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 a5 f5 axb4 e3 d5 f6 d3 Nh3 d2+ Ke2 gxf6 Ng1 f5 Bb2 f4 Ba3 Be6 Bc1 Bc8 g4 h6 g5 d4 g6 d3+ Kf2 Qb6 Nc3 Bg7 Ne4 Qd8 Ng5 Bd4 exd4 hxg5 h4 Rh7 a4 Kd7 h5 Kc7 d5 Kb6 h6 f5 Qg4 d1N+ Ke1 e5 Kd2 e4 Qg3 f3 Rh2 e3+ Ke1 b3 Ba3 e2 Kd2 e1N Kc1 f4 Kb1 b2 Qf2+ Ne3 Be7 d2 Rh4 d1N Qg2 f2 Ba3 f3 Qh2 Qe7 Rh5 Nd7 Ne2 Ng4 Rh3 Ndf6 Ra2 Rf7 h7 N4h6 h8B Nh7 Bg7 Rf5 Rh4 Qf7 Bh3 f1Q Qf4 f2 Qc1 Nf3 Nf4 Ng1 a5+ Ka6 Be5 b5 Be7 b4 Ne6 Bb7 B5f6 Re8 Ra4 Qc4 Bd8 f1N Qe3 Ng3 Bf1 Nh5 Qa7+ Kb5 a6 Re7 Bh3 Qf4 Ka2 b1N Ka1 b3 Re4 Re8 Nc7+ Ka5 Bf1 Ree5 Qa8 Na3 a7 Nc3 Qc8 Bc6 a8B Nab5 Bb7 Na7 Bba6 Ba8 Qe6 Bb7 Qd6 Na4 Bac4 b2+ Ka2 b1R Qc6 Rb6 Ka1 Rb2 Ba2 Nc3 Bb1 Rb3 Qc4 Rb6 Qa6+
q1r2N1n/3K1N2/5P2/qRq1N1rk/bq2rP1q/2BP1Q2/1n1pq3/3Nn2B b - - 0 1 illegal: No proof kernel
2r4r/4qn2/6NB/BP2P1qn/3rP3/BKn1rk1B/1RR2prQ/1b4nq b - - 0 1 legal: proof: a4 d5 g4 b5 c4 bxa4 d4 h5 e3 hxg4 Nc3 e6 Nb5 Bc5 e4 dxc4 d5 Be3 fxe3 e5 Nd4 exd4 Kd2 Ke7 Kc2 Kd6 h4 Ke5 b4 g5 h5 f5 d6 c5 d7 a5 h6 f4 h7 c3 b5 a3 Rh3 d3+ Kb3 g3 Kc4 d2 Bd3 c2 Rh5 g2 Kb3 c4+ Ka2 a4 Rh6 c3 Qe2 d1N Bd2 c1R Qe1 g4 Ne2 g1N Rh4 f3 Rh1 f2 Rb1 g3 Bc2 g2 Bb3 c2 Rb2 Qe7 d8B Nf6 B8a5 Nh5 Bd8 Bf5 Qf1 Nd7 Be6 Rc8 Rb1 Nc3+ Ka1 a2 Kb2 a1R Ba5 a3+ Kb3 a2 Bc4 Re1 Be6 c1Q Rb2 Rb1 Nf4 a1Q Rh4 Bg6 Bh3 Rd1 Be1 Rd4 Bb4 Qa8 Ba3 Qc6 Bd2 Qcf6 Qe2 Qg5 Qg4 Qf1 Qg3 Re1 Rg4 Nge2 Rh4 g1R Qh2 Rg2 Rg4 Bf5 Rg3 Qh1 Ng6+ Kf6 Rg4 Ne5 Rh4 Nf7 e5+ Ke6 Rc2 Kd5 Rf4 Nd1 Ba5 Ng1 Rf3 Ke4 Rb2 Rhf8 h8B Nc3 Bg7 Rh8 Bh6 Re2 Rg3 Re1 Rg4+ Kf3 Rh4 Bb1 Re4 Rdd8 Rc4 Rd4 e4 Re3 Rc2 Rd5 Rd4 Rd6 Rdd2 Rd7 Rb2 Rd4 Rdc2
r5n1/6P1/N1Rb3k/4n1r1/1bnp1P2/Nbn2bN1/5rPR/1NnBKQ1b b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 g5 b4 c5 f3 cxd4 b5 g4 b6 g3 Bg5 axb6 Bd2 b5 Be3 b4 Kd2 Qa5 Bf2 Qg5+ hxg5 gxf2 c4 Kf7 a4 Kg7 g6 h5 a5 d5 c5 e5 c6 b5 c7 h4 f4 e3+ Ke2 d3+ Kf3 d4 a6 e2 a7 e1N+ Ke4 b3 Qh5 d2 Ra3 d1B Qe2 h3 Nc3 b2 Ra5 b1N Qa2 b4 Rc5 h2 Rb5 b3 Qa4 b2 Be2 f1R Qb3 Rh5 Rc5 Bg4 c8N Bd6 Rc6 Rg5 Nb6 Kh6 g7 Nd7 Qb5 Nd3 Nc4 Bb3 Na3 Rf2 Bd1 Nc1 Nge2 Bh5 Ng3 Be2 Nc2 Na3 Nh5 Nc4 Na3 b1N Qa6 Rf8 a8N Rc8 Nc7 Ra8 Re1 Bg4 Re3 h1B Rh3 Be2 Rh2 Bg4 Qa4 Be2 Na6 Bg4 Qb5 Be2 Kd5 e4+ Ke6 Nde5 Kd5 e3 Ke4 Nb2 Qd3 Bg4 Qe2 Nbc4 Qf1 e2 Nc2 Nba3 Nb1 Nb5 Nca3 e1B Rh4 Nd7 Rh3 Bb4 Rh2 Ne2 Kd3 Bf3 Rh4 Nbc3 Rh2 Ncb6 Kd2 Nc1+ Ke1 Ne5 Rh3 Nbc4 Rh4 Bc5 Rh2 Bb4 Ng3+
2B3rn/1B3P1N/qPQ1p2B/2n3q1/1Kn2n1r/PbN1k2n/3pb1R1/1Bq5 b - - 0 1 legal: proof: c4 f5 b4 b5 e4 fxe4 h4 bxc4 a3 g5 b5 gxh4 Nc3 a6 Nb1 a5 Nc3 c5 Rb1 Bg7 Rb4 axb4 Nb1 c3 d3 c4 d4 Be5 Qd3 Bd6 Qd1 Bc5 dxc5 Qc7 Rh2 Qb6 Rh1 Qd8 f4 Kf7 g4 Ke6 b6 h5 f5+ Ke5 f6 d5 g5 d4 g6 e6 f7 e3 g7 Ke4 c6 h3 c7 e2 Bd2 b3 Bg5 b2 Be7 h4 Bb4 d3 Nf3 h2 Be7 h3 Bd6 c2 Kd2 e1N Kc3 c1Q+ Qc2 Ne7 g8B Rh4 Ng1 Ng6 Be5 Ng2 Be2 Qcg5 Bh7 Na6 Qd2 Nc5 Bg8 Ba6 c8B Nh8 Bf6 Nf4 Qd1 Ke3 Bb7 Qc8 Kb4 c3 Bd8 c2 Nd2 b1N Bh7 c1Q Ne4 Nd2 Qc2 Nc4 Nf3 d2 Rg1 h1B Rg2 h2 Nc3 Bb5 Bf1 Ba4 Be7 Bb3 Bf8 Rb8 Bh6 Ra8 Bc6 Qa6 Bb7 Rf8 Bfd3 Rg8 Bhe4 Qd5 Bc8 Qg5 Rf2 Bg2 Beb7 Bf1 Rg2 h1N Bg6 Be2 Bd3 Qg4 Ng5 Nf2 Nh7 Qg5 Bf5 N2h3 Bfe4 Ba2 Qa4 Bb3 Qc6 Qf1 Bc2 Qc1 Bb1
rN6/1nP2n1R/1q1rqr1P/N1R3r1/KB1p1N1b/b6P/1kpr4/2Q1bN2 b - - 0 1 illegal: No proof kernel
nR1k3r/2r4b/1rP3Qp/P7/1pq5/2B1nbq1/BP1rR1q1/K2RbN1R b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 c5 d4 cxd4 h4 g5 Qd2 gxh4 Qb4 axb4 Na3 bxa3 Kd2 e5 g4 d5 f4 b5 c4 e4 Kc2 a2 g5 h6 f6 e3 f5 e2 g6 e1Q a5 d3+ Kb3 d2 c5 d1R g7 d4 Bc4 h3 Ka3 d3 Be3 d2 Ne2 h2 Bd4 Nd7 Nf4 Nb6 Be6 Ne7 g8Q Qc7 f7+ Kd8 f6 Ned5 Nh5 Rb8 Ng3 Ne3 Nf1 Qeg3 Rg1 h1Q Rb1 Qhb7 Rh1 a1R+ Kb3 Qbg2 c6 Qcf4 Qg5 Bb4 Bd5 Bf5 f8R+ Kc7 f7 Na8 Rd8 Bh7 f8R Rb6 Rb8 Bc3 Qg4 b4 Qg6 Qfg4 Rf4 Q4e2 Rb7+ Kd8 Rc1 Rb1 Ka2 Qa6 Bb3 Qc4 Nh2 Rf1 Rf2 d1B Bg7 Bh5 Re2 Be1 Bc3 Rf7 Nf1 Bf3 Qe6 Rc7 Qg6 Bd2 Rce1 Rc1 Rd1 Rc2 Ka1 Qcf4 Rb1 Be1 Rd1+ Rd2 Ba2 Qc4 Rb8+
1K3Rkn/1p1b2P1/5B2/P1P3p1/2qBr2N/2Qn2n1/Br2B1r1/1bbNb1q1 b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 fxg5 cxd4 b4 axb4 Nh3 f5 Ng1 fxe4 g4 h6 a4 Na6 g6 Qa5 g7 Qe5 g5 Qa5 g6 Qd8 Ra3 Nb8 Rg3 Ra7 Rg2 Ra8 Rg5 hxg5 Kd2 e5 h4 d5 c4 d3 Ke3 d2 a5 b3 h5 d4+ Ke2 b2 h6 e3 Kf3 e2 Ke4 e1B h7 d3 Ne2 Bd7 Kd5 e4 Rg1 e3 Nbc3 b1B Na4 Qc7 Nc5 Nc6 Rg2 Ne5 Qc2 d1R Bb2 d2 Nd3 Ba3 Ng1 e2 Nf2 Nh6 g8B Kf8 Qc3 Re8 Rg4 Nef7 Nf3 Nf5 Rf4 Re4 Nh4 Ng3 Rf5 Rc1 Nd1 Rc2 c5 Qf4 Ba1 Bc1 Rf6 Rb2 Rf5 Bf2 Rf6 e1N Be2 Qg4 Rf3 Nd3 Rf6 Kg7 Rf4+ Nfe5 Kd6 Be1 Kc7 Qe6 Rf1 Qc4 Bf7 Re8 h8B+ Kf8 Be6+ Nf7 Bd4 Kg8 g7 Rg4 Bd5 Re3 Kb8 Ree4 Bc6 Nh8 Rf7 Nf1 Ba4 Rg2 Bb3 Ng3 Ba2 Bf2 Ne3 d1Q Bf6 Qf1 Nd1 Qg1 Qa3 Rd2 Bad4 Rb2 Qc3 Be1 Rf8+
1nb5/1pqP3K/3k2r1/1qB2rP1/1B3Nb1/Pn3BrN/B2qQ1np/3R3q b - - 0 1 illegal: No possible last move, all moves rejected
3q1N1Q/1bqB4/4n1r1/1RR2Pr1/RBrb2P1/1bk1n1r1/b2pP1pK/R7 b - - 0 1 legal: proof: h4 f5 a4 e5 g4 g5 d4 gxh4 d5 b5 axb5 e4 d6 f4 Qd3 exd3 Nd2 cxd6 Ne4 d5 Ng3 fxg3 Bg2 d4 Bh3 Nh6 Bf1 Ng8 f4 Ke7 c4 Kd6 b4 h5 f5 Ke5 c5 d5 b6 a5 c6 a4 c7 d2+ Kd1 a3 b7 a2 b5 h3 b6 h4 Bb2 h2 Ba3 h3 Rc1 a1Q Rb1 Ra6 Rc1 Nc6 b8Q Rh5 b7 Rg5 Qa7 Nf6 b8R Bg7 Qa8 Be6 c8R Qc3 Rb2 Ra4 Rb3 Rc4 Nf3+ Ke4 Rg1 h1R Bg2 h2 Re1 Rg1 Rb4 h1B Ra4 Qca5 Rb4 Qac7 Rc3 Bh8 Kc2 d1R Rb3 d3+ Kb2 d4 Rf1 d2 Kc2 Nd5 Rb5 Ra1 Rc1 d1B+ Kd2 d3 Nh4+ Kd4 Ng6 Ne3 Nf8 Bb3 Rf1 Ra2+ Ke1 Bf6 Rc2 Bg8 Rb2 Kc3 Rd2 Nd4 Bc6 Bhd5 Bd7 Bb7 Rd1 Rc2 Ra1 Ne6 Qb8 Rg2 Rf4 Rc6 Ra4 Bd4 Qa7 Rc4 Qc5 Rb2 Qe5 Ba2 Qh8 Rb3 Ra7 Rh2 Raa5 g2 Kf2 d2 Kg1 Rh6 Ra4 Rhg6 Re5 Rb1+ Kh2 Rf1 Rb8 Rf3 Rc8 Rg3 Rb5 Nc5 Rca8 Bgd5 R8a5 Ne6 Rc5 Be4 Rab5 Bc2 Rd5 Bd1 Rdc5 Bdb3 Bb4+
4Rrqb/kP2NBQ1/4np1P/3Bb3/N1pP1r1B/n2qr2r/1n2B1K1/6n1 b - - 0 1 legal: proof: c4 b5 g4 e5 a4 bxa4 g5 d5 g6 dxc4 Na3 hxg6 Nb1 g5 Qb3 g4 Qc2 Nd7 Qd1 Nb8 b4 e4 d4 Be7 Ra3 Kd7 Rd3 exd3 e4 Bf8 e5 Bb7 f3 Be4 fxe4 Ke8 Kf2 Kd7 h4 Kc6 b5+ Kb7 e6 a5 b6 c5 e5 g5 h5 d2 e7 c3 e8B g3+ Kg2 c4 e6 c2 e7 g4 Bb5 f6 e8B a3 Bf7 a4 Bd3 a2 Bdg6 a1Q Be4+ Nc6 Be8 a3 Qe2 d1N Bf4 c1R Bh7 a2 Qd2 Rc3 Qf2 Nh6 Be5 Na7 Nf3 Nf5 Kf1 g2+ Kg1 Ng7 Nbd2 Nb2+ Nf1 Re3 Bg3 Ne6 Nh4 Bg7 Ng6 Qb1 Bh4 a1R Bf7 Qd3 Qg3 Qg8 Ne7 Rf8 Bc6+ Ka6 b7 Nb5 Bhe4 Na3 Bf3 Ka7 Be2 Ra2 Kf2 g1B+ Kg2 Bh2 Nd2 Ra1 Nb3 Rf1 Nc5 Rf4 Rc1 Rh7 Rc2 Bh8 Na4 Rh6 Bd5 Rh7 Qh3 g3 Qg4 Rh6 Rc1 Rh7 Re1 Rh6 Kh3 g2+ Qg3 g1N+ Kg2 Rfe4 Qg6 Be5 Qg7 Rf4 Kh2 Rg6 h6 Rgg3 Kh1 Rgf3 Kg2 Rh3 Rb1 Nd1 Rb6 Nb2 Rd6 Kb8 Rd8+ Ka7 Re8
3Q1N2/P1P1Pnrq/pRn1RK2/qb1pr3/2N2kN1/1b1b1BrN/7p/2r5 b - - 0 1 illegal: No proof kernel
4nR1B/bn3B2/n1kB2N1/1PnqpqRb/p3nP2/3BP3/1p1n1rQ1/4K3 b - - 0 1 legal: proof: g4 h5 d4 hxg4 d5 f5 d6 f4 Nc3 cxd6 Ne4 d5 Ng3 fxg3 Qd2 d4 Qd3 Rh6 Qd1 Rh8 a3 a5 Kd2 b5 Rb1 b4 Ra1 b3 Ke1 Ra7 Bh3 Rb7 Bg2 Rb4 axb4 Qc7 Bf1 Qc3+ Bd2 Qxb2 Bf4 Qb1 Bc1 Qb2 h4 d5 f4 Kd7 c4 e5 e3 g5 c5 g2 h5 a4 h6 g3 h7 d3 Rb1 g4 Rh4 d4 Bd2 Qa2 Ra1 b2 Bc1 d2+ Ke2 Kc6 Rb1 Na6 Nf3 g1N+ Kd3 g2 Rh1 g3 Rh4 Ne2 Ra1 g1N Ne1 g2 Rb1 Nc3 Ra1 Bg4 Rh3 Ne4 Rh5 Qd5 Rg5 Nf3 Ke2 g1Q Ng2 Ngf6 Qc2 d1N Bd2 Nd6 Bc3 Nfe8 Rc1 Nf2 Nh4 Nfe4 Ng6 Nfd2+ Ke1 d3 Bd4 Nb7 Rd1 Rg8 h8B Bh5 Rc1 Qg4 Rd1 Nc4 Qg2 Ncd2 Be2 Qf5 Bf1 Kb5 c6 Nec5 c7 Kc6 c8B Bd6 Be6 Bb8 Bf7 Ba7 Nf8 Nb1 Ng6 d2+ Kf2 Rg7 Bd3 Rh7 Rc1 d1N+ Ke1 Ndc3 Rd1 Nd2 Rc1 Nd7 Bc5 Nce4 Bd6+ Ndc5 Rc3 Bd1 Rc2 Rh3 Rc1 Bh5 Rc3 Rf3 Rc1 Kd7 Rc2 Rf2 Rc1 Ncb3 Rc8 N3c5 Rd8+ Kc6 Rb8 Ng7 Rf8 Ne8 b5+
R1bb2R1/2N1R1r1/1BP1nr1p/b1R1BP2/rpq2n2/pb2KPQ1/3p4/3k4 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 g5 h4 gxh4 b5 f5 exf5 a6 a4 Qc7 a5 Qc5 b6 Qc7 Bb5 Qd8 Nd2 axb5 a6 Nf6 a7 Kf7 Ne4 Ng8 Nc5 Ke8 Na6 bxa6 Kd2 Kf7 c4 Kf6 g4 Ke5 g5 Kf4 g6 d5 c5 e5 b7 a5 f3 e4 g7 d3 c6 d4 Qb3 e3+ Ke1 h6 Qb2 d2+ Ke2 d1B+ Kd3 h3 Rb1 a4 Qf2 a3 Rh2 Be7 Rb3 Nf6 g8R Na6 b8B+ Nc7 Qe1 Nd5 Rc3 Bb3 Rg6 Rf8 Rgg2 Rf6 Ke2 d3+ Kf1 Qg8 Qe2 Bd8 Rh1 h2 Qe1 Qe6 Bb2 e2+ Kf2 Qe4 Rg8 Qc4 Kg2 Ke3 Nh3 Ne6 Qg3 Kd2 Kf2 Ndf4 Re1 h1R Be5 Rg1 Ng5 Qd5 Rc5 Qc4 Bbd4 Kc2 Ra1 e1B+ Ke3 Bea5 Re1 b4 Re2+ d2 Re1 Nf8 Ne6 Rg2 Nc7 N8e6 Qh2 Rg7 Qg3 Rb8 a8R Rb6 Rh1 Ra6 Rh4 Kd1 Rg4 Rh7 R4g7 Ra7 Re7 Rg7 Rb5 Bb6 Rc5 Ra4 Rd5 Ba5 Bb6 Kc2 Rb5 Kd1 Rc5
1RK5/3RP1Q1/RbBNr1pp/2R1p3/P2r1P1B/2rb1rn1/k3pq2/q1n5 b - - 0 1 illegal: No proof kernel
R2r1r2/1B1B4/8/2ppn1K1/2pPkpRQ/nN1br1r1/PP4RR/5rqq b - - 0 1 illegal: No proof kernel
2R3KR/2P3Rp/3b1Q1p/2PPn2b/rkn4q/1R3N2/p3pN2/nq3nnB b - - 0 1 illegal: No proof kernel
Rr6/bP1B1pb1/RP1p1n2/qB5q/1p1N2pb/RP6/3knR1K/b2b1Q2 b - - 0 1 illegal: Other
1q1n2Kn/1Q3n2/bpbP2p1/PNN1N1Rr/1b1pB1p1/1P6/2p2b2/3k2NB b - - 0 1 legal: proof: g4 h5 b3 hxg4 Bb2 a5 Ba3 a4 Bc1 a3 c4 d5 Nc3 Ra5 Rb1 Ra7 Rb2 axb2 a4 Ra5 Nb1 Ra8 d4 dxc4 d5 e6 Be3 e5 Bd4 exd4 f4 Nc6 e4 Na7 d6 Nc6 e5 Ra5 e6 Re5+ fxe5 Nb8 Kd2 c5 h4 f5 a5 g6 e7 Kf7 e8B+ Ke6 h5 Kd5 e6 Ke4 e7 c3+ Kc2 Ke3 h6 b6 h7 f4 Na3 b1B+ Kc1 c2 Kb2 c1B+ Ka1 c4 Bg2 f3 Nb5 f2 Bd7 f1N e8N c3 Rh4 Ba6 Rh3+ Ng3 Bf5 Be4 Ka2 c2 Rh5 Bd2 Bh1 Nc6 Rg5 Be7 Nf6 Bb4 Nd7 Qb8 Qf3+ Kd2 Nc5 Nd8 Kb2 Bc6 Be4 Nh6 Qf7 Bc3+ Ka3 Kd1 Qg7 Bf6 Qb7 Nhf7 Ka4 Be1 Ka3 Bf2 Kb4 Nf5 Kc4 Bg7 Qe7 Bh6 Qb7 Re8 h8N Re5 Rh5 Bd2 Rg5 N7h6 Nf7 Bb4 Rh5 Rd5 Ne5 Nhf7 Rg5 N5h6 Ned7 Rf5 Ne5 Bd7 Kd5 Nh8 Qc7 Be8 Qa7 N6f7 Qb7 Nc6 Ke6 Ncd8+ Ke7 Bc6 Kf8 Rf3 Qc7 Rh3 Kg8 Rh5 Qb7
B1RN1Q2/7B/p2P4/3n1Bbp/p1Bnqn2/1k1bbPrP/1p1p1N2/5n1K b - - 0 1 illegal: No proof kernel
8/q2r1P1b/ppR4B/1Q1Nbp2/N3N2P/Pp1nbpN1/1kp5/qB4nK b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 c5 b4 cxb4 g5 f5 c5 a6 c6 dxc6 Nh3 c5 Ng1 c4 a3 h5 Bb2 Rh6 Bc1 Rf6 gxf6 b6 Ra2 Qd6 Rb2 Qd8 Rb3 Ra7 Rg3 Ra8 Rg4 hxg4 Qc2 Ra7 Qb3 Rd7 Qd1 Rd3 Qc2 Rh3 Qd1 Rh8 Kf2 Kd7 Kg2 Ke6 h4 Kd5 d4 g5 e3 g3 Nd2 b3 Nb1 c3 Nh3 f3+ Kg1 g4 Qc2 g2 Qe2 Bg7 Ng5 Nc6 Ne4 Nb4 Nbd2 Rh7 Ng3 Nd3 Nde4 Kc4 d5 Qd7 d6 Qa7 d7 Nh6 d8N Nf7 Nb7 Ng5 Nbc5 Be6 Na4 Bg8 Kh2 Nh3 f7 Ng1 Bd2 Be5 Bc1 Rh6 Bd2 Rd6 Bc1 Kd5 Bd2 Nc5 Qb5 Bh7 Bd3 Rd7 Bb1 c2 Bc1 Nh3 Re1 g1B+ Kh1 Bf2 Nd6 Ng1 e4+ Kd4 Bh6 Nd3 Re2 Bf4 e5 B2e3 e6 Be5 e7 B5f4 e8N Be5 Nc5 Kc3 Nc7 Kb2 Rg2 Ne1 Nde4 Nd3 Nf1 g3 Rd2 Ne1 Rd6 Nd3 Rc6 Nf4 Nd5 g2+ Kh2 Nd3+ Nfg3 Bf2 Qa5 Be3 Qa4 Ne2 Qb5 g1Q+ Kh3 Qd1 Kh2 Ng1 Kh1 Qf1 Ba2 Qa1 Bb1 Bc7 Nec3 Bb8 N5e4 Be5 Na4+
1n2b3/1B1nq1Bn/r3RQpk/B2P1q2/3r1nRb/n4rP1/1Kn2P1n/3NB3 b - - 0 1 legal: proof: e4 d5 a4 h5 c4 dxc4 g3 f5 a5 fxe4 a6 h4 Nc3 h3 Nce2 bxa6 Nf4 a5 Ng2 hxg2 Ra3 a4 Ra2 Rh4 Ra1 Rh8 b4 Kf7 d4 Kg6 Kd2 a5 Kc3 c5 h4 e5 d5 a3 b5 e3 h5+ Kh6 b6 a2 b7 a4 Bd2 g6 Kb2 e4 Be2 c3+ Kc2 a3 Kb3 c2 Bf3 c1Q Qf1 Nf6 Bc3 e2 Bb2 e1N Rh4 e3 Qe2 Nd3 Be4 Qe7 Qf1 e2 Rh1 e1R Rh3 Ne5 Qa6 c4+ Ka4 c3 Kb3 c2 Nf3 g1N Qc6 Re3+ Bd3 Nh7 Bc3 Ra6 Bd2 Qb1+ Kc3 c1N Ng5 Ngf3 Be1 Nh2 Rh4 Rf3 Qf6 Bd7 Ne4 Be8 Rf4 Ned7 Rg4 Qb6 Rb1 Qbe6 Rb6 Qf5 Re6 Ne2+ Kc2 Bg7 Nc3 Nf4 Nd1 a1N+ Kb1 a2+ Kb2 Nc2 Be2 Nc6 b8B a1N Bc7 Na3 Bca5 N1c2 Bb5 Ncb8 Bc6 Rf8 Bb7 Bh8 Qd4 Bf6 Qe5 Bh4 Qd4 Ng5 Qf6 Kh7 h6 Rd3 Bc7 Rd4 Bca5 Nd3+ Ka2 Qe4 Qe5 Rf3 Qf6 Nf4 Kb2 Qf5 Qe5 Kg8 h7+ Kf7 h8B Kg8 Qf6 Kh7 Re5 Kh6 Re6 Nh7 Bg7+
1Qq1b1R1/3BNRr1/1p6/1kr1b1Pb/1P1qn2R/2P2n2/1R2b2B/1Kbq2qn b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 d5 gxh4 d6 a4 Nd2 cxd6 Bd3 d5 Nb3 axb3 Bf1 d4 Kd2 d5 f4 Kd7 a4 Kc6 g4 h5 g5 e5 c3 h3 f5 e3+ Kd3 e4+ Ke2 h4 f6 h2 a5 b2 f7 b1Q a6 d3+ Ke1 b6 a7 e2 Kd2 e1B+ Ke3 h3 Bd2 d4+ Kf4 e3 Ke4 e2 Ra4 Rh7 Ra3 Bg7 f8R Nf6+ Kf4 Nbd7 Bc1 d2 Bb2 d3 Ke3 Ne4 Qc2 d1Q Rf2 d2 Kd3 Ne5+ Ke3 Bd7 Qb3 Kb5 Bc1 Nf3 Qc2 Qc8 Kd3 Be5 Ra2 Rg7 Rb2 Be8 Bg2 Rb8 a8R Rbb7 Rf1 Rbc7 Rb8 B1g3 Rf2 e1Q Ne2 Qa1 Nf4 Rc5 Ng6 Bgf4 Ne7 Qg1 Qb3 Qa2 Qg8 Qf7 Qh8 Qf6 Rf1 Qe2+ Kc2 d1B+ Kb1 Qd2 Re1 Be2 Rf1 Qd1 Ra8 Bh5 Qd8 Qfd6 Qc7 Q6d4 Qb8 Qa4 Bd2 Qb3 Be1 Bc1 Bg3 Qbd1 Rf2 Ne1 Rf8 Nf3 Rf7 Qge1 Rf1 h1B Bh2 Qef2 Rf4 Qg1 Rh4 Be8 Bf4 h2 Bh3 Bg2 Rf2 h1N Bh2 Ne1 Rf8 Bgf3 Rg8 Bg4 Ra7 Bgh5 Rc7 Nf3 Bd7+ Kc4 Rc6 Kb5 Rf6+ Rc6 Bg4 Rc7 Rf7 Rc5 Bd7+
1b4Kb/B2PR3/2nq4/3R1bNp/1k1rBnbQ/n3r1n1/1qR2PRP/1n3q2 b - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 g4 axb4 d5 f5 Nd2 fxg4 Ndf3 e5 Nd4 exd4 Kd2 Kd7 a4 Kd6 e4 Kc5 a5 h5 e5 g5 a6 b5 a7 d3 Ke3 b3 Ke4 c3 e6 g3 Ke5 c2 d6 b4 e7 b2 e8R b1N Qe1 d2 Ba6 d1B Be2 b3 Bf4 c1Q Nh3 g4 Qf1 g2 Ra5+ Kb4 Bg3 g1N Bc4 c5 Re6 b2 Kd5 Nc6 Be2 c4 Nf4 c3 Bh4 c2 Nh3 g3 Bf3 g2 Re3 Na3 Ng5 b1N Nh7 Bf5 Qd3 Bg7 Re7 Nh6 Rc5 Qb2 Bg3 c1B Be4 Re8 Ng5 Bdg4 Rc2 Nh3 Rd1 g1Q d7 Qb8 Bc7 Qf1 Bb6 Bf4 Qg3 Bh8 Qh4 Bg3 Be3 Qb6 Rdd2 Nf4+ Kd6 Rac8 a8R Rc7 Rb8 Ra7 Rd5 Ra4 Rf7 Re7 Rg8 Qba6 Ba7 Re5 Bg2 Re3 Be4 Qb6 Re7 Qc5+ Kc7 Qd6+ Kc8 Kb3 Rgg7 Rd4 Rg8 Kb4 Rg6 Na5 Kd8 Nc6+ Ke8 Ng8 Kf7 Nf6 Bg2 Ne4 Kg8 Nd3 Bh3 Bge5 Rgg7 Nf4 Bg2 Ng3 Bf3 Qg6 Bg2 Bb8 Be4 Qd6 Re2 Nh1 Nf3 Bh3 Rg2 Bhg4 Ng5 Ng3 Rc2
3q1n2/3rrk2/1RPb2PK/Nn2Qpr1/5q1N/1q1Rb3/bq1qRPBr/2R5 b - - 0 1 illegal: No possible last move
KR1qb2r/1N1knpRP/1Pn1N1b1/1bBr1PR1/5bb1/Q3n3/4b3/3b1nR1 b - - 0 1 illegal: No proof kernel
bB3q2/1RPKQ2B/n2n1bNk/2rbBp1P/r7/q1r1rP2/rB1r4/N1b5 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 a4 bxa4 e5 hxg4 b5 d6 Ra3 dxe5 Rb3 e4 Rb4 cxb4 Ke2 g5 Ke3 e5 h4 f5 c4 Kf7 d4 Kg7 b6 a5 h5 g3 f3 g2 c5 b3 c6 a3 b7 g4 d5 b2 c7 a4 d6 g3 d7 a2 Rh4 a1B Qc2 a3 Qc4 a2 Qd3 Ba3 Rh1 Kh6 Qb5 Qf8 d8B Na6 b8B Nf6 Ne2 g1R Qa5 g2 Qc3 Bb7 Qa5 Ne8 Qd2 Bd5 Qd4 Nd6 Nbc3 b1B Bd2 Bc1 Kf2+ e3+ Kg3 e4 Nf4 e2 Qc4 e1R Bf6 e3 Be5 e2 Qc5 Bbe4 Nb1 Rd1 Bdc3 e1R Na3 Rd2 Ng6 Re3 Kf4 Bab2 Be2 a1Q Nc2 Qa3 Bc4 Rf1 Ba2 g1R Na1 Rff2 Bcd4 Rc3 Rh2 Ra7 Bc4 Ba8 Bg8 Bed5 Bh7 Re1 Rg2 Ree3 Rg1 Rdc2 Rf1 Rfd2 Rd1 Ne4 Qe7 Nd6 Rh1 Rc5 Rh4 R2c4 Rh2 Bc3 Re2 Ra2 Rb2 Ra4 Rb7 Rg8 Nh4 Rgg2 Ng6 B3b2 Bf6 Rec3+ Ke5 Rd2 Bh8 Be4+ Ke6 Bd5+ Kd7 Re3 Bde5 Bc3 Bg3 Bf6 Be5 Rcc3 Rb5 Rb7 Rb1 Rb5 Rb2 Rbc5 Rb5 Rb3 Bb2 Rbc3 Rb7 Bh4 Bd4 Bf6 Be5
N3q3/p7/q1rRBqb1/1b6/PK2nb1P/rn2Pq2/1BQ1pBk1/2N1n1qB b - - 0 1 illegal: No possible last move
3Rr2q/1K5R/nN1Pp1qb/r2B1b1p/1k3b1P/1nR4P/rq1n1Nb1/2Q2R2 b - - 0 1 illegal: Other
4b1n1/2pRbQ2/P2nn1rr/2b1qqp1/1k2P3/4q1Pr/K1b3R1/RR2B1NB b - - 0 1 illegal: No possible last move
1K1B4/BBP1n2r/N1P3rb/1Q1p1R2/5pqB/q2Nrk1b/5Pqb/n5nq b - - 0 1 illegal: Other
1rQ2R2/2Npnk1N/qr6/2b1pqBb/n3nP2/q2P2P1/br3RNN/4n2K b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 Na3 b3 Bb5 c6 Nb1 cxb5 Rh2 b4 Rh3 Ra6 Rh1 Ra8 Kf1 b5 a4 e5 f4 h5 c4 h3 g3 h4 a5 h2 Kg2 b2 c5 h3+ Kf2 e3+ Kf3 e2 a6 b3 a7 b4 c6 e1N+ Kf2 Ba6 c7 Be2 c8N Qe7 Nb6 Rh6 Nc4 Rb6 Ne3 Kf7 Ra5 Na6 Na3 b1Q Nd5 b2 Nc2 b3 Rb5 Rab8 a8N Nc5 Nf3 Na4 Rc5 Re8 Rc3 Reb8 Nce3 Qf5 Rf1 h1N+ Kg1 b1B Qc2 b2 Rc8 Nf2 Nf6 Ba2 Nh7 b1R Ba3 Ne4 Rf2 R1b2 Rd8 Qb4 Qc8 Qb3 Be7 Qa3 Bh4 Bc5 Nc7 Ne7 Bg5 Bd1 Nd4 Bh5 Nf3 Qe6 Rh8 Qc4 d3 Qa6 Ng2 h2+ Kf1 Kg7 Rf8 h1Q+ Ng1 Qh2 Nf3 Qh3 Kg1 Qf5 Nh2 Kg6 Kh1 Kg7 Rg8+ Kf7 Rf8+
N1KbQ1bB/5B1n/2Rb1rR1/1b1p1prk/2R2b2/2rPqPn1/2Pn4/b2R4 b - - 1 2 legal: proof: g4 a5 b4 axb4 e4 h5 e5 hxg4 e6 c6 Bh3 dxe6 Bf1 e5 Nc3 e4 Nd5 cxd5 Ke2 b5 Ke3 e5 a4 f5 h4 Kf7 a5 Kg6 d3 g3 a6 g2 f3 b3 a7 b2 Rh3 b1B Qe1 b4 Ra2 b3 Rg3+ Qg5+ Ke2 b2 Rg4 e3 Nh3 g1R Qd2 e4 Ra1 Be6 Bg2 Ba2 Nf2 b1N Qd1 Na6 Bh3 Rc8 a8R Bc4 Bg2 Nf6 Bd2 Rh6 Bh3 Nc5 R8a6 Kh5 Rb6 Bd6 Bc3 Bb5 Rc6 Nh7 Qe1 Rf6 Nd1 Nd2 Nb2 Bg8 Rd1 Qh6 Bd4 g5 Na4 Rg3 Rf4 g4 Nb6 Rg1 Bc3 g3 Na8 g2 Bd4 Ncb3 Rg4 Nf1 Rg6 Nbd2 Rc4 Rff8 Bh8 Rf6 Qg3 Rc5 Qe5 Rc7 Qe8 Qg5 Ke1 e2 Kf2 Ng3 Rc6 Qf4 Rc4 Qe5 Ke3 e1B Rc6 Qe7 Kd4 e3 Rc4 Bf4 Rc6 Qe6 Kc5 e2 Kb6 Rc8 Kb7 Qe3 Re6 Rc4 Rc6 Rc3 Kc8 Bf2 Rc4 e1B Rc6 Rh1 Rc4 g1B Rc6 Bh2 Rc4 Rf7 Rgc6 Bd6 Bg4+ Kg6 Rb1 Nh5 Rf4 Bfg3 Re4 N7f6 Rd1 Bge5 Rc7 Rb3 Bg7 Ba1 Rc6 Rc3 Rd4 Rg1 Rdc4 Nh7 Be5 Bf4 Bd4 N7f6 Be5 Ng7 h5+ Kg5 h6 Bh4 h7 Ngh5 h8R Rf8 Rh6 Nh7 Bh3 Rg4 Re6 Ng3 Bf6+ Kh6 Bh8+ Rg6 Bg4 Bd8 Bh5 Rf7 Re7 Rg5 Bg6 Rf8 Rg7 Rf6 Bh5 Nb1 Bf7 Nd2 Rg6+ Kh5 Rb6 Ba3 Ra6 Bad6 Rac6
rn3QB1/1brpbRP1/1nr1bq1P/2p1n2b/3b4/1k1P1B2/b2RNB2/5KB1 b - - 0 1 illegal: No proof kernel
b2R1B1b/b1R1N3/rp3rp1/kBPn1rR1/1QRb1PPK/2q5/7n/b3r2r b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 b4 fxe4 d5 axb4 d6 h4 Nc3 cxd6 Nce2 d5 Ng3 hxg3 Ke2 d4 Kd2 Rh7 Ke1 Rh8 h4 d5 c4 Kd7 f4 Kc7 a4 Kb6 h5 e5 h6 e3 h7 d3 Rh5 g6 Qe2 e4 Qa2 d2+ Ke2 d1R Qa3 g2 Qa2 d4 Re5 b3 Qd2 b2 Re8 b1R Nf3 g1B Qe1 Bg7 Re6+ Nc6 Nh2 Qf6 Re5 Nge7 Qc3 Ra6 Ba3 Nd5 Qb3+ Ka5 Re7 Rf8 h8R Ne5 Rf7 Nf3 Rh6 Bh8 Qa2 Rb5 Qb3 Qg7 Rc7 Rff6 Ra2 Bd7 Ra1 Bc6 Bf8 Bf2 Bg2 Rh1 Nf1 Nh2 Rh5 Rc5 Rc1 d3+ Kd1 d2 Ke2 d1R Rg5 Rb5 Ng3 Rdg1 Bf1 Rc5 Kd1 e2+ Kd2 e1B+ Ke2 e3 Nf5 Rb5 Ne7 Bc3 Qb1 Bd4 Qe4 Kb4 a5 Ba7 Rc2 b6 Rc3 Rc5 Rc1 Ba8 Rc2 Rcc6 c5+ Kb5 Rc1 Rf5 Rc4 Rcf6 Qd4 Be1 Qe4 Bc3 Qd4 Ba1 Ke1 e2 Kf2 Rg3 Qb2+ Rb3 Qd2 Rb4 Kg3 e1B+ Kh3 Bf2 Qc3 Bd4 Kh4 Rb1 Bd3 Bb8 Bf1 Ra7 a6 Re1 Qb3+ Ka5 Bd3 Rd6 Qb1 Qe5 Qb2 Rdf6 Qb3 Rb7 a7 Qe3 Bf1 Qc3 Qb4+ Ka6 Rd7 Rc7 Bd3 Bc6 a8R+ Ra7 Rc7 Bb7 Bc2 Bc6 Ba4 Bb7 Qb2 Ka5 Bc6 Ra6 Bb5 Ba7 Rd8 Ba8 Qb4+
Q7/nrnb4/PpB2n1n/kbNpK1R1/1bR5/nR1P3R/rrNrP3/6q1 b - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 h5 e5 h6 exf4 Rh3 c4 Bb2 c3 Na3 cxb2 Rh1 gxh6 Nb1 h5 Rh2 h4 Rh3 Qa5 Rh1 Qd8 Kf2 f5 Kf3 h5 c4 b6 g4 b3 a4 h3 d3 h4 g5 h2 g6 h3 c5 Nf6 g7 Nc6 g8R Rh7 a5 Na7 Nd2 b1N c6 b2 c7 Na3 Qb3 b1R Qd1 Rb2 Rg5 Bb4 Kf2 f3 Ke3 f2 Kd4 f4 Rg3 f3 Bg2 f1R Rc1 f2 Qa4 Rd1 Ne4 f1N Ra1 Rdd2 Ng5 Ne3 Ne6 Ned5 Qb3 d6 Nf3 Kd7 Ra2 Kc6 Rg4 Kb5 Rg6 Bd7 c8R Nc7 Rg3 Qg8 Rg1 h1B Nc5 h2 Ne1 Re7 Bb7 Bhc6 Rh3 h1N Rg5 d5 Nc2 Nf2 Qc3 Rh7 Ke5 Qg6 Ra1 Qg8 Rb1 N2g4+ Kf4 Nh6 Ke5 Rg7 Qb3 Rh7 Qa2 Qg7 Rf5 Qg2 Rg5 Qg1 Qa1 Ra2 Rb3 Rb2 Ne4 Ka4 Qa2 Bb5 Bc6 Rb8 Qa1 Rb7 a6 Ka5 Nc5 Rg7 Rgh5 Rg4 Rg5 Ra2 Qd4 Rf4 Qe4 Rf1 Qg6 Rb1 Qg8 Na8 Rc7 Rbb2 Qb8 Ne4 Rc8 Nc7 Qa8 Nf6 Rf8 Nh7 Rf4 Nf6 Rc4
Q1b2brn/N5R1/2P1pPB1/1b4qB/p3q1br/2b1Bn2/1r1bP2B/KR3k2 b - - 0 1 illegal: No possible last move
r2qn1K1/4N1Np/1r1kP3/BPnBb1q1/1R6/4np1b/rn3QNP/1n2nN2 b - - 0 1 legal: proof: d4 b5 b4 c5 a4 bxa4 f4 cxd4 f5 e5 f6 e4 Ra3 gxf6 Nh3 f5 Rf3 exf3 Ng1 f4 Kf2 Ke7 c4 d5 g4 a5 e4 f5 b5 a3 g5 d3 g6 d4 c5 a2 e5 a1N g7 d2 c6 d3 c7 a4 Nh3 a3 Qe1 d1N+ Kg1 a2 Qg3 d2 Qg5+ Nf6 Qg3 f2+ Kg2 Ne3+ Kf3 d1N Bc4 f1N Qf2 Na6 Qc2 Ne8 Bd5 Nc5 Bd2 Nb2 g8N+ Kd7 Ne7 Bg7 Ba5 Nd2+ Kf2 f3 Kg3 f4+ Kh4 f2 Kg5 f3 Nf4 f1Q Ng2 Bf6+ Kh6 Qc1 Nf5 Ra6 Rf1 Rb6 Ng7 Ke7 Rh1 Bh3 e6 Be5 Re1 Kd6 c8N+ Kc7 Ne7 Kd6 Qc4 Rg8 Qh4 Nac2 Qf2 a1R Rh1 Ra2 Rf1 Nde4 Nd2 Nc3 Rd1 Rh8 Nf1 Nb1 Rd4 Ne1 Re4 Rf8 Rb4 Rf7 Nc6 Ra7 Ne7 Ra8 Nh5 Nf6 Kg7 Ne8+ Kg8 Qd2 Nc6 Qg5+ Ng7 Qd4 Ne7 Qdh4 Ng6 Qd8 Ne7 Qh5 Qg3 Qg5 Qf2
3qQ1bK/q1R2B2/RPp2R2/1nqp1bb1/1bPn4/2N2k2/1N3r1P/b1r1R1q1 b - - 0 1 legal: proof: d4 b5 g4 e5 a4 bxa4 g5 exd4 g6 h5 Nh3 h4 Bf4 fxg6 Be5 g5 Bg3 hxg3 Ng1 g4 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 b4 d3 e4 a3 f3 a4 c3 d2 b5 c6 b6 g2 Bd3 g3 Bf1 a2 Bb5 a3 Qe2 d1B Qe1 Ne7 f4+ Kg4 f5 g5 Kf6 Bb3 e5 Bg8 e6 d5 c4 Na6 Qe5 Nc7 Ne2 g1B Qe3 g2 Qc1 Kf3 Ba6 g4 Nec3 g3 Nd1 Nb5 Nb2 Be3 Nc3 g1Q Qe1 g2 Bb7 Bd7 Bc8 Bd2 Qe5 Qc5 Rhe1 g1Q Qb8 Bfh6 Qe5 Bhg5+ Kg7 Rh4 f6 Rf4 f7 Nf5+ Kh8 Nfd4 e7 Bf5 f8R Ra7 e8R Ra6 Rac1 a1Q Be6 a2 Rf6 Ra3 Bf7 Ra7 Ncd1 Bb4 Re7 Ra3 Rb1 Rc3 Rc7 Rc1 Qe8 Rg4 Nc3 Rg2 Nbd1 Rf2 Rb3 Qb2 Ra3 a1B Raa7 Qa3 Nb2 Qa6 Ra8 Qb7 Ra5 Qa7 Ra6
2n4R/q1q1nnR1/rR3K2/brN2b1N/2Pkb2Q/3Rpq1P/4Pp2/3n1B1q b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h6 Bg5 g6 Bf6 gxf5 g5 f4 g6 Ra3 Bh4 Ra8 Bg5 hxg5 Kf2 f5 Kf3 b5 c4 d5 a4 Kd7 g7 Ke6 a5 Ke5 h3 g4+ Kg2 b3 a6 b4 a7 f3+ Kg3 f2 Nc3 f4+ Kh2 g3+ Kg2 d3 Kf3 b2 Rh2 b1N Qb3 d2 Na4 d1Q Qd3 d4 Nc3 b3 Qh7 d3 Ra2 g2 Na4 b2 Nc3 d2 Ra6 Nh6 g8R Qc7 Na2 Na3 Qc2 b1B Ra5+ Kd4 Rg6 e5 Rc6 Bb4 Rac5 Ba5 Rf6 Nf7 Qc1 Bcf5 Nb4 Rh5 Rb6 Nb5 Nd5 Nbd6 Nf6 Nc8 Qc2 Be4+ Kg4 Nc6 Rh1 Rf5 Nh5 N6e7 Rcb5 Qc1 Rb3 d1N Qd2+ Bbd3 Qe1 Rg5+ Kh4 Bf5 Rc3 e4 Rh2 e3 Rh1 Qa3 Nf3+ Kc5 Rg1 Bde4 Ne5 f3 Rcb3 Kd4 Nd3 Qa4 Nc5 Qad7 Rh1 g1Q Rc3 Qgh2 Rg1 Qh1 Ra3 Rb8 a8R Rg6 Rab3 Qa7 Rg4 Qdc7 Ra3 Rh6 Rg7 Rf6 Rc6 Rb5 Rb6 Ncd6 Rh8 Ndc8 Rb7 Ra6 Rb6 Nfd6 Kg5 Nf7+ Kf6 Qab7 Rc3 Qa7 Bg2 f1Q Qh4 f2 Ra3 Qe1 Bf1 Qf3 Bg2 Qg1 Bf1 Qgh1 Rd3+
2R3q1/rkn1R1P1/1b1N4/nb1RK1n1/5Bb1/Rp1p4/QPBr2nP/2r2qb1 b - - 0 1 illegal: No proof kernel
1qqn1Nr1/3Qq3/3b2B1/2rqn2p/NBPnb2n/p2P3P/kbB2K1B/6R1 b - - 0 1 legal: proof: e4 b5 b4 c5 f4 g5 a4 bxa4 b5 gxf4 Ra3 d5 Rb3 dxe4 Rb4 cxb4 c4 Kd7 g4 Kd6 b6 Kc5 g5 h5 b7 f5 g6 e5 d3 a5 h3 e3 g7 e4 Rh2 a3 Ra2 b3 Rg2 Kb4 Rg3 a4 Rg5 b2 Qd2+ Kb3 Be2 f3 Bf1 f4 Rg2 a2 Qa5 a1B Rg6 a3 Qc3+ Ka2 Be2 f2+ Kf1 Nf6 g8B Bf5 Bh7 Qe7 Qc2 Ng4 Rf6 Ne5 Rf7 Ra5 Bd1 e2+ Kg2 e1N+ Kf1 e3 Bd2 Rg8 Qc1 Rc5 Ba5 N1f3 Bg6 e2+ Kg2 f1Q+ Kh1 e1N Qd2 Be4 Qe3 Ng2 Bc2 Ngh4 Rg7 Nbc6 b8B Nd8 Bb4 Nd4+ Kh2 f3 Kg3 f2 Ne2 Qd1 Nf4 f1Q Ne6 Qh1 Kf2 Qg4 Qf3 Qf5 Bc7 Qg4 Qf7 Qf5+ Nf4 Qc8 Ne6 Qd6 Qd7 Qe7 Nd2 b1Q Nb3 Bb2 Bd6 Rc6 Nbc5 Rc7 Na4 Rc5 Bd2 Qe8 Bb8 Bd6 Nf8 Qe7 Bc3 Bf5 Bb4 Qd5 Bf7 Be4 Rg1 Bc3 Bc7 Qb3 Bg6 Bb2 Bc3 Qb5 Bb4 Qbb8 Rd1 Nec6 Re1 Bh2 Rg1 Bf4 Be5 Bh2 Bg7 Bd6 Bh6 Ne5 Bf4 Nhf5 Bg3 Nh4 Bh2
Nb3rNq/pnnnRN2/2bnq2Q/4q2R/p1k1B2P/K3b3/P6P/1N4br b - - 0 1 illegal: Other
Bb2r3/1p2b1pK/bn1p3n/4n1bR/2r2PQ1/P2P1NB1/RbBq4/3kB1r1 b - - 0 1 illegal: Other
2rn2b1/2P2N1r/P2rpn1R/pQ3r2/2qRprBK/R1k1PbB1/R4b2/2q5 b - - 0 1 illegal: No proof kernel
2Kb2B1/R4R2/1rkp1QR1/B1qp3p/r1nP1br1/1Pbb2bP/4qN2/R2n4 b - - 1 2 legal: proof: f4 e5 a4 exf4 g3 fxg3 a5 c6 a6 bxa6 Nc3 a5 Nd5 cxd5 Bh3 a4 Bg2 Bd6 Bf1 Bf8 e4 h5 Ke2 a5 Kf3 g5 c4 f5 d3 g4+ Kf4 a3 Ke5 g2 b3 a2 c5 a4 h3 d6+ Kd4 Kd7 e5 g3 e6+ Kc6 e7 a3 e8R f4 Be3 f3 Rb1 a1B+ Rb2 a2 Bg5 f2 Qf3 Bf5 Qf4 Qa5 Ne2 g1R Nc3 g2 Ne4 Bh6 Bd8 Nd7 Re6 Ngf6 Ke3 Nb6 d4 Nc4+ Kf3 Ng4 Bd3 f1Q+ Nf2 Nge3 Rg6 Nd1 Bb1 Qb5 Ba5 Bd3 Qf6 Bf4 Re2 Qb6 Re7 Bc3 Rf7 a1B Bc2 Rhb8 Bb1 Kb5 c6 Qc5 c7 Rb6 c8R Bb4 Rcc7 Bac3 Rb7 Kc6 Bc2 Bg5 Ra7 Qe2+ Kg3 Bh4+ Kf4 Be1 Ne4 Beg3+ Kf5 Bc3 Ke6 Bg5 Qf5 Bd8 Qf6 Rf1 Bb1 g1B Bc2 Be3 Nf2 Rg1 Bb1 Kb5 Kd7 Bef4 Bc2 Bh4 Bb1 Rg4 Rf1 Bhg3 Bc2 Nde3 Ra1 Nd1 Rb7 Ra6 Ra7 Qb4 Kc8 Kc6 Bb1 Qc5 Bb4 Ra4 Ba5 Ncb2 Bc2 Bc4 Bf5 Bd3 Be6 Nc4 Rfe7 Ncb2 Bg8 Nc4 Rf7
q2r3n/Q1pB4/1nP1q1N1/3q1r1R/P3N1q1/1N3nbb/1KPpp3/3RNqk1 b - - 0 1 illegal: Other
1k1r1R2/5rQq/6b1/p1bnpN1b/2B1qn2/1KpPB1BP/2P2NB1/2r1bb2 b - - 0 1 legal: proof: b4 d5 e4 dxe4 a4 h5 f4 b5 g4 bxa4 g5 g6 f5 gxf5 Ra3 f4 Rg3 Nc6 Rg2 Nb8 Rg4 hxg4 h3 Kd7 b5 a5 d3 e5 Kd2 c5 Kc3 Kc7 g6 f5 g7 f3 Bh6 a3 Be3 f4 Bc1 f2 Qe2 f3 Rh2 a2 Rg2 a1R Bg5 e3 Kb3 c4+ Kc3 g3 Kb2 c3+ Kb3 Na6 b6+ Kb8 b7 Nb4 Bf6 Nd5 Qd2 e2 Qg5 e1B Qh4 Qc7 Qg5 Bc5 Na3 Nge7 g8B Bf5 Rh2 g2 Nb5 Nf4 Ne2 g1Q Bg2 f1B Ned4 f2 Qg7 Be2 Bh4 f1B Bg3 Qe3 Bc4 Qe4 Nd6 Bg6 N4f5 Ra7 Rh1 Beh5 Rg1 Qe3 Ne4 Ned5 Nf2 Rd8 Rh1 Rc1 Rg1 Qf7 Rh1 Kc7 b8B+ Kc8 Bc7 Qe4 Bb6 Kb8 Rg1 Bb4 Be3 Bc5 Qh8 Qh7 Qg7 Bfe2 Rf1 Rf7 Ng4 Qg8 Rf3 Qh7 Nf2 Bf1 Nd6 Ne2 Rf6 Nef4 Nf5 Re7 Rf8 Rd7 Bd4 Rf7 Be3
1BR5/rp1P4/BP1PN1K1/3rN1bn/1pb1Nqp1/4r3/2r1qQ1b/nr3Nk1 b - - 0 1 illegal: Other
1R3q2/b1pNNp2/Rb5r/1PR2P2/1q1bpQP1/1b1rk1n1/2b4n/R1K1n2B b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 d5 c5 dxe4 Ba3 b6 b5 bxc5 Bb4 axb4 Qf3 c4 Qg4 Bh6 Qd1 Bf8 d4 Kd7 Kd2 Kd6 a4 Kd5 f4 e5 g3 h5 a5 b3 f5 h3 a6 e3+ Kc1 Ke4 d5 e2 a7 e1B d6 h4 d7 b2+ Kc2 c3 Qd5+ Ke3 Ra6 e4 Ra2 h2 Ra4 h3 Rc4 Na6 Qc6 Bf2 Qb7 Nf6 Ra4 Rh6 Ra1 Bg7 Kd1 Nc5 Na3 b1B Qb8 c2+ Kc1 Ng4 Nf3 Bd4 Nh4 Qf8 d8R Be6 Qb6 Bb3 Rd5 Rd8 Rg1 h1Q a8R h2 Ra6 Qg2 Qa5 h1N Ng6 Nh2 Ne7 Qf3 g4 Ng3 Bg2 Qe2 Rb6 Qc4 Rb8 Qb4 Bh1 Bc3 Qa6 Kf4 Rg2 Be5 Rd3 Rd5 Rc3 Nd3+ Kd2 Ne1+ Kc1 Ba7 Nc4 Rd3 Nb6 Bd4 Nd7 Kf3 Rd2+ Ke3 Qd6 Bab6 Kb2 Ba7 Ra6 Bdb6 Rd1 Bd4 Qe5 Bdb6 Rc5 c1B+ Ka1 Bd2 Kb2 B1c2 Rda1 Bc3+ Kc1 Bd4 Qf4+
RK6/1p2rBq1/3B2N1/1Ppb2rr/B1q5/PQ1r2bk/pn1PR1r1/2qBn3 b - - 0 1 illegal: No proof kernel
b3KRn1/3pPRb1/6p1/1qqN2b1/q1r1N3/1p1nBRr1/2Pq2P1/q1QR3k b - - 0 1 illegal: No proof kernel
4N2b/1nKbBQq1/1Np2RP1/b1N4q/1rk3p1/rpPN2P1/q1rn4/2bB4 b - - 0 2 illegal: Other
5Rb1/pp1Qr1NP/P2n3q/4R1B1/b1Pr2qn/3nRr2/1Rpb2k1/K5bB b - - 0 1 illegal: No possible last move
N2rN1Q1/b1Kn4/1nR2q2/2PP1N1p/qpR1Nrrq/n6P/3B2bp/3r2k1 b - - 0 1 illegal: No proof kernel
1bR3nN/3r4/P1n1qnN1/k1p4B/p3P2n/Q1RrN3/Pb1qpKbN/3r4 b - - 0 1 illegal: Other
1b3n1r/2R2Q2/Rr1q2pR/4B2R/n2b1Pqp/p3qBPN/Pb2k2n/1K1b4 b - - 0 2 legal: proof: e4 b5 c4 bxc4 h4 g5 Nc3 gxh4 Nce2 d5 Nf4 dxe4 Ng6 fxg6 d4 Kf7 Kd2 Kf6 Kc2 Kf5 f4 a5 b4 h5 b5 e5 g3 c5 b6 c3 d5 c4 d6 a4 d7 h3 b7 h4 Rb1 e3 Rb5 Ke4 Rb6 h2 Qg4 a3 Re6 e2 Qh5 e1Q Nf3 Bd6 Re8 Qe3 Bd2 Nf6 Be2 Nd5 Qg5 Nb6 Qf6 Ra6 Rb1 h1Q Rb4 Qh3 Rb5 Qg4 Nd4 Na4 Bc1 Rb6 Kb1 c2+ Ka1 c3 Bd2 c1B Nb3 c2 Bd1 Kd3 Bc3 e4 Nd4 Bd2 Rg5 c1B Rh5 Bb2+ Kb1 Be1 Bf3 Bf2 Ree5 Qf8 d8R Nd7 Rc5 Bb8 Qf5 Qd6 Ne2 Nf8 Be5 Be6 Rc1 Bb3 Qf7 Bd1 Ng1 Kd2 Nh3 Bg1 Bh1 Ke2 Rc6 Qb3 Rc5 Bgd4 Rc7 e3 Rh6 Kf1 Rdd7 e2 Bf3 e1N Rc6 Qe3 Rdc7 Rb4 Ra6 Rb6 Bh1 Nf3 Rh5 Nh2 Bf3 Ba7 b8R Ke1 Re8 Bb8 Rh6 Kd2 Re6 Ke1 Rf6 Kd2 Rf5 Kd3 Rfh5 Kd2 Bd5 Ke2 Bf3+
3rkB1q/Kpn5/b1Pb4/4Qnb1/n3pr1P/p1q2RN1/1P2R1R1/R2q1qN1 b - - 0 1 illegal: No proof kernel
1rQ5/1p1nrbr1/nr2BNpb/K2p4/P2P3N/3BBn2/r1B2rP1/kq2R3 b - - 1 2 legal: proof: f4 c5 a4 a5 h4 e5 b4 axb4 h5 exf4 h6 c4 Ra3 Qh4+ Rg3 Qxh6 Ra3 Qh2 Rb3 cxb3 e4 Ke7 c4 Kd6 d4 h5 Kd2 f5 Qe2 g6 Qe1 f3 Nc3 b2 Qg3+ f4 Qh4 b1R Qf2 b3 Nge2 b2 Ng1 h4 Nd5 h3 Kc3 Bh6 Kb4 Na6+ Kb5 Rb8 Nb4 Nf6 Qg3 f2 Qg4 f3 Be3 Rg8 Be2 f1N Bd2 f2 Nc6 Re1 Ne7 b1R+ Ka5 Rb6 Qg5 Rg7 Be3 Nd2 Qf5 f1R Nd5 Nf3 Bd1 Rf2 Bc2 Qf4 Qg4 h2 c5+ Kc6 e5 Qf5 e6 d6 e7 Nd7 Bb3 Qb1 e8B Ree2 Nf6 Ra2 Bc2 Re7 Nh5 Kd5 c6 Kc4 c7 Kc3 Nf6 Kb2 Bf7 d5 Be6 Ka1 Bef5 Nde5 Bfd3 Be6 c8B Bf7 Be6 Nd7 Qh3 Bg5 Qh8 Bh6 Qc8 Be8 Nh3 Bf7 Re1 h1R Ng1 Bg7 Ne2 Rh7 Ng3 Bh6 Nf5 Rg7 Nh4
b2r3Q/1p3nn1/p1BP1nn1/N3b3/1P1R1B1R/1rb4q/1kpnPB1n/4K1B1 b - - 0 1 illegal: Other
2b3k1/R1Rr2bb/p2n2pN/3r1PP1/2rR2Pq/pb1bn1r1/2QR3B/5B1K b - - 0 1 illegal: Other
3qr2b/Q2b3B/rRPK1b2/3nB1pp/3n2PP/N3rbkr/1B1b1p2/1B1R4 b - - 1 2 illegal: No possible last move
rRQ3r1/1bK3n1/PNpr1P1b/2P1N1p1/3NBr1k/6rN/1R1qrp2/5nq1 b - - 0 1 illegal: No proof kernel
Rr1b3b/R1N2P2/1q2np1p/n1PBp1r1/4Pk2/1R1n2rQ/1R2b3/1b2rN1K b - - 0 1 illegal: No proof kernel
nN6/1bb3KQ/q1r1r1p1/k2rR1RP/2rB1b2/1p3PP1/2b1nR1p/3R1Bn1 b - - 0 1 illegal: No proof kernel
1Rr1b3/4k2p/3Pn3/Qr2r1b1/p3Rbp1/1R2qB1q/2P1r1PN/1K1b1RBn b - - 0 1 illegal: No possible last move, all moves rejected
R1r2Q2/Kpr1b3/1pR4P/npr3kP/N1NN1p2/b2b1r2/r4P2/Bnq2N2 b - - 0 1 illegal: Other
nN4b1/Rr1pR1QN/3nqpp1/3P2PN/Pb4nn/3KB3/br3k1p/1n3N2 b - - 1 2 legal: proof: h4 a5 b4 axb4 f4 c5 e3 e5 h5 exf4 h6 Qh4+ Ke2 Qxh6 Ke1 Qh2 Bb5 c4 Ba4 Ra7 Bb3 cxb3 Bb2 Ra6 Bc1 Ra8 Ke2 Ke7 d4 Ke6 c4 Kf5 a4 Kg4 e4 Kg3 e5 b5 e6 h5 e7 b2 e8N h4 c5 g6 c6 f3+ Ke3 b3 c7 h3 Qe2 b4 Qc4 f6 Bd2 f2 Qd3 f1N+ Ke2+ Ne3 Ra2 Na6 Qc3 Rb8 Qc5 Bb7 c8N Nc4 Na7 Nd6 Qc4 Nh6 Qg8 Bd5 Nf3 Rb7 Qh7 Ng4 Nc3 b1B Rc1 b2 Be3 b3 Nd2 Bg8 d5 Nc7 Qg7 Na8 Nc6 Rh4 Ra1 Ba2 Kd3 b1N Nb8 b2 Re1 Qg1 Re2 Qe1 Nce4+ Kh2 Ng5 Kg3 Nh7 h2 Nc7 Be7 Ne6 Rh3 Nf4 Rh4 Nc4 Nd2 Rc1 Nf3 Nd2 b1N Rc7 Rb2 Rb7 Rh3 Ra7 Nh4 Bd4 Bf8 Re7 Qe6 Be3 Nb7 Re8 Bb4 Re7 Nd6 Bc5 Ne3 Nf1+ Kf2 g4 Rg3 g5 Rg1 Kd4 Ng4 Nh5 Rg3 Bb6 Rgb3 Bc5 Rc3 Bb6 Rc7 Bc5 Rb7 Kd3+ Kf3 Be3 Kg2 Bd2 Kf2 Be3+
2BKN3/R2Rpp2/1pp1N1r1/r1r4r/P2q3N/1Pb5/2bQPr1n/1nN3kb b - - 1 2 legal: proof: g4 d5 f4 a5 c4 dxc4 g5 h5 b3 a4 g6 a3 Bb2 axb2 f5 Ra7 f6 gxf6 g7 f5 Nf3 f4 Ng1 Nh6 g8R Ra8 Rg5 Ng8 Rg4 hxg4 Kf2 Kd7 a4 Kd6 h4 Kd5 d4 Ke4 h5 b6 d5 c3 h6 c2 d6 c1R d7 f3 Kg3 Ke3 Kh4 Kf2 Kg5 g3 h7 g2 Na3 b1B Nb5 Nc6 Nd6 Nb4 Rh5 Nf6 Ra2 c6 Rd2 Be4 Rd4 Ra6 Qd2 Ng4 Rd3 Bg7 Nh3+ Kg3 Rd4 g1R Nf2 Nh2 Bh3 Nd5 Nd3 f2 Bg4 Rc2 Nc1 Kg2 Be6 Be5 Kh6 f1R Rd3 Rf6+ Kg7 Nc3 Rf5 Bd4 Ra5 Nb1 Bf5 Rc5 Bg4 Rf8 h8N Bc3 Ng6 Rh8 Nh4+ Kf2 Rd4 Rhh5 Rd5 Bh1 Rd3 Qc7 d8N Bf5 Kf8 Qd7 Rd5 Bd3 Bh3 Qg4 Ke8 Qd4 Bc8 Rgg6 Ne6 Bc2 Kd8 Kg1 Ne8 Ra7 Rd7 Ra8 Ra7 Rf2 Rb7 Raa5 Ra7
4N1K1/1kb2pPr/2p1rP1N/P1n1rpn1/7B/1BQ1b1q1/2B1np1R/B4b1n b - - 0 1 illegal: No proof kernel
1nB2R1K/1q2p2N/5r1p/4B1p1/P1qn1Qnn/k5Pb/pb2P1B1/1R1rB1n1 b - - 1 2 illegal: No proof kernel
2N5/PqQ2BBn/r1Pp3k/b1qp4/2B4N/2p1q2r/KbPp2n1/3b1RBb b - - 0 1 illegal: Other
2kn4/BR3n1N/BB1r1pp1/3Pq2Q/Kpb2P1B/bn2Nbb1/q1p1rP2/8 b - - 0 1 illegal: Other
1RR1B3/1pp5/Bbkp1RK1/1b1r1Q1n/1PqP1P1R/q1b4b/2N1q1p1/2r2n2 b - - 0 2 illegal: No proof kernel
3Kb3/b2bp2r/3NB1n1/pN1p4/P2NP1Nq/3P1QR1/p1n1q2n/k2n1rB1 b - - 1 3 legal: proof: g4 c5 b4 cxb4 a4 f5 h3 fxg4 Ra2 gxh3 Ra3 bxa3 f4 Kf7 Kf2 Ke6 Kg3 Kd5 Kh4 Kc4 Kg5 a5 f5 b5 c3 h5 f6 a2 f7 b4 Rh2 b3 Nf3 h4 Bb2 Rh7 Kf5 g5 Bc1 g4 Qe1 g3 Ke5 g2 Bb2 g1N e3+ Ne2 Kf5 Bg7 f8N Nc6 Ng5 Ne5 Nfe6 Ng6 Ba3 b2 Nf7 Kb3 c4 Nd4+ Kg5 Nf6 c5 Ng4 c6 Nc2 c7 Bd4 Re2 h2 Qg3 h1B Nc3 b1N Bh3 Nh2 Kf5 Ba7 Ne5 Bc6 Bc5 Kb2 e4 Ka1 Nb5 Nc3 Bg1 Nd1 Re3 d5 d3 Qg8 Ng4 B8d7 Qf3 Rf8+ Nf6 Be8 c8N Bcd7 Bg4 h3 Ncd6 Bc6 Ned4 Bcd7+ Kg5 Qg7 Be6 Qh6+ Kf5 Qh4 Re2 Qe1 Rg2 Qe2 Rg5 Nf1 Rg3 h2 Qf4 h1Q Qf3 Nh8 Ke5 Qh4 Ng4 Nh2 Qg2 Rf1 Qf3 Nf7+ Kf5 Rh8 Kg6 Ne5+ Kg7 Rh5 Kf8 Rh7 Bg8 Bg6 Bf7 Be6 Ke8 Bd7+ Kd8 Bh5 Bg8 Bhe8 Bf7 Ng6 Be6
3r4/Pb2pp1r/2Np1P1n/4bk2/1NpRq1n1/1N2N3/K1nBpb1P/1R1qQ3 b - - 0 1 illegal: No proof kernel
2Nq2q1/R1p3RB/2P4P/p2Rp1p1/2KQb2B/bnRrpn1r/5P1k/2n4r b - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 g5 bxa4 g6 f5 Nc3 f4 Nce2 hxg6 Nh3 g5 Nhg1 g4 Ng3 fxg3 Ke2 Kd7 d4 Ke6 c4 Kf5 b4 a5 h4 e5 d5 g2 b5 g3 b6 Kg4 c5 a3 h5 a2 d6 Ne7 b7 Nec6 d7 Nb4 c6 Nd3 Bg5 e3 Bh4 Na6 b8R Ba3 Nh3 g1Q Ng5 g2 Rb7 Nac5 Ra7 Nb3 Rc1 a1R Nf7 Ba6 Rc3 Ndc1+ Ke1+ Be2 Nd6 Bf3 Qd4+ Be4 Nc8 Rb8 Rh3 Rb5 Rf3 Rd5 Rf7 Kh3 Re7 g6 Rg7 Kh2 Kd1 g5 Ke1 Qg8 d8R Qh1 Rd6 g1N Bd3 Qf3 Rdd7 Qf6 Kd1 Qfd8 Kc2 Bg2 Bh7 Nf3 Qb6 Rd3 Qd4 Nfd2 Rd6 Be4 Rd5 Nf3 Rc4 Rd1+ Kc3 Rh1 Rcc5 Ra2 Kc4 Rd2 Bf5 Rd3 Bg6 Rh6 Bh7 Rf6 h6 Rf4 Rb7 Rg4 Ra7 Rg3 Kb5 Rh3 Rc3 Bf5 Kc4 Bg6 Rf7 Be4 Rg7
2r4b/1R6/4N1BK/k2np1rp/qn5P/p1PpP1qN/Q1N1pNbr/1R1b4 b - - 1 2 legal: proof: d4 f5 a4 b5 d5 bxa4 d6 f4 e3 f3 Ba6 cxd6 Bc4 d5 Bf1 d4 Qe2 fxe2 f4 g5 f5 Na6 Bd2 Nf6 Bb4 Ng8 Bd6 Nb8 Bf4 gxf4 Kd2 Bg7 Kc1 Bh6 Kd2 Bf8 g4 d5 b4 Kd7 f6 Kc7 f7 Kb6 h3 a5 c3 e5 g5 f3 b5 a3 g6 f2 g7 d3 Bg2 f1R Rh2 a2 Be4 a4 Bg6 d4 Na3 Ne7 g8N Rf5 Nh6 Bg7 f8N Na6 Ng4 Nb4 Nf2 Ka5 b6 Bb7 Nc2 Ned5 Rb1 a1Q Ne6 Qg8 Rg2 Bc6 b7 Rc8 b8Q Rg5 Qb7 a3 Qf7 Qb2 Rh2 Qb3 Rh1 Qa4 h4 h5 Rb2 Rg2 Ngh3 Rh2 Rc1 Rh7 Rcb1 Bh8 Rb3 Rg7 R3b2 Na2 Rb7 Nab4 Be4 Rg5 Bg6 Nf4 Nc7 Bf3 Qa2 Bg2 Ne6 Nfd5 Bh7 Rg7 Nd1 Ka6 Ke1 d2+ Kf2 Bf1+ Kf3 d3 Ndf2 d1B Ke4 Ka5 Kf5 Rg1 Bg6 Rg4 Bf7 Bg2 Be8 Rgc4 Bf7 Qg3 Bg6 Rd4 Ng4 Rf4+ Kg5 Rf5+ Kh6 Rg5 Ngf2
RB1K4/bp6/P1p2Bp1/rq2N3/1nnpb3/nP2Bqq1/r1PQ1Npk/B7 b - - 1 2 illegal: No proof kernel
2kB2K1/2bB1p1N/1p1q4/3p1Rbb/n3R1pP/pBBnr1P1/n1P4Q/5b1r b - - 0 1 illegal: No proof kernel
1b3NQ1/5bN1/8/Kp1p2nq/1p1pp3/2pPrb1B/1N1PrRP1/1nR1r1Nk b - - 0 1 illegal: Other
1bB4R/3rn2b/b2bN1nb/q1rq3P/P3Nk2/N7/2RPBK1n/7N b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 g4 hxg4 a4 d5 b4 axb4 cxd5 c6 dxc6 b3 Ba3 b2 Bd6 Qxd6 Qf3 Qd8 Qf4 Nd7 Qb8 Nxb8 f4 Kf7 h4 Kf6 h5 g5 c7 e5 Rh4 b5 Rh2 g3 Nh3 g2 Ra3 g1N Rb3 g4 Nc3 b1B Nf2 e4 Rb2 g3 Rg2 b4 Nh1 b3 Ba6 e3 Na2 e2 Rf2 g2 Rf3 Ra7 Bd3 Bh6 Rg3 Nd7 Rh3 Nf8 Nc1 Ba6 c8B Nf3+ Kf2 Qa5 Rg3 Nh2 Na2 Ng6 Nb4 Rd7 Nc2 N8e7 Na3 Rh7 Rc2 b2 Bb5 Rc7 Rd3 Rc5 Rd8 Rf7 Rh8 e1B+ Ke3 Bg3 Be2 Nf1+ Kf3 g1B Kg2 Rg7 Kf3 B1h2 Kg2 Kf7 f6 Rh7 f5 Bb8 Kf2 Bhd6 Kg1 Rg7 Kf2 Nh2 Rh7 Ke8 f7+ Kd8 f8N Kc7 f6 Kc6 f7 Kd5 Ke1 Ke4 Nd7 Kf4 f8N Rf7 Rh8 Rh7 Rc1 Bbd3 Kf2 b1Q Rc2 Qa2 Nf6 Qd5 Nb5 Nc6 Ne4 Rd7 Na3 Nce7 Ng5 Bf5 Ne4 Ne5 Nf6 Bh7 Ne4 N5g6 Ne6+
N7/1qp5/3N3P/r1B2NPk/1bK1N2q/1r2rnnB/2R4P/n1n1q1Rb b - - 0 1 legal: proof: a4 a5 c4 f5 g4 d5 e4 fxe4 b3 h5 gxh5 dxc4 f4 g6 Qf3 g5 b4 axb4 Qa3 bxa3 fxg5 Ra7 Nh3 Ra5 Ng1 Ra8 Ke2 Kf7 d4 b5 a5 e5 d5 a2 a6 b4 a7 c3 h6 Kg6 d6 c2 d7 b3 Nf3 e3 Kd3 e4+ Kd4 b2 Ne5+ Kh5 Kc3 e2 Nc6 e1Q+ Kd4 e3 Bh3 e2 Nc3 b1R Kc4 Bb4 Ne5 Nc6 Be6 Bb7 Kd3 Qc8 d8N Nge7 Bf4 c1N+ Kc4 Rb3 Ng4 Re8 Ne3 Nf5 Bd6 Qh4+ Ne4 e1Q Bc5 Ncd4 Nf7 Ng3 Bh3 Nf3 Nf5 Bc6 Rg1 Qb7 Rb1 a1N Rb2 Re5 N7d6 Rae8 Bd4 Ra5 a8N Re7 Nd2 Ree3 Rc2 Be4 Ba7 Nd4 Bb6 Bh1 Bc5 Nf3+ N2e4
1b5R/bPB1KN2/p5p1/Rqrr1q1n/8/2q1NPBP/1qbB2B1/1kn2r2 b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 Ra5 dxc4 Ra4 Qd6 Ra1 Qd8 g4 h5 b4 hxg4 e4 fxe4 Qb3 cxb3 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Kd4 b6 c5 b5 e5+ Kg6 c4 Kf7 e3 b7 e4 h3 g6 b6 e2 d3 e1Q f3 c3 Ba3 c2 Nc3 c1Q Bb2 g3 Ba3 g2 Rb1 a6 Na2 b2 Bd6 e3 Be2 Qec3 Bc7 Qf6+ Ke8 Qf5 Ra1 b1Q Bf1 e2 Nb4 Nd7 b8B Ne5 b7 e1R Nd5 Qc1b2 Ra5 Rh5 Ne3 Nf6+ Kd8 Bh6 Ke7 Bf4 Rh2 Qb5 Rh1 Q1b2 Ne2+ Kc5 d4+ Kb4 d5 Kb3 d6 g1B d7 Nd3 d8B Nc1 Bg2 Rf1 Ng3 Be6 Ng4 Kc2 Ne5 Ba7 Nf7 Kb1 Rh2 Bb3 Rh1 Qg5 Nf5 Bc2 Ne3 Qgf5 Rg1 Bh2 Bg3 Rg5 Bbf4 Nh5 Bdc7 Rd8 Rh1 Rd5 Rg1 Rf2 Rd1 Rf1 Rd3 Rg4 Bg5 Rc4 Rd4 Rcc5 Rh4 Nf6 Rh8 Nh5 Be1 Be5 Bd2 Bf4 Bh4 Be5 Bg3 Bf4 Bb6 Bfb8 Bbc7
NR3qB1/4nn2/NqrN2P1/p1kr1P2/b6K/B1r1pR1N/3bPp1q/7n b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Nh3 cxd4 Ng1 e5 f4 Ne7 f5 Ng8 Qd2 Na6 Qg5 Nb8 Qf4 exf4 b4 f6 Ra6 Bc5 Re6+ Be7 Re5 fxe5 Kd2 Bd6 Ke1 Bf8 Kf2 Ke7 c4 Kd6 g4 h5 g5 a5 b6 h3 b5 e4 b7 h4 g6 f3 b6 h2 Bf4+ Kc5 Bg5 d5 Bh6 d3 Bh3 d2 Bg7 d1Q Na3 d4 Bg2 h3 Kg3 f2 Nb5 e3 Bf1 d3 Nc7 d2 Bh6 Ra6 Bg2 Nd7 b8R Ne5 b7 Nf7 Bd5 Rc6 Na8 Qb6 Kh4 Ne7 Be6 Bd7 Bd5 Kb4 c5 Qc1 Ba2 d1R Bc4 Rd5 Bb3 Re6 c6 Kc5 c7 Qa3 c8N Rc6 Nd6 Bg7 Ba2 Bc3 Bc4 Rd8 Bf8 Bd2 Ba2 Rd3 Bd5 Rc3 Ba2 Nh6 Bg8 Be8 Rc8 Nf7 b8N Rd7 Na6+ Kd5 Nb4+ Kc5 Nb5 Rd5 Rb8 Bd7 Nd6 Be8 Nf3 Bd7 Rg1 h1Q Ng5 h2 Rg3 Qg1 Rh3 h1N Rf3 Qh2+ Nh3 Rc7 Bg7 Ba4 Bf6 Rc6 Be5 Rb3 Bb2 Rc3 Bc1 Qa2 Ba3 Qc4+ Kh5 Qca6 Kg4 Qc8 Kh4 Qf8 Na6+
1bn1b1b1/2R5/nRrp1n1K/PB2Bqp1/4nk1p/2R2P1b/2P1R3/rN4N1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 h4 Nh6 g4 Ng8 h5 Kf7 h6 gxh6 Qe2 Ke8 Qd2 Ra4 Qd1 Ra8 g5 Nf6 g6 Ng8 Qd2 Nc6 Qf4 Nb8 Qg5 hxg5 Ke2 h5 Kf3 b5 a4 e5 f6 h4 Kg4 d3 g7 Kf7 Ra3 Ke6 f7 e4 Nf3 d2 Nh2 Ke5 Re3 d1B+ Rf3 e3 Nd2 b3 Bd3 b2 Ndf1 b1N Be4 b4 Bh7 e2 Kh5 e1N Ng3 b3 Ne2 b2 Nf4 Ne7 g8R Nc3 Rf1 b1B Rg1 Qa5 Nf1 Ng2 Bb2 Ne3 Rg2 Ng4 Nd2 Ba2 Rg6 Bg7 f8R Bg8 Rc6 Be2 Rf7 Bb5 Rg6 Ra7 Nb1 Ke4 Bc1 Be5 Ne2 Bc7 Rh6+ Ke5 Bd3 Ne4 Ng1 Rh7 Be3 d6 Bb6 Rg7 Rh7 Ngf6+ Kh6 Be8 Be3 Qc5 Bb5 Bh3 Rh2 Nc8 Bd4+ Ke6 Ra3 Kf5 f3 Kf4 Rc3 Qf5 Re2 Ra5 Rd7 Na6 Re7 Bb8 Rb7 Rc7 Rb6 Rc4 Rc7 Rc6 Bc4 Rb5 Bd3 Rb4 a5 Ra4 Bb5 Ra1 Be5+
1BR3Bb/K2p1p2/nnPr1r2/b4P1n/B1b2b2/P1r3NR/1n4kN/Bbq5 b - - 0 1 illegal: No proof kernel
1b2Rb1B/1P1np1qp/1q2PN2/3N1Pq1/1R4Bq/4n1rq/8/KbBBkbr1 b - - 0 1 legal: proof: e4 b5 c4 d5 h4 dxc4 a4 bxa4 h5 f5 e5 g6 Qg4 gxh5 Qf4 h4 Qe4 fxe4 Kd1 Kf7 Kc2 Kg6 f4 Kh5 d4 Kg4 b4 Kg3 Kb2 Kf2 g4 c5 g5 a5 f5 a3+ Ka2 h3 e6 c3 b5 h2 d5 a4 g6 c4 g7 c2 d6 c3 b6 e3 d7 e2 Bh3 e1Q Bh6 c1Q Bd2 c2 Ba5 Nf6 g8B Qh6 Bb4 c1Q Nd2 Nd5 Bc3 Ne3 Be5 Ba6 b7 Bf1 Bf7 Rg8 Bf6 Rg3 Bg5 Qb6 d8B Nd7 Bg4 Qh3 Rb1 Rc8 Ka1 a2 Ne2 Rb8 Rg1 h1B Nc4 Be4 Nd6 Qeb4 Bfh5 Ke1 Nc3 Bd3 Be2 Qbh4 Bd1 Qd2 Rb4 Bb1 Bhf3 Rc8 Nd5 Rc1 Ne8 Qdg2 Bc7 Qd2 Be5 Qdg2 Rh1 Qg1 Kb2 a1B+ Ka3 Bc3 Bh8 Be5 Bg4 Bb8 Kb2 a3+ Ka1 a2 Nef6 Qgg2 Rh2 Qg1 Rc2 Qgg2 Kb2 Qg1 Rc8 a1Q+ Kb3 Qe5 Bh6 Qf4 Kb2 Qhg5 Ka1 Qg7 Rc5 Qgh1 Rc2 Qfg5 Rc8 Qhh4 Re8 Q1h3 Rb2 Rc2 Rb5 Rcg2 Rb4 Rg1 Re4 Qf4 Rd4 Ng2 Rb4 Qd2 Be3 Qc1 Bd4 Qcg5 Bb2 Ne3 Bc1
qB2n1qr/6pR/3B1NB1/p1N4P/1rbb2Pq/P4b2/b1BKR3/qqn3k1 b - - 0 2 legal: proof: f4 e5 c4 exf4 d4 h5 g4 h4 c5 b6 Qd2 bxc5 Qc3 cxd4 Qf3 d3 Qg3 hxg3 h4 Ke7 e4 Kd6 b4 Ke5 b5 Kd4 a3 a5 h5 f5 e5 d5 e6 c5 e7 g2 e8B c4 b6 d2+ Kd1 Ke3 b7 Kf2 Ba4 c3 Bb2 f3 Rh2 f4 Be2 d4 Ba6 Be6 Bf1 Nf6 Bfb5 Nbd7 b8B Ne5 Bc7 Nd3 Bd7 Ne8 Rh3 Ba2 Rh4 Rb8 Kc2 Bc5 Rh3 Qh4 Ne2 g1Q Nc1 Qh1 Bdb5 Kg1 Ba6 f2 Bc8 f1Q Bb6 f3 Rh2 f2 Bf5 Qa8 Bc7 Qfh3 Bh7 f1B Nb3 Qhg2 Bc1 Qgd5 Bf5 Rb6 Bb8 Qg8 Bh7 Be2 Rf2 Bf1 Rf6 Rb4 Rh6 Be2 Bg6 Bf3 Bb5 Bd5 Ba4 Bc4 Kd1 c2+ Ke2 Ba7 Nc3 Bc5 Bb2+ c1Q Rh7 Bb6 Nd5 Bc5 Kf3 d1Q+ Ke4 Qcc2 Rc1 Qc3 Rc2 Qb1 Re2 Nc1+ Kf4 d3 Nf6 Bf2 Nc5 d2 Bac2 Qd4+ Re4 d1B Ba1 Qc3 Re3 Bf3 Re2 Be4 Bb2 Bb7 Ba1 Bf3 Bb2 Be1 Ba1 Qcb2 Ke3 Bf2+ Kd2 Qe5 Nd5 Qef6 Bd4 Qe5 Be3 Qeb2 Nf6 Q2a1 Bef4 Bd4 Bfd6
rq1q2n1/p1r4b/k3nr1B/Bq5B/1P3rpK/Rr2qP1N/P1NR4/b1B5 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 g6 f5 Nc3 f4 Qf3 hxg6 Qd3 g5 Qg3 fxg3 Nb1 g4 h4 Kd7 d4 Kc6 b4 Kb6 d5 g5 f3 e5 d6 c5 h5 g2 Kf2 c3 Kg3 c4 h6 c2 d7 c3 h7 e3 Rh4 e2 Bb2 c1Q Ba3 e1R Bb5 c2 Rh2 e4 Bf1 e3 Nh3 g1R+ Rg2 e2 Nd2 Ka6 Nf2 Nc6 Bb2 Nd4 Nd1 Ne6 Bc3 Bg7 Nb3 Qf4+ Kf2 c1R Bb2 Qb8 Nd4 Rc7 Kg3 Bb7 Nc2 Be4 Nf2 Rb1 Ba3 Rb3 Re1 Ba1 Bc1 Qb5 Rd1 e1Q Rd3 Qe3 Nh3 Qeb6 Re3 Qbb8 Bd3 Rd1 Bc4 Rd4 Rd2 Bd3 Bd5 Rf4 Be4 Rf6 Bg6 Be4 Bh5 Bg6 Kf2 g3+ Kg2 g4 Red3 Nh6 Rc3 Rhf8 h8B R8f7 Bg7 Ng8 Bh6 Bh7 Re3 Rf4 Rc3 R7f6 Rcd3 Qf8 d8B Qe7 Kg1 g2 Kh2 Qd6 Kg3 g1Q+ Kh4 Qe3 Rc3 Rc5 Ba5 Rc7 Rcd3 Qdd8 Rc3 Rb1 Ra3 Rb2 Rd4 Rb3 Rd2
4b1rN/2rB4/PR1Br3/1p1kB1Np/2rb1n1q/1n4rb/RP2pP2/1B1n3K b - - 0 1 illegal: No proof kernel
3n4/rp2p3/rP3k2/1q1pb3/R2PBb2/1BrB2B1/2qrPrbR/K3n1NN b - - 0 3 legal: proof: h4 a5 f4 c5 a4 g5 b4 c4 g4 Na6 c3 Nb8 b5 h6 Qb3 gxf4 g5 h5 Ra2 Na6 Rb2 Nb8 Qb4 axb4 Rb3 cxb3 Rh2 Ra7 Rg2 Ra8 Rg4 hxg4 Kd1 f5 d4 Kf7 b6 d5 g6+ Kf6 c4 b2 Kc2 b3+ Kc3 f3 c5 f4 c6 g3 c7 f2 g7 g2 a5 f3 a6 Ra7 h5 Qe8 h6 Nc6 h7 Nb4 Na3 b1R Nb5 b2 Nd6 Qb5 Nf5 Nc2 Bh6 Ne1 Be3 Rd1 Nh4 b1Q Bf4 Nh6 g8B Nf7 Bg3 Bh6 Nf5 Nd8 Bf7 Re8 h8R Bf4 Bg6 Rd2 Rh2 Rh8 Be8 Rh3 Bg6 Bd7 c8B Be6 Bd7 Qa2 Nh4 Bf5 Bc6 Be4 Nf5 Be5 Bf4 Qab1 Ng3 Qa2 Nh1 Rg3 Nh3 g1B Bg2 f1R Bf5 Be3 Ng1 Rh3 Bg3 f2 Bcd7 Bf3 Bd3 B3f4 B7f5 Be4 Bc2 Bf3 Bfd3 Be4 Bf3 Qaa4 Bb3 Qa2 Bg4 Bg2 Bgf5 Qaa4 Bdc2 Qac4+ Kb2 Qc7 Ka1 Qcc4 Bce4 Qc2 Nf3 Rg1 Bg6 f1R Bd3 Rf2 Bge4 Rgf1 Ng1 Rf3 Bdc4 Rc3 Bcd3 Rf2 Ba2 Ra8 a7 Ra3 Bf5 Ra6 Bfe4 Rc8 a8R Rc3 Rc8 Ra7 Rc4 Rca3 Rb4 R3a6 Ra4 Bg5 Bf4 Rhf3 Bg3 Bgf4 Bb3 Re3 Bdc4 Rc3 Bcd3
2Rr1r2/6p1/P3KRP1/2NpB2b/2Bq1pP1/1bbr4/Nq1krq1R/R2n2n1 b - - 0 1 illegal: Other
B1n5/nP1pN1RK/1Nr2Bn1/4Rp1B/brk3b1/p1q5/1rP2P1b/2bn2B1 b - - 0 1 legal: proof: d4 b5 a4 bxa4 Qd3 c5 Qd1 cxd4 g4 e5 g5 e4 Qd3 exd3 g6 hxg6 Na3 g5 Nb1 g4 Kd2 Ke7 e4 Ke6 h4 a5 b4 g5 e5 Kd5 h5 f5 e6 a3 b5 a4 h6 a2 h7 a3 e7 g3 e8B g4 b6 g2 Rh4 g3 Rh5 Qf6 Be2 Ne7 Bf3+ Kc4 Be2 Bh6+ Rg5 Ra4 Bf3 Nbc6 Bg6 Rb4 Bg4 Na7 Bd1 Bb7 Bgh5 Rc8 h8B Rc6 Ne2 g1N Nbc3 g2 Nf4 Ne2 Ncd5 g1B Rg7 Nec8 Ne7 Bh2 Rb1 a1R Rb2 Ng3 Bdf3 Ne2 Rb1 Ra2 Be4 Ra4 Rb5 Rb2 Re5 Rab4 Bh1 Ba6 Be4 Bb5 Bh1 Rd6 Ba8 Rc6 b7 Bg5 Rf7 Ba4 Rg7 Bh4 Nfd5 Bg5+ Kd1 Bh6 Bf4 Bg5 Ke1 d2+ Kf1 d1N Kg2 d3 Kf3 d2 Bg3 Bg1 Bh2 Nf4 Kg3 Qd6 Kf3 Qc5 Kg3 Bh6 Kh4 Qe3 Rg3 Qc3 Bf6 Kb5 Rg7 Kc4 Bf3 Ng6+ Kh5 Be3 Bg4 Bc5 Kh6 Be3+ Kh7 Bg5 Bg3 Bh2 Bf3 Ne3 Bg4 d1B Bh5 Bg4 Bh4 Bhf4 Bg3 Nd1 Bh2 Bc1 Bg1 Bgf4 Re2 Bg3 Re5 Bh2 Nb6+
1bK2B2/P1N1p2p/Rp1P1bR1/1n6/1NRbq2P/2bRpr1B/3q3r/nb1k4 b - - 0 1 legal: proof: e4 f5 b4 d5 c4 dxe4 g4 fxg4 c5 Qd5 b5 Qd8 Qc2 b6 Qb3 bxc5 b6 c4 b7 Nh6 Qb2 Ng8 Qb6 axb6 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Ke5 Kb4 f4 c5 a4 Kb3 h4 Kc2 d4 g5 f5 g3 a5 c3 a6 c4 d5 g2 f6 g4 f7 g3 Ba3 Nf6 Bb2 Ne8 Nh3 g1B Ra2 g2 Na3+ Kd1 Nf4 c2 Rh3 c1Q Nb5 c3 Ne6 c2 Rb3 Qe3 Nc5 c1B Nd6 Bd2 Na4 Nd7+ Ke6 Bh2 b8R g1B Ba1 Bg7 f8R Bf6 Bh3 Bdc3 Nb5 Nd6 Nc7 Nb5 Rg8 Qe1 Rg6 Rf8 Nc5 Bgd4 Rb4 e3 Ra3 Qh1 Rc4 Bhe5 Nd3 Qe4 Ne8 Ra7 Ra8 Rc7 a7 Rc5 Ra6 Bb8+ Ne5 Bb7 Nc7 Bg5 Bf5 Bd2 Rc2 Bb2 Rc4 Qg2 Rb4 Rc2 Ne8 Bc7 Rc8 Bb8 Nd3 Bg7 Be5 Bc3 Re4 Qf3 Rg4 Rh2 Rd4 Qh1 Bf6 Qg2 Bh3 Nc5+ Kf5 Nb3 Ke6 Rf7 Rcc4 Na1 Nc7 Qc2 Be5 Rf3 Nb4+ Qd2 Bf6 Qh8 d6 Be4 Kd7 Bb1 Be5 Qf8 Rd3 Qf4 Kc8 Qe4 Bf4 Bgd4 Be5 Rg2 Bf4 Bgf6 Bh6 Rh2 Bf8
8/4rP1q/K2b1B1p/R1B3p1/1p2n1Bp/PNnnN1R1/1Bb4P/rb1kb1q1 b - - 0 1 illegal: No possible last move
2bB2KR/4r1bp/1rq3rq/p1nP1pNn/3pBBn1/P5Pn/6R1/2kN1B2 b - - 0 1 illegal: No proof kernel
R3RK2/P2p1pBB/4N3/1p1nB1nr/1nPbp1q1/1Pr4k/4N2p/q1q2b1B b - - 0 1 illegal: No proof kernel
1Q2b1Q1/K7/b5P1/PP3n1q/k1N1QR2/bqr1N1Np/1n1r4/B1bb2rn b - - 0 1 legal: proof: c4 e5 f4 exf4 b4 g5 h4 gxh4 a3 d5 cxd5 a5 Rh2 a4 Rh3 Ra6 Rh1 Ra8 e3 b6 Bc4 b5 Bb3 axb3 a4 b2 a5 Bb7 Ra2 Bc8 Ra4 bxa4 Ke2 Kd7 Kd3 f5 Kd4 h5 g4 c5+ Kc4 h3 Kb5 c4 d4 f3 e4 h4 d6 f2 e5 f1B g5 a3 g6 f4 d5 h2 Qf3 h3 Qg3 a2 Ne2 a1R Nd2 b1Q Qg5 f3 Qh5 c3 Bb2 f2 Qh6 c2 Qh5 c1B Qh6 Nc6 Nb3 Qg5 Kb6 Qh5 Nd2 Ba6 Qf4 Rd8 Qe4 Nge7 Nc4 Nf5 Ng3 Be2 Rf1 h1N Ne3 Bd1 Bd4 Qb3 e6+ Kc8 e7 Kd7 e8N Ne5 Bc3 Nc4+ Ka7 Nb2 Bd4 Rc8 Bf6 Rc3 Be5 Kc8 d7+ Kd8 Nd6 Kc7 Ndc4+ Bd6 Re1 f1B Bd4 Bd3 Rf1 Rd8 Rf4 B3e2 Na3 Beb5 Nac4 Bc6 Bf6 Be7 b5 Ba3 Nd2 Kd6 Ndc4+ Kc5 d6 Kb4 Bh8 Rb8 d8Q Be8 d7 Ka4 Bd4 Rb6 Qb8 Rd6 Bh8 Rd2 d8Q Ra2 Qdd5 Rg2 Qg8 Rg1 Qba8 Nd3 Qd8 Rd2 Qb8 Nb2 Qc2 Nd3 Nd6+ Rc4 Ba1 Nb2 Qe4 Rcd4 Ndc4 R4d3 Qbe5 Rc3 Qb8
Kb2Qb1n/Qrp4q/4b3/rQ3nBr/1P3bNR/2RP1kPq/8/1q2b2R b - - 0 1 legal: proof: c4 h5 a4 e5 f4 b5 axb5 exf4 c5 f3 g3 g5 c6 h4 Nc3 h3 Bg2 hxg2 Nd5 dxc6 Qa4 c5 Qd1 c4 Nf4 gxf4 Kf2 Kd7 e4 Ke6 h4 Ke5 b3 f5 b6 a5 h5 a4 h6 a3 h7 c3 b7 a2 Ne2 g1B+ Kf1 c2 Rh3 f2 Kg2 f1Q+ Kh1 f3 Nd4 f2 Bb2 c1B Qc2 f4 Bc3 f3 Rh4 Nh6 Qb1 Nc6 b8Q Qe7 Qa7 Nf7 Nf5+ Nd4 Nh6 Be6 b4 Rb8 Qd3 Rb7 Rb1 a1B Rb3 Qd1 Qe2 f1R Qb5+ Bd5 Ra3 f2 Kg2 Qc2 Bb2 Qb1 Rc3 Nf5 d3 Bf4 Kf3 Rc1 Qba6 Be6 Qb5+ Kf6 e5+ Kg5 Ke4 f1Q Ng4 Qh3 Ba3 Bf2 Bb2 Be1 Ba3 Rc2 Bc1 Ra2 Be3 Ra5 Bd2 Bc8 Kd5 Be6+ Kc6 Bb2 Rc4 Bd4 Rc3 Rg8 Be3 Nh8 Bc1 Rg6 Bd2 Rh6 Bc1 Bg8+ e6 Rh5 Be3 Qg7 e7 Be6 e8Q Qh6 Qab8 Ba7 Bc1 Ng6 h8R Qg7 Rh7 Nh8 Qa8 Bb8 Qa7 Qf1 Rh6 Qh7 Rh1 Rh2 Be3 Qh3 Rh4 Qf1 Qbc5 Rbb5 Nf6 Rh3 Bc1 Be3 Rd4 Rh5 Rdh4 Qh3 Qcb6 B3d2 Kb7 Be3 Ka8 B3d2 Qbc6 Rb7 Qb5 Be3 Rd4 B3d2 Ne4+ Kg4 Nf2+ Kf3 Rh4 Bdh6 Ng4 Bg5 Bf4 Bgh6 Be5 Bg5 Bf6 Bf4 Bg5
1b3n2/1pq5/qR1P1Qb1/4qQN1/r3P1kP/r1nN1N1n/5rn1/2BQb2K b - - 0 1 illegal: No possible last move, all moves rejected
2R4K/2B1bb2/Pq6/2rn3B/bBP3pk/1pnr1QN1/2Q1b2P/2rq2nQ b - - 0 1 legal: proof: b4 c5 d4 cxd4 e4 g5 f4 f5 exf5 a5 f6 axb4 a3 Qc7 f5 Qd8 g4 Bh6 a4 Bg7 Nc3 Bf8 Nd5 h6 Nf4 gxf4 g5 h5 Ra3 Qc7 Rg3 Qd8 Rg4 hxg4 Ke2 Kf7 Kd3 d5 c4 b5 a5 e5 a6 e4+ Kc2 f3 Qe1 f2 Kb2 b3 Qd1 d3 Kc3 b4+ Kd4 d2 Ke5 d4 Ne2 e3 Qe1 d1B Qc3 d3 Bd2 b2 Qa3 b1N Ng1 e2 Qc1 e1R+ Ne2 Be6 Bf4 d2 Qc2 Ne7 Bg2 f1Q Be4 Nc3 Ng3 Rh3 Rg1 Qe2 Rf1 Qb6 Rf3 Ned5 g6+ Ke8 f7+ Ke7 g7 Rf1 Qb2 Ba4 g8Q d1B Qc2 b3 Qg6 Ra7 Re3 Rc7 f6+ Kd7 Qh7 Be7 f8B Bf7 Bg6 Rc5 Bh5 Nc6+ Kf5 Re1 Bc7 Ne5 Kg5 Ke6 Kh6 Qd3 Kg7 Be2 Kh8 Rc1 Qe4 Qd2 Qh1 Qd1 Rd3 Nf3 Rd4 Ng1 Rd2 Bg8 f7 Kf6 Rd3 Kg5 Rd4 Nb4 Rd8 Kh4 Re8 Nbd5 Rc8 Bg5 Bfd6 Be7 f8Q Be6 Qf2 Bf7 Qf1 Ra5 Bb4 Rc5 Ne4 Re3 Qff3 Rd3 Ng3
4K1Q1/1b2Q1QN/1bp1nb2/NpP2n2/N3kRrr/4P3/1q1b1bP1/Bb3q2 b - - 0 1 legal: proof: h4 g5 b4 gxh4 a4 b5 a5 f5 Ra4 bxa4 e4 fxe4 Ke2 e3 Kd3 e2 Kd4 Bh6 Kc3 Bf8 Kd3 e1B Ke2 e5 b5 a6 b6 Qe7 Kf3 e4+ Kg4 e3 Kh3 Qg5 Bb5 e2 Kh2 Qe3 dxe3 axb5 Kh3 Ke7 Kg4 Kf6 Kh5 Kf5 c4 d5 f4 h3 b7 c6 a6 d4 a7 d3 Qc2 h2 Qb2 a3 Nd2 a2 Qg7 a1B Ne4 d2 Nf6 d1B Qh6 Na6 b8N Bd2 Ba3 e1B+ Nf3 Bf2 Rf1 Bc5 Qg7 Bb6 c5 Ne7 Nbd7 Bc2 Nfe5 Nc7 Nc4 Ne6 Na5 Bb7 Bb2 Rag8 a8Q Bb1 Bd4 h6 Nh7 Ke4 f5 Bac3 f6 Nf5 Kg6 h1Q Kf7 h5 Qe8 h4 Qe7 h3 Be5 h2 Bd4 Bfe1 Rf3 Qf1 Be5 h1Q Bd4 Bd8 Nb6 Bf2 Na4 Bb6 Be5 Qc1 Bd4 Qb2 Be5 Nf8 Ke8 Qf1 f7 Ne6+ f8Q Bd4 Qg3 Rg4 Qg8 Rf4 Qgg7 Rg4 Bc7 Bf6 Be5 Qa3 Ba1 Qb2 Nf8 Rh5 Nh7 Rhh4 Rf4+
k2KB3/1R2QQ1r/2qnrPp1/3Pqq1r/2pQqn2/2Bb2Pn/1nB5/3N4 b - - 0 1 legal: proof: e4 a5 c4 d5 h4 e5 d4 g6 b4 axb4 a4 Bg7 h5 Na6 h6 Nb8 hxg7 dxc4 d5 Ra5 Na3 Ra8 Nc2 f6 Nd4 exd4 e5 f5 Ra2 Nc6 Re2 Nb8 Re4 fxe4 Kd2 Kd7 f4 c5 e6+ Kc7 f5 b5 f6 Kb7 g3 h5 a5 e3+ Kc2 b3+ Kb2 d3 Ka3 h4 e7 d2 e8Q c3 Nf3 c2 Nh2 e2 Qe5 e1R Qg4 d1N Qb2 h3 Bd3 b4+ Ka4 Rh7 Kb5 Na6 Qh4 Qe7 Bg5 c1Q Be4 Nc7+ Ka4 Qe5 Be3 Ne7 g8Q Nf5 Bf4 Ne6 Kb5 Nd6+ Ka4 Qc4 Qa1 b2 Bc2 b1Q Nf1 h2 Bd2 Nf4 Bc3 Bf5 Ne3 Bd3 Qa3 b3+ Qb4+ Ka7 a6 b2 Ka5 Qce4 Qd4 Qc1 Qf7+ Kb8 Kb6 b1Q+ Qb4 Nb2 Nd1 Re3 Re1 h1N Qd4 Nf2 a7+ Kc8 Qh2 N2h3 Qe2 Rb8+ Kc6 Rb4 a8B Kb8 Kd7 Rb7+ Kd8 Rh5 Qg8 Rbh7 Bc6 Q4f5 Be8 Ka8 Bca4 Qcc2 Qf7 c4 Rf1 Qb3 Rf2 Qb5 Bc2 Qc6 Qe1 Re2 Rf3 Qg5 Re3 Qef5 Re7 Re6 Rb7 Qe5 Qee3 Qgf5 Nf2 Qh1 Nd1 Qhe4 Qc5 Nc8 Qce7 Nd6 Qd4
2nR1q2/3n1qQ1/3p1P2/B2rP2n/6Q1/1KbN1Bbp/2p1P1Qr/k1B2q1b b - - 0 1 legal: proof: g4 a5 a4 b5 c4 g5 b4 e5 h4 e4 Na3 e3 Nc2 bxc4 b5 f6 Nb4 axb4 dxe3 Na6 e4 Nb8 e5 gxh4 g5 f5 Ra3 Bb7 Rg3 Bc8 Rg4 fxg4 Kd2 Kf7 Kc2 Ke6 f4 h5 g6 c5 a5 h3 b6 b3+ Kb2 g3 b7 g2 g7 h4 a6 h2 a7 c3+ Ka3 b2 Bd2 Kd5 f5 Kc4 f6 b1Q Be1 c2 Qd6 c1B+ Ka4 Qg6 Qc7 Qf7 Qb6 Bf4 Bg3 Kc3 Qe6 Kb2 Qg4 c4 Be1 c3 Qg5 c2 Qg4 Ne7 g8Q Ka1 Qf3 Bg3 Nh3 g1Q Bg2 Qf1 Rg1 h1N Nf2 d6 Nd3 Bh6 Qh7 Nd7 b8B Qdf8 Ba5 Bb7 Qg4 Nc8 Bf3 Bd2 Qhg7 Bc3 Bbc7 Rb8 a8Q Be4 Qc6 Rb5 Bcb6 Rd5 Qa8 h3 Kb3 Rg8 Qh7 Rg6 Qg7 Rg5 Be3 Rf5 Bg2 Rf2 Bf3 Rh2 Rg2 Bf4 Bc1 Ng3 Qa7 Nh5 Qf2 Bfd2 Rg3 Be1 Qg2 Bf2 Qh4 Bfe1 Rg6 Bg3 Qg4 Bb2 Rh6 Bc3 Rh8 Ndb6 Qf2 Q8e7 Rd8 Qef8 Bg2 Nd7 Qg1 Qf5 Bf1 Bh1 Bg2 Qf2 Bf3 Qf1 Qg2
2QNB1r1/2qbQr2/N2n3p/1PNpp1R1/5rq1/P1n5/1KQP2bk/4n1n1 b - - 0 1 legal: proof: h4 b5 c4 bxc4 g4 Ba6 b3 Bb7 g5 Bc8 g6 h6 Bb2 h5 Be5 Ba6 Bf4 Bc8 Bh6 gxh6 e4 a5 b4 f5 b5 fxe4 a3 Bg7 Ra2 Be5 Rb2 Bf4 Rb4 Bg5 hxg5 axb4 f4 d5 f5 Kd7 g7 Kd6 g6 Ke5 f6 Kf4 f7 Kg3 f8Q e5 Qf5 c5 Qd7 e3 Qa4 e2 Nh3 c3 Qd6 c4 Qaa6 h4 Qdc6 c2 Qa5 b3 Qcb6 b2 Qba6 c3 Qa7 Qc7 Ng1 h3 Qa4 h2 Nf3 Nc6 Ng5 Nf6 g8N Rh7 g7 Nd4 Ne6 Bd7 Nc5 Ne8 Ne7 Nd6 Na6 Rg8 Bh3 c1Q+ Qd1 c2 Nc3 b1N Nc6 Qb2 Na4 c1R Nd8 Nc3 N4c5 Qb4 Be6 Kg2 Bf7 Rb1 Rf1 h1B Rg1+ Kh2 Rg5 Bg2 Be8 Rb2 Qc2 Nf3+ Kf2 e1N Ke3 Ng1 Qb7 Rf8 g8Q Rhf7 Qg7 Qc4 Qc8 Rg8 Qf8 Qg4 Qe7 Nef3 Kd3 Rb4 Qa4 Re4 Kc2 Ne1+ Kb2 Ref4 Qc2
5q2/P3rP2/P1r5/b1bpNbQ1/Q3r1bN/R3pQnN/2np4/1K3Bqk b - - 0 1 legal: proof: f4 a5 b4 c5 bxa5 f5 g4 g5 d4 cxd4 e4 fxe4 a4 h6 f5 Na6 Bf4 Nb8 Ra3 Rh7 Rg3 gxf4 g5 Rh8 g6 Qc7 Rg2 Qd8 Rg5 hxg5 Kd2 d5 Kc1 Kd7 h4 Kd6 c4 Ke5 a6 b5 g7 d3 a5 b4 c5 b3 h5 f3 a7 Kf4 c6 Kg3 c7 e5 h6 b2+ Kd2 f2 h7 g4 a6 e3+ Kc3 e2 f6 e1B+ Kb3 e4 Ka2 e3 f7 Nf6 g8N Nc6 Rh4 Ne4 Bg2 f1R Nc3 b1B+ Kb2 Nd4 Nb5 Ba5 Nd6 d2 Bh3 Kh2 Qf3 g3 Nf5 g2 Nf6 Ng3 Ng4+ Kh1 Ne5 Nc2 Ra4 Rc1 Nh4 Bg4 c8Q Bc5 Qc6 Re8 h8Q Re7 Qg8 Qf8 Qg5 Rd8 Ra3 Rde8 Neg6 Re4 Ne5 Re7 Qa4 Rf1 Qd1 Rf6 Qf3 Rc6 Nc4 Ba2 Ne5 Bc4 Kb1 Bf5 Bg4 Be2 Nh3 Bd1 Qff4 g1Q Be2 Qg2 Bc4 Bdg4 Bf1 Qg1 Qf3+
4KNq1/1qP1Rn2/r1rpQ3/pp6/2n4B/P1P3nb/kqQ1qr2/NQ1N4 b - - 0 1 legal: proof: f4 e5 b4 exf4 b5 g5 b6 Bg7 c4 Bc3 dxc3 cxb6 Bd2 b5 Bc1 b4 a3 g4 Ra2 Qg5 Rd2 Qf6 Rd3 Qb6 Rf3 Qd8 g3 h5 Bh3 gxf3 g4 Rh7 g5 Rh8 Bg4 hxg4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd4 a5 Kc5 b5 h4 g3 e4 g2 g6 b3 g7 f2 e5 f1Q h5 f3 h6 f2 h7 b2 Qe1 f4 Nd2 b1Q Nb3 f3 Na1 Nc6 Bg5 Ra6 Nh3 g1Q Bh4 Qgg2 Qc1 Nh6 g8Q+ Nf7 Rg1 Qfd3 Re1 f1N Nf2 Qe2 Nd1 f2 Qg7 Qgf3 Qg2 Qbb2 Qh2 Re8 h8N Ng3 Ng6 f1R Qg2 Rf2 Nf8+ Kf5 e6 Ke4 e7 Kd3 Qh2 Nce5 Qg2 Qb7 Qh2 Qbc7+ Kd5 d6 c5 Bh3 c6 Qcb8 c7 Nc4 Qg2 Rc6 Qh2 Qdc8 Qg2 Rd8 e8Q Qbb7 Qe5 Qcg4 Qe6 Ra8 Qh2 Raa6 Qg2 Qed2 Re4 Qe3 Re5 Qg8 Qe4+ Ke2 Qec2+ Ke1 Re4 Qe2 Qe7 Nce5 Qb3 Rf5 Ke6 Nc4 Kd7 Rf4+ Ke8 Rf2 Qb1 Kd2 Qd7 Qf3 Re7 Qh5 Qe6 Qe2 Q1a2 Kc1 Qa4 Qb3 Qd2+ Kb1 Qg5 Qbb2 Qc2+ Ka2 Qf4 Bg2 Qfc1 Bh3 Q1b1+
n2bBn1k/3bQ1Pb/Qb6/1p1pPR2/3P2p1/K4B2/nBq2n1Q/1r1b1N2 b - - 0 1 legal: proof: b4 a5 g4 g5 f4 gxf4 c4 h5 a4 e5 c5 Ra6 g5 axb4 Bg2 b5 Bf1 Rb6 Ra3 Rhh6 Rg3 Rh8 Rg4 hxg4 cxb6 f3 Nc3 Nh6 Nd5 Ng8 Nf4 exf4 d4 d5 Kd2 c5 Kc2 f5 Kb2 Kf7 h4 Kg7 e4 f2 a5 c4 e5 c3+ Kb3 c2 a6 f3 h5 f4 b7 Bd7 a7 Nf6 a8B Ne4 Rh3 Qc7 Rg3 Bc5 Be3 c1B Bh3 f1N Qc2 f2 Nf3 Bb6 Bg2 Nfd2+ Ka2 f1B Nh4 f3 Qb2 b3+ Ka3 f2 Rh3 Bd3 Bf3 f1B Ng2 Bfe2 h6+ Kh7 Bf4 Nf2 Rh5 Bd1 Ne3 Qc2 Nf1 Rf8 Be3 Kh8 Bf4 Bh7 g6 Rc8 Rf5 Rc4 Be3 Rb4 Bg5 Na6 Be3 Nde4 Bf4 Be3 Qa1 b2 Qa2 Nf6 b8Q+ Ne8 Qc7 Nc5 Qa7 Nc7 Bc6 Na8 Qa6 Ne6 Qc4 Bc8 Be8 Nf8 Qc5 Bd7 Qe7 Bd2 Bg5 Be1 Bc1 Rb3+ Ka2 b1N+ Bb2 Bb4 Nh2 B4a5 Nf1 Bg8 h7 Rb4 Rf6 Nc3+ Ka3 Na2 Rf5 Bd8 Ba1 Rb1 Bb2 Bab6 Qg5 Kg7 Qe7+ Kh6 h8Q+ Bh7 Qhf6 Ra1 Qc6 Rc1 Qc7 Rb1 Qh4+ Kg7 Qh2 Kg8 Qd6 Kg7 Qe7+ Kh8 g7+
3q1n1R/QK1pp1br/r4k1P/1n5P/N1p3B1/2QN2bp/1r1NPr2/4qQ2 b - - 0 1 illegal: No proof kernel
2N2Qr1/4PR1K/3pk1n1/Bp1q1r2/pPrRnP2/1rqr4/4p1Qb/6RQ b - - 0 1 legal: proof: e4 f5 a4 e5 h4 c5 d4 exd4 e5 g5 a5 gxh4 a6 c4 Bd3 cxd3 Nd2 b6 Ne4 Bb7 axb7 fxe4 Kd2 Ke7 b4 a5 g4 h5 c4 b5 e6 a4 c5 h3 f3 h4 c6 h2 c7 h3 c8Q e3+ Ke1 e2 Kf2 d2 Kg3 d3 Kf4 Qc7+ Kf5 Nf6 Kg6 Ne4 g5 Rg8+ Kh7 Nc6 b8R Ne5 g6 Qc3 g7 Ng6 Rb7 Kf6 Ra7 Bd6 Qf8+ Ke5 Qf1 d1R Be3 d2 Bb6 Rb1 Ba5 Rb3 Rd1 Rc8 Rc7 Kd5 Qe1 Bg3 f4 d6 Rf7 Rc4 e7 Ke6 Nf3 Nh4 Bb6 Ng6 Rg1 h1Q Ne5 h2 Nc6 Qhf3 Qf1 Qg2 Qf3 h1R+ Qh5 Qgf3 Na7 Bh2 Ba5 Qfd3 Nc8 Qd5 Rc1 d1R Qf3 Rd3 Rcd1 Re3 Rd4 Rd3 Qh5 Bg3 Qh6 Rh2 Qh5 Rg2 Qh1 Bh2 Qe8 Rf8 g8Q Rg5 Qg7 Rf5 Qd8 Rg8 Qdf8 Ne5 Qg3 Ng6 Qgg2
4K1R1/1QQ1N2r/p3q1R1/4p3/1ppP2PP/r3p3/1bnkQbn1/B1Rr3b b - - 0 1 illegal: No proof kernel
8/P4kQn/1b2R1N1/1p2Bpr1/pP2pqr1/bb3RQq/1R2P1qQ/nK1b4 b - - 0 1 illegal: No proof kernel
2nnbNNr/3q2q1/r2r2p1/ppQ1b1N1/2Qp2Q1/K2Pkr1B/PP2R3/4n3 b - - 0 3 legal: proof: f4 e5 c4 exf4 g4 h5 c5 hxg4 Na3 b6 Nb1 b5 d3 Qe7 Bd2 Rh6 Na3 Rh4 Rc1 Rh8 Rc4 bxc4 Ba5 Qd8 Bb6 cxb6 Kd2 Ke7 Kc3 Kf6 Kb4 Kg5 e4 a5+ Ka4 d5 h3 f5 c6 f3 c7 Kf4 h4 g6 e5 c3 e6 b5+ Kb3 f2 e7 g3 e8N g2 h5 c2 h6 c1Q h7 d4 Nf6 Ra6 Rh3 Ne7 Ng4 Bd7 c8Q Qcc7 Qb7 Nbc6 Qe1 Rg8 h8Q Bg7 Qe6 Be8 Nc2 Nc8 Qh5 Be5 Ne1 Rh8 Qa7 Qg7 Nh6 Qdd7 Ngf3 g1N Qc4 Ke3 Qac5 f4 Ng8 Nd8 Ng5+ f3 Bg2 f1R Ne6 Rf2 Nf8 Rf1 Rh1 f2 Ka3 Nf3 Rh2 Nh4 Be4 Ng2 Nf3 Ne1 Bb7 Rg1 Ba8 f1R Ng5 Rff6 Bg2 Rgf1 Bh3 Rfd6 Qg4 Rf3 Re2+
5Q1b/KpnrP1Nb/N1Q3k1/1q1B1q2/6b1/p2pp2N/rPrP3Q/rR2n3 b - - 0 1 illegal: No proof kernel forced: bxDB
5R2/Bb1NP1r1/6rb/R1P2n1n/R1R3k1/rQq2P2/q1r2R1K/q2nbb2 b - - 0 1 illegal: No possible last move
1B6/RprnN1qn/b1nP3N/bn3N1q/KP4NP/1r5r/3q1Q1n/4N1k1 b - - 0 1 legal: proof: g4 a5 f4 d5 c4 h5 cxd5 hxg4 b4 e5 a3 exf4 e3 a4 Be2 Be6 Bc4 Bc8 Bb3 axb3 Ra2 bxa2 a4 Ke7 Ke2 Kd7 Ke1 Ke8 d4 Ke7 Kd2 Kd6 Kc3 a1N a5 f5 a6 c5 h3 g5 a7 f3 e4 g3 Qa4 f4 Qc2 c4 Be3 f2 Na3 f1N Qh2 g2 Kb2 g4 Bc1 g3 Bd2 c3+ Ka2 f3 Nb1 f2 Ka3 c2 Ka4 c1R Na3 Be7 Nc2 Bf5 Be1 Nb3 Bc3 Nd7 Bd2 Ngf6 Bg5 Na5 Nf3 g1N Ne3 Nc6 Ng4 Ne2 Bd2 Nh7 Ne1 Bf6 Qg2 Nh2 Bf4+ Be5 Qg1 f1Q Qf2 g2 Rg1 Rc8 a8N Rc7 Nb6 Rc3 Rh1 g1Q h4 Rh3 Bg3 Rf8 Bf4 Qg5 Bg3 Qfg2 Bf4 Ke7 d6+ Ke6 Nd5 Qh5 Ne7 Bg6 Bg3 Rf3 Bf4 Bf6 e5 Rb3 Bg3 Bd3 d5+ Kf7 Bf4 Ned4 e6+ Kg7 Be5 Ba6 Bg3 Nb5 Bf4 Ndb8 d7 Be5 d8N Nd7 Nf7 Bd6 Qf3 Qd2 Nfh6 Bc5 Qf2 Bb6 Bd6 Qg3 Rg1 Qge5 Rg3 Ba5 Rf3 Qeb2 Rf8 Qf6 Ra8 Qf8 Ra7 Qh8 Nef5+ Kg6 e7 Qg7 e8N Qhg5 Ne5+ Kh5 Ng6 Qg4 Nge7 Q4g6 Nf7 Kg4 Bg3 Qh5 Be5 Rhf3 Nf6+ Kh3 Ng4 Rfc3 N7h6 Re3 Nd3 Rg3 Qe1 Kg2 Qf2+ Kh1 Ne1 Rh3 Bg3 Rc8 Bb8 Rc7 Qf4 Kg1 d6 Rhg3 Qf3 Rh3 Qf2+
2b1n1N1/P1P1N3/1q1nQ1qB/1p2KR1p/7k/1r3r1N/1N3qbP/bNr4r b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 Ra2 c5 e4 d5 exd5 cxd4 f4 g6 Bd3 Ra7 Be4 Ra8 Ra3 Be6 Rf3 fxe4 f5 Bd7 f6 Bc8 Rf5 gxf5 Kf2 Kf7 Kg3 Kg6 Kf4 h5 c4 b5 g4 e5+ Kg3 d3 a5 f4+ Kh3 Kg5 f7 b3 c5 b2 d6 d2 a6 e3 c6 f3 Kg3 e4 d7 e2 Qe1 f2 Qf1 e1Q Qd3 e3 Qc4 d1R Na3 f1B+ Kf3 b1Q Nh3+ Kh4 Kf4 e2 g5 Nf6 g6 Ne4 g7 Qf2+ Ke5 e1R g8N Qdb6 d8N Bg2 Bh6 Rc1 c7 Rg1 Qc6 Nd6 Ne6 Qg6 Nef4 Ra7 Nb1 Bg7+ Nf6 Rg8 Nd3 Rf8 Nb2 Rgd1 Rf1 Nd7+ Ke6 Rd3 Qd5 Rf3 Qe5 Rd8 f8N Re8+ Kd5 Re6 Qe2 Ree3 Ng8 Rb3 Qe6 Nf6+ Ke5 Ra8 Ne7 Bh8 Nd7 Nfe8+ Nf6 Ra7 Kd5 Ra8 Nfg8 Bf6 Na4 Ba1 Nb2 Bd7 Ke5 Rd8 a7 Bc8 Rd1 Rd7 Rd5 Rh1 Nc6 Rdf7 Rc5 R7f4 Nce7 Rc4 Rc6 Rcc1 Rc3 Rf8 Rf3 Rf6 Rf5 Rf7 Rg5 Rff3 Rf5
r1B1r3/pBpP1k1Q/P1KbqN1p/2B3qb/3b2B1/1r6/2B4P/2nRqrn1 b - - 0 1 illegal: Other
3rb1K1/pP3np1/5bbB/4p1p1/1nB1BqPn/Q3P1N1/1B1B4/nR1k1r1q b - - 0 1 illegal: No proof kernel
2b4b/4P3/n4QP1/3Qq3/RPRrp2K/1R2b1B1/k3p3/r1BB2qn b - - 0 1 legal: proof: c4 a5 b4 g5 a4 d5 h4 gxh4 cxd5 b5 axb5 a4 b6 a3 b7 Bxb7 Nc3 a2 Na4 Bc8 Nb6 Ra6 Na8 Rxa8 e3 e5 Nf3 Qg5 Ng1 Ra3 d3 e4 d4 Qe5 dxe5 Rd3 Be2 Rd4 exd4 f6 Nh3 f5 Ng5 e3 Ne4 fxe4 Bd3 Bd6 Bf1 Bf8 g4 Kd7 f4 h5 e6+ Kd6 f5 c5 e7 c4 g5 h3 f6 c3 f7 h4 g6 c2 Qg4 h2 Ba3 c1B Qf3 h3 Be2 Nf6 Bd1 e2 Kf2 Bg7 Kg3 Be3 f8R Nh5+ Kh4 Na6 Rg1 h1R Rg3 h2 Qf6+ Be6 Rc8 Rd8 Rc4 Bh8 Rf3 Rf1 Rg3 h1Q+ Rh3 Qg1 Rg3 Kd7 d6 Bf5 Rh3 Ng3 d5 Nh1 Rf3 Bf4 Rb3 Be3 Rab1 a1Q R1b2 Bc5 Ra2 Qe5 Ra1 Kc8 d7+ Kb7 d6 Kc6 Ra2 Kb5 Ra1 Ka4 Ra2 Rf8 d8B Bc8 d7 Be3 Bc7 Rg8 d8Q Rf8 Qdd6 Rd8 Qc5 Rd4 Qd5 Re1 Bc2 Ra1 Bd1 Qe6 Bh2 Qe5 Bg3 Rc1 Rb1+ Rc2 Bb2+ Kb3 Ra4 Qc7 Qf4 Qe5 Ba3+ Ka2 Qf6 Rc1 Rb3 Ra1 Bc1#
BkR2bbn/1Bnb3r/6PQ/4R2b/Qr3PnK/1B3P2/q1q2p2/4Qr2 b - - 0 1 illegal: No possible last move, all moves rejected
K2bN3/n2B2nN/1b2r1Qb/1nrP2P1/6Pb/NQ1pQ1n1/1rq5/kB6 b - - 0 1 legal: proof: c4 f5 b4 b5 d4 d6 e4 fxe4 a4 Nf6 axb5 Ng8 d5 c5 Ra3 Kf7 Rd3 Ke8 Rd4 cxd4 g4 g5 f4 Nf6 c5 Be6 c6 Qc7 f5 Qd7 Bf4 gxf4 h3 Qd8 g5 Ng8 Rh2 Bf7 Rc2 Bh5 Rc5 Bg4 hxg4 dxc5 Ke2 h5 b6 e5 c7 Ke7 c8B Kd6 b7 a5 f6 a4 f7 c4 b5 Kc5 b6 Kb4 Nf3 d3+ Kf2 c3 Nd4 a3 Nd2 h4 Ne6 e3+ Kf3 e4+ Kg2 f3+ Kh1 a2 Kh2 Ka3 Bg2 Kb2 Nc7 a1N Qg1 f2 Be6 f1N+ Kh3 e2 Nf3 e1B Nb5 e3 Qh2 c2 Bc8 c1B Qh1 e2 Nh2 Nc6 b8Q Be3 b7 Bb6 Bd7 Ng3 Na3 Bh6 f8N Nb3 Nh7 Nbd4 Qg1 Qc7 Qe8 Na7 b8Q Qc2 Nf1 Nf6 Qg6 Ne8 Bf3 Ng7 Ne3 Ndb5 Nf5 Rc8 Qe3 Bea5 Nd6 e1B Ne8 Ka1 Bd1 Rc5 Qb7 Bf2 Kg2 h3+ Kf3 h2 Kf4 h1R Ke5 Rh2 Qb8 Nc3 Kd6 Bd8 Qb3 Bab6 Be6 Ncb5+ Kd7 Qb1 Bc2 Qb2 Bb1 Qc2 Bf5 Rac8 Be6 R8c6 Bf5 Ne4 Be6 Bh4 Bf5 Rf6 Be6 Ng3 Bf5 Nc6 Kc8 Nca7+ Kb8 Re6 Kb7 Qa2 Ka8 Rb2 Qb4 Qb3 Qc3 Qc2 Qb3 Re4 Bc8 Re6 Bd7
1k6/2PbNKp1/2qN1NPB/3P4/nB1r4/2b1r1q1/n1nrQn2/1Q1r2B1 b - - 0 1 legal: proof: g4 e5 b4 h5 c4 d5 a4 dxc4 g5 b5 axb5 Be6 Ra3 Bg4 Rg3 Bc8 Rg4 hxg4 d4 f6 h4 Kd7 e4 Ke7 d5 Ke8 Bg2 Nc6 Rh3 Nb8 Rd3 f5 Rd4 exd4 e5 Bd6 Bh1 Bf8 Be4 fxe4 Kd2 Kd7 f4 c5 e6+ Kc7 e7 a5 e8Q g3 f5 d3 Ke3 c3 Kf4 a4 Ke5 c4 h5 c2 f6 d2 h6 c3 f7 a3 g6 e3 h7 e2 Nh3 e1R+ Qe2 d1R Qe4 a2 Bf4 c1N Ng5 a1N Nd2 c2 Nb3 g2 Na5 g1Q Nc6 Na2 Ne7 Na6 b6+ Kb8 b7 c1Q b5 Nc2 Qe2 Rd2 Ne4 Nh6 Nf6 Nc5 Be3 Rg8 h8N Ra4 Bf2 Qg4 Bg1 Red1 Qd7 Qh4 Qf5 Rad4 Qfd3 Qe1 Qb3 Qa5 Qb1 Na4 Kd6 Bh3 Ke5 Ng4+ Ke6 Kc7 b8B+ Kb7 Ba7 Qg3 Bc5 Qac7 b6 Ka8 Bd6 Kb8 Bf4 Nf2+ Qg4 Bf1 Bh6 Bb5 Qe2 Bc6 Nc8 Bb4 f8B Ba5 Bb4 Bd7+ Kf7 Re8 Ne7 Qc6 Neg8 Re3 Ne7 Rf4 Kg8 Rc4 Nf7 Rcd4 Nd6 Qc7 Kf7 Qc6 Bc5 Bc3 Bb4 Qa3 Ba5 Qac5 Bb4 Qc7 Nde4 Qb5 Nd6 Qbc6 bxc7+
6qN/1r5B/Qqqp1nB1/p3q3/1Q1P2P1/b1Q1BPk1/7n/KNbbr3 b - - 0 1 legal: proof: b4 a5 h4 g5 e4 gxh4 g4 c5 bxc5 f5 a4 b5 axb5 fxe4 b6 Bg7 b7 Bxa1 Rh3 Bg7 Rf3 Bh6 Rf8+ Bxf8 c4 Kf7 d4 Kg6 Kd2 Kg5 Kc2+ e3 Kb2 Kf4 c6 e5 c7 h5 c5 h3 c6 h2 Bd2 h1Q Qb3 e4 Ka2 h4 Bc3 h3 Bb2 h2 Bg2 e2 Ba1 e1B Nd2 e3 Nf1 e2 Qd1 Rh7 Bc3 Nf6 Qc2 Bd2 Bb4 e1Q Be4 Bc1 Bg6 Qd5+ Ka1 h1Q Nd2 Qg8 Nb1 Qe5 Ne2+ Kf3 Be1 Bfa3 Nf4 d6 Bd2 Be6 c8Q Bb3 c7 Nc6 b8Q Re7 Qcb7 Ra7 c8B Qb6 Qa6 Rab7 Bcf5 Qg2 Qcc4 Bd1 Qc3+ Qe3 Qaa8 Rbd7 Bf7 Qa6 Nd5 Ne5 Qbb4 Qb6 Bh7 Rb7 Qa6 Re8 Ne7 Kf4 Bh5 Nf3 Bf7 Nh2 Ng6+ Kf3 Nh8 Kf4 Qbb3 Qgc6 f3 Kg3 Bfg6 Qg5 Qcb4 Re1 Q3c3 Qe5 Be3
3b3b/kqr2Q1K/5b1P/P2bNnr1/2qbNQqr/p4PB1/3Nn2Q/5B2 b - - 0 1 legal: proof: h4 h5 e4 f5 b4 fxe4 g4 hxg4 c4 b5 a3 d5 Rh3 a5 cxd5 a4 Rb3 axb3 a4 Rh7 a5 Rh8 Ra4 bxa4 Ke2 Kd7 Ke3 e5 d4 c5 h5 Kc7 f3 Kb7 b5 g5 d6 b2 d5 c4 b6 g3 d7 g4 d6 g2 Qb3 a3 Qa4 c3 Bb5 g3 Qb3 c2 Qd5+ Nc6 Bd2 c1Q Qe6 Bg7 Nh3 g1R Bd3 g2 Bc2 Nh6 Qf5 Qh4 d8Q Nd4 d7 Ra7 Qg8 Bf6 d8Q Be6 Bd1 Qc4 Nc3 b1Q Qfg4 Ka6 Qa8 Bd5 Qae8 Bd8 Bc1 Rc7 b7 Ka7 b8N Qb7 Nb1 Rhh7 Qh8 Qg5+ Kf2 e3+ Kg3 e4 Qf7 e2 Nd7 e1B+ Nf2 e3 Be2 Bc3 Bf1 e2 Bf4 e1B Be5 Qg6 Kf4 Nhf5 Ne4 Beh4 Nbd2 Bhe7 Qg5 Ne2+ Kg4 Bd4 Bh2 Bg7 Ne5 Bef6 Bf4 Rh6 Qh7 Bh8 Bh2 Qg8 Bf4 Rh1 Bg3 Rg6 Qh6 g1B Qhh7 Bd4 Qh6 Ng7 Qh7 Ne8 Kf5 Rh2 Qe3 Rg4 Qg5 Ng7+ Kg6 Rh3 Kh6 Rh1 Qf4 Rh3 Qe7 Qe6 Qf7 Rg5 Qh4 Qd7 Qf5 Rh2 Qff4 Qg4 Kh7 Nf5 h6 Rh1 Qh3 Rh2 Qg2 Rh4 Qh2
4qbq1/kq2nB2/Q2q1P2/1p1PnN2/3B2bB/nK4Q1/Q1P3b1/4Nrrr b - - 0 1 illegal: No possible last move
N4N1r/nKP2r2/4bBBq/1kQQrn2/3Pp1b1/1n4bQ/3rb2P/B6b b - - 0 1 illegal: No possible last move, all moves rejected
1BR1q1b1/1n1R2KB/1r3rR1/rbQ4q/3b1nPp/1P1rPQ2/3Qq2q/5k2 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 f5 h4 f6 exf6 Nd2 f5 Nb1 f4 Nd2 g5 Ne4 Qc7 g4 Qd8 Ng3 Qb6 Nf3 hxg3 h4 Qf6 h5 Qd8 Nh4 gxh4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 h6 a5 h7 d5+ Ke5 f5 b6 a4 c3 g2 e3+ d3 b7 g1Q Rh3 a3 Bg2 d4 Bh1 a2 Qf3 d2 b3+ Kd3 c4 d1Q c5 Be6 c6 Qe8 c7 Ne7 Kf6 Qe2 c8R Ra5 Rc4 Nd7+ Kg5 Qgh2 b8Q Nd5 Qb7 Bc5 Kh6 Bg8 Rb1 a1Q Qf1 f3 Ba3 f4 Qc1 f2 Rg3 f1B Ra4 f3 Qb2 f2 Qa7 Nf4 Rg1 Bb6 Bb7 Nc5 Kg7 Qh5 Bd5 Nb7 Bd6 Qa3 Bb8 Qe7+ Bf7 Qe8 Rc1 Bc5 Qa8 Ba7 Qa3 Kd2 Be6 d3 Rc8 Ke1 Bf5 d2 Qc5 d1R Re4 Rd3 Re6 Nd8 Qf3 Nb7 Qe5 Bd4 Rg6 Bf7 Rg2 Rf8 h8Q Bg8 Qh6 Rf6 Qg5 Rb6 Qd8 Qb2 Qdd5 Be2 Qc5 f1R Qc2 Rf2 Qd2+ Kf1 Be4 Rc3 Bb1 Bb5 Bf5 Rd3 Be4 Rf6 Qc5 Qc2 Rh6 Qd1 Bh7 Qe2 Rg6 Rb6+ Rf6 Rc3 Qh3 Ne6+ Kh8 Qe1 Qc2 Be5 Qg3 Rf5 Rd2 Nf4 Kg7 Qee2 Rd7 Bd4 Qa2 Rd3 Qd2 Re5 Rg6 Ree6+ Be5 Rf6 Bb8 Qg1 Qf3+ Qgf2 Qfd5 Qh2 Qf3+
3r3b/3bqq1q/Pn2qbP1/Rb1k1Q2/5pN1/Rn3NR1/P4Kn1/r5QQ b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 d4 a5 bxa5 c5 Nh3 cxd4 Ng1 g5 Bh3 f3 Bf4 gxf4 g5 f2+ Kd2 Qb6 Be6 Qd8 Bg4 hxg4 e4 Ke7 Ke2 Ke6 c4 f1Q+ Kd2 f5 h4 d5 a6 b5 c5 d3 e5 b4 h5 f3 Ke3 b3 h6 g3 c6 f2 h7 d2 c7 d4+ Kf3 d3 Qe2 d1Q Rh5 b2 Rh3 d2 Ke3 g2 Qh5 Bd7 c8Q Nc6 Qf3 Nf6 Qf4 Bg7 Rh5 Qde1+ Kf3 d1N Nd2 b1Q Qg4 Ne3 Rh1 Qe7 Rh6 Kd5 e6 Na5 Nc4 Nb3 Rh5 f4 Qf8 Rd8 Ne5 Qc4 g6 f1B Rh3 Qc7 Rg3 Qf5 Rc1 Bfb5 Rc3 Qf7 e7 Q5e6 e8R Qa7 Ne2 g1B Nd4 Ng2 Qf5 Qee7 Ng4+ Q1e5 Qb1 Q5e6 Rd3 Be3 Qg1 Bd2 Kf2 Bc3 Qb1 Bc8 Qa1 Nd7 Qg1 Nb6 Nf3+ Bcd4+ Re3 Bdf6 Rc3 Bcd7 Re3 Rg8 h8Q Qb7 Qh6 Bh8 Qhh1 Rc8 Rd8 Rc1 Rc8 Ra1 Rc5+ Kd6 Qc8 Rd8 Rce5 Qh7 Qc2 Qbd5 Qf5 Q6f7 Rc3 Qde6 Rec5 Bf1 Ra5 Bfb5 Qfb1 Kd5 Qc2 Nd2 Rca3 Nb3 Qf5+
1Q6/3P2B1/4P1b1/PBKp4/Bn2rr1k/bR1b1R2/1rQbqnq1/3Q1qq1 b - - 0 1 legal: proof: f4 a5 g4 e5 d4 exf4 b4 axb4 d5 h5 gxh5 c6 c4 Rh6 c5 Ra5 Nc3 Ra6 d6 Rh8 Nd5 Ra8 Ne3 Qe7 Nd5 cxd5 c6 Qd8 c7 Ra6 Nf3 Ra3 Nd4 Ra8 Nc6 dxc6 Kd2 g5 Kd3 f5 Kd4 Kf7 a4 Kf6 h4 b5 e4 b3 a5 b2 d7 b1R h6 b4 h5 f3 h7 f2 h6 g4 Qf3 b3 Qd3 g3 Qe2 g2 Qc4 g1Q Rh5 c5+ Kc3 b2 Rh3 f4 e5+ Kg5 e6 Ba6 c8B Nf6 Qb3 c4 Kd4 c3 Qc4 c2 Raa3 Ne4 Bb7 Nc6+ Kd3 Nb4+ Kd4 Qb8 Qb3 Bd3 Ba6 Qb5 Re3 f3 Qa4 Kh4 Bg2 f1Q Rb3 f2 Bf3 Qfg2 Bd1 f1Q Bd2 c1B Bc3 Rg8 h8Q Rg4 h7 Bd2 Qe5 Be7 Qc7 Rf8 Qc5 Rff4 h8Q+ Kg5 Qb8 Kh4 Bb7 Qa6 Bc6 Bd6 Bb5 Bf8 Qcd6 Nf2+ Kc5 Bg6 Bh8 Re4 Bg7 Rgf4 Rf3 Be7 Bc6 Qae2 Qc7 Rc1+ Bc2 b1B Bb5 Re1 Bd1 Bd3 Bc2 Rb1 Qa1 Rb2 Qd1 Bd8 Qb8 Bf6 Qdc7 Bfc3 Ra3 Bc1 Bca4 B3d2 Rc3 Ra2 Rb3 Ba3 Qe5 Rc2+ Qc3 Rb2 Qcc2
2BRqb2/PB1p2r1/1k3P1b/q3nrR1/n3B1rn/3P1b1Q/n5RQ/2b4K b - - 0 1 legal: proof: e4 f5 exf5 g5 b4 c5 b5 c4 b6 c3 Bb2 cxb2 f6 axb6 Bd3 b5 Bf1 b4 f4 h6 g4 Qb6 f5 Qd8 Ne2 Ra5 Nf4 Ra8 Nc3 gxf4 Ne4 h5 g5 Ra6 Nf2 Ra8 Ng4 hxg4 Kf2 b1N Kg2 e5 a4 b5 h4 f3+ Kg1 e4 c4 f2+ Kg2 e3 a5 g3 h5 e2 a6 e1B a7 b3 g6 b2 g7 b4 h6 b3 c5 Ne7 g8B Nc3 h7 b1N d3 b2 c6 Na2 c7 Bd2 Rh5 Nbc6 Qc2 Bc1 Bc4 Rg8 h8Q Ng6 Qc3 Bb7 c8B Nce5+ Bd5 Rg7 Rh1 Nh4+ Kh3 g2 Kh2 g1B+ Kh3 Qa5 f7+ Kd8 Qc2 Nbc3 f6 Kc7 Bfg2 b1Q Rh2 f1R Bge4 Bge3 Rg2 Rf5 Kh2 Kb6 Kh1 Na4 Rg5 Qbb4 Qh2 Qe7 Qh5 Rb8 Qf3 Ba8 Qfh3 Qe8 Bdb7 Bf4 Rg2 Bh6 Rb1+ Bb2 Rbg1 Bbc1 Ba6 Rb7 Rg5 Rc7 R1g2 Bd5 Bab7 Rc4 Bf3 Rg4 Be4 Bb3 Rg6 Bd1 Rg5 Bd6 f8R Bf3 Rf7 Bf8 Re7 Qg6 Re8 Qf7 Rd8 Qe7 Q2g3 Qe8 Qgh2
3n3Q/2Bq4/5Bbp/1Q1Pbb1Q/3k1q1b/rpr3B1/NP1rPnb1/2N3K1 b - - 0 1 illegal: No proof kernel
2RRrb2/pK4P1/B1P2B2/qb2R3/n1br1Qn1/5P2/pb3Q1b/r3bQ1k b - - 0 1 legal: proof: e4 c5 a4 g5 d4 f5 dxc5 fxe4 f3 b5 Be3 bxa4 Bc1 g4 Nd2 g3 Nc4 h5 Nh3 Qb6 Kd2 Rh6 Nf2 gxf2 g4 Rh8 g5 Qc7 Ne3 Qd8 Ng4 hxg4 Kc3 Kf7 Kd4 Ke6 h4 Kf5 Kd5 e5 c4 g3 b4 e3 g6 Kf4 c6 e4 c5 a3 b5 a2 b6 g2 g7 Kg3 b7 g1B c7 e2 c6 e1B h5 e3 h6 e2 h7 Nh6 Ba3 Ng4 Qd2 Bh2 Bh3 f1B Bb2 Na6 b8R Nc5 Rb6 Na4 Bf6 Ba6 c8Q Bb5 Rb8 Qa5 Qc7+ d6 Qd3 Bc3 Rd1 e1B Rc8 Bb2 Rd2 Be2 Bf1 Kf2 Ke6 d5 Kd7 d4 Qf4 Bc4 Qb1 d3 Rg1 Rg8 h8Q Rb8 Qc2 Rb4 Qh3 Bb5 Rd1 d2 Rg3 Bec4 Bd3 Nh6 Rg5 Ng4 Re5 Kg1 Be2 Kh1 Bf1 Qa6 Kc7 Qa5+ Kb7 Rh8 Rb1 d1R Qf2 Rd4 Rd1 Rb3 Bd3 Rc3 Bf1 Rc1 Rd2 Ra1 Rd1 Re4 Rdd8 Rd4 Bd3 Rg8 Qhf1+ Bg1 Q4g3 Be7 Q1e2 Be6 Bh7 Ba6+ Ka8 Bh2 Qf4 Re8 Bd3 Bf8 Qef1+ Bg1 Qh3+ Bh2 Be2 Bd3 Kb7 Bg8 Bd1 Bf1 Be2 Bd5 Ba6 Bb5 Qe2 Bg8 Qf2 Bgc4 Qhf1+
2nqq2Q/P1r3nQ/4b1b1/R1nBK1Pq/1p1pQ1Pb/1R2p1R1/4k3/B4r2 b - - 0 1 legal: proof: e4 e5 b4 c5 d4 cxd4 h4 g5 hxg5 f5 Qe2 a5 Nc3 axb4 Qd1 d3 Nf3 Qe7 Nd4 exd4 e5 Qd8 Ne4 fxe4 f4 e3 a4 b3 Rg1 Kf7 c4 Ne7 c5 Ke6 Qh5 Bg7 Qe8 d5 g3 Na6 Qb5 h5 Bb2 h4 a5 h3 c6 Kf5 c7 Ke4 e6 Kf3 Qb6 h2 Rc1 Be5 f5 h1N Qc5 b5 f6 b4 Bh3 d2+ Kf1 d3 f7 d4 Qc2 Rf8 Ba1 b2 Rb1 Ra7 g4 Bg3 Rg2 d1B Kg1 d2 Qg6 Bd7 c8R Bc2 Ra8 Nc8 e7 Rc7 e8Q Bf2+ Kh2 d1Q Qg8 Nc5 a6 Ng3 Rg1 Qe1 Bg2+ Ke2 Bd5 Nh5 Kh3 Ng7 Kg2 Kd3 Kf3 Qc1 Rg2 Qh1 Kf4 Ke2 Rgg1 Qh7 Qe7 Bh4 Rg3 Nf5 Qg6 Qh5 Qh7 Bd3 Qe5 Bc2 Qeh8 Ng7 Ra7 Bg6 Ra8 Re8 f8Q Re6 Qf5 Rf6 a7 Rf7 Rb8 Rf8 Rb5 Rf6 Rd1 b1Q Ra5 Qc2 Rdg1 Be6 Ke5 Qa4 Rb1 Qae8 Qe4 Rf1 Rb3
1bN2Nkn/1b2n1p1/3n4/P1r1r3/q1npRPn1/pN6/1P1Q2Rb/Q4K1R b - - 0 1 illegal: No proof kernel
1rbnQrR1/2Nn1pn1/2RQ1Q2/3K2bP/2n3qP/6P1/pb1Np2R/1n5k b - - 0 1 illegal: Other
R1nK4/P4b1Q/1NNn1R1r/1b6/1rP2p1Q/b1k1pQpP/1Nn2r2/q2r4 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 Bh6 axb4 Bc1 h5 gxh5 e5 f4 Nh6 e4 Na6 f5 Qb6 Bf4 exf4 e5 Ng8 e6 Nb8 e7 Qc7 Bc4 Qd8 Be6 fxe6 Kd2 Kf7 Ke2 Ra7 Ke1 Ra8 Kf2 Kf6 Kf3 Ke5 Kg4 b5 Kg5 d5 a4 d3 c4 Kd4 a5 b3 a6 b2 f6 d2 e8N b4 h3 e5 h6 b3 h7 e4 Qf3 d1B Kg6 e3 Kf7 g5 Rh2 g4 Qh1 g3 Na3 b1N Nc2+ Kc3 Qf3 d4 Ra3 d3 Qf2 d2 Qf3 Bd7 Nd6 Qa5 Nc8 Ne7 Nb4 Nf5 Nb6 Bb5 Nd3 Nd7 Nb2 Nd6+ Ke6 Be2 f7 d1R Ra1 Bd3 Rd2 Na3 Ra2 Be7 f8Q Bg6 Qh6 Nc2 Qh4 Rab8 a7 Rf1 Rd5 Rf2 Rg5 Bh5 Rg8 Rb7 Ra1 Qa2 Rd1 Qa1 Ra8 Bg6 Rd5 Be8 Rf5 Bg6 Nd3 b2 Rf6 b1R Nb2 Rd1 Ne2+ Kb4 N6a4 Nb6 Nd4 Nbc8 Nb6 Kc3 Nc6 Rb8 Kd7 Bf7 Kc7 Ba6 Nd7 Rb4 Nb6 Bb5 Kd7 Rg8 h8Q Rg6 Qg8 Rh6 Qh7 Ne4+ Kc7 Ra4 Nd4 Ba3 Kd8 Ned6 Nc6 Rb4 Qh8 Re1 Qg8 Rd1 Qh7
nbb2bQr/r1qB1B2/p1Pp1PK1/p7/Q7/1n1Q2R1/4pR1P/1q1r2Bk b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 f5 exf5 g5 a5 b6 f6 bxa5 f4 h6 g4 Ba6 f5 Bc8 Nh3 Ba6 Nc3 Bc8 Nf4 gxf4 Ne4 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Kf2 Kf7 c4 e5 b4 g3+ Kf3 g2 Kg4 g1B c5 d6 c6 f3 b5 e4 b6 a6 b7 f2 Bf4 d3 Qe2 d2 Qb5 d1R Be3 Nd7 b8Q Qc7 Bh3 f1Q Qd3 Nc5 Ra3 Ne7 Qb4 Nb3 Qa4 Ra7 Bc5 e3 g6+ Ke8 Kg5 e2 g7 Kf7 Bb6 Nd5 Bc5 Nb6 g8B+ Ke8 f7+ Ke7 Bd4 Na8 Kg6 Bf2 Rg1 Qe1 Rg4 Qb4 f6+ Ke6 Bb6 Ke5 Rg3 Kf4 Bd7 Be3 Rg2 Kf3 Rg3+ Kf2 Rg2+ Kf1 Rf2+ Kg1 Bd4 Kh1 Bb6 Be7 f8Q Bc5 Qg7 Bf8 Bf7 Bd4 Qg8 Be3 Qf5 Qe4 Bc5 Qb1 Qd3 Rb7 Bb4 Ba7 Bc5 Bb8 Rf1+ Kg2 Bg1 Ra7 Rf2+ Kh1 Qf5 Na1 Rg3 Nb3 Qd3
4RR2/4PP2/4rqpp/b1q1k3/rNnp3n/1K1R2NP/1pQ4Q/Qn2rb2 b - - 0 1 legal: proof: d4 b5 b4 c5 f4 g5 a4 cxb4 axb5 e5 Be3 exd4 Bd2 Bh6 Bc1 Bf8 g4 Be7 Bg2 Bc5 Be4 Qa5 Bg6 Qa2 f5 Bf8 Bf4 gxf4 g5 Qa3 Bh5 Qa5 g6 Qb6 g7 Qd8 Bg6 fxg6 Kd2 Kf7 c4 Kf6 Kc2 a5 e4 d5 c5 h6 c6 f3 c7 b3+ Kb2 f2 b6 f1N b7 a4 h3 d3 Qe1 a3+ Kc3 d4+ Kc4 b2 Nf3 a2 Qa5 d2 Nh2 d1R Kb3 Ne7 g8R Nd7 b8Q Ne5 Na3 Nc4 Nc2 Ba6 c8Q Re1 Rd1 a1Q Rd3 Qc1 Nb4 Ra7 Qa1 Nfd2+ Ka2 Qd6 Nf1 Nb1 Ng3 Ke5 f6 Nf5 f7 Nh4 Kb3 Re7 Rh2 Re6 Re2 Qg5 Qcc7 Qf6 Qc6 Be7 Rf8 Bd8 Qcc8 Ba5 Qbc7 Kf4 e5 Qc5 Qd6 Bb7 Qcc7 Bg2 Qdc6 Bf1 Qg2 Rd6 e6 Rg8 Qh2 Rh8 Rc2 Ke5 e7 Rg8 Qc6 Re6 Rc1 Rh8 Qcg2 Rg8 Qc2 Rh8 Ra8 Rc8 Rb8 Rc7 Re8 Ra7 Rd2 Qb5 Rf8 Ne3 Qc8 Bd8 Qc3 Ra4 Rd3 Ba5 Qcd2 Qb6 Rcc8 Nc4 Qc2 Qc5 Rce8
2RQ2b1/Q2P1k1r/1P2Pp1b/2q3n1/p1pbR1K1/p2QR3/rbB5/nn2B3 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 h5 g4 hxg4 a4 f5 e5 bxa4 f4 Bd7 Nf3 Rh5 Ng5 Nc6 Nh7 Rh3 Nc3 Bc8 Ne4 fxe4 f5 Nb8 f6 Kd7 f7 Rh6 Nf6+ exf6 Be2 Rh5 Bf1 Rh8 Kf2 Ke7 Kg3 c5 b4 a5 h4 g5 d4 a3 b5 e3 b6 e2 h5 e1N h6 Qc7 h7 Be6 Bf4 Bh6 f8R Nf3 Qe1 Na6 Qd2 Nb4 Qe1 Nd2 Qe2 Nb1 Qc4 Nc2 Ra2 Na1 Rc8 Kf7 d6 Ra7 d5 a4 Qd3 c4 d7 Qc5 Kg2 g3 Kf3 g2 d8Q g1B d6 Bd4 Rh3 Bb2 Bd2 g4+ Kg3 Re7 d7 Bd5 Kh4 g3 Be1 g2 Kg4 g1B Re3 Bf2 Re4 Bfd4 Be2 Bhe3 Bd1 Nh6+ Kh3 Rg8 h8Q Rg2 Bc2 Bbc1 Rc7 Ng4 Bd1 Ke6 Qc8 Bh6 Qa8 Rh7 Qa7 Nh2 Qd8 Nf3 Rae2 Ng5+ Kh4 Rf2 R2e3 Ra2 Rc8 Bcb2 Bc2 Qe7 Kg4 Qc5 Qg8+ Ke7 Qh8 Bf7 Qf8+ Ke6 Qd8 Bg8 Qdc7 Ke7 Qd8+ Kf7 e6+
3q2Qb/2p3Q1/1BnpB1p1/2p5/2RRrBpk/KP2P1Pr/1n1b2R1/3r3n b - - 0 1 illegal: No possible last move, all moves rejected
1R2n2b/1p1R3r/4QpP1/N3Qp2/P2bN1rp/1PprN1qp/4K3/nk2R3 b - - 0 1 legal: proof: c4 a5 g4 d5 h4 dxc4 f4 g5 f5 gxh4 g5 h3 g6 a4 b3 a3 Bb2 axb2 Bg2 f6 Be4 Be6 Bd5 Bf7 g7 Bg6 fxg6 e6 Be4 Bb4 Bd3 Bf8 Bf5 exf5 a4 Ke7 d4 Kd6 e4 c5 e5+ Kd5 e6 Ke4 e7 h5 e8Q+ Ne7 g8R h4 d5 c3 d6 c2 d7 c1B Qd6 c4 Qb6 Kd3 Qe6 Kc2 Qb6 c3 Kf2 Na6 Qd4 Nb4 Qf7 Ned5 Qe6 Qb8 d8N Rh7 Nd2 b1R Nc6 Bg7 Nc4 Qg3+ Ke2 Be3 Nb2 Bh8 Qde5 Rd8 Na5 Nc7 Nf3 Bd4 Re1 Ne8 Nd2 Rd1 Ne4 Rd3 Nd1 Rd6 Ra2+ Kb1 Rd2 Nc2 Rg7 Na1 Rd7 Rc6 Rd8 Rc4 Rb8 Bf2 Nd6 Rg4 Ne4 Rf3 Rd4 Rd3 Rd7 Bd4 Ne3+
5R2/1Qbn1r2/B4p2/2kR1rqn/K2p2b1/1RBP1Pqq/1r2n1P1/Q1b1n1Q1 b - - 0 1 legal: proof: h4 b5 b4 g5 a4 e5 d3 c6 Kd2 e4 Ke3 gxh4 Nd2 Na6 Kf4 e3 Kg4 exd2 Kh3 Nb8 Kh2 Ke7 Nf3 Ke8 Nd4 bxa4 Kg1 c5 b5 Ke7 Nc6+ Ke8 Nb4 cxb4 e4 Ke7 c4 Kd6 f3 h5 Kf2 a5 Ke2 h3 e5+ Kc5 e6 d5 b6 a3 b7 h2 e7 a4 e8R d4 Re4 a2 Re8 b3 Rg1 h1N Re6 b2 Re8 b1R Qc2 a3 Kd1 h4 Re6 h3 Be2 h2 Re8 Nf6 Qb2 Ng3 Kc2 h1Q Kb3 Nfh5 Bd1 Bg4 Re6 Ra7 Rd6 Qh3 Rf1 Nd7 b8Q Ne2 Qb7 Qg5 Bc2 d1Q Bd2 f6 Bc3 Ra5 Re1 Rb5+ Ka4 Rh7 Bb3 Rf7 Qc1 Rb2 Rb1 a1N Qa6 Nef4 Re8 a2 Qb7 Qd2 Qg1 Qe1 Rb8 Be7 Rf8 Nc2 Qa6 a1B Qa8 Rb6 Ba2 R2b5 Rb3 Qeg3 Qa7 Ne1 Qa8 Bd8 Qa6 Rc6 Qa8 Kb6 c5+ Kc7 Ba5+ Nb6+ Ka3 Qf2 Rb1 Ne2 Bc4 Qfg3 Bb4 Bc3 Rb3 Nd7 Qa4 Ra6 c6 Bd2 Bc3 Rf5 Bb5 Kb6 c7+ Kc5 c8Q+ Bc7 Qb7 Ra5 Ba6 Bf4 Rbb6 Be3 Kb3 Bd2 Qa1 Rb5+ Ka4 Rb2 Rb3 Bc1 Rd5+
Q1q1nQ2/1k1r4/1p2p3/QP1rPqnq/b2R3R/b2q1rNr/2q4P/N1N1K3 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 b5 h5 g5 h4 g6 h3 Bg2 hxg2 Bg5 fxg6 Be3 g5 Bd2 g4 Bb4 axb4 e4 g5 a4 d5 f4 Kd7 c4 Kc7 a5 d3 a6 b6 f5 b3 e5 b2 f6 d2+ Kf2 g3+ Ke2 g4 a7 d4 c5 d3+ Ke3 Rh3 c6 Nh6 f7 Bf5 Qf3 d1R Ra6 d2 Ke2 e6 Ra5 Ba3 f8Q Na6 Qf6 Nf7 Qg6 Ng5 Qf6 Qc8 Qf1 Bc2 Q6f4 Ba4 Nc3 b1Q Q4f3 Qc2 Qf6 Rb8 Q1f3 Rb7 Na2 Rf1 Qc3 d1R+ Qd2 Rf3 Nb4 Qf5 Qc3 Rd5 Ke1 Qc2 Ne2 Qd3 Rf1 g1Q Nc2 g2 Qh8 g3 Nc1 Qc5 Na1 g1Q Qf8 g2 Qb4 Qgd4 Rf2 Qdc2 Rd2 Qdd3 Qc3 Qf5 Rd4 Qc4 Rh4 Qcg4 Qd2 Qh5 Rd4 Bb3 Raa4 Qfd3 Rac4 Ba4 Rh4 Qf5 Rcd4 g1Q+ Ke2 Qg2+ Ke1 Qcd3 Qc3 Qd8 Qa5 Kc8 c7 Qgc2 Qh6 Nc5 Qf8 Nd7 Rdf4 Nf6 Rd4 Kd7 c8N Kc7 Nd6 Ne8 Ne4 Kc8 Qh8 Rbd7 Ng3 Kb7 Qf8 Qdc8 a8Q+
rb4QQ/2b1N3/qN1b1rq1/R1np1n1Q/3p1p1b/3P1Pkb/1P3r2/3NKR2 b - - 0 1 illegal: No proof kernel
R2bqB1Q/Bbr3pP/4p1Pp/1n1rn3/3pB3/1kqr3Q/3RPr2/2Rb2K1 b - - 0 1 illegal: No proof kernel
2r2R1Q/p2pq3/1b1n3p/1b1K4/1Nn2Q1P/q1RPP3/Nq1rrp1Q/k2R2r1 b - - 0 1 legal: proof: f4 c5 b4 b5 a4 bxa4 b5 g5 e3 gxf4 Bd3 e5 Be2 e4 Bf3 exf3 Ba3 Bh6 Bb4 cxb4 Qe2 Bg7 Qd1 Bf8 Kf2 Ke7 g4 Ke6 c4 f5 c5 Kd5 b6 Kc4 h3 a3 c6 a2 g5 b3 b7 b2 g6 Qe7 c7 Nc6 b8Q Ba6 c8R Bb5 g7 Nf6 Qe1 Kb3 d3 Na5 g8Q+ Nc4 Qg3 Ne4+ Kf1 f2 Kg2 f1R Qf3 Ned6 Qfe2 f3+ Kg3 f4+ Kg4 f2 Q1d2 f3 Kf4 Rd1 Nc3 b1Q Qf1 Qb2 Rc1 a1Q Nge2 Qaa3 Nd5 Ka2 Rc3 Ka1 Nc1 h6 h4 Rg8 Qc2 Rd2 Nb4 Rg1 Re8 Bg7 Rf8 Bd4 Qe8 Rc8 Qd8 Qh7 Qf6 Bb6 Qh8 Na5 Ke5 Qe7+ Kd5 Nac4 Qh3 f1R Qg4 Rfd1 Qf4 Rh2 Qf2 Rd2 Q2g3 Rhe2 Qh2 Rg6 Rg1 f2 Rd1 Rg1 Nca2+
k1qNr1r1/2qpq1QP/2pBNp1N/2P1QBp1/6b1/1Bb2rp1/2Kn2P1/6n1 b - - 0 1 illegal: No proof kernel
1Q6/2Nqk3/pK6/r1rPn2r/2p2P2/q4R1p/BpP2b1n/qB1Q1B1B b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 hxg5 fxe4 a4 d5 Ra3 d4 Re3 dxe3 b5 Nf6 b6 Nd5 Nc3 Qd7 Ba3 Qh3 Bb4 axb4 a5 Nf6 a6 Qf5 a7 Qd7 Na4 Qd8 Nc5 Ng8 Na6 bxa6 b7 Nc6 bxc8B Rb8 Be6 Rb5 Bd5 Nb8 Ba8 Rb7 Ke2 c5 f4 h5 d4 e5 g4 h4 g6 b3 g5 h3 g7 c4 g6 b2 Nf3 Ke7 Ng5 Qd7 Ne6 Rh5 Nc7 Rb5 Bc6 Rc5 a8B Nf6 g8B Ng4 g7 Nh2 Ba4 Nc6 Bd5 Ra5 g8Q Rc5 Ke1 e2 Kd2 e1R Kc3 e3 Bb3 e4 Ba2 e2 Bb1 Ne5 Kb4 e3 Bdc6 Bg7 Bb5 Bf6 Ka5 Bh4 Kb6 Bf2 Ba4 Ra5 Bfg2 Rg1 Bae4 e1Q Bf1 e2 Qb8 Rgg5 Bb3 Qc3 B3a2 e1Q Rg1 Qa3 Rg3 Nc6 Rf3 Rgc5 d5 Ne5 Bb3 Qa1 B3a2 Qe3 Rg3 Qc3 Bh1 Qa3 Rf3
1nQ1q1k1/K2b1R1r/3n2b1/pP6/p2Qp2Q/n1b2PRP/1QBp4/3N2n1 b - - 0 1 legal: proof: b4 b5 c4 a5 d4 f5 a4 bxa4 e4 c5 exf5 cxd4 b5 Ra7 b6 Rc7 Nd2 Rc6 Nb1 Rc5 f3 g5 Be3 g4 Bf2 Rb5 cxb5 g3 Nd2 h6 Ne4 gxf2+ Kd2 Na6 g4 Nb8 g5 h5 Nf6+ Kf7 Ng4 hxg4 Qc1 Ke8 Qc2 Rh7 Qd1 Rh8 Kd3 Kf7 Kc4 e5 f6 g3 b7 d3 Nh3 d2 Bd3 f1N Nf2 g2 Bc2 Bg7 Kc5 Ne7 g6+ Kg8 h3 g1N Rc1 Qe8 Kb6 d5 Ka7 d4 f7+ Kf8 Rh2 d3 Rg2 Rh7 Rg3 Bd7 Qe2 e4 Nd1 Bc3 Qh2 Nf5 g7+ Ke7 g8Q N1e3 Qg2 Nc4 Qg7 Nfd6 Qd4 Na3 f8Q+ Ke6 Qh6+ Kf7 Qh4 Kf8 Nb2 d1B Qgf2 Be2 Nd1 d2 Qdf6+ Qf7 Q2d4 Bc4 Qfe5 Qe8 Qh8+ Bg8 Qhe5 Na6 b8Q Bf7 Qc8 Nb8 Qef6 Bb4 Qb2 Bc3 Qd4 Bg6 Bd3 Bb4 Rc7 Kg8 Bc2 Bc3 Rb7 Bf5 Re7 Bd7 Rf7
n3bK2/r1P1BRRk/q6n/P1q3b1/1bPb4/r2nr2q/3N1Q2/Q1Rq3R b - - 0 1 illegal: No possible last move, all moves rejected
RKQRr2N/1RB5/P2RP3/6b1/k1QP1r2/1b1nn3/4nq2/rb1br1nn b - - 0 1 legal: proof: g4 g5 b4 h5 c4 e5 f4 d5 cxd5 a5 Bg2 axb4 Nh3 gxf4 g5 Nh6 Bf3 Ng8 Bg4 hxg4 Nc3 Nd7 Ng1 Nb8 Nb5 e4 Nd4 Ke7 Ndf3 exf3 Ba3 Kd7 Bc1 Ke8 Kf2 Kd7 a4 b5 d4 c5 h4 f5 e4 b3 g6 g3+ Kf1 f2 Ke2 f1B+ Kf3 g2 h5 b2 h6 b1B h7 c4 e5 b4 g7 b3 d6 Kc6 a5 Kb5 d7 b2 Qe1 c3 Qe3 c2 Qf2 Nf6 g8R Ng4 Qh4 Ne3 Qe1 Qf6 d8Q Nc6 Qe7 Be2+ Kf2 f3 Kg3 f2 Kf4 f1N Ra3 Bd1 Nh3 g1N Qd8 Be7 Qc3 Nb4 Rg7 Ng3 Ng5 Be6 Nf7 Re8 h8R Bb3 R1h6 Nh1 Qdc8 Ra7 Bd2 c1N Rhg8 Bd8 Nh8 Rae7 Rgh7 Qf7 Rd6 Nce2+ Kg5 f4 e6 f3 Be1 Nd3 Bg3 f2 Bh2 Qh5+ Kf6 f1R+ Bf4 Qf3 Ra2 Nc5 Ke5 Rf7 Bh2 Rf4 Rb7+ Bb6 Ra4 Qf2 Ra1 Re1 Ra2 Re7 Rgd8 Re8 Ra3 Nc4+ Kd5 Nd3 Qc1 Kb4 Kc6 Ne3 Ra1 B3a2 Qc3+ Ka4 Qc1 Bc5 Kc7 Bb4 Kb8 Bc5 R6d7 Be7 Rd6 Bg5 Q1c5 Bbc2 Qd5 b1R Bg3 Rb5 Bh2 Bb3 Qdc4+ Rb4 Rc1 Bb1 a6 Ka5 Rc2 Ra4 Rb2 Ra2 Ra7 Ra1 Ra8 B3c2 Rb7 Bb3 Rdb6 Rf7 Bc7 Rf4 Qd5+ Ka4 Rbd6 Nf5 Qc5 Ne3 Qc4+
Q1q1RN2/1B4Kb/6RP/n1p5/q3Q2n/4PrPk/2n1Rrrr/1b1rb1R1 b - - 0 1 legal: proof: f4 e5 c4 exf4 c5 g5 c6 g4 b3 b5 a4 g3 axb5 dxc6 Ra2 c5 Ra1 c4 Bb2 h5 Bd4 h4 Bf2 Ba3 Qc2 Bc5 Kd1 Bf8 Kc1 Qd3 Qd1 Qd8 Nc3 gxf2 Ne4 Bf5 Ng3 Be6 Nf5 Bc8 g3 h3 Ne3 Bf5 Ng2 hxg2 Ra2 Bd7 Ra1 Bc8 Kb2 Ke7 Kc3 Kf6 h4 Kf5 d4 Kg4 b4 a5 e3+ f3 d5 f5 Kd4 c3 Ke5 c2 d6 c1Q d7 a4 h5 f4 b6 a3 b5 a2 b7 Qc2 b6 Nh6 Qd6 Nc6+ Ke6 Nf5 Kf7 Na5 b8R Qa4 b7 Nh4 Nh3 g1R Bd3 f1B Be4 f2 Bd5 f3 Nf4 Rg2 Qc6 Bd3 Rab1 f1R Rh2 a1N Rc1 f2 Qc2 Bh7 Bc6 Bb4 Ne6 Rd1 Nf8 f1R+ Kg7 Be1 Qe4+ Rf4 Bd5 c5 h6 Nc2 Bc6 Qe8 d8Q Bcf5 Qdd5 Qc8 Rb1 Ra7 Ra8 Ra6 b8R Rb6 Rb7 Rb2 Rb6 Bfg6 Bb7 Bf5 Ng6 Rf8 Re6 Rf6 Nf8 Ra2 Raa6 Bfg6 Re8 Rb2 Qee5 Rff2 Qb8 R6f3 Qa8 Rg1 Rg2 Kh3 Qe4 Rh1 Rg1 Rhh2 Rf6 Bf5 Rg6 Na1 Rg4 Rfe2 Qd5 Reg2 Rg6 Rbf2 Rb2 Bb1 Re2 Nc2 Qe4
3rn3/N3P1kb/1R2b1qq/4qN2/B1Q2pqr/q3PN1P/5Q1b/N1nnK3 b - - 0 1 legal: proof: b4 a5 g4 axb4 d4 c5 a4 cxd4 f4 e5 fxe5 g5 Bf4 h6 Ra3 Ra5 Rg3 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 c4 f5 g7 Kf7 a5 d5 c5 b5 c6 g4 e3 f3 a6 d3 c7 d4 h3 g3 a7 g2 Qa4 f2+ Kd2 b3 Qa3 b2 Ne2 g1Q Qa2+ Be6 c8Q b4 Nf4 b3 Nh5 Nf6 g8N Qg5 Qa5 Qe8 Ng7 Bd6 Kd1 d2 Qb4 Rh4 Qcc5 Nc6 Ne7 Qh6 Bg2 Rd8 a8N Na5 Ke2 d1N Nd2 b1B Qcc4 b2 Nd5 Nb3 Nac7 d3+ Kf1 Bc2 Nf3 b1Q Nb5 d2 Na7 Nc1 Qb2 Qa2 Rh2 Qa3 Nb4 Qb5 Bh1 Ne8 Qa2 Bb1 Nc2 Kg8 Na1 Qbc5 Kg2 f1Q+ Kg3 Qe1+ Kg2 Qg3+ Kf1 Qgg6 Rg2 Bd5 e6 Bh2 e7 f4 Nf5 Be6 Rg1 Qe5 Rg5 Qgg7 Rg6 Kh8 Rf6 Qgg6 Bg2 Bg8 Rb6 Be6 Qe2 Kg8 Qac4 Bc2 Qf2 Be4 N5d4 Kg7 Nf5+ Kf7 Ng3 Qgg5 Nd4 Nb2 Rb4 Bh7 Bc6 Qgg6 Ba4 Kg7 Rb6 d1Q+ Qe1 Kf6 Ngf5 Qdg4 Qf2 Nd1 Ke1 Kf7 Nf3 Kf6 N5d4 Kg7 Nf5+
rn1R4/r1qq3B/2q4b/1Pnr1bkP/2N1Q2n/1N3NpQ/2KNb1P1/q7 b - - 0 1 legal: proof: d4 e5 b4 c5 f4 exf4 a3 cxd4 Ra2 g5 Rb2 b6 Rb3 b5 a4 h6 Rg3 f3 Bf4 gxf4 Rg5 hxg5 axb5 Qf6 Kd2 Qb6 Ke1 Qd8 Kd2 Ke7 c4 Kf6 e4 d5 h4 a5 h5 a4 b6 d3 b7 g4 b5 a3 e5+ Kg5 c5 f5 c6 a2 e6 a1Q c7 d4 e7 f2 e8Q g3 Qc6 f3 Qd7 f4 Ne2 Bh6 Qb3 Ne7 Rg1 Ng6 Nec3 Ra7 Qh7 Bf5 c8N Qc7 Qd7 Nh4 Kc1 d2+ Kd1 Rd8 Bc4 f1N Qa2 f2 Na4 f3 Bd3 Qac3 Be4 Q3c6 Qc4 Rg8 Kc2 d1R Qe6 Nd2 Nd6 f1Q Nc5 Nb3 Nd2 f2 Qcd5 Qe1 N6c4 f1B Bd3 Qee5 Qe4 Be2 Rf1 Rd8 Rh1 Rda1 Rd1 Rd5 Qd7 Ra8 Qc8 R1a7 Qe6 Na6 b8N Qf6 Nbd7 Nb8 Nde5 Qh8 Nb7 Nc5 Nba5 Qhe8 Nab3 Qed7 Qf3 Bg6 Qh3 Bf5 Be4 d3+ Kc3 Be6 Bh7 Bg4 Qe4 Bf5 Nf1 d2 Nf3+ Kf6 Ra1 d1Q N1d2 Qe1 Ra6 Qa1+ Kc2 Qce6 Rd6 Qdc6 Rd8 Qed7 Ng1 Kg5 Ngf3+
1qn1BN2/p3q3/1B3P1q/2Qb1K2/1B1b2QP/2nr3n/P1k3B1/nrb3Rr b - - 0 1 legal: proof: e4 c5 c4 f5 f4 fxe4 f5 g5 b4 d5 bxc5 dxc4 g4 Bg7 Nc3 Bf8 Nd5 h6 Nf4 gxf4 g5 h5 Rb1 Qd5 Rb3 Qd4 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 d4 Kc6 h3 Kb5 g6 Kb4 d5 Kc3 d6 e5 f6 b5 g7 g3+ Ke2 f3+ Ke3 f2 d7 g2 c6 b4 c7 b3 Nf3 g1N Ne1 b2 Rh2 b1N Qf3 Ne7 g8B Na6 Qf4 Nc5 Qg5 Bb7 c8Q Bd5 Qb8 Nb3 Rh1 Na1 Qb7 Nc8 Be2 f1R Nc2 Bc5+ Nd4 Qc7 d8B Qb8 Qbg7 Rd1 Bf3 Rd3+ Kf2 e3+ Kg3 e2 Kg4 e1Q Be6 e4 Nb3 e3 Qg8 e2 Bf5 Kc2 Bd2 c3 Bg2 Qc1 Bd7 e1Q Kf5 Bd4 Be8 Qe7 Nc5 Rh7 Qg4 Rh4 Be1 Qh6 Nd7 Bc5 Be4 Kb2 Bc7 c2 Qd1 c1B Bd2 Qb3 Nf8 Rb8 Qgg4 Qb4 Qde2 Kc2 Qe3 Qb3 Bda5 Nc3 Bg2 Rb7 Qed4 Rb8 Qb4 Bd4 Qc5 Qb6 Bd8 Qbd6 Bdc7 Rb1 Bcb6 Qdc7 Bb4 Qb8 Qf3 Re4 h4 Re1 Qg4 Nh3 Rf1 Red1 Rf3 Rg1 Rf1 Rh1 Rg1
nrrQq2R/B5Qr/N3P1Q1/3K2Q1/kb3q1P/q2bq1pq/3N1qP1/5n2 b - - 0 1 legal: proof: b4 e5 f4 exf4 d4 c5 a3 cxd4 e3 g5 Be2 g4 Bf3 b5 a4 h6 axb5 h5 Ra6 gxf3 Rg6 Rh6 Rg7 Rh8 Rg4 hxg4 Kf2 a5 h4 f5 c4 d5 e4 Kd7 c5 g3+ Kf1 a4 b6 Kc6 b7 Kb5 c6 a3 c7 f2 Ke2 f1R Kd3 f3 e5 f2 e6 a2 Qg4 a1Q Ne2 f4 Qg5 f3 Ba3 Ka4 b5 Na6 b8Q Nh6 b6 Rc1 b7 f1Q Qa7 f2 b8Q Ng4 Qab6 Rh7 Qb2 Ne3 Qe5 Qe8 Qg5 Bb4 Qa7 Rb8 Rh3 Rc3+ Kd2 d3 Qb7 d4 Qa2 Bd7 c8Q Nc7 Nf4 Bb5 Qcd8 Na8 Qb2 Rcc8+ Qc3 Qh1 Qbg7 f1Q Nd5 Qf4 Nc7 Qh2 Bb2 Qa3 Na6 Bc4 Q7g6 Nf1+ Kd1 d2 Kc2 Qg1 Rh1 Qge3 Bc1 Bb5 Qcc7 Bc4 Qcg7 Qef2 Rg1 Qae3 Kb2 d1Q+ Nd2 d3 Rh1 Qdf3 Rg1 Bd6+ Kc3 Q3g4 Ba3 Qh3 Bc5 Be7 Ba7 Bb4+ Kb2 Nh2 Rc1 Nf1 Rc2 Bb5 Nc4 d2 Rc1 d1Q+ Nd2 Bf8 Rc5 Bd3+ Kc3 Qdf3 Rc7 Be4+ Kc4 Bb4 Rc6 Qa3 Rc7 Qf3e3 Rc5 Bc2+ Kd5 Bd3 Rc7 Qg1 Rf7 Qgf2 Rf8 Qee1 Rg8 Qee3 Rh8
r2R1b2/2B2b1P/p1b2nkr/KB1n2B1/3P1q2/P5BQ/3n1b2/1rQr1Nb1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 f5 gxf5 b5 Qc2 bxc4 Qa4+ Bd7 Qd1 Bc8 b4 h5 Nc3 Qd5 Na4 Kd7 Nc5+ Ke8 Rb1 Qd4 Nd7 Qd3 Rb3 cxb3 Ne5 Qd8 Ng4 hxg4 h4 Kf7 f4 g5 d4 e5 Kd2 c5 Kc3 e3 f6 b2 a3 b1B f5 e4 h5 c4 h6 e2 b5 e1N b6 a6 b7 g3 Bg2 e3 Rh5 g4 Qa4 e2 Qc2 Ne7 Kb4 c3 Bf4 Ba2 Be3 Qd6+ Ka4 Nd5 Ka5 Qf4 Bf1 g2 Qc1 c2 Nf3 g1B Nh2 Nd7 b8B g3 Bc7 g2 Rg5 Bb3 Rg8 Bb7 Bf2 Bc6 Bg3 Nf3 h7 e1R Bd3 Re6 Nf1 Bf2 Be2 g1B Bb5 Bh6 Rd8 Nd2 Qd1 c1R Qg4 Rhe8 Qh3 Kf8 f7 Kg7 f6+ Kg6 f8Q Rb1 f7 N7f6 Qc5 Bf8 Qc1 Re1 Bd6 Rd1 Bb8 Re6 Bc7 Bh6 f8B Rd6 Be7 Bf8 Rd7 Nh5 Bg5 Nb6 Bb8 Rd5 Ra7 Nf6 B5h4 Rh5 Bg5 Bf7 Rd7 Nbd5 Rd8 Rh6 Bc7
k7/B1pRQ1Q1/2r3r1/bP2q1Qn/b1r2b2/1Q1r1B1P/3nN2P/b1b1n2K b - - 0 1 legal: proof: b4 b5 d4 d5 c4 dxc4 a4 bxa4 e4 h5 d5 e5 Ra3 h4 Rd3 h3 gxh3 f6 Rd4 exd4 e5 f5 Nc3 Bd7 Ne4 fxe4 Be2 Be6 Bf1 Bc8 f4 Kd7 Kf2 a5 Kg2 g5 f5 g4 f6 e3 f7 g3 d6 Kc6 e6 Kb7 d7 d3 e7 e2 e8Q c3 Qe7 a3 Qf6 d2 Qf3+ Nc6 Qf2 a2 Qf5 a1B Qh5 c2 Qg5 a4 Qe7 a3 Bb2 c1B Qd6 a2 Qb3 d1R Qe5 Nf6 Qa3 Rh6 Qf3 Qe8 d8Q Bd7 Qef5 Qe5 Bd4 Bd6 f8Q Nh5 Qd5 Ra4 Qb3 Na5 Bc3 Nc4 Qg6 Rd3 Qgf5 Nd2 Bd4 Bc3 Qg7 a1B Qh4 Ka8 Qhe7 Rg6 Bf2 Ra6 Be3 Ba4 b5 Ba5 Ba7 Rc6 Qfg5 Rc4 Nf3 Re6 Nd4 e1N+ Kg1 g2 Be2 Rg6 Bf3+ Rc6 Kf2 g1R Ne2 Rg4 Rg1 Ng2 Rd1 Rc4 Kg1 Ne1 Kh1 Qd4 Qh7 Bf4 Qhf7 Qe5 Qg7 Nc2 Rg1 Ne1 Rg4 Be3 Rd4 Bf4 Rd7
2bN2b1/Rn2PQb1/r4P1N/5bn1/2q1b1Q1/1P2Q2B/p1rQ2bk/1n1nK3 b - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 g5 d4 cxd4 Bf4 gxh4 Ra4 d3 Rd4 exd4 e5 f6 e6 Be7 Bc7 Bf8 Be5 fxe5 g4 Ke7 f4 Kd6 c4 h5 g5 a5 f5 e4 f6 Ke5 g6 Kf4 g7 Kg3 e7 d5 b6 a4 b7 d2+ Ke2 a3 c5 h3 c6 d3+ Ke3 h4 c7 a2 Qa4 d1B Kd2 e3+ Ke1 h2 Qd7 h3 Qe6 e2 Bg2 d4 Qf7 Na6 b8Q Bb3 Kd2 e1N Nc3 Nh6 g8Q+ Bg7 Qb7 Nc2 Qfe8 Nc5 Qbb5 Qd5 Qgf7 Ra6 Qe6 Na3 Qb7 Qc4 Qe2 Nb1+ Ke1 Nf7 Qb4 Nb7 Na4 Ng5 Qf7 Bf5 Nc5 Rc8 Nf3 d2+ Kf1 d1N Ne5 d3 Ng4 d2 Ne6 Qc1 Rg1 h1B Nd8 h2 Nh6 Bbe6 b3 Qc4 Be4+ Kh3 Rg4 Bf3 Qb6 h1B Qe3 Bd5 Q2d3 Kh2 Rf4 B3g4 Bg2 Bfe4 Bh3 Bgf5 Rg4 Bhg2+ Ke2 Ndc3+ Kf2 d1B Qdd2 Bdc2 Rf4 Nd1+ Ke1 Bde6 Rg4 Bh7 Rf4 Bg8 Rg4 B4f5 Rd4 Bce4 Rd7 Rca8 c8Q Rb8 Qcc5 Rc8 Qcb4 Rcc6 Rc7 Bc8 Rd7 Qd3 Rc7 Rc2 Qbd4 Qc4 Qd7 Nd6 Ra7 Nb7 Q7d4 Bf3 Qh4 B3e4 Qg4
K3bQ2/8/P3k1q1/RQbQr2q/p3n1qp/2nn1bPN/1B1P2Br/1Q3n2 b - - 0 1 legal: proof: b4 a5 h4 d5 f4 g5 a4 gxh4 c4 e5 cxd5 exf4 Na3 b6 Rb1 Kd7 b5 Ke8 Rb4 Qd6 Nc4 axb4 a5 Qf6 a6 Qd8 Na5 bxa5 Kf2 Kd7 Kf3 h5 Ke4 c5 g3 f5+ Ke5 a4 e4 h3 b6 h2 b7 b3 d6 b2 Kd5 b1N e5 f3 Qe1 c4 Qd1 f4 Bd3 c3 Bg6 f2 Bc2 f1Q Bb3 c2 Qe2 f3 Bb2 c1Q Ba3 f2 Ba2 Nc3+ Kc5 Qg5 Kb6 Qb1+ Bb3 Qg4 Qb5+ Nc6 b8Q Qfh3 Nf3 f1N Bb2 Qbg6 Ng5 Nf6 Bd5 Bb7 Bg2 Nfe4 Qd5 Nb4 Qb5+ Bc6 Qd5 Bb5 Kb7 Qhh4 Nh3 Be7 Qf8 Re8 Qb3 Nd3 e6+ Kd8 d7 Bc5 Ka8 Rh7 Rg1 h1B e7+ Kc7+ d8Q+ Kc6 Qb8 Kd7 Qa2 Qhg5 Qb1 Ke6 Qf3 h4 Qf8 Q5h5 Qf3 Rf8 e8Q+ Re7 Qb7 Rf5 Qf8 Be8 Qb5 Re5 Q3f5+ Kd5 Qg5 Rf7 Qd8+ Ke6 Qg5 Rf2 Qd8 Ne3 Rf1 Re2 Rf5 Nf1 Bf3 Rh2 Bg2 Ne3 Bf1 Bf3 Bg2 Nf1 Rg5 Bf7 Qd5+ Kf6 Qc2 Bb4 Qdd7 Re6 Qb6 Be7 Rb5 Bc5 Ra5 Kf5 Qd4 Re5 Qb5 Ke6 Qb1 Be8 Qd5+
Q2Q4/Pqb1r1n1/Q1p4n/3n1r2/N3P1b1/nq1pP1RQ/1kr2bKR/6B1 b - - 0 1 legal: proof: g4 e5 d4 a5 b4 axb4 d5 h5 f3 e4 fxe4 hxg4 Bb2 c6 Ba3 Rh6 Bc1 Rh8 c4 Be7 c5 Rh5 e3 Bf8 Nc3 Ra7 d6 Rh8 Nd5 Ra6 Bb5 cxd5 c6 Ra3 c7 Ra8 Bc6 dxc6 Kf1 Kd7 h4 g5 a4 f5 a5 b5 a6 b3 a7 g3 h5 g4 h6 g2+ Kf2 f4 h7 g3+ Kf3 b4 Ba3 b2 Rh3 b1N Bc1 b3 Qe2 b2 Rh5 d4 Rg5 d3 Ra4 Na6 Qc2 Na3 Rg7+ Qe7 Rg4 b1Q Nh3 g1R Qa2 g2 Qb2 Nh6 Qd4 Nb4 Qe5 Rf1+ Nf2 g1B Qa1 Qb3 Rg3 Nd5 Kg2 f3+ Kh1 Ke6 d7 Kd6 d8Q+ Kc5 Ra5+ Kc4 Ng4 f2 Qa2 Kc3 Nf6 Bg4 c8Q Qeb7 Nd7 Bd6 Nc5 Bc7 Kg2 Rb8 Ra4 Re8 h8Q+ Re5 Qhe8 Re7 Bb2+ Kc2 Ra6 Rc1 Qf8 f1N Na4 Bf2 Qa1 Ra8 Be5 Rb8 Bf4 Ra8 Qah8 Kb1 Qfe8 Rc2 Qh5 Kc1 Qh3 Rb8 Rf3 Ra8 Bh2 Ng3 Bg1 Nh5 Rg3 Ng7 Ra5 Nf6 Rh5 Nd5 Nc3 Kb2 Qhe8 Q7b4 Qa6 Rb8 Qg8 Rb5 Qa8 Rc5 Qgd8 Qb7 Qh1 Nf6 Rh2 Rf5 Na4+ Kc1 Kf1 Nd5 Qg2 Kb1 Qh3 Ka1 Kg2 Ka2 Nc3+ Kb2 Na4+
nbn1N3/1r2k2b/p1p4K/QPN3BP/R1P2q2/2pQ1qQ1/Q6b/1q3r1n b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 Ra2 hxg4 Ra3 Qf6 Ra1 Qd8 c4 d5 b4 d4 e3 f3 Kf2 Nf6 Ra3 Ng8 Be2 fxe2 Rc3 dxc3 Kg3 e1Q+ Kf4 g5+ Ke5 f5 d4 f4 h4 f3 b6 f2 d5 f1Q e4 c6 d6 a6 b5 g3 b7 g4 h5 g2 d7+ Ke7 Qa4 g3 Qa5 Qf3 Nd2 Ra7 Ne2 g1B Nf4 g2 Kf5 Bh2 Kg6 g1N e5 Qc7 e6 Nh3 Ne4 Nf2 Nd3 Qcf4 Ndc5 Bg7 Be3 Be5 Nf6 Qb1+ Kg7 Rh6 Rc1 Nh1 Qa2 Kd6 d8Q+ Nd7 Qda5 Ke7 b8Q Rb7 Rg1 Nb6 Rf1 Q4g4+ Bg5 Na8 Rf2 Qgf4 Rb2 Qbe4 Rb4 Qb1 Ra4 Bd7 Qc8 Bb8 Qcc7 Rh8 Qe5 Be8 Qe1 Bg6 Qg3 Kd6+ e7 Bh7 Ncd7 Ke6 e8Q+ Ne7 Qed8 Nc8 Kh6 Rf8 Nc5+ Kf7 Qd1 Ke7 Qdc2 Rd8 Qf5 Rd1 Qd3 Rf1 Ne8+
q1rBr3/q1Pb1r1P/p1bPp1B1/1n1B1nB1/4Q1k1/1Knp4/RQ2N3/b7 b - - 0 1 legal: proof: f4 b5 b4 h5 a4 c5 e4 e6 g4 hxg4 d4 Ke7 d5 Ke8 Nd2 Ke7 Ndf3 Ke8 Nd4 cxd4 axb5 Ke7 e5 Ke8 f5 exf5 e6 f4 e7 Rh7 Ra6 Rh8 Re6 dxe6 Bb2 Kd7 Ba3 Na6 Bc1 Nb8 Kd2 g5 e8B+ Ke7 c4 Kf6 Kc2 Kf5 h4 d3+ Kb3 f3 d6 a6 h5 f2 b6 g3 c5 g2 b5 g4 h6 g3 c6 Ne7 c7 Nbc6 h7 Bd7 b7 Bg7 b8Q Ba1 b6 Na7 b7 Nb5 Qd2 Kg4 Ne2 g1N Kc4 f5 Kb3 f4 Qa7 g2 b8B f3 Qb2 Nf5 Nf4 Ne2 Rh2 g1Q Bg2 f1B Bg6 f2 Bd5 Bg2 Qb7 f1R Ba7 Nec3 Bf2 Rc8 Bh4 Qa7 Ne2 Re8 Bcg5 Be4 Bc4 Bec6 Bd5 Qf6 Rf2 Qfd4 Bd8 Qa8 Bhg5 Qda7 Rf4+ Kh3 Ra4 Rf2 Ra2 Kg4 Qd2 Nh4 Qb2 Rf7 Qb6 Nf5 Qd4+ Ne4 Qe5 Nec3 Qe4+
1Q2B1rr/b3NN2/p1P2P2/1nQ2n2/2brpK2/5P1r/qrp1bQ2/2k3RQ b - - 0 1 illegal: No possible last move, all moves rejected
N3bnKn/Q5b1/4n1Pr/1NnN1pBp/1kPPN2b/2q3q1/1p4Q1/4Rr2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 a4 e5 Ra2 exf4 Rb2 c4 c3 d5 e3 d4 Rb3 cxb3 Bc4 b2 Bb3 d3 Bc2 dxc2 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 g4 h5 c4 f5 e4 b3 d4+ Kb4 a5 f3 a6 f2 a7 f1N g6 Rh6 g5 Nd7+ Ke6 Ne3 Kf7 Nd5 g7 Qc7 g6 Nf4 e5 Ne6 Nd2 b1N Rh2 b2 Rg2 Nc3 Qe2 b1Q Qe1 Qb3 Qe2 Ne4 Rf2 N4c5 Ne4 Qc3 Bg5 c1B Nh3 Be7 Qc2 Ndf8 Nf4 Bd7 Rf1 Bd2 Rd1 Be1 Qf2 Bf6 Qg2 Bh4 Re1 Rb8 a8N Rb7 Qf1 Ra7 Qg2 Ra1 Re2 Rf1 Nd5+ Kb3 Re3 b4 Re1 Ka4 Ng3 b3 Ne4 Ne7 g8Q b2 Qg7 Nc6 Qh7 Be8+ Kg8 Ncd8 Qf7 Bg7 Qe7 Nf4 e6 Nf7 Qd7+ Ka3 e7 Qe5 Qc7 N4e6 Qb8 Nh8 Qa7+ Ba4 e8N Qeg3 N8d6 Kb3 Ne7 Be8 Nb5 Kb4 Nd5+
Q2n1r2/3Qq3/1Pp1q1P1/1k1B1p1p/3bR2r/1bP1Q3/2nbN1rR/2r2Q1K b - - 0 1 legal: proof: e4 b5 a4 d5 axb5 dxe4 g4 h6 b3 Qd5 f3 exf3 g5 Qd6 g6 Qd8 h4 Bb7 h5 Qd6 Nc3 Qd8 Ne4 Bc8 Bb2 Qd5 Bf6 Qd3 Bg5 Qd8 Nf2 Nf6 Ng4 hxg5 h6 Ng8 h7 Bf5 Nh6 gxh6 Ra2 Be6 Ra1 Bc8 Kf2 Kd7 d4 a5 b4 f5 b6 Kc6 b7 e5 Rh2 g4 Rh5 g3+ Ke1 g2 Kf2 a4 Ra2 e4 Rh3 e3+ Kg3 e2 Kh2 e1Q Qb1 f2 Be2 f1R Rh4 a3 Ra1 a2 Qb3 Qe7 Qe3 Nf6 Re4 Be6 Bf3 Bb3 d5+ Kb5 d6 Nc6 d7 Nd8 Rc1 a1B Ne2 Bd4 c3 g1R Rc2 c6 Rb2 Nd5 b8Q+ Nb7 Qg3 Nd8 Qgf2 h5 Bh1 Ra4 Bg2 Rg8 h8Q Bh6 Qh7 Rf8 Qg7 Kc4 b5 Nb4 b6 Kb5 Qh7 Nc2 Bf3 Ne6 d8Q Rg5 Qg1 Rg2+ Kh1 Bg5 Qc8 Nd8 Qa8 Qe6 Qd7 Qe7 Qf2 Bd2 Qe3 Qe6 Rh4 Rb4 Bd5 Ra4 Re4 Qh4+ Qh3 Qhe7 Qe3 Rc1 Qf1 Rc4 Rh4 Bh8 Rh2 Rh4 Ra2 Bf6 Ra4 Be5 Rf4 Bd4 Re4
q2b4/1b2p1Q1/PR3Q1Q/Pp1n2pn/3n2q1/1knrB2r/1Pb1N3/B3KQ2 b - - 0 1 illegal: Other
4rRK1/1PRn4/nn2npP1/1n4nb/4R2r/8/Pp1bpNqk/1Q1QR2B b - - 0 1 legal: proof: f4 a5 h4 b5 b4 e5 fxe5 g5 c3 gxh4 c4 bxc4 e4 d5 e6 Qe7 b5 Bb7 e5 Bc8 Nc3 Qg5 Ne4 dxe4 Ba3 Qd8 Bb4 axb4 Ke2 Ke7 Ke3 h5 Kf4 c5 Kg5 f6+ Kg6 h3 d4 c3 g4 h2 d5 c4 b6 h4 g5 e3 b7 c2 Be2 c1N Qc2 b3 Nh3 b2 Qd1 c3 Bf1 c2 Rg1 h1N Rg3 e2 Ra3 Nb3 Rb1 c1N Qd3 Nc5 Bg2 N1b3 Nf2 h3 Qc3 h2 Ra7 Nbd7 Rc1 Nd4 Qh3 Ng3 Qh6 h1N Rc4 Ngf5 Qh2 Bh6 Qh4 Nhg3 Bh1 Nge4 Rc1 Ng7 Ra5 Nb5 Re1 Na6 Qg4 Qc7 Qg1 Qc3 Ra3 Qh3 Rc3 Qg2 Rc5 Nb6 Rc6 Nec5 Rc7+ Ncd7 d6+ Ke8 e7 Ne6 Kh5 Kf7 e8R Rh7 Rf8+ Kg7 Kh4 Kg6 Qf1 Kf5 Kh5 Kf4 Kg6 Rh8 Kf7 Kg3 g6 Bd2 Qg1 Rh4 Qf1 Ndb8 d7 Kh2 d8Q N8d7 Rc6 Ned4 e6 Nh6+ Kg7 Rb8 e7 Nf7 e8R Ng5 Re4 Nde6+ Kg8 Ndc5 Rc7 Bd7 Qe7 Re8 Qh7 Bc6 Qe7 Ncd7 Qc5 Bd5 Qc2 Bc6 Qb1 Bd5 Rd4 Bf3 Re4 Bh5 Rec1 Be3 Qe1 Bf4 Qd2 Be3 Re1 Bf4 Qdc1 Bd2 Qd1
q2rQ3/1p4pq/2NBb2P/k1nP2r1/r5pr/1nR3K1/2Q3PB/rB3q1B b - - 0 1 illegal: Other
2K3b1/1N1rq1r1/kp1r3p/nbp2q1P/N2bN1Q1/B1PR2N1/2n4P/1b1Q1n2 b - - 0 1 illegal: Other
3Rb1N1/b1qRK1nR/6rb/1RB1RP1q/2rb1p1r/1r2P3/B3P1k1/q7 b - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 g5 Qc2 gxh4 Rh2 b5 axb5 Nd7 Rh1 Nb6 Qb3 Nd5 Qd1 Ne3 dxe3 Be6 Nh3 Bd7 Ng1 Bc8 g4 f6 f4 Bb7 g5 Ba6 g6 Bc8 Nd2 Bd7 Ndf3 Bc8 Ng5 fxg5 f5 e6 Qd4 e5 Qf4 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 c5 b4 h5+ Kf3 a5 Ke4 g4 g7 Kg5 Ke5 a4 b6 a3 b5 c3 b7 h3 b8R Kh4 b6 Kg3 b7 c4 Rb1 h2 Rb5 c2 Bb2 c1B Rb6 c3 Rf6 c2 Rh6 a2 Rc6 a1B Bg2 h4 Bd5 h3 Bd4 Rh4 Bc4 Nf6 g8R Nh5 Ba2 Bcb2 Rc7 c1R Rc2 Kg2 Bc3 g3 Bb1 Qc7+ Kd5 Bh6 Bb4 Bd4 Rg7 Ra3 Ba2 Ba7 Nf3 Rb3 Nd4 Bd7 Rc5 Be8 Ke6 Rc4 Rd7 Ng7+ Ke7 Bc3 Nc6 Bd4 Ra1 h1R Re5 h2 Bc5 Rg1 Rd8 h1Q b8R Qh3 Rd1 Qg4 Rd3 Qh5 Rb5 Ra1 Bb1 Ra6 Ba2 Rb6 Nb4 Rg6 Nc6 Kf1 Rd2 g2 Rd1+ Kf2 Rh1 g1Q Nb4 Qa1 Bd6 Rh3 Rbc5 Kg2 Rb5 Qf3 Nd5 Bg5+ Nf6 Rhh6 Bc5 Qg4 Rf1 Rh2 Rf3 Qh4 Rh3 Qg4 Rh7 Rh4 Rh8 Bh6 Ng8 Qh5 Rh7
1B2BBb1/2n3bk/B4P2/3bpq2/1bn5/3bPqRP/B1nn1p2/2K3RN b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 h5 g5 a5 Na3 axb4 Qb3 Qd7 Qf3 Qd8 Qg4 hxg4 f4 e5 f5 b5 Kf2 Ra6 Ke1 Re6 fxe6 f5 Nc2 Rh6 Nd4 Rf6 gxf6 g5 Nb3 cxb3 Kd1 c5 a4 f4 d4 c4 a5 g3 a6 c3 h3 g2 a7 g4 a8B c2+ Kd2 b2 e7 Kf7 d5 Kg6 e8B+ Kh7 e3 b1N+ Kd3 b3 d6 b4 d7 g3 Bh5 b2 Ra3 b3 Bhf3 Nc6 Ra2 Nb4+ Ke2 Na3 Kd2 b1B Rh2 b2 Bab7 Ne7 Bg4 f3 Be2 f2 Bc4 Ned5 Bce2 Nc7 Ra1 Nc4+ Kc3 Bg7 Bef3 Ba2 Bh5 b1B Ba3 c1B Ba6 Bd3 Bc6 Nc2 Bd5 Bb7 Bf8 Qc8 d8B Ba3 Ne2 g1Q Be8 g2 Ng3 Qf5 Nh1 Qd1 Bde7 g1N Rg2 Qdf3 Rg3 Bc6 Bd6 Bb7 Be6 Bd5 Rd1 Nb2 Kd2 Bb4+ Kc1 Nc4 Re1 Q3f4 Bac8 Nf3 Reg1 Nfd2 Ba6 Qf3 Bc5 Bb3 Ba7 Ba4 Bb8 Bac6 Bec8 Bg8 Bcd7 Bb7 Ba4 Bc6 Bb3 Bcd5 Ba2
n1b1K2n/k1pp1B1P/1bQ5/5N2/1n1BNp1N/1PPr3q/Nq1qpN2/8 b - - 0 1 legal: proof: e4 b5 d4 e5 a4 a5 h4 h5 g4 hxg4 d5 Ra6 Ra2 Rf6 axb5 a4 b3 a3 Rb2 axb2 Rh3 Rb6 f4 Re6 dxe6 exf4 Re3 fxe3 e5 Rh6 Qf3 Rh5 Qd1 Rh8 Ke2 f5 Kd3 g5 Kd4 f4 c3 g3 b6 g4 b7 g2 h5 g3 h6 Qf6 e7 Qf5 Bc4 e2 Nh3 g1Q+ Nf2 g2 Nd2 b1N Ne4 Qe1 Be3 Na6 b8N g1Q Nc6 Na3 Nb4 Qh3 Na2 Nb4 h7 Nh6 Be6 Nc4 Qd3 Nb6 Qc4 Na8 Qc6 Rg8 Bc4 Nd3 Kd5 Rg3 Bd4 Kf7 e8N Ke7 e6 Kd8 N8d6 Qd2 Nf5 Qb1 Nh4 Nb4+ Ke5 Bc5 Kf6 Bb6 Bd5 Rd3 Kg7 Qbc2 Kf8 Nf7 Bc4 Nh8 Bd5 Ba6 e7+ Kc8 e8N Kb8 N8d6 Qb2 Ndf5 Ka7 Bf7 Bc8 Ke8
1n1k1n1R/K2R1Rb1/P3PB2/1qRbr3/r1NrNPnp/5bbR/8/2b4q b - - 0 1 legal: proof: c4 a5 e4 f5 d4 g5 b4 axb4 h4 gxh4 c5 e5 d5 d6 Qd4 Qe7 Bd3 Qd8 cxd6 exd4 e5 Kd7 Bc2 Ke8 Be4 fxe4 Kd2 h5 g4 c5 f4 b5 a4 e3+ Kd3 c4+ Ke4 d3 Kd4 b3 Kc5 c3 g5 e2 g6 e1B e6 d2 a5 d1N g7 b4 Ra2 h3 Rb2 c2 Nd2 h4 Ndf3 h2 Nh3 Bg3 Nfg1 Bb7 Nf2 Rh5 Ne4 Nf6 g8R Nh7 Rh8 Qd7 Kb6 Re5 Nf3 Nf2 Nfd2 Ng4 Nc4 Kd8 Be3 c1B Rc2 b2 a6 b1Q Bd4 b3 Bc3 Qe8 d7 Bg7 Rf8 b2 Rf7 Nf8 Re7 Rh5 Bf6 Re5 Rc3 Ra7 Rc2 Ba8 Rc3 Rc7 Rc2 Rc5 Ka7 Ra5 Rc3 Ra4 Rc2 Kc7 d8R+ Qd7 Rf7 Qa1 Rc3 b1R Re8 Rbb4 Ree7 Bb7 d6+ Kd8 Rc2 Qb5 d7 Bd5 Rc3 Bb2 Rhc1 h1B R1c2 Bc1 Rh2 Rb2 Rh3 Rd2 Rc2 Bf3 Rc3 Kc7 Rc2 Rd4 d8R+ Nfd7 Rh8 Qab1 Rh6 Kd8 Rh8+ Nf8 Na3 Be3 Rc5 Qh1 Nc4 Bc1 Rd7+
7r/b1bN3Q/RNr4P/pN1N1bn1/2n5/1bNP1nP1/5b2/1KR1kqbr b - - 0 1 legal: proof: c4 d5 f4 dxc4 b3 g5 Qc2 gxf4 Kd1 h5 g3 f3 a4 b5 axb5 h4 Bg2 f2 Bb2 h3 Kc1 hxg2 Bf6 exf6 Qd1 f5 Ra6 f4 Ra2 Nc6 Ra1 Nb8 e4 Kd7 h4 Ke6 b4 Ke5 h5 Kd4 h6 Kd3 e5 f1N e6 a5 e7 c5 e8N f5 b6 f3 b5 f4 b7 c3 b6 c2 Ra4 f2 Ra1 f3 Ne2 g1B Qe1 c4 Kb2 c1B+ Ka2 c3 Nc7 c2 Rh4 Nf6 Rb4 Nh7 Nd5 Bd6 Rc4 Bf5 Ne7 Nh2 Nec3 f1B Rc7 f2 Rd7 Nf3 Nd1 Nhg5 Ng6 Ra6 Rg7 Qf6 Nbc3 Nd7 b8N Bc7 b7 Nb6 Qe7 Nc4 Nb5 Rc6 Nd7 B1h3 b8N f1R Qf7 Ke2 d3 Bce3 Rc1 Ba7 Nf4+ Ke1 Nd5 Bgf2 Rg6 Rh1 N7b6 Be6 N8d7 Bhf5 Rb1 c1B Qh7 Bce3 Rc1 Bg1 Kb1 Bef2 Rg7 Qe5 Rg8 Qe2 Ra8 Qf1 N5e3 Bab8 Ra6 Ba7 Ned5 Nd6 N5e3 Bb3 Ned5 Nc4 N1c3+
B2B2N1/R1r4n/b1Brn2b/rB1p2n1/q1P3k1/1qP4r/2PKB2n/3N2b1 b - - 0 1 illegal: Other
R7/Bn3P1k/1pR1B1p1/nn1q1B2/nqP3PK/1Nb2r2/B1q4b/3Br2n b - - 0 1 illegal: No extended proof kernel
3q4/qp1R4/2p1bq1Q/1r4N1/r1R1NRRP/1r1kPRn1/r4P2/2nKb1b1 b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 cxd5 h6 d6 hxg5 Bh3 g4 Bg2 Be6 Bf1 Bc8 d4 f6 d5 f5 e3 f4 Kd2 f3 Be2 fxe2 Bb2 Rh5 Bc3 Rh8 Bd4 exd4 h4 Kd7 a4 e1Q+ Kc2 g5 a5 d3+ Kc1 c6 a6 d2+ Kc2 b3+ Kb2 g3 a7 g4 Na3 g2 Kb1 g3 Nb5 b2 Kc2 b1R Nd4 Rh5 Nh3 g1B Nf3 g2 Qe2 d1R Nf4 Qea5 Qd2 Nf6 Ra2 Rb3 Rh3 Na6 Nd3 Ne4 Ng5 Ng3 Ra4 Nc5 Rg4 Ra1 Qc3 Raa3 Qf6 Ra4 Qh6 Qc3+ Kd1 Qcf6 Nc1 Be7 Na2 Nd3 Nc3 Nc1 Nce4 Bh2 Kc2 g1Q Rf4 Qe1 Rg4 Qea5 Kd1 Bg1 Rf4 Rb8 a8R Qa6 Ra7 Ra8 Rg4 Qab6 Rf4 Ra2 Ra4 Qc5 Rb4 R8a4 Rc4 Qa7 Rg4 Ke8 Rf4 Be6 Rg4 Bf8 d7+ Ke7 Rf4 Nf5 Rhf3 Ng3 Nh3 Kf7 d6 Rhb5 Rg4 Bf5 Rff4 Ke6 Nhg5+ Kd5 Rf3 Be6 Rgf4 Qe8 d8R Be7 d7 Bb4 Ra8 Be1 d8R+ Ke5 Rd7 Qed8 Nd6 Kd5 Rg4 Ke5 Rcf4 Kd5 Nde4+ Kc4 Nd6+ Kd3 Nde4+ Qad4 Ra5 R5b4 Rc5 Rb5 Rh7 Qa1 Rc4 Qad4 Rc7 Qa7 Rd7+
8/PB2P1N1/nq4b1/P1n1B1n1/pb3b1K/B4R1p/kbr1n1rB/1r1N2B1 b - - 0 1 illegal: No proof kernel
7N/3r4/nkpB1r1P/4rbN1/3b1pPB/3n1BBP/1R1pBpqb/1n1K4 b - - 0 1 illegal: Other
2RKn2R/3N1BP1/R2R4/2p2pRb/pP3BPn/2pkrr2/q6n/r1b4r b - - 0 1 legal: proof: f4 b5 h4 d5 c4 dxc4 a4 bxa4 f5 g5 hxg5 e6 e4 Qd4 e5 Qd8 Qc2 Nd7 f6 Nb8 Qf5 Kd7 Na3 exf5 e6+ Kd6 e7 Bb7 Nc2 Kd7 Nd4 Bc8 Ne6 fxe6 Ke2 Kd6 Kf3 Ke5 e8R Kd4 Kf4 a5 b4 c5 g4 h5 d3 h4 g6 a3 Kg5 a2 Bd2 e5 Re7 a4 f7 e4 Rd1 a1R Bf4 h3 Bg3 c3 Re1 h2 Rb1 e3 Bf4 e2 Rd1 Nf6 Ra7 e1N Ra6 Be6 g7 Nf3+ Kg6 Bd6 f8R Rh3 Rh8 Ne8 Rh5 Qh4 Rg5 Nc6 Rd2 Bd7 Kf7 Qf2 Bg2 Nh4 Bd5 Bc7 Rd1 Ne5+ Ke7 Rb8 Bf7 Rf3 Rd2 Rb6 Rd1 Bb8 Kd8 Qa2 Rd2 Re6 Rd1 Kd5 d4 Kc4 d5 Re7 d6+ Be6 Bg8 Bf7 d7 Re6 Rdd6 Bh5 Rdb6 Kd3 Bf7 Rf2 Rc6 Nef3 Rc7 Re3 Rc8 Nd2 Nf3 Nf1 Rg1 h1R Ne5+ Kc2 Rg2 Nh2 Rg1 Rff3 Rd1 Ng6 Rdd6 Nh4 Ke7 Bc7 d8R Bb8 Re6 Bc7 Nd7 Be5 Rh6 Kd3 Rh8 Qb3 Rcc6 Qa2 Rdc8 Bd4+ Kd8 Be5 Bg3 Bf4 Re6 Re4 Reh6 Bc1 Bf4 Ree3 Rhd6+
nbk1BB1B/1R3p1p/7P/1npPBprP/q5nK/1q2Q3/b4Bp1/1R4q1 b - - 0 1 illegal: No proof kernel
4n1N1/2p2NNK/2q3p1/2P1PN2/1kprp3/4n2b/NnnbPB1p/b3Q1B1 b - - 0 2 legal: proof: c4 a5 f4 e5 b4 d5 a4 b5 c5 bxa4 Nh3 e4 Ng1 Ra7 Ra3 Rb7 Rc3 Qe7 Rc2 Qd8 Rc4 dxc4 g4 g5 h4 Ra7 h5 Ra6 Rh2 Re6 Rh4 Re5 fxe5 Bd6 Qc2 Be7 Qd1 Bf8 Bh3 gxh4 g5 Qe7 g6 Qd6 g7 Qf6 Bf5 Qd8 Bg6 hxg6 Kf2 Kd7 Ke3 Kc6 Kf4 Kb5 d4 f5 d5 a3 h6 a4 d6 a2 d7 a1N h7 h3 Be3 a3 Qe1 h2 Nf3 a2 Ng5 Qe8 d8B Nc2 Bg1 a1B Ne6 Na6 Kg5 Nf6 g8N f4 Ng7 f3 Kh6 f2 Be7 Ka4 b5 f1N b6 Nab4 b7 Nd3 b8N Bh3 Nc6 Nfe3 Nd4 Qc6 Nf5 Ne8 Bh4 Nb2 Nc3+ Kb4 Bhf2 Be7 Nf6 Rf8 h8N Rf7 Ng8 Bg5+ Kh7 Rd7 Nf7 Rd4 Qb1 Ng2 Qf1 Bd2 Qe1 Nge3 Na2+
q1Bbqq2/3N2bk/N1R1nP1r/1RbK4/RqP5/3Pr1r1/3N1rnN/7b b - - 0 1 legal: proof: h4 c5 c4 d5 a4 f5 e4 fxe4 h5 d4 a5 g6 Qf3 gxh5 b4 h4 Qc3 dxc3 Ba3 b6 axb6 Ba6 b5 Bc8 Bb4 cxb4 Ke2 Kf7 Ke3 Kg6 f4 h5 g4 a5 g5 e5 d3 a4 b7 b3 f5+ Kh7 b6 a3 Ne2 c2 Nd4 c1B+ Nd2 a2 Nc6 b2 Be2 b1Q Na5 h3 Bg4 h4 Rg1 h2 Rh1 h3 Bh5 Nd7 b8R Ngf6 b7 Bc5+ Ke2 e3 Kf3 e2 Bf7 e1R Ne4 Re3+ Kf2 Qf8 Bh5 Qb4 Rg1 h1Q Rg2 h2 Bf3 Rg8 Bh5 Nd5 Bg4 Nf4 Nd2 e4 Nf1 Bd2 Rg3 Ng2 Nb3 Ra6 Rf3 Rf6 Rg3 Bc3 Nbd2 Be5 Rf3 Bc7 Rf4 Bd8 g6+ Kh8 g7+ Kh7 Bh3 Rh6 Rg4 Rf6 Rg6 Rf7 Rc1 a1B Rc6 Bb2 Ra8 Rf6 b8N Bb7 Rca1 Rf7 R1a5 Bc3 Ng3 Qa1 R8a7 h1R Ngf1 Bb2 Bg4 Rh6 Nh2 Qaa3 R7a6 Be5 Rab6 Rff6 Rab5 Qa8 Na6 Bce7 Be2 Nf4 Ra5 Nc5 Ra4 Reh3 Rc8 e3+ Ke1 Bh1 Rb5 Ba1 Bg4 e2 Kf2 Ng2 Rc6 R3h4 Kf3 e1Q Bh5 Re4 Be8 Re2 Bd7 Bd6 Bc8 Rf2+ Kg4 Qee8 Kg5 Ne6+ Kg4 Re2 Kf3 Rf2+ Ke4 Rh3 Kd5 Re3 Rb7 Rh6 Rb5 Qf6 Nc7 Bc5 Na6 Rf8 g8N Bc3 Ne7 Rg8 Ng6 Qff8 Ne5 Rgg3 Nd7 Bg7 f6
3R1r2/1PP1bn1r/B4B2/knB2qr1/q1R2n2/3q2QP/3rB1RK/qn3b2 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 c5 d4 cxd4 Bd2 b5 axb5 f3 Bc1 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Rh7 Nf2 Rh8 Ng4 hxg4 Kf2 d5 Kg1 Kd7 c4 Kc7 e4 Kb6 b4 f5 g6 a5 e5 d3 g7 g3 h3 d2 e6 a4 e7 d4 e8R d3 Qe2 d1R Ba3 f2+ Kg2 d2 Qd3 Ba6 Rg1 f3+ Kh1 f4 Re7 g2+ Kh2 Nh6 g8B Nf7 Re4 Nc6 Qe3+ Nd4 Qd3 Be7 Rh1 g1R Qc3 Rh7 Bc1 a3 Re5 a2 Bb2 Rg5 Rc1 a1Q Be2 f1Q Rg1 f2 Qg3 f3 Rg2 Qc8 Bc3 Qf5 Rd5 Rf8 Rd8 Qa4 Ba1 Ne6 Bf6 Nf4 Rc2 Qe1 Rc3 f1Q c5+ Ka7 c6 Kb6 c7 f2 Rc4 Qd3 Bg4 Qe5 Bh5 Qea1 Be2 Qf5 Bh5 Q1d3 Be2 Nh8 Be6 Nf7 Bc8 f1N+ Kg1 Ne3+ Kh2 Nc2 Bb7 Na3 Bc8 Nb1 Bb7 Ka7 Bc8 Bb7 b6+ Ka6 b5+ Ka5 Re8 Qdd5 Rd8 Ba6 b7 Qdd3 b8B Rc1 b6 d1N b7 Ndc3 Bd7 Rd1 Ba7 Nb5 Bc5 Rd2 Bc6 Qe6 Bcf3 Qed5 Bf1 Q5f5 B3e2 Na7 Rc1 Qdc2 Bb5 Qce4 Be8 Bd3 Bb5 Qec4 Ba6 Nb5 Rc3 Qce4 Rc4 Qed4 Be2 Qde4 Bg4 Bf1 Bd1 Qd3 Be2
1r6/1R1r3r/K2NPP2/1pB4r/nP1rR3/nRNnbq1r/b3r2R/2k2N2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 gxh4 Qb3 a4 d4 axb3 e4 f5 Bd3 e5 Bc2 exd4 e5 Qe7 Bd3 Qd8 Be4 fxe4 Kd2 Kd7 f4 c5 g4 h5 a4 b5 a5 c4 g5 d3 Kc3 d2 a6 d1R a7 b2 d6 Kc6 g6 Kd5 g7 e3 f5 Ke4 f6 h3 d7 h4 Ra4 h2 Bd2 h3 Na3 b1N+ Kc2 e2 Be1 Ke3 Bh4 e1R Ne2 c3 Kb3 Kd2 Rf1 h1R Rf5 h2 Rg5 c2 Ng3 c1R Ra6 Rc4 Nf1+ Kc1 Re6 Re2 Rh5 Nh6 g8R Nf7 Bf2 Bc5 Rg7 Be3 Re8 Qb6 d8N Rcd4 Nb7 Nd7 Nd6 Rb8 a8R Qc6 Ra7 Qf3 Rb7 Rh6 Rg3 Nb6 Rh4 Bh3 e6 Bf5 Re4 Na4 Rh8 Rh3 Rhh4 Ne5 Rh5 Nbc3 Nb1 Nd3 Rhh7 Nb6 Rhh4 Nca4 Nc3 Nc4 Rh8 Rg1 Rh5 h1R Rhh7 Rh5 Rh3 Rg7 Rg3 Rhg5 Rh2 Rh7 Bg1 Na3 Rgh3 Rc4 Rg3 Rgh5 Rgh3 Bd2 Bc5 Rd4 Ba7 Ne5 Re3 Rf8 Nd5 Rc4 Nf7 Rc7 Rf2 Rh2 Nd6 Qg3 Bb6 Bd3 Re4 Rb8 Ba7 Qe3 Rg3 R2h3 Rh2 Qf2 Bb6 Bf4 Bd4 Rcd7 Rf3 Nc5+ Kc3 Bb1 Rd3 Ba2 Be3+ Red2 Kd4 Qf3 Bf2 Re2 Bg1 Bd2 Rb3 Na4 Nc3 Rdf7 Kd5 Rd7 Bc5 Be3+ Bd4 Ng6+ Kc6 Nf4 Ba7 Rd4 Bc5 Nb2 Kb6 Na4+ Ka7 Nd3 Ka6
b3b2R/P1B1Nr2/BP1r1nN1/4k1P1/B4bqp/5r2/nK3b1B/4rrnN b - - 0 1 legal: proof: b4 a5 h4 d5 f4 g5 a4 gxh4 c4 e5 cxd5 exf4 Qb3 b6 b5 Qe7 Qb4 axb4 a5 Qd6 a6 Qd8 Ra5 bxa5 Kd1 Kd7 Kc2 Kd6 d4 c5 e4 h5 g4 f5 b6 a4 g5 a3 a7 b3+ Kc3 c4 Ne2 b2 Rg1 a2 Na3 a1R Bd2 b1N+ Kc2 h3 Rg4 f3 Be1 h2 Kc1 h1B Nc3 h4 Bd3 f2 Nd1 f1R Rg2 f4 Bg3 c3 Nc2 Rf3 Rd2 Qd7 Bh2 Rh6 Nb4 c2 Nf2 Qg4 Kb2 Nd7 Ba6 Ngf6 Nc6 Nc3 Ne7 Na2 Rd3 Bg2 Nh1 Re1 Rc3 Bb7 Rc8 Ne5 Re8 Bg7 Rf8 Bc6 Rh8 Kd7 d6 Ke6 d7 Rf8 d8B Rf7 Bc7 c1B+ Ka1 Be8 d5+ Kd7 d6 Ke6 d7 Be3+ Kb2 Bf2 Nf5 Bf8 Ne7 Rg6 Nc8 Bd6 Ne7 Rd3 Nf5 Nf3 d8N+ Ke5 Ne7 Ng1 Ne6 Rg3 Nf8 f3 Rh6 Be3 Rh8 f2 Rg8 f1R Rh8 Kf4 e5 Ba8 e6 Ke5 Nd5 Bf2 e7 Bd7 e8B Bdc6 Bd7 Rh6 Bf5 Be8 Bd7 Rg6 Ba4 Rh6 Nf4 Rf3 N4g6+ Kf5 Bd8 Bf4 Ne7+ Ke5 Rg8 Nd5 Rh8 Rd6 Bc7 Nf6 Nfg6+
2NR3b/4P2n/4N1PR/1PKbr1qN/3rpn2/8/1qkbr1N1/RQnbn3 b - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 f5 d4 exd4 e5 g5 Nc3 gxh4 Bd3 c4 Nb1 c3 Be4 fxe4 Bd2 cxd2+ Ke2 Nf6 Kf1 Ng8 f4 Kf7 Ke2 Ke6 b4 Kd5 g4 Kc4 g5 d5 b6 h5 b5 a5 b7 h3 e6 a4 f5 a3 g6 h2 f6 h4 c3 h3 f7 a2 Qe1 Kb3 c4 d1B+ Kf2 d3 Ke3 d2 Kd4 Ne7 c5 Rh5 c6 Re5 c7 Nd7 b8R Kc2 Qf2 Bb7 c8N Bh6 f8N Nf6 Qf4 Nh7 Kc5 d4+ Kb4 d3 Nd6 Nd5+ Kc5 Qg5 Qg4 Nf4+ Kb6 Bd5 e7 Ra4 Nf3 Rd4 Re1 h1R Nc8 h2 Re2 Re1 Rg2 h1Q Rh2 Qg2 Nd7 Re2 Nc3 Qf2 Nf8 Qg2 Rb1 a1B Ne6 Bb2 Ra1 Qf2 Nb1 Bc3 Qg2 Bg7 Qg1 Bh8 Qg2 Re1 Ra2+ Kc1 Nd6 Bc2 Ra4 d1N Nh4 d2 Ra5 Nb2 Rd8 d1N Ra1 Ne3 Kc5 Bd1 Nc8 Nc2 Rh1 Ba5 Nc3+ Kd2 Ne2 Nbd3+ Kd6 Bc3 Ng3 Nc1 Kc5 Re3 Qh2 Ne1 Qg2 Qe2 Qf2 Kd3 Ng2 Qa2 Qb2 Bd2 Rh6 Re2 Nh5 Qb1 Qa3+ Kc2 Qa2+ Qb2 Qb1+
5nrR/b2PNr2/3p2QN/R1q2q1n/1P2p3/4P1b1/1RN1bb1n/K2kq2N b - - 0 1 legal: proof: g4 d5 h4 b5 c4 b4 c5 f6 g5 fxg5 a3 gxh4 axb4 h3 b5 Ba6 Bg2 Bb7 Bf1 Bc8 d4 Bf5 Bg2 Be4 Bf4 Nd7 Bd6 Bf5 Be4 Nb8 Bd3 Bc8 Bc4 dxc4 d5 Qd7 Bh2 Qd8 d6 Kf7 d7 Bb7 Bf4 Bc8 Bd6 cxd6 Kd2 Kf6 Kc1 Ke5 f4+ Ke4 b4 Ke3 Kb2 h5 c6 a5 f5 e5 c7 g5 f6 c3+ Ka2 a4 b6 h2 b7 e4 f7 h4 Nh3 c2 Nc3 c1Q Qg1+ Kd2 e3 g4 Qf1 a3 Rg1 h1N Qf6 g3 Nd1 g2 Qf1 Qg5 Nc3 Na6 b8N Nc5 Qa6 Ng3 Qc4 Ba6 c8R Bg7 f8N Nh6 Qg8 Bd4 Nd5 Be2 Nb6 Rh7 Nf2 h3 Na6 h2 Qb3 h1Q Ne6 Nh5 Rd8 Ng4 Nac7 Nh2 Ncd5 Qf5 Ng7 Ne6 Ne7 Qcc5 Rh8 Rg8 Rgb1 Nf8 Qe6 Qe1 Nh1 g1B Qg6 Bf2 Nc4+ Kc2 Rb3 Be5 Rbb1 Beg3 Rb3 Qg4 Ngf5 Rf7 Nh6 Qgf5 Ne5 Kd2 Nd3 Kc2 Rab1 Kd2 Ka1 a2 Ra3 Kc2 Ra5 Kd2 Kb2 a1B+ Ka2 Bc3 Rb2+ Kd1 Ka1 Bg7 Ne5 Bf6 Nc4 Bd4 Na3 Qc7 Qf6 Ba7 Nc2 Qcc5 Qg6
3n2K1/Pn1r2b1/b1N4P/QP2N3/3q1B2/BBrr1p1N/2n1k1np/1n2n2N b - - 0 1 illegal: No proof kernel
r2N2k1/1pnNbPN1/B2nb1r1/2K2b2/7q/B4r1B/1Pbp1Pr1/r5RB b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 c5 d4 cxd4 h4 g5 Qd2 gxh4 Qb4 axb4 Ra3 bxa3 Kd2 Kf7 Kd3 h5 Kc4 d5+ Kc5 e5+ Kb5 d3 g4 h3 c4 d4 c5 e4 a5 h2 g5 h4 c6 h3 a6 d2 a7 d1B c7 d3 Kc4 a2 Be3 a1R Na3 d2 Nc2 Nf6 g6+ Kg8 g7 Be7 Nb4 Ne8 Nc6 Nd6+ Kc5 Be6 c8B Rh6 Nf3 Bc2 Nfd4 Rg6 Rg1 h1R Ba6 Rh2 f6 Rhg2 Bd7 h2 Nf5 h1B Bf4 Qe8 Nd8 e3 Bh6 e2 Be3 Kh7 g8B+ Kh8 Bh7 e1R Ng7 Rec1 Bc8 Qa4 Bg8 Bef5 Bd5 Qh4 Bd4 Kh7 Bc3 Re1 Bb4 Re3 Ba3 Rf3 Bc6 Kg8 B8d7 Bfd3 Bh3 Bf5 Be4 Be6 Bd5 Nc6 Be4 Nd4 Bd5 N4b5 Bc6 Rb8 a8N Nc7 Nb6 Ra8 Nd7 R2g4 Bhf1 Bg2 Bd5 Bh3 Be4 Rgg3 Bc6 Bhf5 Bh3 Rd3 Bcg2 Rdf3 Bh1 Rg2 f7+
2bQbR2/n1N1bqP1/1r1knp2/Nb6/2Rn4/1N1RbPp1/P5Nn/K2b4 b - - 0 1 illegal: No possible last move, all moves rejected
N2qR2b/NqQP1p1b/k1N1p3/1pbNq1rR/R6q/4P3/5P2/4nKnn b - - 1 2 legal: proof: c4 a5 h4 g5 a4 b5 b4 Ra6 c5 axb4 a5 Rb6 c6 dxc6 axb6 c5 Qa4 c4 Qb3 Na6 Qd1 Nb8 g4 Bh6 h5 Qd5 Bh3 Qd8 Bb2 Bb7 Bf6 Ba8 Bg2 Qd4 Be4 Bf8 Bg6 Qd6 Be5 Bf3 Bg3 Qd8 Bh4 gxh4 g5 Bb7 Be4 Ba8 g6 Bb7 g7 Bc8 Bg6 hxg6 d4 Kd7 h6 Kc6 e3 Kb7 d5 c5 d6 c3 h7 c4 Qd5+ Nc6 Qf3 c2 Ra6 c1Q+ Ke2 h3 Rh2 b3 Qh1 b2 Qf3 c3 Rg2 h2 Rg4 h1Q Rd4 g5 Rh4 g4 Na3 b1Q Qf6 g3 Rh2 g2 Qg6 c2 Rh5 Qbb2 Nc4 Qh4 Qh6 Ne5 Ra5 Nf6 g8N Bf5 d7 e6 Qg5 Ne4 Nf3 Nd3 Ne7 Qe5 Nd4 Rg8 h8R Bh7 Ndc6 Ne1 Nd5 g1N+ Kf1 Bc5 Qg3 Rg5 Ra4 Qd1 Qf4 c1B Na7 Bb2 Re8 Qd2 Qg3 Qa5 Qh2 Ka6 b7 Bc3 Ncb6 B3d4 Rc4 Qc3 Na8 Qec7 Rh6 Bh8 Rh5 Q3e5 b8N+ Ka5 Ndb6 Qb7 Nbc6+ Ka6 Nd5 Qf5 Qc7 Qe5 Qb8 Nd3 Qc7 Ng3+ Kg2 Nh1+ Kf1 Ne1 Ra4+
8/2qb1N1N/1q3p1b/P1p1BRpn/1p1r2Pk/1KP1R1r1/3N1Rb1/3n1qnR b - - 0 1 illegal: No possible last move
2K1R3/3n1kn1/3P2q1/2p1pNQr/p1Nr1b1R/3RPRp1/bnP1Nbq1/b7 b - - 0 1 legal: proof: g4 d5 a4 b5 e3 bxa4 b3 h5 Bb2 f5 Qf3 f4 Kd1 hxg4 Be5 d4 Kc1 d3 Qd1 Nf6 Be2 Ng8 Bf6 dxe2 Bh4 Kf7 Bg3 fxg3 Ra3 Ke8 Ra2 Rh5 Ra1 Rh8 Kb2 e1B Kc3 g5 Kc4 c5 Kb5 a5 h4 e5 f4 g2 d4 a3 h5 g3 d5 g4 b4 a4 d6 a2 f5 Ne7 h6 Bf2 h7 Bh6 f6 Kf7 Rh4 Qg8 Kb6 Nd7+ Kc7 Nf5 b5 Bf4 b6 Ng7 b7 Rb8 Ne2 g1Q Na3 g2 Nc4 g3 Qd4 Qh1 Rd1 a1B Rd3 g1N Qe4 Qg2 Qf5 Nf3 Qg5 Ke6 f7 Nd2 f8N+ Kf7 Ne6 Qe8 N6d4 Qe6 Na5 Nc4 Nf5 Nb2 Nc4 Qg6 Nc3 Rf8 h8R Rd8 R8h6 Rh8 Ne2 Rh7 Rh2 Rh8 R6h4 Rh5 Rh1 Nf6 Re1 Be6 Rf1 Rf8 b8R Nd7 Re8 Rg8 Nd2 Ba2 Nc4 Rf8 Re6 Rb8 Re8 Rb3 Kc8 Rb4 Na3 Rd4 Nc4 Be1 Rf3 Bf2 Rc3 Qh1 Rb3 Qg2 Rd3
1Nr1kqNK/p2PN1nR/8/2q1qn1r/7R/1b3r1Q/3PrPqN/Q3q3 b - - 0 1 legal: proof: g4 f5 a4 b5 b4 bxa4 g5 c5 b5 e6 e3 Bd6 Bg2 Bf4 Be4 fxe4 exf4 h6 Ba3 hxg5 Bb4 cxb4 Qf3 g4 Qe2 Rh7 Qd1 Rh8 Ke2 g5 Ke3 e5 h4 a3 c4 g3 h5 g2 h6 g4 b6 a2 c5 b3 c6 g3 b7 b2 f5 Na6 b8Q Nc7 h7 Ne7 f6 Ba6 Qf1 Ne6 Nf3 g1Q Rh4 g2 Nh2 Bc4 Na3 b1Q Qb2 Qc1 Nc2 Rc8 Nb4 Bb3 Na6 Ng7 Nb8 Qc5+ Qd4 Rf8 h8N Qh1 Re1 g1R Nf7 a1Q Qh3 Qg2 Nh6 Rh1 Ng8 Qaa5 Ra1 Rf7 Rh7 Rf8 Ra4 Nef5+ Ke2 e3 Kd3 e2 Qa1 e1R Rah4 Qde7 f7+ Kd8 Qa4 Re2 Qa1 Qc7 Rc4 e4+ Kc3 Re8 f8N e3 Ng6 Qf8 N6e7 Q7e5+ Kd3 Qf7 Rd4 Rf8 Rdh4 Ke8 Qf3 Qb2 Ke4 Qff6 Kf4 Qba3 Qg3 Qfe5+ Kg5 Rf7 Kg6 Qab4 Nd5 Qf8 Nde7 Qbc5 R7h5 Rf6+ Kh7 Rf7 Kh8 Rf6 Ng4 Rh3 Rh7 Rh6 Qh2 Rh5 Qhh1 Rf3 Nh2 Re1 Ng4 e2 Qh2 Rc1 Qh3 Rc4 Qg3 e1Q Qh3 Re4 Nh2 Re2 cxd7+
1K4Q1/5B2/3nP1Q1/b1Q2P1R/n2bp1Bb/kPR5/4rp1q/r1br1Qr1 b - - 0 1 legal: proof: e4 b5 d4 c5 a4 cxd4 axb5 f6 f4 Nh6 f5 e5 Bf4 exf4 e5 Ng8 e6 Ba3 Qg4 Be7 Qd1 Bf8 g4 h6 Nd2 Ne7 Ngf3 Qc7 Ng5 hxg5 Nc4 Qd8 Ne5 fxe5 Qf3 Ng8 Qd1 Bb7 f6 Be4 Ke2 Bg6 Ke1 Bf5 gxf5 g4 Kd2 g5 Kd3 a5 Kc4 d5+ Kb3 g3 Ka4 e4 h4 g2 c4 g1B f7+ Ke7 c5 d3 b3 d2 b6 g4 Kb5 f3 c6 Kd6 b7 a4 h5 a3 c7 g3 c8B d4 h6 d3 h7 a2 Rh2 g2 Qe1 d1R Rh1 d2 Rh3 Bd4 Rh6 g1B Rh3 Nf6 Rh6 Na6 b8Q+ Qc7 Qb7 Be7 f8Q Nc5 Qf2 Na4 Rh5 Ne8 Qh4 Bge3 Be2 Rg1 Qe1 d1R Qf1 Bc1 Bd7 f2 Qf7 Bh4 Qg6 Rd2 Bd1 Re2 Qc8 Rg8 Rb1 a1B h8Q Bac3 Qhh7 Rf8 Qhg8 Ba5 Rb2 Kd5 Rc2 Qh2 Rc3 Rf7 Qc7 Rg7 Qa7 Nd6+ Ka6 Rh7 Be8 Rd7 Bf7 Rdd8 Rc6 Rd7 Rb6 Kc5 Rc6+ Kb4 Rc3 Ra2 Bg4 Ka3 Q8h7 Ra1 Qhg8 Rc8 Qb6 Rdd8 Ka7 Rc4 Rd3 Rc2 Re3 Rd7+ Kb8 Rd2 Qbb5 Rd1 Qe5 Rc7 Qd5 Rc2 Rc3 Re2 Qc5+
4N3/6R1/1r3R2/1Rrpp1nn/N1P1Qr1R/b6P/1rn1Kn1P/1q1Q1n1k b - - 0 1 legal: proof: d4 a5 b4 b5 e4 f5 a4 fxe4 axb5 c5 b6 cxd4 b5 Bb7 Ba3 Bd5 Bb4 axb4 Bd3 h5 Be2 Be6 Bf3 Bh3 Bg4 hxg4 gxh3 Rh4 Ra2 Rh7 Ra1 Rh8 f4 Kf7 c4 Kf6 f5 Ke5 b7 Kf4 f6 g5 f7 e5 b6 d5 Ra3 d3 Ra4 g3 Ra3 g4 Ra1 g2 Qc1+ e3 Qb2 d2+ Kd1 g3 Na3 e2+ Kc2 e1N+ Kd1 b3 Qb1 b2 Ne2+ Kf3 Ra2 g1R Nd4+ Kg2 Ndb5 Nf6 Nc7 Nc2+ Ke2 d1N Kd2 Ra5 Nab5 Ba3 f8R Ne4+ Kd3 Nd2 Na8 Nd7 b8Q Rf1 b7 Nf6 Qa7 Qb6 b8R Rf4 Nc3 Nf1 Qh7 Nf2+ Ke2 Rc5 Nc7 Nh5 Qd1 b1R Ne8 Rb2 Na4 Qb4 Qg6 Rh6 Rh8 Qb3 Qgd3 Rb6 Ra1 Qa2 Rb7 Qb1 Rg7 Nfe3 Re1 Nf1 Qe4+ Kg1 Rh6 g2 Rf6 Kh1 Nc3 Bb4 Ra5 Ba3 Rb5 Nd3 Qf5 Nf2 Qg6 Ne4 Na4 g1N+ Kd3 Nf3 Ke2 Nf2 Qe4 Rcc6 Qc1 Rc8 Rd1 Rc5 Rd4 Ra2 Qd1 Rb2 Qg6 Ng5 Re4 Rf3 Rh4 Rf4 Qe4+
3N2N1/3bR2P/3rNQP1/q1k1N2b/bpp2K1Q/2pR3r/3rP3/1b1q1n2 b - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 f4 axb4 d5 e5 Be3 g5 Bd4 exd4 Qd3 g4 Qd1 Bh6 g3 f5 Qd3 Bg7 Nh3 h5 Qd1 h4 Ng1 h3 Bg2 Nc6 Bf3 Ne5 Be4 Nf7 Bg2 Ng5 Bf3 Be5 Bg2 hxg2 fxg5 f4 Kf2 f3 Ke1 Bf4 gxf4 Kd7 Qd3 Ke7 Qd1 Ke8 Kd2 Ke7 h4 Kd6 a4 c5 f5 b5 f6 c3+ Kd3 g3 Ke4 d3 f7 f2 f8N f1B g6 c4 h5 d2 a5 b3 h6 b2 a6 b4 a7 Kc5 d6 Bg4 d7 Ne7 Rh5+ Nd5 Rh3 Ne3 Nf3 g1Q Ne5 g2 Kf4 Qa5 d8N Bh5 Qe1 d1B Nd2 b1B Qh4 Ba4 Ra2 Rc8 a8Q Rc6 Qa6 Rd6 Rf3 Qh1 h7 g1R Ra3 Bh3 Rg3 Nf1 Rd3 Bhd7 Ra1 Rd5 Qaf6 Rd6 Ra2 Rg3 Ne4+ Kb6 Nfe6 Rh3 Qfg5 Rg8 Nf6 Rg7 Ng8 Qhd5 Re3 Qd1 Qf6 Re7 Rd2 Re8 Ng5 Kc5 Rdd3 Ree6 Nec6 Rd5 Re5 Rd6 Re7 Rh1 Ne5 Rh3 Re3 Rd2 Rd3 Kb5 Nge6 Kb6 Nd4 Kc5 N4e6+
R4n2/3N4/1n1Qpr1p/3k1NP1/1n3p2/1nP2n2/P1p1K1nb/NbN2Q1R b - - 0 1 legal: proof: b4 a5 h4 axb4 c4 b5 Na3 b3 c5 b2 f4 b1N Bb2 b4 Be5 b3 f5 Nc3 Rc1 b2 Bf4 b1N g4 g5 Rc2 gxh4 Rb2 c6 Rb4 Qb6 cxb6 Ra5 Ra4 c5 e4 e5 Bc4 exf4 e5 Nb5 Bd5 c4 e6 Bb7 e7 N1c3 Be6 fxe6 g5 Be4 Rh2 Bb1 Rh1 Nd5 Rh2 c3 Rh1 c2 Rh2 Na7 Rh1 Rc5 Rh2 Rc3 dxc3 h6 b7 h3 f6 Na6 b8N Nb5 Qe2 Nb6 Nc6 d5 f7+ Kd7 e8N d4 Rc4 d3 Kf1 d2 Qd1 Nd4 Nb5 Bc5 f8Q Nb3 Nca7 Nf6 Ned6 Nh7 Nf3 Bg1 Rh1 h2 Nfd4 Nb4 Qc1 d1N Ke2 Ne3 Qf1 Ng2 Rc8 Rg8 Re8 Rg6 N6f5 Rf6 Qc5 Nf8 Nac6 Nd2 Nb3 Nf3 Nb5d4 Kc7 Qc4 Kd7 Nc1 Kc7 Nh4 Kd6 Nb8 Ke5 Qc7+ Kd5 Rc8 Be3 Rg1 h1N Nd7 Nf2 Nhf5 Nfd3 Ra8 Nc5 Rh1 Bg1 Ndb3 Bh2 Na1 Nb3 Qd6+
2QnRBK1/2Q3bR/1r2r1n1/q1Bk3r/2Bbpr2/1PBnP2q/3P4/4nq2 b - - 0 1 legal: proof: c4 f5 a4 d5 a5 dxc4 a6 f4 e3 f3 Nc3 bxa6 Nce2 a5 Qb3 a4 Qc2 Bg4 Qd1 Bc8 g4 fxe2 f4 h6 f5 Kd7 f6 Ke8 Kf2 Bd7 Nh3 Bf5 Ng5 hxg5 gxf5 g4 Kg3 Kf7 Kf4 e1N Ke5 a5 h4 c5 h5 g5 b3 a3 h6 a2 h7 a4 Qf3 a3 Bh3 g3 Qe4 g2 Qb1 g1R Bg2 c3 Qb2 g4 Be4 g3 Rh5 c4 Bd3 g2 Rh6 c2 Qd4 c3 Rh5 Bg7 Bf1 Qc8 Ba6 Nc6+ Kd5 e5 Bb5 e4 Rh2 Rf1 Kd6 g1Q Rh6 Rb8 Rb1 a1Q Qa4 a2 Qa5 Rb6 Bb2 Rf4 Rc1 Nd8+ Kd5 Re6 Bc4 Qf1 Qc5 Rb6 Qc7+ Ne7+ Ke5+ Ke8 Rh2 Ng6+ Kd5 Kf8 f7 Bd4 Rh6 Kg7 f8B+ Kf6 Bd6 Re8 Rh3 Re6 Rh2 Qd7 h8Q+ Kf7 Rh7+ Bg7 Rd1 c1N f6 c2 Bc3 Ncd3 Rb1 c1R Rb2 Qb1 Rc2 a1B Ra2 Rd1 Ra8 Qa2 Rc8 Qe7 Bc5 Qa5 Bb4 Bd4 Bc3 Nb7 Re8 Nd8 Rh1 Ra1 Qh3 Ra4 Qf5 Rab4 Rh7 R4b5 Qh3 Rec6 Qhc8 Qd7+ Qd6 Qdh3 Qe5 Re6 Qd6 Nh8 Qdc7+ Kg6 f7 Kf6 f8B Ng6 Qd6 Kf7 Qdc6 Re5+ Kd6+ Re6+ Kd7 Kf6 Q6c7 Kf7 B5b4 Re5 Bbc5 Rh5 Re7+ Kf6 Ke8 Nb7 Bd6 Kf5 Kf7 Nd8+ Kg8 Kf6 Bc5 Kf5 Re8 Kf6 Qa7 Ke5 Bb5 Kd5 Qac7 Rf2 Ba6 Rf4 Bc4#
K5N1/6rP/QqNRR3/bnR2qQq/4R2P/3r2q1/n1p1bP2/k3nbb1 b - - 0 1 legal: proof: g4 d5 e4 a5 c4 e5 d4 h5 b4 axb4 gxh5 dxc4 d5 Kd7 Ba3 Ke8 Bb2 f6 Bd4 exd4 e5 f5 Bd3 Ra6 Bc2 Ra8 Be4 fxe4 Ke2 Kf7 a4 g5 h4 c5 a5 b5 e6+ Kf6 d6 Ke5 e7 c3 e8Q+ Ne7 h6 b3 d7 d3+ Ke3 b2 h7 c2 a6 c1Q+ Nd2 b1B a7 b4 Qa4 b3 Nh3 b2 Qc2 g4 Ra3 g3 Rd1 g2 Qa4 g1B Rb3 c4 Rb4 c3 Qa2 Nc6 Qg6 Ba6 Rc4 Rg8 Qb3 Rg7 Qa3 Nc8 Qb4 Qb6+ Rd4 Nd6 d8R Nb5 Qa5 Bb4 Qa3 Ba5 Rd6 Nb4 Qg2 Rd8 a8R Na2 Ng5 Bc2 Qf1 b1Q Re1 Bd1 Rc8 Be2 Ne6 c2 Rcc6 Qb3 Qc5+ Qd5 Ra4 Qa3 Nd4 Qb3 Qc4 Qf7 Qg2 Qf5 Qg5 Bf1 Nb1 d2+ Nc3 d1Q Rb4 Qa4 Nd5 Qh5 Nf6 Qb3+ Qd3 Be2 Ng8 Rdd7 Re6+ Kd5 Rcd6+ Kc5 Ra4 Qc3 Ra3 Kb4 Rb3+ Ka4 Rb4+ Ka3 Rc4 Kb2 Rc5 Bf1 Nc6 Qce5 Re2 Ka1 Qc4 Nbc3 Qb5 Qg3+ Kd4 e3 Qa4 Nb5+ Kc4 Qff7 Kd5 Qf6 Rd2 e2 Rd4 e1N Rde4 Nd4 Qa3 Bae2 Qd3 Qfg6 Qa6 Qf5+ Ne5 Rb7 Rc8 Qb1 Rc4 Rb3 Rc5 Nb5 Kc6 Rd3 Rec4 Nc7 Re4 Nb4+ Kb7 Na2+ Ka7 Qb2 Nc6 Qb4 Qb7 Qb6+ Kb8 Nb5 Ka8 Qd8+ Qc8 Qb6 Qa6
3nQ3/4qbNb/q1k2r1q/Q4Np1/p4qNb/2P1q1PR/PK1n1N2/4r2R b - - 0 1 legal: proof: e4 c5 f4 e5 c3 exf4 d3 d5 Qb3 d4 Be3 b5 Na3 b4 Rc1 c4 Rd1 dxc3 Be2 c2 Bf1 c3 bxc3 Be6 Bd4 Bf5 Be3 Bc8 g3 h5 Bd2 h4 Rb1 h3 Bg2 hxg2 Qb2 b3 Qc1 b2 Qd1 Bb7 Bc1 bxc1Q Rb4 Qb2 Rd4 Bc8 Qb1 Qa1 Kd2 c1Q+ Ke2 f5 h4 a5 e5 f3+ Kf2 a4 e6 f4 h5 Rh6 e7 Be6 Qb6 Bf7 Qb1 Rf6 h6 Nc6 h7 g6 Rc4 Kd7 e8N Qe7 h8Q Nd8 d4 Bg7 Rb4 Kc6 Nc2 Bh6 Rb7 Bg5 Qb4 Bh4 Qa5 g5 Nd6 Qab1 Nh3 Qb6 Nf5 Ra6 Rh2 Re6 Rh1 Re1 Nce3 Nf6 Rb8 Qbc5 Rb2 Qb6 Re2 Qd2 Ng4 Qd3 Ng7 Qh7 Rc2 Qh6 Nf5 Qb5 Qg8 Rb6 Re2 Qa6 d5+ Kc7 d6+ Kc6 Rf1 Ne4+ Kg1 Qhf8 d7 Nd2 Kf2 Qh6 Qg6+ Kb7 Rh1 Rf6 Qg8 Kc6 Qe8 Rb1 Rc1 Ra1 Ke1 f2+ Kd1 f1B Kc2 g1Q Rf2 f3 Kb2 Bd3 Rh2 Qge3 Rch1 Re1 Nhf2 Bb1 Nd3 f2 Rh3 f1Q Ndf2 Bc2 Nd6 Qfc4 Nc8 Bb1 Nd6 Bh7 Nf5 Ne6 R3h2 Q3c5 Rh3 Qf4 d8N+ Kd5 Nb7 Nd8 Ng7 Qee3 Nd6 Qe7 Qh8 Kc6 Ndf5 Qce3 Qe8+
1rN2N1Q/1kbq1bnN/1Q1p3r/3P3q/R5r1/b3N1P1/3bPnKp/Rn6 b - - 0 1 legal: proof: a4 e5 f4 exf4 b3 b5 b4 h5 axb5 c5 Ba3 cxb4 Bb2 Qg5 Bc1 Qd8 g3 h4 Bg2 h3 Bb2 hxg2 Ba3 Nc6 Bc1 Nb8 h4 g6 h5 Qb6 Bb2 Qa5 Bf6 Qd8 Bh4 g5 Ra4 gxh4 Ra6 Bc5 Ra1 Bf8 Kf2 a5 d4 f5 c4 h3 h6 f3 d5 f4 h7 b3 c5 h2 b6 a4 b7 b2 c6 a3 c7 a2 Na3 Nf6 Nc4 Nh5 Qe1 Ng7 Rc1 a1B Rb1 Nc6 b8Q Ne5 Qeb4 Ng4+ Ke1 f2+ Kd1 f1R+ Kd2 f3 Qc5 f2 Nh3 g1B Qcb4 Bc5 Nf4 d6 Ne3 Be6 c8N Kd7 Qb3 Bf7 Ng6 Bb4+ Kd3 Bd2 Ke4 Rc1 Kf3 Rc4 Nd1 f1Q+ Nf2 Qe7 Na7 Qh3 Nd1 Qh5 Kg2 Bb6 Ne3 Bc7 Q3b6 Nf2 Rbc1 Rh4 Rc4 Rg4 Ra4 Qe6 Qg8 Rb8 Nf8+ Kd8 Rc1 Qd7 Rf1 b1N Rh1 Na3 Rc1 Bac3 Ra1 Bb4 Ne6+ Ke7 Ng5 Nb1 Qc8 Bc5 Qg8 Ba3 Qc8 Re8 h8N Rd8 Ng6+ Ke8 Nf4 Ke7 Nfe6 Rh8 Qg8 Rh6 Nf8 Ke8 Ngh7 Kd8 Nb5 Kc8 Qh8 Rb7 Na7+ Kb8 Ng5 Ka8 Ngh7 Rb8 Qc5 Kb7 Nc8 Nh3 Qd4 Nf2 Qb6+
1n3q2/B2k1P1b/RP1pQ1Bp/1n2qR1q/KP5r/8/4b1Rb/R1Q1b1rr b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 g5 h6 Nd2 h5 h4 Kf7 Ndf3 Qc7 Ne2 Qd8 Ng3 Nf6 Ne5+ Ke8 Ng4 hxg4 h5 Rg8 h6 Rh8 h7 Ng8 Nf5 Qc7 Nh6 gxh6 Be3 Qb6 Bc1 Qd8 Kd2 e5 b4 a5 c4 d3 Kc3 d2 Kb3 g3 f4 g2 g6 g1R f5 a4+ Ka3 e3 g7 e2 b6 e1B c5 e4 c6 e3 f6 e2 c7 Bd6 Bb2 Bh2 Bg2 d6 f7+ Kd7 Qc2 d1B Be5 Nf6 g8R Ne8 Rg7 Rg8 Rg3 Rg4 h8R Rh4 Be4 Ba6 Bf4 Bd3 Rg2 Qg5 Bg6 Qh5 Bg5 Ra6 Kb2 a3+ Kb3 a2 Bd8 Ra5 Rg8 Rf5 Ka4 Rff1 Qb3 B1c2 Rg5 Ba6 Rf5 Bcd3 Rc1 a1Q+ Qa2 Qg7 Ra1 Qf8 Qe6+ Kc6 c8Q+ Nc7 Qe3 Bb1 Qce6 Nb5 Bc7 Bd3 Qc1+ Bc2+ Qb3 Kd7 Ra2 Bf2 Ra3 e1Q Ra1 Qe5 Ra2 Nc6 Bb8 Be1 Ba7 Nb8 Ra1 Bf4 Rh3 Bh2 Rg3 Rh1 Rg2 Rfg1 Rh8 Qfe7 Rc8 Qf8 Rc3 Bd3 Qc4 Be2 Rca3 Bb7 Qb3 Be4 Qe6+ Kd8 Rf6 Beg3 Ka5 Bb7 Bb1 Be4 Rff2 Bh7 Bg6 Rf1 Rf5 Rfg1 Ka4 Be1 Kb3 Rc4 Ra6 Rh4 Qf6+ Kd7 Ka4 Qb2 Qe5 Qc3 Qd5 Qe5 Qe6+
2r1N3/q1r2RNQ/R1bp2RK/3r1qP1/3Pr2Q/3r2P1/4bp1n/b2kr1R1 b - - 0 1 legal: proof: b4 a5 f4 axb4 g3 c5 f5 e5 f6 b3 Bg2 e4 Bf3 exf3 Ba3 b2 Bb4 cxb4 Kf1 Nc6 Ke1 Ne5 h3 Ng4 hxg4 gxf6 Kf1 f5 Ke1 f4 Kf2 Ke7 a4 Ke6 e4 Ke5 c4 Kd4 d3 h5 c5 f5 g5 b5 c6 b3 e5 b4 e6 h4 a5 d6 c7 h3 a6 h2 e7 Bb7 e8R Rh7 c8Q Qa5 a7 Nf6 Qd2 Rc7 Qe2 Ng4+ Ke1 f2+ Kd2 f1Q Qe7 f3 Qe2 f4 Ra2 f2 Qd8 f3 Qe6 Bg7 Qed7 Rac8 a8R Bc6 Qf5 Qa7 Nc3 b1R Rf8 b2 Rg8 b3 Nh3 Re1 Rg1 h1R Ra6 b1R Ne4 b2 Nf4 Rh4 Qh7 Nh2 Nh5 Rbd1+ Kc2 Ke3 Nef6 Ke2 Ne8 Bf6 Rg6 b1R Nhg7 Ba1 d4 Rb5 Qd7 Rf4 Qg4 Rd3 Qgh4 Re4 Rb8 Ra5 Rb5 Qh3 Rf5 f1B Rf4 f2 Rf7 Rd2+ Kb3 Rd3+ Kc4 Bb5+ Kd5 Kd1 Qf4 Be2 Qfh4 Rg4 Ke6 Re4+ Kf6 Bc6 Nh5 Qe6+ Kg7 Rd5 Kh6 Qf5 Nhg7
nB3n2/bR4P1/3qR3/B1pp1knp/r3n2K/Qr1b1P2/P2Qn1B1/3r3B b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 g5 b4 axb4 h4 gxh4 d5 c6 c4 Kf7 c5 Qc7 Nc3 Ke8 d6 Qb6 Nd5 Qd8 Bg5 Ra3 Bc1 cxd5 c6 Qa5 Ne2 Qd8 c7 Ra7 Nd4 Ra8 Nc6 dxc6 g4 Kf7 g5 e5 g6+ Kf6 g7 h5 d7 b5 Ba3 b3 Qd4 b2 Qf4 b1N Qc4 e4 Ke2 e3 Kf3 h3 Kg3 b4 Bg2 h2 Rf1 h1R Bb2+ Nc3 Be4 e2 Bf3 e1N Qg4 b3 Rd1 Na6 Qf4 Bc5 Rd3 Ba7 Qa4 c5 Re3 Ne7 Re4 Ng6 Qa3 Nf8 Re6+ Kg5 f6 Kf5 Bc1 b2 f7 b1N Bf4 Nd2 Bd6 Bb7 c8B Nc7 Rg1 Qf6 d8B Ba6 Bg2 Nef3 Rb1 Bd3 Rb7 Rc1 Bh1 Ng5 f3 Rd1 Kh4 Nde4 Bd7 Rb8 Bb5 Na8 Ba5 Ne2 Ba6 Nd7 f8Q Rh6 Qd8 Nf8 Qb6 Qd8 Qbb4 Rf6 Bdc7 Qd6 Qd2 Rh6 Rb1 Rb4 Bb8 Ra4 Rb7 Qd8 Re8 Rb6 Re6 Qd6 Bc4 Rb3 Ba6 Bc2 Bb5 N2c3 Bf1 Ne2 Bfg2 Bb1 Qdc1 Bd3 Qd2
3Q4/4Q2B/r1PqPnq1/1K1Rnqpb/3RR1p1/R1B2r1q/pP1b2kq/8 b - - 0 1 legal: proof: e4 e5 a4 c5 g4 h5 d4 exd4 e5 hxg4 Ra2 f5 Nd2 b5 Ne4 fxe4 axb5 d3 Ne2 Rh5 Nd4 cxd4 Ra1 Rh8 Kd2 Ke7 f4 Ke6 h4 Kd5 b6 a5 c3 e3+ Ke1 Ke4 h5 d2+ Ke2 a4 h6 a3 c4 a2 h7 Qf6 c5 Qf5 c6 Nf6 b7 Ra6 Bh3 d3+ Kf1 e2+ Kf2 e1Q+ Kg2 Qg3+ Kf1 Bb4 e6 Rf8 h8R d5 Rh5 Nbd7 b8R d4 Ra8 Qh2 Bg2+ Ke3 Bf3 Ne5 Be4 Bd7 Rd8 Qg6 f5 Be8 Rd5 Kf4 Ra5 Kg3 Ra3 Qh7 Rg5 Bh5 Rg1+ Kh3 Rg2 Qg6 Re2 Ne8 f6 Rf7 Qe1 d1Q Bd2 Qb1 Bc3 d2 Qd1 d3 Re1 Rf8 f7 Nf6 Rf5 Ba5 Rf4 Qc2 Bf5 Qb3 Rd4 Qd5 Ree4 Qd6 Qe1 d1Q Rb1 Qdd2 Rd1 Qdh6 Qd2 Qc5 Qg5 d2 Rd5 Kg3 Rdd4 Qh3+ Ke2 Kg2 Qh4 Qf4 Rd5 Qfh2 Qg5 Rb8 f8Q Rb3 Qe7 Qd6 Bb4 Rf3 Bc3 Qf7 Bh7 Qg6 Qe3 Qf5 Qb6 g5 Qbd8 Qg6 Re1 Qc5 Red4 Qb5+ Kd1 Qbd3 Ree4 Qc2+ Ke2 Qb1 Rf4 Qbf5 Rfe4 Bb4 Kd1 Ba5 Kc2 Bb4 Kb3 Ba5 Ka4 d1Q+ Kb5 Qd3+ Rc4 Qd2 Rdc5 Qd6 Rd5 Bb4 Be1 Bd2 Rcd4 Bf4 Bb4 Bd2 Bc3
rb3N1k/rQQb2rq/2p4r/2Nq2p1/2R5/RKRpP1P1/n2P3R/5qn1 b - - 0 1 legal: proof: a4 b5 axb5 c5 f4 e5 g3 exf4 c3 h5 Qb3 h4 Qd5 h3 Qg2 hxg2 e3 Qa5 c4 Qa3 b3 Nf6 Bd3 Qb2 Be4 Rh5 Bc6 Qd4 Bb2 Rh8 Bc3 Qd5 Bd4 cxd4 c5 Qd6 Be4 Qc7 c6 Qd8 c7 Ng8 Bc6 dxc6 Kd1 a5 Kc2 g5 h4 f5 h5 Kf7 b4 Kg7 b6 a4 b5 a3 b7 f3 b6 f2 Kb3 f1R Nh3 g1Q Kc4 f4 Nc3 a2 Rb1 a1R Kb3 d3 Kb2 f3 Na4 f2 Rc1 Ne7 Nc5 R1a7 Nf4 Na6 b8Q Nb4 b7 Ng6 Rc4 Nh4 Ng6 Qd5 h6+ Kg8 Kc3 Bd7 c8Q Nf3 h7+ Kg7 Qd6 Qh2 b8R Qh4 Qf4 Bd6 Nf8 Qh2 Rb7 Bb8 Qfc7 Rg8 Rb6 Na2+ Kb3 Qh6 h8R Qg6 R8h3 Qh7 Ra6 Kh8 Q7b7 Rg7 Qcc7 Re1 Rg1 Re2 Rc1 f1Q Rh4 Ng1 Rc3 Rh2 Ra3 Rh3 Rd4 Rh5 Rh4 Rh6 Rh2
n3rR1Q/2BrB1pq/R1Pp3r/K1pb2b1/Q3P1q1/q3k3/5qPQ/1n3Q2 b - - 0 1 illegal: No proof kernel
3K4/1QP4b/N1Ppq1p1/3nQBr1/B2B2r1/qp1bB3/2b1q1Pk/1N2b1n1 b - - 0 1 legal: proof: b4 a5 h4 axb4 f4 e5 d4 exf4 a4 c5 dxc5 g6 Rh3 h6 Rg3 h5 Rg4 hxg4 Ra3 Ra7 Rc3 Ra8 Rf3 gxf3 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 f5 c4 f2 e4 f3 h5 f4 h6 b3 c6 b2 a5 Qf6 Kb6 Ne7 Kc7 b5 h7 b4 a6 b3 c5 Qe6 a7 Nd5+ Kd8 d6 c7 Nd7 Bc4 f1Q c6 f2 Nh3 f3 Ng5 Qe2 Nc3 b1B Qe1 f1Q Be3 f2 Nh3 Bc2 Qd2 Qa1 Ba6 f1B Bb5 Qa3 Qe1 Rb8 Ba4 Rb5 a8Q Rb4 Qf2 Bg7+ Qf8 Ba6 Nf4 Bc4 Qe8 Rf8 h8B Rf5 Qb7 Rg5 Nb1 B4d3 Nh5 Bc4 Nf6 Bh6 Bb6 Kf4 e5 Kg3 Ne4+ Kh2 Be3 B4d3 Nc5 Rbg4 Qf8 Qg8 e6 Ne5 e7 Nf3 e8B Qe6 Bc3 Ng1 Na6 Bg7 Ba1 Bc3 Qg7 Be1 Bad4 Qf6+ Qe7 Bc4 Bd7 Qd3 Qb8 Nc3 Qa8 Bg8 Nb8 Nd5 Bf5 Bh7 Qa6 Qe5 Qf6 Qe6 Qb7 Qd2 Na6 Bfd3 Qh8 Qe2 Qe5+
q3R3/4rn2/2RpNb2/4QQ1K/Rp1bR1P1/rP2nrb1/2kNrP1p/4b3 b - - 0 1 legal: proof: a4 c5 g3 b5 Ra2 h5 Ra1 b4 Ra3 h4 Bg2 h3 Ra2 Ba6 Ra1 Bb5 axb5 hxg2 h4 f5 e4 fxe4 d4 cxd4 g4 g5 h5 Bh6 Bf4 Bg7 Bg3 Bf8 Bh4 gxh4 Ke2 Kf7 c4 Kf6 b6 Ke5 b3 a5 h6 e3 Kf3 d6 h7 d3 b7 Kd4 c5 e5 c6 a4 c7 a3 c8Q a2 Qc6 e2 Nd2 e1B Rh2 h3 Qd7 Kc3 Qc8+ Nc6 b8R e4+ Kf4 e3 Nc4 e2 Ne3 d2 Qb1 d1R Qc7 Rd3 Nf5 Be7 Qc8 Ra3 Qd7 Na5 Ng7 Nh6 Qd1 Re8 h8R Nf7 Rf8 Nc4 Ne6 Ne3 Rh1 Bf6 Rb6 Qa8 Nf3 g1B Nd2 Re7 Re8 Bd4 Kg3 Bh2+ Kh4 Bg3+ Kh5 h2 Qb5 Bf6 Qf5 Kb2 Ra6 Rc3 Rc1 a1B Rc6 Rd3 R1c4 Rc3 Re4 Bd4 Nf3 Bf6 Qd4 Kc2 Nc5 Rd3 Qde5 Bd4 Rg1 Nd1 Nd2 Rf3 Nf1 Ne3 Ne6+ Bec3 Nd2 e1R Nc4 Re2 Ra1 Ra5 Ra3 Be1 Ra1 Rb5 Raa6 Ra5 Ra7 Ra2 Ra4 Ra3 Nd2+
B1Q3bQ/K3R2n/1rP2pp1/1rq1n3/k5Bp/PB2n2P/2pr2q1/q1B2R2 b - - 0 1 illegal: No proof kernel
1q4n1/B7/b1q2RP1/2pPp3/Bp1p1Qbb/2pR2Bn/2KPrQ2/1B3r1k b - - 0 1 legal: proof: e4 d5 h4 f5 c4 fxe4 b4 g5 b5 b6 Ba3 d4 Bd6 Qd7 Bg3 Qd5 Nf3 Qe5 Nc3 Qd5 Ne5 a6 Nd3 gxh4 cxd5 a5 Nb4 axb4 Na4 Ra5 Nc5 bxc5 Qc1 Ra6 Qd1 Ra8 f4 Kd7 a4 Kd6 a5 h5 b6 h3 a6 h2 b7 h4 a7 c4 Ke2 c5 Qb1 h3 Kd1 e3 Ra5 e2+ Kc1 e1Q+ Kc2 c3 f5+ Qe5 f6 Nc6 f7 Nd8 Ra4 Ne6 Bh4 Ng5 Rg1 h1Q g4 h2 Rg2 Nh3 g5 e6 Kc1 Be7 f8Q Qf6 g6 Ke5 Qb2 Kf4 b8B+ Kf3 Bhg3 e5 Qa1 Ba6 Kc2 Rh5 Qh6 Qc6 Qe1 Bh4 Bd3 Qf1 Re2 h1B Re3+ Kg2 Qf4 Rh8 Bf5 Qfb5 Rd3 Qbb7 Qe2+ Kg1 Ra2 Bf3 Qf2+ Kh1 Ra5 Bg4 Rb5 Qcc8 Rb6 Rh5 Rf6 Qbc6 Bc7 Q8b7 Bb6 Rf8 a8B Qb8 Ba7 Rh7 Bb7 Rh5 Bbc8 Rg5 Bfd7 Rf5 Qg5 Rf3 Qf4 Re3 Be8 Re2 Bcd7 Qca8 Ba4 Rf7 Beb5 Qc6 Bc4 Rh7 Ba2 Rh5 Bb1 Rf5 Qh6 Rf3 Qe1+ Rf1 Qf2 Qcb7 Qg5 Qc6 Qgf4
3R4/2pQ1p2/pnq1b1R1/1qk2p1B/Pp1r3Q/Q5Br/PK1p1P2/n3b1Qr b - - 0 1 illegal: Other
1nkq1n1Q/2Qp1K2/2br4/P1Q1pP2/R1P2bp1/N3pbr1/3Q1B1p/1Q6 b - - 0 1 legal: proof: e4 a5 f4 c5 b4 axb4 d4 Nf6 dxc5 Ng8 f5 Ra5 Nf3 Ra7 Ng1 Ra8 a4 Nf6 e5 Qc7 Ra3 Qb6 Rg3 Ng8 Rb3 Qf6 exf6 Ra6 Nd2 Ra7 Nb1 Ra8 h4 g6 h5 Bh6 Re3 Bf4 Be2 Bg5 Re6 Bh6 Bg4 Bg7 h6 fxe6 Bh5 Bf8 g4 Kd8 g5 Ke8 Nd2 Ra5 Ndf3 Ra8 Nh4 gxh5 g6 Nc6 g7 Nb8 Ng6 hxg6 Ke2 Kd8 Kf3 b5 Kf4 e5+ Kg5 h4 c4 b3 c6 e4 f7 e5 h7 h3 a5 e3 Bb2 h2 Nh3 b4 Bc1 b2 Bd2 b1Q Nf2 b3 Be1 b2 Nd3 Bb7 c7+ Kc8 Qc2 Ra6 Bf2 Ne7 g8Q Rd6 Nb4 Bf3 Qd2 Qe1 Nc2 b1B Qg7 Rg8 Na3 Bbe4 h8Q Bc6 Kh6 g5+ Kh7 Qe2 Ra1 Ng6 Ra2 Be7 f8Q+ Bd8 Qh6 Qe1 Qh4 Qb1 Qe4 Qb6 Qb1 Rg7+ Kh6 Rg8 Qf7 Bf6 Qfd5 Nf8 Q5d4 g4 Qc5 Bg5+ Kh5 Bf4 Ra1 Rd3 Ra2 Rg5+ Kh6 Rh5+ Kg7 Rh3 Kf6 Rd6+ Kf7 Rg3 Ra1 Kb7 c8Q+ Ka8 Qd8 Kb7 Nb5 Qc7 Ra2 Qc8 Ra4 Qc7 Na3+ Qb6 Qdf6 Kc8 Qe7 Qd8 Qa7 Rh6 Qec5 Rd6 Qc7+
K1b2k2/4Qrnp/2p1Q1Pr/3QpQ2/7N/PpP3NQ/4pqrB/2r1n3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 e6 d6 e7 Kd7 e4 Nf6 e5 Ng8 e6+ Kc6 a3 Qd7 Ra2 Ra5 Rb2 Ra6 Rb3 Ra8 Re3 Qd8 Re5 dxe5 g4 f6 h4 g6 f4 Ra6 Rh3 Ra5 Re3 f5 Re4 fxe4 f5 Ra6 f6 Ra8 g5 Bg7 Bh3 Qf8 Bf5 gxf5 g6 Qd8 Nd2 Bh6 Nb1 Bg5 hxg5 Kb6 Qd6+ Kb5 Qd1 Kc6 Ke2 b5 Ke3 b3 e8Q+ Nd7 e7 b2 f7 f4+ Kd2 Kd6 f8Q f3 c3 e3+ Kd3 b4 g7 b3 Ne2 f2 Qh1 f1R Kc4 Ngf6 Kb5 Rg8 Qhh5 Nc5 Nd2 b1R Qh3 Ra6 Ng3 e2 Nf3 Nh5 Nh4 Nd3 Qff5 Ne1 Bf4 Rc1 Qef8 Rc6 e8Q+ Qe7 Qf8f7 Qf6 Q7g6 Rf2 Ka5 Rf8 g8Q Rf7 Kb5 Rg2 Qe7+ Kd5 Qh6 Ng7 Qhg6 Re6 Qh6 c6+ Kb6 Rd6 Ka7 Kc5 Ka8 Kd5 Qfg4 Qf5 Qhh5 Rh6 g6 Qf6 Qhg5 Qf5 Qe6+ Kc5 Qf3 Qf6 Qef5 Kd6 Qd5+ Ke7 Nf1 Rg1 Bh2 Rg2 Ng3 Be6 Qb8 Bc8 Qbd6+ Ke8 Q6e6+ Kf8 Qfe4 Qf1 Q4f5 Qf2 Qge7+
2B4r/3Q2Q1/BK5p/4RQ1q/1k2np1P/1Pb1rPnr/1bpn3Q/1bQ2n2 b - - 1 2 legal: proof: d4 g5 a4 e5 d5 b5 axb5 Na6 Ra4 Nb8 Rd4 exd4 f3 g4 Be3 g3 Bf2 gxf2+ Kd2 Qe7 Kc1 Qh4 Kd2 Qd8 b3 c5 Nc3 c4 Na4 c3+ Kd3 Na6 Nb2 cxb2 Kd2 Nb8 c4 d6 c5 Bg7 c6 Qd7 Nh3 Qc7 Nf4 Bf8 Nd3 Qd8 Nc5 dxc5 Kd3 Ke7 Kc4 Kd6 h4 b1N e4 f5 g4 a5 c7 a4 g5 a3 g6 d3 b6 h6 Kb5 a2 b7 a1B g7 f4 Qd2 c4 Rg1 c3 Rh1 Nd7 b8Q Ndf6 Qa7 Nh5 Qb7 Qg5 Qa2 d2 Kb6 d1R Ba6 f1N Qh2 Bf5 c8B Nhg3 Qf7 Nf6 g8Q Bb2 Qgg7 Qh5 Rg1 Be7 Rg2 Rd3 Re2 Re3 Qfg6 Nbd2 Qg4 Ke5 d6 Kd4 e5 Nfe4 d7 Bf6 e6 Ra7 d8Q+ Rd7 Ka5 Kc5 e7 Bd4 e8Q Rb7 Qgf6 Rg7 Qdd7 Rgg8 Qgg7 Bh7 Bd3 Bg6 Ka6 Kb4 Qff5 Nf6 Qc7 Re4 Re3 Ne2 Qg5 Re5 Bc4 Bb1 Qgf7 c2 Qcd7 Re4 Qgf5 Bdc3 Kb6 Rg3 B4a6 Rh3 Qg7 Neg3 Re1 Rd4 Qee2 Re4 Qd1 Ree8 Re3 Re5 Qc1 Re4 Rd3 Re3 Rd5 Nfe4 Re5
6q1/PpN3Q1/kr2PQQq/1r4Qr/4pNqb/K2b3r/N2q3P/3Rn3 b - - 0 1 legal: proof: d4 h5 g4 f5 gxf5 a5 e4 d6 c4 Nf6 f4 Nh7 b4 axb4 a4 Bd7 c5 Nc6 d5 Bc8 f6 e5 f5 Ne7 Bh3 Ng8 Bg4 hxg4 Be3 Ra5 Bd4 exd4 e5 Ng5 e6 Ne4 Ra3 Ra8 Re3 Nd2 Re5 dxe5 Kf2 Nc4 Ke1 Nd6 cxd6 Ra7 Qd3 Ra5 Qd1 Ra8 Kd2 c5 Kc2 g5 Kb2 d3 a5 c4 a6 c3+ Ka2 g3 a7 e4 Qf3 b3+ Ka3 g2 Qh3 c2 Kb4 c1Q Na3 b2 Qg4 b1R+ Ka4 d2 Nh3 g1Q Nf2 d1Q+ Nc2 Rh3 Qf4 g4 Qg3 Rb6 Nd3 Be7 Qh4 g3 Qh6 g2 Nc5 Qg4 Na6 Qge1 Qg7 g1R Ncb4 Qh6 Na2 Qed2 Qh7 Rh5 Ka3 Rgb1 Rd1 Bd7 Qg7 Qc8 f7+ Kd8 f8N Bh4 f6 Ne7 f7 Bb5 d7 Ng6 Nc7 Ne5 Ng6 Nd3 Nf4 Ne1 Qg6 Rb4 Ne8 Ba6 f8Q Bd3 Qfg7 Rb2 Nc7 R2b5 Qa1 Ke7 Qh8 Kd6 d8Q+ Kc5 Qdf6 Qg8 d6 Re8 d7 Re7 d8Q Rh7 Ne2 Rf7 Qb2 Rb3+ Ka4 Rf3 Nf4 Rh3 Qhg7 R3b4+ Ka3 Kc4 Na8 Kb5 Qdg5+ Ka6 Qbf6 R4b5 Nc7+
1K1b3Q/nQ2r2N/Qnb1rN2/P2B3P/knQq2Np/5b2/n3b2P/4qb2 b - - 0 1 illegal: No proof kernel
2qq2Q1/1nr1QP1r/2k3bR/1rn2Q1p/2q3b1/7P/1PNb2pq/RK4RR b - - 0 1 legal: proof: d4 b5 g4 f5 a4 e5 axb5 exd4 Bh3 c5 Kf1 c4 Kg2 c3 Bd2 cxd2 Kf3 Bb4 Bf1 Ba3 Kg2 Bf8 f4 g6 Kf2 Bb4 Bh3 Qh4+ Kf1 Qd8 g5 Bf8 Bg4 Qb6 Na3 Qd8 Nc4 Nh6 Ne3 fxg4 f5 Ng8 f6 Bg7 Nf5 gxf5 Kg2 Bh6 Kf1 Bf8 c4 a5 e4 h5 Ke2 d5 Kd3 Kd7 Kc2 f4 f7 a4 g6 a3 g7 a2 b6 d3+ Kb3 g3 e5 f3 c5 d4 h3 f2 e6+ Kc6 b7 f1Q e7 g2 e8Q+ Nd7 b8R Nh6 g8Q Nf5 Nf3 Nd6 Qb1 d1Q+ Qc2 d2 Rb1 a1R Rh2 d3 Qg4 Qc1 Rh1 d1Q Qd4 d2 Nh4 R1a7 Qf6 Rc7 Ra1 Rh7 Nf5 Bh6 Qg8 Ra5 Ne3 Rb5+ Ka2 Qdf3 Qe6 d1B Qe7 Qf4 Qf5 Bg4 Nc2 Qh2 Ra8 Nb7 Ra6+ Rb6 Rg1 Bd2 Rh1 Qd3 Rg1 Qc3 Rh1 Qf1 Rg1 Qfc4+ Kb1 Kb5 c6+ Ndc5 Rc1 Be6 Rh1 Bd5 Rg1 Be4 Rh1 Rc8 c7 Kc6 Qf4 Bg6 Qf5 Ra8 Rg1 Ra7 c8R+ Qhc7 R6a3 Rb5 Rb8 Q3g3 Re3 Qdc8 Ree1 Q7d8 Rh1 Qh2 Reg1 Ra3 Ra8 Rc3 R8a6+ Qb6 Ra8 Ne6 R1a4 Qb3 Re4 Qbd8 Qge8+ Kb6 Ra7 Rc7 Qh4 Qc4 Qg8 Nec5 Ra1 Kc6 Rd4 Na4 Qe7 Nac5 Qf2 B6f5 Re4 Kd5 Re6 Bd3 Rh6 Bg6 Qf4 Kc6 Qf5
3qQNb1/Q1P4p/pKPr2Q1/1b1bnR2/P5qR/R1Rn1r2/1k3r1n/b7 b - - 0 1 legal: proof: c4 g5 b4 c5 bxc5 d6 h4 gxh4 c6 Bd7 c7 Bh3 c5 Nh6 c6 Be6 Ba3 Ng8 Bc5 Bc8 e4 dxc5 d4 e6 d5 Qd7 d6 Qe7 Nd2 Qd8 Bc4 f5 Bd5 exd5 e5 Be6 Ne4 fxe4 Qd4 Bg4 Qd1 Bc8 Kd2 Kf7 Kc3 Ke6 a4 b5 g4 h3 f4 b4+ Kb3 a6 g5 e3 g6 e2 g7 e1N d7 c4+ Kb2 c3+ Kb3 h2 Qc1 d4 Kc4 c2 Qd1 c1Q+ Qc2 d3 Ra2 d2 Qc3 d1R Re2 b3 Re4 b2 Rd4 b1B Re4 Nd3 Re3 Nf6 g8R Ng4 Nf3 Bg7 Nh4 Qc2 Rf8 Qe2 Rf5 Rf8 Ng6 Ba2+ Kd4 Bc4 Qc2 Bb5 Qc5 Rf1 Qa7 Rf2 Rc1 h1B Rc3 Qf3 Rh5 Qh3 Rh4 Nh2 Ra3 Rf6 Nf8+ Kf5 e6 Bd5 e7 Qg4 e8Q Rd6+ Re5+ Kf6 Re3 Bh8 Kc3 Bg8 f5 Bg7 Rf3 Bd5 Qg6+ Ke5 f6 Bg8 f7 Kd5+ Kb3 Ba1 Rfh3 Rf3 Kc2 Kc4 Kd2 Rf2+ Ke3 Kb4 Ra2 Kb3 Ra3+ Kb2 Rg3 Qf6 d8Q Be6 Qe8 Qd8 Rc3 Bd5 Rgh3 Qe2+ Kd4 Nd7 Rf3 N7e5 Re3 Ne1 Kc5 Qg4 Kb6 N1d3 Reh3 Qe7 Rf3 Rad8 Rf5 Rf6 Rf3 Rdd6 Re3 R6f3 Ra3 Ne1 Rec3 N1d3 Ne6 Rd2 f8R Qd8 Rf5 Rdf2 Nf8
r3q1Bb/B1Rqb1Q1/2r1BP2/2pp2p1/2P4q/6PB/1n1rQk1n/1Q4bK b - - 1 2 legal: proof: f4 a5 b4 axb4 a4 e5 e4 c5 d4 h5 g3 b6 d5 h4 Nd2 h3 Nb3 Bb7 Nd4 Bc6 dxc6 f6 Ngf3 exd4 Ne5 Na6 Rg1 Nb8 Rg2 hxg2 Nf7 Rh6 e5 f5 Ng5 Rh4 Ne4 fxe4 Kf2 Qc7 Qh5+ Kd8 Be3 Ne7 Ba6 Qd6 Rh1 Qf6 Bc1 Ng8 Qd1 Ke8 Ke1 Qd8 Bf1 Rh8 Kf2 Kf7 Kg1 Ke6 c4 Kf5 h4 d5 a5 g5 c7 b3 c8Q+ Nd7 a6 d3 h5 e3 e6 Ke4 e7 e2 e8B Kf3 h6 b5 a7 d2 f5 b2 h7 b1Q Qc7 b4 Kh2 g1B+ Kh3 b3 Bg6 b2 Qb7 Kf2 Qbb3 e1B Bh5 Nh6 Bf7 Qe8 Bg8 Be7 Qbc2 Rc8 a8B Nb6 Bc6 Na4 Bd7 Rc6 Bde6 Ng4 Qd3 Qa2 Qb1 Nh2 Qg4 d1Q Bf4 Qd4 Bb8 Bc3 Ba7 Qb3 Qgd1 Qb7 Qg4 Qbd7 Qh5 Ke3 Kg2 Qf4 Qhd1 Bg7 f6 Qh4 Qa2 b1R Qde2+ Kd4 Qac2 Rb2 Qg6 Rd2 Qb1 Nf3 Rh3 Nb2 Kh1 Nh2 Bg2 Qe4 Rh6 Qf4 Bgh3 Qh4 Bgf7 Rg8 h8Q Rf8 Qhh7 Bh8 Qg7 Rg8 Rh7 Rf8 Qg4+ Ke3 Bg8 Kf2 Qh6 Qg6 Rf7 Ra8 Qg7 Qe8 Qge4 Qgh7 Qe5 Bd6 Rc7 Be7 Qh6 Qhf7 Qg7 Qd7 Qee4 Qfe8 Qe2+
2B1Rr1n/8/p1Q1b1B1/3PK1Q1/4pnr1/qp2b1P1/q1B1P2Q/1q1n1rBk b - - 0 1 legal: proof: f4 h5 c4 g5 fxg5 d5 Qc2 dxc4 Qd1 h4 a4 h3 b4 Qd4 g3 Qg4 Ra3 Qf4 Rf3 Qd4 Rf2 Qd8 Rg2 hxg2 Nc3 a6 b5 a5 Nd5 Qd6 Nb4 axb4 a5 Qd8 a6 Ra7 Nh3 Qd5 Nf2 Ra8 a7 Qd3 Ne4 Qd5 Nc5 Qd8 Na6 bxa6 Kf2 Kd7 Ke3 Ke6 Ke4 g1R d4 f5+ Kf4 c5 h4 b3 b6 c3 h5 c4 b7 c2 g6 c3 h6 Nf6 g7 Rg8 h7 Nd5+ Kf3 f4 Ke4 f3 h8Q f2 Qd3 Nf4 Bd2 c1Q Rh2 c2 Bc3 Qa5 Be1 Qb1 Qh7 c1Q Rh5 Nc6 b8Q Nd8 Qc7 Qaa2 Bh3+ Kf6 d5 f1N Qc6+ Be6 Re5 Qca3 Bf5 Kg5 Qh2 Ne3 Bg6+ Kg4 Bf2 Rf1 Bg1 Nf7 Qf2 Kh3 Kd4 Rd8 a8B Nd1 Qd2 Nh8 Bb7 Re8 Bc8 Rd8 Qfe3 Kg2 Qf2+ Kh1 Re3 Bh3 Bc2 e5+ Ke4 Be7 Qc1 Rgf8 g8B Be6 Bh7 Bc5 Bg6 Rg8 Bh5 Rg4 Bg6 Bf7 Kf5 Rf8 Re4 Ng2 Qg5 Be3 Rc4 e4 Ke5 Nf4 Rb4 Qa5 Rb7 Bg8 Re7 Be6 Re8 Q5a3 Qh2#
3q4/q1n1b2N/p3n2N/P1p1Rn2/P2qR3/1bk2q1P/n1N4R/KR1b2N1 b - - 0 1 legal: proof: c4 d5 a4 dxc4 b3 b5 a5 a6 Ra4 Ra7 Ra1 Rb7 d4 Rb6 e4 Rf6 d5 Rf3 Bg5 Rc3 Bc1 Rc2 Bg5 Ra2 Bc1 Ra4 bxa4 Bg4 Bd2 Bd7 Bc1 Bc8 Qg4 f5 e5 g5 Qe4 h5 Nd2 Rh6 Nb1 Rd6 exd6 Bd7 Ra3 Be6 Ra1 Bc8 f4 fxe4 g4 Bh6 f5 Bd7 Bf4 gxf4 g5 Bc8 Be2 Bf8 Bg4 hxg4 Kd2 Qd7 Kc2 Kf7 Kb2 e5 f6 c5 h3 g3 Na3 e3 Rf1 f3 Rb1 b4 Re1 e4 Re2 c3+ Ka2 b3+ Kb1 g2 Rh2 b2 Ka2 b1B+ Ka1 f2 Nc4 f1Q Rc2 e2 Rd2 e1N Ra2 e3 Rb2 c2 Nd2 c1N Ne4 e2 Rb5 Ba2 Ng3 Nf3 Ne4 e1Q Nd2 Qee7 Ne2 g1Q Rb1 Qa7 d7 Nc6 d8R Nh6 d6 Ke6 g6 Ke5 d7 Nfd4 f7 Nb5 g7 Bb3 g8R Na2 Nd4 Nc7 Re8 Nd8 N2f3+ Ke4 Rg3 Kd3 Rg4 Kc3 Nc2 Qd4 Ng1 Bb7 Rh4 Bf3 Re4 Qh4 R8e5 Nde6 d8N Bd1 Rd5 Qf3 Rde5 Bd6 f8N Nf5 Nf7 Qd8 Nh7 Be7 Nh6
4q1b1/1p2b1pR/4bQP1/k3r1P1/bbPPB2q/1rRNn3/4p3/1B1N2K1 b - - 0 1 legal: proof: g4 a5 b4 axb4 h4 e5 c4 d5 f4 c5 e4 f5 g5 d4 h5 b3 Qf3 Qd6 Qc3 dxc3 Ba3 Qf6 Bb4 cxb4 Rh2 Qg6 hxg6 Nc6 Rh4 fxe4 Rh3 e3 Rh5 e4 Rh1 Ne5 fxe5 Ra7 Nh3 Ra3 Ng1 Ra8 a4 Kd8 d4 Kc7 a5 h5 e6 h4 a6 Kb6 a7 c2 e7 c1Q+ Ke2 b2 e8B h3 Rh2 b3 Nc3 b1B Rh1 h2 Bh3 b2 Ba4 Nf6 Ra2 Be6 Bc6 Be7 Ra5 Rae8 a8Q Ng4 Nf3 Bc2 Ba4 b1Q Rc5 Qb5 Rf1 h1B Qb8 Ka5 Bg2 Rh3 Nd1 Bg8 Ke1 e2 Qd6 Qf4 Ne5 Ne3 Rf3 Qh4+ Rg3 Bb3 Kf2 e1B+ Kg1 Bb4 Rc8 Qd7 Bc6 Ba4 Nd3 Qd8 Bf1 Bf3 Bd5 Bg4 Qf6 B4e6 Rb8 Nc2 Be2 e3 Be4 Qd7 Bg4 e2 Bgf5 Ne3 Rf3 Rc8 Rg3 Rc5 Rf8 Qe8 Rf3 Bgf7 Rh8 Re5 Rh7 Bg8 Nf4 Ng4 Rc3 Rf3 Bb1 Rd3 Be4 Ne3 Rc1 Rc3 Nd3 Rb3 Rc3
1r6/BkBP2Nr/bN1n2nq/2P2rPn/P2bbRb1/bKR5/3r1r2/6Q1 b - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 f5 exf5 g5 Bb2 gxh4 Bc1 c5 Qg4 b3 Qd4 Ra5 Qc3 Ra8 Qb4 cxb4 c5 Qd6 Ba6 Qd8 Bc4 dxc4 Kd1 Kd7 g4 Kc6 f4 b5 a4 h5 d4 e5 g5 b2 Kc2 b3+ Kc3 b4+ Kd2 e4 f6 c3+ Kd1 c2+ Kd2 h3 f7 e3+ Kd3 h4 Kc4 e2 d5+ Kb7 d6 e1R f5 h2 f6 h3 d7 Nh6 Bd2 c1B Be3 Re2 Na3 b1B Bd4 b2 Kb3 Rf2 Nc2 Qb6 Nf3 Bg7 f8B Nf7 Nh4 Rh7 Ng6 Nd6 f7 Nc6 Nf4 Ne7 Ne1 Be4 Nd5 b1R+ Bb2 Ng6 Nd3 Bd4 Nc7 Rb8 Rg1 h1N Na8 h2 Rf1 Ng3 Nf4 h1R Ra3 R1h2 Ne6 Nh5 Ng7 Rf5 Rf4 Rd2 Be7 Bf3 f8Q Bg4 Bf6 Ra1 Bc3 Raa2 Be5 Rf2 Qf7 Rad2 Qd5+ Qc6 Nb6 Bb2 Qg2 Bc1 Ra2 Ba3 Qg1 Qh1 Rc2 Qh2 Ka2 Qh1 Bb2 Qh2 Rc3 b3+ Kb1 Qh1 Bc1 b2 Ka2 b1B+ Kb3 Be4 Bb2 Ne8 Bc7 Nd6 Bc1 Kc6 Bb2 Ba6 Bc1 Rg8 Bb8 Kb7 Ba7 Rb8 Rff3 Rc2 Bf4 Rcd2 Bh2 Nf6 Bf4 Qh6 Be5 Nh5 Rf4 Nc4 Bc7 Nd6 Qb1 Bb2 Qc1 Ba3 Qg1
bK6/N2rnqBp/b6P/3P1Pr1/N3bR1q/2b2r2/qP3B2/nnk1R1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
K1Br2q1/2P2p2/1N5P/nq1pRq2/1P1Pqr2/B5rn/N1R1kqQ1/5n1b b - - 0 1 legal: proof: g4 b5 f4 h5 b4 hxg4 f5 a5 a3 axb4 f6 b3 Kf2 b2 Ke1 b4 Bh3 b3 Nf3 exf6 Bg2 f5 Ng1 f4 Bf1 Bb4 axb4 c5 d3 c4 Bd2 c3 Na3 b1N Qc1 Qb6 Nb5 Qd8 Qb2 cxb2 Na3 Nc3 Ra2 Na4 Kf2 Ke7 c4 Ke6 e4 Ke5 h4 Kd4 h5 b1Q c5 g5 c6 g3+ Kf3 g4+ Ke2 b2 c7 g2 e5 g3 Kf3 Nc5 e6 Ne7 Nh3 g1R Rh2 g2 Rh1 Nbc6 Be2 Nd5 e7 Bb7 e8Q Ne3 Nc4 Na5+ Kf2 f3 Nf4 Ne6 Bc1 Ng5 Nb6 Nf1 Qg8 d6 Qg6 Qg8 Nfd5 Rd8 Nc3 Qc2 Rh3 b1Q Ba3 Qa4 Rh2 Qb5 Rc2 Rh6 Qg7+ Rf6 h6 Ba8 Qg6 Rf4 Rh5 Be4 Na2 d5 Bd1 Nh3+ Ke1 Ke3 Re5 Rh1 d4 g1Q Qg2 Qb2 Be2 Qf2+ Kd1 Rg1 Bc4 Qc3 Kc1 Qce1+ Kb2 Qd7 Bb5 Qf5 Bd7 Qee2 Bc8 Qb5 Qh1 Rg3 Qh2 Qfe2 Qg2 f2 Kc3 Nh2 Kb2 f1Q Kc3 Qff2 Kb2 Nc4+ Kc3 Nf1 Kb3 Qc5 Ka4 Na5 Rb2 Qe7 Rc2 Kd3 Kb5 Qh4 Qg1 Bh1 Ka6 Qe7 Ka7 Qed7 Re8 Qee4 Ka8 Qb5 Qg2 Ke3 Re5 Kd3 Rc4 Ke2 Rc2+
RkN2b2/2rp2b1/1Kp1P1q1/2P5/1prbR3/1p2P3/2BBbpPQ/3bNn2 b - - 0 1 illegal: No proof kernel
3q1rr1/3b1R1q/1N1rP3/K6Q/2B1P1nB/RbN2qbP/3r1bPb/1n2k1r1 b - - 0 1 illegal: Other
qBr2bBr/3Pkn2/r1NN3q/1P1P4/4bq2/RnK1nPnb/4q2Q/1R3n2 b - - 0 1 illegal: Other
B1Nr2b1/3nq3/1rP4P/n3R1P1/1B1r1nK1/n1kP2N1/1bnn1R2/1bQ2nr1 b - - 0 1 illegal: No proof kernel
2rn4/1PRqrqbq/N2B1nBQ/nRPP4/bbbn3P/3qq2k/4N3/K7 b - - 0 1 illegal: No proof kernel
Nk1Rb1qb/bB3nqQ/K2PbBpn/2br4/N2bP3/3P3P/2n1r2r/4R3 b - - 0 1 illegal: Other
qN1KbQ1n/7P/1r1pq2n/2P1kn2/P2P1Nq1/2b2br1/1B1qR1B1/2R2qb1 b - - 0 1 illegal: No possible last move
1K2b1b1/N4P2/1Bqp1P2/R3q1Pn/BbN2nnn/6r1/2r2R1P/1Qkbqn2 b - - 0 1 illegal: Other
1Q5N/nKP2P1q/3RnRPb/5r2/1P1N1nBB/3qr2b/1q1n3p/r2n1q1k b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 gxh4 Ke2 fxe6 Kd2 e5 Ke1 e4 Ke2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 e5 c3 a5 g5 d3+ Ke3 a3 g6 a2 f6 d2 Bg2 a4 Qe2 d1N+ Kd2 a3 Bh3 e3+ Kd3 e4+ Kc2 Ne7 Kb3 Nec6 Qf3 e2 Bb2 e1N Qg4 e3 Bg2+ Nf3 Bh3 e2 Bc1 e1N Bg2 h3 Bf1 h4 Bb2 h2 Be2 h3 Qh5+ Ke4 Kc4 d5+ Kb5 d4 c4 d3 c5 d2 Bc3 Ncd4+ Kc4 Ng2 c6 Ne6 Kb5 Qd3+ Kb6 Ra5 c7 Nc6 Qb5 Ngf4 Qc5 Bh6 Bb2 Re8 Qb5 Na7 Nc3+ Ke3 Bc1 Kf2 Ne4+ Kg2 Ng5 Re7 Rb1 a1R Nf7 a2 Nh8 Bd7 f7 Re8 Qh5 Rf5 Kb7 Rg5 Rb2 Nd8+ Kb8 Nc3 Ka8 Nfd5 Rc2 d1Q Qh4 Qb5 Qh5 Bg7 Rb2 Rb1 Qh4 a1Q Rb3 Qb2 Qh7 Ra1 Ra3 Qbd3 Bf4 Re3 Ra6 Nd2 Rd6 Bg4 Qh5 Ne6 Rd7 Qe1 Qh7 Nd1 Nf3 Bf5 Rf1 h1Q Kb7 h2 Qg8 Bh3 Qf8 Qh4 Nd4 Qh7 Qb8 Bh6 Bg3 Rge5 Rf5 Ndf4 Rd6 Qf1 Bh4 Kh1 Rf6 Rf5 Bg4
RK4Nb/2p5/1P2QNbr/2BPb2b/3nrk2/R1q2Bb1/n2qPP1q/3n3q b - - 0 1 illegal: No proof kernel
3nR3/1P4Nk/3qb1Nb/1BQn2p1/R1K1nP1n/bPB3q1/n1bP4/4q1rr b - - 0 1 illegal: Other
1q5r/P1n1b2q/N2q1r2/1rnBBk1b/2KP1PrQ/q4p2/3R1PN1/3rR1n1 b - - 0 1 illegal: Other
nbn1KBR1/3Pn1q1/n3pb1R/b3Q3/P1n1N3/Pb2Pr2/4bb2/B1rNk3 b - - 0 1 illegal: Other
1n1k3b/2nrp2P/qB3N2/3R4/nN2b1R1/q3Q1rP/P1r1PBnq/K1b2r2 b - - 0 1 illegal: Other
1nb1Q3/2b1nb1K/P4r1P/1B2b3/3R1n2/rB1PpbqN/bn2P2R/2N1rk2 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 f5 h6 g5 g6 Bb2 gxf5 g6 f4 Bf6 Qd6 Bh4 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 f5+ Ke5 b5 a4 b3 a5 g4 g7 b4 h5 g3 h6 f3 Ra3 c3 Nh3 f2 Kf4 Kd4 Kg5 e5+ Kg6 c5 Ra2 f4 Rb2 e4 Ng1 c2 Nh3 c1B Rh2 f3 Ng5 g2 Ra2 g1N Qc2 b2 Rh3 c4 Rh4 c3 Rh3 b3 Ra3 Qd6+ Kh5 Ne7 g8B Bg7 Rh2 Nh3 Qd1 c2 Qe1 Qg3 Nh7 Be5 Bf7 Rf8 Bd5 Rf6 Nc3 b1B Ra2 b2 Ra3 Ba2 Rg2 b1B Bb7 Bc4 Qd1 Bba2 Ba6 Bg8 Nf8 Bgf7+ Ng6 Bb2 Qa1 c1N Bb5 Bc7 Rh2 Nd3 Bg2 f1R Rb3 f2 Rb4+ Bfc4 Bh1 Re1 Nf4 f1B Qc1 e3 Bd5 Bg2 Qc2 Ba1 Qa4 Nb2 d3 Ke5 Be6 Bcb3 Rd4 Be4 Nb1 Ra6 Nd2 Bf3+ Bg4 Bg8 Nb3 Ra7 Nc1 Bge6 Nd5 Nf4+ Kg5 Bf7 a6 Rb7 Bd7 Rb3 Bb5 Ng2 Nf4 Ra3 Nh3 Nf4 Bc4 Bb6 Qe8 Ba5 Rd8 Bc7 Bd5 Kd4 Bb3+ Kc3 Rd6 Kd2 Rd4 Rd1 Rd5 Ke1 Rd4 Qf2 Bd7 Kf1 Bb5 Re1 Qd7 Rd6 Qe6 Qg3+ Kf6 Nfg6 Kg7 Nf4+ Qg6 Rf6 Kh7 Be8 Kg7 Nc4 Rd7 Bae5 Kh7 Nb2 Qg8 Beh5 Qe8 Bf7 Rd4
1N1b1q2/2R2r2/1r1b2Nb/3qk2R/PQ4B1/P1PbB3/2p2rnP/1r2bbnK b - - 0 1 illegal: Other
1rR1R3/b1Pr4/b3p3/r1B1Pnkq/1P5b/q1bPNrQB/1b2b3/4NnK1 b - - 0 1 illegal: No proof kernel
4n3/rkp1BbQ1/1P1bN1PK/q6B/2rR2N1/3nPP1n/2np4/2nnb1nR b - - 0 1 illegal: No proof kernel
b4Q1K/1R1N2P1/q1q2b1P/1P2r1qk/B4p1r/2Pp1nR1/1N3n2/q1B1bqq1 b - - 0 1 illegal: No proof kernel
NR1qn3/3bP1RK/rPBp4/b3n3/1qPp1B2/3P1Q1b/1b6/rkNnbb2 b - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 a5 e5 c3 exf4 a6 bxa6 Qc2 a5 Qd3 a4 Qd4 cxd4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 Kb3 e4 Kc2 g4 h5 e5 a5 d3 f3 c4 h3 e6 h4 g5 h2 b5 f2 b6 a3 g6 a2 g7 h3 Bb2 a4 Bc3 a3 Bb2 Nf6 g8Q Ra6 Qg5 Nc6 Nd2 Ne5 Ngf3 Ne8 Rd1 a1B Ne4 a2 Qf4 Bb4 e7 d6+ Kg5 f5 Nh4 Be1 Ba3 Bac3 Bc5 a1B Ba3 Ba5 Nf6 Bb2 Nf3 Bd7 Bg2 f1B Nd2 Rh4 Qe4 f4 Nd5 f3 Nc7 f2 Na8 Rh6 Rg1 h1N Ra1 h2 Nb3 Rh8 Ra2 Kb1 Nc1 Rf8 Bf3 Bfh3 Kh6 f1B Rg7 Nf2 Kh7 h1Q Qg4 Rf4 Bc6 Nd1 Qf3 Rg4 Bb4 Rg1 Bd2 Qh2 Bf4 Qd2 Rf7 Qb4 Rf8 Ba3 Rg2 Bb2 Rgg8 Rg2 Rg4 Rc2 Rg1 Rc3 Rfg8 Ra3 R1g7 Ra1 Bg5 Qb8 Bd2 Nc7 Rc8 Ne8 Bf4 Qc7 Rb8 Qc8 Ba4 Qd8 Bc6
1b1NR1r1/1rRBprn1/Q1bq1bP1/2N2r2/1Pr1nbn1/5K2/1P3Ppk/B7 b - - 0 1 illegal: Other
1N2Rk1b/4q3/nr3P2/1pPbbP2/n4pBB/nnPr2r1/N1R5/Q4Kbq b - - 0 1 illegal: Other
3Q1b1b/P2P1nR1/4nN1q/p1P1k2b/r3B1q1/NK2P1qp/1R1r1qr1/1rB5 b - - 0 1 illegal: No proof kernel
rnNR4/1B6/rPb2Bnn/7k/Np1P3b/p2nb2n/K1P1P1Qp/R1q2r2 b - - 0 1 illegal: No proof kernel
KR3rB1/Pn1n1pP1/2B2Pp1/NknP3n/1qp1nr2/4Q2b/1b1q2b1/2N4R b - - 0 1 illegal: No possible last move
q3RnQ1/1b4q1/B2K2N1/P1RPP1b1/4ppr1/Pb4b1/1q1pn1rN/2rk2B1 b - - 0 1 illegal: Other
rRB2b2/5np1/1P4r1/pb2B3/1PnnPK1p/1N1kP3/1bQ1R3/qN3nqr b - - 0 1 illegal: Other
b3bK2/2q1p1Pq/bQ4PR/q4Bn1/4N3/1PPpNRp1/2rB1r1n/2n1b1k1 b - - 0 1 illegal: Other
1nk5/1qbPnK2/R1prr3/2r4p/PNP1B2P/qp2q2r/1NB2Qb1/4R2n b - - 0 1 illegal: No possible last move
1B4r1/Q1Bp1n2/qRbb3N/P1bknq2/1p4r1/1P2n1PP/2R2pN1/2r1n2K b - - 0 1 illegal: No proof kernel
q1q1R3/p5B1/PP3b2/Kp4nq/p2nN3/rbBb2k1/1nbPPrN1/1QR5 b - - 0 1 illegal: No proof kernel
1n1rQ3/1P2qB1N/1b1p2rr/3kPP2/2p1b1Bp/K1nP1nR1/1Rr2N2/2r2r2 b - - 0 1 illegal: No possible last move
1b1b4/2npq1bp/1KRbrk1P/1PB3b1/3Qq3/1rN2RnP/3P3p/1B1b2N1 b - - 0 1 illegal: Other
2N1bKB1/b3B1p1/1b1n4/qnk1P3/1P1np1Pq/bnp2N2/R3P2r/2rRQ3 b - - 0 1 illegal: Other
R1Bn3b/3n2p1/2bN2pN/5rp1/3n1RPr/PBqP2Kn/2Pqb1p1/1Q2k3 b - - 0 1 illegal: Other
nb1N4/1k2KP1r/2B4b/Qq1p3n/BPpn1N2/r1P1p2p/5n1P/1b2R1bR b - - 0 1 illegal: No possible last move
1K1B1k2/n1rbPP2/p2q4/bp1R1Pr1/N1PQ4/1Nn1q1pp/1R5p/qB1b4 b - - 0 1 illegal: Other
8/nr3R2/bP2kP1K/1rRN2pn/1P2q1Q1/2rqB1Pn/3qBB2/q1q5 b - - 0 1 legal: proof: d4 f5 b4 a5 c4 h5 e4 fxe4 c5 a4 d5 h4 g3 e6 Qf3 h3 Qg2 hxg2 Nd2 b5 cxb6 c6 Nb3 cxd5 b5 axb3 a3 Bb4+ axb4 d4 Kd2 Ke7 f4 g5 h4 d5 h5 e3+ Ke2 b2 Kf3 b1R Kg4 e2 f5 e1Q b7 e5 h6 e4 Kh5 d3 b6 d2 h7 d1Q+ Kg6 d4 Be3 d3 Bd2 e3 Bc1 d2 Bb2 e2 Bc3 Qd3 Ra7 Rc1 Rh2 Nf6 Rh4 Nc6 Kh6 Nh5 f6+ Ke6 b8B Ba6 Bbe5 Rhb8 h8Q Rb7 Nh3 g1N Bcd4 Rc3 Be3 Qc1 Rc4 d1Q Rc5 Qed2 B5d4 e1Q Be2 Qa4 Bf2 Qaa1 Bde3 Rd8 Qh7 Rd5 Qe4+ Re5 Qg4+ Rf5 Ra8 Na7 Rg8 Qdb1 Rf8 Qbd3 Bd1 Qee2 Rf7 Qf3 Be2 Qfe4 Rc4 Kd6 Rcc7 Rb5 Nf4 Nh3 Nd5 Ke5 Rc5 Kd6 Qf3 Ke6 Qg4+
3Q1R1n/1bKp4/5Pqq/1q5b/P3N2r/1bNqrkP1/4p1P1/1B1nR1R1 b - - 0 1 illegal: Other
4nKR1/r1Qpn3/8/Pr1r1PB1/r3n2k/B4P2/RPNp1nB1/nbq5 b - - 0 1 legal: proof: d4 c5 g4 cxd4 c4 h5 c5 hxg4 c6 bxc6 Qc2 c5 Qa4 c4 Qxa7 f5 e3 e6 Nc3 Bd6 Ne4 Bf4 exf4 fxe4 Kd2 Kf7 h4 Kg6 a4 Kh5 f5 g5 a5 e3+ Kc2 d3+ Kc3 g3 Kd4 e2 Ke5 e1N Kd6 g2 f3 e5 Ra3 e4 Ra2 g4 Nh3 g1N Be3 d2 Nf2 g3 Ng4 c3 Qb6 c2 Ra1 c1R Ne5 g2 Ra2 Ne2 Nf7 g1N Qb7 Rc5 Bh6 e3 Qb5 Nc2 Qa6 Bb7 Ra3 Ra7 Rc3 Nf6 Bg2 Qc7+ Ke7 Rd5 Qb6 Nh3 Nd8 Na1 Nc6 Ne8 Bg5 Nf2 Nd4 Ng3 Rg1 e2 Ra3 Nge4 Ra2 e1R Nc2 Nc6+ Kf7 Rh6 Kf8 Ne7 Qd6 Qc3 Qg3 Rb6 Qc7 Ng8 Be7 Rbb5 Bd6 Ne7 Ba3 Kh6 h5 Kg5 h6 Kh4 h7 Qc4 Nb4 Qc1 h8B Re3 Bc3 Red3 Be5 R3d4 Nc2 Ra4 Bf4 Ba6 Qc5 Rb6 Qc7 Bd3 Bf1 Rbb5 Rg8 Qe1 Bg2 Qc1 Nd4 Bb1 Nc2 Qg1 Be3 Qc1 Bg5+
1B1q4/1Rnp2n1/1Nb1Pn1P/1kp2Pp1/1P2nn2/1R5q/1K1Bbr1R/3Q4 b - - 0 1 legal: proof: b4 h5 d4 a5 g4 hxg4 a4 b5 c3 bxa4 c4 Ra7 Nd2 Rb7 Nb1 Rb5 cxb5 Bb7 Nd2 Ba6 Nb1 Bc8 e4 c6 d5 e6 Bc4 Bd6 Nc3 Bc7 d6 f5 dxc7 Rh4 e5 Rh8 Bd5 exd5 Ne4 fxe4 Kd2 g5 Kc3 g3 f4 d4+ Kb2 e3 h4 c5 b6 a3+ Kb3 a4+ Kc2 d3+ Kc3 d2 b7 e2 f5 e1N h5 g2 e6 a2 Kb2 a3+ Kc3 Na6 b8B Ke7 Ne2 Kd6 Rh2 Kc6 Ng1 Nd3 Nf3 g1N Rh4 Bb7 c8R+ Kb5 Rf4 Bc6 Nh2 Nc7 Re4 Nh3 Nf3 Ndf4 Kb3 Nf6 Qe1 d1B+ Kc3 Be2 Rb1 a1Q+ Rb2 a2 Nd2 Qb1 Rb3 a1N Re5 Qd3+ Kb2 Qg3 Qd1 Qg2 Rc3 Nb3 Nc4 Nd2 Rb3 Nde4 h6 N4h5 Nb6 Ng7 Rd5 Nf4 Rd2 Qh3 Rc2 Rf8 Bd2 Ncd5 Ka1 Qe8 Rc7 Bh5 Be1 Rh8 Ra7 Nc7 Rb7 Qe7 Ba7 Ra8 Re2 Qd8 Rh2 Bg4 Kb1 Bf3 Bb8 Ra2 Bc3 Rf2 Bd2 Be2 Kb2
1NbKnnkq/2nQ3r/r1qP2Pb/1P1R1bN1/1rr5/2NBr2P/4q3/1B6 b - - 0 1 legal: proof: b4 b5 c4 h5 f4 g5 g4 gxf4 a4 bxa4 Bb2 d5 cxd5 h4 Bf6 exf6 Ra3 f5 Rg3 hxg3 e4 a5 Ke2 c5 Kf3 g2 d4 a3 e5 a4 g5 a2 b5 a1R g6 a3 d6 c4 h3 a2 e6 c3 d5 c2 e7 c1R Qd4 Rh7 Qg7 Qb6 Na3 Rab1 Qe5 a1Q Bc4 Bh6 Qh8 Ra6 Ne2 g1R Rh2 Rb4 Nc2 Rge1 Qd4 Qc6 Rh1 Nd7 Bb3 Ngf6 Qb2 Nf8 Ncd4 Rcc4 Nc3 Re3+ Kg2 f3+ Kg3 f2+ Kh4 f1Q Bc2 f4 Ne6 Qfd1 Bb1 Qe2 Rd1 f3+ Rd4 f2 Ng5 f1B Qd2 Bg2 Qd3 Be4 Qd1 Kd7 e8B+ Kd8 d7 Ke7 d8N Bef5 Bd7 Ne8 d6+ Kf6 Qg1 Kg7 Qg4 Kg8 Rd5 Qab2 Na4 Qh8 Nc3 Bd3 Kh5 f5 Kh4 f4 Bf5 Bc2 Bd3 f3 Kh5 f2 Kh4 Qc7 Nc6 f1N Nb8 Qc6 Kh5 Nc7 Kh4 Nd2 Kh5 Ne4 Kh4 Rg3 Qd7 Rf3 Kg4 Re3+ Kf5 Nf6 Na2 Nh5 Nc3 Ng7+ Kf6 Rg4 Ne6 Rgc4 Ke7 Nge8+ Kd8 Qe5 Ng5 Qh8 Be4 Bd3 Bh1 Bf5 Bhe4 Rb3 Bec2 Rbb4 Bd3
2K1QN2/4r2N/1Pnq1bbq/4N1Bb/4q1P1/P1B2r1n/3nkbnP/R2r4 b - - 0 1 legal: proof: c4 a5 e4 d5 b4 dxe4 a3 b5 g3 bxc4 b5 g5 f4 h5 fxg5 h4 Bg2 h3 Ra2 hxg2 Rb2 Ba6 Rb3 Bc8 Rb4 axb4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Ke3 Kc5 g6 f5 d3 c3 g7 c2 b6 f4+ Ke2 Kd4 Qf1 c5 Qd1 b3 Kd2 b2 Qf1 e3+ Ke2 f3+ Ke1 e4 Nh3 g1N Bd2 c1B Kd1 f2 Kc2 c4 Qd1 f1R Bb4 e2 Nf2 Ke3 Kc3 e1N d4 Bg4 d5 Bh5 g4 Be7 d6 Nh3 d7 Nc6 Qb3 Nf6 g8N Ke2 Qa4 e3 Bd6 Rh7 Bc7 Ng2 Nd3 Rf3 Nd2 b1B Nc5 Bbg6 Be5 Ra7 Ne6 Ne4+ Kc2 c3 Kb3 c2 Kc4 Rc7 Kd5 Bf6 Nf8 Re7 Nc4 Nd2 Kd6 Bb2 Rc1 Bd4 Ra1 c1Q Qa8 Qb8 d8B Red7+ Ke6 Bc5 Bc3 Rd3 Nd6 Bcd4 Nc4 Re7+ Kd5 Qf4 Ne5 Qh6 Kd6 Qe1 Nfd7 Qg3 Kc7 Bc5 Kc8 Qgf4 Nc4 Qd6 Nce5 Bg5 Ngf6 Re8 Ra2 Ke1 Bb4 e2 Qa6 Rb3 Nh7 Bf2 Ndf8 Rb1 Ned7 Rd1 Ra1 Kf1 Bc3 Be7 Qa8 e1Q Kb7 Qe4 Ne5 Ke2 Qc8 Bg5 Bf6 Re6 Qe8 Re7+ Kc8 Bf4 Nd3 Be5 Bg5 Bf6 Ne5
K1R2nR1/P4Q2/n1nN3b/r1R5/4PBPk/nb1r1qqq/rP2b3/2q3N1 b - - 0 1 legal: proof: f4 b5 h4 e5 d4 exf4 d5 g5 d6 gxh4 Kf2 cxd6 Ke1 d5 Qd2 d4 Qd3 Qf6 Qd1 Qd8 a4 Qb6 e3 Qc6 a5 Qb6 Bc4 Qc7 Bb3 Qd8 Ba4 bxa4 Nc3 Bd6 Nb5 Ba3 Nxa7 Bf8 Ke2 Ke7 Kd3 Kf6 Kc4 Kg5 Kb5 d5 g4 h5 c4 f5 c5 f3 e4+ f4 c6 f2 c7 f1Q+ Kb6 a3 a6 a2 Qe2 d3 Qd1 d2 Qa4 d1R Rh3 d4 Qb4 d3 Qa3 d2 Nb5 f3 Qa4 f2 Qd4 Nf6 Rd3 h3 Ne2 h4 Nf4 h2 Rb3 h1N Nd3 h3 Nd6 h2 Qc3 Nh7 Qg7+ Kh4 Nb5 Be6 Kb7 Qh3 c8R f1Q Na3 Nf2 Rb4 h1Q Qe5 Nc6 Qc7 Bb3 Nc2 Qd6 Qf7 Qdg3 Ne5 Nd3 Na3 Nc5+ Kc7 Rg8 Rd8 Rg5 Rbb8 Bh6 Rb1 a1N Rbc8 Nc2 Rg8 Nf8 Nc4 Qe2 Nd6 Rf5 Nd3 Qef3 Nf4 Rd5 Ra1 Rd3 Ra5 Na3 Ra4 Re1 Rc4 Ra7+ Kb6 Q1f1 Ne2 Qfg1 Qg6 Qge3 Qg7 d1B Ng1 Be2 Qf7 Qd2 Rc3 Qg5 Be3 Q5f4 Rc2 Rb1 Rc4 Ra1 Bc1 Qd2 Rc3 Qde1 Bf4 Ra2 Rc2 Qc1 Rc3 Re7 a7 Re5 Rc4 Na6 Kb7 Rg5 Ka8 Ra5 Rc5
qN2Kb1k/R1P5/2R2Nr1/n3p2q/2q1nPB1/Q2P1P2/N3r3/2qrn1bq b - - 0 1 illegal: No proof kernel
k4b1K/qbbqB3/rQ6/q2N1Pn1/2bn4/1p4NB/2rqP1PP/q5RB b - - 0 1 illegal: Other
N2R4/r1PP4/q3kqq1/bB1q1Ppn/1P2N3/Kn1N1q2/3b2rb/R1Q4b b - - 0 1 legal: proof: g4 c5 e4 f5 a3 fxe4 g5 b5 g6 b4 axb4 hxg6 Ba6 g5 Bf1 g4 b3 d6 Bb2 Rh7 Bd4 c4 Bc5 cxb3 c4 Rh6 Be3 Qa5 c5 Rh8 c6 Qd8 Bc5 dxc5 h4 Kf7 d4 a5 Kd2 g5 Kc3 e5 Kb2 e3 f4 a4 d5 e2 h5 e1B d6 g3 h6 c4 c7 g2 h7 c3+ Ka3 e4 d7 c2 Nc3 b2 Qb1 c1Q Rh5 e3 Bb5 e2 Ra2 Na6 Rh2 Qd1 Bd3 Nc5 Qc1 b1Q Rh6 Ra7 Rh3 Ke6 Qb2 Nb3 Rh6+ Qf6 Rg6 Bc5 Qc1 Bb7 Nb5 Bb6 Nf3 g1B Nh4 Bh1 Nc3 Bd2 Rh6 e1Q Ng2 Qf3 Ra1 Qee4 Ne1 Bh2 Nd5 Ba5 Nb6 Qd5 Bb5 Qbd3 Na8 Qdg6 Ka2 a3 Nd3 Ne7 Rh5 Nf5 Rh6 Re8 h8N Ng3 Nf7 Nh5 Rh8 Re7 Nd6 Rh7 Kb1 a2+ Kc2 Rh6 Rd8 Rh7 Rb1 a1Q Ne4 Qa4 Ra1 Rh6 Bc4 Qc6 Kb1 Qa6 Ka2 Ng7 Bb5 Rh3 Rg8 Rg3 Rd8 Rg2 Ka3 Nh5 f5+
1nb3k1/2N4n/1K6/3qrp1b/Bn2qNPQ/2PPr1RN/pP2R1q1/r5b1 b - - 0 1 legal: proof: e4 c5 h4 b5 f4 g5 a4 gxh4 axb5 d5 f5 dxe4 d3 c4 f6 c3 Bd2 cxd2+ Kf2 exf6 Ke3 f5 Ke2 f4 g3 a5 c3 f5 b6 Kf7 b7 h5 Nh3 a4 Rg1 e3 Bg2 a3 Qf1 d1B+ Ke1 a2 Nf2 h3 Be4 e2 Kd2 e1N Na3 f3 Ke3 h4 Nb1 h2 Qh3 h1R Nd2 Ra5 Rb1 Bc5+ Kf4 Nf6 Ke5 Kg8 Nf1 Nh7 Bc6 Nc2 Ne3 Nb4 Nd5 Be3 Qh2 h3 Ba4 Qh4 Kd6 Qe4 Nf4 Re5 Kc7 Bc5 Qg2 h2 N2h3 f2 Qf1 Bh5 g4 Be3 Qe1 f1Q Qh4 Qfg2 Rbe1 Qd5 Re2 Qge4 Rgg2 Ra1 Rg3 h1Q Re1 Bg1 Re2 N8c6 b8N Qhg2 Na6 Nb8 Ng5 Kg7 Ngh3 Rhe8 Rf2 Kg8 Kb6 Qe1 Nc7 Re3 Rc2 R8e5 Rd2 Qee2 Rc2 Qge4 Rd2 Q2g2 Re2
r1R2q2/r5B1/1P1PqRK1/b2b4/npP3nP/QpR1N3/r1N5/b2r2nk b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 Nh3 exf4 Rg1 c5 Rh1 cxb4 Ng1 b3 c3 d5 e3 d4 Bb2 b4 Bd3 Qd7 Bc2 d3 Bc1 Qb5 axb5 dxc2 Kf2 Kd7 h4 Ke6 d4 Kd5 c4+ Ke4 d5 g5 d6 a5 Nf3 f5 Qg1 g3+ Kg2 a4 Kh3 g4+ Kg2 a3 Ne1 f3+ Kf1 g2+ Kf2 f4 Bd2 c1R Qf1 g1N Qg2 g3+ Kf1 a2 Rh3 Nh6 Rh2 Be7 Qf2 Rd1 Qg2 Bb7 Qe2 f2 Kg2 f1R Rh3 Na6 Bc1 Ra7 Bb2 Rha8 Nc2 Bd5 Nba3 Ng4 Bg7 Bd8 Qe1 Ba5 b6 Nc5 Rc1 Kd3+ e4 a1B Ne3 Na4 Nac2 Rf3 e5 Ke4 e6 Rf2+ Kh1 Kf3 e7 Re2 e8R Rg2 Qc3 Kf2 Qb2 f3 Nf5 Kf1 Qa3 Rd2 Rh2 f2+ Rg2 Re2 Rc8 Rd2 Ncd4 Ra2 Nc2 Ke2 Nfe3 Kf3 Rh2 f1Q Rg2 Ne5 Rd2 g2+ Kh2 Qe2 Rd3 Kf2 Rb1 Qg4 Rc3 Qe6 Nf5 Kf1 Kg3 Ng4 Kf4 Kf2 Kg5 Kf1 Rc5 Kf2 Nfe3 Kg3 Nf5+ Kh2 Rc8 Kh1 Nfe3 Ne2 Rc5 g1Q Rc8 Qf2 Rb2 Qf8 Kh5 Qee7 Kg6 Ng1 Rb1 Rd3 Re1 Rd1 Rf1 Qe6+ Rf6
K1bqBq2/1NNP2n1/5bnb/1Rrp2P1/1P3q1P/1R1N3n/2kp2Q1/5br1 b - - 0 1 legal: proof: d4 b5 g4 g5 f4 gxf4 a4 bxa4 e4 c5 e5 h5 Be3 h4 Bf2 cxd4 Bg3 hxg3 Nc3 d5 Nb1 Qd6 exd6 Kd8 Bc4 Kd7 Bf1 Ke8 Kd2 Bd7 Kd3 f5 b4 Kf7 c4 Ke6 h4 Ke5 g5 a5 c5 f3 c6 f4 c7 g2 c8N a3 Qd2 f2 Ra2 a4 Nb6 f3 Qc1 Bh6 Nh3 g1N Nc8 Nc6 Rh2 Nf6 Ra1 a2 Be2 f1Q Nb6 a3 Qc4 f2 Qb5 Rhc8 Nd2 Ne8 Nb1 Ng7 Nf4 Nh3 Kd2 Ke4 Ne6 d3 Kc3 Ne5+ Kb3 Ng6 Bd1 Rc5 Nc4 Bc8 Nf4 e5 Na5 Ke3 Ka4 e4 Rh1 d2 Nc3 Kd4 Qa6 e3 Nb7 e2 Nb5+ Ke4 Ka5 e1Q Kb6 Qe3 Rb1 a1B Ba4 a2 Rb3 Be5 Rg1 a1Q Rh1 Qb2 Nc7 Bd4 Bc6 Qf3 Qb5 Ra1 Be8 Rd1 Ka7 Qa3+ Na6 Qa5 d7 Qd8 Nc7 Qc4 Ka8 Bc3 Nfe6 Kd3 Nf4+ Kc2 Rf1 Qd4 Qe2 Ba1 Nd3 Qf8 Qf3 Qdf4 Qg2 Bf6 Re1 Rb1 Re6 Rg1 Rb6 f1B Rb5
rN2R3/Rqr2PPp/1n1PkB2/bq3R2/1pbr1bB1/P2b1Q2/1K6/1n5r b - - 0 1 legal: proof: c4 f5 b4 a5 h4 axb4 e4 fxe4 a3 d5 cxd5 g5 Nc3 gxh4 Na2 b3 Ba6 bxa2 Bc4 Ra4 Bf1 Ra8 g4 Kd7 d4 c5 Kd2 e5 Kc3 b5 f4 h3 f5 h2 f6 c4 f7 e3 g5 e4 d6 e2 d5 e1Q+ Kb2 c3+ Kb3 e3 g6 e2 g7 c2 Bb2 c1R Nf3 Rc7 Qc2 Ba6 Qe4 Qe7 Qc2 Qb1 Qc5 e1B Bg2 Ba5 Rf1 h1B Ne1 Nf6 Bf3 Ne4 Nd3 Nc3 Bh5 Be4 Nb4 Bd3 Nc6 b4 Rf3 Qf1 Qf2 Nb1 Bf6 Bac4+ Kb2 Qe4 Qe3 Be7 Qe2 Rd8 Rf5 Qeg2 Bg4 Qgf3 Bd4 Bg5 Bf6 Bf4 Qf2 Q1d1 Qf1 Qa4 Qh3 Qh1 Qf1 Qb5 Qf3 Nd2 Re1 a1R Re8 Rd1 Qg3 Nb1 Qh3 Qe4 Qf3 Rh1 Re7+ Kc8 Re8 Nd7 Nb8 Nb6 Re7 Rb7 d7+ Kc7 Ree5 Kd6 Re8 Rc7 Re7 Qe3 Re8 Qec5 Re7 Qcc6 Re8 Qb7 Re7 Rdc8 d8R+ Rd7 Rde8 Rcc7 Re3 Re7 Re2 Re4 Re1 Rd4 R1e7 Rc5 Rc7 Rc6 Rce7 Rc7 Re6+ Kc5 Bg5 Nc8 Ra6 Nb6 Ra7 Kd6 Bf6 Re7 Nc6 Kd7 d6 Ke6 Rg8 Rd7 Nb8 Rc7 Re8+
2K1n2N/4PQ2/3P1N1P/Prpnpr2/2b3N1/rp4B1/1knq1B2/rRr1b3 b - - 0 1 illegal: No possible last move
r5Qn/1B1Np3/1PPB4/k2Pb3/5pR1/p3n1bK/rRRrqrrP/1b6 b - - 0 1 legal: proof: b4 c5 a4 b5 e4 d5 g4 dxe4 f3 exf3 Nc3 h5 Na2 hxg4 axb5 Nc6 b6 Nb8 b5 Rh3 Nb4 cxb4 Ra4 Rh4 Ra1 Rh8 Kf2 Kd7 Kg3 g5 c4 a5 d4 Ra6 b7 Kc7 c5 f5 c6 Kb6 Qe2 a4 Qd2 f4+ Kf2 b3 Ra2 b2 Ra1 b1R Qe3 g3+ Ke1 g2 Kf2 g4 Qe2 g3+ Ke1 f2+ Kd2 Rb2+ Kd3 Bf5+ Qe4 Nd7 Be3 Bg7 Rb1 Ne5+ Kc3 Ng4 Kd3 N8h6 Rc1 Nf7 Nf3 g1B Ne5 g2 Be2 a3 b8R+ Ka5 b6 Qd5 Rg8 f1R Rc4 Qb5 d5 Ra2 Bc5 Ra8 Nd7 Bf2 Bd6 Be5 Rg7 Bh7 Qg6 g1R Ke4 Ne3 Kf3 Rhg8 Rb4 Rd1 Rb2 Rd2 Qg4 Rga1 Rc1 Nh8 Rc5 Rh1 Rg5 Bb1 Rcc2 Rf1 Rg6 Nf5 Kg2 Ne3+ Kh3 Bh4 Qe6 Rf2 Bf1 Rg7 Qg8 Qd3 Rh6 Rg1 Rg6 Rgg2 Rg4 Bg3 Be2 Qg6 Bb5 Qd3 Ba6 Qe2 Bb7
bn2n2b/q1r2n2/2PrP3/1B3R2/3p2RR/kBpP1Qn1/p1KPr3/5q1N b - - 0 1 illegal: Other
1bqkrb2/2P2p2/1Pbrp1R1/P1Np2r1/q1B1R1r1/P7/rn6/2N2KQR b - - 0 1 illegal: Other
R1b5/Q1ppPPP1/1b1q1b2/k1q1B3/2n2N1n/4Pb2/Brq4p/2nNKN2 b - - 0 1 illegal: No possible last move, all moves rejected
knb1Q2R/2bNR2b/br3p2/qPr1P3/2nr1P2/1q3r2/P4bB1/K1B2n1R b - - 0 1 legal: proof: d4 a5 c4 b5 b4 bxc4 h4 e5 b5 exd4 Na3 g5 Nc2 gxh4 Nb4 axb4 Kd2 d5 Kc2 Kd7 Kb2 c5 g4 Kc7 f4 Kb7 e4 h5 e5 d3 g5 f6 g6 h3 g7 c3+ Kb1 h4 Qd2 h2 Bb2 c4 Bh3 c2+ Kc1 b3 Qf2 d4 Qd2 Ra3 Bc3 Ka8 Kb2 c1B+ Kb1 b2 Bf1 h3 Bb4 c3 Ne2 Ne7 g8R Nd5 Rg2 Bd6 Qc2 d2 Qg6 d1Q Qe8 d3 Ng1 d2 Qe6 Qb3 Qe8 d1R Nf3 Qa5 Rg5 Rd4 Bc5 Ne3 Qd7 Bc7 Be2 Nc4 Rhg1 h1N Qf7 h2 Qe6 Be3 Rh5 Ng3 Nh4 h1B Ng6 Bhb7 Bf1 Bf2 Nf8 Ba6 Nd7 Re8 Qg8 Re6 Rh8 Rb6 Bh3 Nf1 Rg7 Bd8 Be7 Bc7 Bg2+ Re4 Qd8 Ng3 Qf8 Nd6 Rgh7 Qg8 Bf1 Rd4 Kc2 b1B+ Kc1 c2 Kb2 c1R Qe8 Rf3 Bg2 Bd3 Rb1 Qb3+ Ka1 Rcc6 Bf8 Nc4 Rbh1 Nf1 Ba3 Rc5 Re7 Bh7 Bc1
2rnrQ2/8/1P1kqRRK/1B1b1pR1/2rB2N1/b2rnPPb/q2bP2n/2r5 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 a5 gxh4 a6 d3 Nd2 e5 Ndf3 bxa6 Bg5 a5 Nd4 exd4 Bc1 a4 Kd2 Ke7 b4 a5 c4 h5 c5 d5 c6 h3 c7 h2 g3 h4 b5 h3 b6 a3 Bb2 a4 Bc1 a2 Bg2 a3 Bb2 Nh6 Bc1 Ng4 Be4 Qe8 Qb3 Kd6 Bg6 Nc6 Nf3 Qe6 Qc4 Nd8 Rf1 h1R Re1 h2 Rb1 a1B Rb2 a2 Rb1 Bc3+ Kd1 a1Q Bh5 d2 Rb2 Qa2 Kc2 d1R Rf1 Rd3 Qb3 Bd2 Ne5 Rg1 Qa4 h1B Qe8 Nh2 Ng4 Bd7 Kd1 Rc8 Rb5 Rc3 Bg6 d3 Bb2 d4 Rg5 Bd5 Bf5 Be7 Qf8 Rc4 Be4 Ba5 Rg6 d2 Bd3 Bc3 Kc2 d1N Kc1 Ne3 Rg5 Rc6 Bb5 d3 Ba1 Rc4 Bb2 Ra8 c8R f6 Rc5 Rc8 Rg6 Rg8 Qh6 Re8 Qf8 Nf5 Kd1 d2 Kc2 Ba5+ Kd3 Ne3 Bd4 Bb4 f3 Bc3 Rc1 Rf1 Rc2 d1R+ Rd2 Rc1 Rc2 Bd2 Rc3 Bb7 Rcg5 Rfd1 Rc2 Rb4 Rcc5 Rbc4 Rcf5 Bd5 Rf4 Qf7 Nf2 Bh3 Ng4 Be6 Ke4 Qg8 Rff5 Bd5+ Kf4 Qf7 Rh5 Qe6 Rfg5 f5 Rhh6 Be1 Rf6 Rd3 Rhg6 Bd2 Rh5 Bb7 Kg5 Ba8 Kh6 Bd5 Ba6 Kd7 Rhg5 Ba3 Qf7+ Kc6 Bb5+ Kd6 Qf8+
2n2r2/pnn1BB2/B1Rb3k/3nn1Pn/2r1QNrP/5bqn/PrP5/K5N1 b - - 0 1 illegal: No possible last move
r2b4/r3rNPB/P3n3/1K2pq2/N2q1k2/Qb2P1q1/q1n2BPR/r2B1nb1 b - - 0 1 illegal: Other
5RBB/p1b5/2qPnnNn/P7/QK2N1P1/rPr1nr1q/brk5/4Bqb1 b - - 0 1 legal: proof: c4 d5 f4 b5 e4 bxc4 g4 dxe4 a4 g5 Kf2 gxf4 Ke1 h5 Ra3 h4 Rg3 hxg3 h4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 e5 a5 f5 h5 c5 h6 f3 h7 f4 Rh2 g2 Rh3 f2 Rh2 e3 Rh6 Ke4 d5 e2 Bd2 e1R Qc1 f3 Rh1 Re3+ Kc2 c3 Kb3 c4+ Ka4 c2 Nh3 g1B Be1 c3 Bc4 f1Q Bg3 f2 Ba6 Be6 Qe1 c1R Na3 c2 Nb5 Kd3 Bh4 e4 Be7 Rf3 Ba3 e3 Rh2 e2 Rg2 Nh6 Qb4 e1N Ng5 Bd6 Nh3 Qh4 Qf4 Nd7 Qg5 Bc7 d6 Rab8 Bc8 Ba2 Qf4 Nf6 Bb4 Rb7 Rh2 Ng2 Be1 Rb6 Qb4 Nf4 Nc3 Ne6 Ne4 Ra1 Rg2 c1Q Nf4+ Kc2 Ng6 Qh3 b3 Rc6 Ba6 Rcc3 Bc4 Kb1 Kb5 Re8 h8B Nd4+ Ka4 Rf5 Ne7 Rd3 Ng5 Nd7 Ng6 Re2 Bg7 Rb2 Be5 Qe2 Ba6 f1N Nf7 Ne3 Bh2 Qf1 Rf2 Qc6+ Bb5 Rf4 Ng5 Rc3 Ne4 Rf8 Rf3 Kc2 Be5 Bb1+ Qa3 Rf5 Kb4 Rf4 Qa4 Ra3 Ba6 Ba2 Bc4 Rf6 Bg8 Ne6 Rf5 Rf7 Bh8 Rf8 Rb5 Rf3 Rb8 Nf6 Rf8
Qq1b1R1N/1B3K2/nr1p1n1k/2b1R3/2P3P1/Nb1P1r2/1rRP3b/3rr1rn b - - 0 1 illegal: Other
R1r5/PBpqr3/3P4/1N3P2/1N2R1bK/1Rqr1q2/nbP1bnr1/1qk1b2Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 e5 fxg4 e6 h5 Ba3 h4 Bb2 dxe6 Bd4 e5 Bb2 e4 Be5 Na6 Bf4 Nb8 Bg3 hxg3 h4 Kd7 a4 Kc6 f4 Kd5 d4 b5 h5 g5 h6 e5 h7 g2 Kf2 b3 Kg3 b4 a5 b2 a6 b3 a7 e3 Nh3 Ke4 d5 g1R+ Kh2 e2 d6 Ke3 Ra3 e1R Ra2 e4 Bc4 Bg7 Nc3 b1Q Ra1 b2 Ra3 Qd7 Bd3 Nh6 Nf2 Na6 Rb3 Nb4 Ra3 Na2 Qf3+ Kd2 Nh3 e3 Bc4 e2 Qc6 Kc1 Qe4 Rg3 Ng1 Rd3 Nh3 g3+ Kg2 g4 Qg6 Rg8 h8R Qa1 Qe6 b1B Nd1 Bb2 Rh7 Ba6 Ng5 Rac8 Rf1 Bb5 Nc3 Rg7 Kg1 g2 Kh2 g3+ Kh3 g1Q Nf3 g2 Bd5 Qe3 Rh8 g1Q Rb3 Ng4 Bb7 Nf2+ Kh4 Rg2 Ne5 Qf3 Qd5 Bc4 Qe4 Be6 Nb5 Bg4 Rf8 Qh1+ Kg5 Qh8 Nc6 Qc3 f5 Red1 Qe7 e1B Kh4 R1d2 Qg7 Re2 Qh8 Re7 Rg8 Nb4 Rh1 Ba2 Rh3 Qb1 Rf8 Qe4 Re3 Qf4 Re4 Qf3 Ra3 Bc4 Rb3 Na2 Nb4 Rd1 Kg5 Be2 Qh1 Rd3 Rh8 Rf8 Rg8 Rf6 Rb8 Rf8 Kh4 Rc8 Ra8
q1q1qn1r/P2r2PR/1KB1kbq1/RNP5/1B2np1p/1B4n1/b2Q2qP/3b4 b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 f6 g5 Nc3 g4 Ne4 exf6 Nd2 f5 Ndf3 gxf3 Qd2 f4 Qd3 Qg5 Qd1 Qd8 Kd2 Ke7 Kd3 d5 c4 f5 g4 h5 a4 b5 e4 f2 e5 b3 e6 b2 g5 b1Q+ Qc2 b4 g6 h4 a5 b3 c5 f3 g7 f4 a6 b2 a7 Nf6 Ra2 Qe8 Ra5 Ne4 Ra3 Nd7 Be2 f1Q Ra6 f2 Rc6 Qg2 Rc7 f1N Be3 Nfg3 Nh3 Qbg1 Bf3 b1Q Bd2 Qb7 Bc3 Rb8 Ng5 Qa8 Qd2 Rb7 Bd1 Kf6 Bh5 Be7 Rc6 Nf8 Bb4 Rd7 Nf3 Kf5 Rd6 Bf6 e7 Bb7 Rb6 Bc8 Rb8 Ke6 Bg6 Bb7 Bh7 Qc8 e8B Bc6 Bhg6 Ba4 Bh5 Bb3 Bhg6 Ba2 Bh7 Q1f2 Ra1 Qfg1 Bhg6 Rc7 Ba4 Rd7 Bb3 Qe1 Be8 Qe3+ Kc2 Qeg1 Kb2 d3+ Ka3 Qe1 Ka4 Qb1 Bd1 d4 Ka5 Qc2 Kb6 Qa4 Qe3 d2 Bc2 d1B Qd2 d3 Nd4+ Kd5 Nb5 Ke6 Qc3 d2 Qb2 Rd3 Bc6 Rd7 Qc1 Be2 Qb2 d1Q Bb3+ Qd5 Qd2 Bd1 Bc4 Qc2 Bb3 Qe8 Ba4 Qf5 Bb3+ Qc4 Rc8 Qfg6 Rd8 Rf7 Rd5 Rd7 Rh5 Qd5 Rh7 Qec8 Bc2 Qdh5 Ba4 Qge8 Bc2 Qhg6 Ba4 Bc4 Bb3 Bd5 Ra5 Bc4 Ba4 Ba2 Bb3+
6rq/nq2k1n1/1bb1pr2/B1rQR3/2P1Pr2/1PBr1b1P/1p3n2/1BR1N1K1 b - - 0 1 illegal: No proof kernel
NNb5/P1n2B2/1b1p2QK/3q1RpN/1rqP2rr/1PBq1kP1/7n/3q1q1n b - - 1 2 legal: proof: f4 e5 c4 exf4 b3 b5 Nh3 bxc4 Qc2 a5 Qb2 a4 Ng1 a3 e4 axb2 a4 h5 g3 h4 d3 h3 Be3 Ke7 Na3 Ke8 Rc1 Na6 Rc2 Nb8 Rg2 hxg2 Ke2 Ke7 Kf3 Kf6 Kg4 Ke5 h4 b1Q a5 f5+ Kh3 g5 a6 c5 a7 f3 h5 f4 Kg4 f2 h6 f3 Kh5 c3 h7 c4 Bc1 c2 Bb2+ c3 Rh2 c1R Nh3 g1Q Nc2 Bc5 Ne1 Na6 Ba3 c2 Nf4 Nh6 Bb4 Rb8 Bc3+ Bd4 Kg6 Nc7 Nh5 Ng4 Rh1 Nh2 Kh6 Rb4 Bh3 f1Q Be6 f2 Bf7 Qgg2 Rg1 Qe2 Rh1 f1Q Nf3+ Kd6 Ne5 Bb6 Nc6 Rd1 Bd5 c1N e5+ Kc5 Bf7 Qd5 e6 d6 e7 Qg8 e8Q Re1 Rg1 Qd1 Nb8 Ree4 Qe6 Red4 Qg6 Rg4 Rg2 Qbc2 Re2 Qc4 Re6 Kd5 d4 Nd3 Re7+ Be6 Re8 Nf2 Re7 Nh1 Re8 Q2d3 Re7 Qc8 Re8 Rg8 h8N Q8a6 Re7 Qdf5 Re8 Ke4 Re7 Kf3 Re8 Bc8 Re5 Q5d3 Be8 Rf8 Re2 Qa5 Re5 Qad5 Nf7 Rf4 Nd8 Nb5 Ne6 Rh4 Nc7 Rff4 Bf7 Rfg4 Na8 Nc7 Rf5+
1Q4RR/1q1kp1K1/1P1r2N1/P2pBb2/2n1bnP1/1qbPr3/r7/qR1Nq1q1 b - - 0 1 legal: proof: e4 b5 h4 f5 b4 fxe4 c4 g5 Bd3 gxh4 Bc2 a6 Ba4 bxc4 b5 Nc6 b6 Nb8 Bb5 axb5 Ke2 h5 Ke3 c5 Kf4 d5 Kg5 b4 Kg6 h3 g4 h2 f4 c3 a4 c2 d3 c4 f5 e3 f6 c3 f7+ Kd7 Ba3 c1R Ra2 b3 Rb2 e2 Qc2 e1Q Bd6 h4 Bb4 h3 Ne2 Rh6+ Kf5 Nf6 Na3 Nh5 Nc4 Nc6 Rf1 h1Q Nf4 h2 Nh3 Ne5 Rb1 b2 Na5 Qg1 Qd2 h1B Nf4 c2 Nc4 Rd6 Na5 Nc4 Ng6 Qc7 Qf4 Qb7 Bc3 Bg7 f8R Be4+ Kg5 Rd1 Rh8 c1Q Be5 Qc2 Qh2 Qb3 Rff8 Nf4 Rfg8 Rd2 Qg3 Re2 Qh2 Bf6+ Kh6 Re3 Kh7 Bg5 Kg7 Ra6 Rc1 b1Q Rd1 Qa1 Rb1 Na3 Nc4 Bf6+ Kh7 Ra8 Nb2 Nc4 Nd1 Ra5 Bb2 Bc3 Qg3 Rb5 a5 Rb4 Kh6 Ra4 Qh2 Ra2 Qg3 Bd2 Be5 Bc3 Qh2 Kc6 Kg7 Bcf5 Qh4 Kd7 Qf6 Qbb2 Qf8 Qb3 Qb8
Nbb1br2/N3P1n1/n3Q1p1/2pP2RR/P1Nq2nn/r2rB1q1/k2n2P1/2K5 b - - 0 1 illegal: No proof kernel
QNRn1q2/2BR2q1/PKb1b2p/1NNr2q1/3pn2P/2Prb1q1/1n2kP2/6r1 b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 a5 b4 axb4 g3 c5 Bd3 cxd4 Bb5 g5 Bf1 g4 Bh3 gxh3 Ke2 Kf7 a4 Kg6 g4 b5 g5 Kf5 a5 Kg4 g6 e5 a6 d5 g7 e3 Kd3+ e2 c3 b3 Bb2 e4+ Kd2 d3 Ke3 h2 Kd4 b4 Nf3 e1R Bc1 e3 Ra3 d2 Ra1 b2 Na3 b1Q Bb2 b3 Ng1+ e2 Ra2 h6 Nc2 Bc5+ Kd3 Nc6 Nf3 Qc1 Ba1 b2 Ng1 b1Q Ra3 Be6 Bb2 Nf6 g8N Ne4 Nf3 Qf8 Nd4 Rg1 Nb5 Kf3 Rb3 Be3 Ba3 Nd8 Ne7 d4 Bd6 Rhg8 Nc6 R8g3 Nb8 Qbb2 Qe1 d1N Bc7 Qba3 Qf1 e1Q Na1 Qae7 Rb4 Qef6 Rc4 Q6g7 Nb3 Ra7 Nc5 Rb7 Bb6 Rd7 Bc7 Rd5 Qh3 Bg8 Qc8 Be6 Qb7 Rh3 Qa8 Qg3 Rb4 Qfg7 Kc4 Ke2 Ra4 Nb2+ Kb4 Qed2 Ka5 Qa1 Kb6 Qa3 Rc4 Qb4 Ncd7 Qbf8 Rc6 Rf1 Rg1 h1B Rg2 Rg1 Nc5 Bg5 Nbd7 Qg4 Nb8 Qge7 Nb3 Rf5 Rc5 Nf6 Rh2 Rd3 Bd6 Qgf4 Rc7 Bc6 Rc8 Ne4 Rg2 Rd5 Rg4 Qg3 Bc7 Qde3 Rf4 Qeg7 Rf7 Qef4 Re7 Qfg4 Rd7 Be3 Nc5 Q4f4 Na3 Qfg5 Nb5
1b1n2Br/n1r2RkP/1P3q1q/1b1K2B1/npp2NPR/qr1b4/1PqQ4/6R1 b - - 0 1 illegal: Other
2r1n2b/1pq1n3/P6R/bPN1r2B/n5pP/1PnrNRK1/1N1rbrQ1/k7 b - - 0 1 illegal: Other
bq5r/p1QBb3/P2pr3/3k1bB1/P1NN2b1/n2PP1q1/1b1b2nn/4R1KN b - - 0 2 illegal: Other
3bB2Q/1Pkb1qBq/Rrn5/r1nq4/3NBPp1/Pn3p1q/3nRP2/n3K3 b - - 0 1 illegal: Other
1Rb1qq2/r1QrP2p/1K2k3/2PBpn1P/N1q2R1n/5Pr1/rbRB4/1q1q4 b - - 0 1 illegal: No proof kernel
QKb5/1p1pb1nP/3n1N2/Rq2rP1b/nPB5/1PR4b/q2Bkn2/B1n3r1 b - - 0 1 illegal: Other
1bK1R1R1/2np4/Rr1rq1P1/1k1Nnn2/2B3q1/P1b1p2b/3QP1P1/nNrr4 b - - 0 1 illegal: Other
1R1n1N2/KP3qr1/PBB3b1/q4p2/1r3B1n/kb2pP2/PNQr1q2/b1r1q3 b - - 0 1 illegal: Other
3q1kr1/2BR4/P2pp1bq/KBr2nNr/3PPB2/2N5/2Pn2bb/3Qq1qr b - - 1 2 legal: proof: g4 c5 h4 a5 a4 c4 b4 axb4 g5 f6 Nc3 fxg5 Ra3 gxh4 Rb3 cxb3 Nb1 h3 d4 h5 Kd2 g5 e4 b5 f4 h4 a5 g4 f5 h2 f6 h3 a6 g3 Bc4 b2 Qf1 g2 Na3 b1Q Qe2 b3 Kc3 b2 Kb4 Nc6+ Kb3 b4 Ka4 b3 Be3 Ne5 Qg4 Qe1 Bh6 b1Q Qg7 b2 Qg4 Qbc1 Bd2 b1R Bd5 Nf3 Bc4 Rh5 Qe6 Nh6 Qb6 Rbb5 Bb3 Rbc5 Qe6 Nf5 Bf4 Nd2 Nf3 g1Q Ng5 d6 Bc4 Bh6 f7+ Kf8 Nb5 Bd7 Kb4 Be8 Nc3 Bg7 Qc8 Be5 Bb5 e6 Qb8 Qgf1 Rg1 h1B Qb6 h2 Ka5 Bg2 Rh1 Kg7 f8B+ Kg8 Rg1 h1R Be7 Bg6 Bf6 Qff2 Rf1 Qg1 Be7 Qe8 Bd8 Kf8 Bc7 Qd8 Qb7 Qee3 Qd5 Qce1 Qc4 Qh3 Qe2 Qhh4 Qd1 Qh3 Be3 Bh2 Bf4 Ra7 Bb6 Rg7 Bc7 Qhe3 Rf3 Rg8 Rh3 Rhh8 Rh7 Qh3 Re7 Rh5 Rd7 Qhh4 Nf3 Qhf6 Ng5 Qh8 Be5 Qh6 Bf4
1bQbBr1q/r2n2PR/P1pR1B2/2B1r3/1nPp1qP1/6r1/4b2K/qN1k1b2 b - - 0 1 illegal: Other
1NB3B1/2R1nP1P/3b1Npk/2qnp1Q1/2qq1b2/1b2B1PK/2bn3P/3r1n1r b - - 0 1 illegal: Other
n1bq4/pbN3P1/1b4N1/2rqPqr1/P2k2Pn/Kp1B1qRR/6n1/1NQ3n1 b - - 0 1 illegal: Other
1B2n3/p2P4/2B2b1K/1nb4n/N4nB1/Pbr5/rqpPb2P/RQkq2Rq b - - 0 1 illegal: Other
1K2b1Br/1bN1kRPp/p1B5/bR4P1/P2r2nn/1q1Qr3/1n2q2P/3R1r1n b - - 0 2 illegal: Other
3nb3/2B2NpQ/q2qkbB1/1R6/b2rP2b/pNr1P1rq/1P4Pq/1n2NK2 b - - 0 1 illegal: Other
1B4N1/2R1P2P/1bPp2Rn/rn5b/qpb1nKB1/3Br1p1/QPr3r1/4k2r b - - 0 1 illegal: No proof kernel
N2r1R2/pr6/3qqQrB/1pPPn3/2b1qkPK/4Rpr1/1n1R1P2/3r1Bb1 b - - 0 1 illegal: No possible last move
N2qb2q/b2p1P2/3Pp1p1/2r1Pq2/2nR2R1/1P3nQ1/1r2Br1k/KR1rB2r b - - 1 2 illegal: No possible last move
Kn6/BNN1q2n/b1QP4/1n1p2Pq/p2P1b1p/2k1n1rr/2P4b/1n1RN2B b - - 0 1 illegal: Other
3Kn3/b1Bb3P/qr6/brP2P1b/p2p1R1B/5Bpq/3P2Qq/nbk1R1N1 b - - 0 1 illegal: No proof kernel
N1bq1B2/2P1b3/p1r2npn/k1q1N3/Pb4Pb/R5bp/K2Pr2B/3nQ1N1 b - - 1 2 illegal: No proof kernel
B1br1N2/p1nQ2KP/1nq1rP1p/n3B1bR/B3P3/qp4kP/q7/N2n3n b - - 0 1 illegal: Other
2b1Br1R/4K3/1qP2p2/4BqPB/npR1Q1pN/5PP1/2nrkb1b/1b1b3q b - - 1 2 illegal: Other
2rb4/Bn2q3/2PpnR2/kr6/p1bN4/p2nP1P1/RQ1Pq3/K1nNq1nN b - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 b5 f4 bxa4 b5 e5 b6 exf4 e3 c6 Bb5 cxb5 c4 a5 b7 f5 c5 h5 g3 b4 c6 f3 Ra3 d6 Nh3 f2+ Ke2 f1N Kd3 f4 Kc2 f3 Kb2 f2 Nc3 b3 Ng1 h3 Ne4 h4 Ra2 h2 Qe2 h3 Qa6 a3+ Kb1 a4 Rb2 Be6 Nf3 Nd7 b8N Be7 Ng1 Nf8 Qe2 Nh6 Na6 Rb8 Qe1 Bc4 Ka1 Nf7 Nf3 Rb5 Neg5 Ne6 Ra2 b2+ Kb1 Rf8 Rg1 h1Q Ra1 h2 Kc2 b1N Bb2 Nc3 Qb1 Ne2 Bg7 Nc1 Ne1 Qf3 Nc5 h1N Nh7 Nh2 Qb2 f1Q Kb1 Nf2 Ned3 Q3e2 Ng5 Nf3 Nce4 Qfe1 Rf1 Ng1 Bd4 Bf6 Bb6 Qe7 Ba7 Kd8 Nf3 Kc7 Ra2 Rc8 Nd4 Nfd8 Nc3 Nb7 Ka1 Bg5 Nd1 Bf6 Nf4 Nfd3 Nh3 Bh4 Nhf2 Bg5 Bb8+ Kb6 Nh1 Ka5 Rf5 Qe8 Rf2 Bd8 Rf6 Qe7 Ba7
2brB2k/n3RNb1/5qq1/Brb3bP/KPQ2Ppn/2B1p1P1/5p2/3Rr2q b - - 0 1 illegal: No proof kernel
6b1/qb1q3P/1bBnR3/PN6/PpQ2bp1/B3nrP1/1pn2r1N/r1k1B1K1 b - - 0 1 illegal: Other
1Q1r4/bn1P2bK/R2R1Nnp/1N2q3/PPr5/k3ppqB/1b1N1P2/2rn1b2 b - - 0 1 legal: proof: h4 b5 e4 g5 c4 gxh4 e5 bxc4 e6 a5 b3 a4 Rh2 a3 Bb2 axb2 Rh1 dxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Kg5 Kb4 a4 f5 d4 c5 g4 e5+ Kh5 e3 d5 h3 d6 h2 d7 f4 g5 e4 g6 f3 g7 c3 Nd2 b1N Bg2 e2 Nc4 e1Q Qd2 h6 Kg6 Ne7+ Kf7 Na6 g8N Qc7 Qd1 c2 Bf1 c1B Ra3 Nc3 Qc2 Ng6 Ne5 c4 Ne2 Nd1 Bh3 c3 Nf6 Be3 Qb1 c2 Bg2 c1B Nh7 Ba7 Ra2 Nc5 Nc3 Ba6 Rc2 Bf1 Bh3 Bb2 Nf6 Bg7 Nb5 Rac8 Nc4 Nb7 Nd2 Qg3 Rc6 Rhd8 Ra6 Rc4 Rg1 h1R Rg2 Nf8 Kg8 Ng6+ Kh7 Qe3 Rd6 Qeg5 Ra6 e3 Rg1 Q3e5 Rg4 Qh4 Rd4 Qhg3 Rdd6 Rc1 Bf5 Rh4 Bh3 Rd4 Qc2 Rg4 Qc8 Rh4 Qb8 Rhc4 Nd4 Ka3 b4 Rb1 Qc8 Ra1 Qb8 Rac1 Nb5+
r1bK4/b1rp2PR/k3Pnb1/RpB2n2/3qBr1B/N4p2/b3QP1P/2q4q b - - 0 1 illegal: No possible last move
1nnRQ1nK/1rpN4/3k3P/qN2r2p/P4brR/PNB2pb1/5P2/qb1r4 b - - 0 1 illegal: Other
1B1nRqBK/2p1r3/1q5p/Pbb2q1b/3Bp2n/2N1P3/P1n3bP/r1k1QR2 b - - 1 2 illegal: Other
q2Qb3/bRpBnB2/1N2p1qN/B1P1nP2/1P1K3p/1b2P3/r3k2q/3nb2r b - - 1 2 legal: proof: d4 b5 h4 e5 a4 bxa4 b4 exd4 Ra3 g5 Rc3 gxh4 Re3+ Be7 Re6 fxe6 Bf4 Bc5 Bc1 Bf8 Kd2 Kf7 Kd3 Kf6 f4 Kf5 c4 Kg4 f5 a5 g3 h5 Qe1 d5 e3 h3 Rh2 a3 Ra2 a4 Re2 a2 Rg2 a1Q Qc3 a3 Rh2 a2 Ba3 Qf6 Nf3 Nd7 Qe1 Ne5+ Ke2 Bc5 Ng5 Ba7 Nc3 Ne7 Nf7 Bd7 Na4 Be8 Bb2 Qg6 Nb6 d3+ Kd2 Kf3 Kc3 d2 g4 d1B g5 Bb3 Qh4 Rh7 Nh6 Rh8 Bg2+ Ke2 Kd4 Qh1 Bc3 a1B Be4+ Qg2 Rh1 Bb2 Ra1 h2 Ra5 h1Q Rb5 Qhh2 Bc2 Qg8 g6 Qg5 g7 Qg6 Qf6 Bc1 Be4 Bd2 Bb2 Qf8 g8B Be1 Bf7 Qfg8 Kc5 d4 Bc6 d3 Bd4 d2 Bd7 d1N Qh4 Nd5 Qd8 Ne7 Ra5 Bb8 Ra7 Rh7 Rb7 Ra2 Bb2 Ba7 Kd4 h4 Ke4 Rg7 Bd4 Q6h7 Bc5 Rg1 Kd4 Rf1 Nd5 Qf8 Bb6 Rh1 c5 Qfg8 Ba5 Qgg2 Nb6 Qhg6 Rb8 Qa8 Rb7
q1BrrN2/P1KR2p1/p4rnq/k7/6P1/q1b2Q2/PPR3pn/1R1b1rbB b - - 0 2 illegal: Other
1rNk1N2/K2p3p/5rBn/pNPbBbn1/3P1P2/Pr1n2r1/qq3R2/2b2Q2 b - - 0 2 legal: proof: h4 c5 b4 cxb4 e4 f5 a3 fxe4 h5 b3 Ra2 bxa2 h6 gxh6 Be2 h5 Bf1 h4 Ke2 a1Q Ke3 e5 c4 a5 d4 b5 g4 h3 g5 h2 g6 b4 f3 b3 c5 b2 g7 Nh6 g8N Nc6 Nh3 Rb8 Bc4 Nb4 Qe1 Ba6 Rf1 h1B Rg1 Nd3 Qg3 Qa2 Qf4 Qb6 Rg6 Kd8 Ne7 Rg8 Rg2 Rg3 Nd2 b1R Bf7 Rb3 Bg6 Bg7 Ke2 e3 Nc8 e4 Rf2 Bc4 Ng5 Be6 Qf7 Bf5 Qc4 Be5 Qf7 Bf4 Qc4 Qa1 Nb1 Qa2+ Bd2 Qb4 Qc1 Qc3 Qf1 Qcb2 Nc3 Nb4 Ke1 e2 Nb5 Bg2 Bc3 Bc1 Bd2 Bh1 Bf4 Bg2 Be5 Bh1 Rh2 Bg2 Kf2 Bh1 f4 e1N+ Qe2 Nf3 Rg2 Nc2 Qf1 e3+ Ke2 Nb4+ Kd1 Nd3 Rf2 Nd2 Ke2 Ba8 Nb6 Bd5 Ne6+ Ke7 Nf8 Kd8 Nc8 Ne4+ Kd1 Qc3 Qh1 Ng5 Qf1 Qaa1 Ke2 Qb4 Kd1 e2+ Kc2 e1R Nc3 Qb6 Nb5 Rb2+ Kc3 Qa2 Bg7 Re6 Bh8 Bg2 Be5 Rb3+ Kc4 Rf6 Nbd6 Qb7 Nb6 Rc3+ Kb5 Qc7 Ka6 Bd5 Nb5 Qd6 Ka7 Qe7 Nc8 Rb3 Bd6 Qee2 Be5 Qec2 Rg2 Qcb2 Rf2
rqNn4/Pr2r1b1/2B2pr1/k1pb1rPp/8/2P2PNN/4RRr1/KQ2q2n b - - 0 2 legal: proof: e4 d5 h4 dxe4 b4 g5 a4 gxh4 Ba3 a5 Rh3 axb4 Rh1 bxa3 d4 Kd7 Kd2 Kc6 Kc3 Kb6 g4 c5 f3 e5 d5 h5 d6 a2 Kb2 h3 g5 h2 d7 e3 c3 e4 Qb3+ Ka5 Bc4 b5 Ne2 b4 Nc1 e2 Nd3 e1Q Bd5 e3 Be6 e2 Qd1 b3 Bf5 Nh6 Be6 Nc6 Qc1 Nf5 Rf1 h1R Rg1 Rh2 Nd2 Rg2 Ne4 Ng3 Ndf2 Bg7 Nh3 Rf8 Bd5 Nh1 Rf1 Bb7 Qb1 Qb8 Rf2 Nd8 Ng3 Ra6 Be4 Rg6 Bc6 Ba8 Bb5 Bd5 Bc6 Kb6 a5+ Ka6 Bb7+ Kb5 a6 Ka5 Ka3 b2 Bc6 f6 a7 Rh8 Qc1 b1R Qc2 Rb7 Qb1 Bb3 Kb2 Rg8 Qc2 Bd5+ Qb3 Rh8 Rd1 a1R Rd2 Rd1 Rc2 Ne6 d8N Rd3 Nf7 Nd8 Ka2 Rd4 Kb2 Rf4 Nd6 Rf5 Rd2 Qc1+ Ka2 e1R Nc8 Ree7 Rde2 Qd2+ Ka1 Qe1+ Qd1 Qe5 Rb2 Ne6 Nb6 Ra8 Rbe2 Qb8 Nc8 Nd8 Qb1
6R1/p1R1b1N1/q2rr1p1/b1QnP3/1rp2nn1/1P4R1/b1PKP3/b1r2NBk b - - 0 1 illegal: Other
1Nq2br1/4Qb2/P5N1/3b1p2/4pPr1/Kp2Br1R/nP1Pqb2/rRk1n1R1 b - - 1 2 illegal: No possible last move
Q1r1n1R1/qB2pPrp/n3B2K/1bN1k1p1/1bb1q2P/q1bB2P1/4q1PN/8 b - - 1 2 illegal: Other
2RnK3/4p2Q/P5pn/PN1br3/1p1PnrP1/2q1b1pR/1r2q2k/R1N2Bq1 b - - 0 1 illegal: Other
1b2kB2/pNR1bpr1/p1qQ3P/2n1rqpn/6qP/P1R2P1b/B5n1/2B4K b - - 0 2 illegal: Other
7R/1Bp1kpQ1/r4b2/NK1B1P2/3prn2/2pr1q1P/1bPPR3/1bRnn2n b - - 2 3 legal: proof: f4 a5 g4 h5 b4 hxg4 Bb2 axb4 Nc3 e6 f5 e5 Ba3 bxc3 Be7 Ra3 Bg5 Ra8 Bf4 exf4 e4 d5 Ke2 g5 Kd3 b5 a4 f3 a5 f2 a6 g3 e5 b4 a7 g2 h3 b3 e6 b2 e7 b1R Kd4 g4 Kc5 g3 Ra3 Na6+ Kc6 Nf6 Qc1 Nb4+ Kb5 Ne4 Nf3 g1B Ra2 g2 Qd1 Ng3 Ra1 Be6 Qe2 Re1 Ka4 Nd3 Kb5 Nf4 Qd1 Re4 Be2 f1N Ka5 Bd4 Ng1 Bf6 Bf3 Ne3 Qc1 Nd1 Ne2 g1N Bg2 Nf3 Rh2 Ne1 Nd4 Nh1 Nb3 d4 Qa3 Rg8 Kb5 Rg3 Rc1 Rd3 Na5 Ba2 Qd6 Qc8 Qe5 Bb1 Bf3 Kd7 e8R Ba3 Rh8 Bb2 Re2 Qg8 Bg2 Qg4 Bf3 Ne6 Qg3 Nf4 Qg1 Qh5 Qg7 Ke7 Bg2 Re6 Bc6 Qf3 Bd5 Re8 a8B Re4 Bac6 Ra8 Bb7 Ra7 Ba2 Ra6 Bad5
3R3k/B6p/1NR3NP/3PPKp1/3rpb2/3Pb1qn/p1b3qr/Q1Rq1n1q b - - 0 1 illegal: Other
R4n2/2Pp1N1q/r2p1b2/1bBbQ3/2qPrn2/R1P3Pp/3pk1N1/2rrN1K1 b - - 0 1 illegal: Other
R2R4/pNKP2b1/5Rb1/Pq1PnP2/k2b2rp/1p2Q3/p5br/qnNq2B1 b - - 0 1 illegal: Other
r1Nbnb2/k1N2b2/2p1pP2/p2b1p2/2P1P3/n1rq1bN1/2B1PB2/R1b1Q1K1 b - - 0 2 illegal: Other
1nBK1b1b/4p2n/BPp1r2n/3P3b/PN1N2qB/2P5/p1bp2n1/Q2Rr2k b - - 0 1 illegal: No proof kernel
4RBk1/N1b1pPp1/3n1Q2/p1P1R1NK/1bpbP3/3nb2P/b3p3/1Rr1q1r1 b - - 0 1 illegal: Other
1r5n/4pp2/P1p1krNP/1N1Bp3/n3rP1r/1RP1Qpqb/3K3b/4nNR1 b - - 0 2 illegal: No possible last move
1N1q4/b3Nrp1/2RkprP1/b3qp2/R1K2B1n/PpbP1Q1P/2b2p1n/5R2 b - - 0 1 illegal: No proof kernel
b3Kb2/B1PP2pp/Nrp3pp/1k1PN2P/1R1nR2q/2r5/5pn1/3rQbR1 b - - 0 1 illegal: Other
1Q3N2/1NNB4/1pb1ppPK/1p1Rb2p/1p3P2/q1Pr1krP/nn1r1b2/7B b - - 0 2 illegal: No possible last move
1q1B1BQ1/2Q2nR1/bPP3b1/2P2kNr/P1r2q1r/6R1/1p4K1/bqqq4 b - - 0 1 legal: proof: f4 g5 c4 d5 e4 c5 b4 b5 h4 gxh4 Bd3 e5 Bc2 exf4 d4 a5 Bb3 a4 Na3 axb3 dxc5 d4 c6 Nd7 c5 Nb6 Nc4 Nd5 exd5 bxc4 Kf2 Ke7 g4 Kf6 a3 h5 d6 c3 d7 c2 b5 f3 b6 h3 Rh2 d3 Ne2 d2 Kg1 h4 Nd4 f2+ Kh1 f1B Rg2 h2 Re2 Ra4 Re4 Bca6 Qe1 Bg7 Re2 Rh5 Nf5 Nh6 Re5 Bfd3 Ng3 Rc4 a4 Qb8 Kg2 h1R Re7 h3+ Kf2 h2 d8B Kg5 Qg1 f5 Ra3 f4 Kf3 Ba1 Kf2 b2 Kg2 Kg6 Rh7 Nf7 g5 Bf5 Ne4 f3+ Kf1 f2 Kg2 d1Q Qe1 Qg4+ Rg3 Qe2 Qc3 Qe1 Bf4 Qb1 Bd6 c1Q Bf8 Qcf4 Qe5 Qfc1 Qe7 Qcf4 Ra3 Qfc1 Qc7 f1Q+ Kg3 Qff4+ Kg2 Rf1 Rb3 Rf3 Rc3 Rfh3 Rg3 R3h4 Nc3 Bc2 Ne4 Kf5 g6 Ke6 g7 Bd3 Nd2 Bg6 g8Q Kf5 Nf3 h1Q+ Kf2 Rg4 Rg7 Qhd1 Kg2 Rgh4 Ng5
r2nqr2/b1R1Qq2/Pn3PP1/1n2P3/1nN4K/4r3/1pRQBN2/k3qn2 b - - 0 1 legal: proof: c4 c5 d4 a5 b4 axb4 h4 f5 e4 g5 d5 gxh4 Nh3 f4 Be3 fxe3 Ng1 d6 Qc2 Bd7 Qb3 Bc6 dxc6 d5 Qa4 e6 cxd5 exd5 Qd1 d4 a4 Kf7 g4 Ke6 f4 h5 g5 b5 e5 Kd5 c7 b3 c8Q c4 f5 d3 g6 Kd4 f6 c3 a5 c2 a6 c1N Nh3 e2 Kf2 e1Q+ Kg2 b2 Qb7 b4 Ng1 d2 Kh3 b3 Bb5 Nc6 Qb8 Nd3 Qa7+ Bc5 Qc1 d1Q Nc3 b1N Ba4 Qe8 Rh2 Na3 Ne4 Ndb4 Nc3 Nb5 Qb8 Ba7 Nb1 Nge7 Rc2 Nc8 Ra3 Rf8 Rc5 Nb6 Qc7 Nd8 Kh2 h3 Rc2 h4 Kh1 h2 Kg2 h1N Kh3 Ng3 Qh7 Nf1 Qe7 b2 Ra1 Kd3 Rc7 Qb3 Nd2 Qbf7 Kg4 h3 Nc4 h2 Bd1 h1R Nh3 Rh2 Qf4 Kc3 Be2 Kb3 Nf2 Rh3 Qd2 Re3 Rc1 Ka2 Rc2 Ka1 Kh4
1b1B1N1q/PPb4q/1P4b1/rn2RbQp/b4qk1/nB1Q4/K1P3b1/4N3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 d4 c5 dxc5 e5 b5 exf4 a4 b6 Qd4 Ra6 Qb4 axb4 a5 Ra7 a6 Ra8 c6 Ra7 Ra5 bxa5 b6 Rb7 cxb7 Qf6 Bb2 Qg5 Bc1 Qd8 Kd1 Ke7 g4 Ke6 e4 f5 e5 d5 g5 b3 a7 d4 g6 f3 g7 a4 Ne2 b2 Nec3 f4 Nb5 Kf5 e6 d3 e7 f2 e8Q h3 Qe2 h2 Bg2 f1Q+ Qe1 d2 Bf3 a3 Bc6 f3 N5c3 f2 Bf3 a2 Nb5 a1B N5c3 Nd7 Bc6 Ngf6 g8Q Nd5 Qg1 Nc7 Ne4 Ne5 Bd5 Nc4 Qg2 Na3 Bf7 Ncb5 Nbc3 b1Q Ng3+ Kg4 Bg6 Bf5 Na4 Bd6 Bf7 Bb8 Bb3 Bae5 Nc5 Bec7 Nd3 h6 Rg1 h1B Qd5 Bg2 Ne4 Rh7 Nec5 Qh8 Ne6 Qba1 Qd8 Qag7 Nf8 Qd7 Qf6 Rg7 Rh1 Rg5 Rh5 Qdh7 Bb2 Bc6 Qg7 Bg6 Bf6 Rc5 Re5 h5 Bd8 Rd5 Nc1 Qc4 Qf6 f1B Qe3 Qf4 Nd3 Bg2 Ne1 Rc5 Qd6 Bd7 Qdd3 Bde8 Ke2 d1B+ Kd2 Bdf3 Kc1 Bfe4 Kb2 Bef5 Qde4 Nd4 Qg1 Ra5 Ka2 Ba4 Qd3 Ndb5 Qc5 Qfh6 Qe7 Qf4 Qg5+
2qb3q/RnQ1nK2/1P3P1k/2N5/n1p1BpB1/2bP3N/bPQ1bb1r/8 b - - 0 1 legal: proof: f4 g5 c4 d5 a4 dxc4 h4 gxh4 d3 b5 axb5 e5 f5 a5 Bf4 f6 Ra3 Ra6 Rc3 Rd6 Rc2 Rd5 e3 Rd4 exd4 exf4 Re2+ Kd7 Re5 fxe5 Qc2 Ke7 Qd1 Ke8 Kf2 Kf7 Kf3 Kg7 Kg4 c5 Kh5 a4 g4 c3 b6 c2 d5 c1B g5 e4 d6 a3 d7 a2 g6 a1N Nf3 h3 Qb3 h2 Qc4 e3 Ne5 e2 Nc6 e1B Qb5 Bf2 Qa6 Bd2 Qa3 Ne7 Qa5 Na6 Qb4 Nb3 Qc4 Bc3 Ne5 Na5 Ng4 Nb7 Kg5 h5 Bh3 h4 Nd2 Qc7 d8Q Be6 Bg2 h3 Ra1 h1B Ne4 Qc8 Qc7 h2 Bh3 Bf3 f6+ Kg8 g7 Kh7 Qa4 h1Q Qc2 Ba2 Bg2 c4 Nc5 Be2 Bd5 Bfe1 Nf2 Qh2 Nh3 Bf2 Bf3 Qh1 Bg4 Qh2 Ne4 Nac5 Kh5 Na4 Nc5 Ng6 Kg5 Be7 Kh5 Bd8 Kg5 Qa8 Kf5 Ne7+ Ke6 Qb8 g8B+ Kh6 Kf7 Qc8 Bh7 Rg8 Bh5 Rg2 Be4 Qh1 Bg4 Rh2 Bc6 Qe4 Bd5 Qef5 Be4 Qh7+ Ke8 Qh8+ Kf7 Bb1 Ra3 Ba2 Nb3 Nac5 Ra7 Na4 Nc5
1b5b/1N3nb1/3P2kp/P1n4q/nBnnR3/2P5/1Prb1p1Q/1N2BKQ1 b - - 0 1 illegal: No proof kernel
1B5k/pbpq1nP1/PrQ2r2/nr4P1/3P1Rpp/nB2b3/5NK1/5NQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 e4 b4 c3 e5 fxe5 bxc3 Bd3 dxe4 Bb5+ Nc6 Bf1 Nb8 a4 f5 b4 Nh6 g4 Bd6 g6 Bf8 g5 Bd6 Na3 Bf8 Bb2 cxb2 Rc1 Ng8 Rc3 Qd7 Rg3 Qd8 Rg4 fxg4 Kf2 b1N a5 h5 d3 h4 b5 e3+ Kg2 e2 b6 e1R b7 Nc6 e6 Bc5 a6 Kf8 e7+ Kg7 e8Q Na5 Qc6 Re6 Nh3 Rf6 Nf2 Nh6 Nc2 Rb8 Ne3 Qd7 Be2 Rhf8 Qg1 Kh8 Bd1 Na3 Nf1 Be3 d4 Nf7 Rh3 Re8 Rf3 Ree6 Rf4 Qe8 Qb5 Rb6 Ba4 Bd7 Bb3 Bc6+ Qd5 Qd7 Qf3 Rf8 b8B Bb7 Qc6 Re8 Re4 Re5 Rf4 Reb5 g7+
3nbQQ1/3br1nB/5b2/r1qP1P1k/q1N1P1bB/2n5/1RP3nK/1b1rR3 b - - 0 1 illegal: No proof kernel
Qn2qb1R/7r/3Prn2/3bq2r/2r1r1n1/PN1q1n2/1B2QPKP/1k2R2B b - - 0 1 legal: proof: c4 f5 b4 a5 g4 axb4 e4 fxe4 a3 d5 cxd5 h5 Nc3 hxg4 Na2 b3 Bd3 bxa2 Bc4 Rh5 Bf1 Rh8 d4 Kf7 d6 Kf6 d7 Kf5 d5 b5 d6 g5 Bg2 c5 Kf1 e5 Qb3 c4 Qe3 b4 Nf3 g3 Qe2 e3 Qd3+ e4 Qb1 g4 Ng1 b3 Qc2 c3 Bh3 b2 Qa4 b1Q Qc4 c2 Ne2 g2+ Ke1 g1N Kf1 Ra7 Qb4 Qe8 d8Q Nf6 Qc3 Nf3 Qda5+ Ne5 Qb5 Rh5 Qe1 Bb7 Bb2 c1R Qa4 Bd5 Qb5 Rah7 Qb3 Qd3 Kg1 Rc4 Bg2 g3 Bf3 Neg4 Rb1 a1Q Nf4 e2 Qec3 e1R+ Kg2 e3 Qa2 e2 Bc1 Qb2 Qa5 Ke5 Ng6+ Kd4 Qa8 Kc3 Ne5 Qbb5 Bb2+ Kc2 Nc6 Qe5 Na5 Qbe8 Rd1 Qdc3 Rd4 Qd3 Qb3+ Kb1 Rg1 Rf1 Qa4 e1R Nb3 Re4 Q4a6 Rfe1 Rh1 Re3 Rf4 Ree4 Rf1 Nh6 Rh4 Nhg4 Kh3 g2 Rh1 Rd1 Re1 g1N+ Kg2 Rdc1 Qa5 Rd1 Qd2 Rdc1 Qe2 Rd1 Kf1 Rdc1 Bh1 Nf3 Kg2 Rd1 Rg1 Re1 Rf1 Rf5 Rh6 Rh5 Rg1 Rf7 Rh8 Rfh7 Rf1 Qed4 Qe3 Re6 Rg1 Qe5 Rf1 Qd1 Qd2 Re3 Qe2 Ree4 Bc1 Qd2 Re1 Qd3 Bb2+
Nk2n3/1n1r3P/q1rRQ1n1/7p/Pb1P1b2/2B2P1R/N3q1n1/KQ2r1nq b - - 0 1 illegal: No proof kernel
4b2r/2Qrbkb1/2R1BP2/n1R1pP2/P2Nq1q1/2b1bP2/2N2Q2/1K2n1rb b - - 0 1 illegal: Other
1R6/5b2/QQBPPp1k/Kn4n1/3P1n2/b1nqP1q1/b1q1B1bN/2r1Rr2 b - - 0 1 illegal: Other
1Bq2q2/bBR4P/K1nQb2Q/nNrPqP2/b4P2/qp1rN1b1/8/k4n2 b - - 0 1 legal: proof: b4 d5 a4 a5 c4 axb4 e4 dxc4 g4 f5 exf5 h5 Ra3 hxg4 Rb3 cxb3 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kd4 h4 e5 a5 g5 f3 c5 a6 b2 d3 g3 h5 e4 h6 b3 h7 e3 a7 c4 Rh2 e2 Qd2 e1Q Qe2 g4 Qe8 c3 Qh5 g2 Qh4 c2 Nh3 g1B Bh6 c1Q Rc2 Be6 Ng5 Bd6 Rc7 Qc8 Nf7 Ne7 Ng5 Nec6 Qh1 g3 Qh2 g2 Nd2 Kc3 d4 b1N d5 Kb2 Bc4 Na5 Qg3 Qe5 Re7 Nbc6 Nge4 Ka1 Qg6 b2 Nf1 Nd2 Qg7 b1B Nfg3 Nf1 Qg6 Qa3 Bf4 Bc2 Qh6 b6 Rb7 Ba4+ Ka6 b5 Nc3 b4 Nb5 b3 Bd3 Rg8 Be2 Rb8 a8Q Ba7 Bc4 Qf8 Rc7 Rc8 Qb8 g1Q Be2 Qgc5 Bc4 Nh2 Nf1 Rg3 Ne3 Nf1 Bd3 Rg4 Bg3 Rd4 Be2 Rd3 Qb6 Qc4 Qc5 Be7 Qd6 Bh4 Bh2 Qeg7 Bf4 Bg3 Be5+ Qc3 f4 Qgh8 Rb7 Qhg7 Qe7 Rd1 Bb8 Ne5 Nd4 Bh2 Qd6 Bg3 Bb5 Rd3 Bc6 Qd7 Bb5 Rc5 Bc6 Qcb2 Rc7 Qdc8+ Bb7 Nec6 Nb5 Qe2 Nc4 Qe5 Ne3
5B1b/nQ3q2/1Nrb3P/4P2n/NP3krr/1rRbP3/K1b1p1B1/nn4Q1 b - - 0 1 illegal: No possible last move, all moves rejected
r4b2/3pNRk1/bBbP1q1q/4rQnb/1PQ4p/2N2P2/P1n4K/1q1R2r1 b - - 0 1 illegal: No possible last move
2Bn1Kbq/q1P1nB2/2rq1p2/5Prr/kq1n1P2/1P1p2Q1/N1b1Q3/5RR1 b - - 0 1 legal: proof: f4 b5 a4 bxa4 d4 g6 e3 Bh6 f5 Bf4 exf4 c5 Ba6 cxd4 Bd3 Ba6 Bf1 Bc8 Ba6 h5 Bf1 g5 Be3 g4 Kd2 g3 Bf2 gxf2 g4 Nc6 g5 Qb6 Na3 Nb8 Nc4 Qc7 Ne5 Qd8 Ng4 hxg4 Kd3 e5 Kc4 a5 Kc5 d5 c4 Kd7 h4 g3 g6 e4 g7 e3 h5 e2 h6 e1Q h7 g2 Bd3 f1Q Qd2 f6 Bb1 d3 Nf3 g1R Rh2 d4 Ng5 a3 Qd1 a2 Qc1 a4 Nh3 d2 Bd3 d1B Rd2 a3 Kd5 Bc2 c5 Ra6 Rg2 Qb4 Qd2 Rc6 Qe3 Qd1 Ba6 d3 Qe5 Qh5 Rf1 a1Q Ng5 a2 Ne4 Qhe8 Rg6 Rg5 Nc3 Qdb6 Qe2 Qc7 Rh1 Qg1 Bb7 a1N Na2 Nb3 Ba6 Qge3 Rf1 Nd4 Bb7 Q3e7 Ba6 Qa7 Bb7 Nh6 g8B Nf7 Rg7 Nd8 Bf7 Kc7 Rg6 Bd7 Bc8 Be6+ Ke4 Rd6 c6 Kb6 c7 Kb5 Rg7 Nbc6 Rg6 Rg8 h8Q Rh5 Rgg1 Ka4 Qg7 Q8f8 Qg3 Rgg5 Bg6 Qh7 Be8 Bg8 Bf7 Re6+ Kd5 Qh8 Qef3 Re1 Qe2 Rc1 Qge1 Qbb7 Qg3 Ne7+ Kd6 Qb4+ Kd7 Bd1 Qee1 Rc5 Qe2 Bc2 Kd6 Nec6+ Kd7 Qd6+ Ke8 Ne7 Kf8 Rc6 b3+
Q1Qr4/Rpb2b1R/6k1/Pr6/n1qPpN2/3qr1nB/2qP1KnP/B5r1 b - - 0 1 legal: proof: b4 d5 e4 f5 c3 fxe4 b5 d4 cxd4 a6 Bd3 axb5 Bf1 b4 g4 g6 f4 g5 Na3 h6 Nc4 gxf4 g5 h5 Ne3 Ra5 Ng4 hxg4 Nf3 Ra3 Ng1 Ra8 a4 Kf7 a5 c5 Qe2 e5 Ra4 g3 Qg4 g2 Ba6 c4 Bb5 c3 Bd7 f3 Ra1 f2+ Ke2 f1Q+ Ke3 b3 Bf5 c2 Be6+ Kg6 Qd1 b2 Bh3 b1R Qe2 Ne7 Qa6+ Be6 Ra2 Qc8 Rb2 Qd3+ Kf2 e3+ Kf3 e2+ Kf2 e1N Ra2 e4 Rb2 Nd7 Qa7 Bf7 Qc5 Nb6 Ne2 Na4 Rg1 Nf5 Rb6+ Bd6 Ra6 Rb5 Bb2 c1Q Ba1 Qcc2 Ra7 Bc7 Qc4 Ng3 Nf4+ Kh7 Rf1 g1R g6+ Kh6 g7 Ng2 g8Q Qe6 Nh5 Rd8 Nf4 Qd5 Qc5 Q5c4 Qe8 Kg7 Qf5 Rh5 Qc8 Rb3 Qa8 Rhb5 Qd7 Rb1 Qf5 Re1 Qfc8 Re3 Rc1 Qd1 Rc3 Q1c2 Rb3 Rbd5 Rb6 Rb5 Rd6 Kh7 Rh6+ Kg7 Rh7+ Kf6 Nh5+ Kg6 Nf4+
1r1Q2b1/RNB5/1bb2bnK/P1Q2P2/pqP2nr1/2kb2pR/P2N4/r2b4 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 g5 cxd4 g6 a4 Bd3 exd3 Kf1 Qa5 bxa5 hxg6 Ke1 g5 Bf4 g4 Bh6 Nf6 Bc1 Ng8 Kd2 Kf7 f4 Ke6 h4 Kd5 h5 Kc4 c3 g5 h6 d5 h7 e5 f5 b5 Rh3 b4 Nf3 g3 Rh1 g2 Bb2 g1B Rh5 g4 Rh2 b3 Qe1 g3 Rh4 e4 Nh2 e3+ Kd1 e2+ Kd2 Bb7 Re4 Ne7 Ng4 Bg7 Nf6 Nbc6 Nh5 Nd8 Bc1 b2 Nf6 Bc6 Ng4 Bf6 Nf2 Ne6 Rh4 Rag8 Ng4 Ng6 Rh3 Nef4 Rh4 Rb8 Qf2 Rhg8 h8Q e1R Rh7 Rf1 Qe1 Bf2 Kd1 d2 Nh6 Rg7 Kc2 d1B+ Kd2 d3 Qe3 d4 Nf7 Bc2 Nd8 Rh1 Nb7 Bg1 Ke1 d2+ Kf1 d1B Qd8 d3 Nd2+ Kb5 Ke1 b1Q c4+ Kb4 Qc5+ Kc3 Rh3 Qb4 Rb1 Bdf3 Ba3 Bfd5 Bc1 Qa3 Rb6 Qb4 Ra6 Bg8 Ra7 Ne5 Ba3 Rg4 Bc1 Neg6 Kf1 Nd5 Kg2 Bf2 Ba3 Ra1 Kf3 Bb1 Qce7 Bb6 Qc5 Rd4 Bc1 Ndf4+ Kg4 Re4 Nf3 d2 Ba3 Ne6+ Kh5 d1B Kh6 Bd3 Nd2 Rg4 Bb2+ Kc2 Be5 Nef4 Bd6 Kc3 Bc7
7K/Pqrpr3/4BPQ1/2R1B3/r1bbr1b1/1pP1n1qP/1Q2R3/k1b3nN b - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 c5 b4 cxd4 Nd2 axb4 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Ra7 Ng4 hxg4 Bb5 Ra5 Bf1 Ra8 Kd2 Kf7 Kd3 e5 Ke4 b5 a4 f3 f6 Ke6 c3 b3 h3 b2 a5 b1Q+ Qd3 b4 a6 f2 g6 g3 g7 g2 Ra2 Nc6 Bf4 Nh6 Nf3 g1B Nh2 Ng4 Rd2 Ne3 Rc2 Qc7 Qb5 d3 Nf3 d2 Qa5 d1B Bh6 Nd4 Bg5 Ne2 Bg2 f1R Rh2 Re1 Kd3 e4+ Kd2 Qg3 Qa3 Kd5 Bf4 Kc4 Ng5 Be7 Qc1 Kb3 Be5 Bb7 g8Q+ Bd5 Qf7 Rhc8 Ra2 Bc4 Qg6 Rc7 Ra5 Bc5 Rb5 Bd4 Rc5 Ka2 Bf3 b3 Bg4 Ka1 Be6 Bf2 Rg2 Ng1 Qc2 Bg4 a7 Rb8 Rh2 Rb4 Qc1 Ra4 Rg2 Qf4 Qc2 Bg3 Re2 Bf2 Nf3 Qg3 Nh4 Qa2 Nf5 Qa3 Rd5 Qb4 Rc5 Qh2 Ng3 Qb7 Nh1 Bg3 Qf5 Bf4 Qg6 Qg3 Rg2 Rb1 Qh7 Re1 Bf5 Bg5 Qf7 Nd1+ Bf4 Bd5 Qh7 e3+ Kd3 Be6 Rd2 Qc8 Ke4 e2 Qg8 Bh5 Bg4 Bc4 Kf5 Qb7 Bd6 Bhf7 Qg7 Bfd5 Kg6 Bf3 Kh7 Bf4 Bf5 Bg4 Qg6 Bh6 Kh8 Bg5 Rd3 Bc1 Re3 Rf1 Re8 e1R Qe2 Rf4 Qd2 Re7 Qc2 Rg7 Re2 Re7 Be6 Re4 Be5 Ne3 Qb2+
1n1q2Qk/1R6/B4nK1/1P2NP2/2Qrr1nP/bp1Ppq1R/1pb2Nr1/6q1 b - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 a5 b4 axb4 Qf3 h5 Qd1 hxg4 Ne2 b5 Bg2 b3 Bf1 d6 Ng1 Qd7 Ba3 Qf5 Bc5 b4 Bh3 Qd7 Bf1 Qb5 cxb5 dxc5 Ke2 Kf7 Ke3 g5 a4 Kg7 h4 e5 f4 c4 a5 c5 a6 c3 a7 c4 Qc2 b2 Ne2 b3 Qd1 c2 Ra4 c1N Qe1 g3 Rb4 g2 Ng3 g1Q+ Qf2 c3 Bc4 c2 Ne2 g4 Ra4 g3 Na3 g2 Rb4 Nf6 Bd3 Rg8 Rc4 Bf5 Rc7+ Kh8 Nb1 Qd1 Nd4 g1Q Rh3 Rg2 Nc3 Ba3 Nc6 Bh7 Bf1 Nd3 Rb7 c1Q Be2 Qh1 Qf1 Nf2 Bg4 Qb1 Qe2 Qdg1 Qc4 Qbd1 Bc8 Bg6 Rf3 Qh3 Rg3 Qd7 Rf3 Qd8 Rh3 Qh5 Nd1 Qf5 Ke2 e3 Kf3 e2 Ke3 e4 Ne5 Qe7 Kd4 N2g4+ Nf2 e1R d3 Bh5 Rc7 Qd8+ Rd7 e3 Ba6 Ra1 Kc3 Qe4 f5 Qf3 Kd4 Rc1 Qd5 Rc6 Re7 Re6 Rb7 Nfd7 Qc4 Re7 Nc6 Re4+ Kd5 Rd4+ Ke6 Ndf6 Ne5 Nbd7 Ne4 Rc8 a8Q Nb8 Nf2 Re4 Qb4 Rcc4 Qa4 Rcd4 Qc4 Be8 Nd1 Bc6 Kf7 Bd5+ Kg6 Bf7+ Kg5 Bh5 Nf2 Nbd7 Qa7 Nh6+ Rg3 Qe2 Rb6 Nb8 Qaf7 Bf3 Kg6 Nhg4 Rh3 Qef1 Rb7 Bd1 Nh1 Qf3 Nf2 Bc2 Qg8+
2N2qnb/1RrPPR2/rp5b/2q1P2q/4NbQP/1p1K2Q1/r2Bp3/1n4k1 b - - 0 1 illegal: No possible last move, all moves rejected
b3qr2/1N3B2/q2p3p/q2R1P1n/4q2q/Rb1p1nP1/1PPQNQ2/bk3K2 b - - 0 1 illegal: Other
BbN5/2q3P1/3nPQpR/rPPK3p/3pp1r1/2R3k1/r1nQr3/B3b1r1 b - - 0 1 illegal: No proof kernel
4K2R/1P3pqb/3Q1Pp1/p1N2q2/1rQ2PrN/BPqnkp2/2nnr3/5R2 b - - 0 1 illegal: Other
n4Nk1/r3N2r/1nBR1K2/bpr5/bP2P1q1/Pn1qB1Q1/1r1Pb3/1n2Qn2 b - - 0 1 legal: proof: c4 e5 b4 d5 f4 dxc4 h4 exf4 a3 g5 Bb2 gxh4 Bc1 a5 Ra2 a4 Rb2 Bg7 Rb3 axb3 Qc2 Bh6 Qd1 Bf8 Kf2 f5 Kf3 Kf7 e4 c5 g4 h5 g5 c3 Bb2 c2 Ne2 c1R Bg7 h3 Qe1 h2 Nbc3 c4 Nd1 c3 Bf6 h4 Nd4 h3 Ne3 c2 Be2 b2 Qf2 b1N Qg1 Na6 Qg4 Bd7 Qh4 Ra7 Qh6 Nc7 Ne6 Na8 Ba1 Bc5 Bd1 Bb6 Bb2 Ba4 Nf1 Ne7 g6+ Kg8 g7 Qd3+ Ne3 Ba5 Rf1 h1Q+ Kf2 b5 Qh5 f3 Kg3 h2 Kf4 f2 Ke5 f4 Nc4 f3 Qh4 Qg2 Bd4 h1R Ne3 Nc8 Nd5 Ncb6 Kf6 Qg4 Be3 Rh7 Nf8 Rh3 Rg1 f1B Qe1 f2 Rh1 Rg3 Rh6 Rh3 Bf3 Be2 Bg2 Rh5 Bh3 f1N Rg6 Rd1 Rh6 c1N Rg6 Qg1 Bd7 Nb3 Bc6 Qg4 Bf2 Rc1 Bc5 Qgf3+ Ke6 Rc2 Be3 Rb2 Rh6 Rh4 Ke5 Kf7 Ne7 Qh3 Rg6 Qhd7 Rd6 R4h5+ Kf4 Rc5 g8Q+ Ke8 Qgg3 Kf7 Nf5 Qc8 Kg5 Kg8 Kf6+ Rhg7 Nh4 Qg4 Nf5 Rh7 Ne7+
3K4/Pp1R1Qb1/3NR1r1/2PQnq2/PP1n4/3rB1qr/1r1q1rN1/2q2knb b - - 0 1 illegal: Other
1n1N1bbN/q4qq1/3k1p2/1Pq1R2Q/2nPrbBK/Pr6/3B1PQ1/3nr1n1 b - - 0 1 legal: proof: c4 d5 b4 b5 e4 dxe4 h4 bxc4 b5 a5 a3 g5 Ra2 gxh4 Rb2 Bh3 Rb3 Bc8 Rb4 axb4 g4 Kd7 d4 h5 g5 c5 g6 e5 g7 h3 Bh6 f6 Qg4+ Kd6 Qe2 e3 Nd2 h4 Qf3 e4 Rh2 c3 Rg2 c2 Qh5 c1Q+ Ke2 h2 Qg6 h1Q Qh7 h3 Ndf3 h2 Bg5 b3 Bh6 b2 Qf5 b1N Rg5 c4 Nh4 c3 Ngf3 c2 Rg4 Qb6 Qh5 Nd2 Rg6 Nc4 Qg5 Qg1 Qg4 h1Q Ng2 Qh5 Nfh4 Ne7 g8Q Qa7 Nf4 Be6 Nf3 Nd5 Rg7 Qhf7 Bg5 Rh3 Ne1 Qg3 Bg2 Nc3+ Kf1 Nd1 Qh5 e2+ Kg1 e3 Ned3 e1N Ne5 e2 Neg6 Qg4 Nh8 Rb3 Kh2 Bd5 Ne6 Nf3+ Kh1 Ng1 Kh2 e1R Bd2 Re4 Nd8 Be6 Rh7 Qgg7 Bf3 Bd5 Bg4 Be6 Ba5 Qcg5 Bb4+ Qgc5 Bd2 c1B Rh6 Re1 Rg6 Bd5 Rg5 Be6 Re5 Re4 Bc3 Bf4+ Kg2 Re1 Bd2 Qe8 Qgf7 Bh6 Qb7 Bg8 Re4 Bf4 Ne6 Na6 Re2 Rc8 Qa8 Rc7 Nd8 Re7 Re4 Nb8 Re3 Bg5 Kg3 Bf4+ Kh4 Qef7 Qg2 Re6 Re5 Re8 Rf5 R8e4 Re5
nb5R/rbpR1KnB/1nn1rP1p/Pq1P1b1P/2kB1NQ1/5Qn1/r7/1q6 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 axb4 Nc3 d5 Nce2 dxc4 Nf4 gxf4 Kf2 Kd7 h4 Kd6 d4 Kd5 a4 b5 g4 e5 h5 h6 f6 e3+ Kf3 e4+ Kg2 b3 Kh3 b4 Kh4 c3 g5 c2 g6 e2 g7 e1N Rh2 b2 Qg4 b1Q Ra2 f3 Bd3 e3 Ba6 b3 Be2 f2 Bf3+ Kc4 Bb2 c1N Ra1 f1N Nh3 e2 Nf4 Nd7 d5 Na2 Bc1 b2 Rh3 Bb7 Bg2 Nb6 Bf3 Qe8 Qg1 Nd3 Ng2 e1R Qh2 Nf4 Bd2 Ng3 Bc3 Bc5 Be4 Qb5 Kg4 Ne7 g8Q Nec8 Qh1 Nb4 Bd4 Nc6 Bh7 Ne6 Nf4 Ra7 Qf3 Na8 Rh2 Re4 Rg2 Ng7 Re2 Re8 Re7 Ncb6 Rd7 Re6 Qc8 Rhe8 a5 Re2 Ra3 R8e6 Rb3 Qf1 Re3 b1B Qg8 Ra2 Re2 Rd6 Re8 Bc2 Qe6 Qfb1 Rh8 Bf5+ Kh4 Bc2 Qeg4 Nc8 Bg6 Ra6 Qh3 Ba7 Kg4 Re6 Bh7 Bb8 Qh4 Ncb6 Qg5 Ne8 Qg6 Ra7 Qg8 Ne4 Kf5 Bd3 Kg6 Ng3+ Kf7 Bf5 Qg5 Ng7 Qgg4
1nr1rR2/nR6/pPNnQQ2/Bq3n2/P1Np1b2/1rP3P1/n2bK1b1/kq6 b - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 Rh2 c5 Rh1 cxd4 e3 gxh4 a3 b5 Bc4 b4 Ba2 b3 Ke2 bxa2 Kd2 Ke7 Ke1 Ke8 b4 Ke7 g3 Kd6 a4 Kd5 e4+ Kc4 b5 h5 e5 f5 b6 d5 e6 d3 e7 a6 e8Q d4 Qe3 d2+ Ke2 f3+ Kf2 h3 Qe6+ Qd5 Qee1 h2 Qe6 h4 Qe7 f4 Nc3 h3 Rb1 a1B Qb7 Bd6 Nce2 Bc3 Ra1 Qb5 Kf1 f2 Rb1 Ne7 Qe4 Bb7 Qf3 Nc8 Qh5 Na7 Qg4 Re8 Qe1 d1N Rb2 Bd2 Qh5 Nc3 Qh7 Na2 c3 Bf3 Rc2 Kb3 Ba3 Be4 Bb4 Bd5 Rc1 Kb2 Nf3 Bb7 Rg1 h1R Qc7 h2 Kg2 f1N Kf2 Ne3 Qe7 Nf5 Ne5 f3 Nc6 B6f4 Rf1 Nd6 Qf6 Rg1 Ba5 h1Q Rd1 Qh7 Nc1 Ka1 Qee7 Qhb1 Nd3 Rh1 Nb2 Rh5 Kg1 f2+ Kg2 Re5 Kf3 Re2 Rh1 f1N Rh7 Ne3 Nc4 Nef5 Qee6 Rh2 Rg7 Rh1 Ke2 Rh5 Nd8 Bg2 Rf1 Rh1 Rf3 Rc1 Re7 Rc2 Rb7 Rb2 Nc6 Rb3 Qf8 Nd7 Qf6 Rac8 Rf1 Nb8 Rh1 Rb4 Rh8 Rb3 Rf8
4n3/3KQbb1/Pq4p1/rn2r1Pb/1P2BN1P/p1k1q1qR/4Q2n/qrB3R1 b - - 0 1 illegal: No proof kernel
q1B5/3K2Q1/r4p2/1prb3N/1b2NPP1/q2bQRbr/PP1nn1R1/n2n3k b - - 0 2 legal: proof: h4 b5 c4 bxc4 e4 d5 h5 dxe4 d3 g6 Bf4 gxh5 Be3 h4 Bb6 axb6 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 g4 e5+ Ke3 c5 f4 h5 d4 h3 Nd2 b5 Bd3 h2 Ngf3 h4 Qb1 c3 Qc2 c4 Rag1 h3 Rd1 Ra6 Nb1 Nd7 Nh4 Nc5 Qa4 c2 Nf5 c1N Nh4 c3 Rhf1 h1N Rde1 c2 Nd2 h2 Qb4 N5b3 Be2 Bf5 Nhf3 Nf2 Bd3 h1B Nh4 Qa8 Rd1 Ne2 Qa4 c1R Rde1 Bb4 Nhf3 Nf6 Bb1 Na1 Ng5 Rc5 Rg1 Rh3+ Rg3 Bg2 Qa3 Bf3 Qc3 Bg6 Nf1 Nd1+ Kd2 Bh1 Rg2 Bf5 Ng3 Bg6 Rf1 e3+ Ke1 Ne4 Rf3 f6 Nh5 Nd2 Bf5 Bh7 Bc8 Bd3 Nh7 Ke4 d5 Rh2 d6 Rh3 Rh2 Bg2 d7 Bh1 d8Q Bg2 Rg3 Bh1 Rgg2 Kf3 Qe7 e4 Qg7 Rg3 Rh4 Rh3 Rg1 Bg2 Qb3 Bh1 Rf1+ Kg2 Ng5 Kh2 Rg1 Bf3 Rg2+ Kh1 Qc3 Ng3 Qa3 e2 Qb3 Nc3 Kf2 e1B+ Ke3 Nd1+ Kd4 e3 Qe6 e2 Qe3 Bf2 Ne4 e1Q Nd6 Bb7 Ne4 Qe2 Qh6 Qf3 Qg7 Rcc6 Kd5 Ne2 Qg8 Bg3 Qg7 Bd6 Ke6 Bb4+ Kd7 Rc5 Qg6 Bd5 Qg7 Bc2 Qd4 Qa3 Qe3 Rh2 Rh3 Bd3 Qh7 Be1 Rhg3 Rh3 Rf3 Bg3 Qg7
5q2/1Qr2q2/1N1p1P2/2P1R3/1b3rQ1/Rkb1rPKB/2bP1pn1/2nnr1Nb b - - 0 1 illegal: Other
1Bq1br2/1b6/bP1KB2b/2NQn3/pkbP3P/2p4Q/P2n1r2/rR2rR1b b - - 0 1 illegal: No proof kernel
4r2n/p1RkPN2/Q7/1p2PnR1/qP2prPn/1bn1BQb1/1Kn5/2rB1b2 b - - 0 1 illegal: Other
2N5/1Pr1Rbk1/bp1bP1Pp/1QR2qbK/pb6/2q4P/2n4n/BB1r1Q1r b - - 0 1 illegal: No proof kernel
1br1b3/2q2p1n/1p3P1k/N3q3/1QB2PPB/b1r2r1P/2p2NR1/q1n2KbQ b - - 0 1 illegal: Other
1q1Q1B2/n1P1RbpP/rPp5/2P2q2/3kr3/bb4n1/NpnKQ3/bB3r1N b - - 0 1 illegal: Other
4R2q/3RbNpQ/PB2q2r/1bQ1rp2/1bb1p1b1/Pb1N4/1P2P3/nnk2K2 b - - 0 1 illegal: Other
2R1r3/pb5P/1nrp3K/Pn1k1b1n/r2R3P/4QQbq/1B1P1p2/2r1B1nN b - - 1 2 illegal: Other
4Kn2/PNb1Q3/rrBpp1p1/Bn2nb2/R1b3r1/QPrP2R1/bP6/2qk4 b - - 0 1 illegal: Other
bNK5/qp1rRBP1/r5n1/P2P4/nQ3bN1/1b2p3/kP1prQ1B/3r1n1n b - - 0 1 illegal: Other
5Q1k/q2p1r1q/PbR1BN1p/1bnpq1nQ/Rn6/PPq2n1P/5K2/r1B5 b - - 0 1 illegal: Other
5Rnq/1Pkqrb1N/r3p3/r1PnB1p1/1p1Q2N1/b1Q3K1/nR1PPr2/4n3 b - - 0 1 illegal: No proof kernel
3RQN1K/p1prpb2/p1q5/1rP2qn1/1R2P1nP/BrQ5/1P3bqB/3n3k b - - 1 2 legal: proof: c4 f5 g4 fxg4 a4 d5 a5 h5 a6 bxa6 c5 g3 Bh3 Kf7 Na3 Ke8 Bg4 hxg4 Nc4 dxc4 f4 Kd7 h4 Ke6 e4 g5 Ke2 c3 Ke3 g2 d4 c2 Qf3 g3 Qf2 g4 Qe1 Qd7 Rb1 Bh6 Nh3 g1N Qd2 g2 Qa5 g3 Qb4 Nf3 Rf1 g1Q+ Nf2 g2 Bd2 c1R Qc3 Nc6 Rd1 Qf1 Ng4 Na5 Ne5 Rb8 Ng6 Nf6 Ra1 Rb3 Ra4 Ng5 Rb4 Qc6 Be1 Bg7 Rd2 Rd1 d5+ Kd7 Kd4 g1Q+ Ke5 Ng4+ Kf5 Nc4 d6 Bd4 Bg3 Be3 Bh2 Qgg2 Rd4 Bf2 Nf8+ Kd8+ Kg6 Nce3 Kg7 Be6 f5 Bf7 f6 Rh6 Nh7 Kd7 Kh8 Ke6 d7 Rd3 d8Q Nd1 Qe8 Rg6 Bg1 Ke5 Nf8 Kf4 Rd8 Kg3 Bh2+ Kh3 Qc1 Rd7 Qc2 Bd5 f7 Rf6 Qc3+ Rf3 Rd4 Rb5 Rb4 Bc4 Ng6 Bd5 f8B Bf7 Bh6 Rg3 Nf8 Re3 Bf4 Red3 Bd2 Kh2 Bg7 Kh1 Be5 Re3 Bh2 Rf3 Qf6 Ra3 Qc3 Rb3 Ra4 Nge3 Qe5 Ng4 Bb4 Bg3 Qc3 Qf5 Ba3 Bf2 Rb4
q1bqRk2/1pqp4/N4b2/1P3Bp1/8/KN4P1/P4PQp/rrnQBnnb b - - 1 2 illegal: No proof kernel
1QNK3b/rP2Rbb1/1p3nr1/1n3k1p/1P1P1Qp1/2n1n1P1/2pRr3/qB5N b - - 0 2 illegal: Other
2n2r2/r5q1/1QrpB2p/1PPR2Nb/rN1n1bQP/3pqBp1/1K1P2kr/8 b - - 1 2 legal: proof: b4 b5 g4 e5 a4 bxa4 b5 c5 Bb2 f5 Bd4 fxg4 Ra2 exd4 Rb2 Nc6 Rb3 Nb8 Rb4 cxb4 f4 Kf7 c4 Ke6 e4 g5 e5 Kf5 e6 Ke4 h3 a5 e7 g3 e8B d6 f5 a3 f6 a4 f7 b3 Ne2 Kf3 Nbc3 g2 Qc1 g1Q Kd1 b2 Kc2 b1R Qb2 g4 Nf4 g3 Nce2 a2 Nh5 a1R Ng7 d3+ Kc3 a3 Qb4 a2 Qa5 Nc6 Qa6 Bg4 Qc8 Qe7 Nf4 Rc1+ Kb2 Nd4 Bd7 Bh5 Nge6 Bh6 f8Q Qg7 Qfd8 Ne7 Qb6 Qe3 Nd5 Bf4 Be2+ Kg2 Ng5 h6 h4 Ra4 Nb4 Rf8 Rf1 Rc3 Rf3 Rh1 Be6 a1R Qd7 Rh2 c5 Nc8 Rf1 Rca3 Bd1 Ra7 Rf3 R3a6 Be2 Be5 Rf5 Bf4 Rd5 R1a4 Bf3+ Kf1 Qa5 Rc6 Qb6 Kf2 Bg8 Kf1 Qg4 Kf2 Be6 Kf1 Be2+ Kg2 Bf3+
kR2rq1R/P1Kp2b1/pP1Bq1b1/2bBq1p1/2QN2P1/4nPn1/6p1/2Q3qr b - - 0 1 illegal: No proof kernel
3q1nk1/1Q3p2/1N1rbP1K/1N2b2n/BP1p1n2/7P/P3p1p1/Qb1bRrqR b - - 0 1 illegal: No proof kernel
2b5/1k3Br1/pP1R2nP/q2Pr1pr/3N2n1/3p4/qrQPqQKp/R1bN4 b - - 0 1 illegal: Other
6b1/n3Q1p1/1qQ2BRp/1P2bpr1/1q1b2nN/2PqRP1q/p2rB2P/K4k2 b - - 0 2 legal: proof: d4 b5 a4 bxa4 g4 f5 d5 fxg4 Na3 e6 Nc4 c6 Ne3 cxd5 Nf5 exf5 Ra2 d4 Ra3 Qe7 Ra1 Qd8 Kd2 Ke7 e4 Kd6 b4 Ke5 c3 Kf4 f3 d5 e5 a5 b5 a3 e6 a2 e7 d3 e8Q d4 Qc2 a4 Qe6 a3 Qb1 g3 Bb2 g2 Kc1 d2+ Kc2 d3+ Kb3 d1Q+ Qc2 d2 Qa6 Ke3 Qd6 Kf2 Qd3 Qb6 Ne2 g1B Qd6 Nh6 Qf4 Be6+ Qc4 Nc6 Bh3 Na7 Nf4 Bg8 Qe6 Qf1 Qe4 Ng4 Bc1 Bd6 Ng6 Be5 Qc6 Rd8 Nh4 Qg2 Kc2 Kf1 Qe7 Rd7 Rb1 a1Q Rb4 a2 Re4 Rd6 Re3 h6 Ba3 Rg6 Bc5 Qd1+ Kb2 Qb3+ Ka1 Qb4 Bd4 Rg5 Re2 Bb8 Bf6 Be5 Re3 Bc4 Re2 Rd8 Re3 Bg8 Qed7 Kf2 Qe7 Qg3 Bf1 Qh3 Bd3 d1Q+ Bb1 Qe2 Bc2 Rd2 Bd1 Qef1 Rd3 Ke1 Rd6 Be3 Rd3 B3d4 Rg1 Kf2 Re3 Qd3 Rg2+ Kf1 Rg3 Nf2 Rg4 Rh5 Rg5 Ng4 Rg6 Rg5 Be2+
3K1Q2/P1nRB1r1/1N2ppP1/4rp1b/Qq2p1pr/R1b1nBP1/q2P4/2k2q2 b - - 0 1 illegal: Other
7r/PQ2PPKR/2p4n/1B1rpb1p/p3PpRQ/3Nqn2/nb3b2/k2Nq3 b - - 0 1 illegal: Other
r1B2K1R/2p2bpp/rq6/3n1QPq/2ppN2P/1k3P2/P2qRb2/3NbQn1 b - - 1 2 illegal: Other
q3qB1N/p4Bqr/1Qk2rpn/b6p/nP4PR/1p1P2rP/1p5Q/2NK3b b - - 1 2 illegal: No proof kernel
2KRn2r/1Pnp3B/3p4/p1qqp2p/1Pb1r3/4b1b1/Q2PPrNR/5kQN b - - 0 2 illegal: Other
r3Rqn1/2pnrQQ1/3PPrp1/1r5p/R2r4/1p1bN1pP/P1k3N1/K1B1b3 b - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 d5 f5 d6 fxg4 Bg2 e6 Bd5 exd5 Kd2 Kd7 Kc2 Kc6 Kb2 Kb5 f4 h5 e4 c3+ Kc2 Kc4 h3 b5 e5 d4 f5 g3 e6 g6 f6 Nd7 f7 Rh7 Qg4 b3+ Kd1 Kd3 Bb2 b4 Kc1 c2 Qg5 Ba6 Nf3 Bg7 Nh4 Qf8 Rf1 Bf6 Ba3 Bc4 Kb2 c1R Rf4 Rf1 Nd2 Bh8 Re4 Rf6 Kb1 b2 Qf4 Kc3 Nf1 d3 Ng2 d2 Nfe3 Bg7 Re5 Be2 Ra5 Bd3+ Nc2 Bh6 Ra4 Bg5 Qf5 Be3 Qf4 Bf2 Qh6 Be1 Qg7 Qc8 f8Q Qb8 Qh6 Re7 Qf7 d1R+ Qc1 Bb5 Nce3+ Kd3 Qg7 Rd2 Qc5 Qf8 Qg5 Kc3 Qf7 Rd4 Qh6 Kd2 Qhg7 Ke2 Kc2 b1R Bc1 Rb3 Rb1 Ba6 Bb2 Bc4 Kc1 Kd3 Ba3 Bb5 Rb2 Ba6 Kb1 Kc3 Ka1 Bd3 Rb1 Kd2 Nd5 Kc2 Bc1 Rc3 Rb3 Rc5 Rba3 b3 Nde3+ Kc3 Ra6 Rcf5 R3a4 Rb5 Rb6 Ra7 Rb8 Ra8 Ba3 Kd2 Re8 Kc3 Bb2+ Kd2 Bc1+ Kc3 Nd5+ Kc2 Nde3+
NR1q1Q2/2pP1pB1/K2PnB1b/2P2q1b/2p1nP2/1rpp1rRp/1k1r4/4Q3 b - - 1 2 illegal: Other
3r2nk/PBP1BK1P/P1q5/qr2r3/4rp1r/2N1N3/1q1n1rR1/R2Rb3 b - - 0 1 legal: proof: f4 h5 b4 c5 e4 d5 a4 e5 d4 exf4 g4 hxg4 a5 b5 Qd3 Bb7 Qf3 cxd4 Qa3 d3 Qa4 bxa4 b5 a6 bxa6 d4 Ra3 Qc7 Ra1 Bd5 exd5 Qd8 Kf2 g5 h4 f5 c4 Kf7 d6 Kg7 a7 f3 Kg3 f2 a6 f4+ Kh2 d2 h5 d1Q d7 a3 c5 g3+ Kh3 d3 c6 g4+ Kg2 d2 Ra2 Bb4 Rh3 Qc2 Ne2 d1R Nd4 Be1 Rh1 Qa5 d8R Nd7 c7 Nb6 Nd2 Rb8 Nb1 Qc6+ Nf3 Nc4 Be3 Rb5 Bc5 Nd2 Be2 f1R h6+ Kh7 Rb2 a2 Nc3 a1Q Be7 Qc1 Ra2 Qb2 Bc4 Re5 Bd5 Rb1 Nd4 Rf2+ Kg1 g2 Kh2 g3+ Kh3 g1R Kh4 g2 Nc2 Rgf1 Ne3 g1R Ra1 Rg7 Rh2 Rh1 Rd6 Re4 Kh5 Rg4 Rd8 Rh4+ Kg5 Rhf1 Rg2 Re2 Kf5 Rff2 Kg5 Qba2 Kf5 Rb5 Rd7 Qb2 Rd6 Rd4 Ke6 Re4+ Kf7 Re5 Ng4 R2e4 Ne3 Nf6 Rd7 Rd8 Rd6 Kh8 h7 Ng8 Rd7 Qcb6 Bb7 Qc6 Rd5 Nb3 Rdd1 Nd2 Ba3 Rde8 Bd6 Rd8 Be7
1b4B1/2b1PnB1/1RN3n1/k3Prnr/NpK2nrP/P4q2/1q5n/1qR1B3 b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 g6 dxc4 Nf3 hxg6 Ng1 g5 Qc2 g4 Qb3 Na6 Qd1 Nb8 d4 Nc6 e4 Rb8 d5 Ra8 Qd4 exd4 f3 Bf5 e5 Be4 fxe4 Nb8 Kd2 Kd7 h4 f5 a3 c5 e6+ Kc7 e7 Kb6 d6 g5 Rh3 d3 Be2 b3 Kc3 g3 Bb2 f4 Ra2 d2 Nf3 d1Q Rh2 g2 Rh3 g1N Ba1 g4 Rd2 b2 Ne1 f3 Rd4 f2 Bd3 f1N Rh1 g3 Bc2 g2 Rd2 Rh5 Ba4 Nh3 Nf3 g1R Bc6 Nd7 Rc2 Nh6 Rc1 Nh2 Bd5 Ng5 Ne5 Qf3+ Nd3 Ka5 Rf1 b5 Bg8 b4+ Kd2 c3+ Kc2 c4 Nc5 Ne5 Be6 Rg4 Rhg1 Ng6 Bg8 Nhf7 Nd2 Rc8 Na4 Rc5 Rf2 Rf5 Rc1 Bg7 d7 Be5 Rff1 Bb8 Rg1 Qb6 d8B Bc7 Rge1 Qbf2 Re3 Q2e2 Rd3 Qeg2 Rd6 Qge2 Rb6 Qef2 Kb1 c2+ Ka2 c3 Kb3 b1Q+ Kc4 Bb8 Bc7 Q2g2 Rh1 c1N Bg3 c2 Bg7 Ne2 Be1 c1B Rf1 Nef4 e5 Bb2 Rg1 Bd4 Rh1 Bc5 Rf1 Bcd6 Rh1 Qfd1 Nf3 Bdc7 Nd4 Qbb2 Bf2 Qdb1 Rc1 Qb7 Be1 Qf3 Nc6+
bq2k1K1/4rp2/q1q1R1p1/PB1n3b/3P3P/1q1R2B1/4P2N/nN1brq1N b - - 0 1 legal: proof: c4 e5 f4 exf4 b4 d5 h4 dxc4 Qc2 a5 Qg6 axb4 g3 Be7 h5 Bh4 gxh4 h6 Qg5 hxg5 Kf2 b5 Kf3 c5 Ke4 f3 Ke5 g4 a4 b3 d4 f2 h6 b2 h7 c3 Bf4 b4 Bh2 c4 Ra3 g3 Rb3 g2 Ra3 b3 Bf4 c2 Rh2 c1Q Bg3 c3 Nh3 g1Q Rh1 c2 Bh2 Nc6+ Ke4 Bb7 Kf5 Nf6 Ng5 Nd5 Bf4 Ncb4 Bh2 Qd1 Ra1 c1Q Na3 b1B+ Ne4 b2 Bh3 Qc6 Bg3 Bc2 Nb1 f1Q+ Ke5 Qa5 Nf2 Qaa6 a5 Rc8 Ra3 Qh2 Rd3 Ba8 Rg1 Ba4 Be6 Nc2 Nh1 Na1 Bf5 Rf8 h8N Qb3 Ng6 Rc7 Rg2 Rg8 Bg4 Rd7 Rf2 Rc7 Rf6 Rb7 Re6+ Re7 Nd2 b1B Bh3 Bc2 Nb1 Bd1 Bg2 Bc2 Bf3 Bd1 Kf5 Bb5 Ne5 Bc4 Ng4 Bb5 Bf2 Qb8 Nh2 Bc4 Bg3 Bb5 Rde3 Bd3+ Kg5 Bf5 Rd3 Bg4 Be4 g6 Kh6 Bh5 Kh7 Kd7 Rc3 Rc8 Bd3 Ke8 Kg8 Rc7 Bc4 Rb7 Rd3 Rb5 Bd6 Rc5 Bb5 Rc1 Ree3 Bc2 Bc7 Re1 Bg3 Bd1 Re6
2B1r1bb/nq5b/3b1Bk1/1PNpR3/PK1N2r1/1PR2N1b/1P3qp1/rr6 b - - 0 1 illegal: Other
1r2n3/p4K2/2kP4/2Rp1R2/1bP1BBrP/1NrP1pR1/1q1q1qn1/5brN b - - 0 1 legal: proof: f4 d5 g4 e5 e4 exf4 a4 b5 g5 bxa4 g6 hxg6 e5 g5 Qh5 g4 Qh6 Qg5 Qd6 cxd6 exd6 Qd8 Kf2 Kd7 c4 g5 b4 f5 b5 g3+ Kf3 g2 h3 g4+ Kf2 f3 Kg3 f2 Kf4 g3 Ke5 f4 b6 a3 b7 a2 Kf5 Kc6+ Kg6 Na6 b8R Nb4 Ne2 g1R Rb5 g2 Ba3 Bg7 Rb7 Nd3 Rb5 Bc3 Rh2 Qa5 Ng3 Nf6 Rh1 Ne8 Bc1 Bb4 Ne4 Rb8 Ng3 Ne1 Bd3 f1Q Be4 Qf2 Kf7 f3 h4 Rg8 d3 Bh3 Nd2 Rg4 Nb3 Qb2 Rb1 a1R Bf4 Qaa2 Rd1 Rc1 Rd2 Qa5 Re2 Rc3 Rh2 Qaa2 Nh1 Qd2 Re3 Qab2 Ra5 Rf1 Re2 g1Q Rhg2 Qf2 Rg3 Rg1 Rb5 Bf1 Rc5+ Kd7 Bh7 Ng2 Re5 Qfe2 Be4 Qf2 Ra5 Kc6 Rf5 Nf6 Rb5 Ne8 Rc5+
1nb2RK1/pnbPrN2/Bq2bp2/N6R/p1b2P2/k6B/2P1n2P/r2q3R b - - 0 1 legal: proof: b4 b5 e4 d5 exd5 g5 a4 bxa4 b5 g4 b6 cxb6 Ra3 b5 Ra1 b4 f4 h6 Qf3 gxf3 g4 Na6 g5 Bh3 g6 Nb8 Bb2 Bg4 Bf6 Bc8 Bg5 hxg5 Kf2 Nd7 Ke3 e5 Ke4 Ke7 Kf5 Kd6 d4 g4 g7 e4 Be2 b3 Ba6 f2 Ra2 f1B Bb7 Rb8 Ra1 f6 Kg6 g3 Kf7 e3 Bc6 g2 Nh3 g1N Bb7 e2 Na3 e1Q Ng5 b2 Rc1 b1B Nf3 Nc5 Ne5 Ne7 g8B Nc6 Bh7 Ba2 Rb1 Qd1 Bf5 Rh7+ Kg8 Bh3 Bd7 Ne2 Ba6 Rb2 Bg4 Nb8 Bf5 Rb6 Rb5 Nb7 Ra5 Rb1 Nac4+ Kc7 Rb5 Ra1 Na5 Bc4 Be6 Rd7 Nf7 Bf5 Rc5+ Kb6 d6 Qc7 d5 Be7 Rf1 Bd8 Rh1 Re7 Bd7 Bg6 Bh3 Bgf5 d7 Qc6 d6 Bc7 d8R Bfe6 Rh5 Qb5 Rh4 Kc5 d7 Kb4 Re8 Ka3 Rf8 Qb6 Rh5
1RBK1b1n/r7/1pNn4/qR1P2B1/1P2Pnr1/2P2nb1/q4r1R/bbn1k1N1 b - - 0 1 illegal: No proof kernel
k4bbr/5P1q/B2p1n1P/R3pNqn/2B2B1R/q3P1b1/P1Nb2nr/5bK1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 g5 axb4 g6 h5 Bg5 h4 Bc1 fxg6 Qd2 g5 Qf4 g4 Qg3 hxg3 f4 g5 c4 b5 h4 e5 h5 b3 c5 b2 f5 b4 f6 d6 c6 d3 c7 Kd7 f7 Kc6 Bf4 Kb7 Rh3 b3 Rh1 g2 Kf2 d2 Nf3 g1B+ Kg2 d1N Nh4 g3 Ng6 g4 Nh4 Qg5 Be3 Nf6 Bb6 Be3 Ba5 Bd2 Bb4 Nbd7 Ba5 Ne3+ Kg1 g2 Kh2 g1B+ Kg3 Bh2+ Kf2 g3+ Kf3 g2 Kf2 g1Q+ Kf3 Bg3 Na3 b1Q Bb6 b2 Nc2 Ng2 Nf5 Qc5 Rh4 Qa3+ Be3 Ra4 h6 Ka8 Rh5 Rb4 Rh4 Ba6 c8B Rb8 Ra4 Nh5 Ra5 Ndf6 Be6 Rb4 Bb3 Rh4 Bf4 Rh2 e3 Qc1 Bb5 b1B B3c4 Qcb2 Ke2 Qd4 Kf1 Qe4 Ncd4 Bd3+ Kg1 Bf1 Rb1 Qc2 Rb4 Bd3 Nh4 Bh7 Nhf5 Qcd3 Nc2 Bg8 Nfd4 Qh7 Nf5 Kb7 Bd7+ Bb5 Bc8+ Kb8 Ba6 Ka8 Be6 Be2 Re4 Bf1 Bec4 Qgg6 Bg5 Qgg7 Rh4 Qgg6 Bf4 Qg4 Ng7 Qg5 Nf5
N1qrb1k1/Bqb2rpB/N7/bp4PP/3rn1PP/1bR1K1BR/1n3n1r/8 b - - 0 1 illegal: Other
2BRN1rR/rPkNp3/8/PPb3np/b3r3/n3P3/bn1B1B2/qqr1nK2 b - - 0 1 illegal: Other
3rq3/nn2R3/P5Nn/b1p2b2/1N1BnnpP/P1P1N2p/1r1bk3/1B1r1RK1 b - - 0 1 illegal: Other
3K1R2/N1BP1Pbr/2qB2p1/3Pr3/nN2pRP1/1b1Bq1n1/1prrr3/3nk3 b - - 0 1 illegal: Other
BR6/1P1qB1nb/n4Np1/1q1BPpK1/Pq4P1/1r1pk3/N3rb1n/2R1n1n1 b - - 0 1 illegal: No proof kernel
rN4K1/b3p3/1NnP1qPk/1B1R1r1n/p3P1p1/Pqr5/1R5R/r1Br1bn1 b - - 0 2 legal: proof: g4 b5 f4 d5 e4 g5 b4 d4 c4 bxc4 d3 Na6 Na3 Nb8 Be3 gxf4 g5 h5 Qg4 hxg4 Rc1 Nd7 Rc2 Nb8 Rc3 dxc3 Kf2 a5 h4 c5 d4 f5 d5 Kf7 h5 Kg7 b5 f3 Kg3 c2 Kf4 c1R Ke5 c3 b6 f4 b7 a4 g6 f2 d6 c4 Bc5 c2 Bb4 f3 Be2 f1R Nb5 c3 a3 f2 Rh4 Kh6 Bd3 Nf6 Nf3 Ra1 Nd2 c1R Be2 c2 Nc7 Rfd1 Nc4 f1Q Nb6 Bg7 Na6 Qg8 Bb5 Qb3 Rh2 Rf8 Bc3 Be6 Bb2 Bc4 Rd2 Qf2 Rd5 Bf1 Ke6 Nc6 b8R Rd3 Nc8 Rc3 Nb6 Rd1 Bc1+ Qf4 Rb7 Rf7 Nb8 Rf8 Bd2 c1N Be3 Ne2 Bc1 Rg8 Kf7 Ng1 Ra7 Bh8 Rb7 Ra5 N8d7 Rga8 Nb8 Ne8+ Kg8 Bd4 Rd7 Ng7 Rd8 Nb4 Rf8 Qg5 Rf2 Nc6 Rb2 Ne6 Nd7 Ba7 Nb6 Nf4 Rc2 Qe5 Rb2 Kg5 h6 Qf5 h7 Kh6 Rd2 Nh5 h8R+ Kg5 Rh7 Qe5 Rf7 Kh6 Rff2 Qf6 Rh2 Rf3 Be2 Rc5 Bd3 Rf5 Bb5 Rc3 Rb2+
2R3nq/Bp1B3r/p1qr2R1/r2P3p/1kN5/3R1n1P/1PK1NqbP/b1n4q b - - 1 2 illegal: Other
2bb1rkr/3P2P1/4B1P1/rnBpR3/1K3N2/2pqr1pb/1RNP1b2/1n4Bq b - - 0 1 illegal: Other
rn2r3/8/pp2R1K1/k1nbP1Bn/1bp2NP1/P1bRP1qq/Bn1N1R1b/8 b - - 0 1 illegal: Other
Rb2n3/2PRR2p/bp4p1/1b1K1P1B/Pr3qp1/B3q1qP/3N2n1/nNk1r3 b - - 0 1 illegal: No possible last move
B3R1N1/1qnK2P1/4pbBn/Nkp1rprn/p7/R1PBn2b/P1q3P1/1b6 b - - 1 2 illegal: Other
2R5/nnk5/p1n1p2N/PBr1Pp2/p6R/4b1PP/KB1rbqNp/2Nq1n2 b - - 0 2 illegal: No proof kernel
3N1Q2/2p2r2/K2P1Qb1/1npB2R1/pP2P3/4p3/Q1p1rkP1/q4Bqn b - - 0 1 legal: proof: h4 g5 hxg5 b5 c4 a6 a4 d6 axb5 Bg7 c5 Bc3 Na3 dxc5 Nb1 Ba5 Ra4 Bb6 Ra1 Ba7 b6 Qd5 Nc3 Qd4 Nb1 Qd8 bxa7 f5 d4 f4 b4 Qd7 e4 Qd8 Be3 fxe3 d5 e6 Nc3 e5 Ra2 Kf7 Rd2 Ke8 Rd4 exd4 Bc4 dxc3 Bd3 Qf6 Bf1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f3 Kf4 g6 Kg3 d6 h5 g7 a5 Kb5 h4 f4 h3 f5 h2 f6 Nh6 g8B Kf2 f7 Ng4 f8Q+ Qf6 Be2 Rh7 Qa1 Bf5 Bf3 Rf7 Be2 Nc6 Bf1 Nd4+ Ka6 Nb5 Nf3 Bg6 Ne5 a4 Qg7 c2 Qa2 Raf8 Nc6 Qe5 a8Q Qa1 Bd3 Qg1 Nd8 Qa1 Rd1 h1Q Bf1 Qg1 Qd4 Kg3 Qg7 Nf2 Rd5 Nh1 Rg5+ Kf2 Qgb2 Rf4 Qf6 Rf7 Nc6 Rf5 Qf8 Rf3 Nd8 Rf5 Q6g7 Rd5 Qgb2 Rd2 Qe5 Re2 Qeg7 Rf3 Bd5 Rf7 Qf6+
1N5K/kpbN4/5rQ1/q1n1nnb1/2PP1Q2/3q1n1R/1P4Pb/q2B1nN1 b - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 f5 a5 d3 c4 Ra3 e6 Rb3 exf5 Rb6 f4 Rb4 axb4 Nf3 d5 Kf2 d4 Ng1 c3 Ke1 Ra6 Na3 Rc6 Nb1 Rc4 dxc4 d3 Rh3 Bf5 Be3 d2+ Kf2 Bg6 Rh1 Bd3 cxd3 c2 Bd4 Bg7 Bf6 Bf8 Bc3 bxc3 Kf3 Kd7 Ke4 Kc6 Ke5 Kb6 e4 c1B d4 f5 a5+ Ka7 a6 h5 Qe1 d1Q Rh2 f3 Rh3 f4 Rg3 h3 Rg7 c2 Rd7 f2 Bd3 f1N Rd5 h4 Nf3 h2 Ke6 h1Q Kf7 h3 e5 h2 e6 Nc6 e7 Nh6+ Kf6 Ne5 Nc3 Qa5 e8Q Nd2 Qd8 Bd6 Kg7 Rf8 Qf6 Bc7 Qg6 Rf6 Qe3 Nf5+ Kh8 Qhf1 Ng1 h1N Rd6 f3 Na4 f2 Nc5 Nhg3 Qf4 Ndf3 Be2 Qd3 Nd7 Ne4 Bd1 Nc5 Nb8 Bd2 Rd7 c1B Rh7 Qe1 Rh3 f1N Qfg4 Bg5 Qf4 Kb6 a7 Bd2 a8N+ Ka7 Qe4 Bdf4 Nb6 Bh2 N6d7 Qa1 Qh4 Qea5 Qf4
Kbr2q2/B1Nbb1p1/Q1p1BnQ1/r2n2k1/P7/3P2P1/1pP1B3/qR5n b - - 0 1 legal: proof: e4 e5 b4 h5 a4 a5 g3 axb4 Ra2 h4 Rb2 h3 f4 d5 fxe5 dxe4 Rb3 f5 Na3 bxa3 Rf3 Ra7 Rf2 Qd4 Rg2 hxg2 h4 Qd8 h5 Ra8 h6 Qd5 h7 Nf6 Bb5+ Qc6 Bf1 Rg8 h8Q Qb5 Qh7 Rh8 Qg8 Kd8 Bxb5 Ke7 Bf1 Ke8 Ke2 Ke7 Ke3 b5 Kd4 f4 Kc5 e3 e6 a2 Be2 a1Q Bc4 e2 Nf3 g1B+ Nd4 e1N Ba3 f3 Rh4 b4 Rh7 c6 Kb6 f2 Bb2 f1Q Be2 b3 Rh1 Bd7 Kb7 Nd3 Nb5 Nd5 Bd4 b2 Nc7 Nf2 d3 Ra5 Ba7 Kf6 e7 Kg5 e8B Be7 Qf8 Rg8 Bf7 Rh8 Qc8 Rf8 Rh7 Nh1 Ka8 Qf4 Qa6 Rc8 Bg8 Qf8 Be6 Be3 Rh2 Bf4 Qf1 Be5 Qf7 Be8 Rf2 Bf4 Rf1 Bfd6 Rb1 Nd7+ Kb7 N7f6 Na8 Bb8 Nc7 Bd7 Ka8 Nf2 Qe8 Nh1 Qg6+
1Bb4b/3PN1bq/p2nQ3/Q1P3KP/pN3P1r/4kq2/4r1pR/q2r1Q2 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 h5 c4 c5 g4 hxg4 a4 bxa4 b5 a6 b6 Nc6 Ra2 Na7 bxa7 d6 Rb2 d5 Rb4 cxb4 c5 Nh6 Be2 Ng8 Bc4 dxc4 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Ke4 e5 d4 g3 f4 g4 h4 g2 d5 b3 d6 g3 d7 b2 Rh3 c3 Rh2 c2 Bd2 c1R Qb3 Bg7 Qa2 Rd1 Bc3 Nh6 Ne2 g1B Qd5 g2 Na3 b1Q+ Nc2 Bd4 Ng3 Nf7 Ba5 Qa1 Nb4 Qg8 Bc7 Qh7 Bb8 Nd6+ Kf3 e4+ Kg4 e3 h5 e2 Qc4 e1Q Qf1 Rg8 Kh4 Qe3 Kg4 Ke7 f6+ Ke6 f7 Qf3+ Kg5 Bc3 f8Q Bb2 Nc2 Kd5 Nf5 Ke4 Ne7 Bbd4 Nb4 Ke3 Qf6 Bh8+ Qg6 Bdg7 Bc7 Rb8 a8Q Rb6 Bb8 Rb7 Nbc6 Rb2 Nb4 Re2 Qc6 Rf8 Qf5 Rf6 Qc7 Rg6+ Kh4 Rg3 Qa5 Rh3+ Kg5 Rh4 Qe6+
1nQ1nNn1/2r1k3/4q2b/N2P4/P1P4P/1NrRpn2/Kn1pp1BQ/4q3 b - - 0 1 legal: proof: b4 f5 a4 h5 g4 c5 Bb2 a5 Na3 axb4 gxh5 c4 e4 fxe4 d3 c3 Qe2 Kf7 Rd1 Rh6 Rd2 Rh8 Bg2 cxd2+ Kf1 Ra6 Bh3 Ra5 Kg2 Ra7 Kg3 Ke8 Bf1 Ra6 Kg2 Ra8 c4 d5 f3 e5 Kf2 d4 Bh3 Bf5 Bf1 Kd7 Bc3 dxc3 Qe3 Bh7 Ke2 Bg6 Qc5 e3 Kd1 e4 Kc2 e2 Qg5 e3 Qe5 Be4 fxe4 Qa5 Qg5 Qc7 Qe5 Qd8 Kb3 b5 h4 g5 h6 g4 h7 c2 d4 c1N+ Kb2 b3 d5 g3 Nc2 g2 Nh3 g1N Qg7+ Qe7 e5 b4 Na3 Nf3 Ng5 Ra7 Nc2 Rc7 Bg2 Nd3+ Ka1 b2+ Ka2 b1N e6+ Kd6 Na1 Nb2 Nb3 Na3 Rc1 Nb5 Rc3 Qd7 e7 Qe6 Qg6 Bh6 e8N+ Ke7 Rd3 Nd6 Qf5 Ra7 Qf4 Rc7 Ng7 Ne8 Ne4 Qf6 Na5 Qe6 Nc5 b3+ Ka3 Nd1 Qe5 b2 Ncb3 b1Q Qh2 Qc1+ Ka2 Nb2 Nh5 Qe1 Nf6 Rb7 Nd7 Rb4 Na1 Rb3 Nf8 Rc3 N1b3 Ngf6 Na1 Rg8 h8Q Rg7 N1b3 Ng8 Ng6+ Kd8 Nf8 Rc7 Qd4 Ke7 Qg4 Qf6 Qc8 Qa6 Nc5 Qe6 Ncb3
bq6/p5NQ/brBN1Np1/bP2p3/bP3P1r/Qb2R1K1/P1k4p/3q4 b - - 0 1 legal: proof: e4 g5 d4 d5 h4 gxh4 Qe2 c5 Qd3 Nd7 Qd1 Ndf6 Rh3 cxd4 Rh1 d3 Bf4 d4 Bc1 Nd5 exd5 Bg7 Qf3 Bh6 Qd1 Bf8 b4 Qb6 g4 Nf6 g5 Bh3 g6 Qd8 g7 Bd7 Rh3 Bg4 Rg3 Bc8 Rg6 fxg6 Ba3 Kf7 Bh3 Bf5 Qf3 Bd7 Ne2 Qc8 Nbc3 Qe8 Kd2 Bb5 Rh1 Qc6 Ke1 Qd7 Bc1 Ke8 Bf1 Ng8 Nb1 Qd8 Ng1 Bd7 Qd1 Bc8 Bd2 b6 Bc3 Nf6 Bb2 Ne4 Ba3 Nd2 b5 Nb3 Bc5 bxc5 cxb3 c4 b4 c3 g8N Kd7 f4 Kd6 Kf2 h5 Qa4 e5 Rh2 c2 Kf3 c1Q Bg2 h3 Bh1 d2 Ne7 d1B+ Re2 d3 Kg3 h2 Re1 d2 Bg2 h1B Rf1 h4+ Kf2 h3 Ng8 h2 Na3 Bb3 Ne2 d1B Nf6 Be7 Kg3 Ba6 Rf3 Rh4 Re3 Qb8 Nd4 Bd8 Ne6 Ba5 Ng7 Bdc2 Be4 Qd1 Bg2 Qb7 Be4 Rb8 Bf3 Qa8 Bg2 Rb6 Nc4+ Kc7 Bf3 Qb8 Qa3 Ba4 Nd6 Bcb3 Ng8 Kd7 Nf6+ Ke7 Nde8 Bg2 d6+ Kf7 d7 Ke7 Be2 Ba8 Bf3 Kf7 Bc6 Ke7 Ngh5 Ke6 d8Q Kf5 Qc7 Bd5 Rc3 Bc4 Qh7 Bcb3 Nd5 Ke4 Re3+ Kd4 Nhg7 Kc4 Nd6+ Kd4 Re4+ Kd3 Re3+ Kc2 Nf6
7n/P1Pqpp2/3Np3/1krPb1pQ/7Q/1KB2n1b/1p2Pnp1/2BR3B b - - 0 1 legal: proof: g4 h5 Na3 hxg4 Nb5 a5 Nd4 Nh6 b4 Ng8 Ne6 axb4 a4 Ra6 Ra2 Ra8 Ra3 bxa3 f4 dxe6 f5 g5 Bb2 b5 Be5 Rh6 Bxc7 Rg6 fxg6 Ra6 Qb1 Rd6 Qa1 Rd3 Qc1 Rh3 Qd1 Rh8 d4 Kd7 Kd2 Kc6 Kc3 a2 h4 a1N a5 g3 g7 Nd7 a6 Ngf6 g8Q Rh6 a7 Rg6 h5 Rh6 Qg6 Bg7 Qe1 Nb3 Nf3 Ng4 Bg2 Nd2 Nh4+ Nf3 Nf5 b4+ Kb3 Be5 c4 Nf2 c5 Bb7 Nd6 Rh8 h6 Nf8 h7 Qd7 Qh5 Ng6 Rg1 Rd8 h8B Rc8 Bh1 g2 Bf6 Nh8 Rf1 Ba6 Bg7 Bd3 Bb6 Ng4 Qeh4 Nf2 Rd1 Bf5 Ba5 Bh3 Bf6 Bf4 Be5 Bg3 Bf4 Bh2 Bc1 Be5 Nb7 Rc7 d5+ Kb5 c6 Rc8 Bb6 Rc7 Bd4 Rc8 Bc3 Rc7 Ka2 b3+ Ka3 b2 Kb3 Rc8 c7 Rb8 Nd8 Rb6 Nb7 Rc6 Rd2 Rc4 Rd1 Rc5 Nd6+
4BnqR/n3P1Q1/1Qb1Bp1K/r4N2/1PP2Bp1/P1k3b1/2br4/2rrb1r1 b - - 0 1 legal: proof: c4 a5 g4 h5 d4 hxg4 f4 b5 b3 e5 fxe5 c5 Nf3 cxd4 Ng1 b4 Nc3 bxc3 b4 a4 Rb1 a3 Rb2 axb2 Kf2 Ke7 Kg3 Ke6 Kf4 b1B h4 d5 e4 g5+ Kg3 d3 a3 d2 h5 c2 h6 f6 h7 d4 Qf3 d1R Rh5 d3 Rh4 d2 Qd3 Nd7 Bb2 c1R Rh6 Bb7 Qc2 Ne7 Ba1 Bc6 Qb2 Nc8 Qd4 Bc2 Qb6 Na7 Nf3 Bd6 Nh4 Qg8 Nf5 Nf8 Bh3 Re1 Bc3 d1R Bd2 Bc7 Bf4 Rg1+ Kf2 g3+ Kf3 g2 Kg4 Rd2 Kh5 Rgd1 Bg4 g1B Bh3 Bf2 Bg4 Be1 Bh3 Kd7 e6+ Kc8 e7 Kd7 e8B+ Ke6 Bh2 Bcg3 e5 Rad8 Bg4 R8d5 Bh3 Ra5 Bg4 Bgf2 Bf4 Bg3 Bh3 Qg7 Bg4 Rg8 h8Q Qh7 Be2 Rg6 Qg7 Qg8 Rh8 Rh6+ Kg4 Rh1 Bf1 Rg1 Kh5 Be4 Bd3 g4 Bc2 Bd3 Kh6 Be4 Ba4 Bc2 Bb5 Bd3 Ba6 Bc2 Bc8+ Rd7 Ba6 Rd8 Ne7 R8d4 Bc8+ Rd7 Ng6 Kf5 e6 Ke4 e7 Kd3 Nh4 Kc3 Nf5 R7d2 Be6
5N2/1n3Q2/b3r2P/Bnb2r1b/P1K1P3/QP1p1r1p/nbk3Q1/R1qN3n b - - 0 1 illegal: No proof kernel
b2BqnB1/1P3p1B/1KpP1Rrb/2n3kQ/1n2n3/nnP2b2/1P6/5NnQ b - - 0 1 legal: proof: f4 g5 e4 gxf4 a4 d5 g4 dxe4 g5 h5 Ra3 Nh6 Rg3 Ng8 Rg4 hxg4 Na3 a6 Nc4 a5 Bh3 Ra6 Bg2 Rb6 Bh3 Rb5 Bf1 b6 axb5 a4 Na5 bxa5 Kf2 e5 d4 Ke7 h4 c6 b6 g3+ Ke2 a3 h5 g2 c3 e3 Kd3 a2 Kc4 a1N Kc5 f3 h6 e4 d5 a4 g6 Kf6+ d6 a3 h7 a2 g7 e2 Rh2 e1N Nh3 g1N Qd5 e3 Qd2 e2 Qe3 f2 Bg2 f1B Qg3 Nec2 Be4 e1N Qg4 Be2 Rg2 Bf3 Rh2 Nd3+ Kc4 Nc5 Rf2 Nb4 Qg2 Nac2 Nf4 a1N Ne2 Bb7 Qh1 Nab3 Ng3 Nbd7 Nf1 Ba8 b7 Qc8 Be3 Qe8 Bd4+ Kg5 Bf6+ Kg4 Be7 Ngf6 Bd8 Rg8 h8Q Kf4 Bh7 Nfe4 Rh2 Kg4 Rh6 Kf4 Rf6+ Kg4 Bf5+ Kg5 Q8h3 Rh8 g8B Rh6 Bfh7 Rg6 Q1h2 Bh6 Qe2 Nf8 Qh1 Nd5 Qd1 Ne7 Qe2 Na3+ Kb4 Nbd2 Ka5 Ndb3+ Kb6 Nd5+ Ka7 Nb4 Kb6 Ng3 Qeh2 Nge4 Qh5+
2q3Nq/r4Q2/1rPBn3/qp2bq1R/1k1qNpP1/4PPr1/2Q2K2/N2b3r b - - 0 1 legal: proof: b4 e5 h4 c5 a4 a5 d4 axb4 e3 cxd4 h5 g6 Bb5 e4 Bd3 exd3 h6 Nc6 Rh5 Nce7 Qf3 Nf5 Qd1 Ng7 hxg7 gxh5 Qf3 Nf6 Kd1 Ra5 Bb2 Qc7 Nc3 Qh2 Nh3 Ne4 Rc1 Ra6 Nb1 Nf6 Kd2 Rd6 Rh1 Ng8 Bc1 Ra6 Qd1 Ra8 Ng1 Qc7 Ke1 Qd8 c4 Ke7 a5 Kd6 g3 Kc5 a6 d5 a7 f5 Qc2 b5 Qc3 d2+ Kf1 d1R+ Ke2 d3+ Kf3 d4 Qc2 h4 Qb3 h5 Nd2 f4 Qa4 b3 Qa2 b2 Ne2 b1Q Kg2 h3+ Kf3 h2 Re1 h1R Qa6 h4 Nb3+ Kb4 c5 h3 c6 d2 Rf1 d3 Qa2 h2 Re1 Bg4+ Kg2 Qc8 Qa1 Nf6 g8N Nh5 Nc5 Ng7 Qa2 Ne6 Rg1 Bd6 Qd5 Be5 Nc3 Qa2 Qd7 Qa5 Bb2 Re1 Qc7 d1Q Qf7 d2 Nb3 Qc2 Na1 d1Q Ne4 Qd4 Rf1 Bd1 g4 Rb8 a8Q Rh3 Bc1 Qcc5 f3 Rg3+ Kf2 Rb6 Qaa7 Q5f8 Qh7 Qf5 Qaf7 Rhg1 Qhg6 h1Q Bb2 Qh8 Ba3+ Ka4 Bf8 Rh1 Bd6 Rh7 Rh1 Rg7 Qe8 Ra7 Rh5 Reg1 Qef7 Rh1 Nc5+ Kb4 Qgh7 Qff6 Qc2 Qf5 Ne4+
R1N2n2/1p1kQ3/Pbbnb2P/7p/rPN4n/n3rbKP/r2Q4/QBr5 b - - 0 2 legal: proof: b4 c5 d4 cxd4 f4 e5 f5 a5 a3 a4 g3 Qh4 Bf4 exf4 Ra2 Qh6 g4 Qh5 Rb2 h6 Rb3 axb3 a4 b2 g5 Qg6 Bh3 h5 Bf1 Qh6 gxh6 Na6 Nc3 b1R f6 Ra1 Nb1 Nb8 Nc3 Nxf6 Nb1 Ng8 Kf2 d5 c4 f5 e4 g5 a5 d3 c5 g4 e5 d2 h3 d4 c6 d3 e6 f3 e7 g3+ Ke3 f4+ Ke4 f2 Kf3 g2 c7 Ra4 Qe2 d1B Nd2 Nf6 Rh2 Nbd7 Rh1 Ne4 Nb1 d2 Na3 Nd6 Nb1 Bg7 Na3 Bd4 Nb5 Nf8 Na7 Kd7 Rh2 Bb6 Nb5 Bc2 Qc4 d1B+ Be2 f1N Qd3 Ne3 Na7 Nc4 Qd2 Na3 Rh1 Bf5 Rh2 Be6 Rh1 Bdb3 Bd3 Bbd5+ Be4 Bc6 Rh2 Bb5 Bb1 Rg8 Rh1 Rg5 Rh2 Re5 Rh1 Re3+ Kf2 f3 Kg3 f2+ Nf3 f1R a6 Bg4 Rg1 Rc1 Re1 g1N Rf1 Re2 Ne5+ Ke8 Rf6 Bce6 Nc4 Bf3 Nc8 Kd7 Rg6 Bbc6 Rg8 Bh1 Rh8 Nf3 Rg8 Nh4 Rh8 Ke8 Rg8 Bhf3 Rh8 Kf7 e8Q+ Kf6 Qd8+ Kf7 Qf6+ Ke8 Qa1 Rh2 Ne7 Rd8 c8Q Rf2 Qa8 Kd7 Nc8 Re8 Qa7 Bc7 Q7d4 Bb6 Q2e3 Ra2 Qdd2 Bg8 Qc5 Re3 Qg5 Be6 Rg8 Kc7 Qe7+ Nd7 Rd8 Ndb5 Na7 Nd6 Qe8 Nf8 Ra8 Bce4 Nc8 Bc6 Qf7+ Kd8 Qff6+ Kd7 Qe7#
K2R4/1r1nnQ2/NQ2P1nb/pP1P2Qq/P1r1qBp1/1p1q2r1/8/1k1b2R1 b - - 0 1 legal: proof: f4 d5 g4 e5 c4 exf4 cxd5 a5 b4 h5 Bg2 hxg4 Be4 b6 Na3 b5 Nc4 bxc4 Bc2 Bb7 Bb3 cxb3 Kf2 Ba6 Ke1 Bc8 Kf2 Ke7 d4 Kf6 h4 Kf5 a4 Ke4 h5 g5 e3 f5 d6 c5 d5 c4 d7 f3 h6 f4 b5 c3 h7 g3+ Ke1 c2 Kd2 f2 Kc3 f1Q Rh2 g2 Bd2 c1R+ Qc2+ Qd3+ Kb2 f3 Qc5 f2 Nh3 g1N Qb6 f1Q Nf4 Qe8 d8Q Nd7 Ne6 Qf3 Nc7 Rc4 Na6 Ne2 Rg1 Qfh5 Bc1 g4 Qg5 Ra7 Rf2 Bh6 Rf8 Qe7 Rd8 Rb7 Bd2 Nf4 Bc1 Kf3 e4 Ke2 e5 Ng6 Bf4 Qe8 Ka3 N8e7 Kb2 Rf8 h8Q Rf6 Qh7 Rf8 Bh2 Rf3 Bf4 Rg3 Qg8 Ndf8 Qh7 Bf5 Qf7 Nd7 e6 Qe4 Ka1 Kd3 Kb1 Kc3+ Kc1 Qh8 Kd1 Kb2 Kd2 Qb1 Ke2 Qh7 Kd2 Be4 Ke2 Bf3+ Ke3 Rcc7 Kd4 Bd1 Re1 Qf5 Rg1 Kb1 Qc6 Ndf8 Kc5 Qd3 Kd6 Nd7 Qb6 Rc3 Qc6 Rb8 Kc7 Rc4 Qc5 Ra8 Kb7 Rb8+ Ka7 Rb7+ Ka8 Qh1 Qgf6 Qhe4 Qb6 Qh8 Qf5 Qhe5 Q5f6 Qh5 Qg5
1nb3R1/2BPq1P1/Q1Q1Pr2/2Q1nRbN/pq2rp2/6p1/2KP1k1r/6bn b - - 0 1 legal: proof: g4 g5 a4 h5 c4 e5 f4 d5 cxd5 b5 Qc2 bxa4 Qb3 gxf4 g5 Bh3 Nc3 Bc8 Ne4 Ba3 Bg2 Bf8 Nf2 e4 Ng4 hxg4 Bf3 exf3 Qc2 Rh7 Qd1 Rh8 b4 Ke7 e4 Kd6 h4 Ke5 h5 c5 d6 a5 h6 f5 g6 f2+ Ke2 f1N Kd3 a3 b5 a2 d7 c4+ Kc3 f3 h7 Kf4 e5 Kg3 e6 f2 g7 Nh6 b6 Nf7 b7 Qe7 Rb1 a1B+ Rb2 Ne5 Kc2 c3 Kb3 c2 Qe2 f4 Kc3 a4 Qa6 Kg2 Rh4 Ng3 Ne2 f1Q Rh5 Kf2 Rf5 Nh1 Ng3 Qb5 Nh5 g3 Qc6 Qh4 Qa6 Be7 Qc6 Rf8 h8Q Rf6 Qd8 Qb6 Qdc7 Ra5 Q7d6 Rd5 Qdc5+ Rd4 Q5b5 Re4 Qa6 Ng4 Kd3 Qb4 Rb3 Bc3 Ba3 c1R Rb1 Rf1 Kc2 Bd4 Bb2 Bb6 Be5 Rfe1 Rc1 R1e2 Bc7 Ne5 Rb1 Kf3 Rb2 Bg1 Qc5 Rh2 Qac6 Na6 b8Q Qg5 Qbb5 Nb8 Qba6 Qh4 Qca5 Kf2 Rb3 Rg6 Rc3 Bg5 Rc5 Rh6 Rf8 Rf6 Rg8 Qg4 Q5b6 Qf3 Qba5 Qfa3 Rd5 Qe7 Qac3 Qab4 Q3c4 Nd3 Rf5 Ne5 Q4c5+
2n2B1k/5P2/P1q3B1/rn3pP1/Q4b1K/1ppqr1Qn/Q1n1qNP1/2R2b2 b - - 0 1 legal: proof: c4 g5 f4 a5 h4 d5 hxg5 dxc4 b4 axb4 a3 e6 f5 Ra5 f6 Ra8 e4 Qd4 a4 Bg7 e5 Kd7 Ra3 Qd6 Rf3 Bf8 Rf5 Qe7 Na3 Qe8 Nb5 Qd8 Nd4 exf5 e6+ Kd6 e7 Kd7 Ne6 fxe6 Kf2 Ke8 Kg3 Kf7 d4 c5 a5 b5 d5 h5 d6 e5 d7 c3 Qg4 c4 Qf3 b3 Qe2 b2 Qe1 b1N Qf2 e4 Qc2 e3 Ba3 h4+ Kh3 e2 Bc5 e1Q Ba7 b4 Bc5 b3 Qe4 c2 Bb4 c1Q Qf4 Nc6 Nf3 Ba6 Qd6 Na7 Bd3 Qe2 Ng1 Na3 Bc2 N7b5 Bd3 Nc2 Kh2 h3 Kg3 h2 Qe5 Rh4 Bc5 Re4 Nh3 Re3+ Kh4 Ra7 Rf1 h1N Qg3 Nf2 Bd6 Kg6 e8Q+ Kh7 f7 Kh8 Rh1 Bg7 Bf8 Be5 Be4 Bd6 Bf3 Bf4 Bh5 Ne7 Bg6 Nc8 Qe4 c3 Rg1 Qa1 Rc1 Qa4 Qc6 Qe4 Qa8 Qf6 d8Q Q4d3 Qd6 Qe6 Qa3 Qc6 Qa2 Rae7 Ng1 R7e5 Qa7 Nh3 Qd4 Nc7 Qda4 Bc4 a6 Ra5 Nf3 Nb5 Ne5 Nca7 Ng4 Nc8 Nf2 Qe1 Kh5 Qdd6 Be7 Bf1 Kh4 Qd3 Ba3 Qee2 Bf8
b7/1p1B1qn1/2PQPrn1/R2p2b1/1kn5/q1pnP1Q1/2KQP1N1/q2r2N1 b - - 0 1 illegal: Other
2Nrq3/1b5Q/q2p4/2rpQ1p1/1R4P1/1nP1Pk2/P1nRrB2/qr1n1R1K b - - 0 1 legal: proof: h4 a5 d4 f5 b4 axb4 h5 e5 h6 exd4 e3 c6 Bd2 g6 Be2 d3 Nc3 f4 Bc1 f3 Kd2 fxe2 Nd5 Bg7 hxg7 cxd5 Ke1 Ke7 f4 Kf6 Kf2 Kf5 g4+ Ke4 Kg2 e1R c3 b5 f5 h5 f6 g5 f7 d6 f8R h4 Bd2 b3 Nf3 b2 Rh3 b1R Kh2 b4 Rg3 h3 Nh4 b3 Qe2 b2 Ng2 Qe8 Rf2 Nf6 g8Q Nc6 Qd1 Re2 Ne1 Nd4 Qb3 Nd7 Qd1 Nc2 Ng2 Nc5 Rgf3 Ra5 Kh1 h2 Be1 d2 Nf4 Nb3 Ng6 Bb7 Qh7 Rc5 Rg2 Rf8 Bf2 Rh8 Qe1 d1N Rf5 Rf8 Ne7 Rh8 Re5+ Kf3 Nc8 Rc1 Qh4 Qg6 Qh6 Rd8 Bh4 Qg8 Rg1 Qe8 Rf5+ Ke4 Rf6 Nf2+ Kg2 b1Q Rh1 Qb2 Rf4+ Ke5 Rb4 Qa3 Qh7 Qa6 Qg1 Rf1 Rd1 Rfe1 Rd2 Ra1 Qf1 Rc1 Rg1 h1Q+ Kg3 Rce1 Qh3 Ra1 Rb1 Qc1 Kh2 Qb2 Re1 Nd1+ Bf2 Rb1 Kh1 Qa1 Rg1 Rc4 Qh8+ Ke4 Q3h7+ Kf3 Qe5 Rc5 Rf1
2Nb4/p3Q2b/prbq1P2/2Rb2BK/P3prr1/1p3BB1/1QP2rP1/1k1n4 b - - 0 1 illegal: No proof kernel
K1k2q2/bpqrQ3/1P2qR2/4r1N1/2Qbb1PB/3pr1P1/bn1P3Q/1n2r2N b - - 0 1 illegal: Other
3B2rr/1p5b/PQ1bp1kB/K3P2P/bP3b2/NBqrq1r1/R3Q2n/3n1q2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 a4 g6 fxg6 Na3 g5 Nb1 g4 Nc3 h5 Ne4 Kf7 Ng3 Ke8 Rb1 h4 Rb3 axb3 a4 hxg3 Kd2 Kf7 e4 d5 f4 g5 h4 b2 c4 b1Q a5 g2 e5 d3 Kc3 g3 f5 d4+ Kd2 g4 a6 Nh6 f6 Nd7 c5 Nb6 c6 Bf5 c7 e6 c8Q Nd5 Ne2 g1Q Qb3 g2 Qd1 g3 Qdc2 Bh7 Ba3 Ng4 Q2c5 Nde3 Qb5 Kg6 f7 Qc7 Rh3 Bd6 f8B Nh2 Nc3 Qa1 Be2 Qaf1 Bh6 Qc6 Qc7 Rag8 Qca5 Qgf2 Qd8 g1B Nb1 g2 Qdb6 Qf4 Qc4 Bf2 Bg5 g1R Bd1 Bg3 Bd8 Qc8 Kc1 d2+ Kb2 d3 Kb3 Qg5 Bc2 d1B Ka4 Qh6 Ka5 Rg2 Ba4 d2 Qa2 Bb3 Bc1 d1R Qe2 Qhf4 Bc6 Ba4 Bd5 Rd4 Bd2 Nd1 Be3 Q4f3 Bh6 Bf4 Bc4 Qe4 Ra3 Rd3 Bb3 Qc3 Ra2 Rgg3 Na3 Qe3 h5+
1rQ2bR1/3p1pR1/BRnq1Pq1/4k3/P1Pb4/2bPr2b/n3nr2/1rQK2N1 b - - 0 1 legal: proof: g4 h5 b4 hxg4 b5 c5 b6 c4 Bh3 axb6 Bg2 b5 Bf1 b4 d3 e5 Nd2 e4 Bb2 e3 Bh3 exd2+ Kf1 c3 Kg2 cxb2 Kg3 Ne7 Bf1 Ng8 Kg2 Ra3 Kg3 Ra5 Kg2 Ra8 f4 Ke7 Kf2 Ke6 e4 b1Q Ke2 b5 c4 g5 h4 g3 a4 g2 e5 g4 h5 g3 h6 b3 h7 b4 Rh2 b2 Qc2 d1R Qc1 b3 Nh3 g1B Rg2 Qc7 Rh2 g2 Qd2 Bb7 Ra3 Nh6 Qc2 Qd6 Qd2 Nf5 Ra1 Nc6 Qc1 Re1+ Kd2 Re3 Ra3 Nfd4 Nf2 Rb8 Nh3 Ne2 Kd1 Bf2 Ng1 Be1 Rh3 Bc3 Rg3 Qa1 Rg8 b1N Rg7 b2 Rb3 Rg8 h8R Qa2 Nf3 g1B Bg2 Kf5 e6 Qaa3 e7 Qg6 e8Q Qad6 Rh1 Rh8 Rb6 Rh2 Qc8 Ba8 Bf1 Rf2 Rh8 Ke6 f5+ Kf6 Nh4 Ke5 f6 Na7 Bh3 Rh2 Bg2 Bb4 Rhh7 Re4 Bh3 Bd4 Ra6 Rf2 Bg2 Re3 Bh1 Bg2 Rh8 Bh3 Bb7 Nc6 Rb6 Bd2 Rhg8 Nbc3+ Kc2 b1R Ba6 Na2 Kd1 B2c3 Nf3+ Kf4 Ng1 Kf5 Bb5 Ke5 Ba6
7N/1kR1K2n/3p3n/3Q3q/P1r3Pp/3PnbQ1/pr3nQP/RqqqB1b1 b - - 0 1 illegal: No proof kernel
2B1r3/1pp1Rpbn/2PbQ2N/3n1pkr/2KR4/3Q1b1b/1PQ2PPb/3qr3 b - - 1 3 illegal: No proof kernel
b3R1Br/2r1npK1/3p1Npn/n1B1QP2/4rbP1/q5kp/1PQ1Pbr1/4Q3 b - - 0 1 illegal: No proof kernel
3R4/P1pp1BK1/1nP1k2r/B3prp1/3pP3/1b1nb3/q1QrP2N/b1Qb3B b - - 0 1 illegal: Other
1br2B1B/3kbb2/b4P1p/4N3/1B2rn2/1P1np3/p1P2QP1/KN4Nr b - - 0 1 legal: proof: d4 b5 e4 f5 exf5 d5 a4 c5 axb5 cxd4 Bg5 d3 Bf6 d4 Bg5 d2+ Ke2 Kf7 Qe1 d1R Bd2 Rc1 Qd1 Ke8 Ke1 Kd7 Ra4 Ke8 Rc4 Bd7 Rc8 Bxc8 h4 g6 f4 d3 f6 Qd5 f5 Kd7 f7 Qc5 f6 Qg5 Na3 Rb1 hxg5 Ra1 Rh4 Na6 Rf4 Nb8 Rf5 gxf5 Be2 dxe2 Kf2 e1B+ Kf1 Bf2 Nb1 Be3 Ke1 Kc7 Bb4 Bc1 Bd2 Kd7 g6 a5 b6 e5 b3 e4 g7 f4 b7 h6 Nc3 f3 Nb1 f2+ Ke2 f1B+ Ke1 a4 Nc3 a3 Qe2 a2 Kd1 Ra4 Nb1 Nc6 b8B Nge7 g8N Nb4 Bc3 Ng6 Ne7 Nf4 Bd6 Nbd3 Qf2 Ba6 Nc6 Be7 Bcb4 Rc8 f8B e3 Bdc5 Bb2 Bg7 Be5 Bh8 Bb8 Bd6 Bc4 Bdc5 Bf7 Bd6 Ne1 Kc1 B1c4 Kb2 Ba6 Bbc5 Re4 Bb4 Bd8 Bf8 Be7 Nd2 Rd1 Nb1 Ned3+ Ka1 Re1 Nh3 Rh1 Ne5+ Kd8 Ng1 Kc7 Nc6 Kd7 Ne5+
1r3bb1/2PqqPP1/1r4rB/1nq2NP1/BnN1pq2/2r5/R1k1K3/2N4B b - - 0 1 illegal: No possible last move
N4n2/1KP3Pq/r1pRR1r1/1nN1R2q/1b1NP2p/b3P3/3q2k1/B3n2n b - - 0 1 legal: proof: c4 c5 h4 b5 a4 g5 Qc2 gxh4 axb5 Nc6 b4 cxb4 c5 Nb8 c6 Bh6 c7 Bf8 d4 e6 d5 Bc5 d6 Bd4 Qc6 dxc6 f3 Bg7 e3 Bf8 Bc4 Bd7 Bd5 exd5 Ba3 Bf5 Bc1 Be4 fxe4 Bg7 Rh2 Bh6 Rh1 Bf8 Kf2 h5 Kf3 a5 g4 f5 g5 Kf7 d7 Kg6 b6 d4 b7 a4 Rh2 b3 Rg2 a3 Kf4 d3 Ke5 d2 Ra2 d1Q Rab2 a2 Rge2 a1B Rc2 h3 Rc5 h2 Nh3 h1N Nc3 f4 Nb5 f3 Ng1 h4 Nd4 Kh5 g6 Kg4 g7 Kg3 Bd2 f2 Be1 Rh6 Rbc2 b2 Ra5 b1N Rac5 Nf6 Bc3 f1Q Rf2 Na6 b8N Qh5+ Ke6 Rg6 Ngf3 Na3 Nd2 Nb4 Na6 Nbc2 Nc4 Ne1 Nb6 Nb5 Re5 Nh7+ Rf6 Bb2 Nc5 Ra6 Na8 Ba3 Bb2 Qd3 Ba1 Qb8 d8R Kg2 Kd7 Qd2 Rfe6 Bd6 Nd3 Bdb4 Nc5 Nf8+ Ke8 Qb6 Rdd6 Qh7 Kd8 Qa5 Kc8 Qa4 Nd7 Qad1 Kb7 Qdh5 Nc5
7B/K1pB2rP/1pbPb3/5pbN/1q2BbRP/1n2n1N1/1k5P/2Nq2n1 b - - 0 1 illegal: Other
1RbbRq2/2r2bn1/1K1P2pk/P5q1/1N2B1rP/1N1pN1P1/4r3/nRq2q2 b - - 0 1 legal: proof: e4 h5 b4 f5 exf5 a5 g3 axb4 Qg4 h4 Qf3 h3 c4 d6 Qg2 hxg2 c5 Ra5 Bb2 Ra4 Bc1 Ra8 d4 dxc5 d5 Rh7 Kd2 Rh6 Ke1 Rh8 Be3 Qd6 Bd4 cxd4 Na3 Qd7 Nb1 Qd8 Kd2 Kf7 Kd3 b5 h4 e5 a4 c5 f4 g6 d6 Kg7 f6+ Kh6 f7 e4+ Kc2 d3+ Kb3 c4+ Ka2 b3+ Ka3 e3 Kb4 e2 Kc5 e1R f5 b2 f6 b4 Rh3 c3 Be2 c2 Bg4 c1Q+ Kb5 b3 Nf3 g1Q Ng5 Na6 Rh2 Nc5 Rc2 Rh7 Nf3 Ne7 Nh2 Nf5 Re2 Qg5 Bf3 Qf1 Nd2 b1Q Be4 b2 Nb3 Be7 f8N Qbc1 f7 b1B Nd7 Ba2 f8R Ng7 Rb1 Ra7 Reb2 Re2 Nb8 Rc7 Rg8 Qdf8 a5 Bd8 Nc6 Rf7 Nb4 Rf4 Kc6 Rg4 Rh8 Nge6 Rg8 Rc7+ Kb5 Ng7 Kb6 Q8f2 Re8 Qf8 Na1 Bf7 Nb3 Qff4 Nf1 Qf3 Nd4 Nb3 Ne3 Na1 Nb3 Qff1 Rc2 Qh8 Rc5 Qf8 Rb5 Bce6 Ka6 Bf5 Rb8 Bc8+ Kb6
q2b2B1/q3pR1b/1p6/BK4NP/1B2n1r1/P1bn3r/1kb3PP/1RrqR3 b - - 0 1 illegal: Other
3b4/Bp1PpPPP/5b1R/5N2/3n1b1r/1B2nBq1/1NN1k1rr/K2nqb2 b - - 0 1 illegal: No proof kernel
n2K1n1r/r1P1PR2/3BkR1p/1q1n2pr/1p4P1/1B1PN1B1/2q5/R1qb2b1 b - - 0 1 legal: proof: f4 e5 h4 exf4 a3 b5 a4 bxa4 h5 g5 Rh2 Qf6 Rh1 Qg6 hxg6 Bb7 Rh3 Ba6 Rh1 Bc8 b4 c5 c4 Ke7 b5 Ke8 Qb3 d6 Qb4 cxb4 c5 d5 Na3 Nh6 Nc4 dxc4 Rh4 Ng8 Rh3 Nh6 Rh1 Ng8 Kf2 Kd7 Kf3 f5 e4 a5 g7 h6 e5 a3 c6+ Ke6 c7 a2 b6 c3 b7 a4 g3 a3 Rh2 c2 Bh3 Bc5 Rf2 Nf6 g8R Nfd7 Bg2 Nb6 Bb2 c1Q Nh3 Qc2 Rg7 Ra7 Bh1 Na8 Rf7 Nd7 b8B Nf8 g4 Bd7 Rff1 Bg1 Nf2 Ba4 Nd1 Bb3 Ne3 Ba4 Rac1 a1R d3 a2 Rce1 Rc1 Bd4 a1Q Bc5 Qd4 Bg2 Qd7 Bd6 Qb5 Rf2 Rd1 Bh1 Rd2 Ra1 Re2 Rff1 Rh2 Bg2 Rh5 Rf2 Ra6 Ba7 Ra5 Bd4 Ra7 Bc3 Bb3 Be1 Ba4 Bf1 Bb3 Be2 Ba4 Bd1 Bb3 Kg2 f3+ Kg3 Ba4 Rf1 f2 Kf3 f4 Ke4 f3 Rf6+ Kd7 Kf5 Bh2 Rh1 f1N Bg3 Bg1 Rh2 f2 Rf7+ Kc6 Kf6 Bb3 Ke7 Ba4 Ng2 Kd5 e6 Ne3 Kd8 f1Q e7 Ke6 Rh1 Nd5 Ne3 Qe1 Rh2 Qed2 Rhf2 Qcc1 Bb3 Qdc3 Ba2 Bd1 Bb3 Q3c2 R2f6#
4Bb1Q/2pr1P2/b1P1nK1P/4r2B/2nqq3/2p4N/PNB3pr/2N2bbk b - - 0 1 legal: proof: g4 a5 b4 d5 bxa5 g5 h4 f5 f4 Kf7 e4 Ra6 c4 Ra7 c5 Ra8 Na3 Ke8 Rh3 Bd7 Rc3 Bc8 Rc4 fxe4 f5 dxc4 Bb2 h6 Be5 Bd7 Bf4 Be6 Rc1 Bc8 Rc3 Ra7 Rg3 gxf4 g5 Ra6 g6 Ra8 Rg5 hxg5 Ke2 Kd7 d4 Kc6 f6 Kd5 c6 b5 f7 e5 h5 b4 a6 g4 a7 e3 g7 Ke4 d5 g3 d6 c3 d7 f3+ Ke1 e2 Qa4 Ne7 g8B Nf5 Nc2 Nd6 Qa3 b3 Na1 b2 Qb4+ Nc4 Nb3 b1Q+ Nc1 Na6 Nh3 Nc5 Qb8 Ba6 Bh7+ Ke3 Bf5 g2 Bc2 e4 Qc8 Rb8 a8B Ne6 Bb7 Qf6 Qd8 Qd4 Bc8 Rb5 Qe8 Rd5 d8N Rd7 Nb7 Rh6 Nd6 Rh8 Ng1 Kf4 Nh3+ Kg3 Qd8 Kh2 Qf6 Rh6 Qe5+ Kh1 Qh8 Qd5 Kf2 e1R Kg3 e3 Kh4 f2 Bfd3 f1B Bg6 e2 Kg4 Qd4+ Kf5 Qe4+ Kf6 Qb6 Nb7 Qa7 Nc5 Rh7 N5d3 Qad4+ Ne5 Re7 Bd7 Rd1 Ng5 e1B Nh3 Bf2 Be8 Re1 Bf5 Bg1 Bg4 Rd7 Bgd1 Qdd5 Ned3 Re3 Nb2 Qed4+ Kg6 Re5 Kf6 Q5e4 Bg4 Rg7 Be2 Rg4 h6 Rh4 Ng5 Rh3 Bh5 Rh2 Nh3
1b6/NPr2p1b/b1NBPP1B/n2b3b/3p4/Rn3N1K/r1BpqP2/b4k2 b - - 0 1 illegal: No proof kernel
Q1q1N3/rN1R1b1r/1nR1pr2/r1N1Kb1q/p7/1PppPPn1/1P6/4k2R b - - 0 1 illegal: Other
1r2q2R/N1rbP1R1/b2p3R/b6p/4k1bq/P6P/1rnPN3/1BKN1bnn b - - 0 1 legal: proof: f4 c5 b4 e5 e4 exf4 b5 f3 b6 g5 Qe2 f2+ Kd1 axb6 Qa6 b5 Qa4 c4 Bb2 b4 Qb3 cxb3 Be5 Nh6 Bg3 Ng8 Bf4 gxf4 c4 Ke7 g4 Ke6 e5 h5 a3 f5 h3 b5 c5 Kd5 g5 f3 c6 f4 e6 b2 c7 b3 g6 b4 g7 Ke4 Bc4 f1B Rh2 f2 Ne2 f3 Nf4 Nh6 g8R Rh7 Nd3 Qe8 Rg7 Nf5 Re7 Nd4 Bb5 Nbc6 Ba4 Ne2 Rf7 Rb8 Bb5 Ng1 Rg7 Nd4 Ne1 Nc2 Ba4 Bfa6 Rh1 f1N Re7 f2 Ng2 Ng3 Rf7 f1B Rh2 Nh1 Nf4 d6 Rg7 Bd7 c8N Be7 Ne2 Bd8 Bb5 Ba5 Na7 Ra8 Bc4 Kf3 Rg8 Nd4 Ng3 Bdc8 Ne4 Rc7 Bb5 Bd7 Nbc3 b1B Bc4 b2 Bd3 Rb8 Nf2 Ba2 Bf5 B2c4 Bg6 b3 Rg2 Bcd3 Bh7 Bf5 R2g7 Bg4 Rc1 b1Q e7 b2 Rh8 Qf5 Ra1 Qf6 Rb1 Nb5 Kc2 Qh4 Re1 b1R Nd1 Rb2+ Kc1 Nd4 Re6 Kf4 Bb1 Nc2 Ne2+ Kf3 Rf6+ Ke4 Rfh6
b5Nr/rNrpR2r/2n1P2p/k4pn1/1r3P2/3P1PK1/3NqQ1R/2b1Rqn1 b - - 0 1 illegal: Other
1nbqQ3/Bp1np3/3B2Rk/Rb1PP3/p2brP1K/P1bp4/5RB1/b1b1r3 b - - 0 1 illegal: No proof kernel
1r4qN/1p1b1p2/pQn3p1/Bb3P2/1N3PBr/p1B3Pp/2K1P3/b1nr1kN1 b - - 0 1 illegal: Other
3q1r1b/1qnn2P1/P2RQ2b/4bN2/1n2kRPN/1R1n3P/Q5K1/n2n2n1 b - - 0 1 legal: proof: d4 a5 b4 axb4 Qd3 c5 Qd1 cxd4 e4 d5 Ba3 b5 Qc1 d3 Qd1 d4 Bc1 Ra6 Be2 Rd6 Bf1 Rd5 exd5 Qa5 Be2 Qc7 Bf1 Qd8 g4 h5 Bg5 h4 Bg2 h3 Bf6 hxg2 g5 gxf6 f3 Bg4 fxg4 Bg7 Nh3 Bh6 Ng1 Bf8 Kf2 Kd7 a4 Kd6 c4 Ke5 c5 f5 c6 d2 d6 f4 d7 f5 h3 b3 a5 b2 c7 b4 c8Q d3 a6 f3 g6 f4 Qb3 d1N+ Ke1 f2+ Kd2 f1N+ Ke1 f3 Qa4 b3 Qa5+ Ke4 Na3 b1N Qg5 e5 Qe7 b2 Nc4 Nc6 Qf7 Na3 Rb1 Ng3 Qg7 f2+ Kd2 f1N+ Ke1 Nd2 Qe7 Nb4 Qcc5 Bh6 Qe8 Nf6 Qee7 Nb3 Qc7 Ne2 Qa5 Nb5 Qh7 Nf2 Qa2 Nc7 Nf3 g1B Kf1 d2 Ne3 d1N Rc1 b1Q Qa3 Bh2 Qe7 Nfd3 Qa1 Rf8 Qa2 Ng1 Rc3 Na1 Nf5 Qb3 Qe8 Qd5 N3h4 Qb7 Kg2 Nf3 Ne7 Qdc8 d8R Ke3 Qd5 e4 Rb3 Be5 Rd6 Nd7 Ra3 Qd8 Rf1 Ng1 Qa2 Bh8 Rb6 Kd4 g7 e3+ Rf3 e2 Rd6+ Ke4 Rb3 e1B Qf7 Bc3 Nef5 Bb2 Qe6+ Be5 Rf4+
nrQbBqN1/3q4/2qNnP2/b1NPQ1b1/n3q3/3Pn1P1/2B5/K3kb2 b - - 0 1 legal: proof: e4 b5 h4 c5 b4 f5 a4 g5 Ra3 gxh4 Rb3 f4 axb5 Bg7 b6 Bh6 b5 Bf8 Rb4 cxb4 c4 a5 c5 d6 c6 Bf5 Bb2 Bc8 Rh3 Ra7 Re3 fxe3 Bd4 Rd7 Bc5 dxc5 Qg4 Na6 Qd1 Rd5 exd5 Nb8 f4 Kf7 c7 Kg6 f5+ Kg5 f6 Kf4 b7 Kg3 b6 e5 Qe2 h5 Kd1 a4 Kc2 h3 Kb2 e4 Qa6 Kf2 Qc4 h2 Qc3 h1Q Qc1 b3 Bd3 h4 Ba6 c4 Qd1 e2 Qc1 e1N Qd1 c3+ Ka1 a3 Nf3 e3 Bd3 c2 Ng1 c1B Bf5 b2+ Ka2 e2 Nf3 h3 Ng1 h2 Bh3 Be7 Bd7 Nd3 Be6 e1B Qg4 Nc5 Nf3 Nbd7 b8N Ba6 c8B Nh6 b7 Nf5 Nd4 Nb6 Qg7 Qf8 Qg8 Bd8 Ndc6 Ne3 Qg4 Na8 Bf5 Bf1 Nd7 Ne6 Nc3 b1N Ka1 a2 Nb5 Nc3 Nc5 Na4 g3 Qe4 b8Q h1Q Nd6 Qh7 Bg6 Qd7 Ne7 Qc6 d3 Bea5 Bd7 Ke1 Ng8 Rh2 Qf4 Nc3 Bge8 Qc8 Nc4 Nf5 Na6 Rb2 Ba4 Qd7 Qc8 Rb8 Qfc7 Bg5 Qe5 Ne3 Bd1 Na4 Nd6 N4b6 Kb2 a1Q+ Kb3 Qc3+ Ka2 Na4 Bc2 Qcc4+ Ka1 Qcc6 Nc5
n3q3/qNr3R1/1Qr1Qb2/P1b1PN1R/pn2r3/n5PP/2p2nk1/2K1Q3 b - - 0 1 legal: proof: f4 g5 c4 e5 c5 exf4 c6 dxc6 Nf3 c5 Ng1 c4 Qb3 h5 Kf2 h4 Ke1 g4 Qb6 g3 hxg3 h3 Qb3 h2 Qd1 Bh3 gxh3 a5 b3 b5 Nf3 a4 Bb2 a3 Ng1 axb2 a4 Qg5 a5 Qe5 b4 Qg5 Bg2 Qe7 Be4 Qd7 Bc2 Qd8 Ba4 bxa4 e4 Ke7 d4 Kd6 Kd2 f5 d5 Ke5 d6 c5 d7 f3 b5 f4 b6 f2 b7 f1Q Na3 b1N+ Kc1 c3 Kc2 f3 Qd3 f2 Nb5 c4 Ne2 Rh7 Ng1 Bc5 Qf3 Ne7 Qe2 Qe8 d8Q Nec6 Qe1 Nd7 Qe3 Rc8 Qf3 Nb6 b8Q+ Rhc7 Nd4 Na8 Qd1 Nb4+ Kc1 c2 Nf5 Na3 Ne2 Qg1 Nd6 f1R Nd4 Rf4 N4f5 Qd4 Rg1 h1N Qe1 Nf2 Qd7 Rc6 Qb5 R8c7 Rf1 Qe3+ Kb2 Rh4 Rb1 c1B+ Ka1 c3 Nb7 c2 Qb6 Rf4 Rb3 Bd2 Kb2 Rg4 Rc3 Qd4 Qf7 Bg5 Qc4 Rf4 Kc1 Bf6 Qce2 Qdd7 Rd3 Qde7 Rd7 Qh7 Rg7 Rg4 Nh6 Kd4 e5 Re4 Qg4 Kd5 Qe6+ Kd4 Qd1+ Ke3 Qe1+ Kf3 Nf5 Kg2 Ne7 Ng4 Rf5 Nf2 Rh5 Qb8 Qc4 Qg6 Qf7 Qa7 Qe6 Qe8 Nf5
r1Q1r2b/2n4r/1Pp2n2/pQ4K1/Q3k1Pp/1P1P4/N2B1bnr/4Nq1B b - - 0 1 illegal: No possible last move
2K3bb/N4P1P/1NQ1Q2k/5rBn/1q3r2/1Pq2r1B/3PBn1n/rn1q1n2 b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 g5 h4 f5 c4 dxc4 e4 fxe4 f4 Bg7 f5 Bh6 Ra3 Bf8 Rf3 h6 Rf4 gxf4 g5 h5 Rh2 Qd3 Rg2 Qd8 Rg4 hxg4 Ke2 Kf7 b6 Kg7 b7 a5 b3 e5 h5 c5 g6 f3+ Ke3 a4 f6+ Kh6 g7 a3 Bh3 f2 Qc2 f1N+ Ke2 e3 Qa2 c3 Qc2 g3 Kf3 a2 Ke4 a1R Be6 e2 Kf5 e1Q Nf3 c4 Nd4 g2 Nf3 g1N Bd7 e4 Ke6 e3 Nh4 e2 Na3 Qe7+ Kf5 Nc6 b8Q Nh3 Nf3 Nf2 Nb1 Na5 Ba3 Qb4 Ke6 Qd1 Qc1 e1N Nh4 c2 Qg3 c3 Bb2 Nc4 Nf3 R8a4 Nd4 Na3 Qe5 Nf3 Nb5 N3h2 Na7 Ra5 Qe4 Rf5 f7 Nf6 g8B Bg7 Bh7 Rg8 Qc4 Bh8 Qg4 Rf4 Bd3 Rg5 Be2 Rgf5 Qh3 Ba6 Qe3 Bd3 Bc8 Ng8 Kd7 Nf6+ Kc7 Be4 Qb6 Rf3 Qe6 R5f4 Bd7 Bh7 Kd8 Bg8 Kc8 Kg5 h6 Nh5 Qe8 Kg6 h7 Kh6 Bh3 Qe1 Qd1 c1Q Qc2 Qed1 Qf5 c2 Bf6 Qb2 Nc3 c1R Qfe6 Nb1 Q8c6 Qbc2 Nd5 Qcc3 Nb6 Rc2 Qe5 Rca2 Qd5 Ra5 Qe6 Raf5 Bg5+
qnq1br2/BP2n2P/1R6/n1r2b1n/7b/5PQ1/K1RPRnrb/2R3kN b - - 0 1 illegal: No possible last move, all moves rejected
Q4q1N/1n1n1b2/q2P1Qrb/r1b3PP/1R2r1Pq/1Rbp1Rk1/5N2/2K3b1 b - - 0 1 legal: proof: c4 a5 b4 axb4 d4 g5 d5 e5 g3 g4 Bb2 h5 Bd4 exd4 Kd2 d6 c5 dxc5 Ke1 c4 Bg2 h4 f3 h3 fxg4 hxg2 g5 Rh3 Nf3 Rh7 Ng1 Rh8 Kd2 Kd7 e4 Kd6 a4 Ke5 h4 f5 a5 b5 a6 c5 a7 c3+ Kc2 b3+ Kc1 f4 Qc2 f3 Ra5 c4 Qb2 b4 Qd2 d3 Rb5 f2 Ne2 g1B Rb6 f1Q+ Qd1 c2 Rh6 b2+ Kd2 b3 Rh2 c1B+ Kc3 Be6 Nf4 Nf6 Nh3 Bf7 Re2 Ne8 Nf2 Nd6 Rh7 Nb7 Na3 b1R Re3 b2 Nb5 Bc5 Nd6 Re8 Rf3 Nd7 Qe2 Qh3 Qf1 Qe7 Rh6 Qf8 Rhf6 Ra1 R6f4 b1Q Rg4 B1a3 Kd2 Qb5 h5 Qa6 Rgf4 Qh4 g4 Rac8 a8R Rc6 Rb8 Ra2+ Kd1 Bab4 Kc1 c3 Ra8 c2 Rb8 Nd8 Rb5 Bc3 Rb3 Ra5 Rf5+ Kd4 e5 Nb7 e6 Rb6 R5f4+ Ke5 e7 Rc6 Rfb4 Rb6 Nde4 Rg6 Rh3 Kf4 Rg3 Rc8 e8Q Bg7 Qd8 Bh6 Rh3 Rcc6 Qa8 Rce6 Nd6+ Re4 Rf3+ Ke5 Kd2 c1B+ Kd1 Bb2 Kd2 Ba1 Kc1 Be6 Rb5 Bc3 Nf7+ Kd4 Nh8 Ke5 d6 Bf7 Re3 Kf4 R5b4 Re6 Re2 Kg3 Re3+ Kh2 Rf3 Rg6 Qe2 Kg2 Qd2 Kh2 Qf4+ Kg2 Qf6 Kh2 Rf4 Kg3 Rf3+
Nn2rN1r/pn5k/P5BN/3P2q1/2P1r3/Q1qQnr2/1P1q2B1/K2bb1b1 b - - 0 1 illegal: No possible last move
2rb3r/2R1n3/n2n1k1P/2N3n1/PrPpq2n/3P3Q/bRQbR3/K4N1n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 a4 hxg4 Bd3 c6 Bb5 cxb5 Ba3 bxa3 h4 Kf7 f4 e5 c3 g5 f6 d5 f5 b4 h5 b5 d3 d4 Kd2 g3 Kc1 b3 h6 b4 Rh4 e4 Rh1 e3 Qd2 g2 Ra2 e2 Qd1 e1N Rc2 g4 Ra2 g3 Rc2 a2 Kb2 a1B+ Kc1 b2+ Kd2 b3 Qe2 Qe8 Kd1 Qe4 Qd2 Be6 Qf2 Nf3 Re2 Be7 Re1 Bd8 Qf1 Na6 Re2 Ne7 Rh2 Ng5 Nd2 b1N Kc1 Na3 Ngf3 g1N Qh3 g2 Nf1 Nb5 Kb1 b2 N3d2 N1f3 Nb3 g1N Nc5 Nh4 Rhf2 Bb3 c4 Rc8 Rh2 Nd6 Rhf2 Kg8 f7+ Kh7 f6 Kg6 f8R Ba2+ Kc2 b1R f7 Bc3 Re8 Rcb8 f8Q Rc8 Qff3 Be1 Qfg2 Rb4 Ref8 Bd2 R8f7 Ng8 Rc7 Ne7 Qhg4 Nh3 Qd7 Nf4 Qdh3 Nh5 Qgh2 Ng3 Q2g2 Bb3+ Kb2 Ba2+ Ka1 Nh1 Qgh2 Bf4 Rb2 Bd2 Re2 Kf6 Re1 Be3 Qc2 Bd2 Re2
Qr4QK/1nbP1b2/1P1Nb1b1/6qb/nr3R1k/3PP3/r1p2bn1/R4R1N b - - 0 1 legal: proof: c4 d5 cxd5 h5 f4 e5 g4 exf4 a4 b5 b3 bxa4 Bh3 g5 Bb2 Bc5 Qc1 Ba3 Kd1 Bd6 Be5 f3 Bf4 gxf4 g5 f2 Bg4 hxg4 Kc2 Na6 Qd1 Bf8 Kc1 Nb8 Kb2 Ke7 Kc3 f1B Kd4 a5 Ke5 f5 h4 c5 e3 c4 h5 f3 h6 a3 h7 g3 g6 c3 b4 a4 b5 f4 g7 c2 b6 a2 Na3 g2 Nb5 a3 Qc1 f2 Nf3 g1B Nfd4 f3 Rb1 a1N Rh6 a2 Qe1 Nf6 g8Q Be2 Rh1 f1B Na3 f2 Rb4 Nb3 Nb1 a1R Qc1 Na6 Qb2 Nbc5 Rb3 Ra4 Qa2 Rb4 Ne6 Nb7 Qa1 Bh5 Ng7 Nac5 Na3 Bd3 Rc3 f1B Rc4 Na4 Rf4 Bdg6 Nc4 Be6 Nd6 Bc4 d3 Bf2 Rf1 Bef7 Nge8 Bh6 Ne4 Bg5 Qa3 Bgh4 Qa1 Bhg3 d6+ Kd7 Qf8 Nac5 Rb1 Rg8 h8R Bd1 Rh1 Raa4 Rf1 Nd5 Qa3 Ra6 Ra1 Bdh5 Qa5 Bh2 Ng3 Qg5+ Rf5 Nf4 Rfe1 Ng2 Rf1 Ra8 Qa7 Bb3 Qb8 Ra2 Qa8 Na4 Qg7 Rf8 Qg8 Bbd5 Ng7 Rb8 Ne8 Qg4 Kf6 Qg5+ Kg7 Ke6 d7 Bb3 Ne4 Bc7 Rf4 Ke5 Kh8 Bbe6 Rh4 Kf5 Ng3+ Ke5 Nh1 Kf5 Rh2 Kg4 Nd6 Qd8 Rh3 Qg5 Rf3 Kh4 Rf4+
N3N2k/2br2Q1/n2b2r1/5p1R/2PPbR2/3r1Nqr/2Pb2rP/1Q1n2bK b - - 0 1 illegal: No possible last move
1nNrq3/2P3Pn/1Bn1q1Pr/1B1N1k1b/4P1nb/qp1n2Q1/1n6/3QNK2 b - - 0 1 legal: proof: b4 a5 h4 axb4 d4 c5 a4 cxd4 g4 f5 g5 e5 Ra3 e4 Rd3 exd3 Rh3 g6 Rg3 Bc5 h5 Be7 hxg6 Bf8 Rg4 fxg4 c4 Ke7 f4 Ke6 g7 d5 a5 h5 g6 b5 a6 g3 a7 b3 c5 h4 c6 g2 c7 h3 Bb2 d2+ Kf2 b4 Nc3 h2 Qe1 d1Q Nh3 h1N+ Kg1 d3 Nf2 d2 Nb1 d4 Bc1 b2 Nh3 b3 Qf2 d3 Qg3 Kf5 Nf2 Be7 Ng4 Qe8 Nc3 b1Q Nb5 Qb2 Qh4 Nf2 Nc3 Rh6 Nd5 Nf6 Ne5 N2g4 Qg3 Nh7 Nf3 Bh4 Ne1 Qa3 Bb2 Qda1 Bd4 d1N Bf2 d2 Bb6 Ke4 f5 Qae5 f6 Q5e6 f7 Kf5 f8N Nb2 Nd7 d1N Nf3 Nde3 Ne1 Ne5 Kf2 g1N Bg2 N3g4+ Kf1 Nh3 Be4+ Kg5 Bd3 Nf4 Bb5 Kf5 Be3 Ba6 N7b6 Nfd3 Nc8 Bb7 Bb6 Bc6 Nf6 Bf3 Nd5 Nec6 Nf6 Na6 Nd5 Rb8 a8Q Nde5 Na7 Rd8 Nc8 Nab8 Qa4 Ned3 Qd4 Ngf6 Qdg1 Bg4 Qh1 Bh5 Qhg1 Ng4 Qd4 Nf4 Qd1 Nfd3 e4+
2n2r1b/Pr1q1RQ1/1k5p/N1P1n1r1/5qP1/qPr1B3/6rr/1K1bR1RR b - - 0 1 illegal: No possible last move, all moves rejected
1n3qN1/3qP2N/3qrQrq/r2Q3P/P1Q4n/1bP1p3/1r1q3b/1kBB3K b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 c5 Ra3 cxd4 Ra2 h5 gxh5 e4 h4 f6 Ra3 f5 Rd3 Nh6 Rhh3 Ng8 Rhg3 Ra5 Rg4 exd3 e4 Ra6 e5 Ra8 Re4 fxe4 f4 Ke7 Kf2 Ke6 Kg2 Kf5 e6 d5 c3 g5 h6 b5 h5 b3 h7 e3 Qe2 Ke4 f5 d2 f6 d1Q f7 b4 Qb2 d3 Kh2 d2 Qa1 g4 Bb5 b2 Na3 b1Q Kg2 b3 Be8 Kd3 Nc4 Kc2 Na5 g3 Qa2+ b2 Nf3 d4 Qa1 d3 Ng5 Bd6 f8Q Ne7 Qg8 Nf5 e7 Be6 Nf7 Bb3 Ne5 Nh4+ Kh3 g2 Kh2 g1R Qa2 Rg6 Bf7 Qf8 Nc6 Ra5 Bd5 Re6 Qg4 Rg8 h8Q Rgg6 Qf6 Qe2+ Bg2 d1Q Nd8 d2 Nf7 Qb5 Bd5 Qd7 Nh6 Qe1 Ng8 d1Q Bc4 Qed2+ Be2 Bc7 Qgf3 Q2d6 Qd5 Qd2 Kh1 Qh6 Nf7 Qa1 Qa3 b1R Qb4 Rb2 Ng5 Kb1 Nh7 Qa2 Bb5 Qf8 Bc6 Qa3 Ba8 Qf4 Qbc4 Qad6 Qdc5 Q4h6 Bf3 Q6c6 Q5d4 Bh2 Qdd5 Qcd6 Bd1
1b1r4/3nPB1Q/1bnR1BrP/1qnk2b1/2p3rq/Pb2P3/Q2r2R1/1K2B3 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 dxc4 b4 axb4 Nc3 g5 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Ra5 Nf2 Ra8 Ng4 hxg4 h4 Kd7 d4 Kc6 Kd2 f5 Kc2 b5 e6 c3 g6 f3 h5 f2 h6 b3+ Kb1 f4 e7 b2 a3 f3 g7 c2+ Ka2 b1R Rh2 b4 Rh4 g3 Bh3 f1R Bg4 g2 Rh1 g1B Qe1 f2 Be6 Nf6 g8Q Nfd7 Bf5 Ra6 Qg6+ Kd5 Qh7 c5 Bh3 Nc6 Qd2 Rd1 Qdd3 f1N Bg4 Rd2 Bh3 Ng3 Qf3+ Ne4 Bb2 c1B Rh2 c4 Qg3 Nec5 Qb3 Bg7 Qbc2 Be5 Rg2 Bb8 Bc3 Rg8 Bf5 Rg4 Bg6 Ra8 Be8 Ba6 Bh5 Bb5 Bg6 Ba4 Bf7+ Kd6 d5 Rb3 Bb2 Rbg3 Kb1 b3 Bc3 b2 Qb3 Rg6 Qa2 R3g4 Ba5 Ke5 d6 Bb3 Bb4 Qh8 Ba5 Qf6 Bb4 Qh4 Bc3+ Ke4 Bf6 Nf8 d7 Be3 d8B Nfd7 Ba5 Bf2 Be8 Kd5 Bac3 Be5 Bb4 Rd8 Ba5 Bb8 Bb4 Rc2 Be1 Bg5 Bf7+ Kd6 Rg3 Rd2 Re3 Bg1 Re4 Bd4 Re6+ Kd5 e3 Na6 Qg8 Bb6 Qh7 Nac5 Bg3 Ba4 Bf2 Rd3 Bg3 Rb3 Kc2 Rb4+ Qb3 Rb5 Ra2 Rb4 Be1 b1Q+ Kc3 Rb5 Rg2 Rb4 Qa2 Rb2 Qb3 Rd2 Qc2 Qd1 Kb2 Qc1+ Ka2 Qd1 Qb2 Qb3+ Kb1 Qb4 Qb3 Qb5 Qb2 Bb3 Qc2 Ba5 Qa2 Bb6 Rd6+
3r4/3P2Pr/1b1q1qbR/Q2p1Pbr/2N1nk2/1N2q3/n1KbP1Q1/3Q1Rr1 b - - 0 1 legal: proof: d4 d5 h4 g5 c4 gxh4 a4 dxc4 d5 b5 axb5 Ba6 Ra2 Bb7 Ra1 Bc8 g4 f5 d6 Nd7 g5 Nb8 d7+ Kf7 Bf4 Ke6 Bd6 exd6 Bh3 Ke7 Bg4 fxg4 Kd2 Ke6 f4 Kf5 b4 c5 g6 h5 b6 a5 g7 h3 b5 h4 b7 h2 b6 c3+ Kd3 d5 Nh3 a4 Nf2 a3 Qe1 c4+ Kc2 a2 Na3 g3 Nh3 g2 Rb1 a1R Kd1 g1B Qf2 c2+ Kc1 Rh5 Kb2 c1B+ Kc2 c3 Qf1 Bd2 Ng5 h3 Ne4 Nf6 Kd1 Na6 b8Q Be7 b7 Bb6 Nc4 Nb4 Nb2 Na2 Nf2 Ne4 Kc2 Bg5 Qc7 Qf6 b8Q Ba6 Qf8 Bd3+ Kb3 c2 Re1 c1Q Nc4 Rd8 Qg2 Bb1 Nd3 Rh7 Rhf1 h1Q Nc5 Qh2 Rh1 Bd3 Qa7 Qg3 Qa5 h2 Qf7 Qe3 Qh5 Qd6 Qh6 Qd4 Qh5 Q4f6 Qhf3 Bb1 Qd3 Rh5 Qc2 Rh7 Qd1 Rh5 Rhf1 h1R Rf3 Rh7 Rh3 Rh2 Rh6 Rh5 Ka4 Qcc3 Nb3 Qe3 Qh2 Ng3 Qf2 Kg4 Qg2 Bg6 f5 Rc1 Ne5+ Kf4 Nc4 Qde6 Ka3 Ne4 Ka4 Qc6+ Ka3 Qfd6+ Kb2 Rb1+ Kc2 Qf6 Qb4 Qcd6 Qa5 Ng3 Rf1+ Qf3 Qc1 Ne4 Rd1 Qe3 Rg1 Bc3 Qd2 Rf1 Qd1 Bd2 Rh1 Rf2 Re1 Rf1 Na1 Rfh1 Nb3 Rg1 Rf1+
7K/3Pk1P1/2p1n1b1/Prq5/1rn1rrB1/4bq1Q/2n1NQNP/Bq1n1N2 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 g5 a3 a5 Bb2 axb4 Bc1 g4 a4 Qf6 Ra3 Qd8 Nh3 h5 Rf3 Bf5 Rg1 gxf3 g4 Be6 g5 Bc8 Rg4 hxg4 Kf2 b5 d4 f5 e4 b3 d6 c6 e5 b2 d5 b4 g6 g3+ Kg1 b3 e6 g2 Kf2 g1Q+ Ke1 f2+ Kd2 f3 Ke3 f4+ Ke4 Ne7 Ke5 Nf5 e7 Rh4 Kf6 Ne3 g7 Na6 a5 Nc4 Qc2 Nc7 Nd2 b1R Ba3 b2 Bb4 Rb8 Bg2 f1R Qc3 f2 Qg3 f3 Bh1 Bf5 Nf4 Rb5 Qh3 Bg6 Bc3 Qc8 Be5 Qcg4 Bg2 Rfe1 Bf1 Re3 Be2 f1N Ng2 f2 Bc3 Kd7 e8N Ne6 Nc7 Re4 Be5 Nfe3 Bd1 Rc5 Nb5 f1N Nc3 Rb5 Be2 Nd1 Bf3 Nfe3 Nf1 Nd2 Be2 Bf5 Kf7 Bg6+ Kg8 Nc2 Bd4 Qf2 Be5 Qgf5 Bh5 Qe2 Kh8 Rhf4 Bg4 Ke8 d7+ Kf7 d8Q Qf3 d6 Nc4 d7 Bc5 Qa8 Ke7 Qa7 Bf2 Bc7 Qd5 Qe3 Qc5 Be5 Bg1 Qe1 Be3 Qe2 Ra1 Qd2 b1Q Qf2 Ra4 Ne2 Rab4 Ba1
1r2q3/3b1r1Q/p4B1P/3Q3r/rn2q3/PpN3Pb/3KNPr1/N1n1nB1k b - - 0 1 legal: proof: d4 e5 e4 c5 c4 f5 b4 cxb4 c5 fxe4 c6 Bc5 dxc5 h5 g3 h4 Ne2 h3 Rg1 Qc7 Rg2 Na6 Ng1 Qd8 Bf4 Ne7 Nc3 Rh5 Nf3 Nf5 Qc2 Nh4 Kd1 Qe7 Bd3 Qf7 Kd2 Rh7 Rh1 Rh8 Ng1 Nb8 Nb1 Ng6 Ke1 Ne7 Qd1 Ng8 Bf1 Qe7 Bc1 Qd8 Ba3 hxg2 h4 g5 h5 Rh6 Rh4 gxh4 Bc1 Rh8 h6 Kf7 a3 Kg6 c7 Kf5 c6 d5 Bf4 b5 Ke2 Kg4 Bg5 b3 Qc2 h3 Bh4 b4 Qd3 b2 Qc2 h2 Ke1 h1R Qc5 e3 Ba6 e2 Qa5 b3 Qd2 d4 Qd3 e4 Bb5 Nd7 Qc3 d3 Qd4 Ne5 Qc3 Ne7 Qc4 Nd5 Bf6 Qe8 Qc1 Rh5 Qd1 Bd7 c8N Nb4 Kd2 e3+ Kc3 d2 c7 Ned3 Ba4 Nc1 Nh3 Kf3 Ne7 g1R c8Q Kg2 Bh4 e1R Nf5 e2 Qc4 Kh1 Qc2 d1B Bb5 Rg2 Nd4 a6 Bg5 Rh7 Qd5 Rf7 Kd2 Rb8 Nc3 b1Q Qh7 Qbe4 Ng1 Bc2 Bd8 Bd3 Nc2 Bh3 Ba4 Bb5 Bf6 Bbd7 Na1 Qg8 Nb1 Qge8 Bb5 Rd1+ Kc3 e1N Bf1 Rd4 Ne2 Nbd3 Kd2 Ra4 Nbc3 Nb4 Qa5 Qg4 Qc5 Qge4 Qd5
2RBnqb1/BK1PQk2/1pP3q1/Q3b2R/1n1br3/1B3Pr1/bP1p4/b6n b - - 0 1 illegal: No possible last move
4rqbr/PNP5/R1Q5/b2Qkpn1/pq6/Pn3RrQ/1qrr1P2/5K1N b - - 0 1 legal: proof: e4 g5 h4 a5 b4 a4 d4 c6 d5 cxd5 Qg4 dxe4 Qd1 Qa5 bxa5 e3 g4 Bh6 h5 Nc6 Bb2 Nd8 Bf6 Kf8 Bd3 Ke8 Bg6 Bg7 Be5 Bf8 Bg3 Nc6 Bh4 gxh4 g5 Bg7 Be4 Bf8 g6 Nb8 g7 Nc6 Bd3 Nb8 Bg6 hxg6 c4 d5 a3 Kd7 a6 Kd6 h6 b5 c5+ Ke5 a7 f5 h7 d4 c6 b4 c7 g5 Rh2 d3 Qd2 h3 Ne2 b3 Qd1 b2 Nbc3 b1Q Rh1 d2+ Kf1 g4 Na2 g3 Rg1 h2 Rh1 Be6 Nd4 e2+ Kg2 e1Q Rf1 h1R Qc2 d1R Ne2 Rd2 Qb3 Nd7 Nac3 Qb2 Ng1 Re8 Nb5 Nh6 g8Q Nf7 Qd3 Ng5 Qf3 Nc5 Rb1 Nb3 Qg6 Bg8 Qa8 e6 Rc1 Bb4 Nd6 Ba5 Ne2 Rc2 Rb1 Qb4 Rfc1 Rd1 Nb7 Rdd2 Kf1 Qf8 Qh6 Qe7 Qh1 Qf8 Qc6 g2+ Kg1 Qf6 Ng3 Qh6 Nh1 Qf8 Kh2 g1R Qd8 Re1 Kg2 Re3 Kf1 Rg3 Qdd7 Kf6 Qcd5 e5 Re1 e4 Re3 Ne6 Rd3 Ng5 Rf3 e3 Q5c6+ Ke5 Rd1 Rd6 Rd4 Rd5 Rb4 Rdd2 Rb6 Rh3 Ra6 e2+ Kg1 e1Q+ Kg2 Qe4 Kf1 Rg3 Qd3 Be6 Qdd5+ Kf6 Qdd6 Rg8 Qdc5 Qb4 Qc4 Ke5 h8Q+ Rg7 Qh5 Rh7 Qd3 Bg8 Qh3 Rh8 Qdd5+
q2r4/6n1/1nPP1n2/bpB3P1/1PR3b1/nBQb4/k1r1npb1/1R1K2RQ b - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 gxh4 c3 e5 a5 exf4 Nf3 c4 Nd4 Qb6 axb6 d5 Nb3 Ba6 Na3 cxb3 c4 Bb7 c5 Bc8 Nc4 dxc4 g4 Kd7 d4 Ke6 e4 h5 e5 Kd5 e6 a5 e7 f5 e8Q a4 g5 a3 c6 b2 b7 b1N Qd3 c3 Qe7 a2 Qd7+ Bd6 Qd2 f3 Qd8 f2+ Kd1 c2+ Ke2 Kc4 d5 Kb3 Qe1 f4 Qa5 h3 Be3 c1N+ Kd1 f3 Bg2 f1B Qd2 h2 Qa7 h4 Qf2 h3 Qc5 Nd7 b8R Ngf6 Bd2 Bc7 d6 Ba5 Qe2 f2 Qd4 Rd8 Be1 Na3 Qe8 Bd3 Qee3 Nb6 Be4 Bg4+ Qf3 Ne2 Rg1 h1N Bc3 Nhg3 Qh1 h2 Bf5 Ngh5 Rb1+ Ka4 Qc4 a1Q Bd4 Ng7 Bc5 Ra6 Qc3 Ra7 Qg2 h1B Rb7 Ra6 Rf7 Qa2 Qh3 Bg2 Qh1 Ra7 Bg6 Re7 Bh5 Re4 Re7 Rc4 Re4 Qa1 Qe1 Rc2 Rc4 Qb2 Qd2 Kb3 Qc3+ Ka2 Bf7 Qa1 Be6 Bh7 Bf5 Rb2 Bc2 Bd3 Ba4 Rc2 Qe1 Qe5 Qd2 Qe6 Qe1 Qc8 Qc3 Qa8 Bb3+
5qb1/1qB3bR/rPP4b/1n2brQr/1NB4r/p1r1pB2/PkP1K2B/8 b - - 0 1 illegal: No proof kernel
qrk5/p1BP1RRb/Pq6/qp1QBnrP/4n3/1PQ2brp/4r3/2K1R3 b - - 0 1 legal: proof: f4 e5 c4 exf4 c5 b5 g3 d5 Bh3 Bd6 Bf5 Be5 Bd3 Bc3 Bc4 Ba5 Bd3 Bb6 cxb6 Qe7 Bf5 Qg5 Bd3 Qd8 h4 g5 g4 h6 Bc4 dxc4 Nf3 Qd6 h5 Qf6 Nh4 Qd8 Nc3 Rh7 Ne4 gxh4 g5 Rh8 g6 Bg4 Ng5 hxg5 Rh3 Bd7 Rh1 Bc8 e4 Kd7 a4 c5 d4 f5 Kd2 g4 d5 h3 e5 f3 a5 c3+ Kc2 g3 g7 g2 d6 g1Q b7 c4 b3 f4 a6 f2 Bb2 f1Q Ra5 f3 Kc1 c2 Qe1 f2 Rh2 Nh6 g8Q Nf5 Ba3 Qfg2 Qf8 f1B Ra4 Be2 Bb2 Rg8 Qf1 Qa5 Ra1 Bf3 Rb1 Rg5 Ba1 Qgb6 Qd1 Qh1 Kb2 c1R Qh8 Rc3 Qd5 Rd3 Rg2 c3+ Kc2 Re3 Rgg1 Re2+ Kc1 c2 Qg7+ Kd8 e6 Nd7 b8B Nf6 Be5 Ne4 e7+ Kd7 Bc7 Rb8 Ra1 Bb7 Ra4 Kc8 Rd4 Rg3 Rdd1 Bc6 Rde1 Be8 Qf6 Bg6 Rgf1 Bh7 e8R+ Kd7 Re7+ Kc8 Rg7 Qg2 Qg5 Qh1 Qe3 Rg5 Kb2 c1R+ Qed2 Rc2+ Kb1 Reg2 Qc3 Rce2 Kc1 R2g3 Qc2 Bg4 Rf4 Bf3 Qc3 Ne3 Rf6 Nf5 Rff7 Nd2 Rf1 Bg4 Qdd3 Qa8 Re1 Ne4 Qd5 Bf3 d7#
3K1N2/5pqq/nQ2p3/p3R1pk/2P1rrRP/Pq1RB2R/1r1P1b2/3b2b1 b - - 0 1 legal: proof: e4 c5 f4 d5 b4 cxb4 f5 g6 f6 Kd7 Be2 Nc6 Bc4 e6 Bf1 Nce7 fxe7 dxe4 g4 Kc6 g5 Kd6 Nc3 Kd7 Nce2 Ke8 Bh3 Kd7 Bf5 gxf5 Nf4 h6 g6 Nf6 Nfh3 Ng8 Ng5 hxg5 Ke2 a5 Ke3 b5 Kd4 e3 Kc5 e2 c4 e1B g7 f4 a3 f3 h3 f2 Ra2 f1R Ne2 b3 Rg1 b2 Nd4 b1Q Qf3 b4 Qf2 b3 Qh2 b2 Qf2 Rb8 Qf5 Rh4 Ne2 Bb7 Rg4 Nf6 g8R Ne8 Qf2 Nc7 Kb6 Qh7 e8R b1Q+ Bb2 Qf6 Nf4 Na6 Rd8+ Ke7 Rd3 Qfg7 Rh8 Qd1 Qg1 Bf2+ Bd4 Qa4 Be3 Kf6 Rb2 Qb3+ Ka7 Ba8 Ng6 Bf3 Rb1 Kf5 Re1 Bd1 Re2 Be7 Nf8 Rb7+ Ka8 Bc5 Re1 Rb4 Re2 Bb6 Kb7 Ba7+ Kc8 Rb7 Rg3 Re4 Rg4 Kf6 Kd8 Rb6 Nd7+ Kg6 Nf8+ Kh6 Qh2 Kh5 Qc7 Rb5 Qb6 Bg1 Rf2 Rb4 Rf5 Rff4 Rc5 Qa2 Re5 Rb2 h4 Qb3 Rg8 Qgh6 Rg6 Q6g7 Rf6 Rf1 Rf3 Rf2 Rh3 Rff4 Rd4 Qb5 Qb8 Qhg8 Rd3 Q8h7 Bd4 Bc5 Qb6 Qb3 Bc3 Bce3 Bd4 Bef2 Be3
nB2bqb1/n6r/p2p2k1/2Q1B1bR/2b3Pp/P1PB2NP/b3K1p1/1n5B b - - 1 2 legal: proof: b4 b5 g4 e5 d4 exd4 a3 g5 Nd2 c5 Nc4 cxb4 Nb6 f5 Rb1 f4 Rb3 Bc5 Nxa8 Bf8 Rg3 Na6 Nh3 fxg3 f4 Nb8 f5 Na6 Nf4 gxf4 Bh3 Nb8 Bg2 Qb6 Bf1 Qd8 e4 Kf7 c3 h5 f6 d6 e5 d3 e6+ Kg6 h3 a6 e7 d2+ Ke2 h4 f7 b3 e8B b2 Kf3 b1B Nc7 b4 Qb3 d1B+ Be2 Ne7 Rh2 Ba2 Qb2 b3 Ba4 Be6 Bb5 Bh6 f8B Bg5 Be3 Bg8 Rf2 Nd7 Bc6 Nc8 Nb5 Rh7 Nd4 Ndb6 Nf5 Na8 Bg7 Qf8 Be5 Na7 Qb1 Bc2 Qg1 b2 Bd3 b1N Ke2 Ba4 Bh1 g2 Bb6 Bb5 Bc7 Be8 Bb8 f3+ Ke1 Qf6 Ng3+ Qf5 Rd2 f2+ Kd1 f1B Qc5 Kh6 Rf2 Qf8 Rf5 Kg6 Ke1 Be2 Kf2 Bd1 Ke1 Bdb3 Ke2 Bbc4 Ne4 Bd8 Rh5 Bg5 Ng3+
nR4r1/BPBp2rq/Q3rpp1/1K4Pn/5P1p/P1Bn1r2/1bB3kq/1N6 b - - 1 2 illegal: No proof kernel
B3n3/1nP2q2/qN4k1/BQp3B1/p4bPK/rnPp4/1Pp2rNQ/3rr3 b - - 0 1 illegal: No proof kernel
1b2B3/p1B2PN1/rBKQq1P1/bp4p1/3p4/nPPp2pr/3N1b2/3k1Q1n b - - 0 1 illegal: No proof kernel
5b2/2b1Q1pQ/p1NN1r1q/P2p1q2/1B1BB3/1k2r1PP/P3bn2/bK1n2nq b - - 0 1 illegal: Other
1b4n1/4Q1p1/k2B4/p1n3PP/rrb3R1/1P1nb1KQ/P2pR1Bn/qr2r2Q b - - 0 1 legal: proof: f4 e5 g4 exf4 d4 c6 c4 h6 d5 h5 g5 Qc7 Nd2 Qd8 Ngf3 cxd5 c5 b5 Nc4 bxc4 Ne5 Ke7 Ng4 hxg4 Bg2 Ke8 Bh3 Nh6 Bf1 Ng8 Kf2 f5 h4 c3 e4 d4 b3 d5 h5 Kd7 e5 Kc6 e6 Kb7 e7 c2 e8Q f3 Rh3 g3+ Kg1 d3 c6+ Ka6 c7 f2+ Kg2 f4 Qf7 f3+ Kh1 g2+ Kh2 g1B+ Kg3 d4 Be3 c1N Qd7 Bd6+ Kh4 Qf6 Qd8 Nd7 Rb1 Nc5 Rh2 Be6 Bg2 f1R Bh1 d2 Bf2 d3 Be1 f2 Qd7 Qa1 Qe2 d1R Qe5 d2 Qd5 N1d3 Qe4 Bc4 Qde7 Rb8 Kg4 Rb4 Bg2 Rh6 Qd5 Re6 Rh4 Re4+ Kf3 Bf4 Rg4 Bgh2 Rc1 Be3 Rc3 Rb1 c8Q+ Ka5 Qdc6 Bb8 Qa8 Rf4+ Kg3 Kb5 Qf5 a5 Qf3 Ka6 Q5d5 Bb5 Rc4 Ra4 Re4 Bc4 Qdd7 Bd4 Re2 Be3 Bh3 Rb4 Qh1 Rg1+ Bg2 f1N+ Kh4 Re4 Bg3 Nh2 Bd6 Rge1 Kh3 Bf7 Qde6 Ra4 Qf5 Reb4 Kg3 Bc4 Qff1 Nf3 Qh3 Nh2 Qh1
b1N2b1k/2Rr1r2/K1pPP3/3p2q1/Nr1P2B1/bqP1Nnpq/3Np1n1/1Q6 b - - 0 1 illegal: Other
2Q1Rq2/2Pb3r/rpr1B3/N2P1Np1/1P2KnPb/N1q1p3/2p1q1kN/n2r4 b - - 0 1 illegal: No proof kernel
B3Nn1R/p3B1b1/pQ6/np1pp1p1/rq1rP1K1/4PBP1/k3bP2/n4Bn1 b - - 0 1 illegal: Other
kB2n3/1P4B1/2qr4/2Nqr1n1/Br1Q1r1n/N2K2Pn/2n1PBrP/3b4 b - - 0 1 legal: proof: a4 b5 axb5 c5 d4 cxd4 Kd2 h5 b4 e5 c4 g5 g3 h4 Nf3 g4 Kc2 Bg7 Nfd2 Bh6 Rg1 h3 Rg2 Bg5 f4 exf4 Ra3 hxg2 Rf3 Be7 Rf2 Bc5 Rf3 Bb6 c5 gxf3 cxb6 f2 b7 g1N b6 a5 b5 d5 Nc4 Kd7 Ba3 f5 Qd2 d3+ Kc3 a4 Bc1 a3 Bg2 f1Q Na5 f3 Qc2 f2 Nb3 d4+ Kd2 f4 Bb2 a2 Qc4 a1N Qf7+ Ne7 Qh5 f3 Qc5 Rh4 Qc2 Ng6 Nc3 Nh3 Bc1 Ra5 Nd5 Ng5 Ne7 Na6 b8B Nc7 b7 Ne8 b6 Re5 Qb2 Nc2 Qc3 Qh1 Na1 f1R Bc7 f2 b8B Rg1 Be4 f1R Bf3 Rg2 Bd5 Rff4 Qa3 Rhg4 Nb3 Nh4 Bf3 Ba6 Qa4+ Bb5 Nd5 Kc8 Ne3 Qd5 Nf5 Kb7 Qa1 Ba4 Ne3 Ka8 Nc4 Qc6 Ba3 Qd5 Qg1 Qc6 Bc5 Qd5 Kc1 d2+ Kb2 d1R Na3 d3 Kc3 d2 Bf2 Rb4 Nc5 Rgf4 Be4 Rdb1 Bd3 d1N+ Kd2 Qc6 Bb5 Bb3 Ba4 Qd5+ Bd4 Nf2 Bd8 Re1 Bf6 Nfh3 Bg7 Rd1+ Kc3 Qc6 Bf2 Rd6 Qa1 Qd1 Qb2 Qdd5 Qa1 Nd4 Kd3 Bd1 Qb2 Nc2+ Qd4 Rb2 Bg1 Rb1 Bf2 Rb4 b7+
1q2B2n/rP6/RNKNnrn1/r3q1r1/Np2PR2/r1bb2PP/k5N1/7q b - - 0 1 legal: proof: d4 b5 b4 c5 f4 g5 a4 gxf4 axb5 e5 b6 exd4 b5 h5 g3 h4 Ba3 h3 Bb4 cxb4 Qd3 Bg7 Qf3 Bf8 Qg2 hxg2 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 d5+ Ke5 a5 e4 f5 b7 a4 h3 a3 b6 f3 Ne2 g1N Nd2 f2 Nf4 d3 Rb1 d4 Ng2 a2 Rb3 a1Q Be2 f1Q Bh5 f4 Nf3 d2 Rb1 d1R Rh2 d3+ Nd4 f3 Nf4 d2 Bg4 f2 Be2 Ra5 Bh5 Nh6 Rc1 Rh7 Ng2 Nf3+ Kf4 Na6 b8N Ra7 Be8 Nh4 Ke5 Bg7+ Kf4 Nc7 Ne1 Nf7 Nf5 Ba6 b7 Nh8 Ng2 Qe5+ Ke3 Ne6 Nd6 Qh1 Ra1 f1R Kd3 N4g6 Nd7+ Kc6 Nb6+ Kc5 Ra2 Ra1 Ke3 d1R Rf2 Qh5 Rf4 Rdc1 Kd3 Bc3 Ke3 R1a3 Kd3 Qd7 Ke3 Qe5 Na4+ Kc6 c5 Bd3 Nc8 Kb5 c6 Kc4 c7 Kb3 Nd6 Qe7 c8N Qd8 Ncb6 Rf2 Nh4 Rff1 Ra2 Qb8 Ng2 Rf2 Rh4 Rf6 Rf4 Rf1 Rh4 R1f5 Rf4 Rb5 Nb2 Rg5 Ra1 Kc2 Ra2 Rb3 Ra6 Kb1 N2a4 Ka2 Kf2 Bc4 Kf3 Ra3 Ke3 Bb3 Kd3 Bc2+ Kc4 Rd5 Nc5 Bb1 Kb5 Bc2 Kc6 Bd3 Nca4 Rb5 Rf3 Ra5 Rf4
Rb1n1R1R/1N3r1N/1KP3r1/1PP1p1Q1/R3P1n1/1qr2b2/3k1nb1/2n1rq2 b - - 0 1 legal: proof: d4 h5 g4 b5 a4 bxa4 g5 c5 dxc5 h4 b3 h3 g6 a3 Bb2 axb2 Bg2 hxg2 Nd2 fxg6 Nb1 g5 Qd5 g4 Qd4 Bb7 Qd1 Bc8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 Ke4 h4 e5 f4 Ke3 c4 g5 h5 a5 f5 d5 b4 g3 f6 a4 h6 g4 h7 a3 f7 d4 Rh5 a2 Nh3 g1N Qa4 g2 Nd2 b1B Nf4 g3 Qa7 d3 Nf3 d2 Rg5 d1N Qa3+ Qd3 Qb3 Nh6 Qb2 Ng4 Qc3 Nc6 Rg7 Nd8 c6 Bd6 f8R Ra7 Nh3 Bb8 Re7 Ndf2 Qa3 Qb3 c5 Be4 Rc1 a1R Nfg5 Kd2 Nf7 Bf3 e4 Ne2 Kb6 g1Q b5 g2 Nd6 Qf1 Ree8 g1R Ng5 Rf7 Rc4 Re1 Nb7 Nc1 Ra4 Rg8 h8R Rg6 Nh7 Rg3 Qa1 Bg2 Qd4+ Rd3 Qc4 Rc3 Qe6 Bd7 Qe7 Be6 Qf6 Bc4 Qe7 Be2 Qh4 Bef3 Qh5 Ne6 Rc8 Nd8 Qh4 Bd6 Rca8 Bb8 Qg5+
qq1R1r2/1Bk2q1r/2RqP2r/2P2nKp/8/RN1b1qbP/b1PR4/b5B1 b - - 0 1 legal: proof: d4 a5 g4 f5 b4 fxg4 d5 c5 d6 c4 Ba3 Na6 Bc1 Nc5 bxc5 exd6 Nc3 d5 Qd3 d4 Qf3 d3 Nd5 Qh4 Nb4 axb4 Qf6 Qg5 Qb2 Qd8 Qb3 cxb3 Kd2 d5 Ke3 Kd7 Kf4 h5 a4 g5+ Kf5 b5 f4 g3 e4 g2 a5 d2 e5 d1Q a6 d4 e6+ Kc7 h3 g4 a7 d3 Ra6 g3 Ne2 g1Q Ra1 g2 Rh2 b2 Nd4 b1B Nc6 d2 Bb2 b3 Ba3 b2 Na5 b4 Nb3 Ba2 Be2 b1R Kg6 Qgf1 f5 g1B f6 Ne7+ Kg5 Bg7 f7 Rh6 f8R Nf5+ Rf6 Bf2 Bc4 Bg3 Bd5 Qdf3 Bb2 d1Q Bc6 Ba6 Rf2 Bd3 Nd4 b3 Rd2 Rb8 Bc3 b2 a8R Rb7 Ra4 Qa8 Rf8 Rb8 Rg8 Rf8 Nb3 Q1f2 Bd4 B7e5 Re2 Qd2+ Be3 Rg1 Ra3 b1Q Be4 Rf1 Ra6 Rf7 Rd8 Rfh7 Bd5 Qdd1 Rd2 Qb2 Nc1 Qbb8 Bb7 Bh8 Ra3 Bhe5 Rb1 Ba1 Rbb3 Qde1 Bd4 Qe5 Rb6 Qd6 Rba6 Qfc6 Nb3 Qcd7 Bh1 Qf7 Bb7 Qf3 Bg1 Qe4 Rf8 Ne7 Rb6 Qfe8 Bd4 Rf4 Rba6 Qf3 Rh8 Rff7 Rb6 Nf5 Bg1 Qed7 Re8 Rf8 Rd8 Qf7 Rc6+
k1q5/n6K/2q1rr1P/2p1b2R/pqB1n1B1/PP1b4/3PNRRr/q1Rn4 b - - 0 1 legal: proof: e4 d5 exd5 b5 g4 f5 f4 g5 c4 bxc4 b3 Be6 Nc3 Bc8 Ne4 fxe4 f5 Nc6 Ba3 Nb8 Bd6 h5 Bf4 gxf4 g5 Kf7 Qf3 Ke8 Qg4 hxg4 Kf2 Kd7 h4 e5 g6 a5 a3 a4 f6 f3 Kg3 f2 g7 e3 h5 c3 Kh4 e2 Kg5 e1Q Kg6 g3 f7 c2 d6 Kc6 d7 Kb7 Rb1 c1Q Bh3 f1N Be6 e4 Bg4 e3 Rh4 e2 Be6 g2 Bc4 Nc6 Rf4 Nf6 g8B Na7 Ra1 Ne4 Nh3 g1Q+ Rg4 Qd4 Rf4 Bg7 f8R Be5 Nf2 Ne3 Rh4 Nd1 Bce6 Qc6 Nd3 Qb4 Nc1 Qh1 Rb1 e1R Rf2 Rf1 Rg2 Rf6+ Kg7 Rb8 Bg4 Ka8 Ne2 Ba6 Rc1 Rb6 Bc4 Qc8 d8R Qg1 Rd5 Qd4 Rd8 Qa1 Rf8 Rhh6 Kg8 Re6 Rh1 Rhf6 Kh7 Rb8 Bd5 Bd3 Bc4 Rb6 Rh4 Rf2 h6 Ra6 Rg3 Rh2 Rh5 Qcb5 Kg8 c5 Rg5 Rg6+ Kh7 Rae6 Rg2 Qc6 Rff2 Rgf6 Rh5
b4nrq/1B6/nK3nrP/Rp4bq/PpkP1b2/4nB2/QqR4P/1B4B1 b - - 0 1 illegal: No possible last move
1qr2r2/P1B5/1N1p3R/NbNqr3/1b1kn1bP/1Ppr3N/2K1P3/Rn2q3 b - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 e5 c4 a5 f4 exf4 Bh3 c5 Be6 cxd4 c5 a4 Bc4 bxc4 b3 a3 Qd2 Nf6 Qc3 Ng8 Qb2 axb2 Kd1 Ke7 h4 Ke6 a4 Ke5 h6 f5 c6 g5 a5 d3 h7 d2 c7 g4 a6 g3 a7 g2 Nc3 b1B Ra4 f3 Na2 f4 Rb4 f2 Rh2 c3 Ra4 f3 Rc4 Bd3 Ra4 Nc6 Rd4 Nb4 Bb2 Nc2 Rf4 Na3 Nh3 Nf6 Ba1 Ne4 Rh1 Bb5 Rf6 Nb1 Ng1 f1R+ Kc2 d1R Rh6 f2 Nb4 Kd4 Na6 Bb4 Nc5 Rd3 Bb2 Re8 h8N Re5 Nh3 g1Q Bc1 Qgg8 Ng6 Qd5 Ne7 d6 Bg5 Bg4 c8N Qc7 Nb6 Rc8 Bf6 Qb8 Nc6+ Ke3 Na5 Kd4 Ncd7 Re1 Rg1 f1Q Bd8 Qf2 Nc5 Rf1 Bc7 Qg3 Rh1 Rff8 Rd1 Qe1 Rc1 Nbd2 Ra1 Nb1 Ra2 Ng3 Ra3 Ne4 Ra1
bBR3RK/n1q1B3/1k2b2p/3r2r1/1BbPp2r/2P1P3/nPB4Q/1r1b1n2 b - - 0 1 illegal: No proof kernel
1Kn2qqq/1R1P2pp/5rb1/1R2r1k1/P2Pr2R/1B2n3/3pb1PR/4N1Bb b - - 0 1 illegal: No proof kernel
4Bb2/RbPp1q1b/1N1R4/1P2KpN1/2bP1p2/4RPqp/2k2nb1/3r1n1R b - - 0 2 legal: proof: h4 e5 b4 a5 b5 g5 b6 gxh4 Nh3 a4 Rg1 a3 Bb2 axb2 Rh1 cxb6 Ng1 b5 Rh2 b4 Rh3 Ra6 Rh1 Ra8 a4 b5 c3 b3 Qc2 b4 Qf5 Ra5 Qf4 Rb5 axb5 exf4 g4 Ke7 d4 Kf6 Kd2 h5 Kd3 h3 Ke4 h4 c4 h2 c5 Qe7+ Kd5 Na6 e4 Bb7+ c6 Nc7+ Kc4 Nh6 Nd2 b1B Nh3 b2 Rg1 h1B Bg2 b3 Rf1 Ba2 Bf3 b1B Ng5 Bg2 Rh1 Nd5 c7 h3 Be2 Rg8 e5+ Kg6 e6 b2+ Nb3 Qe8 e7 Ne3+ Kc5 f6 Kd6 Qf7 Nd2 Bc4 Ra7 Nf1 Bd1 B1e4 Bb3 b1Q f3 Qe1 Ba2 Qg3 Bb3 Bb1 Bc2+ Kg7 Bg6 Bf5 Bh5 Bh7 Bg6 f5 Ke5 Bd3 Nc4 Be2 Nb6 Bc4 Kd6 Kf6 Bh5 Qg7 Be8 Qf7 Ne4+ Kg6 g5 Ng4 Ra8 Nf2 Ke5 Kh5 Ra5 Rg6 Ra7 Rc6 g6 Kh4 g7 Rg6 Na4 Ra6 Nb6 Ra1 g8R Rd1 Rg4+ Kh5 Nc3 Ne4 Rg6 Qg4 Rf6 Kh4 Rd6 Qfg8 Bg6 Kg3 e8R Kf2 Ree6 Ke1 Be8 Nf2 Kf6+ Kd2 Ne4+ Kc2 Ng5 Qg3 Re3 Qf7+ Ke5
KN4R1/p7/P1r1k3/n1Bp1R2/R3prR1/2P1rbbp/1NPPb2r/1n5n b - - 0 2 legal: proof: e4 f5 a4 fxe4 h4 b5 a5 g5 Qe2 gxh4 Nc3 c6 Qc4 Qc7 Qa4 bxa4 Bb5 cxb5 Nb1 Qc3 bxc3 Bg7 Kd1 Bh6 Ke1 Bf8 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kd5 a3 f4 b4 g4 a2 f5 b3 a6 h3 g5 h4 f6 b2 Ne2 e3 Ng3 e2 Rh2 e1R Rg2 h2 Rg1 h1B+ Ne4 Bf3 Rg3 Nc6 Rh3 Re3 Rg3 Nge7+ Kd6 Nf5+ Kc7 d5 g6+ Ke6 f7 Na5 Na3 b1N Nf6 e4 Rg4 Ng3 g7 Nh1 g8R h3 Nd7 Rh4 Nc4 Bd6+ Kd8 Bh2 f8R Bg3 Nb8 Bd7 Nb2 Bb5 Kc8 Bbe2 R4g7 Rg4 Rf5 Rf4 Rg4 Nb7 Kc7 Na5 Nc6 Rd8 Nb8 Rd6 Kc8 Nc4 Kb7 Rc6 Ka8 Na5 Nc4 Rd6 Ba3 Rc6 Bd6 Na3 Rd1 a1R Bc5 Rc1 Re1 Nb1 Rg1 Rf1 Nb2 Rf2 Re1 Rh2 Rf1 Na3 Ra1 Nb1 Ra4
br5b/1qpRP1pp/3bpN1N/2Nn3P/1k3n1n/4PN2/2P2p1B/K5Rn b - - 1 3 illegal: Other
r1q5/3rPNnP/2kb3n/3r2q1/b2p1B2/R2P1Np1/N1n1RrP1/rN1K2n1 b - - 0 1 illegal: No proof kernel
7q/r3Rnpn/b1P2p1Q/2bN1R1P/N1b1pPrb/5r2/2NbPk1K/N3q3 b - - 0 1 legal: proof: c4 a5 g4 c5 b4 cxb4 g5 d5 g6 a4 c5 a3 Bb2 axb2 Bg2 hxg6 Be4 g5 Bd3 g4 Bc4 dxc4 Kf1 Kd7 Kg2 Kc6 h4 Kd5 f4 Kd4 a4 e5 c6 b5 d3 Ke3 a5 g3 d4 f6 a6 c3 a7 c2 d5 c1B d6 b3 d7 e4 Ra2 b4 Rh2 Bc5 Qe1 Bd2 Ra6 Nh6 Rb6 Ba6 Rh1 Nf7 Na3 b1R Nb5 b2 Nc7 b3 Kh3 g2 Nf3 g1B Nd4 Bf2 Rb7 Rh6 Rh2 Rg6 Qh1 Qh8 d8N Rg4 N8e6 Rf1 Rg2 b1B Kh2 b2 Nb3 Nd7 Ned4 Bc4 Na1 Bbd3 Rg1 Bfe1 Ndc2+ Kf2 Nd5 Nf8 Re7 b1Q Rg3 Nh7 Rh3 Rd8 a8N Rd7 Nab6 Ra7 Na4 Ba6 Rg3 Bdc4 Rd3 Rfg1 Rb3 R1g3 Rbb7 Rf3 Re5 Bd3 Rbe7 Bdc4 Rf5 Rg1 h5 Kf1 Na3 Bh4 Qg2+ Ke1 Qg6 Kf2 Qh6 Rg4 N3c2 Qf1 Re8 Qe1 Re7
2B1n3/K1bN4/Pp3q1k/n1B1P3/Np1r4/pP1B3r/PB2rqq1/1q1Rn2b b - - 0 1 illegal: Other
5n2/N1KpQ3/1p3p2/2P1rb1N/1k1bn1rN/BP3P2/1bb1P1B1/N2q1nnr b - - 0 1 illegal: No possible last move
3N1Bn1/bpK1b2N/p2rPk1p/rP1b2p1/n1P1B1P1/2q5/N7/3QrnbN b - - 0 1 illegal: No possible last move
k4n1K/p1n1pb1B/1B2PB1q/5p1P/1Q4r1/B1p2r2/P1nP1p1b/1r1Nn1N1 b - - 0 1 illegal: No proof kernel
3QnK1k/3q1PPb/1B3bb1/1prbQQ2/1P1n4/3q1B1B/1Pr5/1nnR2n1 b - - 0 1 illegal: No possible last move, all moves rejected
KB3N2/2bn1P2/Bk4QB/pqP2P1q/3rr2B/2q5/1r1P2rr/1B2b2n b - - 0 1 illegal: No possible last move
2k2rBB/1q2rpPp/3bpP1P/Bn6/1q1B1R1B/8/b1Q1PKnr/3r2nq b - - 0 1 illegal: Other
1B3r1R/2q1B2b/1pnBp1Pp/q6B/rr2kbnP/1P1nPBQK/q7/1n6 b - - 0 1 legal: proof: c4 d5 b3 dxc4 Nc3 a5 Rb1 a4 Rb2 a3 Nb5 axb2 a4 Be6 Nc3 Bc8 e3 f5 Qf3 f4 Kd1 Bh3 Kc2 Bc8 Qd1 f3 Nce2 fxe2 f4 g5 f5 Ra7 Nh3 Qd6 Kc3 Qd5 Nf4 Qf3 Kd4 gxf4 Ke5 Qg4 Ke4 Qg7 Kf3 Qd4 Kf2 Qd8 Kg1 Ra6 Kf2 Ra8 h4 Kf7 d4 Kf6 g4 e1N d5 Ke5 a5 b1N f6 c5 d6 f3 Kg3 f2 d7 h6 a6 c3 f7 c4 a7 c2 g5 c3 Rh3 Qa5 d8B b6 Bc4 f1Q Be6 Nf6 Bb2 c1R Bc7+ Ke4 Qd8 c2 Bce5 Nc6 Bd6 Qe2 Qc7 Ng4 Bbe5 Nd3 Qb8 Bg7 f8B Bb7 Bf7 e6 Bfe7 Rf8 Bf4 Be5 Bh5 Rd1 Rh2 c1Q Kh3 Qea2 Rc2 Ba6 Bh2 Bf4 Rc5 Qcc2 Rf5 Qcc3 Rf7 Rc1 Rh7 Qg7 Qc7 Rc4 Rh8 Rb4 Bg3 Rab8 a8B Bb5 Bb7 Ra8 Qb8 Bc4 Bf6 Qc7 Bfe7 Bd5 Bh2 Kf3 Bg3 Be4 Bh2 Bh7 g6 Ke4 Bg3 Qc5 Bh2 Raa4 Ba8 Kf5 Bg3 Qa5 Bh2 Nce5 Bf3 Nc6 Qd8 Qb8 Bc7 Be5 Qd6 Qba7 Bb8 Qc7 Qd4 Bg3 Qc3 Be5 Qe1 Bd6 Bf4 Be5 Qg3 Bd6 Bfg5 Be5 Bc5 Bf4 Bge7 Ke5 Bcd6+ Kf5 Bd1 Ke4 Bf3+
2Qn2B1/R2Q1bbR/5kq1/Q3p1P1/2P2r2/1n2P2q/1Kb1Pq1r/n1rQ2n1 b - - 0 1 illegal: No possible last move, all moves rejected
K1b5/4bqn1/1rQpR3/R1P5/k1nRpn2/2rPn1Rr/1P1Q2P1/2Nr1b2 b - - 0 1 legal: proof: h4 c5 a4 b5 axb5 e5 h5 c4 d3 g6 Kd2 gxh5 Kc3 h4 Be3 Bh6 Kb4 c3 Bd2 cxd2 Kc3 Bf8 Kc4 e4 Qe1 e3 Qc1 d1B Nd2 exd2 Kd4 Qg5 Kc3 Qd8 e4 f5 e5 Nf6 Be2 Bh6 Bf3 Ba6 Be4 fxe4 Kd4 Bf8 Ke3 Bh5 Qf1 Bc8 Qc1 Bf7 Ke2 Ng8 Kf1 Bh5 Rb1 Bg4 Ra1 Bd1 c4 h5 f4 a5 Kf2 a4 Ke3 h3 Kd4 h4 Kd5 a3 b6 h2 b7 d6 c5 Kd7 f5 h3 f6 a2 f7 Qc7 Ne2 Be7 f8R Nh6 Qc3 Ra6 Nd4 Nf5 Nb3 Ng7 Nc1 Nc6 b8R Rb6 Qd4 Be2 Nb3 d1R Qf2 Na5 Nd4 Bf1 Rf6 Nc4 Qd2 Qa7 Rc1 a1N Nb3 Nc2 e6+ Kc7 Ra1 Qa2 Nc1 N2e3+ Kd4 Qa7 Ra4 Kc6 Rg6 Kb5 Rg3 Rh4 Rb4+ Ka5 Rb5+ Ka4 Ra8 Bd8 e7 Rh8 e8Q Be7 Qc6 Rh5 Rg1 h1N Rb8 Nf2 Rh1 h2 Rb7 Nef5+ Kd5 Nh3 Rb8 Be2 Rf1 h1R Rf4 Rhe1 Rh4 Rh7 Rh6 Bf1 Re6 Re2 Qh6 Rc2 Qd2 Rc3 Rb7 Bg5 Rb8 Qf7 Rb4+ Ka5 Rb7 Be7 Rb8 Ne5 Rd4 Nc4 Rb7 Ra6 Rb5+ Ka4 Qb6 Ne3+ Kc6 Rh4 Kc7 Nf4 Kb8 Rh5 Qc6 Rb6+ Ka8 Rh3 Ra5+
r3bbBr/Q2nq1p1/b3Pq1p/1pqPB1Pn/k7/rN1P4/3B3K/3BQ3 b - - 0 1 illegal: No proof kernel
2k1Q2r/PRpq2P1/2br4/B1Q1Rp2/1p2q2r/n3b1n1/P1PR4/R1Kb3n b - - 0 1 legal: proof: d4 a5 g4 f5 f4 e5 b4 h5 e4 Ne7 g5 Ng8 Nc3 exd4 e5 g6 Ne4 Ne7 Be2 Ng8 Bg4 hxg4 bxa5 Rh6 Ne2 Rh3 N2g3 fxe4 f5 Rh7 f6 Rh8 Nf5 gxf5 Kd2 d5 h4 Kd7 h5 b5 a6 b4 h6 d3 h7 g3 a7 e3+ Ke1 e2 Kd2 d4 g6 g2 g7 g1N f7 Nf6 Rb1 Nh5 Ra1 Nh3 Rf1 Nc6 Qe1 Bb7 e6+ Kc8 e7 Qd7 Qg3 Nf2 Qf3 Na5 Bb2 Ng3 Rh1 Nc4+ Kc1 e1Q+ Qd1 Bc6 Rh2 Nfh1 Rd2 Qe4 Qe1 Na3 e8R+ Kb7 Rb1 Bc5 f8Q Rd8 Ra1 Kc8 Re5 Re8 Qd6 Re6 Rf2 Rh6 Rd2 Rh4 Qd5 Be7 Bc3 Bg5 Qc5 Be3 Qe2 Bd5 Qh5 Bc6 Qe8+ Kb7 Qc4 Bd5 Qg6 Rd8 h8R Bc6 Qge6 Bb5 Rh6 Kc8 Qcd5 Rh8 Qe8+ Qd8 Rb6 Bc6 Qef7 Qd7 Rb7 Bf2 Rd1 d2+ Kb2 d3 Bd4 Be3 Bb6 Qg2 Ba5 Qe4 Rdb1 d1R Qc5 Rd2 Re1 Rd1 Re2 d2 Qh5 Rg1 Rf2 Rg2 Qf7 d1B Re2 Rgh2 Qfe7 R4h6 Rd2 R2h4 Kc1 Rd6 Qe8+
Q3nn2/pk2Bn2/rb3qb1/1Rn1R1P1/q5r1/2P1Kp1Q/Pq2pRP1/6R1 b - - 0 1 legal: proof: b4 d5 h4 g5 hxg5 c5 e3 cxb4 c3 d4 Bd3 Bd7 Be4 Bc8 Bc2 d3 f4 dxc2 f5 e5 Na3 Bd6 Nc4 Bd7 Nb2 Bc8 Nd3 Bf8 e4 f6 Nf4 Ne7 Nf3 exf4 e5 Ng8 e6 Ke7 Ne5 fxe5 Qf3 Ke8 Qg4 Qb6 Qd1 Qd8 Ke2 h5 d4 b5 d5 h4 d6 b3 e7 Kd7 e8R Kc6 f6 b4 d7 b2 f7 b1N Qd4 h3 Qc4+ Kb7 Rf1 e4 Be3 c1N+ Kf2 f3 Rd1 b3 Rd6 b2 Bd4 h2 Bg7 h1Q Qc5 e3+ Kg3 e2 Kf2 Na3 Rd2 b1Q Qa5 Qd1 Qf5 Qb2 Rc2 Rh4 Qh3 Nb3 Qe6 Nb5 Qd6 Nc7 Bf6 Nh6 Qd2 Rg4 Qc1 Nc5 Re5 Ne8 Ke3 Qdb6 d8R Nbd7 Be7 Rb8 Rd2 Qf6 Rdd5 Bg7 f8Q Qa4 Qh1 Nf7 Rf1 Bh8 Qg8 Nf8 Qh3 Bf5 Rf2 Bg6 Rd1 Rc8 Rg1 Rc6 Rd4 Ra6 Rb4+ Qb6 Rb5 Bf6 Bd6 Bd8 Be7 Bc7 Ra5 Qd6 Rb5+ Bb6 Qgh8 Qe6 Qf6 Qf5 Qd6 Qe6 Qd8 Qf6 Qa8+
Q1NQ1Q2/3nnP2/3nkb2/2p3p1/r1P1rN2/3rq1PQ/2Ppp2K/b2bR3 b - - 0 2 illegal: No possible last move
1rR3B1/6p1/K2B1p2/1B2b1kr/P3r1PQ/p1Pb1n1B/q2pnq1P/n1Q5 b - - 0 1 legal: proof: a4 c5 d4 cxd4 g4 h5 Nd2 b5 Ne4 h4 Ng3 hxg3 Bh3 b4 Bg2 Qa5 Bf1 Qd8 f4 e5 fxe5 a5 Ra3 Qb6 Nh3 Qd8 Nf4 Qc7 Nd3 bxa3 b4 Qb6 b5 Qd8 Nb4 axb4 Kd2 Ke7 Kd3 d5 e4 b3 b6 g2 e6 Kf6 c3 g1N e7 b2 e8B b1Q+ Qc2 Ne7 b7 Nbc6 b8Q Na5 Bb2 Nf3 e5+ Kg5 e6 f6 Qc7 Qa2 Be2 Nb3 Qd6 Ng6 e7 Rb8 Qc7 Rh5 Bb5 Ba6 e8B Na1 Qg3 Qb6 Rd1 Bd6 Bf7 Be5 Bf1 Qc5 Bh3 Qa7 Bg8 Qc5 Ke2 d3+ Kf1 d2 Ke2 d4 Kd3 Qa7 Bc1 Qb6 Re1 Qc5 Re3 d1R+ Bd2 Re1 Qc1 Bf4 Re8 Re4 Rc8 Qa7 Bb3 Qb6 Kc4 d3+ Kd5 Qe3 Kc6 Be5 Bg8 Nf4 Be1 d2 Bf2 Qd3 Bc5 Qf1 Bd6 Ne2 Kc5 Ra8 Kb6 Rb8+ Ka5 Qf2 Bc7 Bb7 Bd6 Bd5 Ka6 Bc4 Qg2 Bd3 Qgg1 Rh6 Qg3 Rh5 Qh4+
n3bnnK/2k1r1r1/4p3/1b3B1b/q1qPRP2/2rPPP2/QN6/1q1q1N1R b - - 0 1 illegal: Other
2k2B2/q1qn1n2/2p2B2/qbQ1PP2/2P3R1/n1Pnr2r/K3nPq1/1N1N2r1 b - - 0 1 illegal: Other
1b3q1B/q1n2rq1/4P1n1/1Pn2bq1/N1KQbpP1/1PP1R1R1/1p1k1n2/6N1 b - - 0 1 illegal: No proof kernel
3r2Rk/4B3/KPq1bbBr/1QP2nn1/p1N2qp1/3Pbn2/1P1P2p1/5bN1 b - - 0 1 illegal: Other
2q1NK2/nP1Pn2Q/3p3r/4R1pn/Pn1qp1q1/NP1Pn3/4kBb1/r4B2 b - - 0 1 illegal: Other
2R3b1/Pk1brp2/PP3bqn/4B1qQ/Pn6/K2B1bpR/P5pN/3q2n1 b - - 0 1 illegal: Other
1kq2QR1/1BpBr1n1/Pb5P/5pNP/1pR4K/3bP2n/1P1b1p2/2b3nr b - - 0 1 illegal: No proof kernel
1r1bBQ1R/3pN1PP/2qppp1r/2n5/k1Pp1N1n/R3r3/1P2PK2/6rb b - - 0 1 illegal: No proof kernel
Rkb2B1r/b1r1prn1/r1Pq3N/7r/3bP2n/1q1BPb2/P1N1P3/1Qn3K1 b - - 0 1 illegal: Other
4nq2/n1pNrbq1/3qRP1r/2P3b1/B3P2N/1PPp3n/1Qq2R1q/K3k2r b - - 0 1 illegal: Other
K1N2Qk1/Pp4P1/3PP2n/R1bn4/BPqb2qq/r2p2r1/1Bb3qn/1r3R2 b - - 0 1 illegal: No proof kernel
7q/1brqP1Rr/1Nr1P2b/QKn2n1N/1PPq4/rp4q1/1PRkpr1B/8 b - - 0 1 illegal: Other
1R1K1b2/1rP3r1/1qr1r1B1/1k2B2b/1p1p4/bq1n1Q1b/1PPPPNb1/2n2N2 b - - 0 2 illegal: Other
brQ2q2/2k3nK/5r2/pP3rNN/1bPP1pP1/qn2rB2/pq3Pb1/1R2B3 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 bxa4 e5 gxh4 b5 d6 Ra2 dxe5 Rb2 e4 Rb4 cxb4 Ke2 Kd7 Ke3 a5 Kf4 e5+ Kf5 h5 g4 a3 d4 b3 c4 b2 Bg5 e3 Be7 e4 Kg5 f5 Kg6 a2 Be2 h3 Na3 b1Q Bc5 h4 Qc2 h2 Bf1 f4 Bd3 h3 Qc3 e2 Qe1 e3 Bc2 Kc7 Bf5 Rh6+ Kf7 Bb7 Bb4 Ne7 Qc1 e1Q Nf3 e2 Qd2 Qb2 Ng5 Qec1 Be4 e1R Bb1 Re3 Be4 Nd7 Nb1 Rb8 Qc2 Ba8 Nf3 Nf5 Kg8 Rf6 Ne1 Ng7 Nd2 Nc5 Bf3 Nb3 Ne4 Qd6 Rf1 h1B Kh7 h2 Ng3 Bg2 Nh5 h1R Qf5 Qd8 Bc3 Bb4 Rg1 Qf8 Qc8+ Kd6 Be4 Qa3 Nf3 Qcb2 Ng5 Rhh3 Bb7 Re5 Ra1 Ref5 Be1 Rc3 Bf3 Re3 Qa6+ Kd7 Rb1 Kc7 Qc8+
1n2nb1K/b1Q2rP1/k1R4B/pN1n3b/np2P1n1/1PPqN3/n1P3p1/5rR1 b - - 0 1 illegal: Other
1q3qr1/4RqR1/3pp1pb/q2q3B/4r1P1/P1n3Q1/2PPP1nB/qbK2Nk1 b - - 2 3 illegal: No possible last move
1nrr1BNB/p1pbQr1P/q1r5/4P2r/NR2prkn/P7/2Pq1P2/4b1K1 b - - 0 2 illegal: No proof kernel
5nN1/K1b4P/2P2pp1/3r1BbN/1Pk1np1b/n3BP1P/4Qr1R/1br2r1q b - - 0 1 illegal: Other
N2n2bN/1pq5/Pb1Bppp1/P4P2/1RP1nnk1/1rP4r/K1b4R/Qn5q b - - 0 1 illegal: Other
R5KN/nbr5/2n1nN2/1q1bpnP1/1PPq1Pp1/b5PB/4b3/k1Bq3R b - - 0 1 legal: proof: b4 a5 e4 b5 h4 g5 a4 bxa4 d4 f5 d5 fxe4 d6 g4 Bc4 cxd6 Be2 d5 Bf1 d4 Qf3 Ra6 Qh3 Rg6 Qb3 Rg5 hxg5 axb3 Kd2 Kf7 f4 Ke6 c3 Kd5 g3 h5 Ra4 d3 Ke3 Kc4 Ra1 d5 Ba3 a4 Rh3 d4+ Kd2 b2 Rh4 Kb3 c4 e3+ Ke1 d2+ Ke2 d1B+ Kd3 e2 Ke4 e1Q+ Ne2 d3 Ke5 d2 Bh3 Nh6 Bg2 Nc6+ Ke4 Nf5 Nc3 b1N Bb2 a3 Rh2 a2 Bh1 h4 Nb5 h3 Bg7 Rh7 Bg2 Na3 Nc3 Kb2 Rh1 h2 Bf6 Bg7 Rf1 h1B Bd4 Bb7 Be5 Nb5 Bd4 Nba7 Be3 e6 Ng1 Be2 Nf3 d1Q Bd2 Bd4 Bh3 Rc7 Nd5 e5 Rg1 Qb8 Rf1 Qf2 Nf6 Bc3 Kd5 Qd4+ Ke6 Bg2 Rc1 a1N Rh1 Nb3 Nh4 Ka2 Rc2+ Bb2 Bc1 Ka1 Ng6 Ba3 Nh8 Be4 Nd7 Bg2 Kf7 Nc5 Rb2 Ne6 Rd2 Bc8 Kg8 Qb5 Nf6 Bb7 Rd3 Q4g1 Rd6 Qgd4 Rd8 Bd5 Ra8
8/Knq1Pb1b/1r2n1RP/1p1Nn1p1/1N3nP1/Pr1k2b1/1R2n1Pr/q5BB b - - 0 1 illegal: Other
b2qk1R1/KB1q1q2/1p2pBq1/b1r3n1/PqPPP3/4Rr2/1P1N2n1/1N1r2b1 b - - 1 2 illegal: No proof kernel
Qr1q3B/2bB4/1N3PpK/2B1r3/2P4P/nq3PRb/pP2q1kq/rq3n2 b - - 0 1 illegal: No possible last move, all moves rejected
4Kn2/5Pq1/rN1QB1b1/4b1Pk/rn1p1bqp/1NPqN2P/P1r3r1/7R b - - 0 1 legal: proof: d4 a5 b4 axb4 Nd2 f5 Rb1 c5 e4 d5 exd5 cxd4 f4 g6 Rb3 g5 Re3 b3 Re4 fxe4 f5 Ra4 Ba3 Ra6 Bd6 Ra8 Bf4 gxf4 Kf2 Kf7 g4 e5 d6 b5 f6 Kg6 h3 h5 f7 e3+ Kf3 h4 Ke4 f3 Kd5 e2 g5 e1B d7 f2 Ke6 e4 c3 b4 Ndf3 b2 Qe2 b1Q Qb2 b3 Bd3 f1R Bc2 Qd1 Ne5+ Kh5 Nc4 e3 Ne5 e2 Bd3 Ra4 Ngf3 Rf2 Bh7 Rg2 Rg1 Qf6+ Kd5 Bd2 d8N e1R Ng6 Bd6 Ne6 Qg7 Ne7 B2f4 Be4 Ree2 Bd3 Nc6 Nc7 Rh6 Bf5 Rc2 Be6 Bde5 Nd2 Qg4 Qa3 b2 Rh1 b1Q Qd6 Nb4+ Kc5 Qf1 Na8 Nf6 Nb3 Nh7 Nd5 Qd3 Ne3 Nf8 Kb6 Bb7 Kc7 Be4 Kd8 Rf6 Nb6 Bg6 Bf5 Qde2 Ke8 Qd3 Qb8 Rc6 Be6 Rd6 Nbd5 Rb6 Qd6 Rba6 Nb6
2qrR3/pB1rPb2/3RN1pP/3r2P1/qP6/b2r1Pn1/4pkr1/KQR4r b - - 0 1 legal: proof: d4 e5 a4 h5 g4 b5 Be3 bxa4 Bf4 h4 Bg3 hxg3 b4 f6 e4 Na6 Nc3 Nc5 b5 Nb3 cxb3 exd4 b4 f5 e5 Nh6 Ne4 fxe4 Qd2 Ng8 Qc1 Ne7 Qd1 Ng8 Kd2 Ke7 Kc2 Ke6 Kb2 Kd5 h4 c5 e6 d3 h5 Kd4 e7 d5 h6 g6 g5 e3 f3 c4 b6 a3+ Ka2 c3 b7 e2 b8R Ke3 Nh3 d4 Qb1 g2 Ng1 c2 Rb5 c1R Qb3 Nf6 Rb8 Nh5 Qc2 d2 Rb5 d1R Rb8 d3 Qa4 d2 Qb5 Kf2 Rb6 Be6+ Qd5 Bf7 Rb1 Bg7 Qc4 Bb2 Rb8 Ng3 Rh3 Qc8 Rh4 Rd8 Rd4 Rd5 Qd3 Rc3 Qc2 Rd3 Rc1 Re1 Qb1 d1R Rc2 Bc1 Ka1 a2 Rc7 Rd7 Rd6 Ba3 Rc3 Rd5 Rc1 R1d3 Nh3+ Ke3 Ra6 g1R Rd6 Rg2 Nf4 Kf2 Ne6 Qc5 Rbb6 Rad8 Rb8 Qc8 Ra8 Rg1 Bh3 Rg2 Bf5 Rh1 Be4 Ra5 Rd1 Qc7 Nd4 Rh8 Bb7 Bc1 Re1 Rd5 Ne6 Qc4 Rg8 Qc8 Rg7 Rhd8 Rg8 Bd2 Kb2 Bc3+ Kc1 a1Q Re8 Qa4 Rg1 Bd2+ Kb2 Be3 Qa2 Bf4 Ka1 Bc1 Re1 Ba3 Qb1 Rd1 Rg1 R1d3 Rc1
q2nB3/b3PQPb/r2pp2K/pr2nP2/8/R1pP1rP1/2kN2p1/nN4N1 b - - 0 1 illegal: No proof kernel
5q2/3r1Q1q/1Pr2p1P/K1P1bBn1/np2q1q1/1PR2p1n/4RPN1/1k1r1bR1 b - - 0 1 illegal: Other
q2k2q1/n2PPp1p/5bB1/2b4P/2PpbNK1/3n2P1/1RQr1b1Q/1qN5 b - - 0 1 legal: proof: b4 a5 f4 axb4 e4 g5 d4 gxf4 a4 b5 d5 d6 Bb2 Kd7 Be5 Ra6 Ra3 Rc6 Rd3 dxe5 Rd4 Rc5 d6 Rd5 Be2 c5 Bf1 Ke6 d7 cxd4 exd5+ Kd6 Kf2 Kc7 Kf3 b3 c4 b4 h4 e4+ Kg4 e5 h5 f3 a5 e3 a6 e2 a7 e1B a8Q f2 Qd2 e4 Nc3 e3 Nge2 b2 Na2 b1Q Rh2 b3 Qc1 b2 Nec3 e2 Kg3 Na6 Qd2 Bb7 Nb4 Qe4 Qc1 b1Q Qa7 Bc5 Qe3 Qa8 d6+ Kd8 Qd2 Ne7 Nca2 Re8 Qd3 Nc6 Qf3 Qe7 Nd5 Nab4 Kg4 Nd3 Qa3 Na7 Nf4 Be4 Qc3 Bd2 Qg3 e1B Be2 f1Q Qc2 Qg1 Nc1 Be3 Qh3 Bh4 Bf3 Bf6 g3 Qd1 Re2 Bf2 Qh2 Qd2 Nh3 Qh6 Nf4 Qhf8 Bg2 Bb7 Be4 Qg8+ Bg6 Be4 Qb2 Qef8 Qb3 Re6 Rc2 Qe7 Rb2 Re5 Qc2 Rf5 Nd5 Rf3 Nf4 Re3 Qg2 Re2 Qh2 Rd2 dxe7+
2q2r2/PN3r2/4bPq1/QN2PB2/3k1PPR/3b1b1b/2b1nn2/3QKnbn b - - 0 1 illegal: Other
k2rn1N1/1Q1Rbn2/3B1qP1/3r1nnP/2N2q1q/1PP1qb2/pP3Q2/5K1b b - - 0 1 legal: proof: g4 g5 d4 b5 f4 gxf4 g5 f3 d5 e5 d6 h5 Bh3 b4 Bg4 b3 axb3 hxg4 Ra6 cxd6 Rc6 d5 Rf6 d4 Rf4 exf4 e4 f5 h4 a5 g6 d5 h5 Kd7 c3 Kc6 e5 Kb7 e6 a4 e7 d3 e8Q g3 Bd2 a3 Rh4 g2 Qee2 a2 Qe4 Nd7 Kf2 Ngf6 Be3 d2 Ba7 Be7 Qc1 d1Q Qc4 d4 Rh2 d3 Rh4 d2 Qa4 Ne5 Qd4 Nf7 Bb6 Ra5 Qa4 Ka8 Qb5 Bb7 Qd7 Rd5 Qb5 Ne8 Qc2 Qc1 Bc7 d1B Nh3 g1N Qc4 Qe3+ Kf1 f2 Qd4 Nf3 Qdd2 N3g5 Kg2 f1Q+ Kh2 f3 Rd4 f2 Bf4 Bf3 Bd6 f4 Na3 Qc1 Qe1 f1Q Qef2 Bh1 Qcd2 f3 Nc4 Qfe1 Qg2 Qh4 Qdf2 Qcd2 Kg1 Qef4 Na5 Qde3 Nc4 Qb6 Rd3 Qbd4 Kf1 Qdf6 Qfg1 Rg8 Nf2 Rf8 Ne4 f2 Qf3 Re5 Qfg3 Qg7 Nc5 Qee4 Qf3 Nc7 Nd7 Rd8 Bb4 Ne8 Nf6 Rf5 Ng8 Qf6 Qh2 Qed4 Ke2 f1N Qd5 Ne3 Qf2 Re5 Qd7 Nf5+ Kf1 Qde3 Qc7 Ra5 Rd7 Bbf3 Bd6 Rd5 Qb7#
8/rp5r/2nqqq2/qpPpbR1r/3P4/1BQPPk2/qQ1BnPN1/3K4 b - - 0 1 illegal: Other
2K2k2/3n1rn1/2pPpBb1/p1B1qQ2/1NPpP2r/1R1p2Qq/nP4P1/4b3 b - - 0 1 illegal: No proof kernel
5n2/2K2ppP/q1P2p1n/1Q2N2P/bRB1q1kq/2Pp1pb1/2QP4/3r1R1q b - - 0 1 illegal: Other
3b1R2/3Pp2n/p1rp2Q1/1bQ3N1/PnRK4/P2Pn2p/2q1P1B1/rqbq2k1 b - - 1 3 illegal: Other
q1Bq4/1npQ1q2/Pq4P1/pn2PN2/k3qPK1/N1r1r2B/NP6/2n1b3 b - - 0 1 illegal: No proof kernel
1B3q2/1nb1N1n1/2qr4/1rBP1bPP/Kn3Bpn/1RP3Pk/p1pR2n1/8 b - - 0 1 illegal: No proof kernel
1rN2r1n/1nP2b1B/1B1r2rp/1R1P2p1/prP1r3/n1k3PR/4P3/q2B2K1 b - - 0 1 illegal: No proof kernel
Bbb3qr/P2r1n1p/2R4p/K1n4r/1Pp1Pn2/2Pq1Bb1/4R2P/1N3kBn b - - 0 1 illegal: No proof kernel
b1q2N2/2rQKRN1/1r1R3n/1nnP4/p1r5/2kpb1p1/PrP2PP1/1Nn2r2 b - - 0 1 illegal: No proof kernel
N1QR2nn/1bb1R1r1/3p1nP1/3rb1q1/1K2P2p/1PRPp3/1N2P2p/k1b3b1 b - - 0 1 illegal: Other
8/N2p2RB/nk1q1b1P/3p1p1r/bb1P1R2/pPr2PB1/1p2P1pr/nK2R3 b - - 0 1 legal: proof: a4 b5 g4 bxa4 b3 c5 g5 c4 g6 e6 Na3 c3 Nc4 hxg6 d3 g5 Nb2 cxb2 Qd2 g4 Qa5 Rh5 Qg5 Rh8 Qd5 exd5 Kd2 a5 h4 f5 c4 g5 Kc2 g3 c5 g4 f3 g2 c6 g3 c7 a3 h5 a2 Rh3 a4 Rh2 a3 Bd2 Bb4 Bf4 Ne7 Be5 Bb7 c8R Bc6 Rc7 Na6 Nh3 g1B Rb7 Ba4 Re1 a1R Nf2 Qb8 Nd1 Kd8 Bh3 g2 Bg4 Nc6 Nc3 Qd6 Bg3 Bd4 Nb5 Bf6 Na7 Rc8 d4 Rh7 Rb8 Kc7 Rh4 Rch8 Rd8 Kb6 Rg8 Rd1 Rg5 Rd3 Kb1 Rc3 Rg6 Ba5 Rg7 Ncb4 Bh3 Nc2 Rf4 Na1 Bg4 Bb4 Re7 Rg7 Rf7 Rg5 Rg7 Re8 h6 Rh5 Rf7 Rh2 Bh5 Rg8 Bg6 Rg7 Bh7 Rg5 Re7 Rgh5 Rg7
K6N/1rq2Q2/2Pp2R1/2Q1PnPn/n1p3rn/3Pnkrp/R2b3P/1rN4b b - - 0 1 illegal: No proof kernel
B1r4Q/2n1P1n1/Ppn1P3/q1Q5/rN5n/qPpK2R1/Qq3P2/3n1kq1 b - - 0 1 legal: proof: h4 g5 b3 gxh4 Rh2 a5 Rh1 a4 Nc3 a3 Rb1 b6 Rb2 axb2 a4 Ra5 Nb1 Rh5 c4 Rb5 c5 Ra5 c6 Ra8 e4 f5 d4 Ra5 e5 Rb5 e6 Ra5 Nd2 Bg7 Ne4 fxe4 Bf4 Bb7 cxb7 Ra8 Bd6 Be5 dxe5 exd6 Ke2 Ke7 g4 b1Q g5 h5 g6 c5 a5 d5 g7 e3 Bh3 d4 Bf1 d5 Qe1 d3+ Kf3 e2 Ke3 d2 Bg2 d1Q Qf1 e1N Nf3 c4 Rh2 d4+ Kf4 h3 Ng1 h4 Nf3 c3 Qg1 d3 Ke3 d2 Qf1 Na6 b8Q Qdc1 Qd3 d1N+ Ke2 Qbb2+ Qd2 Qd5 Rh1 h2 Ng5 h3 Nh7 Nf3 Qb7+ Nc7 Ng5 Nh4 Re1 h1N Ne4 h2 Rg1 Ng3+ Ke1 h1Q Nc5 Ngf5 Ke2 Qca1 Qb8 Qaa3 Na6 Qh2 Rh1 Qg1 Nb4 Qc5 Qb7 Rc8 a6 Qca5 Rh2 Rh6 Qf3 Rg6 Rh3 Rg4 Qd5 Rc4 Nd3 Ra4 Be4 Nf6 g8Q Ng7 Qc4 Nfd5 Rg3 Nb4 Ba8 Nc6 Qh7 Kd8 e7+ Kd7 e6+ Kd6 Nb4+ Ke5 Qg8 Kf5 Qc5+ Ke4 Re3+ Kf4 Qh8 Kg4 Kd3 Kf4 Re1+ Kf3 Re3+ Kg2 Rg3+ Kf1 Qc2 Nd8 Qb1 Nc6 Qa2
3Q3K/1PPQb3/r2q3P/3Q1p1p/qppp1Rp1/1b2N3/4k1PP/2nBb3 b - - 1 2 legal: proof: b4 b5 a4 c5 c4 e5 Ba3 bxa4 b5 d6 Bb4 Bg4 Ra3 Bf5 Rc3 cxb4 c5 Bd7 c6 Bc8 Rc5 dxc5 d4 h5 d5 a5 Na3 Rh6 Nc2 Nd7 Nd4 Ndf6 f3 Ne4 f4 Ng5 fxg5 exd4 gxh6 Bh3 Qd3 Ke7 Qh7 Nf6 Kf2 Qc7 Qc2 Kd8 Qb2 Bd6 Ke1 Ke7 Qa1 Rh8 Kd1 Qd8 Qb2 Ng8 Qc2 Bc8 Ke1 Ke8 Qd1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 g5 e3 g4 b6 f5+ Kf4 a3 b7 a2 c7 a1B e4 a4 Qf3 a3 Bd3 a2 Bc2 Be7 Nh3 Bc3 Nf2 a1Q Rf1 Qa4 Nd1 Nf6 Kg5 Ke5 Kg6 Be1 Kg7 Be6 d6 Nd7 Ne3 Bb3 Rf2 c4 Rf1 Nf6 d7 Nd5 Rf2 Nc3 Rf1 Qda8 d8Q Q8a6 Qd7 Rg8+ Kh7 Rg7+ Kh8 Qd6 Qd8 Na2 Qd7 Kf6 e5+ Kg5 e6 Rg6 Qd5 Nc1 Rf3 Bd8 e7 Re6 e8Q Be7 Rg3 Kf4 Qed8 Re5 Qf7 Ra5 Rh3 Ra6 Rf3+ Ke5 Bd1 Ke4 Rf4+ Kd3 Qd5 Kd2 Bc2 Ke2 Bd1+
3bqb2/4PnP1/2nr3R/3Q1qNK/3nnPR1/1b1P1QpP/2pk4/2R2b2 b - - 0 1 legal: proof: d4 b5 a4 d5 axb5 e5 e3 exd4 Ne2 a5 Nf4 d3 Nh3 d4 Ng1 d2+ Ke2 d3+ Kf3 Ra6 Qe1 d1B+ Kg3 Rd6 Qc3 d2 Qb3 Rd3 cxd3 g5 e4 g4 Kf4 f6 Ke3 Bg7 e5 Qe7 Kd4 Bb7 e6 Bf8 Kc3 Na6 Qd5 Qd7 b4 Nb8 Qb3 Bc8 Bb2 Qd6 Kc4 Qe7 Be5 fxe5 Kc3 Qd8 f4 h5 Be2 Be7 Bf3 Be2 Kc2 Bf1 Kd1 Bf8 g3 Bg2 Ke2 Bf1+ Kf2 Be2 Nc3 Bd1 Kf1 Bh6 Ne4 Bg7 Nf2 gxf3 g4 Bh6 g5 Bf8 Ng4 hxg4 Kf2 Ke7 Kg3 Kd6 b6 c5 b5 a4 b7 c4 b6 Kd5 g6 Kd4 g7 Ke3 e7 e4 Qb2 c3 Qb3 f2 Rc1 f1Q Qc4 a3 Qb4 a2 Rb1 a1N Qb2 Bb3 Qa2 d1N Rb2 c2 Nh3 Qe8 Rb1 Nc3 Rc1 Nc6 b8Q Rh6 b7 Rd6 Kh4 g3 Qa5 Nh6 Qba8 Nf7 b8R Kd2 Qd5 e3 Qd4 e2 Qda4 e1B Qd4 Ne4 Ng5 Bh3 Rb6 Qe2 Qb7 Bf1 Qd5 Qe3 Kh5 Qc5 Qc4 Qf5 Qd5 Nf2 Qf3 Ne4 Ra6 Bf2 Qb5 Bb6 Qd5 Bd8 Rb6 Rd7 Ra6 Nb4 Rg6 Nc6 h3 Rd6 Rg1 Bg2 Rge1 Bf1 Re3 Bc4 Rh6 Nb3 Ree1 Nbd4 Re3 Nf2 Ree6 Ne4 Ref6 Bb3 Rfg6 Qfd7 Nh7 Qc8 Rg4 Qf5+ Ng5
4Q2K/3p2P1/5P2/1rknRrP1/1pn1b2N/1p1Ppr1P/r4Q1p/2QR1b2 b - - 0 1 legal: proof: b4 a5 f4 axb4 e3 g5 Ba6 c5 Bd3 g4 Bf1 c4 Bb2 c3 e4 cxb2 e5 f5 Qc1 Qb6 Qd1 Qf6 exf6 Bh6 Ne2 Bg7 Ng1 Bf8 h3 g3 Nc3 Ra7 Nd5 Ra6 Ne3 Bh6 Ng4 Bg5 fxg5 Ra8 g6 h5 Nh2 gxh2 g4 Kf8 g5 Ke8 Be2 Nh6 Bf3 Ng8 Bg4 hxg4 Ke2 b3 Ke3 b1B Kf4 e5+ Kg3 b5 a4 e4 Kf4 e3 Ke5 b4 c4 f4 c5 f3 c6 g3 c7 f2 g7 f1R a5 g2 a6 Be4 a7 Ne7 Ra2 Nbc6+ Kd6 Rf5 Qf3 Ne5 Ra5 Kf7 Qf2 Ba6 Nf3 Rhb8 Rd1 Bf1 c8Q g1R d3 Rg3 Nh4 Rgf3 Qc1 Rb7 Rc5 Rb5 Rd5 Rd8 a8Q Nc4+ Kc7 Rdb8 Re5 R8b6 Kd8 Ra6 Rd5 Ke6 Ke8 Raa5 Kf8 Ra2 Re5+ Kd6 Qe8 Nd5 Kg8 Kc5 Kh8
2b1K2B/pq1R2b1/1B2P1p1/1qn4b/P1p2kP1/rPbpn1Q1/4QBP1/7r b - - 1 2 illegal: No proof kernel
1r3r2/4B3/nPb1QpN1/b4QpN/Qpr1PpP1/2rq1P2/1k1p1KP1/4r3 b - - 0 1 legal: proof: b4 a6 b5 Nc6 h3 Nh6 b6 Ng8 e3 Ne5 Bb5 Ng4 hxg4 axb5 a4 c5 d4 cxd4 a5 Ra7 a6 Ra8 a7 f5 Ra6 bxa6 Rh6 Nf6 Rg6 Ng8 Rf6 exf6 c4 Ke7 e4 Kd6 c5+ Ke5 c6 g5 c7 h5 f3 d5 Kf2 f4 Qc2 a5 Bb2 h4 Nd2 h3 Ke1 a4 Qc4 h2 Kf1 h1R Bc1 a3 Qb3 a2 Qd1 a1R Qe1 d3 Qe2 Kd4 Nb1 d2 Nc3 d1R+ Kf2 Re1 Qc2 Bb7 c8Q Bc6 Qf5 Ra4 Nb1 Bb4 Qd7 Ba5 Qf7 Rb8 a8Q Rc4 Qb3 b4 Qe6 Ne7 Nc3 Rf8 Be3+ Kd3 Qa6 d4 Qb5 Nd5 Nge2 Nc7 Q3a4 Na6 Ng3 Rc1 Nd5 Rhe1 Qc5 R1c3 Ne7 Qd6 Nh5 Qd5 Qa1 Kc2 Ng6 d3 Qa4+ Kb2 Qcb5 d2 Bc5 Qd7 Be7 Qd3 Qbf5
2nK2Q1/2PbB3/n1k1p3/Np3q1p/rBB2P1b/1P5P/1qr1P1b1/1Q1n2rr b - - 0 1 legal: proof: b3 a5 Na3 a4 Nc4 a3 Nb2 Ra4 Rb1 Ra7 Ra1 Ra8 Nf3 axb2 a4 b1B Ra2 c5 Ng1 c4 Bb2 c3 Ba3 Qb6 Bc1 Qd8 g4 f5 h3 d5 Rb2 cxb2 c4 Kd7 c5 Ke8 Rh2 Be4 Rg2 Bb1 Rg3 fxg4 Rc3 Qd7 Rc2 Qd8 Rc4 dxc4 f4 Kd7 Kf2 b5 Kg3 h5 Kh4 g5+ Kg3 e6 d4 c3 d5 c2 a5 Ne7 d6 Na6 Bd2 c1Q Bb4 Kc6 d7 Be4 Nf3 b1N Ne1 Bg2 Nd3 Nc3 Qe1 Qb2 Qb1 Qe8 d8B Qf7 Nf2 Qa3 Ne4 Nd1 Nd6 Bd7 Nb7 Nc8 Bf6 Qb2 Be7 Kd5 c6 Qf5 c7 Kc6 Bed6 Be7 Bdc5 Rd8 Bd6 Bf3 Bg2 Bd5 Be4 Ra7 Bd3 Bg2 Bc4 Bf6 Be7 Ra8 Kh2 g3+ Kg1 Be4 Kf1 g2+ Kg1 g4 Kh2 Ra7 Kg3 g1R+ Kh2 Rh1+ Kg3 Nc5 a6 Ra8 a7 Bg2 Ba3 Na6 Bab4 Bc3 Kh4 g3 Bg5 Be1 Bf6 Qe4 Kg5 Qd5+ Kg6 Qf5+ Kf7 Bd5 Be7 g2 Bd6 g1R Bb4 Qg4 Bfe7 Bh4 Bed6 Bg2 Be7 Rb8 a8Q Qg5 Qa7 Ra8 Qd4 Qf5+ Qf6 Be8+ Kf8 Rd2 Qf7 Qg6 Qg7 Rc2 Qg8 Bd7 Bg5 Na7+ Ke7 Nc8+ Kd8 Qf5 Bf6 Nb8 Bg5 Ra4 Bge7 Na6 Na5+
1nn5/p3rbP1/3r1Pkb/PB2q2r/pK1B4/P2q4/1PN1BrN1/1N2n2n b - - 0 2 illegal: Other
8/3nRnPR/1k2K2p/nP3n1P/1qR5/b1n2p1b/2Pp1r1P/2n1Q1BR b - - 0 1 legal: proof: a4 g5 b4 b5 e4 a5 g4 c5 e5 c4 Na3 Ra6 f4 Rh6 Bg2 Rh5 Bd5 e6 fxg5 bxa4 d4 Bb7 Nb1 Bc8 Nd2 d6 Nb3 cxb3 Be4 d5 gxh5 Qd6 Ne2 Qc7 Nf4 dxe4 d5 Qe7 d6 Qd8 Nd5 exd5 Kd2 Kd7 Ke3 Kc6 Kd4 f5 b5+ Kb6 g6 e3 g7 e2 e6 e1N Ke5 b2 d7 b1N e7 h6 e8R d4 Qf3 a3 Bd2 a4 Bb4 a2 Rg1 a3 Rg3 d3 Rg1 d2 Rg2 f4 Qd1 Qh4 d8R Nd7+ Ke6 Nd3 Kf7 Nc3 Re7 N3e5+ Ke6 Nf7 Rb1 a1N Qg4 a2 Qh3 Nb3 Rf2 a1N Qd3 Nc1 Bd6 Nab3 Qc4 Na5 Qf1 f3 Rg2 Qf4 Qe1 Qb4 Ree8 Ne7 Rg4 Nf5 Rc4 Rg8 Bf4 Bc5 Re7 Re8 Be3 Qa4 Rd4 Ba3 Bg1 Qb4 Ra1 Bb7 Rc8 Be4 Rb1 Bd3 Ra1 Bf1 Ra8 Bh3 Rb1 Rc8 Ra1 Rc5 Rh8 Rd5 Rc4+ Rd4 Rc5 Rg4 Rh7 Rg2 Rc4+ Rf2 Qe5 Ncb3 Rf1 Qc5 Qe1 Re2+ Be3 Nc1 Rh1 Rg2 Rd4 Qb4 Bg1 Rf2 Rc4
1N6/2b1Kpqn/1rNP4/b2r4/2k1P1PP/1b1N2p1/2Q1b1PR/2r1bNbn b - - 0 1 illegal: No proof kernel
2bb4/1r2Qb1P/p2qr2P/P3nkP1/1pp4N/N1br1N1B/p1Pr2N1/2K5 b - - 0 1 illegal: Other
5R1B/3b1qpB/pPn1rpn1/3n1P2/P1B3K1/3P1P1n/1rkq3B/1b1R1r2 b - - 1 2 legal: proof: c4 e5 d3 b5 g3 bxc4 Na3 d5 Qb3 h5 Nb5 e4 Qb4 e3 Nf3 Bd6 Nd2 Be5 Na3 c3 Qg4 hxg4 Nac4 Bf4 gxf4 dxc4 Bh3 exd2+ Kf1 Qh4 Kg1 Qg5 Bf1 Qd8 Kg2 Kd7 Kg3 Ke6 a4 Kd5 h4 Kd4 e4 d1B b4 c5 h5 a6 f5 c2 e5 Kc3 f3 f6 e6 Qc7+ Bf4 c1Q b5 Bd7 b6 Qd2 h6 Ne7 h7 Nd5 e7 Nc6 e8B Bc2 Kh4 g3 Bf7 g2 Bh2 g1N Bd6 Bb1 Bh2 Nh3 Ra2 Rae8 Kh5 Re6 Ra3+ Kc2 Kg4 c3 Bg6 c4 Rg1 Rhe8 h8B Re2 Rh1 R8e6 Bf4 Kb2 Rh2 c2 Bg2 c1N Rh1 c3 Be5 Qd1 Kg3 Bc8 Bf1 Nce7 Be8 Nb3 Kg4 Na5 Bh2 c2 Bg6 c1R Bh7 Ng6 Rc3 Qf7 Rc7 Rd2 Be2 Bd7 Rc8 Nc6 Rf8 Kc3 Rf1 Rb2 Rg1 Qe1 Bd1 Qd2 Bb3 Rd1 Bc4 Kc2 Rg2 Rh1 Re2 Rf1 Re1 Qf2 Rd1 Qe2 Bg3 Qd2 Bh2
qn1qr3/n1q1b1PP/5qkN/5BPn/P1P4r/1P4pN/2n1R2r/1Q3K2 b - - 0 1 legal: proof: f4 d5 g4 h5 d4 a5 e4 c5 g5 a4 Qg4 hxg4 f5 g6 fxg6 Be6 Ba6 cxd4 Bf1 d3 Bg2 d4 Bf1 Bd5 exd5 Rh6 Na3 Rh5 Nb1 Rh8 b3 b5 Bb2 b4 Nh3 a3 Ng1 axb2 a4 Nd7 Ra2 Nb8 Ra3 bxa3 c4 e5 h4 f5 g7 Kf7 h5 a2 h6 a1Q d6 d2+ Ke2 d1N d7 e4 Rh5 f4 Nh3 e3 Ng1 g3 Rh4 f3+ Ke1 d3 Bg2 f2+ Kf1 d2 Rh3 Qc7 d8Q Nf6 Na3 b1R Ke2 Nc3+ Kf3 d1Q+ Ne2 Nh5 Qd3 f1Q+ Kg4 Nb5 Rh2 Rb2 Kh3 Na7 Nf4 e2 Nc2 e1N Nd4 Qh1 Be4 Be7 Qb1 Nc2 Nf5 Qdd8 Bd3 Qhd5 Re2 Ra2 Be4 Qf6 Kg2 Qdb7 Nh3 Kg6 Kf1 Na1 Qd3 Qdd5 h7 Nd7 Kg1 Rhd8 Re3 Rh2 Qb1 Nc2 Nf2 Rac8 Bf3 Qa8 Kf1 Nb8 Bg4 Rd7 Nh6 Re8 Re2 Qd1+ Re1 Rd4 Be6 Qd3+ Re2 Rdh4 Bc8 Qdd8 Be6 Qa1 Nh3 Qf6+ Bf5+
b2B2NK/1pq1Ppp1/P5P1/nP3rP1/P1rb4/1nq1N1R1/5Q2/nqknq3 b - - 0 1 illegal: Other
1nb2k2/qP1PQ2P/qB2P1r1/N4pn1/PK4n1/2Pqbpn1/8/rN1B2n1 b - - 0 1 illegal: No possible last move, all moves rejected
b1n1N3/P1rq4/5qp1/1p1PrrNB/1k3p2/1P1Q1b2/qPPKnP2/1qB5 b - - 0 1 illegal: Other
b3R2r/Pr1N2b1/1pP2qP1/pKbRrBq1/1B1b1P2/2p5/1PPn4/2kn1r2 b - - 0 1 illegal: Other
rB3K2/R4nP1/R1r2Npr/6qn/1pp1pPbb/1PPNP3/1b4bP/1k1b4 b - - 2 3 illegal: No proof kernel
1k1n1K2/P3P3/2p2p1p/2Prr1NP/rR1P1r2/1b1q1PB1/n2q1bP1/1N4nn b - - 0 1 illegal: No possible last move
7K/qp1PP2n/3P2Bb/1Pp1r2b/1Pkpb3/1NPP3n/2qPr3/R2qq3 b - - 1 3 illegal: Other
N2NR3/b1N2r2/8/1b3brB/Q5BK/QQq1n1rb/nr6/2RqqBkR b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ba3 exf4 axb5 Bb7 b6 Ba6 b5 Bc8 Bb4 axb4 Kf2 Kd7 g4 Kd6 e4 Ke5 d6 Kd4 b7 c5 e5 h5 e6 f5 d3 c4 e7 f3 e8B c3 g5 b3 b6 c2 d7 c1Q g6 b2 g7 f4 Rh2 h3 Nd2 b1R Ra7 h4 Bg2 Rb2 Bg6 Qc3 Qa1 Bc5 Bf5 Nf6 g8B Nd5 Qa3 Ne3 Bg4 Rh5 Bf1 Rg5 Bf7 Nc6 b8Q Nb4 b7 Na2 Bfh5 Qda5 d8N Bf5 Ra6 Ra7 Qa8 Bb6 b8Q Rf7 Qbb7 Ba7 Qbb3 Qa4 Rh6 Qe8 Rh1 h2 Nh3 Qe4 Rg1 h1R Rh8 Qe6 Qc6 Qd6 Qca4+ Qdb4 Re8 Rh2+ Rg2 Rh1 Rh2 Rg1 Rf8 Rg3 Re8 Rg6 Ng5 h3 Rg2 h2 Nge6+ Ke5 Nc7+ Kd4 Rg1 h1Q Rg2 Rg5 Rh2 Rb1 Nc4 Rb2+ Be2 Qd1 Nb6 Qc6 Nba8 Qc3 Rg2 Rb1 Bf1 Rb2+ Kg1 f2+ Kh2 f3 Rg1 Rg2+ Kh3 Rg3+ Kh4 Qce1 Rh1 Qc4 Rh2 Qcb4 Bfh3 f1B Bg2 Be2 Bf1 f2 Re5 Bb6 Rc5 Ba7 Rc1 Qc4 Qa5 Qcc3 Q5a4+ Ke5 d4+ Ke4 d5+ Kd3 Bg2 f1B d6 Kd2 d7 Bb5 B2f3+ Bg2 Be2 Bh3 Bf1+ Qf2 Nc6 Ke1 d8R Qg1 Re8 Qh1 Bg2 Kf2 Nd8 Qhe1 Bf1+ Kg1 Rh1+
b1BN2bb/3qrn2/Q3Bp2/1N4RN/p3kr1R/r2RbBKb/8/Qb2Q3 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 g6 h6 Be3 f6 Bf2 Ke7 Bh4 Nc6 Bg5 hxg5 Ra4 Ne5 Ra1 Nf7 gxf7 Bb7 Qd2 Ba6 Qd1 Bc8 Kf2 Kd6 b4 Kd5 c4+ Ke5 e4 a5 h4 d5 c5 g6 h5 f3 h6 d3 b6 g4 b5 a4 h7 d2 b7 d4 b8R d3 c6 g5 c7 Nh6 b6 Be6 c8B Bg7 f8N Qd7 b7 Nf7 Nc3 Ra7 Qe1 d1B Ra3 d2 Bg2 Bc2 Nb5 d1B Nh3 Bb1 Kg3 f2 Bf3 f1B Nf4 Bh3 Nh5 Bdb3 Rh2 Bed5 Ne6 Re8 Ra8 Bh8 b8Q+ Rc7 Rg2 Re7 Qb7 Rc3 Qa6 Rc4 Rb8 Ba8 Nd8 B3a2 Rd3 Rc3 Rh2 Ra3 Na7 Bc4 Rb5+ Bcd5 Rdb3 Kd4 e5 Bc4 e6 Bcd5 Be2 Ke4 Rd3 Bc4 Rf5 Bb3 Nb5 B3a2 Kf2 g3+ Kg1 Bg2 Qd2 g4 Qb2 Ne5 Rh1 Rf7 e7 Bg7 e8B Re7 h8Q Bg8 Qh6 Bh8 Rh4 Bh3 Qa1 g2 Kf2 g1R Bd1 Rf1+ Kg3 Rf2 Qc1 Rf4 Bg6 Nf7 Be2 Nh6 Qe1 Nf7 Rg5+ Qf5 Kh2 g3+ Kg1 g2 Kh2 g1B+ Kg3 Be3 Bg4 Nh6 Bf7 Qd7 Bfe6 Nf7 Bf3+
1nQ1N3/R1N2p1r/1Q5R/1b2QqpK/n2qq3/R1n2k2/1BB2qN1/1q3B1n b - - 0 1 legal: proof: c4 a5 d4 b5 Na3 b4 Qa4 e6 Qb3 Bd6 Qd1 Ra7 Nb1 Be5 dxe5 Rb7 f4 h5 g4 hxg4 f5 exf5 b3 Rb5 cxb5 a4 Ba3 axb3 Bb2 Qe7 Bc1 Qd8 Kf2 Ke7 Kg3 Ke6 e4 c5 a4 d5 h4 g5 a5 f4+ Kg2 d4 a6 d3 b6 d2 a7 c4 a8B c3 h5 f3+ Kg3 b2 b7 f2 h6 b3 h7 c2 Ne2 Ne7 Rh3 Nd5 Nbc3 b1Q Bb2 c1N Ra7 Na2 Qc1 d1N Nb5 Bd7 Qc8 Nac3 Rh6+ Qf6 Rh3 Nb6 Nf4+ Ke7 e6 Nba4 e5 Qe4 Ng2 Qff5 Nc7 Bb5 Bd3 f1Q Bc2 Nf2 Rh6 Rg8 h8R Rg7 Rd8 Rh7 Rd3 Na6 b8Q Nh1+ Kh2 Qfe2 Qb6 Qef2 Bb7 Nb8 Ba6 Qf6 Rf3 g3+ Kh3 Qfd4 Rf1 Qff2 Ra1 Qdd5 Ra3 Qfd4 Nf4 g2 Kg4 g1Q+ Kh5 Qgf2 Ng2 Qef5 Ne3 Qd5e4 Ng2 Be8 Bf1 Bb5 Ne8+ Kf8 Nc7+ Kg7 Bc1 b2 e7 b1Q e8N+ Kf8 e6 Ke7 Bb2 Nc5 Nf6 N5a4 Qa5 Kd6 e7 Ke5 Nfe8 Qed3 Qb6 Ke4 Ng7 Kf3 e8Q Q3e3 Qe5 Qee4 Nge8
2RQ4/1Nq2q1n/kb1Q2qR/B4Npq/6pB/N2BRnq1/2b3Q1/K2b3b b - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 cxd4 g5 d3 g6 hxg6 Bb2 g5 Bc1 g4 f3 d5 Bg2 e5 Na3 g5 Nb1 d4 Bh3 Ra5 Bf1 Rd5 exd5 b5 f4 e4 Qe2 Rh6 Qd2 Re6 Qd1 Re5 fxe5 Bc5 Qe2 Bd6 Qd1 Bf8 Kd2 Kd7 h4 Kc7 c4 Kb6 a4 f5 d6 b3 a5+ Ka6 c5 f4 d7 b4 e6 f3 c6 f2 e7 b2 e8Q b3 h5 Nf6 h6 Bd6 c7 Nc6 h7 Ne5 h8B Bc5 Na3 b1Q Ne2 b2 Rh6 Bb6 Ng3 Bb7 c8R Nh7 Nf5 Qc7 d8N Qa2 Qf8 Qaf7 Qd6 b1Q Qc2 Bd5 Nb7 e3+ Kd1 Nf3 Be5 Qg6 Bg3 Qh5 Bh4 Be4 Ra2 Bc6 Rb2 Be4 Rb5 d2 Qcc6 Qd3 Re5 Bd5 Be2 Be4 Qe8 Bc6 Qed8 f1Q+ Be1 Bd5 Bb2 Qf2 Bc3 Qg3 Bf2 Qdc4 Kc2 d1B+ Kb2 d3 Bfe1 d2 Bd3 e2 Ka1 Bc2 Re3 d1B Bf2 e1Q Bb4 Qf4 Bh4 Qeg3 Be1 Qe4 Bd2 Ka7 a6 Bc6 Ba5 Q4f7 Nd4 Qeg6 Nf5 Bd4+ Bc3 Kb6 a7 Bc5 a8Q Bd4 Nc4+ Kb5 Qa2 Bb6 Ba5 Ka6 Qb2 Nd2 Qa2 Bh1 Qb2 Nf3 Qa2 Bb1 Qg2 Bbc2 Na3+
1qqr2B1/1p5Q/kNq1N2r/1p3R2/5Rr1/1RB1q2Q/pKnQ2p1/N3Bn2 b - - 0 1 illegal: No proof kernel
1K1bq3/rN4b1/2BB1R2/1R1n2Q1/4qBrn/q3R1qq/4bQ1N/N1nk1r1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 d5 b4 f5 e4+ d3 c3 h5 g5 a5 g6 f3 g7 f2 b6 h3 b7 f4 b5 a4 b6 h2 Ra3 f3 Rb3 d4 Bd2 a3 Be3 a2 Rb5 a1B Rd5 h4 Rb5 h3 Bg2 f1R Bd2 f2 Qg4 Be7 Qh4 Bg4 Ne2 Nf6 g8Q+ Nd5 Ng3 Qe8 Bf4 d2 Na3+ Kd3 c4 d1N c5 N1c3 c6 Ne2 c7 Bd8+ Kd6 Nc1 c8N Nc6 b8B Nce7 e5 Be2 e6 Ra7 b7 Ng6 e7 Kc3 Qg5 d3 Qf7 d2 Nc2 d1Q Qh7 Bb2 Na1 Qa4 Bc7 Qe4 b8Q Rg8 Qb6 Nh4 Rg1 h1Q Bb8 Qh5 e8R h2 Re7 Qa4 Re3+ Kd2 Kc6 Bc3 Nd6 Qa3 Nb7 Bg7 Bbd6 Kd1 Kd7 Qg6 Kc8 Qe8 Bf3 Qg2 Kb8 h1Q Qhh6 Re1 Nf1 Qg3 Nh2 f1Q Qhh5 Qfh3 Rf1 Q1g2 Rf2 Rf1 Qh7 Nc3 Bc6 Nd5 Qhh5 Qge4 Qf3 Qh5 Qh1 Qh8 Bfe5 Qh5 Rf6 Qe8 Bf4 Bh8 Qe5 Rg4 Qg5 Bg7 Qd4+ Bd3 Qb2 Bc4 Qbg2 Be2 Qf2
3brq1q/r2r1nB1/3R1nb1/r2R4/2n1N3/QQnnQ2N/4k2K/1BqRN2B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 Kg2 h5 c4 f5 c5 a5 g5 d3 c6 Kd4 c7 d2 e5 Ke3 b6 a4 g6 f3+ Kh3 a3 b5 f4+ e6 a2 b7 f2 g7 d4 b6 f3 Na3 d3 Rh2 Nd7 b8Q Ra5 e7 Ngf6 e8B Be7 g8N Ne5+ Bd7 Nf7 b7 Qf8 Nb5 Bd8 Bg4 Bf5 c8Q Bg6 Rb1 a1R Be2 f1N Bf5 f2 Qa8 Ra7 b8R R1a5 Kg2 h3+ Kh1 h4 Qb3 Nd7 Ba3 d1R Rb6 Nd2 Bf3 f1Q Qc1 Nf6 Bb2 Qe1 Rf2 h2 Rd6 Qf1 Qcc3 Nc4 Nd4 Rd2 Bd5 Qc1 Nf3 Rd1 Kg2 h1N Rd2 Nf2 Ne1 h3+ Kg3 h2 Nh3 h1Q Bde4 Qf3+ Kh2 Qh5 Bh1 Qhh6 Ne7 Rg8 Nc8 Qh8 Ra1 Qfh6 Rd5 Re8 Nd6 Q6g7 Ne4 Qgf8 Rc2 Rd2 Qd4+ Ke2 Qe3+ Kf1 Rd6 Rd1 Bd4 d2 Rc3 Nd3 Rb1 Na3 Rc5 Nc4 Rcd5 Nh7 Bg7 Nf6 Qc5 Ke2 Qca3 Re5 Qc8 Ree7 Qe6 Red7 Ng2 Re1 Qe5 d1N Qe8 Rg1 Ne1 Nc3 Qe5 Rf1 Qd4 Rf3 Qe3+ Kf1 Qd4 Qd2+ Nf2 Ke2 Qdc5 Ndb2 Be4 Re3 Rd1 Qc1 Bb1 Re8 Ne4 Nd3 Qe3+
b3n1Q1/R2NK2b/1bNB1R2/1kq1n1B1/1q1Q2Q1/4R3/r1NbBrn1/3n2qb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 h5 e4 a5 b4 f5 c4 f3 b6 Kc6 c5 f2 e5 a4 b7 h3 e6 h4 e7 a3 e8N h2 g5 h3 g6 a2 g7 f4 Qe2 f3 Bd2 Qb6 Nf6 Bf5+ Ne4 Kb5 c6 Nd7 b8B Ngf6 g8Q Qc5 c7 Bh6 c8R Ne8 Be3 Ne5+ Kd2+ d3 Bd6 d4 Rc6 Bh7 Nf6 Bg5 Qg7 Rf8 Nd7 Bd8 Ra6 Bb6 Bg5 Rf7 Qd1 Rf5 Be2 f1Q Qf6 f2 Nf3 Qg1 Qg7 Qg4 Re1 h1B Qg6 f1Q Na3+ Kc6 Qg8 h2 Nc2 Qfg1 Qc4 Qh4 Qe6 Rf8 Qg4 Kb5 Ra7 Bg2 Rb1 a1B Rb3 h1B Rf1 Ng6 Nfe5 Rf2 Nc6 Ne5 Rba3 Rf7 Rf6 Bc3+ Kc1 Be1 Kb2 Bd2 Kb3 Rf8 Re6 Rf1 Rf6 Rf2 Qf1 Bc3 Qf5 Rf3 Be7 Qd6 Rb7 Rf2 Na5 Ka6 Qd1 Ba7 Qf3 Qe4 Qg4 Qd5+ Ka4 Qb5+ Kb3 d2 Rc7 d3 Qa1 Bb7 Nc6+ Qa5 Qd1 Be3 Qa1 Bcd4 Qc3 Bc5 Qcd4 Ra7 Bf8 Ba8 Kc3 d1N+ Kb3 Nc3 Rb7 Nd5 Rc7 Nf7 Kc4 d2 Rb7 d1N Rb3 Bc1 Re3 Nf4 Rc7 Qe7 Rb7 Ng2 Kd5+ Bd3 Rc7 Ne5 Rb7 Qed8 Ke6 Qb8 Bd6 Bd2 Rc7 Qbb5 Ke7 Bh7 Rb7 Qc4 Rc7 Kb5 Rb7+ Ka4 b5 Ra6 Rc7 Ba7 b6 Qc5 b7 Ra5 Qd5 Ra6 Qg8 Qe4 b8Q Qec4 Qb1 Bb6 Qc1 Kb5 Ra7 Ra2 Qb2+ Qb4 Qbd4 Qc5 Rd3 Q4b4 Re3+
3n1RN1/b1q2Rqk/4p2B/2n2Q2/r1b1r1rr/bn3R2/B2rQK2/N2NQB2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Kg6 g4 a5 f4 d5 b6 h5 b5 e6 f5+ Kh7 c5 h3 g5 a4 b7 a3 c6 h4 f6 a2 f7 e3 b6 d3 c7 d2+ Ke2 d4 Bg2 h2 Bc6 h3 Bb2 d3+ Kf3 e2 Na3 e1B Bc1 Nh6 Bd5 Bf2 Qe1 d1R Nc2 d2 Ne2 Rg8 Rf1 h1R Nc3 Nd7 b8R h2 b7 Ba3 f8Q Nc5 Qf5+ Rg6 Rb1 a1N Ba2 Nf7 Rb3 Ra4 Ra8 Bd7 b8Q Bb5 c8B Bc4 Qb5 Qc7 Ba6 Nd8 Ra7 Qg7 Rf7 Rg1 Rf8 Rg4 Rf7 Re4 Kg2 Bd5 Qbe2 h1R Rb8 Bg1 Rf3 Nab3 Na1 Rhh4 Bd3 Bc4 Kg3 Nc6 Rbf8 Nd8 Kg2 Bh2 Kf2 Bb8 Qe3 Ba7 Bf1 Rd4 Q1e2 Re1 Qee5 d1Q Bf4 Qc1 Nd1 Qc3 Bh3 Qa5 Qec2 Rd3 Bf1 Qc7 Qd2 Ree3 Qe1 Rd6 Qb2 Rdd3 Qbe2 Rd2 Rf6 Re4 Be3 Qg8 R6f7+ Kh8 Bf4 Rgh6 g6 Rg4 Be3 Rh1 Bh6 Rhh4 Re8 Qf8 g7+ Kg8 Qf6 Kh7 g8N+ Qg7 Ref8 Nc6 Qe5 Nd8 Qf5+
5r2/7r/3Q4/4NnQN/r2prR1r/1KbqBRn1/QRnrr2N/kB4Bb b - - 0 1 illegal: No possible last move, all moves rejected
1nBq3n/BQ1bB1K1/rnNq2bR/8/N1RrRb1r/Q1Q1p3/3q2k1/4q2N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe3 Kg4 f5 e1Q f6 h3 f7 a2 Bg2 Bd7 c8R Ne7 Rc4 Ra6 Ba3 Bh6 f8Q Ng6 Be7 Bf4 Ne2 Rh4 Nbc3 Nh8 Na4 Qc1 Rb1 a1N Rbb4 Nb3 Be4 Na5 Bf5+ Kh5 Qd2 Qe1 Qc3 e4+ Kc2 e3 Kd3 Bc6 Bc8 Bd7 Qf7+ Kg4 Qh7 Kf3 g4 Qg3 g5 Kg2 g6 Qe1 g7 Qc1 Rc7 Nc4 Ng3 Qe1 g8Q Rg4 Rf1 h1B Qf8 h2 Rc6 Rh4 Rh6 Qf2 Rc1 Qe1 Kc2 d3+ Kb3 d2 Rc2 Ne5 Re4 d4 Kb4 d3 Kc5 Nc4 Kd5 Qe2 Rc1 d1R Qhg7 Nc6 b8B d2 Ba7 Nb8 b7 Nb6+ Kd4 Bg5 Ke5 Bf4+ Kf6 Qd3 Qg6 Qd6+ Kg7 Rg1 Qcf6 d1Q Qc3 Q1d2 Qgf7 Rd1 Rc2 Rb1 Qd5 Rb4 Qdb3 Rc4 Qa3 Rd4 Qf7 Kh3 Qd5 Bg2 Qdb3 h1Q Qf7 Qhe1 Nh1 Bf3 Qfb3 Bh5 Qbb2 Nc6 b8N Bg6 Qb5 Kg2 Rc1 Nc4 Qb7 Nb6 Qd3 Nf7 Rc4 Nh8 Qdc3 Bdf5 Nd7 Nb8 Ne5 Bd7 Nc6
2b3q1/2B2r1b/qQ2Qqp1/RN1RrQ2/1KN2n2/rN3Bn1/1b5n/BR1q2k1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kf6 h4 Kf5 b4 Ke4 b6 a5 e3 f5 b7 d5 c5 d3 Kc3 f3 b5 f2 h5 g3 h6 a4 b6 d4+ Kc4 g2 h7 f4 c6 d2 c7 f3 Qe2 d1Q Kb5 a3 Qa2 d3 Kc4 d2 Rh6 Na6 b8R Ne7 b7 Nc5 Kb4 Nf5 Be2 f1N Rh5 f2 Nf3 g1Q Ne5 Nh2 Nc4 Ng3 Rd5 f1R Bg4 Rg8 h8B Qf6 Bb2 Re1 Be5 Ne6+ Bd6 Nf4 Qb3 Bf5 c8Q a2 Qc5 Be6 Bc7 Bc8 Nba3 Re2 Nb5 Ra3 Rb1 a1Q Ra8 Bd6 b8N Be5 Ra5 Bb2 Nc6 Rf8 Ncd4 Rf7 Qb6 Re1 Qa2 Kd3 e4 Qg2 e5 Ke4 Ncd6+ Ke3 e6 Kf2 e7 Re5 e8Q Kg1 Qb3 Qa2 Bf3 Qgf1 Qe6 Qfe2 Na7 Qa6 Qc2 g6 Rdc5 Qd5 Nc4 Qdd8 Rd5 Qg8 Rd6 Qe1 Rdd5 d1B+ Qc3 Bb3 Nab5 Qd1 Qc2 Ba2 Nb3+ Re3 Qbc6 Qe8 Nb6 Qf5 Na1 Rg7 Rd4 Bc1 Qe5 Bg8 Nc4 Rf7 Qee6 Bh7 Rd5 Qg8 Nb3 Qg5 Bd4 Qf6 Ba1 Bb2 Qcf5 Re5 Qb6+
5K2/2k1rB2/RN2Q1N1/r1rrnr2/5bBb/nQ1b1nBN/r1QR1p2/1q2R3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 h5 e4 a5 b4 f5 c4 f3 b6 a4 e5 a3 c5 f2 b7 h3 e6+ Kc7 c6 a2 e7 f4 e8B h2 g5 h4 b5 h3 g6 f3 g7 Nd7 b8N Ra5 Bg5 Rh7 Bh4 Ba6 Ne2 Nh6 g8Q Be7 Qd2 Nf7 Qe1 Ng5 Qc1 Ne5+ Kd2 d3 Ke3 d2 Kd4 d1N Qe6 Nb2 Nd7 Nbc4 Qc2 Na3 Bg3 Qb8 Nb6 Qb7 Bg2 f1R Nf4 f2 Bd7 Rc1 Re1 h1R Nd2 h2 Ndc4 Rf1 Nh3 h1R Be8 Rh2 Bf7 Nf3+ Ke3 d4+ Kf4 d3 Kf5 Bd6 Kf6 d2 Qb3 Rh5 Kg7 d1R Kg8 Rf5 Qc2 Ng4 Ne5 Rd5 Ng6 Bf4 Kf8 Nge5 Qb3 Rc3 Rad1 a1B Rd2 Rcc5 Qc2 Ng5 Bf3 Rfh1 Bg4 Ngf3 Ng1 Rh7 Nh3 Nec4 Qb3 Bf6 Qc2 Bh4 Qb3 Kb8 Qc2 Nce5 c7+ Ka7 c8R Rf1 Ree2 Ra1 Rc6 Kb8 Re1 Rg7 Na8 Ra2 b6 Bd3 Rd6 Qd7 b7 Qb5 Ra6 Qb1 Nb6 Rh7 Nc8 Kc7 b8Q+ Kd8 Qbb3 Kc7 Nb6 Rg7 Qf6 Rh7 Bg8 Rhd7 Bf7 Re7 Qe6
N5bQ/k1N3r1/1R6/B2BbK2/1np1nQ2/N2b1Rbn/1rQRr2n/1n1B1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 a5 b4 f5+ Ke5 c5 d4 Kc7 e4 Kb7 g4 h3 g5 a4 g6 f3 g7 c3 d5 c2 d6 h2 d7 c4 b6 f4 b5 h4 Qd2 a3 Bg2 h3 Nc3 a2 Ke6 f2 e5+ f3 Qd3 f1N Kf5 Ra7 e6 Nf6 g8Q Ne4 e7 f2 e8B Bd6 Nd5 Nc6 Rb1 a1B Bh5 Nfd2 Nf3 f1N Nc7 Nb4 Nd4 Bg3 Na8 Qf8+ Qf7 Rg8 Bd1 Rg7 Rb2 Kb8 b7 Nb1 Bd2 c1R Nc2 Ra2 Na3 Ka7 b8R Rc2 Rb6 Bb7 Rb3 Bae5 d8N Rcb2 Bc3 Re2 Ne6 Rab2 Nec7 Bd5 Rg1 h1N Qc2 h2 Be1 Qb8 Rf3 Nhf2 Bh1 Qf8 Rg2 Nh3 Rgf2 Na6 Ba5 Nb4 Bg2 h1B Qf6 Re1 Rd2 Bf7 Qh6 Nh2 Qh8 Re3 Rbd6 Re2 b6+ Kb8 b7 Ka7 Rb6 Bg8+ Rf6 Qc5 Rb6 Qg1 Rb3 Qf1+ Bf3 Nef2 Bd5 Bf3 Rc3 Ne4 Rcd3 Rg2 Rc3 Be2+ Rf3 Bd3 Ne6 Bc7 Rb5 Re2 b8Q+ Ka6 Rb7 Bcd6 Rb5 Bdf4 Qd6+ Ka7 Rb6 Qg1 Nec7 Qf1 Qdh6 Be5 Qf4
n1Q2Nn1/rNBR4/rbR1R3/3Qrp1b/Bn2kq1r/1nQ5/3r1B2/4KN1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Ke5 b4 d5 b6 h5 c5 a5 g5 f3 c6 h3 b7 f2+ Kd2 h4 c7 h2 g6 d3 g7 d4 b5 h3 b6 a4 Be2 f1N+ Ke1 a3 Bg4 a2 Bg5 Rh7 Be3 Qf6 Bd7 Bc5 Nd2 Na6 b8R Nb4 b7 Qf4 Bf2 Bb6 Qf3 Ra6 Ne2 Ne3 Ba4 Nc4 Rd1 a1N Nf1 Bg4 Rc8 f5 b8B Bh5 Rg1 h1R Rg6 h2 Rf6 Qg3 Nf4 Nb3 Ne6 Qf4 Nf8 d2+ Ke2 Nh6 g8Q Rg7 Qf7 Ng8 Qd7 Rf7 Rc6 Re7 Re8 Re6 Re7 Ra7 Re1 d1R Qd8 Rd3 Rd7 Re3+ Kd1 d3 c8Q+ Rd6 Bc7 d2 Re2 Kd4 e5 Kd3 Qg3 Ke4 Qh3 Rg6 e6 Rf6 e7 Re6 e8N Re5 Qg5 Rea5 Rdd6 R5a6 Qgd8 Ke5 Qg2 Ba5 Ne6 Nb6 Qf3 Na8 Nf8 Re4 Re3 Bb6 Ke2 d1R Qdd7 Rd5 Ke1 Kd4 Re6 Re5 Nd6 Raa5 Qdd8 R5a6 Nb7 Rd6 Re4+ Kd5 Qc3 Rd7 Re2 Rd6 Be3 Ke4 Rg2 Rd2 Bf2 Rg1 Qdd7 h1Q Rg7 Rg4 Qd6 Rh4 Rd7 Qg1 Qdc5 Qh1 Qd5+
2R3b1/N1B3bp/4b2n/Q1rR1rN1/r1Q1bq2/N2B1qkB/1QrR2n1/K3b3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 Kc2 Kg5 e4 a5 g4 d5 b4 f5 Kb2 h3 b6 Kh4 b5 h2 b7 d3 g5 a4 g6 d4 e5 a3+ Ka2 f3 c5 d2 e6 d3 e7 f4 e8R f2 b6 f3 c6 Qd6 g7 Na6 b8N Kg3 c7 Nb4+ Kb3 a2 Kb2 Be6 c8Q Ra4 b7 Nd5 Rd8 Nf4 Qc4 Nh6 g8B Ng2 Rc8 Qf4 Qc7 Bb4 Qb3 d1R Qbc4 d2 Bd3 f1Q Nh3 f2 Ng5 Qe2 Bf7 f1R Na3 Qf3 Nc6 Re8 Rg1 h1B b8Q Ba5 Rb1 a1B+ Ka2 Bh8 Rb2 Bg7 Ka1 Rf2 Qcb6 Rdf1 Na7 d1B Qd8 Bd2 Qa5 Be1 Bfg6 Rc2 Bgf5 Rf8 Bh3 Rf5 Be3 Bg8 Bb6 Rc5 Qe5 Rff2 Bc7 Be2 Ra2 Be6 Qb2 Bf1 Be4 Bd3 Bg6 Be4 Bgf5 B4d5 Bd3 Bg8 Rf1 Bde6 Rg1 Rfe2 Rf1 Ree5 Rf2 Rf5 Re2 Rcd5 Re5 Rc5 Rd5 Rc3 Nb1 Ne3 Bc2 Qh5 Qc1 Be4 Na3 Ng2 Bd3 Qf3 Rd2 Rc2+ Qb2
1Q2qbBq/Q1r5/1Q1Bb3/N1R2q1k/1R1r2Nq/R3nB2/1n1nr1p1/2KN3n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 e4 f5 c4 Kf7 h4 Kg6 b4 a5 e5 a4 c5 g3 e6 d3 c6 f3 c7 d4 b6 a3 b7 a2 e7 f4 e8R f2 b5 f3 b6 g2 Re1 Nc6 b8Q Nh6 b7 Ra7 Re4 Na5 Ne2 g1Q Bh3 f1N+ Ke1 Nc4 Rg4+ Kh5 Qa4 g5 Kd1 f2 Ba3 d2 Bd6 Qe8 Nc1 Nf5 Bg2 N5g3 Bf3 Qh2 Nc3 Be6 c8B Nb2+ Kc2 d1R Nb3 Rg8 Na5 Nd2 Qb4 f1Q Qb6 Re1 Nd1 d3+ Kc1 Re2 Rb4+ g4 Qa8 Rg7 b8Q Rad7 Qaa7 Qfh3 Rg1 Nh1 Bcb7 Qf4 Bbd5 Qf5 Rg3 Rh7 Rb1 a1Q Rc4 Rd8 Rc5 Rc7 Bc4 Kh6 h5 Qh4 Bb3 Kg5 h6 Kh5 h7 Rdd7 h8N Rd8 Bc6 Rdd7 Rf3 g3 Nf7 g2 Nh6 Rd8 Be7 Rd4 Ng4 Qa4 Bd6 Qb5 Rc3 Qbe5 Rh3 Qh8 Bf3 Ne4 Rc5 d2+ Kc2 Bd7 Bg8 Be6 Ndf2 d1N+ Kc1 Ne3 Nd1 Nd2 Rg3 Nbc4 Rb4 Nb2 Ba8 Nc2 Ra3 Ne3 Bf3
1Brr1Q1n/B1Q3b1/2R4Q/1RrkbBNq/6q1/n5p1/N1bK2N1/1bR3qq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 g5 h4 f5 h5 a5 h6 d5 e5 f3 h7 f4 c5 g3 b6 d3 b5 d4 c6 f2+ Kd2 g4 b7 g2 c7 a4 b6 f3 Bb2 a3 Rh3 g3 Qe1 a2 Rh1 Qh4 Bc3 Qh5 Na3 Na6 b8Q Ne7 b7 Nb4 Rh2 Ng6 Ne2 g1Q Nb5 Bg7 Qc1 Kd5 e6 Rd8 h8N Nc2 e7 Bf5 e8Q Na3 Bh3 f1R c8R f2 Nf7 Nh8 Qf8 Qg4 Rb1 a1B Rc6 Qh5 Qf4 Rac8 b8B Re1 Ng5 f1Q Qc2 Rc1 Rh1 Qff3 Bb4 Qfg4 Bc5 Be5 Bca7 Bg6 Qd1 Rc5 Qh6 Bg7 Qdf1 Bb2 Qc7 Bc3+ Kd1 d2 Rc1 Bb1 Rh2 Qf3 Bf5 Qfg4 Rf2 Bb2 Nc3+ Kc4 Qf6 Qgh2 Be4 Qh1 Na2+ Bc3 Bc2 Kd5 Qh6 Bb2 Rf3 Bc3 Ng1 Ba1 N1h3 Bb2 Ke2 d1B+ Ke1 Ba1 Rb3 d3 Rb5 Bae5 Nf4+ Kc4 Ng2 Kd5 Ba4 Bb3 Kd2 Bd1 Ke3 d2 Qf8 Bb3 Qff6 d1Q Qf8 Qdg1+ Kd2 Bc4 Bd1 Bb3 Bc2 Ba4 Bh7 Bac2 Bf5
1k1r1r2/r3B1R1/3B1RB1/2q2N2/np2Q2b/1qqQn2Q/4b1nK/Nn2qN1R b - - 0 1 illegal: No possible last move, all moves rejected
Bq4nq/5R2/Q4RB1/2NQp2b/5qnR/2brb2n/Nn3QrN/Bk3K1b b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 g4 Kf7 f4 Kf6 b4 h5 c4 a5 f5 Ke5 g5 d5 b6 a4 b7 d3 b5 Kd4 c5 e5 b6 h3 c6 e3 f6 d2+ Ke2 h2 c7 h4 g6 h3 g7 a3 f7 a2 Na3 Kc3 Bg2 d4 Qe1 d3+ Kf1 e2+ Kf2 Nd7 b8Q Bc5+ Kg3 Ndf6 f8R Bg4 c8Q Bh5 b7 Ng4 Nb1+ Kc2 Nc3 d1N Rf6 d2 Bb2 Be3 Qd6 Ra3 b8N Ndf2 Nd7 d1N Qca6 Qb8 Ba8 Rh7 Rb1 a1B Na2 Rd3 Qd5 Rh6 Bd4 Bc3 Nc5 Rg6 Rb7 Nb2 Rbf7 Rg5 Qd2+ Kb1 Nf3+ e1Q Qe2 Qc1 Qd2 Ne7 g8B Qf1 Bh7 Ng8 Bg6 Qc1 Rd1 h1B Qe2 h2 Rd2 Nh3 Qf2 Bg2 Rd1 h1Q Nh2 Qf1 Re1 Qe2 Rg1 Bh1 Rg2 Qec2 Kf3 Qa4 Ke2 Qae8 Rg3 Qd2+ Kf1 Qf8 Rgf3 Qh6 R3f4 Qh8 Ne4 N4h6 Rh4 Rg2 Bc5 Ng4 Bb4 Bed4 Nc5 Qf4 Ba3 Nd1 Bb2 Be3 Ba1 Nb2 Rb7 Qb4 Rh7 Qf4 Rhf7
1r1q3R/2k2b1N/Q3bp1B/1r2q3/rb2N3/1R1R1B2/1nKQnr1n/QB1nN3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 g4 h5 c4 a5 e4 a4 g5 d3 g6 h3 c5 h2 e5 d4 c6+ Kc7 e6 h4 e7 h3 e8B f3 g7 f6 Bg2 a3 Bg6 f2 Nf3 f1R Nc3 a2 Ne1 Ra4 Ne4 Be6 Bf3 Nh6 g8Q Ng4 Bh7 Be7 Qg5 Bd6 Rb1 a1Q Rb3 Rf8 Rg1 h1B Rg3 h2 Qd5 Bg2 Qg5 h1R b6+ Kc8 b7+ Kc7 b5 Nh2 Qe5 Rf2+ Qe2 Bgh3 Kd1 d2 Kc2 d1N Bh6 Re8 Qd2 Nb2 Rd3 Rg1 Rg8 Rgf1 Rh8 Bf7 Bg6 Bhe6 Bh7 Kb6 c7 Bb4 c8Q Nc6 b8N Rg1 Bf5 Rg5 Bg6 Na5 Qc4 Nb3 Nd7+ Kb7 b6 Nc1 Qcb5 Ne2 Nf8 Rh5 Qa6+ Kc6 Qg3 Rb5 Nh7 Rg8 b7+ Kd7 Qgg5 Kc7 b8R Re8 Qd5 Rg8 Ra3 d3+ Kb3 Nc4 Qf4+ Qd6 Rd8 d2 Nc3 Re8 Qde5 d1N Bb1 Bf5 Ne4 B5e6 Qd2 Rg8 Qec3 Qe5 Rd3 Rgb8 Qcb2 Qd6 Qa2 Qae5 Qa1 Qd8 Kc2 Ncb2 Rab3
1Kn2N2/1n2kpNQ/1rbB2r1/R2Q1R1r/1b6/r1n1B1qQ/B2pb3/2r1N2R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 h5 b4 a5 c4 a4 g4 d3 e4 d4 c5 d2 b6 h3 b5 h4 b7 d3 g5 h2 b6 h3 g6 a3 g7 a2 c6 Rh5 e5 Nd7 Ke4 f3 Kd5 f2 b8B Rh6 c7 Ra7 b7 Qe7 e6 Qh4 Kc6 Ba3 Nf3 Qg3 Nc3 Ke7 Na4 Rg6 Ne1 Nc5 Nb6 Bb4 Nd7 Ra3 Nf8 Bd7+ Kb6 Ba4 c8Q Bc6 Be2 Rb3 Ka7 f1B Bg4 Be2 Bd6+ Kf6 b8Q Ne7 g8R Nb7 Bf3 Rb2 Bd5 Rb3 Qc2 d1N Qa8 Nc3 Be3 d2 Kb8 Ra3 Qd7 Nc8 e7 Ra6 Rh8 Rb6 Qa3 Ne4 Rh5 Nc3 Rg1 h1R Rf5+ Kg7 Qd3 h2 e8N+ Kg8 Rgf1 Rg1 Qb3 h1R Ng7 Rh5 Be6 Rgh1 Ra5 Rg1 Qbd5 Rgh1 Rb1 a1R Rf5 Ra3 Q3e4 Rg1 Qh4 Rf1 Qh3 Rg1 Qdh1 Rf1 Ba2 Rg1 Qe6 Rf1 Qed5 Rg1 Nc2 Rc1 Ne1 Bd3 Nf3 Rhg5 Q3h2 Re1 Nh7 Be2 Qh6 Rf1 Q1h3 Rh5 Rc1 Rf2 Rg1 Rf1 Rh1 Ra1 Ne1 Rc1 Ng5 Ne7 Qh7+ Kf8 Bdf4 Nc8 N5e6+ Ke7 Nf8 Qf2 Be5 Qg3 Bd6+
2Q3B1/1R1pN1r1/1qnB2r1/2r5/R5NK/bb5n/1rp1n1Bb/Q1QkNRr1 b - - 0 1 illegal: No possible last move, all moves rejected
rR3QKR/2q1B3/2qR1N2/1Nb2Qp1/QkB2nq1/pn6/2q1Nr2/1Bnq3b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 f5 e5 a5 b6 d5 e6 g5 b3 a4 b7 g3+ Kf3 d3 e7 d4 e8N d2 h5 d3 h6 g2 h7 Ne7 Nf6 Kb4 c5 Qc7 c6 Ng6 Na3 Nd7 b8Q+ Bb7 Nb5 Bc5 Ne2 g1Q Qc8 Rf8 h8Q a3 Bb2 Rf7 Qhf8 Qh2 Qc2 d1Q Rc1 Qg1 Rh8 d2 Be5 Qd4 Bd6 Qc4 Qe4 Qc2 Be7 d1Q Rb1 Qd5 Rd1 Qe6 Rd6 Nde5+ Kg2 f3+ Kg3 f2 Qd7 Qb6 c7 Nf4 c8B Ned3 Qe5 Nc1 Qc6 Ka5 b4+ Ka4 Qd7 Bh1 Bb7 Qc7 Be4 Qcd5 Bd3 Qdc6 Qd4 Qb2 Bb1 Qc2 Qd3 Nd5 Kh3 f4+ Qf5 f3 Kg4 Qee4+ Kh5 Qg4+ Kh6 Nf4 Na7 Kb3 b5 Kc4 b6 Kb4 Qfe8 Rf8 b7 Rf7 Nb5 Rf8 Bg2 f1Q Kg7 f2 b8R Qfd1 Bd5 f1N Bc4 Nd2 Qdd8 Rf7+ Kg8 Ndb3 Qf8 Rh7 Qdd7 Rh2 Qde8 Rf2 Qed7 Qa5 Qa7 Qac7 Qa4+
2QN4/1Qqqnq2/1R1rB1Bn/2p1Br2/b2k2q1/2q1b2N/1np4K/2Q1R1NR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Kd6 g4 Ke5 Kg2 c5 b4 a5 b6 f5 b7 h5 d3 a4 g5 h3+ Kf2 a3 b5 a2 b6 h4 g6 f3 g7 h2 Ba3 h3 Kg3 f2 Be2 f1Q Qd2 c3 Bh5 c2 Bg6 Rh5 Bb2+ Qd4 Qe1 Nc6 b8R Qe2 b7 Ra6 Qd1 Be7 Qf1 Nh6 g8B Bg5 Bc3 Bd7 Qf4+ Kf6 e5+ Ke7 e6 Kf6 Qf1 Ke5 e7 Be3 e8Q+ Ne7 Qc8 Ba4 Be6 Qd2 Ne2 Qd1 Rg1 h1Q Bh7 h2 Nd2 Qc6 Nf4 Qc7 Nh3 h1N+ Kh2 f4 Bg6 Nf2 Rh1 Qg4 Rb1 a1Q Nf3+ Kd6 Ng1 Ke5 Qd1 f3 Qd2 Rg5 Re1 Nd1 Qc1 f2 Bb2 f1Q Bc3 Kd6 Bb2 Qd5 d4 Qf7 Bc3 Qdc6 d5 Rf5 Bh8 Qaf6 Bg7 Ke5 d6 Qb5 d7 Rd6 d8N Ke4 Bh8 Qc3 Be5 Qbd7 Ra8 Nc6 b8Q Nb2 Ra6 Ne7 Rb6 Kd3 Qa7 Ke4 Qab7+ Kd3 Bf4 Kd4 Be5+
3b1q2/6Bn/1B1RKpq1/rk1rNB1b/N1p3Q1/1bqRNn2/Q3R2q/2qQ4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 c5 Ke4 h5 Kf5 a5 e4 f3 b4 h3 d4 f2 g4 f6 g5 a4 g6 h4 e5 c3 b6 Kc6+ e6 c2 d5+ Kd6 g7 a3 b7 a2 b5 h2 b6 h3 Nc3 Ra5 Bd3 f1B Na4 Be2 Bh6 c1Q Nf3 Nc6 b8N Be7 b7 Qf8 Nd2 Bh5 Nf1 Ne5 Nd7 Bd8 e7 Nf3 e8R c4 Rg1 h1Q Re2 h2 Rg3 Qg2 Ne3 h1Q Be4 Kc7 Ke6 Qhh2 Bf5 Ne7 g8Q Ng6 d6+ Kc6 Bg7 Kb5 b8Q+ Bb7 Qa8 Be4 Ne5 Bc2 d7 Bb3 Rb1 a1Q Rbb2 Qgg1 Rbd2 Qac3 Rd4 Ngh4 Rd6 Ng5+ Kd5 Nh7 Ke6 Nf3 Rh3 Be7 d8B Qg6 Bb6 Bd8 Nc2 Nd2 Rhd3 Nf3 Ne3 Qh4 Qf7 Qh2 Qfb7 Rg8 Qe4 Rh8 Qg4 Rg8 Bh6 Rg7 Qa7 Rd7 Bg7 Qh8 Nb2 Ra4 Rc6 Rd5 Rd6 Qf8 Qa8 Rb4 Qa3 Ra4 Qa2 Ra5 Na4
5kb1/rppR3r/3bq2Q/3Bq2n/1NR1rrr1/N2KBN1n/4Q3/2RB1Qn1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 f5 Kd2 h5 a4 h3 g4 f3 e4 f4 d6 h2 g5 f2 g6 b3 a5 f3 g7 h4 e5 b2 e6 h3 e7 Nf6 g8Q Ra7 a6 Rh4 d5 Nc6 Qg7 Nh5 Na3 b1R Be2 f1R Qh6 f2 Kd3 Qd7 Nf3 Rbb4 Be3 Rbg4 Rc1 Nd4 Rc4 Qe6 d7+ Kf7 Rg1 h1R d8R h2 e8B+ Kg8 Qd2 Bd6 Bd1 Ne2 Rd7 Re1 Rf1 Ng1 Qe2 Rf4 Bg6 Rhg4 Be4 Qe5 Re7 Be6 Rd7 Bb4 d6 Bc5 Rg7+ Kf8 d7 Bd6 d8N Bg8 Nc6 Qe6 Bd5 Qe5 Qa2 Re2 Re1 f1Q Nb4 Qh3 Qd2 Rgg2 Qb2 Qhe6 Rd7+ Rg7 Bf2 Ree4 Be3 Nh3 Qf2 Rg1 Qe2 h1N Rf1 Rgg4 Rg1 N1g3 Qf1 Ra8 a7 Ne2 Rh1 Neg1 Qe2 Rc8 a8Q Rb8 Qa6 Ra8 Qf1 Ra7 Rh2 Qe8 Rhc2 Qg6 Rc1 Qge6 Qg5 Rh7 Qh4 Rff7 Qhf2 Rf5 Q2e2 Rff4 Qb6 Qf7 Bd4 Be7 Qg6 Bd6 Be3 Qfe6 Qh6+
nb1N3b/8/N1r2B2/3R1q2/1n3N2/pQqbkrpB/1QRqq1r1/1KBR3Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 Ke4 Kc2 f5 e3 a5 c5 g5 c6 d5 b6 a4 b7 d3+ Kb2 f3 h5 d4 b5 f2 b6 g3 h6 f4 c7 g2 h7 a3+ Ka2 d2 Bb2 d3 Qb3 d1Q Bf6 d2 Qf7 f3 Ne2 g1B Rh5 g4 Rg5 g3 Bh3 f1R Nd4 f2 Qb3 Ra6 Ne6 Nc6 b8Q Bg7 b7 Qc1 Rd5 d1Q Nc3+ Kf3 e4 Ke3 e5 Nge7 Ne2+ Qc3 Rc1 Nb4+ Kb1 Rc6 N2f4 Qe2 Rcd1 Qd6 Nd8 Bf5+ Qc2 Re8 c8R Bh8 e6 Bd3 Qa8 Qd7 b8Q Rf8 Rc7 Nc8 e7 Nb6 e8N Qf5 Rc8 Qed2 Nc7 Rf7 Qab7 Na8 Na6 Re1 Bg5 f1Q Bh6 Qfe2 Rc7 Be5 h8B Bf2 Bf6 Rg1 Rc8 Rf8 Qh7 Rg2 Qb5 Bb8 Qc4 Kf3 Qb3 Bd4 Qb2 Ke3 Qb7 Na2 Q7b3 Nb4 Bhg5 Bb5 Qe4+ Kf2 Rd6 Re8 Qec2 Qde3 Nfe6 Qc4 Re1 Rb6 Be7 Bh8 Rd5 Qcf4 Rc3 Rc6 Bef6 Q4e5 Rh1 Bd3 Qc1 Re7 Qg1+ Kf3 Qh2 Kf2 Rd1 Q3f4 Qh1 Qed4 Nec5 Re3 Nce6 Rf3 Rcc5 Qfd2 Qb2 Qde1 Bc1 Q1d2 Nf4 Qde5 Ka1 Ke3 Qb3 Qd4 Rc2 Qc3 Kb1
K2Q2B1/3Bb1bn/1qN3rn/Q2N4/n3ppr1/1bRqBR2/2R4b/4qkNQ b - - 0 1 illegal: No proof kernel
1kRQK1b1/R5N1/nBr3Nq/1Bp2q2/pq1QNb2/2b3Bb/1n3Rr1/2n1Q3 b - - 0 1 illegal: No possible last move, all moves rejected
K1N1rknN/RnB1Q3/bQ3n2/1p2b3/q3B1rq/q1Q1pRb1/1b4R1/2N3B1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 c5 Ke3 e5 a4 h5 g4 b5 f4 h3 d4 b3 a5 b2 g5 c4 f5 h4 g6 h2 f6 h3 d6 c3 f7+ Kd7 a6 c2 d5 Qe7 a7 Qf6 g7 Qe7 Na3 b1N Qe1 Na6 Qc3 Nb4 Nc4 Nf6 g8R Ba6 Bg2 Nc6 Ne2 Nd2 Rf1 h1Q Rf3 Re8 a8Q h2 Qb8 Nd8 Qb6 Bg7 f8Q Rh4 Ba3 c1B Bc5 Bb2 Nc1 Qd1 Bd4 Bc8 Ra7+ Nb7 Bh1 Bh8 Rg2 Rg4 Qg7 Qa4 Qh7 Reg8 Qh4 Ke8 d7+ Kf7 d8N+ Kf8 Nf7 Qea3 d6 Bg7 d7 Bh8 Ke2 e3 Kd3 e2 d8B e1B Bc7 Nde4 Ncd6 Bg3 Bg1 Bg7 Qg5 Rh8 Ke3 Ng8 Kd3 Nef6 Qh4 Rh5 Nh8 e4+ Ke3 Re5 Qg5 Q4b3 Kd4 Re8 Qgc5 Qba4+ Qb4 Na5 Kc5 Ba6 Nc8 Nb7+ Kc6+ Re7 Be5 e3 Qe4 Re6+ Kc7 Re8 Kb8 Bh6 Bc7 Bhf4 Ka8 Bd6 Re2 Bde5 Bg2 h1Q Ref2 Qh5 Bh1 Nd8 Rg2 Qh4 Qh7 Nb7 Qd7 Nh6 Qe7+ Kg8 Rgf2 Qd4 Rf5 Qd1 Be4 Qda4 Qec5 Kg7 R5f3 Nhg8 Q5b4 Qa1 Rg2 Q1a3 Qbb3 Kf8 Q3e6 Qh7 Qd7 Qh4 Qe7+
2b3b1/2R1Bqp1/2p1qq1B/kB4N1/1rb4Q/QR3R1r/2K1n2Q/rn1NN1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 d4 f5 Kd2 a5 h4 f3 e4 c3+ Kd3 f2 h5 a4 e5 a3 h6 g3 h7 c2 d5 g2 d6 f4 b6 Kc6 d7 Kb5 b7 a2 e6 f3 e7 Nf6 e8Q Nc6 Qe4 Nd4 Rh3 c6 Bh6 c1Q Qb3 Ne2 Qa3 Qf4 Kc2 Ra4 b8R+ Ka6 b5+ Ka5 b6 Bc5 b7 Nd5 Qc4 Qf7 Nc3 Qdf6 Nd1 Ndc3 Qh4 Nb1 d8B+ Bb6 Rg3 Q7e6 Be7 Be3 Nh3 g1Q Nf4 Qef7 Rh3 Qg4 Ng2 Qge6 Ne1 Bc5 Bg2 f1B Rg3 f2 Rf3 Rd8 h8N Rd3 Bh3 Bg2 Bf5 Re3 Bd3 f1B Bb5 Rd3 Nc3 Bg1 Nd1 Nbc3 Rb1 a1R Rb3 Nb1 Ra8+ Kb6 Ra7 Rb4 Rh3 Bd5 b8Q+ Bb7 Qd6 Bc8 Qh2 Bc4 Rd7 Bg2 Rc7 Bgd5 Rf3 Re3 Rf2 Rg3 Rff3 Rh3 Qc1 Ka5 Qe3 Qf8 Nf7 Qg8 Ng5 Qgf7 Q2f2 Be4+ Qd3 Bh7 Qh2 Bg8 Qe3 Bb7 Qc1 Bc8 Qa3+
2b1N1n1/R3rpQB/BnR3Nb/4B3/3qQ1b1/K1R1p1q1/nr3kQb/2q2N2 b - - 0 1 illegal: No proof kernel
n1r5/1RB2R2/BqpK3R/1Q3Q2/q2kqQ2/2bbN2B/1q1npqqr/1N4N1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Kf6 Kf4 a5 d4 h5 b4 e5+ Ke3 h3 g4 a4 f4 a3 d5 h4 f5 a2 b6 c3 b5 c2 b7 h2 b6 c6 d6 h3 d7 Na6 b8R Nc7 b7 Bb4 Qd3 Bc3 Qb5 Rh6 Bd2 c1Q Bc4 Qb2 g5+ Ke7 f6+ Kd6 f7 Nf6 g6 Rh4 Qb3 Kc5 g7 Rh5 g8B Rh6 Ke2 e3 Kd3 e2 Ba6 e1Q Bf4 Qef2 f8N Rh8 Nh7 Ne4 Be6 Nd2 Nf6 Rh7 Nd5 Rh8 Ne2 Rh7 Rf1 h1Q Ng1 h2 Ne3 Qhg2 Bh3 h1Q Qe6 Rh8 Qf5 Rh6 Bg4 Rh2 Bh3 Qdh4 d8Q Qb6 Bg3 Qa4 Qdg5 Be6 Rh8 Rc8 b8Q Na8 Rh6 Bg8 Qgf4 Bh7 Na3 Bg6 Rab1 a1Q Rb4 Qb2 Nb1 Nf3 Ke4 Bh7 Qg6 Nd2+ Kf5 Qe4+ Ke6 Qhg2 Qgf5 Bg6 Rb5+ Kd4 Ke7 Bh5 Kd6 Be2 Bh4 Bd3 Bd8 Qba5 Rb7 Qab6 Q4g5 Qeg4 Qc7 e4 Qcf7 Qgh4 Bc7 Qhg4 Qb5 Qge2 Qgf5 Qee1 Nd1 e3 Qf8 e2 Ne3 Qff3 Qf4+ Qe4 Rf3 Qef2 Q8f5 Qba2 Rg3 Qa1 Rg7 Qb2 Rf7
4R1QN/2Nq1p1b/5Knr/r1b1p3/3BRkB1/q4n1Q/bb1B2b1/N2Q2bR b - - 0 1 illegal: No proof kernel
1R1r4/krrp2Bn/Q1B2b2/3bNQ1N/N1nK1Rq1/5p2/3RBQ1n/2rn3n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 g4 h5 e4 a5 c4 h3 b4 h4 b6 a4 e5 d3 b5 a3 c5 a2 g5 f3 Ke3 f2 b7 h2 b6 d2 g6 h3 g7 f4+ Kd4 Qe7 e6 Kd8 c6 Qf7 Nf3 Nf6 g8B Be7 Qe1 d1N Ne5 f3 Nc3 Ra7 Be2 f1N Bh6 Qh5 Qf2 Nh7 Na4 Bf6 Bg7 Qg6 Rg1 h1R Rg4 h2 Rf4 Qg4 Rc1 a1R Rc2 Rb1 Rd2 Rg1 Bf7 h1N c7+ Ke7 Bg8 Kd6 e7 Nh2 Bd5 Rd8 Be4 Rc1 Bc6 Re1 Bc4 Re3 Be2 Rb3 e8N+ Ke6 Bh6 Ke7 Ng7 Kd6 Nh5 Rb2 Bcb5 Rbb1 Bg7 Nc6+ Kd3 Rb2 b8Q Na5 Bc6 Nc4 Kd4 Ba6 c8Q+ Rc7 Qcb7 Rb4 Q7a7 Bb7 Qa5 Ba8 b7 Rbb1 Qc8 Rb4 b8R Rb2 Be4 Bd5 Qca6+ Rb6 Q6b5 Rbb7 Qb1 Rc5 Qa6+ Kc7 Qe6 Rc6 Qf5 Rc5 Nb2 Kb6 Na4+ Ka7 Qb5 Bg8 Bd5 Rcc7 Bc6 Bd5 Qa6+
1n4qQ/K2Q1bb1/3r1nNR/p2bpBQ1/1r1BBRnr/8/1N1N4/n2rR1k1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 g4+ Kg6 c5 e5 g5 Kf5 g6 d5 b6 h5 c6 d3 Kc3 e3 c7 Ke4 f5 d4+ Kc4 d2 Kb5 d3 g7 e2 b7 Ke3 Kb6 Kf2 b5 e1N f6 h3 f7 h4 Ne2 h2 Nec3 h3 Na4 Nc2 Nb2 Ne3 Ra3 Nh6 g8Q Be6 Bg2 Nhg4 Be4 Nc2 Qg5 Bg7 f8N Na1 Ng6 Qg8 c8B Bf7 Bcf5 Nf6 Qa4 d1N Nd2 Ne3 Qd4 Rh7 Qd7 Rh6 Ra4 Rh4 Re1 Neg4 Re3 h1B Rb4 Na6 b8Q h2 Qbd8 Rb8+ Ka7 Kg1 b6 Bf3 b7 h1R Qf8 Rd8 b8R R1h2 R8b6 Nb8 Qc7 Rd6 Qd7 Qh7 Qh8 Qg8 Na4 Rf2 Bb2 Rf1 Rc4 Rb1 Bd4 Rb4 Nb2 Bh1 Nb3 d2 Rbc6 d1R Nd2 Bd5 Bg2 Nh7 Nf4 Rf6 Bc3 Bf3 Rce4 Be2 Bd4 Bc4 Ra6 Bf7 Rb6 Rd6 Bf3 Rd5 Rh6 Rd6 Ng6 Bg2 Rf4 Nhf6 Bc6 Bgd5 Ba8 Bde6 Bae4 Bd5 Re1+
1R6/RR3N1r/4rbp1/3r1qk1/3n1n2/2p3q1/KBQNpBN1/Q1qbnBQ1 b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 f4 Kf7 h4 Kg6 b4 a5 d4 c5 Kd2 e5 Kc3 e3 Kb2 c3+ Ka2 c4 d5 e2 b6 e1N d6 c2 b5 e4 b7 e3 d7 c3 b6 g3 Bb2 c1Q Nf3 g2 Nbd2 Qf6 d8Q g1Q Qc2+ Qf5 Qd4 Nc6 b8Q a4 b7 a3 Qba7 Rh7 b8R Be7 h5+ Kh6 Qda4 g6 Nh4 Bf6 Ng2 Nge7 Q4d4 e2 Qda4 Qh2 Qg1 Nd5 Rb7 Bd7 Qaa7 Qe6 f5 Kg5 h6 Qg3 Rh4 Rd8 Rhb4 Nd4 Rb8 Re7 h7 Ba4 h8N Rh7 R4b7 Qc8 Qa6 Nf4 Qa7 Rd5 Qa8 Be5 f6 Qf5 f7 Bg7 f8B Bf6 Qb1 Bc2 Bc5 Bd1 Qc2 Nc6 Kb3 a2 Bf2 Nd4+ Ka3 Kh6 Nf7+ Kh5 Ra7 Kg4 Rb1 a1R+ Kb4 Raa5 Rbb7 Rab5+ Ka3 Rb6 Ka2 Re6 Rb8 Rd7 Ba1 Rdd6 R1b7 Rd5 Bb2 Rb6 Ra5 Nb5 Kb3 Re6 Ra1 Kh5 Qa2 Kg4 Qb1 Kh5 Raa7 Nd4+ Ka2 Kg4 Qa1 Kh5 Nh6 Kg5 Nf7+
r2k2bB/b1N1qb1n/2p5/N1n2Q1Q/1b4b1/2B1p2R/1NKRp1R1/rr1B3Q b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 a5 f4 h5 d4 e5 Kd2 a4 b4 h3 g5 e3+ Kc2 e2 d5 h4 b6 e4 f5 a3 d6 h2 b5 h3 g6 a2 f6 c6 g7 Rh7 d7+ Kf7 b7 Ra6 b6 Ne7 g8R Ra7 Nd2 Rg7 Nb3 Ra8 Na5 Ng6 Bd2 Qe7 d8N+ Ke8 Bc3 Nd7 b8B Nc5 b7 Bg4 Bbe5 Rh7 Rb1 a1R b8Q Rh5 Rg7 Rf5 Bg2 Rf1 Rb2 Re1 Qd5 Reb1 Qb5 e3 Qe4 Kd7 Ne6 Ke8 Nc7+ Kd8 Be1 c3 f7 Bf5 Nf3 Bg4 Rh7 Bg7 Nd2 Nf8 Rg1 h1B Ndc4 h2 Rh3 Nh7 Bf3 Bf8 Bh8 Bg7 Ra2 Bd4 Nb2 Bg2 Qf5 h1B Be4 B2f3 Bd3 Bd5 Rg2 Be6 Bc4 Bd5 Bb3 Bc4 Rgh2 Bhd5 Rg2 Be6 Qf1 Bcd5 Qh1 Bc4 Ne8 Bed5 f8Q Bg8 Qf6 Bcf7 Ba4 Nb7 Qf3 Ba7 Qh5 Nc5 Nc7 Na6 Kd3 c2 Qff5 c1B Bd1 Bd2 Kc2 Bb4 Bec3 Nc5 Ra4 Ba3 Re4 Bb4 Rd4+ Qd7 Rd2 Qd6 Bhd4 Qe7 Bh8+
bR3brq/2R2r1p/3b2p1/N1QB2N1/B3Qpk1/bK1b1Q1n/2nNR2n/4B3 b - - 0 1 illegal: No proof kernel
1b5Q/2pkR1bb/3q2bB/4Q1nR/rpN1n1R1/N2rBB2/p1N2nQ1/4Kb2 b - - 0 1 illegal: No proof kernel
1q1qn2q/1B2q1N1/R1Q1p1p1/1RN2r2/3b2p1/Bq1rNQ2/2bQ1K2/1nB2R1k b - - 0 1 illegal: No possible last move
Q1n1q3/bn1B2rq/1R3NN1/QQ1p2p1/2N1r2B/4BRRn/1p3b1K/2k2bn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 Kf7 a4 Kf6 c4 Ke5 f4+ Ke4 Kf2 d5 Kg3 b5 h5 e5 a5 d3 f6 g6 c5 d2 f7 Ke3 h6 e4 h7 b3 f5 b4 a6 b2 c6 b3 a7 Bc5 f8B Ne7 f6 Rg8 h8N Na6 c7 Rg7 f7 Qe8 Nc3 b1Q Rh3 b2 Bb5 g5 Nf3 Rb8 a8Q Ba7 Qa4 Nc5 Bd7 Ba6 c8Q Bf1 Qc7 Nb7 Ng6 Nc8 Bc5+ Kd3 f8R d1N Bf2 e3 Nd2 e2 Qac4+ Kc2 Kh2 e1B Bh4 Nf2 Rg3 Nh3 Qa5 Bef2 Nce4+ Kd1 Nf6 Qbe4 Ne7 Qh7 Qcb5 Kc2 Ng6 Kd1 Raa3 Kc2 Rgb3 g3+ Kh1 g2+ Kh2 g1N Nc4 Kd1 Rg3 Kc2 Be3 Kd1 Bc5 Kc1 Rab3 Nd8 Rf7 Rb6 Rbf3 Nb7 Bd4 Re6 Be3+ Kb1 Re7 Re4 Re6 Kc2 Rb6 Kb1 Bd4 Kc1 Be3+
q6q/k2Q1Q1b/3r1B1b/2p2pBK/6N1/rRQbn3/2NNbqpn/1R1BR3 b - - 0 1 illegal: No possible last move, all moves rejected
n2Q4/2q1Nb1K/p2rBQ2/nqR1N1bk/1pRqr1B1/4QR2/p2B4/qn5N b - - 0 1 illegal: No proof kernel
2QrrnR1/6Bp/b1NRppB1/4B3/1QQ2b1k/6q1/NK1R2bq/2N1r1nr b - - 0 1 illegal: No proof kernel
1bBN2kR/2p5/2Rr3p/Q3n2r/1Q3B1q/K1N2qbb/nQ1p1R2/B3bN1r b - - 0 1 illegal: No proof kernel
k1N3b1/2p2pr1/1BK1Q2r/2Rnp1qr/n2bN3/4R1qr/4R3/q1QBNQB1 b - - 0 1 illegal: No proof kernel
Bq4R1/R1Q2nB1/1b1Qp1k1/q3Nnnr/r7/1ppb1Rq1/QN1B1pN1/3K4 b - - 0 1 illegal: No proof kernel
q3R1Nn/R1r3bB/1r4bQ/1r2r1p1/1p2R2Q/1np3N1/KBNkp2B/Q6r b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 h4 Kd7 d4 Kd6 Kd2 e5 Kc2 g5 Kb3 b5 a4 c5 f4 g3 a5 g2 f5 c4+ Ka2 c3 f6 e3 h5 e2 a6 e1R h6 e4 h7 e3 a7 Nc6 f7 Qa5+ Na3 Qb6 Nc2 Bf5 Rh4 Qb8 Bd3 Bg7 f8Q+ Nge7 Ne2 g1R Ng3 Bg6 Re4 Na5 Bb2 Rh1 Qf2 Re8 h8Q e2 Qh6 Nb3 Qfh2 Ref1 Q2h4 Rf7 Qe1 Qd8 Qc1 Rb8 a8R Rb6 Qd1 Kc7 d6+ Kc6 d5+ Kc5 d7 Qc8 Ra7 Qa8 d6 Kd5 d8B Kc5 Nd4 Kd5 Qf1 Kc5 Bb1 Kc4 Nc2+ Kd3 d7 Kd2 Bc7 Nc8 d8N Re5 Bb8 Nd6 Qg1 Rc7 Nc6 Nf7 Ne7 Nh8 Ng8 Ree6 Ne1 Na5 Rb7 b3+ Ka3 Rc5 Rb4 Re4 Nh5 Rf5 Re7 Rf8 Bh2 Be8 Ng3 Re5 Bh7 Bg6 Re8 Rf7 Re4 Rfe7 Ra2 Rc7 Ba1+ b2 Nc2 b1R Qf1 Rb4 Qg1 Qb7 Bb2 Nb3 Ra1 Qc8 Ka2 Qa8+ Kb1 Rbc4 Ra4 b4 Ka2 R4c5 Ra7 Rcb5 Qa1
r2q1bQ1/k3n1r1/3nN1R1/3B2q1/b1Bp1pp1/1R1p2nQ/1NRB4/4KNnQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 Kd7 e5 Kc7 c5 Kb7 c6+ Ka7 e6 f5 e7 g3 e8B g4 h5 g2 h6 f3 h7 f4 c7 a4 b6+ Kb7 b5 a3 Bd2 a2 Nh3 g1N Bf7 Bb4 Rh2 Be6 c8N Ne2 Ng5 Nc6 Nd6+ Kb8 b7 Nce7 Nc4 Ka7 b8R Nh6 Nb2 Rg8 h8Q Bd7 Ne6 Nhf5 Qh3 Ng1 Bc4 d3 Rg2 d4 Bd5 Rg7 b6+ Ka6 b7 Nd6 Rh2 Ba4 Qc1 Qa5 Rg8 Ba3 b8Q Qd8 Qbc8+ Ka7 Rf2 Rh7 Rg6 Rg7 Qd1 Qb6 Qg8 Qd8 Bc3 Bc5 Rc2 Bb4 Nd2 f2+ Kf1 Bc5 Rb1 a1Q Qdf3 Qa2 Qfh1 Bb4 Nd1 Qc4 Rb3 Qc5 Nb2 Ba3 Nf3 Qca5 Bd2 Qb5 Bc4 Qg5 Nh2 Bb4 Nc5 Ba3 Bfd5 Bb4 Ne6 Bc5 Kg2 f1N Kf2 Ng3 Nf1 Nb5 Nf8 Nef5 Nd7 Bf8 Ke1 Nbd6 Nc5 Ne7 Ne6
2Rn3B/5b1b/3kq1Q1/1N2bq1q/rR6/3br1NN/NBB1R2K/3Nr2n b - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 c5 c4 cxb4 cxd5 g5 h4 gxh4 axb5 a6 Qf3 axb5 Qg4 Bb7 Qd1 Bc8 d4 Kd7 f4 h5 Kf2 e5 g4 e4 Kg2 b3 g5 h3+ Kh2 e3 f6 h4 f7 b2 g6 b4 d6 e2 g7 e1Q f5 b3 f6 Qe3 d5 Na6 Ra4 Qc3 Qd3 Qc6 Qg6 Nb4 Bd3 Qa5 Nc3 b1B Nd1 b2 Bc2 Nd3 Rb4 Ne7 g8N Nf2 Nh6 Bg7 Nf5 Re8 f8R Ra6 f7 Be5+ Ng3 Ra7 Bb3 Bd3 Bc2 b1B Bb2 Bca6 Rh8 Bac4 f8B Qac5 Bg7 Ra4 Rf8 Qa6 Bh8 Nc6 Rg8 Re7 Rc8 Nd8 Ne2 Bb3 Re1 Nh1 Nc1 Qac4 Re3 Qg4 Re2 Qe6 Rg2 Qf2 Na2 Qff5 Re2 Rg7 Qh6 Rg4 Qf6 Re4 Qg6 Re3 Qh7+ Ke8 d7+ Kf8 Qg6 Ke7 Bf6+ Kd6 Bh8 Nb7 d8N Bbc4 Nc6 Nd8 Kg1 h2+ Kg2 Bb5 Nd4 Be8 Nf3 Bf7 Ng1 Nf2 Nh3 h1R Qg7 Re1 Kh2 Nh1 Qg6 Ke7 d6+ Kd7 Rcb8 Kc6 d7 Kd6 Nhf2 h3 Rc8 Qg5 Ndc3 Qf4 Nfd1 Qf5 Nb5+ Ke7 Qh5 Qfg6 Bc1 Be4 Nf2 Nb7 Bb3 Bbd3 Nd1 Nf2 Bb2 Qg5 Qh6 Bh7 Bc2 Qgf6 Qg6 Qff5 Nbc3 Kd6 d8N Qef6 Ne6 Nd8 Nf4 Q5e6 Nf1 Qff5 Kg1 h2+ Kg2 Re4 Kg3 h1Q Nb5+ Ke7 Rc3 Qhh5 Rc8 Nh1+ Kg2 Kd7 Ng3 Re3 Nh3 Ke7 Kh2 Kd7 Nd4 Kd6 Nb5+
3q2n1/KQr1RR1n/8/n4b1N/N4rnb/4Rp2/qR2R1BN/B1n3kB b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 g4 h5 gxh5 a5 a3 axb4 a4 c6 axb5 cxb5 Kf2 Kd7 h4 Kd6 e4 Ke5 d4+ Kd6 h6 g5 e5+ Kc7 d6+ Kb6 e6 f5 e7 b3 e8B b4 d7 b2 d5 Kc5 d6 g4 h5 b3 h7 f3 Ke3 f2 h6 g3 Ra7 g2 Rh2 Qh4 d8N Be7 d7 Qf6 Nc3 b1Q Bb2 Qa2 Qb1 Nc6 Nf3 g1N Bg2 Na5 Ba1 b2 Na4+ Kd5 Rb7 Ne2 Ne6 Nc1 Ng7 Ra7 d8R+ Bd7 Rbb8 Rc7 Nh5 Qf8 Rb7 Bh4 Rdb8 Bc8 Bd7 Qd8 Bc6+ Kc4 Rh3 f4+ Ke4 f1N Nh2 Be6 Re3 Bc8 Re2 Ne3 Ke5 Bd7 Kd6 Kd4 Rb3 Ng4 Rbe3 Qc8 Bh1 Bf5 Bcg2 f3 Rb5 Qa8 Rbe5 Qb8 Re7 Qa8 Qc2 Qe8 Qc6 Qd8+ Qd7 Rc3 Rf7 b1N Rb2 Nd2 Rfe7 Qc8 Qb7 Rc4 Re2 Kd3 Rf7 Rf4 Rfe7 Qf8 Kc7 Ne4 Kb6 Qd8+ Ka7 Ng5 Rf7 N8f6 Rfe7 Rg8 h8R Rg7 Rg8 Ngh7 Rf8 Kd4 R7e3 Rc7 Rf7 Ng8 Ree7 Nf8 h7 Kd3 h8R Nh7 Rec2 Kd4 Rd7+ Ke3 Rcd2 Ne2 Rde7+ Kf2 Rd3 Kg1 Rde3 Nc1 Ree2 N8h6 Rhe8 Ng8 R7e3 Qa3 R8e6 Qa2 Ree7
bBn2b2/r5Q1/BqknNR2/1pq3Bp/3b2Np/3NR1B1/R2K4/6nB b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 a4 bxa3 d4 c5 h4 gxh4 Bd2 b5 Bf4 c4 Bc1 Ra7 Kd2 Rc7 Ke1 Rc5 dxc5 Bg7 Rh2 Bh6 Rh1 Bf8 g4 Kd7 f4 e5 f6 h5 g5 a2 d6 c3 f5 e4 g6 e3 f7 c2 g7 e2 f6 Qe8 c6+ Kd8 c7+ Kd7 Nd2 Na6 Bg2 Qe6 Ndf3 Qe3 Nh3 Qh6 Nhg5 Bb7 c8B+ Kc6 d7 Nb4 d8B Ba8 Bf4 c1N Qd4 Bd6 f8B Na6 f7 Qe6 Bg3 Ne7 g8N Ba3 Nf6 Qf5 Kd2 Rh7 Re1 Qc5 Ng4 Nc7 Bh1 Ne8 Qg7 Nd6 Ba6 Nec8 Ne6 Qb6 Bg5 Qc5 Rb1 a1B Rb2 Qb6 Ra2 Bd4 Bfe7 Bac5 f8R Ba3 Qg8 Bac5 Bd8 Ra7 Bc7 Ba3 Bb8 Bac5 Rg1 Ba3 Qg7 e1Q+ Kc2 Qe4+ Kd2 Qd5 Ne1 Ne2 Nd3 Bac5 Re1 Ng1 Rf3 Ba3 Ree3 Qdc5 Qg6 Bab2 Qf7 Bg7 Qf6 Bf8 Qg7 Bd4 Rf6+
1R3B2/Rqp1B1B1/1p2N2b/b6p/1pR5/1q1nR2K/1RQ1b3/kN1q1Nq1 b - - 0 1 legal: proof: c4 d5 e4 dxc4 f4 e5 b4 h5 d4 a5 d5 axb4 d6 Ra5 Bb2 Rb5 Bc1 Rd5 exd5 e4 Be2 g6 Bg4 Rh6 Bf5 gxf5 Nd2 Re6 Nb1 Re5 fxe5 Bg7 Bf4 Bh6 Bc1 Bf8 h4 Nd7 g4 Nb6 g5 Nd7 g6 Ndf6 Kf1 Nh7 Ke1 Ng5 hxg5 Qd7 Rh3 Qe7 Rh1 Qd8 Kf1 Kd7 Kg2 c3 a4 f4 g7 f5 a5 e3 g6 e2 a6 e1B a7 c2 a8R f3+ Kh3 f2 R1a7 f4 Ne2 f3 Rb8 Nh6 g8R Ng4 Ng3 Bh6 Bb2 c1Q g7 Qc4 Qc2 Qb3 Rh2 f1Q+ Rg2 f2 Re8 Qf6 g8R Qg1 Bc3 Bed2 Nf1 Bde3 Rgf8 Qg7 Rf4 Bb6 Rc4 Ba5 Rh2 b6 Re7+ Kd8 e6 Ne5 d7 Nd3 Rg2 Qf8 Bg7 Qf4 Rg3 Qd6 Re3 Qc6 Rf7 Qa8 Rf5 Ke7 d8B+ Kd6 e7 Ba6 e8N+ Kd7 d6 Qb7 Bdf6 Bb5 Be5 Ke6 d7 Kd5 d8B Ba6 Bf8 Bb5 Nfd2 Qd1 Rg5 f1Q+ Rg2 Qg1 Bde7 Ba6 Bb2 Bb5 Nf1 Ba6 Rc3 Kd4 Ng7 Nc5 Qc1 Bd3 Rgc2 Be2 Rd2+ Nd3 Rcc2+ Qc3 Ne6+ Kc4 Ba1 Kb3 Bb2 Qc4 Bbg7 Qcd5 Rc5 Qc4 Rc6 Qcc2 Rc5 Ka2 Rc4 Qb2 Qc3 Ka1 Qc1 Qc3 Rb2 Qcb3 Qc2
qRBR1KQ1/2q3R1/6NB/n1r1p3/N2r2b1/Bq5N/1n2q2B/qrkB2b1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 h5 Kg6 c5 Kf7 e5 f4 e3 d6 h3 d7 b3 g5 h4 b6 b2 b7 h2 g6 e2 g7 Kd3 f5 c4 f6 h3 Qb3+ c3 Ra7 Ne7 g8B Na6 b8B Nc5 Bd6 Na4 Ba3 Qc7 d8B Rh4 Ke8 Rb8 f7 Nc6 Bg5 Rd4 Bf4 Bd6 f8N Na5 Be6 Bc5 Ng6 Rb5 Bg2 e1Q Bf3 Qe2 Qd5 c2 Nc3 Bb6 Kf8 b1R Qb3 Qc4 Rg7 Nb2 Na4+ Qc3 Beg4 Rc5 Qg8 Qb3 Bb7 Be6 Bc8 Bf5 Bf3 Bg4 Bh6 Qe4 Bd1 Qe2 Nf3 Ba7 Ng5 Bb6 Rf1 h1Q Re1 h2 Nh3 Qhg2 Bf4 h1Q Bh2 Qa8 Rf1 Qeg2 Rff7 Qe2 Rb7 Qc6 Rb8 Qd7 Qd5 Qc7 Qg8 Ke4 d3+ Kf3 Bh6 c1Q Nhf4 Kf2 Nh3+ Ke1 Bb4+ Qcc3 Ba3 Rdc4 d4 Rb4 d5 Rd4 Nhf4 Kd2 d6 Kc1 d7 Qcb4 Nc3 Q4a4 d8R Ba7 Bb4 Qa1 Ba3 Bb6 Na4 Rb5 Qd5 Rdb4 Ne7 Bg1 Neg6 Rd4 Qg8 Rc5 Nh3+
1RK3Q1/Br2R2b/1b1q1RB1/7b/Bn3kNN/bn6/1p2qrrR/1q3NR1 b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 c5+ Ke4 e5 g4 h5 d4 b4 f6 h3 g5 h2 f7 a2 g6 h4 f5 b3 f6 h3 g7 b2 Bd3 c4 Bf4 c3 Nf3 c2 Be3 c1B Qg1 Ne7 g8B Bg4 Nbd2 Nd7 Nf1 Rh7 Nh4 Nc6 Bf2 Bd1 Kf5 e4 Qg5 Be7 f8R e3 f7 e2 Re8 e1Q f8R Nc5 Qg7 Bh5 Rf6+ Ne6 Bb5 Be3 Bf7 Qe2 Ba4 Nb4 Bg6 Ra7 Rg1 h1R Qg8 h2 Rd1 a1Q Rd2 Bf8 Re7 Rb7 Rc2 Qc1 Rd2 Qd7 Rc2 Rf7 Rd2 Kc7 Ke5 Nc5 d6+ Kb6 d5 Qb1 Rc2 Nb3 Rd2 Qc6 d7 Kc5 d8R Kc4 d6 Bb6+ Be3 Kc3 Ke6 Kc4 Rg5 Rg1 Rb8 h1B Rg3 Qc7 d7 Be4 d8N Rg2 Nc6 Kc3 Rc2+ Kd3 Rg5 Qf4 Bg1 Qfd2 Kd6 Bf5 Ne5+ Ke4+ Bd4 Kf4 Rg3 Rg7 Ng4 Rf2 Rg1 Kg5 Bf7 Bh7 Bg6 Qdd3 Rc7 Qg3+ Kd7 Qge5 Kc8 Qd6 Rfe6 Kf4 Rc2 Bd8 Ba7 Bb6 Bf5 Rg6 Rf6 Rg5 Ne5 Rg3 Ng4 Rgg2 Bg6+ Kg5 Rc1 Nd5 Rh1 Qg3 Ree6 Qf4 Nd2 Ba3 Re7 Nb4 Rh2 Qg3 Rg1 Qd6 Nf5 Kf4 Nf1 Qbd3 Nh4+ Qf5+ Rfe6 Qb1 Rf6+
3q3r/2q2nR1/RrQr1n2/Bb2r3/6R1/B1r1NRK1/kpBN3r/4rNR1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 a4 Ke7 e4 Kd6 d4 b5 g6 f5 a5 c5 g7 h5 a6 g2 Kf2 g3+ Kf3 f4 a7 h4 Ra5 h3 Ra4 c4 Na3 b3 Rh2 b2 Qc2 b1R Be2 b4 Bd3 b3 Rh1 c3 Ne2 h2 Rg1 Nf6 g8R h1R Rg7 Bd7 Rb4 Rb2 Nb1 R1h2 Nd2 Bb5 Ra4 Nbd7 e5+ Kc7 e6 Kb6 d6 Rc8 d5 Kc5 Ra3 Kb4 e7 Rc6 e8N Rb1 Qd1 c2 a8R Rc3 Nc7 Rb2 R8a7 Rb1 Bb2 c1Q R7a6 Qc2 Qf1 Re1 Qf2 Rd1 Qb6 Qc1 Re1 g1R Qc6 g2 Ng3 Ne5+ Kf2 f3 d7 Nf7 d6 Rgh1 Ngf1 R2h5 Bh7 R1h2 Bc2 Re5 Kg3 g1R+ Kf4 Qg8 d8R f2 d7 Rg6 Re8 Qf8 d8B Qd6 Reg8 Rgh6 Ne3 f1R+ Kg3 Rfh1 Rf1 Qf8 Rf3 Rhe1 Nef1 Qe7 Ra1 Qe8 Ne4 Rd6 Rg4 Qd7 R8g7 Qd1 Bc1 Qd4 Ned2 b2 Be7 Qd8 Bf8 Qc4 Rb1 Ba4 Nd5+ Ka3 Nde3 Ka2 Be7 Rde6 Ba3 Rd6 Ne4 Bb5 Bd2 Rcd3 Ba5 Rc3 Qb6 Qcc7 Ned2 Ree6 Rd1 R6h5 Qb7 Rhe5 Rc1 Rb6 Qc6 Rd6 Rd1 Ree2 Re1 R2h4 Nh2 R4h5 Ref1 Re1 Rg1 R5h6 Nhf1 Rh1 Bh7 Rh2 Bc2
3q2bq/2r3rn/pRn2rn1/2N2qNQ/3BBR2/nq2N1R1/1RB3K1/2kR4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 b4 Ke7 e4 Ke6 c4 Ke5 g6 f5 g7 d5 b6 h5 c5 f4 c6 h4 b7 d3 c7 Kd4 b5 a6 b6 d2+ Ke2 g2 Kf2 h3 e5 f3 e6 h2 e7 Rh6 e8N Rf6 Qc2 d1N+ Kg3 f2 Qb2+ Nc3 Nd6 Ne7 g8R Ra7 Nd2 Ke3 Qb1 d4 Qc2 d3 N2e4+ d2 Bd3 f1Q Qd1 Be6 c8B Nb5 Nf3 g1N Nfg5 Qf5 Bc2 Nbc6 b8R Na3 b7 Ng6 Kg2 g3 Bb2 Nh3 Qh5 d1Q Nc5 Kd2 Bd4 Bd5+ Be4 Qb3 Raf1 Bc4 Rf4 Be6 Bg1 Kc1 Nc4 Bd5 Ne3 Bf7 Nge6 Ng5 Bc2 Nh7 Ng5 Bc4 Rg7 Bg8 Be6 Qd7 Bd5 Qc7 Bde4 Qd8 Kf3 g2 Bf2+ Kb2 Ra1 g1R Rd1 Rf1 Kg2 h1Q+ Kg3 Qh4+ Kg2 Rf7 Rc8 Re7 b8R Rac7 Rb6 Rf7 Rcb8 Rf6 Rgd7 Rf7 Bg1 Rg7 R7d3 Rf3 Nd5 Rf1 Rg3 Rf3 Ne3 Rf1 Rd3 Kc1 Rd5 Rf3 Rd1+ Kb2 Qh6 Qff8 Rb5 Qb4 Rf7 Nf6 Nf1 Rf5 R8b6 Rf3 Rd2 Kc1 Bd4 Qa4 Rb2 Qb3 Ne3 Rf5 Qh5 Rf4 Qg4 Qh8 Rd3 Nh7 Qh5 Rf3 Rf4 Qff7 Rfg4 Qfd7 Rh4 Rf6 Rf4 Qf5 Rd1#
8/bnR5/prp5/2R2Q2/BNr2nbb/2qB3n/Bk1Br1NK/2N1BRr1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 exf4 e4 g5 Qf3 gxh4 Qe3 fxe3 d4 Kd7 g4 Kd6 b4 h5 b6 f5 b5 a6 b7 f4 b6 h3 g5 f3 g6 e2 Kf2 h4 g7 h2 e5+ Ke7 d6+ Ke6 d5+ Kf5 e6 Ke5 d7 Kd4 e7 h3 Kg3 f2 e8B e1B d6 Rh5 Ra5 Re5 Na3 Kc3 Nc2 Nf6 g8B Nd5 Ne3 Qf6 d8B Bg4 d7 Nf4 Ng2 Bc5 Ba2 Kc2 Bb5 Nc6 b8N Qg7 Be3 Kb2 b7 Ba7 Ne2 Rc5 Bh4 Nd8 Nc1 Qf6 Nc6 Qc3 b8R Nb7 Bg6 Rc4 Rh8 Re8 d8Q Re5 Ba4 Rb5 Rg1 h1R Bgb1 h2 Qd5 Rb6 Nb4 c6 Bd3 f1R+ Bf2 Bd2 Rc8 Re1 Qf5 Re2 Rc7 Be1 Rf1 Rg1 Rc5 h1N+ Kh2 Qa3 Rf7 Qc3 Be3 Nf2 Bd2 N2h3 Rc7 Bf2 Bf6 Be1 Bd4 Bh4 Bf2 Bf3 Bg3 Bg4 Bge1
b3bNRK/5R2/n2RNrB1/n5q1/1R2BrN1/kp3n1Q/1B3qp1/n2R2b1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 d4 d5 g4 hxg4 cxd5 c5 Qb3 cxd4 Qa4+ Nd7 Qd1 Nb8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 a4 g5 f4 b3 h4 Kb4 d6 b2 f6 g3 d7 g4 a5 d3 f5 g2 f7 d2 a6 g3 f6 Bb7 a7 Rh6 h5 Na6 Qf3 d1N Ne2 g1Q Nbc3 b1B Ne4 g2 Rh4 Ne3 Nd4 Qf2 Bb2 Nc2 Qh3 e6 Bc4 Bc5 f8N Ne7 f7 Rf6 h6 Rb8 h7 Ba8 h8R Rb6 Qd3 Rf4 Nf6 Ba2 Rc1 Na1 Ng4 Ka4 Rd1 b4 Qh7 b3 Qf5 Bb1 Kf6 e5+ Kg7 e4 Rg8 e3 Nde6 e2 Bd3 e1N Kh8 Nc6 Bc2 Qe7 d8R Qg5 R8d6 Nf3 Qh7 Na5 Bg6 Bbe4 Qh5 Bac6 a8B Be8 Qh6 Bd3 Bae4 Bdb5 Nd7 Bc6 f8R Ba8 Rf7 Kb4 Ndf8 Ka4 Be5 Ka3 Bb2+ Kb4 Bc6 Rf6 Nc7 Rb5 Bd5 Qc2 Nce6 Bg1 Bb7 Ka4 Nf2+ Rb4 Rf4 Qd2 Ng4 Qf2 Qh3 Re4 Rf5 Rf4 Be4 Kb4 Rb5+ Ka4 Bd4 Ka3 Rb4 Qc5 Bc3 Qg5 Bb2+
R1r1n1N1/kB1B1Rb1/2q5/KQqp1B2/b2nB3/N3b1n1/NpRBb3/3r4 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 h4 f5 exf5 g5 a3 bxa3 hxg5 Bg7 Bd3 Bh6 Bf1 Bf8 Kd2 h5 g4 e5 f4 d5 c4 Kd7 f6 Kc6 f7 Kb6 f5 d3 Kc3 h4 g6 d2 g5 a2 g7 e4 c5+ Ka7 Kb4 b5 f6 h3 g6 h2 Bg2 e3 Qf1 d1Q Be4 e2 Na3 e1B+ Bd2 Bg3 Ne2 Qc2 Nc3 Bf2 Rb1 a1N Na2 Qd7 Ka5 b4 c6 b3 c7 Be3 Qb5 Ne7 g8B Bg7 f8R Na6 f7 Qdc6 Bh7 Bd7 c8B Nf5 Bb7 Q2c5 Rhc1 h1B Rc2 Ng3 Rf1 b2 Rb8 Nc7 f8N Be8 Nd7 Bf3 Nf6 Be2 Ng8 Bd7 Rf7 Nb3+ Ka4 Nd4 Ka5 Ne8 Bf5 Be5 g7 Bf6 Bhg6 Rh1 Be4 Rd1 Bgf5 Q5d6 Nh6 Qcc5 g8B Bg7 Bgh7 Bc6 Bd7 Qf6 Bhf5 Qg6 Rd8 Rc8 Ng8 Qf8 Qd3 Ba4 Qb3 Qc5+ Qb5 Rc7 Rc8 Qgc6 Rb8 Rc8 Ra8+
1KNbB3/pN2rb1n/RRB2N2/n6r/n2B1k1n/2Q1br1p/1BR4n/B7 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 g4 Bf1 Qg5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 h5 b4 f5 b6 d5+ Kb5 g2 c4 f4 c5 g3 g6 h4 g7 d3 b7 f3 c6 d2 c7 h3 Rh2 d4 Bb2 f2 Qc1 d1N Ne2 g1B Na3 g2 Nc3 d3 Nd5+ Kd6 e5+ Ke6 Nf6 Kf5 e6 d2 e7 Nd7 Ka6 Kf4 e8B Ne7 g8R Rh5 b5 Nc3 b6 Na4 Bb5 f1N Rg6 Nc6 Qc3 d1R Nc4 Be7 Nd6 Na5 Bc6 Nf8 Rb1 Bd7 b8B Bd8 c8N Be3 b7 g1N Rc2 Re1 Ba1 Nf3 Rb6 Nh7 Bc7 Rh6 b8B N1h2 Bb2 Rh5 Nb7+ Ne5 Bd6 Be6 Bc5 Bf7 Bd4 Rf1 Bd6 Rf3 Bda3 Rb8 Ba1 Ra8 Rh6 Ng6 B3b2 Nh4 Bd5 Rf5 Nh5+ Kg4 Bd7 Nc6 Ncd6 Bf2 Rb3 Nf6 Nc5 Ba5 Kb7 Re8 Nc8 Nh7 Be4 Re5 Be8 Bd8 Rf6 Na5+ Kb8 Be3 Ra6 Kg5 Rbb6 Re7 Nf6 Kf4 B4c6 Rh5 Nb7
1R3K2/pr3RBB/b3N1B1/1QpqN2q/p1b4q/2Nr4/R3nN2/1nN3rk b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 bxa4 h4 exf4 g3 g5 Ra2 Bh6 Ra3 g4 Ra1 Bg5 hxg5 fxg3 d4 Kd7 Kd2 Kd6 Ke3 h5 Ke4 c5 b4 f6 b5 g2 b6 g3 g6 h4 b7 h3 g7 h2 Qb3 Rh5 Nc3 Rh3 Qb5 Qc7 Bb2 Bg4 Ra2 Nc6 b8R Nge7 g8N Be6 Nh6 Qb7 Ng4 f5+ Kf4 Rh7 Kg5 f4 Kf6 f3 e4 f2 Nge2 g1Q Nc1 g2 Bd3 Qd1 Rf1 h1Q Ba1 Rh3 Kg7 g1R Kf8 Bc8 Bb1 Rd3 Bc2 Qh4 e5+ Kd7 d6 Ke6 d5+ Kf5 d7 Kf4 d8N Kg3 d6 Kg2 e6 Nd4 d7 Ne2 Nc6 Nd5 d8N Kh1 e7 Be6 Rc8 Rb8 e8B Qa8 Bb2 Rb7 Bg6 Bf7 Nce5 Bg8 Re1 f1B Rb8 Bf7 Ne6 Bg8 Ne4 Ndc3 Ba1 Nb1 Nc3 Ng3 Re4 Ne2 Rf4 Bf7 Ng5 Bc4 Rf7 Rf3 Ne6 Rd3 Re8 Qad8 Bh7 Qd5 Rb8 Qde1 Bg6 Qh5 Bh7 Qeh4 Bb2 Rd2 Bcg6 Rd3 Nf2+ Kg2 Rf5 Rh3 Neg4 Ng3 Rf7 Bb3 Qb4 Ba6 Nce4 Ne2 Qb5 Rd3 Bg7 Bc4 Ne5 Kh2 Nc3 Kg2 Nfg4 Kh1 Nf2+
1b5b/4R2K/QR1b3N/rR3n1n/4n1k1/N2p1bpq/1N1B1B1p/RB4Rr b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 Qb6 Bh6 Qc7 Bc1 Qd8 h4 f5 exf5 g5 g3 gxh4 Qe2 hxg3 Qf3 Nf6 Qd1 Ng8 Ke2 Kf7 Kd3 Kf6 Ke4 h5 f4 e5 c4 a5 b4 a4 c5 a3 b6 d3 b5 d6 c6 a2 b7 d2 b6 h4 c7 h3 Nf3 h2 Qe2 d1N Nh4 Nh6 Rg1 Qe7 Na3 Ra5 Qa6 Nd7 b8R Qh7 b7 Be7 Bh3 Rf8 Bd2 Bd8 Bf1 Rf7 Bd3 Nf2+ Kf3 Re7 Bb1 e4+ Ke3 Re6 Kd4 d5 Ke3 Ke7 f6+ Kf7 f5 d4+ Kf4 e3 Kg5 e2 Kh5 e1B Kg5 d3 Kh5 Kg8 f7+ Kg7 f8B+ Kf6 Bc5 Ne4 Bf2 Ke5 f6 Nf5+ Bh6 Bc3 f7 Bb4 f8R Bd6 Re8 Bf6 Re7 Bh8 Nf3+ Kf6 Ng5 Ree5 Nf7 Rec5 Ra8 Rc1 b8R Bb7 c8N Bc6 Rb5 Bd5 Rg2 Rh1 Nb6 Bb7 Na4 Bc6 Bc2 Bb7 Rag1 a1B Bb1 Be5 Nb2 Bc6 Ra7 Bb8 Rab7 Bed6 R7b6 Ba8 Rf1 Bb7 Rgg1 Bc6 Kg4 Bb7 Bd2 Qh3+ Kf3 Kg6 Nh6 Ndf6 Rd1 Nh5 Rde1 Qf1 Kg4 Kf6 Rc1 Bd5 Rd1 Qh3+ Kf3 Bg8 Ba2 Bd5 Ra1 Bb3 Bb1 Bc2 Bc3+ Kg5 Bce1 Kh4 Bd2 Nfg7 Ke3 Bd1 Kd4 Be2 Kd5 Nf5 Ke6 Bf3 Kf7 Bd4 Kg8 Bh8 Bc3 Kg5 Kh7 Kf4 Bb4 Kg5 Bd2+ Kh4 Nf7 Kg4 Nh6+
2N1q1bn/1B1n4/nRp1N1r1/1Q1N1n1k/1B3KRp/3N2RB/p5N1/3bq2b b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 c5 exf4 c6 f3 Ra2 dxc6 Ra3 c5 Ra1 c4 h3 a5 Ra2 g5 Ra3 f4 Ra1 Bh6 h4 Ra6 Rh3 Rf6 Rh1 Rf5 gxf5 g4 Na3 Qd4 Nb1 Bg5 hxg5 Qd8 Kf2 Kf7 e4 h5 d4 c3 b4 c2 e5 h4 g6+ Kg7 d5 Kh6 e6 a3 b5 a4 e7 a2 e8B a3 g7 Qd7 d6 Qc6 d7 Ne7 d8N Ng6 g8N+ Kh5 b6 Bb7 f6 Rh6 f7 Nd7 Bh3 Nh8 f8N+ Rg6 Bd2 c1N Qb3 Ne2 Nc3 Ng3 Nd5 Nf5 Nf7 Qb5 Rd1 a1N Bb4 a2 Rd3 Nc2 Ne5 Qa4 Nge7 g3+ Kf1 g2+ Kf2 Bc6 b7 Qa8 Bf7 Qe8 b8R Ba4 Be6 c6 Qb2 Bb3 Ne2 Bc4 Rg1 Bb3 Ba3 Nb4 Nc8 Na6 Bb4 Bc2 Rb6 Bd1 Ke1 f2+ Kd2 f1B Rg3 f3 Nd3 f2 Nef4+ Kh6 Rg4 Bfe2 Qb3 f1B Qa4 Bb3 Qb5 Bed1 Rg3 Bfe2 Rg4 Bf3 Rg3 Nd6 Ke3 Be4 Bef5 Bc4 N8e6 Bef3 Rf1 g1Q+ Rf2 Be4 Ng2 Kh5 Kf4 Qe1 Rff3 Bcb3 Rg4 Bc4 Rfg3 Bef3 Nge3 Bh1 Ng2 Bcb3 Nd8 Nf8 Bd7 Nf5 Ne6 Bc4 Na7 Bcb3 Bc8 Nd7 Bb7 Bc4 Nc8 Bcb3 Nc3 Bc4 Nd4 Be6 Nd5 Bg8 Ne6
r3q2R/p2Qq2B/2B2B2/3r1p1r/b1KBNr1r/2nr2BR/N2p2k1/1RN5 b - - 0 1 legal: proof: d4 b5 h4 f5 g4 e5 f4 c5 a4 cxd4 g5 bxa4 Bh3 Be7 Bg2 exf4 Bf1 Bf6 gxf6 g5 Kf2 g4 Be3 Na6 Ke1 Nc5 Bd2 Ne4 Bc1 Ng5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 Kd2 Kf7 Kd3 Kg6 b4 d5 c4 h5 e4 g3 f7 a3 f8B h4 c5 g2 b5 h3 c6 h2 e5 f3 e6 Kh5 b6 Kg4 e7 Kg3 e8N a2 b7 f2 g6 Bd7 g7 Rh4 c7 Ba4 b8B Nf6 g8B Qe7 Bd2 Ne4 Nf6 Nc3 Be3 Qe8 Be2 f1R c8R+ Rff4 Bf3 Qe7 Ne2+ Kh3 Na3 g1Q Nb1 Qg6 Nc1 Qge8 Ne4 Rh5 Bg7 Rhh4 Rf1 h1R Bh7 Rh2 Rh1 Rh5 Be2 Kg2 Bf6 R2h4 Rh3 Qb4 Na3 Qbe7 Rb1 a1R Nc2 Ra3 Nb4 Rb3 Nba2 Rb5 Kd2 d3 Bed4 Rb3 Ke3 d2 Bb5 Ra3 Kd3 Rb3 Bg1 d4 Kc4 d3 Bc6 Rb5 Bgd4 Rd5 Qb3 d1R Qb7 d2 Bbe5 Re1 Qd7 Re3 Rcb8 Rd3 Bc7 Q8f7 Rh8 Qfe8 Bb8 Rff3 Bh2 Rff4 Bg3
q1k4R/1qp1r3/nn2q1n1/p1R2R2/QBp3N1/1Nn1Nr2/5RK1/qBR2B2 b - - 0 1 legal: proof: f4 b5 c4 d5 a4 bxa4 g3 dxc4 Qc2 e5 Kd1 exf4 Qb3 f3 Kc2 f2 Kc3 Nd7 Qd1 Nb8 Kc2 Ba3 Nc3 Bc5 Nb1 Bf8 Ra3 g5 Ra1 f5 Ra3 g4 Ra2 f4 Ra1 f3 h3 Bh6 Nc3 Bd7 Nb1 Bf4 gxf4 g3 Na3 Nf6 Nb1 Bg4 hxg4 Ng8 d4 Kd7 Kd2 a5 Ke3 h5 b4 a3 g5 h4 g6 g2 f5 h3 b5 a2 f6 h2 d5 Rh3 g7 Na6 d6 Rc8 f7 Rh7 f8R Rh4 b6 Rd4 b7 Nb4 b8R Rd5 Nd2 Ne7 g8N Rf5 Qa4+ Nbc6 Nb3 Rg5 Ba3 Rf5 Rc1 a1N Nh6 Ng6 Rb5 Na7 Nh3 g1N Nf4 Nc2+ Ke4 Rb8 Ng4 Nb4 Ng2 Nc8 N2e3 Na6 Bb4 Nb6 Rc5+ Kc8 Rh8 Qg8 Rh5 Rf8 Rhe5 Qe6 d7+ Kb7 Rc2 Rbe8 d8R Re7 Rc1 Rff7 Rh8 Rf8 Rc2 Kc8 Rc1 Nh3 Rg1 h1Q Rg3 Nhf4 Rg2 Nfd5 Rgh2 Qc6 Rg2 Qb7 Rgh2 Rd7 Rf5 Rg7 Bh3 f1Q Rf2 Qe1 Bg2 Ne5 Bf1 Nc3+ Kf4 Re7 Kg3 Qh7 Nd5 Qg6 e4 Qe6 Nde3 Ng6 e5 Qec6 e6 Qa8 Kh2 Qcb7 Ra2 f2 Kg3 Rd7 e7 Qe2 e8B Re7 Bc6 Qe1 Be4 Qe2 Bfg2 f1Q Bb1 Qfe1+ Kh3 Qb2 Bf1 Qa1 Raf2 Qe2 Nd5 Qe6 Kg2 Qg8 Rfh5 Rf3 Rf5 Qe8 Nde3 Qg8 Rh2 Qe6 Rh8+
5K2/B2bNN2/1nRnN1bp/p3QR2/1nB1kBN1/2p3n1/6Rp/2rNr2q b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 b6 exf4 b7 Bc5 Ra2 Bd6 Ra1 Bf8 h4 g5 b4 gxh4 b5 Bc5 Qa4 Bb4 Qd1 Bf8 Nc3 a6 Nb1 Bc5 Nh3 Be3 Ng1 Ba7 b6 Qd5 bxa7 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 a5 g4 c3 g5 h6 d5 f6 g6 h3 g7 h2 Nh3 c4 Nf2 c2 Ra2 f3 Nc3 Bh3 Qd4 Rh7 Qe5+ Kc5 Ng4 f2 Kf5 Nd7 Ke6 f5 Kf7 f4 b8B f3 e4 Nb6 Nd1 Nf6 Bf4 Ne8 Kf8 c1N g8N Nd3 Ne7 Nb4 Be2 c3 Rf1 Rg7 Bc4 Qc8 Re2 Qb7 d6+ Qd5 d7 Nd6 d8N Rg6 Qg5 Kd4 e5 Qc6 Rc2 Ke4 e6 Qb7 Nf7 Rf6 Rg1 f1B Rcg2 Bd3 Rf1 f2 Qg7 Kf3 Qg5 Bg6 Qe5 Qd5 Nf5 Qb7 e7 Qc6 e8R Qd5 Re1 f1N Rc8 Ng3 Ne7 Re6 Rc6 Rf6 Nge3 Bd7 Ng4 Rf5 Ree2 Qe4 Rb2 Qe1 Rbd2 Qh1 Rd5 Rf6 Qh5 Re6 Rf5 Re2 Qg5 Rc2 Qf6 Rc1 Qe5 Ne8 Bd6 Rb8 a8N Rd8 Bb8 Nd6+ Kg7 Re8 Ba7 Qe1 Nc7 Qh1 Ng8 Re6 Kf8 Re7 Qe1 Re3 Ne6 Ke4 Ne7 Re2 Qf2 Re1 Qc5 Rg1 Qb5 Re1 Qe5+
2n3NB/2k1B1K1/2Qnp3/nrNBRNp1/4brq1/3p1B2/1p1R2n1/1BR4n b - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 e4 hxg4 f4 c5 f5 cxd4 e5 f6 exf6 e6 f7+ Ke7 f6+ Kd6 Bd2 Kd5 Bc1 Be7 fxe7 Kc6 Kd2 g5 Kd3 b5 Ke4 d5+ Ke5 g3 e8N b3 f8R b4 c4 b2 h4 d3 a4 g2 h5 b3 c5 d4 h6 d2 a5 Rh7 a6 Qd7 a7 Re7 h7 Na6 h8B Rh7 Nc3 b1N Rf2 Rb8 a8B+ Bb7 Na4 Na3 Bd3 Ne7 Kf6 Nc8 Qc2 d1N Rd2 Ne3 Nf3 g1N Nh4 Nh3 Nf5 Nac4 Ba3 b2 Rhe1 Na5 Rac1 Ng2 Re5 Nc7 Qc3 Re7 Bb1 d3 Kg6 Qd6 Nf6 Qd4 Ng8 Nb5 Qc4 Re8 Kg7 Kc7 c6 Nf2 Be7 Nh1 Nc5 Nbd6 Qc2 Rf8 Qc3 Kb6 c7 Qg4 Qc4 Be4 Bd5 Na7 c8B Kc7 Bd7 Rb5 Be8 Nac8 Bh5 Qg3 Bf3 Qg4 Ng3 Rf4 Nf5 Rb7 Qa6 Rb5 Qc6+
bN1bBQn1/qp1p4/p1BNn3/b1p1R3/1k2N3/2BR2B1/3KB2n/2n2Rq1 b - - 0 1 illegal: Other
B1Rb1r1B/1q2qb2/r1B2rR1/5Nrr/1nNR1k2/n1b3Nr/RnRQ4/2K5 b - - 0 1 illegal: No possible last move
3BR1Q1/RN1q2rB/1rq4R/K3N3/2B2n1N/1r4Rb/3nn1nb/Rr1knr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 c5 d3 Kc3 a4 c6 h3 b6 d2 b7 f3 b5 Kf4 e5 Ke3 g7 f2 b6 d4+ Kc4 a3 Kb5 h2 c7 a2 e6 h4 e7 d3 e8B h3 Be2 f1R Qb3 f4 Qc3 f3 Bd1 f2 Bg4 Rh6 Bf7 Nc6 b8N Ra3 b7 Nf6 g8R Nd5 Bfh5 Nd4+ Kc4 Rb6 Be8 Qd7 Qb4 Nf4 Na6 Bd6 b8R Nde2 Ra8 Rb3 Na3 Be5 Bb2 d1N Be6 d2 Nf3 Rg1 Qa4 f1N Nc5 Rg7 Nh4 Kf2 Bf5 Ke1 Ra7 Bd6 Bf6 Be5 Rb1 a1N Nb7 Nc2 Ra1 Bd6 Bh7 Be5 Rg1 h1Q Rg3 h2 Bf7 Qg2 Rg6 h1R Bd8 Qf3 Rh6 Rhg1 Ra2 Nde3+ Kc5 d1R Qc4 Rc1 Ra1 Rcb1 Qe6 Qe4 Nc4 Kd1 Qg6 Ne1 Be6 Bf6 Ne5 Nd2 Bc4 Rf1 Re8 N3g2 Qf7 Qa4 Qg8 Bh3 c8R Qd7 Rc6 Bg5 Rcg6 Bf6 Nef3 Be5 Rg3 Bc7 Ne5 R6b4 Bb5 Bb8 Kb6 Qec6+ Ka5 Bd6 Bbd3 Rb6 Bb5 Bc5 Ng4 Bg1 Bc4 Bh2 Ne5
1n2q2r/qR4N1/1NR2nbB/QB1rb2B/3Rk1B1/1n2B1r1/3n1b2/r2qN2K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 Kg2 h5 c4 f5 c5 a5 g5 d3 c6 a4 g6 f3+ Kh2 a3 b6 d4 g7 h3 b5 h4 b7 d2 b6 f4 c7 d3 Qe1 d1Q Qe2 d2 Qe1 a2 Bb5 f2 Nc3 f3 Na4 Bf5 c8B Nf6 g8B Bg6 Bf7 Bc5 Bg4 Qe8 Rb1 a1B Rb3 Kf4 e5 Bc3 e6 Be5 e7 Ra6 Ne2+ Ke4+ Nf4+ Be3 Rg1 f1N+ Kh1 f2 Rd3 h2 Rg3 Ra5 Ng2 Qe2 Rc3 d1Q Rc6 Qa2 Qb4+ B3d4 Be3 Nd2+ Ne1 f1N Bh6 Rg8 Rd3 Nb3 Qc5 Nfd2 Qa3 Na6 b8R Bf2 b7 Qaa1 Nb6 Rh8 Ba4 Rd5 Bb5 Rg8 Qa5 Qa2 Kg2 h1R Be3 Rh3 Bh6 Re3 Kh1 Rg3 Be3 h3 Bh6 Qd7 e8N h2 Ng7 Qe8 Be3 Rh8 Bh6 Bh7 Bfh5 Bg6 Rd8 Nf1 b8B Nfd2 Ba7 Nb8 Rd7 Qa4 Nc4 Qa3 Bae3 Qc5 Rf7 Qa7 Nb6 Rh3 Kg2 h1R Rfc7 Rf1 Rb7 Rg3+ Kh2 Qa1 Nf3 Rd1 Ne1 Qc1 Kh1 Qc2 Be6 Ra1 Beg4 Qd1 Rd4+
Br4r1/R2nb1q1/2nQ2R1/NRr2kB1/7K/1q1rRN2/n1pq2N1/1R1r1B1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Ke6 b4 c5 e4 f5 d4 h5 b6 a5 b5 h3 b7 f3 Kg3 h2 g5 a4 g6 f2 b6 a3 e5 f4+ Kh3 a2 d5+ Kf5 e6 c3 d6 c2 e7 c4 e8N f3 g7 h4 d7 c3 Bd2 c1N Qa4 c2 Na3 Ne7 g8B Nec6 Nc4 Be7 Bd5 Rg8 Rb1 a1Q Na5 Na2 Nc7 Qd4 Ne6 Qg7 Bg2 f1R Qd4 f2 Nf4 Rd1 Nf3 f1Q Rg1 Qe2 Bf1 Qc4 Ng2 Qb3 Bg5 Rd2 Qc5 Rd3 Qd6 h1R+ Qh2 Qe8 d8R Nd7 b8R Bb7 Rbc8 Qeg6 Rc7 Rb8 Re8 Ba8 Ra7 Qd6 b7 Qf4 Ne1 Qd2 Rg4 Rg1 Qd6 Rg2 Rg3 Re2 Ng2 Re5 Bf7 Rc5 Bd5 Bd8 Re3 Be7 Kh2 h3 Rg4 Qc4 Kg3 h2 Kh4 Qb3 Rg3 Rbd8 b8R h1R+ Nh2 Rg1 Rb5 Rb8 Nf3 Bb7 Bf6 Ba8 Rg6 Bb7 Bg5 Ba8 Be2 Rd1 Bf1 Ncb4 Nf4 Bb7 Nh2 Bc8 Ba8 Bb7 Ng4 Bg2 Ne5 Nc6 Nf3 Bh1 Ng2
1qQnBK1N/rNb1rb1r/2B2b2/1N1N3R/3NrRr1/3q4/2p2n2/qR2B1k1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 a5 g4 f5 b3 c3 b6 h3 b7 f3 g5 f4 g6 f2 d3 a4 g7 h2 Qd2 a3 Be2 f1R Bf3 a2 Qd1 c2 Qe1 h4 Nh3 Nf6 g8N Be7 Na3 Be6 Bd2 c1B Rb1 Rg1 Nb5 Ra7 Nh6 Rg4 Nf7 Rh7 Nh8 a1Q+ Bc3 Bb2 Qc1 Bf7 Kf5 c6 e5 Ne4 e6 Bf6 e7 Nf2 e8B Qd6 Be4 f3 Nf4 h3 Nd5 Bd8 Qc2 Bc7 Be1+ Bc3 Rf1 h1R Qc1 h2 Qc2 Nd7 b8R Ne5 Rb6 Qf8 Kf6 Rhg1 Ra6 h1R Ra5 R1h4 Qc1 Qg8 Ke7 Rgh1 Bf5 Re4 Bfd7 Qg3 Kf8 Rhg4 Qg5 Rg7 Qd8 Rhh7 Qc8 Qh2 Nd6+ Kd4 b4 c5 b5 c4 b6 Bb2 b7 c3 b8N c2 Ba4 Nc6 Nb5+ Kc5 d4+ Kc4 Nbc3 Kd3 Nb5 Nd8 Nc6 Ke2 Nf4+ Ke3 d5 Bd4 d6 Bf6 d7 Qg3 Nd5+ Ke2 Rg1 Qge5 Rg3 Kf1 Ncd4 Qf4 Rh3 Kg1 Rh4 Qd6+ Ne7 Qb6 Nd5 Qb8 Rh5 Nd3 Ra6 f2 Rc6 f1Q Rc4 Nf2 Rcb4 Nc6 d8N Qd3 Nb7 Nd8 Na3 Bg8 Bac6 Rge7 Nab5 Bf7 Nb3 R4e6 Rf4 Re4 N3d4
B2B2BR/1r6/b2RK3/1B1Q3r/pNRqn1nb/Nn1r4/2Bkbq1N/n5q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 f3 g6 f4 b6 f2 g7 h3 c3 h4 Bd2 f3 Qc1 h2 Ra3 h3 Qb2 Be7 Rb3 Nf6 Bg2 f1Q Bg5 f2 Qa2 d2 g8B+ Kd3 Rb4 d1R c4 Rh5 c5 Nbd7+ Ke6 Rb8 c6 Ng4 e5 Qe2 c7 f1B Bd5 Qf2 Nf3 Be2 Na3 Bf6 Rf1 h1N Rc4 Ng3 Nh2 Ne4 Bh4 Rd2 Rd1 Ke3 Qb3+ d3 Qb5 Bg5 Bc6 Bf6 Qd5 Ndc5+ Kf7 Bf3 e6 Nb3 e7 Be2 e8B Qd6 Bed7 Qc5 Ke6 Qd4 Nf3 h2 Bb5 h1Q Nh2 Bg7 Bd8 Qhg1 Bc6 Bf6 Bb5 Ra8 b8R Ba6 c8B Bh4 Bdc6 Ra7 Ba8 Rd7 b7 Rb2 Rc6 d2 Rd6 Rb1 Rc1 d1N Rc5 Kd2 Rc4 Rf7 Bcd7 Nde3 Be8 Rg7 Bg6 Rd1 Rbc8 Nc2 b8N Rf7 Nc6 Nca1 Nb4 Rb7 Bf5 Nc3 Bc2 Ne4 R8c6 Ke1 Rc7 Rd3 Rh7 Kd2 Rh8
r2R1Q2/r2R1NB1/1n1nq1b1/1pnn2RN/nbb5/N1k2B2/R5b1/K1B2b1R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 Kc2 h5 Kb2 b5 a4 f5 g4 c5 e4 c4 g5 c3+ Ka2 f3 a5 c2 g6 f2 g7 f4 a6 b3+ Kb2 f3 a7 h3 Nc3 h4 Rh2 Qe8 Rh1 h2 Be2 f1B Bc4 f2 Qf3 h3 Ra2 Ne7 g8R Nd7 Ka1 Rh7 Nb1 Nb6 Ne2 Bf5 Ng3 Bg6 Na3 Nec8 Be2 Qe6 Nh5 Re7 Bh6 c1N Bg7 Nd3 Qf6 Rc7 Bf3 Nc5 Rd2 Be7 Qf8 Nba4 Rd1 Bc4 Rd3 f1B e5+ Kd7 d6 Ncb6 d5 Rb7 Rg1 h1N Rd2 Nf2 Rh1 h2 Rd3 Rd8 a8R Nfe4 Ra6 Ra7 Rd1 Kc8 d7+ Kc7 d6+ Kc6 Ra5 Rc8 d8B Rca8 d7 Bd6 Bg5 b2+ Kb1 Be7 d8R Bd6 Bd2 Kd5 Rd7 Kd4 Bc1+ Kc3 Ra6 Qf5 e6+ Qe5 e7 Qf6 Rg1 h1B e8N Bhg2 Rh1 Be7 R1d4 Qf7 Nd6 Qe6 Nf7 Nd6+ Be4 Nb3 Ka2 b1N Bf3 Nbc5+ Ka1 Nd2 Bh6 N2e4 Bg7 Nf6 Ra5 Nfd5 Rg4+ Bf6 Rg5 Bd4 Qe7 Bf6 Rgd8 Bd4 Qf8 Bf6 Re5 Be7 Rg5+ Kb3 Nh8 Bf6+ Bb2 Bc3 Nf7 Bb4 Nc2 Nac3 Ra2 N3a4 Na3 Bgd3 Re5 Bg6 Bc1 Kc3 Rg5+
rR1QK1k1/2B2N1n/NBB5/1rbR4/1b6/1nBb1n2/qrBp1N1r/1r3R1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 a5 e4 h3 g5 h2 c5 h4 b6 h3 c6 a4 b5 a3 e5 f3 b7 f4 c7 a2 b6 f2 Na3 f3 Nc2 Rh5 Bd2 Na6 b8B Bb4 b7 Nf6 e6+ Kg8 e7 Nh7 e8B Qd7 g6 Qf7 Bg2 f1R g7 f2 Ba7 Bf5+ Be4 Re1 c8R f1N b8B Re2 Rc1 a1B Bc3 Nd2 Bc7 Nf3 Bab6 Bc5 Nb4 Rb2 Rb8 Bg6 Ne2 Rf5 Rf1 h1B Nf4 h2 Nh3 Qe6 Nc2 Bb4 Nf2 Nc5+ Ke2 d3+ Ke3 Rh5 Kf4 d4 Qd2 Qd5 Rcd1 Qa2 Kg4 Nb3 B8c6+ Bf8 Nb4 Rb5 Qg5 d2 Bc2 d3 Na6 Bf5+ Kh5 Be4 Rde1 d1R Re3 d2 Rd3 Rc1 Rd5 Rcb1 Qd8 Bd3 Kh6 Kf7 Kh5 Bb4 g8N Bc5 Be8+ Kf8 Nh6 Bb4 Nf7 Kg8 Bg7 Bg2 Bc3 h1R+ Qh4 Rh2 Bc6+ Nf8 Kh6 Bh1 Kh5 Ne1 Kg5 Nf3+ Kf6 Bc5 Rd6 Bb4 Ke7 Bc5 Ke8 Nh7 Qe7 Bb4 Bf6 Bc5 Bd1 Rc2 Rd5 Bc3 Qd8 B3b4 Bc3 Rcb2 Bc2
3Rrb2/2kb1nr1/2Q2B2/rq2pNB1/5r2/B1qq2N1/K1Nq1R1n/1B3BrR b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 h5 b4 d5 g4 Kd7 c4 a5 Kc2 e5 Kb2 e3 f4 h3 b6 h2 g5 h4 c5 d3 f5 h3 g6 d4 g7 e2 b7 e1R f6 a4 c6+ Kc7 b5 d2 f7 a3+ Kb3 d3 Qf3 d1R Qd5 a2 Bg5 d2 Na3 Bd7 Ne2 Nh6 g8B Ra5 Ng3 Re4 Nc2 Ng4 Bh7 Rf4 Rb1 a1Q Rb2 Rc1 Qe4 d1Q b6+ Kd6 c7 Nc6 c8R Qd2 b8N Qe8 b7 Nd8 Ra2 Rg8 Bf6 Rg7 Nc6 Qad4 Ne7 Q4d3+ Kb2 Ra1 Ra8 Kc7 Nef5 Rc1 Ra3 Rb1+ Ka2 Rb6 Qa4 Re6 Rb3 Re7 Rb1 Q2c3 Re1 Qcd2 Re2 Q3c3 Rf2 Qdd3 Rg1 h1Q Bg6 Qhe4 Rh1 h2 Bg5 Qg2 b8B+ Kb7 Ba7 Kc7 Bf6 Re6 Be3 Re7 Rg1 h1R Rb8 Nh2 Bh7 Nb7 Rd8 Nd6 Bd2 Rh4 Bdg5 Rf4 Rf3 Qgd2 Rf2 Bc8 Bg6 Qeb5 Bh7 Re8 Bg6 Be7 f8B Bd7 Bh7 Nf7 Bg6 Bc5 B8e7 Ba7 Ba3 Bc5 Qe4 Bf8 Qf3 Ng4 Qg2 Rh4 Qf3 Nh2 Rh1 Rhg4 Nh6 Raa4 Ne4 Qd1 Ne1 Rg1 Ng3 Qe3 Bb1 Qdd3 Nhf5 Qed2+ Nc2 Ra5 Qc6+
Qb2b2B/Nnpq3N/N1rqb3/2RN3B/6k1/1Nnn1R1b/1b2n2B/2r1R2K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 Ke6 g4 a5 Kg2 h5 b4 f5 e4 f3+ Kh2 f4 g5 a4 e5 Kf5 b6 h3 e6 h4 b5 f2 d5 c3 g6 a3 e7 a2 e8N f3 g7 c2 b7 Bc5 b6 Nf6 g8N Nbd7 b8N Rh6 d6 Ne4 b7 Ba7 Be3 c1N Bb6 Ndc5 d7 Rc6 Be2 f1Q Nef6 f2 Bh5 Qd3 Nh7 f1B Nd2 Ne2 Rc1 a1B Qa4 Bb2 Ngf3 Kf4 Qa5 Qd6 Ngf6 Bg2 Rcf1 N4c3 Nb3 Qe8 d8B Bd7 Ne4 Be6 Qa4 Qed7 Bf6 Nc1 Rf2 N1e2 Ra1 Bf1 Qa2 Bg2 Re1 Bf1 Bh8 Kf5+ Kh1 h2 Nef6 Kf4 Qa3 Bfh3 Qa1 Bhf5 Kg2 h1N Rff1 Nf2 Nfd4 Bg6 Qa6 Be8 Nb5 Kf5 Nd5 h3+ Kf3 h2 Kg2 N5e4 Be3 Nc5 Bf4 Nfd3 Rf3 h1B+ Kh2 Bg2 Qa5 Bh3 Kh1 Bb6 Qa2 Ra4 Qa1 Ba7 Bh2+ Ndf4 Qa3 Rd4 Qa2 Rd1 Qa3 Rc1 Qa4 Bb6 Qa8 Ba7 Na6 Rd1 b8R Rc1 Rb6 Bb8 Na7 Nb7 Nf8 Kg5 Rb5 Nd3 Ra5 Kh4 Rc5 Kg5 Nh7+ Kh4 Bg6 Kg4 Bh5+
1nN2b1K/R5Qn/5q1q/2B1RN2/bN2Rr2/2BbpN2/2r2q1N/bk1Br1q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 c6 e5 b6 d5 b5 d3 Ke3 h3 c7 d2 b7 h4 b6 h2 Be2 h3 Bb2 a4 Nf3 a3 Qg1 d1B Bc3 a2 Nbd2 Ra4 Nf1 Bc2 Bd1 Bd7 c8N Qf6 g3 Bd3 g4+ Ke6 g5 Kf5 g6 d4+ Kf2 e3+ Kg3 Ke4 f5 e2 Kg4 e1Q g7 Qf2 Qg2 Qe6 Kg5 Nf6 Kg6 Nh7+ f6 Qc6 Rg1 h1R g8N h2 Nge7 Qd6 Kf7 Rb4 Kg6 Ba4 Nf5 Qe7 f7 Qf6+ Kh5 Rb2 Qg7 Rc2 Rg6 Rg1 Rg5 h1Q+ N1h2 Re1 Rg4+ Kd5 Re4 Kc4 Be2 Kb3 Bd1 Qd8 Kg6 Qe7 Rc1 a1B Rb1+ Ka2 Rb5 Qd8 Ra5 Kb1 Ra7 Bd6 f8B Qf6+ Kh5 Bb4 Bd6 Rf8 Bc5 Qd8 Kg6 Qhg1+ Rg4 e4 Kh6 e3 Re4 Be2 Re5 d3 Re4 d2 Re5 Nc6 b8R Bd3 b7 Rf7 Rba8 Qe7 b8N Qf6+ Qg6 Qh1 Na6 Nb8 Rae7 Ba3 Raa7 Qhg1 Nb4 Rf8 Be2 d1Q Re4 Qc1 R7e5 Qb2 Bd1 Qd6 N5h4 Rf4 Kg7 Qa6 Qg4 Qb6 Kh8 Qh6 Na2 Qbb6 Qg7 Qbf6 Nf5 Bb4 B5d4 Bc5 Nb4 Bf8 Bc5
b2B2r1/R1R2q2/R5BK/3k1B1n/r2b2pQ/N2Rn2b/rNN3Rq/b1q2q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Ke6 h4 a5 e4 f5 c4 d5 e5 g5 b6 d3 b5 g3 h5 g2 h6 f3 Ke3 f2 h7 g4 Kf4 d4 c5 a4 c6 a3 b7 a2 b6 d2 c7 d3 Rh3 Nh6 Na3 Kd5 e6 Qf6 e7 Ng8 e8N Ne7 Nd6 Nd7 b8R Ra4+ Ndc4 Rg8 h8R Qf7 b7 Bg7 Kg5 f4 Qe1 d1R R8h6 d2 Nf3 g1Q Ra6 Qh2 Bd3 f1B Qh4 Bd4+ Kh6 Nf6 Bg6 Nh5 Ne1 f3 Nb2 f2 Rd3 Bh3 Nec2 f1Q Rba8 Bd7 b8R Bc6 R8a7 Ba8 c8B Re1 Rab7 d1Q Rc7 Re2 Bg5 Qc1 Rbb7 Rg2 Rba7 Rf2 Rb1 a1B Bd7 Qcf4 Re1 Qc1 Ree3 Rd2 Rg3 Rf2 Rg2 Rd2 Bf6 Nf5+ Kg5 Ne3 Bf5 Re2 Bd8 Rf2 Kh6 Re2 Ne1 Rc2 Nd1 Rb2 Nec2 Ra2 Nb2
3R4/kNNbQR1K/Nb2rqn1/4Nbrn/1BpR4/3N1bn1/1n1Bnn2/5B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 e4 c5 g4 Kc7 d4 Kb7 b4 a4 b6 c3 b5 f3 d5 c4 d6 f4 d7 a3 Kf5 h3 Kg6 c2 e5 a2 g5 f2 e6 f3 e7 h2 e8N h4 Bf4 c1N Qd4 h3 Qd3 Ne7+ Kf6 Rh5 g6 Rg5 g7 Ra6 g8R Ne2 Qa3 Ng6+ Qe7 Bg7+ Kf7 Bd4 Nc3 Bc5 Rd1 a1N Kg7 Nb3 Nc7 Nbc1 Rh8 Nd3 N3d5 Nb2 Bd2 Qf8+ Kh7 Qf6 Nf4 Bd4 d8B Bf5 Nd3 Nd7 Bb4 Kb8 b7 Ka7 b8N Re6 Nba6 Bb6 Bd2 Qd4 Nac5 Qf6 Bg2 f1B Nb7 f2 Nf3 Nc3 Nfe5 Ne2 Rg1 h1N Rf8 h2 Rf7 Nhg3 Bh3 Nh5 Rg4 h1B Rd4 Nc5 Bb4 Bfg2 Rd2 Bc6 Bf1 Bhf3 Rd1 Ba5 Bd2 Ne4 b6+ Kb8 Qf8 Ba4 Be7+ Be8 Qg7 Bb5 Beb4 Bd7 Bh3 f1N Bg2 Nfg3 Bf1 Qd8 Qf6 Nf2 Qe7 Nhf4 Nbc5 Nfh5 b7 Ka7 b8N Qf8 Nba6 Bb6 Nb7 Qd8 Qf8 Qf6 Qe7 Bg2 Ra1 Bh1 Ra5 Bf3 Rad5 Be8 Rd8 Bec6 Na5 Bd7 Nb7
1b4RB/r1Qnp1n1/1kBrNR2/4Bn2/bN4r1/2n3qb/r3N1R1/1R3KbR b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 g4 h5 c4 d5 f4 Kd7 b6 Kc6 b7 d3 g5 a4 b5+ Kb6 f5 a3 g6 a2 g7 h3 f6 e3 f7 d4 Rh2 d2+ Ke2 d3+ Kf3 h4 Bg2 e2 Kf2 e1B+ Kf1 Nd7 b8N Rh6 Nf3 Ra7 Qb3 d1B Na6 d2 Nb4 Qc7 Nd4 Bg3 Bf3 Rd6 Bc6 Nh6 g8R Bg7 f8R Nf5 Rg2 h2 Qc2 h1N Rf6 h3 Nc3 h2 Rb1 a1R Nce2 R1a2 Bb2 Qb8 Qc1 Ba4 Ne6 d1N Qc2 Nc3 c5+ Ka5 b6 Bh6 b7 Be3 Re1 Bg1 Rb1 Ng7 Ba1 Qc7 b8B Bf4 Bf3 Be5 c6 Kb6 Be4 Nf2 Bb2 h1R Rh8 Rh4 Bd5 Rd4 Rh1 Ng4 Ba1 Qb7 c7 Nh6 Bc6 Rg4 Bb2 Qa6 Ba1 Qd3 Bb2 Bb7 c8R Qg3 Rg8 Nhf5 Ba1 Bc8 Bb2 Rdd4 Bd6 Bf4 Be5 Rd6 Rd8 Nb5 Bf3 Rh4 Nc7 Nf8 Bec3 Nfd4 Ba1 Nh5 Re8 Bh3 Rg6 Rg4 Ne6 Nf5 Bh8 Nd7 Reg8 Rd4 Qc8 Nhg7 Bc6 Bb8 Rf6 Rd6 Be5 Nc3 Qc7+
2qr1n2/n1p3nN/2r5/R1Rn1r1r/3b3b/B2NbBQK/bB4N1/3kB1RB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 Kd4 Kg2 f5 e5 h5 g5 a5 g6 c3 b6 a4 g7 c2 b5 a3 e6 h3+ Kh2 h4 d3 a2 b7 f3 e7 f4 e8B f2 b6 f3 Bc6 Rh6 Bb2+ Ke3 d4 c1B d5 Be6 d6 Ne7 g8N Nc8 d7 Be7 Na3 Na7 Ne2 Qc8 d8B Nd7 b8R Nf8 Qb3+ Kd2 Nc2 Kd1 Bg2+ f1R b7 f2 Rg1 Bf7 Bce4 Rc6 Qg3 Bf6 Rb1 a1B Bh1 Ba2 Ne1 Bg5 Ba3 Bd4 Rb5 Bce3 Nf4 Be7 Nfd3 B7g5 Bhg2 Be7 Ra5 B7g5 Kh1 h2 Bde7 Bgf6 Bb2 Bfg5 Bea3 Be7 Bh3 Bef6 Kg2 h1N Bhf5 h3+ Kh2 Bh4 Nf6 Be5 Ng2 B5d4 Qd6 Ng3 Nh7 Nh5 Qg3 Ng7 Bd5 Qe6 Bfe4 Qf5 Re8 Rd8 b8B Qc8 Re7 Re1 Re5 f1N+ Kh1 h2 Rf5 Nb5 Ba7 Re2 B7c5 Rf2 Bcb4 Na7 Re5 Rf5 Be1 Rh6 Ba8 Rc6 Rec5 Ra6 Bf2 Bd2 Bed5 Be7 Be1 Ne3 Nh4 Rad6 Bg2 Re6 Bad5 Rc6 Bde4 Nd5 Qe5 B2e3 Qg3 Bc4 Bgf3+ Kc2 Kg2 h1R Ng6 Rh6 Ngf4 Bh4 Kh3 Rhh5 Bh1 Kd1 Ng2 Ba2 Bf3+
2rRnKQB/3R1b1N/5n2/q3rRB1/B1b1n1br/1p1R1pNN/3b4/3bkR2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 f5 d4 c5 g4 h5 d6 b5 g5 f3 d7 b3 Ke6 b2 Kf7 h3 d5 b4 a5 f4 a6 h2 g6 h4 g7 h3 d6 b3 a7 f2 Nc3 b1N Ra5 Nf6 g8R Bh6 Rg3 Na6 Rd3 Nc7 e4 Nd2 e5 Nce8 e6 Nde4 e7 Bg5 Bg2 f1B Qg4 Rh4 Nce2 Qc7 Ra2 Qa5 d8R Bh6 Qg6 Bg4 d7 Rc8 a8R Kb4 Rc2 c4 Bb2 c3 Ra7 Rc5 Qg7 Re5 Kf8 Bg5 Rcd2 c2 Ng3 c1R Qg8 Rc8 Rf2 Bfe2 Rc7 Bd1 Rc5 N4d6 Bc6 Nde4 Rcd5 Kc4 Ba4 Kb4 N1e2 Kc4 Re1 h1B Ref1 h2 Ng1 Bg2 Bd4 h1B Nh3 B2f3 Bc3 Be6 Bb2 Bf7 Bd4 Bg4 Ba1 Nc7 e8N Bhf3 Bb2 Bge6 Bd4 Bfg4 Ba1 Kb4 Rd6 Bc4 R6d4 Nfd5 Nf6 Ne8 Nh7 Ndf6 Rd5 Re6 Rf5 f3 Rg1 Bd2 Re1 Nh5 Bh8 Re5 Ree3 Nhf6 Rd5 Rc5 Red3 Rc6 Rc8 Rc7 d8B Rc5 Rc7 Rc6 Rcd7 Rc8 R3d4 Kc3 Rd3+ Kc2 R5d6 Be2 Be7 Kd1 Rd8 Ke1 R6d7 Nh5 Bef6 Bd1 Bg5 Nhf6 Rf1#
3BrQ2/2bnq3/kBnr2r1/3pN2B/bNb1p1Rr/2N4R/2NN3r/R2K3n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 g4 d5 c5 Kd7 g5 Kc7 g6 Kb7 g7 e3 c6+ Kb6 c7 e4 f5 h3 f6 d3 f7 h4 Qf3 h2 Nc3 e2 Bg5 Be7 f8B Nf6 g8R Ba6 c8N+ Kb7 b6 h3 b5 a4 Qf5 a3 Nf3 a2 Na7 Bd6 Nc6 Qe7 Nce5 Nc6 Nd2 Rh4 Bg2 Rb8 Bf3 Bc7 Bh5 Re8 Bfh6 Nd7 Qf8 Qa3 Bd8 Qe7 Rf1 h1R Be3 h2 Rg4 Rg1 Bd4 Rg3 Rf3 h1N Bg1 Rg2 Rh3 Rh2 Bc5 Kc8 b7+ Kb8 Rb1 a1R Bb6 Ra4 Ra1 Ra3 Ba5 Ka7 b8N Kb7 b6 Bc4 Na6 Ra2 Nb4 Ra4 Nc2 Ka6 b7 Rb4 Nb3 Rb6 Kd2 e1R+ Qf2 Re2+ Kd1 d2 Qf8 Reg2 b8N+ Kb7 Rf4 Rg6 Na6 Rd6 Nab4 Rg6 Ne1 Ka7 Rg4 Ra6 Kc2 d1B+ Kc1 Rd6 Nd2 Ba4 Nec2 Rb6 Nba2 Ka6 Kd1 Rb3 Bb6 Ra3 Ncb1 Rg3 Nbc3 Rgg2 Rf4 Rg7 Rg4 Rgg6 Nb4+
R1rb1K1k/1B6/5N2/bb2R1R1/2rRp3/pR5N/Bq1bqNnQ/qbn1B3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 c4 e3 Ke2 Kf7 Kd3 e5 Ke4 g5 Kf5 Kg7 b4 a5 h4 d3 f4 e4 h5 d5+ Ke5 a4 b6 e2 b7 e1B f5 a3 b5 d2 b6 g3 c5 d4 c6 d3 c7 g2 Qe2 d1Q Bd2 g4 Nc3 Nd7+ Ke6 g3 b8R Bb4 b7 Ra4 Ra8 Ne7 b8R Nd5 Nh3 g1B Qh2 Ba6 c8B Bb6 Rg1 g2 h6+ Kh7 Kf7 Ne3 f6 B4a5 Rb1 Nc5 Rb5 Nb3 Re5 Qd4 Be6 Qg4 Nd1 Qb2 Ndf2 Rc8 Ke7 Qf3 f7 Bd8+ Ke8 Qg4 Bc3 d2 f8N+ Kh8 h7 d1B Rb6 Bc2 Nd7 Kg7 Nf6 Rd4 Bfc4 Qe2 Bcd5 Bc4 Bb7 B4d3 Rf1 g1Q Bb4 Bc3 Rd1 Ng2 h8R Bc4 Rd3 Qga1 Rhh5 Nc1 Rhg5+ Kh8 Kf8 Bb1 Bf7 Ba6 Ba2 Rdc4 Rbd6 Bb5 R6d4 Bd2 Rf3 Be3 Be1 Bed2 Rb3
2Bq3b/2k1NR1n/p1r2QNr/1n3br1/b1b3Rp/N3B1q1/Nb5N/1B2R2K b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 d5 c4 Kd7 f4 h5 Kf2 e5 g4 e3+ Kg2 e4 g5 d3 g6 e2 f5 e1B b6 a6 b5 d2 g7 d4 f6 e3 b7 e2 f7 d3 c5 Nc6 b8N+ Kc7 Na3 Bf5 Nf3 Nd4 c6 Nf6 g8N Nh7 Nh2 Bg7 Ne7 Rg8 f8N Bh8+ Nfg6 h3+ Kg1 h4 Qb3 d1B Qb2 Bc2 Be3 Bc3 Re1 d2 Qa1 d1B b6+ Kd6 b7 Ba4 c7 Bb2 c8B Kc7 Bg2 Bdb3 Nbc6 Nb5 b8R Bc4 Nb4 Rg7 Rf1 e1Q Na2 Qg3 Rf4 Rg8 Rg4 Ra7 Rb6 Rb7 Rd6 Rb6 Rf6 Rc6 Rf7 Rg7 Nf8 Rg5 Qf1 Rh6 Nfg6 Qe1 Be4 Qc3 Nf3 h2+ Kg2 Qg7 Bb1 Qgg8 Rg1 h1R Nh2 Qg7 Qf2 Qe5 Rd1 Re1 Qf1 Qg3+ Kh1 Re2 Qf3 Rd2 Rg1 Rd6 Re1 Rc6 Qf4+ Bhe5 Qd4 Bh8 Qf6
K3B2N/p6R/n3QqNN/rNb1nr2/bk1q1r2/3p1RrN/1rb1R2B/4B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 b4+ Kc4 g4 h5 g5 f6 b6 d3 g6 h3 b7 f3 b5 f2 b6 h4 g7 h2 Bd2 d6 Be1 h3 Nc3 d2 Ra3 Rh7 Nb5 Bd7 Rf3 Ne7 g8N Rf7 Nh6 Kb4 c4 Na6 b8R Be8 b7 Nc6 Kd5 f5 e4 f4 e5 Rf5 c5 Bg6 Bd3 f1Q Qe2 Qb6 Rd8 Rb8 Re8 Qd8 Be4 Qf6 Bc2 Qf2 Ba4 Qe3 Re7 Qc3 Re8 d1B Re6 Be7 Qa2 Rg8 b8B Be8 Qe2 Bc2 Bc7 Rg3 Qe3 Ncb8 c6 Nd7 Bb8 Bf8 c7 Qd2+ Kc6 d5 Kb7 d4 c8N Bc5 Ka8 d3 Ne7 Qc3 Rf1 f3 Ng6 f2 Re7 Rf4 e6 Ne5 Rh7 Bd7 e7 Rf5 e8N Rf4 Ne2 Rf5 Rhg1 h1R Rg2 h2 Nef4 Rg1 Bc7 h1R Ned6 Rhh5 Nh3 Rhg5 Rh2 R1g2 Ndf7 Rh5 Nfh8 Rhg5 Rg1 f1R Rgh1 Rd2 Re2 R1f4 Rf1 Qd4 Rf3 Be8 Bb3 Rh5 Bf7 Bd7 Be8 Rhg5 Nc3 Bda4 Bb8 Bb1 Qe4 Rb2 Qd5 Rh5 Qe6 Bbc2 Nb5+ Qc3 N8f7 Nd7 Rfe3 Rf2 Kb7 Rgf3 Nfg5 Re5 Ka8 Bd6 Nc7 Ra5 Ne5 Bc5 Ngf7 Rhf5 Ng6 Rg2 Nfh8 Rgf2 Rd2 Qcd4 Nb5 Rg2 Bh2 R3f4 Rg3 Ne5 Rf3 Rg3 Re2+
1N2bNK1/4q2R/2rRBBb1/Q1b4R/np4kr/3R1q1r/p3r1n1/2RN1q1B b - - 0 1 illegal: No proof kernel
5N2/B2B4/qr1Q1BR1/B5np/2r4B/2NKbNnb/1p1n1q1b/1R2Rkqn b - - 0 1 illegal: No possible last move, all moves rejected
2N3k1/q3q1r1/nRQ1NrN1/r1pN4/brBb4/2b3p1/nB3BR1/q2NR2K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 Kg2 f5 d4 Kf7 e4 c5 h4 a5 b4 a4 h5 c3 h6 c2 d5 g3 e5 a3 b6 a2 d6 g4 h7 Bg7 d7 Ne7 b5 Nd5 b7 Nb4 b6 Qe7 Nh3 Ra5 Nc3 Rg8 Rh2 f3+ Kh1 f4 Qd6 f2 Qc6 f3 Nf4 N8a6 Bb2 c1R b8B Rb1 h8N+ Kf8 d8N Bd7 e6 Bd4 b7 Rg7 Qc8 Kg8 Nfd5 Ba4 Rg2 Bf6 Nd1 Bc3 Bc4 f1R+ Rg1 f2 Qc6 Bd2 Bd6 Bc3 b8R Qa7 Ng6 g2+ Kh2 Qe7 Rb6 Qa7 Bg3 Qe7 Rh1 g1B+ Kg2 Qa7 Rh2 Qe7 Kh1 Qa7 Be5 g3 Bd4 Qe7 Rg2 Qa7 Bc1 Rb3 Rb1 a1Q e7 Na2 e8N Rb4 Nd6 Qe7 Nc8 Qa7 Rb3 Qe7 Bb2 Qa7 N1e3 Qe1 Nd1 Qee7 Ra3 Bb5 Ne6 Ba4 N1e3 Nc1 Ra1 Na2 Bb3 Re1 Ng4 f1Q Bc4 Re3 Rb1 Rf3 Nge3 Rf6 Ra1 Qd3 Re1 Qb1 Nd1 Qa1 Be5 Be3 Bf4 Bed4 Be3 Bb5 Bg1 Ba4 Bf2
B2rn3/1K1k2p1/4NB1p/B2n1bQq/b1B1Bbb1/4q3/N3rRR1/4bbRN b - - 0 1 illegal: No proof kernel
5R2/3K2Q1/1rB2N2/1b2N1B1/1R4R1/qb1bBn1k/1pp2NrB/1n1nnrbB b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 a4 f5 d4 c5 d6 b5 d7 h5 Ke6 b3 a5 b4 g3 f4 a6 c4 d5 b2 d6 c3 e5 h3 a7 b3 Ne2 h2 Qc2 f2 Na3 b1N Nb5 h4 Qd3 f3 Rg1 h1R Ned4 b2 Ra4 c2 Be3 h3 Qh7 h2 Nc3 Nf6 Bg2 f1B Nc6+ Ne4 Rb4 f2 Qg7+ Qg5 Bf3+ Kh3 g4 Ned2 Ne4 Na6 Rg2 Qf4 g5 Rb8 a8B Bb5 g6 f1B Rg4 Qg3 Bb7 Rg1 Bh1 Rg8 Ba8 Bb7 d8B Nf3 d7 Bc5 Bc7 Bfd3 d8B Rf1 Bdg5 Bd4 Ke7 Nc5 e6 B7a6 Bd6 Rb6 Ne5 Bdc4 Bc7 Bb3 Bc6 Nd3 Kd7 Nde1 e7 Bd3 e8N Bab5 N8f6 Bc5 Bd2 Bg1 Bde3 Qf4 Nh7 Qf8 Nhf6 Qa8 Qf7 Qa3 g7 Rh8 g8R Rh6 Bh4 Rg6 Rf8 Rg5 Qg7 Rg6 Rf4 Rg2 Rg4 Rff2 Bd4 Ba6 Nf7 Bac4 Bg5 Bb5 Bg3 Re2 Ne5 Rgf2 Rf4 Rf1 Be3 Nd4 Bf3 h1N Rg4 Nf2 Bg3f4 Nd1 Bh1 Rg2 Bh2 Ndf3 Nf2+
3N1B2/N3bprB/B1Q4B/nR3nq1/bp2nb2/p1r2R2/q1q3N1/BR1k2K1 b - - 0 1 illegal: No proof kernel
R1b1q3/N7/1N2R2B/r2B4/2p1n1bK/BB3Rrp/n2prbB1/2N1kbnQ b - - 0 1 illegal: No proof kernel
8/r2NqpK1/bR2N2n/2q1p2B/Np1R1r1Q/bBB2q2/k2qN2N/n3q1R1 b - - 0 1 illegal: No proof kernel
NR1Nnb2/QbnN1kn1/2qBq2p/8/B3R2r/2pp1b2/b2rB2R/2K3BB b - - 0 1 illegal: No possible last move, all moves rejected
N1BQ4/n2R1BBK/2p2b2/p4n1n/2qRRrB1/N1N1p1q1/Br6/1nr3kb b - - 0 1 illegal: No proof kernel
q1NN1r2/1n2BpN1/b4b1n/6r1/p2RR1Q1/q3p1B1/k1r1b1K1/b2NNBR1 b - - 0 1 illegal: No proof kernel
1r1n1n1B/bp5n/2N2BNr/6p1/1K1pQ1Nr/3b3R/k2Nr2N/qB1q1R1R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 h4 d5 f4 g5 c4 e5 a4 e4 f6 Ke6 f7 b3 h5 g3 f5+ Ke5 f6 d3 Kc3 b2 h6 d2 a5 g2 h7 e3 a6 e2 c5 e1Q a7 Nc6 Qf3 d1R+ Nd2 b1R Bb2 Bf5 Bd3 Rb8 Bc2 Bd3 a8R Qf1 R8a4 Re1 Rah4 Re2 R4h3 Qd7 Qg4 Nd8 c6 Bc5 f8N Ba7 f7 Nf6 c7 Qd1 c8N Qa4 Qb4 Rc1 Rb1 Qa1 Ng6+ Ke6 Ngf3 g1N Nh2 Nf3 Qe4+ Ne5 Nce7 d4+ Kb4 Kd6 Ba3 Ned7 Nc6 Nf8 Nge5 Ke6 Neg4+ Kd6 Qg6 Kd5 Rf1 Rg8 h8B N6h7 Kb3 Rg7 Be7 Rg8 Bef6 Kc5 Qe4 Rg6 Rb2 Rh6 Ra2 Rb1+ Ka4 Rb6 Ka5 Rh4 Ka4 Nd7 f8N Ra6+ Kb3 Kb5 Ng6 Ndf8 Nb1 Rb6 Ka3 Kc4 Nd2+ Kc3 Ka4 Rc8 Ra3+ Kb2 Rh1 Ra6+ Kb4 Rb8 Rc3 Ka2 Rf3 Ra5 Rff1 Rf5 Rb3 Rf3 Rc3 Rfh3 Rb3 Rh6 Rc3 R3h4 Rb3 Bb5 Rh3 Bd3 Bb1+
1Q1RN3/1pr1qqp1/1B1q3n/1b6/1p5b/BBq1nRBK/krR2NN1/1r5B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 d4 c5 h4 f5 e4 c4 a4 g3 a5 c3 e5+ Ke7 e6 Kd6 a6 f3+ Kh3 f4 h5 c2 a7 f2 h6 g2 h7 f3 Rh2 Qg5 Nd2 Qg6 Nc4+ Ke7 d6+ Kf6 d7 Nh6 d8B+ Be7 d5 Nc6 d6 Ne5 d7 Neg4 Ne3 Ke5 Bb6 Bh4 d8B Bd7 e7 Qd6 e8B Bb5 Bdc7 Rc8 Ba3 c1Q a8N Qc3 Be2 Rf8 h8R f1R Qd2 f2 Bf3 Ke6 Rc1 Re1 Rc2 f1Q Qe2 Qe7 Bg3 Rc7 Qd3 Rd1 Qd8 Rb1 Qb8 Rf5 Be4 Rf2 B8c6 Re2 Rd8 Qff7 Bf3 Ba6 Ba4 Bb5 Nd5 Ne3 Nf4+ Ke5 Bd5 Qd2 Bf3 Qdd6 Rc3 Reb2 Rb3 Rc5 Nc7 Kd4 Ne8 Kc4 Rd3 Rc7 Be4 Nd5 Rf3 Ne3 Nge2 g1Q Nc3 Qg8 Rc2 Qc1 Ng2 Qgf7 Bc6 Qcd2 Ne4+ Qc3 Nf2 Ba6 Bab5+ Kb3 Ba4+ Ka2 Rf5 Qdf6 Ne1 Qcb3 Bh1 Bb5 Ng2 Qbc3 Rf3 Qfd6 Bb3+
2R3b1/1nB2qbR/KNBp2k1/1p1bNp2/R1N1q1rn/bQ2RBr1/6Rp/8 b - - 0 1 illegal: No proof kernel
r4bq1/1B1p3b/4N2R/QRQ1bn2/1N1n1rp1/1N6/KQNkN2n/B6b b - - 0 1 legal: proof: e4 a5 b4 c5 d4 f5 exf5 h5 g4 cxd4 gxh5 b5 c4 bxc4 b5 a4 Qxa4 c3 Qc2 Rxa2 Qd1 Ra8 f4 Kf7 h4 Kf6 b6 e5 h6 g5 h7 d3 h5 e4 h6 e3 b7 c2 Ne2 g4 Na3 Ra6 Bb2+ Kf7 f6 Kg6 f7 Kf5 Bg2 c1N Qa4 d2+ Kd1 Bd6 Kc2 d1B+ Kb1 Bb3 f8N Be6 Qa5+ Bd5 Ne6 Nb3 Nc1 e2 Nc2 e1B Ka2 Be5 Rb1 Be4 Ba1 Nd4 Rb5 Nbc6 b8N Ra8 Na6 Nge7 Nab4 Rf8 h8N Bb7 h7 Nf3 Ng6 Ncd4 Rh6 Nh2 h8Q Rf7 Bh1 Qg8 Bf3 Bd3 Bh1 Bg2 Qg7 Ke4 f5 Bc3 f6 Nef5 Ngf4 Bd6 Nfe2 Bf8 Na3 Ke3 Nac2+ Kd2 Qh8 Bf1 Bb7 Bg2 Qg7 Bh1 Qh8 Rg7 f7 Rg6 Qg7 Rf6 Qh8 Ne3 Qg7 Rf4 Qh8 Bh7 Qg7 Be7 f8Q Nef5 Qc8 Bf8 Qc5 Nc6 Qh8 Be5 Qf6 Bed6 Qb2 Ncd4 Qca7 Bb8 Qc5 Be5 Nb3+
5q1Q/bQR4R/r1bp2B1/2br1nN1/k2B1p1Q/Nn1R1K2/R2b3R/2q5 b - - 0 1 legal: proof: f4 a5 b4 b5 c4 e5 cxb5 exf4 g4 h5 gxh5 axb4 a4 c6 a5 c5 Ra4 c4 Ra1 c3 dxc3 bxc3 Kf2 g5 h4 f5 e4 c2 a6 g4 a7 g3+ Kf3 d6 e5 Kd7 b6 Kc6 h6 g2 e6 Ne7 h7 Bd7 h5 Qe8 h6 Qf7 b7 Kc5 Bd3 Kb4 Ra3 Nbc6 Bb2 c1B Rh2 Be3 Bd4 Na5 Nh3 g1B Ng5 Nb3 b8Q+ Bb5 Qc8 Bc6+ Be4 Bd2 Qe1 Bg7 Qh4 Qf8 Qa6 Rg8 h8Q Bf6 h7 Rg7 Bb2 Bfd4 Qb7+ Bb6 Bf6 Bc5 Bd4 Kb5 Ra2 Rg8 Na3+ Ka4 Rc2 Rg6 Rc3 Rh6 Rd3 Rh5 Ke2 f3+ Kf2 f4 Bg6 Re8 a8R+ Ba7 Rc8 Rd8 Rc7 Nf5 e7 Rb8 e8R Ra8 Kf1 f2 Ke2 Bd7 Kf3 f1Q+ Kg4 Qd1+ Ree2 Qc1 Kf3 Bb5 Qe5 Be8 h8R Bd7 Rh7 Bc6+ Ne4 Ng3 Qe8 Rd5 Ng5 Nf5 Qec8 Bab6 Qe8 Ra6 Qe5 Ba7 Qh8 Be3 Rb2 Bd2 Ra2
nRrn4/6N1/qQ5R/2RB1R1b/2Qp4/k1qRN1BN/nnpr1r2/K7 b - - 0 1 legal: proof: e4 a5 b4 b5 h4 g5 d4 gxh4 a4 f5 exf5 axb4 axb5 c5 c3 Bh6 Ra4 Bf4 Ra1 Bd6 Ra3 c4 Ra1 Bc5 dxc5 bxc3 g4 e5 f4 Ke7 g5 h5 b6 d5 c6 Kd6 g6 Kc5 b7 Kb4 c7 d4 f6 e4 g7 h3 f5 h4 f7 e3 f8N h2 f6 e2 f7 h3 Ra5 Na6 Be3 Qf6 Bf4 Ne7 g8R Bg4 c8R Nc6 Ra1 Nc7 Nd2 Ra2 b8Q+ Ka3 Qc2 Na8 Ne6 Bf3 f8R Qg6 Kf2 e1N Bg2 Nd3+ Kf1 Bd1 Rf5 Qf6 Rg3 Rg8 Rc7 Rc8 Bd5 Nd8 Ng7 Qa6 Rb1 Bf3 Rb6 Bd1 Rh6 Bh5 Rf3 Rb2 Ke2 Ra2 Kd1 Rb2 Ne2 Ra2 Re1 h1R Nf1 Rh2 Rc5 Rf2 Ng1 Rb2 Re7 Ra2 Qe2 Rc2 Qb6 Nb2+ Ke1 Rd2 Rb7 Rd3 Rb8 Rd2 Be3 c2 Qd3+ c3 Bf4 c1N Qc4 Na2 Bc7 Rd3 Rg3 h2 Nh3 h1Q Rgf3 Qg1 Bg3 Na4 Re3 Rdd2 Rd3 Rde2+ Kd1 Qh1 Rd2 Qf3 Kc2 Nb2 Kb1 c2+ Ka1 Qc3 Rd3 Rd2 Ne3
4QnBB/q4b2/Rp2n2N/3b1N1q/2n1k3/Rq1p4/2rQ1RRQ/2q1R1K1 b - - 0 1 legal: proof: b4 f5 d4 c5 e4 cxd4 exf5 g5 h4 gxh4 a4 a6 b5 axb5 a5 Bh6 Bxh6 Ra6 Bd2 Rh6 Bxh6 Qb6 Bc1 Qd8 f4 Kf7 Kf2 Kf6 c4 d5 g4 e5 a6 h5 a7 e4 a8R d3 c5 b4 c6 b3 c7 d2 R8a6+ b6 Nc3 b2 Qe1 d1N+ Kg2 b1Q Nge2 h3+ Kh2 h4 R1a3 e3 Ng3 d4 Qd2 e2 Bb2 e1Q Nce2 Qe7 Kg1 Be6 c8Q Ne3 Qc7 Bf7 Ba1 Qec1 g5+ Kg7 f6+ Kg6 Qe5 Nh6 Nf5 Rc8 Neg3 Nc4 Qee2 Qb3 Qh2 Qa7 Bb2 Be8 f7 Nd7 f8R Nf7 Nh6 Nd8 Ngf5 Ne6 Ba1 Bf7 Rg8+ Kh5 g6 Ndf8 g7 Kg6 Bc3 Qcc2 Bg2 d3 Bd5 Qcb1+ Kf2 Qa1 Re1 Qc1 Kg1 Rc5 Ne3 Rc7 f5+ Kg5 f6 Rc6 Qf4+ Kg6 Nef5 h2+ Kg2 h1B+ Kg1 h3 Qfh2 Ne3 Be5 Rc2 Bc4 Bd5 Bb2 Be8 f7 Kg5 Ng3 Kf4 Ngf5+ Ke4 Bd4 Nh7 f8Q Bh5 Qe8 Bf7 Rh8 Nf8 g8R Qbb2 Ba2 Qb4 Rg2 Qb3 Rf1 Nc4 Rf2 Nb2 Rg8 Nc4 Rgg2 Qe1 Qc7 Qc1 Bh8 h2+ Kh1 Qbb1 Rgg1 Bh5 Qa4 Ng5 Rc3 Bg8 Qb3 Ne3 Qbf7 Bg6 Be6 Nc4 Rca3 Qb3 Qe8 Bh5 Rd1 Bg6 Kg2 h1Q+ Kf1 Qh5 Qh2 Nb2 Rgg2 Nc4 Qc8 Be8 Kg1 Bc6 Bf7 Bd5 Qe8+ Nge6 Rdf1 Bh7 Rd1 Bg6 Bg8 Bf7 Re1+
4NqR1/1n6/4b3/1N4RK/BnR1nkn1/4r1Qp/4nBBp/1QBnBn2 b - - 0 1 legal: proof: b4 a5 h4 b5 f4 c5 a4 e5 axb5 exf4 d4 cxd4 b6 g5 b7 Bc5 bxc5 gxh4 Bb2 Ra6 Bc1 Rb6 cxb6 Qg5 Rh2 Qf6 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 e4 f5+ Kh5 d5 c4 h3 g4 a4 c5 d3 g5 d4 c6 a3 g6 d2 c7 h2 g7 f3 Bh3 a2 Bg2 f4 Nh3 f2 Ng5 f1N Qb3 d1N Na3 f3 Ne6 d3 Qb1 f2 Rg1 d2 Nb5 Na6 b8B Nde3 b7 d1N Ba7 Nb4 b8B Qf8 Bb6 h6 Ba5 Ng4 Ba7 Bd7 c8Q Rh7 Nec7 Be6 Qd8 Ng3+ Kh4 f1N Ne8 h5 Bf2 N8f6 g8R Ne2 Qe7 Nd3 Bae1 Nc5 Kg5 Nb7 Kg6 Nd7 Qh4 Rf7 Kg5 Rf3 Kg6 Ndf6 Kg5 Nd2 Kg6 Kf4 e5 Bb3 e6 Ne4 e7 Re3 Nec7 Bc4 e8B Nf1 Bd7 Be6 Ne8 Qb4 Na3 Qf8 Ba4 Nbc5 Nb5 Nb7 Qd8 h4 Kh5 h3 Qh4 Kf5 Qd3 Ke5 Rb1 a1N Rb4 Kf5 Qb1 Nc2 Rc4 Nb4 Bf3 Rc3 Rg3 Re3 Bg2 Ne5 R3g6 Ng4 Rg5+ Kf4 Qg3+
4N2k/pBr1r3/1pNB3N/1n2Qq2/Rb3qpB/2N1n2p/8/K1Rb2NQ b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 f4 b6 f3 exf3 Qd6 f4 Qd7 f5 Qd8 b4 Bd7 b7 Be6 b5 Bc8 b6 cxb6 h4 g6 h5 gxh5 g4 hxg4 f4 Kf7 d4 Kg7 Kd2 e5 Kc2 h5 Kb2 e4 d6 h4 d5 h3 f6+ Kh7 d7 e3 f5 e2 f7 e1Q f6 Bb4 f8B Be7 f7 Bc5 d6 Qg3 Bg5 Nc6 b8Q Bd4+ Nc3 Bb7 Bh4 Bg7 Ra4 Qc8 d8N Nd4 d7 Nf6 Ba6 Qf4 Qe5 Nb5 Bd6 Re8 f8N+ Kh8 Ka1 Re7 Nh7 Bf3 Nc6 Nd5 d8N Ne3 Bb7 Qcf5 Nf6 Rc8 Ne8 Rcc7 Qf1 Bd1 Nf7+ Kh7 Nh6 Kh8 Rh2 Bf6 Rc2 Bg7 Rc1 Bf6 Qe4 Bd4 Qe1 Bc5 Qh1 Bb4 Qe2 Nf1 Qe6 Ne3 Qe5+
Q6q/qQNR4/Q2R1n2/n1r1B3/4rB1r/rn1b1K1B/b3BB1b/2k1q1N1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 g4 Kf6 e4 Ke5 d3 Kd4 g5 c5 d6 f5 b6 h5 g6 b3 e5 f3 e6 h3 g7 b2 b7 h4 d7 c4 e7 c3 e8B c2 Rh2 f4 Bh5 Bd6 Nd2 Kc3 d4 b1Q d5 Qbb6+ Ke1 f2+ Ke2 Qa7 Rg2 h2 Rb1 h1Q Qe1 h3 Rg6 h2 Bh3 f1N Ndf3+ Nd2 Qf1 Nc6 b8B Nf6 g8Q Nb3 Qf7 Nca5 Nd4 Re8+ Ne6 Qe4+ Be3 h1R Rd1 Kb2 Nc7 c1R Kf2 f3 Qa6 Bf4 d6 Rc5 B5g4 Bh2 Bf4 Re7 Rh6 Qf8 d8Q Be6 d7 Qh8 Qdf8 Bd5 d8B Be6 Rd2+ Kc1 Be5 Qb1 Rd7 Bd5 Ke3 f2 Be2 f1B Qh7 Bc4 Kf3 Bd3 Qfg8 Qa1 Qd5 Qc3 Qdb7 Qe1 Qg8 Re6 Qg2 Bb1 Be7 Ba2 B7d6 Re7 Bd4 Re4 Bf2 Ne8 Be5 Nf6 Bd1 Bd3 Be2 Nh5 Rhd6 Nf6 Bf5 Bg3 Bg4 Rh4 Bh3 Bh2 Qg8 Bc4 Bf4+ Kc2 Qab5 Nc6 Ne8 Qa3 Rd5 Bd3 Bbe5 Qaa5 R5d6 Kb1 B4g3 Kc1 Nc7 Qb6 Qgc8 Ra3 Qca8 Nca5 Q5a6 Qa7 Bgf4+
1b1Nq1R1/qB2r3/1N6/nr6/1B2BnQ1/2B2rbb/BK2QNk1/R2q2nb b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 d4 Kd7 Kd2 Kd6 Kc2 f5 e4 c5 g4 h5 b6 c4 b7 h3 g5 b3+ Kb2 h4 g6 f3 g7 h2 Kc3 h3 Ra5 f4 Ra1 f2 Qd3 b2 Be2 f1Q Ra5 f3 Ra6+ Nc6 Bh6 f2 Ra1 Nge7 g8B Ra5 Bd2 Ng6 Bf3 Qe8 Na3 b1N+ Kb2 Nf4 Bc3 Rh7 Qe2 Qd1 b8Q+ Rc7 Qb5 f1R Qa4 Re7 Bh7 Nd2 e5+ Kc7 e6 Kd6 Bg2 Nf3 Be4 Rc5 Bb4 Na5 Bc3 Rb5+ Qb4+ Kc7 d6+ Kb6 d5 Bd7 Qb3 Kc5 Bb4+ Kd4 Qa4 Bc8 d7 Ke5 d8N c3+ Ka2 c2 d6 c1B d7 Be3 Kb2 Bf2 Nc4+ Kd4 Bb7 Bg3 Nb6 Bg7 Be4 Be5 Bb7 Bb8 Be4 Rg7 e7 Ke5 Bb7+ Kf5 Be4+ Kg4 Bb7 Qh8 e8B Re7+ Ka3 Qf8 Bf7 Qe8 Ba2 Qd4 Be4 Qc5 Kb2 Qc7 Nc6 Qa7 d8B Be6 Bc7 Bf5 Be5 Bc8 Bc3 Rf2 Qec2 Be6 Ne2 Ng1 Nd8 Rf3 Nc1 Rf2 Qb3 Bf5 Nd3 Nb7 Qd5 Na5 Qd7 Rf1 Bad5 Bh4 Qe2+ Kg3 Be5 Be6 Bh7 Bg4 Be6 Bf5 Bb7 Rf3 Qe3 Ne2 Rhc1 h1Q Ba2 h2 Nf2 Bh3 Bc3 Qe1 Rcb1 h1B Bhe4 Qg1 Rd1 Qf1 Rd5 Ng1 Qe2 Kg2 Qg4+ Bg3 Rg5 Qd1 Rg8
B1KB2Q1/6R1/N4q2/2bbNnb1/rk2r3/2N1R1nn/b4nN1/B1QbNn2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 g4 h3 d6 h2 b6 h4 b7 h3 d7 f3 Ke6 b3 d4+ Kb4 g5 c5 d5 f4 e5 b2 d6 c4 g6 c3 g7 f2 Ba6 f3 Ra3 c2 Re3 Nf6 g8Q Ne4 Nc3 Rh4 Bc4 f1B Bd5 b1B Bb2 Bc4 Qc1 Bba2 Ba1 Nc6 b8N Ne7 Nc6+ Kb3 Re1 f2 Nf3 f1N Rg1 h1N Rg7 Nhg3 Re3 h2 Ne1 h1N Nb8 Ba6 Nc6 Qb6 d8N Nhf2 Kd7 Ng5 e6 Ngh3 Ne5 Nef5 e7 Re4 e8N Kb4 Nc7 Bcb3 Bb7 Bac4 Nde6 Bd5 Nf4 Ra4 Kc8 Be7 d7 Bc5 d8B Qf6 Qd1 Nh5 Ba8 Nhg3 Nfg2 c1B Rd3 Bf4 Re3 Bg5 Qc1 Bd1 Na6+
K1Qnn1r1/BnQ2q2/R4k2/1bqq4/N3RbR1/Rn3B1R/2N3Q1/r3q2n b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 f5 d4 c5 e4 h5 g4 b3 e5 c4 e6 b2 b6 c3 g5 c2 g6 h3 g7 h2 d6+ Kf6 e7 h4 e8R h3 d7 Ba6 b7 Nc6 b8Q Qc8 d8R Bd6 d5 Bb5 Be3 c1N Bg2 Nb3 Ba7 Nba5 Nc3 b1N Qc7 Nb7 Nge2 Be5 Rd7 Ncd8 Ra6+ Bd6 Qf1 Nd2+ Kf2 f3 Ke3 f4+ Kd4 f2 Na4 f3 Re4 Nc5 Qg1 f1Q Rde7 f2 Bf3 Ncb7 Qg2 Qe1 Re3 f1Q Ra3 Be8 Re4 Nb3+ Kc4 Qff2 Nd4 Qe6 Qc8 Bf4 Nc2 Qeb6 d6 Bb5+ Kd5 Qff1 Rg1 h1N d7 h2 Qc7 Nh6 g8Q Nhf7 Qe8 Nfd6 Qeg8 Ne8 Qf8+ Nf7 d8R Rg8 Qfc5 Qff2 Rd7 Nfd8 Rh7 Ng3 Qc8 h1Q Q5c7 Qff1 Qd2 Qhg2 Rh3 Nh1 Qe2 Qg4 Qd2 Qh5+ Rg5 Qg2 Qf2 Qh7 Rg4 Qf7+ Re6+ Kf5 Ra2 Qgf1 Qg2 Qee2 Ra5 Qee3 Nb2 Qfe1 Bb8 Ra6 Ba7 Nbd6 R2a4 Q3c3 Re4 Qh8 Raa4 Qhh5 Ra2 Ra3 Na4 Qbg1 Rb2 Ra1 Ra2 Nd4 Kc5 Qg5 Kb6 Nb3+ Rd4 Qge3 Ra3 Q3c3 Ree4+ Kf6 Rc4 Qgd5 Rc5 Bc4 Ra5 Bb5 Ra6 Qb4 Bb8 N6b7 Ka7+ Qbd6 Ka8 Qc5 Ba7 Qde6 Bb6 Qed5 Ba7+
1rb1q1Rb/1bQ1R3/N1bnB3/2NR2r1/5Q2/1qNqNb2/1rb2B1k/1N2K3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 b4 Ke7 e4 Kd6 c4 Ke5 b6 d5 b5 a5 c5 h5 c6 f5 b7 h4 b8N a4 b6 h3 c7 g2 b7 d3 g6 d2+ Kf2 Kf4 g7 d4 e5 a3 e6 h2 e7 d3 e8R a2 Qe1 Ne7 g8Q Bg7 Rf8 Qe8 Nc6 Rb8 Bb2 d1B Nd4 d2 Qee6 Bf3 Bc4 d1B Qe1 Bc2 Qb4 g3+ Ke1 Rh3 Qh7 Bh8 Qh5 Bc6 Ngf3 g1R+ Bf1 g2 Ng5 Kg3 Qh7 f4 Nb5 f3 Ne6 Rh6 N5c3 Nf5 Rg8+ Rg6 Qhe7 Rg5 Nc5 Nd6 Bc1 Kh3 Be3 Kg3 Qe5+ Kh3 Qbf4 f2+ Kd2 Bf3 Bc4 f1B Bf2 B1e2 Qg7 Bc6 Be6+ Bg4 Qd7 Re1 Rf1 g1Q Qdf7 Re4 Re1 h1B Re2 Qh2 Ke1 Rb4 Re5 Qg2 Rd5 Qg3 Qd7 Qd3 Qe7 B8d7 c8N Rb2 Nb6 Bc8 Qc7 Kg2 Nc4 Bf3 Qf8 Kh2 Ne3 Ra8 b8N B6b7 Nba6 Rb8 Nd2 Bc6 Rd1 a1Q Ndb1 Qa3 Re5 Qb3 Qf4+ Rg3 Bd7 B6b7 Re7 Bfc6 Be6 Bhf3 Qf8 Rg5 Qf5 Qe4 Rd5 Qd3 Qf4+
BN4n1/1NR3K1/q1b3b1/N1qkQQQ1/2r3rQ/b1r4b/3r3Q/q1b3BR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 Kf5 h5 g4 f3 b4 h3 c4 d3 e4 a4 b6 h2 b5 a3 g5 d2 b7 a2 g6 f2 b6 h4 g7 h3 Qg4 d1R Be2 f1B Bf3 Rd4 Qg2 Nc6 b8N Bd3 b7 Ne5 Nd2 Qc7 Qf2 Ra3 Qh4 Rc3 Ne2 Qc5 Nb3 f6 Rb1 a1B Be3 Bb2 Nf4 Bc1 Ne6 Rh6 Bg1 Rg6 Na5 Rg4 Rb2 Bb1 Rc2 Rd2 Bd4 Be7 Nd8 Bf8 Re1 h1Q Bg1 h2 Rd1 Qg2 Re1 h1B Rf1 Qgf2 Rd1 Qb5 Re1 Qa6 c5+ Ke7 c6 Kd6 c7 Qc5 Rd1 Rd4 Re1 Rdc4 Bg2 Nf3+ e5+ Kd5 e6 d6 Bh3 Ne5 Rf1 Bd7 c8Q Bc6 e7 Bg2 e8Q Be7 Rf3 Bf1 Bg2 Bf8 Bh1 Bh3 Rf4+ Rf3 Qc7 Bb5 Qh8 Nf7 Bh2 Qd4 Bg2 Rc6 Nc4 Kc5 Ke6 d5+ Kd7 f5 Qa5 Ne7 g8Q Qe3 Bh1 d4 Qh4 d3 Qgg5 d2 Rd4 Rc8+ Nbc6 d1R b8Q Ng8 Qbc7 Qa3 Ke6 Rb3 Rf4 Rd2 Rf1 Qa1 Bd5 f4 Rh1 f3 Bg1+ f2 Qh2 Be7 Rc3 Bg6 Rc2 Qa7 Nb8 Kd4 Rc3 Bea3 Ba8 Rb4 Nb7 Rc5 Ne3 f1Q Nc4+ Qf2 Qee7 Be8 Qb5 Rc7 Nca5 Qa6+ Rc6 Rb3 Qf1 Rc3 Qf5 Rc8 Qe1 Ne5 Qeg5 Qe3 Rb6 R8c4 Rc6 Qb5 Rc7 Bc6 Q2f2 Qa6 Qh2 Ne7 Kf6 Ng8+ Kg7 Kd5 Nd8 Qd4 Ndb7 Qc5 Qexe5#
RBn1q3/3q3Q/1NBn3n/b2Rn1K1/1r3Nn1/2BRnq2/B2Qqk2/1B5b b - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 Ke7 e4 Kd6 b4 Ke5 c4 Kf4 g6 f5 e5 d5 b6 h5 b5 d3 g7 g2 b7 Kg3 Ke3 a4 b6 a3 c5 h4 c6 h3 c7 a2 e6 h2 e7 d4+ Kd2 f4 e8R f3 Re7 f2 Re2 Qd7 Nf3 g1N Ba3 Bb4+ Nc3 Nc6 b8Q Nh6 g8B Ne7 b7 Nh3 Qc2 Ba5 Qa8 Ng5 b8B Ngf7 Ba7 Nd6 Ne5 Bb7 Bh3 f1Q c8B Qf3 Rhb1 h1N Rb5 Nf2 Re3 Bd5 Ba6 Nec8 Nc4 Rh7 Bc1 Rf7 Qb1 Rf4 Bb7 Bc6 Rd5 Re4 Ke1 d2+ Kf1 d1N Bd2 d3 Nb6 Rc4 Bb8 Rb4 Qb2 Qe8 Qa7 Qd7 Be1 d2 Red3 Ne3+ Kg1 d1Q Qd2 Qde2 Bf7 Bb5 Bc6 Ba6 Qc7 Bb7 Bg6 Qe8 Qh7 Ba8 Nca4 Qd7 Nc5 Qe8 Ne6 Qd7 Rc1 a1Q Nf4 Qe5 Ra1 Qee8 Ra4 Kh4 Bf7 g3 Bf5 g2 Kh2 g1N B7e6 Nh3 Ra2 Ng5 Bg6 Ngf7 Bgf5 Qe4 Ra1 Ne5 Bg8 Kg5 Kg3 Nfg4 Ra4 Kf6 Kh4 Q4f3 Rda3 Bb7 Bb1 Ba8 Rad3 Bb7 Qg7+ Kf5 Be6+ Ke4 Kg5 Qff1 Qh7+ Kf3 Qa2 Qh3 Bc3 Kf2 Qd2 Qf3 Rc5 Ba6 Bea2 Bc4 Rb5 Bd5 Ra3 Qh3 Ra4 Bh1 Rbd5 Qf3 Nc4 Bb6 Ra8 Ba5 Nb6
4K2B/b1BQ3n/Npr2B2/1rkB4/Q2n2N1/b2n1BR1/2bn1q1R/3nQr2 b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 e6 f4 a2 f6 h3 f5 h2 g5 b6 g6 h4 g7 c6 f7 h3 f6 Rh7 Bg2 Rh6 Nf3 Ra5 Ne5 Rb5 Ng4 c5+ Kc4 e5 d4 e4 Na3 e3 Bb2 e2 Nc2 e1B Nb4 Bh4 Na6 Bg3 Qa4 Bf5 Rag1 a1N Be4 Bf4 Rg3 Nc6 Bg2 Be7 f8B Nb3 f7 Nf6 g8B Nh7 Bg7 Qf8 Bh8 Bg6 Rf1 h1N Rf2 h2 Bc3 Qe8 f8Q Qf7 Qe8 Qf5 Rc2 Nf2 Bh1 Bf8 Qe1 Nd1 Rf2 Qc2 Bf3 h1R Rh2 Rf1 Bf7 Qf2 Bb2 Kd7 d6 Nd2+ Kd5 c4+ Nc5+ Kc8 Ke6 c3 d5 c2 d7+ Kc7 Na6+ Kb7 d8Q c1N Kd7 Bb8 d6 Ba7 Bb3 Bc2 Bbd5 Nd3 Ke8 Rf6 d7 Ba3 Qde7 Re6 Bbf6 Rd6 Nb4 Kc7 Q7e6 Nd4 Qf7 Rc6 d8B+ Kd6 Bc7+ Kc5 Qfe6 Bc1 Qd7 Ba3 Na6#
2R3r1/rqN1N3/1knq4/2p1RR1r/n2n2QQ/bR6/2BrQ1KB/1bR4r b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 g4 h5 e4 f5 d4 c5 b6 h3 b7 Kc7 g5 f3 g6 h2 d6+ Kb6 d7 f4 e5 b3 d5 b2 g7 h4 e6 h3 e7 Ra7 e8R Nc6 d6 Rh5 Bd3 Nh6 g8Q Nf5 Re5 Bg7 Na3 b1N Qe2 Nc3 Bc2 Na4 Nb5 Nfd4 b8R+ Bb7 Kf1 f2 Nf3 Qf8 Rg1 h1Q d8R h2 d7 Qd6 Nh4 Qf3 Qgc4 h1R Ng6 Qb3 Kg2 f1R Rh8 Rd1 Rhc8 Rd2 Nc7 Qb2 d8Q f3+ Kg3 f2 Qh4 f1R Kg2 Bh8 Ne7 Rf8 Rf1 Rd8 Qe6 Rg8+ Qeg4 Bf6 Rff5 Bg5 Ra8 Ba6 Ra3 Bd3 Ra1 Qb4 Bb2 Qb5 Rc1 Qa6 Rab8+ Qb7 Bd1 Bb1 Bc2 Rd3 Ba1 Bd2 Bb2 Bb4 Bc3 Ba3 Be1 Qd7 Bg3 Qd6 Bh2 Rd2 Rcf8 Rf1 Rbc8 Re1 Rf3 Rf1 R8f5 Rh1 Rb3+
2r3k1/n1Q1b1BB/2p2B1R/3N4/2Kn3r/3N3b/nr1q1QBR/qRnB1n2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 f5 Ke2 Kf7 Kd3 h5 g4 c6 e5 h3 g5 h4 e6+ Kg7 b6 b3 d6 f3 g6 f2 e7 b2 e8B h2 b7 h3 d7 f4 Ne2 f3 Bg2 f1Q Ra2 f2 Nc3 b1R Bb2 Ne7 Qe1 Kg8 g7 Rh4 Bh5 Na6 Nd5 Nb4+ Kc3 Qg1 b8R f1N d4 Qa5 Ba1 Rb2 d8B Bg4 Qf2 Nc8 Rb6 Na7 Bf6 Rc8 Nc1 Be7 Nd3 Be6 Kc4 Bf5 Ra3 Na2 Bd1 Qd2 Rb4 Ng3 Rc3 Ne2 Rc1 Qge1 Rb1 Nec1 Rb7 Be6 Rd7 Bg4 Rd6 Bf5 Be5 Bd7 Rh6 Bf5 Bf6 Qe5 Re1 h1N Rg1 Ng3 Rh1 Nf1 Rh2 Kf7 g8B+ Kf8 Rh1 h2 Bh7 Bd7 Nb6 Bg4 d5 Qee1 d6 Bh3+ Qd4 Qe5 d7 Qea5 d8Q+ Kf7 Rg1 h1N Qc7 Nhg3 Rh1 Nge2 Rh2 Qa3 Qdf4 Nd4 Qf2 Kf8 Bhe4 Kg8 Nd5 Rb6 Bc3 Qab2 Bg7 Qa1 Bg6 Rb2 B6e4 Nc2 Bcf6 Nd4 Bh7+
2k2B2/5R1B/3BN3/r1R2rQ1/q1b1Rq1n/1qn1Npbb/B1Bq3n/K6Q b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 g4 Kd7 d4 f5 Kd2 c5 Kc2 h5 Kb2 f3 e4 h3 b6 h4 b7 b3 d6 f2 e5 c4 d5 f4 g5 f3 g6 h2 g7 h3 Na3 Qg5 Nc2 Rh5 Ra7 c3+ Ka1 Nf6 g8B Qf4 Ne3 c2 Bh7 Rf5 Ne2 Nc6 Nd4 Ne7 Ba3 Ng4 Bd3 f1B Ne6 c1Q+ Bb1 Ba6 Re1 Qd2 Bc2 h1Q Bb4 h2 b8B+ Bab7 Ra5 Ba6 Rc5 Ng6 Re2 Qg2 Qh1 Nh4 Bc7 Bc4+ Ba3 Ke8 d7+ Ke7 d8R Ra5 Re8+ Kd7 d6 Bg7 Rf8 b2+ Kb1 Bf6 Rf7+ Be7 Re1 Qb4 Bb8 Qgd2 Re2 Qa4 Re1 B4a6 Ka2 b1N Ka1 Bc4 Bc7 B8a6 Re2 Kc8 d7+ Kb7 d8Q Nc3 Re1 Bd6 Qg5 Bf1 Re2 Bh3 Re1 Bc4 Re2 Be7 Bd6 Qb3 Ng2 Qa4 Re4 Qb3 Ne3 Qa4 Nc7 Kc8 e6 Bf6 e7 Be5 e8B Qb3 Qc1 h1Q Qg1 Qhg2 Qh1 Nh2 Bf8 Qd7 Ne6+ Bc7 Bd6 Qd2 Bf8 Qda4 Bb5 Bd5 Bbd3 Bc4 Bb1 Qd6 Ba2 Qe5 Bc2 Qf6 Rd5 Bg3 Bad6 Qe5 Rb5 Qf4 Rc5+
r2R2Q1/2bb1NB1/3br3/4b1r1/Qnrq1Rpk/1N1NQ3/1Nn4N/1B3b1K b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Ke7 Kg2 Kf6 h4 g5 e4 c5 d4 b3 e5+ Kg6 h5+ Kf5 e6 b2 h6 g3 d6 c4 e7 c3 e8N c2 d7 g4 b6 Kg5 b7 f5 d5 Nf6 h7 Na6 b8Q Nb4 d6 Nfd5 Nd2 b1R Qa7 Rg8 Bb2 c1B h8Q Nc2 Qe3 Ndb4 Bg7 Bb2 Bd3 Rc1 Nb3 Be5 Ra4 Qf6 d8N Bd7 Rh4 Be7 Kh1 g2+ Kh2 Bf8 Nc6 Qd8 Rh7 Qb6 Rh6 Qd4 Rf6 Be7 Rf8 Bd8 Qh7 Bc7 Qg6+ Kh4 Qf7 Na1 Bb1 Rc4 Qd5 Nac2 Nf3+ Kh5 Qe6 g1B+ Kh1 Bh2 Qd5 Bg3 Nh2 f3 Qe6 f4 Qd5 Na6 Nb4 f2 Nd3 f1B Qe6 f3 Qd5 Bc6 d7 f2 d8N Bd7 Nf7 Kh4 Ned6 Nab4 Rd8 Re8 Qe6 Re7 Qg6 Re6 Qh7+ Rh6 Qg8 Re6 Nb7 Bed6 Nb2 Bge5 N7c5 Bd3 Qg1 f1R Qe4 Be2 Ncd3 Rf5 Qge3 Bf1 Qc6 Na6 Rb4 Rh5 Qa4 Rg5 Rbb8 Nab4 Rb5 Bf4 Rf5 Bfe5 Rf4
N1b3Qq/1nr3q1/5q2/8/bBnpN1R1/QBb4R/bbB1KNNN/3n3k b - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 e4 Ke7 c4 Kd6 b4 Ke5 b6 h5 b5 f5 b7 d5 g6 d3 b6 h4 g7 d4 c5 a4 c6 d2+ Ke2 Kf4 e5 h3 c7 h2 e6 g2 e7 Kg3 e8B a3 Bh5 a2 Nc3 f4 Bb2 f3+ Kd3 f2 Nf3 g1Q Ba3 Ne7 g8N Nec6 Nh4 Nd7 b8Q Bb4 b7 Rh7 Bg6 Nc5+ Ke2 Qf6 Ng2 Na5 Nh6 Nc4 Qc1 d1N Bc2 Ba5 Rb1 a1B Bb4 Bb2 Ne4+ Kh3 Ra1 g3 Ng4 Re7 Qa8 Rd7 b8N Nb7 Na6 Rh7 N2e3+ g2 Nac5 Re7 Nd3 Qh8 Ba3 Bac3 Bb4 Rg7 Ra5 Re7 Rg5 Rh7 Kf3 Re7 Be2 Qf1 Rg8 g1Q Ng2 Qe1 Qg5 f1B Qa3 Qeh4 Qd5 Rh7 Rg7 Qe7 Qg8 Qe5 Rf7 Rg7 Rf4 Qf6 Bb3 Bf5 c8N Rc7 Nb6 Bc8 N2e3 Qd6 Na8 Qdf6 Nh6 Qgg7 Nhg4 Qe5 Ng2 Qef6 Rg1 h1B Nh2 Nde3 Bed1 Be2+ Kf2 Bf3 Bdc2 Bd1 Bb1 Bc2 Ke2 Nd1 Ba4 Bb3 Bc2 Ba2 Rff1 Qgh7 Bab3 Q7g7 Nh4 Bg2 Rf5 Bh1 Rg4 Bg2 Rh5 Bh1 Nd6 Bc6 Ne4 Ba4 Ng2+ Qh4 Rh7 Qhh6 Nf1 Qf6 Nfe3 Kh2 Nf1+ Kh1 Nh2 Qhg5 Rh3 Qgg7 Ndf2+
K1Nqn2q/n1p5/1N2R1qr/3Bbr1r/R4N2/nB2nR1N/k4NQQ/7r b - - 0 1 illegal: No possible last move, all moves rejected
3r1NrR/r7/1r1r4/RB1q3r/Q1rq2Bk/bB1RB3/2p1n1Bq/4K1NQ b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Ba3 f5 Bb2 g5 Bc1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Bg2 Nc5 Bh3 Ne4 Bf1 Ng5 hxg5 Kf7 Ba3 Ke7 Bc1 Ke8 e4 Ke7 d4 b5 a4 h5 g6 Kf6 a5 Kg5 e5 c5 e6 b3 f6 b2 f7 c3 g7 h4 a6 b4 d5 c2 a7 h3 d6 b3 e7 f2+ Ke2 c4 e8B h2 d7 c3 Ra3 g3 Nd2 b1Q Ra6 f3+ Ke3 b2 Bc4 f1R Ne4+ Kh4 Nd2 f2 Ke2 g2 Qe1 Rh5 Bb3 Nf6 g8B Qa1 Bh7 b1R Ba2 Rb6 Bf5 Nd5 Nc4 Ba3 Be3 c1R f8Q c2 Qg8 Qd4 Bb3 Ra1 Ra5 Qb8 Qc1 Rd1 d8R f1R Bg4 Rf4 Ne5 Qd6 Rd7 Rd8 a8B Rd2+ Ke1 Nc3 Qg6 Q6d5 Qc6 Ne2 Qa4 Re4 Rd6 Ra2 Bb5 Rd3 Nd7 Ra1 Nh3 g1R+ Kf2 Rg2+ Ke1 Ra2 Nf8 Rg3 Rf1 h1Q Ng1 Qh2 Rh6 Rdd6 Rh8 Rg2 Rf3 Rd8 Bf5 Rg8 Bg4 Q5c5 Kf1 Rh7 Qb4 Qd7 Rf2 Rc4 Ra7 Nc3 Bg2 Rh5 Rd2 Ne2 Nh3 Bb2 Qa1 Raa6 Qba4 Ba3 Ra8 Rd5 Rd3 Qd4 Kf2 Qb7 Qh1 R5d6 Ng1 Qbd5 Ke1 Rb7 B4f3 Rab6 Ra5 Ra7 Bg4
1bQn1N2/nQ4R1/nB3n1K/1bbn4/1B1Q4/2pR4/1nbBB1B1/qk2N1n1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 h3 h5 Nc3 b5 Nb1 g5 Qc2 f4 Qa4 Rh7 Qd1 Rf7 h4 Rf5 gxf5 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Kd7 Na3 Ke7 Nb1 Ke8 Kf2 Kd7 e4 Kc6 d4 g3+ Ke1 b3 Kd2 b4 a4 b2 g6 g2 d5+ Kc5 f6 Kd4 a5 c5 e5 b3 d6 h4 a6 h3 g7 f2 d7 f3 a7 h2 a8Q Na6 e6 Nh6 g8Q Qa5+ Nc3 b1B d8B b2 f7 Bc2 e7 Bd7 e8B Bb5 Be2 f1N+ Ke1+ Nd2 Kf2 b1N Kg3 f2 Kf4 f1N Kg5 Na3 Nh3 g1N Nf2 Ne3 Rb1 Nd5 Nce4 c3 Nh3 c4 Bc7 Bc5 f8B Nf7+ Kh5 Qa4 Bc6 Nd8 Nef2 Qa5 Nd3 Ne4 Rb3 Nef6+ Kh6 Ke4 Bb2 Ke3 Qa1 Kd2 Ne1 Qa4 Nf4 Qa5 Qa2 Qa4 Ba1 Kc1 Ng6 Qa5 Qb7 Qa4 Rb4 Qa5 Qb3 Qa4 Bb2+ Kb1 Bb6 Bd1 Bd7 c2 Qe6 c1B+ Qbe3 c3 Rd4 Bc4 Qg4 Bc2 Kg7 Bb4 Rd3 Nb5 Qed4 Bf4 Bc1 Na7 Bd2 Qa1 Bfc5 Bb5 Nf8 Bb8 Kg6 Nh3 Rg1 h1N Kh6 N1f2 Qe6 Nd1 Rg7 Nb2 Qe8 Ne6 Qec8 Nd8 Bdg4 Ng1 Bh3 Ba3 Bg2 Bb4 Ba5 Ba3 Bcb6 Bc5 Bb4
kq6/nN1B1N1r/2q2Q1N/1p1rBq2/nn1R3K/1Q6/p3bR1b/bQ2NN2 b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 f4 Kd7 Kf2 h5 g4 c5 d4 Kc7 g5 e5 f6 b5 g6 Kb7 g7 a2 d6 e4 d7 c4 d5 h3 Kg3 h4+ Kg4 h2 f5 h3 d6 e3 f7 e2 f6 e1B Qd5+ Nc6 Bd2 c3 Bf4 c2 Be5 c1N Nf3 Bg3 Qb3 Na7 Ne1 Rh7 Nd2 Ne2 Rd1 Ne7 g8N Nc3 Nh6 Bg7 f8Q Ned5 f7 Na4 Rg1 h1Q Rg2 h2 Rf2 Kb8 Bh3 Nb4 Nf1 Qc6 Rd4 h1Q Qe7 Bh2 f8Q Qg1+ Kh4 Qg6 Qff6 Qf5 Qg6 Qdb6 d8N Be6 Nb7 Bc4 Qef6 Be2 d7+ Qbc7 Nd8 Bh8 Nf7 Kb7 Qd5 Rd8 Qb3 Ka8 Bg4 Qb8 Bh3 Re8 d8N Bg7 Nb7 Rd8 Qg2 Rd5 Qe4 Bf8 Qeb1 Bc5 Rdf4 Bd4 Rg4 Ba1 Rd4 Qfc2 Be6 Qf5 Bd7
NB5R/2Nb2N1/2N2Qp1/qq1r1BK1/R3b1nQ/1Npb2R1/5k2/1r1n2qn b - - 0 1 legal: proof: c4 d5 a4 dxc4 h4 e5 f4 exf4 h5 b5 axb5 g6 g3 fxg3 h6 Bg7 hxg7 Qd6 Rh5 Qd3 Rh1 Qd8 e4 Ke7 Ke2 Kf6 Ke3 Ke5 b4 c5 d3 h5 b6 f5 b7 a5 b5 a4 b6 h4 Be2 c3 Bd2 a3 Rh2 g2 Qc2 c4 Bg4 a2 Nh3 Rh5 Qb2 Bd7 Ng5 h3 Ne6 Nc6 b8N Qe8 b7 Nd4 Na6 c2 b8N c1N Nec7 Nf6 g8R Ne2 Rh8 g1Q+ Rf2 Ra7 Na8 h2 N6c7 h1B Bh3 Ng3 Nc6+ Kd6 Kf4 Kc5 e5 c3 e6 Ng4 e7 Be4 Rg2 Nh1 Rg3 Nc2 d4+ Kc4 d5 Nce3 d6 Kd3 Qc1 Rb7 Qe1 Qb8 e8N Rb3 Na3 Qb5 Ng7 Rb1 Nc2 Rg5 N2d4 Rh5 Rg2 Nd1 Nb3 Rg5 Qh4 Rh5 Rg3+ Ke2 Bf1+ Kf2 Qf6 Rh7 Kg5 f4+ Nd5 f3 Bh3 Rh4 Bf4 Rh7 Be5 Rh4 Ndc7 Rh5+ Kf4 Ke1 Qh4 f2 Qf6 f1B Qh4 Nge3 Bf5 Ng4 Qf6 Bfd3 Qh4 Be8 d7 Kf2 d8Q Bd7 Qdf6 Rg5 Bd6 Rh5 Be6 Rc5 Bf5 Rd5 Kg5 Rb2 Rb1 a1Q Rc1 Qa3 Ra1 Qaa5 Ra4 Rb1 Nce6 Qba6 Bb8 Q6b5 Nec7
q6B/r1R3R1/1R2kp1N/1nqR4/n1nQr2b/1B1bb3/KQp1Br2/N5R1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 e4 Kd7 d4 c5 Kd2 g5 Kc2 c4 Kb2 g3 h4 b3 d6 g4 e5 g2 b6 g3 b7 f3 e6+ Kc6 d5+ Kc5 d7 Kd6 h5 f2 e7 Ra4 e8B Be7 h6 Na6 b8R Rh7 Ne2 g1B Qd4 g2 Nd2 Bh4 Ng3 Nc7 Be2 Ne7 Rb6+ Nc6 Kb1 c3 Bb2 Rb4 Ra7 Nb5 Rc7 c2+ Ka1 Ke7 d6+ Ke6 Nf5 Ba6 Bc3 b2+ Ka2 b1N Nb3 f1R Na1 Qa8 d8R Rg7 h7 Na5 h8Q Rf2 Nh6 Nc4 Bc6 Rh7 d7 Rg7 Rg8 Ra4+ Kb3 Rg4 d8R Re4 Bb2 N1c3 Rg7 Ra2 Rd5 Na4 Rh2 Rf5 Rh1 Be3 Rd1 g1Q Bc3 Qg5 Rg1 Rf2 Qb8 Nab2 Qb7 Ra5 Qb8 Na4 Ka2 Qe5 Qf8 Qg5 Qb4 Qe7 Qb2 Qc5 Qd3 Bc8 Be5 Ra7 Qdd4 Bb7 Rh7 Ba6 Bh8 f6 Rhg7 Qcf8 Be8+ Qd6 Bc6 Qc5 Rd1 Na5 Rdg5 Nd6 Rdg1 Bd3 Bb5 Nc4 Rd5 Na3 Bc4 Nb5 R1g2 Qg8 Bb3 Qa8 Rbb7 Nc4 Rg1 Bf4 Rb8 Be3 Rb6+
Q3r1Qb/2n1N1q1/bqp4n/3b2N1/3RnN1p/BRr4q/1KQ4Q/3BQk2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Ke7 d4 Kd6 Kd2 h5 Kc2 f5 g4 h3 b6 b3+ Kb2 f3 g5 h4 b7 h2 g6 f2 g7 c6 Ra4 f4 Nh3 f3 Ng5 Be6 Nc3 Nh6 g8Q Qb6 Qc2 Bg7 Be2 f1Q Bd1 Na6 b8Q+ Nc7 Rc4 f2 e5+ Kd7 d6 Qg2 d5 f1B Ra4 Ba6 Rd4 Bf6 Re1 h1Q Re3 Ra7 Qa8 Qhh3 Qgb8 Rd8 Rg3 Bh8 Rf3 Ke8 d7+ Ke7 Rfd3 Rg8 d8N Re8 d6+ Kd7 Rf3 Bd5 Nde6 Qgg4 Nf4 Rb7 Nh7 Qg7 Ng5 Ra7 Nce4 Rb7 Ng3 Ra7 Nf5 Rb7 Ka3 b2 Rb3 b1N+ Kb2 Nd2 Ne7 Ne4 Bd2 Qa7 Bb4 Rb5 Ba3 Rc5 Qb4 Rc4 Qbd2 Rc3 Qh2 Qb8 Nc8 Qb6 e6+ Kd8 e7+ Kd7 Qcd2 Qf7 Qde2 Qg7 Qc2 Rg8 Nf3 Nf2 Kc1 Qh7 Nd3 Ke6 e8Q+ Kf5 Qe1 Ne4 d7 Kg4 d8Q Qg7 Kb2 Rf8 Nf4 Rg8 Qee2 Rf8 Ne7 Rg8 Qh1 Kg3 Ng5 Rf8 Qdc8 Rd8 Qe6 Re8 Qg8 Nf2 Qed2 Ne4 Be2 Kf2 Bd1+ Be2 Qh2+ Kf1 Qe3 Ba6 Qe1+
nk4KQ/1R1nb3/1rB3p1/Q1q1QrNn/2RbB3/Br2npb1/1B4B1/5N2 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 Nh3 c5 Ng1 cxd4 g4 hxg4 b3 a5 b6 a4 Ra2 a3 Ra1 Bb7 Nh3 Bc6 Ng1 Ba4 bxa4 Rh7 Kd2 Rh6 Ke1 Rh8 Kd2 d5 Kd3 Kd7 e4 Kc8 h4 f5 c4 f3 b7+ Kc7 h5 f2 e5 f4 a5 g3 h6 g2 h7 a2 c5 g6 c6 f3 e6 Ba3 a6 Qe7 a7 Na6 Qd2 Rf8 a8B Nf6 Rh4 Nd7 Nh3 g1B Bg2 f1N Ng5 Bf2 b8B+ Kc8 c7 Rf5 Qa5 Ng3 Nd2 Nh5 Rg4 Qb4 e7 Bg3 Bb2 Rhf8 Bc6 Rg8 Bb5 Rgf8 Ba4 R8f6 Rc1 Rb6 h8Q+ Kb7 e8Q a1B c8B+ Ka8 Bd6 Ka7 Be7 Kb8 Nf1 Nc7 Bc3 Na8 Bf8 Qd6 Qee5 Qc7 Bb7 Qd6 Kd2 d3 Ke3 d4+ Ke4 d2 Rc2 Qc7 Kd5 d1N Rf4 Rb3 Ke6 d3 Rd4 Ne3 Be4 B1b2 Bb5 Bc5 Ra4 Bba3 Bb2 d2 Rd4 Bb6 Rc6 Bd6 Rdc4 Bbc5 Ba4 Rb6 Bb5 Bd4 R6c5 Qc6 Ba4 Qb5 Rc7 Qb4 Bac6 d1R Ba1 Rd3 Bb2 Nhf6 Kf7 Nh5+ Kg8 Rb3 Be7 Qb5 Bf6 Bf8 Be7 Qb4 Bc5 Be7 Bd6 Qb5 Bda3 Qc5 Rb7+
3r3k/rpK2Qn1/3N1rbN/B2B4/N2N1q1N/Q3rb2/R2np2R/2B3nb b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 axb4 e4 fxe4 f4 g5 h4 gxf4 g4 Na6 g5 Bh6 g6 Bg5 hxg5 Nb8 Ke2 Kf8 d4 Kg7 a4 e5 a5 h5 a6 c5 d6 e3 Kf3 e2 Ke4 e1R+ Kd5 f3 a7 h4 d7 h3 Kd6 h2 d5 b3 Qc2 e4 Qc4 e3 Ra6 b2 Bd3 f2 Nc3 f1N Nf3 b1B Ra2 Ne7 Be4 Nd2 Nh4 Nbc6 Na4 Qf8 d8N Nd4 Nf7 Ne2 Kc7 Nf5 d6 Ng1 d7 e2 d8B Rf1 Qe6 c4 Bd5 c3 Nd6 c2 Qe3 Be6 Qa3 Kg8 g7 Qf6 Be4 Bd5 Bf3 Kh7 g8N Ng7 Nh6 Qf4 Bg2 Rg8 g6+ Kh8 Bf3 Bc6 Bd5 Re8 N6f5 Re3 Nd4 Rb8 a8Q Rf2 Bc4 Bf3 Bd5 Rf1 Qa6 Ra8 Q6d3 Ra7 Qf5 Rd1 Qf7 Rf1 Kc8 Rf2 Ba5 Rf1 Bb2 c1R+ Kb8 Rc7 Bc1 Rd7 Kc8 Rd8+ Kc7 Nh3 Rg1 h1B Rg2 Bd3 Rh2 Ng1 Nb5 Qb4 Bb3 Bfg2 Qf3 Nh5 Qf7 Rf6 Bd5 Qf4 Nd4 Bf3 g7+ Kh7 g8N+ Ng7 Ne7 Kh8 Ng8 Bg6 Nh6
1Rr1bN2/r3rR2/5q1Q/3qk3/Br1n1n2/N1r1p3/1N1b2Bp/RK2RQ1R b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f5 Ba3 fxe4 axb5 Kd7 b6 Ke8 b5 Qd7 Bd6 Qd8 Bb4 axb4 f4 Kd7 g4 Kd6 d4 e5 Kd2 c5 Kc2 h5 g5 h3 g6 c4 g7 e3 f5 e2 b7 e1R f6 h4 b6 h2 f7 c3 Nf3 e4 Ne5 h3 Na3 b3+ Kb1 b2 Bg2 Ne7 g8B Ra7 Nd3 Nbc6 b8R Bh6 f8N Bd7 b7 Bd2 Ra8 Ng6 b8R Re3 Qf1 Nf4 Bf7 Qg5 Be8 Qf6 Rb7 Rh7 Rab8 Re7 Rc7 Bf5 Rcb7 Bg6 Bd7 Be8 Rc7 Nd8 Ba4 Nde6 Rcb7 Rh7 Rf7 c2+ Ka2 b1R Nb2 Bb5 Re8 c1R Rb8 Rc4 Re8 Rbc1 Rb8 R1c2 Kb1 Rec3 Re8 Re7 Rb8 Rb4 Re8 Kc7 d6+ Kc6 d7 Kd6 d5 e3 d8R+ Ke5 d6 Nd4 d7 Rg7 Rb8 Rc8 d8Q R2c3 Rg1 h1Q Qb6 h2 Rd8 Be8 Rd7 Qh4 Qh6 Qf6 Rc7 Rd3 Rc1 Rdc3 Re1 Ra7 Bh3 Qd5 Bg2 Rh7 Rh1 Rg7 Rd7 Re7 Rc7 Re6 Rg7 Ree7 Rf7
1Q5r/2NN1B2/qQNnb1qN/3b1k2/1RppnNq1/qr5R/1Q6/2b2B1K b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 c4 Nf6 c5 Ng8 d4 Na6 d5 Nb8 d6 Kf7 Be3 cxd6 c6 Ke8 Bc5 dxc5 b4 Kf7 g4 Kf6 f4 a5 Kf2 d5 Kg2 h5 b6 e5 c7 e4 b7 h3+ Kh2 c4 b5 e3 b6 e2 Qd2 e1Q Na3 a4 Rb1 d4 Nb5 a3 Ne2 Bh6 Rb4 h4 Na7 a2 Nc6 a1Q Qb2 Bd7 c8B Qe8 Kg1 Ne7 g5+ Kg7 g6 Kf6 g7 Qc3 Kh2 Na6 Kg1 Nc5 g8N+ Kg7 f6+ Kg6 f7 h2+ Kg2 Ra3 f5+ Kg5 f8Q Qg6 b8N Ne4 f6 Nf5 Qd8 Nfd6 b7 Bg4 Bd7 Be6 f7+ Kg4 f8Q Bc1 Na6 Qd3 b8N Rc3 Nc7 Qa6 Ne8 Qd1 Qc7 Qda4 Qa7 Rb3 Nc7 Qa3 Be8 Kg5 Nf4 Kg4 Bd3 Kg5 Bf7 Kf5+ Kf3 h3 Nd7 Qa1 Qfb8 Q1a3 Rg1 h1Q+ Rg2 h2 Qab6 Qe1 Rg3 Qe3+ Kg2 Qe2+ Kh1 Qeg4 Bf1 Nd2 Kg2 h1B+ Kg1 Bg2 Rh3 Bgd5+ Kh2 N2e4 Kh1 Rh5 Qd8 Rh4 Qdb8 Rh8 Nh6+
q2RNrk1/3Kp1bp/6n1/4rQRq/1n1Nn2R/2B1Bb1r/1R1Q2R1/2r3N1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b4 a6 b6 Bd7 b7 Nf6 b5 Ng8 b6 Bc8 Bb5+ axb5 Ke2 Kf7 Ke3 c5 Kf4 h3 Ke5 c4 f4 c3 d4 b4 g4 c2 f5 h2 d6 e3 d5 e2 d7 e1R+ Be3 c1N d6 b3 g5 b2 g6+ Kg7 Ke6 Ra7 Nc3 b1Q Ne4 Re2 Ra2 Qe8 Nf6 Ra3 Qd2 Na6 b8B Nb3 b7 Qb2 Bc7 Qa1 b8R Bb7 d8N Nc1 d7 Bc6 Rbb2 Nb4 Be5 Ncd3 Bc3 Bf3 Nc6 Ne5 Nd4 Qa8 d8R Qd1 Ne4 Re1 Nd6 Nf6 Ne8+ Kg8 g7 Ne4 f6 Ng6 Kd7 Rb3 Ra5 Ra3 Rh5 Ra5 Rf5 Re5 Rg5 Qe2 Rg2 Rc1 Rc8 Kf7 g8R Bg7 Rc5 Re6 Rcg5 Re5 Nc7 Qd1 Rd8 Rf8 Ne8 Kg8 f7+ Kh8 Nh3 Qe2 Rd1 h1R Ng1 Rh3 Re1 Rg8 f8Q Qd1 Qf6 Rf8 Qf5 Kg8 Ree2 Qe1 R2g4 Qh4 Reg2 Qh5 Rh4
3n2b1/1kpr2Nq/b3nqq1/1rRRN2p/1B1Nn1Q1/B3q1Q1/6N1/1K1B2N1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Ra4 Be7 Ra5 g4 Ra1 Bg5 hxg5 fxg3 b4 Kd7 d4 a5 Kd2 h5 Kc2 f5 e4 g2 b6 Kc6 b7 f4 d5+ Kb6 d6 f3 d7 c3 g6 g3 b5 f2 e5 a4 e6 a3 g7 a2 e7 Ra5 e8N Nf6 g8Q Rh7 Ng7 Nc6 b8N Ba6 Na3 Kb7 b6 Rf5 Qg4 Rb5 Be2 f1B Bd1 Qe7 d8B Bc4 Nd7 Ne4 Ne5 Qf6 Be7 Nd8 Rb1 a1Q Bb4 Ba2 Nac4 Qf5 Ngf3 g1N Bca3 g2 Ne3 Nh3 Rc1 g1Q Ng2 Nf4 Rh3 Qe3 Ng1 Nfe6 Rf3 Qeg5 Rd3 Qgg6 Rd5 Qff6 Qf7 Qe7 Qf2 Bc4 Qfg3 Qef6 Ne8 Rd7 Ng7 Qh7 Rd2 Qfg6 Rd5 Ka8 b7+ Ka7 b8N Kb7 Rb1 Ba2 Kc1 c2 Nbc6 Qc3 Rb2 Qf3 Rb1 Qff6 Nd4 Bc4 Kb2 c1Q+ Ka1 Qe3 Rc1 Ba2 Rcc5 N6g5 Rd6 Bg8 Kb1 Nge6 Rdd5
1B2R1nn/r1n5/QKbBb1Nr/NNr2Q2/8/kn3pB1/q4B1p/3B1r1R b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 h4 gxh4 b4 e5 c4 exf4 c5 b5 axb5 Bd6 Qc2 Bc7 Qd1 Bb6 cxb6 Ke7 Qd2 Kf8 Qd1 Ke8 Kf2 Ke7 e4 Kd6 g4 a5 g5 f5 b7 h5 b6 d3 b5 Kc5 g6 Kb4 g7 d5 e5 f3 Ke3 d2 Kd4 f2 e6 h3 e7 h4 e8Q h2 Qeh5 f4 Qhg4 h3 Qe6 a4 Qf6 a3 Bc4 f1R Qc2 d1N Nf3 a2 Bb3 Nb2 Nfd2 Ra7 Nc4 Be6 Nba3 Na6 b8B Nd3 b7 Rh6 b6 Nc7 Nb5 Ne5 Be3 Ng6 Bf2 Nh8 Re1 a1N Qcf5 f3 Bd1 Nb3+ Kd3 d4 Na5 Qd5 Re2 Na6 Bbg3 Nc7 b8B Qc4+ Ke4 d3+ Ke5 d2 Kd6 Qc2 b7 Qa2 Kc6 Rh5 Kb6 Rg5 Bc2 d1B Re1 Be2 Bd1 Bd3 Qa1 Be4 Qaf6 Bc6 Re3 Nh6 g8N Ka4 Ne7 Ng8 Ng6 Rh5 Rg1 h1R Re2 Rh2 Rh1 Rh6 Re5 Rg2 Re3 h2 Bd6 Rg5 Re2 Bc8 Re8 Be6 Qa1 Rg4 Bdg3 Rc4 Bd6 Rc5 Bdg3 Na6 Bbd6 Nc7 b8B Kb4 Qg7 Ka4 Qd7 Kb4 Qc8 Ka4 Qa6 Kb4 Nd4 Ka3 Nb5+
B7/1pK1N1b1/2p2QQN/2rRQ1BQ/1k3n2/4rr2/2q1q3/r1RnrqQB b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 d4 Ke7 Kd2 Kd6 Ke3 f5 Kf4 h5 e4 b3 a4 b2 g5 h4 a5 c6 a6 h3 a7 h2 e5+ Kd7 d6 Qe8 e6+ Kc8 Ke5 f4 d7+ Kc7 e7 Kb6 Kd6 f3 g6 f2 g7 Rh3 d5 Nh6 g8Q Bg7 Ra5 Na6 d8Q+ Nc7 Ne2 g1R Nd4 g2 Qb8 Rd3 Nf5 Ne6 Bg5 Re3 Nc3 b1Q Qh5 Ng4 Nh6 Qc2 Bd3 f1Q Be4 Nf4 Rc5 Ka6 Kc7 Rf3 d6 Nf2 d7 Nd1 d8Q Re3 Nd5 Rf3 Rc3 Kb5 Rd3 Re3 Qd6 Rf3 Qf6 Ka4 Ne3 Kb4 Nef5 Re3 Rd5 Rf3 Qh4 Qh5 e8Q Re3 Kd6 Qhe2 Qeg6 Rf3 Qc7 Re8 a8B Re7 Qhh5 Re5 Rd3 Rc5 Rd5 Qff2 Qgc8 Re3 Bh4 Nb2 Q7b8 Ra1 Bg5 g1R Ne7 Rgg3 Rc1 h1R Qcg4 Re1 Bh1 Rgf3 Qg1 Qff1 Kd7 Nd1 Qbe5 Rc4 Kc8 Rc5 Kc7
Q1Q1B3/1rRR2Nr/3r3N/1R2qr1r/5k1r/b2BR1nr/3p2p1/1Q1b2KR b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Nc6 Ke1 Nce7 Bg5 f4 Ra1 Nf5 gxf5 hxg5 Kf2 Ke7 b4 Kd6 e4 Ke5 c4 a5 h4 d5 c5 g4 f6 g5 b6 g3+ Ke1 g4 b7 d3 b8Q+ Qc7 h5 d4 f7 g2 Kf2 d2 b5 a4 b6 a3 c6 a2 h6 d3 b7 Ra4 h7 Nf6 Nc3 Ba3 f8R Nh5 Nce2 Ng3 Qb1 d1R Nh3 g1R Ng5 d2 Rh3 Rh1 Rf7 Rc1 Ne6 Rc3 Qa8 Re3 Rh6 Rh5 b8R Ba6 N2d4 Be2 Rb3 Bd1 Ng7 Rc3 Kg1 f2+ Kg2 Rd8 h8R Rd6 Bd3 f1R Rd7 Rfh1 R8h7 f3+ Kf2 Rb4 Ndf5 R1h4 Re6+ Kf4 e5 Rb7 Kg1 Qa5 c7 f2+ Kg2 f1R c8Q Rfh1 Rb5 R1h3 Nh6 Rc5 Re8 Qc3 e6 Rcf5 e7 Qc5 Qb2 Qe5 Rc1 a1R Kg1 Rb1 Rcc7 Rc1 Qb1 Rcc6 Ng8 Rdh6 Rh8 Rh7 Nh6 Rcf6 Reg8 Rd6 e8B Nh1 Rf8 g3 Rff7 g2 Rfe7 Ng3 Re6 Qc5+ Re3 Qe5 Rf8 Rff6 Kf2 Kg5+ Bf5 Rfe6 Bd3 Rg6 Rff3 Rgf6 Re1 Rf5 Rh1 Qc3 Kg1 Qe5 Re3 Kf4 Be2 Qf6 Bf1 Qe5 Bd3
2n2B2/k3B3/RR2qr2/1q1nN2B/1N2n1rb/B1Qrpr1Q/p3K1B1/1Rq5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c4 h5 b4 d5 g4 Kd7 f4 Kc7 b6+ Kb7 f5 a5 b5 e5 f6 d3 c5 d4 f7 d2+ Kf2 e3+ Kf3 e4+ Ke2 a4 g5 a3 g6 h3 g7 a2 Qe1 d1N Qd2 h4 Qc3 d3+ Ke1 e2 Qc2 h2 Qc3 h3 Ba3 Rh4 Bg2 Ne3 Nd2 Nd7 Nb1 Qe8 Nf3 Ne7 g8B N3d5 Ne5 Ra6 c6+ Ka8 b7+ Ka7 b8R d2+ Kf2 d1R c7 Rd3 Rb6 N7f6 Rf1 Bh6 f8B h1Q Bf7 h2 Bh5 Rg4 Rd1 Bb7 c8Q Bg5 Qd7 e1R Rc1 Red1 Ke2 Nc8 Bae7 e3 Na3 Bh4 Nc2 Ne4 Rab1 Qg6 Nb4 Rf1 Rd1 Rf3 Qe6 Rgf4 Qh3 Qe6 Rd2 Qg1 Rdb2 h1Q Rb3 Ncd6 Ra3 Qc1 Ra4 Rg4 Rc6 Bc8 b6+ Kb8 b7 Ka7 Rb6 Qb2+ Nc2 Qb5 Nb4 Qc1 b8B+ Ka8 Bc7 Ka7 Bcd8 Bb7 Bc7 Nc8 Bcd6 Qa5 Rb5 Rc6 Rb6 Ba6 Nc2 Qb5 Ba3 Qf7 Nb4 Rcf6 Bc5 Qg8 Bce7 Qe6 Raxa6+
2b1r3/2B3r1/1B2Q1k1/1p1RR1Bb/pq1qbq2/1QNr1B2/K7/N1Q1B1nr b - - 0 1 legal: proof: e4 f5 g4 fxe4 d4 c5 a4 cxd4 a5 h5 Kd2 hxg4 Ke2 Qb6 Ke1 Qd8 b4 e6 Bg5 Bc5 Bc1 b5 Ke2 Bb6 Ke1 Nc6 axb6 a5 Nf3 a4 Ng1 Na5 bxa5 Ra7 Ke2 Ra6 Ke1 Ra8 Kd2 Kf7 f4 d5 h4 g5 c4 e3+ Kc2 e5 Kb2 e2 f5 e1Q h5 g3 f6 g4 c5 d3 a6 g2 b7 g3 b8B d2 a7 e4 c6 d4 c7 e3 h6 d3 h7 e2 Ka2 Qf2 Na3 e1Q Be2 Nh6 Nc2 Qfd4 Rh5 Nf5 Bf3 Nh4 Ne2 g1R Nc3 g2 Rd5 Kg6 f7 Q8f6 f8B Qff4 Bc5 Rd8 h8B Rh1 Bb6 g1R Qe2 d1B Qe6+ Qff6 Rb1 d2 Na1 Bc2 Rb3 d1B Bg5 Rg3 Rb4 Qf4 Re4 Be2 Ree5 Be4 Bg7 Rg8 Bf8 Rg7 Bb4 Bd1 Be2 Rd3 Bf3 Nf5 B4a5 Nd4 Bb4 Ne2 B4a5 Bb7 c8Q Ng1 B8c7 Be2 Qcg8 Re8 a8Q Bc8 Qac6 Qb1+ Ka3 Qb4+ Ka2 Bf1 Qc5 Bh3 Qe3 Bg4 Qc1 Bh5 Nd1 Qd4 Be1 Qc5 Nc3 Qb4 Qc6 Qfd6 Qc4 Qdc5 Qb3 Qcd4 Qe6+
b2K2BB/n4r1p/n1N2Q1N/2NRr1rp/N3q2Q/BN4qq/1qkR4/n7 b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 f4 e5 Kd2 exf4 Ke1 g6 h4 a5 h5 gxh5 b3 a4 b4 Bc5 Ra3 Bb6 Ra1 Ba5 bxa5 Qe7 Be3 Qg5 Bc1 Qd8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 f3 Kd6 Ke4 g4 f5 c4 f2 g5 d3 b6 f4 g6 d2 b7 f3 g7 a3 a6 a2 a7 Nf6 g8N Qb6+ Ke7 d5 c5 d4 c6 d3 c7 Ke3 Ba3 Qb2 Nh3 Ne8 Kd8 Qc1 Nf4 Qc4 Ne6 Qc1 Nh6 Qc2 Rh2 Na6 b8B Rg8 Nc5 Bb7 c8N Qb2 Be5 Rg5 Qe1 d1Q Bh8 Nd6 Nd2 Qdb3 Rd1 a1N Bh3 f1Q Be6 f2 Bg8 Rb8 a8N Qh3 Nb6 f1R Nba4 Ba8 Qh4 Rb5 Na7 Nc8 Nc6 Na7 Rg2 Qc4 Ndb3 Rf7 Rd2 Re5 Rg5 Qe4 Rf5 Re6 Rd5 Re5 Rc2 d2 Qf6 d1Q Rcd2 Qdc2 Qh4 Qf4 Qf6 Kf2 e4+ Ke3 Qh4 Rg5 e5 Qce4 e6 Qfg3 e7 Ra5 e8Q Re5 R2d3+ Ke2 Qe6 Ke1 Nd2 Kd1 Ndb3+ Kc2 Rd2+ Kb1 Rd7 Rd5 Nd3 Rg5 Qf6 Raf5 Ndc5 Re5 R2d3 Kc2 R7d5 Qeg4 R3d4 Qe4 Rd2+
k1nQR1n1/3R2q1/5q2/QB3nBr/npr5/3QnR2/2p1QKbQ/N4n1N b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 d4 Kd7 e4 b5 a4 h5 a5 c5 a6 Kc7 e5 f5 a7 Kb7 g6 g2 e6 g3 e7 h4 e8R h3 d6 h2 d5 b3 g7 b4 d7 b2 d6 f4 Nd2 b1N Ra6 f3 Ra5 f2+ Ke2 c4 Rf5 c3 Ra5 c2 Nb3 Na3 Rc5 Qf6 d8Q Nc4 d7 Nc6 Qd3 Nce7 Qd6 Ne3 Rd5 Rh5 Nh3 g1Q Na1 g2 Qa5 Rb8 d8Q Ka8 Q6c7 Bb7 Rd7 Nc8 Qd6 Be4 Qd3 Rb7 Qe7 Rc7 Qe6 Ne7 g8Q Rc4 Qg3 Ng8 Qf4 Bb7 Qee4 Bc6 Kf3 Bd5 Be2 f1N Nf2 Nf5 Qe5 Bc6 Bg5 N1e3 Nb3 Qa1 Rf1 h1N Qh2 Nhg3 Nh1 g1N+ Kf2 Qab2 Qee5 Bg2 Na1 Qg7 Ke1 Qd4 Rf3 Ngf1 Kf2 Qb2 Qe6 Qbf6 Qd8 N1g3 Bf1 N1e2 Qee7 Nc3 Qe6 Ned5 Qee2 Na4 Qb3 Rc3 Qd2 Nde3 Bb5 Ngf1 Qe2 Rc7 Qa3 Kb7 a8Q+ Kb6 Qa5+ Kb7 Ba6+ Ka8 Qad3 Rc4 Bb5+
BQr5/2nr1r2/2NRBr1R/2Qn2r1/5kn1/1R3bpB/3K1p1b/BBNn4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 g4 Bf1 Qg5 hxg5 fxg3 c4 Ke7 b4 Ke6 e4 Ke5 g6 a5 b6 d5 c5 f5 g7 h5 c6 g2 b5 a4 c7 d3 b7 d2+ Ke2 a3 b6 h4 Qe1 d1N Kd2 d4 Qg3+ f4 Qc3 h3 Bb2 f3 Qc2 a2 Ne2 g1R Qc4 h2 Nbc3 d3 Bg2 Ra6 Nc1 Bd6 Qc5+ Kf4 e5 Ne7 g8B Nd5 e6 f2 e7 N1e3 Rb1 a1R e8B R1a4 Bh5 Rd4 Bg6 Rh7 Bh3 Rf7 Ba1 Bd7 c8B Bc6 Rb3 Rg2 Re1 h1R N3a2 Rgg1 Bg2 Rh8 Rd1 Bc7 Be6 Bd6 B8h7 Rc8 Nb4 Be5 B6e4 Bc7 Nca2 Bd6 Bh3 Rg3 Kc1 d2+ Kb2 Ne7 B6d5 Kg5 Kc3 Rg2 Nc1 Bh2 Bhf5 Kf4 Bb1 Rg1 Bh1 Rd5 Bd7 g3 Bf3 Rg5 Bdf5 Ng4 B3e4 Nd7 b8R Nf8 b7 Ne6 Ra8 Re1 b8Q+ Nc7 Bf3 Rb6 Ra6 Re3+ Kc2 Rd3 Bfg2 Rd7 Kc3 Bb5 Ba8 Be2 Kc2 Rbg6 Re6 Bf3 Nc6 Rgg8 Rh6 R8g6 Be6 Rgf6 Rh1 Ng8 Re1 Ne7 Ree3 d1N Red3 Re5 Kd2 Rg5 Rd6 Ned5 Qc3 Rde7 Qa5 Rd7 Qc5
1R2Q2Q/bn2bN2/3bpQBB/pbqr2Nb/8/3N4/b2k3q/bNN2KR1 b - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 d4 fxe4 a4 bxa4 h4 c5 f5 cxd4 g5 Ra6 Bf4 Rf6 Bc1 Nc6 Ra2 Ne5 Ra1 Nf7 gxf6 g5 Qe2 g4 Qd1 Ng5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 b4 Kf7 c4 d5 c5 h5 c6 e3 b5 h4 b6 h3 c7 g3 b7 a3 b8N e2 Ra2 e6 Nc3 h2 Nd7 g2 Rc2 a2 Ne4 a1B Nd2 d3 Rc4 d4 Nb1 d2+ Kf2 e1B+ Ke2 Ne7 Rc5 Nc6 Rb5 Bh4 Nc5 Ba6 c8N Qc7 Nd3 Rh5 Rb8 Bd6 Qa4 Nd8 Qc6 Nb7 g6+ Kg8 f7+ Kg7 f8N Kf6 g7 Kg5 f6 Bb5 Qe8 Qc5 g8Q+ Kf5 f7 Ke4 Ne7 Rd5 Nc6 Bhe7 Ne5 d1B+ Kf2 Bg4 Qh8 Bh5 Ne2 g1B+ Kg2 Bf2 Rg1 Be3 Nh7 h1Q+ Kg3 Qh4+ Kg2 Bf2 f8Q Qf4 Nb4 d3 Qff6 d2 Ng5+ Ke3 Nef7 Qh4 Nd3 Qf4 Bb2 d1B Nec1 Bb3 Be2 Qg3+ Kf1 Qh2 Bg4 Ba2 Bf5 Bh4 Bg6 Bf2 Na3 Kd2 Be5 Qc7 Bb2 Ba7 Nb1+ Kd1 Bc3 Qc5 Bd2 Kc2 Nf3 Kd1 Bh6 Kc2 N3g5 Kd1 Na3 Kd2 Nb1+
2RNr3/r2BR1R1/4n1nB/3k1Kpq/nN1r1BQ1/Q2Br3/1q1B2pr/1q6 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 d5 g6 d3 Bh3 d2+ Ke2 hxg6 Bg2 g5 Bf1 g4 Bh3 e5 Kf1 d4 Kg2 d3 f3 e4 Kf1 Bc5 Kg2 Bd4 exd4 e3 Na3 Bf5 Nb1 Be4 fxe4 Qa5 Kg3 Na6 Bf1 Qd8 Kg2 Nb8 Kg3 Kd7 Kf4 Kd6 a4 g5+ Kf5 b5 c4 e2 h4 e1R a5 f6 c5+ Kc6 e5 b3 d5+ Kd7 d6 Kc6 d7 b2 h5 g3 h6 g2 e6 b4 h7 b3 a6 Re4 a7 Na6 e7 Nc7 e8B Qb8 d8B+ Kd5 c6 Re3 Na3 b1N Nf3 b2 Bd7 Nc3 Nd4 b1Q Nac2 Ne6 c7 Q8b2 c8R Na4 Qg4 d1R Bc7 d2 Nc6 Rde1 Bd6 d1R Bf4 Rd4 Bd2 Qd1 Bd3 Qdb1 Kg6 f5 Nd8 Ne7+ Kf6 Re8 h8B Ng6 Rh7 Rh1 Bg7 Rh2 Bh6 Qh1 Rg7 Qhb1 Bd6 f4 Kf5 f3 Bf4 f2 Ra2 f1Q Ra3 Rb8 a8Q+ Rb7 Rac3 Qfd1 R3c7 Nac5 Qa3 Ra7 B7b5 Qe2 Rce7 Na4 Bd7 Qf3 Bc3 Qh3 Bd2 Qh5 Nb4+
3QbB2/1Qp1q2n/1N1Rn1nq/n1N1R1N1/1q1b4/1p1K1B2/5N2/qk1R1N1b b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 h3 h5 Nc3 b5 Nb1 g5 Qc2 f4 Qa4 Rh7 Qd1 Rf7 h4 Rf5 gxf5 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Kd7 Na3 Ke7 Nb1 Ke8 d4 Kd7 Kd2 Kd6 e4 c3+ Kc2 h4 a4 b3+ Kd3 b2 f6 h3 d5 Kc5 e5 Kb4 e6 c2 f7 Kb3 a5 h2 a6 b4 d6 g3 g6 g2 a7 f2 a8N f3 e7 Bg7 e8R Nc6 f8N Bd4 d7 Qe7 d8N Na5 g7 Bd7 Nf7 Nf6 g8Q Nh7 Rd8 Be8 Nh3 g1N Bg2 f1N Nd7 f2 Ra2 Ne3 Bf3 Nec4 Nab6 Ne2 Bh6 f1Q Nfg5 Qg1 Qe1 c1Q Bf8 Qf1 Rg1 h1B Nf2 Qh3 Qd2 Qh6 Qd5 Qd1 Qb7 Ne5+ Ke4 Qc1 Re1 Nf4 Re2 Ne6 Re1 Ng6 Kd3 Nc4 Re5 Qe1 Ra6 Na5 Nc5+ Ka2 Qd1 b3 Nd2 Qd6 Nf1 Qe7 Qd2 Kb1 Rd6 Nc6 Ra2 Na5 Qf4 Qb4 Qf6 Qeg7 Qd8 Qe7 Nd5 Kc1 Nb6 b1Q+ Ke2 Qa1 Kd3 Kb1 Rb2+ Kc1 Rd2 Kb1 Rd1+
4B2r/1b1KNQb1/bkBb2br/3b3R/b1NNqp2/5p2/1B1Q2b1/1RB2B2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Be3 g5 Bf4 Ne7 Bc1 f4 h3 Nf5 gxf5 Nc6 h4 g4 Bd2 Ne5 Be3 Nf7 Bc1 Ng5 hxg5 Kf7 Bg2 Ke7 Bf1 Ke8 Kd2 h5 Kd3 b5 Ke4 d5+ Ke5 Kd7 a4 Kc7 c4 h4 e4 h3 a5 h2 f6 g3 c5 g2 g6 b3 c6 d3 g7 b2 g8Q b4 a6 b3 f7 d2 a7 d4 Ne2 g1B Qc2 d1B Nbc3 b1B Na4 b2 Qd2 d3 Nd4 Rh6 Qh7 Ba2 Rb1 Be2 Nb6 Bb7 Nc4 Bg7+ Kf5 Qe8 f8B Qe7 e5 Qb4 Bc5 Rh8 a8B Qa4 e6 Qc2 Nb6 Bd5 e7 Bf2 e8B Be3 Ra1 b1B B5a3 Qa4 Nc4 Bg1 Nd6 Kb6 c7 Bc2 Bab2 Qc4 Ne6 Bc5 Nd4 Ba4 Rb1 Qc2 Rg1 h1B Rg5 Bg2 Rh5 Ba3 Qg8 Bb4 Qf7 Qc4 Qc3 d2 Qe3 d1B c8N+ Ka5 Ne7 Kb6 Qd2 Bdc2+ Kg5 Bg6 Kg4 Ba6 Bac6 Bb7 Kg5 Qc2 Kg4 Bea6 Kg5 Bf8 Kf6 Bc3 Nb5 Qd3 Na3 Qc2 Ke5 Qe4+ Kd6 Bg7 Kd7 Bb4 Ne6 Bc5 Nd4 Bd6 Nc4+
K2b1Q1B/3pb1Q1/B7/r1pp1r2/q3n1BQ/2rNqn2/kQ2N1R1/bR1Q4 b - - 0 1 legal: proof: e4 b5 h4 g5 d4 gxh4 b4 Nf6 a4 Ng8 axb5 Na6 c4 Rb8 c5 Nh6 c6 Bg7 d5 Ng8 e5 Bf8 e6 fxe6 b6 exd5 b5 Bb7 cxb7 Ra8 Be2 Nb8 Bc4 Na6 Bf1 Nb8 Kd2 a5 Kd3 h5 Kd4 e5+ Kd3 Ke7 g4 Kd6 f4 Kc5 g5 Kb4 f5 a4 f6 a3 g6 e4+ Kd4 h3 g7 e3 f7 a2 Nf3 h2 Nc3 h4 Rg1 h1R Ne5 e2 Rg2 e1B Bb2 h3 Rb1 a1B Ne2 Be7 f8Q Nf6 g8B h2 Be6 Rh5 Qg7 Ra5 Bg4 Ne4 Bc3+ Ka3 Nd3 Ka2 Bb2 Na6 b8Q Ng5 b7 Qe8 b6 Bh4 Qd8 Nc5 b8Q Nce4 b7 c5+ Ke5 Rg1 Qbc8 h1Q b8Q Qh3 Qb4 Qf7 Qdb6 Qe3 Qcf8 Qe8 Qbf6 Qa8 Bc3 Nd2+ Qe4 Bd8 Kd6 Ndf3 Bd4 Be7+ Kc7 Qa6 Qef4 Ne4 Kb8 Rf5 Qg3 Bg5 Qh4 Rh1 Bb2 Rh3 Qc3 Bd8 Qcc2 Qc4 Qcc3 Bge7 Qcd2 Rb5+ Ka8 Qa4+ Qa5 Rg5 Nf2 Ng3 Qe5 Qf4 Ng1 Nd2 Bd3 Nge4 Ne2 Rf5 Qd4 Rb4 Ba6 Rb5 Qb6 Ra5 Qdh8 Rb3 Nd3 Qe3 Qh8h6 Nf3 Bh8 Ra3 Qhg7 Rc3 Qb2+
kR1nN1r1/2p1qN1b/1R5K/4N2Q/1q1pBB1q/1R1n1R2/b2n1RQp/r7 b - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 b4 exf4 h4 gxh4 c4 Qf6 Kf2 Bc5+ d4 Bb6 c5 Qd6 d5 Qxd5 cxb6 Qd2 Kf3 Kd8 Kg4 d5+ Kg5 f5 e4 a5 g4 h5 e5 a4 e6 a3 b7 f3+ Kg6 d4 b6 h3 b5 h4 g5 h2 Be2 f2 Bd3 f1B Be4 f4 Ra2 h3 Nc3 Na6 b8R f3 b7 f2 b6 Nc5 Nb5 Qb4 Nd6 Nh6 Nf3 Nd3 Ne5 Nf7 Bf4 Rg8+ Kh7 Be2 g6 f1N g7 Nd2 Rf1 h1Q Rf3 h2 Rb2 a2 Kg6 a1Q Ra2 Rf8 g8Q Qe1 Kh7 Qf2 Qg2 Rg8 Rc2 Qaa3 Rb2 Ng5+ Kh6 Bf1 Rb3 Qg3 Rf2 Qh4+ Qh5 Be2 Rc3 Bd1 Rb3 Bc2 Rf3 Ra7 Ra8 Bb1 b8R Ba2 Rb7 Ra5 Ra6 Bd7 Ndf7+ Kc8 e7 Bf5 e8N Bh7 Rf2 Ne6 Rf3 Ra4 Ra5 Nd8 Rc5 Ra7 Rc2 Nb1 Re2 Nd2 Ref2 Ra4 Ra7 Kb8 b7 Qbe7 Ra6 Qab4 Rb6 Ka7 b8R Ra5 R8b7+ Ka8 Rg3 Bb1 Rh3 Ra1 Rhf3 Ba2 Rb8+
2qQ4/r1Q1Rr1n/1K2p3/2p3bb/3Nk2p/n4NRB/2QnrB2/1Rn2Q1Q b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 h3 f4 h2 b6 e3 b7 e2 g5 e1N g6 b3 f5 h4 g7 c6 f6 b2 f7 e6 Qc2 Ng2 Ra7 Rh6 Nc3 b1N Nf3 Nf4 Bh3 Nf6 g8R Na6 b8Q+ Nc7 Rg3 Ba6 Ne2 Nh7 Qb7 Be7 f8Q Qc8 d3 Rg6 Be3 Rg7 Bf2 Nd2 Rb1 h1R Qf6 Re1 Qf5 Kd7 d6 Rf7 Kc5 Bg5 d4 Nd3+ Kb6 c5 d5 Nc1 Ned4 Be2 Qfd3 Bd1 Qf1 Re2 Qc6+ Kd8 d7 Ke7 d6+ Kf6 Qb7 Nb5 Qd5 Na3 d8Q+ Re7 Rd7 Ra7 Qc7 Rf7 Qdc6 Ra8 Re7 Ra7 Ne1 Ke5 Qch1 Nd3 Nef3+ Ke4 Qc4 Nc1 d7 Ba4 d8Q Be8 Qd1 Rf5 Qdg1 Bh5 Qf1 Rf7 Qc2+
1R1k4/1Bb1pR2/1r1r2p1/B3q1n1/2K2NnQ/R1B4n/1pqb1NQn/2RR4 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 cxd5 b5 e4 f5 Bd3 fxe4 Bf1 Bd7 Ra2 axb4 Ra1 b3 Qc2 b4 Qd1 Bb5 axb5 Rh3 Nc3 Rh6 Nb1 Rh8 Ke2 c5 f4 b2 d4 c4 h4 g3 h5 g6 f5 b3 h6 e3 b6 c3 Kd3 c2 d6 e2 d7+ Kf7 d5 e1B b7 g2 d6 Bh4 h7 Bh6 f6 Qa5 d8B Ke8 Nd2 b1N Ne2 g1N Ne4 b2 Qd2 Na6 b8R Nh3 Nf2 Qe5 Ra3 Nc5+ Kc4 Ne4 Nf4 Neg5 f7+ Kd7 f8R Bg3 Rf5 Nf6 Ba5 Rd8 h8Q Ng4 Rf7 Ra6 Qd5 Rb6 Bcd2 c1Q+ Bdc3 Qd2 Qg2 Qc2 Bd3 Bh2 Qh7 Bg3 Bf5+ Ke8 Bc8 Rd7 Qd5 Kd8 Rc1 Nd2+ Kc5 Qe6 Qg2 Nf1 Kd4 Qe5+ Kc4 Ra7 d7 Nfh2 Qg7 Ra6 Qf6 Ne4 Qh4 Bg5 Nh5 Bd2 Nf4 Neg5 Bb4 Kc7 d8R Rd6 Ba5+ Rab6 Qa8 Re6 Rd3 Rd6 Qg2 Kd8 Rd4 Be3 Rdd1 Bd2 Rg7 Rd7 Rh7 Rd6 Rf7 Rd7 Qa8 Qg7 Nd5 Bc7 Nf4 Rdd6 Qg2 Qe5 Bb7+
3q2BR/q1n2p2/b1N1R1R1/QBrq2R1/n2p1k2/n2p3N/R2K4/B3rQ1r b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 b4 Ke7 e4 Ke6 c4 Ke5 b6 a5 b5 h5 c5 d5 b7 a4 c6 g2 c7 h4 g6 g3 b6 h3 g7 a3 Nd2 h2 Ngf3+ Kf4 e5 g1N e6 a2 e7 g2 e8R Qd7 Re6 Qd8 Ne5 Nd7 b8Q Ngf6 g8B Ra5 b7 Ne8 Nc6 Rc5 Bb5 d3 Bb2 d4 Qa7 Ne2 b8R Nc3 Rg1 h1Q Rb6 Ne5 Ne4 Ba6 c8R Nc7 Kd2 Na4 Nf2 Rh3 Qf1 Nc4+ Kc1 Na3+ Kd2 Re3 Rg6 Re1 Rg5 Bb7 Qa5 Ba6 Bc3 Qd6 Re8 Qd8 Re6 Qh5 Rh1 g1R Rh3 Qf3 Rh8 Qfd5 Reg6 Rh1 Bb2 Bb7 Ra6 Re3 Re1 a1Q Ra8 Re7 Ree6 Ba6 Ra7 Q5d7 Bc3 Qa2+ Bb2 Qad5 Ba1 Re8 Rd6 Re5 Rde6 Re1 Rb7 Nc3 Ba4 Na8 Rb2 Qa7 Ra2 Nc7 Bb5 Na4 Nh3#
3N4/1r3BR1/rp1qNB1Q/Rn3K2/n1pq4/1Npr1NRr/2k1Q3/2b3Nr b - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 h4 f5 c4 dxc4 f4 g5 fxg5 f4 h5 Bf5 h6 Bxh6 exf5 Bf8 Be2 Kf7 Kf2 c5 Kf3 e5 Ke4 h5 d4 f3 g6+ Kf6 g7 c3 Be3 f2 a4 f1R d5 c4 a5 h4 d6 b3 a6 h3 d7 h2 a7 b2 Bd4 Ne7 g8R Nec6 Ra5 Rf3 Nd2 b1R Qe1 Rb5 Nb3 Bh6 Bd1 Qc7 d8N Na6 Bc2 Qd6 g5+ Ke7 g6 Kf6 g7 Bc1 Qf1 Kg5 Bd1 Rd3 f6 Rh7 f7 b6 Bf2 Nd4 f8N Rc5 Qe1 Nb5 Bd4 Rc7 Nd7 Rb7 Bh5 Rh8 Bf7 Rh5 Ne2 Rhh3 Rf1 h1R Ng1 Kg4 Rf2 Kg3 Kf5 e4 Bf6 e3 Ne5 Nc5 Rf3+ Kg2 Qd1 Na4 Rg3+ Kf2 Qf3+ Ke1 Qe4 Kd1 Nef3 Rab8 a8N Kc2 Nc7 Ra8 Nce6 Ra6 Qe5 e2 Qe4 e1Q Qe2+ Rd2 Rh8 Ra8 g8Q Ra6 Rh7 Qf2 Qh8 Qe3 Rhg7 Qed4 Qe1 Rd1 Qh6 Rd3 Qe2+
2Nn3r/1pQ3QR/Bq2Q1R1/q3pK2/4Q3/3p2q1/r1BN1nB1/b1q1kqQ1 b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 f6 exf6 axb4 g4 d6 f5 Be6 Bf4 gxf4 h3 Bf7 g5 Bh5 Rh2 Nh6 Rh1 Bg4 hxg4 Ng8 Kf2 Kf7 Kf3 e5 Ke4 h5 c4 b3 a4 d3 a5 f3 a6 b2 g6+ Ke8 c5 Kd7 f7 Kc6 a7 Kb5 f6 Kc4 c6 f2 g5 h4 c7 d5+ Kf5 d4 c8B h3 g7 h2 g6 Rh7 Nf3 Qd5 Ra6 Rh3 Bg2 f1Q Na3+ Kc3 Nc4 b1Q Nd6 Be7 f8Q Nc6 f7 Qa5 Qd8 Qbb6 f8Q d2 Qc7 Nf6 g8B Ne4 g7 Rh8 Bc4 Nd8 g8Q Nf2 Qfg7 d3 Bd7 Bg5 Nc8 Be3 Qe6 Bd4 Ba4 Qe1 Qb1 d1Q Nd2 Qc1 Bab3 Qe3 Bc2 Qf1 Qe1 Qg3 Qe4 Qc1 Rg1 h1Q Re1 Qhh2 Rh1 Qhg1 Rh7 Qgf1 Qef7 Qbc5 Rg6 Qcb6 Qfg8 Kb4 Qe6 Ba1 Qe2 Kc3 Ba6+ Kd4 Qg4+ Ke3 Qgc4 Ke2 Qh4 Rb8 a8Q Ke1 Qa7 Ra8 Qh1 Qc6 Qd4 Qcb6 Qg1 Qac5 Bb5 Ra2 Ba6 Qca5 Qe4+
7r/pKb2q2/2B4n/Q1B3Bb/RB1q2bp/1N1B3R/N4pkq/NQn2q2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 Na6 Bf1 Rb8 Ra2 Rb6 Ra1 Rg6 Be3 g4 Bc1 Rg5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 h5 b4 d3 c4 h4 g6 d2 b6 g2 g7 g3 b5 f6 c5+ Ke6 b7 d6 b8B Rh5 c6 Qe8 b6 Rc5 b7 Ne7 g8Q+ Qf7 c7 Ra5 Nc3 Nf5 Ra4 Nb4 Na2 Nd3 Qg5 Nh6 Nf3 g1Q Rh3 g2 Ne1 Qh2 Nc2 g1Q Na1 Rf5 Qc2 d1Q Qb1 Qgf2 Bd2 Nc1 Bb4 Qfe1 Qd2 Rh5 e3 Bg7 Bd3 d5+ Kd4 f5+ Kc5 Ke5 Kc6 d4 e4 f4 Qc3 Bg4 c8N+ Kf6 e5+ Kg5 e6 f3 e7 f2 e8B Qf1 Ne7 Be5 Nf5 Kf4 B8d6 Qd2 Bdc5 Bc7 b8B Qb2 Bc2 d3 Nd4 d2 Ndb3 d1B Kb7 Bde2 Qe1 Qd4 Bc6 Bd1 Re3 Bdf3 Bd3 Kg3 Qc3 Kg2 Qe1 Be4 Rf3 Bg6 Rh3+ Rd5 Qd2 B6h5 Qc3 Qf3 Qd2 Rd8 Qc3 Rh8 Qe1 Ba5 Bf4 Bc7 Bg5 Qfd5 Ba3 Qf3 Qb4 Qfd5 Qa5 Qf3 Bab4 Qfd5 Rf3 Qf7 Rh3+
Nr1n1RB1/1n1QB2p/2R3R1/3n1Q2/NpbK1b1r/kR1n3p/B3R3/r5n1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 a4 b5 h4 g5 Bb2 gxh4 Rh2 b3 Bc1 b4 Rh3 Qd7 Rh1 Qb5 axb5 Ra4 Qc2 Ra6 Qd1 Ra8 Kf2 Kd7 g4 Kd6 d4 f5 e4 c5 b6 f3 Ke3 c4 b7 b2 g5 f2 g6 c3 e5+ Ke7 e6 Kd6 e7 h3 e8R c2 g7 Ra5 Bc4 f1R Ba2 Rf4 Qf1 Be6 Nd2 b1N Ne2 Rh4 Nc3 Ne7 g8B Nd7 b8R Nc6 Rg1 Nd8 Rg6 Nc5 Na4 Nc3 Rc8 Ncb7 Rb1 Ne2 Rb3 Ng1 Nc4+ Kd7 d6 f4+ Kd3 f3 d5 f2 Rc6 Bh6 Bg5 c1N+ Ke3 Ra6 Qd3 Ra7 Qf5 Nd3 Rf8 Rf4 Be7 Rh4+ Qf4 f1N+ Kd4 Ra5 Qe4 Bf4 Qf5 Nd2 Re8 Ne4 Rf8 Nec5 Re8 Na6 Rf8 Nc7 Re8 Kc8 d7+ Kb8 d6 Ka7 Ncb6 Ka6 Rf8 Nd5 Na8+ Kb5 Re8 Nf7 d8R Ra6 Rdc8 Nfd8 d7 Bf7 Nb2 Ra3 Na4 Be6 Bb1 Ra1 Ba2 Nf7 d8Q Rd1 Bf6 Ra1 Nc5 Nb6 Qd7 Bc4 Re2 Nd5 Be7 Ka5 Na6 Ka4 Rd8 Nh6 Bf7 Re8 Bg8 Nf7 Rbb2 Rf8 Nc5+ Ka3 Na4 Re8 Rdc8 Rd8 Rcf6 Rf8 Rcc6 Rb8 Rb1 Nfd8 Rf8 Nc3 Rbb2 Nd5 Rb3+
NN1nn1k1/6nr/5br1/3b1Q1r/K1n3p1/2RBQ1Np/p2RQb2/B1N3N1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 g4 Bf1 Qg5 hxg5 fxg3 Kd2 a5 b4 d5 c4 h5 Kc2 f5 Kb3 Kf7 e4 d3 b6 d4 b5 d2 e5 g2 c5 h4 c6 h3 b7 f4 b6 d3 c7 f3 Qe2 d1N Nc3 f2 Ra2 d2 Ka4 Rh5 Bb2 Nc6 b8N Bb7 c8Q Be7 Ba1 Nd8 Nd7 Nf6 g6+ Kg8 g7 Ne3 e6 d1N Rd2 Ne8 Na2 Nc4 Nc1 Bd5 b7 Nde3 b8N Nf5 Nb6 Ra7 Na8 Bf6 e7 Rb7 Qe3 Ra7 Be2 f1R Bd3 Rf4 Rh2 Re4 Rc2 Re6 Rc3 Rc6 Nf3 g1B Rd2 Bf2 Ng1 B6h4 Qd7 Rg6 Qe2 Bf6 Qc8 Kh7 g8N Nfg7 Nh6 Rd7 Nf5 Kg8 Ng3 Ra7 Kb5 a4 Qf5 a3 Qe3 Rb7+ Ka4 a2 Qd4 Nge6 Qde4 Ned6 Qe2 Rc7 Nd7 Rb7 Nf8 Rc7 e8Q Rch7 Qe7 Ng7 Nd7 Nde8 Nb8 Bb7 Q7e4 Bd5 Q4e3
N2KQ3/2R1p2b/n5rB/nQ1B4/QrrkRQ2/Q2n2pq/1N1N2p1/2r1n3 b - - 0 1 illegal: No possible last move, all moves rejected
1NQ3K1/1qNN2pR/6b1/BBq1qp1r/Qr1k3p/Qn2q3/3qq3/1RQ3Q1 b - - 0 1 illegal: No proof kernel
NQB1k2N/QnqnRRp1/2R3qp/7b/3B1Q1Q/r4Qn1/5p2/n1nK2n1 b - - 0 1 illegal: No possible last move, all moves rejected
K2nkn1B/2B2Q2/1NR5/N1pqnB1B/1bb4R/1p1nNB2/2q2Qp1/4n2n b - - 0 1 illegal: No possible last move, all moves rejected
1R1N2b1/2bb1r2/2rB2QK/2pQ1B2/pr3RNR/2p1k2N/3qbR1R/3r2q1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 c5 exf4 c6 f3 Ra2 dxc6 Ra3 c5 Ra1 c4 Qc2 g5 Qb3 f4 Qd1 Ne7 h3 Nf5 gxf5 Nd7 h4 g4 Ra2 Nf6 Ra3 Ne4 Ra1 Ng5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 Kf2 Kf7 b4 h5 d4 c5 e4 a5 d5 a3 e5 a4 d6 h4 f6 Kg6 b5 Kf5 g6 Ke4 e6 a2 d7 h3 g7 c3 g8R h2 f7 Ra5 e7 Qc7 e8Q+ Be7 f8R Rh4 d8N Bd7 b6 Qd6 b7 Ra6 b8R Rc6 Na3 Qd2+ Be2 Kd4 Rh8 Bd6 Nc4 Bc7 Ne5 Ke4 Rab1 a1R Nh3 Kd4 Rf1 h1B Qg6 Bg2 R1b2 g3+ Kg1 Ke3 Rf2 Bh1 Bd3 g2 Kh2 Rb1 Be4 Rh7 Bf5 Rf7 Rc2 Rb4 Rh4 g1R Rb2 Bg2 Qb3 Rd1 Qd5 Bf1 Ng1 Ba6 Kh3 Bc4 Kg4 Ba2 Rfh2 f2 Kh5 f1Q Nh3 f3 Kh6 f2 Rc2 Qh1 Rb2 f1B Rf2 Bb5 Rff4 Ke2 Ng4 Qg1 Rh8 Qc2 Be3 Qd2 Bd4 Bb3 Be5 B3c4 Bd6 Ba6 Nf6 Ke3 Rc2 Bab5 Rf8 Ba6 Ng4+ Ke2 Re8+ Re7 Rb2 Qc2 Qd4 Bg8 Qc4+ Kd2 Ra2 Rf7 Qd5+ Bd3 Re3 Qb2 Ref3 Ke2 Rf1 Qc2 Ne5 Ke3 Rb2 Qc1 Rh2 Qd2 R1f2 Be2 Ng4+
kNr3qB/3n1NN1/b2r1Qpp/8/3R3K/R2npp2/B1b3Nn/1QrN3R b - - 0 1 illegal: No proof kernel
n1KR3r/2Q2ppN/1rR2b2/4RN2/1q1BB2p/bk1b1RR1/2rp4/1N1Qn3 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h5 Ra2 h4 Ra1 Qg5 Na3 Nh6 Nb1 Qh5 gxh5 Ng8 Na3 Nf6 Nb1 Ng4 Bg2 Nxh2 Bh3 Rg8 Bf1 Rh8 Kf2 Ke7 b4 Kd6 e4 a5 c4 d3 b6 a4 b7 d2 h6 a3 b5 Kc5 h7 Kb4 e5 d5 e6 f3 Ke3 d4+ Ke4 d3 Kd5 a2 c5 f2 b6 Ra7 e7 Be6+ Kd6 Bd7 Kc7 Be8 c6 Ra5 Bb2 Ra3 Ne2 Nd7 b8R Kc4 b7 Ra4 Bd4 Ng4 Bg2 f1R Ng3 Ra6 Nf5 Nh2 Rg1 Nf3 Kc8 Rb6 c7 Ne1 Be4 Rf2 Rg3 Kb4 Ra8 Kc4 b8Q Kb4 Qe2 d1Q Ra5 Qb3 Qd1 Rc2 Re5 d2 Qa7 Qc3 Qb7 Kb3 Qc6 Nf6 Qd6 Ba4 e8N Nd7 Nf6 Bb5 Qc6 Bd3 Rf3 Rg8 h8R Qb4 Rh6 Rh8 Nh7 Nb8 Rd6 Na6 Rd8 Bc5 Kd7 Bd6 c8R Nc7 Qc5 Na8 Rc6 Be7 Kc8 Bf6 Qd6 Be7 Qc7 Bf8 Nc3 Bd6 Rc1 a1B Nb1 Be7 Rg6 Bb2 Rgg3 Ba3 Qe2 Bf6 Qf1 Rb2 Rc6 Ra2 Qe2 Rc2 Qd1
B3N3/8/2N3pk/1ppQ1prN/q1nQ2Q1/1nB1q2b/2n3RR/QbrQ3K b - - 0 1 legal: proof: h4 e5 b4 a5 c4 axb4 f4 exf4 g3 fxg3 h5 d5 cxd5 g6 h6 Bg7 hxg7 Ra4 Qc2 Ra3 Qd1 Ra8 e4 c5 a4 h5 d4 f5 d6 Kf7 d5 b5 d7 b3 d6 h4 e5 g2 Kf2 b2 a5 h3 e6+ Kf6 a6 h2 a7 Nh6 g8Q Na6 e7 Qe8 d8Q Rh7 d7 Nf7 Ne2 g1N Kg2 Nf3 Nf4 Kg5 Nc3 b1B Na2 Rh4 Nh5+ Nd2 Nb4 Ne5 Nc6 Kh6 Bb2 Nb4 Qg4 Bb7 Ra2 Nec4 Qd5 Nc2 Bc3 Nb3 Bd3 Rh3 Be4 Re3 Rg1 Rg3+ Kh1 Rg2 Qdd1 Rg3 Qa5 Rg2 d8Q Rg3 Qh3 Rg5 Q8d4 Rd8 a8Q Rd6 Ra4 Re6 Bg2 Re1 Qhg4 Rf1 Ra2 Re1 Qde2 Rc1 Q8d8 Ba8 Q8d5 Bb7 Rb2 Qa8 Qa1 Qa4 e8N Ba8 Bf3 Bb7 Qed1 Ba8 Kg2 h1Q+ Kf2 Qh4+ Kg2 Qf2+ Kh1 Qe3 Rg3 Ne1 Rh2 Nc2 Rgg2 Bb7 Nb8 Bc6 Qd6 Be4 Nc6 Bd3 Q6d5 Bf1 Rg3 Bh3 Rgg2 Ba2 Be4 Bb1 Qe6 Nb6 Na5 Qf4 Ba8 Nc4 Qed5 Qe3 Nc6
2kq4/2N4r/3Qr1B1/1KNpR1b1/1p4RQ/1R1np1pb/RB1q1q2/3Qr2R b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Nb1 f5 exf5 h5 g4 hxg4 a3 b5 Ke2 b3 Ke1 Nc6 a4 b4 Nf3 Na7 Ng1 Nb5 axb5 Rh6 Ra7 Rh4 Ra1 Rh8 Ke2 e5 Kd3 g5 Kc4 b2 h4 e4 f4 d3 b6 d5+ Kb5 Kd7 c4 g3 h5 e3 f6 d2 c5 g4 f7 g2 c6+ Ke6 f5+ Ke7 f6+ Kd6 b7 Kc7 b8R g3 h6 Ra6 h7 Qe8 Ra2 Bg4 Nh3 g1Q Bd3 Qe5 Nc3 b1R Re8 Qf5 Na4 Bd6 f8R Nh6 f7 Ra7 Nf4 Qg5 Bb2 Qd8 Rg8 Be7 f8Q Nf7 Ne6+ Kc8 c7 Ne5 Bg6 Bg5 Nac5 Ra6 Qd6 Bh3 Re7 Qf2 Rgg7 Re8 h8Q Nd3 Qh4 Ra8 Nf4 Ra4 Re5 Ra7 Nfe6 Rc1 Rf7 Re7 Rf4 Ra6 Rg4 Rh7 Qc2 Re1 Qd1 Rc6 Nb3 Kb7 c8R Ra6 Rc7+ Kb8 Ra7+ Kc8 Nc7 Rc6 R7a3 Ra6 Qc2 d1Q Nc5 Qdd2 Rb3 Rc6 Qd1 Ra6 Qf8 Re6 Qd6
2Q5/pQ1BQr2/3q3R/R1rpp1p1/1Kb3Rq/1R4n1/1qkNN2R/1b3bB1 b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 f4 bxa4 g3 f5 Be2 fxe4 Bc4 Nh6 Bf1 Ng8 h4 Nc6 h5 Ne5 f5 g5 Qg4 Bg7 Qd1 Ng6 hxg6 Be5 Ba6 Bb8 Bf1 Bf4 gxf4 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 h5 c4 e5 b4 Ke7 c5 Kf6 b5 d5 g7 d3 Kc3 e3 b6 h4 c6 d2 c7 a3 b7 a2 b8R h3 Qe2 d1B Rb3 h2 Nd2 Bc2 Kb4 Ne7 g8R Ba6 c8Q Bc4 Bh3 Rh7 Rh8 Rf7 Ba3 Bb1 Rh6+ Ng6 Qb7 Rc8 Qg4 Rc5 Ne2 Qd6 Rg1 h1B Rg2 Bb5 Rh2 Bg2 Bc1 Bf1 Bb2 Bc4 Bd4 Kg7 f6+ Kf8 f5 Ne7 Nc3 e2 Bg1 e1Q Ne2 Qg3 Rh7 Qh4 Rh6 Rh7 f7 Kg7 Rh5 Kf6 f8Q+ Rf7 Qd8 Kg7 f6+ Kg6 Qgc8 Nf5 Qde7 Ng3 Bd7 Bf5 Re1 a1Q Reb1 Qb2 Ra1 Bb1 Ra5 Qe6 Rh8 Kf5 Rh6 Rf8 Nf3 Ke4 f7 Qc6 Qb6 Qd6 Qbb7 Rg8 f8R Rg7 Rfh8 Rf7 Rg2 Qg4 Rhh2 Qh3 Rh6 Qh4 Nc3+ Kd3 Nd2 Kc2 Ne2 Ne4 Rg4 Ng3 Re6 Qa1 Rf6 Qb2 Rh6
1n6/bKp1R2k/R3B2N/2BQrQnn/r3n2b/Q4p1N/2p1Rp2/Q1n4Q b - - 0 1 illegal: No possible last move
1bB1BN2/2k2B2/b2p1q1n/2q2bp1/5p1Q/nKRN1pRq/5B1B/1Q1n2N1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Na3 b5 Nb1 f4 h3 Ra6 h4 g5 h5 Rg6 hxg6 h5 Rh2 Rh7 Rh4 Rf7 Rh1 Rf5 gxf5 Qe7 Bb2 Qf6 Bc1 Qd8 Kd2 h4 e4 h3 a4 h2 c4 b3 g7 d3 Kc3 d2 f6 b2 c5 b4+ Kb3 Qa5 c6 Kd8 f7 Nh6 g8Q Qa6 c7+ Ke7 e5 Qb6 e6 Kd6 e7 Ng4 e8B Ne5 a5 Ba6 c8B Bh6 f8B+ Kc6 Qh8 Qe3+ Nc3 b1B Bc4 Nf7 Ra3 Qc5 Ne4 Bg7 Nf2 Bf5 Nd3 Kc7 Qh4 Nh6 Bcf7 Be5 Bb2 Bd6 Bd4 Nc6 Qb1 d1N Bf2 Ne5 Bg7 Nc4 Bgd4 Be5 Bg3 Bd6 Bdf2 Be5 Ka2 Bd6 Rc3 Na3 Kb3 Be5 Ne2 Bd6 Rg1 h1Q Bh2 Be5 Rg3 Qg2 Ka4 b3 Ng1 b2 Kb3 Qf1 Bg6 Qh3 Bgf7 Bb7 a6 Bd6 a7 Ba6 Qc2 b1Q+ Qb2 Qa1 a8N+ Kb8 Nb6 Kc7 Qb1 Be5 Rc2 Bd6 Rc1 Qf6 Rc4 Kd8 Rc2 Bb8 Rc3 d6 Nd7 Kc7 Nf8
kn2brR1/3p1N2/p2R2K1/1Q1r2QQ/RN1B2pp/1r1B3q/5Q2/2rQq2r b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 a5 e5 g3 exf4 a6 f3 Kd2 f2 Ra4 bxa6 Ra3 a5 Ra1 a4 Ra3 g5 Ra2 f4 Ra1 f3 Nh3 Bd6 Ng1 Bf4+ gxf4 Nc6 h3 Ne5 h4 g4 Bg2 Nf7 Bf1 Ng5 hxg5 Qb6 Bg2 Qf6 Bf1 Qd8 Kd3 h5 Ke4 d3 Kf5 a6 e4 d2 c4 a3 b4 h4 b5 a2 e5 Bb7 b6 Rh5 c5 Ke7 e6 Bc8 c6 Kd6 b7 Kc7 e7 Kb8 e8Q Qb6 c7+ Ka7 Bb2 Qc6 Bd4+ Qb6 Bd3 f1Q Nh3 f2 Na3 Nf6 Kg6 Qe1 f5 f1R Nc2 Nd5+ f6 Rf3 Nb4 Re3 b8R Bb7 c8Q Rg3 Qc5 Ne7+ Kg7 Nc6 g6 Rf5 f7 Rd5 f8Q Re3 Rd8 Nb8 Ng5 Bc6 Qf5 Bb5 Nf7 Bc4 Qb5 Rf3 Bb1 Rb3 Qf2 Qc5 Kf6 Bd3 g7 Bg6 g8Q Bh5 Qdf3 d1R Bd3 Rc1 Qg5 Bg6 Qd1 Bh5 Rb1 a1R Rb2 Rab1 Ra2 Bg6 Ra4 Ra1 Bb2 Qce3 Qh8 Rab1 Rg8 Ra1 Qhh5 Rab1 Nd6 Be8 Nf7 Ra1 Kg6 Rab1 Qfd2 Qh3 Bd4+ Rcc5 Rf1 Qf2 Re1 Nc6 Be5 Rc8 Q2c2 Ka8 Qgd2 Nb8 Bd4 Ra1 Qdg5 Qg1 Qf2 R8c6+ Re6 Rf5 Rd6 Rcd5 Qdf3 Qgg3 Qh2 Rh1 Qd1 Qe1 Qf2 Rc1 Kh6 Qh2 Nh8 Rf8 Nf7 Qh3 Kg6
5bN1/1NpK4/r1Rn1rr1/1Q2R2n/N2p1k2/1B1pbp2/1N2pQBN/1qR5 b - - 0 1 illegal: No proof kernel
1R4qQ/2p1Q3/rp6/R1RQ1b1p/n2R2qp/2B1R2B/pk4N1/b1rnNK2 b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 f4 Kd7 d4 Kd6 g4 e5 f6 h5 g5 e4 f5 e3 f7 b6 f6 e2 g6 Ra4 g7 Bh3 Nc3 Na6 Bb2 Bg4 Rh3 Qc8 Re3 Qb7 Nf3 Bd7 Bh3 Be7 f8R Nh6 g8R Ng4 f7 Bc8 Rg5 Bf5 Rb8 Nf2 f8Q Rh6 Qh8 Qc8 Qd2 Qd8 Nd1 Bf6 Bc3 Qg8 Rc1 a2 Rc2 Kd7 d6 Kc6 d7 Kb5 d8Q Kc4 d5 Kb3 d6 Nc5 d7 Ra6 Qe7 Na4 d8R Bd4 Rd5 Rc6 Rg4 Bg7 Rgd4 Bf6 Ra5 Qg4 Nb2 Nd1 Nd3 Bg7 Nf4 Be5 Qd3 Rc4 Qe4 Rc5 Kd2 e1Q+ Kd3 Qf2 Ne1 Qfg3 Nfg2 Qg8 Ke2 Q3g4+ Kf1 Bf6 Rc1 Rc4 Bb4+ Kb2 Qd5 Rc6 Rcc5 Be5 Rcb5 Rc1 Rc5 Kb1 Rdd3 Ba1 Rd4 Kb2 Bc3+
1n1B4/Kn6/2B1Nr1k/B1Q1n3/qR1Rq1n1/n1r5/1rQb1Rb1/qNR1R2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 h5 c4 d5 b4 f5 e4 Kf7 g5 Kg6 e5 d3 c5 a4 b6 h3 c6 d4 b5 h4 b7 h2 c7 f3 e6 h3 e7 f4 e8R d2 b6 a3 Bc4 a2 Be2 d3 Qc2 d1N+ Kf1 f2 Qa4 d2 Qa5 Nf6 Nf3 Qe7 Qc5 Ne4 Qe5 Ndc3 Bc4 Bh6 Nd4 Nb5 Ke2 f1N Kd3 d1Q+ Bd2 f3 Qc5 f2 Rf8 Ne3 Re1 f1R Ne6 h1B Rf2 h2 Bd5 Na3 Kd4 Ng4 Bc6 Qa4+ Kd5 Bd7 c8Q Ne5 Ba5 Rg8 Qc7 Rc8 Rc1 Kh5 g6 Bd2 g7 Kh6 g8R Nd6+ Rgg2 Be8 Rf4 Qh7 Rd4 Rf6 Qc2 Ra6 Kc5 Qe4 Rf2 Bg2 Re1 h1N Rff1 Bh5 Nc3 Qb3 Rf5 Bf1 Bb5 Nbc6 b8B Bf3 b7 Rb6 Rac1 a1Q Nb1 Nf2 Qe7 Bh3 Bc7 Qa4 b8R Nfg4 Bd8 Bh1 Rf2 B3g2 Rb7 Nb8+ Qc7 Bc3 Be8 Rb3 Rbb4 Rb2 Kb6 Nb7 Ka7 Bd2 Qd6 Rc5 Bc6 Rc3 Qc5
k1bqr3/1RN1b1bB/2QN4/q2n4/1qn3nB/b2Q1Nr1/2N1rRRb/N2K4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 Kd7 e5 Kc7 c5 Kb7 b6 f5 b5 a4 e6 a3 e7 d3 e8R g3 h5 g2 h6 d2+ Ke2 d4 h7 d3+ Kf2 a2 Rh5 f3 Re4 f4 Re2 g4 Rh1 Ne7 Rh2 Nbc6 Rh6 Ra3 Rg6 Na5 c6+ Ka8 c7 Nd5 Re7 Rb3 Na3 Nc4 Nc2 Rg8 Rf7 Ba3 h8N Re8 Rb1 a1B Rf8 Be5 Nf7 Bg7 Nd6 Rc3 Qe2 d1Q Na1 d2 Qd3 Qb3 Rb2 d1Q b7+ Ka7 b8N Ka8 b6 Qb4 Rf7 Qda4 Nc6 Qaa5 Nd4 Rb3 Ndc2 Rc3 Re6 g3+ Ke1 f2+ Kd1 f3 Bg5 Rb3 Be2 f1N Ref6 f2 Nf3 g1B Bh4 g2 Rf5 Bh2 b7+ Ka7 b8N g1B Re7 Ka8 Na6 Rc3 Rg5 Rb3 Rg2 Nfe3+ Kc1 Ng4 Kd1 Bf4 Ra2 Bgh2 Rd7 Bg5 Rf7 Bf5 Rd7 Be7 c8Q+ Qb8 Qc5 Qbb4 Rb7 Bc8 Qc6 f1R+ Nfe1 Rf4 Nf3 Re4 Bf1 Ngf6 Rf2 Re2 Bh3 Qdb6 Bf5 Ng4 Bh7 Qc7 Ne3 Qb8 Rd2 Qbc7 Nec2 Qd8 Rg2 Re5 Rdf2 Re2 Nb5 Rc3 Nd6 Nd2 Qd4 Bef6 Ne5 Rg3 Nf3 Nc4 Qd3 Be7 Nc7+
3brrB1/4N2R/nn4KR/BB1NQ3/1Qn1B3/1b1Rn3/b4r1n/kqB1n1n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 a2 c5 h2 c6 h3 c7 d2 Qg3 d1N Qg4 d3 Qh5 d2 Qg4 f2 Na3 f3 Bb2 Nf6 g8B+ Be6 c8R Nfd7+ Kf4 Ne3 e5 d1B Ba6 f1N Rc6 f2 Nc2 Nc4 Qh5 Nfe3 Bb5 f1N Nb4 Be7 Nd5 Na6 Ne2 Qb8 Nec3 Bd8 Ne7 Bc2 Rd1 a1N Ncd5 Ka2 Kg5 Bb3 Rc7 Nac2 Rd3 Ne1 Bc1 Ka1 Rc6 Bf7 Rh6 Ba2 e6 Bb3 Bh7 Re8 Be4 Bg8 Kg6 Ba2 Rg1 h1R Rg4 h2 Rh4 Rg1+ Qg4 h1N R4h5 Qc7 b8B Qb7 Bc7 Nhg3 Qe2 Qb8 b7 Rg2 Ba5 Rf2 Qd2 Bb3 Qb4 Nh2 Rh7 Ndb6 R5h6 Qe5 b8Q Ne2 Qc7 Qb2 Qe5 Ng1 Nc6 Ref8 e7 Rb8 e8B Ra8 Nce7 Rb8 Rd4 Qb1 Bf7 Ba2 Rh4 Na3 Nf6 Bc7 R4h5 Rbe8 R5h6 Bd8 Be6 Nac4 Rd3+ Nb2 B6f5 Bgb3 Be6 Nb8 Bg8 Na6 Qg5 N2c4 Nfd5 R8f3 Qg3 Rff8 Qe5+
3Q1R2/n1Q1bbN1/2NbQ3/Rqr3n1/2b2QRK/B1r1bQ1B/bn2q3/2b4k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 c5 g5 h5 a5 c6 g3+ Kf3 g4+ Kg2 a4 c7 a3 b6 a2 b5 d3 h6 d4 b7 d2 b6 d3 h7 Qe8 Nh3 f3+ Kg1 g2 Kh2 g1B+ Kg3 f2 Nc3 f4+ Kh4 g3 Qc2 d1B Nd5 f3 Qb3 d2 Nc3 g2 Rb1 a1B Ne2 Nh6 Rh2 Be6 c8Q Bf7 Qd3 Bdb3 Nc3 d1N Qd2 Be7+ Ng5 Nb2 Qdd8 Nc6 b8R Ra3 b7 Ba2 Nd5 Na7 Nb4 Rc3 Qcc7+ Bd6 Rc8 Qb5 b8Q Rg8 Ne6 Rg5 Rh1 Bh2 Qf8 g1B Ng7 Bf4 Bh3 f1Q h8Q Bge3 Rg1 f2 Rg4 Qfe2 Qfd8 f1B Qhf8 Kd4 e5 Ke4 e6 Kf3 e7 Rgc5 e8Q Kf2 Qe6 Be7+ Rg5 Bfd6 Nc6 Kf3 Bg4+ Kg2 Bh3+ Kh1 Qa8 Nd1 Ba3 Bb2 Ra1 Bbc1 Qab7 Nb2 Rb8 Bg8 Qf4 Nf7 Ra8 Bf8 Rg4 Ng5 Qcf7 Bfe7 Qbc7 Qg2 Qf3 Bfc4 Q7f4 Bf7 Bb4 Bb1 Ra5 Bba2 Ba3 Qb8 Qdd7 Qb3 Rf8 Qb5 Qe2 Qf1 Qdd8 Qd1 Qef2 Qe2 Q2f3+
q3r2Q/1knqr3/8/1B1rb1n1/rRrQ1rb1/1Q4NR/qBQR2bK/2Q3N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 e4 d5 b4 Kd7 g4 Kc7 Kg2 h5 c4 a5 g5 d3 e5 h3+ Kh2 d2 g6 d4 e6 a4 c5 h4 g7 a3 b6+ Kb7 b5 f3 e7 d3 e8R f2 Re2 f4 Nc3 a2 Ne4 f3 Bb2 Nf6 g8Q Nh7 Rc1 a1Q Qg7+ Qd7 Bg2 f1B Qd4 f2 Nf3 Ng5 Qd6 Bg7 Ng1 Qa2 Re3 Ra4 Ba1 Na6 Rc4 Re8 Qd4 Nc7 Qc1 d1R Bb2 d2 Rd3 Re1 Rb4 d1R Rd2 Be5+ Ng3+ Re4 Bf3 Bg2 Be2 f1R Qc2 Rff4 c6+ Ka8 b7+ Kb8 Qdc3 Rc4 Qc1 Ka7 b6+ Ka6 b8Q Re7 Rc2 Rd5 b7 Re8 Rd2 Re7 Qd4 Re8 Nf3 Re7 Kg1 h2+ Kf2 Bh3 Rb5 Rcb4 Qg1 Bd6 Qd1 Ne8 c7 Rg7 Qb1 Rc5 Qc4 Qd8 Qbc1 Bcg4 Rg1 h1R c8Q Qd7 Rg2 Re1 Qd4 Rg8 Bd1 Re7 Kg1 Be5 Rh2 Bf1 Qcc7 h3 Be2 Rh8 Qbc8 Ka7 Qc6 Nc7 Qg6 Rg8 Qgc2 Ka6 Qe8 Rh8 Qf7 Rhe8 Qfb3 Ka7 Rb6 Rca5 Ba6 Rc4 Rb4+ Rac5 Bb5 Kb6 Rhf2 h2+ Kh1 Bd3 Ng1 Be4+ Rf3 Ka7 Nf5 Bd5 Kg2 h1Q+ Kg3 Qh6 Kg2 Qa6 Kg3 Kb6 Rc3 Qa8 Rcd3 Rd8 b8Q+ Bb7 Qc8 Bg2 Kh2 Rg8 Qd8 Kb7 Rh3 Rd5 Ng3 Rh8 Qe8 Rhf8 Qh5 Rfe8 Qh8
8/q5nR/1Bb1R1Nq/N2k1rQ1/1b1Bn1B1/1rq4B/KnR2bBb/2Qbb3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kd6 Kc2 f5 Kb3 a5 h4 g5 e4 a4+ Ka3 g3 b4 g2 h5 g4 h6 d3 h7 d2 b6 f3 b7 f4 b5 g3 b6 f2 Bd3 f1Q Qf3 d1N Ra2 Qe7 Rh6+ Nf6 Ne2 g1B Rd2 g2 Ka2 a3 Qh5 f3 Bb2 f2 Nf4 Na6 b8Q+ Nc7 b7 Qe1 Kb3 a2 Na3 a1B Ka2 f1Q e5+ Kc6 e6 d5 c5 d4 Re2 Nce8 Bf5 d3 Rc2 d2 Bh3 Qa6 Qg5 Bf2 Bd4 g1B Rg6 Qc7 e7 Ng7 e8B+ Bd7 Rh6 Qd6 Bg6 Bh2 Be4+ Nd5 Bg4 Bc3 Bg2 Ba5 Nc4 Be7 Qe5 Rf8 Qg5 Rf5 h8R Qb6 Qe8 Rb8 R8h7 Qa7 Rg6 Bf8 Qe3 Nb2 B4h3 d1B Qc1 Qe3 Bg4 Bae1+ Na5+ Kb5 B4h3 Nf6 c6 Qc3 c7 Ne4 Rf6 Bc6 c8B Rd5 Bcg4 Rf5 Rf7 Qg6 Rf6 Qh6 Re6 Bc5 Ng6 Be7 Be5 Kc5 Bf6 Kd5 Bd4 Rc8 b8B Bc5 Bbe5 Rb8 Bc7 Rb3 Bd8 Bb4 B8b6
1q1Q1N1q/3qqR2/1n2rq1N/3kB1r1/Q1q2nN1/2rB1RK1/3bb1B1/B1b2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 h5 g4 a5 c4 f5 g5 f3 b6 d3 b7 a4 g6 d2 g7 a3 b5 f4 b6 h3 Rh2 a2 Be2 h4 Rh1 h2 Bd3 h3 Qe1 d1R Nc3 Nf6 g8Q Ra5 Bd2 Nh5 Bb1 Bh6 Bd3 Rc1 Nd5 Qe7 Ne3 Rc3 Ng4 Rg5 Qd8 Re8 e5+ Kc5 e6 d5 Qf1 d4 Ne2 Nd7 b8N Ba6 b7 Nb6 Qd1 Bb5 Rg1 h1Q Rf1 h2 Nd7+ Kc6 c5 Kd5 Rc1 a1B b8B Bb2 c6 Ba6 Rb1 Bc1 c7 Bb5 c8B Bc4 Bg6 d3 Ba6 Bb5 Be3 d2 Nd4 Be2 Qa4 d1Q Be5 Qb3 Nf5 Qb5 Nf8+ Qbd7 Bc5 Qg1+ Ke1 h1Q Rb3 Qd4 Bb4 Qc4 Kf2 Qc7 Ba3 Qb8 Bb2 Qh3 Ba1 Qh4+ Kg1 f2+ Kg2 Bd2 Nd6 Bc1 Bgd3 Bd2 Nf7 Bc1 Rh1 Bd2 Rh3 f1Q+ Kh2 f3 Rb5+ Qc5 e7 f2 Rb4 Qc1 Rf4 f1Q Rf6 Qcc8 Rf4 Qhe1 Rhf3 Qc4 Rf6 Nf4 Bb5 Qa3 Ba6 Qb1 Kg3 Qad6 Rf5 Qbb4 Bb5 Qf6 Ba6 Qh8 Rf6 Bg7 Nh6 Bc1 Rf7 Qa3 Bc7 Bd4 Bd6 Bde3 Be5 Bed2 Ne6 Reg8 e8B R8g6 Nf8 Qe7 Bb5 Re6 Ba6 Qhf6 Bb5 Qh1 Ba6 Bd1 Bf1 Be2 Bg2 Qa2 Bd3 Qc4 Bf1 Qdd6 Bb5 Qdd7 Bg2 Qh5 Ng8 Qh7 Nh6 Qhh8 Bh3 Qcc8 Bg2 Bd1 Bdf1 Be2 Bd3 Qcc7 Qa7 Qc4 Qa4
B1qq2QN/2r3nK/n1rNr2Q/1r2r1Bb/R1bB4/2k2q1R/1b1N3r/6NN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 a2 Be2 f2 Bf1 h2 Qd2 h3 Qe1 f3 Bb2 Rh5+ Kf4 Bg4 e5 Qc8 e6 Rb5 e7 Ra7 e8N Nh6 g8N Nf5 Kg5 Na6 Kg6 Ba3 b8Q Rc7 b7 Ng7 Bg2 f1R Qh4 d2 Nef6 d1R Nh6 d3 Nh5 d2 Ng3 f2 Kh7 Rde1 Nf7 d1Q Nh8 Ree5 Qh6 Bh5 Nd2+ Kd3 c4 Rfe1 c5 f1B Bc1 Kc3 c6 Bb2 Qa8 Re6 b8B Bc4 Ba7 R1e5 Qb8 Qf3 Bb6 Qff8 Bf3 Qfd8 Bd5 Rd7 c7 Rdd6 Ba8 Rc6 Rb1 a1Q Be3 Qa5 Ra1 Qa3 Bf2 Qaf8 Ra4 Qf3 Bd4+ Kd3 Nf5 Qb7 c8N Rc7 Nf7 Qd6 Nb1 Bd5 Nce7 Bb3 Qg8 Qd8 Nh8 Qbc8 Ne2 Ba2 Nd6 Kc2 Rf1 h1R Bg5 h2 Nd2 Rg1 Nef5 h1R Ra1 Rc1 Nfg3 Kd3 Rb1 R1c6 Rf1 Rh3 Rh1 Bc4 Ng1 Kc2 Rh2 Kd3 Nh1 Rh4 Rg2 Rh2 Rg3 Kc2 Rh3 Kd3 Bde3 Kc3 Bd4+
B2b1n2/2N1Nr1q/1bR4b/1n1nKR2/n4R1R/n5bb/1B2kN1q/3RrQ1Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 c5 a5 h5 g3+ Kf3 g4+ Kg2 a4 b5 d3 b7 Kd4 c6 d2 h6 Ke3 b6 d4 c7 a3 e5 d3 h7 a2 e6 Nf6 e7 Qd7 e8N Bh6 Nd6 Re8 h8Q Qh7 Nc3 Ra7 Be2 f3+ Kf1 f2 Kg2 f1N Na4 f4 Qg7 Nbd7 b8R Nf8 b7 Nd5 Rh5 f3+ Kh1 f2 Rb1 a1B Kg2 Bf6 Rb3 Bd8 Bb2 Re4 Qe1 d1N Qf7 Nd2 Rh4 N1c3 Rb4 Nb5 Nc3 Nb1 Nh3 d2 Ne8 d1N Qh1 N1a3 Bf3 Kd3 Rc4 Re1 Rf4 Bd7 c8R Bf5 Ne2 N1c3 Nd4 Na4 Nc6 Kd2 Be4 Ke2 Ne7 Bd7 Rc6 Be6 Nc7 Bf5 Qg1 f1Q+ Kh1 g2+ Kh2 Bd7 Qh1 g1B+ Kg3 Bb6 Nf2 Qg1+ Bg2 Bc8 Ra8 Bf5 b8R Rb7 Ra5 Be6 Rh3 Qh2+ Kh4 g3 Rb4 Nac3 Rba8 Rb1 Ne4 Na7 Rcc4 Ne3 Ne8 Rd7 Nc7 Re1 Qff1+ Kd1 Nf2+ Kd2 Bb7 g2 Rc6 Nac2 Kh5 Bf5 Rhh4 Bh3 Rf5 Nab5 Nc8 Rf7 Ra1 Ned5 Ne7 Na4 Ba8 Nca3 Rd1+ Ke3 Nd3 g1B Rbc4 Bg7+ Kg5 Bf2 Rcf4 Bg3 Nf2 Bg2 Rff6 Bh6+ Kg4 Qg8+ Kf5 Qh7+ Ke5 Bh3 Qfg1 Ke2 Rf5 Nd6 Qgg2 Ndb5 Qgf1+
q5qR/4n2n/b2b3b/1BR1BQrR/b6Q/1k1B1r2/2rnN1rr/N2KR1R1 b - - 0 1 illegal: No possible last move
4r3/R3B1Q1/bq1b4/q1R2qn1/B2r2b1/BQbBn3/1nN4N/KBq1b1kR b - - 0 1 illegal: No possible last move
1brB2b1/1n1q4/2n1qNbK/Qnk1n2n/B2q2B1/1R5R/N2Q2Bq/2r3BR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 a5 c4 f5 g4 h5 g5 h3 b6 f3 g6 f2 b7 h4 g7 f4 b5 d3 b6 h2 e5+ Kc5 e6 d5 e7 a4 e8Q d4 Qf3 a3 Qfe3 f3 Qg5+ Bf5 Qf6 a2 Ne2 h3 Ng3 Bg6 Qee6 Bd6 Qg4 Nc6 b8R Nge7 g8B Qd7 b7 Ne5 Rc8+ N7c6 Rd8 Rc8 Qff4 Bb8 Bg2 f1B Qgf5 f2 Nc3 Rh7 Rb1 a1N Nh5 Nb3+ Kd1 d2 Nf6 Nba5 Na2 Bd3 Rb3 f1N B8d5 Rh4 Rh8 Ng3 Bf7 Rh7 Be8 Nh5 Bb2 Bc2+ Ke2 d1N Qd2 Nc3+ Kf2 d3 Ke3 Nb5 Bd4+ Kd6 Bb6 Rh6 Bc7+ Kc5 Bd8 Bf7 Qg5 Bg8 Ke4 Qd4+ Kf5 Bb1 Bd7 Rh7 Be8 Rhc7 Rh7 Ng4 Kg6+ Nge5+ Kh6 Bc2 Rd1 h1Q Rh8 Qh2 Rh1 Qg3 Bd7 h2 Be8 Qgg4 Qf5 Ba7 b8B Nb7 Qfg5 Qe6 Rh7 Bb6 Ba7 Qdd7 Qa5 d2 Rh8 d1Q Qgd2 Bg6 Rh7 Qf1 Rh8 Qfd3 Rh7 Kd4 c5 Kc4 Rh8 Q3d4 Rh7 Nb8 c6 Kc5 Rd1 h1Q Rh8 Qh2 Rh1 Q7d5 Rh7 Rg7 c7 Qdd7 Rh8 Nbc6 Rh7 Rb8 c8B Rf7 Nd5 Rf1 Nf6 Rc1 Rh8 Kc4 Rh7 Bc7 Bb6 Qdh4 Bg1 Qhd4 Rh8 Kc5 Rh7 Qdd6 Bcd7 Rc8 Rh8 Bb8 Rh7 Qee7 Bg4 Qde6 Kg5 Nf4 Rhh3 Q7d7 Kh6 Nh5 Qc7 Qg7+ Kg5 N5d6 Be7 Qh7 Qd8 Nb4 Ba4 Nbc6 Qc7 Qhf7 Bd8 Nb5 Qca5 Qfd7 Kh6
kQ1b1nr1/1R1b2b1/BB2n2R/BQ1q2n1/5nR1/1N3b1b/1rN4b/1b2K1RR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 c4 g5 e4 f5 h4 a5 b4 d5 h5 Kd7 e5 Kc7 c5 Kb7 h6 f3 e6 a4 e7 d3 e8R f4 b6 f2+ Kd2 a3 b5 f3 h7 d4 Rh5 a2 Qe1 g3 Bb2 g4 Qe2 g2 Rf5 g3 Rh5 Bd7 Qe1 Na6 Qe5 Rb8 c6+ Ka8 c7 Nf6 c8Q Be7 Qg5 Nc7 Qe5 Ne6 Bc3 Rg8 h8B Nh7 Na3 Nhf8 Ne2 g1N Rc1 a1B Bf6 g2 Nb1 Nh3 Rh6 g1B Ba5 Bh2 Na3 Nhg5 Nc2 Bb2 Kd1 d2 Ra1 Bc3 Nc1 Bb2 Bd3 f1N Nb3 f2 Qc4 Ng3 b7+ Ka7 Qf4 f1B Be5 Nh5 Bec7 Bh3 Qb4 Ra8 b8R Bf6 Ke2 d1B+ Ke1 Bf3 Rc8 Rb8 b6+ Ka8 Ba6 d3 Qb5 Bg7 Qfb4 Bbf6 b7+ Ka7 Re7 Nhf4 Rf7 Be7 Rff6 Be4 Rh5 Bef5 Rfh6 Bef6 Rh4 Bg6 Rg4 d2+ Kf2 d1B Ke1 Bf3 Qd6 Ra8 b8R Bh7 Rb6 Rb8 Rb7+ Ka8 Bcb6 Bhe4 Na3 Bb1 Rc1 Be8 Qc7 Qd5 Nc2 Bd7 Kf2 Re8 Qbc4 Ba2 Nb4 Nd4 Qb5 Bd8 Rh1 Re5 Rae1 Bb1 Reg1 Nde6 Qd6 Re3 Qe5 Rc3 Ke1 Rc2 Qd6 Ra2 Nc2 Rb2 Qb8#
r2B1k2/QrRbn3/bbn1Nr2/4RbrB/2r2R2/1R3R2/b1Q5/2qbQ1NK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 f5 c4 h5 g4 a5 Kg2 d3 e4 a4 c5 a3 b6 a2 e5 d4 b5 f3+ Kh2 f4 b7 h3 g5 d2 c6 f2 g6 f3 c7 h4 b6 d3 e6 Bc5 g7 Rh5 e7 Nc6 b8Q Rg5 b7 Bf5 c8R Bb6 Qb3 d1B Qc3 d2 Qa5 Bb3 Qc5 d1B Rc7 Qc8 Be2 f1B Qc2 f2 Qa7 Bd7 Bf3 Ba6 b8R f1R Nc3 Bbc4 Bg4 Rf6 Ne4 Kf7 e8R Nge7 Rb1 a1R Nc5 Ra4 Rb4 Ba2 Rf4 Rc4 Bd2 Bf5 Ba5 Bd7 Nf3 Bf5 Rf1 Bd7 Kg1 h2+ Kh1 Bf5 Ng1 Bd7 Kg2 h1R R1f3 Bf5 Ne6 h3+ Kg3 h2 Kg2 Bf2 Rbb3 Bb6 Ne2 Re1 Ng1 Re5 Kh1 Rb5 Rd8 Rbb4 Rd5 Kg8 Re5 Rb5 Kg2 h1B+ Kh2 Bg2 Bh5 Bgh3 Kh1 Rbb4 Nd8 Bd7 Ne6 Bf5 Qh2 Kh7 g8Q+ Kh6 Qe8 Kh7 Nd8 Kg7 Qf2 Rb5 Qe1 Rbb4 Qg6+ Kf8 Qh7 Bf2 Qg6 Rb7 Qh7 Bb6 Qg6 Bfe6 Qc2 Bf5 Ne6+ Kg8 Nd8 Re4 Ne6 Bc5 Qd3 Nd8 Rc6 Bf2 Ng7 Kf8 Rc1 Qc6 Bc7 Bb6 Rc2 Qc5 Rc4 Qe3 Qc2 Qc1 Rc6 Rc4 Rcc5 Ndc6 Bd8 Nb4 Rc7 Nbc6 Ne6+
n1r3rk/2R1Bq1r/2N1R1Bn/2nr4/NB3nBb/B2b4/K3Q1R1/Qr3b1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 Kg7 c4 h5 Kc2 a5 Kb3 a4+ Kb2 d3 g5 a3+ Ka2 d2 g6 d4 b6 d3 e5 f3 b5 h3 b7 f4 c5 h2 b6 f2 c6 f3 c7 h4 e6 h3 e7 Bf5 e8Q Qd5+ Qb3 d1R c8B d2 Qe2 Bd3 Qe3 Nh6 Ne2 Qf7 Qe4 Na6 b8B Be7 b7 Rg8 Bg4 Nc7 Nd4 Kh8 Nc6 Bh4 Qe2 Re1 Qc4 d1R Nc3 Rc8 Rg1 h1R Rg2 h2 Na4 Rg8 Ba7 Rac8 b8B Na8 Bg5 Rb1 Bd6 Red1 Bb4 Rd2+ Nb2 Rdd1 Bge7 Rd2 Bac5 Rdd1 Kb3 a2 Ka3 Rd2 Na4 Rdd1 Qe1 Rd2 Be2 f1N Qec1 f2 g7+ Kh7 Bd1 Ne3 Bc2 f1B Qe6 Nd5 Qe2 Nf4 Qce1 Rbd1 Rc1 a1N Bcd6 Nb3 Ka2 Rgf8 g8R Nc5+ Kb1 Rfd8 Rg6 Kh8 Re6 Rf8 Ka1 Rg8 Bb1 Rb2 Ba3 Rb4 Ka2 Rd4 Rc3 Rd5 Bc2 Rb1 Qc1 Bb5 Bg6 Bd3 Bb4 Rg1 Qa3 h1R Qab2 Rg7 Qa1 Rh7 Ba3 Na6 Bdb4 Nc5 Rc4+ Rd4 Na7 Rd1 B4f5 Nh5 Rg5 Nb7 Rc7 Nc5 Nc6 Nf4 Bh5 Rb1 Rg7 Rdd8 Bh3 Rg5 Rg6+ Re5 Rg2 Rf8 Bg6 Rg8 Nc3 Rf5 Bg4 Rd5 Na4+
6Qk/1Q2n2r/1K1n1b1B/rNR1q1B1/BNR1brB1/5Qn1/rb2B1r1/n6b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 e4 Kf7 g4 Kg7 b4 a5 c4 h5 g5 d5 b6 d3 b7 f3 Ke3 d4+ Kf4 h3 Ke5 h4 g6 d2 b5 a4 c5 h2 c6 f4 c7 d3 b6 h3 Qb3 d1N Qa2 f2 Na3 d2 Nc2 f3 Qd5 a3 Kd4 a2 e5 Ba3 e6 Qg5 e7 Nc6+ Kc4 Ne3+ Kb5 d1R b8Q Ne5 e8Q Bb7 c8B Nf7 Bc4 f1R Qc6 f2 Bg4 Bb2 Ne2 Rh5 Nc3 Qe5 Nb4 Kh8 Bce2 Nc2 Bg5 Rd2 Rc1 a1B Qcc8 Ra2 g7+ Kh7 Rg1 Ne7 g8B+ Kh8 Bh6 Ba8 b7 h1R Kb6 h2 Qf3 Nd6 Nb5 Rf5 Qa7 Rf4 b8B Be4 Qc4 Rd5 Rg3 Rfg1 Qb7 f1N Bf7 Rg2 Be8 Rc5 Bc7 Rd5 Bd8 Rc5 Rh3 Ng3 Rh4 Rd5 Nc3 Rda5 Ba4 Re1 Nb5 h1B Rd1 Rf1 Rd5 Rf7 Rc5 Rh7 Qfb3 Rf4 Qf3 Bc3 Qe6 Bab2 Qf7 Na1 Qf8+ Ng8 Bdg5 Bd4 Qff7 Ne7 Rh3 Nf1 Q3b3 Qg7 Rc3 Ng3 Rc4 Qf6 Qe6 Qf5 Qf3 Bf6 Qed5 Qe5 Qg8+
4R1n1/2r1N2B/2nBN1b1/1nR1r3/qb2k1nN/3r1nK1/1Qb1b1RQ/1N2N2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 b6 a4 b5 h3 c5 h4 g7 a3 c6 h2 b7 f3 b6 a2 c7 f4 Bh3 d3 Qb3 d2 Bb2+ d4 Be6 d1R Bf5 h3 Nc3 d3 Qf7 d2 Bc1 Nc6 b8R Qe8 b7 Ra7 Qg6 Rh5 Ba3 Bb4 Rc1 a1N Qh6 Nc2 Nb1 N2d4 Bh7 Bf5 c8N Nb5 Ne7 Bg6 Rc5+ Kd4 e5 Ke4 e6 Re5 Rd8 Qd7 b8Q Rc7 Nf5 Qe8 Ne2 Qd7 Rg1 h1R Nc1 h2 Nd3 Qe8 Ne1 Qd7 Kf1 f2 Kg2 f1B+ Kf2 f3 e7 Be2 Kg3 f2 e8N Qd4 Nh4 f1N+ Kh3 Qc4 Rg2 Qc2 Qb6 Qa4 Rb8 Rc1 Qb7 d1B Qd2 Rd7 Nc7 Bc2 Ne6 Rc7 Qh6 Rd1 Re8 Nd2 Kg3 Nf3 Qb8 Rd3 Qc1 Rf1 Qb2 h1N+ Kg4 Nge7 g8N Nf2+ Kg3 Rg1 Qb3 Ng4 Qb2 Nd5 Ne7 Ndf6 Qa8 Rh1 Qd8 Ng8 Qd6 Rc3 Qd2 Bed3 Qf2 Be2 Qg1 Rb3 Qh2 Rd3 Rc3 Ba5 Bd6 Bb4 Rc5
2qr1r2/1N1rN3/2bb4/1Q2B1bQ/q1n1B2n/2NNbN2/R1B1K1kr/r1Rr4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 h5 f5 h6 d5 c5 g5 h7 a4 b6 d3 c6 d2+ Kf2 g3+ Kf3 g2 b5 d4 c7 a3 b7 d3 b6 g4+ Kf2 g3+ Kf3 a2 Nh3 g1B Nc3 g2 Nb1 Be3 Qe1 d1Q+ Be2 g1B Ba3 d2 Qh4 Bd6 Ng5 Nc6 b8Q Qa4 b7 d1R Bd3 Nh6 Ke2 Bd7 c8N Na5 Qh5 Bc6 Bc2 Nc4 Ne7 Qc8 Nc3 Bc1 Bb2 Bge3 Re1 Kd4 e5 f3+ Kf1 f2 e6 f4 Ke2 Rd8 h8N f1R Nhg6 Rd7 Ne5 Rh1 Nd3 Nf5 Rf1 Rh4 Rf2 Bcd2 Rc1 a1R Rg2 Rh2 Rf2 Qg8 Qbe8 Rc8 b8N Nh4 Na6 Rcd8 Nac5 Qf8 Nb7 Qg8 Nf7 Qh8 Nfe5 Qf8 Na2+ Ke4 Nf3 Qh8 Qb5 Qg8 Be5 Qh8 Nfe1 Qf8 Qh5 f3+ Kf1 Qg8 Rg2 f2 Ke2 f1R Nf3 Qh8 Ng1 Ba7 Ng8 Rc7 e7 Bh6 e8B Rcf7 Bb3 Rfd7 Ne7 Rc8 Bg6+ Rf5 Bh7 Bg5 Rf2 Bae3 Rg2 Rd2+ Ke1 Qd8 Bd1 Qc7 Bb3 Rcd8 Rf2 Qc8 Kf1 Ba7 Nc3+ Ke3 Ke1 Rff8 Nf3 Bb6 Kf1 Bbc5 Be4 Rd1+ Nde1 Bd4 Ra2 Ba7 Bbc2 Bb6 Bh8 Kf4 Bf6 Kg3 Bg7 Bf2 Ke2 Kh3 Nd3 Kg2 Bh8 Bfe3 Be5
1Q1b1Bb1/B1k1qq2/N3R2q/n1rbn1R1/3Q2Bb/KB1Rr1n1/2Np2b1/6B1 b - - 0 1 illegal: No possible last move
nqq1b1n1/N1Q1b1R1/k3QB2/2R1BQ1Q/4r1qN/K3pB2/5qr1/1brq2Q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 g4 h5 b4 d5 c4 Kd7 Kc2 Kc7 Kb2 Kb6 f4 a5 f5 a4 f6 d3 g5 d4 f7 h3 g6 e3 g7 h4 Nc3 d2 Bd3 a3+ Kb3 h2 Nh3 e2 Ng1 e1Q Qh5 e4 Bb2 a2 Rc1 a1R Nf3 h3 Rg1 h1Q Be2 h2 Nh4 e3 Bf3 Be7 f8Q d3 Qff5 R8a4 c5+ Ka7 b6+ Ka6 c6 d1Q+ Rc2 d2 c7 Rc1 b7 Bd7 c8Q Qf2 Nb5 Be8 Na7 Nd7 Bf6 Nb6 Qce6 Qc8 b8Q Qhg2 Qbd6 h1Q Qc7 Qg4 Rg3 Qhh2 b5+ Ka5 Kb2 Re4 Rc5 Rh6 Ka3 Rg6 Qcc6 Na8 b6+ Ka6 Qc7 Qdh1 Rg2 d1B b7+ Qd6 b8B Bc2 Rg3 Qd1 Rg1 Bb1 Rg2 Nh6 g8Q Rg7 Qd8 Qb6 Bbe5 Rg5 Qg7 Ng8 Qc7 Rg6 Qgh6 Rg7 Qhf4 Rg6 Qh2 Rg5 Qg1 Rg7 Qb3 Qbb8 Qbe6+ Bd6 Rg3 Qg5 Qd5 Be7 Qb3 Qf4 Rh3 Rg2 Rg3 Qg5 Qd5 Qf4 Rg7 Qg4 Qde6+
Q1nqBrkB/1r6/r2b4/1N5B/1rRb1np1/2Q2B1N/qBR3rq/1R2K2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 f5 e5 Kf7 h5 f3 b6 g3 c5 d3 b7 g4 b5 f2+ Kd2 f4 c6 g2 c7 a4 b6 f3 h6 d4 h7 a3 Qe2 a2 Bb2 Ne7 Bc3 Nd5 Rh4 Nd7 b8Q Ra6 b7 Nf4 Ba5 Nb6 Na3 Bd6 Rh1 Rf8 h8B Kg8 Re1 a1Q Rc1 Qa2+ Rc2 Bf5 c8B Be4 Bd7 Nc8 Kd1 d2 Nh3 g1B Bg2 f1R+ Qe1 Rf2 e6 Re2 e7 f2 e8B f1Q Bb5 Qf2 Bf3 Qh2 Qa8 Rg2 Bc3 Be3 Bb2 Bg1 Rc4 Bd5 Kc2 d1R+ Qd2 Rb1 b8R Be3 Rc1 d3+ Kd1 Bd4 Qc3 d2 Bh5 Bb7 Bbe8 Bc6 Ba1 Rb7 Nb5 Bd5 Bb2 Bc6 Kc2 d1R+ Be2 Qa1 Ba3 Rbb6 Na7 Rg3 Rb7 Rh1 Kd2 Qa2+ Rc2 Rhb1 Rb8 R1b2 Ke1 Bh1 Bf3 Rg2 Rb7 Rc6 Rb3 Rc7 Nb5 Rb7 Rbb4 Rb3 Bc1 Rba3 Rb3 R3a4 Rb1 Rb4 Bb2
b1kB4/N4BRN/1bb4K/r2R3n/1Qpqrn1R/1Q1Qn2R/1rqR4/4rr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Kg4 f5+ Kh5 c5 e4 c3 g4 f3 b4 c4 d4 c2 b6 f2 b7 a4 b5 a3 g5 a2 g6 f4 d5 h3 b6 f3 g7 h2 e5 Ra5 d6 Nf6+ Kh6 Nc6 b8Q Nh5 b7 Ne7 Bg2 f1R Qd3 f2 Bd5 Ng6 Bg5 c1Q Bf7 Qc2 Na3 Ngf4 Rd1 a1R Rd2 Rab1 Nh3 Rb2 Nb5 Be7 Bh4 Re8 g8R Qb6 Rg7 Qd4 Bf6 Bd8 Ng5 Bb6 Be7 Re1 Bd8 f1N e6+ Kc6 d7 Ne3 Rf1 h1R Rf3 Rhf1 Rh3 Re7 Qa8 Re8 b8Q+ Bb7 Qaa7 Ba8 e7 Rg8 e8R Rf8 Re5 Re8 Rd5 Re4 Qe5 Ne6 Qab8 Nef4 Qbd6+ Kb7 Qe8 Re7 Qf8 Re4 Q6a3 Kb8 Qfb4 Kb7 Bf6 Kb8 d8R+ Kb7 R8d7+ Kc8 Qdb3 Qe5 Rg3 Nd3 Qb3a4 Ref4 Rd4 Qe4 Bd8 Nf6 Qa4b3 Qd5 Re4 Qd4 Q3c3 Rg4 Qab3 Rgf4 Rg8 Rg4 Kg7 h5 Kh6 h4 Rd5 Nh5 Rg7 h3 Rd7 h2 Rd5 Rh4 Rh3 Rhf4 Nh7 h1B Rd7 Rh4 Rf4 Bhc6 Rd5 Nc1 Qd3 Ne2 Rf6 Re4 Rf4 Kb7 Rfg4 Kc8 Rgh4 Nef4 Na7+
rq2q2q/1nNq4/r1kqb3/R3rNpB/2Q2NQ1/2NR2NB/5B1b/K4b1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 Kc2 Kd7 Kb2 f3 e4 g3 h5 g2 h6 a4 e5 a3+ Ka2 f4 b6 d3 e6+ Kc6 e7 d2 e8N d4 b7 d3 h7 f2 c5 f3 Nd6 Qe8 Nf5 Bd6 Nc3 Nf6 Rh3 Bh2 Be2 Nbd7 b8Q f1R Qf4 f2 Bh5 Ne4 Nge2 g1Q Neg3 Ra6 Qdg4 d1Q Be3 d2 Bd4 Rf8 h8N Re1 Ng6 f1B Be3 Qa4 Bf2 d1Q Qc1 Qh1 Nf4 Qd6 Kb1 a2+ Kb2 Kc7 c6 Ndc5 b5 Nb7 Qc2 Be6 b6+ Kd8 c7+ Kd7 c8B+ Kc6 Qd3 Qd1 Qde2 Qb8 Qc2 Qdd6 Qb3 Qf3 Qb4 Qfd3 Qc4+ Nbc5 b7 Qd1 Bd4 Nf2 Be3 Nh1 Bd4 Re5 Bf2 Qa7 b8N+ Kc7 Nc6 Qb8+ Nb4 Kb6 Nbd5+ Kc6+ Qb3 Nb7 Nc7 Qdd7 Qb4 Q1d4 Qc4+ Qc5 Rb1 Rh8 Ka1 Rg8 Rb5 Rf8 Qb3 Qcd6 Ra5 Rg8 Nge4 Rh8 Rd3 Rf8 Neg3 Rh8 Kb2 a1Q+ Kc2 Qg8 Rad5 Bf7 Qe2 Qdd8 Nb1 Re7 Ne3 Qa8 Bh3 Q8d7 Nef5 Re4 Qa2 Be6 Qg4 Qag7 Qb3 Re5 Kb2 Qgd8 Nc3 Rf8 Bg6 Qh8 Ra5 Q8e7 Qb4 Rb8 Bf7 Qee8 Ka1 Qa7 Qd4 Ra8 Bh5 Qab8 Qc4+
qNq1NN2/1n2r2r/2N2Br1/qR2p3/1R2n3/1Q3Qbr/1N4b1/kB1K1nrB b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kf6 f4 h5 c4 d5 f5 Ke5 g5 a5 c5 d3 c6 Kd4 f6 e3 c7 a4 g6 e2 b6 d2+ Kf2 e1R g7 h3 f7 h4 b5 a3 b7 a2 b6 h2 Ba6 h3 Qe2 d1R Bd2 Nc6 b8Q Na5 b7 Rh7 Qf1 Nf6 g8N Ne4+ Kf3 e6 Bf4 Bd6 Na3 Kc3 f8N Kb2 Be5+ d4 Bg7 Bg3 Be2 Ra6 Nf6 d3 Ne8+ e5 Rc1 a1Q Rc5 d2 Bd3 Rg6 Bb1 Be6 c8B Bd5 Bg4 Qc8 Ne2 Qa2 Bf5 Ka1 Bf6 Rc1 Rg1 h1R Rb5 d1N Nc4 h2 Nb2 Rcc7 Nd4 Rce7 Nc6 Ne3 Bd7 Rd1 Ke2 Qa4 Qg2 Nf1 Qf3 Rd3 Rg2 Rg1 Bh3 Rb3 Kd1 h1Q Rh2 Qa2 Bg2 Rc3 Rh4 Rb3 Qa7 Re3 b8N Nb7 Qa4 Qa3 Qb3 Qa5 Bh3 Qg2 Nc4 Qga2 Nb2 Qa8 Rg4 Q2a5 Bg2 Ned2 Qf4 Bh4 Bh8 Rh3 Bf6 Bg3 Bh1 Be4 Qf5 Bg2 Rgb4 Ne4 Qff3
3Bk3/Rb1R1R1n/2bb2Bn/3pn3/2rq2bR/b2rBQ2/1Q2R1K1/2q1qNN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 c4 f5 e4 h5 g4 h3 b4 a4 b6 h2 e5 f3 b5 d3 e6 h4 g5 h3 b7 d2 b6 a3 c5 f4 e7 a2 c6 Ra4 c7 Nh6 g6 Rc4 g7 Nc6 b8B Bb7 c8R Ne5 Qc2 d1B Ke1 f2+ Kd2 f3 Ke3 d6 Bd3 f1Q g8R f2 Rg7 Bg4 Rf7 Qe1+ Qe2 f1Q Nd2 Bc6 b7 Rh7 Rb1 a1B Bg6 Bb2 Bc7 Ba3 Ra8 Rg7 b8Q Rg8 Bb2 Qc1 Bd4 Qfe1 Ra7 Rh8 Nf3 Rh7 Qb2 Rg7 Rf1 h1B Ng1 h2 R1f4 Bb7 Ra1 Bhc6 Bc5 Qd7 Bd8 h1N Re4 d5 Kf4 Rh7 Qf3 Nf2 Kg3 Nh3+ Kg2 Ng5 Be3 Rh8 Ra2 Nh7 Nf1 Qd6 Ref4 Qc5 Ra1 Qd4 Ra2 Kd7 e8R+ Bfe7 Rg8 Bd6 Rgg7 Ke8 Qb3 Ba3 Re2 Bed6 Qb2 Rf8 Rd7+ Rf7 Be4 Rf5 Rgf7 Rh5 Bg6 Rh3 Qe4 Be6 Rh4 Bg4 Beg5 Rhc3 Qf3 Rd3 Be3
RN2RNK1/n1Br1N2/2Bpb1N1/1QR2rb1/n2k3N/nQ2bbq1/5r2/q2b4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Kd5 b4 h5 g4 a5 g5 d6 b6 a4 b7 f3 b5 f2 g6 f4 g7 f3 b6 h3 Nd2 h4 Ne4 a3 Be3 h2 Ng5 h3 Qb1 a2 Nf7 Ne7 g8Q Ra5 Bg2 Nbc6 b8N f1R b7 Be6 Nd7 Rf2 b8N Bh6 Nf8 Nc8 c4+ Kc5 Ke4 Rh7 Bd2 d3 e3 Rb5 Ba5 d2 Bc7 d1B Qb3 N6a7 Qg5+ Bd5+ Kf5 Nb6 Kg6 Na4 e4 Kd4 e5 Be6 Qh5 Qh4 c5 Bg5 c6 Qg3 Rc1 a1B Rc5 Be3+ Kf6 Bc3 Qg5 Bcd2 Kg6 Rh6+ Kg7 Rh7+ Kg8 Bc1 Qg6 Bg5 Qf5 Bce3 Qfb1 Rd2 Qf5 f2 Qfb1 f1N Bf3 Bd7 e6 Rf2 e7 Nd2 e8R Nc4 Bg2 Ra5 Qb5 Be6 Q1b3 Na3 Nf3+ Ke4 Rg1 h1Q Nh4+ Kd4 Bf3 h2 Bg2 Bdg4 Ra1 Bd1 Rc2 Nc3 Qf1 Nab1 Bd8 Be2 c7 Nc6 c8N Raf5 Ra8 Na4 Ne7 Na3 Neg6 Na7 Bc7 Bh5 Qfb5 Qa1 Rc5 h1B Bc6 Bd1 Qa2 Bhf3 Qab3 Bc8 Nfe5 Re7 Qb1 Be6+ Nf7 Rd7 Q1b3
R4QBq/1b1N2b1/pn1b2Rr/B4N1N/6N1/n2r1QB1/r3nq1n/1nk2N1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kf6 h4 Kf5 b4 Ke4 c4 d5 c5 g5 h5 f5 e3 f3+ Kh2 d3 b6 d4 h6 f4 b7 d2 b5 d3 h7 f2 c6 g3+ Kg2 g4 b6 Nd7 b8N Bb7 c7 Nh6 c8N Bd6 Qe1 d1R Rh3 f3+ Kh1 d2 Bb2 Nf7 Rh6 Nfe5 Ne2 Kd3 e4 Kc2 Ne7 Nc4 e5 Na3 e6 Qe8 Bh3 f1N Bc3 Nh2 Nf4 Kc1 Nf5 f2+ Bg2 f1N e7 Qg8 Bd5 g2+ Kg1 Qf8 e8N Ng3 Bg8 Qf6 Ba5 Ne2+ Kf2 Qc3 Qh1 Qc8 Nf6 g3+ Ke3 Qd8 Ng4 Qf8 Rg6 g1B+ Nf2 Qc8 Qf3 g2 Nh5 Qe8+ Kd3 Qe5 Ng4 Bd4 Ra2 g1Q Ra1 Bc6 b7 Nb6 Nd7 Qf2 b8B Bb7 Bc7 Qe8 Ra2 Bg7 Ra1 Be7 Bg3 Bd6 Ra2 Re1 Ra1 d1N Ra2 Qe5 Nd2 Ndc3 Nf1 Ncb1 Ra1 Qf6 Ra2 Qg2 Ke3 Rd1 Ra1 Qh1 Kf2 Rd3 Nd2 Qe1+ Kg2 Qf2+ Kh1 a6 Nf1 Rf8 Ra2 Rc8 Rb2 Rc2 Rb4 Qd8 Rc4 Qh4 Rc8 Qh3 Ra8 Ra2 Bd5 Rf8 h8Q Rf6 Qf8 Qh4 Nf4 Qh8 Bg8 Re6 Nh5 Rf6 Rg5 Rh6 Rg6
2K1B3/Q1b2k2/2R1n3/1p2rr1b/2Rbb3/3bb3/q2BN1nn/1QQbQNQB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 a4 c5 e4 g5 d4 b5 h4 f3 Kg3 c4 d6 c3 d7+ Kf7 h5 f2 h6 c2 d5 f4+ Kg2 g3 Kh3 g4+ Kg2 b3 d6 b2 h7 Ne7 e5 Nf5 a5 Na6 Rh6 Nc5 a6 Ne6 a7 Qa5 d8Q Qa2 d7 Bd6 Nd2 b1B Qh4 Rf8 d8Q Bc7 h8Q Re8 Qd3 f3+ Kh1 g2+ Kh2 g3+ Kh3 Ne3 Ne2 g1B Bg2 Rb8 a8Q f1B Qa7 f2 Qhd4 Bb7 Qe1 Bf3 Q4c3 Bh5 Qg8+ Ke7 Qg5+ Kf7 Kh4 Rbd8 Bh1 Rd5 Qcc5 Bh3 Nf1 g2 Bd2 c1B Qcc2 Bb2 Qcc1 Bd4 Qb3 Bbf5 Qbb1 B3g4 Rg6 Be4 Kg3 Qc2 Ra4 Qa2 Rc4 Rc5 Nf4 Bd1 Ne2 Nf4 Rc6 Ne6 Nh2 f1B Qg4 Ng7 Kf4 Bf2 Qg3 g1N Qg4 Nf3 Qg1 Bg2 Nf1 Nh2 Kg5 Bd3 Kf4 Bge4 Kg5 Kg8 Kf6 Rf8+ Ke7 Rf5 Kd7 Ng2 e6 Rce5 e7 Ne6 e8B Bfe3 Kc8 Kf8 Bd7 Kf7 Be8+
BqR2bnb/1q3qnK/b1N5/N1nr3k/Q1Q5/Nrp5/2RRN2B/2r2Nr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 Kf7 g4 Kg6 d4 a5 e4 h5 g5 c3 d5 c4 d6 c2 b6 a4 b7 a3 e5 c3 b5 h3 b6 h4 d7 a2 e6 h2 e7 h3 e8N Kh5 g6 Ra5 g7 Na6 b8N Rd5 b7 Nc5 Bg2 Rh6 Be3 c1B Nd2 Rb6 Nf1 Rb3 Nd6 Qb6 Bf2 Be3 d8R Bd4 Rc1 a1R Rc2 Rc1 Nc6 Qb5 b8N Ba6 Bg3 Qb4 Nd7 Qb8 Ne2 Be5 Rg1 h1Q Nb5 h2 Na3 Bd4 Na5 Be5 Kf2 f3 Ke3 f2 Rc8 f4+ Kf3 Bf6 Qd4 Be5 Qa4 Bf6 Nd2 f1N Ne5 Ne3 Nec6 Nf5 Rd1 Be5 Nf1 Bd4 Rdd2 Bf6 Kf2 f3 Bf4 Nh4 Kg3 f2 Bc7 Nf5+ Kf4 Bd4 Be4 Qg2 Bd6 h1R Be5 Rg1 Bd6 Nge7 g8Q Bh8 Bc7 Ng7 Be5 Rd3 Qgc4 Ng8 Bd6 Qf3+ Ke5 Qf7 Bd5 Qfb7 Bh1 Nh6 Kf6 Rd5 Bc7 Ng8+ Kf7 Kg5 Be4 Kg4 Kg6 Kh4+ Kh7 Kh5 Ne3 f1Q Bh2 Qff7 Nf1 Rdg5 Ne5 Q7a7 Ba8 Qab7 Nec6 Rf5 Qcb4 Rd5 Qc4
n2R1R1r/N2N2k1/1rqn1p2/qBr1nN2/1b3K2/5n1q/QNb1B3/Q4bBN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 a5 e4 h5 g4 d3 c4 a4 g5 f6 g6 a3 c5 a2 g7 Kf7 e5 f3 Ke3 h3 b6 f2 c6 d4+ Kf3 h2 c7 h4 b5 d2 b7 h3 b6 d3 Ke4 Nh6 g8B+ Kg7 e6 Bb4 e7 Ra5 Be2 f1B Kf4 Na6 b8N Rc5 b7 Bf5 c8N Qa5 Nd7 Nf7 b8Q Nd6 Na7 Nc7 Nc3 Na8 Bc4 Bh7 Qb3 d1R Be3 d2 Bb5 Rb1 Na4 d1N Nb2 Nf2 Qb7 Bg6 Qa6 Ng4 Qa4 Bc2 e8N+ Kf7 Ng7 Ne5 Nf5 Kg8 Nd1 Rb3 Rc1 a1N Qa2 Kh7 Bf2 Rb1 Be3 Nb3 Nb2 Nd4 Rd1 Ndf3 Qa1 Qd8 Q6a2 Qa5 Bec4 Kg6 Ne2 Kh7 Rg1 h1Q Rg8 h2 Bg1 Qg2 Rd2 h1Q Neg3 Qgh3 Rf8 Kg6 Be2 Kh7 Ne3 Kg7 Rd1 Ne1 Rd4 Qc6 Nh1 N1f3 Nf5+ Kg6 Bbd3 Bc3 Nb8 Nb5 Rdd8 Nd6 Nc4 Rb6 Nb2 Bb4 Nd7 Kh7 Bb5 Kg6 Ne3 Kg7 Nf5+
QrR1b2B/1nK1Q3/4prnQ/1qN1kb2/Q1qb1nr1/1Q1R4/5qN1/R1rB4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Ke6 g4 a5 f4 h5 c4 d5 g5 a4 b6 d3 Kc3 h3 Kd4 h4 Kc5 a3 b5 h2 g6 d2 b7 d4 f5+ Ke5 b6 h3 f6 a2 g7 d3 f7 e3 Bb2+ Qd4+ Kb5 e2 c5 e1N c6 Ra6 c7 Bf5 c8Q Nd7 Kc6 Ng2 b8R Nc5 Bc1 Nf4 Nc3 Qc4 Qh5 d1B Qh7 d2 Be2 Ba4+ Kc7 d1R b7 Be8 Na4 Rd4 Bd1 Rf6 Bb2 e6 Qd7 Ne7 g8Q Neg6 Rc8 Bg7 b8Q Nb7+ Nc5 Qb5 f8Q Qc4 Rb1 a1Q Qa4 Qaa2 Qh6 Qab3 Qgf7 Qbb5 Ne2 Rg8 Rf1 h1Q Ra1 h2 Rf3 Qg2 Q7e7 h1R Rd3 Qf2 Qba8 Re1 Qh3 Bh8 Qfh6 Rg1 Bc2 Rc1 Bd1 Nh5 Nf4 Rgf8 Ng2 Nhf4 Rc3 Re4 Rd8 Rg8 Rdd3 Rd4 Qg3 Rd8 Qgh3 Rb8 Qhh7 Rff8 Qe3+ Qe4 Rd8 Nh4 Ne1 Rg4 Nc2 Nhg6 Qf3 Qec4 Ne3 Bf6 Rc8 Kd4 Ng2 Rf7 Qh6 Rf8 Qe2 Bg7 Qec2 Rf7 Rh3+ Kd5 Bf6 Rf8 Qcb3 Bh8 Bg5 Bd4 Bf6 Rf7 Bh8 Rf6 Rg3 Ke5 Rd3
1Rbr2k1/1p2K1R1/q7/1Q6/BB1nQrQ1/2n3b1/bn2rBQQ/2qNN1bq b - - 0 1 illegal: No possible last move, all moves rejected
b5N1/1N6/2n5/bp1nQbr1/bnN2rr1/2RN1Nqb/2BR4/K2QQbBk b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Kd7 g4 Kd6 d4 f5 Kd2 h5 Kc2 c5 Kb2 f3 e4 b3 g5 h3 g6 c4 g7 h4 a5 c3+ Ka3 h2 a6 c2 Kb2 f2 a7 h3 Qe1 f4 Ra3 f3 Ra5 Rh4 Qd2 Qc7 Qd1 Nf6 g8N Rg4 Rc5 Nc6 Be3 c1N Na3 Na2 Rc3 Nab4 Bd3 f1R Bc2 f2 Nf3 b5 Qe1 Bf5 Ka1 Rg5 Rg1 h1B Rg2 h2 Qd1 Rd8 a8Q Rd7 Qc8 Rdg7 Qe8 Rg4 Qh5 R7g5 Qh4 Be7 Qh8 Bd8 e5+ Kd7 e6+ Kd6 e7 b2+ Kb1 Qb8 e8Q Ba5 Qhh5 Na6 Ka2 b1B+ Ka1 Nab4 Qe4 Ba2 Qh8 Bb3 Nc4+ Kd7 d6 Nfd5 Qhe5 Ba4 Bd2 Qc7 Qee1 Qb8 Be3 Qc7 Qg7+ Ke6 d7 Qg3 Qh8 Be4 d8N+ Kf5 Nf7 Bd3 N7e5 Ke4 Rg1 Bg2 Qf6 Bh3 Rg2 h1B Rh2 Nc7 d5 B1g2 d6 Ncd5 Qh8 Bh1 Bd4+ Kf4 d7 Bf5 d8N Na7 Ng1 Nc7 Kb2 Ba8 Kb1 Ncd5 Ka1 Nac6 Qg7 Qd3 Nb7 Kg3 Qf6 Qf3 Nd3 Qe3 Rh1 Kg2 Qe5 Qg3 Nf3 Nd8 Nfd2 Ndc6 Rh2+ Kg1 Rg2+ Kh1 Q1e3 Re1 Bc5 f1B Nf3 Na6 Qf2 Ree4 Qfe1 Ref4 Bg1 Nab4 Rd2
rN1r4/1bNBR2B/nrb1K3/2N5/bRB1nQ2/pB3rr1/2bB2q1/k1b2Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 h2 b6 f3 Qd2 Kb3 c4 f2 c5 f4 c6 h3 c7 f3 Qg5 d2 Ne2 d1B Qf6 d3 Nec3 d2 Na4 Bc2 Nbc3 d1B Nb5 Qd2 Rb1+ Ka2 Rb4 Na6 b8N Ka1 Nc5 Bb7 Bc4 f1R c8B f2 Nc7 Rg1 B8e6 Rg3 Re1 h1R Qf3 Qe2 Bd2 Nf6 g8B f1R Bh7 h2 Bed5 Qf2 Ke6 Bh6 e5 Qg2 Qe2 Rf5 Qf1 Rd8 Bb3 Bc6 b7 Ne4 Bdc4 Bg5 Nbd7 Rff3 b8Q Rg1 Re3 h1B Re2 Rh8 Qf8 Bb7 Qf4 Rhd8 Nb8 Bh6 Ke7 Rg6 e6 Bg5+ Kf7 Rh6 e7 Rb6 e8B Bc6 Qf5 Bb7 Bd7 Be3 Be1 Bc1 Qf4 Bc6 Ba2 B2a4 Bd2 Bdc2 Ke7 Qg6 Re1 Rgg3 Bab3 Qg4 Re2 Qh3 Kf7 Qg2 Ke6 Nd6 Ne8 Bb7 Nc6 Re3+ Kf6 Qg1 Nb8 Bhc6 Re1 Qg2 Nc7 Ref3 Re7 Ne4+ Ke6
3N1N1N/NkB3Rn/3qqnb1/R1bR1qN1/2n1B1n1/n7/Knp5/3QrQr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 Kc7 d4 a5 Kd2 h5 Kc3 f5 Kb2 f3 d5 c3+ Ka3 c2 e5 f2 e6 a4 e7 h3 e8Q c4 d6+ Kb7 d7 c3 g5 f4 g6 h4 b6 f3 g7 h2 Qd3 h3 Qde3 Bc5 Qe1 Nf6 g8R Nh7 Bg5 c1N Bd3 f1N Bc2 f2 Nd2 Nd3 Ka2 a3 b5 Nb2 Ne4 Nd2 Rg7 f1Q Ne2 Qf5 Qf1 Rg8 Qh5 Ndc4 Nf4 Qe7 Qhe2 Qd6 Bd8 Ra6 Rhg1 h1Q Qed1 h2 Ng5 Qhd5 Bc7 h1N Ng6 Qd5e6 Nh8 Nf2 Rg3 Re8 Rd3 Ng4 Rd5 Ra7 Be4 Ra5 Kb3 a2 d8N+ Ka8 Qfe2 Nd7 Qef1 Ndf6 b7+ Ka7 b8N Rg8 Ndc6+ Kb7 b6 Bd7 Na7 Be8 Nd7 Bg6 Nf8 Ra6 Nc6 Ra8 Na7 Re8 Rc1 a1N+ Ka2 Nc2 Ra1 Ka6 b7 Na3 b8N+ Kb7 Nbc6 c2 Bg2 Qed7 Bh1 Re1 Be4 Q7e6 Nd8+ Ka6 Qfd3 Nh6 Ngf7 Nb1 Qf1 Bh5 Rg3 Rg6 Ndc6 Rg4 Kb3+ Kb7 Ra5 Nba3 Ka2 Rg8 Rh3 Rg2 Rg3 Rg1 Rg7 Nhg4 Ng5 Bg6 Nd8+
N1BqbnNn/1Nb1Nn2/2r1RQ1r/5rR1/6rn/p5R1/bB3QN1/K4nk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb2 a5 b6 d3 g5 Kd4 g6 a4 b5 d2 c5 Ke3 e5 Kf2 b7 d4 g7 a3+ Ka2 d3 c6 f3 b6 h3 e6 f4 c7 h4 e7 h2 e8Q h3 Bb2 Bd7 c8N Bd6 Bf6 Ra6 Ne2 Ne7 g8N Bc7 Bg5 Rh4 Qh5 Ng6 Qg4 Be8 Nce7 Nd7 b8N Nh8 b7 Nf8 Bf6 Rc6 Qg5 Rg4 Qc1 d1N Rg1 h1B Qd2 h2 Nd7 Ne3 b8R Ng2 Bb2 Nh4 Nc5 Bg2 Qf6 h1R Qc2 d2 Rb5 d1N Nbc3 Ne3 N3a4 Nef5 Re1 Nh6 Ka1 N6f7 Nb6 Bh3 Rg3 Bg2 Nd4+ Kg1 Nde6 f2 Nb7 f3 Nf4 Rh3 Be2+ f1R Na8 f2 Rg5 Rh1 Ba6 Rh2 Re3 Bd5 Ng2 Ba2 Rf3 Nf5 Rg3 Rh6 Bc4 Nh4 Be6 Rc5 Bc8 Rf5 Rb1 Rc1 Qe2 f1N Qd2 Rcc4 Re1 Rcc5 Re6 Rc6 Qf2+
2BQr1R1/2nn1Rrr/BB6/2Q2Nq1/1B1N1pq1/r1r1nQb1/8/B2rkbK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 b6 a4 b5 h3 c5 h4 g7 a3 c6 h2 b7 f3 b6 a2 c7 d3 Bg2 Kd4 e5 d2 e6 Kd3 e7 d4 e8B h3 Na3 Nf6 g8Q Bd6 Qg3 Rg8 Qh4 Nd5 Nb5 Bg3+ Kf1 f2 Nd6 f4 Bd7 Rg7 Nf5 Qg5 Bb2 Ra3 Rb1 a1R Nf3 Rc3 Rg1 Raa3 Ba1 h1R Qh8 h2 Qd8 Rc4 Be6 Nd7 b8B Rcc3 Ba7 Ba6 c8Q Nc7 b7 Bc4 b8B Bb5 Qe1 d1R Bb6 Kc2+ Bc4 d3 Bh3 d2 Rb4 Kc1 N3d4 Ba6 Kg2 f1N Qf2 Re1 Qe2 d1R Qf3 Kd2 Ra4 Bb5 Ra7 Re8 Rb7 Ke1 Be2 Ba4 Ba6 Bb5 B8a7 Be2 Bc5 Bb5 Bb4 Bc4 Bg4 Bb5 Bb6 Be2 Kh3 Bb5 Rg2 Ne3 Ra7 Bf1 Rb7 Nb5 Qc5 Nc7 Ra7 Nf6 Qc4 Bf2 Qg3 Rf7 Qcd5 Na8 Qb5 Qg6 Re7 Nc7 Nh4 Qh6 Bgc8 Nd7 Qc6 Rg1 Qc5 Rh7 Rf7 h1Q+ Qh2 Bd3 Rg3 Qf3 Qh1 Bf1+ Kh2 Qhh5 Rg8 Rgg7 Qg2 Qfg4 Qf3 Bg3+ Kg1 Qhg5 Nhf5
1k3Nb1/1r1qbr1r/2n1QR1p/2n2QQ1/3Q1NB1/3b1KB1/5Rn1/rrn1Q1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 Kd7 e4 Kc7 g4 a5 c4 f5 e5 d3 g5 h3 c5 d4 c6 f3 g6 a4 g7 h2 e6 h6 e7 d2 e8Q f4 Be2 a3 Qe1 d1N+ Kf1 a2 Qd2 f2 Kg2 f1B+ Kf3 d3 Qe6 Na6 b6+ Kb8 b7 Nb2 b5 Rh7 Nc3 Qd7 Qe1 d2 Nd5 Ne7 g8Q d1N Qg5 Nc5 Qef5 Ne3 c7+ Ka7 b8N Ng2 Bd1 Bd3 b6+ Kb7 Be3 Nc6 Bf2 Be7 Bg3 Ra7 Rc1 a1R Rc2 Ka8 Rf2 Bca6 c8Q Rb7 Qh8 Bac4 Qd4 Bb3 Kg4 f3 Nf4 Bg8 Qfe6 Qc7 Nd7 Qd6 Nf8 Kb8 Qef5 Qd7 Qee6 Rba7 b7 Rb1 Rd2 f2 Kf3 f1R+ Rf2 Rba1 Be2 Rfb1 Ngh3 Rf7 Rhf1 h1R Ng1 Rh5 Qgf6 Rg5 Bd1 Rgg7 Q6g5 Rh7 Qe1 Ba6 Qfe6 Nbd3 Be2 Kc7 Qef5 Nc1 Bd1 Kb6 b8Q+ Rb7 Qbd6 Ka7 Qde6 Kb8 Kg4 R7b4 Re2 Ka8 Rff2 Nb7 Qa2 Kb8 Re6 Bb5 Rf6 Nc5 Qae6 Bd3 Kf3 Nh4+ Ke3 Rb7 Bg4 Ng2+ Kf3
n1N4n/3b2Qn/3R2p1/1B6/b1KQ2Q1/BnBR1r2/1bNrq1BB/rk1b2n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 c4 Ke5 b4 d5 e4 a5 h4 f5 h5 g3 c5 a4 h6 f3 b6 g2 b7 g6 c6 f2 c7 f4 b5 f3 h7 a3 b6 a2 Bd2 Qe7 Nh3 g1N Rh2 Bg7 Bg2 f1N Nc3 f2 Qe2 Na6 b8B Ng3 b7 f1R Bc1 Nf6 Ba3 Rf3+ Qe3 Rd8 h8B Bd7 c8Q+ Nc7 Nf2 Nh7 Nb5 Nf5 Nd6 Nh6 Rh4 Nf7 Rd1 a1N Rh3 Nb3 Rd2 Ra5 Nd1 Na8 Bc7 Ra6 b8Q Bf6 Bg7 Nh8 Qbb7 Ra7 Nc3 Ra6 Na2 Ra7 Nb4 Qe6 Kc2 d3+ Kc3 Ra4 Rd1 d2 Nc2 d4+ Kd3 Qe8 Rg3 Ra6 Kc4 d3 Qc5+ Kf4 e5 Ra5 e6 Bb2 e7 Ra7 Rc1 d1B Bc3 d2 Qcb4 Ra4 Qa7 Ra5 Qcb7 Ra6 Nc8+ Kf5 Qb7b6 Ke4 Qf6 Ra4 Qg7 Ra5 Rh3 Ra4 Bh2 Ra5 Na1 Bc2 Rf1 d1B Rf2 Ra4 Rd2 Ra6 Rd4+ Ke3 Rd6+ Ke2 Kd5 Kd3 Qg4 Ra4 Bd4 Kd2 Bc3+ Kc1 Qad4 Kb1 Rg3 Qf8 e8B Qe7 Rh3 Qe2 Rg3 Bd3 Nc2 B3b5 Bab4 Ra1 Ba3 Ba4 Rh3 Bf5 Bb5 Bd7 Rg3 Rd3 Re3 Rf8 Rf3 Rd2 Rd3 Rf3 Kc4
1b1nrR1q/1b1N1bn1/1BNp1B1B/8/2b1Q2q/2bnr1QB/kN2b3/R4BK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 g4 Kd5 g5 Kc4 e4+ d3 g6 f5 e5 a5 g7 h5 b6 a4 e6 h3 b7 f3 c3 f4 b5 h4 b6 h2 e7 a3 e8Q a2 Qe5 h3 Qd6 Nf6 g8N Nc6 b8B Bb7 Qe1 Kb3 c4 d2 c5 d1B Qee5 Ra3 Bg2 Be2 Qdd4 Nh5 Ne7 Ng7 Qee4 Bc4 Bd6 Bf7 Bc7 Qb8 Qg6 Nd8 Nc6 Bd6 Bf1 Re8 Nc3 Be5 Na4 Qa8 Ke1 f2+ Ke2 Bd6+ Qde4 f3+ Ke3 Bg3 Nb2 Be5 Qg3 Qa4 Bd3 f1B Kf2 Be2 Bh6 Qb4 Rf1 a1B Bb5 Ka2 Bd3 Bc8 b7 Rc3 b8B Bb7 Ba6 Re3 Bb6 Qa4 B8a7 Bb8 Bd3 d6 Bb5 Nde6 Bd8 Qd4 Bf6 Nd8 Bb6 Qe5 Ne7 Qf4 c6 Qh4 c7 Bec4 c8B Be2 Nc4 Bc3 Nb2 Bec4 Nc6 Be2 Ne5 Bec4 Nd7 Be2 Bf4 Bec4 Ne2 Qh8 Rhg1 h1Q Nd4 h2 Nc6 Be2 Re1 Bec4 Re2 Qh4 Kf1 Qh8 Bh6 f2 Qeg4 Qe4 Q4f3 Qg4 Qe4 h1N Kg2 Qh4 Ra1+ Kb3 Rc2 f1B+ Kg1 Bfe2 Rcc1 Nf2 Rf1 Nd3 Nd1 Bfd5 Be7 Ne5 Rf3 Bcd3 Nf6 Bf1 Bh3 Bg8 Nd7 Be6 Rc1 Ka2 Rf8 Bd5 Bf6 Bf7 Ba4 Bb5 Nb2 Bbd3 Bd1 Bdc4 Be2 Nd3 Re1 Bg2 Rd1 Bf3 Bef1 Be2 Ra1+
2r3bb/RQ3B2/RKpnQ2n/N1nN2r1/2Q1r1Qn/Q7/3n1k1q/N1b2rB1 b - - 0 1 illegal: No possible last move
2B2bNB/R2q2Bb/Kpr1r1Qr/RNq5/q6r/1n2rn1k/B2Br3/N5Q1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kf6 Kd3 Kg5 Kc4 Kg4 Kb5 h5 a4 f5 e4+ f3 g3 c5 a5 f4 d6 c4 e5 b3 e6 b6 d7 c3 a6 b2 a7 h3 d5 c2 d6 h2 e7 h4 e8Q h3 Qd5 f2 Ra3 f3 Qe1 Ne7 Qed1 Rh4 Qc6 Na6 Nc3 Nc5 Bd2 c1Q Bc4 f1Q Nge2 f2 Ba2 Ng6 Ra5 Nb3 Qg2 Rb8 a8B b1R Bb7 Rb2 Ka6 Ne5 Nb5 Nf3 Ned4 Qfc4 Qdg1 f1R Nc2 Re1 Na1 Qe8 d8B Bf5 d7 Bh7 Bc7 Rc8 d8B Re6 Be5 Qd7 Bg7 Qa4 Bdf6 Rcc6 Bc8 Qc5 Bh8 Rh6 Bfg7 Re3 Q2f2 Rhe6 Qfg2 Kh5 g4+ Kh4 g5 Rc2 Qb1 Rb2 Rf1 h1R g6 h2 Qg1 Kh3 Qd3 Nh4 Rf7 Nf3 Bdc3 Rbe2 Bd2 Qdd4 Ra7 Qd7 Qc1 Rf1 Qe1 h1R Qeb1 Rff2 Qg1 Rfh2 Rb7 Kh4 Bgc3 Rcd6 g7 Rc6 g8N Rh3 Ra7 R3h2 Qd1 Kg4 Q3c2 Rhh6 Bcg7 R1h4 Qg6+ Kh3 Qdg1
1bN2R1N/1np1BN2/K1Qq2k1/1Q3rr1/2br4/1qN3b1/n2b2b1/N1RB1bB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 g5 e4 a5 Ke2 f5 d4 Kf7 h4 f3+ Kd2 f2 Kc3 g3 b6 g4 h5 g2 h6 g3 b5 a4 e5 a3 h7 a2 b7 f4 e6+ Kg6 b6 f3 e7 Nc6 b8N Nf6 e8N Bd6 b7 Be6 d5 Rf8 Ne2 g1R Nd4 g2 Nc2 Na5 Be2 f1B Nc6 f2 b8Q Nb7 Na7 Bg3 Kb4 c3 Kb5 Qd6 Be3 Ne4 Qc1 Rf5 Nc8 Ra4 Rh4 Rd4 Rf4 Rd3 Bb6 Rd4 Ka6 Bg8 Ng7 Bf7 Ne6 Bg8 Ng5 Bf7 Nca3 c2 Nc3 Bg8 Rb1 a1Q Nf7 Qa2 Ra1 Qb3 Rf3 Qe5 d6 Qf4 d7 Qd6 Qf4 c1B d8B Bd2 Rc1 Rb4 Be7 Rd4 Nd1 Nc3 Nc2 Na2 Nc3 Rf6 Qe4+ Rf5 Ng5 Bd5 Nf7 Be6 Na1 Bd5 Bb5 Bfc4 Rf4 f1B Rf2 Be6 Qc6 Bed5 Rf4 Rh1 Rf2 g1B Ba7 Bdg2 Rf3 Be6 Be2 Rhh5 Rf4 Rhg5 Bc5 Na5 Qb5 Bc4 Bd1 Nb7 Nh6 Rfd5 Rf8 Rdf5 Nf7 Rdg4 Bb4 Ba7 Bc5 Bb8 Bg1 Rd4 h8N+
qqrN2RB/Q4BBq/1b1k3r/4r3/K3pR2/2q1BQ2/1B1rn1r1/N1Q1n2b b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 Ke7 c4 d5 Kc2 h3 Kb3 h4 b6 h2 b5 h3 c5 a4+ Ka3 e3 b7 e2 c6 e1R b6 d3 c7 d2 g5 d4 f5 d3 g6 Kd6 g7 Ne7 g8Q Rh6 f6 Nd7 b8B Bb7 f7 Ng6 Ba7 Nc5 c8Q Nf4 Nf3 Ne2 Rg1 h1Q Bb2 h2 Ng5 Qg2 Qc1 d1R Qh3 h1Q Nd2 Qb8 Nb3 d2 Ne6 Nd3 Nd8 Qe4 Qe3 Qh7 Qg4 Qh3 Qgg3 Bh1 b7 Qhc8 Qef3 Qc3 Qgf2 Be7 f8B e4 Ka2 a3 Bg7 Bf6 Rb1 Bd4 Na1 Bb6 Bh3 Rf1 Be6 Ne1 Rg4 Rg1 Rf4 Rg2 Bf7 Qf6 Kb3 a2 Ka4 Qc3 Qc2 Rc1 Qd1 Rc2 Qc1 d1R Qg1 Rdd2 Qge3 Qbc7 b8B Rd5 Qef2 Re5 Qg1 Rd2 Bh8 Ba5 Be3 Bb6+ Ba7 Rc8 Bg7 Ba5 Bad4 Qb8 Qgf2 Bb6 Bh8 Re8 Bdg7 Re5 Qc2 Nd3 Rg1 Ne1 Qc1 Qcc7 Nb3 a1Q+ Kb4 Re7 Bed4 Rgg6 Bgf6 Qaa8 Na1 Ba5+ Ka4 Qc3 Rg3 Rg4 Q2e3 Re5 Qg1 Rgh4 Rg8 Rg4 Bfg7 Rg2 Ba7 Bc7 Qb6+ Kd7 Qa5 Kd6 Be3 Bb6 Qa7
2nqN3/Q2kbb2/N3Rb2/bR1B4/2qrpN2/QqBb4/3q1nK1/1r1NB1N1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 d5 g4 e3+ Kf3 e2 f5 e1B c5 a4 c6 d3 f6 a3 g5 a2 b6 d2 c7 d4 b5 h3 b7 h2 g6 h4 f7+ Kd7 b6 d3 g7 h3 Be2 Na6 b8Q Be7 f8B Nc5 b7 Ra4 Ba3 Rd4 Nc3 Ne4 Bb2 Nf2 Rb1 a1B Qb3 d1Q Qa7 d2 Qba3 Qb3 Bc4 d1Q+ Kg3 Rh6 Bd5 Qd2 Kf3 Qc4 Nd1 Rb6 Bc3 Qb3 Kg3 Qc4 Rb5 e4 Ra5 Rb1 Rb5 Qb3 Nf3 Qc4 Rg1 h1Q b8N+ Ke8 Rf1 h2 Ng1 Be6 c8N Bf7 Nb6 Bb2 Na6 Ba1 Bb7 Qb3 Nd5 Kd7 Nf4 Bb2 Nf3 Qc4 Rg1 Qb3 Rg2 Qf1 Ng1 h1B Kh2 Qfd3 Rg6 Bf3 Re6 Be2 Kg2 Qdc4 Ba8+ Qcc7 Bd5 Bd3 Qb8 Qcc4 Qa8 Nh6 g8N Nf5 Bh6 Nd6 Qa7+ Qdc7 Bg5 Nc8 Bh4 Ba1 Nh6 Bb2 Nf5 Ba1 Ng7 Bb2 Q7c5 Qd8 Ne8 Bf6 Qa1 Ba3 Qb6 Bd6 Qa3 Bde7 Qa7+ Qcc7 Qc1 Qe2 Bd2 Ng4+ Bf2 Qe3 Qa8 Qcc4 Qa3 Qe2 Bb4 Qe3 Bh4 Bc3 Be1 Nf2 Ba5 Qd2 Qb8 Bcb4 Qb6 Bbd6 Qb8 Bc7 Bc3 Ba5 Qa7+
4b2Q/3qnkq1/1K2b2Q/B2p3R/b2Q1r1Q/nb2r1b1/1RB3Q1/1NN2Nrr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 h5 c4 d5 b4 f5 e4 d3 c5 a4 e5 a3 c6 f3 Ke3 h3 Kd4 a2 e6 d2 g5 h2 g6 h4 c7 f2 b6 h3 e7 f4 Kc5 f3 b7 Qd7 g7 Rh6 b5 Re6 b6 Nc6 b8Q Nd4 b7 Re3 Ne2 Nc2 Kb6 Kf7 e8N Ne7 Nf6 Na3 Nh5 Ra4 Nhg3 Rf4 Qa4 d1B Qba7 Bc2 b8Q Bb3 Bg2 f1B Bd2 f2 Nc1 Bfa6 Be4 f1B Bc2 Bab5 Ba5 Bfe2 Qbb7 Bh5 Qba6 Bg6 Qe4 B5a4 Nf1 Bh5 Qh7 Bg6 Qh4 Bh5 Rg1 h1R Rg2 h2 Rg5 Rg1 g8Q+ Kf6 Qh8+ Kf7 Qb2 Bg6 Rh5 h1R Qd4 Bg7 Qd2 Be5 Qg2 Bb7 c8Q Bf5 Qd3 Be6 Qd4 Bbc6 Qh8 Bb8 Qa6 Bcb5 Nc3 Bd6 Rb1 a1Q Rb2 Be5 Qd1 Bb8 Nb1 Bc6 Ra2 Qg7 Rb2 Rg4 Qc4 Qh6 Qhh2 Bg3 Qce4 Qd6 Rg5 Qg7 Q2h6 Rgh4 Qdd4 Be8+ Ka7 Qc6 Rh5 Qd7+ Kb6 Rg4 Qh3 Rh4 Qeg2 Rf4 Qh4
N7/1B1N1qN1/K2p1bqr/3QRb2/3Brn1b/1b1NBqNq/knq5/3R3Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 f5 b4 a5 g4 h5 e4 a4 b6 d6 Kb5 h3 c4 a3 g5 a2 e5 f3 g6 h4 b7 h2 g7 h3 c5 Kd5 e6 d3 c6 f4 c7 d2 e7 f2 e8N f3 Bb2 Qf6 Ba3 Be7 Bb2 Rh6 Bc3 Bf5 c8N Qg6 Qe2 d1Q Nd2 Ra4 Ne4 Nf6 Nc5 Nh5 Bg2 f1B Nd3 Nf4 Bd4 Na6 b8B Qc2 Bba7 Bh4 Re1 a1B Qd1 Nc5 Ne2 Bc3 Kb6 Kc4 b5 Kb3 Ng3 f2 Re5 Ka2 g8Q+ Rc4 Ba8 Na4+ Ka6 Nb2 b6 Bg2 b7 f1Q b8N Bd5 Rg1 h1Q Bb7 h2 Nd7 Qhf3 Ncb6 h1Q Ng7 Qhh3 Na8 Rb4 Bab6 Bb3 Qd5 Rc4 Be3 Re4 Qc1 Q1f2 Rd1 Qff1 Re7 Bcf6 Bbd4 Q1g2 Re5 Qf7 Qd2 Qg1 Qe1 Qgg2 Qh1 Qg1 Ne2 Qgg6 Ng3
n1r2N1q/n6p/RNbk1B1B/Q1brR3/3nnr2/4QnNq/3rBN2/1K4N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 a5 Kc2 f5 g4 d5 b4 h3 e4 a4 b6 f3 b7 f4 b5 f2 g5 d3+ Kb2 h2 b6 d2 g6 f3 g7 a3+ Ka2 d4 c5 d3 c6 Ra4 e5 Nf6 g8Q Nd5 e6 Rf4 c7 Kd6 e7 Bd7 Bb2 Bc6 Qc1 d1R Qg5 d2 Be2 f1N Bf6 f2 Nc3 Ng3 Kb1 f1N Ra2 Ne4 e8N+ Kc5 Ng7 Kd6 Nh5 Qc8 Ra1 a2+ Kb2 Be7 Ng3 Qg8 Kc2 Qg7 Qh5 Rc8 Qg5 Qh8 Kb2 Na6 b8B Nab4 b7 Nb6 Qa5 Na8 Ba7 Bf8 b8N Be7 Nd7 Bf8 Rb1 a1N Be3 Nac2 Ra1 Nd4 Kb1 Be7 Nh3 Bf8 Nf2 Be7 Rg1 h1Q Nf8 Nh2 Re1 Nhf3 Ra4 Qh3 Ra3 Rf5 Bh6 Rf4 Ra1 Bb7 Ra2 Nbc6 Ra3 Na7 Ra4 Kc6 Ra3 Bc5 Ra4 Re8 c8N Rd8 Nb6 Rc8 Bc4 Kc7 Nce2 Kd6 Ng1 Bc6 Re3 Re1 Bd3 d1R Be2 Rd3 Ra2 Red1 Ra1 R1d2 Ra2 Neg5 Re5 Ne4 Ra1 Ndb5 Qca3 Rd5 Qe3 Nbd4 Qb4 Nb3 Ra6 Nbd4 Qa5
1Q2Q2q/1q2p1qR/Br2rn2/n7/K1bn1R2/1QBQqnNq/1Q3B1b/kN6 b - - 0 1 illegal: No possible last move, all moves rejected
2Bb1bn1/1pkNRN1K/2qb2r1/1Qrr4/1qb4N/1n2Nr1N/2BB1bR1/3Q4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 g5 h4 f5 a4 c5 e4 g3+ Kf3 c4 e5 c3 d6 g2 d5 b3 h5 c2 e6+ Ke8 e7 Kd7 h6 b2 h7 Qc7 a5 Qc6 Bd2 c1B Na3 b1Q a6 Qb4 a7 Na6 Ra2 Nc5 Nh3 g1B Nc4 Ba3 Ne3 Bf2 Bd3 Nb3 e8B+ Kd8 d7 Kc7 d8N Be6 Bc2 Rc8 Bd7 g4+ Ke2 g3 Kf3 g2 Nf7 Rd8 Re1 g1B Bc8 Bh4 a8Q Bgf2 Qa6 Rd7 Ne5 Bd8 Qa4 Rg7 Rb2 Rg6 Nd7 Bd6 Qb5 Bf8 Ke2 f3+ Kd3 f4 Re2 Bfh4 Ra2 f2 Rb2 f1R Re1 Qa5 Ke4 f3 Ra2 Bf7 Kf5 Bad6 Re2 Rfg1 Rg2 f2 Ra4 Qac3 Re4 Qb4 Re6 Nf6 Re7 Rhg8 h8N f1R+ Nf4 Bf2 Nh3 Rg4 Ng6 Rd4 Nh4 Rg6 Qbe2 Ng8 Qb5 Rf6+ Kg5 Be6 Kh5 Rf5+ Kg6 Rc4 Kh7 Rc5 Rh2 Rgg5 Rg2 Rg6 Qa6 Bdg3 Ng5 Be1 Nh3 R1f3 Qb5 Bef2 Nb6+ Kd6 Rf7 Bde7 Rg7 Kc7 d6+ Kb8 d7 Kc7 d8N Bd6 Nd7 Bc4 Nf7 Rfg5 Nh8 Bd8 Re7 Rgd5 Nf7
4bN2/1r3kqr/Rqr2bqB/7Q/nnbNQ2Q/3Qr1QB/NR1K3p/6b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 a5 g4 f5 b4 h5 c5 a4 c6 d3 g5 a3 c7 d2+ Ke2 d4 g6 h3 e5 f3+ Kd3 a2 b6 h4 b7 f4 b5 h2 g7 f2 b6 f3 e6 h3 e7 Nd7 b8N Ra3+ Qb3 d1Q+ Nd2 Ngf6 g8Q Rh6 b7 Nc5+ Kc4 d3 Kc3 Qc2+ Kb4 Bd7 c8Q Na4 Qcc4 Qb6+ Qb5 Qcc6 Be2 f1Q Qg4 f2 Qbc4 Qfg2 Ngf3 f1B Qge4 Qg7 Nb1 d2 Nd4 d1R Bg4 Re3 Nc3 Nd5+ Kb3 Be2 Kc2 Qcg6 Bf5 Bc6 Nd7 Kf7 b8Q Rdd3 Re1 h1R Qg3 h2 Qb1 Rh7 Bh3 Rd1 Qcb4 Bc4 Re2 Rdf1 Kd2 Rf6 Qbd3 B6b5 Bf5 Rc6 Bh3 Rf1 Qeh4 Rf5 Qc5 Nb4 Qce5 Rff6 Qeh5 Rc7 Rf2 Rb7 Rg2 Rc6 e8Q+ Kg8 Qee5 Kf7 Qee4 Bd6 Nf8 Bc5 Rb1 a1B Rb2 Rd6 Na2 Be8 Rb3 Rc6 Ra3 Nb2 Ra6 Na4 Nf3 Bf6 Nd4 Be6 Kd1 Bd5 Rb2 Bc4 Kd2 Re1 Nc2 Bg1 Nd4 Re3 Kd1 Rf3 Bh6 Re3 Kd2
rR1Q2RQ/2n1q1B1/3BQ2n/1Q4rb/Q1b2q2/KN2bb2/3rqNp1/kq3B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 c4 Ke5 Kc2 g5 Kb3 a5 h4 f5 c5 d5 h5 d3 c6 Kd4 h6 g3 c7 g4 h7 g2 e5 g3 b6 d2 b7 f3 e6 a4+ Ka2 f4 b4 a3 b5 f2 e7 f3 e8Q Bg4 c8Q Bh5 b6 Bh6 Kb3 a2 Bb5 f1B Qf5 f2 Nc3 Bc4+ Kb4 f1Q Qfd7 Be3 Qc7 Nh6 Ne4 Qf4 Rb1 a1Q Qa4 d1B Qe6 Bdf3 Nf2 Qe7+ Qcd6 Rg8 h8Q+ Rg7 Rh4 Qa2 Rg4 Qe2 Ka3 Na6 b8B Kc3 b7 d4 Rb4 d3 Qdd8 d2 Bd6 d1R b8Q Nc7 Bb2+ Kd2 Qb6 Rg5 Bg7 Kc1 Ba6 Rd2 Qbb5 Be4 Nf3 g1Q Rb2 g2 Nd4 Bf3 Bf8 Qd3+ Qbb3 Bb5 Nh3 Rc5 Rg8 Rg5 Nf2 Qe1 Bg7 Qb1 Qbd5 Bbe2 Rb8 Qd1 Bd3 Qe1 Bh7 Bc4 Bd3 Qd1 Bf1 Qe2 Qde5 Qb6 Qh3 Kb1 Qhe6 Ka1 Qea5 Qb7 Qaf5 Qbe4 Qb5 Qb1 Nb3#
2nr1B2/1k1Rr2N/1b3BQ1/1B2B1Q1/2K2Rbr/2R5/rB1q1p2/q1qb1Nbn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 Kd7 b4 Kc7 h4 a5 c4 f5 c5 f3 c6 g3 h5 g4 e5 f4 h6 f2 h7 g2 e6 f3 e7 g3 e8Q a4 Qf7+ Nd7 Qd2 a3 Qh6 a2 Nd2 Bc5 Qh3 Ne7 Qhh5 Nf6 Qfg6 Ng4 Qhg5 Bb6 Nh3 g1Q Bb2 g2 Rd1 a1Q Be2 Ra2 Nf1 Kb8 c7+ Kb7 Rh2 Be6 c8R Bd7 Rc6 Nc8 Rc3 Qh1 Rd2 g1B Rg2 Re8 h8B Re7 Bf6 Qc1 Q5f5 Be6 Ng5 Qhh8 Nh7 Qd7 Nh2 f1R Rf2 Re1 Bf1 Re4 Qfg5 Qdd8 Be2 Bd7 Nf1 Rf4 Nf8 Qh1 Nh7 Qa1 Kc2 d3+ Kb3 d4 Kc4 Bf5 Rd1 d2 Bd3 Nh2 Be2 Rh4 Bd3 Ng4 Be2 Bc7 b6 d3 b5 Bd7 Rg2 Nf2+ Rg4 Qc1 Re4 Bg4 Rf4 Kb8 b7 Bb6 Qg7 Ka7 b8B+ Kb7 Q7g6 Qa1 Bbe5 Qc1 Re1 d1B Bd6 d2 Bd3 Rd7 Bf8 Re7 Ree4 Qd6 Rd4 Qb4+ Kd5 Qa5 Kc4 Qg2 Be2 Nh1 Rd6 f2 Rd8 Qe4+ Rd4 Qeb1 Rd7+ Bc7 b6 Qa1 Qg7 Ba4 Qf7 d1R Qfg6 Rd6 Bd3 Bad1 Be2 Ka6 b7 Bb6 b8B Rd5 Rc2 Qad2 Rc3 Rd6 Bc7 Kb7 Bd3 Rd5 Bce5+ Ka8 Rc7 Bh5 Kb4 Bhg4 Bb5 Rd8 Kc4 Kb8 Rd7+ Ka8 Bc7 Kb7 Bce5+
r2n4/2q4b/1B1Bq2R/2B5/br2Q1Bq/2N3R1/qknpKbn1/1BN1NQb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Kc5 g5 Kb4 g6 a5 b3 h5 e5 d5 g7 f5 c5 f3 e6 h3 c6 h2 e7 f4 e8B f2+ Ke2 d3+ Kd2 d4 b6 f3 c7 h4 b7 h3 Ne2 a4 Bc6 a3 Bb5 a2 Ng1 Na6 b8B Ne7 g8Q Rh4 Bg2 f1N+ Ke1 d2+ Kf2 d3 Qh7 Bf5 c8N Ne3 Be8 Nc6 Nc3 Qc7 Ba7 Nd8 Bd7 Bc5 Qf1 d1B Nb6 d2 Nge2 Bd4 Rb1 a1B Nc4 Be4 Nb2 Ka3 b4 Ba4 b5 Nb4 b6 Nbc2 Rg1 h1Q b7 h2 b8B Bc5 Qe7 Bh7 Bb6 Rb4 Nd3+ Bb2 Bgh3 Ng2+ Qe3 Kb3 Ne1 Ka3 Bhg4 Kb3 Nb5+ Ka2 Bdf5 Bbd4 Ba5 Bb6 Bb2 Bdc5 Bd4 Ba7 Rc1 Bcb6 Nbc3+ Kb2 Qf4 Bc5 Rd1 Bab6 Nc1 Ba7 Kg3 f2 Kf3 Bab6 Qe4 Ba7 Qfe2 f1Q+ Bf2 Bd4 Bb6 Be3 Qb5 Qfc4 Qa6 Qg8 Qf1 Qe6 Ke2 Bd4 Bh4 Bf2 Be7 Nh4 Rg3 Ng2 Bf8 Qg1 Be7 h1Q Bec5 Qh4 Bg6 Qcc8 Bbd6 Qc7 Nb3 Qgh1 Ra1 Qg1 Nc1 Qgh1 Ra3 Qa2 Rh3 Qhe7 Rh6 Qee6 Nd5 Qh4 Rg3 Bg1 Nc3 Bb8 Bd4 Qc5 Qe3 Na1 Ba5 Qc7 Bb1 Ba7 Qe4 Nc2 Be3 Bd4 Bb6 Bc5 Bef4 Bcd4 Bdc5 Bdf2 Bfd6
r3n2B/R2Q1b2/1qq2N2/1bk2qb1/n2B2B1/5RKB/B1p2nNQ/1rq1b1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 b4 c5 e4 a5 d4 f5 g5 h5 g6 c3 g7 c4 d5 h3 b6 c2 b5 a4 b7 h4 b6 f3 e5+ Kc5 d6 h2 d7 a3 e6 c3 e7 h3 e8B f4 Bb5 a2 Ne2 Nf6 g8B Bh6 Bb3 Na6 b8B Bg5 b7 Qb6 d8Q Be6 Na3 Bf7 Rf1 h1Q Ba7 h2 Bb2 c1Q b8N c2 Bed7 Ne8 Bh3 Rh6 Q1d7 Rg6 Rb1 a1B Bh8 Bc3 Ng1 Re6 Nc4 Re1 Ba2 Rd1 Re1 Bd2 Re3 Be1+ Kf1 f2 Q8c7+ Qc6 Ra1 h1N Rf3 Rd6 Kg2 f1B+ Kh2 Nf2 Ne3 Rd1 Ng2 Be2 Bd3 Bf1 Bdf5 Bb5 Rg3 f3 Bfg4 Nh1 Qf4 f2 Rf3 f1Q Qfc7 Nf2 Kg3 Kb4 Qe5 Nc5 Qec7 Na4 Qe5 Qa5 Bd4 Qab6 Rf6 Bfc4 Bb3 Nd3+ Kh2 Qe3 Qh7 Nc3 Ra7 Rb1 Nd7 Na4 Ba2 Qc1 Rf5 Qff3 Nf6 Nf2 Qd7 Bf7 Qec7 Qd3 Rf3 Qf5 Kg3 Bgd2 Kh4 Bh6 Qh2 Be3 Bc3+ Kc5 Kg3 Bg5 Bd4+
4NQ1q/1rN1N2b/K2b1B1r/RR4r1/1qN2Qb1/1BN1q1pk/5r1b/2Bn1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 e4 Kh4 b4 d5+ Kb3 f5 Ka4 g5 c4 a5 c5 g3 b6 g4 Kb5 f3 e5 d3 h3 d4 b7 d2 e6 a4 e7 a3 e8N g2 c6 f2 c7 d3 Nc3 f4 Ra2 f3 Nd5 g3 Qc2 d1Q Bf4 d2 Ng7 Ra5+ Kb6 Bg4 b5 Qg5 c8Q Nc6 b8N Nce7 Qa4 Qb1 Rb2 d1R Nc3 a2 Bc4 f1B Bc1 a1Q Bb3 f2 Qf4 Nf6 Na6 Rd7 Ne8 Nf5 Nac7 Ne3 Kb7 Qe5 b6 Bd6 Qb8 Ne4 Nf3+ Kh5 h4 g1B Qa8 Rh6 Nd2 Bd3 Nc4 f1R Ra2 Rc5 Ka6 Nd1 b7 Nd2 b8N Rf2 Nc6 Qe3 Ra5 Rg5 Ne7 Bh2 Qaf3 Qbb2 Qf8 Be4 Q3f4 Bh7 Re1 Nf1 Re2 Qd3 Re5 Qba3 Rb5 Qb4 Na8 Rb7 Nac7 Bd7 Qd2 Kg4 h5 Kh3 Qdf4 Rf6 h6 Qe3 Ba3 Bg4 Bc1 Bd3 h7 Rh6 h8B Bh7 Na4 Qg7 Nc3 Qg8 Bd4 Qh8 Bf6
qRN2BQK/3B1bQ1/k7/1n1n1nBR/1R2rq2/p3b3/NR1Rq3/2qbb2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 Kd7 b4 Kc7 h4 Kb6 c4 a5 e5 f5 h5 a4 e6 f3 e7 f4 e8R f2 h6 f3 h7 g3 Re4 g2 Rh5 g4 Nc3 g3 Nge2 g1Q Bg5 a3 Bh3 f1N Na2 f2 Bd7 g2 Nec3 Ne7 Qg4 Ne3 Rd1 Nbc6 Rd2 N3f5 c5+ Kb7 b6 f1Q+ Ree2 Ka6 b7 Qf4 b8R Na7 c6 Nb5 c7 Qc1 Na4 g1B Nb6 Be3 Rg2 Bb7 c8Q Bh6 Qg3 Bf2 Rb2 Be1 Rgd2 Ra7 Qc4 Bc6 Rb7 Qa8 Rb8 Re8 h8B Rc7 Bg7 Rh8 Be6 Be8 Bf8 Bf7 Nc8 Rc6 Bd7 Re6 Qc7 Re4 Qe5 Qd1 Qg7 Qe2+ Kc2 d3+ Kb3 Be8 Qg2 d4 Kc4 Nd5 Rb7 Nbc7 Kc5 Bf7 b5+ Ka5 b6 Ka6 Rb8 Nb5 b7 Rh7 Rdc2 d2 Qg1 d1B Rd2 d3 Qg8 Re8 Qd4 Nb6 Qdg7 Re4 Kc6 Nbd6 Kc7 Nb5+ Kd8 Nd5 Bc5 Be6 Ke8 Bf7+ Kf8 Qc7 Bh4 Be3 Bg5 Qf4 Q8h8 Bg6 Kg8 Rh6 Bf8 Rh7 Rdc2 d2 Rb4 Rh6 Qhh7 Be8 Kh8 Bf7 Rcb2 Ba4 Qg8 d1Q Rd2 Qc1 Rbb2 Bd1 Qg7 Rd6 Qhg8 Rg6 Bh6 Rg1 Bg5 Rf1 Na7 Ka5 Rc8 Re8 b8R Re4 Rc4 Rh1 Nc8 Ka6 Rcb4
3Qq1r1/1Kn3B1/3N3b/bBk1qR2/q2Q2Np/bb1nr1NB/1B3q2/R4B1r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 Ke7 c4 Kd6 f5 h3 g5 h4 g6 a4 f6 a3 g7 a2 b6 e3+ Kd3 e2 Ke4 e1Q+ Qe2 h2 b7 d3 f7 d2 b5 d1Q b6 Qd5+ Kf5 Na6 b8Q+ Nc7 b7 Kc5 Qd2 Nf6 g8B Ng4 Nc3 Bh6 Bb2 Qe8 Nge2 Nf2 Nb5 Ra3 Ng3 Nd3 Nd6 e4+ Kf6 e3 f8B e2 Bg7 Qdh5 Be6 Rb3 Beh3 Rg8 Qa8 Rc3 b8N Qf2+ Qf4 e1B Nc6 Bb7 Ne5 Bd5 Ng4 Rb3 Rg1 h1R Qd8 Ba5 Rg2 Qfe3 Re2 Qf2 Re5 Ra3 Rf5 Rc3 Rc1 a1B Qe3+ Kc6 c5 Bb3 Nh2 Qhe2 Qd4 Q2e4 Ng4 Qef4 Ba3 Bb2 Ra1 Bc1 Bb2 Q4e3 Nc8 Kb5 c6+ d5 Qa4+ Kc5 Nd6 Ne5 Bb5 d4 Bhf1 d3 Qe4 d2 Qf4 Na6 c7 d1Q c8B Nc7 Be6 Qe4 Qd2 Re3 Bed7 Qh5 Ke7 Qd5 Be6 Nd3 Kd7 Qe8+ Kc8 Qe5 Kb7 Qc2 Bd5 Qc4 Bdg2 Qd4 Bh3 Qa4 Bc3 Ba3 Bb2 Re1 Qf4 Re3 Qd4+
n1n1b2K/n4BrB/1q1N2Qq/2nkQ1b1/B3rrp1/BR2R2b/NN4b1/3B4 b - - 0 1 illegal: No possible last move
3n1Q2/r4bR1/1Q4nn/4NQRN/rB1pK2n/b2QQ3/1b3bB1/2q1qrkB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d3 b4 Ke7 e4 Kd6 h4 Ke5 c4 Kd4 e5 g5 h5 d5 c5 a5 b6 f5 e6 g3+ Kf3 g2 h6 g4+ Kf2 g3+ Kf3 d2 c6 a4 c7 a3 b7 a2 b5 Qh4 h7 Ra7 b6 Ba3 e7 Be6 e8Q Nc6 b8Q Nge7 c8B Bf7 Qe1 d1N b7 Ne3 Bd2 Ng4 Nh3 g1N+ Kg2 Nf3 Qd1 Qh6 Bb4+ Ke3 Nd2 Qe6 Rb1 a1B Bc3 B1b2 Rg1 Rg8 Qa8 Nh6 b8Q Rg4 h8Q Nd8 Bb7 Qe5 Qhf8 Nh4+ Kh1 f3 Nf4 Kf2 Nh5 f4 Nc4 Qe3 Qb5 Qe6 Qd3 g2+ Kh2 Qc6 Qc8 Qc5 Ne5 Qe3 Re1 Qc1 Re3 Qe1 Qcf5 Qc1 Qb6 Qe1 Rh1 g1B+ Kh3 Bh2 Qac8 Bg3 Qcc5 Qc1 Rh2+ Kg1 Ba5 f2 Rg2+ Kh1 Re2 f3 Qce3 Ra4 Bb4 d4 Rc2 Be6 Rc7 Neg6 Rg7 Bf7 Be2 f1Q Ba8 f2 Bef3 Ng8 Kg4 Qfe1 Rg1+ Kh2 Bh1 f1R Kg5 Bf2 Kg4 Nh8 Kf4 Nh6 Baf3 N8g6+ Ke4 Ra8 Rg3 R8a7 Bfg2 Kg1 Rg5
1RqN4/KRbQ4/5kb1/2Rq2pq/3nRR2/n1r1Bbr1/4B1Nn/b3BnQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 d5 h4 a5 e4 g5 c4 f5 e5 f3 h5 f4 c5 a4 e6 a3 b6 d3 c6 d2 c7 a2 b5 d4 b7 d3 b6 Nf6 h6 Nd5 h7 Nb4 Na3 N8c6 b8R Qd5 b7 Nc2 Nh3 N6d4 Nb5 Ra3 Nd6 Rc3 Be2 Kf6 e7 Bf5 e8R Bg6 c8Q Na3 Nf7 Bd6 Re4 Bc7 Qg1 d1Q Qd7 d2 Nd8 Qc2 Rh2 d1B Be3 Rf8 Rb1 a1B h8R Qc1 Rh4 g3+ Kf1 g2+ Kf2 Re8 Rb5 Re6 Rc5 Ra6 Ra8 Ra7 b8B Rb7 Ba7 Rbb3 Rb8 Qc2 Re8 Qcf5 Re4 Qfe6 Bb6 Qg4 Ba5 Qh5 Ke1 f2+ Kd2 f3 Nf4 f1Q R2h3 f2 Rf3 Qg4 Rh7 Qh5 Bb4 Rc1 Bc3 Qe1+ Kd3 f1N Qf2 g1N Ng2+ Bf5 Rf4 Nf3 Rg7 N3h2 Qg1 Qeh4 Rh7 Qh3 Re7 Rb2 Be1 Rc4 Rh4 Bg6 Rf4+ Qhf5 Bg4 Rf2 Be2 Rf3 Rg7 Rc2 Rh7 Rg3 Re7 Rb2 Kc3 Rc2+ Kb4 Rc3 Rg7 Be5 Ka5 Bd6 Ka6 Bc7 Bd3 Bf3 Ka7 Ne6 Be2 Nd4 Qb5 Be5 Rgb7 Bc7 Rh4 Qc8 Qd7 Bb2 Rhg4 Ba1 Rgf4+
4q1QB/2b1R1NQ/R1RRrqnp/2rQ2N1/3b1q2/KRb1qB1r/4b1k1/7n b - - 0 1 illegal: No possible last move, all moves rejected
1qN2K2/B1Q1nQ1R/rBbRpnq1/b1rNB2r/r1k5/5Rn1/4B3/1b3nB1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Ke6 b4 Kd5 f4 h5 c4+ Ke6 c5 Kd5 b6 a5 c6 e3 Kd3 d6 c7 e2 f5 e1Q f6 h3 b5 a4 b7 a3 b6 h4 f7 a2 g5 h2 g6 h3 g7 Ra6 Qc2 Rh5 Be3 Nd7 b8B Ndf6 b7 Qg3 Nd2 Qg6+ Ne4 Bf5 c8R e6 Be2 Ne7 Rf1 a1R g8Q R1a4 Rc6 Qe8 Bc7 Qb8 Bb6 Bh6 Bf2 Bd2 f8B Ba5 Qc1 Bg4 Qf7 Bf5 Kc2 d3+ Kb3 d2 Bg7 d1N Bfd4 Rh4 Rf3 Ne3 Bh8 Rh5 Qc3 Qe8 b8B Nf1 B8a7 Qb8 Be3 Ng4 Be5 Nf6 Nc5 Bb1 Nb7 Ke4 Bec5 d5 Rd6 d4 Qc2+ d3 Qc1 Ra1 Kc4 d2 Bf2 d1R Kc5 Ra4 Be3 Neg8 Kc6 Rd5 Qc5 Nh7 Kd7 Ne7 Qc7 Rc5 Bf2 Nc8 Ke8 Nf6+ Kf8 Ne7+ Rd8 Rh4 Be3 Rh5 Nd6+ Kd5 Bf2 Bd3 Nc8+ Kc4 Bd1 Bb1 Rd6 Nd2 Ne2 Nf1 Rg1 h1N Nf4 h2 Nd5 Nhg3 Be2+ Qd3 Rg2 h1B Rh2 Bg2 Bd1 Qg6 Bg1 Rg5 Rh7 Rh5 Rd3 Be4 Be2 Bg2 Nc3 Bb7 Nd5 Bc6 Rf3+
1B4rn/1BB1R1n1/2p5/1kRr3Q/R7/2B1NKbr/qBqq1Q2/1bbrN1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 b4 h5 d4 a5 g4 f5 e4 a4 e5 c3 d5 f3 d6 c2 b6 Kc6 d7 a3 b7 f4 e6 a2 e7 h3 e8Q h2 g5 h4 g6 h3 g7 Ne7 g8R Na6 b8B Ng6 Qe7 Nc5 Nc3 Ne6 Bb2 c1B Rg7 Rh5 Bg2 Nh8 Qf6 Bd6 Re7 Ng7 b5+ Kc5 Rb1 a1Q Nd5 c6 Bc7 Rb8 Ke1 f2+ Ke2 f1R b6 Qa5 Ra1 f3+ Kd3 f2 Ke2 Qa3 b7 Bg3 Ne3 Qb3 Ra4 Qa2 Qf7 Rg5 Qd2 Rd1 Nf3 Rf5 Rf1 h1R Ne1 h2 Bh3 Kb5 Qh5 Rc5 Bce5 Qa5 d8B Bf5 Bdc7 Bb1 Bf6 Rg8 b8B Rd5 Bc8 Qc3 Bb7 Qc2 Ree4 Rg1 Red4 h1Q Rdc4 Qh2 Bfc3 Qg2 Re4 Rh1 Re7 Rh2 Rh1 Qg1 Kf3 f1Q+ Qf2 Rh4 Rh3 Qfd3 Rh2 Qdd2 Rg2 Be5 Rgg4 Bg3 Rgc4 Rh3 Rc5+
3N1BKn/R7/BqpB1Q2/1qN1r3/b1nbn3/1Qk1bNB1/r1q5/R1qb2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 f5 d4 h5 e4 a5 g5 a4 d5 f3 g6 f4 b6 a3 b7 h3 b3 c3 g7 c6 d6 h2 Ra2 h4 d7 f2 Ke6 h3 Kf7 f3 e5 c2 e6 Bc5 e7 Rh5 e8Q Ne7 g8N Ng6 Qd6 Qb6 Nh6 Nh8+ Kg8 Rf5 d8B Nd7 Bf6 Ne5 b8B Ra4 Bb5 f1Q Nd2 f2 Be7 Be6+ Nf7 Qe2 Qdd8 f1Q Ne4 Bc4 Bf4 c1B Qd1 Qc2 Bf8 Be3 Qed8 Qfd3 Bbd6 Be6 Rb2 a2 Qf6 a1Q Ra2 Qab2 Ra1 Ra2 Qb1 Qbc1 Ba6 Qdb5 Bg3 Bd5 Nf3 Rh5 Nf2 Rf5 Nd3+ Kc3 Nd2 Bcd4 Nc5 Be6 Bf2 Bc4 Rg1 h1N Rg7 h2 Bg1 Ng3 Nf3 Ne4 Rh7 Nd7 Bg3 Rd5 Nd8 Ne5 Ra7 h1B Nd2 Nef7 Bgd6 Bf3 Bg3 Bd1 Nf3 Q5a5 Bgd6 Bb5 Bg3 Qb8 Bgd6 Ne5 b4 Ba4 b5 Nc4 Bg3 Q2d2 b6 Qdc2 b7 Qb5 Bgd6 Rh5 Bg3 Qc7 b8B Qcb6 Bbd6 Re5 Qb3+
1bQ2RK1/2n5/1qN1BQBB/b3bBb1/1B1nr1r1/N3pN2/bn6/1b1knR2 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 b5 c4 e5 a4 g5 h4 e3 f4 e2 h5 e1B h6 g3 h7 e4 c6 e3 c7 b3 c5 b2 a5 g2 a6 g4 c6 b4 a7 b3 Rh6 g3 Ra6 Be7 Nf3 Kg4 f5 g1B f6 g2 f7 Nf6+ Ke5 d5 f8B d4 Bd2 d3 Ra3 Ne8 Ba5 d2 Rh3 Bh2+ Ke4 g1B Bb5 Be6 c8Q Nc7 Bh6 Re8 h8N Bg5 Bd3 Be5 Ng6 Bgh2 Ra1 Rg8 Qc1 d1N Na3 b1B Qc3 b2 Bb4 Bd2 Rh4+ Kg3 Bc2 Kf2 Rf4 Ke2 Ne7 Bea2 Kf5 Qd4 Be4 Qb6 Qd4 Re8 Kg6 Bg3 Kh7 Bc3 Bc5 Ba5 Bf5 Bef6 Qb4 Bc2 Ng6 Nd5 c7 b1N Qb2 Bb4 Nd2 Nc6 Ne5 Bh8 Qc3 Nb2 Bg6 Bhf6 Ne4 Nd2 Raf1 Nf3 Nd2 Ne1 Ndf3 Kd1 Bd6 Bh8 Rf8 Bcb1 Kg8 Bh2 Qd7 Rac8 a8B Ba5 Bb4 Rcd8 c8B Bhf6 Nf7 Bb8 N7e5 Bg7 Qg4 Nc7+ Qe6 Rd4 Qf7 Rg4 Bcf5 Nd4 Bd5 Ncb5 Qc8 Nc7 Nc6 Ree4 Bde6 Be5 Qf6
1rr2B2/1Br3Bb/1Qpn1n1K/bnq5/1rRr1N2/1N3krB/7R/2nNB2Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 e4 a5 b4 h5 d3 f5 g5 h3 b6 c6 g6 h4 b5 h2 g7 a4 b7 a3 b6 a2 Nh3 c3 Bb2 Qd6 Ng1 h3 Nd2 Nf6 g8B Qc5 Nb3 Na6 b8B+ Nc7 Rc1 a1R b7 R1a4 Be6 Rd4 Ne2 c2 Nc3 Bd7 Ba7 Rc8 b8B Bd6 Qe1 Nb5 Nd1 Bc7 Bb6 Be8 Ba5 Bg6 Ba7 Rb8 Bc8 Bh7 Bb7 Rhc8 Qe3 Bb6 Be1 Ba5 Bbc3 Rc7 Bb6 Rcc8 Bd8 Rc7 Be7 Rcc8 Bf8 Rc7 Rg1 h1N Rg2 Ng3 Rh2 Rcc8 Qg1 Rc7 Qh1 Rcc8 Ra1 c1N Ra4 Rc7 Rc4 Rbc8 Kf2 f3 Ke3 f2 Bg2 f1R Bb2 Ke6 e5 Nge4 Ba1 Kd5 e6 Rb8 e7 Rg1 e8Q f4+ Kf3 Ned6 Qd8 Rcc8 Bf1 Rg7 Qb6 Rgc7 Bac3 Nd7 Kg4+ f3+ Kh5 Nf6+ Kh6 Ke5 Rb4 Kf4 Rc4 f2 Bg2 f1R Ba1 Re4 d4 Rg1 d5 Rd4 Bf1 Rg3 Bg2 Nde4 d6 Kg4 d7 Ned6 d8N Kf4 Bf1 Kg4 Rg2 h2 Ne6 Kf3 Bb2 Ke4 Nf4 Kf3 Qg1 h1R+ Rh2 Rgg7 Bh3 Rg3 Rhc2 Rh2 Bbc3 Rhd2 Bb2 Re4 Be5 Rdd4 Rh2 Nd7 Beg7 Nf6 Rcc2 Rb4 Rc4 Rd4 Qh1+
1r1Nb1N1/2BnnpR1/1BBb1Q1n/K5R1/bB2b2r/Bb1q1n1Q/2bk2N1/8 b - - 0 1 illegal: No proof kernel
N1k2Br1/3RqB1N/1B5Q/b5pn/3Kp2r/Rq3qb1/bn4B1/BQ1Nrn2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 d5 c4 Kd7 f4 e5 b4 a4 h5 d3+ Ke3 g6 c5 g3 f5 a3 f6 g2 f7 a2 b6 d2 h6 Nf6 h7 Nh5 b5 Qe7 b7 Na6 b8Q Nb4 b6 Nd3 b7 Nb2 Nh3 g1R Bg2 Re1+ Qe2 d1Q c6+ Kd8 Ng5 Qb3+ Nc3 Rg8 h8B Ra4 Nh7 g5 c7+ Kd7 Rb1 a1Q Rh3 Qaa3 Rf3 Bg7 f8B Rb4 Rf7 Bf6 Ra1 d4+ Kd2 d3 Ke3 Qa8 Ra3 Rd4 Nd1 d2+ Kf2 Rb4 Qa6 e3+ Kf3 Bg7 Qh6 e2+ Kf2 Bf6 Rg7 Rh4 Rf7 Qa2 Ke3 e4 Rg7 Be5 Rf7 Bg3 Kd4 Qb3 Be5 Nc4 Bb2 Qaa4 Ba1 Qf3 Bf4 Qab3 Be3 Bd6 Bf2 Ne3 Rg7 Nf1 Be3 Kc6 Bf2 Bd7 c8B Be6 Bg1 Bc4 Be6 Bg3 Bf7+ Kd7 Qe8+ Kc7 b8N Kb7 Qb5+ Kc8 Na6 Be6 Nc7 Bc4 Nc3 d1N Na8 Nb2 Nd1 Qc2 Qd6 Ba2 Qh6 Qcb3 Qd3 Bc7 Be3 Ba5 Qb1 Qbb4+ Bc4 Qc7 Kd5 Qb3 Bb6 Qd8+ Rd7 Qe7 Nf2 Rc1 Kd4 e1B Ng4 Bf2+ Ne3 Bg3 Bf7 Re1 Nd1
3QNR1k/2R2rnb/1R2B1pR/2N2qN1/nK5b/2n3rr/Rp1bq3/3qB1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
b2KRB2/b1nQ4/2qBRp2/2QqrrRp/n1B5/6B1/2r1B1n1/bN1k2Nq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 Kf5 Kc4 g4 h5 b4 d5+ Ke5 a5 e4+ d3 c3 d4 g5 h3 b6 f3 b7 h2 b5 a4 b6 a3 g6 f6+ Kf4 f2 g7 a2 e5 Ra5 e6 Qc7+ Ke4 Nd7 b8B Nc5+ Kf5 Bb7 e7 Na4+ Ke6 Re5+ Kf7 Qc6 e8R Bc5 Bg5 Ne7 g8B Nd5 Bd6 Nc7 Bh6 Ba8 b7 Ba7 Be2 f1R b8B Rff5 Qd2 Kb3 c4 Rh7+ Bg7 Rh8 c5 Rh7 Qg5 Kc2 Kf8 d2 Bgc4 d1Q Qe3 Qf3 c6 d3 Qc5 d2 Re6 Rh8+ Ke7 Rc8 Bf8 Qd5 Kd7 Qc1 Re8 d1N Re6 Nb5 c7 Ne3 Re8 Ng2 Re6 Re8 c8Q Nc7 Qb7 Re7+ Kd8 Rg7 Qbb5 Rg3 Qd7 Rc3 Na3+ Kd2 Rb1 a1B Rb5 Rc2 Re8 Qb2 Nb1+ Kc1 Ra5 Qbb7 Ra6 Re6 Bg3 Ree5 Rd6 Qbc6 Rde6 Nb5 Bbd6 Nc7 Nh3+ Qd1 Rf1 h1Q Rf4 Qdd5 Rg4 Qb7 Rg5 Qbc6 Bed3 Kd1 Ng1 Qf3 Bf1 Qfd5 Bfe2+
4N1r1/1n3p2/RnKN1b1r/p2B1NQ1/5b1r/1b2N1qk/1qQN2R1/q1B1n2Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Ke6 h4 Kf5 b4 a5 h5 g5 h6 d5 c5 d3 c6 d4 b6 g3+ Kf3 g2 Bd2 Be6 c7 Bg7 c8N Na6 h7 Qd6 b5 Bb3 b7 Ne7 b8N Nd5 b6 Nc5 Nh3 g1B b7 Be3 Nf2 Qc7 Rh6 g4+ Kg2 g3 Kf3 g2 Ng4 g1R Ra6 Nb6 Nc6 Bf6 b8Q Nb7 Bg2 Rh1 Ra2 Qd6 Qc7 Rh4 Qh1 Kg5 Ke4 f3 Bc1 f2 N6e7 f1N Qc3 d2 Nf5 Nh2 Rb2 Nf3 Qd3 Qg3 Ncd6 Raf8 Qc4 Bf4 Qc3 Rfg8 Qd3 Nc4 Kd5 Be7 e4 Ne1 Kc6 Nb6 Nge3 d1Q Bd2 Qh5 Bc1 Bd8 Bf3 Qhg4 Rg2 Qf2 Qe2 Qgg3 Qc4 Qa2 Qc2 Qa3 e5 Be7 e6 d3 Qb2 Bf6 e7 Qa2 Qc3 Qb2 Be4 Kh5 e8N Kg5 Bd5 d2 Qc2 d1Q Nd2 Qa1 Bb2 Qdb1 Bc1 Qbb2 Rg1 Rg6 Rg2 Rhg8 Ne7 Rgh6 h8Q Bc3 Qf6+ Kh5 Nec4 Kg4 Nef5 Bd4 Qf1 Kh3 Nce3 Bde5 Qg5 Bf6 Qh1+
BqqBRQ2/Rb1p2r1/R2rn1qB/1n2b3/2kB4/1BrN2p1/1b5Q/1KNn4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Ke6 Kc2 f5 b4 a5 h4 g5 e4 g3 c5 d3+ Kb2 g4 e5 Kd5 c6 d2 c7 a4 e6 g2 b6 f3 h5 f2 b5 a3+ Ka2 f4 b7 f3 e7 Na6 b8B Rh7 e8R Bd6 h6 Nf6 b6 Nh5 b7 Ng7 Qc2 d1N Nd2 Be5 Kb1 Ne6 Nc4 Rg7 Ne2 g1Q h7 g3 Bh3 f1Q h8B Qa7 Nb2 f2 Bh6 Qe1 Nc1 f1R Qh2 Qe4+ Nbd3 Qg6 Bg4 Rf6 Bf3+ Kc4 Bd5+ Kd4 Bb3 a2+ Kc2 Rf3 Rf1 Re3 Rf6 Qb6 Ba7 Rf3 b8Q Bb7 c8B Nac7 Ba4 Nb5 Bb3 Ba6 Bb7 Qc8+ Qc7 Rb8 Ba8 Rb7 Bb8 Qa7 Qc6 Rb6 Bc7 Qab8 Bd8 Bb7 Qc7 Rd6 Qc6 Nc5 Rfe6 Re3 Qch1 Rf3 Qf1 Re3 Qf8 Rf3 Rb1 a1B Rf6 Bc3 Ra1 Ne6 Kb1 Bb2 Ra5 Rf2 Ra7 Rc2 Rf2 Rc3 Re2 Ba1 Rea2 Bb2 R2a6 Rh7 Ba4 Kc4 Bhf6 Rg7 Bc2 Bf4 Bd4 Be5 Bb3+
r2kNqN1/1B5r/N2Q1R2/K1nNrR1Q/4R2n/1p2Bbb1/1pn5/bnn1N3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 f5 Kd2 c5 a4 h5 e4 b5 g4 c4 a5 h3 e5 f3 g5 c3+ Kd3 h2 g6 f2 d6 c2 e6 b3 Kc3 f4 Kb4 h4 a6 f3 a7 h3 d5 Ne7 g7 Rh7 g8Q Nd7 Ra4 Nc5 Qd3 Bb7 Qg4 Ng6 e7 Nh4 Be3 c1B Bg2 f1N Nc3 f2 Nf3 Bb2 Ne1 Nd2 Rf1 h1R Qh5+ Kd7 e8N h2 Qd4 Ba1 Qf6 Qc8 Ka5 b2 Re4 b4 Qfh6 Kd8 d7 b3 Qd6 Nb1 Bf3 Rb8 a8N Bg7 Bg2 Be5 Nac7 Ra8+ Na6 Bg3 Bd4 Rg1 Qf8 h1N Re3 Qc6 Nc2 Qf6 Qfh6 Bd6 Ne1 Ng3 Be4 Ke7 d8R Bf4 d6+ Ke6 d7 Ke7 Rf3 Ne2 Re3 Bc8 Bb7+ Be5 Qf4 Qf8 Re4 Nc1 Qfh6 Rg5 Q6g6 Na3 Be3 Nc2 Ng7 Qf7 Rf8 Qe8 d8N Bg4 Rff4 Qf8 Nc6+ Kd7 Ne7 Kd8 Rf3 Bg3 Ne8 Re5 Rf7 Bd1 Ncd5 Be2 Ng8 Bd1 Rg1 f1N Rf3 Nd2 Rgf1 Nb1 Qd6+ Rd7 Rf6 Bg4 Qe6 Rh7 R1f5 Bf3 Qd6+
R6K/2n1q1B1/3rB1B1/1n2k1p1/N2NB1Q1/1Nnb1BR1/Qr1r1brp/5br1 b - - 0 1 illegal: No proof kernel
QNq1b3/NB1pb1BK/1rQ5/1r2nr2/1Q2R1rn/p4Q1b/R5Br/2Q2nk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 c4 Kg4 b4 Kg3 Kf5 Kf2 g4 a5 e4 h5 g5 h3 g6 a4 b6 a3 b5 f3 e5 h4 b7 h2 b6 d3 c5 d2 g7 h3 e6 Ra6 e7 Nc6 e8Q Rh4 b8Q Rg4 b7 Rb6 Ne2 Be7 Qa8 Ne5 b8Q Ba6 c6 Qc8 c7 f6 Rg1 h1R Ra2 h2 Qf7 Bc4 Qf8 Bf7 Nd4 Be8 Bb2 Rb5 Qda4 d1R Nc3 Rb1 Bg2 Rb6 Re1 Rf1 Qd1 h1R Ncb5 Kg1 Nc6 f2 Qc1 Rh2 Bc3 Rb2 Nba7 R2b5 Qbb7 Rc4 Re4 Nh6+ Kf4 f5 g8B Ra4 Nb8 Rab4 Qf6 Rc4 Kg5 f4 Bd4 f3 Bd5 Nf5 Bb2 Nh4 Kh6 Rcb4 Kh7 Rc4 Re2 Rg4 Re4 Re1 Qd6 f1B Qb4 f2 Qbc6 Re3 Qf6 Rc3 Bb7 Rf3 Qfc6 Rf8 Qd1 Rf5 Qf3 Nd3 Bg7 Ne5 Bh1 Bh3 Bg2 f1N Qc1 Qd8 c8Q Qc7 Qc6 Qd8 Q8c7 Qc8 Qc1 Nf7 Qcd6 Ne5 Qdc6
4NR1b/1r1BQqQ1/b1k1B3/qn2K1B1/B2r2Rr/R2Nnp1B/1b2p2r/1r6 b - - 0 1 illegal: No proof kernel
2NK2bq/n2R2N1/2N2rR1/n2RnQNb/Br3Q2/1pBp4/nN1bq2n/7k b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 b5 c4 d5 a4 h5 g4 h3 g5 h4 a5 h2 f6 d3 g6 b3 g7 d2 f7 h3 a6 b2 f5 d4 a7 b4 f6 e5+ Kb5 b3 c5 d3 c6 Rh4 c7 Be6 Kb6 Ne7 g8N Nc8+ Kb7 Bb4 f8R Nc6 f7 Qe7 Qc2 d1B Nf3 Bd2 Na3 b1N Rd8 Nc3 f8Q Na2 Rg1 h1N Bb2 h2 Qc5 Nf2 Rg6 h1Q Bh3 Ng4 Rd5 Nh2 Nc4 Be2 Bc3 Na5+ Ka6 Rh6 Nb2 Rb8 a8N Na7 c8N Rb4 Nc7 Qe8 Nge7 Bg8 Rg1 Bd1 Rgd6 Rf6 Rg6 Kf4 Qf2 e4 Bd7 e3 Nc6 e2 Ne6+ Ke4 Qg3 e1N Ng7 Qf1 Qg5 Qe2 Qf5+ Ke3 Qf7 Kf2 Ng5+ Kg2 Qf4 Qd8 Be8 Kh1 Rd7 Nef3 Qe6 Qe7 Qee4 Qe5 Qef5 Rc4 Kb6 Rb4+ Rb5 Qd4+ Kc7 Ne5 Rc5 Bc1 Kd8 Bd2 Qg3 Qh4 Qgf4 Qh8 Rb5 Qe4 Rc5 Bh5 Rcd5 Qe2 N6e7 Be6 R7d6 Qh7 Ba4 Bg8 Rd7 Qh8 Nc6
1KNq1k2/5N1Q/1Qbn1bBn/6BR/q4p1B/1qB1b1rp/1N1b3r/2R3Bb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 h5 g4 a5 d4 h3 e4 c3 b6 c2 d5 h4 b5 h2 b7 c4 d6 a4 d7+ Ke7 e5 a3 g5 c3 g6 a2 g7 Ra4 e6 Qb6 d8B+ Ke8 e7 Rb4 Qd4 Na6 b8B Nc5 Ba7 Ne4 Na3 Nd6 Bd3 Nf6 g8Q Ng4 Nc4 Rb3 Nb2 Bd7 Nh3 Nh6 Qh7 Bg7 Ng5 Bf6 Nf7 Bc6+ Be4 Qb7 b6 Qd7 Bd2 c1B b7 c2+ Bc3 Bd2 b8B c1B Qb6 Ra3 Rb1 a1Q Bbc7 Be3 Bcb8 Bcd2 Rbc1 Qe6 Bbc7 Qb3 Bcb8 Kd7 e8N Qaa2 Bbc7 Qa4 Be7 Q2b3 Bcd8 Ke6 Rhg1 Kd7 Rg5 Ke6 Rh5 h1B+ Ke2 f3+ Kd3 f4 Bg6 Bfd4 Bg5 f2 Bde7 Bf6 Bd8 h3 Be7 Ra2 Bh4 Rg8 Bg5 Ne4 Ned6 Kd7 Nc8 Ke8 Nc4 Rc2 Nb2 Nd6 Bh4 Bfd4 Beg5 Bf6 Qa6 Kf8 Bc5 Be1 Qb6 Re2 Bd4 f1Q Bc5 B1d2 Bd4 Qfd1 Bc5 Bf2 Bd4 Bfe1 Bg1 Rh2 Be4 Bf2 Bf5 Ne8 Be4 Bg7 Bd8 Bfe3 Bf5 Bgd4 Bdf6 Rg3 Bfg5 Bf6 Bg6 Qab4 Na4 Qe7 Nb2 Qbc2+ Kc4 Nd6+ Kb4 Qd8 Ka5 Qe4 Ka6 Qb3 Ka7 Qea4+ Kb8
1b2bKBb/2nq2B1/2R1b3/2Q2RQk/1BBp2p1/5Nrb/1nqr4/1BqQ1N2 b - - 0 1 illegal: No possible last move, all moves rejected
RbnRk3/R7/bN1Qq3/p1B1p3/1N1r2q1/rQ1b1RN1/1qb4K/R2Bn2b b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 e5 f4 d5 Kf2 h5 g4 h3 Kg3 d3 f5 d2 b6 d4 b5 h2 b7 e3 g5 d3 b6 e2 f6 Bb4 c5 Ne7 g6 Rh7 c6 Qd5 c7 Qe6 g7 Bd6 Nc3 Na6 b8Q Nc5 Qb3 d1B b7 d2 Nd5 Nd3 Ba3 Bc2 Bc5 d1Q Nb4 e1Q+ Kg2 h4 Ne2 Qc1 Ng3 Qb2 Be2 Qd1 Re1 h1B+ Kh2 h3 g8R+ Kf7 Rg6 Be4 Rg7+ Ke8 Rf1 Bf5 Rf3 Ne1 Rf7 Qdd4 Bd1 Bfd3 Rg7 Qdg4 f7+ Kd7 f8N+ Ke8 Nd7 Ra6 Rgf7 Rc6 Nb6 Rh4 Bf2 Rc3 Bc5 Nd5 Rd7 Ne7 Qd5 Ra3 Qb3 Bf5 Qa7 Bfd3 b8R Qbd4 Rb7 Qb2 Kh1 h2 Qa6 Qd5 Ra7 Qde6 Qb5 Ba6 Qc6 Nc8 Qcd5 Qgg8 Qc6 Rd4 Qcd5 Be7 Qd6 Qgg4 Na8 Nb6 c8R+ Bd8 Rb8 Nc8 Nb6 Bc7 Rba8 Bb8 Rh7 Bb1 Rhg7 Nc2 Kg2 h1B+ Kg1 Ne1 Rgd7 Bbc2 Kh2 Rc4 Na2 Re4 Nb4 Rd4 Rd8#
BR5n/KNnb1B1q/N5pN/p1N1Rq2/1B4b1/1kb1QQr1/r2b3N/4b2r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 b4 Ke6 h4 Kd5 c4+ Ke6 f4 d5 b6 a5 b7 g3 h5 e3+ Kd3 e2 b5 e1B c5 g6 b6 g2 h6 Bf2 h7 Qe8 c6 Kd6 c7 Kc5 f5 Kb4 f6 e5 f7 Bd6 f8N Be3 Rh5 Qf7 Qf3 Bd7 c8B Bd2 Ba3+ Kb3 Nc3 Nh6 Na4 B6b4 Ne6 Bbc3 Bb4 Na6 b8N Nc7 Na6 Rb8 b7 Qg8 Qe3 Nf7 Nf3 g1R Nh2 Rg3 Bg2 Qg7 Be4 Qf6 Ra2 Qf5 Rg5 Rf8 Qf3 Nh8 Rc2 Ra8 b8Q Rd8 Qb6 Re8 Ke2 d3+ Kf2 Re7 Qe3 d4 Rc1 Rb8 Ba8 e4 Rg1 Rb5 Bcb7 Rc5 Bd5+ Rc4 Nb6 Re8 Nc8 Re7 Nd6 Rg7 Qef4 e3+ Kf1 e2+ Kf2 Ka4 Bab7 Nf7 h8N Qg4 Nd8 Bc1 Ba8 d2 Ba3 Ba1 Nf1 d1Q Re5 Bd2 Rh1 Rg8 Rh4 Rg7 Bb4 Rc2 N6b7 Qf5 Qg5 Ra2 Rh6 Nd6 Nhf7 Bac3 Rh8 Rh7 Qgf4 Qdb1 Be6 Qh5 Q4e4 e1B+ Ke2 Rg7 Qe3 Rh7 Rf8 Qe4 Bd5 Qf4 Kd3 Qhh6 Bc4 Qg7 Rg8 Rh1 Nh2 Qh7 Nh6 Nf7 Rge8 Nh8 Bf7 Qf5+ Kc4 Qg8 Kc5 Qh7 Ne6 Kb3 Kb6 d3 Qc6 Bc1 Qg2 d2 Ka7 d1B Rb8 Bg4 Qgf3 Bcd2 Nec5+
1B3RN1/b1r3nB/3kqp2/1b5q/1b1R1R1n/1NrbBn1R/1KQ1bpR1/4Q3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 h5 c4 a5 Kc2 d5 e4 d3+ Kb2 f3 g4 f6 c5 h3 b6 f2 b7 d4 g5 d2 e5 h2 g6 h4 g7 d3 e6 a4 b5 h3 b6 a3+ Kb3 a2 c6 Qe8 c7 Ra7 Na3 Nd7 b8B Ba6 c8R Ne5 b7 Bb5 Rb1 a1B Nc2 Bd4 Rc6 Nf3 Na1 Nh6 g8R Nf5 Qc2 d1Q Rg2 d2 Ne2 N5h4 Rd6 Rh7 Nc3 Ra3+ Kb2 Ba7 Rd3 Qe2 Rd8 d1B Be3 Qh5 Nb3 Qe1 Rd4 Bde2 Rbd1 Rf7 Rf4 Bbd3 Rhg1 h1N Rg3 h2 Rh3 Rh7 Rg2 Ng3 Rd2 Bb5 Rdd4 Bed3 Be2 h1B Bf1 Ngf5 Nd5+ Ke8 e7 Kd7 e8R Bb4 Rf8 Ng7 Ne7+ Ke6 Ng8 Qe2 Na1 Rc3 Nb3 Qe1 Bd6 Kd7 b8Q Ke6 Qd8 Qe2 Qa5 Kd7 Bd2 Qe6 Bb8+ Kc6 Be3 Be2 Rg5 Bed3 Rgg3 Bg2 Be2 Bf1 Bd1 Bfe2 Rg2 Ngf5 Qa1 Rc7 Qac1 Ng7 Q1d2 Bac5 Qe1 Bb6 Qb1 Ba7 Bc2 Bdc4 Bh7 Bcd3 Rc4+ Kd7 Qc2 Kd6 Rcd4+
R1N1B3/Nr2b1q1/1Bqprb1N/1Q1br1N1/2nRr2k/2B1NK2/1pr3n1/7Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 g4 Kf6 a4 h5 f4 b5 c4 e5 a5 d6 a6 d3+ Kf3 e4+ Ke3 b3 a7 b4 c5 b2 c6 h3 c7 d2 Nf3 b3 Nh4 h2 Qf3 d1R Ba6 Nd7 Ke2 e3 Bc4 Ne7 Ng2 h4 Qf1 h3 Bb5 Rd5 Nc3 b1R Kf3 e2 Be3 e1B Bb6 Rh4 Ne3 Bb7 c8N Qc7 Ba4 b2 Qb5 Rb8 a8Q Rc1 Ra2 Bd2 Rd1 h1R Ra3 Be1 Rd4 h2 Ra2 Rc2 g5+ Kf7 f6 Kg6 f5+ Kh5 g6 Re4 f7 Rde5 f6 Bh4 g7 Ng6 g8N Be7 f8N Bd5 f7 Re1 Nh6 Bhf6 Qac6 Rb7 Ne6 Kh4 f8B Nf4 Bg7 Ng2 Ng5 h1Q Qb4 Qd8 Nb5 Qh8 Nba7 Qh7 Bh8 Qg7 Qbb5 Ree2 Bd8 Nb6 Bc7 Nc4 Bb6 Na5 Ra3 Rcd2 Qc1 Rc2 Ra2 Nc4 Ra1 Qh2 Qh1 Re6 Bd8 Rg4+ Re4 Be5 Qb6 Qg6 Nb5 Qg8 Nd1 Qe8 Nh7 Nf4 Qa5 B5f6 Bb6 Bg5 Bc3 Bgf6 Qa6 Rg5 Ra2 Rge5 Qa5 Rg2 Ra3 Rg4 Ne3 Kh5 Qb4 Rh4 Ra2 Qg1 Ra1 Qg7 Ng5 Ng2 Qc5 Bc6 Qd5 Qd7 Rd4 Qe8 Bb3 Qd7 Ra8 Qe8 Nba7 Qd7 Qe1 Rhe4 Ba4 Qc7 Qc5 Bd5 Qd1 Kh4 Be8 Qd7 Qb5 Qc6 Qh1+
1r1r2Q1/1b1R1R2/1np4b/3Nb3/BpQq4/1KnrN2b/1bQ1R1Q1/kQ3qB1 b - - 0 1 illegal: No possible last move, all moves rejected
rB2N2q/2nk1Q1n/p5N1/6bb/r1Rn2N1/Qn1K4/RbpRBqR1/4Rn2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 f5 d4 h5 Kd2 c5 g4 h3 e4 f3 d5 f2 g5 f4 d6 c3+ Kd3 h4 b6 f3 b5 h2 b7 h3 e5 c2 e6 Be7 g6 Na6 b8R Nf6 b6 Nc7 g7 a6 b7 Nh7 Nc3 Bg5 e7 Bg4 g8R+ Kd7 e8N Qf6 Nge2 Bh5 Bf4 c1B Ne4 Bb2 Qc1 Qf7 Rg1 h1Q Rc8 h2 b8Q Qf5 Ra2 c4+ Kd2 c3+ Kd3 c2 Qb3 Qc5 Be5 Qa7 Nf4 Qb6 Be2 f1N Rg2 f2 Ng6 Nd2 Qc4 f1N Nf2 Qc5 Ng4 Qf2 Qa1 Nb3 Qf7+ Kc6 Rg7 Rg8 d7 Rf8 Qe7 Rf4 d8R Ra4 Qf8 Nfd2 Rg1 Nf3 Qf7 Nfd4 Rc1 Qhf1 Rd7 h1N Re1 Ng3 Rdd8 Qh1 Qc1 Bc3 Qa3 Nf1 Rd5 Bb2 Bg3 Be7 Bd6 Kd7 Rg8 Ncb5 Rc4 Qhh2 Rg7 Qe5 Rg8 Qh8 Bb8+ Nd6 Ne3 Nf8 Nf4 Nb5 Rg2 Nh7 Ng6 Nc7 Rdd4 Ng5 Ng4 Nh7 Re4 Nf5 Bd1 Nfd4 R4e2 Qg1 Rd2 Qf2 Qg8 Bh4 Be2 Bg5 Qf7+
q4r2/bbK1pr2/b3k1Bn/r2q3Q/QB2r2Q/2p1NQr1/Q1NR4/Rn1B4 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 h5 Kd4 a5 Kd5 c5 g4 h3 f4 c3 b4 e3 d4 c2 f5 c4 b6 h4 f6 c3 g5 e2 g6 e1Q g7 h2 b5 h3 f7 a4 b7 a3 b6 a2 Bd3 Na6 b8Q Qe3 b7 Nh6 g8B Ng4 Bg6 Bh6 f8Q Qd2 Qa7 Rh7 Ba3 c1R Nf3 Rg7 Bb4 Nc5 Na3 Ne4 Ne1 Rf7 Nc4 Be3 Nc2 Nh6 Qh5 Rg1 Qa6 Qd1 b8Q Rg3 Qf4 Nd2 Qfh4 Nb1 Re1 h1R Re2 h2 Rd2 Bf2 N4e3 Re1 Qa3 Ba6 Qa4+ Bb5 Kc5 h1B d5 Qb8 d6 Ke6 d7 Bb7 Kb6 B5a6 d8Q Re2 Rd7 Qd5 Qc7 Bg1 Qcc4 Qa7+ Kc7 Rb8 Nf1 Re4 Nfe3 Qa8 Qce2 Rd8 B8h7 Re8 Qg8 Rf8 Qef3 Qg5 Rd2 Qd5 Ng2 Ba7 Nge3 Rf4 Bd3 Rd4 Bhg6 Re4 Be2 Na3 Rc1 a1R Bd1 Ra2 Ra1 Nb1 Qb3 Ra5 Qa2 Rd8 Qe8 Rb8 Qb5 Rbf8 Qba4
Qn1k3q/1pb4Q/4R3/1bq1Q1RK/Q3rQB1/qr1q2R1/2pb1nNB/2q2N2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 g5 h4 c5 e4 f5 a4 f3 Kg3 f2 d4 c4 d6 c3 d5 b3 a5 b2 d7+ Ke7 h5 Ra6 e5 Nf6 h6 Rh7 e6 Rb6 a6 Rb3 Nd2 b1Q a7 Qa2 a8Q Qa3 Bh3 f1Q Ngf3 Qd3 Rg1 c2 Qe2 Rf7 h7 Bh6 Qe5 Qh8 d8R Bd7 Rg8 Bb5 Nf1 Rg7 Bf4 Ne4+ Kh2 Rg6 Nh4 Nf2 Re1 g3+ Kg2 Rg7 Bg4 Rg6 Rg7+ Kd8 d6 Rf6 d7 Rf8 Bd2 Re8 Bf4 Re7 Re3 Re8 Kf3 g2 Bh2 f4 Rh1 g1B Ng2 Qg8 h8Q Qgh7 Bg3 Bh2 Rg1 Qg8 Qh7 Qh8 Re7 Bf8 Rg7 Bb4 Qa4 Bd2 Qee4 Re7 Rg8+ Re8 e7+ Kc7 Be6 Bb4 Nh4 Na6 Rg2 Nd1 Kg4 Be1 Kh5 g4 Bf2 f3 Bg1 g3 Nd2 f2 Rg5 f1Q Bg4 Qf5 Qf3 Qfc5 Nf1 Bd2 Qf2 Rf8 e8Q Rf4 Qa8 Nb8 Re8 Re4 d8Q+ Kc6 Qd5+ Kb6 Qh6+ Kc7 Re6 Kc8 Qdf5 Kd8 Q2f3 Qce5 Qhh7 Qeb2 Re2 g2 Re3 Bc7 Bh2 g1Q Q3f4 Qc1 Rg3 Qgc5 Q5e5 Nf2 Ng2
Q2QBK2/qp3BB1/r2p1Rbq/nr1q1Q1n/3q1q2/Nn5B/1kBb4/1N4R1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 g4 h5 a4 f3 e4+ d3 e5 f2 g6 b3 c3 b2 e6 h4 g5 h3 e7 h2 e8B Rh5 g7 Bb4 a5 Ra6 Nf3 Nf6 g8B Nc6 Rg1 h1Q Bh3 f1N Ne1 d2 Nc2 Kb3 c4 Qb6 c5 Qa7 Qg4 d1Q Bh7 Qd4 Nca3 Bd2 Qf4 Qhd5+ Qe5 Rh6 g6 Nh5 g7 f6 g8B d6+ Be6 Rg6 Ra2 Rg2 Ra1 Rh2 Kg6 f5 Kf7 f4 Bd3 f3 Kf8 f2 B6f7 Bf5 Qe6 Bg6 Qf5 Rg2 Be4 Rg5 Bd3 Rb6 a6 Na5 c6 Rb5 c7 Rg4 Nc3 b1Q Bb2 Qc1 Ncb1 Rg3 Be4 Rc3 c8Q Rc6 Qd8 Rcb6 Bc3 Rc6 Bb4 Kb2 Bc5 Be3 Bb6 Nd2 Bc2 f1Q Bc5 Qfc4 Rf1 Qf4 Bd4+ Qc3 Bh8 Qcd4 Bg7 Ndb3 Rf3 Bd2 Rf2 Qa8 a7 Ra6 Rf1 Qb8 a8Q Qa7 Rg1 Bh7 Rg6 Qh6 Rf6 Bg6 Nc3 Qf1 Re1 Qff2 Rg1 Qff4 Ncb1
1Q6/pB4r1/2Np1b2/QbR1q2Q/3b1kq1/1N1RQbn1/1QKB1Br1/r3b2n b - - 0 1 illegal: No possible last move, all moves rejected
3N1nBQ/1q1q3b/1b3N2/4N2K/1N2b1QB/1nrp1b1p/1q2Q2R/n1RNrk2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 b4 Ke4 c4 a5 g3 h5+ Kh3 d5+ g4 f5 g5 d3 b6 f3 e3 d4 b7 d2 g6 d3 c5 f4+ Kh2 h3 g7 f2 b5 h4 c6 f3 c7 a4 b6 a3 Bg2 f1Q Qe1 d1B Ra2 Qf2 Qe2 Nh6 g8Q Nd7 b8N Nf5 b7 Nd4 Nc6 Nb3 b8N Bc5 Na6 Nf8 Nab4 Bf5 c8Q Qd7 Nd8 Bh7 Ra1 a2 Nc3+ Ke5 e4 Kd4 e5 Bb6 e6 Ra3 Rb1 a1N e7 Qb7 e8N Qd7 Qe1 Qb2 Nf6 f2 Bg5 f1Q Rc1 Qf3 Qe2 Qfb7 Qge6 Rg8 Bd5 Rg7 Qg8 Re7 Qh8 Re4 Bg8 Re7 Qg2 Bf3 Nd1 Re1 Qe2 Ra5 Qc7 Rc5 Qf4+ Bfe4 Qg3 Rc3 Nf3+ Kc5 Ne5 Kd4 Rf1 Bf3 Qg4+ Bfe4 Kg1 h2+ Kf2 h3 Kg3 h1B Kh4 Bg2 Kh5 Bf3 Qg2 Rc4 Bh4 Rc3 Nf2 Ke3 Rh1 Kd2 Rh2 Ke2 Nd1+ Bf2 Qg3 Kf1 Qf4 Bc5 Qe3 Bb6 Qe2+
1N2K1B1/k2Rn2n/r2bbQ2/1bNq4/2Q2rpp/q2QR1BQ/R2r2n1/2r1Q3 b - - 0 1 illegal: No proof kernel
Q5Qq/1Rb1bNk1/nQK1b3/rN4B1/2NpNn1r/Nn2R3/1q1p2n1/1B2q3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 Kf3 Kf7 e4 h5 b4 d5 g4 a5 c4 d3 e5 d4 g5 a4 g6+ Kg7 e6 h3 e7 h2 e8N+ Kh6 g7 h4 b6 a3 c5 a2 c6 h3 b5 Na6 c7 Be6 c8N Be7 b7 Qb6 b8N Nf6 g8Q Nh5 Na3 Ra7 Rb1 a1B Rb3 Bc3 Nc7 Ba5 Ne2 Rh7 Rg1 h1Q+ Bg2 h2 Nc3 Ra8 Re1 Rh8 Re2 Qe1 Re3 h1Q Nc6 Qb7 b6 Ra7 Qe8 Kg7 N7b5 Qb8 b7 Bc7 Na5 Qh2 Bf1 Qb2 Qc6 Rh6 Ncd6 Qh8 b8Q Ra8 Qc2 Rh7 N5c4 Rh6 Kg2 f3+ Kh2 f2 Kg2 f4 Kf3 Ra7 Ke4 f3 Qba8 Nf4 Qb6 Rh4 Be2 f1N Nf7 f2 Bf3 Qb1 Qa2 Qb2 Bd1 Rh5 Bc2 Rh4 Re2 Ne3 Bb1 Neg2 Re3 f1N Rb4 Bcd8 Ke5 Nd2 Ne4 Nb3 Bd2 Bf6+ Kd6 Bfe7+ Kc6 Bc7 Re2 Nd5 Bg5 d2 Re3 Ndf4 Nce5 Nbc5 Qd5 Nb3 Nec4 Nac5 Qdd8 Ra5 Qe8 Na6 Qed8 Kg6 Qg8+ Qg7 Nbc3 Bh3 Qba7 Bg4 Rb7 Be6 Qgd8 Qf8 Ncb5 Kg7 Qb6 Qh8 Qg8+
2rbn1N1/b3Rq1Q/1R1BB1RR/1b2rNr1/k1p5/1p1nN1QK/1qRr3n/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 f5 a4 b5 d4 g5 h4 c5 e4 b3 d6 Kc6 h5 b4 d7 b2 d5+ Kb6 e5 Ka5 h6 g3 d6 f3+ Kh3 b3 h7 f4 e6 c4 e7 g2 e8R f2 Re7 f3 Ra2 Nc6 Ne2 g1B Ng3 Nf6 Na3 b1Q Nc2 Nb4 Qd3 Qb2 Bf4 Ne8 Nf5 Qc7 d8R Bd7 Rb8 Bb5 Rb6 Rc8 d7 Qb7 Be2 f1N d8N f2 Nce3 Nh2 Bg4 f1R Nf7 Rd1 Bd6 Rd2 N7h6 Bg7 Qc3 Bf6 Ng8 Qc7 Qe5 Nd3 Qf4 Qd7 Qg3 Bf2 Rg1 Qe6 Rh1 Qf7 Rg1 Rc5 Rh1 Kb4 a5 Bg1 a6 Bf2 Re5 Bd8 a7 Bg1 Re7 Bf2 Bf4 Re5 a8R Bg1 R8a6 Bf2 Bf3 Bg1 Bd5 g4+ Kh4 Bf2 Rg6 Bg1 Be6 Bf2 Rb6 Bg1 Qf2 g3 Kh3 g2 Qg3 Bf2 Rh6 g1R Rg6 Qc1 Rc2 Ka4 Bc8 Qb2 Be6 Rc5 Bd6 Re5 Nf6 Rg8 h8Q Rg2 Qh7 Bg1 Ned5 Bc5 Nde3 Rf8 Rbb7 Ba7 Rb6 Rg8 Rh6 Rg5 Ng8 Rge2 Rf1 Rc5 Rg6 Rc8 Rf4 Re1 Rh4 Ree2 Rhh6 Re1 Nd5 Re5 Nde3
5rk1/Q1bR1B1N/3q1BKb/BN1B1Rp1/1qb1Q3/2p3r1/n1B2Q2/qrb1n3 b - - 0 1 illegal: No possible last move, all moves rejected
bB1nr1bR/1q1B1r2/q1Q2b2/k1pp1B2/1Q6/n1B1NN1q/K1QB3R/2r4b b - - 0 1 illegal: No possible last move, all moves rejected
2rR3B/q1n1q3/q2R1n2/NpbbQb1k/BNnR4/B2rq3/1R1R1p2/2KQ4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 f5 Kd2 Kf7 g4 Kg6 e4 c5 a4 h5 a5 b6 d6 c4 e5 f3 g5 h3 d5 h4 a6 f2 a7 h2 e6 f4 d7 h3 d6 b3 e7 f3 Na3 b2 Nc2 b1Q Ne2 Nf6 Ra6 Qa2 Ba3 c3+ Kc1 Kh5 Nb4 c2 e8Q+ Qf7 g6 b5 g7 Qe7 d8R Bf5 g8R Qg6 Ra4 Na6 d7 Rc8 a8R Nc7 Nd4 Rh7 Bd3 f1N Be2 Ne3 R8a6 Nc4 Rd6 Qgf7 Re1 h1B Nb3 h2 Na5 Rh6 Rg4 f2 Rgd4+ Bf3 R4d5 h1Q Rd2 Qg1 Bd3 Qgg6 Ree2 Bd5 Be4 Kg5 Bd3 Rh3 Be4 Kh5 Bd3 Qe3 Qe5 Qe7 Be4 Qa7 Bd3 Nb2 Bc4 Rf3 Bb3 Re3 Na2 Rf3 Rad4 Rd3 Nb4 Nc4 Ba4 Qe6 Rc6 Bc5 Rd6 Qg5 Re8 Qh6 d8B Qd7 Be7 Qe6 Bf8 Qe7 Bg7 Qg6 Bh8 Qh6 Red8 Qe3 Qf4 Q3e6 R6d7 Qea6 Rd6 Qf7 Qe5 Nb6 Kb2 Rh3 R2d3 Nc4+ Kb3 c1Q Rb2+ Rf3 Ka2 Qe7 Kb3 Qf4 Kc2 Qe4 Kc1 Qe2 Rdd2 Rd3 Qc2 Qe3 Qd1+
KQnrqBb1/R1bN3B/r1N3R1/pR6/2R3n1/p3B2n/1r3Qkq/b1b4R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 d4 Kd6 h4 f5 e4 g5 b4 c5 h5 c4 b5 f3 Ke3 a6 b6 c3 b7 g3 h6 g4 h7 f2 Qe2 g2 Nd2 g3 Nb3 c2 Nf3 g1B Nc5 g2 Nd7 Be7 Nfe5 Nh6 Nc6 f4+ Kd3 f3 Kc4 Bh4 Be3 c1B Qa2 Rg8 h8B Qe8 Bg7 Bg3 Bd3 f1Q Qf2 Ng4 Kb4 Be5 Ka5 Bgh2 Kb6 g1N Bb1 Qg2 Bf8+ Qe7 Ra3 Nh3 Rb3 a5 Rb5 a3 Bc2 Na6 b8R Bhf4 Rb7 Nc5 Ra7 Nb7 Bd3 Bh8 Ka6 Qh2 e5+ Kc7 e6 Qe8 e7 Kd6 Bh7 Bg3 Ndb8 Be6 Nd7 Rg6 Kb6 Rd8 Ka6 Bg8 Kb6 Qf7 e8R+ Qe7 Bg7 Qf7 Re4 Qe8 Rf4 Re6 Rf6 Bf4 Rg6 Bg3 Qf1 f2 Bf8+ Qe7 Qe2 f1R Qf2 Rd1 Ka6 Rd2 Kb6 Rb2 Ka6 Nc5+ Kb6 Na4+ Ka6 Nb6 Kb7 Nc8 Ka8 Rb3 Nc5 Rd3 Rb8 Rd2 Ne5 Rd7 Rb4 Rb7 Rb3 Kc7 d6+ Kd8 d7 Kc7 d8R Ra6 d5 Qe8 Nc6 Ba1 Rc3 Kb6 Rd7 Bc7 Rf7 Rd4 Rf4 Kb5 Rb3+ Kc4 Rb4+ Kc3 Rf5 Rd2 Rbf4 Rbb2 d6 Bb6 Rb4 Rd1 Rb5 Kc4 Rf4+ Kd5 Rc4 Rd4 Nd3+ Ke4 d7 Bd8 Nde5 Bb6 Nb8 Bd8 Nec6 Bb6 Qc2+ Kf3 Qf5+ Kg2 d8Q Ne7 Qdc8 Rd8 Nd7 Bc7 Qb8 Nc8 Qf2+
k1NN3N/5b1r/KBB3b1/p2n2p1/Q3qq2/Nr1nN1R1/2bb1Q2/qrQR4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 a5 Kc4 f5 b4 d3 h4 g3 e4 d2 h5 f3 b6 d5+ Kb5 Kd7 c4 g2 c5 f2 b7 Kc7 c6 d4 e5 f4 e6 f3 e7 d3 e8Q Nd7 b8N Ngf6 h6 Nc5 h7 Nd5 Ra3 Be6 Ne2 g1R Nec3 Qe7 Bg2 f1B Qe1 d1B Qf2 Bg8 Be3 Bc2 Nd1 d2+ Rd3 Ra7 Na3 Qe4 Rh3 Bd6 Rg3 Bf7 Bh1 Rf8 h8N Bf4 Bd4 Bh3 Ne3 d1Q Rd2 Qe1 Rd1 Bf5 Bg2 Nd3 Bb6+ Kd6 c7 B5g6 Nc6 Qc3 c8Q Qa1 Ne7 Rd7 Ka6 Rh1 Qg1 f2 b5 f1Q Qf2 Rh7 Qc4 Rb7 Qec8 Rd8 Qa4 Rg8 Qc3 Rgb8 Nc8+ Kd7 Nec4 Bd2 Ne3 Qh1 Qb2 Qhh4 Qc1 Qhg4 Ba7 Kd8 b6 Qgf4 Bh1 Rc7 b7 Rc3 Bd4 Kc7 Bc5 Rb3 Ba7 Ra8 b8N Rb1 Nc6 Rab8 Nd8 R8b3 Bb6+ Kb8 Bf3 Ka8 Bg4 Rh6 Bd7 Rh7 Bc6+
K2nQ2b/2BqB2r/2N1Q2p/1qBBn3/Rn1n2BN/1p1R1b2/7r/rk1q1Q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 c5 a4 b5 a5 f5+ Ke5 f3 a6 b3 d6 f4 a7 h6 d5 b2 g5 f2 g6 f3 d7 b4 d6 b3 g7 h3 Be3 h2 Qd2 Rh7 Nc3 b1Q Qe1 Bb7 Bh3 f1Q Nb5 f2 Bg4 Na6 Ra4+ Nb4 Nd4 Ne7 Nc6 Qd1 Nf3 Qc8 d8B Qd7 Rg1 h1R Nh4 Rh3 Bd4 Rh2 e4 Kd3 g8Q Kc2 Qe6 c4 Bc7 c3 Bc5 Kb1 Rg3 c2 Rd3 c1N Kd4 Bg7+ e5 Qfe2 Qf1 Bh8 Kc4 Qde1 Kb5 Q1d1 Qh1 f1N Kb6 Ne3 Qf1 Rb8 a8B Nec2 Ka7 Nd4 Rc3 Qb5 Rd3 Qd8 d7 Rc8 Nb8 Bf3 Bd5 Nec6+ Ka8 Qe7 d8B Qd7 Bde7 Nd8 B7b6 Rc6 Bc7 Rb6 Nc6 Rb7 Qd6 Rb6 e6 Rb7 Rc3 Ncd3 Qe5 Rb6 Qf6 Ne5 Rd3 Rb8+ Ka7 Rh3 Ra2 Rg3 Bed6 Bg7 e7 Rh3 e8Q Rh2 Qfe6 Bh8 Be7 Rb7+ Ka8 Rb6 Ra7 Ra6 B5d6 Ra3 Ra4 Ra1 Bc5
Rbk1n1r1/2QbK1B1/3p4/NN1Rpb2/nrBB1R2/1qr4R/b4q1R/2Qq4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 h5 g4 a5 b4 e5 c4 d3+ Ke3 a4 f4 h3 f5 d2 f6 h2 b6 d6 b7 Kd7 b5 h4 f7 h3 c5 a3 b6 a2 g5 Qc7 c6+ Kd8 g6 Ra6 g7 Bd7 Nc3 Ra4 Nge2 Be7 f8B Nf6 g8R Rb4 Nd4 Ne8 Ncb5 Na6 Rg2 Nc5 Bc4 Na4 Bg7 Rg8 Bb2 Qb8 Qc1 d1Q Nb3 Bh4 Rb1 a1R Bd4 Ra3 Rg3 Bf5 c7+ Kd7 c8R Bd8 Rb2 Bc7 Rf1 h1B Rf4 h2 Rh3 Bf3 Ra2 h1B Rc2 B3g4 Rch2 Nc3 Na5 Na4+ Kf2 e3+ Kg3 e2+ Kh4 e1Q+ Kg5 Bd5 Rd8+ Ke7 Rc8 Qf2 Rd8 Qa7 b8Q Rc3 b7 Qb6 Qa7 Bd7 Ra8 Bgf5 b8R Bf7 Rc8 Bb8 Rc5 Kd8 Rd5 Qb7 Qb6+ Kc8 Qa7 Nc7 Kf6 Ne8+ Ke7 Bf7e6 Na3 Qb5 Be2 Qc4 Nb5 Qcb3 Qb6 Bb1 Bf1 Bef5 Bc4 Ba2 Qc7+
1Nn5/4bkq1/1rRpnBbN/p2B4/2n3r1/2nq3R/1Rr1BQbK/5BQB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 b4 a5 g4 h5 Kg2 f3+ Kh2 f2 e4 h3 c4 f4 b6 d3 e5 h4 b5 f3 b7 d6 g5 d2 g6 Rh6 e6 Ra6 b6 Rh8 c5 Nh6 c6 Bd7 g7 Be7 g8B Qc7 Ne2 Nf5 Ng3 Ng7 Nf5 Rh7 Be2 f1Q Nc3 f2 Bb2 Kf8 Qc1 d1N Nd5 Nc3 Nf6 Be8 Nh6 Nd7 b8R Rh8 b7 Nb6 Qg5 Nc8 Rc1 Bg6 Qg1 Rb6 Nd7+ Ke8 Ba1 Qd1 Rc2 Qd3 Rb2 Rh7 Ra8 Rh8 b8Q Qa7 c7 Qb7 Bh7 Rg8 Ra6 Qa7 Qa8 Qb7 Nb8 Kf8 Qd1 Qa7 Qg2 f1N+ Kg1 Ke8 Qf2 Ne3 Kh2 Nc4 Qc1 Bd8 e7 Ne6 Qcg1 Rg7 Nf5 Kf7 e8B+ Kf8 Qe3 Be7 Bc6 Kf7 Bd5 Rg8 Qgf2 Rg7 Rg1 Rg8 Rg3 Rg7 Qg1 Rg8 Qef2 Qb7 Kh1 h2 Rh3 Qa7 Kg2 h1B+ Kh2 Bg2 Bf1 Bh5 Be2 Rg4 Bf1 Bg6 Be2 Rb3 Rc6 Qad4 Bf1 Rb6 Nh6+ Ke8 Re3 h3 Bg8 Qg7 Bf3 Nf8 Bgd5 Ne6 B3e2 Rf4 Kg3 h2 Rf3 h1R Re3 Na7 c8B Rh2 Bb7 Nc8 Ba8 Rhh4 Rf3 Rhg4+ Kh2 Re4 Rh3 Re5 Bd1 Re2 Bb7 Rd2 Bde2 Rc2 Ra2 Ne4 Bf6 Nc3 Rb2 Nd1 Be4 Bf3 Rc5 Nc3 Bbd5 Bh1 Rc6 Bf3 Bg2 Kf8 Bh1 Ke8 Bf1 Bg2 Bf3 Kf8 B3e2 Ke8 Nf5 Kf7 Nh6+
n1q2B1B/r5N1/pBn1R2K/qR6/RNBB2Q1/p1q5/2b1nr1b/3kqr1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 e4 Kd4 b4 c5 d3 h5 b5 f5 e5 a3 g5 h3 d6 h2 g6 h4 g7 h3 d7 Nc6 e6 Nf6 g8Q Bd6 b6 Ne8 b7 Nc7 Qg4 Rf8 b8B a6 e7 c4 e8R c3 Bb2 Qf6 d8B Ra7 Re6 Na8 Be7 Qe5 Qe1 Qa5 Qd1 Rf6 Bf8 Bd7 Be2 Be8 Ra2 Bg6 Ba1 Bc7 Rb2 c2 Nc3 c1Q Na2 Qcc3 Nb4 Nd8 Qg3 Qc2 Nc6+ Kc3 d4 Nf7 d5 Nd8 d6 Bh7 Qf1 Kd2 Kf2 f3 d7 f4 Rb5 Qb2 Qb1 Bc2 Qg6 Qbb4 Bf1 Be5 Ne2 Bc7 Ng3 Rf5 Bh8 Qc3 Re8 Bd6 Rg1 h1Q Nh5 Qh2+ Qg2 Rf6 Qb4 Kd1 Ng7 Rf7 Bc7 Rf6 Bb6 Bc7 Ne5 Nc6 d8B Bd6 Nd3 Rf5 Rh1 Qg3+ Kg1 Qg4 Kh2 f2 Bf6 f3+ Be5 Rf4 Rg1 Qd7 Kg3 h2 Re6 h1Q Bf6 Rf5+ Kg4 Qc8 Be5 Rff7 Kg5 Bc7 Bf6 Bh2 Be5 Rf4 Kh6 Rff7 Qe4 Rf5 Qg6 Rff7 Rg4 Qg1 Bh3 Qge1 Bf1 Rf6 Rf4 Rf5 Qg4 Rff7 Bh3 f1N Bg2 Ng3 Bf1 Rf5 Qd5 Rff7 Ra4 Rf5 Bed4 Rf4 Qg6 f2 Nb4 Rf6 Bc4 f1R Qe4 Ne2 Qh1 R6f2 Qg4
4br2/n3p3/Bb1k2rr/RQ1q1qBN/R1q1q3/K2nb1R1/1R1B1R1p/N6Q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 b4 d5 c4 Kd7 Kc2 d3+ Kb2 d4 f4 d2 g5 d3 c5 e3 b6 a4 b7 h3 b5 a3+ Ka2 h2 b6 h4 f5 e2 c6+ Kd6 c7 e1R g6 h3 g7 Rh6 f6 Bd7 c8R Be8 f7 Ree6 Qh5 d1Q Ne2 d2 Rc4 Qc8 Ng3 Qf3 Ra4 d1Q Bd2 Reg6 Ba6 Nf6 g8R Nd5 Rf1 h1Q Rf2 Nc6 b8R Qff5 b7 Na7 Qh4 Nf4 Nh5 Bg7 f8B Nd3 Qe4 Qhe1 Qh1 h2 Bg5 Qdf3 Nd2 Bd4 Nb3 Be3 Bg7 Qfd1 Bc3 Qc4 Bd2 Qee2 Rb1 Qef3 Rb2 Q3e4 Rc8 Qdf3 Rc5 Qed5 Rca5 Q3e4 Ka1 a2 b8Q+ Ke6 Qb5 Kd6 Bc3 Bf7 Bd2 Rf8 Rg7 Be8 Rb1 Nc1 Kb2 a1B+ Ka3 Bad4 Rb2 Nd3 Na1 Bb6 Bh4 Rgf6 Rg3 Rfg6 Bg5
B1Nbk3/BN2pr2/8/2QQn1B1/rr3BB1/1np3b1/1RKnbnqq/1R5R b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 a5 d4 c5 Kd2 h5 b4 a4 f4 c3+ Kc2 h3 f5 h2 b6 c4 b7 h4 g5 a3 g6 a2 g7 h3 f6 e3 b5 e2 b6 e1B d5 Kd7 f7 Qc7 d6 Rh4 Qd4 Nc6 b8B Ba6 b7 Bg3 Na3 Ne5 Be2 Nf6 g8B Bh6 f8R Be3 Ba7 Ne4 b8B Nd2 Rb1 a1R Nb5 Ra4 Rf2 Ke8 Nf3 Qc6 Ng5 Qg2 Qd5 Bb6 Qc5 Bd8 Bd5 Rb4 Bd1 Rf4 Ne4 Rf5 Bg4 Rf7 Rd1 h1N d7+ Kf8 Bc6 h2 Nbd6 Bb5 Re2 Nf2 Nb7 h1Q Ned6 Qhh2 Nc8 Ba6 Rh1 Bb5 Bb6 Raa4 Be4 Nb3 Bg5 Nd2 B6a7 Ba6 Kc1 c2 Bef3 Nc6 Bbf4 Ne5 Re3 Bb5 Reb3 Ba6 Kb2 c1N Kc2 c3 R3b2 Be2 Bd5 Ncb3 Be4 Bb6 d8Q+ Kg7 Qdd6 Kf8 Bc6 Bd8 Qdd5 Re4 Na5 Reb4 Ba8 Ke8 Nb7
r1n1Nr2/Q2p4/B1Rn4/2b1Q3/q2RqQK1/2k1N1N1/N1N3rp/B2rnq1b b - - 0 1 illegal: No possible last move
QK4B1/1p1k3n/3B1rNq/2b4r/B2nNR1Q/b2q3R/1Bb1p2r/nN1B1n2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 e5 g4 d5 f4 h5 a4 e3+ Kd3 h4 c4 e2 a5 e1B f5 h3 f6 b3 g6 h2 f7+ Kd7 g7 b2 g5 Ba3 f8B Rh5 a6 Beb4 a7 Nc6 c5 Nf6 g8B Qb6 g6 Nh7 g7 Rb8 a8Q e4+ Ke2 e3 Kf3 d3 Kf4 d2 Qe1 d1Q Qh4 d4 Bb3 d3 g8B d2 Ne2 Qc2 Bd6 d1N Ng3 Nd4 Be2 Qd3 Ne4 Qba6 Rf1 h1R Rf3 Rh2 c6+ Ke8 c7 Bf5 Ke5 Kd7 c8N Bc5 Ne7 Rf8 Kd5 Rf6 Ng6 Qb6 Rf4 Qba6 Nbc3 b1N Bb2 Nd2 Nb1 Nf1 Bf3 Nc3+ Ke5 Nc2 Bd1 e2 Ra2 Nb5 Ra1 Bab4 Ra3 Na1 Ba2 Qc2 Rh3 Ba3 Bab3 Qd3 Bf8 Qc2 Nd6 Bg1 Nh8 Re6+ Kd5 Qc3 Be7 Qg7 Ng6 Rf6 Bf8 Bgc5 Ke5 Rh6 Kd5 Bc2 Ne4 Nd4 Ke5 Ba7 Bb4 Qd3 Kd5 Bb8 Kc5 Bd6+ Kb6 Qf8 Ka7 Rh5 Bc5 Be7 Bb4 Qh6 Kb8 Bd8 Be7 Bb6 Bd6 Bbc5 Ba4+
N2rbbn1/p1B4K/3Qqq2/bN1NQ3/4BqN1/2rpB1R1/1qrR4/4Nn1k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 e4 Ke5 h4 f5 b4 g5 b6 d5 b7 f3 Kg3 d3 h5 d2 h6 d4 b5 f2 h7 Qb6 c5 Bd7 c6 Be8 c7 Nd7 c8N Qe6 b8N Nb6 Ne7 Nc4 b6 Ne3 Bd3 f1Q Na6 Rc8 b7 Rc2 Nc7 Rc3 b8B f4+ Kh2 f3 Kg3 f2 Na3 Qe2 Ned5 f1Q Rh3 Qff6 Ra2 Qef1 Bb1 Qc4 Nab5 Nf1+ Kg2 g3 Na8+ Qc7 Rb2 Qcd6 Bc7 g4 Bc2 Nh6 Bb1 Rg8 h8Q Rc2 Ne3 Kf4 e5 Rg7 Ra2 Ng8 Nf3 Qb4 Ne1 Qb2 Qh5 Rd7 Qh8 Rd8 Qg7 Rc3 Be4 Rc8 Qe7 d3 Qe2 d1Q Qd6 Rd8 Bd2 Qdb3 Bc1 Qef5 e6+ Q5e5 e7 Qbe6 Kg1 g2 Kf2 g1R Rg3 Qa1 Rd2 Qb2 Rh3 Rh1 Kg2 g3 Ng4 Bf7 e8N Rh2+ Kg1 g2 Kf2 Bg6 Rg3 Bh5 Bb8 Bg6 Nec7 Be8 Nd5+ Kg5+ Bf3 Kh4 Bc7 Qef4 Qee5 Rh1 Qd4 g1B+ Kg2 Rc2 Q4e5 Bb6 Be4 Rc3 Re2 Ba5 Be3 Q6h6 Rd2 Qff6 Bf5 Rh2+ Kf3 Qhg5 Ke4 Rg2 Rd1 Rgc2 Rd2 Qfg7 Rg1 Kh3 Bg6 Qh4 Kf4 Qf2+ Kg5 Qgf6+ Kh5 Bc6 Be4 Q2f4 Nf2+ Kh2 Rg3 Qf3+ Ng4+ Kh1 Qe7 Qf4 Q7f6 Bd7 Kg6 Bc6 Kh7 Be8 Qe7 Qff6 Qb4 Qf4 Qbd6 Qff6 Bf5 Qf4 Be4+
2nNk3/p1p1N3/bb1q1qN1/nRr5/1K1Q1RB1/2r2N1B/bN2Qq2/B1q4r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 h5 Kd2 f5 Kc3 h3 g4 f3 e4 h2 b4 h4 e5 h3 b6 f2 b7 f4 e6 f3 d5 Bh6 e7 Bf8 b5 Nh6 d6 Bd7 g5 Ng8 g6 Bf5 g7 Rh5 b6 Bg6 Qd4 Rf5 Nd2 Bf7 Bb2 Nc6 b8Q Na5 b7 Re5 Rb1 Rf5 Bd3 f1Q Be2 f2 Bg4 Rg5 Qc8 Rb8 Qe6 Qe2 Ba1 f1Q Qee5 Qf6 Rf1 Qe1 Rf4 Qf2 Ngf3 Bd5 Rb1 h1B Nh4 h2 Qe2 Bhe4 Nhf3 h1R Rb3 Bd3 d7+ Kf7 Bh3 Be6 e8B+ Ke7 Kb2 c3+ Ka3 c2 Nc4 c1Q+ Nb2 Ba6 Bh5 Re5 Rb4 Ba2 B5g4 Kf7 Ka4 Ne7 g8N Nc8 Rb6 Bd6 Ne7 Bc5 Ng6 Qe7 d8N+ Ke8 Nc6 Qed6 Nce7 Ra8 b8N Rd5 Nbc6 Rb8 Nd3 Rb7 Rb1 Rb3 Nd8 Rc3 Rb5 Bb6 Nb2 Rdc5 Kb4
Rr1nbrN1/1r2n1RN/k1q5/N2R2b1/BQ4RB/1p2R1r1/1K1Q2p1/r1r1b3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 d4 g5 Kd2 c5 Kc2 Kc7 e4 Kb6 h4 f5 e5 g3 d6 g2 h5 f3 h6 g4 d5 c4 e6 b3+ Kb2 f4 a5+ Ka7 d7 b5 e7 g3 e8N b4 d6 f2 h7 f3 a6 Nc6 Nd2 Nge7 Qe1 Rb8 Rh4 Qb6 d8R Bd7 Nh3 g1R Nf6 Be8 d7 g2 Ra3 Rg8 h8R Rg3 Be2 f1R Rg8 f2 Bd1 Rb7 Ng5 c3+ Ka1 c2 Rg7 Rb8 Rg4 b2+ Ka2 b1R Nb3 Qb5 Na5 Rh1 Bd2 c1B Ba4 Kb6 a7 Ka6 Bc3 Rh7 Ng8 Ra1+ Kb3 Rg1 Kc2 f1R Bf6 Qd5 Re3 b3+ Kc3 Bd2+ Kb2 Rc1 Rc8 Nd8 Rc5 Qc6 Rd5 Bb4 Qd2 Ra1 Qd4 Be1 Qb4 Rc1 Nf3 Rgh1 Bh4 Ra1 Ng5 Rc1 Rf7 Bh6 Rg7 Rf7 Rg6 Rh8 Nh7 Bg5 Rg7 Rb7 Rc5 Rf8 Rd5 Nf7 d8Q Ra1 Qdd6 Nd8 Qh6 Bf6+ Rde5 Nf7 Rc4 Bd2 Rc2 Bd7 Rec3 Re8 Rd5 Reb8 Qe3 Be8 Nh6 Rf8 Ng8 Bg5 Rcd3 Rh2 Rc4 Nd8 Rg4 Rhh1 Qe2 Rhc1 Re3+ Qc4 Qd1 Be1 Qdd2 Qc6 a8R+
1rnn2nK/1R1pBB2/2Nb4/b1R1n1r1/1p1B4/1q1bn1nk/QN3BQ1/4BR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 h4 b5 a4 e5 f4 b3 c4 g3 h5 d3 h6 b2 c5 d2 c6 g4 h7 b4 a5 g2 a6 g3 a7 Qc7 Qf3 d1N Nd2 b1N Nc4 Bd6 Bd2 Nh6 Ne2 g1B Be1 g2 Nb2 Ba6 Nd4 Rg8 Bc4 Rg5 Bf7 Ne3 Ra2 Qb6 c7 Ng8 c8R Na3 Rc5 Nb5 Nc6 Bf2 Qg3 g1N Qg2 Ne2 Rf1 Qa5 Ra1 Qa2 Rac1 Qb3 R1c3 Kg7 h8B+ Kh6 f6 Bh4 f5 Bg3 Bc4 Kh5 f7 Kh4 f8B Bc7 f6 Ba5 f7 Nd6+ Kf3 Bb5 Be7 Nc8 f8B Ba6 Bf7 Bd3 Bd2 Bh2 Be1+ Ng3 R3c4+ e4+ Kf4 Nb6 Bd4 Nc8 Qc2 Kh3 Qb1 Nd1 Qa2 e3 Rb5 e2 Rcc5 Ne3 Rb7 Rg7 Bh4 Rg5 Bf2 e1N Be7 Nf3 Be1 Rd5 Bf2 Ne5 Kg5 Na6 Be1 Rb8 a8Q Nc7 Bf2 Nh1 Be1 Ne6+ Kh5 Nd8 Bhf2 Ng3+ Kg5 Nf6 Kh6 Ng8+ Kg7 Rd6 Bd2 Rg6+ Kh8 Rg5 Bde1 N5g4 Ra7 Nh1 Ne5 Bf4 Qe4 Ng3 Nc6 Bd6 Rb7 Ne5 Qg2+
b2bnRnk/2b2R2/1Bn3rb/4n2q/1R5p/pNRN1RQ1/B5KQ/3Nbr2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 h3 g4 Kf7 b4 Kg7 f4 a5 Kf2 c5 f5 h5 g5 e5 d5 e3+ Kg3 a4 b6 a3 g6 h2 b7 c3 d6 e2 d7 e1N b5 c2 b6 c4 Nd2 c3 Ngf3 e4 Bd3 e3 Qe2 Be7 Rf1 Rh6 f6+ Kh8 f7 Qe8 d8R Nf6 Nb3 Nc6 b8Q Bb7 Ne5 Nf3 Rd7 h1N+ Kh3 h4 Qh2 e2 Be3 e1B Rc1 Ra4 Kg2 Ba8 b7 Rf4 Rc7 Bd8 f8R+ Ng8 Be4 Ng3 Bc5 Nf5 g7+ Kh7 Bd3 Nge7 g8N Kh8 Nf6+ Ng8 Ne4 Qh5 Nf2 Ng7 Rcf7 Ne8 Nd1 Rd6 Qc7 Rf5 b8R Rg6+ Ng4 Rff6 Qcg3 Nfe5 Rb4 Rf4 Bb6 Bc7 Rb1 c1B Ngf2 c2 Rb2 Be3 Bf5 c1B Rc2 Bc5 Rc3 Be7 Bb1 Bed8 Nd3 Rf3 Ba2 Bh6 Rf2 Rff6 Rf3 Rf4 Re3 Rf1 Ref3
n1Q1kn1K/4Br2/r1R1r1qp/4rQ1b/2QBR1p1/6N1/1b1Bbb1N/B1b2B2 b - - 0 1 illegal: No proof kernel
1NBBb1KB/NNQBQr2/2r2p2/3rn3/R1p5/2brn1Br/2nqR3/2k3n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 a5 e4 c5 d4 h5 d5 f3 d6 c3 b6 c2 g5 Kb3 d7 f2 g6 a4 b7 h3 g7 h2 Bb5 f1R Na3 c4 Qd6 h4 Nf3 h3 Qc7 Rh5+ Ng5 Nh6 g8B Nf5 Ne6 Ra6 Ra2 Qg5 d8B Bb4 Bd7 Qd2 Kf6 Rc6 e5 Ne3+ Kg7 Bc3 Nb5 a3 Na7 Rf3 Rf1 h1R Re1 h2 Re2 Rd1 Bh7 h1R Bf5 R1h2 Kg8 R2h3 Ra1 a2 Nc5+ Kb4 b3 f6 e6 Rh7 e7 Rf7 e8Q Rfg3+ Bg4 Rf3 Qe7 Rf5 Be6 Nd7 b8N Ne5 Bd7 Ba6 Bc8 Rfh5 Bgd7 Bb5 Rb1 a1N Nb7+ Rd6 Rb2 Ka3 b4 Rc6 Ra2+ Kb3 Ra6 Rf5 Ba3 c1N Ra5 Ba4 b5 Nac2 b6 Bb5 Bd6 Kb2 Ra4 Kb1 Qe6 Rfh5 Bf8 Rf5 Bg7 Rg5 Re1 Ne2 Qe7 Ng1 Re2 Rf5 Bh8 Kc1 Na5 Qe1 b7 Rd3 Na6 Qd2 b8B Ng6 Nb7 Rfd5 Qa5 Ne5 Bbc7 Nef3 Bg3 Ne5 Nb8 Rc7 Be6 Be8 Bed7 Rc6 Qc7
qk1bB2b/1N1bRb1Q/1R2p3/BrRn4/2B1pr2/5RQ1/N3n1n1/3K1Rnb b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 a5 c4 h5 b4 d5 g4 Kd7 g5 Kc7 g6 e6 f5 h3 f6 h2 g7 a4 f7 h4 c5 h3 c6 a3 Bh6 a2 Ke2 Ne7 g8B Bd7 Bd2 Rh4 Na3 Rf4 Nc4 Ra5 Nd6 d3+ Ke1 d4 Ne2 Nd5 Nc3 Bg7 f8R Bh8 Bf7 Bf6 Rc1 a1B Na2 Qc8 Rb1 Bd8 Qh5 Bb2 Rg1 h1N Nb7 h2 Qh7 Ng3 Be8 h1B Kd1 Ne2 Rg7 Ng1 Re7 Bc3 Be1 d2 Bc4 Ba1 Rb3 Bb2 Rf3 Ba1 Kc2 d1B+ Kc1 d3 Rf5 Na6 b6+ Kb8 b5 Nab4 Rf6 Nc2 c7+ Ka8 Rff7 Nce3 Kd2 Qb8 c8R Bh8 Rc5 Ng2 Rf1 Bh5 Rf5 Rf3 Kd1 Bf7 Bc3 Rf2 Rf3 d2 Bb4 Ra3 Ba5 Rb3 Nd6 Qc8 b7+ Ka7 b8R Rb4 Rb6 Qa8 Rbc6 Kb8 b6 Rb3 b7 Rb5 Rh3 Rf4 Rhf3 Rb2 Rb6 Rb5 Kc2 d1N Kd2 N1c3 Kc2 Nce2 Kd1 Nh4 Rg3 Rb4 Rbb5 Ng2 Rh3 Rh4 Rg3 Ka7 b8Q+ Ka6 Rb7+ Rb5 Rgf3 Rg4 Nf5 Rh4 Qg3 Rf4 Rb6+ Ka7 Nd6 Bg8 Kd2 Bf7 Nb7 Kb8 Kd1
rbqn2Bb/QNb1N3/4b2K/2Q1n2R/4n3/2kB4/n1pp1NNB/N2rr1R1 b - - 0 1 illegal: No proof kernel
n1Bq3b/Qb1Q3Q/1R1R2n1/2R3k1/b1K3NN/R1p3r1/rp6/r1R1bnBr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Ke7 Kd2 Kf6 Kd3 g5 e4 c5 h4 b5 a4 f3 a5 b3 a6 f2 a7 b2 d6 b4 h5 b3 h6 g3 h7 g4 d5 g2 d7 g3 d6 Bg7 Nf3 g1B Na3 b1R Nc4 b2 Be3 g2 Nh4 Na6 Ra3 Bb7 Ne5 Ne7 Kc4 Ng6 Qc2 Rg8 h8R Nc7 Rh6 Ra1 Qd3 Bh8 Ng4+ Ke6 e5 f5 Be2 f1N Bd4 Bh2 Bg1 f4 Qh3 Kf7 e6+ Kg7 e7 f3 e8R f2 Re5 Bg3 Bd3 Kf7 Bf5 Ra2 Nh2 Kf6 Ng4+ Kg5 Rd5 Re8 Qh2 Re1 Qh3 Rea1 Re5 Rb8 a8Q Rc8 Qa7 Na8 Kb5 c4 Rc5 c3 Kc4 Qc7 Qh2 Rg8 d8Q+ Qe7 Qc7 Qd8 Qh7 Rg7 Qh3 Rg8 Bh2 g1R d7 Bf4 Qd3 Bd2 Qd4 Rg3 Bg1 Re8 Qd5 Ree1 Qd3 Red1 Qd6 Be1 Qd3 Qc7 d8R Rdc1 Rb8 Qd8 Bc8+ Ne5+ Kb3 Nd2+ Kb4 f1B Bd4 Bf2 Rb6 Bd5 Rf6 Ng6 Re6 Be2 Rg1 Bd1 Rbb6 Ba4 Qb5 Re1 Qbd7 Rf1 Red6 Rfe1 Rg2 Rh1 Rh2 Be1 Bg1 Nf1 Rc2 Nc7 Rc1 Na8 Rc7 Be4 Kc4 Bb7 Rc5+
4r3/3n2Q1/1QNb2KR/1r4pB/1nr2Bq1/1RN1Bk2/p1r2nnB/1b1BbR2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 a5 c4 d5+ Ke5 f5 e4 a4 c5 a3 c6 d3 c7 a2 h3 d2 b6 d4 b5 g3 b7 f3 b6 f2 Qb3 d3 h4+ Kg4 h5 d1N h6 g5 h7 f4 Be3 d2 Qf7 g2 Nf3 g1B Qb3 Ne7 Kf6 Nec6+ Kg6 Nb4 e5 Nd7 b8B Ra4 e6 Bd6 b7 Re8 Nd4 f3 Be2 f1R h8Q Nf2 e7 d1R Nc3 Rd2 Qg7 Rc2 Rh6 Rb1 Nc6 Bgh2 Bd1 Bhg3 Ne2 Bh4 Bba7 Bhg3 b8B Bb7 Qbg8 Qc8 Bf4 Ba6 Qd5 Bd3+ Qe4 Rb3 Bae3 Nd5 Bd4 Nh1 Bba7 Rc5 Nd8 f2 Bc2 f1N Bg1 Nfe3 Rf1 Nb8 Bh2 Be1 Bd1 Bb1 Bb6 Qd7 c8R Rc2 Qed4 Nf2 Rc3 Kf3 Nc6 Rb5 Rb3 Qg4 Bc5 Nd7 Qb4 Rba5 Qb6 Rac4 Bd4 Bc3 Bc5 Ng2 Bce3 Nb4 Kh7 Rb8 e8B Rb5 Bh5 Re8 Kg6 Be1 Nc3+
1B6/5r1R/4BBn1/1n1npK2/1rbbN2k/nN1p2q1/1r1QN1Bb/Q2R1Bb1 b - - 0 1 illegal: No possible last move
k1Q1nr2/3q1qNB/K2R1Bb1/4B3/N1B1r1p1/bNn5/pr2b1Q1/RB1r2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 Kd3 a5 Kc4 g5 b4 d6 h4 Kd7 e4 Kc7 e5 Kb7 b6 a4 Kb5 f3 c4 f2 h5 d5 c5 g3 h6 d3 h7 d2 e6 f4 e7 d4 e8B f3 Nc3 d3 Rh6 a3 Bb2 g4 Bg6 g2 Qe2 d1Q Nh3 g1B Nf4 a2 Ne6 d2 Bb1 Ra4 c6+ Ka8 c7 Nf6 Ng7 Be6 c8B Bf7 Bcf5 Ne4 Rd6 Qb3 Bg6 Rg8 h8B d1R Bh7 Na6 Qd2 Bh5 Bc4 f1B Qg2 f2 b7+ Kb8 Bf5 Be2 Bh7 Nc7+ Kb6 Bg6 b5 Rb4 Na4 Qd7 Be5 Ne8 Ka6 f1R Bf6 Rf2 Be5 Kc7 b8N Nc3 Nc6 Kc8 Na5 Kb8 b6 Rf4 b7 Re4 Bb5 Qbf7 Bc4 Rb2 Nb3 Be7 Bf6 Rf8 Rd5 Kc7 b8Q+ Kc6 Rd2 Ba3 Qa8+ Kc7 Qc6+ Kb8 Rd6 Rdd2 Qc5 Rd1 Qf5 Ka8 Be5 Qc7 Qc8+ Qb8 Nh5 Qf3 Qc5 Qf7 Bhf6 Qd8 Ng7 Qdd7 Qc8+
k1q4b/1R1n2r1/3r1p2/bR1r2Q1/rq2p1QB/2R1R1n1/2b1QN1K/b1NR1B2 b - - 0 1 illegal: No proof kernel
1n2Q1rN/rkqp1NQ1/2b1q2n/RnrNn3/1NNB4/2p5/3R4/bK3BBr b - - 0 1 illegal: No proof kernel
BBr5/1pb1n1Rr/1Q1R1Q2/kN4nq/1R2r1nQ/r3p3/1Nb1q3/2K2RRn b - - 0 1 illegal: No proof kernel
3k3Q/B1n2rQ1/1b4b1/qNnp1RR1/p1QQ2q1/rQqb1N2/p4K2/rBN5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 g4 h5 f4 a5 c4 e5 b4 e4 f6 d3 f7+ Ke7 g5 h3 f5 h2 c5 e3 b5 a3 b6 a4 g6 e2 b7 a2 c6 h4 g7 h3 c7 d2+ Kf2 Na6 b8Q Nc5 Nc3 Ba6 Nf3 Ra7 Rg1 h1B Rg5 h2 Qbb3 Nf6 g8Q Ne8 c8Q e1R Nb5 d5 Bd3 Rh3 Bb1 Qa5 Qg7 Nc7 Bb2 Bg2 Bd4 h1Q Qh8 Bg7 f8N Qh2 Nd7 Qe5 Be3 Qec3 Nde5 Rg3 Nd3 Bd4 Nc1 Bh1 Qdc2 d1Q Qd3 Bg2 Qdc4 Bf1 Qh4 Bd3 Qch8 Rh3 Qg7+ Kd8 f6 Bg6 f7 Rg1 Ne1 Qg4 f8Q+ Ne8 Qf4 Rf7 Nf3 Nc7 Qfe5 Nb7 Qh5 Bb6 Qed4 Nc5 Qhh7 Bc8 Qh5 Bcf5 Qhh6 Bd3 Qhh8+ Ne8 Bf4 Rd1 Bb8 Rdh1 Ba7 Re1 Qhh6 Nc7 Qhh8+ Kd7 Rf5 Rhh1 Bc2 Re3 Ne2 Qd2 Nh2 Qf4+ Nf3 Be4 Qbb2 Ra3 Re1 Qdc3 Rg1 Bd3 Rgg5 Ra1 Bb1 Qg4 Qbb3 Ke7 Nc1 Kd7 Qh3 Kd8 Qhh8+
Qq3b1R/7N/p4B2/R1pB3q/2RN1pR1/1RQK1kq1/Q2nn1b1/b4nrr b - - 0 1 illegal: No possible last move
1B1NRb1r/B1Q1rp2/1q4b1/BQq2B2/3kBp2/qb2np2/r6R/Rn3N1K b - - 0 1 illegal: No proof kernel
2n2N1Q/n1bRBpBK/2r1Q1Q1/3b3N/1p1kQ3/3q3p/Qq3r2/R1bn1B1q b - - 0 1 illegal: No possible last move
2r2rb1/1pb5/3n3q/B1nbQpQ1/N1Q3qQ/2BB2r1/2k1pRQR/2q2N1K b - - 0 1 illegal: No possible last move, all moves rejected
2Rb1Qn1/ppBRn3/4K3/1Q1R4/1r1BNqpq/1r1r4/3qbN1R/2kb1R1B b - - 0 1 illegal: No proof kernel
Nb3n2/Nq1bppN1/2B1Q2p/4B3/rbb1K2R/B1B2rr1/k4Q2/1RbnB3 b - - 0 1 illegal: No proof kernel
rn1Nbk1n/1b1R3p/3rRb2/3R2B1/N1pRK2R/1r1Bpn2/1Q2n2B/2q3Q1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 a5 Ke3 c5 g4 e5 d4 c3 f4 h3 b4 c2 b6 h2 b7 a4 d5 a3 b5 c4 f5 a2 b6 Nd7 b8Q Ra6 d6 Bh6+ g5 Ra7 f6 Ba6 f7+ Kf8 b7 Ne7 Ne2 Qe8 Nd4 Ng6 Nc3 Bb5 Nc6 Bg7 Na4 Ra6 Bd3 Bf6 Nd8 Rc6 Rb1 a1R Qg1 Ra3 Bd2 Rb6 Rd1 c1N Re1 Rb3 Rd1 Nc5 d7 Na6 Re1 Rg8 Re2 Nh8 g6 Rd6 g7+ Ke7 Re1 Ne2 Rd1 Rf8 g8R Bc6 Rg2 Rg8 Rg4 Kf8 Qc7 Nb8 Qb6 Qe6 Qd4 Qd5 Qb2 Qa5 Rg7 Qc3 Rg5 Qc1 Rg6 Na6 b8B Bb7 Bc7 Nb8 Rh6 Bh4 Re6 Bf6 Kf2 Bc6 Bg5 Bb5 Kg2 e3 Kf3 Bc6+ Be4 Bb5 Rd5 Bc6 Bd3 e4+ Kg4 Bb7 Kf5 Bc6 Nb7 Bb5 d8R+ Be8 Rd7 Nc6 Qg4 Nb8 Rd1 h1B Nd8 Nf4 Rd2 e2 Qg1 e1N Rh2 e3 Rh4 Nf3 Ke4 Ne2 Rd4 Ra6 Bcf4 Ra8 Bh2 Rg6 R7d5 Kg7 f8R Bg2 Rf7+ Kg8 Rfe7 Kf8 Bc2 Qa1 Ree5 Bg7 Kf5 Ne1 Rdd7 Qc1 Be4 Rd6 Bd3 Bf6 R7e6 Bb7 Red5 Nf3 Ke4
1B3r2/2N1p1N1/R1nQNbb1/1r2pBqp/1b2Q3/3n2rN/b1k1Kn2/2RR2N1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 g5 axb5 gxh4 e5 f6 Qd2 fxe5 Qd3 Nf6 Qd1 Ng8 c4 Kf7 g4 Ke6 f4 d5 b4 h5 c5 a5 g5 Kf5 b6 Ke4 b7 a4 g6 h3 b5 a3 f5 d3 c6 h2 b6 d4 f6 d2+ Ke2 a2 c7 Nc6 b8N Ra5 f7 Rb5 g7 Nh6 g8N Be6 c8R Ng4 b7 Bg7 f8N Nf2 Nh3 Bf6 Na6 Nd3 Qa4 d1N b8Q N1f2 Be3 Qc7 Rg1 h1R Nh6 Bf5 Qb4 Bg6 Ne6 Rf8 Nf5 Rh2 Qd6 Rg2 Qa8 Rg3 Nfg7 Qb6 Rd8 Qc5 Nac7 Qc1 Bg5 Qf4 Qa4 Qh4 Be3 Qg5 Ra8 Ndb4 Ra6 d3+ Ke1 d2+ Ke2 Bh7 Qc2+ Nbd3 Ba7 Bg6 Rh1 Qf5 Bb8 d1B+ Kd2 Qg4 Be2 Qf5 Bg4 Bf3 Rd1 Qg5+ Kc3 Ke3 Nd2 Bd5 Bf5 Ke2 Rac1 a1B+ Qb2 Ba2 Nf3+ Ke3 Kc2 Ke2 Qbb4 Bc3 Nfg1+ Ke3 Qg4 Bb4 Nd8 Rd5 Qe2+ Kd4 Nde6+ Kc4 Qe1 Rb5 Qe3 Bc5 Kd2+ Kb3 Ke2 Bb4 Qe4 Kb2 Ra1 Kc2 Rac1+
1nrQ4/p1R1k1Bb/1N1b4/pRn2B1p/Rr1Q2q1/8/NBR2rb1/KRn3n1 b - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 b6 Qb3 bxa5 Qc2 Qg5 Qd1 Qd8 e4 c5 d4 f5 Kd2 h5 Kc3 f3 g4 f2 b4 f4 Kb2 h3 b5 f3 d6 c4 d5 h2 e5 Qc7 g5 Rh6 b6 Be7 b7 Rg6 d7+ Kf8 d8B Bb4 d6 Nd7 b8R Ngf6 e6 Nc5 d7 Ba6 Nh3 Ng4 Ra4 c3+ Ka1 c2 Nf4 Bd3 Bh3 f1R Bb2 c1N Nc3 f2 Na2 Ne5 Bf5 Nc6 Nd5 Qf4 Nb6 Qg4 e7+ Kf7 Rc8 Nb8 e8R Rh6 Rg1 h1N Re2 Ng3 Rc2 Nge2 g6+ Kf8 Bc7+ Ke7 g7 Rh8 Rh1 Ng1 Bce5 Rf8 Rc7 Rc8 g8R Be4 Be6 Bh7 Bf5 N5b3+ Kb1 Nd3 Bg6 Nc6 Ba1 Bd6 Bab2 Nh3 Nc4 Rab8 Bh8 Rb4 Nb6 Nb8 Rf8 Ndf4 Rf5 Ne6 Rb5 Nec5 Bf5 Qf4 Rc1 Qg4 Rh2 Ng1 Qd4 Re1 Bg7 f1B Rc2 Re2 Rd1 Rf2 Rdc1 Bg2 Rd1 Nc1 Ka1 Nce2 Rb1 Nc1 d8Q+
nb4QR/1q2NN2/4nB2/RB1Q1q2/n2r4/Kn3prb/1p1N2Rp/nR1R3k b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Ke7 g4 Kf6 e4 Ke5 d6 f5 g5 b5 a5 h5 d7 c5 g6 h3 g7 h2 a6 f3 a7 Kf4 d4+ Kg3 Kd2 f4 Kc2 c4 Kb2 f2 e5 h4 d5 b3 d6 b4 e6 h3 e7 Na6 e8Q Nc5 Ra3 c3+ Ka1 c2 Kb2 Nf6 g8N Nd5 Nh6 Qg5 d8R Ne6 d7 Qf5 Qf7 Bd6 Nd2 Ndc7 Be2 Kg2 Ra4 f1N Re8 Rg8 d8R Ne3 Bc4 Rg3 Ka1 b2+ Ka2 b1N Ra5 b3+ Kb2 Nc3 Qg8 f3 Ne2 Na4+ Ka1 b2+ Ka2 Rb8 a8R Rb4 Bb5 Rd4 Nf7 Bd7 Re1 h1Q Nc3 h2 Rab8 Qf1 Nd5 Na8 Ne7 Kh1 Rbc8 Bc7 Ka3 Bb8 Re2 Qe1 Rg2 Qg1 Qe2 Qf1 Qc4 Q1d3+ Qb3 Qde4 Rc7 Qc6 Qd5 Qb7 Rc6 Nec7 Rh6 Ne6 Rh8 Bc8 Nb1 Bd7 Bd2 c1N Bc3 Nb3 Nd2 Rc4 Bf6 Nc2+ Ka2 Nca1 Ka3 Bc8 Rd7 Rc1 Red8 Rd1 Rc7 Bd7 Rc1 Bc8 Rb1 Bd7 Nf1 Rd4 Nd2+ Nc1 Rc8 Nec7 Qe6 Qc2 Qd5 Bh3 Nf1 Ne6 Rc3 Qh7 Rd3 Qf5 Rd1 Ncb3 Nd2+
1B2R3/K2RQR2/3qpq1k/brpn4/b3R1n1/1Bqq1RqQ/r1N1p3/3N1N2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Kg6 f4 a5 g4 h5 d4 h3 b4 e6 d5 c3 Kd4 e3 f5+ Kg7 b6 a4 g5 c6 d6 h2 Kc5 c2 f6+ Kh7 b5 a3 b7 h4 f7 h3 b6 a2 g6+ Kh6 g7 Kg6 Ne2 Qd7 Nd2 Kh6 Nc3 Kh7 Bc4 e2 Nf1 Ra4 Bf4 c1Q Bb3 Nf6 g8R Qd8 Qd5 Ng4 Qg2 Bd7 Be5 Be8 Rg7+ Kh6 Bg3 Qf4 Rd1 a1Q Rd5 Qh4 Nd1 Qaf6 Rd2 Be7 f8R Bd8 d7 Ra2 Rgf7 Qc7 Rg1 h1Q Rd4 h2 Re4 Qc8 Be5 Bc7 d8Q Qg3 Qe7 Bd7 Rd8 Be8 Rd7 Na6+ Kc4 c5 Kb5 Qd8 b8N Nb4 b7 Ba5 Na6 Nd5 b8R Qc7 Nb4 Qd6 Nc2 Rf8 Qf2 Qhf3 Qg2 h1Q Ra8 Qhh4 Rh1 Q6f5 Rh3 Qc3 Rb8 Qf6 Rd8 Qge3 Rf3 Qg3 Ra8 Qb8+ Ka6 Qd6+ Ka7 Qed3 Rb7 Ba4 Rd7 Rc8 Rb8 Rc6 Rc8 Rb6 Re8 Qc6 Bc7 Qcd6 Bb8 Rb5 Qh3+
2br1n2/1b1Q1qB1/NBB1p1RN/2p2nrQ/KB1R4/1B1p2b1/4k3/1Q1bq2b b - - 0 1 illegal: No proof kernel
2R2NB1/b2k2r1/1BNp3R/2r4B/2B1bQ2/Q1pnqb2/bp1N2nK/2q1B2b b - - 0 1 illegal: No proof kernel
1r1q4/1rR2p1k/qb6/3BpN1n/QN1Q4/2qq3R/pQqRQK1n/1bQ3B1 b - - 0 1 illegal: No proof kernel
1n1BBn2/n5r1/1Q2Qb1k/2q2q1n/b1N1p2b/Bpr2p2/NK4RN/1RNN4 b - - 0 1 illegal: No proof kernel
1b2bRk1/1q6/nQ2N2K/b4pB1/N4R2/2b2q1n/p1NrrpB1/1nRQ1R1R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 e4 d5 c5 f3 b6 a4 e5 g3 b7 g4 c6 a3 h5 g2 b5 d3 Ke3 d2 Kf4 g3 h6 a2 b6 d4 h7 d3 c7 Bg7 Be2 Bd7 c8N Be8 Rh5 Nf6 Kg5 Qe7 Rh4 Na6 b8R Qb7 Rf4 Nd5 Na3 Nc3 Nc2 Nb1 Nh3 g1B Bf1 Bh2 e6+ Kf8 Bg2 Bc3 e7+ Kf7 Bf1 g2 Kh6 g1B Bg2 Rf8 h8R Bf2 Ne3 Be1 Nc2 Ba5 Rh7+ Kg8 Ng5 Rf7 Ne6 Bhg3 Qe2 d1Q Qd2 Qe2 Qd1 Bec3 Bd2 Ra7 Bc1 d2 Ra8 Bd7 e8R+ Rf8 Ree7 Be8 Rc7 Rf7 Rb8 Re7 Rcc4 Qbe4 Rc6 Rad7 b7 Qb4 Nb6 Qe3 Qh1 d1N Na4 Nf2 Qd1 Rd2 Rbc8 Qe2 b8Q Nh3 Qb6 f2 Rd4 Nc7 Qa6 Nf4 Ng7 Na3 Ne1 Bb2 Qc2 Rd1 Kg5 Qb7 Qb6 Qf3 Rh1 Re2 Ne6 Nh3+ Kh6 Na6 Bg5 Bb8 Rf4 Rdd2 Rd1 B2e5 Qcb3 Nb1 Rcc1 Bec3 Qd5 Rd4 Nc2 Rd3 Rdf1 Rd4 Rc7 Rde4 Qd1 Rd4 Rf7 Rdd2 Rf8#
1B5B/2B1nbQ1/BN1rB3/p3KbqR/rkqR3N/2n3p1/3p1q2/bQq3R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 f5 e5 d5 b6 g5 e6 g3+ Kf3 g2 b7 d3 e7 d4 e8Q d2 h5 d3 h6 Nc6 b8R Nge7 h7 Nd5 b3 Bg7 Qf7 Nc3 Rb4 Ne7 Rh5 a5 Qe1 Ra6 Na3 d1Q+ Be2 Rg8 h8B Rd6 Bd2 Be5 Qg7 Qc1 Qd1 Qc7 Be1 d2 Bg3 Qa7 Qc2 Be6 Qb1 Bf7 Ra4 Rb8 Bh2 Rb4 Bd3 Kd4 c5 Qc7 c6 Kc5 Ba6 g4+ Kf2 f3 Ke3 f2 Nf3 g1Q Nc4 Qg2 Nh4 f1B Nb6 Bd3 Bf4 Qd8 c7 g3 c8B Qd5 Be6 Qc4 Kf3 Bd4 Be5 f4 Kg4 f3 Kf4 Rb5 Rb4 f2 Rba4 Bf5 Rb4 Rd7 Bc7 Rd6 Rba4 Be3+ Ke5 f1Q Rb4 Qf2 Rba4 Qce2 Re4 Rb4 Rd4 Ra4 b4+ Kc6 b5+ Kc5 Na8 Qc4 b6 Bh6 b7 Be3 Qd3 Kb4 b8B Qg8 Nb6 Bh6 Qf6 Qg5 Qc2 Bg7 Qe4 Qb2 Rg1 Qc1 Qb1+ Ka3 Re4 Nd1 Nf3 Qg6 Kf4 Qh6+ Qg5 Ba1 Rd4 Nc3 Ke5 Qg6 Nh4 Qg8 Qh6 Qg5 Qd3 Kb3 Qg7 Kb4 Qb1+
2bQ3q/3NrBR1/q1r1R2p/n4pb1/R1p5/1QB2B1B/1r2B2q/K2n1qNk b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kf6 Kc2 Kg5 Kb2 Kg4 a4 Kg3 e4 f5 d6 c5 e5 b5 d7 c4 e6 h6 a5 b3 a6 f3 d5 b4 a7 h3 d6 f2 e7 h2 e8B Ne7 Nd2 Rg8 Ra4 Nbc6 Ka1 Nd5 Bb2 Rg6 Bc3 Ne3 Ndf3 Be7 Ne5 Bg5 Bf7 Qa5 d8R Qa6 d7 Na5 Be2 f1Q Re8 Rc6 d8Q Rb8 a8B Rb7 Rg8 Re7 Nd7 Kf2 g4 Kg2 Rg7 b2+ Ka2 b1R Qb3 Nd1 Bb7 Bf4 g5 Rb2+ Ka1 Bc1 g6 Bg5 Qa3 b3 Bd5+ Kg3 Bg2 Kf2 Bh3 Kg3 Nf3 Kf2 Rg1 h1Q Rg3 Qh2 Ng1 Rce6 Rd3 Rc6 Rd6 Kg3 Re6 Kf2 Bhg4 Kg2 Bh3+ Kh1 Rf7 Qff2 g7 Qd4 g8B Qh8 Ba8 Rc2 Rg7 b2+ Ka2 Rd2 Bf7 Rc2 Qb3 b1Q+ Ka3 Rb2 Bb7 Qd3 Ba8 Rb1 Ka2 Rb2+ Ka1 Qf3 Bb7 Rb6 Be4 Rc6 B4d3 Qf1 Beg4 Rc2 Bde2 Rb2 Bgf3+
1N2Rrbn/4k3/Qn2pq2/qnbrB3/p2QN1qQ/RQ1K1n1Q/p5N1/5B2 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 Ke2 c5 d4 a5 g4 h5 b4 e3 f4 h3 d6 c4 g5 a3 d5 h4 f5 a2 f6 h2 b5 c3 g6 h3 g7 c2 b6 a4 b7 Nh6 g8Q Qa5 Nd2 Nf7 Kd3 e2 Qg6 Rh5 Bb2 Be6 Ngf3 Nd7 b8N Nb6 Ne4 c1Q Qc2 Qf4 Ne1 Qg4 d7+ Kd8 Qf5 Nh8 Ng2 Bg8 f7 e6 Rc1 Rg5 Be5 Bc5 Qb3 Ke7 Rc3 Rh5 Rg1 h1Q Qf3 h2 d6+ Kf8 Qh3 e1N+ Kd2 Nf3+ Ke2 Qg5 Kd3 Qf6 d8Q+ Kg7 Ne3+ Qg2 d7 Qg4 Ng2 h1N f8Q+ Kg6 Qc8 Ng3 d8Q Nf5 Qfd6 Kf7 Qd4 Nd6 Qa6 Nb5 Rh1 Qfg6 Qdh4 Qf6 Qbb4 Ke7 Ra3 Ra7 Rg1 Rc7 Qb3 Rc8 Be2 Re8 Rc1 Rf8 Bf1 Bd6 Rc8 Bc5 Bf4 Rd5 Be5 Qb4 Rd8 Qa5 Re8+
N1K2n2/3Q4/2Rp1n1q/8/1Qq1nqb1/b1B1R1pB/3NRqpB/1krrB1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 e4 a5 b4 f5 h4 g5 b6 d3 Kb5 Kd4 c4 g3 c5 d2 h5 a4 e5 f3 h6 f2 e6 a3 e7 g4 e8Q a2 c6 f4 c7 g2 b7 f3 Kb6 Ne7 b5 Ng6 h7 Nc6 b8B Bb4 Qe7 Ra3 Rh3 Qg8 Ba7 Qc4 Nc3 Nb8 Nge2+ Kd3 Nd5 Rd8 h8B Nf8 Bc3 Qf4 Qa4 d1N B1d2 Rb3 Be1 Kc2 Qg7 Ba3 Qb4 Rb1 Nc1 Qc4 Nb3 Rc1 Rb1 a1Q Qd4 Qa2 Ra1 Qb2 Ra2 Kb1 Rg3 Qa1 Re2 Qb2 Qg7 Qd2 Qge7 Qh6+ Qe6 Bb7 c8R Qcf4 Rc6 Bc8 Nc7 Qc4 Bb2 Nc3 Na8 Ne4 Kc7 d6 b6 Re8 b7 Nbd7 b8B Ndf6 Qd7 Re5 Be3 Rd5 Bba7 Rd2 Bf4 Rdd1 Qf7 Be6 Qd7 Bf5 Bbc3 Be6 Ra2 Bf5 Kc8 Be6 Be2 f1Q Bg1 f2 Re3 Bf5 Bfh2 g3 Bh5 Bg4 Bf7 Qfe2 Be6 f1Q Rd2 Qef2 Rde2 Qff4 Bf5 Q1f2 Be6 Bh5 Bh3 Bg4 Nd2+
4RNb1/NNp3nr/R3bb1k/2Kn2Bb/q3B3/NQQ2nN1/2p2p2/q1Q3r1 b - - 0 1 illegal: No possible last move, all moves rejected
1R2k2q/pQ1R3r/4B3/1K4nq/pN2bbRb/Q1Bn1Qp1/N1R1n3/1R3n1r b - - 0 1 illegal: No possible last move, all moves rejected
3nQ2K/p3q2N/R1b1B2b/2N2ppr/2qBb3/3RqRr1/1R2qRQ1/1kN4n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 f5 e4+ d3 h4 d5 h5 g5 b6 d4 h6 f3 h7 g3 b7 g2 b5 f2 b6 Ne7 Kf6 Nbc6 b8N Bd7 b7 Bc8 e5 Bd7 e6 Na5 Qf3 Rg8 h8R Bh6 Rh3 Ng6+ e7 Qe8 Nd2+ Kc3 Na6 Rd8 b8R Bc6 Nc5 Nb7 Ra6 Nf4 Be2 Qd7 e8Q f1Q Rg3 Nh3 Nde4+ Kb4 c4 d2 Bd1 d3 Ne2 g1Q Qg2 Qe3 Bb3 d1Q Rf3 d2 Bb2 Nf2 Bd4 Nh1 Nc1 Qde2 Rh7 Qc7 Rd7 d1B Kf7 Qfe1 Nf6 Bc2 Nh7 B2e4 Rf2 Rg7+ Kf8 Rf7+ Kg8 Q1c3 Rd6 Qe7 Kh8 Qcc2 Ba2 Qa4 Rd5 Ka3 Rd7 Rc8 Rf3 Nd8 Rb2 Qe1 Rbf2 Qe2 Rb7 Rb8 Rb2 Rf6 N5d3 Rb3 c5 Rc3 Be6 Rb3 Rb6 Qc4 Ra6+ Ba4 c6 Rg6 c7 Rf6 Rd6 Bac6 Nc5 Rc3 Rc2 Rd3 Rc3+ Kb2 c8R Kb1 Rb8+ Bb5 Qg1 Bg7+ Kg8 Qf4 Rh3 Rh6 Qg2 Rh5 Ra6 Bh6 Kh8 Rf3 Rd3 Qfe3 Rh4 Rh3 Rhf4 Rg3 Rb7 Qb3 R4f3 Bbc6 Rb5 Qb4 Rba5 Qb5 Ra2 Qc4 Rb2+
2bR2r1/1BnQ4/3B1R2/3bRRRk/br1N3p/bb1Q3N/npp2Q1K/3qb3 b - - 0 1 illegal: No possible last move, all moves rejected
3B1Q1B/K1Q2QN1/n1Rqbb1p/1k3Brb/2N2n2/bpRb1p2/1B1B3b/7r b - - 0 1 illegal: No proof kernel
4Kb2/1Q2RB2/2Q4r/k1nb1Rn1/N2N2Np/nRrN1pB1/pN5q/2bbn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 e4 c5 g4 Kc7 d4 Kb6 b4 a4 d5 a3 g5 c3 d6 c4 g6 c2 g7 a2 d7 f3 Ke6 h3 Kf7 c3 e5 h2 e6 f2 e7 h4 e8N f4 Qd5 Bd6 Bc4 f1B Nh3 Rh5 Qc6+ Ka7 Nf2 Ne7 g8N Nf5 Ngf6 Bb7 N6g4 Nd4 Nd3 Be2 Re1 Bf8 Nd6 Bd1 Re7 Qc7 d8N h1N Ke8 Nf2 Bf7 Ne4 b6+ Ka6 b5+ Ka5 Ne6 Rh6 Bb2 c1B Nc4+ Ka4 Ba3 c2 Bd6 Ng5 Ncb2+ Ka5 Nc3 f3 Bg3 Ra6 Nca4 Nd7 Rb1 Ba8 b7 Nc5 b6 Nb5 b8R Na3 b7 Rb6 Nde5 Rb3 Ned3 Rc3 Nd4 Qe5 Rc8 Qe2 b8Q Qh2 Qe4 Bd5 Qb7 Bf4 Rc6 c1N Rf6 Bd2 Rf5 Bf4 Nb4 N1d3 Qe6 Ne1 N4d3 Bc1 Qec6 B1b3 Nd1 Bc2 Rb6 Bcb3 N1b2 Bd1 Rb3
bq2RQNK/2RNrN1b/r2p1N1p/p4N1R/5n2/rr6/k1b4B/1Qbn3B b - - 0 1 illegal: No possible last move
5n2/pRb1n1R1/1r1k1pb1/3N4/p1QKb1b1/Bqn1Q2B/R1r2R2/1R2n1BN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 g4 c5 b4 h5 e4 f6 d4 h3 d6 h4 b5 c4 e5 h2 b6 f3 Ke3 h3 g5 f2 e6+ Kc6 d5+ Kc5 g6 c3 d7 c2 e7 Rh7 e8Q Kd6 b7 Qc7 d8B Ne7 g7 Qc4 g8R Qb3+ Kd4 Nd7 Qd3 Rb8 Ne2 Rh5 Bg2 f1N Ng3 Ne3 Nc3 Nd1 Rg7 Rg5 Rf1 h1B Rb1 h2 Bh3 Be4 Bb6 h1B Rf2 Bg6 Qc4 Bhe4 Nh1 Rg2 Bb2 c1N Ba3+ Nc5 Ra2 Bg4 Rf2 Nd3 Ra2 Rc8 b8R Ne1 Rb7 Rc6 Rf2 Nc8 Ra2 Be7 Rf2 Bd8 Ra2 Bc7 Rf2 Bd3 Qe3 Bde4 Ra2 Ne7 Rf2 Kd7 d6 Rh2 Ra2 Rc2 Nd5 Ke6 d7 Nc3 d8R Nd7 Rh8 Nf8 Rh5 Rd6 Rf5 Kd7 Bbc5 Rb6 Rf2 Ke6 Bd6 Kd7 Bh2 Ke6 Bg1 Kd7 Nb4 Kd6 Nd5+
qn6/2qrb2Q/4r3/rB2k2b/1QN1Bq2/4p1n1/Q1pQpBQp/K2RRN2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Ke6 d4 h5 Kd2 a5 Kc2 c5 b4 h3 Kb2 a4 b6 h2 d5+ Kd6 g5 e5 f5 e3 f6 e2 f7 e4 g6 h4 b7 h3 b5 Rh4 g7 Qc7 b6 Nf6 g8B Nfd7 Qb3 Rh7 Be3 Rg7 Nd2 Ke5 d6 Be7 f8Q Ra5 Bh7 Nf6 d7 Nh5 d8Q Ng3 Qg8 Bg4 Rd1 a3+ Ka1 a2 Bf2 c3 Qbc4 c2 Ngf3+ Kf4 Rg1 h1Q Ne5 h2 Bg6 Qf3 Qh7 Bh5 Qcg8 Rf7 Nec4 Rf6 Qd3 c1Q+ Qb1 Re6 Bf5 Nc6 b8Q Qg2 Qb7 Nb8 Qd5 Qf3 b7 e3 Bd3 Qa3 Bg2 Qa4 Nf1 Qa3 Ncd2 c4 Qgd8 c3 Nc4 Qg4 Bge4 c2 Qdg8 Qa4 Qb4 Qac6 Qd2 Qa6 Qc6 Qa8 Qa6 Rd5 Qgg6 Rd7 Qgg7 Nc6 b8Q Qh4 Qbb4 Nb8 Na3 Qg4 Bb5 Qf5 Qg4+ Ke5 Qf3 Qf7 Qg2 Qf4 Nc4+ Kf6 Kb2 a1R Qaa4 Ra3 Qab3 Raa6 Qa2 Ra5 Ka1 Nf5 Rh1 Rd3 Ng3 Rd7 Na3 Ke5 Rhe1 Qb6 Nf1 Ng3 Qbb1 Qc5 Qbb4 Qc7 Nc4+
1k3nq1/1BBb1r2/8/b1QN3K/Qppr1NR1/B5qR/1p2p1n1/1bB1BqN1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 g4 h5 a4 c5 d4 Kc7 f4 b5 f5 e5 d6+ Kb7 f6 c4 a5 h3 g5 b3 d5 b2 d7 e3 Kf3 h4 Kg4 e2 g6 e1Q f7 h2 d6 e4 g7 e3 Nc3 h3 Nce2 Rh7 Nf4 e2 Qd4 Ne7 g8N Ng6 Qc5 Nh4 Nf6 Ng2 N6d5 Be7 f8B Rf7 Ra3 Qg3+ Kh5 Bg5 Be7 Qg8 d8B Nd7 a6+ Kb8 Ba5 Nf8 Be1 Bd7 Rd3 Bf6 Rd4 Bh8 Re4 Bc3 Rd4 Ba5 a7+ Kb7 Re4 Rd8 Rd4 Bf5 d7 Bb1 Qc7+ Ka8 Ba3 b4 Re4 Re8 Rd4 Re4 Qc5 Kb7 d8B Ka8 Rd3 Rd4 Bc7 Kb7 Nf3 Kc8 Rg1 h1B Re3 h2 a8Q+ Kd7 Qac6+ Kc8 Qa4 Kb7 Bd8 Kb8 Rb3 Ne3 Bh3 Bg2 Bc8 Bh3 Bb7 h1Q Rg2 Qf1 Ng1 Bd7 Rd3 Qgf3+ Rg4 Ng2 Rb3 Q3f2 Rh3 Qg3 Bc7+
2BB3R/r3k1r1/4pRb1/N3KbRR/2qp1QqN/1qQpbp2/2R2nQ1/3n4 b - - 0 1 illegal: No proof kernel
bQb1Q1r1/Nq5p/R2b2pK/B2r1kn1/3NN3/2NBp1pR/5nrQ/4q1N1 b - - 0 1 illegal: No proof kernel
K3b1qR/2N1ppRN/N1n5/1pNBp3/3n2R1/bb1n3q/2r2Q1B/1Q2rN1k b - - 0 1 illegal: No proof kernel
Nn6/3p4/1q1p2KR/2pNqn2/2rb1R2/QB2p2B/Qbnk1NbN/B2N2r1 b - - 0 1 illegal: No proof kernel
1nQB3b/2BRb1Qb/8/r1pRp3/2n3k1/1B6/bB1RprpK/qbN1B2N b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 h4 Kd7 d4 c5 f4 g5 Kf2 b5 Kg2 g3 a4 e6 d6 e3 a5 b3 f5 b4 f6 g4 h5 e2 d5 b2 a6 b3 f7 Qe7 a7 Qg5 h6 Bb7 h7 Qg6 Ra2 Bh6 f8B Qf5 Nc3 b1B Ne4 b2 Qd4 Qf6 Rh5 Ne7 Nf2 Nf5 Nh1 Bg5 Bd2 Qe5 Be1 Be7 Bg7 Rf8 h8R Bd3 Bf6 b1B R8h7 Bc4 Rd2 Bca2 Bh8 Ba6 Rg5 Bad3 Qa1 Qc3 Rf7 Qc1 Qg7 Qc3 Rh5 Qa1 Rg5 Nd4 Rh5 Bh7 Re5 Nf3 Ref5 Kd8 d7 Ne5 Rh5 Kc7 d8B+ Kd6 Bc7+ Kd7 d6 Nc4 Rf3 Rf5 Rfd3 Rf3 Rhd5 Rf8 Nh3 Rf2+ Kg1 g2 Kh2 Be4 R3d4 Bg6 Nf4 Bh7 Nd3 g1B+ Kg3 Rf8 Bh3 Bh2+ Kg2 Be5 Nc1 g3 Bf5 Rf7 Bc2 Rf2+ Kh3 g2 Bb3 Bf6 Kh2 Ke8 Qg3 Kf7 d7 Bg7 d8B Kf6 Rd7 Kf5 Qc3 Kg5 R4d5+ Kh4 Qf6+ Kg4 Qf7 Bh6 Bd4 e5 Bb2 Bg7 Qf6 Bh8 Qf8 Nc6 Qf6 Rb8 a8Q Rb5 Qb8 Ra5 Qc8 Nb8 Qg7+
r2n1b1B/RBk1N1p1/r1B1p3/1Q1b3K/1r3R1p/npNq1rQQ/bQ6/3Q4 b - - 0 1 illegal: No proof kernel
qN1Q3R/bnb1p2B/1Bn2N2/Rn1R1K1b/p1R1R3/k1Q1r3/1np2Bp1/5r2 b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 h4 c5 b6 a5 b7 e3 d5 g6 h5 e2 d6 e1N h6 g3 d7 g2 h7 c3 Qc2 g5+ Kf5 c4 f4 g4 Rh5 g3 Nf3 g1N Be3 g2 Nbd2 Bg7 Ne4 Be5 Bd3 Qe8 Bf2 Bc7 Ne5 Ngf3 Nf6 Nc6 b8B a4 Bba7 Ba6 d8R Rc8 Qc1 c2 Bab6 c3 Ned7 Kb3 Be4 Be2 Nb8 Nd3 Rd5 Kb4 Qe3 c1B b3 Bb2 Re1 Ka3 b4 c2 b5 Bd4 Qd2 Nb2 Qc3+ Ka2 Bd3 Bd1 Re4 Nh6+ Ke6 Rf8 h8R Bc5 f5 Nf7 Rhh4 Qd8 Rc4 Nd6 Rhe4 Bd4 Nh5 Bc5 Ba7 Nce5 b6 Ne1 Nd7 Rb8 f6 Qe8 b7 Rg8 f7 Rd8 b8R Rg3 f8Q Nb5 Re2 Nc6 Bh7 Ned3 Ree4 Re3 Nhf6 Bh5 Rg5 Bd4 Rge5 Nc5+ Kf5 Nb7 Ra8 Bdb6 Qg8 Bd4 Bc5 Qf8 Ra5 Qe8 Bb4 Ba7 Bc5 Qf8 Bb6 Qe8 Nb8 Rd1 Na6 Qa8 Rd5 Rb1 Qd8 Rf1 Qe1 Kb3 Nb8 Ka3 Qc3+
BQ1nr1Bq/b3Rr2/6B1/p2p1Rq1/bkq1Bp1N/2q1Bn2/1p3Q2/1K1NQ3 b - - 0 1 illegal: No proof kernel
2qnNQRK/3BrRQ1/4p3/1N1q4/1kp1n1p1/br2N2b/2Qp2Q1/r2rQ1B1 b - - 0 1 illegal: No proof kernel
qb6/N1n1nb2/2p4K/1B1q1BRB/QB1pp1NQ/q3pk1r/2q3R1/B1r1N3 b - - 0 1 illegal: No proof kernel
QK1nQ3/4B2r/1p6/pnrn2pB/2N4k/1bR5/R1Bq1b1p/1B1nqQNB b - - 0 1 illegal: No proof kernel
2Q2bkN/1R1n1p2/1QN1Q1pq/1KR4r/4Q2n/B4pB1/2bpQnnq/4r2B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 d5 h4 a4 e4 a3 c4 g3 b4 f3 b6 g2 b5 a2 e5 Qd6 h5 Nh6 e6 Ng4 b7 Nh6 c5 Qb6 c6 Qa7 b6 Ke7 c7 Qa5 Nh3 g1Q Na3 Qg3 Bg2 Kf6 e7 Rg8 e8Q Qg6+ Qe4 Bf5 c8Q Nd7 b8Q Rh8 b7 Qc7 Nb5 Qh2 Rb1 a1N Ba3 Nc2 Nf4 Ne3 Qe2 Ra6 Qa7 Re6 Rhc1 Rh7 Bh1 Ng2 b8B Re7 Kc2 d3+ Kc3 d4+ Kc4 d2 Qb6+ Re6 Qca6 d1N Na7 d3 Kb5 d2 Rc5 Nf2 Nc6 Qg5 Ng6 Qgh4 Qg4 Bc2 Nh8 Nf5 h6 Qh5 Rb4 Nfh4 Bg3 Re3 Qe4 Qg6 Q2c4 Re1 Qce2 Qg5 Ng6 Rh8 h7 Qh6 Qa8 Rg8 h8Q Qg5 Qae8 Qh6 Qb7 Be7 Kc4 Bd6 Qbc8 Bf8 Rb7 Qe3 Qh6 Rh8 Kb5 Rh7 Nh8+ g6 Re5 Qg5 Rd5 Qh5 Qhe3 Kg7 Qb6 Kg8 Re5 Qg5 Rc5 Rh5 Q8e7 Qh6 Q7e6
1RqNQ1B1/2bppp2/1Q1B1n2/qRp4r/nR1N2n1/Kn2N2b/1r1N4/3N2k1 b - - 0 1 illegal: No proof kernel
B5kq/bN5n/bBpp4/2q2RQ1/NB1Rpr2/pN6/Q2Kp2N/1rn1N2n b - - 0 1 illegal: No proof kernel
5n2/1q4b1/k1b3BN/3B1bpQ/R1bq2B1/4BKbB/1nr1n1B1/R1B1N3 b - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 h5 b4 hxg4 d4 cxd4 Qd3 a5 Qe4 b5 Qxa8 axb4 Kf2 f5 e4 g5 a4 d5 h4 Kd7 c4 Kc7 h5 Kb6 h6 f4 h7 b3 e6 g3+ Kf3 b4 e7 d3 e8B d4 e5 g2 e6 b2 e7 d2 Bg6 d1Q+ Ke4 b3 e8B d3 Bd7 d2 Rh3 f3 Ne2 g1B Ng3 f2 Rh2 Nc6 Bg4 Nge7 Nf5 Bb7 Nh6 Bg7 Bg2 f1B Na3 b1Q+ Nc2 b2 B4h3 Rg8 h8B Bf2 Bg4 Qd6 Qe8 Bg3 c5+ Ka6 a5 Nd4+ c6 Ne2 Kf3 Qd4 Ne1 Q1a4 Qf7 d1N B4h3 Bc8 c7 Bd7 Bg4 Rb8 c8B+ Rb7 Qe8 Bf5 Be6 Rc7 Bd5 Rc2 B2h3 Bd7 Rf2 Bc6 Rg2 Kb7 a6+ Kb6 a7 Ka6 Bf7 Ng6 a8B Nf8 Bg6 Qba2 Be3 b1B Qf7 Nb2 Bc1 Qdb4 Rf2 Qac4 Rh2 Bc3 Bd4 Qb7 Bde3 Bg7 Bde4 Rd2 Qe8 Nf4 Be6 Qbb4 Rg2 Nd1 Bh7 Bb7 Beg4 Qd4 Qh5 Bc4 Bg6 Rb2 Rd2 Ne2 Kg2 Bbd5 Bc6 Qb7 Bef3 Bf5 Be4 Bde6 Bcd5 Bd7 Rc2 Bc6 Bef3 Rb3 Rca2 Rc3 Bfe4 Nb2 Bef3 Bf4 Kf2 Bh2 Bfg2 Bg3+ Kf3 Rc2 Rxa4+
3bR2r/1k2R2r/N2q2B1/4rpB1/3n1B1r/5b2/1BrBp1rB/K1BQN2n b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 f4 Qd6 e4 Qd7 e5 Qd8 e6 fxe6 f5 Bg7 f6 Bh6 Qf3 Bf8 Qf5 exf5 Kd1 Kd7 Kc2 a5 d4 e5 g4 h5 b4 c5 Kb2 Kc7 b6+ Kb7 d6 h3 d5 h2 f7 c4 g5 a4 b5 h4 d7 h3 g6 e4 d6 e3 g7 Nc6 Nc3 Nh6 g8Q Kb8 b7 Nb4 Be2 Qf6 d8B Nc6 d7 Be7 f8B Nd4 Qg4 Ra5 Na2 Qd6 Nb4 a3+ Kb1 c3 Na6+ Ka7 b8B+ Kb7 b6 Re5 Nf3 c2+ Ka2 Rh7 Re1 h1R Bg7 h2 Bbc7 Bh4 Bg5 Rg1 d8B h1R Bf4 Rg2 Bdg5 Bd7 Rb1 Bc6 Ka1 a2 Bb5 Be4 Be8 Bd5 Qh5 Ng4 Bg6 Nf2 Re2 Rhh2 Ne1 Bf3 Bd2 c1R B7h6 Kc6 b7 Rc2 b8B Nh1 Rb7 Rh3 Ra7 Rhh2 Ra8 Kb7 Bca5 Rh3 Bac3 Rh8 Bb2 Rh7 Bf6 Bg5 Bc7 Rh4 Re8 Rh8 Bbc1 Rh7 Bfg7 Bd8 Bhg5 Rc6 Kb2 a1R Bh8 Raa5 Bhf6 Rab5+ Ka1 Rc2 Bb8 Rh8 Bh2 Re7 Bfe5 Reh7 Bg7 Qf8 Bbf4 Qd6 Bge5 Ne6 Beb2 Nd4 Rf2 Re5 Rf1 Bc6 Qd1 e2 Rf3 Be4 Re3 Bf3 Re4 Rb5 R4e6 Re5 R6e7+
KR2q3/1Q1qq2q/2Rr1B1n/1pR3bB/R2r1Rn1/R6N/p1qkR3/4N2r b - - 0 1 legal: proof: b4 d5 h4 e5 f4 exf4 c4 g5 cxd5 gxh4 b5 b6 a4 Bf5 a5 Bc8 a6 Bb7 axb7 c6 Kf2 cxb5 Ke1 b4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 h5 d6 f5+ Ke5 a5 d5 h3 d7 h4 g5 b5 g6 f3 g7 b3 d6 h2 Ba3 h3 Nd2+ Kc3 Kd5 b2 e4 b1Q e5 f2 e6 a4 e7 f4 e8R f3 Re2 Nc6 b8R Nh6 g8R Ra6 Rg3 Qe7 d8R Ne5 d7 Qc2 Rdc8+ Kd3 d8R Neg4 Bg2 f1Q Rc5 Qe1 Bb2 a3 Rd6 a2 Bf6 Qe8 Rdc6 Be7 Rb1 Rg8 Rb4 Ra4 Rf4 Rg6 Qc1 Bd8 Kd6 Be7+ Kc7 Rd4 Kb7 Bd8 Bg7 Rgd6 Ka8 Bg5 Bf6 Qd7 Nc4 Qe8 Ne3 f2 Bf3 f1Q Ng2 Qed2 Qb1 Qfe1 Qb4 Qdd1 Qa5 Qdd2 Qc7 Qdd1 Qb7 Qe7 Re3+ Kd2 Ra3 Q1e6 Ra4 Q6d7 Be2 Qe1 Rga3 Qee8 Bd1 Q1e7 Ne1 Q7f8 Ne2 Qfe7 Rg1 h1Q Rg2 h2 Ng1+ Nf2 Be2 Nfg4 Rgf2 Qhe4 Nh3 h1R Rh2 Q4h7 Bf3+ Kc1 Re2 Kd1 Bd5 Kc1 Bf7 Kd1 Bh5 Kc1 Ree3 Kd2 Re2+
6q1/N1BrR1p1/NNq2Nn1/n2q2kN/1N3Rqp/3pr3/2npNQ1K/3B4 b - - 0 1 illegal: No proof kernel
2K2BB1/1B3b2/1bRb4/NN6/qkBrRbn1/1BQ3r1/2p1Bnb1/r1Bn2r1 b - - 0 1 illegal: No proof kernel
1R2R2R/Rq2R3/bR1r4/2pBNq1r/NBQ4R/3p1qb1/b1k4q/Kn1n2q1 b - - 0 1 illegal: No proof kernel
2B1nB1B/n1bbR1q1/n2B2p1/8/1NR1rBN1/k3n1Bn/3Q1p1K/Bbr4n b - - 0 1 illegal: No proof kernel
2b1nr1N/4k2q/2B1p3/3b1R1B/3BpQK1/bBBr1nBB/1b2R2b/1N3qb1 b - - 0 1 illegal: No proof kernel
BKR1rB2/4q3/2p1nBb1/RB1r4/2n1B3/N1p1bprN/2B1k1Qq/r1B3b1 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Kd7 Kg3 Kc6 Kf4 Kd5 h4 Kd4 e4 g5+ Kg3 f5 a4 b5 a5 c6 e6 b3 e5 b2 a6 b4 a7 c3 e7 b3 e8B Nh6 e6 Bc5 h5 Nf7 h6 Na6 e7 Rg8 h7 Nd6 Ra5 Nc4 Qc2 Nc7 Nh3 Ne6 Na3 b1R Bg6 b2 e8B Ra1 h8B+ Qf6 d3 b1R Qg2 Rb5 Bg7 Rab8 Bf8 Qe7 a8B f4+ Kf2 g3+ Kf3 Ba7 Be4 Rd5 B8g6 Bd7 Kg4 f3 Be2 Be8 Rd1 Rdd8 Kf5 g4 Rd2 Ke3 d4 Rd6 d5 Bf7 Bc2 Re8 Bf1 Rdd8 d6 Rg7 d7 Bb6 Qh2 g2 Be2 g1Q Qg2 g3 Bf1 Nb2 Ke5 Qh2 Bge4 Rg4 Bb5 Bg6 Qh1 Bc5 Rd3+ Ke2 Qg1 Rc8 d8B Be3 Qh1 Rc7 Qg1 Rd7 Qh1 Qb4 Bf6 Qe7 Qg1 Qf2 Qh2 g2 Qg3 g1B Qg2 Rg3 Rd4+ Ke1 Rda4 Rd2 Rd4 Rd3 Rd8 Ke2 Rc8 Qb4 Bd5 Qe4+ Kd6 Nc4+ Kd7 Rd2 Rd8 Qh4 Kc8 Qh7 Kb8 Qe7 Bde4 Rd5 Qh2 Qg2 Rc8 Qf2 Qh1 Qh2 Qg2+
n1n5/2kB1n1q/1n1NK2p/2B3r1/2BpQ1Bn/n1R3B1/N1p3r1/2B1bbRB b - - 0 1 illegal: No proof kernel
2NB4/B2R3b/k1r1n3/2BQb3/1q1qqNK1/nq1n2RQ/1Rbr2R1/7N b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 a4 exf5 a3 b6 a2 Ba6 Bxa6 b5 Bc8 b7 Nc6 b8Q Nxb8 Ke2 Kd7 Kf3 h5 g4 e5 d4 c5 d6 c4 g5 e4+ Kf4 c3 f6 c2 d5 e3 f7 h3 b6 h4 g6 h2 g7 e2 b7 e1Q Nd2 h3 Kg4 Qb6 f4 Nc6 b8R Nge7 g8N Na7 f5 Qb3 f6 Nec6 Ne4 Nd4 Ne7 Bg7 f8Q Qeb4 f7 Nab5 Nf2 Na3 Be3 c1N Ne2 Ra6 Rg1 h1Q Rg3 h2 Nf4 Qe4 Nh1 Be5 Qh6 Rc6 f8B Nd3 Qh3 Ne6 Ba7 Kd8 d7 Kc7 Rb1 a1Q d8R Qad4 Rb2 Ba6 Rbc8+ Kb7 d6 Bc4 d7 Ka6 Rgg2 Bb5 Rc7 Ba4 Nc8 Rh5 Bfc5 Rf5 Ng3 h1B Rg8 Rf7 d8B Rd7 Rgc2 Bg2 Nh1 Rdd6 Rd7 Bf3+ Kh4 Bg4 Rd2 Bf5 Rdg2 Bh7 Kg4 Qbd5 Rc7 Bc2 Rd7 Qdb3 Qdf3 Qee3 Qd5 Qee4 Rg6 Qdc4 Qd4 Ne1 Kh5 Qcd3 R6g3 Qdc3 Qe3 Rd2 Qd4 Nd3 Qd5 Qcd4 Kg4
4NrN1/1n2K2R/1Q4Q1/2r2b2/1BN1B1n1/3nQ1Rb/2nb1bb1/Q1q2kR1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 Kg3 e4 Kf2 g4 c5 g5 h5 b6 f5 g6 c4 d6 h3 b7 h2 d5 h4 d7 b3 Ke6 f3 d6 f4 e5 h3 g7 c3 Na3 c2 Bb2 c1B Kf7 Bd2 e6 Qb6 d8Q Rh5 d7 Bc5 e7 Nh6+ Kf8 Nc6 b8N Ng4 g8Q Na5 Na6 Nb7 Bc3 b2 Nc7 b1B Bg2 Bf5 Ne2 Qc6 Rg1 h1Q Ng3 h2 Ne8 Bd4 Bb4 Qc1 Qg6 Bb6 Re1 Qg1 Re3 h1N Nc4 Ba7 Qa4 Bc5 Rb3 Ke1 Ne4 f2 Qaa6 f1B Rg3 f3 N4f6 f2 Be4 Bg2 Ng8 f1N Qdb6 Nfe3 d8R Kf1 Rd7 Nhf2 Rb1 Nd3 Qa1 Rb8 Qb2 Be6 Qh8 Nh2 Nef6 Qh1 Qe8 Ke2 Qg7 Qa3 Qeg6 Beh3 Bf5 Nhg4 Rc1 Qh2 Rh1 Nc2 Rc7 Bf2 e8Q+ Be6 Qh8 Qc1 Rh7 Qhg1 Qhg7 Na5 Qga7 Nb7 Qa1 Nd8 Qe7 Kf1 Qec5 Bd7 Be4 Nb7+ Ke7 Rf8 Qe3 Rc5 Ne8 Bf5 Rxg1+
3kr1RQ/b2N2r1/R6K/1N5R/Qrn3Br/Q2p3R/1N1r4/1Bnnbq2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 b5 d4 f5 exf5 c5 a4 b4 a6 cxd4 Bf4 Bb7 Bd6 Bc6 Bh2 Bb5 axb5 Qc7 b6 Qd8 Bg3 Nc6 Bb8 Nxb8 Ke2 e5 Kf3 d5 Kg4 d3 Kh5 h3 g4 h2 f4 h6 c4 e4 g5 d2 b7 b3 g6 b2 a7 e3 c5 e2 g7 e1B c6 d4 f6 Na6 b8Q Ne7 g8R Nc5 c7 Nf5 c8B Ne3 f5 Nb3 Ra6 Nc4 Na3 b1R Nb5 Rh7 Ne2 Rg7 Nf4 Nc1 Bd3 Rb4 Qa4 d1N Bb1 Qc7 f7+ Kd8 Nd3 Qf4 f6 Qf1 Nb2 d3 Qe5 Rb8 Bg4 Ra8 Rg1 h1R+ Qh2 Rb8 a8Q Rc8 Qh4 Rh2 Rg3 Rd2 Rh3 Rb8 Rh8 Rc8 Rh7 Bc5 f8N Bd4 Nd7 Ba7 Qf2 Rb8 f7 Rc8 Kh4 h5 f8R+ Ke7 Qh1 Re8 Rg8 Kd8 Qh2 Rf7 Kg5 h4 Kh6 Rg7 Re3 h3 Qf8 Bf2 Qe5 h2 Rh3 h1R Qc3 Be1 Qca3 Rg5 Rh5 Rh4 Qg7 Kc8 Qh8 Kd8 Re7 Rg7 Re3 Rhh2 Rg3 Rh4 Rh3
n4qnQ/N7/5Qr1/rqNnB1k1/N1bKb1B1/N1R2bp1/Q4BR1/5n2 b - - 0 1 legal: proof: b4 a5 bxa5 e5 f4 exf4 g4 b5 c4 h5 a6 d5 cxd5 hxg4 a3 Bxa3 a7 b4 Nxa3 Qd7 Nb1 Qd8 Kf2 Ke7 h4 Kf6 e4 g5 d4 c5 d6 b3 h5 b2 d5 f3 Ke3 c4 d7 g3 d6 c3 h6 g2 e5+ Kg6 e6 f5 e7 g4 e8Q+ Kg5 h7 f4+ Kd4 c2 Ra3 f2 Rc3 g3 Rh2 Bb7 Ne2 g1Q Be3 c1N Na3 b1B Bh3 f1N Bg4 Bf3 Bf2 Na2 Rg2 Bbe4 Qa1 Nb4 Qe6 Qe8 d8N N8a6 d7 Nc7 Qea2 Qf8 Nb7 Nbd5 d8N Qh1 Nc6 Qh5 Nc5 Qhe8 Nd8 Qb5 Nc6 Nh6 Na5 Rg8 h8B Rg6 Nc6 Ng8 Bg7 Rc8 Be5 Na8 Nc1 Rb8 Na4 Rb6 Nb3 Ra6 Nbc5 Ra5 Nb6 Bd1 Nba4 f3 Bg1 f2 Q1b2 Nab6 a8Q Bdf3 Qc8 Na8 Na7 Nd2 Qe8 f1B Bf2 Bc4 Qf7 Nf1 Qh7 Qb6 Qh8 Qc6 Qb6 Qb5 Qbf6+
r4RKN/bbkN2p1/3pRBqq/1N2n3/1N6/B1Qpn3/1QQ1p3/2r3R1 b - - 0 1 illegal: No possible last move
5N1K/n2R1B2/b1rRq2b/1B4Qb/qR1r4/2q2k2/b2n1B1Q/1bQN1Q1r b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 c5 e4+ f3 g3 f5 d6 h5 b6 h3 b7 f4 d7 c4 d5 c3 d6 c2 Qd2 h2 Bb5 f2 Ra6 f1B Nf3 b3 Ng5 h4 Ne6 b2 Nc3 b1B Nd1 Bh6 Nf8 Qb6 d8R f3 d7 f2 Ra7 Kf3 g4 h3 g5 Qa5 g6 Be2 g7 Nf6 g8B f1B Bf7 Qa4 Qe1 Ba2 Be3 c1Q Bf2 Qc3+ Kf5 Rg8 e5 Rg6 e6 Nc6 b8Q Ne4 e7 Nd2 e8Q Ba6 Qc8 Rg4 Qe5 Rd4 Kf6 Bg2 Rc7 Na7 Qf1 Bd3 Rc4 Bdb1 Rb4 Rb8 Rg1 h1R Qh2 Ra8 Qcc7 Rc8 Qcc4 Qcb3 Qc1 Qc3 Qc4 Bf1 Rg6 Bfd3 Rg7 Bg6 Qf1 Bh5 Rg6 Be3 Kg7 Bh6+ Kh8 Rc6 Qe5 h2 Rd6 Rg1 Qg5 h1Q Qe5 Qh3 Qh2 Rb6 Ra8 Qe6 d8Q Rc6 Qg5 Rh1 Rad8 Be4 R8d7 Bf5 Qc4 Bfb1 Qf1
nb3bk1/2B1b2N/2RRq2r/KN2QQ1r/2qQ4/b6Q/3n2B1/2qRrn1B b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 h5 b4 d5 c4 f5 e4 Kf7 b6 a5 g5 d3 Kc3 a4 b7 d2 e5 f4 b5 a3 b6 h4 c5 f3 Kb4 d4 Ne2 g1B Rh3 d3 Nf4 a2 Nc3 g2 Qa4 d1Q Nb5 d2 Ng6 f2 Rd3 h3 Rd6 h2 c6 h1R c7 Nd7 c8R R1h5 b8Q Bh2 b7 g1B Bg2 f1N Rc6 Ngf6 e6+ Kg8 e7 R8h6 e8B Qc7 Qc8 Ne4 b8Q Nb6 Qh3 Qe2 Qaa7 d1Q Ka5 Bg3 Bf4 Ned2 Qbc8 B1f2 Qcf5 Qe6 Bd7 Qde2 Rd1 a1B Bh1 Be7 Nf8 Bb2 g6 Ba3 g7 Q2c4 Nh7 Re8 Bc8 Bh2 Bb7 Na8+ Qb6 Qcc8 Qd4 Qc1 Qde5 Bfc5 Qd4 Qec4 Qfe5 Q8e6 Bg3 Kf7 Bg2 Bf8 g8Q+ Ke7 Qef5 Bb2 Rd5 Qd6 Bh1 Bba3 Ra6 Qf6 Qh8 Kf7 Rd8 Re1 Bbg2 Bce7 Bb8 Bf4 Rc6 Bfd6 Qfd3 Qg6 Qhe5 Qge6 Qdf5+ Kg8 Rd7 Bdc5 Rd8 Ba7 Bc7 Bb8 Rdd6
1rQ1N3/KN2nR2/6QN/2R5/b3r3/1Br1rB2/2nqRb1Q/1kr1nbrN b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 Ke7 Ke2 Kf6 Kd3 Ke5 Kc4 a5 h4 c5 d4+ Kf4 e5 Ke3 h5 f5 d6 g5 d5 g2 b6 g3 Kb5 c4 b7 a4 d7 a3 d6 f4 e6 f3 h6 g4 b4 a2 e7 f2 e8B c3 h7 c2 Nh3 g1N Rh2 c1R Bc4 f1B Nd2 g2 Bh5 g3 Nf2 Nh6 Bf3 Ra7 Nde4 Nc6 b8Q Rc7 Kb6 Nf5 b5 Qg5 d8R Bd7 Rc8 Nfe7 Nf6 Nd4 Nh1 Nc2 Bb3 Rc3 Ka7 Qh6 b6 Ba4 Rb1 a1R b7 Ra3 d7 Qf4 Qe1+ Kd3 d8N Qd2 Ne8 Bh6 Rc4 Be3+ Rc5 Bf2 Qe6 Re1 Qh6 Re4 Qc8 Rf8 b8Q Rg8 Bg4 Nf3 h8N g1R Nhf7 g2 Qg6 Nfe1 Bf3 Rh8 Nh6 Rf8 Ng3 Rh1 Qe5 g1R Nb7 Ne3 Bg4 Rc1 Ba2 N3d5 Rb6 Rh8 Qcc7 Nb4 Nf6 Rac3 Bb3 Bd4 Re2 Rh3 Nh1 Rb8 Ne8 Bf2 Qc8 Rhg3 Rf6 Re3 Bg8 Kc2 Bf3 Kb2 Qh2 Nbc2 Bb3 Kb1 Rf7
1B5q/n2Q1rRn/3KQk2/2n1rb1b/1n2B1B1/rN1Q3Q/3R3R/br3Nb1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 f5 d4 c5 e4 h5 g4 b3 e5 c4 e6 b2 b6 c3 g5 c2 g6 h3 g7 h2 d6+ Kf6 e7 h4 e8Q h3 d5 Rh5 b7 Nc6 b8R Ra3+ Bd3 Na7 d7 Bc5 Be3 c1B Nd2 b1R d6 Bb2 Ra2 Ba1 Ne2 Bcd4 Re1 h1N Qb3 h2 Be4 Ng3 Nf1 h1N Nc1 Nf2 Rd1 Nd3 Rh2 Nb4 Rb7 Rg5 Bd2 Bg1 Be3 Rh5 Rdd2 Rg5 Qh5 Qe8 Qh4 Qh5+ Qg4 Qh8 Qh3 Rh5 Qd5 Rg5 Nb3 Rh5 Bc2 Ne4 Bb6 Nc5 Be4 Rg5 Bc7 Rh5 Bb8 Rg5 Qc4 Rh5 Kg2 f3+ Kg3 f2 Kf3 f4 d8Q+ Ne7 g8B Bf5 Qb6 Ng6 Qd3 Nf8 Be6 Nh7 Rg7 Rg5 d7 Rh5 Kg2 f3+ Kg3 Rg5+ Kf4 Rh5 Ng3 f1B Qba6 Bg2 Nf1 f2 Qc8 Bf3 Qe8 Bg6 Bg4 Re5 Qc8 Bf5 d8Q+ Re7 Qd8d7 Re5 Ng3 f1R Qg8 Rf2 Nf1 Bd1+ Ke3 Bg6 Be6 Bdh5 Bg4 Kg5 Qge6 Rf7+ Rhf2 Rb2 Kd4 Rb1+ Kc4 Bb2 Rh2 Ba1 Qed5 Kf6 Q5c6+ Re6 Qcd6 Bf5 Qb6 Nbc6 Kd5 Ree7 Qba6 Re6 Qac4 Re5+ Kd6 Nb4 Qce6+
Qb2rR1Q/BB2QNRR/2N1nq1r/4b3/1n2R3/2b1r1nB/3p3K/1k4nn b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 e4 Ke7 b4 Kd6 c4 Ke5 g5 h5 c5 a5 b6 d5 g6 f5 b7 f4 b5 a4 g7 a3 b6 f3 c6 h4 c7 h3 c8Q h2 Qa4 f2+ Ke2 d3+ Kf3 d4 Qad7 a2 Kg4 d2 Kf3 d1R Ne2 g1B Kg2 d3 Be3 d2 Nbc3 Re1 Nb5 Nh6 g8B Bd6 Bd5 Nc6 b8R Nf7 b7 Rh6 Ned4 Qf6 Qh8 Nfd8 Qe7+ Ne6 Rf8 Re8 b8Q Nb4 Qa8 Bb8 Bb7 Re2 Rb1 a1B Nd6 Bc3 Ra1 Re1 Ra7 Re2 Nb3 Re1 Na5 Re2 Bc5 Re3 Nf7+ Kf4 e5 Kf5 Bb5 f1N Nc6 Ke4 Be2 Bf2 Bg4 Kd3 Bh3 Kc2 Rg1 h1N Bd4 Nd8 e6 Kb1 Bc5 Re4 Bb6 Bfd4 Bc5 Nf2 Rh1 Bde5 Kg1 g2 Be3 Ng3 Kh2+ g1N Ra5 Bed6 Ba7 Rhh4 Qd7 Qe5 e7 Qb5 Kg2 Qg5 Bg4 Qf6 Rg5 Re3 Rg7 Rh3 Rh2 Nfh1 Be6 Rh7 Rh6 Bf4 Bh3 Bfd6 Kh2 Bf4 Rfg8 Rf8 e8R Bfd6 Re7 Re8 Re4 Bde5 Rf8 Ne6 Rhh4 Rh5 Qe7 Rh7 Rhg4 Rh5 Rh7 Rh6 Rgg7
b4K2/1p1qnB2/Rb1Q1QR1/N1B3N1/N2n2rr/8/Br1n3k/nR1B2bn b - - 0 1 illegal: Other
4n2q/b2B2q1/K2N4/1QBkBbr1/5q1n/1QQNNb1R/3bbpr1/4R1B1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Ke7 Ke2 Kd6 Kd3 c5 Kc4 h5 d4 f5 g4 h3 b6 b3 Kb5 c4 b7 c3 g5 f3 g6 f2 g7 h4 Qd3 f4 Ra3 f3 Ne2 h2 Nf4 b2 Bh3 f1B Be3 c2 Nd2 c1B Bg1 Nd7 b8B+ Qc7 Qe2 b1B Nd3 Ne7 g8Q Nf6 Bd7 h3 Qe3 Ng6 e5+ Ke7 e6 Kd6 e7 Bb7 e8Q Be2 Ba7 Nh4 Rc3 Bc6+ Ka6 Rh5 Qb8 Rf5 Qb5 Ne8 Ra3 Qb8 Qh8 Rg5 Nc4+ Kc7 Qg8 Bd2 Ra1 Bc2 Re1 Bc5 Qg7 Qd8 Qh8 Qe7 Qe6 Qg7 d6+ Kd8 d5 Rc8 Nc1 Bf5 Nd3 Rg2 Bb8 Ba7 Qe3 Ba8 Qe6 Rc5 Qe3 Qg3 Qc3 Qf4 Qcb3 Bc6 Qd4 Ba8 Qdc3 Bc6 Bc8 Ba8 d7 Ke7 d6+ Ke6 d8B+ Kd5 d7 Bc6 Bb6 Ba8 d8N Bc6 Bd4 f2 Bde5 Ba8 Bd7 Bc6 Rhg1 h1Q Nf7 h2 Nfd6 Ba8 Rgf1 Qg1 B8c7 h1Q Bb8 Bf3 Re3 Be2 Re1 Nf3 B8c7 Qh8 Bb8 Nh4 Rh3 Qg5 B8c7 Qgg7 Bh2 Qh1 Bg1 Qh2 Nc8 Qf4 Be5 Bc6 N8d6 Be6 Nf7 Ke4 Bf6 Rcg5 Bc5 Bg4 Be5 Bf3 Bg4 Bd7 Nfd6+ Kd5 Bf5 Be6 Bg4 Bf7 Bf5 Bg6 Bd7 Bf5 Ne3#
1qNRRr2/Q1Nbb3/1n4Bp/B2RnN2/5Q2/kb1R1b2/5qq1/1bKQr3 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 g4 Ke7 d4 Kd6 Kd2 c5 e4 f5 b6 h3 g5 h2 g6 h6 b7 b3 g7 b2 Ra7 f3 Na3 b1B Ne2 f2 Ra5 c4 Ng3 f4 Bd3 Ne7 g8N Ng6 Ne7 Nd7 b8Q+ Qc7 Rc5 f1Q Qa7 f3 Ra5 Nb6 e5+ Kd7 e6+ Kd6 Rg1 Ne5 Bg6 h1B Qa4 Qh3 Rd1 f2 Bb2 f1B Bc3 Qb8 Kc1 Rg8 Rd3 Qg2 Rb5 Rh8 Ba5 c3 Qd1 c2 Qd2 Bd7 Qf4 Qf2 Rc5 Bf3 Rb5 Qb7 Ngf5+ Kc7 Nc8 Be7 d6+ Kc6 Rd5 Re8 Nb5 Qb8 Nc7 Qg2 Rd1 Bc4 Rd2 Bb3 Rd3 Bd8 e7 Rf8 e8R Be7 Rb5 Qf2 Rb4 Qg2 d5+ Kc5 Rbd4 Qf2 Qb7 Ra6 Qa7 Qg2 Bc3 Ra1 Ba5 Bda4 d7 Qf2 d8Q Bd7 d6 Qg2 Na6+ Kb5 Bb4 Ka4 Be1+ Ka3 Rd5 Bb5 d7 Bc6 Qdc7 Ba4 d8R Bd7 Ba5 Qf2 Rd1 Qg2 Qcc4 Qf2 Qe2 Qg2 Kd2 c1Q+ Ke1 Qb2 R1d3 Bc2+ Kd2 Re1 Nc7 Qd4 Rc5 Bb1 Rd5 Qh3 Qd1 Qf2+ Kc1 Qhh2 Rd2 Qhg2 R2d3
4RBb1/KR1r1Rrn/2kn1pqQ/2n1b3/7n/1N2Q3/1q1Q1n2/R2NNBr1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 g4 c5 e4 h5 d4 c4 d6 c3 d5 b3 e5 f3 Ke3 c2 Kd4 f2 Kc5 b2 g5 h3 g6 h2 g7 h4 b6 h3 b7 Na6+ Kb5 Qe8 Kb6 Nf6 g8R Bg7 b8Q Rh7 Qe1 Nc5 Nf3 Ra7 Bh6 c1Q Nc3 b1N Rf8 Na3 Qe3 Nb5 Ne1 Qb2 Nd1 Ba6 Rg1 h1N Qa8 Bh8 Rg7 h2 Qb8 Ng3 Qb7+ Kd8 d7 h1N e6 Nf5 Qc6 Nh4 Qd6 Bc8 Qh2 Ke7 d8N Rd7 Nb7 Nd6+ Ka7 Ng2 Rg4 Nh4 Rb4 Rg7 Qhf4 Nh7 Rb5 Rd8 Na5 Rd7+ Rb7 Kd8 Nb3 Ke7 Bb5 f1R Be2 Rfg1 Bf1 Nf2 Qh2 Ndf5 Qhh3 Kd6 e7 Rg8 Qh2+ Be5 Bg7 f6 Rf7 Nh6 Qh1 N6f5 Bf8 R8g7 Qh2 Rc7 Qhf4 Be6 Qh6 Kd7 d6 Kc6 d7 Nd6 d8Q Rd7 Qa5 R7g5 Rg7 Bg8 Qad2 Qh5 Rf7 Rg7 e8R Qf5 Qdd3 Qg6 Qdd2
1BR2kq1/3qbB2/K1pr4/n1R1bQqN/6B1/NR1nQ3/1b4N1/1R2bbr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Qb3 g2 Qg3 fxg3 Nb1 Rh7 Ra4 Rh3 Ra1 Rh8 d4 f5 Kd2 g5 Kc3 a5 Kc4 g4 h4 f4 b4 f3 e4 f2 e5 a4 d6 a3 e6 a2 d5 Nf6 d7+ Ke7 b6 Ra4 Kb5 Rh5 b7 Ra7 Nf3 g1Q Bf4 g2 Ne1 g3 Na3 Ng8 Rb1 a1B Be2 Ra6 Bg4 Rh7 h5 Rh6 d6+ Kf6 e7 Kg7 e8B Rg6 Bf7 Nc6 b8Q Bd4 Qa7 Be5 Qe3 Qg5 d8Q Na5 Qd7 Nh6 Qf5 Be7 d7 Kf8 d8N Rad6 Rc1 Be6 Rc5 c6+ Ka6 f1Q+ b5 Qd3 Rh3 Qd4 b6 Ba2 b7 Bc4+ Ka7 Qd1 b8R Bf1 Rb1 Qd5 Kb6 Qe6 Ka7 Qd7+ Kb6 Nc4+ Ka6 Na5+ Bc4+ Nf7 h6 Rg7 h7 Rg8 h8R Bb2 Qfe6 Ne5 R8h7 Nd3 Bb3 Qh2 Rg7 g1B Ng2 Bf2 Qg6 Qh1 Bf7 Be1 Qf5 Qg1 Be5 Rd4 Bb8 Rd6 Nf4 g2 Nh5 Qf2 Rg3 g1B Rf3 Qg2 Rg3 Bef6 Rh3 Bh2 Ne6+ Ke7 Rf3 Bhe5 Nef4 Kf8 Rg3 Qg1 Ng2 Be7 Qe2 Nf4 Rb3 Nd3 Qe3 Qh2 Ng3 Qh7 Nh5 Qh8 Rh7 Rgg6 Rg7 Qg8 Be6+ B7f6 Ngf4 Rh6 Ng3 Rh1 Ng2 Qdf7 Nh5 Rg1 Bc4 Qe6 Rc7 Qd7 Bf7 Be7 Rc8+
4b1N1/r4Qr1/np1k1nbq/qR2nQ1n/N6B/Q1n4R/BBK4R/5Q1r b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 a4 Ke7 e4 f5 d4 h5 Kd2 c5 a5 b6 g6 g2 g7 f4 e5 g3 e6 h4 a6 b3 a7 b2 Nh3 g1N Kc2 f3 Ra2 f2 Nc3 b1N Ng5 h3 Nf7 c4 Nh6 h2 Na4 g2 Bb2 c3 Bc4 Nf3 Qf1 Nf6 g8Q g1R Qg6 Na6 Qf5 Bd7 Ng8+ Kd6 e7 Ne5 e8Q Rg7 Qf7 Be8 Ra3 Qd7 Ba2 Qb5 Rb3 Qa5 Rb5 Rd8 a8Q Rd7 Rg1 h1B Rg2 Ra7 Rh2 Bf3 Rh3 Bh5 Rh2 Bd7 Rh3 Bg6 Qaf8+ Kc7 d6+ Kc6 Q8e7 Be8 d7 Rh6 d8B Rh4 Qb7+ Kd6 Qf3 Rhh7 d5 Rh4 Q1d1 f1N Qe1 Ng3 Qef1 Rh6 Qe3 Ngh5 Be7+ Kc7 d6+ Kc6 d7 Rhh7 Kc1 c2 d8R Nc3 Rd2 Kc7 Rdh2 Rh6 Bd8+ Kd6 Ba1 Rhh7 Kb2 c1Q+ Kb3 Neg4 Bb2 Ne5 Qg3 Qh6 Kc2 Nd1 Qgb3 Nc3 Qa3+ Qb4 Qf2 Nfd7 Bg5 Nf4 Qf1 Nf6 Rh4 Qh5 Rf2 Rh6 Qab3 Qa5 Rh1 Qh3 Rg2 Qe3 Rf2 Rh3 Bh4 N4h5 Rg2 Qh6 Re2 Rg3 Rh3 Rg1 Reh2 Rh1 Qa3+
B5b1/KN2Rr2/1pq1b2Q/QQ1qbnqr/3k4/R5qq/4RN2/R2nN2B b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 h6 g4 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 Ke2 Kd7 Kd3 Kd6 Kd4 f3 h4 f2 a4 g4 h5 c6 g7 g3 f6 b3 a5 g2 f7 b2 a6 Be6 h6 Nd7 a7 Ne5 h7 Nd3 Nc3 b1B Rh2 Nb2 Qe2 Nd1 Nf3 g1Q Bg2 Nh6 g8R Ba2 Bh1 Qg5 Qb5 f1Q Rg7 Qh3 Re2 Bc4 Ne1 c5+ Ke4 Bb3 d4 c4 Ra3 Rc8 a8B Nf5 Ra1 Rc5 Ra3 Rg8 h8Q b6 Qh5 Rc7 Rh7 Bg7 f8Q Be5 Qfh6 Rh8 Qa5 Nde3 Nd1 c3 Nf2 c2 Qe8 c1Q Qeb5 Qc6 Kd3 Kd7 d6 Bg8 Rg7 Bbe6 d5 Nd1+ Ke4 Rb7 Ra1 Qf6 Rg3 Qg5 Rga3 Rc7 Qg7 Rh5 Qh6 Ke8 d7+ Kf7 Bb7 Qa8 d8R Rd7 Re8 Qd8 Qh7+ Kf6 Ba8 Rc7 Rf3 Qdd7 Kd3 Ra7 d6 Qdb7 d7 Qd5+ Kc2 Qbc6+ Rc3 Rc7 d8N Bh2 Qc5 Bd6 Re4 Bg3 Rca3 Bef7 Nb7 e5 Ned3 Be6 Qh8+ Rg7 Re7 Bh2 Qh7 Rf7 Qc4 Bf4 Kb3 Bg3 Kb4 Bf4 Re3 e4 Ne1 Bc7 Qh6+ Ke5 Qca6 Kd4 Qf1 Qe5 Qe2 Qeg3 Ng2 Be5 Qf1 Qc1 Kb5 Qc6+ Ka6 Qf3 Ka7 Qfg3 Ng4 Qf3 Rec3 e3 Qfb5 e2 Re3 e1Q Re2 Qeg3 Nf2 Qfd5 Ne1
q1R4q/Rn2BK2/1NQ3rr/N4n2/2N4Q/Qq5k/Rr2pB1n/1r1bbN2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 f4 g5 g4 gxf4 g5 h6 Be2 h5 Bg4 hxg4 Ke2 Kf7 d4 Kg6 h4 Kf5 b4 e5 b6 a5 g6 c5 h5 c4 d6 c3 b7 c2 d7 a4 b5 f3+ Ke3 f2 d5 f1Q d6 a3 b6 g3 h6 g2 g7 a2 h7 Ra3+ Qd3 Kg4 Ne2 g1R Nd2 Qf5 Rh2 Ne7 Nc4 Rb3 Ng3 Na6 b8N Qe6 b7 Nc5 Nf1 Rb2 g8Q+ Bg7 Bd2 c1R Nc6 Rcb1 b8N Nb7 Be1 Qd5 Rg2+ Kh3 N6a5 Qf7 Rd2 Rg6 Qa3 Qd5 Bf2 Nf5+ Ke2+ e3 Qe6 Qf8 d8Q e4 d7 Bc3 Qc6 Qff7 Rc2 Be1 Qg5 Qf6 d8B Qb5 Nd7 Qb3 Ndb6 Bd7 Qc8 Ba4 Qc6 Qf8 Be7 Qa8 Qf4 Rh6 Qb5 Rg8 h8R Rg6 Qc6 Rd1 Rc1 a1Q Rh7 Qh8 Rd2 Qa8 Rc3 Rdb1 Qg5 Ra2 Rcc2 Q1h8 Rd8 Rab2 Rc8 Ra1 Rd2 Rab1 Qh4+ Kg2 Rf8 Qc2 Re8 Rb5 Qe6 Nc5 Bg1 Bf2 Bf8 Qa2 Qhe7 Kh3 Qc6 R5b4 Qef6 Bg3 Ra7 Nb7 Be7 Bf2 Ng3 Bc2 Rc8 Bd1+ Kf1 Qc2 Qd4 Qa4 Ra2 R4b2 Qdf6 Qb3 Qd4 Be1 Bf2 Bc3 Kg1 e2 Kh1 e1N Nf1 Nf3 Qdf6 Kg4+ Kg2 e3 Qd4+ Kh5+ Kh3 e2 Qde4 Be1 Qd4 Ne3 Qf4 Nh2 Qd4 Rd6 Kg3 Rde6 Kf4 Reg6 Qdf6 Nf5 Ke5 Kg4 Ke6 Kh3 Kf7 Rh4 Qd4 Rhh6 Qh4+
bBnN3B/3q1b1Q/1NRB1qQ1/5brQ/K1R2n1N/5q2/n1Qp1b2/3r1k2 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Kd2 Kf7 b4 e5 h4 d5 c4 a5 Kc2 f3 Kb3 f2 g6+ Kf6 g7 f1B c5 e4 b6 Ke5 c6 a4+ Ka3 d3 c7 Kd4 h5 g3 f6 g2 b7 d2 f7 Kd3 h6 d4 h7 e3 Qh5 d1B Qf3 Bb3 Qc6 e2 Qg6+ Bf5 c8Q e1Q Qd7 Bc5 f8B Na6 b8Q Qf2 Qde8 Ne7 g8Q Qd7 Qbc8 Bf7 Nd2 Qf3 Rh4 Rb8 Bg7 Rb5 Nc4 Ba7 Qc5 Nc8 Bf4 Ra5 b5 Nb4 b6 Na2 b7 Bb6 Nh3 g1N b8B Ne2 Rc1 Bg2 Bfd6 Nf4 Ng5 Rb5 Ne6 Ke2+ Rc3 d3 Nd8+ Kf1 Qh5 Ba7 Nb6 d2 Qe6 Rb1 Qeg6 Rd1 Qc6 Bh1 Qe4 Bg2 Qc2 Bh1 Bge5 Bg2 Q8g7 Rg8 h8N Bh1 Q7h7 Bg2 Qe6 Rg5 Ng6 Bh1 Bh8 Bg2 Kb2 a3+ Kb3 Bh1 Na8 Bf2 Nb6 Nc1+ Kb4 a2 Rc6 a1Q Qee4 Qg7 Ka4 Na2 Rg4 Qf6 Nh4 Bg2 Qe8 Bh1 Qeg8 Bg2 Qgg6 Qe4+ Ka5 Ne2 Rc5 Qeb7 Rd4 Nf4 Rdc4 Qe4 Rc7 Qe3 R7c5 Ba8 Rc6 Qf3 Ka4
1R5K/4NNBQ/brq1nn1n/1Rb5/1B4p1/Nq3Qk1/R1r2b2/1qBR2n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 Kd6 d4 g5 Kd2 f5 Kc3 c5 e4 a5 e5+ Ke7 b6 c4 b5 f4 e6 Kd6 e7 f3 e8Q a4 b7 a3 b6 f2 h5 f1N h6 a2 h7 g4 Nf3 g1B Ne5 g2 Ng6 Qd7 Qf7 Be3 Ne7 g1N Qdf3 Nd2 Na3 Na6 b8R Qc6 b7 Nh6 Qg7 Rg8 h8B Nc5 Qh7 Bf2 Bg7 Ra6 Rh2 Rh8 Rb1 Rg8 Rb5 Rb6 Rg2 Ne6 Rh2 Kc7 d6+ Kd7 d5 a1Q+ Bb2 Qd1 Bc1 Nf1 Rg2 Ng3 Rh2 Nh5 Rg2 Kd8 d7 Kc7 d8N Nf6 d6+ Kd7 Nf7 Qb3+ Kd2 c3+ Kd3 Nd4 Rh2 Ke6 d7 Rh8 d8R Rg8 Nf5 Bc5 Rd5 Rd8 Ne7 Rd7 Rg2 Rc7 Rd7 Be1 Ke3 c2+ Kf4 Bg3+ Kg5 Bf2 Nd6 Ke5 Kg6 Ne6 Rd8 Bg3 Rd2 Bf2 Rd1 Ra6 Ra8 Rb6 b8B Bb7 Ba7 Ba6 Rdb8 Rbb7 Bb6 Rc8 Ba5 Rb6 Bb4 Rc7 Bcd2 c1Q Ra7 Qcb2 Bc1 Rc8 Qh3 Q2a2 Nf7+ Ke4 Qf1 Kf3 Qe2+ Kg3 Qf3+ Kh4 Rad7 Qab2 R7d2 Qa1 Ra2 Qab1+ Qf5 Kg3 Qe4 Rd8 Qf5 Rd2 Qe4 Rc2 Qf3+ Kh4 Qg8 Nd7 Kh7 Nf6+ Kh8 Rc3 Qe4 Kg3 Qgh7 Rc2 Qf3+
1Nq5/5R1N/b7/2np1n1K/B1n1r2Q/6Qq/2Brkb1R/nNr1qRBB b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 c4 e5 c5 d5 g3 h5+ Kh3 d3 b6 d2 c6 Ke3 g4 b3 c7 e4 g5 b2 b7 Ra2 g6 Bc5 g7 Ne7 g8B Nd7 b8N Ba6 f6 Nf5 f7 Qc8 Bh7 Re8 f8R Bd4 Bg6 Nc5 Bg2 Kd3 Qg4 d1N Nf3 e3 Rf1 e2 Rf7 e1N Ng5 Nc2 Qg3+ Ke2 Be3 Re4 Bg1 Bf2 Nh7 Nde3 Bh1 Nc4 Bh2 Ra3 Bg1 Rd3 Ra4 Na1 Ra2 Ng7+ Bf5 Rd2 Bd7 Nf5 Ba4 Qd7 c8B Qc7 Na3 b1R Be6 Rc1 Nb1 Qb7 Bed7 Qc8 Bc2 Qf8 Bda4 Qc8 Kg2 h3+ Kh2 Ng7 f5 h4 f6 Nf5 Re7 Re5 f7 Re6 f8Q Re4 Qf6 Nce3 Bg2 Nc4 Kh1 h2 Rf7 Re8 Bge4 Re7 Kg2 Re5 Kh3 h1Q+ Kg4 h3 Bab3 h2 Kh5 Qg2 Qd8 h1Q+ Qdh4 Qgh3 Bg2 Re4 Ba4 Q1h2 Bh1 Q2g2 Qa3 Qgg3 Qb3 Be3 Rb2 Qe1 Qa3 Bd4 Qg3 Bf2 Qg2 Rd3 Rb4 Ke3 Bcb3 Rdd4 Qg8 Kd3 Rb6 Be3 Rg6 Ke2 Rg2+ Bf2 Bc2 Rd3 Qg3 Rd2 Rh2
rqN1R1r1/5R2/N1Nb2kq/1NpB1Q2/1B2qR1Q/8/3bbnr1/Kn1q2B1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 e4 g5 d4 f5 Kd2 Kf7 Kc2 c5 Kb2 b3 h4 f3 h5 f2 b6 g3 d6 g2 h6 f4 b7 g4 d5 g3 d7 f3 e5 Bd6 e6+ Kg6 h7 Kf6 e7 Kg7 e8R Nh6 Ra7 Ng4 Qc2 Qe7 d8Q Rg8 h8N Nc6 b8N Ba6 Be3 Nd4 Nc3 Be2 Qf5 Nc2 Nf7 Na3 Nb5 Qe4 Ka1 Nb1 Rh4 b2+ Ka2 Bd1 Bc4 f1Q Ne2 g1B Ned4 f2 Na6 g2 Nc6 Be2 Bb3 Qd1 Rb7 Nh2 Rf4 f1Q Qh4 Ng4 Rd7 Bh2 Bg1 Nf2 Rb7 Qd2 Ra7 Qfd1 Rd7 Be5 d6 Bc3 Bd5 Qde3 Ra7 Bd2 d7 Qh3 d8B Bg3 Qe7 Qh6 Qh4 Bh2 Ba5 Bg3 Qe5+ Kg6 Nfd6 Bh2 Nc8 Bg3 Bh2 g1R Raf7 Rg2 Bg1 Bh2 Bb4 Bg3 Qc3 Bh2 Qch3 Bg3 Rf3 Bd6 R3f4 Qf8 Nba7 Qh6 Bc3 Na3 Qd7 Qb4 Qdh3 Qb8 Nb5 Qb1+ Kb3 Qe4 Bb4 b1Q+ Ka4 Qc1 Kb3 Nb1 Ka2 Qe1 Ka1 Qd1 Qf5+
5BB1/Nn4N1/2pq4/1QNR3R/1BNb3b/1q2r1r1/1nb3Qn/nq1Qk1K1 b - - 0 1 illegal: No possible last move
r1Q1b1QR/NB1B3p/1n5N/4bqn1/3Qqbk1/1rr1B2N/4R2r/1qQ3K1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 e4 c5 g4 f5 d4 c4 b6 f3 e5 h3 d6 Ke6 b7 b3 d7 c3 g5 b2 g6 h2 g7 c2 Bh3 Nh6 g8B+ Nf7 Na3 b1R Nb5 Bd6 Na7 Qe7 d8Q Bd7 Be3 Rb3 Qc1 Be8 Ra3 Nd7 b8Q Nb6 Qbc8+ Nd7 Bg2 f4 d5+ Kf5 e6 Nb6 Nh3 Be5 d6 Kg4 d7 Ng5 Re1 h1R Re2 Rh2 Kg1 Qb4 e7 Qe4 Bd5 Rf8 Bc6 f2+ Kf1 Rf6 Bb7 Rc6 Bh1 Bh5 e8Q Rcc3 Qg8 Be8 Ra2 Qd4 Bhc6 Qe4 Qd2 c1B Qf6 Ba3 Qc1 Bad6 Ra5 Bd4 Rf5 B4e5 d8N Bb8 Nf7 Bbd6 Bd7 Bb8 Rb2 Bbc7 Ke2 f3+ Kd2 Qb1 Nh8 Bed6 Qgf7 Bb8 Qd4+ Bf4 Kd1 Be5 Re2 f1Q+ Kd2 Qg2 Ke1 Kh4 Qg7 Kh5 Rf8 f2+ Kd1 Qge4 Nf7 Kh4 Rh8 Bg3 Qg8 f1Q+ Kd2 Qf6 Kd1 Bgf4 Ke1 Qe6 Kf1 Q6f5 Kg1 Kg4 Nh6+
4bQ2/rR4Rb/1qN1K3/2b5/1RQ1BBrk/p1n5/1n1BNrr1/3Nr1rB b - - 0 1 legal: proof: b4 b5 f4 d5 a4 g5 h4 gxh4 c4 e5 cxd5 exf4 axb5 c5 Ra5 cxb4 Ra6 Qg5 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 e4 h5 g4 f5 d4 b3 b6 b2 d6 h3 d5 h2 b7 a4 d7 a3 d6 h4 Be3 h3 Kd5 Nf6+ Ke5 Nd5 Bd2 Na6 b8B Nc5 Qc1 Nc3 Bd3 Ra7 Ne2 Qb6 d8N Rh4 d7 N5a4 Nc6 Bc5 Ke6 Ba6 d8R Bb5 Rg1 h1R e5 Rh2 Rd4 Rg2 Rb4 h2 Be4 h1R Qc2 R1h2 Qb3 Rf2 Qc4 Rhg2 Ra2 Nd5 Nbc3 b1B Ra1 Nb2 Nd1 Nc3 Bc7 Bd3 Rb1 Bc2 Kd7 Bba4 e6 Bd3 e7 Bdc2 Ne3 f3 e8B f4 Nd1 Bd3 Ke6 Bdc2 Bd5 Bh7 Bg6 Bb5 Bd6 Ba4 Bge4 Bb5 Nd8 Be8 Bb7 Rh1 Ba8 Kh4 g5 Rg4 g6 Rfg2 g7 f2 g8Q f1R Nc6 f3 Qg7 f2 B6f4 Re1 Qf8 f1R Bb7 Nba4 R1b2 Rff2 R2b3 Nb2 Ba8 Qa5 Rb7 Qb6 Rb4 Rgh2 Rg2 Rhg1 Rg3 Rg8 Rgg7 Rhg2 Rgd7 R8g3 Rg7 Rg4 Bg6 Nca4 Rb8 Qc7 Na5 Rh2 Bh1 Nc3 R8b7 Rhg2 Nc6 Qb6 Be4
2B3r1/QQB5/qr1r1bnR/nrR3N1/Qb2Kp1r/3Q3b/1kr5/N1N2R2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 d4 c5 g4 h5 e4 b3 b6 b2 b7 h3 d6 h2 d7 h4 d5 Ke5 g5 f5 g6 h3 d6 c4 g7 c3 Qd2 c2 Ra4 Ne7 g8Q Qb6 d8R Rh4 d7 Nbc6 Qd3 Ng6 Rc4 Na5 Qf7 Qa6 Ne2 Bb4 Na3 b1R Rh8 Rh5 Rg1 h1R d8N h2 Rh6 Bd7 Ne6 Rg8 Bd2 c1B Bh3 Bb2 Nc2 Rc1 Na1 Rc2 Rb1 Rd1 Nc1 h1R Ng5 B2c3 Bg4 R1h4 Rc7 Be6 b8Q Bc8 Qa7 Bd7 Ke2 f3+ Ke3 f2 Rc4 Be6 Qfb7 f1R Rc8 Rfe1+ Kf3 f4 Rc5+ Bd5 Bc8 Re2 Qdb5 Kd4 Qa4 Bb3 e5 Be6 Qb3 Bh3 e6 Re4 e7 Re6 e8Q Rb6 Qea4 Bb2 Qba3 Bc3 Rb5 Kc4 Ke4 Bf6 Bc3 Rd5 Be5 Rdd8 Bc7 Rdd6 Ncb3 Kc3 Rf1 Rg7 Rd5 Rg8 Nc1+ Nb3 Qa2 Na5 Qc4+ Kb2 Qe2 Rb5 Qd3 Rbb6 Ne6 Rf5 Rc5 Rfd5 Ng5 Rf5 Rc3 Rfb5 Rc5
2r1R1bn/6bk/K4B1n/1nRnpQ1B/3B3r/Nr4q1/N2QRQ2/1Q1nn3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 a5 b4 h5 g4 e5 c5 d5 b6 e3+ Kd3 h3 f5+ Kh7 f6 h4 f7 h2 g5 a4 b7 a3 c6 a2 c7 e2 b5 e1N+ Kd2 h3 b6 d3 Kc3 d2 Ne2 d4+ Kc4 d3 Kb5 Qf6 Nec3 Nc6 b8Q Qf5 b7 Nce7 Be2 Ng6 Na3 Be6 c8Q Nh6 Bh5 Bg7 f8Q Bg8 Rf1 h1Q Rf2 h2 Re2 Ra4 Qc4 Rb4+ Ka6 Qg2 Rb1 a1R Na2 h1N Qcc2 Rh4 Rb5 Qg3 Rc5 Rb1 Qbd8 Rb3 b8B Nf2 Ba7 Nfg4 Qb8 Qd7 Qf2 Nf6 Qd6 Qdh3 Qb1 Qf5 Qdc2 d1N Bb6 d2 Bd8 Rb7 Bb2 Nd5 Bd4 N1c3 Bf6 d1N Qd8 Be6 Qa5 Re8 Qd8 Nh8 g6+ Kg8 Qa5 Nb5 Qac3 Rc8 Q3d2 Bf8 g7 Kh7 g8R Bg7 Re8 Bg8 Qbc1 Na7 Qa1 Rb3 Qab1 Nb5 Qcxf5+
NB1N2nB/Q2p4/1bQ1N1B1/n1Rnq2R/1r2r1R1/b3rn2/2nB1K2/n2k4 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 c4 Ke7 b4 Ke6 e4 Ke5 b6 f5 g5 a5 b5 h5 g6 f4 c5 h4 g7 a4 c6 h3 c7 f3 c8Q d3 b7 Kd4 e5 a3 b6 h2 e6 a2 e7 Ra4 e8R Nc6 b8B Qf6 b7 Rh3 Nd2 Kc3 Re4 Ba3 Nc4 Qe5 Nb6 Rb4 Qa4 Rh4 Qa5 Kc2 Ne2 g1B Qa7 g2 Na8 Bb6 Bd2 g1N Nf4 Rg4 Rd1 a1N Ne6 Rh4 Bc7 Na5 b8B Rg4 Be2 f2+ Kf1 Rg3 Bh5 Re3 Rg4 Nf3 Bg6 Rbe4 Kg2 f1N Kf2 Rb4 Re1 Rbe4 Re2 Kd1 Bd8 Rb4 Qc6 Rbe4 Bf6 Rb4 Rhg1 h1R Rh4 Rbe4 Rh5 Rhh4 Rg4 Rb4 Bc3 Rbe4 Rc2 d2 Bg5 Rb4 Bb2 Rbe4 Rc5 Rb4 Rg2 Rhe4 Rg4 Nd4 Bf4 Nh2 Bh6 Ndc2 Bc3 Nf6 g8N Nf3 Ne7 Ng8 Bg7 Kc1 Bh8 d1N+ Kg2 Nfd4 Be1 Nc3 Kf2 Kd1 Bd2 Nd5 Qa4 Nc7 Nc6 Nf3 Ncd8 Nd5 Qc6
2r4n/1r1bNRr1/R1R1r3/3p3N/1R2Bn2/Bb1QK1bn/Q4Q2/1B2kq1b b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 Kf7 g4 Kf6 c4 Ke5 f4+ Ke4 f6 e5 f7 h5 g5 d5 b6 h3 c5 d3+ Kd2 h4 c6 h2 g6 h3 f5 b3 f6 b2 c7 Ra7 b7 Nc6 b8R Nd4 g7 Ne7 g8B Ne2 Qb3 Ng6 Nf3 Nef4 Qa2 Bd7 c8Q Bd6 Qc2 Qf8 Rg1 h1N Nd4 h2 Bh7 Nf2 Rb4 h1B Nf5+ Kf3 Nc3 b1R Ba3 e4 Ne7 N2h3 Bg2+ Kf2 Rc1 Rg8 Qcb3 Nh8 Ne2 Ra8 Qc4 Rg7 Ng3 Rc8 Nh5 Bc7 Qa6 Bd6 Rc6 e3+ Kc3+ e2 Kd2 e1R Bge4 Ng2 Q6c4 Bg3 Qcc2 Ngf4 Bhg6 Qe8 f8R Rb3 Rf7 Qf8 Bf3 Re5 Bfe4 Re6 Qc4 Rb1 Qa6 Kf1 Ke3 Ke1 Bf5 d2 Qd3 d1B Ra6 Rb3 Rc1 Ra8 Rcc6 Rc8 Rb8 Qg8 Rf8 Rg4 f7 Ne2 Bg6 Rb5 Qd4 Be5 Bf3 Bb3 Bb1 Qg6 Bfe4 Qf5 Qd3 Bg3 Rbb6 Qf1 Rb8 Rg7 Rbb6 Rc5 Rb4 Rb5 Re8 Bh4 f8Q Rb7 Qf7 Bg3 Rf8 Rg5 Qf3 Nef4 Rf7 Rg7 Qff2+
b1qQ2n1/K1R1Rq2/4rn1b/3B4/nBNBRqN1/q2kQr1n/p5Q1/7B b - - 0 1 legal: proof: b4 b5 f4 d5 a4 g5 h4 gxh4 c4 e5 cxd5 exf4 axb5 c5 Ra5 cxb4 Ra6 Qg5 Ra1 Qd8 Kf2 Ke7 e4 Kd6 g4 Kc5 g5 Kd4 e5 h5 d6 a5 e6 f5 b6 b3 g6 b2 d7 a4 g7 h3 e7 h2 e8Q a3 b7 a2 Qc2 h4 Na3 b1N Nc4 h3 Bb2+ Nc3 Bg2 f3 Rc1 Qe7 d8Q+ Nd7 b8B f4 Bd6 Ra6 Bb4 Bb7 Re1 Qd6 Re7 Ndf6 Rc7 Ba8 Qe3+ Kd5 d4 Na4 Re7 Qd7 Re4 Re6 Ba1 Rh5 Qce2 Rf5 Qf1 Ne7 g8B Bh6 Bf7 Neg8 Bb2 Kc6 d5+ Kb5 d6 Qc6 d7 Qc8 Ke1 f2+ Ke2 f3+ Kd3 Rf4 Kd4 Rf5 Qfe2 f1Q Ba1 f2 Nf3 Qc1 Nfe5 f1Q Ng4 Qf4 Re1 h1Q Q2f3 Qg1 Bh1 h2 Qg2 Qa3 Re2 Qgf1 Bb2 Ra6 Bd5 Rc6 Qe7 Rb6 d8R Re6 Rd7 Q1f2 Qd8 Q2f3 Nge5 Qh5 Ra7 Qf7 Ng4 Qe7 Rc2 Qf8 Nd2 Q4d6 Re7 Qf7 Rcc7 Rf1 Qgh3 Rf4 Bg2 h1N B2c3 Nf2 Bh1 Rf3 Qg2 Nh3 Bb2 Nc3 Ba1 Qf4 Bb2 Ka4 Nc4 Kb3 Kc5 Qh5 Qee2 Na4+ Kb5 Qf7 Bd4 Rf2 Qe1 Kc2 Ka5 Kd3 Qc1 Rf3 Qcg1 Re5 Qc1 Nc5+ Kb6 Na4+ Ka7 Re6 Qe3+
1r1q3N/2Q1Qr1R/1B1qnbnn/K2NR3/1B1qqB2/3n3p/1Q2k3/2bN2B1 b - - 0 1 legal: proof: g4 c5 e4 f5 d4 cxd4 a4 b5 axb5 g6 f4 Bb7 g5 Bd5 h3 Bc4 Bg2 Be2 Bf1 Bg4 hxg4 Na6 Bc4 Nb8 Be6 fxe4 f5 Bg7 f6 Bf8 Bf5 gxf5 Kd2 Kf7 c4 Kg6 b4 a5 c5 h5 b6 d5 c6 e5 b7 a4 b5 d3 Kc3 d4+ Kc4 f4 f7 f3 c7 h4 c8N h3 b6 f2 Kb5 f1N Nd2 a3 Ngf3 a2 Qc2 e3 Qc7 e2 Nc4 e1Q Be3 d2 Nb2 d1Q Bg1 Ba3 f8B d3 Bb4 Nc6 b8B d2 b7 e4 Nb6 e3 Nd5 e2 Bba7 Nh2 b8B Nge7 Bab6 Rf8 Rb1 a1B Nh4+ Kh7 g6+ Kh6 g7 Kg5 g8Q+ Ng6 Qe6 Rf7 Rc1 Qd6 Rc5 Nd8 Qed7 Ne6 Qe7+ Kh6 g5+ Kh5 Rc4 Ng4 Re4 Qd8 Re5 Nh6 Rh2 Kg4 Rf2 Qc2 Rff5 Qc3 Nd1 Qd4 Rf3 Bc1 Ra3 Nef8 Ra7 Ne6 Ka5 Bc3 Ng2 Kf3 Ngf4 Nh4 g6 Qd6 g7 Ng6 Nf2 d1Q g8Q Q1d3 Qh8 Q3e4 Ka4 Qed2 Ka5 e1N Nd1 Nd3 Qhf6 Nh8 Ng6+ Ke2 Nf8 Ng6 Qg7 Nh4 Ng6 Ba1 Nh8 Ng6 Qc2 Bc3 Qb2 Qd8 Bd6 Rb8 Qc7 Rf2 Qge7 Rf1 Rg5 Rf7 Bf4 Qd6 Re5 Qd8 Nf6 Q4d6 Nd5 Bd4 Rg5 Bf6 Re5 Nf2 Qcc3 Rh7 Qf7 Rg7 Rd7 Rh7 Qc7 Rg7 Qa3 Qd4 Qf8 Nd3 Rf7 Rg8 Qfe7 Rf8 Rh7 Rf7 Qb2+
qRQ3Nk/1NB3B1/3b1b1N/RrQ1r3/Kn3r1b/2p1n2B/1r4bq/6RR b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 d4 g5 Kd2 f5 Kc2 Kf7 Kb3 Kg7 h4 c5 e4 f3 b6 f4 b7 c4+ Kb2 g3 h5 c3+ Kb3 g2 d6 f2 d5 f3 e5 g4 e6 g3 d7 Na6 b8R Bd6 e7 Nf6 e8R Ng4 Ra5 Ne3 Nh3 g1B Ba3 g2 Nd2 Bb7 Ka4 b3 Ne4 b2 Nhg5 b1R Nf7 Rb5 Nf6 Nb4 Ng8 Bgh2 Qb3 g1B Bh3 f1R Qc4 f2 Qc5 Bhe5 Nfh6 Bf6 Re4 Rh7 Rg4+ Kh8 Rg3 Qe8 d8B Re7 Bc7 Re5 Rg4 Bh2 Rgg1 Bde7 d6 Bg2 d7 Qc8 Rb6 Rb8 d8N Bd6 Nb7 Bg3 Nf5 Qd8 h6 Bgh4 h7 Qe8 Nfh6 Qc6 Nd8 Qa8 Nb7 Rd1 Bb2 f1Q Bc1 Qf4 Ba3 Nbd5+ Bb4 Qh2 Ba3 Rdb1 Bb4 Rf8 Ba3 Kg7 Bb4 Rb2 h8Q+ Kg6 Ba3 Nb4 Qd5 Bg7 Nd8 Nd3 Nf6 Be7 Rb8 Rf7 Bad6 Nb4 Qc5 Bgf8 Nb7 Bd8 Ne4 Rf4 Nf6 Bfe7 Qe8+ Kg7 Nfg8 Kh8 Qd7 Bef6 Bf8 Bde7 Qc8 Bd6 Bg7+
kn2NQ1n/q1RB2r1/NNr5/1K3R1p/1B1rrq1b/4b1Bb/1N6/1Q1bR3 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Kd7 Ke2 h5 Kd3 c5 Kc4 Kc7 d4 Kb7 g4 f5 d6 h3 b6 b3 g5 h2 d7 f3 d5 f4 d6 b2 g6 f2 g7 f3 e5 Nh6 g8R Qf6 d8Q Ra6 d7 Qf4+ Kb5 c4 e6 c3 e7 c2 e8N Nf7 Nd2 b1B Nh3 Ka8 Rg5 Rh7 Rf5 Rg7 Ba3 c1B Nc4 Be7 Nb2 Bc2 Bb4 Be3 Qb1 Nh8 Ra2 Qc7 Nf4 Qa7 Bh3 f1R Nd5 Rd1 Re1 h1R Ra3 f2 Rc3 Bf6 Rc7 Bh4 Qe7 Bb3 d8B Rd4 Qf8 Bd1 Bg5 Rg1 Bf4 R1g4 Bg3 Rge4 Bg4 Rc4 Bh3 f1Q Bg4 Qf4 Bh3 Rcd4 Bg4 Nd7 b7+ Kb8 Bh3 Rc6 Nb6 Bb3 Rf7 Bd1 Rf6 Qa8 Bf5 Ka7 b8N+ Qb7 Na6 Nb8 Bg6 Bcg4 Bf5 Bh3 Rc8 Qa8 Bd7 Kb7 Rf5 Qa7 Nd5 Ka8 Rc7 Qf3 Qa2 Qg4 Qb1 Qf4 Nb6+
1BB1BN2/3b2Qp/nq1r1q2/1R2N3/QN1qk1R1/N1rbn2K/1n6/1nqR4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 b4 Ke7 e4 Ke6 c4 Ke5 b6 a5 b5 f5 g6 d5 b7 g2 Kf2 d3 Kg3 a4 b6 d2 g7 f4+ Kh2 f3 c5 a3 c6 f2 c7 d4 Nh3 d3 Rg1 a2 Qa4 d1N Nf4 d2 Na3 Bd7 c8R Na6 b8N Nh6 g8Q Qf6 b7 Nf5 Ne6 g3+ Kh3 Nc3 Qg7 d1N Nf8 Nb2 Rc6 Ra7 Rb6 Nb1 Bd3 f1B Rb5+ Nc5 Be2 Ra6 Bg4 Rd6 Na6 Ne3 b8N Bd3 Nb4 Kf4 e5 Na6 e6 Ke4 Rd1 g1Q e7 g2 e8B Qe1 Bd2 g1Q N8c6 Qef2 Be1 Qd2 Be6 Qc1 Bg3 Qd4 Bh2 Qg6 Rg1 Qb6 Bf4 Qf6 Ne5 Rg8 Qh8 Rg2 Qg7 Rc2 Rg4 Rc3 B6f7 Nd2 Rb1 a1Q Be6 Qe1 Rd1 Nb1 Rd2 Qc1 Rd1 Bc6 Bc8 Bd7 Nfg6 Qa2 Nf8 Qd5 Bh5 Qdc5 Be8 Qd4 Nec6 Re6 Bb8+ Kf3 Rgg5 Ke4 Ne5 Rd6+ Rg4+
K3bk2/n1pB1qR1/1qN3R1/7B/2nbbB1Q/2r1R1rn/1n1Q4/QNb4R b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 g5 h4 f5 e4 f3 Ke3 f4+ Kd4 b3 b6 f2 e5 f3 h5 g3 d6 b2 Kd5 g4 d4 g2 b7 g3 h6 Nd7 Kc6 Nc5 b8R Qf6 e6 Ra3 d5 Rc3 h7 Bh6 d7+ Kf8 Be2 f1N d6 f2 Ra3 Ne3 Qd2 f1Q Rb6 Nc4 Nf3 g1N Nd4 g2 Bh5 Na4 Ra6 Rg3 Re3 Nh3 Rb6 g1B d8Q+ Kg7 e7 Bd7+ Kb7 Be8 d7 Q1f4 Rbb3 Qb6+ Ka8 Qf7 Nc6 Bf2 Re6 Bd4 Rbe3 Bf4 Qc8 Bh6 d8R Bf4 Qa6 Bg5 Nc3 b1B Rd7 Be4 Nb1 Nab2 Rf6 Nh6 Rfd6 Nf5 Qa1 Rf8 Re6 Nfd6 Rf6 Nb5 Re6 Qg6 h8Q+ Kf7 Red6 Na7 Re6 Bf4 Qf6+ Kg8 Qh4 Bg5 Red6 Rff3 Rf6 Qg7 Rg6 Bf4 Ree1 Rc3 Re3 Bf7 e8B Kf8 Re7 Bh6 Bd7 Be8 Ree6 Qf6 Rg7 Qf7 Reg6 Qe6 Qe1 Na4 Re2 Nab2 Qd1 Bd2 Ree1 Qf7 Re2 Be1 Bf4 Bd2 Re3 Bc1 Qd2
R6q/QNQr1q1n/1R1q1q1B/q2bn1Q1/B2r3n/5R2/pBNQ2q1/K5k1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 e4 Kd6 c4 Ke5 Kc2 f5 b4 d5 Kb2 h5 c5 a5 g6 f4 g7 h4 b6 a4 c6 a3+ Ka2 g2 b5 h3 b7 f3 c7 d3 b6 Kd4 e5 d2 e6 Ke3 e7 Kf2 e8Q h2 Qe5 d4 Qf5 d3 Be2 g3 Qb3 d1Q Qff7 d2 Qe7 Nd7 b8Q Rh7 b7 Ra4 Qa7+ Rd4 b8B Qf1 Qd5 d1Q Bb2 Ngf6 g8R Bb7 c8Q Qa5 Bb5 Ne5 Ne2 g1Q Nd2 g2 Nc4 Qdd2 Qec5 Rd7 Ba4 Nh7 Rb1 Qf4 Ka1 a2 Qdd6 Bd5 Q8c7 Qf6 Qb5 Qd1 Qdb4 Qgf1 Qd2 g1N Nd6 Qg2 Nb7 Kf1 Rg3 f2 Rf3 Qf7 Qbb4 Qf6 Qg5 Qf7 Bc1 Qd3 Qbd2 Qdg6 Rb6 Qd6 Ba3 Nf8 Rf6 Nc6 Qd8 Rf4 Qb4 Qdc5 Qg7 Rh4 Bg3 Ne5 Qc7 Qd6 Nd4 Rg4 Nc2 Rd4 Rf5 Qf3 Rg5 Q3f6 Qd2 Kg2 Qh6 Ngf3 Rf1 h1Q Rg8 Qh3 Qhf4 Qhh8 Bb2 Nh7 Ra8 Nh4 Qfe3 Qhg7 Bf4 Qh8 Bh6 Kh2 Rh1+ Kg2 Rh3 Kg1 Qed3 f1Q+ Qc1 Kg2 Rf3 Qf2 Qf4 Kg1 Qg5+ Qg2 Qdd2
Q2B2q1/2r2n2/B1R1n1R1/nr2r2N/1p3rr1/2B3qk/2KNrB1Q/b4RQ1 b - - 0 1 illegal: No possible last move, all moves rejected
Rqn3q1/1q1B3R/1Qr5/NR3b1K/Q2n1B2/Nr1k1Bqn/BpQ5/1qn5 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 a4 Ke7 e4 Kd6 Ke2 Kc5 d4+ Kc4 a5 f5 e5 c5 a6 b5 a7 h5 d6 f4 e6 h4 d7 b3 e7 h3 e8Q h2 g6 g2 g7 b4 d5 b2 d6 b3 Bd2 g3 Qe1 Nc6 Ra2 Nge7 Nh3 g1Q Qd1 g2 Ra5 Rb8 a8B Rh6 Kf3+ Kd4 Kg4 f3 g8B c4 Bf7 f2 Qc2 c3 Bb5 f1Q Na3 b1Q Ng5 b2 Bf4 Qff2 Ba2 Rf6 Bb7 Qg3+ Kh5 Qc7 d8Q Bf5 d7 Nc8 Nf7 Qg8 Qc1 c2 Nd6 Qb6 Ndc4 Kd3 Qc7 Nd4 Bf3 Rc6 d8R Qe1 Rd5 g1N Ra8 Qeg3 Qd6 Nh3 Na5+ Kc3 Ba4 Kd3 Rb5 Rb7 Qdd8 Qa7 Qb6 Qb8 Re1 h1Q Re7 Qhg2 Rh7 Qh1 B4b3 Qhg2 Be6 Qh1 Bd7 Qhg2 Qh1 c1N Qh2 Rbc7 Qe6 Rc3 Bb7 Qe4 Qb3 Qc6 Qa4 Rb3 Be8 Qd7 Bf3 Rc6 Qg2 Qda7 Bd7 Qab7 Qc2+
RR4Rk/1K4p1/1b1r2rn/1N3Bb1/N1B3rQ/Qbqr4/4R1Qq/3N1br1 b - - 0 1 illegal: No possible last move, all moves rejected
q1qB4/k5b1/b4N2/2qRrB2/1N3K2/N1R1Qpp1/1r1b2r1/nRnQ1R1Q b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 d4 f5 h4 c5 e4 Kc7 d6+ Kb7 e5 g5 d5 f3 Kg3 b3 h5 f4+ Kh2 b2 d7 g3+ Kh3 c4 Kg4 c3 h6 g2 d6 f2 b6 f3 h7 c2 e6 Na6 e7 Nh6+ Kg3 g4 e8Q Nb4 Ne2 g1Q+ Kf4 g3 Bh3 f1Q Bf5 Qc5 Nec3 Ra2 Ne4 Ng4 Na3 b1R Nf6 Rbb2 Rb1 Qh3 Qe3 Nf2 Rf1 Bg7 Bd2 Kb8 b7 Ka7 b8N c1B Na6 Re8 h8Q Nc2 Ba5 Bd2 Nb4 Ba6 Qh4 Qa8 d8R Re5 d7 Na1 Rc8 Rc2 d8R Rcb2 Rd5 Nd3+ Kg5 Nc1 Kf4 Be2 Bd8 Ba6 Bd3 Qe6 Rc6 Qec8 Bf5 Bc3 Qh6 Rg2 Qh1 Bd2 Rf2 Rb2 Rf1 Qb6 Rc2 Qbc5 Rc3
Br5r/q1b1n2b/R3R1Qp/1QNn4/Q1q4k/6p1/r1B3n1/NBKRb1Q1 b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b6 h4 b5 b3 b4 Bb2 gxh4 Bf6 Ba6 Bg5 Bc8 Bf4 e5 Bg3 Nf6 f4 exf4 a3 fxg3 axb4 Ng8 b5 Qg5 Ra5 Qe7 Ra1 Qd8 d4 Ke7 Kd2 Kf6 e4 Kg5 b4 a5 d6 c5 d7 f5 d5 a4 b6 h3 b5 a3 d6 h2 b7 f4 e5 f3 e6 a2 e7 c4 e8B f2 b6 c3+ Kc1 c2 Nh3+ Kh4 g5 h6 g6 Ra4 g7 Qg5+ Nf4 Ra7 d8R Qa5 d7 Qe1 Bd3 f1N Ne6 Bd6 Nd2 Qf2 Nb3 Qd4 Nec5 Kh3 Beg6 Bc7 Re8 Qc4 d8Q Bf5 Qf6 Ne3 Qg1 Ne7 g8B Nd7 b8Q Ng2 b7 Nb6 Qa8 Nbd5 b8Q Be4 Qfc6 Kh4 Qbb5 Rb7 B6h7 Rb8 Qaa4 Bf5 Qg6 Be4 Rb1 a1R Bf7 Ra2 Ra1 Bf5 Be6 Be4 Bd7 Bf5 Bc6 Be4 Ba8 Bf5 Kd2 c1B+ Kd1 Be3 Bb1 Bf2 Bc2 Be1 Kc1 Nc8 Re6 Nce7 Qf2 Be4 Rf1 h1Q Qg1 Qh3 Rff6 Qf5 Ra6 Qc8 Rfe6 Qb7 Rb1 Qa7 Na1 Rb7 Rb3 Rbb8 Rd3 Bf3 Rd1 Bh5 Qg7 Bf7 Bf5 Bg8 Qg6 Bh7 Be4 Qe2 Bb1 Qc4+ Bec2
BkQBKQ2/2b1B1p1/1Nr5/N3rrR1/n1p3R1/n2b2Rb/B5Nq/1q5n b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 h4 c5 e4 Kc7 d4 f5 h5 g3+ Kf3 g2 d6+ Kb7 h6 b3 d5 b2 d7 Qb6 d8Q Qc6 b6 Qb5 e5 Na6 h7 Ne7 d6 Qb4 d7 Qe1 e6 Rb8 Bc4 Nc7 Nh3 g1Q Na3 b1R Ba2 Qg6 Rg1 Nb5 Nc4 Nd5 e7 Na3 e8B Nc3 Rg5 Na4 Qd6 Qg1 Na5+ Ka8 Be3 c4 Bc5 Re1 Qe6 Rb7 Be7 Rc7 b7+ Kb8 Qf7 Rg8 h8R Rc6 Rh4 Qh2 Rhg4 Re5 Rag1 Rh8 Qf6 Rh5 R1g3 Qh7 Bf7 Qg6 Bd5 Qh7 Bc5 Bd6 Qff8 Bc7 Be7 Qg6 Nf2 Qh7 Nd3 Qg6 Ne1 Qh7 Ng2 Qg6 Kf2 f3 Qde8 f4 d8B Qb1 Be4 Bf5 Bd5 Bd3 Be4 Ka7 b8N Rf5 Nd7 Re5 Nb6 Kb8 Rg6 Rhf5 R6g5 Qb2+ Ke1 Qb1+ Kd2 f2 Qd7 f3 Ke3 f1N+ Kd4 f2 Bf3 Rg6 Ba8 Rc6 Qc8+ Ka7 Rf3 Ng3 Re3 Nh1 Reg3 f1B Bd6 Re8 B6e7 Rf4+ Kd5 Rf2 Ne1 Bh3 Ng2 Rf5+ Kd4 Be5+ Kd5 Bd6+ Ke6 Be5+ Kd7 Bc7 Bb4 Re3 Bbe7 Ree5 Qa6+ Kb8 Ke8 Re2 Bb7 Re4 Ba8 Ree5 Qc8+
Bq1RNB1r/3R2Q1/n1n1Q1rn/7n/2n5/1BK3pb/r3NRpB/k2bQ3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 e4 Kd6 c4 Ke5 b4 d5 b6 f5 b7 h5 g6 a5 g7 f4 b5 g2 c5 h4 b6 d3 c6 Kd4 e5 f3 c7 f2 e6 h3 e7 h2 e8Q a4 Qg6 a3 Qh6 a2 Qg5 Nc6 b8Q Nh6 Be2 f1R g8B Rf6 b7 Rg6 Nc3 Be6 Rb1 a1N c8R Ra2+ Rb2 Nc2 Ne4 N2b4 Bf3 Na6 Qe1 Kc4 Qc7 d4 b8B Qe8 Rc2+ Kb3 Ne2 Qd8 Rf1 h1N Nf6 Ng3 Qd7 Nh5 Bh2 g3 Rf2 Qf8 Ra8 Qb8 Rb2+ Ka3 Ne8 Bg4 Bb3 Bh3 Kd1 d2 Kc2 d1N Qe6 d3+ Kd2 Rgg8 Qg7 Ne3 Kc3 d2 Be4 d1B Rd2+ Rb2 Rd7 Nc4 Bf4 Ra2 Be5 Qd6 Rad8 Qb8 Qgg4 Rg5 Bg7 Rg6 Bf8+ Nd6 Kd3 Kb2 Bed5 Ka1 Kc3 Nc4 Qd4 Ncb4 Ba8 Nc6 Qg7
2n2Qr1/R3Q3/3B3q/1KR1r2p/Rbn2Nr1/1Nb3n1/1b1p2bB/2Rk1N1B b - - 0 1 legal: proof: h4 f5 e4 c5 exf5 b5 a4 g5 axb5 gxh4 d4 cxd4 c3 dxc3 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 b4 a5 g4 h5 b6 e5 g5 d5+ Kb5 a4 g6 a3 f6 a2 b7 c2 f7 h3 g7 h2 f5 d4 f6 d3 Bf4 c1B Qe2+ Be3 Nf3 Nc6 b8B Bb7 Bd6 Na5 Nd4 Ne7 g8R Nc8 Rg7 Nc4 Nb3 Rg8 Rhg1 h1N Bh2 Rb8 R1g5 Ng3 N1d2+ Kf4 Bg2 Bd4 Rh7 Bc3 Nf1 d2 Bh1 Be7 Rc1 a1B f8N Bab2 f7 Qc7 Rc2 Bg2+ Ka6 Qd7 b5 Qe6 b6 Qh6 b7 Rg7 Qe1 Kf3 Ne6 e4 Nf4 e3 f8Q e2 Rc5 Rg4 Kb5 Ra8 Qb1 e1R b8R Re3 Qe1 Re5 Qe4+ Kf2 Qb7 Ke1 Qd7 Bf6 Qde7 Kd1 Rb7 Bb4 Ra7 Re2 Ra4 Bfc3 Qg5 Re5 Rha7 N8b6 Qgf6 Rae8 Q8e7 Reg8 Qff8 Nc8 Rc1+
1BNkn3/1qb1B1r1/1Q1q2Qp/N1N1R2n/6RB/q2r2q1/1pK1Rbq1/2R5 b - - 0 1 illegal: No possible last move, all moves rejected
R4qkQ/3Rrn2/1NQpRB2/r1p3n1/n1n3nb/5QB1/2BN3q/1K3Qb1 b - - 0 1 legal: proof: f4 e5 h4 exf4 d4 g5 b4 gxh4 a4 b5 d5 d6 a5 Nc6 Kf2 Ba6 c4 Qd7 cxb5 Qc8 b6 Qe6 b5 Bb7 a6 Qxd5 axb7 Nb8 Ra6 Qd3 Ra1 Qd2 g4 f5 g5 Kf7 Ra6 h5 Ra1 c5 Rh2 a5 Bb2 a4 Na3 h3 Nc4 a3 Nf3 a2 Be5 Nh6 g6+ Kg8 g7 Nd7 b8Q h4 b7 Ra5 b6 Rh7 Qc8 Nf7 Qc6 Be7 b8Q+ Bd8 b7 Nb6 Qc1 Na4 Qa8 Qc2 Nfd2 f3 Ke3 f2 Rh1 h2 b8B h3 Nb6 Bh4 Bg3 Qb2 Kd3 f4 e4 f3 Bg2 f1N e5 f2 e6 Ne3 e7 Nc4 Be4 f1N Qab7 Nfe3 Bc7 Qf6 Bd8 Ng4 Kc2 Qf4 Rg1 h1Q Qf1 h2 Kc1 Qg2 Bc2 h1N Qcf3 Qh3 Qbc6 Qh2 Rg2 Qf6 Re2 Qf5 Re6 Nhf2 Rb1 a1B Rb4 Nd3+ Kb1 Ng5 e8R+ Qf8 Bf6 Bd4 Ra8 Nde5 Rb3 Nef7 Rbe3 Qh1 Re7 Qh2 R3e6 Be3 Rd7 Bg1 Ree7 Rh6 Bb2 Re6 Bf6 Re4 Bd4 Kh7 g8Q+ Kh6 Qh8+ Kg6 Qhf6+ Kh7 Qh6+ Kg8 Bf6 Rd4 Re3 Re4 Re1 Re8 Re6 Re7 Qh8+
Qb1QnKQN/3r2pr/N2pr1B1/2b2nR1/3R1Q2/q3k2B/1R2r1qB/1r6 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 Nh3 c5 Ng1 cxd4 g4 hxg4 b3 a5 b6 a4 Ra2 a3 Ra1 Bb7 Nh3 Bc6 Ng1 Ba4 bxa4 Rh7 Kd2 Rh6 Ke1 Rh8 Kf2 Ke7 e4 Ke6 c4 Ke5 h4 f5 a5 f3 Kg3 f2 a6 a2 c5 d3 a7 Kd4 Kf4 d2 e5 g3 c6 g2 h5 d6 h6 Qh4+ Qg4 d1R h7 Nf6 c7 Be7 c8Q Re8 h8Q Qh2+ Kg5+ f4 Kg6 Ng8 Kf7 Rd8 b7 Rd7 e6 Bd8+ e7 Nh6+ Kf8 Nf5 e8B Na6 b8R Re1 Nh3 g1B Ng5 Nc7 Nd2 Qg2 Bg6 Re2 Qg8 Ne8 Nf7 Bc7 Rb2 Ke3 Rh5 f3 Qd8 Bb8 Rab1 a1Q Nh8 Qa3 Rg5 Qh2 Bg2 f1R Bh3 f2 Rb4 Rfe1 R1b2 f1R Rd4 Qg2 Nb3+ Kf2 Bd2 Re6 Bc3+ R1e2 Nc5 Ke3 Na6 Rb1 Be1 Bc7 Bg3 Rc8 a8Q Bb8 Qf7 Bf2 Qh4 Rcc1 Qh7 Rh1 Qhg8 Rh2 Bg4 Rh7 Bh2 Be1 Qff6 Bb4 Bh3 Bc5 Qff7 Nh4 Qf1 Nf5 Qf4#
2Q4q/N4n2/Kbb1QN2/BN1R1b2/4bn2/1q2qpB1/1rN1p3/B1kRr2Q b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 d5 h4 gxh4 cxd5 exf4 e3 f3 Be2 fxe2 Kf2 Qe7 Qe1 Qd6 Qd1 Qd8 d4 Ke7 g4 Kf6 b4 Kg5 d6 a5 b6 f5 b5 h5 b7 c5 b6 f4 d7 a4 e4 a3 d5 a2 d6 c4 e5 h3 e6 h2 e7 c3 e8N c2 Na3 h4 Nb5 h3 Bb2 c1Q Nf6 Qe7 d8B Nh6 d7 Nc6 b8N Nd4 b7 Qf7 Ba5 Bc5 d8Q Bf5 Nc6 Rb8 Qc8 Bb6 Nca7 Qb3 Ke1 Qc5 Kd2 Ne6 Bbc3 Nf7 Nf3+ Kg6 Ne1 Kg5 Rg1 h1B Nc2 h2 Qf1 Rg8 Rd1 Bhe4 Ba1 h1B Qh3 Bhf3 Qh1 Bc6 Rg3 B3e4 Rd3 f3 Rd5 Kf4 g5 Rd8 g6 Qce3+ Ke1 Rh8 g7 Rh4 g8Q Rg4 Bb2 a1Q Qge8 Ng7 Qee6 Nh5 Qf1 Rg1 Bd4 Qf2+ Kd2 Qab2 Qg2 Re1 Qh1 Qg1 Bf2 Qe5 Bd4 Qg7 Ba1 Qh8 Ncd4 Qa4 Kc3 Ke3 Rd8 Qc2+ Kb4 Nf4 Rd5 Qd3 Rb1 Kd2 Nc2 Ra8 b8B Qc3+ Ka4 Qd4+ Rb4 Kc1 Be5 Qde3 Rbd4 Rb8 Bd6 Nh5 Bg3 Nf4 Bb4 Bc5 Ka5 Bf8 Nc7 Bc5 Ka6 Rb5 Rd2 Bb6 Ba5 Rb2 Ncb5 Qb3 Rd1+
5rBb/4N2Q/qnQ1RB2/1nKB4/p2rr1N1/r1k5/nRRq2Bp/1b5N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Kf6 g4 Ke5 e4 d5 b4 h5 c5 f5 g5 a5 c6 d3 b6 Kd4 b5 f3 b7 h3 c7 d2 g6 f4 b6 h4 e5 h2 g7 h3 e6 Na6 b8N Ne7 g8B Rh4 b7 Nb4 Bh7 Na2 Bg8 Bg7 Bg2 Bh8 Qb3 d1Q Nd2 Qc2 Qb1 Kc3 Nc6 d4 b8R d3 Rb2 Nd5 e7 Bf5 e8Q Nb6 c8B a4 Qg6 Qg5 Bd7 Rd8 Bde6 Rd4 Ne7 Re4 Bd5 Rg4 Kf1 f2 Ndf3 d2 Ne5 d1N Qd6 Rg3 Ng4 Rd3 Be3 Bg6 Bc5 Rdd4 Qc6 Bh7 Nf3 Qh6 Nh4 Qg5 Rg1 h1R Nhf5 h2 Ng3 Qh6 Bh3 Bg6 Kg2 Bf5 Kf3 Bh7 Re1 f1R+ Nf2 Rhg1 Nh1 Bf5 Bg2 Bh7 Kg4 f3+ Kg3 Qe3 Ng4 Qed2 Re2 f2 Kf3 Ne3 Bd6+ Nec4 Be5 Bg6 Bf6 Bf5 Qe8 Na3 Qg6 Nb5 Qh7 Re1 Qc1 Rgf1 Rab1 Re6 Re5 Ree4 Ra1 Rd6 Re6 Rd8 Rab1 Rf8 Ra1 Qe1 Qch6 Qed2 Rab1 Rfe1 Rc1 f1Q+ Nhf2 Qc4 Nh1 R4e2 Q6g6 Bd3 Qe4 Re3+ Kf4 Qc8 Kf5 Qa6 Ke5 Na3 Kd6 Nb5+ Kc6 Rg3 Qf3 Re4 Kc5 Re3 Rg1 Qb3 Qh5 Bb1 Bb7 Kd3 Rc1 Qbd1 Qfd5 Re4 Qh7 Re3 Qd6 Rf3 Bd5 Q2c2+ Bc4+ Kd2 Qd5 Ra3 Qc6 Kc3 Bd5 Qd2 Rcxc2+
bqk2N1b/BNQq4/KBNb1R2/Q5pp/2Bn2R1/7b/2rQ2n1/r2Qr3 b - - 0 1 illegal: No possible last move
5k1n/2N3N1/2nBKbr1/1n1Q1ppb/2n3b1/1N1RB2Q/2R1Q2q/qN3r1R b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e6 h4 Bb7 a4 Bc8 f4 g6 f5 exf5 axb5 Bb7 h5 Bc8 g5 gxh5 g6 h4 g7 Nc6 Bh3 Nb4 Bg4 Nc6 Bh5 Nb8 Bg6 fxg6 Kf2 h5 Kf3 a5 Kf4 c5 Ke5 h3 e4 c4 b4 h2 d4 g5 b6 c3 d6 a4 d5 a3 b7 a2 b5 c2 b6 h4 Ne2 h3 Rf1 h1B Be3 c1N Rf2 h2 Qe1 Nb3 Nd4 Nh6 g8Q Nd2 Nb3 Be6 Qh7 Bf3 Qe2 Be7 d7+ Kf8 d6 Qc7 d8N Qc1 d7 Bf7 Rg2 B7h5 Ke6 h1Q e5 Nc6 b8B Qcf1 b7 Ra6 Bd6 Bfg4 b8Q Nf7 Qbb5 Qh2 Qd5 Nc4 Rf2 Bg6 Qh3 B6h5 Qef3 Rh7 Rc2 Nh8 Qe2 Qe1 Nb7 Qeh1 N7c5 Rb6 Na6 Q1g1 Bc7 Bf6 Bb8 Rg7 Nc7 Rg6 d8R+ Kg7 Rd6 Kf8 Qe4 Rb5 Rd3 Rd5 Q4f3 Rd4 Qd5 Rf4 Kd7 Qd1 e6 Rf1 e7+ Kg7 e8N+ Kf8 N1d2 Qc1 Rb1 a1N Ke6 Qa3 Ng7 Qa5 Ra2 Nc2 Rc1 Qa6 Nb1 N2a3 Rac2 Nb5 Rcd1 Rf3 Rh1 Rf1 Bba7 Qa4 Bf4 Qa2 Bae3 Qa1 Bd6+
3R2Qq/R2n1p1q/B1K1N2b/1n2k1NQ/8/QRB1rB1p/1b1rbB2/rr6 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 g4 h5 d4 f3 g5+ Ke7 b6 Kd6 g6 h3 b7 b3 g7 f2 Bd2 c4 Na3 c3 Nf3 h4 Nb5+ Kd7 d6 Ke6 d7 c2 d5+ Kf6 d6 c1B Kd5 h2 e4 h3 e5+ Kf5 e6 b2 e7 b1Q e8B Ra3 Bc3 Rh5 Nc7 Nh6 g8Q Bb2 Ba6 f1R Ng5 Bg7 Rg1 h1R Nce6 Rf3 Qa4 Re3 Rg3 Rh4 Kc5 Rd4 Qa5 Qf6 d8Q Rd2 Qe7 Nd7+ Kc6+ Qe5 b8B Rc1 Bb5 Ba6 Ba7 Qc2 Be2 Rb1 Bf3 Be2 Qd5 Ra4 Bb6 Ra8 Ra7 Qd3 Qef8 Kf6 Qa5 Qh7 Qa3 Qd4 Qh8 Nf5 Qfg8 Ke5 Bc5 Nb6 d7 Nd6 d8R Nd7 Bb6 Nb5 Bc5 Qg6 Qh5 Bh6 Bb6 Nf8 Bd7 Qh7 Bc8 Nd7 Ba6 Kf5 Rg4 Qdh8 Rd4 Ke5 Rd3+ Kf5 Bb4 Ke5 Rb3 Re4 Bg1 Re3 Bf2 Rc8+ Kb7 Rcc1 Ba5 Rh1 Kc6 Ra1 Bb4 Rhb1 Bc3+
3q1RKR/2r2p2/B1BQp1Q1/3r1B1b/2n2N1B/1nN4N/1q2brn1/k1n2R2 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 f4 gxh4 e3 dxe3 f5 e6 f6 Be7 Nd2 Kf8 fxe7+ Kg7 Nb1 Kf6 Ke2 Ke5 Kd3 a5 Kc4 d5+ Kc5 h5 e8R a4 b4 h3 g4 d4 c4 h4 b6 d3 b5 e2 g5 e1N g6 d2 g7 h2 b7 h3 b6 a3 Bd3 a2 Be4 Rh5 Rf8 Ra7 Qg4 d1B Qg6 Nh6 g8B Ng4 Bh7 Nc6 b8Q+ Rc7 b7 Ng2 Bg5 N4e3 Bh4 Nd4+ Bc6 Ne2 Nc3 Bd7 Rc1 a1N Rb1 Rf5 Rc1 Rf2 Rb1 Kf4 Kd6 Nc1 c5 Nab3 Ra1 Bh5 Rb1 Qc8 Ke7 Nc4 Kf6 Ke3+ Kg7 Kd4 Kg8 Qe8 Qd8 Qe7 b8N Qe8 Qe7 Qd8 Na6 Bc8 Nb4 Ba6 Nbd5 Bb5 Ne4 Kd3 Qd6 Kc2 Ra1 Kb2 Nec3 Ba6 Nf4 Bb5 Ra4 Ba6 Rb4 Ka1 Rb8 Bb5 Nge2 Ba6 Rf1 h1Q Ng1 h2 Ngh3 Qg1 Bd5 h1R c6 Qh2 Bf3 Ra7 c7 Bb5 c8B Rc7 Bc6 Ba6 Rd1 Re1 B8b7 Re5 Rf1 Bb5 Ba6 Rd5 Nfe2 Qe5 Nef4 Qe2 Qg5 Qb2 Bf5 Nca5 Qg6 Bbe2 Kh7 Nc4 Rh8 Qf6 Rbf8 Qd8 Kg8
2n3n1/2r1p1R1/1B1q2Q1/p1N1N2R/2K1b3/1R4Nq/3qBrbk/2Rr1QQr b - - 0 1 illegal: No possible last move
3RBbK1/3p4/rq4bN/Q1np1Rq1/4n1B1/3QNRb1/1rR3qQ/1kN4q b - - 0 1 legal: proof: d4 b5 g4 f5 f4 g5 a4 c6 axb5 h6 d5 cxd5 e4 Na6 exf5 Nb8 Be3 gxf4 g5 Rh7 g6 Qb6 Bf2 Rh8 Bh4 Qd8 Bg5 hxg5 Kf2 e5 Kf3 Ke7 Kg4 Kd6 b4 a5 h4 f3 c4 a4 g7 a3 f6 a2 Kf5 e4 Kg6 Ke5 Kf7 e3 h5 Ke4 c5 e2 h6 e1B c6 f2 h7 g4 b6 g3 c7 g2 b5 Ra5 b7 Be7 b6 Ba3 Qd3+ Kf4 Ne2+ Ke5 Nc1 g1Q Rh5+ Kf4 Nd2 Qh1 Nc4 Ra7 Be2 f1Q Bg4 Qe2 Ne3 Na6 b8Q Bg3 b7 Bf8 Qa8 Qeg2 b8Q Nc5 Qb2 Ra4 Qa5 Ba6 c8R Qb6 Rd8 Rb4 Rb1 a1Q Qba2 Qd4 Rb2 Qe5 Rc2 Qg5 Rh3 Rb2 Rh5 Ne7 g8B Nf5 Rh3 Bh2 Rh5 Ng3 Rh3 Nge4 Rf3+ Ke5 Qad2 Qgf1 Qaa5 Bg3 Qh2 Bb5 Ke8 Ba6 Bf7 Qfg2 Bfh5 Rg8 Kf7 Rg6 h8N Rh6 Bg6 Bb5 Kg8 Bc4 Qb3 Kd4 f7 Bd3 Qbb5 Be7 f8R Bed6 R8f5 Bf8 Rcf2 Bb1 Nf7 Bc2 Qa7 Kc3 Rd2 Rb1 Qd3+ Kb2 Qc7 Ka1 Rdf2 Rb2 Qa7+ Kb1 Qa5 Qf4 B6h5 Re6 Nh6 Qg5+ Bg6 Nd6 Qc4 Qb8 R5f4 Bf5 Qcc3 Nde4 Rc2 Ra6 Qca3 Qb6 Qd3 Qe7 Bf7 Bg6 Be8 Qg5 Rf5
2b1B3/N2rNK1k/2qqR3/1nq2b2/qB1N1Q1b/2QRp1p1/B7/1R2B1qn b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 b4 fxe4 g4 h5 Ke2 hxg4 Ke1 a5 Ba3 a4 Bc1 Ra5 bxa5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Kf7 c4 Kg6 h4 d5 f4 e5 a6 a3 c5 e3+ Kd3 e2 h5+ Kh7 c6 e1Q a7 g5 a8B g3 f5 a2 h6 g4 c7 g2 b6 g3 b7 Qh4 f6 Bc5 f7 Qe7 f8B Na6 b8R Nf6 Qd2 Ne4 Ne2 g1Q Qf4 Qf6 Bg2 Be7 Rb6 Qef2 Na3 Qc6 Bd2 Bh4 Rd1 a1Q Nb5 Qa4 Bfb4 Rd8 Na7 Bf5 c8Q Nc7 Be1 Rd7 Bf3 Nb5 Bh5 Qff1 Be8 Nf2+ Kd2 d3 Ke3 e4 Nd4 Qc5 Re6 d2 Rb1 d1B Bc6 Kh8 h7 Qfg2 Ba8 Kg7 h8N Kh7 Ng6 Bdg4 Ne7 Bh3 Rd1 Bhg4 Rd3 Bh3 Qe5 Bhg4 Kf4 e3 Qd6 Qf3+ Ke5 Qfg2 Rh2 Nh1 Bb7 Qf3 Rb2 Bh3 Rb1 Bhg4 Ne2 d4+ Bd5 Bh3 Rc3 d3 Nd4 d2 Rd3 d1Q Qdc7 Qb6 Ba2 Qfg2 Qc3 Qgc6 Qb7 Qcc5+ Qd5 Qcc6 Qf3 Qc1 Qf4 Qca3 Qg5 Qbc5+ Kf6 Q5d6 Kf7 Qc1 Qa3 Q1c5 Qc3 Rc7 Ne2 Be4 Rf6 Bc8 Nd4 Bef5 Re6 Rd7 Qf4
2Q4r/1q4Q1/1n1Bq1bq/K5NN/3qp1R1/1QN1n2q/2Np2BR/3rnkB1 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g6 axb5 Bh6 d4 cxd4 g5 fxe4 f4 Bg7 f5 gxf5 g6 f4 Ne2 Bh6 Ng1 Bg5 hxg5 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 e5 c4 Ke7 b4 Ke6 c5 Kf5 c6 d5 g7 h5 c7 a5 g6 a4 b6 f3 b7 Kg4 b5 Kg3 b6 Kf2 Qb3 d3 Kc3 a3 Kb4 e3 Qb2+ d2 Kb5 e2 Bg2 e1N Qb4 d1Q Ra2+ Qe2+ Qc4 d4 Rc2 a2 Nd2 a1Q Rh4 d3 Re4 h4 Rg4 h3 Qb3 h2 Nb1 h1Q Nc3 Bf5 c8Q Nd7 b8N Qf6 b7 Ne7 g8Q Nb6 g7 Bg6 Nc6 Nf5 b8B Ne3 Bd6 e4 Kb4 Qh6 Nd4 Qe6 Qgf8 Qd2 g8N Qb1 Nf6 Ra1 Nh5 Qb2 Qg7 Qb1 Bh1 Kf1 Nh3 f2 Ng5 Qd1 Re2 d2 Ba3 Qdc1 Ka5 Qcb2 Bf3 Qd3 Bh1 Rd1 Nc2 Qdd5+ Bac5 Qb7 Nb1 Qd4 Bg2+ Kg1 Nc3 f1Q Na1 Qf3 Nc2 Qh3 Bf3+ Kf1 Rh2 Nf5 Bh1 Qdf6 Bg1 Qd4 Bf3 Ne3 Bg2+
KNnr2n1/1R1Q1Q1n/B4bR1/1R3qRN/k1bpn1b1/5N2/2Qqp3/5Bn1 b - - 0 1 legal: proof: d4 a5 g4 b5 e4 c5 a4 cxd4 axb5 f5 f4 fxe4 f5 h6 g5 Ra6 Bd2 Rf6 gxf6 Qb6 Bc1 Qd8 Bg5 hxg5 Kf2 d5 b4 Kd7 c4 e5 h4 d3 Ke3 g4 b6 Kc6 b7 g5 f7 a4 c5 Kb5 f6 a3 h5 g3 c6 a2 c7 g2 h6 g4 h7 g3 Nf3 g1N Qb3 g2 Nbd2 Be6 c8B Nd7 b8R+ Nb6 Rb7 Bg7 f8Q Nh3 f7 g1N Qe7 Ng5 f8Q Bf6 Qff7 Qd7 Rb1 a1N Qc2 Nb3 Rh5 Ka4 b5 Bg4 Rb2 Qf5 Qd7 d4+ Kf2 Ne6 Rg5 e3+ Kg3 e2 Ne4 e1Q+ Kg2 d2 Ng3 d1B Nh5 e4 Rb1 Na8 b6+ Kb4 Rg6 e3 Rb2 Ka3 Rg5 Nd2 Rb5 e2 Rg6 Ne7 Rg5 Rf8 h8R Ne4 Rhg8 Rd8 R8g7 Nf8 R7g6 Nf2 Kg3 Ng8 Kg2 Nh7 Kg3 Qd3 Kf4 Qb4 Qde7 Ne4 Qd7 Be7 Ke5 Qbd2 Kd5 Bf6 Qc7 Ba4 Qc2 Bb3+ Kc6 Ka4 Ra7+ Qa5 b7 Qd2 b8N Nb6 Ba6 Nc8 Kb7 Nc3 Qc1 Bc4 Ka8 Ne4 Rab7 Qc7 Qg7 Qc5 Qgf7 Qf5 Qc2+
7b/RB2QQ2/K1R1bNNn/6qB/pB1bbp1B/2b2b2/5b1k/Q3rN1r b - - 0 1 legal: proof: d4 c5 Kd2 b5 Kc3 h5 f4 d5 e4 Qb6 g4 hxg4 a4 Qf6 axb5 Qxf4 Bh3 Qf2 Kb3 Na6 Bf1 Nb4 Ra3 cxd4 Ra1 d3 Nc3 d4 Nb1 Nd5 exd5 Rh7 Kb4 Rh6 Kb3 Rh8 Ka4 Kd7 Ka5 Kd6 c4 Ke5 b4 f5 h4 g5 d6 e6 c5 g3 h5 d2 b6 Kf4 b7 g2 b8Q Kg3 d7+ f4 d8Q d3 c6 e5 h6 e4 c7 g4 b5 e3 b6 e2 b7 e1B h7 Bg7 Ba3 Qc5+ Ka6 Nh6 Be2 Qg5 Bb4 Be6 Nf3 g1B c8B Bgf2 Ne5 Kg2 Nd7 g3 Bh5 Bf6 Qa4 d1B Qe7 d2 Qc7 Bf3 b8B d1B Bb7 Be4 Nd2 Bdf3 Nf1 Bec3 Ra3 Re8 h8N Bg7 Ng6 Bh8 Rh3 Kg1 Qf7 g2 Nf6 Re7 Rg3 Kh1 Qd1 g1B Qa1 Bfd4 Qd6 Bgf2 Bc7 Rg8 Rg2 Rg7 Ra5 Rh7 Bd8 Re8 Qe5 Re7 Rc5 Re8 Rc6 Re7 Kb5 a5 Ka6 a4 Qc5 Bg3 Rb2 Re8 Qce7 Bgf2 Ng3+ Kh2 Rd2 Be3 Rd7 Bed4 Nf1+ Kh3 Qc5 Bc4+ Kb6 Ng8 Ba6 Bc2 Ra7 Qh4 Nd7 Re1 Bb7 Be6 Ka6 Bce4 Bg4+ Kg2 Qcf8 Rh5 Bf6 Nh6 Q8e7 Qg3 Bg5 Rh1 Bh5 Kg1 Bh4 Qg5 Nf6 Kg2 Ng3 Kh2 Nf1+
R1R1qB2/1q2q3/N1Bnk2N/R1Q1r1R1/1b2Q3/1KQr1p2/5npn/5rNq b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 Ke7 c4 f5 Kc2 d5 b4 a5 e4 h5 b6 a4 g5 a3 e5 a2 g6 h4 c5 h3 c6 f4 c7 h2 c8Q f3 b5 d3+ Kc3 d4+ Kc4 d2 b7 d3 e6 Nc6 b8R Qe8 g7 Nd8 b6 Nh6 b7 Ndf7 Nc3 Ra3 Nb5 Ng4 Qe1 d1R Qc3 d2 Ra8 Rh5 b8R Re5 Nc7 Nd6+ Kb4 Rde1 Bb5 d1N Bc6 Ndf2 Na6 Rf1 Bh6 Kf6 Qc5 Rd3 g8N+ Kf5 Rb5 Qe7 Rc1 a1Q Ra5 Qb2+ Ka4 Qe8 Rc4 Be7 Bf8 Qb7 Nh6+ Kf6 Nh3 g1Q Rc2 Qg2 Rg1 h1Q Qc3 Nb5 Kb3 Bb4 e7 Nd6 Qc7 Nh2 Qc8 Qed7 e8Q Qe7 Qc7 Ke6 Qg6+ Qf6 Qe4 Qe7 Qb6 Nd1 Qc5 Qe2 Rg2 Nf2 Ng1 Nhg4 Rh2 g2 Rh5 Nh2 Rg5 Qe3 Rca2 Qf4 Rc8 Qff7 Nb8 Qee8 Ra8 Qf6 R2a5 Qfe7 Na6
Rb4N1/2npRnQQ/1N1b4/nbbp2rB/k1r5/6b1/BKR2B1Q/4R1r1 b - - 0 1 legal: proof: d4 g5 a4 e5 h4 b5 axb5 c6 f4 exf4 d5 cxd5 g3 fxg3 Qd4 g4 Qd1 Qg5 hxg5 Bb7 Be3 Ba6 Bc1 Bc8 Kd2 h5 Kc3 f5 b4 a5 e4 a4 g6 g2 g7 h4 b6 a3 b7 a2 b5 g3 e5 f4 b6 f3 e6 f2 e7 h3 Be3 h2 Nd2 Ra7 Nc4 Nh6 g8Q Ra3+ Kb2 Na6 b8Q Nf7 b7 Rh4 Nh3 g1B Nb6 g2 c4 Nc7 c5 Rc4 c6 Rac3 Bc5 Rg3 Qh7 Rg5 Bd3 f1N Nf2 Ne3 Ne4 Bf2 Qg1 Bh4 Re1 Bg3 Bb1 a1B+ Ka2 Ne6 c7 Bae5 Ka3 Bd6 Ba2 Bg7 Kb3 B7e5 Re2 Bef4 Kb2 Bfe5+ Bd4 Bef4 Qa1 g1B Bc5 B1f2 Rhe1 h1R Rc2 Ng4 Rce2 Nge5 Be3 Bg1 Bf2 Nc6 Re3 Na5 R3e2 Rh6 Rc2 Rhg6 Rce2 Nfd8 Re3 Rg7 Nf6+ Kf7 e8B+ Ke7 Bh5 Nf7 Qa7 Rg8 b8R Ba6 c8R Bb5 Ra8 Bb8 Rc7 Bd6 Nc8+ Kd8 Rc6 Nc7 Re7 R8g7 Ng8 R7g6 Bb6 Bgc5 Qa6 Rf6 Ba7 Rf1 Qb7 Rg1 Qb6 Bb4 Qf2 Bbc5 Qh2 Ne6 Ra6 Kc7 Bb6+ Kc6 R6a7 Ba6 Rc7+ Kb5 Rc6 Ka4 Ba7 Bb4 Bf2 Bb5 Rc5 Nc7 Rc6 Re4 Rc2 Bbc5 Qc1 Rf5 Qch6 Rg5 Q6g7 Rc4 Nb6+
1nr2R2/nq5r/2qn2Qk/nR3RnB/B1Q1Qn1K/1p1b2Np/4N3/1QN5 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Na3 f5 Nb1 f4 h4 g3 Bb2 Ra4 Bd4 Be7 Bf2 Bg5 hxg5 Nh6 g6 Bg4 Qc2 gxf2+ Kd1 Bd7 g4 Ra7 g5 Ra8 Kc1 Ng8 Qd1 Bc8 e4 Kf8 d4 Kg7 Kd2 h5 Ke2 c5 Kf3 b5 a4 f5 a5 c4 a6 c3 d6 h4 a7 b3 d5 h3 e5 b4 d7 c2 d6 c1N e6 b2 e7 Qc7 d8R Nd3 e8B Ne7 d7 Rh7 Be2 f1N Nd2 b1Q Ne4 Qc6 Ra5 Ba6 Rb5 Ne3 Qf1 Qb3 Qb1 Nc8 Bd1 Qbd5 Ba4 b3 Ne2 Nc4 Rf1 Na5 Nc1 Qb7 Bf7 Qc4 Rf8 Qcc6 Rd5 Bb5 d8N Ba6 Ng3 Bb5 Ke2 f3+ Ke3 f2 Kf3 f4 Kg4 Bc4 Rb5 f3 Be8 Nf4 Bf7 Qd5 Nc6 Bd3 Nd4 Qc4 Nde2 Qcc6 Rg1 f1N Rg2 Qcb6 Rf2 Nd2 Rf1 f2 Be8 Nh5 Kh4 Ndc4 Rff5 Q6c6 Rf8 Na6 Bf7 Rb8 a8Q Na7 Be8 Rc8 Rff5 Kg8 g7 Nb8 Bg6 Nf4+ Bh5 Rh8 Rf8+ Kh7 g6+ Kh6 g8Q Rh7 g7 Nd6 Qf7 Qbd7 g8Q Qdb7 Re1 f1N Qc4 Nd2 Rf1 N2e4 Rf2 Nd5 R2f5 Nf4 Qgf7 Ng5 Qe8 Qg7 Qee4 Qgd7 Qb7 Qdc7 Qb6 Q6b7 Qbc6 Qcb6 Qce8 Q6c6 Qg6+
2B3bk/p4RQ1/Q1R1b3/2Rp2br/3N1B1q/r1r1q1Q1/bn2RN2/K1Br4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 Kd2 f5 e4 Kf7 c4 Kg7 Kc2 h5 b4 d5 Kb2 h4 c5 d3 b6 g2 g6 h3 b7 d2 b8Q h2 b5 g3 b6 f4 b7 f3 e5 f2 c6 Ne7 e6 Nf5 e7 Ne3 e8R Be6 c7 Be7 c8R Bg5 Qe2 d1R Nf3 g1R Ra5 g2 Rac5 Rh5 Qg3 Nc4+ Ka1 Nb2 R8c6 Rc8 b8B Qf6 Re7+ Kh8 Qa6 Qf4 Rec7 Qh4 Nd4 Rd3 Be2 Rgd1 Nc3 g1Q Bg4 f1B Rf7 Qe3 Bf4 Bh3 Rf1 h1B Re1 Be4 Re2 B4f5 Ne4 Rc7 Rf8+ Bg8 Rf7 Bf1 Nf2 Be6 Bf5 Rc3 Bg4 Rb7 Bh3 Rbb3 g7+ Kh7 Rd2 Bc4 Re2 Ra3+ Kb1 Ba2+ Ka1 Bd7 Bg4 Be8 Bc8 Bd7 Ne4 Bf5 Nf2 Be6 Rfc7 Bgf7 g8Q+ Kh6 Qd8 Kh7 Qe7 Kh8 Qf8+ Bg8 Rg7 Rc2 Rf7 Rcc3 Qg7#
2B1RK2/n1B5/2B3p1/RQnr1nrb/2b3rb/QNb1B3/1rQp1N1k/N7 b - - 0 1 legal: proof: h4 e5 a4 c5 d4 cxd4 f4 exf4 g3 fxg3 h5 b5 axb5 g6 h6 Qf6 Nc3 Bc5 Nb1 Qg7 hxg7 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 Kg4 c4 h5 b4 a5 c5 f5 c6 g2 e4+ Kg3 e5 f4 e6 f3 c7 h4 e7 h3 Kd6 a4 b6 h2 b7 f2 b5 d3 b6 a3 Be3 d2 Qc2 d1R+ Qd3 a2 Nf3 g1R Nbd2 Nh6 g8Q Nc6 b8Q Ra5 b7 Na7 Nc4 Rg5 Bg2 f1B Na5 Be2 Nd2 Bh5 Ndb3 Nf5+ Kc5 d5 Qc2 d4 Bc6 Be6 c8B+ Kh3 Qa8 d3 b8B d2 Bc7 R1g4 Re1 Bc4 Qd5 h1N Qdd3 Bh6 e8N Nhg3 Nf6 Rd8 Ne4 Kh2 Nf2 Rb1 Qb8 Rb2 Qb5 Bg7 Qdc3 Bf6 Qcb4 Rd3 Qa3 Nd4+ Kd6 Ne6+ Bd5 Bc3 Ke7 Nc5 Bc6 Rdd5 Kf8 Bf6 Bef4 Bd8 Re8 Bf6 Be3 Bd8 Re1 a1B Re5 Nf5 Re2 Ra2 Re1 Bc3 Na1 Rb2 N5b3 Rg3 Bd4 Bf6 R1e4 R5g4 Be3 Bh4 Re8 Bf1 Ra4 Bc4 Ra5 Rg5 Bd8 R3g4 Bc7+
r2R2qq/1B4NQ/NRK1QNn1/2R3n1/1pkrn2Q/1r3p2/1n3Bn1/3Nn3 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 Ba3 g5 Kc1 b6 Kd2 Bd6 Bc1 Bb7 Kd3 Bf3 Kd2 Bg4 h3 f3 Bg2 Bf4+ gxf4 Bh5 Bf1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 Kd3 Kf7 Kc4 Ke6 Kb5 Kd5 c4+ Ke4 a4 h5 a5 d5 c5 d3 c6 Kd4 e4 d2 e5 g2 f5 h4 a6 b3 f6 h3 e6 h2 e7 b2 e8N Rh4 a7 Nh6 f7 Rh5 f8R Rh4 c7 Nf7 c8Q Ng5 Nf6 Nc6 Qe6 Qb8 Nc3 Ne5 Rb1 Ng6 Kc6 b5 Nh3 g1Q Qde1 d1N Rd8 Ne3 Nd1 Ng2 Nf4 b4 N4h5 Qe5 Ba6 f1N Bb7 Nfe3 Ng7 Nc2 Be3+ Kc4 Bf2 Qc3 Ra1 b1R Ra6 Rb3 Rb6 Qd4 Q1e4 Nce1 Qf4 Qf1 Rg1 h1N Qfe4 Ng3 Qf4 Rb8 a8N N3e4 Nc7 Ra8 Na6 Qa1 Rh1 Qg1 Rh2 Kd3 Rh3 d4 Rd5 Kc4 Rg3 Nh7 g5 d3 Rg4 d2 Qg3 Ngf8 g6 Ng5 Rf4 Rg4 Qh4 Qe5 Nf5 Qa1 g7 Ng6 g8Q Qd4 Qgh7 Qb2 Nc3 d1N Ng7 Qa1 Rff5 Nb2 Nd1 Qa5 Rbb5 Qd8 Rb6 Qh8 Rfe5 Ng3 Re2 Rd4 Ree5 N3e4 Rd8+ Kd3 Red5 Kc4 Rg8 Qh2 Rgd8 Qb8 R8d6 Qbf8 Rd8 Qfg8 Rc5+
5Qn1/Q3p3/RrNnrRk1/7q/p5B1/1Rn1n1n1/rq1nBK2/1N1B2BQ b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 f4 f5 g3 fxe4 f5 bxa4 Bg2 g5 Bf1 g4 Qf3 Ba6 Qd1 Bh6 h3 Bf4 gxf4 g3 Kd2 Be2 Ke1 Bg4 hxg4 Qb6 Be2 Qc7 Bf1 Qd8 b4 Kf7 c4 a5 g5 d5 b5 h5 f6 d3 b6 d2+ Ke2 e3 c5 d4 f5 g2 b7 d3+ Kf3 a3 c6 h4 c7 h3 c8B h2 Ra2 e2 Ke3 e1R+ Kf3 Na6 b8Q Qe8 Qa7 Nc7 Be2 Nb5 Kf2 Rh6 Nf3 g1N Nd4 Nd6 Nc6 Nf3 Rb2 a2 Rb3 a1Q g6+ Kf8 f7 Kg7 f8R Qb2 Rf6 Qf7 Bf1 Re6 Be2 Qe8 Rg1 Qf7 Rg5 Qe8 Qh1 d1N+ Kg2 Ne3+ Kf2 d2 Rh5 Kh8 g7+ Kh7 Rh4 Qh5 Ra4 Rb8 Bd1 Rb6 Ba6 Rg6 Bae2 Rg4 Raa3 Ra4 Ra1 Qe5 Ba3 Qb2 Bc5 Ra2 Bd4 Nh6 g8B+ Kg7 Bf7 Ng8 Be8 Kh7 Bd7 Kg7 Rf8+ Kh7 f6 Kg6 f7 a4 Ra8 Ne5 f8Q N5c4 Bc5 Re4 Bdg4 Re6 Qg2 h1N+ Kg1 Ng3 Qh1 Nd5 Kg2 Nc3 Bg1 Qb5 Kf3 Qh5 Kf2 Qc1 Bc2+ Nce4+ Kf3 d1N Qa5 Ncb2 Na3 Qcg5 Rb1 Nc3 Rf1 Nbc4 Bcd1 Qd2 Nb1 Qc1 Kg2 Qb2 Rf6+ Kh7 Qa6 Ned2 Kf2 Ne3 Qb7 Ndf5 Ra6 Nd6 Rf7+ Kg6 Qa7 Rb4 Rf3 Rb6 Rf6+
3n4/3r1BB1/NpQQ2qr/2q1B3/n1n3r1/nr2R3/1pNB1KR1/r2kR1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
6Rb/RK2p3/1bQrN2Q/r1pBk1QN/1rb3Qb/5B2/b1q1b3/1rB3R1 b - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 h4 f5 c4 fxe4 f4 dxc4 g5 Nd7 f5 Nc5 Nf3 Nf6 Ng1 Ne6 gxf6 g5 Bd3 g4 Bf1 Ng5 hxg5 Ra6 Bd3 Ra7 Bf1 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 h5 a5 h4 d3 b3 a6 h3 a7 b2 g6 c3 g7 b4 g8R g3 f7 h2 f6 e3 Ne2 c2 Nd2 b1R Nf3 b3 Nf4 b2 Bg2 e2 Nh5 e1B Ng5 Be6 Bd5 g2 Rg1 h1B Qg4 Bg7 f8Q Rh6 Qe8 Bh8 Ra4 Bf7 Ne6 Bh4 Kc4 c6 d4 Qc8 Qg5 Rb8 a8B Rb5 Bf3 Ra5 d5 Qc7 Qg4 Ke5 d6 Qc8 d7 Qc7 Rd1 g1B d8Q Bb6 Rg1 c5 Bfd5 Bf3 Qc6 Bd1 Ra1 Qd6 Bf3 Qd2 Qdd7 Be2+ Qd3 Ra4+ Kb5 Rb4+ Ka6 Qc3 Ra2 Ra1 Ra3 b1B Kb7 Ba2 Qd2 Bac4 Ra6 Ra5 Ra7 Qd3 Qdg5+ Qf5 Bd2 c1R Bd5 Rcb1 Bc1 Bg6 f7 Ba2 f8Q Bf7 Nd4 Rd6 Qfh6 Be6 Bf3 B6c4 Ne6 Rba4 Qb5 Bed3 Kc8 Rab4 Bad5 Bf1 Kb7 Bfe2 Qgg6 Qe4 Qc6 Qc2 Qg6g5+
RQq5/K1b3N1/Rnrb2n1/1pQ3r1/ppBB2q1/R1N1B1n1/2N3R1/2qk4 b - - 0 1 legal: proof: b4 d5 g4 h5 f4 hxg4 c4 e5 cxd5 exf4 b5 b6 a4 Bf5 a5 Bc8 a6 Bb7 axb7 c6 Ra4 cxb5 Ra1 b4 Kf2 Kd7 e4 Kd6 d4 g5 h4 a5 h5 f5 h6 g3+ Kf3 b5 h7 g2 Qc2 a4 Rh2 Qc8 Bc4 Nd7 Ra3 Nb6 Nc3 Ra6 Be3 Ne7 Nge2 g1B Rg2 Rg8 h8B Ng6 b8R Be7 Ra8 Bh2 Kf2 g4 e5+ Kd7 d6 Kc6 d7 f3 d8R f4 e6 Bd6 e7 g3+ Ke1 f2+ Kd2 f1N+ Kd3 f3 e8N f2 Ng7 Bc7 Rd7 Bd6 Rda7 Bc7 d5+ Kd6 Nb1 Ke5 Nd4 Bd6 Nc3 Bc7 Rg1 g2 d6 Ng3 d7 Bd6 d8Q f1Q+ Qe2 Qc1 Nc2 Bc7 Qf8 Bd6 Qef3 Bc7 Qb7 Bd6 Qb8 Bc7 Rd1 g1Q Rd2 Qgd1 Qf2 Qdg4 Qg1 Bd6 Rg2 Bc7 Bf2 Kf4 Kd4 Kf3+ Kc5 Nf1 Be3 Bhd6+ Kc6 Ng3 Ne8 Nf4 Bhd4 Rg5 Ng7 Ng6 Qh2 Nf5 Qe5 Ng3 Qc5 Nd7+ Qcb6 Qf8 Kb7 Qff5 Qa5 Rc6 Qb6 Qf8 Qc5 Nb6 Ne4 Qe8 Ra6 Qee6 Bb3 Qe8 Ka7 Qec8 Nf2 Ke2 Ne4+ Kd1 Bd5 Nf1 Bc4 Ng3 Nc3+
1NnQ1Q2/5BKN/1p1R4/R1qNn3/1pB1bq2/p1n1krbr/1b3N1R/6B1 b - - 0 1 legal: proof: b4 d5 a4 c5 e4 cxb4 c4 g5 cxd5 f5 exf5 Qa5 h4 gxh4 Qg4 Qxa4 Qd1 Qa2 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 h5 Kg6 e5 f4 a5 f6 b6 f7 e4 d6 e3 g5 e2 f5 e1B f6 a4 d7 h3 d8N h2 Nh3 h4 Nc3 Bb7 Nd5 Bg3 Bc4 Bg7 f8N Nc6 Nf2 h3 f7 Qc2+ d3 Bf6 Nh7 Nge7+ Kh6 Rb8 f8Q Ne5 g6 Nc8 g7 Qc3 g8B a3 Ra2 Bc6 Bf7 Ra8 Rg1 h1Q Rd2 h2 Bb2 Bfh4 Kg7 Qf3 Rg2 h1N Rh2 Qf4 Re2 Ng4 Re5 Ra7 Ba1 Re7 Rh5 Re3 Bb2 Bg5 Bc1 Rf3 Be3+ Ke5 d4+ Kf5 Qc5 Ne5 Qf8 Ba8 Nc6 Qc2 Ne4 Nf2 Nb8 Bc6 Qd2 Nd1 Bg1 Nc3 Nf2 Qc1 Nc7 Be4 d5 Qc2 d6 Qc1 Qd1 Qce3 d7 Qc5 Rh6 B5h4 d8R Be7 Rhd6 Bg5 Nf6 Rh3 Nh7 B5h4 Nd5 Bf6+ Kg8 Nd3 R8d7 Ke5 Rc7 Kd4 Ra7 Bg7 Ra5 Be5 Ndf6+ Ke3 Kg7 Bd4 Qa4 Ne5 Qae8 Na4 Qd7 Bb2 Qdd8 Nc3 Nd5+
rb1b2QK/Q2BpN2/1QR2p2/3b2B1/1r2Bnq1/1Q1N1R2/3R1p2/qr2k1n1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 h5 a4 g5 axb5 gxf4 e4 Nc6 g4 Nd4 g5 Ne2 e5 Nc3 Qg4 hxg4 e6 Ne2 Na3 Bxe6 Nb1 Bc8 Kf2 Kd7 d4 Kd6 b4 c5 h4 a5 h5 c4 h6 a4 h7 c3 g6 g3+ Kf3 f6 Ke4 c2 b6 a3 b7 g2 b8Q+ Qc7 b5 a2 b6 f3 g7 f2 b7 Be6 Bg5 c1B Nc3 Ra7 Nb5+ Kd7 d6 Kc6 d7 Nf4 d8R Ra4 Nh3 g1R Bg2 Kb6 Qa7+ Kc6 b8Q Bc4 Kf5+ Bd5 Be4 Ba3 Rc1+ Bc5 Nd6 a1Q Qb3 Rb4 Nf7 Kb5 Rd6 Bb6 Rcc6 Rd1 Re1 Qb7 Re3 Rb1 Rf3 Bd8 Rd7 Qba6 Rdd6 Q6a4 Rd7 Ng2 Kg6 Nh6 g8B Nf5 Nf4 Bh6 Nd3 Ng3 Rdd6 Ne2 Rd7 Bc4 d5 Ng1 d6 Be6 Bc1 Bd2 Kg7 Bf4 Bd2 Be5 Bf4 Bd5 Bg5 Bc7 Rd8 Nf4 d7 Bed6 Rb8+ Bb6 d8Q Be5 Rbc8 Bb8 Rc2 B6c7 Rd2 Bb6 Rc6 B6c7 Qd6 Bd8 Qa3 Qd1 Qb3 Qe2 Nh6 Qd1 Be6 Re8 h8Q Qe2 Rg3 Qg4 Qg8 Rf8 Nf7 Re8 Kh8 Rf8 Ra6 Re8 Qa3 Kc4 Bd7 Rf8 Rf3 Re8 Qa5 Kc3 Qe6 Rf8 Rd6 Re8 Q5b6 Rf8 Rd1 Re8 Rc1+ Kd2 Rcc6 Ke2 Qe5 Kd1 Qc3 Rf8 Qb3+ Kd2 Nde5 Ke1 Nd3+ Ke2 Re6 Bdc7 Qaa4 Ba7 Bf5+ Kd2 Re1 Ra8 Be4 Bab8 Qaa7 Bd8 Rd1+ Ke2 Rd2+ Kf1 Nde5 Ke1 Nd3+
1N2k2n/pb3N1r/4r1R1/2pbq3/B4p2/5R1Q/nRqQQ1N1/qQB3bK b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 e5 axb5 exf4 h4 gxh4 e3 fxe3 g4 f5 b4 c5 d4 h5 b6 e2 Kf2 e1Q+ Kg2 f4 g5 Rh7 b5 Kf7 d6 Ba6 d7 Qb4 d5 Bc8 d6 Qd4 g6+ Kf6 g7 Kf7 b7 Na6 b8Q Qb6 d8Q Rh8 d7 Nh6 g8R Qe5 Nh3 Bg7 Ra2 Nb4 Qe2 Rh7 Nd2 Bb7+ Nf3 Qg6+ Qg5 Qgf5 d8Q Qc2 Rb2 Na2 Qdd2 Bd5 Qb6 Re8 Qg3 Re6 Ng5+ Ke7 Nf7 h3+ Kg1 h4 Ne1 Kd7 Qgf3 h2+ Kg2 Bh8 Rg6 Ke8 Rg1 Bf6 Kh1 Bb7 Ng2 Bd5 Nd8 Nf7 Qh3 Nh8 Nf7 Bg7 Rg3 Bb7 Rf3 Bf6 Ne3 Bd5 Rg6 Bg7 Kg2 h1B+ Kg1 Bf6 Ng2 Bb7 Qbd6 Bd5 b6 Bg7 b7 Bf6 Qg3 h3 b8N Bh4 Qge1 Bf2+ Kh2 Bb7 Q6d3 Bd4 Q3e3 Bd5 Kg1 h2+ Kf2 Bc6 Rh3 Bd7 Qb5 Qb1 Nh4 Qd3 Rc2 Qf6 Bb2 Bb7 Ng2 h1Q Qa6 Qdf5 Bb5 Qg7 Ba4 Re5 Qae2 Bdc6 Qa1 Qb1 Bc1 Re6 Kg1 Qge5 Kh1 Qb2 Qb1 Qa1 Rb2 Qc2 Qg3 Bg1 Qh2 Rg7 Rf3 Rh7 Rb5 Be4 Qh3 Bed5 Rb2+
R1NnB2k/b1N3nn/r6p/3p4/n1Rb3B/1np3Q1/2QBr2B/q3QR1K b - - 0 1 legal: proof: f4 e5 h4 exf4 d4 g5 b4 gxh4 a4 b5 d5 d6 a5 Nc6 Kf2 Ba6 c4 Qd7 cxb5 Qc8 b6 Qe6 b5 Bb7 a6 Qxd5 axb7 Nb8 Ra6 Qd3 Ra1 Qd2 g4 c5 Kg2 a5 g5 f5 g6 d5 g7 Kf7 Ba3 c4 Nc3 a4 Nb1 h3+ Kh2 f3 Be7 h6 Bh4 a3 Qc1 f4 Qc2 f2 e4 a2 e5 f3 Ne2 Bc5 Nd4 Ra6 Rg1 Qc1 Nd2 Nf6 g8R Nh7 R1g4 Nc6 b8B Nd8 b7 Ba7 Kh1 h2 b6 Qa3 Bd3 f1N Ne6 f2 Nc7 Ne3 Rf1 a1B Ne4 Bd4 Be2 c3 Bb5 Qa1 Re8 Ng5 e6+ Kg7 e7 Nd1 Nd6 Nb2 Nc8 Na4 Rf8 Rg8 e8Q Kh8 Qe1 Nh7 Re4 Nc5 Be8 Na4 Rg1 f1N Ref4 Be3 Rc4 Nd2 Rgf1 Bc5 Nb5 Bg1 Bf4 Nb3 b8Q Be3 b7 Bed4 Rf6 Rg4 Bd2 Re4 Qbg3 Re2 b8B Nf7 R6f2 Nd8 Kg2 h1N Nc7 Nf7 Kh2 Nd8 Rg2 Nf2 Rgg1 Ne4+ Kh1 Nef6 Rg2 Nh5 Rgf2 Ra5 Rf6 Ng7 Ra6 Bac5 Ra8 Ra6 Nb5 Bb6 Be5 Ba7 Nc7 Nc6 Qg1 Nd8 Bh2 Bf2 Qg4 Bfd4 Qgg3
3k2b1/1R2Nb1q/p2Npb2/1rNnNn2/K5QR/p2Q4/2nB3Q/4bBrR b - - 0 1 legal: proof: b4 b5 e4 c5 a4 cxb4 g4 bxa4 c4 f5 exf5 d5 cxd5 h5 Bd3 hxg4 Bc4 Be6 Bf1 Bc8 d4 g5 Kd2 a3 Kc2 a6 Kb3 g3 f4 g4 h4 g2 d6 g3 d7+ Kf7 f6 e6 f5 Ra7 h5 Qc7 d8Q Nd7 d5 Be7 h6 Nb6 d6 Nd5 d7 Rb7 h7 Nh6 Nc3 Rb5 Na4 Rg8 Nf3 g1N h8Q g2 Rh4 Ne2 Nc5 g1B Ka4 b3 Bd2 Nd4 Qe2 b2 Qe4 b1B Qg4 Bd3 Rb1 Rb8 Rb7 Nc2 Rh1 Qh2 Qh7+ Rg7 Qc7 Be3 d8N+ Ke8 Ne5 Bf2 Ndf7 Be1 Qd6 Ndb4 Qdd4 Nd5 Nd6+ Kd8 f7 Bf6 f8N Rg8 Qb2 Bd7+ Qb5 Rg7 Nfg6 Be8 Ne7 Bf7 Qbc4 Be4 Qd3 Qh5 Qge2 Rg1 Qg4 Bg8 Rh4 Qf7 Qh8 Qh7 Rh1 Bg5 f6 Bg6 f7 Nf5 Rh4 Bf6 Rh1 Qg7 Qh2 Qh7 f8R+ Be8+ Rb5 Rb6 Rf7 Rb7 Rg7 Bef7 Rb4 Qg6 Rh7 Rb5 Rh4 Qh7 Kb3 Ra5 Rb7 Rb5+ Ka4
BR2bnQ1/2kp1r2/3n4/2r1NR2/1Q3B1p/b1BKpR1N/1R3r1Q/q1b4r b - - 0 1 legal: proof: h4 f5 e4 c5 exf5 b5 a4 g5 axb5 gxh4 d4 cxd4 c3 dxc3 Ke2 a5 f4 h5 b4 e5 g4 h3 f6 e4 f7+ Ke7 f5 c2 b6 h2 b5 h4 b7 e3 f6+ Ke6 g5 a4 g6 a3 b6 a2 g7 Nh6 g8Q Ra5 Nd2 Kd6 Nh3 Rc5 Bb2 c1B Rb1 a1R Bg2 Nc6 b8R Ne5 b7 Rh7 Nc4+ Kc7 Qd2 Ng6 Bc3 Nf5 Rf1 h1R Kd3 Ra2 Rb2 Nd6 Ne5 Be7 f8Q Rf7 Rf5 Qe8 Qh6 Nf8 Qf4 Qd8 Be4 Qe8 Qdh2 Qd8 Rb6 Rf2 Rb2 Qe8 Bf3 Qd8 Qb4 Qe8 Ra8 Qd8 b8R Bb7 Be4 Qe8 Rf3 Bc6 Ra5 Bd5 Rab5 Be6 Ba8 Qc8 Ra5 Qa6+ Rab5 Qa1 Ra5 Rh7 f7 Bg4 Rab5 Bh5 Ra5 Ng6 f8B Rf7 Bh6 Nf8 Rd2 Rg7 Rc2 Be8 Bf4 Rf7 Rb2 Rb5 Qa4 Nc4 Ng4+ Re5 Qb5 Ba3 Qb4 Nd6 Rd5 Ree7 Rg5 Re5 Rf5 Rc5 Ne5
5b1q/4bNrQ/RKB2R2/Qn2p1pN/1B4q1/Q1Np1b2/1N1kbrB1/5n2 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 d5 h4 g5 f4 b3 h5 b2 b6 d3 f6 g3 f5 g2 h6 d4 h7 d2 b7 Ke3 f7 d3 f6 Qe8 Na3 b1B Qh5 e5+ Kb6 Ra5 c5 Bh3 c6 Qd8+ c7 Qe7 c8B Bf5 Bd7 Qe8 Ne2 g1B Bc6 Na6 b8N Nh6 Bfg2 Ba2 Nc3 Ng4 Nd7 Rg8 h8N Rg7 Qh7 Nc7 Rh6 Nh2 Rg6 Be7 f8Q Nb5 f7 Bd5 Nf6 Bg4 Nh5 Be2 Rf6 Nf1 Ra2 Qa8 Qd8 Bdf3 f8Q Ra4 Ra1 Rf4 Nf7 Qc8 Bb2 d1Q Qc7 Qa8 Qa7 Rf5 Qa5 Qa4 Ra2 Qg4 Ra1 Bf2 Ra2 Be1 Ra1 Kd2 Nc4+ Kc2 Ba3 Bd2 Nd5 Bdb4 Nb2 Kd2 Nc3 Bbd6 Bb4 Qc8 Qd8 Rf4 Qc7 Qh8 Qa8 Bf8 Ra6 Bde7 Qcd8 Be4 Qd5 Rf2 Qb3 Bd5 Qa3 Bdf3 Qd8 Nd4 Qd5 Nb5 Qda2 Bd6 Qa5 Bde7 Q2a3
2b1R3/1B1NN1KQ/2pq1nB1/6Q1/np1r1r2/1RN1br2/BBp5/1Q1q1rk1 b - - 0 1 legal: proof: c4 d5 b4 dxc4 e3 a5 e4 axb4 h4 f5 exf5 g5 a3 bxa3 hxg5 Qd5 Ne2 Qd7 Ng1 Qd8 Ke2 Kd7 Kf3 Kc6 Kf4 Kc5 Ke5 h5 g4 b5 d4+ Kb6 f4 c6 d5 Kc5 f6 h4 g6 c3 g5 e6 g7 b4 f7 c2 g6 a2 d6 h3 d7 h2 f5 Qb6 d8Q Rh3 f6 Nh6 g8B Rf3 g7 Na6 Bh7 Ng8 Nh3 Qb8+ Qc7 Be7 f8Q Ra7 f7 Nf6 Rg1 h1R Nf4 Rh4 Nd5 Rhf4 Nbc3 Rb7 Rb1 a1R Qd8 Bf8 g8B Bh6 f8N Rd4 Rg7 Be3 Bg2 Kc4 Bb2 Nc5 Qg1 Na4 Nd7 Rdf4 Rg6 Kd3 Ne7 Ra7 Bf1+ Kd2 Bc1+ Ke1 Rb3 Rd4 Qh1 Kf2 Bb2 Ra8 Bc4 Rf1 Ba6 Ra7 Bb7 Rdf4 Kd6 e5 Ke6 e4 Kf7 Ra5 Rg4 Rd5 Bg6 Rd3 Kg7 Rd4 Qa5 Qc7 Qh7 Qd6 Rh4 Kg1 Qd5 Rc4 Qd1 Rd4 Rh5 Bf2 Rh3 e3 Qb1 e2 Qa5 e1Q Qg5+ Rg4 Rh2 Be3 Re2 Qd1 Ned5 Bd2 Re8 Be3 Ne7 Rdf4 Ra3 Rd4 Ba2 Rdf4 Rb3 Rd4 Qgh6 Rgf4 Qg5+
2n1B1Bn/p3RN2/k2p4/5q1Q/2RQbNbn/r1pQrqBN/Q7/1K1n4 b - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 b4 exf4 h4 gxh4 c4 Qf6 Kf2 Bc5+ d4 Bb6 c5 Qd6 d5 Qxd5 cxb6 Qd2 g4 Kd8 g5 c5 g6 h5 g7 f5 b7 Kc7 Bb2 Kb6 Nc3 h3 Rc1 h2 Nh3 Qd3 Ke1 d6 e4 c4 e5 h4 e6 f3 e7 f4 e8Q Nh6 g8B Bg4 Qh5 Nf7 Ne2 Nd7 b8N Qf5 Kd2 f2 Be5 f3 Nc6 Re8 Bg3 Re3 Ne5 Kb7 b6 Ka6 b7 Nb6 b8Q Nc8 Rg1 h1B Nef4 Rh6 Bd3 f1N+ Kc2 f2 Kb1 Nh2 Re1 Nh8 Nf7 f1N Be4 Ra3 Qd3 Re6 Bc6 Be4 Be8 Ne3 Rc2 Nd1 b5+ Ka5 b6 Ka6 b7 Nf3 Qa8 Re7 b8Q Re5 Nf2 h3 Qb2 h2 N2h3 h1Q Qad5 Nh4 Qa2 Qf3 Q5d4 Re7 Rb2 Re5 Rb5 c3 Rc5+ Kb7 Rc4 Ka6 Ng6 Ba8 Ngf4 Re3 Re2 Bb7 Rb2 Bc6 Rb7 Be4 Re7
3qBqbn/K3QnR1/1pk2r2/3N3p/1nN2pr1/Q3R3/3Q1R1B/1qr2BQ1 b - - 0 1 illegal: No possible last move, all moves rejected
3N1b2/B4p2/rQ2R3/p1Qp4/2rrR1Q1/rqRB4/kNRK1Nbq/2r1n3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 b4 Ke7 c4 Kd6 e4 h5 e5+ Ke6 c5 Kd5 g6 a5 b6 g2 c6 g3 e6 h4 g7 h3 c7 d6 e7 d3 e8R Kc4 b5 h2 b7 d5 b8Q Bg4 b6 Ra6 b7 Bf3 Kd2 Rh3 Re6 Nf6 g8R Nh7 Ra2 Ng5 Rc2+ Kb3 c8Q Qb6 Qc5 Qb5 Bb2 Ka2 Na3 Qb3 Nc4 Rh4 Nh3 g1Q Qd8 g2 b8N Be4 Qg4 Nf3+ Kc1 Ne1 Kd2 Bf3 Nc6 Qf2+ Be2 g1R Qdb6 Rg3 Nd8 Bg2 Rg5 Re3 Rge5 Qf4 Rf1 h1R Re4 Qh2 Rf3 Rg1 Nf2 Rf1 Kd1 d2 Bd3 Rg1 Rh3 Rf3 Ke2 d1R Rg3 Rc1 Kd2 Rf4 Ree3 Rd4 R3e4 Bf1 Rf3 Rg3 Rfe3 Bg2 Bc3+ Kb1 Nb2 Rc4 Be5 Ka2 Bb8 Rgh3 Ba7 Rf3 Qg5 Rhf4 Qg4 Rg3 R4e5 Rfd4 R5e4 Rc3 Rf3 Qb5 Rfe3 Ra4 Bf1 Rd4+ Rd3 Ra3 Qc3 Qb3 Qcc5 Rc4 Rdc3 Rd3+ Ke2 Rdd1 Ke3 Rdd4 Bd3 Qb4 Ke2 Qb3 Kd2
2Q1R3/q1p1Qk2/2q2n2/QrRqb1rN/1B4B1/2p1K1p1/q2BQ2n/Nq5N b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 d4 h5 Kd2 a5 b4 f5 e4 c3+ Ke3 h4 d5 h3 e5 a4 d6 h2 e6 a3 b6 a2 d7+ Ke7 g5 Nh6 b7 Ra6 g6 Kf6 b5 Ba3 g7 Qf8 d8B+ Be7 g8N+ Kg6 b6 Ra7 Bd2 Ra6 Nf6 Qf7 Nh5 Ra4 Qe2 Ra5 Nh3 g1Q+ Nf2 Bd6 e7 Be5 e8Q Nd7 b8Q Nf6 b7 Rg8 Be7 Rb5 Na3 Rg7 Qf8 Qd5 Re1 a1Q Nc2 Qaa2 Bh3 Rg8 Qfc8 Kf7 Na1 Rg5 Bb4 Qc6 Bg4 f4+ Kd3 f3 Ke3 Qcd5 Qa7 Qc6 b8Q Qcd5 Rb1 Qc6 Rb2 Qgb1 Rg1 h1Q Qa5 Qg2 Nh1 f2 Qd8 f1Q Qbc8 Qgd5 Rg2 Qg1+ Rf2 Qgd1 Rf5 Qda4 Rc2 Q4a3 Rc1 Qa4 Re1 Q4a3 Rf4 Qa4 Rc4 Q4a3 Rc5 Qa4 Qb6 Qa7 Qe7+ Kg6 Qee6 Q7a6 Qh2 Qd8 Bh3 Bd4+ Kf4 Qa7 Qa5 Ng4 Re3 Qdd5 Qe2 Nh2 Bg4 Qcb7 Qed7 Qbc6 Re8 Be5+ Ke3 Qd1 Qe7 Qdb1 Qed8 Kf7 Qe7+
2b2Q2/1R2Br2/7N/1R1b1Qq1/3bR1pp/1r1q1n1B/2bBpNK1/k1q1N2N b - - 0 1 legal: proof: g4 b5 h4 c5 a4 f5 d4 cxd4 e4 fxe4 axb5 Na6 f4 Nc7 f5 Nd5 g5 Qc7 h5 Ndf6 gxf6 Qh2 Ra4 Qxh5 Ra1 Qh2 c4 Kf7 b4 a5 c5 h5 c6 g5 b6 d5 c7 e5 b5 e3 b7 a4 b8Q h4 b6 e4 b7 d3 Bb2 g4 Nd2 e2 Nh3 a3 Qc1 d4 Nf4 a2 Qc6 Bc5 Ng2 Rh7 Kf2 Qe5 Qb5 Nh6 Rb1 a1Q Ne1 e3+ Kg2 Qa6 Ne4 d2 Bc3 d1B Ng3 d3 Bd2 Bb3 Rh3 Bb6 Nh1 Bd4 Rf3 Ra7 Rf4 Bd5+ Re4 Qad6 Qa8 Ra3 b8R Rb3 Rb7 Qf4 Qc5 Qg5 Qaa3 Ng8 Qa8 Ne7 Rb2 Nc6 Qb5 Bd7 c8N Ne5 Ne7 Bc8 Ng8+ Qd7 Qa3 Nf3 Qbc5 Rc3 R2b5 Rb3 Nc2 e1Q Qab4 Qa1 Ne1 e2 Qa3 Be5 Qf2 Qc1 Nh6+ Ke8 Qb4 Rf7 Qa5 Kf8 Qa8 Bd4 Qb8 Re7 f7 Kg7 f8N Kf6 Ng6 Rf7 Nf4 Qd6 Nh3 Qda3 Bb4 d2 Ba5 d1B Bd2 Bc2 Qa8 Bd7 Qe8 Bc8 Qf8 Ba1 Q2c5 Bd4 N3f2 Qa6 Rf4 Ke5 f6 Re7 f7 Qag6 Qd8 Qd3 f8B Rf7 Be7 Be3 Ra4 Bd4 Nh3 Ke4 Qf8 Ke5 Ba5 Ke4 N3f2+ Ke3 Rab4 Kd2 R5b6 Bc3 Re4 Bc6 Qf5 Bd5 Rbb4 Bd4 R4b5+ Rb4 Bad8 Kc3 Ba5 Nd2 Kh2 Kb2 Bh3 Rb3 Bab4 Ka1 Kg2 Nf3 Bd2
1B6/kB2Q2b/1Rb4r/prp1Rr2/1qqp1R2/1N4NQ/B1q4n/4rBKN b - - 0 1 legal: proof: f4 c5 d4 e5 b4 exf4 a4 g5 h4 gxh4 d5 Nc6 dxc6 Bg7 a5 Bb2 a6 bxa6 c3 Ba3 b5 Bb4 cxb4 a5 Qd5 a4 Qd2 Qb6 Qd1 Qd8 Kf2 d5 g4 f5 e4 h5 g5 a5 c7 Kd7 b6 Kc6 e5 Kb7 b5 d4 g6 a3 g7 f3 e6 h3 e7 h4 e8B f4 Qb3 a2 Bf7 h2 Nh3 Rh6 Nd2 Nf6 g8N Rb8 Ne7 Bf5 c8B+ Ka8 b7+ Ka7 Qd3 Bh7 Nf5 Qb6 Rg1 h1Q Nb3 Qh2+ Rg2 Ng8 Ng3 Nf6 Rb1 a1Q Qe2 Qa6 Qe7 Qa4 Bd2 Qb4 Re1 Qe6 Re5 Qec4 b6+ Ka6 Ke1 Ng4 Nf2 h3 Rg1 Qg2 Nfh1 h2 Bd5 Qa4 Bc1 Qc2 Rg2 Qab5 Rf2 Qcb4+ Bd2 Q5c4 Bce6 Rf8 b8Q Rf5 b7 Kb6 Rfe2 Ka6 Qc8 Ka7 Nf2 h1R R2e4 Nh2 Bg8 Rb6 Qcd7 Rb5 b8R+ Ka6 Bb7+ Ka7 Nd3 f2+ Ke2 Ng4 Kf3 Rh4 Kg2 Nh2 Kh1 f3 Rf4 Rh6 Bc1 Rf7 Qh3 Rf8 Rd8 Rf5 Rd6 Rfh5 Rb6 Rf5 Be2 f1B Nf2 Bg2+ Kg1 Bf1 Bd3 Be2 Nfh1 f2+ Kg2 f1R Bd2 Rf2+ Kg1 Bf3 Bf1 Re2 Nc1 Bd5 Ree6 Rg6 Rfe4 Re1 Bf4 Q4d3 Be5 Qcb3 Rf4 Qdc2 Bc7 Rgf6 Re5 Bc6 Bd6 Q3c3 Ba2 Qcc4 Nb3 Rh6 Bb8+
n2b3N/1Bq1rk2/1q3rp1/p5q1/3b1R2/BNpBN1R1/bQKR4/5bQN b - - 0 1 legal: proof: b4 a5 g4 b5 f4 d5 a4 e5 axb5 exf4 c4 dxc4 b6 h5 b5 Na6 bxa6 hxg4 e4 c5 h4 f5 d4 g6 Kd2 g3 d5 g2 a7 f3 h5 c3+ Kc2 f2 e5 f4 h6 c4 h7 f3 b7 Ne7 b8Q Qb6 d6 Qc6 d7+ Kf7 d8R Be6 Ba3 Nd5 Rh3 Nb6 Rg3 Be7 Nd2 Rf8 Nh3 g1B Bd3 f1B Nb3 Bd4 Nf2 Qc7 Nh1 f2 Qb7 Rb8 a8B Rc8 Rd6 Rce8 Qg2 Bd5 Bb7 Bd8 Rc1 Na8 e6+ Kg7 e7 Rf6 Qg1 Kf7 Qd2 Qb6 Re1 Qc7 Re4 Qb6 Kc1 c2 Rf4 Qc7 Qc3 Qb6 Qb2 Qc7 Kd2 Qb6 Be2 c3+ Kd3 c1Q Rd7 Qe3+ Kc2 Qe5 Bd3 Qg5 Rd6 Rg8 e8N Rg7 Nc7 Bc4 Na1 Ba2 Nd5 Bg2 Re4 f1Q Rf4 Be5 Nb3 Ke8 Be2 Re7 Qc5 Kf7 Qg1 Qe1 Bea6 Bf1 Bb5 Qee3 Be2 Qec5 Ne3 Qbc7 Rd2 Bd4 Bd3 Q5b6 h8N+
B4B1q/QN3rp1/nN2n1R1/K1p4q/3rb3/R2p2r1/kqNB3q/B1Q4R b - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 b4 exf4 c4 Qg5 g4 hxg4 Kf2 Bc5+ d4 Bb6 c5 Qd5 cxb6 Qxd4+ Kg2 Qd5+ Kf2 Qd2 h4 Ke7 h5 Kd6 h6 Kd5 h7 Kc4 b7 a5 b6 c5 b5 f5 Nh3 d5 Qe1 Kb3 Na3 d4 Bg2 a4 Nc2 f3 Nf4 a3 Nd5 Qd1 e4 a2 e5 f4 e6 Ra3 e7 Na6 b8B Bf5 e8N Nf6 b7 Nh5 b6 Be4 Nd6 Rd8 h8R g3+ Kf1 f2 Rh6 Qg4 Rg6 Qf5 Ke2 f1Q+ Kd1 f3 Bd2 f2 Bc7 Qc8 b8Q Nf4 b7 Ne6 Nb6 Qe2+ Kc1 f1R Qa7 Qf3 b8B Qh5 Nb7 Rf7 Be5 Rd5 Bf3 g2 Bbd6 Qch8 Bf8 g1Q Kd1 Qgh2 Qg1 Q5h6 Bg2 Kb2 Ke2 Rg3 Qc1+ Kb3 Bf6 Bf3+ Kd3 Q6h5 Qd1 Kb2 Kc4 Be4 Kb5 Kb3 Qe1 d3 Qc1 Rd4 Ka5 Ra4+ Kb5 Bf5 Nd6 Rh4 Bfc3 Rd4 Ba8 Be4 Nb7 Qg8 Bb2 Qgh8 Rb1 a1Q Bbc3+ Qb2 Ra1 Qb1 Ra5 Qa2 Ba1 Qb2 Ra4 Rf5 Ka5 Rf7 Rc4 Ka2 Rc3 Nb8 Rb3 Na6 Ra3+
R1bKBQ2/1B1pn3/Q1N4q/1br3bB/R1q2B2/pp5r/4N3/2bRNrk1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 a4 b5 Qd3 b4 Qd2 Na6 Qd1 Nc7 b3 Nb5 axb5 Qc7 Bg5 Qc3+ Bd2 Qxb3 Bc1 Qb2 Ke2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 e5 g4 h5 c4 a4 f4 h3 c5 h2 c6 h4 c7 b3 g5+ Kf7 g6+ Kf6 b6 d3 b7 h3 b8N d2 g7 e4 Na3 e3 Be2 Qc2 Bh5 e2 Nc6 e1B Qe2 d1B Qa6 Bh4 Ne2 Ne7+ Kd6 Qc4 g8B Bh6 Nc2 B4g5 Ne1 a3 Bgf7 Bc2 Be8 Bd3 Bd2 Rb8 Rd1 Rb5 Rg1 h1Q Rg4 h2 Be3 Bb7 c8B Rc5 Kc7 Rh7 Kd8 Rf7 Ne5+ Qc6 Rh4 h1R Bc1 Q6e6 Nc6 Rh3 Bd2 Qc1 Rg4 Bb5 Be3 Qec4 Rh4 Kg7 f6+ Kh7 f5 Rf8 f7 Kg7 Bg4 Kf6 Bh5 Qd2 Na7+ Ke5 Bf4+ Ke4 f6 Qe3 Nc6 Qec1 Bb8+ Ke3 Bf4+ Kf2 Rg4 Rh8 f8Q Rf3 Ng3 Kg1 f7 Rf1 Ne2+ Kh1 Qa5 B7a6 Bb7 Qe3 Ba8 Bc8 Bb7 Qee6 Qa6 Qf6 Bg3 Bc1 Re4 Bhg5 Bf4 Qh6 Red4 Qce6 Ra4 Qc4 Qg7 Rh7 f8R Rh8 Rg8 Rh7 Qf8 Rh8 Ned4 Kg1 Ne2+ Kf2 Qf7 Qf6 Kc7 Qfe6 Bg6 Rh2 Bh5 Rh3 Qg7 Qh6 Beg6 Qd5 Re8 Qg8 Qf8 Qc4 Nd3+ Kg2 Rd8 Kh1 Be8 Kg2 Ne1+ Kf2 Ba8 Bb7 Rb8 Bc8 Kd8 Bh4 Bb7 Bg5 Ng3 Kg1 Ra8 Kh2 Ne2+ Kh1 Ned4 Kg1 Ne2+
1RNKB2B/Np2n1Q1/8/1p3Q2/kB1p1Q2/1rRr1qb1/1R2br2/1B2q1rb b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 fxg5 f4 d4 a6 b4 Nc6 b5 axb5 h4 cxd4 h5 Nb4 g6 Nd5 g5 Ne3 h6 Nf5 exf5 Bxh6 Nh3 Bg7 Ng1 Bf8 Kf2 d5 Kf3 Kd7 Kg4 Kc6 c4 e5 a4 e4 c5 e3 g7 e2 a5 e1R g6 h6 a6 f3 a7 f2 Qd2 d3 Nf3 Re7 Ra2 h5+ Kg5 h4 f6 h3 f7 h2 Bb2 Bf5 Nc3 Be6 Qf4 d2 Bd3 f1Q Bb1 d1R Ne5+ Kc7 c6 Kb6 c7 Qd7 c8Q Nh6 Kf6 Qd3 g8Q Bg4 g7 Bf3 Ne4 Be2 Nc6 Nf5 Nd6 Rh3 Qh7 Qe8 g8B Qb3 Qg7 Rdd3 Rc1 h1B Rc3 Re4 Qe6 Ne7 Qef5 Rhg3 Ba1 Ree3 Rb2 Rg1 Nc8+ Ka6 Bh7 Rf3 Ke6 Rf2 Bg6 Qd1 Kd6 Qf1 Kc7 Qh3 Bh5 Qf3 Qgg4 Bg7 f8B Bf6 Qgg3 Bh4 Qg7 Bg3 Bg6 Qf7 Kd8 Qe6 Be8 Qee4 Ne5 Ka5 Nc6+ Ka4 Rcc2 Ng6 Bb4 Rb3 Rc3 Ne7 Ba5 Rb8 a8R Qb4 Na7 Qbe4 Bb4 Qee3 Kc7 Qc1 Nd6 Rd8 Rb8 Qe1 Ndc8 Rd6 Qc4 Re6+ Kd8 Re3 Qcd4 Rd3 Qdf4 Qc1 Rbc2 Rd2 Qgf8 Rfg2 Re3 Qe1 Bh8 d4 Qg7 Rf2 Rec3 Rd3 Rb2
1RK1B1b1/B1R2rn1/Q1B1nQb1/4N2k/4r1B1/1pRN4/r2p2p1/r1Nnr3 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 h3 f5 Bf4 g5 Bd2 f4 Bc1 Qa5 h4 Qf5 gxf5 g4 Ba3 Bh6 Bc1 Bg5 hxg5 Ra4 Qd3 Ra6 Qd1 Ra8 Kf2 Kf7 c4 d5 a4 b5 e4 h5 e5 h4 e6+ Kg7 f6+ Kg6 f7 d3 f8N+ Kh5 a5 h3 e7 h2 e8B+ Kh4 c5 d2 c6 b3 g6 b2 g7 d4 c7 d3 a6 b4 a7 b3 Ne2 Nc6 Ne6 Bb7 c8B Rh6 Nc5 Nd8 Na3 b1B Nc4 Ne7 g8R Nf5 Bg2 Re6 Qf1 Ng7 Ne5 Bd5 Ra4 Re7 Rc4 Nde6 Rc3 Rf7 Ba3 Kh5 Nc1 Bc2 Rg1 h1R Bb2 Rh2 Rh1 Rb8 a8Q Rb4 Qa6 Re4 Ba3 Bc4 Bb4 Bd5 Ba5 Bc4 Bb6 Bb1 Ba7 d1N+ Kg1 g3 Bcd7 d2 Nc5d3 Rh4 Rh3 Bd5 Rc7 f2+ Kh1 Ra4 Rf8 Bc4 Bgc6 g2+ Kh2 f3 Kg3 Ra2 Bc8 Kg5 Bc8d7 Re4 Bc8 Nd4 Bg4 Nde6 Qe1 f1R Qf2 Rg1 Qa5 Nc3 Nb2 Nd4 Bed7 Re2 Rb8 Rf4 Qa6 Bg6 Be8 Ree4 Ne2 Rga1 Nc1 Bg8 Qff1 Rf7 Qf2 Re2 Qf1 Nd1 Qf2 Kf6 Kf4 Re3 Qff1 f2 Rf3 Re1 Rc3 Re2 Nbd3 Re3 Qe2 f1R+ Qf3 Rfe1 Qf2 Ngf5 Qh4+ Kg7 Qf6+ Kh6 Bb7 R3e2 Bbc6 Ng7 Nd7 Ne3 Ke5 Nd1+ Kd6 Nde6 N7e5 Re4 Qf2 Rff4 Kd7 Rf7+ Kc8 Kg5 Qf6+ Kh6 Bf5 Kh5 Bg4+
RkBQ2K1/n1NRNN2/2R5/2pr4/1r1n1n2/2npb1Qp/3nN2B/1b4bB b - - 0 1 illegal: No possible last move, all moves rejected
bn6/2b1QrR1/2Q2B1B/2pb2bB/bbp2Q1N/1R3p1R/1K3k2/2n1qQN1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 h4 f5 h5 a5 h6 f4 Rh3 Qh4+ Rg3 Qh2 Rh3 Ra6 Rh4 Rf6 Rh3 Rf5 gxf5 Nxh6 Rh5 Ng8 Rh3 Qg2 Rh1 Qh2 e4 Kd7 b4 Kd6 d4 g5 e5+ Kd5 b6 Ke4 b5 h5 e6 a4 e7 f2+ Kd2 h4 Kc3 h3 e8Q+ Ne7 f6 g4 d5 g3 b7 g2 d6 a3 f7 a2 b6 Qg3+ Be3 h2 d7 Rh7 d8Q Bd7 Qe1 Ba4 Qed7 Nec6 Kb2 Bb4 f8Q Na5 Be2 f1B Bh5 c5 Qed2 Qe1 Qc6+ Ke5 Qh4 Nb3 Qd3 Rf7 Nd2 Nc1 Qf2 Be2 Qfd8 Bf3 Qg3 Nd7 b8R Bd5 Rb7 Nb8 Rb1 Rf5 Rg7 Rf7 Qe2 Kf5 Ndf3 Ke4 Qef2 Kd3 b7 Ke4 Qe7+ Kd3 Ne2 g1B Qf1 Bf2 Nh4 Bg1 Bd4+ Be3 Bf6 Kd2 Qg6 Kd1 Qd3+ Bed2 Rhg1 h1B R1g3 Bhf3 Rh3 Bfe4 Qe3 f3 Qf4 Be3 Ng1 Bed2 Qfd6 Bg5 Qdc7 Kd2 Qc7d6 Ke3 Qd3+ Kf2 Qf4 Ba3+ Ka1 Bb4 Rb3 Qd1 Kb2 a1B+ Kb1 Qe1 Kc2 Na6 b8B Be5 Kb1 Bc7 Kb2 Bb6 Qf5 Bd8 Bf4 Nb8 Bd2 Be3 Qf4 Bc7 Bdc3 Bd2 Bg5 Be3 Bcf6 Bed2 Bh6 Be3 Qce8 Ba8 Qc6 Bd5 Qff5 Bg5 Qg4 Na2 Qf4 Nc1 Qf1+
3N4/n1Q4n/1KRQn3/1p1NpnrN/4n3/rbbpB3/R2R1R2/kB3rB1 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 a5 b4 axb4 d4 cxd4 h5 g5 hxg6 f4 g5 Qa5 f3 Qf5 exf5 Ra3 Bh3 Rxf3 Bg2 Ra3 Bf1 Ra8 Kd2 d5 Kd3 Kd7 a4 Kd6 c4 Ke5 f6 b5 c5 h5 f7 f3 g7 f2 c6 h4 c7 b3 a5 b2 a6 h3 a7 h2 g6 Rh5 Ne2 Rg5 Ng3 Nf6 g8N Nh7 g7 Nc6 Ra6 Be6 Bh3 f1R Nc3 b1N c8Q Nd2 Nh6 Nf3 g8R Bg7 f8B Bf7 Rg1 h1N Nh5 Ng3 Bf5 Ne4 Rg2 e6 Be3 Bh8 Kc2 d3+ Kb3 d2 Rf2 d4 Bc5 Bg7 Rd8 Bh8 Qc2 d1N Qd7 Bf6 Nd5 Bh8 Bd2 Ne3 Bg6 Nf5 Be3 Nfd2+ Ka3 Nb3 Bb6 Nbc5 Qe7 Rb8 a8R Na7 Kb4 Rb7 Rac8 Rb8 Rc6 Ra8 Ra2 Bg8 Ka5 Bf7 Rf8 d3 Rd2 Bg8 Bf7 Bf6 Bf4+ Kd4 Qd6 e5 Be6 Bd8 Nf7 Be7 Nd8 Bf7 Qb1 Kc4 Qc1+ Kb3 Be3 Bg8 Bc8 Ne6 Bg1 Bf7 Bbe3 Bg8 Kb6 Bf7 Qc7 Bb4 Qc5 Bc3 Q5d6 Bg6 Nhf4 Bh5 Bd7 Bd1 Nh5 Bc2 Be8 Bd1 Bf7 Bc2 Ra4 Kb2 Ra2+ Kb1 Bg8 Bb3 Rf6 Nfd4 Rff2 Nf5 Rc4 Nc6 Bf7 Ra3 Rc5 Na7 Rc6 Bb2 Bg8 Bc3 Ndf6 Bd5 Rac2 Neg7 Be6 Ba2 Bb3 Ka1 Nd5 Ne6 Rb2 Rg7 Bc2 Bb3 Bb1 Rg5 Ra2+
2RQ4/1knnqb1p/2bNQ3/1prp2B1/nb1R1n2/3R4/3NB3/1bQ1QKB1 b - - 0 1 legal: proof: f4 g5 g4 b5 h4 a5 d4 c6 h5 f5 b4 axb4 e4 c5 exf5 gxf4 g5 cxd4 Kd2 Ra6 Ke1 Rg6 hxg6 Qb6 Qg4 Qa5 Qd1 Qd8 c4 e5 a4 d5 g7 Kd7 g6 Kc7 a5 e4 c5 d3 a6 b3 f6 b2 f7 e3 c6 f3 a7 e2 a8Q Be7 f8B Nd7 Rh4 Bb7 Na3 b1B Rd4 Ngf6 g8Q Ne8 g7 d2+ Kf2 e1N Nc4 Bg6 Qa3 Bb4 Be2 Nd3+ Kf1 f2 Bc5 Nf4 Nd6 Bf7 Nf3 Qe7 Qe1 d1N Nd2 Nc3 Qf8 Kb8 g8Q Na4 c7+ Ka8 Qg4 Bc6 Qe6 Rg8 Ba7 Rg3 Qb2 Rc3 Ra3 Rc2 Rad3 Rc5 N6e4 Kb7 c8R Nc7 Qd8 Nh5 Kg2 f1B+ Kf2 Bg2 Nd6+ Ka6 Kg1 Be4 Kf1 Beg6 N2c4 Bf5 Bg5 Nf4 Qbc1 B5g6 Rd1 Bf5 Nd2 Bb1 Rd3 Rc3 Bg1 Rc5 Rd4 Kb6 Nb3 Ka7 R1d3 Ka6 Nd2 Ka7 Nf5 Kb7 Nd6+
b3K1B1/kR1NpQ2/b4q2/1p1N3R/4QBRp/2r4q/1q1QB3/q1bB1rq1 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 b4 fxe4 h4 a5 d4 axb4 f5 cxd4 Kd2 Nh6 Ke2 Na6 Ke1 Nc7 f6 Nf5 gxf5 g4 Ke2 Ne6 Ke1 Ng5 hxg5 Qc7 Nh3 Qb6 Ng1 Qd8 Ke2 d5 c4 Kd7 a4 Kc7 c5 Kb8 a5 b5 f7 h5 f6 e3 Kd3 b3 c6 g3 a6 b2 g6 g2 a7+ Kc7 g7 Kb6 g8B e2 c7 e1Q Nc3 Qe6 Be2 Ba6 c8B Qh3+ Nf3 g1Q Bf4 Qd6 Qd2 Bh6 Bg4 Rc8 a8Q h4 f8Q Rc7 f7 Qf6 Rh2 Bg5 Rg2 Rh7 Qc6+ Ka7 Qe6 Rh8 Qe4 Rc4 Ra2 b1Q+ Rc2 Qb2 Qe8 Qf5 f8R Qf6 Qf7 Bh6 Rb8 Rc6 Bh7 Rf8 Bg8 Rcc8 Rg3 Bg5 Ne5 Rc7 Bd1 Rc6 Ke2 d3+ Kf3 d4 Nd5 Rc3 Nd7 Bh6 Qeh7 Bg5 Ke4 Bh6 Bge2 Bg5 Qe1 d2 Rg4 d3 Qh6 Rb3 Rc5 Rc3 Ba4 d1B Rb7+ Ka8 Qhg6 d2 Qgh7 Bb3 Qf5 d1Q Qd2 Ba2 Q5g6 Qda1 Bad1 Qfd4+ Kf5 Bh6 Rb6 Ka7 Ke6 Bb1 Rb8 Be4 Qgh7 Bh1 Qe4 Qh8 Ne5 Qf6+ Kd7 Rf3 Rb6 Rc8 Rb8 Rf1 Rb6 Rc6 Ke8 Bg2 Nd7 Bf3 Nc7 Bg2 Rh5 Rc3 Qeg6 Bd5 Qe4 Ba8 Nd5 Rd3 Bh2 Be3 Bf4 Rc3 Qdd3 Bc1 Qd2 Qba2 Rb8 Q2b2 Rb7+
1r2R3/R1N2rp1/Bn1b1k2/2B3R1/BpBQQ3/1Kp1Q3/n1p4n/b1N3qb b - - 0 1 legal: proof: c4 a5 e4 h5 g4 hxg4 b4 axb4 d4 e5 dxe5 f5 exf5 d5 Qd3 dxc4 Qc2 Kd7 Qd1+ Ke8 h4 Ke7 f4 b5 a4 c5 a5 g3 f6+ Kf7 f5 b3 h5 c3 e6+ Ke8 e7 Kf7 a6 g2 a7 b4 h6 c4 h7 c2 Be3 Qb6 Kd2 Nh6 Rh5 Ba6 Na3 Nd7 Rg5 Qc6 Ne2 g1B Nb5 Bh2 Nc7 Rc8 a8B Bg3 Bb7 Qb6 Bc5 Bd6 Nc1 Bb5 Ra7 Rb8 Ba6 Be5 Qf3 Ng4 Qe4 Rg8 h8Q Ba1 Qh3 Nh2 Qhe3 Bc6 Q4d4 Rh8 Bd3 Bh1 e8B+ Kg8 Qde4 Bd6 f7+ Kh7 f8R b2 f6+ Kh6 f7 b1N+ Ke2 Nc3+ Kd2 Na2 Bf1 c3+ Kd3 Rc8 Kc4 Rb8 Kb3 Rg8 Bfc4 Rb7 Rf5+ Kg6 Rg5+ Kf6 Q3d4+ Ne5 Bd7 Rb8 Re8 Rf8 Rb7 Qa7 Ba4 Qb6 Qde3 Nd7 Ra7 Qc6 Q4d3 Qg2 Qde4 Nb6 Ree5 Rfd8 Re8 Rd7 f8Q+ Rf7 Qh8 Qf1 Qhh4 Qg1 Qhg4 Qg3 Qd1 Qg1 Qdd4+
N3RB2/n1ppRQ2/3B4/qNK4p/1r1r1R2/1kbBp2B/1b1Q3r/1N4nr b - - 0 1 legal: proof: e4 b5 h4 f5 b4 fxe4 c4 g5 cxb5 gxh4 a4 Bh6 b6 Ba6 b5 Bf4 a5 Bc8 d3 exd3 a6 Bb7 axb7 Bh6 Nd2 Bg7 Nb1 Bf8 Kd2 Kf7 Kc3 Ke6 Kc4 h5 g4 a5 f4 a4 f5+ Kd6 g5 e5 g6 e4 g7 a3 f6 a2 f7 h3 Nf3 h2 Nfd2 Qf6 Bh3 Nc6 b8Q Qe7 b7 Nf6 g8B Nd5 b6 Ke5 Re1 h1R Bh7 Nf4 Ba3 Ne2 Qe8 Ng1 b8N Na7 b7 Bg7 f8B Rh2 Qf7 Qg5 Kb4 Kd4 Nc4 d2 Nb6 Qf5 Qc1 d1R Nc6+ Kd3 b8R Bb2 Qe3+ Kc2 Re8 Qa5+ Kc4 Rg8 Bad6 Rb8 Na8 Rg4 Qef4 Bc3 Nd4+ Kb2 Qe3 Rh4 Nb5 Rd4+ Kc5 Rb6 Qf1 Kb3 Qd2 Rb8 Re7 e3 Bd3 Rb7 Qf5 Rh1 Rf1 Bb2 Rf4 Bc3 Bg2 R4h2 Bh3 Bb2 Na3 Rb6 Rb1 a1B Qf7+ Ka4 Rbf1 Bc3 Rfe4 Bab2 Nb1 Rb8 R4e6 Kb3 Rf4 Qa2 N5a3 Rbb4 Nb5 Qa6 Re8 Qa5 R6e7+
1N2r2b/pKB3R1/1B1QNR2/3pr2n/3Q3r/2k1N3/bpN2p1q/1n1Q2rR b - - 0 1 legal: proof: b4 c5 d4 cxd4 g4 e5 f4 h5 gxh5 b5 Bh3 Rh6 Be6 Rh8 a4 bxa4 Bb3 axb3 fxe5 Qe7 Kf2 Qf6+ Ke1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 d5+ Kb5 g5 e4 f5 c4 f4 h4 g4 h6 b2 c5 g3 h7 d3 h5 g2 c6 d2 h6 f3 c7 f2 Ra6+ Bd6 Na3 Bb7 c8Q+ Nd7 Qc5 Qg5 Nc4 Qg3 Ne3 Rb8 Nf3 g1R Nd4+ Ke7 e6 Kf6 e7 Ke5 e8N Rg2 Ndc2 Rd8 Ng7 Ndf6 Ne6 Bc8 Kc6 Ng4 b5 N8f6 b6 Rg1 b7 Rde8 b8N Nh5 Qb6 Bd7+ Kb7 Ba4 Qb4 Bf8 Rb6 Bb3 Qd6+ Kf6 Rc6 Ba2 Rc7 Nh2 Rg7 Rg8 h8Q Nf3 h7 Qh2 Ng2 Re1 e5+ Kf5 Nge3+ Ke4 Rg6 Kd3 Rf6 Re2 Qg7 Re1 h8B Kc3 Qg4 Bh6 Qf4 Rg4 Qd4+ Kb3 Bg7 Rh4 Bf8 Re2 Be7 Bf8 Bd8 Bg7 Bb6 Bh8 Nf8 Qg1 e6 Qh2 e7 Re1 Ne6 Rg1 Qe2 d1R Qf1 Rd3 Qd1 Nd2 Bc7 Nb1 Bb6 Rc8 e8R Rd8 Ref8 Re8 R8f7 Rd2 Bc7 Re2 Bd2 Ree1 Bda5 Re2 Bab6 Ree1 Qa4+ Kc3 Rg7 Re2 Nc4 Ree4 N4e3 Re5 Qad4+
n2QB3/R1bB2kq/1Q4bp/rp6/q2QpNB1/3n1NKN/3p1R2/N3q1n1 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 axb4 e5 f6 exf6 cxd4 Nf3 g6 Ng1 g5 f4 b5 h4 Bh6 g4 Ra7 f5 Kf8 Bf4 gxf4 g5 Ke8 g6 Bf8 Kd2 Ra3 Ke2 Rg3 Ke1 Rg5 hxg5 Qc7 Rh3 Qb6 Rh1 Qd8 Kf2 d5 a4 e5 c4 d3 c5 d4 g7 Kf7 g6+ Ke8 f7+ Ke7 f6+ Ke6 a5 b3 a6 b2 c6 h6 c7 d2 a7 e4 a8B f3 Ra7 d3 Nh3 Qd7 Be2 Na6 Rh2 Nc5 Bc6 Ne7 g8Q Nd5 g7 Bd6 Na3 b1Q Qd8 Nb6 g8Q Na8 f8N+ Ke5 Qg4 Qh7 f7 Bf5 c8B Bc7 Kg3 f2 Nc2 Bg6 Na1 f1Q Bf3 Qb4 Rf2 Qa4 Be8 Qe1 Ne6 Rg8 f8N Rh8 Qd5+ Kf6+ Nef4 Kg7 Nd7 Rf8 Qc4 Rf6 Qh5 Ra6 Ne5 Ra5 Qg4 Nb7 Qge6 Nc5 Qe2 d1N Qd4 d2 Qed3 Nc3 Bcd7 Nd1 Bg4 Nc3 Qb6 Ne2+ Kg2 Ng1 Kg3 Bb8 Nf3+ Be5 Qd5 Bc7 Q3c4 Nd3 Qcd4+ Kf8 Qg5 Kg8 Qd8 Kf8 Qdc5+ Kg7 Qd4+
2NR2nn/2BN4/Kp2R2r/1Qp1bN1R/B1rk4/2R3p1/1q2QQpr/6nq b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 d4 Ke7 Kd2 Kd6 Kd3 f5 Kc4 h5 Kb5 c5 e4 b3 a4 h4 e5+ Ke7 a5 h3 a6 b2 a7 f4 d6+ Ke6 g5 Kd5 e6 b6 e7 f3 e8R f2 d7 h2 g6 Nh6 g7 Bd6 g8N Nf5 Ra3 Qc7 d8Q Ne7 Qe2 Na6 Bf4 Rh6 Nf3 Nb4 Qd7 Nc8 Ne5 Rh5 Re6 Ne7 Rc3 Rh6 Nd2 b1R Ndc4 Nbc6+ Ka6 Nd8 Qb5 Nf7 Nd7 Be5 Ne3+ Ke4 d5 Kd4 d6 Nh8 Rf6 Rc8 a8Q Rb4 Re6 Rc4 Qaf3 Qd8 Nb8 Qc7 d7 Qc6 d8R+ Qd5 Nf6 Ng8 Nbd7 Qe4 Nfd5 Qb1 Ne7 Qb2 Qe1 Rc6 Nc8 Rc7 Bd3 f1N Qfe2 Nd2 Bc2 Nf3 Ba4 Rc6 Q1f2 Rh7 Re1 h1Q Rh6 Ng1 Rh5 Bg7 Bc7 Be5 Rg5 Rh3 Rh5 Rh6 Rd1+ Ke4 Rd6 Rh2 Re6 Kd4 Nf5+
rqR1Nn2/1Rb1rRQn/1n2p3/1B2Q3/p4p2/5n1n/B1KR1p1N/1Q2N2k b - - 0 1 legal: proof: d4 b5 g4 d5 f4 c5 e4 g5 a4 gxf4 g5 h6 Be3 Bd7 Bf2 Bc6 axb5 cxd4 g6 d3 Bh4 d4 Bg5 Bd5 exd5 hxg5 Kd2 Kd7 c4 Kd6 h4 Ke5 b4 Ke4 d6 f5 h5 a5 g7 f3 c5 f4 b6 a4 c6 f2 b7 g4 h6 g3 b5 g2 d7 Qb6 d8R Nd7 b8N Qa7 c7 Ngf6 g8B Rh7 Ba2 e6 c8R Bd6 b6 Nf8 b7 Re7 Nd7 Bc7 Nf3 g1N h7 Qb6 Kc1 d2+ Kc2 Qb4 Rh4 Nh3 h8Q Ke3 Rg4 N6h7 Nh2 Ke4 Qc1 d1N Rg7 Nb2 Rf7 Nc4 Qg7 Ne5 Nd2+ Ke3 Nf6 d3+ Kd1 Qb5 Ndf3+ d2 Kc2 Qb6 Qb2 d1N b8Q Nc3 Rb1 Nd5 Ne8 Qa7 Q8b5 Qb8 Ne1 Ke4 Qa1 Ke3 Qc5+ Ke4 Rb7 Nb6 Qb5 Ke3 Qab1 Ke4 Bg2+ Ke3 Rd3+ Ke2 Bc6 Nf3 Ng4 Kf1 Qbe5 Kg1 Nh2+ Kh1 Rd2 Nd5 Bd7 Nb6 Bb5
b2R1KR1/Rb3p2/Qn1B3B/2p1r3/k1rp2pr/2b1RQ2/N3BN1r/1qN5 b - - 0 1 illegal: No possible last move
BkrQ4/3q2BR/3q2Q1/1N3pR1/pRp2Br1/1b1b2p1/b3RN2/K1N1b1n1 b - - 0 1 legal: proof: c4 d5 g4 dxc4 h4 e5 a4 Qxh4 g5 b5 axb5 Qh2 f4 Nd7 Bg2 f5 Bf1 Ndf6 gxf6 exf4 e4 Kd8 b4 a5 d4 h5 e5 c5 e6 Kc7 e7 g5 e8N+ Kb8 f7 f3 b6 g4 b5 c3 b7 h4 d5 a4 d6 g3 d7 c2 d8Q h3 Bg2 f2+ Kd2 f1B Kc3 Ka7 Kb2 Kb8 Nd6 Bd3 Qh5 Nh6 Ne4 Ng4 Ra2 Rg8 Bf4+ Ne5 Qg6 c1Q+ Ka1 Qd1 Re2 Bd6 f8B Nf3 Bg7 Qd2 Qh4 Be6 Na3 Bb3 Nf2 c4 Qe7 Bb1 Qef6 B1a2 Qd4 Bc7 Qd7 Qd6 Qd8+ Ka7 b8R Ba5 Rc8 Be1 b6+ Kb7 Rc6 Rc8 Nb5 Kb8 Rc7 Qd7 b7 Qd6 Ree7 Qd7 Ne2 Ng1 Nc1 Qd6 Bf3 Qg2 Re2 h2 Bc6 Qgd5 Rce7 Re8 Rf7 Re4 Rf8 Qe6 Rh8 Rd4 Rh5 Qd7 Rg5 Nf3 Rg1 h1B Rf1 Bg2 Rh1 Ng1 Rh7 Bf1 Nc3 Ka7 b8R Re4 Rb5 Rd4 Bb7 Kb8 Rb4 Re4 Nb5 Rd4 Rb2 Bd3 Re2 Re4 Ba8 Rd4 Bfe5 Rg4 Bf4
B1Q5/r2QB3/2NRRR2/1q2p1nK/b2q1p1b/N1pkp1r1/BQ3rr1/6R1 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 b5 a4 g5 hxg5 f5 g6 f4 g5 Nc6 c3 Nd4 c4 bxc4 f3 Nb5 axb5 Bg4 Be2 Bxf3 Bd3 Bg4 Bf1 Bc8 Kf2 Kd7 b4 Ke6 d4 Kd5 g7 a5 b6 c5 b5 e5 g6 h5 b7 c3 b8Q c4 b6 a4 b7 e3+ Kf3 c2 Bd2 c1R Ne2 a3 Rg1 h4 Bg2 h3 Bb4 a2 Na3 c3 Be7 Nf6 g8R h2 g7 Bd7 Qc8 h1R b8Q Ne4 Qb2 Ba4 Kg4 R8h3 Rh8 Rb1 Rh6 R1h2 Re6 Ra7 g8B Qd6 Bf3 Rf2 Bh1 Rg3+ Kh5 Bh6 Qd3 Re1 Qdb5+ Qc5 Qbd7+ Qd6 Rb1 a1Q Rd1 Rgg2 Bf7 Ng5 Rd3 Ke4 d5 Qc5 d6 Qb4 Nd4 Qb1 Nc6 Qd4 Rf6 Ref1 Ba2 Rf3 Rd1 Rfg3 Re6 Rf2 Rd2 Qb4 Rd5 Bf8 Ra5 Qc5 Ra6 Qd4 Nb4 Qf1 Rh6 Bg7 Qb5 Nh3 d7 Bf6 d8R Bh4 Rae6 Ng5 Rdd6 Qfc4 Qbd7 Qb5 Nc6 Kd3 Nb8 Rh2 Ba8 Rhg2 Nc6 Qb7 Rhg6 Qb5 Rgf6
2rbrqQ1/B1q2BNK/p1qp1b2/2R1BQ2/2Q4N/1q2n2R/B1Rk2pp/8 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 h3 g5 Qd3 f4 Qd1 Ba6 Ra2 Bd3 Ra1 Bf5 gxf5 Nc6 h4 g4 Be3 Ne5 Bd2 Nf7 Bc1 Ng5 hxg5 Bg7 Ra2 Bh6 Ra1 Bf8 Kf2 Ke7 c4 Kd6 b4 Ke5 e4 h5 f6 h4 c5 h3 b5 a3 f7 d3 b6 Kd4 e5 d2 g6 a6 c6 d6 c7 a2 c8R Rb8 b7 Rh5 g7 Qe7 e6 Nh6 g8Q Ra8 b8B Re5 Qc2 d1Q Nc3 Rd5 Bb2 Qb1 Ba7+ Rc5 Bc4 Nf5 Rh2 Qd1 Rc1 a1B Ba2 Qd8 Qb3 Be7 f8Q Kd3 Nd5+ Rc3 Qa4 Qb3 Nf6 Rc4 Nh5 g3+ Kf1 f2 Ng7 Bh4 e7 Qd7 Rc7 Re8 Nf3 Bg5 Nh4 Rc5 Rg2 h2 Re1 Rc4 Re3+ Kc2 Ke2 Qd8 Rd7 Rc8 Kf3 Qa5 Kg4 f3 Rb7 Qc7 Kh5 Kd1 Kg6 f1Q Qb5 f2 Kh7 Qh1 Qbc4 f1Q Rc2 Qhc6 Rb5 g2 Rh3 Ne3 Rc5 Ke1 Qff7 Kd1 Qfe6 Qf8 Qf5 Ke1 Rc1+ Kd2 Bf6 Red8 e8B Bb2 Bf7 Re8 Bd4 Bd8 Bf6 Bc3 Bd4 Ba5 Ba1 Bc3 Bb2 Bcf6 Be5 Bde7 Rc3 Bd8 Rc2+
k3q1Nn/1pp1Qr2/2n2q1b/QQ2R2B/2KQN2n/p7/1N2pRn1/1B4Bn b - - 0 1 illegal: No proof kernel
bR1nQK1n/3N3q/3n4/pQ1pr2N/Q3B2B/NB5B/p3n1p1/q2R2qk b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 h3 g5 Ra2 a5 Ra3 f4 Ra1 Be7 h4 Ra6 Qd3 Rf6 Qd1 Rf5 gxf5 g4 Nc3 Nh6 Nb1 Bg5 hxg5 Ng8 Kf2 Ke7 b4 Kd6 e4 Ke5 c4 h5 f6 d3 c5 h4 b5 d2 c6 a3 g6 a2 b6 h3 f7 h2 f8N Qc7 g7 Nh6 g8B Nf7 b7 Rh5 Bh3 Nh8 Bb3 d5 Ne2 Qh7 c7 Nc6 b8Q Bb7 Na3 Nd8 Ng3 Ba8 c8B+ Kd4 Re1 h1Q Rb1 Re5 Nh5 Kd3 Ba6+ Kd4 Qc2 d1Q Baf1 Qh2+ Bfg2 Qh1 Bd2 Qc1 Rb2 Qa1 Qb5 Qh2 Nd7 g3+ Kf1 f2 Ke2 f1N Kf3 Qg1 Kg4 f3 Rd1 f2 Bg5+ Nd2 Bh4 Ke3 Rbb1 Re8 Kg5 f1N e5 Nc4 Kf6 Nd6 Be4 g2 Qcc4 Re7 Qca4 Ng3 Rb2 Ne2 e6 Rg7 e7 Rg5 e8Q Re5 Bg5+ Kf2 Rbb1 Qe1 Bh4+ Kg1 Rb2 Kh1 Rbb1 Qf5+ Kg7 Qh7+ Kf8 Qg1 Rbc1 Nd8f7 Rc8 Nd8 Rb8
B3bQbQ/r2N4/p1N2R2/q7/pQ2b3/p1N2kB1/n1p1pN2/2RRb1bK b - - 0 1 illegal: Other
r3R3/2QbRQ1K/1bqBq1B1/n2r2qb/Q1nR2N1/3rQ3/3n3k/nNB2n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 b4 h5 c4 a5 e4 d5 g4 h3 c5 a4 b6 a3 b5 f3 g5 a2 b7 h2 c6 f4 b6 h4 c7 f2 g6 f3 g7 h3 Ba3 Kf4 e5 Kg3 e6 Nf6 g8R+ Ng4 e7 Nc6 b8B Bd7 e8Q Qg5 c8Q+ Nge5+ Kc2 d3+ Kc3 d4+ Kb3 d2 Kc2 Bc5 b7 Bb6 Qf7 Na5 Bc1 Rh5 Bd3 f1N Qce8 f2 Bg6 d3+ Kc3 Kg2 Nf3 Nec4 Qa4 d1B Qe3 Nfd2 Re1 f1N Re8 h1Q Ne5 Kh2 Bd6 Qd5 b8Q Qe6 Qc7 Bf3 Na3 Bg4 Rb1 a1N Rb4 Rh7 Nb1 Bh5 Qec5 Rg7 Kd4 Rg8 Re7 Rgd8 Re8 Kg2 Re3 h2 Re4 h1Q Re1 Ndb3+ Ke4 d2 Qe3 d1R Re7 Rd5 Re8 Na3 Rd4 N3c4 Re7 Qg1 Re8 Kh2 Re2+ Q5g2+ Kf4 Nbd2 Re1 Ng3 Kg5 Ngf1+ Kh6 Q1h1 Kh7 Qg5 Rf4 Rd3 Rd4 Qc6 Be7 Rc3 Nd3+ Qee5 Qef3 Bdg4 Re3 Rd5 Bd6 Bd7 Re1 Qeg3 R1e7 Q3e5 Qe3 Rb3 Nf4 Qe6 Nd3+ Qf4 Ne5 Rd3 Kg8 Qfg4 Kh7 Qg5 Ng4+
6K1/B1rb1Q1n/QN6/R2Qn2q/2BqR3/2bb1QNb/4Rbk1/1rNnr1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 d5 c4 a5 b4 f5 b6 d3 e3 d4 b5 h3 b7 a4 g5 a3 c5 d2 g6 f3 g7 f2 b6 h2 c6 f4 c7 d3 Qa4+ Qd4 Nf3 d1R Bb2 d2 Ne5 a2 Nd3 Kf3 e4 Nc6 b8Q Nf6+ Kh6 Ne5 b7 Re1 Qa6 d1N Nc3 Bc5 g8Q Ra7 Kg7 h5 Nc1 h4 Bc4 f1B Qf7 h3 Qa8 Bd7 b8Q Kg2 c8N f3 Nb6 f2 N3e2 Nh7 Qd8 Rc7 Ng3 Bd3 Qad5 f1B Qdf6 Ra8 Qf4 Raa7 Kg8 Rab7 Bc3 Nf3 Bd2 Ne5 Be3 Rb8+ Nc8 Rb1 Nb6 Bfe2 Rf1 h1Q Q4f6 h2 Rf4 Qg1 Qfc6 Nf3 e5 h1Q e6 Bf1 e7 Qh5 Re4 Ne5 e8R Be7 Nh1 Bh4 Qcf6 Bf2 Ng3 Kh2 Qf3 Bfh3 Ra8 Rb4 Rb1 a1B Rb2 Rb3 Re2 Rb1 Qab7 Bb2 Ra5 Bc3 Qa6 Qc5 Na8 Qb4 Ba7 Qd6 Q3f4 Kg2 Nb6 Qc5 Qg4 Qd4 Qgf3+
n2kN1Rr/b2bqBR1/1nq3Rb/Q4N1r/1r2QB1Q/3n4/3N1bK1/q5bN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 a5 c4 d5 e4 a4 h5 f3 h6 g3+ Ke1 a3 b6 g2 Kf2 g4 e5 d3 c5 f4 b5 a2 b7 d2 e6 d4 e7 d3 c6 Na6 b8R Nc7 h7 Nf6 b6 Ra4 b7 Bh6 Qc2 d1N+ Ke1 g3 Be2 f2+ Kd2 f1Q Ra8 Nd7 b8Q Rb4 Qb6 Nb2 Nh3 g1B Nf2 g2 Qa5 Nb6 Bd1 Qd6 Bh5+ Qg6 Ra7 Nca8 c7 Bd7 c8N Qf7 Qc4 f3+ Qf4 Qd1+ Ke3 Qc2 Nd2 Qc6 Rb1 a1B Rh3 N2a4 Rg3 Nc5 Rg6 Be5 Rb3 Bb8 Rc7 Ba7 Rb7 Bh2 Nh1 f2 Rc3 g1B Rg8+ Bf8 Qe4 Bg3 Rg6 Qfe6 Kf3 f1R+ Kg2 Rf5 Rc2 B3f2 Rc3 Rg8 h8Q Bh6 Qf6 Rh8 Qh4 Kf7 e8N Qe7 Ncd6+ Kf8 Bd1 Rh5 Nf5 Kf7 Bb3+ Kf8 Nc4 d2 Rcg3 d1Q Bf4 Nd3 Nd2 Qb1 Bf7 Qa1 Ne3 Qee5 R3g5 Ke7 Nf5+ Kd8 Rc7 Qe7 Rg8 Qcc5 Rc6 Qc4 Rcg6 Qc2 R6g7 Qc6 R5g6
1N3B2/KbQRN3/2r1r2B/R2n2n1/4nR2/4N1q1/1QBqB1kr/q1b1nbn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 Kb5 f5 c4 d5 e3 f3 g5 f2 b7 d3 g6 h3 g7 d4 c5 h4 c6 f4 c7 d2 Kb6 d3 b5 a4 Na3 h2 Bg2+ f3 Bb2 f1B Nh3 Nf6 g8R Rh6 Bd4 Nc6 b8Q Qd6 Qe1 d1N Rg3 d2 Nc4 a3 Na5 a2 Rg7 Bb7 c8N Qg3 Rd7 Ne5 Qf2 Ba3 Nf4 h3 Bc5 Bc1 Nd5 Nh7+ Nc6 Re6 Qc7 Nd3 Nce7 Rc8 Ka7 Ne1 b6 Ng5 Nb8 Nc3 Bd6 d1N Qb2 Nf2 Rg1 h1N Bb4 Be2 Bf1 h2 Bc5 Bb5 Be2 Nfh3 Rf1 N1f2 Bb4 h1R Bd6 Ba8 b7 Rh2 Ba3 Ng1 Bb4 Nfh3 Bd6 f2 Bf4 Nf7 Bh6 Nd6 Bf8 Ng5 Bh6 Ke5 e4 Ba6 Ne3 Kf4 e5 Nde4 Bf8 Nd5 Bh6 Rd6 e6 Bb5 Bd3 Kf3 Bc2 Rb6 Ng6 Rc6 e7 Re6 e8B Be2 Ne7 Bb5 N3f5 Kg2 Bh5 Bc4 Be2 Bd3 Qcb6 Rcc6 Qc7 Bc4 Na6 Bd3 b8B Bb7 Ne3+ Kh1 Rb1 a1Q Bf8 Qa5 Ra1 Qd2 Ra5 Bb5 Qd8 Bc4 Bf4 Bd3 Nb8 Bc4 N3f5 Kg2 Qc7 Nd3 Bg4 Nf7 Qb1 Ba3 Rc1 f1Q B4h6 Nfg5 Re1 Bb5 Re3 Qfd1 Rf3 Ne1 Rf4 Bf1 Be2 Bb2 Qa2 Qa1 Qb3 Bc1 Qb5 Qg4 Qb2 Qg3 Ne3+
qQnNq3/RbKRbb1r/3n3r/2Q2N1n/1B5k/1nR4B/r1N4n/BN4q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 h5 g4 a5 e4 f5 c4 a4 b4 h3 b6 a3 b7 a2 c5 h4 e5 d3 c6 d2 e6 h2 c7 h3 b5 f3 b6 f2 e7 f4 Kd6 f3 Bc4 f1B Nc3 f2 Qb3 Nc6 b8R Rh7 b7 Na7 Nb1 Nf6 Ne2 Nh5 Bb2 d1Q+ Nd4 Kh4 g5 Qe8 Be6 Bc4 g6 Qg1 g7 f1N g8N Bd5 Bf5 Bf7 Nc2 Rh6+ Be6 Rh7 Qd5 Rh6 Qc5 Rh7 Ke5 d5 Kd6 d4 Nh6 d3 Bg4 d2 Nf5+ Kg5 Bc3 d1N Ba5 Nb2 Bb4 Bce6 c8N Bd5 Kc7 Nc4 Ncd6 Nc8 Nh4 Rh6 Nhf5 Ra5 Ra8 Bg2 b8B Bb7 Ra7 Ra3 Nfd4+ Kh4 Nc6 Ra5 Nd8 Rh7 Ne4 N4d6 Ng3 Ra6 Nc3 Ra5 Rd1 a1N Nb1 Ra2 Rd3 Nb3 Rc3 Qa4 e8Q Be7 Qg8 Qe8 Bf5 Qd4 Rg1 h1Q Qh8 h2 Bh3 Qe3 Rg2 Qe4 Rd2 Qg1 Qhe5 h1R Nf5+ Kg5 Rd1 Nh2 Qh8 Ba6 Rd4 Qa8 Rdd3 Bb7 Rd1 Nc4 Rd7 N4d6 Qhe5 Ne4 Bg2 Bg6 Rh3 Nhf6 Re3 Nhg4 Qb6 Bc6 Qec5 R1h6 Bh3 Nh5 Qb7 Bd5 Rf3 Bgf7 Rg3 Bde6 Kc6 Bc4+ Bd6 Bcd5+ Kc7 Bc6 Re3 Nh2 Be5 Ned6 Ba1 Bh1 Qb8 Bb7 Bf1 Kg4 Rc3 Kg5 Bg2 Kg4 Bh3+ Kg5 Nfd4+ Kh4 Nf5+
bn1bQ3/1k4Nr/2rr1bbQ/4BN1R/5n1b/q2R2bb/3KQRB1/Q5Bn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 Kd7 e5 Kc7 c5 f5 c6 d3 h5 d2+ Ke2 d4 h6 d3+ Kf2 f3 Ke3 f2 e6 g3 e7 g4 e8Q a4 h7 g2 Nc3 f4+ Ke4 g3 Qb3 d1R Qc2 d2 Qb2 f3 Ke3 a3 Qg6 a2 Rh5 Bd6 Qf6 Bb7 Qe5 Nf6 Nce2 Ra6 Nd4 Qe7 Nge2 g1B Nf5 g2 Neg3 Ba8 Ng7 Nd5+ Kd3 Bh2 Qe2 g1B N3f5 Bdg3 Bg2 f1N b6+ Kc8 c7 f2 b5 Qa3+ Qc3 Kb7 c8R Bh4 Rd8 B2g3 Rb1 a1B Rb2 B1h2 Kc2 Bg1 Qf6 B1h2 Qh6 Bc7 Ra2 Baf6 Bb2 Bhd6 Be5 Ng3 Bd4 f1B Bg1 Nh1 Rd7 Re8 h8Q Bdg3 Rd8 Re4 Rb2 Nf4 Rd3 Bcd8 Ra2 Kc8 b7+ Kc7 Rb2 Re7 Qe8 Rd6 Ra2 Re1 Rb2 d1B+ Kd2 Rf7 Qeh8 Bc2 b6+ Kd7 Ra2 Rc1 Rb2 Bb1 Ra2 Rc6 Rc2 Na6 b8B Kc8 Qhe8 Rb7 Q8e5 Re7 Qa1 Kb7 Bc7 Nb8 Ra2 Rd4 Be5 Rd6 Rb2 Ka6 b7 Bc2 Bd5 Bh3 Bg2 Rec7 Ne8 Rh7 Neg7 Nd7 b8Q Bb1 Qb3 Nb8 Qg8 Bc2 Ra2 Kb7 Rb2+ Bb3 Rc2 Bf7 Qe8 Bg6 Rc1 Kc7 Rf1 Kb7 Rf2
br6/1Brr4/2q3br/Q1rN1nKN/Qb3NQ1/R2n1rR1/Br1k4/2N1n1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 c5 d3 g7 Kd4 e5 a4 c6 h3 e6 f3 b6 f2 c7 h2 b7 h4 e7 a3 e8Q a2 b5 f4 b6 f3 Qb5 h3 Qdb3 Nd7 b8N Ne5 b7 Qd6 Qd7 Rh7 Qe7 Bf5 c8B Bg6 Be6 Nh6 g8N Nf5 Nc3 Qc6 Qd6 Rc7 Nd7 Rb8 Bg2 f1R Na4 f2 Ba3 Rb1 Ne7 f1R Nf6 Rf3 Nh5 Rb2+ Qc2 Ke4 Qc5 d4 Nd5 Bd6 Ndf4 Be7 Rc1 a1N Nb6 Bf8 Qa5 Bb4+ Kd1 Ke3 Ba2 d2 Nge2 Nd3 Qca4 Nc2 Rg1 h1B Ra1 h2 Nc1 Nce1 Nbd5+ Ke4 Ke2 d1R+ Qc2 Bc3 Bc5 Bb4 Nb3 Rc1 Ba7 Re8 b8Q Rg8 Qbb5 Rb8 Qd2 Rc5 Nc1 Nf2 Qba4 d3+ Kf1 Kd4 Qdd1 d2 Ke2 Nfd3 Bb6 Rg3 Be4 Rf3 Rg3 Bg2 Bb1 h1R Ra3 Rh3 Ba2 Bh1 Nhf6 Rh6 N6h5 Qd7 Ne7 Qb5 Bb7 Qc6 Ned5 Re3+ Kf1 Rf3+ Kg1 Bg2 Kh2 Bh1 Qe2 d1R Kh3 Rdd2 Kg4 Rd1 Qg2 Rdd2 Ndf6 Ke3 Kg5 Rd1 Qh3 Kd2 Qg4 Qb5 Qh3 Rf2 Bc8 Ne5 Rg2 Rc4 Nb3+ Kc2 Ne8 Rdd7 Qg4 N5d3 Rg3 Ba8 Bb7 Qc6 Nef6 Rf3 Nc1+ Kd2 Bg1 Rc5 N6d5
1B4q1/2b5/N1rbQ1NN/1r2n2K/r3k3/3bQn2/q2bBRb1/bQQ1RbR1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 c5 g5 h5 a5 c6 g3+ Kf3 g4+ Ke2 d3+ Kd2 g2 h6 d4 b6 g3 h7 f3 b7 f2 c7 a4 b5 a3 b6 a2 Rh3 f4 Ne2 g1B Bg2 f1B Ke1 f3 Rh1 Bd6 Nf4 Ra4 Nd2 Nd7 b8R Bb7 c8Q Ne7 Nb3 Nf5 Nc5 Qg8 Na6 Be3 Rg1 Nh4 Qc6 Be2 Bf1 g2 Rf8 Bd2+ Kf2 Ba8 Rb1 a1B b7 Qa2 Kg3 f2 b8Q Nf3 Rf6 Rc8 Kg4 Bb7 Qb6 Rc6 h8N Bc7 Kh5 Qg8 Rh1 g1B Qe1 Bh2 Rg1 Qa2 Ba3 Bg3 Qc1 Bd6 Bc5 Ba8 Qb3 Bc7 Ba7 Bh2 Bh3 f1B Bg4 Ne1 Qbc4 Ba5 Bf3 d2 Bg4 d1Q Bf3 d3 Qe3 d2 Qb7 Rb6 Bb8 Bd3 Be2 Qdb3 Rf8 d1R Nfg6+ Kd6 Rf7 Bd2 Rf2 Rc1 Qc3 Ke6 Nf7 Bhd6 e5 Rbb4 Qb5 Bag2 Nh6 Nf3 Qb2 Rc3 Re1 Rc6 Qc1 Qc4 Qbb6 Kd5 e6 Nde5 e7 Rb2 e8Q Rb3 Qa5+ Rb5 Qb4 Qcb3 Qd7 Qc4 Qbb1 Qcb3 Qec5+ Ke4 Qc8 Qf7 Qe6 Qg8 Qe3+
Kbk2N2/2Rrn2b/Q1B4N/n3q3/Qb1rrNq1/1b3R1b/BbN2B2/Q3b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 c4 f5 b4 d5 e4 Kd7 h4 g5 h5 f3 e5 a4 c5 a3 b6 a2 b5 g3+ Ke1 g2 Kf2 d3 Ke3 f4+ Kd4 d2 b7 f2 h6 g4 h7 f3 b6 g3 Nh3 g1B Bc4 g2 Na3 Qe8 Rb1 Bh2 Rf1 g1B e6+ Kd8 c6 a1B+ Bb2 Ra7 Qa4 d1B Ba2 Bg3 Bc3 B1h2 Rb2 Bc2 Be1 Be4 Nc2 Bd7 Rh1 f1B Rg1 Bc4 Rf1 f2 c7+ Ke7 Kc5 d4 c8Q d3 Rb4 Nc6 b8Q d2 b7 d1Q Kb6 Na5 Qe5 Bb3 b8N Bc3 Qa6 Kd8 Rb5 Bfb4 Qg7 Bc8 Nd7 Bb8 Nf8 Bhe5 Qg1 Bd2 Qh1 Bb2 Qg1 Rc7 Qh1 Rc4 Nf4 Rd4 Qg1 Qeh5 Qh1 Qe5 e7+ Ke8 Qg1 Bh3 Qh1 Qg4 Qg1 Kf7 e8B+ Ke7 Bc6 Kd8 Qh1 Nc4+ Kb7 Na5+ Ka8 Bg6 Rg1 f1R Bg3 Re1 Rf1 Re3 Rb7 Kc8 Rf3 Ree4 Qa1 Be1 Bf2 Nh6 Bg1 Nf5 Bf2 Rg8 h8N Bh7 Nf7 Rg7 Nh6 Rgd7 Q6b5 Ne7 Qd3 Qd5 Qa6 Qe5 Rc7+
1bN2N2/b2rnkN1/4q1n1/5Q1r/1nb2Brb/3R2nR/RBQ1n2K/2bB1B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 Kg2 a5 h4 f5 e4 d5 c4 g3 b4 g4 b6 d3 b5 d2 h5 a4 b7 d4 h6 d3 b6 a3 e5 a2 c5 Be7 c6 Ra4 h7 Qd6 e6 Bh4 c7 Nd7 b8Q Ne5 e7 Ng6 b7 Qe6 Nh3 f3+ Kg1 f2+ Kg2 f4 Rh2 f3+ Kh1 Kf7 e8N N8e7 Qb3 d1R Nf6 d2 Nf4 Bd7 c8B Bb5 Rg2 Bc4 Rg1 g2+ Kh2 Rb4 Qe5 Ra4 Qf5 g3+ Kh3 Rb4 Rh1 g1B b8R g2 Bd7 Bh2 Rb5 g1B N4h5 Bb8 Qc2 Ra4 Rb3 Rb4 Bd3 f1N Na3 f2 Ng7 Ng3 Ba4 f1N Nb5 Ne3 Na7 N3d5 Bf1 Be3 Nc8 Bea7 Rab1 a1B Kh2 Bae5 Rd3 Bb2 Ra1 Ba3 Bb3 Ra4 Bb2 Nb4 Be5 Bc1 Bf4 Re1 Ra3 d1N Ra2 Rd8 h8B Re5 Rg1 Nc3 Rh1 Nce2 Nd7+ Kg8 Nf8 Rd7 Kg2 Rea5 Rh3 Rb5 Kh2 Rbd5 Ne8 Rc5 Bf6 Kf7 Ng7 Rca5 Qg5 Rb5 Bb2 Rba5 Qg4 Rh5 Qf5+ Qf6 Qb1 Be6 Bd2 Nbd5 Ba3 Rg4 Bd1 Nb4 Bf4 Bb3 Qc2 Bc4 Qc5 Qe5 Bb2 Qe6 Qf5+
R4q2/KNn1Q1b1/B1r1br2/B1nrNn2/1Rn1Rbn1/Rq2n3/8/4kQQN b - - 0 1 illegal: No possible last move, all moves rejected
1b1Q1NN1/1b2q1qn/q2r4/1n3BN1/QQN1B3/2nqB3/rRR2k1K/q1q1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 Kg2 h5 c4 f5 c5 a5 g5 d3 c6 Kd4 c7 d2 e5 Ke3 b6 a4 g6 f3+ Kh3 a3 b5 f4+ e6 a2 b7 f2 g7 d4 b6 f3 Na3 d3 Rh2 Rh6 Be2 f1R Rg2 f2 Qa4 Re1 Qg4 f1Q e7 Rd6 e8Q+ Qe7 Nf3 Na6 b8N Nf6 g8N Bb7 c8B Nh7 Qga4 Nc7 Qg6 Nb5 Rb1 a1Q Be6 Qag7 Kh2 h3 Ra1 h4 Qgg4 Ra6 Rg3 Kf2 Rb1 d1N Rb2 d2 Ng5 Ndc3 Qgb4 d1Q Bf5 Qd3 Nc4 Ra5 Nd7 Ra6 Qc2 Ra2 Bf3+ Qfe2 Bd2 Q2e6 Rg1 Qeg6 Kh1 h2 B3e4 Qge6 Nde5 Qc8 Ng6 Qa8 Qca4 Qa6 Nf3 Ke2 Kg2 h3+ Kg3 h1Q Rg2+ Kf1 Re2 h2 Rg2 Bd5 b7 Qg1 b8Q h1Q Qd8 Bb7 Bf4 Qge3 Rgc2 Qc1 Bd2 Qg1+ Kh3 Q1d4 Kh2 Kf2 Ng5 Qc7 Be6 Rd7+ Qd6 Nb1 Rb4 Qa1 B6f5 N1c3 Rbb2 Be7 Qe8 Qd8 Qdb4 Bd6+ Nce5 Qdf6 Qd8 Bb8 Nf8 Rd6 Nc4 Qfe7 Be3+
Qq2n2q/kbqR1Kb1/2Qrn3/nB4N1/3qBQqq/1N1NBN2/7r/1bR5 b - - 0 1 illegal: No possible last move
B2r1bb1/k3nN2/5R1Q/n1R2Q1q/2Nb4/Q4rB1/1bqN1n2/bq1NBKb1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 a5 b4 e5 c4 g5 h4 d5 b6 Kd7 h5 Kc6 b5+ Kb7 f5 e3 c5 d3 h6 e2 f6 d2+ Kf2 e1Q+ Kg2 d4 f7 a4 h7 g3 Nh3 g4 Qc2 d1Q Qb3 a3 Qa2 d3 Nf2 d2 Qb3 e4 Rh5 a2 Qa3 Qc2 Nd1 e3 Rd5 Ra5 c6+ Ka8 b7+ Ka7 c7 e2 Rf5 Be6 c8Q Ne7 Rf6 Nbc6 b8N Qe8 Nd7 Rg8 Kg1 g2 h8N Ra6 Nb6 Na5 Nc4 Rc6 Ndb2 d1N Nbd2 Nf2 Nd1 Rc5 Bb2 Rf5 Rc1 a1B Bc3 Rf3 Bb4 Bd5 Qf5 Be6 Kh2 g1B+ Kg2 g3 b6+ Ka8 b7+ Ka7 Qg5 Qb5 Qh6 Qh5 b8B+ Kb7 Bf4 Ka7 Bc3 Bd5 Rb1 Be6 Rb5 Bb2 Rc5 Ba1 Nde3 Qeb1 Nd1 e1B Bd3 Bb2 Be4 Ba1 Kf1 g2+ Ke2 Nh1 Bb7 Bd4 Ba8 g1B Bg3 Nf2 Kf1 Bd5 Bb4 Be6 Ne4 Bec3 Ned2 Bcb2 Bc3 Bg7 f8Q Bd5 Qc8 Rd8 Qf5 Bg8 Nf7 Bf8 Ne4 Be3 Be1 Bed4 Ned2
5qqR/2b1nR2/KnNNr2b/3r1RrQ/1B1B2r1/1R2k1Nr/2Br2b1/1n1Q4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 Kb5 f5 c4 d5 e3 f3 g5 f2 b7 d3 g6 h3 g7 d4 c5 h4 c6 f4 c7 d2 Qh5 d1R Qh6 d3 Ba3 a4 Ra2 f3 Ra1 d2 Ne2 h2 Qh5 h3 Nd4 Nd7 b8B Bb7 c8N Nb6 Be5 Ra6 Nc6 Ne7 g8Q Bh6 Qg1 Rg8 Bc3 Rg4 Bc4 f1R Bb3 f2 Bc2+ Kf3 e4 Qf8 e5 Ke3 e6 Rfe1 Nd4 Bg2 Nd6 Qg8 Nc6 Re2 Qe1 f1Q Ra2 Qf4 Rf1 Qff8 Rf7 h1R Rb2 h2 Rb3 Rg1 Rf5 Ng6 e7 h1R e8R+ Ne7 Rc8 Rh3 Rc7 Ra8 Rd7 Rd8 Ka6 Re8 b5 Rd8 Bab4 a3 Rf1 a2 Rf5 a1B Qf1 Rde1 Ra7 d1N Nd2 Rg5 N2e4 Rd2 Ng3 Rd7 Ne8 R7d5 Nd6 Nb2 Rb7 N2c4 Rc7 Ree2 Qd1 Na3 Ra7 Nb1 Rd7 Na8 b6 Bb2 b7 Nb6 b8R Ba3 Ba5 Bc5 Rbd8 Bd4 Bab4 Be5 Nb7 Bc7 Nd6 Nec8 Rh7 Ne7 Rc8 Rf1 Rh8 Rf4 Rb8 Rfg4 Rf7 Nbc8 Rb5 Nb6 Ra5 Rf2 Rb5 Rf6 Rc5 Re6 Rb5 R5d3 Rbf5 Rd5 Bd4#
2bK1Q1r/1BB2R2/Q4r2/B4q2/kqq3R1/b2BN1q1/RNqrnN2/n5bq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 e4 f5 g4 a4 b4 a3 c4 d3 c5 d2 g5 f3 b6 Kc6 b7 h3 g6 h4 g7 f2 Bb2 d4 Nc3 a2 Bc1 h2 Na4 f4 Be2 f1Q Nb2 d3 Nh3 Kb5 c6 f3 c7 Ne7 Kf6 f2 g8R Qd4+ e5 Nbc6 b8B Nf5 Rg4 Ne3 Rhg1 Qe1 Rf1 Qc4 e6 h1Q e7 Ra6 e8N Qh2 Ng7 Nc2 Nf5 Qg3 Ne3 Bc5 Na4 Bb6 Nb2 N6d4 Ke7 Ba7 Ng2 Rf6 Ne3 Na3 Qb3 d1R Bd2 Nac2 Qa3 Bb6 Bc3 d2 Bd3 Ne2 Qa7 Rc1 Qa8 d1Q Qb7 Qdd2 Nbd1 Ka4 b5 Rb1 Bb4 Rb2 Ba5 Qc1 Qc6 Qeb4+ Qd6 Bd4 b6 Qb1 b7 Ba7 Rg1 f1Q Nhf2 h3 Rg7 h2 Rf7 h1Q Rg2 Rh3 Kd8 Rh8+ Qf8 Bd4 Rg1 Qfh3 Rg2 Qf5 Rg1 Be6 c8B Qc1 Bbc7 Bc5 Rb1 Na1 b8Q Rd2 Rb2 Q1c2 Bb7 Bc8 Qa7 Bd4 Rb1 Bb2 Qa6 Ba3 Rb2 Nb3 Rg7 a1B Ra2 Bd4 Rf7 Na1 Rg2 Qgf4 Rg6 Qg3 Rg4 Qgf4 Ng2 Qbb2 Nh3 Bg1 Nge3 Qbb4 Nhf2 Qg3 Nb2+
N2n1rNr/Q7/1BqrbQq1/Rb5N/RB1Nr2k/7r/1b2nK2/1Rbb1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 g4 Ke7 c4 Kf6 b4 Kg5 e4 a5 c5 h5 b6 d5 b7 f5 c6 d3 e5 d2+ Ke2 d4 e6 d3+ Kf3 h3 b5 h4 b6 a4 e7 a3 e8N a2 c7 h2 Be2 h3 Ba3 Ne7 Bc1 Bh6 Bf1 Nec6 Qb3 d1R Ne2 d2 Bg2 Nd4+ Kf2 f3 Qd5 Ra4 Qe6 f4 Na3 Qd6 Nc4 Nbc6 b8B Nd8 b7 Kh4 g5 Bd7 Qf7 Qg6 c8R Be6 Nb6 Rc4 Rg1 h1Q Ba7 h2 b8Q Ra4 Rb1 a1B Nf6 Bb2 Nh5 Rc4 Na8 Rb4 Nc3 Ne2 Qf6 Rd4 Bh3 Re1 Rg2 d1B Rc5 Rd6 Rg1 Bg7 Bd2 Bc1 Qf5 Be5 Nb5 Beb2 Ra1 Nc3 Rd5 Re4 Bb6 Ne2 Bf1 Qg2+ Ke1 h1R Qa7 Rh3 Bb4 Qh1 Nd4 Qg2 Qf6 Qh1 Bg2 f2+ Kf1 Rd7 Rda5 Rd5 Bf3 Rd6 Bg4 Qf3 R1a4 Qc3 Kg2 f1B+ Kf2 Qc7 Bf3 Qc6 Bg2 f3 Rh1 Ng3 Rg1 Bb5 Bf1 Ne2 Qe5 Qf5 g6 Qf7 g7 Qg6 g8N Ng3 Bc4 Ne2 Kf1 f2 Qf6+ Bg5 Kg2 f1R Qb8 Bc2 Qe5 Nc3 Qa7 Rf8 Rb1 Bd1 Bf1 Ne2 Qf5 Bd2+ Kf2 Bdc1 Qf6+
1NQn2rq/n2nN1rB/1Rr2b1n/b1B2Qk1/1R1QBn2/1q2r2b/2R5/3K1R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kf6 g4 h5 b4 a5 c5 d5 e5+ Kg5 e6 f5 e7 a4 e8Q h3 c6 a3 b6 a2 c7 d3 b7 d2+ Ke2 d4 b5 h2 b6 h4 Qc6 h3 Bg2 d3+ Kf1 f3 Qd6 f4 Nc3 f2 Qd7 Ra7 Qe8 Nh6 Nce2 Nd7 b8Q Bb4 b7 Rg8 Qc2 d1N Qf8 d2 Rb1 a1B Qf7 Nc3 Qc4 Ba5 Qd4 Nb5 Rb4 Nf7 Qb3 d1N Be3 Ndc3 Ng3 Nd5 Ke2 f1R Qbc4 Rc1 Be4 Rc3 Qb3 Rc6 Nf5 Qe7 Kd1 Qe6 Qa8 Nd8 b8R Rb7 Qa6 Na7 Ne2 Bb2 Bg1 f3 Ne7 Nf4 Bf2 Qf7 Rf1 h1N Qe6 h2 Bg1 f2 Qac4 Kh4 g5 Ng3 g6 h1Q g7 Kg5 Qc2 Nf5 Rb6 Rf8 g8B Qh8 Bh7 Nh6 Rb4 Rg8 Qcc3 Rb5 Rb6 Rbc5 Qc1 Rc3 Qc2 Re3 Qcc4 Ba6 c8R Bb7 Rc7 Bc8 Qc1 Rd6 Rc2 Rc6 Qd3 Bf6 Nd4 Qg6 Qdd2 Qf5 Qc3 Qd5 Q3a1 Qb3 Qab2 Rcc3 Ndc6 Rg7 Nb8 Rc6 Qd4 Rg8 Re1 f1R Bf2 Rg1 Rf1 Rg2 Qdb2 Rf3 Bc5 Re3 Qc3 Kh5 Q1d2 R2g7 Qdd6 Kh4 Qcd4 Kg5 Qc7 Bb7 Qc8 Ba6 Rf2 Bf1 Rf3 Bg2 Rf1 Bh3 Qf5+
4rkb1/1Nb1R1n1/nR3q2/Q1B2Nn1/K4QBn/2r1bqRq/2nNQ2q/7R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 a5 c4 h5 Kc2 a4 g4 f3 b6 f2 g5 d3+ Kc3 d2 b7 a3 Kb3 f4 e5 h3 e6 d4 g6 a2 c5 h4 c6 d3 g7 f3 e7 h2 c7 h3 b5 Nh6 g8N Na6 b8Q Nf7 b6 Be6+ Ka3 Bh6 c8Q Be3 b7 Ng5 Nh6 Bg8 Qe2 d1N Qcc2 d2 Bg2 f1Q Qa7 f2 Nc3 Rc8 Nd5 Rc3+ Ka4 Qa8 Rb1 a1B Nf3 Qb8 Rg1 h1N Nf4 h2 Qc4 Ng3 Bh1 Nf5 Ne6 Ng7 Qf4 Qh3 Nc5 f1Q Ba3 Qe5 Qce4 Qf6 Nf5 Bb2 Bg2 h1Q b8R+ Kf7 Qaa8 Q1h2 e8R Bc1 R8b6 Qe2 N3h4 Qef3 Nb7 Bb2 Bb4 Ba3 Be7 Bd6 Qd3 Bc7 Bc5 Be5 Qa7 Bc7 Re7+ Kf8 Qe2 Bf2 R1b3 Ne3 Re1 d1N Rh1 Nc2 Bf1 Be3 Qa8+ Nb8 Qa5 Na6 Ra3 Bc1 Bg2 Nde3 Bf1 Ng2 Rab3 Qfg4 Nf3 Be3 Nd2 Nh4 Bg2 Qgg3 Bf3 Qgf2 Bh5 Qff3 Bg4 Qff2 Rbb1 Rh6 Rbg1 Qf7 Ne4 Qff3 Rg3 Re6 Nd2 Qf6 Rd7+ Re7 Nbd6 Re8 Re7 Qd5 Nb7 Qe4+ Nc4 Qf3 Nd2
1qBK4/n1R1N1n1/1N3nnR/2B3N1/2rN2b1/r2kbQQ1/2R1bQ2/n2rrq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 a2 Be2 f2 Ba3 f1N Bc5 f3 Qf2 h2 Nh3 Ra3 Ng5 Nf6 g8N h3 Ne7 Nd2 Bd1 Qe8 Kd6 Rh4 Kc7 Bh6 e5 Nc6 b8R Bg4 b7 Na7 Rc8 Qf8 b8Q Qg8 Ne4 Be3 e6 Qh8 Ba4 Qf8 Rc1 h1N Rc2 h2 Ng5 Ng3 Bd7 Nf5 Qb7 h1B Qg3 f2 Qbf3 f1Q Qgf2 Qf7 Kd8 Ng7 Rc7 Qh5 Q3g3 Bhf3 Bc8 Be2 Qff3 Qg6 Qff2 Nf3 Nd2+ Kb5 Re1 a1N Nb3 d2 Rd1 d3 Nd4+ Kc4 Rdc1 Qg2 Rh1 d1R Rh3 d2 Rh2 Kd3 c4 Rh7 Rh6 Ne5 Nb5 Qf7 Rh3 Nge8 Nc6 Rg1 e7 d1R Bb7 Qf1 Bb6 Qd5+ Rd7 Bh5 c5 Nc7 e8Q Bhf3 Qh5 Qd6 Ne7 Qe1 c6 Ng6 Bc5 Nce8 c7 Ng7 c8N Rh1 Qhg4 Rh4 Nb6 Qg1 Qh5 Rc4 Nd4 Qb8+ Bc8 Qg2 Rb7 Rhe1 Rc7 Qg1 Qhg4 Qf1 Q4f4 Bh5 Q4f3 Bg4 Rh6
3rQq2/nBq1B1Rn/R2N1n1b/b1Q1r3/1Q1r1bBB/2n3nN/b1K5/k4N2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Ke5 c4 d5 e4 a5 h5 f5 b6 g5 h6 f3 b7 a4 b5 d3 h7 Kd4 b6 f4 c5 a3 c6 g3 e5 g4 c7 f2 e6 g2 e7 g3 e8Q a2 Be2 f1N+ Ke1 f3 Qb5 Bh6 Nd2 Kc3 Qd7 d4 Rh5 Ra5 Rb5 Nf6 Rh5 Re5 Rb1 a1B Nb3 Nc6 b8N Na7 Qd5 Be6 c8B Qc7 b7 Rd8 Nh3 g1N h8Q g2 Rg5 Ng3 Qe8 Bg8 Na6 d2+ Kf2 d3 b8B Be6 Rg7 Bf4 Qf1 d1R Qe1+ d2 Ba3 Kc2 Qdb5 Bc3 Ra1 Ba5 Be7 Kb2 Bb7 Rd4 Qc5 Bh6 Nc1 Ba2 Nb3 Bf4 Qcc6 Rd8 Nac5 Rd4 Ne4 Bh6 Nf4 Nh3+ Ke3 f2 Qc5 g1B Bg4 Ng5 Nh3 f1Q+ Qf2 Bh2 Qb4 Red5 Qg1 Rd8 Nd6 Rd5 Qf2 Re5+ Kd4 Ngh7 Qe3 Ne2+ Kd3 B2f4 Qeb6 Qf2 Q6c5 Ng3 Rg8 Rde1 Rg7 d1N Nd2+ Bb3 Qg8 R1e4 Qe8 Nc3 Nf1 Rc4 Ra4 Kb1 Qa3 Ba2 Qab4+ Ka1 Ra3 Qf3+ Kc2 Rd4 Ra4 Nd7 Bh4 Ndf6 Ra3 Bb6 Ra6 Ba5 Nf5 Qf7 Bd6 Qf8 Be7 Qc6 Nd6 Qd7 Bf5 Qc7 Bg4
b1KNrrQR/4k2q/4NR2/1Bb1qN2/b1nB1r1q/1QNQ1B2/8/bbn4q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Bf5+ Kd2 d3 Kc3 d2 Kb4 d4 Kc5 d3 b7 Nd7+ Kd6 Nb6+ Ke5 Nh6 Be2 f1R g8Q f2 b8N Nc4+ Kf6 Nf7 c7 Rh4 c8N Nfe5 b6 Rf4 b7 Qd4 Qb3 d1B Bf3 d2 Nc3 Bb1+ Ke6 Nd3 Bb2 Nc1 Nc6 Qd8 Qb5 Ba4 b8Q d1Q Nge2 Q1d3 Ned4 Qh7 Qd5 Qc7 Nd8 Re1+ Qe4 f1B Qb3 Bg2 Rf1 h1Q Qe2 Ne3 Qd3 h2 Rf2 Qa5 Kd6 Qg5 Kc7 Nc4 N4e6 Qe5+ Kb7 Re3 Nd6+ Kd7 e8B+ Ke7 Bec6 Qe1 Bb5 h1Q Rf1 Qeh4 Nf5+ Kf6+ Nf7 Bc5 Rf2 Rf8 Rf1 Q7h5 Nfd8 Qh7+ Kc8 Re2 Bg4 Ba8 Bf3 Bc2 Rb1 a1B Rf2 Na2 Rg1 Bb1 Rg5 Nc1 Rh5 Qa7 Rh8 Qah7 Nd1 Ree4 Bd4 Re1 Nc3 Ree4 Nh6 Ke7 Rf1 Re8 Rf2 Rff8 Nf5+ Kf6 Bg2 Q7h6 Nd6+ Ke7 Rf6 Rf4 Bf3 Qh7 Nf5+
2n5/kqn3rR/N1r1qq2/1bQNq1b1/2Rbr3/4Q1BB/b4BR1/1BbN3K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 Kg2 a5 h4 f5 e4 d5 c4 Kd7 b4 Kc7 h5 Kb6 e5 g3 h6 g4 e6 d3 c5+ Ka7 c6 d4 e7 a4 e8R a3 h7 d2 c7 a2 Qa4+ Na6 Rh3 d1R Bd3 f3+ Kh1 g2+ Kh2 f4 Bc2 d3 Bb2 d2 Re6 f2 Nc3 f1B Bc1 f3 Bd3 f2 Nce2 Ne7 Re4 Rg8 h8Q Qd7 Qh5 Bh6 Bb1 Bg5 Nf4 Re1 Nge2 d1Q Nc3 g1B+ Kh1 g3 Rc4 Q1g4 Nd1 Qge6 Nd5 Rg7 Qa3 Re4 Bb2 Rb8 Qe3+ Rb6 Bd4 Bd3 Rh2 f1Q Rg2 Qff6 Bc5 Bb7 c8B Nc7 Bd4 Qdc6 Bd7 Nc8 Bc5 Qe8 Bh3 Qee6 Bd4 Ba6 Bc5 Qb7 Bd4 Ka8 Bc5 Rc6 b6 Bf2 b5 Be1 Bd4 Bd2 Bc5 Bc1 Bd4 Qa7 b7+ Kb8 Bc5 Bc2 Bb6 Bb3 Bd4 Qb6 Bc5 Ka7 b8B+ Ka8 Bd4 Qb7 b6 Bb5 Qef3 Bcf4 Bf2 Bc1 Qe3 Qfe5 Qc5 Q5f6 Qf3 Qfe5 Qfe3 Q5f6 Bc2 Qfe5 Rb1 a1Q Rb2 Q5f6 Bb1 Ba2 Re2 Qae5 Rh2 Ne8 Bd6 Nc7 Rd2 Qa7 b7+ Kb8 Rb2 Qb6 Rbc2 Ka7 b8N g2+ Kg1 Qb2 Bdg3 Qa1 Rh1 Qae5 Kh2 g1B+ Kg2 Ka8 Na6 Qb7 Rh2 Bh4 Kh1 Bg5 Nb6+ Ka7 Rd2 Ba3 Rd7 Bb2 Rg2 Bc1 Nd5+ Qb6 Qf4 Rh7 Be1 Bd4 Qe3 Rf7 Bef2 Re7 Rd8 Rd7 Rh8 Rg7 Qf8 Qb8 Rh7 Qb7 Qc5+
Q1n5/RQ3K2/NB1B1R2/Rqn1Bq2/2rq1k2/3bnBr1/1N3r2/bq1Nn2n b - - 0 1 illegal: No possible last move
nbr4Q/1b4r1/1r3Q1K/1R2n3/1BB1rN1k/2Rr1bR1/4Bqb1/NRr1bQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 e4 Kg5 c4 h5 g4 f5 c5 d5 c6 a5 c7 d3 b6 f3 Ke3 h3 b7 h2 b5 d4+ Kf2+ f4 e5 h4 b6 d2 e6 d3 e7 a4 e8R a3 Re1 h3 Bg2 a2 Re7 Nd7 b8Q Ra6 b7 Nh6 Rg7+ Kh4 g5 Rb6 g6 Bb4 Qe1 d1B Qe5 d2 Rf7 Qf6 Re7 Nf7 g7 Bc3 Qe6 Nfe5 g8B Be2 Bf1 d1R Re8 Rd3 Nd2 Ba5 Rb1 a1B Qd6 Rh7 Ba3 Rg7 Qa7 Qf7 b8Q Bb7 Nb3 Bd1 Be2 Be1+ Kf1 f2 c8R Bb2 Qa6 Bc1 Bh5 Bdf3 Ne2 Bcd2 Rg1 h1R Qf8 h2 Na1 Bb4 Rcc1 Bd6 Bb4 Qf5 Qc8 Bb8 Bc4 Qf6 Rc3 Qf7 Nd4 Bg2+ Ke2 f1R Qd6 Rff3 Qe6 Rfg3 Qec6 R3g4 Ne6 Qf6 Rg8 Qf5 Rf1 Rg1 Rf3 h1B Rg3 Qf7 Qf8 Qf6 Rh8 Rg8 Qh6 Rc8 Rf8 Rg7 Qh8 Rf1 Rg8 Rff3 Re8 Rd4 Rg8 Rfd3 Qf3 Qf8 Qf1 Re4+ Re3 Rb5 Rcb3 Re7 Rg3 Red4 Ref3 Rc3 Bd5 Bh3 Bc5 Nb6 Ba3 Rc1 Qg1 Rg7 Rfc3 f3+ Ke3 f2 Bc4 f1R Qg2 Rff4 Qf1 Na8 Bhe2+ Rh7 Qd6 Rb6 Rb5 Bhd5 Bb4 Bhg2 Qc6 Qc5 Qd6 Bdf3 Qdf8 Rf7 Qfg7 Rfd7 Qf7 Rd3+ Kf4 Qf2 Kf5 R7d4 Nf4 Nc6 Kg6 Re4 Qhe8 Rg7+ Kh6 Ne5+ Qg6 Rcd8 Qh8 Rc8 Qf6+
2QB4/1K1R3B/1b1N4/1R2n2B/rbR1Nk2/2Q2qn1/nb1bn2r/1nQbn2B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 h4 Kf5 b4 d5 b6 g5 b7 a5 b5 g3+ Kf3 g4+ Kg2 a4 c5 d3 c6 a3 h5 d4 h6 a2 b6 d2 c7 d3 e3 Qf6 h7 Ne7 Nf3 Nec6 Nh2 f3+ Kg1 g2 Kf2 g1B+ Kg3 f2 Qe1 d1N Nf3 d2 Na3 Na6 b8R Ne5 b7 Nc3 Rh4 d1N Nc4 Nb4 Nfd2 Nb2 Bg2 N2d3 Bh1 Ra4 Ne4 f1N+ Kg2 Be6 c8B g3 Rb1 a1B Ncd6+ Kg6 Bb2 Ne2 Rd1 Nd2 Qf1 Bb3 Bf5+ Kg7 Bc3 Na2 Ba5 Nb1 Bd8 Bb2 Rd2 Be7 Qc1 Bd1 Rf4 Kh6 Rg4 Nd7 Kf3 g2 Rf4 Bh2 Bg6 g1B Bh5 Rg8 Bg6 Rg7 h8Q+ Rh7 Bh5 Qf5 Qhc3 Bg3 Bg6 Be1 Bh5 Rh8 Bg6 Qd5 Bh7 f5 Rg4 Ndb4 Rd4 f4 Rc4 Nc2 Rg7 Nc5 Rf7 Nd3 Rg7 Bf8 Rd7 Qf7 Rbc8 Qf6 b8Q Bd2 R8c5 Qf7 Qc8 Nce1+ Kg4 Qd5 Rb5 Ne5+ Kf5 f3 Kf6 f2 Kf5 Qc5 Ke6 Qa3 Kd5 Qb3 Kc5 f1N Kb6 Nfg3 Kb7 Be7 Nc5 Kg5 e4 Ng4 e5 Qa3 e6 Ne5 Bc2 Rh2 Nce4+ Kf4 Bd3 Bf8 e7 Bb6 e8B Be7 Bh5 Qb3 Ne8 Bb4 N8d6 Nd4 Bf1 Nde2 Bh3 Qa3 Bf5 Qb3 Bh7 Qa3 Qd4 Qf3 Qdc3
1b6/R2nn2K/r1r3QQ/bBrN2R1/Bb1RBb2/B5Nb/rb6/4Nrkq b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Kf5 Kh4 Kg6 d5 a4 b5 f4 e5 c4 e3 h3 Kg3 h4 Kf2 h5 b3 h6 b2 a5 g3 f5 b4 f6 g2 a6 e2 h7 e1B a7 e4 c6 d4 f7 b3 c7 d3 c5 e3 c6 d2 Qc2 e2 Na3 b1R Rh5 d1R Bg5 b2 Bh6 Bc3 Nb5 Nd7 Nd6 Ne7+ Kg5 Rbc1 Nf3 b1R Ra3 g1B Qg6 e1B Bb5 Bh2 Nf5 Rd2 Ng3 Bb2 Rd3 Re2 Rd4 Ba5 Ne1 Kg1 Ba4 Rg8 h8R Rc3 Rh7 Rc5+ Nf5 Be5 Ng3 Rf2 Bb5 Rf1 Ba4 Ra1 Bb5 Ra2 Ba4 Rb8 a8B Rb6 Bb7 Ra6 Ba8 Bb7 c8B Qe8 c7 Bg2 Bcb7 Bh3 c8N Bb8+ Bd5 Qd8 B8c6 Qb6 Bcb5 Qb7 Nb6 Rc6 Be6 Rc5+ Bf5 Qh1 Nd5 Rh8 Qe6 g6 Bg7 Rcc6 Kh6 g5 Be4 g4 Qg6 Rg8 Nf5 g3 Rg5 g2 Ng3 Rc5 Rh8 Rac6 Kh7 Ra6 Bf6 Bh6 Be5 Rgc8 f8Q R8c6 Bd6 Bb4 Rg4 Bf4 Qfh6 Kh2 Rg8 g1B Rg5 Bge3 Rc8 Kg1 Rc7 Bed2 Ra7 Ba5 Ra8 Rc4 Ba3 Bdb4 Ra7 Rc1 Qe8 R1c5 Qeg6
n2BQbR1/3K2Qb/R5Qb/1B2N3/2r1r3/4n1nr/1nBRrk2/Nq3qQq b - - 0 1 illegal: No possible last move
q1k1r2q/1bbnBr2/q2bR3/NN2n2q/1Q2Rn2/1Q3RQB/Nrb5/Q4K2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 f5 g4 h5 c4 d5 b4 Kd7 c5 a5 g5 f3 b6 d3 b5 h3 e5 d4 g6 h2 b7 a4 g7 f2+ Kd2 f4 b6 h4 Nf3 h3 Qe2 a3 Ng1 f3 Bg2 f1Q Bb2 a2 Na3 f2 Qd1 Nf6 g8Q Ng4 Nc4 Bd6 Na5 Rh4 Qc4 Qh8 e6+ Kd8 c6 Nd7 b8Q Nge5 Rc1 a1B b7 Rf4 Qcb3 Rf7 Rc3 Qe2+ Kc1 f1Q Ba3 Qeh5 Ne2 d2+ Kc2 Qff6 Re1 h1N Rf3 h2 Nc3 Nf2 Re4 h1Q Na2 Nfd3 Bh3 Nf4 Qe1 d1B+ Kd2 d3 c7+ Ke7 Qg3 Bc2 Qa7 Qfh6 b8Q Bb7 c8N+ Kd8 Ke3 d2 Kf2 d1R Qb4 Rb1 e7+ Ke8 Qad4 Rb2 Qdc3 Q6f6 Qa7 Bc7 Qcb3 Qa6 Qad4 Rb8 Na7 Rb1 Qb5 Nc6 Re2 Bc8 Rfe3 Qe4 Qf6 Bae5 Rf3 Qd5 Re4 Ra8 Qd6 Rb2 Qf1 Rb8 Bb4 Ra8 Qa1 Rb8 Bc3 Ra8 Qdb4 Bed6 Bg7 Nce5 Bf8 Rb8 Kg1 Qa8 Nb5 Bb7 Kf1 Nb6 Bg2 Kd7 e8R Rc8 Re6 Re8 Bh3 Kc8 Be7 Nbd7 Qg4 Rg8 Qh4 Re8 Qg3
qr6/1q3qBn/2B1R2b/QQBr1n2/K1Rb4/2Qbr1k1/NRrNB1n1/1b6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb3 a5 g5 d3 g6 d2 g7 a4+ Ka3 d4 c5 d3 c6 f3 b6 Kf4 c7 f2 e5 h3 e6 h2 e7 h4 e8R h3 b7 Nf6 g8Q Bh6 b5 Nh7 b6 Nc6 b8B Nd4 Kb4 a3 b7 a2 Re2 Ra3 Qgb3 Kg3 Qe1 d1R Nf3 f4 Rc2 d2 Rc5 Nf5 Qd5 Re3 Ng1 f3 Nc3 Qe8 Ba6 Qf7 Bb2 Rc1 Rb1 d1R Be2 a1B Rc4 Rc2 Qa5 Rd5 Na2 Rhd8 Bf6 Bd4 Qc3 f1B Ba7 f2 b8Q Bd7 Qb7 Rb8 c8B Ba4 Nf3 Bb3 Bd1 Bd3 Rb2 f1N Qbb5 Ba4 Bc5 Bb3 Nc1 Ba2 Bd7 Bb1 Bg7 Kf2 Rg1 h1Q Ka4 h2 Nd2 Qe4 Bd6 h1Q Bc5 Qee7 Be8 Qb7 Be2 Qe4 Rh1 Kg3 Na2 Qa8 Bc6 Qee7 Qa3 Qeb7 Qab4 Ree8 Rh5 N1e3 Qc3 Ng2 Rh4 Re3 Re4 Qfc7 Re5 Qf7 Re6
K1R2b2/2R3B1/B3b2n/1qrN1q1Q/r1q1k1r1/4b2Q/2nq4/1rnNNBNQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Rh2 h3 Kf2 h5 Kf3 h4 Ke4 Ke7 Kd5 Kf6 e4 d3 Be2 a5 Nf3 d2 c4 a4 b4 a3 g4 a2 b6 Nc6 b7 Qb6 b8Q Na5 b5 Nb3 c5 Ra4 c6 Rh5+ g5+ Kg6 c7 f5 e5 Nh6 Rf2 h2 e6 h1R e7 h3 e8N h2 Qa8 Rg1 Bb2 h1R Nc3 d6 Rb1 a1B Rc1 Qa5 Kc6 d5 b6 d4 b7 d3 b8Q Be6 c8B Qb5+ Kc7 R1h4 Ng7 Rgh1 Qf1 d1N Ba6 d2 Qe4 Rg4 Qe8+ Nf7 Qb7 Ne3 Kb8 d1Q Qh3 Rf1 Ng1 f3 Rh2 f4 Nf5 f2 Ka8 f3 Nd4 Qe1 Nc2 Kf5 g6 Nh6 Rg2 Qd1 Rg3 Qd2 g7 Rd1 g8N f1Q Qbc6 f2 Ne1 Kf4 Rc2 Rb1 Qch1 Nc1 Nd1 Kf5 Bg7 Bd4 Rc3 Nc2 Rc8 Bb6 Rgc3 Be3 R3c7 Rg5 Q1h2 Ke4 Qeh5 Rc5 Bc4 Qfe2 Ne7 f1Q Nd5 Qef3 Q2g2 Qfd3 Qgh1 Qd4 Q1h2 Qf5 Bf1 Qdc4 Qh1+
3BNBRn/2b1r3/2B5/2qn3K/RN4n1/1Qb2Nb1/bkn2q2/rqrB2QR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 h4 Kd5 b6 Kc4 e4+ d3 b7 f5 h5 d5 c3 a5 h6 g5 b5 g3+ Kf3 g4+ Kg2 d4 b6 a4 h7 a3 e5 a2 e6 Qd6 e7 Bg7 e8B Nc6 b8B Ne5 b7 Nh6 Nh3 f3+ Kg1 f2+ Kg2 f4 Bh5 Be6 Bb2 Re8 h8N Nef7 Ba7 Re7 b8R Qc5 Ng6 Nh8 Be2 f1N Nf2 f3+ Kg1 g2 Nh4 Ne3 Kh2 g1B+ Kg3 Nd5 Nf5 Bh2+ Kh4 g3 Ba3 g2 Rg8 g1B Bb6 Bc7 Be8 Ng4 Kh5 Bgh2 Bc6 Bhg3 Qg1 Kb3 c4 d2 Nd6 d1R Ne8 Rc1 Nd3 f2 Nb4 f1Q Nd2+ Kc3 Ba5 d3 Nf3 d2 Bd1 Qff2 Bb6 Bcd6 Bd8 Bc7 Bb3 d1N Bba4 N1e3 Bd1 Qb5 c5 Nc2 Bb7 Ra7 c6 Qbc5 Ba8 Kb3 Bb7 Bc3 Ba8 Bcf4 c7 Ra4 c8Q Bc7 Na6 Ra5 Bb4 Kb2 Bc6 Qb5 Bd6 Qbc5 Nb4 Ka3 Rb1 a1Q Qa6 Qa2 Ra1 Kb2 Qc4 Qb1 Ra4 Rb5 Ra6 Ra5 Ra8 Ra1 Ra4 Rg7 Bf8 Re7 Qe2 Bc8 Qc4 Ba6 Qe4 Bc4 Qd3 Bb3 Qc4 Ba2 Qb3+
1K1Q1RQ1/r1n1NNrR/bn2n2r/BBBQrQr1/4nR1b/7b/2k5/2r3q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 d5+ Kf3 Ke5 c4 a5 b4 h5 g4 f5 e4 d3 g5 Kd4 g6 a4 g7 a3 c5 a2 e5 h3 c6 d2 b6 h4 e6 h2 e7 h3 e8R Be7 b7 Rh5 b5 Bh4 c7 Nd7 b8Q Ba6 c8Q Ne7 g8Q Nb6 Qbb7 Rg5 Qbc6 Ra7 Qdc2 d1N Qgg6 Nc3 Qc6e6 Ne4 Rh8 Qg8 Ke2 f3+ Kd1 f2 Ke2 f4 Kf3 Nc5 Bc4 f1N Qcf5 Ng3 Bd2 Nge4 Ba5 Rb7 Qef7 Ne6 Nc3 Qg7 Re1 a1R Rf8 Ra7 Qd8 Rc1 Rf1 Re1 Ba2 Kd3 Bc4+ Kc2 Qg8 d4 Qfd5 d3 Qgf5 d2 Rf2 Na8 b6 Nc8 b7 Ncb6 b8B Nac7 Bb5 Re2 Rf1 d1R Rf2 Rc1 Rf1 Ne8 Bd6 N8c7 Bc5 Reg2 Q5d6 Qd4 Nd5 Rg7 Qde5 R2g5 Ne7 Qa1 Qed5 Qb1 Ke2 f3+ Ke3 f2 Nf3 Qa1 Ne5 Qb1 Rfg1 f1B Nf7 Bg2 Rf1 Qa1 Rhg1 h1R Rf4 h2 Rgf1 Rg1 R1f3 h1R Rh3 Bg3 Rh8 Rh6 Rh7 Bh3 Kf3 Rgh5 Ke3 Bh4 Kf3 Ng5+ Ke3 Qb1 Kd4 Nge6+ Ke5 R1g5 Qd4 Qb3 Q4d7 Qg3 Qd5 Kb2 Qb8 Qg1 Qbd8 Nd2 Kd6 Ne4+ Kc6 Kc2 Qf6 Nc4 Qg6 Re5 Qf5 Rhg5 Kd7 Rb7 Kc8 Ra7+ Kb8 Nb6 Be2 Bb5 Bc4 Ba6 Bb5
2Nn4/3nr2n/bQ1RQ3/k3n1NQ/4K3/n5bQ/rr2b1R1/q1BnbNRB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 c4 d5 b4 Kd7 g4 Kc7 e4 Kb6 g5 f5 g6 d3 e5 d4 g7 h3 e6 h2 e7 d2 e8R a4 Re7 a3 Nc3 d3 Re1 h4 Re5 a2 Re6+ Nc6 Re5 h3 Qe2 d1N Re8 d2 Rb1 a1B Rb3 Ra2 Re4 Qd4 Qe3 Nf2 Qd3 d1N Nge2 Ba6 Qd2 Nf6 g8N Rh7 Ne7 Nd8 Qc2 Nd7 Bg2 Nd3 Rg1 h1R Rb2 h2 Qb3 Rf7 Ng3 N3e5+ Ke2 Bh6 Nf1 Bg5 Re3 Bh4 Ne4 Bg3 Rd3 f3+ Kd2 f2 Ng5 f4 c5+ Ka7 c6 Kb6 c7 f3 c8Q Rh7 Ne3 f1B Qbc4 Be2 Nf1 f2 Qe6+ Ndc6 Qh3 Nd8 Rc2 Qb2 Bc6 Qa3 Rd6 Bd4 Rb2 Bc3+ Kc2 Be1 Qh5 Nf6 Qch3 Ned7 Qe6 Rg7 Qhh3 Nh7 Nc8+ Kc7 Bf3 Re7 b6+ Kb8 b7 Kc7 Ne3 f1N b5 Nd2 Nf1 Nc4 Bc6 Bg4 Qh5 Qa4+ Kd3 Be2+ Ke4 Na3+ Kf5 Qa5 Ke4 Qc3 Rbd2 Qa1 Rb2 Bg4 Rbg2 Be2 Na7 Kb6 b8Q+ Ka5 b6 Rb2 b7 Ra2 Qc8 Rb2 b8Q Ra2 Rf2 Rb2 Rgg2 Rg1 Rf7 h1N Rg7 Ra2 Qb3 Rb2 Qcb8 Ra2 Nc8 Nhf2+ Kd5 Nd3 Ke4 N3e5 Ba8 Bgf2 Qbh3 Bg3 Qa7 Rh1 Rg1 Rh2 Qb6+ Ka4 Kf5 Rb2 Bh1 Rf2+ Ke4 Rg2 Qa7 Ka5 Qd4 Ra2 Qe3 Rh2 Qb6+ Ka4 Rf7 Bed3+ Kd5 Rhb2 Rf2 Bdc4+ Ke4 Be2 Qb7 Ka5 Rfg2 Bg4 Qa7 Be2 Qb6+
N3QbB1/1nb2r2/KQ2b2r/1Q1Nb3/R1q1R2B/1b1n1NN1/4B1rb/4n1rk b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 e4 Kh4 b4 d5+ Kb3 f5 Ka4 g5 c4 a5 c5 g3 b6 g4 Kb5 f3 e5 d3 h3 d4 b7 d2 e6 a4 e7 a3 e8B g2 c6 Kg3 c7 a2 h4 f2 h5 f4 h6 f3 h7 d3 Bg6 Ne7 Qa4 d1R Bb2 d2 Bc2 Qd5+ Kb6 Nec6 b5 Na6 b8Q Ncb4 Bf6 Nd3 Bd4 Be6 Qa3 Qc4 Qb3 Nac5 Qe8 Nb7 Be2 f1R c8N f2 Nf3 g1B Bf6 Kg2 Bh4 g3 Nc3 Bh2 Nd5 Rg1 Qb4 f1N Bb3 Ra7 Qd6 Rg8 h8N Ne3 Nf7 Nc2 Nh6 Nce1 Nf5 Rb1 Qdc6 d1B Qc5 Rb2 Qb4 Rg6 Qa4 Na5 Qb4 Rc7 Ka6 Rh6 Ncb6 Nb7 Na8 Rf7 Qc5 Rd2 Qb6 Bc2 Rd1 a1B Ba2 Bag7 Ra1 Bd4 Bb3 Be5 Ra4 Kh3 Ba2 g2 Ng3 Bb3 Qbc6 Qb4 b6 Qc4+ Qb5 Rf1 Bb1 g1B Ba2 Bgc5 Rg1 Bcd6 Rg2 Rg1 Rf2 Na5 b7 Bc7 b8Q Nb7 Rf1 Kg2 Qa7 Nc2 Rc1 Nce1 Qb6 Qc5 Rcc4 Rb2 Nf5 Kh1 Re4 Rd2 Bd1 Rf2 Be2 Qc4 Ng3+ Kg2 Rd4 Bd1 Re4 Qc2 Q6c6 Bd7 Reb4 Rf4 Ne4 Kh1 Ndf6 Rfg2 Bg8 Be6 Nd5 Rf7 Qcb6 Qc5 Nef6 Bc2 Re4 Qc4 Nh5 Bb3 Ng3+
7n/2rn1b2/4bQ1R/2q3rB/4Nrbk/rRQ5/NnBbbN1B/1Q1Qn2K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kf6 e4 Kg5 c4 d5 g4 h5 Kg2 f5 b6 a5 b5 d3 c5 d4 c6 d2 e5 h3+ Kh2 d3 e6 f3 e7 h4 e8B a4 c7 f2 b7 f4 b6 a3 Bb5 a2 Nc3 f3 Nce2 Be6 c8Q Ra3 Qcc2 Qd5 Nd4 Bb4 Bc6 Rh5 Be8 Ne7 Nb5 Qc5 Qb1 Ng6 Ne2 Nd7 b8Q Nh8 b7 Bc3 Bg2 f1B Qg3 f2 Nf4 Be2 b8Q f1R Be4 Rh7 Qb2 Rf7 Rb1 a1N Qb7 Nc2 Qf3 Rg7 Bh5 Ne1 Qg3 Ba5 Nc3 Rg6 Na2 Rf2+ Ng2 Rf4 Ne3 Rg8 Qc6 Rc8 Qa1 Rc7 Rb3 Bb4 Bb2 Bc3 Qdb1 d1N Kg1 d2 Bc2 Ba5 Be5 Nb2 Rh2 d1B Kh1 Bd2 Qf2 Qe7 Qc3 Qc5 Qg1 B2c4 Qf1 Bde2 Nd1 Bf7 Nf2 Bce6 Rg2 h2 Rg3 Nf3 Qfd1 Ne1 Rh3 Ned3 Kg2 h1B+ Kh2 Bg2 Kg1 Bgf1 Kh1 Ne1 Rh2 h3 Bd6 Kh4 g5 Rfa4 g6 Rf4 g7 B2g4 g8N Bd3 Nf6 Bde2 Rg2 h2 N6e4 Bgf5 Rg7 Bfg4 Rh7 Nf3 Kg2 h1R Rh6 Rf1 Be5 Ne1+ Kh2 Rg1 Bd6 Rg3 Kh1 Rd3 Be5 Rd5 Bd6 Rg5 Be5 Rff5 Bh2 Rf4 Qf6 Na4 Qad4 Nb2 Qc3
1bnR1rQ1/rr1k1B2/N3rnqN/K2N4/3qqrN1/B6q/1Rb1Q3/2R2r1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 a5 c4 h5 g4 a4 g5 a3 g6 h3 b6 f3 c5 d3 Kc3 h4 g7 f2 b7 a2 b5 d4+ Kb4 d2 b6 f4 e5 d3 e6 h2 e7 f3 c6 h3 c7 Rh7 Be2 f1R Qe1 d1R Qh4 f2 Qg5 d2 Ba6 Rde1 Ka5 d1Q Qd2 Qd4 Nf3 Bf5 Nc3 Qc2 Ne5 Nd7 b8N Ndf6 Ng4 Re6 Rb1 a1R+ Ba3 Bg6 Rg1 h1Q b7 h2 Rb2 Qhe4 Nd5 h1Q Qe2 Qh3 Rh1 Ra7 Rg1 Rh4 Rh1 Rab1 c8Q+ Kf7 e8R Bd6 Rg1 Ne7 Qc6 Nc8 g8N Bh7 Rh1 Qg6 Rg1 Qce4 Qc1 Re7 N8h6+ Ke6 Qf4 Be5 Qff3 Bh2 Qh1 Bf4 Nc6 Kd7 b8Q Re6 Qa8 Bb8 Ncb4 Rfc1 Re1 f1R Rd1 Rcc7 Rc1 Rab7 Bc4 Ra7+ Na6 Rcb7 Nge3 Rhf4 Neg4 R1f3 Rc3 Rbf1 Rc1 Reb6 Ne7 Rd6 Bf7 Re6 Nd5 Qed3 Rb3 Bd6 Rb2 Ne4 Bg8 Rf5 Qe1 Qf7 Rc5 R3f4 Qb1 Ne7 Qe1 Qfg7 Rc3 Rf7 Qd2 Nf6 Rec8 Qdf3 Rc1 Bc2 Qe3 Qg6 Qe2 Qfe4 Rb8 Rf8 Bf7 Rh8 Rg8 Be5 Qf8 Bb8 Qg7 Nc8 Re8 Rf8 Qh8 Nh5 Qg8 Nf6 Rd8+
b5qn/r1nrNk2/n1Qr4/1nQN1K2/1nQ4b/R2R4/Nb2B1N1/2BrRb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Rh6 b7 Ra7 c7 Na6 b8Q Bb7 c8N Ba8 b6 Kf7 e8R Rd6 b7 Be7 Na3 Nh6 g8N Bh4 Be2 f1B Be3 f2 Rc1 a1B Rb1 Bb2 Re4 Rd7 Nge7 Qg8 Qc1 Rd6 Kd2 d3 Qbc7 d4 Nf3 Rd7 Rg1 h1R b8Q h2 Rg3 Rg1 Nb5 h1N Rh3 Rg6 Q7c5 Rf6 Nc3 Rfd6 Kd1 d2 Kc2 d1N Na2 Nc3 Kd3 Nd5 Ra1 Ndc7 Qb7 Ng3 Bg5 Ngf5 Nb6 Ne3 Rg3 Nc2 Qbc6 Nb5 Re3 Ncb4+ Ke4 d3 Nbd5 d2 Ra3 d1N Q1c3 Nbc7 Q3c4 Nc3+ Kf4 N3b5 Re1 Ke8 Ke4 Nf7 Kf5 Nh8 Bd2 Kf7 Bc1 Bg2 Rh3 f1R Rg3 Rh1 Rd3 Bf1 Ra3 Bhf6 Nh4 Bg5 Ng2 Bh4 Bf4 Rh3 Rgc3 Rd3 Bc1 Rd1 Rd3
R5Rb/b3B1Qr/3n2bN/4B1Kb/BB1n1N2/3bk1b1/nbq1QbR1/1Nr5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Ke6 h4 Kf5 b4 d5 c4 a5 c5 g5 c6 e5 c7 g3 h5 a4 h6 d3+ Ke3 d4+ Kd2 g2 h7 e3+ Ke1 Ke4 b6 e2 Kd2 e1N b5 a3 f5 g4 f6 a2 f7 g3 b7 Ba3 f8B Na6 b8N Ne7 b6 Nb4 b7 Bf5 c8R Qc7 Qh5 Nf3+ Kd1 d2 Ke2 Bb2 Qe8 Qc2 Rh3 Bg6 Rc5 Nf5 Nd7 Nd6 Rc7 Rc8 b8B Kf4 Qd8 e4 Rh6 e3 Ne5 Ke4 Nh3 g1B Rc6 g2 Be7 Bf2 Qe8 g1B Nf4 Rc7 Rh2 Bg3 Bh3 d1B+ Kf1 d3 Nf7 e2+ Kg2 e1B+ Bd2 Rc8 Nh6 Be2 Bd7 Ba7 Kh3 Nd4 Rg2 Bef2 Bc3 Bf1 Kg4 d2 Kg5 d1B Rc7 Bg4 Ba4 B4h5 Rd7 Ba6 Rd8 Bd3 Qb5 Ke3 Rg8 Nb7 Be5 Nd6 Be1 Rc7 Ra8 Rhc8 h8Q Rd7 Qg7 Rb7 Nd2 Rc4 Rd1 a1B Nb1 Na2 Bb4 Rc8 Rh1 Rbc7 Rhg1 Rh8 Na3 Rh7 Nb1 Nc6 Bbc3 Bf7 Qh8 Be4 Rd1 Qc1 Bb4 Bh2 B5f6 Bc3 Rdg1 Bab2 Rg4 Bc2 R1g2 Bhg3 Qf1 Bd3 Qf8 Be8 Bh8 Bg7 Qf7 Nd4 Qg6 Bf8 Be5 Bg7 Qf7 Bh8 Qd1 Rg7+ Kf6 Rh7+ Rg7 Qd2 Kg5 Rc1 Rg8 Qc2 Qg7 Beg6 Qe2+
5bq1/qQb2R1b/2n2K1b/3rB2r/n1N1QR1n/1NR4B/2Q4k/1qB1qBn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 c5 a5 h5 g3+ Kf3 g4+ Kg2 a4 b5 d3 b7 d4 h6 d2 c6 a3 b6 a2 h7 d3 c7 Ne7 Ba3 Ng6 Qc1 d1N Be7 d2 Bc4 f3+ Kf1 Kf4 e5 f2 Ke2 g2 e6 Kg3 Bf6 f4 e7 Ra5 e8Q Nh4 Qc2 Bf5 c8B Rd5 Bg5 Nb2 Qee4 f3+ Ke3 f1Q Na3 d1Q Rc1 f2 Nf3 g1B Nd2 a1B Nb3 Nc6 b8R Bh2 b7 Qg1 Bf1 Na4 Nc4 Bag7 Ra8 Bh6 b8Q+ Qc7 Qb7 Qb8 Ra7 Qe1+ Qe2 Qg2 Rc3 Kh3 Rg1 Bc7 Bd7 Qb1 Q2c2 g3 Be6 Kh2 Bd7 Rg8 h8B Bh7 Be5 Rh8 Kf4 Qe1 Bh3 Qb1 Bd3 f1Q+ Kg4 Qfe1 Bc1 Qgf2 Rf1 Qa8 Be2 Qd4 Rf4 g2 Bf1 Qe8 Ra8 Qa7 Rd8 Qf7 Rd7 Qg8+ Kh5 Nf5 Rf7 Nh4 Qcd3 g1N Qd1 Bhg7 Kg5 Bh6+ Kf6 Bg5+ Ke6 Bg6 Nc5 Rh5 Nb3 Bgh6 Kf6 Bh7 Qdc2+
1qbr3b/1N1b3n/K3N3/Qn3nkN/2B2q1N/3bQ1n1/RrrQ1r2/B1RR4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 d5+ Kd3 h5 g4 a5 c4 h3 b4 h4 e4 f3 b6 h2 b7 h3 b5 f2 b6 a4 c5 a3 c6 a2 c7 Nc6 b8Q Na7 b7 Nb5 Qa7 Rb8 Qe1 Bg7 Ba3 Kg5 e5 f5 e6 f4 e7 f3 e8N Nf6 Nd6 Rf8 Qc5 Bh8 Qb6 Nh7 Bb2 Rf7 Be2 f1B Qba5 f2 Nc3 Rf8 Rc1 a1R Na4 Ra2 Ba1 Rc2 Nc5 Bd7 c8R Qc7 Re8 Rd8 Qec3 Qb8 Re3 Rb2 Qd2 Rc8 Na4 Rcc2 Nf3+ Kh6 Nb6 Na7 Qdb4 Bc8 Rg1 h1B Nbc4 h2 Rg2 Rb1 Qac5 Qc7 b8Q Ra2 Qa8 Qb8 Nb2 Rd8 Kd2 d3 Nb7 d4 Nh4 Nb5 Re7 Rf8 Rd7 Rf3 g5+ Kh5 Kd1 d2 Kc2 d1N Bc4 d3+ Kb3 Ne3 g6+ Nf5 g7 d2+ Qe3 d1R g8N Be2 Qbc3 f1Q Kb4 Rf4 Rf2 Bc6 Nf6+ Kg5 Nh5 h1N Qa4 Rd4 Ka5 Nhg3 Nd3 Rb3 Ndc5 Rdd2 Rc7 Rd8 Rd7 Rb1 Rd6 B6d7 Rdd1 Bd3 Ka6 Rb3 Qce1 Rc3 Rb2 Rc2 Qaa5 Qf2 Q1d2 Qf3 Rb4 Rab2 Ra4 Qf1 Ra2 Qf3 Qee1 Qe3 Qee2 Rf2 Qee1 Qef4 Qe5 Na7 Qee3 Nb5 Ne6+
k5b1/4r1Q1/b4r2/Nn3Nb1/1R3Bb1/RqQ1nN1q/n3Bn2/QqqBKN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 b4 f5 c4 a5 e4 h5 g4 d5 c5 Kd7 c6+ Kc7 g5 h3 e5 d3 g6 h2 e6 h4 e7 f3 e8Q h3 g7 a4 Bb2 f4 Qe3 d2+ Kf2 a3 Qe4 d4 Qa4 d1B Qd3 a2 Qf5 d3 Qf7+ Be7 Bd4 d2 Be3 Qd5 Na3 Ra6 Nc4 Rh7 Qf8 Bg4 Be2 Nh6 g8Q Nf7 Na3 Bb3 Qgg7 d1Q Nb1 Qc1 Qfh8 Bg5 Nd2 Bc4 Qc3 Nd6 Nf1 Re7 Qhg7 Qf7 Rb1 a1Q b6+ Kc8 c7 Kb7 c8B+ Ka8 b5 Nc6 Qd1 Nb4 Ke1 Na2 Rb4 Qab1 Bf5 Qd5 Bc2 Qd3 Bd2 Bg8 Ba4 Qb3 Be3 Qdb1 b7+ Kb8 Bd2 Ka7 b8N Ka8 Be3 Rc6 b6 Nb5 Bd2 Rf6 Nc6 Bf7 Ng3 Bg8 Nd4 f2+ Kf1 Rg6 Ngf3 Rf6 Rg1 h1N Ndf5 h2 b7+ Ka7 b8N Ka8 Kg2 f1N Nc6 Nf2 Na5 Rh6 Be3 Rf6 Rh1 Nd2 Rg1 Nc4 Kf1 h1Q Ke1 Qh3 Bd2 Ne3 Nf1 Rh6 Rg3 Rf6 Ne5 Nd5 Rd3 f3 Bf4 Ne3 Qd4 Qf7 Ra3 Qfb3 Qc3 Qe6 Qa1 Nh1 Bc2 Qeb3 N1g3 Qcb2 Qc1 f2+ Kd2 Qc4 Nf3 Qbb3 Bcd1 Qc8 Qcb2 Qc7 Bd3 Qcc1+ Ke2 f1B+ Ke1 Nd6 Qc3 Nf2 Bb5 Be2 Nf1 Bec4 Bd7 Ba6 Be6 Nb5 Bc4 Bd5 Bd3 Bg8 Be2
2Bn3R/qBR3K1/NQ1n2nQ/1N1r3q/1RbB3b/3q1Qb1/2b1rp1Q/4k2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 a2 Be2 f2 Bf1 h2 Qd2 h3 Qe1 f3 Bb2 Bf5 Qe3 Rh5 Bg2 f1B Qh6 d2 Na3+ Kd3 c4 d1Q c5 f2 c6 Qa4 c7 Be7 c8B Qa7 Ne2 Bh4 Nf4+ Kd2 Nb5 d3 Bd4 Ne7 Rc1 a1B Rc7 Ke1 g8Q d2 Qgg6 d1N Ne6 Nb2 Nc5 Rg5 Kf6 Nc4 e5 Bc2 e6 Nd6 Qgh7 Ng6+ e7 Nc6 b8R Rd5+ Kg7 Qd7 b7 Nd8 Be4 Qf5 Bf3 Qd3 Na6 Bb2 Be4 Bc1 e8Q Bf4 Qf7 Bfg3 Rg1 h1Q Qf3 h2 Qh8 Bf4 Rg4 Bfg3 Rf4 Qg2 Q8h7 h1B Rf8 Qh3 Rh8 Nf8 Q7g6 Qf5 Qe6 Qh5 Qh3 Be2 Qh2 Ng6 Rc5 Qc4 Qfg2 Bb1 Nb4 Qa4 Nc7 Re5 Qf3 Ra5 Bc6 Qa6 Rc3 Qa7 Nba6 Qd1 Rc4 Rac5 Rb4 Bc4 Nb5 Bc2 Be4 Qb6 Ra8 Qd2 b8Q Qd3 Ra7 Re8 Ba8 Rd5 Rc7 Qa7 Qb6 Re2 Bab7
1Q6/1q2b2R/1BR2r1Q/Q1r3q1/1KNbqbn1/3R4/1pbrRB2/nBN1b1k1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 e4 f5 h4 c5 a4 g5 h5 b5 a5 f3 h6 c4 h7 f2 a6 c3+ Kc2 f4 Kb3 g3 a7 c2 Ra2 g2 Nh3 g1B Rh2 g4 Rb2 g3 Na3 g2 Qd2 f3 Ra2 Nc6 Bc4 f1Q Nf2 Qe1 Qd1 Be7 Bd3 Bf5 Ng4 f2 Ne3 f1R Qd2 Rc8 a8R Nf6 Ra6 Bf2 Nd1 g1B Nc3 Ng4 Ne2 Bfh4 Bb2 c1B Bb1 Bhf2 Qc3 Bf4 Nc1 Qa5 Rh5 Rhd8 h8Q Qe3 Rh4 Be1 Rh7 Qc7 Ba1 Qb7 Re2 Rf2 Qg7 Rf8 Qg5 Rf6 Qh6 Qg3 Bb2 Qh4 Qd2 Qg5 Bc3 Rg2 Qa2 Rf2 Bd2 Rh2 Be3 Rg2 Bf2 Rh2 Kc2 b3+ Kb2 b4 e5+ Kd7 e6+ Kd6 Rb6 Bc2 Qa1 Rh3 Ra6 Rd3 Qa2 Rd2 Nc4+ Kc7 Qa4 Na5 Qa1 Qb6 d6+ Kc6 d7 Kd5 d8B Qb7 Bb6 Rc5 Bg3 Bge3 Bf2 Ke4 d5 Kf3 d6 Kg2 d7 Qe4 d8R Qb7 Bg3+ Kg1 Rd3 Bd4+ Rc3 Bf8 e7 Qe4 e8Q Be7 Qa3 Qb7 Qb8 Qe4 Ka1 b2+ Ka2 Nb3 Qa5 Na1 Rd3 b3+ Ka3 Qb7 Ba2 b1Q Kb4 Qb2 Bb1 Qa2 Bh4 b2 Ne3 Qad5 Nc4 Qe4 Bf2+ Kg2 Ra7 Qa8 Rd7 Qab7 Rc7 Kf1 Rc6 Kg2 Bh4+ Kg1 Bf2+
K2Qb1rR/bn2N1q1/3B4/Q3B3/4rq2/n1p1Q3/2bq1NR1/kBNqqQ1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d5 h5 e3 f5+ Kd4 c5+ Ke5 h3 e4 f3 b3 c3 b6 a4 b7 a3 d6 c4 Kd5 f2 e5 c2 d7 f4 e6 a2 g5 h4 e7 f3 e8N h2 g6 h3 g7 Ra4 Na3 Kc3 b4 Nh6 g8Q Bc5 b5 Nc6 b8B Ba7 b6 Nf5 b7 Nd6 Qg3 Nb5 Bd6 Na5 b8Q Nb7 Kc6 Rg8 Bd3 f1B Qa8 f2 Bcf4 Kb2 Nb1 c1Q Ne2 Qd2 Qe3 Na3 Bfe5+ c3 Rg1 h1Q+ Rg2 h2 Nc7 Qg1 Nc1 h1R Nd5 Re4 Ne7 Qe1 Bc2 Bd3 Nd2 f1Q Bb1 Qf4 Qdf3 Bc2 Qf1 Bb8 Qa5 Ba7 Rh2 Qgg5 Rh8 Qdf8 d8Q Bd7+ Kc7 Be8 Kc8 Qfg7 Kc7 Bb6+ Kb8 Ba7+ Ka8 Qg2 Nf3 Qgh2 Ng5 Qhd2 Nh3 Bca4 Bd3 Bc2 Nf2 Qed1 Ne2 Q1e1 Rd1 a1Q Nc1 Qee2 Re1 Qed1 Re2 Kb1 Nh3 Kb2 Rg2 Qb1 Nf2 Ka1 Bc4 Q1e1 Ba2 Qb3 Bb1 Qbd5 Qh3 Qdd1 Qg3 Q5d2 Qe3
qr1BQb2/1n3B1b/BQ4bk/4nr1R/2b3Q1/1p2BR1K/Nq4R1/1Nq1b2n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 d4 f5 e4 Kf7 g4 Kg7 Kg2 h5 a4 c5 d6 h3+ Kh2 h4 d5 f3 a5 f2 g5 b3 g6 b4 a6 b2 a7 b3 e5 f4 e6 f3 d7 c4 d6 c3 e7 c2 e8B Na6 Qd2 Qf6 d8Q Rb8 a8Q Nh6 d7 Nc5 Qd6 Nf7 Q6b6 Rh5 Bf4 c1B Bb5 f1Q Ba4 f2 Qg2 Rf5 Bb5 Bd2 Qg5 Qc1 Ba6 f1B Qg4 Be1 Be3 Nb7 Ne2 Ne5 Nec3 Be2 Rf1 Bc4 Rf4 Kh6 Bf7 Qg7 Ra2 Qh8 Na3 b1B Qe8 Bbd3 d8B Bd7 Qee6 Be8 Rg2 Qf6 g7 Be4 Bg8 Bg6 Bf7 Bc2 g8R Qg7 Kh1 h2 Na2 Be4 Qe8 Bed3 Rd2 Bc2 Kg2 h1N Nb1 h3+ Kh2 Qf6 Re2 Bh7 Rg5 Bg6 Kg1 h2+ Kg2 Bh7 Nac3 Qd6 Na3 Rf6 Nab1 Qdd2 Rff2 Bcg6 Bb5 Rf5 Rf1 Qa2 Rf3 Qa8 Na2 Ng3 Qa6 Qb2 Kh3 h1Q+ Rh2 Bd2 Qb6 Qhc1 Rg2 Be1 Ba6 Nh1 Rh5+
1B1b4/k1Q1N2b/1Rr2n2/1B2qR2/KQ1r3r/1p3N2/1Rqr4/BB1rnQnb b - - 0 1 illegal: No possible last move, all moves rejected
1nr1r2r/Q1N5/5qRB/4Q1RB/1p1n4/4K1b1/1qbRn2N/qQnN1knR b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b3 g4 Kd7 d4 Kd6 a4 b5 e4 c5 a5 f5 g5 h5 g6 c4 a6 b2 a7 h3 g7 h2 Nc3 b1Q Na4 f3 Nh3 h4 Nf4 c3 Qd2 c2 Qd3 h3 Qb3 Qf6 Ne6 f4 Rg1 h1N+ Ke1 h2 Kd2 f2 Bc4 f1R Ng5 b4 Nf3 Ne7 g8R Na6 Nc3 Nf5 Be2 Nhg3 Rg6 h1Q Nh2 Re1 Bh5 f3 Rg2 Rb8 a8N f2 Nc7 f1N+ Kd3 Re2 Bh6 Nd2 Rg1 Nf3 e5+ Kd7 e6+ Kd6 e7 Ra8 Qc4 Qb2 e8Q Rb8 Qa4 Re8 Qca2 Bb7 Rg2 Rbc8 Q4a3 Nb8 Qa7 Bc6 Rd1 Ba4 Rgd2 Qg2 Rh1 Qg1 Rg2 Qgb1 Nd1 Q1a1 Qb1 Ng1 Kd2 Ne4+ Kd3 Nc3 R2g5 c1N+ Kc4 Kd7 d6 Kc6 d7 Bc2 d8Q Bd6 Qe7 Bg3 Qe2 Kd6 Qe3 Kc6 d5+ Kd6 Qec5+ Ke5 d6+ Ke4 d7 Kf4 d8R N3e2 Rd2 Nfd4 Nc3 Ke3 Qe5+ Kf2 Nd1+ Kg2 Kd5 Ba4 Ke4 Bb3 Ng4 Kf1 Ke3 Bc2 Nh2+
1KB2Q1b/5q1Q/4nr1Q/1nBnp1k1/NN2BRn1/1r5q/1qbR2Q1/n2r3R b - - 0 1 illegal: No possible last move
8/2n2NQq/Q1KN3Q/p2Bb2r/nBN3BN/br2RR2/4n1qk/r1bb2b1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 Kh4 b6 e5 f5 a5 b7 d5 b5 g5 f6 d3+ Ke3 d4+ Kd2 g3 c5 g4 c6 g2 h3 Kg3 b6 Nd7 b8Q Ba3 b7 Qe7 c7 Nc5 f7 Rh5 f8Q Na4 h4 Qh7 Qg7 Ne7 Qa7 Nd5 Qa6 Rb8 Nf3 g1Q Nc3 Qg2+ Be2 Bd7 c8B Nc7 Rf1 Bf5 Be6 e3+ Ke1 e4 Nb5 Kh3 Qd2 g3 Bd5 Bg4 Bd1 e2 Qdh6 Rf5 Be3 Rh5 Bd2 Bc1 Nd6 Ba3 Ne5 Kh2 Bb4 Bf3 Kd2 Bg4 Rb1 Bf3 Rb2 e1B+ Kc1 e3 Nef7 Be2 Rf3 Bd2+ Kb1 Bc3 Ka2 d2 Kb3 d3 Kc4 Be5 Rb3 Bc1 Rf6 Bg4 Rf3 e2 Ra3 e1B Be2 Rf5 h5 d1N Rb3 d2 Rbe3 Ndc3 Bd1 Ra8 b8N Ne2 Nd7 Rb8 Nb6 Bf2 Qf4 Be1 h6 Rh5 Qfg5 Nac3 Kc5 Na4+ Kc6 Bf2 Rb3 Bc5 Rbe3 Rb7 Nbc4 Rb5 Bc3 B5a3 Q5f6 Rb3 Bb4 Qh1 Qe6 g2 Qef6 g1B Qfg5 Qc2 h7 Qg2 h8N Qf5 Q5h6 Qh7 Bc2 d1R Ng6 Bcb2 Bd3 Ra1 Bf5 Bc1 Bd7 Bf5 Bc8 Bc2 Bg4 Bd1 Nh4
RNnbb1N1/r2qr1N1/2B1pB2/5Q1R/4R2r/1q1q2r1/1Q1nQb2/2K2Qrk b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 a5 g5 a4 c3 a3 g6 h3 g7 a2 b6 d3 f6 e3+ Ke1 Ke4 c4 d5 f7 h2 b7 d2+ Ke2 h4 c5 e6 c6 h3 b5 d4 b6 Ra7 c7 Na6 b8Q Bd7 c8N Be7 f8Q Rh7 b7 Be8 Qf6 Qd7 Na3 Nc5 Bb2 Bd8 Nf3 Nb3 Nc2 Ne7 g8Q Rg7 Qgf7 Rg3 Rb1 a1R Nb4 R1a6 Bg2 d3+ Kf1 Ra4 Nc6 e2+ Kf2 e1B+ Kf1 R4a6 Qf5+ Ke3 Bf6 Bf2 Nh4 Ra4 Qdh5 Rag4 Be4 Rg7 Qbe5 Rh7 b8R Rhg7 Qb2 Rh7 Nb6 Nc8 Ra8 Rhg7 Ne7 Rh7 Rg1 h1R Bc6 h2 Ng8 Rhg7 Qf8 Re7 Ra1 Bg6 Ra5 Be8 Qh3 Kf4 Rd5 Ke4 Qe2+ Kf4 Rh5 d1Q+ Qe1 d2 Nf5 Qb1 Ng7 d1Q Qf7 Q1d5 Ke2 Nd2 Qhf1 Qbd3+ Kd1 Kf3 Kc1 Qb3 Rg2 Rg1 Qee5 h1R Qe2+ Kf4 Qg6 Rh4 Qh7 Qdb5 Rh2 Qdd3 Nd7 Q5d5 Nb8 Qd7 Qe3+ Kg4 Rg2 Kh3 Qe2 Rg5 Rg4+ Kh2 Rd4 R5g3 Re4 Kh1 Qf5
2R1Q1n1/1r1bN1nR/Qqp1R2r/2kq2b1/1N1nbb2/1RQ1b3/3q3B/K5BB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Kd6 Kd2 h5 Kc2 a5 Kb2 f5 e4 h3 g4 a4 d5 h2 b6 f3 g5 h4 b7 h3 g6 f2 g7 f4 b5 f3 e5+ Kc5 e6 Rh6 d6 Bd7 e7 Nc6 e8Q Rb8 b6 Nd4 Be3 c6 Qc1 Be7 Nc3 Bg5 Bg2 f1N Na2 f2 Qc3 Ng3 Ne2 f1Q Nf4 Nf5 Nb4 Qd3 Rae1 a3+ Ka1 a2 Nfd5 Qd2 Bg1 Be3 Ne7 Bf4 Qb3 c3 Re6 c2 Qa3 c1B Qa6 Qd3 Bd5 Bce3 Bf3 Qd2 Be4 Rc8 b8R Rc7 b7 Bg5 Rc8 Bgf4 b8B Rb7 Bf3 Qb6 Bc7 Nf6 g8R Ng7 Rh8 Ng8 Rh7 Bg5 Bf2 Bgf4 Rb1 h1B Rb3 h2 Bg1 Bg2 Bb8 h1Q Bd5 Be4 Bc7 Bb1 Bb8 Qh5 Bh1 Be4 Bc7 Qd5 Bb8 Nf6 Qh8 Ng8 Bc7 Be8 d7 Bg5 d8Q Bd7 Bch2 Bgf4 Nc2 Bg5 Qe8 Bef4 Kb2 a1B+ Ka2 Bb2 Nb4 Bc1+ Ka1 Qe2 Qa8 Bce3 Qa4 Qd2 Qa6 Ngf5 Qf6 Ng7 Qe5 Ne2 Qb2 Nd4 Qc3+
4QQrr/1n2R1b1/1pn1nN1k/Bn6/1r1qR1K1/2q5/2bR1qB1/R1QN2Bn b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 c5 Kf3 h5 a4 f5 g4 Kf7 d4 Kg6 e4 b3 e5 b2 e6 h3 a5 b6 e7 c4 e8R h2 g5 c3 d6 h4 a6 c2 d7 h3 d5 Bg7 a7 Na6 d6 Nc5 Nc3 b1N Qd3 Ne7 Nb5 Nc6 Qc4 Na3 Bd2 c1Q Nc7 Nb5 Ba5 Nb7 Bg2 Qc3+ Re3 Kh5 g6 Kh6 Ne8 Qdf6 d8R Qfd4 d7 Rb8 Kf2 f3 Kg3 f4+ Kg4 f2 a8Q f1R Ne2 f3+ Re4 f2 Nf6 Rb1 Re1 h1N Qc5 f1N Qa3 Qf2 Qc1+ Nd2 Re7 h2 Re4 Qa3 Nc3 Rb4 Nd1 Qc3 Re3 Nf3 Re2+ Ng5 Re8 Ng3 Re7 h1Q Rd2 Ne6 d8B Qhg1 Bc7 Nh1 Bh2 Qge1 Bg1 Qfd4 Qa6 Bd7 Qa8 Rbg8 Qe8 Qef2 Nh5 Bf6 g7 Be5 Qf8 Be8 Nf6 Bg6 Rf4 Bd3 Re4 Bc2 Qa8 Rc8 g8Q Rd8 Qe8 Rb8 Nd7 Bg7 Nf6 Rd8 Qd7 Rdg8 Qf8 Bb3 Qdd8 Bc2 Qde8
RK2Nq2/2N5/pR1qB1qq/1n2Q1br/Q4B1k/3b4/Bn4rN/q1b2nQB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Kf6 e4 Kg5 c4 f5 e5 d5 h3 g3+ Kf3 d3 c5 a6 c6 g2 e6 d4 e7 d2 e8B d3 b6 Rh5 b5 Ne7 b7 Nd5 b6 Ba3 c7 Nb4 Bf7 Qf8 Qa4 N8c6 b8N Na7 b7 Kh4 Ba2 g5 Nd7 Nb5 b8Q Qh6 Nf6 d1Q+ Be2 d2 Qa7 Nd3 Ne8 Qc2 Nc3 d1Q Nd5 Nb2 Rb1 Qcc6 Qc5 Qcg6 Qe3 Be6 c8B Qd4 Ndc7 Qd6 Bd3 Bc4 Be4 Bd3 Bce6 Rd8 Bc6 Rd7 Bd2 Rg7 Qa7 Nc4 Ba8 Bc1 Rb3 Nb2 Qc5 Na3 Rb6 g4+ Kf2 Rg5 Bec4 Qhh5 Ne2 Rh7 Re1 f3 Ke3 g3 Nd4 f2 Nf6 g1Q Bh1 g2 Nf3+ Kg3 h4 Nb5 Nh2 Kh3 Re2 f1Q+ Rf2 Rg4 Be6 f4+ Kf3 Qhg5 h5 Kh4 h6 Rh8 Be3 Bd2 Qe5 Qa1 Qed4 Qe8 h7 Bc1 Bd2 Qf1 Qc5 g1B Be3 Bc4 Ke4 Rg2 Qd4 f3 Qdd1 Rg8 h8Q+ Qh6 Qd4 R8g5 Qg8 Rh5 Qe5 Rg7 Rg2 f2 Rg6 Qg5 Rh6 Rg6 Rh8 Qh6 Qg7 Qf7 Ra8 Be2 Nfe8 Rg3 Qed4 Rg2 Qge5 Qfg6+ Qf5 Qdf4+ Kd5 Bd3 Qc5 Qb4 Kc6 Qd4 Kb7 Qdf4 Ng4 Qd6 Qfe5 Bh2 Kc8 Bf4 Kb8 Bg5 Qcd4 Qe2 Bd2 f1N Qg1 Qf3 Be3 Qff7 Bf4 Qff8 Nh2
2rRBNNK/3n2Qp/r1q1r2q/B3N3/k4RBn/3b4/r2n1bN1/1qR2Q1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 a5 c4 d5 e4 Kd7 g4 a4 b4 h3 c5 a3 c6+ Kd6 g5 a2 b6 f3 c7 Kc6 e5 Kb5 e6 f4 b7 h2 g6 f2 e7 f3 e8B+ Qd7 g7 Nh6 g8N Qc6 Bh3 f1N Ne2 f2 Nf4 Nd7 b8N Ra6 Bd2 Nf5 Ng2 Nh4 Bg4 Bc5 Be1 Nd2 Rf1 Bb7 c8R h1Q Rd8 Ba8 Qc1 Ka4 Na3 Bb7 Rb1 a1R b5 Ra2 b6 Bc8 b7 Qh6 Rg1 f1R Nc4 Rff6 Rf1 Rfe6 Rf4 Bb6 Qb2 Ba7 Rc1 Bc5 Kc2 d3+ Kc3 Bf2 Qa1 Ndf3 Ne5+ d4+ Kc4 d2 Kd5 d1R Ba5 Rg1 Ke4 d3 Qb1 d2 Qb5+ Ka3 Qf1 Kb3 Kd5 d1Q+ Ke4 Nd2+ Kd5 Nc5 Nbd7 Ka3 Nf8 Nd7 b8Q Qb3+ Nc4+ Ka4 Qb7 Qb1 Qa7 Qh3 Qd4 Rh1 Qg7 Qhb3 Bc7 Q3c2 Ba5 Re3 Kd4 Bb7 Ne5 Be4 Rf6 Bd3 Kd5 Ra7 Ke6 Ra6+ Kf7 Qc6 Rf4+ Kb5 Nf6 Ra1 Neg6 Qc3 Rb8+ Rb6 Ne6 Qc6 Ra8 Nb8 Bd7 Rd8 Be8 Nd7 Kg8 Ra6 Kh8 Ra2 Nef8 Re6 Ne5 Rb8 Ng8 Rd8 Rf3 Ka4 Rb8 Rc8 Ra8 Rc7 Rd8 Rc8 Rf4+
5R2/3Kp2n/B1n2r2/Qb3Q1q/R2BRb2/r1b1N1rB/1r2R2q/qrk3QN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 h5 c5 a4 c6 h3 f5 Kg5 b6 Kf4 f6 d3 Kc3+ d2 Kd4 h2 Kc5 Ke3 b5 h4 g5 a3 g6 h3 f7 a2 c7 d4 b7 d3 g7 Rh6 b6 Qe8 Nf3 Bd7 c8B Rf6 Nd4 Nc6 Qc2 Ra3 Bb2 d1R b8R d2 Bfa6 Rg1 b7 d1R Nd2 Rb1 Ne2 Rg3 Re1 h1Q Kb5 h2 Nf1+ Kf2 Qc3 e3 Qa5 Qg2 Kc5 h1R Bd4 Qh2 Ra8 Rb6 b8R Rb2 Rb4 Kf3 Rc4 Ke4 Rb8 Kd3 Ra4+ Kc2 Rad1 Rg4 Neg3 a1Q Rb1 Rg1 Nh1 e2 Rbb4 R4g3 Ne3+ Kd2 Kb6 Rgf1 Kc7 Rfg1 Rf1 e1B Rf4 Rf1 Rc1 Rfg1 Rc5 Rf1 Re5 Kc1 Rfe4 Bc3 Rb8 Rfg6 Ra8 Nf6 g8Q Bh6 f8Q Nh7 Qf5 Rf6 Qgg4 Bf4 Rb8 Rgf3 Qg1 Qeh5 Ra8 Be8 Be6 Rg3 Rd8 Bf7 Rf8 Bg8 Bd7 Bc4 Be6 Bb5 Kd7 Rg4 Bc4 Rd1 Bf1 Rg3 Bh3 Rb1 Nf1 Rd2 Re2 Rda2 R5e4 Rab2 Ne3+
k2br2Q/1q2pKRn/r1R2N2/1Nr1r2Q/2QN2r1/2b2R2/2N1b3/Bnq3qB b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 h5 b4 a5 c4 d5 f4 Kd7 g4 Kc7 g5 Kb7 g6 h3 b6 e3 Kf3 h4 f5 e2 Kf4 e1R Kg5 a4 b5 h2 f6 h3 c5 a3 f7 d3 g7 a2 Kg6 d4 Qa4 d2 Qc4 d1Q Bb2 d3 Qc1 d2 Nf3 Ra6 c6+ Ka8 c7 Nf6 g8Q Qd5 Bg2 Bg4 c8R Ne4 Na3 Bh6 f8Q Bf4 Qff7 Nc3 Rg1 h1R Rc5 Q5b3 Rc6 h2 Qfe8 Re3 Ne1 Bc7 Kg7 Qb4 Qh5 Bd8 Kf7 Re5 Qg7 Rg8 Qgh8 Re8 Bd5 Bf3 Rg7 Nd7 Qc2 Nf8 b7+ Ka7 Qd3 Be2 Nec2 Rg1 Qc4 h1Q Rb1 Qh2 Ba1 Rg4 Rb3 Nb1 Bh1 Qc1 Rf3 Qbb2 b8N d1R Nd7 Rdd5 b6+ Ka8 Nf6 Rc5 Rc3 Qhg1 Rf3 Nh7 b7+ Ka7 b8N Qb5 Rc7+ Ka8 Nc6 Qb8 Nb5 Qb7 Bc3 a1B N6d4 Bb2 Rc6 Ba1 Bb4 Bb2 Ba3 Bc3 Bb2 Bf1 Ba1 Bd3 Nf5 Be2 Nfd4
3bN1Qb/1NkRrqr1/b2bRRb1/2B5/4B1K1/BQ2p1b1/N3n1b1/2n2r1B b - - 0 1 illegal: No possible last move
rrQ1K1bQ/nNr1B3/2n4n/5R1B/2p1Q1Rr/3R4/1krB1rr1/qB1Nb3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 d4 h5 e4 a5 g5 f5 g6 a4 g7 f3 b6 f4 b3 c3 d5 h3 b7 f2 d6 a3 d7 a2 Ke6 f3 Kf7 h4 e5 h2 e6 c4 e7 h3 e8B c2 Be3 c1R Nd2 Ka3 b4 Nc6 b8Q Kb2 b5 Bb4 b6 Na7 b7 Qa5 d8B Rc2 Nb3 Be1 Bd3 f1R Nc5 f2 Ne2 Rg1 Bd2 Rg2 Nc3 f1R+ Qf3 Rff2 Rd1 a1N Be7 Nb3 Rf1 h1R Qh2 Qa3 b8Q Qa1 Nb7 Na5 Qff4 Bf5 Qe4 N5c6 Qc8 Rb8 Kf8 Nh6+ g8R Be6+ Bf7 Bd5 Ke8 Rhg1 Qh1 h2 Bh5 Rh7 Rg4 Bg8 Bd8 Rc7 Be7 Re2 Rf8 Ref2 Rf5 Rgf1 Qg1 h1R Qh2 Ra8 Qhe5 Rh4 Qh8 Rc1 Bb1 Rc2 Bf4 Rfh1 Rd3 R1h3 Bd2 Re3 Qf3 Re5 Qe4 Rb5 Nd6 Rbb8 Nb7 Rh3 Bg6 Rh1 Bh5 Rh4 Nd1+
2nb1Nr1/2qQ2k1/B1bQNR1N/B3n1bn/1rp1Q3/1b2b3/B5NK/bb2R3 b - - 0 1 illegal: No possible last move
3K2Q1/1k3qRQ/n4N1q/R1nN1B2/5p2/2qQ1Nr1/brQ1b1Bb/Bn1b3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 f5 c4 a5 b4 h5 c5 h3 e5 h4 g5 a4 g6 f3 b6+ Kb7 b5 a3 g7 a2 e6 f2 e7 h2 e8N h3 Bf4 Bd6 Bg3 Qf6 Qd2 Ra3+ Nc3 Be6 Be5 Qf7 Bg2 f1N Nf6 Na6 Qc2 Nd2 Nf3 Nb1 Rg1 h1Q c6+ Kb8 b7 h2 Nh7 Nf6 g8Q+ Kc7 Qg7 Ne4 Nf6 Rb8 Qh7 Kb6 c7 Nec5+ Ke2 d3+ Ke3 d4+ Kf4 d2 Kg5 d1B c8B d3 Ncd5+ Ka7 Bc3 d2 Bd4 Nc7 b6+ Ka6 Bd7 Be2 Be5 d1B Bc3 Rf8 b8Q Rb3 b7 Rb2 Qd8 Rg8+ Qg7 Bg3 b8Q f4 Qb5+ Ka7 Qbd3 N7a6 Qf8 Kb7 Qe8 Rh8 Qeg8 Rh3 Q7h7 Nd2 Rb1 a1Q Bd4 Qa3 Ra1 Qc3 Ra5 Nb1 Be5 Qe7 Bd4 Bf7 Bf5 Qc7 Nb4 Ba2 Nbd5 Qf7 Nd7 Qe8 Kf6 Qg6+ Ke7 Qf7+ Kd8 Rb3 Ne7 Qd2 Bb2 Qc3 Bf1 Rb5 Ba1 Rb2 Ng5 Qc6 Nd5 h1R Nf3 Bh2 Rg7 Rg3 Bg2 Qh6 N7f6
1r1q1R1n/2qN2K1/1r3nbQ/r1N1RQ2/Nk3p2/2b3B1/4Qr2/bR1BqN1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 a5 e4 h5 c4 f3 g4 f6 Kg6 d5 g5 f2 b6 h3 e5 h2 e6 h4 e7 h3 e8R f5 b7 d3 Ne2 d2 Nec3 d4 Be2 f1R Re5+ Kb4 c5 a4 c6 d3 c7 a3 Na4 Rf2 Rf1 Nd7 b8N Ndf6 Nd7 h1R Ndc5 h2 b3 Bd7 c8Q a2 Bb2 Bd6 Kg7 Qc7 g6 Ne7 Qc1 d1Q Qh6 Qe1 Bd1 Ra5 Nd2 Rd8 Rb1 Be8 Qe6 a1B Bc3+ Ka3 b4 Rb8 b5 Bf7 Bb2+ Kb4 b6 Rg1 b7 h1N Qd5 Rg5 Qg2 Ra6 Qf3 Rb6 Qe2 Be8 Nf3 d2 Nh2 Rfg2 Rf3 Rf2 Nf1 Rh5 Kf8 Rg5 g7 Rh5 g8Q Bg6+ Kg7 Rg5 Ree3 Be5 Qf7 Bc3 Re5 Rh5 Rd3 Rg5 Rd8 f4 Rf8 Nd7 Qf5 Nf6 Bb3 d1Q Bc1 Ra8 b8N Qdd8 Nbd7 Rab8 Bd2 Bf7+ Kh8 Ng6+ Kg7 Rh5 Be3 Nh8 Bd4 Bg6 Be3 Rg2 Bf2 Rgh2 Bg3 Rf2 Qd1 Ra2 Qdc2 Rh2 Qe2 Rf2 Nb2 Ra3 Bd1 Ra5 Nba4+
3k3b/2q4R/r1QRBq2/b4nB1/pQ1n1B1r/n2Q4/bN2q2r/QRNn2K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 a5 c4 d5 e4 a4 h5 g3+ Kg2 d3 b6 f3+ Kh3 g2 Kh2 g4 e5 g3+ Kh3 f2 b7 d4 b5 d2 e6 d3 h6 f4 b6 f3 c5 Bg7 h7 Nc6 b8B Nh6 b7 Ra6 Bf4 Qc7 b8Q Nd4 c6 Kd8 Qb4 Nhf5 Ne2 g1B Nbc3 g2 Rb1 Nc2 Rh2 Na3 Qdb3 d1N e7+ Ke8 Bcd2 Be6 Nc1 Bd5 Bde3 d2 Bb5 f1Q Rh1 Bf2 Kh2 g1N Qc2 Ne2 Qd3 Qa7 Bg5 Ba2 Bef4 Qd7 c7 Ned4 Bc6 Be1 Bb5 Qe2+ Kg1 Qc6 c8R+ Kd7 Rg8 Bf6 Rg6 f2+ Kh2 Bg7 Rd6+ Kc7 e8Q f1R+ Kh3 Rf2 Qe6 Qc5 Bd7 Bf6 Qd5 Kd8 Qc6 Qa5 Rh2 Qc7 Rh1 Qe6 Rh2 Rg2 Rh1 Rg4 Kh2 Rh4+ Kg1 Qe7 Rh2 Bg7 Rh1 Qf6 Rh3 Re8 Rh1 Bh8 Rh2 Re2 Rh3 Nde3 Nd1 Rh2 Nb2 d1Q Qce4 Qe2 Qc6 Bg7 h8Q+ Bf8 Qg8 Nd1 Qgc4 Bg7 Qcc3 Rh6 Rh5 Bh8 Rh3 Rg6 Rh7 Rgh6 Nc4 R6h5 Qa1 R5h4 Nb2 Bc3 Qbc4 Ba5 Q4c5 Nb3 Qb4 Nbd4 Be6+
q3nRbK/1rn2rQ1/pq3b2/R1bn4/Br3B2/2Q1Bk1R/1qN1NN1R/4q3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 d5 e4 f5 b4 g3 c4 g2 c5 d3 b6 d4 h3 d2 c6 d3 b7 f3 h4+ Kg4 b5 g5 h5 f4 h6 Be6 c7 Bc5 c8Q Na6 b8B Rh7 b6 Nf6 b7 Ne8 Qc2 d1Q Ra4 f2 Bc7 d2 b8R f3 Bd6 Qe2 Ra5 d1N Na3 Ne3 Qc3 Rb7 h7 Nac7 h8R a6 R8h3 Qb2 Ne2 g1Q R1h2 Ned5 Be3 Raa7 Bg2 f1R Qd7 f2 Qg7 Rb1 Nc2 f1Q Bh1 Qe1 Bg2 Nef6 Rc8 Qh8 Rf8 Nfe8 Bh1 Bg8 Bg2 Na8 Bf1 Rf7 Ke6 Rad7 Bdf4 Rb7 e5 Be7 Bg2 Bf6 Be4 Qgf2 Bd3 Rb4 Bb5 Qfg1 Ba4 Rbb7 Rh7 Kf3 Kf5 g4 Kg6 g3 e6 g2 e7 Nac7 R7h4 Nd6 e8N Qgf2 Rh7 g1B Kh6 Qb6 Kg6 Rb4 R7h5 Ndb5 Nd6 Ne8 Ne4 Nbc7 R5h4 Qc1 Rh5 Qfe1 Nf2 Qb2 Rg5 Qh3 Rh5 Qg2+ Kh6 Qh1 R5h4 Qg2 R4h3+ Qg3 Qd3 Rb8 Bd6 Nc3 Ng4 Bf2 Qd2 Ke4 Bg5 Bc5 Be3 Qe5 Kg6 Qd5 Bdf4 Qa8 Kh6 N3d5 Qc3 Rb7 Kg6 Re7 Kh6 Bf7 Kh7 Bg8+ Kh8 Rf7 Rh4 Kf3 Nf2 Qec1 Rh7 Qe1 R7h3+
4qqN1/1B2r1p1/Qn1rr1qQ/B4bRQ/1n6/bb3NnB/4NK1Q/R5nk b - - 0 1 illegal: No possible last move
1r3qb1/3N1p2/R1B2Nq1/Qq3nBn/1R2b1K1/1R3nbr/1nQ2k1r/QN4N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 b4 Ke5 e4 h5 g4 a5 c4 d5 c5 h3 b6 h4 b5 h2 c6 a4 g5 a3 g6 a2 b7 h3 g7 d3 b6 Kd4 e5 d2 e6 Nf6 g8R Nh5 e7 Bf5 e8Q Nd7 b8Q Bd6 c7 Bh7 c8N Ne5+ Ke2 Nf3 Qe6 Qf8 Rg3 Bg8 Qb3 d1N b7 Ne3 Ba3 Nf5 Qc7 Rb8 Qh6 Ke4 Qg7 d4 Qd8 d3+ Kf2 d2 Bg2 d1N+ Ke2 Nb2 Qa5 Be5 Qc2+ Kd4 Kf1 Ke3 Nd6 Rh7 Ne8 Bc7 Ne2 Rh8 Rg1 h1B Be7 h2 Bg5 Rh6 Nf6 Rh8 Nd2 Rh7 Rb1 a1Q Qh8 Qa2 Ra1 Qc4 Nb1 Qa6 Ra4 Qe6 Rb4 Be5 Ne8 Qg6 Nf6 Bc3 Qg7 Be1 Rh3 Bg3 Qh8 Ne5 Bc6 Be4 Qg7 Nf3 Kg2 h1R Re1 Rc8 b8N Rh8 Nbd7 Rb8 Rh2 Rh6 Kh3 Rh7 Kg4 Rh6 Rh3 Kf2 Qe5 Rh2 Qa5 Nd2 Qac5+ Kg2 Rb3 f3 Na3 f2 Ne8 f1Q Rb6 Be5 Qb4 Nf4 Ng1 Nbd3 Rb1 Kf2 Ra6 Rh8 Rg3 R8h3 Qa5 Nh5 Rb4 Bc7 Re3 Bg3 Qa1 Nb2 Nb1 Qc4 Reb3 Qb5 Qd1 Nf3 Nef6 Re8 Qc1 Rb8 Qc2+
2Rb2R1/3B1p1r/1Rn2b2/3Nq3/1bbBN1k1/1Q1q4/N1Q2rn1/1qnr1NKB b - - 0 1 illegal: No possible last move
2Bb2N1/1B1p2BR/r2N1Rrb/2K4b/Q4qq1/7r/kq1nQNn1/2b1R1Bn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 g5 h4 a5 e4 f5 b4 f3 c3 g3 h5 a4 b6 g2 h6 d3 b7 d2 h7 f2 b5 a3 b6 g4 Nf3 g1R Kb4 a2 e5+ Kd5+ Kb5 f4 e6 g3 e7 g2 e8Q Nh6 Ba3 Ng4 Be2 f1N Qg6 Qf6 Ng5 f3 Bb4 f2 Nh3 Nge3 Qgc2 Na6 b8R Bb7 Bc5 Nb4 Na3 Ra6 Qa4 Bh6 Rf8 Nd3 Nc4 Ba8 Rb1 a1B b7 Bb2 b8N Bc1 Nc6 Qf4 Qe1 d1Q Nd6 Nd2 Rf6 f1Q Nf2 Qc2 Bg4 Qe2 Rh2 Qef3 Qe2 Q3e4 Bf3 Qa2 Nh3 Nf2 Bd4 Nh1 Nf2 Re8 h8B Qb2+ Qb4 Re5 Bg7 Rh5 Bb6 Rh3 Ne7+ Ke5 Ng8 Kd5 Bc7 Qg4 c4+ Kd4 Qb3 Qef4 c5 Bd5 c6 Bf7 Bd8 Bh5 c7 Qa2 Qf7 Kc3 c8B Qb2+ Kc5 Kc2 Qe7 Kb3 Bfb7 Ka2 Qe8 Re1 Qe5 g1B Bb6 Ng2 Qd1 Re2 Qd4 Re6 Q4a4+ Ra3 Rh3 Bh2 Qf1 Bg3 Qe2 Bh4 Rf8 Bd8 Ba7 Rg6 Rf6 Qb3 Rh2 Bb2 Re1 Bc1 Bb6 Qb2 Kd5 Bg5 Ba7 Qa1 Nfe4 Qb2 Qad1 Rf3 Bg1 Rb3 Rh4 Rh3 Qc2 Qgf3 Qcd1 Bg4 Rh7 Bh6 Kc5 Bh5 Nf2 Q3g4 Qa4+
1R2B1N1/p1q2r2/2n2Q2/bRrr4/3N1b1k/q2qn3/RQbB1nQ1/K2Nn2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kf6 h4 d5 c4 g5 Kc2 d3+ Kb3 f3 Ka2 f2 b4 g3 h5 g2 c5 d2 c6 g4 b6 Kg5 h6 f5 h7 d4 e5 d3 e6 f4 b5 f3 c7 g3 b7 Bb4 e7 Nc6 b8R Ba5 e8Q Nh6 b6 Rf8 h8N Rf7 b7 Nf5 Kb2 Ne3 Qe4 Bf5 c8Q Qc7 Qc2 d1R Ne2 g1N Bd2 g2 Ra2 Rc1 Qb3 Rc5 Ng3 Rd5 Be2 f1Q Nc3 f2 Nd1 Nf3 Ng6 g1B Ka1 Ne1 Bh5 Qh3 Ne7 f1Q Qf8 Bh2 Qg2 Kh4 Ng8 Qe2 Qb2 Be4 Re8 Rc8 b8N Bf5 Rg1 Be4 Nh1 Bf4 Qfg7 Qef3 Qh8 Qhd7 Re5 Qdd6 Rg5 Qa3 Qhf6 Bh7 Na6 Qh3 Nc5 Bf5 Ne6 Bh7 Bc3 d2 Nd4 Bc2 Rf1 Qf5 Rf2 Qd3 Re2 Ng4 Re8 Nf2 Bb4 Rb8 Rf8 Rbb5 Rb8 Rbc5 Bg6 Rfd7 Be8 Rf7 Ne3 d1N Bc3 Ng4 Bd2 Ndf2 Nd1 Ne3 Qg1 Re5 Qg2 Rc3 Qg7 Rc4 Rg6 Rh5 Rg5 Rc3 Rgb5 Rd5 Qe5 Rcc5 Qf6+
q2n2k1/pNn1rBbn/nR6/3B2Qb/2K1N3/4Q1n1/RN2n3/1qnrQ1BQ b - - 0 1 illegal: No possible last move, all moves rejected
NbBQ3n/N1b3Qb/b1k1nr2/Q2N4/K3N3/Rr2Bbnq/p1nR4/1n2B3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 c4 f5 Kc2 g5 Kb3 d5 e4 Kd7 h4 f3 e5 d3 c5 d4 h5 f4 b6 a4+ Kb4 d2 b7 d3 b3 f2 h6 f3 h7 a3 Kb5 g3 b4 a2 Qc2 d1B Qc4 g2 Ba3 d2 Rh3 g4 Nc3 g3 Nge2 g1N Nd4 g2 Qd5+ Bd6 Bc1 Nc6 b8Q Qh4 Rg3 Qh1 Ne4 Nh3 Bc4 g1B e6+ Ke7 Bb3 Ba6+ Ka4 Bh2 b5 Ra7 b6 f1N b7 f2 Qh5 Nb4 c6 Ng5 c7 Nc2 c8N+ Kd8 e7+ Kd7 e8N Nh6 Bf7 Qg2 Ra3 Rf8 h8B Bf3 Nc7 d1N Na8 Qh3 Ne7 Bdg3 Bb3 Nhf7 Qe5 Rb8 Bf6 Nh8 Be3 Bf4 Bd5 Ne6 Bh4 Bhg3 Qg7 Nc3+ Kb3 Bd6 Rd1 Nb1 Ka4 Rf8 b8Q Rb7 Rd2 Rf6 Qe5 Rb3 Bb7 Bh2 Qbg8 Bb8 Qa5 Bhc7 Nd5+ Nf7 Nec3 Bd3 Ba6 Bh7 Ndb5 Kc6 Bc8 Nh8 Qd8 Ng3 Ne4 f1B Nbd6 Nf5 Be1 Ba6 Nb5 Ng3 Na7+
1K6/1R1Qr1bq/b2N3r/1NR4r/b2NBBpk/b4nbB/RrrQ4/n6R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 a5 b4 d5 c4 g5 c5 f3 Kg3 d3 h5 a4 h6 a3 c6 f2 c7 a2 h7 d2 b6 d4 b7 d3 b5 Qe7 b6 Ra5 Rh2 Nd7 b8R Nh6 b7 Nc5 Qa4 d1B Bd2 Nf5+ Kg2 g3 Bb4 g4 e5+ Kg5 e6 d2 Qa3 Nd4 Rh1 f5 Qc1 f4 Nc3 Ba4 Nb5 d1R Bd2 Nf3 Ne2 Nb3 Ned4 Re1 Qc6 Rb1 Qd7 Rb2 Ra8 Ra7 b8R Ba6 Rc1 a1B c8N Qg7 Be3 Ba3 e7 Rc7 e8B Rcc2 Ncd6 Qf7 Be2 f1R Rb7 Re1 Raa7 Qg7 Bg6 Qf7 Bd2 Qg8 Bf1 Re7 Be4 Qg7 Rg1 Kh4 Rh1+ Nh2 Kg1 g2 Kf2 f3 Ke3 g1B+ Kf4 f2 Bh3 Nf3 Kf5 f1R Bf4 Bh2 Ra8 Rc7 Rc5 Bg3 Raa7 Rc6 Ra8 Rhc8 h8Q+ Qh7+ Kf6 Rc1 Qhd8 Rcc2 Qa5 Rh8 Qd2 Rf7+ Ke6 Re7+ Kd5 Rb6 Nc8 Rh6 Ncd6 Rg8 Kc6 Rg5 Kc7 Rgh5 Kb8 Rb1 Nc6 Bg7 Ncd4 Na1 Raa7 Rbb2 Rcc7 Bb4 Qe1 Bb3 Nc3 Bf1 Ra2 Ba3 Rc5 Ba4 Qd2 Ba6 Ncb5
4b1k1/r2r3r/b4b2/RQQQ1r2/p1R1Q1B1/2Nbn1n1/3KB1NN/B2b1rq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 a5 g4 f5 b4 Kf7 c5 h5 b6 d3 c6 f3 g5 d2+ Kf2 a4 Ke3 f2 b5 h3 b7 h2 e5 d4+ Kd3 h4 b6 f4 c7 h3 Kc2 f3 Qe1 d1R Be2 f1B Bb2 f2 Nf3 Na6 b8Q Rh7 b7 Be7 Nc3 Nc5 Nh4 Ra7 Ng2 Nf6 e6+ Kg8 g6 Nce4 g7 Nd5 Rc1 Bf6 e7 Ng3 e8N Qd7 Qa8 Qg4 b8Q Ba6 c8B Qg5 Rg1 h1B Ba1 h2 Qb5 Rd3 Bcg4 Ne3+ Kb2 Rd1 Qc8 d3 Qcc5 d2 Kb1 Nef5 Kc2 Ne3+ Kd3 Rh5 Nc7 Rh7 Ne6 Rh5 Nd4 Qg6+ Ne4 Rf5 Rc4 Qg5 Nc3 Qg6 Nf4 Bc6 Ng2 h1R Nf3 Rh7 Nh2 Be8 Rh1 Rb1 Rg1 d1B Kd2 Rc1 Bef3 Bd3 Be2 f1R Rh1 R1f4 Rf1 Rd4 Rf4 Rd8 Rfd4 Rdd7 Rd5 Nh1 Qh4 Bd8 Qhe7 Ng3 Qe4 Bf6 Rd6 Bc8 Ra6 Rb1 Ra5 Ba6 Qf3 Qg5 Qe4 B1c2 Rd4 Kf7 Nd5 Be5 Bh3 Rbf1 Rc4 Bd1 Nc3 Qh5 Bhg4 Bd4 Nf3 Qh1 Nh2 Qg1 g8Q+ Kf6 Qgd5 Kg7 Qf3 Bf6 Qfe4 Kh8 Qdd6 Kg8 Qdd5+
bQ2R1KQ/bQ3Nb1/4r1kp/2rn4/5QnN/b4Bb1/rR1B2R1/rrB3q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Bf4 Kf7 Ke2 e5 g4 a5 c4 d5 b4 h3 c5 h2 c6 d3+ Ke3 a4 b6 a3 b5 a2 c7 d2 g5 h6 g6+ Kg7 b7 Kf6 g7 Ba3 b6 Kg6 Qc1 d1R Nd2 Bb4 Bg2 Nd7 b8R Ne7 b7 Re1+ Ne2 Nf6 Rb1 a1B Nc4 Ra2 Nd6 Ba3 Rg1 h1R f3 Bd7 c8Q Bc6 Bg5 Re8 f4 Rh5 Bf3 Rf1 Rb5 Qb6+ Nd4 Bc3 Qd2 Rfa1 Rg2 Qa7 Rb2 Ng4+ Ke2 e3 Kd3 e2 f5+ Kh7 f6 e1B f7 Kg6 f8Q Bg3 Qh8 Qb6 Ra8 Qc5 b8B e4+ Ke2 e3 Kd3 e2 Qc1 Rh1 N4f5 e1B g8Q+ Bg7 Bc7 d4 Ba5 Qa7 Kc4 d3 Rab8 Ba8 Qb7 d2 Rc8 Nc6 Kd5 Ne7+ Ke6 d1R Qcc7 Rdc1 Rb8 Kh5 Kf7 Nd5 Bb4 Re3 Qe8 Re6 Kg8+ Rg6 Qc4 Bef2 Nf7 Re6 Be3 Rc2 Qf4 Rhb1 Bc1 Kg6 Bbd2 Qe3 Qd8 Qe1 Qdc7 Ba7 Re8 Qg1 Qcb8 Rc5 Nh4+
3N4/bb1K3k/p2b2nq/2RN2Q1/r2Q2rr/Br2BBbr/n3Nb1Q/R2N4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Kg6 h4 d5 c4 e5 b4 d3+ Ke3 d4+ Kd2 g3 h5+ Kh7 c5 g5 c6 g4 f5 g2 b6 g3 h6 Ne7 f6 Bb7 c7 Qd6 c8N Na6 b5 Ng6 f7 Nb4 Qh5 Na2 Ne2 g1R Ne7 g2 Nd5 a6 Qg4 Rb8 Nbc3 Qf6 Nd1 Bd6 f8B e3+ Ke1 e4 Rh5 Rh1 Qg5 g1B Bg2 Rh3 Bf3 d2+ Kf1 d3 Kg2 Rh4 Ba3 Rg4+ Kh3 Qf4 Bg7 Bf2 Bd4 Bg3 Ng1 e2 Be3 e1B Ne2 Qf8 Qd8 Bef2 Qg5 Ba8 b7 Bg1 Nb2 d1R b6 Rb1 Nd1 d2 Bd4 Rb3 Be3 Rc8 b8Q Rc4 b7 Ra4 Qc7+ Qg7 b8N Bb7 Nc6 B1f2 Nd8 Bg1 Nf2 d1R Qc5 Rdd4 Nd1 Rdc4 Qd4 B3f2 Bd2 e3 Bdc1 Rg2 Bd2 Rh2+ Kg4 Rh3 Kf5 Rh4 Ke6 Rg4 Nc1 e2 Be3 e1B Ne2 Qf6+ Kd7 Rh4 Qde5 Rcg4 Qh2 Bfg3 Bec1 Ba7 Be3 Kg8 h7+ Kg7 Qf4 Bef2 Rf5 Qg5 Re5 Qh6 Qg5 Rh3 Rf5 Rg8 Re5 Rgh4 h8Q+ Kf8 Re4 Ne7 Qb2 Rg7 Qg4 Kg8 Rc4 Kh7 Rc5 Rg5 Qf5+ Ng6 Qd4 Rgg4 Qg5
1qB2nnn/bN5r/R7/1BQ1bNb1/4Q1r1/3K2Rb/4nQNp/1k1Q1nBr b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kc2 Ke4 g4 h4 g5 e2 g6 e1N+ Kd2 h3 f5 d3 f6 a3 f7 d4 g7 a2 c7 Bc5 f8Q Nd7 b8Q Ng2 b7 Ra4 Be2 Nf4 Bg4 Ng6 Be2 Ba7 Qe8 Ndf8 Qb5 Rh7 Nf3 Nh8 Rf1 h1R Qe8 h2 Bb2 Bh3 c8B Qc7 Qa8 Qb8 Qf7 Rb4 Na3 Rc4 Rb1 a1B Ne1 Rb4 Rf6 Ra4 Kc1 d2+ Kc2 d3+ Kc3 Ke3 Ra6 Rg4 Nb5 e4 Bf1 Nfg6 Kc4 Nf8 Bc3 Bb2 Nd6 Ba1 Ba5 Bf6 Rb3 Bg5 Qb1 d1N Bb6+ Kd2 Ng2 Nc3 Bg1 Ne2 Qf2 Nd7 Qbe1+ Kc2 Qa1 d2 Rg3 Nf8 Qd1+ Kb2 Nf5 e3+ Kd3 Nd4 Nd6 e2 Nf5 e1B Be2 Qf4 b8N Qc7 Nc6 Qb8 Bf1 Ne2 Na5 Ka2 Qc5 Bf2 Qe4 Bd4 Nb7+ Kb2 Qa4 Be5 Qad4+ Kb1 Qf2 Nd4 Be2 d1N Bf1 Ne3 Be2 Ne7 g8Q Nf1 Qgd5 Ng8 Bd1 Be3 Ba4 Bg5 Bb5 Ne2 Qdd4 Ne6 Qa4 Nf8 Qd1+
1qqq2q1/4r2B/N1rRR2B/Nb3q1Q/n2qB1B1/2Q5/rp1bR2Q/1nk4K b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kd6 e4 c5 a4 f5 g4 h5 Kg2 b5 g5 f3+ Kh2 h3 g6 h4 g7 c4 a5 f2 a6 b3 a7 b4 Nf3 f4 Na3 b2 Ne5 b1Q Nf3 c3 Ra2 b3 Ng1 c2 Ne2 f3 Qe1 Nf6 g8R Rh7 Rg7 Ba6 Rb7 Re7 Bh6 c1Q Qc3 Nbd7 Ng3 Nc5 Be2 Na4 Re1 Bb5 Kh1 h2 Rb2 Rc8 a8B Rc6 Rb6 Qa2 Rc2 b2 Bd3 Qc4 Re2 Qg5 Bb7 Qg8 Bc8 Qc5 Ra6 Qa7 Bg4 Qab8 Bb1 Nd7 Rd1 Ne5 Bd3 Nc4 e5+ Kc7 e6 Kd6 Rde1 Nd2 Bh7 Nb1 Be4 Bg7 Rd1 Be5 Rb6 Bf4 Nc4+ Kc7 Ra6 Bd2 d6+ Kb7 d5 Qdc8 Rg1 f1Q d7 f2 d8Q Qd1 d6 f1Q d7 Qf5 Qe8 Kc7 Na5 Kd6 Qh5 Qcd8 Qd3+ Kc5 Rge1 Kb4 Qc2 Ka3 Qc3+ Ka2 Rb6 Qdc8 d8Q Ka1 Qd6 Qcd8 Kg2 h1R Ra6 Rf1 Qf4 Rf3 Kh1 h3 Rb6 h2 Qc7 Rg7 e7 Qc1 e8B Re7 Bg6 Qd1 Qg7 Ra3 Bh7 Ra2 Qc3 Qc2 Ra6 Qcd3 Qf4 Q3d4 Qf2 Rc4 Rd6 Rc6 Bd5 Qdc8 Ne4 Qgd8 Nc5 Qg8 Na6 Qgd8 Kg2 h1Q+ Kg3 Qhe4 Kh2 Qee6 Be4 Qeg8 Kh1 Qde8 Re3 Qed8 R1e2 Na3 Bd5 Kb1 Qf4 Qg5 Ree6 Qgg8 Qb4 Kc2 Qfh2 Nb1 Be4+ Kc1 Qc3+
qb2BR1k/BQ1R3n/4b1q1/1NR5/KB1b1N2/Rrq1n3/Qp1N1rb1/b2b4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 f5 d4 Kf7 Kd2 g5 Kc2 Kg7 Kb3 b5 e4 c5 h4 c4+ Kb2 g3 h5 b3 e5 g4 e6 b4 e7 g2 e8Q g3 a5 f3 a6 f4 d6 f2 a7 f3 d5 Nh6 d7 Bd6 Qe6 Nf5 Bg5 c3+ Kc1 b2+ Kc2 b3+ Kd3 c2 Kc3 Ne3 Bb5 f1B Nd2 b1Q Nh3 g1B Nf4 g2 Ra3 f2 Be7 Rf8 h6+ Kh8 h7 Be2 Rh5 f1B Rg5 Qe8 d8B Nd7 Bb6 Rb8 a8N Nf6 Nc7 c1Q+ Qc2 Qd8 Ba7 Bd1 Qf7 Be6 Be8 Rb5 Rh5 Qa8 Rg5 Rb7 Nb5 Bb8 Kb4 Bf2 d6 g1B d7 Bg2 Qc6 Qg6 d8R Qc3+ Ka4 Rb6 Qb7 Bh2 Nd3 Bhe5 Rd7 Bd4 Nf4 Bg3 Nd5 Bge5 Nf4 Bc4 Bd8 Bc5 Re7 Qcc2 Nc7 Ba1 Nh3 Qc3 Rd7 Bd4 Be7 Rb5 Qfd5 Kg7 h8R Nh7 Rh5 Rf6 Rf8 Rf2 Nf4 b2+ Rb3 Bg4 Ra3 Be6 Re5 Be2 Qa2 Rb3 Nb5 Bd1 Red5 Bg8 Bb4+ Kh8 Rf6 Bf7 Rc5 Be6 Rf8+
q2b1K2/nrBN1N2/n7/2R1nQr1/QRB1rn2/Q2pb1kb/1n1Q1N2/b4R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 c5 a5 h5 g3+ Kf3 g4+ Kg2 a4 b5 d3 b7 d4 h6 d2 c6 a3 b6 a2 h7 d3 c7 Ra4 Nh3 Na6 b8R Ne7 b7 Rg8 h8N Nc6 Qe2 d1N Nc3 Na7 Qd2 Be7 Nf2 Rg5 Nd5 Nb2 Rh5 Rd4 Rb1 a1B Nf6 Bd7 c8Q f3+ Kh1 f4 Bh3 g2+ Kh2 g1N Nf7+ Ke6 e5 Kf5 e6 Re4 Qcc3 Ne2 Qa3 Qc8 Bg2 g3+ Kh3 Bd8 Kh4 Qc6 Bh1 g2 e7 g1B e8Q Bc8 Nd7 Qd5 Nd1 f2 Bg2 f1R Nf2 Re1 Qef8 Rb4 Qe8 Qc6 Bd5 f3+ Bc4 Nf4 Qf8 Rb3 Qfb4 Re4 Qba4 Nd1 Bb2 Rb6 Bd4 Nb2 Rf1 Rb3 Bb6 Qd5 Ng4 Be3 Bc7 Rb4 Nf2 Qc6 Ra8 Rb5 b8Q Rb7 Nf6 Be6 Qc8 Qe8 Nd7 Qg8 Nh3 f2 Rb8 Qh8 Rh1 f1N Nf2 Nh2 Rf1 Rb3 Rb7 Ng4 Rb5+ Ne5 Rc5 Qg8 Rh6 Bd5 Rb6 Be6 Rb4 Ne2+ Kh3 Kf4+ Kh4 Bg4 Bd6 Bh3 Bc7 Rg6+ Kh5 Rg5+ Kh6 Kg3 Nf6 Nf4 Qf5 Qe8 Kh7 Qc6 Nd7 Qa8 Kh6 Neg6 Kg7 Ne5+ Kf8 Bg4 Bd5 Bh3 Rbc4 Rb6 Rb4 Rb7 Bc4
1b1kBN2/6r1/1Q1nrn1K/8/4r1bR/rpQNBbn1/3B1Rqn/2r2BRQ b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 f5 Kf3 h5 e4 b5 d4 c5 a4 c4 g4 c3 a5 h3 d6 h2 g5 c2 d5 b3 e5 h4 e6 b4 a6 b2 e7 h3 a7 b3 g6 Nc6 g7 Rh6 Ne2 Nd4+ Kf2 f3 Ke3 f2 Kf4 Nf6 Kg5 f4 g8R f3 Nbc3 b1R Ne4 Nf5 Be3 c1R Qd4 Rb2 Rg1 h1R Ra4 h2 Nf4 Re2 Nd3 Rh7 Rg6 Rg7 Qc3 Qc7 Ra2 Qc6 Nec5 Rce1 Bd2 Re6 Nd7 R1e4 Rg4 Rg1 Be3 h1B Re2 Nd4 Kh6 Nb5 Rh4 Qb7 Bh3 f1N Rf2 Ng3 Bf1 Rb8 a8Q Qc6 Bh3 Rc1 Bf1 Rb7 Qaa1 Ra7 Qb1 Ra3 Bd2 Ngh5 Rg1 Bg2 N7c5 Ng3 d7+ Kf7 d8B Ke8 Ba5 Nd6 Nd7 Qa8 Bb6 Qc6 Re2 f2 Bbe3 Bf3 Qba1 Kf7 e8B+ Ke7 Qb1 Kd8 Qba1 Be7 Nf8 Qb7 Bh3 f1N Rf2 Nh2 Bf1 R6e5 Qb1 Bcg4 Qba1 Re6 Qb1 Nb5 d6 Qa8 d7 Bd6 Qbc2 Bb8 Qd1 Bh1 Qf3 Nd6 Qg2 Qb7 Qh3 Bhf3 Qg2 Bh3 Qh1 Bhg4 Bd4 Qb5 Bh3 Nc8 Nc5 Kc7 B4e3 Qf1 Bg2 Nb6 Nd3+ Nc4 Re2 Qf2 Bf1 Qg2 d8Q+ Kb7 Qca5 Nd6 Qdb6+ Kc8 Qe5 Rea4 Rf2 Re4 Qbb5 Kc7 Qc3+ Kd8 Qb6+
2NQ3B/n2r2Br/1b1R1q2/2r1BN2/n3N2p/2Q1bR1B/1r2Q3/1rbbKnk1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 c4 Ke6 g4 h5 b4 a5 b6 d5 g5 Kf5 b7 e5 g6 h3 b5 h2 g7 h4 b6 a4 c5 e3 c6 Ke4 c7 a3 f5 d3 f6 d2+ Ke2 d4 f7 a2 Bh3 d3+ Kf1 e2+ Kf2 e1B+ Kf1 Ke3 Bb2 e4 Nf3 Ra5 Be5 Ba3 f8Q Nh6 g8Q Bc1 Bg7 Qf6 Qff7 Rc5 Rg1 h1R Qd5 Ng4 Qf5 Bf2 Ne5 Nh2+ Kg2 Nc6 b8B Rh7 b7 Nf1 Qdb3 d1N Qb2 d2 Qh5 Nc3 Nf7 d1R Nd6 Bg4 c8N Na4 Nd2 Na7 Nf5+ Ke2 Qh8 e3 Ne4+ Ke1 Qd8 e2 Rb1 a1B Be5 Rd7 b8B Be3 Qa3 Bc3 Rb6 Ba5 Rd6 Bb6 Bh8 Qe6 Beg7 Qf6 Qg6 Bh5 Qg4 Rh2+ Kf3 Bf7 Rg3 Bb3 Bc7 Bd1 Qh5 Rg2 Qc3+ Nd2+ Kg4 Kf1 Bb8 Kg1 Qhe8 Nf1 Kf3 Bc2 Qe6 e1R Qec4 Rd1 Qe2 Rd2 Bc7 Bd1 Bb8 Rb2 Bc7 Kh1 Bb8 Rg1 Bc7 Bh6 Kf2 Bhf4 Ke1 Bfe3 Nf2+ Kh2 Rf3 Rh1 Ne4+ Kg1 Re6 Rb1 Be5 Rh2 Rd6 Rg2 Qa6 Rgb2 Qe2
1r1q2b1/BNr1r1k1/1QBNbQBb/1b1b2n1/Qn3pN1/1R6/nR3Q1r/3K4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 g4 a5 e4 h5 b4 d5 c4 f5 c5 Kf7 g5 d3 c6 d4 e5 h3 b6 h4 g6+ Kg7 b5 h2 e6 h3 c7 a4 b7 f3 b6 a3 e7 a2 e8B f4 Na3 Na6 b8Q Ra7 b7 Nh6 Bc6 Nf7 Be3 Nb4 Nc4 Ng5 Nd6 Be6 Rb1 a1R Qa4 d2+ Kd1 f2 Bd3 f1B c8Q Ra2 Nf3 Rc2 Rg1 h1R Rg2 h2 Rb3 Rg8 Bf5 Bb5+ Bg1 Rh8 Ne5 Bg8 Ng4 Be6 Bd5 Rc7 Bc6 Re7 Qbc7 Rg8 b8Q Rb7 Qb6 Rbc7 Bd3 Rh8 Q8a7 Rg8 Ke2 d1N Nb7 Nc3+ Kd2 Nca2 Kd1 Rh8 Rgb2 Rg8 Bc2 d3 Qf2 d2 Qab6 Rh8 Bd3 Bg8 Qf5 Be6 Nf6 Bg8 Ne4 Be6 Ned6 Rg8 Ke2 d1B+ Kd2 Bf3 Ke1 Bfd5 Kd1 Kh6 g7 Rh8 g8N+ Kg7 Nh6 Bg8 Qg3 Bdf7 Kd2 Be6 Bf2 Rb1 Ng4 h1B Bc5 Bhd5 Qf2 Rbh1 Bc2 R1h2 Kd1 R8h5 Qba5 R5h3 Ba7 Rc3 Bb1 Rc8 Qab6 Rb8 Be8 Rc2 Bg6 Rcc7 Be4 Kh8 Bg2 Bh6 Bh1 Kg7 Bg2 Bdc4 Bc6 Bcd5 Qf6#
1K4Q1/1b1r1QqB/1R2r1b1/1q1r1n1r/NR2pN1r/R7/N3n3/bRBQ1rk1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe3 Kg4 f5 e1R f6 h3 f7 a2 Na3 Qd7 Nb5 Rh5 Na3 Ne7 Nc4 Ra7 Na3 Nbc6 b8R Bg7 f8Q Nf5 Nb5 Bb7 c8N Bh8 Rb1 a1Q Ne2 Rh4 Qd2 Kf3 g4 Kf2 Rg1 h1B g5 h2 g6 Qa4 Ra1 Qg7 Qd1 Qb3+ Nbc3 Qb5+ Kc2 Rh5 Nf4 Be4+ Bd3 h1R Na2 R1h4 Qf7 Rf1 Rh1 Ra6 Rh3 Kg1 Rb1 Ra7 Kd2 Ra6 Bc2 d3 Kc3 d2 Re3 Ba8 b7 Ncd4 Nb6 Bd3 Na4 Re6 Rb4 Ne2+ Kb3 d4 Bb1 Qg8 g7 Be4 Rc3 d3 Bc2 Qf8 g8Q+ Qg7 Ka3 Nfd4 Rcb3 Bg6 Rb1 Nf5 Rc8 Qf8 b8R Qg7 Rc3 Bh1 Rb6 Bb7 Qe1 d1R Qd2 Rde1 Qd1 d2 Be4 Re7 Re3 Rd7 Kb3 Qa5 Kc4 Qa6+ Kc5 Qd3 Qc2 d1R Rf3 Qa6 Ra3 R1d6 Qd1 Qd3 Ra6 Rd5+ Kb6 Qb5+ Ka7 R5d6 Bd3 e4 Kb8 Re6 Bc4 Rd5 Rb6 Rd7 Qd3 Rd1 Qb3 R1d6 Qd1 Rd5 Bd3 Qc3 Bc4 Rc5 Qfe8 Rec6 Qgf8 Qa1 Bg8 Re6 Qef7 Rcd5 Bh7 Qf6 Q7g8 Qe7 Qff7 Ba1 Qff8 Qg7 Qff7
R2BQB2/q6n/3n1bb1/n2N1B2/B2rpRrQ/k1r1R1Nb/1n2r3/KN4n1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c3 e3 f4 d5 b4 Kd7 g4 Kd6 b6 h5 c4 e5 f5 a5 b7 e2 Kd2 e1N b5 Kc5 g5 Kb4 g6 a4 f6 h3 c5 d3 g7 a3 b6 h2 c6 a2 c7 d4 f7 h4 Qg4 h3 Bb2 Be7 Kc1 d2+ Kd1 Nf3 Kc2 d1N f8R Ra3 Rf7 Nf6 g8B Rh4 Qg6 d3+ Kc1 Nh7 Qh5 Qd7 Ne2 Nc6 b8Q d2+ Kc2 e4 Rf4 Bf6 b7 Ne7 Bg2 Nf5 Re1 h1R Ng3 h2 Re3 Re1 Bh3 h1B Bb3 Bg2 Bd4 Qf7 Bb6 Nb2 Qg4 Be6 c8N d1R Ne7 Nd6 Qe8 Bf5 Bd8 Rd4 Nd2 Re2 Qg5 Bg6 Bf5 Rg4 Qh4 Ng1 Nd5+ Kc5 Kc1 Bh3 Bc2 Rc3 b8B Nb7 Bbc7 Qg7 Be7+ Nd6 Bf8 Qe7 Rb1 a1N Bd8 Rcd3 Bd1 Nb3+ Kc2 Qf7 Ra1 Rc3+ Kb1 Qc7 Ra6 Na5 Ka1 Qg7 Ra8 Qa7 Nc7 Kb4 Nd5+ Ka3 Bc2 Qc5 Ba4 Qa7 Nb1#
KB1q2Q1/nr1nb1q1/rr1N3B/5N1B/1pR2N2/1k4rQ/r3QqR1/3bQr2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 b5 a4 c5 d6 h5 d7 f3 a5 f6 a6 b3 d5 b2 g5 f2 a7 h3 d6 h2 g6 h4 g7 h3 Bh6 Be7 Qe1 Kb3 Kd5 c4 e4 c3 e5 f5 e6 c2 Ra2 c1R Be2 f1Q Nf3 f4 Nh4 f3 Nc3 b1R Ne4 f2 Bh5 Rc3 Nf5 Rg3 Qe2 Qg2 Rc1 h1R Rc4 f1R Qe1 Qf3 Rg2 h2 Kc5 Nf6 g8Q b4 Qg4 Rh7 Qh3 Rb2 Kb5 Qh8 Kb6 Ra2 d8B Nc6 d7 Qg7 Ned6 Qf2+ Kc7 Rb8 a8Q Na7 Qae4 Rb6 Q4e2 Bb7 Kb8 Rhg1 Bc7 h1Q d8N Bf3+ N8b7 Raa6 Ka8 Nd7 Bb8 Bg4 Nd8 Qh2 Qe5 Bd1 Q5e2 Ra2 N8f7 Rba6 Nh8 Qb6 Ng6 Qd8 Nf4 Rh1 Rg1 Qf2 Rg2 Rb6 Qhg4 Rh4 Qh3 Rg4 Ne8 Rg6 Ned6 Bh4 e7 Rba6 e8Q Be7 Nf7 Rgb6 Qg8 Rb7 Bg5 Rhh6 N7d6 Rf6 Bh6 Rg6 Ne8 Rgb6 Ned6
3Q1bBR/1Nr5/1N1N1n2/3qp1Rr/3bQ1Q1/B1R1Q3/2r2bbk/K2nnr1r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 b4 Kg5 c4 Kf4 Kc2+ e3 Kb2 h5 g5 a5 b6 e5 b5 d5 b7 a4 c5 h3 b6 h2 c6 d3 c7 d2 g6 e2 g7 e1B Ne2+ Kg4 f4 h4 f5 h3 f6 d4 f7 d3 Na3 Nd7 b8Q Rh7 b7 Ngf6 Qa7 Nc5 b8Q Bf2 Nd4+ Kg3 Ne6 Bb7 c8N Qd5 Nc4 a3+ Ka2 Bc6 g8R+ Rg7 Qc2 d1R Nd6 d2 Qc8 Nd3 Nd8 Ne1 N8b7 Rb8 Qd7 Rc8 Qe4 Rc7 Kb1 a2+ Kb2 Rg6 Nb6 Rg4 Bg2 Rg6 Rg1 h1R Qdg4+ Kh2 Rh8 Rh6 Bf1 Rh5 Rg3 Rg1 Bc4 Rg2 Rb1 a1B+ Ka2 Rh7 Rbb3 Rh5 Ba3 Bad4 Rbc3 Rc1 Bb3 d1N Bc4 Rc2+ Ka1 Rg1 Bb3 Rf1 Ba2 Bh6 f8Q Bg7 Qd8 Bf8 Rg1 Qc4 Qh7 Bg2 Qhe4 Qc6 Be6 Qd5 Bg8 Bf3 Qa6 Bh1 Rg3 Bg2 Qad3 Kh1 Qgc8 h2 Qde3 Kg1 Rg7 h1R Rg5 Kh2 Qcg4
6rk/RNQq1n1n/2p5/Rn3r2/K3RBBQ/4brb1/b3BnQ1/2b1QNb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 f5 h4 Kf7 e4 a5 d4 g5 Kd2 Kg7 Kc3 a4 h5 a3 b6 a2 b7 g3 d5 c6 e5 g4 d6 g2 b5 f3 Kb4 c3 e6 c2 b6 g3 e7 f4 e8B f2 Qe1 f3 Qd1 Ra5 Qe1 Nd7 b8R Rf5 b7 Nh6 Nc3 Nf7 Be2 f1N Nb5 f2 Ka4 Nd2 Ra8 f1R b8Q R1f3 Ra7 Nf6 d7 Nh7 Nd6 Ne4 Nb7 Rg8 h6+ Kh8 Rh4 Bd6 Qc7 Nf2 Bf4 c1B Rg4 Qe7 d8Q Be6 Bd7 Qe8 Bc8 Qd7 Qg5 Bd5 Bd3 Be6 Ne2 g1B Ra5 g2 Ng3 Bc4 Be2 Be5 Nf1 Bd5 Be3 Bg3 Re4 Be6 Bf4 Bc4 Rb1 a1N Qh4 Nb3 Ra1 Nd4 Qg5 Nf6 h7 Ba2 Qh4 Nb5 Qh1 B1h2 Ra7 g1B Qg2 Nd3 Ra5 Bge3 Ra7 Nf2 Ra5 Bg1 Ra7 Kg7 h8Q+ Kg6 Qh5+ Kg7 Qh4 Nh7 Ra5 Qe7 Bd7 Kh8 Be6 Qd7 Ra7 Rd5 Bg4 Rf5 Kb4 Bb1 R1a5 Ba2 Ka4
1Q2bn2/2BNq3/pR3bR1/b3rB2/Rbrk1QQ1/1Kbbr3/RB3n2/1N3q2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 b4 Kf6 h4 Ke5 c4 g5 Kc2 d5 b6 g3 h5 e3 f3 g2 b7 e2 h6 e1R h7 d3+ Kb2 d4 b5 a6 b6 g4 c5 d2 c6 d3 f4+ Kd4 c7 e5 f5 g3 f6 e4 f7 e3 Nh3 g1B Nc3 e2 Nf4 g2 Ne4 Qe7 Ra2 Nh6 Nf6 Ng4 Rh6 Nd7 b8R Nf2 Qb3 d1B b7 d2 N4d5 Bc2 Nc3 d1Q Rg6 Bd3 Nb1 Bh2 Qb5 g1B Bg2 Be5 Be4 Bg7 Qb3 Nf8 Nd7 Bef6 Bf4 Rg8 h8B Ra7 Qe6 Ra8 Ne5 Bd7 c8R Be8 Nd7 Bh2 Bc7 Bd6 Qg4 Bb4 Rd8 Qc1+ Kb3 Qf4 Bg2 Rc1 Rdc8 e1B Be4 Rc4 Ra4 Ba5 Ra2 Beb4 Rd8 Ne6 f8Q Qc1 Qf7 Qf1 Rdc8 Nf8 Ra4 Bg5 Qff4 B5f6 Ne5 Bh4 Nd7 Rc1 Qd2 Qe5 Qh6 Bf7+ Qe6 Rc2 Qc1 Bh6 Bf6 Bd2 Rg1 Rg3 Bcd8 Ke3 Rc3 Qg5 Bc7 Qg7 Bfe5 Bf6 Rc5 Rf3 Rg5 Bh5 Qg4 Rg3 Ba1 Qh7 Rc3 Kd4 Rg7 Be1 Qcf4 Re3 Rg5 Bd2 Rg8 Bc1 Rg5 Bb2 Rcc5 Rc1 Rc2 Qg7 Re2 Rc4 Rd2 B2c3 Rda2 Qh7 Bb2 Bf7 Rg6 Qg7 Re8 Qh7 Re6 Re8 Rb6 Re5 b8Q Be8 Qh2 Qf7 Qhf4 Qe7 Bf5+
NRR5/2KpnR1B/bN3r2/2nQ1Q1r/bNb2rrq/2b3kN/r7/Bn4Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 c4 h5 e4+ f3 b4 f5 g3 a5 c5 a4 b6 f4 b7 a3 b5 h3 c6 d3 c7 d2 b6 a2 Na3 h4 Bd3 h2 Nh3 Ne7 Kd6 Bg7 e5 Rh6+ e6 Na6 b8R Bc3 b7 Rf6 Nc2 Nc5 Bh7 Ra4 Qg1 d1B Nb4 f2 Bb2 f1N Rc1 f3 Ba1 f2 Rc2 Kf3 g4 Nd2 g5 f1B g6 Bc4 g7 Nb1 g8Q Rf4 Qf7 Qh8 Qf5 Qf6 Qd4 Kg3 Rf1 h1R Qdd5 Qd4 Rff2 Rf1 Rc1 Ng8 e7 Qe4 e8N Ne7 Bb2 a1R Rcc2 R1a3 Ba1 Ra2 Qg8+ Rg4 Qge6 Ra6+ Nc6 Bh8 Qg5 Bf6 Nf4 h3 Ra8 Qh1 b8Q h2 Qgd5 Bd3 Qee4 Nd2 Qb1 Na4 Rb8 Bd4 Qb6 Nb1 Nb4 Bh8 Rc5 Bc3 Qee6 Bb7 c8N Bc4 Nc7 Bdb3 Rc6 Bc2 Qbd4 Nc5 Na8 Ba4 Qd1 Rb6 Qf7 Bba6 Qe1 Rb7 Qf6 Rc7 Ncb6 Rc8 Qed1 Rf8 Rcc8 Rf7 Kc7 Rf8 Nfd3 Rf7 Rf5 Rff4 Nf2 Rf8 Rg5 Rf7 Qff5 Rf6 Rg6 Qg2 Rg5 h1R Rg7 Rh5 Rf7 Qh3 Q1h1 Qh4 Nh3 Rf3 Qc1 Rff4 Qg1+
1NQbb1b1/p5Rn/3Br1R1/1r3q2/3K3k/Q4Q2/b1BnqQ1q/Rb2BbN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Kf6 c4 Kg5 e4 d5 b4 h5 b6 f5 b7 h3 c5 h4 c6 h2 c7 d3 b5 h3 e5 d2 b6 f3 Ke3 f4+ Kd3 d4 e6 f2 e7 f3 e8Q Qd5 Qee1 Rh5 Ra2 Qf5+ Qe4 Nf6 Qb3 Kh4 Ra5 d1B Kc4 d3 Qb4 d2 Qa3 Be7 Nc3 Nbd7 b8B Ba4 b7 d1Q Na2 Qe2+ Kd4 Bd8 Nb4 Nc5 Bd2 Be6 c8Q Nh7 Bd6 Ba2 b8Q Be8 Qb6 Rh6 Bc3 Re6 Nc6 Rb8 Be1 Rb7 Qf4 Ne4 Nb8 Nd2 Qfe3 Bb1 g5 Ba2 Qbc5 Rb5 g6 Bb1 g7 Ba2 g8R Bb1 Bg2 Ba2 Rg3 f1B Qcc3 f2 Bd5 Bg2 Na6 f1B Bb3 Be4 Nb8 Beb1 Qf2 Qg5 Nf3+ Kh5 Rhg1 Qg6 Qac5+ Qf5 Ng5 Kh4 Bc2 h1B R1g2 h2 Nh3 Rg6 Ng1 Bc4 Ra1 Bg8 Q5a3 Re6 Re3+ Kh5 Rg4 Bd5 Rf3 h1Q Rg7 Qh2 Rfg3 Kh4 Qcf3 Bda2 R3g6+
1n1B1bR1/4QB2/1K1n1BnB/7Q/bN2nrn1/5rb1/2bpNR1q/NR1q3k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 Kb5 f5 c4 d5 e3 f3 g5 f2 b7 d3 g6 h3 g7 d4 c5 h4 c6 f4 c7 d2 Qh5 d1B Qh6 f3 Bg2 f1N Na3 h2 Kb6 d3 b5 a4 Qg5 h3 Qg6+ Bf5 Qh7 Nd2 Ne2 Ne7 g8Q Ng6 Rf1 h1Q Nc2 a3 Qgg7 a2 Rb1 a1B Rf2 h2 Qh5 Ra4 Qe7+ Be5 Na1 Rh7 Bh3 Rf7 Bf1 Qd7 c8N Ra3 Bg2 Ba4 Na7 Qd6+ Nc6 Qd1 Bb2 h1N Bc3 Ng3 Bd4 Na6 b8B Rc3 Bc7 Nb8 Bd8 Nc4+ Kb7 d2 b6 Rd3 Nb4 Rb3 Ka7 Qc7+ b7 Nd6 Qd7 Bf4 B4f6 Be5 Qe7 Ra3 Bh3 Rc3 Rg2 f2 Bg4 f1N Rf2 Nh2 Bh3 Bfd7 Be6 Ng4 Bc4 Bc2 Bb3 Qc8 Kb6 Ba4 Ba2 Qf5 Be6 Qf3 Ba2 Qfh1 Bc4 Na6 b8B Qh2 Bbc7 Nb8 Ba2 Rh7 Bf7 Rh6 Rg2 Kf3 e4 Bf4 e5 Nge4 e6 Bg3 Rf2+ Ke3 Qa5 Rh4 Qh5 Rb3 Qd7 Rc3 e7 Rb3 e8R Rd3 Rg2 Kf3 Qe7 Rc3 Rg1 Kf2 Rf1+ Kg2 Rf5 Kh1 Rf2 Nb5 Bce5 Rf3 Bf4 Nbd6 Bh6 Ne3 Rb3 Rhf4 Rb2 Ng4 Rb1 Bg7 Rh8 Bf8 Rg8
Q1b1n1R1/3N2Q1/6nk/2nB1b2/4n1rb/Nq2pN1K/QBb1nrR1/1R2R1q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 f4 Kg6 Kf2 e5 g4 h5 Kg2 a5 c4 d5 g5 e3 c5 a4 b6 d3 b5 h3+ Kh2 h4 c6 a3 b7 d2 b6 e4 c7 d4 Bc4 d3 Qe1 d1B Ba6 e2 Nf3 e3 Qg1 e1Q Qg3 a2 Nc3 d2 Qg4 Qd5 Qg2 Qb3 Nd4 Ne7 Qg1 Nd7 b8N Bc2 b7 d1N Qf2 Nf6 Nd7 Ne8 b8R Rg8 Rb1 a1N Bf1 Ra2 Ncb5 Nc3 Bg2 Ne4 f5+ Kh7 f6 Ng6 f7 Be7 f8R Qd1 Re1 Bd8 Kh1 h2 Bb2 Qc1 Bf3 Kg7 Kg2 h1B+ Kh2 h3 Na3 Bg2 Rf5 Bf1 Rf4 Bfd3 Rg4 Be7 Qe2 Kh7 Rg2 Bf6 Kg1 h2+ Kf1 h1N Ra8 Nf4 g6+ Kh6 g7 Ng6 Kg1 Be7 Kh2 Nhg3 Kh3 Bh4 Qf2 Ne2 Qg3 N4f6 Bd5 Bf5+ Qg4 Ne4 Nf3 Qb4 Rb8 Nb3 Ra8 Nbc5 Rb8 Bb7 c8Q Qb3 Qc6 Bc8 Qa8 Rf8 g8Q Rf6 Nb5 Ra4 Qe6 Rc4 Qea6 Rf7 Qa2 Qd1 Na3 Rf8 Rh1 Qg1 Rb7 Qd1 Rhg1 Nh8 Rh1 N4c3 Rb6+ Be6 Ne1 Rf2 Rb4 Bef5 Nf3 Rf4 Re4 Qc1 Re7 N3e4 Rf7 Qe1 Rf8 Qc1 Kh2 Qd1 Qg8 Rg4 Kh3 Qe1 Qf7 Ng6 Rg8 Qeb4 Rhd1 Qe1 Rdc1 Qf1 Re1 Qg1 Qg7+
1b1B4/Q3NqnK/1n1r4/2BrN3/r5qR/Qq1pN2q/2q1r1R1/1b1BB1Rk b - - 0 1 illegal: No possible last move, all moves rejected
q3B1qR/3k3r/3bq2Q/1bnBb1BB/b3qNQ1/KpQ5/3R3b/N3nN1r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 f5 d4 c5 Kd2 b5 Kc2 g5 Kb2 g3 e4 g2 h4 g4 h5 c4 d6 b3 h6 g3 e5 f3 a5 f4 e6 c3+ Ka3 b4+ Ka4 f2 h7 b2 e7 c2 d5 f3 a6 b3 a7 Kd7 Rh5 Nf6 Be2 f1Q Bd2 c1B Ka3 f2 Bh6 Qe1 Ra2 f1B Bg5 Nc6 Nf3 g1Q Nbd2 g2 Nd4 Nb4 Nc2 Ne4 Na1 b1Q+ Rb2 Rb8 a8B Rb7 Rh4 Qe8 Bh5 Nc5 Qg4+ Qe6 Rh1 Bb5 Nf1 Bf4 Rd2 Be5 Rh2 Rg8 h8Q Qe4 Qh6 Nbd3 Rh3 Rc7 Rh2 Bca6 Bb7 Qa8 Bc6+ Kc8 e8B Rh7 d7+ Kc7 d8N Ba4 Rh1 B6b5 d6+ Kc8 Rh2 Rgh8 Bd5 Ne1 d7+ Kc7 Rh1 Bfd6 Rh4 Qgd4 Rh1 g1B Rh3 Qc4 Rh1 Qg8 Ne6+ Kb8 Nf4 Kc7 Be6 Bh2 d8Q+ Kb7 Qdf6 Kc7 Bd5 Qce2 Qh3 Qg4 Qc3 Q4e6 Qf5 Kc8 Qg4 Kc7 Bef7 Kd7 Bfg6 Bg1 Rh3 Bh2 Be8+ Kc8 Qg6 Rh6 Qf6 Kc7 Bhf7 Bg1 Rf3 Rh1 Rh3 Bh2 Qg6 Rh7 Rh6 Rg7 Rh8 Rh7 Qh6 Kc8 Bh5 Kc7 Beg6 Kd7 Be8+
2Q3rQ/1n1R4/1qnb1KnB/3r4/RBRnb1rk/p4R2/q3r1BN/r1NQ4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 b4 h5 c4 f5 e4 d5 g4 d3 b6 d2 c5 f3 c6 a4 c7 h3 b7 h4 b5 f2 b6 d4 Ba3 d3 Qe2 d1R Qa2 f4 Qd5 d2 Qd3 h2 Qe3 h3 Qc3 f3 Bc5 Bf5 c8Q Kh4 g5 Re1 g6 d1R g7 Ne7 g8Q Rd5+ Kf6 Re2 e5 Nbc6 b8R Be4 e6 Ng6+ e7 a3 b7 Ra7 Bg2 f1N Qc2 f2 Nd2 Ra4 Rd1 Qb6 e8R Bd6 Ra8 Ne3 b8B f1N Nb3 Ng3 Bb4 Nef5 Rf8 Nfd4 Nc1 Ngf5 Qg7 Rg8 Nf3+ Kh5 Rhg1 h1Q Nh2 Kh4 Rgf1 Qg1 Rf3 Qe1 Rdd3 Qd2 Qd1 Qa2 Rf7 Nf4 Rd7 Ng6 Bd2 Rb4 Rc3 Ra4 Rc4 Rb4 Ng4 h2 Ra4 h1R Bh6 Rg1 Qgf8 Rb1 Nh2 Ra1 Bh1 Rg4 Bg2 Bc7 Qg7 Nd6 Qh8 Nb7 Ba7 Bf4 Bb8 Bg3 Bd6 Bf4 Bc5 Bd6 Bb4
4b3/1N2Q2Q/qN1B2NR/1bqR3b/1Q1RKR2/p2B2bn/2r1nk2/r2rr1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 h4 Kf5 b4 Ke4 b6 f5 h5 d5 c5 g5 e3 a5 c6 g3+ Ke2 a4 b7 f3+ Kd2 d3 h6 f2 c7 g4 b5 d4 h7 f4 b6 f3 Qe1 g2 Rh4 Qd5 Ne2 g1B Ra3 Nc6 b8R Bd7 c8R Nf6 b7 Be8 Rd8 Nh5 Rbc8 Nf4 b8Q g3 Rh6 g2 Qb4 Nh3 Nf4 Bd6 Ng6 Bg3 Rc7 Qc4 Rf7 Qa6 Rd5 Ra7 Be2 f1B Rfd7 Rf8 h8Q f2 Qh7 Rc7 Rc3 a3 Rc4 Rf6 Qbe7+ Re6 Bb2 Re5 Bc3 Rc8 Bb4 Re6 Bd6 Re5 Kd1 d2 Kc2 d1R Bd3+ Kf3 e4 Be2 Qb4 f1B Nd2+ Kf2 Rd8 Ra1 Rd7 Re6 e5 Bh5 Rd8 Na5 Rd7 Nb3 Rd8 Nc1 Rd7 Rf6 e6 Ne2 Rd8 Bd7 Rf8 Be8 Rf7 Rf3 Rf4 Rc6 Nb1 Rc5 Nc3 Rc7 Na4 Rc6 Bf5 d3+ Kd2 Re1 Rcd4 Rcc1 Nb6 Ra1 Rc5 Nc1 Kc3 d2+ Bd3 d1R Rb5 Ne2+ Kc4 Rdc1+ Kd5 Rcb1 Ke4 Rbd1 Rg4 Rf5 Rbd5 Rf7 Qh4 Rc7 e7 Rc2 Qg5 Ba4 e8N Bd7 Qge7 Bc6 Nf6 Be8 Nfd7 B1h2 Rb5 g1Q Rf4+ Kg2 Rc4 Nc1+ Be2 Qf2 Rd5 Bg1 Nc5 Qd4+ Kf5 Qe3 Nb7 Qc5 Rh4 Kf2 Rcd4 Rc4 Rhe4 Rc2 Bb5 Bc4 Rg4 Ne2 Ke4 Bb3 Bc4 Bba4 Bd3 Bab5 Rf4+
1b5B/2QrQq2/4Q2r/NNQ5/k2p3n/R1Rrr1r1/1KB1bn2/R1Nb1qb1 b - - 0 1 illegal: No possible last move, all moves rejected
1qbBk3/1qB1rR2/1r1Q1Nqn/1R1BQ2N/Kp2N1Q1/2r5/1r1q3q/bn5Q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 h5 g4 f5 e4 c5 d4 b5 Kd2 f3 Kc2 b3+ Kb2 f4 Ka3 f2 g5 h3 e5 h4 a5 h2 e6 h3 d6 b4+ Ka4 b2 a6 f3 e7 c4 g6 c3 d5 c2 g7 Nc6 a7 Rh7 Nc3 b1R Bb5 f1Q Ra3 f2 Bf4 c1Q Bc4 Nh6 g8N Nd4 Ne4 Nf3 Ne2 Qd2 N2g3 Qfd3 Nh5 Rb8 a8Q Rb6 Rf1 h1Q Rc3 h2 d7+ Kf7 Bb3 Bg7 Rc5 Ba1 Bc7 Rb2 Rb5 Qg1 Bc4 h1Q Ngf6 Qgh2 Ba2 Q1g2 d6+ Qd5 Qc6 Qg6 Qc4 Qe8 d8B Qeg8 d7 Qe8 Rh1 f1R Qd4 Re1 Rf1 Re3 Rf2 Rc3 Qh1 Qe2 Qe5 Nd2 Qf5 Qh8 Qg4 Nb1 Bb3 Qd2 Rf5 Ke6 e8Q+ Re7 Ba2 Qhh7 Qh8 Kf7 Rf4 Qe6 Bd5 Qhg8 Qh7+ Q6g7 Qhf5 Qg6 Rf3 Kf8 Qe5 Qc6 Rf5 Qb7 Ne8+ Rf7 Bf6 Rg7 d8Q Be6 Qdd6+ Kf7 Rf1 Rh7 Neg7 Qgb8 Ne8 Rg7 Qc6 Kf8 Bfd8+ Bf5 Qcd6+ Re7 N8f6 Be6 Ng8+ Ke8 Rf7 Bc8 Ngf6+
1Qq2n1q/Q1N1K3/Qb2nr2/4NQ2/pN5B/2n1R2r/bRBq1R2/kqqn4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 b4 h5+ Kf3 d5 c4 f5 g4 a5 e4 d3 g5 Kd4 g6 a4 g7 h3 c5 d2 c6 h4 c7 h2 b6 h3 e5 Nh6 g8R Nf7 b7 Ra6 b5 Rf6 b6 Nd7 b8Q Bc5 e6 Ng5+ Kf2 f3 Kg3 f2 Kf4 Nf8 b7 Bb6 e7 Be6 e8N Qc8 Ba6 f1Q+ Qf3 d1N Qa7 Nc3 b8Q Qe2 Ra2 Rhh6 Bd3 Qd2+ Kg3 Bf7 Rb2 Nge6 Na3 f4+ Kg4 Rh5 Qe2 f3 Bc2 f2 Qea6 f1Q Rg5 Qc4 Rf5 Qa2 Rf2 Qb1 Nb5+ Kc4 Nf3 d4 Re1 h1Q Re3 d3 Nbd4+ Nb5 Rb4+ Kc3 Ne5 h2 Rb2 Rh3 Ndc6 Qf1 Nb4 h1Q Ra2 Qh2 Ba3 Qfc1 Rb2 Nd8+ Kg5 Ba2 Nbc6 Qhh1 Be7 Qh2 Nb4 Nde6+ Kg4 Rhf3 Bd8 Qh8 Be7 Rh3 Bd8 Qb7 c8Q+ Qc7 Qd7 Qc8 Nc7 Qdd1+ Ree2 d2 Qh7 Qe1 Qf5 d1N Re4 Rfh6 Bh4 Qed2 Bd3 Rf6 Re3 Nf4 Rc2+ Kb3 Rb2+ Ka3 Be4+ Nbc3 Bc2 N4e6 Nd7 Ng5 Kf4 Nge6+ Ke5 Bd4+ Kd6 Bb6+ Ke7 Bb3 Nbd5 Bc4 Rb3+ Ka2 Nb4+ Ka1 Rb2 Ba2 Ne5
BK1b1Qr1/3QBQ1R/R5kr/QNn4r/p1N5/qnb3BN/4rbqr/7b b - - 0 1 illegal: No possible last move
K1R1rBRq/8/1qN1Rqb1/nN1N2bq/p3rb1N/1b3B2/1B4Q1/1nQq1k2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 c4 g5 e4 f5 b4 a5 e5 f3 h3 Kg3 c5 Kf2 h4 g3 b6 g2 e6 a4 h5 d3 c6 f4 b7 g4 e7 d2 e8N g3 c7 Bh6 b5 Ne7+ Kc5 d5 Kb6 d4 Ng7 d3 Nc3 Nbc6 b8B Nd5+ Kc5 Re8 b6 Be6 c8R Bg5 h6 Na5 Nge2 g1B h7 g2 h8Q Bh2 b7 g1Q Nb5 Nc3 Bd6 Bb3 b8N Re4 Bg2 Nb1 Qh3 Qh8 Kb6 Bg3 Qc2 d1Q Nc6 d2 Nf5 Bh2 Rg8 Rae8 Ka7 Ke1+ Bc5 f2 Bf3 f1B Nec3 Bd3 Nd5 Qe2 Bb2 d1Q Qg4 Kf1 Qc1 Bg3 Rh6 Qge3 Bh1 f3 Nh4 f2 Bf3 B3f4 Re6 Qed4 Qg3 Qdf6 Bf8 Qfh6 Bh1 Qeh5 Bf3 Q6f6 Nb8 Qd4+ Ka8 Qb6 Qh2 Re1 Ra3 Bg6 Ra2 Re4 Qg2+ Ke1 Ra1 f1Q Ra3 Qff2 Ra2 Qfd4 Ra1 Qdf6 Ra3 Bc4 Rc3 Ba2 Rc8 Bb3 Qg4 Kf2 Nc6 Kf1 Qg2+
RRN3Bn/3bb1n1/2Qr4/1b1N2p1/QBnQ1n1N/1q1q2kr/4QbR1/2n2K2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 h5 f5 h6 d5 c5 g5 h7 a4 b6 d3 c6 d2+ Kf2 g3+ Kg2 a3 c7 f3+ Kh3 Kf4 e5 f2 Kg2 a2 b5 d4 e6 d3 e7 Bd7 c8Q Nf6 e8R Nc6 b7 Ne7 b8N Ng6 b6 Ra6 b7 Be7 Rf8 Ne8 Rh3 Rd6 Qe1 Ng7 Ba3 d1Q Bc5 d2 Bb6 Qb3 Bc4 f1N Ba5 d1N Nf3 Nc3 Nh4 Ne2 Rh2 Nd2 Bg8 Nc4 Kf1 Kg4 Qc6 f4 Qd1 f3 Nc3 f2 Re8 Kf4 Bb4 Nc1 Rb1 a1B Qe2 Bb2 Qa4 Ba1 Nc6 Bb2 Nd1 Bd4 b8Q Bb6 Ne3 Ba7 Kg2 f1B+ Kg1 g2 Qc7 Bd4 Na7 Bc5 Kf2 g1N Nc8 Nh3+ Ke1 Bd4 Nd5+ Kg3 Qcc6 Nhf4 Ra1 Bfh3 Rf8 Bhg4 Kf1 Bf2 Qab5 Bgf5 Ra8 Be8 Qa4 Bfd7 Qb7 Bb5 Qc6 Bd7 Ncb6 Qe8 Nf3 Bd8 Qd1 Qe4 Qe2 Be7 Rfb8 Nge5 Nc8 Qed3 Rb6 Rh6 Rbb8 Rh3 Nh4 Neg6 Bf7 Rf8 Be6 Rf6 Bg8 Rd6 h8Q Ne8 Qf6 Ng7 Qd4 Nh8 Rg2+
1NQKN2Q/q3BNnn/1rR2r2/5np1/bQ3n2/4kRbb/2B2R2/1b3qbN b - - 0 1 illegal: No possible last move
1qb3bq/Qr3k1r/n4N2/rnbBp3/2r1BR2/1bQ1N1BN/1KQ4b/3N2R1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 e3+ Kc2 e2 c5 e1R g5 d3+ Kb2 h3 g6 d4 g7 h2 c6 a4 f5 h4 f6 h3 c7 d2 b6 d3 b5 Rh6 b7 Ne7 g8B Rh7 b6 Na6 b8Q Re4 b7 Nf5 Bg2 Nd4 Qc2 d1R Bd5 d2 Qa7 Bc5 b8N Nb5 Bc6+ Kf7 Nd7 Rc4 Nc3 Re1 Rb1 d1B Bf4 Rb8 Nb6 Rb7 Bg3 a3+ Ka1 a2 Nbd5 Re2 Rb4 Qg8 Kb2 a1B+ Kb1 Rd2 Ne3 Rd5 Be4 Bb2 Ka2 Bc1 Kb3 Bd2 Kb2 Qf8 Ng4 Bf4 Ne3 Bf5 Ra4 Qb8 c8Q Be6 Rb4 Bdg4 Ncd1 Bgf5 Ne2 Bg4 Rg1 h1B Qc3 h2 Ra4 Bg2 Qc2 h1Q Qc3 Bh6 Nf4 Bf1 Nh3 Bf4 Rb4 Bd3 Ra4 Bc2 Rb4 Bb3 Qc7+ Kf8 f7 Bc8 Qc2 Bge6 Qa5 Ke7 f8N Bg8 Nd7 Ke8 Nf6+ Kf7 Be1 Bh2 Bg3 Rc3 Rd4 Rc4 Qac3 Qg2 Be1 Qg7 Bg3 Qh8 Rd2 Rdd4 Rf2 Ra4 Rf5 Ra5 Rf4 Rc4 Bcd5+
2B4N/qNRn1R1B/6rn/2brpRbb/BQ6/1rQr1q2/k6K/b3Br1N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 f4 Ke6 Kf2 Kd5 g4 h5 Kg2 e5 b6 a5 b7 e3 b5 e2 f5 Kc4 f6 d5 g5 d3 b6 e1B f7 d4 g6 h3+ Kh2 h4 g7 a4 Qd2 a3 Ne2 a2 Nbc3 Rh6 Nb5 Rg6 Ng3 Nd7 b8R Qc7 b7 Nh6 g8B Bc5 Bh7 Ra3 f8N Rb3 Qa5 Bf2 Bd2 Be3 Be1 Bg5 Rc1 a1B Be2 Qb6 Bd1 d2 Rf1 d3 Rf5 Qa7 Qc7 Kb4 Nd6 Ka3 c4 Ka2 Bc2 d1R Nh1 d2 Qa5+ Kb2 Qc3+ Ka3 Ra8 Ka2 b8Q Bb7 Rf7 Bf3 Qbb4 Be2 Nb7 Bh5 Bf2 Rf1 Be1 d1R Rc8 Rd4 Rc7 Rd5 Rd1 Rf3 Rd4 Rd3 Rdf4 Bce7 c5 Bd6 Kg1 h2+ Kg2 Bde7 c6 Bc5 Rf3 h3+ Kg3 Rg7 Ng6 Rg8 Nh8 Rg6 Nf2 h1Q Rf5 Qf1 Nh1 h2 Bd1 Rb2 Ba4 Rb3 Rf7 R3d4 R3f5 Qe2 Nf2 h1R Kg2 Rf1 Kh2 Qf3 Nh1 Nf8 Rce7 Nd7 c7 Rd3 c8B Nb8 Rc7 Nd7 Bc6 Qg4 Bb5 Qf3 Ba4
B1b1QRR1/b3N3/q3rpn1/Q1nB2kN/Qn1q1b2/2B2Q2/6rn/n2R2bK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kf6 h4 d5 c4 a5 e4 g5 b4 g3 b6 a4 h5 d3 b5 d4 h6 g4 b7 d2 b6 d3 c5 a3 h7 a2 c6 Na6 b8Q Qd6 b7 Bh6 c7 Nb4 e5+ Kg5 e6 f6 e7 Ra6 e8Q Ne7 Qf3 d1N Qa4 d2 Bb2 Nf2 Nc3 d1Q Bc4 Q1d4 Rd1 a1N Qa8 Nfd3 b8R Nc5 Nge2 Rg8 h8Q Ng6 Rhg1 Qb6 Kh1 g2+ Kh2 Qb5 Nd5 Re6 Ne7 Qa6 Ng3 Rg7 Nh5 g3+ Kh3 Rg8 Bc3 Rg7 Qhe8 Rg8 Qfb7 f3 Bd5 f2 Qb6 f1N Qba5 Nh2 Qb7 Bd7 c8B Rg7 Qa8 Rg8 Bcb7 Bc8 Rh1 g1B Kg2 Be3 Rhg1 Bf4 Kh1 Bf8 Nc6 B8d6 Rg2 Bc7 Ne7 Bb6 Bbc6 Ba7 Qb7 Nbd3 Qbb3 Nb4 Ba8 Rg7 Qc2 Rg8 Qe4 Rg7 Qf3 Rg8 Rf2 g2+ Kg1 Kh4 Rb7 Nh8 Nc6 Bc1 Rf7 Bf4 Ne7 Rg6 Rf8 Rg3 Qe3 Rg4 Rf3 Rg5 Rg3 Rg7 Kf2 g1B+ Kg2 Rg8 Kh1 Rg6 Rf3 Rg2 Rh3+ Kg4 Rg3+ Kh4 Rgg8 Ng6 Qe4 Kg5 Qf3
1K2Rq2/1n1N2r1/2RprB2/1Qb1rNQN/1k1n2r1/r1q2b2/3qB1R1/1NQ2q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 e4 a5 g4 h5 c4 h3 b3 h4 g5 h2 g6 h3 g7 d3 b6 a4 b7 a3 Bg2 f3 Bb2 a2 Qe2 f4 Qd2 f2 Bf1 f3 Qg5 d2 Ne2 d1Q Nd4 Na6 b8Q Ne7 g8N Nf5 Nf6 Rh6 Be2 f1Q Nh5 f2 Rg1 h1R Rg2 h2 Bc3 Bb7 b4+ Kb6 b5 Kc5 b6 Rg1 Bb2 Kb4 c5 h1R c6 Qd2 c7 Bc5 c8Q Qf8 Qcc7 Bc6 b7 Rh4 Qe8 Qfc1 b8N f1Q Qcc8 Rg4 Qc7 Ne3 Nf5 Nc2 Bd4 Bb7 Qc6 Qb2 Kd5 d6 e5 Qbc3 e6 Ra7 e7 Re6 Nd7 Ba8 Qb8+ Rb7 e8R Rb5 Bd3 Bb7 Bf6 Nd4 Be2 Ra5 Na3 Rb5 Rc1 a1R Nb1 Ra3 Qc7 Ba8 Q6b7 Nb8 Qc8 Nbc6 Qa6 Nd8+ Qac6 Nb7 Qa6 Nc2+ Kc6 Nd4+ Kc7 Bb6+ Kb8 Rbe5 Qh6 Rg7 Qg5 Bc5 Qd3 Nd8 Rc2 Bf3 Qc6 Nb7 Qde3 Qdd3 Qc1 Qdd2 Qd5 Rh1 Qc6 Rh4 Qa6 Rg4 Qd3 Kb3 Qb5+ Qb4 Qg6 Bb6 Rc6 Bc5 Qa6 Qbc3 Qg5 Kb4 Qb5+
3q4/RQ1nb1p1/1rQb3N/2nRn1B1/1k2R2b/n3Qn2/bqN1B1K1/rB5Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 b4 f5 c4 a5 h4 g3+ Kg2 d3 h5 f3+ Kh3 a4 b6 f4 b7 a3 b5 Kc5 e5 d5+ e6 g2 h6 d2 h7 a2 b6 d4 Qa4 d1Q Be3 f2 Qa6 f3 Qa4 Qe2 Na3 Na6 b8R Be7 b7 Qb2 Bc1 d3 Nb5 d2 Nd4 d1N Be2 f1N Qc6+ Kb4 c5 f2 Nf5 Nf6 Bg5 Nfe3 Nf3 g1B Nh6 f1N Nd4 Neg4 Kg2 Ne5 Rh4 Nd2 Re4 Nc3 Rd1 Bd6 e7 a1B e8Q Ndf3 Rd2 Rf8 h8Q Nb1 Qe7 Ra7 Ra8 Na3 b8Q+ Bb7 Rd3 Nfd7 Qbc7 Bf2 Qe6 Bc8 Q7b7+ Ka5 Rd2 Rf6 Qeb3 Bh4 Qe3 Nc7 Rd1 Ne6 Rd3 Ra6 Ra7 Rg6 Nc2 Rf6 Rd5 Be7 Nd4 Rg6 Qbc7+ Kb4 Q6b7+ Rb6 c6 Nec5 Qd6 Rf6 c7 Rf4 Qdc6 Rg4+ Kh3 Rg1 Qh7 Rd1 Kg2 Rc1 Qa8 Ba6 c8B Bc4 Qab7 Ba2 Qh8 Qd2 Qh7 Bc3 Qh8 Ra1 Qh7 Qb2 Qh8 Nb8 Bf5 Nbd7 Qf8 Bce1 Rf4 Nec4 Bh7 Ng1 Bb1 Beg3 Re4 Bgd6 Qf1 Nf3 Qh1 Nce5 Nc2#
Kb5Q/BnqQ1Npr/1r1qr1R1/1N6/4q1b1/4kqN1/1rR2n1q/N1B2BR1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 f5 h5 a5 c3 d5+ Kb3 g3 Ka4 d3 e3 f3 c4 g2 b6 d4 Kb5 f2 c5 d2 b7 d3 h6 a4 h7 a3 c6 a2 c7 f4 Kb6 f3 b5 Na6 b8R Nc5 Rh5 Nh6 Ne2 g1Q Rh2 Bd6 Na3 Ng4 Nc2 Nb7 Rg2 Re8 h8N Qh2 Nf7 Re6 Rb1 Ra4 Na1 Rb4 Ka7 Rb2 b6 Bd7 c8Q Qc7 Qh8 Bg3 Qc2 d1Q Ka8 Qe1 Qd1 d2 Rd8 Kd3 e4 Ke3 e5 Bc8 Rg1 Bd7 Bh3 f1R Qa4 Bc8 Qd7 f2 Rg2 Bf4 Ng3 Rh1 Rg1 Qe2 Bf1 Qd3 Rg2 Qe4 Rg1 Kf3 Rg2 d1Q Rg1 Qdd6 Rg2 Rg6 e6 Be5 e7 Re6 e8N Bf4 Bc4 f1Q Rd2 Qfh3 Bf1 Ke3 Rg2+ Qd2 Ned6 Nf2 Nb5 Bd6 Nh5 Qhf3 Rg6 Bf4 Ng3 Bd6 Nb3 a1R+ Na3 Na5+ b7 Raa2 Na1 Rb6 Nb5 Rb2 Qc6 Bd7 b8B Nb7 Qd5 Re7 Ba7 Bg4 Qc6 Re6 Qd7 Qhg2 Be2 Rh7 Bf1 Qh2 Rc8 Ra2 Be2 Qcc2 Bb2 Qfg2 Rg1 Qgf3 Bc1 Rb2 Bf1 Bb8 Rc5 Qcc4 Rd5 Qc7 Rd6 Ra2 Bb2 Qdb4 Rd2 Qbd6 Bc1 Rb2 Rc2+
2nqR1n1/3n1pK1/k2RQ3/rqB1BbN1/2B4B/2rQnRn1/N2b4/1r4Qr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 d5 e4 Kd7 g4 Kc7 c4 Kb6 b4 a5 e5 h3 c5+ Ka7 g5 a4 e6 h4 c6 f3 b6+ Ka6 g6 a3 c7 a2 g7 f2 e7 h2 e8R h3 b5+ Ka5 b7 Nd7 b8B Bb4 b6 Ka6 b7 Bd2 Ba7 Nb6 Be2 f1Q b8B Rh6 Qb3 Rc6 Nf3 Be6 Qd1 Nc8 Bb6 Rc5 Rg1 h1N Rg3 h2 Nc3 Bh3 Rg6 Ng3 Ng5 h1R Rd6 Ra5 Rb1 a1N Rb3 Bd7 Ra3 Nb3 Na2 Bf5+ Ne4 Bb4 Bg5 Bd2 Bh4 Nc5+ Kc2+ Kb7 Bc4 Nd7 Rf3 d3+ Kb2 d4 Ng5 Ra3 Qb1 R8a5 Qd1 Nge7 g8Q Rc3 Qh7 Qe2 Qg1 Ng8 Qg6 Qf1 Qe6 Bf4 Qee3 d2 Qd3 d1R Bb3 Bd2 Bc4 Na7 c8Q+ Ka8 Qc5 Kb7 Qe5 Nc8 Qe6 Re1 Rd5 Rec1 Be5 Rd1 Rd6 Re1 Qc2 d3 Qb3 Bf4 Qc2 d2 Qd3 d1N+ Ka1 Ne3+ Kb2 Rcc1 Kb3 Rb1+ Kc3 Rec1+ Kd4 Rc3 Qd2 Be4 Bd5+ Ka6 Bh8 Qb5 Qd3 Nce7 Bc4 N3d5 Bg7 Bd2 Bf6 Nc5 Ke5 Ne3 Bg7 Nc8 Bh8 Nge7 Kf6 Bh7 Kg7 Bg6 Kh6 Bf5 Be5 Ng8+ Kg7 Nd7 Bc5+
rbb1RNq1/Bp1Q1n2/4B3/q2bn2B/Qkb1Qn2/4RrR1/4Qn2/1nK4N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 g4 h5 a4 c5 e4 f5 a5 h3 e5+ Ke7 g5 f3 a6 h4 e6 Kd6 e7 b3 e8R f4 g6 h2 g7 f2 a7 b2 Nh3 f3 Nc3 c4 Na4 Nd7 Ra3 Nh6 g8B Ne5 Qe2 Nhf7 Rg1 h1N Nb6 b1N+ Kd1 c3 Rg3 Qg5 Be3 c2+ Kc1 Bh6 Bg2 f1B Nf2 h3 Nd7 h2 Nf8 Qg7 Bh3 Bf4 Be6 Rh3 Bh7 Bg2 Bg6 Qg8 Bh5 Bf1 Qd2 Bc4 Qe2 Kc7 d6+ Kc6 d7 Kb5 d8Q Kb4 Qd7 Bd5 Kb2 c1N Kc2 Bc4 d5 Ncd3 d6 Bd5 Qc6 Bc4 d7 Bd5 Ne4 f2 d8Q f1B Qdd7 Nhf2 Bd4 h1Q Bb6 Rb8 a8Q Qh2 Re3 Rf3 Ng3 Qg2 Qa6 Ra8 Nh1 Q2g5 Ba7 Qd8 Rc3 Qa5 Ra3 Bg3 Rc3 Nf4 Kc1 Bh3 Ra3 Bf5 Qcc2 Bd3 Rc3 B3c4 Qe4 Bh4 Qac6 Be7 Rcd3 Bd6 Ra3 Bb8 Rac3 Qb6 Qa4+ Kc5 Q2d3 Rg3 Qe2 Rh3 Red3 Re3 Qaa2 Kb4 Qa1 Rh3 Rf3 Rg3 Rce3 Qa5 Qaa2 Rg2 Rh3 Rg3 Qac2 Rf3 Rg3 N2h3 Qcd1 Nf2 Q1a4+
N3RrrB/pr2nR2/Q6b/NQ2Kn1q/k3R3/n2QN1rB/2b3R1/r2nq3 b - - 0 1 illegal: No possible last move
n7/bq1Q3n/q4kbN/Br5N/rb4rn/1Qr1B3/Rn2pR1K/RR2QB2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 e5 f4 h5 Kf2 d5 Kg2 a5 c4 d3 b6 d4 f5 d2 g5 d3 g6+ Kf6 g7 h3+ Kg3 a4 b5 e3 c5 h4+ Kh2 e4 c6 e2 b7 e1N c7 a3 b6 e3 Qa4 d1R Ne2 a2 Bg2 d2 Qa6 Qd6+ Kg1 h2+ Kf1 h3 Qa5 Na6 b8B Rh4 b7 Rg4 Nd4 e2+ Kf2 Qe6 Bf1 Ng2 Nc3 Bb4 Kf3 Bd7 c8Q Be8 Qd7 Bg6 Bc7 Nh4+ Kf2 Rc8 b8Q Re1 Rg1 h1Q Bb6 h2 Nd5+ Kg5 f6 Rc3 f7 Nf6 f8R Nc7 g8R Nh7 Rf4 Na8 Nf5 Rd1 Bc7 Qa6 Nh6 Qe4 Rf6 h1R Nf4+ Qd5 Rb1 a1B Rh8 Rhh3 Qg8 Qdb5 Qb3 Rhd3 Rhf8 Rd4 Rb6 Qb7 Ra6 Rd5 Ra7 Q5a6 Bb6 Bb2 Qa1 Rb5 Ba5 Re3 Rh1 Be5 Rf7 Bb8 Qac3 Re4 Qg3 Re3 Kg1 Rc3 Kh2 Re1 Rf8 d1N Be3 Nb2 Ra1 Rd1 Qe1 Rd4 Bh3 Re4 Qed2 Bf7 Bc7 Rec4 Rhb1 Qa3 Bf1 Be7 Qe1 Bg6 Nd3+ Rcf4 Ra6 Ba7 Ra4 Qd6 R4a2 Qda6 Ba5 Ba3 Bd4 Re4 Rf2 Bf8 Bdb6 Ra4 Nf4 Bb4 Be3 Kf6 Nh5+
KBBR1Rbb/3N2q1/2nQ2q1/b1Q1RnQ1/1N3rr1/q2q4/3pn3/kn2N2Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kc4 b4 h5 e3+ d3 g5 f5+ Ke5 a5 g6 d5 c3 h3 g7 h2 b6 d4 b5 a4 e4 a3 b7 f3 b6 f4 Bb2 h4 Bh3 a2 Ne2 d2 Qf1 Kb3 c4 d1Q c5 f2 c6 f3 c7 d3 Ba3 Ra4 Bc5 Kb2 Bg4 h3 Nd2 Be6 c8Q Nh6 g8Q Qc7+ Bd6 Qb1 Qg5 Bg8 Nc3 Nf5 Nd5 Rh4 Nb4 Qd7 Qg1 f1Q Qcc5 f2 Nf3 Qbc1 Ne1 Qg7+ Qf6 Qe3 Rd1 a1B Qg2 Qfe2 Rf1 h1N Qh2 Nhg3 Qh1 Qg6 Qg5 h2 Bh3 Rf4 Bg4 Bh7 Kd5 Nc6 e5 Bg8+ e6 Bg7 b8Q Bc3 b7 Bh8 Rg1 f1N Rg2 Qc2 Rf2 Ne2 Qf8 Qcc1 b8N Nd2 Nd7 Nb1 Bb8 d2 Qfd6 Qcc3 Rf3 Qa3 Rf1 Bh7 e7 Qg1 e8R Bg8+ Qe6 Qgg3 Rd8 Qgc3 Rc1 Qcg7 Bh3 Rg4 Rc4 Rf4 Re4 Rg4 Re5 Rf4 Qe4 h1Q Bg4 Qhh7 Qh1 Nh4 Kd6 Nf5+ Kc7 Qhh3 Kb7 Qhd3 Bh3 Rg4 Qed6 Rf4 Nd5 Rg4 Rf3 Raf4 Rf1 Ka2 Rf3 Bc3 Nb4+ Ka1 Rf2 Qc1 Ka8 Qa3+ Na6 Ba5 Nb4 Re4 Rf4 Nfd4 Rf7 Nf5 Rff8 Ref4 Bg2 Ncd4 Bb7 Nc6 Bc8
4QNB1/2Qbb2R/3Nn1nr/r7/qQ6/n1q1p2N/1Rr2B1K/k2qRNrn b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kf6 f4 h5 Kf2 d5 Kg2 e5 c4 a5 b6 d3 f5 a4 b5 d4 b7 a3 c5 a2 b6 d2 c6 d3 c7 h3+ Kg3 h2 Be2 e3 Kg2 h4 Qc2 d1Q Bb2 d2 Qc1 h3+ Kg3 Bd7 c8Q Qc7 Nf3 Na6 b8Q Rh6 b7 Ne7 Qd8 Nc5 Ng5 Qa4 Bd4 d1Q Nd2 Ra5 Qe8 Ng6 Nf1 Be7 Bc4 e2 Bf2 e1N Bg8 e4+ Qf4 Qc8 Qbc7 e3 b8R Ne6 Rb2 Nc2 Qb4 Na3 Rc1 a1R Rcb1 Ra2 Rc1 Kg7 f6+ Kh8 f7 Kg7 f8N Kf6 Qa7 Qc3 Qc7 Qdd4 Re1 Qdd1 Rg1 h1N+ Kh2 Bd6+ Rg3 Ke5 Rf3 Kd5+ Rf4 Be7 Rf7 Ngf4 Rh7 Ng6 Kg1 h2+ Kg2 Ra1 Nh3 Rc1 g5 Rc2 Qcb6 Nh8 g6 Ke5 g7 Ng6 Qc7+ Kd5 Qb3+ Kd4 Qb4+ Kd3 Ng3 Kd2 Nf1+ Kc1 Bf7 Ng3 g8N h1R Nf6 Rg1+ Kh2 Nh1 Ne4 Qcb3 Ra2 Kb1 Rb2+ Ka1 Bg8 Qc3 Nd6
r2Rnq2/BknQ1bQ1/N3q2N/2n1b1r1/1p5q/1Rb4R/N4q2/QK1BQ2n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 h5 Kc2 b5 a4 c5 g4 Kc7 e4 f5 e5 b3+ Kb2 b4 e6 f3 a5 f2 d6+ Kb7 d7 h3 e7 c4 e8Q h2 g5 h4 d5 h3 d6 f4 g6 f3 g7 Qb6 d8Q Rh5 d7 Qe6 Qf7 Bd6 Bd2 c3+ Kc1 c2 Bg5 Na6 Nc3 Be5 Ra3 Nc5 Na2 Nf6 g8N Ne8 Be2 f1Q Be3 f2 Qe1 Rg5 Qg7 Qg2 Bd4 f1Q Nh6 Qf8 Nf3 Qf2 Be3 Bc3 Nd2 Be5 Ne4 b2+ Kd2 b1N+ Kc1 Bc3 Rb3 Na3 Bd1 Nb5 Bd4 Nbc7 a6+ Kc6 a7 Kb7 Be3 Be5 Qde7 Bc3 d8R Bd7 Rg1 h1N Rg3 h2 Rh3 Bb5 Qef7 Bc4 Qd7 Be5 Bd4 Bd5 Kb2 c1B+ Kb1 Bb2 Be3 Bbc3 Bd4 Qef6 Be3 Bf7 Bd4 Rc8 Be3 Qe6 a8Q+ Kb6 Qa3 Ra8 Qb2 Kb7 Qa1 Nd3 Bb6 Nc5 Ba7 Ng3 Nf6 h1Q Nd5 Qhh2 Ne7 Nh1 Nc6 Qhf4 Nb8 Q4h4 Na6
2r1b2b/R2R2nn/1rb2n2/BBQ2k2/qpNrn1q1/2r4R/6BQ/1RN2K1Q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 e4 Kf6 g4 b5 a4 h5 a5 c5 a6 c4 d6 h3 a7 b3 d5 f3 d7 b2 d6 h4 Qa4 c3 Qb3 c2 Qa3 f2+ Ke2 h2 Qb4 h3 Be3 c1R Nd2 b1R Nc4 Qe8 d8R Bg7 d7 Rc3 Bb6 Rh4 Ra3 Bh8 Bg2 f1Q+ Kd2 Qf5 Ke2 Ke6 e5 Nf6 g5 Nh7 g6 Qg4+ Nf3 f5 g7 f4 g8Q+ Kf5 Rc1 h1B e6 h2 e7 Bb7 Qg7 Bc6 Kf2 Rb2+ Nfd2 f3 Ke1 f2+ Kf1 Rbb3 Rc8 Rb1 d8Q Nd7 Rc7 Ndf6 Ba5 Rc8 a8R Qd7 e8B Qdd4 Bh5 Be8 Raa7 Qde4 Qge7 Qc2 Bf7 Qa4 Qed6 Rb2 Nb3 Rb1 Bh3 Bhc6 Rd7 h1N Qh2 Rb2 Bd5 Rb1 Qc5 Ng3+ Kg2 Nge4+ Kf1 Rb2 Re1 Rb1 Nc1 Rb4 Bg2 Rh6 Ne5 Rd4 Bc4 b4 Bb5 Rcc4 Bh3 Nh5 Qh4 Nef6 Q2g3 Bh1 Ne2 Ng8 Rb1 Ng7 Nc1 Rb6 Rab3 Bd5 Bg2 Ngf6 Qh1 Bc6 Qgh2 Rc2 Rh3 Rcc4 Bf3 Rc3 Ke2 f1N Ke1 Nd2 Bg2 Nde4 Kf1 Kg5 Nc4+ Kg6 Qcd6 Kf5 Qc5+
R1r3NK/1Nb1b3/2R1QBr1/5pnb/2BbRrRk/3Qn2r/3Q2q1/q2n2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 h4+ Kh5 c4 f5 b4 g5 e4 d5 b6 f3 b7 a4 b5 g3 b6 d3 c5 g2 c6 a3 c7 g4 Nd2 a2 Nh3 g1B Ng5 f2 Rh3 d4 Nb3 d2 Rg3 d3 Nf7 Qd7 Nh6 Qd8 Nc5 Ne7 Kf6 Na6 b8Q Bh2 b7 Bd7 c8R Be8 e5 Qd5 e6 Qg2 Qf4 Nc7 b8Q Rh7 Qdb3 d1N Be3 d2 Bc4 f1R Bg1 Rf2 Qe5 Rf4 Qd3 Ra6 Rc1 a1Q Qb4 Ra8 Rd8 Rc8 Ng8 Bf7 Nb7 Bg6 Rf3 g3 Rc3 Kg4 h5 Kh4 h6 Bh5 Qee3 Rg7 h7 Rg6+ Kf7 Ned5 h8B Bd6 e7 Ne6 Bf6+ Ng5+ Kf8 Bc5 Qe6 Bd4 e8R N5e3 Qed6 Bc5 Re4 Bd4 Qe6 Bc5+ Ke8 Be7 Rc2 Nc3 Rc1 d1R Qb2 Re1 Qbd2 Ncd1 Rc2 Qf1 Rc1 g2 Rg3 Qe2 Rb1 Rf1 Rb6 Rf3 Rc6 Nf1 Be3 g1B Bc5 Qg2 Be3 Rc7 Ra8 Bf2 Ba7 Bd4 Bc5 Nfe3 Ba7 Bd8 Kf8 Rc8 Bb6 Rh6 Kg7 Rg6+ Kh8 Be7 Bc5 Qh1 Rg1 Rh3 Rg3 Qg2 Nd8 Bc3 Nf7 Nd5 Bg1 Bd4 Rf3 N5e3 Nd6 Rg4 Nb7 Bc7 Rg3 Rf4 Rg4+
1b1rBr1R/1b3q1B/5Q2/3nnp2/N2k1n1B/R1rR2qn/1qr2Q2/NNN4K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Kf6 Kg2 Ke5 b4 d5 e4 h5 c4 a5 b6 d3 b5 d4 b7 f3+ Kh2 h3 c5 f2 g5 d2 b6 d3 g6 h4 g7 a4 c6 a3 c7 a2 Qb3 d1R Be2 f1Q Qa4 d2 Qb3 Nd7 b8N Bb7 c8N Ngf6 g8Q Qc7 Qg6 Nd5 Qbg3+ Kd4 e5 Ra3 e6 Bd6 e7 Rc3 e8B Nf4 Bd3 Ne5 Na6 Rf8 Nc5 f6 Bc2 Qc4 Q6g5 Q4f7 Bh7 f5 Qf6 Rc2 Ba3 Rdc1 Qe1 d1N+ Qf2+ Ne3 Bb4 Qb8 Bd2 Rc3 Be1 R1c2 Nb3+ Kd3 Nd4 Ned5 Nge2 Ke4 Nb3 Qbc7 Kg1 h2+ Kf1 h3 Nec1 Qb8 Rg1 h1N Rg3 h2 Rf3 Nh3 Kg2 Ng3 Rd3 Nh5 Kh1 Nh5f4 Rg3 Ba6 b7 Qbc7 b8R Bb7 Ra8 Qb8 Nb6 Bc7 Na5 Bd6 Re3+ Kd4 Na4 Qbc7 Qe2 Qb8 Bh4 Qbc7 Nd2 Qb8 Qf2 Bc7 Rb1 a1Q Rb3 Qb2 Nb1 Ng6 Kg2 h1R Ra3 Rd1 Kh2 Ngf4 Nab3+ Kc4 Na1 Kd4 Nc5 Qc8 Na4 Bb8 Bc6 Rdd2 Kh1 Qcc7 Be8 Qd6 Qh8 Qdg6 Qf6 Qg3 Ra6 Rg8 Qg7 Rf8 Rh6 Kc4 Qf6 Rd4 Bg8 Ne7+ Bc6 Rd7 Rh8 Rdd8 Bh7 Ned5 Be8 Kd4 Rd3+
Q3bb2/4Qq1N/4BN2/1R2pRqn/BB3nkN/rr4nq/3Q4/1nKbB1b1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kc2 e2 c7 e1B Qd3+ Kg4 f5 a3 f6 h4 f7 a2 Nc3 h3 Qd2 d3+ Kd1 d4 Ne4 Ne7 Nf3 Bf2 Nh4 Bd7 c8B Nd5 Ng5 Bg1 Rb1 a1Q Nh7 Qa7 Rb5 Nf4 Bb2 Qg5 Kc1 Qa2 Bc3 Ra3 Bg2 Qe6 Bc6 Be8 Ba5 Nd7 b8B Nf6 b7 Rb3 Bd6 N6h5 b8Q Rg8 Bdb4 Rg6 Qa2 Ra3 Qa8 d2+ Kb2 d1N+ Kc1 d3 Qd2 Qef5 Be6 Nc3 Bcd7 Nb1 Bc6 Bf2 Rf1 h1Q Bcd7 h2 Bc6 Bh6 f8Q Bg1 Qe7 Bf8 Rf2 Qd5 Rf3 h1N Rf1 Kh3 g4 N1g3 Rf2 Qf7 Rf1 Qb3 Rf3 Qgf5 g5 Kg4 Rf1 Rg8 g6 Rh8 g7 Rg8 Bed7 Qbe6 Bd5 Qg5 Bb3 Rh8 g8N Qef5 Ba4 Rb3 Qc2 Ra3 Be6 d2+ Kb2 d1B Kc1 Rb3 Ngf6+ Kh3 Nd7 Kg4 Be1 Ra3 Bab4 Rg8 Qd2 Rg6 Ba2 Rd6 B2b3 Rd3 Be6 Rdb3 Ndf6+ Kh3 Ng4 Nd5 Ngf6 Qfg4 Rf5 Ndf4 Nf3 Q4h4 Ne4 Kg4 Qed7 Qfg8 Qe7 Qh3 Nh4 Qf7 Nef6+
R2N1B2/1rr3k1/1bQ4q/Nqp2R2/1Q1rBn1R/KN1n1bb1/1B4N1/b2n1n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 h5 e4 f5 d4 Kf7 Kd2 a5 Kc2 a4 Kb2 h3 g4 h4 e5 a3+ Ka2 c3 b6 f3 b5 c2 b7 f4 d5 f2 g5 h2 e6+ Kg7 e7 h3 e8Q f3 g6 Ra4 b6 Qd7 d6 Rd4 Kb3 a2 Kb2 Ne7 Bb5 f1R Qe2 f2 Ka3 Na6 b8N Nb4 b7 Ned5 Bc6 Nf4 Bb2 c1B Qg4 Nbd3 Ne2 Be3 Be4 Qb5 Nc6 Rh7 b8B Rc1 Na5 f1N Nd2 Bb7 Ndb3 c6 Rb1 a1B Qh4 Rc5 d7 Bd6 d8N Bf2 Rd1 Bg3 Rd2 Bc7 Rd1 Bb6 Bd6 Rc4 Rc1 c5 Qc6 Rb4 Rc4 Ba8 Rg1 h1N Bf8+ Kh8 Qg4 h2 g7+ Kg8 Qh4 Nhf2 Rg2 Nd1 Rf2 h1Q Rf3 Nd5 Rf5 N5f4 Qg4 Qh6 Qh4 Nh3 Nf4 Bb7 Ng2 Nhf4 Rh5 Rd7 Rd4 Rc7 Rdd5 Rd4 Rdf5 Bh2 Qe1 Bg3 Rh4 Bc8 Re5 Bg4 Qb4 Bf3 Rf5 Qf6 Ne6 Kf7 g8R Rb7 Rd5 Qh6 Rdh5 Rg7 Rf5+ Kg6 Nd8+ Kh7 Bd6 Rgc7 Re8 Kg7 Bf8+ Kh8 Ne6 Kg8 Ra8 Kh8 Nd8 Kg8 Bd6 Kg7 Bf8+
1bRNqq1B/R7/1n2QR1Q/prN2nRn/1q6/r3q1Bb/1b2B2K/N1n2k2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 e4 f5 c4 d5 h5 g5 b3 f3+ Kg3 f2 e5 d3 b6 Kd4 b4 f4+ Kg2 d2 b7 Ke3 c5 g3 e6 f3+ Kh3 g2 h6 d4 h7 g4+ Kg3 d3 e7 Nh6 e8N Nd7 b8Q Nf5+ Kh2 g3+ Kh3 Nb6 c6 Bd6 Nc7 Qe8 Ne2 g1Q b5 g2 Nd4 a5 Be2 f1N Qb3 Kf2 Na6 d1N c7 d2 Ne6 Nb2 Nd8 d1Q Bf4 Qe1 Na3 Nd3 Nc2 Qb4 Nc5 Nc1 Qe6 N1g3 Qb7 Ra7 Qc6 Rb7 Rh2 Rg8 h8B Nh5 Qh6 Be5 Qce6 Bb2 Bd6 Bd7 c8R Qge1 Rh1 Rg3+ Kh2 Qec3 Ra8 Qe3 Ra7 Rb8 Rd1 Rb7 Rd5 g1B+ Kh1 Bc8 Ra3 Rb8 Na1 Bh2 Bde5 Ke1 Bc7 Rh3 Bg3+ f2 Rad3 Bd7 R3d4 Rb7 Rg4 Rb8 Rg6 Rb7 Rf6 Bc8 Bh4 Bb8+ Kg2 Rg3+ Kh2 f1Q Re5 Nfg7 Rg5 Nf5 Bd1 Qff4 Bg4 Kf1 Bf3 Rg4+ Bg3 Qd6 Bd1 Qdf8 Bf3 Rd4 Bd1 Rd3 Bg4 Na8 b6 Ra3 Bf3 Rf7 b7 Nb6 Bd1 Rd7 Bg4 Rd5 Bf3 Bc7 b8R Re5 Na6 Rb5 Nc5 Bd7 Rc8 Bb8 Qa2 Nh4 Qd5 Bh3 Qe6 Nf5 Be2+
3rq3/Kb3r2/Q1kpbQnB/7N/3r2q1/r1bRQR2/2RR1Bb1/n2NqB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 a5 Kc4 h5 e4 a4 b4 h3 g4 d6 g5 Kd7 g6 h2 e5 f3 b6 h4 Kb5 d3 c4 a3 c5 a2 b7 h3 g7 d2 c6+ Kc7 e6 f2 e7 f4 e8Q f3 Qa4 d1Q Qe3 Na6 b8R Ne7 g8Q Bh6 Qgg5 Rf8 Qf6 Be6 Ne2 Rf7 Nbc3 Ng6 Ng3 Nc5 Nh5 Bg7 Qa3 Qh8 Rf8 Rd8 Rg1 h1R Rg3 Qd4 Nd1 Nb3 Ka6 h2 b5 Qg4 Ka7 Qg8 Rb1 a1R Rb2 Rg1 Qa2 h1B Rd2 Rg2 Qa6 Ra3 Qa4 Na1 b6+ Kc8+ b7+ Kc7 Rh3 Rh2 Rg3 Rh4 Qa6 Qf5 Rh3 Rd4 Qa4 Qg4 b8B+ Kc8+ c7 Bg2 Be2 f1Q Qa5 Kd7 c8R f2 Rcc2 Qe1 Bf1 Bb7 Bc7 Qh8 Bb6 Qg8 Bc5 Kc6 Rf3 Bh8 Re8 Bb3 Re5 Be6 Rd5 Qe8 Bb6+ Rc4 R5d3 Bg7 Be2 f1B Bd4 Bg2 Bf1 Qeg3 Qe1 Q3h4 Bf2 Qh1 Qe3 Qg1 Qf5 Bc3 Qf6 Rd4 Qeg5 Kd7 Re2 Bh1 Bh3 Qe1 Bf1 Bc4 Bf4 Be6 Red2 Kc6 Qge5 Qg3 Qe3 Qg4 Bh6 Bg2 Qa6+
8/5q1k/2p2n1r/1qrQR2B/b5Nb/1qnrB1Qb/r3RQBK/2N2BRb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 a5 e4 f5 d4 Kf7 b4 Kg6 g4 h5 Kg2 a4 g5 a3 e5 c3 d5 c2 e6 h3+ Kh2 a2 b6 f3 b7 f4 b5 h4 b6 f2 e7 f3 e8B+ Kh7 d6 Ra3 d7 Nf6 Bf4 c1R Qd2 Na6 b8Q Be7 b7 Rd3 Qa7 Rc5 b8Q Nb4 Bh5 Qg8 d8R Nbd5 Rf8 Nc3 Na3 Qb3 Re1 a1R Re2 Ra2 Be3 c6 Bg2 f1Q Re8 f2 Nc2 Qfb1 Qd1 f1Q Qg3 Ba6 Qd2 Bb5 Qd1 Ba4 g6+ Kg7 Qd2 Rh6 Qd7 Qb5 Qd5 Q1b3 Qde1 Qf5 Qef2 Qe6 Bf1 Qf7 Bg2 Bd8 Re5 Kh8 g7+ Kh7 Nd4 Be7 Ngf3 Bd8 Rg1 Be7 Kh1 h2 Bf1 Bd8 Kg2 h1B+ Kh2 h3 g8B+ Kh8 Bh7 Bg2 Be4 Be7 Re1 Bd8 Ne2 Be7 Nc1 Bd8 Rf5 Kh7 Ne5 Be7 Ng4 Bd8 Qgf4 Be7 Re2 Bd8 Kg3 h2 Qfd6 h1B Kh2 Bh3 Qdg3 Ng8 Bf3 Bh4 Re5 Nf6 B3g2
nrkBK1QN/1N4Bb/qpQb1qN1/3qB3/1rr3n1/8/1QR1r2n/3B2nR b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 f5 e4 h5 d4 c5 g4 c4 a4 b3 g5 h3 g6 h2 e5 b6 g7 h4 d6 b2 d5 c3 a5 h3 a6 c2 a7 Be7 e6+ Ke8 Nc3 b1R Be2 Rh4 Qd2 Nh6 Bd1 Rb4 Nge2 Na6 Nb5 Nc7 Bb2 c1N Be5 Ng4 Qb2 Rb8 Ra2 Na8 g8Q+ Bf8 e7 Kd7 e8N Qf6 Qb1 Kd8 d7 Bd6 Rc2 Rc4 Qb2 Rb4 Rf1 h1R Rg1 Rh2 Rh1 Ke7 d8B+ Kd7 Be7 Rg2 Bf8 h2 Bg7 Rc4 Ned4 Re2 Ne6 Ba6 Nf8+ Kc8 Ng6 Bb7 Nh8 Bc6 Nec7+ Be8 Bf8 Bg6 Ne6 Bh7 Bh6+ Qd8 Nf8 Qf6 Nc7 Rb4 Na6+ Rc4 Nc5 Rb4 Rg1 Rc4 Bg7 h1Q+ Rg2 Rb4 Nb7+ Nc7 a8Q Rd2 Qba3 Nh6 Bd4 Ne2 Q8a6 Rg4 Bc3 Na8 Qb5 Qh5 Qb2 Rh4+ Kf2 f3 Ke3 f2 Rg1 f1Q Rh1 Ng1 Qa4 Qa6 Nfg6+ Qd8 Qb5 Re2+ Kd3 Rhc4 Qc6+ Nc7 Bcf6 f4 Bc3 f3 Bcf6 Bf4 d6 f2 Bc3 f1N Bcd4 Be3 Ke4 Qh4+ Ke5 Ng4+ Kf5 Nfh2 Bdf6 Bc5 Be5 Qa3 Qcd5 Na8 Ke6 Qa2 Kf7 Qg5 Bef6 Qa6 d7+ Kc7 Bd4 Qh5 Bdf6 Bd6 Bc3 Qdg5 d8B+ Kc8 Qe4 Qf6+ Ke8 Qha5 Be5 Qc5 Qed5 Qd4 Qb5 Qd5 Qc6+
n1b1qk2/1NB1QN1p/1q6/1bqQn3/1b2r1r1/N1QR3B/2R2n1Q/b1K1nB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 e4 f5 g4 a5 b4 h3 c4 f3 e5 d3 b6 f4 e6 f2 e7 d4 c5 a4 g5 a3 b5 f3 c6 a2 b7 h2 b6 Nd7 b8Q Ngf6 c7 Ne5 b7 Ra4 g6 Nd5 g7 Nb6 g8B Na8 Bc4 Rg8 Nh3 Rg4 Bg2 f1B Ng5 f2 Rg1 h1Q Bh3 Qc6 Rg2 Qc5 Na3 Qb6 Rb1 a1B Rb3 Qd5 Qc2 Qdc5 Qc3 Re4 Kd1 d2 Nf7 Bd3 Qa7 f1N b8Q Nh2 Qab7 Nhf3 Qd5 Ne1 Ba6 Bb5 Rh2 Bc6 Baf1 Bb5 Rg2 N1f3 Kc2 d1N Bf4 d3+ Kc1 Ne1 Rc2 Nf2 Nd8 Bcd7 c8N Bf5 Nb7 d2+ Kb1 Be6 Qc7 Kf7 e8Q+ Kg8 Ncd6 d1Q+ Bc1 Qd3 Bf4 Qe2 Nf7 Bc8 Kc1 Kg7 Qed8 Bd6 Qg5+ Kf8 Qg1 Qh5 Bg3 Rg4 Qh2 Rae4 Bf4 Qcc6 Qd7 Bb4 Q7e6 Qcc5 Qf6 Nc6 Bc7 Qe5 Qh4 Qe8 Qhd8 Ne5 Qe7+ Kg8 Qcd2 Kg7 Rd3 Kg8 Qc3 Kg7 Qf6+ Kf8 Qe7+
1N1B1qRb/nbR2r1p/3N3q/2n4q/1nqr2N1/R2QNn1B/1k6/3bQ1BK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Ke6 g4 Ke5 Kg2 a5 b4 d5 e4 f5 g5 h3+ Kh2 f3 b6 f2 g6 d3 g7 Kd4 c5 f4 b7 a4 b5 d2 b6 f3 e5 a3 e6 a2 e7 Na6 b8N Ra7 e8N Bb7 c6 Ne7 g8R Bg7 c7 Nc5 c8Q Nc6 Ba6 f1Q Ba3 f2 Qd7 Qc4 Qb3 d1Q Qc8 Qh5 Nd6 Qf8 Nd2 Bf6 Qb5 Kc3 Qe6 d4 Ngf3 d3 Nf1 d2 Ne3 d1B Ne5 f1N+ Kg1 Qhh6 N5g4 Nd2 Rh2 Nf3+ Kh1 Be5 Rf2 h2 Rc2+ Kd4 Rc3 Bf6 Rac1 a1N Bb2 Nc2 Ra3+ Qc3 Qbb3 N2b4 Bf1 Ra4 Bh3 Na7 Rc2 Qh5 Bc1 Qc4 Bd2 Be5 Be1 Bg7 Bf2 Qh6 Bg1 Bf6 Rg5 Rg8 Rg6 Rg7 Rc1 Re7 Rg8 Rf7 Qe7 Bh8 Qh4 Bc6 b7 Qh5 Qe1 Qhh6 Na6 Qh5 b8B Bb7 Bc7 Qhh6 Nb8 Qh5 Kg2 h1Q+ Kf2 Qhh6 Bd8 Qh5 Qc2 Qhh6 Qce2 Qh2+ Kf1 Qe5 Kg2 Qeh5 Q2d2+ Qd3 Qef2 Nbc6 Qfe2 Ne4 Ra2 Rc4 Qde1 Nb4 Ra6 Qc2 Qh4 Kc3 Ra3+ Kb2 Kh1 Rd4 Qd3 Qb3 Rc5 Qc4 Rc7 Nc5 Qe1
3B4/1rRbp3/B1Nr1b2/nNq5/1q2k3/1QBRq1q1/1b2nn1R/QR1N1Kb1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 c4 Kf6 g4 a5 b4 h5 f5 Ke5 b6 d5 g5 h3 b7 h2 g6 h4 c5 d3 b5 h3 c6 a4 g7 d4 f6 d2+ Ke2 d3+ Kf2 a3 f7 e3+ Kf3 e2 Kf2 e1B+ Ke3 a2 c7 Bd7 c8R Qb6+ Kf3 Rh6 Qa4 d1Q+ Ne2 d2 Rc4 Ra7 Nc3 Nf6 g8R Qc5 b6 Qb3 Qa6 d1N Rg7 Ne4 Nd4 Nef2 Ke2 Nc6 b8B+ Rd6 b7 Qbb4 Bc7 Na5 b8N Rb7 Rb1 a1B Rg3 Bb2 Rd3 Bg7 f8Q Bf6 Ndb5 Bd2 Qg7 Be3 Qf7 Kf5 Bd8 Bd4 Rg1 h1Q Rg2 h2 Bd2 Qg1 Nc6 h1Q Rh2 Qf3+ Ke1 Qg5 Be2 Qh4 Kf1 Qhg3 Qg8 Qe3 Qa8 Nb3 Qa1 Na5 Qf7 Nh3 Be1 Ndf2 Nd1 Nf4 Rcc1 Ke4 Bc3 Qa3 Qb3 Qab4 Bh5 Ne2 Bg4 Be8 Bc8 Bd7 Rc2 Rb6 Ba6 Rb7 Rcc1 Qd5 Rc2 Qeg5 Rcc1 Ng4 Ne5 Bg1 Bd2 Q5e3 Rc7 Nf2 Bc3 Qdc5 Nc6
n1r4n/1nQ2b1Q/B1N2bN1/5RQr/rn4NB/r1B2K2/1R1q1pB1/2k1r1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 b6 a4 b5 h3 c5 h4 g7 a3 c6 h2 b7 f3 b6 a2 c7 f4 Bh3 d3 Qb3 Kd4 e5 d2 e6 d1N+ Kf1 f2 Ke2 f1R e7 f3+ Kd2 f2 Ke2 Nb2 e8Q Nd3 Na3 Nd7 b8B Ne7 g8N Nb4 b7 Nb6 Bf5 h3 Nc4 Be6 c8B Ra4 Qc2 Bf7 Qe4+ Kc3 Bfd7 d4 Bg4 d3+ Kf3 Kc2 Bg3 Bg7 b8Q Ng6 Nh6 Bf6 Bh4 Na8 Q8e7 Re1 Rb1 a1N Bb2 Nb3 Qbc7 Nc5 Ne2 Nb7 Nf4 Qd6 Qd5 d2 Bc3 d1R Qg5 Qd2 Rb2+ Kc1 Na5 Ra3 Rg1 h1R Nc6 h2 Bh3 Re8 Qe4 Nh8 Ng6 Ra4 Rg4 Rhg1 Rf4 h1R Bg2 Rf8 Ng4 Rh2 Bd7 Rc8 Rf5 Ra3 Qe7 Re4 Be6 Rde1 Bc4 Rd4 Ba6 Rh3+ Bg3 Rh5 Qe4 Nc2 Qd3 Rda4 Bh4 Nb4 Qdd7 Be6 Qg7 Bf7 Qh7
1BR1Rr2/7r/1Q3N2/k1n1n3/3b1NbQ/1B1b2nn/K2NpQ2/b1RqQn1n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 Kc2 Kc7 Kb3 Kb6 f5 a4+ Ka3 e3 g5 e2 f6 e1N f7 e4 g6 h3 g7 h4 Ne2 h2 Qd2 e3 Nec3 h3 Qa2 d3 Qc2 e2 Qb3 d4 Ka2 d2 Bg2 d1N Bd5 d3 Nd2 a3 Qa4 Nh6 g8N Nf5 Nf6 Bc5 f8Q Nde3 Be6 Bd4 c5+ Kb7 b6 Rh7 b5 Nf3 Bf7 Ng3 Ncd5 Na6 Nf4 Ne5 Bb3 Bg4 Rf1 h1N c6+ Kb8 c7+ Kb7 c8R h2 Rf3 Nef1 Re3 Nc5 Bb2 Qd6 Rc1 Nf2 Qa5 h1N Re4 Nf3 Ree8 Ne5 Qh6 Nh3 Qh4 Rb8 Qb4 Ka8 b7+ Ka7 b6+ Ka6 Bc3 Ra8 b8Q Qd7 Ka1 a2 b7 Qd6 Kb2 a1B+ Ka2 Qd8 Qc7 Qd5 b8Q Qd6 Nde4 d2 Qf7 d1B Nd2 Bc2 Bb2 Bd3 Qc3 Qd5 Ba3 Nb7 Bd6 Nc5 Qba7+ Kb5 Bb8 Qd7 Nb1 Qd5 Qe1 Qd6 Nd2 Qd8 Ba4+ Kb4 Qab7+ Ka5 Bb3 Ra7 Ng6 Be3 Qfd5 Bc2 Nf4 Bf2 Qbc6 Raf7 Qg2 Rf8 Nde4+ Qd2 Qg1 Bfd4 Qgf2 Bd3+ Ka3 Qc3 Nd2 Qc2 Qe6 Qd1 Ka2 Rd7 Qc6 Rh7 Qb6+
q1RBn3/N1rN4/3bNQ1Q/2B3bp/b1r1QnN1/3R4/2Bnb1k1/b1K2bn1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 e3+ Kc2 Ke4 g4 d3+ Kb2 e2 g5 e1B g6 d2 f5 a4 g7 a3+ Kc2 a2 b6 d4 c7 d3+ Kb2 Bd6 f6 Ra7 f7 Na6 f8Q Nc5 b8B Ne6 b7 Nf4 Qf7 Bh4 Qc2 d1B Ne2 Kf3 Qf6 e4 Be3 d2 Nbc3 Bh3 c8Q Bg5 Bc5 e3 Rc1 a1B+ Kb1 Rh7 Nb5 Ra4 Qce6 Rc4 Bc7 Qa8 b8N Bg2 Rg1 h1N Nd7 Nf2 Bd8 Nh3 Na7 Kf2 Qcf5 Ba4 Qfe4 d1B Nd4 e2 Rc3 e1N Bd3 Kg3 Kc1 Be2 Bc2+ Nf3 Rd1 Ng1 Rdd3 Bgf1 Qh6 Nf6 g8N Ne8 Ngf6 Kf2 Ng4+ Kg2 Qef6 Rg7 Ne6 Re7 Rb3 Rf7 Rb8 Re7 Qef5 Nd2 Rc8 Rf7 Nde5 Rb7 Nd7 Rc7 Qe4+
KQbR4/1Nrk1p1R/6Q1/1rb3RN/1R1nb1q1/B1b3BB/1bnnN3/nb6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 c4 g5 b4 a5 e4 f3 h4 a4 h5 a3 h6 a2 e5 d3 Ke3 g3 Kd4 d2 h7 g2 c5 g4 c6 f2 c7 g3 b6 Qg5 b5 Bb4 e6 Nh6 b7 Ra5 b6 Ng4 e7 Rb5 Na3 Kd7 e8N Ne3 Qh5 d1B Rh4 Bf3 Qg6 Be4 Nc4 Qg4 Ne2 g1B Ng7 g2 Nd6 Nc2+ Ke5 Bc5 Nh5 d4 Ba3 d3 Re1 Rd8 h8R a1N Rh7 d2 Rb1 d1B Rb4 Rg8 Rh3 Bh2+ Rg3 g1B Bg2 f1N Bh3 Na6 b8B Nd4 b7 Bdc2 Ba7 Be3 b8Q Bd2 Nb7 Bb1 Bb6 Bc3 Ba5 Bec2 Kd5 Nd2 Rg2 Be5 Bb6 Qf5 Rg5 Qg4 Ba7 Bb2 Bb6 Re8 Ba5 Re7 Bb6 Nf5 Ba7 Bec3 Bb6 Ke8 Kc6 Nd4+ Kd5 N4f3 Kc6 Bd6 Bf2 Bc5 Nd8 B8f5 c8R Reb7 Bg3 Nd4+ Kd5 Rc7 Rc4 Ba7+ Kd6 Bce4 Ra4 N4b3 Rd4 Nb4 Rc4 Nbc2 Rd4 Re7 Rb4 Bd7 Kc7 Bc5 Qbb6 Nbd4 Kb8 Bdf5 Qb7 Rc7 Ka8 Rc6 Qb8 Rc7+ Nb7+ Ke7 Rg8 Bc8 Re8+ Kd7 Rd8+
5Nq1/nbBQpBRr/2RQ4/4n1bN/1R1R4/2rn1nQ1/K1nk3b/1B2b2n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Kf6 f4 Kf5 c4 d5 Kc2 h5 Kb2 a5 b6 a4 c5 h3 b7 h2 c6 a3+ Kb3 a2 b5 h4 b6 h3 c7 d3 g3 d2 Bc4 e3 g4+ Ke4 f5 d4 g5 e2 f6 Ke3 f7 e1B g6 d3 g7 Nc6 b8R Nh6 g8B Bb7 c8Q Ne5 Qd7 Rh7 Na3 Nf3 Ne2 Ng4 Nb5 Bh6 f8R Nge5 Nc7 Bg5 Rg1 h1N Ng3 h2 Rf6 Nf2 Bcf7 h1N Nh5 Ra3+ Kb2 Rc3 Ne6 Qe8 Nf8 Qc8 Rb1 a1B+ Ka2 Bb2 Ra1 Ba3 Rc6 Bd6 Qb3 Qe8 Ba3 d1N Qbe6 Bc7 Qed6 d2 Rd8 Ke2 Rb1 Nfd3 Rb4 Ne3 Bg6 d1N B8f7 Kd2 Bb2 Bc8 b7 Nc2 b8Q Bb7 Ba1 Nb2 Be4 Nbc4 Bb2 N4a3 Bf5 Bf4 Rg7 Nb5 B5g6 Bg5 Bc1+ Ke2 Bf4 Na7 Bh2 Kd2 Bf5 Ng6 Qg3 Be5 Qbd6 Bef4 Bg1 Nge5 Bb6 Be3 Bc7 Bg1 Ne6 Qg8 Nf8 Bh2 Bg6 Ncd4 Bf5 Nc5 Bb1 Ncd3 Rb8 Nc2 Rd4 Bc8 Rb5 Bb7 Rbb4
3rr3/b2b1r2/n4Q2/3N1nbN/Q1Q1qBRr/1K2Bp2/R3Bnb1/3NB1nk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 g5 a5 g6 f3 b6 a4 b7 h3 g7 f2 c5 h4 c6 a3 c7 d3+ Kb3 h2 b5 h3 b6 f4 Qc2 d4 Qc6 a2 Qc4 d2 Qc3 d1R Bd3 f1R Qe1 Rh4 Qg3 Nh6 g8N Nf5 Ne2 Bd7 c8Q Qe8 Qc3 Na6 Bb5 Be7 Qf2 Bg5 Rg1 h1N Rg4 h2 Ne7 Nhg3 Be3 h1B Qc4 d3 Nbc3 d2 Ned5 Bg2 Qf3 Rde1 Nd1 Rd8 b8B+ Nd6 Rb1 a1B b7 Bd4 Ra1 Ba7 Ra2 Qe6 Bc7 Qe7 Ba5 Ndf5 Nf2 d1N b8B+ Ke6 e5 Qe8 Ng1 Ne2 Ngh3 Ng1 Bb4 Re2 Be1 Qe7 Ne4 Nf2 Nef6 Nd6 Nh5 Kf5 e6 Ke5 Nc7 Nf5 Qfc6 Qe8 e7 Qg6 Qb6 Qc6 e8Q+ Qe6 Bd4+ Ke4 Be3+ Kf3 Nd5 Qe4 Qf6 Bh1 Ng3 Kg2 Nh5+ Kh2 Bc7 Bg2 Bb8 Kh1 Bd6 f3 Bdf4 Rd2 Qee6 Rf8 Qa4 Rf7 Be2 Rd4 Bc3 Rc1 Be1 Rc8 Qec6 Rh8 Qcc4 Re8 Qab4 Nd3 Nc3 Bc6 Qa4 Rdd8 Nd5 Bb5 Rg3 Bd7 Nf2+ Kh2 Nd1 Kh1 Rg4 Nf2 Qcb5 Bf1 Qac4 Bg2 Qba4
qBn3r1/8/2r3Br/1Qb2bQ1/R1N2Knb/1RbQpNnk/1n1r4/3R1B1B b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Ke2 Kg4 c7 h4 f5 h3 f6 e4 f7 a3 Qb3 d3+ Ke1 d2+ Ke2 d1N Bd2 d4 Nf3 a2 Na3 Rh6 Nc4 Nb2 Qd3 Nd7 b8R Ndf6 b7 Bc5 f8Q Bf5 c8B Ne7 Qg8+ Rg6 Be6 Nc8 Bd5 Qa5 Rd1 a1B Rg1 h1N Bb4 Bb6 Bd6 h2 Rg2 Kh3 g4 Ra6 g5 Ng4 Qg7 Rh6 g6 Bc5 Qg8 Qa4 g7 Rc6 Bf7 Rh8 Bg6 Qa8 Qd5 Rh6 g8B Rh8 B8f7 Rd8 Qe5 Rg8 Bd5 Ng3+ Ke1 e2 Kd2 Bd7 Qg5 h1R Bf4 Bf5 Bc7 Qa3 Ra8 Qa2 b8Q Qa4 Qb5 e1B+ Kc1 Bf2 Kd2 Qa7 Rb8 Qa8 Be2 Rh2 Rb7 Rh1 Bb8 Rh2 Qc2 d3 Ra7 Rh1 Ra4 Rh2 Rgg1 Rh1 Rb1 Rh2 Rgd1 e3+ Kc3 d2 Qd3 Kg2 Be4 Rh6 Bd5 Kh3 Be4 Bd6 Kd4 Bc5+ Kd5 Nh2 Ke5 Ng4+ Kf4 Be1 Rdc1 d1R Rc3 Rd2 Rd1 Nf1 Rb3 Bh4 Ne1 Ng3 Bh1 Bf8 Nf3 Bc5 Rc1 Nd1 Rcb1 Bc3 Rc1 Nb2 Re1 Rd8 Rd1 Rg8 Bf1+
1qb1R1qQ/1n6/1NrB1Bnb/n3q1p1/2N1k3/r2R3Q/1bN1pKB1/3RR1r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 h4 Kg6 c4 Kf5 b4 a5 h5 d5 b6 e5 h6 g5 b7 a4 h7 g3 c5 e3 c6 e2 b5 d3 b6 d4 c7 a3 Qa4 a2 Qe8 g2 Rh2 e4 Bd2 Nd7 b8R Ne7 b7 Bh6 Nf3 g1R Kf2 Ra3 Bc3 d2 Bg2 d1Q Ne1 d3 Bf6 d2 Nc2 Ng6 Rh3 Nc5 Rd3 Qc1 Qf7 Qb2 Qb3 Qg8 Ra8 d1Q b8R Qe5 Nd2 Nb7 Nc4 Qb1 Ra4 Qbb2 Rad1 a1N Ra6 Qb1 Re6 Qbb2 Qc3 Nb3 Re7 N3a5 Re8 Bd7 c8N Qb1 N8b6 e1B+ Ke2 Bd2 Kf2 Bc1 Rbd8 Qb2 Re1 Bc8 Rdd1 Qbb5 R8d3 Bb2 Qb3 Qb8 Qc3 Q5e5 Qb3 Kg4 f5 Kf4 Qc3 Qf7 Qb3 Rf8 h8Q Qg8 Rdd8 Rf7 Qh3 Rc7 R8d3 Rc5 Be7 Rc7 f6 Rc6 f7 e3+ Ke2 Qc5 f8B Qd4 Bf6 Qde5 Qh1 Kf5 Bd6 Kf4 Qh5 Kf5 Kf3 e2 Kf2 Kf4 Qh4+ Kf5 Qh3+ Kf4 Rf3+ Ke4 Rfd3+
2Rnqr2/rn2b3/1qnBQ1b1/NrR1B1p1/2qN2p1/b5Nk/3K2B1/1QR4N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 h4 Kf6 b4 a5 c4 d5 b6 f3 e5+ Kf5 b7 f2+ Kd2 d3 c5 a4 c6 a3 b5 d4 c7 a2 e6 Nc6 b8Q Ra7 b6 Ba3 b7 Nge7 h5 Rf8 h6 Qe8 h7 Nd8 h8N Nec6 Bg2 f1N+ Ke1 Ne3 e7 Nc4 Nf3 Nd6 Qb3 d2+ Ke2 d1R Nbd2 g5 Qe6+ Kf4 Bb2 Kg3 Rc1 a1B Ng6 f5 Nb3 f4 Rc5 Rb1 Nge5 d3+ Kd2 Bd7 Nfd4 f3 c8R f2 Rg1 f1Q Na5 Qf6 Bc3 Rb5 Rc1 Kh4 Qf7 Bf5 Qe6 Bg6 Bb4 Qef7 e8N Qf1 Nf6 Qe8 Ne4 Qg1 Bf3 Kh3 Ng3 Qf2+ Kd1 d2 Nd3 B1b2 Bc3 Bb4 Bh1 B2a3 Bg2+ Kh4 Ba1 Qff7 Ke2 d1Q+ Ke3 Qh1 Nf2 Qg1 Bc3 Qc7 Kd2 Qf1 Nfh1 Qb6 Qa8 Qc4 b8B N6b7 Bd6 Bb2 Qb8 B4a3 Nc2 Ba1 Bg7 Bf6 Nd4 Be7 Bge5 Bh7 Qc7 Bd3 Qcd7 Bg6 Qf5 Rb3 Qde6 Rb5 Bd5 Kh3 Qb1 Nb4 Be4 Nbc6 Bg2+
4qq1B/1N2R2B/3nB2R/1b1q1pn1/1nN1rr2/1b2N2Q/1p2k3/bKBQr2R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 Kc2 h5 a4 c5 e4 b5 g4 f5 a5 f3 g5 c4 a6 h3 g6 h4 g7 f2 a7 h2 Bh3 f1B Qe2 c3 Qe3 b3+ Kd1 b2 Kc2 b4 Qg5 Ne7 g8B Nbc6 Qg4 Bg7 Ra6 Bb5 Bf1 h3 Bc4 Qe8 Nd2 b1N Bh7 Be6 Nf1 Nc8 Ne3 Nd2 Nf3 Rb8 Ne5 Nf3 a8Q b3+ Kb1 Ng5 Qa7 c2+ Ka1 Rb7 Qh5 Re7 Qc5+ Kc7 d6+ Kb7 d5 Nb4 d7 Nd6 d8B Bf6 Re1 h1R Qd4 h2 Qh3 Bg7 Rd1 Re1 Bb6 h1Q Bc5 Nc8 d6 Rg8 d7 Nd6 Rc6 Rh8 Bb6 Ka6 d8N Bd5 Nb7 Re6 Bg6 Rh4 Bh7 Rf4 Kb2 Re7 Ka1 Bg8 Be6 Qg2 N5c4 Qd2 Qe5 Qd5 Qd4 Qf8 e5 Bh8 Bd2 Re8 Rb1 c1Q Bc3 Qd1 Bb2 Qh5 Bc1 Ba4 Bd8+ Kb5 Bf6 Re7 Bg7 Qhe8 Ra6 Na2 Kb2 Kb4 Ra1 Bb5 Kb1 Bf7 Bh6 Bf6 Bg7 Bg8 Bh8 Bg7 Qb6 Kc3 Qc5 Kd3 Qd4+ Ke2 Bc8 Rd1 e6 Rdf1 Qb6 Qe5 Nd2 Nc3+ Kb2 Qef7 Bd7 Re8 e7 Nc8 Qd8 Qe4 Rh6 Qh1 Qb6 Nd5+ Qf6 Nb4 Qc3 Rd8 e8R Bf6 Re6 Q7e8 Re7 Bgc4 Be6 Rdd4 Rb1 Qd5 Ka1 Bg7 Bb2 Rde4 Rd1 Bf6 Kb1 Nd6 Bc1 Rh1 Qa1 Bc3 Qa7 Ba1 Qd4 b2 Rg1 Bb3 Ndc4 Rh2 Rd1 Rhf2 Rg1 Rf1 Rh1 Re1 Qd1+
2KBNq2/5N1k/QNbpn1B1/r4Rr1/1R1b3n/b1Q1nqrq/3B1R1p/3R4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 Kf7 Kc4 Kg7 Kd5 a5 b4 h5 g4 f3 e4 f2 c4 a4 c5 a3 c6 d3 g5 d6 b6 h3 b5 h2 b7 h4 b6 f4 g6 h3 c7 f3 e5 a2 e6 d2 e7 Bd7 e8N+ Kh6 c8Q Ra4 g7 Bc6+ Ke6 Ra5 Na3 Na6 b8R Ne7 g8R Kh7 b7 Nf5 Be2 f1Q Qe1 d1R Nc4 f2 Rg5 Nh4 Nf3 Rdd5 Rf5 Bg7 Nfe5 Rg8 Nf7 Bb2 Qc3 Rg3 Bd2 Ba3 Rd1 a1B Bh5 Rdb5 Rg1 h1Q Nb6 Qf3 Rg2 Qh1 Rh2 f1N Re2 Ne3 Rf2 Be4 Q8c4 Bc6 Q4d3 h2 Qf1 Qc8+ Ke7 Qe6+ Kd8 Nc5 Qe2 Qf6+ Kc8 Ne6 Qed3 Rc5 Qa6 Qe1 Ra8 Qh8 b8B Qf1 Bc7 Qf8 Rb8 Qh3 Bd8 Rcb5 Nd7 Re5 Rb4 Rec5 Nb6 Re5 Rff4 Reg5 Rf5 B1b2 Qcd3 Bh8 Qc3 Bd4 Bg6+
1Bb1B1r1/K1np1pR1/4Qk2/QN3r1r/Q2B1N1N/1bq1Nq2/1q5b/n4nR1 b - - 0 1 illegal: No possible last move
4qn1N/1Np2N2/2q3nQ/bn1B1b1k/b1Q2rR1/5rqB/1N1p2Q1/3rB1KR b - - 0 1 illegal: No proof kernel
5Rn1/1rQKb1Q1/B2B4/k1r1N1Q1/3n2rN/N1rQ1b2/bRq2pp1/4Rn1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 b4 f5 c4 a5 e4 d5 h4 Kd7 h5 Kc7 e5 Kb6 e6 a4 h6 g3+ Kf3 d3 e7 g4+ Kg2 d4 e8Q a3 h7 a2 Qe7 d2 Nf3 d3 Qg5 Ra3 Nh4 Be6 Rh2 Rc3 Na3 Be7 Qe2 d1R c5+ Kb7 c6+ Kb6 c7 d2 c8Q Qd3 Qf8 Nc6 Qfg7 Qc2 Qd3 Nd4 Rb1 a1R Bb2 Kb7 b6 Rc1 b5 Ba2 Be2 Rh1 Re1 Rc1 Bf1 d1B+ Be2 Ka8 b7+ Ka7 b8N Kb6 Nd7+ Ka5 b6 Rc5 b7 Rc3 b8Q Rb1 Bc1 Rb7 Rg1 Rc5 Ne5 f3+ Kf1 g2+ Kf2 f4 Re1 g1R Bd2+ Kb6 Bb4 Rc3 Bd6 Ka5 Qd2 Rg3 Ba6 Be2 Qd1 Rc5 Rg2 Rhh3 Qd3 Bd1+ Kg1 f2+ Kf1 Bf3 Qa7 Nh6 Rh2 Rg8 h8R Rgc8 Rf8 Ng8 Nhg6 Rh6 Nh4 Rc3 Rg2 R8c5 Rh2 Rg6 Qb8 Rh3 Qc8 g3 Qd7 Be2+ Kg2 f1N Qc8 Kb4 Qc7 f3+ Kg1 Bd1 Rhe2 g2 Kf2 Rh1 Rd2 Ne3 Kg3 Nf1+ Kg4 f2+ Kf4 Bf3 Rde2 Nb3 Kf5 Ka4 Q5f6 Rg3 Ke6 Rg4 Qfg5 Nd4+ Kd7 Kb4 Ra1 Ka4 Ree1 Kb4 Rab1+ Ka4 Rb6 Ka5 Rb2+
1n1RN1n1/2K3n1/R1br3b/r1Q1r3/Np2qp2/k1nn4/2BNNRQb/1BB5 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 g4 f5 e4 h5 a4 f3 d3 f2 d6 h3 g5 b3 g6 Kb4 d4 c5 a5 b2 d7 h4 g7 h2 d5 h3 a6 c4 d6 c3 a7 c2 Ne2 Rh6 Qd5 Bb7 Nd2 b1N Ra6 Qh4 d8R Nc3 d7 Rd6 Bg2 Qh7 Rf1 h1N Bf3 f4 Bh5 h2 Bg6 Ng3 Qa2 Nf6 g8B h1N Bb3 Nf5 Qb2 Ng7 Ba2+ Kc5 Bb1 Bc6 Qa2 Kb4 Qg8 Ne6 Bf5 Bh6 Qg2 Ng8 Bg6 Rd3 Bf5 Re3 Kd6 Ng7 e5 Re4 e6 Re5 Bd3 Qf5 e7 Qe4 Bb2 c1B e8N Qf3 Kc7 Qe4 Nc4 Be3 Bdc2 Bd4 Nd2 Bc5 Bc1 Be3 Re1 f1R Rd1 Rf3 Rf1 Bg1 Rf2 Rd3 Rc8 Qh7 d8Q Qe4 Qdg5 Rd6 Rd8 Bh2 Nc4 Na4 Nb2 Ka3 Qh5 b4 Qf5 Ra5 Qc5 Nc3 Qb5 Nd7 Qc5 Rb8 a8N Rb5 Nb6 Nb8 Qe3 Re5 Qc5 Nf5 Nd7 Ng7 Ndf6 Qd5 Ne4 Qc4 Rf1 Nf2 Nd2 Nd3 Rf2 Qe4 Na4+
5NbR/2nQ1B2/1kb5/1b1Rb1R1/p2n1Q1Q/1prr2qB/3rNb1B/K2n3R b - - 0 1 illegal: No proof kernel
2Rq4/1R1p1Nr1/r1B2bnn/2B2b2/QN3bQN/kb1p4/2r1RQK1/1nb3N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 b4 g5 h4 f5 c4 a5 b6 d3 h5 f3 b5 Kc5 e5 Kb4 c5 g3+ Ke3 a4 e6 f4+ Ke4 g2 b7 g4 c6 f2 e7 f3 e8N g3 c7 a3 h6 a2 h7 Nh6 b6 Ra6 Nd2 Nc6 b8Q Ne7 b7 Ng6 Rh2 Bd6 Qa7 Bf4 Nf6 Rf8 Be2 f1B h8N f2 Kf3 Rg8 Nf7 Rg7 b8Q+ Bb7+ Nde4 Qe8 c8R Qd8 Be3 Ka3 Bd4 Bd5 Rb1 a1B Rb7 Bb3 Neg5 Bb2 Nd5 Bbc1 N1h3 g1R Nb4 g2 Bc5 Rh1 Qb6 g1B Q8a7 Qe7 Qb5 Qd8 Rg2 Bgh2 Ng1 Bhg3 Rh2 Bh3 Bf1 Bg4+ Kg2 Bf5 Qg4 Bh4 N5f3 Bf6 Be2 f1N Nh4 Nd2 Bf3 Nb1 Bc6 Bce3 Kf3 Bc1 Re2 Rh3+ Kg2 Re3 Be7 Re5 Qf2 Rc5 Bf8 Rc4 Bc5 Rc2 Qa4+
K1n1RN2/prb3rQ/n1Nbb3/2R5/QB1pB1Bk/r1nN3q/RR1n4/3n4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 f5 c4 d3 b4 d2 e4 g3 h4+ Kh6 b6 g5 c5 f3 h5 g2 b5 d6 b7 f2 e5 f4 c6 f3 b6 g4 c7 Kg5 h6 g3 h7 Qf6 e6 Nh6 e7 Nf5 e8R Na6 Kc6 Rg8 h8Q Be6 c8B d5 b8R d4 Kb7 Qh6 Qh7 Ne7 Ne2 g1N Ba3 g2 Bb4 Rg7 Nf4 Qh3 Qa4 d1N Ra2 Ne2 Nd3 g1B Nd2 Bh2 Nc4 Nec3 Na5 Bc7 Bg2 f1N Nc6 f2 Be4 Nd2 Re1 f1R Bd7 Bf7 Bg4 Be6 Re2 Rf3 Rbc8 Nf1 Reb2 Nd2 Rcd8 Nc8 Rd5+ Rf5 Rc5 Bfd6 Ne7 Re5 Ng6 Rd5 Nf8 Rf5 Qg6+ Kh4 Qh7+ Rh5 Kc6 Rh6 b7 Rh5 b8N Rh6 Nbd7 Rb8 N7e5 Rh5 Bh1 Rb5 Be4 Ra5 Kb7 Rh6 Qb5 Ra3 Ka8 Rh5 Nc6 Rh6 Qg6 Rh5 Qa4 Rf5 Rc4 Rb5 Rc5 Rb7 Qh7+
rr4Q1/BN3b2/KN1bR2Q/QB2q3/2qr2k1/1nQRn2p/R1pN4/5qqq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 Ke2 a5 d4 h5 g4 f5 e5 c5 g5 h3 g6 a4 b6 c3 Kd3 h4 Kc4 a3 Kb5 a2 g7 c2 b7 c4 Qd3 f3 Ne2 f4 Nd2 f2 Nc3 h2 Na4 c3 Nb6 Nc6 b8Q f3 Qa7 h3 Qa5 Qf6 Be2 Nge7 g8Q+ Qf7 Rd1 h1Q Qg7 f1Q Qh6+ Qf6 Bb2 c1Q d5+ Kf7 d6 Ke6 d7 f2 Qf3 c2 Qc3 Kf5 d8N Be6 Nb7 Bf7 e6 Nd5 e7 Qe5 e8R Bd6 Re6 Rhb8 Bc4 Kg4 Ba3 Na7+ Ka6 Ne3 b5 Qd3 Bc5 f1Q Nd5 Nc6+ Ba7 Qde2 b6 Nd4 Bb5 Qhg1 Nc4 Nb3 Rd3 Qb1 Nd2 Qbd1 Rb1 a1R Rb2 Ra4 Ra2 Re4 Nc5 Na1 b7 Rd4 Nb6 Qc1 Nba4 Nb3 Nb6 Rf8 b8Q Re8 Qb7 Reb8 Qc8 Qh1 Nb7 Qfg1 Qab4 Qef1 Qbc5 Qc6 Q5b4 Qc4 Qa5 Qcd1 Qch8 Qdf3 Qd8 Qfh1 Qg8+
1qk2N1n/4QNb1/1nn1R1n1/1n2R3/1r4qr/1bR2p1B/BN2R1p1/2B1KQr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 Kd7 e5 f5 c5 a4 h5 g3 h6 g4 b6 a3 h7 f3 b5 f4 b7 g2 b6 a2 Qc2 d3 Rh5 d2+ Kf2 d1N+ Ke1 g3 Rh1 d4 Nd2 d3 Rh5 Bg7 Nh3 g1N Qb1 g2 Nc4 Ra4 Nb2 Nc6 b8Q Nc3 b7 Nge2 Ng5 Rb4 Qa7 Nge7 Ne6 Ng6 b8R+ Bb7 Rh3 Nb5 Nf8+ Kc7 Ra8 Qb8 e6 Kc8 e7 Ba6 Rh5 Bb7 Re5 f2+ Kd1 d2 e8R+ Kc7 R8e6 Kc8 Qd3 f3 Qb1 Nef4 Bc4 f1N Qd3 Ba6 Qe7 Bb7 Rb1 a1Q Ra3 Ba8 Rc3 Qa4+ Bb3 Bb7 Ra1 Ba6 Ra2 Bb7 Kc2 d1R Qc4 Nd2 Qf1 Nh3 Kd3 Nhf4+ Ke3 Nc4+ Kf2 Nb6 Bd5 Rg8 h8N Ba8 Nf7 Rh8 Bb3 Rh4 Bc4 Nh8 Bb3 Ncd4 c6 Nfg6 c7 Bd5 Bc4 Nc6 Bb3 Rdd4 Ke1 Bc4 Ra3 Rh1 Ba2 Rdh4 Rce3 Bd5 Re2 Rg1 Rc3 Bb3 Qf6 Kb7 c8B+ Kc7 Bd7 Kb7 Qe7 Kc7 Be8+ Kc8 Bd7+ Kb7 Qg5 Rbe4 Rd6 Qb4 Bg4 Rc4 Rde6 Kc8 Bf5 Rce4 Qe7 Qd4 Rf6+ Qd7 Bh3 Qg4 Rd6 Rb4 Rde6
1k1K4/NR5r/2R2n1B/3Q1q2/q2r2R1/b1nBpp1N/1Nrqqqb1/Q1QN4 b - - 0 1 illegal: No proof kernel
2q4k/1R1r2q1/b3qb1B/K1Q2N2/4n3/BB1pb1pb/nB2b3/2NrQRQR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 e4 Kg7 c5 d5 e5 d3 Kc3 d2 c6 a4 c7 f3 e6 a3 h5 f4 e7 f2 e8R a2 b6 g3 b7 f3 b5 d4+ Kc4 g4 b6 d3 Kb5 g2 Na3 g3 Nc4 Nf6 Ne2 g1B Nd6 Ra7 Ba3 Be7 Bg2 f1B Qe1 d1Q Nc1 f2 Bd5 Ne4 Bb3 Nc6 b8B Be2 b7 f1B h6+ Kh7 Nf5 Bh3 Rf8 Nb4 Rb1 a1Q Rf6 Be3 Rf7+ Kg6 h7 Na2 Qg1 Rf8 h8B Qe1 Bhb2 Bf6 Re7 Rf7 Rd7 Kh7 Re7 Be6 c8Q Kh8 Qc5 Qc8 Bf4 Bc4+ Kb6 Bb5 b8Q Rd7 Qe5 Ba6 Qc3 Rh7 Ka5 Rh4 Bh6 Rf4 Nh4 Rf1 Rg7 Qd2 Q3b4 Rd1 Nf5 Qc2 Qbe1 Qc4 Rg4 Q4g8 Rf4 Qg4 Rf1 Qg7 Be5 Qd4 Rb2 Qd5 Rb1 Qd6 Beb2 Qe6 Ba1 Bb2 Bc4 Bf6 Rb7 Bed4 B1b2 Be3 Bb3
2r3qN/Q3bQ2/b2nbQn1/b3N2B/1Bq5/Kp1pR1r1/2NQ3k/Rb1r3B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 a4 Kf6 c4 Kg5 g4 Kf4 f6 d5 g5 e5 f7 b5 g6 h5 g7 d3 f3 Kg3 a5 e4 a6 b3 Kc3 b2 Kb3 e3 c5 b4 f4 e2 a7 e1B c6 h3 c7 h2 f5 h4 f6 h3 Nc3 b1B Bh6 d4 Qd2 Na6 Nf3 Be7 f8Q Be6+ Nd5 Rc8 a8B Nc5+ Kb2 b3 f7 Qe8 Nb4 Nb7 Nc2 Nd6 Ka3 Qb5 Be4 Qc4 Be2 Rh7 Rf1 h1B Ne5 h2 Rf3+ Kg2 Bg5 Rh3 Re3+ Kg1 Qd8 Rg3 f8N Bg2 Bb7 h1Q Bh5 Bf1 Nfg6 Qg2 Nh8 Kh2 Qf8 Be2 Qf6 Qg1 Bh1 Qg2 Qa5 d2 Qa7 d1R Bf4 Ba5 Bg5 Nh6 g8Q Nhf5 Qgf7 Nh4 Bh6 Ng6 Bf8 Rb8 c8Q Ra8 Qd8 Rc8 Q7g7 Ne4+ Nb4 Rg4 Qe8 d3 Qef7 Bd6 Rg3 Nf4 Qfg5 Bf3 Qg7g6 Bc5 Bh6 Be7 Q6f6 Nd6 Nc2 Bb7 Rf3 Ba6 Rg3 Nh3 Qc1 Nf4 Bg5 Qg1 Bh4 Rgg8 Re3 Qg7 Be1 Qf8 Nb4 Rg3 Nc2 Qg8 Bb4 Ng6 Qd2+
bB1q1Q1r/R1Qbrr1n/B3N2r/2N3qk/r1R2bBp/4n3/2Bp4/N4RK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 h5 c4 d5 b4 f5 e4 Kf7 g5 Kg6 e5 d3 c5 a4 b6 h3 c6 d4 b5 h4 b7 h2 c7 f3 b6 a3 e6 d2 e7 f4 e8N d3 Nc3 a2 Ne4 Bd7 c8B Ra6 Ng7 Nc6 b8R Nce7 b7 Nd5 Ne6 Ne3 Ne2 Bd6 N4c5 Nf6 N2d4 Kh5 g6 Nh7 g7 Qg5 Qc2 d1Q g8B Ra4 Rg1 h1B Ndb3 Ra7 Rg4 Ra6 Rb1 a1R Ra8 R1a4 b8Q Bc7 Kg1 f2+ Kh2 Rc6 Na1 f3+ Rf4 Bg2 Ra7 Rca6 Be2 f1R Bb2 Qd2 Be5 Re1 Rc4 Qd8 Bg3 Bf4 Qc3 Rd6 Ba6 Qc1 Qa3 d2 Bd3 f2 Qc7 f1R Bc2 Ba8 Qb4 Rf3 Qbb8 Qg5 Qf8 Qb2 Rc1 Qd4 Rd1 Re2+ Kg1 Qdf6 Rf1 Qd8 Nd4 Rh6 Be6 Bd6 Bh3 Rf7 Nde6 Bf4 Bhf5 Nd5 Bh3 Re5 Bhf5 Ne3 Bh3 Re4 Bg4+ Kg6 Ng7 Be5 Qa5 Bb8 Nd3 Ree7 Ne6 Be5 Qc5 Bg7 Bc7 Be5 Bb8 Bf4 Qc7 Qa5 Bh3 Kh5 Bf5 Qd5 Ndc5 Qe5 Bh3 Qg5+ Bg4+
2Nqq2r/2R1b3/3NNr2/2q2BRk/R1Qqb1pB/1q2pQ1n/R1r5/1n2K1Q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 h4 Kg6 c4 e5 b4 d5 f5+ Kh5 c5 a5 c6 g5 f6 d3 f7 e3 c7 a4 b6 e2 b5 d2+ Kf2 e1Q+ Kg2 e4 b7 d4 b6 d3 Nf3 a3 Ra2 g3 Nc3 g4 Nd4 Nh6 Ncb5 Ra6 Ne6 Nd7 b8Q Nf6 b7 Nd5 Nd6 Be7 f8Q Nc3 Qff3 Nf7 Qde2 d1R Qa7 d2 b8R Rb6 Ra8 Bb7 c8N Ng5 Qc4 Nh3 Bd3 Nb1 Rf1 Rb2 Qg1 Rc2 Ra4 Qe2+ Rf2 Rf1 Bb2 d1Q Bf6 Qe3 Re2 Qd4 Rf2 e3 Bf5 Be4 Rd2 Qe8 Re2 Qc5 Rd2 Rc1 Rd5 Qb3 Re5 Qc7 Rc5 Qcd8 Rc7 Rc3 Qe2 Rc6 Qc4 Rc1 Bg5 Rc2+ Kf1 g2+ Ke1 Rb6 Qgf2 g1Q+ Qff1 Qh2 Qg1 Qe5 Bf6 Kh6 h5 Qc5 Bh4 Rd2 Rc2 a2 Rb2 a1Q Rba2 Qad4 Nf4 Kg7 h6+ Kf8 h7 Kg7 Ne6+ Kh6 Qc3 Kh5 Qb4 Rf8 Qc4 Rf6 h8R+ Rh6 Qfh1 Rc2 Rg8 Rh8 Qf3 Nf4 Nf7 Rh2 Neg5 Rf6 Ne6 Rc2 Nfd6 Nh3 Rg5+
b5N1/rqR3Q1/Bk2q2N/q1q1r3/R1qp2Rp/B2n2b1/3RB1n1/Kb1N2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 e4 h5 c4 f5 Kc2 d5 g4 Kd7 b4 Kc7 Kb2 a4 g5 a3+ Ka2 d3 e5 h3 e6 h4 c5 h2 c6 f3 g6 d4 g7 f2 e7 f4 e8R d2 Re4 f3 Qe2 d1B Qc4 Qe7 Qf7 Bb7 Nc3 Nh6 g8N Nd7 Qg7 Ng4 Nge2 Nde5 Ng3 Ne3 Be2 f1Q Nf5 f2 Rg4 Qe1 Nfh6 Kb6 c7 f1Q c8B Bc2 Nd1 Ng2 Rg1 Bf3 Ba6 h1Q Bb2 Qa7 Rc1 Nd3 Ka1 a2 Ba3 Bb1 Rc7 Qh3 Rh1 Qb7 Rh2 Rh7 Bb2 Bd6 Ba3 Ne3 Rf2 Re8 Rh2 Bg3 Rg2 Re5 Rf2 Ka7 b6+ Ka8 b5 Qb4 Rh2 Qc5 Rg2 Be4 Rh2 Qf7 Rf2 Qfc4 Rh2 Qbd5 b7+ Ka7 b8R+ Qb7 Ra8+ Kb6 Rf2 Ng2 Ra7 Ka5 b6 Bc6 Rg5 Qhe6 Rg4 Qb8 b7 Kb6 Ra8 Qbc8 b8Q+ Qb7 Qa7+ Ka5 Qf7 Qed6 Re7 Qbd7 Bb4+ Ka4 Bb5+ Kb3 Bf3 Q5d5 Rd2 Q5c5 Be2 Q6e6 Qf1 Qc8 Qd7 Qa6 Ra7 Ba8 Qg1 Qab6 Ra5 Rf7 Ba6 Rh7 Rb5 Ka4 Rf7 Qa5 Ba3 Rg7 Bc1 Qab6 Rb4+ Ka5 Qa7 Rg6 Rh7 Rg7 Qe7 Rf7 Qf6 Rb7 Rc7 Ra7 Qg7 Qb7 Bb2 Q4d5 Rc4 Kb6 Bc1 Ndf4 Kb2 a1Q+ Kb3 Qa4+ Kb2 Qaa5 Ra4 Qdc4 Ka1 Nd3 Ba3
b3q2b/1N5q/2brB1Q1/N1NQ3b/N1pr2nB/5RBk/1n1p2Q1/1bnR2K1 b - - 0 1 illegal: No proof kernel
1Q1N4/1Rq1Q2B/1r1rp3/qBbr1nnQ/R1KBbn2/5n2/2n1p2N/QN4k1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 a5 g5 a4 c3 a3 g6 h3 g7 a2 b6 d3 f6 e3+ Ke1 Ke4 c4 d5 f7 h2 b7 d2+ Ke2 h4 c5 e6 c6 h3 b5 d4 b6 Ra5 c7 Nh6 g8B Nc6 b8Q Bb7 c8N Bc5 f8Q Ne5 Qa4 d1N Qfe8 Nf2 Qab5 d3+ Ke1 e2 Kd2 Nhf7 Kc3 d2 Nd6+ Ke3 Qf8 Be4 b7 Nf3 Qb2 Qc7 Bg2 N7g5 Qbd8 Nd3 b8Q Kf2 Kc4 d1R Nb7 Nf4 Bh7 Rd6 Qf5 Raa6 Qfe5 Rab6 Qe7 Rhd8 Bd2 Rd5 Bc3 R8d6 Nd8 Qc8 Na3 Qc7 Rb1 a1N Bd4+ Kg3 Qb5 Nc2 Qbe8 Rb5 Qh5 Rbb6 Bc3 Kf2 Rb5 Bf5 Nb1 Be4 Bd4+ Ne3+ Kc3 Nh4 Qd7 Rb7 Bf5 Bc2 Na3 Bd3 Qeh8 Re5 Bh7 Bf5 Nf3 Bc2 Rd1 h1Q Rg1 h2 Q8e8 Rf5 Rd1 Qe1+ Rd2 h1N Qde7 Ng3 Nh2 Kg1 Bc6 Rfd5 Nb1 Ngf5 Rb2 Ra7 Rb7 Be4 Kb3 Ra1 Ra2 Nhf3 Ba4 Qd2 Qb5 Qe1 Qa6 Qd2 Bb5 Qe1 Bb2 Nc2 Kc4 Qd2 Qaa8 Qe1 Raa7 Raa6 Bg7 Rab6 Bd4+ Kh1 Ra1 Qd2 Qa2 Qa5 Qb2 Kg2 Ra4 Kh1 Qa1 Kg2 Bb2 Kg1 Bd4+
1Qqn1nq1/3b4/b1pB2p1/2R2N1N/b1q1r3/5N2/k1rQ1BBb/2NbRQ1K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 a4 Kc5 h4 Kc4 d4 f5 a5 b5 a6 b3 h5 b2 h6 c6 d6 b4 d7 f3+ Kh2 f4 d5 b3 a7 f2 h7 g3+ Kg2 Bd6 Nc3 b1B Ra5 b2 Na2 Nh6 Be3 Nf7 Nf3 Bc2 Nc1 Re8 h8B b1B Rc5+ Kb4 Rg1 Ka3 Kh1 Re4 Bg2 f1B Bf2 Ba4 e3 g6 Be5 Bfa6 Re1 Qg8 d8N Bd7 Ne6 Nd8 Ned4 Bbc2 Nf5 Bcb3 Qe2 Bd1 Qf1 Bc7 Nb3 Ka2 d6 Rc4 e4 Rc2 Ng1 f3 Nc1+ Ka3 Bf4 Kb2 e5 Kb1 B2e3 f2 e6 Ka1 e7 Kb2 Qe2 f1Q e8N Ka3 Qf2 Qfc4 Nf6 Kb2 Qf1 Ka1 Bd5 Kb1 Nf3 g2+ Kh2 Kb2 Bf2 Ka1 Nh5 g1Q+ Kh3 Qg4+ Kh2 Be6 Kh1 Nd7 Be4 Nf8 d7 Rb8 a8Q Rb4 Qb8 Bd6 Bd2 Bh2 Bf4 Qh3 Bd6 Qg4 Nd3 Ka2 Bd5 Nb7 d8Q Bd7 Qg5 Nd8 Qd2 Qb3 Ndf4 Re4 Ne2 Qc4 Ng5 Re7 Bg2 Re4 Nf3 Be8 Nfg7 Qc8 Nf5 Bd7 Nc1+
RBB2RNr/2B3Kp/q1r1r3/1Q4kb/2N1nR2/N1pR1rr1/1n1Q1b2/6qb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 b4 a5 g4 h3 d4 h2 b6 f3 b5 f2 b7 c3 d5 c4 d6 c2 b6 a4 e3 a3 d7 a2 Qd2 Ra3 Nf3 Nc6 b8Q Na5 b7 Qb6 d8R Qa6 Rd3 Bc5 Bh3 f1Q Ne5 Kg5 Rg1 Qf2 Rf1 Qg1 Rf4 f5+ Kd5 h1B+ e4 Rc3 Na3 Bf2 Bb2 Rb3 Bd4 c1R Bb6 Re1 Bc7 c3 Nec4 Nf6+ Ke5 Rb6 Rd8 Re2 Rd3 Rc6 Rf1 Be6 Qe8 a1R b8B Bf7 Qd7 Kg6 g5 Kh5 g6 Kg5 g7 Bh5 g8N Re3 Rd5 Rg3 Rd3 Re1 Qd5 Ree3 Qb5 Ref3 Rh4+ f4 Bc8 Re3 Ra1 f3 Rf4 Re2 Rf1 Bb6 Ra1 f2 Ra2 f1R Ra1 Rc5+ Ke6 Rff3 e5 Ne4 Ra2 Bg4+ Kf7 Rc6 Kg7 Bh5 e6+ Bc5 e7 Re1 Qa4 Bf2 e8R Re2 Ref8 Re1 Ne5 Nc4 Qb5 Nb2 Nec4+ Nc5 Nb1 Ree6 Ra5 Qd1 Nba3 Qg1 Ne5 Ne4 Ra4 Qb6 Ra8 Qa6 Nec4+
1QQ1rqR1/B2B1np1/4RBQq/2rRbb2/n6n/K4p2/2BNr3/kr1r3N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 h4 Kc5 c4 Kb4 Kc2 f5 h5 a5 b3 d5 Kb2 g3 c5 d3 h6 g2 h7 a4 b6 d2 b7 a3+ Ka2 f3 c6 d4 c7 f4 e5 d3 e6 f2 e7 Qd6 e8Q Na6 b8B Qh6 Qf3 d1R Qd5 d2 Qd6+ Nc5 Rh5 Bf5 c8B Ra5 Bd7 Re1 Ba7 d1R Nh3 g1N Qdg6 Bd6 Qc8 Na4 Nd2 Nf3 Bb2 Rc5 Bf6 Be5 Bd3 Kc3 b4 f1Q b5 Nh4 b6 Re2 b7 Qf3 b8Q Qa8 Qbc7 f3 Nf2 Qb8 Q7b7 Qd6 Qbb8 Qf8 Nh1 Rb1 B3b5 Rd1 Rb1 Kc2 Rb2+ Kc1 Kb3 a2 Bd3 a1R Bc2 Rb1 Ka3 Ne7 Qg2 Nc6 Qg6 Nd8 Rb6 Nf7 Rc6 Qe7 Rg5 Re8 h8R Qf8 Rg8 Ra1+ Kb4 Kb2 Re6 Rab1 Rh5 Ka1+ Ka3 Rb2 Rg5 Rb7 Rg4 Rb2 Rd4 Rbb1 Rd5
4B1B1/4q1p1/1K2B1nR/1nR3rn/1r1bqp2/1n1b2B1/R1Q2N2/QQNrk1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 f5 h5 a5 c3 a4 h6 f3 h7 g3 e3 a3 b6 d5+ Kb5 d3 c4 d4 c5 f2 b7 d2 c6 a2 c7 d3 Qc2 d1Q Rh5 g2 Ne2 Kf3 e4 g1N e5 d2 e6 Ne7 Kb6 Ra5 b5 Nbc6 b8Q Qe1 Nbc3 d1R Qa8 Ng6 e7 Ba6 e8B Qe7 Ne4 Nd4 c8B f4 Be3 Ra4 Nc1 Rb4 Bc4 f1N Bg8 Ng3 Rc5 Nh5 Nf2+ Kg3 Bd2 Q1e4 Bce6 Kg2 Be1 Kf1 Rb1 a1N Rb2 Nab3 Ra2 Bb7 Qa3 Bd5 Qab2 Bc4 Qa1 Bd3 Nh3 Qe3 Bg3 Qe4 Nf2 Ke1 Ka6 Rc4 b6 Nb5 b7 Rb4 b8Q Qh4 Rc7 Bc5 Qb7 Be3 Rc5 Bd4 Kb6 Qf6 Bgf7 Rf8 h8R Qe7 Bg8 Rf5 Rh6 Rd5 Qa7 Rf5 Qab1 Rg5 Qa3 Qd7 Qab2 Qe7 Q2a1
2n2r2/BQ1p1q1B/3knbr1/1R3B2/BR3rrb/3r2pR/K1b2q2/N1N1Q1N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 a5 h4 g5 c4 f5 Kc2 d3+ Kb3 f3 b6 d2 c5 f2 e5 g3 b7 f4 h5 g4 c6 a4+ Ka2 g2 b4 f3 c7 a3 h6 g3 b5 Nf6 e6 Nh7 b6 Bg7 Bb5 f1R Ba4 f2 Qe1 d1R Nd2 Nf8 h7 Qe8 Rh3 Qf7 Nb3 Nc6 b8Q Bf6 b7 Bh4 Rb1 Na7 Be3 Rd3 Na1 Kd6 Rb5 Rg8 h8N Rg5 Ng6 Rg4 Nf4 Rg6 Nge2 g1Q Nc1 Qh2 Rb4 Rh1 Bb6 f1R+ Nfe2 Rf4 Bf2 Rf1 Ng1 Rc4 e7 Ne6 e8B Rcg4 Nge2 Qg1 Bb6 Qd4 Ng1 Rff4 Rb5 Nc6 Qa7 Ne7 b8R Ba6 Qb7 Nc8 Rb4 Bb5 Ba7 Bc6 Rb5 Bf3 Rb4 Bd1 Rb5 Bc2 Rb4 Qf8 Bf7 Qfg7 Bg8 Qf2 Bh7 Qg8 Qf3 Qf7 R8b5 Ne7 c8B Rb8 Ba6 Rf8 Qg2 Nc8 Nab3 Bd8 Qb7 Bh4 Ka1 a2 Kb2 a1B+ Ka2 Bg7 Na1 Rd2 Rg5 Rd5 Bd3 Bf6 Re5 Rdd4 Bf5 Rd3 Reb5
k2nB1bB/b1p3pQ/1n1nR3/1Q1qn1nK/1R4NB/5qQr/N7/q2rN1Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 f5 b4 a5 h4 a4 d4 f3 Kg3 f2 h5 a3 b6 Kc6 h6 Kb7 b5 a2 h7 c3 d5 c2 e5 Qg5 e6 Bb4 e7 Be6 e8N Nh6 d6 Nf7 d7 Nd6 d8Q Bg8 Nc3 Nc6 Rh4 Bc5 Nf3 Ra5 Bb2 c1N Nf6 Nd3 Ne1 Nde5 Rh6 Ra8 Rb1 a1Q Na2 Ra7 Qe8 Nd8 Qh5 Ka8 Bc4 f1Q Bf7 Ra4 Be8 Rd4 Qd3 Qd2 Kh4 g3+ Ng4 g2 Qg3 g1N Re6 f4 Qg6 f3 Kh5 f2 b7+ Ka7 Bc3 Nh3 Rb4 Ng5 Qb1 Qfd3 Qc2 f1N b6+ Ka6 b8Q Ne3 b7 Ba7 Qa8 Nd5 b8Q Nb6 Qh1 Qf3 Qhg1 Qdg2 Qe4 Rd1 Bd4 Qd2 Bf2 Qd5 Qb7+ Ka5 Qc6 Ka6 Qb5+ Kb7 Qc2 Ka8 Qcd3 Bf7+ Qg6 Rf8 h8B Bg8 Qh7 Rf4 Rb2 Ra4 Rb1 Ra3 Rb4 Qdd4 Qh4 Qb7 Nh6 Rh3 Ng4 Qf3 Bg3 Qdd5 Bf2 Rg3 Qhh2 Rh3+ Bh4 Qf5 Qgg3 Qff3 Qhg1
6bn/bkn1nR1N/2Q3n1/n7/4RQ1q/2r1p1Np/QRr1n1nK/2B1NB1Q b - - 0 1 illegal: No possible last move
Bk6/2rq1nRK/bbn2q1B/5Bq1/N1r3Q1/2p1N2p/QNNR2rr/1R5n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 g4 f3 e4 c3 d4 a4 b4 f2 b6 f6 Kg6 c4 e5 a3 b7 Kc7 e6 h3 e7 h2 e8B a2 g5 h4 b5 c2 d5 f5 b6+ Kd6 Bc6 c3 Bh3 f1N Ne2 f4 Rg1 h1Q Bf5 f3 Na3 f2 Nf4 h3 Nd3 Qg2 Nb2 Ra6 Qg4 Nh6 Rb1 Rg8+ Kh7 a1R g6 Ra7 g7 Nf7 Bh6 c1R Nc2 Qd7 Ne3 Qg3 Rg2 R1a4 Rg1 Rc4 Rg2 Na6 b8N Rc2 b7 Nb4 Na6 Qh4 b8Q+ Rc7 Qa8 Qg5 Nc5 Ba6 Nca4 Ng3 Qa7 f1Q Ba8 Nc6 Rd2 Ke5 d6 Nh1 Rd3 Rh2 Rd2 Qdd8 d7 Bc5 Bc2 Qe8 d8N Qd7 Bf5 Bb6 Ne6 Qff4 Nd4 Kd6 Ndc2+ Qd4 Re2 Qdf6 Rg2 Rb7 Rf2 Kc7 Rd2 Kc8 Qf3 Rc7 Qg4 Bb7 Qa6 Kb8 Qa5 Ba6 Qd5 Rgc8 g8R Re8 Rg7 Ree4 Nf1 Ree2 Nfe3 Reg2 Qe6 Rd4 Qb3 Rc4 Qa2
2b1B3/b3NQq1/k1R1q2N/1n4n1/2Q1Q2p/B4Rp1/rRKbRrn1/1B3q1n b - - 0 1 illegal: No proof kernel
2n2bBR/4q2B/1r3q1r/1BkNrqBN/4pQ1n/p4R1N/R2rQ3/1b1b3K b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 Ke7 g4 Kd6 Kg2 e3 g5 h3+ Kh2 a4 g6 d3 g7 a3 b6 e2 b5 e1R f5 h4 f6 d2 f7 Ne7 g8B Kc5 b7 d5 b6 d4 Bb2 d3 Nf3 Ra6 Ng1 Nd7 b8Q Nf5 b7 Qf6 Qe2 d1R Bc1 d2 Ra2 Rb6 Nc3 Rh6 Nd5 Qe7 Qa8 Qf6 b8N Qe7 Qa4 Bb7 Nc7 Be4 Nd5 Bb1 Bh7 Rb3 Bg8 Nb6 Bh7 Nc8 Nd7+ Kd6 N7f6 Rb6 Nh5 Kc5 Nf3 Qf6 Ng5 Qe7 Kg1 h2+ Kg2 Qf6 Nh3 Qe7 Rg1 Qf6 Kh1 Qe7 Rg8 Qf6 Rh8 Qe7 Kg2 h1Q+ Kf2 Qf3+ Kg1 Qg4+ Kh1 Qg6 Qf3 Re3 Qe2 Qgf6 Bg8 Re1 Bh7 d1B Bd2 Rd3 Bg5 Rd2 Bg8 Ne3 Bh7 Ng2 Qb4+ Kc6 c5 Qf5 Qf4 Qff6 Ng1 h3 Bg8 h2 Nh3 Nh4 Bh7 Kd7 c6+ Kd6 c7 Kc5 Bg8 Bg7 f8R Qf5 Rf6 Bf8 Bh7 e4 Nb4 Qg6 Qa6 Qe6 Qg4 Rd5 Rf3 Rf5 Nd5 Re2 Qg3 Qef6 Qg4 Nd6 c8B Rd2 Be6 Nc8 Qd3 Bb3 Beg8 Bd1 Rf4 Qgf7 Qdf3 Qd7 Bb5 Qde7 Qe2 Re5 Qgf3 Ng6 Kg2 h1Q+ Kf2 Qe1+ Kg2 Qf2+ Kh1 Nh4 Qg4 Ng2 Qg3 Nh4 Rf5 Qf4 Qgh2 Qg4 Rf3 Qgf5 Qf4
nnrR1kbN/Q1Q2B2/1B3n2/1nq4R/2pb2q1/rqp2N1Q/4rB1N/1QK5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 h5 e4 f5 d4 c5 Kd2 a5 g4 h3 b6 h2 e5 c3+ Kc2 f3 b5 h4 e6 h3 d5 a4 e7 f2 g5 c4 g6 f4 d6 a3 g7 a2 b7 f3 b6 Qc7 Be3 Be6 Bd4 Ra3 Bg2 f1N Kc1 f2 Bd5 Qc5 Nf3 Nf6 g8Q Ne3 Qg3 f1Q Nbd2 Qg2 Nf1 Bg7 d7+ Kf7 e8N Kf8 d8Q Bg8 Bf7 Ned5 Bf2 Nc7 Q1d3 Qg1 Qb1 Na8 Qdc7 Qg2 Nd6 Qg1 Qh4 Qg4 Rg1 h1Q N1h2 Qhg2 Rd1 Q2g3 Qh5 Qge5 Rd3 Qb5 Qh6 Qec5 Rd5 Qb3 Rh5 Nh7 Qe6 Bd4 Qe3 Na6 b8B Nf6 Ba7 Nb8 Nf1 h2 b7 h1N Bb6 Ng3 N1h2 Nf5 Qed3 Ne7 Qf1 Nc8 Qh3 Na7 Be1 Nb5 Bf2 Na6 b8Q+ Qc8 Qbb7 Nb8 Qa7 Qe6 Qe4 Qg4 Rb1 a1R Qeb7 R1a2 Rb2 Qd5 Rd2 Qdf5 Qe4 Rb2 Qb1 Qc5 Qab7 Kg7 Rh6 Bh7 Qa7 Rc8 Rh5 Kf8 Bg8 Be5 Nf7 Rba2 Rd5 Re2 Nh8 Bd4 Bf7 Bg8 Rd8+
QNb4K/n5rQ/1N1n1BBB/1q6/b1pn2p1/k2B1R1Q/1nN5/r2R1qbr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 b4 a5 d5 g5 b6 f3 Ke3 g3 b5 a4 h5 g2 h6 a3 b7 a2 h7 f2 b6 g4 Kf4 c3 Rh3 c2 Nd2 Nc6 b8N Ra7 b7 Nge7 Kg5 f4 Kf6 f3 Bd3 f1Q Ne2 g1N Nd4 f2 Rf3 Qd7 Kf7 Ne2 e5+ Kc7 d6+ Kb6 e6 Ka5 Rb1 Ka4 Nc4 a1R Bh6 Nf5+ e7 Bg7 Nb6+ Ka3 Kg6 c1N e8B Be5 Bf7 Bh2 Qc2 Bg1 Kf6 Qe8 d7 Nd6 Kg7 c4 d8B Qe5+ Bf6 Qb5 Be4+ Nd3 Re1 Qa6 Rd1 Qb5 Ne6 Ned4 Bfg6 Qe1 Bef5 f1B Qh2 Bg2 Qh3 Qf1 Be4 Nb3 Nd4 Nb2 Bd3 Bh1 N8d7 Bg2 b8Q Rc7 Qa8+ Na7 Nf5 Nd4 Ne3 Rc5 Nb8 Rg5 Rf5 Bc6 Rf3 Rf8 h8Q Rg8+ Kh7 Rh5 Qg7 Rh4 Qf7 Rg7+ Kh8 Rh5 Qg3 Rh1 Qh3 Qb4 Qg8 Ba4 Qh7 Qb5 Nc2+
rbBR4/N3knRn/Q5b1/Nn1qq2q/2ppQ1rN/Qr2B3/8/qN1KR3 b - - 0 1 illegal: No proof kernel
1k2N2n/3Q1b2/rNN1nrB1/r2Q1nbQ/1p2qBb1/2pq1R2/N1BR2K1/n7 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 c5 g4 Kc7 e4 b5 a4 f5 g5 h5 a5 f3 g6 b3 g7 b4 a6 f4 e5 c4 e6 h3 a7 h4 e7 h2 e8Q c3 Qh5 b2 Qa4 h3 Qb5 Na6 Bd3 Be7 Bc2 Rh6 Ne2 Bg5 Rd1 h1B Rd2 h2 Na3 b1N Nc4 Bg4 Nb6 Ne7 g8B Na3 Bf7 Nc5 Bfg6 Ne6 d6+ Kb7 Kf1 f2 d7 Bd5 Qc4 Qe8 d8Q h1N Qd3 Ba2 d5 Ng3+ Kg2 f1R d6 Ngf5 Qd5+ Qc6 d7 f3+ Kh2 f2 Kg2 Bb3 Qe8 Kc7 d8N Qc4 Nc6 Qe4+ Kh2 Ba2 Ne5 Bb3 Ra2 Bc4 Rd3 Bb3 Bf4 Ra1 Re3 f1Q Nc1 Qfd3 Qa4 Rf8 a8N+ Kb8 Rb2 Rf6 Na2 Bc4 Qad7 Bb3 Bh7 Ng6 Nc7 Nh8 Rf3 Rhg6 Kg2 Rh6 Bb1 Nc2 Bg6 Bc4 Ne8 Bb3 Nc1 Ra5 Na2 Na1 Rd2 Neg7 Qd4 Bf7 Q4d5 Ne6 Bc2 Nd8 Na4 Rfa6 Nb6 Ne6 Bh7 Rf6 Bg6 Qdc4 Qh3 Qb5 Qh5 Qbd3 Nc6#
n4q1N/Q1Q5/nb1NB3/R1q3p1/1R2nprk/RrBqb3/4B1bK/1NR3n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kf6 c4 Kg5 e4 d5 b4 f5 h3 a5 b6 g3 b5 d3 c5 d2 c6 a4 e5 a3 e6 d4 e7 d3 e8N a2 c7 Na6 b7 Kh4 b8R g5 b6 Qd6 b7 Nf6 Qf3 d1Q Rh2 d2 Ba3 Ne4 Rh1 Qc5 Qf2 Rh7 Ne2 f3+ Kg1 Rd7 Qe3 g2 Nd6 f2+ Kh2 g1N Bb2 Be7 Qd4 Bd8 Nf4 Qb3 Be2 d1N Qa4 f1Q Bc3 Nb2 Qc6 Rf7 Qb6 Bd7 c8B Na4 Qc7 Bc6 Be6 Ra7 Ra8 Nb6 b8Q Rb7 Qa7 Qbc4 Rb8 Qd3 Ra8 Qff3 Rb8 Na8 Ng6+ Kh5 h4 Rb3 Nh8 Re7 Qcb7 Bb6 Qc7 Kg4 h5 Kh4 h6 Rd7 Ndf7 Rd4 h7 Qf1 Nd6 Rc4 Nd2 Rd4 Rc1 a1B Nb1 Rc4 Bd2 Bd4 Bc3 Be3 Rb7 Nh3 Rg1 Rcb4 Rg3 Ng1 Rf3 Nf6 Rg3 Bg2 Rf3 Rg4 Rb8 Ba5 Rb4 Bb6 Rg3 Bd4 Re3 Qf3 Re5 Be3 Rd5 Ne4 Re5 Qcc4 Ra5 Qc5 Ra3 f4 Qc6 N8c7 Qb8 Nf2 Nhf7 Qfe4 Qbb7 Nb8 h8R+ Qh7 Rc8 Ne4 Nh8 Qe7 Qd7 Qf8 Qf7 Qcc4 Qa7 Na8 Rc5 Na6 Rca5 Qc5 Qfc7
N3N1Q1/nBb5/B2br3/5p2/pr1N1Qqn/kRQr4/b5RK/B2nqQ1b b - - 0 1 illegal: No possible last move, all moves rejected
Br3Q2/Q1rR4/6n1/bqRpk1n1/1q3bN1/3Bq3/2R1pbbB/KNN1n1B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 a5 Kc2 h5 b4 d5 Kb2 h3 g4 h2 c5 e3 f5+ Ke5 b6 d3 g5 a4 c6 a3+ Ka2 h4 c7 h3 f6 d2 f7 e2 b7 e1B g6 Qd6 b5 Nh6 b6 Rh7 g7 Bf2 g8R Nd7 b8B Qb4 Qc2 d1N b7 Nb2 Be3 Nd3 Bg2 Ne1 Bba7 Rb8 Rg3 e6 Bf3 Bd6 f8Q Nf7 Qc5 Ng5 Ne2 Rg7 Rhg1 h1Q Nc1 h2 Be4 Qf3 R3g2 h1Q Bd3 Rh7 Bd2 Qe3 Qa5 Rg7 Bb6 Qh5 Qa7 Qe8 Rh1 Rh7 Rh4 Rf7 Rc4 Rh7 Rc5 Rf7 Qg8 Nf8 Rh2 Ng6 Qf8 Bd7 c8B Bb5 Rh7 Rc7 Bd7 Ba6 Bc6 Bb5 Rd7 Ba6 Bc2 Bf1 Bd3 Bg2 Rc2 Qb5 Bc5 Qe7 Bb6 Bb4 Bc5 Ba5 Bb6 Rd8 b8N Qeb4 Ba8 Re8 Na6 Rec8 Nc5 Re8 Ne4 Rb8 Nbc3 Q4a4 Rb1 Qab4 Ka1 a2 Nf6 Rcb7 Rb3 Rc7 Kb2 a1B+ Ka2 Ne4 Nb1 Ng5 Ra3 Bd4 Rac3 Bg3 Ka1 Bf4 Bb7 Qf3 Bc6 Bf2 Ba8 Qe3 Rc5 Kd4 Nh5 e5 Nf6 e4 Ng4 Qe2 Bc4 e3 Bc3+ Ke4 Be5 Qed2 Bd6 e2 Bd3+ Kd4 Be7 Qe3 Bd8 Ngf3 Bh4 Ng5 Bg3 Qe8 Bh2 Qe3 Bc4 Ke4 Bd3+ Kf3 Bc6 Bg1 Bc4 Ke4 Ba8 Qg3 Rc6 Qgb3 Bf2 Qe3 Rc5 Kd4 Nh6 Ke5 Bd3 Qee4 Bh4 Be3 Bf2 Qf3 Bfg1 Bf2 Qb6 Qh3 Qa7 Qe3 Ng4+
1r1n1bn1/K2QR1r1/R2Bqq1R/q1pr1N2/Nk4NR/2p5/2b3Bn/r2QQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 b4 a5 d4 f5 e4 h5 g5 a4 d5 c6 b6 f3 Ke3 a3 Kd4 f2 g6 h3 b5 f4 e5+ Kd7 d6 f3 Kc5 h2 b7 a2 b6 h4 g7 h3 e6+ Ke8 e7 Kd7 e8R Rh7 Bg2 f1N Nc3 f2 Na4 c3 Nf3 Qf6 Nd4 Qe6 Ba3 Rh5+ Kb4 Rd5 Nf5 Ra7 Rc1 a1R Re7+ Kd8 d7 c5+ Kb5 Nc6 b8Q Rb7 Qe5 Rb8 Qee1 Bb7 Rb1 Bc8 b7 Kc7 Ka6 Nd8+ Ka7 Kc6 Bb4 Kb5 Ba5+ Kc4 Rc1 Kb5 Bc7 Kb4 Rg1 h1Q Bd6 Qh2 Rh1 Qhe5 Rc2 Q5f6 Ra2 Nh2 Ra3 f1R Ra2 Nf7 d8Q Rg1 Qd7 Nd8 Be4 Nh6 g8N Rg5 Bg2 Rg7 Qe8 Bd7 Ra3 Bb5 Qd7 Bd3 Ra2 Bc2 Ra3 Qh4 Nf6 Ng8 Ng4 Qh8 Nb2 Qhh6 Ra6 Qhf6 Na4 Nf3 Rf1 h2 Rf2 h1Q Rd2 Nh2 Rd4+ Kb3 Rf4 Qf1 Re4 Qb5 Rd4 Rc8 b8R Qb4 Rbb6 Rb8 Rd3 Ka3 Rh3 Qa5 Rh6 Rf7 Rb4 Rg7 Rc4 Kb3 Nge3 Ka3 Rch4 Kb3 Ng4 Ka3 Qc8 Kb4 Qd7
2KBB1q1/q2BQn2/2bQn2n/2pNrb1q/1p1R4/N2Rb1R1/q1N1N1rk/8 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 h5 e4 c5+ Kc4 Ke5 Kb5 b3 a4 h3 g4 b2 g5 h4 d6 h2 d7 f3 g6 Kf4 d4+ Kg3 e5 f2 g7 f4 d5 f3 e6 h3 a5 Na6 e7 Nh6 e8B Nc7+ Kb6 Nf7 a6 Rh5 a7 Re5 Na3 b1Q+ Bb5 f1Q d6 f2 Bg5 Qa2 g8R Bh6 Ne2+ Kg2 Qe1 Rb8 a8N Ne6+ Ka7 b6 Ba4 b5 Rd1 b4 Nc7 Qg1 Rg6 f1N Rd3 Ne3 Nd5 Nf5 Rg7 Qf6 d8Q Qe7+ d7 Rb6 Bf6+ Bg5 Qc7 N5h6 d8N Rc6 Kb8 Bd7 Ng3 Be3 Qd6 Ra6 Rg4 Bc6 Kc8 Qa7 Rgd4 Ra5 Ne7 Be4 Bad7 Bf5 Ndc6 Ra4 Nc2 Ra3 Na5 Rb3 Ne2 Rb2 Na3 Rc2 Nac6 Rd2 Nc3 Rf2 Ned5 Kg3 Qc1 Rg2 Ne2+ Kf3 Qb2 Rg8 Re4 Kg2 Nb6 Rg5 Qf8 Rg6 Qd4 Rg8 Bd8 Rg4 Qdd6 Rg8 Nc1 Kg3 Rc4 Qgg2 Rhd1 h1B Rg1 h2 Ne2+ Kh3 Rf4 Qg7 Ncd4 Bc6 Rg6 h1Q Ndc2 Qf3 Rc4 Kh2 Qfe7 Qh5 Rcd4 Qh7 Rg1 Rg5 Nd5 Qg8 Rf1 Rg4 Rf3 Rg2 Rg3
rbR4N/RB1Q4/K2nq3/1Qpp1b2/4N1rq/N2r1B2/1q1B2k1/1nNnQ1q1 b - - 0 1 illegal: No proof kernel
n2rN3/k3n1nR/2r1Q3/p1n1b1K1/6B1/1N4p1/B3bRQq/BqBQRqr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 d5 e4 Kd7 c4 Kc7 e5 Kb6 e6 f5 h5 f3 c5+ Ka7 e7 g3 e8B g4 h6 g2 c6 f2 h7 f4 c7 f3 Rh6 d3 Ke3 d2 Kf4 g3 Ne2 g1R Nd4 Nd7 Bg6 Ne7 Kg5 Nc5 Bc4 f1Q Bh5 f2 Nb3 d4 Nc3 d3 Bg4 Bg7 Nd5 Be5 Nf6 Ba6 Ne8 Rc8 Rh2 Rf8 h8B Qd5 Rh1 Qdg2 Rh7 Qh2 Bd5 Rd8 c8Q Rf6 Qe6 Qe1 Ra2 f1N Bc4 Ne3 Ra1 Qf1 b6+ Ka8 b5 N3f5 b7+ Ka7 b8R Ng7 Nd4 Rh6 Ba2 Rf6 Nb3 Rh6 Qf3 d1N Qg2 Ne3 Rc8 N3d5 b6+ Kb7 Rc6 d2 Rc7+ Kb8 b7 d1Q Rd7 Nb6 Rd2 Bb5 Rf2 Ka7 Rb1 Be2 b8Q+ Ka6 Qbd6 Ka7 Ra1 Qc2 Qd1 Na8 Qc4 Rc6 Qe6 Nh5 Bf6 Ng7 Rb1 Bc7 Ba1 Be5 Rb2 Qb1 Rd2 Bb5 Rde2 Bd3 Re1 Bc4 Bd4 Be2 Ba1
r1nkQ1K1/1QNBqR2/1R2b2p/B2r4/1QNp1rBR/1B6/1b6/q1n2nrq b - - 0 1 illegal: No possible last move, all moves rejected
4nn2/qN2Kb1b/q6p/rk2pQ2/4Q3/NN5n/R1Qr1BRb/RBq2bR1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 e5 g4 d5 b4 Kd7 f4 a5 c4 e3 Kf3 d3 g5 d2 Kg4 e2 Kf5 e1Q g6 h6 g7 d4 c5 h3 b6 a4 b7 a3 b5 a2 b6 d3 Qc2 d1B Be3 d2 Na3 h2 Ne2 Nf6 g8R Ra4 Rhg1 h1N R8g2 Ra7 Nc4 Ra5 Nc1 Qe7 Nb3 Ne8 Bd3 Be2 Bf2 Kc6+ Kg6 d1B f5 Qe6+ f6 Nd7 b8R Kb5 c6 Bf1 b7 Bc5 c7 Qa6 Kf7 Nf8 Ra8 Bf5 c8N Bh7 b8Q+ Bb6 Bf5 Bh5+ Ke7 Bf7 Qb7 Qc1 Qbe4 Be3 Bg6 Bf4 Bf5 Bh2 N8d6+ Ka4 Nb7 Kb5 Ra7 Rg8 Ra8 Rg3 Bg6 Rd3 Ra7 Rd2 Ra8 Ng3 Ra7 Ne2 Bf5 Bd5 f7 Nf4 Ra8 Nh3 Bg6 Nd7 f8Q Be6 Qff5 Bf7 Rb1 a1Q Rb2 Qc6 Ra2 Nf8 Ra7 Qd4 Ra6 Qa7 Ra1 Ra2 Ra3 Qca6 Ra4 Rb2 R4a2 Bfg8 Qeg4 Kc6 Qff4 Qa5 Nc5 Nd7 Qb1 Rb5 Nb3 Bf7 Bd3 Qa4 Qgf5 Nf8 Q4e4+ Rd5 Qb2 Qb5 Bb1 Qba6 Qed4 Rc5 Qbc2 Ra5 Qde4+ Kb5 Na3+
q1B5/4rQbK/1k1r2pN/3q3b/2n2Q2/1Q1Bpb1n/1Nq2BN1/1nbN1RR1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 e5 b4 d5 f4 Kd7 c4 Kc7 f5 e3 Kd3 g3 f6 g2 c5 a4 h5 e2 c6 e1B h6 a3 f7 a2 h7 Bd2 Ne2 g1N Nf4 Ne7 Qb3 Nd7 Ng2 Nh3 Nc3 Ra7 Rg1 Kb6 c7 Bb7 c8B g6 Nd1 Bfh6 f8Q Bg7 Qf7 e4+ Ke2 Rg8 h8N Ne5 Rb1 Bf4 Be3 a1Q Bf2 Nc4 Rc1 Bd2 Rb1 e3 Kf3 d3 Kg4 d4 Kh4 Nf4 Kg5 Bc1 Be2 d2 Bd3 Bf3 Rf1 Be5 Kh6 Ned5 Kh7 Re7 Rg1 Qa8 Rf1 Kc7 b6+ Kc6 b7 Nh3 b8Q Bg7 Qe5 Nc3 b5+ Kb6 Qef4 Qdd5 Ra1 Rd8 Rb1 Kc5 b6 Rd6 b7 Kc6 Ra1 Nb1 b8N+ Kc7 Na6+ Kc6 Bdf5 d3 Nc5 Bh5 Na4 Bf3 Ndc3 d1Q Nb2 d2 Bd3 Qc2 Ncd1 Bh5 Qe6 Kc5 Nf7 Bf3 Nh6 Bh5 Nc3 d1B Qef7 Bdf3 Ncd1 Kc6 Ra5 Qe4 Rg5 Qd5 Ne1 Kc7 Rgg1 Kc6 Ng2 Kc5 Qa2 Kb6 Qb3+
2n1k1b1/1B1r4/1rRQ2pp/BqNbn3/1q1N1N2/1b1RN1b1/BK1R4/Qn5r b - - 0 1 illegal: No proof kernel
R1B5/2rRQb2/3QNp1n/K7/4B1pb/Nk1nq1Rb/n2r1n2/B1qR2Nr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kd6 h4 Kc5 e4 Kb4 e5 g5 c5 d5 b3 a5 h5 g3 h6 g2 c6 f3 b6 a4 b7 d3 e6 g4 e7 d4 e8Q f2 h7 a3 c7 a2 Qf3 Na6 b8N Ra7 Rh4 Qg5+ Qfe3 Nc5 Qe7 Nh6 Na3 Be6 c8B Rc7 Qd6 Be7 Nd7 Rd8 h8R Bc4 Be2 f1B Bf3 Be6 Rb1 a1Q Bb2 Qe5 Rh2 Bh4 Be4 f6 Nf8 Bf7 Rh7 Qg3 Qe1 Qf3 Rh3 Qe3+ Kd1+ d2 Kc2 Rdd7 Ne6 Rd8 Qe2 d1N Rg3 Nc3 Rd1 Na2 Rg7 Bh5 Rd7 Bf7 Rd2 Qe1 Ba1 d3+ Kb2 Rb7 Rd1 d2 Kc2 Rc7 Kb2 Ka5 b4+ Ka4 b5 Nd3+ Kb1 Kb3 b6 Bg5 b7 Bh4 Nh3 g1R b8R+ Nab4 Ra8 Rh1 Ng1 Bh3 Qe7 Qf1 Qf3 Na2 Qf4 Nc5 Qfd6 Qf4 Rf1 d1N Re1 Nf2 Rd1 Kb4 Kc2 Qg5 Nb1 Kc4 Kb2 Ncd3+ Ka3 Qc1+ Ka4 Qge3 Ka5 Kb3 Na3 Rc2 Rf1 Rd2 Ba6 Rc8 Rd1 Rc7 Bc8
Q3n3/bb1K2N1/4Bp1q/Q1qNNp2/RBr1R3/Qn1rn3/Rn1N1r1k/2b5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e6 Ra4 exf5 Ra5 Nf6 Ra1 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 d5+ Kb3 h5 Ka4 a5 g4 h3 c4 h4 e4 d3 g5 d2 c5 Kf4 e5 Kg3 c6 h2 b6 h3 Kb5 d4 e6 a4 c7 d3 g6 a3 b7 a2 g7 Rh6 e7 Ra4 e8N Nc6 b8Q Na5 Qb3 d1N Bd2 Bc5 Qa3 Nb3 Nf3 Qe7 Ne5 Rd6 Qa8 Nb2 Qa7 Rd4 Kc6 Nf6 g8N Rf4 b5 Rf2 Bg2 Rc4 Bb4 d2 b6 d1N Re1 h1R b7 h2 Ng7 Ne8 b8R f6 Ra8 Rhf1 Q7a6 h1Q Bd5 Qh6 Be6 Kh2 Re4 Ne3 Qb5 Qf8 Ne7 Bb7+ Kd7 Rd1+ Nd5 Rd3 c8Q Bb6 Ra6 Ba7 Qa8 Qc5 Nd2 Nbd1 Rc1 a1B Rc2 Bb2 Ra4 Bc1 Ra2 Nb2 Qa5
qn1NQ1bR/1Q2N1R1/NbrB1p1n/nRpB2q1/2q5/K2B4/1r2nk1b/5B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Ke6 Kd2 Kf5 Kc3 Kg4 Kb2 Kg3 e4 a5 d5 c5 d6 h5 b6 a4 b5 h3 b7 f3 e5 c3+ Ka3 h4 e6 c2 e7 f2 e8B h2 d7 h3 b6 Rh6 Qd5 Be7 Nc3 Rc6 Nb5 Nh6 Nf3 f6 Rg1 h1N Nc7 h2 Bg6 Qg8 d8N Be6 Bgd3 Qg5 Nh4 Bg8 Na6 Bd6 Bb2 c1N Rb1 Bc7 Ng6 Nb3 Ne7 Na5 Bc1 Ra7 Rb5 Ra8 Qd7 Ra7 Qe8 Ra8 Bfe2 f1Q Bf4+ Kf2 g4 Ng3 Bd6 h1Q Rg2+ Ke3 Rg1 Qff4 Bf1 Ne2 Rg2 Qc4 Rg3+ Kf2 Rg1 Nd7 b8R Ra7 b7 Bb6 Ra8 Qhd5 b8Q Rb7 Qc8 Nb8 Rg3 Qd2 g5 Qf3 g6 Qg5 g7 Qg2 Kb2 a3+ Ka1 a2 Kb2 a1B+ Ka3 Be5 Rg4 Bh7 g8B Bh2 Bd5 Bg8 Qcd7 Bc7 Qc8 Rbb6 Qb7 Qge4 Rb1 Rb2 Rg1 Bb6 Rg3 Rd2 Rb5 Rb2 Rg1 Qgf5 Rg6 Qg5 Rg7 Qh1 Qf7 Nd7 B5e4 Bh7 Qa7 Rc8 Ne6 Rc7 Rh8 Nb8 Nd8 Bg8 Qe8 Rc8 Qad7 Rc7 Ba8 Qb7 Qc6 Qa7 Bb7 Qa8 Qcd7 Rc8 Bd5 Rc6 Qb7
1bKn2BN/R3b1BN/5p2/qp1n4/1B2qN2/1b1Rbr1r/Q7/R1BknQ1q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 e4 Ke5 h4 Kd4 h5 b5 d6 g5 a5 c5 e5 g3+ Kf3 c4 a6 c3 e6 b3 Kg4 c2 Kf5 b2 h6 f3 h7 f2 d7 g2 a7 g4 e7 g3 e8R Nc6 Nc3 b1Q Bc4 f1N Ne4 Be7 Nh3 g1B Nf6 g2 Nf4 Qa5 Rd8 Nh2 Qf1 Nf3 d3 Kc3 d4 Qbb4 d5 Bh2 d6 g1Q Ra2 Rb8 a8Q Ne1 Ra1 Qg2 Rg1 Qh1 Rg7 Qc7 Qa2 Qca5 Rf8 Bb7 d8B Bg3 Bc7 Nd8 d7 Bd5 Bd6 Rb6 Bc5 Re6 Bd6 Re3 Bb3 Rf3 Re8 Ne6 d8B Qc4 B8c7 Nd8 Bda3 Qd4 Be5 Bc4 Nd7 Nf6 Nf8 Nd5 Bf6 Rg8 h8N Bh2 Rh7 Rgg3 Bg7 f6 Rh3 Qe3 Nh7 Qe2 Rf8 Qe3 Rf7 Qd4 Bcb2+ Kd2 Bc1+ Kd1 Bb4 Qe3 Rh5 Rh3 Rg5 Nc6 Rg3 Qd3+ Ke6 Nd8+ Kd7 Qe4 Ba4 Bb3 Kc8 Bf8 Ra7 Be7 Be3+ c1B Bed2 Rf2 Rc3 Rff3 Rd3 Bc2 Bb3 Bg3 Ne6 Bb8 Bc4 Ba4 Nf4 Bb3 Ba3 Ne3 Bg8 Nd5 Bb2 Kc2 Bb4 Be3 Rc3+ Kd2 Bc1+ Kd1 Rd3+
bRQ1K3/8/nnr1pkB1/1N4pq/Q3r2N/3Bb1nR/qrbrRN2/2B2R2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ra2 Kf7 Kd2 d5 c4 g5 h4 a5 b4 a4 f4 g3 h5 d3 Kc3 e3 Kd4 a3 Ke5 e2 c5 g2 b6 d2 h6 d4 b5 d3 b7 Bh3 c6 Na6 b8Q Qe8 h7 Nf6 c7 Nd5 Qa4 d1R c8B d2 b6 e1R+ Be2 Kg7 b7 Nb6 f5 Qg6 Rc2 a2 Nc3 a1Q f6+ Kf7 Bg4 Qa2 Bh5 Bg7 Qd8 Rc8 b8R e6 Kd6 Bf5 Rh4 Be4 Nh3 g1N Bd3 Ba8 Nb5 Re4 Rf4 Rc5 Rf1 Ne2 Qc8 Ng3 Rb2 Rf8 h8R Rc3 Rh7 Rh8 Rh6 Rh7 Rc2 Rb3 Nf2 Rb2 Bf3 Bh8 Rh3 Qh6 Bg4 Qh5 Bf5 Bg7 Bg4 Kg6 f7 Bd4 Ke7 Be3 Ke8 Kf6 Bf5 Rg7 Bg6 Rh7 f8N Rc7 Bf7 Rc6 Ng6 Re1 Nd6 d1B Re2 Bc2 Nb5 Rd1 Nh4 Rd2 Bg6
b1n1bkB1/2bR1N1Q/4p1NQ/1p3nNr/2Q4r/NRK1B3/2B1b3/2rq1q1n b - - 0 1 illegal: No possible last move
2nN4/2Q4R/1p3b1B/Nq3RrB/3RBqr1/1nn1R1pK/kr2r3/1Q1b1Qq1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 h4 Kc5 a4 Kc4 d4 f5 a5 g5 a6 c5 d6 f3+ Kg3 b3 d7 f4+ Kh2 b6 a7 b2 h5 f2 d5 g3+ Kh3 g2 h6 g4+ Kh2 g3+ Kh3 f3 h7 Qe8 d6 Ne7 Ra3 Rg8 h8Q Nd5 Ra5 Nc6 Qf6 Nc3 Bh6 Rg4 d8Q Bg7 d7 Ne7 e4+ Kb4 e5 c4 Be2 f1R e6 f2 Qf5 Bf6 Nd2 b1R Ngf3 g1Q Ng5 Re1 Nb3 Rb2 Qdb1 f1N Qf3 Nd2 Rf5 Ka3 Na5 Nb3 Qc7 Ba6 d8R Nc8 e7 Qb5 Bd1 Ree2 e8R Bb7 Qfd3 Bf3 Rd4 Rb8 a8B Rb7 Qd8 Rg7 Be4 Rg8 Nf7 R8g5 Qbc2 Ka2 Qc7 Nd5 Nd8 c3 Qc1 c2 Re7 Nc3 Qb1+ Ka3 Rh7 c1Q Rh2 Qf4 Rg2 Red2 Re2 Rdc2 Re3 Rf2 Bc2 Bd1 Qf1 Re2 Bf3 Qd6 Bce4 Qf4 Qc2 Ka2 Qd3 Rg7 Qc2 R4g5 Bh5 Rg4 Qc1 R7g5 Qb1+
2qrn3/3RK2B/p4Q2/5q1b/Rn1qR3/3QNr2/p2bBkN1/bbB1Qr1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 Kg3 e4 h5 b4 f5 b5 c5 d6 f3 b6 a3 d7 a2 Ke6 c4 d5 f2 b7 f4 d6 h3 e5 a6 Nc3 f3 Qd3 h4 Nd1 h2 Nh3 c3 Be2 f1R Ne3 c2 Nf4 Nc6 b8R f2 Rb4 h3 Re4 Nb4 Kf7 Qb6 d8Q Bg7 d7 Qd4 e6 Nf6 e7 Ne8 Qb6 Bf6 d8Q Bf5 Qe6 Be5 Qf6 Rh6 Rg1 h1Q Kf8 h2 Rb1 Nd6 e8B Rh3 Bc6 Ne8 Ke7 Rc8 Qd5 Rd8 Rb3 Bg6 Ra3 Bf7 Ra4 Bh5 Ba3 c1B Qd7 Bd2 Bc1 Rd1 Re1 f1B Qdd6 Kf2 g4 Rg3 g5 Qf3 g6 h1Q g7 Qh3 g8B Qc8 Nfg2 Qff5 Bh7 Rf3 Qd5 Qb6 Q5b3 Ba1 Rd4 Qa7+ Rd7 Qd4 Nf4 Rg3 Bh1 Bh3 Nfg2 Rf3 Rg1 Rf1 Qd1 Nd6 Nf4 Ne8 Rg4 Bg2 Rh4 Bh3 Nfg2 B3g4 Nd5 Bg6 Nde3 B4h5 Re4 Qcc3 Qb1 Qg5 Rh4 Qc8 Qbc2 Bd3 Re4 Qf5 Qc3 Bc2 Qd3 Bb1 Qe1+
4rNRr/4R1pk/3nN1Q1/1bn1B1q1/Bp1n2b1/q1QQN3/3N3K/2R1bqn1 b - - 0 1 illegal: No possible last move
n2qknr1/4BNp1/q2r2Q1/1R1Bp3/1R2B3/B2KbQq1/R1rn2bN/Q6r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 f4 e5 h4 d5 b4 g3 c4 e3 c5 a4 c6 g2 f5 a3 f6 a2 b6 Bh3 f7+ Ke7 b7 Ra3 b5 Rd3 c7 Bg4+ Nf3 g1Q c8B Nd7 b8Q Qg3 h5 Ngf6 h6 Ne8 h7 Rg8 h8Q Bh3 b6 Rc3 b7 Bg2 Qh6 Nc7 Qa7 Rc2+ Nbd2 Na8 Kd3 e2 b8R e1R Rab1 a1Q R8b5 Qa6 Be2 Rf1 Rh2 Rh1 Rb4 Qaa5 Bf1 Qa6 Ke2 d3+ Ke3 Qag6 Qa1 Qa6 Nc4 d2 Bb7 d4+ Ke4 d3 Ba3 Nab6 Bd5 Na8 Qe2 d1N Qg6 d2 Kd3 Ne3 Nd6 Nc4 Be4 Bh3 Qe3 d1R+ Rd2 Bg2 Nh2 Nf6 Bd5 Nh7 Qf3 Kd7 Be4 Be7 f8B Bg5 Be7 Be3 Be2 Nf8 Nf7 Ke8+ Bd5 Rb1 Bf1 Re1 Rf2 Nd2 Be2 Rec1 Bd1 Rc6 Bc2 Rd6 Bb1 Nf1 Ra2 Nd2 Ke2 Rc8 Bbe4 Rc2 Kd3
bb3nk1/5pNr/5r2/nrBqpqBQ/3B2B1/K2R1QQR/3R4/b1n2N1n b - - 0 1 illegal: No proof kernel
qNn2rbb/1q2pR1r/kqN4Q/2p3bB/r2Q4/2R5/2rR1N2/n1B1BNK1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 d4 c5 f4 Kc7 Kf2 Kb7 b4 h5 g5 a5 b6 a4 g6 c3 f5 h3 b5 h2 d5 e3+ Kg2 h4 f6 a3 g7 e2 f7 e1B d6 a2 d7 c2 Be2 h3+ Kf1 Bd2 Bh5 Nh6 g8R Ng4 Rg7 Bg5 Qd4 Nc6 Nd2 Na7 Rh7 Bfh6 f8Q Bg7 Qff4 Be5 Rf7 Ne3+ Kf2 Qc7 d8B Rf8 Nf1 Be6 Rb1 a1R Rb3 Ra4 Rc3 Bh8 Qff6 Qb8 Qh6 Nc8 Bc7 R8a6 Be5 Qa8 Bg3 Rc4 Bh4 Raa4 Bg3 Bf5 Bh4 Bh7 Bg3 Bg8 Bh4 Kb8 b7 Ka7 b6+ Ka6 b8N+ Kb5 Ba3 c1Q b7 Nc2 Nd7 Na1 b8N Qb1 Nc6 Ka6 Bc1 Qb4 Ne2 Qbb7 Neg3 Qb6 Ne4 Qab7 Rg1 h1R Rg2 h2 Bg3 Rg1 Bh4 h1Q Rh2 Rg4 Bg3 Qf3+ Kg1 Rh4 Be1 Qa8 Rd2 Qab7 Re3 Rc2 Nf2 Qa8 Na5 Qfb7 Rc3 Rf4 Nc6 Rf6 Qg7 Rh6 Qgf6 Rh7 Qe6 Q7c7 Qh6 Qcb7 Ndb8+
1b1K3n/1pR1R3/nrQQ1rb1/3QNp1n/NbB1q1rk/2b5/1R4B1/Q2q2B1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 h4 Kf6 a4 c5 d4 g5 e4 f3 Kg3 b3 d6 f2 e5+ Kf5 a5 b2 d7 f6 a6 c4 a7 c3 h5 c2 h6 Bd6 d5 Ba3 d6 Bc5 e6 Na6 h7 Ne7 Bc4 Ng6 e7 Bb4 e8B Rf8 Rh2 Nh8 Nc3 b1Q Be3 c1B Na4 Bcd2 Qc1 Qe4 Nf3 Bdc3 Ne5 Rf7 Ra2 Rf8 Rc2 f1N+ Kf2 g3+ Ke2 Qh4 Kf3 g2 Bg1 Ng3 Bef7 Nh5 Bfd5 g4+ Ke3 Kg5 Ke4+ Nf4 Re2 Kh5 Kf5 g3 Rb2 Nh3 Ke6 Qe4 Rc2 Kh4 Re2 Qb6 Ke7 Qbd4 d8Q Bf5 Qb6 Bg6 Rc2 Rac8 a8R Rc6 Re8 f5 Kd8 Rf6 d7 Qd1 Re7 Rcd6 Qc5 Rc6 Qd6 Rb6 Be3 g1R Rhe2 Qg4 Bg2 Qe4 Rb2 Nf4 Rec2 Nh5 Qa1 Rf1 Bg1 Rf4 Qc6 Qdf3 Qd1 Rg4 Qdd5 Qfd3 Kc8 Qd1 d8Q Qee2 Q8d6 Qe4 Bh3 g2 Kd8 Rb5 Bd4 g1B Bg2 Bh2 Be3 Rb6 Bg1 Bf7 Rc1 Ng6 h8Q Be8 Qh6 Nh8 Rcc2 Bg6 Qc1 Bf4 Qa1 Be3 Qd2 Bec5 Qd6d5 Bd6 Q2d3 Bb8 Qdd6 Qf4 Q3d5 Qe4 Qe8 Ba7 Bb5 Bd2 Rcc7 Bb8 Qec6 Bdc3 Bc4
qRrB4/1pqQNKn1/3Q3p/8/b1n1R1Nb/rn2qB2/RB6/Q2Qbn1k b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ Kg3 d4 c5 a4 f5 a5 f3 a6 c4 d6 b3 d5 b2 a7 c3 d7 c2 Ke6 f2 e5 h3 d6 h6 Nf3 h2 Be2 f1Q Qd2 f4 Ra6 Qf2 Kf7 Qe3 e6 Be7 Nc3 b1N Ra2 Na3 Qd1 Nf6 Bb2 c1B Ne5 f3 Nd5 f2 Ng4 f1N Rg1 Qc7 d8Q h1Q d7 Nc4 Qf8 Bb4 e7 Be1 e8Q Na6 Ne7 Nc5 d8B Nh5 Qed7 Qh3 Rh1 Nb3 Rh2 Ng7 Ra4 Rb8 a8Q Qa7 Rb4 Bg5 Ra4 Bf6 Rb4 Qe3 Qaa1 Ra8 Ra4 Qh4 Ra2 Qhg5 Rh5 Qga5 Re5 Bh4 Re4 Qea7 Ng6 Qe3 Qfd6+ Qe5 Ne7 Ra3 Nh2 Kf2 g4 Kg1 g5 Qea5 g6 Qa8 Ng4 Re8 Q7e6 Kh1 Qed7 Ne6 g7 Rh8 g8R Ng7 Qb5 Bd7 Qf5 Ba4 Qfd7 Qcb8 Ba5 Qc7 Rb8 Rc8 Bb6 Qc6 Bd8 Qc7 Bf3+
2k1Q2B/Q1b3K1/6br/2N1r1N1/R4qbR/nQpp1RN1/rb1n2BQ/b5b1 b - - 0 1 illegal: No proof kernel
1B6/KnrN3r/1rr2nbR/Q6p/Rb1qQ2R/p2R1rNb/2kQ1r2/6BB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 Kb5 f5 c4 d5 c5 h3 g5 f3 b7 a4 c6 f2 g6 h2 c7 f4 Kb6 f3 b5 d3 g7 d4 Na3 d2 Nc4 d3 Ne5 Qd7 Bg2 Na6 b8Q f1R Qa7 Nf6 g8R Bb4 Rg6 Rh7 Rh6 Nc5 Qa5 Rb8+ Ka7 Rf2 b6 Qd4 b7 Bh3 c8R a3 Nd7 Ke3 Rg8 Rc8 b8B Rc6 Rg4 Rb6 Bb2 Nb7 Qe1 d1R Rc1 d2 Rc3+ Qd3 Rf4 Rc1 Rh4 Be7 Ra4 d1B Ba1 Bb4 Qd2+ Kd4 e4 Bc2 e5 Ke4 e6 Qd4 e7 Bd3 Rc7 Rcc6 Ne2 Bc2 Rd1 h1R Rc8 Rg1 Bh1 Rgg7 e8Q+ Re7 Rd8 Bb1 Rc1 Bd3 Rc4 Bc2 Qdg5 Kd3 Ng3 Ref7 Qgd5 Kd2 Qee5 Bg6 Qee4 Kd1 Bc3 Kc1 Bd2+ Kb2 Be3 Rfg7 Ne5 Rgc7 Nd7 Kb3 Rc3+ Kb2 Rd3 Kc2 Qg5 Rh2 Bg1 f2 Re8 f1R Re5 Rf3 Qd2+ Kb1 Rg5 Rg2 Rg4 Rgf2 Qdg5 Kb2 Rh4 Kc2 Qd2+
1r4bQ/1R2Bk2/K1n4r/4pNp1/bQ2BbbQ/1NrRq3/1b2n1Rb/3B1Q2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 g5 c4 d5 b4 a5 f4 e5 h4 g3 f5 a4 f6 a3 c5 g2 h5 a2 h6 e3 Kd3 e2 h7 e1R f7+ Ke7 b6 Nd7 b7 Ra7 b8Q Rb7 b5 Ndf6 c6 Be6 c7 Ne4 c8B Nc3 b6 Ne2 Nf3 g1B Bg2 Bh2 Qa4 Rg1 Bb2 Rc1 Nbd2 Rc6 Rac1 a1B Rhg1 Qd7 Bc3 Bb2 Nh4 Kf6 Bf3 Bb4 Nf5 Ne7 f8Q+ Kg6 Rg4 Bg8 Nb3 Rc5 Rgg1 Nc6 Rcd1 Qf7 Be1 Bd2 Rg2 Bdf4 Bb4 Qe6 Qbd6 Rb8 b7 Rc1 Qc5 Qd6 Qcb5 Qc5 Be4 Rc4 Qh6+ Kf7 Qh4 Qb6 Be7 Rc2 Ne3 Qc5 Qab4 Rc3+ Kd2 d3 Bg4 d4 Qa6 Rd8 b8R Rd6 Rb7 Rh6 Ke1 Qb6 Nf5 d2+ Kf2 Nc1 Qf1 Ne2 Ra1 d1B Ra3 d3+ Ke1 Bfg3+ Kd2 Qd4 Nc5 Ba4 Nb3 Qb6 Bgf3 Rc5 Ke3 d2 Kd3 d1B Bg4 Bf4 Bgf3 Rd5+ Kc4 Qe3 Bg4 Rd3 Bgf3 Ned4 Kc5 Rc3+ Kb6 Ne2+ Ka6 Rc1 Na5 Rc2 Rd3 Rc3 Bg4 Bdb3 Bgf3 Be6 Nb3 Bd7 Ng7 Bg4 Nf5 Ng3 Bd1 Ne2 Rd6 Rc4 Rd5 Rc3 Rd3 Kg6 Qfe1 Bc4+ Rb5 Rb8 h8Q Bg8 Qf1 Kf7 Rb7
rQ1b3r/QR1n1r2/R1r4B/2pbnQB1/K2pN1bN/8/N2BBr1k/1q2r3 b - - 0 1 illegal: No proof kernel
B3B1N1/1Rb1Rr2/n1Kp2R1/B2rbp2/2nq3Q/3Qr2k/Q1N3bb/bR4b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 g5 b4 d3 c4 f6 b5 a3 h5 a4 c5 a2 b6 g3 h6 g2 h7 d6 c6 d2 b7 g4 c7 a3 Nf3 g1B Nc3 g3 Rb1 a1B Ne1 a2 Bg2 Qe7 Rh6 Bh2 Rg6 Qg7 Nd5 Nh6 Ne7 Nf7 Nc2 Na6 b8R Ra7 Ng8 Be7 R8b7 Bd8 e3 Bd7 c8Q Bc7 Qa8 Bc8 Qf1 d1R Qd3 Bd7 Bh1 g2 Bd2 g1B Ba5 Bb2 Bg2 a1B Bh1 Ba4 Bg2 Kd7 Kd5 Bc6+ Kc4 Ke6 e4 Bd5+ Kb5 Re1 Bh1 Re3 Bg2 Bc4+ Kc6 Bd4 Qd2 Bf1 Qd3 Bdb2 Nh6 Rb8 h8Q Bd4 Bh1 Bg2 Ng8 Bdb2 Qh4 Bc3 R7b2 Rb5 Rb4 Rd5 Rb7 Bcb2 Nh6 Ke7 e6 Bbe5 Qg8 Ng5 Qa8 Nf3 Qg8 Nd2 Qf7+ Kd8 Ng8 Nc4 e7+ Kc8 e8B Qh8 Qfh7 f5 Qf2 Kd8 Qhh4+ Qf6 Nh6 Ke7 Qfd2 Bed4 e5 Bdb2 e6 Bbe5 Rg5 Qg7 Q2e2 Kf6 e7 Qg6 Qed2 Qh5 Qdf2 Qg4 Qfe2 Qd4 Qed2 Bef4 Ng8+ Ke5 Rg6 Bfg3 Qh7 Kf4 Qh4+ Kf3 Nb4 Be5 Qa2 Ra8 Nc2 Rb8 Bd7 Rf8 e8R Rf6 Re7 Rf7 Qh6 Kf2 Be8 Kf3 Rge6 Kg3 Rg6+ Qg4 Qg5 Kh3 R7b4 Rb5+ Kd7 Bf1 Ba8 Qd4 Kc6 Rd5 Rb7 Bg2 Qh4+
3r1BR1/3B1pN1/p1rnnr1Q/R1rq1rbR/2N1k1b1/4bQ2/2r2B2/1Q3Q1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 h4 Kd5 b4 g5 c4+ Ke4 c5 d5 h5 d3 h6 a6 b6 d2 h7 g3 c6 d4 c7 d3 b5 g4 b7 Bh6 b6 Nc6 b8B Qd5 b7 Nd4 Ra5 Bg5 Ba7 Nh6 b8Q Ne6 Nh3 Rd8 h8Q Nf5 Ba3 Nd6 Qh6 f3+ Kg1 g2 Bf2 Bd7 c8R Ra7 e3 Rc7 Nf4 Rc2 Rh5 Rc5 Kh2 g1B+ Kh1 g3 Bh3 Rc6 Qf1 d1R Bb4 d2 Na3 Rdc1 Nc4 d1R Bc5 Re1 Qb1+ Rc2 Bb4 Rc1 Rb8 Nc5 Ne6 Bc8 Ng7 Bg4 Ra8 Ne6 Bc5 Rd7 Rg8 Rd8 Be1 f2 Ba3 Kf3 e4 Rc5 e5 Ke4 Bc3 Rc6 Bd4 Rc5 Qd1 f1R Bf2 Nf8 e6 Rc6 e7 Ne6 Bb6 Rf5 e8Q B1e3 Qf1 Rc5 Qc6 g2+ Kh2 Bd2 Qb7 g1R Qa8 Rg3 Kh1 Rgf3 Ba7 Rc6 Bf2 Bde3 Bc5 Rf6 Bb4 R3f5 Qb7 Nc8 Bf8 Nd6 Q7b3 Bc5 Qg3 Bce3 Qf3+ Kd4 Qb7 Nf4 Qb3 Rb2 Qb8 Re5 Qb7 Bd7 Nb6 R1c5 Q1g2 Rbc2 Nc4 Bc8 Bd7 Kd3 Be8 Bg4 Qb2 Ne6 Qb1 Ref5 Bd7 Kd4 Kh2 Kd3 Qgf1+ Kd4 Qg3 Ke4 Kh1 Bd4 Qgh3 Bde3 Qf3+
2N2n2/1pRr1Q1b/2N1Rr1B/2QrrQr1/3B2N1/3K4/pN2rb2/kBqn3n b - - 0 1 illegal: No proof kernel
4r1R1/KB1b1qQR/3bn3/QR4r1/qQ4NQ/2p1n2n/NB1n3p/N4nnk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 b4 Ke6 g4 Ke5 e4 f5 d3 a5 g5 c5 b6 h5 b7 a4 g6 c3 g7 h3 b5 a3 b6 c2 Ne2 f3 Ke3 f4+ Kd2 a2 Kc3 h4 Kc4 h2 Kb5 h3 Rg1 h1N Nec3 c4 Na3 f2 Bg2 f1N Qd2 f3 Bb2 c1N Nc2 Nh6 g8Q h2 Qg7+ Qf6 Qf2 Kf4 e5 Na6 b8Q Bf5 e6+ Bd6 d4 Qf7 d5 Ne2 b7 Rg8 Kb6 Nd2 e7 Nc7 e8N Bd7 Nf6 Ng4 Qh4 f2 Rac1 a1Q Na2 f1N Rb1 Be7 d6 c3 Qbf8 Nf2 b8R Ra5 Bb7 Rg5 Ka7 Ne6 Rg3 Ng1 Rh3 Bd8 Qe7 Re8 Ra8 Bc7 Rd8 Bc6 d7 Bd6 Ra8 Bb5 d8Q Ba4 Qa5 Bd7 Qhh8 Nge3 Rh7 Kg3 Ng4 Nfh3 Qhf8 Rd5 Qh4+ Kg2 Qfe7 Kh1 Rb8 Be5 Qeb4 Bd6 Ra8 Re7 Rg8 Re8 Re1 Qd1 Na1 Qc2 Re2 Qa4 Rg2 Rg5 Rf2+ Qc6 Rf5 Qe4 Re5 Qc6 Rd5 Qa4 Rb5+
R3bN2/2Br1Q2/k1NRb2B/1qb1bR2/3B3K/nbp3Q1/3Qnpq1/2r3bB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 h5 b4 c5 d4 Kc7 e4 Kb7 g5 a5 d5 f5 g6 h3 b6 h2 g7 c3 b5 a4 d6 h4 e5 f3 e6 f4 e7 c2 e8R a3 d7 a2 Qe1 c4 Bh3 Bc5+ Qe3 Qg5 d8Q Nh6 g8Q Ng4+ Kf1 f2 Kg2 f1B+ Kf3 Ra7 Qed3 Ne3 Nc3 Be6 Bg2 h3 Na4 Nc6 Ne2 Nd4+ Kf2+ f3 Rf8 Rh7 Rf5 Rc7 Qf7 Qh5 Rg1 h1Q Kg3 h2 Qd6 Rd7 Qd2 Ra6 Bb2 c1B Qf4 Nec2 Qe5 Nc6 Nd4 Na3 Bc3 Bd3 Rd1 Bc2 Qef4 Qf1 Bh1 Bb3 Qg5 Qg6 Kh4 f2 Qgf4 Qgg2 Qg3 Ra8 Bb2 Rc8 Bc3 Ne5 Nc6 Nd3 Bd4 Nf4 Nc3 Ne2 Ne4 Bb2 Nf6 Rcc7 Nh7 Bc3 Rac1 a1B Nf8 Bab2 Ra1 Bc1 Bg7 Be5 Bh6 Rc8 Qa5 Bcf4 Rd6 Ra8 Qe1 c3 Qd2 Ra4 Ra2 Rd4 Qc1 Rd1 Qd2 Rc1 Ra1 Kc8 b7+ Kc7 b8B+ Kb7 b6 Ka6 b7 Qgg1 Bg2 h1B Bd5 Be4 Bc7 Qgg2 b8B Bb1 Qgg8 Bh2 Ba7 Bg1 Qg3 Be4 Bab6 Bf3 Ra2 Bh5 Ba7 Nd4 Bf3 Qb5 Be4 Ne2 Bd5 Bb4 Bd4 Bc5 Bf3 Qf1 Bh1 Qg2 Qf6 Be8 Qf7 Rd8 Ra1 Rd7 Qe1 Kb7 Rh5 Nc2 Ra8 Na3 Rf5 Re7 Rc8 Rd7 Qd2 Ka6 Ra8+
1N1N2rb/Q3b1N1/np3qk1/RNrrb1p1/2r2nB1/KbQ5/Q1r2BB1/5R2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 g5 Kd2 f5 Kc2 Kf7 Kb2 c5 e4 b3 a4 b6 h4 g3 e5 g2 d6 c4 h5 f3 d7 f2 e6+ Kg7 a5 f4 a6 f3 a7 Be7 h6+ Kg6 h7 Na6 d5 Nf6 d6 c3+ Ka3 c2 Qe2 b2 Be3 c1B Nc3 Nd5 Nh3 g1B Bg2 f1R Nb5 Rd1 Bf2 Bh2 Rf1 Rg8 h8Q Nf4 Qc3 b1R+ Qeb2 Rb8 a8Q Rd5 Qa7 Qf8 d8N Qf6 Ra2 Be3 Qbd2 Bd4 Nc6 Rb4 d7 Bb7 d8N Rc8 Nb8 Rcc5 Raa1 Rbc4 Qa2 Bc6 Nd6 Ba4 Nb5 Bf8 e7 Bb3 Bg1 f2 e8B+ Kf5 Bd7+ Kg6 Bg4 Be7 Rfe1 f1R Bf2 Bg3 Re5 Re1 Rb1 Re2 Rf1 Bh2 Rf5 Rc2 Re5 Nd3 Rf5 Bhe5 Nf4+ Kh7 Nfe6 Nf4 Qh3+ Kg6 Qf3 Qf7 Qc3 Bh8 Re5 Qf8 Ng7 Qf6 Ree1 Be5 Rb1 Ba4 Rb4 Bb3 Ra4 Kh7 Ra5 Kh6 Nb7 Kg6 Nd8
5B2/b2p1RnK/r1N1n3/4N3/QQb1B1Qp/2R1b2Q/qN2bk2/bRrn3n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 b4 a5 c4 h5 c5 d3 Ke3 h3 g5+ Kf5 g6 d2 c6 h2 b6 h4 b7 a4 g7 a3 c7 a2 b5 Ra6 b6 Nc6 b8Q Nd4 b7 Ne7 g8Q Ne6 Qg3 Bh6 Qa8 Qg8 b8N Bb7 c8R Bd5 Bb5 Bc4 Ba3 Bg5 Qh5 d1B Nd2 Bde2 Rf1 a1B Bc6 Qf7 Rc7 Rc8 Ngf3 Qg8 Rhg1 h1N Rf2 Qf7 Rb1 Qg8 Qh2 Qf7 Qg6+ Kg4 Bd5 Qg8 Qc6 Qf7 Qa4 Qg8 Nc6 Qf7 Nb3 Qg8 Nba5 Nf5+ Kd2 Nfg7 Bf8 e3+ Kc2 e4 f5 Ba2 f6 Bac4 Qh3+ Kf4 f7 Bh6 Rff1 Bg5 Qhf5+ Kg3 Nfe5 Kg2 Rfe1 Kg3 Qh3+ Kf2 Qh5 Bf1 Red1 e2 Q5g4 e3 Be4 e1B Rd4 Bce2 Nac4 Bec3 Rd6 Bd4 Nb2 Ba7 Rd5 Bc4 Rb5 e2 Rb8 Bd5 Kd3 Bd2 Rb3 Bde3 Rc3 Ba2 Rb7 Rc7 Rb8 Bb3 Re8 Bd1 Re7 Rc8 Bf5 e1N+ Ke4 Bde2 Bg6 Nc2 Bh7 Ne8 Kf5 N8g7+ Kf6 Bc4 Be4 Bfe2 Kg6 Ncd4 Rd3 Nb5 Ra3 Nc3 Rb3 Nd1 Rc3 Nd8 Rcc1 Be6 Nd4 Rc4 Ndc6 Nh5+ Bg7 Rc5 f8Q+ Qf7+ Kh7 Bb3 Rc3 Ba2 Rd3 Rc1 Rc3 Bb3 Qg8 Qd5 Bf8 Ng7 Qb4 Qa5 Qd5 Qa2 Qdb5 Bbc4 Q5a4 Nde6 Rf7+
R2q4/3pQpr1/3R4/1bn2b2/1bQ2br1/4N1br/3n1Q1N/BkNrRBRK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Ke6 b4 Kd5 e4+ Ke5 c4 a5 h4 g5 c5 g3 b6 d3 b7 Kd4 h5 g4 e5 a4 b5 a3 h6 a2 b6 d2 h7 Ra4 c6 Nf6 e6 Bb4 e7 Na6 b8Q Ne4 e8Q Nac5 c7 Ba6 c8N Bd3 Qb3 d1R b7 Nd2 Qa7 Bf5 Ne7 Ke4 Ne2 f3+ Kg1 g2 b8R f2+ Kh2 g1R Ra8 Rg3 Bb2 Rg8 h8R Rh3+ Kg2 g3 Nc1 Rg7 Bc3 Ke3 Rh6 Ke4 Rd6 Ke3 Bd3 f1B+ Kg1 g2 Qc4 Ra3 Be5 Rh4 Bb2 Rhg4 Kh2 Be2 Re1 g1B+ Kh1 Bf2 Qf8 Bg3 Nd5+ Kf3 Bd4 Bf1 Be2+ Ke4 Ne3 Rb3 Na3 Bf4 Nb5 Bg3 Rb1 a1B Be5+ Bd4 Qe7 Rd3 Qca2 Ba1 Nd4 Ra3 Ba6 Bb5 Nf3 Rb3 Bf6+ Bae5 Nh2 Ra3 Nd5+ Kd4 Ne3+ Kc3 Qd5 Rb3 Ra1 Kb2 Qc4 Nd3 Qad4+ Rc3 Qf4 Nc5 Qf2 Bef4 Bb7 Qb6 Bg2 Qb8 Bf1 Qd8 R1a6 Kb1 Rac6 Ra3 Ba1 Rd3 Rg6 Rd6 Rg5 Rh6 Rd6 Rh3 Qfe2 Rgh4 Re6 Bf2 Rg1 B2g3 Qf2 Rhg4 Rd6
1n6/1p2r1Qn/1N2Qrb1/1B2B1BN/n2q1nRb/K3nn2/QR1Nk1p1/q5Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kc2 g5 Kb2 c5 h4 f5 a4 b3 e4 f3 a5 c4 a6 g3 a7 g4 h5 f2 h6 g2 h7 c3+ Ka3 f4 Ka4 f3 Rh4 c2 Bd2 c1N Bg5 b2 Nh3 g1N Nf4 g3 Ra2 g2 Ka3 Nd3 Nd2 Be7 Nh5 Nf4 Bb5 f1N Rg4 f2 Qa1 Bf5 e5+ Kc7+ d6+ Kb6 d5 Kc5 d7 Kd4+ d6 Ke3 e6 Bg6 Bf6 Nf3 Be5 Bh4 e7 Nf6 e8Q Rf8 h8Q Nh7 Qe6 Rf6 Qg7 Qb6 d8Q Qd4 d7 b1N+ Kb3 Nc3 Qdg8 Na4 d8B Qd5+ Ka3 Qd4 Nc4+ Kd3 Rb2 Ne3 Qg1 f1Q Nd2+ Qc4 Qd5+ Ke2 Qge6 Qd3+ Qb3 Qc4 Qa2 Qa1 Be8 Qd4 Bd7 Rf5 Bg5 Rf6 Be8 Nc6 Bd7 Re8 a8N Nb8 Nb6 Re7 Bb5+
q1rQ4/Qp2n3/b3R3/1Rr1r1N1/2Rr1RBK/B1rk1r2/p1qQN1N1/2b3n1 b - - 0 1 illegal: No proof kernel
r1NNr1Bb/b4K2/1BQ2Qr1/2n1Q1B1/2Q4p/3n2R1/3RpN1b/qn1bn2k b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe4+ Kg4 Bd2 e1B Qe3 a2 f5 Bd6 f6 Nc6 b8Q Bf2 f7 Nf6 f8Q Ne4 b7 Qf6 Qf7 Re8 Nh3 Bd7 Rg1 h1N Qh6 Kf3 c8N Bg4 Bg5 Nc5+ Kc2 d3+ Kc3 d2 Bc4 d1R Nf4 Qg7 Qff6 e4 Ne6+ Bf4 Qbe5 e3 b8B Nd4 Bd6 Nc2 Bc7 Ne1 Nd8 d4+ Kb4 d3 Bb6 d2 Nc3 Rc1 Ne4 d1N Bg8 Nc3 Kc4 Nb1+ Kd5 Bh5 g4 Rd1+ Kc4 Rd6 Qhg6 Rde6 Kd5 Rc6 Rg2 Bg1 Rc2 Nf2 Rd2 Kg2 Qh6 Bfh2 Qhg6 Na3 Rb1 a1B Rb3 Kh1 Rbd3 e2 Rg3 Nb1 Qh6 Nfd3 Qhg6 Rc7 Qc6 Qh8 Qgf6 Rg7 Kd6 Bad4 Kd5 Rg6 Kd6 Rf8 Ke7 Re8+ Kf7 Bc3 Bf4 Bf2 g5 Bg4 Be3 Bd7 Bf4 Rh6 g6 Bf5 g7 Rg6 Bh6 Bd7 Qcc7 Ba4 Qcc6 Bd1 Bg5 Be3 Bh7 Bb2 g8Q Bf2 Qgg7 Bbd4 Qed5 Be5 Bg8 Bfd4 Qb3 Bb8 Qc4 Ba7 Qfd6 Bb2 Qh6 Qc3 Qe5 Qa5 Qhh8 Qa1 Qhf6 Nb3 Qeb5 Nc3 Qe7 Nb1 Qbc5 Bg7 Qef6 Bh8 Qce5 Nbc5 Nf2#
2R2N1B/2n2BQ1/1kQ1b3/4R2r/QNqrrpQn/1n1b3p/1Kn1Rr1N/4b3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 Kc7 g4 a5 c4 f5 Kc2 h5 e5 d3+ Kb2 f3 e6 h3 g5 f4 g6 f2 g7 h2 e7 d2 e8R d4 c5 a4 c6 d3 Be2 f1B Nf3 h4 Ra2 h3 Nc3 Kb6 c7 Be6 c8Q Nh6 g8Q Nf5 Qg4 Qd4 Qd7 Bg7 Rc8 Na6 Qb3 Bf8 Qdg7 d1R Qc4 Nc7 Qc6+ Ka7 Be3 d2 Bc4 Bd3 Re1 h1R Nh2 Nh4 Bf2 Rg1 Re5 Rg2 Be3 Qc5 Nd5 Rh5 Bd4 Rf2 Bb3 Re1 b6+ Ka6 Bc3 Qc4 b7+ Ka7 b8N Re4 b5 Bb4 Nd7 d1N+ Kc1 a3 b6+ Ka6 Re2 a2 Nf8 Ne3 Kb2 a1N b7+ Ka7 Ba2 Nec2 Qa4+ Ba5 Nb4 Kb6 Bb3 Ra7 b8Q+ Rb7 Qa8 Rb8 Re8 Rd8 Ba2 Rdd4 Rc8 Qc5 Bc4 Nb3 Bd5 Qc4 Q8c6+ Ka7 Qe8 Kb6 Qed7 Bf5 Bf7 Be6 Qdc6+ Ka7 Q7g6 Na8 Na6 Rd8 Rf5 Nc7 Bh8 Be1 Re5 Rd6 Qg7 Rdd4 Qd5 Kb6 Nb4 Bd2 Qda8 Be1 Q8c6+
N4rbB/1Nr1B1R1/3br2b/1Qb1nRn1/4p1n1/qp2Q3/3Q2K1/1Rnk2BB b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 g4 Kg6 f4 h5 Kf2 e5 a4 c5 d6 b5 d5 c4 d7 h3 a5 h2 d6 b3 g5 Kf5 a6 e3+ Kg3 Ke4 a7 e2 g6 e1B+ Kg2 b2 f5 c3 g7 b4 f6 h4 f7 b3 Ne2 c2 Ra5 Bg3 Rb5 Qa5 d8Q Qa3 d7 Nh6 g8R Bc5 f8B Nc6 Bg5 c1B Qd2 Nf7 Q8a5 Rh6 d8B Be6 Be3 Ng5 Qdb4+ Kd3 Bfe7 Kc2 Nd4+ Kd1 Nf5 e4 Bg1 Bgd6 Rg7 Bg8 Nd2 b1N Nc4 Ne5 Nb6 Nc3 Qd4+ Bd2 Qe3 Re6 Qb4 Rc8 a8Q Ne2 Qd5 Nc1 Na8 Rc6 Ra5 Rc7 Qb5 h3+ Kg3 Rc6 Bg2 Rc8 Bf6 Rc7 Bde7 Na2 Qb6 Nh7 Qf4 Ke2 Rb5 Nf7 Ra5 Bd4 Nh6 B6b4 Be3 Be5 Rg1 h1R Rb1 h2 Rg6 Rf1 Bg1 Nc1 Bh8 Kd1 Nf5 h1N+ Kh2 Rf3 Nd6 Nf2 Nb7 Bed6 Bh1 Ng4+ Kg2 Rf1 Qdd4 Rf3 Rh5 Nfe5 Qb5 Bbc5 Rg7 Rf1 Qh6 Rf8 Qb2 Bf4 Rf5 Bg5 Qh3 Bh6 Qe3 Ng5 Qbd2#
NB4BQ/1k6/3Q2n1/4qQKR/pnbrNr2/r1p3n1/1b2nRr1/bRR1B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Kg4 f5+ Kh5 c5 e4 Kc7 g4 c3 d4 f3 b4 f4 b6+ Kb7 e5 c4 g5 c2 b5 h3 g6 f2 e6 h2 d5 f3 g7 Ne7 g8Q Bg7 d6 Nbc6 d7 Ng6 e7 Qc7 d8Q Nb4 e8R Qe5+ Qg5 Be6 Bd2 c1B Be1 Bb2 Ne2 a4 Nd2 Rd8 Ng3 Rd4 Bh3 f1R Rc1 f2 Rf8 Rg1 Qf5 f1R Kg5 h5 Qh7 Rg8 Qh8 h4 Bg2+ Rf3 Nge4 h3 Rf6 Rf8 Rf7+ Kb8 b7 Ra3 Rf6 Kc7 b8B+ Kb7 b6 Bg8 Qb3 Be6 Qg3 Bf7 Bf3 Rg2 Bd1 Bd5 Bb3 Rf7 Nb1 Be6 Nbc3 Rf8 Nb5 Rf7 Rg1 h1N Nc7 h2 Na8 Rf8 Rf1 Ba1 Rf2 Bg8 Qg4 Ng3 Qf4 h1N Rd6 Rf6 Rd5 Ne2+ Qg3 c3 Ba2 Bf8 Ra5 Bc4 Bb3 Bb5 Bg8 Bc4 Rc5 Rh2 Qf4 Nhg3 Ra5 Rg2 Rb5 Qc5 Qd6 Qe5 Ra5 Rf7 Rd5 Rh7 Rb5 Rh4 Ra5 Rf4 Rd5 Ka6 b7+ Nc6 Qc5 Bd6 Bc7 Bf8 b8R Qg7 Qe5 Ra2 Rbb1 Bd6 Bb8 Qc7 Nb6 Kb7 Kh6 Be7 Qa5 Ba3 Na8+ Nb4 Qe6 Qe7 Qd6 B3b2 Rh5 Ra3 Qf5 Qe5 Kg5
K1n5/1n1Q1b2/B7/qb1prRR1/5r1b/knBrNB1R/r3b1Qp/1NN1N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kb4 Kd5 f5 c4 h5 e4 a5 e5 f3 g5 f2 e6 h3 g6 d6 g7 d3 e7 h2 e8B f4 c5 d2 b6 a4 c6 f3 b7 h4 c7 h3 Bc6 a3 Ne2 Bg4 c8N a2 Ne7 Ra7 Nf5 Rh6 Ne3 Nd7 b8Q+ Qb6 Qb7 Re6 b3 Be7 Bb2 Ra6 Nc1 Bh4 Bd3 Ra7 Ba6 f1B Qc2 d1B Nd2 f2 Bc3+ Ka3 b4 Bge2 b5 Nc5 Qd7 Qa5 b6 Ra8 Rb1 a1N b7 Nab3 b8N Bh5 Bcb7 Bde2 Nc6 Bf7 Nd4 Re5+ Kc6 Rd8 N4f3 d5 Ne1 Ra8 Bc8 Nb7 Qe4 Ra7 Qg2 Ra8 Bd3 Ra7 Be4 Ra8 Bf3 Ra7 Rg1 h1R Rb2 h2 Rb1 Nf6 g8R Ne4 Rg3 Ned6 Rh3 Ra8 Qg7 Ra7 Rg5 Rg1 Rf5 Rg4 Rb2 Rd4 Qg2 Rd3 Rc2 N7c5 Ba6 Ncb7 Bd4 Ra8 Rc4 Nc8 Bc3 Bd1 Rg5 Bfe2 Rf4 f1R Rff5 Rf2 Bg4 Rf4 Bh5 Bf1 Bf3 Bde2 Bc4 Qb5+ Kc7 Ra4 Kb8 Qa5 Ba6 Rac4 Bd4 Rc2 Ka8 Ra2 Bc3 Bd1 Rg7 Rdd4 Rhg3 Bb5 Rh3 Rd3 Rgg5 Be2 Nb1+
4r2q/3n2k1/R1Qp1r2/7N/Q1bBQ1Rb/N2Rp2b/r1RN2rn/2K1n1bB b - - 0 1 illegal: No possible last move
q2br1q1/3Nnrk1/b1R1b3/2NB4/4R1Bp/2q1QR2/1p1BQ1Q1/bK3nQq b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 b5 Kd2 h5 Kc2 f5 e4 Kf7 a4 c5 g4 c4 g5 f3 g6+ Kg7 e5 f2 e6 h3 e7 c3 e8B f4 d6 h4 d7 f3 d5 h2 a5 Rh7 d6 Nc6 a6 Nf6 a7 Be7 Bg2 f1B Ra4 f2 Nd2 b3+ Kb1 b4 Ne4 b2 Bd2 Nh5 Qe2 Ng3 Nc5 Ba6 Bf7 Qg8 Bf3 Bd8 B7d5 Bh3 Bg4 Nf1 Nf3 Ne7 Ne5 Rb8 Rg1 h1Q a8Q Rc8 Rg3 c2+ Ka2 c1B Kb1 Qf3 Qc6 Qc3 Rf3 Ne3 Qb6 f1Q Qg2 Qh1 Qg1 Bc7 d8Q Nf1 Qe8 Bd8 d7 Rb8 Qb5 Qg2 Qe2 Ra8 Bh5 Be6 Bg4 Qh1 Be1 Be3 Bd2 Bd4 Qee3 Kh8 Qg2 Rf7 Qgg1 Kg7 Qe2 Bb6 d8R Rb8 Rd6 Bd8 Ned7 Qg2 Ka2 Rc8 Rc6 b3+ Ka3 Be5 Re4 b1Q Qee3 Qcc2 Qe2 Ba1 Qee3 b2 Qe2 Qbc1 Ka2 Qc3 Qee3 Q1c2 Qe2 Qa4+ Kb1 Nf5 Qe7 Qh1 Qg5 Ne7 Q5e3 Ba5 Qgg2 Re8 Qgg1 Bd8 Qgg2 Bb7 Qgg1 Qa8 Qgg2 Kh8 g7+ Kh7 Qgg1 Ba6 Bh5 Qh8 Na4 Rf4 g8Q+ Kh6 Q8g4 Qg8 Nac5 Kh7 Qh3 Rf7 Bg4 Kg7 Qhg2
Q2R1n2/1q2q1RB/N1qNr1p1/n5Qr/1R3BbQ/k1n1N2Q/5p1b/K3nq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 h4 Kd6 c4 Kc5 Kc2 Kb4 e4 f5 b3 a5 Kb2 d5 b6 f3 c5 f4 h5 a4 h6 d3 e5 f2 c6 d4 c7 g3 h7 g2 e6 d2 e7 f3 e8Q d3 b7 Nc6 b8N Nf6 Nc3 Bg4 c8Q Nd7 Rh4 Bd6 Nh3 g1Q Nb5 Na5 Nf4 Qh1 Ng2 Nf8 Ne3 Bh2 Nd6 Qe7 Qg6 Qg2 Qg5 Ra6 Qe1 a3+ Kb1 a2+ Kb2 Rg8 h8Q Rc6 Rb1 a1N Rh7 Nc2 Qb7+ Rb6 Qa8 g6 Rg7 Ra6 Qh3 Rh8 Be2 f1Q Qeh4 Ne1 Ka1 d1Q Rb2 d2 Bc4 f2 Bg8 Rh6 Bh7 Ka3 b4 Qde2 b5 d1N b6 Qc6 b7 Qeb5 Bd2 Rh5 Rb4 Rb6 Na6 Nc3 b8R Qcb7 Rd8 Qa4 Ne4 Re6 Nd6 Qad7 Nef5 Qde8 Bf4 Qec6 Ne3
1N4n1/k1B5/1rQnK1p1/2r2Qbq/R1RbB2p/nq3n1b/4NBNN/4bR2 b - - 0 1 illegal: No proof kernel
q7/N1k1qn1N/1b1N2pR/p1n2R2/1q3QBb/1QB4K/bqQ1r1QB/5b1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 Kg2 Kd7 e4 f5 b4 a5 c4 g6 h4 d3 h5 g3 c5 d4 h6 d2 h7 d3 c6+ Kc7 e5 Be6 b6+ Kc8 b5 Be7 c7 Qd4 Qg4 d1Q Na3 d2 Nf3 Nh6 Ng5 Q1a4 Be2 Ba2 e6 d1Q Rh4 Re8 h8B Qb2 Qf3 Bd8 e7 Nf7 b7+ Kd7 c8N Qe1 b6 Na6 Nd6 Rc8 Qd3 f3+ Kh3 g2 b8Q g1B b7 f4 Qa8 f2 b8Q f3 Qbb3 Rc4 Nh7 Kc7 Bf4 Rc1 Rh6 Qab4 Bc3 Rb1 Qdc2 f1Q+ Kg4 Bd4 Bh2 Qh1 Kh3 f2 Bg4 Bb6 Qf3 Nc5 Nab5+ Kb8 Qff5 Qa8 Na7 Kc7 Qfe4 Qe2 Qg2 Rh1 Re1 Qe6 Re5 f1B Reh5 Rh8 e8Q Bh4 Rd5 Qe5 Qe6 Re8 Qf6 Qg5 Qff2 Re2 Rf5 Qe7 Qf4
1N3BBn/rqNRK2R/2p4b/2r4N/1nNbk2r/4p3/b1r1bR2/2Q1Qq1Q b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 a5 g4 h5 d4 c3 b4 h3 f4 h4 f5 e5+ f6 e3 b6 c2 b7 e2 b5 e1R b6 a4 Ra2 e4 Na3 e3 Bc4+ Ke4 d5 c6 d6 h2 d7 h3 Ne2 Rh7 Nf4 Re2 Nh5 Ra6 Qe1 Qe7 d8R Ra7 Rd7 Na6 b8Q Nh6 b7 Nb4 Bg8 Nf7+ Kg6 Bh6 g5 Rg2 Nc4 a3 Qbg3 Re2 b8N Ba6 Qgg1 Rf2 Bb2 c1R Bd4 Rg2 Rf2 a2 Bc5 a1B Bd6 Rc2 Qc1 Rg4 Qge1 Rh4 Bc5 Bd4 Bd6 Nd8 f7 Bb5 f8N Nf7 Ne6 Rh8 Na5 Be2 Nc7 Rc5 Nc4 Rh7 Rhf1 h1Q Rh2 Ra2 Rff2 Qf1 Rh1 Rc2 Rhh2 Qd8 Bf8 Qc8 Rh1 Qb7 Rhh2 Ne5+ Kf6 Nf7+ Ke7 Rg7 Rh1 h2 g6 Rh7 g7 Nh8 Rg1 h1B Rg3 Bg2 Rh3 Qa8 Bf7 Bgf3 g8Q Qb7 Qg1 Bg4 Rh1 Be6 Rhh2 Bdg7 Bg8 Bd4+ Rf7 Rg7 Rf2 Bd5 Nb6 Ba2 Nc4 Rgg5 Rh7 Ra5 Rhf7 Rgc5 Rh7 Ra7 Qh1+
1nB1r1qR/1NqQ3p/qB5r/2nR4/2RKB1bq/b2N3r/1pQ1Q3/1Br2k2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 Kd6 g4 f5 a4 c5 e4 b5 e5+ Ke7 d6+ Ke6 g5 Kd5 g6 Ke4 e6 f3 d5 h3 d7 c4 g7 h2 e7 c3 a5 c2 a6 f4 d6 b3 a7 b2 Ra4+ b4 Nh3 Nf6 g8B Qc7 d8Q Bg4 Be6 Nfd7 e8Q Nc5 Be3 c1R Na3 b1R d7 Rb3 Nc4 Ra3 Qc8 b3 d8R b2 Qe2 Bd6 Qed7 Re8 Rg1 h1Q Bd4+ Re3 Na5 Bf8 Ba2 Re6 Rg3 Rh6 Rc4 Be7 Rh8 Bf8 Ng1 Qh4 Bh3 Bd6 Nb7 Be7 Qe1 Kd3 Ne2 Bf8 Qf1 Kd2 Bb1 Rb3 Kg1 f2+ Kg2 Be7 Re3 Bf8 Re5 Re3 Rd5 f3+ Kh1 Ra3 Nf4 Rac3 Kh2 Rd3 Qg2 Ke1 Be3 f1Q Qc2 f2 Qce8 Ne6 Bb6 Ba3 Qh5 Qe2 Kg2 Nc5 Qhe8 Qe6 Qee7 Nc6 Qee8 Rd8 a8B Re3 Qee7 Qg8 Qee4 Re8 Qf3 Rb3 Qfd3 Bf5+ Kf3 Nb8 Bg4 Be6 Ke3 f1Q Kd4 Qe2 Qe4 Rh3 Nd3+ Kf1 Bf5 Qd2 Qg4 Qa5 Be4 Qa6 Qge2+ Kg1 Na5 Bg4 Bb7 Re1 Bc8 Rc1 Qh2+ Kf1 Nb7 Rd6 Qhd2 Rh6 Qe2+
7r/b1nB2pq/2RnQ2N/2nq1pR1/bB3Q2/1r3qN1/n2R2q1/B1kQK1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 b6 d5 b5 f5 b7 d3 c5 Kd4 b6 a4 c6 a3 c7 f3 e5 g3 e6 g2 e7 a2 e8Q Ra3 h5 Ne7 h6 Na6 b8B Rb3 h7 Bd7 c8R Ba4 b7 Nc7 Na3 Kc3 Nc4 d4 Rh5 Qd5 Rg5 Qg8 Rd8 Nc8 Qe6 Bc5 Ba7 Nd6 b8B Bb6 Rb1 a1N Qde2 Bc5 Bd2+ Kc2 Bb4+ d2+ Kf2 Bb6 Ne5 Bc5 Rb2+ Kc1 Nf7 d1N+ Ke1 d3 Nh6 Nc3 Rc8 Na2 Rd2 Be3 Nh3 g1Q Nf2 Qh1 Ne4 Qg2 Ng3 Bg1 Bd4 Be3 Bf6 Ba7 Bd4 Rb1 Bg1 Nb3 Rh5 Nc5 Rg5 N7a6 Rc6 Rb3 Qe7 Qd5 Q7e6 Qh1 Bc7 Qh2 Bd8 Nc7 Bf6 Qh5 Ba1 Qg6 Bg2 f2+ Kf1 Rb8 h8Q Qh7 Qf8 Rd8 Qff6 Rh8 Qfe5 Qf3 Rb2 d2 Qf4 Qc3 Bd5 Qf3 Bc4 Re3 Bb5 d1Q+ Be1 Qb3 Bb4 Qbd5 Rd2 Rc3 Rb6 Rb3 Bd7 Qd4 Rc6 Qdd5 Q2e5 Qg2+ Ke2 Kb1 Kd1 f1Q+ Qe1 Qfd3 Q1e2 Q3f3 Ke1 Kc1 Qd1+
bNKn2r1/2Bnp3/1bB1B2N/R6Q/QR1R4/Npqb3q/4rn2/3kB1bn b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Kc5 Kf4 d4+ e3 g4 h5 a4 b5 a5 h3 a6 h2 g5 b3 a7 h4 d6 b2 d7 h3 g6 b4 g7 b3 d5 Bb7 d6 Nf6 g8N Qc8 d8B Bh6 d7 Nc6 Na3 b1B Qh5 Bd3 Ne2+ Ke4 Nd4 e2 f4 e1B f5 Be3 Bd2 B1f2 Be2 Bg1 Nh6 Rg8 Be1 Rg2 Bg4 Re2 Ra2 Bef2 Ra1 Ke3 Ra2 Rb8 Ra1 Ba8 Ra2 Nh7 f6 Nf8 f7 Rb2 Nf3 Ke2+ Kd5 Kd1 Ne5+ Re2 Be6 Na5+ Nc6 Nb7 Bb4 Bb6 Be1 Bgc5 Rf1 h1N Rf4 h2 Rb4 Be3 Ke5 Nf2 Kd5 h1N Ke5 Nh7 f8Q Nf6 Qfe8 N6e4 Na5 c5 Nc6 c4 Bc7 c3 d8R c2 Rdd4 c1Q Ra1 Nd8 Qd7 Bb7 a8B Nc5 Qde8 Qd7 Ra2 Rc8 Nb8 Be4 Bc6 Qc3 Nb1 Bg2 Ra5 Be4 Na3 Bd5 Bg8 Qh3 Be6 Bf3 Be4 Bg2 Qa4 Nd7+ Kd5 Ng4 Bf3 Bg1 Be4 Ngf2 Bf3 Nf7 Be4 Rg8 Bf3 Qa1 Kc6 Qc3+ Kb7 Nd8+ Kc8 Qc2 Nc4 Qc3 Bc6 Be4 Na3 Bd5 Bb5 Ba8 Bc6
2nNbK1N/1rpB1R1Q/3n1R2/1pb2N2/3Br3/3N1n2/n2Q1R1q/Q3rkqr b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 a4 Kg3 d4 Kf2 e4 f5 g4 b5 d6 h5 a5 f3 a6 b3 a7 b2 d5 h3 g5 f4 g6 h2 g7 h4 d7 h3 Ke6 Qh4 Kf7 Nc6 d8N Nd4 d6 Qh7 d7 Nc6 e5 Nf6 e6 Bc5 e7 Ne4 e8R Rb8 a8Q Na7 Nd2 b1N Nb3 Rb7 Re7 Re8 Ra6 Nbc3 Rf6 Na2 Bb2 Qh4 g8Q Nd6+ Kg7 Qh5 Ref7 Re4 Ne2 Qg6+ Kf8 Qg1 Qd5 Ke1 Rh7 f2 Nf7 f3 d8N Bd7 Nh8 Be8 Nbc1 Nac8 Bg2 f1R Qd2+ Kf2 Rhf7 Re1 Bc3 Qf1 Rg1 h1Q Qh7 h2 Bh3 Qhg2 Qa5 h1R Bd7 Qh2 Rg5 Qfg2 Nd4+ Kf1 Nd3 f2 Nf5 Qhg1 Bd4 Q2h2 Qdb4 Ke2 Qb1 f1N Qa1 Nd2 Rg2+ Kf1 Qb4 Nf3 Qd2 Nc3 Re2 Na2 Rf2+
3R2qk/1p2b3/n2RR3/Q1Q1r3/KQb1nN2/1r2qB2/1r1RrnBp/1n2B2N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 c5 Kd2 h5 Kc2 f5 Kb3 Kf7 g4 Kg7 a4 h3 e4 f3 d6 h4 d5 h2 g5 h3 d7 f2 g6 f4 d6 f3 a5 c4+ Ka4 b3 a6 b2 a7 c3 e5 c2 e6 Na6 e7 Nb8 e8Q Qb6 d8R Rh5 d7 Na6 Qde1 Qe6 Ra2 Nf6 Qe7+ Kh8 Nd2 b1N Bg2 f1R Ne4 f2 Qc5 Re5 Ne2 Qg8 Bd2 c1Q Nf4 Be7 Ng3 Ne4 Bf3 Rb8 a8Q Rg1 Bc3 f1R Rd2 Rg2 Rg1 Re2 Nh1 Rff2 Qaa7 Ra8 g7+ Kh7 Rd6 Qe3 Rgg6 Rb2 Qab6 Rfe2 Qbb4 Ra7 Rge6 Rb3 Ng3 h1N Qd2 Nhf2 Nh1 h2 Qe1 Qf8 g8B+ Kh8 Bf7 Ra8 Bg2 Rbb2 Bh5 Qg8 Bhf3 Ra7 Re8 Rb3 d8R Reb2 Rd2 Bd7+ Rc6 Be6 Rcd6 Bc4 Qba5 Bf6 Ree6 Be7 Qe2 Ra8 Qd3 Rc8 Qdd4 Rc7 Qcb4 Rc6 Qdc5 Rb6 R2d5 Re2 Be1 Rbb2 Rd2 Rb5 Qc3 R5b3 Q3b4
3b2KB/NpQ1NN2/1qBn4/1Q2p2k/2b2qR1/1brRR2n/4R1q1/Qr3qb1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 c5+ Ke5 h5 f4 e3 g4 e2 a4 e1Q+ Qe2 c4 d4 h3 a5 c3 g5 e6 d6 b3 f5+ Kf7 d5 c2 d7 b2 f6 Kg6 a6 h4 d6 h2 a7 h3 f7 Qh4 Ra2 Ne7 Na3 b1Q Qb5 Na6 Bg2 Kh5 Kf6 Qb6 d8Q Nc5 d7 Ng6 Bb2 c1B Nf3 Nf4 Qc7 Be3 d8R Qf1 Rd3 Bg1 Ne5 Be7+ Kg7 Bd8 f8R Ne4 g6 Nd6 Nf7+ Qg5 Bf6 e5 Rg8 Be6 Re2 Bb3 Bc6 Rc8 Kf8 Rh6 g7 Rg6 a8Q Qh6 Qc4 Rg2 Ree3 Rb2 Nb5 Rb1 Qa1 Qg5 Na7 Qgg2 Qd7 Qc1 Qb5 Qgf1 Bg2 Rc3 Bc6 Qe2 Rg3 Bd4 Re1 h1B Rg2 h2 Qc8 Qf1 Qc7 Nh3 Rgg3 Qff4 Re2 Bg1 Rge3 Bhd5 Rh8+ Kg6 g8N h1Q Rh4 Qg2 Bh8 Bdc4 Rg4+ Kh5 Ne7 Qcf1 Kg8
R1Rqq1B1/1p4qp/2Q1NQQ1/2qn1K2/3Nr3/1b1n4/nB1rQkBb/1n3N2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 a4 f5+ Ke5 b3 e4 b2 g4 f3 d3 h3 g5 f2 g6 f4 a5 f3 d6 h2 d7 Nf6 g7 Na6 g8Q Nb4 a6 Nfd5 a7 Na2 Qg6 Bd6+ Kf5 Kd4 e5 c5 e6 c4 e7 c3 e8B c2 Bg2 f1Q Bf7 f2 Nd2 Ke3 d4 b1N Bb2 c1Q Ne2 Qe1 Bg8 Qc5 Qc1 Rb8 a8Q Be5 Rf1 h1N Qaa6 Bh2 Qd1 Ra8 Qac6 Ra4 Rg1 Bf4 Qc2 f1Q Qd1 Qf3 Nf1+ Kf2 Qd3 Qg3 Qda6 Nf6+ d5 Re4 Nd4 Be5 d6 Nd5 Qab5 Qgc3 Qd3 Bh2 Qd1 Nab4 Ra8 Na2 Ne6 Qg7 Nd4 Re2 Qc2 Rd2 Qd3 Qee8 Qe4 Qdb6 Qee6 Qc7 d8Q Bd7 Qdf6 Qcd8 Qa6 Ba4 d7 Bb3 Qec6 Ke1 Qc4 Nf2 Rh1 Nd3 Qc2 Qdb6 d8N Kf2 N8e6 Qbd8 Qc4 Be5 Rh5 Bh2 Rh3 N3f4 Rc3 Nd3 Bf7 Rf8 Bg8 Rf7 Rc1 Re7 Qc2 Rf7 Qd1 Re7 Qe2+ Kg1 Nc7 Qb5 Qc5 Re4 Nce6 Qba5 Qd6 Qa7 Rcc8 Qc5 Qeh5 Kf2 Qc6 Qcb6 Qd1 Qc5 Qe2+
n3BQ2/nQ2R3/br5B/3pqr1R/rbkNN1NK/p1Q1p3/3q3N/2B2q1b b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Ke6 f4 Kd5 Kf2 h5 c4+ Ke6 g5 a5 b6 d3 g6 a4 c5 Kd5 g7 e5 c6 a3 b5 h3 Kg3 d2 f5 e3 f6 e2 f7 h2 c7 e4 b7 Nf6 g8N Ne8 b6 Kc4 Qe1 d1Q Nf3 Rh6 Nc3 Ra4 Nf6 Nc6 b8Q Ba6 c8Q Nc7 b7 Bb4 f8B Na7 Ng4 Rb6 Bfh6 h4+ Kh3 Qf6 Qf8 d5 Rb1 e3 Ne4 Qe5 Qc3+ Kb5 Qbc8 Na8 b8N Qe1 Nc6 Qd2 Bg2 e1R Qb7 Rf1 Ncd4+ Ka5 Ng1 Rf5 Ngf3 Qb2 Bf1 Qd2 Rg1 h1Q+ Nfh2 Qf3+ Rg3 Qff4 Bb5 Qff2 Be8 Qff4 Ngf6 Qf1+ Kg4 h3 Kh4 Nb5 Rg5 Na7 Nhg4 h2 Rh5 h1B Nh2 Bd3 Nfg4 Ba6 Nc6+ Kb5 Rb2 Qdd3 Rg2 Qd2 Rf2 Rg5 Rf7 Rf5 Re7 Ba5 Qa1 Kc4 Nd4 Bb4 Qc3+
1N4b1/2K1bB1R/1BB1R2R/1N1p1Q1p/2rn3r/2B1Q1Q1/r1pq2q1/n2kbq2 b - - 0 1 illegal: No proof kernel
2k1Q3/QrN3R1/3B1q2/pNb1nrRp/nQp4b/KQB1rq2/2b5/1q2RB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 d4 f5 Kd2 h5 Kc3 a5 g4 c5 b4 h3 Kb2 f3 b6 h2 d5 c3+ Ka3 f2 e5 f4 e6+ Kd6 b7 Kc7 g5 c2 e7 f3 e8Q c4 g6 Ne7 g7 Nf5 g8R Nh6 Rg7+ Nd7 Nh3 Bc5 Bd2 Ra7 Rhg1 h1Q R1g5 Qf6 Bc3 Ng4 Nf4 Ne5 b8B+ Kb7 Qf7 Re8 d6 Qg2 Bc7 Nb6 d7 Na4 d8Q Bf5 Ne6 Be4 Q8d4 Kc8 Bd6 Rb7 Nc7 Qg3 Q4d2 c1B+ Qb2 Bd2 Qdb3 Be1 Qd2 Bc2 Qe3 Bd4 b5 Bc5+ Qb4 Re6 b6 Qg4 Qc1 Qe4 Qb2 Re8 Qb3 Qe2 Bg2 f1Q Qe7 Qg1 Bf1 Bh4 Qf7 f2 Qg6 Ra7 Qe4 Qef3 b7+ Kd8 Qh7 Re7 b8Q+ Kd7 Rg4 Rb7 R4g5 Qgh1 Qa7 Kc8 Qg8+ Re8 Bd4 Qg1 Nc3 Qgh1 Re1 Qg1 Bg2 f1R N3b5 Rf2 Bc3 Qf1 Re3 Qb1 Qf8 Qg3 Re4 Rf5 Bf1 Qf3 Re1 Nc6 Qf7 Re3 Qg6 Ne5 Qe8+
q1nB2QR/q3bK1N/N2kp3/nn2qQ1N/2r3b1/b4RpQ/p1B5/1QB3r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 g5 f4 d5 b4 Kd7 c4 d3+ Ke3 e6 Kd4 e3 Ke5 d2 h5 d4 c5 e2 c6+ Kc7 h6 e1B h7 a4 f5 g3 f6 a3 f7 g4 Nc3 g2 Nf3 g1Q Bd3 g3 Ne4 a2 Bc2 d3 Nfg5 Ra6 Nf6 Bc5 f8Q Bb7 Nh5 Be7 Qf5 Qa7 Rb1 Ba8 Rb3 Ra4 Qdg4 d1Q Qh3 d2 Rf3 Bf2 Rh2 Bfc5 b6+ Kc8 c7 Kd7 b5 Ba3 b7 Rc4 b6 Qe2+ Ne4 d1N c8Q+ Ke8 Rh1 Nc3 Rh2 Nb5 Rh1 Na6 b8N Nc5 b7 Nb3 Na6 Na5 b8Q Qee3 Qb6 Qg5 Qcb8 Kd7 Qg1 Bd5 Nef6+ Kc6 Qd1 Qc8 Rh2 Qcb7 Qe1 Qba8 Qb4 Be4 Qb1 Bd3 Qf8 Be2 Qg7 Bec5 Qf8 Ne7 Qd8 Rf8 h8B Nc8 Nh7 Be7 Bf6 Rh8 Qg8 Kd7 Rff2 Bg4 Rf3 Kc6 Qf7 Rd8 Qg8 Rd1 Rh1 Rg1 Rh2 Bf8 Bd8 Qf4+ Kf6 Bfe7+ Kg7 Kd6 Kf7 Qe5 Qf1 Qae4 N5f6 Nd4 Ng5 Nb5 Rh8 Qc7 Nh5 Qa8 Nh7 Qca7 Qh3
RQ1n1bbK/nq1B4/N2p1r1p/1r2b3/qpnQ2k1/3N2B1/2NB4/R1N2q1Q b - - 0 1 illegal: No possible last move
2NR1qqB/2R5/r1p1b1RB/qp3BKQ/1N4bN/3p1N1Q/2k2n1b/nn2r3 b - - 0 1 illegal: No proof kernel
1B1N1NQ1/qnq5/1pr1QrbN/pn2Rpb1/3kB1qn/RB2r3/7Q/5KQ1 b - - 0 1 illegal: No proof kernel
2KRn3/r1BQ3n/pR1Q2Qq/1B1Nb3/bBn5/1p3q2/p1BN2b1/kr2qN2 b - - 0 1 illegal: No proof kernel
1r3B1b/qrn1Q2p/B2B4/rq4R1/Bp2pn2/k1NQ1R2/Nn1Kbq1Q/6N1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kd7 g4 Kd6 d4 e5 a4 c5 f5 b5 a5 c4 a6 c3 g5 b3 g6 c2 g7 h3 f6 b2 a7 e3 f7 e2 Bd2 c1N Ba5 h2 Ra3 e4 Kd2 Bg4 Nc3 Nf6 g8Q Bg7 f8B+ Qe7 Rb3 Na6 Bb4+ Nc5 Qc2 b1R Qd3 Nh5 Qf7 Be5 Qf2 Nf4 Ba3 Rb8 a8B Ra1 Bb4 Ra5 Bc6 Rb7 Ra3 Rg8 Qg2 Bh8 Qgg3 Kc7 d6+ Kb6 d7 Nce6 d8Q+ Nc7 d5 Qg7 d6 e1Q+ Kc2 Qd4 d7 Be2 Bbd6 Qef2 Qe7 Ka6 d8N Qa7 Kd2 Kb6 Qb1 Ncd3 Qh3 Nb2 Qbd3 Ka6 Be8 Kb6 Nc6 Ka6 Nb4+ Kb6 Nba2 b4 Bh6 Rf8 Ba4 Rfb8 Qdg3 Ka6 Bf8 Kb6 Nf3 Ka6 Rg1 h1Q Qhh2 Qhg2 Qgh3 Qg5 Rg4 Qb5 Ng1 Kb6 Rg5 Ka6 Nb1 Kb6 Rf3 Kc6 Rgg3 Kd5 Nbc3+ Kc4 Rg5 Qd7 Bb5+ Kb3 Bc6 Ka3 Ba4 Qc6 Qhd7 Qcc5 Qb5 Qc6 Qd3 Qcb6 Bh3 Qb5 Bc8 Rb6 Ba6 R6b7 Bb3 Qad4 Bd1 Qa7 Ba4
1kbq1nn1/NR1Rrpr1/K3b2Q/N1B4B/N7/3Qp1r1/Rn1bQqp1/Q7 b - - 0 1 illegal: No possible last move, all moves rejected
5N2/3p4/1b1q1QQ1/1bnn1B1K/2BB1k1p/3BRR2/1rQp1nqq/Nr1b3N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 a5 e4 f5+ Kh5 a4 b4 f3 g4 h6 b6 h3 c5 d3 c6 a3 b7 f4 g5 f2 b5 d2 g6 a2 g7 f3 b6 h2 c7 Qf6 Qc2 Bc5 Ne2 Rh7 Ng3 Kf4 e5 Ra5 e6 Ra7 e7 Be3 e8B Bd4 Bg6 Ne7 g8B Na6 b8Q Qd6 b7 Nc5 Bgc4 Nd5 Bfd3 f1B Bgf5 Be2 Na3 Bd1 Rf1 h1N Bb2 Nf2 Nh1 Rh8 Rc1 a1Q Rb1 Be3 Bd4 Rg8 Rb2 Rg1 Rb3 Ra8 Qa7 Rb8 Qb6 Qc3 Re1 Qa5 Rc3 Qa6 Rb3 Qe5 Qf6 Qad6 Qa2 Rf1 Nc2 Rg1 Na1 Rf1 Kg6 h5 Qc2 h4 Ra3 Nfe4 Re2 f2 Kh5 Rg1 Rb3 f1Q Qg6 Nf2 Rc3 Ra8 b8Q Qg2 Qbb2 Ba6 c8N Rb8 Ne7 Re1 Qb6 Rf1 Qc6 Rb2 Qf6 Bb5 Ng6+ Kf3 Nf8 Qeh2 Qc8 Rg1 Qe8 Kf4 Qeg6 Re1 Ra3 Nb7 Bc3 Bb6 Bd4 Nc5 Rb3 Ng4 Re3 Nf2+ Kh6 Be2 Ra3 Reb1 Rc3 Bd1 Rb3 Ng4+ Kh5 Nf2+ Be2 Ra2 Rh3 Qf1 Rbe3 Qfg2 Rhg3 Rab2 Rh3 Ng4 Bed3 Nf2+ Rhf3+
K2b4/n1Rpk3/bp2q1Bp/1q2NRB1/Nrb2nr1/2rQ3q/2Q3Q1/2QR3B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 e5 Kd3 e4+ Kc4 b6 Kb5 e3 c4 h3 f4 h6 g4 b3 a4 b2 g5 e2 g6 e1R f6 h2 c5 d3 c6 d2 f7+ Ke7 g7 Ra6 f5 Re4 c7 Rd4 a5 Kf6 Bd3 Ra4 Nf3 Bd6 f8R+ Ke7 f6+ Ke6 f7 Bg3 Ne5 Nc6 Bg6 Kf6 Qc2 d1B Nc3 Rg4 Na4 Ke7 Bg5+ Nf6 g8Q Qe8 Rc1 Be2+ Qd3 Bb7 c8Q Bh4 Rhd1 h1Q Rc3 Ra7 a6 Qh3 Rc5 Ra8 a7 Bf1 Qh7 Rg8 Qc7 Rc8 a8B b1Q+ Nb2 Nb4 Na4 Bd5 Qg7 Nc6+ Ka6 Rb4 Kb7 Bc4 Qc2 Na7 Qd6+ Kd8 Qdd3 Ke7 Rc7 Be2 Be3 Nd5 Bg5+ Ke6 Qc1 Nf4 Bd8 Qf1 Bh7 Ba2 Rc2 Ng2 Qd4 Rb3 Rc3 Bb5 Qd3 Nf4 Qgg3 Rg5 Bg6 Qh3 Rc4 Rc5 Kb8 Qe7 Bh1 Ba6 Qg2 Rg4 Ka8 Rcb5 Rc7 Rc3 Rc4 Qb3 Rc7 Qc5 Bf6 Rb4 Be7 Qb5 Bd8 Bf2 Bh4 Bc5 Bg5 Be7 Re8 Nh5 f8Q Q3c4 Qff2 Nf4 Rg8 Bd8 Rf8 Bb3 Rf6+ Ke7 Qa2 Qe6 Qac2 Bc4 Rf5+
1RR1q3/qnpb1N1B/B1krR3/Q1B2KQ1/q1n2bQ1/3n2p1/R3p3/2r2Nb1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 e5 h4 g5 a4 b5 d4 g3 f4 g4 h5 g2 f5 g3 f6 b3 a5 b2 f7 b4 h6 b3 d6 Qf6 d5 Nc6 a6 Na5 h7 Qe7 a7 Qe8 Rh6 Nf6 Nd2 b1Q Ra2 b2 Ngf3 Qc2 Ba6 b1Q Nf1 Qb8 Ba3 Qa4 Ng5 Nb7 Bc5 Bg7 Rg6 Bh6 f8R Rg8 h8Q g1B+ Ke2 e3 Kd3 e2 Nf7 Bd2 Qh5 Ne4 Re6 Bf4 Qe1 Rg7 Qg4 Rg6 Qa5 Nd2 Rg8 Nc4 Ke4 e1N Kf5 e4 Rf8 Nd8 Rh8 Qb7 Rg8 Rb8 a8B e3 Rh8 Qa7 B8b7 Nb2 Bd3 e2 Bba6 Nc4 Rg8 Rb1 Bc2 Bb7 Rf8 Kc8 d7+ Kb8 d6 Bc8 Bd3 Nb7 d8Q Rc1 Qdg5 Bd7 Bc2 Nd3 Rg8 Bc8 d7 Ka8 d8R Rh6 Rd6 Bd7 Rb6 Nd8 Ke4 Ne1 Rh8 Qf8 Re5 Rd6 Re6 Qe7 Rb3 Qf8 Bb5 Kb7 Ba6+ Kc6 Rb8 Nb7 Bd3 Qe7 Rhc8 Qe8 Kf5 Qa8 Kf6 Qa7 Bh7 Nd3 Kf5
1N1n1b2/1pBBB1R1/4q2R/6bQ/K1p1p1bQ/n1RQ3N/2Q2r1k/2rr1q1q b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 Kg6 Kc2 Kf5 Kb3 c5 a4 h5 f4 e5 g4+ Kg6 d6 h3 a5 h4 d7 h2 g5 Kf5 d5 c4+ Ka4 h3 d6 b3 a6 e3 g6 e2 g7 Kg4 f5 Kg3 a7 e1B f6 b2 f7 e4 Ra3+ Bc3 Nd2 b1R Nb3 Ne7 g8R+ Bcg7 Qc2 Nf5 Na5+ Ne3 Nc6 Qf6 d8Q Bg4 d7 Bh6 Rc3 Qe6 Rg7 Bg5 Qf6 Rh7 d8Q Ra1+ Ba3 Rc1 Be7 Rh6 Qfd4 Rf6 Qdd3 Rf2 Be2 Rd1 Bd6+ Kg2 Bc7 Rc1 Qf6 Rd1 Qg6 Rc1 Qh5 Rd1 Nb4 Nc6 Na6 Nd8 Nb8 Rc1 Nc6 Rc8 a8Q Rb8 Qa5 Ra8 Qh4 Ra7 Qa2 Nc2 Nb8 Na3 Qb2 Ra6 Qbc2 Rb6 Qf5 Rbb1 Qg6 Rd1 Qgh5 Rbc1 Nf3 Bfe7 f8B Bc5 Be7 Bb4 Rf1 h1Q Ng1 h2 Nh3 Qg1 Re1 h1Q Rf1 Bd6 Re1 Kh2 Rf1 Rf8 Rf6 Qf1 Rfg6 Rf2 Rh6 Qe5 Bf6 Bf8 Be7 Bc8 Bg4 Qd6 Be6 Qe5 Bd5 Bg4 Bc6 Qd6 Bd7 Qe5 Bb6 Qe6 Bc7+
KQ3q2/1p5N/1Q2p2n/1prnRqQ1/N1NBr1B1/5b2/2nR2bb/kB4Br b - - 0 1 legal: proof: e4 d5 b4 f5 h4 fxe4 c4 g5 cxd5 gxh4 b5 a6 Qf3 axb5 Qe2 Qd7 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 h5 Kc5 Ke5 f4+ Kf6 d4 h3 g4 h4 a4 c6 a5 e3 g5+ Kf5 d6 Ke4 f5 h2 d5 h3 d7 e2 a6 e1N a7 e6+ d6 Bh6 f6 Qf8 Kb6 c5 d8B c4 g6 c3 d7 c2 g7 Nd3 f7 Kd4 Nd2 Kc3 Ne2+ Kb4 Ra2 Ne1 Nc4 Kb3 Be3 Bf4 Bg1 Na6 Bf6 Rh5 d8Q Rc5 Q1d5 c1Q Rd2 Qb1 Bfd4 Nb4 Nc3 Nec2 Na4 Ka2 Be2 Nh6 g8B Bd7 Q5g5 Bc6 Bg4 Bf3 Bh7 Rac8 a8Q Nd5+ Ka7 Bc7 Nc3+ Ka1 Qb8 Qf1 Qd6 Qd3 Qb6 Qf5 Ka8 Bd6 Nb2 Rc4 Nca4 R8c5 Be5 Rf4 Bed4 Re4 Nc4+ Nc3 Qgd8 Ree5 Q8a7 Nb4 Rg2 Qe8 f8N Qe4 Bdf2 Ncd5 Qab8 Qf4 Bc2 Qf5 Bb1 Nc2 Nh7 Qef8 Qg5 Re2 Be3 Re1 Bgf2 Re2 Rhg1 h1B Rc1 h2 Bg1 Bg3 Rf2 Bhg2 Re1 h1R Bd4+ Nc3 Rd1 Bh2 Rd3 Re1 Re3 Re2 Re5 Re4 Be3 Nd5 Rd2 Qg6 Bef2 Qgf5 Bd4+
b3R3/pp2QQn1/R2R2r1/bq5r/1QnN2Bb/pK6/NNr2n2/k1BqQ3 b - - 0 1 illegal: Other
2b1QQBk/r1r1b1B1/q2B2Q1/7N/1np1K3/N3QRR1/rp3Npn/nr5r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 e4 Kf7 a4 c5 h4 g5 d4 Kg7 h5 b5 h6+ Kh7 e5 g3+ Kf3 g2 a5 b3 a6 b2 a7 b4 d6 b3 d5 Qb6 d7 Qg6 d8N Nf6 e6 Nbd7 d6 Be7 Qe1 Nd5 Qe3 Nb4 Na3 b1R Nh3 g1R Nf2 b2 Rh3 Rh1 Rg3 c4 Bh3 Nc5 d7 Kg8 h7+ Kg7 Bg4 Nb3 Ra2 Rf8 h8B+ Kg8 Bd4 Rf7 Be5 Na1 Bd6 Kh8 Bh5 Qh6 Bd2 Rh7 Bf7 Qg6 Bg8 g4+ Kg2 Rf7 Rf3 g3 Bc1 Rb8 a8Q Rb7 Qa6 Rc7 Qab6 Bg5 e7 Rfh7 e8Q Be7 Qb8 Qf6 Qg6 Ra7 Bc5 Qa6 Ne6 R7h3 Qe4 Nc6 Rc3 Rh5 Nd1 Rg5 Nc2 Nb4 Kf3 g2 d8Q Rgh5 Qb5 Bf6 Bd6 Rhh7 Qf8 Rhb7 Ng7 Rc7 Nh5 Bd8 Ke2 f3+ Ke3 f2 Qbe8 Be7 Raa3 f1N+ Kf4 Nh2 Rg3 Nb3 Bd2 Ra1 Ke5 Ra2 Bh6 f4 Qf3 Na1 Ke4 Rd7 Qf2 f3 Qg1 f2 Raf3 f1R Qe3 Re1 Na3 Rdc7 Nf2 Rb1 Bg7#
3nR3/7r/1kbQ1b1r/BNbBqQ1p/K3BN2/4p1nb/QQp4N/b4Rn1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kd7 Kd2 h5 Kc2 a5 g4 c5 b4 Kc7 f4 e5 b6+ Kb7 d5 a4 f5 a3 d6 c3 Kb3 c2 b5 a2 d7 e3 f6 h3 f7 e2 g5 e1B g6 h2 g7 e4 Qd6 e3 Bg2+ Nc6 Nc3 Ra4 Be4 Bd2 Nf3 Ne7 g8B Ra6 Rf1 h1B Nh2 Qe8 d8Q Bg7 f8N Nf5 Ne6 Rh7 Qf6 Ng3 Qf5 Bf6 Nf4 Qe5 Bgd5 Be1 Rb1 a1B Bd2 Bg2 Rb2 Bh3 Ra2 Bd7 Ra5 c1N+ Ka4 c4 Qde6 Kc8 b7+ Kc7 Qg8 Rb6 Ra8 Nce2 Re8 Ng1 Qf7 Nd8 Qg8 Kd6 b8Q+ Kc5 Qge6 Rc6 b6 Rd6+ Nb5 c3 b7 c2 Qa8 Bc6 Ba5 Bb4 b8Q Ba3 Ba2 Bb4 Qb3 Re6 Qb2 Rd6 Bad5 Ba3 Be1 Re6 Qd6+ Kb6 Kb3 Bc5 Qaa2 Bh8 Bd2 Reh6 Ka4 Bf6 Ba5+
rqknr2R/1b2nBn1/2NQb3/3p4/b2B2NQ/b2Q3K/1pp3B1/N1bB1R2 b - - 0 1 illegal: No proof kernel
RK3Nrr/1Br4Q/bk3p1B/r2Q1R2/rn6/1p2bqB1/4bQnp/1R1B1N2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 b5 Ke4 c5 Ke5 Kc7 g4 h5 a4 f3 d4 b3 e4 f2 d6+ Kb6 g5 h3 a5+ Kc6 a6 b2 d5+ Kb6 g6 b4 a7 h2 d7 c4 g7 h4 d6 c3 Be2 f1R Qe1 c2 Nf3 h3 Bd1 b3 Nd4 Qh4 d8Q+ Kc5 d7 Qg4 Qf2 Rg1 Nd2 b1B Nf1 Nf6 g8Q Nh5 Bh6 c1R Qh7 Bd3 Rb1 Na6 Ne6+ Kc6 Qa5 Bc5 d8B Qf3 Bh4 Be3 Nf8 Nf4 Qd5+ Kb6 Kd6 f6 e5 Ng2 e6 Nb4 e7 Be2 e8B Rc7 Bg3 Bca6 Bc6 Rg8 Bb7 Rg5 Qdg8 Ra5 Qd5 Ra4 Ne6 Rh8 a8R Ra5 Nf8 Rg8 Nd2 Re1 Rg1 h1R Nf1 Ra4 Bc2 Rc1 Bd1 R7c5 Kd7 Rca5 Kd6 Rc3 Kd7 Rc7+ Kd8 Rd7+ Kc8 Rc7+ Kb8 h2 Nd2 Rh8 Rf1 Rg1 Qe1 Qg4 Rf5 Qf3 Nf1 Nh4 Bd6 Rgg8 Qf2 Ng2 Bg3
2R2R2/1n1K4/QNpb4/1r2q1p1/R2Nk1n1/Qp1r2nr/r2rB1N1/R2BBb2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 e4 Kd6 a4 Ke5 d4+ Kf6 h4 b5 h5 g5 a5 f3 Kg3 c6 h6 b3 a6 f2 h7 b2 d6 b4 d7 b3 a7 Qa5 d8Q+ Be7 e5+ Kf5 e6 f6 d5 Qc3+ Qd3+ Ke5 d6 f5 d7 Nh6 Qf8 Bd6 d8R Na6 e7 Nc5 e8B Nb7 Nd2 b1R Nh3 Rb2 Be2 f1R Nf4 Qc5 Ng2 f4+ Kh2 f3 Kg3 f2 Qa6 Rd1 Bh5 f1R Rh4 Rf5 Nf3+ Ke4+ Bf4 Ra2 Nd4 Qe5 Qe7 Rdd2 Rf8 Rb8 a8N Be6 Nb6 Bc4 Bd1 Bf1 Rc8 Rd8 h8R Rf7 Rf8 Rh7 Bf7 Rh8 Bc4 Rh7 Bce2 Rd3+ Kh2 g3+ Kh3 Ng4 Bd2 Nc5 Na4 Rb5 Nb6 Nb7 Be1 Bb4 Re8 Rdd2 Nc2 Kf5 Rb8 Nh2 Rc8 R8d3 Rf8+ Rf7 Rc4 Rf6 Nd4+ Ke4 Qd6 Rff3 Qc5 Ba3 Ra4 Rfe3 Qc1 Bd6 Qb2 Nf3 Kg4 Nh2+ Kh5 Ng4 Kg6 Rf3 Ne3 g2 Qa3 Rh3 Kf7 g1N Ng2 Nh2 Bg4 Ne2 Bh5 Ng3 Bhe2 Qf6+ Ke8 Ng4 Kd7 Qf4 Rc1 Qe5 Ra1
1rQR3K/3r2p1/RBp4p/3rBQBn/1N3r2/5bbn/Nb1Q3N/1Br1kq2 b - - 0 1 illegal: No proof kernel
Q1NN2b1/1pnR1qR1/QB1b2n1/2rpk3/Q3n3/BK1p4/1n1r4/1Q1nN1rB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 f4 Kf6 c4 h5 Kc2 d5 g4 e5 a4 d3+ Kb3 h3 c5 h4 a5 h2 g5+ Ke7 g6 Kf6 c6 h3 g7 e4 a6 e3 c7 e2 a7 e1N Nd2 Nc2 Ndf3 Qd7 Ne5 Na6 Ngf3 Rh4 Ba3 Ne7 g8Q Ng6 Nc6 Qf7 Nd8 Bd6 Qe8 Be6 c8N Nc7 Bg2 Ne3 Qa4 Nc4 Ne1 Nb2 Qb1 Rh7 Rg1 h1R Bf3 Rh2 Bh1 Rg7 Ra2 Rb8 a8Q Rd2 Q8a6 h2 Rg4 Rg8 Rh4 Rg7 Rh7 Ra8 Qb6 Ra5 Qa6 Rg8 Ra1 Rc5 Rg7 Qe8 Rd7 Rg7 Ra2 Bg8 Ra1 Qf7 Ra2 Nh4 Ra1 Rg1 Ra2 Kg7 f6+ Kg6 Ra1 Kf5 Ra2 Ng6 Ra1 Kg4 f5 Kf4 Ra2 Ke5 Ra1 Qe6 f7 Qe8 f8Q Qf7 Be4 h1N f6 Nf2 Bh1 Nfd1 Qe8+ Qe6 f7 Qe7 f8B Qe6 Be7 Qf7 Ra2 Ne6 Qc1 Rf2 Na7 Nc4 Ndc6+ Kf5 Qf8 Nh8 Bd8 Re2 Na5 Ke5 Bb6 Nc7 Qa8 Rf2 Rb2 Rh2 Ka2 b3+ Ka1 Rf2 Nc8 Re2 Rd2 b2+ Ka2 b1N Kb3 Nbc3 Qb1 Ne4 Rb2 Rh2 Rg2 Ncb2 Rg7 Rd2 Nc6+ Kf5 Qb4 Ng6 Nd8 Ke5 Qba4
qb1nRQ2/2n1BBr1/3N1r2/4QN1Q/2R2bk1/pK2B2p/N1p1b1B1/1nr1n3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Ke7 d4 Kf6 Kd2 Kg5 Kc2 f5 g4 a5 b4 c5 e5 h5 e6 a4 e7 c3 e8Q c4 d5 h3 b6 h4 b5 a3 b7 h2 d6 h3 d7 Ra6 b6 Rh7 Qe4 Nf6 Qe6 Ne8 Bd2 Rg7 Be3 Bd6 Qf7 Nc7 Qdd5 Nc6 b8Q Qg8 b7 Nd8 Qf8 Rb6 Bf2 f3 Bg2 Ra6 Qd1 f4 Be3 f2 Ne2 f1N Nd4 Nd2 Nf5 Nf3 Re1 h1R Nd2 Be5 Rc1 Rf6 Nb3 Qh8 Nd6 Kh4 g5 Kg4 g6 Qg8 Re2 Rf1 Nd4 Ne1+ Kb1 c2+ Ka2 f3 N4f5 c3+ Qd5 f2 Kb3 Nc6 d8B Rg1 Be7 f1N Qdf7 Nd8 Qd5 Bd7 Qdf7 Bb5 Qd5 Rh7 g7 Qh8 g8B Rg7 Bf7 Nd2+ Kb4 Nb1 Kb3 Bg3 Qe5 Bf4 Qc8 Rh1 b8N Rf1 Na6 Bd3 Rf2 Be2 Nb4 Rg1 Na2 Qg8 Rd1 c1B Rd4 c2 Rc4 Bb2 Qa8 Bd4 Qb8 Ba7 Qbb5 Bb8 Rf1 Nf3 Rd1 Re1 Rd5 Rc1 Rdc5 Ne1 Qbe8 Nd5 Rc8 Nc7 Q8b5 Nde6 Re8 Nd8 Bg6 Qd5 Bf7 Qa8 Qc6 Kg5 Qb7 Qa5 Qf3 Qa8 Nd4+ Kh4 Qfh5+ Kg3 Qh7 Kg4 N4f5 Nb7 Qh6 Nd8 Qh5#
R1K2QN1/NQ4b1/2n1pRBB/1rn1Rb1q/rkpn4/2pn4/N1b5/1Q3Qr1 b - - 0 1 illegal: No possible last move
nB1Q2rR/n3B1r1/p1p1q1B1/5rb1/2N1R1r1/Q1Q2n1b/2R1KNpQ/1k2b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 h4 Ke5 d3 Kd4 b6 f5 h5 g5 e5 a6 e6 c6 b7 g3 b5 g2 b6 c3 h6 f3 h7 f2+ Ke2 g4 e7 f4 e8R g3 Qb3 c2 Ra5 f3+ Kd2 Nd7 b8Q Qf6 b7 Nb6 Nc3 Ne7 Qa2 Bh3 Nd1 Qe6 Ba3 Nec8 Rc5 Ra7 Ne3 Na8 Nc4 Rg8 h8Q+ Bg7 Be2 f1R Bd1 f2 Bh5 Rb1 Bg6 c1B+ Kd1 Kc3 d4 f1N d5 Nd2 d6 Nf3 d7 Rb5 d8Q Bg5 Rh2 Be5 Ke2 Bd4+ Re5 Bf2 Be7 Be1 Re4+ Re5 Qaa5+ Kc2 Qa3 Rf5 Qhc3+ Kb1 Qbc7 Ncb6 b8B Nc8 Qf4 Rc7 Rf8 Na7 Qh4 Rg7 Rh8 Rc8 Qd5 Rcg8 Qd8 Bg4 Nh3 g1R Nf2 Bh3 Nd1 Rf1 Rf2 g2 Qf4 Rh1 Qh2 Rf1 Kd3 Rf4 Rc2 Rg4 Nf2 Ng1 Nd1 Rf5 Nf2 Nf3 Ke2
QKbr1k2/r4qpR/1bB3NR/1pBNBr2/4nNn1/3n4/1B2b1p1/2nQ2Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 h4 b5 a4 c5 e4 c4 d4 f3 Kg3 b3 Kf4 c3 Ke5 f4 h5 f2 a5 c2 d6 g3 d5 f3 d7+ Ke7 a6 b2 a7 Qa5 d8B+ Kf7 d6 Ba6 h6 Be7 h7 Nf6 d7 Qa4 Bg2 f1B Bc7 f2 d8B Bb4 Be7 Qa2 Nc3 b1R Nh3 Bc4 Nf4 f1N Ncd5 Ke8 Bc5 Bb3 Kd6 Ba5 e5 Nh2 e6 Nc6 e7 Bc4 Bb2 Nhg4 Rh6 c1N Bb8 Rf8 h8N Nb4 Nhg6 Nbd3 Bc7 Rb8 a8Q Bb6 Qa7 Kf7 e8Q+ Kg8 Kc6 Rd8 Bce5 Bc8 Rh7 Qb3 Ra6 Ra1 Be4 g2 Qa8 Ba7 Kc7 Bb6+ Kb8 Qa2 Bf3 Ne4 Qe7 Qb3 Qea7 Rf5 Nge7+ Kf8 Rh4 Ba5 Rah6 Bb6 Rh7 Ra4 R4h6 Ra1 Qa5 Ra3 Qae1 Ra7 Qf1 Ndf2 Qh1 Be2 Qhg1 Nfd3 Ne3 Ng5 Bc6 Qf7 N3d5 Ne4 Neg6+
n2K2R1/Bp1R3R/b5n1/Q2R4/br1nqN1p/1r3Q2/1k2NB1p/bBNn3r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 c5 a4 h5 d4 f5 a5 f3 g5 b3 e4+ Kb4 d6 h3 g6 h2 g7 b2 a6 f4 d5 c4 a7 c3 d7 c2 Ke6 Kb3 d6 f2 e5 Qc7 Bd3 f1N Ne2 Ne7 g8R Bg7 Be3 Ng6 Nbc3 b1R Nc1+ Kb2 N3e2 Qc6 Bf2 Qe4 Ra5 Na6 Rd5 Ne3 Kf7 Bf6 d8R Bd7 e6 Ba4 e7 Nc7 e8N Rh6 Qf1 Nd1 d7 Rc8 Qh3 Na8 Ng7 Rc4 Ne6 Rb4 Ke8 Rh8 Qf3 Rh7 Na2 c1N Bc2 Nb3 Nac1 Nd4 Bd3 Nb6 a8Q Rb3 Qa5 Na8 Rc8 Be5 Rc7 Rh6 Kd8 Bg7 Qg4 f3 N6f4 h4 Qf5 Ra1 Bb1 Rh5 Rg1 Rg5 Rh8 Rg4 Rh7 Bh8 Kc8 Bg7 d8B Bf6 Rcd7 Bg7 Bg3 f2 Bb6 f1B Bf2 Bf6 Ba7 Be5 Nc3 Ba6 N3e2 Ne6 Qg5 Qh1 Rhf7 Nh8 Bc2 Nc3 Qh5 Ka3 Ng2 Rgb4 Ngf4 Qe4 Rg8 Ng6 Na2 Rh1 Nac1 Nd1 Rh7 Ba1 Qf3 Nd4 Bb1 Kb2 Kd8
QrqbRBK1/1bq1NNb1/8/3Q2n1/2p1b1Q1/3B3p/nbpkB3/3rRRQ1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 h5 f4 c5 d4 a5 b6 e3 b7 c3 g5 e6 g6 c2 d5 a4 f5 e2 f6 e1B d6 c4 f7 h3 d7 a3 g7 a2 Qg4 h2 Nc3 h4 Be2 h3 Bh6 Bh4 Rf1 a1B Nf3 Na6 b8R+ Bb7 Ng5 Nf6 g8B Qc8 d8Q Bg7 Qd5 Nh7+ Kd6 e5 Ke7 e4 f8Q e3 Kf7+ Kb3 Qfc5 Nb4 Re1 Ra5 Rhf1 h1B Qcd4 Na2 Qd1 Qc5 Re8 Qc8 Q1d4 Be4 Qd1 Nf8 Bh7 Ne6 Qg1 Rb5 Bf5 Rh7 Kg8 Kb4 b3 Bb2 Nf7 Bd8 Qg4 Ng5 Qc1 Ka3 b4 Kb3 Qb1 Rb6 b5 Rd6 b6 Kb4 Qe6 Rd1 Nd5+ Kb3 Ne7 Kc3 Qd5 Qc7 Bd3 e2 Bg6 Kd2 Bh5 Bgc3 Bf8 Bg7 Rg1 Rh6 Ref1 e1Q Rh1 Ba8 b7 Rb6 b8Q Bb7 Qa8 Qe3 Re1 Qec5 Rhf1 Q5c6 Qh4 Qc8 Bhe2 Q6c7 Qh5 Bc6 Qh4 Rb8 Qg4 Bb7 Qa1 Nc3 Q1a7 Na2 Qag1
r1n5/QBbk4/b3B3/Nn2pKp1/2pqN1R1/bQRb4/R1Qq3B/4B1br b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 e5 Ke3 g5 f4 c5 a4 b5 d4 c4 h4 g3 f5 b3 d6 b2 d7+ Ke7 d5 b4 f6+ Kd6 f7 g2 h5 b3 h6 Ra5 h7 Ra6 a5 Ra8 a6 Qa5 d8R+ Bd7 a7 Nc6 Nf3 Qa3 Nfd2 Ke7 d6+ Ke6 Ra2 Qa6 Rh4 Qa3 Nc3 b1Q Qc2 b2 Nb3 Qa5 Rg4 Qa3 Na5 Bc8 d7 Ba6 Bd3 Bb4 f8Q g1B+ Qff2 Nge7 Bf1 Qb3 Bh3 Nc8 Bd2 Qa1 Be1 b1B Rf8 Bb5 d8B Qbb2 Bb6 Ba3 Rf3 Kd7 Qb3 Nd4 Qc2 Rf8 h8Q Ba6 Qh7+ Rf7 Qb3 Nb5 Qg6 Rh7 Bc5 Rb8 a8B Bd3 Bb7 Ra8 Qb6 Rh5 Qa7 Rh8 Bf1 Rh1 Bh3 Bh2 Qfc2 Qac1+ Kf2 Bg1+ Kg3 e3 Ne4 e2 Be3 Qd2 Bf4 Bb6 Re3 Qd4 Kf3 Bc7 Bh2 Ke8 Rg3 Ke7 Kg4 Kd8 Kf5 Kd7 Bf2 e1B Rg4 Qd1 Bh4 Bf2 Rf3 Be3 Be1 Qd2 Rfg3 Bg1 Rf3 Bf1 Rc3 Bd3 Rg2 Nbd6+ Kf6+ Ke8 Be6 Nb5 Kf5 Ke7 Rg4 Kd8 Bg8 Kd7 Be6+
2qBrRk1/1R2B1Np/q1qr2q1/3n3B/1pQ1NQ1n/1pb2bRQ/6qR/1K6 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 f5 Kd2 Kf7 Kc2 b5 a4 c5 g4 c4 e4 c3 d6 f3 e5 h3 a5 f2 e6+ Kg7 d7 h2 e7 f4 e8R f3 d5 Ra6 g5 Rd6 g6 Bb7 a6 Qa5 d8R Nf6 a7 Rc6 a8Q Na6 d6 Ng4 d7 Rd6 Re3 Kg8 g7 Nh6 Qb8 Qb6 Ne2 Nc7 Nf4 Nf5 Be2 f1Q Nd2 f2 Rb1 Bf3 Nh5 Nh4 Ba3 Nd5 Ne4 Qg2 Qd3 f1Q Re8 Qc6 d8B Qg6 Rb2 Qfg2 Kb1 Qa6 Qc4 Qa4 Qcc8 Qa6 Qh3 c2+ Kc1 Re6 Qf4 Rb6 Reb3 Rd6 Rg1 h1Q Bd1 Q2g4 Rg3 Qgc8 Ra2 Qg2 Rb1 Qc5 Kb2 c1Q+ Ka1 Qf1 Rh2 Qc1c4 Rbb2 Qcc6 Kb1 Qg1 Re5 Qc3 Rf5 Qg2 Rf7 Qcc8 Rf2 b3 Rb7 Be7 Bc5 Bf6 Be2 Re6 Bce7 b4 Rf1 Q3c6 Bd1 Kf7 Be2 Rf8 Rf2 Rd6 g8Q+ Ke8 Qge6 Rg8 Qeg4 Kf7 Ng7 Re8 Rf1 Kg8 Bd1 Qd2 Rff2 Bc3 Rf1 Bh1 Qe2 Bf3 Qc4 Bg2 Bg4 Bf3 Bh5 Qg2 Qd2 Bd1 Rf6 Bg4 Qf4 Bf3 Rf8+
RrR2n1Q/n2Np1kp/B2R1Rq1/b1N1K2b/nn6/2pQ2B1/nq5r/2Q1B3 b - - 0 1 illegal: No possible last move
2N5/NB1pBr2/bbQRNB2/2N3K1/2pq1nQ1/3pn2k/1Rr5/rqr2rQ1 b - - 0 1 illegal: No proof kernel
7b/rp1n1kQN/1q6/4rb1R/Q2r2p1/3BNQRQ/1r3pqr/K1n1BNB1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 g5 h4 f5 e4 c5 d4 f3 Kd2 b3 Kc3 f2 Kb2 g3 e5 g2 h5 g4 d6 f4 h6 c4 h7 f3 d5 Qa5 e6 Bd7 e7 Nh6 Na3 Kf7 e8N Ra6 Ne2 g1R Bd2 Rb6 Ng3 Rg8 h8Q Rg6 Be1 Rb4 Bd3 f1Q Rh5 Rg2+ Nc2 Rg5 Ra3 c3+ Ka1 Re5 Ne3 c2 Nf6 Bf5 d7 Rh2 d8B Bg7 d6 Rd4 d7 Qg2 Nh7 Qb6 a5 f2 a6 Bf6 a7 Bg7 a8Q c1R+ Bb1 Rcc4 Qf3 Ra4 Bd3 Ra7 Bc7 Bf6 d8Q Nd7 Ngf1 b2+ Kb1 Bg7 Qh4 Bf6 Ka2 b1R Qhh3 Rb2+ Ka1 Bg7 Qhd8 Bh8 Qg5 Ng8 Qh6 Ne7 Bb8 Nd5 Qg7+ Ke6 Bd6 Nb4 Bb8 Na2 Bc7 Red5 Bg3 Nc1 Be5 Rh1 Bh2 Re5 Bg1 Rh2 Nd2 Ra6 Ndf1 Raa4 Qa6 Raa5 Qb5 Ra7 Qa4 Ra8 Qe2 Ree4 Ba6 Rd6 Nc4 Ra7 Rg3 Re5 Nce3 Rd3 Qf3 Rd4 Qg5 Kf7 Bd3 Nf8 Qh6 Nd7 Qg7+
2R4B/bpqbRr2/n4rr1/R2K4/p1nR2Q1/B1k2N1r/QN1q3p/2N1rB2 b - - 0 1 illegal: No proof kernel
k1b1NQB1/Q2RNBK1/1Rq3B1/2n5/1r1N4/p3n1b1/1pb1p3/rqBbR2q b - - 0 1 illegal: No proof kernel
1R2b1b1/4nBR1/1r1rB1Nn/5q2/bN1B1p2/R1q2B1k/4pN1p/1r1QQ1bK b - - 0 1 illegal: No proof kernel
1KbQ4/BRr1Rrrk/4QQ2/4bn2/NQ2pr2/1qRqn1pp/3NbB2/1B6 b - - 0 1 illegal: No proof kernel
R4qB1/K1B3NN/3r1rRn/4R2b/Q2p1p1k/4r1RQ/3QBp1q/1r1nbn2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 g4 a5 e4 h5 b4 f5 b6 d5+ Kb5 h3 c4 h4 c5 a4 c6 a3 c7 d3 e5 d4 b7 d2 Kb6 h2 b5 a2 e6 f3 e7 h3 e8Q f2 Na3 Qd7 Nf3+ Kf4 g5 Kg3 g6 Rh6 Nc2 Na6 b8R Bb4 Ng5 Qd8 Ne3 Nc5 Rg1+ Kh4 Nh7 h1R Rg3 h2 Be2 Ra3 Ra8 Nb3 Qc6 Qe8 g7 Rf6 Qc2 d1N Qd2 Nh6 g8B Bd7 c8Q Qf8 Rb1 Ba5+ Ka7 a1R b6 Be8 b7 Bh5 b8R f4 Qa4 Rf1 Rb5 h1Q Re5 Qh2 Bb2 Re1 Bc3 R3a2 Rb2 Rb1 Bb4 Raa1 Bd6 Ra3 Bc7 Raa1 Qc1 Nd2 Rb6 Nf1 Rd6 Rb6 Qd2 Rab1 Rde6 Rd6 Qcd7 Rf5 Reg6 Bb4 Nd5 Ba5 Ndf6 Bb4 Ne8 Rff6 Ng7 Ba5 Ba6 Re3 Be2 Bc3 Qd3 Be1 Qd2 Re4 Qc8 Re3 Qh3+
NB1nb2K/2Q5/2RnQ1q1/B2Bp1q1/rr3bBN/1p1nnp1N/6Rk/Q1b5 b - - 0 1 illegal: No proof kernel
1rR1nBq1/1b5N/Q5qb/2Kp1B2/1nQ2R2/3Qnk1n/1B2p1pr/3NQNr1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 g5 h4 d5 b6 e5 c5 a5 b7 e3 Kd3 a4 f5 e2 f6 e1R f7 a3 c6 a2 c7 Bd7 c8Q Re4 b5 Nc6 b8N Qb6 Ne2 g3 Nbc3 Kg4 h5 g2 h6 g1N h7 Nh3 Qa6 Bh6 f8B Kf3 Bb2 g4 Qe1 g3 Nd1 g2 Rc1 a1Q Ng3 Bc8 Nd7 Bb7 Nf6 Rb8 Rc4 Qd8 b6 Qe8 Rc2 Qg6 Qc4 Qa8 Qa6 Ng1 Rh4 Nh3 Rc4 Re2+ Re4 Rc2 Rc3 Rc1 Rc2 Nd8 Rc8 Nc6 Qc4 Nge7 Qa6 Nf5 Qc4 Nd6 Qa6 Rg8 h8Q Ne8 Qh7 Rh8 Qc7 Ra1 Nh7 Rb1 Qd6 Ra1 Qdb4 Rc1 Qbc4 Rb1 Kc2 d3+ Kb3 d2 Bd3 Nb4 Nf1 Rc1 Rh4 e4 Rg4 e3 Bf5 e2 Ka4 Ng1 Kb5 Nh3 Kc5 Ra1 Nf2 d1N Qd3+ Ne3 Nd1 Qg8 Qac4 Qa6 Rh4 Ba8 b7 Qag6 Rc6 Rc8 b8Q Bb7 Qa7 Rb8 Qaa6 Q6g7 Rc8 Ng1 Nf2 Rb1 Qed2 Rd1 Nf6 Bf4 Ng3 Qg6 Qdc1 Rh5 Nh7 Bh6 Rd4 Rf1 Qe1 Rh2 Nd1 Nh3 Rg4 Rfh1 Nf1 Rg1 Rf4+
2Q1B1B1/n2bN2Q/1nRb3K/3p4/rQ2qQ2/k1bq2p1/qNqp2R1/3rB2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kd6 h4 a5 e4 f5 c4 g5 c5+ Ke5 h5 d3 b6 Kd4 e5 Kc4 e6 g3 b7 f3 Ke3 f2 h6 g2 b5 Kb4 b6 a4 e7 g4 Kf4 d2 Kg5 g3 h7 a3 c6 a2 c7 f4 Na3 Nf6 e8B Ra4 Qf3 Bd6 Nh3 g1Q Bc4 f1Q Kh6 Qff2 Bg8 Nd5 Rh2 Qge1 Nc4 Nc6 b8Q Na7 b7 Qe4 Nb2 Nb6 Rg2 Qde7 Qa8 Qc2 b8Q Qee4 Qab7 Qfe2 Nf2 Qe2c4 Qg4 Ka3 Nh1 Qf7 Rb1 a1B Qh4 Qa2 Qc6 Ba6 c8N Bb5 Qc4 Bc6 Ne7 Bb5 Qbc8 f3 Qf4 f2 Qd4 Qad5 Qdc4 f1Q Qb4+ Ka2 Be6 Rf8 h8Q Qfd3 Bg8 Q5b3 Qh7 Qbc4 Nd1 Bc3 Ba3 Bc6 Rc1 Q4b3 Qe5 Rf1 Nb2 Rd1 Qf4 Qbd5 Qa5 Bb5 Bc5 Q5c4 Bd4 Ka3 Bf2 Qa2 Be1 Bc5 Qaa6 d5 Qab7 Bd7 Qbb8 Bd6 Qbb7 Qcb1 Rc2 Ba5 Rc4 Qbc2 Rc6 Bc3 Qbb8 Na8 Qb5 Nb6 Qb4+
K3b3/3nq1NR/R1Qn1b1p/B1B3N1/p1Q1r1kn/3pqB2/BN6/1R1b2nr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 d3 g4 d6 c4 h3 g5 d2 b6 h2 g6 f3 b5 f6 b7 f2 b6 Ra6 c5 Bg7 c6 Ra7 c7 Qe7 Nf3 Nd7 b8R Nh6 b7 Nf5 Ba3 Nh4 Qc2 d1B Bg2 f1N Nbd2 Ne3 Qc6 Nef5 Bc5 h6 Nc4 Re8 Nb2 Ra6 Re1 h1N e3 Bh8 g7 a4 Ra8 Rb6 b8B Rb7 Rb1 Nhg3+ Kd3 Rb3+ Kc4 Ne2 e4 Ng1 e5 Re3 Kb5 Re4 Re2 Ba6+ Ka5 Bb5 c8Q Rf8 g8B+ Rf7 Q6b7 d5 Ra6+ Nd6 Ng5+ Kf5 e6 d4 Qbc6 d3 Bc7 Kg4 Rf2 f5 Rf1 Qe8 e7 f4 B7b6 Qf8 e8N f3 Ng7 f2 Re1 Rf3 Ba2 Qe7 Qg8 f1Q Qc4 Qe2 Bd8 Nf6 Kb6 Nd7+ Ka7 Qe3 Ka8 Rh3 Ba5 Rh1 Rf1 Nh3 Rf7 Ng1 Nh5 Bc3 Rh7 Bf6 Ng7 Nf8 Qb7 Be8 Qc6 Nd7 Bf3+
1rR1RQ2/1NQ1N1K1/1rnB3p/pB1bn3/1BQR1r2/1p2q2B/1b6/2qk2br b - - 0 1 illegal: No proof kernel
Bb3N1R/1Qq1Nr2/Rq3prQ/1qR1B1nk/2b1p1q1/1b3p2/2B2QnK/3R4 b - - 0 1 illegal: No possible last move, all moves rejected
2Q3b1/4Q1r1/k2bBpn1/1R1K2p1/1QpRN3/1Rb4q/r2qnnNR/1BB2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 a5 b4 g5 d4 c5 h4 Kc7 e5 Kb6 d5 a4 d6 g3+ Kf3 c3 Ke4 f3 d7 g2 e6 f6 h5 a3 h6 c2 e7 a2 e8B c4 h7 f2 Bg6 Bd6 Qe2 Nc6 Nf3 g1Q Bh3 f1B Kd5 Na5 Nc3 Qf8 d8R Qg2 Ne4 Nh6 Rb1 a1B Rh2 Bd4 Ne1 Ng4 Rb3 Rg8 h8Q Nf2 Be6 Qh3 Ng2 Rg7 Qg8 Ka7 b6+ Ka6 b7 Bc3 b8R Nc6 Rb5 Ne5 Qe1 Qe8 Qf8 Qd7 Qe7 Ra7 Be3 Qc7 Rc5 c1N b5+ Kb7 b6 Ba1 Rcb5 Bb4 Nc3 Ncd3 Kd4 Nf4 Bg8 Be6 Bc1 Ra2 Bb1 Ka6 b7 Qa5 b8Q Neg6 Rdd5 Bd6 Qbe8 Rb2 Ne4 Ra2+ Qc3 Be5+ Kc5 Ne2 Rd4 Bd6+ Kc6 Qb4 Qd2 Qbc3 Qb8 Qcd3 Qb4 Qd2 Qbd8 Bc3 Qdc7 Bd7+ Kd5 Be8 Be6 Bf7 Qcd8 Bg8 Qc8#
BN1Q4/1b3bn1/1rNkp2b/RR2r1bq/1N4R1/pn4Q1/q2p1B1q/N2KQ3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 f4 h5 c4 d5 g4 Kd7 c5 h3 f5 e3 g5 e6 g6 h4 g7 d3 f6 e2 f7 h2 b6 h3 c6+ Kd6 b7 d4 b5 a4 c7 a3 b6 Nc6 b8Q Nf6 g8R Ra5 b7 Ne8 Nd2 Re5 Ngf3 Na5 Rg4 Bh6 Bg2 Nb3 Rb1 Ng7 f8N Qe8 Nd7 Qh5 Nc5 Rd8 Rg1 h1Q Na6 h2 Nb4 Bd7 Bb2 Be8 Bc3 Rd7 c8Q+ Rc7 Rf1 Bf7 Qg8 Qg1 Qbd8+ Rd7 b8N h1B Ba1 Qgh2 Bc3 Na1 Nb3 d2+ Kf2 d3 Qe1 d1Q Nfd4 d2 Ndc6 Qc2 Bd4 Qa2 Kf3 Rb5 Bf2 Rb6 Rg1 Nc2 Na1 Nd4+ Ke4 Nb3 Kd3 Q5h4 Rg5 Qh5 Bf3 Bg2 Ra5 Bh1 Rg4 Bg2 Qc1 e1B Ke2 Bh1 Kd1 Bg2 Be3 Bh4 Bf2 B4g5 Rb2 Rb5 Qb1 Re5 Qe4 Bh1 Qe1 Bg2 Nd4 Bh1 Ba8 Bb7 Ndc6 Bf4 Qh4 Bfg5 Qg3 Re7 Rc2 Re8 Rcc5 Rd8 Rcb5 Rc8 Nd8 Rc6 Qe8 Ra6 Ndc6 Rb6 Qd8+
QbRrRKB1/4N2Q/3Np3/krBBb2b/3qNp2/8/pQ3qNn/r3nr2 b - - 0 1 illegal: No proof kernel
Bq3R1B/n2R2NK/1Nqp1r1p/1b1n1rQB/4q2b/2r2Nr1/Q3Qp2/2B4k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 a5 b4 a4 g4 f3 g5 d3 e4+ Kd4 c4 h3 g6 d2 c5 Ke3 c6 Kf2 e5 h6 g7 h2 b6 a3 e6 a2 c7 Ra3 b7 Be7 b5 Nf6 g8Q Rc3 b6 Nc6 b8Q Nd5 b7 Bh4 e7 Na7 Qg5 Rg8 e8N f6 Ng7 d6+ Kg6 f5 Bg2 f4 Qa8 Bd7 c8B Bb5 Bg4 Qb8 Na3 Kg3 Qc2 d1R Qe2 f2 Nf3 f1R Nc4 Rf8 Rg1 h1Q Kh7 Rf5 Nb6 Rdd3 Rb1 Rf2 Rf1 a1Q Rb2 Qa6 Ra2 Qh3 Bh5+ Qg4 Ra4 Rf6 Rc4 Qa4 Rc7 Qc4 Rd7 Qc6 Ng1 Kh2 Bh1 Nc8 Qaa2 f3 Bg2 Na7 Bh1 Qa8 b8B Qd4 Bc7 Qb8 Bd8 Rf5 Bf6 Qe4 Ne6 Re3 Bh8 Red3 Bg2 Re3 Bh3 Kh1 Ng7 Rg2 Rf2 Rg3 Rf1 Qee8 Rf2 Re6 Bf1 Ref6 Bg2+ Kh2 Rf1 Qe4 Rc7 f2 Re1 Qf4 Qe5 Qcc4 Rd7 Nb4 Ba8 Qc6 Nf3+ Kg2 Qe3 Nd5 Qed2 Qd4 Re8 Kh1 Qe2 Qe4 Rf8
3KR1bQ/qbBn3q/p4RpB/1Bb3Rr/R2r3n/2N1b3/p1k3nQ/5QN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Ke7 b4 Kd6 e4 Ke5 h4 Kd4 h5 c5 d6 f5 h6 g6 d3 g3+ Kf3 g2 e5 c4 b5 c3 e6 a3 h7 a2 b6 a6 b7 c2 e7 Qc7 e8R Ne7 Nc3 Nd7 Bd2 c1B b8Q Qa7 Rh4 Bb7+ Ne4 Nd5 Nc3 Be7 Qc7 Rd8 Rh5 Bf8 Rg5 Be7 Rb1 Bf8 Rb6 Ne3+ Rc6 Be7 Be2 Bf8 Qf1 Be7 Kf2 f3 Kg3 f4+ Kh4 f2 Qb8 f3 Rb6 Nf8 d7 Bc5 Qh2 Nf5+ Kg4 Nh4 Bf4 Be3 Rf6 Ra8 d8B Nd7 Bdc7 Rd8 Qe1 f1N Qd1 Rg8 h8Q f2 Qb1 Nd2 Qf1 Ndf3 Bd1 Rg7 Ba4 Ne1 Bb5 Rf7 Rgf5 Rh7 Bh6 Re7 Rg5 Re5 Qe2 f1B Qf3 Bf2 Qd1 Ke3 d4 Bc4 d5 Bb3 d6 Bg8 Qf3+ Kd2 Qf5 Bfe3 Qf1 Rd5 Re4 Kc2 Ra4 Nb8 d7 Rd4+ Rf4 Rc8 d8R Nd7 Re8 Rd8 Nge2 Rd5 Rf6 g1Q+ Qg3 Qg2 Ng1 Qh1 Qh2+ Neg2 Rh5 Qb8 Qg3 Nf4 Rf7 Ne5+ Kg5 Nf5 Kf6 Qa7 Bg7 Ng2 Rff8 Qh3 Qh2 Rd4 Rf7 R8d5 Bf8 Nd7+ Ke6 Nd6+ Ke7 Nf5+ Kd8 Qh4+ Rf6 Qh3 Rg5 Qh7 Rg4 Nh4 Bh6 Rh5 Rg5
Q2rqkNQ/3R3R/p1pq2r1/R2b1n1B/3nBb1q/q2n4/Q1Q2pN1/2BK4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 h5 d4 f5 g4 a6 e4 f3 g5 f4 g6 c3 g7 h3 d5 h2 d6 c2 b6 h4 d7+ Ke7 b7 h3 e5 Qe8 d8R Rh6 e6 Rg6 b5 Nh6 g8Q Nc6 b8Q Nd4 b6 c6 b7 Nhf5 Nd2 Bh6 Ne4 f2+ Kd2 Bg5 Ne2 f3+ Nf4 Bh6 Bc4 f1Q Bd5 f2 Ra5 Qg2 Rd6 Qg3 Nf6 Qa3 Be4 Bd7 Qa7 Rd8 b8Q Bg5 Qb2 Bh6 Qh7+ Kf8 Qa2 Bc8 Rd7 Qd6 Ba3 c1N Qdc2 Nd3 Kd1 Bg5 Ng2 Bf4 Bc1 Qa3 Rf1 h1Q Qa8 h2 Ng8 Qg1 Qh4 h1Q Qh8 Qh4 Re1 Qgh2 Re3 Qf6 Rh3 Qe5 Rhh7 Qh4 Rdd5 Qee7 Rd7 Q7d6 Rb7 Bd7 Ra7 Be8 Rad7 Bf7 e7+ Ke8 Rh5 Bd5 Rh6 Kf7 e8B+ Kf8 Bf7 Qe8 Rh7 Rg7 Bh5 Rg5 Rdg7 Rg6 Rd7
2RKnnN1/5B1p/Q1q1b1r1/3R4/7r/BNR1p1kQ/1p1nQ3/1Qnqr1bB b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Kc5 Kf4 d4+ e3 g4 e5+ d6 b5 a4 b3 a5 b2 d5 b4 g5 c6 g6 b3 a6 e4 g7 h3 a7 h2 Nd2 b1Q Ra3 e2 Nh3+ Kg4 f4 e3 f5 Qa1 f6 Kg3 f7 e1R Qe2 Ba6 Nf4 Nh6 g8B Qaf6 Bg2 Bc4 Ng6 Nf5 Ne7 Ng7 d7 Ne8 d6 Be6 Bb2 Bh6 f8Q Bf4 Bf7 Rg8 Qh6 Rg6 Ng8 Be5 Rf1 h1N Rf5 Nf2 Bh1 Bf4 Rd5 Ne4+ Kc4 c5 Kb5 c4 Qhh5 Qde7 Kb6 c3 d8Q c2 d7 c1N Qc8 Bd6 d8R Qd7 Qca6 Qf1 Rc8 Qc6+ Ka5 Nd7 Qh3+ Kf4 Qad3 Nf8 Qb1 Rb8 a8Q Rb4 Qaa6 Be5 Bd4 b2 Nb3 Nd2 Bc5 Qf3 Na1 Re4 Rc3 Bb8 Ba3 Qg4 Qh5 Kg3 Nb3 Qf3 Qh6 Rh4 Qh5 Kh3 Qh6 Bh2 Qh5 Kg3 Qhf5 Qa4+ Kb6 Bg1 Qh5 Qfe4 Qh6 Qc2 Kb7 Qd1 Qhh5 Nd6+ Kc7 Ne8+ Kd8 Qb5 Qhf5 Qc6 Qh3+
1b6/1kQ1n2p/2bqR1p1/pqRrQ1Q1/1r2qNb1/1RB1Rq2/4Bn2/1N2NK2 b - - 0 1 illegal: No proof kernel
1R2K3/BRQRN1p1/1qnp3Q/b2NRr2/3pb3/2n2n1q/k4r1b/2Nb1BB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 f6 c4 a4 b4 g3 h5 g2 b6 f3 h6 a3 c5 f2 h7 a2 c6 d6 c7 Nc6 b5 Be7 b7 Ra5 b8R Bb7 c8N Qb6 Nc3 Bd8 Qc2 Nge7 Be3 Rf8 h8Q Nd5 Ne7 Bc7 Rb1 a1N Qh6 Nb3 Rh5 Rf7 Rd8 Ra2 Rd7 Nd2+ Kd3 Nf3 Ke4 Qc5 Rb2 Ba5 b6 Ba8 b7 Qb6 b8B Rf8 Nh3 g1B Ba7 Bh2 Rb1 Rb2 Na2 Bb7 Nc1 Nc3+ Kd3 Rb5 Kc4 Rf5 Nf4+ Ke5 Nfd5 Ba8 Bh3 f1B Bg1 Bg2 e4 Bf1+ Qd3 Be2 Bf1 Bd1 Qc2 Nd8 Rh4 Rh5 Nc7 f5 Rf4 Nh4 Bg2 Qb8 Ng8 Nd5 Rf7 Bb7 Kb5 Rg5 Rf3 f4 Re3 f3 Rbb3 f2 Re7+ Kf4 e5 f1Q+ Re2 Qf3 e6 Qh3 Bf1 Rf5 Re5 Nf3 Qc5 Ba8+ Qb6 Qb7 Rf7 Qb8 e7 Nc3+ Ka6 Bc6 e8R Ba8 Qc6 Qb4 Qd7 Be4 Rb2 Qc5 Rb7 Qb4 Qhe6 Rg2 Qh6+ Ng5 Rfe7 Rf2 Nd5+ Kf3 Qc7 Qb1 Ndf6 Ke3 Nd5+ Kd2 Rf8 Kc2 Ref7 Bb4 Kb6 Kb2 Rfe8 Nf3 Ref8 Ne6 Kc6 Nd8+ Kd7 Nc6 Rfb8 Ka1 Rfe7 Ba5 Ke8 Qb6 Rd7 Kb2 Nge7 Ka1 Nb3+ Ka2 Nc1+
2b1b1NK/3N2pn/pQ2p2B/2b2N1N/r2R1R2/b1kR3B/Qnn3q1/1rB3q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Ke6 b4 Kd5 h4 Kc4 b6 d5 b5 d3+ Ke3 e6 h5 a6 f5 d4+ Kf4 e3 h6 g3 h7 e2 b7 e1N b6 g2 f6 Qd7 Kg5 Qe7 Kg6 Qd6 f7 Nh6 Ne2 g1B Ra4+ Qb4 Nbc3 d2 Ne4 d3 Nd4 Ng8 Ng3 Ra7 Nh5 Bh2 Bh3 Be5 Rf1 Nf6 Nf5 Bf4 Qe2 Be7 f8N d1Q Nd7 Bfd6 Rf4+ Kc3 Rd4 Rf8 h8R Nc6 b8Q d2 b7 Nh7 Qc7 Qb3 b8B Nd3 Qb6 Ba3 Bf4 Qa2 Bh6 Qg1+ Qg2 Rf7 Rd8 d1B Rf4 Bg4 Rad4 Ncb4 Qd5 Qb2 Qa2 Rc7 Rf2 Rf8 Rff4 Re8 Kf7 Rc4 Kg6 Bf8 Kf7 Bf3 Kg8 Bc6 Kh8 Bc5+ Nf8 B8b7 R4d5 Be7 Qa7 Rd4 R8d7 Rb8 R7d6 Be8 Nd7 Rc4 Qc5 Ne1 Rd1 Nbd3 Rdd4 Bf8 Qc7 Kb4 Rd2 Qc3 Rd1 Qd2 Qc6 Qdg2 Rd2 Nb2 R2d3 Nd1 c3+ Ka5 Qd6 Ra4 c4 Nc2 c5 Kb5 c6 Be7 Qdd5+ Bec5 c7 Ka5 c8N Kb5 Nce7 Bc8 Nfg3 Ka5 Qdc4 Rb1 Ngf5 Nb2 Qd5 Rc4 Qc6 Kb4 Rd2 Kc3 Ng8 Rb4 Qb6 Ra4 R2d3+
2NK1kQr/2R1p3/QBbb4/q1Q1qB2/pN2R1q1/1b2B3/1pqr2Q1/1Rn2n2 b - - 0 1 illegal: No proof kernel
1NRn1N1Q/1r2p1p1/B2B1qnb/2qB3K/3Rpb2/1k3rQ1/1qbqRN2/4R3 b - - 0 1 illegal: No proof kernel forced: wxDB
2Nnr3/2Kpb2q/6bN/1B1pQrR1/1b1p1RN1/b1N2k2/R4rn1/qB2BQ2 b - - 0 1 illegal: No proof kernel
B2Q1Nr1/2p2pb1/3Nq1p1/1RB2knn/N4B2/1R2r1b1/R1q2Qn1/1b1n1K1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Ke6 d4 a5 h4 a4 d5+ Kf6 e5+ Kf5 h5 g3 h6 g2 h7 f3 d6 c3 b6 c2 d7 a3 e6 g6 b7 a2 b5 Ne7 b6 Bh6 Rh3 Bg7 Na3 Bf8 Nc4 Rg8 h8B Nd5 e7 Ra3 e8B Bg7 Qd4 Ne3 Ne2 g1N Bg2 Qe7 d8Q Qe6 Bc6 Nd1 Bh1 f2+ Kf1 Re3 Nc3 Nd7 b8R Nf3 b7 Ng5 Na4 Nf6 Ba3 c1B Bc5 Nh5 Qd2 Bcb2 Qe1 Bbe5 Nd6+ Kg4 Rf3 Bg3 Rf5 Bd7 Rd5 Kf4 Rd3 Bc8 Rb3 Bd7 Bcf3 Bb5+ Qe2 Bd3 Bd5 Bb1 Qb2 Bd4 Be5+ Kg4 Bf4 Bg7 Kg2 f1N Qf2 Nh2 Kg1 Nhf3+ Kf1 Nh4 Ra8 Re5 b8N Ng2 Nd7 Re4 Nf8 Re3 Nc8 Kf5 Ra5 Bc2 Rab1 a1Q Ba8 Qa2 Ra1 Qb2 Ra2 Bb1 Rab5 Qc2 Nd6+
R2Qb3/bp1q2kn/1bQn1rp1/2Rnq3/B1Q4K/3B3p/Br3B2/RNb1N3 b - - 0 1 illegal: No proof kernel
2rQ4/p1k3rQ/1qn1q2R/pp5b/Q2Qn1N1/3NRB2/1K1N1b2/r2qBr1R b - - 0 1 illegal: No proof kernel
kQN5/p1QBBQ1b/1q1p3r/1R6/1K3p2/Nnn1Q3/4N2r/rRr1bnqR b - - 0 1 illegal: No possible last move
1b2Nrk1/3NqBB1/Knr5/n2p1pQ1/4N2B/1R1Qn1Bb/2p1R2n/b2b3R b - - 0 1 illegal: No proof kernel
rR5N/3B3R/Q2p3R/3n1kn1/KB3rN1/N2p1b2/2Bbp1bQ/bB1rq2r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 h5 c4 a5 Kc2 h3 Kb3 d3 c5 h2 c6 h4 g5 h3 b6 e3 f5+ Ke5 c7 e6 b7 e2 f6 e1R g6 Bd6 g7 Ba3 f7 Bb4 f8N Nc6 b8R Qh4 Ng6+ Kf5 Nf3 e5 Qe2 e4 Nfe5 Nf6 g8B Rd1 Ka4 Nd4 Bb3 Bd2 Na3 Nd5 Bc2 Rf8 b4 Qe1 b5 Nf3 b6 Bb7 c8B Ng5 Ng4 Rf6 Nh8 Rf7 Rg1 h1R Rg3 h2 Rh3 Rf8 Rh6 Rf6 Bb2 Rf7 Bc3 Rf8 Kb5 a4 Bb4 Rf6 Rc1 Rf7 Bb1 Rf6 Rc7 Rf7 Nc4 a3 Bh3 a2 Na3 a1B Bg2 Ba6+ Ka4 Rf6 b7 e3 Bf3 Rf8 Qf2 Rf6 Qg3 Rf7 Qd6 Bc4+ Qa6 e2 Bc2 Ne3 Bc6 Bd5 Bb1 Bf3 Bd5 Rf8 Bb3 Nd5 B3c2 Ke4 Rc5 Rf4 Rc7 d6 Rch7 Rf1 Bd7 h1B Rf8 Bhg2 b8Q Rg1 Qb7 Rf1 Rb8 Rh1 Qba7 Rf1 Qf2 Rh1 Re6+ Kf5 Qg1 Ne4 Qh2 Ng5 Reh6+
4r2R/brpQ2k1/q2np3/Q1R1Bbr1/QBN3B1/8/2R1pNnb/K1br1Q2 b - - 0 1 illegal: No possible last move
1NKnBR1Q/4Nrrb/2pRRB2/p1b5/4Qkq1/p2b1pr1/5B2/3NBnn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 g4 h5 b4 f5 d4 h3 e4 h4 d6 a3 b5 h2 b6 h3 b7 Qd7 d5 Nh6 Qa4 Ra7 Be3 Ra6 Nc3 Ra7 Nd1 Qd8 d7 Ra6 d6 Ng8 Ke6 Be7 e5 Nc6 b8N Ra7 Bf2 f3 Ne2 f4 Qe4 Nf6 Nd4 Nh5 Bb5 Ng3 Nf5 Rf8 Re1 h1R Ra2 h2 Rd2 Rf7 Re3 Bf8 Ne7 Ba6 Rd4 Qe8 d8B Rf1 d7 h1B Rd6 Ne2 Be1 f2 Rf3 Kh4 g5 Kg4 g6 Rg1 g7 f1N g8Q+ Rg7 Ba4 Bd3 Qh8 Rg3 Qeh7 Qh5 Ng8 Qh4 Rd4 Bb4 Rd6 Qh5 Bh4 Rh3 d8B Qg5 Bhf2 Bc5 Be7 Bg2 Kd7 Ng1 e6 Rg3 Kc8 Nd8 Bc6 Bh3 Qe4 Qh5 Bd7 c6 Bh4 Qg6 e7+ Qf5 e8R Bg2 Qe5 Bh1 Re3 Bhe4 Rf8 f3 Bf6 Rb7 Qe6 Kf4 Be8 Rbf7 Ne7 Qg4 Re2 Bh7 Re5 Qg5 Qd5 Qg6 Ree6 Qg4 Qe4+
b7/rbN2p1B/1R1qB1k1/pN2n3/rQRB3p/p1R1b1B1/Q2n3K/3nNr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 c5 d4 a5 g4 h5 Kg2 a3 b4 h3+ Kh2 c4 e4 c3 b5 c2 g5 h4 d6 f3 b6 f2 d7+ Ke7 d5 Qe8 d8R Qa4 e5 Ra6 b7 Nf6 g6 Qe4 g7 Ng8 e6 Kf6 d6 Qg6 d7 Ne7 g8B Nd5 e7 Kf5 e8N Bc5 Qd4 Nc7 Bb2 c1N Bc4 f1R Nf3 Qf6 Nc3 Nb3 Rc1 Nc6 b8B Nb5 Bg3 Bb7 Be6+ Kg6 Nc7 Ra7 Ne1 Ne5 Rc8 Nd2 Qb4 Be3 d8Q Rh7 Rb8 Rg7 Qd5 Qe7 Rg1 Qd6 Qa2 Ba8 Rb6 Bb7 Ne2 Nc3 Nd4 Nd1 Ndb5 Ba8 Bd4 Bb7 Rcc6 Ba8 Kh1 h2 Kg2 h1B+ Kh2 Bg2 Rc3 Bgb7 Rc4 Kf6 Rg2 Rg4 Rf2+ Kg6 Rf3 Bf2 Rb3 Be3 Rbc3 Nb2 Rcc6 Nbc4 Qbb3 Qd7 Bc5 Nb2 Qa4 Rb4 Bd4 Qd6 R6c4 Nd1 Q4b3 Ra4 Qbb2 Bf3 Qb4 Bfb7 Bh7+
3k2Q1/R1RbB2r/rq1bBR2/4Qbp1/N1Kp1p1R/pBn5/2N3r1/2n3qQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 a5 c4 g3 h4 g2 e5 f3 h5 f2 e6 a4 h6 f4 b6 Ke7 b5 Rh7 b7 Nc6 b8Q Na7 b6 Nf6 c5 Rh8 c6 Bd7 h7 Nb5 c7 Be8 c8R Ra5 b7 Qd6 Nf3 g1Q Rh6 Ra8 Rc7+ Bd7 Ne1 Qa6 Nc3 Ng4 Nc2 Qb6 Bh3 f1R Rf6 Rf2 Qc8 Rh2 b8Q Rg2 Qe1 Ra6 Ba3+ Qc5 Qe5 Qd6 Qa8 Nf2+ Kd2 d3 Qc6 Bg7 Qg8 Bf8 Qb7 Ke8 e7 d4 Be6 Qb6 Bb4 Rg4 Qh1 Rg2 Rc1 a3 Na4 Nc3 Ra7 Ne2 Bc5 Nd1 Bd6 Ndc3 Bb3 Qb7 Bb4 Bf5 Bd6 Kd7 e8B+ Kd8 Bef7 Bd7 Bfe6 Qb6 Qg6 Be7 Bc5 Bd6 Qg7 Re8 h8R Rf8 Rh3 Rh8 Rh4 Rh7 Qf7 Bc7 Bf8 Bd6 Qg8 Ra5 Na1 Ra6 Rc2 Nc1+ Qe2 N3a2 Rcc7 Nc3 Nc2 Qe3+ Ke1 d2+ Kf1 d1B Qb5 Bg4 Qe5 N3e2 Ke1 Qg1+ Kd2 Na2 Kd3 Nac3 Kc4 Nc1 Qe3 Bh3 Qe5 Bf5 Be7+
nkb1B1N1/1r2R1n1/K2Rqb1R/NQ1p3Q/p2Q4/p3p3/Rn1q2r1/2N1Bq2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Kd2 d5 f4 Kd7 b4 Kc7 c4 a5 g4 h5 b5 e5 f6 d3 Kc3 h3 f7 h4 g5 h2 c5 d2 b6+ Kb7 g6 e4 f5 e3 f6 a3 g7 a4 Kb4 h3 Kb5 Ra7 c6+ Ka8 c7 Kb7 Ne2 Rh7 Ra2 Ne7 g8N Bg7 f8R Nd7 f7 Rh8 Re8 Nf5 f8Q Qf6 Qb4 Qe6 Re7 Bf6 Qd4 Ng7 Bb2 Rh4 Nc1 Rg4 Bc3 Rg1 Q1g4 d1N Nd2 Nb2 Ndb3 Ka8 Be1 Ba6+ Ka5 Rg3 c8R+ Kb7 Rg1 h1Q Rc6 h2 Bb5 Qg2 Rd6 h1Q Qe2 Qhh2 Rh1 Qf1 Qed1 Qhe2 Rh6 Rg2 Bc6+ Kc8 b7+ Kc7 Bb5 Qef2 Qh5 Q2e2 Re8 Nb6 Bd7 Na8 Re7 Kd8 b8Q+ Bc8+ Ra6 Qef2 Qb5 Rb7 Rd6 Kc7 Be8+ Kb8 Ka6 Qd2 Na5
1q2Nrq1/N1Bbb1R1/r1B1npr1/3p1B1p/b2Q2RR/k7/R1pn2N1/2K3Q1 b - - 0 1 illegal: No proof kernel
8/2b2RN1/n1N1p1Q1/2Qrr1R1/1Rq1BN1p/1rBbp2N/1p1k3n/qq1B2K1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 a4 Kf6 g4 b5 f4 c5 Kf2 h5 f5 b3 d6 h3 g5+ Kf7 d7 b2 g6+ Kf6 d5 Ke5 a5 h4 g7 b4 f6 h2 f7 c4 a6 b3 d6 c3 a7 c2 Nc3 b1Q Nh3 b2 Rg1 h1Q Ne2 Nf6 g8Q Qb6+ Be3 c1R d8N Rc3 d7 Qb4 Ne6 Rh5 d8N Qc4 Qg6 Na6 N2f4 Rb3 Ng7 e6 Be2 Bd6 f8R Bc7 Rf7 Ng4+ Kf1 Rf5 Qc1 Nh2+ Kf2 Rab8 a8B R8b5 Bd1 Rd5 Ra4 Bd7 Rb4 Bb5 Rg5 Qa1 Bd2 Kd4 Qc2 Rfe5 Nc6+ Kc5 Bc3 Qe1+ Kg2 e3 Be2 Qeb1 Bd1 Qd4 Qcf5 Bd3 Kg1 Qc4 Nb8 Rd8 Be4 Rdd5 Nc6 Qd4 Rb7 Kc4 Rb8 Qc5 Bd4 Qb5 Ba7 Kc3 Bd4+ Kd2 Rb7 Rd6 Rb6 Qc4 Rb4 Ra5 Qb5 Rd5 Qc5 Re5 Qb6 Rad5 Qa5 Qbc2 Qc5 Qcb1 Bc3+
N2kBr2/1q1bbR1R/p3R3/2N1R2p/1QKB4/Q1n1rp1n/3QB1pq/5nr1 b - - 0 1 illegal: No proof kernel
2bqNKnr/4N1p1/2RQ1B1B/1nQb4/r2Q1p2/1qp1k3/1Bpr1bR1/1B3R2 b - - 0 1 illegal: No possible last move, all moves rejected
1n1q1RNB/b4pKQ/BQ1r1npn/1Nr2p2/3N4/R1B2R2/p3k2b/qR1b4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 e6 Ra4 exf5 Ra2 Be7 Ra1 Bf8 Kf2 Ke7 Kg3 Kd6 Kf4 Kd5 e4+ Kc5 Ke5 d5 c4 a5 b4+ Kb6 h4 g6 c5+ Kb7 b6 Kc6 h5 a4 b7 a3 b5+ Kc7 b6+ Kc6 h6 d3 h7 Kb5 c6 Kc4 c7 d4 Bd2 g3 Bc3 g2 Nf3 g1B Rh3 Bd7 c8N Bh6 Ne7 Nf6 Ng8 Ra6 Qd2 Ba4 Qh2 Bf8 Ra2 Bc5 Rf2 a2 Na3+ Kb3 Nb5 d2 Be2 d3 Nfd4+ Kc4 Rff3 d1Q Rhg3 Ra5 Qh5 Na6 b8R Qa1 b7 Bh2 Qh6 Bd1 Qh4 Qd7 Rf8 Qc8 b8Q Qd8 Qb6 Nb8 Bf1 Be2 Qh6 d2 Qh4 d1N Qh6 Nd5 Qg7 Nf2 Qh6 Ne7 Kf6 Ng4+ Kg7 Nd5 e5 Ndf6 e6 Ra6 Qh4 Nh6 e7 Ra5 e8R Ra6 Rd3 Bd1 Re1 Ra5 Rgf3 Ra6 Qb7 Ba7 Qh5 Rd6 Qb6 Bb3 Rb1 Bd1 Bb4 Kd5 Ra3 Ke4 Rfb3 Kf4 Bc3 Ke3 Bg2 Nhg4 Bb7 Nh6 Ba6 Bc2 Re8+ Qe7 R3b2 Nhg4 Nh6 Bd1 Rf2 Rf8 h8B Kd3 Rf4 Qd7 Re6 Rc8 Ng8 Qd8 Re8 Rc5 Qh7 Nh6 Rf8 Ke3 Nc6 Kd3 Rf3+ Ke2 Ncd4+
1Q1Qb2b/R3pR1K/N5Np/1RpQq3/n1n5/1n1R1rB1/2kqBr1p/1B4r1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 g4 a5 f4 c5 b4 h3 f5 a4 f6 c3 b6 e3 b5 e2 b7 Kd3 f7 h6+ Kg6 a3 b6 a2 g5 c2 Nc3 h2 Nh3 Bg4 Nf4+ Kd4 Nb5+ Kc4 d4 Kb3 d5 e1N d6 Bg7 f8R Nf6 d7 Ne4 Rf7 Rf8 Kh7 Nc3 g6 Bh8 g7 Nf3 g8B Na4 Ng6 Nc6 b8R Nfe5 b7 Nc4 Nc7 N6a5 Na6 Bh5 Be2 Qc7 d8Q Qe5 Rhf1 Kc3 Bf4 c1Q Bg3 Qd2 R1f6 Nb3 Rf3+ Kb2 Qh1 Kc2 Rd3 Ra7 Qhd5 Ra8 Rb1 a1R Rc8 Ra7 b8Q Ra8 Rc7 Ra7 Rg7 Rf3 Rf7 Rb7 Rd7 Rb6 Rb7 Rbf6 Ra7 Rf2 Qa5 R6f3 Qad8 Nd4 Rbb7 Nb3 Rb5 Rg1 Rf8 Ncb6 Qe6 Kc1 Nf4 Be8 Ng6 Nd4 Qc6 Kc2 Ba2 Nb3 Qcd5 Nc4 Rf5 Rff1 Rf7 R1f2 Bb1+
Q2qBn1N/BpR1bN2/pq5R/4k3/1Br1rn2/BRp3Qp/Q1q4r/5K1b b - - 0 1 illegal: No proof kernel
1rn2N1k/Qp2rp1q/1Q1N4/1b3Q2/2B1q1r1/1nBp1p2/NN5R/2b1bRRK b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 d5 Kg2 g5 e4 b3 c4 b2 a4 g4 h4 d3 a5 d4 c5 d2 h6 g3 h5 Ne7 e5 Qc7 h7 Ra7 h6 Qb6 e6 Qd6 c6 Ng8 a6 Bd7 c7 Qa3 e7 Qe3 Bc4 Qe4+ Nf3 Bb5 Rf1 Nd7 Nc3 b1Q Bb2 Nc5 Na2 Nb3 Kh1 d3 Qc1 d1R Qe3 Re1 Bc3 Qd1 Qb6 g2+ Kh2 g1B+ Kh1 Ra8 a7 Rb8 a8Q Be3 Qaa7 Bc1 c8N Qde2 Rg1 Qf5 Nd2 f3 Rb1 Qee4 Nd6+ Kd7 e8N Ne7 Nc7 Nc8 Ne6 Rg8 h8R Ke7 h7 Rg4 Ra1 Bg7 Nf8 Bd4 Rb1 Kf6 Rf1 Kg7 Rg1 Ba3 Rd1 Re3 Rdf1 Bc1 Rg8+ Kh6 h8Q+ Qh7 Qe5 Re1 Qf5 Bf2 Rh8 Re3 Be6 Be1 N2c4 Re2 Nb2 Re3 Bc4 Re2 Bd2+ Kg7+ Qh5 Qg8 Rh6 Qgh7 Qf5 Kh8 Rh4 Qe8 Rh5 Re7 Rh2 Qc6 Bb4 Qe4 Bc3+
R1n1N3/Np1pBk1r/1b2Rp2/Qr1B1b1N/K2n1q2/p2Q1N2/1QBq4/4q2r b - - 0 1 illegal: No proof kernel forced: wxLB
2Q2nb1/p2B4/1p1q4/BnQR1Q2/BbNr1p1q/b1p2R2/Q1q3k1/K3N1rR b - - 0 1 illegal: No possible last move, all moves rejected
2N4Q/pQ1r1N1r/1p1n3B/1pq3nR/bb1R2N1/3Q4/1pB4q/QK1Bkqr1 b - - 0 1 illegal: No proof kernel
2Q2NKn/pB5p/4N2b/RN1RRQp1/pn3rq1/3kr2Q/4b2B/R2q2br b - - 0 1 illegal: No possible last move
2r4b/qr2r3/1R1R1Q1n/6NR/1Q2pnp1/p1p2b2/NN1r1B1Q/3bkBKQ b - - 0 1 illegal: No proof kernel
1q1Qnn2/1n2R2B/3r2b1/1Q1rNNN1/1rpN2pB/Qp1B1p2/7n/1KbR3k b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kc2 f5 a4 b5 e4 g5 h4 c5 h5 c4 a5 f3 a6 g3 h6 g4 h7 f2 a7 g2 Nd2 f4 Ngf3 g1N Nb3 Bf5 Ne5 f3 Kb1 Na6 Qd3 Nc5 Bg5 Ne2 Bh4 Nb7 Qe3 Nf4 Bd3 Bh6 Rd1 Rb8 a8B f1N Ra7 Bg6 Qc1 Nf6 Qa3 Re8 h8Q Re6 Qe8 Nh2 Qc6+ Ke7 Qca6 Rd6 Q6a5 Qf8 Qa6 Rbd8 Qb6 Rc6 d6+ Ke6 d7 Ne8 d5+ Kd6 Qba5 Ne6 Nd4 Bc1 Qa6 Kc5 d6 Qh8 Q6a4 Nf8 Q4b3 Kb6 Qba4 b3 Q4b4 b2 Qbb3 Rdc8 d8N b4 d7 Kc5 Ndf7 Rd6 d8Q Rd5 Ng5 Rc6 Qba4 Rcd6 Qa6 Na5 Re7 Nb7 Nef7 Qg8 e5 Qh8 e6 Qe5 Kc2 b1R Q6a4 Rc6 Qa6 Qb8 Ne5 Rb3 Rh7 Rcd6 e7 Nf6 e8N Rb1 Nc7 Ne8 Nf5 Rb3 Re7 Rb1 Ng3 Kd4 Nce6+ Ke3 Nd4 Kf2 Ngf5+ Kg2 Qb5 Ra1 Qaa5 Ra4 Kb1 b3 Qaa6 Rb4 Qa3 Nc5 Bc6 Nb7 Bd7 Nf1 Be6 Kh2 Bg8 Kh1 Rd2 Nh2 Bh7 Kg1 Rd1+ Kg2 Bf1+ Kh1 Bd3+
n1R2KBq/5n2/1rBpp3/1Nn2Bpk/R1Q5/RN3N1p/1br1r2Q/1n2Bb2 b - - 0 1 illegal: No proof kernel
nR2qrR1/Nr1N1b2/pQ1nr3/Nbp3K1/2R5/bQ2Q2B/pbp4k/2Q1B3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 dxc4 h5 f5 exf5 g6 Qe2 gxh5 Qd1 h4 Ke2 Kf7 Kf3 Kf6 Kf4 h5 g4 c5 b4 e6 d4 c3 d5 a6 d6 a3 d7 c2 b5 h3 b6 a2 b7 h2 Ne2 h4 Bh3 Ra7 Na3 Ne7 Bd2 Qe8 d8Q Nd7 b8Q Rb7 Nc3 Bg7 Qb6 Rf8 Nc4 Bh8 Re1 h1R Re4 Re1 Na5 Re2 Qb3 Nb6 Rb1 Na8 Be1 Bd7 Rc4 Bb5 Qc1 Nc8 f3 Nd6 g5+ Ke7 g6 Kf6 g7 e5+ Kg4 e4 g8R Ke5 f6 e3 f7 Bg7 Kg5 Bh8 Bf1 h3 Bg2 h2 Bh3 h1B Rb2 Ba4 Nb5 Bg7 Na7 Bb5 Rh4 Bg2 f4+ Ke4 f5+ Kf3 Rb1 Bb2 f6 Ba3 Rc4 Bh1 Bf5 Kg2 Bh3+ Kh2 Qd8 Bd5 Qb6 Rf2 Rb2 e2 Qce3 Rf4 Rb1 Re4 Qc1 Re6 Qbe3 Qc8 Rb2 Rfe8 f8N Qb8 Nd7 Rf8 f7 Qe8 Bh4 e1B Rb3 Bc3 Be1 Qb8 Rb1 Bcb2 Qb3 Rc8 f8Q Rce8 Qf6 Rf8 Qff3 Qe8 Qbe3 Rh6 Qb3 Bf7 Qfe3 Re6 Qbd3 Bf6+ Kf4 Rb8 Qc6 Ba4 Qb5 Bh8 Kg5 Rb6 Rbb4 Bhb2 Qb3 Rb8 Qb7 Bc6 Rb6 Bb5 Qc6 Rc8 Rb8 Rc7 Qb6 Rb7 Qec3 Kh1 Qd4 Kh2 Qde3
1rRQn3/B1pRb2N/1B6/b2r4/1qbrNK1p/4pQp1/Br2Q3/1Nn3Bk b - - 0 1 illegal: No proof kernel
4Qk2/2r1qNbb/1RBnrR2/KN3Q1p/1r1R3q/pp1B2r1/n5pB/5RN1 b - - 0 1 illegal: No proof kernel
B1k2RnQ/1r4R1/6q1/b4rpq/N1npQB2/qR1K1RQp/2p4B/1q1b2N1 b - - 0 1 illegal: No proof kernel
2qQ1R1Q/5p2/1R1r1r2/K1p2nB1/2qk1p1B/3nb2Q/BNBNR1p1/n1nb4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 g5 h4 a5 e4+ Kd6 d5 Ke5 d6 g3 b6 a4 b7 g4 d7 g2 h5 a3 h6 c6 b5 a2 h7 g3 b6 Ra7 Ba3 Bc5 Qb3 Qe7 d8B Qe8 Rh6 Ra4 Bh4 Qf8 Ne2 g1N Nc1 g2 Nd2 Na6 b8Q+ Nc7 b7 Bg4 Qd8 Ra6 b8R Be3 Bae7 Ne6 Kb4 c3 Bc4 Nc5 Beg5 c2 Rc8 Rb6+ Ka5 Ne2 Bd5 Kd4 e5 Ne7 e6 Bh5 Nd3 c1Q Nb2 Nf5 e7 Qc4 e8B Nd3 Re1 c5 Ba4 Nec1 Re2 a1N Rg6 Rg8 h8Q+ Rf6 Qa3 Qe8 Bc2 Qc6 Rb8 Qc8 Rb6 Re8 Rg8 Re6 Rf8 Bg4 Qa4 Rd6 Qad7 Ng3 Qf5 Bf3 Qh3 Nf5 Bc6 Bg4 B6a4 Bh5 Bab3 Bf3 Ba2 Bg4 Rf2 Bd1 Re2
1n1Br2Q/2qRp3/3rpkbp/1Q2n3/2B2nq1/K1BNQ1N1/nR1bp3/3NN3 b - - 0 1 illegal: No proof kernel
3nbQ1Q/pN6/2NKB1Q1/q4BBR/3p1pr1/1qNQ4/q4pnq/2k1br1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 d5 g4 h5 c4 f5 e4 d3 b4 d2 c5 d4 b6 h3 b5 h2 c6 f3 b7 h4 b6 f2 c7 h3 Bc4 Bd7 c8B Nh6 Be6 Be8 Ra5 Bb4 Nc3 Rh7 Bcd7 Nc6+ Kd5 Kf4 b8Q+ Ke3 g5 Re7 g6 Ng4 b7 Kd3 Qf1+ Kc2 e5 d1Q Bg5 f4 g7 Kc1 g8Q Rg7 Rb5 Qa5 Nf3 Nd8 Qd3 Re7 Rc5 Ne3+ Kd6 Ng2 Qgg6 Rh7 Ne1 Qb3 Bf5 Rh4 e6 Rg4 e7 Qba2 Qc8 Rb8 Bde6 Qb3 Qc7 Rc8 b8N Qaa2 Nc6 Rb8 Rg1 h1Q Qc8 Qh2 Rh1 Qa5 Qh6 Qba2 Qf8 Qg3 Qca6 h2 Qb6 Qf3 Qba6 Qd1 Qc8 Qdb3 Qca6 Bd7 e8Q Rb6 Qg6 Be8 Qh3 Rb7 Qad3 Rb8 Qhh8 Rb5 Rg1 h1Q Rf1 Qh2 Rh1 Rb8 Nf3+ Kb2 Nfe5 Rb7 Nf7 Re7 Bc4 Re1 Bce6 Rf1 Ne7 Nc6 Nd8 Kc1 Nb7 Nd8 Nc6 Kb2 Ne2 Be1 Nc3 Kc1 Re5 Q5a4 Re3 Qa6 Rh3 Q6a5 Rh5
1B2BKR1/6Np/2N2pR1/r7/2q4p/pbRp1B2/4bQn1/NQbnNnrk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 c4 Kg3 b4 a5 e4 f3 c5 f2 e5 f6 e6 a4 c6 d3 e7 d2 Kd6 a3 c7 Ra5 b6 Ra8 b5 Nc6 b7 Nh6 b8Q Qe8 b6 Ng8 b7 Qh5 Qe2 d1N Nf3 Ra5 Rh3+ Kg4 Ne1+ Kf5 Bf4 Ne5 Nd2 Qg4 Nb3 Nh6 Rc3 Rg8 g3 Rg6 Bg2 f1B Qf2 Nd3 Bf3 Be2 Rb1 Bg7 e8B Rg5 Ke7 d5 Rb2 d4 Na1 Be6 c8N Bb3 Be5 Rg6 Nd6+ Kg5 Ra2 Nf4 Nf5 Ng2 Rd2 Qe4 g4 d3 Ra2 Qc4 Rac2 Bh8 Ng7 Nf5+ Kf8 Ng3 Bd6 Nf1 Rd2 Re5 Bc7 Kf4 g5 Rh6 g6 Rh5 Qa8 Rg5 b8N Rg4 Qb7 Rg3 Bb6 Ra5 Nc6 Rgg5 Ba7 Rg4 Qfb6 Kg3 Qf2+ Kh2 Bb8+ Kh1 Qbb6 Bc2 Qb1 Bb3 Ne6 Rgg5 g7 Rg4 g8R Bg7+ Ke7 Bh6 Ng7 Bg5 Rb2 Bc1 Kf8 Ba2 Rb5 Bb3 Rg5 Rg3 Bg4 Nge3 Rg6 Rg1 Bh5 Ng2 Bf3
kB4K1/1bR3p1/6p1/1nq1N1RR/3Q2B1/NRpQr2r/pn1Qpb1N/rb6 b - - 0 1 illegal: No proof kernel
3qbr1R/3R1Q1n/k1Q1R3/2p1nR2/1bB5/3ppqqp/p3N1BN/rQ2B2K b - - 0 1 illegal: No possible last move
R1R1N1QQ/NK2br2/2nBpq1Q/q1ppn3/1pN1Bk1R/1n3p2/8/1r1b2N1 b - - 0 1 illegal: No possible last move
QKB1bn2/4RNp1/B6p/BNr3b1/2RpR3/2bQ1r2/N2pq1np/1k2qR2 b - - 0 1 illegal: No proof kernel
1qr1q1Br/Q1R2p1b/2p3kb/1Q4p1/2R1Q2p/2R2N1K/n2p1q1B/1Qn1N1N1 b - - 0 1 illegal: No possible last move, all moves rejected
Q6r/1K1Rp2q/1NBp1RN1/B1p1Qpnr/Q1q3b1/p1b1R3/3k1B1b/4nR2 b - - 0 1 illegal: No proof kernel
R1K1b2Q/2n1pqk1/2pB4/B2q2N1/8/3Q1R1p/NprpQbn1/BBr1R1n1 b - - 0 1 illegal: No proof kernel
1b1qr1k1/1N1RN1r1/b1Bq2B1/1b1R2QK/1b1B3p/n1q3B1/2Bbn3/3R3B b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 cxb5 g5 a5 c4 a6 Nxa6 d4 c3 d5 Nb8 d6 Bxd6 hxg5 Bf8 Kf2 f5 Kf3 Kf7 g4 d5 b4 h5 e4 a5 e5 a4 g6+ Kg7 b6 d4 b7 a3 g5 c2 e6 h4 b5 a2 e7 d3 e8B d2 b6 Qe7 Bb2+ Qf6 Bd4 c1B Na3 Qe5 Nb5 Na6 b8R Nh6 b7 Kg8 g7 Nc7 Bd3 Qd6 Nh3 Ra7 Bc6 Bd7 Qe2 d1Q Bc2 Bd2 Rd8 Qe1 Rb1 a1B b8B Bac3 Rb2 Bb4 Qe7 Bc8 Rb1 Ba6 Rd7 Qc1 Rd1 Qb2 Qe3 Qc3 Ra1 Be7 Ra5 Bf6 Ng1 Be5 Ne2 Rb7 Ng3 Ra7 Na3 Nb5 Nc4 Na3 Rd5 Rb7 Na5 Bb5 Kg2 f3+ Kh3 f4 Nf5 f2 Bc7 Ra7 Nb7 f3 Qf4 Ba6 Qg4 f1B+ Qg2 Bfb5 Ne7+ Kf7 g8B+ Kf8 g6 f2+ Qg3 Nf5 Kg4 f1Q Bh7 Qfd3 g7+ Kf7 Bb8 Re8 g8B+ Kf8 Qe3 Ng3 Qg5 Ne2 Be4 Bef4 Bgh7 Bg3 Bhg6 Be5 Nf5 Kg8 Kh5 Bh2 Re7 Qd8 Bg3 Qd6 Bh1 Qd8 Be1 Bb8 Red7 Qg3 Nc5 Rc7 Nb7 Qd6 Bg3 Qc8 Rd8 Rg7 Rd7 Qd8 Ne7+
1R1n3Q/3NR1Kn/k1Bp4/r1qr4/2b1bNbn/4N3/bN1N1Nr1/1r1R3B b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 Kd3 a5 Ke4 d3 Ke5 a4 h4 d2 e4 a3 c4 g4 b4 g5 c5 a2 b6 g3 c6 g4 h5 g2 b5 g3 b7 Nf6 h6 Qb6 f5 Kd8 c7+ Ke8 h7 Qe3 b6 Qa3 Nh3 g1N Bg2 f1B Nf2 Na6 b8N Ne2 b7 Nb4 Nc6 Ng1 b8R Bd3 Ne7 Ra5+ Nd5 Rf8 h8N Nh7 f6 Nc6+ Kf5 d6+ Kg6 Kd7 f7 Qc5 Ne3 Nd8 Kg7 Kc6 e5 Be4 Ng6 Be6 c8N Bg4 Qe1 d1B e6 Bb3 Nb6 Kb5 e7 Ka6 Nd2 Bc4 Rc1 a1R e8B Rb1 Na4 Ba2 Bc6 Re8 f8N Re5 Rh6 Rd5 Bh1 g2 Rh4 Rg5 Nd7 Rd5 Nfd1 f2 Nab2 f1B Nf2 Bfc4 Nf4 Nf3 Rd1 g1R Rh6 Nfg5 Re6 Rg2 Re7 Nf3 Qg1 Nh4 Qh2 Ng6 Qh6 Nh4 Qf6 Bg6 Qf8 Be4 Qh8
2rN1N1N/1q5n/NB1NK1R1/p7/r2Rpb2/qBNq1k2/bnr5/3Rq2Q b - - 0 1 legal: proof: b4 b5 e4 d5 h4 f5 a4 fxe4 c4 g5 cxd5 gxh4 axb5 c5 Qc2 cxb4 Qb3 Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 h3 g5 e3 b6 e6 b7 h2 g6 e2 g7 e1Q Ra4 b3 Be3 b2 Ne2 h4 Nec3 h3 Na3 b1R Bc4 Na6 b8N Nc5 Bb3 Ra1 Na6 Nf6 g8R Nh7 Rg6 Bh6+ Kg4 Re8 f4 Nd3 f5 Bf4 f6 Nb2 f7 Qe7 Rg1 h1Q f8N h2 Qb1 Qd2 Rd1 Qhe1 Qe4 Qd3 Qh1 Qb7 Rb4 Bd7 Rc4 Rac8 Nab5+ Ke7 Rb4 Ra4 d6+ Kf7 d5 e5+ Ne6 e4 Kf5 Rc7 Bb6 Rec8 Rd4 Be8 d7 Qeg3 Qg1 h1Q d8N+ Ke7 Qg2 Qhe1 Nf8 Bf7 Nd6 Rcc4 Qh1 Qge3 Nb1 Rc2 Nc3 Bg8 N8f7 Qc1 Ne6 Qa1 Nh8 Qa3 Ne8 Kd7 d6 Kc6 Nf8 Bc4 Nf6 Bd5 d7 Kd6 Kg4 Ke5 d8N Bg8 Ne8 Bd5 Nd6 Bg8 Bc4 Bf7 Bb5 Bb3 Bc4 Ba2 Bb3 Bc1 Kh5 Kf4 Kh6 Bd2 Kh5 Ke3 Kg4 Kf2 Kf5 Bf4 Ke6 Ke3 Qh2 Kf3 Qh1+
1B1BKB2/p1qp1n1n/k6q/N2N1b2/1R1p2rq/3QR2r/4R3/B3rBqB b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 h4 gxh4 b4 e5 c4 exf4 c5 b5 axb5 Bd6 Qc2 Bc7 Qd1 Bb6 cxb6 Ke7 Qd2 Kf8 Qd1 Ke8 Kf2 f5 Kf3 h5 e4 h3 g4 h2 b7 h4 b6 h3 b5 Qf6 g5 Kd8 g6 Qf8 g7 Nc6 b8B Qb4 b7 Qa5 b6 Qa2 e5 Qa4 e6 Na5 Ne2 Nc6 Bb2 Qc4 Nd2 Nf6 g8B Nh7 Ra2 Qc5 Rg1 h1Q+ Rg2 h2 Ba1 Qg1 Nb3 h1Q Qd3 Qh4 Bd6 Qgh1 b8B Bb7 e7+ Kc8 e8R+ Nd8+ Re4 Qc7 Nc3 Nf7 Nd5 Bc6 Re6 Kb7 Ra4 Qh6 Bb4 Q1h4 Rge2 Bb5 Na5+ Ka6 R6e3 Bc4 Qa3 Bd3 b7 Bb1 Bf8 Bc2 Rb4 Bd3 Kg2 f3+ Kg1 f2+ Kg2 f4 Kf3 Bf5 Qd3+ Qc4 Bbd6 Re8 b8B Re4 Qb1 Qc7 Bde7 Re6 Bg5 Rg6 Bd8 Rg4 Qb3 Be6 Ke4 f3+ Nf4 Bf5+ Kd5 Qc1 Qc3 Qc2 Kc5 Qc1 Nd5 Qc2 Bg2 f1Q Bh1 Qcc1 Qc2 f2 Qc3 Qg1 Qc2 Ne5 Be6 f1R Kd6 Re1 Qb1 Qhh2 Ke7 Qc7 Ke8 Qhg3 Bf7 Qgh4 Bg6 Nf7 Qd1 Be6 Bge4 Bf5 Beg2 Rg3 Bf1 Rhg8 Rbb2 R8g4 Rb4 Rh3 Qd3+
N1n5/B1NqrN2/b1n1rnn1/R4q2/1NNkrR1b/5B1B/2n2r2/1K1Nb1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 g5 a5 g6 f3 b6 a4 b7 h3 g7 f2 c5 h4 c6 a3 c7 d3+ Kb3 h2 Ka2 f4 b5 f3 b6 d2 Bc4 f1R Qb3 d1R Qc2 d4 Nc3 d3 Bb2 f2 Rc1 d2 Qd3 h3 Bb5 Ra4 Kb1 Rh6 Qc2 Re6 Be2 Rde1 Bf3 Bb4 Qd1 Kd4 e5 Nc6 b8N Qd7 b7 Nge7 g8N Ng6 Nh6 Re2 Qe1 d1N Nf7 Ne3 Na6 Nc2 b8N Ba5 Nb4 Ba6 c8B Re4 Ba1 a2+ Kb2 Bd8 Nd1 Bh4 Rb1 Re7 e6 Ra3 Kc1+ Rc3 Bb2 a1B Ba3 Rc5 Rb2 Rf5 Ra2 Bc3 Kb1 Rf6 Bc1 Bd2 Ra5 Bc3 Qe2 Re1 Qf1 Bd2 Qg2 f1Q Qg5 R1e2 Qg4 Bde1 Be3+ Kc4 Ba7 Rf2 Bg2 Qfd3 Nf3 Qf1 Rg1 h1N Bb7 h2 Bh3 Qfd3 Rf1 Ng3 Qg5 Nf5 Qg1 h1N N3e5+ Kb3 Ba8 Nd6 Nc4 Nc8 Bb7 Ng3 Ba8 Qb7 Nd7 Nh5 Ndb6 Qbd7 Bb7 Qf3 Na8 Qf4 Ncb2 Qf5 Nc4 Re8 e7 Rfe6 Re5 Nf6 Ra5 Rg8 e8N Rg7 Ndb2 Kc3 Nec7 Rfe2 Rf4 Rf2 Ncb6 Kd4 Nd1 Bb5 Ba6 Bf1 Be2 Rh7 Bf3 Ba6 Ne5 Rhe7 Nf7 Qh5 Nc4+ Qc5 Ncb6 Qf5 Nc4+
2N2K1N/b1n4N/1RbB1R2/B5b1/N1qr2n1/2r1n1n1/kn2q1Bp/nQ1N1N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 a2 c5 h2 c6 h3 c7 d2 Qg3 d1Q Qh4 d3 Nc3 f2 Bd2 f3 Bg2 f1N Nge2 f2 Ng3 Bd7 c8N Ra3 Qh7 Qe2 Nd1 Bc5 Ba5 Nf6 g8N d2 Nge7 Ne3 Ng6 Nc2 Nf1 Na6 b8B Nc7 b7 Ba7 Kd6 Qg8 Ke7 Qgc4 e5 Rd8 e6 Bc6 Nh8 Rd4 Kf8 Ng4 Rg1 h1N e7 h2 e8N Ng3 Nf6 Qe3 Rc1 a1B Rb1+ Ka2 Rb6 Qee2 Qd3 Rc3 Nh7 Bb2 Qf5 Na1 Qg6 Nd5 Bd6 Nc7 b8N Ba3 Nd7 Bc1 Nfe3 f1N Nc5 Rdd3 Na4 Rd4 Nd5 Nfe3 Rf1 Bb2 Rf6 Bc1 Nf2 d1N Qe4 Nb2 Nd1 Nef5 N5e3 Bd2 Nf1 Bg5 Qd3 Nfe3 Qb1+
BnBk2qb/1Kb1RqB1/2nB1q2/q2B1NNq/Q7/1B3rrp/6b1/2RN2q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Ra5 b7 Ra3+ Nc3 Qa5 c7 Bd7 c8B Bc6 Rb1 a1B b6 Bb2 Be2 f1Q Bh6 f2 Nf3 Rh7 Rg1 h1Q Ng5 Qhg2 Qa4 Rh8 Re1 Ba1 Kd2 d3 Ke3 d2 Bc4 d1Q Bb3 Qh5 Nd1 d4+ Kf4 d3 Re4 Nd7 b8B d2 Bd6 Nb8 b7 Qc4 Ke3 Qcf7 Kd3 Qf6 Kc4 f1Q+ Re2 Q1f5 Rge1 Bd4 Re3 Bb6 Rc3 Qf5g6 Rc1 Bc7 Re3 Qgf7+ Re6 Nd7 b8N Ba8 Nc6 Nb8 Nd4+ Bc6 Nb2 d1Q Nf5 Qdg1 Nd1 Rh7 Bb7 Kd7 e8B+ Kd8 Ba8 Ne7 g8B Bg7 Bd7 Bh8 Bc8 Bb7 Bg7 Nec6 Ba2 Rf3 Bb3 Qa6+ Kd5 Qa5+ Ke4 Rh6 Re7 Rg6 Bd5 Qe8 Bge6 Qef7 Bb3 Qa2 Bed5 Qg8 Nh7 Rg2 Ng5 Rgg3 Bdc4 Ba6 Bc2 Nd4 Bf7 Bf1 Bfe6 Qc4 Bb3 Bg2 Bf7 Qcc3 Bfc4 Qff7 B4e6 Qa6 Kd5 Qb2 Kc5 Qa1 Bed5 Ndc6+ Qd4 Q6a2 Kb5 Qd2 Qc4 Qaf6 Qa4 Nd7 Ka6 Ndb8+ Kb7 Qa2 Qb4 Qa5 Qa4
NbN2R2/r1Nr1q2/3nb3/2n2NnQ/4R1bB/1Br3np/rbkB1N2/2N1K3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 g4 Kf6 b4 Ke5 c4 h5 g5 f5 g6 a5 b6 d5 b5 h3 c5 h4 c6 d3 b7 Kd4 e5 a4 c7 h2 e6 h3 b6 d2+ Ke2 f3+ Kf2 f4 g7 a3 e7 a2 e8N Qf6 Bd3 Na6 b8B Rh7 b7 Ne7 g8N Qf7 Kf1 f2 Qh5 d1R+ Ke2 f1R Qh6 Be6 c8N Rf3 Qg6 Nc5 Ngf6 Nf5 Nd2 Kc3 Bd6 d4 Bc4 Kc2 b8N Rc3 Nfe4 f3+ Kf2 d3 Nc6 Be7 Bg3 Bd6 N6e7 Bb8 Ne2 Nd6 Re1 h1N+ Kf1 f2 Nc7 Ra5 Nf5 Rg7 Rb1 a1B Bh4 Ra2 Qh5 Bb2 Bd5 Rh7 Nc4 d2 N4b6 Rg7 Nba8 Rh7 Nf4 Rg7 Ke2 f1N Nf2 Nh2 N4d3 Nf3 Rf1 Ng5 Ra1 Ra5 Ra4 Rh7 Re4 Ra2 Ng4 Ng3+ Kf2 Re1 Bc4 d1B Bd2 Re3 Nc1 Red3 Ke1 Rd4 Bd5 Rda4 Rff4 Ra7 Nf2 Bg4 Nh6 Qg6 Rf8 Rd7 Nf5 Qf7 Bb3+
B1N2Kb1/Nr2B1BB/2bNqp1R/b1n1pn1q/6BB/1b1r2Q1/R3b2n/4k3 b - - 0 1 illegal: No possible last move, all moves rejected
1r6/KR3Bn1/bR3q2/2R1q2n/R5pN/rRb2rr1/3k1RBp/bQ2N1Bq b - - 0 1 illegal: No proof kernel
2nq4/bR2Br2/1BBR4/2Nb2q1/p5q1/b1B1N2k/1nRKbr1p/BQB2r2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kd7 g4 Ke6 b4 h5 f4 a5 g5 Kf5 d5 e5 d6 c5 d7 a4 g6 e3 b6 e2 b7 Kg4 g7 e4 b5 c3 f5 c4 b6 c2 f6 h3 f7 h4 Qd2 h2 Qb4 c3 Ba3 c1B Qb3 c2 Bg2 h3 Nd2 Bc5 f8B Ra7 Ra2 Na6 b8B Nb4 b7 Ne7 Nc4 Rh6 Bg3 Rf6 b8B Rf2 Nf3 Ba6 Nd4 Nc8 Bge5 Rb7 Qb1 Ba7 Rg1 h1B Be7 h2 Ne6 Bb2 Bf3+ Kh3 g8R Nd3+ Kd2 c1R Bbd6 Rcf1 Bdb4 Bb5 Bbc3 e3+ Kc2 Ba6 Bc6 Bd5 R1g7 Bb5 Nc5 e1Q+ Bd2 e2 Bdc3 Bc1 Ne3 Nb2 Rf7 Ba6 Rg6 Rc7 Rd6 Bac4 Bcd4 Qb4 Bc3 Bb5 Rg7 Qg4 Bed4 Rf6 Rf7 e1Q Rg7 Qeh4 Rh7 Qf8 d8B Be2 Rf7 Rd7 Bb6 Qhg5 Be5 Qd8 Bed4 Nc4 Ba1 R6f2 Bdc3 Bd2 Bc1 Nb2 Bd4 Bb4 Bc3 Ba3 Kd2 Nd3 Rc2 Nb2 Rf4 Rc7 Rb4 Rb7 Ba5 Rd7 Rb7 Rc7 Bb6 Rd7 Bf8 Rdf7 Be7
1RBRKb2/Bbq4p/4B1n1/1Bqnb1Qk/2r1q3/1Rp2n2/4B1NN/1Br4b b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 f5 Kf3 Kf7 e4 Kg6 g4 b5 a4 c5 d4 b3 d5 b4 d6 b2 e5 b3 d7 c3 e6 c4 e7 c2 e8B+ Kg7 a5 c3 g6 Ra6 g5 Rd6 a6 Rd2 a7 Nc6 a8B Nce7 Be2 Qc7 d8R Nf6 B8b5 Nfd5 Nh3 Bb7 Qg1 Rd1 Be3 c1B Nd2 b1Q Nf1 b2 Ba7 Re1 Nh2 Qe4+ Kf2 b1N Ra3 f3 Nf4 Nd2 Kg3 f2 Kh4 f1Q Rb3 Nf3+ Kh5 Rg8 Ng2 f4 Rb8 Ba6 Bb7 Qf2 Bc8 Qfc5 Qe3 Bd2 Rg1 Rc1 Rd1 Be1 Qg1 Bg3 Rd3 Ne3 Rd8 N3d5 Qe3 Rh8 Qg1 Bb7 Qe3 Kg8 g7 Kf7 g8B+ Kg7 Kg4 Kg6 Bge6 Rg8 Bbd3 Rg7 Bb1 Rf7 Bed7 Rf6 Bdb5 Rc6 Kh3 Kh5 g6 Ra6 g7 Ng6 g8B Ra4 Bge6 Rc4 Ng4 Nd2 Nh2+ f3 Ng4 f2 Nh2+ Nf3 Qd2 Bf4 Qe3 Kh6 Kg4 f1B Qg1 Qee3 Kf5 Kh5 Bed7 Be5 Ke6 Qe4 Kf7 Q5b6 Ke8 Qbc5 Ne1 Bh3 Be6 Bg2 Qe3 Bh1 Ng2 Qcd4 Qd2 Qdc5 Qg5+
NN2K1kN/q3p1QR/b1N1r1R1/B1nr4/1rq2q2/1p1nbB2/R1Nn4/3n3N b - - 0 1 illegal: No possible last move, all moves rejected
1N2qn2/pNBrb2k/2KB4/qr5r/4B3/1bNQR1B1/p2R3q/n2qBn1B b - - 0 1 illegal: No possible last move, all moves rejected
2Rb2n1/pb1B4/NBR1pN2/B3nn1B/2B2N1Q/4b2K/1B1r2r1/qrbkq3 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 f4 Kf7 Kf2 Kg6 Kg3 Kf5 b4 d5 c4 h5 c5 e3 g6 Ke4 c6 e2 c7 a3 g7 a2 b5 e6 b6 e1B+ Kh3 d3 g4 d2 b7 Ke3 g5 d4 f5 d3 g6 h4 f6 Qd7 f7 Nc6 b8B Be7 f8B Qd4 Bb2 Bf2 Qg4 d1Q Ne2 d2 Nf4 Bd8 Na3 Qe1 Rc1 d1N Nb5 Kd2 Bc5 a1B Bb6 Ne5 Rc6 Be3 Bc4 Bb7 c8B Rh5 Bd6 Rg5 Bd7 Qc3 Qh5 Rg2 Nc7 Kc2 Qg5 Bc1+ Qg3 Ne3 Bb4 Kd1 Na6 Nf5 B4a5 Be3 Rf1 Rc8 Rf2 Qa3 Rc2 Rd2 Bbc3 Bb2 Bcd4 Bc1 Bb2 Qa1 Qf2 Nf6 g8B Rb8 Bf7 Ng8 g7 Ra8 Kh2 h3 Rc3 Nfh6 Kg3 h2 Kh3 h1R+ Qh2 Rg1 Bh5+ Rg4 Qg3 Nf5 Qh4 Rb8 Bf7 Nge7 g8N Rgg2 Nf6 Ng8 Bh5+ Rg4 Rc8 Nfh6 Bc5 Bf3 Ba2 Ba8 Bba3 Rb1 Bcb6 Bb7 Bb2 Nf5 R3c7 Qe2 Bc4 Rg2 Bf7 Qf1 Rc6 Qe1 Bh5+
Q6n/1k1KBr1N/2RB1Rq1/1Np1rn2/3r4/1Nbnpb2/n3p1nN/N3NB2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 a5 f4 h5 d4 h3 g4 h2 b4 h4 f5 e6 g5 e3 b6+ Kc6 b5+ Kb7 f6 e2 g6 h3 d5 a4 f7 c3 g7 c2 d6 a3 d7 a2 Bg5 c1N Na3 Ra4 Nf3 Rhh4 Nc2 Na6 Be7 Nd3+ Kd6 e5 Nfe1 Nh6 g8N e4 Nf6 e3 Ng4 Bg7 f8N Rh5 Nh7 Qe8 d8B Bf6 Bc7 Re5 Rb1 Rc4 Na1 Nab4 Qa4 Qg6 Rg1 h1N Nh2 Be6 Rg5 Bc8 Rf5 Ng3 Rf3 Bh8+ Rf6 Bg4 Qa5 Ngf5+ Kd7 Bf3 Bcd6 Nf4 Rd1 Nf7 Rd4 Ng2 Re4 Rd5 Ree6 Re4 Qa3 Ree5 Qa4 Nd3 Qe4 Ka8 b7+ Ka7 b8N Kb7 Qa4 Rd4 b6 Bg7 Qa3 Nh8 Na6 Nc1 Nc7 Nd3 Ng4 h2 Nb5 h1R Nh2 Rg1 Nb3 a1N Qa4 Nc2 Na1 Ncb4 Qa2 Nc6 Qd5 Ka6 b7 Ncb4 b8N+ Kb6 Nc6 Na2 Na5 Rh1 Qc4 Ka6 N5b3 Kb7 Ng4 Rh4 Nh2 Rhf4 Qa4 Nfh4 Rf8 Rf7 Rc8 Nf5 Rf6 Bh6 Rc6 Bf4 Qa3 Bg3 Nec2 Be1 Qa5 Bd2 Ne1 Bc3 Qa8+
2rr2R1/1N4B1/b1nrk3/2pBr1n1/R2b2pq/KN2bN2/2pr1N1N/2NR2Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 f5 d4 c5 Kd2 g5 Kc3 a5 Kb2 c3+ Ka3 f3 h4 f2 h5 a4 d5 f4 d6 f3 b6 c2 e5 g3 e6+ Ke8 h6 g2 b5 g4 h7 Qf6 e7 Kd7 e8N Ke6 b7 Ne7 d7 Nd5 d8N+ Kf5 b6 Qe5 Nf6 Bd6 Bh6 Nc3 Ne4 Qe7 Bg7 Qh4 Bd3 f1R Nf2+ Ne4 Nc3 Re1 Nce2 Be5 Nc1 Nc6 b8N Bd4 Nd7 Ba6 b7 Rc8 b8N Rg8 Nb7 Rgd8 h8R Ke6 Rg8 Ng5 Ra2 Re5 Be4 Be3 Nf6 Rd2 Nh5 Rd6 Ng3 Bd4 Ng1e2 g1B Nb3 Be3 Nf1 Rcd8 Nh3 f2 Nh2 f1R Nec1 Rf2 Nd7 Rfd2 Qf1 Bgf2 Qg1 Bd4 Ra1 Bfe3 Nf2 Rc8 Qg3 Rd8 Rd1 Rc8 Ka2 a3 Qg1 Red5 Ne5 Rcd8 Nef3 Re5 N3a5 Rc8 Kb3 a2 Ka3 Rdd8 Rb1 Rd6 Rb4 Rcd8 Ra4 a1R+ Na2 Rb1 Nc1 Rb4 Nab3 Rb6 N7a5 Rbb8 Nb7 Rbc8 Bd5+
b2N2B1/2Rr2k1/2pB2B1/B2rpqp1/8/1NbbK3/nRN1QnB1/2nrr2B b - - 0 1 illegal: No proof kernel
1BN2r2/2bR3p/Rn4Bn/1bq2q1B/B1kr3B/1Q1q1q1q/1p5p/1BR1K1N1 b - - 0 1 illegal: No possible last move
1NK2Rn1/1NN1N1nR/N1Q1r2p/2B4B/N1b5/3kp1r1/nBq1rp2/bq1r4 b - - 0 1 illegal: No proof kernel
B1K3b1/2b3NN/1B2p1R1/QB1q4/1r6/2pn1Bnb/Nb1Br2p/qRr1kB2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Ke5 h5 a4 b5 f4 b3 d4+ Kb4 g4 c5 g6 h4 g7 c3 g5 e3 d5 c4 f5 b2 d6 c2 f6 h3 g6 h2 d7 e2 Ke6 e1B f7 Bc3 a5 Rh4 a6 Nc6 a7 Nf6 g8B Nh5 g7 Ne5 Ra2 Nd3 Nh3 Ng3 Bd2 c1R Nf4 Rb8 Nh5 Re4+ Kd5 Rb6 a8B Re2 Qe1 Kb3 Ra7 Kc2 Ra6 b4 Bh7 b3 g8B Bh8 Ng7 Rb4 Nc3 b1B Kc6 b2 Be4 Ba2 Bf3 b1Q Bh7 Bb3 Na2 Qa1 Bf5 Qa5 d8B Qd5+ Kc7 Bd7 B5e4 Bh3 Rg6 c3 Bc6 Bc4 Bb5 Bb3 Qf2 Kd1 Qb6 Bc4 Qa5 Bb3 Ne6 Be5+ Kc8 Bc7 Rg1 Bh6 f8N Bhf4 Nh7 Bfd6 Bh6 Ke1 Rh1 Rc4 Rg1 Ba3 Bf4 Rb4 Be3 Be5 Bdb6 Bc7 Bg5 Bb2 Bh6 Qd4 Ba8 Qd5 Bg5 Bg2 Ng7 Bh3+ Bg4 Qf3 Bf4 Bg8 Bh6 e6 Bd2+ Kd1 Rh1 Qd5 Bf3 Rc2 Bh6 Bf4 B1g2+ Kd2 Rb1 Rc1 Bg5 Ke1 Bf1 Bc7 Bd2+
nK2kbrN/ppr1p3/R4B2/NbRr1BN1/1N6/1N1B4/Q2qqb2/n3r2N b - - 0 1 illegal: No proof kernel
2Qk3K/3n1BB1/r1np4/BbR1p2B/1nN2N1R/2r2p1B/1qBN1p2/2b2r1b b - - 0 1 illegal: No possible last move
1B6/2rqBR2/qp2N3/1rn1Bb1p/3b2Q1/nppk2R1/3nNR1B/b1BB3K b - - 0 1 illegal: No proof kernel
Kb1rB1N1/RN1RQ1Bp/2r2nN1/5kN1/bNb2q2/pBNq1p2/4pn2/4r3 b - - 0 1 illegal: No proof kernel
6qq/1BRB1pNB/3Bq2B/3p1B2/kR5K/2bbn2R/2prNn1p/r1n1Q3 b - - 0 1 illegal: No proof kernel
3NNKBn/2pQ1br1/N3Nq1N/Rnrp4/2n1R2p/2p5/N2k1bR1/B2n3n b - - 0 1 illegal: No proof kernel
1N6/RBp1nNB1/1p5q/RR1b1nr1/1R1p3k/Bnr5/1QR1Rnp1/bK3b2 b - - 0 1 illegal: No proof kernel
r1nBbr1q/R6N/1b2Bp2/1p1BB2n/1pNp3N/3k1r2/BR1p3B/2r1Q2K b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kg2 Ke6 h4 Kf5 c4 Ke4 a4 b5 c5 d5 c6 g5 a5 d3 a6 g4 c7 g3 h6 d2 a7 Nf6 h7 Ba6 c8B Kd4 e4 Ne8 e5 Bg7 e6 Nf6 h5 Qf8 h6 Nc6 e7 Nd7 e8N Qd6 Rh2 Qe5 Kh1 Rg8 h8B Ne7 h7 Nf6 Qe1 Bb7 Na3 Bc6 Be6 Nc8 Nc4 Nh5 Nf6 Rf8 Nf3+ Kc3 Bd3 Be8 Bb1 Qd4 Ba2 Kd3 Rf2 Bh6 Nh4 g2+ Kh2 g1R Bb2 Qb6 Be5 Qb8 Bc7 Rg3 Bd8 Rf3 Kh1 Bg5 Bg7 Bh6 h8B d4 Rb1 Bg5 Nh7 Be7 Rb2 Bc5 Bh6 Bb6 Be5 f6 Re2 Re3 Bg5 f3 Bgf4 f2 Bh2 Rf3 Re4 Qc7 Rg4 Qg7 Rg6 Qh8 Rg7 Rb8 a8B f1R+ Kg2 Rh1 Bad5 Ra8 Ra7 Rhf1 Qf2 Rb1 Qe1 Rc1 Kh1
4R1r1/1p3BRr/1nBB3b/pB1N1Q2/2r1rnRK/2b1R3/pR3r1k/N7 b - - 0 1 legal: proof: b4 e5 f4 exf4 g4 c5 c4 cxb4 a3 d5 cxd5 bxa3 Qb3 f3 Qc2 Qf6 Qd1 Qd8 h3 f5 Ra2 g5 Ra1 f4 Bg2 Bf5 gxf5 g4 Bf1 g3 Bg2 Qg5 Bf1 Qg4 hxg4 Ke7 Rh2 Kd8 Rh1 Ke8 d4 Ke7 e4 Kf6 g5+ Kg7 g6 Kf6 d6 Kg5 g7 Kg4 d7 h5 d8R a5 d5 a2 e5 g2 Kf2 h4 d6 h3 e6 h2 d7 Na6 f6 Nc7 f7 Rc8 e7 Na8 e8B Bd6 f8R Rb8 Ba3 Ne7 g8B Rh3 Qd3 Be5 Nd2 Rh4 Ne2 Kh3 Nc3 Nb6 Bd6 Ng6 Nd5 Bc3 Rg1 h1R Qf5+ Kh2 Rb1 Rc8 Rb2 Rc4 Rf7 Rh8 Bh7 Rg8 Nb3 Re4 Bb5 Rc4 Re1 g1B+ Kf1+ f2 Re3 Re4 Na1 Rc4 Ke2 f1R Rg7 Re1+ Kf3+ Re2 Kg4 Rf2 Rg3 f3+ Kh5 Re2 Bf7 f2 Re3+ Nf4+ Kh4 f1R Rde8 Rff2 d8R Re1 Reg3 Ree4 R3g4 Rg2 Re5 Be3 Rde8 Rf2 Bhg6 Ne2 Bh5 Bh6 R5e6+ Nf4 Bc6 Red4 Re3 Re4 Be6 Rd1 Bed7 Rdd4 Bb5 Rc7 Bdc6 Rc4 R7g5 Rcg7 Bf7 Rh7 Rg7
8/pQbpR2B/N3bB2/2Bpq2n/B1pp1B1N/B3rr1Q/1K1k2Rq/8 b - - 0 1 legal: proof: h4 b5 d4 g5 hxg5 b4 e4 b3 e5 Bg7 d5 Bf8 e6 fxe6 axb3 exd5 b4 Nc6 b5 Nb8 c4 e6 b4 Be7 b6 Na6 b5 Nc5 b7 Bf8 Qd3 Na4 c5 e5 Qd4 Nb6 cxb6 exd4 Kd1 Kf7 Kc2 Ke6 b8Q Kf5 f4 Ke4 g4 h5 f5 c5 b7 h4 b6 h3 f6 h2 g6 Nh6 g5 Qc7 g7 Nf7 g8B Nd6 g6 Rh5 f7 Bg7 f8B Bh8 g7 Qc6 Nf3 Qa4+ Kb2 Re5 Nh4 Rh5 Bb5 Rh6 Bh7+ Nf5 g8Q Qc4 Re1+ Kd3 Nc3 h1Q Ne4 Be5 Qe6 Ng3 Ra2 Bc7 Qh3 Re6 Ba4 Qh2+ Re2 Qa6 Be7 Qa5 Bf6 Qe1 Bf4 Re8 Rg2 Qe3 Ra1 Re5 Re1 Rf5 Bd6 Rf3 Bf8 Nh5 B8e7 Bg3 Qc7 Bf4 b8B Ba6 Qb7 Bc7 Bd6 Bb5 Bde7 c4 Ba3 Qef4 Bc5 Qe5 Ree2 Bd8 Bbd6 Bc7 Ba3 Re8 Bdc5 Re6 Qc6 Re8 b7 Re7 b8B Re6 Bd1 Ba4 Qb7 Bc2 Re1 Bb1 Ba4 Bc2 Nf2+ Kd2 Nd3+ Qe2 Nb4 Bf5 Na6 Ree3 Bd6 Be6 Bdc5 Bd8 Bf4 Bb6 Rg7 Bc7 Reg1 Qe1 R1g6 Qeg3 Re7 Qg5 Rgg7 Qe5 Rg2+
BbQ5/R2N3q/K3NNbn/nQ5b/3B2b1/1bNb1q2/k2b1N1R/nN1q4 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 h3 h5 Bh6 b5 Bf4 g5 Bc1 f4 Kf2 Rh6 Ke1 Rf6 h4 Rf5 gxf5 g4 Ba3 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Bc5 Qd2 Be7 Qd1 Bf8 Kd2 Ke7 Kd3 Kd6 c4 Kc5 e4 d5 a4 g3 f6 h4 a5 g2 f7 f2 a6 h3 a7 f3 a8N b3 e5 Kb4 e6 b2 c5 h2 g6 Nh6 e7 Bg4 e8Q Bd6 f8N Nc6 g7 Na5 g8N Bb8 Qde2 Kb3 c6 b4 Na3 b1B+ Kd2 d3 c7 d4 Nh3 g1B Bg2 f1B c8N f2 Kd1 d2 Na7 Bg6 Rb1+ Ka2 N7b5 b3 Nf6 b2 Ne6 Qd5 Bf3 B6h5 Kc2 d1B+ Kd3 Bb3 Be3 Qb7 Nb6 Qh7+ Kd2 d3 Kc3 d2 Kb4 d1N Bd4 Ne3 Nbd7 Nc2+ Kc5 Na1 Kb6 Bf7 Qe5 Bd3 Qc8 f1Q Nf2 Bfh5 Ka6 Qd1 Ba8 Qf3 Rc1 b1B Rc7 Bdg6 Qd5 Bbd3 Ra7 Qd1 Nb1 Qf3 N2e4 Be3 Nf2 Bd2 Qdc4 Qd1 N5c3+ Kb2 Rf1 h1Q Qb5 Qd5 Rh1 Q5f3 Na4+ Ka2 Rh3 Bbf4 Rh2 Bb8 Nac3+
8/2N1BN1n/1bkn2qb/1R2nbRn/q5n1/1Rq2n1K/R1BNb3/1Q2N2N b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 h3 h5 Bh6 b5 Bf4 g5 Bc1 f4 Kf2 Rh6 Ke1 Rf6 h4 Rf5 gxf5 g4 Ba3 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Bc5 Qd2 Be7 Qd1 Bf8 Kf2 d5 e4 Kd7 c4 d3 a4 d4 g6 g3+ Ke1 b3 c5 h4 a5 f2+ Kd2 f3 e5 h3 g7 b2 f6 g2 e6+ Kc6 a6 b4 a7 h2 a8R b3 f7 Nf6 g8R Qc7 e7 Bf5 e8N Bh6+ Rg5 Nh7 f8N Nd7 R1a5 Ne5 Ne2 g1B Bh3 f1N+ Ke1 Ng3 Nd7 Nh5 Kf1 d2 Ng3 f2 Kg2 f1N Rb5 d3 Ra2 Qa5 Qc2 d1Q Nd2 b1N Nc7 Nc3 Ba3 b2 Qb1 Ne4 Bg4 Ne3+ Kh3 Qda4 Rb3 N3c4 Bb4 Nf3 Ne5+ Kb7 c6+ Kb6 Qa1 b1Q Be7+ Q5b4 Qb2 Ned6 Qc1 Qc2 Qb1 Be3 Rg1 h1N Rc1 Qc3 Rcc2 Kc5 Rcb2 Qb6 Rb5+ Kd4 R2b3 Nf2+ Kg2 Qba6 Bh3 Ng4 Nh1 Ng7 Kg3 Bg1 Bf1 Nh5+ Kh3 Bf2 Be2 Qb6 Bd1 Qba6 Ne4 d2 Nd3 Nce5 Bc2 d1B Nd2 Be2 Ne1 Qb6 Ne8 Be3 c7 Qbc6 c8N Qe4 Rb6 Kc5 R6b5+ Kc6 Nc7 Bb6 Ne8 Ndc4 Ncd6 Qed3 Nf7 Qd6 R5b4 Qg6 Nc7 Nd6 Rb5
Br1n1BN1/B6r/Kn1RNB2/n5qk/2Rb2Br/3Q2r1/2prN1N1/b6b b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 e4 g5 Ke2 f5 Kd3 Kf7 Kc4 Kg6 d4 c5 h4 g3 d6 b3 b6 b2 Kb5 g2 e5 f3 d5 f2 b7 f4 d7 c4 e6 g4 d6 c3 e7 c2 Ne2 g1R Nd2 b1N Nf3 g3 Ba3 g2 Ne1 f3 Qd3+ Kh5 Ra2 Nc6 b8B Rh6 Ba7 Nf6 B3c5 Rh8 Ra4 Bg7 Rc4 Bb7 Ba3 Qg8 d8B Nd2 d7 Rh7 Bd6 Bh8 e8B+ Qg6 Ba3 Nb3 Bf8 Nd5 Bf6 Nba5 d8N Rb8 Ne6 Nb6 Bd7 Nd8 Bc8 Bc6+ Ka6 Qg5 Bb7 Be4 Ba8 Bg7 Rh2 Rh1 Rh3 g1B Ng2 Rh2 Rg3 Rh3 Rg4 Rg3 Rd4 Bh8 Rd6 Bd5 Rc4 Be4 B6e7 Ba1 Bf6 Bc6 Ne1 Bd5 Bh3 f1R Ng2 f2 Bf5 Rd1 Bh3 f1R Bf5 Rg7 Bg4+ Kh6 h5 Rd2 Rd4 Be4 Ra4 Bgd4 Rc4 Kh7 h6 Kg6 h7 Rh1 h8N+ Kh6 Qe3 Rh4 Nf7+ Kg6 Qb3 Rgh7 Nh6 Bd5 Ng8 Bc6 Bf5+ Kh5 Qd3 Bf3 Ne3 Bh1 Ng2 Rf7 Bh3 Rh7 Bg4+
N3N2R/2BQKnn1/Nn1B3k/1q4RN/1Rq1N1b1/2n3p1/3R1r1q/b1r4n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 a5 e4 g5 Ke2 f5 Kd3 Kf7 Kc4 Kg7 d4 c5 b4 a4 h5 f4 b6 f3 b5 f2 h6+ Kh7 e5 f1Q+ Ne2 g1Q d6 a3 Kd5 g2 e6 g4 d7 g3 e7 a2 Ke6 c4 e8N c3 d5 c2 d6 Qh2 b7 g1N b6 Qc7 Bf4 c1N Nd2 Nd3 Ne4 Bg7 Rb1 a1N Rb4 Ra2 Qd2 Kg6 h7 Nh6 Ke7 Qc4 d8B Nb3 d7 Nbc5 Bd6 Nf7 B8c7 Ba1 d8R Bg4 Nf4+ Kh6 Qd1 Rg8 Nh5 Nbd7 b8N Ne6 b7 Nf2 Na6 Ng7 b8N Nb6 Nd7 Ne2 Qd3 Nc3 h8R+ Kg6 Qd4 Rc2 Qd5 Rf8 Qc6 Qfd3 Rd1 Qdd5 Rd2 Qdb5 Qb7 Nh1 Qd5 Na8 Nb6 Rc1 Rg8 Kh6 Qf5 Ne6 Rg5 Ng7 Rc8 Nd8 Qd7 Rf2 Nd5 Nb6 Rb8 Nba4 Nb6 Nf7 Na8 Nb6 N8f6 Na2 Rf8 Nc3 Ne8 Be6 Rg8 Bg4 Rh8+
kB2bn1b/nq2n2N/q2n1qB1/p2Q1B2/6B1/N1rB4/3R1KBQ/b2b2R1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 e5 d4 cxd4 f4 exf4 b5 Ra6 bxa6 b5 Ra3 bxa4 Ra2 Bd6 Ra1 Bf8 c4 f5 g4 d5 e4 Kd7 a7 Kc7 a8B h5 e5 d3 g6 d2+ Kf2 a3 e6 h4 e7 h3 e8B f3 c5 f4 c6 a2 g5 h2 g7 d4 g6 d3 Qa4 d1N+ Ke1 f2+ Kd2 f3 Qb3 Nd7 Nh3 Nc3 Ke3 d2 Be2 f1Q Ba3 d1B Rg1 h1Q Qc2 Kb8 Ng5 Rh3 Nh7 Qf6 c7+ Ka7 Bb7 Nb5 Bd6 Ne7 g8B Bg7 Bgc4 Bh8 g7 Nf8 g8Q Bd7 Bg6 Be8 c8B f2+ Bg3 Qa6 Na3 Qhc6 Rb1 a1B Rb2 Qd7 Bh1 Qdb7 Qd5 Ka8 Beg4 Na7 Bb5 Qf6 Bcf5 Qc4 Qe2 f1N+ Kf3 Qcc6 Rd2 Qca6 Kg2 Ne3+ Kf3 Rh6 Bb8 Nc4 Kg3 Rh5 Qh2 Nd6 Kf2 Rh3 Bg2 Rc3 Bd3
N2rR1N1/K3Nn2/3R2k1/nb1p1r2/nR6/nQ1n1NnR/3B2rq/2B3rN b - - 0 1 illegal: No possible last move
6Nr/3R4/1q5n/1R1N1nRq/1r1Br3/bb1pB3/1nqp1RRR/3k1QKQ b - - 0 1 illegal: No possible last move
K4bR1/BR1R2pR/2b2p2/k1qBn1nR/2Q5/3n4/R2qN2r/bN1r2nQ b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 h4 c5 d4 Kc7 e4 Kb6 d6 c4 d5 f6 h5 c3 d7 f3 Ke3 b3 Kd4 f2 e5 g3 h6 b2 e6 g2 e7 c2 e8Q Ra3 d6 Ra8 Kd5 Ra5 h7 Nc6 Ne2 g1N Rh5 Ne5 Qe6 Nd3 Bg2 f1N Ra2 Ng3 Bh1 Qc7 d8R Nh6 Rd7 Ne4 Qg4 Ra3 Be3+ Ka5 b6 c1B b7 Nf7 b8R Nfe5 Rb7 Ng5 Qc4 Bd2 Qe1 Bc3 Ba7 Qb6 Bf3 Qe3 Qeh4 Qd2 Qh1 Bd4 Rb4 Ba6 Rbb7 Bb5 Be4 Ba4 Bg2 Rc3 Bf3 Rc2 Be4 Rg8 h8R Rc1 R8h7 Rd1 Rf7 Bc3 d7 Rh8 d8R Bd4 Rfd7 Bc3 Na3 b1Q Bf3 Qb4 Nb1 Ba1 Be4 Bc5 Rg8 Qa3 Rf7 Be8 Rfd7 Bf8 Bf3 Ng6 Kc6 Nge5+ Kc7 Bf7 Kb8 Qc3 R5h6 Bd5 Ka8 Bc6 Bd5 Qe1 Rh2 Qd2 R7h3 Rh4 Rc2 Qc5 Rb2 Rg4 Rh7 Rg2 R2h5 Rh2 Ra2+
2Br1B1K/1NnR2B1/brp3R1/1bp3bB/R2nk3/1Q3rN1/r1b1q3/5R1R b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 f5 exf5 b6 c4 d6 c5 b5 axb5 axb4 Ra2 dxc5 Ra3 Ra5 Ra1 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 f4 h5 g4 h3 d4 h2 b6 b3 d5 h4 b7 b2 f6 h3 f5 c6 g5 Be6 g6 Ra6 g7 Rb6 f7 Bd7 f6 Be8 Kf5 e4 Kg6 Ke5 d6 e3 d7 e2 Nd2 e1R Nc4+ Ke4 Be2 b1B Bh6 Qe7 d8R Bd3 Nf3 Rf1 Ra4 Na6 b8R Nc7 Qb3 Bd7 Nh4 Bc8 Nf5 Ba6 Bh5 Rf3 Rd7 Qe5 Rbd8 Be7 f8R Qb2 f7 Bg5 Rb8 Qe2 Na5+ Bdc4 Nb7 Bb5 Rc1 h1B Rbc8 Bg2 Rh1 h2 Rcd8 Bh3 Rd6 Ba6 R8d7 Bb5 Rc8 Ba6 f8B Bb5 Rf1 h1R Rca8 Rh2 Rad8 Nf6 g8B Ng4 Kg7 Ne3 Rg6 Nc2 Be6 Nd4 Rh1 Bd3 Rf7 Ba6 Bc8 Bc2 Rdd7 Rg8+ Kh7 Bf1 Bhg7 Bb5 Be7 Rd8 Bef8 Ba6 Rff6 Qg2 Rff7 Bfb5 Kh8 Qe2 Ne7 Rc3 Rff1 Rf2 Nf5 Rff3 Qb1 Ra3 Qb3 Ra2 Ng3+
6B1/2r3Qq/bnbR1bpp/br1b1N2/k1B1r2R/3B2K1/B1q2N2/1N2NB2 b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 c5 bxc5 a5 g5 g6 Bd2 Na6 Bb4 axb4 h4 Nc7 h5 Ne6 h6 Ng7 hxg7 f6 Nd2 fxg5 Nb1 g4 c4 b5 f4 d5 Kf2 Kd7 e4 Kc6 a4 d3 e5 b3 e6 b2 a5 h6 f5 d4 a6 d2 e7 b4 e8N d3 a7 b3 f6 Qe7 f7 Ba6 Kg3 Rh7 Nh3 Nf6 g8B Nd5 Ng7 Re8 Nf2 Nb6 Nf5 Bg7 f8N Bf6 a8B+ Qb7 Rh2 Rc7 Nd7 Re4 Qc1 d1R Qc3 d2 Rh4 Rc1 Qe5 d1B Qe7 Bf3 Qg7 Rd1 Ra2 Rd5 Ra5 Bb5 Ra6 Bg2 Nf8 Rde5 Nh7 Bf3 Ng5 Bg2 Na3 b1Q Nf3 b2 Ne1 Qc2 Nb1 Bf3 Ra3 Ba6 Rd3 Re3 Rd5 Rb3 Rd7 Bd5+ Bd3 Rb5 Rd8 Rf7 Bf1 Re4 Rd6+ Kc7 c6 Qa7 Nd2 b1B c5 Bba2 Nb1 Qb7 Kg2 g3 Kh3 g2 Kg3 g1B Bc4 Kb8 c7+ Ka7 c8B Bc6 B8e6 Rc7 Bf1 Bb3 Bec4 Ba2 Bcd3 Bad5 Bc4 Qc8 Bb7 Qd7 Bc8 Qf7 Be6 Qd7 Nd1 Be3 Nf2 Bd2 Ba2 Ba5 Bd3 Bcb7 c6 Qe7 Qf8 Qh7 Qg7 Re7 c7 Bbc6 c8B Rc7 Bac4 Nd7 Rg4 Kb6 Nd4 Rb3 Bb5 Bc4 Bef7 Kc5 Rh4 Nb6 Bh3 Kb4 Nf5 Rb2 Bhf1 Be6 Bbc4 Ka4 Ba2 Rb5 Rh5 Bec8 Bfc4 Be6 Rh3 Bed5 Rh4
1N3R2/p5kr/2KRR3/1rpRQ3/5bq1/b1rbRrNr/BQqR2n1/2B5 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 h4 g5 g3 Nc6 Qb3 Nd4 Qd1 Ne6 Rh2 g4 Rh1 Ng5 hxg5 fxg3 b4 c5 e4 f5 Ke2 Kf7 Ke3 h5 d4 c3 d5 g2 g6+ Kg7 b6 c2 b7 g3 b8R h4 d6 h3 b5 h2 b6 Rh5 b7 Rh6 e5 f4+ Ke4 f3 Kd5 f2 d7 Rh4 e6 Rh7 e7 Nf6+ Kc6 Rh5 e8R Rh4 Re3 Rh3 Qe1 Nd5 Ra2 Nf4 Na3 Bd6 Bc4 f1R Ne2 g1Q Nb5 g2 Nbd4 Rff3 Ng3 Qf6 d8R Bf5 Qb4 Bd3 Qb2 Qf5 Rbc8 Qg4 b8Q Qf2 Rd1 h1R Rd2 g1B Ra6 Ng2 Ba2 Bf4 Rd5 Rh7 Rf8 R1h3 Qd6 Rb8 Re6 Rb5 Qe5+ Kh6 Red6 Qe2 Ra3 Bge3 Rff6 Kg7 Rfe6+ Kg8 g7 Kf7 Rd1 Bd2 g8R Bb4 Rb3 Ba3 Rd2 Qe4 Rgg6 Qe2 Rgf6+ Kg7 Rc3 Bf5 Re3 Bd3 Kd7 Qf2 Nc6 Qe2 Nb8 Qd1 Qb1 Qe2 Kc6 Qf2 Bb2 c1R Qa1 Rc3 Bc1 Qe2 Qb1 Qd1 Qb2 Qc2 Rf8+
3r4/1kR5/2R1Q1Rb/1NrbBrNp/2q3B1/bq1p4/1RBn2B1/K4bqB b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 Kd2 d5 e4 Kd7 b4 Kc7 c4 h5 Kc2 a5 Kb2 f5 g6 g2 e5 a4 b6+ Kb7 e6 f4 g7 g3 c5 f3 b5 f2 e7 Nf6 g8B Ne4 e8B Kb8 c6 d3 b7 d2 c7+ Ka7 b8R d4 Bd5 d3 b6+ Ka6 b7 Bh6 Qg4 d1Q Bf4 Rf8 Nf3 g1B Nc3 g2 Be5 Qh4 Rc1 Be6 c8B a3+ Kb1 Ka7 Ba4 a2+ Kb2 a1R Rh3 Qg5 Rg3 Qf4 Qh3 Nd2 Rg6 Rf7 Ng5 Qfg4 Bab3 Ra5 Bd7 Rb5 Ka1 Rf6 Bf3 Bd5 Rf8 Rc8 b8R Rf4 Rff6 Rd8 Ba4 Ra5 Rb2 Rb5 Ra6+ Kb7 Ra8 Rf7 Rc8 Qb4 Be4 Qg4 Bd1 Qb3 Rcc2 Qh4 Qf5 Qg4 Qf6 Qf4 B7g4 Rff8 Qe6 Rf5 Nb1 Ra5+ Na3 Rb5 Bef3 Qfb4 R2c5 Q4c4 Bc2 Ra5 R5c6 Rb5 B1e2 f1B Be4 Bf2 B2f3 g1Q Bh1 Bc5 Bef3 Bb4 Bfg2 Rc5 Nb5 Ba3 R8c7+
1q2q2r/nN6/QqB1ppBk/1rR2Bb1/3B4/1bR1BQ2/N4K1b/1rr3B1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 f4 Nc6 e3 dxe3 f5 e6 f6 Nce7 Be2 Bh6 Bc4 Kf8 fxe7+ Kg7 Bd3 Kf6 Bf1 Bf8 e8B Kg7 b4 d5 g4 a5 c4 h5 b6 a4 c5 d4 b7 d3 b8B e2 g5 f6 c6 a3 b5 a2 c7 d2+ Kf2 e1R g6 h3 b6 h4 b7 h2 Nf3 h3 Bg2 Ra5 Ba7 Kh6 b8B Rb5 g7 Bd7 c8Q Ne7 g8B Nc6 Bh7 Qb6+ Nd4 Bc5 Rf1 h1R Be5 h2 Bf5 Rg1 Bh5 h1Q Nc3 Qh2 Qf3 Bf8 Rb1 a1B Qa6 Bb2 Bhg6 Bd6 Na2 Bc7 Bb8 Na7 Ra1 Bc3 Rb1 Qf4 Rb3 d1Q Be3 Bd2 Rc3 Qa4 Nc6 Reb1 Na5 Bc6 Re1 Bd5 Nb7 Bb3 Rec1 Rh1 R1c2 Rhc1 B5d4 Bd6 Rc5 Be5 R2c3 Bd6 Ke2 Bc7 Bg1 Qe5+ Kf2 Bg5 Bh1 Qf4 Be3 Qfb4 Bg2 Bh2 Be5 Qf4 B5d4 Qb8 Qd1 Qb4 Bc6 Qe8 Nd8 Qb8 Nb7 Qa5 Qg4 Qb6 Qf3
RKBr4/3bR3/5Q2/R1r3Nn/Rpq1RB2/2k1r3/bp2QNb1/2rbqR2 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Na3 f2+ Kd2 axb6 Nb1 b5 Bh3 b4 Bg2 Nf6 Bf1 Ng8 Ba3 g5 Bb2 f4 Bc1 f3 Qe1 Nc6 Qd1 Bd6 h3 Bf4+ gxf4 Ne5 h4 g4 Nh3 Nf7 Ng1 Ng5 hxg5 Qb6 Rh6 Qc7 Rh1 Qd8 Kd3 Ke7 Ke4 Kd6 c4 Kc5 Ke5 h5 e4 d5 a4 b5 g6 g3 f5 g2 a5 b3 f6 Kb4 a6 d3 c5 h4 f7 d2 f8Q h3 a7 h2 g7 b2 Ra5 d4 Qf6 d3 c6 Rb8 a8R Rh3 c7 Qe8+ Kd6 Bd7 e5 Rd8 Qe2 d1B c8R d2 Kc7 Bb3 e6 d1B e7 Ba2 Nc3 Rg3 Nh3 g1R Bg2 f1R Ng5 f2 Kb8 Re3 Bh3 Qf7 e8R Qc4 Re5 Rg4 Rg1 h1B Nce4 Bg2 Re7 Rf4 Bg4 Rf5 R8a7 Re1 Rf1 Rc5 Ra4+ Kb3 R7a5 b4 Bd2 Rg3 Bf4 Re3 Qf8 Nf6 g8R Nh5 Qf6 Re5 Rge8 Rc5 Rg1 f1Q Nf2 Bc2 Re4 Rc1 R8e7 Qe1 Rf1 Bd1 Kb7 Bb5 Rca8 Be8 Bc8 Bd7 Qb6 Kc3 Kb8 Bf3 Qh6 Bg2 Qf6+
2bBRqk1/p1B1qq2/b2N2Nn/1pB2NnN/4R3/BQ6/1K3nq1/1B2n1r1 b - - 0 1 legal: proof: e4 h5 c4 c5 a4 e6 g4 hxg4 d4 cxd4 c5 Na6 a5 Rb8 b4 f5 c6 Bc5 bxc5 fxe4 Ra2 b5 Ra1 Rb6 axb6 Rh4 Qe2 Rh7 Qd1 Rh8 Kd2 Kf7 Kc2 g5 f4 d5 h4 g3 h5 g2 c7 e5 b7 e3 b8B g4 f5 d3+ Kb2 e2 h6 e1N f6 d2 c6 g3 h7 d4 Nc3 e4 Ra4 e3 Nh3 g1Q Nd5 g2 Ndf4 e2 Nh5 d3 N3f4 Qf8 Ng6 Qf2 Re4 Nc5 Qb3+ Ne6 Rg1 Ba6 c8N d1B c7 d2 Nce7 Qf5 c8N Nh6 Bc7 Rg8 h8B Qf3 Rh1 g1Q Nf5 Qgg2 Rh3 Rg7 Ncd6+ Kg8 Rg3 Qff2 Rge3 Qf7 Bd8 Ng5 Bc7 Bc2 Bd8 Bd3 Bc7 Bc4 Re8+ Qf8 R3e4 Be6 f7+ Kh7 Rb4 Bec8 Rbe4 Rg8 Bf6 d1N+ Ka2 Qf4 Bfd8 Nf2 Ka3 Qg7 f8B Qf7 Kb2 Rg7 Nc4 Kg8 Bc5+ Qf8 Nd4 Qf7 Nf5 Nef3 Ncd6 e1Q Bd3 Qe2+ Ka1 Ne1 B1a3 Qe3 Bb1 Qe2 Rh4 Qe7 Re4 Qg4 Ba2 Ne6 Ngh4 Qh3 Kb2 Rg1 Bb1 Ng5 Ng6 Qf3 Rh4 Qg2 Re4
1B3R1N/5b1q/3b1p2/1Bn1B2B/bRqpQ3/3BRq1b/1b1R3N/rk1bK3 b - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 d4 axb4 g5 c5 g6 cxd4 Bb2 f6 Ba3 Ra5 Bc1 Ra8 h4 b5 Ba3 Nc6 Nc3 Ne5 Rc1 Nf7 gxf7+ Ke7 Ra1 g5 Bc1 g4 Nb1 Ra3 Bh3 Rc3 Bg2 Rc5 Bf1 Rg5 hxg5 Qa5 Kd2 Qb6 Ke1 Qd8 a4 Kd6 c4 Ke5 e4 h5 g6 d5 a5 b3 a6 b4 a7 b2 a8R b3 g7 g3 c5 h4 c6 d3 c7 Kd4 e5 f3 e6 h3 e7 f2+ Kd2 g2 e8B h2 Qe2 Be6 c8R Nh6 g8B Ng4 Bc6 Bd6 f8B Qc7 Nc3 b1Q R8a6 b2 Re8 Ne5 R6a2 Nd7 Bb5 Qc4 Bf7 Nc5 Bh5 Bf7 Ne4 Rh7 Kd1 d2 Ng5 Kc3 N1f3 g1B Qe4 d4 Bd3 f1B Bh6 Be3 Rf8 Bh3 Re1 h1Q Nh2 Qc2+ Ke2 b1B Rb2 Ba2 Rb4 Bb3 Ra2 Ba4 Rab2 Bef4 Kf2 Q2b3 Re3 d1B Ra2 Qf3+ Ke1 Qb1 Rd2 Be8 Rdb2 Ra7 Nf7 Ra5 Nh8 Bf7 Ree2 Bg5 Bf4 Ra7 Bg3 Bc1 Be5 Ra5 Rbd2 Bb2 Bhf4 Ra8 Re3 Qc2 Rf2 Ra7 Bf1+ Q2d3 Be2 Kc2 Bf1+ Kb1 Rc2 Be7 Bb8 Bd6 Be5 Ra8 Qd5 Qh7 Qe4 Bb3 Be2 Ra1 Bd3 Ba4 Rd2+
3r1BNR/1qNb3p/2bN1b1r/7Q/1N1q2Rr/K2b2p1/3qk2r/RRR4B b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Be3 g5 Bf4 Ne7 Bc1 f4 h3 Nf5 gxf5 Nc6 h4 g4 Bd2 Ne5 Be3 Nf7 Bc1 Ng5 hxg5 Kf7 Bg2 Ke7 Bf1 Ke8 Kd2 Kf7 a4 b5 e4 d5 c4 d3 e5 d4 a5 g3 a6 f2 c5 f3 c6 b3 a7 b2 c7 b4 f6 Ke6 g6 Kd5 g7 Kc4 g8R b3 f7 Bg7 f8N Bd7 e6 Bf6 Nc3 b1B e7 b2 Bg2 f1B e8N f2 c8R+ Qc7 Bf3 Bg2 Nd5 f1R Nb4 Rf2+ Ne2 Qc6 Nc7 Qb7 Bc6 Bd5 Rg6 Rh2 Rg4 Bc2 Rg1 b1R Ng6 Rd8 Ba3 Rh6 Re1 Rb2 Kc1 Bb1 Nc3 Rbh2 Ne7 d2+ Kb2 Bd3 Qe2 d1Q Ng8 R2h4 N3b5 Qd2+ Nc2 Rb8 a8R Rh2 Bf8 Be4 R8a3 Ra8 Rac1 Ra4 Raa1 Bg2 Be4 Bh1 Bg6 Bhc6 Be4 Ra8 Rf4 Qd1 Rf2 Re8 Bc5 Ra4 Qh5 Be2 Rcb1 Rb4+ Ka3 d3 Rf4 d2 Bh1+ Kd3 Ne7 Bf1 Rh4 Qg4 Rec1 d1Q Rd8 Qd2 Bd6 Rc4 Nb4+ Ke3 Ra8 Bd3 Rb8 Rf8 Rd8 Ke2 Re8 Rf7 Rh8 Rf8 Ng8 Rd8 Bf8 Re4 Qg5 Qgf4 Nd6 Qfe3 Qa5 Qd4 Qc5 Re5 Rf4 Reh5 Rg4 R5h4 Qh5
2BN3B/1bN1r1nB/4bb1k/2nQ3q/2R1B1p1/4p2p/R1rQ2nr/2BK2B1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 exf5 g6 h4 Qc7 h5 Qd8 g4 gxh5 g5 Bg7 Qf3 Bf8 Qg4 hxg4 b4 Kf7 c4 Kg7 f4 a5 f6+ Kg6 f5+ Kf7 c5 h5 c6 e5 c7 d5 b6 h4 b7 e4 b5 h3 b6 a4 Nc3 a3 Nge2 a2 Nb5 d3 Bg2 d4 Kd1 d2 Nf4 Ra7 Ne6 Nd7 b8Q Bb7 c8B Qe8 Qa8 Bg7 Nbc7 Nh6 g6+ Kg8 Nd8 Nc5 Rh2 e3 Rb1 a1N Rb4 Nc2 Rc4 Ne1 Be4 Ng2 f7+ Kf8 Kc2 Bf6 Kd1 Kg7 f8B+ Kg8 g7 Kh7 Be7 Qh5 g8B+ Kg7 Bh7 Ra2 Ke2 Rc2 Kd1 Re8 Bd6 Re7 Be5 Nf7 Qa5 Ng5 Qc3 Nge6 Qb2 Ba8 b7 Kh6 b8B Ng7 Qb3 Bb7 Qa2 Bg5 f6 Bh4 f7 Bg5 Qa5 Bf6 Ke2 d1R+ Qd2 Rf1 f8Q Rf2+ Kd1 d3 Qf7 Re2 Qa5 d2 Qd5 Ne1 Rg2 Rf2 Bh2 Re2 Bg1 Rf2 Rg3 Rh2 Ba7 Ng2 Rf3 Na6 Bd4 Nc5 Rf2 Nh4 Ke2 d1B+ Ke1 Be2 Qd2 Bd3 Kd1 Ng2 Bf3 Bf5 Be4 Be6 Bc3 Nf5 Ba1 Bg5 Bh8 Ng7 Qd7 Bf6 Q2d5 Rc3 Ra2 Rc2 Qd2 Qg5 Q7d3 Qh5 Qd5
3B4/nN1NpQ1B/bKpb1R2/B2B4/qb6/4pq1k/1N3rn1/B1Rrr2N b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 g4 fxe4 f4 h5 Qe2 g5 Qg2 gxf4 g5 Bh3 Qg3 Bc8 Qg4 hxg4 Kf2 Kf7 h4 Kg6 b4 Kf5 d4 a5 d6 f3 Ke3 g3 b6 Kg4 d5 c6 Kd4 a4 Kc5 f2 h5 a3 d7 e3 g6 a2 h6 g2 b5 Ra5 h7 Bg7 d6 Nf6 b7 Rf8 h8B Rg8 Ne2 g1R Bg2 f1Q Nd2 Qd1 Nc4 Ra3 b6 Qb3 Nb2 Qf7 Bd5 Nh5 Bd2 Rd3 Rc1 a1B Ba5 Qf3 Ng3 Be5 g7 Re1 Rf1 Nf4 Nh1 Rf8 g8B Rdd1 Bh7 Kh3 Rf2 Qe8 d8N Ng2 d7 Qeh5 Rf1 Qe4 Rf6 Qhf3 Nf7 Qa4 d8B Bc3 Nd6 Bb4+ Kc4 Na6 b8N Re8 b7 Nc7 Nd7 Rf8 b8Q Nb5 Nb7 Na7 Qf4 Rf7 Nd3 Be5 Nb2 Bbc3+ Kc5 Bd6+ Kb6 Bcb4 Nbc5 Ba6 Nb7 Rg7 Qf5+ Rg4 Qg6 Rgd4 Qg8 R4d2 Qf7 Rf2 Nd3 Rb2 Rf5 Rbd2 Ba1 Rb2 Rf6 Rf2 Nb2
bbN1b1K1/3q2p1/2Q3r1/5bn1/4NB1R/2NNNBpN/2p2RQ1/n1b1r2k b - - 0 1 illegal: No possible last move
1b2RN2/4N3/Bn1R2N1/pR2nkr1/Q1B1pqNn/1N6/1nR1K2p/1q3r1r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 g4 Qc7 f5 Bb7 Bd2 Bd5 Bf4 gxf4 h3 Qd8 g5 Bf7 Nd2 Bh5 Nb1 Bg4 hxg4 Bg7 Rh2 Bh6 Rh1 Bf8 b4 Kf7 c4 d5 b6 e5 b5 a5 b7 h5 c5 f3 c6 h4 c7 d3 c8N h3 f6 Ke6 g6 d4 g7 e3 g5 e4 b6 e2 g6 Kf5 f7 Nf6 g8B Qd6 g7 Nfd7 Rh2 Ne5 Nd2 Nbd7 Nb3 d2+ Kf2 e1N b8R d3 b7 Ng2 Ne2 Rh4 Nf4 Nb6 Ng6 Be7 Qc2 d1Q f8N d2 Bgc4 Qb1 g8N Qc7 Ra4 Bd6 Nf6 Rh7 Ba6 Nh4 Ng4 d1N+ Ke1 f2+ Ke2 Rh5 Rd4 Nb2 Qc4 Qf7 Qa4 Rg5 Rg2 Bc7 Rd6 Ra7 Ra8 h2 b8R Rb7 Kd2 Qf6 Bfc4 f1R Ke3 Rh1 Rc2 Ra7 Rb7 Bb8 Ke2 Qf7 Re7 Rc7 Re8 Rc5 Ra7 Rd5 Rc7 Rdd1 Rc5 Rdf1 Rb5 Qc7 Bd5 Qc3 Bf7 Qg3 Bc4 Qf4 Nce7+
qr6/2Bpr1kR/3B1pnR/4N1q1/2BQ3Q/B4Br1/n2bKp1B/N2n2r1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 h4 gxh4 b4 e5 c4 exf4 c5 b5 cxb6 Bh6 a5 Qg5 b5 Bb7 a6 Bf8 axb7 Qd8 g4 h5 e4 a5 g5 h3 g6 a4 g7 a3 e5 h2 e6 d3 e7 a2 Nd2 h4 Bb2 f3 Ba3 h3 Be2 Rh7 Nb3 Na6 b8B Nb4 Bd6 Rb8 b7 d2+ Kf1 f2 b6 f6 Bf3 Kf7 Ke2 Qc7 Rc1 Qc5 Na1 Qg5 Rc8 Kg6 Qa4 d1N e8Q+ Kh6 Qa7 Ne7 g8B Ng6 Bc4 Kg7 Qe4 Be7 Qh4 Bd8 Nc2 a1Q Qa4 Bc7 Rh8 Na2 Qb4 Bd8 Qd2 Be7 Qdd4 Bf8 Bc7 Bb4 Bd6 Bd2 Bc7 Qc3 Na1 Qca5 Bcd6 Qa8 Bc7 Rc8 b8B Rf8 b7 Rg8 Bg2 Rf8 Nf3 Rd8 Rf1 h1R Ne5 h2 Bf3 Rg1 Bcd6 h1R Bbc7 Rh3 b8B Rg2 Rh1 Rhg3 Qhf4 Rg8 Rh6 Rg1 Qh4 Rf8 Nf7 Rh3 Bh2 Rhg3 Ne5 Rg8 Bcd6 Rd8 Bbc7 Rb8 Re8 Rh8 Rd8 Re8 Rc8 Re6 Rch8 Re7 R8h7+
1N3bB1/1B3n2/K1Q1p1pn/2qN1RB1/3ppBb1/2r4r/1BRRR1k1/2q4n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 f4 Ke6 b4 Kf5 c4 d5 h4 a5 h5 g6 b6 a4 b5 a3 c5 g3 c6 d3 Kc3 g2 Kb4 a2 c7 d2 b7 Ra5 h6 Be6 c8B Bd7 b6 Nf6 h7 Ng4 Nf3 g1N Nc3 Ra3 Bc4 Rg8 h8B Nh3 Re1 Nf6 Qa4 Kg4 Ka5 Kg3 f5 d1Q Nd4 Be8 Nc6 Qe2 Bg5 Kh2 Rad1 a1Q Rd2 Ng4 f6 Qd6 f7 Nd7 b8B Nh6 b7 Qc1 Ka6 Nf2 Bc7 Kg3 b8R Kg2 Rbb2 Ne5 Rbc2 Nh1 Bb7 Qc5 Nb8 Bd7 Bhf6 Rb3 Qc6 Rh8 Bg7 Bg4 Bd6 Nd7 Bdf4 Ne5 B7f6 Ng8 Bg7 Rh3 Bh8 Nh6 Bhf6 Bg7 f8R Nef7 B6e5 Nd8 Rf5 Ndf7 Nb5 Rbd3 Nc7 Bf8 Bb2 d4 Bb3 Rhf3 Be6 Rh3 Nd5 Rc3+ Qb5 Ne5 Bg8 e6 Qc4 Nef7 Qb5 Rc4 Qc6 Rcc3+ Rexe2+
k4Q2/B1Rq2Q1/q1p1QbN1/4Br2/n1pN2K1/2pp2b1/1Q3bRQ/5nQr b - - 0 1 illegal: No proof kernel
BRn4K/nQ5n/1ppp3R/2N3q1/pN2qk2/N1r1R3/n5bR/1N1B1rR1 b - - 0 1 illegal: No proof kernel
R1bRN2k/b2q1p2/1R2R3/p1qp4/3n1nN1/r2N2p1/3R2b1/B2bBNKQ b - - 0 1 legal: proof: d4 b5 a4 a5 axb5 e5 f4 exf4 h4 c5 g4 cxd4 g5 Nf6 h5 Ra7 Bh3 Ng8 Bf5 Ra6 Bd3 Rh6 Bg6 hxg6 gxh6 Bc5 Rh2 Ba3 Rh1 Bf8 Kf1 d5 c4 g5 e4 g4 b4 g5 b6 d3 h7 f3 h6 g3 c5 d2 b5 g4 e5 f2 c6 Ba3 b7 Kf8 e6 Ne7 b6 Bb4 c7 Bd6 Rh2 Rg8 h8B Bc5 h7 Ng6 e7+ Ke8 Ne2 Qd7 Nf4 Qd6 Nd3 Be6 c8R+ Kd7 e8N Ke7 Rd8 Nc6 b8R Kf8 b7 Qd7 Ra8 Rg7 b8R Ba7 Rb6 Nf4 Qf3 d1B Qh1 Nd4 Bd2 Rg5 Be1 Re5 Nd2 Re3 Bf6 Bf5 h8N Kg8 Ng6 Rf3 Nb4 Ra3 Ne5 Be6 Nbd3 Bf5 Bh4 Kh8 Rab1 Qd6 Rc1 Bc8 Rcc6 Qd7 Be7+ Nh5 Kg2 f1B+ Kg1 Bg2 Bh4 Nf4 Nf1 Bgf3 Re2 g2 Re6 Be4 Bc3 Bf3 Ba1 Be4 Kf2 Bf3 Rd2 g1Q+ Ke1 Bg2 Bg3+ Qh2 Kf2 Qh6 Bh4 Qf8 Kg1 Qc5 Bg3+ Bh3 Be1 g3 Nh2 Bf1 Neg4 Bg2 Nf1+
1N3r2/b2pBp2/q3p3/RnBn1Q2/2pq2NR/1p1B2KN/2bB4/kBq2N2 b - - 0 1 illegal: No proof kernel
1Qq1b3/p1Rp1b2/3N1R1B/1pp1p1p1/1R1Br3/R1RKB2r/2rb2B1/Nk6 b - - 0 1 illegal: No proof kernel
1Knr2r1/5b2/BN1R3n/2R1Br2/1N2b1r1/1RRq3r/R3N2Q/nNrkb2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 d5 b4 f5 e4+ d3 c3 h5 g5 a5 g6 f3 g7 f2 b6 h3 b7 f4 b5 a4 b6 h2 Ra3 f3 Rb3 d4 Bd2 a3 Be3 a2 Rb5 a1N Qd2 h4 Bh6 h3 Rc5+ Kb3 c4 Be6 Ne2 Bf7 Bf4 Nh6 g8R Be7 Rgg1 Bh4 Rg6 Nd7+ Kd6 Bg3 Rg1 h1R b8N h2 b7 Nb6+ Kc6 Ra4 e5 Nc8 e6 Rg8 Be5 Bh4 Qf4 Kc2 e7 d2 e8R d1R R1g3 d3 Rd6 d2 Na6 Rc1 b8R d1R Kb7 Rd3 Nb4+ Kd1 Ree6 Rd2 Ra6 Qd3 Red6 Ra3 Ra4 Rg1 Rh3 h1R Qh2 R1g4 Kc7 Rac3 Ra2 Rb3 Rbb5 Bg3 Kb8 Rbc3 Bg2 f1B Rbb6 f2 Bb7 Bg2 Ba6 f1R Rbc6 Bf2 Rc7 Qf5 R7c6 Ra3 Rb3 Qd3 Rb5 Be4 c5 Nb6+ Rd8 Qc3 Rbb2 Bh5 Rc7 Be8 c6 Bf7 Rcc8 Bh4 c7 Be1 Ra5 Qd4 Rdd5 Rh3 Rb3 Qc3 Rd3 Qc4 Rad5 Rff3 Rdc3 Rf5 Rcd8 Rd4 c8N Qd3 Rdc5 Rd7 Re8 Rd6 Re6 Rdd8 Rd6 Nd5 Ka7 Ne7 Nb6 Nc8+ Kb8
B4Bn1/r1R1Nb1r/1B1Kn1bR/4Q3/5rRq/kBR2rb1/4rN1n/bbB5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 h5 c4 a5 g4 f5 b3 d5 b6 h3 g5 f3 b7 a4 c5 h4 c6 f2 c7 d3 g6 f4 g7 a3 Ne2 d2 Bb2 h2 Nc1 f3 Bb5 f1N Ra2 d4 Bc4 d3 Qe2 d1R Nc3 Bf5 c8R f2 Rc7 Na6 b8B d2 Ba7 h3 Bb6 Qh4 Kd5 Rh6 e5 Rf6 e6 Bg6 e7 Rf4 e8B Nc5 Qe5 Bd6 Bc6 Ra7 Ba8 Re1 Ra1 d1B Ra2 Nh6 g8R Re2 Rgg7 Bb1 Rg4 Ng8 Ra1 a2 Kc6 Be7 Bf7 Bg5 Kd6 Bdc2 Be6 Bg6 Nd5+ Kb5 b4 Ka4 Bf7 Ne6 Ne7 Rf3 b5+ Bf4 Nd3 Kb3 Rc8 Bg3 Bc1 Rf4 Rc7 Ka4 Rg1 h1B Rc3 Bg2 Rh1 Nh2 Rc7 f1R Nf2 Bd5 Rc3 Bbe4 Rb1 a1B Rbb3 Bb2 Rc7 Bb1 Rd3 Ba1 Rdc3 Nf8 Be6 Bda2 Bed5 Ne6 Bb3+ Kb4 Bd4 Rf3 b6 Rf4 b7 Rf3 Bg5 Ka3 b8B Rf4 Ne4 R1f3 Bb6 Nf1 Nf2 h2 Rg1 h1R Bh6 Qg5 Bf8 Rh7 Rh1 Qf6 Rh6 Qh4 Be3 Nh2 Bd2 Raa4 Ba7 Ra6+ Bb6 Ra7 Qb5 Bf7 Qh5 Bbg6 Qe5 Bab1 Bc1+
b1nBQ3/Q3Qbn1/q4Qrq/Rbq4R/3Q4/1B3N1q/K1kqr2r/3Nb1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 Kc2 h5 Kb3 f5 g5 a5 e3 d5 g6 h3 c5 d3 b6 f3 c6 f4 b5 d2 c7 h4 b7 a4+ Kb2 d4 b6 a3+ Kb3 h2 g7 a2 Na3 h3 Rb1 a1Q Be2 f2 Bf1 f3 Bg2 Kd3 e4 f1B e5 f2 e6 Qe7 Qh5 d1R Bf4 Nc6 b8Q Nh6 g8Q Na7 b7 Nf5 Qgg6 Re1 Bc6 Re2 Qgg4 Qc5 e7 Ng7 e8Q Be6+ Nc4 Bf7 c8Q Qa6 Qcc7 Nc8 Qhh4 Be7 Qh6 Bh4 Bg5 Bg2 Bb5 f1B Bd8 Be1 Qf6 Rh6 Rc1 Rg6 Qa7 Bc6 b8Q Bfg2 Ba4 Bb5 Qab7 Ra7 Qbb6 Ba8 Nf3 Rb7 Rg1 h1Q Ra1 h2 Qce7 Qg2 Q6a7 h1Q Qbd6 Qh6 Rh1 Qgh3 Qg1 Rb6 Ra3 Rgg2 Qd5 Rh2 Ne3 Re6 Nd1 Rd6 Nh4 Kd2+ Kb2 d3 Ka2 Kc1+ Bc2 d2 Bb3 Rb6 Nf3 Rc6 Nb2 d1Q Qdd4 Qdd2 Ra5 Rce6 Bd5 Kc2 Nd1 Qh7 Qff4 Rg6 Qff6 Q3h6 Bc4 Rhf2 Rh5 Rh2 Re5 Qh3 Rh5 Qhh6 Bb3+
2r1rq1n/4Q1b1/1q2n2R/BB3B1r/4b1RN/KnbN4/B3r3/1NnN1Brk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb3 a5 g5 d3 g6 d2 g7 a4+ Ka2 d4 b6 f3 b5 Kf4 c5 Kg3 c6 h3 c7 d3 e5 f2 b7 h2 b6 a3 e6 h4 e7 f4 e8B h3 Bg2 f1Q Bec6 f3 Bd5 f2 Kb3 a2 Bde4 Ne7 g8B Na6 b8N Ng6 b7 Bg7 Bb2 Nc5+ Kb4 Bf5 c8B Ne6 Bc6 Be4 Bf6 Qb6+ Bb5 Rh5 Qe2 d1R Nc3 d2 Bd4 Nh8 Nd7 Rc1 b8N d1R Nf8 Rd2 Nb1 Rc3 Bd7 Rc8 Bc3 Re8 Na6 Rac8 Qe1 Re2 Bd2 Bc3+ Ka3 Bg7 Ng6 Bc3 Bf3 Bg7 Bg4 Kg2 Ba5 Bc3 Nc5 Bg7 Nd2 Bc3 Rc1 a1B Nb1 Bg7 Qb4 Bac3 Rc2 Qd1 Bdc6 f1N Bf5 Qdd8 Nd3 Nd2 Qe7 Nb3 Bc4 Bgd4 B6b5 Bg7 Qf7 Qf6 Qe7 Qf8 Rc1 Rc2 Ne2 Rb2 Rhe1 h1R Rg1+ Kh2 Rg3 Rg1 Nh4 Kh1 Rg4 h2 Rf1 Rc2 Rff4 Rd2 Rg6 Rb2 Rfg4 Rc2 Rh6 Rd2 Nd4 Re2 Nc2 Na1 Qc5 Nd8 Nf4 Rd2 Bgd5 Ne6 Bf1 Re2 Ba2 Nb3 Ba6 Rg3 Nd4 Kg1 Bb5 h1N Qe7 Nf2 Nc2 Kh1 Ne3 Rg1 Nd1 Nd3 Bd7 Ndc1 Nd3 Nec5 Bc6 Ne6 Bb5
r1b4b/8/2br2b1/BB2r1b1/B1BN1rr1/NK1R1Nqn/2n1kbQB/3R3N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kf6 c4 Ke5 Kc2 g5 h4 a5 b4 d5 b6 f5 b7 f3 b5 f4 h5 f2 c5 d3+ Kc3 g3 h6 g2 c6 d2 b6 d4+ Kc2 a4 h7 g4 c7 f3 Rh4 Kf4 e5 Ke3 e6 a3 e7 g3 e8B a2 Rh6 d3+ Kb2 Ne7 Rh1 Bh6 Ne2 g1B Bg2 f1B Rh3 f2 Bh1 Nbc6 b8B Bg5 b7 Nd5 Qa4 Qd6 Qc2 Bg2 Na3 f1R Bf7 Rf4 Kb3 Re8 h8N Re5 Ng6 Bf2 Nh4 Ncb4 Nf3 Qg6 Bb2 d1B Bc3 d2 Be8 Qg8 Ba4 Qg7 Rb1 a1B Rc1 Na2 Ba5 Nab4 Nh2 Be4 Nf3 g2 Ng3 g1R Bg2 Bg6 Bf1 Bc3 Nh1 Rgg4 Bfb5 Be2 Qa2 Nc2 Rd1 Bed3 Rg3 Ke2 Qb2 Be8 Qa2 Bc6 Rh3 Bf5 c8B Bcd4 Be6 Qc7 Rb1 d1R Qb2 Rd2 Rd1 Qg7 Bg8 Bc8 Bd6 Qc7 b8N Bc3 Nc4 Bg6 Na3+ Rc4 Rg3 Nf4 Qa2 Nh3 Be6 B6d7 Nc6 Rd3 Bg8 Rcf4 Bgc4 Qb8 Nd8 Bc6 Ne6 Ke3 Bdc7 Rd6 Ned4 Rc5 Ne2 Bh8 Ned4 Re5 Rg2 Bg3 Rgd2 Bf2 Rd3+ Ke4 Bcb6 Be3 Qb1 Rff6 Bc5 Ree6 Re1 Rd5 Rf1 Qg3 Ne2 Red6 Rg1 Rdf5 Qf1 Re5 Qg2 Rff4 Rgd1 Bg1 Rd4+ Ke3 Ba7 Bf2 B7b6 Be1 R4d3+ Ke4 Bg1 Bf2 R3d2 Ke3 Bh2 Bh5 Ned4 Bhe8 Ne6 Bg6 Rd3+ Ke2 Ned4+
n1rkrn2/RRrBB3/b4qRK/R1N5/1QN3bR/bR1qQr2/8/q3b2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 a5 c4 h5 g4 a4 g5 a3 g6 h3 b6 f3 c5 d3 Ke3 h4 Kf4 h2 c6 f2 e5 d2 g7 a2 e6 h3 b5 d4 e7 d3 Kg5 f4 b7 f3 c7 Nf6 g8R Bg4 c8Q Nbd7 b8R Nb6 Ba3 Nfd7 Qa4 d1R Rb7 d2 Qc1 Rc8 Nc3 Na8 b6 Rh7 Rg6 Re1 Qe4 d1Q Qb4 Qd3 Qe3 Rf7 Bg2 f1B Na4 f2 Bc6 Bfe2 Bb5 f1R Nc5 R1f3 Bc6 Rg7 Kh6 Bf1 Ra7 Be2 Rb1 a1B b7 Bc3 b8R Qb6 Ba4 Qf6 Rb3 Bf1 Rb5 Re2 Rbb7 Be1 Qg5 Re4 Qe3 Re6 Ne2 Re5 Ng3 Be2 Nf1 Re6 Rg1 h1Q Nd2 h2 Nc4 Re4 Rg3 Qf1 Rh3 h1N Rh4 Qg1 Qc1 Qgd4 Qf4 Qa1 Qe3 Rf2 Na6 Bf1 Qbd2 Qe2 Na5 Qed1 Qdc3 Bb5 Nc4 Rf3 Bb4 Qd3 Bc5 Kf7 e8R Re5 Rd8 Re8 Bb4 Be7 Ba3 Nf8 Rd5 Bc6 Ra5 Bb5 Nb8 Ba6 Nd7 Bd6 Bb4 Bb8 Be7 Bd6 Bb5 Ba3 Qb4 Rb8 Nc5 Rbc8 Ne4 Ke6 Bd6 Rgc7 Nc5+ Kf7 Be5 Ke7 Bd7 Kd8 Bg3 Qe2 Bd6 Qd3 Be7+
6nr/N3qqnb/q1Rb4/Rq3kb1/3N1b1B/1QK2bR1/BB4R1/B3rR1b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 h4 Kf6 e4 a5 c4 g5 b4 d5 h5 a4 b6 g3 e5+ Kf5 h6 g2 c5 a3 b7 f3 c6 f2 h7 d3 e6 a2 e7 g4 e8R d4 b5 g3 b6 Qe7 c7 Nd7 b8B Ndf6 b7 Nh5 Rh4 Ng7 Nh3 g1B Qe1 g2 Na3 Bh2 Be2 g1B Qd1 f1Q Re4 Bf4+ Re3 f6 Rb1 a1Q Nb5 Qa6 Bb2 Be6 c8R Bd5 Ba7 Bh1 b8R Bg5 Nf2 Bh2 Qb3 Bhf4 Nh3 Qf3 Bd1 Qh5 Rc6 Qhf7 Rbb6 Rc8 Ng1 Rd8 Kc1 d2+ Kc2 d3+ Kc3 Rd5 Rec8 Re5 Rg3 Re1 Bc2 d1Q Ra8 Qde2 Nf3 Qf1 Bd1 d2 Bb8 Qfe2 Na7 Qeb5 Be2 d1B Bc4 Be2 Bc7 Bd3 Bd8 Be4 Ng1 Bef3 Ne2 Qc7 Rbb8 B8d6 Rb7 Qce7 Nd4+ Ke4 Ba1 f5 Rb2 Be3 Rbg2 f4 Nc2 Kf5 Rd7 Bdc5 Rd1 Bd6 Bd5 Bh5 Rb1 f3 Rc1 f2 Nd4+ Ke5 Bc4 f1B Rd1 Bd3 Bb2 Re2 Rf1 Bf3 Be6 Bef4 Bd5 Nh6 Ba1 Re1 Bb2 Rf8 h8B Ng8 Be6 Bh7 Bc4 Qee6 Ba1 Ke4 Bf6 Qee7 Be6 Bh6 Bh4 Bhg5 Nc8 Rd1 Qb2 Nf5 Ba2 Nf6 Kc2 Qab7 Qb3 Re1 Ra5 Q7a6 Ne2 Re8 Bg7 Rh8 Na7 Ng8 Bgb2 Ng7 Kc3 Kf5 Nd4+
1k1b2nR/1NRQ2qB/1q3qbr/2R3Q1/2rq2n1/b2nR3/1n1B1N1R/2R1b2K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 Kg2 a5 e4 g5 b4 d5 h4 Kd7 c4 Kc7 c5 a4 c6 a3 e5 g3 e6 g4 e7 d3 e8Q d4 h5 a2 h6 d2 h7 d3 Ne2 f3+ Kg1 g2 Nf4 f2+ Kh2 g1B+ Kg2 g3 Qde1 d1Q Rh6 d2 Q1e6 Nd7 b6+ Kb8 b7 Qb6 b5 Nc5 Kh1 Ra4 Rh2 Rc4 Qh5 Nd3 Nh3 f4 Na3 f3 Qg5 Bd6 Rb1 a1B Qd7 Bf6 Be2 f1N Nf2 Ne3 c7+ Ka7 b8R Ng4 Bf1 Bd8 Rb7+ Ka8 Ra1 Qa4 Rb1 d1N Bd2 N1b2 Rc1 Qb4 Bh3 Qc3 Bf1 Qg7 Bg2 Qbd4 b6 B6e7 Nb5 Ba3 Nd1 f2 Nd6 f1Q Be4 Qff6 Nf2 Be7 Qc6 Bf5 Qd7 Bg6 Bf5 Qgf8 Be4 Qb8 c8R Bd8 Rc5 Qa7 Rbc7+ Kb8 b7 Qb6 Nd1 Bf2 Bf5 Be1 Nf2 N8h6 Be4 Re8 h8R Re6 Re8 Ng8 Bf5 Re7 Be4 Rh7 Bf5 Rh6 Re3 Bf7 Bh7 Bh5 Rh3 Bg6 Rh2 g2+ Kg1 Be4 Nb5 Nge5 R7c6 Be7 Nd6 Ka7 Qe6 Bf5 b8R Be4 Re8 Bd8 Nb7 Ne7 Qgf5 Kb8 Rh8 Ng8 Qh5 Bf5 Rc7 Be4 Rh1 Bf5 Kh2 Be4 Qd7 g1Q+ Kh3 Qg4+ Kh2 Qgg7 Qh4 Ng4+ Kg1 Qgg5 Rh2 Qgg7 Qg5 Bg6 Kh1
7K/R1R5/R1bb3n/1qnn1rqB/2R4b/1bk1BR1q/1NnN2B1/qrB3Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 a2 Be2 f2 Bf1 h2 Qd2 h3 Qe1 f3 Bg2 f1Q Qf2 d2 Ne2 d1N Nf4 d3 Qg1 d2 Nd3 Nh6 g8R f2 Rg6 Na6 b8B Nc5 b7 Ra5 Ra6 Be6 Ba7 Ne3 b8R d1N Rb7 Nd5 Rc7 N1e3 Nb2+ Kb3 c4 Nc2 Nd2+ Kc3 Bb6 Qe2 Ba7 f1Q Bb6 Be7 Raa7 Bh4 Ra6 Nb7 c5 Qb5 c6 Rf8 Be3 Nc5 Qf2 Qfd3 Rf1 h1Q Qg1 h2 Raa7 Ra6 Rf3 Rb6 Ra6 Nf6 Raa7 Bb3 Ra6 Nd5 Raa7 Nf7+ Kf5 Qe7 Kg6 Qg5+ Kh7 Nh6 Ra6 Qd4 e5 Rf5 e6 Qdg4 e7 Qh3 e8B Rb8 Rb1 a1B Kh8 Rb7 Bh5 Rb6 Qf2 Qg1 Rca7 h1B c7 Qe1 c8R Qef1 Nd3 Bb2 Rcc7 Ba3 Qg1 Bb4 Ba3 Qc1 Rb2 Qa1 Ra2 Rb7 Nb2 Qd7 Rf1 Nf4 Bd5 Bc4 Nd3 Nb3 Be4 Bd6 Bc1 Nc5 R2a5 Rb1 Nb2 Bb3 Ra4 Qb5 Bb7 Bc6 Ba8 Bd7 Bg2 Nd5 Rf3 Bc6 Rc4+
R1rn2RK/Rb1kN3/4R1Rb/1q6/N5br/6r1/BQn2r1B/n1qN1nNb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Bg4 b7 Rh4 c7 Nh6 g8N Nf7 c8R Na6 b8R Kd7 e8R Qg5 b6 Bh6 b7 Nd8 Bf4 Qe5 Bg2 f1R Nc3 f2 Qd2 Qh5 Qb2 Nb4+ Kd2 d3 Ke3 d4+ Ke4 d2 Nd1 d3 Re6 Ra3 Ra8 Nc2 Ne7 Qb5 Rcc6 Rb3 Rg6 Rc3 Rce6 Rc8 b8N+ Ke8 Ne3 d1Q Nd7 d2 Nc5 Qc1 Ke5 d1R Kf6 Rd3 Na4 Kd7 Nd1 Ra3 Bd5 Rg3 Rb1 a1N Ba2 Re1 Rg8 f1N Kg6 Re5 Kh7 Re2 Kh8 Reg2 Nf3 Rd2 Rg1 h1B Rg2 h2 Ng1 Rf2 Be5 Rgh3 Rg3 Bg2 Ra3 h1B Bh2 Be4 Reg6 Bb7 Re3 Rg3 Ree6 Qf4 Rc1 Nce3 Rcc6 Nec2 Rca6 Qc1 R6a7
3N1Qrr/4b3/r1n1bQR1/1kB5/1qqR2n1/NqRRq2b/1p3q2/3RRB1K b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 a4 c5 g4 h5 Kg2 f5 d4 b5 e4 b3 g5 b2 a5 f3+ Kh2 f2 g6 f4 a6 c4 g7 b4 e5 h3 a7 c3 d6 Kc6 e6 h4 e7 b3 e8R c2 d7 f3 Re4 Qg5 d8Q Be7 Bc4 f1Q Re1 f2 Ra3 Nh6 g8R Qe3 Ne2 Be6 Rg6 Rg8 d5+ Kc5 d6 Nc6 Rhg1 Ng4+ Kh1 h2 d7 Qfh3 Rg3 f1B Nd4 Qf2 Rd3 Qhe3 Qf3 Bh3 Bd2 c1Q Qf6 Qc3 Bb5 Qb4 Qdf8 Qc4 d8R Qb4 Nc3 b1Q Rd7 Qc1 Nb1 b2 Rac3+ Kb6 Rd1 Qc2 Na3 Qcb3 Nf5 Ka5 Nh6 Q4c4 R3d4 Qcb4 Bf1 Q3c4 Nb1 Kb5 Nf7 Qfe1 Ra3 Q1f2 R4d6 Qec3 Re1 Qc2 Nd8 Qff5 Be3 Qfd3 Bc5 Qe3 Rc3 Qcb3 Be2 Bf1 Rdd3 Rb8 a8R Rb6 Ra1 Ra6 Bf3 Be2 Kg2 h1R R7d4 h3+ Kg3 h2 Nd2 Bf1 Rad1 Bg2 Nb1 Rf1 Bb6 h1Q Ba7 Qhg1 Bc5 Qd2 Be2 Qge3+ Qf3 Rh1 Bf1 Rhh8 Na3+ Ka4 Rdc1 Bh3 Rcd1 Nf2 Kh2 Ng4+ Kh1 Qdf2 Q3f6 Ka5 Nc2 Kb5 Na3+
2B4N/BQn1N1qq/1b1N3b/R2pb1N1/2N1b1K1/1kr4R/Nb1q1r2/2Q1rn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 Kb4 b3 a5 b6 f5 e5 d5 c5 g5 c6 g3+ Kf3 g4+ Kg2 d3 c7 a4 b7 a3 e6 d2 h5 a2 h6 Ne7 h7 Qd7 Nc3 Ra3 Rh3 f3+ Kh1 f2 Kg2 f4 Nge2 f3+ Kh1 g2+ Kh2 g1B+ Kg3 Bh6 Nf4 Rf8 h8N Na6 b8N Bh2+ Kh4 g3 Be2 f1Q Kg4 Nf5 e7 f2 e8N g2 Ne6 g1B Ng5 Qg7 Nd6 Be5 Nd7 Ng3 Qe1 d1Q Be3 Qd2 Qc1 Qfd1 Ba7 f1R Bf3 Rf5 Nb6 Q1c2 Nbc4 Bb6 Bg2 Bd7 c8N Nc7 Ne7 Re1 Be4 Rf2+ Bf5 Bb5 Be6 Qch7 Bc8 Kc5 b4+ Kd4 Qc2 Nf1 Qc1 Be8 b5 Bg6 Nb2 Be4 Nbc4 Bc5 b6 Rb3 b7 Bb6 Rb1 a1B b8Q Bb2 Na2 Rc3 Ra1 Kc5 Qa8 Kd4 Qb7 Kc5 Ndf7 Kb5 Nfd6+ Ka4 Nb4+ Kb3 Ra5 Rf6 Na2 Rf7 Re3 Rf2 Rh3
5nB1/K1Rrp1nr/NQqB4/Nb3kqr/B2bB2r/5r2/3Q1Bb1/R2n2B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 h5 c5 a4 c6 h3 f5 a3 c7 h4 b6 a2 b7 e3+ Kd3 h2 g5+ Ke5 b5 e2 b6 e1R g6 h3 g7 Be6 c8B Qd6 f6 Bf7 Be6 Ra4 Be3 Be8 f7 Nd7 b8Q Rh7 b7 Ngf6 g8B Nh5 Nc3 Bg7 Nge2 Nf8 Ne4 Bc6 Rc1 a1Q Bg1 Bb5+ Rc4 Qb2 Nc1 Qg2 Qd2 Qg5 Nb3 Ra3 Qa7 Qc6 Nc5 Re4 Qb6 Rh4 Na6 Bh8 Bd7 Ng7 b8B+ Kf6 Be8 Kf5 Bg2 R7h5 Bf2 Rh7 Rf1 h1B Bd6 h2 Ra1 R4h5 Bf3 Bg2 Bg1 h1R Bd7+ Nfe6 f8B R1h4 Bf2 Ne8 Bh6 Ng7 Be8 Nf8 Bg1 Ra4 Na5 Ra3+ Kc2 d3+ Kb2 d4 Bfd5 Ra4 Kb3 Ra3+ Kb4 Rc3 Qe1 d2 Bf2 d1N Qd2 Qf6 Bhe3 d3 Bg1 Qg5 Bef2 Qb7 Kc5 Ra3 Qa2 d2 Bec6 Rf3 Rcc1 Be2 Ba4 Qd7 Rc3 Qe6 Kc6 Bb5+ Kb7 Qc8+ Ka7 Qc6 Ra3 Nge6 Rb3 Bd4 Rc3 Ng7 Rc2 Nc3 Qb2 d1R Rcc1 Rdd3 Qd2 Nd1 Rc4 Qd7+ Rc7 Qc6 Bf4 Rde3 Bfh2 Re6 Bf4 Rd6 Bfh2 Rd8 Bd6 Rd7 Be4+
R4R2/1r1BB1pn/2b1Nr2/4B1B1/N1kn1nK1/n1RnR1n1/2Qn2Br/1q4b1 b - - 0 1 illegal: No possible last move, all moves rejected
1rRN1r2/2b5/BB4R1/2KQqbN1/3n2nr/3bb3/k2RpbB1/Br1B1R1r b - - 0 1 illegal: No possible last move
R1br1nr1/B5Q1/RqrbN3/N1k1pn1R/r5R1/1rb2b1K/6QR/2nBR3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 Ke7 g4 Kd6 Kg2 e3 g5 a4 g6 e2 b6 e1R f5 d3 f6 d2 g7 a3 f7 a2 b7 Ne7 g8R Ra4 b5 Kc5 b6 d5 Nh3 d4 Qg4 d1N Nd2 d3 Rh2 Nf5 Ng5 Nd7 b8R Re3 b7 Nf2 Be2 Qb6 Bd1 Bd6 Ra8 Nf8 b8R Rf3 Rb1 a1B Ra6 Bc3 Rba8 Re3 Rg6 Rg8 Qg3 Nh1 Qg4 Nhg3 Kh3 Ne2+ Qg3 Rf3 Bb2 Nc1 Ne6+ Kc6 Nb3 d2 c5 Re3 Bc2 d1R Na5+ Kb5 c6 Red3 Nd8 Kc5 c7 Re3 Rg4 Rdd3 Bd1 Rdd4 Kg2 h3+ Kf2 h4 Qg2 Red3 Ra1 Rdb4 Kf1 Rb3 Ne6+ Kb5 Ba3 Rdd4 Bc5 Rdc4 Bd4 Rc6 Ra2 Kb4 Re2 Kb5 Re1 Kb4 Rh1 h2 Kf2 h3 Kf3 Nh7 f8Q Kb5 Qg7 Nf8 Rh4 Kb4 Kg4 Kb5 Rhg1 h1B Rh5 h2 Kh3 Kb4 Qc2 Bd5 Rg4 h1R+ Qh2 Rf1 Qg2 Rf4 Bg1 Rd4 Bf2 Bf3 Bg1 Bd7 c8R Kb5 Re8 Bc8 Bf2 Bc7 Re7 Rd8 Rd7 Bb8 Rd2 Bd6 Bc5 Qc7 Ba7 Qb6 Rde2 Qc7 Qh1 Qb7 Rh2 Qb6 Nf4 Kb4 Qg2 Kc5 Ne6+
1B3rk1/1r1bpnR1/4Q1rr/4rB1R/n1q1N3/2n1KB1B/3n1Q2/Bb2b1BN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 b4 h5 f4 a5 g4 d5 c4 e3 g5 h3 c5 d3+ Kf3 h4 b6 d4 b5 d2 c6 h2 f5 d3 c7 a4 b7 a3 f6 a2 b6 e2 Ke4 e1R+ Kf3 h3 Na3 Rh6 Bb2 Bg7 Nb5 Re5 Ne2 Rg6 Ng3 Nh6 Nd6+ Kg8 Qe1 d1R Nde4 d2 Ke3 Na6 b8B Qd5 b7 Bd7 c8B Qc4 Ba7 Rb1 b8B Nc5 Qe2 Na4 f7+ Kh8 Bbd4 Rb7 f8Q+ Kh7 Rd1 a1N Qff2 Nb3 Ba1 Kg8 Qg4 Bf6 Qe6+ Nf7 Be2 Bh8 Bf3 Bg7 Rc1 Bh8 Rc3 Bg7 Rd3 Bh6 Rd5 d1N+ Kf4 Ndc3 Ke3 Bg7 Bd4 Nd2 Ra5 Rf6 g6 Bh8 g7 Rg6 Rc1 h1R Rc2 Rhb1 Nh1 h2 Bda7 R1b6 Rb5 Kh7 g8B+ Kg7 Bh7 Rh6 Bf5 Kg8 Ng3 h1B Rcb2 Bg2 Nh1 Bf1 Rb1 Bd3 Rg1+ Rg6 Rg5 Bc2 Rh5 Bb1 Rh7 Bf6 Rc5 Bh4 Bh3 Rh5 Rg5 Rb5 Bd4 Rh6 Rh5 Rf5 Bde5 Ra5 Bh2 Rae5 Bg1 Bg3 Qh2 Be1 Qf2 Be8 Qb6 Rff6 Bcf5 Bd7 Qb3 Nd6 Qb6 Rf8 Qa6 Nf7 Qf6 Rc8 Qe6 Rf8 Rg7+
2Rr1B1K/pb5R/1b1B3b/5q2/2BNq1RN/1Q1b2bk/n1B2r1R/1bn1B2q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Ke6 e4 d5 h4 g5 b4 f5 h5 d3 c5 d4 c6 d2 e5 g3+ Kf3 g2 c7 g4+ Ke2 g3 Kd3 f3 b6 f4 Ke4 d3 b5 f2 b7 f3 b6 Qe7 h6 Nd7 b8R Nc5+ Kd4 Kf5 h7 Kg4 b7 Nf6 e6 Nd5 Ke5 Nb4 Ra4 Nb3 Ne2 g1B Ba3 g2 Qc2 d1B Nd2 Qe8 Kf6 Bh2 e7 g1B Qa2 Rg8 h8B Bg3 Rh7 Bc2 Qb2 Qc6+ Kf7 Bh6 Bc3 Re8 Qb1 Qd5+ Kg6 Rf8 e8B Rf4 Qd1 Na2 Bf8 Kh4 Re4 Bb1 Ba4 Nbc1 Ba5 Bd7 Rbe8 Bc8 b8B Bb7 R8e5 B3h2 Rg5 Qd4 Rg2 Kh3 Bb3 Bg3 Bc4 Qd5 Qb3 Rf5 Rg4 Qe4 Nd4 Rf7+ Nf5 Rf6+ Kh5 Rf7 Nh4 Rf6 Be2 f1B Bd1 f2 Ndf3 d2 Bc2 d1Q Bd2 Rf5+ Kg6 Bd3 Bdb4 f1Q Bd2 Bhe3 Kg7 Bh6+ Kh8 Bb6 Nd4 Qff4 Ba5 Qh1 Be1 Qg5 c8R Rf6 Rc5 Rf2 Bbd6 Rd8 Rc8 Qgf5 Rh2+
kQ3nr1/b2N3b/Bq1R2B1/1RN2q2/3b1NBp/3r1b1B/1r1rbnNB/2K5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 Kc7 g4 Kb7 c4 f5 e5 a5 g5 h5 b6 h3 e6 h4 g6 d3 e7 h2 e8B f3 b5 f4 c5 d4 g7 f2 Qh5 a4 Nf3 a3 Qf7+ Nd7 Bb2 a2 Nc3 Rb8 c6+ Ka8 c7 Bc5 Rb1 a1B Ne2 Nf8 Kc1 Nh6 g8B Bf5 c8B Bh7 Ba6 Ng4 Bh3 f1Q+ Ne1 f3 Qc7 f2 Be6 Rg8 Bg6 Qd6 Rg1 h1B Nf4 Bf3 Bd7 Qe6 Rg2 Qg1 Rh2 f1R Rd2 Qf5 Be6 Rf2 b7+ Ka7 Rd1 Rd2 Neg2 Qe3 Bc8 Nf2 Ba3 Bb6 Bd6 Bc5 Rb3 Qee6 Be5 Qb6 Bd6 Rb2 Be6 Rd8 b8N+ Ka8 Nd7 Qb8 b6 Qg4 Rb5 Rc2+ Kb1 d2 Nf6 d3 N4d5 Qh5 Beg4 Qf5 Ne4 Bh8 Rc1 d1B Bh2 d2 Ndf4 Bde2 Rd1 Be3 Rc1 Ra2 Rc6 Rd3 Rd6 Bb2 Kc2 Bc5 Kb1 d1R+ Kc2 R1d2+ Kb1 Be5 Kc1 Rab2 b7+ Ka7 Qc8 Qc7 b8N Ka8 Nd7+ Qb8 Qd8 Bed4 Qc7 Ba7 Nec5 Qb6 Qb8+
bb1r1QK1/N5Rr/3qN2q/1Q1k4/2rn1Q1p/RqnQ3q/B2Q1r2/1n2Q1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 a5 Kf5 h5 e4 h3 g4 a4 b4 f3 c4 a3 b6 a2 b7 d3 b5 h2 b6 f2 g5 d2 g6 Nc6 g7 Nf6 g8Q Nd5 Qh7 Nc3 Na3 Nb1 b8Q+ Qc7 Kf6 Nd4 Nh3 Bb7 Qe1 d1Q Nf4 Qb3 Rg1 h1Q Ne6 h4 Be2 Qhh3 Qd8 f1Q+ Bf4+ Kc6 e5 d5 c5 Bd6 Qd3 Rh7 Rg7 Rb8 Qdd2 Ba8 b7 Qhe3 Bf3 Qh3 Bh2 Qd7 Qf8 Rd8 Bg1 Bb8 Nb5 Qd6 Be4 Qh6+ Bg6 Ne2 Qd3 d4 Na7+ Kd5 c6 Nec3 c7 Ne2 Qdd2 d3 c8Q Nd4 Qc7 Qc4 Qd7 Qb3 Qc2 d2 Qd3 d1N Qed2 Bc7 b8Q Ndc3 Qb4 Bb8 Qf4 Nd1 Qbd2 Ndc3 Qde8 Qc6 Ke7 f5 Kf7 Qd7+ Kg8 Qd6 Qg5 f4 Bf7 f3 Qgf4 f2 Qa4 Qb7 Qad1 f1R Q1e1 Rf3 Nc7+ Kc5 e6 Qb3 e7 Rf2 Ne6+ Kd5 e8Q Na3 Rc1 a1R Qa4 Ra2 Ra1 Nab1 Qae8 Rb2 Ra3 Rc2 Qeb5+ Qc5 Qef1 Qb4 Bh5 Ne4 Bd1 Rc4 Ba4 Nec3 Bb3 Qa4 Ba2 Qb3 Qbe8 Qe7 Qfe1 Qd6 Qb5+
4NkNb/3n1q2/rn1R2p1/4q1B1/q1n2n2/BNQb1KB1/1NqrrB2/1BR5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 h4 a5 e4 f5 b4 f3 c4 d3 e5 f4 b6 g6 b5 d4 b7 a4 h5 d2 c5 a3 e6 d3 b6 a2 e7 Qd7 h6 Ra6 h7 Bg7 c6 Nf6 c7 Qa4 Rh6 Nbd7 b8B Nd5 b7 N5b6 Qb3 d1R Qc3 d2 Ba3 Bf6 Nh3 g3+ Kg1 g2 Kf2 g1N Rh5 Qc2 Bd3 Ne2 Rd5 Kf7 Rd4 Re8 Ba7 Bh8 b8B Bb7 Bf5 Be4 c8N Bd3 Bc7 Rh1 Rd5 d1Q Nd2 Qa4 Bcb8 Qdc2 Rd6 Rd1 Nb3 Rd2 Rc1 a1Q Be4 Rg8 e8N Kf8 Ne7 Rg7 Qb4 Qe5 Ng8 Re7 Qc3 Re6 Bc7 Re7 Bd8 Re6 Bg5 Re7 Kf1 f2 Kg2 f1N Kf3 Ne3 Nf2 Nec4 Nd1 Re6 Nb2 Re7 Kg4 f3 Bf5 f2 Kf3 Nf4 Be4 Na8 Bb6 f1Q+ Bf2 Qea5 Bf5 Ree2 Be4 Nab6 Bf5 Be5 h8B Qc5 Bhf6 Qd4 Bd8 Bh8 Bh4 Qe5 Bg3 Qh3 Be4 Qhe6 Bg5 Qf7 Rf1 Qc1 Bb7 Bf5 Be4 Qb1 Bc2 Bd3 Rh1 Qc1 Bb1 Qc2 Rc1
2Bq2rn/RrN1b1B1/B3p2q/rq1k2n1/2R5/3rqN2/2RRn2R/Qb1K2B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Ke6 g4 a5 f4 h5 c5 d5 b6 h3 c6 e3 b7 a4 b5 h4 g5 e2 g6 h2 b6 a3 g7 a2 c7 h3 Bd2 d3 Na3 d4 f5+ Kd5 f6 Nd7 b8R Nc5 b7 Rh7 f7 Ne6 Qa4 Ng5 Bc1 d2+ Kf2 d1N+ Ke1 d3 Nb5 Nc3 Kd2 Nh6 g8B Bf5 c8R e6 Nf3 Be7 f8B Nhf7 Bg7 Nh8 Rc4 Ra5 Ba3 e1R Bb4 Ne2 Bc5 Bg6 Rac1 a1Q Ra8 Qb1 b8R Be4 Bg2 Rg1 R1c2 Qf1 Ra6 Qf2 Bf1 Qe3+ Kd1 d2 Bf7 Rg4 Be8 Bf5 Ra2 Bb1 Rc8 Rg2 Bd7 Rg3 Rg1 h1Q Rg2 h2 Ra7 Qhg1 Rf2 h1Q Rh2 Qe5 Rac2 Qge3 Qa1 Qb2 Rca8 Qbb3 Bc8 Rg2 Nd6 Qb5 Ne8 Rg4 Rg2 Qh6 Rh2 Qeb3 Bg1 Qe3 Bd4 Rg7 Bf6 Rg8 Bg7 Rf4 Rb8 Rf7 Rbb7 Bd6 Rb6 Rb7 Rba6 Be7 Rb6 Qbc5 Rbb2 Qb5 Nc7+ Kd6 R2c3 Qbe8 Rch4 Nf4 Ba6 Ne2 Rhc4 Qb5 Rc1 Ba2 Kc2 d1R Ne5 Rd3 Nf3 Rb8 Rd1 Rb7 Rd2 Bb1+ Kd1 Ra3 Na8 Kd5 Rbc2 Ra5 Nc7+
3nBR2/Rk2b1q1/q3pB2/3Nnb2/2r1R2B/2Qr2rR/bn1n3K/r3NRB1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 f4 h5 Kf2 d5 c4 Kd7 g4 Kc7 Kg2 h3+ Kh2 d3 g5 h4 g6 a4 c5 d2 g7 a3 b6+ Kb7 f5 a2 f6 d4 f7 e3 b5 e2 Qa4 d1R Bd2 e1N Ne2 d3 Qd4 Ra3 Nf4 Nc6 Nd5 Ne5 Bg5 d2 Qc3 Qc7 Bf6 Nh6 g8R Bf5 Rg4 e6 Re4 Be7 f8R Nhf7 Bc4 Ra4 Na3 Nd8 Nc2 Rg8 Rb1 a1R c6+ Ka8 Rc1 Rg3 b7+ Ka7 Bf1 Rc4 b6+ Ka6 b8B Qc8 c7 Kb7 Ba7 Qa8 Rg1 N1f3+ Kh1 h2 Ne1 Qc8 Be2 Qd7 c8R Qb5 Ra8 Qa6 Qb4 Ra3 Rb1 Rd3 Rb3 Ra1 Qc3 d1N Rf1 Nd2 Bh5 Nb2 Be8 Rh3 Kg2 h1B+ Kg1 Rhg3+ Kh2 h3 Ra3 Bf3 Bh4 Bd1 Bf6 Bb3 Bh4 Qa5 Bf6 Ba2 Bh4 Ka6 b7 Qa4 b8B Kb7 Bg1 Qa6 Kh1 h2 Bba7 Rh3 Bad4 Rhf3 Kg2 Rg3+ Kh1 Ng4 Bdf6 Ne5 Rb3+ Bb4 Rf3 Rg6 Bd7 Rdd4 Qd3 Rg4 Bb5 Be7 Rf1 Rg6 Qc2 Rg5 Rg3 Rd3 Be8 Rg7 Kg2 Rg6 Qc3 h1Q+ Kf2 Qh3 Rge3 Qg4 Rf3 Qg5 Rh3 Bg4 Kg2 Bf5+ Kh2 Qh6 Qd4 Qg7 Qc3 Rgg3 Ra7+
B1N5/K1np1B2/2rB2q1/3k1Q2/2br2Bb/1R1nn1R1/2R1RnRN/4rqqq b - - 0 1 illegal: No possible last move
3qNr1n/p5n1/3BQ3/NbrrqN1k/B2R1nrB/1R6/n4bBN/KN2b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Qa5+ b4 g5 h4 f5 e4 Kf7 c4 Kg6 Kc2 d5 Kb2 f3 e5 f2 e6 f4 b6 g3 b5 d3 c5 d4 e7 g2 e8N g4 c6 g3 c7 d2 b7 d3 b6 f3 Be2 f1N Qe1 d1Q Bd2 f2 Ra3 Ne3 Nh3 g1N Nf6 f1R Bf3 g2 Nf2 Ne7 Ka1 Bd7 c8B N3f5 Qe6 Nbc6 b8N Rh5 b7 Ne2 Bg5 g1B N2g4 d2 Nh2 Nb4 Bg2 Rf4 Nc6 Rg4 b8B Na2 Rb3 Bf2 Bbf4 Be8 Bd7 Ng7 Rf1 Qd5 Na5 Rb8 Bc7 Nf4 Ba4 Bb5 Be5 Qe2 Rd1 Rc8 Bc7 Rh8 Bb8 Qd8 Be5 Rc3 Bb8 Qe5 Ne8+ Kh5 Bf6 Kh6 h5 Neg6 Bh4 Bb4 Bd6 Rg8 Bg3 Kg5 h6 Kh5 h7 Rf8 h8N Rc2+ Rc3 Rc1 Nf7 Nh8 Bh4 Rc2 Nh6 Rc1 Rf1 d1R Nf5 Rd5 Rd1 Rc2 Rd4 Rc1 Rb3 Bbe1 Bg3 Rcc5 Bh4
2R1R1Nb/n2r4/1nR1bq2/K1BB4/1NR5/4Q1np/B2nbbrk/B3B1nn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 c5 d3 Kc3 a4 c6 h3 b6 d2 b7 f3 b5 Kf4 e5 Kg3 e6 f4 e7 h4 Kb4 d4 b6 f2 g7 d3 c7 a3 Nf3 h2 Ng5 a2 Kb5 h3 e8B f3 Nc3 Nc6 b8B Na7+ Ka5 Ne7 g8R Be6 b7 Nec8 Rb1 a1B Ba3 Rh7 Qc1 d1B Nd5 d2 Bc6 Be2 Bc5 d1N Qe3 Nb6 Rc1 Bh8 Rc4 Rd7 Nb4 Qf6 Bd5 Nc3 c8R+ Bd6 Bg2 f1N Rge8 Nd2 Rc1 h1N Nf7 Kh2 Nh6 f2 Ng8 Bg3 Be5 f1N Bge4 Rb8 Bb1 Ra8 Bed4 Bf2 Ba2 Nfg3 Rc6 Rad8 b8B Rg7 Rc8 Rdd7 Bde5 Nf3 Rc2 Nb1 Ba1 Ng1 Bbe5 Rg6 Bec3 Rg4 Be1 Nd2 Na6 Nge4 Nb4 Rg2 Bf8 Neg3 R4c6 Qb2 R2c4 Qf6 Bc5
Q1K4B/2n4n/Rb2BRp1/2b1NnB1/BqrQ1B2/2k1qprq/B3brN1/8 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 e4 a5 b4 d5+ Kb3 f5 Ka4 g3 h4 g2 c4 d3 h5 Kd4 e5 g6 e6 d2 e7 f3 e8B f2 h6 f4 h7 f3 b6 Bc5 Kb5 a4 b7 a3 Rh5 a2 Rf5 Qg5 Rf6 Na6 Kc6 Qe3 b8Q Nc7 b5 Ra4 b6 Ba6 Nh3 g1R Kd7 Rg3 Na3 Kc3 b7 d4 Nf4 d3 Kc8 Bb5 Bh3 f1Q Be6 Qh3 Qa8 Rb4 Qda4 d1N b8B d2 Ng2 Bb6 c5 Be2 Bb5 Rc4 c6 Bc5 Q4a7 Bb6 Ba4 Bc5 Rb1 a1B Rb6 Bb2 Ra6 Bb6 Nc2 Ba3 Nce1 Be7 Nd3 Bec5 Rf8 Nf6 Ne5 Rg8 h8B Nh7 Nd7+ Rg7 Ne5 Rd7 Rf6 Rdd4 Nh4 Rdg4 Bf7 Rg2 Bd5 Rf2 Ng2 Rg3+ Be6 Nb5 Qg7 Nc7 Qd7 Rf4 Ba2 Rc4 Qg4 Qd4 Qd7 Ne3 Qg4 d1Q Qd7 Nc2 Bg5 Qe3 Qg4 Nd4 Qd7 Ne8 c7 Nf5 Qdd5 Qb3 Qd4+ Kb4 Kd7 Qb2 c8B Qbc3 Bd6 Nc7 Kd8 Qcd2 Be6 Qe1 Kc8 Q1d2 Bf8 Qe1 Bfh6 Q1d2 Qd7 Kc3 Bf4 Qb2 Bhg5 Qb4 Qd4+
B3r1N1/qqB1Bp2/4q1R1/3k2p1/1q2bB2/2rR1BnN/nqQ4K/1BbnQ3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 b4 g5 e4 a5 c4 d3 h4 f3+ Kh2 a4 h5 a3 c5+ Ke6 e5 d5 b6 a2 h6 d4 b5 d2 b7 f2 c6 d3 c7 Bg7 b6 Bf6 h7 Qf8 Nc3 Qe8 Qc2 d1Q Nd5 d2 Be2 f1Q Nh3 Qfe1 Bf3 Ne7 Ba3 Nbc6 b8B Nb4 b7 Nf5 Ne7 Qb1 Ng8 d1N Rg1 Qe4 Re1 Kd5 e6 Ng3 e7 Bb2 Re3 Bf5 c8B Bc1 Bc7 Ra5 b8B Rc5 Ba6 Rc3 Bd3 Qb5 e8B Qb7 Ba4 Qb2 Rb1 a1Q Bf4 Na2 Bbc7 Q2b3 Be7 Qab2 Be8 Q3b4 Bc6+ Kd4 Bd5 Qe6 Bc6 Be4 Ra1 Q7b6 Ba8 Qb7 Rb1 Q2a3 Rb3 Qb2 Ra3 Kd5 Ra6 Qf5 Rg6 Qe6 Nh6 Re8 h8Q Nf5 Ng8 g3+ Kh1 g2+ Kh2 Ng3 Qh4 Nf5 Qe1 Ng3 Qce2 Qf6 Bb1 Qa6 Nf2 Qa7 Qc2 g1Q+ Kh3 Qf1+ Kh2 Qfa6 Nh3 Qe6 Rd3+
n4QB1/Br4br/n2B1B1k/3bb3/1R2rN2/1B2q3/1pKn1q1p/R1B1bQ1N b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 Kg6 a4 h5 g4 e5 f4 b5 f5+ Kh6 f6 c5 f7 b3 d6 c4 d5 b4 d7 h3 d6 h2 a5 e3+ Ke2 c3 Kd3 h4 a6 h3 a7 c2 Ra5 e4+ Kd4 b2 Ra2 b3 Kc3 Rh7 Ra4 Nf6 Ra6 Qe7 d8B Bb7 d7 Bg7 f8B Bd5 Ra4 Na6 Ne2 Rb8 a8Q Rb7 Nf4 e2 Nd2 e1Q Bb6 e3 d8B e2 Ba7 Qf2 Rb4 e1B Bc4 b1N+ Kd3 b2 Nf1 Qe8 Bb3 Nd7 Bf6 Nb6 Ng3 Nd2 Bd6 Qe7 Rf1 h1R Qf8 h2 Qf3 Rg1 Nh1 Na8 Kc3 Rg3 Qd3 Re3 Rg1 Re4 Qf1 Rh8 g5+ Kh7 g6+ Kh6 Qf7 Rh7 Qf8 Nc4+ Bd2 c1B Kd3 Qe6 Bde3 Bcd2 Kc2 Bc3+ Bd2 Qc5 Bc1 Nd2 Qc8 Qf2 Qc5 Bf8 g7 Be5 g8B Bg7 Qc8 Qe7 Qf8 Qe6 Rg3 Qe7 Rc3 Qe8 Rc5 Qe6 Ra5 Qh3 Ra3 Qhe3 Ra1
R1b5/2r4k/2nNq1q1/NqrB4/Qp6/2BQb1RB/4pbB1/KB1bnBr1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 c4 Kg6 Kc2 d5 Kb2 e5 f4 b5 a4 h5 g4 e3 c5 e4 a5 h4 f5+ Kh7 a6 b3 c6 e2 f6 e1B f7 e3 a7 e2 c7 h3 Nd2 h2 Nc4 d3 Nh3 d4 Ra2 b4 Bd2 Bf2 Na5 Bh6 f8Q Nf6 Qd6 Qe8 Rg1 h1Q Bc3 d2 Ka1 d3 Rg3 Nfd7 Ra3 Qhe4 g6+ Kg8 g5 Rh7 g7 Nc5 Qc6 Q4e6 Qa4 Nc6 Ra2 Rb8 a8B Rb5 Qb1 d1B Ra3 d2 Qd3 Be3 Nf2 Q8d7 Ne4 Bf2 Nd6 Qde8 Qe4 Nd3 Ra2 Ne1 Qd3 Rc5 Bb7 Na7 Bbg2 Qb5 Ra3 Nc6 Ra2 Ba6 c8B b2+ Kb1 Qe4 Bch3 Bc8 Ra1 Rh8 Ra3 Kh7 Ra2 Rf8 Ra3 Rf7 g8B+ Kg6 Ra2 Rc7 Bd5 Kh7 Ra3 Qg6 Ka2 b1R Bde4 Kg8 Bd5+ Qe6 g6 Bhe3 g7 Rc1 Rg6 Kh7 Rg3+ Qg6 Kb2 Bc2 Ba2 d1Q Bb1 Qd2 Ka2 Bd1+ Ka1 Qc2 Ra2 Qb3 g8B+ Kh6 B8d5 Kh7 Bde4 Qe6 Ra3 Re5 Bd5 Rh5 Bg4 Rh1 B4h3 Rg1 Bd2 Rc4 Bc3 Rc5 Qac2 Bd2 Nab7 Rc4 Ra8 Rc5 Qa4 Bde3 Na5
r2RN3/N3n1KB/Qr3R2/b1bnRqN1/p1b2N1q/3p2B1/2q2nR1/1nk1N3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 e4 f5 b4 d5 c4 g3 b6 a4 b7 g2 c5 d3 c6 d2 b5 d4 c7 f3 b6 f2 Ra2 f4 Ne2 g1Q Na3 f3 Nc2 Ne7 Ne1 Be6 c8N Na6 b8R Bc4 b7 Qg2 Na7 Rh6 Nf4 Nc7 Qe2 d1N h4+ Kg4 h5 g5 Qd3 Rb6 h6 Ncd5 h7 Qh2 Bg2 f1N h8N f2 Nf7 Nd2 Rf1 Nb1 Rc8 Qh4 Rc5 Qc8 b8R Qc6 Bf3+ Kg3 Ra5 g4 Rd8 Qc5 Qe2 d3 Ng5 Bh6 Ba3 Qc6 Bd6 Bg7+ Ke6 Bc3 Kf7 Qc8 Rc5 Ba5 e5 Qc7 e6 Qc6 Rh1 f1Q Kg7 Nf2 Be4 Qc8 Qb2 Qe2 Qb5 Qc2 Qa6 Qd7 Nf7 Qb5 Bh7 Qd7 Neg2 Kf3 Rf1 g3 Ne1+ Ke3 Ng5 Kd2 Rb5 g2 Be5 Ng8+ e7 Qf5 e8N g1B Bd6 Nge7 Bb8 Ne3 Re5 N3d5 Rb2 Ne4 Bc7 Bc5 Rf2+ Kc1 Rg2 Rbb8 Rb6 Nf2 Rf6 Rb6 Re3 Ba2 Nh5 Qc3 Bg3 Qc2 Re5 Bc4 Nf4
Nn2r1n1/4RNr1/1bnN1q2/2p1B1q1/NpB1bn1Q/3N2N1/3Qb2K/k1q1R3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kd6 e4 h5 a4 b5 g4 f5 Kg2 h3+ Kh2 h4 g5 f3 g6 b3 a5 b4 a6 f4 g7 f2 a7 f3 Qd3 b2 Ne2 Rh7 Qc3 Bf5 Ra4 Qg5 Ra3 c5 Ng3 Be7 Ra5 Bd8 Qd2 Bb6 Bc4 f1Q Nc3 b1Q Na4 f2 Bb2 Qbc1 Rg1 Bg4 Ba1 Be2 e5+ Kc7 d6+ Kc6 Kh1 h2 e6 Qd8 d7 Qg5 d8N+ Kd6 Ba6 Kd5 Rb5 Kc4 e7 Kb3 e8N Ka3 d5 Kb3 Bb2 Ka2 d6 Kb1 d7 Ka2 Ba3+ Ka1 Nd6 Qfe1 Qc2 f1N Ne6 Nd2 d8Q Qf2 Re1 Nf3 Qd2 Nd4 Nf4 Ndc6 Nd3 Qff6 Kg2 h1B+ Kh2 h3 Bb2+ Ka2 Ra5 Be4 Be5+ Kb1 Bf4 Ka1 Bc4 Na6 Qe7 Re8 a8N Nab8 Qd8 Nh6 g8N Rg7 Ne7 Ng8 Nf7 Qb1 Nc8 Qd1 Ncd6 Qc1 Kg1 h2+ Kf2 h1N+ Kg1 Bg6 Ra7 Nf2 Kh2 Nh3 Re7 Be4 Be5+ Nd4 Qc8 Nf4 Qe6 Qfh6+ Qh3 Qhf6 Nc3 Ndc6 Qh8 Na7 Qh4 Nac6 Na4+
B4N2/n1rNb1nN/2B1rNKp/k2Bq3/4nr1p/n2bq1B1/2R1Qb2/2N3R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 a5 c4 d5 e4 Kd7 g4 Kc7 b4 Kb6 e5 f3 g5 a4 g6 f4 g7 a3 e6 a2 e7 f2 e8N f3 Bd2 h6 Nf6 Ne7 g8B Ba6 Nc3 Qc7 Qc2 Nbc6 Bg2 f1R Be1 f2 Rh2 Re8 Nh3 Qe5 Ne2 Na7 Ng5 Rh7 Nc1 Nf5 Qe2 Rc7 Ngh7 Re6 Bf3 Ng7 c5+ Kb7 c6+ Kb6 Rb1 a1B Rg2 Be7 Bf7 Rd7 c7 Bc3 c8B Rc7 Bd7 Bd2 Bc6 Be3 Kc2 d3+ Kd1 d2 Kc2 d1N Kd3 d4 Ba8 Rh1 Bfc6 f1Q Bg3 Qg1 Bg8 Rd6 Bgd5 Nc3 Rb2 Qf2 Rg1 Nb1 Ra2 Na3 Rc2 Qg5 Ke4 d3 Be8 d2 Bec6 Qg6+ Ke5 Qe8 Ke4 d1N Ke5 Ne6 Ke4 Qe1 Kf5 Qb8 Kg6 Ng7 Rf1 Rh3 Rg1 Bf2 Qd3 Be3 Be5 Rf3 Bg3 Rb7 Qf1 Bf2 Qd3 Qe3 Qe2 Kc7 b6+ Kc8 b5 Nc3 Qf1 Rf4 Qe2 Rbd7 b7+ Kc7 Kf7 Kb6 Kg6 Qc7 b8N Ka5 b6 Re6 b7 Qce5 Rd1 Red6 Rg1 Rc7 Nd7 Ne4 Ndf8 Bd3 b8N Re6 Nbd7
2Bn3N/NBr1NR1k/bBpn1rr1/3q1R2/N2n1q2/1pB3q1/B2bQ3/1K2n3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 b5 Kd2 f5 Kc2 Kf7 g4 Kg7 a4 h5 e4 b3+ Kb2 f3 e5 f2 d6 h3 e6 h4 e7 b4 e8B h2 a5 h3 g5 f4 g6 f3 a6 Nc6 a7 Qh4 d5 Nh6 d7 Nd4 d8B c6 d6 Qg3 d7 Rh7 Bb6 Ba6 d8N Nf7 Bc4 f1Q Bd7 f2 Na3 Be7 Qd2 Bg5 Qe2 Bd2 Kb1 b2 Ba2 Rc8 a8B Rc7 Bde6 Rh6 Bc8 Kg8 g7 Kh7 g8N Rg6 Qg4 Qc4 Nb5 f1R Bab7 Rff6 Ne2 Qd5 Rd1 h1Q Ne7 h2 Rf1 Qhf3 Na7 h1N Nc3 Qff4 Qe2 Nf2 Na4 Ne4 Rf2 Ned6 Rf3 Ng5 Nf7 Nge6 Nh8 Nd8 Nf7 Qfh4 Rf5 Qhf4 Nh8 N4e6 Kc2 b1N Ba3 b3+ Kb2 Rg5 Bb4 Na3 Bc3 Rgg6 Rf1 Nc2 Kb1 Ne1 Rf3 Nd4 Rf1 Re6 Rf8 Ref6 Rf3 Qfg5 Rf5 Q5f4 Rf7+
Q4q2/Br4RN/p7/RBRR1Nq1/1nKpbR2/Q5rn/rk5b/2Rb1rq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 g4 Kd5 b4 h5 g5 f5 b6 f3 b7 h3 b5 h2 b6 f4 g6 f2 g7 f3 Na3 h4 Nh3 Na6 b8R Rh7 b7 Bd6 Ng5 h3 Nc4 Nh6 g8R Ng4 e4+ Kc5 e5 Kb4 Rg1 h1R e6 Bh2 e7 d5 e8R Bf5+ Re4 Rg7 Be2 f1R Nh7 f2 Ne3 Qg5 c4 Rg6 Qe1+ Kb3 c5 Rg7 Bd2 Kb2 Rbd8 Bg6 b8Q+ Rb7 c6 Bf5 Rg3 Rhg1 c7 Rg2 Rf3 Rg3 c8R Bg6 Ba5 Bf5 Rcc1 Nb4+ Kd2 d3 Bb6 d4 Ref4 Be4 Rd5 a6 Qa7 Rc8 Qa8 Rc5 Qd1 Ra5 Ba7 Ra2 Rff5 Nf6 Qe1 Nh5 Rg7 Nf4 Rfe5 Qg4 Nf5 Qg5 Kd1 d2 Bb5 Rfg1 Rcc5 f1Q Rac1 Qf2 R1c4 Rf1 Rc1 Nfd3 Rf4 Qg1 Ke2 d1B+ Kd2 Nf2 Nh6 Qh1 Qe3 Qf3 Rh4 Qf8 Rf4 Bg1 Qd3 h2 Nf5 h1Q Qf3 Bh2 Qe3 Nh3 Qd3 Nc6 Qe3 Bef3 Kd3 Be4+ Kc4 Qg1 Qd3 Nb4 Qf3 Bb1 Qa3+ Ka1 Bd7 Qe8 Ra5 Qee7 Rdc5 Qf8 Qe3 Kb2 Bb5 Bbc2 Red5 Be4 Qa3+
4b1kr/nB1p1n2/2b2R2/1qnq2BR/1p1RR2Q/b2B3r/R3BN2/b1q2NK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 a4 Kf7 c4 h5 f4 e5 Kf2 b5 g4 e4 f6 h3 c5 h4 f5 h2 c6 b3 a5 d3 a6 b2 c7 e3+ Kg2 d2 a7 e2 g5 e1B Ra2 Na6 Bd3 Ba3 Qg4 d1B Nh3 b4 Nf2 Nh6 g6+ Kg8 g7 Nf7 Nd2 b1N Nf1 Bc3 Bg5 Nc5 Qf4 Ba6 c8B Qb6 Bb7 Bb5 Bf3 Ba1 Bfe2 Rb8 a8B Nc3 Bb7 Re8 Qg3 Re3 Qf4 Rh3 Qc4 Kh7 g8R Bc6+ Qe4 Qa6 Re8 Nb5 Re5 Bc2 Rd5 Na7 Rd4 Nd8 f7 Qb5 f8R Nf7 Re8 Kg7 Re5 Kg8 f6 Bb3 Ne3 Be6 Re1 Bg4 Nf1 Bh5 Ng4 h1Q+ Kf2 Qf3+ Kg1 Qe3+ Nf2 Qc1 Rf5 Rf3 Qf4 h3 Qh4 Re3 Bd1 Rf3 Ree4 Re3 B1e2 h2+ Kg2 Rh3 Kh1 Nd8 Kg2 Be8 f7+ Kg7 f8R Nf7 Nd1 h1Q+ Kf2 Qf3+ Kg1 Qh5 Nf2 Qf3 Rf6 Qf5 Rh6 Qd5 Rh5 Nd6 Rff4 Nf7 Rf3 Kg8 Rf6
1r1n1bk1/2pb1r2/q3n1BR/BBrNpNQ1/4qR2/5nRB/1K2R2n/1B4q1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 g4 Kf7 f4 b5 d4 e5 Kd2 h5 Kc2 e3 a4 h4 g6+ Kg7 d5 b3+ Kb2 e2 d6 e1R f5 h3 a5 b4 a6 h2 d7 Re3 a7 Re1 g5 Re3 Bh3 Nh6 f6+ Kg8 g7 Qe7 d8R Qe6 Rd2 Qa6 Nf3 Rh7 Re2 Nc6 Qd8 Rb8 a8B Ng4 Nd4 Rc3 Bd2 Bd7 Ra3 Rc1 Qe7 Nd8 Be4 Rc3 Be1 Rc1 Nf5 c3+ Ka1 c2 Kb2 Rc8 Nc3 Rb8 Rf1 h1Q Rf4 Qg1 Nd5 Nh2 Rh4 Rd1 Rh6 c1N Bb1 Rd4 Qc5 Rc4 Qe3 Rc5 Qd2 Na2 Qc1 Nc3 Bd2 Nb5 Bc3 Kf7 g8B+ Ke8 g6 Nd4 Qd2 N4e6 Qg5 Rg7 Bh7 Rf7 Ka1 b2+ Ka2 Re7 g7 Kf7 Bg6+ Kg8 Be1 Rf7 Bd2 Qb6 Rg3 b3+ Ka3 Qb7 Ba5 Qa6 Bd3 b1N+ Kb2 Rc6 Bb5 Nd2 Nh4 Re7 Ka3 b2 Ka2 b1Q+ Ka3 Qf5 Kb2 Qf4 Bb1 Ndf3 Bg6 Rc5 Bb1 Kf7 g8B+ Ke8 Bgh7 Kf7 Bhg6+ Kg8 Rf2 Rh7 Re2 Be7 f7+ Kg7 f8R Qe4 Rf5 Bf8 Rf6 Kg8 Rf4 Rf7 Nf5
2B2r2/BKNbBbRp/3qbB2/2b4R/bkp5/1rQ2Bn1/5N1r/1rRRn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 c5 g5 a5 d5 a4 b6 f6 g6 c3 d6 h3 Kd5 f3 e4 c2 e5 h2 e6 f2 d7 f5 g7 a3 e7 f4 e8B a2 b7 f3 Bg2 f1B Na3 f2 Bg5 c1R Qe1+ Rc3 Bf6 Bb5 Nh3 f1B Bf3 c4 Nf2 Ba4 Rc1 a1R Nb5 Bc5 Nc7 Na6 b8B Nh6 g8R Rb1 Ba7 Nf5 Rg7 Ng3 b3 Qe7 d8R Rf8 Bd7 Bh3 Qd2 Rb8 Bf5 Rb5 Kc6 Be6 Qd3 Ra5+ Kb7 Qd6 Be7 Bf7 Bc8 Bhe6 Rhd1 h1B Re8 Ka3 b4 Rcb3 b5 Nb4 b6 Nc2 Qc3 Ne1 Bf6 Bed7 Re5 Bg2 Rh5 Bgh3 Kb8 Bhe6 b7 Ra6 Ka8 Rb6 b8B Ra6 Qb2+ Kb4 Kb7 Bab5 Qe5 Ra2 Qa1 Ba4 Be7 Be3 Bd4 Re2 Bdf6 Bc5 Ba7 Rd2 Ng4 Rg2 Nf2 Rh2 Qc3+
3Nb3/RnN5/4nN1N/6rR/nb1q1NB1/2kbp1QR/2rRn2p/K1B2rb1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 b4 Kd5 f4 a5 f5 h5 f6 e5 g5 h3 f7 h4 g6 a4 g7 a3 c3 h2 Kc2 d3+ Kb3 a2 Kb2 Kc4 b6 d5 b7 h3 b5 d4 b6 e3 Bg2 e4 Nf3 e2 Be3 e1R Qa4+ Bb4 f8R d2 Ng5 d1B Rf3 d3 Qc2 d2 Nf7 Ne7 g8N Bf5 Nf6 Nd7 b8N Nf8 b7 Ra5 Na6 Nc8 b8N Nd6 Nc7 Nb7 Nh6 Qd4 Nc6 Ne6 Nd8 Rf1 Qb3+ Kd3 Rf2 Bh5 Bf3 Be8 Bg4 Rg8 Rg2 Rc5 Re2 Rg5 Bf4 Qd7 c4+ Kd4 Qg3 d1N+ Kc2 Qg7 Nc3 Nb2 N3d5 Na4 Bc1 e3+ Kb3 Bd3 Rd2 Rc6 c5 Qh8 Rb1 a1B Ka2 Qg7 Nf4 Kc3 Rbb2 Qd7 Rb1 Bb2 Ra1 Qd4 Na6 Rc8 c6 B2a3 c7 Bd6 Rg1 h1N Rgg2 Bab4 Rh2 Rb8 c8R+ Bc7 Qg2 Ng3 Rh1 Ne2 Qg3 Ra8 Rb8 Be5 Nc7 Ra6 Ra8 Rc6 Rb1 Bc5 Rb5 Bb4 Ka1 Rc4 Ra7 Rc6 Qf2 Bed6 Ng2 Bh2 Qg3 Bg1 Nf4 Rcc5 Rh2 Rc6 Rf2 h2 Rf3 Rg8 Rh5 Rg5 Qe1 Rc4 Qg3 Rcc5 Qe1 Kc4+ Bb2 Kb3 Rfh3 Rc3 Bc1 Rc2+ Kb1 Kc4 Qg3 Kc3 Ka1
1Q3n1R/b1br4/qN5B/pN5K/r2N3N/2nB1n1r/1kB1pNB1/1rn2bR1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Ke6 g4 Kd5 b4 Kc4 b6 d5 c3 e5 f5 h5 b5 e3 Kf3+ e2 b7 h3 b6 e4+ Kg3 h4+ Kf4 h2 f6 d3 Kg5 e1B Bd2 e3 Ra2 e2 Nh3 d4 Nf2 h3 Bg2 Bd6 Ra1 Nh6 Kh5 Nf7+ Bh6 d2 g5 d3 g6 Bc7 g7 Qd6 g8B Nd7 b8N Nf8 b7 Qa6 Bh7 Ne5 f7 Nf3 Nc6 Bd7 Rg1 h1R b8N h2 Nd4 Bh3 Qc2 d1R Nd7 Bd2 Qb2 Be3 Qb8 d2 Bc2 Rh7 Ra5 Rf1 Rg5 d1N Rg8 Re1 Rh8 Rf1 Nb5 Re1 Bd3+ Kb3 c4 Nc3 c5 Kb2 N1a3 Rb1 c6 Bc5 Nd4+ B5b6 Rc1 Rd1 Nab5 h1N Bc2 Rd3 Rg1 Bc5 Ng4 Nf2 Nb6 Re3 Bd3 Re7 Bc2 Nd3 Nf2 Nc1 Bd3 Rd7 Bc2 B7d6 c7 Bg3 c8B Bc7 Bh1 Bf1 Bg2 Rg7 Bb7 Rg8 Bbe4 Rg3 Nf5 Rh3+ Nh4 Rd4 Bed3 Ra4 Qb7 Rd8 Qa8 Rd7 Qb8 Ng6 f8N Bd4 Nh7 Nf8 Ng5 Qb7 Nd5 a5 Ne6 Ba7 Ned4 Qa6 Nb6
r3qQ1r/2QB1R1R/2rq1BB1/p2qr1pN/7N/3nn1K1/BBbb3B/q4k2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 c5 g5 h5 a5 c6 g3+ Kg2 f3+ Kh3 g2 h6 f2 b6 d3 h7 Kd4 b7 f4+ Qg4 f3 b5 d2 b6 Ke3 c7 d4 e5 d3 e6 Nc6 b8Q Nh6 e7 Nb4 e8B Bf5 Ne2 g1Q Bg6 Qe8 Bb2 d1Q c8B d2 b7 Bc2 Ng3 Nf5 Bd7 Nd3 Nh5 Bb4 Qc4 Bc3 Be2 f1R Qcc7 Kf2 Qbd8 Ke1 b8B f2 Bg4 Ne3 Bge6 Ke2 Ba2 Re1 Qf6 f1R Qf8 Rf2 Rh2 Qh1 Kg3 Qd5 Rh4 Rf6 Rh1 Rg8 h8B Rc6 Bf6 Rh8 Rf1 Qc1 Rf5 d1Q Nd2 Bb4 Nf3 Bd2 Nh4 Qd6+ Bfe5 Qd5 Rf7 Qb1 Bf6 Kf1 Bc4 Re2 Ra4 Qa1 Ba2 Ng4 Rb4 Re5 Re4 Ne3 Rh7 Rf5 Ree7 Re5 Ref7 Qg4+ Kh2 Qb4 Kg3 Qbd6 Ba7 Ng4 Bg1 Ne3 Bh2
r1Qn1r2/R2Qp3/3B4/nQ2Q2q/1Q4rN/p3KQ2/BqRn4/bNr1kbn1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Kg6 g4 Kg5 c4 Kf4 c5 d5 b6 h5 c6 a5 c7 h3 f3 Kg3 b7 Kf2 f4 h4 f5 h2 g5 e3+ Kd3 a4 g6 h3 b5 e2 b6 e1N+ Kd2 a3 g7 d3 f6 d4 f7 Nc6 b8Q Na5 b7 Nh6 g8Q Bg7 f8Q+ Nf7 Qh5 Nf3+ Kd1 d2 Kc2 d1R Bf4 Rc1+ Kd3 Qd6 Qg6 Nd8 Q6e6 Qb6 Ke4 d3 Ra2+ d2 Rc2 Ba1 Qgg4 Qb2 Bc4 Bd7 c8Q Bb5 Qff7 Rf8 Ba2 Ba6 Rc7 d1Q Qed7 Bf1 Bd6 Ke1 Ke3 Qd5 Qd4 Qf5 Qe5 Qh5 Ne2 Ng1 Ng3 Ne2 Rg1 h1R Rg2 h2 Nf5 Rg1 Nh4 h1N Qf3 Nf2 Rh2 Ne4 Rf2 N2g3 Rfc2 Nd2 R7c5 Nac6 Ra5 Ne2 Ra7 Rg5 Qbc7 Rg4 b8Q Ng1 Qcb6 Na5 Qb4 Bc4 Q8b6 Bf1 Q6b5
1KnQ4/3R1N2/p3BnR1/1N1Nprr1/r1qB1k1b/Npb5/nNb4q/R1R5 b - - 0 1 illegal: No proof kernel
2qrrQ2/pB1p3k/4R1qR/3rq2B/3pnbb1/N5n1/2B1n1BN/K1B1B2Q b - - 0 1 illegal: No possible last move
kRqnB1b1/r3bN2/pbR5/bb5R/RBpR2pn/2Q1Q1r1/2N1r3/2K3R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 h4 f5 e4 g5 d4 c5 Kd2 Kc7 b6+ Kb7 d5 a6 e5 f3 e6 f4 e7 f2 e8Q g3 h5 g2 b5 g4 h6 f3 h7 Nh6 d6 Qf6 d7 Rg8 h8R Nf5 d8R Nc6 Qc2 Be7 Nh3 g1B Rh5 Qf8 Ng5 Ra7 Qc3 Be6 Ba3 Nh4 Rd4 Nd8 Kc1 Ka8 Bb4 Rg6 Bg2 f1B Ra4 Bg8 Na3 Re6 Nf7 Re2 Nc2 Bf2 Rg1 Be1 Qe3 c3 Qd7 Qe8 Qc7 Qc6 Qg3 f2 Be4 Qb7 Bg6 Qc8 Qh3 c4 Qhg3 Bg2 Qh3 Bc6 b7+ Kb8 Qhf3 f1R Qf6 Rf3 Qh8 Kc7 b8R Rg3 Rb6 Be8 Rbd6 Kb7 b6 Bb5 Rc6 Kb8 b7 Bf2 Ne5 Be1 Be8 Bf2 Na3 c2 Nf7 Be1 Rdd6 Bf2 Qhc3 Be1 Rd4 Bf2 Kb2 c1B+ Kb1 Bd2 Nc2 Bde1 Rcd6 Kc7 b8R Bd2 Rbb6 Bde1 Rbc6+ Kb8 Kc1 Ka8 Rd7 Kb8 Bc5 Rg2 Rd2 Bg3 Qf3 Ne6 Qe5+ Ka8 Rb7 Nd8 Qb3 Bf4 Qee3 Bc7 Rd4 Bea5 Qbc3 Bcb6 Bb4 Rg3 Rb8+
NB3brR/p1B3R1/2q2n2/NnQ2K1p/rr5p/2r2b2/2B1R1rB/kBn4R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 h5 b4 d3 c4 d2 g4 d6 c5 f3 b6 f2 b7 Nd7 b8B Ke6 b5 f6 c6 Ne5 b6 Qd7 c7 Nd3 Nc3 Bb7+ Nd5 Qc6 Qc2 d1R c8R Rd2 Bc7 Rb8 g5 Ba8 Bg2 f1R g6 Rf3 g7 Rb7 Bb2 Nc1 Be5 Rc3 Bh2 f5+ Kf4 Nf6 g8R Rb8 Rg7 Rg8 e4 Rf2+ Bf3 Rg2 e5 Rb7 Ra2 Rb8 Ne3 d5 b7 d4 Bd1 d3 Nh3 d2 Nc4 Kd5 e6 Kc5 e7 Kb4 Ke5 f4 e8B f3 Nf4 f2 Ne6 f1R Bg6 Rf4 Na5 Rfc4 Rb2+ Ka3 Kf5 Ra4 Re8 Rd8 b8B Rdd4 Rd8 Rdb4 Rc8 Qc4 Re8 Bf3 Rd8 Qc6 Rc8 Rcb3 Qc5 Rc3 Bc2 d1N Bb1 Ne4 Re2 Nf6 Bc2 Kb2 Bcf4 Be7 Ke5 Rd8 Bb1+ Rc2 Bfg3 Ka1 Nc7 Nc3 Na8 Nb5 Bf4 Rcc4 Bgc2 Rc3 Kf5 Rh8 Rcg8 Bf8 Bfc7 Rd4 Rh7 Rdb4 Rgg7 Rg8 Rh8
1r1Nn1Q1/p3n1N1/bp1p4/3B2b1/1RR1r3/K1Rr3k/B2RR1qB/2nBr2b b - - 0 1 illegal: No proof kernel
3nr1kB/R1n2pN1/NR3Knp/1B1B3q/b1R2Q2/3nn3/p1Bb3r/1R3q1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 Kd3 d5 b4 f3 e4 a4 c4 h6 g4 h3 g5 h2 g6 a3 b6 f2 g7 Bf5 b5 Be6 c5 Rh7 b7 Na6 b8R Bh3 c6 Ke7 e5 Qd6 e6 Nc7 b6 Qb4 b7 Ra5 Qd2 Qc5 Nc3 Rh8 Bg2 f1Q+ Nge2 a2 Bb2 Kf6 e7 Bd7 e8B Ne7 g8B Kg7 Ne4 Ne6 c7 Ba4 c8B Ng6 Bh7 Nd8 Rb1 Rg8 Rg1 h1N Bb5 Be7 Bc3 Re8 Qf4 Bg5 Be6 Kh8 Ra8 Nf2+ Kd2 Nd3 b8R Kg7 Ra7 Kh8 Rb6 Kg7 Ba6 Rb5 Rc1 Rb2+ Rc2 Kh8 Bh1 Nb4 Bd3 Qb1 Rab7 Ne5 Bg6 Na6 Ra7 Nc7 Bb5 d3 Nd4 Kg8 Nf5 d4 Qe3 Qd5 Nc5 Bf4 Bh5+ Ng6 Bd1 Qf3 Bb3 Qh5 Na6 Qa1 Bbd5 Qc1+ Ke1 d2+ Kf2 d3 Bh8 Bg5 Kg3 Qb1 Bd1f3 d1N Bfe4 d2 Rc4 Nf2 Ng7 d1N Bf5 Rd2 Bc2 Nd3 Qe4 Be3 Qf4 Rh2 Re1 Bd2 Rf1 Qe5 Kg4 Qe2+ Kf5 Qh5+ Kf6 Ne3 Rg1 Qbd1 Re1 Qdf3 Rd1 Qf1 Rb1
8/Q5qR/1rR2b2/n1rb1nnN/4R1N1/q1pn2Rk/pRB4p/b1BNN2K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Ke6 Kg2 f5 d4 c5 e4 a5 b4 h5 b6 f3+ Kh2 f2 e5 a4 b5 c3 g5 f4 g6 Kf5 g7 c2 d5 a3 b7 h3 e6 f3 d6 Kg4 d7 h4 b6 c4 e7 c3 e8N a2 Bg5 c1B Nd6 Nf6 g8N Nh7 Be2 f1Q Nf7 Ra5 Bd3 Nc6 b8R Qe7 d8R Qa3 b7 Rc5 Rd6 Na5 Rc6 Be7 Nd2 Be6 Ne4 Bb2 Re8 Bf6 b8R Bd5 Qa4 f2 Bc1 Ng5 Nf3 Rh6 Bc2 Qa6 Rb5 Qa7 Ne1 f1N+ Kg1 Ne3 Nf2+ Kg3 Nd1 Nf5 Ne5 Qg7 Ng4 Rg6 Rb1 Ba1 R1b2 Rh6 Re4 h2+ Kf1 h3 Rb8 Nc4 Qa7 Na5 Rg1+ Kh4 R8b7 h1N Rg3 h2 Kg2 Nf2 Rd7 Nd3 Kh1 Qf8 Rh7 Qg7 Rg2 Kh3 Rg1 Be7 N8f6 Bd8 Nh5 Rg6 Rc7 Rb6 Rc6 Bf6 Rg3+
2n2q2/1nb3k1/1BNQ1bBr/1p1N1q2/qRRR4/5B1B/RKp2R1p/1b1r1b2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 b5 Kc2 c5 f4 h5 g4 e5 a4 h3 a5 b3+ Kb2 c4 f5 e3 a6 h4 d6 e2 d7 e1B g5 h2 f6 e4 a7 e3 d5 e2 d6 h3 Nf3 Rh6 Nd4 Be7 Be3 Ba5 Nc3 e1Q Ra2 Qh4 Nd5 Bc7 Nc6 Na6 Bb6 Qf8 d8R Nc5 d7 Nb7 Rg1 h1Q Rg4 h2 Bh3 Kg6 f7 Kg7 g6 Qf3 Re8 Bg5 d8R Qf5 Ree4 Ne7 Qd2 Rb8 a8B Bf6+ Rd4 Be6 Rc8 Bd7 Qf4 Be6 Qd6 c3+ Ka1 c2 Kb2 Bg5 Rb4 Bf6+ Rgd4 Qhe4 Ne3 Bc4 Nd5 Qg8 f8R Bf1 Kc3 b2 Kb3 b1B Kb2 Kh8 g7+ Kh7 Rf7 Qf8 g8B+ Kh8 Bh7 Qef4 Re8 Rd8 Bg6 Nc8 Re2 Qh4 Rfe7 Rd7 R7e4 Kg7 Rg4 Qe1 Rc4 Qa5 Rf2 Qa4 Rb4 Re7 Rh4 Re1 Rhf4 Rd1 Rh4 Bg5 Rdc4 Bgd8 Rhd4 Bf6 Ne5 Na5 Nc3 Ne7 Bf3 Nc8 Nc6 Nb7 Nd5
2Rbr1r1/q3nqn1/3pR2N/pK1NNn2/pB6/3NN2b/q1Q1B1n1/R2R3k b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 b4 e5 f4 a5 f6 h5 g5 d3 b5 d6 f7 d2 f5 h3 b6 h4 f6 h2 g6 h3 g7 Ke3 b7 Kf2 Ne2 e4 Nbc3 e3 Nd5 Qb6 Nd4 e2 Nf5 e1N Nfe3 Nc6 b8R Ng2 Be2 Qa7 Ba3 Nce7 Bb4 Nf5 Kb5 Nge7 g8N Ng7 Nh6 Rg8 c4 Bf5 Rg1 h1Q c5 h2 c6 Bh3 Qc2 d1Q c7 Qd2 Rgd1 Qf1 c8R Kg1 Re8 h1N Rbc8 Nc6 Re5 Ng3 Re6 Be7 f8N N3f5 f7 Kh1 Nd7 Bd8 f8N Nce7 Ng6 Re8 Ngf4 Rg8 Qd3 Qb2 Qc2 Qa2 Be1 Qf3 Ne5 Qh5 Nfd3 Qf7 Rc6 Bb6 Rc5 Rae8 Rc8 Bd8 Bb4+
1K3RRq/1B3RB1/Bp2R1r1/B3kb2/3r2b1/N1n1bn1p/1p1n2Q1/2B2qNn b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 c5 g4 h5 d4 h3 a4 h2 a5 h4 g5 h3 a6 b3 g6 c4 a7 b2 g7 f3 Ra6+ Nc6 Na3 c3 Qd2 Ne7 g8R c2 e3 f6 Qg2 f2 Bb5 Rb8 a8B f1B Rb6 Qe8 Ba6 f5+ Kf4 Bd3 e4 Rh6 e5+ Kc7 e6 Ne5 Rd6 Nf3 Rb6 Rg6 d6+ Kd8 d7 Kc7 d5 Be2 Rb3 Kd6 d8B Bd1 Ba5 b6 B8b7 Bh6+ Qg5 Qf8 Rc3 Qg7 Rc7 Qh8 Rf8 Bd7 Rg8 Rd8 Rf8 Nc8 e7 Na7 e8R Nb5 Rg8 Be6 Rf7 Nc3 Ref8 Bc8 Ne2 Bd7 Rf1 h1N Ng1 Bc8 Ke3 Ke5 d6 Rd7 Kd3 Rd8 Qg2 Be3 Kc4 f4 Rf6 Bf5 d7 Ne2 Kb5 Nc3+ Kc6 Be2 Bd2 c1N Kc7 Nb3 Bc1 Nbd2 R8f7 Nh4 Rff8 f3 R6f7 f2 Rf6 Rb8 d8B Beg4 R6f7 Nhf3 Bf6+ Kf4 Bd4 Rd8 Bg7 Rdd6 Kb8 Rd4 Re1 f1Q Re2 Bf2 Re6 Be3 Ref6 Ke5 Re6+
N1Qn4/B4kB1/1p3BRn/r1pB2nN/3bq2n/bbR3N1/3p2r1/1B2qN1K b - - 0 1 illegal: No proof kernel
4bb1N/2BR1B2/1p1B3p/1Rn1Rp1n/2N1rn1q/n2r3k/qrB2R1B/6KQ b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 g4 Kf6 e4 Kg5 d4 c5 a4 f5 e5 c4 a5 b3 d6 b6 a6 b2 d7 c3 a7 h6 e6 c2 e7 h3 e8R Kh4 g5 h2 g6 f3 g7 Nf6 g8B Bd6 d5 Be5 d6 Nd5 Ra5 Qg5 d8B Nf4 d7 Bd6 Nd2 b1N Bd3 Na6 Nc4 Nc5 Ne2 Na3 Be7 Kh3 d8B Bd7 Bf7 Qg8 Rf1 h1Q Bc7 Rd8 a8R Bb5 Bb2 c1R Be5 Rc2 R8a7 Rb2 Bc2 Bd7 Bf8 Bc6 Re7 Be8 Rb5 Rh7 Re6 Rg7 Re7 Rg4 Rd7 Rh4 Raa5 Be7 Bed6 Rg4 Bg7 Bf8 Bge5 Rh4 Nc3 Rg4 Nd5 Rh4 Ne7 Rg4 Ke3 f2 Ng6 Qh2 Nh8 Qg5 Re1 Qh4 Re2 f1N+ Kf3 Ng3 Rf2 Ngh5 Qh1 Ng6 Ke2 Re4+ Kf1 Ngf4 Qf3+ Q2g3 Qd1 Qb3 Kg1 Qa2 Qd5 Ng6 Bh2 Ngf4 Qc6 Re3 Qh1 Rd3 Re7 Rd7 Re5 Re7 Ra8 Re6 Rd8 Re7 Rd7 Re6 Rd5 Re4 Re5
1kBRBq1N/N4p1p/p3N2r/RBqN2q1/1n5b/5n2/1rbBB1nn/1QK5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 d5 e5 fxe5 c6 Qd3 cxd5 Qd1 d4 Kd2 d5 c4 Kd7 e4 Kc7 g4 d3 b4 d4 g5 a3 c5 a2 c6 h3 e6 h2 e5 Be7 b5 Na6 g6 Bh4 g7 Kb8 b6 Nb4 e7 Nh6 g8N Ng4 e8B Bf5 Ne2 Qg5+ Nf4 a6 Rg1 h1Q b7 Nh2 e6 Qd5 e7 Qc5 Nc3 Ra7 Qb3 Bg6 Kd1 d2 Ne6 Bb1 Nd5 Bc2+ Ke2 d1N Bd2 Ra8 Qb1 Ne3 Rg4 Ng2 c7+ Ka7 c8B Kb8 Bb5 Ne1 e8B Nef3 Nh6 Rg8 Nf5 Rg6 Nfe7 Rh6 Ng6 Qf8 Rf4 d3+ Ke3 Ra7 Nh8 Ra8 Be2 Ra7 Qb3 Ra8 Rd1 a1Q Qb2 Qa3 Qb1 Ka7 b8N Qa5 Nd7 Rb8 Ne5 Ka8 Nc6 Rb6 Na7 Kb8 Qb3 Rb7 Ra1 Qc7 Ra5 Rb6 Bc1 d2 Qb1 Qce7 Nf6 Qgc5+ Rd4 Qd8 Nd5 d1N+ Kf4 Ne3 Bd2 Ba4 Rd3 Qg5+ Ke4 Ng2 Rd4 Nc6 Kd3 Bb3 Nf6 Bd1 Rd8 Bb3 Nd5 Ba4 Bc4 Bc2+ Kc3 Nb4 Kb2 Nc6+ Kc1 Rb2 Bcd3 Nb4 Bdb5
b3b3/3Rp3/q1B2n2/B1nBq1Q1/N1bp1r2/1BN1prQ1/1KB3nb/1BR3k1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 g4 Ke6 f4 Kd5 a4 b5 f5 h5 f6 b3 c3 b4 a5 d3 c4+ Kd4 g6 d5 c5 h4 f7 h3 g5 h2 a6 b2 c6 b3 g7 Nf6 g8B Qc7 a7 Nbd7 g6 Rh3 g7 Nc5 Qe2 Bd7 Qf3 Qe5 c7 Be8 Nc3 b1Q c8B b2 Na4 Qa2 Bf5 b1B+ Kd1 d2 Qg3 Rb8 a8B Bd3 Bc6 Bc4 Bd3 Rb4 Bc2 Qa3 Qg5 Rf3 Qg3 Ke3 Ne2 Qa2 Nec3 Qa3 Qg5+ Kf2 Bb2 Qa2 Rc1 Qa1 Re1 h1B Bb1 Qa2 Kc2 d1N Re3 Bg2 Rd3 Kg1 Rd2 Be2 Rd4 Qc4 Rd2 Qa6 Ba3 Rc4 Bb4 Bf1 Ba5 Ne3+ Kb2 Rd4 Bgh7 Rc4 g8B Bh6 Qg3 Bf4 f8Q Rd4 Qg5 Bh2 Qfg7 Rc4 Bg4 Bh1 Bc8+ Ng2 Bce6 e3 Bhc2 Rh4 Qg3 Rhf4 Rd4 Qc4 Q7g5 Qa6 Rc4 d4 Bed5 Rg4 Rb4 Re4 Rb7 Ref4 Nd1 Be2 Rd7 Bc4 Ndc3+ Rf1 Bb7 Be2 Bdb3 Bc4 Nd1 R1f2 Q5g4 Rf1 Qf5 R1f2 Ndc3+ Rf1 Qe1 Nh4 Qh5 Bc6 Qg3+ Ng2 Qhg5 B6d5 Bc8 Ba8 Bd5 Kh1 Bcb7 Kg1 Bd1 R1f3 Bbc6 Rf2+ Bdc2+ Rf1 Bd1 R1f3 Bdc2+
bq3NK1/1ppB3N/2R2r1R/1k4nn/BN1pb3/1r1rBQb1/2rB2B1/1q5N b - - 0 1 illegal: Other
N3N2K/pr1b2Rp/1QN3R1/bq3b2/2BBqN1q/1Bp1N3/4Bn2/1qr1n2k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 f6 g4 h3 b4 f3 g5 h2 d5 c3 b6 c4 g6 f2 b5 c2 b7 c3 b6 Kc5 d6 f5+ Ke5 f4 e4 f3 d7 Be7 g7 Kc6 Bc4 f1B Nh3 f2 Rg1 h1Q Be3 c1Q Nd2 Qa3 Bd4 Qa2 Nf4 Qh6 Rg6+ Nf6 g8B Na6 Qb1 Bh3 Nf1 Nc5 Ne3 f1Q Qb4 Qh1 Rag1 Qb1 Bb3 Bf5 Bgc4 Re8 b8N+ Kb7 R1g2 Q6h4 Na6 Kc6 b7 Qb6 Nc7 Rb8 Na8 Qb5 Rg7 Rf8 R2g6 Bd8 Be2 Ba5 Bec4 Rf7 d8N+ Kd7 Nde6 Kc6 Nec7 Bcd7 Ne8 Rf8 Ne6 Ng4+ Kf4 Qc2 e5 Qhb1 Nac7 Qa4 Rf7 Be4 Na8 Qg2 Be2 Bc2 Bbc4 Nd3+ Kf5 Qgh1 Qe7 Qg2 Qd8 Qab5 Bb3 Qhg3 Kg5 Q3h3 Re7 Rf1 Bc4 Ngf2+ Kf6 Rc1 Kg7 Qgf3 Kh8 Qh4 Reg7 Ne1 Bb3 Bf5 Nf4+ Qf6 e6 Qfd5 Nec7 Qh4 e7+ Qe6 e8B Kd6 Bb6 Ke5 Bf7 Ke4 Ne8 Qee5 Bfc4 Qee7 Bf1 Kf3 Bd4 Qe6 Qb6 Qee4 Ng4 Kg3 Ne3+ Kh2 Bfd3 Kh1 Be2 Rc8 b8N Rc7 Nc6 Rb7 Rg2 Nf3 R2g4 Ne1 R4g6
5Rb1/Kpn3Nr/B1Qr4/n5RB/1RR2r1n/k3N1b1/1pbppR2/1Bq1B3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 d5 Kd3 Kd7 a4 Kd6 c4 Kc5 f4 h5 g4 e5 g5 h3 a5 h2 g6 h4 f6 b3 g7 Kb4 f7 b2 c5 h3 a6 Qe8 f5 Qc6 a7 Qg6 c6 Qd6 c7 Nc6 f6 Be6 c8B Qe7 Nd2 Rh4 Ra5 Qc7 Nc4 Nge7 g8B Rf4 Nf3 Bg7 Rc5 Na5 Rg1 h1R f8R h2 Bh7 Bg8 Ne3 Ka3 Bg4 Rd8 a8R Rd6 f7 Bh8 Bh5 e4+ Ke2 Bf6 Rg5 Be5 Qc2 d3+ Kd2 d4 Rc4 Qc5 Nh4 Nd5 Nhf5 Nc7 Ng7 Qc6 Rb4 Qc4 Rac8 Qc3+ Kd1 d2 Ke2 Qc5 Bf5 d1B+ Kd2 Qc6 Ba6 d3 Qc4 Bc2 Qc5 Rd4 Kc3 Bd6 Bd2 Rd5 Be1 d2 Ng4 e3 Bh7 e2 Ne3 Rdf5 B7g6 Rf6 Be4 Rh6 Kd4 Rh7 Qb5 Rhf1 Qd5 h1N Qe6 Ng3 Qc4 Qd7 Qc6 Rf6 Bed3 R1f4+ Be4 Be5+ Kc5 Rd6 Kb6 Nf5 Ka7 Nh4 Bed3 Bb3 Bb1 Bc2 Rfe8 Qg4 f8R Qg1 Rff5 Qf1 Ref8 Qg1 Bg3 Qc1 Be1 Rg4 Rf2 Bg3 Rce8 Rf4 Ree4 Rd7 Red4 Rd6 Rdc4
1N2BRR1/nb3pR1/p1r3r1/2kN2B1/1q1p1bnp/1B2q3/RR1b1r2/QB5K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kf2 Ke7 g4 Kd6 Kg2 h5 e4 a3 b4 h4 c4 a6 e5+ Kc6 b5+ Kc5 b6 d5 g6 a2 b7 d3 g7 d2 e6 d4 e7 Nf6 g8B Qd7 e8B Qd6 g5 Qd5+ Nf3 Qe6 g6 Ra7 g7 Ng4 Nc3 Bd7 Rg1 Bc6 Bh7 Rg8 Kh1 Qe3 Nd5 Bd6 Ne5 f3 Bb1 f2 Bfd3 f1Q Bdc2 Qfe1 Bb3 Bc7 Qe2 d1R Qb2 Rd2 Nd7+ Kd6 Qc3 Rf2 Qb2 Qb4 c5+ Ke6 Rg2 Bf4 Bd2 Rh8 g8R Rh6 Rg3 Rg6 Rg1 Ba4 c6 Kd6 c7 Nc6 Nb8 Kc5 c8R Ra8 Rd8 Na7 Nc6 Rc8 b8R Bb5 Rb7 Rc7 Nb8 Bc6 Rb6 Bb7 Rg2 Rg5 Rbg6 Rc8 R6g7 Rc6 Qa3 Rgg6 Bc1 Rf3 Rb2 Rf2 Rh8 Qe5 Bd7 Bg3 Bg5 Qe3 Rhg8 Bf4 Rdf8 Ba8 Re2 Bb7 Be8 Qc3 Be4 Qe3 Rb1 a1B Qc1+ Kd6 Ra2 Bc3 Rbb2 Kc5 Qa1 Bd2 Bb1
N7/1KnB2n1/r3NpBN/3nNb2/R2pn1rR/p1k1B2n/B1N2p2/Q1b1q3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 b4 a5 g4 d6 c4 h3 b6 f6 g5 h2 b5 d3 c5 h4 c6 f3 g6 f2 b7 d2 g7 a4 b6 h3 c7 Nd7 b8N Ne7 g8N Qe8 b7 Nd5 Na3 Ne5 Nd7 Nf3 b8N Ra6 Nh6 Rg8 Nc2 Ng5+ Kd4 Rg6 e4 Rg8 Qe1 d1N e5 N1c3 Be3 Nb5+ Kc4 Bg7 Nb6 Bd7 c8B Nbc7 Nc6 a3 Rd1 Bf8 Rd4 Bg7 Na8 Qe7 Nf7 Bh6 Ne2 Kf5 e6 Qe8 Rd2 Ke4 e7 Bf5 Nf4 Rg7 Nce5 Rg6 Rg1 h1N Bd7 h2 Ne6 Nh3 Qb1 Ng3 Rh1 Nh5 Rd3 Bf4 Nh6 Ng7 Rb3 Rg5 Rb4 Rg4 Ra4 Bg5 Bc5 Bc1 Be3 Nb6+ Kb4 d5 Kc5+ d4 Kc6 Nbd5+ Kb7 Nc3 Rg1 h1N Bc4 Ng3 Ba2 N3d5 Re1 Nc3 Rh1 N3d5 Nc6 Kd3 Ne5+ Kc3 Rh2 Qf7 e8B Qe7 Bg6 Ne4 Rh1 Qc5 Rh2 Qc4 Rh1 Qf1 Rh2 Qe1 Rh1 Nhf4 Rh4 Nh3 Qa1+
2n2NK1/k1Bp1rB1/N2bB3/2npqr2/b1r4R/1p1RR1BQ/1b3p2/4RBb1 b - - 0 1 illegal: No proof kernel
N3Qb2/rpR4B/3pN3/Bpq4q/4n2B/BRRr2RK/2bbp2n/4Bkb1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g4 hxg4 b5 f5 b6 axb6 exf5 b5 c4 Kf7 f4 Kf6 Kf2 g5 Kg3 e5 h4 d3 a4 d2 h5 e4 h6 e3 c5 Qc7 a5 Qd6 h7 Qb6 c6 Ba3 c7 Ra7 a6 Bf8 Ra3 Ra8 a7 Qc6 Qe2 d1Q Nf3 Be7 Nc3 Qc5 Nd5+ Kg7 f6+ Kg6 f7 Kf5 f8B Ke4 f5 Nh6 f6 Na6 f7 d6 Nd4 Rg8 h8B Bf5 Bfg7 Bf8 c8R Bh7 Kh2 g3+ Kh3 g2 Rb3 g1B Nb6 Ng4 Ne6 Nh2 Ba3 Bg6 Qe1 Kf3 Rc7 Bc2 Bc3 Qdd5 Ba5 g4+ Kh4 g3 Bd3 Kg2 Bhc3 Rg5 Bh7 Rf5 Bcb4 Rf3 Qe2+ Bf2 Rc1 Qd1 Bc3 Kg1 Kh3 Be1 Bcb4 Bd2 Bc3 Re8 a8R g2+ Kh4 Rg3 Ra7 Rc8 Na8 Rd8 Qh5 Kf1 Bcb4 g1B Qe5 Bb1 Rcc3 Bc2 Qe4 e2 Qc6 Rd3 Qe8 Nb8 Ra6 Nd7 Rac6 Nf6 Ra6 Rd5 Kh3 Ne4 Rg3 Qa1 Rac6 Qh8 Bc3 Rd3 Bcb4 Bg7 f8B Rb8 Be7 Bf8 Bh4 Qhe5 Nb6 Ra8 Bc3 Ra7 Na8 Qh5 Bcb4 Bf4 Be1 Bfe3 Ng7 Bd2 Ne6 Qcg5 Rc4 Qc5 Rcc3
Br1NRK1n/1q1B4/k1BN2r1/n1pp4/b6N/Q3Npnp/pb1R3B/2N2b2 b - - 0 1 illegal: No proof kernel
3RBn1Q/R1p3rq/6k1/3R1R2/rBp3pB/1bN2pbb/2p1B1n1/n1N1RK2 b - - 0 1 illegal: No proof kernel
1nNr3B/npp3QB/p1q2bpR/1Rp1R1k1/4B2N/2rR1K2/6B1/1bn3Rr b - - 0 1 illegal: No proof kernel
1rnK2Nq/2np2B1/1B4N1/2R2q2/RR2Nr1n/B4Rq1/p3qNQ1/r1k5 b - - 0 1 illegal: No possible last move
2qRn3/1r1n1K2/B2q1B1b/q1BRb1N1/1rR1N2r/1nN5/3Nrk2/BrQ5 b - - 0 1 illegal: No possible last move
1rb1B1Q1/2NrR3/2nN2n1/BRb1q1BR/2q1q3/Nb1br1R1/8/1kqN2K1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 g4 Kf6 e4 Ke5 d3 Kd4 g5 c5 d6 f5 b6 h5 g6 b3 e5 f3 e6 h3 g7 b2 b7 h4 d7 c4 e7 c3 e8R c2 Ra5 h2 Na3 Kc3 d4 b1R d5 h3 d6 f4 Bg2 Ra7 Re4 Qf6 d8N Rb3 d7 Qe5 Bd2+ Kb2 Rb5 c1Q Nf7 Nc6 b8N Nge7 g8R Ng6 d8B Rd7 Nc2 Kb1 B8a5 Bc5+ Kf1 f2 Na6 Bb7 Ne2 Bc8 Rg7 Re8 Nd6 Rb4 Rg1 h1Q Nc7 h2 Re7 Rb3 Re3 Red8 Bd5 Qhe4 Rh3 h1B Rh5 Bf3 Rg2 Bg4 Rg1 Be6 Rg3 Bg8 Bf7 Rf8 Bdb4 Re3 Be8 Bb3 Bd2 Rg8 Rf3 Rf8 Kg2 f1B+ Kg1 Rg8 Rg3 f3 Qe1 Rf8 Qf2 Rh8 Qg2 f2+ Kh2 Kb2 Nc3 Bd3 Nd1+ Kb1 Kh1 f1Q+ Kh2 Re2 Bg5 Re3 Qg1 Rf8 Qg2 Qff4 Kg1 Qc4 Qd5 Qfe4 Qg8 Bb7 Bf7 Rb8 Be8 Bc8 Na3+
r2RQbr1/1KNnbn2/1BnNR3/2p1r3/R4B2/Nq6/3Nk1q1/1B1R1r1q b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 e4 Ke7 Ke2 Ke6 Ke3 Ke5 d4+ Ke6 b4 a5 g5 c5 g6 f5 b6 h5 b5 a4 b7 h4 g7 c3 b6 h3 e5 Kd5 e6 c2 e7 a3 e8N h2 Qe1 a2 Na3 Nd7 b8B Ne7 g8R Rh5 b7 Qb6 Ba7 Qb3+ Bd3 Nc6 Nf3 g1R b8N g2 Nd2 f4+ Kf3 Be7 Bb6 Re5 Nd6 Bf8 Rg4 Be7 Rb1 a1B Na6 Bb2 Ra1 Bf8 Rg6 Bc3 Bb2 c1N Bb1 Nd3 Bc1 Bb2 Re6 Rf1+ Kg4 f3 Ra2 f2 Kf3 g1R Qe3 Rg8 Ra1 Nd8 Nc7+ Kc6 Qe2 Nb4+ Kf4 Bc3 Qh5 Be7 Qe8 Nf7 Rg1 Rh5 Ke4 h1Q+ Nf3 Bd2 Rg4 Bh6 Bf4 Bhf8 Rg1 Rc1 Rd1 f1Q Ra2 Rc2 Ra1 Rf2 Ra2 Qfg1 Ra1 Rf1 Ra2 Qhh2 Nd2 Qhg2+ Nf3 Rg7 Nf5+ Bd6 Nc2 Q1h1 Ra4 Rg8 Na3 Rhg5 Qb8 Nde5 Qe8+ Kb7 d5 Bde7 d6 Rh5 d7 Rhg5 d8R Nd7 Nd6+ Kc6 Bg3 Re5+ Kf4 Rg1 Nd2 Rge1 Na6 Kd5 Nc7+ Kd4 Bh2 R5e4+ Kf5 Ke3 Bf4+ Ke2 Re5 Qc3 Ke6 Re3 Re4 Rf1 Re5 Nc6 Ree4 Na7 Re5 Re4 Kd5 Qcf3 Re6 Re5+ Kc4 Nc6 Kb5 Na7+ Ka6 Nc6+ Kb7 Qfh3 Ndb5 Qb3 Nd6
2Qq2bn/2B1qrB1/K1nq1RR1/n5n1/5N1p/N3R1n1/R3B1b1/2kNB1n1 b - - 0 1 legal: proof: g4 a5 e4 b5 h4 f5 d4 fxe4 b4 axb4 f4 c5 f5 cxd4 g5 Ra6 Nd2 Rf6 gxf6 g5 Nb1 g4 Be3 Bh6 Bc1 Bg5 hxg5 Kf8 Nf3 Kf7 Ng1 Ke8 Ke2 Kf7 c4 h5 a4 d5 a5 e5 c5 g3 c6 e3 Kd3 h4 a6 e4+ Kc2 e2 Kb3 e1Q a7 g2 a8N e3 c7 e2 Ra7 d3 Ra4 d4 Ba3 d2 Bb2 d3 Ra3 Nc6 Bd4 Nge7 Rh2 Bb7 c8R Rh7 Bf2 Ng6 Ra6 Nh8 Qc2 d1N Nb6 d2 Rh3 Nc3 Bc5 d1Q Bd6 Ne4 Ra2 Ng3 Bc7 Q1d6 Na4 Ba8 Nb2 Rg7 Nf3 g1N Nd1 Bb7 Nd4 Rh7 Kb2 b3 Na3 b4 Ne6 Rg7 Nf4 Ba8 Kb1 b2 Qc1 Rh7 Kc2 b1N Kb3 Nd2+ Ka4 b3 Kb5 b2 Ka6 b1B Qc5 Nb3 g6+ Ke8 g7 Kf7 g8R Nba5 Rg4 Qb4 Qc2 e1N Rg6 Nef3 Be2 Ng5 Rb8 Q6e7 Rb6 Qbd6 Qc3 Be4 Qc4+ Bd5 Qc3 Ke8 f7+ Kd7 f8B Bg8 f6 Rf7 Qc2 Qee8 Bg7 Qee7 Nd3 Ke6 Nf4+ Ke5 Qc1 Nf1 Re3+ Kd4 Qc2 Ng3 Qf5 Ne5 Qc8 Bg2 Bh6 Rh7 f7 Nec6 f8B Rf7 Bfg7+ Kc5 Nb5 Kb4 Bc3+ Kb3 Be1+ Qd3 Bg7 Qdd6 Ra3+ Kc2 Ra2+ Kc1 Rf6 Qd2 Na3 Q2d5 Rbb3 Qd4 Ree6 Qdd8 Rbe3 Q4d7 Rg6 Qdd6 Ref6
B2R4/1k2nB2/Nq2rrNK/3n4/1R1qq1q1/2Rp1b1R/1Qq3n1/1BnN2N1 b - - 0 1 legal: proof: g4 c5 f4 f5 gxf5 a5 f6 e6 d4 cxd4 b4 axb4 f5 h6 Bg5 Bd6 e3 Bf4 exf4 hxg5 Kd2 b5 c4 d5 a4 Kd7 h4 Kc7 f7 b3 f8R e5 f6 b2 f5 g4 c5 g5 h5 e4 c6 g3 h6 d3 Ke3 d2 h7 g2 a5 d4+ Kf2 b4 Kg3 b3 Kg4 e3 Kh5 e2 f7 e1N f6 g4 a6 g3 a7 Bb7 Kg6 Na6 Ra3 Nb4 Bc4 Nd5 Rh3 Nge7+ Kh6 d3 Nc3 b1Q Qe2 d1Q Qb2 Qg4 Nd1 Qe4 Ra4 Qd6 Rb4 Qc2 Rd8 Rf8 h8N Qd7 Ng6 Qdg4 Re8 Rc8 Rd8 Re8 f8N Rb8 Qa2 b2 f7 b1Q Nd7 Qbb2 f8R Qbd4 Nc5 Rc8 Nf3 g1Q Qb2 g2 Ba2 Qge3+ Rf4 g1N Bb1 Ne2 Ng1 Nc1 Rb3 Ng2 Rc3 Qb4 Na6+ Kb6 c7 Q3d4 Rc4 Ba8 Rc5 Kb7 Rc3 Rf8 Nf3 Rb8 Ng1 Rf6 c8B+ Kb6 Be6 Kb7 Rf8 Qbb6 Bf7 Rd8 Rh8 Rdd6 Rd8 Rde6 Rf5 Nb4 Rb5 Nbd5 Rb4 Qe1 Kh7 Nc7 Rd7 Kc8 Qa1 Bf3 Kh6 Qee4 Qb2 Kb7 Rd8 Ncd5 a8B+
1rn1N2R/1bpb1B2/2R5/2b1BNbB/n5n1/1Nq5/KR1Nb3/1BQn1k1q b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 h4 g5 Rh2 a5 Rh3 Ra6 Rh1 Rg6 Rh2 g4 Rh1 Rg5 hxg5 fxg3 b4 Ke7 d4 Ke6 Kd2 Kd5 Kc2 Ke4 Kb2 f5 b6 h5 d5 h4 d6 h3 g6 c3+ Ka3 c2 d7 h2 e3 f4 g7 a4 b7 g2 Nh3 g1N Bb2 g3 Qc1 Kf3 e4 g2 e5 Qh4 Ng5+ Kf2 d8N f3 e6 Bd7 e7 Nf6 g8B Nc6 e8B Ne2 b8R g1N Be5 Ne7 b5 Nc3 b6 Nd1 b7 Ng4 Ndf7 Ne2 Nd2 Nec3 Nh6 Ke1 Nf5 f2 Bg2+ f1B Ne6 Kf2 Bg6 Be2 B8f7 Rg8 Be4 Qh8 Kb4 a3 Kb3 a2 Ned4 Qh7 Rb1 a1Q Bd3 Qa5 Rb2 Na4 Ka2 Qc3 N4b3 Qh6 Ra8 Rh8 Ra6 Qh5 Rg1 h1B Rd6 Bd5 Rh1 Qh3 Rf6 Qf3 Rh6 Qh1 Bh5 Rg8 Rh8 B5c6 Nd6+ Kg2 b8N Bb7 Nc6 Kg1 Ncd4 Kg2 N2f3 Kf1 Qa1 c1B N4f5 Be3 Qc1 Bfh6 Bc2 Bc5 Bb1 Rb8 Ne8 Bg5 Rc6 Nc8 Nfd2+
b3k1Bn/R2b1pQ1/1b6/3Rb3/RnNnN1B1/q1r4B/p1b4N/3rNK1R b - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 h4 g5 b3 gxh4 Ba3 Qd7 Bc5 Qd8 Be3 d4 f4 exf4 c3 fxe3 cxd4 Bh3 d5 Bc8 d4 c5 g4 a5 b6 h5 d6 a4 b7 a3 e5 c4 g5 h3 b4 e2 b5 h4 g6 h2 b6 h3 e6 c3 e7 c2 g7 c1B d5 Rh7 Nc3 Ra6 Nf3 Bg4 Qd4 Rh4 Ne4 Nc6 b8R Nb4 b7 Bf4 Ra8 Ra7 b8N Be5 Na6 Rc7 Ra7 Qa8 Nac5 Bd7 Nd3 Rc3 Kf2 Rg4 Nde1 Rg1 Ra2 Nf6 g8B Nh5 Ra4 Nf4 Ra1 Ng6 Ra7 Bf4 Qg7 Be5 Bg2 Nh8 Bf1 Ba4 Bg2 Bc2 Ra4 Kd7 e8B+ Kd8 d7 Bc5+ Nd4 Ke7 d8N Bb6 Bd7 Qa5 Bc8 Ke8 d6 Qa7 Nc6 a2 Bg4 Qa6 Rb1 Qa7 Na5 Qa6 Nf3 Rd1 Nc4 e1N Kf1 Qa8 Rb3 Qa7 Rba3 Qe7 Rg1 h1B Nh2 Qf8 Ra7 Qe7 R3a4 Qf8 Nhf3 h2 B2h3 Qe7 Ne6 Qf8 Nf4 Qe7 Nd3 Bg2+ Ke2 h1B Nh2 Nf3 Ne1 Nd4+ Kf2 Bf3 Kf1 Qf8 Nf2 Bc6 Ne4 Bf3 Rh1 Bb5 Ng5 Ba8 d7+ Ke7 d8R+ Bd7 Rb8 Nf3 Rbb7 Ke8 Ne4 Nd4 R7a5 Qe7 Rd5 Qc5 Ra6 Qa5 Rba7 Qa3 Ra4
2r1Q3/1b1N1nN1/q1kN1q1N/1Bq2B1b/6B1/p2q1R1K/Bbp1R1R1/2n1r3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 h4 e5 b3 g5 hxg5 exf4 a4 b5 axb5 c3 Bb2 cxb2 Kf2 Kd7 e4 f5 d4 c5 g4 h5 Kg2 a5 e5 h4 d5 a4 d6 c4 e6+ Ke8 d7+ Ke7 g6 c3 g7 c2 g5 f3+ Kh3 a3 b6 f4 g6 f2 b7 f3 b4 Qb6 d8N Qd4 b5 Kd6 b6 Rh7 Nd2 b1B Ne4+ Kd5 Nf7 Ra4 Be2 Rc4 Ned6 Rc5 Rh2 f1Q+ Rg2 f2 Nf3 Qd3 Nh6 Kc6 Qe1 Na6 b8R Ba2 b7 Nb4 Rd1 Qa6 Rd2 Nd3 Ng5 Nc1 Bg4 Qfd3+ Qe3 f1Q e7 Bc4 Re2 Bf7 Ne6 Qf6 Ra8 Rh8 Ra7 Re5 b8N+ Kd5 e8B Bb7 Nd7 Kc6 Bf5 Be7 Ra8 Bd8 Ra7 Ba5 Ra8 Bc3 Rb8 Bb2 Bg4 Ne7 g8B Nf5 g7 Bh5 Bg6 Re4 B8f7 Rc8 g8B Re5 Ng7 Re4 Nb5 Nd6 Ba2 Nf7 B6f5 Ree8 Nd6 Re7 Kh2 h3 Kg3 h2 Kh3 Rc7 Rf8 h1Q+ Rh2 Qg1 Rhg2 Nh8 Bgc4 Rc8 Ref2 Re4 Rf3 Nf7 Re8 Re7 Qe2 Qc5 Qe6 Nd8 Qf7 Re1 Ree2 Rg1 Qg8 Nf7 Qe8 Re1 Bb5+
5n2/N5r1/1rpBq3/K2bbp1N/1N1BBq2/2n1R1rR/4n3/NnQ1Rk1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Ke6 Kd2 Kf5 Kc3 Kg4 e4+ Kg3 d5 Kf2 g4 h5 d6 a5 d7 f5 b6 a4 b7 h3 g5 h2 g6 c6 e5 a3 g7 h4 e6 a2 b5 f3 e7 h3 Kb4 c3 b6 c2 Bd2 c1N Bg2 Nf6 g8B Ne2 Nc3 Ra6 Qc1 Bg7 e8R Ne4 Nb5 Be5 Na7 Qc7 d8N N4c3 Bd5 Be6 Be4 Bd5 Ne6 Rg8 Ng7 Nd7 b8B Nf8 b7 Rb6+ Ka5 Qe7 Bg5 Qe6 Nh5 Rg7 Bf6 Rg3 Rb1 a1N Bd6 Nc2 b8N Na3 Na6 Rg7 Rb3 Nab1 Nb4 Rg3 Qb2 Ke1 Rd8 f2 Qc1+ Nd1 Re3 f1Q Bh8 Qf4 Nf3+ Kf2 Bf6 Ndc3 Nd2 Rg7 Rd1 h1R Nb3 h2 Na1 Rg1 Bh1 R1g3 Re8 R3g5 Rh3 Rg3 Bhg2 h1Q Re7 Qe1 Bh1 Na2 Re8 Kf1 Re7 Bb2 Bd4 Nac3 Bd3 Qc8 Re3 Qe6 Bde4 Na2 B4c5 Be5 Bd4 Nac3 Rxe1+
2nR3N/R3nN2/Q3N1nn/1R1b3K/7R/rn1Bp1r1/1rBpk3/1Bq1B2r b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g6 axb5 Bh6 d4 cxd4 g5 fxe4 f4 Bg7 f5 gxf5 g6 f4 Ne2 Bh6 Ng1 Bg5 hxg5 Qb6 Ra2 Qc7 Ra1 Qd8 Kf2 e5 b4 Ke7 c4 Ke6 c5 Kd5 c6 h5 c7 a5 g7 e3+ Kf3 a4 b6 a3 b5 e2 b7 Kc4 g6 d5 b6 e4+ Kf2 h4 Qe1 Kd3 Qb4 h3 Qd6 e3+ Kf3 a2 Qb4 h2 Na3 Ne7 g8N Nbc6 b8R Bb7 Kg4 f3 c8B f2 g7 Qc7 Bh3 f1R Nf3 e1N Nc2 Ra3 Ng5 Rf3 Bf5+ Ke2 Rd8 d3 Qa4 d4 Nf7 d2 Qa6+ d3 Ngh6 d1N g8B Nc8 Kh5 Ng2 Bd2 Nh4 Be1 Ng6 Bh7 Rg3 Bg2 Nf2 Bge4 Ba8 b7 Ng4 b8R Nc6e7 Rb5 Re8 Nh8 d2 N6f7 Nh6 Bc6 Rf8 Bce4 Bd5 Bd3+ Kf3 Nb4 Qc1 Nc6 Re8 Bb1 Ke2 Bfc2 Rf8 Nce5 Re8 Ng5 Rf8 Ne6 Rf4 Rf1 Rb4 Rf4 h1R+ Rh4 Rbb3 Nef7 Rb2 Be4 Rb4 Bbc2 Rb2 Bed3+ Kf3 Rb1 a1N Rb7 Nb3 Ra1 Ra5 Rb5 Raa2 Bb1 Ra3 Bdc2 Ke2 Ra2 Ne5 Bhd3+ Kf3 Rb6 N5g6 Qb7 Ra7 Ra5 Ra6 Rab5 Ra3 Ra6 Neg8 Ra7 Ng8e7 Be4+ Ke2 Qa6 Neg8 Bf5 Ng8e7 Bfd3+
1N1Q1K2/1qq5/1pp3rB/1b5k/1nB2R2/n1Rb1R1n/Rn2BB2/2qq2NN b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 h3 g5 Qc2 f5 Qb3 f4 Qd1 Ra5 h4 Rf5 gxf5 g4 Nc3 Be7 Nb1 Bg5 hxg5 Qd6 Bg2 Qd7 Bf1 Qd8 Kf2 Kf7 a4 h5 e4 c3 d4 c6 e5 h4 a5 c2 d5 b3 e6+ Kg7 e7 b2 e8R b6 f6+ Kg6 d6 h3 a6 h2 a7 Bb7 a8N Ba6 f7 Rh3 f8R Rh4 d7 Kh5 g6 Nf6 g7 Nd5 g8B Qc7 d8B Nd7 Nc3 b1N Re3 Bb5 Ra2 Ne5 Be2 Nb4 Bgc4 Na3 Ne4 Qb7 Bd2 c1Q Rc3 Rh3 Bh4 Rg3 Nc7 Ned3+ Kf1 f2 Na6 Rg2 Nb8 Nb2 Rf3 g3 Be3 Qc3 Qd8 Qcg7 Bg5 Qgd7 Bh6 Qbc7 Bd1 Qdc8 Ke2 Q8b7 Kd2 f1B+ Kc3 Bd3 Kd4 Qh7 Nf2 Qhc7 Ngh3 Rg1 Be2 Rg2 Rd1 h1Q Rc1 Qd1 Rc3 Rg1 Nh1 g2 Bf2 Qc1 Rg3+ f3 Rf4 Qd1 Qd6 Qc1 Ke5 Qd1 Kf6 Qc1 Qd8 Qd1 Bc5 Qc1 Bf1 f2 Rgf3 Qd1 Be2 f1Q Bf2 Qc1 Nd7 Qfd1 Kg7 Rf1 Ng5 g1N Kf8 Nh3 Nb8 Rg1 Bh4 Nf2 Nh3 Rg6 Ng1 Nh3 Bf2
Nn3Br1/n1n1B1q1/1nB1BR2/5NRp/2r2R1K/n5p1/2NQ2k1/nrn1R3 b - - 0 1 illegal: No possible last move
3RQb1K/B2q2n1/8/1p1RNp2/1N1RpqBb/1R2k1n1/3N4/r1N1nBbr b - - 0 1 legal: proof: g4 a5 b4 axb4 c4 d5 cxd5 h5 f3 hxg4 d4 gxf3 e4 b6 e5 Kd7 d6 Ke6 d5+ Kf5 e6 Bd7 exd7 Kf6 Kd2 Kg5 Ke3 e5 Ke4+ Kg4 h4 c5 a4 g5 a5 b3 a6 b2 a7 b5 h5 c4 h6 c3 h7 c2 Qe2 f6 Ra3 Kg3 Kf5 g4 Kg6 f5 Be3 c1B Nd2 b1Q Rb3 f2 Rh4 Na6 Kf7 Qg5 d8N Nc5 d7 Nf6 d6 Qd3 Nc6 Qf4 d8R Nh5 d7 Ng7 Nb4 Qd5+ Kf6 Nd3 Kg6 Ne1 Kf6 Rc8 a8B Qd3 Bd5 Ra8 Bf3 Ra1 Ba7 Bb2 Qe4 Bd4 Kf7 Bdc5 Qc6 Bce7 Qe6 Bg5 Qe8 Bf6 Bh3 f1N Ne2+ Kh2 Nc1 g3 Bh5 g2 B5g4 Kg3 Kg6 g1B Kf7 Rg8 h8N Bg5 Ng6 Rh8 Bg2 Rh7 Kg8 e4 Rh6 Bf6 Ne5 Bh4 Rd6 Rh5 Rd4 Kf2 B2h3 Ng3 Bf1 Rh7 Rc8 Ke3 d8R Bf6 Rc2 Rh1 Rc5 Bh4 Rcd5 Qc3 Bd3 Qc7 Kh8 Qd7 Bf1+
BN3b2/2pRR1B1/Q3rq2/R3pB1q/nrbN2nq/p5N1/k2RB1p1/4K3 b - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 a4 b5 axb5 h5 c4 dxc4 f5 g6 fxg6 Rh6 g5 Rh8 Qg4 hxg4 h4 Kd7 b4 Ke6 d4 Kd5 b6 a5 h5 e5 b7 g3 h6 a4 h7 c3 b5 e3 b6 e2 g7 Kc4 d5 Kb3 d6 g2 d7 c2 g6 Qe7 d8R Qd7 Nd2+ Kc3 Ne4+ Kb3 Bh6 Qd4 Nf3 Qg1 Nd4+ Kb2 Rd7 Qe3 Ng3 Na6 b8Q Qg5 b7 Nf6 g8B Nc5 g7 Qh5 Be6 Ra6 g8B Ng4 Bf5 Re6 Qa8 a3 b8N Bb7 Qa6 Na4 Bg7 Bd5 Rd1 Ka2 Rd2 Bc4 Bf7 Rg8 Re7 Rh8 Be8 Rg8 Bc6 Rh8 Ba8 Rg8 Rd1 c1Q h8R Qcg5 Rh7 Qf6 Rh4 Rb6 Rd2+ Rb2 Bh6 Rg7 Rd7 Re7 Rf7 Re8 Bg7 Re6 Rfe7 Nh6 Nc2 Rb4 Rhd4 Ng4 R4d5 Rb3 Ra5 Rb4 Nd4+ Nb2 Ne4 Ne3 Kf2 e1Q+ Kg1 Qg3 Be2 Qgh4 Ng3 Ng4 Bd1 Ne3 Kf2 Ng4+ Ke1 Rd6 Nc2 Re6 Be2 Na4 Nd4+
r1Qn1q1R/nN3R1q/pN1p2p1/5r2/n4BR1/pB1N4/N2n1p1B/K3B2k b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 a5 f3 a6 bxa6 Qd2 a5 Qd1 a4 h3 f5 h4 g6 h5 f4 h6 Bg7 hxg7 Ba6 Ra3 Bd3 Ra1 Bf5 gxf5 Qg5 Rh2 Qe7 Rh1 Qd8 Kd2 Ke7 c4 Kf6 Kc2 Ke5 b4 Ke4 Kb2 h5 f6 f2 c5 d3 f7 d2 f8B h4 b5 a6 c6 f3 b6 h3 c7 h2 c8N Qe7 b7 Ra7 Qc2+ Ke3 Nc3 Ra8 Nb6 Ra7 Nh3 Qe4 Bb4 Qd4 Nf4 Ne7 g8R Qf6 Rf8 Nc8 Nd3 Rh5 Rf7 Nc6 b8B a3+ Kb1 Ra8 Na2 Ke4 e3 d1N Be1 Nb2 Qc4+ Kf5 e4+ Kg4 e5+ Kg3 e6+ Qf4 e7 Rf5 e8N Na4 Be5 Nd8 Nd6 Na7 Nb7 d6 Be2 Kg2 Qc8 f1N Bd1 f2 Bb3 Qh6 Bcf4 Qf8 Rg1+ Kh3 Rg4 h1Q Bg3 Kg2 Bef4 Qhh8 Bh2+ Kh1 Kc2 Rh5 Rd1 Ra5 Kb1 Qh7 Ka1 Rf5 Rc1 Nd2 Rc5 Rf6 Rh5 Rf5 Rhh4 Qhg8 Rh8 Qgg7+ Ne5 Qh7 Nd3
b1RBn1k1/1rbrbR2/1BB3N1/bq2N2n/2R1K3/bN3n2/1BQ3b1/Rb5r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 Kf7 h4 a5 c4 g3 h5 g2 c5 f3 b6 g4 e5 a4 c6 g3 h6 a3 b5 f4 c7 a2 h7 f2 b7 f3 b6 Ra7 Qc2 Ba3 Nc3 Na6 b8B Nf6 b7 Bf5+ Ne4 Nh5 c8R Nc7 Be2 f1B Bg5 f2 Be7 Qe8 Qc3 Qb5+ Qc4 Ne8 Re1 a1B Bb4 Bc3 Nf3 g1B Be7 g2 Rc6 Bh2 Rd1 g1B Ra1 Bg2 Bd8 f1N Bbc7 Nd2 b8B Ba5 Bb6 Rb7 e6+ Kf8 B8a7 Bc7 Ne5 Nf3 e7+ Kg7 Rc5 Bf2 Rhf1 Bh4 Bd1 Bg5 Ba4 Bf6 Ke2 d3+ Ke3 d2 Qc2 d1B Rc4 Bg6 Nd2 d4+ Kf2 d3 Ke3 Bh4 Nb3 d2 Bd4 Be2 Bb2 d1R Bb6 Rd7 Rf2 Bed3 Rff1 Bde4 Rf2 Nd6 e8R Be7 Rf8 Ne8 Rff1 Rg8 h8N Bh7 Nhg6 Rh8 Rf7+ Kg8 Rfc1 Bd5 Nh4 Bhe4 Nhg6 Rh7 Qf2 Bb1 Qc2 Ra7 Kd3 Ba8+ Ke3 Rb7 Ke4 Qc5 Bc6 Qb5 Rd1 Nf4 Rd5 Rh1 Rdc5 Nh5 Bd5 Bb8 Rc8 Bc7 Bc6
b1Nr1qBr/K2N1RR1/Q2r1b2/4r1r1/R1kN1rB1/5nN1/1b1rnB1R/b7 b - - 0 1 illegal: No possible last move
n1K2n2/b1B1k3/5b2/n1n2n1R/2bqb1n1/BR1N1R1Q/B1N3Nb/rrB1R3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 g5 b4 a5 e4 d5 c4 g3+ Kf3 a4 b6 g4+ Ke2 d3+ Kd2 g2 Kc3 f3 Kd4 g3 Ke5 d4 c5 f2 h5 f4 h6 a3 b5 f3 h7 d2 b7 d3 c6 a2 c7 Nc6+ Kf4 Qd4 b8R Be7 b6 Bf6 b7 Ke7 Qe1 d1N Na3 d2 Nc2 Nc3 Nh3 g1B Qe3 d1N Bc4 f1B Nf2 g2 Nd3 f2 Rh5 Nb5 Qh3 Bf5 c8R Nc7 Rf8 Na5 Rb1 a1N Ba2 Ne3 Ba3+ Qc5 e5 N1b3 e6 Ng4 Re1 Be4 Bc1 Qd4 Rf7+ Kd6 e7 Nc5 Ba3 Kd7 e8N+ Ne7 Ng7 Kd6 Ne6 Bh2+ Qg3 Rc8 h8B g1B Bg7 Be2 Bh6 f1N Bg5 Nfe3 Bh6 Be5+ Kg5 Ra7 Qh3 Ng6 Rf3 Ke7 Nef4 Nf8 Ng2 Re8 Rh4 Nf5 Rh5 Nd7 Kg6 Na8 Bhc1 Bf1 Kg5 Bf6+ Kg6 Kd6 Kf7 Nf8 Be3 Rc8 Bec1 Rc6 Ke8 Rb6 Be3 Rb1 Bec1 Bg7 Kd8 Bf6+ Kc8 Ke7 Ndf4 Bc4 Nd3 Nc7 Ra8 Be3 b8B Ra6 Ra7 Bf2 Rb7 Ra7 Rb3 Na8 Bg3 Qd5 Bgf4 Nc6 Bab2 Na4 Rh1 Bc5 Bc7 Qd4 Rg1 Bb6 Re1 Nc5 Rc3 Ra3 Bb3 Raa1 Ba3 Na5 Ba2 Ba7 Rb3
2R3Nk/1rn1QnN1/3nq3/4b2n/n1RRB1N1/4B1BN/3r1Br1/1b1bbK1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 a5 e4 h5 b4 d5 g4 f5 e5 Kf7 g5 Kg7 g6 f3 e6 d3 c5 a4 b6 d2+ Kf2 h3 e7 h4 e8R f4 c6 a3 b5 a2 b7 h2 b6 h3 c7 d4 Be2 d3 Re6 Ra7 Bf1 Nh6 Rd6 Bf5 c8N Qe8 Na3 Na6 b8B Nf7 b7 Rg8 Rd7 Bb4 Rd4 Qe6 Nb5 Nc7 Ne7 Kh8 Qe1 d1B Bb2 d2 Rc1 a1B Nc8 Bb1 Bg2 Bc3 Kf1 f2 Ba3 Ba5 Rdc4 Be5 Ne7 Rd8 Ng8 Rd7 Ne2 Bb4 Rg1 h1N Nbd4 h2 Nf6 Ba5 Be4 Ng3+ Kg2 f1R Ng4 h1N Bc5 Rd6 Nf5 Nh5 Be3 Rd7 Ng7 f3+ Kh3 f2 Kg2 Bb4 Nf4 Rd5 Qe2 Re1 Nh3 f1N Rd4 Nfg3 Rcc4 Nf5 Bf2 Ra2 Ba7 N5d6 b8B Rb2 Qe3 Re2 Kf1 Rb5 Qg5 Rb7 Be3 Rg2 Qe7 Ba4 Bf2 d1N Be3 Rgd2 Rg3 Ba5 Bf2 Ra2 Rgc3 Nb2 Be3 Bd1 Rc2 Nce8 Rc8 Na4 R2c4 Rg2 Bb6 Be1 B6a7 Nb5 Bd6 Nc7 Bac5 Bh2 Bg3 Rad2 Bef2 Ng5 Qd6 Rbb2 Rd5 Nc3 Bh4 Ba2 Nf5 Rb1 Bce3 Be5 Rdd4 Na4 Bhg3 Rb7 Qc5 Bb1 g7+ Kg8 Qb4 Nf7 Qe7 Kh7 g8N Kh8 Ng7 Ned6 Bgf4 Re2 Bh2 Rd2 Bhg3
RR2bn2/1nbNn3/2krBr2/1r3bB1/7Q/3N1r2/B1q2n1N/KbnR1R1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 a5 c4 f5 Kc2 h5 Kb2 d3 g4 d4 c5 f3 b6 f4 b7 h3 b5 f2 e5 h2 g5 f3 g6 h4 g7 h3 b6 a4 e6+ Kc6 e7 a3+ Ka2 d2 e8R d3 Re7 Rh5 Re5 Ra6 Rf5 Qc7 Bg2 f1N Qe1 d1R Qe3 d2 Qf2 Ng3 Qe1 Ne7 g8B Nd7 b8R Ne2 Bf1 f2 Kb3 a2 Ba3 Nc1+ Kb2 Bg7+ Nc3 Be5 b7 Nf8 Bfc4 f1R Bce6 Rf3 Qh4 Bd7 Rf7 Be8 Rf5 Bg3 Nce2 Qc8 Bb4 Bc7 Nf4 Rdf1 Rf6 d1B Bd2 Bc2 Nd3 Bb1 Be3 Rd5 Bg5 Rd6 Rf5 Ra5 Rd5 Rf6 Rd4 R1f4 Nf3 R4f5 Rd1 h1N Rf4 Nf2 Nh2 Ra3 Ra4 Rf3 Raa8 Ra5 Bb3 Rb5 Be6 Bc2 Rb1 a1N Rf1 Ra5 Ba2 Nab3 Rd1 Rb5 Rf1 Na5+ Ka1 Ne2 Rbe1 Bb1 Rd1 Nc1 Ng4 h2 Bed5+ Kd7 c6+ Kd8 Be4 h1B Nh2 Bg2 Bed5 Bh3 Be6 Bf5 Bed5 Bb6 c7+ Kd7 Be4 Rg3 Bh1 Rf3 Nc5+ Kc6 Nd3 Qd7 c8B Qc7 Bce6 Qc8 Bg8 Bc7 Bgb3 Qe6 Bc4 Qe2 Be6 Qc2 Rc8 Kb6 b8N Nb7 Nd7+ Kc6 Rcb8
Q1b3q1/K2BR2r/nrqn1nr1/2q4k/6R1/r1R1qB2/nbN2N1B/N2N2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 g4 f5 c4 Kf7 e4 Kg6 b4 d5 b6 h5 b5 f3 c5 a4 e5 d3 Ke3 f2 Kd4 d2 c6 f4 g5 h3 c7 a3 b7 h2 e6 f3 b6 h4 e7 h3 Kc5 a2 Ba3 d4 Qa4 d1R Ba6 f1Q Be2 d3 Nc3 d2 Rc1 f2 Bf3 Bg7 e8R a1R Re7 Na6+ Kc6 Ra2 b8N Qe2 b7 f1Q Kb6 Nf6 Bd6 Ra3 Nd7 Rb8 Ka7 Rh7 Nc5 Qg8 Nb3 Qfe1 Qc6 Qe5 Na1 Q1e2 Qa4 Re1 Nd1 Q2e3+ Rc5 Re2 Qc6 Rg2 Qd5 Rg4 Qa2 Kh5 g6 Bh8 g7 Q5g5 Nf2 d1N Ne2 Qf5 Rg1 h1N Bh2 Ng3 Nc3 Nge4 Qd5 Nd6 Qa2 Nb2 Ncd1 Na4 Qd5 Nc3 Qc6 Qge6 g8R Na2 Rgg7 Qg8 Qe4 Be6 c8B Qe5 Bd7 Bf5 Bg3 h2 Bf4 h1Q Bh2 Kh6 Qd5 Rg6 Rg4 Kh5 Qc6 Rc8 b8N Q5d4 Qb7 Rc6 Qa8 Rb6 Rc3 Qc5 Nc6 Be6 Nb4 Qg2 Bb5 Bc8 Bd7 Qh1 Bb7 Qhc6 Rg1 Rgh6 R7g4 Rg6 Nbc2 Nfe4 Rb3 Bb2 Rd3 Nf6 Rc3 Qa4 Bd5 Qac6 Bf3
K3Rrk1/2b3n1/N1NRNB1b/R6r/1nq5/bb4nn/q3NrBB/Qr1R4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 Kf7 h4 a5 c4 g3 h5 g2 c5 f3 b6 g4 e5 a4 c6 g3 h6 a3 b5 f4 c7 a2 h7 f2 b7 f3 b6 Ba3 Qc2 Nf6 Ne2 g1B Bd2 g2 Nec3 Nh5 Be1 Bh2 Qd1 g1B Nd2 Be6 c8R Qh4 Na4 Ng7 Rd8 Na6 Bg2 f1N b8N f2 b7 Ng3 Nb3 f1R Nc6 Be3 b8N Bh6 Nc3 Rf2 Rd6 Rf8 h8B Kg8 Nc5 Qg4 Rb1 a1Q Rb5 Qa2 Ne2 R8f5 Rg1 Rh5 Qa1 Bf7 e6 Qf4 Nbd7 Rf8 e7 Be6 Bd2 Qf7 Bf4 Qc4+ Kd2 d3 Ke3 d2 e8R d1R Ndb8 Rb1 Rd1 Nb4 Ra5 Qa7 Na6 d4+ Kd2 d3 Ke3 Qc2 Kd4 d2 Be5 Bb3 Bf4 Qf7 Ne6 Qa2 Be5 Qf4+ Kc5 Qh4 Kb6 Qc4 Rc1 d1N Ka7 Rf6 Kb7 Nf2 Ka8 Nh3 Rcd1 Rf2 Bf4 N7f5 Bf6 Ng7 R6d5 Nh1 Bb8 Bc7 Rd6 Ng3 Ba7 Rf4 Bg1 Rf2 Bh2
n3RRkq/4r3/n2b4/QbNRbqp1/rB1n2N1/1B2B1R1/b1b2NKN/7r b - - 0 1 illegal: No possible last move, all moves rejected
n5K1/B2bQR2/nB1nb1pr/N3rrrR/4q3/3qk1bN/R1B1B2N/2R3r1 b - - 0 1 illegal: No possible last move, all moves rejected
1Q1NR2K/br4R1/1pB2r2/q1r1NN2/2BNnq1B/1n2R2b/n3bkb1/3R1b2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 f5 e4 b3 a4 b2 a5 h3 d6 h2 d7 f3 d3 f4 g5 f2 a6 f3 a7 h4 g6 h3 g7 Rh6 Qa4 Nc6+ Kf5 Nf6 g8R Nb4 e5 Kd4 e6 c5 e7 c4 e8N c3 Qb5 c2 Na3 b1R Nd6 Na2 Bg5 c1N Nac4 Ne4 Rg7 Nb3 Bh4 Qa5 Ne5 Ke3 d4 Rb2 Bc4 f1B d5 f2 Qb4 Be2 Ngf3 f1B Rd1 Rb8 a8B Rc2 Rhg1 h1B R1g3 h2 Nd4+ Kf2 Qb6 Re6 d8R Bhg2 Re8 h1Q Qc7 b6 Bc6 Rb7 Qb8 Qh2 Re3+ Qg3 Bf6 Qh2 Kg6 Qf4 N6f5 Bd6 Kh7 Rc1 Be7 Rf6 Kh8 Bc7 d6 Be6 B4b5 Rc5 d7 Bd6 d8N Bc7 Nh4 Beh3 Nhf5 Bd6 Bc4 Bc7 Qc8 Bb8 Qc7 Ba7 Qb8 Re6 Bg5 Rf6 Bh4+
Kn2BR1N/R1B1b1R1/2r1Nk1n/1rr2nr1/B5Q1/2rrN2b/B3p3/1r1Rq3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 d5 b4 h5 c4 a5 f4 e5 b6 e3 Kd3 a4 f5 h3 c5 e2 b7 e1R g5 a3 c6 a2 c7 h2 f6 h4 g6+ Ke6 b5 h3 b6 Qe7 f7 Rh6 g7 Ra3+ Nc3 Kf6 Bf4 Bd7 Qa4 Rb1 c8B Rb5 Nf3 Bg4 Rg1 h1R Bd7 h2 Nh4 Bh3 Rd1 a1R Be8 Rc1 Ng6 Rc2 Rg5 Rg1 Nh8 h1R Be2 Rab3 Bg4 Rc5 Bgd7 Rbb5 Rg2 Rg6 Rg5 Nh6 g8B Qe6 Rg2 Bd6 f8N Be7 Qb4 Rc1 Ra2 R1g5 Ra7 Rb1 Bc6 Rh2 Bgf7 Rc2 Bg8 Qg4 Ne6 Qh4 Qc4 Qe1 Qb4 Na6 b8R Rcc1 Rbb7 Nb8 Rc7 Rc2 b7 Rcc1 Na4 R1c4 Nc3 e4+ Kc2 e3 Kd3 e2 Bh2 Rb6 Ba4 Rbc6 Rd7 Rf5 Bc7 Rgg5 Rd2 Rb5 Nd1 R4c5 Ne3 Rf3 Qc4 Rfg3 Kc2 d3+ Kc3 Rf3 Kd4 Rfg3 Rd1 d2 Ng2 Rc3 Ne3 Bf8 Rg7 Be7 Rc1 d1N Bgf7 Nf2 Rd1 Nh1 Qb4 Nd7 b8R Ng3 Rc8 Nb8 Bd7 Rcc1 Rf8 R1c2 Bde8 Ngf5+ Kd3 d4 Ke4 d3 Qc4 R5b2 Qb4 R5c3 Kd5 d2 Qg4 Rb5+ Nc5 Rc4 Rc1 Re6 Ra5 Nd7 Ra7 Re5+ Kc6 d1R Ng2 Rdd4 Rd1 Rd3 Ne3 R2c3 Rh7 Nb6 Kb7 Nd7+ Ka8 Nb8 Rg7 Re6 Bb6 Red6 Bc7 Rc6 Bd5+ Nf7 Ne6 R4c5 Rfg8 N7h6 Bdb3 Bf1 Ba2 Bh3 Rf8+
3Kb3/brn2q2/N3rpn1/Qb2RrBk/N1b2n2/2qNqBR1/1BB5/N5R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 b4 a5 e4 f6 g4 Kf7 c4 Kg6 b6 h3 g5 h2 b7 a4 c5 h4 b5 a3 c6 a2 e5 h3 e6 f3 c7 f2 b6 Na6 b8R Qd7 b7 Ra7 e7 Rh5 e8N Qf7 Be2 f1B Qe1 Ne7 Bb2 Be6 c8N Nc7 Nd2 Bh6 Rd1 a1Q Ngf3 Bd7 Rg1 h1B Ra8 h2 b8B Rb7 Nb3 Qa7 Rc1 Bb5+ Rc4 Bhg2 Na1 h1Q Qa5 Qh3 Nb6 Qg3 Na4 Qe1 Kc2 d3+ Kb3 d2 Kb4 d1R+ Rc3 Qe3 Ra6 d4 Kc5 d3+ Kd6 Bc4 Kd7 d2 Kd8 Rb1 Rd3 d1N Re6 Nf2 Re5 Qc3 Ne1 Bc6 Bf3 Nh3 Ba7 Nf4 Bb6 Na8 Nc7 Be8 Na6 Nc7 Bc5 Rb6 Bca3 Re6 Bd6 Kg7 g6 Rf5 Bb4 Bg5 B4a3 Kh6 g7 Neg6 g8B Bh4 Bh7 Bf2 Bc1 Rb7 Bab2 Qe2 Bd2 Ba7 Rde3 Qf2 Nd3 Bcb5 Bg4 Qe2 Reg3 Qe3 Bf3 Be2 Ndc5 Bec4 Nd3 Nf8 Bdc1 N8g6 Re1 Nh4 Nf2 Qed4+ Rd5 Rfe5 Bh1 Kh5 Bc2 Nh3 Reg1 Ng6 Nd3 Rf5 Bg5 Qe3 Re5 Nhf4 Bf3+
3BrR1N/4brN1/2r3NN/1K3n1r/B2r3q/B3R3/nR1nR2p/q2br1Qk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 b7 f5 c3 d5+ Kb5 d3 e3 d2 g5 f3 g6 f2 c4 a4 c5 h3 c6 h2 c7 h4 g7 a3 Be2 f1N Bc4 h3 Ne2 Kf3 e4 Kg2 e5 a2 e6 d4 e7 f4 e8N d3 Bb3 f3 Ba3 f2 Nbc3 Rh6 Ba4 Rc6 Ne4 Qh4 Ng5 Be7 Nf7 Nh6 g8N Bg4 c8R Na6 b8B Nf5 Ng7 Bh5 Qe1 d1R Nh8 Nd2 Bc7 f1R Rf8 Re8 Bd8 Rf2 Rf1 h1R Nh6 h2 Rb1 a1Q Rb3 Rg1 Rb2 Kh1 Nf4 Bg4 Qe3 Re1 Nfg6 Bd1 Qa7 Rf3 Rf2 Rg5 Re2 Rh5 Rb3 Nb1 Qc5 d2 Rbe3 Rff1 Ka5 Rf4 b5 Nb4 b6 Na2 b7 Ng3 b8R Bb3 Ne5 d1R Neg6 Rf7 Qe5 Rd4 Qg5 Bd1 Rbb2 Nf5 Kb5 Nd2 Qg1+
1q1krBKN/2bb4/3N1R1r/4RB1r/1n1B1n1b/bN3b1R/1Q1r1p2/2qR1N2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 c4 f5 b4 d5 e4 g5 h4 a4 b6 f3 Kg3 d3 b7 d2 e5 d4 c5 d3 e6 a3 b5 a2 h5 Na6 b8B Ne7 h6 Bd7 h7 Ng6 c6 Ba3 b6 Nb4 Qe2 d1R e7 d2 c7 Ra5 c8N f4+ Kf2 Re1 b7 d1R Qb2 Rc5 Ne2 g3+ Kg1 g2 Kh2 g4 Nd4 Re6 Ba7 g3+ Kh3 g1B Kg4 g2 b8R f2 Bd3 f1B Rb6 f3 Nd2 f2 Rh3 Bh2 N4b3 Rh5 Bf5 Bc7 Rb1 Rg8 h8N g1B Rd6 a1Q Bd4 Bg2 Nf1 Bh2 Bh6 Rd2 Rd1 Nf4+ Bhg7 Reh6 Rf6 Rh4+ Kg5 Bg3 Nc1 Bf3 Nb3 Be6 Nd6+ Kd7 e8R Qb8 Rg6 Qc1 Kf6 R4h5 Re7+ Kc6 Re8 Bc8 Kf7 Bh4 Ree6 Kd7 Re5+ Kd8 Rf6 Re8 Bf8 Bd7 Kg8
1qQn1B2/N4n2/6Rq/BNr3R1/1q1NB1K1/kp4R1/1qbb3B/1nn2rRn b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 g4 Kc5 a4 f5 e4 h5 e5 b5 d6 b3 d4+ Kb4 d7 c5 e6 c4 g5 c3 g6 c2 g7 b2 e7 h3 e8R h2 a5 h4 a6 h3 a7 Rh5 d5 Nc6 d6 Nh6 g8N Nf7 Qd3 Bh6 Be3 c1N Nc3 b1N Ra3 Ba6 Qd1 Qb8 Ne7 Ncd8 Nge2 Bc8 Rg1 h1N Qd3 h2 Bg2 Bg5 Ra6 Kb3 Nc6 b4 Rb6 Ka3 Ned4 b3 Re5 Ba6 Qc2 Bd3 Bf2 Bh6 Bg3 Bg5 Qe2 Bc2 Qc4 Bh6 Bf1 Bg5 Bd3 Bh6 Be4 Rg5 Kg2 f3+ Kh3 f4 Rc5 Rf5 Kg4 f2 Re5 Rh5 Rg5 f1Q Qe6 f3 Ncb5+ Ka4 Be5 f2 Bg7 Qc4 Bf8 f1Q Rg3 Nb7 d8B Qb4 d7 Qf2 Bc7 Qf6 d8B Qh8 Bf6 Nbd8 Bfe5 Qf6 Qc8 Qf2 Rg7 Bd2 Bf4 Re5 Rg5 Rc5 Rg1 Ng3 B4d6 h1Q Be5 Qh7 Bf4 Nh1 Bh2 Qh6 Rg3 Qb7 Rg1 Rb8 a8R+ Qa7 Rg3 Rb7 Rb8 Qa8 Rg1 Ra7 R8b7 Qb8 Rg3 Ra5 Nca7 Ra6 Rbg6 Rf6 Ba5 Qg2 Rb6 Rf1 Rbf6 Qf2 Rff3 Qe2 Rg1 Qf2 Nc7 Ka3 Rfg3 Qf6 Nf3 Qa1 Nd4 Qb2 Ncb5+
2bNRbR1/3qN1bB/B2p3n/B5r1/n1RN2kN/1r5q/rQbbr3/4R1K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Ke6 e4 a5 c4 f5 b4 g5 e5 d3 b6 a4 c5 a3 b7 g3+ Kg2 g4 b5 d6 c6 d2 c7 a2 h5 Qd7 h6 Na6 b8R Nc5 b6 Na4 h7 Nh6 Ne2 f3+ Kg1 g2 b7 f4 Rh4 Kf5 Qb3 d1B e6 Bc2 e7 Ra5 e8R f2+ Kh2 g1R Nd4+ Kg5 Ba6 f1Q Nd2 f3 Qb2 f2 Ra8 Rg3 b8N Rg8 h8N Rb3 Nf7+ Kf4 Nd8 Rgg5 Rb1 a1B Nbc6 Rae5 Ne7 Re2 Qa3 Bc3 N2f3+ Bd2 Qb2 Qd1 Rh3 g3+ Kg2 Kg4 Nh4 Qe1 Bd3 Qd1 Bh7 Qe1 Rh1 Qd1 Rg1 f1R+ Kh1 Rff3 Re1 g2+ Kg1 Ra3 Rb8 Ra2 Rb4 Rb3 Rc4 Ree5 Ra1 Qf3 Rb1 Qh3 Ra1 Bf4 Bd2 Re2 Ba5 Bc1 Rf1 Bd2 Rae1 Qd3 Rf6 Q3f5 Rg6 Qfe6 Kh2 g1B+ Kh1 Bh2 Rg8 Be5 Kg1 Qf5 Nec6 Beg7 Ne7 Ba6 c8B Qf3 Bb7 Qh3 Bc6 Bb7 Bb5 Bc8 Ba6
1rB5/bp1R1rqR/NBB1nRNn/N1r3q1/n1bkB3/2n2Q1R/5Kn1/2r5 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 a4 Kf6 g4 h5 e4 c5 d6 c4 d7 b3 d5 Ke5 a5 f5 d6 b2 g5 c3 g6 f3 a6 h3 g7 c2 a7 f2+ Ke2 f4 Na3 b1N Rh2 h4 Be3 c1N+ Kf3 Qg5 d8N Ne2 d7 Nec3 Ba6 f1N Bb6 Rh5 Ne6 Bc5 d8R Nc6 Ne2 Rb8 a8R Ne3 Nc7 Ng2 Bd3 Na4 Ra6 Nbc3 Rd7 Nh6 g8B Nd4+ Kf2 f3 Be6 Qg7 Rh1 h2 Nf4 h3 Ra2 Rf5 Rd2 Qg5 Rh7 Bd7 Qf1 Bb5 Bc8 Bc4 Qe2 Rf7 Qe3 Ne6 Ng6+ Kd6 e5+ Kc6 Rb1 h1R Rb3 h2 Bb1 Rg1 Rd7 h1Q Bc2 Rc1 Be4+ Bd5 Nc4 Bd4 Ba5+ Kc5 Rad6 Qh3 Ra3 Qhg4 Bb6+ Kb4 Na5 Bc4 Na6+ Kb5 Bd8 Ba7 Bb6 Rf5 Nf4 Qg7 Ng6 Qg5 Rc6 Nf8 e6 Rc5 e7 Ne6 e8B Be2 Nb3 Kc4 Qf4 Bd3 Rdc7 Bf1 Na5+ Kd4 Qf8 Bc4 Bed7 Nd8 Rf6 Ne6 Bdc6 Qf5 Kg3 f2 Rd7+ Qd5 Rb3 f1R Ra3 Rh1 Kf2 Rh4 Rf3 Rf4 Rb3 Rf7 Rf6 Nb5 Rh3 Nbc3 Qd6 Rd1 Qf4 Rc1 Re7 Qf5 Qf3 Qg5 Rd7+
1rq3nR/R1Q3b1/3BBNb1/1N1R1q1B/qnNr2p1/4nRb1/8/k2qB1bK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 e4 Kb4 c4 d5 e5 a5 b3 f5 h5 g5 h6 g3 c5 a4 e6 f3+ Kh3 a3 h7 a2 e7 g2 Kh2 f2 e8N f4 c6 f3 c7 d3 b6 d4 b7 d2 Be2 f1Q Nc3 d3 Nf6 f2 Bh5 g4 Nf3 Na6 b8B Bd6+ Ne5 Bf5 c8B Bg6 Qc2 d1Q Nb5 d2 Be6 Qc8 Qc7 Qc2 Bb2 d1Q Bd4 Qfc4 Rf1 g1B+ Kh1 Qf5 Bda7 Qcc2 Nc4 Bg3 Be3 Ra7 Bg5 Rb7 Bh4 Rb6 Rb1 Rd6 Ra1 Qde2 Rad1 a1B Rd5 Bd4 Ra1 f1N Ra3 Ne3 Ra5 B3h2 Be1+ Bc3 Ra1 Qed1 Ra3 Bg3 Ra1 Nh6 Ra2 Re8 h8R Ng8 Ra5 Nc5 Ra7 Na6 Qc6 Rd7 Bf4 Qa2 Qc7 Qa4 Bd6+ Nc5 Nd4 Qda1 Be5 Na6 Rc5 Nf1 Nh7 Qd1 Ra5 Rd5 Rc5 Qb7 Bd6 Bd2 Ra5+ Kc3 b4 Ra8 b5 Qc8 Nc6 Kb3 b6 Ka2 b7 Bh6 b8R Ka1 Rb3 Nb4 Nd4 Rb8 Rf3 Ne3 Nf6 Bf8 Rc5 Bg7 Nb5 Rd4 Rd5
2nnbR2/q1q2BB1/4N1n1/1rbn1K2/Bp1q1NN1/1Bb5/1R2Q2r/2kR1qN1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 h5 a4 b5 a5 c5 g5 f5+ Ke5 f3 a6 f2 a7 f4 g6 b3 g7 f3 d6 b4 d5 b2 d7 h3 d6 h4 Qe1 Kb3 e4 Kc2 Rh2 c4 Bd2 c3 Bb5 f1Q Qf2 Qd3 Qc5 f2 Qc6 f1Q Qc7 Ne7 g8N Nbc6+ Ke6 Ng6 e5 Rb8 a8B Qd4 Rh1 h2 Be3 h3 Ra2 Rh6 Qb7 Qc7 Nf6 Qa7 Bf2 Nd8+ Kf5 Kc1 e6 c2 Nc3 b1N Ncd5 Nc3 Nf4 Nd5 e7 Qfc4 e8B Qcd4 Bc4 Bg7 Qc6 Rb5 Bf7 Bb7 Qa6 Bc6 Rb2 Bf8 Be1 Rh4 Nf3 Be7 Rf1 h1N Ng1 h2 Bb3 Nf2 Ng4 h1Q Ba4 Qf3 Bc3+ Qfd1 Bb7 Ne4 Rf2 Qf1 Rd2 Ra5 Qe2 Rh2 Bb3 Ba4 Bc6 Rb5 Rd3 Nd2 Rf3 Nc4 Rd3 Ncb6 Rd2 Qe3 Bg7 Nc8 Rd3 Qed4 Rd2 Nb7 d8R Bf6 Rg8 Nd8 d7 Be7 Rf8 Bc5 Ra2 Kb1 Rd3 c1B Rc2 Be3 Rb2+ Kc1 Rdd2 Bf2 Rd3 Bh4 Rdd2 Be1 Rd3 Nb7 d8N Bc3 Ne6 Nd8 Rdd2 Ra5 Ba8 Be8 Bc6 Rb5 Bd7 Rb6 Bda4 Rb5 Rd1+
1nn1B3/2B4R/Bn1bR1N1/1bk5/prb1N1Qq/5n1r/3RqBK1/Nb2q1N1 b - - 0 1 illegal: No possible last move
B6n/2N2k2/r3RBnn/R3pbN1/bRQ1N1nq/4r2b/K4bBr/B2q1N2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 e3+ Kc2 e2 Kb3 e1N b6 d3 b7 a4+ Ka2 d2 c5 d4 c6 h3 c7 h2 g5 d3 b5 h4 g6 h3 g7 a3 b6 Nf3 f5 Nc6 b8R Nh6 g8N Ng5 b7 Ra6 f6 Ngf7 Qe2 d1Q Bg2 d2 Bb2 Bf5 c8B Ne7 Qc4 Ng6 Nf3 Bc5 Ng5 Bf2 Bd7+ Kf8 Bdc6 Rh7 Bce4 Nfh8 f7 Kg7 Rg1 h1B Nf6 h2 Bef3 Kf8 Nfe4 Ke7 f8B+ Ke8 Bh3 Bg2 Be7 h1N Bf6 Bf1 Rg4 Kf8 Bhg2 Ke8 Ne6 Kf7 Bd4 Qe7 Re8 Qd8 b8N Qe7 Bg7 Qh4 Bf6 Be1 Rf4 Nf2 Bc3 Nfg4 Bd4 Bf2 Bb2 Rb6 Na6 Rb3 Nac7 Re3 Bd4 Qa4 Bc3 d1B Nbd2 Qc2+ Bb2 Qc1 Bd4 Ba4 Bb2 Qd1 Re7+ Kg8 N6g5+ Kf8 Re6 Kg8 Bh1 Bh3 Nf1 Kf8 Bfg2 Kg8 Rc1 Kf8 Ba1 Kg8 Kb1 a2+ Kb2 Kf8 Rc3 Kg8 Rb3 Kf8 Rb5 Kg8 Ra5 Kf8 Nf3 Kf7 Nd6+ Kg8 Ra7 Bd7 Qb5 Qh5 Ng5 N6f7 Bb7 Bg2 Ba8 Qh3 Qb3 Rh5 Qd3 Nfh6 Rb4 Qg3 Qc3 Rh2 Qc4 Bh3 Bhg2 Qh4 Nde4 Bc6 Qd3 Be8 Ka3 Bb5 Bc3 a1R+ Kb2 Ra5 Qc4 Ba4 Ka2 Kf8 Ba1 Kg8 Rab7 Ra6 R7b5 Kf8 Ra5 Kg8 Nh7 Kf7 Nhg5+
6rq/N1Rb1r1p/2BRn3/3Knb2/3nN2N/2R2Qr1/r1n2Bb1/BkbR3N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf3 Kf5 b4 a5 c4 h3 g3 h2 e3 a4 b6 d3 c5 d2 b5 d4 c6 d3 b7 a3 c7 a2 b6 Nc6 b8B Bh6 b7 Bd7 c8R Nf6 Ba7 Nd5 b8N Nc7 Nc3 Ne6 Rc7 Rg8 Bb2 f6 Qe2 d1N Ne4 d2 Nf2 Nc3 Bg2 d1B Rc1 Nb5 Rc3 a1N g4+ Ke5 e4 f5 g5 Nc2 Be3 Ra2 g6 Qf6 Bc5 Qh8 g7 Bg5 Ba1 Bh6 Be7 Kd4 Bh4 Bg5 e5 Bh6 Ngh3 Bg5 Rg1 h1R Ne4 Rh2 Bh1 Rg2 Nhf2 Rg4 Bg2 Bh6 Nh1 Rg3+ Kf2 Bg5 Qf3 Be2 Rd1+ Bd3 Qe2 f3 Qf1 Nf4 e6 Ne5 e7 Ne6 e8R Bc1 Rd8 f4 Nc6+ Kd5 Na7 Kd4 Kg1 f2+ Kh2 f3 Qe2 Re8 g8N f1B Ne7 f2 Ng6 Rg8 Bf3 Bh3 Bg2 f1R Qf3 Rg4 Be1 Rg3 Nh4 Rf2 Qg4 Rf7 Bf2+ Kd5 Qf3 Nbd4 Rb8 Bf1 Rb6 Bf5 Rcb3 Nc5 Rd6+ Kc4 Rc3+ Kb4 Kg1 Nce6 Kh2 Bc4 Kg1 Bb3 Kf1 Ka3 Kg1 Rb2 Kf1 Ka2 Kg1 Kb1 Kf1 Ndc6 Ke2 Ra2 Qf4 Bh3 Ng5 Bd5 Qf6 Nf3 Kd3 Be4+ Kc4 Nfd4 Qf4 Bef5 Qe3 N6b4 Bc6 Nd3 Kd5 Ne5 Qf3 Bg2 Ne4
n2b1K2/1b4N1/2R1bk2/1n1p1N1Q/2rB4/1R1N1qnr/Br1pRR2/B1N1n1n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 f5 Kc4 a5 Kc5 d5 e4 h5 g4 f3 c4 d3 b4 h3 g5 a4 e5 h2 g6 a3 b6 d2 g7 f4 b5 a2 b7 h4 b6 h3 e6 f2 Qh5 f3 Ne2 Nf6 Nf4 Nc6 b8B Na7 b7 Ne8 Bb2 Nb5 B8e5 Ra4 b8R Bb7 Nd3 Nec7 Bbd4 Na8 Nc3 Qa5 Rc1 a1N g8R Nc2 Ne2 Qc3 Rg2 Ne1 Rc2 Ra2 Nec1 Rb2 Be2 f1R Rf2 Rh6 Rg1 h1N Rgg2 h2 Bd1 Nac7 Re2 Qb3 Rgf2 Ng3 Rc3 h1B Bc2 Rg1 Bb1 Bg2 Ba2 Na8 Rc8 Bf1 Rc6 Bh3 Bg7 Qd1 Rb3 Rh1 Bh8 Rf6 Bg7 Rf4 Bge5 Bg4 Bh8 Rh3 Bhg7 Kd8+ e7+ Kd7 Bh8 Be6 Bhf6 Bh6 e8N Bg5 Bfe5 Bd8 Ng7 Rb1 Ba1 Ke7 Bec3 Rb2 Bd4 Nc3 Qh8 Kf7 Kd6 Rg4 c5 Nb5+ Ke5 Ke7 Qh5 Rf4 Rc8 Rg4 c6 Rgh4 c7 Rg4 Re3 Ne2 Re4 Ng1 Ree2 Bg8 Kf5+ Re4 Kg6 Be6 Rg2 f2 Rh2 f1N Rhf2 Bd7 Kh7 Ng3 Kg8 Kd6 Kf8 Be6 Rb8 Rg4 c8N+ Kd7 Ne7 Kd6 Re4 Qf3+ Nef5+ Kd7 Ree2 Rgh4 Be3 Rc4 Rc8 Bf7 Ne8 Ke6 Neg7+ Kf6 Rc6+ Be6 Bd4+
7B/1n1b1K2/Rrp1R3/1Q2q2N/2rR1nbB/rNrN4/Bk2Bp2/bn1rR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 h5 d4 a5 g4 f5 d5 f3 d6 c6 b6 h3 d7 f4 Ke6 a4 b3 f2 b7 c3 e5 c2 g5 a3 g6 h2 g7 h4 Qd3 h3 Qf3 a2 Qe3 f3 Ne2 Ra6 Nd2 Rb6 Qd3 Qc7 Ng3 Nf6 g8B Bg7 Kf7 Nh5 e6 Nf4 e7 Na6 b8B Nc5 d8R Nb7 Bb2 c1R Nh5 Qe5 e8R Rc4 Re6 Bd7 Be2 f1N Bd4 Ka3 b4+ Rc3 b5 f2 Nb3 Nd2 Rhe1 h1B Bd6+ Kb2 Be7 h2 Bh4 Bf3 Qc4 Ra6 b6 h1R Qb4 Bg4 Qb5 Nc5 b7 Rb6 b8N Nb7 Na6 Nb1 Nac5 Rh3 Ra8 Rd3 Ra4 Rd1 Bh7 Rd8 Bg8 Ra8 Rb4 Ra3 Ra4 Qc7 Bdf6 Qe5 Ra6 Rd4 Rd1 Rdc4 Rd4 Nd2 Re1 a1R Qa5 Rd1 Qb5 Bh6 Bg7 Nb1 Bh8 Bg7 Nd3+ Ka2 Rf6 Qb8 Rd5 Rd4 Nbc5 Rc2 Ke7 Rb4 Rh6 Ba1 Rd4+ Rb3 Bd5 Qe5+ Kf7 Rcc1 Re6 Rc2 Nc1+ Kb2 Bdc4 Rb4 Ba2 Rcc3 N5b3 Rbc4 Nd3+
BRB4N/n5R1/qNnK1kr1/2p5/b2Br1qR/qqRq1p2/1Qn2NN1/6b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 c5 Ke4 a5 Ke5 h5 b4 f5 g4 f3 d4 f2 e4 c3 d5 c2 g5 a4 b6 a3 b7 h3 b5 a2 d6+ Kf7 b6 h2 g6+ Kg7 d7 h4 Ne2 f4 Nd2 h3 Bg2 Qh4 d8N f1Q Nf7 Rh6 Nh8 Ne7 Kd6 Ra4 e5 Qg4 e6 Nbc6 b8R Re4 b7 Kf6 g7 Bd7 g8R Rg6 Rg7 Na7 Qe1 Bc6 Qf2 Ba4 Rb1 a1N Rb3 Qd1 Rc3 Nec6+ e7 f3 Nf4 Qe2 Bf1 Qa6 Ng2 Bb5 Bc4 Ba4 Bd5 Qd3 Kc7 Qa6 e8B Be7 Be6 Bd6+ Kd7 Bf4 Bf7 Be3 Kd6 Bd4 Bc8 Be3 Qe2 Bg1 Bd5 Qd3 Nf1 Qa6 Be3 c1Q Ng3 Qa3 Qb2 Qd3 Ne2 Qa6 Nc1 Nc2 Nd3 Bf2 Rd1 Bg1 Nf2 h1Q Rd4 h2 Ra8 Qb4 b8N Qb3 Nd7+ Kf5+ Kc7 Qd3 Nb6+ Kf6 Kd6 Qa6 Nh4 Qhg2 Rb4 h1Q Rb8 Qgf1 Ng2 Qa1 Rd4 Qaa3 Rdc4 Qh7 Rd4 N6b4 Ba8 Nbc6 Rd5 Qg8 Rh5 Qgc4 Rh4 Qd3+ Bd4+
2bnK3/rN1rnR1R/n1b2bbp/Q2BBB1q/8/b2q1p1R/2R4N/4NN1k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 b4 f6 g4 d3 c4 d6 c5 f3 b6 f2 g5 h6 g6 a4 g7 a3 b5 a2 b7 d2 b6 h3 c6 h2 c7 Ne7 g8N Ra7 Bg2 f1B Bb2 Rh7 Qa4 d1B Nd2 Bb3 Qa5 Na6 b8R Ba4 b7 Bb5 Be5 Nc6 Ngf3 Rd7 Rc1 a1B Ne1 d5+ Kf4 d4 e4 d3 Rc2 f5 Nf6 Bd6 Ng4 Ba3 Bf3 Bh3 Nf1 d2 Ra8 d1N b8R Nc3 Rb7 Rh7 Rab8 Qd3 Ra8 Nd8 Bg2 Bcd7 c8B Bc6 Rc7 Rf7 Rb8 B1b2 Rbb7 Rh7 Rg1 h1Q Ngh2 Re7 Bf3 Bg4 Rg3 Bh5 Rh3 Rf7 Bd4 Bg6 e5 Be7 Be4 Bba3 Bg2 Bf6 Bd5+ Ke7 e6 Kd6 e7 Rh7 Bf3 Ke6 e8N Nd5+ Kg3 f4+ Kg4 Rg7 Be5 Ne7 Be4 f3 Nd6 Bf5+ Kh5 Rf7 Rb8 Rg7 Bb7 Bc8 Ba8 Rf7 Rb4 Bh7 Nb7 Rg7 Bd5+ Kf5 Rg4 Rf7 Rg8 Rg7 Be6+ Ke4 Rf8 Bf5 Rf7 Rh7 Nd2+ Ke3 Bd7 Bfe4 Bf5 Kf2 Ndf1+ Kg1 Nd6 Bb5 Bd5 Bc6 Nb7 Qg2 Rd7 Kh1 Rc3 Qb2 Rc2 Qbb5 Rc7 Ng8 Kg6 Qc5 Rf8 Rd7 Rf7 Ne7+ Kh7 Bh4 Kg7 Bf6+ Kf8 Qcb5 Bg4 Bg6 Ke8 Qb4 Bge6 Qg4 Bf5 Qh5 Rg2 Bh7 Rg7 Bg6 Rh7 Bb5 Rc4 Bc6 Rc2
b1RB2nB/kB2qr1b/3Qnp2/2p1rR1K/1Nr1R3/1R1qb2b/N6b/N2B4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 Kb6 d4 a5 g4 h3 e4 h6 b4 h2 d5 f3 e5 c3 g5 a4 g6 a3 d6 a2 e6 c2 d7 f2 e7 Qe8 d8B+ Kb7 b6 Rh7 g7 Na6 b5 Nc7 Nd2 Bh3 Be2 f1R Nb3 Rf4 Qd6 Ne6 Rb1 a1Q Bb2 c1B Bd1 Qa3 Ne2 Rc4 Nc3 Be3 Rf1 h1B Rf5 Be4 Na1 Raa4 Na2 Qd3 Be5 Ka8 b7+ Ka7 b8R Qd7 e8R Qe7 Bf4 f6 Rc8 Ba8 Rb3 Re4 Bg5 Rac4 Bf4 Re5 b6+ Ka6 b7+ Ka7 b8N Be4 Kg6 h5 Bh6 h4 Na6 Bg4 N6b4 h3 Bg5 h2 Bh6 Bh3 Kh5 h1B Rc3 Ba8 Rb3 Qb7 Re7 Be4 Re8 Ne7 g8B Rf7 Bh7 Ng8 Bg7 Qe7 Bh8 Bfh6 Bg6 Bhf4 Bh7 Bh2 Bg6 Qb7 Re7 Rf8 Be8 Rf7 Bc6 Qc7 Bb7 Qd7 Rg5 Bh7 Rf5 Rf8 Rg7 Rf7 Rg4 Qe7 Re4
b1qNbN2/K3N2R/R1B1p3/r1N1k1p1/3qb1nb/1R4bR/nr4qB/Q2B4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Ke6 h4 a5 b4 g5 c4 d5 b6 g3 f5+ Kf6 b5 g2 h5 e6 c5 e3 Kd3 e2 b7 e1B b6 a4 h6 a3 h7 a2 c6 Beb4 c7 Ba5 Bf4 Nh6 Nc3 Ng4 Be2 Na6 b8R Bb7 c8B Bd6 Bd7 Qc8 Nf3 g1Q Bh2 Bg3 Ne5 Qg2 Na4 Bae1 Nc6 Bh4 Nd8 Beg3 Bf3 Ke5 f6 Ra7 f7 Ba8 f8N Rb7 Rc1 a1Q Bc6 Rg8 h8R Rgg7 Be2 Nb4+ Kd2 d3 Nc5 d4 Rh7 Qa4 Ra1 Na2 Qg1 Ra7 b7 Ra5 Qb1 Rf7 Qe1 Rf2 Qg1 Nb4 Ra3 Na2 Qa1 Rf1 Rb3 Rb1 Rb6 Rbb5 Ra6 Rb4 Bg1 Rbb5 Rh3 Qc4 Bh2 Rb2+ Kd1 d2 Bef3 Rbb5 Be2 Qcd5 Kc2 d1B+ Kd3 Ba4 Bd1 Qde4+ Kc4 Rb2 Nb3 Bb5+ Kc5 d3 Kb6 d2 Nc5 Qd4 Ka7 Bd3 Rg7 Be4 Rh7 Qcd7 Rc8 Qe8 b8N Qed7+ Rc7 Qc8 Rb7 Bg6 Rb3 Be8 Bb5 Be4 Bd7 Ba8 Be2 d1B Nbc6+ Kf5 Ne7+ Ke5 Bdb5 Bc2 Bd1 Bce4 Bc6
2bq1k2/B1bpnn2/4n2R/qN1Q1B1R/1B1bKNr1/1p2b1R1/N5R1/3r1N1b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 g5 Kd3 b5 f4 e5 a4 g3 c4 g2 h4 b3 a5 g4 h5 b2 f6 g3 a6 b4 a7 b3 f7+ Ke7 c5 Nh6 c6 Na6 f5 Nc7 f6+ Kd6 Be3 Ke6 Ra2 Bd6 f8B Kf7 Nf3 g1B Ke4 g2 Nh2 d3 Nc3 d2 Bd3 b1B Nf1 Ne6 c7 Rg8 Rc2 Ke8 Na2 Nf7 h6 Rg7 Qh5 d1N h7 Rg8 Bc5 Be3 h8R g1B Rg2 Bd4 Rh4 Ne3 Rh6 Nd5 Qf3 Bde3 R4h5 Ne7 Bc2 Rg7 Qd1 Rg5 Qd5 Bd4 Bb4 Bge3 Bg7 Rg3 Bh8 Kf8 Bd3 Bb7 c8N Bc7 Nd6 Bc8 Nb5 Rg5 Re2 Rg1 Rg2 Rb8 a8R Rb6 Kf3 Rd6 Bf5 Bc2 Rg3 Bd1+ Ke4 Bf3+ Kd3 Bh1 Ra3 Rg2 Ke4 Rc6 Ra6 Rc1 Rc6 Rd1 Rc2 Rh2+ Rcg2 Rh4+ Kf3 Nd6 f7 e4+ Ke2 Rg4 Be5 Bdb6 Bd4 Ba7 Bdc5 Bd4 Bb6 e3 Kf3 e2 B6c5 e1Q Bb6 Kg7 f8N Nf7 Ng6 Be3 Nf4 Kf8 Ke4 Qc3 B6a5 Bad4 Bb6 Qc5 Ba7 Qc3 Bd6 Qa5 Bb4
2R1K1bQ/6N1/3B1qrq/2Rbk2n/nB3npN/NB4bp/2B1qR2/r1q4R b - - 0 1 illegal: No proof kernel
1k2N3/1qN3Nr/1bq5/1b1B4/prQ2n1b/nNB1R3/KpRR3b/1n1q2BR b - - 0 1 illegal: No proof kernel
Nq2Qbrq/2N1bBk1/Rq3pb1/1R3p2/2K1R1n1/r1Rr4/NB3B2/r4Nn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e6 Ra4 exf5 Ra5 Nf6 Ra1 Ng8 Kd2 h5 Kd3 a5 c4 d5 g4 a4 b4 h3 e4 h4 b6 h2 b7 a3 b5 h3 b6 f6 g5 Kf7 g6+ Kg7 e5 a2 e6 Nc6 b8B Nce7 c5 Bd7 b7 Qb6 c6 Ra3+ Nc3 Nh6 c7 Be8 c8N Nc6 e7 Rg8 Ba7 Ng4 b8R Bf7 Ne2 Nce5+ Kd2 d3 Qe1 d4 Bb2 Be8 Ng3 Bf7 Rc1 a1B Na2 Be8 Rg1 h1Q Rc3 h2 Bg2 Bf7 Bd5 Qg2+ Qe2 h1Q Re1 Qh8 Nf1 Qg3 Qe4 Be8 Bf7 Qf4+ Re3 Qg3 Qc6 Qf4 Qa8 Qg3 Re4 Nf3+ Kc1 d2+ Kc2 Qe5 Kd3 d1R+ Kc4 d3 Qc6 d2 Qb5 Qe3 Nb6 Ng1 Na8 Qb6 Rb7 Qb8 Qd7 Qa5 Bf2 Qb6 Ra7 Rc1 Ra6 d1R Qa4 Rd3 Qc6 Kh6 g7 Rcd1 Bd5 Bg6 e8N Kh7 Nec7 Rc1 Bf7 Re1 Bc1 Bb2 Qe8 Red1 Rc2 Bc3 Bb2 Bcb4 Rc3 Bfe7 Re1 Ra1 Re4 Rf8 g8R Kh6 Rg7 Rg8 Rd4 Bf8 Rd5 Bbe7 Rb5 Bh7 Rg5 Bg6 Rh5+ Kg7 Rh4 Nh2 Rf4 Ng4 Re4
4N2r/5qR1/4npbR/3rp3/r1RbN1B1/R2k1q2/nnr1NBB1/2BbQ2K b - - 0 1 illegal: No proof kernel
R1N3Qb/n2B1b1b/B1n1p3/n2r3R/2b2r2/1n3N1p/1k1BbN1B/R2qR2K b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Ke6 g4 Ke5 b6 h5 b7 a5 f3 d5 Kf2 e3+ Kg2 e6 g5 d3 c5 Kd4 b5 h3+ Kh2 d2 b6 h4 f4 e2 c6 e1N f5 a4 f6 a3 g6 a2 g7 Ng2 c7 Ra4 f7 Nc6 b8R Na7 b7 Ne7 g8B Rh5 Bc4 Bg7 f8B Nec6 Qe2 d1B Qf1 Be2 Bfa3 Ne3 Qf7 Bh8 Bb5 Nc4 Bg5 N4a5 Nd2 Kc3 Re1 a1N Bh6 d4 Bh7 d3 Ndf3 d2 Qg8 d1B Ra8 Rd5 b8R N1b3 Bhd3 Rf4 Bd6 Ba6 c8N Kb2 Ba4 Bc2 Rb5 Qd7 Bc4 Bg6 Ra1 Bf7 Bb8 Rd2 Rh5 Rd5 Bd3 Bc4 Bb5 Rff5 Bd2 Rf6 Ba6 Rf4 Bc2 Nc5 Ba4 Ncb3 Ne1 Qd8 Ngf3 Qd6 Kg1 h2+ Kg2 Qd7 Rg1 h1B+ Kh2 h3 Nd3+ Kc2 Nf2 Kb2 Rge1 Bg2 Bc7 Bgf1 B4b5 Bed3 Kh1 Bh7 Bb8 Bfe2 Bd6 Rg5 Bc7 Qd3 Bd6 Rd5 Bb8 Qc2 Bc7 Qd1 Ba4 Nb8 Bd7 Nbc6 Bd6 Rff5 Bg3 Rf4 Bh2
1R1RNQB1/1q3N2/pnq1p3/N1kb3n/3r1bRK/1rb1bB2/N2r2B1/3r2B1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 f4 h5 Kf2 d5 Kg3 Kd7 c4 Kc6 b4 e3 c5 e6 b5+ Kb7 f5 a3 f6 a6 f7 a2 b6 Kc6 g6 e2 g7 d3 b7 d4 Be3 d2 Rh4 d3 Nh3 Qa5 Nc3 Qa4 Rg4 Nd7 Bg1 Bd6+ Kh4 Nb6 f8R Nf6 g8B Bf4 Ng5 Rb8 Rb1 a1B Na2 Bc3 Nf7 e1B+ g3 Qc4 Rd8 Bf2 Qf3+ Qe4 Bh3 d1R Bg2 d2 Bh7 Qd5 Be4 B2e3 Qf2 Re8 Bef3 Re7 Rb2 Rd7 Rb3 Qe4 Rb2 Kd5 c6 Kc5 c7 Rd4 Rb4 Bd7 c8N Bc6 Ncd6 Bd5 Ne8 Qc2 Rb1 Qa4 Rb4 Qc6 Rb2 Rc1 Rb3 d1R Rb2 R1d2 Rb1 Ra8 b8N Rcd1 Rb3 Qb7 Nc6 Rb8 Na5 Qc6 Rg6 Rb7 g4 Rb8 g5 Qb7 Kh3 h4 Rg7 Nh5 g6 Qc6 Kg4 h3 Kh4 h2 Rg8 Nc4 g7 Rb5 Rb4 Nb6 Rh8 Qb7 g8B Qc6 Ra4 Rb3 Rb4 Na4 Rbb8 Nb6 Rh7 Qb7 Rg7 Qc6 Rg4 h1Q+ Bh2 Qf1 Bg1 Qfb5 Qf1 Qb7 Qd3 Qa4 Qf5 Qac6 Qf6 Ng3 Qh6 Nh5 Qf8+
3bK3/1RR3Rk/p1B2B2/8/1NN2Qr1/4ppB1/bNnbrr1N/1n1Rnqq1 b - - 0 1 illegal: No possible last move, all moves rejected
8/5qp1/BNNr1Npq/5Rbr/2bRp3/BRr3n1/KQ3nb1/B1k1nR1B b - - 0 1 illegal: No possible last move, all moves rejected
b1N5/k2Q1p2/q4B1n/R1nR2K1/nqBpB2p/2qB4/1b2N2b/rN2R1Rr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 c4 a5 g4 d5 e4 Kd7 b4 Kc7 c5 Kb7 c6+ Kb6 e5 f3 e6 h3 e7 h2 e8B f2 c7 d3 Ke3 d2 Kf4 a4 g5 a3 g6 a2 g7 Nh6 g8B Qd7 Kg5 Bb7 Ne2 Qd6 Bc6 Nd7 Rg1 h1Q Bh7 Nc5 Bb2 Ka7 Bf6 Qf3 Bd3 d4 Bce4 Qa6 Qa4 d1N Bc4 Qc3 Bcd3 Bc6 b6+ Kb7 b5 Bd6 Bc4 Nb2 Bcd3 Bh2 Bc4 Raf8 Bcd3 Ka8 b7+ Ka7 b8R Ba8 Rd8 Re8 Rd5 h4 Bh3 f1Q Be6 Qd1 Re1 Qdb3 Rg1 Qbb4 b6+ Kb7 Qd7 Nba4 Na3 Rb8 Rae1 a1B Nb1 Bb2 Rd1 Qac4 Rde1 Ka6 b7 Ka7 Bg4 Qa6 Be6 Rbe8 b8R Re7 Rb6 Rb8 Rbd6 Rb5 Rf5 Ra5 Bec4 Re6 Rdd5 Re5 Bh1 Re4 Rfe5 Rf4 Bhe4 Rf1 Rg3 Rh1 Rgg1 Nb6 Rf5 Ra1 Rfe5 Nba4 Rf5 Nb3 Ra5 Nbc5 Re5 Qb7 Rd5 Qbb4 c8N+
3q3k/BN1B1B1p/R1NbpB2/Rpr2nr1/1N1n3N/K2n4/4nQRr/5b1b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 Kg7 Kc2 b5 Kb2 c5 g4 e3 a4 b3 f4 h3 a5 h2 f5 c4 f6+ Kf7 d6 e2 d5 e1N a6 c3+ Ka3 c2 a7 b2 d7 Na6 d6 Bb7 g5 Nc5 g6+ Ke6 g7 Kf7 Bh3 Na6 Qf3 Qc8 d8N+ Kg6 d7 Nh6 g8B Nc7 f7 Kg7 Be3 c1N Nc6 Ned3 d8N Ne6 Nc3 b1R Nd5 Nd4 Bd7 e6+ Ndb4 Nhf5 Qf2 Bd6 Nf3 Nce2 Nh4 Rg1 Ra2 Rg6 Rg1 h1B Rg2 Rg5 Ra1 Qc7 Ra2 Rc8 a8R Qb6 Ra6 Rc7 Nb8 Rc2 Nbc6 Ba8 Nb7 Qd8 Rg1 Bg2 Raa1 Bf1 f8B+ Kf6 Be7+ Kg7 Bf7 Rf8 Rb6 Kh8 Ra6 Rc5 Rg2 Rfg8 Ra2 Rh5 Nf3 Rh2 Nh4 Rg5 Ra1 Nb3 Bd4+ Re5 Bc5 Nbd4 Ba7 Rc5 Nb8 Rd5 Rg4 Nef4 Nc5 Ne3 Ka2 Bc6 Nb7 Rc5 Rg1 Bh1 N8c6 Ne5 Rg2 Nfe2 Kb2 Nef5 R1a5 Nd3+ Ka2 Rg4 Ka3 Rg5 Bf6+
1RQr1k1B/R6R/K1B4p/4p2p/nR2b2b/NN4qr/4Nbn1/3nqbBB b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 fxe4 h5 g6 Qe2 gxh5 Qg4 Nh6 Qd1 Ng8 Ke2 d5 b4 e5 g4 a5 f4 e3 Kd3 e2 c4 e1B f5 a4 b6 a3 g5 h6 f6 a2 c5 Ba6+ b5 Bb7 g6 Qc7 c6 Ba5 f7+ Ke7 g7 Qd6 c7 Qd7 c8B Ra6 Ne2 Qh3+ Be3 Qg3 Bg2 Nf6 g8R Nbd7 Rg7 Be1 Qc2 Bf2 Rh7 Ng4 Rh4 Ra3+ Qc3 Bc6 b7 Nb6 b8N Na4 b6 Bg7 b7 Rd8 Bf3 Bf6 Bd7 Kf8 Na6 Be7 b8R Bf6 Rh1 Bh4 Nc5 Rb3 Na3 Bb5+ Kd2 d3 Bc6 d4 Rhb1 Ba6 Bh1 Bc4 Bg5 Ne3 Bf6 Ng2 Bh8 Bd5 Qc4 Be4 Qe6 Rc3 R1b4 Rb3 Qc8 Rc3 Kd1 d2 Nb3 Rd3 Kc2 d1N Rb1 a1Q Rb2 Qg7 Ra2 Rh3+ Kd2 Qb1 Ra1 d3 Ra2 Ke7 f8B+ Kf7 Bc5 Qa1 Be3 Kf8 Bf4 Qg8 Bh2 Qg3 Bg1 Qd4 Kc1 Qc3+ Kb1 Qe1 Ra1 Bf3 Ra2 d2 Kc2 Re8 Kd3 Rd8+ Kc4 Be4 Kb5 Ndc3+ Ka6 d1B Ned4 Be2+ Nc4 Bf1 Ne2 Nd1 Na3 Rh2 Rd2 Rh3 Rdd7 Kg8 Rdb7 Kf8 Ra7
Rn1bQ2r/n1bqRB2/1N1p1p2/1N2RBq1/2Nr4/KnN5/1BB1b1p1/1b4k1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 h4 g5 c5 a5 h5 d6 h6 a4+ Ka3 g3 b4 d3 b6 f6 b7 g4 c6 g2 b5 f3 b6 g3 h7 f2 c7 d2 Nf3 Ke3 Rh5 g1N Nc3 g2 Nd4 Qe7 Ndb5 Nf3 Qe1 Qd7 Bb2 d1Q Rb1 Qc2 Re5+ Qe4 Re7 Qe5 Rd1 Ra7 Rd5 Nd4 Rc5 Nb3 Rd5 Kf4 e4 Kg3 Bd3 Kh2 Bc2 Qg5 e5 f1B e6 Kg1 Re5 Ra8 Qe4 Be2 Qg6 Ra6 Qe8 Ra5 Nd4 Rd5 Ndb5 Nc6 b8R Rd4 b7 Na7 Rf7 Be7 Ra8 Bd8 b8N Bb7 c8B Ne7 Rg7 Nec6 e7 Qdf5 Nd7 Nb8 Rf7 Be4 Nb6 Qh3 Bf5 B4d3 Bd1 Bb1 Bdc2 Qhg4 Bfe4 Qd7 Bf5 Rf8 h8N Bc7 Ng6 Rh8 Nf8 Bd8 Nc4 Bc7 Kb4 a3 Rg7 a2 Ka3 a1B Rh7 Qc8 Nd7 Qd8 Ndb6 Qd7 Qc8 Bd8 e8B Bc7 Bf7 Bd8 Nd1 Bc7 Qe8 Bd8 Bc1 Bc3 Bb2 Ba5 Ndc3 Bc7 B7e6 Bd8 Re7 Bc7 Bf7 Bd8 Nc8 Bac7 N8b6
N2K4/rbQ3b1/Npr1RR2/4b2B/Rpq1k1B1/1n1Np1N1/1q3B1b/2nr1R2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 e5+ d6 h5 f4 c6 a4 e3 g4+ Ke4 d4 h3 f5 h4 g5 e2 f6 e1B f7 h2 d5 h3 g6 Qe7 Kb6 c5 g7 c4 a5 c3 a6 c2 d7 Qf6+ Kc7 b6 d8R Bd2 a7 Bg5 d6 Ne7 g8B Nd7 Na3 Nc5 d7 Rh4 Re8 Bg7 f8R Bf4 d8N Ng6 Ne2 Rh6 Ne6 Bb7 Qd8 Nb3 Be3 c1B Nc2 Bb2 Ne1 Bc3 Rg1 h1Q Bf7 Bh2 Ra4 Nf4 Bh5 Nd3 Bf2 Ndc1 Nd3 Qhf3 Kd7 Q3f4 Nc7 Q4h4 Na6 Ba1 Be3 Qff2 Rf3 Rc6 Re6 Qg4 Rf6 Bc3 Nd4 Qb2 Bf2 Qge2 Nf5 Bd4 Nf4 Qc4 Nd3 Kd5 Rg2 e4 Ke8+ Bd6 Kd7 e3 Rg1 h2 Bfe2 h1R Beg4 Bh2 Ng3 Be5 Qc8 Kd4 Kd8 Kd5 Rg2 Rf1 Rg1 Rd1 Rf1 Rb8 a8N Kd4 N8c7 Ra8 Qb8 Ra7 Na8 Kd5 Qc7 Kd4 Nh1 Ke4 Ng3+
3N2r1/b2B2rR/pk2K1bR/R5b1/1qB1bNN1/2B3n1/2nN2pp/1QR1q1q1 b - - 0 1 illegal: No proof kernel
4b1bB/1n2p3/3B2pr/1kbq2rB/2b5/1N3R1K/1NBN1pNR/1nqQRq2 b - - 0 1 illegal: No proof kernel
1b3Rr1/Npbk1rB1/5R2/1Q1NN1BK/1p1rp1rN/8/B2qnnR1/1b2qB2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 h5 g4 e5 a4 c5 f4 c4 d4 h3 a5 h4 f5 e3 Kf3 h2 g5 e4+ Kg4 h3 a6 c3 a7 e2 g6 e1B d6 c2 d7+ Ke7 d5 Bg3 g7 Bc7 d6+ Kf7 f6 Ke6 f7 Nc6 Ra2 Nd4 Qd3 Ne2 Bg5 c1R Qb5 Rh7 Nc3 Rd1 Nd5 Rd4 Nf3 Nh6+ Kh5 Bb8 Rg1 h1R g8B h2 Rg2 Rg1 Ra6 h1Q+ Nh4 Be7 f8B+ Rf7 Bg7 Ng4 Rc6 Nf2 Rb6 Bc7 Ra6 Rb8 a8R Bf6 Rb6 Be5 Rc6 Qe8 d8N+ Kd7 Ra3 Bg3 Rf3 Qe5 Rf5 Qf4 Rf6 Qd2 Rf3 Ke8 Ra6+ Bd7 Nc6 Be6 Ra8 Kd7 Rf6 Re7 Bf7 Rg8 Rf8 Bb8 Nc3 Ba2 Bd5 Bb1 Ba2 Bc7 Nd5 Qh3 Bh8 Be5 Bg7 Qhc3 Na7+ Qc6 Rh2 Rg4 Rg2 Rf7 Rf3 Ke6 d7 Qcc3 d8N+ Kd6 Ndc6 Kd7 Rf6 Qe1 Re6 Qcd2 Rh6 Bb8 Rf6 Bec7 Ne5#
q1RR4/2b5/pNB1n2r/K4p2/2b1N1r1/pRBn1kBn/R2q3p/qBQ1N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 e4 Kd7 d4 Kd6 Kd2 f5 Kc3 c5 g4 h5 b4 h3 b5 h4 g5 a6 b6 h2 e5+ Ke7 d6+ Ke6 b7 Kd5 d7 Ke4 g6 f3 e6 c4 d5 h3 d6 f2 Kb4 a3 g7 c3 e7 c2 e8B Rh4 Nf3 Ne7 g8R Rg4 Bd2 c1N Ne1 Ng6 Ra2 Nf4 Bc3 Ncd3+ Ka4 Bh6 Qc1 Nc6 b8N Nd4 Nd2+ Ke3 Bg2 f1Q Be4 Nde6 Rh8 Qg5 d8B Qg2 Rg1 h1Q d7 h2 Ka5 Nh3 Bc7 Qd8 Rf1 Bf4 Rf3+ Ke2 Rg8 Bb7 Rg3 Bd5 Rf8 Qf6 d8R Bc4 Nd7 Bd6 Bb8 Bc7+ Nb6 Qg7 B8c6 Qf2 Bb4 Qa1 Bc3 Qd4 Rc8 Ra7 Rfd8 Qd5+ Bb5 Qa8 Ba4 Qg2 Bec6 Qf2 Bc2 Qd4 Bb1 Qf4 Ne4+ Qd2 Ka4 Rb7 Nd5 Rb5 Nb6 Rd5 Rf3 Rd7 Ka5 Rh7 Re8 Rh6 Rg8 Bd8 Bg3 Bc7 Rgd8 Nb4 Rfd3 Bf4 Bb2 Bc7 Rb3 Nd3+ Bc3 Ke3 Ng2+ Kf3 Ne1+
q2N1bn1/1B2B1Bp/5qR1/bNB3q1/p1N2Rrk/1p3r1b/2Qp4/3Nn1RK b - - 0 1 illegal: No proof kernel
2r4N/Bp1N3n/3R2K1/1B2b1B1/Bp1Qr1p1/r1npb2R/R4qR1/2kq1N1b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 e5 f4 g5 c4 d3 a4 d2 h4 d6 a5 g3 a6 g2 h5 g4 a7 Bh6 c5 Nc6 Rh3 Na5 c6 Qe7 c7 Nb3 Ra6 Be6 c8B Nd4 Bd7 Nb5 Nf3 Bg7 h6 g1B h7 Be3 Rb6 Rc8 a8R Qf8 Ra2 Ra8 Bc4 Ra3 Bb3 Bc4 Ba4 Be2 Qg1 d1Q Nbd2 Bf1 Ra6 Bg2 Nf1 Bh1 Rg2 Qf7 Qf2 Qa2 Qd2 Qb2 Qd4 Qf2 Ra8 Ne7 Bc6 Rc8 h8N Ng6 Bd2 Nf8 Be8 Nc7 Beb5 Nh7 Ra6 Nd5 Rc6 Ke7 f6+ Ke6 f7 Bf6 f8R Nc3+ Kd3 Kf5 Rg8 d5 Rd6 Rc4 Ra8 Rc8 Bb3 Ra1 Ra2 Bg7 B3a4 Bf6 Rb2 Ra3 Ra2 Bg7 Ng5 Bf6 Ne6 Bg7 Nf8 Bf6 Qc5 d4 Nd7 Bg7 Kc4 Ke4 f5 d3 f6 Kf4 f7 e4 f8B Be5 Be7 Qc2 Bh4 Qd1 Bg3+ Kf3 Bf4+ Ke2 Bg5 B3d4 Bde3+ Ke1 Bef4 e3 Bh2 e2 Bg1 Re8 Qb6 Be3 Qd4 Rc8+ Qc5 Ne4 Kd5 Nc3+ Ke6 Qb3+ Ke7 Kd1 Qd5 Kc1 Qd4 Qd1 Ke6 e1R Ke7 B3f4 Kf7 Re2 Kg6 Re4 Qc4 Qg3 Ba7 Be3 Qd5 Qf2 Qd4
2B3R1/qp3K1b/Rr1bN2B/k1qpbNq1/2np2QR/rp1B1N2/7N/2R3n1 b - - 0 1 illegal: No possible last move
1bR1nB1b/1BB2q2/3p3r/R2r1N1N/Q1K5/1pbN2Bp/1bn1p2R/k3Nb2 b - - 0 1 illegal: No possible last move, all moves rejected
1q2k2R/B1n2NRb/1Q3r2/n2rN2p/3Np2r/1B3pp1/R2B2NR/br1n1K2 b - - 0 1 illegal: No possible last move
rb2R1R1/NK3QN1/1pB5/1rprB3/1k1b4/p5bb/N3BqRp/n3BR1n b - - 0 1 illegal: No proof kernel
1RK3B1/R1p2B1R/pNb3n1/n3Bn2/3bprRQ/Bpr2q2/3kN3/5nNq b - - 0 1 illegal: No proof kernel
1n2q2Q/1K6/Rn1k1b2/2RN1pN1/q2pr1Rp/p1pBn2B/1BrB4/1b1N2R1 b - - 0 1 illegal: No proof kernel
1qRkn2R/BRr1rrQK/8/1b1n4/N1N1nr2/2N1N3/n3R3/2Br1r1Q b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 Qa4 h5 Kd1 f5 Bg2 f4 Bh3 f2 Kc2 f3 Bg4 Bd6 Qb3 Bf4 gxf4 hxg4 Kc3 Bd7 Qd1 Be6 Kc2 Bc8 h4 f1R e4 g5 d4 a5 b4 c5 h5 c3 Kd3 a4 b6 g3 f5 c2 b5 g4 b7 g2 b6 a3 h6 f2 e5 c4+ Ke4 a2 e6 c3 h7 g3 e7 Qd7 d5 Ra7 f6 Qd8 d6 Nc6 b8R Ba6 Kf5 Bb5 Kg6 Qc8 b7 Nb4 Na3 Nd5 Ne2 g1R Nc4 g2 f7+ Kd7 e8N Kd8 f8N Ngf6 Ng7 Ne8 Rb1 a1R Nd7 R1a4 Rh2 Rf8 h8Q Rf7 Kh7 Rh1 Rb3 g1Q Nc5 Qg3 Qf8 Rb4 Na4 Rhg1 Ra8 Qf4 b8B Rae7 d7 Rh1 Bd2 c1R Ba7 c2 Nec3 Qfb8 Qh5 Rcd1 Bc1 Rhg1 Qh8 Rg6 Qf3 Rc6 Qh1 Rc7 Rb2 Rg1 Rb3 f1N Re2 Nd2 Rb1 Ne4 Qg8 Rf3 Qf7 Rge1 Nf5 Ref1 Qg7 R3f2 Nfe3 Rff7 Bd2 c1N Rb2 Na2 Bc1 Qbb7 Rb8 Qa8 Rb7 Qab8 Rh2 Qa8 Rbe2 Qcb8 Kg8 Qc8 Rh8 Qab8 Kh7 Ng3 Ne5 Rbf4 N5c4 Ne4 dxc8R+
Q1QnK3/R5b1/B4qN1/6NR/1k1qp1rB/2NB1r1n/b1r1BNnb/8 b - - 0 1 legal: proof: b4 b5 e4 d5 h4 f5 c4 fxe4 cxd5 c5 bxc5 g5 a3 gxh4 a4 a6 axb5 axb5 c6 b4 Ke2 h5 Ke3 e5 d4 Ke7 f4 Kd6 g4 b3 f5 h3 g5 h4 g6 h2 g7 h3 f6 b2 c7 Rh5 f7 Rh4 Bd3 Ra3 Qa4 Qf6 Qa8 Ne7 g8B Nbc6 Nc3 Be6 c8B b1R Bca6 Bg7 f8N Rb2 Ng6 Rg4 Bd2 Nd8 Be1 Bf7 Bh4 Rc2 Be2 Be6 Bad3 Rb3 Ra7 Ra3 Bh7 Bf7 Ba6 Nf5+ Kf2 e3+ Kf3 Rg5 Ke4 Rg4+ Kd3 Be6 Kc4 Bf7 Kb5 Bg8 Bd1 e2 Qc8 e1B Be2 Bg3 Kb6 Nf7 Kb7 Ne3 Qa8 Kd7 d6 Ng2 d5 Nd8+ Kb8+ Ke8 Kc8 e4 d7+ Kf7 d6 Ke6 Kc7 Bf7 Bg8 Bf4 Nf3 Be5 Ne1 Bg3 Nd3 Be5 Rd1 h1N Nf2 h2 Rd5 Bg3 Rh5 Rb3 Nd3 Nf2 Qc8 Nh3 Nf2 h1Q Qa8 Nb7 d8Q Bh2 Kc8 Qe1 d7 Kd6 Qe8 Qf1 d8N Qd4 Ne6 Nd8 Ng5 Kc5 Bed3 Bd5 Kd7 Kb4 Qe6 Ra3 Ke8 Ba2 Qec8 Qa1 Bgc4 Qf6 Nb5 Qad4 Be2 Re3 Bcd3 Rf3 Nc3
2R1Q3/rbb1nN2/r2p1Bn1/1nNbB1R1/Nq5B/B5bK/1N1krQ2/8 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 f5 e4 b5 exf5 bxa4 Bd3 a3 Bb5 a4 Bxa4 a2 b5 Rh6 Bb3 Rh8 Bc4 Nh6 Bg8 Nxg8 Kf1 Kf7 Kg2 Kf6 h4 Ke5 c4 Ke4 f4 g5 h6 e5 c5 d3 h7 d2 f6 Ke3 f7 g4 h5 g3 b6 e4 b7 Qc7 f5 Nf6 h6 Ra6 c6 Rg8 h8B Be7 f8N Bd8 h7 Ra8 Nh3 Qd6 c7 Nd5 f6 Na6 b8B Bb7 c8Q Ra7 f7 Bc7 Bf6 Qb4 h8N Ne7 Ne6 Re8 f8B Kd3 Ba3 e3+ Qf3 d1B Rf1 Bb3 Rc1 B3d5 Nc3 Kd2 Nhf4 e2 Nc5 e1B Kh3 g2 Nf7 Bg3 Rab1 a1R N3a4 Ra2 Nfd3 Ra1 Ndb2 g1N+ Kg2 Ne2 Kh3 Ra2 Rc3 Ra1 Rg1 Ra2 B8g7 Ra1 Bh4 Nf4+ Kg4 Nfg6+ Kh3 Bcd6 Rcc1 Nc7 Bgf6 Nb5 Bc7 Bdf4 Bce5 Ra2 Qc6 Rea8 Qc8 Ra6 Qe8 R8a7 Bd4 Bd6 Bde5 Bc7 Rc4 d6 Rg2+ Bf2 Rg5 Bg3 Qf1 Ra1 Qg1 Re1 Qf2+ Re2 Ne6 Bd8 Rc8 Bc7 Nec5
3nk1N1/2qQ1q1q/2R1B1pn/b2RN3/4B2q/B2N2q1/Kn3B1N/bnQ5 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 e4 fxe4 d5 b5 d6 b3 Ra2 b4 Ra1 cxd6 Bb5 d5 Bf1 d4 g4 Ra5 f4 Bb7 f5 Rb5 axb5 Bd5 f6 Be6 Ra2 Bf5 Ra8 Qb6 Ra1 Qd8 gxf5 g6 h4 Nh6 h5 Rg8 Bh3 Rg7 Bf1 Ng8 h6 Na6 hxg7 Nb8 Kd2 h6 Ke1 h5 Kd2 d5 c4 e5 c5 e3+ Kd3 h4 c6 b2 Kc2 e4 Kb3 d3 b6 e2 b7 e1B c7 h3 c8B h2 Bg2 e3 Ka2 d4 Nf3 d2 Nc3 d3 Na4 e2 Nc5 Nc6 b8N Qc7 Nbd7 Nd8 Rf1 h1Q f7+ Ke7 Rb1 Qh7 Nh2 Nh6 Qa4 d1Q Be4 Bc3 Be3 e1Q Rc1 d2 Qc6 Bd4 Ne5 Qg4 Bg1 Qeh4 Bf2 Qgg3 Rfd1 b1N Rc3 Na3 Rcc1 Nc4 Rc2 Ne6 g8N+ Kd8 Rcc1 Ba1 Rc2 Bd6 f8B Be7 f6 Bd6 f7 b3+ Kb1 b2 Ka2 b1N Be1 Nd4 Be6 Nb2 Qa4 Nc6 Qa3 Nd3 Qc1 Nb2 Bf2 Be7 Na4 Bg5 Ba3 Be7 Rc4 Bb4 Nc5 Ba5 Bc8 Qd7 f8Q+ Qe8 Qf4 Qef7 Be6 Ke8 Qf3 Nd8 Qd3 Qc7 Rc3 Qcf7 Qd7+ Kf8 Rg1 d1Q Rc2 Qd2 Rd1 Qd6 Rd5 Qc7 Ncd3+ Qd6 Qb7 Ke8 Rc6 Qb8 Qc8 Qbc7 Qd7+
NQ3Nb1/1k3BR1/rN2n1N1/Q2bn2B/p4Q1n/4p3/p3q1n1/K2R1Qb1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Be6 Ra3 Bd7 Ra1 Bc8 b4 gxh4 Be2 c5 Bf1 a5 Bb2 a3 Be5 a4 Bc3 Ra5 bxa5 Qd6 Bb4 cxb4 Qg4 Qb6 Qd1 Qd8 g4 Kd7 f4 Kc7 d4 e5 Kd2 h5 Kc2 h3 g5 e4 f6 a2 Kb2 e3 f7 b3 a6 h4 f5 h2 a7 h3 a8N+ Kb7 g6 Qg5 f6 Bg7 f8N Nc6 d6 Qb5 f7 Rh6 d7 Nd8 Nd2 Ne6 d8Q Qe2 Nf3 Ne7 Rg1 h1B Ne5 h2 d5 Nc6 d6 Bd5 d7 h1N Qa5 Nf2 d8Q Nh3 Qb1 Bh8 g7 Nhf4 Neg6 Ne5 g8B Ng2 Qf5 Bf6 Qf4 Bh4 Rd1 Bf2 Ka1 Bd7 Nc4 Bb5 Ncb6 Bbc4 Rh1 Bg1 Qb8+ Kc6 Qe1 Qd3 Qd4 Nd8 Nh4 Qf5 Nbd7 Qh5 Nh7 Be6 f8Q Bcd5 Qa5 Rf6 Bd3 Qe2 Bg6 Bf7 Rh3 Rd6 Bh5 Ne6 Qbe8 Kb7 Rg3 Ra6 Ndb6 Bg6 Qf3 Bf5 Nf8 Bh7 Bgf7 Bg8 Qdf4 Qd3 Kb2 Qe2+ Ka3 b2 Qf1 Ne1 Rg7 Ng2 Nhg6 b1N+ Kb4 Nd2 Kc3 Ndf3 Qd8 Qc4+ Kb2 Nfh4 Ka1 Qe2 Qb8+
qQB2Rn1/2Q5/qR4p1/BrNk4/p3nn1K/pr2R1NR/6Q1/1Q3n1q b - - 0 1 legal: proof: b4 e5 c4 h5 a4 d5 cxd5 b6 g4 hxg4 f4 exf4 a5 bxa5 b5 Ba3 Bxa3 Bf5 Bc1 Bc2 Qxc2 Qg5 Qd1 Qd8 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 e5+ Kd7 d6 Ke6 d7 a6 b6 a4 b7 g6 d5+ Ke7 h5 a5 e6 Kd6 h6 c4 e7 f3 Kg3 a3 e8R f2 h7 a4 Bd2 c3 Bh3 f1Q Re3 c2 Nc3 c1N Rb1 Nd3 Nge2 Na6 b8Q+ Kc5 d6 Nf4 Qb7 Rb8 Qg2 Rb3 Ne4+ Kd5 Qc2 Rb5 Ba5 Qa8 d8Q Nc5 Kh4 g3 d7 Rb3 Qc7 Rb5 Nf2+ Ne4 Nd3 Rb3 Nc5 Rb5 Qg1 g2 Ng3 Qc4 Qh2 g1Q Qhg2 Qd1 Rh2 Qh1 Rb2 Rb3 Qb1 Qca6 Bg4 Nd3 Qb8 f4 Rh3 f3 Bf5 f2 d8Q+ Kc4 Qd7 f1N Qdc7 Nf4 Bc8 Rb5 Rb4+ Kd5 Rbb3 Ne7 Rb2 Re8 h8R Ng8 Rb4 Re6 Rbb3 Reb6 Rb4 Nf6 Rf8 Ng8 Rc4 Rb3 Rb4 Rb7 Rb6 Rb5 Re6 Rb3 Ref6 R7b5 Rb6
KQ2Q1bq/QB2n1rB/bR1B2Nn/b3R2q/3Qb2n/3qr3/2Bk4/Nn6 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 h5 g4 c5 d6 f5+ Kd5 b3 e4 h3 b6 h4 d7 b2 b7 h2 e5 h3 e6 c4 e7 c3 e8B c2 Bf7 Nc6 b8Q Nce7+ Kc5 Ba6 d5 Ra7 d6 Nh6 Na3 b1N Bd3 Bg7 Be6 Bc3 Ne2 Ba5 Qg1 Re8 Bd5 Bc4 Bf3 Bg8 Bb7 Qc8+ Kb5 Qd8 Bb2 c1N Nc2 f3 Nf4 f2 Be5 f1B Ng6 f4 Qc5 Bg2 Re1 h1Q Ra3 h2 Rb3 f3 Na1 f2 Bc2 f1B+ Re2 Ra8 Qca7 Nd3 Ka6 Be4 Rb6 Ne1 Bg3 Qf3 Be5 Qc8 d8Q h1Q d7 Ng2 Bd6 Qcc3 Qdc8 Qh8 d8Q Qh5 Qc5+ Qf5 Qd4 Nh4 Qd7 Rc8 Qe8 Rc7 Ne5 Kf4 g5 Rc3 g6 Re3 g7 Qh3 Ng6+ Kf3 Qc7 Rd8 Qab8 Rd7 Ka7 Qg3 Re1 Ba6 Ka8 Qh3 Qa7 Qf1 Qcb8 Qd3 Rf1+ Ke2 Rf5 Kd2 Rg5 Bf7 g8B Rc7 Bh7 Bg8 Qc5 Nc6 Re5 Rg7 Qc4 Ne7 Qd4
4r1rB/R4knq/2r4Q/K1Qr1n1n/8/B1QBbq1p/2B2bRN/2r2Q1N b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 h5 b4 d5 c4 f5 e4 a5 g5 h4 e5 f4 e6 a4 c5 a3 g6 h3 e7 d3 Kc3 a2 b6 f3 b7 d2 b5 d4+ Kb4 f2 c6 d3 b6 Qd5 g7 Nf6 g8B Ra6 c7 Nh5 Rh2 Qd7 Ba3 Bh6 Bb3 Be3 Nc3 Ng7 Nf3 g1R Ne2 g2 Bc2 Kf7 c8Q Re8 Ng3 Nc6+ Kb5 Qc7 b8B Nd4+ Kb4 Qb7 Be5 Ndf5 Qc5 Qd7 b7 Rc6 Qb1 d1R b8Q d2 Bfd3 f1N Nh1 N1g3 Qc8 N3h5 Ka5 Rc1 Qa6 d1Q Qb2 Qe2 Qbc3 Rgd1 Qab5 g1B Rg2 Bgf2 Nh2 Qf3 Qb1 Rd2 Bf6 Rg1 Qf1 Qb7 Be4 Rd5 Bed3 Ne6 Bh8 Neg7 Rb1 Qd7 Rb7 a1R Ra7 Rc1 Qc4 Qd6 Qf4 Qg6 Qh6 Rd4 Qc3 Qh7 Qc5 Rdd8 Qc3 Rd5+ Qc5 Rf8 e8Q+ Kg8 Qe5 Re8 Ra6 Kf7 Qc3 Ne6 Rg4 Rg3 Rc4 Rg6 Rg4 Rgg8 Rg2 Neg7 Ra7+
5N1N/rQ3q1n/3kNB2/q3q1B1/1Qb4R/1pB1n2K/1n1N2BR/rqqb4 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 a4 Ke7 e4 b5 d4 c5 g6 h5 e5 f5 g7 f4 e6 f3 a5 g2 Kf2 g3+ Ke1 b3 a6 c4 a7 c3 Qd2 f2+ Ke2 c2 Kf3 h4 Kg4 b4 Ra2 h3 Ne2 g1Q Nf4 h2 Bg2 f1N Ng6+ Kd6 Nf8 Qe3 Bb2 c1Q Bc3 Nd7 e7 b2 e8Q b3 Qf7 Rh5 Ra4 Rg5+ Kh3 Ngf6 g8N Qe5 Ne7 Qa5 Neg6 Nh7 Nh8 Rg7 Qdf4 Ba6 Nd2 Nc5 Qb7 b1Q Qe4 Rd8 a8N Bc4 Nc7 Ne3 Nce6 Ra8 Qb4 Ra6 Qf3 Rc7 Qf7 Rca7 Qfb7 Qf1 Ra2 Qf7 Rc2 Qac7 Rb2 Ra1 Ra2 Ke7 d6+ Kf6 Bd5 g2 d7 Ke7 d8B+ Kd6 Nf3 g1Q Bg5 Qef6 Kh4 Qgc1 Rg2 Q6g7 Nd2 Qa5 Bc6 Qgf6 d5 Qd7 Rg4 Qff5 Kh3 Qe5 Rh4 Qdg7 Rg1 h1B Rg2 Qf7 Rh2 Bf3 Bf6 Bfe2 Bg5 Qd4 Bf6 Bd1 Bg5 Ke5 d6 Nd3 d7 Nb2 d8B Qe4 Q4b5+ Kd6 Bdf6 Qeb1 Bg2 Qe5 Qb4+
2k2K1N/2rB2Rb/8/q1Qq1n1q/1N4b1/nQ3B2/1n1r1QRp/bNQ1b2N b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ba3 exf4 axb5 Bb7 b6 Ba6 b5 Bc8 Bb4 axb4 Kf2 Kd7 Kf3 c5 Kg4 h5+ Kf5 h3 g4 h4 e4 f3 d4 b3 g5 h2 b7 f2 b6 b2 e5 f6 Kg6 c4 Kf7 c3 g6 f5 d6 f4 g7 c2 d5 c1B Ra7 f3 Be2 f1Q Nh3 f2 Rg1 h1B Bf3 Rh7 Rg2 Bd2 Qc1 Na6 b8Q+ Qc7 b7 Qa5 Qc5 Nb4 e6+ Kd8 d7 Qe2 Qg3 f1Q b8Q Qfd1 Qgf2 Nd3 Qbg3 Be1 Qf4 Ne7 Qfc1 Nf5 Kg8 Be7 Rb7 Bg5 Kf8 Bf6 g8Q Ra6 Qgg3 Rc6 Qb8 Rd6 Ra7 Qed2 Qb3 Qg5 Rb7 Qh5 Nc3 b1N Qfe3 Nb2 Be2 Qa6 Rg8 Na4 Nf2 Be4 Bf3 h3 Rg2 h2 Nh1 Ne7 Qf2 Na3 Nb1 Ba1 Rc7 Nc6 Ra7 Bb7 e7+ Kc7 d8N Qa5 e8B Nb2 Nf7 Rd8 Ra8 Bc8 Nh8 Bg4 Ra7+ Kc8 d6 Rg7 Rb7 Bh7 Re7 Rd7 Rf7 Rc7 Rd7 Rg6 Rg7 Ne7 Bb5 Nf5 d7+ Kb8 d8N Kc8 Ba4 Rd6 Nc6 Qd3 Nb4 Qe4 Qa2 Rd2 Qb3 Qd5 Bd7+
1BQ5/1Nn2bK1/1rr2Q2/6Nb/R1B3qQ/1r4b1/N1RQ1p2/b1rkN1nr b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g4 f5 g5 c5 g6 b3 d6 b2 d5 f3 d7 h3 g7 f4 d6 h4 b6 f2 b7 f3 Ke6 h2 Kf7 h3 Ra3 Ne7 g8Q Bg7 Ra5 Nd5 Kg6 Nc6 b8Q Ra6 Qc7 Nd4 e4+ Ne2 e5 Rh6+ Kf7 Qh4 d8N Qg4 e6 Rb6 e7 Be6+ Ke8 Kb4 d7 c4 Qh8 c3 Ra2 c2 Ra4+ Kb3 Nc3 b1R Na2 Ba1 Kf8 Bf7 e8N Rhc6 Qc8 Nc7 Qd2 Bh5 Bb2 c1B Be5 Bcb2 Bf4 Be5 Nb7 Rbc1 d8Q Bf7 Bg5 Bg3 Qh4 Rb1 Nf6 Rbc1 Qe1 Kc2 Ne4 Rcb1 Qb4 Rb3 Qf6 Kd1 Bf4 Bh5 Ng5 Bf7 Bg2 f1B Kg7 f2 Nf3 Ng1 Ne1 B1c4 Qa5 Bh5 Bf1 Bcf7 Bd6 Nf3 Rg1 h1R Bc4 h2 Bf4 Nb5 Bb8 Nc7 Rg2 Rf1 Rg1 h1R Qac3 Be5 Rg3 Ng1 Re3 Bg3 Re2 Rb1 Rc2 Rc1 Nd3 Re1 Qa5 Re3 Ne1 Reb3 Qd2#
R1r1b1r1/1k2p1r1/3B1N2/K2b4/3q1NBN/2Rrq3/Q2b2rn/Nq2B1BQ b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g6 axb5 Na6 d4 cxd4 g5 fxe4 f4 Nc7 f5 gxf5 g6 f4 Rh2 Ne6 Rh1 Ng5 hxg5 Qa5+ Kf2 Qc7 Ke1 Qd8 Kd2 h5 c4 d5 b4 Kd7 c5 Kc7 c6 a5 g7 d3 Kc3 h4 g6 h3 Ra3 h2 Qc2 a4 Be2 e3 Nh3 f3 Qa2 d2 Nf4 d1R Bd2 f2 Bg4 f1Q Be1 e2 Nd2 Nf6 g8Q Bd7 g7 Rc8 Nb3 Be8 Na1 Rd2 Qh7 Rg8 b6+ Kb8 c7+ Kb7 b5 d4+ Kb4 d3 Qh3 Qd4+ Ka5 Qf3 Rb3 a3 Rc3 Qfe3 Rg1 h1B Qh4 Bg2 Qh1 Bd5 Rf1 Rh8 g8N Bh6 Rf2 Rc2 Rh2 d2 Rf2 Nh5 Nf6 d1R Rh2 Ng3 Rg2 Rd8 c8N Nf1 Rg1 Rg8 Nd6+ Ka8 Rg3 Rc8 Nf5 Nh2 Nh4 Rd3 b7+ Ka7 b8B+ Kb7 b6 Rb2 Bf2 e1Q Bg1 Rg2 Bd6 Qb1 Bb4 Ka8 b7+ Ka7 b8B+ Kb7 Qf2 a2 B8d6 Rg7 Ra3 Rg8 Be1 Bg5 Nc2 a1R Ra4 Raa3 Na1 Rab3 Qa2 Rbb2 Bd7 Bh6 Rf3 R2g7 Bg4 Rg2 Rf2 Bdf7 Rc2 Bd5 Rc3 Qf3 Ne2 Bd2 Nf4 Qfe3 Ra3 Bc4 Ra4 Qc2 Kb4 Qd1 Ra6 Qb1+ Ka5 Bd5 Ra8
3b1BQ1/1q6/1rp1Bn1n/RQN5/7k/3rn2B/qQQ1NB1K/qnRn1q2 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 d4 Ke7 e4 Kf6 b4 a5 b6 h5 d5 a4 b7 h4 d6 c6 b5 a3 b6 h3 d7 a2 Nc3 h2 Qb3 Qc8 d8B+ Be7 Ba3 Kg5 e5 f5 e6 f4 Qd1 f3 Nge2 g1Q Nd4 g2 Na4 c3 Qe2 c2 Bd6 c1N Qc2 Ne2 Nc5 Nc3 Ne2 Kh4 g5 Nb1 g6 Nh6 g7 Nd7 g8B Nf6 b8Q Ra3 b7 Rd3 Bb6 Bd8 e7 Qd4 e8Q g1Q Be7 Qa4 Be6 Qg2 Rg1 h1N Qg8 Nf2 Bf8 Nd1 Ba7 Qh1 Bfh3 f2+ Kf1 Qa3 Qh2 Qa8 b8Q Qb7 Qb2 Qf3 Rh1 Qf4 Kg2 f1N Kg1 Nfe3 Qhg2 Qf5 Kh2 Qf1 Qb5 Qa4 Qe5 Rh7 Qeb2 Rhd7 Q2g6 Rb3 Qgc2 Rdd3 Qa5 Rb6 Qab5 Nbc3 Rc1 a1Q Rg1 Q4a2 Rg4+ Kh5 Ra4 Nb1 Ra5 Kh4 Bb8 Ng2 Be5 Nge3 Bd4 Ned5 Bg1 N5e3 Bf2+
R2B1r2/KQ3p2/3b4/1bQ4B/RNb1N1r1/Bq2qnrq/1QbQk3/4q1B1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 a5 b4 h5 g6 d3 b6 d5+ Kb5 Kd4 c4 g2 b7 d2 b8B Ke3 g7 d4 e5 a4 c5 h4 c6 g3 c7 d3 Kb6 h3 b5 a3 e6 a2 e7 h2 e8Q+ Ne7 g8Q Be6 Qc6 Ra3 Nh3 g1Q Qg7 g2 Ng5 Bc4 Ne4 Qc8 Ba7 Ng6 Nbc3 Qh3 c8Q Bd6 Q8b7 Nh4 Be2 Rf8 Bh5 Nf3 Qc2 Rb3 Nd5+ Ke2+ Qc5 Qe3 Nb4 g1R Ba3 Rg4 Qgb2 Rc3 Rhf1 h1B Ka6 Bg2 Bb6 Bh1 Ka7 Bg2 Rg1 Bf1 Bd8 Rb3 b6 Bb5 Rc1 a1Q Rg3 Qa2 Ra1 Qb1 Qc2c3 Qc2 Q3d4 d1Q Rg1 d2 Ra2 Rf4 Rg8 Qe1 Qdd5 d1B Qg5 Rg4 Qgd5 Ne5 Qd2+ Kf3 Rh8 Bfc4 Qa8 Be7 b7 Qg5 b8B Re8 Bb6 Rd3 Ba5 Qb3 Qb7 Bc2 Bd6 Bf8 Bac7 Qh6 Be7 Qf4 Bh4 Qh6 Bf2 Bd6 Bg1 Rb8 Qb1 Re3 Bb2 Rc3 Ra4 Re8 Qdd4 Ke2 Ba3 Rg3 Qbb2 Nf3 Qdd5 Qhe3 Ba5 Re7 Ra8 Re8 Bd8 Rf8 Qd2+
Rq2B1qn/1QN1qb2/1B6/pKNq3R/1n1q1knR/3rQ3/1nn5/1BB4R b - - 0 1 illegal: No possible last move, all moves rejected
Nrqb1k1Q/1r2r1R1/2BpRBB1/2nR4/Q4K2/Nn3b2/6pn/1b2B1Rb b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Ke2 g5 c4 e5 f4 e4 h4 d6 f6 g3 f7+ Ke7 h5 b3 f5 e3 Kf3 d3 b6 b2 f6+ Kd7 c5 g2 c6+ Ke6 h6 d2 b7 g4+ Kf4 g3 h7 e2 c7 e1N Bd3 Bg7 f8B Kf7 Na3 b1B Rh6 Nc2 Nf3 g1R Nd4 Ke8 Be7 Re1 Ne6 Nd4 Qa4+ Nd7 b8R d1B Bd2 Ra7 Rb5 Bb7 c8B Bh1 Rd5 g2 Bb7 Qc8 Bc6 Nb3 Nc7+ Kf7 Bd8 Ndc5 Na8 Bf3 Bg6+ Kf8 f7 Rb7 Bf6 Re6 Be1 Ree7 Rhh5 Nh6 Rhg5 Rg8 h8Q Ng4 Rge5 Nh2 Re6 Bbe4 Bec3 Bc2 Rg1 Bb1 Be1 Bh6+ Bg5 Bg7 Bgh4 Bc3 Bf6 Ba5 Qh3 Qb8 Bg5 Kg7 f8R Qc7 Rff6 Rgb8 Rf7+ Kg8 Rh7 Kf8 Rg7 Qc8 Bf6 Bd8 Qh8#
R6K/nB1n4/2p3qQ/1qb4b/1R2p1qQ/1N2R1N1/k1nr1Br1/1B1BRn2 b - - 0 1 illegal: No possible last move
N1N1B1bq/p6N/B1K2B1Q/5n2/1NQqr1bp/RBb3r1/2q2n1k/5b1R b - - 0 1 legal: proof: b4 b5 f4 d5 a4 g5 h4 gxh4 c4 e5 cxd5 exf4 axb5 c5 Ra5 cxb4 Ra6 Qg5 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 Kg4 d6 Kg3 Kd5 f5 e4 h5 b6 b3 b7 h3 e5 f3 e6 h2 e7 f2 e8B h4 d7 f4 Nh3 b2 Qd2 f3 Nc3 b1Q Na2 Qb4 Rg1 h1Q Qh6 Qc3 Bg5 Be7 Ba6 f1B Bf6 f2 Nb4 Qc1 Ng5 Be2 Nh7 Qdc7 d8Q f1B Ra3+ Q7c3 Qc7+ Bd6 Qc4 Be5 Kc5 Kh2 g4 Qe4 d5 Q1c2 g5 Nd7+ Kc6 Nc5 b8N Bcg4 g6 Nd3 g7 Nf2 Nd7 Qed4 d6 Rd8 Nb6 Ne7+ Kb5 Qa1 g8B Nf5 d7 Rb8 Be6 Rg8 d8N Bef3 Nf7 Bd5 Nd6 Qab2 Bg6 Rbe8 Na8 Re7 Bef7 Rg7 Be8 Bg8 Nc8 Re6 Bgf7 Rg6 Bd8 Bh8 Bf6 Re4 Be6 Bf3 Qd3 Qd6 Bd4 Rg3 Bb3 Bg4 Qc4 Be5 Bc3 Qf6 Bd4 Qh8 Kc6 Bf6 Be3 Qa1 Bg5 Bb2 Be7 Qad1 Bg5 Bc3 Bf6 Qd4 Rh1+
Bn1N1kRK/2Q2q2/qq1N1Q2/n2b1r2/1RQ1Bp1R/1r3p1r/1r6/1R3nQ1 b - - 0 1 legal: proof: f4 e5 g4 b5 a4 c5 axb5 f5 d4 cxd4 g5 Be7 Be3 Bf6 gxf6 h6 Bf2 exf4 Bh4 Kf7 Bg5 hxg5 Na3 Kf8 Nb1 Ke8 Kd2 a5 Kd3 d5 c4 g4 b4 g5 h4 f3 e4 a4 c5 g3 e5 a3 c6 a2 b6 g2 b7 f4 h5 g4 h6 g3 c7 Nd7 b8R Ra3+ Nc3 Ra5 e6 Ra3 h7 Bb7 c8Q Nb6 f7+ Ke7 f8R Qe8 b5 Nd7 b6 Rb3 Ne2 g1Q Qc4 g2 Rh4 Qf7 Rb1 a1Q Rfc8 Ba8 b7 Qa6 Qe1 Rb2 Nb5 Qf2 Nd6 g1R Bh3 Rg5 Bf5 Qg1 Be4 Rf5 Qf2 Qgg6 Qg1 Qgf6 Ne8 Kf8 Rd8 Ne7 Nd6+ Qe8 Rdc8 Nc6 Rd8 Na5 Rdc8 Rg8 h8Q Qfd8 Qe5 Rg3 Qf6+ Qf7 e7+ Kg8 e8B Kf8 Nc3 Rh3 Ncb5 Qdb6 Na7 Rb3+ Kd2 d3 Nc6 Rb2+ Kc3 d2 Nd8 d1N+ Kd3 Ne3 Kc3 Nc5 Kd4 Nf1 Bc6 Rb3 Rc7 Rb2 Rbc8 Rb3 b8Q Rb2 Rb7 Nd7+ Kd3 d4 Qc7 Nb8 Bcd5 Qc6 Rb4 Qcb6 Re1 Bc6 Rb1 Bb5 Ba8 Bc6 Bd5 Bb7 Ke4 d3 Bc6 d2 Bd5 d1R Bc6 Rc5 Bd5 Rg2 Kf5 Rb2 Kg5 Rd4 Kh6 Rd3 Be4 Rf5 Qfg5 Qd5 Kh7 Rdb3 Qf6+ Qf7+ Kh8 Bd5 Qe5 Nd7 Ne6+ Ke7 Qec3 Rd2 Rg8 Rdb2 Q7c5 Nb8 Nd8 Qe8 Qc7+ Qd7 Rg6 Kf8 Qf6+ Qf7 Rg8#
3b1Bq1/8/NBQpN2b/BR1R2rk/1Q1b1r2/2Brq2b/p2Q4/2nK1Qq1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Nc6 Kd2 Nce7 Ke1 Nf5 gxf5 Qe7 Bg4 hxg4 Kf2 Qf6 Ke1 Qd8 c4 Kf7 b4 a5 h4 g5 e4 g3 b6 a4 h5 d6 b7 g2 b8B g4 e5 a3 e6+ Kf6 h6 Kg5 b5 d3 h7 a2 c5 g3 f6 Qe8 c6 Ra3 c7 Be7 f7 Rb3 f8B Nh6 b6 Bd8 e7 Ng4 b7 Ne5 Qd2 f2+ Kd1 Bh3 c8Q Rg8 h8B Kh5 Qc6 f3 Na3 Rg5 Ne2 g1B Bc7 g2 b8Q Qf7 Qbb4 Qg8 Ba5 f1R+ Qe1 f2 Be3 d2 Beb6 Rc3 Nc2 Nd3 Rb1 Nc1 Ned4 Rd3 Ne6 Bh2 Ba1 g1B Bc3 Bf4 Rh2 Be3 Rg2 Bd4 Rg4 Bg7 Rd4 Bh6 Qh1 Bh2 Qg1 Be5 Rd5 Bd4 Qh2 Rh1 Rb3 f1Q e8Q+ Qff7 Qd7 Qf4 Qc6 Qe3 Qf1 Rg1 Nc5 Rg3 Na6 Rf3 Rb2 Rf4 Qhg2 Bh8 Nd4 Be5 Ne6 Bd4 Qh2 Qh8 Qbc5 Qg3 Qfg2 Qe3 Rb5 Qf3+ Kc2 Qg8 Qb4 d1Q+ Kb2 Qdf1 Kc2 Qh1 Qf1 Qg1 Qd2 Qfe3 Kd1
1Q2R1bN/K1p1N1q1/3kQp2/1Qn2nb1/1R1nbNrn/4B1n1/1QB5/1N4b1 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 h4 g5 Rh2 a5 Rh3 Ra6 Rh1 Rg6 Rh2 g4 Rh1 Rg5 hxg5 fxg3 e4 Kd7 Ke2 h5 b4 c3 Kd3 h4 Kc4 g2 d4 h3 g6 a4 g7 a3 d5 f6 e5 c2 d6 a2 e6+ Ke8 b6 h2 Kb5 g3 e7 Kd7 b7 Ke6 e8Q+ Ne7 g8N Na6 b8Q Bh6 d7 Nc5 Qd3 Bg5 Be3 c1N Nh3 g1N Nf4+ Ke5 Qc2 g2 Bd3 Nce2 Qb2+ Kd6 Bc2 Nf3 Re1 Nf5 Ne7 g1B Qg8 Qf8 d8N h1B Nf7+ Kd7 Qb7 Rh4 Nh8 Rg4 Qc4 Qg7 Qe6+ Kd8 Ka5 Neg3 b5 N3h4 b6 Be4 Qbc6 Ba6 b7 Bc4 Qcb5 Bb3 Qec6 Bg8 Qe6 Nb3+ Ka6 Nbd4 Qf1 Ke8 Ka7 Kd8 Nd2 Ke8 Rab1 a1N Qfb5+ Kf8 Rbd1 Nab3 Nb1 Nc5 Rd3 Bc6 Rb3 Ke8 Rb4 Kd8 Qe4 Kd7 b8Q Kd6 Nc8+ Kd7 Bf2 Ndf3 Qec4 N3d4 Re8 Ndf3 Qe4 N3d4 Ne7 Kd6 Qe3 Ba8 Qeb3 Bc6 Be3 Be4 Qe6+
1B3k2/1B2Q2n/3RQnrq/B3QnnN/1Q2n3/rn3p1N/1p1r1R1B/n3K3 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 d5 g6 d3 Bh3 d2+ Ke2 hxg6 Bg2 g5 Bf1 g4 Bh3 e5 Kf1 d4 Kg2 d3 f3 e4 Kf1 Bc5 Kg2 Bd4 exd4 e3 Na3 Bf5 Nb1 Be4 fxe4 Qa5 Kg3 Na6 Bf1 Qd8 Kg2 Nb8 h4 f5 c4 g5 a4 b5 d5 g3 a5 e2 e5 b3 a6 g4 h5 b2 h6 b4 h7 b3 a7 f4 e6 Nc6 d6 Qc8 d7+ Kf8 d8B Nd4 c5 Nf5 c6 Qa6 c7 Nf6 c8Q Rg8 h8B Rg6 Nc3 b1N Rh6 b2 Qa4 d1N Nd5 d2 Nh3 Nf2 Qb4+ Qd6 Kg1 e1N Ba6 d1R Kf1 f3 Ndf4 N2e4 Nh5 Rd2 Bb7 Nc2 Ra6 Na1 Ke1 g2 e7+ Ke8 Rh7 g1N Qe6 g3 Ba5 g2 Rc6 Qf4 Rd6 Qh6 Bg7 Ng4 Be5 Ngf6 Nf2 Nh3 Bh2 Nhg5 Nh3 g1N Rg7 Rc2 Bcf4 Ngh7 Bfg3 Rd2 Be5 Rd8 a8Q Rb8 Qa7 Ra8 Qac5 Ra6 Bef4 Ra8 Qce5 Ra6 Nf2 Nh3 Bfg3 N3g5 Nh3 Rd3 Bf4 Nbd2 Bfg3 Ra3 Bf4 Ndb3 Bfg3 Nf7 Bf4 Rg2 Rg4 Rd2 Rg2 Nfg5 Rf2 Nf8 Qc8+ Kf7 e8Q+ Kg8 Q8e7 Rc6 Qcd7 N8h7 Be3 Ra6 Ba7 Rc6 Qe7e6+ Kf8 Bb8 Rc7 Qc6 Rg7 Qc7 Rg6 Qce7+
n1Rbr1rk/qRpR3R/3N3r/1Qn2Nn1/b3Q1pN/1q1B4/p5NK/3B4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 f5 d4 Kf7 h4 g5 d6 Kg7 b6 a5 e5 a4 d7 a3 h5 a2 b4 g2 Kf2 f4 b5 f3 Kg3 f2 h6+ Kh7 b7 Ra6 e6 Nc6 b8R Qe8 d8R Ra5 b6 Ra4 e7 Ne5 b7 Nf6 d5 Kg8 h7+ Kg7 d6 Qd7 e8B Nd5 Nh3 g1R+ Kh2 Qb5 d7 Bb4 Qc2 Nf7 Na3 Ra6 Nf4 Be7 Qe4 Nb6 Rb1 Na8 Nc4 Qb3 Ne3 Rg8 Nfg2 Kh8 Be2 Re1 Bd3 Rb6 Nf5 f1N+ Kg1 Nd2+ Kh2 Nc4 Rd1 Nb2 Rb1 Na4 Rb2 Nd6 Bh5 Nf7 Rd2 Rc6 Rf8 Nc5 d8N Be6 Rc8 Bd7 b8Q Re2 Nb7 Rh6 Nbd6 Ba4 Qb5 Bd8 Re8 Re3 Rb2 Re1 Re7 Re2 Rd7 g3+ Kg1 Re3 Bd1 g4 Nd4 Kg7 h8N Re2 Ng6 Re3 Qec6 Ree8 N6h4 Kh8 Nd4f5 Ng5 Qe4 Rh7 Ne1 g2 Kh2 Rh6 Qa5 Qc4 Rb7 Qe6 Qb5 Qb3 Kg3 g1Q+ Neg2 Qe1+ Kh2 Qa5 Qf4 Qb6 Qe4 Qa7 Kg1 Rf6 Nf3+ Rh6 Rh4 Rh5 Kh2 Rh7 Rh6 Na6 N3h4 Nc5 Re6 Rh5 Ree7 Rh6 Rh7+
n3nN2/4kB2/ppKQn1pB/3nB1Nb/1b6/NRB1Qq2/4r3/RNr1r3 b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nf6 g4 Ng8 b4 hxg4 b5 Rh3 b6 Rh8 a4 axb6 a5 Nh6 a6 bxa6 Bb2 Ng8 Ba3 Kd7 Bc1 Ke8 Ke2 c5 Ke3 e5 Ke4 c4 h4 c3 d4 c2 f4 g6 d6 g3 Kd5 g2 f6 e4 f5 e3 h5 e2 f7+ Kd7 f6 e1R h6 Re2 h7 Be7 f8N+ Ke8 d7+ Kf7 Bd2 c1N Na3 Nc6 Qb3 Bc5 Bc3 Nd3 Rh3 Bb4 Nf3 g1N Nd2 Nc5 Ndb1 Nf3 Bg2 Qe7 d8Q Bg4 Qb8 Qb7 Bf1 Re1 Bc4 Ng5 Kd6+ Nge6 d5 Nc7 Be5 Nd4 Qe3 Ne7 Rg3 Rg8 h8B N5e6+ Kd7 Rg7 d6 Qf3 Nh7 Ne8 Ng5+ Kf8 f7 Nb5 Ba2 Nd5 Kc6 Nbc7 d7 Ra7 d8B Bh5 Bdf6 Rg8 Bfg7+ Ke7 f8N Na8 Bh6 Rg7 Bc4 Rf7 Bc3 Rf4 Bhe5 Re4 Rg2 Rd7 Rb2 Re2 Rb3 Re1 Qd4 R4e2 Qg1 Rd8 Qe3 Rc8+ Kb7 N6g7 Bcd4 Nc3+ Bd5 Rc6 Bf7 Nd5 Bb2 Rcc2 Bbc3 Ne6 Kc6 Rcc1 Qd6+
b2BKNQn/3nBBbp/2R1Rq2/1NQr1kpR/2n2R2/bp4n1/6B1/5r2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 g4 g5 h4 Bxg4 e4 Bc8 h5 f5 h6 Bxh6 exf5 Bf8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 f4 c5 d4 b5 a4 b3 d6 b2 Kd5 e4 d7 e3 a5 b4 a6 e2 a7 e1N Qc2 c4 Na3 b1N Ne2 c3 Nb5 b3 Rh5 Na3 Bg2 Nc4 Ra6+ Nc6 Ba3 Na5 Be7+ Kf7 Kd6 Ne5 f6 Nac6 f5 Qb6 d8B N1f3 d5 Bg7 Nf4 Nh6 Ng6 Nh2 Nf8 Nd7 Qc1 Rb8 a8B c2 Qg1 c1B Qc5 Nf1 Bb7 Qa7 Ba8 Na5 Rc6 Qa6 Kc7 Bd2 d6 Ng3 Bb7 Bb4 Ba8 Nb6 d7 Ba3 Re6 Rg8 Bad5 Bb7 Kd6 Ba8 Bc4 Bh8 Kc7 Rg6 Bcd5 Bg7 Kd6 Kg8 f7+ Kh8 Kc7 Nac4 Rc6 Re6 f6 Re1 Ne6 Qa5 f8R+ Ng8 f7 Qd2 Rh1 Qf2 Rh5 Na5 Kd6 Bgb2 Bc7 Rd8 Nf4 Kg7 Ne6+ Kg6 Bc4 Bg7 Bcd5 Rb8 d8Q Nh6 Qc8 Rg1 Rd8 Rb7 f8R Rf1 Rf3 Qb2 Rf4 Qf6 Rd7 Rb8 Qg8 Rd8 Bc4 Na4 Bb6 Nf7+ Kc7 Nh8 Rdd6 Nf5 Bcd5 Nc4 Ba5 Ng3 Bb6 Rb8 Kd7 Rb7+ Ke8 Rd7 Bbd8 Nab6 Re4 Kf5 Nf8 Ne5 Bf7 Nc4 Re6 Rd5 Rg4 Nd7 Rf4+
k2q1R1R/N2p1p2/2rNn2B/b3Q1q1/rR1b1QbR/2N1r3/1pB3qN/1K6 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 d4 c5 f4 cxd4 a4 e5 Bg2 exf4 Bh3 Nc6 Bf1 Na7 Qd2 axb4 Qd1 b3 Nf3 b4 Ng1 Nb5 axb5 Ra6 Kf2 Ra3 Ke1 Ra8 Kd2 g5 c4 g4 e4 d3 h4 f3 e5 b2 e6 f2 c5 b3 b6 g3 c6 g2 b7 Ke7 b8R Kd6 e7 Kc7 h6 Bb7 h5 Ra4 h7 Nh6 Nc3 b1Q Nf3 g1B Rh4 b2 Nh2 Nf5 h6 Nd4 Qg4 Ne6 e8N+ Kb6 c7 Ka7 Kd1 d2 Bd3 Bb4 Nd6 Re8 h8Q Ba5 h7 Be4 Qe5 Bf5 Rb5 Ka8 h8R Re7 c8N f1Q+ Qe1 Bd4 Bc2 Qg2 Na7 Re8 Qf4 Bg4+ Qe2 Qa2 Rb4 Qad5 Ra2 Q5g5 Ra3 Bh3 Qee5 Bf5 Bd3 Re7 Kc2 d1R+ Kb1 Bg4 Bc2 Re1 Rf8 Re3 Rab3 Re8 Rhh8 Qb8 Rc4 Rc8 Rbb4 Rc6 Rh4 Rb6 Rcc8 Rc6 Rce8 Qc8 Rfh8 Qb8 Ref8 Qbd8 Rfg8 Rh3 Rf8 Qf6 Qf3 Rg3 Bh6 Qg5 Qfe4 Re3 Q4f4
4K1BN/4R1q1/p1k1r1p1/1q1b4/RQ3qBn/b2nQ2q/p2R3N/R2qQQ2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 Ra3 exf4 Ra2 d5 cxd5 f3 Ra1 f4 b3 h6 Ba3 a6 Bb4 Nd7 Be7 Nb8 Bg5 hxg5 Ra3 Rh6 Ra1 Rf6 Bg2 Rf5 gxf5 Ra7 Bf1 Rb7 Nh3 Rb6 Ng1 Rh6 Nh3 Rh7 Ng1 Rh8 Ra2 Kd7 Kf2 c5 d4 g6 h4 g4 e4 c4 h5 c3 b4 a3 h6 c2 h7 c1Q d6 Qc6 b5 Qcb6 e5 Qb7 f6 Nc6 d5 Qa5 e6+ Ke8 b6 Nge7 d7+ Kd8 f7 Qa7 Bc4 Ng8 Nc3 Nb8 Nb5 Qa8 b7 Bg7 Nd6 Kc7 d8R Qb4 f8Q Bf6 e7 Bg7 e8B Bb2 Nf7 Ne7 Bd7 Nf5 Re8 Nc6 d6+ Kb6 b8Q+ Bb7 Rh4 Ne5 Qe1 Qa7 Ra1 a2 Qe7 Rg8 h8Q Ba3 Qhf6 Rf8 Nh8 Qc5+ Kf1 f2 Ke2 f1Q+ Kd2 f3 Kc3 f2 Nf3 Qg2 Nh2 f1Q Kb3 Qd2 Bg8 Qh3+ Ka4 Qg5 Bde6 Qcc1 d7 Qce3 d8R g3 Rd2 g2 Qg3 g1Q Rg4 Bb2 Kb4 Qd1 Qe1 Nh4 Qff1 Rf6 Re4 Qef3 Bg4 Nd3+ Kc4 Ba3 Qbe5 Bc8 Kd5 Qff4 Ra4 Re6 Qf8 Qg7 Qb4+ Ka7 Re7+ Ka8 Qd6 Qgf5 Kc6 Bb7+ Kd7 Be4 Qdd4 Kb7 Ke8+ Kc6 Qa5 Qb5 Qde3 Bd5 Qb4
3N2n1/2pBnk2/1RN1r1b1/2N4p/1KN2qQq/1p2q1r1/1Q2QQq1/BR5q b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 a4 h5 d4 b5 Kd2 f5 e4 f4 a5 f3 d6 f2 d5 b3 Kc3 b2 e5 g2 a6 g3 e6 Bd7 a7 Nh6 e7 Qc8 g6 Qb7 g7 Ng8 Qb3 Bg4 d7+ Kf7 d8N+ Kf6 e8Q Ne7 g8Q Nbc6 d6 Qc8 d7 Ne5 Na3 b1Q Kb4 Nf7 Nb7 Rh6 d8N Bf5 Nc4 Bg6 Nc6 Qd8 Nh3 g1Q Nf4 g2 Ra6 Qa1 Be2 f1Q Nd3 Qe3 Bg4 g1Q Rb6 Qgg2 Ndc5 Qff4 Bd7 Rc8 a8Q Qb1 Ka5 b4 Qa7 Ra8 Qa3 b3 Kb4 Qbe4 Rf1 Qh1 Qa2 Qeg2 Q7a3 Ra6 Qf2 Rh7 Bd2 Nh6 Rb1 Rg7 Bc1 Be4 Qaa2 Rg3 Qg4 Bg6 Qae2 Kg7 Qh8+ Kf7 Bb2 Nhg8 Bf6 Qec1 Ba1 Qe3 Bf5 Qdd4 Bc8 Qdf6 Bd7 Qfh4 Qhb2 Ra5 Na4 Re5 Nac5 Re6 Nbd8+
kR1R3n/nb1R4/1Rn5/3QbK1N/2qqB1p1/b4p1Q/B1BpBb1N/5r2 b - - 0 1 illegal: No possible last move, all moves rejected
4N1K1/rp1RB1QB/2p1RQN1/n1bRq1Rp/k1rn3N/1p1r4/5rb1/5N2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 e5 Rh3 exd4 Rh2 Nc6 Rh1 Nb8 Ke2 Kd7 Kf3 h5 Ke4 h3 Ke5 c6 a4 b3 g4 d3 f4 h2 f6 d2 g5 Ne7 a5 Nf5 a6 Rh6 a7 Bb4 f7 Ba3 f8N+ Kc7 g6 Kb6 g7 Ka5 g8R Ng7 d6 Qd7 f5 Na6 f6 Ka4 f7 Rb8 a8N Nf5 Qg4+ Nd4 Ng6 d1R Kf6 Qe8 Kg7 Re1 f8Q Re4 d7 Ka5 d8R Bf5 Nf3 Nc5 Rd7 Qe5+ Qf6 Na4 Nfh4 Rd8 Nc7 Nb2 Nd2 Ka4 Ne8 Nc4 Bd3 Na5 Re1 h1R Nf1 Rf4 Rb1 Bc5 Ba3 Be4 Rbd1 Bg2 Kf7 Rh3 Rg7 Rc8 Kg8 Ra8 Bc2 Rd3 Re2 Qf5 Re6 Ra7 Rd5 Re4 Rgd7 Qf4 Rg5 Qe5 Bb4 Rh7 Qg3 Rf7 Ba3 Bb6 Be7 Bc5 Qg4 Ne2 Bb1 Rb4 Qd4 Rc4 Qg7 Rf2 Bc2 Qd6 Qdf6 Qe5 Rd2 Rdc3 R2d5 Nd4 Nf8 Rh3 Bh7 Rd3 Nfg6
Q5r1/b3r2p/1pQqQ1R1/p1bB3N/1N2n3/2BpR2K/1BQ1r3/bb2B2k b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 Ba6 c5 Bf1 cxd4 a5 b6 a6 Qc7 Ra2 Qc6 Ra1 Qb7 axb7 a5 b4 Bh6 b5 Na6 bxa6 Bf8 b8B Kf7 c4 Ke6 g4 d5 f4 h3 Kf2 e3+ Kg3 d3 c5 e2 a7 h2 c6 e1B+ Kh3 d4 g5 Kd5+ f5 Ke4 c7 e5 g6 d2 g7 Bc5 Ra3 Bg3 Bb2 Nf6 Ne2 Rg8 Nbc3+ Kf3 Qc2 d1Q Rg1 e4 Nd5+ e3 Nef4 Ne4 Bc4 Be6 Bb3 e2 c8Q e1B Nh5 Bc3 Qc6 Bc8 Be5 h1R+ Qh2 Re8 g8Q Re7 Qge6 Bf4 Bf6 Bb8 Rg6 Re1 Nb4 Re2 Bd5 Ba6 Bh8 Bd3 f6 Bb1 f7 Qd2 f8B d3 Ra2 Qf4 Bh6 Qd6 Bd2 Bg7 Be1 Bgd4 Bc1 Ba1 Bcb2 Bc7 Bhg7 Rg8 a8Q Bb8 Bge5 Ba7 B5c3 Re3 Qc2 Re2 Bed2 Rg2 Ra4 Kf2 Be1+ Kg1 Na2 Kh1 Rb4 Nf6 Re4 Re2 Re3+ Ne4 Nb4
1R3Rn1/qn1p1p1n/2b4B/3r2Q1/N2p1QQ1/n4KQ1/q2bBp2/B1Bk3N b - - 0 1 legal: proof: f4 a5 b4 b5 d4 g5 h4 gxh4 a4 e5 axb5 exf4 c4 c5 b6 cxd4 b7 a4 c5 Ra6 b5 Rb6 cxb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 g4 Kf6 e4 Ke5 g5 h5 g6 h3 g7 h2 Qe1 f3 Nc3 a3 Bb2 Kf4 e5 h4 e6 a2 e7 h3 e8Q Qc7 Q8e2 Bb4 Rb1 a1N Na4 Nc2 Ba1 Na6 b8B Na3 b7 Nc5 b6 Bd2 Qe3+ Kg4 Ne2 Rh5 Ng3 Rd5 Qe7 Kf4 Be2 Kg4 Rg1 h1Q Qc1 h2 Qg5+ Kh3 Rg2 Qd1 Rg1 Qb3 Nh1 Qa2 Rb2 Qd8 Bg3 Qc7 b8B Qa7 Bbf4 Bb7 Qc3 Bc6 b7 Rd6 b8Q Nb7 Be3 Rd5 Bh4 Qb6 Qbf4 Qa7 Kf1 f2 Qb3 Nf6 g8Q Nh7 Qc3 Nd8 Rb8 Nb7 Ng3 h1N Qgg4+ Kh2 Bg5 Qa8 Bh6 Qa7 Qg4g5 Kh3 Bb5 Kh2 Ke2 Kh3 Kf3 Kh2 Nh5+ Ng3 Be2 Kh3 Rc1 Nf5 Ng3 Ne7 Rb1 Kh2 Rf8 Kh3 Q8g6 Ng8 Rb6 Kh2 Qgg4 Kg1 Q6g5 Be1 Bc1 Bd2 Qce3 Nc4 Bd1 Na3 Nh1+ Kf1 Be2+ Ke1 Qfg3 Qb2 Qef4 Qa2 Bb5 Kd1 Bf1 Nc5 Rbb8 Nb7 Be2+
2NR2bR/2B5/1b1bn3/1r1r2N1/2Q1N1K1/Q1R1NpRB/bp1p2bp/1n4k1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 h3 g5 gxf5 g4 h4 Qg5 hxg5 exf4 Kf2 Ke7 e4 Kd6 a4 Kc5 c4 b5 f6 h5 f7 d5 e5 d3 a5 Kd4 g6 d2 g7 f3 Kg3 Ke3 c5 b3 a6 b2 e6 h4+ Kh2 Kf2 c6 b4 e7 d4 e8Q b3 c7 d3 a7 h3 Ra2 Na6 Qa4 Ne7 g8N Nd5 Nf6 Rh5 Qc2 Nc3 Bg2 Rb5 Na3 b1B Nc4 b2 Ra3 Ba2 Ne3 Nb1 Rc3 Nc5 Qa3 Ne6 Qca4 d1B Qc4 Bc5 f8R Bdb3 Rd8 Rab8 a8R Bd6+ Qf4 Bd7 c8N Rd5 Bf1 Rbb5 Ne4+ Ke1 Kg3 h2 Kh4 g3 Kg4 g2 Nh3 g1B Nhg5 Bc4 Bh3 Bcb3 Nf1 Bb6 Rg1 Ke2 Be3 d2 Rg3 Bc4 Bc5 Ke1 Ne3 Ke2 Nf6 Kf2 Qd4 Bf1 Qc4 Bg2 Nfe4+ Kg1 Bb4 Be8 Ba5 Bf7 Rh8 Bg8 Rb8 Bbc5 Bc7 Bd4 Na7 B4c5 Rd8 Bb6 Nc8
q1r3R1/2nB3Q/p2N1Kpp/2B2N2/3Rbp1B/rQ2rB2/2k4p/1rrR1R2 b - - 0 1 illegal: No proof kernel
B2q4/1RB1r1Rr/2N5/Q1nqr2r/1B6/b1RB1kr1/1n1q1R2/bKNnQb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 g5 a5 g6 f3 b6 a4 b7 h3 g7 f2 c5 h4 c6 a3 c7 d3+ Kb3 h2 Ka2 f4 b5 f3 b6 d2 Bc4 Kf4 e5 f1R e6 h3 e7 f2 e8R d4 Bb5 d3 Ba6 Ne7 g8B Ng6 Nf3 Re1 Qc2 f1R Rg1 h1Q Re3 d1Q Qf2 h2 Nc3 d2 Bd5 Nd7 b8B Nc5 b7 Ne5 Bd3 Rh5 Rg7 Rg1 Kb1 Nc4 Ra2 Bh3 c8Q+ Re5 Qe2 Bf1 Qc7 Ra5 Nd4 Nb2 Nc6 Rg3 Bg2 Ra7 Qa5 Be7 Bd5 Qf3 Bd6 h1R b8R Rh5 Rb7 Qf2 B5e4 Qb3 Bd5 d1N Bd2 Qh2 Bf3 Qd5 Bc7 Bd6 Qf2 Re2 Qe1 Qf2 Bh1 Qfg2 Re4+ Kf3 Rc4 R2e3 Ne2 Re7 Rgg4 R3e5 Bb4 Reh7 Rc3 Bf8 Ra1 Be7 Rg7 a2+ Kc2 Bd6 Rc1 a1B Kb1 Be7 R1c2 Bd6 Nc1 Be7 Rb5 Rb7 Bd6 Rc7 Rb7 Bf8 Re2 Rce7 Bc7 Qc4 Rg8 Nca4 Ra7 Rd7 Be7 Kf4 Nd4 Qh2 Bc6 Qd5 Ba8 Qhg2 Nc6 Kf3 Bc5 Bd6 Rb7 Rde7 Rg7 Qh2 B5b6 Ba3 Bc5 Qf2 Bb4 Nc5 Rd2 Qe3 Rh2 Qd2 Rf2+
1KnBk3/Q3q1RB/5B2/2q2Brb/R1nQnR1b/4q3/rn2nnR1/1NN1n3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Bg4 b7 Bh5 c7 Nc6 c8B Ne5+ Kd2 d3 Ke3 d2 Kf4 d4 b8R d3 b6 Nc4 Qc2 d1N b7 d2 Bg2 f1Q Qh7 f2 Bg4 Qd3 Bd5 f1N Bb2 Ng3 Bf5 Nf2 Bf6 d1N Ne2 Nfe4 Nc1 Ndb2 Rg1 h1Q Rg2 h2 Rc8 Qe1 b8B h1N Bc7 Qa5 Rb8 Qb3 Rb4 Nhf2 Bb6 Qd7 Bd8 Qc5 Bc6 Ra6 Ba4 Qc3 Bc2 Qa3 Bc3 Rg6 Bf6 Rg5 Ra4 Kf7 e8R Ne7 Ra7 Nc8 Ra4 Be7 Rg8 Na5 Rc4 Qce3+ Ke5 Ne2 Rb4 Qda7 Kd5 Nac4 Kc6 Qac5+ Kb7 Bd6 Ra4 Bg3 Ka8 Bh4 Kb8 N4b6 Rd4 N6c4 Bd3 Ned6 Rf4 Nde4 Re8 Rf8 Re5 Qe7 g8Q+ Ke8 Qd5 Qac5 Qd4 Rfg8 Re6 Rh8 Ra6 Rf8 Ra4 Rf7 Nc3 Rf8 Rb1 a1N Qg7 Nc2 Qh7 Qe6 Qa7 Qee7 Rba1 Rh8 Nb1 Ne1 R1a3 Rh6 Rb3 Rhg6 Rb7 Rh6 Bg7 Rb6 Bf6 Rb3 Bh7 Ra3 Rd7 Ra2 Rc7 Ned6 Bdf5 Nde4 Rb7 Qe6 Rf7 Qee7 Rg7
1NB1q1q1/2Knq3/1QR3b1/b1Q5/1n1b4/QnR2QNR/1RnB4/1rn1n1kr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 g4 d5 e4 a5 c4 h5 b6 h3 b7 d3 b3 h4 g5 h2 g6 f3 g7 f2 Bd2 a4 Be2 f1N Qe1 d4 Na3 h3 Qb1 f4 Qb2 f3 Rc1 f2 Be3 d2 Qa1 d1N Qa2 Ng3 Nc2 f1N Bg4 a3 Bd2 d3 Ra1 Qe8+ Be6 Ne7 g8R Nd5 Ne3 Nb2 Nf5 Ne2 Rg3 Nb4 Nf3 Nc1 N3d4 Be7 Rf3 Bd8 Nc6 Ba5 Ng3 Ra6 Rb1 Rb6 Qa1 a2 Re3 Nd1 Rb2 Nf2 Rc2 Rh7 Qb2 Qg8 Qa3 a1B+ Rc3 Rh6 Rf3 Bd7 Rf6 Be8 Bc8 Bg6 Re6 Nd1 Rf6 Nde3 Rd6 Ng2 Re6 Na6 b8Q Ne1 Qb7 Rb5 Nb8 Rh8 Qf7 Rb7 Rb6 Rh7 Ke6 Kd4 Kd6 Nc5 e5 Nd7 e6 Rh6 e7 Rh4 Rg1 h1Q e8R h2 c5 Qe4 c6 h1Q c7 Qh3 Rd8 Qee8 Qf3 Qh2 Rb5 Qhe2 Rh1 Rh8 Rhh5 Rh7 Rhc5 Rh1 Rc6 Rb6 Rh5 Q2e4 Rh3 Qh4 Bg5 d2 Bf4 d1N Bd2 Nf8 Rd7 Nde3 Re7 N3c2 Re2 Nd7 Rg2 Nd5 b4 Qg5 b5 Ndb4 Re2 Rb7 b6 Qgd8 Bf4 Nd2 Rg2 Ndb3 Bd2 Ra7 b7 Ra6 Rf2 Rb6 Na6 Qg5 b8Q Qge3 Qa7 Qg5 Nb8 Bb2 Bb7 Qgd8 c8Q Qde7+ Kc7 Ba1 R3c5 Rb5+ Qb6 Bb2 Qf8 Kd3 Qf7 Bd4 Qf3+ Ne3 Re6 Nba2 Bc3 Nd2 Kc6 Rb1 Re2 Ndb3 Rb2 Bf6 Qcc7 Bd4 Bc8 Nb4+ Kb7 Rh2 Bd2 Rh1 Qf8 N3c2 Qe5 Qf6 Kc7 Qh4 Rec6 Qhe7 Ne4+ Ke2 Rcc3 Q7f7 Qh5+ Kf1 Qfc5 Kg1 Qf3 Qfe7 Ng3
k3B3/bn1bb2q/1BRbRBNq/5r2/1b2Q2R/2b5/1rR4B/1Qr1nnKN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 h4 a5 b4 e5 f4 g5 Kf2 d5 c4 Kd7 c5 Kc7 h5 Kb7 f5 e3+ Kg2 d3 f6 d4 b6 e2 h6 e1B b5 a4 f7 g3 h7 a3 Qe2 e4 Ra2 g4 Rh4 e3 Bd2 Qd6 Rh3 Nd7 Rh6 Rb8 c6+ Ka8 c7 Ne7 Bc1 d2 Qd1 d3 Qc2 d1R Rg6 d2 Rh6 e2 Nh3 Nc5 Nf4 Nd5 Rh4 Be7 Nc3 Rf8 h8B Qh6 Ne4 Ne3+ Kh1 g2+ Kg1 Bg3 Nf2 e1N Nh1 Rb7 Bcb2 Rc1 Bbd4 Bf5 Rb2 a2 c8R+ Rb8 Qc4 a1B Qe6 Qh7 Rc2 d1Q Ng6 Bgd6 Qe5 Qd2 b7+ Ka7 Qe6 Bc3 Qe4 Be6 Bc4 Nf1 Bd5 Qg5 Bc6 Qgh6 Be8 Bd7 Rc6 Rg8 Nf4 Rg5 f8R Rf5 Rf6 Q6g6 Re6 Qgh6 Kf2 g1B+ Ke2 g3 Bhf6 g2 b6+ Ka6 Ng6 Bf2 Be3 g1B Bed4 Ra8 b8Q Ra7 Qc8+ Rb7 Qc7 Rb8 b7+ Ka7 Qc8 Bc7 Be3 Bfg3 Bf2 B7a5 Qc7 Bgd6 Be3 Ra8 Qb6+ Kb8 Qb3 Bab4 Qb1 Ra2 Bed4 Rb2 Bf2 Ka7 b8B+ Ka8 Be3 Nb7 Bea7 Bdc5 Bh2 Bcd6 Bc5 Be3 Ba7 Bef4 Kf2 Bb8 Bb6 Ba7 Kg1 Bc7 Rd2 Bcd6 Rc2
bK3nNQ/1N4Q1/1n2RnBB/qk6/N1N1r2b/1B2B3/4n2r/qn1qbRn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 e4 f5 g4 a4 b4 a3 c4 d3 c5 d2 g5 f3 b6 Kc6 b7 h3 g6 h4 g7 f2 Bb2 d4 Nc3 a2 Bc1 h2 Na4 f4 Be2 f1N Ba6 f3 Qe2 d1Q Qc4 f2 Be3 d3 Nb2 d2 Na4 h3 Qc3 Nf6 g8N Qa5 Bc4 Ng3 Bb3 f1N Nf3 Kb5 c6 Be7 c7 Nbd7+ Ke6 Rb8 Ne5 Ne2 Nc4 Ng1 e5 Rh4 Rc1 a1B Rb1 Ra8 b8B Bb7 c8N Re4 Bh6 Bc6 Ba7 Ne3 Bb6 Bd8 Kd6 Nf8 e6 Ned5 Bbe3 Nb6 e7 Ra7 e8B Rh7 Bh5 Ba8 Bg6 Rh8 Qd4 Bc3 Rc1 Be7+ Kc7 Rh7 Rc2 Qa1 Kb8 d1N Ra2 Be1 Re2 Nc3 Qe5+ Ncd5 Qg3 Nc3 Qg4 Nb1 N8d6+ Ka6 Nb7 Kb5 Ra2 Nh5 Rc2 B7h4 Re2 Nf6 Qg2 Nf3 Rg1 h1N Rf1 h2 Qg3 Ng1 Qc7 Ng3 Qg7 Kc6 b5+ Kd5 Rc2 h1Q Rcf2 N3e2 Rf3 Nc8 b6 Kc6 Rf5 Qf3 Re5 Qh5 Re6+ Kb5 Nd8 Qf3 b7 Nb6 Kc7 Na3 b8Q Nb1 Nb7 Qh5 Qc8 Qd5 Kb8 Qd1 Bhf4 Bg5 Qd8 Rh2 Qd4 Bgh4 Bh6 Rf2 Qh8 Rh2 Qd7+ Kb4 Qe7+ Kb5 Qeg7
Qr3qbb/BN1nRq2/1bb3B1/4Rq2/q1bk4/NB5q/1R1K1Br1/3n1RQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Kc5 g5 f5 g6 h5 g7 d5 b3 a5 b6 a4 e5 f3 b7 a3 e6 f2+ Ke2 d3+ Ke3 d4+ Kd2 a2 e7 f4 e8R h3 Bb2 h4 Qc2 f3 Bc3 h2 Kc1 d2+ Kd1 h3 Re3 Nf6 g8B Be6 Qg6 Ne4 Qg7 Nd7 Bd3 f1B b8B f2 Nf3 Bd5 Be6 Rg8 Qg1 Rg2 Nh4 Qe7 Ba5 Qf7 Nf5 Nc3+ Kc2 d1B+ Kd2 B1f3 Nd6 Nd1 Bg6 d3 b4+ Kd4 Nb7 Bc5 b5 Bb6 Ba7 Rb8 c5 B1e2 c6 f1Q c7 Bb3 c8Q Bc6 Bb4 Q1f5 Na3 Bc4 Rb1 a1B Rb2 Bef3+ Qf2 Bfd5 Rf1 h1Q Bd6 h2 Bg3 Qg1 Qe8 h1Q Qf8 Bc5 b6 Qhh3 Bh4 Qgh2 Qg8 Qd6 Qd8 Rg4 Qg1 Qdf8 Bf2 Rg2 Qe8 Ba6 Qc8 Ba2 Bb3 Bab5 Nd6 Bc4 b7 Bb6 Qe8 Rc8 b8R Rd8 Ne4 Rc8 Rb7 Rb8 Kc1 d2+ Kc2 Nc5 Re7 Nd7 Qc8 Qb5 Qb7 Qbf5 Qa8 Nc3 Re5 B4d5 Rbb1 Q7g8 Ba4 Bac4 Qb7 Qgg7 Rb5 Bg8 Qa8 Qgf7 Re7 Bb2 Rb3 Kd5 Rb4 Nb1 Kd1 Bh8 Nd6 Kc5 Rb2 Kd4 Ne4 Nc3+ Kc2 Qe5 Nc5 Qeh5 Nb7 Qb5 Bb3 Qa4 Ra2 d1Q+ Kb2 Qdf3 Kc2 Q3f6 Kd2 Qff5 Rb2 Nd1 R3e5+
n1RN2qn/2b2q2/1R2R1b1/1nBQr3/1bn1n1K1/b1b1B3/1NBQrR2/5B1k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 c5 g5 h5 a5 c6 g3+ Kf3 g4+ Ke2 d3+ Kd2 g2 h6 d4 b6 g3 h7 f3 b7 Kf4 b5 f2 c7 a4 b6 a3 e5 a2 e6 Nd7 b8R Ra5 e7 Nh6 e8Q Nf7 b7 Ba3 Nf3 g1B Ne5 g2 Bb2 Kg3 Qe6 f4 Qe1 f3 Qe2 Re8 h8B Nb6 Qd5 Na8 Nc4 Bf5 c8B Bg6 Ne3 Bh2 Qb5 g1B Bg7 Nh8 Qd7 Rae5 Bh6 Qg5 Kd1 d2 Nc3 Qd8 Rb1 a1B Na2 Bb4 Bc1 Bac3 Nc4 R8e7 Be3 Qg8 Ba3 Re8 Bh3 f1N Nb2 f2 Qd5 R8e7 Qe1 Re8 Ke2 d1N Bce6 Nd2 Bef5 Nc4 Qd2 f1N Rc8 d3+ Ke1 R8e7 b8R R7e6 Rb6 Re7 Qd7 Kf3 Qb5 Ng3 Re6 Ne4 Qd5 Kg3 Bf1 Re8 Bg5 Bgc5 Rg1+ Kf3 Rg2 Bf4 Rf2+ Kg3 Bg2 Kh2 Bf1+ Kh1 Bh6 Bg3 Be3 Be7 Nc1 Bed6 Nb3 Bc7 Na5 Bh4 Nb7 Bhe7 Nd8 Bec5 Na4 Re7 Bb2 Ba3 Ba1 B5b4 Nb2 Bd4 Rf6 Rg7 Rf3 Rf7 Na4 Ncb2 Qc6 Bbc5 Qd6 Ndc3 Qc2 Ng3 Kf2 d2 Be4 d1Q Qd2 Qb3 Bc2 Qe6 Qd5 Nc4 Rb6 Nb5 Bb2 Qe7 Rfe6 Bcb4 Rf5+ Ne4+ Kf3 Rh7 Kg4 Rh2 Rf4 Re2 Rf2 Qef8 Bc3 Qff7 Nb2 Be7 Bb4 Bc3 Bbc5 Bf8 Bcd4 Bfb4 Bc5
Q1Qb1QB1/r3q2n/Q2b1rNR/4brq1/1NK4B/2RB1q2/1Bqkb3/b2n4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 h4 Kf5 b4 g5 c4 d5 h5 a5 b6 g3 h6 f3 h7 a4 b5 f2 b7 g4 e3 g2 b6 a3 c5 g3 c6 a2 c7 Nc6 b8Q Ra7 b7 Nb4+ Ke2 Ke4 Qe1 f5 Rh4+ f4 Rh6 d3+ Kd2 d4 Rb6 f3 Ne2 g1B Bb2 g2 Ra6 Qe7 Qa8 Nd5 b8B Bh2 Bc1 g1B Qc6 Be5 Qc4 Nc3 Bb2 Nf6 Na3 Nd1 Nf4 Bg4 Rc1 a1B c8Q Bh5 Be2 f1Q Nc2 f2 Nb4 Qg2 Qf1 Qg5 Ng6 Bf3 Qg2 f1R Rc3 Rg8 h8Q Nh7 Qf2 Bg4 Qff6 Rf5 Rd6 Rg7 Q4a6 Rf7 Bc7 Bf2 Bd8 Bh4 Qfg7 R7f6 Qf7 Bg7 Qff8 Beg3 Bf1 Be2 Qhg8 Kf3 Qd5+ Kf2 Qda8 Bh8 Rb6 Bd6 Rbc6 Qg3 e4 Qg5+ Nf4 Kf3 e5 Ke4 e6 Kf3 Kc1 Ke3 Ng6 Bg7 Kb1 Kd2 Ka2 Ke1 Kb3 d2 Rb6 d3 Qd5 Nf2 Qda8 d1Q+ Kc4 Qc2 Rc6 Nd1 Rb6 Kd2 Rc6 Qb7 e7 Bh8 e8B Qe7 Bd7 Rf7 Bb6 Qe6+ Nd5 Qg4+ Bd4 Bb8 Bc1+ Ke1 Qa4 Bhe5 Rb6 Bd8 Qaa6 Nf2 Bb2 Qg5 Qa2 Bd1 Nf4 d2 Qaa6 Qee7 Rh6 Bbd6 Be6 R7f6 Bd3 Bh5 Bg8 d1Q Bb6 Kd2 Ng6 Qdg4+ Bd4 Nd1 Nb4 Qg2 Bf2 Be2 Bg3 Qf3 Bh4
b4qQr/KR2r1r1/QB3qn1/nN4R1/rn1B2r1/1n3R1b/B1Nbk1R1/7B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 b4 h5 b6 a5 Kb5 f5 c4 d5 e3 f3 g5 f2 b7 d3 g6 h3 g7 d4 c5 h4 c6 f4 c7 d2 Kb6 d3 b5 a4 Na3 h2 Bg2+ f3 Bb2 f1N Nh3 Ne7 g8Q Ng6 Nc2 a3 Qh7 a2 Rc1 a1N Ng1 h3 Ne2 Bh6 Ned4 Na6 b8B Qf8 Qe2 d1R Qg8 d2 Ba7 Nb4 Rg1 Nb3 Bh1 Re1 Rg2 d1R Rb1 Bf5 c8R f2 Rc3 Nfd2 Rc5 Bc8 Rcg5 f1Q Ra1 Q1f5 Ra3 Na5 Bc3 Ndb3 Ba1 Ke5 e4 Kf4 e5 Q5f6+ e6 Rd3 Bc3 Rg3 Qc4 Ree3 Qc6 Re5 e7 Rg4 e8B Re7 Bf7 Rh7 Be6 Rhg7 Qb7 Bd7 Qa6 Ke4 Be1 Kd3 Bf2 Nac6 Kb7 Kd2 b6 Nca5+ Kc7 Kd1 Nb5 Ke2 b7 Bc8+ Kb6 Bd7 Rf5 Bd2 b8R Bc8 Rb7 Bd7 Rg1 Bc8 Bd4 Bd7 Bg2 h1B Rg5 h2 Bd5 Bg2 Bc6 Bh3 Bh1 Bc6 Bed5 Nc1 Ba2 Ncb3 Be4 h1R Rg3 Ra1 Bh1 Nc1 Rad3 Ncb3 Rdf3 Rae8 Bb8 Bd5+ Ka7 Bc6 Bc7 Bd5 Rb8 Ba8 Rb7 Rc8 Bcb6 Rb8 Bb1 Ra4 Ba2 Q8f7 Qh7 Rh8 Qg8 Qf8 Rg2+
n1B1n1QR/N2Q4/1NqbrN2/k1nNqnB1/1qr3b1/3nQ2q/6Q1/n2R1K2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 Kd7 g4 Kc7 b4 Kb6 g5 a5 e5 f5 e6 h5 g6 d3 g7 d4 e7 f3 e8Q f2+ Kd2 h3 Qe5 a4 Qde2 f4 Qe6+ Qd6 Kd1 h2 Qe1 a3 Qg4 a2 Qge2 h4 Qc3 h3 Qe3 d2 Ke2 d1N Qe4 d3+ Kd2 f3 Ba3 Nf6 g8Q Na6 Ne2 Rh4 Bc1 Nc5 Ng3 Ra6 Nh5 Ne8 Nf6 Nb2 Qeh7 Qe7 Qg2 Qe5 Qd7 Bd6 Qa3 Rd4 Nc3 Nba4 Kd1 Rg4 Bg5 d2 Bd3 f1N Bf5 f2 Qc1 Qg3 Ke2 d1N Qe3 Ndb2 Rd1 a1N Be6 Nd3 Bf5 Bb7 Be6 Qe5 Ncd5+ Ka7 Bf5 Nb6 Be6 Na8 b6+ Kb8 b5 Bc8 b7 Ka7 Bf5 Rc6 b6+ Ka6 b8Q Ka5 b7 Ng3+ Kd2 f1Q Be6 Na4 c5 Rc4 Bg4 Rb6 c6 Nf5 c7 Qff4 Ke2 Qfd4 Kf1 Nac5 Qc6 Be6 c8N Qc3 Na7 Qb4 Qd7 Rc6 Rg1 h1Q Qbd8+ Rb6 b8N h2 Bh3 Nec7 Qg8 Ne8 Qgd2 Qhe4 Qg2 h1Q Bg4 Qh4 Rh1 Qhg3 Rh8 Qh3 Na6 Rc6 Nac7 Ra6 Nb6 Qc6 Bh5 Nfg7 Ncd5 Bg4 Nbc8 Rb6 Bf7 Nf5 Be6 Rb7 Ncb6 Rc7 Qdh7 Re7 Bc8 Re6 Qd7
KNR1nr2/N4N1q/1b1Qn3/1b2R1Qn/nN2B2k/2B1n1Rn/1n6/2nn2Rr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 g4 a5 b4 h5 c4 a4 e4 h3 b6 d3 b5 a3 b7 h2 c5 d2 c6 h4 c7 h3 e5 f3 b6 a2 e6 f2 e7 f4 e8N f3 Qe1 Qe7 Bb2 d1N Bb5 f1N Ng7 f2 Ne8 Nf6+ Kd4 d5 Ng7 Nd2 Ba6 f1N Nf5 Nc3 Qg3 Qh7 Ne3 Bd7 c8R Na4 Bc3 Ne8 Na3 Bb5 Nec2 Nd7 b8Q Ndc5 b7 Nc4 Re1 a1N Qbd6 Ncb2 b8N Ne3 Nb4 Nab3+ Ke5 d4 Bb7 d3 Be4 Ne6 Nf3+ Kh6 g5+ Kh5 g6 d2 g7 d1N g8R Nc1 Rhg1 h1N Qg7 h2 Ng5 Nhf2 Nf7 h1N Re2 Kh4 Qg5+ Kh3 Rg7 Ng3 Ree1 Nh5 Rg6 Nf5 Kd5 Be7 Rg7 Bd8 Rg8 Bb6 Rg6 Be2 Kc6 Nfe3 Nb5 Bd3 Na7 Bb5+ Kb7 Rf8 Qgd5 Kh4 R6g3 Nh3 Nac6 Ra6 Na7 Nac5+ Ka8 Ra1 Ref1 Rb1 Rf5 Nca4 Re5 Ne2 Reg5 Ndf2 R1g2 Rh1 Rg1 Nc1 Qf5 Nfd1 Qg6 Bd7 Re5 Bb5 Qg5+
k1KB1b1N/3N2n1/3r3Q/4rQ1n/n2NBR2/1q1r1q2/2RBb2r/1nBbb2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 Kb7 c4 f5 b4 a5 g5 h5 e5 a4 e6 a3 c5 f3 b6 f2 b5 h3 g6 f4 g7 a2 e7 h2 e8Q f3 Qe6 h4 Qf7+ Nd7 Qf6 h3 Nc3 Rh5 Qh6 Ra3 c6+ Ka8 c7 Ne7 g8N Re5 Ne2 Ba6 c8N Nf5 Nf6 Ng7 Nd6 Qb8 Bg2 f1N Qc2 f2 Nf7 Ng3 Be4 f1N Nh8 Nd2 Rf1 h1R Rf4 N3h5 Ng3 Rh2 Nh1 Qb7 Rb1 a1B Rb2 Nb1 Qf2 Rb3 Rc2 Bb2 Qf1 Bba3 Bd2 Bab4 Qf3 Rg2 Qg4 h2 Qf5 Rg6 Bc1 Rb2 Ne2 Be1 Ng8 Rd6 Nf6 Qb8 b7+ Ka7 Rf1 Nb6 Rf4 Na4 Nd7 Rb3+ Rc3 Qa8 b8B+ Kb7 Ba7 Qb8 Bb6 Ka8 Bd8 Rb2 Nhg3 h1Q Rc4 Qf1 b6 Qg2 Nh1 Qg4 Ng1 Rh2 Ne2 Qg3+ Kc2 d3+ Kb3 d2+ Kb4 Qb7 Ka5 Qf3 Nd4 d1R+ Rc3 Rdd2 Rc2 Rd3+ Bd2 Rc3 Bc1 Be2 Bd2 Rd3 Kb5 Qc6+ Ka5 Qc4 b7+ Ka7 b8B+ Ka8 Ba7 Qb3 Bc5 Qe3 Ba3 Qf3 Nc6 d4+ Ka6 Re3+ Rc4 d3 Bac1 Rc5 Rc2 Rb5 Bb4 d2 Bba5 d1B Bad2 Rdd5 Nd4 Rd3 Rc6 Re5 Rc2+ Rbd5 Bb4 Nac3 Kb6 Na4+ Kc7 Qg4 Kc8 Qf3 Nc6 R5d4 Bbd2 Rd6 Nd4+
1KR2n2/B2Bb3/N1q1B2N/2qNnQ2/Qn4rk/1Nrbn2B/1R2bpr1/5n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 h5 g4 f5 b4 a5 e4 d3 c4 h3 e5 a4 b6 d2 c5 h4 c6 a3 c7 f3 b7 a2 e6 h2 e7 f2 Kd6 h3 b5 f4 b6 f3 Bc4 f1N Bf7 f2 Be8 Ra3 Qc2 Nc6 b8N Nf6 b7 Rh4 Qa4 Ne5 Nc3 Nh7 Rb1 a1N Na6 Nc2 b8Q Nb4 Nd5 Rc3 Bf7 Bb7 c8B Qa5 Bb2 d1B Be6 Be2 Qa7 Bc6 Qc5 Bcb5 Ba3 Bbd3 Rb2 Qb5 Kc7 d6 e8B Be7 Bc6 Nf8 Bc6d7 Qc4 Kb8 Qd4 Nf4 d5 Qcb5 Qc5 Nf3+ Kf6 Nd2 Kg5 Rg1 h1Q Nb3 d4 Nd5 h2 Rg3 Qf3 Qba5 h1R Rg1 Nh2 Rc1 Nf1 Q5b5 R4h2 Rcc2 Kh4 g5 Qe4 g6 Rg2 g7 Rhg1 g8N Rg4 Nh6 R1g2 Nb6 Qec6 Nd5 Bf5 Rc1 d3 Rcc2 d2 Qd3 Bh7 Qf5 d1N Rc1 Na2 Bb4 Bg6 Ba5 Nb4 Bb6 Nde3 Ba7 Rg5 Qb1 Be4 Bh3 Bh7 Qf5 R5g4 Be6 Bg6 Bcd7 Bh7 Qf3 Bb1 Qf5 Bbd3 Ra1 Rc1 Rc2 Qc3 Bc8 Qe8 Rb1 Qd4 Rc5 Rc3 Rb2 Qd7 Rc7 Qc6 Bcd7 Qdc5 Rc8
b2Bn1Qb/1Nn2q2/1N2nR1N/k2Q1rb1/4qRBN/q4p1b/1br3Q1/1Q3K2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 Kd7 e5 Kc7 c5 f5 c6 Kb6 e6 g3 e7 g4 e8N g2 h5 f3 c7 f2+ Ke2 d3+ Ke3 g3 h6 f4+ Kd2 a4 h7 a3 Qe1 a2 Be2 f1Q Kd1 d4 Bh5 d2 Nc3 Nf6 Bb2 Be7 Bg4 Qd5 Rh4 Rf8 h8Q Qe4 Nd6 Na6 Qg8 Ne8 Qd5 Bg5 Nf3 g1B Nf5 g2 Nh6 Rf5 Ba3 Qc4 Qf1 Bb7 Rb1 a1B c8Q Nac7 Na4+ Ka7 b6+ Ka6 b5+ Ka5 Bc1 Bb2 Nc5 Qb4 Qce6 Qa3 Qg8 Rc8 Qe2 Ba8 b7 Bh2 b8Q g1N b6 Nh3 b7 Bg1 Qh2 Be3 Ke2 d1B+ Kf1 d3 Qc2 Bed4 Qg2 Bh8 Be3 d2 Bg1 Bbe5 Rb6 Bb2 Rf6 Ba4 Bd4 Bd7 Be5 Be6 Bd6 Bd7 Be7 Be6 Bd8 d1Q+ Ne1 Qdb3 Nf3 Qba2 Qa7+ Kb5 b8N Kb4 Qab7+ Ka5 Nbd7 Q2b3 Nfe5 f3 Nb6 Nf4 Ng6 Qba2 Qd3 Bd7 Qb1 Qf7 Qd5 Nfe6 Bh3 Nb5 Rf4 Rc6 Nh4 Nbc7 Bg4 Bc8 Ncd7+ Rc5 Qdd1 Rc3 Nc5 Rc2 Qd5 N6g7 Qg3 Re5 Bh5 Bh3+ Qg2 Nge6 Bg4 Rf5 Nb7+
1rr2qRr/QN4R1/b1Qr1Rqp/1B2b1R1/nrq3nK/B1QNQ3/8/n5k1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 g4 Ke5 c4 Ke4 g5 f5 g6 a5 c5 d5 c6 h3 c7 a4 b6 a3 b5 h2 e3 d3 b7 h6 b6 d2 g7 a2 Nh3 d4 Be2 f3 Kg3 f2 Qe1 d1R Rf1 h1R Ng1 d3 Qa5 d2 Na3 Qf6 Nf3 Bd6+ Ne5 Rh4 Bb5 Na6 b8Q Nc5 b7 Na4 Qba7 Rb8 Nc4 Rf4 Nd3 Be5 Ba3 Rc1 Q5b6 d1R Na5 Qg6+ Kh3 Kf3 e4 Rc4 Qc6 Nf6 g8R Ng4 Kh4 Kg2 Rg7 Rc2 Rb1 a1N Rb2 Rc4 Rc2 Rb4 Rc5 Rf3 Rd5 f4 Rc5 Re3 Rd5 f3 Qc3 Ra8 b8R Ba6 Rbg8 Rb8 c8Q Re2 Qcd7 Rc2 Qdc6 Kh2 Nb7 Rcc1 Rg1 f1Q Rd6 f2 Rf6 Qe2 Rg3 f1Q Rg1 Qa2 Rg3 Qc4 Rg1 Bc7 e5 Rc2 e6 Be5 e7 Rcc1 Ne1 Rd6 e8Q Qff5 Nd3 Qc8 Qe6 Qf8 Rf5 Rc2 Rgf1 Rc1 R1f2+ Kg1 Rg5 Rdd8 Qe7 Rdc8 Qec5 Rd1 Qe3 Rd2 Ndc5 Rd5 Nd3 Rd6 Rf6+
r1Qn1R2/Nq3BB1/2rb1pbr/K1N1qrr1/4Q3/2R1b1n1/2n2NRR/1kN5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Ke6 c4 Kf5 g4+ Ke4 g5 a5 e3 h5 b6 d5 g6 h3 b5 f6 c5 a4 c6 h4 b7 h2 g7 f3 c7 f2 b6 a3 Bb2 h3 Be2 f1R Bc4 d3 Kc3 d4+ Kb3 a2 Ba6 d2 Ka4 d3 Qe1 d1R Ka5 d2 Ba3 Nh6 g8R Qd4 Ne2 Nf5 Rg2 Ng3 Nc1 Bf5 c8N Bd6 Na7 Rh5 Bc4 Rg5 Bf7 Qe5+ Bc5 Bg6 Nc3+ Kf5 Rb1 a1B Ne4 Bd4 Rb3 Rf2 Rc3 Nc6+ Kb5 Rf1 b8N Nd8 b7 Rf4 Qe2 Rdf1 Kb6 d1N Ka5 Rh4 Qc4 Rh6 Nd7 Rf2 b8Q Rf4 Rf1 h1Q Nf2 h2 Qc8 Rf3 e4+ Kf4 Be6 Ne3 Bf7 Nc2 Re1 Be3 Re2 Qe1 Qd4 h1R Qb4 Qd5 e5+ Kf5 e6 Qb7 e7 R1h4 e8R Rc4 Bb6 Rc6 Rf8 Rf4 Nc5+ Ke5 Qb1 Kd4 Rh2 Rff5 Bc7 Be7 Bf4 Bd6 Qe6 Qh1 Qc8 Qe4 Nd1 Qee7 Reg2 Qe5 Nf2 Nb4 Nd1 Rh8 Bd5 Rgh5 Bh6 Rhg5 Rb3 Rh7 Bg7 Rh6 Bf3 Kc4 Nf2 Kd4 Ra3 Kc4 Bd5+ Kd4 N1b3+ Kc3 Qe4 Kb2 Bf7 Nc2 Nc1 Kb1 Rc3
b2rQ1Q1/rprk1B2/rn1BNR2/2bq1BR1/1N3r2/1q2n1Kn/4BQ2/Q2q4 b - - 0 1 illegal: Other
2Qb1N1R/8/R3B1Nn/r2q2rb/Qk3qp1/5n1N/1q2QKnr/QNbb2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Nh3 g3 c4 Ke7 b4 Kd6 e4 a5 b6 f5 b7 g5 b5 Kc5 b6 d5 e5 d3 e6 f3 e7 a4 e8N g2 Nd2 g1B Nd6 d4 Ne8 f4 Ng7 a3 Nf2 a2 h4 Qd5 h5 Nd7 b8N Be7 h6 Ne5 h7 Bd8 b7 Bg4 Rb1 a1Q Rb6 Ra5 Qe2 Qb2 Bh3 Bh2 Nd1 f2+ Kf1 Bg1 Nc6 Bh2 b8Q Bg1 Nb1 d2 Ne7 d3 Ra6 Bf3 Qc7+ Kb4 c5 Bg4 c6 Bh2 Ndc3 d1N Ne6 d2 Ne4 Bg1 Kg2 f1R Qd7 Be3 c7 f3+ Kg3 f2 c8Q Re1 Ng6 f1Q Nef8 Qf4+ Kg2 Nf3 Nf2 Bf5 Rh2 Bc2 Be6 Bd3 Ne7 Bg6 Na3 Rh1 Rh4 g4 Qe8 Bf7 Nh3 Rh2+ Kf1 Bg6 Rh6 Bh5 Qec6 Qb1 Bb2 Qc2 Bd4 Qb2 Ba7 Nf6 Qe8 Rg8 Qed7 Rg5 h8Q Qc1 Qe8 Ng8 Qa1 Qb2 Rh8 Nh6 Nb1 Nf2 Qc1 d1B Neg6 Nd3 Qc8 Bc1 Bg1 Nde1 Qec6 Ng2 Kf2 Rb5 Q6d7 Ra5 Qda4+
1Qr1nQ2/2r2n1R/QB4q1/4N3/1N1r1p1b/RqrBRKn1/3b1Q2/1R2qbk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 b6 a4 b5 h3 c5 h4 g7 a3 c6 h2 b7 f3 b6 a2 c7 f4 Bh3 d3 Qb3 Kd4 e5 d2 e6 d1Q e7 Nd7 e8R Nh6 b8Q Nf7 g8R Ra3 b7 Bb4 Bg2 h3 Nc3 Qg5 Qa4 Qb3 Rgf8 Nf6 Re7 Qg6 Ne4 Ne8 Qa6 Bd2 Rb1 a1B Kf1 Ke3 Qb6+ d4 Qe6 f2 Nf3 d3 Ne5 Bd7 c8Q Bb5 Nf6 Ba6 Rg1 h1Q Be4 h2 Qec4 Rh7 Rh8 Bc3 Qg4 Bb4 Re6 Be7 Qb5 Rg7 Rh7 Bd8 Bf5 Qe4 Qa8 h1N b8Q Qeb4 Kg2 f1R Ra1 Ng3 Qa5 Bb5 Q5a6 Bc4 Bb2 Rc1 Re7 Rc3 Rgb1 Ra5 Ra2 Rc5 Ra3 Rc8 Qh5 Bb5 Qh2 Bc4 Nd5+ Ke2 Re6 Bh4 Re7 Qa5 Nb4 Bb5 Bc1 Ke1 Kf3 Kf1 Qe2+ Kg1 Na2 Be1 Be4 d2+ Bd3 d1R Nb4 Bd2 Bb2 Nh8 Re6 Rgc7 Bc1 Be3 Bd2 Nf7 Be1 Bd2 Bf2+ Kh2 Bb6+ Kh1 Nd7 Bc4 Re3 Kg1 Ne5 Be1 Bf5 Nf6 Qc6 Qd5+ Be4 Ne8 Qc2 Bf1 Qd6 Qd2 Qf8 Qc1 Qa2 Rd4 Q2e2 Bd2 Bd3 Qe1 Qf2+
nq1b4/1r1RqkB1/2N2b1K/1nRn1R1p/1R1rQ1r1/2b2Q2/3N4/Qb1QqB2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 e5 g4 h5 b4 d5 c4 a5 f4 d3+ Ke3 h3 g5 d4+ Kd2 a4 c5 h2 c6 a3 f5 a2 f6 Qe7 c7 Bf5 c8Q+ Kf7 b6 Rh7 b5 Nd7 b7 Ra4 b8Q Nb6 Qcc2 Na8 b6 Bg7 b7 e3+ Ke1 e4 Bb2 e2 Kd2 Bh8 Qa7 Rc4 b8R e1B+ Kc1 e3 Ne2 Bh4 Rb4 Be4 Nd2 Bg6 Rb1 a1B Rb5 Rg7 Rc5 Bh7 Rg1 h1Q Rg2 Bf5 Rf2 Qh2 Qa2 Be4 Rff5 Qb8 Qa4 Rb4 Bc3 Rb7 g6+ Kf8 f7 Nf6 Rb6 Nd5 Rb4 Rg8 Qa5 B8f6 Qaa2 Kg7 f8R Bhg5 Rd8 Bh4 Rd6 Kf8 g7+ Kf7 Rd7 Bg5 Nf4 e2 Ng6 e1Q Qa7 Bf4 Qb3 Bc7 Qa5 Bd8 Ne5+ Ke8 Nc6 Kf7 Rf3 Bh7 Rf5 Bg6 Qc7 Bh7 Qf4 Bg6 Qe4 Bh7 Nc4 d2+ Kc2 Bb2 Kd3 Ba1 Qdf3 d1N Nd2 Bg6 Bb2 Nc3 Qbd1 Nb5 Bc3 Qh4 Ke2 Qh1 Kf2 d3 Be5 Bc3 Kg3 Ndc7 Kf4 Bh7 Nb3 d2 Qa1 d1R Bd4 Rd3 Nd2 Qg1 Be5 Rd4 Qfd1 Rf8 Qf3 Qf2 Qd1 Qe1 g8Q+ Ke8 Qa2 Rg8 Qaa1 Kf7 Rg5 Bh8 Bf6 Bg6 Rgf5 Nd5+ Kg5 Bh7+ Kh6 Rg4 Re5 Bg6 Bg7+ Bf5 Bf8 Bf6 Bg7 Bh7 Qef4 Be4 Rf5 Bb1 Q4e4
4Br2/1K2BN1N/r1Nqbq2/4N2p/1n3Bb1/R2Rn2n/r1Bb1b2/1Q3Qkq b - - 0 1 illegal: No possible last move, all moves rejected
qQ3q2/1b1R3R/nn2Rr2/B3p3/r3Rb2/Bq1b1n1k/QNBrB1nN/1K6 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 b4 Kg5 c4 d5 Kc2+ e3 b6 e5 f3 h5 b7 a5 b5 d3+ Kb2 d2 c5 a4 c6 e2 c7 e1N b6 d4 Rh2 h3 f4+ Kh4 f5 d3 g5 a3+ Ka2 Ra4 f6 Bf5 c8Q Ne7 g6 Rh6 f7 Ng2 g7 Rf6 g8B Bh6 f8B Bf4 Qe2 d1R Bb3 d2 Nc3 Bd3 Bc2 Na6 b8R Nd5 b7 Nb6 Bb4 Qf8 Ba5 Kg3 Qd8 h4 Nf3 Kg4 Rh1 h2 Kb1 h3 Qd6 Kg3 Re8 Kg4 b8R a2+ Kb2 Kg3 Rbd8 Kg4 Rb1 a1N Rd7 Nb3 Qb8 Nd4 Re6 Kg3 Ra1 Kg4 Kb1 Kg3 Rg1 h1Q Nh2 Nf3 Ra2 Kh4 Rb2 Kg3 Rb4 Kh4 Re4 Kg3 Ng4 h2 Qf2+ Kh3 Be2 Ngh4 Re1 Qg2 Rg1 h1B Nh2 Qgg8 Rgg7 Ng2 Qa7 Qa8 Qb8 Qf8 Rge7 Rf1 Nd1 Re1 Bf1 Re2 Nb2 d1Q Rg7 Rd2 Be2 Nge1 Qc5 Ng2 Qa3 Qe1 Rge7 Qg3 Qa2 Qgg8 Rc6 Qd5 Rce6 Qb3 Rh7+ Nfh4 Red4 Ne1 Rc4 Bb7 Re4 Qd5 Nd1 Nf3 Ba3 Qb5+ Nb2 Qb3 Rhf7 Ng2 Rh7+
1Qn2r2/qk4qr/Nb2r1RQ/1p2Nn2/nb6/q2N1KN1/b2QBR1Q/B2q4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 c5 g4 Kc7 e4 b5 a4 f5 g5 h5 d6+ Kb7 d5 b3 e5 c4 g6 f3 g7 h3 e6 h2 a5 h4 e7 c3 e8N f4 d7 h3 d6 c2 Be2 b2 Bf1 Qf6 d8Q Be6 d7 Rh7 Nc7 Na6 Nd5 Bb4 Qd2 Ne7 g8Q Qg7 Ne2 Nc5 Qh8 Ra6 Ra2 Nc8 Qh4 Na4 Rg1 h1Q d8Q h2 Na3 b1Q Nc4 Qb3 Ng3 Qa3 Bb2 c1B Qh6 Bg8 Bd3 Re6 Qd6 Bf7 Rg2 Qd1 Be2 h1Q Ne5 Qh4 Ba1 Qe7 Qh2 Qc7 Qhf8 Bg8 Qf6 Qb8 Qfh6 Qa7+ Ne3 Bb2 Nd3 Bd4 Rc2 Bb6 Rc6 Nc5 Nc4 Bf7 Nce5 Na4+ Qd4 Re8 Rg6 Ba2 Rg1 Re7 Rf1 Re6 a6+ Kb8 Kg1 f2+ Kg2 Kc7 Kf3 Kb8 Rh1 f1N Qd6+ Ka8 Rg1 Ne3 Rf1 Nf5 Rf2 Bd8 Ke4 f3 Kf4 Bb6 Ke4 Qad7 a7 Kb7 a8N Qdf7 Nc7 Qe7 Rg2 f2 Na6 f1R Rf2 Qc7 Kf3 Qb8 Rf6 Qa7 Rg6 Rh8 Nc7 Rh1 Na6 Rf8 Qg1 Rh4 Qh2 Rh3 Qhe3 Rhh8 Qeh6 Rh7 Qb8+
kb2n3/1n5Q/2bb2p1/4RN1Q/1qqBq1BR/1N4b1/KRn5/QQrrrR2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 h4 d5 c4 Kd7 Kc2 Kc7 Kb3 Kb7 e4 a5 b6 g3 c5 d3 h5 d2 e5 g2 e6 g6 e7 f3 e8Q f2 h6 a4+ Ka2 d4 b4 d3 h7 a3 b5 f4 Nc3 f3 Na4 Nd7 Ne2 g1B Rh5 Bd6 Bh3 f1N Bb2 f2 Qe5 Bh2 Kb1 Qe8 Nac3 Ngf6 Nd5 Bg3 Rh4 Ne3 Qh5 f1Q Bd4 Nc2 Ka2 Qe4 Ne7 Re8 h8Q Rb8 c6+ Ka8 c7 Bb7 c8Q Bc6 Q8h7 Nc5 Bg4 Nb7 Qcf5 Rbc8 Nc1 Qfe2 Qh1 d1R Nb3 d2 Qff1 Qc4 Nf5 Re6 Qd3 Ne8 Rb1 Rg1 Rf1 d1Q Qc3 Qde1 Qa1 Qf4 Qe4 Qeb4 Qd3 Re1 Qdd1 Nc5 Qdb1 Qe4 b7+ Ka7 b8R+ Rc7 Bc3 Nb7 Rc8 Rd7 Rc7 Ka8 b6 Rd8 Rg7 Bb8 Re7 Rdd1 Bd4 Bbd6 Qc1 Rh1 Re5 Rg1 Kb1 a2+ Kb2 Rh1 Qab1 a1B+ Ka2 Bc3 Qcb2 Bd2 Qc3 Bb8 Qca1 Bdf4 Re6 Bfd6 Re5 Nc5 b7+ Ka7 Rf4 Rc1 Be3 Red1 Qg5 Qb6 Qgh5 Rhe1 Rf1 Bbc7 b8R Qbb5 Rb7+ Ka8 Bd4 Bb8 Rb6 Qbb4 Rb7 Qd2 Rb6 Nb7 Rb4 Qb5 Nc5 Qdd3 Rb3 Qb4 Rb2 Qdc4+ Nb3
rb3Bq1/r1n1rRnq/1N2pNn1/b1N1R1N1/2q2b2/3Q4/1QBQ4/1K1bQ2k b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 a5 g5 a4 c3 a3 Kc2 h3 b6 e3 g6 Ke4 c4 d5 g7 d3+ Kc3 d2 Kc2 h4 c5 e2 c6 e1B f6 d4 c7 d3+ Kc3 h2 b5 h3 f7 a2 Kb2 Na6 b7 Rh7 b8Q Bg4 c8N e6 b6 Bd6 f8N Nc7 b7 Ne7 g8Q Bf4 Na3 Ng6 Nc4 Re7 Nf3 Ra7 Qc2 d1Q Na5 Qe2 Nb3 Ba5 Qd2 Qe8 Rg1 h1Q Nd7 h2 Qh7 Qg8 Ncb6 Bh5 Rb1 a1B+ Ka2 Bae5 Rg5 Bg4 Ba3 Ra8 Qd8 Ra7 Qb2 d2 b8Q d1R Nbc5+ Ke3 Rc1 Kf2 Kb1 Re1 Qc3 Qc4 Bd3 Kg2 Nf6 Re2 Qd7 Ra2 Bc2 Ra8 Rf5 Bh5 Ng5 Bd1 Qd5+ Kg1 Qhh3 Qhe4 Qh7 h1N Qdd2 Ng3 Qb4 Bd6 Re5 Nf5 Qh3 Qb7 Qhd3 Ng7 Qb2 Qh1 Qb7 Qhh7 Qbe4 Nd5 Qee2 Kh1 Qee3 Bb8 Qef2 Qh3 Bb4 Nc7 Qfe1+ Qf1 Ba3 Qg1 Bb4 Qh7 Qee3 Nh5 Nge4 Re8 Qg3 Nh4 Qh3+ Bh2 Qf5 Bf3 Rf1 Bd1 Na6 Ra3 Bc5 Bc3 Bf8 Re7 Nac5 R3a7 Ng4 Ba5 Qff2 Bg3 Qfe1 Bh2 Rf7 Bf4 Qef2 Qg3 Ngf6 Qgg8 Qfe3 Ng7 Ng5 Ng6 Qee1#
B5kn/Nr1Rr3/3r1RnK/1b6/qn1bQ3/rN2R1rN/4RbNp/Qr4B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 a5 c4 h5 c5 f3 e5 f4 g5 a4 b6 f2 c6 f3 b5 a3 c7 d3 Ke3 d4+ Kf4 a2 b7 h3 b6 d2 Na3 h4 Qc2 d1N Qd3 h2 Nb5 h3 Na3 Qe8 Rb1 a1B Rb3 Bd7 c8N Bc5 Nc4 Bb5 Ne3 Nc3 Ng2 Rh7 Qe4 d3 Be3 d2 Na7 Ne7 g6+ Kg8 Kg5 d1R g7 Ng6 e6 Nd7 b8Q Nd5 e7 Bad4 b7 Nh8 Qbe5 Nf8 b8N Nfg6 Nbc6 Nb4 Na5 Bb6 Bd3 f1R Rc3 f2 Nb3 Rfe1 Bc4+ Qf7 Bd5 f1R Rc6 Rf4 Rf6 Rf3 Bb7 Rd2 e8R+ Qf8 Rd8 Qe8 Rd7 Rb1 Bf2 Rb8 Ba8 Rb7 Be3 Ra2 Bf2 Rc3 Be3 Ra3 Bf2 Rc6 Be3 Rd6 Bf2 Bdc5 Qa1 Bd4 Be3 Rh4 Bf2 Rg4+ Kh6 Rg5 Rf3 Re5 Re3 Re7 Re2 Rf1 Be3 Rf3 Bf2 Rg3 Re3 Kf7 g8R Bbc5 Rg7+ Kf8 Rf7+ Kg8 Rf6 Bb6 Ne2 Bbc5 Rf1 h1R Bg1 h2 Nef4 Bb6 Re2 Bf2 Nh3 Bbd4 Rc7 Qc6 Rd7 Qa6 Rc1 Qa4 Rc3 Be1 Be3 Bf2 Rd3 Rb1 Rc3 Be1 Bg1 Bef2 Rce3
b1B4N/R1k1nn2/2r2Bnb/r1Q2B2/r1R5/Qr3RN1/K4pR1/1Bb1qn1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 e4 d5 b4 Kd7 c4 f5 Kc2 h5 Kb3 d3 g4 d4 c5 d2 c6+ Kc7 g5 d3 g6 a4+ Ka3 h3 e5 f3 e6 h2 e7 f4 e8Q f2 g7 h4 Ne2 h3 Qe1 d1N Qc3 f3 Bg5 d2 Rg1 h1N Ng3 h2 Bh3 f1N Bf6 f2 Qc5 Ne7 g8B Rh4 Rg2 Bb7 Bh7 Ng6 Nc3 Nd7 Bf5 Qe7 Nce4 Nc3 Ng5 d1R Nf7 Ra5 Nh8 Nde5 Qa8 Nd5 Ka2 a3 Qaa7 Bh6 b6+ Kd8 b5 Rd3 Qa6 Ba8 b7 Rb3 b8R+ Kc7 Rf8 Rha4 Rc1 Nf7 Rc4 Qe8 Bb1 Nde7 b6+ Kd8 b7 Kc7 b8R Bc1 Ka1 a2 Bf5 Qd7 Rbd8 Qd1 Rd3 Qe1 Rf3 Rd3 Rg8 Bh6+ Kb2 Rd6 Rg7 a1B+ Kb3 Bb2 Bb1 Bbc1 Qaa7+ Kc8 c7 Rc6 Qa3 Kd7 c8B+ Kd8 Q7c5 Kc7 Ne4 Nhg3 Ka2 h1R Rg8 Rh4 Rg7 Nh1 Ng3 Rb4 Bbf5 Rb3 Bb1 Nge5 Bhf5 N5g6 Rc2 Rhb4 Rc4 Rba4 Bh4 Nd5 Rcc3 Kb8 Ba6 Ng5 Ra7 Nf7 Bf6 Nde7 Bb7 Kc7 Rc4 Rbb5 Bbc8+ Rb7 Ra6 Rb3 Ra7+
r3rR2/b2n4/1bb1k1q1/BR2r2r/nQ5B/1nrpB1bN/1R3N2/1QR1KB2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 g5 b4 f5 h4 a5 b6 d5 h5 g3 b5 g4 c5 f3 c6 f4 e5 a4 c7 d3 e6 f2+ Kd2 f3 h6 a3 h7 a2 b7 g2 b6 d4 Qe1 g3 Nh3 g1B Nc3 g2 Nb5 Qe8 Be2 f1R Qh4+ Nf6 Qg4 f2 Qf4 Nbd7 b8Q Bb7 c8R Bc6 b7 Nd5 Rd8 Re1 Nd6 f1R Rb1 a1N Rb5 Nc3 Ne4 Qg6 Nef2 Na4 Qfd6+ Kf6 Qb4 Bd6 e7 Ke6 Rf8 Bg3 Qb1 Rg8 Qf4 Rh8 b8B Rg8 Bc7 Re8 Ng4 Rf3 Bf1 Re5 h8B Nb3+ Kd1 d2 Ba5 Ra8 Bf6 Rc3 Bh4 B1f2 Qfe4 g1B Ke2 d1R Be3 Rh8 Rfb8 Rh5 e8R+ Kf7 Rh8 Ke6 Rhf8 Rdc1 R8b6 R1c2+ Kd1 d3 Qb4 Re2 Rbb8 Be1 Ngf2 Bd2 Bf4 Be3 R8b6 Bd4 Rb7 R2e4 Be3 Ba7 Ke1 Rf4 Rh8 Rff8 R7b6 Rfd8 Rf8 Re8 Ra6 Qg7 Kd1 Bd4 Bf4 Rh6 Ng4 Be1 Bc7 Re2 Bg2 Nab6 Ra2 Na4 Ba5 Qg6 Rb2 Bg3 Bfg5 Bge3 Ngf2 Rh5 Re1 Ba7 Bf1 Bed4 Bc1 Ree5 Be3 Na1 Kd2 Bdb6 Rc1 Nb3+ Ke1
2n1R3/4QbQ1/r2n1bbB/nN3n2/R2B2KR/pB4bn/q1Nk3r/2r2BR1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 c5 g5 h5 a5 c6 g3+ Kf3 g4+ Ke2 d3+ Kd2 Kd4 e5 g2 h6 f3 e6 a4 b6 g3 b5 f2 b7 a3 c7 f4 h7 f3 b6 Bg7 e7 Ra6 e8R Bf6 Rh5 Be6 c8B Nc6 b8Q Na5 b7 Bf7 Re2 Ne7 Bd7 Nc8 Rh6 Qg8 Nh3 g1N Ba4 g2 Ng5 Nh3 Re3 g1B Bb3 Bh2 Qd6 Bg3 b8R Bg6 Qc2 Qf7 Kd1 d2 Re8 Qg8 Ne6+ Ke3 Qdc7 d4 Rh4 Qf7 Nf4+ Qe6 Bfc4 f1N Qb2 f2 Nc3 Bf7 Nb5 Bg6 Ra8 Bf7 Kc2 d3+ Kb1 Bg6 Ng2+ Ke2 Qbe5+ Ne3 Qe7 f1B Qc3 Nf5 Ne3 d1R Qe5 Bg5 Q5g7 Bf6 Ra7 Nfd6 Ra8 Rg8 h8B Ke1 Ra7 d2+ Bd3 Be2 Kc2 Beh5 Ra8 Bf7 Bf1 Rf8 Kd3 Rg8 Bb2 Rc1 Bd4 d1N Ra7 Qd5 Rb1 Qg2 Ra1 Qa2 Rb1 Ndb7 Ke4 Bhg6+ Kf3 Kd2 Kg4 Rf8 Qg8 Nbd6 Bg7 Nc6 Bh6 Na5 Qg7 Rh8 Bc2 Nf5 Bb3 Nc3 Rc7 Ne4 Rc4 Ned6 Ra4 Rc5 Bg2 Rc7 Rg1 Rc1 Bf1 Na7 Rh5 Nf4 Bg5 Nac8 Rhh1 Rh2 Bh6 Rg2 Rh3 Rh2 Rh4 Nh3 Nc2+
1K2N3/1B2bn2/2N1qQ1B/p4QN1/kb2bN1r/b1R1nR1B/qr1b4/B1b2q2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 e5 f4 d5 c4 Kd7 b4 g5 b6 Kc6 c5 Kb5 h5 e3 Kd3 g3 c6 e2 h6 e1B h7 g2 b7 g4 c7 e4+ Ke2 g3 f5 d3+ Ke3 d4+ Kf4 e3 Ke5 e2 f6 d2 f7 d3 Nf3 g1B Bb2 g2 Rh3 Bf5 c8B Na6 b8N Qb6 Qc2 d1Q Nc6 d2 Bb7 Rb8 Ra3 Nc7 Ba1 Nh6 Ng5 Be3 Rf3 g1B Bh3 Nd5 Rc3 Be7 f8B Be4 Ke6 Qc1 Kd7 Nf7 Bh6 d1Q Qd3+ Ka4 b5 Qa6 b6 Qcc2 Na3 Qa2 Nc4 Qdb1 Nd6 B1d2 Ne8 e1B Qd4+ Q6c4 Qf6 Qf1 Qf5 Qbb3 Nb4 Bf4 Nd3 Bgc5 Kc6 Bfe3 Nf4 Ba3 Kd7 Bdc1 Kc6 B3d2 Kd7 Rf8 h8Q Ne3 Kc7 Qe6 Qhf6 Rh8 Qd5 Rd8 Qdf5 Rd5 Kb8 Rb5 Ba8 Rb2 b7 Qg2 Ka7 Qg1 b8N Qf1 Bb7 Rh7 Nc6 Rh8 Rc5 Bdb4 Rc3 Bed2 Kb8 Rh7 Bg7 Rh4 Bh6
2bb1Kb1/BR1q2BR/n1BrN2p/1Q1q1bk1/1r2B3/1b3b2/2Qnn3/Q1Q3N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf3 a5 b4 d3 c4 a4 e4 a3 g4 h3 e5+ Kg5 c5 f5 c6 h2 c7 d2 e6 d4 e7 d3 e8B a2 b6 Be7 b5 Qd7 b7 Bd8 b6 Nf6 Bb2 Na6 b8B Nd5 b7 Nc3 Qc2 Ne2 Ba7 d1B b8Q d2 Qb5 Rb8 Nc3 h6 Bg2 Rg8 Nd5 Rg6 Bg7 Rd6 Rb1 a1Q Bg6 Bb7 c8Q Qa5 Q8c3 Bc8 Nc7 Rb7 Qa1 Rbb6 Qc1 Bc2 Rb4 d1B Ne6+ Kh4 g5 Bd3 Rb2 Bb3 Bh7 Rb8 g6 Be4+ Kf2 f3 Ke3 f2 Rc2 f1B Rc7 Bb1 Bc6 f4+ Kf3 B1a2 Ke4 f3 Ke5 f2 Rb7 Bh3 Qc2 Bc7 Kf6 f1N Qac1 Nd2 Qa1 Qd8+ Kf7 Qd7+ Kf8 Bf5 Qb4+ Nc4 Bc3 Ng3 g7 Bg6 Nc5 Qh3 Rb6 Ba4 Ne2 Bd8 Rg1 h1B g8Q Bf3 Qbb1 Bge4 Qbc1 Nd2 Qgb3 Qd7 Qbb1 Bf7 Ne6 Bg8 Rg2 Qg5 Ng1 Ne2 Bf5 Qh5 Rg7 Rb7 Qb4 Bb3 Rh7 Rb8 Bg6 Qd5 Bg7 Kg4 Rb7 Kh4 Rc7 Rb5 Qbc5 Rb4 Rb7 Kg4 Qb5 Kh4 Nd4 Kg5 Bf5 Bg4 Bg6 Bef3 Be4 Bf5 Ne6+
1n1Br1nQ/QNBNpn2/q4b2/4R2r/3k2bN/5BNb/bbq3R1/1B4bK b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 Kf2 Kf6 b4 a5 g4 h5 Kg2 d5 c4 d3 c5 a4 f5 Ke5 g5 e3 f6 d2 b6 a3 f7 a2 b7 e2 c6 e1B b5 d4 b6 d3 c7 Qd5+ Nf3+ Ke4 g6 Qc4 g7 Bf2 Qa4 d1Q Be2 d2 Re1 h3+ Kh1 h2 Nh4 Kd4 Qa7 Bh3 c8N Bg1 Nd6 Qa6 Nc3 Qc2 Bf3 d1B Bd2 Rh6 Rb1 a1B Re5 Bb2 Nce4 Be2 Rd1 Bc4 Rf1 Ba2 Rf2 Rh8 Ng3 Bg4 Kg2 h1N Ba5 Rh7 Rfe2 Nf2 Rd2+ Nd3 Kh1 Bh3 Rg2 Rh6 Re3 Ne5 Ree2 Nf6 g8B Bg7 f8Q Nf7 Bh7 Ng8 Re5 Bf6 Bf5 Qcc4 Bb1 Qc2 Ng6 h4 Qd8 Nc6 b8N Rh5 Nd7 Nb8 Nb7 Bg4 Qf8 h3 Nh4 h2 Qh6 Nc6 Qh8 Re8 Nbc5 Nb8 b7 Nc6 b8B Bh3 Bd6 Nb8 Bd8 Bg4 B6c7 Bh3 Rge2 Bg4 Kg2 h1B+ Kf1 Qb5 Nb7+ Qb6 Bc6 Be4 Rd2+ Bd3+ Kg2 Bh3+ Kh1 Bg4 Rg2 Bf1 Rf2 Bfh3 Be4 Qbc5 Rg2 Qb6 Rc5 Qc6 Bf3 Qa6 Re5+
1q4r1/Q1N3n1/Q3R1n1/2R1B2n/K1Q1Bbbk/B4qQB/3pq1n1/qNq4r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kf6 c4 Kg5 Kc2 d5 Kb3 f5 g4 h5 e5 a5 c5 a4+ Kb4 d3 b6 d4 b7 d2 b3 h3 e6 d3 e7 h4 e8Q f3 Rh2 f2 Qf3 f4 Ba3 d1Q Ra2 d2 Qee2 Bd6 Qg2 f3 Rc2 Ne7 Qa6 Qc1 Ne2 Nd7 b8B Ne5 Nec3 N5g6 Nb5 Bf4 c6 Nf5 c7 Ng7 Bd3 f1Q Be4 f2 Rc5+ Bf5 c8Q Qe2 Be5 f1N Nc7 Ne3 Qce6 Rg8 Qec4 Qb8+ Ka5 Bc8 b4 Bd7 Rh1 h2 b5 h3 b6 Kh4 g5 Bg4 Re1 h1N b7 Ng3 Qh2 N3h5 Kb5 Ng2 Kb4 Qf8 b8Q Rh8 Qba7 Qb8+ Ka5 Rh7 Bb4 a3 Ka4 a2 Ba3 Nf8 g6 a1Q Qh1 h2 Qg1 Nf5 g7 h1Q g8B Ng6 Be6 Nfg7 Bc8 Qbb2 Bd7 Rg8 Bc8 Qb8 Be6 Bf3 Bh3 Bg4 Qh2 Rh6 Rf1 Rhh8 Rf3 Qhd1+ Rb3 Qdf1 Rb6 Qff3 Re6 Nf6 Qh1 Kg3 Qg1 Rh4 Qh1 Nfh5 Qg1 Bf5 Bg4 Rh1 Bh3 Kh4 Qh2 Bg4 Qg3+
RQBNK3/2q1B3/rN3Q1p/3q4/4r1k1/rn1qR1nb/1Qq3Q1/2b1rRRr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 b4 f6 g4 d3 c4 f3 g5 h3 g6 a4 c5 h6 b6 a3 b7 f2 b5 h2 g7 d2 b6 a2 c6 Ra6 c7 Ba3 Nf3 Nc6 b8Q Nge7 b7 Na5 Ne5 Nb3 Nc3 Re8 Na4 Nf5 Bh3 f1Q Rg1 h1R Nb6 d6 Qe1 d1Q Bg5 Bc1 Nc6 Re7 Rb1 a1R Qf2 R1a3 g8R Bd7 c8Q Qc7 Qg2 Qd2 e3 Qfd3+ Kf4 Qa2 Qf8 d5+ Kg4 d4 Kh5 Qb2 Kg6 Qbc2 Nd8+ Ke5 e4 Ng3 Bh4 f5 Qf6+ Kf4 e5 Re8 Kf7 Re6 Qh2 Kf3 Bg5 f4 Qa8 Re8 e6 Bc8+ e7 Bd7 Bf1 Kg4 b8Q f3 Rf8 f2 Qag2 Qde2 Rg8 d3 Rh8 d2 Bh4 Rg8 e8R d1Q Re3 Qed3 Ke7 Rg6 Rf8 Bc8+ Ke8 Qf3 Be2 f1R Bg5 R6a4 Rg8 Qd5 Ba6 Re1 Rf8 Be6 Bc8 Re4 Ra1 Qfd1 Rf7 Qcd3 Qgb2 Q1c2 Qg2 Q7c4 Ra7 Qc7 Ra8 Bf5+ Qfe5 Rc6 Be7 Be6 Qf6 Rd6 Na4 Ra6 Nb6 Rd1 Nc6 Kh5 Ra2 Bh3 Qff2 Bd2 Qff6 Rc1 Ra1 Rb1 Bb7 Kg4 Nd8 Rf1 Rae1 Bc1 Rd1 Rf2 Rde1 Re2 Ref1 Re1 Bc8+
qq2bBqR/3B2rn/2bp2qb/2Q3qN/2knB2Q/R2b2R1/5Rr1/2B3NK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 h5 c4 f5 g4 a5 Kg2 f3+ Kh2 a4 b6 h3 b7 a3 g5 d3 g6 h4 b5 Kc5 g7 a2 e5 f4 e6 d6 b6 f2 e7 f3 e8R d2 Ne2 Rh7 Nec3 Nc6 b8B Bd7 b7 Nf6 Bc7 Nd4 Bd3 f1B b8Q f2 Re2 Be8 g8R Qc8 Qe1 d1Q Ba5 Qb3 Bd8 Raa7 Qa8 Qcb8 Nd5 Rhf7 Rh8 Bh6 Nf4 Rg7 Be7 Nh7 Nd2 Rg3 Bf8 Rag7 Nf3 R3g6 Rb1 a1Q Rg1 Qa5 Ra1 Bg2 Rb2 f1B Ra3 Be2 Bf5 Bd3 Nh5 Rg5 Rd2 Kb4 c5 Qg8 c6 Kc4 Bd7 Qf5 c7 Qg6 Qa7 Bh1 Rgg2 Rg4 Kg1 h2+ Kf2 h3 Ng1 Rg5 Qe4 Rg3 Qh4 Rg5 Rg4 Ba8 Bc6 h1Q c8B h2 B8d7 Qhd5 Rb2 Qc5 Kg2 Qa5 Rf2 h1Q+ Kg3 Qf3+ Kh2 Qe3 Be4 Bc6 Qb6 Qaa8 Rgg2 Rg3 Kh1 Qeg5 Qa7 Rf3 Rg4 Rg3 Qa5 Rg2 Rg3 Ba4 Qa7 Bc6 Qc5+
bn2R2R/1q1k1qb1/2p4B/1B2QrrN/1K1nBq2/r4QBr/Q2Q1N2/2q2q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 f5 d4 h5 Kd2 a5 Kc3 f3 g4 a4 e4 f2 e5 h3 b6 c6 g5 h2 b5 a3 e6 a2 d5 h4 g6 f4 e7 h3 d6 f3 b7 Ra5 g7 Nh6 g8Q Qd7 b6 Nf5 Kb4 c3 Bh6 c2 Ne2 c1Q Nbc3 Nd4 Ng3 Rg5 Bb5 f1Q Nce4 f2 Nh5 Qf4 Qf3 Rf5 Rc1 a1R Re1 Ra3 Qa2 Bg7 Re2 Qc7 Re3 Kd7 e8B+ Kd8 d7 Rg8 Bg6 Ke7 d8B+ Kd7 Bh4 Qc1 Bg3 f1Q Nf2 Qb1+ Qb2 Qa2 Qa1 Qf7 Re8 Q1c1 Qa2 Qf1 Rg1 h1Q Rg2 Q1c1 Rh2 Qhf1 Qd2 Rg5 Be4 Rf5 Rg2 h2 Qa2 h1R Rh2 Kd6 Rh4 Rh3 Qd2 Nd7 b8Q Bb7 Qa7 Ba8 b7 Nb8 Qa6 Kd7 Qa5 Re3 Qaa2 Ra3 Ba4 Kd6 Bg5 Nd7 b8Q Be5 Ng7 Bf6 Qb5 Qb7 Rh8 Nb8 Bh6 Kd7 Nh5 Rg6 Re5 Rgg5 Ree8 Qbc7 Qe5 Bg7 Bb5 Qc8 Nd1 Qb7 Nf2
1Q2R1qQ/pB1N4/1q1n1rBK/nr2B1N1/b5rb/r1k4N/5nn1/R1NB2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 g4 Ke5 e4 d5 b4 f5 b6 h5 b5 d3 g5 Kd4 b7 f3 b6 h3 e5 h2 e6 f4 g6 f2 g7 h4 c5 f3 e7 h3 e8N Nc6 b8Q Rh4 b7 Be7 Nc3 Bd7 Nd6 Nf6 g8B Ne8 Qc2 Rg4 Be2 f1N+ Ke1 f2+ Kd1 d2 Na4 Bh4 Nb2 Na5 c6 Qb6 c7 Ba4 Nf7 Nd6 Bd3 Ne3+ Ke2 d1N Kf3 Ng2 c8B f1Q+ Qf2+ Kc3 Bg6 d4 Nd3 Qe1 Bf4 Qe8 Nc1 d3 Ng5 d2 Bb3 Qg8 Qe2 Nf2 Qe8 d1R Be5+ Kb4 Bbc2 Rd5 Bd1 Rc5 Qf8 Rb5 Qg7 Kc4 Qh8 Kb4 Nge2 Kc4 Re1 h1R Ng1 h2 N1h3 Rg1 Re2 h1R Re3 Rd4 Re4 Kc3 Re1 Nfe4 Kg4 Nf2+ Kh5 Rh2 Kh6 Rhh1 Nf4 Rh3 Re4 Rg3 Nfh3 Rf3 Bh2 Rf6 Re8 Rd3 Bg3 Kb4 Be5 Ra3 Qc7 Rb8 Qd8 Ra8 b8N Kc4 Nd7 Rb8 Bf4 Kc3 Bb7 Rc8 Bg3 Rc4 Qb8 Rg4 Be5+
Q4r2/Br4Q1/3n1Q1Q/qBqN2b1/q2n3N/N2R1b1r/k1n1pKNn/R3r3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 f4 Ke6 g4 Kd5 g5 h5 b6 a5 g6 e5 b5 e3 b7 h3 b6 h2 g7 e2 c3 Kc4 f5 d5 f6 e4 f7 a4 Be3 d3 Ra2 d2+ Kf2 a3 Qc1 Kb3 c4 d1Q c5 e1N c6 h4 c7 h3 Bf4 e3+ Kg3 d4 Ra1 d3 Bh6 e2 Qc5 d2 Qa5 a2 Na3 Bg4 c8N Qc2 Qa6 d1Q Be3 Nf6 g8Q Nc6 b8Q Rh7 b7 Nd4 Qf4 Bh6 Ne7 Bg5 Bg2 Qc5 Bc6 Ne8 Nf3 Qda5 Qg7 Nd6 Kf2 Rf8 Nh4 Nef3 Ng2 Bh5 Re1 h1R Qff6 Nh2 Bb5 Bf3 b8Q Kb2 Qba7 Qda4 Red1 Re1 Nd5 Kb3 Qa8 Kb2 Rac1 a1N Rd3 Nc2 Rcd1 Ka2 Rb1 Rb8 f8N Rb7 Ng6 Rh8 Qb6 Rf8 Qc6 Nf1 Qca6 h2 N6h4 h1R Qfh6 Rh3 Qb6 N4f5 Qbd8 Nh2 Qdf6 Qcc3 Bc5 Nfd4 Ba7 Qc5 Ra1+
2K3B1/2B3q1/1R4bQ/1NbRb1q1/r1qrr3/rp2B1qn/2nR1Q2/1k1BRN2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 a4 b5 d4 f5 g5 c5 a5 f3 a6 h3 d6 b3 a7 h2 d5 f4 g6 h4 d7 b4 Ke6 f2 d6 b2 g7 h3 Qd4+ Kb3 e4 Kc2 e5 f3 Bc4 f1R Qg4 b3 Bf4 f2 Ra2 Na6 Ra5 Nb4 Ra2 Nf6 g8Q Re1 Qf5+ Re4 Qgg5 f1Q Ba6 c4 Qfg4 c3 Nd2 Nh7 Qh6 Qg5 Qgh4 Qf2 Be2 Qfg3 Nf1 Kb1 Ra6 c2 Nf3 c1B Nd4 Nc2 Be3 Qg7 Rg1 h1Q Rg2 h2 Rb6 Qg1 Bd1 h1R Rd2 Rg8 Q4f6 Rhh4 Nb5 Rhg4 Qf2 Ng5+ Kf5 Ba6 d8B Nh3 d7 Bc5 Bc7 Rgd8 e6 Ra4 e7 Rge4 e8R Q1g2 Nd4 Bd3 Nb5 Qg1 Re5 Q3g5+ Ke6 Q1g3 Kd5 Ra3 Kc6 Raa4 Kb7 Ra3 Re2 Bd2 Ree6 Bc3 Rd2 Be5 Re7 Rea4 Re8 Bg6 Ree6 Re8 d8R Rc8 R8d3 Rcd8 a8B Rdd4 Re7 Rf8 Re8 Rff4 Kc8 Rfe4 Bc6 Ka1 Re7 b1Q Bd5 Qc1 Bc4 Kb1 Bg8 Rdb4 Rd5 Rbd4 Rf7 Ne1 Rfd7 Qc4 Re2 Nc2 Re1 Rh4 R7d6 Rde4 Rd2 Rd4 Rd8 Rhe4 Rd5
4Nr2/5B2/2QB1qnq/bNQN1NR1/2nr1B2/1p2n1q1/1n1Rqk1b/1K1b3B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 Kc2 h5 a4 c5 e4 b5 g4 f5 a5 f3 g5 c4 g6 f4 g7 h3 a6 f2 a7 f3 Be2 f1N Bb2 f2 Qc1 c3 Qe1 h2 Ra4 b3+ Kc1 h4 Ba1 b2+ Kc2 h3 Ra2 b4 Bg4 Nd7 Be6 Ne7 g8N Nc5 Nf6 Ng6 Qc1 Na4 Bf7 Rh4 Nf3 Bg4 Rg1 h1Q Na3 h2 Kb1 Qg2 Qg5 Rb8 a8B h1Q Qe3 Qg3 e5+ Ke7 e6 Kd6 Qg5 Ne3 e7 f1N Qh5 Nc4 Qf5 Nfe3 e8N+ Ke7 Qc2 Qhh2 Qc1 Qe2 Nb5 Bh6 Rg2 Bf4 Qg1 Bh5 Qf2 Rg4 Nh4 Bc7 Qf5 Ba5 Qc8 Qdd6 Qc6 Qdf4 Bb7 Qh6 d6+ Kf8 d7 Ke7 d5 Rd4 Nec7 Rf8 Nfe8 Bg4 Ned6 Kf6 d8Q+ Ke5 Qc8 Kf4 Nde8 Bh5 Nf5 Kf3 Rg1 Kf2 d6 Bg4 d7 Bf3 d8B Bg4 Nd5 Bf3 Ra3 c2+ Ka2 c1B Bg5 Bd2 Bf4 Bg4 Rd3 Bc7 Kb3 b1Q+ Bb2 Qbf1 Ka2 Bf3 Ba3 Nab2 Qc5 Be1 Kb1 b3 Qc6 Bg4 Bad6 Bea5+ Rd1 Qfg2 Qc5 Qg2f3 Rd2 Bb8 Q8c6 Bh5 Bfe5 Qff4 Ba8 Qfg5 Bb7 Qf6 Bf4 Nbd1 Qa6 Qh2 Bc7 Re4 Nb4 Rd4 Bg5 Ndb2 Bh1 Bf3 Qac6 Be4+ Kc1 Q2h3 Nd5 Bc2 Bh2 Bd1 Kb1 Qe5 Be7 Qf6 Rg5 Q3h4 Bc7 Qg4 Bb6 Be5 Bc7 Bh2 Bf4 Qg3 Bed6
b1R1Qr2/4N2R/1k2n2B/2qR4/1q1rpn2/3Q2rB/qN2q3/rb1QRQbK b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ra4 e3 Qf3 h5 g4 a5 b4 e5 c4 d5 g5 Kd7 b6 Kc6 b7 h3 g6 e2 c5 h2 g7 h4 Qf6+ Qd6 f4 h3 Kf2 e1Q+ Kf3 d3 f5 d4 Qg6 d2 f6 d1Q+ Ne2 d3 f7 d2 Qg4 Ne7 g8R Ng6 Nc3 Nd7 Ra1 a4 b8Q a3 Na4 a2 Qb5+ Kc7 c6 Nc5 Rb1 a1Q Nb2 Bf5 Rg7 Bd3 Rh7 Rg8 Qg1 Qc2 Ng3 d1R Bh6 Qa2 Nf5 Be7 f8Q Qec3 Qf6 Raf8 Qd4 Q2d2 Rg1 h1R Rg5 h2 Bh3 Rhe1 Kg3 h1B Qd5 Qe3+ Kh2 Qf3 Qa6 Qe4 b5 Qcb4 Qa4 Ne6 Qc2 Rg7 Qcb3 Bd8 Ne7 Qe2+ Qf2 Bg2 Qf1 Ngf4 Rf5 Rg3 Kg1 Kb8 c7+ Ka7 c8R Bb6+ Kh2 Bc2 Qe4 Rd5 Qed3 Bf2 Ra1 Rd4 Rc1 Bb7 Rb1 e4 Rd5 Bg1+ Kh1 Ba8 b6+ Kb7 Rd1 Qdc5 Rc1 Rd1 Rb1 Rd2 Re1 Rd1 Qa4 Ra1 Qab3 Qbc3 Qd1 Ka6 b7 Q3b4 Qbd3+ Ka5 b8Q Bb1 Qb7 Rf3 Qc6 Rg3 Qca4+ Kb6 Qe8
n3NN2/b2k4/1R2nnqQ/1b2K2B/B1qpB1q1/bQB1n2r/2rq4/2R3QQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h4 e7 f4 g6 h2 g7 h3 c5 f3 b6 a3 c6 a2 b5 Na6 b7 Nf6 b8Q Nc7 g8Q Bd7 Be2 f1N b6 f2 b7 Ne3 Bb2 f1Q Nf3 Rh6 Qa7 Rc8 b8Q Na8 c7 Nf5 Qb4 Ng7 Qbb6 Ne6 Nbd2 Bb5+ Nc4 Kd7 Rb1 a1B Bc3 Qe8 Rg1 h1Q Ng5 h2 Nh7 Qhg2 Qc1 Qff2 Bh5 h1Q Qa4 Qf4 Qb3 Qhh2 Re1 Qa2 Qg1 Qg4 Qb7 Qhb2 Qf4 Qf2 Rec1 Bb2 Qfh2 Ba3 Qa6 Bc5 Qhh1 Ba7 Rb2 Bc6 Nd6 Qeg6+ Qe4 Qh2 Ne8 Qhh4 Qba4 Qhg5 Rb6 Qb3 Q4c4 Qa4 Qb3 Bb5+ Kc2 d3+ Kb2 d2 Qeh1 Qg8 Kc2 Qaf4 Kb2 d1N+ Kc2 Ba4 Kd3 d4 Kc4 Qh2 Kd3 Q5g6+ Kc4 Ne4 Kd5 Qd2 Ke5 Bc6 Ng7 Bb5 e8B+ Ke7 Bc6 Nf6 Ne8 Ne3 Be4 Kd7 Bb4 Rb8 Bc3 Ba3 c8B+ Kd8 Bd7 Rc8 Ba1 Rc2 Bc3 Ke7 Nd6 Qc8 Ne8 Qc4 Qb7 Ba6 Ba4+ Kd8 Qg7 Bb5 Nf8 Rh8 Nh7 Kc8 Qf8 Kd7 Qh6 Rf8 Bf3 Nfd5 Be2 Rf3 Bd3 Rh3 Be4 Nf6 Nf8+
2kn1Brn/1Q1b1nR1/2b2B1Q/pnq3r1/3q2r1/B1R4R/1NK3BR/b3Nr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 a5 c4 h5 g4 f5 g5 h3 e5 h4 c5 h2 b6 d3 b7 d4 b5 h3 b6 f3 g6 f2 g7 f4 Na3 f3 Nb1 Rh4 Be2 f1Q Nc3 f2 Qb3 Nc6 b8B Nh6 g8R Nf7 b7 Bg7 Nd1 Rg4 Rb1 Nh8 Nf3 Qg1 Ba7 f1R b8B Qh4 Rb2 Nd8 Ne1 Rf5 Qb4 Rfg5 Bd6 Qgf2 Rg1 h1B Bf8 h2 Rg3 Bc6 Rh3 h1N e6+ Kc7 e7 B8d7 e8R Kc8 Qb6 Ng3 Re3 Nf5 Rc2 Nh6 Nb2 Qg1 Bf3 N6f7 Bg2 Be5 Kd1 d2 Rg7 Rb8 Rcc3 Qh5 Kc2 d1R Re2 d3+ Kb1 d2 Kc2 Qd4 Qa6+ Bb7 Qh6 Bbc6 Bb6 Bf6 Bc7 Be5 Bcd6 Ra8 Bde7 Rb8 Bf6 Ra8 Ned3 Rf1 Ne1 d1N Rd2 Nf2 Re2 Ne4 Rd2 Ned6 Rf2 Bd5 c6 Nb5 c7 Bb7 Nbd3 Bbc6 Bca3 Qc5 Nb2 Qh4 Rh2 Rb8 Rf3 Ra8 Rfh3 Qhf2+ Kb3 Qfd4 Kc2 Kb7 Na4 Qdd6 B8e7 Ne6 Rc4 Rg8 Bf8 Ba1 Nb2 Ned8 Rcc3 Qdd4 c8Q+ Kb6 Qa8 Kc7 Qa7+ Kc8 Qb7+
3r1Q2/q1N1Nb1Q/Q1K1pn2/3R1q2/N2k4/Q5b1/rb2q1BB/rnbr1NR1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Ke6 b4 Kd5 g4 a5 g5 h5 f5 h3 f6 e3 Kd3 a4 g6 h2 c3 h4 g7 a3 f7 h3 b6 e2 b7 e1B b5 a2 b6 Qc7 Bd2 Nc6 b8N Nf6 g8N Na7 Qa4 Bh6 b7 Nb5 Qb4 Na3 Nf3 e6 Be3 Bg3 Nfd2 d6 Qb2 Bd7 Na6 Be8 b8Q Ke5 c4 d5 c5 Ra7 f8Q Bf7 Nc3 Ra8 Rc1 a1B c6 Ra7 Qc2 Bb2 Qc5 Ra8 Ke2 d3+ Kf3 Ra7 Ne7 Bhf4 Qcb4 d4 Rd1 Bh6 Qg8 Qd7 Qg7 Rd8 c7 Bg5 c8Q Qc7 Nb3 d2 Bg2 d3 Qf8 Qb6 Rhf1 h1Q Nc7 h2 Bg1 Ra4 Qa6 Qa7 N3d5 Bh6 Nc5 Ra5 Ne3 Bhf4 Rde1 d1Q+ Re2 d2 Qh7 Qc2 Rd1 Qf5 Ree1 Nb5 Ke2 Ra2 Na4 Bh6 Qa3 Bg5 Bf1 Qhe4 Bg2 h1R Bh2 Rf1 Rc1 Bh6 Rc5+ Kd4 Re5 d1R Rc5 Rda1 Rec1 Rf3 Rg1 Rff1 Kd2 Nc3 Rb5 Qef3 Rd5+ Ke4 Kc2 Nb1 Kb3 Rd1 Kc4 Bhf4 Nf1 Bfc1 Rd7 Ke5 Kb5 Qe2+ Kc6 Qed3 Bh3 Qe2 Rd5+ Ke4 Rc5 Kd4 Bg2 Bg8 Ra5 Bf7 Rd5+
nq2n1qb/5Nr1/p3rB1K/4q3/b1Bkq2Q/3QRR1r/B6B/2QNn1Qn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Ke6 c4 Ke5 g4 d5 e4 h5 g5 f5 c5 a6 b6 d3 b7 h3 b5 d4 c6 f3 c7 h4 b6 f2 g6 h2 g7 f4 Ne2 f3 Ra4 h3 Na3 Nf6 g8B Ra7 Nc3 Bd7 c8Q Ne8 Nd5 Bg7 Ne3 Rh5 Qe1 Bh8 Nd1 Rh7 Rc4 Ba4 Rc3 Nd7 b8B+ Rc7 b7 Nb6 Bb3 Na8 Nb5 Qe7 Be2 f1R Qh4 f2 Bb2 Re1 Nd6 f1Q Ba2 Qff8 Rf1 h1Q Rf3 h2 Ra3 Rd7 Qc1 Qg8 Bc7 Qhg2 b8Q h1N Qa7 Qf6 Rc3 Rdg7 Ba1 Qd8 Rb3 Qb8 Nf7+ Ke6 e5 Kd5 Re3 Qe4 e6 Rh5 e7 Rh6 Qg3 Rh3 Qh4 Qb5 Rg3 Qf3 Nf2 Nf6 e8Q Qb8 Qe7 Ne8 Bf1 Re5 Qh7 Re6 Qeh4 Qf5 Rf3 Qf6 Kd1 d2 Kc2 d1N Kd3 Qg5 Bh2 Ne3 Kd2 d3 Bf6 Qge5 Qg6 Rd6 Qg1 Ng2 Qd7 Ne1 Be2 Qb2+ Ke3 d2 Bc4+ Kc5 Kf4 Re6+ Kf5 Qa1 Rbe3 d1Q Qcd2 Qdb3 Qc1 Q3b7 Qd3 Qd4 Nd1 Qdd6 Qg6 Qe4+ Kg5 Qdd4 Kh6 Qde5 Qe2 Kd4 Qg1 Ng2 Qef1 Ne1 Qd3+
2r1kN1R/4n1B1/NR2r3/4p3/2nRKQ1q/3R3b/b1b1B1Qn/bbNbn2N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 d5 b4 e3+ Kd3 a4 c4 e2 f5 a3 g5 a2 c5 h3 g6 h4 b6 h2 b5 h3 b7 Nf6 b6 Nc6 b8Q Ra6 g7 Ng4 g8R e5 b7 Ne7 f6 Re6 c6 Bd7 c7 e1N+ Kd2 d3 c8R d4 Rg6 Rg8 Ne2 Rh8 Rg1 h1B Nbc3 h2 Rg3 Bd5 Ne4 h1B Nf2 Nh2 Qa8 Bhe4 b8N Bf5 Rb1 a1N R6g4 Ba2 Qg2 Nac2 Na6 Ne3 Nh1 Bh6 Qa4 Nc4+ Kd1 d2 Rb6 Bg5 Rd3 Be3 Ba3 Rf8 Nc1 Be4 Ke2 Bg1 Rc3 Beb1 Rd3 Nf5 Rc7 Ncd6 f7+ Ke7 Ra7 d1B+ Kd2 Rg6 Qb3 Bdc2 Rf3 d3 Ra8 Bd4 Qc4 Ba1 Bc5 Rf6 Be3 Bc8 Bh6 Kd7 Rfg3 Rg6 Qb4 Qh4 Bg7 Ne7 Ke3 d2 Be2 d1B Qbe4 Kd8 Qf5 Rh8 Rd4 Rf6 Qf4 Rg6 Nb8 Bh3 Na6+ Kd7 Rc8 Re6 Ra8 Rc8 Rab8 Rc6 Rh8 Rc8 f8N+ Ke8 Rf3 Nd3 Rg3 Nc4+ Ke4 Ne1+ Rgd3
1bB4r/Nr2b1k1/1BqQ1R2/3B3N/Qn2Q3/2nb2K1/1nR1pQbB/rr1n4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 e5 f4 h5 Kf2 d5 c4 a5 g5 a4 g6+ Kg7 c5 h3 c6 a3 c7 d3 f5 a2 b6 h4 b5 d4 b7 d2 b6 e3+ Kf3 d3 Qc2 d1N Kg4 e4 Qa4 h2 Ne2 h3 Nbc3 d2 Kg3 Qd5 Bg2 Nf6 Nb5 Ra7 Nf4 e2 Rf1 Nc6 b8B h1R b7 e1B+ Rf2 Bd7 c8B e3 Be5 e2 b8Q h2 Qd6 Rb7 Na7 Qb5 Bd5 Nb2 Bd4 d1N Bb6 Bc3 Bce3 Be6 Rc1 a1R Rc2 Be7 Rf1 Qa6 Bg1 Be5 Rf3 Nb4 Rf2 Kh6 g7 Bd7 g8Q Bb5 Rf1 Bd3 Qge8 Kg7 Qec6 Rb1 Qc4 Qb5 Qe4 Qc6 Rf3 Nc3 Rf1 Ng4 Rf2 Ne3 f6+ Kh6 f7+ Kg7 Qf3 Ned1 f8Q+ Kh7 Qf5+ Kg7 Q3e4 Ra1 Rf3 Rb1 Bge3 Re1 Bg1 h1B Bh2 Ra1 Qd4 Rf1 Qfe4 Bg2 Qf2 Re1 Qdc5 Bb8 Qd6 Qe8 Nh3 Qc6 Rf6 Ne3 Nf4 Reb1 Bc7 Ned1 Bd8 Rc1 Bb6 Rcb1 Nh5+
BKNQNb2/1Qn2k2/p5B1/n1n1qr1B/5BRp/Qbq1R3/3b1Qr1/q3r3 b - - 0 1 illegal: No possible last move, all moves rejected
3BrRq1/1Q3B2/n1b4b/br3rnR/n1BQRb2/1p4B1/kpb2NN1/2R4K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 d4 c5 a4 b5 h4 g5 e4 f5 a5 c4 a6 b3 a7 g3 h5 f3+ Kh3 c3 h6 b2 h7 c2 Bd3 g2 Kh2 f4 Qe2 b4 Be3 c1B Ba6 f2 Qg4 f1R Bf2 f3 Qh5 b3 Qf7 g4 Nc3 Nf6 Bh4 f2 Nh3 g1N Ra4 Nfd7 Nf4 Nb6 Bg3 Bb7 Ng2+ Bf4 Bc4 Na6 Nd1 Rb8 a8R Bc6 Qb7 Nh3 Rg1 Qe8 Kh1 Bh6 Rb4 Rf8 h8R Ng5 Rh7 Na4 Rh8 Bg7 Rh5 Re1 Rf1 Rf5 Rg1 f1B Nf2 Bd3 Rf1 Re2 Rc1 Rd8 Rb8 Qg8 Ra8 Rd7 Rf8 Bc2 e5+ Ke7 e6 Kd6 e7 Bh6 Bh2 g3 e8B Re6 Bf7 Re8 Qa7 Rb7 Qb8+ Kd7 d6 Rbb5 Qb6 Bb7 Qa7 Kc6 d7 Kd6 d5 Bc6 Qa8 Kc5 d8Q Nh7 Ne1 Ng5 Qb7 g2+ Kg1 Qg6 Bg3 Qg8 Kh2 g1B+ Kh1 Bh2 Ng2 Bc7 d6 Ba5 Bh4 Bf4 d7 Kd4 Bg3 Kc3 Qdb6 Kd2 d8B Kc3 Re1 Kd2 Re4 Kc1 Qe3+ Kb1 Qd4 Rb6 Rb5 Ka2 Rc5 Rb5 Be2 Bd3 Rc1 Bc2 Bec4
2qb1R1B/1N1Bb3/1Bp1rk2/1B2n3/Q1R2nb1/N1b5/1pbQ1K1n/2rrR2R b - - 0 1 illegal: No possible last move, all moves rejected
b2B1r2/NQ2Nb2/6rk/1Bn3Q1/3Q1r1B/rR2Rqn1/2qB1rpp/2b1K1Q1 b - - 0 1 illegal: No proof kernel
r1kRQ2q/R2b4/1R2B3/1br4B/2rB2p1/1K2b1N1/pB1RNnbq/b2Qn3 b - - 0 1 illegal: No possible last move, all moves rejected
Q7/bB1rRBNb/1r1Nb1nK/1B3Npn/4q1N1/qb2B1rQ/R6p/1b5k b - - 0 1 illegal: No proof kernel
Rq5b/2qR1k2/q1pp1rq1/1R2QrB1/5Nq1/R1BnNr2/K5BB/4Qn1b b - - 0 1 illegal: No proof kernel
1R2q1B1/Kbn5/1pqN1rqN/1b4b1/1b1b3Q/kB1RB3/1pQr3B/n1Q2Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kd6 a4 Kc5 d4+ Kd6 h4 g5 a5 c5 a6 f5 a7 b3 h5 f3 Ke3 g3 h6 g4 h7 c4 Nh3 g2 Nf2 g1Q Na3 c3 Qc2 b2 Bc4 g3 Rb1 g2 Bb3 Qe7 Rh3 f4+ Kd3 Qf7 Kc4 Nh6 Kb5 Na6 Kb6 Ng4 Be3 Nc7 Rg3 Rb8 a8Q Qe8 Ka7 Qc1 Rh3 g1B Rg3 Rg8 h8Q Rg6 Qh3 Rf6 Qf1 Be7 Ra1 b6 e5+ Kd7 e6+ Kd6 Rh3 Bb7 Rh8 Bf8 e7 Rd8 Qc8 Qb1 Qcc1 c2 Rh3 Qc6 e8B Be7 Bf7 Bf8 Nh1 f2 Bg8 f3 Ng3 Qe8 Bh6 Ne3 Nb5+ Ke7 Nd6 Rd7 Qcd1 c1B Qc2 Bd2 Qcc1 Nc2 Be3 Rd8 Ra3 Na1 Rh8 Qbg6 Qf5 Bh6 Qfc2 Bg5 Ngf5+ Kd7 Nh6 Bb4 Bc4 Ke7 Rd3 Qc6 Bb3 Rd7 Qg2 f1Q Qge2 Qh3 Qef1 f2 Ne8 Qhe6 d6+ Kf8 d5 Rd8 d7 Ke7 Nd6 Qef7 Qfe2 f1B Qee1 Qe8 Qee2 Rc8 d8B+ Kd7 Be7 Rd8 Qf3 Be2 Qff1 Bf2 Ne4 Bg1 Bd6 Bf2 Bh2 Ke7 Rc3 Bb5 Nd6 Rd7 Rd3 Rd8 Bef4 Bd4 Be3 Kd7 Ndf7 Ke7 d6+ Kd7 Ba4 Ke6 d7 Kd5 Bb3+ Qc4 Q2b1 Kc5 Nd6 Qc2 Bgc4 Qg2 Qbc2 Qc6 Be6+ Bc3 Bg8 Kb4 Ne4 Ka3 Nd6 Rb8 d8Q Bb4 Qe7 Rd8 Qe4 Rd7 Qh4 Re7 Beg1 Re2 Be3 Rd2 Bgf7 Qee4 Rb8 Qee8 Bg8
4rQrq/N4p1n/1K2RQ2/1bN1R2R/p3q1n1/1qbrNB1k/1qN4B/3q1R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 e4 a5 g4 h5 b4 a4 e5 d3 b6 d5+ Kb5 d4 c4 d2 b7 d3 e6 f3 e7 h3 e8R Kh4 g5 f2 c5 h2 c6 Rh6 c7 Rg6 Nf3+ Kg3 Ne1 h4 Ng2 h3 Re6 Bd7+ Kb6 Qe7 c8N Nh6 b5 Qb4 Ne3 Ng4 Na3 Qb3 Na7 Bg7 Bg2 f1Q Nac2 Qf6 Bf3 Qfb2 Qf1 Bc3 Rb1 Rg7 g6 Rg8 g7 d1R Ra1 Re8 g8R d2 Rg5 Bc6 Rge5 Nd7+ Ka6 Kh4 b8Q Nf8 b6 Nh7 b7 Bb5+ Kb6 Rg8 Qd6 Rae8 b8N Kg3 Na6 Kh4 Rg1 h1Q Nc5 h2 Qf8 Qg2 Qf2+ Kh3 Rf1 h1Q Rb1 Qhh2 Rh1 Re1 Qf1 d1Q Bd2 Re2 Be1 Rd2 Bg3 Rd7 Qf2 Rd3 Rf1 Qhh1 Bh2 Qd2 Rbe1 Qd1 Rg5 Qg3 Rh5+ Qh4 Bc6 Qhd5 Qf6 Qe5 Bf3 Qe4 Rhe5 Qh6 Re2 Qg7 Ref2 Qh8 Rg2 Nf2 Rgg5 Ng4 Rh5#
2B1bB2/1p2n2N/1Q3Q2/4Q3/1K1b3b/1n1N1NpQ/1qrRn2n/n1rkNRq1 b - - 0 1 illegal: No possible last move
1RK5/8/B3rB2/4rr1n/3bqQrp/qb1NQQ1Q/R1pBq3/1N1k1nBb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 f5 d4 c5 e4 h5 g5 a5 b3 a4 d5 h3 b6 h2 g6 c3 b7 c4 g7 c2 d6 a3 d7 a2 Ke6 c3 e5 f3 Bb2 c1R Qe1 f4 Qe2 c2 Bd4 h4 Qf2 Ne7 g8Q Bg7 Na3 Ra6+ Bb6 Kc3 b4 Qe8 b5 Rh5 Ne2+ Kd2 Nb1+ Kd1 Qh7 Rg5 Qf5 Nd5+ Kd6 Ra5 d8B Nd7 b8Q Rg4 e6 Ne3 Kc7 Nf6 e7 Nh5 Qb7 Qg6 e8Q Bd4 Bf6 Be6 Qd7 Qh7 Kc8 Bb3 Qg3 f2 Qbf3 Ra6 Ba7 Re6 b6 Qe7 b7 Qa3 Rg1 h1B b8B Qa4 Qc7 Qc6 Qh3 Qe4 Qe7 Re5 Bd6 Re6 Bb4 Re5 Bg2+ f1Q Bd2 Qe1 Qa3 Nf1 Qe3 f3 Nf4 f2 Nd3 Qe2 Qff4 Qh7 Bb7 Qe4 Qf8 Re6 Ba6 Re5 Na3 Re6 Rb1 a1Q Rb2 Qa2 Nb1 Qa3 Rg2 Nfg3 Qff3 f1R Ra2 Rf2 Qd6 Nf1 Qdg3 Rg5 Qd6 Rge5 Rg8 Rg2 Rf8 Rg4 Qc7 Rf5 Qcf4 Qa8+ Kc7 Bc5 Qc6 Qf3 Qed4 Ke2 Bh8 Re1 Rb8 Kd1 Bf6 R1e5 Kc8 Qe2 Qcf3 Qe4 Qd7 Bd6 Bg1 Bc5 Qd4 Bb6 Qdf2 Bd4 Q2e3
1R2n2R/qB1N2r1/n1b5/1B1QQ1Q1/b1pq2Bp/4b1rN/2k3rn/BQn1K3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e3 h3 d4 c3 b4 Ke7 g4 Kd6 e4 c5 g5 f5 b6 h5 b5 a5 b7 a4 d5 Ke5 g6 f3 d6 f2+ Ke2 f4 b6 c4 d7 h4 g7 h2 Bh3 f1N Nd2 Kd4 e5 c2 e6 Kc3 e7 a3 e8B a2 Nb3 Rh7 Nc5 Nf6 g8B Ra3 Bd5 Rg7 Bg4 f3+ Kf2 Bd6 Nh3 Bf4 Be4 Qc7 d8Q Bd7 Rb1 a1Q Bb2+ Kb4 Bc6 Ra2 Qd5 Be3+ Ke1 f2+ Ke2 Qf4 Qg5 Qc7 Rd1 Na6 b8Q Qb7 Qbe5 Qa7 Ba8 Bb5 b7 Ba4 Bc3+ Ka3 b8Q Rb2 Rd6 Ra2 Bec6 Ne8 Rh6 Rb2 Rg1 h1B Rh8 Nh2 Rb1 f1R Qdd4 Bg2 Nd7 Rf3 Ke1 c1N Qde4 Rc2 Qbd6+ Ka2 Rb8 Rg3 Bb5 Kb3 Bb7 Rb2 Q4d4 Bc6 Q4d5 Rbg2 Qb4+ Kc2 Bb2 Qa2 Ba1 Qb2 Qef4 Qf6 Qc7 Qf4 Qce5 Qfd4 Qb1+
5B2/1qn1Rq1R/1Q3q1r/5nNR/p1p1B2R/Nb1bb3/r2Q1r2/NbN2k1K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Ke6 Kg2 Kd5 e4+ Kd4 b4 a5 e5 h5 d3 f5 g5 c5 b6 f3+ Kh2 f4 e6 c3 e7 f2 e8R f3 b5 h3 g6 c2 g7 h4 b7 Ne7 g8R Nf5 b6 Be6 Rg7 Na6 b8Q Nc7 b7 Rh6 Ree7 Bb3 Qd2 c4 Ba3 c1R Rh7 Rc2 Bg2 f1B Bd6 a4 Na3 f2 Be4 Ra2 Rb1 Ra5 Qa7+ Rc5 b8N Be2 Qb6 f1Q Re1 Qd7 Re5 Qf7 Na6 Be7 Nb4 Bg5 Be7 Be3 Bf8 Qf3 Re7 Qf6 Rd1 Qh5 Rf1 Qhf7 Rf4 Bf1 Qe2 Kc3 d4 Rc6 Qf2 Bd3 Ne2+ Kd2 d5 Rc5 Kg1 h2+ Kg2 Rb5 d6 Ra5 d7 h3+ Kf3 Ra8 d8N Rb8 Ne6 Bb1 Bg7 Rf8 Ng5 Bd3 Rh4 Bb1 Rc1 h1Q+ Qg2 Bd3 Nbc2 h2 Na1 Bb1 Rc2+ Ke1 Rd2 Bd3 Nc1 Bb1 Rd5 Bd3 Kg4 Bb1 Qd2+ Kf1 Kh3 Bd3 Rc5 Bb1 Bc2 Qb7 Be4 h1B Kh2 Bf3 Ra5 Be2 Kh1 Bed3 Rae5 Rh8 Bf8 Rg8 Ne6 Rg2 Rd5 Rf2 Rb5 Nd6 Rbh5 Nf5 Ng5
n3r3/1BRB1qN1/1n1n1R2/Kp4k1/3Qp1n1/1QBb2q1/1bNbq3/RrB3R1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 a4 Kf7 d4 Kf6 Kd2 c5 g4 b5 f4 h5 f5 e5 d6 c4 d5 h3 d7 h4 a5 b3 Kc3 e3 d6 e2 Kb4 e1Q+ Qd2 b2 a6 h2 a7 h3 Na3 b1N Nc2 c3 Qd3 Bh6 Qc4 Qe8 d8Q+ Ne7 d7 Bd2 Qc5 Qf7 Qg8 Na6+ Ka5 Nc7 d8B Qg3 Qb4 Na3 Nf3 e4 Qc5 Be6 Ng5 Bc4 Rg1 h1Q Ne6 h2 Bh3 Bd3 Ng7 Qhg2 Qd4+ Kg5 f6 Nc8 Be7 h1N Bb4 Rb8 a8B Nb6 Bc6 Re8 Bb7 Qe6 f7 Nf2 f8R Nca8 Rf6 Qf7 Rc6 Q2f3 Rc7 Qe2 Rf1 Qff3 Qb3 Qf7 Ne1 c2 Bc3 Nd1 Rf6 Nf2 Bb2 c1B Nc2 Kh4 g5 Ng4 g6 Nac4+ Ka6 Nd6 Ka5 Kg5 Ba3 Ne5 Bd7 Ng4 Bb2 Rh1 Ba3 Bf4 Bab2 Bcd2 Bc1 Rd1 Nf5 Be5 g7 Re1 g8R+ Kf4 Rh8 Kg5 Rh1 Rf1 Ng7 Rg1 Bb2 Rc1 Rg1 Rb1 Qf2 Bd4 Bc1 Be5 Bb4 Bc3 Qd4 Bb2 Bc3
Rn2r1Q1/1N1Q1r2/6qp/1Kb2n1N/1Rr1b1p1/2N2Bb1/N1Q1q1Q1/4Bknr b - - 0 1 illegal: No proof kernel
5N1r/2B4r/1b2n2p/qrQK1Rp1/1N2nN1q/b1B1Nbk1/1n2QB1n/4R2B b - - 0 1 illegal: No proof kernel
R1QR1RBr/bN4KR/nrnNb1p1/8/1n1B2r1/q1N4b/1NQ3p1/2r1q1k1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 e4 f5 c4 a5 b4 d5 h3 Kg3 h4 Kf2 c5 g3 h5 d3 h6 a4 c6 g6 b6 f3 b5 d2 h7 d4 c7 d3 b7 a3 b6 a2 Rh4 f4 Bb2 Ne7 Kf6 Na6 b8R Be6 c8Q Qd6 e5 Qa3 b7 Nc6 Nc3 Bc5 Nge2 Ba7 Nc1 Kg1 Qc2 d1R Kg7 d2 Bc4 f2 Nd3 f3 Rd4 f1N Rd8 Rc1 Bb3 d1B Bd5 Bh3 e6 f2 e7 g2 e8N Ne3 Bg8 f1Q Nd6 Bdg4 Rf8 Qe1 Rd8 Bb6 Rf8 Ra7 Ra8 Bd7 b8N Bde6+ Nd7 Rb7 Rb1 Rb8 N7c5 a1R Ncb7 Ba7 Rd8 Ra2 Ba1 Nd5 Nb2 Ndb4 Rf8 Rd1 Rc1 Rd4 Rd1 Rg4 Rd5 Qb3 Rh5 Ra4 Rd8 Qa3 Rf5 Ra5 Rff8 Rc5 Na2 Ra5 Nc5 Rb6 Nd1 Qa4 Ncb7 Rd5 Be5 Qa3 Nb2 Rd1 Nc3 Rc1 Bd4+ Qf2 Rf4 Qe3 Bf7 Rf8 h8R Re8 Rh7 Rh8 Bg8 Qf2 Rf5 Qe3 Rf2 Qe1 Rff8+
B4Q2/2qn2KR/3bQRp1/1RQrk1q1/p3Nn2/1qr5/4bqnr/B3RQN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 e4 f5 h4 d5 c4 a5 h5 f3 Kg3 d3 Kf4 a4 b6 g6 c5 d2 e5 g3 b7 f2 b5 g2 b6 d4 h6 d3 c6 Nd7 b8Q Bb7 c7 Bd6 c8Q Ne7 Kg5 f4 h7 f3 Kh6 Ba6 b7 Nd5 Nc3 Qc7 Ne4 Nf4 Kg7 Bc4 Be2 f1Q Bb2 Qf2 Qf1 d1Q Rh5 d2 Rf5 Kd5 Rf6 Qb3 e6 d1R e7 Rd3 e8Q Ra5 Bd1 Rc3 Qe6+ Kd4 Be2 Rd5 Re1 Bd3 Bd1 Bb5 Ba1 Be2 Nh3 g1Q Qa7+ Rc5 b8R Qg5 Rb6 Rd5 Ng1 Qg4 Qf8 Qg5 Qef7 Ke5 Rb5 Qe3 Qc5 f2 Qg2 f1N Q7g8 Bh5 Bf3 Qf2 Qgf7 Ne3 Qf1 Nh3 Bg2 Be2 Bf3 Ng2 Q7g8 Qf5 Qe6+ Kf4 Qee7 Rdd3 Nd2 Rd4 Ba8 Rd5 Qef7 Ke5 Ne4 Qg5 Qc8 Re8 h8R Nhf4 Qb8 Rf8 Rh2 Rh8 Qbf8 Rh4 Q7g8 Rg4 Rh8 Rh4 Rh7 Rh2 Qe6+
k3rb2/1q5Q/B1pR1r1b/1RBNnqN1/r1Q1p3/7b/2rQ1QN1/1n1KNn2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 f4 a5 d4 h5 b4 e5 d5 a4 d6 c3 f5 h3 f6 c2 b6 Kc6 b7 a3 f7 h2 d7 a2 g5 e3 g6 h4 g7 e2 Nf3 h3 Ba3 c1R Nc3 Qg5 Nd5 Rc2 Rb1 a1B Qd2 Ne7 g8Q Rh6 Qh7 Rf6 Nf4 Bd4 Ng2 Nd5 d8N+ Kb6 b5 Ka7 Bb4 Be3 Ne6 Qf5 Neg5 Nc6 b8N Nc3 b6+ Kb7 Bd6 Ra4 Nd7 Ka8 Rb5 Nb1 Rg1 h1N Bc5 Ng3 Rh1 Bg7 f8Q h2 Qf7 Bf8 Qc4 e4 Rg1 Ne5 Rh1 c6 Rg1 Rf7 Nf6 h1R Nd5 Rh5 Rh1 Rf6 Rh3 Rhh6 Rh4 Rhg6 Rh6 Rg8 Rg6 Rf7 Rd6 Rf6 Nf7 Beh6 N7g5 Be6 b7+ Kb8 Kf2 Bc8 Ke3 e1Q+ Be2 Qc1 Nfe1 Qb2 Bd3 Nf1+ Ke2 Bfg7 Kd1 Re8 Ra5 Qb6 Rb5 Bf8 Be2 Qg6 Bd3 Bh3 Qf2 Ka7 Qd2 Qf5 b8Q+ Ka6 Qf2 Qa7 Qd8 Qb7 Rb6+ Ka7 Be2 Qc8 Rb5+ Kb8 Qa5 Qf5 Qd2 Ka8 Bg4 Qg6 Bd7 Qf5 Bc8 Qf7 Ba6 Qa7 Qa2 Qb7 Qc4
r3r2B/2K1n2p/QBb1q3/qB2nR1N/n1r3RN/5pQ1/1N1b1B1N/2rk1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 c4 f5 b4 a5 e4+ f3 c5 d5 c6 h3 c7 a4 b6 a3 b7 h2 b5 a2 b6 f4 Qb3 f2 Nf3 d3 Nbd2 d4 Nh4 Ra4 Rg1 h1R Nc4 d2 Bb2 d1Q Qg3+ Kh5 Be2+ Bg4 c8Q Na6 b8B f1R b7 f3 Ba7 d3 b8B d2 Bf2 Qb3 Bc7 d1N Bcb6 Nb4 Qa6 Be7 Bc3 Bf5 Nb2 Bg5 Bb5 Bd2 Nd3 Bd7 Kd6 Nb2 e5 Re1 e6 Nc6 e7 Rc4 e8N Na4 Nf6+ Kh6 Ng4+ Kg5 Rc1 a1Q Rc2 Qa8 Kc7 Re8 Rb2 Qf1 Nh2+ Bg4 Rb1 Nge7 Re1 Rhg8 Bh8 Qa2 Re6 Ne5+ Rc6 Qb3 Rc5 Qa2 Qh3 Bd7 g4 Qd5 Qg3 Bc6 Rg2 Qe6 Rg1 Kh6 g5+ Kh5 g6 Rgf8 Ng4 Kg5 g7 Ra8 g8N Rfe8 Rg2 Qa3 Rg1 Qb4 N8f6 Qa5 Rg2 Rg1 Nh5 Rh1 Ng6 Kf5 Nh4+ Ke4 Nh2 Rg1 Be1 Ke3 Bf2+ Ke2 Rd5 N5g6 Rf5 Ne5 Qh3 Kd1 Rg4 Rc1 Qg3 Rg2 Be1 Re2 Bf2 Re4 Qg1 Rb4 Qg3 Rbc4 Nb2+
q5N1/3krBp1/qnR5/1N3Bb1/2bNQ2R/p3r1nK/1q2qBn1/QN2B1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 Kg2 d5 b4 f5 c4 g3 e4 d3 h4 f3+ Kh3 d4 c5 g2 c6 d2 h5 d3 b6 a4 c7 a3 b5 f2 h6 Qe7 b7 Qd8 e5 f4+ e6 f3 b6 Be7 h7 Ra7 Ne2 g1R Nd4 Nf6 Nb5 Nbd7 b8N Ba6 c8N Ne4 b7 Bg5 e7 Nb6 Nc6 Ng3 b8B Kd7 Ncd4 Re8 h8Q Rb7 Be2 f1N Qh4 f2 Ba7 Ne3 Qe4 Ng2 Qf1 d1Q Bd2 Rc7 Be1 d2 Bd3 Qe2 Ra2 d1Q Rc2 Qdd2 Rc6 Qb2 Rh2 Rf8 Bc2 Rf3 Rh1 Qf8 e8B+ Kd8 Bd3 Re3 Bf7 Kd7 Ne7 Qa8 Ng8 Rb7 Bb4 Rc7 Qc1 f1Q Be1 Qf6 Qc3 Qb3 Qa1 Qbb2 Qe5 Qd6 Bf5+ Qe6 Qe4 Rb7 Nd6 Bc4 N6b5 Rb8 Bf2 Re8 Bb8 Re7 Bf4 Rd3 Bd2 Re3 Bde1 Rb3 Rc8 Na4 Kh2 Re3 Rc5 Kd8 Rc7 Qea6 Rc6 Nb6 Kh3 Qec2 Kg4 Qd2 Rh4 Qdc2 Kh3 Qe2 Ne6+ Kd7 Ned4+
n2qBB2/2bp1N1r/3qnR1n/Q1N1Rq2/1BRp1kbB/Q7/1r4r1/KR1r4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 Kc2 Ke5 g4 a5 e4 h5 b4 f5 Kb2 h3 c5 f3 g5 h2 g6 f4 c6 f2 b6 f3 c7 a4 b7 h4 g7 h3 b5 Qh4 b6 Ra5 Bd3 f1R Qe1 f2 Bh6 Qg3 Nd2 Na6 b8B Bb7 c8R+ Nc7 Rb1 Rh7 Nb3 Rb5 Qa5 a3+ Ka2 Bc6 b7 Bd6 Bg5 Nh6 g8Q Qf4 Qf8 Rd1 Bc2 Qf6 Bh4 f1Q Ba7 Qh8 b8B Na8 Bc5 Rb7 Qf3 Qd8 Bba7 Bb8 Bf8+ Bb5 Bac5 Be2 Qd3 Bg4 Rc6 Rd2 Rf6 Rg2 Rc1 Rb6 Kb1 a2+ Kb2 Rc6 Bb4+ Rc5 Qc3 a1N Ka2 Qf3 Qb2 Bd6 Qba3 Bc7 Kb1 Qf1 Bd3 Qf3 Bc4 Qf5 Bf7 Kf4 Rc2 Ke3 e5 Ke4 Rc1 Rcc2 e6 Rcd2 Rc4 Rb2+ Kc1 Ke3 Nf3 Ke4 Rf1 h1Q e7 Qh2 e8R+ Qhe5 Re7 h2 Be8 h1R Ng5+ Ke3 Re1+ Kf4 Nf7 Qd6 Re3 Nc2 Rg1 Ne1 Re5 Nf3 Nc5 Ng5 Rge1 Ne6 Rd1 Rbc2+ Kb1 Rb2+ Ka1 Re1 Rdc1 Rd1 Rb1
5QNR/1qp3BK/n2N2R1/4n2n/N2BB1N1/1pr1r1b1/BQb2k1b/4nq1q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 h4 Kd6 d4 b5 a4 f5 e4 g5 a5 g3+ Kf3 g2 h5 b3 h6 b2 h7 b4 a6 Qd7 a7 Qf7 Nh3 g1B Qe2 Qf6 Be3 Ne7 Nf2 Nec6 Ra6 Bh2 Nc3 b1Q Ng4 Qh6 Na4 Qb3 Rb6 Na6 Nf6 Bb7 Qc2 Re8 a8B Re5 Qb2 g4+ Kg2 g3 Kf3 g2 Bc4 Rg8 h8B Re6 Bg7 g1N+ Kf2 Rh8 Ng8 Nf3 Ke2 Ne1 e5+ Kd7 d6 f3+ Kd2 f4 d5 f2 Bd4 f1N+ Ke2 f3+ Kf2 Ke8 d7+ Kf7 d8N+ Kg6 d6 Kg5 d7 Kh4 Nf7 Ng3 Nd6 Nh5 d8Q+ Re7 e6 Ne5 Qc8 Be4 Bc6 Bc2 Be4 Re8 e7 Qc1 Bf7 Qd5 Qb8 Qb7 Ba2 b3 Rc6 Qd1 Ke3 Kg3 Rb6 f2 Qa8 Rb8 e8N f1Q Nef6 Re8 Rc6 Re6 Qe8 Be7 Qf8 Rh7 Bd3 Kg2 Ke4 Bg3 Rh4 Qh1 Kf5 Qf3+ Kg5 Qff1 Bf5 Bh2 Be4+ Kg3 Bc3 Kf2 Rh3 Rh6 Rh4 Rg6+ Kf5 Rg3 Bd4+ Re3 Kg5 Bd8 Kh6 Re7 Kh7 Rf7 Nd5 Rf3 Rb6 Bg5 Ndf6 Bgf4 Rc6 Bfg3 Rb6 Nf4 Rh6 Nh5 Rg6 Qc6 Rb8 Qb7 Qe8 Ke2 Nh6 Rd3 Qf7 Rc3 Rh8 Rfd3 Qf8 Re3 Nhg8 Kf2 Ng4+
2q1R1N1/N7/kN2Q3/2pBn2b/RbbBbNQb/1np2BB1/r1r1br2/4K3 b - - 0 1 illegal: No possible last move, all moves rejected
3Q4/3kqr2/Rp4Kb/3rrNpB/2r2BRN/2Bb1nnr/1R2b3/3BRrQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 e4 g5 a4 c5 d4 f3 Kg3 f2 h4 c4 h5 c3 a5 c2 h6 b3 d6 b2 d5 b6 e5 Ba6 h7 Qe7 e6 Bc4 d7+ Kd8 a6 Qf7 a7 Bg7 Bf4 c1R Nf3 Nf6 Nd4 Qe7 Be2 f1R Rh4 Nc6 Nd2 b1B N2f3 Bbd3 Ra6 Re8 h8B Ne5 Qe1 Rc3 Bd1 Rc8 a8R Bh6 Qe3 Be2 Qg1 Bcd3 Ra2 Rb3 R8a6 Rc4 Rb2 Kc7 d8R Ne4+ Kh2 g3+ Kh3 g2 Rg4 Ra3 Nh4 Ng3 Rd7+ Kc8 d6 Nf3 Rc7+ Kd8 d7 Ra5 Rca7 Rd5 Bhe5 Rh8 Ra1 Rh7 R7a6 Re1 Bf6 Rf7 Rc1 Bf1 Bh8 Ree5 Rcb1 Bfe2 Rc1 Qc5 e7+ Kc7 e8B Qe7 Bd2 f4 Ndf5 Rg7 Bh5 Rf7 d8Q+ Kc6 Qf2 g1R Qh2 Rh1 Bg7 Re4 Bgc3 Ree5 Be3 Nd4 Rca1 f3 Bf4 f2 Rc1 Rf1 Qg1 Nf3 Bb3 Rd1 Bc2 Rd2 Re1 f1R Bd1 Rc2 Rb5 Ra2 Rb2 Ra3 Ne3 Nd2 Bd4 Nf5 Rg2 Bc2 Rg3 Rd3 Bc3 Bb1 Bf3 Bc2 Kg4 Bb1 Kh5 Bc2 Qf8 Kd7 Kg6 Bb1 Bh5 Bc2 Neg2 Bb1 Rg4 Rh3 Qa8 Bbd3 Ne3 Ng3+ Nef5 Nf3 Qd8+
3b1bnk/3Bb2p/1qQ3N1/1rQB4/1R2B1bb/rQ5N/2pnR2B/1bK1Qr2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 d4 Kf7 Kd2 Kg7 a4 b5 f4 e5 g4 c5 a5 b3 f5 b4 a6 b2 g6 b3 d5 Be6 g5 Qc7 a7 Qd6 Bh3 Qb6 d6 Nc6 d7 Nd4 Na3 b1B d8Q b2 Qe1 e3+ Kd1 c3 Rh2 c4 Qd6 e4 Qc6 Bd7 Re2 Nb3 Bg4 Rb8 a8B Nd2 Bb7 Ra8 Nh3 Ra5 Ba8 Rb5 Ra2 Bd3 Bb7 b1R Rb2 Ra1 Rb4 Bb1 Bb2 Be6 Kc1 Be7 Nc2 Ra3 Nd4 c2 Nf3+ Nf6 Nfg1 Rf8 Nf3 Kh8 Ne5 Ng8 f6 Bc8 f7 Bd7 Bf3 Bg4 Bc8 Bd8 Bd7 Be7 Rh2 e2 Bc3 e3 Be4 Bf6 Bd4 Bd8 Bc5 Be7 Bd6 Bd8 Qd1 e1B Re2 Bh4 Qe1 Re8 f8Q Re7 Bc7 Rf7 Qfd6 Rf1 Qdc5 Ba2 Kb2 c1B+ Kc2 Bb2 Bb8 Ba1 Kc1 c3 Bc7 c2 Bd6 Nf6 Bc7 Bb1 g7+ Kg8 Ng6 Bc3 Rf2 e2 Bh2 Be5 Rg2 Bd6 Rf2 B6e7 Rg2 Kf7 g8B+ Kg7 Bgd5 Bf8 Ngf4 Ng8 g6 Kh6 g7+ Bhf6 Qd1 e1B Re2 Bh4 Ng6 B6e7 Qe1 Nf6 g8Q Qa7 Qg1 Qb6 Qh8 Ng8 Qgc5 Rc3 Qhf6 Ra3 Qf3 Kg7 Ngf4 Kh8 Qg3 Ra6 Qb3 Ra3 Ng6+
n3RQB1/n1b1Nrk1/1q5n/2QKn1r1/8/nN2ppqB/2bN1nR1/1BB1N3 b - - 0 1 illegal: No possible last move
1n1RbqBk/B3RBQ1/r2b4/4bn2/4p1R1/5bn1/bR1NQrp1/2K1BnN1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 b4 d5 f4 g5 c4 Kg7 h4 a5 f5 e5 h5 a4 c5 g3 b6 d3 c6 e3+ Kc3 d2 Kb2 d4 b7 a3+ Kc2 e2 b5 e1N+ Kb3 e4 c7 a2 Kb2 d3 b6 g2 Rh4 g4 Be2 Be6 c8B g3 f6+ Kh7 h6 Nc2 f7 Ra6 Bf3 Ne3 Rg4 Bd6 f8R Ne7 Qe2 d1B Bd2 N7f5 Be1 Nf1 Kc1 Ba4 Nd2 Be8 Bd7 Bc4 Be6 Qf6 Rb1 a1B Rb2 Ba2 Rf7+ Qg7 Bd5 Rf8 Re7 Kh8 h7 Rf6 Bg8 Qf8 Rb5 Bae5 Rb2 Nd7 b8B Rf7 Ba7 Nb8 Nh3 g1N b7 g2 Rb6 Nc6 b8R Rf6 Rd8 Nb8 Rb2 Rf7 Qf2 Rf6 Bd1 Rf7 Bb3 Ne2+ Kd1 Neg3 Ng1 Rf6 Kc1 Rf7 Qe2 Rf6 Bbc4 Rf7 Ndf3 Rf6 Bcf7 d2+ Kc2 d1B+ Kc1 Rh6 Nd2 Rf6 Qd3 Bf3 Qb5 Bc3 Qe2 Bce5 Rf4 Ng7 Nb3 Bh5 Rh4 Rf2 Nd2 N7f5 Rf4 Bf3 Rh4 Kg7 Rf4 Kf6 h8Q+ Qg7 Qh7 Qf8 Qh4+ Kg7 Qg5+ Kh8 Rg4 N1e3 Qg6 Nef1 Qg7+
r2NqRbb/nn1B2Q1/q7/1kn2n1B/n2p3N/n2pr1QB/2RB2K1/1N5N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 Kd7 c4 h5 g4 a5 e4 f5 c5 d3 e5 h3 b6 Kc6 g5 a4 g6 h4 g7 a3 b7 a2 e6 f3 e7 h2 e8Q+ Nd7 b8N+ Kb5 c6 h3 c7 Ne7 g8B Nc6 Kg3 f2 Nf3 Bg7 Bb2 Na7 Nc6 Nc5 Qc2 Nb7 Bg2 f1N+ Kf2 Be6 c8B Ng3 Qd7 Ne2 Qc3 Qe8 Rc1 h1N+ Kf1 h2 Rc2 Bd4 Bf7 Nf2 Bc1 h1N Bh5 Bg8 Bh3 Ne4 Kg2 Nec5 Nh4 Nhg3 Bd2 f4 Qd6 Nf5 Nd8 Be5 Qb2 Nc3 Qg6 Bd4 Qg3 N3a4 Qc3 Rh6 Bd7+ Rc6 Qb2 Bh8 Qf6 d4 Qfg7 Kb6 b5 Re6 Rc3 Ka5 b6 Re3 Rc2+ Ka6 Nc6 Kb5 Ne5+ Nc6 Ng4 f3+ Kh1 f2 Kg2 f1N Nf2 Nh6 Nh1 Nf5 Bc3 Nd2 Bb4 Nd8 b7 Nc4 b8N Na3 Bd2 Ndb7 Bf7 Kb6 Bh5 Na7 Nc6 Kb5 Nd8+ Kb6 Nc3 Ka5 Rb1 a1Q Rf1 Kb6 Nb1 Qa2 Bc8 Kb5 Rf3 Qae6 Rf1 Qa6 Be6 Ne7 Rf8 Nf5 Bd7+
K2Q3b/nQ3p1R/1b1n1N2/k6p/2B2Q2/B2n2qn/RB1B1b1b/1rrbQN2 b - - 0 1 illegal: No possible last move, all moves rejected
1nQ2N2/bB2qp1R/2b4n/p3r3/B3R2b/Rn2RBk1/b2Q1b1r/2n1BKN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 b6 g5 c5 d5 c6 g3 h5 g4 b7 f3 c7 d3 b5 d4 b6 g2 h6 d2+ Kf2 Kf4 h7 d3 e5 Be6 c8B Ba2 e6 Qe7 Nc3 Nh6 Nb5 Bg7 Rh4 Bf6 Rh3 Bh4+ Rg3 Re8 h8R Ra6 Qe1 Ra8 Ba3 d1B Bb4 d2 Be2 Ba4 Nd4 Bc6 Rh7 Ra6 Qc1 Ra8 Qb2 d1N+ Ke1 Nc3 Qd2+ Ke5 Bd1 Ne2 Ba4 Nc1 Bd1 Bc4 Ra3 Ba2 Re3+ Kf4 Kf2 Nd7 b8R Ra6 Ra8 Nb8 b7 Rb6 Be2 Rb5 Bd1 Re5 Ba4 Rh8 Ra6 Qd7 e7 Qd6 e8B Qe7 Ke1 f2+ Kd1 f1N Ke1 Kg5 Ne6+ Kf5 Nf8+ Kf4 Nf3 g1B Rb6 Bcd5 Re6 Be4 Bec6 Bf2+ Kd1 Bed5 Ng1 Bh1 Rh3 g3 Bf3 g2 Bc3 Ng3 Bb4 Nge2 Bc3 Nb3 Bb4 Na6 b8Q Nec1 Qc7 Nb8 Bcb7 Nc5 Qc8 N5b3 Rh2 Kg3 Re4 Be3 Ke1 Ba7 Re3 Rc5 R6e4 Re5 Nh3 g1B Kf1 Bf2 Ng1 Rg8 Qd6 Rg5 Be1 Rh5 Qb4 Bf6 Rhh4 Bg5 Rhf4 Rh2 Qd2 Bh4 Rf6 Na1 Rc6 Nab3 Rcc3 Nd7 Rf4 Na1 Ra3 Nab3 Bh5+ Bf3 Re2 Bc6 Bf3 Nb8 Re3 Re6 Rc4 Re5 Rce4
7N/Q2bnBR1/r2p1rr1/knQ4p/r1Rn1b2/b2qR1B1/1Q2N1R1/Q1b4K b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 h5 Kf2 e5 g4 a5 Kg2 a4 b4 e3 c4 d3 f5 e4 f6 a3 b6 e2 f7+ Ke7 b7 Kd6 g5 Kc7 g6 Kb6 b5 e1R g7 a2 Nd2 e3 Ndf3 d2 Rh3 e2 Ng5 Ra4 c5+ Ka5 c6 Ba3 f8Q Rh6 c7 Ra6 b6 Nc6 Qd6 Nge7 g8R Ra8 b8Q Ra6 Rb1 a1B b7 Be5 Qa7 Beb2 Rg3 h3+ Kh2 Be5 b8Q Beb2 Bg2 Rf1 Nf7 e1B Ne2 Rf6 Nh8 Bf2 Rd3 Be3 Bd5 Rg6 Qg1 d1N Rg7 Nc3 Bf7 Bd2 Qb3 Nb5 Rf3 Bg5 Bf4 Be5 Qh1 Beb2 Kg1 h2+ Kg2 Rf6 Re3 Rg6 Qhd1 h1R Bg3 Rf1 Q6d4 Rf4 Kh1 Rff6 Qdc2 Bf4 Rg1 Bc1 Qa1 Ncd4 Rg2 Qg8 Be6 d6 Qbb2 Bd7 c8R Bh6 Ba2 Bf4 Rc6 Qc8 Bf7 Qc7 Rcc3 Qc4 Qf5 Qb3 Rc4 Qd3 Qfc5
Kbb4B/b1QRn1n1/n1p3kr/1NQ3rN/2pb1Q2/2R4R/1Q3R2/q3rBn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 a5 e4 g5 d4 f5 b4 Kf7 h4 g3+ Kf3 a4 d5 g2 d6 a3 d7 a2 h5 Be7 h6 Na6 b6 Bb7 h7 Nb8 b5 Kg7 Na3 Bf8 Qd5 Qc8 d8R Kg6 e5 Ne7 e6 Ra5 Rh3 Na6 Rd7 Qa8 Bb2 Bc8 Ne2 g1B b7 Ba7 Rc1 a1B b8Q c6 b6 Rb5 Ng3 g4+ Kf2 f3 Ke3 f2 Kd4 f4 Qc7 f3 Rc3 Bh6 Qc5 Bf4 Nh5 g3 b7 g2 b8Q Bg3 Qf4 g1N Qbc7 Ra5 Nb5 Bh2 Bg2 f1N Ke5 f2 Kd6 Ne3 Bf1 Rg8 h8Q N3f5+ Ke5 Ng7 Kd6 Nd5 e7 Ra3 e8R Ne7 Be2 f1R Rf8 Re1 Bf1 Ra2 Qfe5 Ra5 Rf2 Rd8 Qf8 Re8 Qff4 Rh8 Bc1 Rh7 Be3 Bb2 Bd4 Rh6 Qe2 Bc1 Qb2 Be3 Be5 Bd4 Bf6 Ne6 Bh8 Ng7 Rcc2 Ra3 Rc1 Rg3 Rc3 Rg5 Q7b6 Nb8 Qfe5 Bf4 Qd8 Bb6 Qf8 Qa1 Qd8 Ba7 Kc7 Bfe3 Qh2 Bf6 Qhe5 Bd4 Qf4 Bfe5+ Rd6+ Be6 Kb7 Na6 Rd5 Bg4 Ka8 Beb8 Qdc7 Bc8 Rd7
Q1Qq1k2/1br1p2R/1Q4n1/K3NR2/1B2bn1b/R2Bn2p/N2Q2r1/Rrbn4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 b4 d5 c4 h3 f4 h2 b6 a4 g5 a3 c5 a2 b7 h4 b5 d3 Kc3 d4+ Kb4 e3 f5 d2 b6 d3 g6 e2 c6 e1B g7 Ra7 c7 Nd7 b8Q Ne5 f6 Ng6 Ba3 Bb7 c8Q h3 Qa8 Be4 b7 Bh4 b8Q Rc7 Qb6 Kf7 Qe1 d1N Qd2 Ne3 Nf3 Rh5 Nc3 Rg5 Ka4 Rg2 Bb4 Bb7 Rg1 h1B Ne5+ Ke8 Ka5 Be4 Qc1 d2 Bd3 d1N Qd2 Bb7 Rf1 Be4 Rf5 Bb7 Rc1 a1R+ Na2 Rb1 Rf3 Nh6 g8R Nf7 Rh8 Ng5 Rg3 Ne6 Rh7 Bh6 f7+ Kf8 Rf3 Nef4 Rg3 Rb3 Ra1 Rb1 Bb5 Ng4 Ra3 Nge3 Bd3 Bg7 Nf3 Bb2 Ne5 Bc1 Rh5 Kg7 f8R Be4 Rff5 Kg8 Rfg5 Kf8 Rf5+ Ke8 Rc3 Bb7 Nf7 Rf2 Rh6 Kf8 Ra3 Bhe4 Rh7 Rg2 Ne5+
b2r2nk/8/1B1BRb2/1Bbp4/1QN1n1p1/2nrQ1Rn/q1q3R1/bBRN3K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 Kg2 a5 h4 f5 e4 Kf7 c4 Kg7 b4 d5 e5 d3 h5 d2 b6 a4 e6 a3 b5 g3 e7 a2 e8R g4 b7 Na6 b8B Qa5 b6 Nc7 c5 Ne6 b7 Be7 c6 Ng5 c7 Bf6 Ne2 Nh3 Rh2 f3+ Kh1 f2 Na3 f4 Re6 f3 Qb3 d1N Nc4 Nc3 h6+ Kh7 Rb1 a1B Rg2 Qa2 Be3 Ra3 Rc1 Bd7 c8B Bc6 Bc7 Qc2 b8Q Ba8 Bd6 Qa2 Nf4 Qc2 Be2 f1N Q8b4 f2 Nd3 Nd2 Ndb2 Nde4 Nd1 f1Q+ Bg1 Qf5 Bb6 Qa2 Bd3 Qff2 Bb1 Qfd2 Bd7 Qdc2 Q3a4 Rb3 Bb5 Ra3 Qc5 Rb3 Qe3 Ra3 Re2 Rb3 Qb4 g2+ Kh2 g1B+ Kh1 Ra3 Rg2 Rb3 Qe2 Bc5 Qe3 Ne2 Rg3 Rd3 Rg2 N2c3 Rg3 Kg6 h7 Kg7 Rg2 Ne7 Rg3 Rd8 h8R Ng8 Rh5 Rc8 Rf5 Kh8 Rf2 Rd8 Rfg2
8/3BR3/2B2k2/Bpbn1p1N/q5Bn/qR2Qb1K/1nN3rN/rQqnq2N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 h5 g4 f5 Kg2 c5 e4 b5 a4 f3+ Kh3 b3 d6+ Kf7 a5 c4 a6 f2 a7 c3 d7 b2 e5 c2 e6+ Ke7 g5 Na6 d5 Nh6 g6 Nf7 g7 Ne5 d6+ Kf6 e7 Nc7 e8B Bb7 Ne2 Qe7 d8N Rg8 d7 Nf3 Nd2 b1N Ng3 Qa3 Nc6 Nc3 Be2 f1N Nb4 Na4 Rb1 Bc5 Rb3 Ne3 Ndf1 Nb2 Bd2 c1Q Nh2 Ncd5 Re1 Qa4 Qc2 Ned1 Nh1 Qca1 d8N Q1a3 Ne6 Bc6 Bd7 Bb7 Kg2 h3+ Kg3 Bc6 Qb1 Nh4 Nc2 Bb7 Ba5 Bc6 Nf3 h2 Nf4 Bb7 Kh3 Bc6 Ng3 h1Q+ Nh2 Qhe4 Bg4 Qeb4 Rf1 Qe1 Nh1 Qe5 Bf3 Rae8 a8B Ng2 Qa2 N1e3 Nf2 h4 Re1 Nc7 Nf1 Qee4 Kh2 h3 Kg3 h2 Kh3 h1Q+ Nh2 Nh4 Be2 Qg1 Nh1 Qe5 Bh5 Bf3 Bac6 Re6 Qa1 Rd6 Qa2 Rd1 Re2 Ra1 Qb1 Ncd5 Re1 Rf8 g8Q Qe6 Re2 Qc1 Qg1 Ned1 Qf2 Re8 Bg4 Qe5 Re4 Qc3 Re1 Re2 Qg1 Rf2 Re7 Rg2 Qe3 Qe1 Nh5+
1K2Q2Q/1n2n1n1/2b1pR2/2b1n2R/bN1Q1B1N/2qp2qN/Q1B3r1/2rbN2k b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Ke6 g4 Ke5 c4 Kf4 f3 Kg3 b6 d5 f4 h5 f5 a5 f6 e6 c5 a4 c6 h3 b7 a3 g5 h2 c7 e3+ Kd3 e2 f7 e1Q g6 a2 g7 h4 b5 h3 b6 Qg5 Qd2 Bc5 f8N Bd7 c8Q Ba4 Qe8 Ne7 g8Q Nd7 Qg7 Rc8 b8N Rg8 b7 Rc6 Be2 Kg2 Na6 Rc7 b8Q Qgg3+ Nf3 Rc8 Nb4 Rc6 Rf1 h1B Ng6 h2 Nc3 Rc8 Rb1 a1N Qa2 Nb3 Nd1 Na5 Bf4 Nb7 Nf2 Rc7 Bd1 Qc3+ Ke2 Rc6 Bc2 Ne5 Nh3 Rc7 Qbd8 Rc8 Qh8 d3+ Kd1 d2 Ke2 d4 Rbe1 Ba7 Qb6 d3+ Ke3 d1B Qd4 Bc5 Ke4 Nf5 Re3 Ng7 Ree1 Nc6 Re3 Ne7 Ke5 Rf8 Bb1+ Qb2 Nd5 Na5 Nb4 Bb6 Kd6 Rc1 Re5 Bc5+ Kc7 Nb7 Bc2 Qc3 Bd2 Rf7 Nfg5 Rf2 Kb8 Re2 Rf7 Rf2 Nhf4+ Kg1 Rf8 Bhc6 Rf6 h1N Nfh3+ Kh2 Be3 Rg2 Bf4 Nf2 Nf3+ Kh1 Ne1 Ng4 Rh5 Ne5 Nh4
N3br1N/b1Q5/p1Bnq3/1B3qpr/2Rb2k1/1q1n1bBN/2B2qQ1/N4R1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Ke6 b4 Kf5 c4 d5 h4 g5 h5 d3 b6 a6 b5 d4 b7 d2 c5 g3 c6 d3 c7 Kg4 h6 f5 b6 Bc5 h7 Qd7 Qc2 d1Q e4 d2 e5 Nh6 e6 Nf7 e7 Qe6 e8B Nd6 Nh3 Bd7 c8B Bd4 Bb5 Nc6 b8N Ne5 b7 Nd3 Rf1 f3+ Kh1 f2 Ra4 f4 Rc4 f3 Na3 Rf8 Bg6 Be8 h8N Ra7 Qb2 Qb3 Bcd7 d1B Nc2 Be2 Na1 g2+ Kh2 g1B+ Kh1 Ra8 Bdc6 Ra7 Bf4 Ra8 Rd1 f1Q Bg3 f2 Nd7 Qe1 b8Q f1Q Qa7 Bf3+ Qg2 Qef2 Nb6 Rd8 Qg7 Rd7 Qe5 Rh7 Na8 Rh5 Rb1 Q1e1 Qg7 Q1e5 Bge4 Q5f5 Rf1 Qe2 Qa7 Bge3 Qg7 Qf2 Qc7 Ba7 Ng6 Bed4 Nh8 Nb2 Bb1 Nd3 Bc2
3k4/2B1N1K1/1R3N2/2q1N1Q1/1Rn3Br/1q1p2pq/1pbbBNbB/n4rnQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 d5 a4 g5 c4 b5 h4 g3 f4 g2 c5 g4 f6 b3 f7+ Kd7 c6+ Kc7 a5 b2 f5 b4 a6 b3 f6 Rh5 a7 Bd6 f8Q Na6 f7 Nh6 Qg7 Qh8 f8B+ Kd8 Nd2 Nf5 Ra4 Bb7 Be2 Bb4 Bd6 Ne3 Ne4 Bd2 Nh3 g1N Nhf2 Nc4 Rb4 g3 Nf6 Rc8 a8B Qh6 Qg5 b1Q+ Qc2 Qa2 Qb1 b2 Rb6 Qh8 Bc5 Rh7 h5 Rf7 h6 e4+ Kc2 e3 Kd3 Rcc7 h7 Rce7 Rh5 Re4 Rh4 Qa4 Bg4 e2 Bd6 Qf8 h8N e1Q Ng6 Qf1+ Be2 Qg2 Ne5 Qh3 Bb8 Qc5 c7+ Ke7 c8N+ Kd8 Ne7 Qa2 Rh6 Rh4 Rb4 Bc6 Bb7 Qa4 Bc8 Qab5 Kc2 d3+ Kb3 d4 Bcg4 Bg2 Ba7 Bc3 Bf4 d2 Kc2 d1B+ Kd3 Bd2 Rg6 Bf1 Ke4 d3 Kf5 Bc2 Rh6 Rf8 Kg6 Bg2 Kg7 Qa4 Rg6 Qb3 Qd1 Nf3 Qh1 Ng1 Nh5 Rf5 Rgb6 Rf8 R4b5 Nb4 Nf6 Nd5 Rb4 Nde3 Nh5 Rf5 Nf6 Qa3 Nf3 Bb1 Rb7 Qc8 Nd1 Qb3 Nfd5 Nc2 Nf6 Na1 Bd6 Rf4 Ne5 Nf3 Bg1 Qc5 Bh2 Ng1 R7b6 Rf1 Nf2 Bc2 Bc7+
nQ6/r4n1q/3R4/1KbrBbRp/1p3Rr1/k2Q1N1R/B3BBpn/1Nq2q2 b - - 0 1 illegal: No proof kernel
2Q1R2k/3n3q/R4Nnp/3r1qbb/3nBq1B/B1p1r1r1/2p2RBK/2NR1Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 g4 f5 Kg2 Kf7 e4 Kg7 d4 a5 b4 c3 b6 a4 b5 c2 e5 h6 e6 a3 d5 h3+ Kh2 f3 d6 a2 g5 c4 d7 c3 g6 f4 b7 f2 b6 f3 e7 Ra5 e8B Rd5 Na3 Be7 Nc4 Bg5 Ba3 Qc7+ Ne5 Ne7 d8B Bg4 Bc6 Re8 Ne2 Nd7 b8Q Kh8 b7 Bh5 Bg2 f1Q Nc1 f2 Qc8 Qd3 b8R f1Q Be4 Qf5 Qf1 Rg8 Rb6 Qdf3 Rab1 a1N Ra6 Nb3 Bb7 Nd4 g7+ Kh7 Rg1 Ng6 Rg2 Re8 g8R Q3f4+ Kg1 Re7 Rf2 h2+ Kg2 h1R Re8 Rh4 Ng4 Rh3 Nf6+ Kg7 Ba8 Rg3+ Kh2 Qa7 Bg2 Ree3 Bb7 Rd6 Bbe4 Rd5 Nd3 Qac7 Rd1 Qb7 Nc1 Qbc7 Bf8+ Kh8 Ba3+ Ndf8 Bc5 Qh7 Ng8 Bf6 Ba3 Nd7 Bde7 Bg7 Bg5 Bf6 Bh4 Bg5 Nf6+
RR1q4/6QB/Brqp3b/1n1bB1r1/bR3NB1/r2NK1np/q1p1R3/Q2k4 b - - 0 1 illegal: No proof kernel
b2BR2B/1q3n1n/R1p1Rb1b/pq4n1/B1Q3QN/6r1/3K1kpN/r2BRq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 e4 Ke7 h4 Kd6 d4 f5 b4 g5 h5 c6 b6 f3 d5 Ke5 b5 g3 b7 g2 d6 c3 b6 f4 h6 c2 h7 f2+ Kd2 Kd4 d7 f3 e5 g4 e6 g3 e7 Qc7 d8B Nh6 e8B Bg7 Rh2 Nd7 b8R Bb7 Bh5 Nf7 Ra6 Rg8 h8R Bf6 Rh6 Nf8 Bb5 f1Q Ba4 f2 Rh1 Qb5 Bb2+ Ke4 Bd4 f1Q Nf3 g1N Nh4 g2 Bb2 Rg3 Qg4+ Kd5 Ba1 Nh3 Rg1 Nhg5 Qc4+ Kd6 Bd1 Nfh7 Qg4 Kd5 Rc8 Be7 Re6 Kc5 Bh8 c1B+ Kc2 Qd7 Nd2 Bf6 Ndf3 Bf4 Nh2 Kd4 Be7 Qc7 Re8 Qd7 Bd8 Qe7 Rd6+ Ke3 Re6+ Kf2 Rh1 Nf3 Rg1 Bh6 Qc4 N3g5 Kd2 Rb8 Rh1 Ba8 b7 Rc8 b8Q Qeb7 Qd6 Rc7 Qdb4 Re7 Rb6 a5 Ra6 Rd7+ Qd3 Rd5 Qg4 Rc5 Rg1 Rc1 Qdc4 Ra1 Qb3 Qfc4 Rge1 Qf1 Qbc4
1Q2NBr1/1p2RK2/qBnB2Bq/3n1kbR/2rb3n/1p1Npq1b/7Q/1Q1Q4 b - - 0 1 illegal: No possible last move, all moves rejected
1qrk4/Qp3BRN/1nprNB1n/K7/1R1Rbr1Q/2b4Q/p2q2Q1/1qRn4 b - - 0 1 illegal: No possible last move
1r1N3n/b2QB3/Rn1n1q2/3n1b2/Np2p1kB/p1Br4/1R1RbnBK/Q6R b - - 0 1 illegal: No proof kernel
3n1k2/8/1b4p1/q2pKbR1/n3BR1B/QRBrN3/n1r1pbR1/2BnnQ1N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 e5 b4 d5 f4 d3+ Ke3 g3 c4 g2 b6 d2 c5 g6 b7 a4 f5 a3 h5 a2 f6 Ra7 c6 Bg7 h6 Bf8 f7+ Ke7 c7 Bg7 f8Q+ Kd7 b5 Ra3+ Nc3 Nc6 b8R Nf6 Nh3 g1B+ Nf2 Rg8 Qd6+ Ke8 b6 Bf5 c8R Nd7 b7 Nc5 h7 Na4 h8B Kf7 Bh3 Qa5 Rh2 Nd8 Qf1 Rf8 Rb1 a1N Rc4 Nb3 Bg2 Re8 Qa6 Kf8 Nd1 Re6 Bf3 Rc6 Rg2 Rc5 Rd4 Rc2 Rb2 Bf6 Rg5 Be7 Qa7 Bc5 Ra2 Bb6 Bg2 Bh2 Nh1 Bg3 Qa8 Nc3 Rb2 Nc5 Rb3 N5a4 Rc8 Be1 b8B Na2 Bd6+ Kg8 Be7 Kf7 Bef6 Kf8 Rc7 Bg3 Rh7 Be1 Rh2 Bg3 Bf3 Bh4 Rhg2 Bf2+ Ke2 e3 Be4 Qa7 Kf3 e2 Ne3 d1N Rb5 Rd3 Rb3 Qc7 Rdb4 Nc5 Qa3 Na4 R5g4 Qc5 Bh4 Qa5 Rg5 Be6 Bf5 e4+ Kf4 e1N Bc3 Bd7 Ke5 Bc8 Nc4 e3 Be4 e2 Ne3 Bh3 Bf3 Bf5 Rf4+ Kf7 Be4 Ke8 Rb4 Kf8 Rb3+
N4k2/1N4bn/RR2RrQQ/4rn1K/2p2rR1/1pbBBN2/1b1q1pb1/n2N4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 a4 c5 e4 g5 d4 b5 h4 f3 Kg3 c4 d6 f4+ Kh2 b3 h5 f2 d5 b4 h6 g3+ Kg2 g4 h7 b2 a5 b3 a6 Nh6 a7 Bg7 d7+ Kf8 e5 Nf5 e6 Bb7 Be2 f1R Nc3 b1N Ra6 Na3 Be3 Nc2 Qb1 Na1 Nf3 Qa5 d8N Nd7 d6 Nf6 Nd1 Qd2 d7 Be4 Nf7 Re8 d8R Rg8 h8Q Nh7 a8N Bb2 Qc3 Rg6 Qcc1 Rf6 Rdd6 Re7 Rh4 Rf2+ Kh1 g2+ Kh2 g3+ Kh3 g1B Kg4 g2 Kh5 Bh2 Rdb6 g1B Nd8 Re8 Nd4 f3 Bd3 Be5 Nb7 Rf1 Rg4 Bc6 Ne2 Bec3 Nd4 Bh2 Qbc2 Bf4 Q2b1 Bh6 Qbc2 Bg7 Q2b1 f2 Nf3 Re1 Qbc2 Re7 Q2b1 Ref7 e7+ Kg8 e8R+ Rf8 Nh2 Bg2 Ree6 R8f7 Nf3 Kf8 Bd4 Re5 Qbc2 Qe2 Qh6 Qd2 Be3 Rd7 Qg6 Rd4 Qb1 Rf4 Qc1 Bb4 Nc3 Ba5 Qh1 Bb4 Nd1 B4c3 Qh4 Nd6+ Qhg5 Nf5 Q5h6
B1BRbbQk/Qr1rr2p/8/nN3r2/4p3/1bp1qN1R/n2BR3/K2n1R1B b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 e3 f4 Bh6 a4 Kf7 d4 Kg7 f5 e5 d6 b5 d7 c5 g5 h3 a5 e2 Kd2 e1R Kc2 c4 Kb2 b3 g6 b4 a6 h2 a7 Qe8 d8R Nc6 d5 Nf6 d6 Rf8 d7 Kh8 Qe2 Nd5 f6 Ne3 Qf2 Na5 Ra2 Nd1+ Ka1 Rb8 a8B Rb7 Nc3 b2+ Kb1 Ra7 f7 Ba6 Be3 Bb5 Rc8 Bg7 d8Q Bc6 Kc2 b1N Bg2 b3+ Kc1 b2+ Kc2 Rg8 f8R Qe6 Qd5 Be8 Rd8 Rf1 Rf3 Bf8 Rh3 Rgg7 Be4 Rge7 g7+ Kg8 Bg5 Rad7 Qa7 Rff7 Bf3 Qh6 Bc1 Qe3 Bg2 e4 Nf3 Rb7 Qg5 Rf5 Nb5 Nbc3 Rg1 h1R Qg3 Rh2 Rf1 Qb6 Bh6 b1B+ Kc1 Bd3 Bh1 Rd2 Rc2 Na2+ Kb1 c3 Ka1 Bc4 Qg2 Rd4 Re2 Rd3 Bd2 Qe3 Qg1 Bb3 Qg4 Kf7 g8B+ Kf6 Be6 Rdd5 Ng5 Kg7 Nf3+ Kh8 Bc8 Rdd7 Qg8+
bB2N3/1B3k1n/8/1qrR2nN/2qpN2r/qR1Q2b1/pqp1RR2/3NbQK1 b - - 0 1 illegal: No proof kernel
2NBn2N/2NqR3/2r1r2p/1b1qbk2/2R4K/pN2Rbn1/2pqR1BQ/2Q1b3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Ke6 d4 c5 e4 a5 b4 f5 d5+ Ke5 g5 c3 d6 c4 g6 h6 b6 c2 b5 h3 g7 f3 Kg3 f2 b7 h2 d7 c3 b6 a4 Bg2 f1Q Nh3 a3 Bg5 c1B Nd2 c2 Kh4 f4 Nb3 f3 Nf4 f2 Ne6 Bf4 Nc7 Qd3 Re1 f1B Re3 Nf6 g8N Ne8 Qc1 Bb4 Ne7 Na6 b8Q Bb7 Nc8 Nc5 Rb1 Bc6 b7 Ra6 Rb2 Qe7 d8N Qed7 Be7 Qd2 Re2 Be3 Nf7+ Kf4 e5 Kf5 e6 Bd4 Bd8 Ne4 e7 Be5 Re3 Ng3 Rb1 Rg8 Nh8 Bf3 Re2 Rc6 Re3 Nf6 e8R Rg6 Re7 h1Q+ Bh3+ Bg4 Ra1 Qe1 Qa8 Qf2 b8R Rb6 Qd1 Ne8 Qg2 Rbc6 Qh2 Qhd5 Bg2 Bf3 Rb7 Bd2 Rb4 Bb5 Rc4 Rge6 Qf1 Qe2 Re1 Qed3 R1e2 Bdc3 Qd1 Be1 Qa1 Qd2 Qc1
3r1N1N/2q5/2N1nNp1/b1B1n1k1/Bppb2r1/5R2/Qr1RK1b1/q1r1BB1Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Ke7 h4 Kf6 a4 c5 e4 b5 e5+ Kg6 e6 f5 d6 g3 d7 b3 e7 b4 h5+ Kg5 e8B g6 a5 c4 h6 b2 d5 g2 d6 Be7 a6 Nf6 h7 Bb7 a7 Nd5 Ne2 g1B Rh3 Nc6 Rf3 Nc7 Bd2 Ne6 Nd4 Qc7 d8N Ne5 N4c6 Bd4 Nc3 b1R d7 Rb2 Nd5 Bec5 Qb3 Bb6 Ke2 Ba5 Qa2 Rc8 Nf6 Ba8 Nb7 Rd8 Nc5 Rf8 h8N Bb7 a8Q Rf7 Re3 f3+ Ke1 f2+ Ke2 f4 Rf3 Rh7 Rc1 Rh4 Rc2 Rg4 Be1 Kh4 Rd2 Kg5 Bh3 f1R Bg2 Rb8 d8B Rg1 Be7 Rd8 Ncd7 Rh1 Bg3 Ra1 Bc5 Rc1 Ncb8 Be4 Nf8 Bb7 Bf1 Be4 Re3 Bg2 Ba4 f3+ Kf2 Rcc2 Nc6 Rc3 Ke1 f2+ Ke2 Rc1 Rf3 Bh3 Rb3 Rf4 Ne7 Ra1 Qh1 Bg2 Rf3 Rg4 Nc6 Bc3 Ke3 Rab1 Bd3 f1Q Bf2 Qc1 Bf1 Bd4+ Ke2 Ra1 Qa3 Qb1 Bg3 Qa2 Be1 Rc1 Qb3 Qa1 Qa2
2knr3/bbQ4N/4Rpb1/NqQbNr2/qp2B3/N7/Q3R1np/1KBn1Q2 b - - 0 1 illegal: No possible last move, all moves rejected
3bQr2/3p1R2/Qr3nKR/1pn5/1kBq1N1Q/3Br2b/1Bq1N1pQ/2Bn2n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 Ke7 Ke4 Kd6 c4 Kc5 h4 b5 f4 g5 a4 b3 a5 g3 h5 g2 f6 g4 Kf5 d3 f7 d2 h6 e4 a6 b2 a7 g3 h7 e3 Nh3 g1R Qe2 d1Q Nc3 b1N Kg6 Qb3 f5 Nf6 Nf4 Qb6 Qh2 Kb4 c5 e2 c6 e1N c7 Nf3 Bd3 Na6 Nce2 Rb8 a8B Nc5 Bd5 Qc2 B5c4 Be7 f8Q Bd8 Qe7 Bb7 c8Q Rf8 h8B Nc3 Qeh7 g2 Q7h4 Bd5 Qa6 Re1 Rf1 Nd1 Rf2 Nh7+ f6 Be6 f7 Ng1 Bhb2 Nf6 Rf1 Bh3 Ra2 Rh8 f8Q Qa7 Qe8 Rf8 Qc8 Qb6 Ra6 Qd6 Rc6 Rb6 Qa6 Qd4 Ne6 Ng4 Rf7 Nf6 Rd6 Rf1 N6f4 Rf3 Rd5 Re3 Rh5 Qdc3 Rhh7 Qd4 Rh6
3Q4/1Nqp4/pRR1n1Q1/r1Q2Q2/2R1B3/2n1bpBn/kb4rR/2qbn1NK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 h4 Kd5 b4 Kc4 e4+ d3 h5 f5 e5 g5 e6 g3 b6 g4 b5 Ba3 b7 Bb2 h6 Qc7 c3 Na6 b8Q Bb7+ Qf3 Kb3 b6 d2 e7 d1Q e8Q Ne7 h7 Nd5 c4+ Nc3 c5 Rg8 c6 Nc5 h8Q Ne6 Rh2 Qd2+ Qf2 f3+ Kh1 f4 Qc5 f2 Bd3 f1N Qbd8 Ne3 Ra4 Ng2 Qh3 Ne1 Rc4 Ka2 Na3 f3 Qeh5 Ba6 b7 Qc2 Be3 Qc1 b8R Bb5 Bh6 Ba4 Nb5 Bd1 Rb6 Rg5 Nd6 a6 Qe3 Ra5 Qg6 Rc8 Bf4 Rb8 Qdh4 Rg8 Nb7 Rg7 Be4 Rg8 Re2 Rg7 Qc5 g2+ Kh2 Rg8 Qd8 Rg7 Qhh7 Rg8 Bg3 Rg7 Nh3 g1B+ Kh1 Be3 Rh2 Rg8 Bf2 g3 Ng1 Qd6 c7 Rg7 c8R Qc7 Ne2 Rg8 Qgf5 Rg4 Qhg6 g2+ Kg1 Qd6 Rcc6 Qc7 Rh4 Rg3 Kh2 g1N Kh1 Rg5 Rh2 Nh3 Ng1 Rg2 Bg3
3QRb2/1p1K1bN1/pQQ1rNpr/1Rq1r1q1/2BBQ2k/1r6/1R6/1nq1Rn2 b - - 0 1 illegal: No proof kernel
RQbB4/pR6/3kn2Q/1Qb3Br/nq1p1qB1/N7/K1N2pqQ/B1qrb3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 g5 e4 d5 h4 f5 c4 d3 Kc3 g3 Kb2 d2 b6 g2 b5 f3 c5 g4 h5 f2 b7 f4 b6 g3 c6 f3 c7 Be6 c8Q Qd7 h6 Qc7 h7 Qf4 e5 Nh6 Ka2 Ng4 Qcc2 Na6 b8B Nh2 b7 Nc5 Na3 Bc8 e6 Qb4 Bc7 Na4 Bd8+ Kd6 Be2 f1Q e7 Bg7 e8Q Bc3 Qe1 d1Q Bcg5 Qc1 Qb5 Rb8 Qf2 Be1 Qe3 Qf2 Bd1 Qfd2 Ne2 g1B Rb1 g2 Nd4 Bgf2 Rb3 g1Q Rc3 Qg2 Rc7 Ra8 b8Q Bg1 Qee8 Qf4 Qh5 Be3 Qd2 f2 Bg4 Nf3 Ndc2 Bc5 Qh2 Nd4 Qe3 Ne6 Qeh3 Rf8 h8B Rf5 Ba1 d4 Qh6 Re5 Bc3 Re3 Bb2 Rd3 Ba1 Rd1 Rg1 Qf1 Rg3 Qg2 Rf3 Qe5 Rf8 Qef4 Q8b7 Rb8 Qa8 Rb6 Qb8 Ra6 Rh8 Ra5 Qa8 Qbd2 Qb6+ Ke5 Bde7 Bb4 Bh4 Ba6 Qd8 Rd5 Qb5 Bc5 Qa8 Bb7 Rb8 Bc8 Bd8 Kd6 Qab7 Qfg3 Ra8 Qgf4 Qb8 Rh5 Bhg5 Qb4 Rb7+
1k2Nr1N/p2BR1Kn/qn3r2/B3Q3/1bp4B/N1q1B1Qr/1p2bR2/1rb2N2 b - - 0 1 illegal: No proof kernel
2k3nR/r2b2K1/N2Q4/1bb1p1BN/2rBbb2/1RQpb3/QpBQ2n1/q3B3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 b5 Kd3 d5 a4 Kd7 h4 g5 f4 e6 c4 g3 f6 b3 c5 g2 f7 g4 a5 b2 c6+ Kc7 f5 g3 h5 b4 a6 b3 f6 Be7 f8Q Ra7 h6 Nd7 f7 Bh4 h7 Nh6 Nc3 Nf5 Ra3 Qf6 Qd2 Ne3 Nge2 g1B Ne4 g2 Nf4 Bg5 Nh5 Bf4 Nc5 Bf2 Rh2 g1B Qd6+ Kd8 f8B Ng2 Bh6 B2e3 Bg5 Rf8 h8B b1B+ Qc2 b2 Rb3 Rg8 Bh4 Rg4 Be1 Qe7 Bf6 e5 Bg5 Rh4 Be2 Bgf2 Bd1 Rg4 Bcd2 Qf6 Bc3 Bg1 Ke2 d3+ Kf3 d4 Ke4 d2 Qd3 Qe7 Bc2 d1B Kf5 Be2 Qd2 Bb5 Kg6 Bgf2 Nf6 Qe6 Kg7 Qc4 Rh1 Qa4 Rh3 Qa1 Nh5+ Ke8 c7 Nf6 Rh4 Bcd7 Rh2 Ng8 Rh4 Ra8 a7 Bg1 Na6 Bgf2 Bd1 Be4 Bc2 d3 Rh3 Bc5 Bd4 B2e3 Rh2 Rb8 a8Q Rh4 Bd8 Rb7 c8Q Rc7 Qad5 Ra7 Qcc7 Rg4+ Bg5 Rh4 Qca5 Rg4 Qac3 Rh4 Bh6 Kd8 Bg5+ Kc8 Qdc4 Rg4 Qa4 Rh4 Qa2 Bb7 Nf6 Bg3 Rh1 Re4 Rh8 Bgf4 Nh5 Ba8 Qc4 Bd5 Bc3 Bd5c6 Qb4 Rc4 Bd4 Be4 Qbc3
2Q5/Bq5n/pR1pR3/1k1nNB2/N6p/bbrp1NrR/nN1b4/1K1RQr2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 g4 h5 f4 d3 c4 h3 b4 d6 f5 Kd7 c5 h2 c6+ Kc7 g5 Kb6 f6 a6 f7 h4 g6 Rh5 g7 Ra7 c7 Ra8 Nc3 Nd7 Bh3 Nh6 g8Q Nf5 Nf3 Ne7 Bf5 Bg7 f8R Rg5 Rf6 Nd5 Qe1 Rg3 Nd1 Nf8 Nb2 Qd7 Re6 e3+ Kd1 Bb7 c8R e4 Rc7 Nh7 Qc8 Bc6 Bd2 e2+ Kc1 e3 Kb1 Bd4 Bc3 Bc5 Bd4 Bb7 Rc6+ Ka7 Qd2 e1N Qc1 Nc2 Qe1 e2 Bg1 Rb8 b6+ Ka8 b5 Ba3 Rc5 Bc6 b7+ Ka7 Be3 Ra8 b8N Qb7 Nd7 Ncb4 Nb6 Na2 N6a4 Be8 Bf2 Bf7 Rc6+ Qb6 Qc1 e1B Bd4 Bd2 Qe1 Rb8 Be3 Ka8 Bc5 Qb7 Ba7 Bg8 b6 Bf7 Rf1 h1R Rf2 Rhg1 Rh2 Rf1 Rh3 Qd7 Qh8 Kb7 Qc3 Rc8 Qc4 Rc7 Qcc1 Kc8 b7+ Kd8 b8N Kc8 Rc4 Kb7 Nc6 Bg8 Nce5 Rc5 Ng4 Kc6 Nge5+ Kb5 Qc3 Rc8 Rc6 Qb7 Qc4+ Ka5 Qg4 Bf7 Qg8 Rc7 Qc8 Kb5 Rc1 Rc3 Rc2 Rb3 Rc6 Rc3 Rh6 Nb6 Rf6 Nc1 Rg6 Nb3 Ka2 Bc4 Rh6 Nd5 Rd1 Nc1+ Kb1 Bb3 Re6 Na2 Rb6+
1N2b1Qb/q1k2B1p/p3qB2/2rN3n/1KR4R/1Bn2b2/Rr1pp1q1/B1R4Q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 f4 Kd7 g4 e5 c4 h3 b4 a6 c5 d3 Kc3 e3 g5 e4 b6 e2 b7 h2 f5 e3 c6+ Kd6 f6 d2 c7 e1Q b5 d4+ Kb4 d3 b6 Bd7 c8R Qe8 g6 Qf2 f7 Qf6 g7 Qfd8 Nc3 Qe5 Nf3 Be8 Rc4 Nd7 b8Q+ Qc7 b7 Ngf6 g8B Ne4 Ra2 Qe6 Bb2 Bg7 f8R Ndf6 Nd4 Nh5 Nd5 Nc3 Nc6 Bd4 Qa1 d1B Rf4 d2 Bf7 Bf3 Rh4 e2 Bg2 Kd7 Rc1 h1Q Qb1 Rf8 Ba1 Bh8 Qc8+ Kd6 b8B Qhh3 Ba7 Rb8+ Bb6 Rb7 Nb8 Rg8 Bh1 Qg2 Qe4 Qce7 Qb1 Rc7 Bd4 Rc5 Bg7 Qa7 Bf6 Qgg4 Bg2 Rg7 Bh3 Qg2 Bf5 Rg5 Bc2 Rg3 Bb3 Rh3 Qe4 Rh1 Rcc2 Rb1 Rc1 Rb2 Qd8+ Bd7 Qg8 Be8 Nc6 Kd7 Nb8+ Kc8 Qe3 Kb7 Qg1 Kc8 Qh1 Kb7 Ne7 Kc7 Nd5+
2R1b1Qb/NN2pq1r/1rQn1Q1p/KR6/3pq3/4QN1p/1N1BBk2/3q1nn1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 a5 c4 d5 b4 h6 g5 Kf5 c5 d3 Kc3 a4 c6 e3 g6 Ke4 g7 a3 c7 d2 b6 h3 b5 e2 Kb4 Ke3 f5 e1Q b7 d4 b6 a2 f6 Ra5 f7 Qh4 Qc2 Qf6 Nf3 Ra6 Be2 Qg6 Na3 Nd7 b8N Qe8 b7 Rh7 Nc6 Ne5 b8Q Nf6 g8Q Qe4 Na5 Bd7 c8N Kf2 Rb1 d1N N3c4 a1Q Nb2 Ne3 Bd2 Nf1 Na7 Bg7 f8Q Qf7 Qc6 Ne8 Nb7 Bh8 Qfg7 Nd6 Qf6 Be8 Qa8 Ne3 Rhc1 Nf1 Qc3 Rc6 Qa3 Rb6+ Ka5 Rg7 Rc5 Rh7 Rbc1 Qab1 Rb5 Qa1 Rc8 Qd1 Ng5+ Nf3 Qd3 Kg2 Qe3 Ng1 Nf3+ Ng3 Qc3 Kf2 Qc6 Nf1 Qb8 Nf5 Qf4 Nd6 Qe3+
n1qkb3/2Nbr1B1/3BQQ1r/p1Kn4/Bp1RQB2/2N2p2/pb3r2/1R3Q1b b - - 0 1 illegal: No proof kernel
2q1Q1BQ/2n4Q/Qp1p1B1r/r1R2n1R/3b1kb1/2pB2Bb/4b1p1/NNn1K3 b - - 0 1 illegal: No proof kernel
2N1qBb1/1Q1R4/bN2ppk1/K3bn1p/n1R1q1p1/1b5Q/B1N2r2/Br4BN b - - 0 1 illegal: No proof kernel
5Q1q/Rq6/1N1p2nr/5Q2/BRp2bkp/1Nq2p1N/KBq3nR/3bNrR1 b - - 0 1 illegal: No proof kernel
2Q1N3/1k2r2p/1p6/B1pqQ2q/Q1r2pNR/bn4r1/R1r1B1RQ/nb2K2R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 e4 c5 g4 Kc7 a4 f5 d6+ Kc6 g5 b6 d5+ Kb7 e5 b3 e6 h3 g6 b2 a5 h2 g7 f3 d7 f4 d6 Qg5 d8Q Qd5 e7 Bf5 e8Q Nh6 g8R Bg7 d7 Ng4 Qe5 Ne3 Nh3 Ra7 Qa4 Nc6 Bd2 Nd4 Qh4 Nb3 Nc3 Bb1 d8Q Bf6 Rg5 Rg8 Rg2 Rg3 Nb5 Bg7 Nc7 f2+ Ke2 Bf6 Ne8 Nc2 Kd1 Bh8 Be2 Bf6 Ra2 Nca1 Ra3 Qc4 Be1 f1R Nf2 Bh8 Ng4 Rf2 Bd2 Qd5 Ke1 Bg7 Rf1 h1Q Qh2 Rff3 Bb4 Rc3 Rfg1 Rc4 Qa8+ Ka6 Qc8+ Rb7 Bc3 Ka7 a6 Re7 Ba5 Bf6 Qh6 Qh5 Rh1 Bg7 Ra2 Bh8 Rh4 Bf6 Qce6 Ka8 a7 Kb7 a8R Rc2 Qe3 Bd4 Q6e5 Bc3+ Qd2 Bb4 Qf8 Ba3 Rd8 Rc4 Rd6 Bc2 Rh6 b1R+ Qd1 Rb2 Qd2 Bb1 Rh1 Qg5 R6h4 Qh5 Qff5 Rbc2 Qc8+ Ka7 Qde3 Rb2 Qg1 Rbc2 Qce6 Ka6 Qh2 Kb7 Qc8+
rb1N4/1QQ4K/ppnr1BB1/R1pb4/p1krpNR1/1q4Q1/2nR2Q1/2R3b1 b - - 0 1 illegal: No proof kernel
2r2Nq1/Qbn1Q1B1/p2b1pNp/1rBp1B2/2p2Q2/3nRR2/pQqk4/B4K2 b - - 0 1 illegal: No proof kernel
k6R/r1r4Q/7N/1QB1nr1N/2B4K/pBQ2bN1/4qB1n/1Bqr2nn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Ra3 c5 Ra4 a5 Rc4 a4 b4 Bd6 Rd4 Bc7 Rc4 Ba5 bxa5 Ba6 Rd4 Bc8 Rb4 cxb4 Kf2 Kd7 g4 Kc7 d4 Kb7 e4 h5 e5 f5 a6+ Ka7 e6 h3 g5 h2 g6 a3 e7 h4 e8B f3 g7 b3 d6 h3 Kg3 f2 d5 b2 d7 Qe7 d8N Qf7 d6 Qf8 d7 Nc6 b6+ Kb8 b7 Qb4 Qd2 Nf6 g8Q Nh7 Nc3 b1R Nce2 f4+ Kh4 f3+ Nf4 Qc4 Bf7 Ne5 Qc3 Qe2 Nh5 Ng5 Be3 Rh7 Bb3 Rd1 Nf7 Ra7 d8B Bg4 Nh6 Rg7 Qh7 Rc7 Nf6 Bh5 Be7 Bg4 B7c5 Bh5 Bg2 f1N Bed4 f2 Be4 Bf3 Bb1 Ng3 Bc4 f1R Nh5 Rf2 Be3 Nf1 Bed4 Bg2 Be3 Rf5 Bf2 Bf3 Bb3 Qc2 Ne2 Qc1 Rg1 h1Q Neg3 Qg2 Rh1 h2 Bc4 Nh3 Bb3 Ng1 Bc4 Re7 Bb3 Kc7 b8Q+ Kc6 Qb5+ Kc7 Qbc4 Kb8 Qb5+ Ka8 Bc4 Rac7 a7 Rg7 Bb6 Rgd7 Bfc5 Qe2 Bb3 Kb7 a8B+ Kb8 Bb7 Re7 Bc8 Ka8 Bce6 Ra7 Bf2 Rec7 Bbc5 Nh3 Rg1 h1N Bec4 Nh2 Re1 Qf1 Re4 Qe2 Rg4 Ng1 Rg8+ Rc8 Bf8 Rc5 Rh8 Rcc7 B8c5+
1Nr3b1/B1qb4/r2nbQ2/5NK1/Q1p4B/4NpQb/2nR1q1B/1k2Q1Q1 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 a4 b5 axb5 d5 cxd5 Na6 b6 Qg5 b5 Nb8 Ra4 Qd8 g3 g5 Bg2 g4 Rb4 axb4 Be4 Nc6 Bf3 Nb8 h4 gxf3 g4 Nc6 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 Ke7 d4 Kd6 e4 h5 e5+ Kd7 e6+ Kd6 g7 c5 g6 f5 b7 b3 b6 b2 e7 c4 e8Q h4 Qea4 h3 Be3 h2 Nc3 b1B Qe1 Ne7 g8Q Be6 g7 Nbc6 b8B+ Qc7 b7 Nc8 Nge2 Nb4 Ng3 Ra6 Nd1 Nc2 Ba7 Bd7 b8N Be6 Rg1 h1B Rg2 Bd7 Rh2 Bg2 Bd2 Bh3 Ba5 Qb7 Bd8 Qc7 Bh4 Bg4 Qd8 Rf8 g8Q Bh3 Qf6+ Be6 Kg1 f2+ Kh1 f1B Rd2 f3 Kh2 f4 Qgg7 f2 Qgg6 Qb7 Nf5+ Kc7 Qg2 f3 Kg3 Nd6 Kf4 Rc8 Qg1 Bg4 Bg3 Bfh3 Bh2 f1Q Kg5 Qf2 Qfe5 Qb6 Qeg3 Kb7 Qe8 Qc7 Qa4 Nb5 d6 Bd7 Nh4 Bge6 d5 Bg8 Nf5 Bde6 d7 Nd6 d8Q Bd7 Bd4 Bde6 Bh8 Kb6 Qf6 Kc5 Bg7 Nb7 d6 Bd7 Qc6+ Kb4 Bf8 Bde6 d7+ Kb3 d8B Ka2 Bc5 Nd6 Ba7 Qg7+ Kf4 Qc7 Qe7 Bd7 Nh6 Ka1 Qa4+ Na3 Q7e6 Bc2 Bh4 Kb1 Kg5 Bcf5 Qf6 Bfe6 Nf5 Nc2 Nde3+
1b1K1Q1b/1pR2BN1/Nb3r2/2NpB3/2Q3Qp/3BkQ2/pQ2n1p1/2nb4 b - - 0 1 legal: proof: f4 a5 b4 f5 e4 fxe4 g4 c6 d4 c5 dxc5 axb4 a4 Kf7 Ra2 Ke8 Ra3 bxa3 h4 Qc7 f5 Qc6 g5 Qf6 gxf6 Ra6 Bb5 Ra5 Bf1 Ra8 f7+ Kd8 Qd6 g5 Qe5 g4 Qa1 Ra6 Qd4 Rg6 Qd1 Rg5 hxg5 Bg7 Ba6 Bh6 Bf1 Bf8 Kd2 Kc7 Ke3 Kc6 Kd4 h5 Ke5 d5 c4 e3 f6 e2 a5 e1B a6 g3 g6 h4 g7 e6 a7 g2 a8N a2 Qb3 Ne7 g8B Ba5 Ne2 Na6 Qb2 Bb4 Nd4+ Kd7 c6+ Kd8 c7+ Kd7 c5 Nf5 Nd2 Be7 f8Q Bc3 f7 Bd6+ Kf6 e5 Ne6 Kc6 Bd3 Nd4 Ng7 e4 Nb3 Bg4 Bf4 e3 Be5 e2 Rc1 e1B c8Q+ Bc7 Ke7 Rh6 Qf5 Bb8 Kd8 Bf2 Nc7 Nb4 Na6 Bd1 Qg4 Ne2 Rc2 Bcd4 Rc4 Kb5 c6 Rf6 c7 Bc3 c8Q Bb6+ Qc7 Bcd4 Bdh7 Nd3 Nbc5+ Ka5 Bg6 Ndc1 Bd3 Bc3 Qe7 Bd4 f8Q Bc3 Bf7 Bd4 Nb3+ Kb5 Qee6 Bc3 Qf3 Bcd4 Qeg4 Bc3 Be4 Bcd4 Rc6 Bc3 Nbc5+ Kc4 Bf4 Kd4 Bd3 B6a7 Qcc8 Bb6+ Rc7 Nb3 Qf1 Nbc1 Bd6+ Ke3 Qc4 Be5 Q8g4 Bf4 Be5 Bh6 Ne8 Bg7 Qff5 Bh8 Ng7 Rc6 Qf1 Rf6 Qff3+
NQn1Rq1b/b2nNbk1/n1BQ2r1/2Q4K/3q4/q1rq4/5QQ1/B2rN2B b - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 d4 a5 h4 f5 e4 Kf7 Ke2 g5 Kf3 c5 d6 a4 d5 a3 h5 f4 e5 a2 d7 a1N Kg4 c4 h6 f3 d6 c3 h7 c2 e6+ Kf6 e7 f2 e8B Qb6 Qe1 Nb3 Nd2 Ra2 Kh5 g4 d8N Bg7 d7 Qc7 b6 Qc3 b7 Ra1 b5 Nc5 b6 Qd3 Nc6 Nca6 d8Q+ Ne7 Qd6+ Be6 Nc4 Nc8 Nf3 g1B Ne7 g2 Qc5 g3 Bc6 Nd7 b8Q Rg8 h8Q Ra3 b7 Rc3 Bb2 c1Q Qh7 Bh8 Qbd6 Rg6 Ba1 Qa3 Be2 f1Q b8Q Be3 Qg8 g1Q Qf2 g2 Nb6 Bd4 Na8 Be3 Qd8 Kg7 Ne1 Bf7 Bef3 Bd4 Qdb6 Be3 Qa2 Qgf2 Rh2 g1R Bh1 Qd4 Rh4 Qfd3 Re4 Qff6 Qg2 Bf2 Nf3 Rd1 Ne1 Bg1 Nd5 Be3 Re8 Qe7 Qbb2 Qf8 Ne7 Qda4 Qcd5 Ba7 Qbf2 Qad4 Q5c5
2BK1R2/kN3b1Q/2R2BQ1/1n2r1bq/R1b4q/QQb5/1Bn3bn/Qr5n b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Na3 exf4 Nc2 Qd6 axb5 Qd7 b6 Qd6 b5 Qd8 Nb4 axb4 Kf2 Kd7 Kf3 f5 e4 c5 d4 h5 g4 h3 b7 Kc7 g5 Kb6 d6 c4 d7 c3 e5 h4 d5 c2 e6 h2 d6 h3 e7 b3 e8Q b2 g6 b1N g7 Nc3 Qd3 Ra5 Ne2 Nh6 g8Q Qh4 d8Q+ Ka7 d7 Bg7 Qg6 Nc6 b8R Nb4 Nd4 Ng4 Bb2 c1B Q8h7 Nc2 Ra4 Bd2 Rg1 h1N Nb3 h2 Bh3 Re8 Rc1 Re5 Qf1 Bf6 Qdh8 Bg5 d8B+ Bd7 Be7 Be8 Qd3 Bf7 Rf8 Ra6 Na5 Rb6 Qdd6 Rb7 Qa3 Be1 Bf6 Qh5 Kg2 f3+ Kf1 f2 Kg2 f1B+ Kf3 f4 b6+ Ka6 Q8g7 B1c4 Qgh8 Rb8 b7 Nb5 Q8g7 Bc3 Qgh8 Rc5 Ke4 f3 Q8g7 f2 Qgh8 Bcd5+ Kf5 f1B Q8g7 Bfg2 Qgh8 Re8 b8Q Re1 Qg3 Ka7 Qd3 Nhf2 Qc4 h1Q Qcb3 Nh2 Q8g7 Rf1 Bg4 Ncd4+ Ke5 Rd1 Bc8 Qh4 Rc2 Rb1 Qgh8 Qd1 Rc1 Nh1 Rc2 Nc7 Kd6 Qdh5 Kd7 Ncb5 Kd8 Be6 Q8g7 Re5 Rc1 Bb4 Rc6 Bc3 Qe4 Bd5 Qgg6 Bc4 Qe1 Ra1 Qeb1 Nc2 Q1a2 Rc1 Qa1 Rb1 Nb7+
K5Q1/4NBq1/b2BQn1B/3RR2r/b3qb1q/1q1R3B/3Q1q1B/r1k1qr2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ke1 h5 Nc3 f4 Nd5 Nc6 Ne3 Nce7 Ng2 Rh7 Ne3 Nf5 gxf5 Rh8 Ng4 hxg4 Kf2 Ke7 h4 Kd6 b4 Ke5 e4 d5 c4 a5 f6 g5 f7 a4 h5 d3 h6 Kd4 e5 Kc3 b6 a3 b7 a2 b8Q d4 e6 d2 h7 d3 c5 Bg7 f8B Bf6 e7 Ba6 e8B Be5 b5 Bc7 b6 Nf6 c6 Bd6 Rb1 a1Q b7 Qa4 c7 Qe4 c8Q+ Bc7 Qe2 d1Q Bf7 d2 Rb5 Qb3 Qe6 Kc2 Nh3 Be5 Qe3 d1B Rd5 Bc7 Bd6 g3+ Ke1 g2 Kf2 g4 Qd2+ Kb1 Rd3 Qe7 Qg8 Ra7 b8B Qd8 Kg1 f2+ Kh2 f3 Kg3 Bc2 Nf4 g1Q+ Bg2 f1R Nd5 f2 Ne7 Bd1 Rh5 Qh1 Rf5 Qe1 Kf4 g3 Bh3 g2 Re5 g1Q Red5 Qg7 Kf5 Ra8 Bh2 Bf4 Bd6 Be3 Ke5 Bf4+ Kd4 Qhe4+ Kc5 Nh5 Nf5 Qh4 Kc6 Nf6 Ne7 Qb5+ Kc7 Ba4 Re5 Qb3 Red5 Rg1 Re5 f1Q Red5 Qff2 Re5 Bc4 Red5 Bcb5 Kb7 Ra5 Kb8 Ba6+ Ka8 Rf1 Qc3 Be5 Bh6 Bf4 Qb4 Be8 Qc3 Ra1 Qd2 Ba4 Qgc8 Rd8 h8R Rd7 Qc4 Rb7 Qcc8 Rb5 Qg8 Rc5 Bg5 Ra5 Rh5 Rc5 Bh6 Ra5 Qe2 Kc1 Re5 Nh5 Rf5 Qec4 R5d4 Nf6 Rh5 Rg5 Rd5 Qe4 Qa2 Rg3 Rf5 Rg5 Re5 Rh5 Qd2+
K1R1b3/brQnRQqq/B2Q4/3R1Q1r/3B3N/n2bn2p/1k2Q3/3n1B1n b - - 0 1 illegal: No possible last move
7B/nQ6/2Qk1q1n/N1qN1Qb1/3b1N2/Bpn4B/rN1r1RKN/q1qb4 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 h5 e4 g5 a4 Bh6 g4 Bf8 Ra3 f6 Rg3 f5 exf5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kf2 Kd7 h4 c5 d4 e5 f6 b5 f7 g3+ Kg2 b3 a5 b2 h5 e4 a6 c4 h6 e3 d6 c3 g6 b4 d5 c2 h7 b3 g7 e2 a7 e1B Nf3 Qg5 Na3 b1N Rh2 Qe7 Nc4 Nc6 Ba3 c1Q Qc2 Bc3 Nb2 Nh6 g8N Qg5 Ne7 Qf6 Qe4 Rg8 h8B Bd4 Qh7 Bg7 f8Q Nc3 Qf7 Rd8 Qf5+ Qe6 Q7g6 Bgf6 Qh7 Bg5 Qhf7 Rb8 a8Q Na7 Qg7 Ba6 Qgf6 Rbc8 Qb7+ Rc7 Q6g6 Be2 Qgf6 Ra8 Q6g6 Bd1 Qgf6 Kd8 d7 Qf7 Qfc6 Qf6 Kh3 Rcc8 Rf2 g2 Nh2 g1Q Bg2 f3 Kg3 Qf1 Bh3 Qf8 Ng8 Qc5 Nf6 Ke7 d8N+ Rc7 Ne6 Rd7 Nf4 Qe1 Ne8 Qe6 Nc7 Qf6 d6+ Kf7 Rf1 f2 Kg2 Rdd8 d7 Ke7 Qce4+ Kd6 Ncd5 Re8 Qc2 Re2 d8N Rd2 Nc6 Qa1 Na5 Qc1 Re1 Qa1 Re2 f1Q+ Kg3 Re8 Rf2 Ree2 Qce4 Qc1 Na4 Ra2 Nb2 Rd2 Qf3 Qd3 Kg2 Qdb1 Q3e4 Qa1 Qe8 Qd8 Qeb5 Qf6 Q5c6+
Q1N2N2/N1b1B2K/Bn1bN1R1/8/1Q3q1p/nb4b1/b1kq1qN1/2B1r1nQ b - - 0 1 legal: proof: e4 g5 f4 b5 a4 a5 axb5 f6 d4 c6 h4 Bh6 g4 Bf8 b4 Ra7 d5 cxd5 f5 Rc7 Ra3 Rb7 Rf3 d4 Rf4 gxf4 g5 Rb6 e5 fxe5 h5 Rg6 hxg6 e4 Ke2 h5 c4 e5 f6 d5 b6 Kd7 g7 Ke6 b7 Kf5 g6 a4 c5 a3 c6 d3+ Kf2 d2 b5 f3 Kg3 d4 Kh4 a2 b6 a1B c7 e3 Rh2 Ke4 Kg5 d3 Bb2 e2 Rh1 e1N Bc3 h4 Bb2 f2 Qc2 d1B Nh3 Nd7 b8Q Ne7 g8N Nf5 b7 Bd6 g7 Ng3 Kg6 Ne2 f7 Qf8 Rh2 Nb6 Bc1 Be6 c8N Ba2 Rg2 Ng1 Nge7 Bd4 Qb2 d2 g8Q Nc2 Nd5 Na3 Ba6 f1Q Qa8 Bdb3 b8B d1Q Nhf4 Qf2 Ne6 Qdd2 Ndf4+ Ke3 Rg5 e4 Nc3 B4e5 Nb5 Rh7 Ng2+ Kd3 Qa1 e3 Nba7+ Kc2 Qd4 e2 Qb4 e1B Qb7 Qe7 f8N Qc7 Qf3 Re7 Qh3 Bb1 Qh1 B1a2 Qh8 Qc4 Rg3 Re8 Kh7 Qcf4 Rg6 Bc7 Qg7 Bcd6 Qb7 Bc7 Qa8 Bed6 Nd8 Qf2e3 Nde6 Bg3 Nc6 Qef2 Ba7 Nbc4 Bc5 Nb6 N6a7 Re7+ Ng7 Re1 Nge6 Be5 Be7 Bed6 Rh6 Kb1 Rf6 Kc2 Rg6
B2knNQN/Q5b1/K7/2r1n2r/3Np3/N2N1r1r/B1qqq2Q/Bq1R2q1 b - - 0 1 legal: proof: f4 c5 e4 f5 d4 cxd4 g4 fxe4 a4 h5 b4 b5 axb5 Nc6 f5 Bb7 f6 Nb8 Ra3 Bd5 Rg3 Be6 Rg2 Bf5 gxf5 Nc6 Rg3 Nb8 Rg4 hxg4 Ke2 g5 h4 d5 c4 a5 b6 e5 h5 a4 c5 a3 b7 e3 Kd3 e2 b5 e1Q h6 a2 c6 a1R h7 g3 b6 g4 c7 g2 c8B g3 Qb3 R1a3 Nh3 g1Q Be6 g2 Bb2 Bg7 Nf2 Nd7 b8Q R8a5 b7 Rc5 f7+ Ke7 f8N Ngf6 Qa8 Ne8 b8Q Qc8 f6+ Kd8 f7 Qc3+ Ke2 d3+ Ke3 Qh2 Ba1 g1Q Bg2 d4+ Ke4 d2 Qaa7 d1Q Nd3 Raa5 Na3 Qcd2 Bd5 Qb1 Ne6+ Ke7 f8N Qc6 Bf3 Qhe2+ Kf5 Qc8 Bc4 Qc7 Ba8 e4+ Bcd5 Qc6 Qh2 Qc7 Qbb8 Ne5 Ba2 Rab5 Ne1 d3 Nd4 Ra5 Qb3 Kd8 Ke6 Qdc1 Qc4 d2 Nd3 d1R Qb3 Qcd2 Qc4 Rg8 h8N Rf1 Qb3 Rf3 Qc4 Qgf2 Rd1 Qg1 Qb3 Bf6 Qc4 Rgg3 Qb3 Bg7 Qc4 Nf6 Qb3 Qc8+ Kd6 Rh3 Qe6 Rc1 Qg8 Qcc2 Nc5 Ne8+ Kd5 Nc4 Kc6 Rb5 Nd3 Rbh5 Nb4 Ne5+ Kb7 Qcd3 Kb6 Rc5 Kb7 Q3c2 Kb6 Nc4+ Ka6 Ne5+ Nd3
1n1Qr3/3B4/3rQbkr/4rN1B/1B1R1QbR/4p1R1/2nb2n1/bKbBB3 b - - 0 1 illegal: No possible last move
q2nQBQ1/kR2KR2/1rbQ4/N1p2qnb/rN2pQ2/7b/7N/Qqn3R1 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 dxc4 f5 g6 h4 Nf6 g4 Nd5 g5 Nd7 Bh3 Nb8 f6 Ne3 Bf5 gxf5 Qb3 Bh6 Qd1 Ng4 g6 Bg5 hxg5 Nh6 Qg4 Ng8 Qf3 Na6 Qd1 Nb8 Ke2 Kd7 Ke3 h5 Kd4 e5+ Kd5 a5 d4 c5 b4 e3 b6 f4 g7 e2 g6 e1Q b7 c3 b5 f3 f7 c2 f8Q h4 b6 h3 Qf4 f2 Ra3 f1B Nc3 h2 Nf3 a4 Na2 Qf2 Rg1 h1B Nb4 Nh6 g8Q Nf7 g7 Nc6 b8Q Ng5 b7 Be2 Qgf8 Ra7 g8Q Rh6 Be3 Qe8 Qa1 c1N Rc3 Kd8 Qbd6+ Bd7 b8N Kc8 Rb3 e4 Nh2 Nd8 N8c6 a3 Na5 a2 Qf8f7 Qf8 Qe8 Bh5 Rb2 Qf3 Rf2 Bc6+ Ke5 Bg2 d5 Bh3 Bd2 Qf7 Be3 Qb7 Bd4 Rh7 Kf6 Qa8 Bb2 Ra6 Bc3 Rh6+ Ke7 Qg4 Bg7 Qf5 Bf8 Rg6 Qdf6 Rh6 d6 Kb8 d7+ Ka7 Q6d6 Rf6 Nc4 Ra4 Na5 Nde6 d8R Rh6 Qb2 a1Q Rb8 Qb1 Qa1 Nd8 Qe3 Qg6 Rf7 Qf5 Qeg3 Bd7 Qdf4 Rb6 Qd6 Bb5 Qgf4 Bc6 Rb7+
2r2b2/RKRQ2Q1/1B2nbqn/R3b2N/4kp2/1R2pr2/2b1Q2n/r2RN1N1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 f4 e6 f5 exf5 e4 Qd6 e5 Qd7 Bd3 Qd8 Be4 fxe4 Ke2 Kd7 Ke3 a5 Kd4 h5 g4 f5 b4 h3 d6 Ke6 Kc5 h4 d4 a4 g5 h2 b6 h3 g6 c6 b5 a3 d5+ Kd7 b7 f4 b6 a2 g7 Qe8 Be3 Ra3 Nd2 Nh6 g8Q Qg6 Qe2 Rd3 Rd1 a1B Ndf3 Ra3 Ne1 Na6+ Kc4 c5 Kb5 c4 b8R c3 b7 c2 Kb6 c1B Ra8 Bab2 b8R Nc7 Ra5 Ne6 Bc5 Rf3 Qg7+ Be7 Ka7 e3 Rb3 Ba6 Bd4 Bd3 Bb6 Rc8 Kb7 Bd2 Rc1 Bb4 Rcc3 Bc2 Rc7+ Kd8 d7 Bf6 Ra7 Bf8 Ra5 Ng5 e6 Bbe5 Qg8 Ke7 Qg7+ Kd6 e7 Ne6 e8R Ba1 d8N Ke5 d6+ Ke4 d7 Bae5 Re7 Rf2 Ngf3 Rf1 Rg1 h1R Rf7 h2 Re7 Nd4 Ne6 Rf2 d8Q Rf1 Nh4 Rf3 Rf1 Rg1 Qd7 h1N Rf7 Ng3 Re7 Rf2 Nhf3 Rh1 Ng1 Rf3 Rf2 Nf1 Rg2 Bd6 Rgg5 Nh2 Rgd5 Bde5 Rd6 Ndf5 Rd1 Nd4 Qf7 N6g4 Ng7 Ne6 Nh5 Nh6 Qg7 Rh3 Rc1 Qh7 Ng2 Bh4 Rcc3 Bd4 Qa4 Nf7 Ka7 Bb1 Nf3 Bf6 Qab5 Rf1 Ng1 Qg6 Ka6 Rg3 Ra7 Bde5 Rcc7 Rgf3 Kb7 Bc2 Qd7 Nh6 Rcb1 Rc1 Ne1 Rd1 Rd3 Rc1 Rbb3 Ra1 Rd1
1RQ1R1b1/b3pN1b/3Q1rr1/1qn3Rk/2Q2nRB/2Rn4/N1p3r1/K1N1n3 b - - 0 1 illegal: No possible last move, all moves rejected
2Qr3B/5rNq/1B6/nK6/2p2rN1/r2rRQb1/b1BQBNpB/kn4r1 b - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 f5 d4+ Kf6 h4 c5 d6 a5 d5 Ke5 b6 g5 h5 f4 b7 g4 d7 a4 h6 a3 h7 f3 b5 a2 d6 a1R b6 f2 Qf3 R8a4+ Kb5 Kd4 e5 Nf6 e6 Qc7 d8N Nc6 b8B Na5 b7 R1a3 d7 Ne4 e7 Nd2 e8B Bd6 Nh3 g1R Bg6 g2 Bc2 g3 Be2 f1R Nc3 Nb1 Nd5 Be5 Ne3 Kc3 Nf2 Rf4 Bd2+ Kb2 Rh3 Ka1 Ne6 Rd8 h8B Rh1 Bc1 g1R Neg4 g2 Ng7 c4 Rg3 Rh3 Be3 Rf7 Bb6 Bf4 Qc6 Bd6 Rb3 Rd3 Qf3 Bg3 Rc3 Rd2 Re3 Rdd3 B8a7 Rf4 b8Q Bb7 Qc8 Be4 Bb8 Bh7 Nh3 Bg6 Qfb7 R1f3 Nhf2 Rf7 Qe4 R3f4 Qf3 Qb7 Bd6 Qe4 Bdc7 Qe7 Bb8 Qh4 B8c7 Qh7 Bb3 Rd5+ Ka6 Bc2 Qb7 Ra8+ Ba7 Re4 d8Q Bf4 Qb4 Rd3 Qd2 Be5 Ba4 Bb3 Kb5 Ba2 Bc2 Rc8 Qd7 Rd8 Qc8 Bh2 Bcb6 Bb8 Bc7 Red4 Bh2 Bg3 Bc5 Rdf4 Bb6
1rq4n/1qk5/1Rbq1BQ1/4nQ2/r4Qn1/R1NB4/Qrp1p1Q1/KR2Bq2 b - - 0 1 legal: proof: c4 b5 f4 f5 a4 d5 axb5 dxc4 e4 fxe4 g3 Bd7 Kf2 Bf5 Ke1 Bc8 f5 h5 Na3 e6 Nc2 Bc5 Ne3 Bd6 Ng4 Bf4 gxf4 hxg4 h4 Kd7 b4 a5 d4 g5 Kd2 c5 Kc2 e3 Kb2 a4 f6 c3+ Kb1 e5 b6 c2+ Kb2 g3 f5 g2 h5 c4 b5 e2 f7 e1N f8Q c3+ Ka2 e4 f6 g4 h6 a3 d5 e3 d6 g3 b7 Nd3 h7 Nf4 b6 Ra4 f7 Ng6 Bd3 Nc6 b8R Nce5 b7 Nf6 Qf3 Nfg4 Ne2 g1Q Qg2 Qf1 Bd2 c1Q Qg7 c2 Rg1 Qcd1 Nc3 e2 Be1 Rg8 Qf6 Nh8 f8Q Rb4 Rb1 Rb2+ Ka1 a2 Qg6 Qf3 Ra8 Qe8 b8Q Bb7 Qa7 Qc8 Qff5+ Kd8 d7 Bc6 Qd4 Kc7 Ra3 Qd5 Qe3 Qb3 Rh1 Qbb7 Rh6 Rf8 Qef4 Rd8 Qh1 g2 Qhh2 g1Q Qg2 Nf7 h8Q Qf1 Qhg8 Nh8 Ba6 Qd5 Bd3 Qd6 Qb3 Rf8 d8B+ Kb8 Qd2 Qdc7 Qd6 Bb5 Ra7 Qe6 Qdf4 Kc8 Bg5 Qd8 Qa6 Kc7 Bgh4 Qee7 Qbf7 Be8 Rb6 Bc6 Q7g6 Qed6 Bf6 Q8d7 Qa5 Rb8 Raa6 Qdc8 Qa3 Rb4 Qb3 Rb5 Kb2 a1R Ra8 Rb4 Ra7 Ra5 Ra8 Rab5 Ra3 Ra4 Ka1 Rbb4 Qbc4 Rb2 Qa2
1K5R/R1r1k2q/1b1brBqB/RR3bR1/1bB3pN/r1Q5/qQ3p2/Q6n b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ke1 h5 Nc3 f4 Nd5 Nc6 Ne3 Nce7 Ng2 Rh7 Ne3 Nf5 gxf5 Rh8 Ng4 hxg4 Kd2 d5 Kd3 g5 c4 a5 h4 f2 e4 f3 b4 g3 h5 a4 e5 g2 c5 g4 b6 a3 c6 a2 f6 Qd7 h6 Ra4 c7 Bc5 b7 Bf8 b8R Ra7 b5 Ne7 e6 Nf5 e7 Rh7 b6 Ng3 Rh5 Nh1 Bb2 Ra3+ Bc3 Kf7 e8R Bd6 b7 Qe7 Be2 f1R Rg8 Re1 Rgg5 Qe8 Bf1 Re6 Qc1 Kf8 f7 Ke7 Qb1 Rg7 h7 Qg8 h8R Qh7+ Rf5 Bb4 Rg5 f2 Nf3 g1B Qd1 Bh2 Nh4 Bhd6 Ra8 Qg6 b8Q Rh7 Rb1 a1B Ra7 Bd7 c8Q Bb2 Kd2 d3 Qc4 d4 Rfa5 Ba1 Rb3 Bb2 Qa1 Bc1+ Kd1 d2 f8B+ Kf6 Bh6 Ke7 Bd3 Rg7 Kc2 d1Q+ Kb1 Qf1 Kc2 Qh3 Bb2 Be3 Qc3 Qh5 Bc4 d3+ Kb1 d2 Kc2 Qe8 Kd3 Qh2 Qb5 Bb6 Qbe5 d1Q+ Ke4 Qe1+ Kd5 Qg6 Qe2 Qeb1 Qec2 B4c5 Rbb5 Qa2 Q2b3 Bb4 Qbc2 Bbc7 Qcb1 Bc8 Kc6 Bd7+ Kb7 Bb6 Ng2 Qhh5 Nh4 Qh7 Qbc2 Q5g6 Ka8 Rg8+ Kb7 Rc8 Q2d2 Rc7+ Kb8 Be8 Bc1 Bc6 Qdb2 Be4 Bf4 Bc2 Be5 Bf5 Bf6+
q1B2Q1q/2QKp1Q1/1N1b1Qr1/1n2R1n1/R1q5/3kr2B/R3rpQ1/1n1rB3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 g4 Qc7 Nc3 Kf7 Nce2 Ke8 Nf4 gxf4 Ra3 Qd8 Ra1 Bb7 h3 Bd5 g5 Bf7 Ra4 Bh5 Ra1 Bg4 hxg4 Bh6 Rh5 Bg7 Rh1 Bf8 Kf2 Kf7 b4 a5 c4 h5 g6+ Kf6 g7 Ke5 f6 d5 g5 h4 f7 f3 b6 h3 Kg3 f2 Kg4 h2 c5 e3 b7 Ke4 b5 e2 b6 e1R g6 a4 c6 a3 c7 a2 c8Q d3 Qc7 d2 Ne2 d4 Nf4 d3 Bh3 Re2 Re1 h1Q Nd5 Nc6 b8R Na7 b7 Rh6 Nb6 Qd4 Rd8 Qc5 b8Q Nb5 Rd4+ Ke3 Ba3 Qc4 Kf5 Nf6 g8B Nh7 g7 Rg6 Qbb7 Ng5 Bb4 Ra3 Qg2 Rb3 Qc2 d1R Qb2 d2 Rf4 Kd3 Qf6 Qh2 Bh7 Ra3 g8Q Bh6 f8Q Rb3 Qgg7 Rc3 Rc1 a1Q Rc2 Qa8 Bg8 Rb3 Be6 Qh1 Bc8 Rc3 Qh7 Bg7 Ra2 Rb3 Qa1 Be5 Qhg7 Bd6 Qaf6 Rc3 Bg4 Qh8 Bh3 Rdc1 Re4 d1N Re5 Ra3 Rg1 Rb3 Be1 Ndc3 Rf1 Nb1 Rh1 Rd1 Rg1 Qc5 Rf1 Nf7 Ke6 Qc4+ Kd7 Rc3 Rh1 Ra3 Bg4 Ng5 Rh4 Rb3 Be6 Rbb2 Rhe4 Re3 Bh3 Rbe2 Rh4 Qc2 Rb4 Qc4 Rba4
2n2bb1/1Q2Rn1k/pN1b1nrQ/K3b1QR/R6B/1bp5/1B3rB1/B2Br3 b - - 0 1 illegal: No possible last move
1QN1K1QR/1qb1R1r1/6N1/kN1b3b/1q1Qq3/b1Np4/3p2qN/n1r2R1B b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Nc6 Ke1 Nce7 Bg5 f4 Ra1 Nf5 gxf5 hxg5 Kf2 d5 b4 Kd7 c4 Kc7 e4 Kb6 h4 a5 e5 d3 h5 a4 e6 d4 f6 d2 h6 a3 f7 g4 h7 g5 e7 d3 e8N a2 Rh4 Be6 Be2 g3+ Kf1 g2+ Kf2 g4 Nd6 Nh6 Qe1 Qc7 Nc3 Rg8 h8R Nf5 R4h7 Nd4 Qf1 Be7 f8N Bd5 Ng6 Qb7 Rc1 Bd8 Re7 a1B Re1 Nc2 c5+ Ka7 b6+ Ka6 c6 Bc7 b5+ Ka5 Bd1 Rac8 Qe2 Rg7 Qe3 Bb2 Rf1 Bc1 Qd4 Na1 Bb3 Ba3 Ba4 Qa7 b7 Qc5 b8Q Qb4 Qe3 Qe4 b6 Qb4 b7 Qe4 Nge2 Qb4 Ng3 Qe4 Kg1 f2+ Kh2 f3 Ndb5 Qb4 Rg1 f1B Qd4 Be2 Rf1 f2 Bb3 Be5 Ba2 Rc7 Qg8 Rc8 b8Q Bc7 Rd1 f1Q Bc4 Be5 c7 Qf4 Rf1 Qe4 Bb3 Re8 c8N Bc7 Rf4 Rd8 Nf1 g3+ Kh3 g1Q Kh4 g2 Kg5 Qh1 Kf6 g1Q Nh2 Bh5 Rf1 Qgg4 Bd1 Qd7 Bg4 Qhg2 Bf3 Qc6+ Re6 Qb7 Re7 Qge2 Bh1 Rd7 Nh4 Rg1 Ng6 Q2g2 Rf5 Rc1 Rf1 Bg3 Kg7 Bc7 Kf8 Qc4 Ke8 Qb4 Re6 Rg7 Re7
6bB/q1k2rbR/QQB1p1bQ/8/Np1r2Rb/1KBQ2nQ/1R3q1r/2r5 b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b4 axb4 g4 hxg4 f4 f5 e5 Nd7 Nc3 Rh4 Ne4 fxe4 f5 Ndf6 exf6 Rh8 d6 Kd7 h4 b3 a4 c5 d4 g5 Kd2 b5 Kc3 g3 h5 b2 f7 b1B f6 e3 h6 g2 h7 e6 d5 c4 a5 g4 a6 g3 a7 e2 Bb2 e1R Ne2 g1B Bg2 Qe7 Ra4 Nh6 Qb3 Bg7 f8R Ba6 Rb8 Rd1 Be4 Rf8 h8B g2 Rb6 Kd8 d7 Nf5 Bf3 Rb8 a8Q Bf2 Rh4 Bb7 Qa6 g1Q Rh6 Qf7 Kb4 Qh2 Nc3 Bh4 Ka3 Qe2 Rb4 Bd3 Na4 c3 Rg4 c2 Ka2 Qe7 f7 c1R Bg2 Bc2 Qh3 Ng3 Bc3 Qf3 Bh1 Bh7 Kb2 Bg8 Rh7 Qc5 Ka2 Kc7 Bg2 Rbd8 d6+ Kb8 Kb2 Rh1 Ka2 Rh2 Kb2 Rc8 d8Q Qd4 d7 Qff2+ Kb3 Qc5 Rd6 b4 Rd2 Qa7 Rb2 Be4 Bf3 Bg6 Qdb6+ Qb7 Bg2 Rc4 Bc6 Rf4 Qd4 Qa7 Qdd3 Rc8 d8Q Rd4 Qda5 Rc7 Qc5 Rcd7 Qcb5+ Kc7 f8Q Rf7 Qbc5 Be5 Qh6 Bg7 Qcb6+
2KQ3q/1pRB4/3R2RB/2Q2q1Q/1nkb1q2/1Nr1nRB1/1r1p2R1/r1q1r3 b - - 0 1 illegal: No possible last move, all moves rejected
1BqRbr2/4B1n1/2r2BNb/1q2r1QR/2n1QpB1/1pBQ1p2/2k5/KR2q3 b - - 0 1 illegal: No possible last move, all moves rejected
k4qN1/1n1NRr2/1b2b1Q1/pQQ3B1/6Nn/pp4BK/BN3N2/2r1b1bn b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 h5 g4 hxg4 c4 d5 cxd5 bxa4 b5 Ba6 Ra3 Bb7 Rb3 Bc8 Rb4 cxb4 d4 Kd7 f4 Kc7 Kf2 Kb7 Kg2 a5 h4 e5 f6 g5 f7 a3 h5 g3 h6 e4 b6 g4 h7 e3 d6 e2 d5 e1B d7 Qc7 d8Q Qc2+ Nd2 Be6 f5 Qa2 f6 Bf2 d6 Bg7 f8N Nd7 f7 Ne7 Qa4 Bb2 Qe8 Be3 Nh3 Ng8 Nc4 Rb8 Nf2 Nh6 Qb5 Bc3 Nb2 Rc8 Bc4 Nc5 d7 Nf5 d8N+ Ka8 Re1 Nb7 Nd7 Rf8 h8N Bcd2 Re2 Be1 Ng6 Rc7 Nge5 Nh4+ Kf1 Rc8 Ndc6 g2+ Kg1 Qb1 Kh2 g1N Ba2 b3 Ne7 Qf5 Ng8 Nh3 Kg3 Bd4 Bg5 Qf6 Re3 Qd8 Re4 Rc1 Re3 Nf3 Kg2 g3 Neg4 Qc8 Qd8 Qb8 Qf6 Bc5 Qg6 Nh4+ Kh1 Qe8 Re2 g2+ Kh2 g1B+ Kg3 Qc8 Re4 Re8 f8Q Re7 Qff5 Be3 Qfc5 Rf7 Re5 Qf8 Re4 Nf4 Re5 Nh5+ Kh3 Ng3 Re4 Bc4 Re7 Nh1 Qcf5 Nd6 Qc2 Be6 b7+ Ka7 b8B+ Ka8 Qcc4 Nb7 Bg3 Bb6 Qcc5
3NNN2/1Bk1p3/2q2Q2/1r3pq1/3nRb1r/R2bQ1nN/K2np3/nN1R2Q1 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 h5 g4 d5 cxd5 hxg4 f4 Nf6 e4 fxe4 b3 Bd7 f5 Be6 Bb2 Ng8 f6 Bc8 f7+ Kd7 Bf6 gxf6 d4 a5 Kd2 c5 Kc3 c4 Kb2 f5 h4 e3 h5 a4 b6 c3+ Ka2 a3 b7 g3 b4 c2 h6 c1Q d6 e2 h7 g2 b5 Qh6 d5 Qe8 b6 Ra4 Nh3 g1N Bg2 Nc6 b8N+ Kd8 b7 Rh4 d7 Qf6 Na6 Qg5 b8R Nf3 Nc7 Ncd4 Qg1 Nd2 Rb4 Bh6 f8N Qeg6 Ne8 Nf6 Ra4 Rg8 h8Q Nh5 Qf6 Ba6 Qe3 Bd3 Rd1 Ng3 Bf3 Ne6 Re4 Nd4 Ng7 Kc7 d8N Rh8 d6+ Kb6 d7+ Kc7 Qf7 Qc6 Qf6 Rg8 Ne8+ Kb8 Nde6 Rg6 d8Q+ Kb7 Rg4 Nc2 Qf2 Qf4 Qf7 Qce4 Qg1 Qe3 Qb6+ Kc8 Nd8 Qa4 Qa7 Rb6 Qf6 Rb4 Ba8 Qc6 Re4 Rb5 Qc5 Qf4 Qce3 Nd4 Bb7+ Kb8 Rc1 Qg4 Rc3 Qf4 Rb3 Qg4 Nc3 Bf4 Rd1 Qg5 Ka1 a2 Kb2 a1N Nb1 Bc7 Ka2 Bf4 Nd6 Kc7 Rc3 Rc5 Ra3 Rb5 Ne8+
2R3N1/pQQq2N1/5B2/bQ2n1Kn/2bp1r2/4k1pR/1Q1R1N1b/1q1qn2Q b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Qe1 h5 Bh3 f4 Qd1 Na6 Ke1 Rb8 Qd3 Rb6 Qd2 Rf6 Qd1 Rf5 gxf5 Ba3 Bg4 hxg4 Bd2 Be7 Bc1 Bf8 Kd2 Ke7 b4 Kf6 c4 Kg5 h4+ Kf6 e4 Ke5 f6 g5 c5 d5 h5 g3 h6 f2 h7 f1Q c6 g2 b6 d3 c7 Kd4 e5 f3 e6 f2 f7 g4 b7 g3 b8Q Ne7 b5 Nb4 b6 Nf5 b7 Ke4 e7 Be6 e8Q Bg7 c8R Qh4 f8N Nc6 Qc7 Qh2 b8Q Qh3 Ra2 Ne5 Qeb5 Bf7 Ne6 Rf8 h8Q d4 Qh7 Bf6 Ng7 Bd8 Nc3+ Kf4 Qe2 Bc4 Q8b7 Qg4 Ba3 Qb1 Rh3 Rf6 Bc1 f1N+ Ke1+ Nd2 Ne4 Rf7 Nf6 Rf8 Ng8 Rf6 Qd1 Ke3 Qc2 Rf8 Qcb2 Rf7 Nf3 g1B Ng5 Bh2 Ne4 Rf8 Nf2 Rf7 Ne8 Ng7 Qh1 Nh5 Ng7 Qd7 Qcb7 Ba5 Qc7 Kf4 Q7e4+ Kg5 Qeb7 Rf3 Kd1 Rf4 Ke1 Nf3+ Kf1 d2+ Kg2 d1Q Bd2 Qe2 Bb4 Re4 Be7+ Kf4 Bf6 Ke3 Q2b4 Rg4 Rd2 Qed1 Qb2 Bg1 Rh2 Ne1+ Kh3 Rg5+ Kh4 Rf5 Rh3 Rf4+ Kg5 Bh2 Q5d5 Nc2 Q7b5 Ne1 Qdb7
B1Q1RKQ1/6Nr/1n1Bpbk1/p4B1R/1bQ1bQ2/Rq3p2/1r1rrQ2/6r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 h4 Qb6 g4 Qc7 h5 Qb6 Nc3 Qd8 Nce2 Nc6 Nf4 gxf4 g5 Ne5 Ne2 Bb7 Ng1 Ng6 hxg6 Bc8 Kf2 d5 c4 a5 b4 h5 c5 e3+ Kf3 h4 Kg4 e6 c6 h3 c7 h2 f6 d3 f7+ Ke7 b6 d2 b5 e2 b7 e1B b8Q d4 g7 d3 b6 Bb7 c8Q Qd6 g6 Kf6 Bg2 Bh4 Ra3 Be7 f8Q+ Ke5 Nf3+ Ke4 Qb3 d1R Nd4+ Ke5 Qa2 d2 Nf5 Bhf6 Qac4 Be4 b7 Re1 Qa7 d1R b8R Qd2 Qf2 Bb4 Bf3 Ne7 g8Q Qd5 g7 Rd4 Be3 Rdd1 Bc5 Rd2 Qff7 Rh3 Qff8 Rg3+ Kh5 Rgg1 Kh6 Ree2 Kh7 Qb7 Bg2 Nd5 Kg6 Qc6 Kf7 Qb6 Ke8 Ra6 Qff7 Qb5+ Kf8 Nb6 Ra8 Qa4 Be7 Qb3 Rb8 Bd3 Ba8 f3 Bc5 Be4 Be7 Kf4 Bd6+ Kg5 Qfc7 Bb1 Qf4+ Kg6 Qcc4 Rg5 Qb7 Rg3 Re8 Be4 Qbc8 Rg1 Qh8 Na4 g8B Rb6 Ng7 Rb8 Qe5 Nb6 Bh7+ Kh6 Bf5+ Kg5 Bg4+ Kg6 Qf4 Rb7 Nh5 Rh7 Ng7 Rb1 Qg8 Rbb2 Rf1 h1R Rc1 R1h2 Rh1 Rg2 Rh5 Rg1 Bf5+
2N1R2q/1rpp3n/1Q3r1p/2b2kN1/1bR3R1/B5Qb/b2Nq1b1/N1K3QN b - - 0 1 legal: proof: e4 e5 b4 g5 d4 f5 h4 gxh4 c4 b6 a4 Qg5 a5 Be7 a6 Nc6 b5 Na5 c5 Bf8 Bd3 Nb7 axb7 Qd8 cxb6 exd4 e5 Ke7 Bc2 Ke8 Be4 fxe4 Kd2 Ke7 b8Q Ke6 g4 a5 f4 h3 f5+ Kd5 b7 h2 e6 Ke5 b6 a4 f6 h6 f7 a3 e7 d3 e8R+ Kf6 g5+ Kg6 Nh3 a2 Nf2 Bc5 f8N+ Kf5 g6 Kf6 g7 Ra7 Ba3 e3+ Kc1 e2 Qg1 e1B Ne6 Kf5 Nd2 Qe7 Ng5 Nf6 g8N Nh7 Rb1 Qe6 Rb4 Qe2 Rc4 Ra6 Qa8 Ra7 b8Q Ba6 Qg3 Rb7 Rg1 h1B Qaa7 Bg2 Nh1 Bh3 Rg2 Bb5 Rg1 Bc6 Rg2 Bf3 Rg1 Bfg2 Ne7+ Kf6 Nc8 Rf8 Rf1+ Kg6 Rff4 Rf6 Rg4 Kf5 Qa5 Bf2 Qba7 Be1 Qb4 a1Q+ Qb1 Rb8 b7 Qae5 Qbb6 Qd4 Nb3 Beb4 Na1 d2+ Kc2 d1B+ Kc1 Ra8 b8N Bb3 Nc6 Rb8 Na5 Ba2 N5b3 Rb7 Nd2 Qde5 Qa4 Qd4 Qd1 Qde5 Qg1 Qd4 Re3 Qe5 Ree4 Qe8 Re3 Qh8 Re8
3n1Q1N/p5nk/1brN1N2/p1Qb2K1/1nB2Bn1/2nq2Np/R2nQ1B1/2N5 b - - 0 1 legal: proof: g4 e5 f4 exf4 c4 g5 h4 d5 cxd5 b6 b4 Na6 a4 Rb8 a5 bxa5 h5 Rb6 Ra2 Rg6 hxg6 Be6 Rc2 Bc8 Rc4 f3 Rf4 gxf4 g5 Be7 Nc3 Bc5 Nb1 Bf8 Kf2 f5 e4 h5 d4 c5 d6 h4 d7+ Ke7 e5 c4 g7 Kf7 d5 Kg6 d6 c3 b5 h3 e6 c2 e7 Bb7 e8N Ne7 g8B Bh6 b6 Bg7 Rh2 Nb4 Qe2 Rh6 Nd2 Bd5 b7 Nec6 Nb3 Bd4+ Be3 c1N b8Q Nca2 Qc8 Bc5 Nc1 Bb6 Bg2 Nc3 Be6 Kh7 g6+ Kh8 g7+ Kh7 g8N Rf6 Ke1 f2+ Kd2 f3 Bh6 f4 Bg5 Qe7 d8N Qd7 Nf7 Nd8 Qc5 Qb5 d7 f1N+ Ke1 Ne3 Kf2 Nf5 Nh8 Rg6 Nd6 Qd3 Bf7 Ng7 Be6 Nb7 d8Q Rh6 Qf8 Nd8 Qc2 Rg6 Nge2 Rh6 Ng3 Rg6 Kg1 f2+ Kh1 f1N Qe2 f3 Bf4 Ne3 Bf7 Bc6 Bc4 Bd5 Kg1 Rf6 Kf2 Rh6 Nh1 Ng4+ Kg3 Rg6 Kh4 f2 Ng3 Re6 Kg5 f1N Rh1 Nd2 Rd1 Nf1 Rd2 Rf6 Ra2 Nd2 Nde4 Rc6 Nd6 Be6 Qcf2 Bf7 Qc5 Bd5 Nf6+
bqn3BB/BQq3b1/1b1rN3/2B2nb1/6bB/1p1NnBNk/B2K4/2R2q2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 a4 h5 Ra3 b5 Rc3 f4 Rc6 Ra6 Rg6 Rf6 Rg5 Rf5 gxf5 Kf7 Rg2 Ke8 Rg4 hxg4 d4 Ke7 e4 Kf6 h4 g5 a5 c5 h5 g3 d6 g2 a6 b3 d7 f2+ Kd2 g4 e5+ Kg5 h6 c4 e6 f3 f6 g3 e7 Kg4 e8B b2 a7 b4 a8B b3 h7 Qc7 d8B Bg7 d5 Nd7 d6 Nh6 f7 Nf5 f8B Nb6 Nh3 g1B d7 g2 Nc3 b1B Nf4 Be4 Bd3 f1Q Nce2 f2 Bb1 Bf3 Bc5 c3+ Kd3 c2 B1e3 c1Q Ba2 Qb8 Bf7 Bd5 Bh4 Rd8 h8B Bf3 Bcd4 Qcc7 Kd2 Bh2 Nd3 g1B Bad5 Bf4 Bc5 Bg5 Bg8 Bb7 Qe1 Nc8 Ng3 Ba8 Qc1 Bd1 Ba7 Bf3 Qc6 Be2 Qb7 Bf3 Rh2 Be2 Rg2 Kh3 Be4 Bg4 Bf3 Rf8 d8N Rf6 Bc5 Rd6 Ba7 Qa1 Ne6 f1N+ Ke2 Qb1 Bec5 N1e3 Kd2 Qa1 Re2 Qf1 Re1 Bh2 Ne2 Bhe5 Rc1 Bd4 Ba3 Bc5 Ng3 Bb6 Bc5
2rb2K1/qr2N3/2BR2RR/1p5R/n2n1RRr/pR1N2r1/n1k2bQ1/1N3r2 b - - 0 1 legal: proof: e4 f5 exf5 g5 b4 b5 a4 bxa4 h4 gxh4 b5 Nh6 b6 Ng8 c4 d6 b7 Be6 d3 Nf6 Be3 Qd7 Bb6 cxb6 c5 Bc4 dxc4 Ng8 Qd3 Qc8 Qd1 Qd8 Ke2 Kd7 Kf3 Kc6 Kg4 a5 Kh5 e5 f4 d5 g4 d4 f6 e4 g5 d3 f5 d2 f7 a3 f6 a4 g6 e3 g7 a2 Qb3 d1N Qc2 h3 Kg5 h5 Kg6 h4 Rh2 e2 Na3 e1B Qb2 Qd7 Nb1 a3 Ne2 Na6 b8R Nb4 Nc1 Be7 f8R Nh6 g8R Nc3 Kg7 Bf2 f7 Ra7 Rfd8 Rb7 f8R Na4 Nd3 Nf5+ Kf7 Qc7 Rg4 Nd4 Rd5 Rg8 Bg2 b5 Rbd8 Rh8 Rfg8 Qb8 R8g6+ Bf6+ R8d7 Qa7 Rf4 Rc8 Rh5+ Nf3 Rh1 h2 Rgg4 Bd8 Kg8 h3 Rd6+ Kc7 c6 Kb6 c5+ Ka5 c7 Nd4 Rg1 h1R Bc6 h2 R1g2 Rf1 Rhh6 Rcb8 c8N h1R Ne7 Rh4 Rgg6 Rc8 R2g4 Rg1 Rh5 Rg3 Rhh6 Be1 Qg2 Bf2 Nc3 Ne2 Be4 Rcb8 c6 Nd4 Rb1 a1R c7 Na2 Rb3 Rf1 c8R Ra8 Rc5 Rc8 Bc6 Rb6 Rb1 Rb7 Nb2 Kb4 Rch5 Kb3 Nd3+ Kc2 Rb3 Rc1 Nb1 Rd1 Qe4 Rf1 Qg2
K1RR1n2/1N3b1p/Rr5n/1BnRR1N1/2p1n1N1/4R1b1/1r3bR1/Q4qkr b - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 h4 g5 b3 gxh4 Ba3 Qd7 Bc5 Qd8 Be3 d4 f4 exf4 c3 fxe3 cxd4 Bh3 d5 Bc8 Ke2 Ke7 Kd3 Kf6 Kd4 Kg5 g4 Kf4 d6 Kg3 Kd5 Kf2 d4 f5 b6 a5 g5 c5 b7 f4 e5 f3 b4 h3 b5 a4 e6 a3 e7 h2 e8R e2 d7 e1N b6 a2 g6 Nc2 g7 Bd6 Re5 Bf8 Na3 Ne1 Bb5 c4 Nc2 Na6 Kc6 Bd6 b8R Qf6 d8R Nc5 b7 Nh6 g8R Ne6 d5 Nd3 Rgg5 Nf8 Ne3 Be6 Rbc8 Bf7 b8R Ra6+ Kb7 Rb6+ Ka8 Nc5 Ng4+ Kg2 Qb1 f2 Nh3 f1N Rde8 Bc7 d6 Nd2 d7 Qf1 d8N Nde4 Nb7 Bd6 Rd5 Bg3 Rge5 Rg8 Ng5 Rgg6 Ba6 Rb2 Bb5 Rb6 R8e6 Bf2 Qd1 Bg3 Qd4 Bf2 Re1 a1B Re3 Rc2 Qd1 Bd4 Rg6 Rb2 Qa1 Bc3 Rcd8 Bce1 Rbc8 Bg3 Rf6 Bef2 Be8 R6b4 Ra6 Rb6 Bb5 Qc1 Rhe1 h1R R1e2 Qf1 Rc2 Kg1 Rcd2 Be1 Rh2 Bef2 Rg2+
2rnk2B/4B3/2NB2bK/r1rQrrR1/7Q/2Bn1Bq1/1b2BqBb/1N2r3 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 Kf2 f5 Kf3 c5 g4 h5 e4 b3 d4 h3 g5 b2 g6 h2 b7 h4 g7 h3 e5 c4 d6 c3 e6 c2 d5 Ra5 e7 Nh6 g8B Nd7 b8Q Qc7 b6 Nc5 b7 Nf7 Be2 Nd8 Bd2 c1B Bc3 Nd3 Qa7 Be6 b8B Bf7 Qf2 Bg6 Qh4 Bg7 Be6 Be5 Bc8 Rh5 Bb7 Rg5 Nd2 b1R d7+ Kf7 d6 Bb2 Bc6 Rc1 e8B+ Kf8 Nb1 Rc2 Bd4 Rcc5 Bc3 Rh5 Bf1 Rh8 Ne2 Rh5 Rg1 h1R Rg2 h2 Rg5 Rg1 Bd5 h1R Bg2 Re1 Nd4 Rh8 Bb7 Re2 Qb3 Rhe1 Qd5 Rg8 Nc6 Re4 Bf1 Rh8 Be2 Re3+ Kg2 f3+ Kh3 f4 Kg4 f2 Bf3 f1Q Bf7 Ne6 d8B Qf2 Bf6 Nd8 d7 R3e2 Bg2 f3 Ba6 Rg8 Bh8 Bh2 Be6 Re5 Bf7 Ne6 d8B Qd6 Bdf6 Nd8 Be6 Ke8 Be7 Qg1 Bf5 f2 Be4 f1R Bf3 Qf6 Bbd6 Qf2 Bb5 Qg7 Ba4 Rf8 Bad1 Rff5 Bde2 Rc1 Nb8 Rc8 Nc6 Rfe1 Bd4 Rcc5 Bc3 Bh7 Kh5 Qg8 Qb3 Bg6+ Kh6 Bf7 Rh5 Qgg3 Rg5 Bg6 Qd5
q2qq3/1bBb1kqp/1Q1KN1R1/Qr1QQq2/5n2/3Q2r1/1R1n3Q/1Q2n1N1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Qf6 Kd2 Qe7 Ke1 Qd8 Kd2 d5 Kd3 a5 e4 f5 b4 a4 c4 f2 c5 f1N e5 a3 c6 f3 e6 f2 c7 f4 b6 f3 b5 a2 e7 Na6 g7 Bb7 c8Q Rb8 g6 Nf6 Qe6 Rg8 Rh6 Nd2 Na3 Qc8 Nc2 Nh5 Rb1 a1Q Rb2 f1B+ Qee2 Bh3 Qh2 f2 Qe2 Bc6 b7 f1Q b6 Qf2 Qe4 Bhd7 Qee5 Qf5+ Qe4 Nb1 Bf4 Nd2 Bc7 Qa2 Ne1 Qd8 Nef3 Qa5 Ng5 Nc5+ Ke2 d3+ Ke3 Nf4 Kd4 Qa8 Ne6 Qf7 Ke5 d4 Qe1 Qf5+ Kd6 Nb1 Rb5 d2 Nf8 d1Q Qa5 Qe1 Rb3 Rh8 g8Q d3 g7 d2 Qc4 Bd5 g8Q d1Q Rf6 B5c6+ Qgd5 Nd2 Re6 Kf7 e8Q+ Kg8 Qce4 Qa1 Qb1 Qc3 Rb2 Ncd3 Qe7 Qe2 Qh3 Ne1 Qhd3 Nfg2 Qe8 Kg7 Rh6 Rg8 Qee4 Qd4 Qh4 Nf4 Qh2 Qee8 Ne6+ Kf7 Ra2 Nef3 Rb2 Rg3 Rg6 Ne1 Qaa1 Qa7 Qa5 Ra8 b8Q Qg7 Qb7 Rb8 Qe5 Bd5 Qc6 Qa8 b7 Bc4 Qcd5 Ba6 Bb6 Rc8 b8Q Rc5 Qa7 Bb7 Bc7 Rb5 Q7b6
2B1N2k/1bKnqNr1/1N3np1/b4Q1N/5Q2/1b1rnR2/2bNpN2/2rNR3 b - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 f5 exf5 b5 a4 c5 Ba3 cxd4 axb5 Kf7 b6 Ke8 b5 Ra7 Bc5 Ra8 Bb4 axb4 Kd2 Kf7 Kd3 d5 h4 e5 f4 b3 c4 b2 h5 g3 f6 g6 c5 g2 c6 Rh6 c7 Bd7 c8N Ba3 b7 Ra5 b6 Rb5 f5 Rh7 h6 Qe8 Nc3 b1N Nh3 g1R Qh5 Rg7 h7 Rg2 h8N+ Kf8 f7 Rh2 Nd1 Na6 b8Q Qe6 b7 Nf6 Nb6+ Bc8 Nc4 Bb4 Nd2 Rc5 Nhf2 Qe7 Ra3 Rc1 Bh3 Nc3 Re1 Ba5 Qc7 Rg2 b8N Bb7 Qd6 Rg3+ Qf3 Rg8 Nd7+ Kg7 f8N Nb8 Nb6 Nbd7 Ne6+ Kh7 Nf4 Rg7 Nh5 Kg8 Nb2 Nd1 Nf7 Ne3 Nbd1 Kh7 Qe6 Kg8 Qf4 Kh7 Nd6 Kh8 Ne8 e4+ Ke2 Nc2 Rf3 e3 Kd3 e2 Bg4 Ne3 Qee5 Ng8 f6 Rh3 f7 Ngf6 f8N Rg3 Ne6 Rh3 Ndc4 Rg3 Nd8 Rh3 Nc3 Rg3 Kd2 d3 Qef5 d4 Nf7+ Kh7 Nc8 Rg1 Qe6 Nb8 Rd1 Rf1 N8b6 Rh1 Nh6 Kh8 Qd5 Rg1 Bc8 Nbd7 Rf1 Rb1 Qdf5 Rb3 Kc1 Ra3 Kb2 d2 Rc1 d1B Nd2 Bc2 Ra1 Ra4 Rc1 Rb4+ Ka3 Rb3+ Ka4 Ra3+ Kb5 d3 Nb3 d2 Rd1 Ba6+ Kc6 Bb7+ Kc7 Re1 Nc5 Rf1 N5e4 Rg1 Nb5 Rd3 Nbc3 Bb3 Rc1 d1B Nd2 Bdc2 Nf7+ Kh7 Rb1 Rf1 Rb2 Ra1 Rb1 Kg8 Rf1 Rc1 Re1 Kh7 Ncd1 Kg8 Nfd6 Kh8 Nf7+
n7/1rqp3q/r2N1KRN/N1qRr3/3B3Q/2bNNnk1/Q2ppN2/N4b2 b - - 0 1 illegal: No possible last move
2KN3B/4qRQ1/4B3/NBp1q3/q1r2NB1/B2b1k2/q2q1pn1/3n1NnN b - - 0 1 legal: proof: c4 a5 f4 e5 a4 exf4 b4 b5 axb5 d5 b6 dxc4 b5 Bh3 Ra4 Bd7 Rb4 Bc8 g4 axb4 h3 f5 Ba3 g5 Bc1 f3 Nc3 f4 Nb1 Bh6 Qb3 Ra3 Qd1 Rd3 h4 Rd5 Kf2 Rf5 gxf5 g4 Ke1 Bg5 hxg5 Bb7 Rh3 Ba6 Rh1 Bc8 Kf2 Ke7 d4 Kd6 e4 c5 e5+ Kd5 b7 Ke4 b6 h5 d5 h4 e6 h3 g6 h2 d6 b3 d7 b2 e7 c3 e8B c2 f6 Ne7 f7 Qc7 f8N Na6 b8N Qd8 b7 Rh3 g7 Ng6 g8B Qe7 d8N Nb4 Be6 Nd5 Beb5 Rh4 Bfe2 Nc3 Nbc6 Bd7 b8B g3+ Ke1 g2 Kd2 f2 Nh3 f1Q Na5 g1N B2g4 f3 Be5 Nf4 Ng6 Bc6 Bh8 Ng2 Ngf4 Qc4 Qf1 Qa4 Qf2 Nd5 Qg3 Nde3 Kc3 Be8 Bd2 Bg6 Bc1 Qa1 Kb3 Nd1 Nd2+ Ke3 Kc4 b1Q Kd5 Bd3 Kc6 Qa4 Nf2 Qba2 Bcb2 c1Q Ba3 Qc3 Kb6 Qe5 Kc6 Nh3 Rf1 h1Q Kb6 Qh2 Nh1 Ng1 Rf2 Kd4 Nf1 Ke4 Bed7 Qd2 Kb7 Qa2 Be6 Rg4 Kc8 Qh6 Rb2 f2 Rd2 Rh4 Qg7 Kf3 Re2 Qhf6 Re4 Qc3 Re5 Qcd2 Rf5 Qfa1 Rf7 Qe5 Bf5 Rg4 Bde6 Rh4 Ne2 Rd4 Nf4 Rc4 Bg4+
rrn1n1RK/b3Np2/1B4q1/1r1p1B1B/2r2krn/1RRR1Q1R/4B3/1r5B b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Nd2 Bh6 Ndf3 gxf3 g4 Bb7 h3 Bd5 g5 Be6 Bg2 Bg7 Bf1 Bg4 hxg4 Bf8 Kf2 Ke7 e4 Kd6 c4 Ke5 b4 a5 g6 h5 b6 a4 b7 h4 c5 a3 g7 a2 g5 d6 c6 d3 c7 d2 c8B h3 b5 h2 b6 Ne7 g8B Ng6 Qe2 d1R Bg4 Rd3 Nh3 Na6 b8R Ra7 b7 Rb3 Rc8 Rb2 b8R Bh6 Be3 Qb6 Rd1 a1N Bh5 Nc7 Rd3 Nb3 Bh7 Nh4 g6 Re8 g7 Nc5 g8R Na4 Bf5 Rb5 Qd2 Rf8 Be2 Ne8 Rcc3 Ra8 Qb2 Qc6 Bb6 Bg5 Rg1 h1R Rg3 Rb1 Qa2 R1b4 Qc2 Rc4 Qd2 Kf6 e5+ Ke7 e6 Kf6 e7 Ke5 Qd1 Bh6 Qh1 Bg5 Qg2 d5 Be4 Qg6 Rb7 Nc7 e8B Bd8 Bc6 Ne8 Bd7 Bc7 Bdf5 Bb8 Rc7 Ba7 Rb3 Rd4 Rcc3 Rc4 Ng5 Rb8 Nh7 Ra8 Nf6 Rb8 Be3 Nb6 Rh3 Nc8 Bb6 Ra8 Rh8 Rb8 Ng8 Ra8 Ne7 Rb8 Ke1 f2+ Kd2 f1R Rg8 f3 Ke3 f2 B4f3 Rb1 B3e4 f1R B4f3 Rg1 B3e4 Kf6 Kf4 Qh7 Kg4 Ke5 Kg5 Ng6 B4f3 Qg7 B3e4 Qf6+ Kh6 Nh4+ Kh7 Qg6+ Kh8 Kf4 Qh1 Rg4 Qg1 Ng7 Bh1 Rd8 Qg2 Ne8 Bg1 Ra8 Bd4 Nb6 Bc5 Rdb8 Bf2 Nc8 Bd4 Rc6 Bb6 Rc4 Qf3+
1BQB2Bk/N5rn/7b/2r2rrn/3b1rNb/K2BbQ2/3N1Bb1/2R2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Bg4 Ra3 Be6 Ra1 Bc8 b4 gxh4 e4 a5 Ra2 a4 Ra3 Qf6 Rah3 Qa6 Re3 Qa5 bxa5 fxe3 d4 h5 g4 f5 d6 Kf7 d5 Kg7 d7 c5 d8B a3 d6 e2 Kd2 e1B+ Kc2 f4 Kb3 f3 e5 f2 g5 h3 d7 h2 a6 a2 b6 a1B g6 h4 a7 c4+ Ka2 h3 b7 c3 e6 c2 e7 Nf6 e8Q Nh5 Nd2 Rg8 Ne2 Bd4 Bb2 c1B Nb1 Be3 Ng1 Kh8 Qb3 Bfh6 Ka3 Rf8 Qee6 Rf5 Nf3 Rg5 Rg1 h1R Nbd2 h2 Ne5 Rf5 Bd3 f1R Ng4 R1f4 Qd1 Rg5 Qf3 Bh4 Rc1 Rg1 Bf1 h1R g7+ Kh7 g8B+ Kh8 Qa6 Rh2 Bc3 Rf2 Bca5 Rff5 Bdb6 Rc5 d8N Nd7 b8B Nf8 Nc6 Nh7 Qb7 Bf5 Qc8 Be4 Bd8 Bd5 Bac7 Rf5 Bg3 Rfg2 Bf2 Be4 Nh2 Rgg5 Ng4 Bd5 Bbc7 Rb8 a8B Rb4 Na7 Bb7 Bb8 Rg3 Qf4 Bg2 Be4 Rg7 Bed3 Rgg5 Ne5 R3g4 Qg3 Rb7 Qf4 Rbg7 Qf3 Rgf4 Ng4
RN1n2n1/3K3Q/3b2R1/3QQ3/4npQ1/2Nn1r2/Rp2Bqn1/Q2qr1kQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Bh3 exf4 Bg2 Na6 Bf1 Nb8 gxh5 b3 a4 b6 Ba3 Bf5 Bb4 Bd3 Ba5 Bb5 axb5 bxa5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Kf5 Kd4 h4 g5 e4 c5 d6 f6 Ke6 f5 e5 f3 b6 g4 h6 f4 d7 a4 h5 f2 h7 a3 b7 b2 h6 c4 Ne2+ Kd3 Rg1 a2 Nbc3 Qa5 d8Q+ Bd6 Qc8 Nc6 b8R g3 Kd7 g2 e6 Qc5 e7 Nd8 e8Q Ra3 Ra8 Qh5 Nd4+ Qe2 Rb1 a1N Nc6 Nc2 Ra1 Ne3 Nb8 Kd4 Qc1 Qd1 Be2 f1N Ra2 Ng3 Qa1 Ne4 Qh5 Rb3 Qh1 Ra3 Ke8 Rb3 Qg4 Ra3 Kd7 Rb3 Rf1 g1Q d3 Qf2 Rg1 Nc2 Rg2 Ke3 d4 Ne1 d5 Ra3 Qe6 Rb3 Rg6 Ng2 Qg4 Bc7 Na4 c3 d6 c2 Nc3 c1N Qg5 Ne7 Qg4 Re8 h8Q Ng8 h7 Nd3 Qe5 Re7+ Kc8 Ra3 d7 Bd6 h8Q Rh7 Qg1 Rh1 Qh7 Rb3 Qgh2 Re1 Qh1 Qh4 Qhh3+ Kf2 Qhf3+ Kg1 Qfh3 Ne6 d8Q Qf2 Kd7 Ra3 Qda5 Nd8 Qad5 Nc1 Nb5 Rf3 Nc3 Nd3 Qh1#
Rb1rQ1BN/N2p1K2/q3Q3/3b1b1N/1nrB2B1/6pk/qq1qN3/1N2N3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 e4 b5 a4 f5 a6 c5 a5 Nc6 Ra4 Na7 Rd4 cxd4 exf5 b4 d3 Nb5 Bd2 Nc3 Be3 Na4 Bc1 Nb6 axb6 Rh3 Bg2 Rxd3 Bf1 Rh3 Nf3 Rh4 Ng1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 c4 g5 h4 d3 f4 b3 h5 g3 a7 d2 c5 g4 h6 b2 h7 g2 b7 g3 b8N Ne7 c6 Ba6 c7 Ng8 c8N Bg7 Qe2 d1B Nc6 Qe8 Nd4 Nh6 Ndf3 Qe6 Ne1 Ng4 Be3 Bc4 Bd4 Rd8 h8N Ne3 Rh3 Rb8 a8B Qa6 Na7 Nc2 Qe3 Bh6 Ne2 g1Q Bd5 Qh1+ Bg2 Qh2 Bf3 Rbc8 Bg8 Nb4 Qb3 Bf7 Qd5 Rc4 Qe6+ Kg7 Rh5 Bg6 Rh4 Bb3 Rh3 Bg5 Rh6 Bh7 Rf6 Bg6 Rf8 Be7 Re8 Bd6 Rf8 Bb8 Re8 Bf7 f6+ Kh6 f5 Bg6 f7 Kg5 f8N Kh4 Nh7 Kh3 Nf6 Qg2 Nh5 Qh2 Ke3 e4 f6+ Bf5 f7 Qg2 f8Q Ba2 Nbc3 b1Q Qfe7 Qb2 Nb1 Qh2 Rf8 Qg2 Qe8 Bb3 Qd6 Qh2 Kf4 e3 Kg5 Qba2 Kf6 Qf2 Nec3 Qfb2 Kf7 e2 Qc6 Bbc2 Qce6 Be4 Nc2 e1Q Ne2 Qd2 Ne1 Bd5 Qe7 Be5 Re8 Ra8 Rc8 Bf4 Qe8 Bd6 Rc7 Rd8 Rc8 Be5 Ra8 Bb8 Bg4+
6b1/Q1Qb1R1q/1KBb1kn1/N1BQ1B2/B5B1/q3bn1n/3Nr2B/r1qn4 b - - 0 1 legal: proof: f4 c5 b4 g5 c4 b5 h4 e5 a4 exf4 axb5 Na6 Ra3 Nb8 d4 cxd4 Rc3 dxc3 hxg5 Qf6 Qd4 Qb6 Qd1 Qd8 Kf2 Ke7 e4 d5 g4 a5 c5 h5 b6 f5 b5 h4 c6 d4 c7 h3 e5 d3 b7 f3 Ke3 c2 b6 f2 g6 a4 g7 a3 g5 a2 e6 a1B g6 d2 Bb5 f1B Na3 h2 Bc6 Nh6 g8Q Nd7 b8Q Kf6 e7 Bc4 e8B Bd6 b7 Nf8 g7 Ng6 Qh7 Bd7 c8B Bg8 Qa7 Nf7 b8B Qa5 Nc4 Ng5 Nf3 Nh3 Ba3 c1Q Rf1 h1Q Bc5 f4+ Kd3 Qa2 Na5 Bd4 Qb3 d1N Nd2 f3 Qd5 f2 Ba4 Bde6 Bec6 Be3 Qc7 Bg4 Bf5 Qaa1 Qa7 Qca3+ Kc4 Q1c1+ Kb5 Qh2 Bd3 Bd7 Bf5 Qh1 Kb6 Qh2 Rg1 f1N Rg3 Qh1 Rf3 Nh2 Rf2 Nf3 Bc7 Bge6 g8B Qh2 Bf7 Rhe8 Bg4 Re7 Be8 Bg8 Bf7 Qf4 Bfe6 Qh6 Bef5 Qg7 Qh6 Qh7 Qf4 Bd4 Bb8 Re2 Rf1 Be3 Qfc4 Bf8 Bh2 Bd6 Qf4 Bf8 Qfc7 Bd6 Kb7 Rb8+ Ka6 Rb1 Rf2 Ra1 Kb6 Kg5 Rf1 Kf6 Qcb8 Nfg5 Be6+ Ke7 Rf6 Nf3 Bef5 Nhg1 Qbc7 Nh3 Re6+ Kf7 Re7+ Kf6 Rf7+
q1Bkqn2/1R1r2R1/N5r1/1B6/nQ2Q1B1/3B1qnn/3rbBnK/3Bn2R b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Nd2 e4 Ndf3 exf3 hxg5 Qc7 Bh3 Qb6 Bf1 Qd8 Kf2 h5 c4 d5 e4 f5 b4 a5 c5 a4 b6 h4 e5 a3 c6 a2 g7 d3 c7 d4 b7 d2 b5 h3 b6 h2 e6 d3 e7 Nd7 b8Q Ngf6 g8B Rh7 b7 Nb6 g6 Nfd7 g7 Na4 Qc2 d1R Qb1 d2 Ba3 Nf8 Ne2 Ra6 Qe4 Rg6 Rc1 a1N Be6 Nc2 g8B Ne1 Rg1 h1Q Rg5 Bd7 c8B Bb5 Nc3 Be2 Bd5 Qh5 Kg1 Rhg7 Bh3 f2+ Kh2 f1Q Qd4 f3 Qe3 f4 Nb5 f2 Bc4 f3 Bd3 Qa5 Bb3 Qa8 Qe4 Rh7 Bc5 Qh1+ Kg3 f1N+ Kf2 Ne3 Kg3 f2 Bhg4 N3g2 Be3 Rc6 Rg7 Rg6 Qd6 Qf1 b8R Qfh1 Qdb4 f1N+ Kf2 Ng3 Rb7 Q1h3 Kg1 Qe5 Bf2 Qhh5 Bh3 Qf3 Bcg4 Qe6 Nc7+ Kd7 e8B+ Kd8 Beb5 Qe8 Rg8 Rhg7 Na6 Rd7 Ra1 Rb1 Bbc2 d1N Kh2 Rb2 Rg7 Ra2 Bb3 Rd2 Bbc2 Nf4 Bb3 Ne3 Bd1 N3g2 Rb1 Rdd6 Bc8 Rd7 Bg4 Nh3 Bb3 Nc2 Rh1 Nce1 Bd1
q2b2Rn/q1r4R/b2RR1Q1/2NN2b1/K2RNRnq/5q2/B4k1p/1r1Q2r1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ba3 exf4 axb5 Bb7 b6 Ba6 b5 Bc8 Bb4 axb4 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb3 f5 e4 c5 g4 h3 g5 h2 g6 f3 g7 f4 b7 f2 b6 f3 Ra4 c4+ Ka2 b3+ Ka3 h4 Qe2 h3 Qd3 c3 Qd1 c2 Bc4 f1Q Nc3 b2 Ba2 c1B Nge2 f2 Ng3 Nf6 g8R Nbd7 b8N Ng4 b7 Qh4 Na6 Ra7 b8R Rc7 Nc5 Ba6 Re8 Qg1 Rb4 f1Q Ka4 b1R Re7 Nde5 Rc4 Rcb7 Re6+ Kc7 d6+ Kb6 d5 Qf3 Rd4 Ng6 e5 Bg5 Rf4 Rc7 d7+ Bd6 d8R Rh5 Qd4 Nh8 Nge4 Rhh7 Qd1 Rhg7 Rd7 Rg6 Rh7 Qge3 Rg1 h1Q Rg2 h2 Rd2 Qeg1 Rd4 Qhg2 Ree8 Bf8 d6 Bfe7 d7 Bd8 e6 Rg7 e7 Q2h1 Nd6 Qa8 Nde4 Qf3 Nd5+ Kc6 Nd2 Kd6 Nde4+ Ke5 Ref8 Qgf2 R8f6 Q2e3 Ne6 Qef2 e8Q Qg1 Qg6 Qge3 Rd2 Qb6 N6c5 Qba7 Nd3+ Kd4 Re6 Bdf6 d8R Be7 Ndc3+ Ke3 Ndc5 Bef6 R8d6 Bd8 Qh5 Rg6 R2d4 Rgg7 Nd2+ Kf2 Qg6 Rge7 Nd5 Re8 Ref6 Re1 Rfe6 Rg1 Nde4+
bb2R3/b4bpn/4QB2/1nN2N1Q/1Q2bN1Q/k4RQ1/1b1rr3/nqQ2K2 b - - 0 1 illegal: No possible last move
NKQ1n1B1/1Q2n3/N1r1B3/3brqr1/r6p/2r2n2/1RQ2b1B/Q1Q1Qkn1 b - - 0 1 illegal: No possible last move, all moves rejected
4Q3/4qn2/3RQ1nq/N2bbQN1/N1Nnrr2/K1p3B1/3rB2N/2nr1Nk1 b - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 d4 Ke7 Kd2 Kf6 Kc3 Kf5 Kb3 Ke4 h4 f5 d6 a5 d7 g5 d5 c5 d6 f4 h5 f3 b6 f2 b7 a4+ Ka3 c4 h6 c3 h7 g4 b5 Qe8 d8Q Nh6 b6 Be6 Qd7 Nf7 Nd2+ Ke3 Rh6 Qe7 Qc2 Nc6 b8Q Nce5 b7 Ng6 Qbe8 Bg7 b8N Be5 Na6 Rd8 Nc5 Bd5 Ngf3 g1Q Qcf5 g2 Nh2 g3 Qde6 Qh1 d7 Rf8 h8N g1R Bh3 f1R Bg4 Rf4 Ndf1+ Kf2 e4 Rg2 Be2 Kg1 Bd2 Rh4 Bc1 Rf2 Bf4 g2 Bg3 Rg4 Bb5 Rd2 Be2 Bc7 e5 Re4 Qc6 Bd6 e6 Be5 Qb6 Rb8 Qa6 Rb1 d8N Rc1 Nc6 Rcd1 Ng4 Qh5 Ngh2 Qhh4 Na5 Qhf6 Qc4 Qh4 Kb4 a3 Ka4 a2 Ka3 a1N Qa6 Qd6 e7 Nb3 Qac6 Qc7 Na4 Nc1 Qce6 Qa7 Q8c6 Qa6 e8N Qe7+ Nd6 Qb6 Qe8 Qe3 Rh4 Qh6 Rh3 Kh1 Rh5 g1N Rh4 Nf3 Rh5 Qa7 Ndc4 Nd4 Rh4 Kg1 Rh3 Nd6 Nf7 Qe7 Ng5 Rf7 Qg4 Rff4 Qgf5 Qhg7 Rh7 Qh8 Rf7 Qh6 Rf6 Nf7+ Qd6 Qe6 Qde7 Qd7 Rd6 Qa7 Qef6 Qe7 Q6e6
1Qr1b1RK/1n3Q2/r3b1Q1/2p1B1B1/1pQQ1Nb1/RB6/1nb1kq2/4n1bQ b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 e5 h4 gxh4 c5 d6 Nc3 Bh6 Nb5 Bg7 cxd6 Bh6 d5 Bf8 Nd4 exd4 Kd2 Kf7 Kd3 Kf6 Ke4 h5 a4 c5 g4 b5 f4 d3 d7 h3 a5 b3 a6 h4 g5+ Kg7 Ke5 b2 f6+ Kg6 d6 b1B f7 d2 a7 b4 Qb3 Kh5 f5 Kg4 f6 d1N g6 h2 g7 h3 Ra3 Bc2 Bf4 Nh6 g8Q+ Bg7 f8Q Nf5 Nf3 Qb6 d8Q Nd4 d7 Nb2 Ne1 Qa6 Bg2 Qf1 Qff7 Qf2 Rg1 h1B Nd3 h2 Qbc4 Nf3+ Ke6 Ne1 Bd5+ Bg2 Qh7 h1B Be5+ Qd4 Qhg8 Nc6 Qh7 Na5 Qhg6+ Kh3 Kf5 Bf3 Kg5 Re8 Rg4 Bh8 Kh6 Qf2 Kh7 Nb7 Rg1 Re6 Rg2 Rb8 a8Q Bg4 Kg8 Bg7 Kh7 Bh6 Kh8 Ra6 Be6 Bf4 Rg1 Bc6 Bd5 B6a4 Be6 Nd6 Qh1+ Bh2 Bd5 Bb7 Be6 Bd5 Rg2 Rba8 Qb8 Bb5 d8B Nb7 Qd7 Bba4 f7 Bac6 f8Q B6a4 Qdf7 Be8 Qbd6 Rb8 Bg5 Rc8 Bd7 Bde6 Qdd4 Rc7 Ba4 Rc8 Qf1 Bg1 Bb3 Nf3 Qd1 Ne1 Rg3+ Kh2 Qfd6 Kh1 Qb8 Kh2 Rf3+ Kg2 Rg3+ Kf1 Qdf3 Na5 Qh1 Ke2 Bh6 Bgf5 Qgh7 Bb5+ Rg8 Bg4 Qhg6 Nb7 Bg5 Be8 Nf4#
2bK1bN1/k2nRq2/r1NpRn2/1q1r4/3R4/4pq2/QR2RRnQ/qB3Q2 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Ke2 a5 Kd3 e5 Ke4 d6 Kd5 Kd7 h4 Kc7 c4 Kb7 b4 a4 c5 g4 b6 a3 b5 g3 g7 f3 h5 f2 f6 a2 h6 d3 f7 e4 h7 d2 Rh6 g2 Bd3 f1Q Re6 e3 Nc3 Qe1 Ne4 Qg3 Bb1 Ra4 c6+ Ka8 c7 Rb4 b7+ Ka7 b6+ Ka6 Qf1+ Rc4 Nf3 g1Q Ne5 d1N Nc6 Nb2 Nf6 Nh6 g8Q Bd7 c8R Ng4 Rc7 Bc8 Rce7 Nd7 b8R Nd3 b7 Rb4 Ra8+ Kb6 Ra4 Qc7 b8R+ Qb7 Qf3 Rb2 Qf1 Q1f2 Rae4 Ka6 Rd4 Qb6 Rb7 Rd2 Rb8 Qa5+ Rb5 Qb6 Rb2 Rd1 Re2 Ne1 Rb2+ Kb7 Re2 Ng2 Rb2 Bh6 f8R Qff4 Qf7 Qh3 Ng8 Qhf3+ Be4 Rd3 Re1 a1Q Ree2 Ra3 Nb8 Ra6 Nc6 Qh3 Bb1 Qhf3+ Ree4 Qb5+ Ke6 Qg5 Re5 Qh5 Ree4 Qg3 Q7f2 Qf3 Rf6 Qhf5+ Kf7 Bf8 Ke8 Qe6 Kd8 Qf7 Rf5 Nf6 R4e6 Nh4 Qh2 Ng2 Rff4 Q3h5 Rff2 Qf3 Nh6 Rg8 h8Q Rg5 Ng8 Rd5 Q8h7 Ka8 Qc2 Kb7 Qa4 Ka8 Qa2 Kb7 Ne5 Ka7 Nc6+
3rNnr1/3N1Qr1/pb1K1R2/2n5/N5N1/Qn1QN1Bk/p1q1N2q/3bn2B b - - 0 1 legal: proof: f4 b5 b4 f5 c4 h5 g4 g5 a4 d5 cxd5 bxa4 e4 Rh6 Ra3 Rh7 Rg3 Rh8 exf5 gxf4 g5 Be6 Rg2 Bc8 Rg4 hxg4 Ke2 Kf7 Kd3 c5 Ke4 e5 d4 c4 h4 a6 f6 Kg6 h5+ Kh7 g6+ Kh6 f7 Kg5 h6 g3 d6 g2 Kd5 e4 b5 a3 g7 c3 h7 a2 d7 e3 b6 f3 b7 Kg4 Qa4 e2 Qa3 e1N Ne2 g1Q Rh6 c2 Nd2 f2 Bg2 f1N Nc4 Bc5 f8Q Qe7 d8N Bd6 Ne3+ Kg5 Bh1 Qg3 Qf7 Bg4 Rf6 Kh4 Ne6 Nd7 b8N Kh3 Nc5 Nf8 Na4 Nd2 Nd7 Qh2 Kc6 Qd8 d5 Bc7 d6 Nb3 Bb2 Rc8 Be5 c1R+ Kd5 Ra8 Bg3 Bb6 Ke5 Qc7 Kd5 Nh6 g8N Nf5 Nh6 Rg8 h8N Nfd4 Ke5 Bf3 Nhg4 Qc2 Qc4 Qc3 Nb8 Ra7 d7 Qg1 d8Q Nde6+ Nd4 Rd7 Nf7 Nec5 Nd6 Rd1 Ne8 Rdg7 Qf7 Qc2 Qdd7 Rd3 Qb5 Bd1 Ne2 Rd4 Qd3 Rd8 Nd7 Qh2 Kd6
1nnK2R1/2nbnQ1p/1pQNQ2r/n2q1Q2/3QBn2/r5qQ/3B1B1k/2N5 b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 a5 b4 axb4 a4 e5 f4 gxf4 h4 Bf5 g5 Bc8 Ra3 Bh6 g6 e4 Rf3 Bg5 hxg5 exf3 Kf2 Ke7 e4 Kd6 d4 c5 e5+ Kd7 g7 f5 d6 Ke6 a5 b6 g6 c4 d7 c3 a6 c2 a7 b3 Na3 b2 Nc4 b1N Ne2 Ne7 Bd2 c1N Rg1 Nb3 Qc2 Re8 Nd6 Nc3 Nc1 Ne2 Bg2 Na5 Bh1 Qc7 d8Q Bd7 Rg4 Kd5 e6 Nc8 g8Q Rf8 g7 Rf6 Qc3 Rh6 Qgf8 Qc4 g8Q Qd3 Ne8 Ke4 d5 Qc4 d6 Qd5 Qa3 Ke5 e7 Ke4 Rg5 Ke5 Ke1 f2+ Kd1 f1Q+ Kc2 f3 Qgf7 f2 Be4 Qg2 Rg8 f1N Qh3 Nf4 Kc3 Ne3 Kb4 Ba4 d7 Qg3 Nd6 Bc6 Qc7 Bb5 d8B Bd7 e8Q+ Qe6 Bc6 Ned5+ Kb5 Nde7 Kb4 Qa2 Be4 Qd5 Qc4 Nh5 Rh8 f4 Rg8 f3 Qc6 f2 Qff5+ Kd4 Qf8f7 f1N Q7e6 Ne3 Q8f7 Nf4 Ka4 Neg6 Bh4 Nge7 Kb4 Qa2 Kb5 N3d5 Bb4 Ke3 Be1 Be8 Bd2+ Kf2 Qcd7 Nbc6 Qd8 Kg1 Ka6 Bd7 Kb5 Rb8 a8Q Rb7 Ka6 Ra7+ Kb5 Nb8+ Qc6 Neg6 Qdf6 Nge7 Qd4+ Ne3 Qhg4 Kh2 Qf3 N3d5 Qfd3 Qg2 Bf2 Qa3 Qf1 Qag3 Qfd3 Nc4 Q3c3 Ra3 Qf3 Na5 Q3g4 Kh1 Qh3+ Qh2 Bb1 Be8 Qcd7 Qe4 Qb3 Qh4 Bd3 Qe5 Be4+ Kh2 Qf3 Qg3 Q3g4 Nbc6 Qc7 Bd7 Ka6 Nb3+ Kb7 Nb8 Qcc4 Nc3 Kc7 Ncd5+ Kd8 Na5 Qb5 Nc7 Qc6 Qd5 Qh3+
5K2/1BqN3r/N1Np1Rb1/Q1n3nN/3krNBq/2p1p1Q1/2br3n/B5N1 b - - 0 1 legal: proof: e4 e5 b4 g5 d4 f5 h4 gxh4 c4 b6 c5 Na6 a3 Nb8 b5 Be7 Ra2 Bd6 Re2 Be7 cxb6 exd4 e5 Bd6 Re4 Bb4+ axb4 fxe4 Ke2 Ke7 g4 Ke6 f4 Kd5 f5 c5 g5 a5 f6 h5 b7 d3+ Ke3 h3 Kf4 h4 Kf5 c4 Kg6 e3 Kg7 d2 f7 a4 f8N a3 g6 a2 b6 a1R b5 h2 e6 h3 e7 R1a4 e8N R4a7 Bg2+ Ke5 Qe1 d1N Nf6 Rh4 Nc3 Kd4 Nh5 Nh6 Nd5 Re4 Qa5 c3 Ndf4 Nf2 Bb2 Nfg4 Ba1 Na6 b8N Qc7 b7 Nc5 b6 Nf7 Na6 Ng5 b8Q d6+ Nd7 Bb7 Qg8 Bd5 b7 Bb3 b8N Bc2 Kf8 Rb7 g7 Rb2 Qb3 Ra7 g8B Qd8+ Kg7 Nge6+ Kf7 Re5 Ng6 Bd3 Qd1 Re2 Qe1 Bc2 Qg3 Rd2 Bd5 Rc7 Bb7 Ng5+ Kg7 Re4 Be6 Nf7 Ndf8 Ng5+ Kg8 Rh7 Bd7 Qc7 Ne2+ Kd3 Rc1 h1Q Rf1 h2 Ng1 Kd4 Be6 Qf3 Nfd7 Qf4 Qh3 Qg3 Rf6 Qh4 Ngf4 h1B Ne5 Nh2 Ned7 Re5 Kf8 Bhe4 Qg3 Bg6 Bg4 Re4 Nc6+
5N1N/B1p1BK2/B2Q4/2RB4/2q1rnB1/Q1B2kp1/Q2q1bqp/nr2b1r1 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 a4 dxc4 axb5 f5 d5 fxg4 b4 g5 h3 g3 Rh2 g4 Rh1 g2 Ra2 g3 Rd2 Bf5 Rd4 Bg4 hxg4 exd4 Kd2 Kd7 f4 Kd6 e4 h5 f5 Ke5 d6 Kf4 f6 a5 b6 d3 Kc3+ d2 Kd4 c3 Kd5 a4 Ke6 a3 g5 h4 g6 a2 e5 a1Q d7 h3 f7 h2 g7 c2 b5 Rh5 b7 Qc3 b6 Qc8 Ba6 Rg5 Nh3+ Ke3 Bb2 g1R Nf4 c1B Na3 Be7 f8Q Rg4 Nb5 Re1 Kf7 Bh4 d8B Ra7 e6 Qc4 Nd6 Rg1 Bc3 Be7 Ng6 Nf6 g8B Nbd7 b8B Bb2 b7 Nd5 Qa1 d1Q Qa2 Bf6 e7 Bd4 e8B Kf3 Be7 Nc5 Bd7 Re4 Bh3 Ra8 Ba7 Nb3 b8Q Bf2 Qb4 Na1 Qba3 Qd2 Be6 Rb1 Rc1 Qb7 Qh6 Re8 Nf8 Nf4 Bd5 Qa8 Bh7 Rd8 Bf5 Rb8 Rc2 Rg1 Bh3 Bc1 Qg6 Rb1 Bg4+ Kg2 Kf6 Bb2 Nf7 Be1 Nh8 Qac6+ Bge6 Kf3 Kf7 Bc1 Bd7 Qb7 Qf6 Qb2 Qc6 Qg2 Qcd6 Be3 Rc1 Qbd2 Bg4+ Kf2 Qc2 Qb5 Ba5 Bd4 Qca2 Qbf1 Rc5 Qc4 Bc3 Be3 Bd7 Kf3 B7e6 B3f2 Bg4+
2kbK1Q1/r5Qr/QbBQ3N/1p2p3/R2N1Q1r/bRn5/p6q/1n1Qb2N b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 a4 b5 b4 bxa4 b5 Nf6 b6 Ng8 c4 d6 b7 Na6 d3 Be6 Be3 Nb8 Bb6 cxb6 c5 Bc4 dxc4 Qd7 Bd3 Qc8 Bf1 Qd8 Kd2 Kd7 Ke3 g5 Ke4 a5 Kd5 e5 h4 g3 f4 b5 c6+ Kc7 Ke6 a3 Kf7 g2 h5 g4 f6 a2 f5 d5 h6 g3 h7 a4 c5 a3 Nf3 g1B Bg2 d4 Nbd2 d3 Rh3 Na6 Nf1 d2 Nd4 Qc8 b8Q+ Kd8 c7+ Kd7 Bb7 g2 Ng3 Nb4 Nh1 Ne7 Rb3 Ra7 Bf3 Nc2 c6+ Kd6 Qb6 Nd5 Qa5 Nc3 Be4 Qb7 Ke8 Bf2 c8Q g1B c7 Be1 f7 Be7+ f8Q Qb8 Qh5 d1R f6 Rd2 f7 Rh2 Qg4 Rh4 Qd1 Qa8 Qg8 Bd8 Qb7 Qc8 Bc6 Qh3 c8Q Qh2 Qcg4 Bgf2 Rc1 a1B Qf4 a2 Qba6 Bb2 f8Q+ Be7 Qgg7 Na3 Qfg8 Bd8 Rb1 Bc1 Rb4 Bg1 R1b3 Nab1 Ra4 Ba3 Q5b6 Rf7 Qc5+ Kc7 Qa5+ Kc8 Qd6 Ra7 Q8f8 Rg8 h8N Rh7 Nf7 Rgh8 Qfg8 Rh4 Nh6 Rh7 Nf3 Bgc5 Nd4 Bcb6 Qa6+
1Q1nn2N/2NnNb2/K1kpb1r1/5RNn/pq1p4/1Q6/Q1N3N1/2rB2rR b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 Kd3 a5 Kc4 a4 h4 d6 e4 Kd7 b4 g4 e5 g5 h5 g3 b6 g4 Kb5 g2 c4 g3 e6+ Ke7 c5 Qd7+ c6 Qa7 c7 Nd7 b7 Rb8 h6 Ngf6 h7 Qa8 f5 Ke8 e7 Ne5 Qd2 Kd7 e8N Rf8 h8N Nc6 Be2 f1N Bd1 f2 Na3 Rf7 Ne2 g1R Nc2 g2 Nf4 Ng3 Ra3 Qa7 Rf3 Qc5+ Ka6 f1B+ b5 Qb4 Qe2 Rg7 b6 Ngh5 Qc4 Ng8 f6 Nd8 f7 Ngf6 Rf2 Rg6 f8N+ Ke7 N8e6 Kd7 Qe2 Kc6 Ng5 Be6 c8N Bf7 Nc7 Ne8 Nd3 Be6 Rf5 Bf7 Qe6 Be2 Qa2 Bg4 Nf4 Bh3 Be2 Rc1 Bg4 g1N Bd1 Nf3 Ng2 Ne5 Ne7+ Kd7 Rf3 Bhe6 Rf5 Rc8 b8Q Ra1 Ned5 Kc6 b7 Rb1 Qa7 Nd7 b8Q Qa3 Qbb3 Qb4 Be2 Rg1 Bf3 Rb8 Bd1 Rb5 Qb8 Rc5 Na1 Rc1 Nc2 Qe1 Q8b4 Qc3 Qb8 Qb4 Ne7#
1Q1qN3/K2p4/nB3B2/2n5/1N2qB2/4BBnb/1bp2Rp1/QN1nrBkr b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 b4 hxg4 d4 c5 Ra3 cxd4 c4 Nf6 Re3 Ng8 Rc3 dxc3 Ke2 Kf7 Kd3 Kf6 Kd4 g5 Kc5 Ke5 h4 Ke4 f4 a5 h5 a4 b6 c2 b5 a3 f6 g3 h6 a2 b7 a1N b6 g2 f5 g4 f7 g3 h7 Ra3 f6 Bg7 f8B e5 f7 Ra2 Rh2 Nf6 Nh3 g1Q+ Be3 Qg2 Nf4 Nh5 Nd5 Na6+ Kb5 Rb2+ Nb4 Nb3 b8Q Bb7 c5 Ra2 c6 Ra1 c7 Nbc5 Qd4+ Kf3 c8B e4 Bd6 Bd5 f8N Be6 b7 Bh3 Bc7 Qh1 Kb6 g2 Ne6 Ng3 Ka7 Re8 h8B Qg1 Bef4 e3 Rh1 e2 Be3 e1N Bb6 Ned3 Nc7 Nb2 Qe5 Re6 Ne8 Nd1 Qb2 Bd4 Bf6 Qf2 Qa3 Bb2 Qc3 Qe2 Qe1 Bf5 Rh8 Qc4 Rf8 Qe4 Qc3 Ra5 Qa3 Bh3 Qa1 Ra4 Qa8 Ra5 b8B Rb5 Bbf4 Re5 Bc1 Kf2 Qb8 Kg1 Bb7 Ra5 Bc6 Rh5 Ba8 Ra3 Rf7 Re3 Bd2 Re1 Bc1 Qc4 Bf3 Qe4 Bce3+ Nf2 B4e5 Nb7 Bg7 Be6 Bg4 Rh1 Rf4 Nbc5 Bgf6 Bf5 Rf3 Be6 B5f4 Bf5 Bh5 Bh3 Bg4 Kh2 Bh5 Nd1 Rf2 Kg1 Bf3
3b1K2/nb2B1p1/1n1n4/1k1N2np/1pB1B1N1/1q2rNN1/2Q1NRn1/2b2QN1 b - - 0 1 illegal: No possible last move, all moves rejected
R1n1R3/RRQpbp2/rN2Bpq1/b2nrR2/5p1Q/2b5/k4KQ1/1b3N1R b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 h6 g4 b4 g5 hxg5 a3 Qb6 axb4 Qc7 b5 Qd8 Bd2 gxf4 Bc3 Bb7 Be5 Bc8 Bf6 exf6 e4 Ke7 h4 Ke6 b4 a5 c4 g5 e5 g4 h5 a4 h6 g3 b6 g2 b7 a3 b5 a2 b6 Bg7 h7 Qe8 c6 Qd8 c7 Qe7 c5 Bh6 c6 Qe8 Qd2 Ra4 Nf3 g1B Nh2 Ra5 Qg2 Qf8 Na3 Ne7 Nc4 Na6 b8R Qg8 b7 Bb6 Ra8 Nb4 b8R Nbd5 Rb7 Bf8 Raa7 Rc5 Kf2 Ba5 Nb6 Qg6 Bc4 Rb5 Rab1 a1B Nf1 B1c3 Ba2 Rg8 h8Q Rc5 Qh4 Rh8 Rb8 Bb7 Rb5 Nc8 Bc4 Ba8 Rbb7 Be7 Bb3 Re8 Ba2 Rc4 Rc5 Ra4 Bb3 Kf5 e6 Ke5 Bc4 Kd4 Rb5 Nb4 Rf5 Nd5 Ba2 Kc5 Bb3 Kb4 Ba2 Nd6 c8R Ka3 c7 Kb2 Rcb8 Ka1 c8Q Kb2 Qc7 Nc8 Bb3 Kb1 Bd1 Ka2 Bg4 Ra3 Ra6 Ra4 Rba7 Bc6 Rbb7 Bb5 Ra8 Bd3 R6a7 Bb1 Bh3 Bab4 Bg4 Ra6 Bh3 Ba5 Bg4 Rh8 Bh3 Rh5 Bg4 Bf8 e7 Rg5 e8R Be7 Re5 Rh5 Be6 Rg5 Re3 Re5 Rg3 Qf5 Rg5 Qg6 Rf5
4r1q1/3b1nRp/pbrQ3Q/1k2q3/4BN1R/3R2Kp/1pRB4/bRBr3R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 b4 f5 exf5 g5 Ra2 gxh4 Ra3 Bh6 Ra1 Bf8 d4 Bh6 c4 Na6 b5 Bf8 d5 Nh6 Na3 Nb8 Nc2 Nc6 dxc6 Ng8 Nb4 cxb4 c5 Qc7 Rh3 Qa5 Rh1 Qd8 f4 d5 Kf2 e5 g4 d4 g5 d3 f6 e4 c7 Kd7 c6+ Kd6 g6 Kc5 g7 d2 b6 a3 f7 a2 f5 h3 b7 b3 b8B b2 f6 e3+ Kg3 a6 Bd3 e2 Be4 e1R Ne2 Qe8 Rb1 a1B Nf4 Be6 c8R Re2 c7 Kb5 Rd8 Nh6 c8R Bd7 g8R Bc5 f8R Bb6 f7 Re1 Rg7 Qe5 Rc2 Ra7 Rfe8 Rc7 f8Q Rc6 Re6 Nf7 Rh6 Rf1 Rh4 Rg8 Qd6 Re8 Qh5 d1Q Qhh6 Qdd5 Ba7 Rd1 Bd2 Bc7 Bae3 Bb6 Bc1 Ng5 Bed2 Qg8 Qb8 Nf7 Qc7 Bf5 Rd3 Bd7 Qcd6
q2nbB1r/1q3NBn/1nqn1k1B/2Nr4/1rRR1B1r/1b1K4/2B1R3/1B3B2 b - - 0 1 illegal: No possible last move
1K1NBbR1/2BpB1nr/8/1kq3nB/Br1q1B1n/3p1B1N/p2N3q/q4R2 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Qd3 Bh6 Qf3 gxf3 g4 Bb7 h3 Be4 g5 Bf8 Ra2 Bf5 Ra1 Bg4 hxg4 Qf6 Rh2 Qe7 Rh1 Qd8 Kf2 h5 b4 a5 c4 f5 e4 a4 e5 a3 g6 a2 e6 d3 g7 h4 g5 h3 g6 h2 e7 Ra6 c5 Rf6 c6 Nh6 g8N Qc8 b6 Na6 b5 Qd8 b7 Qb8 b6 Qd8 b8B Qc8 g7 Rh7 b7 Nc5 c7 Rb6 Ba3 Nf7 Be2 Rb4 Nh3 Ne6 Nd2 Nfg5 Rhg1 h1Q Raf1 Qh2+ Rg2 Kf7 Nh6+ Ke8 g8B Ng7 Ke1 f2+ Kd1 f3 Nf7 f4 Nd8 Rh8 Bb3 Rh5 Ba4 Rh7 Nc6 Kf7 e8B+ Ke6 Nd8+ Kd6 Kc1 Kc5 Rgg1 Kb6 Bed1 Re4 Kb2 Rb4+ Kc3 Ka5 Ba7 Ka6 b8B Ka5 Bb6+ Ka6 Re1 f1Q Rg3 f2 Bdh5 Qfg1 Rf1 f3 Be3 Rb6 Kc4 Rb4+ Kd5 Ka5 Bf4 Kb6 Rd1 f1Q Rg2 Qff2 Rf1 Qe1 Rg4 f2 Rg3 Qa1 Rg2 Qa6 c8B Qa7 Bb7 Ka5 Bbc7+ Qb6 Rb1 f1N Bbc6 Ng3 Rf1 N3f5 Rg4 Re4 Be7 Nh4 Kd6 Rb4 Rg2 Ka6 Rg3 Qb5 Bcf3 Qf5 Bb6 Qa5 Kc7 Qac5+ Kb8 Qgf2 Bad1 Kb5 Bbc7 Qfd4 Bb3 N5e6 Rg6 Ng5 Bbd1 Ngf5 Rg8 Ng7 Ba4+
1qB5/p2bRR2/bbB1R3/2b1NRB1/3n1n2/BQ3Q2/2r2knK/1b1r3R b - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 c4 f5 exf5 g5 cxd5 gxh4 a4 bxa4 Na3 c4 Nxc4 a3 b5 Bb7 Nb6 Ba6 Nc8 Bxc8 g4 Kd7 d4 Kd6 f4 e5 Kf2 h5 Kg2 e4 b6 a2 b7 h3+ Kh2 e3 g5 e2 f6 e1B f5 h4 g6 Ne7 f7 Ba5 g7 Ng6 g8B Bd7 f6 Nc6 Bg2 Rc8 Nf3 Nf4 Ne5 Bb6 b8Q+ Rc7 Rb1 a1N Qf3 Nc2 Bb2 Rh7 Rbe1 Ne3 Bc1 Be7 f8R Rf7 Qb7 Qb8 Bh7 Rg7 Rf7 Rg8 Bf5 Rd8 Rg7 Rcc8 f7 Rc7 f8R Rcc8 Bf1 Neg2 Bg4 Rc7 Rf5 Bf8 Rgf7 Be7 Kg1 Rcc8 Bb5 h2+ Kf2 h3 Kg3 Nb4 Qb3 Nc2 Ba3+ Rc5 Bc6 Bf8 Rhg1 h1B Re7 h2 Rff7 Be8 Bc8 Bd7 Rgf1 Nh4 Re3 Be4 Rh1 Nhg2 Qa8 Bd3 Rf3 Ba6 Qb7 Ne6 R3f5 Nef4 Qf3 Ba5 Qbb3 Bb6 Rf1 h1B Kh2 Nh4 Ra1 Bg2 Rg1 Bgf1 Rh1 Nhg2 Qb1 Bfd3 Qbd1 Nb4 Qb3 Bb1 Re6+ Kc7 Ree7 Rc2 Re6 Bfc5 Ree7 Ba5 d6+ Kb6 d5 Re8 Bb5 Nc6 Re6 Nd4 Bc6+ Bcb4 Rfe7 Kc5 Rff7 Rd8 Rf5 Be8 d7 Bb6 d6 Nde2 Rg7 Kd4 Rgf7 B4c5 B8b7 Rc8 d8B Bd7 Bg5 Rd8 Bc8 Rc3 Qfd5+ Ke3 Ree7 Nd4 Re6 Be8 d7 Kf2 Qe4 Rc2 Rfe7 Bg6 Rff7 Bf5 Qed3 Rg8 d8R Rf8 Rdd6 Rd8 Ref6 Be6 Rf5 Bd7 Rde6 Nb5 Rd6 Be8 Rde6 Rd7 Qdc3 Rd1 Qa2 Bd7 Qab3 Nd4 Qf3+
b2b1n2/qk1b2NQ/2r2Q2/1R2rQN1/1N5K/1r1B2n1/pQ1p3N/N5rR b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b5 a4 bxa4 b5 a3 Bxa3 a4 Bd6 a3 Bc7 Na6 Bb8 Nxb8 f4 e5 Kf2 g5 Kg3 d5 h4 Kd7 c4 Kc7 c5 g4 c6 e4 h6 d3 h5 d2 f6 a2 f5 d4 h7 e3 b6+ Kd6 h6 e2 f7 e1R f6 d3 c7 Kc6 b7 Ne7 Kh4 g3 Qc2+ Kb6 Na3 d1B Nf3 d2 Bd3 g2 Rb1+ Ka7 Rb5 g1R Nh2 Bf3 Qb2 Bd1 Nc2 Qd5 Na1 Nd7 b8N Qb7 Na6 Bf3 Nb4 Rhg8 h8N R8g6 h7 Re5 Rb6 Bg7 f8Q Rb8 f7 Rc6 Rb5 Qb6 Qg8 Kb7 f8N Bf6+ Qg5 Bg2 Ne6 Nf8 Ng7 Bd7 Nf7 Bf3 h8Q Nf5+ Kh3 Bd8 Qf6 Bd5 Ng5 Ng3+ Kh4 Bg2 Qh7 Bf3 Rd5 Qa7 c8Q+ Ka8 Qc7 Rbb6 Qcd6 Kb7 Qff5 Bg2 Qdf6 Be4 Nbc2 Rb3 Nb4 Rb6 Nh3 Kc8 Rb5 Ba8 Qf3 Rc6 Qff5 Kc7 Ng5 Kc8 Rd5 Kb7 Rb5+
r2nr3/p4Bp1/7B/RrQb3K/2B5/NQQ2n2/qn1Q1B1k/RQ2r1b1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 bxa4 g4 h5 gxh5 e5 c4 d5 cxd5 exf4 Na3 c4 Nxc4 a3 b5 Bh3 Nb6 Bf5 Nc8 Bxc8 Kf2 Kd7 Kf3 Kd6 d4 f5 h4 a2 e4 Qg5 h6 Be7 h7 Bf6 b6 Be6 h5 Bf7 e5+ Kd7 e6+ Kd6 e7 Bg6 e8B Na6 h6 Rc8 b7 Nc5 Ne2 Ne7 Bf7 Rhe8 h8Q Ra8 h7 Nc6 Qb3 Nd8 Nc3 Nd3 Nb1 Nb2 Rh5 Qh4 Be3 Qh2 Bc4 Bh4 Qg8 Bf2 h8Q Bg1 Qc3 Qd2 Bf2 Bh7 Kg2 f3+ Kg3 f4+ Kh4 Be4 Na3 Qe2 Re5 Qc2 Qh5 Qb3 Rb1 a1R Qg5 Qa2 Kh5 Rb8 Rd1 Rb1 Rf5 Ra8 b8Q+ Kd7 d6 Bd5 Qbb3 Kc6 d7 Kd6 Rf1 Rbe1 Qh7 R1e5 Be3 f2 Ra1 f1N Bf2 f3 Qgd2 Nh2 Rg5 Bb7 Qb1 Rb5 Rc5 Bd5 Qdc1 Rbb8 Ra5 Rb5 Qg5 Bb7 d5 Bc6 Bb6 f2 Be3 f1R Bf2 Rfe1 Qge3 Ne6 d8B Nf3 Bg5 Nd8 Bh6 Bb7 Qcd2 Bc6 Qc5+ Ke5 d6+ Bd5 d7 Ng5 Qdc3+ Kf4 Be3+ Kg3 Bd4+ Kh2 Bf2 Nc6 d8Q Nf3 Qg5 Nd8 Qgd2
QqbBb3/4B3/2bqR1B1/kN3p2/rq1N4/Nr1N1p2/3Q1B2/3r1qNK b - - 0 1 illegal: No possible last move
2N2BB1/b2Bnp1B/3p1p1Q/p3R3/1Q1r4/2Bb2K1/1Qnn2Q1/bN1qk3 b - - 0 1 legal: proof: a4 b5 axb5 h5 d4 c5 c4 a5 g4 Nh6 gxh5 Rh7 b6 Rh8 f4 Ra6 f5 Ng8 f6 exf6 Ra3 Rh6 b4 cxd4 b5 Rh8 Rc3 dxc3 bxa6 Rh6 Qd5 Rh7 Qd1 Rh8 Kf2 Ke7 h4 Ke6 e4 Ke5 b7 g5 a7 c2 a8Q g4 c5 d6 h6 Bg7 h7 Bf8 c6 Na6 b8Q Bb7 c7 Bd5 c8B Nh6 h5 Qd7 Qb4 Qc7 Bb2+ Kf4 e5+ Bc4 e6 c1N e7 Nb8 e8B Qe7 Qdb3 Rg8 h8B Nf5 h6 Ne3 h7 Nc6 Nf3 Bh6 Ne5 Nc2 Rh5 g3+ Kg2 Rg4 Bf5 Qc7 B1d3 Ke3 Bg7 Ne7 h8Q Rd4 Bf8 Bf4 Nd7 Be5 Nb6 Qa7 Bde4+ Ke2 Nc8 Bd3 Bh7 Qc7 Kh3 g2 Bd7 g1B Bg8 Kd1 Q3c3 Nb3 Qh6 Nd2 Beh7 Ke1 Qg2 Qb7 Qcb3 Qd5 Bc3 Bf2 Qb2 Qf3+ Qg3 Qd1 Qh2 Rf4 Kg2 Ba7 Kg3 Rd4+ Qf4 Bf1 Qc1 Na3 Qg2 Nc2 Bb2 Rc4 Ba1 Bb2 Qh6 Rd4 Rf5 Bd3 Rb5 Ba3 Bc3 Bb2 Rc5 Ba1 Qcb2 Rc4 Rd5 Rd4 Re5+
rBqn4/r1q4b/3B3B/BQ2r3/1bb1nN2/r2R1N1k/B1N1Q2b/3K1Nb1 b - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 Ke7 h4 Kf6 d4 a5 e5+ Kf5 h5 g5 d6 c5 h6 c4 e6 a4 d5 g4 h7 a3 d7 c3 b6 c2 b7 a2 e7 a1R e8N Nf6 d6 Ne4 b5 R1a3 b6 R8a7 Rh3 Qc7 d8B Nc6 d7 Bb4+ Nd2 f6 Nf3 g1R b8Q g2 b7 g3 Nd6+ Kg4 Nb5 f5 Ke2 f4 Be7 Nd8 Nbd4 Re8 Bc5 Re5 h8N Rh1 Bd6 g1B Qe1 g2 Ng6 Bh2 Qf2 g1B Qe3 Nf7 d8B Bf5 Ke1 Qc8 Ba5 Nd8 Bc4 Ra8 Qe2 Qc7 Ng5+ f3 Nf4 Bh7 Ba2 Qc8 Qc7 Ra7 b8B Ra8 Qb5 f2+ Ke2 Ra7 Qe7 f1B+ Ke1 Bc4 Rd3 Qc7 Ngf3 Kg3 Ke2 Kg4 Nf1 Ra8 Nd5 Kh3 Bh6 c1Q Nc2 Qc8 Qee8 Qf4 Qe7 Qf7 Qee8 Qfc7 Nf4+ Kg4 Qg6+ Rg5 N1d2 Be3 Bb3 Ra2 Bb6 R2a7 Ba5 Ra1 Nf1 Ra3 Ba2 Bb6 Kd1 Bbg1 N3d2 Kh4 Qg8 Rh5 Qg2 Re5 Qf2+ Kg4 Qe2+ Kh4 Nf3+ Kg4 Ng6 Kh3 Nf4+
1QNrn3/Kb3NrR/7b/Q1n1B1qn/QR3n1q/p7/R5Rb/1R1knQ2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 b4 Kd7 h4 Kd6 d4 c5 Kd2 g5 Kd3 a5 Kc4 f5 e4 a4 b6 g4 Kb5 a3 e5+ Kd7 b7 c4 e6+ Kd6 e7 f4 e8Q c3 h5 f3 h6 c2 h7 f2 Rh3 f1N Nd2 Nf6 Ne4+ Kc7 Nf3 g1Q Ne5 g2 Nf7 g3 Ra2 Qh1 Bb2 c1N Ned6 Na6 b8R Bb7 Nc8 Rg8 h8R g1N R8h7 g2 Rb3 Ng3 Qf1 Ngh5 Ka5 Ra7 Qa4 Nge2 b5 g1B d6+ Kd7+ b6+ Ke6 d7 Kd5 Bc3 Ke4 d5+ Kd3 d6 Qh4 Rb4 Ke3 Be5 Ne8 Kb5 Qdf6 d8R Qfg5 d7 Bh2 Rb3+ Nd3 Ka5 Bd5 b7 Bh6 Kb6 Nef4 Rb4 Ne1 Rg2 Nef6 Rf8 Bc6 d8Q Nc5 Ra2 Rg7 Rg8 Ne8 Qc7 Ra5 Qd8 Rb5+ Ka7 Bd5 Qda5 Rb6 Ra8 Rd6 b8Q Rd7+ Qbc7 Bf3 Rab8 Rd8 R8b5 Bb7 Qb8 Ng3 Ra1 Kd2 Ra2+ Kc1 Rb3 Kd1 R5b4 Ngh5 Bc3 Qf6 Be5 Rg1 Rgg2 Qf5 Rgf2 Rg7 Rg2 Qfg5 Rb1#
bR5Q/B1Q2rq1/R1nb3b/1rb3n1/1N1r2NQ/K2Np2Q/2qQ4/k2N2n1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 f4 g5 g4 gxf4 g5 h6 Be2 h5 Bg4 hxg4 b4 Kf7 h4 e5 d4 a5 Kd2 c5 Kc3 f3 Kb3 e3 b6 a4+ Ka2 c4 d6 Ke6 g6 Kd5 h5 e2 g7 e1B h6 c3 h7 Kc4 d5 e4 b5 c2 b7 a3 d7 f2 b6 f1R d6 g3 Be3 c1B Ne2 g2 Nbc3 g1N Nf4 Nh6 g8N Bg3 Nf6 Nf7 Qh5 Ra4 Qh3 Nc6 b8Q Bb7 Ng4 Ba8 b7 Qc7 d8Q Ng5 d7 Bc5 Nd3 Rf7 Nd1 Bgd6 Bf2 Re8 h8Q Re5 Q8h4 Qc8 Qbc7 Bf4 Bd4 e3 b8N Rb4 Qe8 Re4 d8Q Rb5 Na6 Qf5 Be5 Rd4 Qeh8 Qg6 Nab4 Qe4 Kb1 a2+ Kb2 Qg2+ Ka3 Qc2 N1f2 Kc3 Bg7 N1f3 Rhb1 Ng1 Be5 N5f3 Rb2 Bh6 Qdd7 Ng5 Nd1+ Kd2 Rab1 a1Q+ Ra2 Rd5 Bh2 Qg7 Be5 Rd4 Bf6 Rf4 Bd4 Rb7 Qf5 Re4 Qff2+ Ne2 Rb3 Bb6 Ka4 Rb8 Na6 Ref4 N3b2 Kc1 Qe1 Kb1 Qd2 Ng1 Nd3+ Qb2 Rb5 Re4 Nab4 Qc2+ Ka3 Ba7 Rb6 Ref4 Ra6 Rb7 Rb2+ Ka1 Bc5 Rb6 Na2 Rd4 Rb4 Rb5 Bb6 Rbd5 Bc5 Re5 Rb8 Bb6 Nab4 Ba7 Bb6 Rb5 Ba5 Bac5 Bb6 Bf4 Ba7 Be5 Rb7 Bed6 Rb8
1rr1r3/B5K1/Bq3Q2/2R2b2/k1B1RB2/p1N1bbb1/3nR1R1/2bQb1nR b - - 0 1 illegal: No possible last move
N1B1bR1Q/b1bQ2b1/n2QR3/5pr1/1q2Q1Rn/bk4r1/rR2Nb2/2K3Q1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 Ke7 d4 Kd6 Kd2 c5 h4 g5 b6 f5 b7 a5 h5 a4 h6 a3 h7 a2 b4 c4 b5 g2 b6 g3 Nc3 g4 Na4 c3+ Kc1 c2 Ba6 Bd7 Ne2 g1B Rh4 Bf2 Qg1 g2 Rb1 a1B Rb2 g3 Rg4 Be8 e5+ Ke7 d6+ Ke6 d7 Kd5 e6 Qh4 d8R+ Bd6 Rc8 Ne7 Rc6 Rg8 h8Q Ng6 e7 Bc7 Re6 Ra7 Bd3 Na6 b8Q Ra8 b7 Rg7 Be4+ Kc4 d5 Ba7 d6 Rg8 Qd1 g1B d7 g2 d8Q Bgf2 Q8d7 g1R Qf1 Rg2 Qg1 Rg3 Qbd8 Rg7 b8R Rg8 Qd6 Rg7 Q8d7 Rg8 Ra2 Bg7 Nb6+ Kb3 Bf3 Bd8 Bb7 Bc7 Rd4 Qe4 Bc8 Qb7 Rg4 Nh4 Kd2 c1B+ Kd1 Bh5 e8Q Ba3 Qee7 Be8 Rc2 Bb4 Kc1 Bbc5 Qf6 Qe4 Qfe5 Qb4 Rd2 Bf8 Qe4 Rg5 Bb7 Bg7 Rd8 Rc8 Na8 Rb8 Bc8 Rb5 Ra2 Ra5 Rc2 Ra2 Rd2 Bf7 Rf8 Be8 Re5 Qa5 Re6 Ba3+ Kb1 Qb4 Rc2 Rb2+ Kc1 Ra2+ Rb2+
1K1B2NB/RN3qp1/2kNq3/Bnq2Q2/1r3n2/2Bn2n1/Bq1brN2/2Qb4 b - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 e4 Kd7 Ke2 a5 Kd3 f5 Kc4 c5 d4 f4 h4 f3 d6 f2 Kd5 c4 e5 a4 b6 a3 h5 a2 e6+ Ke8 b7 a1N b5 c3 e7 Kd7 e8N c2 h6 Qc7 h7 Ra2 b6 Nc6 b8Q Ra4 b7 Nd8 Nd2 Qc3 Bc4 f1Q Ba2 Qb2 Nh3 g1Q Nf2 g2 Nc4 Rb4 Bd2 c1N Bc3 Nd3 Qc1 Ne6 Nf6+ Kd8 Kc6 Nh6 d7 Nf5 d5 Nb3 Qa7 Ng3 b8B Nef4 Bc7+ Ke7 d8N Bg4 Rh5 Bd1 Qa5 Qh1 Rh3 g1Q Nb7 Qe4 Ncd6 Qe6 Qb5 Rg8 Ba5 Nd4+ Kc7 Rh8 Qc5 Nb5+ Kb8 Rg8 Rh2 Rh8 Ng8+ Kd7 Rh4 Be7 Rh6 Bg5 Rf6 Qfg2 Rf8 Qf3 Rc8 Bh6 Rc6 Qh5 Ra6 Qhf7 Ra7 Bg5 Nf5 Bh6 d6 Bg5 Qe5 Kc6 d7 Bh6 d8B Bg5 Nh3 Qc5 Nfd6 Bh6 Qf5 Bg5 Nf6 Re8 h8B Nd5 Qe4 Qg4 Bd4 Bd2 Ng8 Qe2 Qh7 N5f4 Nf2 Qg4 Qh3 Re2 Bc3 Qge6 Qf5
1n1QBB1K/kr3qNB/r1r1R3/r3p1nB/q1b2B1Q/Q7/r2R1Qrn/8 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h4 Qb6 g4 Qd8 f5 Qc7 Nc3 Nc6 Nd5 Nb8 Nf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 h5 b4 a5 c4 e5 f6 d5 g7 Kd7 c5 Kc7 c6 Kb6 f7 f3 Kg3 e3 Kh4 a4 f8B d3 c7 f2 Qe1 e2 Nf3 d4 Rh2 a3 Bf4 Nh6 g8B a2 Bf7 d2 Be8 d3 Nd4 d1Q Ne6 d2 Ng7 Ba6 c8Q Qf6 Qc2 Qf7 g6 Rh7 Kg5 h4 Qc4 Kb7 b6 h3 b5 Qa4 Qec1 e1N Qa3 d1R Be2 f1R Bh5 Rd5 Rd2 h2 Qcc5 h1R Qf2 Rh2 Qh4 Qd7 Kf6 Nf3 Rc1 a1R Rc6 Rfe1 Re6 Nf7 Qf2 N7g5 Qh4 Kc8 b7+ Kc7 Qf2 Rg2 Qh4 Rd6 b6+ Kc6 Qf2 Bc4 Qh4 Ree2 Qf2 Na6 b8Q Nh2 Qd8 Nb8 b7 Ra5 Qh4 Kb5 Qf2 Ka6 Qh4 Nc6 b8Q Ref2 Qbb4 Nb8 Qc5 Rc6 Qd4 Re2 Qdf2 Qd5 Nf5 Rc7 g7 Rb7 g8B Qd7 Kg6 Qf7+ Kh6 Ra2 Bh7 Re3 Ng7 Ka7 Qfg3 Reb3 Qf2+ R3b6 Bg8 Nh3 Kh7 Ng5+ Kh8 Bb5 Qf1 Rba6 Bh7 Bc4 Qff2+
1r1rN1B1/kB2brN1/4p1nQ/4R3/q5b1/b2Qq3/N2B1B1q/BK2bqN1 b - - 0 1 legal: proof: f4 c5 e4 f5 d4 cxd4 g4 fxe4 a4 h5 b4 b5 axb5 Nc6 f5 Ne5 g5 Ng4 Ra6 Rb8 Rg6 N4f6 gxf6 Ra8 Rg4 hxg4 Kd2 g5 c4 a5 Kc2 d5 h4 Kd7 c5 Kc7 c6 Kb6 h5 a4 c7 d3+ Kb2 e3 f7 a3+ Ka1 e2 f6 e1B h6 d2 h7 g3 Bc4 g4 Nc3 g2 Na2 d4 Kb1 d3 Rh5 g3 Re5 Bg4 c8B Qd4 Bb7 Ka7 Qf3 d1Q b6+ Kb8 b5 d2 Qe2 Qe3 Qd3 Qa4 Bb3 d1R Bc4 Bg7 f8N Ra7 f7 Bf6 Ne6 Bh4 Ng7 e6 f8Q+ Bd8 Bcd5 Ne7 Be4 Rg8 h8B Ng6 Qf4 Be7 Qh6 Rd2 Bf5 Rd8 Bfe4 Rf2 Bd2 Rf7 Bf5 Ra8 Bfe4 Nh4 Bh7 Ng6 Bg8 Qae4 Ba6 Qa4 b7 Ka7 b8N Nh4 Bc8 Ng6 Nd7 Rb8 Ne2 g1Q Nf6 g2 Nfe8 Qf1 b6+ Ka8 Ba6 g1Q Bc8 Qgg3 b7+ Ka7 Ng1 Qh2 Nf5 Bd1 Bf6 Bg4 Nfg7 Qa5 Bh4 Qa4 Bf2 Rf5 Nb4 a2+ Kb2 a1B+ Kb1 Ra8 Na2 Bb2 b8B+ Kb6 Bb7 Rf7 Ra5 Bba3 Be5 Rab8 Rd5 Ka7 Ba1 Be2 Rg5 Bg4 Re5
3K4/1p1bN1r1/2Rn1b1Q/R5Q1/r2q1BbN/r1RRbN2/2rR1k2/N1q2q2 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 h5 Qb3 f5 Ng1 f3 Qc2 f4 Bh3 Nc6 Qb3 Nd4 Qd1 Nf5 gxf5 Ra5 Bg4 hxg4 Qc2 Ra3 Qd1 Ra8 Kf2 Ke7 d4 Kf6 e4 Kg5 a4 Kh4 a5 c5 a6 g5 d6 b3 e5 c4 f6 b2 a7 c3 f7 c2 e6 Qb6 e7 Qa5 e8R Qc3 d5 Rb8 a8R Bf5 d7 Bg7 f8Q Rd8 d6 Bh7 Qd5 Bf5 R1a5 Qd4+ Re3 Bf6 Rc8 Ne7 Na3 b1B Rc6 Ra8 d8R Nc8 d7 Nd6 h3 Rh5 Qh6 Rc8 Bd2 c1Q Nc2 Be6 Na1 Bbf5 Qe5 Ra8 Rdc8 Ra7 d8N Bd7 Rc3 Ra8 Nc6 Ra6 Rac5 Ra3 Ne7 Ra4 Ra5 Bfe6 Qg6 Rh7 R8c6 Rg7 Ne2 Bf5 Rd1 Ra3 Ng1 g3+ Ke1 g4 Red3 g2 Qh6+ Kg3 h4 Ra4 h5 Bfe6 Be3 f2+ Ke2 f1R Nf3 g1B Qeg5 Kg2 Bd2 g3 Be3 Qa3 Kd2 Bg4 Kc2 Qc1+ Kb3 Rf2 Bd2 Nc4 Be3 Ra3+ Kb4 Rc2 Bd2 Kf2 Kb5 Qe4 Kc5 Nd6 Kb6 g2 Kc7 Qd4 Kd8 Ra4 Qh8 Ra3 h6 Ra4 h7 Ra3 Nh4 f3 Bf4 Ke2 Bh2 Ra4 Qe5+ Be3 Qb5 Rca2 Bf4 R2a3 Qf5 Rf7 Qg7 g1R h8N Rg2 Qfg5 f2 Q7h6 f1Q Nf3 Rg7 Ng6 Kf2 Nh2 Kg1 Nh4 Rc2 N2f3+ Kf2 R1d2+
b3kn2/4N1K1/Q2qNpb1/5QNr/6Nq/1n3pRQ/B1Q1n1r1/1qNR2r1 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 h4 g3 Be3 Qe7 Bf2 gxf2+ Kd2 Qa3 g4 Qc5 g5 Bh6 g6 Bg5 hxg5 Qf8 Rh2 Qe7 Rh1 Qd8 Kd3 a5 Ke4 d5+ Ke5 h5 b4 a4 c4 h4 e4 h3 b6 a3 g7 d3 g6 f3 b5 d4 b7 a2 c5 d2 b6 d3 c6 h2 c7 Ra6 Nc3 Bd7 c8Q Ra3 Qc2 d1R Nh3 d2 Ng5 Rc1 Rg1 h1Q Bc4 f1Q Ne2 d1B Rg3 Ne7 Kf6 Rf8 g8N Ba4 g7 Ng6+ Ne7 Rc3 g8N Qh6 e5 Qh4 e6 Nc6 b8Q Nd4 b7 Bc6 Nh6 Rg8 Qd6 Nf8 b8Q Ba8 Qda6 Rh8 Kg7 f6 Ng4 Rh5 Qf5 Bc2 Qbc7 Rb3 Rb1 a1N Bd5 Re1 Nc1 Rb2 Ba2 Nab3 Qcc4 Qfh1 Qf1 Bce4 Qc2 Ne2 Qh3 Qd6 Nd3 Ng6 Qf4 Nf8 Qcc1 Bac6 Nd5 Ng1 e7 Bg6 Qf5 Rg2 Qc2 Ba8 Rc1 Ne2 Ra1 Qe6 Rc1 Kd7 e8N Kd8 Nec7 Qd6 Nce6+ Ke8 Ra1 Rb1 Ne7 Qc1 Qh2 Qb2 Qh3 Rbg1 Rd1 Qb1 Nc1
n1K4N/Bp2b3/1RQ2pB1/2n3N1/Qqq1Q2n/4bN1N/r3Qb2/qk1r2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
b2B3Q/q1B1Rb2/2QpNb1B/1np1b3/rk2K3/1BRR2B1/nb1R3r/7r b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 b5 h4 gxh4 a4 Nh6 axb5 Ng8 c4 Na6 c5 Nb8 d5 Bh6 d6 Bg7 Nd2 Bh6 Nb3 cxd6 c6 Bf8 Nc5 dxc5 Kd2 e5 Ke3 Ke7 g4 a5 b4 h5 f4 e4 g5 h3 b6 h4 c7 h2 g6 a4 g7 a3 b5 a2 b7 h3 b6 Rh5 f6+ Ke6 f5+ Ke5 f7 Nc6 b8B Rh8 f6 Ra4 b7 Na7 Ne2 Bd6 f8B Ne7 g8Q Nec6 f7 Nb5 Bh6 Nb4 f8R Qe7 Rf3 Qg7 Rb1 a1B Nd4 Bb2 Ne6 Na2 Bc4 Qf7 Rhf1 h1R Bb3 h2 R1f2 Be7 Qh7 Bf6 Rd2 Qg7 Qf1 d6 Qg2 Bd7 c8R Be8 Rc7 Bf7 Qg8 Rh7 Re7 Rh8 Bc7 Qh7 Ke2 e3 b8B Qg7 Kd3 e2 Qe8 e1B Bd8 Bg3 Bbc7 Rh7 Qh8 Bf4 Bc2 Kd5 Bb3+ Kc6 Ra1 B4e5 Bf4 Rh3 Bg3 Rhh4 Rdf2 Rh3 Bh6 Rhh4 Rd1 Rh5 Bc2 Kd5 Ke3+ Kc4 Rd3 Kb4 Bb3 Rh3 Rc3 Rf1 Re8 h1B Bb6 Bg6 Rd2 Qa7 Bbc7 Rh2 Re7 Bf7 Kd3 Rd1 Re3 Rg1 Qb7 Rb1 Qb6 Ba8 Qc6 Rc1 Ke4 Rch1 Red3
2nqr2n/NN1n1Q2/1p2RpQ1/2R4B/qN4b1/r1R5/1N1R1Kn1/k1bR1n2 b - - 0 1 legal: proof: g4 d5 b4 a5 c4 axb4 cxd5 h5 f4 Kd7 g5 Ke8 f5 Kd7 f6 h4 g6 fxg6 f7 h3 Bb2 g5 Bf6 exf6 Bxh3+ Kd6 Bf1 Kd7 d4 Kd6 a4 c5 e4 g6 h4 c4 a5 g4 a6 g5 e5+ Ke7 h5 g3 e6 Kd6 e7 c3 e8R c2 h6 c1N h7 b3 a7 g4 Ra2 b2 Na3 b1Q Nh3 b6 Qd3 g2 Qg6 g1N Nf4 g3 Nd3 g2 Nb4 Ne7 Be2 Bh6 f8Q Qb3 Rd2 Nf3+ Kf2 g1N Qff7 Ng5 Bh5 N1f3 Rhd1 Rf8 h8R Bg4 Rh7 Ne2 Rg7 Ne1 Nc4+ Kd7 d6 Qa4 d5 Ng3 Nb2 Ng2 Rg8 Nf1 Rh8 Qc7 Rc8 Qd8 Rc3 Re8 Rh7 Na6 Rg7 Nc5 Rg8 Kc8 d7+ Kc7 Rf8 Kd6 Rh8 Ke5 d6 Nc8 Rh7 Qc7 d8N Nd7 Nb7 Qd8 Rh8 Re7 Re8 Re6 N2d3+ Kd4 Rc5 Re3 Re6 Rb8 a8R Rh3 Rca5 Kc3 Nb2 Rg3 Rc5+ Kb3 Nc2 Ka2 Raa5 Ra3 Rc3 Ra8 Rac5 Rb8 Nd4 Ra8 Nc6 Rb8 Na7 Ra8 Qfg8 Nf7 Q8g7 Nh8 Q7f7 Ne5 d7 Bf4 Rd4 Bc1 R4d3 Ka1 R3d2 Qe7 d8N Nd7 Ndc6 Qf8 Nb4 Qd8 Nac6 Ra5 Rf5 Re5 Na7 Re3 Rfc5 Re1 Red6 Re8 Re6
2b2R1b/4KQr1/n1p5/R2p1b1Q/1Q1q3N/1q1qBQ2/R3B1rq/Rnk1Q3 b - - 0 1 illegal: No possible last move
Q2q4/1nn2p2/BnQ2RBp/k1B1K1b1/1br2B2/Nn3R2/QQ4rB/1r4q1 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Nd2 Bh6 Ndf3 gxf3 g4 Bb7 h3 Bd5 g5 Be6 Bg2 Bg7 Bf1 Bg4 hxg4 Bf8 Kf2 a5 b4 d5 e4 Kd7 c4 Kc7 b6+ Kb7 c5 h6 e5 d3 b5 d4 g6 a4 g7 d2 g5 a3 c6+ Kc8 g6 a2 c7 Kb7 e6 d3 e7 Ra7 c8B+ Ka8 e8Q Nd7 Qb3 d1Q Rh3 d2 Bd3 Ne7 g8Q Nc5 g7 Ra4 b7+ Ka7 b8B+ Kb6 Ne2 Ka5 b6 Nb7 Ba7 Rc4 Qc6 Nd5 Nc3 Bb4 Nb1 Nc7 Bg6 Qh1 Qc2 d1R Qb2 Rg1 Qge8 Rg8 Na3 Rd1 Rb1 a1B Qee2 Rg1 Qa2 Bf6 Qeb2 Bg5 Be3 Re1 Bb8 Rec1 Bc5 Rg1 Rd1 Re1 Rd6 Rb1 Rf6 Qhd1 Rh1 Qc1 Rf1 Qcd1 Kg1 f2+ Kh2 f3 Kg3 Qe1 Qe4 Qe3 Kg4 Qe1 Kf5 Qc1 Qc6 Qcd1 Re1 f1N Ke5 f2 Re3 Nd2 Rd3 f1N Rdf3 Rh8 g8Q Ne3 Qf8 Qg1 Qfe8 Nb3 Qg8 Nd6 Ba6 Ned5 b7 Nb6 Qge8 Rg8 Qf8 Ncd5 Bc7 Rg7 b8B Nb7 Qfe8 Nd6 Qa8 Nb7 Qc6 Rg8 Kf5 Rg7 Bh2 Nc7 Ke5 Bgd2 Bh5 Rg2 Bg6 Bg5 Kf5 Ne8 Bbf4 Nc7 Ke5
1r1bBN2/p3r1k1/bb3qpQ/1QN2Q2/1N5R/4NK1n/1n2Q3/N2Rbbb1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 f5 Ke2 Kf7 h4 c5 d4 g2 b6 c4 d6 g3 b4 c3 d7 g6 e5 c2 b5 c1B d5 f4 d6 Ba3 h5 Rh6 b7 Bg7 e6+ Kf6 b6 Ne7 Qd5 Rh8 h6 Rh7 Nc3 Bc1 Kf3 Nf5 e7 Ne3 e8Q Nf5 Qe2 Ba3 Rh4 Qe7 d8N Bc5 d7 Ne3 Rd1 Nc6 b8Q Ba6 b7 Bb6 Ne6 Bd8 Nf8 Nb4 Qh5 Nc4 Nd5+ Kf7 Ne3 Nd5 Qf5+ Qf6 Qbe5 Nb2 b8N Kg8 Nc6 Rb8 Nb4 Bh8 Qb5 Re7 h7+ Kg7 Ne2 g1B Nd4 g2 Ndc2 Bf2 Qe2 g1B Na1 Bb6 d8N Be1 Nb7 Bd8 Ke4 f3 Nc5 f2 Kf3 Nf4 Qb5 Nh3 Bc4 f1B Bf7 Ra8 Be8 Rb8 Bd7 Kf7 Qe2 Bg7 h8Q Bb6 Bc6 Bh6 Ba4 Bg5 Qh5 Kg7 Be8 Bf4 Qd5 Bfc7 Qdc4 Bd8 Qb5 Nf2 Qg5 Nh3 Qh6+
Rn2b1q1/KBQRB1n1/2q3B1/2B4n/p1B5/1r2Nk1R/1R4pb/1qQ3nq b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Ke1 f4 Nc3 h5 Nd5 Ra6 Ne3 Rb6 Qd3 Rf6 Qd1 Rf5 gxf5 Ba3 Ng4 hxg4 Nh3 Bc5 Ng1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 g5 b4 d3 h4 f2 f6 d6 f7 f3 b6 g3 Kb5 d2 c4 Kf4 h5 g2 b7 g4 h6 g3 h7 a4 c5 d5 e5 d4 e6 d3 e7 Kg4 e8B Bd7+ c6 Bf5 c7 Nc6 Ka6 Be6 c8B Bd6 f8B Nge7 b8Q Bd7 b5 Nf5 b6 Ng7 Nh3 g1N b7 g2 Bg6 Bh2 Bc5 Qg8 Nf4 Kg3 Kb6 Be8 Qc7 Nb8 Be2 f1Q B1a3 f2 Ka7 Qe1 Qc1 d1Q Rb1 f1N Rb2 d2 Bc4 Qee2 Nd5+ Kf3 Ne3 Ng3 Be7 Qdf1 Bac5 d1Q Rd2 N3h5 Rd7 Bf4 Rh4 Qec2 Qb2 Qdb1 Qc1 Na6 b8R Bh2 Rb5 Nb8 Bb7+ Qe4 Rb2 Qc6 Re4 Nh3 Rg4 Qh1 Rh4 Ng1 Qb6 Qgd5 Qc7 Rf8 h8R Qg8 Bca6 Rf4 Bad3 Rb4 Bc4 Qh7 Rg8 Rb3 Rf8+ Bf7 Rc8 Be8 Rcd8 Qg8 Rc8 Na6 Ra8 Nb8 Rh3+
3Q4/n1p3r1/3QR1qb/1r2nN2/2kp2nB/1Rq5/Rp2Rb1N/1NNnRK2 b - - 0 1 legal: proof: d4 a5 c4 h5 b4 axb4 g4 d5 gxh5 dxc4 Qc2 e6 Qd2 Ra7 Qd1 Ra8 e4 Kd7 d5 Qe7 d6 Qh4 Bg2 Qd8 e5 Ke8 Bd5 exd5 f3 Be6 Be3 Bf5 Bc1 Be4 fxe4 Rh7 Qd4 Rh6 Qd1 Rh8 a4 Kd7 h4 Kc6 h6 Kc5 a5 f5 h5 g5 h7 b5 h6 c3 d7 c2 a6 f4 e6 g4 e5 f3 a7 f2+ Ke2 f1N e7 b3 e8R g3 e6 b4 e7 b2 Ra3 g2 Bf4 b3 Bg3 Nc6 Nf3 g1B Nh2 Nf6 Bh4 Rb8 a8R Rg8 h8R Kc4 h7 c1N+ Ke1 Qc8 d8Q Na7 Ra2 Rb6 Rb8 Rg7 Rg8 Qf5 h8N Qg6 Nf7 Ne3 Rb7 Nfg4 Ne5+ Kc5 Qd3 Nd1 Kf1 Rb5 Rh8 Bd4 Rh6 Bf2 Rb6 Qc6 Re6 d4 Qg3 Kb4 Nd3+ Kc4 Qgd6 Qc5 Rb7 Qb4 Rb6 Qc3 Rb8 Rf7 Rb7 Bh6 Rb6 Rg7 Rg1 Ne2 Nc1 Nf4 Rg2 Ng6 Rb7 Bfe3 Re2 N6e5 Rh8 Bf2 e8N Rf7 Ng7 Rd7 Nf5 Rg7 Rh7 Qf3 Nc3 b1Q Rb6 Qbe4 Nb1 b2 Rh8 Qc6 Rhe8 Qc3 R8e7 Qe8 Rb7 Qg6 Rb6 Rc5 Rb3 Rb5 Re1 Nf7 R6e2 Nfe5 Re6
Bb1r1qN1/4Q1r1/3p2nq/kQ1R1r2/5q1B/K4Q1p/1B1pB3/2Qq1bRQ b - - 0 1 illegal: No possible last move, all moves rejected
2N5/1N1pQ1N1/3nr3/1pqpN2b/1k1qQ2R/3n1bQR/1N2Qn1b/nB3K2 b - - 0 1 legal: proof: f4 a5 b4 h5 bxa5 b5 g4 hxg4 d4 c5 Ba3 cxd4 Bd6 exd6 Qc1 Rh5 Qd1 Re5 fxe5 Ra7 Qd2 Rc7 Qc1 Rc3 Qd2 Rh3 Qd1 Rh8 a4 Ke7 e4 g5 c4 f5 h4 g3 h5 d3 c5 g4 h6 g2 h7 f4 e6 g3 c6 f3 e5 Nh6 a6 Rg8 h8Q Nf7 c7 Bh6 a5 Rg7 a7 Rg6 a8Q Nc6 a6 Qf8 a7 Bf4 Qh2 Bb7 Nc3 Nb4 Na4 Bc6 Qe2 f2+ Kd1 d2 Ra3 Be4 Nf3 g1Q Nb2 g2 Qg3 Nd3 Rh4 Rf6 Qb8 d5 a8Q Qc8 Qa4 Nd6 Rc3 Bg6 Qae4 Bh5 Qg5 Qh8 Ra3 Bh2 c8N+ Ke8 e7 Re6 Qg3 Kf7 e8N Qg7 Kc2 d1B+ Kd2 Qh8 Ng7 Qf8 Na7 Ke7 Qb6 Qc8 Qbe3 Qc5 Rc3 Qh1 Rb3 g1N Bh3 Qg2 Bf5 Nh3 Bg6 Qg1 Nc8+ Kd8 Qeg5+ Kc7 Qe7 Kc6 Bf5 Qd4 Ra3 Kc5 Bg6 Rf6 e6 Kb4 Ne5 Bf3 Qf7 Bh5 e7 Re6 e8N Bf3 Qe7 Bh5 Qe1 Bdf3 Q1e2 f1N+ Kd1 Qe3 Bh7 Nd2 Bf5 Ndf2+ Ke1 Nb3 Kf1 Na1 Bh7 Qc3 Bg6 Qc5 Re3 Nf5 Ned6 Nf4 Nb7 Nd6 Qgg5 Bfg4 Reh3 Bf3 Qg3 N4d3 Qeg4 Ne1 Bb1 Ned3 Qge4
bq2k1K1/pQ1r2B1/1q2Qp1B/n1p5/5B2/bB2R3/r3BQrq/1Q1NqR2 b - - 0 1 illegal: No possible last move, all moves rejected
2r2bR1/1pR3b1/p1k4p/1q1N1r1N/nR5B/1K2QQQQ/1nr3p1/1RR3q1 b - - 0 1 illegal: No proof kernel
2R1n1r1/1Q2RBk1/B1Rp1qq1/1nQ4p/KB5b/Rp2r2B/1R1n1p1N/4n3 b - - 0 1 legal: proof: d4 a5 h4 e5 g4 g5 Nc3 b6 Nd5 c6 b4 axb4 Nf4 c5 hxg5 Bb7 f3 Be4 fxe4 exf4 e5 cxd4 Kd2 h5 c4 f5 Kc2 Kf7 Kb3 d3 a4 b5 e4 d6 g6+ Kg7 e6 f3 c5 f2 e7 d2 e8R f4 a5 f3 g5 Ra7 e5 Rc7 e6 Qe7 c6 Nh6 a6 Nf5 a7 Qd8 a8Q Qd7 e7 Ne3 Rh2 Na6 Bh3 f1N Rc8 Qd8 e8R Ng2 Ba3 Rb7 c7 Qf6 Qc2 d1N Qc5 Ne1 Rb2 f2 Nf3 Nc3 Nh2 Be7 Qb8 Ra7 Qb7 Rg8 Rc1 Bd8 Ra8 Be7 c8B Nc7 Rcc2 Ra5 Ra6 Ra4 Rc6 Bd8 Rce2 Ra8 R8e3 Re8 Rf3 Re3 Rg3 Be7 Rf3 Ne8 Rg3 Kg8 g7 Kh7 g8B+ Kg7 g6 Rb8 Ra2 Ra8 Bf7 Nd2+ Kb2 b3 Bb4 Rb8 Ka3 b2 Rf3 b1Q Rb2 Qe5 Rg3 Bh4 Rf3 Qf6 Rg3 Kh6 g7 Qbg6 g8R Kh7 Rf8 Kg7 Rh8 Rd3 Re7 Re3 Bhf5 Nd5+ Bd3 Ndc7 Bh3 Rd8 Bc3 b4+ Ka4 Rb8 Ba6 Nb5 Rf8 Nec7 Rc8 Ne8 Rg1 b3 Bb4 Ra8 Rg4 Rb8 Rc4 Ra8 Rc1 Rb8 Ra1 Nec7 Rd8 Rc8 Ra3 Rb8 Rdd7 Rg8 Rd8 Ne8 Rdc8
Q1NBnnQb/bNp1p2R/1pkqR2K/1q5R/1QR1b3/1Q5Q/1pb5/4r3 b - - 0 1 illegal: No proof kernel
N5n1/1Qb1p3/Rb1pQNN1/BQQ2bkq/p1K4R/3n1p2/4pQ2/3rq1N1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 f5 dxc5 fxe4 f5 g6 f6 Bb7 Be2 Bc8 h4 Nh6 g4 Nf7 g5 Nh6 Bg4 Ng8 Bf5 gxf5 g6 Bg7 Nf3 Bh6 Ng1 Bf8 Be3 a5 Na3 Ra6 Bf4 Rb6 Nb1 Rb3 Bg5 Rg3 Bc1 Rg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kd2 h5 Kc3 e3 b4 h4 g7 Kf7 b5 Kg6 f7 h3 b6 e2 b7 f4 c6 f3 c7 a3 Bd2 d6 Qf1 a2 Qf2 h2 Kc4 Bd7 c8Q Nf6 g8Q+ Bg7 f8N+ Kf5 g6 Kg4 Na3 Rh6 Qcc5 Na6 b8Q Bf5 Qbb5 Qe8 Qe6 Ng8 c3 Bd4 g7 Rh4 Ng6 Nb4 Be1 Nd3 Bd2 Nh6 g8N Kh5 Be1 Kg5 Nf6 Rg4 Qa6 Qh8 Nb5 Ng8 Nc7 Qh5 Na8 Rg2 Qcb5 Bb6 Qb7 Rg3 Kb3 Rg2 c4 Bc7 c5 Rg4 c6 Rd4 Bb4 Rd5 Kc4 a4 Rb1 a1B Ba5 Bc3 Rb3 Bb6 c7 Bcd4 c8Q Bc7 Qe5 Bdb6 Qce6 Nf4 Rb4 Rd1 Qec5 Nd3 Qce5 Bd4 Qbc5 Be3 Rb6 Bd4 Rc6 Be3 Qcb5 Beb6 Qec5 Ba7 Ra6 Bab6 Nh3+ Kh6 Rg1 h1Q Rg4 Qg1 Rh4 Qe1 Ng1 Kg5 Qbe4 Kh6 Q4d5 Kg5 Qb7
1q2k2R/6B1/K1Npn1Bn/1BR1R3/p1rRb1R1/7B/Bbp3nr/1b4rN b - - 0 1 illegal: No possible last move
K1k5/RNRqp1r1/p2bBNN1/b6N/R3b3/B2b1n2/1Np1bR2/rb3R2 b - - 0 1 illegal: No possible last move, all moves rejected
6RK/qpRBn1p1/4n3/1b1B1Rp1/2N1r3/1bBknp2/1B2RN1B/R1q3b1 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Nh3 f5 Ng1 h6 Qc2 f4 Qf5 Ra6 Qg5 hxg5 Kf2 Rf6 Ke1 Rf5 gxf5 Ke7 Bb2 Kd7 Bc1 Ke8 Kf2 Kd7 d4 Kd6 h4 c5 a4 b3 e4 c4 h5 b2 f6 c3 f7 c2 h6 Bh3 a5 Ne7 e5+ Kc7 h7 Nf5 d6+ Kc6 e6 Kd5 a6 Ke4 d7 Ne7 a7 Qc7 d8B Nbc6 a8R Qb8 d5 Ng8 d6 Bf5 d7 Kd4 e7 Nh6 e8B Qd6 Nd2 b1Q Bc7 Qb5 d8B Qb3 Bg2 Bg4 R8a2 Qda3 Nh3 Nf5 Bf6+ Kd3 Bc3 Qc4 Bd7 Nce7 B1b2 Ne3 Rhc1 Qa7 Bh1 Rg8 h8R Be6 B7e5 Qc6 Bb8 Bb3 Nc4 Ng6 Bg2 Bc5 f8R Ne7 Rf5 Re8 Rg8 Qc7 Re1 c1N Re2 Qc6 Ra5 Bb6 Rac5 Qc8 Rc7 Bd4 Kg1 f2+ Kh2 f1B Bd5 f3 Kg3 Bd1 Rb1 Nb3 Rc1 Nc5 Ra1 Nc2 Kg4 Bg1 Kh5 Ne3 Na3 Ne6 Nc4 Nc6 Kg6 Bb3 Kh7 Ne7 Re5 Rf8 Kh8 Rf4 Rf5 Rd4 Rc6 Re4 Bh2 Qc7 Rb6 Qc5 Rc6 Qca3 Rc7 Q3c5 Ra4 Qa3 Ra6 Qa1 Ra2 Qc1 Ra1 Qa5 Rf2 Qa7 Nd2 Kc2 Rg2 Bb5 Nc4+ Kd3 Rf2 Qa2 Re2 Qa7 Nf2+
QB1nn3/N1B5/pN1n1q2/1QRB3b/1K1bQ2N/2B3n1/b2N1rr1/2q2k2 b - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 c4 f5 exf5 g5 cxd5 gxh4 a4 bxa4 b5 c4 Ra3 c3 Rxc3 a3 Rc5 Be6 Rc8 Bxc8 d4 Kf7 Kd2 Kf6 Kc3 h5 g4 e5 f4 a2 d6 a1N g5+ Kg7 g6 Kf6 g7 e4 b6 h3 d7 a6 d5 h4 b7 h2 d6 h3 Qe2 e3 Kb4 Rh4 Bg2 Rg4 Qb5 e2 Na3 e1Q+ Bd2 Qc1 Nc4 Nb3 Nf3 Nc5 Nh4 Ne4 Rd1 Qe7 d8N h1N Nc6 h2 Na7 Nhg3 Bc3+ Qe5 Bf3 h1B Rd5 Be6 Rc5 Be7 d7 Nd6 Bd5 Bf3 d8B Nc6+ Ka4 Be2 Bc7 Rf8 b8B Nd8 Kb4 Rg6 Qb7 Bh5 Qb5 Nh6 g8Q Nhf7 Qh7 Ne8 Qh6 Nfd6 Qg5+ Kf7 Qg4 Bf6 Qe2 Bh8 Qe4 Kg7 f6+ Kh6 f5 Kg5 f7 Qf6 Qg2 Kg4 Qf3+ Kh3 Qe4 Rfg8 f8N Bg7 Nd7 Rf8 Ndb6 Bf7 Nf3 Kg2 Nh4+ Kg1 Rc6 Kf1 Rc5 Qe7 f6 Be6 f7 Bd4 Qc2 Qf6 Qb1 Nh1 Qe4 Rg2 Bd2 Ng3 Bc3 Rg8 f8Q Rg5 Qf7 Rf5 Qfd7 Rff2 Qdc6 Beg4 Qb7 Bd1 Q7c6 Bb3 Qa8 Ba2 Nd2+
3bBn1b/r5k1/2r2Q1R/1B2q1nR/3b1QKB/2B5/RN1p4/2bnn1QQ b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 a5 b3 a4 b6 a3 Nc3 dxc3 Qd6 Ba6 Qd5 Bb5 Qd1 Ba4 bxa4 Ra6 Qg4 Ra7 Qd1 Ra8 Ke2 Kf7 Kf3 d5 g4 e5 c5 h5 a5 a2 c6 h3 a6 h4 g5 h2 c7 h3 c8R e4+ Kg4 c2 f4 d4 b7 e3 g6+ Kg7 a7 e2 Rc5 e1B Ne2 d3 Bd2 c1B Bc3+ Qd4 f6+ Kh6 f7 d2 g7 Qe5 f5 Bh4 f6 Nd7 Ra5 Bc5 b8Q Nf8 Nf4 Bd4 Nd3 Rh7 Qb6 Rc8 a8Q Rc6 Nb2 Kg6 Bb5 Nh6+ Kf3 Bg5 g8B Bh4 Qg1+ Bg5 Rb1 a1B Ra3 Nd7 f8Q Nf7 Qb4 Nf8 Kg4 Bh4 Ra6 Ng5 Ra2 Ra7 f7 Kg7 Qa4 Ne4 Bh7 Bd8 Bf5 Ng5 Bd7 Bf2 Qf4 Bd4 Qg2 Rcc7 Be8 Rc6 Rd1 h1N Qg1 h2 Re1 Qc5 Re6 Qe5 Rh6 Nf2+ Kh5 Rc4 Qah1 Nd3 Kg4 Ne1 Qe6 Rc6 Qe7 Ng6 f8B+ Kg8 Rh5 Ne6 Na4 Rcc7 Bf1 Bf2 Rb7 Qd6 Qhf3 h1N Bb4 Bh8 Bc3 Qe5 Bfb5 Bd4 Rb6 Rc4 Bh6 Ngf8 Bg5 Rc5 Bh4 Ng5 Rbh6 Rc6 Nb2 Nf2+ Kg3 Nd1 Qf6 Rca6 Qfh1 Rc6 Qf5 Kg7 Kg4 Rac7 Qe6 Ra7 Qef6+
QnN1r2n/R3pr2/1B6/Qn1N3k/1nR1n3/1K2NbQn/2R2p2/Q5Rb b - - 0 1 legal: proof: d4 b5 h4 c5 b4 cxd4 a4 g5 axb5 gxh4 b6 a6 b7 Bg7 b5 Bh6 b6 Bf8 f4 d5 e4 Qc7 g4 Qc6 g5 Bh6 Bb5 axb5 g6 Bg5 fxg5 d3 Qh5 d4 Qd1 Qd5 exd5 Be6 Na3 Bd7 Nb1 Bc8 Kd2 f5 c4 h5 d6 f4 g7 Kf7 c5 Kg6 c6 b4 d7 f3 d8N b3 c7 b2 Ra6 h3 Na3 h4 Nf7 h2 Nc2 h3 Ra5 Bg4 c8R Rh7 Ra7 Kh5 g6 Nh6 Nd6 Nf7 g8R Nh8 Ne2 Rf7 Rg1 h1N g7 h2 Ne3 Nf2 Rc4 h1B Rgc8 Nh3 g8Q f2 Qd8 Bgf3 Qf1 b1N+ Kd1 d2 Kc2 d1N Kb3 d3 Nc3 d2 Ncd5 Nd7 b8Q Nbc3 b7 Nb5 Qa5 Nb2 R8c7 d1N Nc8 Nd3 Rc2 N7e5 R7c4 Nc6 Qg3 Ndb4 b8Q Ndc3 Bb2 Ne4 Qfa1 Neg5 Qb7 Nb8 Bd4 Ne4 Bb6 N8c6 Nd6 Re8 Nc8 Nb8 Qa8
R3r1Q1/Np5q/p1bkRbR1/1pnB1Q2/1B6/3Q4/2bRKbp1/r2Q3B b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 Be7 b4 Bc5 g4 hxg4 b5 Bf8 b6 a6 Qb3 Nc6 Qd1 Na7 bxa7 Bb4 Bg2 Bd6 Bf1 Bf8 a4 c6 a5 Qxa5 Nc3 Qa2 Nb5 cxb5 h4 Ke7 e4 f5 d4 g5 e6 f4 h5 f3 h6 g3 h7 g2 e5 g4 d6+ Kd8 e7+ Kd7 e8B+ Ke6 d7 g3 d8Q Nh6 d5+ Kf5 d6 Ke6 d7 Qb2 Bf7+ Kf5 e6 Ke5 e7 Rb8 e8R+ Be7 a8R Qb4+ Bd2 f2+ Ke2 Kd6 Rh2 Ng4 Nf3 g1B Bg2 Ne5 Bd5 Bf6 Bh1 Nd3 Nd4 Qb1 Bb4+ Nc5 Nc6 g2 Na7 Rf8 h8Q Qh7 Qg8 Rf7 Ra2 f1B+ Kd2 Bgd4 Rh6 Bf2 Rg6 Bd3 Re2 Bc2 Qdf8+ Re7 d8Q+ Bd7 Re4 Rc8 Ke2 Rc6 Qff7 Re8 Re3 Bb1 Rd2 Bc2 Qa5 Rc7 Qa3 Bc6 Qd3 Rce7 Rg7 Re4 Rg6 Rc4 Re5 Rc3 Re3 Ra3 Re5 Ra1 Qe6+ Kc7 Qef5 Kd6 Re6+
Qq2B1b1/R1n3K1/8/R1n2rNQ/2N3nr/Q2Q1Rb1/NR2n3/b1rqq1k1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 h4 Ke7 e4 Kd6 Ke2 Kc5 Kd3 a5 d6 g5 b6 f5 h5 f4 d7 f3 h6 f2 e5 a4 Ke4 a3 Kf5 Kd4 Kg6 c5 b7 g2 b4 c4 e6 c3 e7 g3 e8N c2 b5 c1N h7 g4 b6 a2 Rh5 Nf6 Bb5 f1R Nd6 Nd3 Nc4 Bd6 Qb3 Na6 b8Q Nc7 b7 Rf5 Qa3 Nc5 Nh3 g1Q Nc3 g2 Ng5 g3 Kg7 Qe1 d3 Ra5 Qa8 g1Q b8R g2 Rh3 Ng4 Rf3 Qde8 d8R Be6 Rd7 Bg8 Bc6 Qd1 Rb2 Qge1 Re7 Qc8 Be8 g1N Re5 Ne2 Re7 Nd5 Ra7 Ra4 Ra5 Bg3 Ra7 Nc7 Ra5 Bd5 Ra7 Rhf8 h8Q Qb8 Qh5 Bg8 Rc1 a1B Na2 Rd5 Rc3 Rf4 Rcb3 Rd8 Rb5 Rf5 Rba5 Rd6 Qf7 Rc6 Qh5 Kd5 d4 Rb4 Nh3 Ke4 d5 Ra4 d6 Kd4 Ne5 Rc4 d7 Rc1 Qf7 Rh6 Ng5 Rh4 Qh5 Qd3 Rf4+ Ke3 d8Q Qdb3 Ngf3 Kf2 Nc4 Qc2 Ng5+ Kg1 Rf3 Qcd1 Qdd3
R1nB1BN1/1b6/2N1Q1K1/1Q2Nr2/4b3/1n1pr2r/1kn1Q3/BNbrrq1B b - - 0 1 illegal: No possible last move
4BQ2/1bp3K1/6Q1/B1Q1Rr2/3kNb1N/r2n3N/1nn3qq/rB1QqqN1 b - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 d4 Ke7 Kd2 Kd6 Kd3 a5 Ke4 g5 h4 f6 b6 g4 b7 a4 b5 a3 b6 a2 h5 a1Q h6 Qb2 h7 Ra2 Bd2 Nc6 b8Q Qc3 b7 Bh6 Qa7 Nge7 b8Q Ne5 Qbb6+ N7c6 Rh5 Nd3 Re5 Bb7 Kf5 Ra3 Kg6 f5 e4 Rf8 h8N Nb2 Bd3 Bf4 Kg7 Qh4 Ng6 Qh2 Nh4 Qc4 Bc2 Qf1 Nc3 Rf6 Qba6 Rf8 Qd3 Nb4 Bb1 Rf6 Q3c2 N4d3 Be1 Be3 Bd2 f4 Be1 f3 Qc5+ Kd7 d6 f2 d5 Rf5 Bd2 Bf4 Be1 Qe2 Bd2 f1N Be1 Ne3 Bd2 Kc8 d7+ Kb8 d8N Qe1 d6 Kc8 Qa4 Nc2 Qa6 Kd7 Ne6 Qf1 Ng5 Qe1 N1h3 g1Q Ngf3 Qgf1 Nfg1 g2 Qab6 g3 Qa6 Kc8 d7+ Kb8 Qg6 Ka8 Qb4 Kb8 d8Q+ Ka7 Nge2 g1Q Qdf8 Qgf2 Neg1 g2 Qbe7 Qb6 Qc5 Ka6 Nd5 Qc6 Nf6 Qd5 Ba5 Qa2 Qf2 Qd5 Qd4 Kb5 Qe3 Kc4 Qec5+ Kb3 Re6 Qc6 e5 Qd5 Ne4 Qc6 Ngf3 g1R Re8 Rh1 e6 Rg1 e7 Rh1 Qa7 Kc4 Nfg1 Kd5 Rc8 Kc4 e8B Kd5 Qb6 Kc4 Qb5+ Kd4 Ra8 Qd5 Ra6 Qa2 Re6 Qd5 Re5 Qc6 Ng3 Qcg2 Ne4 Na4 Qd2 Qfe2 Ba2 Q1f2 Qe1 Nab2 Ngf3+ Ke3 Qb1 Rf1 Nfg1 Kd4 Qc1 Qee3 Qd2 Ra1 Qd1 Qee1 Bb1 Qff1 Qbc5#
1B1RQ2B/4b1k1/B2rrr2/1N2r1B1/K1nn4/3b1pQQ/2R1Qb1b/1Rqr4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nc4 f3 Ne3 Rh5 Ng2 fxg2 Ra6 Rh3 Ra1 Rh8 h4 g5 d4 a5 Kd2 c5 Kc2 f5 Kb3 Kf7 e4 g4 b6 a4+ Ka3 c4+ b4 f4 h5 f3 b7 c3 h6 c2 e5 Nd7 b8Q Ba6 h7 Nb6 e6+ Kg7 e7 Bd3 e8Q Qc7 d6 Nc4+ Ka2 a3 Kb3 a2 d7 Ra6 d8Q Re6 b5 Nh6 d5 Be7 d6 Nf5 b6 Rf8 d7 Nd4+ Ka4 Rff6 Be3 c1R Qe2 Re1 b7 Qc5 Rc1 a1R+ Qa2 Rb1 Rc2 Rbb6 Bg5 R1e5 Ne2 g1R Qdc8 g2 d8R g3 Nc3 Rbd6 Nb5 Qc6 Be2 Rd1 Qbc7 g1B b8B Bh2 Rg1 Rd2 Rb1 g2 Qc8d7 g1B Bf1 Re1 Be2 Re5 Qh3 Rdd1 Qb2 Bf2 Qa2 Red5 Bf1 Rde6 Qcg3 Rdd6 Qb2 Nf5 Qbe5 Nd4 Qe2 Qc5 Qd2 R1e4 Qe2 R4e5 Rcc1 Bg6 Qd2 Ne3 Na7 Be1 Ba6 Bd3 Nb5 Bf2 Qe1 Qc3 Qe2 Qb2 Rc7 Qc1 Rc2 Nc4 h8B#
4k3/1rn4r/B1RbB1Q1/b1r2Q2/b3QQ1p/2r1B1Rb/B2nK3/1q2RN1b b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Na3 exf4 Nc2 Qd6 axb5 Qd7 b6 Qd6 b5 Qd8 Nb4 axb4 e4 f5 g4 h5 d4 c5 b7 f3 e5 c4 d6 h3 b6 f4 e6 b3 g5 b2 g6 b1B d5 h4 d7+ Ke7 g7 h2 Qc2 c3 Ba6 f2+ Ke2 f1R Qf5 c2 Be3 c1B Ra3 Nf6 g8B Ne4 Nf3 Bc2 Nd2 Rf3 Re1 h1B Nf1 Rh7 Rb3 Qe8 d8R Bd2 Rd6 Ra7 Rc6 Qg6 d6+ Ke8 e7 Ba5 Be6 Nd2 Rd3 Ba4 Ra3 Nd7 b8Q Nc5 Qa8 Rb7 Ba2 Ne6 Rb3 Ra7 b7 Nc7 b8Q Rg3 Qb6 Rb7 Qb8 Rg5 Qe4 Rc5 d7+ Kf7 d8Q Bh3 Qd7 f3+ Kd1 f2 Ke2 Rc3 Qdg4 Qf5 Qc8 Qg6 Qcf5+ Ke8 Qgf4 Qg1 Bd4 Rc5 Rg3 Rc3 Be3 Rc5 Nh2 f1R Be6 Rf3 Nf1 Bg7 Qbb1 Be5 Ba2 Bd6 Qg6+ Kd7 e8B+ Kd8 Bef7 Kd7 Bd4 Rfc3 Bfe6+ Ke7 Qgf5 Ke8 Qbc2 Re5 Ba7 Qb6 Qd3 Qb1 Be3 Rec5 Qg6+ Kd8 Qdd5 Ke7 Qdf5 Kd8 Qgg4 Ke8 Qgg6+
rb1q4/n1Q5/R1b1bn2/2qQ2K1/3b1NQ1/Q1pN2RR/R4bB1/1Nk2qn1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Bh3 f4 Bg2 Qd5 Bf1 Qd8 b3 a5 Ba3 h6 Be7 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 Ke7 h4 Kd6 e4 Kc5 d4+ Kb4 h5 c5 e5 a4 e6 c3 d5 g6 d6 c4 e7 a3 e8N a2 f6 g4 f7 g5 h6 c2 d7 c1N h7 Nf6 b6 Nc6 b7 Ne2 Nh3 Na7 Rg1 Bd6 Bg2 Bb8 Nd6 c3 f8Q g3+ Kf1 Rg8 h8R g4 Rh4 f2 Nc4+ Qe7 d8Q Be6 Q8d7 Qc5 Q1d5 Rh8 Rh6 Rg8 Rh1 Ng1 Nb2 Rh8 Nd2 Ka3 b4 Rg8 b5 Rh8 b6 Rg8 Rd1 a1Q Rc1 Qa2 Rc2 Qb3 Qc7 Qa4 Qfe7 Qe8 Rh2 Qd8 Qcd7 Nf3 Ke2 Ng1+ Kd3 f3 Nf4 Rf8 R2h3 Rh8 Qc7 Re8 Qg7 Rg8 Qg6 Re8 Qe4 f1B+ Qe2 f2 Qe7 Qcd6 Ke3 Qb4 Qec4 Qc5+ Qcd4 Bc4 Nb1+ Kb3 Rd2 f1Q Rd3 Kc2 Qf8 Bc7 b8R Kc1 b7 Bb5 Ra8 Bc6 b8Q Be5 Qc8 Bb8 Qe7 Rh8 Qa6 Rf8 Qc7 Rg8 Qa3 Rh8 Bh1 g2 Rg6 g3 Rd2 Nc8 Ra6 Na7 Rg4 Nf3 Rg5 g1B+ Rf2 g2 Rgg3 Bh2 Re2 g1B+ Rf2 Rg8 Bg2 Rf8 Ng6 Re8 Kf4 Rh8 Re2 Bf2 Rd2 Ng1 Kg5 Rf8 Qg4 Bd4 Nf4 Re8 Rgd3 Bg3 Re3 Be1 Reg3 Bef2 Qb4 Qd7 Nd1 Rc8 Rda2 Qd8 Qd7 Bd6 Nb2 B6e5 Qa3 Ra8 Qh7 Bb8 Qg7 Nb5 Qc7 Na7 Nbd3+
BB2q2B/2qr2QK/1Q2p3/2Rq1R1N/2R4b/r3B2r/3R1qk1/2rQrnn1 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Ng8 Nd2 h6 Ndf3 Bb7 Ng5 hxg5 f6 Bd5 Ne2 Be6 Ng1 Bf5 gxf5 g4 Kd2 Kf7 b4 d5 c4 g5 h4 a5 h5 a4 c5 d3 Ke3 d2 b6 g3 c6 g2 b7 a3 b5 a2 h6 d4+ Kf2 g4 Kg3 e6 Kf4 d3 Kg5 g3 c7 e3 c8Q e2 b6 e1R h7 Qc7 Be2 Nd7 b8B Ne7 b7 Ra3 Rh6 Ne5 Bg4 Nd5 Qd8 Ne3 Bh3 Be7 Rh5 Nf1 Kh6 Nf3 Ne2 g1R Nf4 g2 Qd4 Rh1 Qb6 g1Q Bg2 Qf2 Rh2 Ng1 Nh5 Rd8 h8B Rd7 Kh7 Bd8 Rb1 a1Q Rb5 Qb2 Re5 Qb5 Rc5 Be7 Rh4 Rh3 Rhc4 Qa4 Qdb3 d1Q Be3 Qdf3 Qd1 d2 Bh1 Qd5 Bg2 Kf8 f7 Bh4 Bf3 Ke7 f8R Qac6 f6+ Kd6+ Rf7 Ke5 Bh1 Rd6 Rd7 Kf5 f7 Qb5 Rd8 Qe8 Qb2 Rd7 Qg7 Re7 f8R+ Rf7 Qa4 d1R Bg2 Rc1 Qd1 Qde5 Rd2 Qd5 Ba7 Be7 b8Q Bh4 Nf6 Rd7 Qb6 Ke5 Bb8 Kf5 Bd4 Kf4 Rf7 Qg5 Be3+ Kg3 Ba8 Kh2 Nh5 Qd5 Rf5 Kh1 Ng3+ Kg2 Nh5+
1r2nq1b/R2p1n2/1N2Q1R1/Q2R3q/1rn1q2Q/2k1RN1N/q3n2N/3K1Br1 b - - 0 1 illegal: No possible last move
1n1R2N1/nRp1r2r/bb1B4/R2BQ3/4RKn1/B1n4r/Q1b4p/1Q3kqQ b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Na3 exf4 Nc2 Qd6 axb5 Qd7 b6 Qd6 b5 Qd8 Nb4 axb4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 Kd4 e5 h5 g5 f5 b7 h3 b6 b3 e6 b2 e7 b1N e8Q h2 g6 h4 d6 h3 g7 Ra2 d7 Bc5 Bc4 Rh7 Ba3 Nc3 Bd5 Kd3 Qe5 Ne7 g8Q Nec6 Ne2 Qg5 d8R Qg1 Nd4 Na7 Nc6 Bd7 Ne7 Ba4 Qge6 Bc2 Ng8 Rb2 Qb1 Rb4 Qh6 Re4 Qa2 Bf2 Qef6 Ree7 Qe5 Qg7 Rhb1 Qg1 Re1 h1N Qc6 h2 Re4 Bd4 Bd6 Nf2 Ba3 Ng4 Bd6 Nd7 b8R Bf2 b7 Bb6 Ra8 Nb8 Rb1 Nab5 Ra5 Na7 Rb2 Qa1 Kg2 f3+ Kg3 f2 Kf4 Qg1 Ba3 f1B Rbb5 Nd7 b8Q Rh3 Qbb7 Nb8 Qg6 Re3 Qbc6 Ke2 d4 Ke1 Rb2 Ba6 Qa8 Kf1 Rb3 Bc5 Rb7 Rg3 Qb6 Rh3 Qbb2 Bb6 Qbb1+ Kf2 Bc4 Reh7 d5 Re7 d6 Reh7 Kg5 f4 d7 f3 Bd5 Kg2 Kf4 f2 Rc8 Re7 d8B Reh7 Bde7 f1R+ Kg5 Rf6 Rd8 Re6 Bed6 Ree7 Kf4 Kf2 Qab3 Qg2 Qh1 Qg1 Qb2 Kf1 Qa2 Nd7 Qc8 Nb8 Qcf5 Bad3 Qg6 Ba6 Rd4 Bb3 Qgc2 Ba4 Re4 Bb3 Qcb2 Bc2 Qbb1+
Q1Rn4/3K1k2/1BRQ2n1/q1B2pr1/1bq1Rb2/3rBp2/2Q4q/Rn1N2qB b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 g6 h5 Nc3 f6 Nd5 Bb7 Ne3 Bd5 Ng4 Bf7 gxf7+ Ke7 Qd2 hxg4 Qd3 Qe8 Qd1 Qd8 Kf2 d5 h4 a5 c4 g5 b4 f3 Kg3 a4 e4 d3 b6 d2 c5 a3 b5 d4 b7 a2 e5 f5 h5 d3 e6 Ra7 h6 Bg7 b6 Nc6 b8B Bf8 b7 Ra3 h7 Qa5 Qc2 d1Q Nh3 d2 Bc7 Rd3 b8Q Nd8 c6 Qe2 Bb6 d1N c7 Nc3 c8R Nb1 Nf2 Qe4 Qe5 Qc4 Qd6+ Kf6 Nd1 Ne7 Bf4 Ng6 Bfe3 Rg8 e7+ Kg7 e8R Be7 f8B+ Kf7 Qc6 Bb4 h8Q Rg7 Rh6 Rg8 Kh2 g3+ Kh3 g2 Re4 g1B Bg2 Bh2 Bh1 Bf4 Qa8 Qe5 Bfc5 Qd6 Qhc3 Qe5 Qe1 Qh8 Qg3 g4+ Kh2 Qe5 Kg1 Qh8 Kf2 Qb2 Qh2 g3+ Kf1 Bb8 Qcd2 Ne7 Rhc6 g2+ Kf2 Rg5 Qe5 Na3 Rc1 a1Q Qg3 Qe5 Qc2 Qaa2 Ra1 Nb1 Qh2 Qa5 Qf4 Rh5 Kg3 Qc7 Qe5 g1Q+ Kf4 Rg5 Qb7 Qd6 Qa8 Qh6 Qc7 Qh4+ Ke5 Qh3 Bd4 Qh8+ Kd6 Qhh2+ Kd7 Ng6 Qe5 Bd6 Be3 Bc7+ Qd4 Bf4 Qd6
1r1RQ1R1/1N2bQn1/7R/1q1p2B1/1nbB2r1/KRB1pQ1n/3q1B2/2r1n1k1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 g6 exf5 Kf7 d4 cxd4 f6 Ke6 f7 Kd6 g4 Nf6 f5 Ng8 f6 Bh6 Nc3 Bg7 Bd3 Bf8 Bf5 gxf5 Ne4+ Kc7 g5 h5 Nf2 Kd6 Ng4 hxg4 Kd2 Kd5 h4 Ke4 b4 e5 c4 d5 Kc2 a5 Kb3 g3 b6 f4 g6 f3 h5 g2 c5 f2 c6 f1N b7 d3 b5 d2 b6 Ke3 c7 Kf2 g7 e4 h6 Ba3 f8B Bd6 f7 Qe8 h7 Ne3 Ne2 g1N Rh6 Na6 b8B Ne7 b7 Rg8 h8B Ng2 Ng3 Nf5 Ra3 Nh3 Qf3+ Kg1 Ba7+ Bc5 b8R d1Q+ Kb2 a4 Rab3 a3+ Ka2 Bb7 c8Q Ne1 Qe6 Qa4 Rd8 Rb8 Qe8 Bc6 Bb2 Qd2 Be7 Bb5 f8Q Bc4 Qff7 Qb5 Bh4 e3 Ne4 Qc2 Nd6 Qd2 Nb7 Be7 Bc5 Ng3 Bd6 Nh5 Bf4 Nb4+ Ka1 a2 Bc3 Qd4 Kb2 a1R Bfg3 Rc1 Ka3 Qd2 Bf2+ Kf1 Bg5 Rf8 Qe6 Rf4 g8R Rg4 Bhd4 Ng7 Qff6 Kg2 Qe6f7 Kh1 Qf3+ Kh2 Bg3+ Kg1 Bf2+
1Q2Q3/p1R2K1n/2Rr3b/nQ1rR3/1Q2Bprq/qB3bk1/qr2N1B1/2R5 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 b3 h6 Qc2 Bb4 Kd1 Bb7 Bb2 Qh4 Nc3 Qh5 Ne4 Qh4 Bd4 Qg5 Kc1 Qd8 Qd1 Bf8 Ng5 Bc8 Bf2 gxf2 g4 Bb7 Ne4 Bc8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Nh3 Kd7 Ng1 Ke8 Kc2 Kd7 Kc3 Kd6 Kc4 Ke5 d4+ Ke4 h4 f5 g6 c5 g7 f3 h5 Kf4 e4 g3 h6 g2 d6 Bb7 h7 Kg3 b4 f4 b6 Qf6 d7 Na6 d8R Qg5 d5 Bd6 e5 Bc8 b7 Qh6 b8Q Qg6 b5 Bf5 e6 Bf8 d6 Qh5 Kd5 c4 e7 c3 e8B c2 b6 c1Q b7 Be4+ Ke6 Nf6 g8B Qa3 d7 Qh4 Qd3 Nb4 Rc1 Nc6 Kf7 Na5 Rc7 Bh6 Qb5 Bc6 Bd3 f1R Be4 f2 Rdc8 Rb1 d8R f1Q Rd5 Qf2 Re5 Rb2 Bd7 Qc2 Be6 Qcb3 B6d5 Qba2 Ne2+ Kf2 Rd7 g1R Rdc7 Rg2 Bb3 Rg4 Bg2 Bf3 Rhc1 Rg6 R7c6 Rg4 Qd6 Rb8 R8c7 Rd8 Qdb4 Rd6 b8Q Rd5 Ke7 Rd6 Bgd5 Rhd8 h8Q Nh7+ Kf7 R8d7+ Re7 Rd8 Be4 Rd5 Re5 R8d6 Nc3 Kg3 Qhg8 Qb1 Qge8 Qba2 Ne2+
NR2rb1K/1r4R1/1Np4k/1nqb3b/2r1b3/q2R1N1b/1NQp3R/B1Q4Q b - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 gxh4 c4 dxc4 d5 e6 e4 Be7 f4 Bc5 d6 Nd7 f5 Bd4 Bd3 Bg7 e5 Bf8 Be4 Nc5 Bd5 exd5 Na3 Kd7 Nb1 Ne6 fxe6+ Ke8 Ke2 h5 Kf3 a5 Kf4 f5 g4 c6 b4 d4 b6 h3 d7+ Ke7 Kg5 f4 Kg6 d3 g5 d2 b5 a4 b7 c3 b8N h4 b6 a3 b7 c2 Rh2 a2 Nf3 Qb6 d8R Qc5 Rd3 Ra7 Nd7 Nh6 b8R Rb7 Bb2 c1R Na3 Nf7 Nb6 Rc4 Qc2 Nd6 Rg1 Nb5 Ba1 Rg8+ Kh7 Ke8+ e7 Kf7 e8N Bg4 Nc7 Bh5 Rf2 h2 Nca8 h1B Rh2 h3 Rg4 Bh6 Rgg2 Re8 e6+ Kf8+ e7+ Kf7 Bf6 Bf8 Kh8 a1Q Rg3 Qa2 Ba1 Kg6 Rg1 Rb4 Nac4 Qa3 Nb2 Rc4 Nd4 Be4 Nf3 Bg4 Qc1 Kh5 g6 Kh6 g7 Bh5 g8Q Bd5 Nh4 f3 Qg2 f2 Nf3 f1B Qh1 Be4 Rg7 Bd5 Re2 h2 Qc2 Bh3 Qcc1 Rd8 e8Q Be4 Qe5 Re8 Qec3 Bd5 Q3c2 Be4 Qhf1 h1B Rh2 B1g2 Qh1 Bd5 Nh4 Bge4 Nf3
3N4/R1r5/1N1n1r2/rpQQn3/5R1q/1qQRBrp1/qQN2N1b/5knK b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g4 f5 Qc2 h5 Bh3 f3 Qb3 f4 Qd1 Bf5 gxf5 Nc6 Bg4 hxg4 Kf1 Nb8 Kf2 Qg5 Ke1 Qd8 Kf1 Kd7 d4 Kd6 e4 g5 a4 b5 h4 c5 h5 g3 f6 c4 f7 g4 a5 c3 h6 f2 Kg2 f1R h7 c2 a6 b3 a7 b2 Na3 b1Q Be3 c1Q Nh3 Qh4 Nf2 Qc4 Nc2 Qba2 Rg1 Bg7 f8Q+ Ne7 Qd2 Bh6 Qc3 Nc6 Qb2 Rg8 h8Q Ne5 Qc8 Rc1 Rd1 Qcb3 Rd3 Rg6 Qhf8 Rf6 Qcc3 Bg7 Qfc8 Nf5 Q8c5+ Kd7 d6 Ke6 d7 Nd6 d8Q Bh6 Qe1 f3+ Kg1 g2 d5+ Kf7 Qd7+ Kg6 Qb7 Kh5 Qf7+ Ng6 e5 Bf4 e6 Kg5 e7 Ne5 e8R Kf5 Nh3 Ke4 Rf8 Bg3 Nd4 Rc3 Nc2 Bf4 Qg3 f2+ Kh2 g1N Kh1 f1R Qb7 Rd8 a8N Rf3 Nb6 Ra8 Qe1 Rc4 Qec3 Ra5 Qbc6 Bh2 Nf2+ Kf5 Rf7 g3 Ra7 Rf8 Rf1 Rf6 Ng4 Ke4 Qd7 R3f5 Nf2+ Kf3 Qb7 Ke2 Qf7 Ne4 d6 Rf3 d7 Nd6 d8N Rg4 Bd4 Rg7 Qfd5 Rc7 Be3 R3f5 Rfd1 Rf3 R1d2+ Kf1 Rd4 Rc8 Rf4 Rc7 Rd3
3B2Q1/1B2n3/K1k2pn1/R1pR2rb/1QR5/1q2b3/QN2BBbn/1nqR2b1 b - - 0 1 legal: proof: f4 b5 c4 d5 a4 dxc4 f5 f6 g4 e6 axb5 exf5 g5 f4 g6 Qd6 Ra6 Qe7 Ra1 Qd8 Nh3 a5 Nc3 Kd7 Ne4 h6 Nef2 h5 Ng4 hxg4 Ng1 Ra6 Qc2 Re6 Qb3 Re7 Qd1 Rf7 gxf7 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 e4 c5 Ke2 a4 b4 g3 d4 a3 e5 g2 d5 c3 Kd3 g4 Kc4 g3 e6+ Kd6 b6 f3 Kb5 f2 b7 a2 e7 c2 e8B Qc7 h5 Bg4 h6 Bh3 h7 Ne7 Qe2 Bf5 Bd7 Nec6 Nf3 g1Q Ne5 g2 Be3 c1B Bc8 Bg6 Nd3 Bh5 Nb2 Rg8 h8R Nd7 b8R Rg5 Ka6 Ne7 b5 Ne5 b6 N5g6 b7 Bh6 f8Q Qd8 Bd4 Be3 Qg8 Qc7 Ra8 Qb8 Rd1 a1N Rh4 Nc2 Ra7 Kc7 d6+ Kc6 d7 Na3 d8B Nb1 Qec4 Qg3 Be2 f1B b8Q Qh1 Ra8 g1N Qa2 Bg2 Qb4 Nf3 Rf4 Bg1 Bf2 Nh2 Rc4 Qb3 Rh7 Nf5 Rhd7 Nfe7 R7d5 Rg4 Rb8 Be3 Rb5 Rg3 Ra5 Rg5 Bg3 Bgf2 Bh4 Qe1 Bg3 Bg1 Bh4 Qd2 Bf2 Qc1 Bb7#
4Q3/kn3N1p/RnqR1K2/2B2Q2/1q4Q1/1npr1Nq1/N2q1n2/1NR1bQ1r b - - 0 1 illegal: No possible last move, all moves rejected
3K3n/1Q1B2q1/qNrBbNQ1/2Q1B3/4Q1p1/1kp3n1/3r1p1r/1qN1BR1b b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 b4 h5 Ba3 f5 Bc1 f4 Ra6 Be7 Rg6 Bd6 Rg4 hxg4 Qa4 f2+ Kd1 f3 Kc2 Bf4 gxf4 Bb7 Kb2 Rh3 Qd1 Rh8 Kc2 Bc8 Kc3 Kd7 Kd4 Ke6+ Kc5 a5 h4 g5 e4 a4 d4 a3 b6 g3 e5 g4 f5+ Kd7 b7 g2 h5 c6 b5 c3 d5 c2 h6 a2 e6+ Ke7 d6+ Kf6 h7 Ke5 b6 a1Q d7 Qc7 d8Q Qe7+ Q8d6+ Ke4 f6 Ra6 f7 Ra8 f8Q Qeg7 e7 Nf6 e8N Ra2 Na3 Nh5 Bb5 f1B Bd2 c1R+ Nc4 f2 Ne2 g1Q Be1 Rd2 Qa4 Ng3 Qg6+ Bf5 Nf6+ Kd3 Kd6 c5 Qb4 Qa6 Bd7 Kc2+ Kc7 Nc6 b8Q Nd8 b7 Bg2 Nb6 c4 Qfc5 Nf7 Qa7 Bge4 b8B Be6 Qb7 Qf1 Qa4+ Kb2 Rg1 Bh1 Qac6 Rc3 Nc1 Qd3 Qce4 Qb1 Ne2 Kb3 Rf1 Rd8 h8B Rc1 Bb5 c3 Bc6 R8d6 Bd7 Rcd1 Kc8 Rc6+ Bc7 Qh6 Bg7 Nh8 Kd8 Qh7 Bf8 Qg7 Bcd6 Rd3 Be5 R1d2 Bfd6 Rd5 Bd4 Rh5 B4e5 Rh2 Nc1+
2b1B1R1/1QB3K1/q5b1/q3p3/kR2QQrp/n2r1p2/2N2RbQ/r3B1nR b - - 0 1 illegal: No possible last move, all moves rejected
1r2k1K1/nnp5/r2BQ1RQ/p4QN1/1q6/Nr1rp1BB/6Nr/BQb3b1 b - - 0 1 legal: proof: f4 d5 e4 dxe4 c4 b5 b4 bxc4 a4 f5 g4 h5 gxf5 Bb7 f6 Nd7 f5 Bc6 Ra3 Bb5 axb5 Nb8 Rg3 Qd3 Rg6 Qd8 Rg4 hxg4 Ke2 e5 Ke3 g5 d4 a5 h4 c3 d5 c2 b6 g3 h5 g4 d6 g2 b5 g3 h6 Ra6 b7 Kf7 h7 Rc6 b6 Qc8 d7 Rc4 d8N+ Ke8 f7+ Ke7 Na3 Rc5 Qh5 Bg7 Qh6 Nf6 f8B+ Ke8 Nf7 Rc6 Bd6 Nfd7 f6 Nc5 Ne2 g1R Bh3 g2 Ng5 Rd1 Rg1 Qg4 Nf4 Rd2 Bb2 c1B Ba1 Rf8 h8B Rd3+ Kf2 Qh4+ Ke2 e3 Kf3 Qe1 Kg4 e2 Kh5 e4 Kg6 Qb4 Kh7 e1R Bae5 Ree3 f7+ Kd8 Ba1 Bd4 Bhe5 Rb3 Qe6 Red3 Qh6 Re8 f8Q Bf2 Qf7 e3 Qf5 Rh8+ Kg7 Rh7+ Kg8 Ke8 Bf8 Re6 Bfd6 Nc6 b8Q+ Nd8 Nc4 Nb7 Na3 Rf6 Qa7 Nc6 Qa6 Na7 Qc4 Rd7 Qa6 Rd8 Qc4 Rb8 Qce6+ Kd8 Rh1 g1R Ng2 Rgd1 Bg3 R1d2 Rf1 Bg1 Rf4 Nc5 b7 Re2 Rg4 Red2 Nf3 Rc2 Rg6 Rcb2 Qc4 Ke8 Ng5 Rbd2 Nf4 Rh2 Ng2 Rd8 b8Q Nb7 Be7 Ra6 Bed6 Nc5 Qb6 Nb7 Qc2 Ra8 Qb1 Rb8 Qc6+ Kd8 Qcd5 Ke8 Qde6+
rbn2K2/1Q1Qn3/Q2B2Qp/1pn5/n1R1B1R1/2r1q2R/5kp1/BNR2rn1 b - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 f5 b4 axb4 g4 fxg4 d6 e5 h3 g5 d5 g3 Nc3 g2 Nb5 g4 Nd4 exd4 Kd2 g3 Ke1 Bg4 hxg4 Ra7 Nf3 Ra6 Ng1 Ra8 Kd2 Kf7 Kd3 Kg6 Ke4 c5 Ke5 b5 Ke6 c4 f4 c3 a4 c2 e4 h6 f5+ Kg7 e5 d3 f6+ Kg6 f7 b3 a5 b2 a6 b1N g5 d2 a7 Na6 d7 Bb4 f8B Qa5 d8Q Qc7 d6 Bc5 d7 Qa5 Qf6+ Kh7 Kf7 Be7 d8R Nc5 e6 Bd6 e7 Na4 e8Q Na3 Rh3 Ne7 Rc8 Qc3 Rc4 Qe3 Bb2 c1N Ne2 g1N Nc3 g2 Nb1 Bb8 Qa6 Nd3 Bc3 Ndc5 Bd3+ Ng6 Qh5 d1R Qd7 Rf1+ Bf6 Rg8 Bd6 Rc8 Be4 Rc7 Bb7 Ne7 Kf8 Qe6 Qg4 Kg6 Qg3 Kf5 g6 Rc6 g7 Rc7 g8R Rc8+ Qd8 Qe3 Bd4 Rc6 Qd7+ Ke4+ Bf6+ Kd3 Qg6+ Ke2 Rg7 Rc7 Be4 Kf2 Rc3 Ng8 Qgg4 Nb7 Nd2 Ne7 Rac1 Nc4 Nb1 Ncb6 Rc6 Nbc8 Ba1 Qc3 Qge6 Qe3 R6c3 Rc5 Rg4 Rc4 Qg6 Nbc5 Rb3 Rc3 Rb4 Bc7 Rc4 Rb8 Be5 Bd6 a8Q Bc7 Qad5 Ra8 Bd6 Bb8 Q5b7
n2kBR2/Bn5B/b2r1rb1/5nr1/nn5B/3RB1B1/2R2bKb/3RbQN1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ke1 f4 Nc3 Qf6 Ne4 Qf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 a5 e4 d5 h4 g5 c4 d3 b4 d2 b6 a4 c5 a3 f6 a2 b7 d4 f7+ Kd8 b5 d3 b6 Ne7 c6 Bf5 h5 Na6 b8B Nc8 h6 Nc7 h7 Bb4 f8B Bg6 e5 Nd6 e6 Rg8 h8R Nb7 Be2 g3+ Kf1 g4 R1h3 g2+ Kf2 Ra6 Ba7 Na8 Qb3 d1R R8h4 d2 Rb1 a1N Qa2 Nc2 Rb3 Ba5 Rb1 Nb4 Bf1 Rg7 Ne2 Rg8 Kg1 f2+ Kh2 g1B+ Kg2 g3 Qc4 Rg7 Rh8 Bh2 Ng1 Rg8 Be2 f1N Bd3 Rg7 Bc5+ Rg8 Bf2 f3+ Kh1 Ne3 c7+ Ke8 e7 Nf5 Be3 f2 c8R+ Kd7 Be4 f1B e8B+ Ke7 Rc6 Kd8 Bb2 Bd3 Kg2 Rf1 Qc1 d1N Rc2 Nc3 Ba1 Rf3 Qf1 Na4 Rd1 Rg7 Bad4 Be2 Bf2 Rd3 Bc5 Rd6 Bce3 Bd3 Rf8 Rf6 Kf3 g2 Bh4 Rg8 Ne2 g1B Kg2 Bf2 Ng1 Nc6 Rg3 Bae1 Rf3 Nb4 Rh3 Na5 b7 Rd6 b8B Nb7 Rf3 Ba6 Bd3 Rc6 Bbg3 Rd6 Be4 Bf7 Bd3 Rg5 Be4 Ne7 Bh7 Nf5 Bec5 Bh5 Rfd3 Bg6 Be3
3rq3/2b2b2/B1kB1N2/b2r2Nr/Nr2R3/1R2NN1B/1rBrR2K/rn1r4 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 h5 Qe1 f4 Qg3 Nc6 Ke1 Nce7 Qg2 Nf5 gxf5 Ke7 Qg5+ Ke8 Qg4 hxg4 Kf2 d5 b4 Kd7 c4 g5 e4 a5 h4 a4 f6 d3 h5 d4 c5 d2 h6 d1R e5 a3 b6 d3 c6+ Ke6 b7 Kd5 b8N d2 c7 a2 f7 Bd6 f8N Ne7 e6 Qe8 Na6 Kc6 h7 Nd5 e7 Nc3 Nc5 Be6 c8B Bc7 Rh2 Bf7 Na3 Nb1 Bca6 Rd8 Nfd7 Ba5 Na4 Bc7 Ne2 g3+ Kg1 g4 Nc2 g2 Ne3 Ba5 Rh4 f2+ Kh2 g1R Nf6 f3 Bh3 f1R Ba3 Rg3 Ng1 f2 Nf3 Rfe1 Nc4 Re5 Ne3 f1R b5+ Kc7 b6+ Kc6 b7 Rf2+ Ng2 Red5 b8R Re2 Rb7 Re4 Bd6 Rb4 Ne3 Rgg1 Nh5 Rge1 Nf6 g3+ Kg2 Rh1 Re4 Rg8 h8N Rb2 Bc5 Rg4 Bd6 Rh4 Rb3 Rg4 Re6 Rb4 Re4 Bc7 Ng6 Ba5 Ngh4 Bc7 Ng5 Ba5 Kf3 g2 Kg3 g1B Nhf3 Bh2+ Kg2 Nc3 Rc1 a1R Rc2 Bf4 Bf5 Rh5 Bh3 Rba2 Rcb2 Rdb1 Rc2 d1R Rf2 Rbb2 Re2 Qd7 e8B Nb1 Be7 Bfc7 Bd6 Rbd2 Kg3 Rab2 Kh2 Bg8 Bg6 Bf7 Rh4 Qe7 Bc2 Qe8 Re4
1bR1R3/7k/1qQBq3/b2nnRBr/RN1B1nn1/b3p3/3nR1b1/4KR1B b - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 a4 b5 f5 c6 Nc3 Kf7 Nd5 Ra6 axb5 c5 g5 cxd4 Ne3 Rf6 gxf6 Ke8 Ng4 hxg4 b4 Kf7 c4 d5 h4 g5 c5 e5 c6 g3 c7 g2 b6 g4 h5 e3 h6 e2 b5 e4 b7 a4 b6 g3 h7 d3 Rb1 a3 Qc2 d4 Rh3 a2 Rh6 a1B Qc5 Nd7 b8B Ne5 b7 Ne7 Ba3 Nd5 Nf3 g1N Bh3 g2 Rb2 d2+ Kf2 d1Q Ne1 d3 Qc6 d2 Bd6 Ngf3 Nd3 g1N Rh4 Qb3 Bg2 e1B+ Kf1 d1N Re2 e3 Nb4 Bb2 Bh1 Ba3 Rg4 Be6 c8R Nh3 Bbc7 Qa2 b8R Nhf4 Be7 Bc3 Bcd6 Nd2+ Ke1 Qb6 Re8 Bd7 Rbc8 Nf2 Rh4 Nfg4 Bd8 Rg8 h8B Rg5 Bg7 Kg8 B8e7 Nh6 f7+ Kh7 f6 Bh3 Bd8 Be7 f8R Bg2 f7 Rh5 Bh8 Bf6 B8e7 Bg7 Bg5 Bf6 Rg4 Bd8 Bhf6 Bc7 Bg7 Bb8 Bh8 Neg6 Bd4 Ne5 Rh4 Ne6 Rf4 Nhg4 Rf1 Qb3 Rg8 Qa2 f8R Nef4 Rf5 Qc4 Na6 Ba5 Nb4 Ba7 Ra8 Bb8 Rgf8 Ndf6 Rc8 Qe6 Rfe8 N6d5 Nd3 Bc3 Ra4 Ba5 Nb4
2bnBkN1/2K4n/1pBB2Nr/6qQ/pN3r1b/1N3nq1/5q1B/2B2BqR b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 a4 gxh4 b4 a6 b5 axb5 a5 Qd6 Ra3 Qd8 Ra4 bxa4 Ke2 c5 Kd3 h5 Ke4 e5 f4 h3 d4 h2 g4 b6 a6 c4 d6 h4 Kd5 h3 f6 e4 f5 e3 g5 c3 g6 e2 f7+ Kd7 f6 e1Q g7 c2 a7 Be7 f8N+ Ke8 d7+ Kf7 Nh7 Qc3 Nd2 Bc5 Ne2 Qd3 Nb3 Ba6 Nc3 Bb4 Na2 Bc8 Qh5+ Qg6 Ke5 Be7 d5 Qf8 d6 Nc6+ Kd5 Rb8 a8B Nd8 Bc6 Ra8 Nb4 Ra5+ Kd4 Rf5 Ke4 Rf4+ Kd5 Nh6 Ke5 Nf5 Kd5 Nh4 Ke5 Ne6 d8B Nf3+ Kd5 Kg8 d7 Qg3 Bc7 Qf7 d8N Qf8 Ng5 Rh6 Ne4 Qf7 Be8 Qf8 Ndc6 Nd8 Bd2 c1Q f7+ Kh7 g8B+ Kg7 Be3 Bh4 Ne7 Qd2+ Bd3 Qdg2 Bf1 Q2f2 Bh7 Qg8 Bc1 Kf8 Nf6 Q8g7 Kd6 Q7g5 Rg1 h1N Be4 h2 B4c6 Qe1 Bb8 Nf2 Rh1 Ng4 Kc7 Qe2 Nfg8 Nf6 Bd2 Nh7 Bc1 Kg7 Ned5 Qef2 f8B+ Kh8 Bd6 Kg7 Rg1 h1Q Nde7 Qhg2 Rh1 Kf8 Be5 Rf5 Bef4 Q3g4 Bh2 Bb7 Kd7 Qgg1 Bbf4 Bc8+ Kc7 Q4g3 Bd6 Rf4 Ng6+
b2K2bR/3p1NB1/2Q4R/2rk1r2/BB3RRR/q1r3qB/p1n4n/1Rnn4 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra5 h5 Nd5 f4 Ra1 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 Kd3 Kf7 Ke4 Ke6 c4 g5 h4 a5 b4 g3 b6 g2 c5 d3 b7 a4 c6 a3 b5 g4 f5+ Kd6 b6 a2 c7 g3 h5 d2 h6 Ra7 f6 Ra4+ Kf5 Re4 h7 Re8 e4 Na6 b8R Re6 f7 Rg6 f8R Rh6 e5+ Kd5 b7 Rc6 e6 Qe7 Qc2 d1N Rh4 Rd6 Bb2 Nf6 Nh3 g1N Rb1 g2 Ng5 Rg8 h8R Ng4 R8h6 Nb4 Bg7 Rc6 Nf7 Nh2 Kg6 Qd6 Kf6 Ne2 Rg4 g1Q Bh3 Qdg3 Ke7 f1B Kd8 f2 e7 Rc3 e8R Nc1 Ree4 Bc4 Rgh4 f1R Reg4 Rf2 Ra8 Qh1 b8B Bb7 c8B Rf5 Bd6 Qhf3 Bc5 Bc6 Bb7 Bb3 Qg2 Nc2 Bb4 Rh8 Ra4 Rc5 Ba6 Ba8 Bb5 Rh7 Rh8 Rc3 Rf6 Rhh5 Raa6 Bc4 Ba4 Bb3 Rae6 Rhg5 Ree4 Qe3 Rfh6 Qa7 Bb5 Qa3 Ref4+ Rf3 Rc6 Re5 Rf8 Rgf5 Rfc4 Re4 Ne5 Rc3 Bd6 Ke6 Ba4 Re2 Rcf4 Re4 Rfh8 Rec4 Rb6 Rc6 Bb4 Bd5 Rb7 R6c5 Rb6+ Bac6 Qh1 Kd6 Ra6 Bg8 Nf7+ Ke6 Nd6 Ba8 Qb7 Rc6 Nf7 Kd5 Qc8 R6c4 Rah6 Rc5 Qc6+
n4b2/2qr1BN1/krRNnQb1/NpR2Npq/p7/2n1K1R1/5R2/q4RR1 b - - 0 1 legal: proof: e4 f5 exf5 d5 b4 h5 c4 Be6 cxd5 Bc8 g4 hxg4 a4 Qd7 a5 Qd6 b5 Qd7 b6 Qd6 Ba3 Qd7 Bb4 axb6 a6 Qd8 Ba5 bxa5 Ke2 Kd7 f4 c5 d4 Kc7 h4 Kb6 a7 g5 h5 e5 d6 a4 d5 e4 d7 g3 h6 e3 d6 c4 h7 g2 f6 c3 f7 c2 f5 c1Q f6 Nh6 Na3 Be7 f8N Nf5 f7 Qdc7 d8R Rg8 h8R Q7c6 d7 Nd6 R8h6 Qe4 Nb5 Ka6 Qd4 Qh7 Qf6 Rg7 Ne6 Nf5 f8R Qc7 Nd6 b5 Nf3 g1N+ Kd3 e2 Nh4 Nd4+ Ke3 Bb7 Nhf5 e1Q+ Be2 Qd1 Bc4 Nge2 Rg1 Be4 Ra3 Bd3 Rc8 Nc3 d8N Nd7 Nc6 Qa1 Na5 Nb6 Rhh1 Rf7 Neg7 Rb8 Bd5 Ne6 a8R+ Qa7 Rc4 Qh5 Rc6 Bc2 Rfc8 Bf8 Rf1 Rfb7 Rhg1 Rd7 Rc5 Bb1 R8c6 Rbb7 Re8 Rb8 Ra2 Qc7 Raf2 Rb7 Nh6 Bg6 Nhf5 Ka7 Bc4 Na8 Rg3 Rb6 Rc8 Nd8 Bf7 Ne6 Rfg1 Ka6 Re8 Nd4 Re4 Ne6 Ref4 Qh8 Rff1 Qh5 R4f2
2BN1nr1/2N1br2/pb4BB/1qN1rN2/6Kp/2n3NQ/1B2p1N1/q1Rbk3 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 c4 fxe4 h4 d5 cxd5 g5 Ra3 gxh4 Rb3 Nh6 axb5 Bf5 b6 Ng8 b5 Bc8 Rb4 cxb4 Ke2 Kf7 f4 Kf6 g4 h5 d4 e5 f5 e3 Kf3 Kg5 f6 h3 f7 Kh4 d6 h2 d7 e2 b7 e1B b6 b3 g5 b2 g6 a6 g7 Bc3 d5 Nh6 g8B Qe7 d8N Qb4 d6 Qa5 d7 Qc5 Na3 b1Q Nb5 Qa1 Qb3 Rh7 Bd3 Be7 f8B Nf5 Nc7 Ng3 Bfh6 Ne4 Nde6 Qb5 d8N Bd4 Ne2 Rf7+ N6f4 Nd7 b8N Nc3 b7 Bb6 Ng3 Nf8 Nbc6 Bd7 Re1 h1R b8N Be8 Rd1 Re1 Nd4 Bd7 Bg6 e4+ Kg2 e3 Kf3 Bf5 Nd7 Bc2 Bb2 Rb8 Rc1 Bd1+ Kg2 Kg4 Nc5 h4 Ndf5 Ra8 Kh2 Kf3 Kh3 Kf2 Qa3 Re2 Kg4 Ke1 Qb3 Rg7 Be6 Rf7 Nc6 Rd8 Bc8 Re8 Nd8 Rg2+ Kh3 e2 Qe6 Bg5 Qe3 Re5 Kg4 Be7 Qf3 Rf2 Qg2 Rg7 Qh3 Rg8 Nfd5 Rf1 Nde3 Rf3 Nd6 Rf6 Ndf5 Rf7 Ng2+
K1R2B1n/1B2rpBN/Nq1pk1q1/2N5/1r1R1Rb1/nB6/Rr2p1R1/6nr b - - 0 1 illegal: No possible last move
1N1nN3/NN1r1r2/p1B5/4R2R/2K1B1N1/1nn1rbbp/kp1R2B1/B3b2b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 b4 f5 exf5 g5 Ra2 gxh4 Ra3 Bh6 Ra1 Bf8 d4 Bh6 c4 Na6 b5 Bf8 d5 Nb8 Qd2 Qc7 Qb4 cxb4 c5 Qc6 dxc6 Bb7 Ra2 Ba6 Ra1 Bc8 Ke2 Kf7 Kd3 d5 g4 e5 f4 h5 c7 h3 c6 d4 b6 e4+ Kc4 b3 b7 h2 g5 a6 f6 Ke6 f5+ Ke5 g6 d3 g7 h4 f7 e3 f6 e2 Ra2 e1B Na3 d2 Bb2+ Kd6 Nh3 d1R Nb5+ Ke6 Nf2 a3 Nd6 Ra7 Bg2 Ne7 g8B Nd5 Ba1 Nc3 Ne8 Bd6 Bh7 Bg3 f8R Rd7 Rd2 a2 f7 h3 Ng4 Rg8 Bhe4 Rg7 Rg1 h1B Rh8 Rd3 Rh5 Re3 Rf1 Bd7 c8B Rh7 c7 Nc6 b8N Nd8 Bcb7 Bc6 Bd3 Bf3 c8N Rg7 Bc6 Rd7 Na7 Rh7 Bb2 a1N Rff2 Rg7 Rfe2 Rh7 Nef6 Kd6 f8N Rhf7 Ne6 Nc2 Bd5 Nd4 Ba1 b2 Nc5 Nb3 Ba8 Kc7 Ne8+ Kb6 Bg6 Ka5 Nb7+ Ka4 Be4 Ka3 Bc6 Red3 Ree5 Ka2 Be4 Re3 Nbd6 Bd1 Bac6 Bf3 Nb7
2r3Rr/p3qR2/2BBB2n/2N1p1p1/p2n1n1k/1NRn3N/3B1N2/1N1r2bK b - - 0 1 legal: proof: f4 d5 e4 g5 exd5 b5 g4 h6 a4 bxa4 d4 Bf5 c4 Qd6 c5 Qd8 d6 Kd7 c6+ Ke6 d5+ Kf6 Qe2 Bd7 cxd7 Kg7 Qg2 gxf4 g5 Kg6 Qg4 Kg7 g6 Kf6 Qg5+ hxg5 Kf2 c5 Kg2 e5 b4 c4 h4 c3 h5 c2 g7 Be7 b5 Nh6 g8B Qc7 d8R Na6 d7 Rh7 d6 Qa5 b6 Qb4 b7 Qe1 b8B Nc7 Bd2 c1N Nh3 Nb5 Nf2 Bf8 Rh3 f3+ Kh1 Kf5 Bc7 Qe3 Bg2 Rh8 Rc8 f6 d8N Nd4 d7 Nd3 Nb7 Bc5 d8N Kf4 Ra3 f5 Nc6 Rb8 Rh2 Kg3 Nca5 f4 Nb3 Bb6 Re8 Rc8 Bd6 Qe4 N7c5 Qb7 Be6 Qe7 Nd1 f2 Rg8 f1N Bc6 f3 Nf2 Ne3 Rh4 Qd8 Rf4 Ng2 Rf6 Kh4 Rf7 Nhf5 h6 Ngf4 h7 Nh6 Nc1 Qe7 Rc3 Ndf5 N1b3 Nd4 Rgg7 Rhd8 h8N Rf8 Nd1 f2 Rg8 f1R+ Kh2 Rfe8 Nf2 Rd1 Ng6+ Kh5 Nh4 Rf8 Nf3 Rfe8 Ng1 Kh4 Ngh3 Red8 Rgg7 Rh8 Rg8 Nde2 Nd7 Be3 Ndc5 Nd4 Nfe4 Bg1+ Kh1 Qd7 Nef2 Qe8 Nc1 Qe7 N1b3
3B1b1B/rpB1n2R/n2KBB2/6B1/1k2rN1n/3np3/rnRBB3/1Qn5 b - - 0 1 legal: proof: c4 d5 cxd5 g5 h4 gxh4 b4 a5 a4 axb4 a5 Nh6 a6 Ng8 a7 Bg4 Ra4 Be6 Ra1 Bc8 e4 f5 d4 Bd7 d6 Be6 d5 Na6 d7+ Kf7 d6 Bd5 exd5 Nb8 Nc3 Nc6 Ne4 Qb8 axb8B fxe4 Bf4 Na7 Bg5 Nb5 Bc1 Na7 Ke2 h5 Ke3 e5 d8B c5 f4 c4 g4 b3 f5 c3 f6 b2 g5 b1N d7 c2 d6 Ke6 g6 h3 f7 h4 g7 h2 Qh5 Kd5 Bg2 Kc5 Bf1 h3 Be7 Nc6 d8B Nc3 Ba5 Na4 Qh6 Nb4 Bbc7 Nb2 Be2 Ra7 Bf6 Na6 d7 Ne7 Qg6 Rh4 d8B Rf4 Bcd2 c1N g8B Rh4 Ra3 Rg4 Kf2 e3+ Kf3 Re4 Rd3 Kc4 Bac3 Kb3 Bd4+ Kc4 Rc3+ Kb4 Bb5 e2 Bh8 e1R Ne2 Rg1 Nf4 Rg2 Bf1 Rge2 Kg4 Rf2 Kg5 Rfe2 Kf6 Rg2 Ke6 Rge2 Rg1 h1N Kd6 Nf2 Rh1 Nfd3 B4e3 Rf2 Be2 h2 Bf6 Rc4 Bd4 e4 Bh8 e3 Bdf6 Re4 Qf5 Bh6 f8B Bg7 Be6 Bh6 Rg1 h1N Rg7 Ng3 Rh7 Rg2 Bg5 Rh2 Qg6 Rf2 Bfg7 Ngf5+ Kd7 Nh4 B7f6 Bf8 Kd6 Rf1 Nh3 Rf5 Nf4 Ra5 Qf5 Rc4 Qe4 Ra2 Qh1 Re4 Qe1 Nb3 Qb1 Nbc1 Rc2+
R6B/b2bq2q/bRb1r1Rq/1qR1Rq1B/R1QK3n/8/2R1qRN1/n6k b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Ke1 f4 Nc3 h5 Nd5 Ra6 Ne3 Rb6 Qd3 Rf6 Qd1 Rf5 gxf5 Ba3 Ng4 hxg4 Nh3 Bc5 Ng1 Bf8 Kd2 Ke7 Kd3 Kd6 e4 Ke5 b4 d5 h4 g5 c4 a4 f6 a3 b6 a2 c5 f2 f7 g3 h5 f3 b5 g2 h6 g4 c6 g3 c7 Ne7 b7 Nf5 h7 Bd7 c8R Qe7 b6 Na6 b8R Nc5+ Kd2 Kf4 b7 d3 Kc3+ d2 e5 d4+ Kc4 d3 e6 Nh4 Kd5 Nb3 Rb1 a1Q Re8 Qaf6 Ra8 Qf5+ Kc4 Na1 Be2 f1Q b8R f2 Nf3 g1Q Rbc8 g2 Ra4 Kg3 Qb3 d1B Rh2 d2 Bb2 Qh1 Kd4 g1Q Rc5 Bh6 Rec8 Re8 h8R Qh7 Rh3+ Kg2 f8R Qgh2 Qc2 Qb8 Qc4 Qb5 Ne1+ Kg1 Bg4 Bf3 Ng2 Bfc6 Bh5 d1Q+ Rd3 Qde1 Rg3 Qee2 Rg6 Bf4 Rff5 Bb8 Rfe5 Kh2 Rf8 Ba7 Ra8 Kg1 Rc1 Qh3 Rc2 Kh1 Rb8 Qb1 Rb6 f1B Rf2 Qf5 Bc3 Qc1 Bb2 Qch6 Bc3 Rf8 Bb2 Rf6 Bc3 Qef7 e7 Re6 e8R Qe7 Ra8 Bb7 Ne1 Bfg2 Bb2 Bgc6 Ng2 Ba6 Bc1 Q6g7 Bh6 Qgh8 Bg7 Qh6 Bf6 Q8h7 Bh8
Br2B2B/r1R1p2r/3qN1Nn/4k1b1/bB6/N1R4b/4K2p/Nb1N1N1n b - - 0 1 illegal: No possible last move
1Rb2RR1/N5Rq/q2r2rN/r2Bn3/1N3br1/2bnk2K/5pR1/RN1n1B2 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b3 h6 Ba3 Qg5 Be7 Qh5 Bg5 Kd7 Qc1 Qg6 Qc3 Ke8 Qf3 gxf3 g4 Qh7 Be7 Qf5 g5 Qd7 g6 Qd8 Bg5 hxg5 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 b6 c5 b7 a5 g7 f5 d3 a4 b5 a3 d6 g4 h5 a2 d7 c4 e5 c3 h6 c2 e6 c1N h7 Qe7 d8R+ Nd7 b8N Nh6 g8N Ra5 Nh3 g3+ Kg1 g2 Kh2 g1R b6 f2 b7 f3 Nf4 Ke3 d4 Rg6 d5 Ne5 d6 Ncd3 d7 Nhg4+ Kh3 Bh6 Nc6 Bg5 Nh6 Rhg8 h8R Qh7 b8R R8g7 Bg2 f1Q e7 f2 e8B Rd6 Bf7 Rgg6 Rb2 Qe2 Rc2 f1R Rdf8 Rg1 d8R Qf1 Na7 Ngf2+ Kh2 Qe2 Rhg8 Nd1 Bd5 Qf1 Bh3 Rg4 Rg2 Qe2 Rg1 Qf1 Nh5 f4 Nf6 f3 Rde8 f2 Rg7 Bd7 Rb8 Bc8 Bb3 Kd4 Nd5 Be3 Nb4 Bf4+ Rg3 Qe2 Bf1 Ke4 Kh3 Kd4 R3g2 Ke4 Na3 Ke3 Rc1 a1B Bd5 Bb2 Ra1 Bc3 Nb1 Qa2 Rgg8 Qc4 Rg7 Qa6 Rgb7 R4g5+ Rg4 Rge6 R1g2 Rg7 Rbf7 Rg8 Rg5 Rg7 Rg8 Rf6+ Rf5 Rg4 Rfg7 Rfg6 Rff8
R1bnB3/3Br3/2RB2kb/Rr5b/4n1rp/pNbRn3/B3BNq1/2K1B3 b - - 0 1 illegal: No possible last move, all moves rejected
1n3q1k/1q3pNB/N6q/1rbNn3/BR3B2/rB1q3B/N5pK/1R1rbB2 b - - 0 1 legal: proof: d4 e5 b4 a5 h4 axb4 g4 c5 f4 cxd4 fxe5 Ra3 Kf2 Ra7 Ke1 Ra8 h5 b6 h6 Bb7 Qd3 Be4 Qg3 Bg6 Qg2 Bh5 gxh5 Qe7 Qg3 Qd8 Qg6 hxg6 Kf2 d5 Kg2 b5 e4 g5 c4 g4 a4 g5 c5 g3 e6 d3 c6 d2 h7 d1Q a5 b3 e7 b2 h6 g4 c7 b4 c8B d4 a6 b3 e5 d3 a7 d2 Nf3 Qd3 Nh4 Qf5 Nc3 b1R Na2 Qe6 Nf5 b2 Rh4 Qa4 Kh1 d1Q Bf4 g2+ Kh2 Rc1 Rb1 Qec4 Be6 Qc5 Bb3 Qa6 Ng7+ Kd7 e8B+ Ke7 e6 Kf6 e7 Qdd3 Bd7 Rd1 e8B Ne7 Bde6 Ng6 Bea4 Ne5 Bc8 Rg8 h8N Qcd6 h7 g1B+ Kg2 g3 Bh3 Qc8 Ng6 Bf2 h8N Be1 Ne7 Q6a6 Kg1 g2 Nc6 Bc5+ Kh2 Qf8 Ng6 Rh8 Rg4 Rh5 Ncb4 Qb6 Na6 Qc6 Ra1 b1Q Ne7 Qc1 Rh4 Qb7 Nd5+ Kg6 Rb1 Kh7 Bg3 Qh6 Rb4 Rg5 Bf4 Kh8 Bd7 Rg6 Bf5 Rb6 Bh7 Rb5 Ba4 Nbc6 Bb3 Rd8 a8B Nb8 Nf6 Rd4 Nd5 Rc4 Ba4 Rc3 Bb3 Qd7 Bc6 Qb7 Bc2 Ra3 Bb3 Rb6 Bca4 Rb5 Bc1 Qdg6 Bd2 Qd3 Bf4
3K2kr/3b1r1n/Bpb2Bn1/p4B2/1B1N1B2/2B2R2/pN3B1R/B2q1r1q b - - 0 1 legal: proof: b4 f5 e4 d5 exf5 g5 a4 b6 h4 gxh4 c4 Bh6 cxd5 Bg7 b5 Qd7 Bb2 Bh6 Bg7 Qd8 Bf8 Be3 a5 Bc5 Qb3 bxa5 b6 a4 b7 Bb6 Qxb6 cxb6 Ke2 Kf7 Ke3 e5 Ke4 h5 f4 a5 g4 a3 d4 h3 f6 a2 g5 h2 f5 h4 d6 h3 Kd5 e4 d7 e3 Kd6 e2 d5 e1R Ne2 Rh4 Na3 Ne7 g6+ Kg8 f7+ Kh8 g7+ Kh7 g8B+ Kh8 f6 Rh5 Nd4 Re2 Bh7 Na6 b8B Rf2 Bf5 Nc5 Ba6 Rc2 Raf1 Rc3 Nc4 Rd3 Rf3 Rd2 Nb2 Qe8 Kc7 Rc2 d8B Rc1 d6 Qa4 d7 Ng6 Bg7+ Kh7 f8B Kg8 Bde7 Qd1 d8B Ne4+ Bc5 Bd7 Bde7 Rb1 Kd8 Ra7 Bf4 Ng5 Bh8 Rb7 Bfg7 Nh7 Bb4 Ra7 Be1 Rh6 Bf2 Rh4 Bb4 Rh5 Bc3 Rc1 Rg1 h1B Rg5 Rh6 Rh5 h2 Rhh3 Bg2 Rh4 h1Q Rh2 Rh3 Ne6 Nhf8 f7+ Kh7 Bce5 Qdf1 Rc3 Be8 Nc4 Bgc6 Rf3 Re7 Bb2 Bed7 Ba1 Qd3 Bgd4 Rf1 Bhf6 Qd1 Bdc3 Rh5 Nd4 Rh4 B6g5 Kg7 Nb2 Rh8 Bgh4 Nh7+ f8B+ Kg8 Bf6 Rf7 Bfb4
1NNq1b2/R2bn3/2R2R1p/qN6/4QpQR/1n2r1p1/RrRk4/2n2KRn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Nc6 g5 Nb8 Bg2 Ke7 Bh3 Ke8 g6 Nc6 d3 Bb4+ Bd2 Bc3 Bg4 hxg4 h4 Qd6 h5 Qf6 h6 Nb8 h7 Bb4 Bc3 Bf8 Bd4 Qe7 Bf6 Qd7 Bg5 Qd8 Bh6 gxh6 b4 Ke7 e4 Kd6 g7 Ke5 d4+ Kf6 d6 Kg5 d5 c5 d7 a5 b6 f5 b5 a4 d6 a3 b7 a2 e5 f3 b6 Kf4 e6 Ke3 e7 f2+ Kf1 f4 e8Q+ Be7 Na3 c4 Nf3 c3 Nc4+ Ke4 Rh4 c2 Nd4 c1N Nb5 Na6 b8N Nc7 b7 Nd5 Nb6 Ngf6 g8R Ke3 Rg6 g3 Qg4 Rg8 h8R Kd2 Rh7 Bf8 Qe4 Ne7 Rb1 a1N Rb2+ Nc2 Ra2 Ra3 Rf7 Re3 Ra7 Qc7 d8R Nd4 d7 Ndb3 Re8 Qd6 d8R Bd7 Rc8 Qb4 Rc6 Qa5 Nc8 Rg7 Rg5 Rg6 Rgc5 Qd8 Qh3 Ng4 Rff6 Rg5 Rc4 Rc5 Rca4 Rc2 Ra1 Rb2 R1a2 Ne5 Qg4 Ned3 Rh1 Nf5 Re5 Ne7 Reh5 Qa5 R5h4 Qd8 Kg2 Qa5 Rg1 f1Q+ Kh1 Qd1 Kg2 Qc2 Kf1 Nf2 Na6 Qcc3 b8R Qd8 Rba8 Qb4 Nb8 Qba5 Rac7 Nh1 Raa7 Qa3 Rc5 Qa4 R7c6 Qaa5 Rc2+
2QN1NQ1/2b3n1/1rq3r1/2n1BrB1/q2B3B/1k2KQ1Q/1rbr4/1nQ2B2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 f5 b4 d5 e4 g5 exf5 a4 h4 gxh4 c4 a3 cxd5 Bg7 b6 Bxa1 b5 Bg7 Rh3 Bf8 Re3 Ra4 Re6 Ra8 Rg6 Nh6 Rg8 Nxg8 Ke2 Kf7 f4 h5 d4 e5 f6 c5 g5 c4 f5 c3 d6 h3 d5 h4 d7 h2 b7 h1Q b6 a2 d6 a1R Qa4 c2 Nf3 h3 Qf4 h2 Ba3 c1N+ Kd2 e4 Nh4 Ra6 Bb2 R1a2 Qg4 Rh5 Ng6 Qe8 d8B Nh6 d7 Ne2 Qh3 Bd6 Na3 Nc3 Nc2 Bc7 Nd4 e3+ Kd3 e2 Nc6 e1R Be7 Re2 d8B Nd7 b8B Bd6 b7 Rd2+ Ke3 Qg2 Bbc7 h1R b8Q Rg1 Qb6 Be5 Qc5 Nb1 Qc1 Rb6 Bc3 Rab2 Bb8 Kg8 f7+ Kg7 Bd4 Nc5 Bbd6 Ba6 Bb8 Bd3 Bbd6 Bc2 f8Q+ Kh7 Qf6 Kg8 Qh8+ Kf7 f6 Bh2 Bg3 Qd7 Bdc7 Qe8 Bh4 Qa8 Qb8 Qa4 Qbc8 Qd5 Bcd6 Rg4 Bb8 Qd7 Bd8 Ke6 f7 Kd5 f8Q Bg3 B8f6 Bd6 Nd8 Qdc6 Be7 Bh2 Qf6 Rg1 Nf8 Nf5+ Kf3 Rgg2 g6 Be5 g7 Rg6 Nde6 Rhg5 g8Q Ng7 Ke3 Bd6 Qf2 Rf5 Bef6 Bh2 Bf4 Bg3 Bf4g5 Bd6 Bfe5 Bc7 Bg2+ Kc4 Bf1+ Kb4 Qff3 Kb3 Nd8+
1QQ1k2r/2Q3qn/bKb5/NNR1N1Nn/1n2rrN1/3pn3/1bq3Q1/Q3R3 b - - 0 1 illegal: No possible last move, all moves rejected
k5q1/rnr1p3/B1Qn4/3pr1Q1/N1b3Kn/N3BN2/Qb1n2N1/1NQ1Qq2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 h4 h6 b4 Bg7 g4 Bf8 f5 Bb7 Rh2 Ba6 Rf2 Bc8 Rf4 gxf4 g5 h5 Ra3 Qb6 Rg3 Qd8 Rg4 hxg4 Ke2 d5 c4 Kd7 b6 Kc6 g6 g3 Kf3 d3 b7 a6 f7 d2 c5 g2 g7 Bd7 f6 a5 b5+ Kc7 h5 a4 b6+ Kc6 h6 a3 h7 a2 Ba6 a1N Qe1 Nh6 g8Q Nf5 Kg4 Bg7 f8N d1R f7 f3 Be3 f2 Nf3 Rd3 Ng6 Ra7 f8N f1Q Ne6 Nb3 Nc7 Qe8 Qc1 Qg1 Nb5 Rc3 N5a3 Nd2 Nf4 Be5 Qg7 Rf8 Qg5 Nd6+ Kg3 Rf5 h8Q Qg8 Qh4 Qh1 Kg4 Qf1 Qg3 Be8 Qge1 Nd7 b8Q Bd4 b7 Re5 Qa8 Bg6 Qb8 Bd3 Qe8 Kc7 c6 Nc5 b8N Ncb7 Qb2 Rc1 Qa2 Bb2 Nd7 Be2 Nc5 g1N Ng2 Bb5 Nfh4 Ngf3 Na4 Bd3 Qd7+ Kb8 c7+ Ka8 Qb5 Rc6 Qbc4 Be2 Qcc1 Bd3 Bf2 Bc4 Be3 Nd4 Nf3 N4f5 Nb5 Nh4 N5a3 Qb8 c8Q Rc5 Qc6 Qg8 Qb5 Rc7 Qc6
3R1R2/B2p2r1/1n2k1b1/2p1qBQb/1QR3nB/2n5/1K1prB1B/Q3b2Q b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 c5 d4 cxd4 h4 f5 exf5 Nf6 hxg5 Ng4 b6 Nf6 b7 Na6 b8B Ng8 c4 Qc7 b4 Qb6 c5 Qd8 b5 Nb4 b6 Nf6 b7 Nh5 c6 Kf7 Nc3 Ke8 Ne4 Na6 Nc5 Nf6 Nh3 Ng8 Nf4 Nf6 Nd5 Ng8 Nb6 axb6 Ke2 bxc5 Kd2 Qc7 Ke1 Qd8 f4 Kf7 Kd2 e5 Kc2 h5 g4 e4 g6+ Ke7 g5 d3+ Kb2 e3 g7 e2 f6+ Ke6 f7 e1N c7 h4 g6 h3 Ba7 h2 b8B Nh6 g8Q Nc2 g7 Nab4 Ra4 Qh4 Bh3+ Ng4 Be3 d2 Qa1 Na3 Qh7 Na2 g8Q Ba6 c8Q Nc3 Qb7 Qe7 Qg5 Rg8 Qb4 Be2 Bf2 Rg7 Rg1 h1B f5+ Kd5 f6+ Ke6 Qhh6 Be4 Bh2 Bg6 Rc1 Qe8 Qh7 Be7 f8R Qb8 f7 Qe5 Rf1 Rc8 Rd8 Rc6 f8B Nc4+ Kb3 Nb6 Kb2 Bf6 Be7 Rd6 Qhh5 Rd3 Qhh6 Re3 Qh7 Be8 Qhe4 Bg6 Qh1 Bd1 Qbe4 Re1 Rc4 Re2 Qb7 Nbd5 Qb4 Nb6 Qh5 Bh4 Bg5 Bg3 Bh4 Rf7 Qg5 Rg7 Be3 Be1 Rff8 Bdc2 Bef2 Bh5 Bg2 Bf5 Be4 Bfg6 Bf5+
q2B1R1k/1Bb1bbR1/3QpB1B/pp4r1/2b1pB1Q/5Q2/1K6/Q2q1n1R b - - 0 1 illegal: No possible last move, all moves rejected
1r2nq2/Q1b1nQ1q/n6b/nR3RN1/kN1b3Q/2NK1bR1/3R3q/3r2NR b - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 g5 a4 b5 axb5 e4 b3 e3 Qc2 exf2+ Kd1 Ba3 Bh3 Be7 Ba3 Bb4 Kc1 Bf8 Qd1 h6 Bd6 h5 Bf4 gxf4 g5 Na6 Bf5 Nb8 Bg4 hxg4 Kc2 Kd7 d4 f1Q e4 c5 h4 f5 b6 a5 e5 f3 d6 Kc6 d7 Kb5 b7 f2 h5 c4 h6 g3 b4 a4 g6 g2 d5 c3 h7 f4 d6 a3 e6 f3 e7 a2 e8Q Nf6 g7 Na6 b8Q+ Bb7 g8N Ka4 b5 Qd3+ Kc1+ c2 b6 f1Q Qa7 f2 Qde1 Qb8 Ne7 Bf3 Qf7 Ne8 d8N Bh6+ Kb2 c1N d7 Nb3 b7 Qg3 b8R Na5 Nec6 Qh2 Rb5 Rb8 Nb4 Rf8 h8R Qh7 Kc3 Rg8 Ne2 g1B Ne6 Rg6 Ng5 Rd6 d8R Rd5 Na3 Rd1 Rb1 a1B+ Rb2 Qfh3 Rd2 f1N Rg8 Ne3 Rf5 Qf1 Kd3 Nd5 Qh4 Bd4 Nb1 Ne7 Rb3 Qff2 Ng1 Be5 Rg6 Bc7 Rb6 Bd4 Rb5 Bb7 Kc2 Qff4 Rg3 Bf3 Kd3 Qd6 Qa8 Qf6 Qb7 Qfg7 Qa7 Qf8 Nc3+
4r1n1/b3q3/1b1qqQrq/QRRp1B1Q/2R1p1Q1/6QQ/K1bR3n/2Nk4 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 f4 Qb6 g4 Qc7 f5 Qd8 Bf4 h6 Nd2 gxf4 Ne4 h5 g5 Qc7 Nf2 Qd8 Ng4 hxg4 Kd2 Kf7 Kc1 a5 Kb1 e5 c4 d5 h4 d3 b4 a4 b6 g3 c5 d2 c6 a3 h5 g2 g6+ Ke8 f7+ Ke7 h6 Kd6 c7 e4 b5 Ke5 g7 Kd4 h7 Ke3 b7 f3 b6 f2 f6 Qe7 Qh5 d1Q+ Ka2 Kd2 Rh2 Qe1 Rc1 Nc6 b8Q Ra6 b7 Nd4 Rc5 Qe3 Ne2 g1B Nc1 Qh6 Bh3 Nf3 Bf5 Bd7 c8R Kd1 Qg3 f1Q b8R Qh3 Re2 Ba4 Rbb5 Bc2 Rc4 Bb6 R8c5 Qd6 Qgg4 Be7 f8Q Nh2 f7 Bg5 Qe8 Be3 f8Q Qh4 Qa8 Qhe7 Qf6 Ba7 Ka1 a2 Qd8 Qde6 Qa5 Rd6 Rc6 Beb6 R6c5 Bd3 Kb2 a1Q+ Kb3 Qae5 Ka2 Bc2 Qhh3 Rc6 Qhh5 Qe8 Qg3 Q5d6 Qgg4 Ne7 g8Q Q8f7 Q8g6 Re8 h8Q Ng8 Qg3 Qb7 Q6g4 Qbe7 Qhh3 Qe3 Q8h4 Qh6 Qhh5 Qb8 Qhg6 Qec8 Q6h5 Qbe5 Qfg5 Rg6 Qg5h4 Q5d6 Qf6 Qce6 Rd2+
r1bnQ1r1/1bNQNR2/1qNK4/2pBp3/7k/2NNr1rn/b2Q1b2/Q5N1 b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 d6 e5 d4 f6 b4 Kf7 e4 Na6 d5 Ke8 Be3 Nb8 Bd4 Qe7 Ra3 Qd7 Re3 exd4 e5 Qe7 e6 Qd8 Re5 fxe5 Ke2 h5 Kd3 c5 Ke4 a5 f4 h3 g4 d3 f5 h4 b6 a4 b5 d2 d7+ Ke7 b7 Kf6 e7 Kg5 e8N h2 b6 a3 d6 h3 Kd5 a2 f6 a1R f7 Kh4 g5 Qe7 d8Q R1a7 g6 Qg5 g7 Be7 f8N Qg6 d7 Ra3 Ne6 Nh6 g8N Re3 N8c7 Nc6 b8Q Nf7 b7 Ng5 Nf4 Qf6 Qa4 d1B Nc3 Bb3+ Bc4 Ba2 Nd3 Qg6 Qe8 Nd8 Qba7 Qb6 b8N Bf6 Ne7 Rg8 Nbc6 Rg3 Nge2 Re3 Rb1 h1B+ Kd6 h2 Rf1 Nh3 Ng1 Bd5 Qc2 h1R Qd2 Rh2 Rf3 Rhg2 Bb3 Bg5 Rf7 Bf4 Qa3 Bg3 Qab2 Be1 Qa1 R2g3 Bc4 Bg2 Be6 Bf2 Bd5 Ne6 d8Q Be4 Qdd7 Nd8 Qf1 Ra4 Be6 Ba6 Qa1 Bc8 Bc4 Ra8 Bb3 Qb5 Na7 Beb7 Nac6 Qb6 Bd5
5B2/kBB1Q1r1/2p2Q1Q/pb1q3n/rb2n3/2pB2Qq/3NK3/qNQ2n1N b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 g5 f4 d5 a4 dxc4 axb5 Be6 f6 Bc8 b4 h6 g4 Rh7 h4 Rh8 f5 Bb7 Rh3 Ba6 Rf3 Bc8 Rf4 gxf4 g5 h5 Ra3 Qd4 Rg3 Qd8 Rg4 hxg4 d4 Kd7 g6 e5 h5 a5 f7 c3 b6 Kc6 g7 Kb7 b5 g3 h6 e4 d5 e3 f6 e2 h7 f3 d6 g2 d7 Qe8 d8Q Be6 Nh3 g1Q Nf2 Ra6 Nh1 Qd7 Bf4 Qh2 Qe7 Ka8 b7+ Ka7 Qc1 Nc6 b8N Qd5 Nd7 Nb4 Ne5 Bd7 Nc4 Qh3 Ncd2 Bc6 Kf2 Nd3+ Ke3 Nc5 b6+ Ka8 b7+ Ka7 Be5 e1Q+ Be2 Qd1 Bd3 f2+ Bg3 Qa4 Ke2 f1N Bf4 Bb5 Bg3 Nh6 g8B Ne4 Be5 Rc6 Bh2 Nf5 b8Q+ Ka6 Bf4 Ng7 Bh2 Nh5 Bd6 Bg7 f8Q Rc4 f7 Qa1 Qfd8 Bh6 f8B Ra4 Bf7 Rg8 h8Q Bg5 Qh6 Rg7 Be6 c6 Bc7 Be3 Qdd6 Ba7 Qbd8 Bc5 Bc8+ Ka7 Bb7 Bb4 Qg3 Bc5 Qdd6 Bb4 Qdf6
Q1N2nQK/bpn1q2Q/p3QQ2/1kQ5/nr2q3/1bQB4/q1QN3q/r4R2 b - - 0 1 illegal: No possible last move
n2QR3/1rNb2p1/1kR3r1/5N1R/1KbR2nN/1Q3qqR/4R1nr/n3N3 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 a4 b5 axb5 d5 cxd5 Na6 b6 Qg5 b5 Nb8 Ba3 Qd8 g3 h5 Bc5 f5 Nh3 f3 Bb4 axb4 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qa4 f2+ Kd1 f3 Kc1 Ra5 Qd1 Bf4 gxf4 Ra8 Kb2 Kd7 Kb3 f1N h4 c5 e4 f2 d4 g3 e5 g2 e6+ Kd6 b7 Kc7 h5 Ra6 e7 Qd7 e8N+ Kb6 f5 Qf7 h6 Qf6 h7 Ra8 d6 Qh6 f6 Qe3+ Nc3 Qe1 d5 Ne7 f7 Ng8 f8N Na6 b8R+ Ka7 d7 Nf6 d8Q Ng4 d6 Qe3 d7 Qf3 Rh5 Nfe3 Ne4 f1B Rc1 Nc7 N4d6 c4+ Ka4 c3 b6+ Ka6 b7 c2 Ng6 b3 Kb4 b2 Nh4 Bc4 Ndf5 Kb6 Qd3 b1R+ Qb3 Ra3 Re1 c1N Re2 Ra6 Ra8 Ra7 b8R+ Rb7 Ra5 Ra1 Rc5 Ra6 Qe7 Na8 d8R Bd7 Nc7 Be8 Rd4 Bd7 Qa2 Nb3 Qd8 Na1 Qb3 Qe4 Ngf3 g1Q Ne1 Qf3 Rc8 Qgg3 Rb8 Ng2 Rc8 Re8 h8R Re6 Qe7 Rg6 Rce8 Ra3 Qd8 Ra2 Rc2 Ra3 R5h7 Qe2 Nhf3 Nf4 Rh3 Ra2 N3h4 Qef3 Rh5 Rb2 Rce2 Rc2 R2e7 Rh2 Re2 Ng2 Rc6+
2N3Rn/1nR2rp1/3R2bR/nk3pR1/2qR3N/7r/4R1rr/bKBr1N1R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e6 cxd5 Qe7 f5 Qd8 e4 Nd7 e5 Ba3 b6 Nb8 Bd3 Bd6 f6 Kd7 Bf5 Bf8 Qe2 exf5 e6+ Ke8 e7 Kd7 Qe6+ fxe6 Kd1 a5 Kc2 c5 e8R a4 b4 c4 h4 g3 d4 a3 b5 c3 d6 g2 f7 a2 d5 e5 h5 e4 b7 e3 b6 e2 h6 e1N+ Kb3 c2 Kb2 Ra7 h7 Nh6 Re2 Qh4 Nf3 g1R Nbd2 Rg2 Nf1 Qc4 Nh4 Be7 f8R Nf7 Rg8 Nc6 b8R Na5 b7 Bg5 Rb1 a1R Ra8 Ra3 b8R Rh3 Rb4 Qe4 Rd4 Bf6 Ka1 Bb7 Rac8 Bc6 Rb3 Qf4 Rg3 Nd3 Rg5 Nc5 Kb2 Bb5 Rc6 Ncb7 Rcc8 Ra8 Rc4 Rf8 Rc7+ Kd8 Ka2 Be8 d7 Qe4 Kb2 Ke7 d8N+ Kd6 Nc6 Kc5 d6 Kb5 d7 Be5 Bd2 c1R d8R Rd1 Bc1 Qd3 Ka2 Qc4+ Kb1 Rhh2 R4d6 Ba1 Na7+ Ka4 Rd4 Kb4 Nc8 Kb5 R8d7 Nfd8 R7d6 Bg6 Nf3 Nf7 N1d2 Re8 Nf1 Re3 Rgd8 Rf8 h8R Red3 Rh7 Nh8 Rh6 Rf7 Nh4 Rdh3 Rg8
1nB1QN2/rp1Q4/1p2rn2/3p4/1Nr2b2/NQrBbr2/3N1B2/K1kB2Q1 b - - 0 1 legal: proof: d4 c5 dxc5 Nh6 b4 Qa5 e4 Qd8 b5 Ng8 b6 axb6 e5 Ra5 Bf4 Ra4 Bc1 Ra8 f3 d5 Qe2 Qd6 exd6 e5 Nh3 e4 Qd2 e3 Qd1 Bf5 Ng1 Be4 fxe4 g5 a4 Ne7 Ra3 Bg7 Rd3 Bf8 Rd2 Ng8 Re2 Ra5 Rf2 Ra8 h4 Nd7 g4 Nb8 Rf4 gxf4 g5 h5 Rh2 Kd7 Rg2 Ke8 Rg4 hxg4 c4 Kd7 g6 Kc6 g7 f5 e5 f3 a5 e2 Kd2 e1R Kc2 f4 Kb2 g3 h5 g2 a6 f2 d7 f3 d8Q Bd6 a7 Nf6 g8Q Nbd7 h6 Be7 h7 Re2+ Ka1 Re1 e6 Ne5 Qb3 Nfd7 Na3 Ng6 Bd3 Re2 Be3 Bd6 e7 Nf4 e8Q Nh5 Bd4 Rc8 a8N Re6 Nc7 Nf6 Na6 Bf4 Qgg6 Rg8 h8N Rc7 Qg3 Rg4 Ng6 f1R+ Qe1 f2 Nf3 g1B Nf8 Rg3 Nd2 Rf3 Qeb1 Rc1 Qde7 f1R Bf2 Rc8 Qh7 Rc3 Nb4+ Kc7 c6 Kd6 c7 Ke5 c5 Nb8 c6 Re1 Bh4 Kd4 Qhd7 Bge3 Bg3 Rec1 Bf2 Rd8 c8B Rc4 Qdf7 R1c3 Bd7 Rc8 c7 Rd8 Qg1 Rc8 Na2 Ra4 Nb4 Ra7 Ba4 Rc4 Qa2 Kc3 Qh7 Rd8 c8B Rdd6 Qhd7 Rdc6 Bd1 Rc7 Nb3 R7c5 Na5 Rc7 Qb1 Kd2 Qb3 Rc3 N5c4+ Kc1 Nd2 R7c6 Qed8 R6c4 Q8e8
3B3Q/bB2r1R1/4b1b1/RQ1qQbn1/Rn2p2r/5r1B/Q5Rb/2K1Bk1n b - - 0 1 legal: proof: d4 b5 c4 e5 a4 g5 axb5 d5 cxd5 Na6 h4 gxh4 d6 Nb8 e4 Nc6 d5 Nb8 Ne2 f6 Nd4 exd4 e5 f5 Nd2 Bg7 Ne4 fxe4 Ra2 Bh6 Ra1 Bf8 Kd2 Kd7 g4 h5 f4 a5 b4 c5 g5 d3 b6 h3 f5 a4 g6 c4 b5 h4 b7 h2 f6 a3 b6 c3+ Ke3 d2 f7 a2 g7 c2 Bg2 h3 Qe1 d1B Kd2 Ra7 Rf1 h1B Rf5 h2 Qh4 Nf6 g8R Nh7 Bh3 Na6 b8Q Nb4 b7 Bg4 Qf2 Bhf3 Rg7 h1N Qe2 Be7 f8R Ng5 Rfg8 Rh4 Ba3 Bh5 Kc1 Bfg4 Bb2 Ra3 Bc3 Bg6 Be1 Rf3 Qa8 Qa5 b8Q Qc5 Qeb5+ Qc6 Rb1 a1B Qa2 Bd4 Rb3 Ba7 Ra3 Rh6 Ra4 Rh4 Rf4 Be6 Rf5 Nh7 Rg5 Bef5 Rg2 Ng5 Rh8 Be6 Rh5 Bef5 Kb2 c1R e6+ Kd8 d7 Bd6 Rg3 Rc5 Rg2 Bh2 Qe5 Qd6 e7+ Kc7 e8B Be6 Qf1 Kb6 d8Q+ Rc7 Bc6 Kc5 Bb7 Re7 Kc1 Qc6 d6+ Qd5 d7 Bef5 Qb8 Kd4 Qh8 Ke3 d8B Bcd7 Qb5 Bde6 Rg4 Nf2 Qe5 Nh1 Bd2+ Kf2 Rg3 Rd3 Rg2+ Kf1 Be1 Qd4 Bc8 Nf3 Qbd5 Bg4 Qf6 Re3 Re5 B4f5 Bb7 Ng5 Qdc4+ Rd3 Rea5 Qd5 Qc5 Rb3 Qe5 Rf3 Qb5+
3b1n1k/1np1r1Q1/q4RQ1/pQQ2Q2/2N1qQK1/p1Qr4/1q1Qr1N1/5N2 b - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 Nf6 e4 Ng8 exf5 Bd7 Qf3 Be6 Qd1 Bc8 b4 Nh6 b5 Be6 b6 Bd7 Ra2 Bb5 axb5 Ng8 Ra5 Nh6 Ra6 Ng8 g4 bxa6 f4 g5 f6 Bg7 Bh3 Bh6 Bb2 Bf8 f5 h6 Be5 h5 Bf4 gxf4 g5 Qd6 Bg4 hxg4 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 h4 e5 d4 e4 g6+ Ke8 h5 e3 h6 g3 Kf3 g2 b7 a5 g7 Kf7 h7 a6 d6 e2 d5 e1Q b6 a4 d7 a5 d6 a3 Nd2 Nc6 b8Q Na7 b7 Qe6 Qa4 Qe1 Kg4 f3 Ne2 g1R+ Ng3 f2 Qf4 f1Q Rh6 Qc4 Qc8 Qde7 d8Q Qd3 b8Q Qef1 d7 Rh1 Nc4 Rh2 Qb5 Qfb1 Nf1 Rb2 Qca6 Qee1 Qac6 Qbc2 Qcc5 Qee4 Qc8 Qd6 d8Q Qa6 Qd2 Ne7 Qcd7 Rg8 h8Q Nc6 Q7d3 Qb3 Qh7 Qa2 Q3c3 Rd8 Rg6 Rh8 g8N+ Bg7 Nh6+ Kf8 f7 Rd3 Rf6 Nd8 Qg6 Nb7 Kh4 Rg8 Ng4 Rc2 Kh5 Qb2 Nge3 Bh8 Ng2 Rg7 Kg4 Rh7 Qh5 Kg7 Qg5+ Ng6 Qh5 Rh6 f8Q+ Kh7 Qfe8 Nf8 Qef7+ Bg7 Qg5 Kh8 Qgg6 Rh7 Qfe8 Rc1 Rb6 Re1 f6 Re2 f7 Bf6 Qee5 Nd7 Qef5 Rg7 Rc6 Be7 Rf6 Bd8 f8Q+ Rg8 Qf7 Rg7 Q7d5 Re7 Qdf7 Nf8 Qfg7+
1nk2QB1/q4N2/1P2b1r1/1Rq2BR1/5n2/1n2rqQQ/R1n1Np1K/Bb6 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 b4 c5 d4 a5 h4 axb4 Qa4 c4 Qd1 Bc5 dxc5 gxh4 Kf2 Kd7 e4 f5 g4 h5 Kg2 b3 d6 h3+ Kh2 f3 g5 c3 g6 f2 e5 h4 b6 b2 g7 c2 Ra7+ Qc7 Ra5 f4 Qd3 f3 Rb5 Ra3 Nd2 b1B Ne2 Ne7 g8B Rh6 Bb2 c1N Ne4 Qa7 Ba1 Ng6 Ng5 Nf4 Nf7 Nb3 Rg1 Re6 Rg5 Rg6 Kh1 h2 Bh3+ Ne6 Qc3 f1N Bf5 f2 Qg3 Ne3 c6+ Ke8 c7 Kd7 Be4 Nc2 Bd3 Nf4 e6+ Kc6 e7 Kb7 e8R Be6 Re7 Kc8 Rd7 Nc5 Be4 Re3 Bf5 Nb3 Re7 Bd7 Re4 Be6 Ra4 Nd5 Kg2 h3+ Kf1 Nf4 d7+ Kb7 d8Q h1Q+ Ng1 h2 Ra2 Qc6 Qf8 h1Q c8Q+ Ka8 Qd7 Qc5 Qd3 Qh5 Ne2 Kb7 Qc3 Nd3 Kg2 Qf3+ Kh2 Nf4 Qe7+ Kc8 Qh8 Qcd5 Qhh3 Qc5 Qf8+
N1K1BB2/2R1qr1N/P3r3/6n1/1Qqr2Rr/1Q1nkN2/R4pn1/4Qb1b b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 g4 exf4 c5 h5 gxh5 b3 d4 d6 d5 c6 dxc6 d5 c7 Bxc5 Nh3 Bg1 Nxg1 d4 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 f5 h4 g5 a4 b5 e4 d3 a5 g4 h6 f3 h7 d2 a6 g3 h5 f2 h6 g2 Rh5 b4 Ne2 g1Q Nf4 b2 Ng6 b3 Ra2 f4 Bc4 f1B Qe1 d1N Rg5 f3 Bf7 f2 Be8 Nd7+ Ke6+ Kd4 e5 Ra7 Nd2 b1R Ba3 b2 Nf8 Bb7 c8R Bh1 Rc7 Ngf6 Rg4+ Ne4 Nf3+ Kd3 Be7 Ng5+ Kd6 Rb7 e6 Ne3 Kc6 Qc8 Bb4 Nc5 e7 Rd1 Ba3 Rg8 h8Q b1R h7 R1b4 Qb2 Ng2 h8Q Rg6+ Qhf6 Qh2 Nh7 Qe5 Qe6 Rf4 Qeb4 Ke3 Qb1 Ra7 Q1b3+ Nd3 Kb6 Rh6 Kc6 Qe4+ Kd6 Qb7 Kd7 Rg6 Qe5 Re6 Kd8 Qc6 Kc8 Qc2 Qea5 Qe2 Qe1 Qc4 Qab4 Rf7 Bb2 Rb7 Bg7 Rbb6 Bf8 Rh6 Ba4 Rh4 e8N Rbf6 Rc5 Rd2 Nc7 Re6 Be8 Rd1 Na8 Rd2 Qeb1 Rd1 Rc7 Qe1 Qb8 Qeb4 Qb5 Qe7 Q5b4 Rd2 Q3b2 Nde1 Q1a1 Rd4 Q2b3+ Nd3 Qae1+
1R1r1N2/2Qn2kP/3pQ1q1/RRqq3n/5b1Q/NB1r1qn1/6N1/KB4b1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 e4 b5 a4 f5 exf5 c5 d4 b4 a6 cxd4 Bf4 Bb7 Be5 Bc6 Bd6 Bb5 axb5 Rh6 b6 Rh8 Be5 Nc6 Bb8 Nxb8 Kd2 Kf7 Kc1 e5 Kb2 g5 f4 e4 h4 g3 c4 d6 c5 e3 c6 e2 a7 e1N f6 g4 c7 b3 c8Q g2 h5 d3 b7 g3 f5 d2 h6 Ne7 h7 Qb6 Na3 Qb5 Nf3 g1B Nh4 g2 Bd3 Nd7 b8Q Bh6 Qbc7 Qd5 Qg4 d1Q Bb1 Rd8 Qg5 Rb8 a8B Q1f3 Ra2 Kf8 f7 Nd3+ Ka1 Nf4 Qh5 Kg7 f8R Bg5 Qg4 Nh5 f6+ Kh6 f7 Nf5 Bc6 Bf4 Ba4 Nfg3 Re8 Rb4 f8N Rd4 Re5 Rd3 Rh2 Qc6 Rb5 Qcd5 Qe6+ Kg7 Qc4 Bf2 Q8c7 g1Q Ng2 Qc1 Qb4 Bg1 Rh4 Qcc5 Qbe1 Bh6 Rhb4 Bd2 Rb8 Bf4 R4b5 Nf1 Qh4 Nfg3 Bc2 b2+ Kb1 Bd4 Bab3 Bg1 Ra1 Qf5 Ka2 Qf5d5 Bb1 Nf6 Nc4 Re3 Bd3 Nfh5 Kb1 Bh6 Raa5 Bf4 Kc2 b1Q+ Kc3 Qe1+ Kb2 Qee2+ Bdc2 Qed3 Na3 Qg6 Ka1 Rd3 Bb1
1N5r/qQ1K3R/3Q2q1/2r1kB1b/P2bNN1r/3R1rr1/p2Rr1B1/Q1r5 b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 c4 gxh4 Ba3 d5 cxd5 Nc6 Bb2 Na5 Bc1 Nb3 axb3 a5 Kf2 a4 Nf3 a3 Ke1 Nf6 Ng1 Ne4 Rh3 Nc3 Rh2 Rg8 Rh1 Rh8 Bb2 Na4 bxa4 b6 Bd4 Ba6 Be3 Bc8 Bc5 bxc5 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 f5+ Kd3 f3 Kc4 f4 Kb5 f2 e4 c4 g4 c5 g5 c3 g6 f3 g7 c4 g8Q a2 Qh7 c2 Nh3 c1R Qb7 c3 Nf4 c2 Bg2 f1R Nc3 f2 Rh3 Qe7 Rd3 h3 Rb1 Qc7 e5+ Ke7 e6 Kd6 e7 h4 e8B h2 Rb3 h1Q Bg6 h3 Bf5 h2 Qe1 Bg7 Ne4+ Ke7 Rd2 Rg1 Rbd3 f1R d6+ Kf7 d5 Bd4 d7 Rf3 d8Q Rb8 Qb6 Qa7 Kc6 Be6 Qd6 Rbe8 b5 Bc8 Ng3 Re2 Qb7+ Bd7+ Kc7 Be8 b6 Kg7 Ne4 Bh5 Kd7 Kf7 Bgh3 Rgg3 Bg2 Qg1 Qd1 h1R Qe1 Rb1 Qd1 Rb5 Qa1 c1R Bgh3 Bb2 Qc6 Rg5 Kc7 Rb1 d6 Bd4 d7 Rff1 d8R Rbd1 Qd6 Rf3 Rc8 Qg4 Bg2 Rh4 Rg8 Ra5 Rg6 Rdf1 Rh6 Rg7 Rh7 Rc5+ Kd7 Rg1 Qbc7 Rgc1 b7 Qg5 b8N Qf6 Rh6 Rgg3 Nc3 Qg6 Qb7 Kg7 Ne6+ Kf7 Rh7+ Kf6 Nf4+ Re6 Qdc7 Re2 Qcc6+ Ke5 Ne4 Qa5 Qcb6 Qa7 Qd6+
b1b1K2n/B5R1/1N2N1pB/rQ4R1/B4k2/b1r2Ppq/Q3b1Rb/n2N4 b - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 h5 g4 hxg4 c4 a5 cxd5 axb4 axb5 c6 Bh3 cxb5 Bf1 Bb7 Bg2 Ba6 Bf1 Bc8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 g6 h4+ Kh6 d4+ Kh5 f3 e6 f6 g3 d6 b3 d5 b4 f7 b2 d7 b3 d6 Bb7 Ra7 Bd5 Qe2 Na6 Rh2 Nb4 Nh3 Nc2 Nc3 b1B Be3 b2 Nd1 Qc8 d8Q Na1 d7 Nh6 Kf6 e5 Qa5 e4 d8N Bd3 Qa2 b1B Rg2 Ba3 f8B Nf7 Bec5 e3 Ke7 Rh7 Ke8 Bf5 Rc7 Ra5 Ba7 Bbd3 Rc5 Rg7 Nf4+ Kh6 h5 Kg5 h6 Ba8 Qeb2 e2 h7 e1B h8R Bf2 Nd5 Bg1 Rg8 Nh8 Nb6 Bh2 Be2 Ba6 Bb5 Kf4 Ba4 Be2 Qb5 Rc7 Bg7 Bh3 Rg5 Rc3 Bh6 Qg4 Rg7 Qh4 Nf2 Bc8 Nd1 Qh3 Ne6+
1b2Q3/nR1KN3/2rR2Qp/2P5/n1N4Q/1pr1b1qB/1bbB2R1/2n1kB2 b - - 0 1 illegal: No possible last move
1n4K1/PRR1p1n1/Q2B1B2/1n6/4NnBp/1k1N2r1/nR3n2/2rNn1Qr b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 c4 fxe4 Be3 b5 Qd3 b3 Bc1 b4 Qd2 Qb6 Qd1 Qb5 cxb5 Ra6 Nd2 Ra3 Nb1 Ra8 f4 g6 h3 Nc6 g3 Bh6 f5 Bf4 gxf4 Nb8 Bd3 g5 Qf3 g4 Qe3 g3 Qe2 Bb7 Qc2 Bd5 Bf1 Bf7 Qd3 Bh5 Qd1 Bg4 hxg4 Ra4 Be2 Ra3 Bf1 Ra8 Ke2 Kf7 a4 h5 a5 d5 b6 d3+ Ke3 g2 Kd4 e3 Ke5 e2 f6 e1R+ Ne2 g1N a6 d4 g5 b2 a7 h4 g6+ Ke8 Ke6 b3 g7 d2 f5 d3 b7 Nh6 g8N Nh3 Nc3 b1N Ra2 Na3 Rb2 Nc2 f7+ Kf8 Nf6 Rg8 Rh2 Rg3 Nfe4 Kg7 Bg2 Rh1 f8R Ne1 f6+ Kg6 f7 Nf5 Rc2 b2 Bf3 b1N Bg4 Na3 Bb2 Nb5 Nf4+ Kg7 Qa1 d1N Qa6 d2 Nd3 Ndf2 Nd1+ Kg6 Bf6 Nf4+ Ke5 Ng7 Rc7 Rf3 Re8 Re3 f8Q Rg3 Qh8 Kf7 Rd8 Neg2 Rdd7 Ne1 Ne3 d1N Qg8+ Kg6 Rg2 Ndc3 Nd1 Na2 Rh2 N2h3 Rb2 Nf2 Qh8 Kf7 Qh6 N4h3 Qe3 Nf4 Qeb6 Ngh5 Kf5 Ng7+ Kg5 Nc6 Kh6 Rc8 Kh7 Nb8 Rc3 Rc7 Rcb3 Rc1 Rc7 N2h3 Qg1 Nf2 Be2 Nd6 Rb4 Ke6 Bg4+ Kd5 Rb6 Nb5 Kg8 Nc6 b8B Kc4 Rc2+ Kb3 Rcb7 N2h3 Bd6 Nb8 Rbc7 Nf2 Rbb7 Nb4 Rd2 Na2 Rb2#
2b5/q1n3K1/2Q4R/4Bb2/PQ1Nr1QB/q3p2p/B3nRpR/2N1k1bb b - - 0 1 legal: proof: d4 a5 e4 d5 b4 f5 exf5 axb4 c4 c5 cxd5 cxd4 g4 b5 f4 Qd6 f6 Be6 f5 Qxh2 g5 Bc8 f7+ Kd7 Bg2 Ra6 Bf1 Rf6 gxf6 Ba6 Nf3 Bb7 Ng1 Bc8 a4 Kd6 Nc3 Kc5 d6 h5 d7 e5 d8Q g5 Nce2 Kc4 Kd2 g4 Ra2 g3 Kc2 e4 Qe7 h4 Bf4 d3+ Kd2 h3 Ke3 b3 Ra3 b4 Nd4 Kc3 Bh6 d2 Kf4 Qf2+ Kg5 Na6 Kg6 Nc7 Bg5 Rh4 Be2 Nh6 Ra2 b2 Qe6 b1B Qc6+ Bc5 f8B b3 f7 b2 f6 Nf5 Bc4 Qf3 Qe2 d1Q Bd6 Qe1 f8R Qef2 f7 Qd3 Ne6 Nd4 Qg4 Ne2 Kg7 Qde3 Nd4 Kd2 Rh2 Ke1 Bdf4 Qa3 Be5 Bd3 Bd5 b1B Rh8 Bda6 f8Q Bab7 Rh6 Bb6 Nf5 Qfc5 Bc4 Qa5 Bb3 Qa7 Nd4 Qb4 Qb5 Nf4 Qe6 Bc2 Nc6 Ba8 Ne2 Qa3 Nc1 Bg1 Nd4 e3 Bgf6 Bce4 Raf2 Ne2 Ba2 Bd3 Be7 Bh1 Qbc6 g2 Bg5 Rf4 Qg4 Bdf5 Bh4 Re4 Qb4+
3qB1R1/3Rp2Q/rn1P4/rr2r1p1/2QN1B2/2Kp4/kBQ1Nb2/2qR3r b - - 0 1 legal: proof: b4 b5 c4 h5 e4 f5 g4 hxg4 a3 fxe4 a4 a5 axb5 axb4 d3 c5 Ra7 d5 Ra1 Bb7 Qc2 d4 Qd1 Bd5 cxd5 c4 Kd2 c3+ Ke1 Nd7 Ne2 Ne5 Ng1 Nc4 dxc4 Ra3 Qb3 Ra2 Qd1 Ra8 h4 Kd7 f4 Kd6 h5 Kc5 h6 g5 b6 c2 Kd2 g3 h7 g2 b7 b3 b8B Kb4 f5 b2 f6 Kb3 c5 Ra7 c6 Ra2 c7 Ra8 c8Q Ra5 f7 Bg7 f8R Nf6 Rg8 Nd7 Na3 b1R Ne2 g1R Bb2 Nb6 Bf4 e3+ Kd3 Rg3 d6 Rh3 Qd2 c1Q Nc2 Be5 Rg1 Rh1 Bg2 Bg7 Rd1 Ra6 Ra5 Be5 Rb5+ Ka2 Bc6 Ra5 Be8 Bg7 Ke4 d3 Ncd4 Bf6 Qdc2 Be5 Nb3 Bd4 Q8c4 Ra1 Rc5 Ra6 Rc7 Bc5 Ng3 e2 Rd7 e1R+ Ne2 Bf2 Ke5 Bh4 Kd4 Bf2+ Kc3 Rb1 Ng1 Re5 Ne2 Raa5 Rg6 Rf8 h8Q Ra6 Rg8 Rff5 Qh7 Rea5 Qe4 Rfb5 Nbd4 Re5 Ba3+ Ka1 Qc6 Rbb5 Bb2+ Ka2 Qc4+
4n3/Pk2KpR1/2Rrb3/rpnQp1R1/p2Q4/3NB3/3b1N1q/B2BN2r b - - 0 1 legal: proof: c4 h5 g4 d5 gxh5 a6 cxd5 Rh6 b4 Rh7 b5 Rh8 f4 axb5 a4 g5 fxg5 Bg4 a5 Bxe2 Qa4 bxa4 Kf2 Kd7 Ke3 Kc8 Kd4 c5+ Ke5 b5 d4 c4 h4 e6 g6 c3 d6 c2 g7 Bd1 h6 Ra7 d7+ Kb7 h7 Bb4 a6+ Kc7 h5 Ra8 a7 Na6 h6 Rb8 d5 Bf3 d6+ Kc6 Nh3 Qf8 d8N+ Kb6 d7 Bg4 Nc6 Ne7 Kf6 Kb7 g8R Kc7 d8Q+ Kb7 Be2 Ba5 Be3 c1R Na3 Nc5 Rg1 Ng6 Qd5 Rc3 Rg7 Nf4 Nc2 Rd3 Nf2 Qd6 Bd1 Bd2 Ne1 Rbe8 Rc1 Nh5+ Kg5 Rc8 Ne5+ Rc6 Rc2 Rd4 N5d3 Nf6 Rc3 Ne8 Rc1 Nc7 Kf6 Qh2 Ke7 Ne8 Rc3 Bf5 R1g5 Bh3 Qh1 Rd6 Qd5 Kc8 Rc2 Ra6 Rc4 Ra5 Rc1 Rg8 h8Q Rf8 h7 Bf5 Qd4 Kb7 Qg8 Bh3 h8B Bf5 Qh7 Bh3 Qf5 Rg8 R7g6 Rf8 Be5 Rh8 Rg7 Rh6 Qb4 Rh8 Ba1 e5 Qe6 Bf5 Qd4 Bg4 Qb3 Be6 Rc4 Qg2 Qa2 Rh1 Rc2 Qh2 Rc4 Nd7 Rc6 Nc5 Qad5
NnR3r1/rbBB4/3Nnq1n/P1Q2b1b/1r4b1/KB3r1k/2R1Q2b/N2Q4 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 c5 Rh3 cxd4 Rh2 Nd7 Rh1 Nb8 Kd2 Kd7 Kc2 e5 Kb2 b5 a4 h5 g4 h3 f4 h4 d6 b3 f6 Ke6 d7 d3 a5 h2 g5 Kf5 f7 d2 g6 e4 g7 b4 Nc3 e3 Qc2+ Kg4 f5 d1B f6 e2 Bg2 e1N Bc6 h3 Nb5 Ng2 Nd6 Ra7 Ra2 Nf4 Nf3 Ne6 Bf4 Nh6 Ne1 Rg8 Qe2+ Kh4 Rf1 h1R Nc2 h2 Na1 Kh3 Re1 Qb6 d8Q Rf1 Bd7 h1B Be5 Be7 f8N Bhb7 f7 Rf3 Rg1 Qc6 Rg4 Bh4 Rc4 Bg3 Bf4 Bh2 Rc2 Rh8 g8B Qb6 Nb5 Qf2 Bc7 Qh4 Nd6 Qf6+ Kb1 b2 Ra3 Ba6 Ka2 b1R Rac3 b3+ Ka3 Bcb7 Rc4 b2+ R4c3 Bd3 Rc6 Bf5+ R6c3 Ng7 Ne6 Bg4 f8Q Bh5 Bf7 Rg8 Qfe7 Qe5 Qg5 Qf6 Qc5 Bg4 Bb6 Bh5 Nc7+ Ne6 Na8 Re8 Bb5 Nf5 Qe1 Nf8 Qcc7 Rd3 Qde7 Bdg4 Qd2 Nh6 Qd1 Rf3 Qee2 Rc8 Ba2 Ne6 Bd7 Re8 Qc5 Rg8 Qce3 Rc1 Rc8 b1B R2c5 Bbf5 Bc7 Rc3+ Bb3 Rc4 Qe5 Rd4 Rc2 Rb4 Qc5
3b1N2/R2B1r1Q/N1B5/Rb3q2/1bn2NP1/n2rQ1rQ/n1qk1K1R/2n2b2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ba3 exf4 axb5 Bb7 b6 Ba6 b5 Bc8 Bb4 axb4 d4 Kd7 g4 Kd6 e4 f5 b7 c5 b6 h5 Bc4 h3 Ra2 h4 Be2 c4 Qc1 f3 Ra4 h2 Ra7 h3 Qa3 f2+ Kf1 c3 Qa4 c2 Nd2 c1B Ra6 b3 Bc4 b2 Qd1 b1N Bb5 f4 Ndf3 Qd7 Nd2 Nf6 Ne2 Nc6 b8R Nb4 Ra1 Qf5 b7 Nd7 Qb3 Ra3 Bc6 Nb6 Nf3 Na2 Ne5 Bd7 Ra8 Nc4 Qe3 Rd3 b8N Nba3 Na6 Rh7 Ra7 Rf7 Ng6 Be7 Nh4 Bd2 Ng6 Bb4 Nf8 Bd8 e5+ Ke7 e6 Kd6 Rg1 h1Q e7 h2 e8B Qhe4 Rg2 h1N Qh3 Rg3 Rh2 Qc2 Qh7 Rd3 Kg2 f1R Qh3 Bc8 Bed7 Ng3 Qh7 Rg1+ Kf2 f3 Qh3 Qc1 Nf4 Ne2 Qh7 Qc2 Qh3 Ke7 d6+ Kf6 d5 Ke5 Qh7 Kd4 Qh3 Kc3 Qh7 Nac1 Ra2 Nb1 Ra5 Kd2 Rc5 Nb6 Nc7 Bg5 Be6 Rc3 d7 Na3 d6 Na2 d8Q Nd5 d7 Ne3 Qe8 Ba6 d8Q+ Rd3 Bed7 Nec1 Ra5 Bb5 Na6 Rg3 Qe5 Nec4 Kf1+ f2 Qe3+ Kd1 Qh3 Bh4 Qf6 Bg5 Qfh6 Bd8 Qe8 Kd2 Qh7 Rge3 Kg2 f1B+ Kf2 Rg3 Qe3+
1R6/Br1bnRNn/1B1n2qk/QQ2r3/R1NPb1r1/4q3/2bQ1r2/b1K3N1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 g4 c5 g5 f5 d6 Kf7 g6+ Kg7 d7 h5 e4 f3 d3 b4 Kd2 f4 e5 c4 e6 b3 e7 h3 e8N+ Kh6 g7 f2 Ra4 f1B Nf6 c3+ Ke1 h2 Nd5 b2 Qe2 h4 Kd1 h3 Qd2 c2+ Ke1 Nc6 b8R Qe8+ Qe3 Nce7 Kd2 Qg6 d8Q Nf6 g8Q Nh7 b7 Bg7 Qge8 Ra5 Nc7 Re5 Nb5 Bd7 N5c3 Rg8 Qf2 f3 Qe2 f2 Na3 b1R Qc7 Bg2 Ne4 f1R Qc5 Rf2 Ng3 Be4 Nh5 Rb3 Bb2 Bf6 Qa5 Rg7 Ke3 c1Q+ Qed2 Rg8 Ng7 Qe1+ Kd4+ Qe3+ Kc4 Rb4+ Kc3 Bef5 Kc2 Rg4 Ne6 Rg7 Kc1 Be4 Bd4 Bf5 Nf3 Be4 Rd1 h1B Ng1 h2 Nc4 Bhf3 Bc5 h1N Bb6 Ng3 Rf1 Rf7 Ng7 Ngf5 Rb4 Nd6 Ra4 Bb5 Qc6 Bd1 Qc5 Bd7 Qcb5 Rh2 Rf5 Rf2 Rf3 Bc2 Rf5 Rd5 Rf4 Ba1 d4 Re5 Rf5 Rf8 Rf7 Rh8 Ra8 Rc8 b8B Rc7 B8a7 Rb7 Rb8
b3NrBQ/q1q1b3/Nb1N4/1PRBrb1r/2Q4B/k4rn1/2R5/K1nq3R b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 d4 Ke7 Kd2 Kd6 Kc2 h5 Kb2 f5 e4 c5 g4 h3 g5 b3 g6 c4 g7 h2 Nh3 f3 Ra3 f4 Qc2 c3+ Ka1 b2+ Ka2 h4 Bg2 f2 Ng1 f1Q Qe2 f3 Bg5 h3 Qd2 f2 Bf3 c2 Ra6+ Nc6 Qc1 Bf5 Ne2 Ne7 g8B Qd1 Ng3 f1R Bh4 Qc7 Nc3 b1R Na4 Rh5 Nc5 Rb4 Ra3 Na5 Rc3 Nb3+ Na6 Rd8 Bg2 Rf3 Rc5 Qg1 Qf1 c1B Qc4 Be3 Kb2 Nc1+ Ka1 Rf2 Bf3 Rbb2 Bg2 Rbe2 Bf3 Rf1 Bg2 Rf3 e5+ Kd7 e6+ Kd6 Qb3 Bf2 Qd3 Re5 Qc4 Ng6 e7 Nf4 Nb4 Nfe2 e8N+ Kd7 d6 Be7 Ne4 Ng3 d5 Be3 Ng7 Rf8 Ne8 Bf2 Na6 Qd1 Re1 h1Q Re2 h2 Rc2 Qhg1 Bh1 Kc8 d7+ Kb7 d8R Kb6 d6 Ka5 d7 Be3 Bg2 h1B N4d6 Qf2 Ra8 Qfg1 d8Q Bd4+ Qc3+ Ka4 Ra7 Be3 Qc4+ Ka3 Rb7 Rf4 B2d5 Rf3 Rc6 Bb6 Rc5 Rd3 Rb8 Bhe4 Rc8 Rf3 Rh2 Qf2 Rh1 Qe3 Bdf7 Ba8 Bd5 Bg5 Qf6 Qeg1 Qh8 Be7 Qe4 Qf2 Rc2 Qfc5 Qc4 Qa7 Rc7 Qc6 Rc8 Qcc7 Qg7 Qd8 Rc5 Qdc7 Qh8
1R1Bq1rn/n2n4/1q2NN2/1bB1Q3/r1q5/1r1kqN2/Q1Qn2P1/1BK1n1R1 b - - 0 1 illegal: No possible last move, all moves rejected
1Q2q1b1/2qr2NB/1b1b1k2/1QQ1RrP1/rbq5/1r4nK/R1N5/rRB1B3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 e5 f4 h5 Kf2 d5 Kg2 a5 c4 h3+ Kg3 h2 c5 a4 b6 d3 b5 h4+ Kh3 d2 b7 a3 c6 d4 b6 a2 c7 d3 Qc2 d1Q Qb2 d2 Na3 e3 Bb5 e4 Ba6 e2 Qb4 e1Q Qa5 e3 Nf3 e2 Nb5 Nh6 Nc3 Nf5 g5 Rh5 g6+ Kf6 g7 Nc6 g8Q Qb3 b8B d1R b7 Be6 c8R Ng3+ Kg2 Rf5 Bc4 Nd4 Qb5 Bd6 Qge8 Bg8 Bc7 Ra4 b8Q Ne6 Nd4 Ng5 Bd3 Qc4 Ba5 Qdc7 Qec6 Rd2 Rg1 h1R Re8 Rh3 Nc2 Rd1 Rb1 a1B Re5 Rd2 Nd1 Bd4 Nde3 Bb6 Be4 Rd3 Rf1 Rb3 Qcc5 Rh2+ Kg1 h3 Rb2 Rf2 Ra2 Rf3 Bd3 h2+ Kg2 h1R Be4 Rh7 Bad2 Rd7 Kh2 Qd1 Be1 Qdd5 Kg2 Qe6 Rg1 Qe8 Rh1 Nf7 Kh3 Rf1 Bd3 Rg5 Bh7 Rf5 Nd4 Rg1 Nec2 Rf1 Ne6 Rg1 Bf2 e1B Ng7 Bb4 Be1 Ng5+ Kh4 Qd4 Bc3 Rd1 Ba3 Nf3+ Kh3 Ra1 Rb1 Qd5 Be1 Qc4 Bc1 Ng5+ fxg5+
QR1b2rn/8/B3n1QN/P3bN1r/4R1Qb/2Bb1rBr/KR3nk1/4rb2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Rh3 g4 Rh1 Qg5 hxg5 fxg3 e4 Kd7 a4 Kd6 d4 b5 Kd2 h5 Kc2 f5 Kb3 c5 g6 f4 g7 f3 a5 g2 Nh3 g1N Bg5 g3 Bh6 c4+ Ka2 b3+ Kb2 g2 Nf4 f2 Nd2 c3+ Ka3 c2 Rc1 h4 Rh3 b2 Nh5 b1R Rc3 h3 Nf6 h2 Nh7 h1R Nb3 b4+ Ka2 Rh5 Na1 Ne7 g8Q Ng6 Rb3 Nc6 Nf6 Be7 Ng4 Bf5 Ba6 f1B Bg7 Nh3 Rb2 g1B Nh6 Bh4 Nb3 Bh2 Qg4 Nd8 Re1 c1B Qe8 Nf2 e5+ Kc7 e6 Kd6 e7 Be5 Re4 Ne6 Qf7 Bcg5 e8R Re1 Rb8 Bd8 Qe8 Rf8 Qf7 Nh8 Qfg6 Re3 Bf6 Rh3 Bg7 Kc7 d6+ Kc6 d7 Kd6 d5 Rg8 Nd4 b3+ Ka3 Kc5 d6 Kd5 Bf6 Ra7 Bg7 Rc7 Bf6 Rcc3 Bg7 Rcf3 Bf6 Bb6 d8Q Bc7 d7 Bb6 Rc2 b2+ Ka2 b1R Rb2 Re1 Qde8 Bbc7 d8B Bb6 Bde7 Bbc7 Bd6 Bd8 Ree2 Bd3 Ndf5 Bc3 Bg3 Be5 Red2 Bec7 Bc3 Be5 Q4g5 Ke4 Re2+ Re3 Qf8 Kf3 Qg4+ Kg2 Qfe8 Rf3 Re4 Bdc7 Qc6 Bcd8 Qa8
N1n2r2/b6k/5Qbq/NQn1K2Q/R1R5/3P2nr/qRpn1B1n/1BNr4 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 f5 Kf3 Kf7 e4 Kg7 g4 h5 d6 c5 b6 c4 d7 c3 d3 h3 e5 b3 b7 h2 e6 b2 e7 h4 e8R c2 g5 h3 g6 Bc5 Nc3 b1R Re4 Ba7 Nd5 Na6 b8N Qa5 d8Q Qa2 Be3 Nc5 Bf2 Ne7 Rc4 Kh6 g7 Kh7 Qe2 Rd1 Nc7 Bb7+ Nc6 Nc8 Qe5 Rf8 Qdf6 Rb8 Ke2 f3+ Ke3 f4+ Kd4 Rh8 Na5 Be4 Qe8 Bg6 Ne2 Ra8 Rg1 h1N Ke5 h2 Bh3 Ng3 Qb5 h1Q Be6 Qh6 Nc1 Rb8 Na8 Rf8 Be1 f2 Bf7 f1N Bf2 f3 Rb1 Rd8 Rb2 Nd2 Rh1 Rb6 Rhh4 Rf8 Ra4 Rd6 Rhb4 Rd4 Bb3 Rh4 Rc4 Qb1 Ba2 Rh3 Bg1 Qa1 Bb1 Qa2 Bd4 f2 Be3 f1N Bf2 Qh4 g8Q+ Kh6 Qfc6 Nh2 Qgd5 Kh7 Qf6 Qh6 Qh1 Bf7 Qhf3 Bg6 Qh5
1qQ3BN/3n2b1/1b2bkr1/nB2N3/PRp2nrB/q6Q/b1RR1N2/2b1K3 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 gxf4 g5 Kf7 Qe2 Ke8 Qg4 hxg4 d4 Kf7 a4 e5 h4 b5 d6 c5 g6+ Kf6 h5 e4 d5 c4 g7 f3 h6 b3 d7 f2+ Kd1 g3 d6 g2 h7 e3 Be2 f1N Ra2 b4 Bg4 e2+ Ke1 b2 Rh5 b3 Bf3 Nd2 Nh3 g1B Nf2 Ra6 Bc6 Ne7 g8B Ng6 Bb5 Qe7 d8R Be6 d7 Bg7 Rh3 Rd6 Rc3 Rc6 Rc2 Qa3 Rc8 Nf4 d8Q+ Qe7 Qb6 Nd7 Qe3 Qa3 Rb8 Rb6 Qh3 Rd6 Nd3 Bb6 Nc3 b1B Ne5 b2 Nd1 Nb3 Nf2 Na5 Bd2 Rd4 Bb4 Re4 Bd6 Rd4 Bf7 Rc8 h8N Rc6 Bg8 Re4 Ra1 Ba2 Rd1 b1Q Bc7 Qbb4+ Rdd2 Qf8 Rb7 Qb8 Bd6 Kg5 f6 Rd4 f7 Kf6 f8Q+ Bf7 Qc8 Be6 Rd3 Re4 Kd2 e1B+ Kd1 Bc3 Rdd2 Bb2 Bc7 Rd4 Ke1 Bc1 Ned3 Nd5 Bg3 Rg4 Ne5 Nf4 Ba6 Bd8 Rb4 Bb6 Bb5 Rc5 Nef7 Rcg5 Ne5 Rg6 Bh4+
qNr2R1K/3b3n/2rpR3/q4rnB/8/brNB2R1/P1QNr3/k2n2QB b - - 0 1 legal: proof: e4 c5 f4 a5 b4 axb4 d4 f5 exf5 cxd4 f6 h6 g4 Ra3 g5 Rh7 f5 Rh8 fxg7 Ra7 g6 Ra8 Bg5 hxg5 Ke2 e5 Kf3 Ke7 Ke4 Kf6 h4 b5 c4 d3 c5 g4 c6 d2 c7 g3 h5 b3 h6 b4 h7 g2 Qc1 d1N Qf4 b2 Qf2 b3 Bd3 Na6 Rh5 Ba3 Bf1 d6 Rh1 Bd7 c8B Qa5 Ne2 g1Q Bb7 Rc8 Rh3 Rc6 Nd2 b1R Nc3 b2 Rg3 Nc7 Bd3 Ne6 Qh2 Qga7 Ba8 Nh6 g8Q Nf8 g7 Nf7 Bb7 Qa8 Qe2 Ke7 f6+ Ke6 Qf2 Rc1 Qh2 b1R Qg1 Ng6 Qc8 Rf8 h8R Rb3 g8B Rc2 Qc7 Rc8 Bh7 Nf8 Bg6 Nh7 Bh5 Rcb2 Rc1 Rb5 Rf8 R2b3 Kf3 e4+ Kg4 Nfg5 f7 Ke5+ Kh4 Nb2 Re1 e3 Re2 Kd4 Re1 Rc4 Bh1 Nd1 Qc6 Rf5 Qa4 Rb1 Qc2 R4c7 Rh8 Rc6 f8N Rb3 Kg4 Rf2+ Kh4 e2 Rg8 Bg4 Nd7 Bh3 Nb8 Bd7 Re3 Rf5 Rf8 Kc5 Re6+ Kb4 Rf1 e1R Rf3 Re2 Rg3 Ne4 Be8 Neg5 Kh5 Bb2 Kh6 Ka3 Kg7 Bc1 Bc4 Bb2 Kh8 Bc1 Qd3 Kb2 Bh5 Ka1 Qc2 Ba3 Bd3
2K1b2N/qpQ3Q1/4P3/Q1rn4/1BrRb1nq/B1Nnn1BN/2Rk4/1q1n4 b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qb3 f3 Qc2 Qf6 Qd1 Qd8 Nh3 f5 Bg2 h5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qb3 f2+ Kd1 f3 Kc2 Bf4 gxf4 Qg5 Kb2 Kf7 Qd1 Ke8 Kc2 Qd8 Kb3 Ke7 Kc4 Kf6 Kb5 Kf5 a4 Ke4 d4 f1N h4 g5 d6 c5 d7 f2 d5 g3 h5 g4 f5 b3 d6 c4 f6 g2 f7 g3 f8B b2 a5 c3 h6 c2 a6 Nc6 a7 Nge7 h7 Ne3 Nh3 Ne5 Qg1 f1N Nc3+ Kd4 Ra5 b1B Ba3 c1N Ra6 Rb8 a8Q Nd5 Ra7 Rg8 h8N Qh4 d8Q Rg5 d7 Ncd3 Qc7 Ng4 d8B Bd7+ Ka5 Bb5 Bfb4 Be8 Ra6 Re5 Rd6 Rc8 Bg5 Bc2 Bf4 Rf5 Rd7 Rh5 Kb5 Rf5 Qaa5 Bb1 Qh2 g1Q Qg2 Nd1 e4 Nfe3 e5 Rh5 Qb2 g2 e6 Qge1 Bg3 g1Q Rh2 Qef1 Rc2 Qff2 Rc1 Qfe1 Qb8 Rc4 Qbc7 Bc2 Nb1+ Ke4 Qg7 Qef1 Nc3+ Kf3 Ne4 Ke2 Nc3+ Kd2 Bgd6 N5f4+ Kb6 Nfd5+ Ka7 Qf5 Kb8 Qe4 Bg3 Qd4 Bgd6 Qa7+ Kc8 Ndf6 Qg6 Ne1 Qc6 Be4 Bg3+ Nd3 Rd4 Ndf2 Rf1 Rhc5 Qcc7 Nfd5 Qg7 Qh1 Ra1 Qc1 Rb1 Nfd1 Ra1 Qc2 Rc1 Qb1 Rc2+
n1n1b1Q1/b1q1n2q/4p1r1/3B1N1q/3Q3B/KR5r/PBNkb1N1/QR4n1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 c5 Rh3 cxd4 Rh2 Nd7 Rh1 Nb8 Kd2 Kd7 Kc2 Kd6 Kb2 Kc5 f4 h5 g4 b5 f6 e6 f7 h3 f5 d3 d6 Kd4 d7 d2 g5 Ke3 g6 h4 f6 h2 g7 h3 Bc4 b3 Nc3 b4 Bd3 Bc5 f8Q Na6 f7 Ne7 g8Q Qc7 d8B Ba7 Qf1 Bd7 Nb1 Nc8 Nf3 Be8 Rg1 h1N Qg4 h2 Bf6 Nf2 Qe7 h1Q f8N Qh5 Qc4 Nh3 Rg3 Ng1 Be4 Rg8 Qd1 Rg6 Na3 Rb8 Qh7 Rb5 Kb1 b2 Bh4 Rd5 Kc2 b1N Kb3 Nc3 Bb2 Rd3 Qg8 Nd5+ Qc3 Nde7 Rb1 Qh6 Qf1 Qh5 Bd5 d1B+ Nc2+ Kf4 Bc6 Be2 Nfd4+ Rf3 Ka4 b3 Qd1 Rd3 Ka3 Re3 Nf5 Rd3 Ba1 b2 Bd5 Rf3 Rc1 b1Q Bb2 Qc6 Qe1 Nc7 Qd2+ Re3 Rh3 Na8 Qd4+ Re4 Qe1 Qb6 Rb3 Qc7 Nce3 Qbc2 Rb1 Qd3 Nc2 Kf3 Bc4 Re3 Bd5+ Qe4 Nd7 Kf4 Ne5 Reg3 Ng4 Rh3 Qdd1 Qh1 Nge3 Qh7 Qc3 Qf3 Qc1 Qfh5 Ng2+ Kg4 Q1d2 Qg7 Bc1 Qgh7 Nge3+ Kf4 Qa1 Bf1 Bb2 Bd3 Bc4 Kf3 Qc3 Ke2 Bd5 Bc4 Qch8 Kd2 Ng2 Be2 Qd4+
K1QbB1br/N1B1pn2/2r1R3/1q2Qr2/3b3P/r2b1B2/3k2N1/bRRn1N2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 g4 fxe4 f4 h5 Qe2 g5 Qg2 gxf4 g5 Bh3 Qg3 Bc8 Qg4 hxg4 Ke2 Kd7 h4 Kd6 d4 a5 b4 c5 g6 c4 g7 f3+ Ke3 a4 b6 f2 b7 g3 b5 a3 b6 g2 Ne2 g1R Nd2 c3 Nf4 a2 Ng2 c2 Be2 f1B Bf3 Nd7 b8N Ndf6 b7 Nh6 g8B Qd7 Rb1 a1B Bf7 Bg7 Nc6 Bd3 Nf1 Ra3 Na7 Qb5 Be8 Nf7 b8R Be6 Rb6+ Qc6 Bd2 c1R Ba5 Ng4+ Kf4 e3 Ra6 Bc4 Ke4 e2 Rab6 Rcc3 Rc1 e1B Rbb1 Qb6 Rh2 Kc7 d6+ Kb7 d7 Ka6 d8Q Ne3 d5 Bd4 d6 Nd1 d7 Qb5 Qc7 Bd3+ Kf4 Bd5 d8Q Rc6 Qe5 Rh1 Bb6 Ba5 Bc7 Bab6 Rh3 Ka5 Qc8 Bb3 Rg3 Kb4 Rg6 Rh3 Re6 Rg3 Bb8 Bd8 Bc7 Rg5 Bb6 Bh7 Bc7 Rf5+ Ke4 Rc2 Bg4 Kc3 Bh5 Bc4 Bf3 Be2 Nf4 Bg8 Ng2 Qb4 Kd5 Bd3 Kc6 Qa5 Nh2 Kd2+ Kb7 Qb5+ Ka8 Rc6 Nf1+
3Q1qbB/PNbb1B2/KQ6/Rr3Q1B/np6/Rnb1q3/4br2/bk1R2N1 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 gxf4 g5 Kf7 Qe2 Ke8 Qg4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kd4 h4 c5 a4 e5 d6 b3 h5 f3 d7 f2 g6 g3 g7 e4 f6 g2 f7 e3 d3 e2 h6 e1B h7 b2 a5 c4 a6 c3 a7 c2 Bh6 c1Q Ra3 Na6 Nc3 b1B Nh3 g1B Nd1 Qe3 Be2 f1B Bh5 Rb8 Ndf2 Bh2 Ne4 Be2 Nc5 Nf6 g8B Bc7 Ng1 Ne4 Rh3 Bg7 f8Q Nd2 Qf5 Nb3 Bgf7 Qf8 d8Q+ Kc3 Bg5 Kc2 Bf6 b6 Nb7 Ba2 Ra5 Rg8 h8Q Bc3 Qh6 Nac5 Bd4 Na4 Ka6 b5 Qb6 b4 Bf6 Bh6 Bh8 Rg2 Rg3 Bhg7 Rh3 Bf3 d4+ Kb2 d5 Bd7 d6 Rf2 Qf4 Kb1 Qf5+ Qe4 Rg3 Be2+ Rd3 Bc6 d7 Qe3 Qe8 Ba1 d8R Bgc3 Rdd5 Bd7 Qd8 Nb2 Ra3 Na4 Nd6 Rb7 Ra5 Rb8 Qbc5 Rb5 Nb7 Nd2 Qc6 Bc4 Qb6 Nb3 Bfg6 Bg8 Be8 Nb2 Bef7 Na4 Rd1+
K7/Rn2q1b1/2BNPn1Q/R2r3k/1b3B1b/N1b1Qpn1/4nrR1/rN1B4 b - - 0 1 illegal: No possible last move, all moves rejected
B3bK2/Rpk5/3Nb3/1brnQN1n/1B3QrQ/1rr3PB/2nqR3/1N5b b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Nf3 fxg3 Rg1 g5 Rh1 g2 Ba3 g1N Bb2 Ra5 Bc1 Ra8 Nd4 g4 Nf5 g3 Nh4 g2 Nf3 Bc5 Nd4 Bd6 Nf3 Bg3+ hxg3 Qh4 Kf2 Qf6 Ke1 Qd8 Kf2 Kd7 Ke3 f5 Kd4 h5 Ke5 c5 a4 b3 e4 h4 d4 h3 d6 c4 d5 c3 a5 f4 a6 b2 a7 h2 Qc2 Nh3 Ba6 g1R Nh4 f3 Bd2 f2 Qc1 f1B Nf5 c2 Bb4 Rh5 Qf4 Ne7 Kf6 c1R Kg7 Nbc6 e5 Rc3 Bc4 Rb8 a8B Nd4 Ra7 Nc2 Ba2 Qa5 Kf8 Bb5 e6+ Kd8 Qe5 Nf4 d7 Rf1 Rg1 h1B Rg2 Rff3 Re2 Rg5 Bc4 Nh5 Bd3 Re3 Be4 Rg4 Bg2 Rc5 Bh3 Rb3 Qf4 Qc7 Qe5 Qd6 Qf4 Kc7 d8N Be8 Nf7 Bcd7 Qd4 Qf4 N7d6 Rc8 Qe5 Qd2 Qf4 Ng8 e7 Ngf6 Rg2 Be6 Re2 Bb5+ e8Q Nd7+ Ke7 Nb6 Qh8 Be8 Qhe5 Rcc3 Na3 b1B Kf8 Ba2 Nb1 Rc5 Ne3 B6d7 Nef5 Bb5 Nc4+ Kd8 d6 Nd5 d7 R8c6 Ncd6 Kc7 Qe6 Rcc3 Qee5 R6c5 d8Q+ Kc6 Nf7 Rb2 Nh8 Nde3 Ra5 Be6 Nf7 Rbb3 N7d6 Nd5 Qh4 Kc7 Ra7
2r1rN1R/r7/nbP1bp2/q1r2R2/N1R3n1/NBQ5/k1b1K3/1qQ1BQ1b b - - 0 1 illegal: No possible last move
5qnn/6N1/R2B1r2/7n/2rnp2Q/P1Rr1q1n/k2bN1Rq/2QK1QBN b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 axb4 e4 fxe4 g4 h5 f4 Nh6 f5 Rh7 f6 Ng8 Be2 Bf5 gxf5 Rh8 Bg4 hxg4 d4 Kd7 h4 Kd6 h5 c5 f7 e5 a3 b5 f6 g5 h6 g3 h7 g2 Qe2 b3 Nh3 g1Q+ Qf1 e3 Nc3 e4 Nb1 c4 Nf4 e2 Bd2 b2 Ba5 g4 Rh3 c3 Rd3 g3 Rf3 c2 Ng2 c1N Re3 b4 Bb6 b3 Nh4 g2 Nd2 b1R Ba7 b2 Nhf3 Nc6 Ra2 Ne5 Rc3 Bh6 f8R Rc8 f7 Qh2 Ng1 Rc4 Bb6 Qe7 Ra8 Ng6 f8B Ra1 Ra7 b1Q Ra6 Qd3 Rb2 Qf3 Ra2 Kd7 d6 Ke6 d7 Kd5 d8N Qb4 Ne6 Nb3+ Nb1 Bg5 Nh3 g1N Nf2 Nh3 Ng7 Be3 Bbc5 Qbb8 Bfd6 Qbf8 Rd2 Ra2 Nh1 Bh6 Rd1 Rd2 Ba7 Rd3 Rd2 Nc5 Bb6 Nd7 Ra2 Ndf6 Rd2 Kc6 d5+ Kb5 Bg1 Nh5 Ra2 Re3 Kd2 e1N+ Kc1 Bf4 Rg2 Nc2 Kd2 Nd4 Kc1 Ngf6 Kd2 Rg8 h8Q Rd3+ Ke1 Be3 Qh6 Rh8 Qf4 Rh6 Qh4 Bg5 Qf4 Ng8 Qd2 Q3f5 Qc1 Bd2+ Kd1 Q5f7 Be7 Qf2 d6 Nh8 d7 Rf6 d8Q Qff4 Bd6 Qfg3 Rc6 Ka4 Qe7 Re6 Qh4 Rf6 Rc2 Kb3 Nc3 Qe3 Ne2 Qf3 Rc3+ Ka2 Ra6
Q4r2/K2PQb1n/2N2q2/bNB1B2r/1b1q4/NQrR1qkB/3rp2r/4R3 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc3 a5 f4 h5 d4 c5 g4 e3 b4 a4 g5 a3 f5 e2 f6 e1B+ Bd2 a2 b6 h3 b7 h4 g6 h2 b5 h3 d5 e4 b6 Ke5 g7 e3 d6 Kf4 f7 Qf6+ Kc2 c3 Kb3 c4+ Kb4 c2 Kb5 c1R Nf3 c3 Ng1 c2 Nf3 Kg3 Bb4 e2 Na3 Be6 d7 Nc6 b8N Ne5 b7 Rh5 Bc5 Ba5 Nd4 Bb3 Rb1 a1Q Nbc6 Bd6 f8Q Bf7 Qe7 Rf8 Ka6 Qc3 Ba7 Bdb4 Ndb5 Qd4 Rb2 Rb1 b8B c1R Bc5 Rc3 Qb3 Rd1 Ka7 Rdd3 Bg2 Rd2 Re1 h1Q Bd6 h2 Bh3 Qhf3 Rbb1 h1R Rbd1 Nh6 g8Q+ Ng4 Qh8 Rh2 Qg8 Qg5 Qh8 Nf6 Qg8 Nh7 Qh8 Rdc2 Rd3 Rd2 Qg8 Rb8 Qc8 Qf6 Qb7 Rd8 Qa8 Rf8 Bxe5+
1B1r1kq1/p2qnnN1/4r1Pr/QR4q1/K2b1NR1/QQ3Br1/3Nr3/1n2R3 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 d5 b4 h5 e4 f5 c4 d3 Kc3 d2 Kb3 d4 b6 d3 b7 f4 c5 h4 b5 f3 g5 f2 g6 h3 e5 h2 e6 Nh6 c6 Bg7 e7 Bd4 b6 Nf7 c7 Nc6 b8R Rh6 Qh5 d1R c8Q d2 b7 Re1 Qch3 Re6 Ne2 g1Q Bg2 f1N Bf3 g2 Ra4 d1Q+ Ka3 Nd2 Nf4 Qc8 Qa5 Re2 Bb2 Qe3+ Bc3 g1R Rb4 Rg5 Re1 h1R Rb5 Rg4 Rg5 Rg3 Rg4 Qe5 Bb4 Qg5 Bd6 Re6 Be5 Rh2 Bc7 Qe2 Ka4 Qd3 Bd6 Rhe2 Bc7 Nc4 Nd2 Na3 Bd6 Nb1 Be5 Kd7 e8N Ke7 Ng7 Qg8 Rf8 Rd6 b8Q Re6 Qb3 Rd8 Bc7 Qdf5 Bb8 Qd5 Rh4 Qd7 Rg4 Nfe5 Rf6 Nf7 Rf5 Kf8 Rb5 Ne7 Qf1 R2e4 Qfd3 R4e5 Qa3 Re2 Qdb3
2N5/Qb1b4/2Q4k/1rnq2Pb/2RN2Q1/KBB2q1p/R1R2b1r/3Bb1rb b - - 0 1 illegal: No possible last move
nK1QR1q1/n4nb1/Rn2N2P/Q1q1B1q1/4pN2/1B1r3k/2rR4/qNn1Q3 b - - 0 1 legal: proof: d4 b5 h4 f5 g4 c5 a4 cxd4 axb5 h5 e4 fxe4 Ra6 g5 Ra1 Bb7 Bf4 Bd5 Be3 Bf7 Bd2 gxh4 Bc1 h3 Ke2 h4 Ke1 Bh5 gxh5 Qb6 Ra5 Qc7 Ra1 Qd8 Kd2 Kf7 f4 Ke6 b4 Kf5 c4 a5 c5 e5 c6 d5 b6 a4 b7 a3 c7 e3+ Kd3 e2 c8R Kg4 f5 e4+ Kd2 d3 Kc3 a2 Kd4 h2 Ke5 d2 b5 h3 b6 d4 f6 d3 f7 Nd7+ Kd5 Bg7 Kc6 Qg5 Kc7 Ra3 f8N Nh6 b8Q Nf7 b7 Nb6 h6 Na8+ Kd7 Kh4 Qd6 e1N Qc2 d1N b8Q d2 Qcc6 Nd3 Qc2 Nc3 Qc6 d1N Qcb7 Nd5 Qa6 N1c3 Qd2 Nb5 Ne2 Na7 Bb2 Nc1 Nf4 Rd3 N8e6 Rh7 Rg1 h1Q Be5 h2 Re8 Qhg2 Qaa5 h1Q Qbd8 Kg4 Qf2 Qhh5 Qfe1 Qg3 Rg2 Rh8 Ng6 Kh3 Rd2+ Qg2 Be2 Qg1 Bd1 Qc5 Nh4 Qhg6 Ng2 Qh7 Bb3 Qg8 Qf2 Nc6 Kc8 Na7+ Kb8 Ndb6 Qe1 Rh7 Na3 Rh8 Rb1 a1Q Rbb2 Qh7 Nb1 Rf8 Ra2 Qg8 Qd6 Nh8 Qe7 Rf2 Qd8 Nf7 Ngf4+ Kh2 Rdc2 Rfd2 Qc3 Rf2 Ra6 Kg3 Qa5 Kg4 Rd2 Rh2 Rd1 Rc2 Qf1 Kh4 Rd2 Kg3 Qe1+ Kg4 Nd5 Kh3 Ndf4+
3bn1n1/BQ1bpK2/5R2/1b1RP1b1/5b1Q/b1B1q3/1Nkr2RB/N2nnQ2 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 b4 a5 Bb2 h5 Kd2 h4 Ke1 a4 Bg2 h3 Bc1 Ra5 bxa5 hxg2 Kd2 Kf7 Kd3 Ke6 Ke4 g5 c4 d6 f4 g3 h4 d3 h5 a3 f5+ Kf6 Kd5 a2 e4 g4 c5 d2 c6 Qb6 c7 Na6 h6 Bd7 c8Q Qe3 h7 Bh6 b6 Bg5 Nf3 g1B b7 g2 b8B g3 Qf1 d1B Rh5 B1a4 Nfd2 Bab5 Na3 Bh2 Qb7 g1N Ba7 g2 Nb3 Nf3 Nc4 g1B Nb2 Bhf4 Bd2 Ne1 Bc3+ Be5 Rd1 a1B Rd2 Bh2 Rc2 Bhf4 Rg2 Bd4 Bd2 Bb6 Bc3+ Kf7 f6 Kg6 f7 Bd8 e5 Kf5 f8B Be8 Bh6 Bed7 Nc4 Bb2 Rh3 Nc2 Rf3 Ba3 Nb2 Ne1 Rff2 Nc5 a6 Ne6 Rd2 Ng7 Rd1 Bf6 Bg5 Ne8 Bh4 Bg5 Bg3 Nh6 Rd4 Rf8 h8Q Ng8 Rdd2 Rf6 Rdf2 Rh6 Rd2 Rh3 Qh4 Rh2 Rg1 Re2 Bh2 Rg2 Rd3 Rd2 Rg2 Bbc6+ Kc4 Ke4 Rd5 Ba4 Bad4 Bac6 a7 Ba4 a8R Bac6 Na5 Bb5+ Kb3 Nd3 Rc5+ d5 Ra7 Qf2 Be3 Re2 Ra6 Ne1 Rac6 d4 Rf6+ Bbc6 Kc4 d3 Bed4 Qe3 Nb3 Rc2 Ra5 Rf2 Ba7 d2 Bcd4 d1N Bc3 Qb6 Rb5 Ke3 Rc5 Bb5+ Kd5 Re2 Rc4 Rd2+ Rd4 Bdc6+ Ke6 Bd7+ Kf7 Qc5 Rd5 Ke4 Na4 Qd4 Qh1 Kd3 Nb2+ Kc2 Qf1 Qe3 Na1+
1Br2nnR/P2q4/1q1Q1N2/4pqQq/4N2B/1Bb1q2R/3nq3/R1K1kq1N b - - 0 1 legal: proof: d4 f5 b4 a5 f4 axb4 g4 c5 e4 fxe4 f5 cxd4 Bh3 g5 Bf1 Ra5 f6 Rf5 h3 b6 Qd3 Ba6 Qd2 Be2 Qd1 b5 gxf5 g4 Rh2 g3 Rh1 Bg4 hxg4 Qc7 Nd2 Qa5 Nb1 Qd8 Kd2 Kf7 c4 h5 a4 e5 g5 d5 a5 e3+ Kc2 d3+ Kb2 h4 c5 d4 a6 b3 c6 b4 a7 h3 c7 d2 c8R e2 Ra5 e1Q Ra4 g2 Bd3 h2 Na3 Nd7 Ne2 g1Q Nb5 Qe3 Rc6 Qf1 Ng3 Qb6 Qg4 d1Q Rc3 Qde2+ Bc2 d3 Ra1 d2 Rc8 d1Q Nc3 Bc5 Nce4 Nf8 Bd2 Be7 Be1 Qd7 Kb1 b2 Bb3+ Ne6 Rc3 Bc5 Qh4 Bd4 Rd3 Bc3 g6+ Ke8 g7 Nf8 Qh5+ Kd8 f7 Kc7 f6 Kc6 Qg5 Kb5 Rg1 Qff5 Nh1 Qff1 Rg3 Qff5 Rh3 Qff1 Bd1 Kc4 Bh4 Qff5 Rd2 Qff1 Kc2 b1N Kc1 Qff5 Bc2 b3 Bd1 Q3d3 Rda2 Nd2 Ra6 Qde3 R6a3 Ng6 f8B Kd3 Bd6 Nf8 f7 Qff1 Bb8 Qff5 Nhg3 h1Q R3a2 Qhh2 Nh1 Qh5 Bc2+ Ke2 Ra4 Qhf2 Rc4 Ke1 Rc8 Rh6 Bd1 Rc6 Rd8 Rc8 Bc2 Ne7 g8N Qee2 Ngf6 Ng8 Bd1 b2+ Kc2 Ng6 f8Q Qee3 Qd6 Nf8 Re8 Nc4+ Kb1 Nd2+ Ka2 b1Q+ Ka3 Ba5+ Bb3 Qbd1 Kb2 Bb4 Ra6 Qde2 Rd8 Bc3+ Kc1 Qf1 Ra1 Qee2 Re8 Qg3 Re7 Qgf2 Rh7 Qbe3 Rh8 Qb6 Rg3 Qfe3 Rh3+
1Q3N1r/bBbq1pB1/1b2RP2/2p2RnR/2r2Q2/1K2N2q/nQ1Bq2r/k7 b - - 0 1 legal: proof: c4 b5 d4 g5 a4 e5 axb5 exd4 Kd2 d5 Ke1 dxc4 h4 gxh4 b3 a5 b6 a4 Bh6 a3 Bg5 Bd7 Bc1 Ba4 bxa4 Ke7 Rh3 Kd7 Rh1 Ke8 Kd2 Kd7 Kc2 Kd6 e4 Ke5 g4 h5 g5 h3 a5 a2 g6 c3 a6 h2 a7 d3+ Kb3 Kd4 f4 h4 f5 c2 b7 d2 g7 h3 e5 Qd7 e6 Nc6 b8B Bc5 e7 Nb4 e8R Nf6 g8Q Nh7 Qg2 Bb6 Na3 Ng5 Qdf3 d1Q Nc4 Qe2 Bd2 c1B Ne3 c5 Rb1 a1B Re6 Na2 Qf4+ Kd3 f6 Be5 Nf3 Bec7 Nh4 Bb2 Rc1 Bbe5 Ng6 Bed6 Nf8 Rh4 Qff2 Rc4 Qf4 Be5 Qb7 Bed6 Bg2 Be5 Rhf1 h1Q Rf2 h2 Bf3 Qg2 Rh1 Qh3 Bg2 Ba5 Qb4 Bab6 Bb7 Bed6 Qa3 Be5 Qb2 Bed6 Re1 h1R Rf3 Rh2 Rh1 Be5 Rff1 Bd8 Bd6 Bdc7 Rf3 Rd8 a8Q Ba7 Qa1 Bcb6 Qb8 Rc8 Be7 Bec7 Qb2 Re8 Qg4 Rc8 Rf5 Re8 Qf4 Rd8 Nh7 Rh8 Nf8 Qhf3 Bc1 Rg2 Rh5 Rh2 Ng6 Qg3 Bf8 Qh3 Qbe5 Nh7 Bg7 Ng5 Bb2 Kd2 Bc3+ Kc1 Nf8 Kb1 Be1 Rh7 Qc3 Rh8 Qc2+ Ka1 Bb4 Bd8 Bd2 Bdc7 Qb2#
6r1/n2R2QN/2R1rB1B/2Kb1npk/5n2/pr3N1q/1Q2P3/rB1rN1Rb b - - 0 1 legal: proof: h4 e5 a4 c5 d4 cxd4 f4 exf4 g3 fxg3 h5 b5 axb5 g6 h6 Bg7 hxg7 Qb6 Bh6 Qc7 Bc1 Qd8 Kd2 f5 Kd3 Kf7 Kc4 d5+ Kc5 h5 b4 a5 c4 f4 b6 h4 b5 f3 b7 f2 b6 g5 Qd3 g2 Qc2 a4 Bf4 d3 Qd1 Kg6 Nd2 h3 Bd6 h2 Qb1 a3 Qb2 d4 Ngf3 g1N Ne1 Rh3 Bg2 f1R Ndf3 d2 Bf8 d3 Rd1 Nc6 b8N Qd7 b7 Nh6 g8Q+ Kh5 Qgg7 Rg3 Bh3 Na7 Bf5 Nh3 Rg1 h1B Bh7 Qe6 Nd7 Nf5 b8B Bb7 Be5 Nf4 Bf6 Rd8 B8e7 Rh8 Nf8 Bd5 Bd6 Rg8 Bg6+ Kg4 Nh7 Rf2 Bf8 Rh2 Kb4 Rh6 c5 Qc8 c6 Qd7 Ra1 d1R c7 d2 c8R Rc1 Rc5 d1R Rc6 Qc8 Ra2 Ra1 Kc5 Qd7 Qb4 Qc8 Rd2 Qd7 Qb2 Qc8 Be8 Qe6 Bd7 Kh5 Bc8 Qd7 Ba6 Rh3 Bd3 Qe6 Bb1 Rg6 Nh2 Rb3 Rd3 Qe3+ Rd4 Qh3 Nhf3 Be4 Rd7 Bd5 Be5 Re6 Bf6 Bc4 Qh8 Bd5 Bh6 Rg7 Qf8 Rg8 Qg7
Q2k1B2/N2b4/3n1nr1/KNb3p1/n1pQR3/5BrP/n1r3BQ/3RNqn1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 e4 g5 d4 f5 Kd2 c5 d6 g3 h3 g2 b6 b3 Kc3 f3 e5 f4 e6 c4 Kb4 f2 e7 f3 d5 b2 b7 Ra2 Qd4 Nf6 Na3 b1N Nb5 Rc2 Ba3 Nc3 Rd1 Nbd7 b8Q Nb6 Ka5 Na2 Qa8 Rg8 d7+ Kf7 d6 Rg6 Be2 f1N e8B+ Ke6 Bb4 f2 Nf3 g1N Ne1 Nd2 Bf3 f1R Qb2 Qe7 d8Q Nde4 Bc6 Na4 d7 Qf7 Bg2 Nd6 Bcf3 Rff2 Qd4 Rfd2 Qc7 Ke7 d8N+ Bd7 Ba3 Rd3 Nc6+ Ke6 Nca7 Ke7 Nc8+ Ke8 Qcb8 Kd8 Nca7+ Nc8 Qh2 Bc5 Be4 Rg3 Bef3 Ne2 Rf1 Ng1 Bb4 Qd5 Rf2 Qf5 Re2 Qd3 Re4 Qf1 Qe3 Bd4 Bf8 Bc5 Qd5 Nd6 Qed4 Qe2 Qc6 Qf1 Qa8+
1Nq1nQ2/kN4rB/3b2pb/2R2n1B/bR1Qb1K1/r1B2p2/4bP2/Nr5R b - - 0 1 legal: proof: g4 e5 a4 b5 b4 c5 d4 exd4 bxc5 h5 Nf3 hxg4 axb5 a6 Ng1 axb5 e4 d5 Ke2 Kd7 h4 Kc6 c4 Kb7 e5 f5 e6 f4 h5 g3 Kf3 b4 h6 g2 h7 b3 e7 b2 e8B d3 Ne2 g1B Bd2 d4 Ra4 Nf6 Na3 b1R Bc3 d2 Nc2 d3 Rb4+ Ka7 c6 Bf5 c5 Qc8 c7 Bh2 c6 Rg8 Bh5 Ne8 h8Q g6 Ned4 Bg3 Na1 Bh6 Qf6 Rg7 Qf8 Nd6 Bg2 Nd7 Bh3 Be4+ Kg4 f3 Qa4+ Qa6 c8R d1B c7 d2 Bf1 Bb3 Bc4 d1B Bg8 Be2 Bh7 Bbd1 Qb3 Qc4 Qb2 Nf5 Qd2 Ba4 Nc6+ Ka6 Nb8+ Ka7 Qd4+ Qc5 Re8 Bd6 Re5 Nf6+ Kh3 Qb6 Rc5 Ne8 Kg4 Qc6 Rbc4 Kb7 c8N Ra5 Rb4+ Ka8 Na7 Qc8 Nac6 Ra6 Nd8 Ka7 Bd2 Bd7 Nb7 Ra3 Be1 Ba4 Bc3
q2k3B/1Q1pn1b1/3Q3r/2KQ1PR1/2b2Nr1/1B4Nb/1r1Bb1p1/N1Rb1n2 b - - 0 1 legal: proof: d4 b5 g4 e5 f4 h5 a4 hxg4 axb5 c5 e4 cxd4 Ke2 f5 Ke1 Qf6 Ra3 exf4 Ra1 f3 Nd2 f4 Nb1 Qf5 exf5 Be7 Be2 Bd6 Bf1 Bf8 Kd2 g5 Kd3 a5 Kc4 f2 h4 a4 b4 f3 b6 d3 b7 g3 b5 g4 b6 d2 h5 g2 h6 a3 h7 g3 Rh5 a2 Nh3 g1R Nf4 Ra6 Rg5 Nc6 b8Q Nh6 b7 Bg7 Qd6 Rb6 b8Q Ne7 Kc5 Ng4 c4 Kd8 Na3 Rb2 Nc2 Ne3 Qb7 Rg2 Be2 f1B Rb1 f2 Na1 Rg1 Qdb3 d1B Bd2 Bg2 Rc1 f1B Qbd3 Bh3 Q3d5 Rg2 Bh5 Bd3 Bf7 Nf1 Bg8 B3e2 Be6 Rf8 h8B Rf6 Qba6 Beg4 Qd4 Bdf3 Nb3 a1Q Kb6 Rc2 c5 Bf8 c6 Rb2 Kc5 Bd1 Bg8 Qa2 Na1 Bg7 Bb3 Rh6 Q4d5 Bh5 Qb5 Ba6 Qb7 Bc4 c7+ Ke8 c8N Qa8 Qf6 Kd8 Nd6 Bhe2 Ne4 Rf2 Nh5 g2 Neg3 Rf4 Qfd6 Rg4 Nf4
3n3Q/q2R2q1/1Nr3B1/p3NR2/2Bp4/Kn1P1brQ/B2q2q1/Nb2k1rQ b - - 0 1 legal: proof: f4 c5 a4 e5 b4 exf4 g3 b5 axb5 cxb4 Bh3 f3 Bg2 Nf6 Bf1 Ng8 Na3 f5 Kf2 Bd6 Ke3 f4+ Kd4 f2 Nb1 f3 Kd3 Bf4 gxf4 h6 Bb2 Qc7 Bf6 Qa5 Bg5 hxg5 Kc4 Nf6 Kb3 Qb6 Kb2 Qd8 Kc1 Ng8 Kb2 Ke7 e4 Kf6 c4 a5 h4 d5 h5 g4 b6 g5 e5+ Kf5 c5 Ke4 c6 g3 b7 b3 c7 g4 h6 g2 f5 g3 h7 Na6 b8N Bb7 c8B Ne7 e6 Rg8 h8Q Nc6 e7 Nc5 e8B Ra6 Ka3 b2 f6 Nb3 Bc4 f1R f7 f2 Nf3 g1Q f8Q g2 Ne5 Rg3 Be6 Qd7 Qhh5 Nd8 Qh3 Rc6 Qfh8 d4 d3+ Ke3 Bed5 Qh2 Nd2 g1Q Bg6 b1B Be6 Qg7 Nbd7 Qgg2 Nb6 Rg1 Qc1 Ke2 Bed5 Nc5 Nb3 f1Q Bg8 Qff7 Ra2+ Bc2 Na1 Nb3 Qch6 Kf1 Q6h7 Bb1 Rf2+ Ke1 Rf5 Ba8 Q7h6 Qa7 Q6h4 Nc1 Ba2 Qd2 Bgc4 Qhg2 Rh2 Nb3 Qe4+ Qge2 Qh1 Qf1 Rhf2 Qg2 R2f4 Rc8 Rf7 Bf3 R4f5 Rc6 Rd7
b3K3/1QR4r/pq2Q3/2qRBn1Q/P2n1b1r/4Rq1N/1N5p/N2qB1rk b - - 0 1 legal: proof: f4 d5 c4 g5 h4 gxh4 a3 c5 e3 e5 cxd5 exf4 b4 b5 bxc5 b4 Ba6 Bh3 Bc4 Bc8 Ba2 b3 Qf3 bxa2 Qg4 Qb6 Qd1 Qd8 Kf2 Kd7 Kf3 f5 g4 h5 d4 h3 a4 h2 d6 Ke6 d7 Kd5 c6 h4 e4+ Kd6 e5+ Kd5 c7 a6 g5 h3 g6 Nf6 g7 Bb7 c8Q Rh7 g8Q+ Rf7 e6 Bh6 e7 Ng4 e8N Nc6 Nd2 Ne3 Nd6 Qb6 d8R Ra7 Ba3 Ba8 Rc1 a1Q Qb7 Qc3 Nb3 Qcc5 Na1 Bg5 Qe8 Rh7 Bb4 Rh4 Be1 Bh6 Qh5 Bg5 Qe2 Bh6 Kf2 f3 Kg3 f2 Nc4+ Ke4 d5 f1Q Nb2 Nd4 Qc4 Qe2 Rd7 Qd1 d6+ Nd5 Rd8 Bg5 d7 f4+ Kf2 f3 Kg3 f2 Re8+ Be7 d8B f1Q Bc7 Ke3 Be5 Bd6 Rd8 Ne7 Qe6 Bb8 Rd5 Bc7 Nf3 Qfd3 Rf1 h1R Ng1 h2 Nh3 Qf5 Rf3+ Ke2 Nf2 Kf1 Re3 Bb8 Nh3 Qf7 Qhg4 Nef5+ Kf4 Rg1 Kg5 Qh5+ Kf6 Bc7 Qf4+ Kg2 Qh6 Qhf3 Kf7 Kh1 Qh5 Bb8 Ke8 Bd6 Qb8 Rh7 Qb7 Bb8 Bg7 Bf4 Be5 Qcd6 Rc6 Qdc5 Rc7
1r3n2/B4p2/n2b1q1q/3r4/BBPR1R2/1kpbNK2/rb2N1Q1/1b1R1Q1N b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 e5 gxh5 exf4 c3 d5 Qc2 d4 axb5 cxb4 c4 Bf5 Qb2 Bc8 Qc3 dxc3 Kf2 Kd7 h4 Ke6 e4 a5 d4 g5 d5+ Kd6 e5+ Kc5 d6 g4 b6 g3+ Kf3 a4 h6 a3 b7 g2 d7 b3 e6 Kb4 h7 a2 h5 b2 h6 Qf6 d8R Kb3 e7 Bf5 e8N Ba3 Nc7 Bc2 Bd3 Qe5 Rd4 Bf8 Nd5 Bg7 Ne3 Qg5 Rh4 Na6 b8B Be5 Ne2 g1R Ba7 Ne7 Rg4 Rhg8 h8Q Rgb8 h7 Qh6 Qf6 Ng6 h8Q Nf8 Qhg7 Bd6 Qf5 Rd1 Nd2+ Ka3 Ne4 Kb3 Rb1 a1B Nf2 Rd2 Be4 Bd3 Bc6 Rd1 Nh1 Rd2 Kf2 f3 Rgf4 Rd1 Kg3 f2 Kf3 Rd2 Qg2 f1Q+ Kg4 Qf2 Bb5 Qfh4+ Kf3 Q4g5 Qfh3 Qgf6 Qf1 Rd1 Qhg2 Rd2 Bc5 Rd1 Bb4 Ra7 Bd2 Raa8 Rc1 b1B Be1 Bb2 Bf2 Nc5 Bg1 Ra2 Bd7 Rd2 Rd1 Na6 Bc6 Ra5 Bf2 Rd5 Ba4+ Ka2 Nf5 Ba3 Rde4 Kb2 Ba7 Rc2 Bd7 Kb3 Ne3 Ra2 Rd4 Bb2 Ba4+
6n1/R1kP1Rqq/2r4B/Q1n2BN1/1rn4p/BpR5/nQ1b1b1K/2N1rQ2 b - - 0 1 illegal: No possible last move
1nb3qN/r1p5/1QB1P3/b1qRBK2/Q2rr1p1/2nRN1N1/rk3b2/3R2B1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Bb2 g3 e4 Ke7 Ke2 Kd6 Kf3 Kc5 h4 f5 d6 g5 h5 g2 d4+ Kb6 d7 b3 h6 Ne7 h7 Nd5 Rh3 Bb4 Bc4 Re8 h8N Ra2 e5 Ka5 b6 Ka4 b7 Nc6 Ne2 g1B b8B g4+ Kg2 f3+ Kg3 f2 e6 f1Q Ba7 Nb8 Na3 Rf8 Qb1 Qc1 Nc2 Rg8 Bc3 b2 Bb5+ Kb3 Bc5 Qf8 d8Q f4+ Kh4 f3 Qd7 f2 Rd3 Ra7 Ng3 Ba5 Qc6 f1R Bb6 Ne7 d5 Rf2 d6 Nd5 d7 Rg5 d8R Qg8 Rd7 Qe3 Qd1 b1R Bc5 Rg7 Be5+ Nc3 Qb6 Re7 R7d6 Rd7 Kh5 Rf4 Bc6+ Rb4 R6d4 Rb2 Rc1 Ra2 Kh4 Rf7 Rd5 Rf4 Bcd4 Kb2 Kh5 Qe8+ Kg5 Re4+ Kf5 Qg8 Bc5 Qd4 Ra1 Qc4 Bf2 Qb5 Ne3 Rbd4 Qa4 Qb4 Qa6 Qc5 Rad1 Bh2 Nh5 Bg3 Bg1 Be1 Ng3 Bf2 Qb6+
q4qQ1/p1Nb3r/n6n/p2qR3/2B4r/3R1n1Q/NP1qBQ2/3RNKbk b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 g5 e4 b6 a5 bxa5 exf5 Qd7 Qe2 Qd6 Qd1 Qd8 f4 h6 g4 Bd7 d3 Be6 Be3 Bc8 Bf2 Bd7 Bh4 gxf4 g5 Be6 g6 Bc8 Bg5 hxg5 h4 Kd7 f6 Kd6 d4 e5 h5 c5 f7 e4 g7 e3 h6 e2 h7 g4 Rh5 c4 Rg5 g3 Qb3 c3 Qc4 c2 Nh3 f3 Nf2 g2 Re5 g1N Nc3 Na6 Na2 Bd7 Nd3 Nh6 Rd1 c1Q g8B Qcg5 Qb3 Be7 f8Q Rb8 Kf2 Rb7 Ne1 Qa8 Qf5 Rb4 Qh3 Bd8 Qc2 Bb6 Be6 Rf8 h8R Rf7 Rd8 Rh7 Rf8 Qg8 Nd3 Bb5 Rd8+ Ke7 d6+ Kf6 d7 Qg2+ Ke3 f2 Qc5 e1Q+ Be2 f1Q d5 Rd4 Bg8 Qb4 Ne1 Rh4 Bf7 Qg8 Qd4 Qf5 Qc5 Qc2 Kf2 Qcd2 Kf1 Qbd4 Be6 Qf8 d6 Q4d3 Bc4 Qde4 Rd5 Ba4 Rd3 Qed5 Re8 Bb5 d8N Kg5+ Qf2 Bc6 d7 Nf3 Qfg2+ Kf4 Re5 Bg1 Qf2 Bb5 Qhh2+ Kg4 Ne6 Ba4 Nc7 Bc6 Qf4+ Kh3 Qg5 Ba4 d8Q Be8 Qg8 Bb5 Qb6 Kh2 Qd7 Kh1 Qf2 Bc6 Qf5 Bd7 Qh3+
rkr3Nn/b5Q1/2pB1K2/1nQRp1n1/1B1q4/2N2P1q/B1N4Q/2rnRn2 b - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 g5 h4 gxh4 b6 a5 b3 a4 Qg4 a3 Qf3 Bd7 Qd1 Ba4 bxa4 Ra5 Nh3 Ra6 Ng1 Ra8 Ke2 Kd7 Ke3 Kc8 Kf4 h5 Kg5 c6 d4 h3 g4 e3 a5 a2 d5 c3 a6 h4 a7 c2 d6 h2 Ne2 h3 Nbc3 Qd7 Qd4 e5 Qc5 Nh6 Bd2 c1R Kf6 Na6 g5 Nf7 g6 Nc7 g7 Nb5 Nd4 e2 g8N e1N Nc2 Nf3 Bc4 N3g5 Re1 h1N f3 h2 Bb3 Qh3 d7+ Kb7 d8Q Nf2 Qde7+ Kc8 Rb1 a1Q Ba2 h1N Rb4 Nd1 Rd4 Ng3 Rd5 Bh6 Qf8+ Kb7 Qg7 Kc8 b7+ Kc7 Rh1 Nf1 b8B+ Kb7 Bd6 Qb2 Na4 Qd4 Bb4 Rc8 Nc3 Ra8 Ne7 Rhc8 Rg1 Nh8 Rh1 Nfe3 Re1 Nf1 Ng8+ Ngf7 Qg2 Be3 Qh2 Ng5 Be7 Rab8 a8Q+ Kc7 Qa3 Ra8 Bf8 Bf2 Qe7+ Kb8 Qg7 Qdh4 Qa5 Ba7 Bfc5 Qd4 Be7 Nc7 Qc5 Nb5 Bd6+
3BK3/r2r3Q/1pNN3B/5BR1/1Pr5/qrQR2bq/3p2rn/k2qnN1R b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 b4 a5 Qd3 axb4 Qf3 b3 Qd1 b2 Bd3 b6 Bf1 Ba6 Nf3 Bc4 Ng1 Bb3 axb3 Qc7 Ra2 Qc8 Ra1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 c4 h5 g4 d3 f4+ Kd4 c5 e5 g5 h3 c6 h2 c7 e4 c8N h4 f6 h3 f5 e3 b4 e2 g6 e1R f7 d2 f6 Ra7 g7 Bd6 f8R Re4 f7 Na6 Kc6 Nf6 g8Q Rh7 Na3 Kc3 Qa4 d1Q Bd3 b1R Bb5 d4 Bh6 Kb2 Ne2 d3 Ng3 d2 Ne7 Nc5 Nf1 Bg3 Bd3 Ng4 Nb5 Rc4 Bf5 Qd3 Nd6 Qa3 Rd8 Rd7 Rg1 h1R f8B h2 Bg5 Rg7 Qh7 Rf7 Rg2 Rg1 Bfh6 h1Q Bh4 Qh3 Bf6+ Be5 Rg3 Nh2 Rg5 Ra7 Rd7 Rg2 Rd8 Nb7+ Kd7 Nc5+ Ke8 Nd3 Nc6 Ne1 Be7 Bg3 Rd7 Rbc1 Bd8 R1c2 Rc1 Ka2 Rb1 Rb2 Qc2 Rg7 Nb7 Rf7 Rd3 Rg7 Nd6 Rgd7 Qc3 Rb3 Rc1 Rb1 Qc2+ Ka1 Rg8 Qe2+ Ne3 Nef3 Rh1 Ne1 Rg5 Qd1 Nf1 Rb3 Qc3+
bkQQ3b/N3N1BR/r4R2/RbPb1b2/4B2Q/4prnB/1Kpb4/4b2q b - - 0 1 illegal: No possible last move, all moves rejected
nQBqB2K/2rR1R1R/b3Bp2/5P1q/2b1Q2p/kq1rr2N/Q1b5/1q4N1 b - - 0 1 illegal: No possible last move, all moves rejected
6kq/2qrQ1Rp/1B5B/Q3RN1K/p1bR4/3n2B1/rr2P1Q1/nqrn1N2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Qf6 Kd2 Qe7 Ke1 Qd8 Kf2 Kf8 b4 a5 c4 f5 b6 d5 b5 d3 b7 d2 c5 d4 b6 d3 c6 Ra6 c7 Be6 c8R Nd7 b8B Nc5 b7 Nh6 Ra4 Nf7 Rh5 Nb3 Qe1 d1R Nd2 Na1 Bc7 Ne5 b8B Ra8 Re4 Bc4 g7+ Kf7 Ba7 Qe7 Bd6 Qc7 Bd4 Rd8 Bb6 Rd7 Rd8 Nc6 Rd4 Nb4 Kf1 f2 Kg2 f1R Kh3 Rf3+ Kh4 Re3 Ngf3 a4 Bbc5 Rb8 Re8 Rb5 Rh6 Rb6 Kh5 Rb7 Nh4 f3 Rd5 f2 Rd4 Rb5 Bb6 f1Q Bf4 Qg2 Re5 Qa8 Bh2 f4 Nf5 f3 Rhd6 Re7 Rd7 f2 Bf4 f1Q Bh2 Qf4 Nf1 Qfe4 Bf4 d2 Bh2 Qf8 g8Q+ Ke8 g6 Qb1 g7 Ra3 Qe6 Ra2 g8Q Nd3 Qgg3 Rbb2 Qg2 Qh8 Bg3 Kf8 Qd6 Kg8 Qa3 Re8 Rf7 Rd8 Qe7 Rd7 Qd5 Qc5 Qf2 Qc7 Qa5 Re1 Qf3 d1N Qc6 Nc3 Bh6 Rc1 Qg2 Nd1 Rg7+
2k4K/1PN3Q1/p1BqqN2/2n3pR/1bB2qQ1/1b1NrR2/B3bn1Q/2q3n1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a6 Ke1 h6 Bg5 hxg5 Ra4 f4 Ra3 Ra7 Ra1 Rc7 Kf2 Rc5 Ke1 Rf5 gxf5 Rh6 Kf2 Rh5 Ke1 Rh8 Kd2 d5 Kd3 Kd7 b4 f2 h4 g4 e4 g5 c4 f3 h5 g3 f6 g2 e5 Rh7 h6 Qb6 f7 Kd8 e6 Qc5 b6 Nd7 b7 Be7 b8Q Qb6 f8N Rg7 h7 Ngf6 h8Q Rf7 b5 Qd6 c5 Rg7 b6 Qc6 Nd2 Nh7 Ne2 g1N Nf4 Rg8 Rh5 Nhf6 Ne4 Ng4 Ra3 Rg6 Be2 f1B Nf6 f2 Qg7 Qd6 c6 Nc5+ Kc2 d3+ Kc3 d2 Kd4 Qd7 Bc4 Be2 Rf3 f1Q Nd3 Nf2 Ke5 d4 Qd6 Bb7 c7+ Kc8 Kf5 Ba8 Qh2 Bd5 Qa4 d1Q Ke5 Bd8 e7 Qc1 e8B Be7 Ne6 Bf8 Ba2 Bb3 Kf5 Qd6 Bc6 Rh6 Qb4 Rh8 Kg6 Qcf4 Ne5 Q1c1 Nd3 Be7 Qc4 Re8 Kh7 Bf8 Kh8 Qe7 Ne1 d3 Qb4 d2 Nd3 d1Q Qa4 Qfd6 Qg4 Qe3 Bd5 Qdc1 Bc4 Kb7 c8B+ Kb8 Bd7 Qef4 Ba4 Kc8 Bc6 Qed7 Nd4 Re3 Nb5 Q7e6 Nc7 Qd5 Qgh4 Nd7 Nfe8 Bb4 Qg4 Nc5 Nf6 Qdd6 b7+
1bBK4/1p2R1Qp/1Nk1R1qq/3n1N2/2qbq3/1QQ1b1r1/r3R2P/B4B1r b - - 0 1 legal: proof: e4 a5 b4 axb4 f3 d5 c3 bxc3 Qe2 dxe4 Qd1 e5 Ke2 e3 Ke1 e2 Kf2 Qd6 Na3 Qd7 Nb1 Qd8 Ke3 f6 Ke4 f5+ Ke3 Nd7 Kd3 e4+ Kc2 e3 g3 Nc5 g4 Ne4 fxe4 f4 Na3 Be7 Nb1 Bf5 gxf5 Bf8 Kb3 Kd7 Kc4 e1Q Kb5 g5 a4 c5 d4 c4 a5 f3 f6 e2 e5 f2 a6 c2 e6+ Kd6 e7 c3 e8B g4 d5 g3 a7 g2 f7 Kc7 d6+ Kc8 d7+ Kc7 Nd2 Kd6 Ra6+ Kd5 Ngf3 g1R Nh4 Qg5 Kb6 Bc5+ Kc7 Qg6 f8Q Bd4 Bb2 c1B Nf5 c2 Ba1 Ne7 Qg7 Rg8 Nc4 Be3 Re6 c1Q d8R+ Kc5 Qb3 Nd5+ Kd7 Qb4 Bf7 e1B Nb6 Qbc4 Be8 Q1c2 Bf7 Qe4 Rde8 Rg3 R8e7 Rge8 Bh3 f1Q Bg2 Qfd3 Bf1 Qd2 Rg1 B1f2 Rg2 Be5 Qc3 Bb8 Qb3 Bg1 Re2 Bd4 Qc3 Qdh6 Qb3 Rc8 Bg8 Rc7+ Kd8 Bge3 Bf7 Rg1 Be8 Rh1 Bd7 Rc6 Nc8 Ra6 Nb6 Ra2 Bc8 Bbf4 Re5 Kc6 Qc3 Rb8 a8Q Bg3 Qaa5 Ra8 Qab4 R8a3 R5e6+ Bd6 Re5 Bb8 Qbb3 Ra6 Re1 Rg2 Re2 Rg3 Rd2 Ra7 Re2 Ra2 R5e6+
3N3N/bP4pr/3r4/r2pN2q/2Q3rn/rBR4R/BR2bQ2/2Kbk1rB b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Nc6 Ke1 Nce7 Bg5 f4 Ra1 Nf5 gxf5 hxg5 Kd2 Ke7 c4 Kd6 e4 Ke5 b4 a5 h4 d3 c5 Kd4 b6 g4 h5 a4 b5 f2 b7 a3 b8R d6 h6 g3 f6 a2 c6 f3 f7 g2 e5 Qc7 b6 Qd7 h7 Qe6 c7 Kc4 Nc3 Ra3 Rh3 Ba6 c8B Ne7 Qc1 Qf5 e6 Qh5 Bb7 Ng6 e7 Nh4 e8B Ra5 Be4 d5 Ba4 Bc5 f8Q Kd4 b7 Ba7 Rb1 a1R Bb3 R1a3 Rb2 Bc4 Be2 f1R Na4 f2 Rc8 Re1 B2f3 f1R Nc5 Bb5 Bfd1 Rf6 Ba2 Rd6 Bdb3 Ba6 Bf3 Re4 Qc2 Rf4 Kc1 Ke3 Ne6 Rg4 Qc4 Bb5 Nd8 d2+ Kc2 d1B+ Kc1 Ba4 Rc7 Be2 Qff4+ Kf2 Qf8 Rg8 h8N Ke1 Qf6 Re8 Qff4 Ree6 Be4 Rh6 Nf3+ Kf1 Rc5 g1R Ne5+ Ke1 Bh1 Rh7 Qa6 Bab5 Rcc3 Bd1 Qb6 Bf1 Qc4 Bfe2 Qf2+
k1bn2B1/1p3R1R/1Q1Q2R1/5Pr1/r2r3n/brr1Nr1r/1N1Q2p1/1K1B2B1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 axb4 e4 fxe4 g4 h5 d4 hxg4 Nd2 c5 Nb1 c4 Be3 Qc7 Bc1 Qc5 dxc5 Ra5 Ne2 Ra7 Ng1 Ra8 Kd2 Kd7 Kc2 Kc7 h4 e5 a4 g5 f4 c3 c6 e3 d6+ Kb6 h5 Ka7 a5 e4 h6 e2 d7 e1R d8Q g3 h7 g2 a6 g4 c7 g3 f5 e3 Nf3 g1R Nd4 e2 Na3 b3+ Kb1 b2 Be3 Bb4 Qd6 Nc6 Nc4 Nge7 Nc2+ Bc5 Bd4 Ng6 N2e3 Nh4 Rh3 Rd8 h8R Rg2 Rf8 c2+ Ka2 c1R Qd2 b1R Rf7 Red1 Nb2 e1R Be2 Rf1 Rh2 Rde1 Bd1 Rf3 Rh1 Rc3 Rh2 Kb6 a7 Rh1 Rh3 Ka6 Rh2 Ba3 Bb6 Ng6 Rhh7 Rh3 Bc5 Nh4 Bd4 Rbc1 Bb6 R1c2 Kb1 Rb3 Ra2 Rcc3 Bc5 Be6 c8B Rg1 Bd7 Rg2 Be8 Bc8 Bd7 Rg1 Be6 Rg2 Re7 Rd7 Bg8 Rg1 Bb6 Nd8 Ref7 Rg2 Qh6 Rd4 Qd6 Rgh2 Ra1 g2 Ra2 Rhg3 Ra1 Rhh3 Ra2 Rb8 Ra1 Rg5 a8Q+ Kb5 Qa7 Ra8 Qab8 Raa4 Qbc7 Ka6 Bc5+ Rb6 Qcc6 Ka7 Qb5 Ka8 Qa5+ Ra6 Qab6 Rab4 Ra2 Rbb3 Ra1 Bb4 Ra4 Ba3 Rb4 Rdd3 Rg4 Rd4 Rg3 Raa4 Rg4 Rh5 Rg6 Rg5 Nf1 Rdg4 Bg1 Rgd4 Ne3
1B2B1N1/1nn3K1/1RbpNr1N/1Q1p1B2/bR1P1Q2/3R3r/1b6/k1b1bnb1 b - - 0 1 legal: proof: c4 h5 f4 e5 d4 exf4 a4 b5 g4 hxg4 axb5 Qe7 c5 Qd6 cxd6 cxd6 Qd2 d5 Qd3 Ba6 Qd1 Bc8 Kd2 g5 Kd3 a5 h4 f5 b4 f3 e4 d6 e5 Kd7 b6 Kc6 h5 Kb5 e6 f4 h6 f2 h7 g3 b7 a4 e7 g2 e8B+ Nc6 b8Q+ Bb7 Ba3 g4 Qf3 g3 Nd2 Nf6 Nh3 g1B Rd1 g2 Ne4 Bh6 Nhg5 Rf8 Qe3 f3 h8N Ra7 Be2 f1B Nhf7 Bf2 Qf4 g1B Ne6 Be1 Rb1 f2 Rh3 Bg5 Nh6 Ra6 Rf3 Bh3 Re3 f1N Bg4 Ra7 Ke2 Kc4 Kf3 Na5 b5 Bc6 b6 Nb7 Bc5 a3 Bf5 a2 Rd3 a1B Rbb3 Bb2 Rb5 Nh7 Nf6 Ra3 Nfg8 Rf6 Rbb3 Nf8 Rb5 Bg2+ Kg4 Bh3+ Kh5 Rc3 Qf2 Bgc1 Qf4 Bg4+ Kg5 Bd1 Rb3 Nd8 b7 Bc2 Rb5 Ba4 Ba7 Ra3 Rb6 Rc3 Ra6 Kb3 Rb6+ Ka2 Kh5 Ka1 Rb4 Nh7 Rb6 Ng5 Rb4 Rf8 Kg6 Rf6+ Kg7 Ra3 Qc8 Rb3 b8R Nb7 Qd7 Ra3 Rd2 Rh3 Rd3 Ne4 Rb6 Nec5 Rb4 Na6 Rb6 Na5 R8b7 Nc7 Bb8 Rh4 Rb4 Rh3 R7b6 Nb7 Qc8 Nd8 Qa6 Nb7 Qb5
3r4/k5PK/nnRRp1n1/1q1B1q1N/B5bq/3r4/pNq1Q2Q/1Bn1Q1N1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 g4 Nh6 h4 Na6 f4 Nb8 f5 Na6 Bf4 gxf4 g5 Ng8 g6 Nb8 Kd2 Bh6 Ke1 Bg5 hxg5 Ba6 Nh3 Bb7 Ng1 Bc8 Kd2 a5 b4 h5 c4 d5 g7 Kd7 g6 Kc7 b6+ Kb7 c5 e3+ Kd3 e2 b5 f3 f6 a4 f7 f2 f8N a3 Qc1 h4 Nd2 a2 Qe1 h3 Rc1 h2 Nh7 Bg4 Nf6 Qd7 Nh5 Na6 Nc4 Rd8 c6+ Ka8 b7+ Ka7 Bg2 f1Q c7 Qdf5+ Be4 Rh7 c8B e6 Nb2 Ne7 g8B Rf7 g7 Ng6 Bh7 Rfd7 Rc6 Rd6 Kd2 d3 Ke3 d2 Bd7 d1N+ Kd4 Nc3 Ke3 Nb4 Bb1 Na4 b6+ Ka6 b8Q d4+ Kd2 d3 Ke3 d2 b7+ Nb6 Be8 Rd4 Qe5 d1Q b8Q Qdc2 Rd6 Nd3 Ba4 Nc1 Qe4 Qb5 Qf3 Rd3+ Ke4 Nf8 Kf4 Qh3 Bf5 Ng6+ Kg5 Qh4+ Kh6 Qf6 Qc8+ Ka7 Kh7 Qg5 Be4 Qgf5 Qd1 e1N Bd5 Qd2 Qf2 Nc2 Qfe2 Nb4 Qde1 Na6 Qc2 Qd1 Nf3 Qd2 Rf1 h1Q Ng1 Qh4 Rf4 Qb3 Rc4 Qb5 Rcc6 Qc3 Qcd2 Qcc4 Qh2 Qc2 Qde2
1r1QQ1r1/R1p2K1n/2Q1B2B/pb1qN3/6b1/1rkPqRRN/3bB1b1/3r4 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 h4 g5 g3 Nc6 Qb3 Nd4 Qd1 Ne6 Rh2 g4 Rh1 Ng5 hxg5 fxg3 b4 Kd7 e4 Kd6 Ke2 Ke5 Ke3 a5 b6 f5 b7 h5 b8R c3 g6 g2 b5 h4 g7 c2 b6 h3 b7 h2 Nh3 g1R Ra3 g3 Be2 Nf6 g8B g2 Be6 f4+ Kf3 Kd4 e5 Nh7 Kg4 f3 Kh5 f2 Kg6 f1B Rf3 Bh6 d3 Qd5 Nd2 Rg8+ Kf7 Kc3 Nc4 Bd2 Qe1 Bd7 Rc8 Bc6 b8Q Bb5 Qb6 Rb8 Qh4 Rg6 Qc6 Rg8 Bd1 Be2 Qd8 Re1 Rg3 Bg4 Be2 Rd1 Rf1 g1Q Rff3 Bf4 Be3 h1B Bc1 Bg2 Be3 Rb7 Ra8 c1R Ra7 Rb1 Bc1 Bh6 Be3 Rb8 Bf4 Bg7 Bh6 Rb3 Bc1 Qe4 Bf5 Re1 e6 Rd1 e7 Qd5+ Be6 Bh6 e8Q Qgc5 Bg5 Qb6 Ne5+ Qbc5 Bf6 Bf4 Bg7 Bd2 Qa8 Qb6 Bh6 Qe3 Qac6+
1R3Q2/pb2N1K1/4r1np/P6b/BNNBb1Q1/n4r1B/nR4R1/1kbn3n b - - 0 1 legal: proof: c4 d5 f4 e5 b4 c5 bxc5 dxc4 h4 exf4 g3 g5 Rh3 g4 Rh1 Qg5 hxg5 fxg3 e4 Ke7 Ke2 Ke6 Ke3 Ke5 a4 b5 c6 f5 d3 b4 c7 g2 a5 f4+ Ke2 Kd4 g6 g3 Kf3 b3 g7 c3 e5 h6 e6 c2 Kg4 f3 Kf5 f2 Kg6 b2 e7 Nc6 e8N Ne5+ Kh5 Nc4 Kg6 Na3 Ra2 Bb7 Nc3 b1B Bb2 c1N Nd6 Re8 Nh3 g1N c8Q g2 Nf4 Nh3 Rh2 g1N Qdg4 Nge2 Ncd5+ Nc3 Nb4 Ne7+ Kf6 Ng6 g8B Re4 Bb3 Re6+ Kf7 Be7 Qf8 Bg5 Rg2 Rh7+ Kg8 Rf7 Ba4 Ke3 d4 Kd2 d5 Nd1 Bd4+ Bc2 Ne2 Rf3 Rb2 Na2 Ng3 Kc1 Kg7 Be4 Nc4 Be3 d6 Bf4 Rc2+ Kb1 d7 Be3 d8R Bc1 Bd3 f1B Rb8 Nhf2 Nf5 Be2 Ne7 Bed5 Bf5 Be4 Qg3 Nh1 Bh3 Rb3 Qgf4 Bh5 Qg4 Rf3 Rb2+
BQ2b1N1/Q5P1/nrRKB2p/pQr3b1/1R2b3/2r2n1r/Nn2B2k/2R3n1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 g4 e5 h5 b5 axb5 e4 Bf4 gxf4 g5 Qf6 Kd2 Qg6 f3 exf3 hxg6 f2 Kd3 Ke7 Ke4 Kd6 b4 f5+ Kf3 Ke5 e4 a5 c4 d5 c5 d3 b6 d2 b5 d4 g7 d3 b7 Nf6 g8R Nfd7 c6 Be7 g6 Ra6 g7 Rb6 c7 Na6 b8Q Bb7 Rh2 Bg5 Qe2 d1B Rh4 d2 Qa7 Ba4 c8B d1N Nh3 Nb2 Nc3 h6 Bg2 f1R+ Nf2 Rc1 Na2 Rc5 Rc1 Bd5 Rd8 Re8 Qd3 Ree6 Rf8 Rec6 Rf6 Rc3 Bf1 R6c5 Be2 Ba8 Rc6 Bb7 Kg2 f3+ Kg3 f4+ Kg4 Ndb8 Be6 Nd7 Nh1 f2 Ng3 f1N Nf5 f3 Ne7 f2 Ng8 Ng3 Qb1 Kd4 e5 f1R Qf5 Rh1 Qf1 Nh5 Kf5+ Ke3 Rc4 Nf4 Rb4 Kd2 Ke4 Nh3 Kd4 Ng1 Qf5 R5c4+ Kd5 Ke3 Kd6 Rh3 Qb1 Kf4 Qd3 Ba8 Qb1 Rb8 b6 Kg3 b7 Rc5 Qd3+ Kh2 Qb5 Rf8 b8Q Rf6 Rc7 Be4 Rc6 Rff3 Bg4 Rf4 e6 Ne5 e7 Nef3 e8B Rf7 Be6 Rb7 B8d7 Rb6 Bd5 Bg6 Be4 Bc2 Bd5 Be8 B5e6 Bcg6 Bc8 Bh7 Bb7 Be4 Ba8
rk1b4/Rb3QbK/qqpR2BN/8/2rQ4/QN1r2B1/1qpP4/R1b1bN2 b - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 h4 f5 c4 fxe4 f4 dxc4 g5 Nd7 f5 Nc5 Nf3 Nf6 Ng1 Ne6 gxf6 g5 Bd3 g4 Bf1 Ng5 hxg5 Ra6 Bd3 Ra7 Bf1 Ra8 Ke2 Kd7 Ke3 e5 a4 h5 f7 b5 g6 c6 a5 Kc7 g7 h4 g8N c3 a6 h3 f6 g3 a7 h2 Qh5 g2 Qd1 c2 Ra6 b3 Qg4 b2 Ra3 b4 Rc3 b3 Qg7 Bb7 Nf3 Rh3 Bd3 Qc8 Na3 b1Q Nh6 b2 Nc4 Ba3 Na5 Qa1 Rb3 b1Q Bb2 Qd8 Rd1 h1R f8Q+ Kc8 Bd4 Qbb2 Qff7 Qb6 Rc3 Rh4 Nb3 R1h3 Rc5 Qaa2 Rd5 Qaa1 Rd6 g1B+ Ke2 e3 Bg6 e4 Be5 Rg4 Nh2 Rf4 Nf1 Rg4 Ke1 e2 Bg3 Bd4 Rc1 Qaa2 Ra1 Bc3 Na5 Qc4 Nb3 Qca6 Qh8+ Qd8 Kf2 e1B+ Kg2 e3 Kf3 Rc4 Qhg7 Bd4 Kg4 e2 Kg5 Qdb6 Kf5 Bef2 Kg5 e1B Kf5 Rb8 a8R Bc3 Ra7 Ra8 Bh7 Kb8 Kg6 Qd8 Qh8 Bb6 Kg7 Bc7 Bg6 B7a5 Kh7 Bc7 Bf2 Rd3 Bg3 Bb6 Qe6 Bba5 f7 Bg7 f8Q Bb6 Be8 Ba5 Qef7 Qdb6 Q8e7 Qbb5 Qe3 Bd8 Qd4 Qbb6 Qc3 Bf8 Qhd4 Bg7 Qa5 Qc3 Qb4 Bc1 Qa3 Qb2 Qf5 Qa4 Bg6 Qaa6 Qf7
b2Q4/BQRq4/1rBp2KN/3RbQpN/1br2qP1/b1N5/qk2bq2/4B3 b - - 0 1 legal: proof: b4 a5 h4 c5 a4 f5 d4 cxd4 h5 b5 Nd2 Nh6 Bb2 Ng4 Bc1 Na6 Nb1 Nc7 Nd2 axb4 Nb1 b3 Rh3 b4 Rh1 Nb5 axb5 g5 e3 Ne5 e4 Ng6 hxg6 fxe4 Kd2 h5 g4 e5 c4 Ke7 f4 Ke6 c5 Kd5 b6 h4 g7 h3 g8N d3 Ke3 Kc4 f5 b2 b7 h2 b8Q b3 c6 Qf6 c7 Ba3 Qe2 Ra6 Qg2 Rb6 Nc3 b1Q Qf3 b2 Na2 Kb3 Qg3 d2 Ne2 d1Q Nac3 Ba6 c8Q Qa2 Qf3 b1Q Qd8 Qbb2 Nf4 Be2 Nh5 Qf7 Rg1 h1B f6 d6 Bd2 Qd7 f7 Qdc1 f8B Qbc2 Qa7 Kb2 Qf5 Bhf3 Bg7 Bg2 Kf2 e3+ Kg3 e4 Qb7 Bh1 Bg2 Qf1 Bd4 Qf4+ Kh3 Rh7 Rad1 Re7 Rc1 Re5 Rgd1 Rc5 Be1 Rc4 Nh6 Qd2 Bh4 Qe1 Bc5 Qef2 Rd5 Bf3 Ra1 e2 Rc1 e1B Bg3 e3 Bh4 Rb3 Ba7 e2 Bg3 Rb6 Bh4 Qf1 Bg3 Bf2 Bh4 Bd4 Be1 Qe4 Kg3 Qg1 Qff8 Be5+ Qf4 Qh2+ Kf2 Qef5 Ke3 Qf6 Qf5 Qg1+ Bf2 e1B Kd3 Bd2 Be1 Bd1 Bf3 Qf2 Bg2 Bd4 Ke4 Be2 Bf3 Qf8 Qe6 Bf6+ Kf5 Be5+ Kg6 Qf4 Qf5 Bg2 Rd4 Bh1 Bc6 Bhf3 Rd5 Be4 Nb1 Bdb4 Nc3 Q2f3 Ba4 B2d3 Rd4 Qc6 Qbc7 Be2 Nb1 Qd7 Bb5 Ba8 Qb7 Rc3 Rd5 Rcc6 Rc4 Rc5 Nc3 Qf2 Ba4 Rcb5 Rc8 Rc5 Bc6 Rc4 Rc7
R1B5/r1n1nkr1/2RQ1p2/bpp5/1B3NN1/2bb1K2/qP4Qr/Rn2N1Q1 b - - 0 1 legal: proof: f4 b5 g4 e5 c4 exf4 a4 d5 cxd5 h5 a5 Bb7 a6 Bxa6 gxh5 Bb7 Qc2 Bc8 Qh7 Nh6 Qg8 Nxg8 Kf2 a5 d4 g5 e4 c5 h4 g4 h6 a4 h5 a3 d6 f3 h7 a2 d5 Ba6 h6 Bb7 e5 Bg7 d7+ Ke7 d6+ Kf8 e6 Nf6 Nc3 Be4 Nd5 Na6 Nf4 Nc7 Bh3 Ra5 Bd2 Bd3 Bb4 Qa8 d8N Ra3 d7 Nfd5 Nc6 Ra7 Ne5 Ne7 Rh2 Rg8 h8Q g3+ Ke3 f2 h7 f1R Ng4 g2 Nf3 Rh1 Ne1 Bc3 Qd4 g1B+ Rf2 Bh2 h8R Bg3 Qd6 Rh2 d8Q+ Kg7 Rf3 Qd5 Qa8 Qc4 Rf1 f6 Qg2 Qb3 Kf3 Qa3 Rd1 a1N Rg1 Qa2 Rf1 Ng6 e7 Nb3 e8Q Ne7 Qg6+ Kf8 Qg5 Kf7 Rh1 Rg7 Ra8 Bf2 Rf1 Be3 Qg1 Bed2 Ra1 Qb1 Ra6 Qa1 Rc6 Qa2 Ba3 Ba5 Bb4 Bc3 Qgd5+ Ne6 Qe4 Nc7 Qe2 Na1 Qeg2 Nc2 Nf2 Na3 Bc8 Nb1 Ng4 Qc4 Nc2 Qa2 Rd1 Na3 Ra1 Nb1 Ne1
q1Q3Q1/1nK2Rp1/3nb1N1/1r6/NN2bPq1/B2p1Rr1/BpR3kB/1q2n3 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Nb1 f5 exf5 h5 g4 hxg4 a3 b5 Ke2 e6 Nc3 b3 Kd2 b2 Nb1 b4 Ke2 b3 Ke1 Bb4+ axb4 Rh3 Ne2 Rh4 Ng1 Rh8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 Kd6 d3 h4 e5 c4 d2 c5 g3 b5 g2 h5 Qg5 c6 Ne7 b6 Ra3 c7 Rh7 h6 Qf4 f6 Nbc6 f7 Nd8 f8R Qf3 Nh3 g1Q b7 Qgg4 b8B Bb7 c8Q Nf5+ Kc7 d5 Ba6 d4 Rf7 Nd6 Rf1 d3 Qc2 d1B Nf4 Ra5 Nd5 Rb5 Nb4 Bc6 Ra4 N8b7 Qg8 Bd5 Ra2 Be6 Qc5 Qh1 Qc2 Bf3 Qc3 Rh8 h7 Bg2 f4 Bf3 Ba7 Bg2 Bf2 Kf3 Bg1+ Kg3 Qc6 e4 Nc3 b1Q Na4 e3 Rc2 e2 Ba3 Be4 Bh2+ Kg2 Rf3 b2 Qce8 Bd7 Qc8 Be6 Rc5 e1N Rc3 Rh5 Bc4 Rh3 Ba2 Rg3 Qgd8 Rg8 h8N Rf8 Ng6 Rh8 Qf6 Rh5 Qfd8 Rb5 Qh8 Qg1 Qhd8 Qa7 Qg8 Qa8 Rc2+
2NR2Q1/1RpP4/6p1/2b1p1n1/2q2qrR/2rNkBb1/r1BQ1n2/Q1KBq3 b - - 0 1 illegal: No possible last move
K1k2b2/pn1qb1R1/1rQR3p/1Q1P1q1R/1n1N1B2/1NBQ1r2/2q2n1p/6N1 b - - 0 1 illegal: No possible last move, all moves rejected
1rbqnN2/k4KpR/3br1Pb/1BN5/pR2b3/5Rp1/1B4BN/QQ2b1n1 b - - 0 1 legal: proof: f4 d5 e4 e5 g4 h5 b4 b5 a4 d4 g5 Bd7 Qg4 hxg4 Ra3 Bc8 axb5 exf4 Re3 d3 cxd3 fxe3 d4 Rh7 d5 Rh8 Ke2 Kd7 Kd3 c5 Kc4 Kc7 d4 Kb7 h4 f5 d6 a5 Kd5 e2 g6 e1B h5 a4 d7 g3 Ke6 c4 h6 f4 b6 f3 d5 c3 d6 c2 e5 f2 h7 Ra7 b5 Qc7 Kf7 Nc6 e6 Nb8 e7 Ra8 e8B Na6 Nd2 Rb8 Bg2+ Qc6 d8Q f1B d7 Ra8 Nb3 Rb8 Qf6 Nc7 d8N+ Ka8 b7+ Ka7 b6+ Ka6 Bb2 c1B Nf3 Nd5 Ne6 Nc3 Nh2 Bd3 Rf1 Be4 Rf3 Bd6 Nf8 Ne2 Qe5 Nf6 Nc5+ Kb5 Qc3 Ng1 Qa3 Be3 Qa1 Bh6 Bd7 Rg8 h8R Ne8 Rh7 Ka5 Rf4 Qc7 Rf3 Qd8 Bb5 Ra8 b8Q Ra6 b7 Kb6 Qc7+ Ka7 b8R+ Beb7 Qa5 Be4 Qb4 Bh3 Ncd7 Qc7 Bbf1 Ra5 Ne6 Nf6 Qd2 Re5 Rb4 Rb8 Qc2 Ne8 Bb5 Qd8 Nec5 Bhf5 Nf8 Bc8 Qd3 Re6 Qdb1
2b2r2/1R1PpnNN/QBR3R1/6qN/2B3pp/rnbK1kQ1/2nB1b2/3b4 b - - 0 1 legal: proof: c4 f5 e4 d5 exd5 b5 a4 Ba6 g4 fxg4 h3 gxh3 a5 Bc8 cxb5 Bg4 a6 Be2 Qc2 Nxa6 Qd1 Nb8 d4 Kf7 Kd2 Kf6 f4 Kf5 b4 Kg4 f5 a5 b6 c5 f6 g5 f7 h5 b5 h4 b7 h2 d6 a4 d5 a3 b6 c4 d7 a2 d6 Ra5 Nc3 Bf3 Qe2 Ra3 Nb5 c3+ Kd3 Bg7 f8N Na6 b8Q Bf6 b7 Qa5 d8B Bd4 d7 Bf2 Nh7 Nh6 Nd6 Nf7 Bd2 Rf8 Rc1 a1B Nf5 Bb2 Qe6 Bd1 Ne2 Kf3 Rg1 h1B Neg3 Qc5 Nh5 c2+ Qb3 Bf6 Qc8 Bc3 b8R Qa5 Rb7 Nb4+ Kc4 Qe5 Bb6 Qg3 Nfg7 Bg2 Ra1 c1N Qa8 Nc2 Qa6 Ra2 Qba3 Nb3 Kd3 Qg4 Qd6 Ra3 Rc1 Bh1 Bh3 Qg3 Be6 Bg2 Bc4 g4 Re1 Qf4 Re6 Qg5 Rg6 Nca1 Ne8 Ba5 Neg7 Bb4 Rc3 Nc2 Rc7 Bh1 Ra7 Kg2 Be6 Ba5 Rcc7 Bb4 Bc4 Bc3 Nf4+ Kg3 Rc5 Bd5 Nfh5+ Kf3 Rcc7 Ba8 Rc6 Bb7 Qb8 Bc8 Rb7 Qf6 Qc7 Qg5 Qg3+
N2R4/rpk4K/1Rn1r3/1QN4B/2rB2R1/1bpQ2nq/pP3r2/qNQ4b b - - 0 1 illegal: No possible last move
R4nKQ/pB6/q1bnBr2/PB5p/1NQN4/bq2R1kp/4rRb1/2b1N3 b - - 0 1 legal: proof: b4 b5 c4 d5 h4 g5 a4 gxh4 Ba3 e5 cxd5 c5 bxc5 b4 f3 bxa3 f4 exf4 Kf2 Kd7 Kf3 f5 e4 h5 d4 a2 g4 h3 d6 Ke6 g5 Na6 g6 Nf6 d7 Qc7 d8Q Be7 e5 Nd5 g7 Bh4 g8B+ Qf7 c6 Rh6 a5 Nf6 c7 Bd7 c8B Ne4 Qe2 Rg6 Nd2 Nb8 Nb3 Rh6 Rh2 Bg3 Re1 a1B Rf2 Rf6 Bb7 Nd6 Qa2 Bh2 Bb5 Bb2 Re3 Ba3 Qf8 Bc6+ d5+ Kd7 e6+ Kc7 e7 Nd7 Qh6 Re8 Qg7 Nf8 Nd4 Kd7 Qc4 Bc1 Ke2 f3+ Kd3 f4 Qh8 Bg3 Kc3 Bh4 Kb4 Bg3 Kc5 Kc7 Rfe2 f2 Ngf3 f1Q Ne1 f3 Rf2 Qe6 Bf7 Qd3 Bg8 Qb3 Bf7 Qc8 Be6 Be5 Nf5 Beb2 Nd4 Rd8 e8R Rd7 Ndc2 Ba3+ Nb4 Rg7 Kd4 Rg2 Ke5 Rh2 Rf1 Re2 Rf2 Qd7 Ra8 Qc8 Rh2 f2 Rg2 f1B Rf2 Ne4 d6+ Kd8 d7 Ke7 d8N Nd6 Bg4 Bfg2 Ne6 Kf7 Nd4+ Kg6 Be6 Kg5 B7a6 Kh4 Bb7 Rf3 B7a6 Kg3 Bb7 Nf5 Kf6 Nd6+ Bf5 Qe6+ Kg7 Qc8 Re4 Rf4 Be6 Rf5 Kg8 Rf6 B7a6 Qb7 Re5 Qb6 Bb7 Qa6 Re3+
1k1qR1B1/2NrR2r/1bq1p3/1pN1Pn2/3qr1Q1/K1BQ1R2/pQ6/3r2Bb b - - 0 1 legal: proof: b4 c5 h4 b5 g4 f6 g5 fxg5 c4 Na6 a4 Nc7 a5 Nd5 Bb2 cxb4 Ba3 gxh4 Bc1 Nb6 axb6 d5 cxd5 h3 d4 Kd7 Kd2 g5 Kc2 h5 Kb3 a5 e4 g4 f4 h4 d6 g3 f5 g2 b7 h2 b8R h3 d5 Bg7 f6 Rh5 e5 Rf5 f7 Rf6 f8B Nh6 Ne2 g1Q Nec3 Nf5 Na4 Ra7 Nbc3 Bh6 Bd2 Bb7 Qg4 Be3 Bc4 Bb6 Rf1 Qd4 Rf3 Ba8 Kb2 b3 Ka3 b2 Rc1 b1R Nc5+ Ke8 Be3 h1Q Bg1 h2 Rd1 a4 d7+ Kf7 Rd2 Rd1 d6+ Bd5 Ra8 Rh6 Rc2 Rh4 Bh6 Qg2 Bd2 h1R Rb8 Kf8 Rb7 Be4 Bg8 e6 Nd5 Rh7 Bc3 R1h4 Nc7 Qh1 Kb2 a3+ Kb3 a2 Rc1 Qe8 d8Q Bc6 Qc8 Qd8 d7 Ke7 Rb8 Be4 Qa6 Bc6 Qa3 Qg2 Qb2 Ba8 Rd3 Qc6 Rf3 Rb7 Qh3 Rg4 Ka3 Re4 Rc2 Qc8 Rg2 Kd8 Rg7 Ra7+ N7a6 Rc7 Re7 Ra7 Qg4 Rb7 Nb4 Kc7 Nd5+ Kd8 Qgg2 Reh4 Kb3 Qe4 Bf7 Qd6 Rd3 Qf3 Bg8 Ra4 Nf4 Kc7 Qg4 Qf2 Re3 Rba7 Rd3 Bh1 Rf3 Re4 Ra8 Qb7 Rae8 Qc8 d8Q+ Kb8 Qd7 Qc6 Qd3 Rd7 Nd5 Qd4 Ka3 Qd8 Nc7
6n1/1QbPRb1q/2Q1Rpk1/rN1p2Np/4Q1q1/5q2/2b1B1Nq/1BR1K2n b - - 0 1 legal: proof: d4 d5 h4 Kd7 a4 g5 c4 gxh4 Bf4 dxc4 d5 b5 axb5 Nc6 d6 Ke6 d7 Nb8 e4 a5 Bd6 exd6 f4 Ke7 e5 Ra6 e6 Rc6 Bd3 Rc5 Bf1 Re5+ fxe5 Bh6 Qf3 Bg7 Qd1 Bf8 b4 c5 g4 h5 g5 h3 b6 a4 b5 h2 g6 c3 g7 c2 b7 c1Q b6 a3 Nd2 c4 Ra2 c3 Bg2 c2 Nb1 f6 Bf1 Qb2 Nf3 c1Q Ng5 Qf4 Qd4 Na6 b8Q Nc5 b7 Qg4 Qa8 Ne4 b8Q Ng3 Qc6 Ba6 Be2 Bc4 Qbb7 Qa8 Nc3 Bd5 Ra1 a2 Rc1 a1Q Qe4 Qab1 Nd1 Bb3 Rf1 h1B Ne3 Bc2 Ng2 Qaa3 Rf3 d5 Rb3 Q2a2 Rb6 Qaf3 Qd4 Bg6 Qe4 Bf7 Ra6 Kd8 Rb6 Bd6 Ra6 Ke7 Rb6 Nh6 g8B Bc7 Bh7 Ra8 Bg6 Kf8 e7+ Kg7 e8R Ng8 e6 Ra5 e7 Qac2 Rd8 Kh6 e8N Qcb2 Nd6 Qe5 Nf4 Bg2 Bf5 Nh1 Nb5 Bf1 Ng2 Qh2 Re8 Kg7 Bd1 Bd3 Re7 Bc2 Be2 Qbb3 Qc5 Qbd3 Rbe6 Kh6 Qcc6 Kg7 Qf4 Qde4 Bh7 Qg6 Qfc4 Qh6 Bhd3 Qh7 Qe4 Kh6 Bc4 Kg7 Ba2 Kh6 Bb1 Kg7 Qd4 Kg6 Qe4+
1Qnn4/bBpk4/1q1Q2nn/b2b1BB1/pNQ4N/K6p/3R1Pq1/2N2r1R b - - 0 1 illegal: No possible last move
brr1R2b/3B1p2/1n2B2n/1Nr2RQp/2Pb1p2/3QbQr1/1N5K/3Rk2B b - - 0 1 legal: proof: e4 b5 f4 g5 a4 gxf4 axb5 d5 b6 dxe4 Qe2 c6 Qd1 c5 g4 Nc6 h4 Bd7 b4 Nb8 h5 Bg7 g5 Bc8 b5 Qd6 Ba3 Qg6 hxg6 Bf8 Bb4 cxb4 Kf2 Kd7 Kg2 Ke6 d4 Kd5 c4+ Ke6 g7 Kf5 g6 a5 b7 e5 b6 h5 d5 e3 d6 Ke4 d7 e2 d8Q Ke3 Nf3 e1B Rh2 b3 Nd4 e4 Nc3 a4 Qg5 b2 Qf3+ Kd2 Ndb5 b1R Nd1 a3 Nb2 Nd7 b8R a2 b7 Nh6 g8B e3 g7 e2 Bh7 Rg8 Bf5 Nb6 Be6 Bc5 Kh1 Be3 Bfh3 Bd7 Re8 Rc8 b8Q Bc6 Qd6+ Bd5 Rg2 B1f2+ Kh2 e1R Bd7 Bd4 Bhe6 Re5 Qda3 Ke1 Qad3 Bfe3 Rd2 Rh8 g8B Ba8 Bh7 Rg8 Bhf5 Rec5 Bh3 Bh8 Bg2 Rg7 Bh1 Rg8 Nd1 Rb3 Rb1 a1B Rbb2 Rc3 Ra2 Rb3 Ra5 Bad4 Nb2 Rb4 Qh4+ Rg3 Qg5 R5c6 Na3 R6c7 Rf5 Rc5 Nb5 Nd5 Nc3 Rbb8 Nb5 Nb6 Rd1#
r1b3BK/B1p4N/n2PN3/4kBN1/2R3q1/1Qr1qrp1/2r2rp1/1RQ1Q1q1 b - - 0 1 legal: proof: f4 d5 e4 h5 g4 hxg4 d4 a5 b3 e5 b4 axb4 c3 Nd7 c4 Nb6 Bd2 Bd6 Be3 dxc4 Bc1 Nd5 exd5 e4 Ba3 Ra5 Bc1 Be5 fxe5 Ra8 Kd2 Kd7 Ke3 b5 Kf4 g5+ Kf5 f6 Kg6 f5 Kg7 g3 a4 g4 h4 b3 d6 Ke6 d7 b4 a5 b2 a6 b3 a7 g2 h5 g3 h6 e3 d5+ Ke7 h7 f4 e6 Kd6 e7 c3 e8Q f3 Rh4 f2 Nf3 e2 Nbd2 b1R Ng5 e1Q Bd3 f1R Rc4 c2 Bf5 b2 Ndf3 Ne7 Be3 c1R Qb3 Rf8 h8Q Rc2 Nh7 Rff2 Nfg5 Ke5 d6 Rbc1 Rb1 Qd2 Bc5 Qe3 Qg8 Rc3 Kh8 R1c2 Bb6 Rf7 Qg6 Rf3 Qh6 Rff2 Qh1 Rf3 Qc1 Rff2 Qf8 Nc6 Qe8+ Qe7 d8N Nb8 Bc5 Na6 Nde6 Rf6 Bb6 Qf7 Qe7 Qh5 Qe8 Qg4 Bc5 Rb8 a8B Rf3 Bd5 Ra8 Ba7 Rf7 Qe1 Rf6 Qc6 Rf7 Ra1 b1Q Qc5 Qd1 Rb1 Qdd4 Qca3 Rff2 Qac1 Qc5 Bg6 R7f3 Bf5 Qb6 Nd8 Qc5 Bg8 Qcd4 Nde6 Qd1 Qed2 Qg1 Qde1
1r1N1bB1/B2Q1bB1/2N1p1PK/1r6/q1rR1pQR/qN3pr1/4kr2/1q5R b - - 0 1 legal: proof: g4 c5 e4 d5 h4 g5 b4 a5 f4 gxf4 g5 axb4 d3 Nd7 d4 Ne5 h5 Ng6 hxg6 Nf6 Nh3 cxd4 Ng1 d3 Bg2 d4 Bf1 Nd5 exd5 Bg7 Rh4 Bh6 Rh1 Bf8 Kf2 Kd7 Kf3 Kd6 c4 Kc5 a4 h5 g7 b5 g8R f5 a5 b3 d6 d2 g6 h4 a6 d3 d7 Kd4 a7 b4 c5 h3 c6 b2 c7 b3 Ra2 Rh4 Rh8 Rb8 a8N h2 Ne2+ Kc4 Nd4 Ba6 Qe2 d1R Ra5 Rd2 c8Q+ Qc7 d8B Qc5 Qb7 Qa3 Qd7 Rg4 Nc7 Rg3+ Kf2 Bb7 Rh4 Bd5 Nc6 Bf7 Rd5 Rc2 Be3 Rc3 Rg1 h1R Qg4 Rh2+ Bg2 d2 Rh1 d1Q Ne6 Qd4 Nd2+ Kd3 Bb6 b1R Ned8 b2 Ba7 Rc5 Nb3 Rcb5 Rd6 Rc1 Rd5 b1Q Rd6 Rhh3 Bd5 Qda4 Bed4 Rc4 Bg7 Rf3+ Kg2 Rhg3+ Kh2 Ke2 Be6 Be8 Bg8 e6 Rd4 Bf7 Qh3 Rg4 Qg2+ Rf2 Kh3 Rg5 Qg4+ f3 Kg3 Qg1+ Kf4 Qb1 Qh3 Rg1 Qg4 Rg3 Kg5 f4+ Kh6
4QR2/b2prbR1/3Nk2K/pQPq3b/3q1r1R/Qq5N/1B2p1q1/2qB1N2 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 d4 bxa4 f5 cxd4 Bc4 Nh6 Be2 Nc6 Bf1 Ne5 f6 Nf5 gxf5 g4 Kd2 Nf7 Ke1 Ng5 hxg5 Qb6 Rh3 Qc7 Rh1 Qd8 Kd2 Kf7 b4 e5 c4 a5 b5 h5 b6 d3 Ke3 h4 b7 g3 b8Q d2 Nc3 g2 Qe1 d1B Qe2 a3 Qc2 a2 Qa4 h3 Qab5 h2 Nh3 Rh4 Ne2 Ba6 Ng3 Rf4 Bb2 Bh5 Be2 Qb6+ c5 Bd6 Rag1 a1Q Nf1 Bc7 Qb4 Bc4 Qa3 Qb4 Bd1 Bb6 Qb7 Ba7 Qb5 Re8 g6+ Kg8 g7 Kf7 g8N Re7 Bc2 Qd1 Bb3 Qd5 Bd1 Qb3+ Bc3 Kf8 f7 Kg7 f6+ Kg6 f8R Kf5 f7 Ke6 Qaa4 Qb2 Qc2 Qb3 Qd3 Qd4+ Kd2 Qd5 Nf6 Qd4 Ne8 e3+ Kc1 e4 Bb2 e2 Nd6 e1Q Qc3 Qb4 Qa3 e3 Kc2 e2 Kc1 Qe5 Kc2 Bb3+ Kd3 Qd5+ Ke3 Bc4 Rh8 Ba2 f8Q Qbc4 Qe8 Qeb4 Rg8 Qc1+ Nd2 Bb3 Rg7 Ba2 Rf1 g1Q+ Rf2 Qb1 Nf1 Qgg2 Rg1 h1Q Rh7 Rd4 Rf8 Rf4 Rg7 Bc4 Rg4 Qc2 Rh4 Qcb3+ Bc3 Qa8 Rg4 Rf7 Bc2 Qgb7 Nh2 Kd5+ Re4 Rf2 Rg7 Qhb1 Nf1 Qc1+ Nd2 Rf6 Bd1 Qc6 Nf5 Rff7 Kf4 Qg6 Bb2 Qg2 Rg3 Q4c3 Kg5 Qd4 Nd6 Rf6 Reg4 Rf4 Rh4 Ke5 Nf1 Bcf7 Kh6 Ke6 Rgg4 Qad5 Rg7
3kN1b1/1RpR1Pnq/5K2/2np1B1B/Qq6/Q1n1B2N/rp4nN/n1R2n2 b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 g5 c4 gxh4 Nh3 a5 Ng1 axb4 Rh3 b3 Rh2 Bh6 Rh1 Bf8 d4 e5 Na3 b5 Ne2 e3 Rb1 e4 Ng1 b4 Ra1 Bd6 Nb1 Be5 dxe5 Ra3 Bd3 Ra5 Bf1 Rb5 cxb5 Ba6 Qc2 Bb7 Qd1 Bc8 Ke2 h5 f4 d5 a4 b2 g4 h3 g5 h2 g6 b3 f5 h4 a5 h3 f6 Qe7 g7 Rh7 f7+ Kd8 e6 Na6 b6 Rh6 b7 Qb4 b8R Nc5 a6 Nf6 g8B Nh5 a7 Ng7 Nd2 b1N a8Q b2 Rb7 Rg6 Bh7 Nc3+ Ke1 e2 Kf2 e1N Ke3 Nc2+ Kf4 e3+ Ke5 e2 Qa3 e1N Be2 Rg3 Ndf3 Ng2 Bf5 Rg4 Rb1 Na1 Be3 Bd7 Qda4 Bb5 Bf2 Bd3 Be3 Rh4 Rc1 Bc2 Bg4 Bh7 Kf6 Bg8 Bh5 Rc4 Bd3 Rf4+ Bf5 Rc4 Ne2 Rf4 Rhf1 h1Q Neg1 h2 Nh3 Rd4 Rfe1 Rd3 Rc2 Rd4 Ree2 Qb1 Rc1 h1N Nh2 Ng3 Bc2 Nf1 e7+ Kc8 e8N Kd8 Bf5 Rg4 Ree1 Rg6+ Ke5 Ra6 Re2 Ra7 Kf6 Q1e4 Bf2 Qb1 Re7 Ra5 Be3 Q1e4 Bc8 Qh7 Bf5 Nab3 Qa2 Nd4 Qd1 Nc2 Qb3 Ra2 Qa3 Na1 Qd4 Qb5 Qda4 Qb4 Rd7+
1q4R1/N1B1bN2/2qrk1K1/qN4B1/4P1Q1/1b1Qr1pb/p1RrQpB1/2r5 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 Qd3 g5 Qd2 f4 Qd1 Nh6 h3 Nf5 gxf5 Nc6 h4 g4 Bh3 Ne5 Bg2 Nf7 Bf1 Ng5 hxg5 Qf6 Qd2 Qb6 Qd1 Qd8 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 a5 c4 h4 b4 f2 f6 a3 c5 d3 b5 a4 c6 d4 c7 d2 b6 f3 b7 d3 b8B a2 Na3 g3 Bg2 f1R Nh3 f2 Nb5 a3 e4 Rh6 Rg1 Be7 Qe2 d1B Kf4 d2 g6+ Ke6 Kg5 Bc2 g7 d1R Bd2 Bd7 c8N Bb3 Nca7 Rc1 Be5 Rfd1 Bc7 Qb8 Rb1 a1Q Rf1 Rh5+ Kg6 Rd5 f7 Rd6 Bg5 R1d2 f8Q a2 Qe8 Qc3 Qd8 Qa5 Rb2 Bc8 Rd1 Bd7 Rc2 Bc8 Ng1 h3 Nf3 h2 Ne5 h1Q Nf7 Qh8 g8Q Qhc3 Rh1 Qc6 Rh8 Bd7 Nc8 Ra6 Nca7 R6d3 Qg7 Re3 Qgg8 Qc5 Qg7 Rad6 Rg8 Bc8 Nh8 Qc6 Nf7 R6d3 Qdd4 Bd7 Qc3 Rd6 Qcd3 Qaa6 Bh6 Qa5 Kh7 Bc8 Qg5 Bd7 Qgh5 Kf6 Qh3 Bg4 Bg5+ Ke6 Qh4 Bh3 Kg6 Qd7 Qf4 Qc6 Qfg4+
3bNnK1/2Pp2p1/1kr3R1/2nnN3/2pN1b1Q/1b3nQ1/B6B/RnQB3b b - - 0 1 legal: proof: f4 e5 c4 exf4 b4 a5 g4 axb4 g5 b3 g6 hxg6 Na3 g5 Nb1 g4 d3 c5 Bh3 b5 Bg2 b4 Bf1 Qa5 d4 Qb5 cxb5 c4 Be3 Rh5 Bc1 Rc5 dxc5 Ra6 Qc2 Rh6 Qd1 Rh8 Kd2 Kd8 h4 Kc7 e4 f5 a4 b2 e5 f3 Ke3 f4+ Ke4 f2 Kf5 b3 Kg6 g3 Kf7 g2 a5 f3 h5 Ba6 h6 Rh7 c6 Bc5 e6 Bd4 e7 Bc5 Ne2 g1B Bf4+ Bd6 Qc1 Bb7 a6 Nf6 e8N+ Kb6 a7 Na6 a8B Nc5 Bh2 Bf4 Nd2 b1N Nd4 b2 Be2 f1N Bd1 f2 N2f3 Nfd2 Ne5 f1N c7 Bf2 Rg1 Ne3 Rg6 Bh1 Be4 Nd5 Bd3 Rh8 h7 Bh4 B3c2 Nf3 Bb3 Bhg5 Ba2 Bh4 Nd6 Rb8 h8Q Nh7 Ne8+ Bf6 Kg8 Nf8 Qh4 Ra8 Nd6 Bd8 Qg3 Ra6 Ne8+ Ka7 Qh4 Rc6 b6+ Ka6 b7 Kb6 Bab3 Nbc3 Ba2 b1B Qg3 Bc2 Qh4 Bb3 b8Q+ Ka6 Qb4 Nb1 Qbe1 Kb6 Qeg3
3Q1B2/1R2pk1p/5N1P/1NRp2QB/K1NBq3/1n1bp1qr/1Rr5/1r3nq1 b - - 0 1 legal: proof: f4 c5 a4 g5 e3 gxf4 b4 b5 axb5 cxb4 c4 fxe3 d4 Bh6 c5 Bf4 c6 Bd6 Qh5 Bb7 Qd1 Bc5 dxc5 Bc8 g4 d5 h4 a5 b6 f5 h5 b3 h6 a4 c7 f4 c6 b2 g5 a3 g6 f3 g7 a2 b7 Bh3 c8Q Ra3 c7 Rd3 Nd2 b1Q Nc4 Nc6 b8B Rb3 Rh2 Bf5 Ba7 Rb2 Bd4 Nb8 Ne2 Rc2 Nc3 Bd3 Nb5 Nd7 Be2 Ngf6 g8N Ng4 Nf6+ Kf7 Bcb2 Qg8 Qd8 Nc5 c8R Nb3 Rc5 Qg7 Qc1 f2+ Kd1 Rg8 Rg2 Nh2 Bh5+ Qg6 Bbc3 Nf1 Rh2 Qb2 Rb1 a1R Qd2 Qa2 Qe2 Qa6 Qg4 Qd6 Qg5 Qg3 Rh4 Ra7 Rb2 Rb7 Re4 Rb6 Re6 Rb8 Rb6 Rg7 Bg4 Qe4 Rb7 Rg6 Bf3 Nh2 Bh5 f1Q+ Be1 Qfg2 Bec3 Nf1 Qe5 Ra8 Be2 Nbd2 Ng8 Q3f2 Bh5 Qgg1 Qg3 Qfg2 Bg7 Ra1+ Rb1 Q2h2 Nf6 Rb2 Bf8 Rba2 Qh4 Qb8 Bd4 Qbh2 Be2 Rg3 Qg5 Rh3 Kc1 Qhg3 Bd1 Ra4 Kb2 Nb3 Kc3 R4a3 Kb4 R3a2 Bf3 Rah2 Rb2 Rb1 Ka4 Rc2 Bh5+
R1N3K1/2k1q2B/1bnn1b2/2N1Rrp1/pB1p4/1Q1Q2R1/2Q3Pp/qBqq4 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 e5 a4 exf4 Ba3 b5 Bb2 bxa4 Bc1 a3 h4 g5 h5 a5 Nf3 a4 Ng1 Ra5 bxa5 Bb7 Be3 Be4 Bc1 Bg6 hxg6 Bd6 Qd2 Bc5 Qd1 Bf8 Kf2 h5 Kf3 d5 e4 Kd7 c4 f5 e5 d3 g7 d2 e6+ Kc6 e7 a2 e8B+ Nd7 c5 d4 a6 h4 a7 h3 a8R h2 Bg6 Rh4 Ne2 Ngf6 g8Q Nd5 Bh7 Nc3 Ba3 Ne4 Nc1 Be7 Bd3 Qe8 Nb3 Nb8 Nc3 Bf6 Nd5 Nd6 Re1 Qe7 Re5 Rg4 Qe2 d1Q Nb6 Kb7 Rc1 a1B Rc3 Bb2 Qc4 Bc1 Bc2 Bd2 Qb5 Qa1 Bb1 Rh4 Rce3 Ba5 Qed3 Rg4 Qbc4 Kc6 Bb4 Rg3+ Ke2 f3+ Kf2 f4 Qcc3 Kc7 c6 Kd8 c7+ Ke8 Kf1 f2 Ke2 Rg4 Kf3 Rh4 Nc8 Kd7 Na7 Bb6 Qcc4 Rh3+ Kg4 Rf3 Kh5 f1Q Kh6 Qd1 Qg8 Rf1 Rg3 Qc1 Qgc4 f3 Qcc3 f2 Qb2 Nc6 Qa2 Nd8 c8Q+ Ke8 Qcc3 Kd7 Nc5+ Kc7 Qab3 Nc6 Kg6 Rh1 Qcc4 f1Q Nc8 Qfd1 Qbc2 Rf1 Q4b3 Rf5 Kh6 Qd8 Kg6 Nb5 Kf7 Qe7+ Kg8 Nd6 Be1 Qa2 Ba5 Qa1 Bb4
3b1B1B/2kQ3N/1p2pB1b/1b6/PN1QR3/1p3qr1/1prbn2K/1q1RRN2 b - - 0 1 legal: proof: c4 c5 b4 cxb4 d4 f5 e4 a5 exf5 h5 g4 hxg4 c5 Na6 c6 Nc5 Bc4 a4 Bb3 axb3 dxc5 Qb6 Bh6 Qc7 Bc1 Qd8 Kf1 d5 Kg2 g5 a4 g3 h4 e6 f4 b2 f6 b3 f5 d4 c7 Kd7 h5 g4 h6 d3 h7 d2 f7 Qf6 Nc3 Bh6 f8B Ne7 Nge2 Rg8 h8B Ng6 Na2 Nf4+ Kg1 g2 Ng3 Ne2+ Kh2 b6 Rb1 Ba6 c8R Bb5 Re1 Ra7 Rd8+ Kc7 c6 Ra5 Nb4 g1B+ Kg2 Bd4 Nf1 Qg6 f6 g3 f7 Bf6 Rd4 Bd8 Re4 Rg7 Kh3 g2 Kh2 Qf6 Ra1 Qf3 Rb1 Rg3 Ra1 Kb8 c7+ Kc8 Qc2 d1Q Qd3 Kb7 Bg5 Qb1 Bgf6 Ra8 Qd4 Rc8 Ne3 Qg4 Nf1 g1B+ Kh1 Bge3 Kh2 Bd2 Rd1 Ra8 Re1 Qf3 c8Q+ Ka7 Qc6 Rc8 Qcd7+ Kb8 Rd1 Rc2 Re1 Qa2 Rad1 Qa1 Bc5 Qb1 f8N Bde3 Nh7 Bd2 Qe8 Kc8 Bf8 Kc7 Qed7+
B6K/r2qR3/P2NB2N/1p3Rnp/1qNR3r/Q1b4k/q2pp1q1/1B2Qb2 b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 f6 exf6 axb4 g4 Nh6 h4 Ng8 h5 Nc6 f5 Ne5 Bf4 gxf4 g5 Ng6 hxg6 Ra4 Bg2 Ra7 Bf1 Ra8 Kf2 b5 Kf3 e5 Ke4 h5 a4 d6 c4 Kd7 f7 f3 a5 b3 a6 b2 g7 d3 c5 d2 c6+ Ke7 c7 f2 g6 Kf6 Nh3 Be6 c8N Qa5 Ng5 Qa2 Bd3 f1Q Rh4 Ra7 Qe1 d1Q Na3 b1Q Nc4 Nh6 g8B Bg7 f8Q+ Nf7 Bh7 Qbb2 Bb1 Rg8 Rf4 Bh8 g7 Qb4 Bg6 Bd7 Rh4 Qg4+ Kd5 Qgh3 Rd4 e4 Bh7 e3 Ke4 Qaa3 Ra2 Qg1 Re2 d5+ Kf4 Qab3 Qc5 Qc2 N8d6 Qa2 Be4 Re8 g8B Qgg2 Bf3 Qba4 Qa3 Qb4 Rd1 d4 Ba8 d3 Bg6 Ne5 Ngf7 Nf3 Nh6 Ng5 Be6 Bg7 Rf2 e2 Rf3 Ke7 Re3 Bc3 Re4 Kf6 Rd4 Ke7 Ke5 d2 Rc1 Qb7 Bh7 Qhg2 Bg6 Bc6 Rc2 Qd7 f6+ Kf8 f7 Kg7 Bd3 Be4 f8R Kg6 Rf5 Rf8 Rf3 Rf4 Rf1 Rh4 Rf5 Bf3 Rc1 Bg4 Bc2 Bh3 Bb1 Qf2 Rc2 Bf1 Rc1 Ba1 Rc3 Qg2 Rcf3 Bc3 Rf7+ Ne4 Re7 Kg5 Rf6 Rh3 Rf2 Kh4 Kf5 Kg3 Kg6 Ng5 Kg7 Rh4 Rf5+ Kh3 Kh8
4qb1R/3pNnR1/1q2B3/pNRpB3/1b2QBKp/2n5/P2nQkN1/3b1n2 b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 f5 d4 f3 c5 f4 c6 bxc6 d5 cxd5 h3 g5 Qc2 h5 Qd1 a5 Be3 Rh6 Bc1 Rf6 h4 Rf5 gxf5 g4 Bd2 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Bg7 Qd3 Bh6 Qd1 Bf8 Kf2 Ke7 e4 Kd6 b4 Ke5 g6 c5 f6 c4 f7 h4 b5 c3 g7 c2 b6 Bb4 f8R Na6 b7 Nh6 g8N Nf7 b8B+ Nc7 Qe2 Kd4 e5 Nb5 e6 Ba6 e7 Qe8 Bh3 Nc3 Na3 Bc4 Bd2 Bb3 Rc1 Ba4 Be3+ Ke4 Be5 g3+ Ke1 g2 Kf2 Bb3 Be6 Ba4 Nh3 g1B+ Kf1 f2 Kg2 f1N Nb5 Nd2 Rh2 Bb3 Rh1 Bf2 Rhg1 f3+ Kh2 Be1 Nf4 f2 Kh3 f1N Rg7 Ba3 Kg4 Bd6 Rd1 c1Q Ng2 Qb2 Rc1 Bd1 Rc2 Qb4 Rc1 Qd4 Rc2 Qb6 Rc1 Qc8 e8Q Bb4 Ne7 Bg3 Bb8 Bgd6 Rh8 Bdc5 Be5 Qa8 Ng6 Bf8 Qe7 Na4 Rc5 Qe8 Qg5 Nc3 Ne7 Bc2 Qh5 Ba4 Qf3+ Kd3 Qff5+ Ke2 B3f4 Kf2 Qd3 Bb3 Qhh7 Bc2 Qhe4 Bd1+ Qde2+
R3Q1K1/Rpq1b2Q/2b1rbN1/p3R3/kBQr4/N1p1r2N/p1BP2qr/8 b - - 0 1 illegal: No proof kernel
R3r3/Qr2pk1b/1n1p4/bNrp4/2p1Q3/b3P2B/r1RBKb1R/1BQ3N1 b - - 0 1 legal: proof: g4 f5 a4 g5 b4 c6 d4 Qa5 d5 fxg4 h4 g3 c4 Qc5 b5 g4 a5 Na6 Nh3 Qe3 Ng1 Qg5 hxg5 Nc5 Qd4 Na4 Qd1 Nb6 c5 cxd5 c6 bxc6 axb6 Bb7 Rh2 Ba6 Rh1 Bc8 f4 h5 g6 a5 g7 d6 f5 a4 f6 a3 b7 g2 b8R c5 e3 g3 b6 h4 b7 a2 Ke2 h3 Qd4 h2 Qb4 Kf7 Kd3 Bf5+ Kd2 Bh7 Nh3 g1R Qg4 g2 Rc8 c4 b8Q Ra5 Nc3 Rc5 Rb1 a1B Ke2 Bb2 Qa7 Ba3 Nb5 Nh6 Qf4 Ng4 Bd2 Ne5 Ra8 Nd7 Qe4 Nb6 Rb2 Rg8 Rc2 Rh8 Kf2 Rg8 Bd3 Ra1 Ng1 Ra2 Bf1 Rh8 Ke2 Rg8 Nf3 g1B Bh3 Bf2 Ng1 Rh8 Bc8 Ke8 g8B Bg7 Bge6 Rg8 Bh3 Kf7 Bcf5 Re8 Bg6+ Kf8 f7 Bc3 Bgf5 Ba5 Bg6 Kg7 Bgf5 Kf6 f8Q+ Kg5 Qg8+ Kf6 Qh8+ Kf7 Qa1 Rb8 Nf3 Rg8 Qc1 Re8 Rf1 h1R Ng1 Bg3 Rf4 Bf2 Rh4 Rh2 Bf1 Rg2 Rh2 Rgg8 B1h3 Rb8 Qh4 Rb7 Bd3 Re8 Qe4 Rcc8 Rc3 Rcc7 Bb1 Rc5 Rc2
1K1R1nNk/2QB4/p5rp/Nb1B1b2/3qpQ2/rpB2P2/R1R2p1n/1q1Q4 b - - 0 1 illegal: No proof kernel
2Q1b1B1/rRQ1P3/Q5b1/1pK3pp/1N4R1/q1p1nN1q/B1N1p1k1/2rR2n1 b - - 0 1 illegal: No proof kernel
1N1K1nB1/pQ4q1/2Q1Bp2/2rN2R1/1BN2p1k/1R1r1p2/1P1q2pn/q3bR2 b - - 0 1 illegal: No proof kernel
bb2k3/2p1Q3/R1BpP3/1Q3B2/2p1rR2/Q2r3p/RpNnN3/2nbKN1b b - - 0 1 illegal: No possible last move
b2n1kRQ/4r3/5qRq/b6n/Rn1QQ3/r2PB3/1qB1brnK/1nNN3B b - - 0 1 illegal: No possible last move, all moves rejected
6qn/5BRN/R5Q1/1kn1q2b/r1NqrP1K/Bnbr4/2Qn1n2/B2Rb2N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 d5 g4 Kd7 b6 Kc6 c5 a4 b7 a3 g5 a2 g6 d3 g7 e3+ Kg2 e4 Qd2 e2 Qc3 e1N+ Kh2 h3 Kg3 d2 Bc4 d1R Na3 h4+ Kf2 e3+ Kf1 d4 Bd2 e2+ Kf2 d3 Nb1 h2 Nh3 Nd7 b8B Nf3 Be6 Kb5 c6 Nc5 c7 Nh6 g8Q Bg7 Qc2 Ra4 Bc3 d2 Bf7 Bg4 c8R Bh5 Rc7 e1B+ Kg2 Bf6 Qgg6 Qg8 Nf2 h3+ Kg3 Bd4 Bb2 Bc3 Ba3 Rh7 Rg1 h1Q Rd7 h2 Be5 Rh8 Ra7 Rh7 Ra6 Rg7 Rg2 Qf1 Kh3 Qe2 Nh1 Qe4 Bd4 Qe5 Rg5 Rc1 Rg2 d1Q Nd2 Rb1 Rg1 Rb3 Nc4 Nd2 Rg3 Rh7 Kh4 Rh8 Rb1 a1N Rc1 Bb2 Rb1 Rd3 Bc3 Nab3 Ra1 Qf3 Rd1 Qfe4 Bd4 Bc1 Ba1 Q4d4 Nf2 h1N Rg4 Ng3 Nh1 Nge4+ Rg3 Nf2 Rg1 Ra5 Rg4 Bb2 Rg3 Ka4 b5 Bc3 b6 Kb5 b7 Ra4 b8N Rh7 Nd7 Rg7 Bd5 Nf7 Nf8 Nh8 Nh7 Re7 Rg1 Qe2 Bf7 Re4 Qe6 Qee3 Rg7 Qe5 Qg4 Q3d4 Qg6
5K2/Nb2N2B/1r4Nn/3qP3/qbB5/R1QRnb1k/2rBqQr1/1bbnQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 c4 d5+ Kf3 Kf5 b4 h5 e3 a4 g3 h3 c5 a3 c6 h4 b6 d3 b7 a2 b5 h2 c7 h3 b6 d4 Bd2 Nc6 b8Q Ra6 b7 Ne5+ Kf2 f3 e4+ Kg4 Qa7 f5 b8N f4 Nd7 Nh6 Bg2 Bb7 c8Q Rg8 Qc7 Rb6 Qc3 Nc4 e5 Ne3 Bf1 Bb4 Nb8 Qd5 Ne2 Rc8 Rg1 h1R Na3 h2 Qe1 Rcc6 Rg2 Kh3 g4 Rg1 g5 h1B g6 Rc4 Rd1 a1B g7 Bb2 g8B Bc1 Bh7 Rc7 Nc6 Rc8 Qb3 Rc7 Ne7 Rc2 Bc3 d2 Nb5 d3 Qaa2 Bb2 Na7 B2a3 Ra1 d1Q Bd2 Bc1 Qab2 Rc7 Q3c3 Qa4 Ra3 Rc5 Ng6 Rc4 Nd4 Rc7 Qcb3 Rc2 Rg4+ Bg2 Be2 Bh1 Nf5 Rg3 Nfe7 Bg2 Bc3 d2 Bc4 d1N+ Kg1 Nef5 Bd2 Bh1+ Kf1 f2 Ke2 Nfe3 Q3c3 Rg2 Rg3+ Kh2 Qd4 f3+ Kd3 f1Q+ Qe2 f2 Qc3 Qf3 Qf4 Qe1 Kd4 f1B Qf2 Qee2 Qe1 Qfc6 Qff2 Qe6 Rf3 Qg8 Rf8 Kh3 Rd8 Bc8 Ke4 Bb7+ Kf4 Qe6 Rd4 Qd5 Rd3 Rh2 Kg5 Bf3 Nac6 B1g2 Kf6 Be4 Kg7 Bgf3 Na7 Rg2 Kf8 Ra2 Rd4 Bb1 Rd3 Rb2 Ba6 Rc2 Bc4
4kq1B/1b2NP1q/Q3nRbB/1K5b/n2N3q/2b1nQ2/2rR2QN/r2b1B1r b - - 0 1 illegal: No possible last move
1rNR1rB1/BQK3n1/4r2b/2bN3k/6bb/Q1bPb1Q1/3qnB2/q1R1b1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 h4 a5 e4 c5 b4 f5 b6 Kf7 b5 Kg6 e5 g3+ Kf3 g2 e6 c3 b7 a4 e7 c4 e8R a3 b6 c2 Nc3 g4+ Kf2 f3 Ke3 f4+ Ke4 g3 Ke5 f2 Nh3 g1B Na4 f3 Nb2 c3 Re6+ Nf6 Ra2 g2 Ra1 a2 Qe2 Bb4 Qe4+ Kh5 Na4 Rf8 Rd6 Bg4 Bc4 f1R Bg8 Bgc5 Rg1 f2 d3 Ne8 Qf4 Ng7 Qg3 Re1+ Be3 f1Q Rc1 a1B Rd5 Qc8 Rd8 Nc6+ Kd5 Be7 b8Q Nd4 b7 Ne2 Bf2 Bg5 Qbc7 Rb8 Kc6 Qe6+ Qcd6 Qe3 Nb6 Qd2 Kc7 Be7 Nc8 Bf6 Rd1 c1B Qc6 Bca3 Rc1 c2 Qcd6 Bac3 Nf4+ Kh6 Nd5 Kh5 Ba7 Bc5 Qa6 Bab4 Qa3 Bg5 Ra1 c1B Rb1 Kh6 h5 Bh4 Ra1 Kg5 h6 Kh5 h7 Be3 h8B Bh6 Rh1 g1B Rb1 Bge3 Rg1 Bbc5 Ra1 B1b2 Rc1 B3b4 Qb3 B2c3 Qa3 Ra8 b8Q Qf6 Qb7 Rb8 Qb3 Qa6 Qb2 Qa1 Qb3 Ref1 Qa3 R1f6 Qf3 Re6 Qg3 Nf5 Bf6 Ng7 Bd4 Bf2 Rg2 Be1 Bg1 Bce3 Bf2 Bbc5 Rg1
BQ1q4/2b1N1bk/2Q3rn/1Q1qNb2/1qbNP2K/bb2r2B/1B3R2/1R1bn3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 Kf7 e4 Kg7 c4 a5 b6 d5 c5 a4 c6 f3 Kg3 f4+ Kh2 d3 b7 d2 c7 d4 h5 f2 h6+ Kh7 b5 d3 b6 a3 Qc2 d1B Bb2 d2 Bc1 g3+ Kg2 g4 Nf3 a2 Na3 Nc6 b8Q Nd4 b7 Ra6 Nh4 Nf3 Nc4 Bf5 c8B Ba3 Qb2 Bb3 Qd4 d1B Qbe5 Rg6 Rb1 a1B Rh2 Ne1+ Kh1 f3 Bg2 f1B b8Q f2 Qdd6 Bd4 Qeb5 Bg7 Ne5 Bfc4 Nhf3 f1Q+ Ng1 Qf4 Qdc6 Qfd2 Bb2 Qb4 Bh3 Qd5 Re2 g2+ Kh2 Qd8 Ngf3 g1B+ Kg3 Bb6 Rh2 Bc7 Nd4 Qd5 Kh4 g3 Rd2 g2 Bb7 g1Q Rf2 Qh1 Ba8 Qh2 Nd7 Qhd6 Ne5 Qd8+ Qf6 Ne7 Bg2 Kg8 Qfc6 Rg3 Bf1 Re3 Bh3 Rh7 Qd6 Kh8 Nec6 Ng8+ Ne7 Be5 Qf6+ Rg7 Qfc6 Rg6 h7 Kg7 h8N Nh6 Nf7 Kh7 Bg2 Bh8 Ne5 Bg7 Bh3
n3B1QR/5r2/n1N2br1/1K3Q2/1RnNb1Rr/2q3n1/1bnr1P2/1kBrQN2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 a5 b4 d5 c5 e5 b6 h5 c6 d3 Kc3 a4 b5 e3 c7 e4 b7 a3 b6 d4+ Kc4 a2 g5 Kf5 g6 e2 g7 e1R Bd2 e3 Nc3 h3 Nf3 h2 Ne2 Ke4 Nh4 Ra6 Bb4 d2 Bh3 d3 Kb5 Qf6 Bd7 Ne7 g8Q Rh7 Bg4 Bf5 c8Q Bg7 Rc1 a1B Qgb3 Nd5 Qc7 Qc3 Rg1 h1R Bc5 Bf6 Ng2 h4 Bd6 h3 Qg7 h2 Bh5 Bb2 Nef4 e2 Qh8 Rf7 Qdc2 d1R Qg7 Rd2 Qg8 Red1 Rb1 e1N Ne3 Bg6 Qc1 Nc2 Rg4 Kd4 Qa3 Be4 Qa5 Nc7+ Ka4 Be5 Nf1 Na8 Kb5 Bf6 Bc7 Ra7 Bd8 Na6 b8N Rac7 b7 Rc6 Ka4 Kc4 Qf5 Rd6 Be7 Re6 Bb4 Rb6 Ka5 Kb3 Ne6 Ka2 Nc6 Rd7 b8R Re1 Qc8 Ba3 Rg7 Bg5 Ne5 Ra7 Be2 Rf7 Nd4 Rd6 Rh7 Rg6 Rh4 Bf6 Ne3 Reg1 Rf4 R1g4 Rb3 Rh4 Rg4 Rf1 Qh8 h1N Rb1 Re1 Nf1 Ng3 Qd1 Bc1 Rb3 Ba3 Ka4 Bc1 Ba3 Ka1 Bb2+ Ka2 R3b4 Kb1 Ne3 Reh1 Qg7 Rf1 Rh8 Re1 Bf1 Rde2 Qg8 d2 Ka5 Bh1 Bg2 Rf1 Bb7 Be4 Bc6 Rfh1 Qg1 d1N Kb5 Rd2 Qf1 Rg1 Be8 Rgh1 Ba3+ Nb2 Nec6 Rg1 Qe2 Re1 Nf1 Red1 Nb3 Nc4 Qe3 Bb2 Qe1 Ba1 Bc1 Bb2 Nbd4
1NB2r2/BRbKb3/1b6/4qk2/2n1rQ1b/4PRn1/1BN2N1Q/1Qqbn1br b - - 0 1 illegal: No possible last move, all moves rejected
4B1nN/1rb3rq/R2n3k/5n1q/3qN1bB/B1Pn2R1/KQbn2n1/1Q1NQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 e4 f5 b4 Kf7 g4 Kg7 c3 h5 Kc2 a5 Kb2 h3 e5 f3 e6 d3 e7 d4 e8Q h2 g5 f2 g6 f4 b6 f3 b5 h4 b7 h3 b6 d2 Kb3 d3 Ra4 Qd4 Bb2 Bd6 Bg2 f1N Qc2 d1N Qce2 d2 Bc1 f2 Q2e3 Bg4 Rc4 a4+ Ka2 a3 Qe2 Na6 b8Q Nde3 b7 d1B Rb4 Nc4 Qe1 Ra7 Q8e2 Bc7 Rb2 Ng3 Bc6 f1N Nd2 Kh6 g7 Bc2 Ne4+ Nfd2 Be8 Nd6 Rb6 Nc5 Ra6 Rh7 Qb5 Nd3 Qb1 Nf5 Bb2 Nge7 g8N+ Kg7 Nh6 Ng8 Ka1 a2 Nf7 Kg6 Nh8+ Kh6 Ba3 Rd7 Ne2 Rg7 Rg1 h1Q Nf2 h2 Rg3 Qhd5 Nd1 h1Q Qb2 Qh5 Qb1 Qdh1 Qb2 Nf4 Qb1 Ng2 Kb2 a1N Ka2 Q1h4 Qc1 Kh7 Rf3 Nab3 Qb1 Qg6 Ng3 Qhh5 Ne4 Nc5 Rg3 Nd3 Qd8 Ba5 Qdb6 Kh6 Q6b2 Qh7 b8B Rab7 Bc7 Bb6 Bd8 Bc7 Bh4
bRK3B1/q1BR1R2/1Q1Q4/b1nnNN2/Bq1r1Pk1/1b1bb3/1Q5r/b2n3r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 h5 b4 a5 c4 d5 g5 Kf5 c5 e5 g6 a4 c6 h3 c7 a3 g7 h2 b6 h4 b7 h3 b5 d3 Ke3 d2 b6 d4+ Ke2 a2 Nc3 e3 Kd3 e4+ Kc4 d3 Kb5 e2 Bg2 e1B Nce2 e3 Nf3 Kg4 Ng5 Na6 Kc6 Qe7 b8Q Bf5 Kb7 Nf6 Rg1 h1B g8B h2 Ng3+ e2 Bc6 Bg7 Qa7 Rd8 Bb2 Qd7 Qc1 d1B Nf7 d2 Be5 Bb3 Qb2 Bg6 Rc1 a1B Rg2 d1N Ba4 Qd4 c8R Ba5 Bb8 Rd5 R1c7 e1Q Rd2 Qdf2 Rd4 Bd3 Nf5 Qb4 Re7 Bhe4 Bc7 h1R Ra8 Bg2 Kc8 R8h2 b7 Rd6 Rd5 Qfb6 Rd4 Nc5 Rd5 Qa6 Qb6 Qa7 Rd4 Re6 Rd5 Re4 Rdd7 Rc4 Qd6 Bc6 b8Q Nd5 Qb5 Bd4 Qb6 Be3 Rb8 Ba8 Ne5+ Kh3 Ng6 Kg4 Rf7 Rd4 Ne5+
3rq3/4qbk1/q3Qb2/2qN1B2/3bqNBn/n1B3QQ/K2P2N1/R1b1Rrb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 h5 g4 a5 b4 c5 b6 f5 b7 Kf7 g5 a4 b5 f3 e5 f2+ Ke2 c3 g6+ Kg7 e6 f4 b6 h3 e7 a3 e8Q c4 Nf3 c2 Nd4 a2 Ba3 c1B Nc6 h2 Qe1 f3+ Kd1 h4 Kc2 c3 Kb3 h3 Rg1 h1Q Be7 c2 Bc5 h2 Rg5 Be6+ Rd5 Nh6 Qe7+ Bf7 Qh4 Qe8 Bd3 f1Q Qe6 f2 Na3 Bb2 Bb4 c1B Bf5 Bf6 Nd8 Qfb5 Re5 f1Q Nc2 Nd7 b8Q Qe4 b7 h1Q Ne1 Bc5 Qh3 Rf8 Ng2 Bg1 Qc7 Qfe2 b8N Qa6 Bc3 Nb6 Nd7 Nc4 Nb6 Na3 Nd5 Qd4 Re4 Qc5 Qcg3 Qee3 Bg4 Nf5 Re5 Qg5 Re1 Nh4 Bf5 Bfd4 Bg4 Qge7 Bf5 Kh6 g7+ Bf6 g8B Rc8 Bg4 Kg7 Bh7 Ra8 Rb1 a1B Bhf5 Bab2 Ra1 Rb8+ Bb4 Bbd4 Ka2 Rc8 Bc3 Rb8 Ngf4 Qe4 Ng2 Rc8 Nc6 Rd8 Ne5 Rh8 Nd3 Rh5 Bg6 Rf5 Bh7 Rf2 N3f4 Rf1 Bhf5
2knNq1Q/3R1q2/KR1b3q/7b/Rr3qQb/4n1BN/2P1r1NB/2qnnB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Kc4 f5 g4 d5+ Kd3 Kd7 b4 f3 e4 h3 g5 f2 g6 h2 g7 h4 e5 f4 b6 a4 b5 h3 b7 a3 b6 a2 Nc3 f3 Nb1 Rh4 Bb2 Nf6 g8Q Ng4 Qe2 Bd6 Qh8 Qf8 Qh6 Ne3 Na3 Nc6 b8R Ng2 b7 Ne1+ Kd2 d3 Kc3 d4+ Kc4 d2 Kb5 d1N Nc4 d3 Na3 d2 Qh5 Nd8 Qc4 Ne3 Rc1 d1N Qe4 a1B e6+ Kc7 e7 Bg4 Qhe5 Bh5 Nc4 Ra4 Qh8 Rb4+ Ka6 Qf7 Be2 f1Q Be5 f2 Bg3 Bf6 e8N+ Kd7 Qg6 Re4 Ra1 Bh4 Ra4 Re5 Qg4+ Re6 Nf3 Qf4 Rg1 h1Q Ng5 h2 Nh3 Qd5 Rg2 h1Q Bh2 Qfg1 Bf1 Qdf5 Rg3 Qf8 Rf3 Q4f7 Rf5 Qg3 Rd5 Qgf4 Rd3 Q4h6 Bg3 Qe4 Rd4 Qef4 Rd5 Nf5 Ne3 Re7 Ng2 Re2 Ra8 Qc1 b8B Kc8 Ra7 Qcf4 Rd7 Nfe3 Rb5 Rd2 Bc4 f1Q Rb6 Re2 Bb5 Q1f3 Bd3 Q3d5 Bc4 Qd2 Bh2 Qc1 Bb5 Rf2 Bf1 Re2 Qg3 Q4f5 Qg6 Bc5 Bbe5 Bd6 Beg3 Qff4 Qg4
3q4/2RR3R/1k2nr1q/2r1bq2/1NB1bB2/QQ3P2/4KNbq/qb1BnnQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 g4 a5 b4 e5 c4 h5 c5 d5 b6 Kd7 f3 Kc6 g5 d3 b7 e3 g6 e4 g7 h3 Qb3 d4 Na3 h4 Qb1 e2 Qb2 a4 Bg2 d2+ Kf2 d1B Qb3 e1N Bh6 h2 Bf4 h3 Rc1 e3+ Kf1 e2+ Kf2 d3 Qb1 d2 Qa2 Nd7 b8Q Rh5 Ra1 Ra6 Bf1 Ne7 g8Q Bb7 Qgb3 Bc2 Qc3 d1Q Qcb2 Qd5 Qa7 Nf5 Qbb3 Bb1 Nc2 Bg7 Qaa3 Be5 b5+ Kc7 c6 Ng3 Qae3 Nc5 Nb4 Kb6 c7 Bc6 Qec1 Ne6 c8B Qd2 Qcd1 Bce4 Bd7 Qd6 Be8 Qf8 Ra2 Qh6 Rc2 Rf5 Rd2 Rf6 Rd7 Ra5 Qab2 a3 Ke3 a2 Q2a3 Kc5 b6 a1Q b7 Kb6 Rc7 Rc5 Ba4 Nd3 Qdc1 e1Q+ Be2 Qd1 Bb5 Qd5 Bc4 Ne1 Rd7 Qc2 Bd1 Qd6 Rc7 Qd8 Rd7 Qd3+ Kf2 Nf1 b8R+ Bb7 Rc8 Qf5 Rcc7 B7e4 Ne2 Qc8 Nc3 Qd8 Rg1 h1B Ke2 h2 Rgg7 Bg2 Rh7 h1Q Qe3 Ba8 Qg1 Q1h2 Ne4 Bd5 Nf2 Ba8 Qh1 Bae4 Qg1
5brQ/2nR4/rQ1q2bN/q2NQ2q/q2B3k/1R1b1Pn1/2qb3K/n3B1NB b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Kf6 g4 h5 c5 a5 c6 d5 b6 e5 c7 a4 b7 e3 b5 Kg5 b6 e4 Nd2 a3 Bd3 a2 Kf1 h3 Bb5 d3 Bd7 e2+ Ke1 h4 Rb1 a1N Bb5 d4 Bb2 h2 Ba4 h3 Bd7 Kh4 g5 Ra6 g6 Nf6 g7 Nh5 g8Q Ng3 Bc6 Qd6 Nf1 Bf5 c8N Bg6 Qd5 Rg8 Ne3 Bh5 Q1b3 Bg6 Kd2 e1B+ Kd1 d2 Qe5 Qd7 Nd5 e3 Nd6 Qc7 Nf7 Qd6 Nh6 Bd3 Ne2 Bg6 Rf1 h1B Ng1 h2 Bc3 Bhe4 Bb4 Nh1 Ke2 Bd3+ Kf3 d1Q+ Kg2 e2 Qc3 Qc2 Rb3 Bd2 Rd1 e1Q Bc5 Nd7 b8B Nf6 b7 Ne8 Qa5 Nc7 Qb6 Ng3 Bb4 Bb5 Ba7 d3 Qh8 Qee5 b8Q Qec3 Qe8 Qcc5 Qee5 Bc4 Qb8 Qa5 Bd4 Bb5 Qb6 Bc4 Bd7 Bb5 f3 Bc4 Bh3 h1Q+ Kf2 Bb5 Bg2 Qh3 Bh1 Qf5 Kg2 Qh5 Rc3 Bc1+ Qe2 d2 Ne3 Qd8 Bdc5 Qb3 Kh2 Qba4 Rb3 Qd3 Bc3 Qc2 B5b4 Bd7 Qeb5 Bdf5 Qbe5 Be4 Rf1 d1Q+ Rf2 Bd5 Rd2 Bc4 Bc5 Be2 Rd7 Qd6 Be1 Bd2 Nd5 Bed3 Bd4
1RB1r3/nQ1b2q1/3QR3/B1qN4/1rrP1n2/bQ1q2B1/1r3r2/N2qkNKb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 e4 Kd4 g5 h5 e5 f5 g6 a5 b6 c5 b7 h3 g7 f3 e6 f4 d3 h4 e7 h2 e8N h3 b5 a4 b6 c3 Nf6 c4 Ne4 c2 Qe2 a3 Nbc3 a2 Nf6 Ra4 Bg2 Ba3 Kf1 f2 Qh5 Rb4 Ncd5 c3 Bd2 c1Q+ Qd1 c2 Ne3 Bd7 Nfg4 Ne7 g8Q Nd5 Qe1 Nc6 b8B Na7 Rb1 a1Q b7 Qd1 Qh7 c1R Nf6 Qc8 Bd6 Rb2 b8Q Qc5 Qb3 Rc4 Ba5 Rc8 Be4 Re8 Bf5 Rb4 Ne4 Rc4 Nd2 Rb4 Qg6 Rc4 Qb7 Rcb4 Ngf3+ Kc3 Rg1 h1R Nd4 h2 Kg2 f1R Ndc2 Rf3 Qeg3 Rf1 Bg4 Rf3 Ndf1 Rf2+ Kh3 f3 d4 Qd3 Re1 Qad1 Qg8 Qg6 Na1 Qg7 Bdc7 Qd3 Qd6 Nf4+ Kg3 Qd1 Nd5+ Kd3 Rg2 Rg1 Bb8 h1B Kh2 Rc4 Re7 Rcb4 Be6 Ke2 Qf7 Ke1 Bg4+ Rfe2 Re6 f2 Rg3 Qd3 Rh3 Rg3 Rh8 Qd1 Rf8 Rc3 Bh3 Rcc4 Bbc7 Nd3 Qf3 Nf4 Qb3 Re7 Rb8 Rf7 Nd2 Re4 Bf5 f1Q Bg4 Qfe2+ Kg1 Qd3 Nf1 Rf8 Bd8 Re8 Bh4+ Rf2 Bg3 Re2 Rf6 Rb2 Be6 Bc6 Bc8 Bd7 Re6+
1K6/3RR3/B3r1N1/4N1r1/QQnPB1bb/3bnnq1/rq2NB1b/1k1b2Qn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 d4 h5 e4 f5 g5 a5 g6 c3 b6 h3 b3 f3 b7 c4 g7 h4 Nd2 c2 Ne2 a4 Nc3 f2 Nb5 c3 Qf3 f4 Bc4 f1N Bd3 h2 Rg1 h1B Rg6 h3 Rg5 a3 Qd1 a2 Nb1 h2 Bb2 c1B Na7 c2 Ba6 f3 Nc3 f2 Ne2 Nf6 g8Q Ne3 Bc3+ Ka3 b4 f1B b5 Ne8 b6 Rh5 Nc6 Nd6 Ne7 Bg4 Ng6 Be7 Be1 Kb2 Bf2 Bhf3 Qc4 h1N Qa4 Qc7 Qe1 B1g2 Qg1 Bf1 Rf5 Rh6 Rf7 Bh4 Re7 Bd2 Re1 c1Q Rf7 a1R Rd7 Nd1 Kd5 Nc6 b8Q Ne5 b7 Bf4 Qf8 Rb1 b8N Bh2 Nc6 Ndc4 Qd6 Qc3 Qdb4+ Qb3 Kc5 Nde3 Kb5 Rh5 Kc5 Rg5 Kb5 Nf7+ e5 Re8 Kc5 Ra1 Kb5 Ra2 Kc5 Nf5 e6 Qg3 e7 Nfe3+ Nce5 Kc2 Nef4 B3e2 Kc6 Bd1 Kc7 Bd3 Ne2 Kb1 Kb7 Qb2 Ka7 Rb8 e8B Rb6 Ka8 Re6 Kb8 Nfd6 Bf7 Nd2 Bg8 Nf3 Bf7 Rf6 Bd5 Re6 Be4 Ndc4 Nef4 Bh5 Beb7 Nf1 Ng4 Rf6 Ree7 Nfe3 Be4 Re6 N4e5 Bg4 Ne2
1qN1r1b1/1rk1bbQ1/q4N2/1r2B3/P1B1n1rR/1B2Q1r1/1R5Q/nKRnb3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 h5 Kc2 b5 a4 c5 e4 f5 g4 h3 e5 h4 d6 h2 g5 h3 g6 c4 g7 f3 d5 f2 Qh5 b3+ Kb2 c3+ Ka3 f4 Bd3 f1N Be2 b2 Ka2 b4 Bd2 f3 Qh7 f2 Qh4 b3+ Ka3 c2 Nf3 c1B Ng1 Nf6 g8B Na6 Qd4 Ne3 Bc3 f1Q Nf3 Bd2 Nh4 Nc5 Bc4 Be7 Nf5 Be1 Nd2 b1R Ne4 b2 Ka2 Rh4 Bb3 Bb7 e6+ Kc8 d7+ Kc7 Nfd6 Qb8 d8R Qa6 Bc4 Nd1 Nc8 Nb3 Rd6 Rg4 Rb6 Bc6 Bf7 Be8 d6+ Kd8 d7 Kc7 Bg8 Bf7 Qe3 Rg3 Qg5 Rg4 Qg7 Rg3 Rg1 h1B Be5+ Kd8 Rf1 h2 Rf4 Bf3 Rb5 h1R Rh4 Rhg1 Rb6 Rg4 Rb4 R1g3 Rb7 Nh7 Nf6 Ng5 Rb5 Ne4 Rb6 Bd6 e7+ Kc7 e8Q Be2 Be6 Bb5 Bc4 Bc6 Qe7 Bcd5 Qe6 Rc1 Rb1 Na1 Bb3 Rc4 Rc1 Rc5 Kb1 Bc4 Rb4 Rb5 d8Q+ Kb7 Ka2 Be7 Qd2 b1R Qed6 Bcd5 Qe3 Bde6 Qdd2 Bd5 Qh2 Bde6 Bc3 Kc7 Bc4 Rb7 Rb2 Bd5 Rf2 R1b6 Rb2 Rb5 Kb1 Bde6 Bh7 Bg8 Bf5 Bef7 Bfe6 Qba7 Bb3 Rab8 Bec4 Qa8 Nd6 Re8 Be5 Qb8 Nc8+
3b1k2/1NbQn3/B3R2Q/2q1P1K1/2qB4/1nb1rb1B/1bnr1NRR/q2Nq3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 e4 g3 e5 a4 h5 g2 b6 f3 b5 d3 Ke3 d2 b7 a3 b6 g4 Kf4 a2 h6 f2 h7 d4 c5 g3 c6 d3 c7 Qd4+ Kg5 f4 Qc2 d1N Qc6+ Nd7 b8R d2 b7 f3 Bb5 f1Q Rh3 f2 Qa6 Ne7 Rh2 Qe1 Bc6 f1Q Qe2 Qc5 Bb2 Ne3 Rh4 d1Q Nc3 Nc2 Rf4 Ra3 Qg4 Qfc4 Nh3 g1B Nf2 g2 Rf6 Qdd4 Rc1 a1B Ncd1 Re3 Bb5 Bg7 Rd6 Kf8 Re6 Rg8 Bc3 Bb2 Ba6 Rh8 Ra1 Rg8 h8Q Bf6+ Kh5 Bg5 Ra2 Bf6 Ra8 Bh4 b8N Bb7 c8B Bf3 Nc6 Bg5 Ne4 Bf2 Qh7 g1B Na5 Bf6 Kh6 Rg7 Qgf5 Rg2 Nb7 Bg3 Qf4 Rd2 Nef2 Bh4 Ba5 Qdc3 Bb6 Q3a3 Qhf5 Bc3 Rb2 Qa1 Q5g4 Bg5+ Kh5 Bh4 Qh6+ Kf7 Rb1 Ng6 Ra7 Qc7 Nb2 Ree2 Rd6 Qf1 Na4 Rd4 Rc1 Ne1 Nd3 Be3 Rd1 Bc1 Nab2 Nc5 Bb5 Nb3 Rd2 Re3 Rh2 Qf2 Ra6 Nc2 Nd1 Qe1 Rd8 Rd6 Rg8 B1b2 N3f2 Rd2 Bd4 Q7c5 Rd6 Be7 Ba6 Bhg5 Rc6 Bd6 Bf5 Bd8 Bc8 Be4 Qh3 Ne7 Rgg2 B6c7 Kg5 Ke8 Q3e6 Bf3 Qd6 Q5b4 Bh3 Qbc5 Qd7+ Kf7 Re6 Kg8 Qh7+ Kf8 Qh6+
6n1/1K2Nn2/1nr4q/1PRqNbRQ/1q2b3/BBR1r3/1n3Bqb/1qQ3Qk b - - 0 1 illegal: No possible last move, all moves rejected
r2Q2q1/2rrR2N/k1bPR1Nb/1b3BBq/1q5R/NQ1r4/1q4B1/nrn2K2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 Kc7 d4 Kb6 e5 a5 d5 h5 e6 f5 d6 a4 e7 a3 e8B a2 g5 h3 g6 h2 g7 f3 Bh6 f2+ Ke2 c3 Qe1 f4 Qd2 f3+ Kd3 c2 Bg6 c1Q Na3 h4 Ne2 c4+ Ke3 h3 Nc2 c3 Na3 c2 Nf4 Ba6 Rb1 a1R Kd3 Nc6 Bf7 Qb2 Nh5 c1R Qe1 Nf6 g8N Ne4 Qc3 Nc5+ Ke3 Nb3 Bf4 Rh7 Ngf6 Ne5 Bg6 Nd3 Bg5 Rd7 Bg2 f1R Bf5 f2 Nh7 Rfd1 Nf4 f1Q Ng6 Bh6 Qf6 Qh8 Qd8+ Rcc7 Rc1 Rd2 Re1 Ndc1 Re2 Qd1 Kf2 Qg8 Re1 h1B Kf1 h2 Re6 Qdc2 R1e4 Ka7 Rh4 Qe4 Re7 Rd3 b6+ Kb7 b5 Rb1 Re6 Na1 Re7 Rcc8 Re6 Kb8 b7 Ka7 b8R Rcc7 Rb6 Qeb4 Rc6 Kb7 b6 Bb5 Rcc4+ Ka6 b7 Qa4 b8Q Qab4 Bgh3 Bhc6 Rce4 Q4d2 Re2 Qdb4 Bg2 h1Q+ Kf2 Qh3 Kf1 Qhg4 Re7 Qh5 R2e6 Qf7 Qh8 Qe8 Qc3 Qh8 Qd8 Qg8 Qb3
1KN4B/1n3br1/P3q3/2Q3qk/1r3R1N/2nB3n/N1Rr1b2/bRnQQ1bb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 d4 Kf7 a4 Kg6 e4 b5 h4 c5 d6 f3 Kg3 f2 Kf4 g3 Ke5 f4 d7 b3 d5 f3 a5 g2 d6 c4 a6 b4 Bd3 f1Q Na3 b2 Ra2 b1R Qe1 f2 Ne2 g1B Rb2 c3 Kd5 c2 e5+ Kh5 e6 g5 e7 g4 e8N b3 Bf4 c1N Qc3 g3 Rc2 b2 Qa5 g2 Nd4 Qe2 Nab5 f1B Be5 Nc6 Nf3 Rh7 Qe1 Rg7 Nc3 Qg5 d8R Bf2 d7 g1B Na2 Nge7+ Kd6 Bg2 Kc7 Na5 Nd6 Nb7 Bf6 Ra7 Kb8 Nd5 Be5 Be7 Rf8 Nf4 d8Q Be6 Nc8 Nh3 Rf4 Bf7 Qd6 Bf6 Qc5 Kh6 Bc3 Qe6 h5 B6d4 Nh4 Bf6 Rh2 Bh1 Be5 Ra1 Qd1 b1N Rb2 Nc3 Rb1 Be1 Rc2 Bef2 Nb4 Ra4 Na2 Rb4 Bd4 Qgg4 Be5 Kg5 h6 Kh5 Qe1 Qgf5 h7 Qg5 h8Q+ Rh7 Qd8 Rg7 Rf3 Nd5 Bf4 Na5+ Bb5 Ba1 Qee3 Rg8 Qe1 Rd7 Be5 Nc3 Bh8 Nb7 Rf4 Rd1 Qdd2 Rg6 Bd3 Rg7 Qde3 Rd2 Q3e2+ Qg4 Q2d1 Qe2 Nf3 Qe6 Nh4+
1B1K4/r1R2qP1/4Nn2/b2Qrn1k/QnBR1N2/R2rnQ1r/6N1/r2bb1q1 b - - 0 1 illegal: No possible last move
1NR1k1Bn/2Prqbb1/8/2B1B1r1/1qNb2Rr/4Q2Q/2r2rn1/1NnKQ2n b - - 0 1 illegal: No possible last move, all moves rejected
Q3b1Q1/Bb3B2/nNN2R2/7b/1N3bq1/2R2bb1/1KnP1Qkb/2nrrRn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 b4 Kd6 g4 Ke5 g5 a5 b6 c5 b5 h5 b7 f5 b6 f3 g6 Kf4 g7 Kg3 e5 h3 e6 a4 e7 c3 e8N f2+ Ke2 c2 Ba3 c1B Rh2 h4 Ra2 c4 Nd6 c3 Kd3 c2 Kc3 f4 Bb4 f3 Qe1 a3 Ra1 a2 Qe3 Na6 b8Q Nf6 g8Q+ Ng4 b7 Bh6 Qba7 Bb2+ Kb3 c1N+ Kc2 Qg5 b8R Bb7 Qf7 Ne5 Bb5 f1B Qf5 Be2 Qfd3 Re8 Qad4 Qg4 Na3 Bf4 Rf2 h2 Q3c3 h1B Ba5 h3 Bc6 h2 Qee4 Bg2 Nc8 h1B Rb1 a1B Qb3 Bh3 Rf1 Kg2 Nb6 Re7 Bc3 Bb5 Bd5 Be8 Bf7 Bh2 Qee3 f2 Qde4+ Nf3 Ne2 Re6 Bh8 Bbe5 Nd4 Beg3 Nc6 Bae5 Rc8 Bef4 Kb2 Rb8 Qea4 Ng1 Nc2 Re7 Qc5 Re1 Bd4 Rd1 N2b4 Ra8 Re1 f1N Re6 Ne3 Rf6 Nc2 Qf8 Ra7 Qe3 Ra8 Qg8 Rb8 Rc7 Rd8 Qaa3 Rd6 Bc5 Re6 Qd4 Ree1 Qa1 Nb8 Qa8 Na6 Qe3 Qh5 Qd4 Bg4 Rc8 Qg6 Ra1 Bh5 Qf2+ Kh3 Rc7 B1f3 Ne5 Re3 Qh7 Nce2 Qg8 Rc1 Nbd7 Qg4 Ba7 Rf1 Re1 Nc1 Rc3 Re2 Nb6 Re4 Ree3 Rd1 Re1 Re3 Rf1 Ree1 Qd4 Kg2 Nec6 Be4 Qe3 Bf3 Qf2+
2q1b1rr/1b1R1RNn/1b1N3Q/2r2B1q/6qb/6n1/B2BNK1P/nr2R1Qk b - - 0 1 illegal: No possible last move, all moves rejected
3nr3/3kqQNn/3B3R/rB1r1nqq/5N2/bP2Q1Q1/R3bbqN/K3Rr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 c4 a5 Kc2 d5 g4 h5 e4 h3 g5 d3+ Kc3 f3 b3 h2 Kb2 f2 b6 a4 b7 h4 c5 d2 g6 d4 g7 d3 c6 h3 e5 f4 c7 a3+ Ka2 f3 e6 Qg5 e7 Bg4 c8N Ra5 Nb6 Nf6 g8Q Nh7 Nc3 Nc6 b8Q+ Nd8 Nc4 Kd7 Qe1 d1N e8R d2 Re5 Ne3 Re6 d1R Qg6 Rdd5 Nge2 Nf5 Na4 Bc5 Rc6 Re8 Qg3 Bb4 Rg1 h1Q Nf4 h2 Ne3 Qg2 Bb5 h1Q Nf1 Qhh5 Nh2 f1Q+ Qe2 f2 Qf7+ Be7 Qd2 Qd1 Re1 f1R Kb1 Qde2 Rh6+ Kc7 Nc5 a2+ Kb2 Qe6 Qdf2 Be2 Qfe3 Qee4 Nce6+ Kc8 Bd3 Kd7 Ng7 Qe6 Bd2 Qd6 Bb4 Qe6 Qf8 Bd6 Qf7+ Qee7 Rac1 Bc5 Rc2 Bd6 Ka1 Bc5 Qe4 Bb6 Bd6 Bf2 Kb2 a1B+ Kb1 Bf6 Ra2 Be5 Qee3 Bb2 Ba6 Bc1 Ka1 Ba3 Bb5+
3N1Nbn/1rq1r3/1R1rP2q/RnrBq3/N4BQ1/b1B3n1/k5Qb/3K1Qb1 b - - 0 1 illegal: No possible last move
1kB3nR/2bRbR2/1rP1N3/K4nrb/nQ2Q2N/B2rQ3/N1n3b1/q1b2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 e4 a5 h4 g5 c4 d5 b4 Kd7 b6 f3 h5 a4 b7 Kc7 c5 a3 c6 f4 h6 d3 Kc3 f2 e5 f3 h7 g3 b5 a2 e6 d2 e7 d4+ Kb4 d3 Nh3 g2 Be2 f1B Rg1 g4 Qa4 d1N Qa7 g3 Qa6 d2 Ba3 f2 Ka5 Bg4 e8Q Bh5 Rh1 g1B Qa7 g2 Be7 Na6 Qe3 Nc5+ Kb4 Rb8 Ka5 Na4 Ba3 Bh2 Nc3 g1B Nf4 Qd4 Bg4 Be7 Bc8 Bg2 Qg6 f1B Qge4 Qf6 Rc1 a1N Na2 Nc2 b6+ Kd8 Ng6 Qa1 Nh4 Bc7 Rh3 Bgh2 Rf3 Bhf4 Rb1 Bfg5 Rf7 Bgf4 Qg1 Nde3 Rd1 Nf5 Qf2 Nf6 Qfe3 Rg8 h8N Rg4 N8g6 Rg5 Nf8 Ng8 Ne6+ Ke8 Rc1 d1R Rb1 Rd3 Rd1 Rc3 Rd7 Rd3 Qg1 Bc1 Qge3 Ra8+ Kb5 Ra7 b8Q Ra6 b7 Rb6+ Ka5 Bcd8 Qbf4 Bc7 b8R Rc3 Rd1 Rd3 Ng7+ Kd8 Qb4 Be5 Qfe4 Kc7 Ra8 Rc3 Rd8 Rd3 Ra7+ Kb8 Rad7 Bc7 Ne6 Ngh6 Rh8 Ng8 Rhh7 Rd6 Rh6 Rd3 Rh8
3r4/b1N1Q1nq/Rbq5/2QNnbB1/2rRRrrP/7b/1K1b2Bb/Q2Nk3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kf6 Kc2 Ke5 h4 Ke4 b4 f5 c5 g5 e3 d5 b6 a5 b7 g3 c6 a4 b5 g2 c7 g4 b6 f3 Ra3 f4 Qe2 d3+ Kc3 f2 Rh3 d4+ Kb2 d2 Rg3 d1Q Qc2+ d3 Rc3 a3+ Kb3 f3 Ka2 Qe8 Bd2 Bd6 Bc1 Ra4 Rc6 Rc4 Qd2 Nh6 Qe1 d2 Ne2 Kd3 e4 g1B e5 Qc2+ Bb2 d1R Nbc3 Rg8 e6 Nd7 b8N Nf5 Rg2 g3 b7 Rgg4 e7 Ng7 Na6 Bb4 b8Q Bh2 Rg1 g2 Qa8 Ba5 Rh1 g1B Nd5 Rd2 Bh3 f1B Nec3 f2 Ka1 a2 Bc1 Bg2 Rf6 f1R Qe5 Bb7 c8Q Rdd1 Qd8 Bc8 Nac7 Bb4 Qa3 Ba7 Ra6 Ba5 Qed6 B5b6 Qdc5 Rf6 Rf1 Rd2 Nd1+ Ke2 Rf3 Qh7 Rf4 Ke1 Qa4 Qeg6 e8R+ Qe4 Re6 Rd3 Rd6 Ne5 Kb2 Rdd4 Qe7 a1B+ Kb3 Bb2 Qa1 Bc3 Ka2 Bb4 Kb2 B4a5 Be3 Bd2 Rd7 Qeg6 Re4 Rf1 Rd6 Bf5 Rd8 Qc6 Bg5+ Be3 Rd6 Rff4 Rd7 Kf1 Rd8 Bd2 N5e3+ Ke1 Rd5 Bh1 Bf1 Bg2 Rd7 Bh3 Bg2 Rd6 Rd8 Re6 Rd5 Rd6 Rdd4 Rd8 Ned5+
bBN1NQnK/1B4n1/Rn1R2rb/2R1B3/PQ2Q1r1/1q4kn/1r5b/5rnb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 h5 e4 c5+ Kc4 Ke5 a4 b5+ Kd3 f3 g4 Kf4 g5 f2 e5 c4+ Kd4 c3 g6 b3 d6 c2 d3+ Kg3 d7 b4 e6 f4 Ke5 h3 d4 h2 e7 b2 e8R h4 d5 h3 d6 b3 g7 f3 Bg2 f1N Qd3 Qb6 d8Q Bb7 d7 Rh6 Re6 Rg6 Nd2 b1R Qe7 b2 d8B Qb3 Qe4 f2 Nc4 Ne3 Bc7 f1R Nf3 Nf5 Nd6 Ra7 Rf6 Ba8 Ne8 Rg4 Rc6 Ra6 Rc5 Rag6 Bh6 c1B Ng5 Bd2 Nf7 Be3 Rg1 h1N Nfd6 h2 Nc8 Nf2 Qb4 h1B Bb7+ Kh2 Rg3 Nh3 Bf4 Bg1 Rf3+ Kg2 Rd3+ Kf2 Rd6 Bh2 Qe6 Ng3 Ra5 Nh5 Raa6 Nd7+ Kf5 Nb6 Qee4 Rbc1 Be5 b1N Ra2+ Nd2 Rc2 Rb1 Bb8 Rb2 Rcc6 Nf3 Rc5 Ngf6 g8Q Nfg1 Qh8 Bh6 Qf8 Ng8 Qd5 Ngf6 Ke6 Ng7+ Kf7 Ne4 Kg8+ Kg2 Bd4 Kg3 Kh8 Nf6 Qe4 Ng8 Be5+
1rB3NK/3R1N1b/n4PQQ/Br1rk3/1BQb4/2b5/1br2bRq/qnNb4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 a5 g4 d5 b4 h5 f5+ Ke5 b6 e3+ Kd3 a4 c5 a3 g5 a2 c6 h3 b5 e2 c7 e1B b7 h4 b6 h2 f6 h3 g6 Bf2 g7 Rh5 Qa4 Bf5+ Kd2 d3 Kc3 d4+ Kc4 d2 c8Q d1R Nc3 d3 Qb3 d2 Nge2 Bh7 Ne4 Qd6 Qc2 Na6 Ng5 Rb8 Rg1 h1Q Ba3 h2 Qg6 e6 Rc1 a1B Rg2 Bb2 Bb4 Ne7 g8N Nd5 Rc3 Be7 Rd3 Nc3 Nc1 Nb1 Be2 Qe1 Bg4 h1R Ba5 R1h2 Nf7+ Kf4 Qc6 e5 Bc8 e4 Rd4 Qe5 Rd7 e3 Kd3 e2 Qc4+ Bfd4 Bb4 Bc5 Ba5 Ra8 b8Q Qf2 b7 e1B Qd6 Rb8 Qf8 Bb4 Qg7 B4c3 Bb4 Qa5 Qf8 Qa1 Qh6+ Kf3 Ba5 Rb5 Bb4 Qg1 Ba5 Bef2 Bb4 Ra8 b8B Qh1 Bc7 Rab8 Bca5 Qg1 Qh3+ Kf4 Qh5 Re1 Qh3 Ree5 Qh6+ Rg5 Qc5 d1B Kc4 Be5 Kd5 Bed4+ Ke6 Qh1 Qc4 Qg1 Qh3 Rgd5 Ke7 Qh1 Kf8 Qg1 Kg7 Qh1 Ng5 Ke5 Kh8 Qg1 Rg3 Rg2 Qhh6 Qh2 Rg4 Bfe1 Rg3 Rc2 Rg2 Bef2 Nf7+
N6K/nkR1r3/1Nq3Nn/1b1Q1Rrb/2q4q/2rR2bB/Pq2B1Q1/Bb1r4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 Kc7+ Ke5 f5 d4 b5 e4 b3 g4 b2 g5 c4 d6+ Kb7 d7 h3 g6 h4 d5 c3 g7 c2 d6 f3 Ne2 h2 Ke6 f2 Kf7 b4 e5 h3 e6 f4 e7 f3 e8Q b3 Bd2 c1R Nf4 Rh7 Qe4+ Nc6 Bc3 Qh4 d8R Ra5 d7 Bd6 Nd2 b1Q Nc4 b2 Be2 f1Q Qdd5 f2 Ng6 Bg3 Nb6 Nh6+ Kf8 Rd1 g8B Re7 Qg2 Rb5 Rg1 h1R Be6 h2 Bh3 Rd3 Bg7 Rc3 Be5 Qfc1 Rd1 f1B Rd3 Rg1 Bg7 h1Q Bh8 Qbc2 Re8 b1B d8N+ Ka6 Bg7 Bg4 Ne6 Kb7 Nc7 Bh5 Nca8 Q1b2 Rc8 Qca4 Bd4 Qc4 Bf6 Bc2 Rad1 Bb1 Rf3 Rc5 Rdd3 Ra5 Rf5 Rc5 Qf7 Rd5 Kg7 Na7 Rff3 Rg5 Rf5+ Qc6 Kh8 Qc4 Qfd5 Qh2 Bhg4 Qh4 Bh3 Rh1 Bf3 Be2 Be5 Rhc1 Bfg4 Bf1 Be2 Rd1 Qa5 Rcc1 Rd4 Qbc3 Bf3 Q4b3 Qd5 Bb5 Rd3 Qcc4 Ba1 Rc3 Be2 Qb2 Rc7+
2K3nk/4Q3/R3R1qb/3n1R2/Nb3Qbr/1rnn2Q1/p3PBqr/1n1N1N1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 d5 b4 f5 h4 Kf7 c4 g5 c5 Kg7 b6 f3 b5 f4 c6 g3 c7 a4 b7 g2 h5 a3 b6 f2 Nd2 a2 Ndf3 g4 Be3 g3 Nh4 f3 Qc2 Qd6 Qc6 Ra4 Nh3 g1R Qe8 Na6 b8Q g2 b7 Bg4 c8N Nc7 Nb6 Qg6+ Nf5+ Kh7 h6 Bb4 Rh2 Rh1 Re1 g1B Bg2 f1N Bf2 Nd2 Rf1 Nb1 Qe6 Ra6 Na4 Rb6 Qf8 Rb5 b8Q Rb7 Qe3 Rb6 Qf4 Rb7 Bg3 Be3 Nf2 Bc1 Nd1 f2 Rh3 Rh2 Bh1 Be3 Rh5 Rb6 Rg1 f1Q Bf2 Qg2 Qfe8 Bc1 Qee4 Rb7 Nfe3 Rb5 Rf5 Rb6 Kc2 d3+ Kb3 d2 Nf1 d4 Kc4 d3 Qg3 Nd5 Qbf4 Rb7 Qe6 Rb8 Kd4 Rh4 Ke5 Rb5 Qf6 Rb7 Ke6 Rb5 Nde3 d1N Kd7 d2 Kc8 Nb2 Nd1 Nd3 Q6d6 Bb2 Qc5 Bg7 Qe7 Qe4 Nde3 d1N Rg2 Nd1c3 Nd1 Rh5 Rh2 Qg2 Rh4 Bf3 Rg4 Rh4 Rgg5 Bh5 Re5 Bg4+ Rgf5 Bd6 Re4 Rb3 Re6 Bb4 Qd8 Bgf8 Qe8 Ngf6 Qe7+ Kg8 Ra6 Rh7 Re6 Kh8 Ra6 Ng8 Re6 Rf7 h7 Bh6 Nde3 Rh2 Qed6 Kg7 Nd1 Rb7 Rf8 Rf7 Qd8 Rf5 Ra6 Rg5+ Rf5 Rgh5 h8R R5h4 Qdg5 Ngf6 Re8 Ng8 Ree6 Kh8 Qe7
rk4N1/1qN2nb1/BNnrq1QQ/4qB1B/2R1b2K/3R1p2/5P1n/1nb1Q2n b - - 0 1 legal: proof: d4 b5 Kd2 g5 a4 e5 axb5 exd4 h4 gxh4 Ra6 c5 Ra2 c4 Ra1 c3+ Kd3 Bb4 Bg5 Bf8 Bd2 cxd2 Ke4 h5 Kf5 a5 e4 d5+ Kf4 Kd7 g4 Kc7 b4 f5 c4 h3 Kg3 h4+ Kf4 h2 g5 h3 Kg3 a4 e5 d3 e6 a3 c5 d4 g6 a2 g7 Qe7 c6 Bb7 Nc3 Nh6 g8N Bg7 Qe1 d1N Nf3 d2 Na4 d3 Ng5 f4+ Kh4 Ne3 Nb6 d1Q Rc1 a1B Rc4 d2 Be2 Qd7 e7 Nf1 e8B Bab2 B8h5 Qe6 Rg1 h1Q Rg3 h2 Rd3 Qb1 Beg4 Qhd5 Bf5 Kd6 c7 h1N c8B d1N Qe2 f3 Qe1 Qe5 Ne6 Bc1 Nc7 Bc6 Ba6 Nh2 Na4 Nc3 b6 Qb2 b5 Nb1 b7 Nf7 b6 Qb5 Be6 Rh6 Bf5 Nd7 b8Q Rf6 Qc8 Nb8 b7 Qbb2 Re3 Qde6 Nb6 Be4 Qe8 Nc6 b8Q Rh6 Nbd5 Qb4 Rd3 Qb7 Qa7 Rf6 Qb6 Rg6 Qf8+ Kd7 Qd6+ Kc8 Qbe3 Kb8 Qh6 Qec8 Qe6 Rf6 Qe8 Rd6 Qee6 Qd7 Qeg6 Qde6 Nb6
2bbNnk1/1q2Q2N/BR1r2r1/2B3R1/1n2nQr1/1r1pr1Q1/q1B3P1/1R2bK2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c3 h5 e4 a5 b4 f5 b6 Kf7 b7 d5 e5 h3 b5 a4 b6 a3 Nd2 h4 Ndf3 h2 Be3 h3 Ke2 a2 Qe1 Qc7 Qg3 Ra3 Re1 a1B Rd1 Ne7 Nd2 f3+ Ke1 f2+ Ke2 f4 Ndf3 Rg8 Rb1 Rg4 e6+ Kg8 Ng5 Ng6 e7 Rb3 e8Q Na6 b8Q Nb4 b7 f3+ Kd2 Bb2 Qb5 Be7 Ne4 Bd8 Qd7 Nf8 Bd3 f1R Bc2 f2 Qe7 Re1 Nd6 f1Q Rc1 Qa6 Rb1 Qa2 Nf3 Ba1 Rf1 h1N Ne8 h2 Ng5 Nf2 Nh7 Qd7 Qbe5 h1R b8R Rh6 Rb6 Rhg6 Rh1 Bb2 Rh5 Qb7 Qef4 Ba1 Rg5 Re2+ Kc1 Ne4 Kd1 Bb2 Bf2 Bc1 Be3 Bd2 Bg1 Be1 c4 Bd7 c5 Bc8 Qge3 d3 Qeg3 d2 c6 d4 c7 Ree3 Bf2 Rec3 Ke2 d1R Kf1 Rdd3 Bg1 Rc6 Be3 Rd6 Bf2 Re3 Bg1 d3 Bf2 Re2 Bc5 Bf5 Qh2 Re3 Qhg3 Qc6 c8B Qd5 Bb7 Bc8 Ba6 Qc6 Qh2 Qb7 Qhg3
nn2K2n/BrBB4/2R2q2/N1r2bq1/Nnnb2p1/4P1Q1/1q1Q2N1/1krQ1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 h4 f5 b6 d5+ Kb5 a5 c4 g5 c5 d3 b7 d4 e3 f3 c6 f2 h5 d2 h6 f4 h7 g3 c7 g4 Ba3 f3 Bg2 Kd3 Qf1+ Kc2 Rh3 d1R Nd2 a4 Nb3 d3 Rb1 d2 Kb6 Qg5 b5 Ra5 Nc5 Rc1 Nd7 d1N Rh4 Bg7 Rh6 Nc3 Nh3 Ne7 Bc5 a3 Ne5 a2 Nc4 a1N Nf4 Bd4 Rc6 Bf5 c8N Ng6 Kc7 Na4 Ba7 Nb6 Qe1 Rf8 h8Q f1N Qh1 f2 Kd6 Na8 b6 Rc5 Na5 Nh8 Qb4 Qh6+ Ke7 Rf7+ Ke8 Nd2 Bd5 f1Q Ng2 Qff4 Be6 Qf6 Bd7 Nc4 Qbe1 Q4g5 Qh2 Na6 b8B Rh7 Bc7 Nb8 b7 Rf7 Nf4+ g2 Nb6 Rh7 Qhh1 g1Q Ng2 Qf2 Na4 Qd2 Qg3 Qb4 Qg1 Qb2 Q1h2 Kd2 Qg1 Nc2 Ra1 Nb4 Q3h2 Rc3 Rf1 Rc1 Qg3 Kc2 Q3f2+ Kb1 Qd2 N8a6 b8Q Rg7 Rf4 Rh7 Qgd1 Rg7 Rf1 Rh7 Bcb6 Rf7 Qg3 Nb8 Bc8 Rc7 Bd7 Rb7 Bc7
N1n1R3/kbr1b1KR/nB1QN3/1nP2p1Q/3N3b/q2BRr2/4B1b1/1r2q2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 e4 Kc7 g4 Kb6 b4 f5 c4 f3 c5+ Ka7 g5 h3 g6 f2 g7 d3 Nc3 a4 Be2 f1Q Qe1 a3 Na4 d2 Nf3 d1N Qh4 h2 Bd2 a2 Ng5 d4 Ne6 d3 Nb6 Nc3 Re1 Ne7 Kf6 a1B g8B Rh7 e5 Na6 Qg5 h4 Qh5 Rb8 Na8 h3 Bf7 Qa5 b6+ Kb7 Be8 Qa3 Bb5 Qg1 Bc4 Nb5 Bc3 d2 Bcd3 d1R Bd2 Nd4 b5 Rb1 Bc3 Rg7 Ba5 Rg3 Kf7 Rf3 Kf6 Bd7 Kf7 Rc8 Kf6 Kb8 b7 Ka7 b8N Bc6 Kf7 Rc7 b6+ Kb7 Kf6 Nb5 Kf7 Be4 Nc6 Nc8+ Kf6 Bc3 Ncd4 Be7+ Kf7 Kb8 b7 Qf2 Kg7 Ka7 Bd1 Bc6 Re3 Be1 B1e2 Qf1 Ng5 Bh4 e6 Bd8+ e7 Qe1 Nge6 Bd5 Rg1 h1B Rg3 h2 Rh3 Bf2 Rh4 Bg2 Rh3 h1B Rh2 Rc6 e8R Be7 Rh3 Rc7 Rh2 Bfh4 Rh3 Nb4 b8Q+ Ka6 Rh2 Bb7 Rh3 Na7 Qd8 Nc8 Qd6+ Ka7 Qg5 Bg3 Rh7 Na6 Qh5 Bgh4 Bb6+
1n4R1/B4q2/2Q2P2/1n6/Bb1NbpRN/1q1NR1Qk/1b2bbr1/2qrnB1K b - - 0 1 illegal: No possible last move, all moves rejected
4n1r1/3k4/K1NbpR1B/B1q1Pbn1/3q1RQr/1Q1nR3/r3b2N/b3N1Bb b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 Kd2 g5 Kd3 a5 Kc4 d3 b4 d2 e4 d6 f4 a4 h4 g3 f5 g4 h5 a3 b6 a2 Kb5 d5 c4 d4 h6 d3 h7 Ra4 b7 Nd7 b8B Bb7 f6 Bg7 c5 Ra7 c6 Bf8 c7 Ne5 f7+ Kd7 Rh3 Nf6 Nf3 g1R Nh2 g2 Na3 g3 Qb3 d1B Bh6 d2 Nc2 Nd3 Ne1 Be2 e5 Rg8 h8B Ne8 Bf6 d1B Rb1 Ra3 Ba7 Rh1 Bg1 a1B Rc1 Bc8 Rc4 Ra2 Rf4 Bb7 Kb6 Bc2 b5 Qc8 Bh4 e6 Bd8 Bd6 f8R Bb1 R8f6 Bbf3 Bd4 g1Q Bf2 Qf1 Bg1 g2 Rg3 Bb7 Rgf3 Qf2+ Re3 Qa8 c8N Qa4 Ne7 Bd5 Nc6 Qd4+ Kb7 Be4 b6 B4f3 Ng4 Rh4 Nh2 Bd5 Qa4 Bc2 Ka6 Qc5 Ref3 Qfd4 b7 Be4 b8Q Bf5 Be3 g1N Ba5 Nh3 Qbb3 Ng5 Bg1 Bcd1 Rh3 Bf3 Qac4 Bh1 Re3 Be2 Qca4 Qdc3 Qe4 Q3b4 Qg2 Qbd4 Qg4
1r1Q3N/2q2bN1/k1NpRrRK/2RB2r1/1q2nr2/n7/nQP1rBQ1/b5q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 g4 h5 b4 a5 e4 d6 g5 Kd7 b6 Kc6 b7 Kb6 e5 a4 b5 f3 g6 f2 e6 d3 Ke3 f4+ Ke4 a3 Kf5 d2 g7 f3 Kg6 h3 e7 h4 e8N a2 Qe1 d1N Rh2 Nc3 Nd2 Nc6 Qe2 Nf6 g8R Na5 Qc4 Rh5 Bb2 Qc7 Qb3 Be6 Bd3 f1R Re2 f2 Be4 h2 Bd5 h1R Nh3 Nc4 Nf4 h3 Nf3 h2 Ng7 Rb8 Ne5 Nfe4 Nc6 Rg5+ Kh6 Na3 Ng6 Bf7 Nh8 Re1 Bc1 f1R Qb2 Rf4 Bd2 Ref1 Be1 Rhg1 Re3 R1g2 Bf2 Be7 Rd1 a1Q Rde1 Na2 Rc3+ Nc5 Re5 Bf6 Re6 Qe1 Rc4 Bd4 Rc3 Ne4 Rc4 Qb4 Rc5 Rf8 b8Q+ Qb7 Qe8 Qc7 Qd7 Rb8 Qd8 Kb7 b6 Ka6 b7 h1Q+ Bh4 Qg1 Bf2 Ra8 b8Q Bf6 Bg3 Re2 Bf2 Bd4 Rge8 Bc3 Rg6 Be5 Ree6 Rf6 Qb1 Ba1 Qg8 Rf4 Qbd8 Rb8 Qb2 Rgf5 Qh4 Rg5 Qg4 Rf6 Qd8 Rf4 Qg2 Rf6 Bh4 R1f4 Bf2
BQ1b1Q1K/2qk1QNn/1p1B1R2/b5Pb/3R1N2/2q1R2r/N1n3bq/1r2n1b1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 c5 Ke3 e5 d4 h5 a4 h3 g4 c4 f4 h2 g5 b3 d6 h4 a5 b6 a6 c3 d5 c2 f5 b2 f6 h3 a7 Bg4 f7+ Kd7 Qe2 Be7 f8R Qc7 Ra3 Bd8 Qf3 Nf6 Bg2 Bh5 Nc3 b1Q Na2 Qb2 Ne2 Nh7 Rd1 h1B Nf4 h2 Rd4 Nc6 Rf6 Nb4 Qf2 Rc8 a8Q Qa1 Bf3 Bg2 Qb8 h1Q Rb3 Qh2 Ba3 Ke8 Rbd3 Qac3 d7+ Ke7 Ke2 c1B Re3 Qd6 Qf1 Nc2 Qf2 Rc4 Qf1 Rb4 Kf2 Qg1+ Kg3 Rb1 Bc5 Ba3 Kh4 Bb4 Qc4 Ba5 Bb4 Bf7 Kg4 Bh5+ Kf5 Qh2 Qcc7 Bg4+ Kg6 Bh5+ Kg7 Qdc5 Red3 e3 Qcb7 e2 Re3 e1N Ba3 Bc7 d8N e4 d6+ Kd7 Nde6 Q5c4 Qd5 Bd8 Qdb7+ Qc7 Q7a7 Re8 Bc5 Re7+ Kh8 Rf7 Ng7 Re7 Red3 e3 Ba8 e2 Qab7 Re3 Ba3 Rh3 Re3 Nf3 Qd5 e1B Qg8 Qb7 Qf8 Bf2 Qf7+ Kc6 Bc5 Nfe1 Bb4 Bg1 d7+ Kb5 Bd6 Kc6 Rfe6 Be7 d8Q Bf6 Qdg8 Bd8 Qff8 Kd7 Rf6 Qbc7 Qgf7+
q1n2b2/R4Q2/P1nNQ3/n1qp2QK/2N1r3/Bn1rb2B/N1k1r1nR/3b1R2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 a4 e5 c4 d5 a5 h5+ Kh3 b5 g4 d3 c5 d2 c6 b3 f6 b4 f5 b2 a6 b3 f7 Ne7 c7 Nbc6 Ne2 Kd3 g5 e4 g6 e3 Nbc3 b1N g7 b2 g8N Na3 Qa4 b1N Qd1 Nc4 Rh2 N4a5 Ng1+ e2 Qe1 d1N Bg2 Ne3 Nf6 Kc2 Ra4 Nd2 Qf2 e1B Qf1 Ndb3 Nf3 Bd2 Na2 Rh6 Ne8 Re6 Qf2 Re4 Nd6 Ra7 Bf1 Ng2 Qg1 Be3 Ba3 Bd7 Rb4 Qa8 Nd2 Nc8 Rb8 Rb7 N2c4 Rb4 Nb2 Rbd4 Rb7 Rd3 Nbc4 Be8 Ra7 Bd7 Rh1 Be8 f6 Bd7+ Kh2 h3 Kg3 h2 Kf3 Bg4+ Kg3 Bg7 f8Q Bd1 f7 h4+ Kh3 Bgh6 Qe8 Bg7 f8R Bgh6 Rf4 Bf8 Qh5 Nb6 Qf3 Nc8 Kg4 h3 Kh5 Ne1 Qg5 Ng2 Rg1 h1Q Rh4 Qh2 Rh1 Qg1 Rf4 h2 Rf5 Ne1 Bh3 Ng2 Rf7 Qf2 Rf1 h1R Rh7 Rh2 Rh6 Nb6 c8Q Qg1 Qe6 Nc8 Rg7 Bf4 Rf7 Qc5 Ra7 Be3 Rh8 Ne1 Rh6 Re2 Qff7 Ng2 Rhf6 N6e7 Rh1 Nec6 Rh2 Ncd4 Rf3 Ndc6 Rf1
6QN/r2rnbP1/2n2b1q/4Rn1B/Q1BR1nk1/4BN2/pnbN3K/2Q1q1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Ke6 b4 Kf5 c5 a5 b6 h5 b7 d5 b5 a4 e3 f3 b6 d3 e4+ Kg4 e5 f5 g3 a3 e6 f4 e7 d2 e8N h3 c6 d4 c7 d3 Qc2 d1B Qb3 a2 Qf7 h4 Nd6 h2 Be2 h3 Qg7+ Qg5 Qg6 d2 Ba6 Nc6 b8Q Bg7 b7 Bf6 Qe8 Be6 c8B Qh6 Bc4 Ra7 Qc7 Rh7 b8Q Rd7 Nf7 Nge7 Nh8 Bc2 Qb3 Bg8 Qa4 d1N+ Kf1 f2 Nf3 Be6 Be3 Bf7 Nbd2 Nb2 Rg1 h1R Re1 h2 Kg2 f1N Bb7 Nb4 Be4 Nbc6 Bg6 Bd4 Kf2 Bf6 Rg2 Rg1 Qg8 h1Q Qcc8 Kh3 g4 Ng3 g5 Ne2 Rh2+ Kg4 Rd1 Re1 Rh5 Qh4+ Kg2 Rf1 Ra1 Qe1 Kh2 Rg1 Qc7 Ra8 Rd1 Ra7 Nh4 f3 Qcc8 f2 Nhf3 Na5 Qc5 Nf4 Qca3 Nbd3 Qc1 Nb2 Nf1 Ra8 Rd4 Nac6 N1d2 Ra5 Bh7 Raa7 g6 Rg3 g7 f1N+ Kh1 Rg2 Bg6 Rg3 Bf2 Ne3+ Kh2 N3f5 Be3 Nh4 Rf5 Rg1 Re5 Nhf5+ Bh5+
qQ1k4/b1r1Rbpn/5rq1/BbR1RP2/Nb2Q3/rB3b1N/4Q3/q1NK2n1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 a5 h4 e5 b4 d5 c4 a4 f5 a3 c5 e3 b6 g3 b7 e2 h5 d3 b5 a2 h6 e4 h7 g2 b6 d2+ Kf2 e1B+ Ke2 d4 c6 d3+ Ke3 Bc5+ Kf4 e3 Kf3 e2 c7 Nf6 Rh3 Be6 c8R Rf8 h8Q Nc6 b8N Nh7 b7 Ba7 Nd7 Bf7 b8Q Nd4+ Ke3 Ke7 Rc5 Nf3 Ne5 Qc8 Rh4 Kd8 Nh3 Ng1 Qb7 Qc6 Nc3 Qd5 Rb1 a1Q Rb5 Rc8 Rh6 Rc7 Re6 Qda2 Qc2 d1B Na4 Bb4 Qe4 e1R+ Qe2 d2 Nd3 Bc2 Re7 d1B Kf2 Qd5 Bd2 Qa8 Nc1 Bd3 Ra5 Bb5 Qg8 Bh5 Qb3 Rf6 Ke3 Bf7 Bc3 Bh5 Kd2 Bf3 Qbb1 Bb3 Rce5 Bf7 Kc2 Bd7 Rac5 Bb5 Qb2 Rd1 Qb3 Rd3 Qb2 Ba3 Ba5 Bb4 Qb1 Ra3 Kd1 Bg4 Q2f3 Bgh5 Bc4 Bg4 Qfe2 Bf3 Nf4 Nh3 Bb3 g1Q+ Kc2 Qg4 Kd1 Ng1 Nh3 Qg6 Qb7 Qg2 Q1e4 Qg6 Qb8+
rNQ1br2/b2BBP1B/1R3nn1/2b1r1n1/Npk3Q1/5Q2/q2R1nq1/2KNn3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 b5 a4 h5 g4 c5 f4 e5 a5 c4 f5 b3 a6 e3+ Kc3 b2 Kc2 c3 a7 e2 d6 e1N+ Kb3 c2 d5 e4 g5 h3 f6 h4 d7 b4 d6 Ke6 g6 h2 f7 e3 g7 h3 Ra3 e2 Ra2 Ne7 g8B Nf3 Qd4 e1N Bh7 Qa5 d8Q Ng5 d7 Ng6 Bb5 Bc5 Nc3 Rf8 Nge2 b1R+ Bb2 c1B Qg4+ Ke5 Nd1+ Kd5 Rf1 h1Q Rf6 h2 Rb6 Ra1 Bf6 B1e3 Kb2 Qg2 Be7 h1N Qe8 Ba6 d8N Nd7 Nc6 Nf6 Qec8 Nf2 Nb8 Rc1 Be8 Bb5 Bd7 Bed4+ Nec3+ Kc4 Qg3 Ba4 Qg4 Rc2+ Kb1 Re2 Rd2 Re5 Kc1 Bb5 Qb7 Qa6 Qbf3 Qa2 Na4 N2e4 Bf5 Be8 Bd7 Nf2 Na6 Rd8 a8Q Rc8 Qac6 Ra8 Qc8 Ngh3 Qd8 Bd6 Rb5 Ng5 Rb7 Bb8 Rb6 Ba7 Nb8 Qg3 Qgf5 Bc5 Qc8 Qg2 Q5g4+
1n1Q1k2/b4p2/BQ1b1n1r/n3QbR1/NPrq1r1b/BRq4B/3N1N2/5Kb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 a5 c4 g5 b4 d5 h4 d3 b6 d4 c5 g3 c6 g2 b7 g4 h5 f3 e5 f2+ Kd2 g3 e6 a4 h6 a3 h7 a2 c7 Qf6 e7 Bf5 Nh3 g1B c8B g2 Be2 f1R Qc2 Rf4 Kd1 d2 Qc7 Bf2 Bg4 g1B Ke2 d1N Nd2 d3+ Kf1 Qc3 Ba3 Bh4+ Nf2 Nb2 Qb6 Nf6 Bh3 Nc4 Rb1 a1B Rb3 Na5 Rh2 Ra6 Rg2 Rg8 h8Q Rgg4 Qh5 Rc4 Rg3 Rgf4 Rg5 Bb2 Qe2 Ba1 Qe5 Bb2 Ne4 d2 Nc5 Ba1 Na4 d1Q+ Kg2 Nbd7 b8Q Qdd4 Kf1 Bb2 Qa8 Nb8 Qad5 Bc1 Qa8 Be3 Bb7 Kd7 e8N Be7 Nd6 Bf8 Qec5 Ke7 Ne4+ Ke8 Bc8 Bd6 Nd2 Kf8 Qe5 Qd5 Qbb7 Ba7 Qb6 Qdd4 Qad5 Bc5 Qd7 Bd6 Qdd8+ Ne8 Qe1 Be5 Qb5 Rh6 Qbb6 Bc7 Ba6 Bd6 Qdc7 Nf6 Qe5 Rc5 Qd7 Rc4 Qdd8+
b1br1n1r/R2PpQ2/1QnqnB1n/1B3NRB/5RN1/5Q1K/3k1rn1/q1b5 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 d4 Kg6 f4 c5 Kf2 a5 Kg2 h5 b4 e3 f5+ Kg5 d5 Kf4 b6 a4 g5 h3+ Kh2 a3 b5 h4 b7 c3 b6 a2 f6 c2 f7 c4 g6 c3 d6 Nc6 b8Q Bh6 Bd2 c1N g7 c2 b7 Nd3 Qa7 c1N b8R Ne2 Qb6 Ned4 Nf3 Nde5 Rg1 Ne6 Rg5 Nd7 Bb5 Ndf8 Bc3 e2 Na3 e1N Nc2 Ng2 Ncd4 Ke3 Ne5 Qc7 d7 Qd6 Rb7 Rb8 Rb1 a1Q Rb4 Ra8 Qf1 Ra2 Bb2 Kd2 Nf5 Ra8 Rf4 Rb8 Kg1 h2+ Kf2 h1B Ra7 h3 Kg3 h2 Qf3 Ra8 Kh3 Rb8 Ng4 Ra8 Rh5 Bg5 Bf6 Nh6 g8B Nh4 Qe2+ Kc1 Ng7 Ncd4 Bh7 Nfg6 f8Q Ba6 Qb7 Rd8 Qe8 Ngf8 Qb8 Bc8 Qb6 Ba8 Rf3 Nc6 Nf5 Bd2 Bg6 h1R+ Qh2 Rg1 Qh1 Rf1 Rf4 Kd1 Rg5 Bc1 Bf7 Kd2 Qf3 Rf2 Bh5 Ng2 Qf7
1K4R1/P2N1R2/4QBq1/bB3bn1/Qpn1bQn1/3N2R1/rN1q1n2/q1n2kr1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 a4 b5 d4 f5 g5 c5 a5 f3 a6 h3 d6 b3 g6 f2 d5 f4 g7 h2 d7 f3 d6 b2 Bg2 f1Q e4 f2 Qd2 h4 Qd1 h3 Nf3 Nf6 g8N Nh7 Ne1 Ng5 Rg1 h1B Nc3 b1Q Bb2 h2 Nf6 Rg8 Nd3 b4 Qg4 Be7 Na4 Qfe1 Bc3 f1N Qf4 Nd2 Bf1 Rg6 Rg3 Nc6+ Kf5 Ne5 Nab2+ Kb3 Be2 Ng4 e5 Kc2 e6 c4 Ra4 Qb6 d8Q Qa1 Qg8 Bd8 d7 Qed1 Be5 c3 e7 Nc4 e8Q Qd2 Qge6 Bc6 Ra3 h1N Bd4 Bc7 d8R Nhf2 Nd7 Bh1 Rf3 Qc6 Bf6 Ba5 Rh3 Rg8 Rh7 Qg2 Rf7 Qgg1 Na4 Bf3 Bf1 Kd1 Rb3 c2 a7 c1N Ra3 Rb8 Rc3 Rb6 Rb3 Ra6 Nab2+ Kc2 Nb6 Rg6 Qa4 Rg7 Nd7 Rg6 Qfe3 Be4+ Kf4 Rg7 Rg8 Rh7 N7e5 Na3 Qe7 Bd8 Nc5 Rh1 Qb5 Nf3 Nd1 Ngh2 Nb2 Bcf5 Qe6 Qg6 Ned7 Ng5 Ke5 Rg1 Qf4 Ra5 Rd3 Nhg4+ Kd6 Ra4 Qc6 Ba5 Qb5 Qe3 Rc3+ Kd2 Be2 Ke1 Bf1 Qe2 Rg3 Qe3 Bc4 Qd2+ Ncd3+ Kf1 Qc6 Nc2 Ba6 Ra3 Qa4 Ra2 Bc4 Nce3 Bb5 Nd5 Kc6 Nb6+ Kc7 Nc4+ Kb8
1r3nQ1/NRR1Bnk1/4Q3/n3bK1R/b5n1/2nn4/nrpQ2qP/1bN2N1B b - - 0 1 illegal: No possible last move, all moves rejected
1R1q1Q1r/3b2RQ/2bN3R/4br1n/n2r4/q1qP1BNk/1p1nNb2/BB1K4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Kd7 g4 f5 a4 b5 e5 c5 g5 h5 d6 Ke6 d3 b3 g6 b4 d7 c4 a5 h3 a6 c3 a7 h4 g7 b2 Ra4 b3 Bg2 f3 Bg5 f2+ Ke2 f1R Na3 b1N Qd2 h2 Ra5 c2 Nc4 c1B Bc6 f4 Qb4 Kf5 e6+ Kg4 e7 h3 e8N Bb2 Rf5 f3+ Ke3 f2 Ke2 Nf6 g8B Na6 Qa3 Be5 Be6 Nc5 Qa1 Nd2 Ncd6 Na4 Ng7 Nh5 Bf6 Rb8 a8Q Rb4 Bb7 Rd4 Rg5+ Kh4 Bf3 Be7 Ne4 Bc5 Qe1 Ba7 Kd1 Bc5 Ne2 Ba7 Rhg1 h1Q Nd6 h2 Ngf5+ Kh3 Rg6 Qg2 Rh6 h1B Bc4 Qg7 Qe4 Qge7 Rg7 Bb6 Nfg3 Ba7 Nf7 Qa3 Qh7 Bb6 Nd6 Bg2 Bb7 Bc6 Ba8 Qc7 d8R B8d7 Rf8 Qd8 Bf7 Rg1 Bd5 f1Q Bc4 Qf4 Qf1+ Rg2 Qf3 Rf2 Rfg8 Qg5 Bd5 Qc7 Rb8 Bc5 Bb7 Qa5 Qf4 Qc3 Bf3 Qh4 Ba6 Ba7 Bc4 Re4 Bd8 Qcb4 Ba5 Bb6 Bh1 Qd8 Qf8 Rf5 Bf3 Bf2 Be6 Qc5 Bc3 Rd4 Ba1 b2 Ba2 Qcc3 Bb1
k1Q1r1BB/3Rrnb1/2N4q/1R3n2/1P1pb3/K1Q1q3/2qRq3/n1N1rQNb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 Kc7 g4 Kb7 c4 f5 Kc2 a5 Kb3 h5 b6 f3 c5 f2 e5 d3 e6 d2 e7 d4 e8Q h3 g5 h4 g6 f4 g7 a4+ Ka3 h2 Ra2 f3 Ne2 h3 Ng3 Ra7 c6+ Ka8 c7 Bf5 c8Q Qg5 Ra1 Ne7 g8R Qe3+ Qb3 d1Q Qf7 Bg7 Ra2 Qc2 Qbc3 Be4 Bc4 f1R Ne2 f2 Rd8 Re8 Nd2 Re1 Rd7 f1Q Nb3 Nf5 Ng1 Qfe2 Qf6 Rc7 Bg8 Rb7 Bd2 Rc7 Nc1 Ra7 Qa6 Nc6 Rb2 Ne5 b7+ Kb8 Qfe6 Nf7 Qad3 Q2f3 Qf1 Qfe2 Ka2 a3 Qa6 Qg3 Bg5 Qgf3 Bf6 Qfe3 Ka1 a2 Qac4 Ra4 Qc8+ Ka7 b8N+ Ka8 Be5 Ra6 Bf6 Rae6 Be5 R6e7 Bf6 Qb3 Rd2 Qbd1 Kb2 a1N Ka3 Qc2 Nf3 Qh6 Rg1 h1B Rg5 h2 Ng1 Qh3 Rh5 Qhe3 Be5 Bhg2 Bf6 h1Q Rg5 Qh6 Rh5 N5d6 Rb5 Nf5 Be5 Bh1 Bf6 Bf8 Bh8 Bg7 Nc6+
Qq1n2K1/NnB4r/1N1R3p/2b5/2r3b1/nqPb2Br/5q1N/1BkRQQb1 b - - 0 1 illegal: No possible last move, all moves rejected
2n1BN1Q/2NB1qR1/pBq5/1b1Q1b1r/1kn2br1/4PbQ1/R2n1q1r/2K4N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kd6 b4 h5 g4 f5 g5 d3 g6 a6 b6 f3 e3 f2 g7 f4 b5 Kc5 b7 d5 b6 h3 Ra4 h2 Nc3 f3 Qe1 d4 Bg2 f1N+ Kd1 d2 Na2 f2 Bf3 h4 Nc3 h3 Ra3 Qd7 Bc6 Bd6 Nd5 Ne7 g8Q Rh5 Qf7 Bf4 Nc7 Kb4 c5 Qd5 Bb5 Nbc6 b8Q Ne5 b7 Nc4 c6 Bf5 Qh8 Rg8 b8N Rg4 Bb2 Nc8 Ne2 Qg2 Rg1 h1Q Ba4 h2 Nd7 Qd5 Qfg8 Qf7 Nf8 Qe4 Ra1 h1R Ra2 R1h2 Ng3 Qed5 Nh1 Qde6 Bc2 Qef6 Be4 Qd6 Kc2 d3+ Kb1 Qde6 Bd4 Qd5 Qd1 Qc5 Qf3 d1B Qg3 Nfd2+ Kc1 f1Q Bf3 Qb5 Bb6 Ba4+ Bd1 Qf2 Be2 Qg6 Qd5 Qc5 Bd1 Bb5 Ba4 Qe7 Nce6 Qef7 c7 Ne7 c8B Qgf6 Nd4 Qc6 Bd7 Nc8 Be8 Ne4 Nde6 d2+ Kc2 d1B+ Kc1 Ned2 Nc7 Rgg5 Qh4 Rg8 Rg7 Be2 Qg3 Bf3 Rh7 Rg4 Rg7 Bh7 Bc2 Bg6 Bf5 Bh7 Be6 Bf5 B6d7
4rbnQ/P1R3Rn/2q5/bQ1qRN1K/1nQnB3/1B2rr2/k6p/Bb1N1q2 b - - 0 1 illegal: No possible last move, all moves rejected
2rr1r2/rn2Bbq1/3Q1r1N/N2bR1QP/5R2/1Nk2B2/1prbR1Kn/1Q1n4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 d4+ Kc4 h5 c5 a5 g5 a6 b5 d6 f5 d5 b3 d7 g3+ Kg2 b2 d6 b4 a7 f3+ Kh3 f4 Qd2 b3 Bg2 f2 e4 f1R e5 f3 e6 f2 e7 g4+ Kh4 Qc7 d8Q Bh6 e8N Ne7 d7 Nbc6 Qe1 Bd2 Bh3 g2 Qe5 g3 Qe6+ Nd5 Qef6 Bb7 Ng7 Nc3 Qg5 Rf8 Qe5 Nd1 Bg4 Rc8 Kh3 Na5 a8Q Bd5 Ra2 Nb7 Nf3 g1R Qd6 g2 Na3+ Kc3 Qg5 b1B d8R c4 Qb8 Bg6 Nd4 Bgf7 Re8 Qd7 Rh2 Rh1 Re2 g1R Ngf5 Rcd8 Bf3 Rg2 Re5 b2 Qa8 Qe7 Nb3 Qf6 Nh6 Qg7 Qa7 Be3 Qe6 Kb4 Qg3 c3 Be4 c2 Nc4 Nc3 Bd2 c1R Qg5 Ra1 Qeg6 Rfc1 Qb8 f1N Ra6 Ra3 Rf6 Ra7 Nca5 Bf4 Be3 Nd1 Bb6 Rcc8 Bc5+ Kc3 Be7 Rhg1 Qd6 Re2 Rf2 Nh2 Rff5 Rd2 Re2 Rf1 Kg2 Be3 Rf6 Rf5 Bf3 Rf4 Qb1 Rc2 Re4 Bd2 Rfe6 Rf5 Rf4 Rf6 R6e5
1rBBbR2/nB2n1b1/1K1bbbN1/RQ6/2qp3b/2NqP1r1/3N1Q1k/4R1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kf2 Ke7 c4 Ke6 h4 Kf5 b4 a5 e6 d5 c5 g5 e7 a3 e8N a2 h5 g3+ Kf3 g2 c6 d3 Ke3 Kg4 Kd4 Kg3 h6 f5 h7 f4 e3 f3 b5 d2 c7 f2 b6 g4 b7 a4 Bd3 f1Q Bb2 a3 Ng7 Be6 c8B Bd6 Nh3 g1B Bf5 Bf2 Qa4 d1B Qc4 Ba4 Be4 Ne7 Qe2 Be8 Nf4 Rg8 h8R Qc1 Ng6 Nbc6+ Kd3 Na7 Kd4 Qc6 Re1 Rb8 Nh5+ Kh2 Nd2 g3 Qf3 g2 Nhf4+ Bh4 Ne2 g1B Nc3 Rg7 Rf8 Rg8 Qf5 Qb5 Bg2 Qdd7 Qf2 Rg7 Rad1 a1B Rc1 a2 Rc2 Ra8 b8Q Qd8 Qb7 Rb8 Qa6 Qe2 Qb5 Qc7 Ba3 Bb2 Bc5 a1B Bb6 Qc6 Bd8 Qa6 Nh8 Rg3 Ng6 Qa2 Rcc1 Bf4 Kc5 Qf1 Ne2 Bg7 Rc2 Baf6 Nc3 d4 Rb2 Qa4 Ra2 Qd3 Raa1 Qb3 Ra5 Qa2 Qf1 B4e5 Bgb7 Qac4+ Kb6 Bd6 Qf2+
2RQQ3/2n1Qrqn/N2rb1qB/pbb5/4PR2/1b2R1Nk/B4b2/bK4bB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 b4 d5 h4 a5 h5 g5 h6 d3+ Kb2 d2 e3 g3 e6 a3+ Ka2 d4 h7 d3 c5 g2 b5 g4 b6 g3 e7 Ra6 e8B Qc7 c6 Nf6 b7 Bc5 Nc3 Rf8 h8Q Be6+ Qb3 Kg4 e4 d1Q Na4 d2 Bc4 Nh7 Rh6 f5 Rf6 f4 Rf5 f3 Kb1 f2 Qb4 f1B Ne2 g1B Bh5+ Kh3 Ba2 g2 Rf4 Bgf2 Ng3 g1B Bf3 Rf7 Qd8 Bb5 Bh1 Qg4 Qe8 Qb6 c7 d1B c8R Bdb3 Qd8 Qg7 Be3 Nd7 b8Q Ndf6 Qe8 Qc6 Qd6 Qb6 Qdd8 Nd5 Bd2 Nc7 Bc1 Bce3 Nc5 Qd6 Bd2 Rb6 Na6 Bc5 Qee7 Qc6 Qbd4 Qe8 Q4d7 Qeg8 Qd7e8 Rd6 Rg4 Qg6 Bh6 Q8g7 Rf4 B3a4 Bd5 Bd1 Ra2 Bb3 Re2 a2+ Kc1 a1B Kb1 Bd1 Ba2 Bdb3 Re3
1n2N3/K4B2/R4n1R/1BB2Qb1/b1PkNn1n/2Np1b2/bb2Rr1Q/1nr1q3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 a5 b4 h5 e4 d5+ Kd3 f5 c3 a4 b6 h3 b7 f3 g5 f2 g6 f4 b5 h2 g7 a3 b6 a2 Qc2 f3 Na3 h4 Qd2 h3 Qd1 Be6 Nc2 Be7 Na3 Bg5 Nb1 Qe7 Ba3 Nf6 Qe2 Rc8 Bg2 f1N g8B f2 Qg4 Nd2 Bf7 f1N Qh5 Ng3 Bf1 Nf5 Ne2 Nh4 Bc5 Rc6 Ng3 Ra5 Na3 Nb1 Nb5 Rc7 Be2 Ra4 Re1 h1N Bf1 h2 Re2 Rb4 Qg4 Rb2 Qf3 Nbd7 b8R Qe8 Rd8 Nb8 b7 Rc6 Rd6 Rc8 Nf5 Ng3 Qg4 Ngh5 Ng3 h1B Rc6 Na6 b8Q+ Rc7 Qh3 Bf3 Qh2 Qe7 Qc8 Nb8 Ra6 Nd2 Rd1 a1B Rc1 Nb1 Qf8 Kf4 e5 Ra2 Rce1 Bb2 Ne4+ Kf5 Bg8 Bf7 e6 Qe8 e7 Nf4+ Kc2 Ke5 Kb3 d3 Kb4 Be6 Bf7 d2 Rc1 d1B Rcc2 Ba3+ Ka5 d4 Kb6 Bb2 Rcd2 Rc8 Ka7 Ba4 Rd3 Bh5 Rh3 Bf3 Bg2 d3 Bh1 Qd8 e8N Qd4 Bg2 Qg1 Bh1 Qe1 Bg2 Nf5 Rh6 Nh4 Bh1 Ra3 Bg2 Ba2 c4 Rc3 Bh3 Rc1 Nbc3 Rc6 Bd7 Re6 Be7 Kd4 Bb5 Re5 Bd6 Rf5 Bc5+ Ke5 Kb6 Nh5 Bg6 Bg2 Bb4 Kd4 Bc6 Nd5+ Ka7 Rf2 Bb5 Bf3 Qf5 Ndf6 Bf7 Nf4 Bc5#
1QrR4/2rQ1BR1/n1rq1R2/1QBN2pb/3b2k1/bKb1r1br/7P/3N1nN1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 c4 Kf6 Kc2 Kf5 b4 e5 f4 a5 b6 d5 c5 g5 c6 d3+ Kb3 d4 b7 a4+ Ka3 g3 c7 e3 Bg2 e2 Nf3 e1R Qd2 e4 Ka2 a3 b5 e3 b6 e2 Kb3 a2 Kc4 Ne7 Qc3 d2 Ng1 d1R Be3 d3 Qb2 d2 Qb5+ Nd5 Bf2 Ba3 Bc5 Rh3 Kb3 Na6 b8N Qd6 b7 Rc1 Nd7 d1R b8Q Kg4 f5 Ne3 f6 Nf1 Bd5 g2+ Nc3 Rdd3 f7 Rde3 Rb1 a1B f8R Rc2 Rg8 Rec1 Nb6 e1B Bf7 Bg3 Nd5 Bd7 Rg7 Be8 Rb2 Ra7 c8Q+ Rd7 Nf3 g1B Qd8 Rc7 Qdd7+ Re6 Nd1 Bd4 Rb1 Bac3 Ng1 Re2 Rb2 Re3 Rf2 Rc2 Bg8 Bh5 Rf6 Kh4 Bf7 Re8 Ne2 Rec8 Rg1 Rc6 Rg2 R8c7 Ng1 Rc1 Rd2 Rc8 Qda7 Kg4 Qd7+ Qe6 Rb2 Rd6 Ba7 Bdc5 Rd2 Ba5+ Rd3 Bcb6 Qe8 R1c7 Qe7 Qd7 N5c3 Rdc6 Rd5 Bd4 Bc5 Qd8 Qe8 Qe7 Rd8 Qd6 Qe7 Re5 Nd5 Bac3 Qe8 Re3 Qd7+
4b1b1/4r1P1/BRN3R1/1nKNBr2/B1b3pb/2RrQ1r1/2rq1Q1Q/1kn3b1 b - - 0 1 illegal: No proof kernel
n1Nb1nr1/8/RQ1NrkbK/R1n5/BNq1nr1P/2B2n2/p4B2/1b2Qr1R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 a5 c4 g5 e4 d5 h4 f5 b6 d3 c5 g3 c6 g2 b7 a4 c7 d4 b5 a3 b6 g4 e5 f3 e6 g3 Qc2 a2 Rh2 f2 Ne2 g1R Qa4 f4 Qa3+ Kf6 e7 f3 e8Q g2 Qb4 Na6 b8B Bf5 c8R Be7 b7 Nc7 Rh3 Ra6 Qd7 Bg6 Qc5 Na8 Qe8 Qd5 Nbc3 Bd8 Ba7 Re6 b8N Qc4 Qb6 Ne7 Rc5 Rg8 Nf4 Rh1 Na6 g1N Be2 f1R Nb4 f2 Nb5 Rh2 Rc6 Rg2 Bd1 Rg4 Ng2 Rf4 Nd6 Ne2 Bb3 Nc3 Ne3 Na4 Nc8 Nc5 Rb1 Rg1 Rh1 f1N+ Kd1 Nh2+ Kd2 Rgf1 Nf5 Bf7 Rd6 Ng6 Ba4 Nf8 Rb3 Bh5 Ra3 Bg6 Rd5 Rc6 Qe1 Re6 Nfd6 Nf3+ Kd1 d2 Re5 Qb3+ Ke2 d3+ Ke3 d1B Bd2 Qc3 Rh2 Bc2 Rh1 Ne4 Ra5 Bb1 Ra6 Qc7 Bd7 Qc4 R3a5 Rg1 Ba4 Nc5+ Kf2 Rf1+ Kg3 Rf5 Bf4 d2 Kg4 Nd4 Bh6 d1N Bd2 Nc3 Bc2 R5f3 Ba4 Bgc2+ Kh5 N3e4 Kh6 Rf4 Qb7 Nf3 Qc7 Nb3 Bf2 Nbc5 Qc6 Nc3 Qb5 Bg6 Qb6 N3e4 Bc3+
1bb5/1N1r2Bb/5b2/1rnQR2b/1k1NpnQR/6RP/N1bK2Q1/q3nB1q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 a4 b5 c4 e5 f4 Ke7 h3 Kd6 f6 Kc5 f7 d5 f5 g5 f6 b3 a5 b2 a6 b4 a7 b3 Bd2 d3 Ra6 d4 Bf4 d2+ Ke2 d3+ Ke3 g3 Ra4 g4 Ra3 g2 Bg3 Nd7 Ra4 Bd6 f8R Rh7 f7 Ngf6 Qe1 d1Q Bf4 g3 Rb4 d2 Bd3 Rb8 a8Q Qa5 Re8 Rb5 f8N Qa1 Nc3 b1B Bh6 b2 Bf1 Nh5 Nf3 g1N Nd4 g2 Na2 Bc2 Qe2 b1B Bg7 Nf3 Rg1 Ne1 Qb7 Nf4 Qd5+ Kb6 c5+ Ka5 c6 Bb8 c7 Nc5 Qg4 Qc1 Qe2 d1B+ Qd2 Bdg4 Nfe6 Bh5 Nd8 Qd1 Qf2 Qf3+ Kd2 Qe4 Rh1 g1B Qg2 Bf2 Re7 Bh4 Rg1 Bf6 Nb7+ Kb6 Qh2 Qh1 Rg3 Ka6 Re8 Kb6 Qhg2 Ka6 Bh6 Rd7 Bg7 Kb6 Nd6 Ka5 Re7 Ba6 c8Q Bh7 Qcg8 Bbc2 Qge6 Bb7 Qg4 Bc8 Rc4 Rb4 Nb7+ Ka4 Rcc3 Rb5 Rcf3 e4 Re5 Nfd3 Rf4 Ka3 Q4f3 Ka4 Rh4 Nf4 Nc3+ Ka3 Qg4 Kb4 Na2+
1r1q1kr1/2B3N1/1b4n1/n2R1n1B/n1RPQQ2/3b1p2/1NRKn2r/Qb2rN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 h5 e4 f5 d4 c5 g4 a5 e5 f3 g5 c3 e6 a4 g6 h3 b6 c2 e7 c4 b7 h4 b5 h2 g7 h3 b6 a3 Qd3 f4 Bd2 c1N Qe4 f2+ Kd1 f3 Ne2 a2 Qf5 c3 Nf4 Nd3 Bg2 f1B Qe4 Nc6 b8R Na5 b7 Nc5 Nd3 Na4 Bf4 c2+ Kd2 c1N Nb2 Bd3 Bc7 Bf5 Rc8 Ne2 Rc1 h1R b8Q h2 Bh3 Re1 Rc5 h1N Rc4 Nhg3 Bg4 Rh2 Bh5+ Bg6 Qa7 Nf5 Qf4 Kf7 e8N Bc5 Qb7 Bb6 Qbe4 Rb8 Rc2 Qf6 Rd8 Rg1 Rd5 Qd8 Rc4 Ne7 Rc2 Nec6 Rc4 Ne5 g8Q+ Ke7 Ng7 Bh7 Qe6+ Kf8 Qc8 Ng6 Qa6 Qh4 Nc3 Qf6 Ncd1 Qd8 Rac1 a1R Ne3 Rb1 R1c3 Rbe1 Rc2 Bg8 Rd6 Ne5 Rd7 Nac6 Rb4 Nc5 Qa8 Ba2 Ne8 Rg8 Rd5 Bb1 Qa1 Na5 Ng7 Na4 Rbc4 Ng6 Nf1
rBB3r1/N5rb/1R1rn1Nn/1Bk2pbK/1n3P2/R1Q4b/nQqn4/2N4Q b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 Kd7 d4 Kd6 c4 a5 g4 h5 f4 e5 d5 h3 g5 h4 b6 a4 g6 b3 b7 b2 g7 e3 Kf3 e4+ Ke2 a3 Rh2 a2 Nc3 b1N Nb5+ Kc5 d6 Be7 d7 Nc6 b8N Bg5 Nc7 Nb4 Qc2 Nc3+ Ke1 e2 Kf2 e1N Bb2 Nh6 g8Q Nf3 Nd5 Nd2 Nc6 Qc7 Qh7 Rg8 d8Q f6 Rh1 h2 Nde7 h3 Kg3 e3 Qdd3 e2 Na7 e1N Ne2 Nef3 Nc1 Nd4 Ng6 Ne6 Ba3 Qc6 Qb2 Qa4 Rb1 a1R Qf3 Na2 Qfc3 Qc2 Be2 Nf5+ Kg4 Nh6+ Kh5 Rg7 Rg1 h1R Rg3 h2 Rf3 Rd1 Bf1 Kd6 c5+ Kd5 c6 h1B Re3 Be4 c7 Rb8 Bc4+ Kc5 Rh3 Bd7 Rg3 Rbg8 Bb5+ Nc4 c8B Rd6 Qf3 Bf5 Qh1 Bh3 Qh8 f5 Rb3 Be8 Qc3 Bf7 Bb2 Be8 Ra3 Bf7 Qce1 Nd2 Be5 Rgd8 Qg3 Bg8 Qb3 Bh7 Qb2 R6d7 Bc7 Rdg8 Bb8 Rd6 Ra6 Nc3 Rb6 Ra6 Ra1 Ra4 Ra3 Nca2 Nc6 Ra8 Na7 Rgd7 Qhf6 Rdg7 Qfc3+
2nbrR1N/1RQn1B2/n1Rn4/3p2k1/4r2r/1bbKB1PN/1bQb2B1/2q4Q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kf6 b4 e5 c4 a5 f5 h5 b6 e3+ Ke2 e4 g3 a4 b5 d3+ Ke1 h3 b7 h2 b6 a3 c5 d2+ Ke2 h4 c6 h3 c7 a2 Nf3 Na6 b8R Be7 b7 Rh4 Nd4 Kg5 Rg1 h1N f6 h2 f7 Nf6 f8Q Nf2 Ba3 h1N Qb3 d1R Nf5 Rd4 Nc3 d5 Bb4 Bd7 c8B Qc7 Bh3 Ba4 Bg2 Bd8 Rac1 a1B Nh6 Bb2 Bc5 Nd7 Qc2 Bb3 Qh8 Qc6 Rgf1 Rc4 Ke1 e2 Kd2 e1B+ Ke3 Ra4 Ne2 Bec3 Nf4 Qc7 Ke2 e3 Qhh7 Ne4 Kd3 e2 Be3 e1B Nf7+ Kg4 Rf3 Bed2 Nh8 Kg5 Rf2 Nd6 Rf3 Nf8 Be6 Re4 Bf7 Nd7 Rf2 Be7 Rf8 Re8 b8Q Bd8 Rb1 Qc6 Qc7 Nc8 Rff1 Qc5 Rfc1 Nf2+ Ke2 Rg4 Qh2 Rh4 Qh1 Ng4 Kd3 Nh6 Bg1 Nf5 Be3 Ba3 Rb2 Nfd6 Rbb1 Ba2 Rb7 Bb3 Ra1 Bac1 Ra5 Qa3 Rc5 B1b2 Rc4 Qa1 Rc6 Qc1 Nh3+
2nB1R2/1bb4N/1rQ1k2b/2p2R1N/2nbq1Qn/3NRB2/Q1Kb2P1/b3r1q1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kd7 Kd2 a5 b4 e5 f4 c5 d5 h5 d6 e3+ Kc2 c3 b6 e2 f5 e1B b7 a4 f6 a3 f7 e4 b5 e3 b6 a2 Rh2 h3 Bc4 e2 Ba6 h4 Bd3 Ne7 Rh1 h2 Bh7 h3 Na3 Bh6 f8Q Ra6 Qg8 Bg3 Nf3 e1B Nc4 Nbc6 b8R Na5 b7 Qe8 Ng5 Rb6 Be4 Bd2 Nb2 Nc4 Re1 h1N Bf3 h2 Re3 Bf2 Ra8 Ng3 b8Q h1Q Nd3 Bb7 Nh7 Qg1 Qe2 Bf4 Qg4+ Ngf5 Rb1 Be5 Qc7+ Ke6 d7 a1B Rb8 Qg6 Rf8 Nc8 Bb2 Rg8 Rf1 Rg7 Bc1 Re7 Qc6+ N4d6 Re4 Bd4 Rf2 Bh6 Bg5 Re8 Bd8 Re7 Qh5 Nh4 Re3 Qe4 Rf5 Re8 Qg4 Bg3 Rf1 Re7 Kd1 c2+ Kd2 c1B+ Kc2 Rf7 Qd2 Rg7 Qa5 Re7 Qa2+ Rb3 Rf2 Bd2 Rf8+ Nf5 Bb6 Re8 Be2 Ke7 d8N Nh4 Ref3 Nc4 Ne6 Qe5 Ng7 Qf4 Bc7 Rb6 Nh5 Bh2 Rh3 Qe3 R2f5 Bhe5 Qcg6 Kd7 Bd8 Bc7 Bd1 Qf3 Qf6 Re1 Rg3 Qe4 Re3 Rb3 Bf3 Rb6 Qf7+ Kd6 Qfg6+ Kd7 Qe8+ Kd6 Qb5 Ke6 Qc6+
B1N1Qq1k/Bq1nn1rn/1R4q1/RKp1P3/3rQ3/1b3q1q/1Q1bR2B/4q1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 h5 e4 c5 Ke2 f5 g4 Kf7 d4 Kg7 b6 a5 b7 h3 g5 h2 g6 h4 e5 f3+ Kd2 f2 Kc3 a4 d5 a3 d6 a2 b5 h3 d7 f4 b6 f3 Qb3 Ra4 Be3 Nf6 Ne2 Rh7 Qb5 Kh8 Ng1 Rg7 Qa5 Nh7 Bg2 f1Q Bf4 f2 Qa7 Qe1+ Nd2 f1N Bf3 Ng3 Qa8 Nf5 Bd5 Qc7 d8Q Nd7 b8B Qb7 Qe8 Ne7 Ba7 Qf2 Rb1 a1Q+ Rb2 Qd1 Ne4 Qg4 Re2 Qf5 Nd6 Qe1+ Kb2 c3+ Kb3 Rd4 Bg2 Qf3 b7 Qef2 b8Q c2+ Re3 c1Q Qe4 Ba6 Nc8 Bc4+ Ka4 Qce1 Qb2 Bb3+ Kb5 Qff1+ Ne2 Qf6 Rg1 h1Q Bh2 Qf1f2 Rf1 Q2g3 Ng1 Qgg4 Re2 Qh5 Bf4 h2 Rff2 Qfh3 Bg3 Qf7 Rf6 Q5g4 Rb6 Qff2 Bf1 Qhf3 Bg2 h1Q Bh2 Qe6 Qe3 Qb7 Bc6 Q1f3 Qe4 Qg8 Bd5 Rf7 Bc6 Bh6 Bd5 Q2g3 Bc6 Qf8 g7+ Kg8 Bd5 Qg6 Bc6 Bd2 Bd5 Nhf6 Bc6 Kh7 g8R Rg7 Bd5 Rf7 Rg7+ Kh8 Bc6 Nh7 Bd5 Qc7 Ba8 Qb7 Qbc2 Qc7 Qf5 Ng8 Qb2 Nb8 Qe4 Re7 Rf7 Red7 Rff6 Rg7 Ra6 Qb7+ Rfb6 Nd7 Ra2 Ne7 Ra5
B2qRn2/2r5/N1P4Q/4BnBR/1p2R3/rb1nb2K/n1r2QNQ/1b1b1kb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 a4 Kf7 f4 Kf6 Kf2 h5 c4 e5 g4 b5 Kg2 d5 a5 e4 a6 d3 c5 d2 a7 b3 c6 h3+ Kh2 b4 Ba6 d4 Qf3 d1N Ba3 e3 Bb7 h4 Ra2 e2 Qc3 e1B Qc2 b2 Nd2 b1B Qc1 d3 Ngf3 Bf2 Ne1 Nc3 Nb3 d2 Bb2 d1B Nc5 Rh7 Ng2 Ne7 Na6 Bh6 Ba1 Bb6 Re2 Nd7 Re4 Nf8 Qc2 Rg7 Qf2 Be6 Bb2 Beb3 g5+ Kf7 g6+ Kf6 Bc1 Na2 Bd2 Rh7 g7 Bg5 g8R Rf7 Kg1 h2+ Kf1 h3 Be3 Rc8 a8Q Rc7 Qb8 Rg7 Ba8 Bh6 Bd2 Rg3 Rh8 Rc3 Be3 Bg5 Rh5 Rc2 Rg1 h1R Bd2 Kf7 f6 Kg6 f7 h2 f5+ Kf6 Bc1 Bge3 Bd2 Nc8 Re8 Ne7 Bc1 Ke5 f6+ Kd4 Bb2+ Kd3 Be5 Nd7 f8B Nf5 Bh6 Nf8 f7 Bbc5 Nh4 Ba7 Kg2 Bac5 Re1 Rf1 Qa7 h1N Qb8 Rg1+ Kh2 Rg3 Bg5 Bcd4 Ng2 Rf3 Qg3 Nf2 Qa7 Kd2 Qc5 Nd3 Kh3 Nh6 Qd6 Nf5 Qh6 Ba7 Nf4 Bg1 Re4 Bae3 Ng2 Ke2 Be7 Nd7 f8Q Kf1 Qff6 Nf8 Qh4 Rff2 Qh2 Rc3 Bg5 Rfc2 Qf6 Bc4 Qh6 Ra3 Q4g3 Bb3 Qf2+
rB1b3K/7n/bp1QRrNk/2R1B2n/5Pqb/b1R5/1br1nQ2/N2B1Q1r b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 h5 f4 h3 d4 h2 a4 b6 g4 e3 a5 h4 d6 c4 d7 h3 a6 b3 g5 b2 d5 c3 a7 c2 d6 e2 Ra3 e1B Be2 Bh4 Nd2 b1R Ngf3 Ba6 Qf1 Nf6 Rc3 Nh7 Bd1 Rb2 Nb3 Qc8 d8B Qg4 d7 e6 Na1 Ba3 Rc5 Rf8 Bc7 Rf6 d8Q Kh5 g6 Kh6 Bd2 c1B g7 Rc2 g8R Bcb2+ Bc3 Bg5 Rg1 h1R Nh4 h2 Ng6 Bh4 Qd6 Nc6+ Ke4 e5 Re8 Nd4 Bb8 Ne2 Re6 Bg5 Rg3 Bh4 Kd5 e4 Ke5 e3 Bd4 Ng1 Rh3 e2 Rhc3 e1B Bc7 Rh8 a8Q Ne2 Qaf3 Ra8 Bb8 Bg5 Q3g2 Beh4 Qgf2 Rf7 Kd5 Bd8 Be5 Rf5 Kc6 Rf6 Kd7 Rg1 Ke8 h1N Q2g2 Nhg3 Qff2 Rh1 Qgf1 Bc7 Ke7 Nh5 Ke8 Ng5 Ke7 Bd8+ Ke8 Nf7 Kf8 Ng5+ Kg8 Nh7 Kh8
1rb3n1/q1Nk2Pb/r1n1n1n1/8/bQRbn2R/KRNB2r1/3B1p2/3Q2BN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 a5 c4 h5 Kc2 a4 Kb2 f3 g4 d3 e5 a3+ Ka2 f4 g5 d2 g6 d4 g7 d3 b6 h3 c5 f2 c6 h4 b5 f3 e6 h2 c7 h3 b7 Qd4 b6 Nc6 b8Q Bc5 b7 Ra6 e7 Kd7 Qa4 d1N e8N d2 Bb2 Nc3+ Kb3 a2 Ba3 d1B+ Kb2 Nd5+ Nc3 Nde7 Qb3 Ng6 Bb5 f1B Rc1 a1N Rb1 f2 Bd3 Nc2 Bb4 Bg2 Qa4 Be4 Ne2 Qe3 Ka2 Nd4 Ka3 Ne6 Ng3 Bd4 Ba5 Bf5 Qb4 Ba4 Rb3 Be4 Qa7 Bf5 Qac5 Be4 Qh5 Bf5 b8B Be4 Rg1 h1R Qd1 h2 Rf1 Rg1 Nh1 Rg3 Rg1 Rgh3 Rg4 Rg3 Rf4 Bf6 Rh4 Qa7 Bb6 Be5 Be3 Bd4 Bc1 Nge5 Bg5 Bh7 Bd2 Ng6 Bf4 Bb7 c8R Rf3 Qc5 Na5 Qc4 Nf6 Rc5 Nc6 Ng3 h1N Qb4 Rf8 Bbc7 Ng8 Bd2 Re3 Be5 Ref3 Nc7 Rb8 Rc4 Bc8 Nf5 Rh3 Bh2 Ng3 Bg1 Ne4 Ng3 Rh1 Rh6 Rh3 Nh1 Rg3 Rh4
rb3q2/rP4QQ/r1n1Q1q1/B4rRR/3N1r1p/4B2B/KN1rkn2/2qbN3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 Kc2 h5 Kb3 f5 g5 a5 e3 d5 g6 h3 c5 d3 b6 f3 c6 f4 b5 d2 c7 h4 b7 a4+ Kb2 d4 b6 a3+ Kb3 h2 g7 a2 Na3 f2 Qh5 d1R Bh3 Kd3 e4 f1R e5 f3 e6 f2 e7 Rd2 e8Q Nf6 g8N Ra6 Qee5 Nc6 b8B Bd6 b7 Ne4 Qe7 Qf8 Qg7 Bg4 Nf3 Ke2 c8Q d3 Rg1 h1Q Ne7 Qg2 Qe6 Bf4 Rb1 a1R Nf5 Ra7 Nc4 R1a6 Bd6 Qg3 Be7 Bb8 Qhh7 Bh5 Bea3 Qg6 Nb2 Rc2 Bd6 d2 Bc7 d1Q Nh6 Qfd8 Be5 Bd6 Nc4 Kd3 Bg5 Qc1 Be3 Rd2 Nf5 Qe7 Rb2 Rha8 Bc3 Bb8 N5d4 Qf8 Ba5 Bg4 Ka2 Bh5 Nh2 Be2 Nhf3 Bd1 Nc2 Ke2 Rb5 Re1 Re5 f1R Rh5 Rf2 Rg3 Ref1 Ne1 Rf5 Rgg5 R1f4 Nb2 Nf2 Nd4+
1qN2QBr/1P6/bq1R1pN1/2b1q1r1/N3RB1B/q2q1b1k/3qnQn1/3R1K2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 Ke7 g4 Kf6 e4 Kg5 b4 h5 c5 a5 e5 d5 b6 h3 b5 Kh4 b7 h2 e6 d3 e7 f3 e8Q a4 g5 d4 b6 f2+ Kd2 a3 g6 a2 g7 f6 c6 Ne7 g8N Nd5 c7 Nf4 Nc3 Ra5 Qf3 Nc6 b8B Ba6 c8R Ng2 Be2 f1Q b7 Qb6 Nb1 Rg5 Qf5 Qf3 Qc5 Bd6 Kd1 d2 Qf7 Qa3 Re8 Kg3 Re4 h4 Qe7 h3 Bc4 Rg6 Ke2 d3+ Kf1 Nd4 Nc3 Ne2 Na4 Rg7 Rb1 a1Q Nf3 Rg5 Ne5 Q1c3 Qd4 Bc5 Qf8 Qca1 Rg1 h1Q Ne7 h2 Bg8 Kh3 Kf2 d1Q N5g6 d2 Nc8 Qdb3 Bg3 d1Q Qe3 Qbc3 Rbb4 Qcd3 Rbd4 Q1b2 Qf4 Qbc3 Be3 Q1d2 Bh4 Qcb2 Rd5 Qbd4 Rd8 Qdd6 Rc1 Qb8 Rd6 Qhd1 Ra1 Q1c2 Re1 Qcc3 Kf1 Qe5 Ra1 h1B Rd1 Ne1 Qf2 Bf3 Bf4 Ng2 Rdd4 Bd6 Rd5 Bc5 Rd6
2q5/b3N1Q1/1N1q1Bn1/N1rBR3/1kn1K1b1/1r2R3/nRB1p1Pn/1r2nQr1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 f4 Kd7 c4 Kd6 b4 h5 b6 e5 f5 a5 b7 d3 Ke3 d4+ Kf2 h3 f6 e3+ Kf3 d2 b5 Kc5 b6 d3 f7 e2 Ke4 e1N Nf3 a4 Ng5 a3 Ra2 h2 Nc3 h4 Rg1 h1R Rb2 h3 Qb3 d1N Qc2 h2 Bd2 a2 Qc1 a1R Nf3 Na6 b8Q Ne3 b7 Rb1 Nd5 Bg4 Ne7 Qc8 Nd4 Rh5 Ndc6 Nb4 Bc3 d2 Bd3 d1Q Na5 Na2 Bc2 Qd6 Rf1 Rg5 Rf5 Rg1 Qd1 Bh6 f8R h1N Re8 Ra6 Qf3 Rb6 Qf1 Rb3 Bd4+ Kb4 c5 Bf8 c6 Nc4 Qa7 Bg7 b8N Bh6 Ng6 Ne7 c7 Rh5 Nd7 Be3 Nb6 Rg5 Nf4 Ng6 Nfd5+ Ka3 Rf3 Bh3 Na4 Rh5 Bc3 Bf2 Qb7 Ba7 Nab6 Nd2+ Ke3 e4 Kd4 e3 Rg3 e2 Rge3 Nc4 Ke4 Be6 Bf6 Bd7 Nb4 Rb5 Re5 Rc5 Nbc6 Be6 Nd4 Kb4 Nf5 Qh8 c8B Qhd8 Bd7 Qc8 Bc6 Bd7 Bd5 Nf2+ Kd4 Ng4 Ke4 Nh2 Qc7 Be6 Qg7 Bd7 Ne7 Be6 Bd1 Bg4 Bc2
r3N1Rk/2b1B2b/1N5R/r4Br1/1nq1rnQQ/3b3p/P1qr3Q/KN3bB1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 g4 f5 d4 Kf7 Kd2 Kg7 Kc2 c5 Kb2 b5 e4 h5 g5 c4 e5 f3 e6 c3+ Kc2 b3+ Kd3 f4 d6 b2 Kc2 b4 d5 b3+ Kd3 c2 Kc3 f2 d7 f3 g6 h3 e7 h4 e8Q h2 d6 h3 Na3 b1Q Bg5 c1R+ Qc2 b2 Qe4 Qc7+ Nc4 Ba6 d8B Nf6 d7 Nh5 Ne2 Rg8 Qg4 Re1 Bde7 Nf4 d8Q Kh8 Rg1 Nc6 Nb6 h1R Bg2 Qd1 Rc1 b1B Kb2 f1B Ka1 f2 Be4 Rh2 Bf5 Bd3 Nc3 Re4 Qb2 Bbc2 Nb1+ Rg7 Bgf6 Nb4 Bd4 Qc4 Be3 Ba4 Rc3 Qc2 Ra3 Be8 Ra6 Bf7 Qdd4 Bg8 Qf6 Bh7 Qfh4 Bfe2 Rg2 f1R Bg1 Re1 Qe5 Bf1 Rg3 Rd2 Rg2 Nh5 Qh2 Re5 Rg3 Ra5 Rg2 Re4 Rg3 Rf7 Rg2 Nf4 g7+ Kg8 Rg3 Rf6 Rg2 Rg6 Rg3 Rg5 Rg2 Kf7 g8N Kg7 Nf6 Kh8 Ne8 Bh6 Nd7 Bf8 Rh6 Bg7+ Bd4 Be5 Nb6 Kg8 Rg3 Bc7 Bg1 Kh8 Qd1 Rh5 Rg7 Rg5 Qdg4 Ne6 Rgg6 Nf4 Rg8+
1rqr1b2/6NR/k1n3NK/1RrBq2Q/2nQBR2/B2Ppq1r/q2Nq3/3b4 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 Kb6 g4 e5+ Kh5 a5 b4 c3 f4 c2 g5 h3 d3 e3 g6 c4 f5 e4 g7 h2 f6 a4 f7 a3 Ne2 a2 Qd2 c3 Bg2 Nc6 Qe1 Nh6 g8B Qf6 Bd2 c1R Ng1 e2 Qd1 e1Q Ne2 c2 Ng3 e3 Nf5 Ng4 Ng7 Rb8 Be4 Nge5 Qf3 Qe7 Kh6 Qe2 Qh5 Nc4 Be1 Qc5 Nd2 Qe5 Rb1 Kb7 b6 a1Q b5 Bg4 Rb4 Qa2 Bh4 Bf3 Be7 Bg4 Ra4 Rd8 Ba3 Rb8 Rf1 h1Q Rf4 Qh3 Rb4 Rh1 Ra4 c1R Ra5 Qhf3 Ra4 Rh3 Ra7+ Kc8 b7+ Kc7 Ra4 Kb6 Rb4 Ka5 b6 Ka6 Rb5 Rd8 b8Q Rc3 Rf6 Qff5 b7 Qc8 Qd6 Rc2 b8R Rc1 Rf5 Bf3 Kg5 Rc3 Qh4 h5 R8b7 Rc2 Qg4 h4 Qd4 Rh7 Nb1 Nb2 Re7 Q2h2 Rb4 Rc5 Kg6 Nc4 Nh5 Bh6 f8N Bd1 Rb8 Rf3 Rf6 h3 Rf4 Qhe2 Bgd5 h2 Nd2 h1Q Rb5 Rh3 Qf5 Bg7 Kg5 Qhf3 Ng6 Bf8 Rc7 Rg7 Kh6 Qb7 Rf7 Rb8 Re7 Qc8 Rd7 Bd6 Rdb7 Rg8 Rh7 Rd8 Qg5 Be7 Qh4 Bd6 Ng7 Bf8 Qh5
R2Q1Qqr/nBr2R1R/7r/2B5/kNNbnq2/1p4q1/bN1r1P2/2KB1qq1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kd7 a4 b5 d4 c5 Kd2 h5 g5 e5 a5 h3 a6 b3 d6 Kc6 a7 b2 g6 b4 g7 h2 d7 e3+ Kc2 e4 Ra4 c4 d5+ Kb5 d6 h4 Qd4 h3 Nd2 b1Q+ Kd1 e2+ Ke1 c3 Nb3 c2 Kd2 e3+ Kd3 e1Q Qe4 e2 Qg2 Nf6 g8B Bg7 Na5 Ne4 Bb3 Bd4 Be3 Qec1 Nf3 e1Q Qg7 Qg8 d8N Nc6 Bg2 Qg1 Nc4 Be6 d7 Rb8 a8R Na7 Nc6 Rd8 Qf8 Qa3 Qe8 Qbc1 Ne1 Bd5 Qf8 Bf7 Bg5 Qf4 Be7 c1R Bc5 Be6 Ke2 Bd5 Bd1 Qag3 Nd3 Rc3 Nb6 Ba2 Nc4 b3 Ncb4 Rh6 Ra6 Rc1 Rf6 Ka4 Rf7 Rc3 Bf1 Rc2+ Ke1 Rc8 d8Q Rc7 Bh5 Rh8 Kd1 Rd2+ Kc1 Rh6 Bd1 Rh8 Bfe2 Qf1 Rg1 h1Q Bf3 h2 Rg2 Qhg1 Rh7 Nf6 Bb7 h1R Rf7 R1h4 Rh2 Ne4 Rh1 R4h6 Rh5 Re6 Rhh7 Rh6 Ndb2+
N2R4/2K2n1N/3R1q2/1bbqb1R1/Q1Q2Qp1/B2n2PN/b2nr3/n1bk2Br b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Nd2 b5 axb5 h5 Bh3 h4 Bg2 h3 Nb1 hxg2 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 g5 c4 d5 h4 f5 e4+ f3 b6 a5 h5 f4 b5 a4 h6 a3 h7 d3 b7 d2 b6 d4 c5 a2 c6 d3 c7 Bc5 Rh5 Nh6 Qf1 d1Q Rh3 f2 Nd2 f3 Ba3 Na6 b8Q Nb4 b7 Be6 c8Q Nc2 Qe2 f1N Qe3 f2 Ndf3 Nd2 Rh5 f1B Nh3 g1B Qd4 Be3 Qa4 Ra5 Rb1 Na1 Rb6 Rb5 Qd6 Rb2 b8B Qf8 Ba7 Nf7+ Kf6 Qh6+ Ke7 Bf4 Qg8 Qf6+ Ke8 Qb3 e5 Qd5 Qb8 Be2 Rd6 Rc2 Nh4 Bf1 Ng6 Kf3 Nf8 g4 Rg5 Ke2 Qbb4 Bfe3 Qf4 Kd1 Bb6 Ne4 Ba7 Bc1 Bb6 d2 Ba7 Bc8 e6 Bc4 e7 B8a6 Kd7 Bab5+ Kc8 Bb4 Qg6 Ke2 e8N d1N Qff5 Ne5 Bg1 Nb2 Nf2 Bc5 Qf4 Ke1 Nc7 Re2 Qe8 Nbd3 Na8 Nd2 Kc7 Bb3 Nh3 Kd1 Qe6 Qe4 Qec4 Qd5 Nb6 Nc2 Na8 a1B Qcb4 Ba2 Qbc4 Rg8 h8R Nf7 Qfe4 Bab2 Nf4 Be5 Qf5 Rg6 Nh7 Rh6 Rd8 Rhh2 Nh3 Rh1 Qa5 Na1 Qff4 Qg2 Qa6 Qd5 Qaa4+
1n1bn3/bQR3qR/2nr1N2/2Q1r2B/b3pnb1/N5KB/1RPB4/2b1kqQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 Kf2 Kg6 b4 Kf5 g3 h5 b6 a5 b5 e5 b7 d5 b6 h3 Be2 h2 Qf1 e3+ Kg2 Ke4 f5 d3 g4 h4 f6 d4 g5 h3+ Kg3 d2 f7 d1N g6 d3 g7 a4 Bh5 d2 Qe2 a3 Qf1 a2 Ne2 Nf6 g8B Ne8 Qf6 Nc3 Qe6 d1N Bb2 Ra5 Kg4 Nb5 Rf1 h1Q Kg3 h2 Re1 Qc7 Bc1 Ndc3 Qh6 Qf1 Rd1 h1B Rd3 Nd5 Bb2 Bg4 Na3 Be7 f8Q Nd4 Rc1 a1B Be6 Ndc6 Rc3 Bd8 Qg5 Nf4 Qc5 Rh6 Rb1 Qg7 Bc1 Bhf3 Rb2 Rb5 Bc8 Rd6 Bd2 Bd7 Bc1 Bfg4 Bd2 Nh3 Nf4 e2 Nd5 Nf4 Be3 e1B+ Kh2 Kf3 Nf6 Na6 b8R Ke2 b7 Bd2 Kg3 e4 Ra8 Nab8 Ra7 Bc1 Qg6 Na6 b8Q Ke1 Rc7 Ra5 Qb7 Nab8 Rcb3 Ne7 Rd3 Ba4 Rd2 Nec6 Rh2 Bd1 Bh3 Bg4 Rb3 Bd4 Rb2 Be2 Kh4 Rb5 Qg1 Bg4 Kg3 Ra5 Qca7 Rad5 Qc5 Re5 Qcb4+ Bd2 Bg6 Bf5 Bg2 Nd5 Rh7 Ba7 Qc5 Bc1 Bh3 Bg4 Bh5 Nf4 Bd2+
N3B1Bq/2Nq1R2/nRQ2rr1/2n3b1/1B2pr1N/1q1rP3/5kb1/KQ2Rq1r b - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 Kf7 f4 Ke6 b4 Kd5 c4+ Ke4 Kc2 g5 Kb2 h5 c5 a5 c6 e5 c7 d5 f5 h2 e3 h4 f6 g4 b6 h3 b5 g3 b7 a4 b6 d3 f7 a3+ Ka2 g2 Qa4+ d4 Nf3 g1R Qc2 Rg6 Qc4 d2 Rg1 d1R Qb4 h1R Qc3 d3 Rg5 h2 Nh4 d2 Bc4 Bh3 c8B Bg2 B8e6 Qd7 Rf5 Bh6 f8N Na6 b8Q Nf6 b7 Bg5 Bb5 Rhh6 Bg8 Rdf1 Qcc7 d1Q Bd2 Rf4 Bb4 Q1d3 Ne6 Qf1 Qa7 Rd8 b8R Qfd1 Qab6 Qf1 Kb3 a2 Kb2 Qc4 Nc3+ Kd3 Ng7 e4 Nd5 Ke2 Ne8 Kf2 Qcc6 Qf1 Re1 a1Q+ Kb3 Qa5 Kb2 Qa4 Nec7 Qb3+ Ka1 Nc5 Qbb7 Ne8 Na8 Nc7 Rf7 N7a6 Ndc7 Rgf6 Qbb6 Rhg6 Re7 Qh3 Rf7 Rd3 Ba4 Qd7 Qbb5 Rg1 Rb6 h1Q Nf5 Qh8 Nh4 Rd4 Qd3 Rh1 Qb1 Rd3 Qd5 Qh3 Be8 Qd7 Qc6
R3b2K/1R1R3n/q2r1r2/1Q1B1N1b/nb1pN3/1nQ1Q2N/PB3b1n/1q1n1k2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 c4 b5 f4 d5+ Kd3 h5 g4 h3 c5 h4 c6 h2 c7 b3 Be2 h3 Qd2 b2 Bd1 b4 Qg2 b3 Nc3 b1Q+ Bc2 e4+ Ke2 b2 Kf2 d3 Kg3 d4 Bb3 e3 Bc4 d2 Qf2 d1N Be6 e2 Qe3 e1B+ Kf3 Bd7 c8Q Qb6 Bd5 Na6 Qc6+ Bd6 Qb5 Bb4 g5+ Kg7 Kg4 Be8 g6 Kh6 g7 Bf2 f6 Nc5 f7 Nf6+ Kf3 Kh5 g8N Kh4 f8R Nh7 f5 Na4 Kf4 Rd8 Ke5 Qa6 f6 Rd6 Ne7 Bh5 Rb8 Rf8 f7 Kg4 Ra8 Kh4 Qee2 Kg3 Ne4+ Kg2 Qd2 Rc8 f8Q Rcc6 Qfh6 Rf6 Qb8 Rcd6 Nf5 Kf1 Qhe3 Qc2 Bb3 b1N Qdc3 Nd2 Bd5 Nb3 Bb2 Qb1 Qb5+ Kg2 Nf3 Be8 Rf1 h1B Nfg5 h2 Re1 Bh5 Re2 Kf1 Nh3 B1f3 Rc2+ Be2 Rc1 h1N Rc2 Ng3 Rc1 Qd3 Rab1 Be8 Rc2 B2h5 Re2 Be1 Rg2 Ne2 Rg7 Ng1 Rd7 Nf3+ Kf4 Rf8 Ba3 Nc1 Qbc4 Nh2 Ke5 Bc5 Rbb7 Bb4 Qb5 Nb3 Bb2 Bf2 Kf4 Nf6 Kg5 Rf7 Kh6 Nh7+ Be6 Rf6+ Kg7 Nbc5 Kh8 Nb3 Qb6 Qc2 Bd5 Qb1 Qb5+
2n1Q1B1/bRBR4/b4K2/3BQNQ1/P5b1/1n1qq1pq/1bbq1NR1/2rk1r2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 d4 g5 e4 c5 h4 b5 h5 f5 h6 b3 h7 g3+ Kf3 c4 Nd2 g4+ Kg2 b4 Rb1 b2 Ndf3 c3 Qd3 b3 Nh4 c2 Nh3 f3+ Kg1 g2 Kh2 g1B+ Kg3 f2 Kf4 g3 Nf3 Nc6 Qd2 Nge7 Kg5 f4 Qe2 Bg7 Qd2 Rf8 h8Q Na5 Rh2 Bg4 Rg2 Rc8 Nh4 f3 Bc4 f1B Nf2 Rc5 Qc3 Nc8+ Kg6 Be5 Bf4 c1Q Qg8 Qe3 Nf5+ Kd7 d6 Kc6 Bf7 Ba6 d7 Rc4 d5+ Kc5 Qe1 Rc1 d6 Bh8 Qe2 Kb4 e5 Kc3 e6 Be5 Qb5 Kc2 e7 Bc3 e8B Bg7 Ra1 b1Q Qe5 b2 Bd5 Nb3 Bef7 Kd2 Qh8 Qd3 Bg8 b1B Qh6 Ke1 Qg5 Bc2 Rb1 Qa5 d8R Qad2 d7 Ke2 Qe4 Bb2 Bc7 Rf7 Qe5 Rf8 Ne4+ f2 Kg7 Ke1 Kg6 f1Q Nf2 Rf6+ Kg7 Rh6 Kf7 Rh1 Kf6 Ke2 Rf8 Ke1 d8Q Ke2 Qe8 Ke1 Ne4 Kd1 Rf7 Bf2 Rd7 Rg1 Rh2 Qh3 Rg2 Rf1 Ra1 Bg1 Ra3 Na1 Rb3 Bf2 Rb7 Nb3 Ned6 Qee1 Ne4 Ba7 Ke6 Qef2 Kf6 Qfe3 Nf2+
n3Nq1b/2Q3nR/bq5r/1rn2p1R/4qB2/1QK3nQ/1P1n3q/N1R2BBk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 c4 Ke5 e4 a5 g5 h5 c5 d5 b6 f5 b7 f3 g6 Kf4 g7 Kg3 c6 f2 c7 h3 e5 d3 e6 a4 e7 d4 e8R h4 Qc2 a3 Re7 a2 Qb3 h2 Qa3 h3 Re6 Na6 b8B Rh6 Re1 Nf6 g8Q+ Bg7 Qaf8 Nh5 Qgf7 Bh8 Qc4 Ng7 Qfb4 Qf8 Bg2 f1N+ Kd1 d2 Kc2 d3+ Kb3 d1Q+ Kc3 d2 Qbc5 Qh5 Qb3 d1Q Re7 Qd6 Be3 Nd2 Nf3 Qb6 Ne1 Qg4 Na3 Qe4 Rc1 a1N Ba7 Rb8 Bf1 Bb7 c8Q Nc7 Qc6 Ba6 Nc4 Na8 Nc2 Kf3 Q8b7 Kg3 Qa3 Nab3 Nd6 Nc5 Bf4+ Kf3 Ne8 Kf2 Rg1 h1N Rg5 h2 Na1 Ng3 Rh5 Kg1 Qcc7 h1Q Qd5 Qh2 Qdb3 Kh1 Rd7 Qbd6 Re7 Rb5 Rf7 Nd3 Bg1 Qb6 Re7 Nc5 Rf7 Rf6 Rd7 Nge6 Rdh7 Ng7 Qaa4 Rd6 Qd4 Rh6 Qd3 Qe2 Qf3+ Qg2 Qg4 Qe4 Qh3
qbB1k2n/1R2Q2n/5B2/n1P2qnB/2b1N3/Kp2q1R1/Qn1r2Q1/2rR2qN b - - 0 1 illegal: No possible last move
1BqrnnN1/5B2/2N2PQ1/q6B/pR1nQ3/kr1b2nn/2RN3K/2b1bb1R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 Ke7 g4 Kd6 Kg2 e3 g5 h3+ Kg3 d3 f5 a4 g6 h2 g7 e4 b6 e2 b5 Kc5 b7 Kb4 c5 e1Q+ Kh3 d5 b6 h4 c6 d4 c7 e3 Be2 d2 Bb5 d3 Bb2 e2 Bd4 Nf6 g8R Nbd7 b8N Ne8 b7 Bh6 f6 Nf8+ Nd7 Rb8 Qc2 d1B Rg2 d2 Qe4 Bc2 Nf3 d1N Nfd2 Bd3 Nc3 Ne3 Bc4 Nc2 Ba7 Nd4 Rb1+ Ka3 Nd5 Qc1 Ne7 e1B Bf7 Qc4 Nf3 Bc1 Ng8 Qb5 Rb4 Qa5 Nd2 Bf1 Rg1 h1N Kh2 h3 Ne5 Ng3 Nc6 Bf5 c8B Bh7 Bg4 Qc8 Bgh5 Bf5 Qc2 B5d3 Rf2 Nge2 Rh1 Ng1 Kg3 h2 Qc4 Nc2 Qe4 Nd4 Qg6 Nh3 Qe4 Ra8 b8Q Rh7 Qbf4 Rb8 Qfe3 Rh8 Qg6 Rb5 Qee4 Rb6 Rg1 h1N+ Kh2 Ng3 Bb8 Rb7 Rh1 Rb5 Rc4 Rb3 Rb4 Rh7 Be6 Rd7 Bf7 Rd5 Nf3 Rd7 Rc2 Rd8 Nd2
Q1RbR2N/1r2bbr1/b2q1p2/2qQ4/2n1Qr2/BB2PB1N/1k1n4/2NK2br b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 Ke7 b4 Kd6 c4 Ke5 b6 d5 b7 a5 b5 g5 b6 g3 c5 g2 h5 g4 h6 f3 h7 a4 c6 g3 c7 f2+ Kd2 a3 Qc2 d3 Qb2+ d4 Nh3 g1Q Kd1 g2 Be3 d2 Ng5 a2 Kc2 d1B+ Kc1 Nc6 b8Q Ba6 c8B+ Qd6 b7 Nf6 Rh6 Bb3 Bd2 Rg8 h8N Be7 Rh7 Ne4 Qc2 d3 Rh5 Kd4 Be6 Ne5 Nh3 Nc4 Kd1 Rg7 Qd8 Ra7 b8Q Rb7 Bb4 d2 Nc3 f6 Rb1 a1B Na2 Bc3 Nc1 Ba2 Rc5 Bb3 Ba3 Ba5 Bb4 Ba2 Qd7 Bad8 Rc8 Bb3 Qa8 Ba2 Ra1 Bb3 Ba3 Ba2 Qca4 Kc3 Bb4+ Kb2 e3 Bb3+ Ke2 d1R Ra3 Qc5 Qd5 Qh2 Ra1 g1B Bg2 Qf4 Bf3 f1R Qe8 Ned2 Qg6 Rf7 Qge4 Qfd6 Ra5 Rg7 Rb5 Ra7 Rbb8 Rb7 Bf7 Ba5 Re8 Bad8 Rc8 Ba2 Bg4 Rf4 Bf3 Bf2 Bg8 Rh1 Be6 Bg1 Kd1 Bc7 Bd7 Bcd8 Ba4 Bb1 Bb3 Bd3 Qee6 Bg6 Qee4 Bf7 Ba3+
b4QBn/n2rn3/2P3NB/1p1n2Q1/k1q1r1q1/1Br1n1r1/2RK3N/bRQ2N2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 h5 a4 e5 g4 d5 f4 Kd7 a5 Kc6 c5 b3 f6 e4 f5 e3 a6 e2 f7 Kb5 a7 b2 f6 d3 g5 d4 g6 h3 g7 h2 Nd2 b1N Qc2 h4 Ne4 d2+ Kf2 d1R Bd2 h3 Bb4 d3 Ke3 e1R+ Be2 Ne7 g8N Qd5 Ra3 Qc4 Qb2 d2 Qc1 Nbc6 Qc3 Bg7 f8Q Ng6 Rb3 Ka4 f7 b5 Qc2 Ba1 Ne7 Nc3 Qc1 Rg8 Ng3 Bb7 Nf3 Rc8 a8B Nh8 Qh6 Na7 Nf1 Rg3 f8Q Qg4 Rb1 Nd5+ Kd3 Rc6 Rg1 h1Q Ng6 h2 Rg2 Qg1 Qhf4 h1N Qg5 Q1d4+ Kc2 Qdf4 Bc4 Re4 N3h2 Rc7 Ba2 Rd7 c6 Rde1 Bc5 d1N Be3 Rc4+ Kd2 Rc3 Rf2 Qc4 Bf4 Re4 Re2 Ba6 Bb7 N1e3 Bc8 Bb7 Rf2 Ba8 Rg2 Rf7 Be6 Rd7 Bg8 Nf5 Qgf6 Nf2 Bh6 Nd1 Qg5 N1e3 Ke1 Rde7 Rc2 Rd7 Kd2 Nfe7 Bb3+
kb1rNR2/3n1q2/1P1r2b1/1K1b1Q1r/1B1r4/1rQ1RRB1/1bpQB1n1/q3N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 Ke2 Kc7 g4 Kb7 d4 f5 e5 a5 g5 h5 e6 h3 e7 h2 e8Q f3+ Kd2 f2 Kc3 f4 d5 f3 g6 h4 d6 h3 d7 a4 b6 a3 b5 a2 g7 Rh6 Qe6 Qc7 d8Q Qf7 Bd2 Ne7 g8R Nd7 Rg2 Ng6 Qde8 Bd6 Be3 Nh4 Bg5 Bb8 Be2 f1R Qed6 f2 Q6d2 Rd6 Q1c1 Rd1 Qf8 f1R Rf2 Ng2 Na3 Ra4 Rf4 Ka8 Be7 Rfe1 Rb1 a1Q+ Qcb2 Bb7 Nf3 Bd5 Rf1 h1R Rf2 Ref1 Ne1 h2 R2f3 Be4 Re3 Rf3 Rf6 Rh3 Rff3 Bg6 Qc8 Rh5 Rc1 Rf1 Bf8 h1B Rb1 Nf6 Qf5 Nd7 b7+ Ka7 Kc2 c3 Nc4 Rf2 Kb3 c2 Qbe5 c1B Qec3 Bb2 Be7 Rd4 Bd6 Ra6 Bf8 Re6 Nd6 c4+ Kb4 Rf1 Ne8 Red6 Rg3 Rff4 Rgf3 Rfh4 Rc1 Rh3 Rb1 Bc7 b8B+ Ka8 b6 Rg3 Qb3 c3+ Kb5 c2 Rc1 Rf6 Bb4 Rfd6 Qdc3 R1d3 Qd2 Rgh3 Qc4 Rb3 Qcd3 Rh8 Q3c3 R3h5 Nf6 Rd8 Ne8 Rc6 Rb1 Bh2 Bg3 Rf6 Bf2 Bb8 Bg3 Rfd6 Nd3 Qh7 Rbf1 Qf7 Ne1 Nf4 R3f2 Bd5 Rff3 Ng2 Rh1 Rg5 Rh8 Rh5 Rf8
1NQB4/3NRrNp/R1B2rrk/qn1Q1q2/7K/1brPq3/1b3nrB/4q1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 a5 g4 f5 e4 Kf7 b4 Kg7 e5 c5 d3 h3 e6 a4 b6 c3 g5 c2 b7 a3 e7 h2 e8Q f3 Kg3 f2 b5 a2 b6 c4 g6 c3 Kh3 f4+ Qe6 f3 Kg4 Nh6+ Kg3 Qd7 Bh3 f1R Qde1 f2 Bg5 c1Q Bd8 c2 Q6e4 Rg8 Qf3 Ba3 Nd2 Na6 b8B Bb2 b7 Nc7 Qe6 Ng4 Kh4 Nb5 Nc4 Ra6 Ne2 Kh6 Nb6 Qe3 Nf4 c1R Nh5 Rc3 Bg2 Qd5 Qef5 Be6 g7 Qde5 Bbc7 Bb3 b8N Rg1 Qd7 f1R Qc8 Rf8 N6d7 Rg6 Qc6 R1f6 g8R Qf5 Rg7 Nf2 Re7 R8f7 Bd5 R1g5 Ng7 Rg2 Rhe1 h1Q+ Bh2 Qf1 Qc4 Qfe2 Bc6 Qd1 Rg1 Qde1 Rc1 a1Q Qd5 Qaa7 Ra1 Qc7 Ra7 Qa5 Ra6
1RRnnn2/2B1q2p/2Bb2R1/b2qB1Q1/6NP/1Nnk3r/4rnQ1/b4KQb b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 f4 Kd7 d4 Kd6 h4 Kd5 f5 a5 f6 g5 c3 e5 b6 a4 f7 e3 b7 Ke4 c4 g3 c5 g2 c6 e2 d5 b3 d6 g4 d7 a3 c7 b2 Ra2 g3 Nh3 g1N Bd2 g2 Ra1 a2 Nc3+ Kd3 Nb5 b1N Nd4 e4 Qa4 Nc6 b8R Bd6 f8Q Bb7 c8Q Nc3 Nb3 Nf6 Ng5 Nf3+ Kf2 g1N Rc1 a1B Be1 Nfd4 Qa5 Ne8 Nf3 Ne6 Qg7 Nf8 Qag5 Ra3 Nh2 e3+ Kg2 Ba8 Qb7 Nh3 Ng4 Nf2 Rg1 Qe7 Rc2 Nd8 Bd2 Rg8 Bc1 Qf7 Bb2 Qf5 Q7g6 Rg7 Qf3 Re7 Qg8 Qd5 Q8g7 Nb7 d8B Re4 Bc7 Nd8 Rh1 Bb7 Kg1 Bc6 Bg2 e1B Kf1 Re7 Qg3 Bd2 Bf3 Bb7 Rg1 e2+ Kg2 e1Q Rc1 Na2 Be5 Ba5 Rc2 Qe3 Kf1 Nc3 Qg2 Qec5 Bh2 Re2 Be5 Qe6 Qg8 Qe7 Bc6 Qd5 Rc8 Ncd1 Rc4 Nc3 Rb4 Ra4 Rb5 Rae4 Q8g7 R4e3 Qg8 Ba8 Rbb8 Rh3 Qh1 Bab4 Qe3+ Kc2 Bb5 Nfd1 Nf6 Qde6 Qef3 Bd5 Bc6 Nf2 Rg4 Ba5 Qg1 Q6f7 Rg5 Be4 Ng4 Qd5 Qfh1 Bf3 Qhh2 Bh1 Qhg2 Kd3 Qg7 Ra2 Qf6 Rd2 Rg6 Re2 Qg5
4B1q1/nn4pN/1b2n1nk/q4r1r/1rQ3N1/1B2R1Kb/1P1r3R/1QB1N1Rr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 h4 d5 e4 f5 c4 Kf7 h5 f3 e5 d3 c5 g3+ Ke1 d4 h6 Kg6 b6 a4 c6 f4 c7 a3 b7 a2 h7 f2+ Kd2 f3 e6 g2 e7 Nc6 e8N Rb8 Rh4 Nge7 Qe1 Na7 Ne2 g1N Nf6 Bh3 c8B Qa5+ Kd1 d2 Nec3 Ne2 Na3 Nf4 Bg4 Ne6 Be2 f1Q Bc4 f2 Bb3 Qc4 Bh5+ Kh6 Ncd5 f1R Nc2 Ng6 Re4 Bc5 Re3 Rf5 Qf1 Bb6 Ne1 Qc8 Ke2 d1R Qg1 Qg8 Ng4+ Kg5 Rb1 a1N Ndf6 Rd3 Bc2 Nb3 Bd1 Rb5 Kf2 Nbc5 Bb3 Rd2+ Kg3 d3 Qh1 Rf8 b8Q Rb4 Qc8 Nb7 Qc4 Rf7 Ne8 Rf5 Nef6 Rdf2 Ra1 d2 Qhe4 d1R Qb1 Ngf8 Be8 Rfd2 Ng2 Rh1 Ne1 Ng6 Bd1 Qf7 Bb3 Rf8 h8R Qg8 Bd7 Rd8 Be8 R8d5 Rh6 Bg2 Rh2 Bh3 Nf2 Kh6 Nh7 Rd6 Bd7 R6d4 Be8 Rh4 Ng4+ Kh5 Nc2 Rc5 Qa2 Rf2 Bd2 Rcf5 Rg1 Re2 Bc1 Rd2 Nf2 Kh6 Ne1 Rhh5 Qa1 Rd6 Qb1 Rd2 Ng4+
3r1Q2/1q2QP1r/BRpBRn2/7b/1QNrbnbr/7R/3b2BK/qb2Nk2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 a4 Kf6 g4 b5 f4 e5 Kf2 h5 Kg2 c6 d6 b3 d5 h3+ Kg3 h2 f5 e3 d7 Kg5 a5 b4 a6 h4+ Kg2 Kf4 d6 b2 f6 b3 g5 e4 g6 Qb6 d8Q Ne7 g7 Nd7 g8B Ng6 f7 Nf6 d7 Qb7 a7 Rh7 Qe8 Bb4 d8R Bg4 Rd6 Bd2 Rd3 e2 Rd7 Ke3 Qb8 e1R Qc7 Rd8 Na3 b1B a8Q b2 Qda4 Rd1 Ba6 h3+ Kg3 Bd3 Rd6 b1B Re6 Nf4 Nf3 Ke2 Qe7 e3 Nc4 Bg6 Ne1 B6h5 Ba3 Rd4 Qaf8 Rd8 Rf1 h1B Kh2 Bhe4 Rf3 Rd4 Rg3 Kf1 Qab4 e2 Ra2 Rd8 Rb2 Rd4 Qa5 Rd8 Rb6 Rd4 Rd3 Rd8 Qab4 Rd4 Kg3 h2 Rb3 h1R Re3 Rg7 Bh7 Rh4 Bf5 Rh7 Rc3 Bh3 Kh2 B3g4+ Rh3 Rd8 Ng2 e1Q Bg6 Qe3 Ne1 Qd4 Bf5 Qa1 Bg6 Bed3 Be4 Bdc2 Bf3 Be4 Bh1 Be3 Bf3 R1d4 Bh1 Bd2 Bg2+ Ke2 Qc3 Kf2 Bd6 Ke2 Qb4 Kf2 Bf3 Kf1 Bg2+
n2brbk1/r1Q1P2n/qb1KR1bR/8/1BB2NN1/1p1Q2Nr/2r3Q1/q1R3b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 a4 Kf7 e4 c5 d4 g5 h4 b5 e5 g3+ Kf3 g2 h5 g4+ Kf2 f3 Kg3 b3 Kf4 b2 a5 f2 a6 c4 h6 c3 d6 b4 d7 g3 h7 c2 d5 b3 d6 Qa5 d8R Nd7 a7 Ngf6 Ba6 f1R+ Nf3 g1B Rh3 g2 Rh6 Rf2 Re8 Nb6 Nc3 b1R Bd2 c1B d7 Bb7 d8Q Be4 Bd3 Qa6 e6+ Kg7 Ke5 f4 Qb8 Bg6 Nh2 f3 Ne2 Rg8 h8N Nh7 Bb4 Bg5 Ng3 Rc2 Ng4 f2 Qf3 f1Q Bc4 Bd8 Qd3 Bgc5 Qbd6 g1B Qb8 Rbb2 Rc1 Rh2 Qc8 Rbc2 Qb8 Rh3 Qc7+ Nd7+ Kd5 Bb6 Kc6 Qf6 Kd5 Qfa1 Kc6 Rb8 a8Q Rb7 Kd5 Ra7 Re7+ Bf7 Ng6 Rh8 Kc6 Kg8 Nf4 Bg6 Qab7 Ba5+ Kd5 Nb6+ Kd6 Na8+ Qbc6 Bab6 Qg2 Bg7 Rf7 Bf8+ e7 Bh5 Re6 Bg6 Rff6 Be4 Nh1 Bh6 Qc6 Kg7 Qc3 Re8 Qd3 Kg8 Qc7 Bf8 Rh6 Bg6 Ng3
r2bQ2r/3Kp1Q1/3bn1B1/2NqP2R/1Qqn1N2/1B2RRb1/q1q1N3/1k3b1q b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Bg5 f5 Bh4 f4 Bg3 fxg3 Bh3 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 g5 f4 d5 h4 a5 b4 g2 h5 g3 h6 d3 f5 a4 f6 a3 f7 g4 e3 a2 b6 d2 h7 d4 b5 d3 b7 Nd7+ Kc6 Bg7 f8Q Nc5 b8Q Ba6 b6 Be5 b7 Bd6 Be2 Ne6 c5 Nh6 Rh3 Nf5 Qe1 d1Q Qg7 d2 Bc4 Qb3 Ne2 d1Q Nf4 g1Q Qb4 g2 Rf3 g3 Qc8 Qa5 b8N Qh1 Kd7 g1B c6 g2 c7 Bh2 Qe8 g1B c8B Qad5 Bb7 Qbc2 Bb3+ Qc4 Bc6 Nfd4 Nc3+ Kf5 Rc1 a1Q Nce2 Ke4 Rc3 Qa2 Rd3 Bb5 Na6 Bg3 Rc3 Qdc2 Rd3 Rf8 h8R B1h2 Rh5 Rh8 Rd1 Bg1 Re1 B1f2 Ng6 Kd3 e4+ Be3 e5 Rh7 Nc3 Rh8 Nc5+ Kd2 Re2+ Kc1 Nf4 Bg1 Re4 B1f2 Nce2+ Kb1 Ree3 Be1 Qa4 Ba5 Qb4 Bd8 Rf5 Q4c3 Rh5 Bd3 Bb5 Qcc4 B5a4 Bf5 Bb5 Bh3 Bc6 Bf1 Bb5 Q4c3 Bd3 Qcc4 Bg6
2Nq2q1/B2p1bQq/3Q3n/N1bn2B1/BR1r2nK/1r4P1/1q1kQR1n/Rq6 b - - 0 1 illegal: No possible last move
r1Qn2R1/1P1N3q/krnRQB2/1b2n1Q1/4N3/RKN3bq/2p1B3/qn1q2n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 c5 g4 Kc7 d4 Kb6 Kd2 a5 Kc3 f5 d5 h5 e5 a4 g5 a3 e6 a2 g6 h3 e7 f3 e8Q f2 g7 h2 d6 h4 d7 f4 Qde2 h3 Kb2 c3+ Kc2 f3 Qh5 c4 Qee8 Rh6 Qe6+ Nc6 Qhg4 Bd6 Be2 f1N Qf6 f2 Qff5 Bg3 Qfh5 Ba6 Na3 Nd2 Bd3 f1Q Ne2 Nb1 Bb2 Nge7 g8R Rg6 Rg1 h1Q Qe6 h2 Qg5 Qh3 Rd1 Qe4 Rd2 h1N Rd1 Kb7 b6 Nf2 Nb5 Ng4 Rd2 Nge5 Nd6+ Kb8 b7 Ka7 b8N Bb5 Rd1 Qeh4 Ne4 Qh7 Ng1 Kb7 Be2 Kb6 Rd6 Rh6 Kc1 c2 Bd4+ Kb7 Kb2 c3+ Kb3 c1N+ Kc2 Nf3 Bf6 Nd3 Kb3 c2 Qgd5 Qc8 d8Q Nde5 Nd7 Ka6 Qd2 Qb7 Qg5 Qb6 Qc7 Nd8 Qb8 N7c6 Qc8+ Ka7 Bc4 Qf2 Ne2 Qg1 N2c3 Qd1 Be2 Ng1 Nb8 Ba6 b5 Kb6 Nd7+ Ka5 b6 Bb5 b7 Ka6 Qef5 Na3 Rb1 a1Q Qe6 Rg6 Rb2 Nb1 Ra2+ Na3 Rd2 Rg7 Be7 Rg6 Qf7 Nb8 Rd4 Re6 Bf6 Rb6 Qe6 Nbc6 Rd6 Ne7 Na4 Nb1 Ra3 N7c6 Nac3+
1n1N2n1/pb1n1Q2/2B2nRq/2B1r1n1/kR1r2Q1/2b1N1r1/K1P1NBRr/5q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 b4 d5 e4 Kd7 g4 f5 b6 Kc6 g5 f3 e5 f4 b7 h3 g6 h4 e6 d3 Kc3 Kb5 Kb3 f2 g7 f3 e7 h2 e8N h3 Bg2 f1R Ra6 f2 Ra2 d4 Rb2 d2 Bf3 d3 Bg2 Qf6 Nf3 Re1 Rg1 h1N Ka2 f1Q Na3+ Ka4 b5 h2 b6 Ng3 Rb5 h1N Nc7 Bb4 Ne6 Re5 Nfd4 Qh6 Nd8 Ne4 Qg4 d1R Nc4 d2 Ne2 Bc3 Ba3 Nhg3 Ne3 Nh5 Bc5 Nhf6 Bh1 Nfd7 Rg2 Nc6 b8R Bb7 Rc8 Ncb8 Rc6 Rh7 Rg6 Rh8 Qf3 Nef6 Qg3 Rg5 Qh3 Rg3 Qe6 Re1 Qe7 d1N Qf7 Bc8 b7 Nf2 Bf8 Nh3 Bc5 Ne7 g8Q Ng5 Qgg7 Rd1 Qgg8 Rd4 Qgg7 Na6 b8B Bb7 Bc7 Nab8 B7d6 Neg8 Bf4 Rh3 Bg3 Rh7 Bf2 Rf3 Qgf8 Rg3 Qe6 Re7 Qg4 Re5 Qf7 Nc6 Rh2 Rc8 Bf3 Ncb8 Rg2 Rc6 Be4 Rcd6 Bc6 Rdd5 Qf3 Rh4 Qe4+ Rd4 Qg4 Rh2 Rb4+
KBQQ1r2/5RqN/b6k/1R1r1rnB/Nb1n4/1q2R1N1/P3p3/r1B2nbn b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 c5+ Ke5 h5 f4 b5 g4 e3 d4 h3 g5 h2 d6 c4 Kd5 e5 d7 c3 Nd2 e4 Be2 c2 Ngf3 b3 Bd3 e2 Qf1 e1B Ba3 c1R Qh3 b4 Rb1 h4 Ng1 b2 Nb3 Bc5 Ne2 Ra5 Ng3 Qf8 d8Q Nh6 Be2 e3 Rf1 Ba6 Qhc8 h1R f5+ Kh7 f6 h3 f7 h2 Bg4 e2 Bh5 Nc6 g6+ Kg7 Rf3 Rd1 Re3 Qe7 f8N Nf7 Nh7 Kh6 g7 Rf8 g8R Ng5 Rh8 Qg7 Rg8 Ba7+ Nc5 b3 Kd6 Bb6 d5 Nd4 Na4 Rc5 Rh8 Bb4 Rg8 Rdf1 Rh8 R8f5 Rf8 Rhg1 Rf7 h1N Kd7 Rb5 d6 Rbd5 Qc3 B6c5 Kc7 R1f4 Kb8 Rc1 Ra1 b1N d7 b2 Ka8 Nd2 Rb1 Nf1 Qc2 Ba7 Qcc8 Rf3 Qe8 R3f4 d8B Rd1 Bc7 Rf2 Rc1 b1Q Bb8 Qb3 Rc5 Ra1 Qed8 Bb6 Ra7 Rf8 Rb5 R2f5 Bc1 Nc6 Ree7 Bg1 Re3 Nd4 Rf7
R1q2N1N/Br1B4/r1b1Qnq1/Rb2Q1b1/1Qq5/P1nr1kN1/4pRq1/K4b2 b - - 0 1 illegal: No possible last move
Q1K1knr1/3N3r/1BR5/3q1Nn1/nR1Pq1B1/2Rq4/bNr3np/1QBqb3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 h5 g4 a5 d4 h3 e4 a4 b6 h2 g5 h4 b5 a3 b7 h3 e5 c3 e6 c4 e7 c2 g6 c3 g7 a2 b6 Qd5+ Kf2 f3 Ke3 f4+ Kd3 f2 Bd2 c1Q Na3 c2 Be2 f1N Nf3 Ne3 Rb1 a1N Rb4 Nd7 b8B Nb3 b7 Ng2 Ba7 Ngf6 g8Q Rh7 b8N Ne4 Nc4 Ng5 Nh4 f3 Nf5 f2 Nb2 f1Q Bb6 Nbc5+ Kc3 Qb1 Bc1 Na4+ Kd3 Qe4+ Kc4 Qa1 Rg1 h1Q Kb5 h2 Qd3 Bb7 Bg4 Bd5 Qh8 Qd1 Rf1 Qa2 Rf3 Qb3 Qf1 Qa3 Rc3 Ba2 Qg8 Qb3 Qg1 Qed3+ Kc6 Qd5+ Kc7 Q5e4 Kc8 Qd5 Be3 c1R Qf1 Rc2 Bc1 Q5e4 Qd5 Bh6 Qg8+ Nf8 Rc6 Ra7 Nd7 Rh8 Qd5 Rg8 Qa5 Rb7 Qa8 Qd5 Qf3 Qhe1 Qf1 Qee4 Qg1 Nge6 Qf1 Bd2 Qg1 Ng5 Rc3 Kf7 e8R Be1 Re6 Ra7 Rec6 Ke8 Nc5 Rf7 Nd7 Rh7 Qe3 Re2 Qd2 Rf2 Qc2 Re2 Qb1 Rf2 Ba5 Rc2 Bb6
3q3k/bK3Rrb/1n1N4/N2B1Q1P/1nq2R2/rr1p2B1/b1BQ1Q2/1N1r2qb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 Kf7 h4 Kg7 c4 a5 h5 f3 c5 f4 e5 f2 b6 a4 b7 a3 b5 a2 c6 g3 c7 f3 b6 g4 e6 g2 e7 g3 e8B Ra3+ Nc3 Nf6 Bg5 Nc6 b8Q Bc5 b7 Ba7 Bc1 Nd7 Bf7 Nb6 Rh4 Be6 Ne2 g1R c8N g2 Qf4 Rh7 b8Q Rb3 Qg4+ Kh8 Qbf4 Rg7 Nd6 Rh1 Qg6 g1Q Qdd2 Rh3 Rb1 a1Q Qgf5 Qa4 Bg2 f1R Bg6 f2+ Qf3 Bg8 Rf4 Rd1 Bb2 Qb4 Nc1 Bh7 Qe3 Ra3 Nb3 Qa4 Bf3 f1B+ Qe2 Rg3 Na5 Bg2 Qf2 Bh1 Bc1 Qb4 Rb3 Rh3 Nb1 Qb5+ Kc2 d3+ Kc3 Nb4 Kd4 Qa6 Kc5 d4 Bd5 Qac8+ Kb5 Qe6 Rc3 Qe2 Rc7 Qef1 Qde2 d2 Rf7 Rhb3 Bb2 Rc1 Bc3 d1B Be1 Bc2 Kc5 Rd1 Qd2 Bd3 Bb7 Bc4 Bd5 Na6+ Kc6 Nb4+ Kb7 Qe2 Qf6 Qeg4 Bc2 d3 Qg5 Qe6 Qf5 Qe4 Bc6 Be6 Bd5 Qc4 Rd7 Beg8 Rf7 Qg2 Qg1 Qce4 Re7 Rb2 Bc6 Ba2 Bd5 Qc4 Rf7 Rbb3 Bg3 Qh2 Qgg2 Qg1 Qgf2
n3Nr2/1n4rR/Q1q5/1qb3bp/1R3BqB/r1q1B1RN/bQb1Q2P/K6k b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 f5 b5 axb5 e4 e3 g6 Bc4 gxf5 Be2 f4 Bf3 exf3 Kd2 Ke7 c4 Kf6 Kc2 Kg5 b4 Kg4 Kb2 h5 g3 a5 c5 d5 b6 f5 b7 d3 c6 a4 c7 a3+ Ka2 d2 e4 d4 e5 d3 e6 Nf6 e7 Qd6 e8R Rh7 b5 Be6+ Qb3 d1Q c8Q d2 b6 f2 Qc5 f1R Qb4 Nd5 Qd3 Na6 b8B Qc6 b7 Nb6+ Qdc4 Nc5 Nh3 Kf3 g4 Kg2 g5 f3 g6 f2 g7 f4 g8Q+ Qg4 Bb2 d1B Nd2 f3 Rb1 Bc2 Bg3 Be7 b8B Nb7 Qa5 Bc5 Qh8 Ra7 B2e5 Na8 Bh4 Re7 Ne4 Bf7 Ka1 a2 Qe1 Ra3 Qf6 Bd5 Rh8 Rg7 Bd4 Be6 Kb2 Bg8 Nd6 a1B+ Kc1 Bf7 Qa6 Ba2 Rh7 Bc3 Qe5 Bd2+ Kb2 Bg5 Qd2 Rc1 Qd1 f1Q Ne8 f2 Be3 Qe1 Ka1 f1Q Qc3 Qfb5 Qe2+ Qf2 Be5 Rd1 Beg3 Rd5 Rhf1 Rf5 Bgf4 Rff7 Rb4 Rf8 Qd1 Qfe2 Rf3 Qed3 Qe2+ Kh1 Qb2 Qc3 Rg3
rb6/1r1R1b2/1B1N1rq1/1k3PN1/2R5/1p1qnQ1b/B1r1bR1n/BnN3QK b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 g4 c5 a4 h5 f4 b5 Kf2 e5 Kg2 h3+ Kh2 e3 g5 c4 a5 c3 g6 c2 d6 Kc6 a6 e2 a7 e1R g7 b3 d7 b2 Ra3 b4 Qe2 h4 Nd2 b1N Rf3 b3 Rf2 e4 Rg2 e3 Qf2 e2 d5+ Kb5 d6 Ne7 g8R Rh6 Ngf3 Nf5 R8g4 Rf6 Qd4 Nc6 Rf2 Ne3 Ng5 Ne5 Bb2 c1R Ndf3 Rc2 Ng1 Qe8 d8B Qg6 d7 Bd6 Bg2 Bb8 Ba1 Rd1 Bf3 e1Q Bb6 Qe2 d8N Qed3 Ne2 Be6 f5 Bf7 Bg2 Re1 Rhf1 Nf3+ Kh1 h2 Nb7 Rec1 Rg1 Rc7 Rd1 R1c2 Nc5 Rb7 Nc1 Nfd2 Bf3 Ndf1 Be4 Nd5 Kg2 h1B+ Kg1 h3 Rgf4 Rd7 Nb7 Bg2 Rdd2 Nh2 Nd6+ Ka6 Rd1 Ne3 Rh4 Bf1 Kh1 Be2 Qc5 Qd5 Rd4 Rb7 Rc4 Qd3 Rh8 Nhf1 Rd8 h2 Rd7 Nd1 Kg2 h1B+ Kg1 Bhf3 Qd4 Bg4 Kh1 Bh3 Qe3 Nh2 Qg3 Rc3 Qg1 Qg3 Bc2 Ne3 Bd3 Na3 Bb1 Rc2 Ba2 Nb1 Qf1 Qf3+ Qg2 Qd5 Qf3 Qd3 Qg4 Qh5 Qg1 Qg6 Nc8 Kb5 Rdd4 Re7 Rd8 Bc7 Rdd4 Rb8 a8Q Bf4 Qe4 Ra8 Qf3 Rb7 Rd7 Bb8 Nd6+
b1BNnK2/3N3Q/r4Qq1/2Qp1R2/2R2BP1/b3qnn1/2R1qrnN/1r2r1k1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 a5 e4 h5 c4 d5+ Ke5 f5 g4 h3 b6 f3 b7 h2 b3 f4 Ra4 d3 Qe2 f2 Qf3 h4 Bd2 h3 Be2 f1R Nc3 Nd7+ Ke6 Kd4 Kf7 Qf6+ Ke8 Rf2 b8N Bb7 b4 Ra6 c5 Ba8 c6 Ne5 c7 Qf5 Bc1 d2 c8R d1N Na2 Ne3 Nd7 Ng2 b5+ Bb4 Bc4 Ba3 Nb4 Qg6+ Kf8 Rh7 b6 Re7 b7 Nf6 b8Q Ne8 Qb5 Ree6 Qe2 Nf3 e5 Re7 Qf1 Ree6 Bb2+ Ke3 Rc5 Re7 Nc6 Re6 Rb4 a4 Nd8 Reb6 e6 Rb8 Ne2 Rb7 Rg1 h1Q e7 h2 Ng3 Rbb6 Qa1 Rb8 Rf1 Qg1 Qa5 h1N Be5 Rb5 Be2 Rb7 Rbc4 Rb1 Bd3 Re1 Bf5 Rb1 Ne4 Ng3 Ng5 Ke2 Bb8 Re1 Qf6 Rb1 Rfc1 Qe1 Rc7 Kf1 R1c2 Qe3 Qc5 Kg1 Rc8 Bc1 Rc6 a3 Re6 a2 Re5 a1R Bd6 Ng7 e8Q Ba3 Qef7 Ne8 Qh7 Re1 Be6 Rab1 Rf5 Nd4 Qhe7 f3 Bf4 Rd2 Nb8 f2 Bc8 f1Q Qh7 Rf2 Nd7 Qfe2 Nf3+ Kf1 Nh2+ Kg1 Qe5 Nf3 Qf6
B3nQR1/N3R1B1/2Bq3n/1Pqqb2q/K6p/2k1bQ2/2n3r1/1NnR1brQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb3 a5 g5 d3 g6 Kd4 e5 f3 c5 h3 b6 f4 g7 h4 e6 d2 e7 f2 e8R f3 b7 h2 c6 a4+ Ka3 Nd7 b8Q Nh6 g8B Qg5 c7 Ba6 c8Q Nf6 Nh3 Bc5 Be2 f1N Re7 f2 Rf7 Ng3 Bf1 Ne2 Qcb7 Ne8 Bh7 Rg8 Bg2 f1N Qe1 d1Q Qc6 Ne3 Qbc8 Nc2+ Ka2 a3 Kb3 a2 Rg1 h1Q Nf2 Qdd2 Ba3 Nc1+ Ka4 Bf1+ Ra7 Qc3 b5 Qh5 Bb2 Rb8 Bf3 Rg2 Ng4 Rb7 Bhe4 Rg7 Ne5 Qh2 Nc4 Qd6 Re7 Ba7 Na5 R7g3 Ba3 Qcc5 Q6b7 Rg4 Nc6+ Kc4 Qg3 d4 Bb2 d3 Bg7 d2 Qh3 d1Q Qh1 Bb6 Na7 Q1d2 Bc6 Q2d5 Qf5 R4g3 Qf8 Kd3 Na3 Kd2 Rb1 a1B Qa8 Be5 Ra1 Ba5 Nb1+ Kd3 Qb7 Bd2 Qa8 Be3 Be4+ Kd4 Qf3 Nf6 Qf8 Ne8 Ba8 Qdf7 Bec6 Qfd5 Ra3 Kc4 Rd3 Rg4 Rd1 R4g3 Na3+ Kc3 Nb1+ Kb2 Qh3 Rh2 Bh8 Rh1 Rg2 Rg1 Qh1 Rg5 Rg4 Rg6 Rf4 R6g2 Rg4 Qd8 Rg8 Q8d6 Nd2 Kc3 Bg7 Kd4 Nb1+ Kc4 Na3+ Kc3 Nb1+
4R1b1/r1Nn1nK1/B1B2n2/Np4bq/k3r2R/2R3Pn/1q3Nb1/3qBbQQ b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 c5 Kg4 h5+ Kf5 c4 d4 f3 a4 c3 e4 b3 e5 c2 d6 Kc6+ e6 f2 g3 b2 a5 h3 d7 h4 e7 h2 e8N h3 a6 Bh6 a7 Bg5 Ra2 Nf6 Na3 b1Q Ne2 Qb2 Ng1 Rh4 Nc7 Re4 Bg2 f1B Bd2 c1N Be1 Nd3 Qa1 Ne5 Nc4 b5 d5+ Kc5 Bf3 Bg2 d6 Qh8 Ra6 Qh5 Na5 Bb7 d8Q Nbd7 Rb6 Bd5 Qh8 Bb3 Rb8 Ba2 Re8 Bd5 Bf2+ Kb4 Qh6 Ba2 Be1+ Ka4 Qb1 Rb4 Bb7 Re4 Ba6 Bd5 Ne2 Bc4 Nc1 Qd1 Rf1 h1Q Rf4 h2 Nd3 Qh5 Qc1 Qg1 Rh4 h1N Qh8 Nf2 Qh7 Nh3 Nf2 Qf1 Qe3 Qd3 Qc5 Qdd1 Qd4 Rb8 a8B Rb7 Qh8 Ra7 Bc6 Nh7 Qc5 f6 Rc8 Bg8 Qc1 Nf7 Qc5 Qhf3+ Kg6 Qh5+ Kg7 f5+ Qd4+ Qb4 Qb6 f4 Qd4 f3 Qe3 Nc5 d7 Nf6 d8R Qb2 Rd3 Ncd7 Rc3 Qbb3 Re8 Qb2 Ng4 f2 Qc5 f1B Qg1 Nb6 Nf2 Nbd7 Rf4 Qhg4 Qh4 Qh5 Rg4 Nf4 Qhh1 Nh3 Rh4
2R4r/b2kn1K1/2qQ4/bp1q2nP/1rq2B2/1B1b1q2/2N1BRb1/1QQR2nN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 c5 h4 b5 a4 f5 d4 g5 e4 g3+ Kf3 b3 h5 c4 e5 b2 d6 g2 a5 c3 a6 c2 d5 Nc6 e6 Nce7 a7 Nf6 Be3 c1Q Rh2 Bb7 Be2 Ne4 Nh3 g1B Na3 b1B Rf2 Qc6 Qc1 Bd3 Nc2 Rc8 a8Q g4+ Kg2 g3 Kf3 g2 Qa2 Bg7 Qab1 Bc3 Bd2 Ba5 d7+ Kf8 d6 Ba8 Rf1 Ba7 Nf2 Rc7 Nh1 g1N+ Kg2 Bb7 Rf2 f3+ Kh2 Ba8 Bf4 Ng5 Kg3 Bb7 Kh4 Qa8 Rf1 f2 Rd1 f1Q Ra2 Qff3 d8R+ Qe8 d7 Rc4 Rb8 Rb4 d8Q Bbe4 Qd6 Qd5 Be5 f4 Rc8 Qf1 Rb2 f3 Bf4 f2 Ra2 Bg2 Rb2 Qd8 Ra2 Ke8 Kg4 Nc6 e7 Qc4 Kh4 Qe1 Rb2 f1Q+ Kg4 Qec3 Ra2 Ne4 Kf5 Qf2 Kg6 Qf3 Qc5 Kd7 e8B+ Ke6 Qb6 Qdd5 Bf7+ Kd7 Qd4 Ne7+ Kg7 Ng5 Qe5 Qde4 Rb2 Qcc6 Bb3 Qed5 Qd4 Q3c4 Qc5 Rd8 Qd6+ Ke8 Na3 Qde4 Bf1 Qc4d5 Rf2 Qec4 Qc5 Kd7 Nc2 Rf8 Be2 Rh8 Qd6+
6r1/2nR1rb1/qBb3pb/R1n3b1/BP3N1Q/r1N3n1/kqBQn2K/5NR1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Ke6 b4 Kd5 h4 Kc4 e4+ d3 b6 d5 e5 a5 c3 f5 b7 f3+ Kh2 g6 e6 g3+ Kh3 a4 e7 f2 e8N d4 h5 a3 h6 g2 h7 a2 Nc7 f4+ Kh2 f3 Bh6 Nf6 Qc1 Kb3 c4 d2 c5 d1N c6 d3 Qc5 d2 Nc3 Qd6+ Qe5 Ra3 Nce2 Nbd7 b8R Ne8 Ng3 Nc5 Na6 Rg8 h8Q Nc3 c7 d1Q N1e2 Bd7 c8B Q1d4 Qe3 Bc6 Nf4 Nc7 Qd2 Ne2 Rg1 Qb2 Rb7 Qd3 Bg5 Bh6 Bf5 Qd6 Ra7 Qdf6 Rd1 a1B Bc2+ Ka2 Qh7 Qe6 Bd8 Bg5 Qh4 Qc4 Nb8 Qa6 Nd7 Bh6 Nf6 Bg5 Nfe4 Bh6 Rh1 g1B+ Kh3 Bh2 Rg1 Bg5 Bg2 f1N Ba4 f2 Bc2 Ne3 Nf1 Nf5+ Bf3 Nfg3 Bg2 Qd3 Ra5 Qa6 Bh1 Na8 Bb6 Nc7 Bf3 Bh6 Bg4 Bg5 Bd7 Bh6 Ne3 f1R Be8 Rf3 Nf1 Bg5 Ne6 Rf7 Nf4 Ba8 Bea4 Bc6 Qe1 Bh6 Rd7 Bg5 Qd2 Bh6 Rh1 Bg1 Kg2 Be3 Kh2 Bg5 Rg1 Bh6 Nh5 Beg5 Nf4 Qb1 Nf2 Bag7 Nd1 Qb2 Nc3+
BK1bR3/4QRr1/1BpN1q1N/5n1k/PNn3b1/nQn5/r2B1q1b/1Q1q1b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 g5 h4 f5 e4 Kf7 d4 Kg6 d6 b5 d7 f3 Ke3 f2 e5 b3 d5 b2 Kd4 g3 d6 f4 Kd5 b4 e6 g4 e7 b3 e8N g2 Nc3 b1N Bd2 g3 Nh3 g1Q Ng5 g2 Nf7 f3 Nh6 b2 Qb3 Na3 Re1 Qf6 d8B b1N d7 Nc6 Nd6 Na5 Re8 N5c4 Kc6 Rh7 Nd5 Kh5 Nb4 Be7 Bd3 f1Q Be4 f2 Rh3 Nb5 Rf3 Qd1 Rf4 f1B a4 Ra7 Rf3 Qf2 Bd5 g1B Rf5+ Qg5 Rf7 Bh2 Be4 Qgf4 Bh1 N5c3 Bf3+ Kg6 h5+ Kg5 Bd5 Nba3 Qb1 Ra8 Nc2 Na2 Nhf5 Rb8 h6 Rb2 Nb4 Rg7 h7 Kh5 Nh6 Nc3 Be4 Ra2 Qb3 Ne2 h8Q Rg1 Qa1 Nc3 Bh1 Rg7 Qab1 Bh4 Bg5 Q4d4 d8Q Bg4 Kb7 Ne7 Kb8 Nf5 Ba8 c6 Bge3 Bg5 Qc7 Bd8 Qe7 Qf6 Bb6
r1bRK3/1b3B2/pk2bqBb/qr4n1/N4BPn/1N2Q1R1/q1Q3q1/R1N3r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 c4 Kd7 g4 Kc7 e4 h5 b4 f3 e5 f2 e6 h3 c5 h4 c6 a6 e7 f4 e8N+ Kb6 c7 h2 Qe1 f3 Bg2 f1B+ Ne2 f2 Nd6 h3 Bd2 Nf6 Nb7 Ne4 Rg1 h1B Nc5 h2 Bf4 Nd7 Nd2 Bh6 Ndb3 Ng5 Be4 Nf8 Rg3 Ng6 Qd2 Qf6 Qe3 Nh4 Bg6 Re8 Bf7 Re5 Bg6 Bfg2 Nec1 f1R Bf7 Be6 c8B Rg1 Bd7 Bf3 Bde8 Bhg2 Bg6 h1Q Bef7 Qh2 Kc2 d3+ Kc3 d2 Kd4 Kc7 b6+ Kc6 b7 d1Q+ Qd3 Qe2 b8R Qa2 Rd8 Kb6 b5 Bh1 Qe3 Qhg2 Kc3 d4+ Kb4 Bc8 Kc4 d3 Kd4 Re4+ Kd5 Be6+ Kd6 d2 Qe2 Rb4 Qe3 Qg7 Ke7 d1Q Ke8 Bb7 Qe4 Bbc8 Qc4 Qd6 Qc2 Kc7 b6+ Kc6 b7 Kb6 Ne2 Qdd5 Nec1 Qf6 b8Q+ Qb7 Bg8 Rb5 Qe5 Qbd5 B8f7 Qdd2 Qe3 Qda5 Bd6 Qgd2 Bb8 Bhb7 Bf4 Qg2 Na4#
3N2b1/1q2RB1P/nR4q1/n1R2bb1/2rrk1rN/2Brq3/pN5Q/1bB1QK2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 Ke7 c4 Kf6 e4 Ke5 b4 a5 c5 f5 h5 g5 c6 d5 b6 f3 c7 g3 b5 f2+ Ke2 g2 b7 f4 h6 g4 h7 g3 b6 f3+ Kd3 a4 Nh3 g1Q Qd2 g2 Qe2 a3 Nc3 a2 Ba3 Ne7 Na4 Bf5 c8R Na6 b8Q+ Qc7 b7 Bh6 Ng5 Rg8 Ne6 Rg4 Nd8 Nc6 Rc1 Bg5 Rh4 Na5 Rh2 Kf4 Kd2 d3 e5 d4 e6 Ra7 Kd1 d2 Qe1 Bb1 Bd3 f1B e7 f2 Bc4 Bfd3 e8N f1B Nb2 Bf5 Ng7 Qe3 Rh6 g1Q Bf7 Bc4 Rb6 Ke4 Bb4 Qe7 Qh2 Bd5 b8B Rc7 Ba3 Rc4 Be5 Qb7 Rc7 Qg3 Bf6 Qd6 Be5 Qg6 Re7 Bde6 Be8 Bg8 Bf7 Rb4 Rc5 Rc4 Qeg1 Qh3 Ke2 d1R Kf2 d3 Qe1+ Qe3+ Kf1 d2 Bc3+ Qe6 Rec7 Qg6 Rd7 Rc1 Rdc7 d1R Rd7 Rdd4 Re7+ Be6 Nf5 Rcd1 Nh4 R1d3 Na4 Nb8 Bc1 Na6 Rec7 Bc8 Nb2 Bf5 Re7+
qnq2R1n/6pr/n4Q2/qP1Nkbn1/2R1q1B1/b2rN3/1b2QNQ1/BK1R4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 h4 a5 b4 f5 c4 a4 Kc2 f3 c5+ Ke5 h5 d5 c6 a3 b6 d3+ Kd2 f2 c7 a2 h6 g3 b7 d4 b5 g2 h7 f4 Rh5+ Bf5 c8Q f3 Bb2 Nh6 Kc1 d2+ Kc2 Qa5 Bd3 f1Q Rg5 f2 Qd7 Qe2 Qd8 f1N Nh3 g1N Nc3 Ba3 Nd5 Nf3 Ne3 Nf7 Rg4 Ng3 Nf2 N3g5 Qf8 Qf3 Be2 Ra7 Rc1 a1B Kb1 Ra6 Qc2 Rd6 Rd1 Rd8 Bc3 B1b2 Rh4 Qg2 Bg4 Rd6 Qd3 Qf3 Qe2 Qf4 Rc1 d1Q Qd8 Qb3 Rd1 Qe6 Qb6 Qc8 Qc6 Na6 b8Q Nh5 Qbb6 Nf6 Qcb7 Nd7 Qd8 Rf8 h8R Ndb8 Qa8 Re8 Rf8 Nh8 Qc6 Rh6 Qa8 Rh7 Qb7 Bc1 Ba1 Bcb2 Qa8 d3 Qe7+ Kd4 e5 Qe4 e6 Ke5 Qab7 Rd8 Qf6+ Kf4 e7 d2+ Ka2 Rd3 e8N Qad8 Kb1 Qa5 Qbf7 Qa8 Qa2 Qe4 Nc7 Qa8 Rc1 d1Q Qd5 Qda4 Qg2 Q8e4 Rhh1 Qa8 Rhd1 Qd4 Rc4 Qde4 Qh6 Ke5 Ncd5 Bd4 Qb6 Bdb2 Qf6+
bb1q1q2/2qrBP2/Q3N3/1n3Q1R/2p3B1/1r2QN2/kbKnr2r/1R2bNB1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kd7 Kd2 Ke6 b4 Kd5 f4 h5 g4 e5 f5 a5 g5 c5 g6 a4 b6 e3+ Kc2 e4 b5 c3 f6 a3 b7 a2 g7 e2 b6 Kc4 d5 h3 f7 e3 d6 h4 d7 h2 Qd2 h3 Qd6 Nf6 g8N Na6 b8Q Ne4 b7 Ra7 Qd2 Nc7 Nf6 Bd6 Ng4 Nb5 Qa8 Bb8 Qd1 Nd2 Bg2 e1R Be4 e2 Ne3+ Kb4 Kd3 c2 Bf3 Kb3 Nf5 Rg8 Ba3 Rg3 Ng7 Qf8 d8B Be6 Bb4 Bd5 Ne6 Kb2 Nc7 c1Q Be7 Bc6 Qa4 Qd1 Ne6 c4+ Ke3 Be4 Qa5 Bc6 Bbc5 Bd5 Na3 Bc6 Rc1 a1B Rb1+ Ka2 Bb6 Bb2 Nc2+ Na3 Qf5 Nb5 Kf2 Be4 Bg4 Rb3 Ne3 Bd5 Nf3 Bc6 Rg1 h1Q Nf1 Qh2+ Rg2 Qd6 Rh2 Qc7 Rh1 h2 Be3 Raa3 Qa6 Rd3 Ba7 Rd7 Bac5 Ba7 b8Q Ba8 Qbb6 Bb8 Rg1 h1R Rg2 Nb3 Ke3 Rh2 Rg3 Qdd6 Rh3 Qcd8 Rh5 Q6c7 Qd6 Nd2+ Qdd3 Rc1 Qc3 e1B Bb6 Rc2 Ba7 Rh3 Ke2 Rh2+ Kd1 Re2 Bg1 Rh2 Qc8 Rb3 Qe3 Rcc3 Qb7 Rcd3 Qc6 R3d4 Kc2 Re4 Qd3 Ree2 Qe3 Na7 Qcb6 Nb5 Qa6+
1r2bR2/1q1pqN2/3rP1QQ/bQ4b1/B2r1B2/1qn4k/1brN3B/2nRK2R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 a5 h4 g5 b6 f5 b5 a4 h5 a3 c5 f3 h6 a2 b7 d3 b6 g3 h7 g4 e5 g2 c6 f2+ Kd2 g3 c7 f4 Qb3+ Kf5 e6 Kg4 Ba3 f3 Bb2 Bh6+ Kd1 d2 Qd5 Ne7 Qc6 Na6 b8R Bg5 b7 Nd5 Be2 f1Q+ Kc2 d1R Bc4 f2 Bg7 Nc3 Qd5 Nb4+ Kb2 Qd3 Rh5 f1R Bd4 Rf2+ Nd2 Ra6 Bf6 Qe7 Rh1 Rd6 Nh3 g1B Qb5 g2 Be5 Rhf8 Rc1 a1B+ Kb3 Kh4 Bh2 Bb2 h8Q+ Kg4 Ra8 Nba2 b8B Bb7 c8Q Be4 Qg7 Bg6 Qe8 Qe4 Bd3 Qb7 Kc2 Bf7 Rb1 Nc1 Bc7 Bh5 Qeg6 Rb8 Bc4 Re2 Bb3 Bb6 Ba4 g1Q Ra1 Rd4 Bcf4 Ba5 Rb1 Kh4 Ra1 Qe3 Rb1 Bh6 Ng5 Qh3 Nf7 Bg5 Ra6 Qhf3 Rc6 Kh3 Rc8 Re5 Rf8 Rc5 Nc4 R1d3 Nd2 Rd6 Rd1 R3d4 Rh1 N3e2+ Kd1 Rc2 Ra1 Qb3 Ke1 Nc3 Rb1 N1a2 Rd1 Nc1 Re8 Nb1 Rh8 Nc3 Rf8 Qb4 Qgf5+ Kh4 Ne5 Be8 Nf7 Qb3 Qfg6 Kh3 Q7h6+
1QKbnB1b/1Np1rrn1/2P4B/q1N1bn2/b3qR2/5n2/2Rk1rQ1/2N2B1Q b - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 a5 g4 h5 d4 f5 d5 h3 g5 f2 c5 h4 b6 f4 b7 f3 b3 h2 g6 h3 g7 a4 d6 a3 d7 a2 Ke6 Nc6 b8N Rh7 Nc3 Nf6 g8Q Bg7 Qd5 Ne8 Qd1 Ne5 Nge2 Bh8 Rg1 h1N Qg5 h2 Qg3 Rf7 Qg7 Ng3 Nd4 h1Q Nde2 Nh5 Qg6 Nhg7+ Kd5 Qh5 Rb1 a1B Bh6 Ra2 Nc1 Re2 Qg2 e6+ Kd4 Qe7 d8B Bd7 Rb2 Ba4 c6 Re1 Nd7 Re3 Be2 f1R Rc2 f2 Nc5 Qhg5 Bc4 Re2 Nb7 Nf3+ Kd3 e5 Ne4 Rfe1 Nec5 f1N Ba6 Ng3 Rf1 Qe6 Be7 N3f5 Bf8 Rf2 Bb5 Nd2 Qh5 Nf3 Qhh1 Bc3 Ne2 Qee7 Ke4 Ba1 Kd5 e4 Bd3 e3 Nc1 e2 Bb5 Be5 Ba6 Ka3 b4 Qh5 b5 Kb4 b6 Qeh4 Rd2 Kc3 Bd3 Qb4 Ra2 Qa5 Bc4 Qh4 Rd2 Nh5 Ke6 Qe4 Rb2 Rd1 Ba6 e1B Ra2 Rdd2 Bb5 Rde2 Rc2+ Kb4 Bd3 Bd2 Ba6 Bg5 Bc4 Be7 Kd7 Nhg7 Kc8 Re3 Re1 Bd8 Bf1 Rd3 Rd1 Rdd7 Rd6 Rde7 Rf6 N5d4 Rf4 Ndf5 Rb2+ Kc3 Rc2+ Kd4 Nd6 Ke3 b7 Ne6 b8Q N6g7 Rc4 Kd2 Ndb7 Ng5 Rc3 Nf3 Rc2+
KQ2Nnb1/BP3b1k/1Q1r4/3rNq2/1R1b4/4b1n1/1qnpr2B/nB2RQR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 f5 g4 Kf7 e4 Kg6 c4 h3 b4 h4 g5 d3 b6 d4 b7 f3 b5 d2 c5 f4 c6 h2 b6 a4 c7 a3 Bb2 f2 Qg4 d1R Qe6+ Qf6+ Kd5 h3 e5 a2 Qe8+ Kh7 e6 f3 e7 d3 Be5 Ra6 Bd6 Nd7 Kc6 Qb2 b8B Ngf6 Nd2 Nc5 Rc1 a1B Qd7 Nb3 Nc4 Bh6 Rb1 Re8 Qe6 Nd7 Ba7 Nf8 Bf4 Ra5 Nd6 Rd5 b7 Rd2 Kb6 Rd8 e8R Re2 Qf6 Be6 c8Q d2 Qc5 Bg8 Re5 Bf7 Ne8 R8d6+ Kc7 Bg8 Kb8 Bf7 Bg2 f1N Qb6 f2 Ka8 Ne3 Nf3 f1Q Rg1 h1N Bh2 Ng3 Re7 Nc2 Ne5 Qf5 g6+ Kg8 g7 Kh7 Be4 Be3 Rc7 Bg8 Rc4 Bf7 Rge1 Bg8 Rb4 Bf7 Bg1 h2 Rbd1 h1B Bh2 Bg8 Rg1 Bf3 Rde1 Bh5 Bd3 Bhf7 Be4 Ncd4 Bb1 Nc2 Qg5 Qa3 Qf4 Bad4 Qf2 Qb2 Qf1 Be6 Rh1 Bgf7 Rg1 Nba1 g8Q+ Kh6 Qg5+ Kh7 Qgd8 Bg8 Qdc7+ Bef7 Qb8
b1qk4/P1qNB1b1/2Br1qQ1/1qR1rN2/R4Q2/bNp5/1n2Bnb1/1R2K1n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 f5 e4 b5 h4 g5 a4 c5 h5 f3 e5 c4 a5 g3 d6 g2 h6 b3 d5 g4 h7 b4 a6 b2 e6 g3 e7 c3 a7 f4 Ra2 f2+ Ke2 f3+ Kd3 b3 Bd2 Nd7 Qe1 Ngf6 Be2 f1B Ra5 f2 Rc5 Ne4 Bh6 Qc7 Nf3 g1N Nbd2 g2 Nh4 Bb7 Nf5 Nb6 Qc1 b1Q+ Ke3 b2 Nb3 Rg8 h8Q Rg5 Qh7 Rd8 Qg6+ Kd7 Qd2 Na4 e8B+ Kc8 Qd4 Bg7 Bc6 Ba8 Qe5 Qd1 Qf4 b1Q Rh4 Nb2 Rh1 Rf8 d7+ Kd8 Rh4 Rf6 Rg4 Bh8 Bf8 Rd6 Rh4 Bg7 Rg4 Qc8 Rh4 Kc7 d8N Qe1 Nb7 Rh5 N7a5 Kd8 Nc4 Qc7 Ne5 Qed1 Beb5 Qg4 Nd7 Rg5 Be2 Rh5 Ng3 Re5 Rh1 Qe6 Nf5 Qf6 Rh4 Qa2 Rh1 Qa6 Rh4 Qac8 Rg4 Nf3 Rh4 g1B Rh1 Rde6 d6 Bh2 Rg1 Bg2 Rd1 f1Q Rb1 Na4 Kd3 Ng1 Kc2 Qf3 Kd1 Nf2+ Ke1 Nb2 Nb8 Qd3 d7 Qa5 Qfh6 Rd6 Qf4 Kc7 d8R Qdb5 Re8 Bg3 Re7+ Kd8 Nd7 Qac7 Re6 Red5 Re4 Re5 Qf3 Bf4 Ra4 Bc1 Qe4 Nbd1 Qd4 Ba3 Qf4 Nb2 Be7+
6Q1/1NbNBBQn/2rnRq2/3K2Rp/Brn1nP1N/1r2k3/1Q3rbr/2r5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 b6 e5 g5 a5 g6 a4 g7 a3 c3 h3 b5 h2 b7 e3+ Kd3 a2 b6 e2 Bh3 e1R Be3 e4+ Kc2 d3+ Kb3 d2 Bd4 e3 c4+ Ke4 c5 d5 c6 e2 c7 Rh6 Be3 d4 Kc4 d3 Na3 Nc6 b8Q Nce7 b7 Ra4+ Kc5 Nf6 g8N Nh7 Bd7 Nf5+ Ne7 Rf1 Nc4 e1R Nf3 Rf2 Qb3 d1N Qc3 d2 Nh4 Nb2 Ne5 d1N Rg1 h1R Rg5 Rhh2 Rb1 Nc4 Rb6 a1R Qa8 Rff1 b8Q+ Bb7 c8B R1a3 Bd2 Bg7 N7c6 Nf2 Na5 Rc1 Qc7 Qh8 Qb2 Rb3 Bb4 Ke3 Ba3 Bg2 Nb7 Ne4+ Kd5 Rf2 Bb5 Ra7 Be6 Ra4 Qg8 Rf6 Bf8 Rab4 Ba4 Rh6 Qe7 Rg6 Nd7 Be5 Qef7 Bc7 Be7 Qc3 Qfg7 Rf6 Bf7 Re6 Ra6 Qf6 Ra8 Reb6 Re8 Ra6 Bd8 Nfd6 Re6 Rc6 Be7
2Q3BB/4bQ2/2NPqr2/4n3/bpbb1R1r/2Rnrr1r/R2B3r/NK2N2k b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 Kc2 h5 a4 c5 e4 b5 g4 f5 a5 f3 g5 c4 g6 f4 g7 h3 a6 f2 a7 f3 Be2 f1B Bb2 b3+ Kc1 h2 Ra4 b4 Ra5 c3 Ba3 b2+ Kc2 h4 Nh3 f2 Qd3 Ne7 g8N Na6 Qd2 Qb6 Qc1 Bd7 Nd2 b1R Nb3 Nc6 Ng5 h3 Nf3 Ne5 Ne1 Nc5 Bb2 Ncd3 Ra2 Rh4 Na1 Re8 a8R Be7 R8a3 Ba4+ Rb3 Rf8 Bg4 Rf4 Be6 Rf6 Qf4 Be2 Rf1 h1R Bc1 h2 Bd2 Qc6 Qf5 Qd7 Bf7 Qe6 Qh3 Kc7 d6+ Kc6 d5+ Kc5 d7 Kd4 d8B Rd1 Rg1 f1R d6 R1f3 Rg4 Re3 Rf4 Rf1 Bc7 h1R Bd8 Rff3 Qf5 R1h3 Qg6 Nc1 Kb1 Bc4 Rba3 Qg4 Bd5 Qe6 Qf7 c2+ Kb2 Ne2 Rc3 c1B+ Kb1 Bb2+ Bc1 Rdd3 Bd2 Qd7 Be6 Nc1 Bd5 Rh2 Be6 Bf8 Ne7 Rfh3 Bd5 Ref3 Be6 Rde3 Bd5 Qe6 Nc6+ Kc5 Be7 Ncd3 Bd8 Rf5 Bf6 Be7 Bh8 Rf6 Rca3 Bd4 Rc3 Qd7 Qh5 Qf5 Bg8 Qe6 Qf7 Ng4 e5 Kd5 Rf5 Ke4 Nb8 Qc8 e6 Nge5 Nc6 Qd7 Rg5 Kf4 Rf5+ Kg3 Rf4 Kf2 Rf5 Kg1 Rf4 Bf8 e7 Kh1 e8Q Be7 Qef8 Qe6 Qc8
2K2b1B/1NnQ3P/4nN2/1BQ2r1k/pr2b3/RnbbbbR1/Nq4nB/3R4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 Kf7 h4 Kg6 c4 a5 b6 a4 b5 f3 b7 f2 b6 f4 e5 f3 e6 g3 e7 g2 e8R g4 c5 g3 c6 Nh6 c7 Ra5 Re5 Na6 b8N Bb7 c8Q Nc7 Qc2 Qf6 Bb2 Nf7 Re8 Ng5 Qe6 Kh5 Qe7 Nge6 Ne2 g1B Nec3 g2 Na2 Qe5 Be2 f1N Nc6 Be3 Nd8 g1B Qd7 Nd2 Nbc3 Nb3 Ne4 Rh6 Bf1 f2 Qc5 Rb5 Rh3 Rf6 Rd1 Rf5 Rg3 Rb4 Re7 Ba8 b7 Bd2 b8B Bc3 Nb7 Qf6 Ke2 d3+ Ke3 d2 Bb5 d4+ Kd3 f1N Reg7 Be3 Rf3 Nd5 Bh2 Ndc7 Rgg3 Qh8 Ng5 Qf6 Ke4 Qg7 Nh7 Qf6 Rc1 d1B Ra1 Be2 Rd1 Bc4 Ba1 d3 Bb2 Kh6 h5 d2 Ba1 Qh8 Nf6 Qg7 Rh3 Kg5 h6 Qh8 Rhg3+ Kh4 Rc1 d1B h7 Bde2 Ng8 Kh5 Rd1 Bf4 Bb2 Ne3 Ba1 Ng2 Nf6+ Kh4 Rfd3 Be3 Bb2 Rf2 Ba1 Bf3+ Kf5 Rf1 Kg6 Be4+ Kf7 Rf5 Bb2 Na6 Ke8 Qg7 Qde7 Nac7+ Kd7 Qh8 Kc8 Qg7 R3d2 Bcd3 Qd7 Qh8 Ra1 Qg7 Rdd1 Bf3 Nd6 Bae4 Nb7 Qh8 Nc1 Qg7 Ra3 Qh8 Na2 Qg7 Nd5 Kh5 Nf6+ Kh6 Ng4+ Kh5 Ne5 Be1 Ng4 Qc3 Ba1 Qd2 Bg7 Qb2 Bh8 Bc3 Nf6+
3br2B/2rB1KnP/kbpN2RR/1b3b1b/5n1R/5bnn/Qq2N3/Q3BN2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 g5 d4 b5 h4 f5 e4 c6 a5 Kc7 e5 Kb7 h5 b3 d6 g3+ Kf3 b2 d7 b4 d5 g4+ Ke2 g2 Kd3 f3 Kd4 f2 d6 b3 h6 g3 h7 f4 e6 f3 Ke5 Nf6 e7 Ne8 Ke6 Na6 Qe1 Qb6 Bd2 Ng7+ Kf6 Nc5 d8B Nd3 e8Q Ra7 d7 Nf4 Ra4 Be7+ Kf7 Bf6 Bc7 Bd8 Q8e2 Re8 Rc4 Ka6 Be5 Rc7 Rh6 Qd4 Bb4 Qb6 Nd2 b1B Bbc3 Be4 Qa1 b2 Bb4 b1B Bec3 Ngh5 Bh8 Ng7 Rd4+ Bbd3 Rdd6 Qb8 Rdg6 Bb5 Qc4 Qb7 Ne2 g1B Bh3 f1N Qca2 g2 Bc3 Ng3 Nf1 f2 Bf5 Be7 d8N Bf3 Bd7 Qb8 Nb7 Bd8 Nd6 Qb7 Nd2 f1B Bb4 Bb6 Bc3 Ka7 a6 g1N Ba5 B1g2 Nf1 Ngh3 Rg5 Bh5+ Rgg6 Ka8 a7 Be4 Be1 Bef3 Ba5 Qb8 Ne4 Kb7 Nd6+ Ka6 a8R+ Ba7 Qa4 Qb6 Q4a2 Qd4 Rb8 Qb2 Rb7 Bd3 Rb4 Bb6 Ra4 Bb5 Rb4 Nfe6 Rg4 Nef4 Rh4 Be7 Be6 Bd7 Bc4 Bdg4 Be6 Bd8+ Bd7 Bf5 Be1+
1QQ1nRnR/n4PrN/1B1q2bR/b4bNk/K5p1/1n6/2B3nb/n2Q1N1r b - - 0 1 illegal: No possible last move
2Q1N1R1/Bpr2BK1/rn1P1rQ1/2R2N1r/1n1qbr2/Bk2n3/2Nb1rRn/8 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 d4 c5 a4 f5 g5 f3 a5 f2 a6 f4 g6 b3 a7 f3 d6 b2 g7 h3 d5 h4 d7 h2 Be3 h3 Bh6 Na6 Ke6 Ne7 Kf6 Nb4 Bc1 Rh5 g8R Bh6 Ra2 Bd2 Qe1 Kb3 e4 c4 e5 c3 e6 c2 Bd3 f1N Be4 f2 Ne2 Ne3 Ng3 f1N Na3 b1R Bg6 Rb2 Kg7 Rh6 Bh5 Rf6 Bf7 Qb6 d8B Qd4 d6 N7d5 e7 Bf5 e8N Be4 Rg1 h1R Bb6 Nh2 Rg2 Rhf1 Nf5 Rf4 Ra1 Ra2 Qg3 Rb2 Qg4 Ra2 Bb2 c1R Qg6 Rc7 Nc2 Ra6 Ba3 Rac8 Ne1 Rc2 a8Q R8c7 Rc1 Ra2 Ba7 Rb2 Rc4 Nb6 Rg3 Ng4 Nh6 h2 Qd8 h1R Rg2 Rh5 Nf5 Bc1 Qa8 Rbf2 Qc8 Nh2 Nc2 Bd2 Rc5+
Qr6/kb3bR1/3K3B/b1NBp1bR/b1q1QRrQ/4nP2/5Nb1/nb1B2b1 b - - 0 1 illegal: No possible last move
1b1r1NB1/R1b1b1qN/1bR2q1q/4pQr1/1k2PQb1/4q2B/1r1n2K1/B2N3R b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 h3 g5 Bg2 g3 Bf1 Nd7 h4 g4 Qb3 Ndf6 Qc2 Ne4 Qd1 Ng5 hxg5 Ra6 Nh3 Ra7 Ng1 Ra8 f4 Kd7 a4 Kc6 d4 b5 f5 h5 d5+ Kc5 e3 h4 g6 c3 f6 h3 a5 c2 f7 h2 d6 g2 Kf2 g3+ Kf3 b3 d7 b2 g7 b4 a6 b3 a7 Nf6 g8R Rh5 Qd2 Ne4 Nc3 b1R Rg7 b2 Ba6 Kb4 Nh3 g1Q Qf2 c5 Ra5 g2 Bf1 c4 Bd2 c1B Rg4 e6 Qe1 Qf6+ Rf4 Qg7 d8Q Be7 f8N Rd5 Nf2 Rg5 Ng4 Bd7 Qc7 Rd8 a8B Bc8 Qh4 Bd7 Nd1+ c3 Bb5 Qe1 Nf6 g1B Qg4 Bf2 Rg1 h1Q+ Qg2 Qhh6 Rh1 Qg1 Be1 Bg3 Bf2 c2 Qh3 Bd2 Rf5 c1B Bd5 Bc3 Qe5 Bd4 N6h7 Bb6 Ra7 Bc8 Qf6 Bb8 Bd7 B6c7 Bb3 e5 Bg8 Bd2 Bde6 Bc3 Qf7 Bd4 Rf6 Bdb6 Qf1 Bd7 Bh3 Bc8 Rc6 Qg3+ Ke2 Bg4+ Qf3 Qf4 Ke1 Qff6 Qf5 Rc1 Bg1 b1Q Q1f4 Qb3 Kf1 Rb1 Kg2 Qd3 Bf2 Qd4 Bg1 Nd2 e4 Qd3 Bd4 Qe3 Ba1 Rb3 Be6 Rb2 Bg8
3QnqBr/5Qnn/2Qp1rr1/qrRb4/1B1P3R/3kqN2/1K1nR3/4r1NN b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Nf3 b5 Bb2 b3 Ng1 b4 Bc1 b2 Na3 b3 Nb1 Bb4 cxb4 Qf6 Nc3 Qg5 Nb1 Qd8 d4 Ke7 Kd2 Ke6 Kc3 Kf5 g4+ Ke4 a4 f5 a5 c5 e3 h5 g5 f3 a6 f2 g6 h3 b5 h4 g7 h2 a7 d6 b6 h3 b7 c4 Ra4 f4 Qe1 f3 Rb4 Nd7 b8N Ndf6 Na6 Qa5 Bg2 f1Q Nb8 Nh7 Qe2 Be6 Qf2 Ngf6 g8Q Ne8 Nd7 Bd5 Ne5 Rb8 a8Q Rb5 Qg5 Rg8 Ng4 Rg6 Qd2 Qf2 Qgd8 Qf1 Qc6 Qf2 Na3 b1R Qa2 b2 Bd2 Re1 Nc2 b1N+ Kb2 Kd3 e4 Qf1 e5 f2 e6 c3+ Ka1 Nef6 e7 Ne8 Nce3 c2 Nf5 c1Q Ng3 Qca3 Rc4 Qc1 Bb4 Qe3 Bf3 Nd2+ Kb2 Qg2 Qdb6 f1R Rc5 Qgf2 Bg2 Qf8 Qd8 Rff6 Bf3 Bb3 Bd5 Bc4 Bg8 Bd5 N3e2 Be6 Nf3 Bd5 Rf1 h1R Neg1 h2 Rf2 Be4 Qf7 Bd5 Re2 Ra1 Nh3 Rhe1 Nhg1 h1N Rh2 Ng3 Rh1 Nh5 Rh4 Nc7 e8R Ng7 Re5 Nce8 Re7 Qg5 Re2 Qe3 Nh3 Rh1 Nhg1 Re1 Ngh2 Nf5 Nf1 Nfg7 Ng3 Ng5 Re4 Rh8 Rh4 Nh7 Nh1
1rq1r2R/1r1bqk1B/2Qr3p/5BQR/n3R3/B4QKP/1N3rb1/bqq4N b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 Qd3 Nc6 Qd2 Nce7 Qd3 exf4 Qd1 f3 Nc3 f4 Nb1 Nf5 gxf5 Ra6 Kd2 Ra3 Ke1 Ra8 Kf2 d5 e4 g5 a4 b5 c4 h6 a5 g4 h3 d3 a6 d2 f6 b3 c5 b2 c6 b4 e5 d4 a7 b3 c7 d3 e6 Bd7 c8Q Rb8 a8B Ne7 Ra4 Nd5 e7 Bg7 Qc4 Qc8 Ne2 g3+ Kg1 g2 Kh2 f2 Qdc2 d1Q Qc6 f3 Rg1 d2 Ng3 Kf7 e8R Nb6 Nc3 b1R Ba3 b2 Bd3 f1R Bf5 f2 Nh1 Qc1 Kg3 d1R Rae4 Rd6 Qd2 Na4 Nd1 Rg8 R8e5 Re8 Bh7 Qc5 Rh5 Qe5+ Qf4 Qe7 Qg4 Rc1 Qf5 b1Q Qg5 Rc5 Bf5 Rcb5 Nb2 R5b7 Bh7 Rc1 Rge1 f1B R1e2 g1Q+ Rg2 Kf8 f7 Qc5 Rf2 Rc2 Rf6 Rf2 Bf5 Qe6 Rg6 Bf6 Rg8+ Ke7 Bh7 Qcc1 Rh8 Bg2 f8Q+ Kd8 Qgb5 Qe7 Qg5 Bg7 Qf3 Bc3 Nd3 Ba1 Nb2 Rc7 Rd4 Qf6 Qb6 Ke7 Bae4 Rcb7 Bef5 Kf7 Re4 Qe7 Qc6
1NQ3B1/r5QR/2nb1r2/3nr2r/1b1N1p1n/Q1n1RP2/3B3B/kNb2bnK b - - 0 1 legal: proof: d4 h5 b4 a5 d5 axb4 d6 cxd6 Be3 d5 Bc1 d4 g4 hxg4 e4 d5 Qe2 d3 Qd2 d4 Qd1 Qd5 exd5 Rh5 Be2 Rh7 Bf1 Rh8 h4 Kd7 c4 Kd6 a4 Kc5 h5 g5 h6 e5 d6 b5 d7 f5 d8B b3 h7 Kb4 f3 f4 Kf2 d2 Kg2 g3 a5 e4 a6 e3 c5 b2 c6 g4 a7 d3 c7 e2 Rh4 e1B Bf6 Ne7 Rh5 Ng6 Na3 b1R Bd4 Nc6 Ra2 Ba6 c8N Bd6 Bcb2 Nh4+ Kh1 g2+ Kh2 g3+ Kh3 Re8 h8Q Re5 Qc1 Kb3 Bbc3 d1R Re2 d2 Bf2 Ka2 Ne7 b4 Qh7 b3 Re3 b2 Qg7 Ka1 Ne2 g1B Nd4 g2 Rh7 Rf8 a8Q Rf6 Bd3 Bc4 Be4 Bf1 Qc2 Rbc1 Ba5 b1N Bd5 Nc3 Bg8 Nd5 Qb3 Rc5 Nb1 Rdc1 Bg3 d1N Qab7 Bb4 Qc8 N1c3 Bh2 Rd1 Ng6 Rd2 Nf8 Ra2 Nd7 Ra3 Nb8 Rh5 Bc7 Ra7 Ba5 Re5 Bg3 Bf2 Kh2 g1N Kh1 Rb5 Bh2 Rh5 Re6 Be3 Re7 Bc1 Re3 Nde7 Qc4 Rbe5 Qb3 Bbc5 Bb4 Ned5 Ba5 Nce2 Be1 Nec3 Bd2 Bb4 Qa3+
2K1bN2/2NBq1r1/1bn1Q3/3q3Q/k2RRR2/2p2rNB/pPb2n2/Bq1rn3 b - - 0 1 illegal: Other
4q3/KB1qr1kn/1Nb2NpQ/2P1rn2/NR1RBB2/1b5R/p3n2b/q3Qr2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 Kd3 a5 h4 f5 b4 Kf7 e4 a4 c4 f3 b6 a3 c5 f2 b7 g3 h5 a2 h6 g6 h7 f4 b5 g2 e5 f3 b6 Nh6 e6+ Kg7 e7 Bd7 e8B Nf5 Ne2 g1N Rh3 Bd6 Qe1 Bh2 Bf4 Bc6 Bg2 f1Q Na3 f2 Rd1 Ra7 Nc4 Nd7 b8R Nf6 Be4 Re7 b7 Qc8 Bf7 Rhe8 Nb6 Re5 Rd2 R8e7 Be6 Qe8 Bc8 Qg2 Nc3 f1R Nca4 Ne2 Rd1 Qg1 h8Q+ Kf7 Qhh4 Nh7 Qh6 Qh1 Kc2 d3+ Kb3 d4 Kb4 d2 Ka5 d3 Ka6 Qg1 Ka7 Kg8 Rc1 d1B Rc4 d2 Rb4 Bb3 Ra8 R7e6 b8N d1Q N8d7 Re7 Bb7 Kf7 Nf6 Qdd7 Rb8 Qgd4 Rd8 Qa1 Qg5 Kg7 Qh5 Qc7 Rdd4 Qcd7 Qh6+
1qn2rB1/Q3b2n/q1r1p3/2P2q2/R2R1N2/B1Kpbn2/B2N1rbk/3R1Q1N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 h5 c4 d5 b4 a5 g5 Kf5 c5 e6 g6 d3 g7 e3+ Kc3 d4+ Kb3 h3 b6 e2 b5 Kg4 f5 Kg3 f6 e1N b7 d2 f7 a4+ Kb2 h2 b6 d3 Bh3 a3+ Kc3 h4 Bf5 h3 Kb3 a2 Qe2 d1Q+ Kb4 Qa4+ Kc3 Ra6 Be4 Nc6 b8N Nf6 g8B Be7 f8Q Nf3 b7 Nh7 Qd1 Na7 Nd2 Rc6 Qf1 Qa6 Qf7 Qc7 Nd7 Qb8 Nf6 Bd7 Ng4 Nc8 Rb1 a1B+ Bb2 Be8 Bd5 Bd7 Ba2 Be8 Qg7 Bh5 Bf7 Rf8 Rd1 Bg6 Bg8 Be4 Qf7 Bd5 Nf2 Be4 Kb4 Bd5 Bc1 Bd4 Ba3 Be3 Kc3 Be4 Qe1 Bd5 Ne2+ Kg2 Rf1 h1R Nf4+ Kh2 Qg7 Rg1 Nh1 Rg2 Rg1 Rf2 Qf1 Nd4 Rg5 Bg2 Rd5 Nf3 Rd4 Qba7 b8R Bf6 Rb5 Qb8 Qe2 Bh4 Qa7 Be7 Nf1+ Kg1 Rbb4 h2 Nhg3 Qe5 Ra4 h1Q Rc1 Qh3 Rd1 Qhf5 Nd2+ Kh2 Qf1 Qb8 Nh1
k2Q1NQq/1R1Kb1qb/1p1pB1B1/P1R5/Nn3n2/1b1r2Rr/r4BNn/q7 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 h5 Kd3 e5 Kc4 b3 Kb5 d3 g4 d2 c4 b6 a4 b2 f4 e4 g5 h3 f6 e3 f5 e2 c5 e1N c6 h2 g6 h4 c7 d6 g7 Kd7 f7 h3 f6 Nh6 g8B Qe7 Ne2 Ng4 Qb3 d1R Rg1 h1Q Be3 h2 Nbc3 b1B Nf4 Rh3 Bd3 Nc6 Ng2 Nb4 Bg6 Ned3 Bf2 Nf4 Qa2 Bb7 c8R Rdd3 Rc5 Bd5 Qc4 Qe5 Ra2 Be7 f8N+ Kd8 f7 Qg7 Re2 Ra6 Re3 Ra7 Rg3 Ra8 Qa2 Bb3 Rc1 Qg1 Rc7 h1Q Rb7 Kc8 a5 Nh2 Na4+ B1c2 Ra7 Kb8 Rd7 Bb1 Rc5 Ra7 Rb7+ Ka8 Qb2 Qd1 Qf6 Qh5 Qe6 Qhh8 Qd5 B1c2 Qc4 Qha1 Qd5 Na2 Kc6 Nb4+ Kd7 Bb1 Rbc7+ Rb7 Qg5 Rb8 Rb7 Re8 Qh4 Bf6 Qg4 Re2 Qe6 Ra2 Qe7 Na6 Qd8+ Nb8+ Kc8 Rd4 Nd7 Nh5 f8Q Nf4 Bc2 Nc6 Be6 Be7 Qg8 Nb4 Bcf5 Be4 Nf8 Rd3 Bh7 Bf3 Be4 Bh5 B4f5 Bg6 Be4 Bh7 B4f5 Rh6 Bg6 Rh3 Kd7+
Nr5n/1r3b1P/QbB2BqQ/8/N1p1Q1kb/R5pq/1Rn2r1q/1K2nRN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Ke6 d4 a5 Kd2 g5 Kc2 c5 h4 f5 e5 f3 b6 f2 b5 a4 h5 c3 b7 c4 h6 g3 h7 f4 d5+ Kf5 d6 g2 e6 g4 e7 g3 e8R a3 b6 a2 d7 f3 Re6 Na6 b8N Ne7 b7 Kg4 Ba3 Nb4+ Kc1 c2 Reh6 Qb6 d8Q Be6 Qe2 Bf7 Qe5 Qg6 Qc5 Ra7 Nd7 Bg7 b8Q Rb7 Qcc7 Bd4 Qc6 Bb6 Qe5 Rg8 Kb2 c1N Qdc8 Nc2 Nc3 Re8 Be2 f1R Na4 Rf2 R6h2 Rd8 Qa8 Rdb8 Qa6 Nd3+ Kc3 Bc7 Bb2 Nde1 Ndb6 Bd8 Na8 Bb6 Nh3 g1Q Qee4+ Kh5 Rg2 Qh2 Ng1 Kg5 Kd2 Kh5 Kc1 Kg5 Rb1 a1B Bf6+ Kh5 Rb3 Be5 Qe3 Kg4 Ra3 Bf4 Qd2 Bg5 Kb1 Bh4 Qdd5 Qh6 Bd3 Ng6 Be4 Nh8 Qd2 Qg6 Qh6 Re2 Qe8 f2 Bc6 f1Q Rf2 Qfh3 Rf1 Q2g2 Rh2 Rf2 Qe7 Qh1 Rg2 Q1h2 Qee3 Rf3 Rd2 Rf2 Qd3 Ne3 Rb2 N3c2 Qe4+
2b1kBbb/1QNr4/n1Nr1n1n/3p3p/Q3N2K/2B1q1B1/3PR1r1/2b1Q1Rb b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c6 b6 Bh6 b5 Qf6 b7 Bg7 e3 Bf8 b6 Qd8 Bb5 cxb5 Kf2 h5 c4 f5 g4 a5 g5 d5 e4 f3 e5 f4 e6 a4 c5 a3 e7 a2 c6 h3 c7 h2 g6 b4 g7 b3 Ba3 b2 Qc2 Na6 b8B Nh6 g8Q Ra7 Qg4 Rg8 Nc3 b1B Qd1 Bh7 b7 Rg6 Rc1 a1B Ne4 Rd6 Ne2 Bg8 Rg1 h1B Qe1 Bh8 Nd4 Bfg7 Nc6 Bb2 Rc3 Bc1 Re3 Qd7 Bb2 Qe6 Bg7 Qe5 Bf8 Qc3 Re2 Qe3+ Kf1 f2 Qh4 Ra8 Ba7 Rd7 Bd4 Ra7 b8B Rb7 Na7 Rb6 Bc3 Rbd6 Nc6 Qb6 Re3 Qb3 Ke2 f1N Kf2 f3 Re2 Ne3 Kg3 f2 Qf4 f1R Kh4 Rf2 Qg4 Bb7 Qf4 Rg2 c8Q+ Rd8 Qc7 Bc8 Qb7 Neg4 Bc7 Nf6 Qg4 Kf7 e8N R8d7 Bb8 Qb6 Nc7 Qd4 Nf2 Qe3 Qa4 Nh7 Ne4 Nf6 Na8 Ke8 Bc7 Re6 Bg3 Red6 Nc7+
rn3b2/4B2R/N2p2Q1/PK2NnN1/4qQ2/6Bb/3krbp1/bQn1bBRr b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 c4 Kf6 a4 Kg5 h4+ Kf4 h5 b5 f3 e5 a5 g5 c6 e3+ Kd3 d6 c7 g3 c5 g4 h6 g2 h7 e4+ Kd4 g3 c6 b3 Kc3 b2 Kb4 Bh3 c8Q Qh4 c7 Ne7 Nd2 b1R+ Nb3 Rb2 Qe8 Re2 c8Q Nf5 Qg6 Qe7 Nc5 Qe6 Ka3 b4+ Ka4 b3 Kb5 b2 Na6 b1N Qc4 Nd2 Qdb3 Qe7 Qb1 Nb3 Bd2 Nc1 Be1 Rc2 Qa4 e2 Rh2 Ke3 f4 Qh4 Nf3 g1B Ng5 g2 Bg3 e1B Rh1 Bgf2 Rg1 Ne7 f5 Kd2 f6 e3 f7 Nf5 Qf4 Qg4 Ra4 Qf3 Rc4 Qe4 Rc7 Ra2 Qe5 e2 Qf4+ Kd1 Rb7 Bc3 Ra7 e1B Rd7 Bfg7 f8B Ba1 Be7 Re2 Rb7 Bf8 Rc7 Rg8 h8N Rg7 Nhf7 Rh7 Qf3 Kd2 Ne5 Bg4 Rb7 Rh1 Qf4+ Ne3 Bf6 Bc8 Rh7 Bh3 Qh4 Nf5 Be7 Nc6 Qg4 Nb8 Qf4+
BN3B2/KN2n1n1/pQq1b1k1/3rQB1n/R1QrR1P1/1b1R2p1/5n1n/3rb3 b - - 0 1 illegal: No possible last move
K1k4b/2rpqr2/2RR4/2N1P2n/bp5B/Q1nbrb2/R1BQ4/N1Q1n1bN b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 f5 a4 b5 e4 g5 h4 b3 c4 b4 h6 d3 h5 f3 Ke3 f4+ Kd4 g4 e5 g3 h7 g2 c5 d2 c6 b2 h6 f2 a5 f3 a6 Qa5 a7 Kd8 c7+ Ke8 Ra2 Bd6 Ne2 g1B Ng3 Na6 Na3 b1N Bd3 Nc5 Bc2 Bb7 c8N Kd8 Nb6 Nc3 Na4 Nd3 Nc5 Rc8 a8Q Bf8 Qf1 d1B Bg5+ Be7 Bh4 Nf6 Qg2 Rg8 h8Q Ne1 h7 f1R+ Kc4 Be4 Qd2 f2 Qg7 Bg2 h8R Nh5 Qgg5 Bf6 Rh6 Bgf3 Rh2 Qb6 Nh1 Qd6 Qc1 Qe7 Qgd2 Bg7 Rc6 Bh8 Rg2 Rg7 Rgg6 Rf7 Qa4 Rc7 Rgd6 Kc8 Qb3 Ne4 Kb5 Nc3+ Ka6 Qg5 Qbb2 Qe7 Bh7 Ba4 Nc2 Nd3 Kb6 Re1 Na1 f1B Qa3 Re3 Bg6 Ne1 Be4 Ba6 Bc2 Bb7 Ka7 Ba6+ Ka8 Bf1 Bf2 Bd3 Bh4
4n1Q1/rBPqn1Rb/pN5r/4Q2p/n6n/1nBQb1KN/1Nr5/3RBkb1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Ke6 g4 Ke5 c5 h5 c6 d5 c7 e3 f4+ Ke4 f5 e5 b6 d3 b5 a6 g5 h3 f6 d2+ Ke2 h2 g6 d4 g7 Nd7 f7 Ne7 g8Q Nc5 b7 Nb3 b8Q Ra7 b6 Bh6 f8N Bf5 b7 Qd7 Ra5 Bh7 Bh3 d3+ Kf1 e2+ Kf2 e1B+ Kg2 Ke3 Qa8 e4 b8B Bf2 Ne2 Bg1 Qf1 Bf4 Bb2 d1N Qad5 d2 Qdg5 Nc3 Na3 d1R Qe5 Na4 Bc3 Rc1 Nc4+ Kd3 Rb5 Bfe3 Kg3 Rc2 Rb6 Bf5 Rc6 Rh6 Bg2 Bh7 Re6 Bb6 Rg6 e3 Bb7 Bc5 Nd4+ e2 Nde6 Bce3 Qh3 e1N Ng5 Ke2 Rg7 Nf3 Nb2 Nh4 Be1 Qd1 Nd7 Qd3 Nb6 Qd7 Qhe6 Kf1 Q6d6 Nd5 Qg6 Nf6 Nh3 Ne8 Qd3+ Re2 Rg4 Ra8 Qdg6 Rd2 Bf2 Rc2 Ba7 Ke2 Nc8 Qd2 Bd4 Ra7 Bc3 Qd7 Nb6 Nf5+ Kg2 Ne7 Bfe1 Bf2 Rg1 h1N Rd4 Ng3 Rd6 Ngf5 Rd1 Nh4+ Kh2 Nac5 Qgf5 Na4 Rg7 Kf1 Qg6 Bg1+ Kg3 Bc1 Qge4 Bce3 Qd3+
r3R2r/2pnn2B/n1b1N2R/K3N3/B1qRQ1b1/1r5b/3pb1PQ/b2kQ1B1 b - - 0 1 illegal: No proof kernel
3K4/p1BBP2N/1nr3nr/3nB1N1/5Q1p/Q2bk1bR/1nb5/qQnRr2R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 d5 g4 h5 c4 f5 e4 d3 b4 d2 c5 d4 b6 h3 b7 h4 b5 f3 c6 f2 c7 d3 b6 h2 Nc3 f4 Ra3 f3 Bb2 Bf5 c8R Ne7 Bh3 f1R Qb1 d1N Nd5 d2 Nf6 f2 Rc1 Ne3 Rd1 Nd7+ Kd6 Kf4 b8B N3d5 g5 Rh6 e5 Bc2 b7 Qa5 e6 N7b6 g6 Re1 g7 f1B g8Q Bfd3 Nf3 Ke3 Bc7 Rc8 b8Q Ng6+ e7 Bg7 Rb3 Qa1 Nh7 Be5+ Kc6 Bg3 Be5 Nf6 Nfg5 Nfd5 Rg1 h1N Bd7 Nf2 Rh1 Nh3 Qe6 Ng1 Qd6 Ne2 Qa3 Nc1 Kb7 Rf8 Rc3 Rf6 Qf8 Rc6 Qf5 Na4 Kc8 Nab6+ Kd8 Na2 Rc1 d1N Qf6 Nb2 Rd1 Nc1 Qf4+ Ke2 Bg7 Bh2 Qf5 Bb5 Rh3 Bg3 Bc3 Bbd3 B3e5 Ke3 Qf4+
2N2r2/6Q1/b5Br/K3b3/1RN3Pr/Q1NRQpRb/r3p1rq/Bnq2nk1 b - - 0 1 illegal: No proof kernel
1nbr2Nn/3NRb2/2kB2B1/3r2Rn/K1b1pPp1/1Q3q2/2RN4/b1Q2qQb b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 e5 c4 b5 Kc2 d5 Kb3 Kd7 a4 g5 h4 e4 f4 d3 a5 g3 c5 d4 f6 g2 h5 g4 f7 d2 h6 d3 h7 Kc6 a6 Ne7 a7 Ng6 Qe1 Bg7 Ra2 d1Q+ Rc2 d2 f8R Ba1 Nf3 g1N Rh5 Ne2 Rg5 Ng3 Ba3 Nh5 Bc4 Qd3+ Nc3 Qf1 Bf7 Qde2 Nd5 d1B Nd2 Qef3+ Qe3 Rg8 Re8 Nh8 Re7 Rd8 Nf6 Rd5 Ng8 Be2 Bg6 Bd1 Bb2 Be2 Be5 Bd1 Ka2 b3+ Ka3 b2 Qb3 b1B Bd6 b4+ Ka4 Ba2 Rb7 Nf7 h8Q Be2 Qd4 Nh8 Re7 Bd1 Qbe3 Bc4 Qb3 Bde2 Qg1 Bd1 Qc3 b3 Qce3 b2 Qd3 Nd7 Qb3 Rb8 a8N b1B Nb6 Ba2 Ka5 Ra8+ Kb4 Nb8 Nd7 Q3h3 Qb1 Bf3 Qb3 B8a6 Ka4 Bh1 Nh6 Qhf3 Ng8 Bc8+ Kb4 Kb7 c6+ Ka6 c7 Kb7 Qf2 Kc6 Qg2 Raa5 Qg1 Rab5+ Ka4 Rd4 Nf8 Rbd5 Nd7 Rc5 Kb4 Be6+ Qc4 Q1f2 Ndf6 Kb6 Rb2 Bf7 Be5 Rd8 Bd6 Bb7 c8Q Rd5 Qd3 Ba6 Qcc1 B2c4 Nd7+ Kc6 Rc2 Bc8 Qb3 Qf1 Ka4
1b1k1b2/R5r1/Knq2NB1/QpQr1p1r/rP1B1n2/5R2/1BNR2n1/N1q3r1 b - - 0 1 legal: proof: f4 c5 h4 g5 a4 gxh4 d4 cxd4 f5 b6 a5 Bb7 a6 e6 axb7 exf5 Ra4 f4 Ra5 Qe7 Ra1 Qd8 Kd2 h5 Kd3 d5 g4 a5 c4 f5 e4 b5 b4 h3 g5 h2 c5 h4 c6 a4 g6 h3 c7 f3 c8R a3 g7 f2 e5 a2 e6 Rh5 e7 Nd7 b8B Nb6 Bg2 f1Q+ Ne2 Nf6 g8N Ra4 Rc2 Qd7 Nd2 Qc6 Ba7 Kd7 Rg1 h1R Bb2 h2 e8Q+ Kc7 Qe3 Kd8 Qb1 Qc1 Rf1 Rg1 Rf3 h1R Nb3 R1h3 Rd2 Rg3 Qc2 Rg4 Qc5 Rg7 Rb1 a1B Qe6 Nh7 Nf6 Ng5 Qf7 Ne6 Bh3 Rh8 Bg4 Rh3 Bh5 Rhh1 Bg6 Rh5 Ba3 Bb2 Ra1 Bc3 Rda2 Be1 Rc2 Bg3 Bb2 Bb8 Qb7 Qb1 Qa8 Nf4+ Kd2 d3 Kc3 d2 Kd4 d1N Rd2 Qc1 Ra3 Ne3 Na1 Nc8 Bb6+ Rc7 Qa5 Neg2 Ba7 Nb6 Nc3 Ne3 Nd1 Neg2 Ne3 Rg7 Nec2 Rc7 Ke5 d4 Ra2 d3 Kd4 Qe8 Qc3 Re7 Kc5 Rd7+ Kc6 Rd5+ Kb7 Qc6+ Ka6 Rd7 Rdf2 d2 Qc5 d1R Raa3 R1d5 Rd2 Rdh7 Rae3 Rd3 Re7 Rg7 Rc7 Nc4+ Bb6 Rd5 Ra7+ Kc8 Qd6 Re5 Qd4 Rd5 Rc7+ Kd8 Ra7+ Qc7 Bc5 Nb6 Qc3 Qd6 Bd4 Qc6 Qc5
NQQr4/N5nK/4R1rN/p3nb2/B1p3q1/BB1k1r2/Pb2brq1/1R1r2Q1 b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 b5 d4 h5 g4 a5 g5 f5+ Ke5 f3 e4 f2 g6 f4 g7 b4 Bd2 b3 Be1 f3 Be2 f1B Nc3 f2 Na4 h3 Nf3 h2 Nb6 b2 Rb1 h4 Bb4 h3 Ba3 Nf6 g8N Ne8 Nh6 Ra6 Na8 Nd7+ Kf5 Qh4 Kg6 Ng7 e5 Kd5+ c6 Ke4 e6 Bc5 e7 Rd8 e8B Qg4+ Kh7 Ne5 c7 Rg6 d5 Bf5 c8Q Bd4 Rg1 h1Q d6 h2 Ba4 Qhg2 d7 h1R Bb3 Bc3 Nd4 Rh3 Nb5 Rf3 Na7 Ke3 Bd3 Be2 Re1 f1R Bdc2 R1f2 Ba4 Bd4 Bcb3 Bc3 Qc1+ Kd3 Qb8 Bd1 Re4 Be2 Qg1 Bd4 Ra1 b1R Qc8 Nf7 Re6 Rd1 Rb1 Ne5 Qb8 Rf8 d8Q Re8 Qd5 Rd8 Qc5 Bb2 Qcc8
3NR2b/8/Bpb1Qq2/3RQpk1/1q2P2b/rQ1Nq1b1/n1RNn2b/1K2Br2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Ke7 h4 Kf6 d4 c5 Kd2 g5 Kc2 b6 e4 f3 h5 f2 a5 c4 d6 c3 h6 g3 d7 b3+ Kd3 b2 Kc2 g4 d5 g2 d6 g3 a6 Nc6 h7 Nge7 a7 Nd4+ Kd3 c2 Kd2 Bb7 Nc3 b1Q Ra3 Ne2 Rb3 Kg5 Rb4 f5 Nd5 Nc6 Rc4 Be7 Nf4 Nb4 Nd3 Na2 Rh6 Qf8 d8Q Bc6 d7 Qf6 Qe8 Qb4+ Rc3 Rg8 d8N Rg6 Ba3 c1B+ Kc2 Bb2 h8Q Ba1 Rh7 Rh6 Rc5 Rh1 Rh2 Qf8 Bc1+ Nf4 Qhh5+ Kf6 Be2 f1Q Nb2 Qfe1 Nf3 g1B Rd5 g2 Bd2 Bf2 Kb1 g1B Qh8+ Qg7 Bd3 Qe3 Qb3 Bg3 Qhg8 Qf8 Be1 Qf7 Rc2 B1h2 Nd2 Ne2 Bc4 Rf1 Nd3 Bae5 Qh8+ Kg6 Qd7 Beh4 Qe6+ Kg5 Qg7+ Qg6 Qc7 Bh8 Qce5 Rb8 a8R Rb7 Ra7 Qf6 Bb5 Rb8 Re7 Ra8 Re8 Ra3 Ba6
2R1BQN1/4b3/np2r1Q1/N1qpk1B1/bbb3r1/5rbP/2BR2q1/K1n1R2Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 f4 Kf6 a4 d5 c4 g5 Kc2 e5 Kb2 e4 c5 g3 h3 g2 c6 e3 c7 b3 a5 e2 a6 e1B a7 b6 Bc4 g4 Bf1 d3 Ra5 g3 Nf3 g1Q Ra2 g2 Nc3 d2 Ne2 Qd6 Ned4 Rh6 Ng5 Ba6 c8R Bc4 Nf7 Be7 Bd3 Bg3 Bc2 Qc5 Nc6 Na6 Na5 Qgf2 Qe1 g1B Ka1 d1B Bd2 Rg6 Nh6 Qg2 Qe4 B1f2 Re1 Rg4 Rb2 Rb8 a8B Bd4 Qf3 Bc3 Bc6 Bb4 Be8 Rb7 Qf1 Rc7 Ra2 Rc6 Qh1 Re6 Bc1 Bf8 Be3 Ne7 Bd2 Nc6 Ng8+ Kg7 Rb2 Ne5 Be3 Be7 f6+ Kh8 f5 Nd3 f7 Kg7 Bg5 Nc1 Bb1 Bc2 f6+ Kg6 f8Q+ Kf5 Ba2 Bd1 f7 Bc2 Qh6 Bd1 Rf1+ Ke5 f8Q Bc2 Rg1 Bd1 Rd2 b2+ Kb1 Ba4 Bb3 Rd6 Qg6 Re6 Kc2 b1R Rf1 Ra1 Kb2 Ra3 Bc2 Rc3 Ka1 Rf3 Re1+
2B5/N3nRQ1/PBQ1NKnR/2p1B2k/2p2b2/rr5r/2qQr1q1/Nb1qr3 b - - 0 1 illegal: No possible last move, all moves rejected
1n2r1R1/1K1n1rPR/3k1pN1/1B1rQ1p1/b2Brb1Q/3B1q2/2N2Nq1/q1Q1r3 b - - 0 1 illegal: No proof kernel
2bb4/BR1Np1Qn/K1Bp2Rr/2P4R/2Q3r1/n1r1q3/1bq3B1/1NN1k1rr b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 a5 c4 h5 b4 h3 b6 h2 f5+ Kg5 c5 Kf4 b7 Kg3 f6 Kf2 g5 e3+ Kd3 e2 Kc4 e1B Kb5 h4 g6 d3 f7 d2 g7 a4 Bb2 a3 Ne2 a2 Nec3 h3 Bd3 Ra4 Qc2 Na6 b8Q Rh6 Qe5 Nf6 g8B Bg7 f8N Nh7 Ne2 d1Q Qc4 Qc2 Nc1 d6 Be4 Qd7+ Bc6 Qe6 Nd7 Nc7+ Kb6 Bh8 Qg7 Nb5 Bc3 Qe3 Bgd5 Na3 b5 Rb4 Rg1 h1R Rg6 h2 Bg2 Rg1 Bd2 Ra4 Ba5 h1R Ka7 Bc3 b6 Ke1 b7 Rb4 b8R Bb2 Qf8 Bhc3 Rb7 Rb3 Bb6 Ba5 Ka6 Rc3 Ba7 Bd8 Qg7 R1h4 Nd2 Rg4 Rb1 Ba1 Rb4 Bb2 Nb1 a1R Qcf7 Rg5 Rh4 Rg4 Rh5 Rh1 Nb3 Ke2 N1d2 Rac1 Nb1 Rcg1 Qc4+ Ke1 Nc1
2K5/k1BP1n2/1rbq2rQ/1BbQ1R1Q/3B1pN1/N1b3qN/r1p1R3/bn5b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 e4 c5 g4 Kc7 d4 Kb7 b4 a4 b6 c3 b5 f3 d5 c4 d6 f4 g5 c2 g6 h3 g7 a3 Nd2 h2 Bd3 c3 Nc4 f2 Qf3 f1Q Be2 h4 Be3 c1B Qh5 c2 Nh3 a2 Na3 Qf3 Bd4 Ne7 g8Q Nd5 Re1 Nd7+ Ke6 h1R e5 Bd2 Qgg5 Qg3 Qgh6 Kb8 b7 Rg8 Bf1 Ra4 Re2 Nc3 Rb1 Qb6 Rb2 Ka7 b8B+ Kb7 Rb3 a1B Bc7 Nb1 Rbe3 Qc5 b6 Bdc3 Re4 Ka8 b7+ Ka7 b8N Bb7 Nc6+ Ka8 R4e3 Rb4 Qf3 Rb6 Qd5 Qb4 Rd2 Qc5 Bb5 Rd1 Ree2 Rg6+ Kf7 Rg1 e6 Ne5+ Ke8 Nf7 d7 Qd6 Ne5 Ka7 e7 Bc6 Ng4 Re1 Re5 Rh1 Rde2 Re1 Ng1 h3 Rf5 h2 Nh3 h1B Bd8 Ne5 Bc7 Rf1 Kd8 Nf7+ Kc8 Rd1 Bf6 Rd4 e8Q Ra4 Bd4 Be7 Nc4 Ra2 Na3 Bf6 Bf2 Bfd4 Qee5 Bc5 Bd4 Qe7 Qeh8 Qf6 Qh5 Qd6 Q8h6
Qq1q1R2/q1Pp4/1B3b1K/2r1Br1Q/nn1Rq3/p2N1B1b/3N4/kQqR1r2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 g4 Ke5 e4 a5 b4 h5 c5 f5 g5 f3 g6 f4 b6 f2 g7 a4 b5 d3 b7 Kd4 e5 f3 e6 a3 b6 h3 e7 h4 e8R h2 c6 h3 c7 Ra5 Qe2 Rhh5 Re7 Raf5 Nc3 Nc6 b8B Ba6 b7 Nf6 g8Q Nb4 Qb3 Bg7 Qa4 Nd5 Bb2 Nb6 Rd1 Bf6 Bg2 f1R Rf7 f2 Ba7 Kc4 Qc2 Na4 Qb1 Kb3 Ke3 d2 b8Q Bc4 Bf3 Be6 Qc8 Rc5 Na2 Rhf5 Qa8 Qb8 Re1 d1Q Rf8 Qc1+ Ke4 Qg5 Rd1 Qg8 Bb6 Qh8 Rf7 Qhd8 Rf8 Qa7 Rd4 Qdb8 Nc3 Qd8 Nd5 Qdb8 Qbc2+ Ka2 Nf4 Qd8 Nd3 Qab8 Bc1+ Ka1 Bf4 Qa7 Be5 Qdb8 Bh5 Qd8 Nf3 Qdb8 Rg1 h1Q Ke3 h2 Nd2 Qc6 Bf3 h1Q Qb3 Qd6 Qc2 Qe7 Ke4 Qed8 Qb3 Rb1 Rd1 f1Q Qh2 Qfg1 Qh5 Qg5 Nf1 Qc1 Nd2 Rg5 Kf4 Rf5+ Kg4 Qe1 Qg5 Qe4+ Kh5 Rf4 Qg6 Bh3 Kh6 Rf5 Qh5 Qc3 Rg1 Rf1 Rh1 Qc1 Rg1 Rf2 Rd1 Rf1 Qb1+
nnRq1B1Q/2p2bq1/k1B1bP2/1r1NQ3/6pN/r1NR2Q1/2b1bK1b/B1q5 b - - 0 1 illegal: No proof kernel
2Q4b/Q1pRrnbp/4N1bR/q1P4r/Bb3N2/4nKn1/1q2B3/1bNB1Rk1 b - - 0 1 legal: proof: e4 b5 d4 g5 a4 e5 axb5 f6 h4 gxh4 Bf4 exd4 e5 Nh6 e6 Ng8 Be5 fxe5 Ke2 Ke7 c4 Kf6 g4 Kg5 b4 Kf4 g5 a5 f3 Kg3 f4 d5 e7 e4 e8B h3 f5 d3+ Ke3 d2 f6 d4+ Ke2 e3 g6 a4 f7 a3 g7 h2 b6 a2 b5 Qf6 b7 Nd7 b8Q Ne7 g8B Ra5 b6 Nd5 b7 Bg7 f8N Ne5 Nf3 Bf5 Bb5 Bg6 Be8 Nf7 Qa4 Rb5 Qaa7 d1B+ Ke1 d3 Ng1 e2 Nc3 Bb3 Nh3 Ne3 Ne6 Bc2 Nhf4 Bb1 Qc8 Rh5 b8R Qf5 Kd2 Kf2 Ba4 Qa5 c5 e1B+ Kc1 Ng4 Nce2 Bb4 Kd1 d2 Rb5 Nge5 Rb6 Nc4 Rg1 h1N Nc1 Ng3 Be2 Nfd6 Rh1 Nf7 Rh2+ Kg1 Rd6 Nd8 Bf7 Re8 Rd7 Re7 Rf2 Bh8 Be8 Nf7 Bb3 Bbf5 Rb1 a1B Bc2 Bag7 Rb3 Nh1 Rh3 Ng3 Ba4 Bb1 Bb3 Rg5 Rh6 Rd5 Rd8 Rg5 Bea4 Rh5 Rd7 Nf5 Bg4 Nce3+ Ke2 Ng3+ Kf3 d1Q+ Re2 Qf1+ Rf2 Qfb5 Bd1 Re5 Bf5 Qb8 Bd3 Rh5 B3e2 Qbb6 Nd8 Qf6 Ne6 Qb2 Rf1+
1Q5Q/1p1nr3/1np1N1KQ/nq1B3B/5NRq/b1P2Bnb/q1R1Nr1k/3n4 b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Bf4 g5 Bg3 hxg3 Qd5 g4 Qd3 Qh4 Qd1 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 d5 h4 d4 a4 c6 e4 d3 h5 b3 a5 d2 a6 b2 a7 g2 h6 g3 h7 Ba3 Rh4 Nf6 Kg5 Nfd7+ Kg6 Re8 h8Q Re7 f4 Nb6 Rg4 N8d7 Ne2 g1N Qc1 d1N Ra2 g2 Nbc3 b1N Nd5 Nd2 c3 Nb3 Rc2 Na5 Qe3 Rb8 a8Q Qg8 Qa7 Ra8 Qb8 Ra7 Nc1 Ne2 Qeh3 g1Q Bg2 Qc5 Q3h6 Qd8 Bf3 Ng3 Ne2 Qb5 Kh7+ Kf7 f5 g5 f6 Ke6+ Kg6 Ra8 f7 Ra7 Rf4 g4 Qh4 Nf5 Q4h6 g3 Rg4 g2 Q6g7 g1Q Qgh6 Nf6 Ndf4+ Kd7 Q6g7 Ng3 Qgh6 Qh2 f8N+ Ke8 Rh4 Bh3 e6 Nfd7 e5 Ra8 Rg4 Qg2 Ng1 Qge2 Bd5 Qec4 Nge2 Qa2 Qd6 Rc8 Qb8 Rc7 Bf3 Rf7 e7 Rf5 Kh7 Kf7 e8B+ Ke7 e6 Kd6 Kg7 Ke5 Bh5 Qh4 e7 Rf6 e8B Rf5 Bd5 Rf6 N4e6 Rf2 Ng6+ Kf5 Ngf4 Ke5 Bb3 Ke4 Kg6 Kf3 Nd5 Kg2 Ndf4+ Kh2 Bd5 Rc8 Bf7 Re8 Bf3 Re7 Nc7 Nh1 B7d5 Ng3 Nce6
q3B1Bk/p1rN1bRq/4n2n/2n3Q1/6nQ/2bp3r/KP1R1BN1/b2n1N1R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Kd2 Kf7 f4 Kg7 c4 e5 Kc2 d5 g4 h5 c5 h3 g5 h4 c6 h2 c7 e4 g6 h3 Ra3 d3+ Kc3 d2 Be2 e3 Nf3 Nc6 Bb5 e2 Qe1 Be6 c8Q Nh6 Nh4 Nd4 Qc5 Bf7 Ng2 Rc8 Be8 Rc7 Qh4 e1N f6+ Kg8 f5 d1N+ Kb4 Qa8 g7 Ne6 Nd2 d4 Rg3 a3 Kb3 a2 Nf1 a1B Be3 Nd3 Bf2 Be7 Qb5 Ndc5+ Ka2 d3 Qa5 Bd6 Qd2 Kh7 Qdg5 Be5 Rg4 Bc3 Rg3 Bg6 f7 Bh5 f8R Bf7 Rg1 h1N f6 h2 Rg4 Ng3 Rh1 Nf5 Rg3 Nfe3 Rg8 Bh5 f7 Neg4 Rf8 Bg6 g8B+ Kg7 Re3 Rh7 Re2 Kh8 Rd2 Bh5 Bd7 Bg6 Rd8 Bh5 f8N Bg6 Be8 Bf7 Rg1 h1Q Rd7 Qh2 Rh1 Nf5 Qg3 Rh3 Q3h4+ Nfh6 Re7 Qf4 Nd7 Qf5 Bg3 Qh7 Bf2 Bh5 Rg7 Bg6 Be1 Bf7 Bf2
3Nq2N/pRKQr2q/qR1Qb3/2p2QB1/1b3r2/b3n3/NPBb2nb/1B2k3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 h4 Ke6 d4 Kf5 d5 Ke4 b6 f5 e3 g5 b7 f3 Kg3 f4+ Kf2 c3 d6 c2 h5 g3+ Ke1 f2+ Ke2 g4 d7 f3+ Kd2 g2 Kc3 g3 Kc4 Bb4 Kb5 Ne7 h6 Ng6 h7 Na6 Kc6 Qe8 b8Q Rf8 h8Q Rf4 Qf6 Nh4 Be2 f1Q Nh3 g1B Bc4 f2 Bb3 Qe2 Nc3+ Kf3 e4 f1Q e5 g2 e6 Bh2 e7 g1B Na2 Ng2 Ng5+ Kf2 Qf5 Q2h5 Nf7 Qh7 Nh8 Qe2 Bd2 c1B Bc2 Qd3 Qdg4 Kf1 Be3 Ke1 Qb6 Qf1 Qbc5 Rb8 Qd6 Rb7 Bb1 Bcd2 Qg7 Qeg8 d8N Be6 e8B Qe2 Bh5 Qe8+ Qgd7 Ba3 Bg6 Nb4+ Kc5 Nc2+ Kc6 Re4 Bf4 Nce3 Bg5 Rf4 Bc2+ Nd1 Bb1 Qf1 Bc2 Bgc5 Rc1 Bcb4 Bb1 Bg3 Rh6 Bh2 Rc5 Nde3 Rb5 Rb8 Bc2 Ra8 Kb7 c5 Kc7 Rb8 Rb7 Qa6 Bb1 Qee7 Ndf7 Re8 Nd8 Qf8 Qg4 Qfg8 Bgc2 Re7 Qf5 Qe8 Qdd3 Bf7 Rhb6 Be6 Qd6
kb1nR2b/1B1bq1PK/3N1B2/N1rQ4/n3pQpR/b1RQ4/b2b1B1r/7b b - - 0 1 illegal: No possible last move, all moves rejected
2nb2b1/2R1p3/1n1nRnnk/3qPrp1/n2Nr3/1B3Q2/1B1RQB1N/2K1N2n b - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 Kf7 b4 Kg6 e4 h5 c4 a5 f4 d5 c5 d3 b6 h2 b7 d4 b5 h4 f5+ Kh6 c6 g5 f6 a4 c7 a3 f7 a2 b6 h3 Nf3 Qd5 Ne1 Nd7 b8N Ra5 b7 Ngf6 Qf3 Nb6 Rg1 h1N Na3 h2 Be2 Ng3 Qh1 Bg7 f8R Ngh5 Rg2 Nf4 Nac2 Ng6 Ba3 Be6 c8Q Bg8 Qd7 Nc8 Rb1 a1N Bb2 Nb3+ Kd1 d2 Rc1 Nc5 Qg4 Na4 Bc4 Nab6 Nd7 Rc5 Qf1 h1N b8B Ra5 Ne5 Ra4 Ke2 d1N Kd2 d3 Bb3 Ne3 Qfe2 Nf5 Ba7 Nfd6 N5f3 Rh7 Kd1 d2 Nh2 Bh8 Qef3 Rf7 Nd4 Bg7 Kc2 d1N Rd2 Nc3 Qgg2 Rb4 Qge2 Nca4 Rd8 Nfe8 Rd7 Be5 Rc7 Rf5 Ra1 Nf6 Kc1 Bf4 e5 Be3 Ne6 Re4 Nd4 Nc5 Ra6 Nca4 Nb5 Nbd7 Rac6 Bb6 Nd4 Ba5 Rb7 Bd8 Rbc7 Nb5 Bc5 Ndb6 Re6 Nbd6 Ndc2 Nf7 Bf2 Nfd6 Nd4
3Q3N/qQn3qn/2B2r1b/r1bN2r1/1nkR3P/2p1R1Q1/bp3RK1/2B2N1n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 Kd6 a4 Kc5 e4 b5 e5 f5 e6 g5 d6 g3+ Kf3 g4+ Kg2 b3 d7 b4 e7 b2 e8Q b3 a5 Bh6 d3 Qf6 d8N Be6 a6 Qg7 a7 Nf6 Qa4 Rg8 Qd7 Na6 Ra3 Nb4 Ra4 Nh7 Ne2 f3+ Kg1 f2+ Kg2 f4 d4+ Kc4 d5 c5 Rh3 f3+ Kh1 g2+ Kh2 g1B+ Kh1 g3 Bg2 f1R d6 f2 Nbc3 b1N Qc7 b2 d7 Na3 Qe1 Nb5 Qb7 Nc7 Bc6 Bf7 Kg2 Be6 Kf3 g2 Ng3 Kd4 Ra3 c4 Qc8 Qf8+ Nf7 Rg5 d8R+ Kc5 Qb7 Qg7 Nh8 Bf7 Nd1 Bg8 Rad3 c3 Rf8 Ba2 Rd2 Kc4 Rd7 Re8 a8Q Ree5 Qd8 Ra5 Qe5 Re1 Rd3 f1N Qed6 Re6 Ne3+ Kb3 Rf4 Rf6 Nd5 Be3 Rd2 g1Q Rd3 Ba7 Rh2 Qd4 Re3 Kc4 Rf2 Bb6 Kg2 Ba7 Rg4 Bb6 Ne2 Ng3 Qe5 Nh1 Ng3 Ba7 Nf1 Bb6 Qh2 Ba7 Nf4 Qb6 Qg3 Qa6 Nd5+ Bd4 Rge4 Qa7 Re5 Bc5 Rd3 Rf4 Ree3 Rf6 Rd4+
r3n1r1/k1b2rRR/6B1/qQN4K/3RbqP1/4Bn2/3rNpp1/NB2nq1Q b - - 0 1 illegal: No proof kernel
1Q4r1/1n1k1N2/Qrb3b1/1B1Qrq1R/Rb1P4/N1Bp3q/1B1pq1qn/K4R2 b - - 0 1 illegal: No proof kernel
b4brn/1r1q1Rbb/1qq5/BNQ5/1n1p4/2B5/1R1NPKp1/N1krRQ1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 c4 Ke7 b4 Ke6 h4 Ke5 h5 Ke4 h6 d5 c5 f5 b6 g5 b7 a5 h7 d3 b5 a4 c6 a3 c7 f3 b6 a2 Qc2 g3 Bh3 f2+ Kf1 g4 Bb2 Ke3 Qc3 f4 Qc4 d2 Nf3 d1R+ Kg2 f1B+ Kg1 g2 Ne5 f3 Na3 Kd2 Rh2 Na6 b8B Ne7 b7 Bf5 c8Q Nb4 Kf2 Ra7 Bc7 Ng6 b8R Rg8 h8N Qd7 Qc5 Rb7 Nhf7 Nh8 Nd6 Bh7 Nc2 Qc6 Rc1 a1B Qf5 Qd7 Ba5 Qc6 Kg3 g1Q+ Bg2 f2 Nb5 Qd7 Bd4 Qh1 Bf3 Bg2 Rb1 Bb2 Na1 f1Q Qf7 Qfg1 Nc4+ Ke1 Nd2 Bc3 Be3 Bcg7 Bd4 Qe3 Bb2 d4 Rh5 Qee6 Bc3 Qb6 Rf5 Qhh6 Bd5 Be4 Rf3 Qhc6 Kg2 g3 Kg1 Bef5 Rf4 Bd3 Bh1 Bde4 Qff5 Bf3 Qh3 Bd5 Rf7 g2 Qf3 Rc1 Rb2 Kd1 Kf2 Rb1 Nab3 Ra1 Rb1+ Kc2 Re1 Rd1 Na1+ Kc1 Kg1 Qce6 Qf1 Qec6 Kf2 Rc7 Ra8 Qcd6 Ra7 Ba8 Ra6 Qb7 Bb6 Q6c6 Ra2 Qa6 Ba5 Rb7 Rb2 Qa7 Na3 Qab6 Nb5
4B1Q1/2b1QK2/1n1rNR2/1r5k/2Np1B1n/1NqPq3/rb1pB1R1/bRbn4 b - - 0 1 illegal: No proof kernel
2B2QQ1/1Q1rb1Rq/b3RN1b/Br1q4/nP1p4/rk2NNR1/1npKn3/1b6 b - - 0 1 illegal: No proof kernel
K3nRn1/n7/4BB1N/1kq1p1b1/1b2R2Q/r1qr1b2/pRP2Qq1/q3NB1N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 e5 b4 d5 g4 Kd7 b6 Kc6 b7 h5 g5 h3 g6 h2 g7 d3 Kc3 a4 f5 e3 f6 h4 f7 e2 Nh3 e1B+ Qd2 d4+ Kc4 a3 Be2 a2 Nf2 h3 Bf1 Na6 b8Q Be7 f8R Bb7 b5+ Kb6 Qe3 B1b4 Nd2 Qd6 Nf3 d2 Ne1 d1N Rb1 Nc3 Rb2 Nc7 Qd8 Bf3 Qe2 d3 Bg5 d2 Bf6 Ka5 b6 d1Q b7 Nb5 b8N Na7 Nd7 Q1d2 Rg1 h1Q Rg4 h2 Re4 Qg2 Nh1 Rh3 Qf2 Nh6 g8B Qc5+ Kb3 Rg3 Bf7 Ng8 Be6 Qb6 Kc4 Ne8 Rg4 Qe3 Re4 Qc3+ Kd5 Qbc7 Nb6 Rh3 Nc4+ Kb5 Ne3+ Kb6 Bh8 Bg5 Bf6 Ka5 Ng4 Qb6 Ng3 h1Q Qe7 Qhg1 Nh1 Qbe3 Qh7 Qc1 Qhh4 Qa1 Nd3 Kb5 Nh6 Nc8 Be2 Ra3 Ne1+ Ka5 Bc4 Rg3 Kc6 Na7+ Kb7 Rh3 Qfg3 Qc5 Ka8 Kb6 Qf2 Rg3 Bb3 Kb5 Bbd5 Be2 Bh3 Rd3 Bb3 Bf3 Bbe6 Qh2 Bf1 Qg3 Beh3 Qg2 Be6
4kN1B/2K1n3/3n1r1Q/Q1bp1NQ1/qBpr2rq/1R4N1/4R1nP/bBr4b b - - 0 1 illegal: No proof kernel
b1Q1rb2/Q1q1n3/Nb3KQ1/B2pP3/1N1kr2r/p2b2Rn/4RnqN/1B1R4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 h4 g5 b4 f3 c4 d3 e3 a4 h5 f2 b6 g3 b7 g2 c5 d2 b5 a3 h6 g4 b6 g3 c6 Qc7 h7 Ne7 Qc2 d1R Rh3 Re1 Bd2 Na6 b8N Bb7 Nf3 g1N Ba5 g2 Nc3 Nb4 Bd3 f1B Rg3 Nh3 Na6 g1B Nh2 Re8 Rd1 Ba8 b7 d5+ Kd4 Ke6 b8Q f5 Qa7 f4 Na2 f3 Qb1 f2 e4 Be2 Bc2 Nd3 N2b4 Qb8 c7 f1Q+ Re3 Kd6 c8Q Ndf2 Rg3 Qg2 Bd3 Qc7 Bc2 Rg8 h8R Bd3 Rh5 Rh8 Rf5 Ng4+ Rf2 Re3 Re2 Rh4 Qb2 Ngf2 Bb1 Rf3 Qd2 Rf6 Qg5 Rff4 Na2 Kc6 N2b4+ Kb5 Qg6 Rfg4 Qd6 Rf4 Ke5 Kc4 Ke6 Rfg4 e5 Re4 Nc5 Kd4 Kf7 Nh1 Qg6 Be3 Kf6 N1f2 Nf3+ Kc4 Nca6 Bb6 Nh2 Kc3 Na2+ Kd4 N2b4
2q4N/bbNk2q1/2R1rQ2/1n1pPr2/1BqnpR1n/QR4Nr/1K2B1B1/4q3 b - - 0 1 illegal: No proof kernel
Q3bN1k/2n1B1r1/BK2QNq1/1p1B3N/br1pQ1PR/4n2q/1r1b3r/4R2q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kg7 Kc4 b5+ Kc5 d5 g4 h5 a4 b3 c4 h3 f4 b2 a5 h4 a6 d3 a7 d4 Ra6 e5+ Rd6 e4 Qc2 d2 Bd3 d1B Ne2 h2 Re1 h1Q Nd2 b1R Ng3 h3 Ba3 e3 Nde4 e2 Nf6 h2 Be4 Rb4 Bd5 Ne7 Qe4 Qe8 Kb6 Bd7 c5 Ba4 c6 Qg6 c7 Be8 c8B Na6 Re6 Rh3 Ngh5+ Kh8 Re5 Nc7 Ba6 Rd8 a8Q Rd7 Qc6 Bh6 Qe6 Rb2 Bd6 Qf3 Bc5 h1Q Ba3 Ng8 Be7 Rh2 Ba3 Bf8 Qd3 Bb4 Re3 Qhf1 Ba8 Rd8 Ne4 Qh6 f6 Q1g2 f5 Rd2 Rb1 e1R Rb3 Rb1 Re1 Qg5 Qc2 Qff1 Rh3 Rd7 Rh4 Qfh1 Qcc6 Qg7 Qcd5 Bc3 f7 Ne7 B8b7 Qf3 f6 Qh3 Bd6 Nf5 Bb4 Ne3 f8Q+ Qg8 Bd6 Rb4 f7 Rdb2 Nef6 Bd2 Qde4 Re7 Ba8 Bd7 Bd5 Bc6 Qfc8 Be8 f8N Qg6 Qa8 Rg7 Be7
1N3BQ1/R1K1n2b/3Q1NR1/PqB5/r1qQB1n1/b2qp3/1n3brp/1k3Rn1 b - - 0 1 illegal: No possible last move
K7/2q2bB1/N2nRqNp/1nQQR3/3b3P/Qq1bR3/bp2BNr1/r3n1k1 b - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Kf2 Kd7 d4 Ke6 g4 Kd5 h4 f5 b6 e5 b7 a5 g5 h6 c3 f3 Ke3 a4 g6 b3 g7 f2 Ra2 f4+ Ke2 f3+ Ke3 a3 Ne2 Bc5 Qc2 Nf6 g8R Nc6 b8N Qc7 Na6 Ne8 Bb2 Nd6 Rg6 Rg8 Rhg1 Be6 Qc1 Na7 R1g3 Nab5 Nd2 Bf7 Re6 Ba7 Ra1 a2 Rb1 a1Q c4+ Kc6 c5 Kd5 Rh3 Rg2 c6 Qa2 Bc3 Qc2 Qa3 b2 Re1 Qb3 Nc1 Bb6 Be2 f1B Nd3 f2 Nf3 Kc4 Kd2 Ra7 d5 Bd4 Rg3 Qb4 Kc2 e3 Rg5 e4 Rge5 Qd7 c7 Qb3+ Kb1 Qc6 c8Q Qc7 Qf8 Qb4 Kc2 Ra8 Bd1 e2 Qc8 e3 Qf8 Nb7 d6 Ra7 d7 N7d6 d8Q Ra8 Ndc5 Ra7 Ne4 Qb3+ Kb1 Kd3 Qa8 Rg8 Qd5 Bh3 Qe7 Rg2 Qg5 f1B Qdc5 Qc2+ Ka2 Bf5 Qg8 Bh7 Qa8 Bhg8 Qad5 Qa4 Nb8 Qa6 Kb3 Qab6 Kb4 Ra5 Qab3 Ra1 Na6 Qbb8 Qa3 Qbd8 Bb3 Qf6 Bc4+ Kc2 Rb1 e1Q Be2 Qg3 Re1 Qh3 Nf2 Qg3 Bc4 e2 Re3 Qh3 Ne5 Qhf3 Ng6 Qg3 Rd1 e1N Rd2+ Kc1 Rde2 Qh3 R3e5 Qg3 R2e3 Bd3 Ne4 Kd1 Ka4 Qd7 Ka5 Qh3 Kb6 Qc8 Rf3 Ke2 Nf2+ Kf1 Rg3 Kg1 Rge3 Be4 Be2 Bd3 Bh5 Qhf3 Bg4 Qd1 Bf3 Qb3 Be2 Nc7+ Ka7 Qcd8 Nb8 Ncb5+ Ka8 Qc7 Na6 Bb1 Bd3 Bh7 Be2 Ba2 Nf8 Be4 Ng6 Bd3 Qab4 Qf3 Rh5 Bg7 Qa3 Bh8 Bg7 Qf5 Bf8 Bd4 Bg7 Qf6 Rhe5
Q1rBq2B/2r1qb1N/NRQnqpB1/5R1q/1p2P2b/2Rr4/3b4/2k2NnK b - - 0 1 illegal: No possible last move, all moves rejected
q3b1Nr/1Q2qrB1/2R1Np1B/rr1PQB2/1bR5/2b1p1nN/Q3k3/1K2n1q1 b - - 0 1 illegal: No proof kernel
1Q1Nq3/n2b1B1n/R2qpRQ1/1rr3N1/2bB2Kp/4qr1P/3B1b1Q/1rk2N2 b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kf7 f4 Ke6 c4 Kf5 d4 h5 b6 g5 c5 a5 d5 b3 c6 e3 h3 Ke4 c7 a4 f5 a3 f6 h4 b7 b2 f7 g3 d6 g2 d7 a2 Qd2 g4 Qc3 g3 Qc5 Ra5 Qd6 Rc5 Rh2 Nf6 Qd2 Nc6 b8Q Na7 Qb5 Nh7 Nf3 g1Q Qba5 g2 Na3 b1B Qa6 Bd3+ Kd1 Bg7 f8B Bd4 Bg7 Rf8 Nc2 Bc4 Qg6+ Rff5 Ke1 e2 Ne3 Qf8 d8N Bd7 Qb2 Kd3 c8Q e6 Qcb8 Qe8 Bd2 Rb5 Rh1 Qh2 Kf2 g1R+ Bg2 Bc5 Bd4 Rc1 Rf1 Qd6 Bh1 e1R Kg2 Rb1 Ng5 Rec1 Rf3 Ke2 Nf1 Kd1 Kf2 Rf7 Rf6 Rf8 Kf3 Bb6 B4c3 Bf2 Bd4 Rc3+ Kg4 Rf3 Rf4 Rff5 Bg2 Rfc5 Rf6 Rff5 Be4 Rf3 Bf5 Rc1 Rb1 a1Q Be4 Qa5 Ra1 Qc3 Ra6 Qe3 Bd3 Rb1 Bf5 Qdf8 Qh2 Qd6 Qb4 Ra5 Qb8 Rcb5 Qf7 Rc5 Bg6 Rab5 Bh5 Kc2 Qg7 Kd1 Bf7 Kc2 Qg6+ Kd1 Be1 Kc1 Bd2+
1N1n4/qn1R3Q/1N1bpnn1/pK1P1q1B/r2Bk3/1b2b2B/Q6r/1N3RQq b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 g4 Ke6 b4 Kd5 f4 h5 d4 c5 f5 e3 b6 c3 Kd3 h3 g5 h4 b5 c4+ Ke2 h2 f6 h3 b7 c2 f7 c3 Kd3 e2 b6 e1N+ Ke2 Ke4 g6 Qd7 g7 Qf5 Nf3 Nf6 g8B Nd3 Ne5 Nc6 b8Q Be6 b7 Bb3 d5 e6 Be3 c1B Qc7 c2 b8N Nd8 Bd4 Bd6 f8Q Nc5 Qh7 Be3 Ned7 Ncb7 Bf7 c1Q Bg6 Qc7 Bh5 a6 Rg1 h1Q Rg7 h2 Bh3 Qb6 Qe1 Qa7 Nb6 Nd7 B5g4 Qg6 Qff2 Nf8 Qh5 Qg1 Rd7 h1N Na3 Qf5 Bf1 Ng6 Rd1 Rh7 Nb1 Rh6 Qfh2 Nf2 Qa5 Qg2 Qg1 Qh1 Qa2 Rh7 Qh4 Rh6 Qe7 Rh2 Bh5 Ng4+ Bg2+ Kf4 Qh7 Nf6 Nc6 Rc8 Nb8 a5 Rf1+ Bf2 Kd2 Rc4 Bh3 Ra4 Kc3 Ke4 Qg7 Ra3 Qh6 Be3 Qh7 Ba4+ Kc4 Bb3+ Kb5 Ra4 Qb2 Ba2 Qbf2 Bb3 Qa2
2b1RRQn/5Q1B/2qPq2N/r1Nn3N/1bKp1n2/5rb1/1p4Qq/R1k1B2n b - - 0 1 illegal: No proof kernel
1K1bnk1N/n2RBNbr/3p2B1/3q1q1b/3n1P2/Q2Q1r1Q/BRp3b1/3R3r b - - 0 1 illegal: No proof kernel
1bnk1qn1/N7/2p1N3/5q1B/1NRQ1BPq/Qb3KB1/npb1rR1r/3q3R b - - 0 1 illegal: No possible last move
B1rn3b/2k1b3/1Rp1Qr1N/qqP3r1/Q1NQpB2/2b2n2/2R2K2/1r1q1N1B b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 f4 Kd7 a4 e5 c4 b5 d4 h5 a5 h4 g5 h3 g6 b3 c5 b2 a6 b4 f5 h2 d5 e3 d6 b3 f6 c6 g7 e2 a7 e4 f7 Nh6 g8N Be7 f8Q Qa5+ Qd2 Nf7 Nf3 g1R Ra4 g2 Kf2 Rh6 Qd1 Rf6 Rc4 Nd8 Na3 b1R Bf4 b2 Qh6 Kc8 Rc3 Nd7 Rc2 Ne5 d7+ Kc7 Nc4 Rc8 a8B e1B+ Ke3 Rc1 Nfd2 b1Q Qh3 Qbb4 Qe6 Rb1 Nh6 Qba4 Be2 Q4b5 Nf1 Bd2+ Kf2 Bc3 Nd6 Nf3 Qd4 Rd1 Qa4 Rd5 Nc4+ Re5 Nfd2 Rb1 Rhc1 h1Q Nf1 Qh5 Rb2 Qh1 Rcc2 g1B+ Kg3 Nd2 Bf3 Bgd4 Rb4 Qh5 Bh1 Qd1 Rbb2 Nf3 Kg2 Qba6 Rb6 Q6b5 Kg3 Bb2 Kg2 Bdc3 Kf2 Ba1 Be3 Rg5 Bc1 Be5 Bf4 Bc3 Ra2 Rf8 Nce3 Nb7 Nc4 Rff5 Rc2 Rff8 Be3 Bh8 Bc1 Rf6 d8Q+ Kb8 Qdd5 Kc7 Qd4 Nd8 Bf4+
QQ1R1q2/RNBK1Bqb/nP1np3/rBR3q1/7Q/3b1n2/1bN1pk1r/6q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Ke6 g4 Ke5 b4 Kf4 b6 a5 b7 d5 c5 h5 f3 Kg3 c6 e6 f4 e3+ Kd3 a4 f5 e2 b5 h3 g5 a3 f6 h2 f7 a2 b6 h4 c7 h3 g6 Qg5 g7 Ba3 f8R Nh6 g8B Ra5 Rd8 Kf2 Qc2 Bb2 Qc3 Nf7 Bd2 Nd6 Qb3 Na6 b8Q Bd7 c8Q Bb5+ Qbc4 Rh4 Kc2 d3+ Kb3 d4 Bf4 d2 Nc3 d1N Bg2 d3 Na4 d2 Nc5 Ne3 Bf7 Ng4 Nb7 Ne5 Bc6 Nf3 Qe4 Bd3 Bb5 Rh6 Rc1 a1Q Rc5 Rh8 Qa8 Qf1 Qcb8 Qfg2 Qh7 Q2g3 Qh4 d1Q+ Rc2 Qd2 Rc5 Qg7 Be5 Qdg5 Bf4 Qf8 Be5 Ne1 Nf3 Qgg7 Nd4 Nf3 Rg1 h1Q Nc2 h2 Ra1 Qg1 Ra2 h1B Bf4 Nc8 Bc7 Bh7 Kc4 Bg2 Qh5 Q3g5 Ra1 Bh3 Ra2 B3f5 Qh4+ Q1g3 Ra3 Nd6+ Kb3 Bhg6 Qh6 Ra4 Bc4 Bd3 Qh3 Rh7 Qg4 Rh1 Qh4 Nb4 Ra1 Ra7 Ba6 Rh2 Ka4 Nc4 Kb5 Bh7 Qg4 Qg1 Ra4 Nd5 Kc6 Nb4+ Kd7 Nd6 Bb5 Ra6 Ra3 Ra7 Rac3 Ra1 Ra3 Ra2 Ra6 Ra5 Ra7 Na6 Qh4+
2nR2rn/1k3B2/qpP3Q1/3Q2B1/Nq5p/1R1qN1r1/r2b2BN/Q1nK1n1b b - - 0 1 illegal: No possible last move, all moves rejected
B3r1nk/K4N2/p1q3qb/3b1prn/1B2b2q/1BPn1R1R/RQn5/QQ2N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 f5 Kc4 Kf7 g4 Kg7 e4 h3 b4 h2 c3 h4 b6 d5+ Kb5 h3 g5 f3 e5 d3 b7 f2 g6 d2 e6 d4 e7 d3 e8R Qh4 Ba3 a6+ Kb6 Nc6 b8Q Ne5 b5 Bb7 Nf3 Rh5 Ra2 Bd5 Ne1 Rg5 Bg2 f1N Bb4 Ng3 Na3 Kh8 Nc4 Bh6 Nd6 Nh5 Qa1 d1N Re7 d2 g7+ Kh7 Be4 Nd3 Nf7 Ne3 Bg2 Nc2 Re3 d1Q Rf3 Qd2 Qb7 Rf8 Ka7 Re8 b6 Qdf4 Qb8 Qd6 b7 Qe6 Be7 Qg6 Bb4 Ngf6 g8B+ Kg7 Rhf1 h1B Re3 h2 Rh3 Be4 Rff3 Bd5 Ne5 Be4 Bb3 Ng8 Nf7 Bd5 Qf4 Be4 b8Q Bd5 Qfc1 Kh7 Nd6 Kh8 Qcb1 Be4 Re3 Bd5 Be4 Bg2 Ref3 h1Q Qbb2 Bf7 Ba8 Bd5 Rf4 Bge4 Rff3 Qg1+ Qb6 Qc5 Qbb1 Qc6 Qf2 Na3 Qfb2 Nc2 Nf7+
1br1b1K1/3nB3/p1n1kNQr/2B1p3/2nPR3/2rB2bQ/1Q3qN1/1Nr1q2R b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 c5 Kf4 e5+ Kf5 h5 Kg6 c3 Kf7 a6 b4 c2 f4 h3 d4 e3 g4 e2 f5 e1B b6 c4 f6 h4 b5 h2 b7 c3 g5 h3 g6 Ne7 b6 Bg3 g7 Rh6 g8Q Nec6 Ra2 Bd6 Bg5 c1N Qd3 c2 Qgg6 Nb3 Ne2 c1R Nf4 Nba5 Ng2 Nc4 Re2 Rc3 Re4 Qc7 Kg8 Ke6 Qf3 Bd7 Bd3 Be8 Qf1 Qe7 f7+ Qf6 f8B Nd7 b8Q Bc7 Qb7 Rc8 Bc5 Bd6 Qb8 Bc7 b7 Bd6 Rg1 h1Q Bh4 h2 Qff5+ Kd5 Qh3 Qf2 Rge1 Qhf1 Be7 Q1e2 Rh1 Qee1 Qa7 Bb8 Qb6 Bc7 b8N Bd6 Rf1 h1R Rg1 Nf8 Nd7 Bb8 Rf1 Rg1 Qb2 Rh1 Qh4 Rg1 Nf6+ Ke6 Rg4 Nd7 Qh3 Qed2 Re1 Rh1 Ree4 Rhc1 Re1 Qde2 Rh1 Qee1 Re4+
3K3k/4B2p/rN1nR2b/qrqb2q1/6Bn/Q3bq1N/Q2PpQR1/3N1rB1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 Kg7 Kf4 e5+ Ke3 c5 b4 a5 g4 c3 f4 c2 g5 a4 b6 h3 f5 h2 b5 c4 g6 a3 b7 a2 b6 c3 Be2 Nf6 Nh3 Nc6 b8Q Ra6 b7 Be6 Qg1 Bd5 Ba3 c1Q Qf2 c2 Qa7 Ne7 b8B Ne8 Bg4 Nd6 Re1 h1Q f6+ Kg8 g7 Ng6 Bc5 Nh4 Nc3 Qa5 Rb1 a1Q Nd1 Qab2 Rg1 Qbb5 Rg2 Qca3+ Rb3 c1R Bc7 Qhf1 Bd8 Qfc4 Bd4 Qcc5 Be7 Rb1 Nc3 Rf1 Nd1 Qd8 Rc3 Qb7 Rb3 Qaa5 Rb6 Qba8 Qd7 Qb7 Qa4 Qbc6 Qa3 Qca8 Ke2 e3 Kd3 e2 Ke3 e4 Kf4 e1B Ke5 e3 Rc6 Bf3+ Ke6 e2 Rb6 Qdb8 Kd7 Bd5 Rc6 Qbb4 Be3 Qf4 Rb6 Qac6+ Kd8 Qg5 Bd4 Qcc3 Bc5 Qf3 Be3 Qcc5 Bd4 Kf7 Be3 Kg6 g8Q+ Kh6 f7 Bg7 Qg3 Bf2 f8N Bg1 Bd4 Be3 Nd7 Kg6 Qf2 Kh6 Qf8 Kg6 Qa2 Bh6 Be5 Rg8 Bh2 Rg7 Bg1 Rg8 Qe8+ Kg7 Qf8+ Kh8 Qa3 Ne8 Qf7 Rf8 Qe6 Rf5 Qf7 Nd6 Qe6 Qab5 Rc6 Qa5+ Nb6 Rf4 Qf7 Rb4 Qe6 Rb5 Qf7 Be4 Qfb3 Bd5 Qba2 Ne4 Rf6 Nd6 Re6
K1b2Q2/2QR1p1R/4nB1q/B6B/k1qP1p2/1b1nQ1N1/2qr2R1/Nrbb3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 Kd5 c5 b4 a4 e4 h3 g4 a3 d4 h4 e5 h2 g5 c3 g6 h3 b6 c4 b7 c2 b5 c3 b6 a2 g7 Qg5 Qe1 Ne7+ Kc5 Nf5+ Kd5 Qh6 g8R Nc6 b8B Ba3 b7 Ng7 Nd2 Ne6 Rg2 Ra6 Bb2 c1Q Be2 c2 Bc3 Rh7 Rb1 a1R Bh5 Rh8 Rb2 Rb1 Qe3 Ra4 Ne2 Nb4+ Ke4 Kc6 Nb3 Kb5 Ng3 Qd2 Na1 c1Q Rc2 Nd3 Kd5 Ra8 Ba5 Ka4 Rc7 Qdc2 Rd7 Qf1 Bbc7 Bc1 b8Q Qfe2 Bd8 Ra7 Re1 h1B Bf6 h2 Qc7 Rab7 Rf1 R7b2 Re1 Qc4+ Kd6 Qec2 Reg1 Nf8 e6 Ra2 e7 Ne6 e8Q Rab2 Rd2 Bd5 Rgg2 h1B Qf8 Ra2 Rh2 Bhf3 Rdg2 Bd1 Rh3 Qe2 Rh1 Rd2 Rhh2 Qc2 Rh1 Bc4 Kc6 Bb3+ Kb6 Nf2 Ka7 Qec4 Kb8 Nd3 Ka8 Rg8 Nf5 Rg3 Rh4 Rh3 Ng3 Rh2 Rg4 Rh3 Rg7 Rh1 Rh7
n3K3/n2BRpqR/QrPRBrp1/2BNN1q1/3b2b1/Q7/1q1k4/1r2n1Nn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 c4 Kc5 h4 Kb4 b6 a5 h5 d5 b7 g3+ Kf3 a4 h6 g2 h7 g6 b3 d3 e5 d4 Ke4 a3 c5 a2 e6 f3 Ke5 d2 c6 d3 e7 f2 e8B Bg4 Rh5 Ra6 Rf5 Qg5 Bd7 Ne7 Kd6 Bg7 Re5 Rb6 Qe2 d1Q Nc3 d2 Qa6 Qc2 Bc4 f1R Bce6 d1N Be3 Nf2 Rd1 a1Q Rdd5 Rd8 h8R Nh1 Rh7 Nc8+ Kc7 Na7 Rd6 Rf8 Re4+ Bd4 Nd5+ Kc5 Re5 Rf6 Qa3+ Kb5 b4 Kc4 b5 Qcb2 Qa6 Kd3 Bf2 Bc3 Bc5 Kd2 Re4 Re8 Re3 Re7 Kd8 Bd4 Qa3 Na6 b8Q Nc7 Qb7 Na8 Qba6 Rb7 b6 Rb8+ Bc8 Rd7+ Ke8 Rdb7 Nh3 g1N Bd7 Nb5 Re7 Nf3 Ng1 Ne1 Bf5 Ra7 Be6 Rbb7 Bcd7 Rb8+ Qc8 Ra6 b7 Rb6 Qd8 Rc8 b8N Na7 Qa6 Rc7 Qdc8 Rcb7 Qa4 Rb4 Qa3 R7b6 Qb7 Qc3 Qba6 Rb1 Bc8 Qab2 Nd7 Qh3 Ne5 Qhh6 Bcd7 Qg7 Qh3 Qc2 Qf3 Qb2 Qfa3
5Br1/n2pNkq1/1q1bR3/1nbN1bN1/1rR1Bp1q/Q6R/P3b3/n1K1B1Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 b5 c4 f5 e4 g5 h4 d3 h6 g4 h5 f3 h7 g3 h6 b3 c5 b4 c6 b2 c7 b3 e5 f4 e6 f2 e7 g2 Qg4 Ba6 c8N Kf7 e8R Qh4 Re3 Nf6 Rh2 Nd5 Rf3 Nc3 Re3 Nb5 Rh1 Bd6 Ne7 Rg8 h8B Nc6 h7 Rab8 Nc3 b1B Bg7 b2 h8Q Nca7 Nf3 g1B Bg2 f1Q Re6 Bgc5 Ncd5 Qg1 Rh3 Bc2 Bh6 b1Q Qc3 Qb2 Qb4 Qg7 Qa3 Bb1 Bh1 Qgf2+ Kd1 d2 Qg1 Bf5 Rb1 Qe3 Rb4 Rb6 Rbe4 Qed4 Kc2 d1N Bd2 Ne3+ Kc1 Nc2 Be1 Na1 Bg2 Qb4 Rc4 Rbb8 Bf1 Qa5 Bd3 Qb6 Be4 Nc7 Rc2 Be2 Rc4 Ncb5 Ng5+ Ke8 Qh2 Nc3 Qf2 Qa5 Bh1 Rb4 Qg3 Qe5 Rd4 Ncb5 Be4 Qb6 Bf8 Qeh8 Rc4 Qg7 Nh7 Kf7 Qg5 Qf2 Qg1 Qh4 Ng5+
1Brb2bB/q1P1R1q1/n1kQ1R2/1N1rnK2/2p2RB1/1n1r1Q2/1p2Qn2/N5b1 b - - 0 1 illegal: No possible last move, all moves rejected
1b1Rb1Kb/1Prq2n1/R3rB2/1qb5/Qkp1R3/4NQBq/1p2n1B1/5NQr b - - 0 1 illegal: No proof kernel
1Nnr4/1p4Rn/1k2Nn1q/R1bp1Q1b/B2R1b2/NK2Q3/5P2/B1r1Bbqq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 d5 g4 Kd7 c4 Kc7 Kc2 h5 a4 e5 a5 d3+ Kb2 d2 a6 b3 c5 h3 f6 e4 a7 h4 c6 e3 f7 e2 g5 e1B g6 h2 g7 h3 Qe2 d1B Qe3 Bh5 Qe7+ Nd7 Na3 Kb6 c7 Ndf6 Bd2 Nh7 Qe3+ Bc5 f8B Ne7 g8R Qd6 Nf3 Qh6 Ng5 Bd7 c8Q Bb5 Qg4 Rd8 Qf5 Nc8 Rg7 Bd3 Bc3 Bd2 Ne6 Bc4 Rhg1 h1N R1g4 h2 Rd4 Ng3 Bb4 Ba6 Bb5 h1Q Ba4 Bf1 Bc3 Ne4 a8N+ Ka7 Be7 Nef6 Nac7 Kb6 Na6 Rhe8 Nb8 Bc1+ Kb1 b2 Kc2 Rh8 Kb3 b1Q+ Bb2 Rhf8 Bd6 Rf7 Be5 Rc7 Ra2 Qa1 Bc3 Rc6 Be1 Bd2 Qg3 Bf4 Qe3 Qg1 Rdd2 Qb1+ Bb2 Qe4 Ba1 Qeh1 Rd4 Be7 Rb2 Rc1 Rc2 Bed6 Rc5 Bf8 Ra5 B8d6 Qg4 Bc5 Qf5
b6k/1pKRQn1P/Q4b1r/3Q1B1B/p3n2q/2nrqN2/N1bnR1R1/3r2B1 b - - 0 1 illegal: Other
r1QqB1BK/P3qN2/1NnQ2Nb/p2n1b2/np1Q3B/r1k2R2/4qR2/3nr3 b - - 0 1 illegal: No possible last move
2nr1bN1/1b3n1n/P2p2Qr/7N/k2p2b1/N1RBbB2/KbR5/1RQb1qB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 e5 a4 b5 c4 g5 Kc2 b3+ Kb2 g3 h4 b4 f4 e4 f6 e3 c5 g2 h5 e2 h6 e1B f5 d6 h7 Kd7 a5 Kc6 f7 g4 f6 g3 a6 Ne7 Bd3 Bg4 Bg5 Nc8 Bh4 Nd7 Nh3 g1B Ra3 g2 Nf4 Ne5 Nh5 Be3 Bf2 g1N Qc1 Nh3 Bg1 Ng5 Ka1 b2+ Ka2 Qd7 Rc3 Qf5 Na3 Qf1 Rc2 Bc3 Rh3 Bh6 f8Q Nef7 Qg8 Bf8 Qg6 b1B+ Kb3 Nh6 f7 Bb2 Rh1 Rb8 Rc3 Bc2+ Ka2 Bcd1 Rc2 Bg7 f8N Nhf7 Nd7 Bf8 Ndf6 Ra8 Ng8 Rb8 Nc4 Kb5 c6 Ka4 c7 Ra8 Na3 b3+ Kb1 Na7 Rc3 Rd8 Rh2 Nc8 Rhc2 Ba1 Ne7 b2 Ka2 Rg8 h8R Nh7 Qe6 Rg6 Ng8 Rh6 Qf6 Ka5 Qg6 b1B+ Kb3 Na7 c8B Bb2 Bb7 Nc8 Bh1 Bdf3 Bg2 Be4 Bf3 Bb7 Re2 Bc2+ Ka2 Bd1 Rec2 Nhg5 Rh7 Ka4 Rg7 Ne5 Rgc7 Nh7 R7c5 Nf7 Rb5 Ba1 Rb1 Bb2 Rc6 Nf6 R6c5 Nh7 R5c3
K5N1/1nqp4/NQ3B1p/2n4Q/bnnRBb2/1RN2Bk1/P1b3R1/nr1n1r2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 h6 g4 h3 c4 b3 f3 b2 g5 d3 f6 h2 c5 d2 g6 Kf4 g7 e5 c6 e4 c7 e3 Kb6 e2 f7 e1N Bg2 Bd6 f8R+ Nf6 g8Q Nc2 Qe6 Na6 Nh3+ Kg3 f4 Rb8 Ka7 b5 f5 b4 Ng5 b3 Rg1 h1N Qh5 d1N Nc3 b1N Bb2 Nd2 Nh7 Nc4 Rb1 Ne4 f6 Nac5 f7 Ba6 c8B Nhf2 Nf6 Qc7+ Bb7 Nfd3 Ng8 Bf4 Qb6 Ned6 Ba1 b2 Bf3+ Kf2 Re8 Ndb4 f8N Bb5 Re4 Ba4 Rd4 Rh7 Ne6 Rf7 Rh1 Kg3 Rh2 Bc1 Be4 Rf1 Re2 Bf4 Rf2 Qc8 Nc7 Qd8 Bbc6 Ndb7 Na6 Qc7 Bf3 Bc1 Bce4 Bf4 Rc1 b1B Bb2 Re8 Rfd2 Re6 Ka8 Na1 Rh2 Bbc2 Rb1 Rg6 Re2 Rg4 Rf2 Rh4 Rg2+ Kh3 Rg6 Re1 Rd2 Nf2 Nb5 Rg1 Rgd6 Kg3 Bf6 Rhh1 Rb3 Rb1 Nc3 Rhf1 R6d4 Nd1 Rg2#
1k1r4/2p2b2/RR2rNb1/1P1qQb1n/3r1B2/3B1Rpb/1bBQ3b/n1NQK3 b - - 0 1 illegal: No proof kernel
1Q1BK3/P1NQnn2/1rR4r/bQn1knbp/1q6/2N1Bn1b/p1n2N2/6RB b - - 0 1 illegal: No proof kernel
5nkr/r1Q4r/rB1KN1rB/r6R/n7/1NPQ1p1B/1bRqqNpQ/3b4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 e4 Kf7 h4 g5 b4 a5 c3 d5 e5 g3+ Kf3 g2 b6 a4 b7 a3 b5 a2 h5 g4+ Ke2 d3+ Kf2 g3+ Kf3 d2 b6 d4 h6 d3 h7 Na6 b8B Ba3 b7 Bb2 Bc7 Nf6 b8Q Nd7 Ne2 g1R Nd4 Ra7 Nb3 Nac5 Na3 Na4 Rb1 a1R Nc2 Nf8 e6+ Kg7 Qe2 d1R e7 d2 Bh3 g2 Rh2 Rh1 Ne3 Rdg1 Ng4 d1R Qe3 Rd6 Bb6 Rg6 Nf2 Qd2 Qc7 Re1 Qd4+ Re5 Qd3 Ra3 Ra1 Rea5 Ra2 Bd7 e8N+ Kf7 Qc8 R5a6 Ng7 Be6 Nc5 Bb3 Nge6 Bc2 Nb3 Bd1+ Qe2 Nc5 Qb8 R3a5 Qc8 Na4 Qc4 Rhg8 h8Q R8g7 Qh4 Rh7 Qc7+ Kg8 Qg3 Ba1 Rc2 Bb2 Bg4 Rh8 Rh5 Rh7 Qh2 Rh8 Bh3 Rh7 Ng4 Rh8 Kf2 f3 Kg3 f2 Qe4 f1Q Qd3 Rf6 Nf2 Qfe2 Qe3 Rg6+ Kf4 Nc5 Ke5 f4 Qe4 f3 Qe3 Qf1 Qd3 Qfe2+ Kd5 Na4+ Kd6 Rf6 Bg4 Rc5 Qg3 Qde3 Re5 R1h7 Qh2 Rca5 Rh5 Rg6 Bh3 Qh6 Bd2 Qhe3 Qd4 Q3d3 Bh6 Qdd2 Qd3
8/R3Qq1q/1qNQQ1r1/1NnbqbR1/q2p1qp1/2NR1kPr/BB6/K3n3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 g4 Ba3 Be7 Bc1 Bg5 hxg5 cxd6 Nc3 d5 Nb1 d4 Kd2 Ke7 e4 Kd6 c4 Ke5 Kc2 f5 Kb2 d5 a4 b5 g3 h5 c5 f3 c6 f4 a5 f2 c7 h4 a6 b3 g6 f3 g7 b4 a7 d3 Ne2 h3 Bg5 h2 Ra5 d2 Ra1 d4 Bh6 Nd7 Ra4 Qg5 Ka1 b2+ Ka2 b3+ Ka3 Nc5 Nbc3 b1Q Qe1 d1Q Nb5 b2 Nec3 Bf5 c8N Nd3 Ne7 Nf6 g8R Nd7 Ra5 Re8 a8Q N7c5 Ra7 Rd8 Qe3 Rd6 Qc6 Ne1 Bc4 f1Q Ba2 f2 Bf8 Qf6 Rg5 Rh3 Rg1 h1B Qa6 Qe6 Nc6+ Kf6 Qb6 Qe5 Qc7 Re6 Qd6 Qbc2 Rg2 b1Q Bh6 Qc4 Bf8 f1Q Rd2 Qff4 Rd3 Qh2 Bh6 Qbc2 Qe2 Q2a4+ Kb2 Qdb3+ Ka1 Qcb4 Qe3 Qba5 Bf8 Qb6 Be7+ Kf7 Qe2 Rg6 Qe3 Kg7 Qe2 Qf7 Qe3 Qef6 e5 Bd5 e6 Q6e5 Bf8+ Kf6 e7+ Qfe6 e8Q Qh1 Qdd7 Qf7 Qc7 Qhe4 Qd6+ Bfe6 Qf2 Rg7 Qc7 Na6 Qe3 Qd6 Qcd7 Qh7 Ne7 Rg6 Qed8 Bf5 Nc6+ Qde7 Q8c8 Qee6 Ba3 Nc5 Bb2 Qed6 Qee8 Qde7 Na5 Ke5 Qf8 Qef6 Qfe7+ Qf6e6 Nd1 Ke4 Qdd6 Qee5 Qce6 Qh6 Nc6 Qhh7 Rd2 Kf3 Ndc3 Qb4 Rd1 Qa4 Rd3+
2bK4/n1R5/3N2p1/rQnqB2k/rb2Qr2/bb1pP3/2Q2RNb/1NR2Br1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 d5 c4 f5 b4 Kf7 h4 Kg6 e3 g3 c5 a4 b6 a3 c6 f3 b5 f4 b7 f2 b6 a2 c7 g2 Rh3 f3 Qb3 Bb4 Qc2 Rh5 Rh2 Nf6 Bb2 Nc6 b8Q Ne4 b7 Na7 Ne2 g1B Nf4+ Kh6 Ng2 g6 Bc3 Re5 h5 Nc5+ Kd2 Kg5 h6 d3 h7 d4 h8Q Qd5 Qe8 Rf5 Rh7 Bh2 Qe4 Rf4 Rf7 Kh5 Rf8 Nc6 Rf6 Ra4 Rf7 Na7 Re7 Bf5 c8N Be6 Nd6 Bc8 Rc7 Ra5 Kc1 d2+ Kb2 d3 Be5 Ba3+ Kc3 d1B Qb2 Bb3 Qc2 Bf5 Qe8 Bc8 b8R Ra4 Qb5 Rf5 Be2 f1R Rb6 Rg1 Bf1 f2 Rbb7 Rf4 Rf7 Ra5 Rbc7 Qb7 Kd4 Rg4 Be2 f1R Rf8 Rf4 Bf1 Rh4 Rf6 Rfg4 Rf2 Rf4 Nc3 Qc6 Rc1 Qd7 Nb1 Rhg4 Qbc4 a1B+ Kd5 B1b2 Rb7 Bb4 Rc7 Ba4 Qa6 B2a3 Qb5 Qf5 Nf7 Bb3+ Kd6 Rh4 Ke7 Qe6+ Kd8 Qd5+ Nd6 Rfg4 Rd7 Bc3 Qec4 Bd2 Q4c3 Rga4 Qcc4 Bdb4 Qe4 Rf4 Rc7
2n1NBk1/Q1N2n2/qRrPbrBp/nB1b1b2/2QRpN2/4K1bQ/1n6/4b3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 a4 c5 f4 b5 d4 e5 g4 b3 g5 b2 d6 c4 f5 h3 a5 c3 d5 c2 d7 b4 f6 h6 a6 h2 a7 b3 Na3 b1B Bd2 c1N+ Ke3 b2 Qg4 Nc6 Nc4 Nb3 Bb4 Bd6 Ra4 Qa5 d8Q Nge7 Ne2 Rf8 g6+ Kg8 g7 Qa6 Nf4 Be6 Qc8 Nd8 Qh3 Nf7 Qc6 Rae8 a8N Rc8 Nc7 Na5 Be2 Bc2 Rb1 h1B Bh5 Bf3 Bg6 Bg2 Bc5 Bf3 Rb4 Bd3 Rd1 b1N Rb6 Nc3 Qb7 Na4 Qa7 Bb1 Rd4 Nb2 Ba3 Bfg4 Bb4 Bgf5 Bc5 Ba2 Bb4 Bc5 Nd6 Bb3 Nde8 Bd6 Kf2 e3+ Kf3 e2 Ke3 e4 Ba3 Nec6 Bb4 Be5 Be7 Nh8 d6 Rf7 Bf8 e1B Bh5 Bbd5 Be2 Rd7 Bb5 Ne7 f7+ Kh7 Na8 Rc6 Nac7 Rd8 Rd1 Nc8 Rd4 Ng6 g8B+ Kh8 Nh5 B5g3 Nf4 Ne5 Bh7 Rd7 Bg6 Rd8 Bh5 Kh7 Bg7 Rd7 f8Q Rf7 Qe7 Rf6 Bg6+ Kg8 Bf8 Nf7 Qd7 Rc5 Qc6 Rc2 Qc3 Rc1 Qb4 Rc6 Qc4
R2n2NB/3pR1Kn/r1rn2b1/n2N1rN1/qP1RB2n/6bp/8/Q2B1rQk b - - 0 1 illegal: No possible last move
BnB3K1/2pQ1N1r/5NPQ/1bb2bR1/3B1k2/2Nr3p/Q1n1q2b/1Rnn3n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 a5 b4 f3 g4 a4 b6 f6 d5 a3 b5 a2 g5 f2 g6 h3 b7 h4 b6 h2 Nd2 c3 Bg2 f1B Rb1 a1N Bb2 c2 Bd4 Nc6 b8Q c1B b7 h3 Qa7 Nb4 b8Q Nac2 Qa2 Rh7 e3 Ra7 Ne2 Nd3 Rg1 h1N Nc3 Ra3 Qb5 Qd7 Qh5 Ne7 Qh6 Nc6 Bf3 Nb8 Rg5 Rb3 Bg4 Qe7+ Be6 Bg2+ Kf5 Bf1 e4 Ba3 Qe8 Nc1 Qa4 Qe8 Qb5 Bc5 e5+ Ke7 Qc6 Bb5 Nde4 Bd6 Bd7 Ra3 e6 Bh2 Nd1 Rd3 Ndc3 Bc4 Qca4 Bb5 Bc6 Bd7 Ba8 Bc8 Ng3 Kd6 Nh5 Bca6 e7 Bb7 Kg4 f5+ Kh4 f4 Nf6 f3 Kh5 Bc4 Qb5 f2 Qba4 Qb5 e8B f1N Bd7 Nfe3 Bc8 Qe8 Qb5 Nd1 Qba4 Bc6 Qb5 Bd7 Qba4 Bf5 Qc6+ Ke7 d6+ Kd8 d7 Ke7 Qb5 Ke6 Qba4 Bc5 d8N+ Kd6 Qb5 Bd7 Nf7+ Ke6 Rg2 Kf5 Rg5+ Kf4 Qba4 Bf5 Qd7 Qe6 Qa3 Rh8 Qa2 Be7 Qh7 Bc5 Kh6 Bb5 Kg7 Qe2 Qh6 Rh7+ Kg8
2bqQ3/bp3nN1/Q1R3r1/2P2pr1/1b1b1N1r/B3RrQb/KRBk3n/B7 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 e4 Ke6 h4 g5 a4 d5 c4 f5 Kc2 b3+ Kb2 g3 a5 d3 h5 g4 h6 d4 a6 g2 a7 g3 h7 d2 Rh3 d3 Nc3 Bb4 Nge2 g1B Qc2 d1R Na4 d2 Rh6+ Nf6 Qc3 g2 Rb1 Nc6 Qg3 Bb6 Ka1 g1B Ba3 b2+ Ka2 Bbd4 Bg2 Rg8 h8B Rg5 Bf1 Rb8 a8Q Ba7 Bg7 Bgd4 Bg2 Rg1 Nf4+ Kf7 Nc5 d1B Bf3 Ng4 Nce6 Nh2 c5 Rg6 Bg2 Bg4 Bf3 Rf1 Bd1 Bh3 Bc2 Rf3 Bh8 Rg5 Ng7 Ke7 e6 Ne5 Rf6 Nf7 e5 Rg6 Rf1 b1R Rf2 Rh1 Rg2 Kf8 e7+ Kg8 e8Q+ Kh7 e6 Kh6 e7 Rg1 Rd2 Rh1 Qe1 Kg5 Rc6 Rg1 Rf2 Rg4 Re2 Rh4 Re3 Kg4 Rb3 Rg5 Rb2 Rg6 Qc3 Kg3 Qb3 Kf2 Qd3 Ke1 Qb3 Bb6 Qa6 Ba7 Qbd3 Rf2 Qg3 Kd2 Qd7 Rg5 e8R Rf3 Re3 Qa5 Ne8 Qb6 Qd5 Bd7 Qe5 Bdc3 Rb1 Rc8 Nd6 Rcg8 Ne8 Qd8 Bf6 R8g6 Ng7 Bc8 Qe8 Bb2 Bd4 Bc1 Ba1 Bb2 Kb3 Be5 Ka2 Bd4 Rb2
1QRR1Q2/p2NpQnN/1r4P1/1b1nB1b1/2nK4/1r2nR1n/1BB3bk/3b3q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 Kg5 b4 Kf4 b6 d5 g5 h5 f3 Kg3 c5 h3 c6 e3+ Kd3 h2 b7 e2 c7 e1N+ Ke2 d3+ Ke3 d4+ Ke4 h4 f4 d2 g6 h3 b5 d3 b6 Nc2 f5 Nc6 b8R Ne3 f6 Nh6 f7 Nhf5 b7 Bd7 c8Q Bh6 f8B Na5 Qh5 d1N Bg7 d2 Bcb2 Nac4 Ra3 Bb5 Nc3 Nd5 Bd3 Bg5 Na4 N1e3 Bc2 d1B Nf3 Rh6 Rb3 Qh8 Bge5+ Kg2 Ra3 Ng7 Kd4 Qh7 Rf1 h1B Nb6 h2 Qf8 Qh8 Re8 Rb8 Nd7 Qh7 Qh4 Rh5 Qhf4 Rh3 Rd3 Rg3 Bb3 Kh3 Rd2 Bg2 Q4f7 h1N Bc2 Nf2 Rc8 Qh8 Ng1+ Kh2 Nh3 Bf6 Ng5 Nh3 Nh7 Bg5 Nhf6 Qh5 Rf4 Qf3 Nh7 Qf1 Rf3 Qh1 Rc6 Rc8 Rc5 Rc6 b8Q Rb6 Rc8 Nd6 Nc5 Nf1 Rf4 Rb3 Rf3+ Ndf4 Rdd3 Nc4 Ke4 Nfe3 Rdd8 Ba6 Kd4 Bb5 Rg3 Nfd5 Nd7 Bh6 Rf3+ Bf4 Rg3 Bg5 Rf3+
1Q2Qr1R/4R1kN/2b2bB1/1Q1nrB2/2K1NRb1/r3p1Bp/n2bP3/1n1qr3 b - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 Kf7 Kd3 g5 f4 e5 b4 a5 c4 d5 f5 h5 b6 h4 f6 g4 b7 e4+ Kc2 e3 Kd3 g3 c5 a4 c6 a3 b5 g2 c7 h2 b6 h3 Ra2 Nc6 b8R Nge7 b7 Bg4 Rd2 a2 c8B a1B Nf3 g1R Bg2 Ra3+ Nc3 Re1 Rf1 h1B Qc2 Kg6 f7 Kg7 Qb2 Rg8 Kc2 d3+ Kb1 d4 Bf5 Qd6 Qb5 Nb4 Ng5 Na2 Nce4 Nd5 Rf4 Rh8 Rb2 d2 Kc2 d1N Nh7 N1c3 Kd3 Nb1+ Kc4 d3 Bd2 Rg8 Ba5 d2 Bc7 d1R Rd8 Qd7 b8Q Bb4 Rb3 Bd2 f8Q+ Kh8 Rd3 Bf6 Qe8 Kg7 Bf3 Rf8 Bg6 Bh5 Bg4 Bg2 B4f5 Bg4 Rf3 Bh1 Bg3 Rc1+ Rc3 Rc2 Rf4 Rb2 Q5b6 Rb5 Rb3 Rba5 Rb4 Qa4 Qbb5 Qd1 Rc8 Ra7 Ra4 Re7 Ra6 Re5 Re6 Rf7 Qec6 Bg2 Rh8 Rf8 Qce8 Ndc3 Nc5 Bc6 Ne4 Nd5 Re7+
3Q1NBK/n1RR1r2/3bqQQ1/7b/Pb1n1B1p/1N3nR1/pr2n1b1/2r3kN b - - 0 1 illegal: No proof kernel
B5B1/4n3/2rn3B/3r1NK1/ppb1rnNQ/Qq2Rb2/1n2Pb2/Nb1kR2Q b - - 0 1 illegal: No possible last move, all moves rejected
5K2/n1Bq1b2/1bB3N1/3rP1R1/3QrpNB/3br2k/b2rQpnR/4RQ1n b - - 0 1 illegal: No possible last move
5Q1b/RnR2R2/5B1b/P1r1n2k/b2Nrp2/N5Br/r2pQK2/nqn2N1B b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 a4 f5 c4 Kf7 e4 g5 h4 d5 c5 b5 h6 Kg6 e5 b3 c6 b4 c7 g4 h7 f3 e6 g3 e7 f4 e8R g2 Nc3 d3 Bd2 d4 Qc2 f2+ Kd1 b2 Na2 b1R+ Bc1 b3 Qc4 b2 Re4 d2 Ke2 d1N Bd2 d3+ Kf3 Rc1 Re1 b1N Nb4 Nh6 Nc2 Nc6 Nd4 Nbc3 Re7 Bd7 c8N Qb6 Nge2 g1B Ng3 Ne3 Rf7 Nc2 Na7 Ng4 Bg2 Na5 Nab5 Na2 Be1 d2 Qe2 Bh6 Na3 Qb1 Nf1 Nb7 h5+ Kg5 Rh4 Ra7 Bh1 Ne5+ Kg2 Re8 h8B Re7 Nh2 f1R Bg3 Rf3 Nf1 Ra5 Rh3 Rc5 a5 Ba4 Bf6+ Kg4 Rh2 Re1 Rh3 Nc1 Ra2 Na1 Rc2 Re6 Rc4 Rb6 Rc3 Rb2 Rh2 Bf8 h6 Ra2 h7 Bh6 h8Q Bf2 Qf8 Bg1 Bgh4 Kh5 Rh3 Be3 Rg3 Bf2 Rgg7 Bg1 Bg3 Be3 Nb3 Bd4 Rc2 Bc3 Nd4 Bb2 Qa6 Re4 Qe2 Rd5 Rcc7 Rc5 Rg4 Rb3 Kf2 Rbe3 Bgh4 Rh3 Bg3 Bc3 Rgg7+ Nf3 Nf5 Re8 Rce7 Rh4 Bg5 Nd6 Ra7 Rh3 Rfd7 Nb7 Rgf7 Bh8 Bf6 Ree5 Nd4 Re4 Qe1 Ne5 Rc7 Rcc2 Qe3 Rc5 Qe2+
r2n4/2k3B1/QqPNp1pn/4r3/B6b/1n1Q2RK/1b1rN1QN/nB1br2R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 b5 c4 d5 f4 Kd7 Kf2 d3 Kg3 g6 a4 d2 a5 d4 c5 b3 a6 b2 h5 b4 f6 d3 f5 b3 f7 Kc7 a7 Bg7 f8Q Nh6 f6 Nc6 Nc3 b1N f7 b2 Nce2 Na3 Nf3 b1N Bb2 Nc2 Ra3 Na1 Nh2 e6 Qa4 d1R Qa6 d2 Qe8 Re1 f8Q d1R Qf3 Rd4 Qfd3 Bb7 Bg2 Rh7 Be4 Nd2 Qe7+ Rd7 Qg5 Ndb3 Bf5 Bh8 Bg7 Qb8 Kh4 g3 Kh3 g2 Be4 g1B Qg2 Bf2 Bf5 Ng8 h6 Nd8 Be4 Rd6 Bc6 Bh4 Ba4 Nd2 Rc3 Bf3 Rb3 Qb6 Rc3 Rb8 a8B Ndb3 Be4 Ra8 c6 Rd7 Qdb5 Bh5 Rg3 Rd2 Bb1 Bf3 Qd3 Bh5 Bf8 Bb2 Bg7 Rh8 h7 Nh6 Qgf3 Rf8 h8N Rf5 Nf7 Re5 Qg2 Bf3 Nd6 Bh5 Nf4 Bd1 Ne2
2Q2nRq/K1B1RP1B/2bnkb2/2pNb3/1B1rQr1p/5R2/4r1n1/nb1Q3N b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 e5 d4 h5 f4 a5 g4 a4 b4 a3 g5 a2 b6 h3 d5 h2 b7 c6 d6 h4 b5 c3 g6 c2 g7 Ra6 f5 Be7 f6 Ra4 f7 Nh6 g8R Bf6 b6 Ke6 Nh3 Nd7 b8B Nf8 Bd2 c1B d7 Bb2 b7 c5 Bc7 Rd4 b8Q Nf5+ Ke2 e3 Qb4 e4 Nc3 Qe8 d8Q Rh6 Nd5 Nd6 Nf2 Bc3 Rhg1 h1B R1g3 Bb2 Rc1 a1N Rf3 Rh5 Qba4 Rf5 Bb4 Rf4 Qac2 Bg2 Nh1 Bb7 Qcd3 Bc6 Rc2 Bh3 Rd2 Bf5 Bh3 Bc3 Bg4 Be5 Bh5 Bf6 Bg6 Bb2 Bh7 Be5 Kf1 e2+ Kf2 e1N Ke2 e3 Qe4 Ng2 Qa8 Rc4 Kd3 e2 Qb8 e1R Qc8+ Nd7 Rg7 Qh8 Rg5 Bc1 Rg8 Rd4+ Kc3 Re2 Rdd3 Nc2 Kb3 Bb2 Rd2 Ba8 Ka4 Na1 Ka5 Bc6 Ka6 Bg6 Qe3 Bb1 Ka7 Rde4 Rd3 Bf6 Rd2 Bbe5 Rd3 Rc4 Qe4 Rd4 Qb7 Ne8 Nb6 Nf8 Qa8 Rc4 Rd7 Nd6 Nd5 Rd4 Qd8 Ne1 Qc8 Ng2 Re7#
2R5/Rn1nkpb1/1q5P/1r1p3R/1nnN1r2/1B5b/rbrNQ2K/3Q1NBQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 Kg2 d5 b4 g5 c4 g3 e4 a4 h4 g4 h5 a3 c5 a2 h6 d3 b6 d2 c6 Nf6 c7 Nfd7 b5 Na6 b7 Bg7 b8N Nb4 b6 Ke7 Qe2 d1N b7 Nb2 e5 Nc4 Rh5 f3+ Kh1 f2 e6 g2+ Kh2 Nd6 Nf3 g1N Qd1 g3+ Kg2 Bb2 Nh2 Nf3 Be3 Nfe5 Bc4 f1R Nd2 Rf4 Bb3 Nec4 Bg1 Ra3 Kh3 g2 Nhf1 Ra5 Kh2 Rb5 Na6 Bg7 b8Q Nb7 Nc5 Rg8 Qa7 Bb2 Qb6 Rg3 Qa7 Rc3 Qa6 Rc2 Qc6 Ke8 e7 Bg7 Ne6 Bb2 Ba7 g1R Nd4 Rg6 Qc5 Ra6 Qc6 Ra3 Qg6 Ra6 Qg2 Raa5 Qh1 Ra6 Rb1 a1B Bb6 Ra2 Bc5 Nde5 Bb6 Bg4 c8R Bh3 Ba7 Kd7 e8Q+ Kd6 Rc1 Nd7 Qee2 Qf6 Bb6 Qg6 Ra8 Qe6 Ra7 Ke7 N4f3 Bg7 Bg1 Bab2 Nd4 Qe3 Nb1 Rd2 Rc3 Rc2 Nbd2 Qe6 Qef3 Qb6 Qg4 Nce5 Rc8 Nc4 Qge2+
Rr1QQr2/2KbP3/1n6/1Nb2N1p/1kBb1Rnr/1B2B1p1/4n1q1/4nNQr b - - 0 1 illegal: No proof kernel
1b3Nn1/1rBP1q2/3Q4/1Qr1nR2/1Np1R3/R2b2QB/2pk2b1/brN2nKn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 e4 Kd4 g5 h5 e5 f5 g6 a5 b6 c5 b7 h3 g7 f3 e6 f4 d3 h4 e7 h2 e8R h3 b5 a4 b6 c3 Re6 a3 Ra2 c2 Rg6 c4 Nc3 Ra5 Re6 Bd6 Nd5 Rh7 Nb4 Kc3 d4 Qc7 d5 Nd7 b8Q Bb7 Re4 Ne5 Bg2 Bc6 b7 Qf7 Bf1 Bc7 d6 Rc5 Ra1 a2 Ne2+ Kb3 Rg1 h1R Rg5 h2 Rf5 Bd5 Qe8 Bb8 Bh3 Bc6 Qd4 Rg1 Bd2 Rb1 Qd5 Kb2 Nc1 h1N+ Kf1 f2 Qe7 Bc7 b8N Bb7 Be3 Kc3 Nd7 Bb8 Nf8 Bc6 Kg2 f1B+ Kg1 f3 Bf4 Bd3 Qe8 Ba8 Qb5 Bb7 Bg3 Kd2 Qe6 Rh6 d7 f2+ Kg2 f1N Kg1 Bd5 Qe7 Rb6 Qd6 Rb7 Bh2 Ne7 g8Q Bc6 Qg3 Ng8 Rg4 Bg2 Re4 Rb3 Rb1 a1B Rb2 Ra7 Ra2 Rb7 Ra3 Rb1 Qd4 Nc6 Qgf2+ Kd1 Bc7 Ne5 Qg3 Kd2 Qd6
1b3Bq1/1rp3Qk/nB1R2N1/3p1K2/2bb1Qn1/2r2R1P/B1Nr1R1N/nn1b4 b - - 0 1 illegal: No proof kernel
2bQ4/2NR1Bqq/qqB5/2N1nRB1/k1bbn1R1/3b2pr/1PrpQ1K1/3N4 b - - 0 1 illegal: No possible last move
n2R1rk1/b1Br4/RN2bBB1/n1Q1q1n1/bN1P1npQ/1q2N3/1Qp5/2K4b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 c5 e4 a5 h4 g5 e5 f5 b6 Kf7 b5 a4 h5 a3 h6 a2 h7 f3 b7 c3 d3 f4 b6 c4 Rh3 c2 Kd2 c3+ Ke1 g3 Rh6 f2+ Ke2 g4 Rc6 f3+ Ke3 g2 Nh3 g1N Nf4 Na6 b8Q Ne2 b7 Qd5 Qe1 Be6 Ng2 Nf4 Nd2 Nh6 Rd6 Ra7 Nc4 Nc7 Rd8 Na8 Nb6 Qb3 d4 Bc5 Bb5 f1B Qh4 f2 Bd3 Rf8 h8B Kg8 Bf6 Nf7 Bg6 Ng5 Qd6 Bb5 b8N f1B Na6 Be8 Nb4 Ba4 Ba3 c1N Qc6 c2+ Kd2 Re8 Ne3 Rd7 Qc7 Bfc4 Qb7 Bed5 e6 Bh1 e7 Rf8 e8Q Bcd5 Qe5 Be6 N6d5 Ba7 Nb6 Rg7 Qc5 Rd7 Rb1 a1Q Rb2 Ncd3 Ra2 Ne5 Qb8 Qac3+ Kc1 Qe1+ Nd1 Bb5 Nd3 Ne4 Nd5 Nc6 Bb4 Qa4 Ba5 Qe2 Bc7 Ng5 Ra3 Qb4 Ra6 Qe5 N1e3 Ba4 Qbb6 Qa3+ Qb2 Qb3 N3b4 Na5 Nb6
2B3b1/4k1r1/Kb1nRb1Q/1r1r2nN/1NQppBN1/P2Q1qR1/2b3q1/1R2r3 b - - 0 1 illegal: No possible last move, all moves rejected
K1b1k3/bQ1N2n1/1B2BRnQ/B5rp/4n1n1/pPqrQ3/r4N2/Nrq2R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 f5 c4 h5 g4 d5 e4 a4 g5 d3 b3 d4 e5 h3 c5 d2 b6 h2 e6 d3 g6 Bd7 b7 Qa5 c6 Ne7 c7 Nbc6 b8B Bc8 g7 Qc3 g8N Nd8 Na3 Ng6 e7 Ne6 Bh3 Ng7 Nc2 Ra7 Qf1 d1N Be3 d2 Qa6 Nf2 Rf1 d1R Na1 Ng4 Rf2 Rd3 Nf6+ Kf7 Qb7 Rg8 Nd7 Ke8 Rf1 Ra5 Ba7 a3 Bb6 Rad5 Ba5 Re5 Kg2 f3+ Kg3 f2 Kf3 f4 Qc6 Nf6 Be6 Ng4 Nh3 Rg5 Ke4 f3 Rhg1 h1N Beb6 Rd2 Qd6 Ra2 Qd2 Rd5 Qh6 Rd1 Rg3 Rb1 Rg2 Ng3+ Kd5 Ne4 Rg3 Qb4 Kc6 Qc3+ Bc5 Rd1 Kb6 Rd3 Ka7 Nh8 Ka8 Ng6 Re1 f1R Nf2 Rg1 Bcb6 Rh1 Rf1 Rg1 Nh3 f2 Rf3 Rh1 Rf6 Rg1 Rd1 f1Q Re1 Qf4 Rf1 Qfc1 Nf2 Rg2 Nh1 Rgb2 Nf2 Rb1 Rf3 Nf4 Bc5 Nf5 Bd4 Ba6 Nb6 Ng5 Bc8 Kf7 Bd7 Rg6 c8Q Ng7 Qc6 Bc8 Qb5 N5e6 Qa6 Nc5 Qb7 Rg5 Bf5 Ng6 e8Q+ Kg8 Qe2 Ne4 Nd7 Kf7 Be6+ Ke8 Rf6 Bc5 Qe3 Ba7 Bdb6
K1Q4B/8/2Brb1Qn/1bkBrpqN/R1n1p1n1/6Nq/1N3Q1P/2n1bRb1 b - - 0 1 illegal: No proof kernel
2QRN3/b3B3/n1n1b2K/p2rqQ1n/Q2N2pP/BBb2qr1/4Rk2/N1n1b3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Ke6 h4 Kf5 c4 a5 b4 g5 c5 e5 b6 d5 b7 e3 b5 Ke4 c6 g3 b6 d3+ Ke1 g2 f5 e2 Kd2 e1N c7 d4 f6 Nc6 b8N Qd5 f7 Nf6 b7 Nc2 Ra3 Bg7 f8B Be6 c8Q Nh5 Qc7 N2b4 Qd7 Na6 Bc5 Rg8 Ne2 Kf3 Rh2 g1B Be7 e4 Qa4 Qe5 Rb3 Rd8 Na3 g4 Qc8 Rd5 Nd7 Rb8 Nf6 Bh8 Bg2+ Kf2 Nc2 Bg7 Ne8 e3+ Kd1 d2 Na1 Bf6 Rd3 Bg7 Kc2 d1N Bca3 Nc3 Rd2 Bf6 Kd3 Na2 Qd7 Rd8 b8Q Bg7 Qbc8 Nc1+ Kc4 d3 Nd4+ e2 Rd1 e1B Bf1+ Kg3 Re2 d2 Bg2 Bf7 Qf5 Be6 Be4 R8d7 Bc2 Rb7 Kc3 Rb3+ Kc4 Rf3 Bb3 Bh8 Nb5 Ba7 Nd4 Na2 Re3 Kf2 Kd3 Qc7 Ke4 Nc1 Nb5 Bc3 Nd4 Kg1 Re2 Rg3 Bed6 Nf6+ Kf4 Nh5+ Kg5 Qb8 Be7 Qe5 Re3 Kg2 Kh6 Kg1 Qh7 Kf2 Qf5+ Qf4+ Kh7 Rb5 Nf3 Qe5 Kh6 Rc5 Rd3 Rb5 Rd8 Rd5 Nd4+ Rf3 Qg6 Rg3 Qb1 Na2 Rc1 d1Q Qf5+ Qf3 Rb1 Nc1 Rb2+ Kg1 Re2 Kf1 Re3 Kf2 Re2+
3Qb1k1/q1nRrnnN/3RQ2p/4n1Q1/Br1NqbB1/N3pb2/4B2P/K3b3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 f4 c5 f5 cxd4 Bf4 gxf4 Kd2 Kf7 Kc1 a5 b4 e5 Kb2 d5 c4 f3 g4 e3 b6 a4 g5 e4 b7 e2 f6 e1B b5 e3 c5 a3+ Ka2 f2 b6 d3 c6 d4 c7 d2 Ne2 d3 Bg2 f1N Nd4 Ra7 Nb5 Nd7 b8Q Ne5 b7 Bd7 c8B Ng3 Bf1 Nf5 Qd6 Be8 b8Q Ngh6 g6+ Kg8 g7 Re7 Qc6 Qd4 Be2 Nhf7 Qe6 Qe4 Nd4 h6 Qb5 Rh7 Rg1 Rb7 Rg6 Bd6 Qbd5 Rb4 Bd7 Bc7 Ba4 Bb8 Qd8 Bc7 Qc2 d1N Qc5 d2 Qcd5 Qd3 Qg2 Qe4 Qg5 Bb8 Nc3 Bd6 Ncb5 Bb8 Rb1 Nc3+ Ka1 a2 Na3 d1B Rb3 Nd5 Rd3 Nc7 Bg4 Rh8 Rd2 Bf3 Rd3 Kh7 Rd2 Rf8 g8B+ Kh8 Bh7 Ng7 Nc4 Nd3 Qa6 Nd5 Nf5 Bb5 Bd1 Bf4 Be2 Qe7 Qac8 Qa7 Na3 Nd6 Bg8 Nc7 Bb3 Bd7 Ba4 Ne5 Rd5 Kh7 Nd4 Re8 Qa6 Re7 Qac8 Rc4 Kb2 Be8 Qcd7 Kg8 Qc6 Ndf7 Rd7 Nh8 f7+ Kh7 f8N+ Kg8 Rgd6 Nhf7 Qd5 a1Q+ Kb3 Qc1 Ka2 Qc2+ Ka1 Qe4 Qe6 Rb4 Nh7
3KQ1n1/4R1pB/n3Rr2/Nn3N2/rQR1bq2/q1bb1pQ1/1N2P3/nbB1k3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 b4 g3 h4 Kg4 c4 f5 b6 d3 h5 f3 c5 g2 h6 Kg3 h7 Kf2 b5 a4 b7 a3 c6 f4 b6 d2 c7 a2 Rh2 Qf6 Nc3 Ra4 Rh1 Bb4 Rb1 a1N Qb3 d1N Rh6 Na6 b8Q Ke1 b7 f2 Rb2 d6 Kc6 Bf5 c8R Bd3 Kd7 d5 Rc4 d4 Kc8 Qe5 Kd8 Bb1 Re6 d3 Qc7 d2 b8N Qc5 Nc6 f3 Nd5 Bc3 Ne3 Qa3 Nh3 g1Q Na5 Qh2 Nf5 Qf4 Qb4 Be4 Bg2 f1B Nf2 Bd3 Bh3 Bb1 Bg4 Bh3 Bh5 Bg4 Bg6 Bh3 Nh6 Bhf5 Qe5 Bfe4 Nf5 Ne3 Ra2 Nec2 Nd1 Nd4 Nb2 d1B Qed6 Bdc2 Re7 Qb3 Ra3 Qa2 Rb3 Qa3 Re6 Bd2 Re3 Nb5 Re7 Bed3 R3e6 Bc3 Qd7 Nf6+ Qe8 Rf8 h8Q Ng8 Qh2 Rf6 Bh7 Be4 Qg2 Bcd3 Qg3+
1Nk3b1/Bn1R1pP1/Q4b2/2np1bB1/QrnQb3/5N1r/K2nB2R/3R2qq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 e4 Kd7 g4 a5 b4 h5 c4 a4 Kc2 a3 Kb3 d3 b6 f3 e5 h3 c5 h2 b5 h4 g5 d2 g6 f2 g7 a2 b7 h3 b6 Nf6 Bc4 f1B Qe1 d1N Nd2 Ne3 Ne2 Ne4 Qd1 Be7 Nf3 Na6 b8B Nd6 b7 Bf6 Ba7 Rb8 Ned4 Bd3 Nc6 Bh7 Be2 Nec4 Qd4 Bg8 e6+ Kc7 e7 Bf5 Rd1 h1Q e8Q h2 Bg5 Rh3 Rd2 Qd7 Rad1 a1N+ Ka2 Nb3 Rc2 Nbd2 Qee4 Re8 b8R Nb7 Rd8 Qe6 Qg4 Qe3 Nb8 Re4 c6 Qeg1 Rd7+ Kc8 c7 Nac5 Rb2 Na3 Qa4 Rb4 Qd4 Nac4 Bd3 Nde4 Rf2 Ned2 Be2 Qe1 Rg2 Qhg1 Rf2 h1B Rh2 Bg2 Qe5 Qh1 Qd4 Qeg1 Ne5 Bge4 Nf3 Nba5 Rd6 Kb7 c8Q+ Ka8 Qd8 Kb7 Qb6+ Kc8 Rd7 Nab7 Qba6
2q2qQ1/1n1PN1n1/5k1b/2B1Q3/BB6/2pbR1pK/rqRNbbQ1/2R1rq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 Kg2 c5 b4 f5 h4 a5 e4 g5 d4 a4 b6 g3 b5 f3+ Kh3 a3 h5 c3 h6 a2 d5 c2 d6+ Kf6 h7 f2 d7 g2 b7 f4 b6 c4 Qg4 f3 Be2 f1B Rh2 f2 Bd2 c1Q Bb4 Ne7 Nc3 Na6 b8Q Nf5 b7 Nc5 Nf3 g1B+ Qg2 Bh6 Nd2 Ng7 Bd1 Bd3 Ba4 Re8 h8Q f1Q Qg8 Bf2 Rb1 Qa3 Rc1 a1Q Qg3 Ra5 b8B Ba6 Ba7 Nb7 Bac5 Q1b2 Qc7 Qc8 e5+ Kg6 e6 Kf6 e7 Bb5 Ne2 c3 Nf4 Be2 Ng6 Bbd3 Qg3 g4+ Kh4 Rd8 e8R Ra8 Re3 Re8 Ba5 Qab4 Ne7 Qf4 Bab4 Ra5 Bc2 Ra2 Ba4 Qd6 Nf5 Qf8 Ne7 Bg1 Qb8 g3 Kh3 Bf2 Nf3 Ra1 Ng6 Be1 Re5 Ra2 Qc7 Re6 Ne7 Bd1 Re4 Qff2 Qf1 Qg1 Rhc2 Bf2 Qg2 Qf1 Nd2 Re5 Rg4 Re2 Re4 Re1 Re3 B1e2 Qe5#
2q1N3/1Np1bB2/1n1RQ1r1/pq3r2/2n1k3/Qr2B3/bQ1Prb1K/2RRb1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 Kg2 Kd6 b4 Ke5 h4 f5 e4 a5 b6 g5 b7 c3 h5 c2 b5 f3+ Kg3 f4+ Kh2 f2 h6 f3 b6 Nd7 b8R Ngf6 h7 Be7 b7 Re8 h8Q Ra6 Ba3 c1R Nc3 Nb6 Nh3 Rb1 Bc4 f1Q Qc1 f2 Bf7 Be6 Bc5 Qc8 Na4 Rb3 Be3 Qb5 Rd1 f1R Nf4 Nc4 Nd5 Rf5 Qa3 Rd6 Nc5 g3+ Kg1 g4 Rac1 g2 Kh2 Rb6 Ra8 Ra6 b8B Rd6 Nb7 g1B+ Kh1 g3 Ra6 Rb6 Ba7 Bf2 Qg7 g2+ Kh2 Bh4 Bg1 Rc6 Bae3 Be1 Rb6 Rg8 Qh8 Rg6 Ra6 Rc5 Rd6 Rf2 Qg7 Re2 Qh8 Qa8 Qb8 Nd7 Nf6 Ndb6 Ne8 Qaa6 Bd4+ Kf4 e5 Ke4 Bde3 Qa8 Qc8 Bd5 Qe6 Qc8 Qf6 Bc6 e6 Rf5 Qfb2 Bd5 Ng7 Bg5 e7 Bgh4 e8Q+ Be7 Qg8 Be6 Bc5 Bd5 Bge3 Be6 Ne8 g1B+ Kh3 Bgf2 Kh2 Rgg5 Qg6 Rg1 Qgf6 Rg6 Bcd4 Bd5 Qe6+ Ne5 Qba2 Bfh4+ Kh3 Rc3 Q2b2 Ba2 Bc5 Bhg3 Bf4 Rb3 Bg1 Bgh4+ Bfe3 Bhf2 Qd7 Nec4 Kh2 Rff6 Qh3 Rf3 Qd7 Rf5 Qe6+
nRKQ4/qppRN2q/k7/1nP4B/rN4BN/5QB1/3n1rRn/r3rn1b b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Bg2 Bh6 Bh3 fxg4 Bf1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bf5 Ne2 Be6 Ng1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Ke5 h5 d4 e3 c4 b3 f4 h4 a4 g2 a5+ Ka6 d5 g3 g6 e2 d6 e1R+ Ne2 g1N f5 b2 d7 g2 Ke6 h3 g7 h2 f6 Nh6 g8B Nf7 Bf4 Nd6 f7 Nb5 f8N Nf3 Bg3 g1Q Bf7 Qa7 Rg1 h1N c5 Nh2 Ng6 Rf8 Nd2 b1N Nf3 Nd2 Bh3 Rf1 Ra3 Rf2 Be8 Rf4 Bg4 Ra4 Rd3 Ra1 Bf7 Qh8 Nef4 Qh7 Nfh4 Ra4 Nd5 Ra1 Bd6 Ng3 Rg2 Ngf1 Qf3 Ra4 Bg3 Ra1 Kf5 e5 Ke6 e4 Nge7 e3 Bfh5 e2 Rd4 Nc6 Rd3 Ne5 Rd4 Nec4 Rd3 Nb6 Rd4 Nc3 Nb4+ Kb5 a6 e1R+ Kf6 Ka5 d8Q Bf5 Rd7 Be4 Ke6 Nb5 Qh8 Rf8 Qg8 Rf4 Qd8 Qa8 a7 Qb8 a8R+ Qa7 Rb8 Na8 Rd6 Bd5+ Kd7 Rfe4 Na6 Rea4 Nb4 Bc6+ Kc8 Be4 Nbc6+ Ka6 Rd7 Ree2 Qa3 Bc2 Rg1 Be4 Qd3 Bg2 Qf3 Bh1 Rg2 Ree1 Nb4+
1R2qr1k/1B2Qb2/qNr1p1N1/b2n3p/2Rb1b1N/2qb4/KQ2QR1P/6Bq b - - 0 1 legal: proof: d4 f5 b4 a5 e4 axb4 g4 fxe4 f4 Nc6 f5 Ne5 d5 Ng6 d6 Nh4 f6 Nf5 gxf5 cxd6 Bb5 d5 Bf1 d4 Kd2 Kf7 a4 g5 c4 h5 Kc2 d5 Kb2 b5 c5 b3 c6 e3 c7 b4 a5 g4 a6 g3 a7 e2 Nc3 e1B Bg2 d3 Ne4 d4 Nf2 d2 Bb7 d3 Ne4 g2 Kb1 b2 Qg4 d1Q Nf2 d2 Qd4 Qe8 Ne2 g1B Nf4 Qda4 Ng2 d1Q Nh4 Rh6 Nd3 Qd2 Ra2 Qc3 Be3 Be6 c8Q Qa6 Qcc4 Bd2 Bf2 Bf4 Qb6 Rc8 a8N Rg6 Bc5 Bd4 Rc1 Rc6 Qbb5 Rg2 Qb3 Rf2 Nb6 Bc4 Qc2 e6 Qb3 Ne7 Ne5+ Kg8 f7+ Kh8 f6 Nd5 Qc2 Be7 Qe2 Bd8 Rc2 Bd3 f8Q+ Kh7 Qd6 Kh8 Qe7 Bg6 Ra4 Bf7 Ka2 b3+ Ka3 Bg8 f7 b1B f8R b2+ Qb3 Rf1 Rd2 Bd3 Ka2 Bc7 Qa3 Rf2 Rc4 Rf1 Na4 Ba5 Nb6 Qg6 Rb8 Qe8 Qg4 Bf7 Rf2 Bh7 Qb3 Bd3 Qe2 b1Q+ Ka3 Qbe1 Ka2 Qec1 Qbb2 Q1e1 Qf3 Qe4 Qfe2 Qh1 Qb1 Bh6 Rf4 Bg8 Rf6 Bg1 Qbb2 Bd2 Rg6 Rf8 Rg2 Bf7 Bd4 Bge3 Bc5 Bf4 Bg1 Bde3 Rf2 Bd4 Neg6+
BBQ1q3/B3NrqN/q1nQ4/b4nPK/2pp1bQN/2p1k1rR/5n2/R2b4 b - - 0 1 illegal: No proof kernel
q4k2/qN1bn3/RB1QQ1Rn/2QqP3/3r1r1b/1n4pR/NKp3pB/r6B b - - 0 1 legal: proof: f4 d5 g4 h5 c4 dxc4 b4 hxg4 f5 a5 bxa5 e6 Qb3 exf5 Qd1 f4 d4 g5 Kd2 b5 Kc3 c5 a4 f5 e4 f3 h4 f4 a6 f2 a7 f3 d5 Ke7 h5 Nc6 Bg2 f1Q e5 f2 a5 Bd7 Nh3 Qg1 a6 Qe8 h6 f1R h7 b4+ Kc2 c3 Nf4 c4 Ne6 Rf5 Bf4 b3+ Kc1 b2+ Kc2 Bg7 Rh6 Bf6 Nc5 Kf8 Bh2 Nce7 Bh1 Rf1 Nb7 Qf7 Nd2 b1N Ne4 Nd2 Qc1 Nb3 Rg6 Qe8 Qf4 Rd1 Qf5 Qb6 Qe6 Rd4 Nd8 g3 Ra5 g4 Nb7 g2 d6 g3 Ra1 Rd1 Ra3 Ba4 d7 Rd4 d8B Bd7 Ra4 Bg5 Kb1 Qa5 Ka2 Qd5 Ra5 c2 Nc3 c1Q Ra3 Qd1 Kb2 Rc8 a8Q Qf1 Qa7 Ra8 Qc5 Qe1 Ne2 Qa5 Nc1 Qb6 Qcd6 Qba5 a7 c3+ Ka2 c2 Kb2 Rc8 a8Q Qb6 Qa7 Ra8 Qa5 Ra7 Bc7 Qa8 Ra1 Ra6 Qac5 Qba7 Ra5 Bf6 Bb6 Bg5 Rb5 Ra1 Ra5 Nf6 Rg7 Ng4 Ra6 Rg8 h8R Bf6 Rh5 Nh6 Rh3 Bh4 Rg4 Rg5 Na2 Rf5 Rg5 Rff4 Rg6
B2N2b1/4b2n/1bQr2RK/q1p1kr2/2nQB2N/5n1p/2RB1p1P/1N3qRq b - - 0 1 legal: proof: d4 b5 c4 e5 f4 exd4 a4 g5 axb5 gxf4 Na3 d5 Nb1 dxc4 Kf2 Ke7 Kf3 Kd6 b4 a5 e4 f5 g4 h5 g5 c3 b6 d3 g6 d2 b7 a4 g7 a3 b5 a2 b6 c2 Bh3 h4 Ne2 Nd7 b8Q Ne5+ Kf2 f3 Ke3 f2 Kf4 Nf3 b7 f1Q Ng1 Rh5 Bg2 Ra6 Qa8 h3 b8N Be7 Nc6 Nf6 g8R Nh7 Rg6+ Be6 e5+ Kd5 Qb7 Bg8 e6 Qa8 Nd8+ c6 Ba3 c1Q Bb4 Qa3 Qa4 d1N Bd2 Ne3 Qb2 c5 Qb6 Nc4 Qbc6+ Kd4 Qb4 Qa5 Qba4 Bh4 e7 Qb7 e8B Be7 Bf7 Rb6 Bd5 Qba8 Qcb5 Rd6 Qc6 Qb7 Be4 Qba8 Kg3 f4+ Kg4 Ke5 Qd1 Rf5 Qda4 Rf8 Kh5 Rf5+ Kh6 Qb7 Na3 Qba8 Rc1 a1B Nb1 Bd4 Rc2 Bf2 Ne2 Bfh4 Rg1 Qb7 Nd4 Bhf6 N8e6 Bd8 Bh1 Bb6 Nd8 Be7 Qb4 Ne1 Bhg2 f3 Qba4 f2 Bh1 Rg5 Nf5 Nf3 Nh4 Rf5 Qe8 Qc8 Ba8 Qb7 Qec6 Nfg5 Bd5 Nf3 Be4 Ne3 Bd3 Nfg5 Qc7 Qh1 Bde4 Nf3 Qb7 Rff6 Qc4 Rf5 Qd3 Nc4 Qc6 Qe2 Qe3 Qf1 Qd4+
1B2q1k1/1B1Q2N1/2bKnp1B/3Rp1q1/1r1P1q1N/1p1R1NbQ/1r1r3R/2n1n3 b - - 0 1 illegal: No proof kernel
b1N2q1B/3R2r1/qNp1N2p/4QrR1/B3p2k/nn2bB2/K1bRP1Q1/n6r b - - 0 1 legal: proof: f4 d5 a4 g5 c4 dxc4 h4 b5 axb5 Qd6 h5 gxf4 h6 Qxh6 Ra6 Qh5 Ra1 Qh2 d4 a5 Kd2 f5 Kc2 Kf7 b4 Kf6 Kb2 Kg5 g4 e5 b6 a4 d5 h6 b5 c3+ Ka2 c2 b7 a3 b6 Ne7 d6 Nd7 b8Q Rh7 b7 Ra5 Nh3+ Kh4 g5 f3 g6 f2 g7 f4 g8B f3 Bf7 Nd5 Rg1 N5b6 Rg5 Nc5 d7 Rg7 d8R Nb3 Nf4 Bf5 Bg8 Bc5 Nd2 Be3 Rd7 Nc4 Bg2 f1Q Bb2 c1R Ne6 f2 Bf3 Bc2 Ne4 Qf4 Bc3 Qf8 Qd5 Qh3 Bb2 f1B Nd6 Bg2 Nc8 Rh1 Rd1 Qhf5 Rd2 Qd3 Qa8 Rb5 Qc5 Qdd6 b8N Qa6 Bf7 Ra5 Be8 Rb5 Bfh5 Bc6 Bf3 e4 Qe5 Ra5 Qa7 Ba8 Qad4 Rg8 Qg7 Rf5 Qge5 Rg7 Qdc5 Bf4 Qg1 Be3 Qg2 Bd5 Rf7 Ba8 Ba4 c6 Nd7 Nc1+ Ka1 a2 Ndb6 Na3 Bc3 Nb3+ Kb2 a1N Rfd7 Rh7 Ka2 Rhf7 Qd5 Re7 Bh8 Rg7 Qe5
Rb2qNk1/2B5/1pbq2pP/r1QR1RQ1/2p2qN1/n4Q2/K1B1br2/1n2B2r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 c5 h4 f5 d4 Kf7 Kd2 g3 Kc2 g2 Kb3 c4+ Ka2 b6 e4 f3 a5 f4 d6 g6 a6 f2 a7 f3 e5 Kg7 h5 Bb7 d7 Nf6 h6+ Kh7 d5 Bc8 e6 Qe8 d8Q Na6 e7 Nc7 d6 Nfd5 d7 Nb5 Ne2 g1Q Na3 Kg8 Nd4 Bb7 Nac2 Na3 Ne3 Qg3 Rh5 Qd6 Ne6 Bc6 Bd3 f1B Bd2 f2 Ng4 Be2 Be1 f1Q Bc2 Qff4 Rf5 Bg7 Qc8 Be5 d8B Rh7 Qd3 Rf7 Rd1 Rf6 Nf8 Nc3+ Ka1 b3 Qf3 Rf7 Bc7 Ncb1+ Rd4 b2+ Ka2 Nd2 Rd5 b1R Qe6 Rc1 Qf6 Ndb1 Qg5 Rd1 Bc3 Rh1 Be1 Rc8 a8Q Rd8 Qa6 Ra8 Qb5 Ra5 Qc5 Qf6 Bd8 Bb8 Bc7 Q6d6 Bd8 Qed7 e8R Rf6 Bc7 Q7e7 Rd8 Qe8 Rc8 Qfe3 Qh3 Ba7 Ra8 Bb8 Rfe5 Rf2 Qf3 Qf4 Rf5
K2BQnq1/b5N1/p3QRn1/q3PQb1/b1R2qn1/kp1rp3/N2r4/B4N1B b - - 0 1 illegal: No proof kernel
2K3Rb/4k2p/1qbNBNQ1/B2R2n1/4N1p1/rbQ4q/P1pRrn2/Q3n1r1 b - - 0 1 illegal: No proof kernel
Q1qn1bn1/2bQ3p/1N1P4/1bRpBN2/1q1r3R/2B1R2p/2r1B3/qQr2k1K b - - 0 1 illegal: No proof kernel
R1k2B2/4Q1rp/R1Npp2R/2Nr2q1/Q1PrQq2/2NBb1q1/3bK1b1/1n1n4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 a5 g4 d6 c4 Kd7 b4 e6 g5 d3 g6 e3 g7 e2 b6 d2+ Kf2 e1B+ Kf3 h3 f5 h2 b7 a4 f6 a3 b5 a2 f7 Ne7 g8Q Nd5 b6 Bh6 f8Q Be3 Bg2 Nc3 Qg4 Qg5 Qd4 Rg8 Bh3 Ra5 Qh4 Rg7 Qa4+ Nc6 b8R d1R b7 Rd4 Nd2 Rad5 Ra8 Nd1 Nb3 B1d2 b8N+ Kc7 Nc5 Bb7 Bb2 Ne5+ Ke2 Nf3 Qe7+ Kc8 Qe4 Bc6 Bf5 Qf4 Rb1 a1Q Ra6 Qa3 Ra1 Ba8 Nc6 Qb3 Kf1 Qd3+ Ne2 Qa3 Nc3 Qg5 Rg1 h1Q Ke2 Qhh4 Rh1 Qhf4 Ra2 Bc1 Rh6 Nd2 Qh1 Bb7 Bd3 Nb1 Qe4 Bcd2 Nb5 Qb4 Qh1 Rf7 Ra5 Re5 Qb3 Rde4 Nb8 Bc1 Ra8 Ref5 Bf6 Rd4 Bg7 Re5 Bf8 Rg7 R2a3 Be4 Qf3 Red5 R3a6 Qa5 Qa4 Qd2+ Kf1 Qdh2 Nc3 Qhg3 Ke2 Bcd2 Qh1 Qff5 Qh4 Bg2 Qe4 Qff4 Nc6#
1rR2b2/1N4p1/2RB2N1/1bnb2K1/2npQBQn/4R1pq/4Pqqk/1B3rN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Ke6 c4 Kf5 h4 d5 h5 a5 c5 d3 b6 f3 Ke3 d2 b7 f2 h6 a4 h7 a3 b5 a2 c6 d4+ Kd3 Kf4 b6 Kg3 Ke4 f5+ Ke5 f4 c7 f3 Rh5 Nc6+ Ke4 Qg5 b8R Na5 b7 Bd7 c8Q Bb5 Bg2 f1Q Rh6 f2 Rc6 Kh2 Nc3 Nh6 Na4 Nc4 Qc2 d1B Nc5 Nf5 Bf4+ g3 Qb1 Nh4 Qg4 Qh6 Rbc8 Bb3 b8B Rg8 Bbe5 Rb8 h8N Qh5 Bf3 Qg2 Ng6 f1Q Bd6 Qff2 Nb7 Qh6 Qc2 Qh8 Rd1 a1N Rd3 Ba2 Re3 Nb3 Bfe5 Nc5+ Kf4 Bb3 Kg5 Nf5 Nf4 Qff1 Nfh3 Be7+ Bf6 Nb6 Qc4 Rf8 Qc2 Bd5 Be4 Nc4 Nf4 Qhh3 Ng6 Nh4 Bf5 Rf7 Qd3 Bf8 Bfe5 Qe1 Be4 Rf1 Bf4 Na5 Qa3 Qef2 Bb1 Nc4 Qd3 Nb3 Qdf5 Nc5 Qe4
Qr3Q2/1qbN1P2/1N1rrQ2/n7/q2np3/1NBpn1p1/4R2k/B1R1KbqB b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 h4 Kg6 c4 Kf5 b4 a5 h5 d5 b6 e5 h6 g5 b7 a4 h7 g3 c5 e3 b5 d3 b6 g4 c6 d2+ Ke2 g2 c7 d4 Na3 g3 Bb2 Kg4 f5 Qe7 f6 Nh6 f7 Ra6 Nc4 a3 Qc1 d1N Ra2 d3+ Ke1 e2 Qb1 Ne3 Qa1 Nhf5 Nd2 Nc6 b8Q Na5 b7 Nd4 Qa8 Rd6 Ngf3 g1Q b8Q Be6 c8N Qb7 Nb6 Bh6 Qc8 Bf4 Qc5 Rb8 Bc3 Bc8 Rc2 a2 h8B Be6 Qb2 a1Q+ Rc1 Qa2 Nb3 Qa4 Rh2 Bd7 Rg2 Kh3 Qc8 Be6 Qf8 Bd7 Nfd2 Bg4 Nd7 Bf3 Rf2+ Bg2 Nc4 Kh2 Ncb6 e4 Kd2 e1R Re2 Re8 Be5 Ree6 Bf6 Qf2 Bg7 Bh3 Bg2 Qg1 Qa3 Be5 Qc5 Bf4 Qg5 Rf1 Qf6 Rf2 Bh1 Bf1 Bg2 Be5 Ke1 Bf4 Ra2 Rc2 Ba1 Rc8 Re2 Rb8 Qg6 Ndc6 Bgc3 Nd4 Qf6 Rd5 Rcc2 Bc7 Rc1 Rdd6 Bh1+
NN4bq/2r2pQ1/nR1Q4/P1k1bqq1/5Q1B/nKp5/NpR3r1/r1Rn3B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 Kc2 c5 g4 h5 a4 b5 e4 f3 g5 c4 g6 f2 g7 h3 a5 h4 Bg5 h2 Ne2 h3 Ra2 Ne7 g8Q Nf5 Nbc3 Ra7 Bg2 f1Q Bh4 Qg5 Qg7 Rg8 Qc1 b3+ Kb2 b4 e5+ Kd7 d6 Na6 d5 Rc7 Qd2 Ne3 Nd4 Qff5 Rc1 h1Q Nc6 h2 Qf2 Be7 Qf4 Bf6 Bf3 Qe1 Bh1 Nd1+ Ka1 Qf1 Rac2 b2+ Ka2 b3+ Ka3 Qf3 Na2 b1N+ Ka4 c3 e6+ Ke8 e7 Kd7 e8R b2 Re6 Qfh5 Kb3 Be5 Rf6 Qh8 Nb8+ Ke8 d7+ Ke7 d8N Na3 Ne6 Kd6 Nd8+ Kc5 d6 Bb7 d7 Be4 Rb6 Bd3 Ndc6 Be4 d8Q Bd3 Nd4 Be4 Bf3 h1R Nb5 Rg1 Bh1 Rg2 Qd3 Rd8 Be1 Rd4 Qdd2 Ra4 Bh4 Qfg4 Rb7 Nc4 Nd6 Re7 Nb5 Bh7 Nb4 Q4f5 Nc7 Ra1 Na8 Na3 Na2 Rc7 Rb6 Bg8 Qd6+
2R2qQ1/n3p1k1/1B1b1qN1/n2nPbB1/2R1p1pN/2rr4/1QR3Qr/1K1b2B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 h5 axb5 c5 g4 hxg4 e5 cxd4 Bg2 Bb7 Bc6 Bc8 Be4 fxe4 Kd2 Kf7 f4 d5 h4 g5 c4 a5 Kc2 a4 b4 g3 c5 g4 b6 g2 h5 a3 b5 a2 h6 Bg7 h7 Na6 c6 Bf8 b7 Kg6 b8Q Kf7 c7 Bh6 b6 Qe8 f5 Qf8 b7 Nc5 f6 Bd2 Ne2 g1N Nf4 Nb3 Qf1 Ne2 Ng6 Nc3 Qg2 Bf5 c8R Na5 Rh2 d3+ Kb2 Be3 Nd2 d4 Nf3 d2 Nfh4 d1B Qd6 d3 b8Q Bg1 Be3 d2 Rc1 Nb5 R1c4 Na7 Bb6 Bc5 Qc6 a1R Qd7 Ra4 Kb1 Bd6 Bg1 Ra2 Qb2 Ra3 Qc6 Rc3 Qcb6 Ke6 f7 Nf6 Qa6 Nd5 Qc6 Qe8 f8B Kf7 Bh6 Qf8 Bhe3 Kg7 Qd7 Rb8 Qe6 Rbb3 Bb6 Rd3 Rh3 Rbc3 Re3 Ba4 Re1 Bb3 Rc1 Ba4 Rc2 d1Q+ Qc1 Qd2 Qb2 Qg5 R4c5 Qgf6 Rc4 Rg8 h8B+ Kh7 Rd2 Bd1 Rc2 Kh6 Bg7+ Kh7 Bh6 Rh8 Bg5 Kg7 Nf3 Rh3 Nfh4 Rh2 Qg8+
2n2Rb1/2bp1pB1/BR2RrP1/3nn3/2Qqp3/4N1rN/kq1N2bQ/1q1QK3 b - - 0 1 illegal: No proof kernel
1q1BQ3/1p2N1N1/1QnbRp2/3B1p2/2qN1b1K/kB3r2/1Pn2R2/1rqr1Qb1 b - - 0 1 illegal: Other
N1b3K1/1pP1R3/3BBRn1/1p2R3/1Bq5/r1r3bp/QNQbNnqn/r5k1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 g5 h4 gxh4 b5 f5 b6 axb6 exf5 b5 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 c4 d5 g4 h5 Kg6 e5 Kf7 d3 f4 h3 a4 h2 g5 d4 g6 h4 c5 h3 a5 d2 f6 Ke3 f5 Kf2 c6 e4 g7 d3 c7 e3 a6 e2 a7 e1B Na3 Qd4 Ne2 Nd7 Qc2 d1N Bd2 Bd6 Bb4 d2 Nc4 Bg3 Nb2 Ne7 g8Q Ng6 Kg7 Rh4 Qa2 Qg4 f7 Qc4 f8R Nde5 f6 Nf3 f7 Rg4 Rg1 h1Q Kg8 Nh2 Bg2 Rh4 Bd5 Qg2 Be6 Rf4 Re8 Rf3 f8B Rc3 Bfd6 Re3 Rh1 Rc3 Ng1 Kf1 Re7 Nf2 Rb1 d1R Ne2+ Qg1 Ra1 Rdd3 Rd1 Re3 Rd5 Bd2 Rh5 Ra3 Rf5 Rec3 Rff7 Kg2 Rf6 Qf1 Nc1 Qfe2 Re1 Qf1 Re5 Kg1 Qab3 Qg2 Qa4 Rb8 a8N Ra1 Nb6 Ra8 Qa2 Ra5 Na8 Raa3 Ne2+
3K1R2/p1Bp1B2/2Q1qQR1/1r1r1p2/bP4k1/1nN1bnN1/N2Rn3/q2qQ1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 h5 g4+ Kg5 e4 f5 c4 d3 e5 h3 b6 h2 b7 h4 e6 h3 e7 d2 Kd6 f3 c5 f2 c6 Qb6 Nc3 Bg7 e8R Rh4 Qe1 Bd4 Bc4 f1N Ra2 Na6 b8N Be3 Nge2 Nf6 Ke7 d1Q c7 Nh7 Rf8 Qe6+ Kd8 Bb7 c8Q Bc6 Ng3 Ba4 Nc6 Rb8 Nb4 Rb5 Qc6 Nc5 b3 Kf4 g5 Kg4 g6 Ng5 g7 Nf3 Rd2 Rh6 g8Q+ Rg6 Nge2 Ng3 Nba2 Rg7 b4 Nb3 Qh8 Rg5 Nf4 Ne2 Nh5 Rg8 Qf6 Rg6 Rf1 h1R Ng3 h2 Bb2 Rg1 Rf2 h1Q Rh2 Qe5 Bf7 Qd6 Rh6 Qe6 Nd5 Qa1 Be5 Qh5 Bc7 Qh1 Qb1 Rd1 Ndc3 Qe1 Rb2 Rdd5 Rd2 Qd1 Qc1 Rg5 Qb1 Rh5 Qc1 Rh1 Qb1 Rg1 Qc1 Qc2 Qe1 Qcd1 Rg6+
2bK1R2/r3rQqN/B4r2/2RNr1b1/2RP2QB/2Bp4/nbpr2kp/1Qn5 b - - 0 1 illegal: No proof kernel
1rQ2r1N/K1b3k1/BQ1B1brp/p1Bb4/2P1n1np/4r2q/1N2NRR1/2rQ4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 b4 e5 f4 a5 g4 d5 f5 e3 Kd3 e2 f6 e1B b6 h6 b5 Be7 b7 Bg3 g5 Kf8 g6 Be6 f7 Qd7 b6 Kg7 f8N Nf6 Na3 Ne4 Nc4 Bf6 Ba3 Nc6 Ra2 Rb8 Nb2 Bg8 c3 Qh3 Ne2 Be6 Rg1 Bf7 Nd7 Rhf8 Bc5 Be6 Rg2 Bg8 Kc2 d3+ Kb3 d2 Ka4 d4 Kb5 d3 Ka6 Bd5 Rf2 Nb4+ Ka7 Nc2 Rg2 Ne3 Rf2 Ng4 Rg2 Rbc8 b8B Bf4 Bbd6 Rb8 b7 Bh2 Qc2 d1R Rf2 Ra1 Qd1 d2 Rg2 Rc1 Rf2 Rbd8 b8Q Rc8 Qb6 Rb8 Nd4 Bf4 Ba6 Bh2 c4 Bf4 Qf3 d1R Ne2 Rg1 Rg2 Ng5 Qfb3 e4 Qd1 e3 Ne5 Ne4 Nf7 B4e5 Nh8 Bh2 Ng3 e2 Rf2 e1R Rg2 Re3 Ne2 Kg8 g7 Bg3 Be7 Bc7 Bed6 Bfd8 Ng6 Kf7 g8Q+ Kf6 Qe6+ Kg7 Qc8 Bf6 Rf2 Nh2 Nh8 Rg6 Rg2 Ng4 Ra1 Qh2 Qd4 Rc2 Rf1 Rc1 Rff2 Qh3 Qd1
rRRb3N/2Qn2QK/2p1P3/b1Q1np2/pn3B1k/2n5/b1B2rnq/1N3N1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 b4 h5 g4 a5 d4 c6 d5 c3 b6 h3 b7 a4 d6 c2 d7 h2 b5 f6 b6 h4 Qd6 h3 Bg2 Be7 Qc5+ Kh4 Kf5 f3 Kg6 f2 e4 f1N g5 f5 e5 Ne3 Ne2 Qc7 d8N Nf6 Ng3 Nfg4 Nf1 Nd7 Nf7 Bd8 b8Q Rh5 Bd2 c1B b7 Rh7 Bd5 Ng2 Bf4 Bd2 Qba7 Ba5 b8Q Ba6 Bb3 Bc4 Bc2 Ba2 Nh8 Re7 Rg1 h1N Qc8 Qb8 Qcc7 h2 Qab7 Re8 Kh7 Ng3 g6 h1N g7 Ne4 g8B Nhf2 Bd5 Nc3 e6 Rg8 Qba7 Nd3 Bf3 Nb4 Qab7 Ne1 Bh1 Nge5 Rg7 Ng2 Rf7 Rg4 Rf8 Rg3 Re8 Rf3 Rg8 Be7 Rc8 Rf2 Qba7 Bd8 Qab7 Bd5 Ra3 Ba2 Rb3 Nb6 Qg7 Qd6 Qbc7 Nbd7 Bc1 Qd2 Rb2 Qf4 Be3 Qh2 Bf4 Nbd5 Rb7 Nb4 Rbb8
b3Q3/1rnR2B1/rPp1R2b/3QNn1r/2Br1bqp/p6B/2K4N/3Rkr1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Ke6 Kd2 Kf5 g4+ Ke4 g5 h5 b6 f5 g6 a5 g7 h3 e3 a4 d5 c3+ Kc2 a3 d6 h4 b7 h2 b5 c6 b6 f3 d7 f2 Bc4 f1R Qd6 f4 Bb2 f3 Nh3 f2 Nf4 Kf3 e4 Rh5 e5 Nh6 g8B Ra6 e6 Nf5 e7 Bh6 e8Q Qg5 d8R Qg4 Rd7 Re1 Bce6 f1R Qd5+ Kf2 Ng6 Rd1 Ne5 Rd4 Rg1 h1R Nd2 Rd1 Nf1 Ke1 Rg3 Rg1 Nh2 Rf1 Qh1 Bf4 Bc4 Bh6 Bge6 Bf4 Kb3 c2 Rb1 c1B Kc2 Bh6 Ba1 Bcf4 Rd3 Re4 R3d6 Rd4 Bb2 Ra8 Ba1 Na6 b8Q Bb7 Qbd8 Nc7 Qg5 Ra6 Qgg8 Qh3 Qgg2 Ba8 Qd5 Ne7 Bg4 Nf5 Re6 Qg3 Bh3 Qg4 Ng6+ Re4 Bg7 Re5 Rf6 Re7 Ne5 Rf7 Re6 Re7 Rb3 Rd4 Rd3 Nb5 Rdd6 Rb7 Rd7 Nc7 Rd1+
1Q1r4/4R2p/P1BqpN2/nbB1BpnR/R3Q1n1/K1bkn1nQ/4r1Nb/8 b - - 0 1 illegal: No proof kernel
1Bn1Br1b/n3bNpp/Qr5P/3Nr2q/1p2kNQ1/1r5R/1B3nR1/1rR2K2 b - - 0 1 illegal: Other
B2R1Nb1/1k1rPr2/bB1bN3/1nQ1pQ1B/4p1bp/2n1K1Rb/8/qr3R1Q b - - 0 1 illegal: No possible last move, all moves rejected
2Rnn3/B1pK1Qr1/B3p2N/1QNQ1bbq/n1nB4/5Rn1/r1Ppk3/1r2N3 b - - 0 1 legal: proof: e4 b5 d4 g5 h4 gxh4 a4 e5 axb5 exd4 e5 Nf6 e6 fxe6 Ra6 Ng8 Ra4 Ne7 Ra1 Ng8 Ke2 Kf7 Kd3 Kf6 Kc4 Kf5 b4 Ke4 g4 a5 f4 h5 f5 d5+ Kb3 a4+ Ka3 d3 b6 h3 b7 d2 f6 Ke3 g5 h4 f7 h2 g6 d4 g7 h3 Ra2 d3 Ne2 Be7 f8N Rh7 Nd4 Qd5 Nd7 Nf6 g8Q Nc6 b8Q Qh5 Nc5 Ba6 b5 Nd8 Kb4 a3 b6 Ne8 b7 Rg7 Bb2 Bg5 Qf7 Ra7 Rg1 h1R Nf5+ Kf2 Be5 h2 Rg3 Ra8 Rb2 a2 Rh3 a1N Nh6+ Nf6 Re3 Nb3 Bd4 Na5 Be2 Nc4 Rf3+ Kg2 Ka4 Ne8 Rb6 Rf1 Rd6 h1N Rd7 Nc6 Rd8 Ng3 Rc8 Nd8 Kb4 Nb2 Ka5 Bc4+ Kb4 Bd5 Kb5 Na4 Qe1 d1N Qa5 Be4 Nd2 Ra6 Qa8 Rg1 b8B Ndb2 Ba7 Nc4 Qd5 Rb1+ Qb4 Bf5 Qb3 Nb7 Qb2 Ra5+ Kc6 Nd8+ Kd7 Ra6 Qb5 Ra5 Re3+ Kf2 Nf3 d2 Ne1 Ra6 Bg4 Ra5 Rf3+ Ke2 Bh3 Ra6 Bf1+ Kd1 Qbc6 Rab6 Bb8 R6b2 Ng8 Na5 Ba6 Nc4 Ba7 Ra2 Nh6 Ke2 Qb5
bnKB1b2/1Q1r4/Bq2Bb1Q/r1k1PN2/2p1QRbp/3R1p2/n2n2Nr/1R6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 b4 h5 d4 c5 g4 a4 g5 f6 b6 c3 b7 f3 d5 f2 b5 a3 b6 a2 g6 c2 g7 h3 Qe1 h4 Nf3 h2 Nc3 Rh5 Rb1 a1R Nb5+ Kd7 d6 Kc6 d7 f5+ Ke5 f4+ Ke6 R8a6 e4 R6a5 e5 Rf5 Nd6 Qc7 Ba6 c4 Rf1 h1B Qe4+ Kc5 Ne1 Ne7 g8B Nec6 Ng2 Rf7 Nf5 Nb4 Bd2 c1B Bc3 N8c6 b8Q R1a2 b7 Qb6 Qc7 Rc2 b8Q Na2 Qbb7 Ba3 Qd8 Bb4 Qg5 Nb8+ Nd6 Rh7 Qh6 Bg7 Ke7 Bf6+ Ke8 Rg7 d8R Bg4 Nf5 Rd7 Be6 Ba3 Rfd1 f1N Rd4 Nd2 Rd3 Rf7 R8d4 Rc7 Ne7 Rb2 Kd8 Rd7+ Kc8 Rc2 Ne1 Bg2 Nf5 B2f3 Ng2 Rb2 Qe3 Bd5 Qe4 f3 Qa7 Ba8 Qab7 Nf1 Be1 Re2 Bf2 Nd2 Be3 Bb4 Bg5 Rf2 Nge3 Rh2 Ng2 Bg7 Bd8 Bf6 Qa7 Ba3 Qab7 Be7 Qh7 Bf6 Qf4 Bb4 Qhh6 Ba3 Qa7 Kc6 Re4 Bf8 Qb7+ Kc5 Red4 Bh5 Qe3 Bg4 Rf4+ Rd4 Qe1 Rd7 Qee4
3Qrnb1/2r5/1rBQ3p/3pNq1Q/3KnP2/R1R1p1rb/kn2N2b/N5BR b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 b4 Kd5 c3 e5 b6 a5 b5 d3 Ke3 Kc4 f3 a4 g5 h6 b7 h3 g6 a3 b6 h2 g7 a2 Qc2 Nf6 g8N Ra7 Ne7 Rg8 Bd2 Rg3 Nc6 Bd6 Ne2 Qf8 Bg2 Ra6 Qc1 Kb3 c4 Ra7 Be1 d2 c5 Qf7 Bf2 d1N+ Kd2 e3+ Kd3 e4+ Kd4 Qe6 Ne5 Qf5 c6 Nb2 Na3 Ra6 Rb1 a1R c7 Ka2 Qc5 Ra7 Nf4 e2 Nc2 e1R Ne2 e3 Bg1 Ne4 Rc1 Ra8 Qb5 Rb1 Na1 Rf1 Rc3 Rfc1 Nd3 Bf4 Ne5 d6 Qc5 Nd7 b8Q Nf8 b7 Be6 c8Q Bg8 Qbc7 Rb8 Q8d7 Re8 b8R Rc2 Qcd8 Rcc1 Bh3 d5 Qf7 Rc2 Qcd6 Rcc1 Qh5 Rc2 Rcb3 Rc6 Rd3 Rbc1 Rbb3 Rb6 Bg4 Rcc6 Rdc3 Rc7 Bf2 Qg5 Bd7 Qf5 Re1 h1B Bc6 Bg2 Rh1 Bh3 Bg1 Rg5 Ba4 Rg6 Bc6 Bh2 f4 Rg3 Ra3+
6NR/1b1Bq3/Nn1p2rQ/2b1PN2/bp1p1BB1/3QrQn1/2R1r1nr/1k1K4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 a4 Ke7 e4 Kf6 h4 Ke5 c4 f5 h6 g5 h7 b5 h5 b3 a5 f3 h6 f2+ Kd2 b4 a6 f4 a7 g4 c5 b2 c6 f3 c7 g3 Rh3 g2 Bd3 f1N+ Ke1 Ne3 Be2 Nf6 Ra2 Bb7 c8B Qe7 Nd2 b1B Nb3 Bc2 Qd3 Nh5 Nc5 Ba4 Na6 Ng3 Rc2 f2+ Kd2 f1R Bg4 Rf2+ Ne2 g1R Rh1 Rg8 h8N Ng2 h7 Re1 Rh2 Rg6 Nf7+ Kf6 Nh6 Ke5 Ng8 Rh1 Rh6 Rh2 Kd1 Rf3 Ng1 Re3 Nf3+ Kf4 Nh4 Ke5 Qc3 Kf4 e5 Ke4 h8Q Re2 Qb2 Kd3 Qb1 Rf6 Bf4 Qe6 Nf5 Bac6 Nc7 Bc5 Rb2+ Kc3 Bg5 d6 Qe4 Qe7 Bf4 Rg6 Rc2+ Kb3 Qg7 Nd7 Rh8 Nb6 Bd7 Ka3 Qh6 Kb3 Rc1 Ka2 Rc2+ Kb1 Qd5 Rd8 a8Q Re8 Qa5 Ra8 Qb5 Ra3 Qf3 Rae3 Qd3 Ba4 Na6
1q3bkb/4r1Q1/1p1B3R/rr1n1R2/3R1Bp1/1NNr3Q/1n2QpPK/N2b2n1 b - - 0 1 illegal: No proof kernel
1r5R/n2Rb2p/4b1Pq/1r1n3N/pb1B1RB1/n1pN3r/Bb4N1/k3Q1KQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 b4 Ke6 g4 Ke5 e4 Kd4 e5 a5 g6 c5 g5 f5 e6 c3 g7 c4 b5 c2 b6 f3 d3 f4 e7 a3 e8Q a4 g6 a2 b7 Bb4 Rh4 Nf6 g8B Nc6 b8R Be6 Nd2 Kc3 d4 Ra5 d5 Rb5 d6 Na7 d7 Nd5 Bh3 Qg5 d8N Qh6 Nb3 Be7 Ba3 c1B Nc5 Bd2 Nd3 Be1+ Kf1 f2 Nf3 Bd2 Kg2 f1R Bc5 Rh1 Bg4 Rh3 Nfe1 f3+ Kf1 f2 Ng2 Be1 Qf3 Bd2 Rd1 a1B Bd4+ Kb3 Qe4 Ka2 Qc6 Bdb4 Qe1 c3 Bf7 Bf5 Ne6 Bb2 Nef4 Be6 Nh5 Re8 Ra8 Reb8 Rd2 R8b6 Rh8 Rb8 Bd1 Ka1 Rf4 Nb6 Qd5 Nc4 Bg8 Na3 Qc6 Bf5 Ba2 Be6 Bg4+ Nb1 Ke2 f1N Kf2 Ne3 Kg1 Nd5 Ne3 Nc7 Qh1 Nd5 Ng2 Bf5 Ne5 Nc7 Be3 Be6 Rd7 Nd5 Bc5 R5b6 Nd3 Rb5 Qh4 Na3 Bd4 Bbd6 Qf2 Bb4 Qe1+
1Br1R1B1/4n1p1/rnbR1NP1/1Q2r1NK/brp2q2/b3n2k/p3Q3/N2Q2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 dxc4 g5 exf4 Qb3 Qf6 Qg3 Qd8 Qg4 hxg4 Kf2 Ke7 e4 Ke6 h4 a5 b4 f5 d4 c5 h5 g3+ Kf3 c3 h6 g2 e5 c2 g6 a4 h7 a3 b6 a2 d5+ Ke7 d6+ Ke6 b7 Qe7 b5 Qf7 d7 Ne7 d8Q Ra6 b6 Nd7 Nh3 g1R b8Q Rg4 b7 Nb6 Be3 c1R Nd2 Re1 Bg1 Bd7 Rd1 Ba4 Nb3 Rg8 h8Q Re4 Kf2 f3 Qh5 f4 Ng5+ Kf5 e6 Re5 Bc4 Qf6 Na1 Rh4 Kf1 f2 Kg2 f1N Qe2 Ne3+ Kf3 Rg4 Rd6 Bc6+ Kf2 f3 Rh8 Rh4 Kg3 f2 Qd7 f1B Qbd8 Bfg2 b8B Ba4 Qb5 Bc6 Qd7 Rd4 Kh3 Kf4 Kh4 Rde4 Bb3 Rb4 Kh5 Kg3 Bd5 c4 Qd8 Nec8 e7 Qf4 e8N Ne7 Nf6 N7f5 Nf3 Kh3 Bf7 Be7 Qd7 Rc8 Re8 Bf8 Bg8 Rb2 Rde6 Ba3 Qdd1 Rb4 Rd6 Ne7+ Ng5+
1b4q1/2kBn1pQ/P1rN2n1/3Np2b/3R1R1b/Rp2nQ2/1rN1r2B/3n1Q1K b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 h4 Kd7 f4 c5 Kf2 b5 Kg2 e5 d4 c4 a4 e3 f5 b3 a5 e2 h5 e1B h6 b4 f6 g3 f7 b2 h7 c3 d6 b3 d5 c2 Nc3 b1N Nge2 Nd2 Ra3 Ne7 Nd4 Ng6 Bb5+ Nc6 Rf1 Nc4 Kh1 Ne3 Qf3 Qe8 Bd2 c1R Nc2 Rb1 a6 Rb2 Rf2 Be7 Bc1 Qg8 f8Q Rb8 Q8f7 Rb6 Rf1 Kd8 d7 Kc7 d8N Bg4 Nb7 Bh5 Nd6 Bf2 Qf8 Bh4 Q8f7+ Nce7 Bd7 Rc6 Bd2 Nc4 Bf4 Ba7 Qf5 Bb8 Q5d3 Qc8 Qdd1 Rf8 h8Q Ne3 Qh7 Rf7 Rf2 Qg8 Qf1 g2+ Kh2 g1N Kh1 Ne2 Bh2 Rb1 Rg2 Re1 Rg4 Rf6 Rf4 Rb1 Nf5 Rb2 d6+ Kd8 Nd5 Nc3 Be8 Rf7 d7 Ncd1 Nd6 Rf8 Nc3 Kc7 d8R Rf5 Bd7 Rf6 Rf8 Rf5 Rd4 Rg5 Rf7 Rg2 Rff4 Re2 Nd5+
n3N3/1R1Bp1R1/b6r/k3qR1p/1nP2bN1/pr1bB1n1/BNr2nK1/6QQ b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 g4 h5 f4 d5 Kf2 Kd7 b6 Kc6 c3 a4 b7 Kb6 f5 e3+ Kg2 d3 f6 e2 f7 e1R g5 d4 g6 a3 b5 d2 g7 d3 Nh3 Qc7 Nf2 Ka5 b6 Nc6 b8R Ba6 b7 Nf6 g8B Re2 Rg1 Bh6 f8N Nd5 Nd7 Qe5 Nf6 Ncb4 Ne8 Nc7 Ba2 Bf4 c4 Rh6 Nc3 Ra7 Na4 Na8 Qe1 d1N Be3 Rc2 Nb2 d2 Ng4 Nf2 Bd3 d1B Bf5 Be2 Bd7 Bd3 Rb1 Bg3 Rc8 Bh2 b8Q Rb7 Qa7 Bf4 Rc6 Rb8 Rf6 Rb6 Rf5 h3+ Kf3 h2 Kg2 h1N Qb7 Rh8 Qf3 Rh7 Qh3 Ng3 Qh1 Rh8 Nd1 Nge4 Kf3 Rhh6 Ngf6 Rb5 Rg4 Ng3 Qeg1 Nd5 Kg2 Rd2 Rg7 Rc2 Ng4 Rb8 Rb6 Rb7 Nb2 Rb8 Rd6 Rb3 Rb6 Nb4 Rb7
3QNb2/b1KpP1B1/1rR1qn1p/5B1n/pRb1b3/4Nnk1/Q3Rr1B/4rQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 f5 g4 a5 e4 f3 c4 h6 b4 f2 c5 f4 g6 d3 g5 d2 c6 a3 g7 a4 g6 f3 c7 Kf4 Kb6 a2 b5 Kg3 e5 Bd6 e6 Ra7 e7 Ra5 Bh3 f1N Nc3 f2 Nge2+ Kf3 Rb1 a1B Rb4 Ng3 Rh2 f1R Bf5 Qe8 Nd4+ Kf4 Re2 Bb7 c8R Re1 Nc2+ Be4 Bb2 Nh5 Ne3 Nc6 Ncd5+ Kg3 Nc7 Ngf6 g8Q Nd4 g7 Qg6 Qd8 Rf8 g8Q Nf3 Ne8 Bc5+ Kc7 Ra6 Qa2 Ba7 b6 Rf7 b7 Rb6 Qdb1 d1B b8B Bb3 Bd4 Bc4 Bc3 Nh7 Bg7 Qe6 Qd3 Rc1 Qd1 N7f6 Qh1 Re1 Qf1 Rc6+ Kb7+ Rd6+ Rc6 Bb2 Kc7 Rf8 Rc5 Rb6 Rc6 Nd5+ Kc8+ Kh4 Bh3 Nd4 Bge5 Rf2 Bf5 Nf3 Bh2 Ba1 Bg1 Bg7 Be5 Bf8 Bg7 Ndf6 Kc7 Kg3 Bh2+
4k3/1Prrp1n1/bQ2B2B/1Np3nb/3QR2b/r5Q1/2qBN2p/2RnrN1K b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 h5 f4 a5 Kf2 a4 Kg2 e3 d4 a3 b4 e2 d5 e1R d6 c3 f5 h3+ Kh2 h4 b6 a2 b7 c2 g5 Bg7 g6 Nc6 b8Q Ra3 b5 Ba6 f6 Qc8 b6 Ne5 Nd2 Nh6 Bc4 Nef7 Nf1 Nf5 Ne2 Ng5 Bd2 c1R Be6 c6 Rb1 a1N Rb4 Nc2 Re4 Nce3 b7 Bh6 Qc7 Ng7 Qb6 Rf8 Qa4 Nd1 Qad4 Qc7 Kg1 h2+ Kg2 Rc4 Rg1 h1B+ Kh2 Nh5 g7 h3 g8Q Bf3 Rh1 Ng7 f7+ Kd8 Kg1 Bh5 d7 h2+ Kg2 Re8 f8B Rc5 Qb5 Qc8 Rg1 Rd5 Kh1 c5 Qbb4 Qc6 Qb3 Qa4 Qb1 Qc2 Qb5 Kc7 d8N Rd7 Nc6 Rc8 Na7 Kd8 Qb6+ Ke8 Nb5 Rc6 Qh7 Rcc7 Qg6+ Nf7 Qg3 Bg5 Nf4 Bh4 Ne2 Nf5 Bfh6 Ng5 Rg2 Ng7 Rf2 Bg6 Rf3 Bh5 Rc3 Qa2 Rc1 Qc4 Ba5 Qc2 Bd2
2QnNK2/qQ2r1r1/RR4r1/1b5q/2B3BB/Np1R2rp/1kp2N1P/2nb1r2 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 b5 exf4 b6 axb6 Nh3 b5 Ng1 b4 g3 f5 Qc2 f3 Kd1 f2 Qb3 f4 Kc2 Bd6 Qa4+ Kf8 Qb3 f3 Qa4 Bf4 gxf4 Bf5+ Kb2 Bd7 Qd1 Ke8 Kc2 Bc8 d4 Kd7 a4 Kd6 e4 g5 d5 Kc5 d6 b5 a5 h5 d7 g4 a6 c3 Kb3 g3 e5 g2 a7 h4 f5 c2 e6 h3 f6 Qe7 d8R Na6 f7 Nh6 f8N Rg8 Rd2 Rg3 Rd3 Nf7 Qe2 Nd8 Bg5 c1R Rd7 Re1 Kc2 b3+ Kc3 b4+ Kd3 b2 Na3 b1Q+ Ke3 c6 Kf4 Qg6 Ke5 Qh5 Qe4 b3 Rb7 Qef7 e7 Bg4 e8Q Nb4 Bc4 f1R Ne2 g1R Rb6 f2 Nf4 Na2 Nh7 Nc1 Nf6 Bd1 Qe6 Rc8 a8B Qa7 Ne8 Rc7 Kf6 Rg7 Bh4 R1g2 Qh7 Kd4 Qc8 Kc3 Nd3 c5 Bf3 Ree7 Bg4 Rgg1 Nb5+ Kc2 Raa6 Kb1 Na3+ Ka1 Bf7 c4 Qe4 c3 Bc4 c2 Qeb7 R1g2 Rg1 Rfe1 Rh1 f1B Nf2 Bd3 Rf1 Kb2 Rg1 Rf1 Rh1 Ree1 Rg1 B3e2 Rh1 Rg6+ Ke7 Bd3+ Kf8 Re7 Bce6 Bb5 Bc4 Rd3 Rg1 Rgg3 Rg2 Reg7 Rg1 Rge3 Rg3 Ree7 Rf3 Rde3 Rf4 Rc3 Rd4 Rg3 Rd3
1q6/4b3/b2R1nkN/1PRRb1pp/6rB/1qNBK3/np2N1Qb/2Qbr2Q b - - 0 1 illegal: No proof kernel
7b/3bRQ2/kNnqq2P/1B2BqR1/3rQ2q/1QN1pp2/1K1p1n1R/3Nqr2 b - - 0 1 illegal: No proof kernel
1k1qr2n/b3r3/2pNb1p1/3RRq1N/1PpqQq2/B5Q1/4Q1nK/2Rq1B1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 Kg2 a5 e4 f5 h4 g3 b4 g6 d4 a4 e5 a3 h5 a2 d5 c6 d6 f3+ Kh3 f4 h6 f2 h7 f3 b6 g2 b7 Ne7 Na3 Nf5 Nb5 Ra7 Ba3 Ne3 Rc1 a1Q Ne2 g1Q Ng3 Qd4 Qe2 Ng2 Qe4 Rg8 h8Q Be7 Qe2 Re8 Qh4 Bg5 Rh2 Be3 Nh1 Qd1 Kg3 Bc5 Qhe4 Qd4 Rh8 Qh2+ Kg4 Qf4+ Kh3 Qf5+ Kh2 Bb6 Rh5 Bc5 Qd2 Bb6 Bd3 f1Q Qde2 f2 Rg5 Qd1 Rh5 Na6 b8Q f1Q Rg5 Nc7 Rh5 Qdf6 e6+ Kd8 d7 Q1f4+ Ng3 Rb7 Nd6 Ba7 Rg5 Nb5 Rh5 Qfd5 Re5 Q4f5 Nh1 Q6g5 Qa8 Kc7 d8R Qge3 e7 Be6 Q4g4 Qef4+ Qg3 Qb6 Qe4 Qdd4 Bf1 Qa5 Nc8 Qab6 Rdd5 Nd6 Qe2 Nf7 Nd6 Nh8 Qe4 Rg8 Qf8 Qa5 e8N+ Kb8 Qe7 Qd8 Ng7 Re8 Nh5 Rc7 Qe2 Rd7 Qh4 Rde7 Qhg4 Qde4 Qgf3 Qed4 Qfe4
5K1B/1n1N1np1/NB2Q2n/1b2Rp2/rn2R2q/bpQ1Pk2/B1R2n2/q1r4N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 Kd6 d4 b5 a4 f5 h5 c5 h6 b3 h7 g3+ Kf3 g2 a5 b4 a6 c4 a7 c3 Qe1 c2 Ra4 b2 Qc3 Bd7 Nh3 g1Q Na3 b1N Be3 c1N Nf2 Qe8 Nb5+ Ke7 d6+ Ke6 Rh2 Kd5 Nh1 Na2 Bf2 Bc6 d7 Na3 d8Q+ Nd7 Qf6 Nh6 Qe7 Rg8 h8B Qd8 Bg2 Rc8 a8N Nc5 Qe8 Nc4 Nbc7+ Kd6+ d5 b3 Nb6 Qh4 Na6 Nb4 Nd7 Nb7 Bb6 Qa1 e3 Bb5 Bf1 Rc5 Bd3 Be7 Qf7 Ra8 Bb1 Ra7 Rc2 Ne5+ Kg2 Rc4 Ba2 Ra8 Qg8 Nef7 Kf3 Rac8 Qe8 Rd4 Ndc5 Ke5 d6 Kd5 d7 Rc4 d8R+ Bd6 Ke2 f3+ Kd2 f2 Nd7 f1N+ Ke2 Be7 Kf3 Rg4 Qg8 Rgc4 Re8 Ng3 Ra5 Ne4 Ra4 Qf6 Kf4 Bf8 Ra5 Nf2+ Re4 R8c5 Kg3 Qd4 Kh4 Qf6+ Kh5 Qh4+ Kg6 Be7 Rg4 Rf4 Kh7 Ke4 Qc8 Kf3 Kg6 Rfc4 Re4 Rd4 Qc6 Rcc4 Qe6 Rd1 Kh7 Rc1 Kg6 Nd5 Kh7 Ba3 Kg6 Nb4 Kh7 Nhg4+ Kg8 Ngh6+ Kf8 Nbd3+ Qd6 Ra4 Qe7 Nb4 Qe6 Be2 Rc5 Bb5 Rce5
qNN1q2r/3pnn2/3Pnp2/Bp1brRRQ/2bQ4/k2Rn3/2B4n/NK5B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 e5 Qc2 exf4 Qa4 Bc5 Qd1 Bb6 c5 axb4 Nf3 b3 Ng1 Ba5 Qc2 b5 Qd1 Bb6 cxb6 Kf8 Qc2 Ke7 Qd1 Ke8 g4 Ke7 a4 Kd6 d4 c5 Kd2 h5 e4 f6 a5 c4 b7 b2 Kc2 c3 d5 Kc5 a6 Kb4 a7 f3 d6 h3 g5 h2 g6 h4 g7 h3 e5 f2 e6 Nc6 b8N Nh6 g8R Nf7 e7 Bb7 e8Q Ne7 Rg2 Bd5 Ne2 Bc4 Na3 b1N Nd4 Nd2 Rg5 Nf3 Bd3 f1N Kb1 Ne3 Rf1 h1B Nb3 Nh2 Bc2 Bhd5 Bd2 Rh5 Qh8 Qe8 Rff5 Ka4 Na6 Rc8 a8B Rc5 Nb8 Rh6 Qg8 Rh8 Qg6 Kb4 Qg4 Ka4 Q6h5 Kb4 Bd1 Ka4 Qd4 c2+ Kb2 c1N Bc2 Nd3+ Kb1 Nf4 Ba5 Be6 Bh1 Re5 Ka2 Bd5 Rd1 Ne6 Rd3 Nhf1 Kb1 h2 Bg2 h1Q Be4 Qh4 Bh1 Qh3 Qc3 Qf3 Na1+ Bb3 Nc4 Nh2 Nb6+ Ka3 Nc8 Bc4 Qd4 Qa8 Be1 Bd5 Bc3 Bbc4 Ba5+
KnQ1bR2/1np1qN2/RR1N4/6pr/3Q1P1n/q5B1/1n1bkNBp/3B2nr b - - 0 1 illegal: No proof kernel
2nn3B/1Qpr3Q/K1p1b1b1/b2q1q1N/B5R1/rpb5/QNk1RNP1/1b5B b - - 0 1 illegal: Other
1N1Qb2b/pqprb3/k1B2Bn1/1R4Nb/p1r2b2/1R1Q3N/K1n1P3/4R1qB b - - 0 1 illegal: No possible last move
k5br/4R1Br/4B2Q/4qp1Q/NNN2pPq/1BR5/p3nQ1b/b2Kbnn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 a5 e4 h5 g4 c3 d5 c2 d6 h3 e5 h4 b6 Kc6 d7 Kb7 b5 h2 e6 h3 e7 a4 e8B a3 Bb2 c1B Be5 a2 Bd3 Qh4+ Ke2 Ra7 d8Q Bd2 Qf6 Be1 Bh7 Be6 Bf5 Ka8 Qe7 Bg7 Qd4 Nh6 Nf3 Nc6 Qf2 Nd4+ Kd1 Ne2 Qd6 Ng1 Nfd2 c5 Bd7 c4 Bc2 c3 Nc4 Nf5 Bb3 Ng3 Bf6 Bd5 Be6 Nf1 Qe5 Rd7 Qh5 Qg5 Bd4 Qe5 Qh6 f5 b7+ Kb8 Qh5 Bf6 Qh6 Rdh7 Qh5 Bh4 Qh6 Bg3 Qh5 Kc7 b8N Kb7 b6 Ka8 Nc6 c2+ Kc1 Qe2 Bg7 Qe4 Nb4 Qe5 Bd7 Bg8 Be6 Nd2 Nc3 Nf1 Kb2 c1B+ Kc2 Ba3 Kd1 Bb2 Rc1 Ba1 Na4 Ne2 Rg1 h1Q Rg2 Ng1 Rc3 Bh2 Rgg3 Qg2 Rgd3 Qg3 Rd7 Qh4 Rf7 Bg3 Qh6 h2 Re7 h1N Qh5 Bh2 Qh6 Nhg3 Qh5 Qc5 b7+ Ka7 Nc2 N3e2 b8Q+ Ka6 Qf8 Qe5 Re8 Kb7 Nb4 Bg3 Qf6 Bh2 Re7+ Ka8 Qfh6
k3qb1R/2q1B2b/8/1rnp1Rr1/1RnK1Q2/p1NQQ3/2pB1q1P/1nN3qB b - - 0 1 illegal: No proof kernel
4Q1bB/2RNbQ2/qb6/1r1pb1qq/2P1r1n1/1NnB4/k1p1p2R/1R2KB1N b - - 0 1 illegal: No proof kernel
rr3R2/1Q2K1NQ/2q2Q2/R1p3p1/NB1N4/b1P1nRB1/n3bpr1/2nnq2k b - - 0 1 legal: proof: f4 b5 g4 d5 a4 g6 e4 dxe4 axb5 Kd7 f5 Ke8 g5 Nh6 Be2 Ng8 Bh5 gxf5 g6 f4 g7 Kd7 Bg6 hxg6 Ra6 Ke8 Ra4 Bg4 Ra1 Bc8 Ke2 Kd7 d4 Kd6 h4 Kd5 b4 e5 b6 f5 b7 a5 h5 a4 b5 f3+ Ke3 g5 c3 f2 b6 f1N+ Ke2 e3 Kd3 e2 h6 e1R h7 a3 Bb2 a2 Ne2 f4 Rh3 f3 Qc2 f2 Rf3 Ne7 g8R Qd7 Ba3 Ne3 Bb4 Nd1 Na3 Nbc6 b8Q Ba6+ Nc4 Rg1 b7 Rg2 Qc8 Nf5 b8B Nfe3 Qb7 Bc5 Rgf8 Rg8 h8Q e4+ Kd2 Be7 Nb2 Bd6 Na4 Qe8 Ng3 Be2 Qf6 Qg6 Nf5 Qh6 Rb1 a1N Ng7 Bc5 Rb3 Qh1 Ra3 Bd6 Kc1 Nb3+ Kb1 Nc1 Ka1 Kc4 d5 Be7 d6 Kd5 d7 Rh8 Ra2 Bc5 Ba5 Ba3 d8N Qh6 Nde6 Rg8 Qb6 Nb4 Nd4 c5 Bg3 Qg6 Qd3 Qe8 Qb8 Qc6 Qb7 Rh8 Kb1 Rb8 Ra1 Nba2 Bb4 Ra8 Rf7 Rhb8 Rf8 Ng4 Kc2 e3 Qc4+ Ke4 Qcf7 Bf1 Qg8 e2 Qgf7 e1Q Qfd7 Nd3 Kb3 Be2 Kc4 Ndc1+ Rd3 Qd5+ Kb5 Nge3 Kb6 Nc2 Rf3 Nce3 Kc7 Nc4 Qbc8 Nce3 Kd8 Qb7 Ke7 Qc6 Qcb7 Nc2 Rd3 Nce3 Ndf5 Kf3 Qdc7 Rh2 Nd4+ Kg2 Qd7 Kh1 Qdc7 Ng4 Rf3 Nge3 Qd7 Rg2 Qh3+ Kg1 Qh7 Bb2 Ba5 Nb4 Ra3 Nba2 Bb4 Bc4 Nb6 Be2 Ra5 Ba3 Qe4 Kh1 Na4 Qb6 Qc2 Qc6 Qh7+
Qn1n2Rn/bN1N1R2/2qB1qp1/N1n2QP1/br5r/5p2/kp1KRB2/q1Q5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 g5 exf4 Bh3 Bf5 Bg4 hxg4 Ba3 Bd7 Bc1 Bc8 h4 Kd7 e4 Kd6 a4 Kc5 d4+ Kc4 h5 c5 e5 b5 d6 f5 e6 b3 e7 g6 e8N b4 h6 b2 d7 g3 h7 f3 d5 f4 d6 g2 a5 b3 a6 f2+ Kd2 f1N+ Ke1 f3 a7 Qf6 d8R Ng3 d7 Ne4 Rh4 Nh6 Nc3 b1Q Rh2 b2 Nd5 Nf7 Ne2 g1N Be3 Nh3 Nd4 Nf4 Re2 Ne6 Nc6 Bg7 Ra6 Qa1 Qc1+ Kb3 Nb6 c4 Nd6 c3 Bf2 c2 Rg8 N4c5 d8B Bd7 Na5+ Ka2 Be7 Ned8 Ndb7 Ba4 Bd6 Bf8 Nd7 Be7 Qd1 c1Q Rc6 Qc4 Kd2 Qb5 Rc7 Qc6 Bf4 Bd6 Qc1 Be5 B4g3 Bd4 Bd6 Nba6 Bf8 Rc8 a8Q Rb8 Nd6 Rb3 Ndb7 Rb4 Bd6 Nb8 Rg7 Re8 h8Q Re4 Qh3 Nh8 Qf5 Rh4 Rf7 Nce6 Rc8 Ba7 Bd4 Nc5 Bf2 Nde6 Re8 Nd8 Rg8
1b1n2R1/bN3Q2/2krRPq1/2N1p2B/1K1p1pn1/3rn1BN/b4bQq/3QR3 b - - 0 1 illegal: No proof kernel
N4bR1/3n2N1/2rp1R2/qb6/2QnB1pk/n2BKPrQ/1pb1N1Q1/1b2B2q b - - 0 1 illegal: No possible last move, all moves rejected
b4R2/1qBkQn2/B2p3b/5r2/3Rp2r/1QqRpnNN/3P1N1q/1q1Q1Kb1 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 f4 a5 c4 h5 g4 e5 b6 d6 g5 b3 b7 h3 g6 a4 f5 h4 g7 a3 f6 h2 f7+ Kd7 c5 a2 Nh3 b2 Kf2 Nh6 g8R Ra5 Nc3 b1Q Bb2 Qc7 Ba6 Nc6 b8Q Nd4 Qbb3 Bb7 Kf1 Ba8 Rg3 Rh7 Rd3 Nf3 Ba3 Bg7 f8Q Nf7 Bb4 Bh6 Qg7 e3 Ne4 Qb7 Rg1 h1Q Nef2 Qh2 Rg4 e4 Rf4 Rb5 Ba5 Qc2 Rb1 a1B Bc7 Be5 Rc1 Qb2 Rc4 Qc3 Rcd4 Rh8 Ng1 h3 Qg5 Nd8 Rf8 Nf7 Qh4 Qg3 Qg5 h2 Qg7 h1Q c6+ Ke7 Qh7 Bef4 Qg7 Rf5 Qh7 Qhh2 Ngh3 Qg7 Bb6 Qb4 c7 Kd7 c8N Qc3 Ne7 Qgg1+ Ke2 Bg3 Bc7 Bh4 Nd5 Qgh1 Ndf4 Bg3 Nh5 Q1g1 Qdc2 Qb1 Qd1 Be5 Kf1 Bg3 Nh1 Bf2 N5g3 Bg1 Qg7 Rg8 Qh7 Rg4 N1f2 Rh4 Qg7 Qb6 Qg5 Qb7 Qe7+
5N2/b2KQn1p/3QN3/1r1BBqPp/kr1rnNB1/1r6/bRQ2pR1/2n3q1 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 g6 Qd2 gxh5 Qd3 Nc6 Qd1 Nb8 Kd2 a5 Kd3 d5 b4 Kd7 e4 f5 c4 a4 g4 a3 e5 f3 g5 a2 b6 Kc6 b7 f4 e6 f2 c5 Kb5 e7 f3 e8Q+ Nd7 b8N Nh6 c6 Qf6 c7 Nf7 Bf4 Bc5 Be5 Ra5 Ne2 Ba7 Nd2 Qf5+ Ne4 Bb7 Qd2 Ka4 c8B Rb5 Nf4 Nf6 Bg2 f1R Rh2 f2 Rb1 a1N Qe7 Nb3 Rb2 Rb1 Nd7 Rg8 Nf8 Nc1+ Kc2 d3+ Kc3 d4+ Kc4 Bc6 Qc3 d2 Qc2+ Nb3 Bh1 d1R Rg2 d3 Bd7 d2 Nc5+ Ka3 Nce6 Ka4 Bc8 Ne4 Bd7 Rdc1 Bc8 d1Q Bd7 Qg1 Bc8 Rd5 b5 Rcd1 b6 Rb5 b7 Rd6 b8Q Bd5+ Kd3 Rdb6 Qbd6 Rb4 Ke3 R6b5+ Kf3 Ka5 Bd7 Nc1 Bc8 Ba2 Bd7 Bb8 Ke3 Rb3+ Kd4 Ba7+ Kc4 R5b4+ Kd5 Rg7 Kc6 Ka4 Bc8 Rg6 Kd7 Rg8 Ba6 Rh8 Be2 Rd4 N8g6 Rb8 Nf8 Rb5 Bg4 Rbb4 Rg3 Nc3 Bd5 Ne4 Rg2 Rb5 Qd3 R3b4 Re2 R1b3 Rb2 Qf6 Qd1 Qf5 Qc2
6B1/1B1KQr1p/1Q1p1R2/1R3BNn/2k2qbP/b2p1q1R/bbr4n/q3NN2 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Ra1 f3 Bf4 exf4 Kd2 f2 Kd3 Ke7 Ke4 Ke6 g4 a5 c4 a4 b4 f3 h4 f6 g5 a3 c5 a2 c6 d3 c7 d6 b6 Na6 g6 Bg7 b7 Qf8 b8R Ra7 b5 Nh6 b6 Nb4 b7 Nd5 Rh3 Nf4 Nd2 Ng4 Bg2 f1Q Qe1 f2 Ngf3 Nh5 e3 Bh6 g7 Nh2 g8B+ Qf7 Kd4 f5 e4 f4 e5 Bg5 Rc1 a1B+ Ke4 Qg1 Nf1 Bb2 Rc5 Ba3 Rb5 Bf6 Qe2 Bd7 Ne1 f3 Rf8 Bc6+ Kd4 Bd5 b8Q Ba2 c8B+ Rd7 Qb6 Bg7 Nd2 f1B+ Qe3 f2 Bgb7 Be2 Nf1 Bg4 Ke4 Ke7 e6 Bgb2 Qe2 Kf6 e7 Ke6 e8N Qg3 Nf6 Qg1 Nd2 f1Q Qee3 Qe2 Nf1 Qd1 Nd5 Qa1 Nc3 Qg3 Qe2 Qf3+ Kd4+ Kf6 Qe4 Rc7 Be6 Rc4+ Kd5 Qf4 Qe2 Ke7 Ne4 Rc2+ Rb3 Q7f6 Bf5 Qf3 Qee3 Qg5 Rf6 Qgf4 Bge6 Rf8 Bg8 Rf7 Qe2 Kf8 Ke6 Ke8 Qa7 Kd8 Ng5 Kc7 Qe5 Bb4 Qb8+ Kb6 Qe4 Kc5 Qd8 Bd4 Qb6+ Kc4 Rb2 Bc5 Rb5 Ba3 Qe5 Bdb2 Qe2 Rf8 Kd7+ Rf7+ Qe7
B2Kb2n/2R1Q1pN/nk2qRbb/b3prp1/N3q1Q1/2r1R3/P2n1QB1/2B5 b - - 0 1 legal: proof: g4 f5 b4 a5 bxa5 c5 d4 cxd4 e4 fxe4 g5 b5 g6 hxg6 Kd2 e5 f4 d5 c4 Kd7 h4 Kc7 f5 b4 c5 d3 Ke3 b3 c6 d2 h5 d4+ Kf2 b2 Kg3 d3 Kg4 e3 h6 e2 h7 e1B a6 Bb4 a7 Qe7 Nh3 Qe6 Ng5 Kb6 c7 Ne7 Nc3 b1N Rh6 Ba5 Bg2 Bd7 c8R Be8 Rc7 Rf8 h8Q Na6 Nh7 Rc8 a8B Bg3 Qe2 Bf4 Qf2+ Be3 Rh3 d1Q+ Rf3 d2 Na4+ Kb5 Qg8 Bh6 Qf7 g5 Qh5 Qh1 Re3 Ng6 Qhh4 Qb3 f6 d1B+ Kf5 Nh8 f7 Bh5 Qg4 Nd2 Rb1 Qe1 Rb2 Qe2 Rbc2 Qd5 R2c6 Qe4+ Ke6 Bg6 Ke7 Q2c4 Rf6 Qb3 Ra7 Rc3 Rc7 Qe6+ Kd8 Rg8 Nc5 Kb6 f8Q Q6c6 Qe7 Rf8 Re6 Rf5 Rf6 Qe6 Na4+
1q2bQQb/r2R1p1B/1rB1nR2/r1Nq2kp/PB6/1N1r2p1/Q5N1/2n2n1K b - - 0 1 illegal: No proof kernel
5R1Q/q2NBpPp/rb5n/q1p3KR/1r1R3N/nBN4r/5Qbr/2n1Bk2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kd6 b4 Kd5 g4 Kd4 e4 c5 e5 a5 b6 h3 g5 c3 b5 c2 e6 a4 Kg4 f3 b7 f2 g6 a3 b6 h2 g7 a2 Qe1 Be7 Nc3 Bf6 Bc4 f1R Bb3 Kd3 Nf3 Rf2 Nh4 Nc6 b8Q Na7 b7 Nb5 Ba3 c1N Bb4 Re2 Qf2 Qa5 Kf4 Na3 e7 Bh3 e8R Bd8 Rf8 Bc7+ Kg5 Ra6 Qe8 Bf1 b8N Bg2 Nd7 Bb6 Rb1 a1Q Qd8 Na2 Rbd1 Nh6 Re8 Re3 Kh5 Rf3 Nf5 Qa4 Nb8+ Qd7 Na4 Ba7 Rg8 Ke4 d4 Nc1 d5 Qc3 d6 Qc7 d7 Qd2 Qf8 Kd3 d8B Qb6 Nd7 Rg3 Qd4+ Ke2 Be7 Re3 Kg5 Qc7 Rhf1 h1R Qh4 Qe1 Rd4 Qc3 Rf3 Rh2 Rh3 Kf1 Qg3 Qb7 Rh5 Rf3 Qh4 Rfh3 Qg3 Qe1 Nh4 Qc3 Ba5 Qcb4 Qfb8 Q4b5 Be1 Qa5 Nc3 Qbb6 Qb7 Qc7 Ra8 Rb8 Qc8 Rb4 Qh8 Bb6 Rf8 Qa7 Qf2#
Q1r2qQ1/3bpn2/1Kn4k/1Br1P3/2Rnq2R/3p1QR1/1Bb1p1N1/b2N2bB b - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 h4 gxh4 axb5 c5 e5 cxd4 Qd3 Bh6 Qf3 Bf8 Qe4 fxe4 Kd2 Kf7 c4 Kg6 b4 h5 g4 d5 f4 a5 f5+ Kh7 b6 a4 b5 d3 Ke3 d2 Kd4 d1N Kc5 e3 b7 a3 b6 a2 f6 h3 g5 h2 f7 d4 g6+ Kh6 g7 h4 Ne2 h3 Nbc3 Ra3 Nf4 Nc6 b8R Bd7 b7 e2 Bb2 d3 Ng2 Ne3 Rc8 Nf5 b8Q Nfd4 Nd1 Rc3 Qa8 Qe8 Rg1 h1B Kb6 h2 c5 Rc2 Rc1 Rc4 Rc3 a1B Ra3 Rc2 Ra4 Rc1 Nf4 Be4 Rg3 h1Q Bg2 Bd5 Be4 Bc4 Ng2 Bb3 Rc7 Bc2 Rc4 Nf6 g8Q Ng4 Bd5 Bg7 f8Q Qd8 Qf1 Qf8 Qf3 Bf6 Ra7 Bg5 Raa4 Be3 Rab4 Bg1 Ra4 Nb4 c6 Qh4 c7 Nbc6 c8B Qh1 Qf2 Qh4 Ba6 Qh1 Nge3 Qe4 Bb5 Qf7 Qgb8 Rc8 Qf3 Qf8 Ng2 Nh2 Qg4 Nhf3 Rab4 Ng5 Qf3 Nf7 Ra4 Rc7 Qe8 Rc8 Rab4 Qg7 Qg8 Qf8 Rc3 Qe3 Qf1 Ba4 Ne1 Ne6+ Rd4 Qf4 Bh1 Qg4 Ng2 Qg6 Rb3 Rc5 Rc3 Bc2 Qf3 Qh7 Re4 Ned4 Rc4 Qg6 Rf4 Qe4 Rh4+
Rn1QbB2/br2pq2/1R1q4/2p3Kb/1r1r1PQ1/nBQbp1N1/k1N3B1/5N2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 g4 a5 b4 h5 d4 e3 f3 c3 g5 h3 g6 h4 g7 a4 b6 h2 b5 h3 b7 c2 b6 a3 Qe1 a2 Bg2 Kc4 d5 Kb3 d6 Bg4 d7 Bh5 Qe2 Ra4+ Kf5 Rb4 f4 Nf6 g8B+ Nd5 Qd1 Bg7 Kg5 Bd4 Qg4 c6 Bd2 c1R Bc3 Rd1 Ne2 Qf8 d8N Qf7 Ne6 Nc7 Ng3 Nb5 Nd2+ Ka3 Rg1 h1B Ndf1 h2 Rb1 Bc5 Nd4 a1Q Nc2+ Ka2 Bg7 Na3 Bf8 Qd4 Bh7 Qd2 Bd3 Rh6 Bb5 Qd6 Ba4 Rdd4 Rb3 Rbc4 Rb5 Rb4 Ra5 Re6 Ra8 Rf6 Bh3 Bf3 Bg2 Be4 Rh1 Bd3 Rg1 Na6 b8Q h1B b7 Ba7 Qd8 c5 b8Q Rb7 Qbc7 Nb8 Qa5 Re6 Qc3 Ree4 Nh2 Rdb4 Rb1 Rec4 Nhf1 Rd4 Bh3 Bhe4 Bg2 Bc6 Rb3 Be8 Rb1 Rbc4 Rb6 Rb4 Bb3+
1R1rk3/n2Rp1Bn/1p1Q4/1q4rQ/QP6/1qb2NNR/1B3np1/b1KBr1n1 b - - 0 1 legal: proof: e4 c5 a4 f5 g4 fxe4 d4 cxd4 a5 h5 a6 hxg4 Qd2 b6 Qd1 Bb7 axb7 Qc8 Nc3 Qc7 Nb1 Qd8 Kd2 g5 f4 a5 h4 d5 c4 a4 b4 e3+ Kc2 g3 h5 g2 c5 g4 f5 a3 c6 d3+ Kb3 d2 Kc2 a2 c7 e2 c8R e1R f6 d4 h6 g3 h7 Nc6 b8Q Ra5 Nf3 g1N Bb2 g2 Be2 Rg5 Rh3 Bg7 Qd6 Na7 Rb8 Qc8+ Nc3 d3+ Kb3 Qd8 Ne4 Qc8 Rb1 a1B Ng3 Qd8 Qc2 d1N Rc1 Nf2 Rd1 d2 f7+ Kf8 Ka2 Bc3 Kb1 Qe8 Qa4 Nf6 Kc2 Rhg8 h8Q Nh7 Kb1 Nf6 Qh5 Nh7 Rb7 Qb5 Rb8+ Kg7 Kc2 Rd8 f8B+ Kg8 Qh4 Kf7 Bg7 Ke8 Qh5+ Rg6 Rc1 d1Q+ Kb1 Qd2 Bd1 Qd5 Rc2 Qb3 Kc1 Be5 Rc7 Bc3 Qf5 Rg5 Rd7 Qa2 Qg4 Qb3 Qh5+
2qn4/1n2pP2/1N1RQ3/1KN1bR1b/1Q1r2pb/1N2B1k1/2Bp1q2/RB1qr2q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 c4 Kg6 h4 Kh5 b4 g5 f4 d5 f5 a5 c5 a4 b6 e3+ Kd3 e2 b7 e1Q b5 a3 c6 a2 b6 Rh6 f6 Nd7 b8Q Ra4 c7 Qf2 b7 Bg7 Qb3 g3 Nd2 Kg4 h5 g2 Nc4 Kg3 Nf3 g1Q Nb6 g4 Rh4 Qh1 Nd2 Rg6 Be2 Nh6 Bd1 Nf7 h6 Qe8 h7 Nd8 f7 Re6 h8R Re1 R4h5 Bf6 Rf8 Bh4 Rf5 Rc4 Rg8 Ra4 Rg6 Nc5+ Kc2+ d3+ Kc3 Qc6 Rd6 Rd4 Bc2 Be6 c8B Qd7 Ndc4 d2 Na5 d1Q Be3 Qc6 Bd7 Qc8 Bb5 Bd7 Bbd3 Bb5 Be4 Bd3 Bb1 Bc2 Qb4 Bd3 Nb3 Bc2 Qa8 Bd3 b8N Ncb7+ Qc4 Bc2 Kb4 Bd3 Qa5 Bc2 Rff6 Bd3 Bh7 Bg6 Kb5 Bh5 Bbc2 Qhg2 Qab4 Qh1 Rb1 a1B N8d7 Bb2 Rf5 Rf4 Bd3 d4 Rc5 Qdd2 Ra1 Qd1 Bb1 d3 Qe6 d2 Bhc2 Rc4 Rg5 Be5 Ndc5 Rd4 Rf5
1n5k/2bpq1rR/1NrQ4/1Qp2Bb1/1q2qPK1/3p2Bn/b4NN1/b2R1QB1 b - - 0 1 illegal: No possible last move, all moves rejected
8/3p1r1r/NQQPQr2/Rnb1K1pq/1B5k/5bpn/R2r1b1R/N1q1B1B1 b - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 hxg4 Kf2 exf4 Ke1 c6 b4 Qb6 Bg2 Qc7 b6 Ne7 b5 Qe5 b7 Qf6 b6 Ng8 Bd5 Qg5 Bc4 Qd8 Bb5 cxb5 Kf2 Ke7 h4 Kf6 c4 g5 d4 a5 e4 b4 e5+ Kg6 c5 Kh5 d5 f5 e6 a4 e7 a3 e8R a2 d6 b3 c6 b2 c7 f3 Ke3 g3 Kd4 f4 Re2 f2 Nh3 f1R Qb3 f3 Na3 b1Q Nc2 f2 Rh2 Ne7 Ke5 Rh7 Bd2 Qe8 Qe6 Nd5 Bb4 Na6 b8Q Nf4 b7 Qc1 Qa7 Qg6 b8B Bb7 c8Q Bf3 Qb6 Nc7 Ba7 Nb5 Qcc6 Be7 Rd2 Bd8 Rd5 Rd1 Rc5 f1R Nf2 Qf7 Nd3 Nh3 Rd5 Qe8 Nc5 Rd2 Na6 Qg6 Rc5 Bc7 Rd5 Rf8 Rc5 Rf6 Rd5 Na3 Ra5 Rff7 Ne3 Nb5 Nc2 Kh6 h5 Bd8 Rb1 a1B+ Rb2 Rff2 Qd4 Bb6 Rba2 Bb2 Na1 Ba3 Qe3 Rf1 Q3b3 Bf2 Qb1 Be1 Bg1 Bf2 Qbb3 Rf6 Qe3 Qe8 Qeb6 Qh8 Bc3 Bac5 Bb4 Kg7 h6+ Kg6 Nb8 Kh5 Na6 Re7 h7 Kh4 Qbc7 Qe8 h8B Qh5 Q7b6 Rff7 Bf6 Rh7 Kf5 Reg7 Bfc3 Rf7+ Ke5 Bg2 Nc2 Bfe3 Bd4 R1f6 Na1 Bf3 Bf2 Rb2 Bg1 Bf2 Bdc3 Rc2 Be1 Rb2 Qc8 Rd2 Qcc6
1n1Q1bn1/n2p4/1nbp4/1R1BQpBR/1K1P4/r2q2B1/q2Q1R2/kN2rNq1 b - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 f4 exf4 c3 gxh4 Qc2 Ba6 Qg6 Bc8 Qd6 cxd6 b4 Ke7 g4 Kf6 e4 Ke5 g5 h5 c4 Nc6 g6 Kd4 g7 f5 c5 a5 e5 a4 b6 f3 b7 a3 b8B a2 e6 h3 e7 h4 e8Q h2 b5 h3 b6 Nh6 g8Q Bb7 Qg2 Ng8 Na3 f2+ Kd1 Qc7 Bc4 f1N Kc2 Ne3+ Kb3 Nd5 Ba7 Rh6 d3 Re6 Bg5 Re4 Rf1 a1N+ Ka4 Kc3 Nf3 Nb3 Nd2 Kb2 Nab1 Nbd4 Qe5 Ka1 Rf3 Re1 Nf1 Ncb4 c6 Na6 Bb3 Qb8 c7 Bc6+ Ka3 Qd8 c8Q Qe8 b7 Qf7 Qe7 Nb5+ Ka4 Qe6 b8R Qe3 Rb7 Nb8 Qcd8 Qd2 Qe5+ Qc3 Rg1 h1Q Qge2 Qg2 Rh1 h2 Qc2 Ne3 Bd5 Nc4 Rb6 Qd4 Kb4 Qg1 Qc1 Qf2 Rb7 Qa2 Bb6 Ra6 Qd2 Ra3 Bc5 Na7 Rb5 Rc3 Rf4 Qe3 Rf3 Nb6 Bd4 Qe2 Bf2 Qe3 d4 Ra3 Bg3 Qd3 Rg1 h1Q Rf2 Qh2 Rh1 Qg1 Rh5
3nK1N1/n1kp2p1/q2NP2n/1bQ2r2/3q4/1prNB1QR/1rR1n3/QBb1R3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 b5 Kf3 f5 c4 b3 e4 d3 a4 b2 h4 d2 c5 b4 c6 b3 e5 Bb4 c7 Nf6 h6 Ng8 h5 Na6 h7 Rb8 a5 Bf8 h6 Nc5 a6 Rb4 e6 Rc4 a7 Rc3+ Bd3 Qh4 a8Q Nb7 Qa3 Nd8 Qc5 Ba6 c8N Bb5 Na3 b1N Nc4 Na3 Rh3 Bd6 Qe1 d1N Ne7 Qf6 Ne2 Qd4 Qg3 Be5 Kg2 f3+ Kh2 f2 Be3 f1Q Nf4 Bf6 Bb1 Bg5 Nd3 f4 Ra2 f3 Rc2 f2 Nd6+ Kf8 Ne5 Qfc4 Nd3 f1R Kg2 Qa4 Rh1 Bf4 Kh3 Qa6 Kh4 Bg5+ Kh5 Rf5 Kg6 Bf4 Ndc8 Ke8 Re1 Bg5 Bf2 Bc1 Be3 Nf6 Ng8 Ng4 Nge7 Rhf8 h8Q Rf2 h7 Nh6 Ng8 R8f5 Ra2 Rb2 Nd6+ Kf8 Nf6+ Ke7 Qg8 Nf2 h8R Nh3 Rh7 Ng1 Qh8 Ndf7 Qa8 Ne2 Qh1 Kd8 Ng8 Ba4 Rh8 Nb5 Rh7 Na7 Qhg1 Ng4 Rh3 Bb5 Qh1 Rd2 Rc2 Ngh6 Qa3 Kc7 Qa1 Rc4 Qd5 Nd8 Qc5+ Ndc6 Rc3 Rb2 Rc2 Rc3 Nf6 Ng8 Kf7 Nh6+ Kf8 Rf1 Ke8 Rf5 Qd5 Nd8 Ng8 Rg5 Qde5 Rf5 Qc5+
RB5K/1p1b4/1prQQQN1/nkr2R2/3r1Pb1/qN4B1/1r1nRp2/2q1b2B b - - 0 1 illegal: No proof kernel
1QbB2Nb/Npp4r/r6k/1rR2Qqn/4n2B/pRb3q1/1bPR1N2/1K5Q b - - 0 1 illegal: No proof kernel
1N4n1/PbQ1N2K/nn2r2Q/4RpB1/1r1pB1kq/3r1R2/Qb2q1p1/2N1B2r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 b5 e4 d5 h4 g5 c4 b3 a4 f6 a5 f3 h6 f2 Kh5 f5 Kg6 d3 h7 d2 c5 b4 c6 b2 h5 b3 a6 g4 e5 g3 c7 g2 h6 Bd7 c8Q Bg7 a7 Qf8 Qc7 Bf6 Nc3 b1R Rh3 b2 Qb3 d1R Rf3 Qc5 Qa2 Qc4 Bd3 f1N Bg5 Na6 Be4 Ne3 Nge2 Rd3 Nc1 Ke7 e6 Re8 Qca5 Kd6 e7 Bc6 Qc7+ Ke6 Na4 Qb4 Nb6 Bb7 Nd7 Nc4 Nb8 Qa4 Bh4 Bc3 Be1 d4 Kg7 Qc2 Kg6 Qe2 Kg7 Rf8 e8N Rf6 Nd6 Ke5 Nc8+ Rd6 Ne7 Nb6 Rh3 Kf4 Re3 Nf6 Rf3+ Kg4 Kg6 Re6 Kg7 Rf8 h8B Ng8 Kh7 Rd8 Be5 Rd5 Bh8 Rb5 Bf6 Rb3 Bg5 Rb4 Nb3 Rbd1 Nc1 b1Q Qc2 Qd2 Ra5 Qe2 Qa2 Bb2 Re5 Qbc2 Kg7 Qcd2 h7 Qf4 h8Q Qg3 Qh6 Qh4 Bf2 Re1 Kh7 Rh1 Be1
3bkq1N/P1pqrQ2/3R4/6nB/7K/2pQNRn1/p1R1bB2/qNnB1rq1 b - - 0 1 illegal: No possible last move, all moves rejected
2Q3b1/pn3R1q/N1nq3N/1Br3P1/p1Nkpr1r/K2RbQBQ/2R5/3r1n2 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 d4 Kd7 Kd2 Kd6 Kc2 c5 b4 h5 Kb2 e5 f4 h3 g4 e3 f5 e4 f6 c4 b5 e2 g5 e1N f7 h2 b6 c3+ Ka3 h4 b7 h3 Bb5 c2 Qd3 Bg4 Nd2 Nf3 Ne2 Rh4 Rf1 h1Q Ra2 h2 Ng3 Nd7 b8N Ne7 Na6 Nc6 Qc3 Be7 f8Q Nc5 Qh6+ Be6 Nc4+ Kd7 d6 Nd2 d5 Bg8 Qhh8 Nb7 Rf7 Nf1 Bf4 c1R Qf3 Rc8 Nf5 Rd1 Bg3 Rf4 Nh6 Qc7 Rf5 Bf6 Rd2 Bd4 Rc2 Be3 Rf6 Qg1 Rf8 h1R Rf5 Rhh4 Rf7+ Kd8 d7 Qh2 Qh7 Qe5 Qf5 Qh8 Qh3 Qh7 Nc5 Kc7 d8Q+ Kb8 d6 Qd2 d7 Qd6 Qe8 Kc7 Na5 Kb6 d8R Qe6 Na6 Qd6+ Nb4 Rc7 Nc4+ Kc5 Rdd7 Kd4 Qc8 Ne7 Rd8 Rc5 Na6 Nc6 Rf5 Qdd7 Re2 Kc3 Rf7 Qe6 Rdd2 Qd6 Rc2+ Kd4 Re1 Bf2 Re3 Bg1 Rec3 Be3 Rd3+
1RQ3K1/p1n2R2/5pn1/1Bp1N1Nk/3B2bB/3n1r1P/1QQ1rr2/bRr2qq1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 e4 c5 d4 c3 b4 c2 b6 f3 Kg3 f2 b7 Nf6 b5 Nfd7 h3 Rh5 e5 Rh7 d5 Qa5 e6 Qe1 d6 Na6 b8R Nc7 e7 Bg7 b6 Ne5 b7 Ng6 Be3 c1N Nd2 Nd3 Rb1 Ba1 Bd4 Rh8 Be2 Rf8 Qc2 Qc1 Rh2 f1R Ne4 Rf2 Nf3 Qd1 Ne5 Rf3+ Kg2 g3 Bf1 g4 Ng5 Nf2 Ba6 Nd3 Rh1 Qe1 Rf1 Qc1 Kh1 g2+ Kh2 Rf2 Kg3 Re2 Rf4 Qf1 Rf3 Nh8 Kh4 g1Q Kh5 g3 Kh6 g2 Kh7 Ng6 Rb6 Qh2 Rb1 g1R Nc6 Rh1 Bb5 Qhg1 Rf4 Rh8+ Kg7 Rh4 Rf5 Rf4 Kg8 Rf3 Ne4 Kd7 Ne5+ Ke6 d7 Rff2 d8B Bd7 Rf4 Rf3 Rg4 Kf5 e8Q Ref2 Bh4 f6 Rg5+ Kf4 Rh5 Bg4 Rh7 Kf5 Qc6 Kf4 Ng5 Kf5 Rf8 Re8 b8Q Kf4 Rf7 Re7 Nc4 Ree2 Ne5 Ne8 Re1 Qh2 Bc4 Qfg2 Rb1 Rc1 Nh7 Qhg1 Qbb2 Q2f1 Bb5 Kf5 Qa6 Nc7 Rb8 Kf4 Nf8 Kf5 Qc8+ Kf4 Bg3+ Kg5 Nh7+ Kh6 Ng5 Kh5 Bh4
3B3n/B1p2n1K/2q1rN2/PR2bkNb/p6Q/2rr3R/pQ3N1R/1r1r1B1r b - - 0 1 illegal: No proof kernel
1Nn2Q2/p2K1B2/3bp3/PB1BR1b1/3rR3/bp1bR1N1/1q2Qkr1/3bbNn1 b - - 0 1 illegal: No proof kernel
1B1n1N1r/1r1bQ3/r3R1b1/3BbB2/Pr1kqQbN/1p1N3R/3Kp1np/6R1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 a4 Kd7 f4 Kd6 d4 h5 g4 c5 g5 b5 g6 e5 g7 e3 f5 e4 f6 h3 f7 e2 Na3 h4 Bd2 b3 Rh2 b2 Qb3 b1B Qc2 c4 Qd3 b4 Rf2 h2 Qh3 h1B Qg4 h3 Qg6+ Nf6 g8B c3 Nf3 h2 Qg2 b3 Nc2 Nc6 Qg5 Qe7 Nh4 Nd8 Bh3 Bg4 Rf3 Ra6 Nb4 c2 Nd3 Bg7 f8N Nh5 Bf4+ Be5 Kd2 c1R Bf7 Bd7 Bf5 e1R Rh3 Rc7 Bg3 Bc2 Qf4 Rb7 Rd1 Re3 Rg1 Bf3 B7e6 Bg4 Bg8 Kc7 d6+ Kb6 d5 Re1 Bf7 Rc1 B7e6 Bb1 Bf7 Rc4 Bg8 Rb4 Bf7 Bc6 d7 Bc2 d6 e3+ Ke1 e2 Kd2 Bb5 Bd5 Qh7 Bfe6 Qe4 Bf5 Ne6 d8R Bd7 Re8 Nd8 Re6 Bb1 Qf3 Nf4 Qf1 Ng2 Qf4 Bb5 d7+ Bc6 Nb2 Kc5 Nd3+ Kd4 Rd1 Nf7 d8Q Bd7 Qe7 Nd8 Nc5 Bd3 Rg1 B3b5 Nd3 Be8 Qf1 Bg6 Qc1 Bd7 Bf4 Bf6 Bb8 Bg7 Qf1 Be5 Qf4
N2qbB2/1BQN4/4R2p/2pr1QBN/3nnr2/1P1r1pnQ/K1krRb1n/8 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 g4 Kd7 e4 Ke6 d4 c5 Kd2 f5 Kc2 a5 d5+ Ke5 b6 h6 b7 h3 g5 h2 d6 f3 b3 f2 Kb2 c3+ Ka2 f4 d7 f3 g6 a4 g7 a3 Bg5 c2 Nd2 Kd4 e5 Kc3 e6 c1R e7 Ra6 e8N Nc6 b8Q Nf6 g8Q Ne4 Qc7 Nd4 Nc4 Bd6 Nf6 Bg3 Qe6 Rf8 Qf5 Rd6 Nb6 Rd5 Ba6 f1N Bb7 Bf2 Nh3 Rb1 Qe2 Rd1 Na8 Rd3 Nf4 Rf7 Qe3 Kc2 N4h5 Rf8 Rg1 h1N Re1 Nhg3 Rg2 Nh2 Qh3 Rf7 Qef4 Rd2 Qff5 Rd3 Bc6 Ba6 Bb7 Bb5 Ka1 a2 Re3 Qe7 d8B Be8 Nd7 Qd6 Bde7 Qb6 Qh7 Rf4 Bf8 Qf6 Re1 Qd8 Qg6 Kd2 Kb2 a1R Qgf5 Rd1 Ka2 Kc2 Re3 R1d2 Re2 Re3 Rg1 Rd3 Rge1 Nf6 Re6 Nfe4 Re2
1R3KB1/4BQ2/n1QNpR1p/1P1b2N1/1bR3n1/p2b2k1/1BrN3q/2n1rn1b b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 a5 c4 d5 b4 e6 g5+ Kf5 g6 h6 c5 d3 Kc3 d2 Kd4 e3 g7 e2 c6 Kg4 Ke5 a4 c7 h3 f5 d4 b6 h2 b7 d3 f6 Kg3 f7 e1N b5 Qh4 Nh3 Na6 b8R Bb4 f8B Nf6 Bb2 Bb7 c8N Bd5 Qc2 d1N Nd2 Ne3 Nd6 a3 Rc1 Rg8 Bg2 Nf1 Qc6 Ra7 Rc3 Rc7 Be4 Qh5+ Ng5 Ng4+ Kd4 Qh3 Be7 Qg2 Rg1 h1B Rc4 Rf8 g8Q Rf5 Nb3 d2 Qf7 d1B Nd2 Re5 Bh7 Be2 Bg8 Re3 Qh5 Nd3 Qf7 Nfh2 Rd1 Nc1 Rf1 Bd3 Rf2 Re1 Rf6 Ne3 Ke5 Nhf1 Rff4 Qh2 Kf6 Rc8 Kg7 Ng4 Rf6 Rc7 Qb6 Rc6 Kf8 Rc7 Re4 Rc4 Qc6 Rc2 Rc4
8/1Q1Q4/k2p2R1/1N1b2r1/p2PrpnB/2n2rr1/b2B1RqN/K1nR1BnQ b - - 0 1 legal: proof: b4 g5 f4 e5 h4 gxh4 a4 exf4 b5 Bb4 c3 b6 a5 bxa5 cxb4 a4 e4 c5 d4 a5 Kd2 h5 Kc3 f5 Kb2 f3 g4 c4 g5 h3 e5 h4 g6 h2 b6 f4 e6 h3 b5 a3+ Ka2 f2 b7 a4 b6 d6 g7 c3 e7 Kd7 e8R Kc6 Bd3 f1R Bd2 c2 Qg4 Ne7 g8Q Nd5 Qe2 Rh5 Qge6 Rf3 Rh8 Qg8 Bg6 Rg5 Qg2 Kb5 Bf7 Nc6 b8Q Ne5 b7 Ng4 Rh7 Ka6 Nc3 c1N+ Kb1 Qg7 Rh6 a2+ Kb2 Rg3 Nb5 Nc3 Rg6 Bd7 Qc7 Re8 b8B N1e2 Qe7 Be6 Nf3 Ng1 Rf1 a1N Qed7 Ba2 Bc4 Re4 Rf2 Nb3 Bf1 Nc1 Ka1 Qh6 Re2 Rf5 Ne1 Nf3 Be3 Re7 Rc2 Qh8 Bc4 Rh5 Ba7 Qa8 Bb6 Ree5 Rf1 h1R Qcc8+ Qb7 Bd8 h2 Bh4 Rhg5 Qcc7 Rg1 Qh1 Rh3 Qcc8 Rg2 Be2 Ng1 Nf3 Rf2 Bd3 Rg3 Rd1 Re8 Bf1 Re7 Qg2 h1B Qh3 Bg2 Qh1 Ree5 Qb8 Qe4 Rcd2 Qc2 Nh2 Bgd5 Qbc7 Rff3 Rg2 Qe2 Bd2 Re4 Qb8 Qe3 Re2 Qf2 Qbc7 Qg2 Rf2 Re1 Qb8 Re4 Qbb7+
6br/brrPNk1n/1B1Q3n/4p3/pNpB1q2/1Q2rR1R/1NK1b1B1/1Rb5 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 a5 d4 c5 Kd2 h5 f4 e5 b4 c3+ Kc2 c4 f5 e3 g5 e2 g6 e1R f6 h3 f7+ Ke7 g7 h4 b6 h2 d5 a4 d6+ Kf6 b5 h3 b7 Qa5 b6 Qc5 Be3 Be6 Nf3 Ra7 Bg2 Qd4 Na3 Nh6 Rb1 Qf4 Bd4 Re3 Ne1 Nd7 b8Q Rc7 g8N+ Kg7 b7 Nf6 d7 Nh7 Qd2 Bc5 f8R Ba7 Nd3 Bd5 Ne7 Bg8 Rhf1 h1R Nb2 h2 Rf3 Rg1 Rh3 h1B Bb6 Rd1 Qd6 Rd5 Rf5 Rb5 Rf6 Qd4 Rff3 Qf4 Qb4 Kf7 Qb3 Rc8 Qd6 Rc7 b8B Rb4 Kc1 c2 Kd2 c1B+ Kc2 Rc6 Bd4 Rb7 Bc7 Rc5 Bb6 Rcc7 Nb5 Rb8 Nc3 Rbb7 Bf1 Bg2 Na2 Bh1 Nb4 Bg2 Rfg3 Bf3 Bg2 Be2 Rf3
k3bR1K/3Pb1RN/r2RB2b/prb5/1BN4p/nQQpB1n1/2n2q1n/6N1 b - - 0 1 illegal: No proof kernel
2n1k1n1/2p1pRN1/1b5Q/1bN1B1rR/RNQQ1b1n/PKbB3p/n3rq2/8 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 d4 b5 Kd2 h5 Kc2 e3 f4 h4 g4 c3 d5 e2 f5 e1B g6 Nd7 g7 Nb8 g5 Bf2 f6 Nd7 d6 Bb6 g6 Ba6 Nf3 Rh5 Nbd2 Rg5 Kb3 c2 Bb2 c1B Ne4 Bf4 Nd4 h3 Nc5 Qb8 Nde6 Qa7 Bd3 Rd8 Rf1 Rb8 Kc2 b3+ Kc3 Rb7 Kb4 Rb8 Be5 b2 Kb3 b1N Qd2 b4 Qb2 Na3 Qd4 Nc2 Rf3 Ne3 Rf2 Nh6 g8R Nef5 g7 Nh4 Rh8 Ng8 Rh5 Bb5 Rff1 Ba5 Rf2 Nb6 Rf3 Nc8 d7+ Kf7 d8N+ Ke8 Nc6 Bb6 a3 Rb7 Rc1 Rb8 Rc4 Rb7 Kb2 b3 Ra4 Rb8 Kc3 b2 Kb3 b1N Nb4 Nc3 Rf1 Na2 Rf2 Nh6 g8Q Rb7 Qh8 Ng8 Qc4 Bg7 Qh6 Bh8 Ng7+ Kd8 f7 Rb8 Ne8 Bf6 f8Q Bg7 Bb2 Bc3 Qff6 Rb7 Ng7 Rb8 Nf5 Ke8 Qd6 Qb7 Qdd4 Qf3 Re2 Qf2 Re6 Na7 Rf6 Rd8 Rf7 Nc8 Ba1 Rd5 Bb2 Re5 Ba1 Re2 Bb2 Nd6 Ng7+ Kd8 Qce6 Be1 Qde3 Nc8 Qc4 Bd2 Be5 Bc3 Nf5 Ke8 Qee4 Re3 Qed4 Re2 Ng7+
4k3/p2bp2b/P1bBN2K/Nn2pqBB/1bN3b1/4Q2q/1Q1R4/R2qQrr1 b - - 0 1 illegal: No possible last move, all moves rejected
QRqBQk1r/p5r1/1bNrbK2/4pB2/Pq3pN1/rR5b/R1N2n2/rQ6 b - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 bxc4 h5 Nd7 Rh3 Ne5 Rh1 Ng6 hxg6 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 e5 b4 f5 a4 h5 d4 c5 d5 e3+ Kf3 c3 b5 c2 d6 c4 b6 c3 b7 h4 b8R e2 g7 e1Q g6 h3 Rb7 h2 Ba3 c1R Rb8 c2 Ra2 Be6 Bh3 Nf6 g8Q Ng4 g7 Qb4 d7+ Ke7 Ne2 Qc8 Nd4 Nf2 d8N Rh6 Nd2 Ra1 Nc4 c1R Ne3 Rc3 Qb1 Rg6 Rd1 h1R Nc2 Rhg1 Rd3 Rb3 Bc1 Ra3 Rb3 Rd1 Qh8 Rd6 g8Q Rg7 Ng4 Ke8 Bd2 Ke7 Nc6+ Ke8 Kg2 f3+ Kg3 f4+ Kh4 Rd5 Qgh7 Rd6 Qe4 Kf7 Bc3 Be7+ Kh5 Bd8 Bd4 Bc7 Bb6 Bd8 Ba5 Bc7 Qd8 Bb6 Qd7+ Kf8 Kh6 Rh7+ Kg5 Rg7+ Kf6 Nd3 Rab2 f2 Ra2 f1B Qd5 Nf2 Qh1 Bd4 Bd8 Bg2 Nh6 Bb6 Bf5 Bf1 Ng4 Bh3 Na5 Bc7 Rb5 Kg8 Be7 Qa6 Rb7 Re8 Rb8 Qc8 Qa8 Bb6 Nc6 Rf7+ Kg5 Kg7 Bd8 Rh8 Qe8 Rfd7 Qh5 Kf8 Kf6 Rg7 Qe8+
N2n1bN1/1p1b1Bk1/q2p4/NqB1b3/pR5n/1q1P2bQ/n1QK1RQ1/4B2r b - - 0 1 illegal: No proof kernel
2Q3nk/1p1nn3/3BBB1R/4r2r/1P1nqQ2/Rp4pn/1N3rNN/1bKn1R2 b - - 0 1 illegal: No possible last move
qRk2r2/B1qpb1N1/2pP3Q/2np2nn/NKR1r3/Q1n1N1n1/3B2R1/1B2n3 b - - 0 1 illegal: No proof kernel
1b6/1Q6/KNn1p1Nr/2pr1nPQ/RqR1N3/p2nk3/1BBbpRBr/3b4 b - - 0 1 legal: proof: e4 b5 c4 d5 a4 bxa4 h4 dxc4 e5 g5 hxg5 f6 Ke2 fxe5 Ke1 e4 Ke2 Kd7 g4 Kd6 b4 Kd5 d4 h5 f4 c5 f5 a5 f6 h4 g6 c3 g7 a3 b5 e3 Kd3 c2 f7 a2 g5 h3 b6 a4 b7 h2 Ne2 e6 Nec3+ Kd6 Kc4 Rh6 Kb5 Ne7 g8B Nbc6 d5 Ke5 d6 Kf4 b8Q Nf5 d7+ Bd6 f8N Bb7 Bb2 c1N Bg2 Nd3 Ne4 e2 Nbd2 Ke3 Rf1 h1R Rf2 R1h2 Ng6 a3 Rc1 a1B Rc4 Qf6 d8R Qc3 Bh7 Bc7 Qc8 Bb8 Qh1 Ba6+ Kb6 Bb5 Qb7 Ba4 Rdd4 Bd1 Kb5 Ra4 Kb6 Rb4+ Ka6 Rb3 Ra4 Qb4 Rc4 Rc3 Nd6 Rc1 N2e4 Rc2 Nc8 Rd2 Bc3 Bb2 Nb6 Bc1 Bf6 Ne1 Bb2 Rd5 Ng3 Nd3 Ne4 R2h5 Qh4 Bd2 Qg4 Rh3 Qh5 Rh2 Nd6 Ng7 Ne7 Nde5 Bc2 Nf5 Ne4 Nd3 Ng6
2Nb4/R1RBnN2/1Rr4P/4Qk2/rN5p/Bq3pn1/bn1b2pp/K1Q2B1q b - - 0 1 illegal: No possible last move
2B2Qnb/3n1B2/3rp1qQ/Bpq4P/1r4q1/R2br3/p1pR1QN1/N1KR2k1 b - - 0 1 illegal: No possible last move
1b1N3k/B6r/2Bp1QQq/4p1nb/q1N2nR1/PrR1K3/3n1ppb/2BQ3R b - - 0 1 illegal: No proof kernel
b2NQ3/2k1KR1B/2pppB1b/2QqnB1r/2q1P2N/2q4p/R2Rn2b/Q5r1 b - - 0 1 illegal: No proof kernel
5NK1/r3R3/Npn1QbNq/1brq4/Bp1pkBP1/Q6Q/1R1B1pn1/2b4r b - - 0 1 illegal: No proof kernel
B5BB/q2rnQr1/1p2p3/N3N1Q1/knq2P2/1bR2N1p/Q5bp/2K1bRq1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 Kd2 c5 a4 h5 f4 b3 g4 e3+ Kc3 c4 Kb2 b6 g5 e2 d6 Kc6 d7 e1Q a5 Kb5 d5 h3 a6 e6 a7 h4 g6 h2 d6 h3 g7 Qc7 d8Q Nc6 d7 Nb4 Ra3 Ne7 g8B Rh7 Nd2 Bb7 Ndf3 Rg7 Ne5 Bg2 Qh5 Qe4 Qde8 Rd8 a8Q Qa7 Ngf3 Qe1 Bd3 Qg1 Be4 c3+ Kb1 b2 Qg5 Qb8 Rb3 Qa7 Qf7 Ka4 Bb7 Rc8 d8N Rc7 Ndc6 Rd7 Bc8 Na6 Bb7 c2+ Ka2 b1B+ Kb2 Ba2 Na5 Nb4 Rc3 Bc4 Be3 Bb3 Bd4 Qe1 Rf1 Qf2 Kc1 Qg1 Kd2 c1Q+ Ke2 Qb1 Kd2 Qd3+ Kc1 Qda6 Qd8 Qc4 Ba8 Nec6 Qc8 Bd6 Qa6 Ne7 Nd3 Bc5 Bf6 Bf2 Nde5 Qc5 Qe2 Qc4 Qd2 Be1 Qd5 Rg6 Bh8 Rg7 Qd2 Qcc5 Qb2 Qc4 Qa2+
nn1R3r/1rB5/p1k2qQ1/3ppR2/b2b2p1/K1N4B/1N2qP2/1QnN1RQb b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 d5 b4 Kd7 c4 g5 Kc2 d3+ Kb3 g3 h4 a6 c5 g2 b6 e3 b5 d2 h5 e6 b7 g4 c6+ Kc7 h6 e2 b6+ Kd6 h7 e1Q c7 Nd7 b8R Ne7 b7 Kc6 Ka3 Nb6 Nc3 Qe2 Rh5 Na4 Rf5 Bd7 c8N Bg7 Nb6 Bd4 Nc4 Ra7 Nb2 Nb6 Rb1 Qf8 Rd8 Na8 b8Q Qf6 Qc2 d1B Bf4 Be8 Bc7 e5 Qd3 Bc2 Ncd1 Rb7 Qg3 Be4 Rc1+ Qc2 Ne2 g1N Nec3 Ne2 Qg1 Bh1 Bh3 Bd7 Ra1 Nc1 Rb1 Qe2 Ra1 Rf8 h8Q Be8 Qh7 Rh8 Ka4 Nc8 Ka3 Ncb6 Qg6 Nd7 Qc8 Nb8 Qd7+ Kc5 Qe7+ Kc6 Qb4 Bd7 Qb3 Kc5 Qa2 Ba4 Qb1 Kc6 Qc2 Qe4 Ne3 Na2 Rf1 Nc1 Ned1 Qe2 Qb1
1B1K1Q2/4rr1B/p2B1q1P/1qnpnr1k/4n2b/p1N1p3/2QNR3/3b1QRR b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 exf5 h6 Ra3 hxg5 Ra1 g4 Kd2 Kf7 Kd3 g5 Kc4 e5 Kb5 d5 c4 e4 f4 g3 b4 g4 h4 e3 c5 g2 h5 g3 h6 d3 f6 Kg6 c6 d2 c7 a6+ Kb6 Bg4 f7 Nf6 b5 Ne4 Qc2 d1Q Nf3 g1R Nc3 g2 Ba3 Qe2 Nd2 Be7 f8Q Rh7 Bd6 Bh4 f5+ Kh5 f6 a3 f7 Qf6 c8R Nd7+ Kc7 Ndc5 b6 Qb5 b7 Ra7 Bd3 Rf1 Rb8 Rf5 Rag1 Bd1 Rc8 Re5 Rb8 Re7+ Kd8 Rg7 Rc8 Rg5 b8B Rf5 Rc6 Na4 Rc4 Nac5 Rb4 Rab7 Rb1 Ra7 Re1 g1N Re2 Nf3 Rg1 Nf2 Rh1 Ne5 Rg1 Rf3 Bh7 Rf5 Qg8 Nfe4 Qg2 Rab7 Rh1 Re6+ Kc8 Ra7 f8Q Rf7 Ra1 Ree7 Kd8 Nf2 Qa4 Bc2 Rag1 Bd1 Qf1 Nfe4 Qc2
RK4B1/2p1r3/2bNk1Q1/r1P5/Qpq2Rbp/3Bn1Nq/N1Qnpb2/B5r1 b - - 0 1 illegal: No possible last move
6nK/B1pRq3/1N1p4/2N1r1RQ/r2qB2p/p3rPB1/1b3QqQ/kb1R3n b - - 0 1 illegal: No proof kernel
KBQnkrqq/Qp5R/1N1r2rR/4pp2/b3N1B1/Pn1Nb3/3R1p2/Q1b5 b - - 0 1 illegal: No proof kernel
3RQ2R/1p2nq1n/Q2Nrp1K/q1rPB3/2p4k/3BQ1pB/q1N3N1/2b1n2b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 d4 Kf6 a4 Kg5 h4+ Kh5 e4 c5 e5 g5 a5 c4 d6 f6 d7 f3 Kg3 b3 a6 f2 e6 b2 d5 Be7 a7 Qe8 d8N Nh6 Ne2 Nd7 Qd4 Ng8 Bh3 f1Q Qe3 Qf7 Na3 b1Q Bb2 Qa2 Nc2 Ba3 e7 Nf8 e8B Nh7 Be5 Bc1 Bd7 Qa5 Bf5 Ne7 Bd3 Re8 Ra2 Rb8 a8Q Bf5 Qa6 Be4 Rh2 Bh1 Nf4+ Kh6 h5 Rc8 Ra4 Rc5 Ra1 Bd2 Ra3 Qb1 Ra1 Qba2 Re1 Qe6 Ree2 Bc1 Nf7+ Kg7 Nd6 Kh6 Reg2 Qf7 Kf2 g3+ Kf3 Ng8 Kg4 Re6 Re2 g2 Kf5 g1N Kg4 Kg7 h6+ Kf8 Kf5 g4 Re1 g3 Ree2 Qe7 Kg6 Nf3 Kh5 Ne1 Kg6 Ng5 h7 Qg7+ Kh5 Ne7 h8Q+ Qg8 Nf5 Kf7 Kh6 Qa8 Qd8 Nh7 Qd7 Qe8 Nd6+ Kf8 Qa4 Qf7 Q4c6 Kg8 Qe8+ Qf8+ Kh5 Kg7 Qea8 Ng8 Bg2 Qe7 Ba1 Qd7 Qd4 Ng5 Re4 Re5 Qe3 Kh7 Rh4 Re8 Bh3 Kg7 Re6 Qdc7 Be5 Qf7+ Kg4 Re7 Rh8 Nh7 Kf5 Kh6 Qc8 Rd7 Re8 Re7 Qd7 Re6 Rd8 Rb5 Qe8 Rc5 Ng2+ Kh5 Nf4+ Kh4 Qf3 Qfc7 Kg6 Qd7 Qe3 Qe7 Qeb5 Qe8+ Kg7 Ne7 Kh6 Qg8 Qe8 Qf7 Ng2+
1QnN1B2/p1R1B2n/1rqqr2p/n5NN/2b1p1p1/bBR4k/P2q1Q2/1K2Q3 b - - 0 1 legal: proof: g4 d5 h4 c5 e4 dxe4 b4 f6 g5 fxg5 bxc5 gxh4 Ba6 h3 Be2 Qb6 Bf1 Qd8 f4 Kf7 c4 Ke6 d4 Kf5 Kd2 e5 Kc2 b5 d5 g5 c6 h2 c7 h6 c5 e3 d6 e2 d7 Kg4 c6 b4 f5 Nf6 Nc3 b3+ Kb1 b2 Ne4 Nh7 f6 Ba3 f7 Re8 f8B Re6 Qe1 Ba6 c8Q Bc4 c7 Nc6 Qb8 Ne7 Nf3 Nc8 Ng3 e4 Qb6 Rb8 Qbf2 Rbb6 Nh5 Qe7 d8N Qd6 Bf4 Qc6 Bg3 Qd6 Rg1 h1Q Bh4+ Qg2 Rh1 Qc6 Rh3 Qh2 Kc2 Qhd6 Rc1 b1N Rg3+ Kf5 Rh3 g4 Bhe7 Nd2 Rg3 Nb3 Kb1 Ra6 Rh3 Na5 Rc2 Nb6 c8Q Kg6 Qb7 Nc8 Qb8 Rb6+ Qb4 e1Q+ Rc1 Bd5 Bc4 Qd2 Bb3 Bc4 Qc3 Qg5 Qce1 Qgd2 Rc3 Kf5 Nf6 Kf4 Rh5 Qa4 Rc5 Qe8 Rc7 Qec6 Qff1 Qf2 Qfe2 Kg3 Nh5+ Kh3 Qe3 Qe2 Q3f2 Qed2 Ng5#
1b1B2Qb/bqNk1R1p/2R1bprB/7K/1p1bpPQ1/2B2N2/5N2/2nRr1n1 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 d5 hxg5 dxe4 a4 bxa4 b5 c6 b6 Qd5 Bd3 Qd8 Bb5 cxb5 Ke2 e5 g4 a5 c4 f6 d4 b4 c5 a3 g6 e3 Kf3 a4 g5 a2 d5 a3 d6 e2 g7 e1B g6 Kd7 Kg4 e4 b7 Qe7 Bh6 Nc6 b8B Nd4 f4 Bf2 Kh5 Nb3 Nf3 Nc1 Nc3 Qf7 Bc7 Ne7 g8N Bg7 Nb5 Nf5 Bb6 Bg1 Nc7 Nd4 Ba7 Nde2 c6+ Kd8 Bf2 Be6 Be1 Ba7 d7 Ng1 Bc3 Bb8 Qe2 Ra7 Qg2 Ra6 Qg4 Ra4 Ne7 Rg8 Nf5 Bh8 Ne3 Ke7 d8B+ Kd6 Na8 Qb7 c7 Kd7 c8R Ba7 g7 Bb8 Rb1 a1B Nd1 a2 Nc7 Bb2 Rh2 a1B Nf2 Ra6 Rg2 Rc6 Bd2 Bd4 Bc3 Bda7 Rg3 Rd6 Rg2 Rd1 Rg3 Rf8 g8Q Re1 Rg2 Rf7 Rg3 Rg7 Rg2 Nd3 Rd1 Rg6 Ne8 Bb2 Rc6 Bc1 Nc7 Bce3 Qf5 Bec5 Rg5 Bd4 Qg4 Nc1 Re5 Bf5 Re8 Be6 Rf8 Bc5 Nh1 Bb6 Nf2 B6a7 Rf7+
2rn2QB/4nqnN/3k1RRQ/B2r1RKp/4B2p/b1N2bPN/1p1p4/b1n5 b - - 0 1 illegal: No possible last move
r2n1b1k/4B3/1Q4Br/1K1np3/rRP2p2/b1RN1N1p/b2QpQ2/1Nq2B1b b - - 0 1 illegal: No proof kernel
4R1n1/K1k1q1Nn/4RB2/p2p4/nR1Pr2N/pnQQp1Bb/1b1Q1r1r/7N b - - 0 1 illegal: No possible last move
1n1RR3/k1B4q/4Pn2/4r1n1/2BR2rp/1pbQNpp1/2Q3nQ/1bNKBr2 b - - 0 1 illegal: No proof kernel
1Nk1r1n1/B2rbR1Q/pK1p3Q/1b1Q1qPr/r3p1n1/1R2N3/1p2BR1B/n7 b - - 0 1 illegal: No proof kernel
4bb2/2kN1QpK/6NB/1qn2bR1/N1p1P3/Bp3Q2/1Q1nnR1p/2b1rBr1 b - - 0 1 illegal: No proof kernel
2B3Q1/1nk2P2/b2nNb2/1p2q1rp/1n1N2pr/N1R1B3/R1p1KQ1r/2r3QR b - - 0 1 illegal: No proof kernel
3n3Q/k3p1p1/1B1r1N2/2n1nBb1/1R4p1/1NKPQ1bN/Q1p3R1/1B2nbqr b - - 0 1 illegal: No proof kernel forced: wxDB
1q3R2/bQnp1PBb/Q3B3/QNp1pBnn/n4NN1/k1rp4/4r3/K1b2R2 b - - 0 1 illegal: No proof kernel
r1Q1k3/1Kp1N2Q/2B1p1b1/1nbrn3/1PB3p1/Bpb1N3/1QR1Nbqr/R7 b - - 0 1 illegal: No possible last move
2NrbB2/kp1p1QN1/2rp1rqr/2P3b1/1QR5/3B4/KBN1bpn1/2RR1n2 b - - 0 1 illegal: No proof kernel forced: wxLB
bBRRr2N/p7/b1pp1Q1R/2n3NP/1r2B2q/nQ4pb/K3kb2/1N1Q1n2 b - - 0 1 illegal: No proof kernel
q3BN2/2K3nk/Q2pQbb1/2NR2pr/R1b3qp/n4QpP/2N1b2B/2rR4 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 Kf7 Kd3 Kg6 Kc4 h5 Kd5 a5 c4 d3 e4 a4 f4 d2 h3 a3 f5+ Kh7 b6 g5 f6 a2 b7 h4 c5 b3 f7 b2 c6 d6 c7 Ra5+ Bb5 Bh6 e5 Ra7 e6 Bg7 e7 Nd7 Kc6 Bf6 b8R Nh6 e8Q Nf5 Qf3 d1B Bf4 Be2 Qe6 Ba6 c8Q Nb6 Nc3 b1B Ne4 Nc4 Nc5 Ng7 Bh2 g3 Ba4 Qg8 Rb5 Bg6 Qa8 Na3 f8N+ Kh6 Rd1 a1Q Qb7 Qd4 Kc7 Bc4 Ne2 Qg4 Nd4 Ra8 Nc2 Rc8+ Kb6 Be2 Rb4 Rc7 Rd5 Bac4 Rhd1 Rh7 Be8 Rh8 Nfd7 Kh7 Qa6 Qf8 Ra4 Qg8 Bf7 Qa8 Be8 Rb7+ Kc6 Rb1+ Kc7 Rc1 Qee3 Kg8 Nf8 Rh5 Qe6+ Kh8 Nfd7 Kh7 Nf8+
2nr3N/2bq1B1k/1p2p3/3pb1q1/1P2RQR1/2Br1B2/qpq3Q1/QR2K1Nn b - - 0 1 illegal: No proof kernel
B7/n1Q2pq1/bQb4R/3q2p1/p3R1kN/1Q1r1NNr/PpKn3B/1n1R3n b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 Ke2 c5 Ke1 cxb4 f4 hxg4 Nc3 e5 Bg2 e3 Nb1 e4 Bh3 Bd6 Bf1 Be5 fxe5 Bd7 Bd3 Bf5 Bf1 Bc8 d4 Kd7 c4 Ke6 h4 Kf5 e6 a5 e7 b5 e8N b3 c5 e2 Kd2 e1N h5 a4 h6 b4 h7 e3+ Ke2 g3 c6 g2 d5 b2 d6 b3 c7 Kg4 d7 Nc2 Kd3+ e2 Nh3 g1Q Bg2 Nf6 Nd2 b1B Nd6 b2 Nf3 Nh5 Bf4 Ng3 Nhg5 Nc6 Rh6 Nh1 Nh4 Na7 Ngf3 e1N+ Kd2 g5 Ndf5 Ba6 c8Q Na3 Qc7 Be4 Ng3 Bc6 Qb3 Nb1+ Kd1 Qg8 d8Q Qg7 Re6 Rc8 Re4 Qc5 Qdd6 Rhd8 h8R Qa5 Rh6 Qd5+ Nd4 Nf3 Kc2 Nfd2 Ndf3 Rd7 Qdb4 Rh8 Qbb6 Nc3 Rd1 Ncb1 Bf1 Qb5 Bc4 Rd3 Be6+ Qf5 Bc8 Qe6 Bb7 Qd5 Ba8 Nf2 Rd6 Rh5 Rh6 Nh1 Ng6 Rh2 Ngh4 Rh3 Ngf5 Qde5 Bh2+ Qf4 Re3 Qfe5 Ng3 Qd5 Re4+
1qN5/1qp4q/1B2p2B/pR2QqrQ/KQb3B1/n3P1n1/pb6/N1r1NRk1 b - - 0 1 legal: proof: g4 d5 h4 b5 a4 bxa4 c4 f6 g5 fxg5 cxd5 gxh4 Ra3 h3 Ra2 Nc6 Ra1 Nb8 f4 Kf7 d4 Kg6 Kd2 Kf5 Kc3 Kg4 Kb4 Kg3 b3 Kf2 d6 h5 d5 g5 f5 e6 f6 a3 f7 a5+ Ka4 h2 d7 h4 b4 a2 d6 g4 b5 h3 b6 g3 b7 g2 Nf3 g1Q Nbd2 Nh6 Ne1 Qgg5 Nb3 Bg7 f8B Bb2 Rb1 Na6 b8Q Qf5 Na1 Nb4 e3 Rh7 Qh5 Ba6 Be2 Nc2 Qb4 Qb8 d8Q Na3 d7 Bc4 Qf6 Rg7 d8N Ra6 Bd1 Rc6 Bg4 Rg5 Nb7 Rc5 Rg1 h1Q Qe5 h2 Nd6 Qhb7 Nc8 h1Q Bd2 Qh3 Bc3 Qh7 Bd4 Nf5 Bh6 Ng3 Rh1 Rc6 Bb6 Qf5 Rh2+ Kg1 Rd2 Qh7 Rd5 Qf1 Rb5 Qff5 Qb3 Bf1 Rd1 Rc1 Qb4 Bc4 Rd7 Qfg6 Rf7 Qd3 Rf2 Qdf5 Rf1+
rqQ2RB1/B3K1Q1/3RN2p/3p2r1/2B1qQ2/Nn1r1p1n/2pknP2/1R1q1b2 b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 Rh3 a5 Rh1 axb4 c3 gxh4 Qd3 b5 Rh3 b3 Qc2 b2 Qd1 b4 Rh2 b3 Rh1 Bb4 cxb4 Ra7 Bf4 Ra6 Bc1 Ra8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kc5 Ke4 a4 d5 g4 f5 a5 h3 a6 f4 e3 d3 g5 f3 g6 h2 g7 d2 a7 h6 b5 Nd7+ Kc6 Ngf6 g8B Nc5 b6 Nh5 b7 Nf4 b8Q Bh3 Na3 b1Q Bc4 b2 Ne2 Bf1 Nd4 Nb3 Ne6 Nh3 Qe2 Qf8 Kd7 d1Q Qc8 c5 Qd2 Qf4 Ke7 Qb8 Qf8 Qd3 Qg7 b1N Rg1 h1R Rg6 Nc3 Rb1 Ne2 Bb2 Rg1 Bd4 Rg5 Rf6 Qe5 Qb4 Rc8 a8R Qb8 Ra6 Q3c2 Rd6 Rc6 Rf8 Rb6 Bb5 c4 Ba6 Kd3 e4 Rb5 e5 c3 Ba7 Kd2 Qg4 Rc5 Bc4 Qe4 Qf4+ Qe3 Nd4 c2 e6 Rc8 Kf6 Rc6 e7 Rb6 e8Q Ra6 Qf5 Qe4 Ne6 Rb6 Qc8 Rb4 Bb5 Rd4 Ke7 Rd3 Qf4+ Qe3 Qe8 Nc3 Rf7 Qa8 Bh7 Ne2 Bc4 Qb7+ Qd7 Ra8 Rf8 Qc7 Bg8 Qb8 Qfd4 Qe5 Qc8 Qf4 Qde5 Qe4 Qf4+
1Q3B2/pr1rN2k/n2pR2n/2q3bK/n2Q3p/2NQqR2/1pr4P/2q1NB1R b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 c5 Bb2 cxb4 Bc1 f5 a4 fxg4 Qd3 b5 Qb3 Ba6 Qd3 b3 Qd2 b4 Qd1 Bb5 axb5 Qc7 Kd2 Qa5 Ke1 Qd8 e4 Kf7 Ke2 Kg6 f4 h5 c4 h4 b6 d3+ Ke3 d6 e5 g3 Kf3 b2 Kg4 g2 e6 b3 b7 d2 f5+ Kh7 e7 g5 e8R Qb6 f6 Qc5 f7 Be7 f8Q Nh6+ Kh5 Na6 Qdf3 d1N b8Q g4+ Qd5 g3 Qf6 Nc3 Ra3 Na4 Nf3 g1Q Ne1 g2 Nc3 b1R Qd4 Bg5 Re6 Rd8 Qf3 Rd7 Qfd3+ Nf5 Bf4 Qe3 Be5 g1Q Bg7 b2 Bf8 Rc1 Rb3 Rc2 Ra3 Qc6 c5 Qc1 Rb3 Qge3 Ra3 Qd5 c6 Qc4 c7 Qc5 c8N Rb7 Re4 Nh6 Ne7 Rd7 Qbb4 Rc8 Qb8 Rcc7 Re6+ Qe4 Qg3 Nf7 Ne2 Rb7 Rd3 Nh6 Nc3 Qe2+ Qf3 Qed2 Qd1 Qe2+ Rf3 Qee3 Q1d3+
r1n2q1r/5r2/qp2p2r/3bk2r/2QNPBK1/1p3pNB/2N2QR1/2n1B1QR b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 f5 h5 f6 hxg4 Na3 e6 Bf4 Be7 Nb1 Qc7 Bg3 Kd8 Bf4 Qa5 Bg5 Kc7 fxe7 Kc6 Bc1 Qd8 Kf2 Kd6 Kg3 f5 e8N+ Ke5 a4 d5 e4 g5 c4 f4+ Kf2 b3 h4 b6 a5 g3+ Kf3 d3 h5 d2 h6 d4 h7 d3 a6 g4+ Kg2 Bb7 a7 Bd5 c5 Nc6 Nd6 Qf8 Ra2 Nb4 c6 Ne7 c7 Nc8 Qf3 d1R Nb5 d2 Ne2 Nd3 Nbd4 Re1 Qf2 d1Q Na3 Qc2 Be3 Qc4 Nac2 Nc1 Bd2 Rd1 Be1 Qa6 Qg1 Rd3 Qf2 Rc3 Rb2 Rc5 Qg1 Ne7 c8Q Ra5 Qc4 Nc8 Qf2 Rc5 Ra2 Rc7 Rb2 Rf7 Ra2 Rb8 a8Q f3+ Kg1 g2 Kh2 g1R Bh3 Rf1 Kg3 Rg1+ Kh4 g3 Kg4 g2 Ng3 Rf1 Qa7 g1R Qe7 Ra8 Qg5+ Kd6 Qge3 Rg2 Qg1 Ke5 Qef2 Rh2 Bg2 Rh6 Bh3 Qe7 Rb2 Rhf8 h8B+ Qf6 Bg7 Rfh8 Bf8 Qd8 Be7 Qf8 Bg5 Rh5 Qfe2 Rf2 Qef1 Rg2 Qff2 Rh2 Bf4+ Kf6 Bf1 Bb7 Qd2 Ra5 Nb4 R2h6 Bh3 Rah5 Qde3 Bd5 Rg2 Na2 Nbc2 Nc1 Bg5+ Ke5 Qef2 Ne2 Be3 Nc1 Bf4+
q1rBR3/3pq1pK/1k2r3/np1NQ1RQ/1n1nN2q/2p1Q1N1/B1P4B/1b2n3 b - - 0 1 legal: proof: g4 f5 b4 a5 d4 axb4 e4 fxe4 g5 c5 g6 c4 Qf3 e6 Qe2 Bc5 dxc5 hxg6 Qd2 g5 Qd1 g4 Ke2 b5 Ke3 e5 h4 c3 a4 b3 f4 g3 c6 b2 f5 g2 h5 Ke7 f6+ Ke8 c7 Rh6 f7+ Ke7 f8B+ Ke6 a5 Rf6 a6 Rf2 h6 Qh4 h7 Nf6 h8Q Nc6 a7 Na5 Nd2 Kd5 Qe1 Kc6 Bc4 b1Q Ba2 Bb7 c8Q+ Kb6 Be7 Bd5 Ne2 g1N Qh5 Nf3 Ng3 Nd4 Qce8 Rc8 Rg1 Qb3 Bca3 Qa4 Bad6 Rf5 Rd1 Rg5 Qf2 Rg6 Rde1 Be6 Ne2 Bf7 Rg5 Bg8 Ng3 Bc4 Qg1 Nd5+ Kf2 Nb4 Ke3 Re6 a8N+ Kc6 Nc7 Kb6 Bd8 Qa3 Kf2 e3+ Kg2 e2 Qe3 e4 Be5 Qf4 Kh3 Qf6 Kg4 Qe7 Nh1 Bd5 Bh2 Qa4 Ng3 Bc4 Qf4 e3 Nde4 Bb3 Qe5 Bd5 Rf1 e1Q Rf8 e2 Rg8 Qa1 Kf4 e1N Rh8 Ndc6 Kf5 Bc4 Qh3 Bd5 Qeh5 Bb3 Re8 Bd5 Qf6 Nd4+ Kg6 Bb3 Kh7 Bd5 Bc4 Q1a2 Qe5 Qa1 Be2 Ba2 Bc4 Bb1 Ba2 Qb2 Rg6 Qbb3 Rg5 Qd5 Qg2 Qa8 Qge2 Qa3 Qe3 Qc1 Qee2 Qf4 Qe3 Qh4 Nd5+
2Q4K/1QNr2Np/2BpR3/2B2Nr1/1b4QP/r1np1b1B/1p4R1/1rkbbn2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 Bd2 Qg5 Be3 exf4 Bc1 f3 Nc3 f4 Nb1 Qf5 gxf5 Bc5 Nc3 Bd6 Nb1 Bf8 Kf2 Ke7 h4 Kf6 e4 Ke5 a4 b5 c4 g5 a5 g4 f6 b3 a6 b4 a7 b2 c5 b3 f7 g3+ Ke1 d3 Kd2 Kd4 c6 g2 e5 f2 e6 f3 e7 Nh6 e8Q Bb4+ Nc3 b1R f8N b2 c7 d6 Qd7 Nc6 Rh2 Bb7 c8Q Ng4 Ne6+ Kc4 Qa4 Rd8 Ng7 Ne3 Ne2 g1B Bh3 f1R Rg2 Bf2 Ng3 Rg1 N3f5 Bg3 Qd1 f2 Qg4+ Kb3 Ra5 f1B Re5 Ne7 Re6 Bf3 Qdb7 Rb8 a8B N7d5 Qf7 Bd1 Bc6 Ra8 Qfb7 Ra3 Qe7 Bc5 Nb5 Bfe2 Qeb7 Nc3 Nc7+ Bb4 Qb5 Nc2 Qb6 Rd7 Qbb7 Ne1 Ke3 Kc2 Kd4 Nf3+ Kc4 Bf2 Be3 Nh2 Bc5 Be1 Kd4 Nf1 Kc4 Nb5 Kd5 Kc1 Ke4 Nc3+ Kf4 Kc2 Kg5 Kc1 Kh6 Bf3 Nh5 Rd8 Kg7 Rd7+ Kh8 Bg3 Rge2 Be1 Nhg7 Rg2 Qg6 Rg5 Rg2 Rb3 Qh5 Ra3 Qg4
b4BK1/nB3p1Q/1r1pk3/1Q2NP2/2pp1RN1/p2rn1RN/3Rn2b/B2bq3 b - - 0 1 illegal: No possible last move, all moves rejected
nB3b2/p3p2N/p1b3k1/q1pRb1r1/rQ4P1/1R1R1Npr/BBQ2N2/K6n b - - 0 1 illegal: No proof kernel
5r2/r2RK1b1/2BR1pPq/Qrpb1N1p/4Q1Np/1n1Q1Rnp/1N2q3/4Bk2 b - - 0 1 illegal: Other
2nr2r1/1Pp5/1R2BQ2/Kbbp4/2RB2pn/1Q1bNpNQ/1pq2B2/3qk2R b - - 0 1 illegal: No proof kernel
rn1B1Q1B/2bpNQN1/RR1P1K1k/3p2pr/3p2b1/2q5/qbpQ2B1/3Nr3 b - - 0 1 illegal: No proof kernel
1q2B3/3N3K/pr1N1Qpb/kqB1p1Q1/qR1nRb2/P3N2p/r1Q1p3/1b4B1 b - - 0 1 legal: proof: g4 b5 e4 f5 h4 d5 c4 bxc4 h5 dxe4 h6 Nd7 Ke2 Ndf6 Ke1 Nh5 Bd3 g6 Bf1 Ng7 hxg7 fxg4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 h5 d4 c5 f4 g3 b4 a6 f5 e5+ f6 c3 a3 g2 b5 c2 d5 c4 d6 h4 d7 e3 Nc3 h3 Nf3 g1B Nd5+ Ka5 b6 c3 b7 Bb4 b8N Qb6 d8Q Nh6 g8Q Bf5 f7 Bh2 Nd2 Bf8 Nd7 Rc8 Qf6 Qb8 Bb5 e2 Ne3 Rc6 Rf1 Rb6 Rf4 Bg7 Qh7 Rc8 f8B Rc5 Bb2 c1Q Rb1 c2 Bd4 Qb2 Ne4 c1Q Nd6 Qcc2 Re4 Qa4 Qc2 Rc7 Bc6 Qbb5 Rb4 Rcb7 Bd5 Rc7 Bf7 Rc8 Be8 Bf4+ Kh4 Rc5 Qg5 Rc3 Qh8 Rb3 Be7 Rb2 Qf8 Ra2 Qff6 Ng4 Bc5 Bh6 Bd8 Nh2 Bc7 Qa7 Bb8 Qb7 Ba7 Qb8 Nd5 Qb3 Bg1 Qc3 Qg3 Qf3 Qd2 Bf8 Rec4 Rb7 Bac5 Bb1 Qc2 Qb3 Re4 Rb6 Ne3 Nf3+ Kg4 Nd4 Qg2 Bh2 Kg5 Q3a4 Qg4 Bg7 Qg2 Bh8 Kh6 Bf4+ Kh7 Bg7 Qg3 Bgh6 Qgg5
5RK1/B3rN2/1Q1b1bNp/QnqBb1p1/q1R1n2p/5bpB/5pQP/1N1k4 b - - 0 1 illegal: Other
K1QrrBkB/pRpn2n1/1b4pn/8/1QRr2b1/PB1p1p2/2Q1rNN1/5N2 b - - 0 1 legal: proof: d4 h5 c4 e5 g4 exd4 f4 hxg4 e4 b5 f5 Qe7 e5 Qe6 fxe6 bxc4 Kf2 d5 h4 f5 b4 f4 e7 Kf7 e8N c3 b5 f3 b6 g6 h5 c2 b7 d3 Ke3 g3 Kd4 g2 h6 d2 e6+ Ke7 Kc5 d4 h7 Nf6 a3 Nc6 b8Q Nd5 Qb4 Rb8 Nd6 Nf4 Bc4 d3 Ne2 g1R Ne4 Nh5 Bb3 Ng7 Nf4 Re1 Nf2 Re2 Rh4 Ne5 Ng2 Nd7+ Kc6+ Ke8 Rf4 Bc5 e7 Bb6 Rc4 Kf7 Ra2 Rd8 h8B Kg8 e8Q+ Kh7 Bb2 c1R Qc2 d1N Nd2 Ne3 Nf1 Ng4 Be5 Rce1 Bd6 Nh6 Bf8 Kg8 Rb2 Re4 Rb1 Rd4 Rb2 Re2 Rb1 Nc5 Qd7 Rde8 Qd8 Bg4 Qc8 Nd7 Rb2 Ra8 Kb7 Nf6 Qf5 Rad8 Qc8 Nd7 Ka8 Nhf5 Rb1 Nh6 Re1 Rd2 Re5 Re2 Rb5 Bc5 Rb8 Bb6 Rb7
n2rkQNq/4Pr1B/2b4p/2p1Q1p1/3R1Bp1/1q2b1pn/4p1BN/N3K1RR b - - 0 1 illegal: Other
3n1b1r/4p2P/1p2N2q/kqBp3Q/2bR1p2/KpB2B2/n1Nr1N1p/1QR4R b - - 0 1 illegal: No proof kernel
nNQ1B3/6bk/2P1r3/3p4/K7/p2nrB1n/1rBn1N1q/R1RRR2R b - - 0 1 legal: proof: d4 b5 h4 e5 f4 c5 a4 cxd4 axb5 g5 e4 f5 exf5 gxh4 fxe5 a5 c4 a4 b3 a3 b6 Ba6 Bb2 Bb5 Bc3 Ba4 bxa4 dxc3 g4 Kf7 b7 Kg7 a5 h5 f6+ Kg6 c5 d6 a6 h3 g5 h4 e6 c2 Kd2 c1N Kc3 h2 Kb4 h3 a7 Rh6 f7 Qb6+ Ka4 Nc6 b8R Qd8 e7 Qd7 e8B Qe7 Qg4 Na5 Nf3 Nc4 Qc8 Kh7 Nc3 Qc7 Ne4 Nd3 Rbb1 Nf6 Re1 Nd7 Ne5 Bg7 f8R Re6 Nf2 Rb8 a8B Rb2 Bf3 d5 Nc6 Nd2 Nb8 Re3 c6 Nb6+ Ka5 Na8+ Ka4 Qe5 B1e2 Qg3 Bd1 Qg2 Bc2 Re6 Rhf1 h1R Rg8 h2 g6+ Kh6 Rac1 Rg1 Red1 h1N Rfe1 Qh2 Rf8 Rg4+ Rf4 Rg5 Rh4+ Rh5 Ra1 Re3 Rc4 Rhe5 Rc5 Re6 Rc3 Bd4 g7 Kh7 g8R Bh8 Rgg1 Bg7 Nh3 Nf2 Rh1 Nfe4 Nf2 Ng5 Bb3 Nh3 Rcc1 Rb1 Bc2 Rb4+ Ka5 Rb2 Ka4
5qR1/2q1b3/4B3/1bpk3q/rqr1N1Qn/RNP4b/1q2B1R1/2NNK2N b - - 0 1 legal: proof: d4 b5 a4 g5 axb5 e5 dxe5 f5 e4 fxe4 b4 a5 h4 gxh4 b6 Qg5 b5 Qf6 Ba3 Na6 bxa6 Qd8 Bb4 axb4 f4 Ke7 g4 Ke6 g5 c5 g6 h5 g7 d5 b7 e3 b8N h3 a7 h2 Nd7 h4 Nc3 h3 Qe2 b3 Ra3 d4 Nf6 b2 Nh5 b1Q+ Nd1 d3 f5+ Kd5 e6 Qb2 f6 Nh6 g8R Qc7 f7 Nf5 e7 Nh4 e8N Be7 Qg4 e2 f8N Rh7 Nd6 d2+ Kf2 Ba6 Ng3 Bb5 Nde4 Rh5 Ne6 Rf5+ Qf3 Rf4 Nd4 Rg4 Nb3 Rf4 Ke3 e1Q+ N1e2 Rg4 Rg1 h1Q Rg2 h2 Ndf2 d1Q c3 Qdb1 Nd1 Qed2+ Kf2 Qdf4 Ke1 Qf8 Nec1 Rf4 Ned2+ Qe4+ Qe2 Qb4 Qg4 Rd4 Nde4 Rc4 Rg1 Qhf3 Be2 h1B Rg2 Q3f5 Ra6 Qh5 Ra3 Rb8 a8B+ Rb7 Rf2 Bg2 Nh1 Bh3 Rg2 Bc6 Rg6 Ra7 Rg8 Ra6 Bb7 Ra4 Bc8 Bb5 Be6+
b2r3k/BB1q1QbN/1qp1q3/1r6/1B2r3/1nb4P/2B1RNbK/4NR1B b - - 0 1 legal: proof: b4 a5 g4 e5 f4 exf4 c4 d5 cxd5 h5 bxa5 hxg4 a4 b5 a6 Nd7 a5 Nb6 axb6 b4 b7 Be6 b8R Bd7 Rc8 Bxc8 Kf2 g5 Kg2 f5 d4 Kf7 e4 Kg7 d6 c6 d5 f3+ Kg3 f2 d7 b3 d6 b2 h3 f4+ Kh2 f3 e5 Ne7 a7 Nf5 e6 Rh4 e7 Nd4 e8B Bb7 Bg6 Nb3 Qd5 Kh8 Bc2 Bg7 Nc3 b1R Bg2 f1B Ba3 f2 Ne4 Qc7 d8B Qd7 Bf6 Rd8 Bb4 Ba8 Bd4 Rb2 Bf3 Bg2 Qf7 f1Q Nf2 Qe1 Ra2 Qee6 Bd5 Rb1 Nf3 Rb2 Rf1 g3+ Kg1 Re4 Ne1 g4 Bb6 Bh1 B6c5 g2 Kh2 Bb7 a8B g1B+ Kg3 Bg2 Ba7 Qde8 d7 Bc3 Nh1 Bgd4 Kh2 Bg7 Nf2 g3+ Kg1 Rb8 d8N Q6d7 Ne6 Rd8 Ng5 Qee6 Ba3 Nd4 Nh7 Rb5 Bb4 Nb3 Bb1 Bh1 Re2 g2 Kh2 Re5 Kg3 g1Q+ Bg2 Re4 Bc2 Rf8 Nfd3 Qb6 Kh2 Rd8 Bf3 Bc8 Bb7 Bg2 Ba6 Bb7 Nf2 Ba8 Bc8 Qh6 Bb7 Qhe6 Rg1 Bf1 Bh1 Bg2 Rf1
1bnR3R/n1Pq1q2/rn2Nn1N/R1Rp4/2r5/KQN1p3/2B1B1p1/1R5k b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 e4 b5 a4 f5 exf5 c5 d4 b4 a6 cxd4 Bf4 Bb7 Be5 Bc6 Bd6 Bb5 axb5 Rh6 b6 Rh8 Be5 Nc6 Bb8 Nxb8 Kd2 Kf7 Kc1 Kf6 Kb2 Ke5 f4+ Ke4 c4 d5 h4 e5 a7 g5 f6 b3 f7 d3 c5 g3 b7 g2 c6 d2 h5 g4 f5 g3 h6 Nf6 h7 Qd7 Rh2 Bd6 Rh6 Rc8 Nh3 g1Q h8R Qf2 f8R g2 Nc3+ Ke3 Ra2 e4 Be2 Qf1 Ng5 Kf2 Rh1 e3 Nf7 Be5 R1h7 Kg1 Nh6 Kh1 Ka3 b2 Qb3 d1N Rd8 Nf2 Re7 N2e4 Ra1 Qe6 Rc7 Nbd7 b8R Nd6 Rb1 Bg3 Rb5 Nb6 Rc5 Qd7 Ra5 Rab8 a8B Bh2 Bb7 Ra8 Bba6 Bf4 Bac4 Ra6 Bcd3 Bh2 Bc2 Bf4 Re1 b1N+ Kb4 Na3 Rb1 Rb8 Rcc8 Nab5 Rc7 Na7 Ka3 Nfe4 f6 Rc8 f7 Nf6 f8N Bg3 Rb7 Rc7 Ne6 Ndc8 Qc4 Bh2 Rb5 Qf5 Rc5 Qh5 Rb8 Qhf7 Qb3 Bf4 Qc4 Na4 Rcb5 Rb7 Rc5 Rb4 Rbb5 Bb8 c7 Nab6 Qa2 Rg4 Rb2 Rb4 Qb3 Rc4 Rb1+
Rq6/r4NnR/bk2Q2r/1pN1rp2/p1Rr3B/1B3K2/2qRP3/1R1rB3 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 h4 exf4 Nc3 gxh4 Nb1 c6 b4 Bd6 b5 cxb5 a3 Bb4 axb4 a5 Rh3 a4 Rh2 Bd7 Rh1 Bc8 Nc3 Nc6 Nb1 Na5 bxa5 Qc7 Na3 Qb6 Nb1 Qd8 Kf2 Kd7 g4 Kc7 d4 f5 a6 h5 a7 f3 d6+ Kb6 g5 b4 d5 h3 g6 b3 d7 b2 d6 h2 g7 h4 Nd2 b1Q Ne4 h3 Bd2 Ne7 g8R Qb2 Be1 Ng6 Nc5 Nf8 Rg4 Qc2 Qd5 Ne6 Rc4 Ng7 Qe6 Re8 Bg2 Qc7 d8R Qb8 Kg3 f2 Nf3 f1R Ng5 Rf4 Bd5 Rd4 Kf3 Re7 Nf7 Re8 Rg1 h1R Rg3 h2 Rh3 Rg1 Rh7 h1R Rc1 Rh6 d7+ Kc7 Rb1 b5 Rcb4 Ba6 Bb3 Rd6 Rd4 Kb6 Rd2 Rg4 Rc8 Rd4 Rc7 Re7 d8B Re8 Qd5 Rd7 Bdh4 Re5 Rc8 Qd6 Rc7 Rad8 Rc8 Qb8 a8R Ra7 Qe6+ R8d6 Nb7 Rg4 Rc4 Rge4 Rd5 Rd4 Nc5 Rd1 Qe8 Rdd7 Rd2 Rd4 Qe6+
1b3B2/qNN3nr/bN2nB1R/kr1n4/3q2RQ/3N2r1/2b1b1P1/1N1q2BK b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 Kf2 Kd7 d4 f5 e4 c5 e5 h5 d6 Kc6 e6 f3 d7 b4 d5+ Kb5 e7 h3 e8N b3 d6 f4 Qc2 h2 Ra6 h4 Nd2 b2 Nc4 b1R Ra1 h3 Qe2 Ra3 Qe6 Rh7 Ra2 Nc6 b8B Ba6 b7 Nd4 Re2 Nf6 Nb2 c4 Na4 c3 Bb2 c2 Qg4 c1Q Qh5+ Nd5 Ba1 Qd1 Nc3+ Ka5 Qh4 Rb5 Nb1 Ne6 Nc7 Qd4+ Kf1 f2 Ba7 Qe7 b8N Rg3 d8N Qf7 d7 Bd6 Nf3 Qe7 Rg1 h1N Re4 h2 Ne1 Be5 Nd3 Qg7 Ke2 f1B+ Ke1 f3 Rg4 Be2 Nb7+ Ka4 d8B f2+ Kd2 f1B Ke1 Bd1 Nd7 Bc2 Be7 Be2 Bf8 Qe7 Rf1 Qc5 Rf6 Qb6 Ne8 Bb8 Rh6 Qc7 Bac5 Qb6 Nc7 Qa7 Nd8 Ka5 Nb6 Rh3 Bb2 Ng3 Ba1 Nf5 Bb2 Qb4+ Kf2 h1Q Bf6 Nfg7 Bcd4 Qc1 Bdc5 Qcd2 Kg1 Rg3 Kh1 Qd1+ Bg1 Qd4 Nb7+
RB2k2q/2nP4/r1Q4n/N3B1r1/b1q1b1r1/rq6/3B1NNK/b2n1RBB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 Kg2 a5 h4 f5 e4 d5 c4 g3 b4 g4 b6 d3 b5 d2 h5 a4 b7 d4 h6 d3 b6 a3 e5 a2 c5 Ra3 h7 Bd7 e6 Ba4 c6 Na6 b8B Qd7 b7 Bg7 c7 Nh6 c8N Nc7 Rh5 f3+ Kh1 f2 Qc2 d1Q Ne7 f4 Bd2 g2+ Kh2 f3 Nh3 g1R Qc6 Qb3 Be2 f1Q Nc3 f2 Ncd5 Rg3 Re1 a1Q Bf3 Qe2 Rd1 f1B+ Nf2 Bg2 Ne3 Bc3 Bd5 Be4 Ba7 Rg1 b8B g3+ Kh3 g2 Kh2 Rg8 h8B Rg5 Be5 Re1 Bc5 g1R Ng2 Qab2 Ra1 Rg4 Ra2 Ra1 Rf5 Rg5 Qb7 Qf1 Nc6 Qfc1 Bb6 Bd4 Rf7 Qcc4 Na5 Bc3 Qc6 Bd4 Bb4 d2 Rf5 d1N Bd2 Bc3 Nh4 Qc1 Bf6 Bh1 Ng4 Bb5 Rf1 Ra4 Nb7 Qcb2 Bbd4 Rg3 Bg1 Ra5 Nf2 R3g4 Ra4 Ra3 Bd4 Ra8 Ra7 Ba4 Na5 Q2a2 Ra6 Ba1 Bf3 Qac2 Bg2 Qh7 Be5 Qh8 Bd5 Bg2 Ra7 Bh3 Bh1 Bg2 Ra6 Bf3 Ng2 Be4 Bg3 Ra7 Be5 Rb7 Ra7 Rb6 Ra8 Ra6 exd7+
1RK1kN2/Rr5n/2R5/1b2Q3/1B1nbR1q/qN2Pr1n/N3nR1B/3b2bn b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 Ke2 h5 Kd3 c5 Ke4 f5+ Ke5 h3 g4 h2 d4 h4 d6 b4 g5 f3 g6 f4 d5 c4 g7 b3 Qe1 h3 Ra2 c3 Qe2 f2 Qc4 f1B Ra7 c2 Qa4+ Bb5 Nf3 b2 Nfd2 f3 Qa1 f2 Rf1 h1N Nb3 h2 Bd2 c1Q Bb4 Nf6 g8R Bg4 Nc3 b1B Na2 Bd1 Ke6 Be4 Qe5 Nh7 Rg6 Nc6 b8B Qh4 b7 Qa3 Bc7 Rc8 b8R Be7 Rg4 Rf8 Rf4 Rf7 Rb6 Rb8 Rba6 Rb7 d7+ Kf8 d8N Ke8 Bb8 Bd6 Rb6 Bc7 d6 Rf5 Rg4 Rf3 Rf4 Ne7 Rc6 Nf5 Rg1 f1N Rg2 Nf1g3 Rf2 Kf8 Kd7 Ne2 Ne6+ Kf7 Rg4 Nfd4 Kc8 Ke8 d7+ Kf7 Rfg2 Nf2 d8R h1N Nf8 Nh3 Rf2 Bd6 Qc5 Bh2 Qe5 Bg1 Bc7 Rf6 Rgf4 Rf5 Kd7 Rf6 Rb8 Rf5 Kc8 Rf6 Qd5+ Ke8 Qe5+ Re6 Rf6 Nf5 Qd5 Nfd4 Bh2 Re5 Qc5 Rf5 Qd5 Rf3 Rf4 Bc4 Qd6 Bb5 Qe5+
1bB1r3/n1R4B/2q1Q2B/7n/1qqP1BNn/1R2Nbr1/2R2q2/K2Bq1kn b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Ke7 d4 Kf6 Kd2 Kg5 Kc2 h5 Kb2 c5 g4 f5 b6 h3 b7 Kh4 g5 Kg3 d6 Kf2 e5 b3 e6 h2 e7 f3 e8B f4 d7 c4 g6 h4 g7 h3 Bd2 c3+ Kc1 b2+ Kc2 Ne7 g8B Qc7 d8R Ra3 Bd3 Qc6 Ra2 Ng6 Be4 Bd6 Ra1 Bg4 Be6 Nh4 B8d7 Re8 Rc8 Bc7 Kd3 c2+ Nc3 b1Q Bh7 Qb4 Bb3 c1Q Ra2 Be5 Qc2 Qe1 Rc7 Kf1 Qb1 f2 Kc2 f3 Kb2 Kg2 Be6 f1Q Bc8 f2 Ka1 Qfc4 Bh6 Bf3 Nd5 Bd6 Bbc2 f1Q Bd1+ Qff2 Qe4 Rb3 Rc2 Bf4 Ne2 Be5 Rf1 h1N Nec3 h2 Nf6 Ng3 Ng4 h1N Nd5 Bf4 Qe6 Nh5 Ne5 Kh2 Ne3 Rd3 Rg1 Rc3 Rgg7 Bg3 N5g4+ Kg1 Rgd7 Q6c5 Nf5 Nc6 Rd6 Qbb6 Rcd7 Be4 b8B Na7 Rd5 Qcc6 Rb5 Bg2 Rb1 Qbb4 Rb3 Be5 Rf7 Rg3 Nfe3 Bf3 Bc7 Bh8 Bcf4 Be5 Rg7 Bb8 Rc7
7N/1N1q1b1n/1bP4Q/4kb1B/1Bbr1B2/2K1nr1R/3RR2n/3qbBnB b - - 0 1 legal: proof: b4 a5 g4 e5 a4 h5 f4 hxg4 d4 exf4 bxa5 b5 axb5 c5 Qd2 cxd4 Qd3 Rh4 Qd1 Rh8 Kd2 Ke7 e4 Ke6 h4 d5 c4 f5 h5 g5 c5 g3 a6 f3 b6 f4 e5 d3 a7 g2 h6 g4 c6 d4 h7 g3 b7 f2 Ne2 g1N Ra3 g2 Ra2 f3 Rh3 Nh6 Na3 Nd7 b8R Nf6 Rbb2 Nhg4 Nb5 Ne3 Nd6 Qd7 Nb7 Bc5 Rc2 Rf8 h8B Bb6 Nf4+ Kf5 e6 Ke5 Be2 f1B e7 f2 Bf3 Be2 e8B f1N+ Ke1 Ba5+ Rd2 Nh2 Beh5 Rb8 a8B Bc3 Nc5 Rb4 Bb7 Bf1 Bg7 Ra4 Bh6 Nh7 Ba6 Ba5 Nb7 Rb4 Re2 d2+ Kf2 d3 Ba3 Re4 Bb4 Rd4 Qc1 d1B Ke1 Bb3 Kd2 Bf7 Kc3 d2 Bg5 d1Q Red2 B1c4 Ng6+ Kf5 Nh8 Ke5 Re2 Qd8 Re1 Bf5 Ree2 Qd7 Bd5 Ngf3 Bb5 g1B Rad2 Bf2 Be4 Ng1 Bh1 Bb6 Qb1 Bg4 Qg6 Be1 Qh6 Bf5 Rf2 Bcd5 Bf1 Bc4 Re2 Rg8 Bge7 Rg3 Bg5 Rf3 Bf4+
KB2N1br/b1bBP3/4r3/r1kr1BB1/1Nn2qNr/R1Qn4/1Rb5/3B2q1 b - - 0 1 legal: proof: b4 a5 g4 e5 a4 h5 f4 hxg4 d4 exf4 bxa5 b5 axb5 c5 Qd2 cxd4 Qd3 Rh4 Qd1 Rh8 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 g5 Kc4 d3 h4 f3 e4 f2 h5 g3 c3 g4 a6 f4 h6 f3 a7 d2 b6 g2 Kb5 g3 b7 Qg5+ Kb6 Rh7 c4 Nf6 Ra6 Ne8 Na3 Nc6 Rh2 Nb4 Nh3 g1B Qb3 d1R Bd3 f1R+ Nf2 g2 Nc2 Rfe1 Ra3 Bg7 Qb2 Be5 Qc3 Rb8 a8B Re3 Ng4 f2 Ka7 f1R Ra4 Rf5 c5+ Kc6 Bd2 d5 Ra3 Bc7 e5 d4 e6 Nd6 e7 Be6 Bb5+ Kd5 Bd7 d3 Bc1 d2 c6 Ba5 c7 Nc4 c8B Bc7 Ba4 Bf2 Bcd7 g1Q Rg2 Rbf8 b8B+ Kd6 Be4 Ra5+ Kb7 Bf7 Bg6 Re6 Bf5 Ba7 Ka8 Kc5 Re2 Nc6 Nb4 Ne5 Nf6 Q5e3 Ne8 Rg8 Bb3 Rg4 Rg2 Bg8 Bba4 Rh4 Rh2 Re1 Bd1 Nd3 Rf2 Qeg5 Rh2 R1e5 Rf2 Rf7 h7 Rd5 h8N Rfh7 Nf7 Rh8 Ne5 Q5g3 Ng4 Qe5 Bf3 d1B Bg5 Qf4 Rb2 Bc2 Bd1
2R5/q2N4/1NK1b2q/k3Nq2/1N1Pn1nq/B4qqB/BqQNRq1q/5r2 b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 h3 b5 Qa4 f5 Qd1 g5 Bb2 f4 Bc1 Bh6 h4 Ra6 Na3 Rf6 Nb1 Rf5 gxf5 g4 Bb2 Na6 Bc1 Bg5 hxg5 Nb8 Kf2 Kd7 d4 Kc6 a4 Kb6 e4 h5 f6 c5 e5 b3 g6 b2 f7 g3+ Ke1 h4 Kd2 h3 Kc3 h2 f8N f2 e6 g2 g7 b4+ Kc2 f3 e7 b3+ Kc3 Na6 e8N Nh6 g8B Ka5 Nh7 Qh4 Ng5 Ng4 Qe2 Be6 Na3 b1Q Qd1 b2 Nf6 Qbh7 Be3 b1Q Qe2 Qa7 Nf7 Qf5 Rc1 Rh6 Nd7 Rf6 Nc2 Qg3 Nh3 g1Q Nhg5 Q1g2 Rg1 h1Q Ne4 Qhh4 Nfe5 Q2h2 Bh3 f1Q Nd2 f2 Rg2 Qd1 Qd3 f1Q Nb4 Qdf3 Re2 Q1f2 Qc2 Rf7 Kb2 c3+ Ka3 c4 Bh6 Bd5 Bf8 Nc5 Qe4 c2+ Ned3 c3 N3e5 Qg6 Bg7 Qe1 Nbc6+ Ka6 Kb4 Qd3 a5 Qc7 Nb1 Rf1 Bf8 Qdf3 Be6 Qgh6 Nd2 Qef2 Bd6 Ba2 Bb3 Qb7+ Kc4 Qa8 Kd5 Qaf8 Be7 Q8f5 Bd6 Kb5 Bc4+ Ka4 a6 Bb3 a7 Ba2 Rd1 c1Q a8N Qa3 Rc1 c2 Bb3+ Kb5 Nab6 Qa7 Bf8 Nb7 Bc5 Nd6 Ba3 Ka6 Nb4+ Ka5 Rd1 c1Q Rde1 Qcc7 Rc1 Qcc3 Rc2 Qa1 Rc8 Qb2 Bc4 Bb3 Kc5 Ba2 Qc2 Ne4+ Kd5 Qhh7 Kc6 Qh8 Ba6 Be6 Bc4 Q8h6 Ba2
K1BBrNkb/2r1r3/1BQr1bb1/b2R4/2B1r2b/rP4n1/1R3BR1/3N1b2 b - - 0 1 legal: proof: d4 f5 a4 b5 f4 bxa4 g4 c5 e4 fxe4 f5 cxd4 g5 Nc6 h3 Qb6 h4 Nd8 Bd3 Nf7 Bf1 Qf6 gxf6 g5 Rh2 g4 Rh1 Ng5 hxg5 Ba6 Rh5 Bb7 Rh1 Bc8 Kd2 Kf7 c4 d5 c5 a5 c6 h5 b3 e5 c7 d3 Kc3 h4 Bb2 d2 Ra3 h3 Be2 e3 Bf3 g3 Qc2 d1B Bg4 h2 Ra1 d4+ Kc4 e2 Kb5 e1B Kb6 a3 Ra2 a4 Bc3 d3 Bf3 d2 Bb4 g2 Qc3 e4 Rc2 a2 Ba3 a1B Rb2 e3 Bc6 e2 Bb5 Be7 Qc6 Nh6 g6+ Kg8 g7 Bc2 Bc5 d1R Nh3 g1R Bf2 a3 Nf4 a2 Nc3 Ra3 Ne6 Rd6 Nf8 Ba6 Ka7 Rg4 c8B Re4 Nd1 Ba5 Ka8 e1R Rf1 h1R Bc4+ Nf7 Rg1 R1h7 Rg5 Bed8 Rg2 Re7 Bb6 R1e4 Rd2 Bb1 Rd5 Ng5 Bf2 Rf4 Bb6 Ne4 Bf2 Ng3 Bb6 Kf7 g8R Rfe4 Rg4 Rg7 Bf2 Kg8 Bb6 Nh5 Rgg2 Ng3 Bf2 Rc7 Bb6 Rge7 f7+ Kg7 Bf2 Rg8 f6+ Kh8 Nd7 Rge8 f8B Kg8 Bh6 Bc2 Bhe3 Bd3 Nf8 Bf1 Be2 Bd3 Bb6 Bb1 Rc2 Bb2 Bc4 a1B f7+ Kh8 Nd7 Bf6 f8B Kg8 Bh6 Bh4 Nf8 Bh8 Bg5 Rf4 Rcd2 Bg6 Rb2 Rfe4 Nc3 Rh7 Nd1 Bdf6 Bge3 Rce7 Bd8 Rc7 Bc5 Rhe7 Bb6
7N/K1R1r2n/3q1pQq/N1n1k1b1/N5B1/rr2NR1P/2Bb2Nr/B4rq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 d4 exf4 d5 h3 d6 h2 Nd2 cxd6 Nb1 d5 Ra4 d4 Ra2 Bb7 Ra1 Bc8 e3 h5 Be2 h4 Kd2 h3 Bd3 Bb7 Ne2 Bd5 Rf1 h1R Rf2 h2 Nbc3 Be6 Nb1 Bh3 gxh3 Bd6 Ra2 Be7 Ra1 Bf8 c4 Ke7 b4 Ke6 b6 a5 e4 d5 b7 a4 b5 f6 e5 f3 b6 a3 c5 a2 c6 Bc5 c7 Be7 c8B+ Nd7 b8N Re1 b7 h1R Bb2 Ra3 Na6 Nh6 b8N Bc5 Bc2 d3 Nbc3 d4 Nb4 Rh2 Qb1 Nf7 Nbd5 Qf8 Nc6 Qh6+ Ne3 Ng5 Na4 Nh7 Na5 Ba7 Rf1 f2 Bc3 Re8 Bb2 Re7 Nf4+ Kf7 Nfg2 Nc5 e6+ Kg6 Rh1 f1R Bd7 Rf3 Rf1 Bb8 Rf2 Bf4 Rf1 Rg3 Rf3 Bg5 Bc3 Reh1 Qg1 Rb3 Rc1 a1B Bc8 Bb2 Bd7 Ba3 Ba1 Bb2 Qf2 Rf1 Qg1 Rg7 e7 Ba3 e8N Bb4+ Bc3 Re7 Bg4 Kf7 Nd6+ Kg6 Nf5 Ra3 Nh4+ Kf7 Rf5 Ke6 Rf3+ Kd6 Ng6 Rb3 Nh8 Ke5 Re1 Ra3 Kd1 d2 Ke2 Rb3 Ba1 Bc3 Rb1 Ra3 Rb7 Rb3 Rc7 Ra3 Nd1 Bb4 Rf4 Rgb3 Ne3 Bc3 Rf2 d3+ Kf3 Rfb1 Rf1 d1Q+ Kf2 Qc1 Kf3 d2 Ke2 Na6 Kd3 d1Q+ Kc4 Qd6 Rf3 Nc5 Rf2 Qb2 Rf3 Bb4 Kb5 Rf1 Bb1 Qbd4 Bc2 Qd8 Kb6 Qd6+ Ka7 Bc3 Qf2 Qd1 Qh4 Qe1 Qh5 Qf2 Nb2 Bd2 Qg6 Qg1 Na4+
2B1n3/2nR1p2/3bR1Rq/Nr1nq3/1R2NkPq/1qr1B3/R1b1K1n1/5BQ1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Ke7 d4 Kd6 g4 c5 b6 h5 b7 b3 Rh2 h3 Bg2 b2 Qb3 f3 Qc2 c4 Bg5 c3 Be3 f2+ Ke2 f1N Ra3 h4 Qd1 c2 Ra1 c1Q Ra2 Qdc7 Rh1 h2 Nh3 Q1c3 Nf2 h3 Na3 Na6 b8R b1N Rb4 Qb3 Rg1 h1Q e5+ Kd7 d6 Ke6 d7 h2 d8R Bd6 Qc1 Nf6 Nc4 Rh3 Rg8 Ne8 Na5 Rb8 Ne4 Rb5 Rg6+ Kd5 Qd1 Bf5 e6 Qc5 e7 Nac7 Bd2 Ne3 Re1 Rg3 Bf1 Ng2 Qc1 Rc3 Be3 Qg1 Qd1 h1Q Qc1 Qh4 Qd1 Ng7 e8B Qgh2 Bd7 Nge8 Bc8 Qe5 Ng3 Bc2 Ne4 Na3 Qc1 Nc4 Qd1 Nb6 Qb1 Nd7 Qd1 Qef6 Qa1 Ke6 d5+ Ke5 Qd1 Nb6 Qa1 Be7 d6 Nbd5 d7 Bd6 d8R Qe6 Rd7 Qb6 Bc5 Kf4 Qd1 Qee7 Qd4 Qeg5 Qg1 Qb8 Bd4 Qgh6 Be3+ Ke5 Nd2 Na8 Bb6 Bf8 Ba7 Qd6 Bc5 Nac7 Bb6 Nde3 Kf3 Qd4 Ba7 Bd6 Re2 Qh3+ Kf2 Kf4 Re1 Ned5+ Re3 Qf8 Ke2 Qfh6 Ree6 Q3h4 Ne4 Qe5 Be3+
2kQ4/1NP1b1Bn/R4Nn1/r4bbB/B3Nbq1/2q2Rp1/q1q3r1/N4K1N b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 h5 exf5 gxf4 g5 Nc6 Qe2 Nb8 Qg4 hxg4 h4 e5 c4 a5 b4 d5 c5 Kd7 f6 f3 b6 d3 h5 d4 b5 g3 h6 a4 b7 a3 g6 e4 b6 e3 g7 e2 h7 a2 f7 Be7 f8Q Qe8 c6+ Kd8 c7+ Kd7 Nd2 Qf7 Ne4 Ra5 Nh3 Nc6 Bb2 Nf6 g8B Ne5 Nhf2 Ng6 Rh2 Qd5 Nh1 Qe6 Bf7 f2+ Kd2 e1B+ Kd1 d2 Ke2 Ne5 Bh5 Ng6 Rh4 Qc6 Rf4 Qc3 Bg2 d1Q+ Kf1 d3 Rf3 d2 b8N+ Ke6 b7 Qdc2 Nd7 d1Q b8N Qdd2 Rb1 a1B Qd8 Qd5 Rc1 Bd2 Nc6 Bf4 Nb4 Qa2 Rb1 Rf8 h8N Nh7 Nf7 Re8 Ndf6 Rh8 Bc1 Bb2 Bd2 Bc1 Nfd6 Bg5 Be1 Bcf4 Nb7 Re8 Ra1 Rf8 Ng8 Rff5 Bd2 Rfd5 Be3 Rd2 Bd4 Bd7 Bg7 Bc8 Qf8 Kd7 Qf6 Ke8 Bh3 Bf5 B3g4 Kd7 Qd6+ Kc8 Ngf6 Nh8 Be8 Re2 Ba4 Ng6 Bh5 Qd5 Re3 Q2b2 Bc6 Rc5 Ra6 Ra5 Ba4 Qda2 Nc2 Qbb3 Na1 Qbc2 Kg2 Rd2 Kf3 f1Q+ Nhf2 Qfc1 Kg2 Re2 Qd5 Q1d2 Kf1 Qdd3 Nh1 Rg2+ Re2 Qe3 Rf2 Qf3 Qd1 Qg4 Rf3 Be5 Qd6 Bef4 Qd8+
N1N3b1/BR3Q2/2b1NR1b/3bK3/5pBR/2Nr1rP1/2N1krrr/q2b1n2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g3 b5 axb5 exf4 Be3 fxg3 Bg5 Be7 Bc1 Bf8 Kd2 g5 Ra2 g4 Ra5 g2 Nc3 g3 Nf3 g1R Ra2 g2 Ke1 Nc6 Nb1 Nce7 Ra4 Nf5 Ra1 Ng3 hxg3 Qb6 Bd2 Qf6 Bc1 Qd8 Kd2 Ke7 Kd3 Kf6 Ke4 h5 b4 d5+ Kf4 a5 c4 a4 e4 a3 b6 d3 b5 d2 c5 h4 b7 d4 b8N a2 b6 h3 c6 h2 b7 d3 c7 Ne7 Qb3 d1B Nc3 d2 Bb5 Rf1 Qb1 g1R Nc6 Ba4 b8N d1B Na7 Qd4 Nbc6 Rg2 Nb4 Rff2 Bd7 Bc6 Nc2 Nf5 Nab5 Ra3 Qb3 Ne3 Rb1 a1R Bg4 Nf1 Be3 Be6 c8N Kg6 Qd5 f5 Nc7 Bg8 Na8 Qa7 Rb5 Bh6+ Ke5 f4 Nfd4 Kg5 Rb7 Rb1 Qf7 Rbb3 Ndb5 Qa4 Nbc7 Qa6 Ba7 Qa4 Ne2 Rbf3 Nc3 Qa5+ Kd6 Rb3 e5 Qa1 e6 Bd5 e7 Rd3 Rg1 h1B e8R Ra3 Rf8 Rdf3 N3b5 Rad3 Nc3 Rh7 Bd7 Rh8 Ne6+ Kg4 Ke5 Bg7+ Qf6 Rhh2 Rf7 Bh6 Qg6+ Bg5 Rf6 Bc6 Qe8 Bh6 Qf7 Rh5+ Rf5 Rfe3+ Kf6 Kf3 Ng7 Rh3 Kg6 Rh4 Rf6 Rh3 Kf5 Rh4 Ne4 Ke2 Ke6 Nd2 Rf1 Rg1 Kf5 Bf3 Be6 Rgg2 Rh1 Nf1 Nc3+ Kd2 Bd7 Bfd5 Rh2 Ref3 Ke5 Rg4 Rh5 Rh4 Bg4 Rhh2 Rh4 Qa2 Ne4+ Ke2 Ne6 Qa1+ Nc3+
1n3qB1/2r1B2q/2Nq2Qn/1Rpk3B/6P1/KR3bNn/Rr2q2B/Bq3q2 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qf5 f3 Qf6 Bd6 g4 Bg3+ hxg3 g5 Qf4 gxf4 Kd1 Kd7 Kc2 Ke6 e4 a5 d4 c5 b4 f5 Kb2 h5 d5+ Kd6 b6 c3+ Ka3 a4 g5 f2 b7 h4 g6 h3 b5 h2 b6 c2 g7 f3 Nd2 f4 Ne2 Bg4 Nd4 Rh7 Nc6 Nh6 Bb2 c1N Be2 f1Q Ra2 f2 Ba1 f3 Bd1 Qc4 Nf1 Qe2 Rg1 h1Q e5+ Kd7 d6 Ke6 d7 Nd3 Rg2 Kd5 e6 Nf4 e7 Ra7 e8Q Nh3 Qg6 Qf8 d8B Qd6 Nh2 f1Q Be7 f2 Rb2 Bf3 Rb3 Rh8 Rb5 Rc8 Rb3 Rc7 Rb5 Nd7 b8B Ra5 Rb3 Rb5 b7 Rb4 g4 Rb5 Bc2 Qb1 Bd3 f1Q Bf5 Qff2 Nf1 Rb6 Ng3 Qff1 Ba7 Nb8 Bd7 Rb5 Be8 Qf5 Bb6 Qf8 Ba5 Rb6 Bd2 Qb1 Be3 Qhf1 Bg1 Qbd3 Bh2 Qde4 Qf6 Qh7 Bh5 Qfb1 Qg6 Rb4 Re3 Rb2 Rb3 Qe3 Rc3 Na6 b8R Rb4 Rb5 Nb8 Rc2 Qf1 Bb2 Qee2 Ka2 a3 Rd3+ Rd4 Kb3 a2 Bc3 a1Q Ra2 Qae1 Ka3 Qb1 Re3 Rc4 Ba1 Rc2 Reb3 Rb2 g8B+
3k3b/Bqq2b1R/bpPnrN2/b3Q2b/1BRb2B1/4r3/K3NN2/BB4r1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 h5 f4 hxg4 Na3 e5 Nb1 e4 Bb5 Nc6 Bf1 Ne5 fxe5 Qf6 Bd2 Qg5 Bc1 Qd8 Kd2 g5 a4 d5 c4 g3 Kc2 g2 Kb3 g4 h4 e3 c5 d3 a5 g3 f6 d4 c6 e2 e6 e1B h5 d2 a6 d3 h6 Bg7 h7 Qc7 e7 Nh6 a7 Nf7 Qe2 d1B+ Ka2 d2 Qe5 Nd6 Bd3 Bh5 Nh3 g1B Nf2 d1B Be3 g2 Nc3 Bg6 Rh6 Bdh5 Bb1 Rf8 Bd4 Bh8 Ne2 Rb8 a8B b3+ Ka3 b2 Ba7 b6 Bb7 Ba5 Ka2 Rg8 Ba6 Bf7+ Bc4 Rg3 Be6 Rb3 Bef5 Ba6 Bg4 Bg7 h8B Re3+ Qd5 Rd8 Rh7 Re6 Qe5 Rd7 Nd1 Bd4 Nf2 g1Q Kb3 Qb7 Ra4 Qg3+ Ka2 Rd8 Rc4 Rd7 Bd3 b1R Bdf5 Rb3 Bb1 Re3 Ne4 Bc5 Qd5 Nb5 Rc3 Bg8 Nf2 Qgc7 Rc4 Rd8 Qe4 Rd1 Qd4 Rg1 Qc3 Kf7 e8N Nd6 Qd4 Kf8 f7 Ke7 Qe4 Kd8 f8B Bgf7 Qf4 Nb5 Qg3 Bb2 Bc3 Ba1 Bfg7 Nd6 Bb4 Bf6 Bh8 Bg5 Bd4 Bf6 Ba1 Bcd4 Qe5 Bh8 Nf6
N1rQb1KN/b4r2/nPRRrN1B/Rr1r4/1k3p2/1b3r1r/1NN3n1/1B6 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 g4 Bf1 Qg5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Kc4 h5 e4 f5 b4 a5 b6 h4 c3 g2 g6 h3 b7 f4 b5 a4 g7 d3 Nf3 g1R Kd4 h2 c4 a3 Ne5 d2 Ng6 a2 Bb2 g3 Bd3 g2 Nc3 Ra3 Bb1 Na6 b8N Nf6 g8N Nd5 Na4 Ne3 Nf6 Re1 Nc6 g1R Nb4 Ng2 Nc2 Rf3 Bc3 Rh7 Nb2 Rf7 Nh8 Rgf1 Rg1 h1R b6 Rhh3 e5+ Kc6 c5 Kb5 Kd5 Bd6 c6 Bb8 c7 Ba7 Qc1 d1B e6 d6 e7 Bd7 e8N Re6 c8R Rfe1 Qd2 R1e5+ Kd4 d5 Rc6 Reh5 Bb4 Rg5 Bf8 Rf5 Ne3 Bb3 Bh6 Rfh5 Qd1 Kb4 Nc7 Be8 Na8 Rf5 Qd3 Rg5 Rd1 Rg8 Qg6 Rgf8 Qg5 Rg8 Kd3 d4 Qd5 Rg5 Qd8 Rb5 Rd2 Rd6 Ke4 d3 Rd1 d2 Nc2+ Ka5 Rf1 d1R Re1 R1d5 Rd1 Rdc5 Rd5 Re6+ Kf5 Rcc3 Kg6 Rcd3 Rd7 Rdd5 Ne1 Kb4 Rdd6 Rf8+ Kg7 Rf7+ Kg8 Ree7 Bc2 Re6 Rc1 a1R Bb1 Raa5 R1c2 Rbc5 Re2 Rab5 Re3 Ba4 Ra3 Bb3 Ra2 Rc4 Ra5 Rce4 Rc3 Rc4 Rc1 Rcc7 Rcc6 Rc8 Nc2+
1B2KnBN/3N3b/k1BR2r1/n1B3bp/3nn3/n2Qq2P/RbB5/3Rbq2 b - - 0 1 legal: proof: e4 c5 g4 d5 a4 dxe4 b4 a5 b5 f5 Qe2 Ra6 bxa6 fxg4 Qf3 b5 Qd1 c4 Bxc4 b4 Bf1 Qd7 Ke2 Qxa4 Ke1 Qd7 Ra4 Qd3 Ra1 Qd8 Ke2 Kd7 Ke3 Kc7 Kf4 Kb6 Ke5 h5 c4 g5 d4 a4 f4 g3 h3 g2 a7 g4 a8B g3 d5 e3 d6 e2 d7 e1Q+ Kf5 e5 Ke6 a3 Kf7 a2 f5 b3 f6 b2 Qc2 e4 Nd2 b1N Qb3+ Ka6 Be2 e3 Bd3 e2 Ndf3 Qf1 Bf4 e1B Ne5 Bh6 Bc2 Na3 c5 Bg5 c6 Qb6 d8R Qe3 c7 Bf5 Ke8 Nd7 f7 Bh7 Bc6 Nf8 Ne2 g1N Rd6 g2 Qb1 Ne7 Nd7 Nf3 Bh2 g1N Nf4 Nd2 Ng6 Rg8 Nh8 Ne2 c8B+ Ka5 Qb3 Rg6 Qd3 Ne4 Ba6 Nd4 Bc4 Qg3 Rd1 a1B Rg1 Bb2 Rg2 Qe3 B4d5 Nef5 Bg3 Nb3 Rh2 Ne6 f8B Nfd4 Be7 Nf8 Bg8 Ndb5 Re6 Ka6 Bb8 Na5 Bc5 Qee2 Rd6 Qe3 Qc3 Nd4 Rhd2 Qc4 Qd3 Qb5 Ra1 Qc4 Ra2 Qb5 Rd1 Qc4 Qc3 Qf1 Qd3+
4n1R1/n5rq/1PBp2Bq/rR1nBN1r/B3Qr2/1K3N1k/n4B2/bR3r2 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 Ke7 e4 Ke6 b4 a5 c4 f5 Kc2 h5 g5 d6 e5 d3+ Kb2 a4 c5 a3+ Kb3 d2 c6 a2 b6 f4 b7 Kf5 c7 f3 c8B+ Qd7 b5 Kg4 g6 h4 g7 h3 b6 h2 e6 Nc6 b8B Rh5 e7 Raa5 e8R Nf6 g8B Bg7 Bd3 Na7 Qe1 d1N Bd5 f2 Bb2 f1N Nc3 Nfe3 Ne4 Nc3 Rb1 a1R Nf3 g1R Bc6 g2 Ng3 Rf1 Bg6 g1R Rg8 R1a4 Nf5 Rf4 Bc7 Kh3 Bd8 Ned5 Qe4 Na2 Be5 Ne8 Bh4 Rg2 Rg1 h1Q Bf2 Bh8 Ba4 Qh7 Bcd7 Bg7 Bdc6 Bf6 Bf7 Rg7 Rg5 Qh2 Bg6 Qh6 Bc3 Qh7 Bb4 Ba1 Bc3 Qg3 Be5 Qh4 Rg1 Qg5 Rg2 Qgh6 Rg1 Nc8 Rg5 Na7 Bb2 Ndc7 Ne7 Ra6 Rb5 Nd5 Nf5 Ra5 Be5
Q1N2Rr1/2N1Bp1R/2Bq1N2/1rqP1rbq/K7/1n1R2R1/1qR1k1r1/3nr3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 d4 Kd7 Kd2 Kd6 Kc2 Kd5 b4 Ke4 b6 a5 d5 c5 b7 h5 b5 a4 b6 c3 g5 a3 Kb3 a2 e3 h4 g6 h3 g7 h2 Nh3 g1Q Qc2+ Kf3 e4 g2 e5 Rh5 e6 Nf6 g8R Ne4 e7 c4+ Kb4 Nf2 Ba3 Na6+ Ka4 Qd6 e8N Rf5 b8R Be7 b7 Bg5 Nf4 Nd1 Nc7 Qgc5 Nh5 g1R Nf6 Rg2 Nd2+ Kf2 Qb2 c2 Rc1 a1R Rbf8 c3 b8R Rb1 Qb7 Rb5 Nde4+ Kf3 Rbc8 Rb8 Ra1 c1R Qa8 c2 Rg7 Ke3 Rh7 Rcb1 Rg1 h1Q Ra2 c1Q Rd2 Qh5 Rd3+ Kf4 Be2 Qb2 Bb4 Nf2 Ba3 Re1 Bg4 Nd1 Bh3 Re5 Bd7 Rf5 Bc6 Qbd4+ Bb4 Qb2 Rd2 Ke3 Rd3+ Ke2 Ba3 Rh2 Rgg3 Rg2 Ng8 Nb4 Ne7 Nc2 Nf6 Na1 Rcd8 Kf1 Nc8 Nb3 Rde8 Kf2 Re4 Kf1 Rc4 Ke2 Rc2+ Bd2 Qa5 Qd7 Nb6 Qcc3 Be7 Qc5 Rfh8 Qdd6 Qa8 Rf8 Nc8 Re8 Rcc3 Bg5 Rc1 Rg8 Rcc3 Rg6 Rf8 Rg8 Rc2+
n3nRB1/7p/n1N2BP1/3rRQKB/k2bN3/1n2r1b1/bNN1nNb1/2r5 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 g4 Bf1 Qg5 hxg5 fxg3 Kd2 a5 c4 f5 e4 d5 b4 Kd7 c5 a4 e5 d3 Ke3 f4+ Kd4 f3 Ke3 f2 Kf4 d4 b6 Kc6 g6 Kb5 e6 g2 b7 a3 e7 g3 e8N a2 c6 Nf6 c7 Bd6+ Kg5 Ra3 Nh3 g1N Qc2 g2 Be2 f1B Bb2 Bg3 Bh5 d2 Nf2 d1R Nd2 d3 Nc4 d2 Qf5+ Ka4 b5 Ne2 b6 g1B Ned6 Bg2 Nde4 Ne8 Bf6 Be6 c8B Na6 b8N Rc1 b7 d1N Nc6 Ne3 b8N Nd5 Nd4 Re3 Nc2 Ndc7 Nc6 Na8 Rh2 Bf7 Be6 Rf8 Rb1 a1N Rb5 Nb3 Re5 Bg8 Bd5 Rf7 Rh4 Rd7 Rf4 Rd6 Bf7 Rd5 Nb2+ Kb5 Re7 Rd3 Re5 Na5 Qd7 Rc5 Nh3 Bd4 Bh8 Re3 Bd5 Be6 Rf8 Bg8 Qf5 Bf7 Nd3 Ka4 Nhf2 Rb5 Be6 Rc5 Bf6 Bg8 Bd7 Ba2 Be6 Rd5 Bg8 Nb3 Nb2+
n1Bb4/n1kRRNb1/Q1b5/4RKb1/4Pp2/2R1qnN1/bB1B4/1b1Rbn2 b - - 0 1 illegal: No possible last move, all moves rejected
b3B3/K3B1r1/B2Bpb2/k3p1P1/4N1R1/r1Qb1N2/Rn1nBn1n/n2qN3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 e4 f6 e5 fxe5 a4 b5 axb5 axb4 g6 d5 Ke2 Kd7 Kd3 Kc7 g4 Kb6 f4 h5 c4 b3 g7 b2 g5 e6 c5+ Kc7 f5 h4 f6 h3 f7 h2 c6 Kb6 c7 Rh7 Qe1 Nf6 g8B Ba6 c8B Bg7 f8N Ng4 Ng6 Bf6 Bf7 Nc6 Qc3 Na5 Be8 Rg7 Nh4 Nb3 Ra2 Na1 Nd2 b1N Ngf3 Qd7 Ba3 Qd6 Rg1 h1B Ng2 Nh2 Nge1 Raa7 Nh4 Qd7 Ke2 d3+ Ke3 Bf3 Be2 Ra8 Rg4 d4+ Kf2 Bd5 Ne4 d2 Nhf3 d3 Ke3 Ra7 Be7 Ba8 Nd6 Qd8 Bb7 d1N+ Ke4 d2 Kd3 Nc2 Kc4 Nf2 Ne4 d1N Bc8 Na1 Bb7 Kc7 Kc5 Nb2 Bc8 Qd1 b6+ Kb8 b7 Nd2 Kb6 Bd3 Bcd7 Ra3 Bb5 Nab3 Ba6 Na1 Kc6 Ka7 Kc7 Ra4 Kc8 Kb6 b8B Ra3 Bbd6 Qc2 Kb8 Qd1 Qc6+ Ka5 Ka7 Rh7 Qc1 Rg7 Qc3#
4r1qb/p1NrrB1p/2Nn3R/1N1K1n1B/Pb4b1/1B2B2k/5rr1/4R1BQ b - - 0 1 legal: proof: f4 d5 h4 c5 c4 g5 cxd5 gxh4 b4 e5 Kf2 exf4 bxc5 b6 Ke1 bxc5 Kf2 Kd7 Kf3 f5 d4 c4 g4 c3 a4 c2 e4 h3 d6 Ke6 d5+ Ke5 g5 h2 g6 Nf6 d7 Nc6 d6 Ne7 g7 Ne8 Nh3 Rg8 Be3 c1B Ng5 Bb2 Bc4 Bd4 Re1 h1R Bf7 Rg1 Bh5 Rg2 Na3 Rb8 Rc1 Rb7 Ne6 Kf6 Nc7 Kg5 e5 Kh4 e6 Kh3 Nab5 Rh8 g8B Bc3 Rf1 Bb4 Bg1 Bg7 Bh2 Bf6 Bgf7 Rf8 Rf2 Bh8 Qh1 Rfg8 Re1 R8g7 Ke2 f3+ Kd3 f4 Kd4 Nf5+ Kd5 Rb8 Rfe2 f2 e7 f1R Re6 f3 Rh6 f2 Be6 Rfg1 Bef7 f1R Bd1+ Nh4 Bb3 Re2 Bh5 Rff2 Bf7 R1g2 Bh5 Ba6 Bf7 Qc8 d8N Re6 d7 Nd6 e8B Re7 Bh5 Nhf5 Bef7 Bb7+ Nc6 Qg8 d8B Bc8 Na8 Bd7 Bb6 Rbe8 Nac7 Bc8 Be3 Rd7 Be6 Rge7 Bef7 Ba6 Nc3 Be2 N3b5 Bg4 Bg1+
3rR3/3PN2p/1b2N2q/1pnR2qr/5nB1/Nn4NN/KR1n1QkB/3bn3 b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 f4 Kd7 g4 Kd6 d4 b5 Kd2 e5 Kc3 c5 Kb3 a2 f6 h3 g5 h2 f5 e4 f7 e3 g6 e2 f6 e1N g7 Qa5 Na3 Qd2 Be2 Qg5 Qd2 Na6 Nh3 Ne7 g8N Ng6 Bg4 Nf4 Ne7 Rg8 Rb1 a1N+ Ka2 c4 Qf2 c3 Rb2 c2 Rf1 Bh6 f8N h1Q f7 Nc5 Ne6 Nab3 f8R Nd2 Ng7 Ra4 Rf5 Rd8 Nh5 Be6 Ng3 Bf8 Ng1 Qhh6 Nh3 Bg7 Rf8 Bf7 Re8 Bh5 Bd7 Bd1 Bg4 Rc4 Rg1 Rc3 Rf1 Re3 Rh1 Re5 Rh2 Kc7 d6+ Kb7 d7 Rf5 d5 Bd4 d6 Rd5 Ng6 Kc6 Rg2 Rf5 Rg1 Kd5 Ne7+ Ke5 Ne2 Ke4 Rg3 Na6 Rd3 Bb6 Rd5 Re5 Nb1 Nc5 Na3 Nb1 Be3 Nd2 Bd4 Rf5 Be5 c1N+ Ka1 N1b3+ Ka2 Rc8 d8N Rb8 Ne6 Rd8 Qh4 Ke3 d7 Ke4 Ng3+ Ke3 Ng1 Kf2 Nh3+ Kg2 Ne4 Nh5 Bh2 Nf4 Ng3 Qgg6 Rh8 Rh5 Re8 Qgg7 Qf6 Qg8 Qd4 Qgg5 Qf2#
2N1RNqn/2N3r1/1K2P2N/1bN2rR1/1kp1r2n/3n1RB1/q1rbB2p/6Q1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 g4 Kd6 e4 Kc5 d3 h5 g5 f5 g6 h3 b6 b3 b7 h4 d4+ Kb4 e5 c5 d6 h2 d7 b2 g7 c4 e6 h3 d5 f3 Ke3 f4+ Kd4 f2 d6 f3 Nc3 b1Q Ra5 Ra7 Bf4 Rh4 Nb5 Qa2 Be2 f1R Nc7 f2 Nf3 Na6 b8N Nh6 g8N Nc5 Ne7 Nd3 Rg5 Ba6 Ne5 Bb5 Ng4 Nf7 Nh6 Nh8 Nc8 Rg1 Qc1 Rg2 Rf1 h1N Qd1 Qe8 d8R h2 d7 Ng3 Qa1 Qg6 Re8 Qg8 d8N Nf5+ Kd5 Rhg4 Nd7 Nh4 Bg3 Re4 Nb7 Bd6 Qg7 Bf4 Nbc5 Bd2 Nf8 Rb7 Rc1 f1R Rc3 Rf7 Qd4 Rf3 Qg1 Rf5+ Kd6 Nf4 Rf3 Nd3 Na8 Rg7 Nc7 Ba6 Kc6 Bb5+ Kb6 Be1 Bd1 Rc2 Be2 Bc3 Bd1 Bd2 Be2
nr4N1/kb4r1/1Br1P1B1/B2Rp3/1R1b2q1/BR1bB1Q1/pn2q3/2bN3K b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 e5 d4 f6 Qe2 exd4 e5 Ba6 e6 Bc8 Qe5 fxe5 b4 a5 f4 h5 Kf2 c5 g4 c4 Kg2 a4 d6 d3 g5 d2 f5 d1Q g6 h3+ Kh2 h4 f6 a3 b6 a2 b5 c3 g7 c2 b7 Ra6 b6 Qe2+ Bg2 Nc6 b8R Na5 b7 Ne7 g8Q Nd5 Nc3 Nb6 Nd5 Na8 Rb1 Nc4 Ne7 Nb2 Be3 c1B Qg3 Rc6 Ng8 Qc7 f7+ Kd8 d7 Bc5 f8B Bd4 Bc5 Qa5 Be7+ Kc7 Ba3 Kb6 d8B+ Ka7 Bc7 Qa4 Ba5 Bd7 Rd8 Be8 Rd5 Bg6 b8B+ Kb7 Bac7 Bd3 Ba5 Rh7 Bbc7 Ka7 Bd8 Rg7 Bdc7 Qc4 Bd8 Qg4 Ne2 Qc2 Kg1 Qd1+ Bf1 h2+ Kg2 Qe1 Nc3 Qed1 Rg1 h1R Be2 Qc2 Nd1 Qd2 Re1 Rh2+ Kg1 h3 Rf1 Rg2+ Kh1 h2 Rf4 Qc2 Bf3 Qe2 Be4 Rf2 Bg6 Rf3 Re4 Rf8 Bdc7 Rb8 Rf4 Na4 Rb3 Nb2 Nf2 Bb6 Rfb4 Bd4 Kg2 h1B+ Kg1 Ba6 Nd1 Bb7 Bd8 Be4 Bdc7 Bc2 Kh1 Bd3 Bcb6+
1Q1qkb2/2n2rq1/b2pR1p1/2R2P2/1B3NK1/1n2r1b1/bR3NNR/3R2qB b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Ke2 e5 c4 d6 h4 g3 Kf3 d3 f6 g2 f7+ Ke7 b6 d2 b7 b3 c5 b2 c6 Nh6 c7 Kd7 h5 Na6 b8R Ke7 Ne2 g1B Qb3 d1Q Rh2 Rh7 Nc3 b1B Ne4 Qe8 Ba3 Nf5 h6 Bb7 c8R Nc7 Bb4 Qd8 Kg4 Ba2 f4 Ra3 Nf2 e4 Bg2 e3 Bh1 Qd4 Rd1 Ba6 Rb7 Qa1 Rb6 Nd4 f5 Kd7 Nf4 e2 Ng2 e1Q Qb1 Re3 Qb2 Ne8 Rc5 Nb3 Rbb5 Nc7 Rb6 Be7 f8R Qf1 Rf6 Ke8 Qb1 Bf8 Rb8 Rh8 h7 Qe5 Nd3 Bf2 Qb2 Rg8 h8N Bg3 Nf2 Qg1 Ng6 Rh8 N6f4 g6 Qe2 Rh7 Qb5+ Rd7 Qb7 Rf7 Qa7 Re4 Rbb5 Re1 Qb8 Re3 Ba5 Nd2 Re6+ Be7 Rb2 Nb3 Bb4 Qg7 Rf6 Bf8 Re6+
1NBBK1Br/1k2n1p1/p1nB1QRP/4rN2/2q1qb2/B2q4/1qR3bN/n7 b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 Kf2 Kd7 d4 Kc7 e4 f5 h4 a6 b6+ Kb7 h5 g3+ Kf3 g2 e5 b3 d6 b2 h6 Qd7 d5 Qd8 d7 Ba3 e6 Qf8 d8B Qe8 e7 Nf6 d6 Rf8 d7 Bc5 Qd6 Rh8 Nc3 b1Q Ba3 Nd5 Nce2 Be3 Bc7 Qd3 d8B Nc6 Ra2 Qg6 e8B Nde7 Qf6 Bc1+ Kf2 f3 Bd7 f4 Nd4 Qge4 Rc2 Qc4 Be6 Rb8 Bd5 Bh3 Nf5 Rc8 Bcd6 Qcd3 B8c7 Rce8 Bg8 Qdc4 Bd8 Be3+ Ke1 f2+ Kd1 Bc1 Nf3 g1Q Nh2 Qgg2 Rg1 f3 Be2 f1N Bd3 Qh1 Rg6 f2 Be2 Bg5 Bg4 Ne3+ Kd2 Bg2 Bh3 f1Q Bg4 Qce2+ Kc3 Bf4 Kb3 Q4d3+ Ka4 Ne5 Kb4 N5c6+ Kc5 Qb1 Bh3 Qb2 Bg4 Qhf1 Bh3 Qff3 Bg4 Qfe4 Bh3 Ka8 b7+ Ka7 b8N Kb7 Be5 Qdc4+ Kd6 Q2f3 Kd7 Qd1+ Bed6 Qdd3 Rf2 Nc2 Bg4 Na1 Rc2 Nc8 Bh3 Re5 Bg4 N8e7 Ke8 Qca2 Nd4 Qac4 Bc8+ Ka7 Nf5 Ka8 Bd7 Kb7 Bc8+
Nn2R3/K1RqpN2/N2n2b1/8/b3qQ2/2qN3r/3PNBpk/rbBR3q b - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 g5 f4 b5 axb5 Bg7 e3 Bd4 exd4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 Kd7 h4 Kd6 b4 c5 h5 f5 b6 a5 d5 Ke5 b5 c3 g6 g3+ Ke2 c4 b7 g2 d6 c2 h6 a4 g7 f3+ Ke3 a3 h7 c3 b6 a2 d7 f2 Qf1 f4+ Kd3 f3 Kc4 Kf4 Kc5 Kg3 Na3 Nf6 Nc4 Ne8 Nb2 Nd6 Nd3 Ra3 Rb1 a1Q g8N Qb2 Nf6 Ra1 Nd5 Qa3+ Rb4 Qa8 Nc7 Qe8 d8B Bd7 Rc4 Ba4 Ne6 Qd7 Nc7 Nc6 b8N Qb7 Qd1 f1B Nba6 f2 Na8 Nb8 Qh5 Be2 Qf7 Qe4 b7 f1B Kb6 Bh5 Ka7 Bg6 Bb6 Be2 Rc7 Bg4 Nf3 B4f5 Rd1 Kh3 Nd4 Kh2 Ba3 c1Q Ne2 c2 Bf2 Qb1 Bc1 Qb3 Qc4 Qc3 Qb4 Be6 Qd4 Ba2 Qf6 Bb1 Qf5 Rg8 h8N Rd8 Nf7 Rh8 Ba3 c1Q Qg5 Q1c2 Bc1 Rh3 Qf4+ Rg3 Ng1 Qe1 Ne2 Qh1 Nde5 Qcf5 Nd3 Qe4 Nac5 Na6 b8R Qef5 Qd4 Rh3 Re8 Nb8 Na6 Qf4 Qf6 Qe4 Qf4+
1Nnk2q1/pq6/2Rb3n/1n2N1b1/NB2RP1r/R1r2pQ1/1K6/1R2nRbB b - - 0 1 legal: proof: f4 b5 e4 f5 d4 c5 a4 cxd4 axb5 fxe4 Qf3 g5 h3 g4 g3 gxf3 g4 Bb7 g5 Bd5 Bg2 Be6 Bf1 Bg4 hxg4 Qc7 Nd2 Qb6 Nb1 Qd8 Kd2 h5 c4 d5 Kc2 e5 b4 h4 g6 h3 g7 d3+ Kb3 d2 g5 d1N c5 e3 c6 e2 g6 e1B b6 h2 b5 e4 b7 d4 c7 d3 c8Q e3 b6 e2 Na3 d2 Qh3 Nd7 b8N Ne3 b7 d1N Bd2 Bh4 Nc4 e1B Bg2 Nc2 Bb4 Bef2 Ne5 Nb6 Ne2 Nh6 g8R Bg1 g7 Nc8 Nc3 Ne1 Ra3 Bg5 Na4 Nc3 Qg3 Nb5 Kb2 Rh7 Rh8 Qc7 g8R Kd8 Rg6 Qg7 Rf6 Qg8 Rc6 Bd6 Rc4 Rc7 Re4 Rc3 Rh7 Bb6 Rf1 h1Q Re7 Bg1 Re6 Qh5 Bh1 Qhf7 Na6 Qc7 b8R Qcg7 Rb6 Rb8 Rc6 Rb6 Nb8 Qb7 Rc5 Rc6 Rd5 Rc7 Rd1 Rh7 Rda1 Nf5 Rf6 Rh4 Rb1 Nh6 Re6 Bf8 Rb6 Bd6 Rc6
n1K1bN1q/2Rp2B1/1P3nR1/1r1kN2B/Rnrn2Q1/R1r2Bp1/4q3/5Rn1 b - - 0 1 illegal: No possible last move, all moves rejected
1n1Q3n/qpb1bR2/2N2n2/5NBB/B5P1/B1Brp2q/K1Rn3b/2N2kn1 b - - 0 1 legal: proof: d4 f5 b4 a5 f4 axb4 g4 c5 e4 fxe4 f5 cxd4 f6 Qc7 Bh3 Qa5 Bf1 Qd8 h3 g5 Bf4 d6 Bd2 Bf5 gxf5 g4 Bc1 g3 Kd2 Ra3 Ke1 Rf3 Kd2 Rf4 Ke1 Rg4 hxg4 Qc8 Rh3 Qc7 Rh1 Qd8 Kd2 Kf7 c4 h5 Kc2 e5 Kb2 h4 a4 b3 c5 g2 c6 e3 c7 e2 c8B e1B a5 d3 a6 d5 a7 d2 a8N h3 Rh2 d4 Ra6 e4 Re6 d3 Nc7 e3 Nb5 Nh6 Be2 Qb6 Re8 Bg3 Na7 Be7 Rd8 Bc7 Rd7 Rd8 Nf3 g1B Nc6 Qa7 Rg2 h2 Nh4 h1Q Nc3 Qh3 Na2 Bgh2 Kb1 b2 Bf3 Ba5 Be4 Bac7 Qf3 d1N Rc2 Nf2 Qd1 d2 Bd5+ Kf8 f7 Kg7 f8B+ Kf6 Bg7+ Kg5 f6 Kf4 f7 Kg3 f8B Nf7 Bc3 Nh8 Bh6 Ne4 Bg5 Kf2 Nf5 Nf6 Bf7 Kg2 Bh5 Kf2 Qe2+ Kg1 Qf3 d1N Qd5 Nf2 Qd4 Kf1 Qb6 Bed6 Rf7 Be7 Qa5 Rd3 Bd7 Qg2 Be8 Nh3 Qd5 Ng1 Qd8 Nh7 Ne5 Qh3 Ba4 Nf6 Nc6 Bf8 Nab4 Bfd6 Ka2 b1N B1b2 Be7 Ba3 Rd6 Nd3 Nd2 Nc1 Rd5 Kb2 Rd3 Ka2
1Rn5/RNrrrN2/pbRP1n1K/R3R3/q1rqpB2/kN6/1q6/3Qn2B b - - 0 1 legal: proof: g4 d5 e4 g5 h4 b5 c4 f5 a4 Bd7 f3 dxe4 f4 bxc4 fxg5 f4 h5 Bb5 h6 Nxh6 axb5 Ng8 Ke2 Kd7 d4 Kd6 b4 c5 d5 h5 b6 e5 g6 a6 b5 h4 g7 e3 Kf3 h3 b7 c3 g5 c4 Kg4 Kc5 b6 Kb4 g6 e4 Be2 c2 Kf5 f3 Qf1 h2 Nh3 f2 Ra5 c3 Ng5 Rh7 Nf7 Nc6 b8R Ra7 b7 Nf6 Kg5 Ne7 g8R Nc8 g7 Bc5 Bf3 e2 Nd2 e1N Nb3 Bb6 Bf4 c1Q Re8 c2 g8R Qb2 Rg6 c1R Re5 Rc7 d6 Qd7 Rg7 Qa4 Qe2 f1R Qd1 Rc4 Rg1 Ka3 Bh1 Qd4 Rg2 Rf3 Rc2 Rfc3 Rc1 Rc7 Kg6 R3c4 Rc2 Rb4 Rc6 Rc4 Kg5 Rh8 Rh7 Rd8 Kh6 Re7 Ra8 Rc7 b8N Rdd7 Rh8 Re7 Nd7 Qb2 Ndc5 Rcd7 Qh5 Rac7 Ra7 Qd4 Nb7 Qb2 Bg2 h1Q Bf3 Qh3 Bh1 Qd3 Qd1 Qdd4 Ra8 Na7 Rhb8 Nc8 Ra7
1Rnb1RR1/2P3pr/2r3br/kr6/1R2B1nN/NbQ5/1rn1p1B1/R4N1K b - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 a4 hxg4 axb5 f5 b6 fxe4 c4 Rh6 d4 Rf6 b5 Rf7 Ba3 Rf5 Bb4 cxb4 c5 Qc7 d5 Qc6 dxc6 Rh5 Ne2 Rh4 Ng1 Rh8 h4 Kd8 f4 a5 Kf2 d5 Kg2 e5 h5 b3 b7 Kc7 f5 a4 f6 e3 f7 e2 h6 e1N+ Kh2 e4 h7 b2 Nc3 b1R Bd3 a3 Nh3 d4 Rg1 e3 Qb3 g3+ Kh1 a2 Qe6 g2+ Kh2 e2 Qf6 Ra6 Ng5 Ne7 Nf3 Bf5 Nd2 Nd7 b8R Ne5 Nf1 Nc8 Be4 Be7 f8R Rb2 Nb1 d3 Na3 Bg6 Qf3 d2 Qc3 d1B Rb1 Rg8 h8N a1R Rh1 g1R Ra8 Rd2 Rb4 Rg5 Rg1 Rd6 Kh1 Bb3 Rb8 Ra2 Ra8 Be8 Ng6 Rh8+ Nh4 Rb2 Bg2 Rh7 b6+ Kd8 b7 Kc7 b8R Ng4 Be4 Rdh6 Rg8 Nc2 Rf8 Kd8 c7+ Kd7 Rg8 Bg6 c6+ Kd6 Rf8 Rb5 Rg8 Bd8 Bg2 Na7 c8B Kc7 Bb7 Kb6 c7 Ka5 Bbe4 Re6 Rf8 Rc6 Rg8 Be7 Rbf8 Bd8 Rb8 Nc8 Nd2 Bf5 Ra1 Bg6 Nf1
Q3N1q1/2RqnB1q/qpBR2r1/1pP2k1R/8/1q2RK2/q2B2n1/b1NR1b2 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 fxg5 f4 d4 cxd4 b4 a6 b5 axb5 g6 Ra6 g5 Rf6 h4 Rf5 h5 Bg7 h6 Bxh6 exf5 Bf8 Kf2 e5 a4 Ke7 c4 h5 f6+ Ke6 f7 h4 g7 f3 a5 e4 c5 e3+ Ke1 f2+ Ke2 d3+ Kf3 h3 g6 d2 a6 h2 a7 e2 a8R e1Q R8a5 Rh6 R5a3 Qe2+ Kf4 Na6 Rc3 Nc7 Rg3 Ne7 g8B Bg7 Bg2 f1Q+ Rf3 Ncd5+ Kg4 b6 Na3 Nf4 Nc4 d5 Nd6 d4 Qa4 d1Q Ne8 d3 Qa8 Qa2 Bd2 Qdb3 Rd1 Ba1 f8R+ Ke5+ Kg3 Bh3 Bf7 Kf5 g7 Qc8 g8R Qca6 Rg4 Rg6 Re3 Qe2 Bb7 Bf1 Bc6 Ng2 Rh8 Qe1+ Kf3 Qh4 Rd4 Qh7 Ne2 Qg8 Rg1 h1Q Nc1 Qh6 Rd6 Qhh7 Ba5 d2 Rh1 Qh2 Rh7 Qh4 Rg7 Qhh7 Rh5+ Rg5 Re6 Qab1 Re1 Q1a2 Reh6 Ng6 Bc4 Ne7 Bc3 Nc8 Rc7 Ne7 Bf7 d1Q+ R3e2 Qdc2 Re3 Qd2 Rd1 Qd4 Bd2 Qd7 Rh3 Rg4 Rd6 Rg6 Rh5+
2B2K1N/1q6/nq2P3/2NqN1p1/2bp1R2/r1kb1RNn/qQN1b2R/6Bb b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 f3 b6 axb6 Bd2 b5 Bc1 b4 h3 b5 h4 f5 h5 f4 h6 g6 Rh5 Bg7 hxg7 Ra6 Rh6 Rf6 Rh1 Rf5 gxf5 Ke7 Rh3 Kf7 Rh1 Ke8 Kf2 Ke7 c4 Kf6 e4 Ke5 a4 d5 a5 h5 c5 h4 c6 h3 f6 d3 a6 Kd4 a7 b3 a8N b4 c7 h2 f7 b2 f8R b3 e5 d2 e6 g5 Ba6 Nd7 Na3 b1B Nc2+ Kc3 Qe2 d1Q Ra3 Rh3 Nb6 Ngf6 g8N Nh5 Nf6 Nb8 Nc4 Bb7 c8N Qb6+ Be3 d4 Ne7 Qd2 Ne5 Be4 Ne1 Qa2 Bc8 Bbd3 Nfd7 Na6 Nc5 Bc4 Rf6 Bed3 N7g6 Rg3 Nh8 Rh3 Ra4 b2 Nc2 b1Q Ra3+ Q1b3 Kf1 f2 Kg2 f1B+ Kf2 f3 Rf4 Qb7 Qd2+ Kb2 Ne2 Q3b6 Ng3 Qd5 Rg1 h1Q Rg2 Bfe2 Rh2 Qg2+ Ke1 Be4 Bg1 B2d3 Qe2 f2+ Kd2 f1B Qf2 Bde2 Raf3 B2d3 Qe2 Qh1 Ke1 Qdb7 Kf2 Bed5 Qd2 Bfe2 Qc1+ Kc3 Qb2+ Kd2 Re3 Qe4 Ref3 Bc6 Kg2 Qd5 Rf8 Ng7 Nh5 Ne8 Rf4 Nf6 Kf2 Qd6 Re3 Bh7 Rb3 Ne4+ Kg2 Rf3 Ng3 Nf2 Rc3 Bce4 Re3 Qdd5 Rc3 Nd3 Kh3 Re3 Rb3 Bh1 Rc3 Rf3 Kg4 Nf2+ Kh5 Nh3 Kh6 Bg6 Rf7 Be4 Kg7 Bh7 Re3 Bg6 Re4 Ra3 Kf8 Bf5 Rg4 Bh7 Rf3 Bhd3 Qc1+ Kc3 Rgf4 Rb3 Qb1 Ra3 Qb2+
1r1QBrqR/1P6/1N1k2N1/B1pq1b1N/1Nr2rb1/2RNp2q/3r1b2/B1K5 b - - 0 1 legal: proof: g4 d5 e4 b5 f4 f5 a4 bxa4 h4 fxe4 c4 dxc4 f5 Na6 g5 Nc5 Qe2 Nf6 Qd1 Ne6 gxf6 g5 Qe2 g4 Qd1 Ng5 hxg5 Be6 Kf2 Bd7 Ke1 Bc8 b4 Kd7 d4 e5 Kd2 h5 d5 a5 f7 a3 f6 e3+ Kc2 c3 b5 h4 g6 g3 b6 e2 g7 e1Q g8N a2 d6 e4 b7 a4 Be3 h3 Bd2 g2 Bf4 a3 Qd5 h2 Be3 Qg3 Ne2 g1Q Nf4 Qh3 Kc1 c2 Bd4 Rb8 Nc3 c5 Nd3 e3 Rb1 a1R Na2 Be7 Nab4 Ra2 Rb3 Qgg2 Qg5 Qd5 Rc3 Rb2 Be2 a2 Bh5 Ke6 d7 Kd6 f8N Qe8 d8B Bg4 Rf1 h1B f7 Be4 Nf6 Bef5 N8d7 Rf8 Ba5 Qc8 Nb6 Qd8 Nh7 Qe8 Qg8 Bh4 Rh1 Bf2 Nf6 Qc8 Bg6 Qce6 Nh5 Qe8 Na6 Rb4 Bg7 Rf4 Nab4 a1R+ Kb2 Ra3 Kc1 Ra2 Qh8 Rg8 f8N Qd8 Be8 Qg5 Nfd7 Rf8 N7e5 Qg6 Bf6 Qgg8 Ng6 Ra3 Kb2 c1R Bg7 Rd1 Rh2 Rd2+ Kc1 Ra4 Bd4 Be6 Qf6 Bf5 Qd8+ Bd7 Rb3 Bg4 Ba1 Rc4+ Rc3 Rcf4 Na6 Rac4 Nab4 Qhf3 Ng7 Qg2 Rh8 Qh3 Qh4 Bc8 Nh5 Bcf5 Qd8+
1KQ5/6Br/qp1N3N/1R2bnp1/NNn3rq/2P1pb2/1N3RBk/B1q3n1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 Na6 b5 Nb8 b6 axb6 a4 f5 exf5 h5 g4 hxg4 a5 Nf6 a6 Ng8 axb7 Ra2 Bh3 Ra4 Bf1 Ra8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 h4 e4 f4 d3 c3 g3 h5 e3 h6 g2 h7 d2 Bb2 d6 Ne2 g1Q Rh2 Qd7 Rf2 Qd8 Nc1 Qg3 Ra5 Ra7 Ba1 Qh4 Nd3 Nd7 Kc6 d5 b8N d4 Nb2 d3 Na3 Bd6 Bg2 Be5 Nb5 Nh6 Qg4 d1Q Nd6 d2 Rb5 Qc1 Na6 d1N Nb4 Ra4 Qh3 Qe8 Kc7 Bb7 Qg4 Qa8 Qh3 Re8 h8N Qa6 Nf7 Rh8 Qg4 Bf3 Qh3 Ng8 Nh6 Ne7 Qg4 Rh7 Qh3 Nc5 Kb8 Nb3 Qg4 Nd2 Qh3 Kg7 f6+ Kg6 f5+ Kh5 f7 Nc4 f6 Nf5 f8N Na3 f7 Nc4 Re2 Nf2 Rd2 Ba8 Nd7 Bf3 N4d3 Rb4 f8B Ra4 Bg7 Rb4 Qg3 Nh3 Rf2 Ng1 N7c5 Ra4 Qf4 Rb4 Qe4 Ra4 Qa8 Rb4 Nf7 Kg4 Nh6+ Kg3 Nca4 Kh2 Qc6 Na5 Qc8 Rg4 Nb4 Nc4 Qc7 Ne7 Qd8 Nf5 Qc8
1N2k3/3r3p/b5R1/pb2R1N1/2P1q1p1/nqQN1rb1/N1n1NnB1/1BK2B2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 Nh6 f5 Ng8 f6 exf6 h4 g5 hxg5 Qe7 g6 Qd8 g7 Qc7 Ra3 Qb6 Ra1 Qd8 g4 Bb7 g5 Ba6 g6 Bc8 Bg5 fxg5 Kd2 f5 c4 d5 b4 a5 e4 f4 e5 f3 b6 f2 b7 d3 b5 d4 e6 g4 b6 Bc5 e7 Nc6 b8N Qd5 b7 Nf6 g8N Nb4 g7 Qe4 Nh6 Nc2 g8B Bd6 Bd5 Ra7 Ne2 Na3 Qc1 Bg3 Nf7 Rf8 Ng5 Rf7 Kd1 d2 Na6 Rf8 b8N Rd7 Nc5 Ba6 Nd3 Rf7 Bg2 f1N Rh6 Rf8 Qc3 Rf7 Nec1 Rf8 Rg6 Ne3+ Ke2 d1B+ Kd2 Bb3 Ne2 Ba4 Kc1 B4b5 Bf1 Nec2 Bc6 Qe5 Bcg2 Ne4 Ra2 Nf2 Rb2 Rf3 Rb3 Ba4 Rb5 Qe4 Re5 Bc6 Qb4 Ba4 Nbc3 B4b5 Na2 Ne3 Ne1 d3 Qc3 d2+ Kb2 d1Q Nd3 Qa4 Kc1 Qb4 Ne6 Kf7 e8B+ Ke7 Bf7 Qb3 Ng5+ Kd8 Be6 Ke8 Ne1 Qd5 Bf5+ Qe6 Bb1 Nec2 Nd3 Qe7 Rf5 Qe4 Re5+
3QnbRK/N2Brk2/6pB/3R1qp1/1P2NNp1/1N1rNR1n/5bbb/6b1 b - - 0 1 legal: proof: e4 b5 c4 f5 cxb5 d5 exd5 h6 a4 Nc6 g4 fxg4 Qb3 Nd4 Qe3 Ne2 Qg5 hxg5 a5 Bb7 a6 Bxa6 Nc3 Bb7 Nb1 Bc8 b4 c5 f4 a5 Kf2 c4 Ke3 c3 Ke4 c2 Ke5 a4 d4 a3 h4 a2 b6 Bb7 h5 Ba6 d6 Bb7 d5 Ra5 f5 Rh7 f6 Qd7 h6 Ra3 Rh3 Nf4 Nf3 Rd3 Na3 Qc8 Rg3 Nh3 Nd4 Rd2 Nc4 Rd1 Rd3 Qc7 f7+ Kd8 Bf4 Rd2 Rd1 c1B Nb3 Qc8 d7 a1B+ Ke6 Ba8 b7 Be5 b8N Nf6 Na6 Ne8 Nac5 Bcb2 Kf5 Bbd4 Kg6 Bg1 Rc3 Bb8 Bd3 Bc6 Bf5 Bd6 Be3 Bg3 Rd3 B3f2 Bf4 Rh8 h7 Rg8 h8N e5 Kh7 Ke7 d8N e4 d6+ Kf6 d7 e3 Bd6 e2 Ng6 Bg2 Nf4 g6 Rf3 Be7 Nc6 e1B d8Q Bg3 Ne3 Bef2 Na7 Rg7+ Kh8 B3h2 f8R+ Rf7 Rg8 Rd4 Rd2 Qe6 Rd1 Qe5 Bd7 Qf5 Ra1 Rg7 Ra5 Rd3 Be5+ Kf7 Ne4 Bf8 Qb6 Ke7 Rd5 Rf7 Ba1 Qe6 Bg7 Qf5 Bh6 Rg7 Nd6 Kf6 Qa5 Re7 Ne4+ Kf7 Qd8
5BR1/2p3Rp/K1R1R3/N1Qnn1nb/2np4/2r1nN1r/4P2R/k1q1NBb1 b - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 b4 exf4 h4 gxh4 c4 Ke7 b6 Nc6 c5 Bg7 b5 Ke8 Kf2 Nb8 d4 Qf6 b7 Qb6 cxb6 Bxd4+ Kf3 Bc3 Kf2 Bd2 g4 Ke7 g5 Ke6 g6 Kd5 g7 Kc4 Nc3 d5 Rb1 a5 Bg2 f5 Na2 h3 Ra1 h2 Kf1 f3 Nb4 Kc3 Qe1 a4 Nc2 f4 Kf2 a3 Qd1 a2 Ne1 d4 Nd3 Nf6 g8R Ra3 Rg7 Nc6 b8R Be3+ Ke1 Nd5 b7 Bg4 b6 Bh5 Bf1 Rg8 Re8 Ne5 b8N Rf8 Rb1 a1Q b7 Rf7 Qa4 f2+ Kd1 f3 Re6 Rf4 Nc6 Rh4 b8R Rh3 Rbg8 Rb3 Na5 Qa3 Bg2 f1N Qb5 f2 Nf3 Nd2 Bf1 Ndc4 Nde1 Qc5 Ba3 Qc6 Rhg1 h1N Qc5 Ng3 Rg2 Ne4 Rh2 Ng5 Ra1 Rb7 Bb4+ Kb2 Rc1 Rb5 Rc3 Ka1 Kc2 Rb7 Kb3 Rb6 Bg2 f1N Rc2 Rb5 Ka4 Bg1 Rc3 Nfe3 Bf1 Qa8 Ba3 Rb3 Rc2 Rc3 Kb5 Qd8 Ka6 Qe7 Rb2 Qe8 Rbb6 Qa4 Rbc6 Qc2 Qa7 Qd1 Bf8 Qc1 Qc5
rrBK2Q1/Rr4Nn/8/3R3N/Bb1R3B/p1rBp2p/q1P3bq/1B3k1n b - - 0 1 legal: proof: d4 c5 a4 b5 axb5 g5 h4 gxh4 e4 e6 Qe2 e5 Qe3 cxd4 f4 dxe3 fxe5 Qc7 Nc3 Qb6 Nb1 Qd8 Ke2 Ke7 Kd3 Ke6 Kd4 f5 g4 d5 b4 a5 g5 h5 g6 f4 g7 h3 b6 f3 b7 f2 b5 h4 b6 h2 Nd2 a4 Ngf3 h3 Nh4 Nf6 g8B+ Kd7 e6+ Kc6 Ke5 Kc5 e7 d4 e8B d3 Bb2 Be7 Nf5 Kb4 Bd7 Qc7+ Ke6 Nc6 b8R Nh7 e5 Qa7 Ng7 Bb7 Bc8 Nd4+ Kd7 Nf5 e6 Ng3 Ne4 d2 Bd3 f1R Bf6 d1R Bh4 Rf7 Nf6 Kc3 Nfh5 Bg2+ b7 Bb4+ e7 Kd2 Kd8 Qa6 Rf1 h1Q e8B Qh2 Rf5 Ke1 Rd5 a3 Ba4 Qc4 Rb1 Qa2 Rb3 Ra6 Ra8 Rb6 b8Q Rfb7 Ra6 Rb1 Raa5 Rc6 Ra7 Rc3 Rd4 Kf2 Rd5 Kg1 Qa8 Nh1 Qb8 Bf8 Rb4 Bc5 Rc4 R1b6 Qg3 Bb4 Rcd4 Rb8 Qg6 Ra8 Qe8 Rbb8 Bf7 Rf8 Be6 Rf7 Qg8 Rfb7 Rf5 Qa1 Ba2 Qb1 Rc5 Qa1 Bb1 Qa2 Bf5 Kf1 Rcd5 Nf8 Bg6 Nh7 Bd3+
1BK1N1Q1/3rpB1B/p1b1Nq1P/4pN2/br1b2b1/2R1RkN1/r3nN2/3b4 b - - 0 1 illegal: No possible last move, all moves rejected
1N2N1BR/6K1/2Qr2B1/2n5/N1pp1pP1/2rq1B1B/qBR1bb2/rk1q1r2 b - - 0 1 legal: proof: h4 b5 d4 c5 c4 e5 f4 exf4 Nh3 g5 Ng1 gxh4 b3 a5 b4 Na6 cxb5 axb4 Kd2 c4 Ke1 Nc5 dxc5 Qc7 Nd2 Qa5 Nb1 Qd8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 a4 d5 a5 f5 b6 h3 b7 b3 b8N f3 a6 h2 c6 f2 a7 f4 c7 b2 Nh3 Bc5 Ra2 Nf6+ Kh6 Bg4 c8B Nd7 Kg7 h5 Qa4 h4 Qc6 Rh6 Nc3+ Kd4 e4 b1Q e5 Be2 g4 Kd3 Ba3 Rd6 Rc2 Qa2 Ng5 h3 e6 Bb6 e7 Nc5 Bg2 f1R e8B Ra1 Ne6 Rf1 Rg1 h1Q Nc7 h2 Bh3 Ra1 Rgc1 Qd1 Be6 h1R Na4 Rf1 Bg8 Qd7+ Bef7 Qd8 Bb2 Qd7 Nba6 Re8 a8B Re3 Ne8 Qd8 Rc3+ Kd2 Rb3 Rc3 Nb8 Qd7 Rb4 Qf5 Bg6 Qd3 Kf8 Ba7 Rb7 Bb6 Rh7 Ba7 Kg7 Bb6 Rb1 Kc2 Rh8 Ba7 Ba3 Bb6 Rb2+ Kc1 Rc2+ Kb1 Bb2 d4 Bb7 Bd8 Qa6 Bh4 Bf3 Bf2 Qc6
7R/1K1bb3/1R3q1P/RR3Nbk/2Nn1r2/p2B2q1/1B1N2pp/1Qq2Rbb b - - 0 1 legal: proof: d4 b5 a4 bxa4 Qd3 c5 Qd1 cxd4 g4 f5 e4 fxe4 Ba6 h5 Bd3 a6 Bf1 h4 h3 g5 Qe2 a5 Qd3 Rh5 Qd1 Nc6 Ne2 Ne5 gxh5 g4 Ng1 g3 Ba6 Ng4 Bf1 Ra6 hxg4 Rh6 Qe2 Rh7 Qd1 Rh8 Kd2 Kf7 b4 d5 f4 e5 c4 a3 g5 d3 Kc3 d2 h6 Kg6 b5 a2 b6 d4+ Kb3 e3 Ka4 d3 Kb5 a4 Kc6 e2 f5+ Kh5 g6 h3 b7 e4 b8N h2 f6 e3 g7 Bd7+ Kb7 Ne7 g8R Nf5 f7 Nd4 c5 Qf6 c6 Be7 Rg6 Rf8 Nf3 e1B c7 e2 c8R Bf2 Bb2 e1Q Na3 Bg1 Qb1 d1Q Nc6 d2 Rb8 Qc1 Nc4 d1B Nfd2 Bf3 Bd3 Bd5 Ra8 a3 Ra5 Be3 Rf1 Bg5 Rf5 Bh1 Rfe5 g2 Reb5 Qfe6 Rf6 Qg3 Rf1 Qf6 Rb6 Ra8 f8R Rd8 Rh8 Rf8 Qc2 Rf7 Rb1 a1B Qb3 Qg6 Qb5 Rf4 Qf5 Qf6 Qe4 Bb4 Ne7 Bc5 Nf5 Bb4 Bc3 Be7 R1b5 Bb2 Bb4 Bc3 Bd6 Bb4 Be5 Bbc5 Qe1 Ne2 Ba1 Bg1 Bb2 Nd4 Qd1+ Ne2 Qc2 Nd4 Qb1
1r2q3/3p3q/Kb2R1p1/BBR1n3/B1q2N2/2Pk1p2/1BN1bb1R/bB1b2Q1 b - - 0 1 legal: proof: d4 b5 e4 c5 b4 cxd4 g4 f5 f3 e5 g5 a5 g6 axb4 Bd2 f4 Bc1 Nc6 Bh3 Nce7 Bg2 hxg6 Bf1 Nf5 exf5 e4 Na3 g5 Be2 e3 Nb1 g4 Bf1 Ra6 Ne2 Re6 Ng1 Re4 fxe4 Rh4 Nc3 Rh5 Nb1 Rh8 Ke2 Ke7 Kd3 Kf6 a4 Ke5 h4 e2 f6 e1B h5 b3 a5 b4 Kc4 g3 Kb5 b2 a6 d3 f7 Kd4 a7 f3 a8B b3 h6 g2 c3+ Ke5 h7 d2 Ra5 Bb4 f8B Bf2 Bc6 Nf6 Nh3 g1B Rh2 Qe8 Nf4 Ng4 Na3 b1Q Bb2 Qa2 Nc2 Ba3 Bb4 Bb7 Qe1 d1B Rh6 Rf8 h8R Bb6 Rf6 Bgf2 Rh2 Rg8 Bd3 Rh8 Qg1 Rf8 Ba1 b2 Rfh6 b1Q Bb2 Qaf7 Bc4 Qg8 Bb3 Qh7 Ba4 Qa2 Rf6 Qee6 Rg6 Rb8 Rgh6 Qe8 Rg6 Ba8 Ka6+ Qd5 Bcb5 Qc4 Rgh6 Bd5 Rc6 Qd4 Rf6 Bc4 Rc6 Bce2 Rc5+ Kf6 e5+ Kf5 e6+ Ke4 e7 Ne5 Rc6 Qc4 Re6 Qeg8 e8B g6 Bf7 Qe8 Rc6 Qd3 Ba2 Qd4 Bb1 Qc4 Bc1 Bb2 Re6 Ba1 Bb2 Qb3 Bc4 Qa2 Rc5 Qb3 Bcb5 Qc4 Nh5 Kd3 Ba5 Qhf7 Rh4 Qfe7 Rh2 Qh7 Nf4+
1Nn1r1q1/r2bR2P/2RbpN2/1B4R1/pN1R2Q1/2RKp3/1brnpk2/4B3 b - - 0 1 illegal: No possible last move
k1q1q1Rn/2R3pB/ppRpBnb1/1N2n1r1/2P1B3/4b3/8/KQN1RR1r b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 g4 Nc6 gxh5 Nb8 d4 cxd4 b4 Bd6 a5 Bf8 a6 bxa6 b5 Bd6 Kf2 Ba3 Ke1 Bf8 b6 Ba3 b7 Qb6 Bg5 Bf8 Bd8 Qf6 Ba5 Qd8 Bb6 axb6 Kd2 f5 Kc1 d6 Kb2 Kd7 e4 Kc6 c4 f4 h4 f3 e6 f2 e5 d3 e7 d2 e8B+ Nd7 b8R Bb7 h6 Kc7 e6 Ra7 h7 Ngf6 h5 Qc8 e7 Ba8 h6 Ne4 Bg2 f1N Nc3 Ne5 Bf7 Ng6 e8B Nf6 Be6 Be4 Nge2 Ne3 Re1 Be7 Qb1 d1Q Nc1 Qh5 Ba4 Bf5 Bc2 Neg4 Bge4 N4e5 Ra8 Rb7 Ra7 Kb8 Nb5 Rc7 Bcd3 Rc6 Rc7 Rc5 Rc6 Ka8 Bc2 Rd8 h8R Qe2 Re8 Nh8 h7 Bg6 Rg8 Rd5 Ra3 Rf8 Rf3 Qe3 Ka1 Rd1 Re2 Rh1 Re1 Rf7 Rff1 Qe2 B4f5 Qe4 Rc7 Qc6 Bcd3 Q6e8 Bfe4+ Nd5 B6f5 Nf3 Nb3 Bg5 Rf8 Be3 Rg8 Bh5 Nc1 Ng6 Be6 Rf5 Bc2 Re5 B4f5 Nf6 Bce4+ Rd5 Rf8 Qb7 Rc6 Qbb8 Rf7 Qbc8 h8R Re5 Bg4 Rg5 Rg8 Nh8 Bgf5 Ne5 Bh7 Bg6 Rfc7
R3kqR1/B1b2rrP/7p/1Qr2NR1/B2q2pR/K3p3/3Npqn1/2Nn2R1 b - - 0 1 illegal: No possible last move
qR2RN2/qn1R2pK/r1pp4/1BbQ1k2/2r1q3/P1R3Bp/2N1b3/N3r2R b - - 0 1 legal: proof: h4 e5 g4 b5 d4 a5 dxe5 a4 c4 f6 g5 fxg5 b3 gxh4 Bg5 h3 Bh6 Nc6 Bc1 Nd4 Rh2 b4 Rh1 Nb5 cxb5 axb3 Kd2 Ke7 Ke3 Ke6 Kf4 h5 e4 b2 a3 c6 b6 h4 b7 d6 b8R h2 Qd5+ Kd7 Kf5 b3 Kg6 h3 f4 Qb6 f5 Ra6 f6 Be7 f7 Nh6 Nd2 b1R Ngf3 b2 Ne1 Bf6 Nb3 Qa7 f8N+ Ke7 e6 Nf7 e5 Rh4 Bg5 Nd8 Bf4 Nb7 Nc2 Re1 Rc1 b1Q Bg3 Rc4 Kh7 Qa8 Na1 Qb6 Bd3 Qba7 Be2 Bg5 Bf1 Be3 Bd3 Rd4 Bb5 Bd7 Rd8 Rc4 Rb8 Be8 Rd8 Bh5 Rd7+ Ke8 e7 Be2 Qg2 Kf7 e6+ Kf6 e8R Kg5 e7 Kf5 Rb8 Bf2 e8R Bc5 Rg1 h1Q Qd5+ Kf6 Rf1+ Qf3 Rh1 Qe3 Nb4 Qe5 Rc3 Kf5 Qd3+ Qe4 Nbc2 Rd4 Qd1 Rc4 Qd5+
1K2B2B/2P2BRQ/5Np1/pp1r2R1/2Bnp1rq/RB1bN1k1/r5n1/1r5r b - - 0 1 illegal: No proof kernel
2kR3N/2p2qB1/Pb2R2b/4NN2/b4N1p/bR1r3B/3ppr2/K1bb1NQ1 b - - 0 1 illegal: No proof kernel
2B4N/1p1RNB2/1p2rn2/2Q1q1Nn/Pk2Rqrp/pr4pN/R4b1N/5K2 b - - 0 1 illegal: No possible last move
B2BK2N/R2P4/p1Rp1Qrq/4p1B1/4p1q1/B1p1N2r/1n1k3p/1qBbR3 b - - 0 1 illegal: No possible last move
2nNR1Nr/qn2RP1R/RRBqq3/1r2n1q1/r1Q5/b1B2qk1/3bb3/K2N4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 a5 b4 e5 Kb2 h5 b6 d5 c5 h3 c6 e3 g3 d3 c7 e4 b7 d2 b5 h4 b6 h2 Be2 h3 Qa4 d1Q Ra3 d4 Ka2 d3 Bf3 e2 Nd2 e1N Nc4 e3 Bb2 d2 Bg2 Kg4 f5 e2 f6 Nc6 b8N Nge7 f7 Qb3+ Ka1 Ba6 c8R Nf3 b7 e1B Bf6 Nfe5 Rc7 Nc8 Nd7 Ra7 Ra2 Ba3 b8R Qb6 Qb5 a4 Nd6 Na5 Ne2 Nb7 Bc6 Qe7 Bg7 Qg5 Nc3 Rh5 Qd5 Be2 Nd1 Qb3 Qb5 Qe6 Qd3 Rh8 Bf6 Ra5 Qb3 Rd5 Qc4+ Kf3 g4 Kg3 Bg7 Rb5 Nf6 Rh4 Ng8 Rh8 Rf1 h1Q Re7 Qf3 Rh1 h2 Bf6 Qfe3 Bg7 Qa7 Bf6 Qgf5 g5 Qg4 g6 Qg5 Rf1 h1Q g7 Qf3 Rh1 Bf2 Rh7 Be3 Nh6 Bf4 g8R Be3 Rge8 Bf4 Ng8 Be3 Nf2 d1Q+ Qc1 Qdd5 Nd1 Bd2 Qc3 Bac1 Qc4 a3 Rb2 a2 Ra8 Qdc5 Rb3 Ba3 Bg7 Na5 Nb7 Qcd6 Nd8 Nb7 Rb4 Qac5 Ra6 Qa7 Rb3 Bab4 Kb2 a1R Bf6 Raa5 Bg7 Ba3+ Ka1 Ra4 Rb2 Rd5 Rbb6 Rb5 Bf6 Ng4 Bb2 Ne5 Bc3
r2nKN2/r4n1n/Bn1NQ1P1/3n1nb1/1qB2kb1/nBR3Br/4R3/2bR2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 d5 c4 a5 g4 f5 e4 h3 b4 h2 b6 f3 g5 f4 c5 f2 b7 f3 g6 d3 c6 a4 c7 a3 b5 d2 b6 d4 Qe2 d1N Ra2 d3 Be3 d2 Qa6 Qd6 Ne2 Be7 Nd4 Nc6 b8B Nf6+ Kh6 Nc3 Kg7 d1R Kf7 h5 b7 h4 Nb3 h3 Bg2 f1N Ra1 f2 Rg1 h1N Nc1 a2 Qb6 h2 Ne2 Nb5 Bh3 Nhg3 Nd2 h1N Nd4 Qb4 Ne6 Na3 Rg2 Nf5 Nf8 Nh7 Ke8 Nh6 Be6 Nhg3 Bb3 Bg5 Rb1 Re1 Rd1 a1B Rh2 Bg4 c8B+ Qd6 Bc5 Nf7 Nc4+ Kf4 e5 Bb2 e6 Ne3 e7 f1N Re2 Nd5 Bg1 Nd2 Bc7 Nf5 b8R Ncd8 Ba6 Ra7 Rc8 Bc1 Qc6 Rf1 Qd7 Rf3 Qe6 Rh3 Bb8 Qc7 Nd6 Qa5 Rc3 Ndc4 Nb5+ Nc7+ Kd7 Nc6 e8B Rg8 Nd4 Qb4 Nb5 Nce3 Bc4 Kf3 Bb3 Na8+ Bc7 Ncd8 Bc4 Nb7 Bg3 Rh8 Nd6 Nb6+ Kc6 Nf6 Nh7 Rf8 Bd7 Rfa8 Nf8 Nh7 Be8 Qa5 Kc7 Qb4 Ba4 Nbd8+ Nb7 Nc8 Kd7 Nb6+ Ke8 Nd7 Rcc2 Nb6 Bab3 Ned5 Nd6 N7h6 Bh4 Nhf7 Rc3+ Kf4 Bg3+
1b2bRr1/1NqN1bBB/3r3B/3BkrP1/bB2qn2/2R3K1/2bn2R1/qb1Q4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 h5 g4 a5 c4 f5 g5 f3 b6 h3 b7 a4 b5 d3 b6 a3 c5+ Ke5 c6 d5 c7 f4 Be3 d2 Qe2 d1B Nd2 h2 Qa6 h4 Nb3 a2 Qe2 h3 Bc1 d4 Ba3 d3 Nc1 d2 Nb3 Ne7 Nc5 Bc2 Qe1 d1B Ne2 Ng6 Bg2 Na6 b8B Bd7 c8R+ Qc7 b7 Be8 Rc1 a1Q Rg1 h1B Bb4 h2 Nc3 Bd6 Nd5 Rg8 Nf6 Bb1 Rd8 Bda4 Rc3 Bf7 Ba7 Rc8 Rf8 Rd8 b8B Bbc2 Ne6 Nc5 Qd1 Nb3 Nc5 Nd2 Nb7 Bfe8 Bac5 Rd7 Ke1 f2+ Ke2 f1B+ Kf2 f3 Kg3 f2 Bf3 Rdg7 Rg2 Bc4 Bba7 f1R Bd4+ Ke6+ e5 Rd7 Bac5 Nf4 Bd5+ Kf5 e6 Ba2 e7 Bab1 Bf2 Ke5 Bfe3 Bf7 e8B Rd8 Bd7 Be8 Bf5 Bf7 Rf2 Bhe4 Rg2 h1Q Bh7 Beg6 Rf2 Qe4 Rg2 Qc6 Bf2 Bb8 Bg1 Qc7 Bgd4+ Kf5 Nh5 Rf2 Bg7 Rd6 Bh6 Rf1 Bd4 Rf2 Bdg7 Rf1 Nf6 Ke5 Qc1 Bfe8 Qe1 Bgf7 Qd1 Nh5+ Kh2 Rf5 Kh3 Nf4+ Kg4 Qc6 Kg3 Qc7 Nd7+
6R1/b1rn1n2/1BRbbQ2/R1Pn3n/B3KNq1/1n3r2/1qN2k2/N1qNNn2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 c4 Ke5 g4 f5 e4 h5 b4 d5 b6 a5 g5 d3 b5 Kd4 b7 h3 e5 d2 e6 a4 e7 h4 e8R a3 g6 h2 b6 h3 g7 a2 Bg2 Be6 Qb3 d1Q+ Kf2 f3 Bf4 Qf6 Bg3 f4 Qa4 Bd6 Bf1 Nh6 g8N Nd7 b8N Nf7 b7 Rh7 Qb3 Ra3 Nc3 Qg7 Rc1 a1B Qc2 Qd2+ Be2 Qg4 Qg6 Qb2 Na6 Rg7 b8N Rh7 Ke1 Ke3 Qf6 d4 Nb4 d3 N8a6 d2+ Kd1 f2 Ne7 f1N Ng6 f3 Nf4 f2 Nf3 Rb3 Rg8 Rg7 Rg1 h1N Ne1 h2 Nc5 Rh7 Bh4 Nhg3 Bf3 Ra3 Nb3 h1Q Ra8 Nh5 Ra5 Rh8 Rg3 Rc8 Rg2 Rc7 Rg1 Qf5 Rg8 Qg4 Bg5 Nfg3 Bh4 f1N Nbc2+ Kf2 Bg5 Ne2 Bc6 Qhg1 Ba4 Qh1 Qg7 Qhg1 Bd8 Qh1 Qf6 Nd4+ Nce2 Rb7 Bb6 Rc7 Nc5 Rh3 Nb3 Rf3 Nc3 Kg1 Nc5 Nb3 Ke2 d1N Ncd3+ Ndc5 Nb4 Nde3 Nd1 Nd7 Kd3 Qh3 Nc6 Qh1 N6d4 Nd5+ Ke4 Qb1 Nf5+ Bd4 Nfe3 Qb2 Na1 B4c5 N3c2 Be3 Bd4 Bf2 Be5 Ba7 Bd4+ Kh2 Bb6 Kg3 Rc5 Qg1 Rc6 Qc5 Rb1 Qca3 c5 Qc1 Rb2 Qa2 Rb1 Qab2 Qd4 Qa2 Rb8 Na5 Rb5 Nb3 Rg8 Qab1 Ra5 Qbb2 Nde3 Kf2 Qh8 Nde5 Qf6 Nd7 Nd1+
4qrkR/RbN5/1bP1bbBn/3n1Nn1/2N5/BR2R1b1/nn1K1R1Q/q3r3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 f5 e5 Kf7 h5 f3 b6 g3 c5 d3 b7 g4 b5 f2+ Kd2 f4 c6 g2 h6 a4 b6 d4 h7 g3 Nf3 g1B Nc3 a3 Qe1 a2 Rb1 a1B Qd1 g2 Qe1 Na6 b8N Nb4 b7 Na2 Rh2 Qe8 Qe3 Nh6 Rb4 Bd6 Rb2 Be6 Qe1 Rf8 Nh4 f3 Be2 f1Q h8R f2 Rh7+ Kg8 Na6 Ra7 b8R Re7 R2b3 Bb2 Kd1 d2 Ra8 Bb8 Kc2 d1N Nf5 d3+ Kd2 Ne3 Ra7 Nd5 Bh5 Ba1 Ne4 Bd4 Kd1 d2 Ba3 Bb6 Kc2 d1N Kd2 Nb2 Qe2 Qa1 Bg6 f1B Nc7 Bgd4 Ned6 g1N Nc4 Nh3 Rf2 Ng5 Qh5 Be2 Qh3 Bg4 Qh2 Bc8 e6 Bf6 Qh5 Bb7 Qh2 Rd7 e7 Rd8 Na8 Bg3 Nc7 Bh3 Nh4 Be6 Nf5 Qf7 e8R Rd7 Rb8 Re7 Re3 Qe8 Rd8 Nf4 Rdd3 Nd5 Rb3 Bec8 Ref3 Re1 Rfe3 Be6 Rh8+
2N4B/n3Bb1n/b1qR1R1r/bn1BR2q/Q2r4/7N/KnRPq1R1/4nk1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Kd6 g4 Ke5 g5 Kd4 g6 h5 b6 c5 b7 a5 e5 f5 e6 c3 e7 c4 e8R a4 b5 c2 b6 c3 g7 a3 Re6 h3 Bd3 f3 Qe2 f4 Be4 f2+ Kf1 h2 Qd1 a2 Ke2 f1B+ Ke1 h4 Nh3 f3 Rf6 Qe8 Nf4 h3 Re6 Nc6 b8B Nf6 g8R Bc4 b7 Bb4 Nh5 Ra4 Re5 Bf7 Bh7 f2+ Ke2 Ba5 Na3 Na7 Ng3 Qc6 Be4 Rh6 Bd5 Nh7 Rf1 h1Q Nc4 h2 Nh5 Rb4 Rb1 a1N Nd6 Nb3 Rg2 Rc4 Bb2 c1N+ Kf3 Ra4 Nf4 Nd3 Ke2 Ne1 Nh3 Rc4 Ba3 c2 Rb2 Ra4 Qa1 c1N+ Kd1 Kd3 Rc2 Nd4 Bc5 Rc4 Qa4 Ndb5 Bc7 Rch4 b8R Ba6 Rb6 Rf4 Nc8 Rd4 Rfg1 f1Q Be7 Qf2 Rf1 Qe3 Rf6 Qf3+ Rge2 Qhg2 Bcd6 h1Q Ba3 Qh5 Bb2 Nb3 Bc3 Nc5 Kc1 Qgf1 Rg2 Qfe2 Qb3 Na4 Kb1 Nb2 Ka2 Qe3 Qa4 Qf2 Ref5 Ke2 Rfg5 Kf1 Rd6 Rd3 Bh8 Qfe2 Re5 Rd4 Rde6 Qa8 Rbd6 Qc6 Rf6+
n3RqBN/B4rB1/n4nbP/kq2N1bq/3B2RN/6K1/r2r1Q2/1q1n2Bq b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 a5 Kf2 e5 b4 g5 h4 d5 c4 Kd7 c5 Kc7 f5 g3+ Kg2 e3 h5 g4 h6 d3 f6 e2 c6 Kb6 c7 e1R f7 e4 Be2 e3 Qb3 d4 Bd1 d2 Qa2 d3 Rh2 e2 Bb2 a4 Bf6 a3 Nc3 Rf1 Bb3 e1Q Qb1 d1Q Ra2 d2 Qf5 Be7 f8B Nd7 B8g7 Qe5 Nb1 Qf8 Rh4 Ba6 Ra1 a2 Na3 Bb7+ Nf3 Be4 Rc1 a1N Bf7 Qc5 Bd4 Ngf6 Bg8 Nb3 Rc3 Qb1 Re3 d1N Qf4 Bg6 c8N+ Kb7 b6 Ka6 b5+ Ka5 b7 Nb6 b8B Qh5 Re5 Nc5 Nd6 Na6 Nf7 Ra7 Bg1 Na8 b6+ Qb5 b7 Rh7 Nh8 Rf2+ Kh1 g2+ Kh2 Bd8 Kg3 Rd2 Re8 Be7 Be5 Bd8 Kh2 g3+ Kh3 Be7 b8B Bd8 Bed4 Rf7 Bgf2 g1Q Bba7 g2 Kg3 Qh1 Rg4 Ra2 Nh4 g1Q+ Ng2 Qgf1 Bg1 Qfd3+ Qf3 Qdb1 Nh4 Rd7 Qf2 Be7 Ba1 Rdd2 B1d4 Bc5 Bb2 Be3 Ba1 Bg5 Nc4+ Kb4 Ne5+ Ka5 Nd3 Nd5 Bgd4 Rf7 Bg7 Nf6 Ne5 Qd7 Bb2 Qb5 Bbd4
2r1b2n/1k1bN1q1/1R1r2P1/B1q3N1/1q1qB3/bb1r1BR1/2q2NQ1/N1nN2K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 Kd7 c4 Kc7 g4 f5 e4 a5 e5 h5 g5 d3 c5 h3 c6 h2 g6 h4 e6 a4 e7 d4 e8B h3 Qe1 a3 Bd2 f3 Qe6 f4 Qd5 a2 Nc3 Nh6 Nge2 Ra3 Bc1 d2 Ng3 d1R Bd7 d3 Rg1 h1B Bb2 d2 Bg4 h2 Bg2 Nf7 Rc1 a1Q Nge4 Na6 Ng5 Nc5 b6+ Kb8 b5 Bd7 b7 Nb3 Rc2 Nc1 c7+ Ka7 b8N Qb1 Qb3 Kb7 c8N Qa5 b6 Qb4 Qa4 Rg8 Bh5 Nh8 Nc6 Bd6 N8e7 Rc8 Nd4 Qc5 Nce4 Rd3 Bc3 Qbb4 Qa2 Be8 Nf5 Be7 Bf1 Bg2 Ne3 h1Q Bg4 Qh7 Nb3 Bh3 Rg3 Qg7 Bg2 Qbd4 Bh5 Bhd7 Ba5 Qcb4 Rc6 Qbc5 Qa4 Qc2 Qa2 Ba3 Na1 Qcc5 Bf1 Qdb4 Kg1 f2+ Kh2 f3 Bg2 f1B Kg1 Rd6 Nf2 Qbd4 Bg4 Qdb4 Bf5 Qbd4 Be4 Bc4+ Kh2 Bb3 Qc2 Re1 Ned1 Re3 Kg1 Rd3 Qb2 Kb8 b7 Ka7 b8N Kb7 Na6 Qdb4 Nc7 Qc2 Ne3 Qbc5 Ncd5 d1Q+ Kh2 Qdd2 Ne7 Qdb4 Ned1 Qgd4 Nh1 f2 Bgf3 f1Q+ Nhf2 Qh3+ Kg1 Qh6 Qa2 Qhg7 Qb2 Qb1 Qe2 Qbc2 Qf1 Ba2 Qg2 Bb3 Rb6+
kr3b1n/1NB1N1P1/1B1r2bK/R4Qrn/N3R3/2q4r/1bB2rn1/qb1NN3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 g4 h5 c4 a5 e4 d5 b4 Kd7 g5 Kc7 e5 Kb7 c5 a4 e6 f3 g6 f4 b6 a3 e7 a2 e8N f2 b5 h3 g7 f3 Nc7 h2 Nh3 d3 Ke3 d4+ Kf4 h4 Ng5 d2 Bh3 f1R Na6 f2 Nf3 d3 Ne1 Qc7+ Kg5 Nc6 Nb8 Bf5 Nc2 Rg1+ Qg4 d1R Nc3 f1R Na6 Nce7 Be3 d2 Bd4 Rd8 c6+ Ka8 Nc5 Ng6 Bf2 Qe5 c7 Nf6 c8N Rb1 Nd6 d1N Bd4 Ne3 Bg2+ Be4+ Qf5 Rb2 Re1 a1B Re2 h3 b7+ Ka7 b8B+ Ka8 b6 Rf4 Bc7 Rf2 Nb4 Rh6 Re1 Rh4 Nbd3 Nh5 Kh6 Rb4 Bf3 Rg5 Bd1 Bb2 Qf6 Nh8 b7+ Ka7 b8N Ka8 Bb3 Bg6 Nc6 Rbb8 Ndb7 Rd6 Ne7 Qg3 Rhg1 h1B Qf5 h2 Re2 Bd5 Bc2 h1Q Ra1+ Ba2 Ree1 Ng2 Re4 Qc1 Nd1 Rh3 Ne1 Qc3 Be3 Ba3 Bd4 Q1b2 Be3 Bb1 Ra2 Qa1 Bd4 Ra6 Be3 Bb2 Ra5 Qa2 Na4 Qa1 Ba7 Rd6 Bab6+
1QB1Nkq1/4b2n/rrPb2Rr/rN1bB1R1/5bKn/1RR5/Rrb4r/3B4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 h4 f5 b4 a5 c4 d5 e4 a4 h5 f3 Kg3 d3 b6 f4+ Kh2 d2 c5 a3 e5 a2 e6 d4 c6 f2 b5 f3 Kg3 d3 e7 Ra6 b7 Rh6 b6 Nf6 Bb2 Be6 Qb3 d1B Bc1 d2 Qe3 Nh7 Qd3 Bc2 Bg2 f1R Ne2 d1R Bf4 f2 Rg1 Nd7 b8R Ne5 b7 Rd2 Bf3 Ng6 Qd6 Nh4 Nec3 Bd5 Na3 Rb1 Ne4 f1R Be5 Rbb6 Nb5 Rb1 Bd1 Rb2 Nf6+ Kf7 Qb4 Rh2 e8B+ Kg7 Bg6 Bd6 Bf5 Qg8 Bc8 Kf8 Ne8 Ra5 Rc1 a1R Ra8 Raa6 b8R R1a5 Rg2 Be7 Rb7 Bd6 Rg7 Be7 Rg6 Bd6 Kf2 g3+ Ke3 g4 Kf4 Be7 Rg1 g2 Ra7 g3 Kg4 Bce4 Rc3 Bd3 Qd6 Bc2 Qb8 Bd6 Re1 g1B Ree3 g2 Rb3 Rh3 Rec3 Bh2 Ra8 g1B Rg5 Rf6 h6 Bf4 Ra7 Bgc5 Rg6 Ng5 h7 Rh2 h8R Nh7 Rg5 Rh6 Rg6 Ng5 Rhh7 Ba3 Rhg7 Nh7 Rg5 Be7 R7g6 Bad6 Qa8 Raa2 Qb8 R6a3 Ra4 Ra1 Rac4 Raa6 Rcb4 R1a5 Ra4 Rh3 Ra1 Rh2 Ra2
1kbq4/NQR4r/3BN1K1/qn1b3P/1b2r2R/1bRB2N1/nR3R2/nn2rq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 Kd7 b4 Kc7 h4 a5 c4 f5 c5 f3 c6 g3 h5 g4 e5 f4 e6 f2 e7 a4 e8R f3 Qd2 g2 Re1 g3 Ne2 g1R Qa2 g2 Rh3 a3 Rh4 Rh7 Nbc3 Na6 b6+ Kb8 b5 Nf6 b7 Ne8 Ng3 Nb4+ Kd2 d3 Ke3 d4+ Ke4 d2 Re2 d1N Bb2 d3 Qf7 d2 Rc1 a2 Ba3 a1N Nd5 Na2 Bd6+ Nc7 Rc3 Ra4+ Ke5 Rh1 Nf4 g1Q Ne6 Re4+ Kf5 Be7 Kg6 Qg2 Rb3 Ndc3 Qg7 Nb1 Rc3 d1B Qf7 Ka7 b8R Bb3 Rb7+ Ka8 b6 Nb5 Rc7 Kb8 b7 Bd5 Be5 Bb4 Bd6 Qh3 Rec2 Bb3 Bc4 f1Q Bd3 f2 Rd2 Qe1 Re2 f1B Rf2 Qd2 Qg7 Bg2 Qd7 Ka7 Qf7 Rhe1 b8R+ Bb7 Qe7 Bh1 Qf7 Qf1 Rcc8 Ba3 Nf4 Rb4 Bf5 Nd4 c7 Bc2 Bd3 Bhd5 Rb3 Ba6 Rb2 Bcb3 Ne6 Ra4 Rb5 Qa5 Rc5 Bab7 Rc1 Rc4 Rc3 Bb4 Rb8 Ba6 Rb7+ Ka8 c8N Nb5 Rd7 Rce4 Na7 Bc8 Rb7 Qh1 Qd7 Qg1 Qc6 Qf1 Rc7+ Kb8 Qb7+
qq1RNq1b/Nrqnr1R1/r1BB1Q2/6rn/2b1N1Rn/2nP4/8/1kRR3K b - - 0 1 illegal: No possible last move, all moves rejected
2R2nRN/1BK5/b5B1/3Nn3/B2r1N1Q/1n2B2p/kbb1r1P1/qbbr1qB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 a5 b4 f5+ Kd3 d5 e4 a4 e5 f3 b6 f2 c5 a3 b7 f4 c6 f3 c7 h3 b5 h4 b6 a2 Ne2 h2 Bb2 h3 Bc1 Nd7 b8B Nh6 b7 Nf7 Bb2 Bh6 Nec3 Bc1 Nb5 Re8 N5c3 Ra4 Qe1 Nf8 Ba7 Qf6 b8N Qg7 Rg1 h1Q Nd7 Rc4 Qe4 Ba6 c8B Re7 Be2 f1N Bb7 f2 Bh5 Nd2 Qh4 f1B+ Ne2 Nb3 Nc3 Re8 Rb1 a1B Bg6 Re7 Ba3 Bab2 B3c5 Qf6 Nb5 Qf2 Nf6 Qe1 Bcb6 Qa5 Nd6 Qa1 Ba5 Re8 Bd2 Re7 Be3 Ra4+ Kc2 d3+ Kd1 Nd2 Bc8+ Nd7 Bh6 d4 Bf4 Bc3 Rb8 B3b2 Bb7 Rc4 Rg8 Nf8 Ke1 Rb4 Ng3 Be2 Rf1 Nd7 Kf2 Bg4 Ngh5 Bf5 Re1 Nf8 Kg3 Qf1 Re4 Nb3 Re3 d2 Rc3 d1B Rc8 d3 Bg1 d2 Bh6 Re4 Bf4 Re2 Bfe3 Bb1 Kg4 Re8 Nf4+ Ke7 e6 Bdc2 Qf2 d1R Qh4 Nd8 Nf7 Nc6 Nh8 Kd6 e7 Rd8 e8B Ne5+ Kg5 Nd4 Bec6 Kc5 Bce8+ Kb4 Ba4 Nec6 Kg4 Nb3 Kg5 R8d4 N6d5+ Ka3 Kf6 Ne5 Ke7 Ka2 Kd6 Nd3 Kc6 Ne5+ Kc7
R1r1r1bN/1KR1nq1R/1n3BQ1/1Nr3nB/1b2rN1N/4pb2/q1kr1P2/4N3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 a5 b4 d5 c5 e5 b6 h5 c6 d3 Kc3 a4 b5 e3 c7 e4 Kd4 d2 b7 a3 b6 e2 g5 Kf5 g6 e1R g7 h3 Bd3 a2 Qe2 d1R Qd2 h2 Qb2 h4 Qd2 h3 Ne2 Qe8 Qh6 Nd7 b8N Ne7 g8N Qf7 b7 Nb6 Kc5 d4 Na3 Rd2 Na6 Be6 Bb2 Re8 Rc1 a1Q c8N Qa2 b8R Bb3 Bc2 d3 Ra8 e3 Qf6+ Ke4 Nc7 Rh5+ Kd6 Rc5 Nf4 Rg1 Ba1 Rg4 Bd1 Rdc2 Nh6 d2 Be2 d1R+ Bd4 R2c3 Nc2 Rd2 Nb5 Rh4 Bh5 Be6 Ng6 Kd3 Nf5 Re4 Nh8 Bb3 Nh4 R3c4 Rhe1 h1B Qg6 h2 Bf6 Bf3 Red1 h1N Re1 Ned5+ Ne7 Ng3 Rh1 Rcc8 Rh3 R4c5 Rh2 Nc7 Rh3 Ne6 Rhh1 Ng5 Rh3 Bd5 Ne1+ Ke2 Rc2 Kd1 Rh2 Ne2 Rc3 Nd4 Rc4 Nc6 Rh1 Rcd8+ Kc7 Rc8+ Kb7 Be6 Rd4 Kc1 Rd7 Bb3 Nd5 Ne7 Nf4 Kd1 Ned3+ Kc2 Rh2 Qh7 Rh1 Bg8 Rc7 Qhf7 Ne1+ Kb1 Ra4 Re5 Ra8 Nf5 Nhg2 Bb4 Bg4 Rc5 Rh7 Ne7 Bh5 Kc1 Nh4 Kd1 Ned3 Kc2 Ne1+
1qrb2B1/3rb3/2n2Q2/krN4B/2bR1NBr/Pp1Rq2n/3nr1B1/2B2R1K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 d5 Kg2 Kd7 e4 Kc6 c4 Kb6 h4 f5 e6 g5 h5 b3 e5 g3 c5+ Ka5 c6 b5 e7 f4 e8B b4 e6 f3+ Kh3 f2 Kg2 b2 h6 g4 c7 d3 h7 d4 a3 d2 e7 d3 Bf7 Nh6 e8B Nc6 Bg8 Be7 Ne2 Ba6 c8B Bc4 Bcd7 Rc8 Qb3 d1R Nbc3 b1R Rg1 d2 Qc2 Nf7 Rh1 Ng5 Nd5 Nh3 Nc7 Re1 Qb2 d1R Nd4 Re2 Nce6 Qb6 Ra2 Qb8 Nc5 Rdd2 Nf5 Rd3 Bde6 Rd7 Qf6 Rb3 Rg1 Bd8 Kh1 Rb1 Bg2 f1N Bgd5 Nd2 Ne3 Rb3 Ng2 Be7 Nf4 g2+ Kh2 Rb2 Re1 g1B+ Kh1 g3 Bh5 Bd4 Beg4 g2+ Kh2 Bf2 Rf1 Bh4 Be4 Rb1 Rb2 Bg5 Rb3 Bh4 Rd3 Bd8 Qc3 Bhe7 Qf6 Rb3 Kg3 g1Q+ Bg2 Qe3+ Kh2 Rb7 Kh1 Rb5 Rd5 Rd3 Rd4 b3 B8d5 Rg8 h8R Rg6 Bg8 Rh6 Re4 Rd7 Rd4 Rd6 Rh7 Rd7 Rg7 Rh7 Rg5 Rh8 Rgd5 Rh6 Rd3 Rh8 R5d4 Rh6 Be8 Rh4 Beh5
KR2N2r/n5B1/4n3/q1b1r1q1/p4q2/kbq2R1P/QR1r1R1R/B1Nq1Bn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 f5 e4 a5 b4 g5 h3 d3 c3 a4 b6 d2 Kb5 f3 b7 f2 c4 g3 Qb3 d1R Nf3 g2 Nd4 g1N Nc3 g4 Rh2 g3 Na2 f4 Qb1 f3 Ne6 g2 Ng7 Na6 b8B+ Nc7+ Kb6 Ra5 b5 Rd2 Bb2 Ne7 Nc1 Nc6 Ra2 Na7 Ba1 Qf6 Rb2 Qc3 Qc2 Bb7 Qb1 Bd5 c5+ Ke5 c6 Kd6 Kb7 Kc5 e5 Ne6 b6 Bb3 c7 Kb4 c8R d5 Rc6 d4 Bc7 d3 Ka8 Bc5+ Ne8 Ka3 b7 Rb5 b8R Ra5 Be2 f1Q Bd8 f2 Bf6 Qd1 Bf1 Qh5 Bg7 Qg5 Rc7 Qd8 Rf7 Qb6 Be2 f1Q Rf3 Rb5 Rf2 Qba5 Rf3 Qf2 Bf1 Qe3 Rf2 Qf4 Rf3 Rc2 Rf2 d2 Rf3 d1Q Rf2 Ng5 e6 Rd2 e7 Ne6 Rd8 Ne2 Rd3 g1Q Re3 Qgg5 Ref3 Nf8 Nc7 Ng1 e8R Ne6 Rb8 Be7 Ne8 Re5 Be2 Bb4 Bf1 Bc5 Qa2+
4NNK1/2bq2R1/1rb1N1B1/rnQPB1N1/1kn3pq/6R1/1Nnn3r/2Bq1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 b4 a5 d5 g5 b6 f3 Ke3 g3 b5 a4 h5 g2 h6 a3 b7 a2 h7 f2 b6 f4+ Kf3 c3 Qc2 g4+ Ke2 c4 e5+ Kc5 e6 f3+ Ke3 Bd6 Ke4 Nf6+ Kf5 Nfd7 Kg6 Nc6 Kg7 Na7 b8B Bc7 e7 Bb7 e8N Kb4 Bh6 Ne5 Rh2 Qh4 Nh3 g1Q Bd3 f1N Ng5 f2 Ne6 Bc6 b7 Nb5 Na3 Nd2 Rh3 f1N Rg3 Ra5 Bg6 Qa7 Re1 a1N Rc1 Rf8 h8N Rf2 Nf7 Re2 Kg8 Rh2 Qa2 c2 Nfg5 c3 Nc4 Ra4 Nb2 Nec4 Re1 c1Q Re2 c2 Qa3+ Ka5 Qe3 Qd1 Qc5 c1R Rf2 Ra2 Rf7 Nc2 Re7 Rb1 Rg7 Bd8 Be5 Bc7 b8N Ra3 Qd4 Kb4 Nd7 Ra5 Ndf8 Qb7 Nf7 Qc8 Bhf4 Qd7 Nfg5 Rba1 Qe3 Ra6 Qg1 Rb6 Be3 Ra5 Qf2 Nb3 Bc1 Nbd2 Qc5#
3BK1B1/nB1n3R/1nqpNq2/2R1b3/1k6/r1n1r3/1rR1RnNP/b3Q1Rb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 a5 e4 f5 c4 g5 b6 d3 b7 d2 b3 g3 Qe1 d1N Bh3 f3 Ra3 a4 Qf1 g2 Nc3 g4 Bf4 f2 Nce2 g3 Bg5 f4 Nd4 f3 Be6 Qb6 Qe1 f1N Ra2 f2 Ngf3 g1N Nh4 a3 Ng2 Nf6 Bg8 Ne2 Rg1 Rh3 Rc2 Nec3 Ne6+ Kb4 c5 a2 c6 a1B c7 d6+ Kf5 Ra3 Kg6 Nc6 Kf7 Nd7 b8R Be7 e5 Bb7 c8B Nfe3 Ke8 f1Q Bh4 Ba8 Bb7 Nd5 Rc8 Na7 Rc5 Bf6 Bg5 Bg7 Bd8 Qf4 Nc7 Nf2 e6 Qd4 e7 Be5 Ne6 Qb5 Nh4 N5b6 Ng2 Ka5 b4+ Ka4 Bf3 Qc6 b5 Kb4 Bd5 Qh4 Bf3 Qf6 Be4 Nbc8 b6 Bb7 Bd5 Ba8 b7 Ncb6 b8R Bb7 Nh4 g2 Rc8 Ba8 Rc7 Re3 Bf3 Qb5 Bb7 Qc6 Rh1 g1R Ng2 Rf1 Rg1 Qf4 Qe2 Rb1 Qe1 Qg5 Kf7 Qh6 e8R Rb2 Re7 Qf6+ Ke8 Qb5 Ba6 Bf3 Bb7 Qc6 Rh7 Bd5 Rd2 Nce4 Rcc2 Nc3 Re2 Bf3 Ngf4 Bh1 Ng2 Qd5 Rc5 Qe4 Rc1 Qc6 Rcc2
1r1NbBr1/2rN2pb/5q1q/k1N1b1r1/P1R3n1/1q1rB1n1/1RN1B1K1/6NQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 f5 h4 b5 a4 c5 e4 Kc7 d6+ Kb6 e5 c4 d5 g3+ Kf3 b3 e6 b4 e7 c3 e8N b2 h5 g2 h6 c2 d7 b3 h7 Ne7 d6 Nbc6 Nc7 Ne5+ Kf2 f3 Bb5 f4 Qf1 Nf5 Bc6 Qg5 d8N Rg8 h8N Bd7 Bd5 Ng4+ Ke1 f2+ Ke2 f3+ Kd3 Ka5 Ke4 Be8 d7 Rb8 Be3 c1R Na3 b1Q+ Nc2 b2 Rh4 Bd6 Ng6 Qh6 Ra2 Be5 Na6 Rd1 Bf7 Rd3 Nc5 Qd1 Bc4 b1B Na3 Qc2 Nf8 Qb3 Rb2 Bc2 Qa1 f1R Ba6 f2 Kf3 Bb1 Nc2 Ng3 Bb5 Rfd1 Bc4 Rc3 Bf1 Rdd3 Be2 Nf6 Re4 Ng4 Rc4 Rd4 Na3 Bh7 Nc2 Rd6 Qd1 Rc6 Qd5 Rd3 Qe4 Nf6 Qh4 Rc7 Qh1 Ng4 Nde6 Rd6 d8B Rd7 Be7 Rd3 Nh3 g1R Nd8 Rg2 Nfd7 Rg1 Bf8 f1Q+ Nf2 Qa1 Nh3 Rf1+ Kg2 Rf5 Rb1 Rg5 Ng1 Qd4 Rb2 Qdd6 Ne4 Qdf6 Nec5
1B2bn2/N1Q1P2N/1qq1n3/nR2NK2/6BB/b1r3R1/Np1n1n1b/2Nr2rk b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 b5 a4 h5 g4 c5 d4 f5+ Kd3 f3 e4 b3 g5 b4 g6 f2 g7 b2 a5 f4 a6 c4+ Kc2 f3 a7 h3 Ra2 h2 Ra5 h4 Ra4 c3 Kd3 c2 Nh3 b3 Rg1 h1N Nc3 b1R Rg2 b2 Bg5 c1B Be2 f1N Qc2 f2 Ng1 h3 Bg4 h2 Bh4 Nc6 Ra5 Nge7 g8N Ng6 Rb5 Nfg3 Na2 f1N Ne2 Nh5 Rg3 Na5 Nf6 Nd2 Nh7 Ng7 Ke3 Rb8 a8N Qb6 Nc7 Nf2 Qc3 Ne6 e5+ Kd7 d6 h1Q Qc2 Rg8 Qc5 Qhc6 d5 Ndb3+ Kf3 Bf4 Nec1 Bb7 Qc3 Rc8 Qc4 Be7 Qc2 Nf8 Qc4 Nd3 Ke4 Nf2+ Kf5 Nd2 Qc5 Kd8 d7 Ra1 Re3 Bh2 Bg3 Bd6 Qc3 Ke7 d8B+ Kd7 Bdh4 Ba3 d6 Rb1 Bf4 Ba6 Rg3 Rg7 Rc5 Bb5 Rd5 Ba4 Nb5 Ra1 Na7 Rg6 Ne2 Rd1 Rb5 Qcb7 Rh3 Rc5 Rb3 Rc4 Bh5 Nc5 Nec1 Rgg1 Rg3 Qh1 Bg4 Qf3 Nb5 Kc6 e6 Kd5 e7 Nce6 Na7 Be8 d7 Qh1 d8N Qg2 Qe3 Rc3 Bb8 Qh1 Qh6 Kd4 Nf7 Qhc6 Qf4+ Kd5 Qc7 Kd4 Rg2 Ke3 Bh3 Kf3 Rb5 Nd3 Rg3+ Kf2 Bg4 Kf1 Ne5 Nf2 Rf3 Kg2 Rd3 Kh1 Rg3
Nn1bBKN1/3PnN2/2r5/pr1Rbqqk/nN1b1Q2/2NR2BR/8/2bbr3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 d4 c5 b4 a5 e4 f5 h4 Kf7 d5 Kg6 h5+ Kh6 e5 g3+ Kf3 c3 e6 g2 e7 c4 e8N c2 b6 c3 b7 Ra7 b5 Bb4 d6 Qf6 b6 Qd8 Bb5 Ne7 Qd2 Ra6 Ne2 g1B Ng3 Bd4 Ne4 Be5 Nc7 Re8 Ba3 c1N Na8 c2 Nbc3 Ne2 Nf6 c1B Rh3 Be6 Bb2 Bb3 Ra3 Bd1 Qd4 Rg8 Be8 Rh8 d7 g4+ Kf2 f3 Ng8+ Kg5 h6 f4 h7 Bbd6 Rb3 Bf6 Rb5+ Bde5 Rd5 g3+ Kf1 f2 Kg2 Bg7 Kf3 f1R+ Ke4 g2 Qa4 g1B Ba1 Nbc6 b8N f3 b7 f2 Rdd3 Rb6 Na6 Rb5 b8R Bgf6 Nb4 Re1 Rc8 Nb8 Rc5 f1Q Rcd5 Bd4 Bb2 Bf4 Bc1 Kg4 Be3 B6g5 Bf2 Bc1 Bh4 Qf6 Qb3 Qf7 Qc4 Kh5 Qc7 Bef6 Qf4 Bfe5 Nh6 Rg8 h8N Rg6 Ng8 Qf8 Nf7 Rc6 Nca2 Ng6 Kf5 Nc3 Rd6 Qde7 Rd5 Na4 Nc3 Qc5 Rhe3 Bd8 Rh3 Rc7 Ke6 Rc6+ Nd6 Qh6 Kf7 Ne7 Nba2 Qe6+ Kf8+ Qg6 Nf7 Qf5 Nb4 Qg5 Ne2 Qc2 Nc3 Qb1 Rdf3 Qbg6 Rd3 Q6f5 Bg3+
2qbRk2/r2p1n2/N1Nrn1R1/2PqQr2/K2n2bN/3B1Nnn/b7/2NB2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 c4 a5 Kc2 f5 Kb3 a4+ Ka2 a3 Kb3 h3 e4 f3 g4 d3 b6 d2 c5 h4 b7 f4 g5 f2 e5 f3 e6 a2 g6 h2 g7 h3 e7 Nh6 g8B Nc6 b8N Nf7 Bc4 f1R Qe1 f2 Bd3 Ba6 Ka4 Nd4 b4 Bc4+ Na6 Qc8 b5 Ne6 b6 Ra7 b7 Rh6 Nc3 d1N Rb1 a1N b8N Nb3 Na2 Nbd4 Nc6 Bg7 Be3 Bf6 Nc1 Ba2 Nf3 Bh4 Rg1 h1B Bb5 h2 Rg6 Bg2 Bd3 h1Q Rb2 Bh3 Re2 Bg4 Qc3 Bf6 Qb2 Qh5 Qb8 Qd5 Qe5 Rh5 Re1 Rf5 Re2 Re1 Bh7 f1N Bg1 Bh4 Bc2 Nf2 Bd1 Ng3 Re3 Nfd8 Re2 Kf7 e8N Kf8 Nd6 Nf7 Re4 Bd8 Re3 Rg5 Nf5 Nh3 N5h4 Rf5 Rg5 Rf6 Bd3 Rf5 Rg6 Re2 Re4 Rd2 Qf4 Ng7 Re7 Nge6 Qd6 Rb2 Qe5 Rb6 Na5 Rd6 Nc6 Rb7 Rg7 Rc7 Rg6 Ra7 Re8+
1b1NqRK1/3Q2n1/1r1nNB1b/q2k1RR1/1nq3P1/3r1p1B/1rb4B/1R1b2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 Kf5 h5 g4 f3 c4 a4 e4 d3 b4 f2 b6 h3 b5 h2 b7 d2 b6 h4 Qe2 d1B Qa2 h3 Nd2 a3 Qc2 a2 Be2 f1Q+ Ngf3 Nf6 Rb1 a1B Rb5 Nh5 Nb3 Qe8 Bb2 Bh6 Bf6 Be5 Nc5 Ra2 Ne6 Na6 b8R Nb4 b7 Rb2 Rg1 h1N Nd8 h2 Qa4 Nf2 Ng5 h1Q Nge6 Qhh3 Qa7 Qc3 Bf3 Qa3 Bg2 Qa5 Bh3 Bg3 Bh4 Ng7+ Kf6 Qd3 Rg5 Qdd5 Ra8 Qdc5 b8B+ Qcc7 Rf5 Bb7 Rg5 Bc6 Qb7 Bca4 Qb5 Bac2 Ra6+ Qb6 Ra1 Qa5 Rb1 Rf8 Qa4 Rg8 Nf8 Bh2 e5+ Kc5 e6+ d5 e7 Bf4 Rg6 d4 Qd7 d3 Bg5 d2 Nfe6+ Kb6 Bh4 Qc6 c5+ Kb5 Rg2 Kc4 Rg1 Qca6 Bd6 Kd5 c6 Qc4 c7 Rf8 c8R Rh8 Qa4 Rf8 Be5 Rh8 Bg3 Rg8 Bc3 Bb8 Bh2 Qec6 e8R Rf8 Nb7 Bf3 Rcd8+ Qd7 Ng5 d1R Ree1 Rd3 Ref1 Bfd1 Re8 Qdb5 Nd8 Ne4+ Ke7 f5 Bce5 Rf6 Rf8 Ra6 Kf7 f4 Kg8 Rc6 Nge6 Rb6 Bf6 Qe8 Qd7+ Nd6 Rg5+ Nf5 Re1 f3 Re4 Rbb3 Rf4 Rb2 Be5 Ng7 Rf6 Rb7 Rff5 Rb6 Bf6+
1b3q2/2b4K/qnQ1rr1n/1R4k1/Nr2NNp1/1rNnB1NB/2bP4/2RqR3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 e4 Kf6 h4 g5 b4 a5 h5 c5 b6 g3+ Kf3 g2 h6 a4 b5 g4+ Ke2 c3 e5+ Kg5 e6 f5 h7 a3 e7 a2 e8R f3+ Ke3 c4 b7 f4+ Ke4 c2 b6 f2 Qe2 f3 Ke5 c3 Ba3 c1R Qd1 c2 Ne2 g1B Nbc3 Rb1 Bh3 f1R Qc1 f2 Bc5 Ra3 Ng3 Rb4 Rb1 a1Q Rb3 Bh2 Be3+ Kg6 Rg1 Nd7+ Ke6 Bg7 b8N Be5 b7 Nh6 Na6 Bc7 b8N Nb6+ Nd7 Rg8 Re7 Qf8 Nc5 Ba6 Rh1 Bd3 N5a4 Re1 Ndc5 f1Q Rb2 Rab3 Re8 Qe2 Rf1 Qd1 h8N+ Kh7 Ng6 Bb8 Nh5 Bhc7 Ngf4 Rg5 Rc8 Rf5 Ng3 Re2 Re1 Qa3 Qb1 c1N Qc2 Rf7 Rb1 Bg6 Qe4 Nd3 Qc6 Kg7 Rc1 Bh7 Rd8 Be4 Rd5 Rf5 Ng2 Kg6 Nf4+ Kg5 Re5 Nb2 Rd5 Bc2 Re5 Nd3 Rd5 Qc8+ Ke7 Qa6 Ke8 Re5+ Kf8 Rf2 Kg7 Rf1 Kh7 Rf3 Nb7 Rf1 Rb5 Rf2 Nbc5 Re6 Nfh5+ Rff4 Bf2 Rff6 Nf4 Qc8 Be3 Qf8 Nb2 Qa5 Nba4 Qa6 N5e4+
1nq1n1B1/2k1q3/3p1b1r/1KR1Q1r1/BNR5/3BN3/2nPrqqb/BbBN4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 g4 f5 c4 h5 e4 a5 Ke2 f3+ Kd3 f2 g5 h3 c5 a4 Kc4 a3 e5 h2 b6 a2 e6 f4 e7 h4 c6 h3 b7 b3 g6 f3 c7 b2 g7 Ra5 Qe1 Rg5 Na3 b1Q Qe2 Qh7 Qe3 Nf6 Bg2 f1N g8N f2 Qe5 Ne3+ Kb5 f1Q+ Ne2 Nc2 Bd5 Qf2 Nc4 d6 Nc3 Kd7 Nd1 Bh6 Nce3 Ne8 Bc4 Bg7 Bd3 Bf6 Rb1 a1B Rb4 Qhh4 Rc4 Rh6 Rf1 h1R Rc5 Qe1 Rf4 h2 Re4 Qef2 Rec4 Na6 b8B Re1 Ba7 h1Q Bb6 Nb8 Ba5 Re2 Bc3 Qhg2 B3b2 Ng7 Bc3 Bb7 e8B+ Kc8 Bd4 Be4 Ne7+ Kb7 Bdb2 Qc8 Nc6 Bh7 Bf7 Ne8 Bg8 Bf5 Ba3 Bc3 Bab2 Bh7 Ba1 Bb2 Qe4 Bbe5 Qd5 Bh2 Qe5 Qcg4 c8B+ Kc7 Ba6 Qd7 Bc8 Qe7 Bce6 Qhh3 Bd5 Qc8 B5e4 Ne1 Bc2 Bf5 Ba4 Nc2 Bd3 Be6 Rc3 Ba2 R3c4 Bb1 Nb4+
R2bq3/K1kr2p1/1nrBb1Q1/2n3bR/2BR1Pnq/5N2/1N2q3/2NrNN1n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 f4 e5 c4 d5 h4 Kd7 b4 a4 h5 d3+ Ke3 a3 h6 d2 b6 g3 b7 g2 b5 a2 h7 Qg5 c5 Kc7 c6 Be6 Ba3 Nh6 Bc4 Be7 Rh5 Ra6 Qc2 d1R Ne2 Nd7 b8N Qh4 Nd2 Nb6 Nc1 Bg5 Nd7 Rd8 Nc5 Rd7 h8R g1N Rb8 Ne2 Ra8 Ng3 Nf1 Nh1 N5d3 Bd8 Rb1 a1N Rb4 Nb3 Ne1 Nc5 Qg2 Bg5 Qg3 Bd8 Qg6 Bg5 Bd3 Bd8 Rd4 Bg5 Bc4 Ng4+ Ke2 e3 Kf3 Kd6 c7 e2 c8N+ Kc7 Nd6 Bd8 Bb3 Bg5 Nc4 Bd8 Nb2 e4+ Kg2 e3 Kf3 Bg5 Bc4 Bd8 Ned3 e1Q Bb4 Qd2 Ne1 e2 Ba3 Qa5 Bb4 Qa4 Ba3 Nc8 Bb4 Rc6 b6+ Kd6 b7 Kc7 b8N Nb6 Nc2 e1B Ba3 Bd2 Ne1 Ba5 Ke2 Bg5 Bb4 Re7 Nd7 Qb5 Ne5 Rd7 N5f3 Qa4 Rd2 d4 Ba3 Nf6 Bb4 d3+ Ke3 Qb5 Bd5 Ng4+ Kd4 Qa6 Ba3 Qc8 Bb4 Qe8 Ba3 Nba4 Kc4 Nb6+ Kb5 Rd8 Bc4 Rd7 Re2 d2 Re4 Bc3 Bb4 Bcf6 Rd4 Bd8 Ncd3 Rb1 Nc1 d1Q Ba3 Qe2 Bb4 Nca4 Ka6 Nc5+ Ka7 Ra1+ Na2 Rd1 Nc1 Nb3 Bf8 Nc5 Bd6+
r4B1b/1B2N3/2r1Rn1n/1N1RQ2b/2nB2r1/1n1KbR1R/2P1pqR1/n4n1k b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kf6 g4 a5 b4 d5 b6 h5 g5+ Kf5 b5 e5 g6 e3+ Ke2 Kg4 b7 Kg3 f5 h3 b6 d3+ Ke1 e4 f6 h2 g7 d4 f7 d2+ Ke2 a4 Ba3 h4 Nc3 h3 Qb1 d1N Qb3 d3+ Ke1 d2+ Ke2 Qf6 Qd5 Nd7 b8R Nb2 b7 d1R Rb1 Rh4 Qc5 Rd6 Bb4 a3 Rc1 a2 Qh5 a1N Nb5 Nc5 Nf3 Ncb3 Ng1 Nc4 Qg6+ Bg4+ Nf3 Nh6 g8R Bg7 f8B Bh8 Qf5 Re6 Bg7 Bh5 Bg2 Qd4 Rhe1 h1N Rcd1 h2 Rbe8 Nf2 b8R h1N Rg1 Nfg4 Ne5 Kh2 Nc6 Rd6 Re6 Ng3+ Ke1 e2 Rbf8 Nf1 Bc3 Ncd2 Ne7 Rda6 Bf3 Nc4 Rg2+ Kh1 Qf4 Nc5 Rff6 Ncb3 Bf8 Qg1 Qe5 Rd6 Rf5 Rb6 Rd7 Nf6 R8g3 Qc5 Ba5 Rg4 Bd2 Nfe3 Kf2 e1B+ Ke2 Nf1 Bc3 e3 Kd3 e2 Bb7 Rc6 Rff3 Qf2 Bd4 Bd2 Rd5 Be3 Rh3+
4r2Q/R2Bq3/3bbB2/K2N4/Nnb1rB1p/1BR1NnP1/b2k2r1/3bbnB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 b4 Kf5 g3 Ke4 e3 h5 b6 f5 c5 a5 b5 d5 c6 f3 b7 h3 c7 d3 Kc3 f2 b6 f4 Qg4 h2 Be2 f1B Qh3 d4+ Kb3 f3 Ka4 h4 Bd2 f2 Kb5 a4 Ra3 Qe7 Rc3 a3 Bd1 a2 Nf3 a1B Ne1 Ra4 Ng2 Nh6 Bb3 Nc6 b8B Nf5 b7 Nb4 Ba7 Be6 b8B Kf3 c8N Ke2 Bc1 d2 e4 d1R e5 d3 Ne3 d2 Bb2 Nd4+ Kb6 Ke1 Qf5 Ra2 Qh7 Nf3 Rg1 Rg8 Qh8 h1B Rg2 Ke2 Kb5 Re1 Nb6 d1B Na4 Rg4 Ka5 Re4 Rh2 Bhg2 Bd6 Bgh3 Bac5 Bc4 e6 Bfg2 Bf4 f1N Rd3 Bg4 Bf6 Bc3 Rd7 Bd2 Ra7 Kd3 Bb6 Re2 Bbd4 Be1 Nc3 Kd2 Ncd5 B2h3 Rh1 Bh5 Bc5 Bf7 Rg1 Qd8+ Bb6 Bd6 e7 Bhe6 e8B Qe7 Bd7 Rb2 Bc2 Ba2 Bb3 Rc2 Rg2 Rc8 Rh2 Re8 Rf2 N3h2 Rf3 Rg2 Ndc3 Bc4 Ncd5 Be6 Nf5+ Ke2 Rc3 Nf3 Bg1 Ng5 Bf2 Nf3 Nfe3 Kd2 Bg1
1n1RR1r1/2n1r2q/1Rp1B3/b4nPN/2bQ1K2/rr3RN1/7r/1kr1BbBR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 g4 Kc5 e4 Kb4 d4 f5 d5 h5 e5 a5 b3 c6 e6 c3 e7 h3 e8R h2 g5 c2 d6 h4 d7 h3 b6 a4 b7 a3 Qe2 a2 Re5 Nf6 Qf2 Rh7 Rd5 Qe7 d8R Be6 Rc8 Ne8 Qe2 Nc7 Rd3 Bc4 Be3 c1R Nd2 Ka3 b4+ Kb2 b5 Kc2 Rb1 a1R b6 R1a3 Kf2 f3 Kg3 f2 Re8 f4+ Kg4 f3 Kf4 Rg7 Bd4 Rb3 Qe5 Raa3 Ne4 Rg8 Nf6 Qh7 Nh5 Bb4 Ne2 Ba5 Neg3 Re1 Bg2 f1R Bg1 f2 Qd4 Re7 Bd5 Rc1 Be6 f1B Rf3 Rd3 Rb5 Rdb3 Rd5 Kb1 Rdd8 Bg2 Bf2 Bgf1 Be1 Bg2 Rg1 h1R Rgf1 Rh2 Rh1 Nba6 b8B Bgf1 Ba7 Nb8 b7 Rd2 Bc5 h2 Rg1 h1N Bb6 Rh2 Bc5 Nf2 Rh1 Ng4 Bb6 Ne3 Bc5 Nd7 b8R Nf5 Rb6 Nb8 Qe5 Na8 Bg1 Nc7 Qd4
2BB2K1/1b5N/r1b1N2r/rr1N1R1k/R4rpN/1N2nP2/n4B2/bq1nb2Q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 h4 Kg6 b4 a5 c4 d5 c5 e5 f3 e3 Kd3 e4+ Ke2 g3 b6 a4 c6 a3 b7 g2 b5 a2 b6 Nh6 c7 Kh5 Nh3 g1R Ng5 Nf5 Nd2 Nc6 b8B Nb4 b7 Ra5 Nh7 g5 Ba7 g4 b8N Bb7 c8N Qb6 Na6 Bg7 Nc5 Ra6 Ne7 d3+ Ke1 e2 Kf2 e1R Nb3 d4 Ne6 d2 Nd5 Ra5 Ba6 Ne3 Ba3 Rgf1+ Kg3 d3 Kf4 Re2 Qb1 d1B Bb2 d2 Bf6 Bc2 Ke5 d1N Rh2 Bc6 Bc8 Bd3 Kd6 Ba6 Ke7 Bab7 Kf7 Rfe1 Bd8 Rb2 Rc2 Rh1 Rc5 Rf8+ Ke7 Rf4 Qc1 Bf6+ Kf7 Ra6 Kg8 Rhh2 Ra5 Qb5 Ra4 Bd4 Rb1 a1R Bc5 Na2 Bcb6 Ndc3 Qh1 Ncd1 Rc1 Qd3 Rc5 Qb1 Ba7 Nf5 Rca5 e3 Rb5 e2 Bc5 Bc3 Bf2 e1B Rba5 Nfe3 Rc5 Kg6 h5+ Kf5 h6 Kg6 Nhf6 Rh4 h7 Rh3 h8N+ Kh6 Nh7 Kh5 Nc1 Rb5 Ng6 Nb4 Ndf6+ Kh6 Nb3 Ra2 Ra3 Ba1 Ra5 Ra3 Rf5 Na2 Nd5 Rh2 Ra4 Rh3 Rc4 R3a5 Ra4 Rh2 Nh4 Rh3 Ng2 Kg6 Rf7 Rh6 Nh4+ Kh5 Rf5+
N3q1n1/3brr2/1bRR2rN/2BrP3/1n2B2q/1p1B1kB1/b1r1RB2/KQ4r1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 Kc2 h5 Kb2 b5 a4 f5 g4 c5 e4 c4 g5 c3+ Ka2 f3 a5 c2 g6 f2 g7 f4 a6 h3 a7 h2 Nf3 h4 Na3 h3 Be3 c1R Bd3 f1R Bf2 Bd7 Ne5 f3 Ng4 Re1 Nh6 b3+ Kb2 b4 Ra2 Rc5 Qb1 Na6 Ka1 Qe8 Re2 Rd8 a8R Rc2 Rc8 Be7 Rg1 h1R Rg6+ Bf6 Rc5 h2 Rc7 Rhg1 Nb5+ Ke7 d6+ Ke6 Rc5 h1Q Rc6 Qh4 e5 Kd5 Bg3 f2 Bf5 f1R Bf2 Bc8 d7 Rh7 Bg3 Be7 Rge6 Bc5 Nc7+ Kc4 d5 Kd4 d6 Bb6 Bd3 Rf7 Na8 Kd5 Bf2 Rg6 Bc5 Reg1 Bf5 Nf6 g8B Rhg7 Bh7 Ng8 Bd3 Re7 Bf2 Rgf7 Bg3 Rg4 Bhf5 Rg6 Rh2 Kd4 Rf2 Ke3 Re2+ Kf3 Bf2 Nc7 Bc5 Nd5 Bf2 Ba6 Rf6 Bb5 Bg3 Rc8 d8B Ba4 Bc7 Rd8 d7 Bb5 Bd6 b2+ Ka2 Ba4 Bc5 Bb5 Rfd6 b3+ Ka3 Nb4 Bcf2 Rc8 d8B Rc5 Bc7 Rd5 Bb8 Rcc7 Ba7 Rc8 Rc1 Bd7 Rcc6 Bc7 Bac5 Bb6 Qc1 b1B Kb2 Rc7 Ka1 Ba2 Qf1 Ra7 Qb1 Ra5 Bce3 Rac5 Bd4 Rcc1 Bc5 Rc2 Bfe4+
bNKb1q2/RNR3Bn/1N1Qn1q1/2RBp3/2n3P1/Rr1R3n/k2n2r1/1r4n1 b - - 0 1 illegal: No possible last move, all moves rejected
4k2N/K4nQ1/b3R2q/b1p1PRnr/3R2nB/N1RB1n2/rn1b4/nB1R1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 a5 e4 h5 b4 f5 d4 h3 g4 a4 d5 h4 g5 a3 g6 c3 b6 h2 b5 h3 d6 a2 b7 f3 Ke3 f4+ Kd4 f2 Kc5 c2 b6 f3 e5 Nc6 b8R Nd4 b7 Qf6 g7 Nh6 g8B Ne6+ Kb5 Ng5 Bh7 Nhf7 Bfd3 f1Q Ne2 f2 Nf4 Qh6 Na3 c5 Kb6 Be7 Bd2 c1B Be1 Bd2 Rc1 a1N Ng6 Ra7 Rg1 h1N Qg4 h2 Rc3 Ra4 Ra8 Ra5 Ra6 Bd8+ Ka7 Bc7 Nc2 Ra2 b8R Ba5 Rb4 Bb7 Na3 Bc8 Rab6 Ba6 Rbc4 Ng3 Rg2 h1N Rd4 Nf5 Rh2 Ne3 Rh5 Nc4 d7+ Kd8 Re6 Nb2 Be4 Ng3 Bc2 Nf3 Rf5 Ne4 Bd3 Neg5 Bb1 Qb5 Qg1 f1N Bh4 N1h2 Qg4 Qf1 Qg2 Rg8 Nh8 Ng4 Qg3 Rg7 Bg6 Rh7 Qg1 Qg7 Bd3 Rh5 Bh7 Kc7 d8R Qh6 Bb1 Bc1 Rd1 Bd2 Rd4 Kc8 Rff4 Kc7 Bhd3 Kc8 Rf5 Kc7 Re4 Kd7 Rd4+ Nd6 Qe3 Ngh2 Nb5 Nh3 Qg5 Ng4 Ra4 Nf7 Qg7 Nhg5 Na3 Kd8 Ref6 Ke7 Rd4 Ke8 Re6+
n3N1K1/1k1N4/bB2npnr/qNbn3N/R1QRr3/3n2BP/1NB5/q2n1r2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 c4 Kd7 b4 Kc7 e4 g5 h3 a5 c5 f3 Kg3 f2 c6 a4 e5 d3 e6 f6 e7 d2 Bc4 f1N+ Kg2 d4 Qe2 d1N Bd3 a3 Nd2 g3 Kf3 g4+ Kf4 g2 Bc2 a2 Nc4 d3 Be3 g3 Nb2 d2 Qc4 Na6 Ne2 g1R e8N+ Kb8 c7+ Kb7 b6 g2 b5 Nf2 Rh2 d1N Ng3 Ne7 Nh5 Nd3+ Ke4 Rh1 Bd4 g1N Rd2 Nf3 Be3 Ndb4 Rd4 Nd3 Bf2 Ng6 Bg3 Bg4 c8N Nc7 Na7 Bc5 Bf2 Be6 Be3 Bd5+ Kf5 Rh6 Bf2 Ng5 Bg3 Kb8 b7 Bf3 Bf2 Be2 Be3 Nd2 Bf2 Nd5 Be3 Qa5 Bf2 Nh7 Ke6 Rf1 Kf7 Ng5+ Kg8 Ne6 Neg7 Kc7+ b8B+ Kb6 Ne8 Kb7 Bbg3 Rd8 b6 Rd7 Rb1 a1Q Nb5 Re7 Bg1 Ne4 B1f2 Nec7 Be3 Na8 Bg1 Q1a4 Ra1 Ng5 Ra3 Re4 Be3 Q4b4 Ra4 Ne6 Bg1 Qa3 Be3 Kc6 b7 Qa1 b8N+ Kb7 Nd7 N3f2 Nc3 Qc7 Qa2 Bb6 Rdb4 Ba6 Nb5 Nd3 Bc5 Ba7 Rd4 Qa5 Qc4 Bb6 Be7 Ba7 Bd8 Bc5 Bb6
rb1nn3/1q1qn2B/P3N1Nn/nRQR3p/5BN1/kN1b2Nn/8/KB3b1r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 Kd6 Kc2 b5 Kb2 c5 g4 f5 e4 b3 a4 b4 g5 h3 a5 f3 a6 f4 g6 c4 g7 h2 Nh3 f2 Ng5 f3 Rg1 h1N Qe1 Nc6 Ra5 c3+ Ka1 b2+ Ka2 c2 Rb5 Nge7 g8B Bf5 Rg2 Qd7 Nd2 b1N Qe3 b3+ Ka1 Na3 Bd3 f1B Rg3 h6 Bh7 f2 Rf3 Bg6 Rf5 Nd8 Re5 Nc4 Rf5 Kc7 e5 Nd6 e6 Ne8 d6+ Kc6 Rfd5 Bg7 Bf5 Be5 Nge4 Bf4 Ng3 b2+ Ka2 Be5 Nb3 Bf4 Bd2 c1N+ Kb1 Be5 Bc2 Bgd3 Qg5 Bg2 Bf4 f1N Qh5 Nh2 Qf5 Qc8 d7 Bb8 Qe5 Ng4 Qh5 Ng8 e7 Nhf2 Qf5 Nh3 Qf8 Nd6 e8N Bgf1 Nf6 Ne8 Qa3 Ne7 Qb4 h5 Qa5 Nh6 Ng4 Ne2 Ka2 Rf8 Bb1 Rf5 Re5 Kd6 d5 Nd4 Qb6+ N4c6 Qf2 Ne6 d8N Na5 Nc6 Qd7 Qc2 Nd8 Qc3 Nc8 Ne7 Rf6 Ng6 Ne7 Bd2 Rf2 Bf4 Rh2 Qd4 Rh1 Qb4+ Kc7 d6+ Kc6 Red5 Qb7 d7 Qa7 Bc2 b1Q+ Ka3 Qd1 Ka2 Qb7 Bb1 Be4 Bc7 Ndf7 Rg5 Qd5 Ka1 Bed3 Bf4 Qf5 Rb6+ Kd5 Qd6+ Kc4 d8N Qfd7 Ne6 Nd8 Rbb5 Kc3 Rgd5 Kc4 Rbc5+ Kb4 Rb5+ Ka4 Qb6 Ka3 Qc5+
nBR3r1/1r1BBN1p/rP4B1/1r4N1/n4nBR/K3bb2/2qrQNn1/5bk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 Kc2 Kg5 Kb3 Kg4 e4+ Kg3 e5 Kf2 g4 a5 g5 f5 g6 d5 b6 d3 g7 f3 b7 a4+ Ka2 a3 b4 f4 b5 h3 e6 d4 e7 d2 e8B h2 b6 d3 c5 Na6 b8B Bg4 c6 Qc8 c7 Nf6 g8B Ra7 Bef7 Nd5 Bh5 Bc5 Bb2 Be3 Nc3 Rb7 Qb1 d1R Bhf7 d2 Kb3 a2 Bc4 Qf5 c8N Nac7 Bg6 Na8 Nd6 Qc2+ Ka3 Bh5 Be6 Rg8 Bef7 Kg2 Ncb5 f2 Ne4 f1B B8e5 f3 Nf2 Nf4 Ngh3 Bg4 Be8 Bh5 Nd3 f2 Bd7 Bhe2 Bbc3 Bf3 Qb2 Rb1 Ba5 d1N Bb8 Nc3 Nd6 Na4 Ng5 Rd1 Rb1 Rd2 Rc1 a1R+ Qa2 Rb1 Ndf7 Rb5 Bg4 B1e2 Bce6 f1N Nde5 Bc4 Bb4 Kf2 Be7 Bd3 Rg1 h1R Bd7 Rh2 Rh1 Rg2 Rh4 Kg1 Ra1 Rge2 Qe6 Re1 Ra2 Ra1 Qc4 Bde2 Nd3 Nb2 Ba7 Bd4 Nf2 Qd3+ Qb3 Ne3 Bb8 Qf5 Qa4 Bf1 Qc4 Neg2 Qd3 Be3 Qe2 Rbd5 Kb4 Rb5+ Kc3 Qb1 Ra4 Qd1 Rc4 Ra6 Rc8 Na4+ Kc4 Rc5+ Kb4 Rb5+ Ka3 Qb1 Rc6 Qc2 Rc8
b5R1/1N2R1pB/2bq4/1n1N3b/nBk1rrb1/3PQ1R1/K3N1nr/1rbN3N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 h4 Kd6 a4 Kc5 d6 b5 h5 f5 h6 g3 d7 g2 a5 b3 h7 b2 e5 f3 e6 f4 e7 f2+ Ke2 b4 Kd3 b3 Kc3 f3 e8R Nf6 a6 Nc6 a7 Ne4+ Kd3 Nc3 Rh2 Na4 Re2 Nd4 Qe1 Nb5 Nc3 b1B+ Ke3 b2 Rh6 Bg6 Rh2 b1B Nd1 Kc4 Nh3 g1N Rg2 c5 Rg3 Bbe4 Ba3 Bc6 Bb4 Bh5 Ra3 Qb6 d8N Bcg4 Nb7 Bd6 Bg2 f1B Nhf2 Nh3 Nh1 f2 Be4 Rae8 a8N Nf4 Nc7 Bg2 Nd5 f1R Rb3 Rf2 Ra3 Rhf8 h8N Be5 Rb3 Bb2 Ng6 Bc1 Qg1 B2f3 Ra3 Rh2 Ra1 Nb2 Ra8 Na4 Qe1 Rf7 Qf2 Re6 Rg8 Qd8 Qe1 Qd6 Qg1 Nd3 Ngf4 Ne1 Rf2 Bg2 Ne2 Rf8 Rf5 Rff6 Rg5 Rf4 Re5 B2f3 Bh7 Ng2+ Kf2 Re7 Re3 Ree4 Kf1 Rd4 Re7 Rde4 Qd4+ Kb3 Qf2 c4 Qe3+ c3 Kf2 Kc4 Kf1 Nh4 Ke1 Bg2 Ndf2 B2f3 Kd1 Ng2 Kc2 Rh4 Kb1 c2+ Ka2 Rh2 Nc7 Ba3 Rb8 c1R Nd1 Rb1 Nd5 Bc1 Rf8 Bgd7 Rg8 Bfg4 Nc5 Ba8 Nb7 Bc6 d3+
1B1N1b2/N2P2BB/n1q1NnpK/1n1r1kN1/1R3Nr1/4b2b/1n5b/1Rb3Qr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Ke6 b4 f5 h4 a5 d4 c5 e5 g3+ Kf3 g2 b6 a4 b7 g6 h5 a3 h6 a2 b5 c3 h7 c4 b6 c2 Nd2 c3 Bb2 c1B Rh4 c2 Nh3 g1B Ne4 Qf6 Rb1 Ra5 Bc4+ Rd5 Qf1 Na6 b8N a1B b7 Bh2 Qg1 Be3 Ba2 c1N Nc6 Ne2 b8B Nc3 Na7 Nb5 Bc3 Bb2 Neg5+ Kd7 Bc4 Qc6 e6+ Ke7 Ba2 Kf6 e7 Bbc1 e8N+ Ke7 Ba5 Nf6 Ng7 Bd7 Bc3 Be6 Ke2 f3+ Kd3 f2 Nf4 Bd7 N7e6 f1R Ke2 Re1+ Kf3 Re2 Bb3 Rg2 Bc4 Rg4 Ba2 Rg8 h8N Rg7 Nhf7 Rh7 Nfd8 Rh8 Nd3 f4 Bc4 Nh7 Ke4 f3+ Ndf4 Kf6 Ba2 f2 Bb2 Rf5+ d5+ Re5+ Kf3 f1N Bb3 Kf5 Bc4 Qb6 d6 Rd5 Bg7 Qc6 Bb3 Nf6 Bc4 Be8 d7 Bf7 Bb3 Nd2+ Ke2 Rg3 Nc7 Be6 Nh7 Rc5 Nh3 Ke5 Rb4 Nc4 Nf4 Nb2 Ba2 Bf5 Bg8 Rd5 Nce6+ Bd6 Qf1 Bhg1 Qf2 Rg5 Kf3 Bg4+ Kg3 Kf5 Kh4 Bf8 Qh2 Be2 Qg2 Bf1 Qf2 Bh2 Qe1 Rg1 Qg3 Rh1 Qg1 Bh3 Nc7 Ke5 Kg5 Bfc5 Nce6+ Bd6 Nhf8 Rh4 Nh7 Rg4+ Kh6 Kf5 Nhg5 Bf8 Bh7
bn1r1r1N/N1RrqQ1b/3b4/1B1r3R/4b3/RKp2R2/2RP1N1b/qn1k2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Kd6 g4 Ke5 g5 Kd4 g6 h5 b6 c5 b7 a5 e5 f5 e6 c3 e7 c4 e8N c2 g7 a4 b5 a3 b6 f3 Rh3 f4 Bd3 f2+ Ke2 f1R Be4 a2 Bh7 Ne7 g8R Bf5 Nc3 Ra7 Nc7 Nd5 Rb1 a1B Rb3 Qe7+ Re3 h3 Ra3 h4 Rg7 h2 Ne8 h1B Nh3 Bhe4 Nf2 h3 Bb2 c1R Qb3 h2 Rf3 h1B Nd6 Rb1 Bg8 Bh7 Nf7 Ra5 Rg5 Rc5 Rf5 Rc7 Rh5 Rd7 Bc1 Rb2 Qa2 Rb5 Bb2 Qg5 Qb3 Bd6 Qa2 Qe7 Qb3 Nc6 b8R Ra5 Rc8 Nb8 b7 Rc5 Nh6 Rb5 Be6 Rhd8 Nf7 Ra5 Nh8 Rc5 Ng4 Rf2+ Kd1 Rb5 Rg3 f3 Rc7 Kd3 Kc1 Ra5 Nb5+ Ke2 Bd4 Nc3 Na7 Nb1 Bd5 Rc5 Bc6 Rd5 Bb5 Bc3 Be3 Bce5 Qa2 Bf4 Kb2 Kd1 Rgh3 c3+ Kb3 Rf1 Bg1 f2 Rf3 Bh2 Ka4 Rg5 Qf7 Rd5 Kb3 Re1 Ra2 f1Q Rc2 Re2 Rd3 Rf2 Rf3 Nc6 b8R Qe1 Ra8 Nb8 Rd3 Rf4 Rf3 Bg2 Qg8 Rff8 Qf7 Qf1 Bc6 Qa6 Bb5 Qa1 Nf2+ Ke1 Rf6 Rg5 Qg6 Bc6 Qf7 Bge4 Rf3 Rd5 Nc8 Bb7 Ra3 Ba8 Nd3+ Ke2 Na7 Kd1 Nf2+
qRR1Q3/rqN3nn/2Bb2b1/bR1B2nr/1R1p4/1Pb1n1B1/KR2b3/1N1k4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 c4 Kc5 Kc2 Kb4 h4 g5 b6 f5 e5 d5 e6 a5 c5 f3 c6 f4 e7 f2 e8B g3 h5 g4 b7 g2 b3 g3 Kb2 f3 h6 a4 h7 d3 c7 d2 Bh5 a3+ Ka2 Na6 Rh2 Ra7 Be2 f1B Bg4 f2 Rh3 Nf6 Bb5 Nc5 b8R Bf5 c8R Ne6 Qe2 d1Q Rb7 Bd6 Be3 Bg6 Bh5 Ng7 Qb2 Qf3 Ne2 g1B Rcb8 g2 Ng3 Be2 Qc1 f1N Bf4 Bb6 Bc6 g1N Nf5 d4 Ne7 Ne3 Rh2 Nh3 Bg3 Ng5 Qb2 Qd5 Bf3 Qb5 Rg2 Ba5 Bfd5 Qc8 Rb6 Qb7 Rc8 Qa8 Rbb8 Qbb7 Rf2 Rd8 h8R Nfh7 Rhf8 Re8 R8f5 Rh8 Rg2 Nf6 Qc2 Rh5 Qe4 Nfh7 Qe5 Bd1 Rb2 Be2 Nd2 Kc3 Rc1+ Kd3 Rc4 Qc7 Rcb4 Qcb7 Qe6 Kc3 Qf7 Kd3 Qe8 Kc3 Rb1 Kc2 Rb2+ Kc1 Nb1 Kd1 Bg8 Be5 Nd5 Bd6 Ka1 a2 Nc7 Bg4 Rfb5 Bf3 Rh2 Be2 Kb2 a1B+ Ka2 Bc3 Bgd5 Bed3 Rc2 Be2 Rb2
1nrqr1B1/3RQ3/1q2bK1B/b1rr1n1B/2p1r1PN/6b1/3b1N2/B2BkNR1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 a4 e5+ Kg3 h5 Kh4 b5 f4 c5 a5 c3 d3 b3 a6 b2 f5 c2 a7 b4 f6 b3 f7 c4 Qe1 e3 Qa5 e2 Qa3 e1R Bd2 c1B Nh3 e4 Nf2 e3 Qe7 e2 g6 Be6 Kg5 h4 g7 h3 Rg1 Nh6 g8B h2 Kf6 Nf5 Bh6 h1R Nd2 Kc3 d4 b1R d5 b2 d6 Rh5 d7 Rd1 Ra6 e1B Rd6 Ra1 Be2 b1Q Rd5 Qbb6 Nf1 Bcd2 Rd4 Ra5 Rd5 Rb1 Bd1 Rbb5 Rd4 Re5 Rd6 Rac5 Rd4 Qdc7 d8B Re4 Rd7 Qc8 Bc7 Qd8 Bd6 Ne3 Bc7 Rhd5 Bg3 Nf5 Be5+ Kb4 Ba1 Bg7+ Kg6 Be5 f8N Bg3 Bf7 Rg8+ Kf6 Rh8 Ng6 Re8 Be2 Kb3 Nh4 Kc2 Bh5 Ba5 Bf3 Bed2 Be2 Na6 Bf3 Rac8 a8B Nb8 Bd1+ Kc1 Ne3 Bdb4 Bb7 Kd2 Nf1+ Ke1 Bc6 Rdd4 Bd5 Bd2 Rd6 Bd7 Be6 Rdd5 Bg8 Be6 Rd7
3n4/1BRK1B1q/6Rb/4pB2/kNrBn2N/1qq1nr2/N3P1b1/1QB1n1nq b - - 0 1 legal: proof: f4 b5 g4 g5 d4 c5 a4 cxd4 axb5 gxf4 g5 h5 Qd3 Ba6 Qf5 Bc8 Qg4 hxg4 Kf2 e5 b4 a5 h4 f5 c4 d5 g6 Kd7 g7 a4 b6 Kc6 h5 g3+ Kf3 g2 c5 Kb5 b7 a3 h6 a2 h7 d3 c6 d4 c7 d2 Rh2 d1Q Nd2 d3 Rh3 Nc6 b8N Qb3 Rh2 Ra3 Ne4 Qc3 Na6 Ka4 b5 Bb7 c8B Qh4 b6 Nd8 Nb4 Nf6 g8B Bh6 Bf7 Re8 Rb1 a1N h8Q Nc2 Qh7 Bc6 b7 d2+ Nd3 d1Q b8B Re7 Rb7 Rc7 Ba7 Bd5 Bce6 Rc4 Rc7 Bc6 Bd4 Qh5+ Kf2 f3 Kg3 f2 Nf3 g1N Rg2 Ne1 Nb4 Qdb3 Bc8 Ba8 Bb7 Qg6+ Kh4 f4 Rg4 Qf5 Bh3 f1N Rg6 Ne3 Bg4 Qd7 Bf5 Qe7 Nd6 Qd7 Nb5 Ne4 Kh5 Qe7 Nh4 f3 Bb2 f2 Bc1 Nd1 Kg4 f1Q B5e6 Qg2+ Kf5 Qh1 Bec8 Qe8 Bce6 Qg8 Bd7 Nc6 Ke6 Nd8+ Ke7 Qh8 Bf5 Ne3 Kd7 Qg8 Na7 Qg7 Nac6 Qh8 Na2 Qg7 Qh8 Qh7 Ncb4 Nf2 Ba6 Bg2 Bb7 Ne4 Qg7 Nf1 Qf6 Ne3 Qb6 Qbb2 Bg4 Nd1 Bf4 Qcc2 Bc1 Rf3 Nd5 Qbc3 Bf5 Ne3 Qb1 Q2b3 Ndb4
rBQk3b/rr2bn2/1r1qbR1P/4pb1r/B2R1q2/1N4B1/nKR5/2R1NR2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 g5 h4 d5 c4 a5 Kc2 d3+ Kc3 d2 b4 e3 f4 g3 h5 g4 b6 d4+ Kc2 a4 c5 d3+ Kb2 e2 c6 e1Q f5 a3+ Kb3 g2 b7 a2 f6 g3 c7 Qe4 b5 Na6 b8B Nb4 b6 Be6+ Kc3 Nh6 c8R Nf7 b7 Qf4 Qf3 d1R Rc7 d2 Qg4 Qdd6 Kb2 Kd8 Nf3 g1B Rc2 g2 Ne1 Rh7 h6 Bd4+ Nc3 g1R Bb5 Rg2 Ba4 Rh2 Rf1 Rh5 Rb1 a1R Qg8 Ba7 Nb5 Na2 Nd4 Bc5 Qg4 Bg7 Nb3 Bh8 Qh3 Bf5 Qc3 e5 Qc4 Ng5 Qa6 Rc7 f7 Rc6 Qc4 Rb6 f8R+ Ke7 Rg8 Nf7 Rg6 Kd8 Rf6 Be6 Ng2 Re1 Qc3 Re2 Ne1 d1B Bd2 Reh2 Rbc1 Bdg4 Be3 Bgf5 Bf2 R2h4 Bg3 Rg4 Qc4 Rg7 Qc3 Bb4 Qc8+ Ke7 Na5 Rba6 Nb3 R6a7 Nc5 Qa6 Bc7 Nd8 b8R Qc6 Nb7 Bd6 Nc5 Rb1+ Ka3 Rb4 Rb5 Qd7 Ra5 Rb6 Bb8 Ke8 Rg6 Qc6 Rb5 Rgb7 Kb2 Be7 Rf6 Qd7 Nb3 Qd6 Qc7 Nf7 Rd5+ Bd7 Qc5 Kd8 Rd4 Bde6 Qc8+
3nnbbr/3b4/b2qn1p1/N1Pb1B2/2RB1k1N/Q7/BKB2Rnq/RB5r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 a4 b5 h4 d5 e6 g3 e7 d3+ Kb2 g6 e8B d2 e4+ Kf4 a5 f5 h5 g2 e5 b3 c5 b4 a6 d4 e6 d3 a7 Nc6 h6 Qd6 e7 Nf6 h7 Bd7 Ra4 Nd8 Ka1 b2+ Ka2 Rc8 Nc3 b1B+ Kb3 Ba2+ Kb2 Bd5 Ne4 b3 Nf3 g1N a8B Ne2 Nh4 Nd4 Rc4 N4e6 Bf7 Ne8 Bh3 Rb8 Bc6 Ra8 Qc2 Ra1 Qc3 Qb8 Qb4 Qd6 Qa3 Rb1+ Kc3 b2 Ba4 Ra1 Bc2 b1Q Bb2 Qg1 Bb1 d1N+ Kb3 d2 Bd4 Ne3 Kb2 d1B Nd2 Qg3 Nb3 Ng2 Na5 Bb3 Rhc1 Qh2 Re1 Nf6 e8B Ba2 Bg8 Bb3 Bef7 Ne8 Bc2 Rc1 Re2 Rh1 Rf2+ Kg3 Bb1 f4 Bhf5 f3 Bbc2 Kf4 Bb1 N6c7 B7e6 Ba2 Bfc2 Bb3 Bef5 Nce6 Rf1 f2 Bf7 Rg8 h8R Ba2 Re1 f1B Rh5 Rh8 Rg5 Ne3 Rg2 Bd3 Rge2 Ng2 Rf2+ Bf3 Rb4 Ng5 B7e6 Bac4 Bg8 Ba6 Bga2 Bdc4 Rd1 Bg8 Rc4 Bh6 Bce4 Bg7 Bbd3 Bf8 Ra1 Nge6 Bdb1 Ng5 Re2 Nge6 Bec2 Bd5 Rf2+
1RN1b1N1/3nP2k/Nqn1RNrb/bb2Q3/1n5n/2KNR1p1/2n4B/rB4q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 Kf7 e4 Kg7 c5 d5 e5 d3 h5 a4 b6 g3 b5 g4 b7 a3 e6 a2 c6 g2 c7 g3 b6 f3 h6+ Kh7 e7 f4 Qe2 f2 Qd1 d4 Na3 f3 Nc4 Nf6 Ba3 Nfd7 Rh4 Nc6 b8R Rg8 b7 Rg6 Nh3 g1N Rb1 a1B Rb6 Bb2 Bd6 Ra1 Qe2 Ba3 Bg2 f1Q Re4 f2 Bc5 Bg7 Rb3 Bb4+ Rc3 Ba5 Nb6 Qb1 Nf4 f1B Nbd5 Qb6 Re6 Qf8 Nh5 Qf2 Nb4 Bf8 Bd5 Qg2 Ba2 Qh1 Bb1 Nf3+ Kc1 d2+ Kc2 d1N Rce3 Qg1 Nd3 Nc3 Qe1 Nh4 Nf6+ Kh8 h7 Nd5 Qc3 Ndb4+ Kd2 Kg7 h8N Be2 Nf7 Bh5 Ne4 Kh7 Nh6 Be2 Ng8 Bh6 Nc1 d3 Qe5 Bh5 Kc3 d2 Nd3 d1N+ Kc4 Nb2+ Kc3 Nc4 Bd4 Na3 Nef6+ Kh8 Bc5 Nac2 Bd4 Nf8 Bc5 Bd7 c8N Be2 Ra8 Bf1 b8N Be8 Na6 Nd7 Rb8 Kg7 Nf2 Bb5 Nd3 Qf1 Re4 Qg2 Bg1 Kh8 Bh2 Qgg1 Re3 Kg7 Nd5+ Kh7 Ndf6+
1Kb1rNqq/p7/1bBN2N1/BqR5/B5rq/nQ1P3r/q1NnkR2/3N3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 h5 e4 f3 b3 f2 b6 f4 b7 h3 g5 f3 g6 h4 g7 c3 Ra2 h2 Ra4 h3 Bg2 f1Q b4+ Kc4 b5+ Kd3 b6 c5 Qb3 f2 Na3 c4 Ra5 Na6 b8N Qh4 b7 Bc5 Nd7 Nc7 b8N Nb5 Nc2 Bb6 Ne2 Nf6 g8B Na3 Kd6 Qg1 e5 f1Q e6 Ne4+ Kc6 Qff2 e7 Qgf1 Rg1 h1R e8N h2 Rc5 Qf8 Bd5 Qg8 Nf8 Rh5 Ng6 Rg5 Nc7 Rg4 Nb5 Qff6+ Nd6 Qfh8 Nd7 Rb8 Ng3 Ra8 Nf1 Ke2 d3 Nd2 Ndf8 Rb8 Ne1 c2 Ne3 c3 Rf1 Ra8 Bb2 c1Q N1c2 Qa1 Nd1 Qa2 Bc4 Rb8 Bb5 Ra8 Ba4 Rb8 Na1 c2 Bc3 c1Q Ba5 Qcc4 Nc2 Ra8 Ne8 Qb5+ Kd6 Rg1 Bc6 h1R Rff5 Rh3 Rf3 Ba6 Kd7 Rgh1 Nd6 Rb8 Rff5 Rb7+ Kc8 Re7+ Kb8 Bc8 Rf3 Re8 Rf2+
3b4/n5rq/KB6/N1qn4/2R1Q1R1/1pBNRP1B/1rbB1qqr/b2bBk2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 a4 Kd6 d4 b5 h4 c5 h5 g5 a5 e5 a6 g3 h6 g4 a7 g2 h7 g3 Kd2 c4 Kc2 b3+ Kc3 b2 Kb4 e3 Nd2 b1B Rh2 e2 Nb3 e1Q+ Bd2 c3 Be3 e4 Bg5 c2+ Nd2 c1Q Nf3 g1R Bh3 e3 Qe2 g2 Bd7 Ne7 Bh4 Bg7 Rh3 Qg8 Ka5 b4 Nb3 Bc2 Ne5 Nbc6+ Kb5 Qa3 Na5 b3 Nd3 Qb2 Qf3 e2 Qe4 Qf1 Rg3 e1B Bh3 Bg4 Ra4 Bgd1 f3 Qf2 Rg4 Rc8 a8R Na7+ Kb6 Qa3 Bg5 Qc5+ Ka6 Bc3 Bh6 Bf6 Bd2 Ba1 Rc4 Qf7 Be1 Rcg8 Rf8 Rg7 Re8 Rh1 Bd2 g1Q Be1 Rhg8 h8B Qgg2 Bd2 Rh2 Be1 Kd7 d6 Nd5 Bd2 Bd8 Re7+ Kc8 d7+ Kc7 Re5 Kd6 Be1 Bc7 d8B Qg6 Bg5 Qh7 Bgd2 Bd8 Qf5 Re8 Re3 Re5 Qg5 Ke6 Qe7+ Kf5 Qh4 Nf6 d5 Re8 d6 Nd5 d7 Re6+ Kb7 Ra6 Nc6 Ra2 Na5 Rb2 Qe7 Rg8 Qe8 Rg6 Bhc3 Rg7 Rgf4+ Kg5 Qe4 Kh5 Ka6 Kg5 Bg4 Kh4 Bh3+ Kg3 Rh4 Rh1 Rf4 Kh2 Rg4 Kg1 Qe7 Kf1 Qe4 Bg5 d8B Rh2 Bc7 Bd8 Bb6
7n/1bQqk3/3b3b/nNBN1q2/B2NrNRK/Pr5R/1pN1b1q1/3rR2q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 g4 h5 e4 c5 d4 f5 a3 h3 g5 f3 Kg3 b3 g6 b4 d6 b2 d7+ Ke7 d5 f4+ Kh4 b3 g7 f2 e5 c4 e6 c3 Bd2 f3 Kg3 c2 Bf4 c1B Qd3 h2 Qh7 Nh6 g8R+ Nf7 Nc3 b1Q Rg4 b2 Nb5 Nc6 Be3 Bb7 Kh4 Ra4 Nh3 Qf5 Nf4 Re4 Bg2 Qc8 d8N f1B Bf2 Bd2 Re1 Qd7 Be3 f2 d6+ Kf6 e7 Be2 Bh3 f1R Nde6 Na5 Ned4 Rf3 Bg1 Rb3 Nc2 Bh6 Bb6 Rd8 Bc5 Bb4 Bg2 Nh8 e8N+ Ke5 Nec7 Kf6 Rhf1 h1Q+ Bh3 Rc3 Rf3 Rb3 Rd3 Qf3 Bf1 Qg2 Rh3 Qf7 d7 Qg7 Ba7 Bd6 Be3 Ke7 Bc5 Rg8 d8N Re8 Nf7 Rd8 Ne5 Qgf7 Nf3 Qd7 Qg6 Qff5 Qh7+ Kf6 Nb4 Qc8 Na7 Be5 Rh1 Rd1 Nd4 Bc4 Nbc2 Bd6 Bd3 Bca6 Bb5 Qe8 Ba4 Be2 Qd7 Qf7 Qc6 Q7d7 Nab5 Ke7 Ncd5+ Kd8 Nde3 Ke7 Qb6 Qf1 Kg3 h4+ Kh2 h3 Kg3 h2 Kh4 Qg1 Qc7 Qg2 Ned5+ Ke8 Rhf1 Kf8 Rf3 h1Q+ Rh3 Kf7 Nde3 Ke7 Ned5+
n4RBq/1Qq1qNB1/2bb3N/1n1R4/2KBknb1/P1R5/p4rBq/Br2b3 b - - 0 1 illegal: No proof kernel
K5nb/1n2rB2/N1q5/rB4Nq/r2p1P1k/B1qB3R/b2RRb1B/3q1bQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 a5 b4 h5 c4 e5 b6 d5 b5 h3 c5 e3+ Kd3 e2 g5 e1Q b7 h4 b6 e4+ Kc2 h2 Kb3 d3 Ka4 e3 Kb5 d4 c6 a4 c7 a3 Nh3 d2 Ra2 e2 Nc3 Kh5 g6 Qd6 g7 Nd7 b8R Nc5 b7 Ra4 Ne4 Rh7 Nhg5 Be6 c8B h3 Bd7 Kh4 Re8 Bd5 b8B Nb7 Rc2 a2 Nc5 a1R Na6 Ba2 Ba3 Qg3 Bc7 e1B Re2 Bf2 Ba5 Qc3 Bc6 Be7 Kb6 Bf6 Ka7 Qd5 Be8 Qdc6 Ka8 Be5 Qc1 d1Q Rcd2 Bf6 Bg6 Be5 Bd3 Bf6 Rg1 h1B Rg3 h2 Qb1 Bg2 Rh3+ Kg4 B5b4 h1Q Ba5 Nh6 g8B Bh8 Bd5 Re7 Bf7 Ng8 Rf3 Be1 Bb5 Bc4 Rc2 Qb3 Bd2 Qc1 Re4 Ra5 Bd6 Qh7 Bd3 Kh4 Be3 Qc3 Bg1 Qh5 Rd2 R1a4 Ree2 Ba2 Ba3 Bf2 Bh2 Q1c2 Qh1 Qd1 Qg1 Bf1 Rh3+
1Rr1rQ1n/R1B2N2/2k4B/bB1n1P1r/1n4p1/2N2r2/1NB1b1qb/1BKnq3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 e5 c4 b5 a4 d5 h4 Kd7 f4 g5 h5 e4 h6 d3 f6 d4 c5 e3+ Ke1 d2+ Ke2 g3 f5 d3+ Kf3 e2 Ke3 e1R+ Ne2 b3 f7 g4 h7 g2 a5 g1B+ Ke4 b4 a6 b2 a7 b3 Nc3 b1R Na4 Na6 Nb2 Bh2 Ke3 Nh6 c6+ Kd6 c7 Nb4 Ra2 Ba6 c8B Kc6 Be6 Qd5 Ra1 Bfd6 f8B Nf7 Bh6 Bc7 Rg1 Rhc8 h8N Ba5 Rg2 Rab8 a8B+ Rb7 Rg3 Qg2 Bf4 Bb5 Bc7 Bc4 Qc2 d1N+ Kd2 Ne3 Qc3 Ned5 Qg7 Ba6 Qf8 Bb5 Ra4 Ra1 Rf3 Ra3 Rf2 Ba6 Nc3 Re5 Kd1 d2 Bd3 Re3 Bc2 Rh3 Re2 Re8 Bc8 Rh5 Re7 Bb5 Rd7 Bc4 Rd8 Ba6 Be6 Bf1 Rb8 Bb5 Nc4 b2 Bc8 b1Q Nb2 Bb6 Ra7 Ba5 Ne2 Rf3 Nc3 Ne5 Nf7 Ng6 Be6 Nh8 Bc8 Qa1 Bb1 Nd3 Kc2 d1N+ Bd2 N3b4+ Kc1 Bd3 Bh6 Be2 Be6 N5e3 Bb3 Ned5 Bc2 Rc8 Nca4 Re8 Nc4 Qc3 Ncb2 Qe1 Nc3 Kd7 Be5 Rc7 Bb7 Rcc8 Ba6+ Kc6 Bc7 Qeg1 Bad3 Qe1 Bb5+
2B1n3/5n2/NNBrn2B/KR1N1pqq/1Q4bP/b5Bn/3r1RB1/k1r2bb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Ke5 e4 a5 c4 g5 b6 d5 c5 d3 Kc3 f3 b7 d2 b5 d4+ Kb3 g3 Ka4 d3 b6 Kd4 e5 g4 c6 g2 e6 f2 e7 g3 e8B Rh6 c7 Qg5 Nc3 Rd6 Ne4 Nd7 b8N Nh6 b7 Nf6 Ba3 Bg4 Qb1 d1Q+ Qb3 d2 Bd7 Ne8 c8B f5 Bc1 Nf7 Kb5 a4 Bc6 a3 Rh2 a2 Bc4 f1B Rb1 a1N Qa4 Nb3 Na6 Nc5 b8B Ne6 Nf6 Kc3 Nf3 g1B Ka5 g2 Ne5 Qe2 Rb4 d1R Rb5 R1d2 B4d5 Ra7 Qe4 Rc7 Qb4+ Kc2 Ned7 Qd1 Bb3+ Kb1 Bbd5+ Ka1 Nb6 Qf3 Ba8 Rc3 Bdc6 Qe2 Nfd5 Rc5 Ba3 Rc1 Bc7 Qe5 Bb8 Qh8 Bab7 Qhh5 Bc7 Rd7 Bg3 Rd6 Ba8 Be3 Bab7 g1N Rf2 Nh3 Bb2+ Ka2 Bbe5 Bd4 Bg7 Ka1 Bh6 Bc5 Rg2 Bg1 Ba8 Bg7 Rf2 Bb2 Ne7 Ba3 Bg2 Nef4 Ned5 Ne6 Bc6
KBR5/NB1q2n1/nbN1BBqB/k3P1N1/8/qnr3Qb/5q1p/nRrr4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 Kb6 b4 h5 c4 a5 e5 f5 g5 h3 g6 h2 g7 a4 Qf3 h4 Na3 h3 Qf2 f3 Ne2 f4 Nc3 Ne7 g8B Qe8 Qg2 f2 Bf7 f3 Bg5 Nf5 Be6 Na6 Qg3 Ng7 Bf6 Qg6+ Ne4 Bc5 Nc2 a3 Rc1 a2 Bg2 f1N Rb1 Nd2 Rhc1 a1N Bh1 Qe8 Ng5 f2 Be4 h1Q Bg2 Kb7 b6 h2 b5 Ndb3 Nb4 Rh3 Nc6 Qg6+ Be4 Bd7 Rc3 Qc1 Rc2 Be7 c5 Qa3 Rcc1 Bd8 Rc2 Kc8 b7+ Kc7 b8B+ Kb7 Rc4 Bb6 Bd6 Rc8 Bf8 Kc7 Nb4 Kb7 c6+ Ka7 c7 Kb7 Ke2 d3+ Kf3 d2 Nc6 d1R Kf4 f1Q+ Bf3 Rb8 c8N d4 N8a7 d3 Rc2 d2 Rcc1 Qe8 Ke4 Qf2 Kd5 Rc8 Bh1 Qg6 Rc5 Nh5 Bh6 Ng7 Kd6 Bd8 b6 Rc7 Qg4 Rc3 Qg3 Rcc1 Bg8 Bh3 Be6 Nb8 Kd5 Ka6 b7 Kb6 Kd6 Na6 b8B Rc3 Nd4 Rc8 Bb7 Bc7+ Kd5 Rcc1 Rc4 Ka5 Kc6 Rc3 Ba8 Bb6+ Kb7 Rd8 Rc6 Rdc1 Rc8 d1Q Ndc6+ Ka4 Bf5 Qg4 Be6 Rdd1 Bd7 Qgd4 Be6 Qd7+ Bc7 Nac5+ Kb8 Qdf7 Bb7 Qd7 Ka8 Na6 Ne7 Kb4 Bb8 Ka5 Nec6+
1K1n4/7R/BbRBN3/n2kpq1b/rr1Q1qP1/5n2/B2qBb2/nB2bNN1 b - - 0 1 illegal: No possible last move
2R2K2/2q3n1/3R4/1rqP3b/2br1NQn/2BN3r/B2bpRRR/k1qNq2b b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 h5 f4 c5 d4 a5 b6 e3 b7 c3 b3 c2 g5 a4 f5 c4 f6 a3 d5 a2 g6 h3 f7 c3 g7 e2 Be3 e1Q Nf3 c1Q Ng5 h2 Ne6 h4 Qf3 h3 Qf6 c2 Rg1 h1B Rg2 h2 Rg5 Ra5 Nf4 Na6 b8N Rh3 Nc3 Ka3 b4 Kb2 b5 Nc7 b6 Nh6 g8R Ne8 b7 Bf3 Qg6 h1B Na6 Nf5 b8R+ Rb5 Nc5 Bh6 f8R Neg7 Rb6 Bh5 Rd6 Ba6 Rg2 Nh4 Bc4 Qc7 Qg4 e6 Kf6 e5 Bf2 e4 Bd4 e3 Rc8 e2 Rh2 Qe3 Bb3 c1Q Nd1+ Ka3 Rb1 a1R Ncd3 Ra2 Be5 Rd2 Bc3 Q3f2 Ba2 Qfc5 N3b2 Rd4 Nbd3 Rbb4 Rgf8 Bc4 Rf7 Rb5 Rb4 Q7b6 Ke7 Qbc7+ Kf8 Bg5 Ne6 Bd2 Rff2 Ra5 Rb7 Rb5 Rfg2 Qb8 Rf7 Qbc7 Bb1 Kb3 Rff2 Ka3 Nef4 Kb3 Bc2+ Ka2 Bb3+ Kb1 Bb4 Ka1 Ba2 Q7a7 Ba5 Qac7 Bc3+
b1B1R1n1/2NR4/1N1pq2P/1Qq2n1b/qN5N/B2r1nb1/krq1B3/n4K1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 h4 Kd6 b4 a5 c4 f5 b6 g5 h5 f3 h6 f4 b5 Kc5 e5 Kb4 b7 g3 c5 g2 c6 d3 b6 f2+ Kd2 a4 c7 a3 e6 f3 e7 a2 e8B g4 Bh5 g3 Qe1 Kb3 Ke3 d2 Na3 d1Q Qd2 Qh4 Qe2 Nc6 b8N Bd6 b7 Nce7 Rh2 Qa4 Nc6 Rb8 Nh3 g1N Nc2 g2 N2b4 Qc2 Ba3 Bg3 Re1 a1N Ne5 d6 Qb5 Bg4 Be2 f1B c8N f2 Ng6 Nf3 Nb6 g1Q Nh4 Bg2 Be8 f1Q+ Nf2 Ra8 b8N Bh5 N8a6 Rc8 Rc1 Qe1 Bd7 Rc6 Nc7 Rc3+ Nd3+ Ka2 Bc8 Rh7 Rb1 Rf7 Rb4 Rb3 Rg4 Rb2 Rg7 Rf4 Rh7 Rd4 Rh3 Qgf1 Nh1 Qeb4 Rg7 Qbc5 Rf7 Qe1 Rh7 Ng6 Rd7 N6e7 Rh2 Nd2 Rh3 Ba8 Rh2 Nf3 Rf2 Nd2 Rf8 Nf3 Re8 Qec3 Bd1 Q3c4 Be2 Qe6+ Ne5 Bh2 Kf2 Nf5 Nc6 Rd3+ Kf1 Bg3 Nb4+
2RK1bq1/5rb1/RP1NR3/qNr1Qq2/Nnp2B2/N2n4/k5b1/N1bBn1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 g4 f5+ Kf3 Kd5 b4 h5 d4 c5 g5 c3 e3 h3 b6 a4 g6 h4 b5 c2 b7 a3 b6 h2 g7 a2 Ba3 c1B Ne2 Kc4 d5 h3 e4 Na6 b8N Nb4 e5 Rh5 d6 Bb7+ Nc6 Nf6 g8R Nh7 d7 Ra7 Qd6 Kb3 e6 c4 e7 Rg5 Rg1 h1N e8N h2 Qe5 Nf2 Nc7 Nfd3 Nb5 h1Q+ Rg2 Qb8 d8N Qg1 Nec3 Rh5 R2g6 Ng5+ Ke2 Ba8 Nf7 Nf3 Re6 Nfe1 Nfd6 Rf7 Na4 Qa7 Bh3 Qa5 Bg4 Bb7 Bf3 Qg6 Rh8 Qg8 Bb2 Rg5 N1a3 Ba8 Bh5 Bb7 Bd4 Ba8 Be3 f3+ Kf1 f2 Ke2 f4 Bf3 Na6 Nb4 Rgf5 Bg4 Bg2 Nbc2 Nab4 Bd2 f3+ Ke3 f1Q Ke4 Rh5 Bf4 f2+ Kd4 Qg1 Bd1 Nb2 Kc5 f1Q+ Be3 Qh2 Bg5 Qf5 Bf4 Qg1+ Be3 Nd5 Kc6 Nbd3 Bf4 Rg5 Re7 N5b4+ Kc7 Rh5 Kd8 Rg5 Rh6 Rh5 Rc7 Rg5 Re6 Rh5 Rc8 Rg5 Nb2 Rh5 Rb1 a1B Na4+ Bab2 Na1+ Ka2 Qd5 Bbg7 Qe5 Rh4 Bg3 Rd4 Bf4 Rd5 Rb3 Nf2 Rh3 Nfd3 Rh8 Rc5 Ra8 Nb2 Ra6 N2d3 Rf6 Qgh7 Ke8 Be7 Rg8 Qh8 Re6 Qhh7 Rf8 Qh8 Kd7 Qg8 Rc8 Bef8+ Kd8
rk3qBN/1b2qnpN/1Pn1B3/2BRn3/1r1qBqR1/5N2/2KnBQ1b/5r2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kd2 f5 e4 a5 h4 d5 b4 Kd7 c4 Kc7 h5 g3 c5 a3 b5 f4 c6 a4 e6 f3 h6 f2 h7 a2 e7 a3 e8B g2 e5 d3 e6 d4 e7 Bb7 Qf3 Nh6 Nh3 g1N Qg2 Nf3+ Kd1 d2 Bc4 f1Q+ Kc2 d1R Be2 d3+ Kb3 d2 b6+ Kc8 c7 Qd6 Bh5 Nc6 e8B Re1 Beg6 d1Q+ Kc3 Qa4 Nd2 Qf6+ Kd3 Bd6 Ng5 Bh2 Rg1 Nfe5+ Kc3 Rf8 h8N Qe7 Nh7 Rf4 Bhf3 Qf2 Bf7 Rf1 Bg8 Rd4 Bfd5 Qff8 Qf2 Nhf7 Nf3 Rh4 Rb1 a1N Be3 a2 Bc5 Nb3 Kc2 a1Q Rd1 Qb4 Rd3 Nd2 Rg5 Rf4 Rg1 Qe4 Rg4 Qe3 Rd4 Re4 Rd3 Rb4 Be4 Qf4 Rd5 Qd4 Qe1 Ba6 Qf2 Kb7 c8B+ Kb8 Bcf5 Bb7 Be6
b1q1nrR1/3P2r1/1BB5/n2rB1NQ/1Rp4R/2qqr1bR/K2kN3/b3bR2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 Kd4 g6 f5 e5 c5 e6 h5 b6 a5 g7 f3 e7 c3 e8R h3 d3 c2 Kd2 f4 b5 a4 b7 f2 b6 f3 Rh2 h4 Re5 c4 Qe2 a3 Re6 a2 Na3 Rh5 Re7 Nc6 b8B Ra7 b7 Nf6 g8R Na5 Bc7 Ne8 b8R Rd5 Rb2 Bb7 Rgg7 Ba8 Rb5 Qc8 Re3 Bd6 Bg2 f1R Rg8 f2 Rb4 Bg3 Nb1 Re1 Qh5 f1Q Bb8 Rg7 Nc3 Qff5 Ba3 c1B+ Kc2 Bd2 Kb2 Qe5 Rh1 h2 Ne4 h3 Ng5 Qf6 Rf3 Re3 Raf1 a1B+ Ka2 Kc3 d4 Bde1 Ne2+ Kd2 Be5 Qg6 Rf4 Qd3 Rh4 Qc3 Bb2 Qd3 Bc7 Qc3 Bb6 Qd3 Rhg1 h1Q Be4 Qf3 Rh1 h2 Rh3 Rf5 d5 Rf8 d6 Qf6 d7 Qfc3 Rhg1 h1R Bc6 Rh2 Rh1 Rhf2 R1h2 R2f5 Rh4 Rd5 R2h3 Qc1 Bf6 Qcc3 Be5
3R1RQ1/n1b2prb/n1b3N1/nR2r1bB/1B1P4/2nn1BR1/3nqN1K/2kR4 b - - 0 1 illegal: No possible last move, all moves rejected
q3N1q1/BbNNq3/r2N1n2/1K5N/1nR1p1B1/4n1rB/RP3p1b/r1k1b1Q1 b - - 0 1 illegal: No proof kernel
b3k3/3pN1B1/r2nq1rQ/q1N1R3/N2NnR2/1NPr3p/3b3K/qRn1bB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 g4 a5 Kg2 h5 b4 h3+ Kh2 d3 e4 h4 e5 f3 e6 f2 b6 a4 b7 a3 b5 a2 g5 d2 e7 f4 g6 f3 b6 Bh6 g7 Nc6 b8R Ra6 b7 Nf6 g8N Nb4 Ne2 Ne4 Ra8 Nd6 b8N Bb7 Ng1 Nd3 Ne2 Qa5 Ra7 Ba8 Bb2 Nc1 Nec3 Rh7 Rg1 Rg7 Na4 Rg6 Nc6 Bg5 Qe2 d1R Qe6 Rd3 Bg7 Bd2 Nd4 Be1 Rg4 Bd2 Bg2 f1Q Rf4 Qe1 Bf1 f2 Rc7 Qe2 Rc5 Qe5 Qf6 Qe6 Re5 Be1 Qg5 Bd2 Qh6 Be1 Na3 Bd2 Rb1 a1B Nb3 Bac3 Nb5 Be1 Be2 f1Q N5d4 Bcd2 c3 Qf3 Na1 Qb7 Bf1 Qb2 Nab3 Qa1 Nf6+ Kf7 e8N Ke7 Ne4 Kd8 Kh1 h2 Nf6 Ke7 Ng4 Ke8 Kg2 h1N Kh2 h3 Nec5 Nf2 Ne3 Nfe4 Nd5 Qd8 Ne7 Qc7 Ref5 Qa5 Re5
2R3n1/1Np1q2k/1q2Bq2/5nPr/1r1r1n2/pb6/1N1B1RbR/RNbQK1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 f5 b4 Kf7 d4 Kg6 g4 h5 e5 a5 d5 c3 d6 c2 d7 h3 g5 h4 b6 a4 b5 h2 e6 f3 e7 h3 e8R f4 b7 f2+ Ke2 f3+ Kd2 Rh4 b6 Nc6 b8R Nd4 b7 Qe7 d8R Nf5 Ba3 c1N Bb4 Nd3 Qb3 Nf4 Qd3 Kh7 Kd1 Be6 Rbc8 Rb8 Ne2 Bb3+ Kd2 a3 Nec3 Bg7 Nd1 Bb2 Rg1 h1B Rf8 h2 Bh3 f1Q Rd6 f2 Rh6+ Kg7 Qc2 Qa6 Rff6 f1Q Ba5 Ne3 Be6 Nf5 Qd3 Qf3 Ke1 Bc1 Bd2 Qb6 Nb2 Bg2 Qe2 h1R Qd1 Rg4 Rh2 Rh4 Rff8 Kh7 Rf6 Ra8 b8N Ra4 Rff8 Rb4 Nd7 Qc3 Nc5 Qcf6 Rh3 Rh5 Rh4 Rh3 Nb7 Rd3 Rh2 Rdd4 Rfd8 Rdc4 Rd3 Rd4 Rf3 Bh1 Rff1 Bg2 Rf2
r3q1nK/pqk1q2p/B5B1/N1r4Q/n1BR1Brb/4R3/B2PbNnb/3N4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 Kf3 c5 Ke4 f5+ Ke5 c3 g4 c4 e4 c2 b4 f3 g6 f2 g5 f4 g7 c3 b5 a3 b6 f3 b7 a2 g6 Bc5 Nh3 Be7 Bb2 c1B Ba6 f1Q Nf2 c2 Nc3 Qg2 Re1 Bh4 Re3 Kc7 Qh1 Bf5 Ncd1 Bg4 Rb1 a1R Bd4 Qc8 Rb4 Ra4 Bc3 Ba3 Rd4 c1Q Bb2 Ne7 g8B Qe8 g7 Qc5+ Bd5 Bh5 g8B Nd7+ Ke6 Nb6 b8N Rc4 e5 Na4 Nc6 Rb4 Bf7 Ng8+ Kf5 Rc8 e6 Qce7 Ba2 Rc4 Ba1 Bd6 Na5 Ra8 Qh2 Rc5+ Qe5 Qh1 Qd5 Bh2 Qe5+ Qd6 e7 Qg2 Bfc4 Qh1 Ng4 f2 Qd5 f1N Ngf2 Qdd8 Ke6 Bf3 Qh5 Be2 Bc3 Qb7 Bb4 Qeb5 Kf7 Qbe8+ Kg7 Qdd7 Re5 Ne3 Re6 Ng2 Re3 Qed8 Bc3 Qdc6 e8B Qe7+ Bef7 Qce8 Bb4 Nh6 Ba3 Rf8 Bb4 Ng8 Kh8 Rc8 Ba3 Ra8 Bg6 Rf4 Bb2 Rg4 Ba3 Rd5 Bc5 Q7f7 Be7 Rc5 Bg5 Qfe7 Bf4+
4K3/n1R2r1r/1qRB2P1/k1Nbn2p/1B2p2r/Nr6/B2rQ1n1/bN1BbB2 b - - 0 1 illegal: No possible last move, all moves rejected
K1R1qBqR/2rb4/1NR2n1n/n1p1Q1pN/5rP1/b3N1N1/1N1bb3/bk5B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 dxc4 Qa4 exf4 Qa3 h4 Qg3 hxg3 e4 Kd7 Ke2 Ke6 Kf3 Ke5 b4 Kd4 h4 a5 e5 g5 h5 f5 b6 g2 b7 a4 b5 c6 h6 a3 h7 c3 b6 a2 e6 c2 e7 Bd7 e8N Qf6 Na3 Qe5 Ne2+ Kd3 Nd6 g1B Bg2 Ra7 Rh6 Bc8 Nac4 Ra4 Ba3 c1Q Bh1 Kc2 d4 Nd7 b8Q Qe8 d5 Be3 b7 Bd2 Nb2 Be7 Re6 Ndf6 Ng3 Nh6 Ndc4 Rg8 h8R Rg7 Rb1 a1B Qe5 Beb4 b8N Qe1 Qe2 Qg8 Nd7 Bd6 Re8 Bf8 Ndb6 Rc7 Qe3 Bfb4 Qc5 Qe7 Rd8 Qee8 Qa5 Be6 Rc8 Bd6 Re1 B6b4 Re4 Kb1 Ne3 Bc5 Rc4 Rb4 Ke2 f3+ Kd3 f4 Qb5 Bd6 Kd4 Ra4 Bb4 f2 Bc5 f1B Ba3 Be5+ Kc5 f3 Rc2 Be2 d6 Nd5 d7 Rf4 d8N Bd7 Bb4 Nf6 Ne6 Bec3 Ng7 f2 N2a4 Be5 N7h5 Beb2 Kd6 Ba3 Qe5 Be1 Kc5 f1N Nb2 Nd2 Rc4 Nb3+ Kd6 Bd2 Bc5 Ra7 Rc2 Ra5 Kc7 Ra7+ Kb8 Na5 Bf8 Rc7 Rc5 Qd8 Ka8 Qe8 Rd5 c5 Rd6 Rc4 Re6 Rf4 Rc6
Nnb3k1/3Nnb1b/r1Rbq1Bp/1RQ5/1nB2B2/B1K1N2r/bp2B2P/5q2 b - - 0 1 legal: proof: f4 g5 b4 gxf4 c4 a5 e3 axb4 c5 Bg7 c6 Bd4 exd4 dxc6 Nf3 c5 Ng1 c4 a4 Kf8 g4 b5 d3 c5 Kd2 e5 a5 f5 a6 e4 d5 b3 d4 e3+ Kc3 e2 g5 e1Q+ Qd2 b4+ Kb2 f3 g6 f2 a7 f4 d6 f3 d5 Qf6+ Qc3 Qee6 d7 Ne7 d8N Kg8 Be2 f1B g7 f2 d6 Bh3 d7 f1B Ra2 Bf5 Na3 Bg2 Bd2 Bd5 Nc2 Bd3 Ra1 Qf1 Ne3 Bb1 Ra5 Ba2 Qc1 c3+ Ka1 h6 Nf3 c4 Ne5 c2 Rb5 c3 Rg1 Rh7 Rg4 Rh8 Rc4 Rh7 Rc6 Rh8 Qd1 c1B Qc2 Ba3+ Bc1 Rh7 Qf5 c2 Qf2 Qf6 Ne6 Rh8 Nc7 Bf7 d8B Qe6 Nd7 Rh7 Bd1 Rh8 Bb2 c1N Be2 Nd3+ Bc1 Kh7 Qg1 Rf8 g8B+ Kh8 Bh7 Rg8 Qf2 Rg3 Bg6 Kg8 Qf5 Rh3 Qc5 Nf5 Bg5 Ne7 Bf5 Bb1 Bf4 Bc2 Ncd5 b2+ Ka2 Bb1+ Kb3 Ba2+ Kc2 b3+ Kc3 b1B Nc7 Nb4 Bfd3 N8a6 Bc4 Bh7 Bb2 Rb8 a8B Rb6 Bb7 Nb8 Na8 Ra6 Rd6 Ra5 Be4 Ra6 Rc6 Nc2 Qd4 Bd6 Qc5 Nb4 Ba3 b2 Bg6
2bbn3/R3N3/B1bBB1pR/1BB5/3q2NN/prb1q1r1/P1Q3nn/k2b3K b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 Kf2 Kd7 Kg2 Ke6 d4 Kd5 h4 b5 h5 a5 e3 f5 h6 c3 h7 g3 c6 g6 c7 a4 Rh5 c2 Rg5 a3 Rh5 f3+ Kh1 g2+ Kh2 f2 Bb2 c1Q Nf3 g1B+ Kg2 b4 Bb5 f1B+ Kh1 b3 Be8 Kc4 d5 f4 e4 Bg7 e5 Na6 e6 Be2 e7 Qe3 d6 Rb8 d7 Nb4 Be5 b2 Nh4 f3 Bf4 f2 Bd6 f1N Qc2+ Bc3 Bf7+ Nd5 e8B Nh2 Be6 Bd1 Rh6 Rb3 Nd2+ Kd4 Nc4 b1B Ne5 Ngf6 Ng4 Nf4 Qf5 Rf8 h8B Ng2 Qc2 Bf2 Rh7 Bfe1 Rg7 Ba5 Rf7 Bec3 Bg7 Rh8 Bgf8 Rh5 Re7 Rf5 Rh7 Rf3 Rf7 Rg3 Re7 Bb7 c8B Bc6 Ba6 Qb6 d8N Qa7 Qe2 Bf5 Qc2 Qc5 Rc7 Qc4 B8d7 Ne8 Ra7 Bb6 Nb7 Bd8 Na5 Bce4 Bdb5 Bc6 Bg8 Bc8 Be6 Be2 Rf1 Bd1 Rff7 Qc5 Rh7 Qd5 Rh6 Qc5 Qf5 Qc4 Qc5+ Kd3 Bfe7 Kc2 Qf5+ Kb2 Qc2+ Ka1 Bf8 B6b7 Nc6 Qcd4 Bc5 Ba8 Bfd6 Bab7 Ne7 Bbf3 Ne5 Bc6 Ng4
2q1qb1R/kr1rn1N1/p1B5/qQ2q1BB/1R1B1B1b/3b3K/1P2nRpN/7q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 Kg2 d5 c4 Kd7 e4 Kc7 h4 Kb6 h5 f5 e5 g3 h6 f3+ Kh3 f4+ e6 g2 h7 a6 c5+ Ka7 c6 g4+ Kh2 g3+ Kh3 f2 c7 d3 Nd2 f3 Nb3 d4 Bd2 Qe8 Bf4 d2 Na5 d3 Ra3 Nc6 Nb7 Rb8 Nd6 Rb7 Rb3 Nd4 Rb4 Ne2 Rh2 Ne7 Qa4 d1Q Nf5 d2 Ng7 Qc2 Bg5 d1Q Qb3 Rg8 h8B Qa1 Qd3 Bd7 c8R Qa5 Rd8 Qc8 b6+ Ka8 Qb3 Bb5 Qa4 Rd7 b7+ Ka7 Qb3 Bd3 b8B+ Ka8 Bbf4 Ka7 Nf5 Rb7 Bc3 Rg7 Qa4 Nc1 Be2 f1Q Qb3 f2 Bh5 Ne2 Nf3 g1B+ Rg2 Qe5 Nh2 Qe1 Qd5 f1Q Qb5 Qf3 Rf2 Rf7 Ng7 Qh1 Bcd2 g2 Bc3 Nf5 e7 Qa1 Rd6 Qa5 Rh6 Rd7 Rh8 Rb7 Rf3 Be3 Rf2 Bd2 Rf1 Be1 Rf3 Bh4 Rf2 Qed7 e8B Ne7+ Ne6 Qdd8 Bc6 Rd7 Ng7 Qe8 Bb7 Rf6 Bd5 Rb6 Bc6 Rbb7 Bd4+
1bqnq3/4qrp1/RBkqN1n1/2NB3K/3Qr3/1bP3p1/nq1R1NBB/B7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 b4 d5 e4 Kd7 h4 f5 b6 d3 b7 f3 Kg3 f4+ Kh2 f2 b5 d4 h5 a4 h6 f3 Kg3 d2 h7 a3 e5 a2 b6 d3 e6+ Kc6 e7 Ra7 Kh4 Be6 Nh3 Bb3 Rh2 Qe8 Bg2 f1Q Nf2 Qe1 Nc3 Ra4 Bb2 Re4 Na4 Qe3 Rc1 a1Q Nc5 Qb1 Bf6 Qb2 Ra1 Qe2 Qg1 d1N Ra6 d2 Bd4 Qc8 Kh5 Nc3 Qd1 Na2 e8B+ Nd7 b8B Nh6 Bc3 Bd6 Ba7 Rf8 h8N Rf7 Ng6 Bb8 Nf8 Qe1 Qa1 d1Q Nfe6 Qd6 Qd1 Qe7 Be5 Qb4 Qd4 Qb5 b7+ Qb6 Nh1 f2 Bf6 f1Q Nf2 Qe1 Be5 Rf3 Bf7 Nf8 Bg8 Rf7 Bf6 Bg3 b8B Ng6 Bf4 Kb5 B6e5 Qbd6 Bb6 Kc6 c3 Rf6 Nf8 Qee8 Bf1 Qbb1 Nd1 Re2 Be6 Qdc7 Bc1 Nf7 Bc4 Nd8 Bb2 Rf7 Ba1 Qb2 Bh3 Re3 Rd2 Qe2 Bf4 Qh2 Be5 Qce7 Nfe6 Re4 Nf2 Bf4 Bf6 Bb8 Be5 Qf4 Bg2 Qg3 Bf6 Qgc7 Be5 Qcd6 Bh2 g3 Bd5+
2B3QK/2b1bP1R/4nR2/2NnBpb1/b2q4/5bkN/4prBn/RBr1q1B1 b - - 0 1 illegal: No proof kernel
1Qq3RB/2B2pK1/1p1b1N2/1N4nB/5nnB/q4PNk/b1q2qB1/1q1r1rR1 b - - 0 1 legal: proof: e4 g5 b4 d5 h4 gxh4 b5 dxe4 b6 Qd3 a4 Qd5 a5 Qd8 a6 cxb6 axb7 Bg7 Ba6 Bh6 Bf1 Bf8 Ke2 Kd7 Ke3 Ke6 Kf4 h5 Kg5 a5 g4 a4 c4 e3 d4 e2 c5 e1Q c6 a3 c7 h3 Nc3 a2 Bb2 h2 Nf3 h4 Ba6 h3 Qb1 Nd7 b8B Nc5 Qc2 Nf6 Qh7 Nd3 Qg8 Nf4 Bb7 Qc1 Bc6 Qc2 Ne4 Bb7 Rac1 a1Q c8B+ Qd7 Rhe1 h1Q Bc7 h2 Re2 Rh7 Qh8 Rg7+ Kh6 Qe1 g5 Kf5 g6 Kg4 d5 e5 Nd4 Kh3 Nb5 h1Q Bd4 Rg8+ g7 Bd6 Bc3 Re8 g8N Ra4 Rd1 Rd4 Re3+ Qf3 Ng3 e4 Bb2 Qed2 Rg1 Qab1 Ra3 e3 Ra8 e2 Bc3 Be5 d6 e1N Rb8 Qfd3 Bh1 Bd5 Bb2 Qg4 d7 Ba2 d8B Nf3 Bf5 Q2e2 Bg6 Bd6 Bh5 Qa3 Bc3 Rd1 Ra8 Nd4 f3 Qf2 Ba1 Nde6 Be7 Ne4 Bh4 N6g5 Bg7 Nf6 Rc8 Nd7 Nf6 Ree1 Qd8 Qgf5 Bh8 Ne5 Kg7 Rf1 Rb8 Ng4 Qc8 Be6 Qb7 Bb3 Rg8 Ba2 Qb8 Qc8 Bg2+
4b1N1/1kRpqb2/pP2rB2/1b1Qq3/1r1bNRK1/3BBn2/q1N2b2/1B3n1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 b4 g5 c4 f3 Kg3 f2 h4 d3 e4 d2 e5 a6 e6 f4+ Kg2 f3+ Kg3 Nc6 c5 Ne5 e7 Bg7 c6 Bb7 c7 Rb8 c8B Nf6 b6 Nh5+ Kh2 g3+ Kh3 g2 b5 Ng3 h5 Bd5 h6 Bf7 Ne2 g1Q h7 g4+ Kh4 Rg8 h8B Qg2 b7 Qc7 Qb3 d1B Nd4 Bf6+ Bg5 Rg6 Bd3 f1Q Ra4 f2 Qd5 Qe2 Nc2 Nf1 Nc3 g3 Ne4 Nf3+ Kg4 Bd4 Rh6 Re6 Bhf6 Qe5 Be3 Qh2 Rc4 g2 Rc6 g1B Rh4 Ra8 b8N Ra7 Rh5 Rb7 Rf5 Qh7 Rf4 Qd2 Nb4 Qa2 Bb1 Rb6 Bb7 Be2 Nc2 Bd3 Nc5 Bdg6 Ne4 Ng3 Rc3 f1B Nc6 Bf2 Ba8 Rb8 Bb7 Be2 Rc4 Nf1 b6 Rc8 Nb8 Rc5 Nc6 Rb5 Rc5 Rb4 Ba8 Bg8 Rc3 Bb5 Rc5 Kf7 e8B+ Kf8 Ne7 B8f7 Ng8 Qg7 Bg5 Qgf6 Rc6 Qg7 Ngf6 Ke7 Bh4 Kd8 Ng8+ Qgf6 Bg5 Qe7 Bf6 Bh5+ Kh3 Bb2 Nc5 N3d2 Qd3 Bfg6 Rc7 Bh7 Bh1 Nf3 Qd5 Bd4 Rc6 Be4 Bg6 Bf5+ Rg4 Be4 Bh7 Beg6 Rf4 Be8 Bd3 Bhg6 Ne4 Bgf7 Rd6 Kc8 Rc6+ Kb8 Kg4 Kb7 Rc7+
3n4/KBNpP2B/1p4q1/bkBqN3/2NQnnrn/8/2bR3r/2rn1NNR b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 g5 a4 f5 c4 b3 h4 b2 e4 f3 e5 f4 a5 d3 a6 g4 h6 d2 e6 b6 h7 Ke7 c5 Nc6 a7 Nh6 h5 Nf5 h6 Nh4 Qa4 Ba6 Ra2 Bd3 Qd4 Bc2 Bd3 d1N+ Kf1 f2 Ke2 f1R Be3 g3 Nd2 Rc8 a8N b1Q Nc7 g2 Bf2 Rg8 h8N Rg4 h7 Bg7 Rb2 Qg8 Nf7 Nd8 h8N Ra8 c6 Ra2 Ne5 Qf7 Nd5+ Kd6 c7 Bf8 Nec4+ Kc6 c8B Bb4 e7 Ba5 Nc7 Qd5 Rb4 Rb2 Nf7 Ra2 Bh7 Rb2 Ne4 f3+ Kd2 Re1 Ng3 Rf1 Be3 f2 Ke2 Ra2 Rb3 Rb2 Rd3 Ra2 Rd2 Rb2 Na8 Kb5 Bb7 Ra2 Nf3 Rg1 N7e5 f1N Nc7+ Kb4 Rd3 Nd2 Nf1 Ne4 Rd2 Ka4 Rh3 Rh1 Ng1 Ra1 Qc3 Rh2 Bc5 Qb5 Qd4 Qbc6 Rg3 Rc1 Rh3 Bb3 Kd3 Qg6 Ngf3 Rh1 Rh2 g1N Rh3 Ne2 Ng1 Nf3 Rh6 Rh2 Rh4 Rhg2 Rh3 Nh4 Rh1 Rh2 Nce3+ Bb4 Nb5 Qdc6 Nc7 Bc2+ Kc4 Nf4 Na6 Ka3 Nc7 Qd5+ Kb5 Kb3 Ka6 Ka4 N3c4 Bc3 Ne6 Ba5 Ka7 Kb5 Nc7+
3r2qb/1b2b1N1/1N3R2/3nNK1k/n1rbB1p1/4P2n/qp2N1Q1/1qB1NBR1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 g5 a4 b5 h4 f5 d4 Kf7 d6 Kg6 d5 c5 d7 g3+ Kf3 g4+ Kg2 b3 a5 c4 a6 b4 d6 c3 a7 b2 Ra2 c2 Ra6 b3 Be3 c1B Rb6 Nh6 Qe1 Na6 Qa5 Kh5 Na3 b1Q Nf3 Bb2 Rg1 Bb7 Bc1 Qa2 Nc4 Nf7 Qd2 Rc8 a8B Be7 Qd5 Qe8 d8N Nc5 d7 Na4 Ne1 Qg8 Nc6 Ng5 d8N Nh3 Ne6 Bc3 N6e5 b2 Rc6 Bd4 Nb6 f3+ Kh1 f2 Kg2 f4 Qe4 Kh6 h5 Bc3 Rd6 Rc4 Ng7+ Kg5 h6 Kh4 h7 f3+ Kh1 g2+ Kh2 Bd4 Rf6 Bc3 Ne6 Kh5 Kg3 Bd4 Rh1 g1B Qc2 Bc8 Be4 Bb7 Qd2 Qb8 Qc2 Rd8 h8N Qa8 Nhg6 Bc3 Bg2 f1Q Qd2 Be3 Rg1 f2 Qd5 Bed4 Qc6 Ng5 Kf4 Nh3+ Kf5 Qb8 Nc2 Qd1 Ne1 f1N Qd5 Qc2 Qc6 Qcb1 Ngf4+ Kh4 Ng7 Ne3+ Kg6 Nd5 e3 Qa8 Bf1 Qc8 Ne2 Qe6 Ne8 Qg8+ Kf5 Kh5 Bc2 Nb4 Qg2 Nd5 Be4 Bcb4 Re6 Bf6 Rd6 Bh8 Rf6 Be7 Ng7+
B4r2/n1B2R2/r3NQ1K/4q2R/3P1pqN/NkpN2q1/2RnN3/rr1bbb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 g4 Kd5 b4 a5 d4 h5 b6 c5 b7 f5 b5 a4 b6 a3 e3 a2 g5 c3 g6 c2 g7 c4 Bd3 h3 Bd2 c1Q Ba5 h4 Qf1 h2 Na3 h3 Ne2 Qc3 Rc1 a1R Rc2 Nc6 b8R Ra6 b7 Bb4 Bc7 Nf6 g8N Ne4 Nh6 Qh4 Ra8 Rf8 b8N Qe7 Nd7 Na7 Nc5 Qe5 Rb8 Qb3 Rb7 Be1 Qf2 c3 Qh4 Qb5 Qf6 Qd7 Bb5 Qg7 Be8 Bd7 Nd3 Ba4 Bg6 Nd6 Be8 Nc4 Bh5 Qg8 Bg6 Qge6 e4+ Kc6 Nec1 Bg3 Rd2 Qc5 e5 Kd5 Rg1 h1R Ba5 h2 Ne2 Bh4 Rg4 Rhb1 Rg5 Bd1 Rh5 Be1 Rc2 Qec8 e6 Nd2+ Kg2 f3+ Kh3 h1B e7 f2 Kh4 f1Q+ Kg5 f4 e8N Qd6 Ng7 Qe5+ Nhf5 Qh3 Kh6 Qg3 Nh4 Bg2 Rf7 Bf1 Bc7 Qch3 Ne6 Qhg4 Nb5 Kc4 Be4 Kb3 Na3 Q3f3 Bc6 Qfg3 Ba8
rnB1bq1b/1Nrk2B1/1nq1b2K/1qQ2pN1/R1b1P1RR/r5pN/8/N4N2 b - - 0 1 illegal: No possible last move
1b4Rn/4qbRb/4nkNK/RpB2q2/6q1/2Rr2R1/B1P1Np2/1qQrBr2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 f5 a4 d5 h4 g5 e4 b5 e5 b3 e6 g4+ Kg2 f3+ Kg3 d3 Kf4 d2 Kg5 b2 a5 f2 a6 g3 h6 d4 h7 f4 h5 d3 h6 f3 a7 g2 Rh5 Nc6 Rh3 Nd4 Na3 b1Q Ne2 g1Q+ Rg3 Bg7 Ra2 Be5 Nc4 Bb8 Ra5 Bd7 Bh3 f1Q Ne5 f2 Kh5 Kf6 e7 Bf5 e8R Ne7 Ba3 Ng6 Rg8 Ne6 Qc1 d1B Bc5 d2 Rg7 Qe7 Bg4 Rf8 h8B Rd8 h7 Rd3 Kh6 Qh3+ Bh5 Be4 Ra3 Qgg2 Rc3 Qf5 Bg4 Qgf3 Bh3 Q3g4 Bg2 Bc6 Bd5 Be8 Ba2 Bf7 Nd4 Bf3 Ne2 Ngf4 Ng6 d1R Be3 Be4 Bd4+ Be5 Bc5 Re8 a8R Bb8 Ra6 Red8 Ra5 Rf1 Re3 Rdd1 Rg3 R8d3 Nf8 Bd5 Rb3 Qe5 Rg6+ Kf5 Rba3 Qe4 Bc3 Bc6 Rg7 Ng6 Be1 Kf6 h8R Qe5 Be3 Be4 Rhg8 Nh8 Rc3 Bh7 Bc5 Qef5 Ng6
2k3Nq/b1b3Q1/4r2q/1p2R2n/N1BP1rNb/1n2q2R/2Bp1BN1/N2r1b1K b - - 0 1 illegal: No proof kernel
3r2b1/B1N2r2/5pkN/2bqnr2/Q2b1Nn1/1p1qN2K/1N1rq1P1/RRR2B2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 a4 h5 e4 c5 d4 f6 a5 Kf7 e5 h3 d6 f3 Kg3 c4 d5 h2 d7 c3 e6+ Kg6 a6 f2 e7 c2 e8R h4+ Kg4 h3 a7 b3 d6 b2 Re4 b4 Qd4 b3 Nc3 b1Q Nce2 Rh5 Ba3 c1B Ng3 Bb2 N1e2 Rf5 Nc1 Nc6 Bc5 Qd3 Qa4 Bd4 Re1 Ne5+ Kh4 Qa5 d8N Be6 d7 Nh6 Nf7 Rd8 a8N Nhg4 Ba7 Bfc5 Nh6 Bg8 Nc7 Qe2 Rg1 h1R Nd3 h2 Rec1 Qb5 Rcb1 Qc4 Kh3 Qd5 Nb2 Qd3 Be2 f1Q Rc1 Qfd1 Rcb1 Q1c2 Rgc1 Rd1 Bf1 Qcd2 Ra3 Q2e2 Raa1 Rb8 d8N Rd2 Nde6 Rd8 Kh4 Rf2 Ngf5 Rf4 Ne3 h1R+ Kg3 Rf5 Nf7 Rh8 Nh6 Rh7 Kh3 Rf7 Nf4+
K4RN1/3BrBb1/3P2R1/1n1Brqb1/p4rk1/p1B3N1/qr4QB/2nnNb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 Kf3 h5 Ke4 c5 b4 a5 d4 f5+ Ke5 h3 g4 f3 e4 f4 b5 h4 g5 a3 b6 c4 g6 h2 b7 c3 d6 c2 Kd5 a4 g7 h3 e5 f2 Ba6 f1R Bd2 c1B Kc5 Ke6 d5+ Kf5 e6 f3 e7 f2 e8B Nc6 b8B Na7 Bb7 Nf6 g8B Nh5 Ba5 Bg7 d7 Ng3 Bgf7 Ne2 Nc3 Kg4 Qd2 Rh5 Nf3 Re5 Ne1 Nb5 Kc6 Ra7 Ne4 Qe7 d8N Qe6+ Bd6 Qf5 Ba8 Rae7 Bd7 Ba6 Ng3 Rg1 Bdc7 f1R Bc3 Rg2 Rg1 h1Q Kb6 h2 Nc6 Rf4 Qb2 Nbd4 Ka7 Nb5+ Kb8 Bd2 Bb7 Rgf2 Ka8 Qg2 Rc1 h1N Rb1 R7e6 Ne7 Nc1 Ng8 Re7 Qc2 Be3 Qe4 Qh2 Qg2 Rb2 Bbc6 Nf2 Bd6 Ra2 Rb2 Nd1 Rf2 R5e6 Bde5 Rb2 d6 Bd2 Bed4 Re5 Bcd5 Rfe4 Rf3 Bg5 Be3 Rc4 Bf4 Rce4 Qh1 Qc2 Qg2 Qb1 Rf2 Qa2 Bfe6 Nd4 Qh1 B5f6 Be3 Bf1 Qh2 Bh4 Nh1+ Kh5 Rg6 Nb5 Bf4 Qf7 Qg2 Bg5 Bh2 Rc4 Rff6 Rf4 Ng3+ Kh4 Bh3 Qe6 Rf8 Qf7 Bhe6 Qf5 Bf7 Kg4 Rd8 Rbe2 Rc8 Rb2 Rf8
1Rk1n1n1/8/1pn1rQ2/rB1pB1K1/1qPb1NRR/1bB5/4B2B/q1bbN1r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 e5 c4 d5 g4 Kd7 f4 h5 a4 e4 f6 h3 g5 h2 g6 h4 a5 b3 f5 h3 g7 b2 f7 b6 f6 d3 Ke3 d2 Kf4 e3 a6 e2 a7 e1B Nf3 Rh4+ Kg5 Bc5 f8B Nc6 Nc3 b1N Ne2 Qe7 Bb2 Rh6 Bc3 Bd4 Nf4 Qb4 f7 Na3 Be2 Nb5 Bd6 Re6 f8B Nc7 Be5 Ne8 Bfd6 Kd8 Qb1 d1B Qb2 Bd2 Ne1 Bc1 Ra4 Bb3 Ra6 Nge7 g8R Kd7 Rg6 Ng8 Rg7+ Kd8 Rb7 Bd7 Ra2 Kc8 Rg1 h1Q Rg4 h2 Bc7 Rb8 a8B Qf1 Qa1 h1R Rd2 Bd1 Rd3 Rg1 Rh3 Nd8 Rh4 B7a4 Qb1 Nc6 Qf5 Bac2 Qf6 Bb3 Ra7 Nce7 Bc6 Ra8 Rb7 Ra5 Ba4 Nc6 Bb5 Bb2 Nfg2 Ba3 Bh2 Bc1+ Nf4 Qf3 Bd6 Qe4 Bb8 Qb1 Be5 Qa1 Rb8+
3B4/1N2r1np/R2b1BR1/qQb1np2/N3k3/r4b1q/2BBbP2/qnB1N1K1 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 Qd2 dxc4 d5 Be7 Qc3 Bf8 Qd4 exd4 g4 Kd7 e4 Kd6 b4 Ke5 d6 a5 b6 f5 d7 c5 b7 a4 b5 h3 b6 h2 g5 d3 g6 d2+ Ke2 d1N g7 c3 Ba3 c4 Bb4 c2 Nc3 a3 Na4 c1B Bd2 Nf6 g8Q c3 Qb3 c2 Qb5+ Bc5 Ra2 Qc7 d8B Nbd7 b8B Re8 b7 Re7 Ba7 Nh5 b8B Kd4 e5 Ke4 e6 Qa5 Nf3 Ng7 Be5 Ba6 Rg1 h1B Bf6 Ne5 Rg6 Nc3+ Ke1 Bd6 Bae3 Nb1 Bg2 Bb2 Kf1 Bd4 Kg1 c1Q+ Bf1 Bb6 Ne1 Qcc3 Bh6 Bbc5 Bd3+ Kd5 Bhf4 Bf3 Bc2 Qd3 Ra1 a2 Bc1 Ke4 Bfd2 Rea7 e7 Rd7 e8N Re7 Bd1 Qe3 Qb3 Bae2 Bc2+ Qd3 Qb5 Nc3 Rb1 a1Q Rb3 Nb1 Rc3 Ba3 Rc6 Bac5 Ra6 Rb8 Qd7 Rb3 Qb5 Ra3 Bh4 Bh1 Bb3 Qh3 Bf6 Bc7 Bd1 Bhf3 Nd6+ Kd5 Nb7 Ke4 Bb3 B7d6 Bc2+
1b1rq1r1/1bnR1rP1/1N2Nqk1/R5p1/2B1BQnB/3K1bbq/1p6/N2BB3 b - - 0 1 illegal: No proof kernel
qR2B2K/1B1b2p1/1bk2q1Q/1b3B2/bp1RnR2/1N4rP/3qNBr1/2n2Bn1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 b5 Kf3 d5 e4 Kd7 Kg4 f5+ Kh3 b3 c4 b2 a4 d3 a5 b4 c5 f3 a6 f4 Kg4 f2 Kf5 d4 Kg6 d2 e5 d3 a7 f3 e6+ Kc6 e7 Na6 e8B+ Bd7 h6 Nf6 h7 Ne4 Be2 f1B Qc2 d1B Be3 f2 Qc1 Ba4 Nd2 b1N Nb3 d2 h3 d1Q Ra2 Nbc3 Rd2 Bd6 Bd4 Rf8 h8R Rf3 Kh7 Rg3 Rg8 Bc7 Kh8 Rg2 Bc4 Rg3 Ne2 Bb6 Be3 Rc8 Rd4 Qd2 Rg1 Rc7 Rg2 Qa8 Bd3 Rf3 Rg4 Rg3 Rf4 Rg2 Bh5 Rg3 Rb8 Rg2 Be8 Rc8 Ng3 Ne2 Bc4 Ng1 Ne2 Kc7 c6 Nac5 Ba6 Nd3 Bc4 Qb7 a8B Rg3 Qe1 Nc1 Bb5 Qa7 Bb7 Qa6 Qd1 Qa8 Qc2 Rg2 Qc4 Rd8 Qe6 Rc8 Qh6 Rd8 Ng3 Bd3 B5a6 f1Q Ne2 Qf3 Bf2 Bdb5 Rh4 Qf6 Rg4 Rc8 Rf4 Kd8 c7+ Ke7 Bd5 Kd6 Be6+ Kc6 Bf5 Rd8 c8B Kc7 Bcb7 Rc8 Bd5 Kd6 Bab7 Rc3 Bde6+ Kc7 Bc4 Rcg3 Nc3 Nf3 Bf1 Ng1 Ba6 Kc6 Ne2 Ba5 Bc8 Bb6 Bb7+
R4Qr1/nB1NNpNR/8/3nN3/1BrN2K1/pnb1q3/4kPbq/q1r3qB b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 Kd7 d4 Kd6 c4 e5 g4 a5 g5 h5 b6 e3 Kf3 h3 g6 e4+ Kf4 b3 d5 Kc5 b7 h4 g7 b2 d6 e2 d7 e1Q Qf3 Kd4 c5 a4 c6 e3 c7 h2 Qh5 e2 Ra3 h3 Re3 a3 Kg3 Bb4 Qb5 Qh4+ Kf3 Ne7 g8N Bc3 d8N Ra4 Nd2 b1N Qe8 Nd5 Qf8 Rc4 Bg2 Nc6 b8N Na7 Re8 Kd3 Ne6 Bb7 Ne7 Rg8 c8B Qf1 Bb2 e1Q Ne2 Qg1 N2d4 Qg5 Ng7 Qge3+ Kg4 Bc6 Nb3 Nd2 Na5 Qa1 Nd7 Ba8 Nac6 Nb3 Nce5+ Kd2 Kh5 Bc6 Bb7 Kd1 Nb5 Ke2 Ra8 Qgb1 Rd1 h1R Bc1 h2 Bd2 Rf1 Bh1 Qc1 Be1 Qcb1 Rd4 Qg6+ Kh4 Qg1 Bd2 Rc1 Kh5 Bb2 Rh4 Bd4 Bb4 Bc3 Bg2 h1Q Nd4+ Kd1 Kg4 Qhh2 Rh7 Kd2 Kf5 Ke1 Bh1 Kd2 Nde6 Ke2 Be4 Nf4 Bh1 Bg2 Kg4 Nd5+ Nd4+
B7/1r3p2/5Br1/NR1Pn3/pb2R1NB/R1n2QK1/Bb1q3n/rBrb1k1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 Kd4 d3 c5 e5 h5 b6 a5 b5 h3 e6 a4 b7 h4 g5 f3 b6 h2 g6 h3 e7 c3 e8B c4 g7 c2 Bb5 c3 Nd2 Bg4 Bg2 Ne7 g8B Nd7 b8B Ne5 b7 Ra6 Ra3 Rg6 Kg3 Ke3 d4 f2 Bh7 Nd5 Bb2 c1B Nb3 c2 Nf3 Bb4 Bc4 Nc3 Na5 Qg5 Rg1 h1Q Ba2 h2 Bd6 Rb8 Be7 Qh6 Bh4 Qg5 Ba1 Bb2 Rf1 c1R Rg1 Ra8 b8R Ra7 Rb5 Rb7 Qb3 Kd3 Re1 Qd2 Re4 Bh5+ Rg4 Ke2 Qd5 Rg7 Bhb1 Rg6 Qb3 Qhd1 Qd5 h1R Nh2 Qg1 Qb3 Qge1 Bc6 Qed1 d5 f1N+ Kh3 Q1e1 Rd4 Rhg1 Ng4 Nh2 Rc4 Kf1 Re4 Re7 Ba8 Rb7 Nh6 Bd1 Ng4 Rg2 Rc4 Rf2 Kg3 Qe4 Rd4 Qh1 Re4 Rf4 Qc2 Rf2 Qd3+ Re2 Qe3 Re1 Qf3+ Qf2+ Kh3 Nd7 Nc6 Bb3 Bg3 Ne2 Bb8 Rc5 Qe3 Bc1 Bf6 Bb2 Bg3 Ne5 Bc2 Ra1 Bcb1 Bd1 Bgh4 Rc1 Na5 Nc3 Qg3 Qd2 Qe3 Rg8 Kg3 Rg6 Qf3+
R2Rr3/1R1qp3/3k2Nr/rn1n2K1/1b2qB2/1N1BqRp1/1PQ2R2/B1nr1b2 b - - 0 1 illegal: Other
b1K5/2p2rB1/3N3N/RR2bPb1/BNq4n/k2Q4/bq1NpBNq/r1r2n2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc3 Kc5 f4 a5 g4 h5 b3 h3 f5 e3 b6 e2 g5 e1B g6 h4 b7 a4 g7 a3 Qh5 e4 Qe2 h2 Bb2 e3 Qd3 a2 Ne2 h3 Nf4 Be7 Ng2 Nd7 b8B Ngf6 g8N Ng4 Nh6 Nde5 b4+ Kb5 Rg1 Ka4 b5 h1Q b6 h2 b7 Rf8 Ba7 Nf3 b8N Qd5 Nc6 Rf7 Nb4 Bg3 Be2 Nh4 Bd1+ Kb5 Bb6 e2 Bf2 Ne3 Ba4+ Ka5 Rc1 Nf1 Re1 Qe6 Kd4 Bg5 Kc5 c3 Rd1 c2 Bg7 Qb3 Kc6 Be6 Kb7 c1R Re1 Ra6 Kb8 Bd5 Kc8 Be5 Rd1 Qc4 Re1 Rc2 Rc1 Rc3 Rc2 Ra7 Rb2 Rc1 Bc6 Qg4 Qb3 Ng6 d4 Be7 Nc2 Nh4 Qd3 Bg5 Nd2 Bb3 d5 Qc4 d6 Qg1 d7 h1B d8N Qh2 Nge1 Bg2 Bb5 Ba8 Ng2 Ra6 Nce3 Kb4 Nb7 Ra7 Nd6 Ra5 Rab1 a1Q Ra2 Ra6 Be8 Rc6 Ra7 Ra6 Bd7 Ra2 Ba4 Ka3 Ra5 Qac3 Nd5 Ra1 Rb2 Ba2 Rbb5 Q3b3 Nb4 Qbc3 Qd4 Qb2 Qd3+
Nn1RQR2/q1p1r2B/1q1nb2b/2p5/r3nB2/b3b1q1/kBB4P/N2K2BN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 d6 Qc2 dxc5 Qb3 Rh7 Qd1 Rh8 e4 Ke7 d4 Ke6 b4 a5 d5+ Ke5 b6 f5 b5 g5 b7 a4 d6 a3 b6 a2 d7 f3 Qe2 Kd4 e5 f2+ Kd1 f4 e6 g3 e7 f3 e8B g2 Nd2 Kc3 Nb3 g4 Bg6 g3 Bh7 Qf6 d8B Ra4 Nh3 g1B Bf4 g2 Qe8 Kb2 Bfd3 f1N Nf2 Nh6 Bc2 Ng3 Be3 Qc6 Bdg5 Ne4 Bgf4 Be6 Rb1+ Ka3 Na1 Nf7 Rb4 Bg7 Rd4 Bh6 Rd8 Nfd6 Bd4 Rg8 Bde3 Rg7 Bd4 Na6 b8N Re7 b7 Qb6 Nd7 Nb8 Bde3 Qa7 Nb6 Kb2 Na8 Ka3 Nb3 a1B Bd4 Bb2 Na1 Ka2 Bde3 Nd7 b8B Ba3 Bd4 Qb6 Ba7 Nb8 Bde3 Qa5 Bb6 Qa7 Ba5 Qb6 Nd3 f2 Bc3 Qa7 Bb2 f1Q+ Ne1 Qb5 Nd3 Bf2 Rf1 g1Q Bed4 Be3 Nf2 Qbb6 Nh1 Qg3 Rf3 Bd2 Bg1 Bc1 Bg5 Bd2 Rf8 Be3 Bf4
N5nB/qB5R/4Nr2/bbQ1Brp1/3r1P2/1nBNK1k1/Rp1n2r1/5Brr b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 h4 Kg6 f4 Kf5 d4 g5 a4 b5 a5 e5 a6 c5 a7 e3 d6 e4 h5 c4 d7 b3 d5 g3 h6 Kg4 d6 c3 h7 c2 Rh3 g2 Rh5 b4 Ba3 c1R Nh3 g1R Qd4 b2 Qg7 b3 Qf7 Rc4 Rh4+ Kg3 Bc5 Rg2+ Nf2 Ba6 Qg6 Qa5 d8N Bb5 d7 Na6 Nd2 b1N Qg7 b2 Bd6 Rd4+ Nc4 Nd2 Rh1 Nc5 Qe5 Ncb3 Ne6 Bg7 Rh4 Rf8 d8B Rf6 a8B Qa7 Ra2 Bf8 B6c7 Bb4 Bb7 Ba5 Qc5 Rf5 Be5 Rf6 Kd1 e2+ Kc2 e1R Nb6 e3 Na8 e2 Nd3 Rf5 Bdf6 Rd1 Bg7 Rd6 Bc3 e1R Bge5 Rb6 Nd4 Rbf6 Ne6 Rg1 Rh5 Re2 Rh4 Reg2 Rh6 Ne7 Rh4 Rd8 h8B Ng8 Rh7 Rd4 Nc1 Rc4 Kd3 Rd4+ Ke3 Rh1 Nd3 Re1+ Be2 Reg1 Bf1
b2B1Bbk/2pR1r2/r3BrB1/1NRn2B1/1r2p1KQ/r1P4n/3N1Rb1/3r1q2 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Bg2 Bh6 Bh3 fxg4 Bf1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bf5 Ne2 Be6 Ng1 Bc8 Ke2 Kf7 a4 Kg7 f4 h5 d4 b5 d5 e5 f5 b3 g6 b4 a5 g2 a6 e3 c3 h4 d6 g3 Kf3 e2 a7 e1R d7 b2 Bd3 h3 Bc2 b3 Qd3 h2 Qe4 Rh6 f6+ Kh8 f7 Na6 f8B Nf6 Qb4 e4+ Kf4 Nd5+ Kg4 Nc5 Kf5 Qf6+ Kg4 Qf1 Bd1 Ne6 d8B Bb7 Ra5 Nef4 Rb5 Nh3 Ne2 g1R Bf4 g2 Nd2 b1R Nd4 b2 Bf3 Red1 Rc5 Ra1 Be3 b1B Nb5 Ra3 Beg5 Ba2 Qb1 Rb8 a8R Ra6 Ra7 Ba8 Be2 Rf6 Ra3 Bb3 Ra2 Rh7 Qd3 Rhf7 Qg3 Ra1 Rc2 Ra3 Qe1 Rbb6 Ra2 Rba6 g7+ Kh7 g8B+ Kh8 Qh4+ Rh7 Ra1 Qc1 Nc4 Nb4 Ra2 Re1 Bd1 g1R+ Rg2 Rgf1 Rhg1 h1B Rf2 Bg2 Kg3 Re2 Bf7 Rb2 Bg6 Qb1 Kg4 Qa1 Nd2 Bg8 Bb3 Rfb1 Nf3 Rd2 Qg3 Rhf7 Be6 Rbb2 Re1 Rdd7 Ree2 Qf1 Rd2 Rb1 Rdd5 Rd1 Rd3 Rd4 Nd2 Rc4 Rd6 Nd5 Rd7 Rb4 Qh4+
2bBQ1Bn/1RnRn2N/r3k3/1N1b2rn/3Pp2K/2bBBp2/5B2/Nnb1q3 b - - 0 1 illegal: No possible last move, all moves rejected
RB1k4/1Br5/4Bq2/bn1nn2p/p1P1Kn1N/2Q4b/1R1RNR1r/1Rnr1r2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 a5 b4 f5 c4 f3 e4 h3 g4 f4 g5 h2 e5 f2 b6 a4 g6 f3 g7 Qf6 b7 Nd7 b8R Kd8 b5 Bb4 e6 Ra7 b6 Ne5+ Kc2 Ne7 g8B N7g6 b7 Nf4 Qe2 Ba5 Bg2 f1R Qe1 f2 Qc3 d3+ Kd2 h6 Ke3 d2 Ra8 d1R b8R d4+ Ke4 d3 Nd2 Rc7 Ndf3 d2 Ne2 Rhh7 Rg1 h1N Rab1 Rh8 Nh4 Ng3+ Kd4 Rhh7 Bb7 Rh8 Rg2 Rhh7 Ng1 Nge2+ Ke4 Rh8 Bb2 Nc1 Ne2 h5 Bh7 Rf8 Bg8 Rh1 Rh2 f1N Rf2 Rh2 Ba3 Ne3 Bd6 Ned5 e7+ Kd7 e8R Rf7 Re7+ Kd8 Bc6 Rf8 R8b2 Rf7 Bb7 Rf8 Ra6 Bh3 Rd7+ Ke8 Rg7 Qf5+ Kd4 Rc6 Rf3 Re1 Ba3 Kd8 Be6 Rg8 Rd3 Qf6 Bd6 d1N Qd2 Rg1 Rg2 N1c3 Bb8 Rc7 Ra8 Rd1 Rf2 Nb5+ Ke4 Rgg1 Qc3 Rgf1 Rdd2
R3k1b1/1nbn1R1B/1NBr1B2/QR2pK2/4p3/1P1qB3/2rn1b1N/n2b2Bn b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 f4 a5 c4 e5 g4 h5 b3 h3 f5 d3 Ke3 d2 f6 h4 b6 h2 b7 a4 g5 h3 g6 d4+ Kf2 d3 Kg3 a3 c5 a2 c6 Be6 c7 Bd6 c8R Nh6 g7 Nf7 g8B Ra6 Na3 Bc7 Qe1 d1N Bh7 d2 Bb5+ Nd7 b8B Ne3 Nc4 d1B Bc6 Nd6 Ba7 Nb7 Ra8 Nc2 Nf3 Bg8 Rf1 h1N+ Kg4 h2 Bg1 Ng3 Bce3 h1N Qa5 Rb6 Rf2 Nf1 Kf5 Nd2 Nh2 Ra6 Rc1 a1B Nb6 Bd4 Rf3 Na1 f7+ Ke7 f8B+ Ke8 Bg7 Bc5 Qb4 Ra2 Bf6 Rc2 Qa5 Bd4 Bh6 Bf2 Be3 Bc4 Bg8 Rh6 Bh7 Bg8 Rf4 Rb2 Rc5 Rc2 Bh4 Rd6 Rb5 Rd3 Rg4 Rd6 Rg7 Qb8 Bd8 Qa7 Rf7 Qa6 Rc5 Qf1 Rb5 Qd3 Bf6+
k2B1b2/2r4B/3BKbBn/1N1P1R1N/7b/2n2n2/1pRbpQr1/Bq3nNb b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 b5 a4 Kb7 d4 g5 h4 e3 f4 c4 h5 b3 f5 c3 h6 e2 d6 e1B f6 g3 f7 b4 h7 b2 d7 c2 a5 g2 Qg4 b3 Bb5 Qb6 d8B Na6 Be2 Bh4 Bd1 Nh6 Be2 Ra7 Bf4 c1B Qg3 g4 Bf1 Ka8 Qh3 g3 Nc3 b1N Be2 Nb4 a6 Bb7 Nb5 Rg8 h8B Nc3 Qf5 Nbd5 Bd3 Ne3 Ra5 Nf1 Rh2 Bd2 Be4 Bc6 Ke6 Rc7 a7 Bf6 Bd6 Bb7 Ne2 g1N Qf2 g2 Bg6 Nf3 Bg7 g1B Rg2 Bh2 Ng1 Bg3 Bh8 B8g7 f8N Bgh4 Nd7 Bf8 Bh7 Rg7 Rh2 Rg2 Bg7 Be5 Nf6 Be4 Nh5 Bef6 Na3 Qb5 Bg6 Qd3 Rf5 Qb1 Nb5 Ng4 Kf7 e5+ Ke6 Nh6 Bh8 Bc6 Bh7 e4 Bg6 Kb7 a8B+ Kb8 Bb7 e3 Bc8 Be4 d5 Ka8 Bd7 B6g7 Bh7 Bd4 Be8 Bdf6 Beg6 e2 Rh3 B6e7 Bd4 Bef6 Rg3 Na2 Bb2 Nc3 Ba1 b2 Rg4 Bc2 Rd4 Be4 Rc4 Rg4 Nh3 Nd1 Qg3 Ng1 Qf4 Bh1 Rc3 Rg2 Qf2 Nf3 Rc2 Nc3 Ng1
nb1N2NN/2Bb2K1/6Q1/1P4bR/2rn2p1/k1rb2qB/2BRrrNp/3b3N b - - 0 1 illegal: No proof kernel
Bq3Q1N/kbp1b2K/3B1bn1/1b3pBR/1r6/4B1nb/P3N1r1/rN3RrB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 g5 e4 b5 d4 g3+ Kf3 g2 Kg4 b3 Kf5 g4 d6 Kc6+ d7 Kb6 h5 g3 d5 b4 h6 f3 d6 b2 h7 f2 e5 b3 e6 Nh6+ Ke4 Nc6 e7 Nf5 Nd2 b1B+ Qc2 b2 e8B Rb8 Rh3 Be7 Qd3 Rg8 h8N Ka7 Rh5 Ne5 Be2 f1B Bf3 f6 Kf4 Be2 Ba8 Rb4+ Qc4 Be4 Qf7 b1R Qf8 Bc4 Ne2 g1B Bf7 g2 Bfd5 Bb7 Bc6 Qb8 d8B Bd4 d7 g1R Bd5 Bec5 Be7 Bg2 d8B Bb5 Bf3 Bh3 Bh1 R1b3 Rb1 R8g2 Ra1 Ng3 Rb1 f5 Kg5 Bb6 Kh6 Bbc5 Kh7 Ng6 Bg5 Bf6 Be7 Bb6 Ra1 Rb1 Bc5 Be7 Bd6 Be3 Bb2 Bb6 Bd4 Rbd1 Bde3 Bd4 Rc1 Rdf1 Rc5 Ra1 Nb1 Bdf6 Rc1+ Rd4 Bd2 Re4 Rf1 Rb4 Bde3+
1R3N2/RNNq3b/1b1rn1bN/4Q2b/rn2n1p1/2Brk2P/Bpr3N1/1K1R4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kc2 b5 e4 c5 a4 f5 a5 g5 h3 f3 a6 g3 a7 b3+ Kb2 f4 Nd2 c4 Ne2 f2 Ra3 f3 Qc2 c3+ Kb1 b2 Nf4 g2 Qd1 g1N Ra1 c2+ Ka2 b1B+ Kb2 b4 Ne6 b3 Ra4 Qd7 Qe1 Nc6 Bc4 Ne2 Nf1 Nf6 Ne3 f1B Bd2 c1R Bc3 f2 Ng2 Rh6 Ka1 Bg7 Nf8 Rc2 Ra3 Nf4 e5+ Kc7 d6+ Kb6 d5 Kc5 e6 Bd3 e7 f1R e8R Ne4 Qg3 Ne6 Qe5 Rf3 Rd1 Nb4 Rd8 Ba6 Rb8 Bf6 Ra2 Bd8 Ra3 Bb6 Ra2 Qg7 d7 g4 d8N Bb5 Ra3 Be8 Nf7 Rhf6 Nh6 Bh5 Ra2 Qd7 Ra6 Nd6 Ra4 Bh7 Ra2 Ne4 d6+ Kc6 Bd5+ Kc5 Ra3 Rd3 Ra6 Qc7 d7 Qd6 d8N Qd7 Ne1 Rff2 Ng2 Rfd2 Bc6+ Kc4 Nb7 Rd6 Ra4 Kd3 Bd5 Ke2 Ra5 Rd3 Rc8 Rb8 a8N Kf2 Nc7 Ra8 Ra2 Ra4 Rb8 Rcd2 Ng8 Ng3 Bc4 Ra8 Qf6+ Rf3 Nc5 Bbg6 Qh8 Ne4 Qe5 b2+ Kb1 Rc2 Nh6 Rfd3 Nb7 Ra6 Ra5 Kf3 Ba2 Ra7 Rc5 Ra4 Ra5 Kf2 Ra7 Ke2 Ne1 Ke3 Ng2+
bN3n2/2nq3p/5BnN/R1B3K1/2rbb3/N4r2/kPRQpB1B/rB1nb3 b - - 0 1 illegal: No possible last move
1nbb4/Nr2Bbnp/rbr3R1/3N4/pRn2qBK/1N3Q1P/5RN1/N3k1r1 b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 f4 Kd7 Kf2 Kd6 Kg3 Kd5 d4 e5 b6 a5 b7 g5 f5 b3 h3 a4 f6 e3 c4+ Ke4 f7 b2 d5 e2 c5 e1R d6 Ra6 d7 Be7 f8R Qc7 d8N Nf6 c6 Ne8 Nf3 Ng7 Nf7 Bd8 Nfd2+ Ke3 Nc3 b1B Rg1 e4+ Ne5 Ba2 Ba3 Bf7 Be2 Rg8 Qb3 Rb1 Be7 Qd6 c7 Qh6 Kh2 Kf2 Nd5 e3 Nec4 Qd6+ Rg3 Ke1 Kg2 Rc1 Rb1 Qf4 Bf3 e2 Nce3 Rh8 Qd3 Rg8 Rb4 Rcc6 Nb3 Rh8 Na1 Rg8 Kg1 Rh8 Rg2 g3 Bg4 Rg8 Rf2 g2 Qe4 Rh8 Qf3 Rg8 Bd7 Rh8 Rg8 g4 Bf5 Qh6 Kh2 g1B+ Kg3 Qf4+ Kh4 g3+ Bg4 g2 Rb6 Ne6 Rg6 Ng7 Rb4 Re8 Bf6 Re7 Bg5 Bf5 c8N Rec7 Nce7 Bc8 N7f5 Re7 Nd4 Rd7 Be7 Rdc7 Qg3 Rd7 Rf3+ Bf2 Ndb3 g1R Rb6 Rdc7 Rb4 Rc3 Rh6 Nc6 b8N Rb7 Nd7 Nb8 Nf1 Kd1 Ne5 e1N Nc6 Nc2 Rg6 Bfb6 Rf2+ Ke1 Qf3 Na3 Na7 Rc6 Nfe3 Nc4 Ng2+
Bb3Nr1/bN3p2/Rq1PBn2/b1p1n1Qb/nR1B1K1k/2RB4/B7/nr5r b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Ke7 Kg3 b5 h4 g5 e4 c5 a4 c3 d4 c2 h5 b3 h6 b2 e6 Kf6 a5 b4 e5+ Kf5 h7 b3 e7 Ba6 e8B Nd7 d5 Bd6 Ne2 Ngf6 Nd2 b1N Bb2 c1N Nf4 Bb8 e6 Ba7 e7 Qb6 Ne4 Nc3 Ng6 Na4 Bc4 Ne5 Bd4 b2 Beb5 b1R e8B Nb3 Rh4 Rd8 Bec6 Rdg8 Qc1 Bc8 Ra3 Na1 Ba2 Ba6 Bf1 Be2 a6 Bd1 Rc3 Bf3 Kf2 g3+ Ke3 g2 Nf8 g4 Bd3 g3 Nd6+ Kg5 Bd7 Bh5 Be6 g1B+ Kd2 g2 Nb7 Bh2 Ke3 Bb8 a7 Bg3 a8B Ba7 Re4 Be1 Rh4 Ne8 Rf4 g1B+ Ke4 Bgf2 Rf6+ Kh4 Kf4 Bg1 Rh6 Nf6 Qd2 Rg2 Qe3 Rhg8 h8R Rh2 R8h7 Rh1 Rg7 Rb3 Rg2 Rb1 Rb2 Bgf2 Rb4 Bg3+ Kf5 Nf3 Qd2 Bgb8 Qg5+ Kh3 Rg6 Ne5 Kf4+ Bg4 Rcc4 Nfd7 Rb3 Qb5 Bef5 Ba5 Ra6 Nf6 d6 Qb4 Be6 Qb6 Qg6 Kh4 Rcc3 Bf3 Rb4 Bh5 Qg5+
1Q1R4/Kp2r2n/NrNk4/1P1bR1r1/3N1bBn/1N6/2nnRb1p/Br4Nq b - - 0 1 illegal: No possible last move, all moves rejected
N4KN1/n3N3/Q1q2NB1/q1P1nq2/p2b2rN/p1RB1q1r/b2bk3/B4bR1 b - - 0 1 illegal: No possible last move, all moves rejected
bq1Rqn2/3RR3/1Nnp2R1/2Bpr3/r1n1P1r1/Q6r/1nk1K1RN/bB3B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 d4 exf4 d5 c6 Qd4 cxd5 Qd3 Bc5 Qd1 Bf8 g4 Ke7 e4 Ke6 c4 Ke5 b4 h5 b6 a5 b7 f5 c5 f3 b5 a4 c6 f2+ Ke2 h3 b6 d6 g5 h2 g6 f4 g7 h4 c7 a3 Qd2 f3+ Kd1 a2 Bh3 f1R+ Qe1 Kd4 Be3+ Kd3 Bd7 f2 Bg5 h3 Na3 Qe8 Ba4 Nc6 b8R Nf6 g8R Nh7 b7 Bg7 Nc4 Nf8 Nf3 Rh4 Rg1 h1R Nh2 Rg4 Bb3 Ra4 Nb6 Bh8 Rc1 a1Q Rg6 Qb1 Rg2 Ba1 Be3 Rfg1 Bc5 f1N Ra8 Nd2 b8R Nc4 Ba2 Bb7 Ra7 Ba8 c8B Rg5 Rc7 Re5 Ba6 Qb2 Rd7 Qb1 Rb2 Rg4 Rg2 Qb4 Rbd8 Qb2 Nf1 h2 Qa5 Qb4 Rb1 Kc3 Ke2 Kc2 Nc8 Qb8 Nb6 Rg1 Qb4 h1N Nh2 Nf2 Qa3 Rh1 Rf1 Nd3 Rff7 Ndb2 Rh7 Re6 Rhe7 Re5 Kf2 Nd2 Bf1 Ndc4 Ke2 Rh5 Nf3 R1h3 Nh2 Re5 Bb1+
1qb5/5Bn1/bBPNR1p1/Qnkb3N/1r5R/1pb2rn1/1R1BB3/1B1qn1K1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 h4 Kd6 c4 f5 a4 b5 e4 d3 a5 g6 e5+ Kc5 h6 d5 a6 f3 h5 d2 e6 d4 h7 b3 a7 b2 e7 f4 e8B b4 h6 b3 Ne2 d3 Ra4 Na6 Nbc3 b1N Qc2 d1B Ba3+ Nb4 Ng3 d2 Kg1 Ne7 Qa2 Bg7 Nh5 Nf5 Bf7 Rb8 a8B Rf8 Bc1 Nc2 h8R Rb4 h7 Nba3 Rh2 Ne1 Nb5 Bc3 Be4 Ng7 Nd6 Nb5 Ra6 Bc2 Qa5 d1Q Bf5 Be4 Bd2 Bd5 Bb1 Qb6 Be2 Qb8 Bg8 Rf5 Bf7 Rf6 Rh4 Rf5 Rd8 Rf6 h8B f2+ Kh2 f1B Kg1 f3 Re8 Rf4 Re6 Ne8 Bf6 Ng7 Bd8 f2+ Kh2 Rf6 Bb6+ Kc6 c5 Rf3 Bc4 Be2 Ra7 f1N+ Kg1 Ng3 Rae7 Bf1 Re2 Ba6 R7e6 Bh3 Rh2 Bg4 Be2 Bh3 Re5 Bhc8 Re6 Be4 Rg2 Kd5 Rf2 Kd4 c6+ Kd5 Bc7 Kc5 Rfh2 Bd5 Rg2 Bc4 Bb6+ Kd5 Bf1 Rf2 Bg5 Rf4 Rb2 Rf3 Bc7 Kc5 Be2 Bd5 Bd2 Bcb7 Bd8 Bc8 Bb6+
5R1B/b6N/NP1K1n2/2nnR1Qb/6p1/3R1k1p/BRbRnN2/q1b1qrr1 b - - 0 1 illegal: No proof kernel
b2qQ1b1/6P1/1R4kb/2p1r1p1/q2nrb1B/n1qNN1RN/2qRR1R1/4K2B b - - 0 1 illegal: No possible last move
1r1kr1bN/1qp1R1p1/6Nn/b2RK3/PB1n1r2/1R6/qQBNRb2/1br4R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 b5 h4 f5 e4 g3+ Kf3 g2 a4 b3 d4 b4 d6 b2 e5 b3 h5 Ra5 d5 Nc6 d7+ Ke7 e6 Ra8 h6 Rb8 h7 Nh6 Nd2 b1Q Qe2 b2 Ra3 Qa2 Nh3 g1B Rb3 b1B Ba3+ Bc5 Bb4 Nd4+ Kf2 f3 Ke3 f2 Kf4 Ba6 Ke5 Bc4 Nf4 Qc8 d8R Qb7 Rd7+ Ke8 Bh3 f1R e7 Rc1 d6 Bg8 Ng6 f4 Bf5 f3 Bc2 Bb6 Qg2 f2 Qh2 f1R Qe2 Kf7 e8R+ Be7 Qb5 Ba5 Qb6 Ne2 Qd4 Rf4 Qb2 Nd4 Rdd8 Nb5 d7 Bh4 Re6 Be1 Rde8 Bf2 d8R Nd4 Rd5 Qa1 Rc6 Qa2 Ree6 Re8 Rcc3 Rb8 Re3 Re8 Re2 Rb8 Be7 Ke8 Bd6+ Kd7 Re7+ Kd8 Bb4+ Kc8 Rb5 Kd8 Rc5 Be6 Rb5 Re8 h8N Bg8 Rd5+
n2krr2/1pRR1Q2/b4K2/1q3NRN/1R3bB1/1Rnp4/1Pbq3B/r1rN2b1 b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qxa5+ Ke2 Qa6+ Ke1 Qa2 Kd2 a5 Kd3 e5 Ke4 h5 c4 h3 f4 h2 g4 a4 c5 a3 g5 h4 f6 d3 Kf5 d5+ Kg6 d2 f5 d4 f7+ Kd8 c6 d3 f6 h3 Ne2 e4 Qb3 d1B Nd4 e3 Rg1 h1R Be2 h2 Nf5 Bd7 Bg4 e2 Nc3 e1B Bf4 Bc2 Nd1 Bc5 f8R+ Be8+ f7 Na6 Rc1 Ne7+ Kf6 Bg3 g6 Nc7 g7 Qa1 g8R a2 Re1 Bg1 Rg5 Rb8 Rfg8 Na8 f8N Qb1 Qf7 a1R Bd6 Bf4 Nd7 Qa2 Re4 Qa6 R8g7 Rf8 Rb4 Qb5 c7+ Kc8 Ke6 Nd5 Nf6 Nc3 Nh5 Bc6 Kf6 Bd5 Bc5 Bc4 Be7 Kd7 c8R Re8 Rb3 Rf8 Rc5 Rbe8 Bd6+ Kd8 Rc7 Qa4 Be5 Ba6 Rc4 Qb5 Rcb4 Ba7 Be2 Rg1 Bb8 h1Q Bg4 Qg2 Rh7 Qd2 Be5 Bfe3 Bh2 Bf4 Nde3 Nb1 Rhg7 Bd1 Rc7 Nc3 Rh7 Rg8 Qc4 Bc2 Rhe7 Rgc1 Qf7 Rgf8 Nd1 Bg1 Red7+
4R1Rq/3B3n/N1p2r2/4KQb1/1Rp1N2q/1N2qb1b/RnP3kR/B1n2q1q b - - 0 1 illegal: No possible last move
2r1n1r1/2R1n3/2N1rqb1/B3QRpr/5NK1/2rN1pPN/B5qr/1q1R1N1k b - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 f5 g6 h5 Bg7 h6 e6 hxg7 exf5 Bd2 f4 Be3 Ra5 Bc1 Ra8 Kf2 Ke7 Kf3 Kd6 e4 Ke5 a4 d5 c4 b5 g3 f5 a5 h5 a6 h4 a7 h3 c5 g5 c6 d3 c7 h2 Ra5 d2 Qe1 d1R Nh3 b3 Qe2 b2 Ra4 d4 Bg2 b4 Qa6 b3 Nc3 b1R Ba3 d3 Rf1 h1R Rg1 b2 Na2 d2 Nc1 Rh2 Qe2 Nf6 g8N Nc6 Bb4 Ne8 Ba5 Re1 Ne7 d1R Rd4 Be6 c8R Rh5 Rf1 Bf7 Rc7 Rc8 a8N Bg6 Nb6 Rd3+ Qe3 Qd6 Nbd5 Rc3 Rd1 Qf6 Rf2 Re2 Bf1 Re1 Bc4 Ra1 Ba2 b1Q Qd3 Re2 Ne3 Re1 Nf1 Re2 Nd5 Ne7 Nb4 Re1 Be6 Ra2 Qe3 Rd2 Ba2 Rd6 Nc2 Re6 Nd4 Re2 Rd3 Rb2 Rd1 Rbb8 Nd3+ Kd6 Rc4 Ra8 e5+ Kd5 Qe1 Rab8 Ke2 Ke4 Rc7 Ra8 Nc6 Rab8 Qd2 Ra8 Qb2 f3+ Ke1 Rd6 e6 f4 Qa1 Nd5 e7 Re6 Rd2 f2+ Ke2 Ng7 e8N Ne7 Rb2 Rab8 Rb5 Ra8 Kd2 Kf3 Rf5 Kg2 Qb2 Kh1 Qa1 Rc1 Qe5 Rc3 Ke2 Rab8 Kf3 Ra8 Kg4 f3 Nd6 Ne8 Ne4 Rab8 Ndf4 Ra8 Ne3+ f1Q Nc5 Qg1 Nf1 Qg2 Nd4 Nd6 Ncd3 Rg8 Ne1 Rac8 Ned3 Ne8 Nc6
1q1RB1B1/b1ppB2n/nNr5/K1P2nBq/6B1/RN3n2/5q2/Qbk1N1nn b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 Bb2 axb4 Bc1 f5 h4 g5 Na3 b5 Nb1 Ra6 Bf4 Rg6 Bd2 fxg4 Bc1 g3 Kd2 g4 Ke1 Rg5 hxg5 Qf6 Bg2 Qe7 Bf1 Qd8 Kd2 Ke7 c4 Ke6 f4 Kf5 a4 Ke4 f5 h5 g6 g2 g7 b3 e3 h4 f6 d3 Kc3 d2 f7 g3 a5 h3 a6 h2 a7 b2 a8N b4+ Kb3 Bb7 Ka4 b3 Kb5 Bc5 f8B Qh4 Ra7 Rh6 Bd6 Nf6 g8B Qh5 Bf8 Na6 Ka4 Nh7 Ka5 Rc6 Ne2 Kd3 e4 g1Q e5 g2 e6 Qf2 e7 g1N Nb6 Ba8 Qe1 Kc2 e8B d1N Bh3 Ne3 Nd2 b1N Bg4 b2 Be7 Nf5 Nf4 Bb7 Nd3 Bd4 Nf3 Nd2 Ra8 b1Q Rd8 Ba8 Qe5 Be3 Nde1+ Kd1 Qa1 Bc5 Na4 Ba7 c5 Qb8 Nb6 Bb7 Nd4+ Ndf3 Nb3 Rg6 Nd2 Be4 Bb2+ Bb1 Bbf6 Kc1 Bg5 Ne2 Rg1 h1N Rg3 Neg1 Rh3 Rc6 Rg3 Nh2 Ra3 Nhf3 Nb3+
r1QR2k1/Br4p1/RbN2nP1/6qq/2r1b3/1K4Bq/BB2Bp1b/2r2bNR b - - 0 1 illegal: No possible last move, all moves rejected
b1b4q/3N2r1/2rBRb2/Q2n3k/nPpp1RRr/p5Bq/2NK2R1/1q2R2B b - - 0 1 illegal: No proof kernel
k2NN3/7n/N2Rn1p1/1rNq4/1r1nN1bR/3B1B2/pqrBPp1K/1Q2bq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 Kg2 d5 h4 Kd7 b4 Kc7 c4 Kb7 h5 f5 b6 d3 b5 d4 h6 a4 c5 f3+ Kh2 a3 h7 f2 Kg3 a2 Be3 f4+ Kh2 g3+ Kg2 d2 Nh3 d3 Na3 g6 Nc4 Nc6 Qb1 d1Q Bd2 Nd4 Ng5 Nf6 Rh4 Qc2 Ne4 Ra5 c6+ Ka8 c7 Qd5 Nd6 Ne6 Ne8 f3+ Kh3 g2 Kh2 g1N Bg2 Rg8 h8N f1Q Nf7 f2 Bf3 Nh7 Nd8 Bd7 c8B Bb4 Ba6 Qb2 Kg3 Rf8 Kh2 Rf4 b7+ Kb8 Be3 Be1 Bd2 Ka7 b8N Ka8 b6 Rb5 Qd1 Rg4 Qb1 Bc8 Nd7 Rf4 Be3 d2 Ndc5 d1R Bd2 Rc1 b7+ Ka7 b8N Rc2 Nc3 Rfb4 N3e4 Bd7 Ng7 Ka8 Ne8 Rb7 Bd3 R7b5 Nba6 Bc8 Bg2 Nf3+ Kh3 Nfd4 Kh2 Qc3 Bf3 Qa3 Qb3 Qb2 Rd1 Qc3 Qb1 Qb2 Nc3 Ng7 N3e4 Bg4 Rh3 Nge6 Rh5 Qa1 Rh4 Qb2 Bh6 Nf5 Bc4 Qb7 Rd6 Qd5 Bd3 Nfd4 Bd2
2R1B2q/2B1Nn1b/r2pp1B1/1K1Pn3/r1Np2q1/4Q3/BRrbk1BN/4nb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 g5 d5 gxh4 Qd4 cxd4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 a4 h5 f4 e6 g5 h3 f6 b3 f5 b6 g6 h4 a5 b2 a6 h2 a7 h3 g7 Qe8 f7 Rh7 f6 Rh8 Nd2+ Ke3 Ngf3 b1Q Ra2 Nc6 Rb2 Bb4 f8Q Ne5+ Kb5 Nh6 g8B Nhf7 c4 Qe4 c5 Qg4 Bg2 Ke2 Nc4+ Bd2 c6 d6 Qh6 Qd8 c7 Rh7 Rg1 h1N Nh2 Nf2 Qg5 Rg7 Bh7 Qh8 Bg6 Nfd3 Qf4 Bb7 c8B Ne1 Bd7 Rc8 a8B Rc7 Be8 Ba6+ Ka4 Rh7 Bb7 Rc8 Qg3 Rc6 Qc3 b5+ Ka5 b4 Qe3+ Kd1 Ka4 b3 Rf1 Rc8 Bbc6 Ra8 Bb5 Rh4 Rf2 Rh5 Rc2 b2 Rc3 b1B Re2 Nh6 f7 Bd3 f8N Nhf7 Ka5 Rf5 Ba3 Rf2 Bc5 Bb1 Bb6 Bf5 Nf3 h2 Bc7 h1R Nh2 Bc2 Ba4 Bb5+ Kb4 Ra6 Bb3 Rg1 Ba2 Bb1 Bh5 Bh7 Ng6 Rgf1 Ne7 Rg1 Bh3 Rg3 Bg6 Rfg2 Nb6 Bc4 Rf2 Bf1 Nc4 Rf3 Kb5 Ra4 Qg5 Rd3 Rc2 Rda3 Qe3 Ra6 Rb2 R3a4 Rf5 Bc3 Rf6 Rc2 Bg2 Bd2 Rf3 Ng5 Rf8 Ngf7 Bd7 Qe2 Rc8 Qg4 Qb3 Ke2 Be8 Bg5 Qh3 Bd2 Qe3+
1Knr2qB/R3N2R/RP2B3/1Q2N2b/p2r1bR1/p1qrn1p1/R3B3/2n2bk1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Ke7 e4 Kf6 d4 Kg5 b4 Kh4 e5 g5 b5 c5 d6 f5 d7 a5 e6 c4 d5 f3 Ke3 f4+ Ke4 g3 Ke5 f2 b6 g4 d6 f3 e7 c3 e8B a3 Qb3 a4 Bb2 c2 Nc3 c1Q Ra2 g2 Nd5 g3 Bf7 Bh6 Ne7 Na6 Be6 Nb4 Be2 f1N h3 Qe8 d8R f2 d7 Qc3+ Kd6 Nd3 Qb5 Ne3 Ba1 f1B Rh2 Qb2 Kc7 Nc1 Rh1 Ra7+ Kb8 Qc3 Rh2 Ba6 Rc8 Qg6 d8R Rd7 Rc7 Rd3 Rd4+ Bf4 Rc4 Bb7 Rb4 Bf3 Rh1 Rd6 Ra7 Bh5 Rc4 Qb4 Be5 Qc3 Ra6 Rd3 Rc7 Rh7 Bh8 Rf7 Rh2 Rf5 Rh1 Rfd5 Rh2 Rd6 Rca7 Rd8+ Kb7 Qd2 Nd5 Qf6 Bg7 Bg6 Bd1 Rd4 Nf3+ Kh5 h4 Qg5 Rh3 Ne7 Ne5+ Qg4 Bf6 Nc8 Kb8 Qc3 Ne7 Be8 Bc2 Qg8 Bd3 g1R Bdc4 Bg2 Rh1 Rgd1 Be2+ Ng4 Rh2 R1d3 Bg7 Bf1 Bf6 Kh6 h5 Ne3 Rh4 Bf7 Bg7+ Kg5 h6 Bg6 Rg4+ Kh5 Rg5+ Kh4 h7 Bh5 Rg4+ Kh3 h8R Kh2 Rh7 Kg1 Bh8
B2NN3/2r5/Kp3prB/2NqNBN1/5nPq/bR2qRb1/1nQk3p/3b2n1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 Kd3 c5 Kc4 h5 Kb5 b6 a4 f3 e4 f2 a5 b3 g3 c4 a6 f6 a7 c3 Bh3 f1Q+ Ne2 b2 Ra5 c2 Bg5 c1B Bg4 h3 Rh2 h4 Na3 b1N Bf5 Qf4 Bg4 Qe3 Bh5 Nc6 Qc2 Bg4 Nc3 Nb4 Rf2 h2 Bh6 h1Q Na4 h3 Bg6 Bd1 g4 Ne7 Bf5 Nd3 Rf3 Nd2 Ka6 Rc8 a8B Nb2 Nc5 Rc7 Rb5 Ng6 Rb3 Nf4 e5+ Ke7 e6 Kd6 e7 Rg8 Rc3 Rg6 Rd3 h2 Rb3 Qhe1 e8N+ Ke7 Nc4 Qh4 Rf2 Nf3 Ne5 Ng1 Rf3 Qd7 Nd6 Bd2 Ne8 Be1 d6+ Kd8 d5 Bg3 Be6 Qc6 d7 Ke7 d8N Qd7 Ng7 Kd6 Bf5 Qf7 Nde6 Qd7 Ng5 Qe6 Nc6 Q6e4 Ne7 Ke5 d6 Kd4 d7 Qe5 d8N Qd5 Qb1 Kc4 Nec6 Bd6 Ne5+ Kd4 Rb4+ Kc3 Ne8 Kd2 Rb3 Bf8 Na4 Bb4 Nc5 Ba3 Qc2+
RB2n1n1/1b5p/2Q1b1Bq/RBq3b1/4p1N1/qkP1r3/1NB1Br1p/1K1R3n b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 axb4 h5 c5 dxc5 g6 Ne2 gxh5 Ng1 h4 Kd2 Kf7 g4 Ke6 a4 Kd5 f4 b5 c3 e5 a5 h3 g5 e3+ Kd3 e2 Kc2+ Kc4 c6 d5 g6 d4 g7 d3+ Kb2 e1Q f5 h2 f6 b3 a6 b4 a7 Qa5 c7 Qc5 f7 Qd2+ Qc2 Na6 Nf3 Be7 f8R Be6 c8B Bg5 Ra5 Nc7 Bd7 Re8 a8B Re7 Ka1 Ne8 Be4 b2+ Ka2 Qf4 Qa4 Qh4 Bf5 Qh6 Bf4 Rf7 Bg6 Re7 Bh3 d2 Bg4 d1N Qc6 Nf2 Rd1 Nh1 Bg3 Nef6 Rfa8 Ne8 Ne1 Rf7 Nd3 Rf3 Nf2 Re3 Qc8 e4 Bb8 Bd5 Ba4 Bb7 Qd7 Ne7 Qc7 Rf8 Qc6 Ng8 B4h5 Rf4 Ng4 Rf2 Nd2+ Kd3 Bb5+ Kc2 Nc4 b1B+ Ka1 Ba2 Nb2 Be6 Na4 Kb3 Kb1 Ka3 Bd3 b3 Bb5 b2 Bd3 Ngf6 g8B Kb3 B8f7 Bd5 Be6 Ng8 Bd7 Bf7 Qc8 Bfd5 B7b5 Be6 Qc6 Rg2 Ne5 Qb6 Bhe2 Rf2 Ng4 Qc5 Qb6 Ka3 Kc2 Ka2 Qc6 b1Q+ Kd2 Qb3 Kc1 Qbb4 Nb2+ Kb3 Kb1 Qa3 Bc2+
4r2n/1n4kp/B3b3/1Qbp1RNR/p1qq1B2/2r2nK1/RN3rPR/1R1q2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 b4 Kf7 e4 a5 c4 d5 e5 h3 b6 h2 e6+ Kg7 c5 a4 b5 f3 e7 f4 e8R d3 c6 d2 c7 Qf6 b7 Nc6 b8R Be6 c8R Nd8 b6 Nb7 Ra2 Ne7 Nc3 Ng6 Qe2 d1Q Be3 Bc5 Nh3 Qfd4 Qb5 Rf8 Ng5 Nh8 Rc6 Rf7 Rf8 Rc7 Rf6 Qc1 Nd1 Qcc4 Rf5 Rc8 Rg1 h1Q Nb2 Rc7 Rbf8 Re8 Bd3 Rcc8 Rb1 Qd1 R8f6 Rc7 Rh6 Rcc8 Bf1 Rc7 Rh2 Rcc8 Kg1 f2+ Kh1 f3 Rd6 Bf7 Rdh6 Be6 R2h5 Rc6 Kh2 Rc7 Be2 f1R Bg1 f2 Kh3 Re1 Bd3 Re2 Kg3 Rc2 Rh2 Rf7 R6h5 f1N+ Kh3 Nd2 Kg3 Nf3 Be2 Nd6 b7 Rc3 b8B Nb7 Bf4 Qf1 Qd7 Qb3 Re5 Ne1+ Bfe3 Qbd1 Ba6 Qfc4 Qb5 Rf2 Rf5 Nf3 Bf4
BN2Bbb1/5NpR/3q2B1/r1kP2K1/np5n/1rbqR3/Q1pB2N1/3Bq2r b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Ke7 Ke3 b5 Kf4 f5 h4 c5 e4 b3 d4 g3 a4 b2 a5 b4 a6 c3 e6 Kd6 d5 c4 h5 g2 e7 c2 e8B c3 e5+ Kc5 e6 Rh6 a7 Qf6 e7 Nd7 Be2 Nb6 Na3 b1R Bg6 Na4 e8B Be6 Bd2 c1B Nh3 g1Q Qc2 Qe1 Bd1 Bb2 Nc4 Ne7 Ra3 Bg8 Na5 Qd6+ Kg5 f4 Nc6 f3 Nf4 f2 Ng2 f1Q Nb8 Nf5 Qb3 c2 Qa2 Qf3 Re3 Bc3 Rh4 Rh8 h6 Rb3 Rh2 Nh4 h7 Bf7 Re7 Qd3 Re3 Rg8 h8N Be6 Nf7 Rh8 Ne5 Bg8 Nf7 Rh7 Rh1 Nf5 Rf1 Rh1 Rff3 Nh4 Rh3 Nf5 Rh7 Nh4 Nc6 Rb8 a8B Rb5 Nb8 Ra5 Re4 Bd4 Re2 Bc3 Re3
1BBbr2q/Pb2qr2/3n1N1N/R7/3kpKnB/Brp3N1/1b1pQ2B/1n5R b - - 0 1 illegal: No proof kernel
4qB2/P3nbBB/1R2p1N1/r3pr2/NR2bqqp/b1rBkR2/K5n1/Q5B1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 fxe6 cxd5 e5 g4 Kf7 d4 Kf6 Kd2 Kg5 a4 Kf4 Kc2+ Ke4 Kb2 h5 f4 b5 f5 c5 a5 c4 d6 h3 a6 c3+ Ka2 c2 d7 h2 d5 h4 d6 Rh5 g5 Nf6 g6 Ng4 g7 Qe8 d8B Ne3 g8B Nc6 d7 Ng2 f6 Rf5 Be3 c1R f7 Rc3 Bh7 e6 Bdg5 Bb7 d8R Ne7 Bf6 Bc6 Rb8 b3+ Kb2 b4 Bg7 Bb5 Ra4 Be2 Bf2 Bh5 Nh3 Bg6 Rg1 h1Q Rb6 Qh2 Nf4 Qh3 Ka1 b2+ Ka2 Qg4 Bd4 Bh5 Ng6 Qf4 Be2 Ra7 Rf1 b3+ Ka3 Qg4 Rab4 Qf4 Bc4 Qg4 Bg1 Ra8 Rf2 Ke3 Nd2 b1B Bd3 b2+ Nb3 Bc2 Qa1 b1Q Qa2 Ra7 Qa1 Qc1+ Ka2 Ra8 Nc5 Qd2 Bc4 Qdd4 Na4 Qdf4 Be2 Be4 Bc4 Rc8 a7 Rc5 Bd3 Ra5 Rd4 Nc8 Rc4 Ba3 f8B Ne7 Rcb4 Qfg5 Nh8 Bf7 Ng6 Q5f4 Rf3+
N3b2K/B2rnrRB/3rQ1B1/r1pP1pn1/R1N2bpn/6N1/1kr1B3/q4B2 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Kd7 Ke3 Kc6 Kf4 Kc5 e4 Kd4 h4 f5 a4 b5 h5 c3 h6 c6 a5 g3 a6 c2 e6 g6 e7 b3 Kg5 b2 h7 b4 e5 b3 a7 g2 e6 Nd7 Qe1 Qa5 e8B Ndf6 e7 Bd7 Nc3 b1R Qe6 b2 Na4 c5 Nb6 Rd8 a8B Qa6 d3 Kc3 Bf4 c1R d4 Rc2 Bf3 Rd1 Ra4 b1R Ne2+ Kb2 Bb8 g1N Na8 Ra1 Ng3 Bg7 Bf7 Be8 Ba7 Rd7 B3e2 Bf8 Rh4 Rd3 Rg4 Nf3+ Kf4 Nh4 Ke5 g5 Bg6 Ne4 d5 Rb3 Nc7 Bh6 Na8 Bf7 e8B Rbb7 Bd3 Ne7 Bde2 Rf8 h8N Rb6 Bh7 Rbd6 Ng6 Ra2 Nh8 Bh5 Beg6 Ra1 Nf7 Qa5 Nd8 Rf7 Nb7 Qe1 Na5 Ra3 Rf4 Qa1 Rf2 Ra2 Rh2 g4 Nc4+ Kc3 Rh3 Bd2 Rh1 Ng5 Rh2 Rab2 Rh3 Rb5 Rh2 Ra5 Rh1 Rg7 Kf6 Bf4 Rh3 Rg8 Rh1 Rf8+ Kg7 Rf7+ Kh8 Rda6 Bh3 Rad6 Rb1 Rda6 Rb8 Rad6 Rg8 Kb3+ Rg7 Kc3 Ne5 Kb2 Nc4+ Kb1 Bg2 Rf6 Bgf1 Kc1 Na3 Kb2 Bf7 Bg6 Bfg8 Bf7 Bg6 Be8 B8h7 Rf7 Nc4+
2r2Rr1/3r1N1n/3nNNbp/2br1n2/K5B1/2BN2r1/p1kP2p1/RQqN3B b - - 0 1 illegal: No proof kernel
1r1rN3/K1N2bb1/1Pp1p2p/k4nNr/N2BR3/3bR2B/1N1nqb2/1Rb1Q3 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 a5 Kd4 a4 Kc5 h3 g4 a3 f4 a2 d4 h2 b4 e3 g5 e2 f5 e1R b6 h6 g6 c3 f6 c2 b7 c6 b5 Kc7 g7 Re5+ d5 Re6 d6+ Kd7 f7 Ra6 Nh3 Qa5 Be3 c1B Na3 Qe1 Ng5 Qe2 Bd4 Ra8 Kb6 Re5 Qe1 Na6 b8R Nc5 Rb1 a1B Nc4 Ne4 Nb2 Ba6 Re8 Rb8+ Ka7 Nd2 Bh3+ Rf5 Rg1 h1B Rg4 Bd5 Re4 Rd8 Re3 Kc8 d7+ Kc7 Re4 Rb8 d8N Ba2 Nf3 Rh5 Nb7 Bc4 Nc5 Bd3 Bg2 Bc8 Bh3 Be6 Nca4 Bb3 Nd1 Bc3 Ng5 Bb4 Nb6 Bc5 Nb2 Be6 Bf6 Bf2 Bd4 Nf6 g8N Nd5 Nf6 Bg7 f8N Bf7 N6a4 Ne3 N8h7 Nf5 b6+ Kd6 Nd5 e6 Nhf6 Rf8 Rc8 Rd8 Nc7 Rd7 Rg8 Rdd8 Na6 Be8 Rf8 Bf7 Ne8+ Kd5 Nd1 Kc4 Ndb2+ Kb5 Nac7+ Ka5 Rg8 Be5 Rg6 Bg7 Rf6 Ne7 Rf3 Nf5 Rfe3
1N6/3bbKb1/BpN5/1rr1PB1N/3b1R1b/rn3RNN/1p1B2p1/n1Q1q2k b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Kd7 Kg3 Kc6 Kf4 Kd5 a4 f5 h4 c5 d4 g5+ Ke3 f4+ Kf2 Ke4 e6 g3+ Kg2 b6 Kh3 f3 Kg4 g2 e3 c3 a5 f2 d5 c2 d6 c4 h5 c3 a6 b3 a7 b2 h6 Nd7 Kh5 g4 Kg6 g3 h7 Nh6 e7 Ng4 e8N Bg7 Ra2 Qh4 Nc7 Nc5 d7 Nb3 d8N Bd7 Nc6 Rhc8 Ba6 f1R h8N Rf5 Rh3 Rb5 Bd2 c1B Kf7 c2 Qf1 Rd5 Ng6 Rb5 Nf4 Qe7+ Kg6 Qe5 Kf7 Qc3 Nf3 g1B Nh5 g2 Rg3 Bf2 Rh3 Bh4 Ng1 Qe5 Qe1 Qg3 Qd1 Qe1 Nc3+ Kd3 e4+ Ne3 e5 Be7 Ne6 Rc7 Nb8 Rc5 Nce2 Ke4 Rh2 Bh4 Nh3 Kf3 Ra3 Be7 N3f4 Kf2 Neg3 Kg1 Nd4 Bh4 Ndc6 Be7 Ba5 Bd2 Bc3 c1B Rh4 Nc2 Nh3+ Kh2 Bb4 Bdg5 Bd2 Nca1 Rf4 Bh4 Qc2 Na5 Raf3 N5b3 Ba5 Be3 Qc1 Bd4 Bd2 Rb4 Bd3 Rbb5 Bf5 Rc3 Na6 Rc8 a8B Rcc5 Bb7 Ra8 Nab8 Ra3 Ne2 Kh1 Bc8 Bh6 Ba6 Bg7 Neg3+
6Kb/1B3Bp1/b2nB1BR/r2RbPp1/nB3nNQ/N3R2p/n1n4q/1kr5 b - - 0 1 illegal: Other
r3N1k1/2K1pr1p/rn1nrB2/1R1b1N1Q/2BpR3/7r/1BR1B1BP/4qbn1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a5 f4 axb4 e5 g6 e6 fxe6 g3 Bh6 f5 Bf4 gxf4 e5 Ke2 e4 Kd2 Kf8 Ke1 Ke8 Ke2 Kf7 c4 b5 a4 d5 a5 d3+ Ke3 g5 Kd4 b3 Kc5 e3 a6 b2 a7 d2 f6 g4 f5 e2 Ra2 e1R Nf3 g3 Be2 d4 Nc3 b1B Nd5 b4 Nc7 g2 Kb6 g1N c5 b3 c6 b2 Nh4 Qd6 Ne8 Qd8+ c7 Be6 Kb7 Kf8 c8B Qa5 f7 Nh6 Bd7 Bd3 Bb5 b1R Rc2 Nd7 Bb2 Rf1 Bc4 Nb6 Kc6 Bd5+ Kc7 Rb8 a8B Ra1 Bc6 Rf3 Ba8 Rh3 Bb7 Ra8 Bc6 Nf3 Re1 Ng1 Bb7 Be6 Bg2 Bd5 Bef3 Ra6 Re4 Bf1 Bfe2 Ra4 Bed3 Ra2 Qh5 d1R Be2 Qc3 Nf6 Kg7 f8R Nf7 Rb8 Rf8 Ne8+ Kg8 f6 Nd6 Nf5 Qe1 Rb7 Ra8 Rb8 R2a6 f7+ Kh8 Rb7 Rdd3 Rb8 Rdg3 Rb7 Rg6 Rb8 Re6 Rb7 Rg8 f8B Rg7 Rb8 Rf7 Bg7+ Kg8 Bf6 Nbc8 Rb3 Nb6 Rb5
2r1B1R1/2qp1N1Q/bP2B2B/2pn4/R3r1bb/K3B3/1pBnN1Nn/n3kn2 b - - 0 1 illegal: No proof kernel
2rn1b1q/Q2R2pR/bR2rN2/n3kN1b/P1B2B1R/1p1B3b/R2r2pn/4K3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 e4 Kd6 h4 c5 a4 b5 h5 f5 h6 f3 h7 b3 Nd2 f4 Rh4 c4 Qc2 f2+ Ke2 b2 Qb1 c3 Ngf3 b4 Ra2 g3 Kd1 b3 Bc4 f1N Ke1 g2 e5+ Kc7 e6 Kd6 e7 c2 e8B Bh3 Bh5 Nh6 Bg6 Nc6 Bgd3 Nh2 Qa1 Rg8 h8R b1B Rh7 Na5 Qc3 Rc8 Ne4+ Kd7 d6 Nf7 d5 Rh8 Nfg5 f3 Ng3 Qe8+ Be3 Nd8 N5e4 Qh5 Qd2 c1R+ Qd1 Rg8 Nf5 Rc2 Bf4 Rd2 Qe2 Bc2 Qe3 Bd1 Qd4 Be7 Qc5 Re8 Qb6 Bf8 Qe3 Re6 Qa7+ Ke8 d7+ Kf7 d6 Be2 Rh8 Qh7 Nf6 Qg8 R8h7 Qh8 Bb1 Rd4 Bbd3 f2+ Kd2 f1B Ke1 Ndb7 d8R Bh5+ Kd2 Kg6 Rd7 Nd8 Rb7 Bfe2 d7 Kf7 Ke1 Kg6 Be4 Rd2 Rb6 Bf1 Bd5 Ba6 Bc4 Ndb7 d8R Kf7 Ng4 Kg6 Rd7 Nd8 Nge3 Kf6 Bed3 Rd6 Nd5+ Ke6 Be3 Ke5 Nf6 Re6 Bf4+
1QnB4/2b3NN/1nqp4/q1b1N1Np/4N1bb/6b1/kBrrPp2/2RB1K1R b - - 0 1 illegal: No proof kernel
1r2bn1N/1b5p/b1RB4/N1nKp1qk/1R1N3B/2pB1NP1/2Qb1qr1/1b5N b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 b5 a4 c6 f4 e3 d6 c5+ Kd5 e5 d4 h3 g3 b3 d7 e2 a5 e1Q a6 h2 a7 c4 f5+ Kg7 f6+ Kg6 f7 c3 Ra4 b4 Bg5 b2 Nf3 b3 Bh4 Qe3 Rb4 Qd2 Qc2+ Kh6 Bd3 Qf2 Nbd2 b1B Ne4 Qg5 d8N b2 Nc6 Na6 Na5 Kh5 Rd1 Bh6 f8B h1B Bd6 Rb8 a8N Nc5 Nc7 Ba6 Nb5 Nf6+ Kc6 Na4 d5 Rhf8 Nbd4 Nc5 Rf1 Nfd7 Rd1 Qfd2 Nf2 Rf5 Rf1 Nf8 Rd1 Bg2 Nh1 Ba2 Ra1 Bb3 Raa4 b1B Rb6 Qf2 Rab4 Ra8 Bb8 Bbc4 d6 Bf7 d7 Be8 Bd6 Rb8 Kd5 Rf4 d8N Re4 Ndb3 Re2 Nd4 Qc1 Nf7 Re1 Nh8 Rf1 Ra4 Rg1 Rab4 Nfd7 Kc6 Nf8+ Kc7 Bg5 Nh2 Bgb7 Nhf3 Bf4 Bde7 Qcd2 Kd6 Rg2 Rc6 Bh6 Kd5 Qf4 Nh2 Qf5 Nhf3 Bd2 Bd6 Qf6 Nb5 Qg5 Nbd4
2Rq4/n4n1R/1B1b1BB1/1nk4B/4K2Q/pbp2n1B/qNN1p1P1/1bNr1r2 b - - 0 1 illegal: No proof kernel
3qb2K/Nb5Q/rnN1R3/3BR1b1/RRpb4/Pr2ppnk/3B1B2/qR4r1 b - - 0 1 illegal: No proof kernel
1nNQ4/rB4n1/Nrnqb1K1/5B2/p3bPN1/bRR1Nqk1/pp4n1/1N4B1 b - - 0 1 illegal: No proof kernel
N1Bqq3/1K3k1n/r3R3/2P2R1q/3npBbq/QB1pb1B1/3p2Nr/2Nb3B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 h5 Kd3 b5 Ke4 e5 Kd5 d3 g4 h3 c4 b3 f4 b2 a4 d6 g5 h4 g6 b4 a5 h2 a6 b3 g7 h3 f6 Be7 f7+ Kd7 f8B Ke8 c5 Rh7 f5 Nc6 f6 Bd7 a7 Qb6 Nd2 b1Q Qf3 b2 Ra6 Nd4 Ne2 Bg4 Nf4 Kf7 Ng2 Qd8 Nb3 e4 Bf4 d2 Nc1 Qe8 Qa3 Qd3 Be2 b1Q Rf1 h1Q Bf3 h2 Rf2 Qd1 Rc6 h1B Ra6 Rb8 a8B Rh2 Bb7 Ra8 Bc8 Bd8 Rb6 Ra6 Be7 Bc7 Bd8 Bb8 Bc7 Qe1 Rf1 Qh4 Rc6 Qbc2 Bg3 Qd1 Rb6 Kg6 f7 Kf6 f8N Kf7 Ne6 Q1e2 Bd8 Bc7 Bf6 Bd8 Bfe5 Bg5 Nc7 Be3 Bef4 Qd1 Ne1 Bg2 Rf2 Bf1 Ng2 Be2 Na8 Qh1 Rf1 Bd1 Rb3 Qb1 Rb6 Nf6+ Kc4 Nh7 Kd5 Qed8 Rc6 Qb8 Rb6 Nf5 Kc6 d5 Rf2 Qe5 Kb7 d4 Re6 d3 Rf1 Nd4 g8B+ Kf8 Rc6 Qee8 Bb3 Qhh5 Re6 Kf7 Ne1 Qg1 Bh1 Qg2 Rf2 Qgh3 Ng2 Q3h4 Bb8+ Kg7 Rf5 Kg8 Bbf4 Kg7 Rd5 Kf7 Rf5+
1k1r4/bb1BqR2/2BN2B1/2pnqB2/p1P2q2/bp1r4/1n2b1BQ/1K2NR1R b - - 0 1 illegal: No proof kernel
N3RN2/1n1n2k1/1rBR1b1N/N1pNp2b/4p3/1nq1BR1n/KP3br1/3q1Q2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kf7 d4 c5 Kd2 h5 Kc2 a5 g4 e5 b6 c3 Kb3 a4+ Ka3 h3 g5 h2 b7 c2 g6+ Kg7 f5 h4 d5 h3 d6 Nc6 b8R Be7 d7 Bf6 Ka2 a3 Nf3 Qa5 d8N Rh6 Bb5 Qc3 Nb7 Nd8 Rf1 h1Q Bc6 h2 Be3 c1B Na5 Nb7 Ng5 Ra6 Qe2 Rb6 Rf3 Qd1 Qf1 h1N Ra8 Rh2 Ne6+ Kh8 Rb8 Rg2 Nc7 Nf2 Na8 Nh3 g7+ Kh7 Bg1 Bd7 Be3 Be8 Rc8 Bh5 Re8 Nh6 g8N Ng4 Nh6 Kg7 Bd4 Bcg5 Bf2 Bh4 Be3 Qcc1 Nc3 Bf2 Nd5 Qc3 Nac7 Bd8 Rc1 Nf6 Na8 Nd7 f6+ Kg6 f7 Kg7 f8N Bf6 Kb1 Qe2 Rc2 a2+ Kc1 a1N Kb1 Qd1+ Ka2 Nb3 Rd2 Bf7 Ne7 Bg6 Rd6 Bh5 Nd5
nB1BrN1q/3B1K2/r3NR2/1pn1Bqp1/BrR4n/1R4r1/2bkPp2/3Q2b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 h4 Kf6 d4 Kf5 a4 Ke4 a5 c5 a6 g5 d6 f5 a7 b3 d7 c4 d5 b2 h5 f3 Kg3 c3 d6 c2 h6 f2 h7 Nh6 Nh3 Na6 Ra3 Nc7 Bf4 c1N Rb3 Nd3 Na3 b1R Nc4 Nc5 Ne5 b5 Ng6 Bg7 Nf8 Bd4 Be5 Rg8 h8R Qe8 d8B f4+ Kh2 f3 Kg3 Be6 d7 Bf5 Nf4 Bh7 Bh3 f1Q N4e6 Bg1 Bdf6 Qb8 d8B f2 Nd7 Re8 Ndf8 Bg6 Bf4 Qe1 B6e5 Nf5+ Kg2 g3 Rh6 Bh7 Rf6 Bg6 Bg4 Nh4+ Kh3 g2 Kg3 Qf1 Bh3 Qe1 Kg4 Qc8 Bg3 Qc3 Bh2 Bh7 Kh5 Ke3 Bf5 Qd7 Bc2 Qdd3 Kh6 Qf5 Kg7 Rb2 Kf7 Rb1 Qf1 Kd2 Bhg3 Qa1 Rh3 Rb2 Rc3 Rb4 Ba4 Bh2 Rc4 g1R Qb1 Rg2 Qf1 Bg1 Bh2 Qb2 Rb3 Rg3 Qa1 Qg4 Qf1 Bc2 Qb1 Qf5 Qf1 Rb8 a8B Rb6 Bc6 Ra6 Bd7 Na8 Qb1 Qd4 Qa1 Ng6 Qb1 Qh4 Qf1 Qh8 Qa1 Nh4 Bb8 Rf3 Bhe5 Rg3 Qd1+
3bRn1b/4B1B1/1N2Qr2/1p2p1bN/1N5p/1K1n4/RPnbNNr1/2kqq2B b - - 0 1 legal: proof: e4 d5 a4 g5 h4 gxh4 c4 dxc4 e5 b6 a5 Bb7 a6 f6 axb7 fxe5 Rh3 e4 Rh2 Qd3 Rh1 Qd8 f4 Kf7 d4 Ke6 Kd2 Kd5 Kc2 h5 g4 c5 g5 e5 g6 a5 g7 h3 f5 h4 f6 h2 f7 a4 Qf3 c3 Qf6 e3 Bb5 Ke4 d5 a3 d6 a2 d7 c4 Qd6 e2 Be3 e1B Qa3 Ra6 Qa4 Nf6 g8N Bd2 Nh6 Ng4 Ne2 Rg8 Na3 Bg7 f8B Nf2 Bg5 Bh8 Bfe7 Nd3 Rhc1 h1Q Qb3 Qe1 Bgf6 Ke3 Bc6 b5 Bh1 Rg2 Bg7 Rf6 Rd1 Qc7 d8N Nd7 b8N Qd6 Na6 Nf8 Ne6 Qd4 Nb4 Qd7 Rac1 a1N+ Kb1 c2+ Ka2 c3 N6f4 Qd6 Nh5 Qd5 Rb1 c1B Qc4 Nc2 Ra1 Qf2 Rg1 Qe1 Kb3 Qf3 Qe6 Qff1 Nd4 Qfe2 Ra2 Q2d1 Ndf5+ Ke2 Nc4 Bg5 Rf1 Bcf4 Nb6 Kd2 Nd4 Kc1 Ng4 Bd2 Bc5 Rg6 Rf7 Bd8 Be7 Rf6 Nf2 Bg5 Bd6 Kd2 Rb7 Ne3+ Ka3 c2 Re7 c1B Re8 Nc2+ Kb3 Qf3 Ng4 Kd1 Be7 Bcd2 Nf2+ Kc1 Nf4 Qfe2 Nh5 Q2d1 Ne2+
1n1nbb2/1B3nQ1/1rB3b1/p4N1q/RP2RB1r/KpB4N/1N1p1b1B/3k3q b - - 0 1 illegal: No proof kernel
4b3/B2rBR2/nb1Rq2P/q1r2qNk/p1pB2r1/n4BBN/1p2Q3/rN4K1 b - - 0 1 illegal: No proof kernel
5bN1/1nr5/1rk1p1Pq/1bq2Np1/N1r1N1N1/b1nBBbK1/1p2R3/1R3Q1R b - - 0 1 illegal: No proof kernel
N2bk1Rn/R2r4/2NpQR2/4npnb/2BpqR1B/1K6/2rqqP2/N1R1q3 b - - 0 1 illegal: No possible last move
bN1RB1RR/nb2R3/3ppPn1/5N2/1K6/R1r1Bbnr/p3k2q/q3b1QB b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 a5 c4 h5 b4 h3 b6 d3 Kc3 h4 b7 a4 f5 Ke5 f6 h2 c5 d2 b5 Kf4 g5 Ke3 c6 h3 b6 e6 g6 a3 g7 Ne7 g8R Qc7 Nf3 Ng6 Bb5 Bb4+ Kc4 d6 Nc3 Qh7 c7 Nc6 b8R Na7 Na4 Bb7 Rbd8 Rc8 Qg1+ Ke2 Be8 d1B Nh4 e3 Nc5 Be1 Nf5 Ba8 b7 a2 b8R Qh6 Rab1 Qh5 R1b3 Qh7 Qg3 Bb7 Rg1 h1N Ra3 h2 Nd7 Ba8 Qg5 Ng3 Rg7 h1B Re7 Bhb7 Rh1 Nf1 Qg1 Ng3 Bd2 Qh2 Kb4 Qg2 Rhh7 Qh2 Rhg7 Rh3 Rg8 Bf3 Rb7 Bb3 Nb8 Bbd5 Rb6 Bdb7 Rc6 Kd1 Rc4 e2 Rh4 Ba6 Rhh8 B6b7 Qe3 Bf2 Qd4 e1Q Qc5 Qe5 Be3 Ke1 Qc1+ Ke2 Qg1 Qa1 Na6 Rb8 c8B Be1+ Kc4 Bbe4 Bb7 Rc8+ Bbc6 Rc7 Nb8 Rc8 Kb3 Bb7 Bd5 Rc3+ Kb4 Ba8 Bb3 Beb7 Bd5 Bg4 Bg2 Bgf3 Bh1
1R4n1/n2r1b1K/2p1k2B/Q1N1pp2/B2r1bBR/1r1qPNB1/3rB3/4bq1N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g5 Qc2 d6 Qf5 gxf4 g5 d5 Qg4 hxg4 cxd5 Ra6 Kd1 Ra5 Ke1 Ra8 Kf2 Kd7 d4 b5 h4 f5 a4 e6 d6 b3 d5 b4 g6 f3 Ke3 f2 Kf4 b2 g7 g3 h5 b3 a5 g2 a6 Nc6 a7 Ba6 h6 Nce7 Kg5 Bb5 h7 Nh6 g8B Ng4 Rh4 Nf6 Nc3 b1Q Nd1 b2 Nf3 Nc8 Kg6 g1B Bh6 Ba6 e3 Bc4 Be2 f1R Nf2 Bh2 Nh1 Bf4 Ra5 Be7 Rb5 Rd1 Rb8 Rd2 Bf7 Re8 h8B Ng8 Be5 Qf1 Kh7 b1R Bh5 Rb3 Bg4 Bf6 Rb7 Rb8 a8B Na7 Rb4 Rc8 Rb8 Bg7 Bb7 Re7 Ba6 c6 Bb5 Rc7 Ba4 Rcb7 Bb2 R7b4 Be5 Bg5 Bh2 Bf4 Bg3 Bc3+ Bg7 Ke8 d7+ Kf7 d6 e5 Bh6 Bd5 Nf2 Rbd4 Nh1 Qb6 d8Q Rd7 Qc7 Qa6 Qb6 Qd3 Qa5 Rc7 d7 Kf6 Rh2 Bf7 d8N Rcd7 Nb7 Ke6 Rh3 Rc2 Rh2 Be1 Rh4 Rd2 Nc5+
BNb4K/r3BRnn/2p3B1/pqnNBRb1/pPk4n/6b1/3q4/Q2BR1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 a5 d4+ Kb5 e4 f5 b4 f3 d5 h4 d6 f4 d7 f2 g6 f3 g5 h3 g7 h2 g6 Ra6 Nc3+ Kc6 Bg2 f1Q Bf4 f2 Nf3 Nf6 g8R Nh7 g7 Be7 Rf8 Ra7 g8B Na6 Rf7 Bg5 Nd5 Kb5 Rb1 c3 Nd4+ Kc4 Nc6 c2 Nb8 Qe2 Re1 c1B Kf5 h1N Kg6 f1N Kg7 Nhg3 e5 Be3 e6 Nh2 e7 Bf2 e8B Nf3 Be5 Nh4 Rf1 Be1 R1f5 Nc5 Ra1 Qd2 Be4 Qe7 d8B Qd7 Be7 Qb5 Bc6 Bf2 Ba8 c6 Qg1 Be1 Bc2 Bf2 Bd1 Be1 Rf8 Bf2 Bf7 Be1 Bg6 Bf2 R8f6 Nh5+ Kf7 Rd8 Qh1 Rd6 Kg8 Bg3 Rf7 Ng7 Kh8 Rf6 Bdh5 Re6 Re1 Rd6 Bd1 Re6 Bf4 Re2 Bc7 Rg2 Be5 Rg1 Qh3 Bf2 Qa3 Bg3 Qa1
1rRNRKB1/bq1b1b1k/qBp4p/r3P3/N3r1N1/2N1n3/R2pQ3/N2bn3 b - - 0 1 illegal: No possible last move, all moves rejected
3K1Qnb/kNB2Bb1/NPqn1B2/3q1bp1/5Br1/3R2BN/p3pr2/1r1b2R1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 d5 c4 Kd7 f4 Kc7 b4 Kb7 h5 e5 b6 g5 c5 d3+ Ke3 a4 b5 g3 f5 g2 h6 d2 f6 a3 h7 a2 f7 Ra6 c6+ Ka8 c7 Qe8 b7+ Ka7 Bc4 Rh6 Nh3 g1R Qf1 d1B Nc3 Na6 Na4 Bg7 f8B Rg4 Rg1 Bf5 Bd6 Rf6 Nc5 Qc6 Rb1 Rf7 Rb3 Rf6 Rd3 d4+ Kf2 Rf7 Bf4 Rf6 Bf7 e3+ Ke1 e2 Kf2 e4 b8B+ Ka8 c8N Nc7 Na6 Ne8 Bdc7 Nd6 Bg3 e1B+ Kg2 e3+ Kh2 Ne8 Nd6 e2 Nb7 Bc3 Bcf4 Nd6 Bc7 Ka7 Qf2 Ne7 Qf1 Rd8 h8B Ng8 Qf3 Ne4 Kg2 Rd5 Qf2 Nd6 Kf3 Bb2 Qe3 Ba1 Qe8 Bc3 Qf8 Ba1 Rb3 d3 Ke3 d2 Rd3 Bb2 Kf3 Rc5+ Ke3 Rc3 Kd4 Ba1 Ke5 Rb3+ Rd4 Qc2 Kd5 Rb1 Rd3 Bc3 Kc6 Qc1 Be6 Bd4+ Kd7 Qc6+ Kd8 Bh6 Nbc5 Be4 Ra3 Bb3 Bg7 d1Q Bc1 Rf2 Nb7 Bf5 Bf7 Be5 Bh8 Qdd5 Bcf4 Bd1 Rd3 Bd4 Bf6 Bb2 Be7 Bh8 Bf6 B6g7 b6+
2K1RR1n/1nbr2R1/1P2N1Rp/2p2r1b/p2nr1Bk/QN2B3/2RN3q/1q3n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 e4 a5 b4 f5 d4 h3 g4 h6 b6 a4 d5 h2 d6 c3 d7 c2 Ke6 Be7 e5 Ra7 b5 Bd6 b7 Qc7 b6 Nc6 b8R Na5 Bh3 Ne7 Qd3 Ng6 Ne2 Kh4 g5 f3 Bg4 f2 Nd2 f1R Ra2 f4 Nd4 f3 Rg1 h1Q Qa3 f2 N4b3 Nb7 Rg3 Rd8 Rg2 Nh8 g6 Re1 g7 f1N g8R Rf8 Rg7 Rf5 Rb2 Re4 Rg1 Na5 Rg6 Ba6 Rf8 Nb7 d8N Be2 Rg2 Qb8 Kd7 Bc7 e6 Bf3 e7 Qg1 Bh3 Bh5 e8R Qh1 Ne6 Qg1 Nc4 Qh1 Bd2 c1N Be3 Ne2 Rc2 Nd4 R2g5 Ng3 Ncd2 Qb1 Bg4 Nf1 Ng7 Bd8 Ne6 Qh2 Kc8 Bc7 Rg7 Nd8 Rd7 Bd6 Rh7 Rd7 Rhf7 Nb7 Rfg7 Bc7 R5g6
3qnb1r/3N2B1/1pn4R/4N1Rp/pkr1n3/N1NP1KB1/3q2BQ/Nr1n1b2 b - - 0 1 illegal: No proof kernel
1n1R3N/1RB1r1R1/1p2nq1b/1BB1P2Q/1K3n2/1bBb1pp1/1Bk1r3/1N3bq1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 e4 g5 a4 c5 h4 f5 h5 g3 a5 g2 h6 f3 a6 b6 h7 f4 a7 c4 Rh2 b3 Kc3 g4 Nd2 g3 Nb1 f2 Nh3 g1Q Qf3 b2 Kb4 c3 Bb5 f1B Qh5 f3 Nf4 c2 Ng6 Nf6 Ra2 Rg8 h8B Bh6 Bd2 c1N Bc3 Nh7 Re2 Kc7 d6+ Kb7 d7 Re8 d5 Re7 d6 Ng5 Bhe5 Ne6 Nh8 Qf8 d8B Qf6 Rd2 Ne2 Bc7 N2f4 Bed4 Bd7 e5 Bc6 d7 Bd5 Bd6 Bb3 B6c5 Kc7 d8B+ Kb7 Bc4 Kc6 Bb5+ Kd5 Bc7 Ke4 Ra3 Bfc4 Rh2 Kd3 Rh4 Kc2 Rg4 Bf1 Rg7 Nd7 Ra1 Rc8 a8R Nb8 R1a7 Rd8 Be3 Rd2 Rb7 Rf2 Bc1 Re2 Nd2 b1B B1b2 B1a2 Nb1 Bc4 Raa7 Bab3 Ra6 Bd3 Ra8 Nd7 Rf8 Nb8 Rd8
krr5/N2N1RpK/1p1B4/3Bb2R/1qP3Bb/1nQ3nn/BB2pq1N/3b1n2 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Ke2 d5 Ke3 Kd7 Kf4 Kc6 Kg5 e5+ Kg6 b3 h4 b2 a4 b6 f4 Kb7 a5 d4 f5 g3 h5 d3 c6+ Ka7 f6 d2 c7 g2 f7 e3 a6 e4 h6 e2 h7 e1B Nf3 g1N Nh2 e3 Nc3 b1Q Bc4 Nh6 Qf3 d1N Bb2 Bd6 f8B Bh4 Ba2 Be5 Bd6 Bg4 c8B Qf8 Bd7 Rg8 h8N Nh3 Kh7 Nf5 Ng6 Ng3 Rf1 Bh5 Bg4 Nd7 Qc6 Qf7 Nf8 Nc5 Nd7 Rgb8 Rf5 Qf8 Rf7 Nb3 Qc5 Rc8 Qa3 Rab8 Nb5+ Ka8 a7 e2 Qb4 Ne3 Qc3 Qe1 Rd1 Qf2 Rd5 Nef1 Qb4 Qd8 c4 Qe7 Qc3 Qf8 Bf5 Bf3 Rc5 Bc6 Bg4 Bf4 Rh5 Be5 Bc7 Qa3 Bd6 Qb4 Nc7+ Kb7 a8B+ Ka7 Bb7 Bb5 Bd5 Ba4 Bde6 Kb7 Nb5 Ka8 Na7 Na5 Ba3 Bd1 Bb2 Nb3 Bd5+
2BqQ3/2RR1pp1/3rb2B/1r2NBqp/n3B1r1/N1b1nKBr/3bP3/6Rk b - - 0 1 illegal: No proof kernel
RNn1rr2/N2kP3/2Qq1p1p/4nRN1/1B3nbB/b4Bp1/1q2n3/2B1KB1r b - - 0 1 illegal: No possible last move
2k2Q2/3pB1P1/R5K1/3r2B1/2n1pqN1/1n1BprB1/b1q2b2/nb1bNRBN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 b4 e5 c4 h5 f4 a4 g4 h3 f5 e3+ Kd3 h2 Ke4 h4 c5 a3 b6 a2 b7 h3 c6 Qf6 b5 Kd8 c7+ Ke8 b6 Ra5 g5 Rh5 g6 Rd5 g7 Nh6 Nf3 Nf7 Bd3 Na6 b8B Bb7 c8N Kd8 Na7 Bc5 Nc6+ Kc8 Rf1 h1B Nd2 h2 Ba7 Rh3 Qe2 Qg5 f6 Qg3 Kf5 Qf4+ Kg6 Nd6 f7 Nc4 Ne1 Rf3 f8B Ba8 Rb1 a1N Qf2 Bg2 Rb3 h1Q Ne4 Qhh2 Ra3 Bh3 Ra2 Be6 Ng3 Bg8 Nh1 Qg2+ Qg3 Qc2 Qf2 Bb7 Nb8 Bc6 Be7 Ba4 Nc6 Bh7+ Kh5 Bb3 Ra3 Ba2 b7+ Kc7 b8B+ Kc8 Bc7 Bb6 Ra4 Nc5 Ra6 Ncb3 Bcd6 Bg8 Bd2 Bb1 Kg6 e4 Bdb8 Qh2 Bed6 Ne5+ Kg5 Ba5 B2b4 Rb5 Ba3 Rh3 Ng2 Nc1 Bb6 Be1 Bd8 Bga2 Qf8 Bf2 Ne1 Nc4+ Kg6 Rd5 Ne5 Ncb3 Ng4 Rf3 Bf4 Qg3 Bad6 Qh2 Bfg5 Qe5 Kh6 Qf5 Bh2 Qf7 Bbg3 Qf4 Be2 d3 Kg6 d2 Bg1 d1B Bde7+ Kc7 Bd3 Kb7 Qf5 Kc8 Qf8+
1RR1nbk1/r2pP1B1/b3Brpb/7b/K1Bn2Np/2qN4/1qR2qQ1/1R2R3 b - - 0 1 illegal: No possible last move, all moves rejected
NnN1R1q1/RKPB1p2/2nbbp1q/1N5Q/rB4p1/q1Nk3n/1n1r2N1/7R b - - 0 1 legal: proof: f4 c5 a4 h5 d4 cxd4 g4 hxg4 f5 b5 f6 exf6 axb5 Rh7 Ra3 Rh6 Ra1 Rh8 Kf2 Ke7 b4 Ke6 h4 Ke5 e4 g5 c4 d5 c5 g3+ Kf3 a5 c6 d3 c7 Kd4 e5 g2 e6 d2 e7 a4 e8N a3 b6 a2 b5 Ra7 b7 Rh5 b6 Ra6 Na3 Bg7 Bb5 Nd7 b8N Kc3 b7 d4 Ke4 d3 Kd5 Rb6 Nd6 Ra6 Ba4 Ra5+ Kc6 Bf8 Qg4 Rh6 h5 d1Q Qf5 g4 Bd2+ Kd4 Bb4 d2 Ne2+ Ke3 Qg6 g1N Nc3 Qc1 Qf5 Rh7 h6 d1N Qd5 Rh8 h7 Nb2 Qf5 Rd5 Qh5 Nh3 Bb5 Kd4 Ba4 Qh6 Bb5 Nc5 Nd7 Na6 Nb6 Be6 b8R Ne7+ Kb7 Ke3 Ba4 Rd2 Bd7 Kd3 Nab5 Nc6 Rc8 Rg8 h8N Be7 Ng6 Rf8 Rab1 a1Q Nh4 Rh8 Ng2 Qdf8 Nf5 Bd6 Ne7 Qa2 Ra1 Qb3 Ra5 Qa3 Ra8 Rg8 Na7 Rg5 Re8 Qg8 Na8 Nab8 Ra4 Ra5 Nec8 Rg5 Ra6 Ra5 Nab5 Ra4 Ra7
1N4R1/2p4R/BkpBQp2/R1b1qnn1/8/1rPbqR2/rNr2BR1/1K2bb2 b - - 0 1 legal: proof: h4 b5 f4 e5 a4 exf4 axb5 g5 c3 gxh4 Qa4 Bc5 Qa6 Bf8 Qc6 dxc6 Kd1 Kd7 Kc2 h5 d4 a5 e4 h3 g4 f6 b4 f3 g5 h2 b6 f2 d5 a4 g6 h4 b5 h3 e5 a3 g7 a2 b7 Nh6 g8R Ra5 d6 Qe8 b6 Na6 b8R Nf5 b7 Nc5 Na3 Ne4 Bf4 Ng5 Ba6 f1B e6+ Kd8 d7 Bc5 Bg3 Rh4 Nf3 Rb4 Rg1 h1R Ne5 h2 Rg2 Rb3 Nac4 Bf2 Nb2 Be1 Rh8 Rg1 Ra8 h1Q b8R Qh3 Bf2 Qe3 Rh7 Qe7 Rc1 a1B Kb1 Ra2 Rb5 Rh1 Ra5 Rh2 Rd1 Q7c5 Rd4 Qd5 Rf4 Qdd4 Rf3 Qdf4 Ng6 Qee5 Nf8 Qfe3 Rh4 Ke7 d8B+ Kd6 e7 Be6 e8Q Bec4 Rh7 Bb5 Ra7 Kc5 Qe6 Kb6 Be7 Bbc4 Bd6 Bb5 Ra8 Bbc4 Rg1 Bb5 Bh4 Rc2 Bf2 Bbd3 Rg2 Rba3 Nd1 Bb2 Rd8 Rb3 Nd7+ Ka7 Rdh8 Ba3+ Nb2 Bc5 Nb8 Kb6 Rg8
1Rr5/bP4K1/npNpk1p1/1R3bN1/3nq3/N1N1bQB1/3qBrN1/1b2Rq2 b - - 0 1 illegal: No proof kernel
1qr4n/p1b1k3/1b3BbQ/3B4/2KR1P1n/pB5p/qNRN2Rn/RrR2n2 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 Ke2 h5 f4 c5 d4 e5 b4 c4 g4 a3 d6 h3 b5 h2 d7+ Ke7 b6 e3 d5 c3 Kd3 e2 b7 e1B g5 e4+ Kc4 c2 g6 e3 g7 h4 Qg4 e2 Kb3 h3 Nf3 Bf2 Qg1 e1N Ba6 Nc6 b8R Ng2 Bc4 Nh4 Ne1 Bb6 Qg5+ Nf6 g8B Ne5 Qh6 Nfg4 Nd3 Neg6 Bb2 c1Q Nd2 Qb1 Rc1 h1N Rb7 Ng3 Rc7 Qe8 d8R+ Bd7 Kc3 Qa2 Bb3 Rb8 Kc4 Nh2 Rcc8 Ngf1 Bf6+ Kd6 Rc5 Bg7 Rdc8 Bf5 Nb2 Rb7 Ra8 Qb8 Bf7 Kd7 d6 Rc8 Bd5 Nh8 Rc6 Ke8 d7+ Kf8 Rc7 Bg6 d8R+ Be8 Rd7 Bg6 Kb4 Ke8 R7c2 Bc7+ Kc4 Rb6 Be7 Bd4 Bf6 Bc5 Bb7 Rb5 Rd4 B5b6 Bh1 Re5 Bd5 Re1 Nb1 Kd7 Rg2 Rd1 Nd2 Ke8 Rc2 Rb1 Bg7 Qb7 Bf6 Rb8 Kb5 Be5 Rc1 Qc7 Bg7 Ke7 Kb4 Rd8 Rc8 Qb8 R8c2 Bec7 Kc4 Rc8 Bf6+
qN2R2R/p7/R1R4N/KR1PQ1q1/1rpk3B/nrr2q1b/1bn1Bp1q/6N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 f5 g4 h5 e3 c5 b6 f3 b7 f4 b5 f2 g5 f3 g6 h3 g7 h2 b6 h4 Na3 h3 Ne2 Rh4 Qd3 Qg5 Qg6 Nc6 b8N Ne5 b7 Nf6 g8R Bg7 Qb1 Nfg4 Qb2 Be6 Rg1 h1Q Nb5 h2 Ra6 Qg2 Qa1 h1Q Rh8 Qgh2 Nd6 Rh3 Nf7 Ke4 Bg2 f1Q Nh6 Qd1 Bf1 f2 Rg2 Rh4 Ng1 Qf3 Be2 Bc8 Kb2 c3+ Kb3 c2 Ka4 Nc4 d5 Na3 Bd2 c1R Ka5 Bb2 Bb4 c4 Be7 Rc3 Bd8 Ke5 e4 Kd4 e5 Ne3 e6 Nec2 e7 Bh3 e8R Re4 Rc6 Ree3 Rg3 Q1g2 Qe1 Qg8 Rgg6 Qg5 Ra6 Rb3 Rgc6 Rec3 Be7 Q5g7 Bh4 Qg5 Nd7 Rd8 b8R Rb4 Rb5 Rb8 Re3 Qc8 Ree8 Rb7 Nb8 Rbb3 Rbc5 R7b4 Rb5 Qb7 Qc1 Qa8 Qf4+ Qe4 Qg3 Qf3 Qe5+
4Qb2/pbR3pR/2N1q1k1/p2RB1n1/1q1r2R1/1qP2Nr1/r2N1nBr/R4K2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 hxg4 a5 f5 a6 bxa6 exf5 a5 b4 Qb6 h4 d5 f4 Kf7 c3 e5 b5 Ba3 f6 e4 h5 e3 h6 g3 h7 g2 f5 d3 Ra2 d4 Rh2 d2+ Ke2 Nd7 Qe1 d1R Rh4 Nh6 Ra1 Rb8 Nf3 g1R Rh5 Qd6 b6 Nc5 b7 Rg3 Bg2 d3+ Kf1 d2 Rh4 Nd3 Rg4 Bc5 Ba3 Qf4 Bb4 Be7 Bd6 Nf2 Bc7 Rc1 Bd6 d1Q Nbd2 Qb4 Bc7 Ra8 b8N Rc2 Bf4 Rd8 h8R Rd4 Rd8 Bc5 Nc6 Bb7 Rd7+ Be7 Rc7 Ra2 Bd6 Rh8 Bf4 Kg8 f7+ Kh7 f8R Qdb3 f6 Nf7 Rd8 Ng5 Rd5 Bc5 f7 Kh6 f8R e2+ Kg1 Kg6 Rb8 Rh2 Rh8 Bf8 Rh7 Nd3 Qf1 e1Q Bd6 Qed1 Qe1 Nf2 Kf1 Qdb1 Bf4 Qf5 Qe7 Qd7 Be5 Qe6 Qe8+
qrRR3R/p1K3p1/4NP2/nqN1BbRq/1pB1q2B/6r1/1R3n2/3nb1Qk b - - 0 1 illegal: No possible last move, all moves rejected
1Q2BNBb/p2B4/nb4p1/1N3B1q/3rRKn1/4nn1b/P1RBp2N/3kr2b b - - 0 1 legal: proof: f4 c5 g4 d5 b4 g6 e4 dxe4 bxc5 Bd7 f5 Be6 g5 Bc8 Qg4 gxf5 g6 f4 g7 Nh6 Qg5 Ng8 Qg6 hxg6 Ke2 Kd7 d4 Ke6 c4 Kf5 h4 Kg4 d5 b5 d6 f5 d7 e5 h5 b4 c6 f3+ Ke3 f2 c7 f4+ Kd2 e3+ Kd3 e4+ Kd4 e2 Ke5 e1B h6 f3 h7 b3 c5 e3 c6 b2 Bg2 f1B Na3 b1N Rh6 f2 Bd5 Bh3 Nc4 f1N Na3 Bb7 c8B Bc5 c7 Nf6 g8B Bb6 Bc6 Na6 Nb5 Nbd2 Nf3 e2 Rb1 Kg3 Rh4 Kf2 Nh2 Ng4+ Kf4 Nf3 Bd2 Nfe3 Rc1 Qe7 d8N Qc5 Bce6 Qh5 Bf5 Rb8 Ne6 Rd8 c8B Rd4+ Bfe4 Ba8 B8d7 Bb7 Nf8 Ba8 Bb4 Bc3 Rc2 Ke1 Be8 Kd1 Bcd7 Rd2 Bef5 Be4 Bd5 Bf6 Bc3 Rd4 Bd2 Bg7 Ne6 Rf8 h8Q Rf6 Qf8 Bh8 Qd6 Rf7 Qb8 Rf6 Nf8 Rc6 Rb2 Rc1 Rc2 Ne1 Rc5 Bh1+ Kg3 Ne5 Bc4 N1f3 Re4 N5g4 Rc6 Kc2 Kf4 Re1 Bg8+ Kd1 Rc2
2BB1Q1r/n2p1RNr/1b2p1b1/3R1RR1/K1b1q3/p1brP3/1NN1kRb1/2q5 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h3 g5 Nd2 g3 Nb1 Nc6 h4 g4 Bf4 Ne5 Bd2 Nf7 Bc1 Ng5 hxg5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Kf7 f4 Ke6 b4 Kf5 c4 Ke4 Kc2 h5 g6 a5 b5 h4 f5 a3 Kb3 g2 c5 h3 g7 a2 c6 g3 c7 h2 f6 e6 b6 d3 b7 d2 b8R Ke3 f7 Rh7 Na3 Bb7 c8N Bd5+ Ka4 Ne7 g8R Bg7 f8R Nc6 Nh3 g1Q Rb5 g2 Nf4 Qh4 Rf5 Bc4 Rbd5 Bc3 Nb6 Na7 Rgg5 Rah8 Nh5 Qe4 Rb1 a1R Rb2 Rb1 Ng7 Ra1 Ra2 Rb1 Qe1 Rb3 Bb2 d1B Qg3+ Qf3 Qb8 Qe4 Qf8 Bc2 Rf7 B2d3 Nc2+ Kd2 Rgf5 Qge3 Ba3 g1B Be7 Kd1 Bd8 Qc1 Rg5 Bf2 Rhg1 h1B Rgf5 Bg2 Rb2 Bc5 e3 Kd2 Nc8 Bb6 Nd6 Bh3 Bg2 Ke2 Bh1 Bf1 Rgg5 Bg2 Nb7 Qg4 Nc5 Bde4 Nd3 Qf3 Rfe5 Bg6 Ref5 Qe4 Ra2 Bcd4 Nb2 Rd3 Rh5 Be5 Rhg5 Bc3 Ra1 Qe1 Rd4 Qd5 Ka3 a4 Rd1 Qd2 Rdf1 Bh3 Bg2 Qe5 Bb7 Qc1 Bc8 Bg2 Rd5 Qe4 R1f3 Be5+ Kb4 a3 Ka4 Bc3 Rf2#
n1Nn3n/1Rpb1RB1/K1P5/1Nrn2b1/1q6/1Rb1Qpp1/b1k1B3/R3bRN1 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 Ke2 a5 Ke1 axb4 f4 hxg4 Ba6 e5 Ba3 e3 Bc1 e4 Bc4 Ra5 Bf1 Re5 fxe5 b5 Ke2 Kd7 c4 Ke6 h4 Kf5 a4 g5 d4 g3 d5 g4 c5 g2 d6 b3 h5 b4 e6 b2 d7 g3 a5 b3 h6 Nf6 h7 Bh6 e7 Bg5 e8R Nc6 a6 Qe7 d8N Nd7 a7 Nb6 a8R Bd7 Nd2 b1N Rh5 b2 R8a6 Na8 Ne6 Nd8 c6 Qb4 Qb3 Nc3+ Ke1 b1B Rb6 f6 Nc4 e2 Rf8 Ba2 Rf7 Nd5+ Bd2 Re8 Nd6+ Ke5 h8R f5 Qa3 f4 Nc8 f3 Rb7 Rg8 Rh1 Rf8 Nh3 g1N Nd4 Rg8 Bc3 Rg7 Nf4 Nh3 Kd2 e3+ Kd3 e1B Nfe2 Rh7 Bb2 Bc3 Nb5 Rh5 Ng1 e2 Qb3 e1B Be2 Qe7 Kc4 Ke4 Rg8 Nhf4 Re8 Ng6 Ref8 Bcd2 Bg7 Bc3 Re8 Ke3 Rh8 Kd2 Re8 Qd6 Re3 Qf4+ Kc5 Nh8 Qa3 Be5 Rb3 Bc3 Qa7 Qd6+ Kc4 Kc2 Qe3 Bb4 Nc3 Ba5 Kb5 Qb4+ Ka6 Qc5 Ne4 Bac3 Ned6 Qb4 Nb5 Rh4 Rh2 Rc4 Rf2 Rc5 Rf1
K3N3/2B2R1q/1p1nb1r1/n4q2/2r1BN2/BQqpr1R1/2pP1N1r/3BqB1k b - - 0 1 illegal: No possible last move
2r5/1RqQB2b/4p2p/B1p4N/K1Bn4/3nR2r/BBrqP1qR/2r1q1kN b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 h4 g5 Bh3 Bh6 Bg2 fxg4 Bf1 g3 Nc3 g4 Nb1 Bg5 hxg5 Kf7 Nh3 Kf8 Ng1 Ke8 a4 Kf7 d4 Ke6 Kd2 Kd5 Kc2 Ke4 f4 c5 f5 b5 d5 b3+ Kb2 b4 a5 g2 g6 g3 a6 Nc6 f6 Qc7 g7 Nh6 g8B Ng4 a7 Nd4 d6 Nf2 f7 Bf5 f8B Rc8 Nh3 g1Q a8R g2 Nd2+ Ke3 Bd5 e6 d7 Bd3 Rb1 c3+ Ka1 b2+ Ka2 b3+ Ka3 c2 d8B Be4 Bfe7 Nd3 Nf4 Kf2 Nh5 Qgh2 Bc4 g1R Ra7 Qg2 Rb7 Bf5 Ra1 b1R Bb2 c1Q Rh2 Qc2 Ka4 Rc1 Ra3 Qc3 Rb8 Rc2 Rb7 Rh1 Ne4+ Kg1 Neg3 Qd2 Bc3 b2 Ba5 Nb4 Re3 b1Q Bf6 Qbc1 Bde7 Nd3 Ba2 Qe1 Bg7 Qcd2 Bgf6 Qgf2 Bg2 Bg6 Bgd5 Qg2 Bdc4 Be4 Rh4 Rh3 Nh1 h6 Rb2 Bh7 Rb7 Rhf8 Be5 Rf1 B5f6 Rg3 Rh2 Rgf3 Qb1 Rh3 Qb5 Qef2 Qe8 Rfc1 Qd7 Qfe1 Bg7 Nf3 Bgc3 Nd4 Bb2
8/1rbpBB2/1b2b1k1/2q2n2/1BBP1nK1/Rn1ppp2/rN1RN1Q1/1R1B1r2 b - - 0 1 illegal: No proof kernel
qR1RB3/8/bq1Nn2r/R2q2p1/N2Pp2b/1pBN1b2/p1NKnQ1N/1k3r2 b - - 0 1 illegal: No proof kernel
3BBq1N/1b1NqN1R/1n1pB2p/b5kN/b3p3/1Pn1r3/rQ2R1pK/N4r2 b - - 0 1 illegal: No proof kernel
5B2/b1b3RR/ppQ2bq1/N6n/rr1pBNR1/nnN2p1K/1P1R4/2kq1R2 b - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 cxd4 f5 b6 a5 Bb7 a6 e6 axb7 exf5 Ra6 f4 Ra2 Qc7 Ra1 Qd8 Kf2 Ke7 Kg2 Kf6 c4 Ke5 h4 Ke4 e3 g5 c5 d5 h5 f5 c6 f3+ Kh2 g3+ Kh3 f2 h6 f4 h7 g2 c7 g4+ Kh2 d3 c8N f3 Ra6 g3+ Kh3 d2 Na3 Bd6 Be2 f1N Qe1 d1Q Ne7 Qe8 Ng6 Nd2 Ra4+ Nc4 Nf4 Na6 b8R Nf6 Rd8 Nc5 Qc3 Bb8 Rd6 Rg8 h8R Nh5 Rh7 Qg6 Bf1 Re8 Nge2 g1B Rdd7 g2 Rdg7 Nb3 Rh2 Kf5 e4+ Kg5 e5 Bd4 e6 g1B e7 Bf6 Rf2 Bh2 Bd2 Rg8 e8R d4 Re4 Rc8 Qc1 Rc5 Nc3 Rb5 Bd3 Rb4 Rg2+ Bg3 Ree2 Bc7 Be4 Bb8 Be3 Bc7 Rd2 Bb8 Nab5 Na3 Nd6 Bc7 Nc4 Bb8 Bb7 Kf5 Na5 Ke5 Ncd5 Ke4 Qc6 Bh2 Rg4 Bg3 Bf2 Bh2 Bg3 Bc7 Nc3+ Ke3 Rf2 Bb8 Rf1 Kd2 Rf2+ Kc1 Rd2 a6 Bh4 Ba7 Bg5 Rc8 Bh6 Rb5 Rc4 Rb4 Rc5 Ra4 Re5 Rc7 Re1 Rb4 Rf1 Bg3 Qd7 Rcc4 Be4 Ra4 Qc6 Rcb4 Rc7 Bh2 Bf8 Bg3 Rcg7 Bh2 Nfd5 Bc7 Nf4
3q1R2/p1qN4/R1bBrQN1/r2nNRpn/p1K5/Rp1B1b2/R2Pk3/3nb3 b - - 0 1 illegal: No proof kernel
1N1Q2N1/R4nnN/B2pNb1p/6P1/q2B1b1r/1bpp2n1/2B1nKN1/k3r1R1 b - - 0 1 illegal: No proof kernel
R1b2R2/1b1pr3/3Bpk1b/3Rnpr1/4R3/QR1B1pNr/2NP4/B1qb1Kn1 b - - 0 1 illegal: No proof kernel
n1N2qBR/p7/2r1p1Pk/1Qb4n/1Bbp3r/2NR2pn/b2N1B2/N4KbN b - - 0 1 illegal: No proof kernel
5B1b/pNPKpBN1/B7/QR1b4/n3q1N1/p1Nb1p2/1b2rkr1/Nr2Rn2 b - - 0 1 illegal: No proof kernel
1BR5/1Rb2qp1/Qrp3R1/NbP1n2B/2NR3n/q1p4K/1NkRp3/1n3nr1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 g4 h5 c5 hxg4 Qc2 Nc6 Qc3 Nb8 Qc4 dxc4 f4 Kd7 Kf2 Ke6 Kg3 Kf5 h4 a5 d4 e5 b4 c3 h5 a4 d5 e3 b6 Ke4 h6 a3 b5 a2 b7 e2 b6 Kd3 h7 e4 f5 e3 f6 Ne7 d6 Rg8 h8Q Kc2 f7 e1N d7 Nbc6 b8N Ne5 b7 N7g6 Qh6 Nh4 Be2 N1f3 Qa6 Qe8 d8R Nh2 Rd4 Bd6 f8R Bd7 Nf3 Qf7 Rhd1 Bb5 Nc6 Rd8 Na5 c6 b8R Bc7 Rb7 Rd6 Ba3 Rg6 Bc1 Rg5 Ra8 Rb8 Nbd2 Rg6 Rb1 a1Q Ndc4 Qa3 Nfd2 Rg5 Bf3 e2 Nb2 Rg6 Ndc4 Nf1+ Kf2 Rg5 Bf4 g3+ Kg1 g2 Bh5 Rg4 Kf2 g1N R1d3 Rf8 Rc8 Ngf3 Rbd1 N3d2 Rg3 Nb1 Kg1 Ne3 Kh2 Nf1+ Kh3 Re8 Re3 Rg1 Rg3 Rg8 Rg6 Rh8 Ra8 Rb8 R1d2+ Kc1 Rba7 Rb7 Rc8 Rb6 Rb7 Nd7 Rd1+ Kc2 Bd6 Ne5 R1d3 Bd8 Bb8 Bc7 Rd2+
n2b1k2/3P2pn/R3K1b1/Rr2B1pp/2pN2r1/Q3qR2/B4n1R/1q1N1RNn b - - 0 1 illegal: No possible last move
1Q2K2R/1p2N2R/2N3n1/3N3p/N2r1BR1/3bpBPp/1bbqN3/qn2rbk1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 e5 Kd5 d6 c4 b3 f4 b2 a4 e4 g3 d3 c5 d2 c6 Nd7 c7 Ne5 a5 Bg7 a6 Nc4 a7 Na3 Nc3 b1B Bg2 Bd3 Bf3 Nb1 Na4 h6 Qb3 d1B Ne2 B1c2 Rh3 Bd7 c8N B7b5 Ne7 Rc8 a8N Rc4 N8b6 e3 Nc6 Qa8 Ba3 Qa5 Rh1 Qd2 Qb4 Rh7 Qa5 Re4 Qa8 Ba6 Qb8 h3 Rf1 h5 Ra2 Rc4 Rb2 Rc3 Rb4 Bh8 Re4 Rd7 Bb4 Ra3 Re7 Ra1 Rh7 Nh6 Rd1 Nf7 Ba3 Ne5 Rc1 Bb3+ Rc4 Ng6 Bc5 Bbc2 Rb4 Bg7 Bd4+ Kf7 f6 Bab5 Be5 Bbc4+ Kd4 Ke6 f7 Kf5 f8N d5 Kc5 d4 Nd5 Bb5 Kb6 Rd6 Kc7 Bh8 Bg2 Kg4 f5 Bbc4 f6 Bb5 Bf1 Kf3 f7 Kf2 Bg2 Rd8 Bf3 Bbc4 Nc1 Kg1 Bf4 Ba6 Rc4 Bf1 Rb4 d3 Rc4 Bb2 Re4 Re8 Kd7 Re5 Rc4 Re4 Kd8 Rd4 Ke8 Qf2 Rb4 d2 Rc4 d1Q Ne2+ Kh2 Rb4 Bad3 Rc4 Qd2 Rb4 Qg1 Rc4 Nh8 Ng6 Qh1 Nge7 Ng6 Nc1 Kg1 f8R Nc3 Rfh8 Rb1 Na2 Re1 Nc1 Nb1 Ne2+ Kf2 Bc7 Rf4 Qd8 Na3 Rc5 Bg2 Ndb4 Rf1 Rd5 Rd4 Rg5 Rb1 Nc8 Qhc1 Be5 Bf1 Rg4 Qce1 Nd5 Rc1 Nec3 Kg1 Bf4 Ra1 N8e7 Qb1 Ndb6 Qa2 Nbd5 Re1 Qc8 Nb1 Qb8 Qa1 Ne2+
1B2q3/Rp3RPB/rN1R1Rn1/bn1b1Q2/1pr5/p1N2bpq/1kbK4/N2R4 b - - 0 1 illegal: No proof kernel
2B1R2Q/pR1KbNr1/pN4N1/3b2nn/2kp4/n1Bbq3/P1N2p2/4qNRq b - - 0 1 illegal: No proof kernel
1k1K1BQ1/p1p1prNn/Pp6/r2Nr3/2B1Rn1n/q1B2bRR/3B2q1/3B3r b - - 0 1 illegal: No proof kernel
1Q1b1kr1/Rp4B1/3bn1q1/2pbRN2/b4Nq1/1BP3Bp/1pRB3K/1n1nB3 b - - 0 1 illegal: No proof kernel
br1n4/1n1N4/2bn3B/2Np3n/pQpk3R/2N2B1p/P4nNr/1BRNb1K1 b - - 0 1 legal: proof: d4 f5 c4 e5 c5 exd4 c6 bxc6 Qb3 c5 Qd1 c4 g4 g5 h4 fxg4 Bh3 g3 Bg2 g4 Bf1 Qg5 hxg5 Be7 Bh3 Bd6 Bf1 Bf8 f4 Ke7 b4 Kd6 e4 a5 b5 Kc5 f5 h5 g6 d5 e5 h4 b6 g2 Kf2 c3 e6 g3+ Kf3 d3 b7 d2 g7 c2 e7 Nh6 g8N Nc6 b8N Kd4 e8B Nd8 f6 c5 f7 c4 Rh2 Bb4 f8N Nf5 Nfd7 Bb7 Na6 Rb8 Rh3 Nd6 Bh5 Ba8 Qe1 d1B+ Be2 a4 Bd2 c1N Nac5 Nb3 Bg6 Na5 Ne7 Nab7 Bh6 Bc2 Bd1 Bf5 Nc3 Be6 Rh2 Rh7 Nh3 g1N+ Kg2 Ne2 Bf5 Nf4+ Kg1 g2 Nf2 Nh5 Ng6 Bf7 Qe7 Be8 Bb1 Rh8 Bf3 Rh7 Nf6 Bc6 Nfd1 Rh8 Nf4 Rh7 Kf2 g1N Ng2 Nh3+ Kf1 Rh8 Nfd7 Nf2 Kg1 Rh7 Bc2 Rh8 Rc1 Rh7 Bb1 Rh8 N3e4 Be1 Nec3 Re8 Qh7 Re2 Qc2 Rd2 Qb3 Re2 Rh3 Rd2 Qb4 Rc2 Rg3 h3 Rg4+ Nfe4 Nf4 Rh2 Rh4 Nf2 Ng2+
1bb2q1R/1p5N/3pb3/bN2N2b/2Nr1B2/pKQP1p1N/1nB3b1/1R1B2kn b - - 0 1 illegal: No proof kernel
q6N/2b3BK/2N1R3/rRpN1n1B/2pb2bk/p1R3n1/N1rp1NPp/1r3Q2 b - - 0 1 illegal: No proof kernel
1b3r1n/3bnpqr/P3B1B1/2Bpp2Q/3RBk1K/B4pRN/7p/N2b1r1R b - - 0 1 illegal: No proof kernel
N1R1RN2/1p2K3/b3Bp2/1rB3p1/RBbqnp1k/5n1P/Q2prb2/1n3R1R b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 d6 c4 b3 a4 g6 e4 d3 h6 d2 e5 b2 h7 Ra5+ c5 Ra6 e6 Bh6 h3 Qb6 c6 Qb3+ Bc4 Rb6 c7 Bd7 c8R Qa2 e7 Kh4 e8R Nc6 a5 Ne5 a6 Nf3 a7 Qa4 a8R Bb5 Nc3 b1N Nge2 Ba6 Qb3 d1B Be3 Rb5+ Bc5 g5 Rf1 Bg7 Qa2 Bb3 Nd4 Be5 Ne6 Bd4 Rh1 Bf2 Nf8 Qb4 Na4 Qd2+ Ke4 d5+ Kf5 d4 Be6 d3 Nb6 Nf6 Ra7 Bd5 Na8 Ne4 Rf1 Rg8 h8B Bc4 Bc3 f6 Bb4 Qe3 Rh1 d2 Rf1 Rg7 Rh1 Rd7 Kg6 Rd3 Kf7 Qd4 Ke7 Re3 Rf1 Re2 Rh1 Rb6 Rf1 Bab5 Ra3 Ba6 Ra4 Rb5 Rh1 Nbc3 Rac1 Nb1 Rcf1
1N4B1/p1KB2pB/1R3p2/6PR/1p2r1bb/1NBb4/pNnB2r1/kq2Qn1n b - - 0 1 illegal: No proof kernel
3NQ3/R2q3q/N1n1bbpR/1kr1B1PB/1p3prR/2p1N3/1bR1Kp2/3n2R1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 g5 exf4 Qb3 Bg4 Qg3 Bc8 Qg4 hxg4 d4 Kd7 a4 c5 e4 b5 h4 f5 h5 g6 h6 c4 h7 g3 e5 f3 d6 Kc6 a5 f2+ Ke2 g2 d7 b3 e6 c3 d5+ Kc5 a6 b2 e7 b4 e8Q Nc6 d6 Qb6 d8R Nf6 a7 Ng4 d7 Kb5 Nf3 g1B Rh6 Qd4 Ne5 Ne3 Nd3 Be7 Nc5 Bf6 Nd2 b1Q Nc4 Nd1 Bf4 Bh2 Be5 Bf4 Na6 Bc1 Ne3 f4 Ra2 Qf5 Rc2 Qh3 Bg2 Qd5 Bf3 Bb2 Bh5 Rb8 a8R Rb7 Qg8 Rc7 Ra7 Qd6 Re8 Qh4 d8N Be6 Qf8 Qd7 Qe7 Na5 Qf7 Rc5 Re7 Nc6 Qe8 Rg8 h8R Rg7 Bg4 Rh7 Bf3 Qh2 Rh4 Rh5 Rh6 Qh3 Reh7 Qh1 Rg4 Rh4 Rg1 Rg4 Rh4 Rg2 Bh5 Rg4 Rd2 Qhd5 Rh6 Qh7 Rc2 Qd4 Qh8 Qdd7 Qe8
2K1bR2/N2N2R1/pR4pk/1B2qn2/pb3p2/r4r2/P2Qp2R/qRB1N1nq b - - 0 1 illegal: No proof kernel
6K1/3pPBpB/2k1b2R/B1r2r2/pNnnp2b/1bpNN3/2qQ1N1N/2q3R1 b - - 0 1 illegal: No proof kernel
1R2b3/pR1pk1Kp/B1B2p2/1pR4Q/rNbqn3/1n1RR3/2rPN3/2B1qb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 a5 exf4 Ra3 Bc5 Ra1 Bb6 axb6 c5 Ra3 cxb4 Ra4 Qe7 Ra1 Qd8 Kf2 f6 Kf3 b3 Kg4 b2 Kh5 f3 g4 h3 e4 h2 c4 f2 c5 Ke7 e5 Bb7 c6 Ke8 g5 Ne7 Kh6 Qc8 c7 Kf7 g6+ Ke6 g7 Re8 g8R Bf3 b7 Na6 b8R Nc6 Nc3 b1Q Na2 Bh5 Kg7 Nd4 Ne2 Ke7 e6 Nb3 Nb4 Nac5 Rb7 Ne4 Bg2 f1B Ra3 Qa1 Rg1 h1B Bf3 Bg6 Rg5 Qd4 Rc5 Qb8 c8B Qg3 Rh8 Qe1 Rg8 Ng5 Bc6 Bd5 Rf8 Ne4 Rg8 Bc4 Rh8 Na1 Rd3 Nb3 Rg8 Kd6 e7 Bh5 Rb6 Bhf7 Ba6 Rac8 Rh8 Ke6 Rb7 Rg8+ Kh6 Rg4 e8R+ Kd6 Re7 Be8 Ree5 Rh4+ Kg7 Rc7 Nf4 Rc8 Qh5 Rc7 Ne2 Rf4 Rf5 Ke7 Rfe5+ Be6 Rg5 Rf3 Bd5 Na5 Rg3 Bg6 Rhb8 Be8 Rc4 Bg8 Ra3 Rc6 Ra1 Ra3 Re3 Ra4 Raa3 Rc8 Rad3 Nb3 Rc6 Be6 Rcb6 Rc3 Rc6 Rc2 Rc5 B6f7 Bc6 Be6 Rh3 Bc4 Rhe3
2B1r1kB/2R5/n1N2bbp/1Bqp1p2/3BN3/1B1p2r1/P1rQ3p/r1nK1N1R b - - 0 1 illegal: No proof kernel
1Bkrb1b1/1R1p4/1B5K/p2B1pB1/1BQ2qpR/4n1P1/1bR1pNN1/3bn1r1 b - - 0 1 illegal: No proof kernel
n5n1/2kb1p1R/B7/1p1B1NbN/3Bb1pB/Nbp3Rq/pPQ1r1B1/3K2n1 b - - 0 1 illegal: No proof kernel
b1B3Q1/1npq2N1/2B2rp1/B2p2k1/2pbp3/1RpBNPrR/1r5B/4RKn1 b - - 0 1 illegal: No proof kernel
BQN2B1R/3Bp3/1p4KP/1b2R3/r3n1p1/B3k1N1/p1nRr3/qr4N1 b - - 0 1 legal: proof: e4 h5 g4 d5 gxh5 a5 b4 f5 exf5 a4 b5 c5 d4 cxd4 b6 g6 Qxd4 Bh6 Qd1 Bg7 c4 Bb2 a3 Bxa3 c5 d4 c6 Bd6 c7 Bxc7 bxc7 a3 Ke2 Kf7 Kf3 Kf6 Kf4 a2 h4 d3 h6 d2 h5 Bd7 c8B Ra7 h7 Ra6 h6 Ra5 Rh2 Qb6 Ba3 Qb2 Nc3 Be6 Qb1 d1R Bd7 Qe2 Bg2 Qd3 Nce2 Re1 Ng3 g5+ Kg4 Ke5 Kh5 Kd4 f4 g4 Kg6 Qf3 f6 Bc4 f5 Qf1 f7 Nc6 f8B Nb4 f6 Ke3 f7 Nf6 Rh5 Bb5 Re5+ Ne4 Qb2 Ba4 Rd1 Nc2 Rd2 Bb5 Qb4 Ra8 Qd6 Rb1 Qb8 Ra4 Rf2 Na1 Bg7 b6 f8N Rc1 Ne6 Rf8 h8R Nc2 Rd2 Rf2 Nd4 Re2 Nc6 Ra1 Na7 Qb1 Red5 Nf2 Nc8 Qb2 Be4 Rb1 Re5 Qa1 Ba8+ Ne4 Bf8
1RqN4/3n3n/pRN3Q1/3K2N1/2nb2Pn/2Bqr3/1B3nn1/1knRBN2 b - - 0 1 legal: proof: d4 c5 c4 cxd4 a4 b5 axb5 e5 g4 g5 f4 gxf4 b4 Bb7 h4 Bc6 c5 Bh6 b6 Bf8 b5 Bd5 Bg2 e4 Bf3 Bb7 c6 exf3 cxb7 Na6 Na3 Rc8 Nb1 Nb8 Ra3 Rc5 Ra1 Rg5 hxg5 Qc8 Rh2 Qc7 Rh1 Qd8 Kf2 Ke7 e4 Kd6 g6 Ke5 g7 f5 Qb3 d5 Ra4 h5 Qc3 h4 Qb3 a6 Na3 d3 Rh3 d4 Rb4 d2 Qc2 d1Q Bd2 d3 Nb1 Bc5+ Be3 d2 Ne2 Bd4 Rh1 h3 Rf1 h2 Rb3 Nd7 b8N Ngf6 g8N Qc8 b7 Rh3 b6 Nh7 Nbc3 Qb1 Rd1 h1N+ Kf1 f2 Kg2 f1N Nh6 Rf3 Ng3 Nh2 Bf2 Re3 Be1 Nf3 Nf1 Ng3 Qd3 Ne2 Nc6+ Kd6 b8B+ Kc5 e5 Nh4+ Kf2 f3 e6 f4 e7 Nc1 Qg6 Kc4 e8R Qc2 b7 Qd3 Kg1 f2+ Kh1 f3 Be5 Qe4 b8B Kd3 Nf7 Kc2 Rb6 Qf5 Bbd6 Qd3 Bb4 Kb2 Ne4 Kb1 Nh2 f1N Nfd8 f2 Ng5 Rg3 Bh8 Ne3 Nf1 Nc4 Bg7 Re3 Bc3+ Ka2 Bb2 Kb1 Be5 Bc5 Bec3 Bd4 Ng3 f1N Kg1 Nh2 Kf2 N2f3 Nf1 Ng2 Re7 Nde5 Reb7 Nd7 Rb8 Nfh4 Qg7 Ka2 Qg6 Nb3 Rc1 d1N+ Kg1 Nf2 Rd1 Nc1 Kh2 Nf3+ Kg3 Kb1 Bed2 Nge1 Kf4 Ne4 Kf5 Nh4+ Ke6 Nf2+ Kd5 Neg2 Be1
1n1N1kn1/1K1p1B2/1NR1q3/1n2p3/rQ1PR1R1/1b4bq/2bBBNB1/q7 b - - 0 1 legal: proof: b4 a5 h4 f5 e4 fxe4 a4 b5 axb5 g5 c4 gxh4 Rxa5 c5 Ra1 cxb4 c5 Ra3 Bxa3 Na6 Bc1 Nb8 Ke2 h5 Ke3 e6 Kd4 b3 g4 e3 f4 h3 b6 e2 f5 e1Q g5 b2 g6 h2 c6 h4 b7 h3 g7 Rh4+ Qg4 Qe7 f6 Rh6 f7+ Kd8 Be2 Rf6 Nc3 b1N Ra6 Qh4 Nd5 Qe1 Nb6 Qa3 c7+ Ke7 d3 Rf1 Bd2 Nf6 g8B Qa1+ Kc5 Nc3 Qb4 Nb5 d4 Bh6 f8N Bf4 Bf7 Ng8 Be8 Bg3 Bf7 e5 Ne6 Qeb1 Nd8 Qg6 Qb3 Kf8 Qb4 Nc6 b8R Bb7 c8B Qe6 Rba8 Rf3 Rb8 Ra3 Rba8 Ra5 Rb8 Ba8 Bb7 Ra4 Rc8 Nb8 Bg2 Bd5 Rc6 Bb3 Ra8 Ra2 Ra3 Bc2 Re3 Ra4 Re4 Bb3 Nf3 Bc2 Rg1 h1Q Ng5 h2 Nh3 Bb3 Nf2 Bc2 Bgf1 Qf3 Bh3 h1B Bg2 Qh5 Nc4 Qhh3 Kb6+ Qe7 Kb7 Qd6 Qc3 Qde6 Nb6 Bb3 Bgf1 Bf3 Bg2 Bg4 Qc4 Bf5 Qb4+ Qd6 Rg4 Bfc2 Re1 Qe7 Bec4 Qd6 Ree4 Qe7 Be2 Qd6 Qc4 Qe6 Qb4+
nN4b1/N6r/q4B1r/R4B2/bNR2k1q/1nQ1rq1r/KP1B1R2/1rrB4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 c4 Ke6 Kc2 Ke5 Kb3 d5 e4 h5 c5 f5 g6 a5 g7 h4 b6 a4+ Ka2 f4 b7 g2 c6 f3 c7 a3 Bh6 h3 Qa4 d3 Bd2 f2 Bc3+ d4 Bb4 h2 Qa6 d2 Bd3 d1Q Be1 f1R Bd2 g3 Be2 Rh7 Qd3 Nd7 b8B Ne7 g8B Nc6 Be6 Rf6 Bf5 Rfh6 Nc3 Qh4 Rc1 Nb6 Ka1 Na5 Kb1 Be6 Na2 Bg8 Nb4 Ra6 Ka1 Na8 c8N+ Rad6 Kb1 Nb3 Na7 Qf1 Bc7 Qf3 Bd8 Rde6 Rc4 Re8 Qc3 a2+ Kc2 a1Q B8g5 Qe3 Bf6+ Kf4 e5 Qa6 Nf3 g1R e6 g2 e7 Rf1 Rg1 h1R Ne5 Rh3 Nd7 Ra1 Rh1 g1R Nb8 Raf1 Rh2 Rh1 Be1 Qf3 Kb1 Rhg1 Rc5 Rh1 Ra5 Rhg1 Ka2 Rh1 Bf2 Rb1 Rg2 Rhc1 Be1 d3 Rh2 d2 Rf2 Rd8 e8R Rd3 Rc8 Re3 Rc6 d1B Rc5 Nd4+ Rc4 Bc2 Bd2 Ba4 Be4 Nb3 Bd1 Kg4 Bec2+ Kg3 Be4 Kf4 Bf5+
bq5b/b4Nr1/6nb/1kPB1NnQ/Rr3n1B/7r/2RK1Nb1/R1Rn3B b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 h5 exf5 gxf4 g5 Nc6 Qe2 Nb8 Qg4 hxg4 b4 e5 c4 d5 h4 Kd7 g6 a5 g7 f3 h5 e4 h6 a4 h7 g3 f6 a3 f7 f2+ Ke2 g2 b6 Kc6 b7 a2 Nc3 e3 Na4 d3+ Kd1 d2 Rh5 d4 Ne2 g1B Ba3 Nf6 g8B Nbd7 b8Q Ne4 Rh2 Bb7 Nb2 Ng5 Ng3 Ra7 Nf5 Ne5 Nd3 Ng6 Qe5 Bh6 f8R Qb8 b5+ Kb6 Rc8 e2+ Kc2 d1N Be7 e1N+ Kd2 Ng2 Bd5 N2f4 Bfg2 f1B Nf2 d3 Bh1 Bg2 Rc5 Ka5 b6+ Ka6 Bf6 Ba8 b7 Kb6 Qe2 Ra4 Qg4 Rb4 Qh5 Rg8 h8N Rg7 Nf7 Ka6 Rc1 a1B Rh4 Bd4 Rc8 Ba7 c5 Kb5 Re8 Bh2 Re1 Bg1 Nh3 Bd4 Nf2 Rg8 Be7 Bh8 Ra1 Rg7 Bf6 Qd8 b8R+ Qb6 Rbe8 Qc7 R8e2 Qb8 Kc1 d2+ Kc2 Nc3 Rec1 d1R Rg4 Rg1 Kd2 Nd1 Be7 Nfe6 Rgc4 Nef4 Ree4 Re1 R4c2 Re3 Bd8 Rh3 Bf6 Nge6 Bh4 Ng5 Rec4 Rb1 Rca4 Rb2 Rab1 Rb4 Rba1
rnqb1nn1/QR1B2qb/1n4N1/1Pkb4/2b2N2/2r2qBR/NR6/K3R1B1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 Ke7 g4 Kd6 d4 h5 Kd2 c5 Kc2 f5 Kb2 f3 g5 h3 g6 h2 g7 f4 Qd2 c4 Na3 c3+ Kb1 h4 Qd1 h3 Qa4 b3 Be3 f2 Nc2 f3 Ne2 b2 Ra2 Bf5 Nf4 Qc8 Nb4 Be7 Qa7 Bd8 Bg2 f1N Bg1 f2 Ng6 Nh6 g8R Ne3 Rg7 f1B Rb7 Bc4 Bf3 Be6 Bg4 Ng8 Bf5 Rh7 Bg4 Rc7 e5+ Kd7 d6 Nd5 Bf5 Nb6 d5 Ne7 Ra3 Ng8 Rb3 c2+ Ka2 b1B+ Ka1 c1Q Rb2 Qh6 Na2 Qg7 Bg4 Nf6 Bf5 Nh7 Bg4 Nf8 Bf5 Ke8 d7+ Kf7 d6 Bed5 e6+ Kf6 Nh8 Ke5 e7 Bc2 Bg4 Bh7 Ng6+ Ke4 e8R+ Kd3 Re3+ Kd4 Be6 Kc5 Bg4 Be7 d8N Rc6 Nf7 Bd8 d7 Rc7 Nfh8 Rc6 Bf2 Rc7 Rg1 h1N Nf4 h2 Rge1 Ng3 Nhg6 h1Q Bg1 Nh5 Be6 Qg2 Rh3+ Qf2 Bg4 Nf6 Be6 Ng8 Bg4 Bh4 d8B Rc6 Bc7 Bd8 Bh2 Qf3 Bd7 Re6 Bg3 Re3 Bh2 Rc3 Bg1+ Qf2 Ne2 Qe3 Bg3 Qf2 Nef4 Qe3 Rf2 Qf3 Rb2+
N1Nqr3/K1n3q1/BBq2b2/N2Q1rb1/4b1kB/3RpnP1/3rR1Nn/4R3 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kd7 Ke3 h5 Kd4 e5+ Kc4 c5 d4 h3 f4 b3 g3 h4 d6 Ke6 b6 Kf5 Kb5 h2 b7 b2 d7 c4 d5 e3 d6 c3 Ra7 h3 Ne2 e4 Ra2 c2 Qd5+ Kg4 f5 Nf6 Nd2 b1R+ Nb3 Rh5 Nf4 e2 Be3 e1N Ng2 c1B Bb6 Bg5 Re2 Rd1 Na5 Na6 b8N e3 Nbc6 Bb7 Na7 Nf3 Nc8 Nc7+ Kc5 Rd2 Rg1 Qe7 d8B Bg7 Rh1 Qf7 d7 Bc6 Rg1 h1Q Be7 h2 d8R Bh8 Rd7 Qg7 Rd6 Ng8 f6 Nh6 f7 Bb7 f8N Bc6 Na7 Re8 Nd7 Ba8 Nc8 Bc6 Qa2 Ba8 Rd3 Be4 Nh4 Qg2 Qd5 h1Q Kc6 Qf2 Kb7 Qe1 Bd8 Qea1 Ng2 Qaf6 Ka7 Qc6 Re1 Qh4 Rh1 Qf7 Be2 Bhf6 Rhf1 Qg7 Rf2 Bf4 Bf1 Rf5 Rfe2 B4g5 Nc5 Nf7 Na6 N7e5 Be7 Nh2 Bd8 Ne6+ Nc7 Nef3 Be7 Qhh8 Na8 Nc7 Bd6 Qhg8 Bf4 Bh6 Bg5 Q8h8 Bh4 Bhg5 Qe6 Qhf8 Qd7 Qfe7 Qd5 Qd8 Rc3 Ng1 Rf2 Re6 Ba6 Re8 Rfe2 Ngf3 Rd3
2qB3b/5Q1b/n1nB2q1/BK1R2RN/N5Pn/1p2R2r/N2Nn3/1rn1k2b b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 g5 g3 gxf4 Na3 h5 Nb1 h4 Bg2 h3 Kf1 hxg2+ Kf2 Rh4 Ke1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 a4 e5 d4 c5 f6 e4 g4 Kh4 a5 b3 a6 f3 d6 b2 d7 e3 d5 e2 a7 e1N d6 f2 f7 f1B+ Ne2 g1N Qd5 Bg7 f8B Bg2 Ra5 Nef3 Bd2 Na6 Qf7 Rb8 a8N Ne7 Nec3 Ne2 Na2 Nc6 Kb5 c4 Re1 c3 Nb6 c2 Na4 c1N h3 Kg3 h4 Kf2 h5 b6 h6 Bh1 h7 Qe8 d8R Bf5 d7 Nh4 Bd6 Bf6 Na3 b1Q+ B2b4 Qg8 Nc4 Qg6 Nd2 Qc2 Rg8 Be5 d8B Rb7 Rg1 Bb2 Rg3 Ke1 Re8 Qc3 Re5 Bb1 Rh3 Qcc2 Rg5 Qcf5+ Kc4 Qc8 Re3 Bf6 Rac5 Rb8 Ba5 Bg7 Rf3 b5+ Kd5 b4 Kc4 Qf6 Bdb6 Re8 h8N Bh7 Ng6 Re3 Bd8 Bh8 Nf4 Qg6 Rcd5 Rb3 Nh5 Rb1 Nb6 Rb7 Rfd3 Re7 Ra3 Re3 Kb5 Rh3 Re3 b3 Na4
2q2RBb/R3NR2/2P2B2/nr1nk2K/N2pb2Q/1rRqN1b1/q4n2/q4B2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 Kf7 Kf3 Kf6 Kg4 h5+ Kf4 d5 g4 e5+ Kf3 e4+ Kf4 d3 c4 d2 b6 h3 b7 h2 c5 h4 Nh3 d4 Ra7 b3 Qe1 d1Q Nc3 e3 Na4 Nc6 b8N Na5 Nc6 b2 Ne7 b1Q c6 e2 f3 Rb8 Nf2 Qdb3 Nd1 h3 Ne3 Rh5 Qh4+ Rg5 Kg3 Q1a2 f4 e1B+ Kf3 Bg7 Rg1 h1N Rg3 Kf7 f6 Ke6 f7 h2 f8R Nf6 f5+ Ke5 Rf7 Nd5 f6 Bh8 Rh3 Rh5 g5 Bf5 g6 Qd3 g7 Be4+ Kg4 Bg3 g8B Rb3 Bd2 Rf5 Bc1 Qc8 Bd2 Rf3+ Kh5 Rb5 Ng2 Bf4 Rg7 Qdc2 f7 Nb3 f8R Na5 Be2 Nf2 Rgf7 Rfb3 Rc3 Bg3 Bg5 h1Q Ne3 Qha1 Bf1 Qd3 Bf6+
nq1R2NN/8/1b1RB3/1k1K1nB1/3nNq2/6RP/1BRr1qqp/1nrQ2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 d4 exf4 d5 h3 d6 h2 Nd2 cxd6 Nb1 d5 Ra4 d4 Ra2 Bb7 Ra1 Bc8 e3 h5 Qe2 h4 Qd1 h3 Bd3 Bb7 Ne2 Bc6 Rg1 h1N Rf1 h2 Rf2 Bd5 Ra6 Be6 Ra1 Bh3 gxh3 Qh4 Na3 Qg5 Nb1 Qd8 Kd2 a5 b4 f5 c4 d5 e4 Kd7 b6 Kc6 c5 f3 e5 a4 e6 a3 e7 a2 e8R f4 b7 Nf6 Ba3 Ng3 Be4 d3 Kc3 d2 Kd4 Kb5 c6 Bc5+ Ke5 d4 c7 d3 c8N Nf5 Qc2 d1N Rf1 d2 Re7 f2 Re6 f3 Ne7 Ne8 Ng8 Nc3 Bb2 d1Q Nf4 Qe1 Qd1 Bb6 Nd2 Nb1 Rg1 f1Q Rg3 f2 Ng6 Qg2 Rd6 f1Q Kd5 Nc6 b8B Qef2 Bf3 Rh6 Ne4 Ncd4 Nh8 Ra3 Bg4 Rd3 Bc7 Qb8 Bd8 Rd2 Bg5 Rh7 Rd8 Rc7 Rd6 Nfg7 Be6 Rc1 Rc3 Ngf5 Rc2 Ka4 b5 Nc7+ Ke5 Na8 Kd5 Bc7 b6 Kb5 b7 Bb6 Rc8 Qf4 Rc3 Q1f2 Rc2 Qd8 b8R Qc7 Rbd8 Qb8 Qh5 Na3 Rb1 a1B Bc3+ Bb2 Ra1 Nb1 Qd1 Ba3 Bb2 Bac5 Ra3 Qe1 R6d7 Nc6+ Rd3 Bg1 Rd6 Ncd4 Re3 Qef2 Rg3
k1r1Nn1b/r4NQR/8/2Rb1BK1/6pB/qq2nbR1/Nq2RbP1/4B1q1 b - - 0 1 legal: proof: b4 b5 c4 e5 f4 exf4 h4 d5 cxd5 a5 a4 axb4 axb5 Qd7 h5 Qh3 Qa4 Qxh5 Qd1 Qh2 Kf2 Kd8 Kf3 h5 e4 c5 d4 Kc7 d6+ Kb7 e5 f5 d7 g5 d8B c4 b6 b3 e6 g4+ Ke2 f3+ Ke3 b2 d5 f4+ Ke4 c3 Kf5 h4 d6 h3 d7 c2 e7 f2 e8N f3 Ra5 Nh6+ Kf6 Nf5 Ne2 Ne3 Nec3 Qe5+ Kg6 h2 Rb5 Bc5 Na3 b1Q Nc7 Qb3 Nc4 Ra7 Na2 Qeb2 Bd3 f1B Kg5 f2 Bd2 c1B Be1 Be2 Ne5 f1Q Bf5 Bf3 Qd4 Qg1 Ne8 Ka8 Nf7 Bcb7 Qg7 Bbd5 Be7 Q2a3 d8R Bb2 Bf6 Bcd4 Rc5 Rg8 Rd6 Nd7 Re6 Nf8 Bd8 Qf2 Re7 Ba1 Re4 Qfb2 Be7 Nc2 Re2 Bf2 Bd8 Ne3 b7+ Kb8 Kf4 Rh8 Bh4 Rg8 Kg5 Rh8 Rf1 h1Q Rg1 Qh2 Rh1 Qg1 Rh3 Rh6 Rg3 Rc6 Ra5 Rc8 Rb5 Ra5 Rc5 Ka7 b8R Ra6 Rb6 Ka8 Rh6 Ra7 Rh7 Qc1 Qh6 Bh8 Qf6 Qcb2 Qg7
5Bbq/2p4r/1B2nnKb/3RbB2/6B1/1rPNN1n1/RRNk2b1/q3Q2n b - - 0 1 legal: proof: b4 a5 h4 f5 e4 g5 d4 gxh4 a4 e5 dxe5 b5 axb5 fxe4 Qd2 axb4 Qe2 Ra5 Qd1 Ra8 Ke2 Kf7 Ke3 Ke6 Kf4 h5 g4 d5 c3 b3 b6 d4 g5 Kd5 e6 e3 Kf5 b2 f4 d3 g6 Kc4 g7 e2 b7 e1B Qe2 h3 Ra5 h4 Nf3 h2 Be3 h3 Ra2 Rh7 Bb6 Bg3 Ne1 Nd7 b8R Bb7 e7 Nc5 e8N Ne6 Kg6 Nf6 g8B Bh6 f5 Be5 Ng7 Bg2 Na3+ Kb3 Qf2 b1Q Nac2 d2 Be2 d1B Nd3 Qa1 Bg4 Ra3 Qe1 Be2 Rf1 h1N Rf4 h2 Rd4 Qf8 Rd5 Ng3 Bf7 h1N Rb7 Nd8 Be6 Qh8 Bd7 Ne6 Rb8 Ng8 f6 Kc4 f7 Rb3 f8B Nf6 Nf5 Bef3 Rd6 Bd5 Bc8 Ng7 Rd8 Bg8 Rd5 Ne6 Bg1 Ra3 Rbb2 Rb3 Bb6 Nd4 Be6 Be4 Nf4 Bg2 Ne2 Kd3 Nfe3 Bf3 Bef5+ Be4 Qb1 Kd2 Nf4 Bg2 Nd3 Ne6 Qe1+
nn1Rq2Q/2nN1N1r/3KnBrR/1k1bN3/4p1P1/1Rn1n3/BB1r4/2Bq4 b - - 0 1 legal: proof: a4 c5 f4 f5 e4 fxe4 d4 b5 axb5 cxd4 Bd3 g6 Bf1 Bg7 f5 gxf5 g3 Be5 g4 Bg3+ hxg3 f4 Ke2 h5 c4 a5 b4 d5 g5 Kd7 b6 Kc6 c5 e5 g4 a4 g6 f3+ Kd2 f2 b7 d3 Ke3 a3 g7 a2 Rh3 h4 Nc3 d4+ Kd2 Qe8 Rg3 h3 Bb2 h2 Qc1 h1R Nf3 R1h7 Rh3 Ne7 g8N Be6 Nh6 Ra6 Na4 Nc8 Qc3 Bd5 Nb6 Kb5 Nd7 Rg6 c6 Nb6 c7 Na8 c8R Rhg8 Nf7 e3+ Kc1 e2 Kd2 e1N Rd8 e4 Rh6 Rd6 N3e5 Ng2 Be2 f1Q Bd1 Ne3 Bb3 Rgg6 Qc8 Ka6 b5+ Ka5 b6 Kb5 Rd1 a1N Ba2 Nac2 Ra1 Bc6 Bc1 Nd5 Bb2 Ndc7 Bc1 Nba6 b8B Bd5 b7 Qg1 Ba7 Nb8 Bc5 Qh1 B5a3 Qf1 Bcb2 Qb1 Bc1 Qb3 Bab2 Qa4 Kd1 d2 Ke2 d3+ Kf2 d1N+ Kg3 d2 Kf4 Nc3 Kf5 Nba6 b8B d1N Ba7 Nb8 Bd4 Nb1 Bdc3 Nd4+ Kf4 Nde6+ Kf5 Rg5+ Kf6 Ne3 Bd4 Qg8 Ke7 Rg6 Bdc3 Qd1 Bd4 Bb3 Bdc3 Rd2 Bd4 Bd5 Kd6 Nca6 Qc3 Nf1 Qh3 Ne3 Qh4 Qh8 Qf6 Qg8 Qh8 Na6c7 Nf3 Na3 Bf6 Kb4 N3e5 Kb5 Bb3 Nb1 Ra3 Qe8 Ba2 Nc3 Rb3+
1n2qb2/3bN2B/B1pBq3/Q1R1nb2/1PN1r3/bB1R4/7K/q1R1bkNb b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 h4 g5 Rh2 a5 Rh3 Ra6 Rh1 Rg6 Rh2 g4 Rh1 Rg5 hxg5 fxg3 d4 Kd7 b4 Kd6 e4 h5 b6 f5 b7 h4 e5+ Kd5 g6 Ke4 g7 a4 d5 c3 e6 c2 e7 f4 e8B f3 d6 h3 d7 c6 Bb2 Ke3 Ba3 c1B Rh2 g2 Qd6 g3 Qg6 Nf6 g8B Ng4 Qf6 Ne5 Ba6 Rh4 Bb3 Re4 Bb2 a3 Qf5 a2 Bg6 Qe8 d8R Bd7 Nd2 Qe6 Rb1 a1Q Bh7 Qe8 Bc3 Ba3 Rc1 Qe6 Rh1 h2 Nc4+ Kd3+ Ne2 g1B Kf1 f2 Kg2 Qe8 Bd4 Qa2 Bc5 Qa1 Kh3 g2 Bd6 f1B Rc2 Bf2 Ng1 Be1 Rc1 Ng4 Qa5 Be2 Nb6+ Kd2 Nd5 Bd3 Rc5 Qae5 Ne7 Qe6 Nf3+ Ke2 Rg1 Bf2 Rgc1 Be1 Ng1+ Kf1 R5c2 h1B Rc5 Ne5+ Kh2 Bb2 Bac4 Na6 b8N Ba3 Bb5 Bc8 Nd7 Nb8 Nb6 Bd7 Bc7 Re2 Nc4 Bf5 Ba6 Re4 Ne2 Rg4 Bd6 g1Q+ Kh3 Qd4 Ng1 Re4+ Kh2 Qa1 Bc7 Bc8 Rd3 Bd7 Bd6
1q3q1r/1b1q4/pBk2P1q/3b1q1N/R3N3/qB1N1BQN/b3Rn2/5KRr b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 f4 f5 g3 fxe4 f5 bxa4 Bg2 g5 Bh3 Nc6 Bf1 Bh6 h3 Ne5 h4 g4 Bd3 Bg5 hxg5 Ng6 Bf1 Nf4 gxf4 Kf8 Kd2 Kf7 Ke1 Ke8 c4 d5 b4 Kd7 g6 h5 c5 e5 f6 e3 f7 a6 f8R e4 g7 g3 b5 h4 b6 a3 f5 a2 f6 g2 b7 e2 Bf4 h3 Nc3 h2 Bc1 d3 Qd2 d4 Ba3 Kc6 Qc2 d2+ Kf2 d1Q Na4 d3 Qb2 d2 Qe5 Nh6 g8B Qd5 Qf4 Qf5 Nc3 Qc1 Bf7 d1B Re8 Bb3 Nd5 Rh7 Nh3 e3+ Kf3 e1Q Rg1 h1B Be2 Qd7 Qg3 Qa5 Ndf4 Ng4 Nh5 Nf2 Bb2 Qac7 Bd4 Qb8 Bd1 Qb1 Ke2 Qbf5 Ke1 Bd5 Bf3 e2 Be3 Qbf4 Re4 Qh6 Ra4 Rh8 Rc1 a1Q b8N+ Kb5 c6 Ba2 c7 Bb7 c8N Qf8 Rf1 g1Q Bb6 Qh2 Nc6 Qb2 Nb4 Qa3 Rg1 Rh6 Qh4 Qb8 Nd3 Bbd5 Ra1 Kc6 Nd6 Rh8 Ne4 Ra7 Be3 Rb7 Qg3 Rb1+ Kd2 Rf1 Bb6 Rc1 Rb1 Rf1 Rb2 e1Q+ Kc2 Qa1 Kd2 Qc1+ Ke2 Qch6 Rd2 Kb5 Be6 Bb7 Bb3 Rc1 Rdd1 Kc6 Rde1 Rd1 Kf1 Rc1 Bfd1 Bf3 Re2 Rb1 Nec5 Bd5 Ne4 Qfd8 Kg2 Qfg6 Re3 Qbc7 Rge1 Qcb8 Bf3 Qgf5 R3e2 Qdf8 Kg1 Rb2 Ra1 Rb1+ Kg2 Rh1 Rg1 Qac5 Kf1 Qcd6 Qg6 Qa3 Qg3
1q4q1/NQNNK3/1q6/1q1R2r1/1p1r2Rn/1RP1knRn/1B3B2/1b1qBn2 b - - 0 1 illegal: No possible last move, all moves rejected
b1b1n3/2bB3r/1qNb1bK1/1bR2R2/3QPR1p/1Br2r2/NBk3N1/2r1R3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 c4 h5 b6 a5 b7 d5+ Ke5 f5 b8N d3 e3 h4 b3 g2 g6 a4 g7 a3 c5 d2 c6 g3 c7 a2 Qh5 d1B Qe8 d4 Nc3 f4 Na4 d3 Qd7 f3 Kf5 d2 Nc3 f2 Nge2 g1R Bb2 g2 Nf4 Be2 Kg6 Rh7 Re1 Nf6 g8B d1B Qd4+ Bc4 Bd3 a1B Bf5 f1R Bd7 Bd6 e4 Be2 Rh3 Ra3 Rf3 Ne8 Bf7 Rh1 Bd5 g1B Ng2 Bd3 Rf4 Rf3 Bf7 Bh2 Na2+ Ka5 Rf5+ Bd5 Nc6+ Kb5 b4 Ka4 b5+ Kb3 b6 Bb5 b7 Kc2 b8R Rac3 Ra8 Bhf4 Ra5 Bfe5 Rf4 Bf6 Nb8 Ba8 Nc6 Rhf1 Re3 Rc1 Re1 Bcb7 c8R Qb6 Rc7 Bc8 Bc4 Bba6 Raf5 Bb5 Na7 Bd8 Rcc5 B8c7 Nc6 Rb3 Ba3 Bc3 Bb2 Ra3 Qg1 Bf6 Qd4 Rac3 Bb3+
3N1bRB/3Rn1n1/PB2bb1K/2R1r1n1/2R2r2/1B1p1NN1/Q2rb1b1/2k2n2 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 a5 b4 axb4 d4 cxd4 h5 g5 hxg6 f4 g5 Qa5 f3 Qf5 exf5 Ra3 Bh3 Rxf3 Bg2 Ra3 Bf1 Ra8 Kd2 d5 a4 Kd7 c4 Kd6 a5 Ke5 f6 Ke4 a6 b5 g7 e5 c5 h5 c6 f3 c7 b3 g6 d3 f7 f2 Ba3 b4 Nf3 b2 Bh3 f1N+ Ke1 Ke3 Nd4 h4 Qg4 b3 Nc6 d4 Qh5 d2+ Kd1 e4 Qd5 Nd7 Ne7 Ndf6 Bg2 h3 Bc5 h2 Ra4 Be6 c8R Nh5 Nc6 Ne7 g8R Ng7 Bb6 Rh5 Rc4 Re5 Nd8 Ra7 Rg1 h1B R8c5 Rd7 Bh3 Bg2 Bf5 Kd3 Rh1 Rd6 Rh7 Rd7 Qc6 Rdd5 Qa4 Ke3 Qa2 Kd3 Na3 b1N Nc2 b2 Ne1+ Ke3 Kc2 Nc3 Nf3 d1R Nd2 Ke2 Nf3 e3 Be4 Rd3 Bf5 b1B+ Kc1+ Rd2 Bc2 Ne8 g7 d3 Rgh8 Rf5 g8N Rf4 Nf6 Re5 Nh5 Ne4 Rg8 Ng5 Rhg7 Bg4 Rh7 Ng7 Ng3+ Kf2 Qa5 e2 Qa2 Nh5 Rhg7 Ke3 Rh7 e1B Rhg7 Be6 Rh7 Bg7 f8B Bf6 Bg7 Bf2 Bh8 Ng7 Ba4 Bc2 Bb3 Bd1 Bc2 Ne8 Rhg7 Be2 Rf7 Nd5 Rd7 Ng7 Nb7 Rd1+ Kb2 Ne4 Nd8 Rg4 Kb3 Be1 Kb2 Bb4 Ra5+ Kf4 Rb5 Bf8 Rbc5 Ke3 Kb3 Ne7 Kb4 Rf4 Kb5 Nc8 Kc6 Ne7+ Kc7 Ng5 Kd6 Beh3 Ra7 Ngf5+ Kd7 Bg4 Ke8 B4h3 Rd7 Bg4 Ng1 Kd2 Nf3+ Kc1 Bg7 Ne6 Kf7 Rd2 Bh8 B4h3 Ng1 Nfg7 Nf3 Nef5 Kg6 Ne7+ Kh7 Ng5+ Kh6 Be6 Bb3+
B6r/1bP3b1/R2n1k1N/1p1R3N/R1n1r2n/1b1nb1R1/4br2/K1QBNB2 b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 f6 exf6 axb4 g4 Nh6 h4 Ng8 h5 Kf7 f5 Ke8 Bf4 gxf4 g5 Qb6 Ke2 Qe6+ Kd2 Qf7 Ke1 Qg6 hxg6 Ra3 Qd3 Ra4 Qd1 Ra8 Kd2 h5 Kc1 e5 Kb2 d5 c4 b5 a4 d3 g7 Kf7 c5 d2 a5 d4 a6 h4 c6 d3 c7 f3 a7 h3 Bg2 e4 Nc3 e3 Rh2 e2 Ra5 e1B Ka2 b3+ Ka1 f2 Be4 f1R Bc6 Rf2 Rg2 h2 Rg3 h1N Qc1 d1B Ra6 d2 Nd5 Nh6 g8N Be2 Nf4 d1B Nf3 Bd2 Ne1 Nd7 Bg2 Bg7 Bf1 Nf8 Ra4 Rb8 a8B Ng6 Ra6 Nh4 g6+ Kf8 Ra4 Nf7 Nh6 Be3 Ra6 Bb7 Ra4 Ne5 f7 Ke7 f8R Re8 Rf6 Bc2 Rfa6 b2+ Ka2 b1N Ka1 Na3 f6+ Kd7 f7 Ke7 f8R Nac4 Rff6 Bb3 Rf5 Nd6 Rfg5 Kf6 Rh5 Nc4 Rd5 Bf8 g7 Re4 g8B Bg7 Bf7 Rg2 Be6 Nf2 Bg4 Nd3 Bf3 Rf2 Bh5 Nb4 Bg4 Bd3 Bd1 Be2 Rgg5 Nd3 Rg1 Nf5 Rg3 Nh4 Nh5+
6nb/2Brn2R/3kBr2/1r1n4/2Rrnrbp/2BN2RR/1PN1r1Q1/3K1N2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Bg2 g4 Bf1 Qg5 hxg5 fxg3 c4 Ke7 e4 a5 g6 f5 g7 h5 b6 d5 e5 f4 c5 a4 b7 g2 c6 a3 c7 d3 e6 a2 Rh4 g3 Rh1 f3 Rh3 d4 Bf4 f2+ Kd2 h4 Qc2 Rh5 Nf3 g1R Rh1 g2 Kd1 d2 Qa4 Ra7 Ne5 Nc6 b8B Kd6 e7 Bg4+ Kc2 d1R Bc4 f1R Bd2 Rf6 Na3 Rge1 Rh3 g1N Be6 Re2 Nd3 Nf3 c8R+ Rc7 e8R Ng5 Qa8 Ne4 Re7 Rb5 Rb1 a1R Rg3 Nh6 g8N Bg7 Qb7 Rf4 Nf6 Ng8 Nd5 Bh8 Ne3 Ra2 Rh7 Nce7+ Nc5 Rdf1 Rd1 R1f3 Rh1 d3+ Kd1 Rf6 Bb4 d2 Rhh3 R3f4 Nac2 Ra4 Bc3 Rab4 Nd3 Rd4 Ba7 Rd7 Rc4 Ng5 Qg2 Ne4 Na3 Bg7 Nf1 Bh8 Kc2 d1N+ Kc1 Nc8 Nc2 Ne3 Bb6 Nd5 Kd1 Nce7 Bc7+
N2r3n/K3bBR1/RQ6/N2rnR1k/3B2bN/bp1r4/Pr1nNB2/n4b2 b - - 0 1 illegal: No possible last move
KNb2q2/1R1N2B1/B3Bb2/r5NB/3pR1q1/p1Qnnn2/1P6/qRrr2k1 b - - 0 1 legal: proof: h4 c5 e4 g5 d4 cxd4 f4 gxh4 a4 b5 axb5 f5 exf5 e5 Ra4 exf4 Ra6 Ne7 Ra1 Ng8 Kf2 Kf7 Kf3 Kf6 Ke4 Kg5 Kd5 h5 c4 a5 g4 a4 f6 d3 b6 a3 c5 d2 c6 h3 b7 Kh4 c7 Kg3 f7 Kf2 g5 f3 g6 h2 g7 h4 Bc4 h3 Ba2 Qh4 Qb3 d1R+ Nd2 Be7 f8R Nc6 b8N Ne5 Rf7 Nh6 g8B Nf5 Qc3 Bf6 Rb1 Ne3+ Kc5 d5 Kb6 d4 Nc4 Nd3 Ne5 Qg4 Be6 Ra5 Ned7 Kf1 Kc6 f2 Nf3+ Kg2 Kb6 f1N Ng5 Nd2 Re1 h1Q Re7 h2 Bgf7 Kf2 Bh5 Qhf3 Rg7 h1Q Rh7 Nf5 Re4 Ne3 Rg7 Kg1 Rf7 Ba6 Ka7 Rc8 Ka8 Qff5 Re7 Nf3 Rg7 Qc5 Rf7 Qf8 Rh7 Rd8 c8B Re8 Bb7 Rc8 Rf7 Nf1 Bf4 Ne3 Be5 Rc6 Qb4 Rcc1 Qc3 Bd8 Bg7 Be7 Bc4 Bf6 Bbd5 Bc8+ Ba6 Qhg2 Be6 Qc2 Ra1 Qb1 Re7 Qa2 Rb1 Qa1 Nc5 Nh4 Rb7 Nf3 Ncd7
1BR4q/8/2K1Bnrp/1P1Rbr2/R1n3BN/1p4Nn/QN1kbRqq/7b b - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 g5 e4 f5 h4 gxh4 a4 bxa4 Qb3 axb3 exf5 Qd6 Ne2 Qd7 Ng1 Qd8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 Kf4 g4 a5 d4+ Ke4 f4 e5+ d6 h6 g5 h3 d5 h2 f6 a4 f7 a3 g6 a2 g7 Bg4 b5 Ra6 f5 Qg5 f6 Nc6 Nd2+ Ke3 Ne2 e4 Bh3 Na5 Nc4+ Kd3 Rf1 h1B Bf4 e3 Rfc1 Bh5 Be5 Qg2 Ng3 Qh2 Rc2 e2 Bf4 B5f3 Bg4 e1Q Rcc1 Be7 f8R Qee2 f7 Bf6 d7 Qeg2 d8R Be2 d6 Bb2 d7 Rg6 Ra8 c6 Kb6 c5+ Bd6 Bf6 d8Q Bd4 Rc8 Bf6 Rab1 a1Q Bb8+ Qd4 Qe7 Qc3 Nb2+ Kd2 Ra1 c4 Ra4 Qd4+ Kc7 c3 Qd6 c2 Qa3 Qe5+ Kb6 Qe8 Qa2 Be5+ Rc6 Qc8 Rf1 c1N Rf2 Nc4+ Kc5 Nf6 g8B Ne4+ Kd5 Nd3 Rc5 Qf5 Rfc8 Qf6 Bd6 Nf4+ Kc6 Nh3 f8N Rg5 Bd5 Rf5 Be6 Rg8 Bb8 Qh8 Ng6 Rg7 Nh4 Rg6 Rf1 Nf6+ Rf3 Ne4 Rf2 Nf6+ Rd5+
nn5n/1Q1Pbn2/3B4/1qpR2kN/1nN5/r1BpqN1R/2RN1B2/1rb3K1 b - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 gxh4 c4 dxc4 d5 e6 e4 Bg7 d6 Be5 Be2 Ba6 Bf3 Bg7 e5 Bf8 Bd5 exd5 f3 Bc8 Bd2 Bf5 Bc1 Be4 fxe4 Qd7 Bd2 Qc8 Bc1 Qd8 Kf1 a5 b4 c5 g4 h5 e6 f5 e5 a4 g5 f4 d7+ Ke7 b6 d4 b7 d3 g6 h3 g7 h2 b5 a3 b6 a2 Kg2 c3 Qe1 f3+ Kf2 h4 Ne2 h3 Ng3 c2 Bd2 c1B Bb4 Ra3 Qe4 Qe8 Bc3 Nh6 g8R Nf7 Nd2 Rh7 Qd5 Nh8 Rg5 Rh5 Rb1 a1N Rb2 Nc2 Qb3 Rh4 Nh5 Nb4 Rc2 Rc4 Kf1 f2 Qb1 Qf7 Qb3 Qf4 Rf5 Qe3 Qb1 N8c6 b8B Rh4 Bc7 Nb8 b7 Rd4 Rg5 Rd6 Qb3 Rda6 Qb2 Ra1 Qb3 R6a3 Ba5 Rb1 Bd4 N4a6 Bac3 Nc7 Rf5 Na8 Qd5 Bg7 Rg5 Bf6 Qg2 Kf8 e7+ Kf7 e8N Be7 Nef6 Ke6 Rf5 Kf7 Qc6 Kg6 e6 Kh6 Ng4+ Kg6 Rg1 h1Q Rd5 h2 Ne5+ Kf5 Qc8 Qhe4 Rg4 h1N Rh4 Kg5 Rh3 Qh4 Kg2 f1N Qc7 Nf2 Kg1 Bf6 e7 Ng4+ Kg2 Nh6 e8N Qhe1 Nd6 N6f7 N6c4 Be7 Kh1 Q1f2 Qc8 Qf6 Qc7 Qb6 Kg2 Qf3+ Kg1 Qb5 Bf2 Qe3 Qc8 Ng3 Qc6 Nf5 Qc7 Nd4 Qc8 Na6 b8B Nb4 Bd6 Ndc6 Qb7 Nb8 Nef3+
bB1Rk3/Nq6/1Q2PqRN/rbB3NK/p1b2R1b/5nBp/7n/Nr4r1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 c6 e3 Nd7 b6 Bg7 b7 Bf8 b5 Nb8 b6 Nd7 Bc4 Nb8 Bb5 cxb5 Ke2 f5 Kf3 a5 g4 h5 d4 a4 g5 h3 g6 h2 g7 b4 d6 h4 e4 h3 e5 b3 d7+ Ke7 e6 b2 d5 Nf6 Qd4 Ng4 Na3 b1R Be3 Ra5 Nc2 Nc6 b8B Rg8 b7 Qc7 d8B+ Ke8 d6 Bd7 Qb6 Be7 Bc5 Bh4 Ra3 Qc8 Na1 Qc7 Rb3 Qc8 Rb4 Nce5+ Ke2 Nf3 Bdc7 Bb5+ Rc4 Rf8 g8N Rf6 Nh6 Rg6 Ba7 Rg5 b8N Qb7 Nc6 Rg6 Bab8 Rg8 Na7 Rg7 Kd3 Rg5 Ne2 Rg8 Rc1 h1B Ng3 Ngh2 Ne4 Rg1 Ke2 Ne1 Ng5 f3+ Ke3 f2 Kf4 Nef3 R1c2 f1Q Rg2 Qf2 Ne4 Qb2 Rg6 Qf6 Ng5 Ne5 Ke3 f4+ Ke2 f3+ Ke3 Qg7 Kf4 f2 Kf5 f1B Rf4 Qd7 Kf6 Qe7+ Kf5 Nef3 d7+ Kf8 Be5 Bfc4 d8R+ Be8 Rd5 Beb5 Rd1 Ke8 Rd7 Bg2 Bed6 Nf1 Kg4 Qf6 Kh5 N1h2 Rg4 Qa8 Nh7 Nd4 Ng5 Bgc6 Bg3 Ndf3 Rf4 Be4 Bc7 Qc8 Bb8 Ba8 Rd5 Qb7 Rd8+
6N1/4R1n1/KB2p2B/p2Qr3/1r6/nB1RqPqn/1N4Rb/NkBbnr2 b - - 0 1 legal: proof: b4 b5 e4 d5 h4 f5 a4 fxe4 c4 g5 cxd5 gxh4 axb5 c5 Qc2 cxb4 Qb3 Bd7 Qd1 Bc8 Ke2 Kd7 d4 Kd6 g4 a5 b6 h5 g5 e3 Kd3 e2 Kc4 e1N Kb5 h3 b7 h4 g6 h2 g7 b3 Bh3 b2 Ra3 Nc6 b8N Bg4 Ra2 Nf6 g8R Qc7 Ra3 Nd8 Rd3 Rh5 Nd7 Ne4 Nf6 Rb8+ Ka6 Ng5 Ne2 Rb4 Nd2 b1N Nb3 Nde6 Na1 Na3 Nc3 Ng7 Na4 e6 Nb2 Qb8 Bf1 h3 Qb3 Bd1 f3 Be7 Rg1 h1R Rg2 h2 Re8 Qc7 Ng8 Nh3 Be2 Bg5 Re7 Rf1 Qc4 h1Q Qa2 Bb3 Bd1 Bf4 Bc2 Ba4 Bb3 Bh2 Bh6 Qg1 Bc1 Qd7 Bh6 Re5 Bc1 Kc7 d6+ Kc6 d5+ Kc5 Bh6 Qe8 d7 Qg6 d8B Qg3 d6 Qd4 d7 Qe3 Bc4 Bd1 Bb3 Rh4 Bb6+ Kb4 d8B Rc4 Rd4 Kc3 Bdc7 Rb4 Bd6 Rf5 Bdf4 Rc5 Ba4 Re5 Qd5 Qg1 Bc1 Q1f2 Nb3 Kc2 Na1+ Kb1 Rd3 Qe3 Bb3
R7/1Bn1qp1b/2rNrrr1/4RN2/1R1Q1B2/1b3n2/p1P1Nk1b/R2Bb2K b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 e3 b5 axb5 g5 hxg5 dxe3 b4 Ke7 g4 Ke6 g6 Ke5 g7 Ke4 b6 a5 b7 d5 b5 h5 b6 h4 g5 a4 g6 h3 Qe2 a3 Qg2+ f3 Qe2 h2 Bg2 d4 Kf1 d3 Qd1 d2 Bb2 a2 Be5 e2+ Kf2 e1B+ Kf1 Ke3 Na3 f2 Qg4 d1R Ne2 Bf5 Bf3 Nf6 Kg2 f1R g8N Ra6 g7 Nfd7 Ne7 Rd6 g8B Rc6 Bh7 Rg8 Nb5 Rgg6 Nd6 Be4 Rg1 h1B+ Kh2 Qe8 Bf4+ Kf2 Nef5 Qe7 Rg3 Bh6 Rh3 Bd3 Rh5 Ne5 Rg5 Re6 Bg6 Bc4 Bh5 Bb3 Bd5 Bf3 Be4 Rg1 Bd5 Rg2+ Kh1 Be4 Qh4+ Rg3+ Bf3 Bd3 Bh5 Nf3 Qg4 Nd7 b8R Nf6 b7 Ne8 Ra8 Nc7 b8R Bg7 Rb4 Be5 Nh4 Bh7 Nhf5 Rc3 Bb7 Rcc6 Bc1 Rg2 Qc4 Bh2 Bf4 Rab6 Qd4+ Kf1 Ne3+ Kf2 Re5 Rgg6 Ng1 Nh4 Bd1 Nf3 Ne2 Ref6 Ndc4 Rce6 Nd6 Rc6 Nef5+
R1nn3r/1rB1B1N1/2b1p3/1r2BB2/2R1p1n1/r1r4N/q1qN1QKP/R2k4 b - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 g4 hxg4 Bf4 a5 Bc1 e6 b3 a4 b4 Bd6 Ra3 Bc7 Ra1 Ba5 bxa5 Rh3 Bg2 Rh7 Bf1 Rh8 f4 Ke7 Kf2 Kf6 c4 Kf5 a6 d5 c5 g5 b6 a3 a7 g3+ Kg2 d3 c6 d4 c7 g4 b7 d2 Qe2 d1R Bb2 a2 Na3 d3 Bg7 d2 Qf3 Nc6 b8B Qd3 Be2 Bb7 c8N Rb1 Bd4 d1N Bde5 Nge7 Kf1 g2+ Ke1 g3 Bbc7 Nd8 Nh3 g1R+ Qf1 Rb3 Rc1 a1Q Rc3 g2 Rc4 Ne3+ Kf2 Rc3 Bf3 Rb8 a8R Bc6 Bh5 Qdd1 Bg6+ Kg4 f5 Rb7 Nd6 Nc8 f6 Qb3 f7 Qa4 Qd3 Rgb1 f8B g1R Ne8 Qc2+ Qd2 R1b5 Ng7 Rgb1 Re1 R1b3 Be7 Qaa2 Kg1 Kf3 Bf5 Ng4 Ra1 Bd7 Nb1 Ra3 Qd4 Ke2 Kg2 Bc6 Qf2+ Kd1 Nd2+
n3r3/K1kqrbp1/4N2R/p2B1N1Q/N4R2/1Pqq4/1b1R1rBb/4B1rB b - - 0 1 legal: proof: g4 e5 a4 a5 f4 exf4 d4 c5 g5 cxd4 g6 b5 axb5 Na6 bxa6 hxg6 Nc3 g5 Nb1 g4 Kd2 d5 Kd3 Kd7 c4 f5 h4 g3 e4 g2 c5 f3 b3 f4 h5 f2 a7 f3 h6 Qf6 h7 Qe6 c6+ Kc7 e5 Ne7 Nc3 Qg4 e6 Qg3 Nh3 g1B Bd2 Bh2 Bg2 f1R Nf4 Rg1 Be1 f2+ Qf3 f1R Ra4 Rg8 h8R Rf2 Rh6 Ba6+ Rc4 Nc8 e7 Nb6 e8B Ba3 Bf7 Rae8 a8B Bb2 Na4 Re7 Bb7 Rge8 Ne6+ Kd6 c7 Na8 c8N+ Kd7 Nec5+ Kc7 Nd6 Bb5 Nf5 Bd7 Rc1 Be6 Rd1 Qe5 Bg8 Bf7 Rd2 Qf6 Rh4 Qc6 Qh5 Qf6 Rf4 Qe5 Kc2 d3+ Kb1 Qf6 Ka2 Qc3 Bc6 d4 Bb7 Bg6 B8d5 Bf7 Ne6+ Kb8 Rc2 d2 Bbc6 d1Q Rd2 d3 Bb7 Ba1 Ka3 Qf3 Nb6 Qe3 Ka4 Bb2 Kb5 Qh3 Ka6 Qe3 Ng5 Kc7 Ka7 Qe6 Na4 Qd7 Rc2 d2 Bbc6 d1Q Rd2 Bg3 Rhh4 Bh2 Bh1 Qdc2 Bdg2 Nb6 Bcd5 Q2d3 Ne6+ Kc8+ Nc7 Qcc4 Qg5 Qcc3 Rh6 Na8 Qh4 Qdc6 Qg4 Kd7 Ne6 Qd6 Nd8 Kc7 Qh5 Qd7 Ne6+
1bN1bn1N/nb3bNR/4q3/rp6/kN5p/BRB1RPQ1/4B1n1/1K3nn1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 f5 cxd5 fxe4 Na3 axb4 a5 b5 Nb1 Ra6 Na3 Be6 Nb1 Rb6 axb6 Bc8 d4 Kd7 Kd2 e5 Kc2 c5 g4 h5 g5 b3+ Kb2 h3 d6 Kc6 d7 h2 g6 c4 g7 e3 b7 e4 d5+ Kc5 d6 Kb4 Ra6 e2 Qd3 e1N Ra1 h4 Qe3 Nf3 Nh3 Ng1 Qf4 e3 Nc3 e2 Na4 e1N Qg4 Qb6 d8N Nd7 b8B Ne7 g8R Ng2 Rg7 Bb7 Rh7 Nc8 Ne6 Na7 Kb1 b2 Qg3 c3 Nhf4 Qe3 Ng7 Qe6 Bd3 Be7 Bf1 Nf8 d7 Bd6 d8N Ka5 Nd5 c2+ Ka2 Bc7 Nf7 b1B+ Kb2 Ba2 Rb1 Bc6 Nb4 Be8 Be2 Bc4 Bd2 c1N Nb6 Nb3 Bc3 Nd2 Nc8 Ka4 Re1 Nf1 Kb1 Be5 Bd6 Rg8 Bc5 Bb8 Nh8 Bd5 Be3 Bb7 Bc1 Bf7 B1b2 Bc6 Ba3 Bce8 Nf5 Rg4 Ng7 Rd4 Bg4 Rd6 Re3 Ra6 Be2 Ra5 Na2 Nf3 Rg1 h1B Nb4 N1h2 Rd1 Ng1 Rd2 Nf1 Rb2 Ne1 Rb3 Bb7 f3 Ng2 Ka1 Bec6 Kb2 Bce8 Kb1
Bq2bNr1/B3KQr1/r2PNpb1/R4q1r/1b2RR2/1r3Rp1/3qBk2/1N6 b - - 0 1 illegal: No possible last move, all moves rejected
B1B3Nr/np6/3P1N2/q4R2/2NRqR1q/p1BB1n1n/n3q1b1/K1Q1q2k b - - 0 1 illegal: No proof kernel
1Q6/4Nb1b/qb2nb1b/1B4B1/1n1Nn1N1/bP1p3p/1q3Nk1/2BRKRR1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Bd2 d5 Bc1 d4 h3 h5 Qd3 g5 Qd1 a5 Rh2 Ra6 Rh1 Rf6 h4 Rf5 gxf5 g4 Bg2 Rh6 Bh3 Rg6 Bf1 Rg5 hxg5 Qb6 Kd2 Qf6 Ke1 Qd8 e4 Ke7 c4 Kd6 g6 Ke5 f6 d5 f7 d3 g7 a3 c5 a4 b3 g3 c6 g2 c7 f2+ Kd2 f3 Ne2 g1B Nec3 Kf4 e5 Kg3 e6 a2 e7 h4 e8N h3 Na3 d4 Nd5 Nh6 g8N Na6 Bb2 Nb4 Nb6 Bf5 c8R Bh7 Qb1 Qf6 Qe1 Nf5 Nb5 a3 Rh2 Ng7 Kd1 d2 Nd5 Ne6 Rc7 Bh6 f8B Qe5 Rac1 a1B Rh1 a2 Ne3 Qg7 Ba3 Bb2 Rf7 a1B Ng4 Qh8 Be2 Kg2 Ne7 f1B Ned6 f2 Ne4 Qg7 Bc4 Bd3 Rf3 f1Q Nef2 Bdg6 Rf6 Qd3 Qe5 Bf7 Qb8 Qdg6 Ke2 d1N Ke1 d3 Nd4 Nc3 Rd1 Ne4 Bb5 Qh8 Rf5 Qgf6 Bg7 Qc8 Rg5 Qa6 Rg6 Qe5 Bf6 Qh2 Bg5 Bc1 Ne2 Bf6 Nd4 Qe5 Ne2 Qb2 Nd4 Bh2 Rg7 Bc7 Rf1 Bb6 Rg8 Nc6 Bd6 Nb4 Bdf4 Qb1 Rg6 Ba3 Bc1 Qb2 Bgd2 Bhg7 Ne5+ Kh2 Rgg1 Bf8 Bg5 Bh6 Rh1+ Kg3 Neg4+ Kg2 Rhg1#
B1K2RNr/2br3r/1pp4P/N1R2NN1/2n5/1n1q3q/2Qpk1BR/4q1Bb b - - 0 1 legal: proof: c4 h5 g4 f5 gxh5 f4 b4 a6 b5 axb5 e3 bxc4 exf4 c3 f5 cxd2+ Ke2 Rh7 Ba3 Rh6 Bc1 Rh8 Ke3 Kf7 Kd4 Kf6 Kd5 Kg5 f4+ Kh4 a4 e5 f6 g5 a5 g4 h6 b6 a6 d6 h7 g3 f5 g2 a7 e4 f7 e3 f6 e2 Nf3+ Kg4 h4 e1Q h5 g1Q h6 Na6 Kc6 d5 Na3 d4 Bg2 d3 Nc4 Bd6 f8N Qh2 f7 Qh3 Qc2 d1R Nd7 Nc5 f8R Nb3 Ng5 Nf6 Rh2 Ne4 Ra5 Ned2 Rc5 Ba6 Na5 Nc4 Be3 Bb7+ Kb5 Be4 Ka6 c6 Kb7 Bc7 Bg1 Rc8 a8B Rb8+ Ka6 Rb7 Nf6+ Kg3 Ng8 Qd5 Bf1 Bh1 Bg2 Rd2 Nf7 Qdd7 Nd6 Kg4 Nf5 Kf4 Bf1 Kf3 Bg2+ Ke2 Nge7 Rb8 Ng8 Re8 Ka7 Re7 Kb7 Qd5 Kc8 Rd7 Qc1 Ra2 Qb2+ d2 Qc2 Qdd3 Nf6 Rg8 h8N Rh7 Nf7 Rgh8 Ng5 Ra1 Nb7 Ra7 Ng8 Bg3 Na5 Rad7 Nf3 Bc7 Ng5
Q2r4/B4P1q/3bRbB1/1n2BRbp/3R1qNp/pn4k1/Nr1NK3/1n5R b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 h4 gxh4 b3 a5 b6 a4 Nd2 a3 Nb1 Ba6 Qg4 Bb5 Qd1 Ba4 bxa4 Qc8 Kd2 Qc7 Ke1 Qd8 g4 Kf7 f4 Kg6 c4 e5 g5 Kf5 b7 d5 g6 h5 a5 d3 g7 d2+ Kf2 e3+ Kf3 d4 a6 e2 a7 e1B c5 d3 c6 e4+ Ke3 Nh6 g8N Qf6 c7 Bd6 c8R Nf7 Rc7 Nc6 b8B Nd4 Ne2 Kg4 f5 Nb3 Nec3+ Kg3 Nh6 Rd8 Ng4 Qg7 f6 Qh7 Qe2 d1Q Rc4 d2 Bb2 Qc1 Qd1 Bf2+ Ke2 Be3 Na2 Bg5 Rd4 e3 Bg2 Qc7 Be4 Qc1 Qc2 d1N Qc8 Qc7 Bg6 Nc3+ Ke1 e2 Nd2 Nb1 Rf1 Qc6 Rf5 Qf3 Qa6 Qf4 Qa4 Ne5 f7 Nc4 Qe8 Bde7 Be5 Rab8 a8R Nd6 Ra6 Nb5 Re6 Bd6 Qc6 Rbc8 Qa8 Rc2 Re4 Bf6 Bbd4 Rb2 Ba7 Kg2 Nf3 Kh3 Kf2 e1B+ Kf1 Bd2 Ke2 Kg3 Rd4 B2b4+ Nd2 Bde7 Qb7 Bbd6 Qb8 Bg5 Qa8 Bef6 Kd3 N1c3 Rh1 Nb1 Ke2
bK3N1r/7B/1bR2B1R/pp1bR1N1/nP1N2kQ/B4p2/4r2R/nr1r2q1 b - - 0 1 legal: proof: f4 b5 g4 e5 c4 exf4 a4 d5 cxd5 h5 a5 Bb7 a6 Bxa6 gxh5 Bb7 Qc2 Bc8 Qh7 Nh6 Qg8 Nxg8 Kf2 Kd7 Kf3 c5 Ke4 a5 Ke5 g5 h4 f5 e4 c4 d4 g4 b4 c3 d6 f3 h6 g3 h5 c2 d5 f2 h7 f4 h6 f3 Rh2 g2 Nd2 Qb6 Nh3 g1R Bd3 f1B Nb3 Rg7 Nd4 Be2 Ba3 c1R Ng5 Rg1 Rc1 Rd1 Rc6 Bb7 Bb1 Bc4 Bc2 Kd8 d7 Ke7 d8N Nf6 N8e6 Na6 d6+ Kd7 Bd3 Re8 Bb1 Ba8 Bc2 Rhg8 h8Q Nd5 h7 Nc5 Bb1 Nb3 Rh6 Be7 Nf8+ Kd8 d7 Nc3 Bc2 Na1 Bd3 Bf6+ Kd6 Na4 e5 Bd5 e6 Rge7 Rh2 Bg7 Bb1 Bh6 Qf6 Rh8 Bc2 Rb1 Qf4 Rf7 Qh4 Rf4 Bf5 Rg4 Bd3 Rgg1 Bf5 Rgd1 Be4 Rg8 h8R Bg7 Rh6 Rh8 Bh7 Bf6 Ne2 Qg1 Nd4 Nb2 Kc5 Ke7 Kb6 Na4+ Ka7 Be5 Bd3 Bc7 Bh7 Bd8 Kb8 Bb6+ Rc8 Kd6 d8B Ke5 Rc1 Re7 Rc6 Rc7 e7 Ra7 e8R+ Re7 Qf2 Kf4 Qe1 Re3 Re5 Kg4 Bf6 Re2 Qh4#
N1B1q1n1/1nb1NppK/1r4n1/B2p4/4R1N1/3Rn1rk/b1P2Q2/3RBqN1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 c5 a3 cxd4 a4 b5 axb5 axb4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 h4+ Kg4 h6 d5+ Ke5 d3 e4+ f3 b6 b3 h5 b2 b7 d2 h7 Qa5 h6 Kg3 Ra3 Ra7 Qe2 d1Q Rd3 Qa4 Nc3 b1N Bd2 Bf5 Be1+ Kg4 Qf2 Nf6 Bh3+ Kg5 Nb5 Nc3 Nc7 Ne2 Na8 Bg6 Bc8 Na6 b8B Ng8 Bc7 Nf4 Bca5 Nc5 Rh4 Re7+ Kd6 Qe8 e5 Bh5 e6 Rb7+ e7 Ng6 Re4 Rb6+ Kc7 Qe2 Rd1 Qf1 Rd3 Qa4 e8N Nb7 Nf6 Qe8 Rd1 Bg4 Rd3 Bd7 Ng4 Bb5 Rd1 Bc4 Rd3 Qe5+ Kd7 Ba2 Rd1 Qb8 Ke8 Bd6 Rd3 Bc7 Rd1 Ne5 Kf8 Kh5 Red4 Kg5 R4d3 Ng6+ Ke8 Bh2 Ne3 Qg3 Bh3 Kh4 Bc8 Qg2 Qf1 N8e7+ Kd7 Re8 h8R f2 h7 Qe5 Rf8 Nf4 h8N Bg3 Qe2 f1N Qf2 Qee4 Ng4 Qe5 Ne2 Kh3 Ng6 Qg1 Nh4 Qe3 Nf5 Nfg6 Rg8 Bc7 Rf8 Nc6 Rg8 Re5 Re8 Qg2 Re6 Nce7 Ke8 Re4 Re5 Rf4 Re6 Rf3 Re5 Rg3 Re6 Nh4 Kf8 Qee4 Re5 Ne3 Re6 Qa4 Re5 Qf1 Re4 Nc6 Kg8 Ne7+ Kh7 Ng8 Ne7 Ng6 Rf4 Qd7 Re4 Qe8 Ng1+
r3n1bQ/Rp3R2/2pb2bB/P2p2qR/5bB1/2r3Bn/qN6/3KNBNk b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c6 b4 axb4 c4 Rh7 c5 Rh6 d4 Rh7 d5 Rh8 Qc2 cxd5 c6 Na6 c7 Nb8 Qc6 dxc6 a4 Kf7 f4 Kf6 h4 e5 a5 g5 h6 g4 h5 b3 h7 b2 h6 e4 Ne2 g3 Nd2 b1B Ng1 g2 Ra3 e3 Kd1 Be6 c8B Nd7 Rh5 Ne5 Nc4 Nf3 Nb2 Bd6 Rb3 Qe8 Rb6 Ng5 Ra6 Nh3 Ra7 Qg6 Bd2 Qg5 Be1 Bd3 Bg3 e2+ Kc1 e1B Kd1 Bd2 Bd7 Kf7 f6 Kg6 f7 Kf5 f8R+ Kg4 f5 B2f4 f6 Bg6 f7 Nf6 Bc8 Rg8 h8N Ne8 h7 Rg7 Nf3 g1Q Ne1 Qg2 Bd7 Bgf5 Ng6 Qf2 Nh4 Bg6 h8Q Qg2 Na4 Qa2 Nhf3 Rg8 Nb2 Rg7 Bf2 Rg8 Ng1 Rg7 Bc5 Kg3 Bf2+ Kh2 Bg3+ Kh1 Bc8 Bef5 Be6 Bh7 Bc8 Bfg6 Bd7 Bg8 Bg4 Nc7 Rb8 Ne8 f8B Re7 Bh6 Re3 Rc8 Ra3 Rc7 Rc3 Rf7
2qq1Bn1/rb3qnB/B5k1/1nNRr1p1/1pNr3Q/2R5/1PK2Np1/3R1R2 b - - 0 1 illegal: No possible last move
1nrRN3/p1k1B3/q3r3/3R1B2/N5Kb/P1qB1pp1/1N1qr2q/2QRn2B b - - 0 1 legal: proof: c4 d5 f4 e5 b3 exf4 b4 c5 bxc5 dxc4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qc8 Rh3 Qc7 Rh1 Qd8 e4 Kd7 Ke2 f5 Kf3 h5 d4 b5 a3 c3 d5 c2 d6 f4 e5 h4 g5 h3 g6 b4 g7 b3 Nc3 b2 Na4 b1Q Kg4 h2 Bd3 Ne7 g8B Rh6 Nh3 g1Q Nf2 Nf5 Bd5 Qb5 e6+ Kc8 e7 Nd4 e8N Be7 c6 Qa6 c7 Bh4 Bg2 f3 Bg5 c1Q Be7 Qc3 Qc1 Nc2 Nd1 Ne1 Ndb2 Re6 d7+ Kb7 c8B+ Kc6 Nd6 Kc7 Rb1 Qf2 Rf1 Qd2 Bh1 Qh8 d8R Re2 Bcf5 Qhh6 Bg2 h1R Ra1 Rh2 Bh1 Re6 Rf2 Qh7 Re2 Rf2 Re5 Re2 Rb5 Bg5 Re5 Qh2 Rd5 Bh4 Rb1 Nd7 Ra1 Rc8 Rb1 Nb8 Ne8+ Kc6 Qc2 Kb7 Rd1 Kc6 Qc1 Kb7 Nf6 Kc7 Ne8+
N1Kb1n1R/Q3P3/n1p4q/p2RR2n/Nk1r2N1/B1nb4/1N1pB3/bb3B2 b - - 0 1 illegal: No possible last move
B4nQB/b1rqP3/1p4RB/bk1N1r2/1pp2N1b/R2NN3/b5K1/rr2R3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 h4 g5 g3 Nc6 Nf3 Nd4 Ng1 Ne6 Kf2 g4 Ke1 Ng5 hxg5 fxg3 a4 Kd7 e4 c5 d4 f5 g6 h5 d6 Kc6 e5 h4 g7 g2 Kf2 c4 d7 h3 a5 f4 e6 h2 d5+ Kb5 a6 f3 a7 Be7 d6 Bg5 Qd5+ Kb6 Na3 Rh7 Nc2 Nf6 Ne2 g1B+ Kg3 f2 g8R Re7 Kg2 g3 Ra3 Bh4 Ne3 Nh7 Nf4 Nf8 Nd3 Rf7 Be2 f1R Rg6 R1f5 Bf3 Qe7 d8N Qd7 Bd2 Bf2 Re1 h1R Bc3 Bg1 Bh8 Bh2 Qd4+ Kb5 Qg7 Re7 Qg8 Rg7 Kh3 g2 Be4 g1B Kg2 Be5 Bd5 Bd4 Be4 Bb6 e7 Ba5 Ne6 Rgf7 Nef4 Rc5 Bf3 Rc7 Bd5 Rf5 Bf3 Rb8 a8N Bgf2 Nb6 Ra8 Nbd5 Ra6 Re2 Rb1 Re1 Bg1 Nf1 Ba7 Nfe3 B5b6 Be4 Ra4 Bf3 Ba5 Be4 b6 Bf3 Qc6 d7 Qe6 d8B Qd7 Rc3 Raa1 Ra3 Rc6 Bc7 Rc5 Bce5 Rc7 Beg7 Bb7 Bh6 Bc6 Nf6 Be4 Nc5 Bc2 Ncd3 Bb3 Ba8 Ba2 N6d5
K3n2n/2R1Nr2/1p2RRpN/4kB1p/nB1qN1q1/np4r1/4Pn1B/3Q3N b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 h3 b6 h4 f4 h5 g6 h6 Bg7 hxg7 Ba6 Nh3 Bd3 Ng1 Bf5 gxf5 Qc7 Kd2 Qc8 Ke1 Qd8 Kf2 Kf7 a4 Kf6 c4 h5 c5 d5 a5 d3 c6 d2 a6 d4 c7 d3 c8N b3 a7 Ke5 f6 Na6 f7 Nh6 g8N Rh7 f8B Rf7 Nc3 Nc7 Nce7 Ne8 Ne4 Rc8 a8R Rc3 R1a7 Qd6 Bh3 Qd4+ Kf1 f2 Kg2 f1N Kf3 Ne3 Bf5 Nc2 Rc7 Na3 Nh3 Nb1 Nhf2 Na3 Qc2 d1N Rf1 Nb2 Nh1 Na4 Qd1 Ng7 Be3 d2 Rd8 Ne8 Rd6 Rc1 Bg1 Rc3+ Kg2 f3+ Kg3 Rh7 Bh2 Nf7 Nh6 Nh8 Rf6 Rf7 Rf2 Qd8 Rf1 f2+ Kg2+ Kd4 Re6 Rh3 Bg3 Qd5 Kf3 Qc4 Kf4 Qc3 Bh2 Rg3 Nc6+ Kd5 Bb4 Qc4 Ne7+ Kd4 Rg1 Qd3 Rg2 f1Q+ Rf2 Qh3 Nc6+ Kc4 Ke5 Qg4 Ne7+ Nc5 Qb1 d1N Rf4 Nf2 Qd1 Ng7 Rf3 Qc3+ Kd6 Qd4+ Kc6 Ne8 Rf4 Na4 Kb7+ Qc5 Qg1 Kd4 Ka8 Qc3 Qd1+ Qd3 Rf6 Ke5 Rf3 Qc4 Rd3 Qc3 Rdd6 Qd4 Rde6+
4rk2/B2prp2/2r1n1P1/1Q1N4/8/Rp1K1Rpr/qNr1rR1B/2NR1B1n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 g5 cxd4 Bd2 e5 Bc1 exf4 h3 b6 Bb2 Bb7 Kd2 Bf3 Ke1 Bg4 Bc1 g6 Nc3 Bh6 gxh6 g5 Nb1 Bf5 Be3 g4 Bd2 g3 Bc1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 Kd2 f3 a4 d3 e4 f2 c4 b3 a5 h4 e5 b5 e6 b4 g5 h3 a6 b2 c5 b3 c6 h2 a7 Ne7 g6 Ng8 h7 Kf8 c7 Kg7 c8N Qa5+ Nc3 b1R e7 Nc6 e8R Nf6 Re2 Nd4 Nb6 Ne6 Nc4 Rhc8 h8B+ Kf8 Nb2 Qa2 Nd5 Ng4 Bd4 Rc6 Re3 Re8 Rf3 Re7 Ne2 Re8 Rg1 h1R a8R Rh3 Ra3 Re7 Ba7 Re8 Bg2 f1R Rf2 Re1 Bf1 Re7 Rf3 Re8 Rg2 Nf2 Ke3 Nh1 Rgf2 d2 Kd3 Re7 Qc2 Re8 Qc4 d1R+ Bd2 Re7 Nc1 Re2 Qb5 Rde1 Bde3 Rec2 Rd2 Re2 Bg1 Rc8 Bh2 Rce8 Nd1 Rbb2 Rb1 Rc4 Ra1 Rbc2 Nb2 Rc6 Rb1 Re1 Rdf2 Re5 Ne2 Re4 Rd1 Re5 Nc1 Re4 Na4 Ree2 Nb2
1N2R3/b3pq2/2n2pN1/5bR1/3p3p/nN4pQ/2qq1nP1/KN1BkBBR b - - 0 1 legal: proof: d4 a5 h4 g5 e4 h5 f4 b5 b4 axb4 d5 g4 f5 Ra5 e5 Rh7 f6 Rg7 fxg7 Ra6 Bc4 Rg6 d6 Rg5 hxg5 cxd6 Ne2 dxe5 Ng1 e4 Bf1 e3 c4 d5 a4 Kd7 a5 Ke6 g6 Kf5 a6 Ke4 c5 f6 a7 e2 Kd2 e1Q+ Kc2 d4 Kb2 h4 a8B+ Qd5 c6 b3 c7 g3 Ra5 b4 Ka1 Nh6 g8N Ng4 g7 Be6 c8N Qd2 Ne2 Ke3 Nh6 Kf2 g8R Bf5 Na7 Qf7 Bf3 Nc6 Qc2 Bg7 Re8 Ke1 Re5 Nf2 Ng4 Bh6 Rc5 Bf4 Ne5 Bg4 Ng6 Bb8 Rg5 Be6 Qc4 Bf5 Qe6 b2+ Ka2 Ne5 Nc6 Ba7 Nb8 Nc6 Bh5 Qd1 Be3 Qd2 Nc1 b3+ Ka3 Qc3 Bd1 Qd2 Nc3 b1Q Qc8 b2 Nb3 Qbd3 Ka2 b1N+ Ka1 Na3 Nb1 Q3c2 Qd7 Nh3 Bg1 Nf2 Qc8 Be4 Qg4 Bf5 Qh3
1b1B3R/bNPb4/NRNr4/1B2qR1B/Q4q2/4r3/kn1rrrnn/2KB3q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 a5 c4 f5 g4 h5 g5 h3 b6 f3 g6 f2 b7 h4 g7 f4 b5 Kc5 b6 Kb4 c5 d5 c6 f3 e5 h2 e6 a4 e7 a3 e8B d3 Qe2 Kb3 Bh3 f1Q Nc3 d4 Nd5 a2 Nb4 f2 Qe1 Nd7 b8R Ne7 g8B+ Nd5 b7 Rh6 Bg6 Qf6 Kd1 d2 Bge6 Bd6 Beg4 Nf4 Bb1 Ra3 Bd3 Qe5 Nd5 Ng2 Bge2 Nf6 Bb2 Bd7 Bh5 Ng4 Rh8 Bb8 c7 Rd6 Rc1 a1B Nf3 Ka2 Bb5 Re3 Nb6 Qc4 Na4 f1R Rf8 Rf2 Rf5 Qb4 Kc2 d1R+ Qe2 Rdd3 Rb1 Rd2+ Kc1 d3 Qd1 Qbf4 Nc5 Rde2 Ba3 Bd4 Qa4 d2+ Kd1 Nf6 B3g4 h3 Kc2 d1N+ Kc1 Rd2 Rb4 Ree2 Rb1 Be3 Nd4 Nb2 Nc6 Bd4 Bf3 Re3 Bd1 Ng4 Rf1 h1R Re1 Rh2 Rh1 Ba7 b8N Rde2 Nba6 Bb8 Nb7 Bda7 Rf1 Rh1 Rf8 h2 Rg8 Red2 Rh8 Rfe2 Rf2 Rf1 Rf3 h1Q Rf2 Qf7 Rf5 Nh2 Bc5+ Ra3 Be3 Rff2 Bg5 Qf8 Be7 Qh6 Bd8 Qhf4 Bd3 Nc4 Rb6 Nb2 Qb4 Rb3 Bb5 Rbe3 Qa4+
1b2nq2/3KR3/3R4/Nr1nR1NN/3b2Qr/1q2qB1n/qq1Nb2P/n1Bk3B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 b4 g5 c4 f3 b6 g3 e4+ Kg4 c5 f5 b5 a4 e5 f4 c6 a3 c7 g2 e6 d3 e7 d2 Kd6 a2 b7 Qe8 b6 Nc6 b8R Rh4 b7 Nf6 Ba6 Nb4 Bd3 Nbd5 Qb3 d1Q Qc2 f2 Nf3 f1Q Ba3 g1N Qf2 Qb3 Qd2 Qb2 Qd1 Qff2 Qe1 Nh3 Qd2 Ra5 Qe3 Rb5 Ne1 f3 Nc2 Qg2 Bf1 f2 Qd4+ Kf3 Bd3 f1Q Be4+ Ke2 Ne1 g4 Nd2 g3 Nef3 Qfg1 Ng5 Qe3 Rad1 a1N Qa4 Qa2 Bc1 Qgf2 Ra8 g2 b8N g1B Nc6 Ba6 c8B Qf7 Ra7 Ne8+ Ke5 Bh6 Na5 Qf8 Bb7 d6+ Ke6 Q2f6+ Kd7 Qfb2 Nh7 Bf4 Ng5 Be5 Ba8 Bf2 Rhg1 Bfg3 Bh1 Bd4 Rdf1 Bge5 Rf5 Bf4 Qb4 Bg3 Rg2+ Kd1 Re5 Ndf4 Nac4 Bb6 Rf5 d5 Nf7 d4 Nb3 d3 Nca5 d2 Kc6 Nf6 e8N Rd5 Ng5 Ke1 Ng7 Ne8 Nh5 Bc4 Rf2 Rb5 Re7 Bd3 Qa4 d1Q Nd2 Qdb3 Kd7 Kd1 Bag2 Nd5 Qg4+ Be2 Be4 Bgc7 Rfe5 Bd4 Rf6 Bd6 Bef3 Bb8 Rd6
2q2R1R/1B1b4/2Rq1qB1/2b1r1N1/2N2knb/2B1bn2/1Q1BP3/Kn1rqN1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 h4 Kd6 b4 Ke5 c4 a5 Kc2 f5 Kb2 d5 c5 g5 h5 d3 c6 g3 c7 g2 b6 a4 b7 d4 b5 g4 h6 d2 h7 g3 b6 f3 Qc2 d1N+ Ka2 f2 Nh3 g1Q Bh6 f4 Qb2 a3 Bg2 f1Q Qb5+ Bc5 Bg7+ Nf6 Nf2 d3 Qb4 f3 Nd2 Re8 h8B Nc6 b8N Qe1 b7 Nc3+ Kb3 a2 Kb2 Nd4 Nf1 d2 Ne4 d1Q Bh6 f2 Rb1 Nf3 B8g7 Q1d6 Be3 Bd7 Rh8 Qh1 Bd2 Qc8 Rc1 Nb1 Ka1 Rd8 Ng5 Ra5 Bh3 g2 Bf5 g1B Bg6 Be3 Qb5+ Kf4 Rc6 Ng4 Qb2 Rd5 Bgc3 Re5 Ng3 f1Q Rf8+ Bf5 Nd7 Bf2 b8R Bg1 Nf6 Bd7 Ra8 Qff2 Nf1 Qfh4 Rb8 Qh8 Nfe4+ Qhf6 Bc1 Bf2 Ned2 Bh4 Ra8 Qb8 c8B Bc5 Bb7 Qc8 Qb3 Be3 Qb5 Bc5 Nc4+ Be3 Kb2 a1B+ Ka2 Bb2 B1d2 Ba3 Qb2 Bc5 Ka1 Rd5 Ne4 Re8 Ng5 Ree5 Bc1 Rd1 B1d2 Qcc7 Rae8 Qd8 Rh8 Qc8 Ref8
KN2q2k/n3r1N1/1rn2r1r/b2br1R1/R1b3Q1/2BB4/b1P1NNBq/3nR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Kc4 f5 Kd5 Kf7 b4 Kg7 g4 f3 e4 d3 e5 f4 g5 d2 e6 a4 b6 h3 g6 h4 b7 a3 e7 f2 e8R f3 b5 a2 b6 h2 Re4 h3 Rd4 Ra7 Rh4 Nc6 b8N Qe8 b7 Rh6 Nc3 Kh8 Bb5 f1B Ba4 f2 Rb4 Nge7+ Kd6 Bc4 Kc7 f1R Nge2 d5 Qe1 d1R Qh4 d4 Na6 d3 Bb2 d2 Rg1 h1Q Qg4 h2 Nc5 Rf6 Ne6 Rb1 Ng7 d1N Bb5 B8e6 Ra4 Nc8 Ne4 Bb4 Bc3 Rb2 Rc1 a1R Nf2 Ra5 b8N N8a7 Ba6 Re5 Kb7 Ba5+ Ka8 Rb6 Bb5 Ba2 Bd3 Bec4 Rb1 Re7 Rb5 Rb1 Rg5 R1b5 Re1 Qg2 Nf5 h1B g7+ Kh7 g8B+ Kh8 Ng7 Qh2 Be6 Re5 Bef5 Bhd5 Bfe4 Bg8 Bf3 Bgd5 Bg2
2N3rk/4B2r/bKnq1b2/3q4/2B2R1R/r1R1n1PQ/B2NN1rR/1n3bbb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 Kf7 Kc4 Kg7 b4 d5+ Kb3 a5 Ka4 h5 e4 d3 c4 d2 b6 d4 Kb5 h3 b7 h4 g3 f3 e5 a4 c5 h2 c6 f2 e6 d3 e7 h3 e8B a3 c7 a2 Qa4 d1Q Nd2 f4 Bg6 f3 Qb3 Ra3 Qc4 Bc5 Nb1 d2 Be4 Nf6 Bf5 Ng4 Qe6 Ne3 Bc4 f1N Ne2 Nc6 b8R f2 Ra8 Qd5 Ra4 Bb7 c8N Rg8 Be4 Qd6 Bed5 Kh8 Qf5 Qb3 Be6 d1R Nd2 Bb6 Bb2+ Bd4 Rc1 a1B Rc3 Rb1 Bc1 Rb2 Bed5 Bf6 Kb6 Ba6 b5 Qd1 Ba2 Qb3 Bf7 Qbd5 Rf4 Rc2 Rg1 h1B Rg2 h2 Qh3+ Qh5 Bfc4 Bb2 Nb3 Nd2 Rh4 Nb1 Nd2 f1B Rf2 Ba1 Rff4 Be4 Bb2 h1R Bc1 Rh2 Bb2 Bh1 Bc1 Ra5 Ba3 Ra4 Bb4 Ra3 Bc5 Qd5 Be7 Qh6 Kc7 Rg2 b6 Rb2 b7 Rbb3 Rc2 Bad4 b8R Bc5 Ra8 Rb8 Rb2 Rg7 Rb3 Rh7 Rc3 Qg6 Na7 Rg8 Nc8 Nf5 Rb8 Bg1 Rb2 Ne3 Kb6 Qgd3 Rb5 Qd6 Rbh5 Q3d5 Qd7 Rd8 Rh2 Rf8 Qh3 Rg8 Rhh4
3Nk3/Rbq4Q/NB1n2KN/2qBR1bn/1b3r2/1R2Pb1n/1B4bq/q2R2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 b4 a5 g4 f5 c4 a4 g5 h3 c5 a3 g6 h2 e3 f3 g7 h4 c6 f2 c7 f4 b6 h3 b5 f3 b7 a2 b6 Nc6 b8R Rh4 b7 Na5 Bb2 Nf6 g8R Nh5 Qe1 Nc4 Be2 f1B Qf2 Bg2 Kc2 d3+ Kc3 d2 Kd3 d1N Rg5 d4 Nc3 Ra6 Ne4 Rf4 Bc3 Bg4 c8N Qc7 Nc5 Ra4 Qe1 f2 Nf3 f1Q Ne5 B4f3 Ng4 Bh6 Rd5 Bg5 Nh6 Nd6 Qd2 Rb4 Qc2 Rb1 Rg1 h1Q Ne7+ Nc8 Re5 h2 Bb2 Qe1 Ba3 Qea5 Rf1 Qg1 Re1 h1Q Bb2 Qgh2 Rg1 Bc6 Bf3 Qb4 Bd5 Nf2+ Ke2 Qba5 Qh7 Nh3 Kd3 Rc1 Na6 Qc5 Nb4 Rf3 Ke4 d3 Re1 d2 Rf1 d1B Rg1 N5f4 Kf5 Nh5+ Kg6 Rf4 Rf1 Bdf3 Re1 Bd7 Nec6+ Be6 Nd8 Nd6 Ra8 Rb1 b8B Qf1 Ra3 Qa6 Re2 Rg1 Rd2 Qf1 Ba7 Qd1 Rf5 Bc8 Bb6 Bb7 Rdd3 Qa4 Rdb3 Qa7 Rd1 a1B Bc1 Bg7 Bb2 Bc3 Re5+ Be7 Nbc6 Bb4 Nb8 Qa6 Rc1 Qf1 Ra7 Qa6 Rd1 Qa1 Ne6 Bf6 Na6 Bg5 Nd8+
1qB5/1bB1qb2/NK1N2bn/rRN4b/3r1qr1/1P2kB2/3b2RQ/q3B1nR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 g4+ Ke4 b3 f5 e3 h5 b6 a5 Kb5 d5 c4 f3 g5 f4 c5 a4 g6 h3 b7 a3 g7 d3 c6 f2 c7 f3 Bd2 a2 Kb6 h2 Qc1 d4 Nh3 h4 Na3 Bb4 Nb1 Qe7 Bc3 d2 Na3 d1B Bb5 f1Q Bd2 d3 Rg1 h1B Bc3 d2 Ba6 f2 Nb1 Bf5 c8B Bh5 Qb2 d1R Na3 Nc6 b8B Nh6 g8R Bfg6 Be1 Bd2 Nc2 Nd4 Rg5 Nf3 Nb4 Ng1 Nf4 h3 Nfd3 h2 Nc5+ Kf3 e4 Ke3 e5 Bd5 e6 h1B Bd3 Ra5 Be2 Bhg2 Rb1 a1Q Bf3 Rh7 Bd6 Rg7 Bc7 Qe2 Rc1 f1Q Nba6 Bh1 Rb1 Qh2 Rg2 Qf2 Rd8 Bb7 Rd5 Bf7 Qa2 Rg4 Qc2 Qf4 Rc1 Qfh4 Qh7 Qf8 e7 Qfh8 e8N Qe7 Rg5 Be4 Nd6 Beg6 Rc4 Qhd8 Rb4 Qde8 Rb5 Qeh8 Rh2 Bg2 Rh1 Qhe5 Be2 Bb7 Bf3 Qh8 Be6 Qb8 Bc8 Rc1 Qh8 Rc4 Qh7 Rd4 Qh8 Rh4 Rg2 Rg4 Qe5+ Qe4 Qg3 Qf4 Qh2
nNN1bqbq/1BB1B3/bP2q2r/6q1/1K2QR2/3R3n/1k1rqbN1/RnR5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 c5 d3 Kc3 a4 c6 h3 b6 d2 b7 f3 b5 d4+ Kc4 a3 b6 h4 c7 a2 g7 h2 Bd3 f2 Qb3 f1Q Qa3 d1B Be3 h3 Qa6 f4 Na3 f3 Nc2 f2 Ne1 Rh6 Qa5+ Bc5 Bd2 Qg5 Qb4 Nf6 g8R Nh5 Bc3 Bb3+ Kb5 Qe2 Bc4 f1Q Rd1 a1Q Rg6 Qf8 Rd2 Na6 b8B Nf4 Rc2 Qa2 Bd3 Bg8 Rc1 Qe6 Ng2 Bd7+ Ka5 Be8 c8N+ Nc7+ Ba6 Ra7 Be1 d3 Rf6 d2 Bh4 d1N Qb1 Kd4 e5 Na8 Bc7 Nc3 Nf3+ Kd5 Rhe1 h1B Nd4 h2 Nc6 Bf2 Nb8 Nh3 Qe4+ Kc5 Ra1 Nb1 Rf4 Rb7 Rd1 Ra7 Rd3 Rb7 Bd8 Rd7 Bb7 Rd4 Bc7 Kc4 Rd1 Kb3 Rc1 Qg3 Bhd8 Kb2 Be7 Rd2 Kb4 Qg5 Bc5 Qef5 e6 Qfg4 e7 Qe6 Ne1 Bf3 Ng2 h1Q B5d6 Bfh5 Bc5 Bb5 e8R Ba6 Rd8 Be8 Rd3 Qh2 Be7 Qh1 Rf6 Qh2 Rf5 Qhe5 Rff3 Qh8 Rf4
6bR/1RB2Nrb/1q3Qkr/1BNn2BR/b3r1bb/1r3N2/Pn1K2b1/3b3B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 g4 f5 e4 Kf7 d4 h5 d6 b5 d7 c5 e5 h3 d5 b3 g5 c4 e6+ Kg6 d6 h2 e7 b4 e8N c3 Qe2 c2 Qg2 f3 Nf6 h4 Qh3 f2+ Ke2 b2 Nd2 b1B Qa3 b3 Nc4 f4 Nh5 b2 Bd2 c1R Na5 h3 Qc3 f3+ Ke3 Ne7 Ng3 Ra7 N3e2 Na6 Bg2 f1B Qc6 f2 Nc4 Rh6 Qb7 Nb4 Bc6 Bg2 Nf3 f1B Qa6 Nd3 Ned4 Be2 Ne6 Qb6+ Nc5 Re1 d8B Bg4 d7 Rc7 Ba5 Bd1+ Kd2 Re4 Nd6 Nd5 Bb5 Be7 Nf7 Bbc2 Rc1 Ba4 Rb1 Rb7 Bc7 Rh7 d8R Rg7 Rh8 Bf6 Rg1 h1R Bc3 Bd8 Bf6 h2 Be7 Bf1 Rg3 Bg2 Rgh3 Rb8 R3h5 Rb7 Rc1 b1B Rc4 Nb2 Rb4 Rg1 Rb3 h1B Bf6 Rh7 Be7 Rh6 Rb4 Kg7 g6 Rb8 Bg5 Be7 Be3 Bh4 Bef4 Kf6 g7 Kg6 g8B Bd3 Bg5 Rb7 Nd8 Bc4 Bh2 Rg7 Bc7 Rge1 Be6 R1e3 Nf7 Rb3 Bed7 Bgf1 Bc8 Bhg2 Bb7 Bfd3 Qa5 Rf4 Nd4 Ne3 Nd7 Qd6 Qa6 B2h3 Nd8 Bg8 Bh1 Bg2 Nf7 Nd5 Nf3 Kf5 Bc4 Rd4 Rb7 Qe6 Qa5 Qb6 Bb5 Rc4 Nc5 B3c2 Bgf4+ Kf6 Be3 Bch7 Qc3+ Kg6 Bg5 Re4 Qf6+
7B/1B6/bBRbR2P/k2Rn1K1/q1rn3n/rb1b3B/1rN3N1/Qq2q1nN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 e4 Kd7 e5 Kc7 e6 Kb6 e7 d3 e8R f3 Ke3 f4+ Kd4 g3 Ke5 g2 h5 f2 h6 f3 Ra2 a4 Qb3 d2 Rh4 d1B Qc3 g4 Kf4 d4 Ne2 g1N Rc2 g3 Bh3 f1R Rh5 f2 Be3 a3 Rd5 a2 Na3 a1N Re6+ Nc6 Qb2 g2 Ng3 Be7 Nh1 Nb3 Qa1 Qd7 Kf5 Bc5 Kg5 d3 Rc1 d2 Nc2 Ra7 Ne1 Nd4 Rc3 Bd6 c5+ Kc7 Rc2 Ne5 c6 Kb6 c7 Ba6 c8B Ne7 Bb7 N7g6 Rc3 Bb3 Rc4 d1Q Rc2 Raa8 Rc6+ Ka7 b6+ Kb8 b5 Rc8 Bc1 Nh4 Ba3 Qb1 Bb4 Rc7 Bc5 Ra7 Ba8 Kc8 b7+ Kd8 b8B Rcb7 Nc2 Rc1 b6 f1B Ne3 Rc4 Bc7+ Kc8 Bd8+ Kb8 Bf6 Bd3 Bh8 Qe1 Rc7 Qa4 Rc6 Rf7 b7 Rf2 Rb6 Kc7 b8N Rfc2 Nc6 Rb2 Nb4 Qb1 Nbc2 Qe1 Rb7+ Kc6 Rh7+ Kb5 Rc7 Ka5 Rc6 Nge2 Bb7 g1Q+ Kh5 Qb1 Ng2 Qge1 Kg5 Ng1 Ba8 Rf7 Bb7 Rf2 Qa3 Ra2 Qb2 Ra3 Qa1 Rd2 Nb4 Rda2 Nc2 Rb2 Bb6#
K1R2B1k/b1Nn4/6QP/3r1Nn1/4rN2/1rqn2qR/N3BRB1/2n1qqrb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 c4 f5 e4 Kf7 h4 Kg7 b4 a5 e5 d5 h5 d3 b6 a4 b7 d4 b5 a3 b6 a2 c5 g3+ Kf3 d2 c6 g4+ Kg2 d3 e6 Qd4 c7 Qc3 e7 Nh6 e8R Bc5 Qb3 d1R Nf3 d2 Bc4 Nf7 Qc2 Ng5 Rh3 Nd7 b8N Bb7 c8B Ra4 Be2 Re4 h6+ Kh7 Ne1 f3+ Kf1 f2 Kg2 f1N Nd3 f4 Ba3 Nh2 Rg8 Nhf3 Nc6 Nfe5 Nd4 Bd5 b7 Ba7 b8N Bb7 Ne1 Nd3 Na6 Bd5 Nf5 f3+ Kh1 f2 Kg2 Nc1 Bb7 Bc6 Ra8 Rb8 Bf8 Kh8 Nd3 Bd5 Bc6 Rb3 Nf4 Nd3 Rc8 Nc1 Na3 Nd3 Rc1 a1N Ba8 Bb7 Nb4 Bc6 Nb5 Bb7 Bf1 Bc6 Nc7 Bd5 Kh1 g2+ Kh2 g1R Na2 Bb7 Be2 f1Q Qb1 Rb6 Rc2 Nb3 Rb2 Nbc1 Rc2 Rb3 Rb2 Rh1+ Kg3 Qe1+ Kg2 g3 Rc2 Ne6 Kf3 g2 Rb2 g1Q Qc2 Qg6 Qb1 Rg1 Rc2 Rd4+ Ke3 Bh1 Bg2 Rd5+ Ke4 Qgg3 Rb2 Rdb5 Qc2 R5b4+ Kd5 Ng5 Qb1 Re4 Rc2 Bc5 Kc6 Bb6+ Kb7 Ba7+ Ka8 N3c5 Rd8 Qf1 Nd4 Re5 Bc4 Rd5 Re8 Re1 Rc8 d1Q Rf2 Re3 Qd3 Qde1 Qg6 Re4 Be2 N5d3 Nf5
2n3n1/1QR1b3/qr3k2/1rq3nq/1B1NRp2/1K1N2Pn/N2B2B1/bR3bnN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 h5 c4 d5 Kc2 f5 e4 a5 b6 h3 g3 h4 b7 f3 e5 d3+ Kb2 f2 c5 h2 b5 a4 e6 d4 b6 a3+ Kb3 h3 c6 d2 c7 f4 Nf3 a2 Bc4 f1Q Nh4 d3 Kb4 Ra6 Ng6+ Kf6+ e7 Qd4 Qb3 d1N Ne5 d2 Nd3 Nf2 Rg1 h1Q Nc3 d1N Bd2 h2 Rb1 a1B Na2 Nd7 b8N Nh3 b7 Nc3 Nc6 Ng5 b8B Rh5 Re1 Qe5 Re4 Nb6 Bd5 Bh3 c8R Ne2 Rc7 Nc8 Nd4 Rb6+ Kc4 Qhf3 Rh1 Ng1 e8N+ Kg6 Ba8 Be7 Nd6 Kf6 Qb4 Q1e2 Kb3 Qc5 Ba7 Bf1 Qb5 Rb8 Qb7 Rh6 Bb6 Qh5 Bba5 Rg6 Bab4 Rh6 Nf2 Qa6 Nc4 Rg6 Nb2 Rh6 Qd5 Rb5 Qb7 N1f3 Rg1 h1N Nbd3 Rg6 Nd1 Nf2 Rh1 Nfh3 N1f2 Bg2 Rb1 Bf1 Nh1 Nfg1 Qb8 Kg7 Bd5 Rgb6 Qb7 Kg6 Re6+ Kg7 Bg2 Kf7 Re2 Kf6 Re4
4q1n1/NrBBq2R/2n1r3/rB4q1/qNqpN3/7B/k3RRPK/bn1b2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Kd6 e4 Kc5 b6 Kb4 e5 d5 b7 a5 b3 h5 e6 f5 c5 a4 e7 a3 e8B h3 c6 a2 c7 h2 Be2 h4 Ba4 f3 Bc6 h3 Kg3 f2 Nc3 f1N+ Kf4 d3 Ba4 d2 Nb1 Nc6 b8N Ra7 Na3 Qg5+ Kf3 f4 Bc4 Bg7 Ne2 Bg4+ Kf2 f3 c8B Rb7 Bcb5 Rh6 Ng3 Re6 Ne4 Bb2 Rb1 Ba1 Rb2 d4 Qe1 Bh5 Qe3 d1Q Re2 Nd2 Nc2+ Ka5 Ba3 Nb1 Bd6 Bg4 Kg3 f2 Bf4 f1Q Qg1 Qe7 Be5 Qff8 Bf4 Qfe8 Bd7 Qf1 Rf2 Qc4 Bc7+ Rb6 Bc8 Bd1 Re2 Nb4 Bbd7 Nc6 Bb5 Qa4 Bd3 Qc4 b4+ Ka4 b5 Rb7 b6 Kb3 Rf2 Bb2 Be2 a1R Bf1 Qa4 Bb5 Qc4 Re2 Ra5 Rf2 Ka2 Re2 Nb4 Nc6 Ba1 Na7 Nc6 Bd6 Rc7 b7 Qa4 b8R Rb7 Bc7 Qc4 Qe1 Qa4 Rf1 h1Q Rff2 Qf1 Kh2 Qg5 Rd2 Qd3 Qg1 Qdc4 Rde2 Qge7 Kg3 h2 Kh3 Rb6 Rb7 h1Q+ Kg3 Re5 Bh3 Re6 Bd7 Qg5+ Bg4 Qge7 Bf5 Qhh5 Bh3 Qhg5+ Kh2 Qa8 Rb8 Rb7 Re8 Qeg7 Re7 Qe8 Ref7 Q7f6 Rh7 Qfe7 Nb4+
3b4/3N3b/rN2q1P1/4b3/2rRn1R1/2q1RkB1/BN1r1pr1/KQNrBqn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Ke6 g4 Ke5 c4 f5 Kc2 d5 b4 a5 Kb2 h5 g5 h3 b6 h4 b7 d3 b5 h2 c5 d4 c6 a4 b6 f3 c7 h3 Ra2 f2 Qh5 d2 Ne2 d1R Qh7 a3+ Ka1 f4 Rg1 h1R Bg2 f1Q Qh5 h2 Qg4 d3 Qh4 f3 Ng3 d2 Rb2 a2 Rb4 f2 Na3 Bf5 c8N Qf6 Ne2 Ra6 Rd4 Nd7 b8N Bh7 b7 Be7 g6 Bd8 Nb6 Qe6 Qh3 Ngf6 Qb3 Re8 Qb1 Rf8 Bf3 Rg8 Rg4 Rg1 Bb2 h1Q Nc1 Qhh3 Bc3 Rg2 Be2 Rg7 Bc4 Rg8 Rg5+ Kf4 e5+ Ne4 Rg4+ Ke3 Bb3 Kf3 Nac4 Rf8 Nb2 Rf4 Bb4 Qe8 e6 Ne5 e7 Qd7 e8R Qe6 N8d7 Qg3 N2a4 Qh3 Kb2 a1B+ Ka2 Re1 b8B d1R Ba5 Re2+ Nb2 Red2 Bc4 Ke3 Re7 Nf3 Bb3 Ng1 Be5 Rf5 Bg3 Rc5 Bd5 Rc4 Re8 Qf5 Bg8 Kf3 Re7 Nc5 Re2 Qe6 Rge4 Qc6 Rd6 Rc3 Be6 Rd4 Nbd3 Qf5 Rg4 Ne4 Bb3 Rc5 Bf7 Bc3 Nb2 Qc7 Bb3 Qe6 Ka1 Rdd5 Ba2 Be5 Be1 R5d2 Rd4 Rc6 Nc8 Qa5 Ncb6 Rc4 Nd5 Qb4 N5b6 Qc3 Re3+
1N2B2K/2Bq2RN/1N1pkQr1/1Rb2nPn/2nB2b1/1b3qn1/1r4B1/nq1R4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 a5 Kg4 h5+ Kg5 f5 Kg6 f3 b4 a4 c4 f2 g4 f4 e4 f3 c5 d3 b6 h3 e5 h2 g5 h4 c6 a3 c7 a2 b5 d2 e6 h3 b7 Nf6 b6 Ra6 Nc3 Nc6 b8B Nd4 Rb1 a1N b7 Rh5 Qb3 d1B Qb6 Ba4 Rb4 Bb3 Be3 Rh4 Nge2 Nh5 Rg1 h1Q Kh7 h2 Ne4 Qg2 Kg8 h1Q Rb5 Rh2 Nf4 Qg4 Bh3 f1N Nf6 f2 Nh7 Nfg3 Kh8 f1N Bf2 Nd2 Nd5+ Ke8 e7 Kf7 Rf1 Nc4 Be3+ Rf2 Bg2 Qf3 Qh6 Re6 Nb6 Rb2 e8B+ Ke7 Rb1 Kd6 Qg7 Rg6 Rc1 Qhd1 Bg1 Qc2 Rd1 Qb1 Bf2 Ke6 Bg1 Bc5 Qf7+ Ke5 Qf6+ Ke4 Be3 d6 Bg1 Be6 c8R Bg4 Rc7 Ndf5 Rg7 Qd7 Bc7 Kf4 b8N Ke4 Qf8 Ke5 Bd4+ Ke6 Qf6+
R1Qq2b1/3Br2B/qNp4B/1r3n2/2P2qNb/q1N1B2n/1R3b2/k2K1Rqn b - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 d4 Kd7 g4 Kd6 b4 Kd5 g5 e5 c3 f5 g6 h5 b6 a5 g7 c6 b5 e4 b7 f2+ Ke2 Kc4 d5 h3 d6 e3 d7 h4 b6 f4 Qd4+ Kb3 Nf3 h2 Qf6 h3 Qd4 a4 Rg1 h1Q Bb2 a3 Ne5 f3+ Kd1 h2 Ba6 e2+ Kc1 e1B Bf1 a2 Bh3 f1Q Bg4 f2 Nf7 Na6 b8N Nb4 b7 Ra5 Qd6 Nd5 Qf6 Nf4 Qf5 Ne7 g8B Rh7 Kd1 Nh3 Bc1 Rb5 Be3 Kb2 Nh6 Rf7 Qe6 Nf5 Bh7 Be7 c4 Bh4 Nc3 Re7 Rg2 Qhg1 Rc1 h1N Rh2 Qc7 d8B a1Q Nd7 Qa3 b8R Qb7 Bdb6 Qba6 Ra8 Qd3+ Bd2 f1Q Be3 Qf4 Nb6 Qd8 Qg8 Nd6 Bd7 Nf5 Ng4 Bhf2 Rc2+ Ka1 Rb2 Bh4 Re2 Bef2+ Re1 Qe8 Rf1 Qd8 Be8 Be6 Bd7 Bf7 Qf8 Bg8 Bc1 Qdc7 Qc8 Qd8 Bcd2 Qfd6 Bh6 Qf4 Be3
2n2BN1/7K/qnp5/qk1P1B1B/1rQb4/rbRrbq2/1N1RRN2/2rr3B b - - 0 1 illegal: No possible last move
1bqN1rkR/5r2/1pnNbrnP/4Q1q1/N2Nr2q/R1K1BB2/rn5R/4B3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 g5 Kd2 f5 h4 Kf7 e4 c5 a4 f3 a5 f4 e5 b3 a6 b2 h5 g3 h6 b6 a7 c4 d6 c3+ Kc2 f2 d7 f3 d5 g4 d6 g2 Qe1 g3 Ra4 Nc6 Qe4 Qh4 d8B Be6 d7 Nge7 Rb4 Kg8 Rb3 Ng6 Qd4 Bd6 Ra3 Bb8 Be2 f1R Be3 f2 Nf3 g1R Rh2 g2 Qe4 Re1 Nd4 Rgf1 Bf3 g1Q Bdg5 Rh7 d8N Rf7 Bd2 Re2 Be3 Qgg5 Kd3 c2 Be1 c1N+ Kc3 Nd3 Qf5 Bc8 e6 Bd7 e7 Be6 e8N Rf6 B3d2 Re4 Be3 Rf7 Nd6 Rf6 Nd2 b1Q N2b3 Nb2 Nc5 Qa2 Qe5 Qc4+ Kd2 Qa6 Kc3 Qb7 Na4 Qc8 B1d2 Ra1 Be1 f1R Kc2 Bc7 Kc3 Rb8 a8R Ra2 Ra5 Rb7 Ra6 Bb8 Ra7 Rbf7 Rc7 Rf8 Rh7 R6f7 Bg4 R1f5 Bf3 R5f6 Rh8+
Q4n1q/1q1B4/P1BR2BN/2RK1Nr1/rN1nn1k1/1r1b2p1/1BR5/1qq1b1q1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 b5 a4 f5+ Kd3 d5 h4 g5 e4 f3 c4 f2 a5 g4 c5 f4 h6 b3 c6 b2 h7 f3 c7 b4 e5 Kf5 h5 b3 e6 g3 e7 Nd7 e8B Ngf6 h6 Rg8 h8R Bb4 h7 Rg5 Qe1 Kg4 Bg6 Ne4 Be8 Nf8 Rg8 Bf5 Bg2 f1N h8N f2 c8B Nfd2 Ne2 f1R Nf7 Nf3 Na3 b1Q+ Nc2 b2 Bcd7 Rb8 Qd1 Be1 a6 Rf2 Ra5 Rb3+ Nc3 Qf6 Rh6 Qh8 Rd6 Re2 Bh1 Rh2 Rc5 Rh4 Bd2 Qc1 Nb4 b1Q+ Qc2 Qbb2 Bf4 Qcb1 Be5 Q2c1 Rgg6 Qcb2 Rdc6 Q1c1 Rgd6 Qcb1 Ke2 d3+ Ke3 Nd4 Ne2 d2+ Qd3 d1Q Nh6+ Kh3 Rc2 Rhg4 Qc3 Qdc1+ Kd3 Kh4 Rc5 Rf4 Bg6 Kh3 Nf7 Kg4 Bg2 Nc6 Bg7 d4 Kc4 d3 Kd5 d2 Nd4 d1Q Bh1 Bf2 Qd3 Qg1 Qb5 Be1 Qb7 Rff3 Qa8 Rf4 Ne6 Nd4 Be5 Ra3 Ng7 Ra4 Bf6 Rf3 Bg2 Rb3 Nh6+ Kf4 Bf1 Kf3 Bfb5 Kf4 Bbc6 Kf3 Nf7 Kg4 Nh6+ Kh3 Rf2 Rc3 Rb5 Nc2 Bd4 Bg4+ Ngf5 Be2 Ra5 Bd3 Na2 Qb7 Nb4 Rb3 Bb2 Nd4 Rg2 Rh5 Rc5 Rg5 Nf7 Kg4 Rgc2 Kf4 Nh6 Kf3 Ng8 Kg4 Nh6+
b1nqN2b/1r2pb2/K1R5/2r1N2N/k2Pq1qQ/1bR5/n3B1bB/1B3rBR b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 g4 c5 f4 h5 a4 b5 d4 e3 Kd3 c4+ Ke4 b3 g5 h3 d6 Kc6 f5 b4 d7 c3 Kd3 e2 Kc4 e1Q g6 b2 f6 h2 a5 h4 a6 b3 f7 c2 a7 h3 g7 Qg3 Kb4 Rh5 Ra3 Nf6 g8N Qg4 Ne2 Ne4 Nh6 Bg7 f8B Na6+ Kc4 Bh8 Nf5 Rb8 a8B+ Rb7 Bg7 Nb4 Nd2 b1Q Qe1 b2 Rc3 Na2 Nf3 Kb6 Bf4 Ka5 Ne5 c1R Bgh6 Ka4 Qh4 Nd6+ Kc5 Rd1 Neg3 Qe4 Ng7 b1B Ne8 Bc2 Be2 Rf1 Be3 Bb3 Bhf4 Rg5 Nh5 Bf7 Rg1 h1B Bh2 Bf3 Rh1 Bg2 Beg1 Bb3 Bg3 h2 Bf4 Rc7+ Kb6 Rb7+ Ka6 Bf7 Nc6 Rc5 Ne5 Qc7 d8R Bce6 Bg3 Nc8 Rd6 Bb3 Rf6 Qd8 Bf4 Rbc7 Bd5 Rb7 Rc6 Qef3 Be4 Qe3 Bb1 Qef3 Bf2 Qe4 Rg1 h1B Bh2 Bf3 Be3 Bhg2 Rh1 Qeg6 Bg5 Rb4 Rd6 Ba8 Rc6 Rb7 Be3 Q6e4 Beg1
Nn3n2/bKnp1Q2/B1N2B2/N1Rr1P2/2nB1q2/3bNqk1/1R1r4/qR3b1n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 e5 b4 a5 c4 h5 c5 d3 Ke3 h3 g5+ Kf5 g6 d2 c6 h2 b6 h4 b7 h3 c7 a4 g7 a3 b5 a2 b6 Bc5+ Ke2 Kg4 f5 e3 Kd3+ e2 Ke4 Qh4 Kd5 e4 Qe1 d1B Qb4 e1N Qc4 Kg3 Be3 Bc2 Nc3 Nd3 Rb1 a1Q Bd4 e3 Nd1 e2 Rb2 e1N Nf3 Ng2 Ne5 Ra5 Ne3 Qf4 Nc6 Ne5 Qa2 Nh4 Ba6 Nc4 Rhb1 Rb5 Na5 h1N Bf6 h2 Bd4 Nh6 g8R+ Ng6 Re8 Rg8 Re5 Nf7 Qb3 Bd3 Qa2 Nc6 b8B Nfd6 b7 Nf8 Ba7 Ne8 b8N Bb7 c8N Rh8 Bb6 Rh6 Bd8 Ba7+ Bc5 Ba8 Bf6 Rh8 Nb6 Rh4 Rf2 Rb2 Bd4 Nc7+ Kc5 Rd2 Rff1 Bb7 Rb2 Rh6 Rfb1 Bf1 Be7 Rd6 Bf6 Bd3 Bb5 Ba6 Qb3 Na3 Qf7 Bf1 Be2 Bd3 Rd5 Nc4 Re5 Na8 Kb5 Rd5+ Ka6 Nc7+ Kb7 Nb5 Na8 Nc7 Na6 Nb8 Nb4 Nf2 Nbc6 h1Q Nd1 Qhf3 Ne3 Rd6 Rc5 Nh1 Bd1 Rd5 Ba4 Q3g4 Bb5 Qgf3 Ba6
1qkr4/RRp1NBr1/Q1n5/1N2Rn2/P3Nq1B/K4Bbn/5bb1/Br3bb1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 b5 Kc2 g5 Kb2 f5 h4 g3 e4 b3 a4 g4 e5 g2 d6 g3 d5 f3 h5 f4 h6 f2 h7 b4 Na3 f3 Rb1 Nc6 Ne2 g1B Nb5 g2 Rh5 Bb7 e6+ Kc8 e7 Nh6 e8B Nf5 Bf7 Rg8 h8B Rg7 Ng3 Qg5 Be3 Qf4 Be2 f1B Ne4 Bf2 Qd3 g1B Bc5 Bg3 Bf2 Rb8 Be1 f2 Bf3 Be7 Qe2 Beh4 d7+ Kd8 Ka1 b2+ Ka2 b3+ Ka3 Ba8 Nd4 Bb7 Qa6 Ba8 Nb5 Bb7 Rd1 b1R Rd3 b2 Rb3 Be2 Rg5 f1N Rh5 Nd2 Bf2 Ke7 d8N Kd7 d6 Bf1 Rg5 Kc8 Be1 Nfd4 Re5 Nf5 Bf2 Rg5 Bf6 Rg7 Bd4 B3f2 Rb4 Bhg3 Bh4 Rc1 Rb3 b1Q Ba1 Ra8 Bg2 Nf3 d7+ Kb8 Bh1 Ng5 Bf3 Nh3 Ne6 Qc2 Nf8 Rb1 Ng6 Qcd2 Ne7 Qd4 Nc8 Qb6 d8R Qa7 Rdd5 Qb6 Ne7 Qa7 Ng8 Kc8 Rc5 Qb8 Ne7+ Kd7 Nbd6 Kd8 Ra5 Kd7 Nb5 Kd8 Ng8+ Kc8 Ne7+ Kd7 Qa7 Bc4 B3h5 Ncd4 Nd2 Qh8 Nc3 Bg2 Rb7 Bcf1 Nde4 Nc6 Nb5 Qg8 Bf3 Qc8 Rb6 Qb7 Raa6 Rd8 Ra5 Qa8 Rb7 Qb8 Qb6 Rf8 Raa7 Rd8 Ng8 Kc8 Qa5 Rh7 Qa6 Rg7 Ne7+
N2n3B/1p3BBr/1r1b2R1/2N1B2Q/K1Nr1r2/1P5q/R1n1n3/bRr1kq1b b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 a3 b3 exf6 Qc2 f5 Qc3 f4 Qb2 axb2 Kd1 Kd7 Kc2 Kd6 e4 Kc5 d4+ Kb4 a4 h5 g4 f5 d6 c5 d7 c4 e5 h3 a5 h4 d5 c3 d6 h2 a6 f3 e6 h3 e7 f4 e8Q f2 a7 f3 g5 Nh6 g6 Nf5 g7 Nd4+ Kd1 c2+ Kd2 Qh4 d8B Bd7 g8N Nbc6 Qh5 Rh6 Ra6 Ne2 Bf6 Rd8 Nc3 b1N+ Kd3 Bg7 a8R Na3 Bf4 c1B B4e5 Bf4 Ne7 Nc2 Ne4 Qg3 Bg2 f1R Nc8 f2+ Nf3 Rh7 Rg1 h1R Nc5 h2 Nb6 Qh3 Ra2 Rc1 R8a6 f1Q Na8 Be6 d7 Bd5 Ne6 Rf8 Nc5 Nd8 Rd6 Bh8 Bg7 Bg3 Rc6 Rf4 Nd2 Rh6 Rca6 Rb6 Be4 Rd1 Bg6 Bf3 Bf7 Rc1 Rg2 Rg1 R6a3 h1R Nc4 Bh2 Rg6 Rgg4 Ra1 Bg3 R3a2 Rh2 Bh6 Bh1 Rb1 Bf6 Bg7 Rh4 Bb8 Bc3 Bbe5 Ba1 Qg5 Rh7 Qh5 Rhf2 Bh8 Rg4 Beg7 Bd6+ Kd2 Rff4 Be5 Nc6 d8B Rh4 Bdf6 Nd8 Qg5 Re4 Bfg7 Rhf4 Qg4 Rd4+ Nd3+ Kb5 Qh5 Kc6 Re6 Kd5 Rg6+ Ke4 Nb2 Ng3 Kc3 Ke3 Nc5 Kf2 Ra5 Rf5 Ra2 Ke1 Ra3 Rdd1 Ra2 Ne2+ Kc4 Ra6 Kb5 Rd4 Nc4 Rb6+ Ka5 Rff4 Ka4
3r1r2/1pR4R/1BB3Nq/NK3P1Q/5Bq1/qb4b1/1bB1kr2/bNb1n1nR b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 f4 Kf6 g4 c5 a4 h5 d4 e5 g5+ Kf5 a5 Kg4 d6 h3 d5 b3 a6 h4 a7 e3 Kd3+ e2 Kc4 e4 f5 h2 d7 h3 d6 e3 g6 b2 g7 Qa5 d8B Be6+ Qd5 e1B d7 e2 Bc7 Bc3 d8R e1B Bg3 Nf6 g8B Nfd7 Re8 Nc6 Rb8 Nde5+ Kb3 c4+ Kc2 Nd4+ Kd1 Nc2 Ke2 Nf3 Qd2 Qa3 Be5 Bg7 Bg2 Bg3 Bf4 Nce1 Rc8 Bcd4 Bf7 c3 Rc7 c2 Qd1 Rad8 a8N Rhf8 Bce3 c1B Nb6 Bb3 Nc4 Bge5 Na5 Bc3 Nd2 b1Q Bb6 B3b2 Bg8 Qba2 Nb1 Qb4 Bc4 Qaa3 Bd3 Bed4 Ra2 Ba1 Rd2 Bdb2 Bc2 Qba4 Ke3 Qc4 Ne2 Ng1 Bc6 Qg8 Bb5 Qg5 Ke4 Qg7 Rd4 Qg5 Ke5 Kf3 Bc6+ Kf2 Ke4 Qg6 Rdd7+ Kf1 Rh7 Qg4 Nd4 Kf2 Nf3+ Kf1 Qd5 Ke2 Ne5 Ngf3 Rg1 h1R Qf7 Rh2 Qh5 Rf2 Ng6 h2 Rh1 Ng1 Nc4 Rb8 Kd5 Rbd8+ Rhd7 Qa7 Kc5 Qa3+ Kb5 Ngf3 Rf1 h1Q Rh7 Ng1 Na5 Qh3 Qg5 Qh6 Qh5 Nh3 Rh1 Ng1 Rh2 Rde8 Rh4 Rd8 Rh1
1K1kq2q/p1r2b1B/2R2b2/3NN1qB/bB5r/R1n4P/r1Nbb2R/1Rn4Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 e4 d5 b4 f5 c4 f3 Kg3 f4+ Kf2 g3+ Ke1 d3 Kd2 f2 Kc3 g4 Kd4 d2 Ke5 g2 h3 d4 c5 f3 c6 d3 c7 g3 b6 Bh6 b5 Nf6 b7 Nd5 b6 Nd7+ Kd6 Nc3 b8N Ne5+ Kc5 Be6 c8R Bf7 Qe1 d1R b7 d2 Rh2 Nd3+ Kc6 Bg5 e5 Rh4 e6 Bf6 Be2 f1B e7 f2 Nf3 g1B Ne5 g2 Bh5 Be2 Nbd7 f1Q b8R Be3 Kb7 g1Q Nb6 Qg5 Ba3 Nc1 Rc6 Qh1 Nd5 Qe4 Qh1 Rg1 Nf4 d1B Bb4 Ba4 Na3 Rg2 Nd5 Bd2 Nc2 Qh7 Bg6 Qh8 Bh7 Rf2 Rb1 Rg2 Rbc8 Rf2 R8c7 Rc8 Ra6 Qd7 Ra5 Qe6 Rc6 Rc7+ Kb8 Rg2 Ng4 Kd7+ e8B+ Kd8 Ne5 Qe7 Bd7 Qef8 Bg4 Qe8 Bh5 Ba6 Rb6 Bb3 Bc5 Be3 Ne1 Ra2 Ra3 Be2 Rc6 Ba4 Bb4 Bd2 Nc2
1nbQk1K1/B1RpN3/BNnB4/1nrnP1n1/2r2Bb1/RR5n/4qN2/3n2b1 b - - 0 1 illegal: No possible last move
1b1BR3/NP3nR1/1R4Q1/1N1N2b1/bbK1Bbr1/p1b3n1/k1N1r1q1/2r1B1b1 b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kd7 h4 Kd6 f4 Kc5 d4+ Kb4 d5 e5 h5 c5 b3 g5 h6 a5 d6 a4 b6 e3 f5 g3 h7 g4 d7 g2 b7 a3 f6 g3 f7 e4 Rh3 c3 Ra2 c4 Qe1 Bh6 f8R Qg5 d8B Ra4 Bc7 Bd7 Bb2 Ne7 Be5 Nf5 Bf6 Nc6 b8N Nd8 Nf3 g1B Re8 g2 Rg3 Nf7 Bd8 Bh2 Nd4 g1B Bg2 Bb5 Qc1 c2 Nc3 Qg4+ Bf3 Bf4 Qb1 c1B Qd3 Bd7 Ncb5 c3 Ba1 c2 Rb2 Rf8 h8N Bd2 Ng6 c1R Ne7 Qg8 Bh1 Bc3 Rf3 Qg2+ Rf2 Rg8 Rb1 Rg4 Nbc6+ Kc5 Nca7 Kb4 Bb2 Bb8 Qc2 Bhf4 Ba1 Ra6 Bb2 Re6 Nd5+ Kc5 b4+ Kc4 Nbc7 Ba4 b5 Re7 b6 Re5 b7 Bg5 Ndc6 Re7 Qd3+ Kb3 Ncb5 Ka2 Ncd4 Bb4 Qc2 B4d6 Qd3 Bdf4 Nc2 Re6 Bc3 Re5 Qd1 Ng3+ Ke1 e2 Bd2 Nd6 Rf1 Qh2 Na1 Rc5 Nbc7 Bfe3 Rf7 Bef4 Rg7 Nf7 Rb6 Rc3 Bf3 Qg2 Ncb5 Rc2 Bc3 Re7 Qd2 Re6 Qe3 Rc1+ Kd2 Re5 Nc2 Re7 Bb2 Re5 Kc3 e1B+ Kd4 Bb4 Kc4 Re7 Qe2 e3 Qd3 e2 Qg6 e1B Bc3 Re2 Be4 Bed2 Bd4 Be1 Bf2 Bec3 Be1
RB5K/2b1q1r1/2B4N/1r1NRp1B/Q1nbNn2/2nR2rk/P2q1B1q/3br3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 b5 e4 c4 d4 f3 g4 b3 d6 c3 e5 f2 g5 h3 g6 h4 g7 c2 d5 b2 Bd2 c1B Bg2 f1R+ Nf3 b4 Be3 h2 Bg5 b3 Qe2 h3 Be3 Nf6 g8N Ra7 Qf2 Nc6 Nd4 Bg7 Nd2 b1N Kg5 b2 Ne4 Na5 Kf5 Nc3 Nb5 b1R Nc7 Re1 Nh6 Rg8 Qf4 Nh5 Bf2 Rb5 Bf3 f6 Kg6 Nc4 Kh7 Qe7 Be2 Be3 Rd1 Bb6 Rd3 Bd4 Qh4 Nf4 Bh5 Ra3 Rg1 h1Q Rg5 h2 Rf5 Qg2 e6+ Kd8 d7 h1Q Rg5 Qhh2 Re5 f5 Qg4 Ba6 Qd1 Bb7 Qa4 Qgg5 Na6 Bc6 Nb4 Kc7 d8R Bd7 Nf6 Kd6 Ra8 Bb6 Ree3 Be8 Ne4+ Ke5 d6 Bc7 d7 Rb3 d8B Qgg2 Bh4 Qd2 Nd5 Bf7 Bf2 Bf6 Bg4 Rg7+ Kh8 Bh5 Bf3 Bg4 Bg2 Bd1 Bf3 Qa3 e7 Qc5 e8B Qe7 Beh5 Ne6 Ng5+ Ne4 Nb4 Kf4 Rd5 Bb6 Rc3 Bfd4 Re5 Ra3 Bc7 Rb3 Bg1 Kg3 Bb8 Nf4 Re3 Bc7 Bh1+ Kh4 Bf2+ Ng3 Bc6 Ra3 Ne4 Kh3 Bf3 Nge2 Nd5 Rc3 Qb3 Rd3 Qa4 Nc3 Bh5+ Kg2 Re2 Rdg3 Re3 Kh3 Rd3
1q1BrrR1/3q1N1r/Rnn3Pq/1n1NR2B/1b2B1p1/Nb1K4/3Qr3/3R2kb b - - 0 1 illegal: No possible last move, all moves rejected
bRQ4q/Nbn4r/2n1B1pR/3BB3/2qBP1Rb/r4q2/4N1bK/2rkN2n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Ke6 b4 Kf5 c4 Ke4 h4 f5 b6 d5 b7 a5 h5 g3 h6 d3 h7 f3+ Kh3 g2 c5 d2 c6 Ke3 b5 g6 c7 a4 b6 d4 Ra2 d3 Rh2 f2 Ra3 Nc6 b8B Qf6 b7 Be7 Nf3 g1R Rc3 a3 Bg2 f1B Rc2 a2 Rc5 a1Q Rc3 Ra3 Nd4 f4+ Ne6 f3 Bb2 f2 Qc2 d1N Rc4 d2 Nc3 Qf5+ Rg4 Nf6 Kg3 Nd5 Rh6 Qf3+ Kh2 Bh4 Bh1 Bh3 Nf4 f1Q Nd3 Bg2 Ne1 Nf2 Qf5 d1B Qd7 Rf8 h8R Kd2 e3 Rf5 Ne2 Rf7 Bd4 Rh7 Qe6 Ba4 Qf5 Kd1 Rf8 Be6 c8B Nc7 Bd7 Bd5 Be6 Bc2 Rh8 Bde4 Qf8 Bb3 Qc8 Bbd5 Rd8 Na8 Bbe5 Nc7 b8N Qc3 Ba7 Qc4 Rg8 Qf6 Bad4 Qh8 Ng3 Qfe2 Re8 Qf3 Ne2 Na5 Rd8 Ba8 Nc6 Rf1 Na7 Beb7 Qd7 Nc6 Rb8 Rg1 Qc8 Bf1 Bg2 Nh1 Bh3 Bg2 e4 Rf1 Bd5 Rf2 Ng1 Rc2 Ne2 Rcc3 Rf4 Rc2 Bhe6 Rc1 Rg4
b2K1bq1/3RQB2/3q1p1N/nPn1kn2/Nq1rn1R1/6Nb/BB1r3N/2r2R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 a5 Kf5 h5 g4 f6 c4 d3 b4 f3 e4 f2 b6 d2 g5 a4 b7 h3 g6 h4 b5 a3 g7 h2 Ne2 h3 Kg6 a2 Kf7 Ne7 g8N Rh4 c5+ Ke5 c6 d5 c7 d4 Qe1 d1Q Nbc3 d3 Na4 d2 Nh6 Nf5 Ng3 Qg4 Rg1 h1N Bc4 Nd7 b8N d1Q Bb2+ Qd4 Qe2 h2 Raf1 a1N Ba2 Nb3 Rg2 Bb7 c8R Ndc5 Rc7 Qd6 Ke8 Na5 Rd7 Qg8 Kd8 Ra7 Rgg1 Ba8 Rg2 Kf4 e5 Qb4 e6 Ra6 Ne4 Nhg3 e7 h1R e8B R1h2 Qe1 Rc6 Bef7 Rc7 Nc6 Rg4 Nd4 Ke5 Nec3+ Nge4 Nce2 Rf4 Rg4 Rc6 Rfg1 f1B Ng3 Bh3 Rh1 Rd2 Rf1 Rf3 Rg5 Rfd3 Nf3+ Kf4 Qe2 Rd4 Nh2+ Ke5 Rg6 Na6 Qe3 Rc1 Rg4 Nc5 Qg5 Nf2 Qg7 Qh7 Bfe6 Qg8 Qe7 Nfe4 Bf7+
3k2qB/1N1npRn1/1N4r1/2b2P2/1BrQ1n2/1R3Rrq/2Nqb2b/2q2BRK b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 g4 h5 c4 d5 f4 e3 f5 e2 Kf2 e1N c5 d3 c6 a4 b6 h3 b7 h4 c7 d2 g5 d4 b5 a3 b6 a2 g6 h2 g7 h3 Ba3 d3 Qc2 d1R Bb4 d2 Bg2 Rh6 Qb2 Nd3+ Kg3 Ra4 Bc6+ Nd7 b8R Ba6 c8N Nf6 g8R Nf4 b7 Be2 Nf3 Rg6+ Ng5 Rg1+ Bg2 d1Q Qd4 Qd2 Nb6 N6h5+ Kf2 Qc8 Rg7 Kd8 Rf7 Bh6 Bf1 Rg3 Ne4 Ng7 Rg1 h1Q Nd6 h2 Na3 Bg5 Re1 a1B Nc2 Qc6 Rb1 h1Q Rb3 Qh3 Ra8 Bf6 b8B Be5 Ba7 Qd5 Rb8 Bb2 Rf3 Ba3 Nb7+ Kc7 Ba5 Rc4 Bb4 Qc1 Rg2 Qg8 Kg1 Qg4 Kh1 Bd6 Qa1 Qdd2 Rg1 Be5 Na4 Bd6 Bd4 Bc5 Bf6 Bb2 Nb6 Be5 Na5 Bed6 Rb7+ Kd8 Qd4 Ngh5 Bh8 Ng7 Rc7 Be5 Rc6 Bc7 Re6 Bb8 Ree3 Bc7 Rb3 Be5 Qf2 Qh3+ Qh2 Qe3 Rg2 Bed4 Nb7+ Kc7 Ra3 Qed2 Rab3 Bg1 Rgf2 Qg4 Qg2 Bh2 Qg1 Qh3 Rg2 Nf6 Qd4 Nd7 Nd6 Kd8 Rg1 Qb1 Ndc8 Qb2 Nd6 Qbc1 Nb7+
Q1RRN2k/1r4rN/2nRrp2/n2q2B1/2b1N1Bb/b1BP1b2/1n4b1/1KB3b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 a5 g4 c5 e4 h5 e5 h3 g5 h4 g6 a4 g7 f3 b6 f2+ Ke2 c3 b7 a3 b5 f6 b6 Kf7 Bg2 f1B+ Ke3 c4 Qa4 a2 Qc2 h2 Bb2 h3 Qc1 c2 Be4 c3 Qd1 c1N Qa4 c2 Bc6 Bg2 Bd7 Nc6 b8B Na5 b7 Ba3 Nc3 Ra6 Ne4 Rh7 Bc3 Nd3 Bg4 c1B Nf3 Ne7 g8R Nec6 Rd1 Qd5 Rd8 Kg7 e6 h1B e7 h2 e8N+ Kh8 Bf4 Rg7 b8B Be6 Nfg5 Nb2 Nh7 Rb6 Bg5 Rbb7 Rb1 a1B Bbf4 Bf3 Rd6 Bhg2 Rd8 h1R Rc8 Nd3 Rb6 Nb2 Ra6 Qd7 Raa8 Bc4 Rd8 Qd5 Rac8 Nb3 Qa8 Nba5 Kf2 Rh5 Ke1 Rh4 d3 Be3 Rc1 Bf2+ Kd2 Rh5 Kc2 Bh4 Nf8 Rhh7 Kb1 Rbe7 Rd6 Re6 Rcd8 Rb7 Rc2 Rhg7 Bc1 Nd1+ Bb4 Bd4 Nh7 Nb2 Bc3 Bg1 B3d2 Bb3 Rc5 Bc4 Bc3 Nb8 Rc7 Nbc6 Rcc8
1rN1b3/R1bn2Qb/3p1PNn/r2n3K/3RbB2/k6B/qb2R2b/1rNB2B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 a5 f4 e5 b4 Ke7 c4 Kd6 g4 h5 b6 d3+ Ke3 h3 b7 h2 g5 d2 f5 a4 b5 Kc5 b6 Kb4 c5 h4 f6 a3 g6 h3 c6 a2 c7 Bd6 g7 Ra5 Bb2 Nh6 Ke2 e3 Kf3 e4+ Ke2 Qg8 Qc2 d1N Nf3 Qf7 Rg1 h1B g8B h2 Bd4 Bf4 Nbd2 Ka3 Rg2 Nc3+ Ke1 e2 Kf2 e1R Nh4 e3+ Kf3 e2 Ng6 Bd6 Bg1 Nd5 Nb3 Rb1 Nc1 e1B Qe4 Bh4 Qe7 Bg3 Be2 Qe6 Qg7 Bde5 Bd1 Bb2 Be3 d6 Bf4 Bd7 c8N Be8 Bf7 Nd7 b8R Bd4 b7 Bb6 Ra8 Bc7 b8B Rf8 Ba7 Rh8 Bae3 Rg8 Ra7 Rf8 Ke2 Rh8 Rf2 Be4 Rg2 h1B Bg1 Bc2+ Kf3 Bh2 Bg8 Rb8 Rb1 a1B Rb4 Bb2 Rd4 Bb1 Nh4 Bh7 Ng6 Nc3 Bf7 Qa2 Be6 Nd5 Bh3 Rf8 Nd3 Rf7 Nc1 Re7 Ra8 Re1 Ra7 Nf5 Kg4 Nh6+ Kh5 Rf1 Re2 Be4 Bc2 Rd1 Nb3 Ra1 Nc1 Rb1 Bd1
2r3bN/1B3Bq1/2Pp1r2/b1QR1n2/1nbRN1Nk/Kb4R1/5b1q/b1B3Bb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 c4 Kf6 Kc2 Kg5 Kb3 a5 e4 f5 c5 g3 h3 a4+ Kb4 g2 b6 d3 b7 d2 b3 a3 e5 f3 e6 a2 e7 f4 e8B f2 Bh5 f3 Bb2 Qf6 Ba6 f1B Bc1 f2 Nc3 Nc6+ Ka3 Nge7 b8R Rh6 b4 Bc4 b5 f1B b6 Kh4 b7 g5 Bf7 g4 Ne4 g3 Qc2 Nb4 c6 d1B Qc3 Bcb3 Qc5 Qg7 Rb1 Bbc4 Rb3 a1B Rd3 d6 Rd5 Be6 Rc8 Ba4 b8B Nf5 Bb7 Bab3+ Ba7 Be7 Rg8 Rc8 Rd4 Rg6 Rd5 Bd8 Nf3+ Kh5 h4 g1B Ne5 g2 Bb6 Bf2 Ng4 g1Q Rh3 Bfd3 Rg3 Qh2 Rd4 Be2 Re8 Bed5 Re5 Bf3 Ba7 Be6 Red5 Ba5 Ne3 Kh6 h5 Rf6 Bb6 Bh1 Ng4+ Kh7 Be8 Bf7 h6 Kg6 h7 Kh5 h8N Kh4 Ba7 Bg8 Bf7 Bb5 Bb6 B5c4 Rd2 Nh6 Qb5 Be1 Bg1 Bf2 Qc5 Nf5 R2d4
bbNNR1r1/1R4BB/K1P5/1r2R1n1/Q1r1N1b1/3r1pkB/1r1b4/n1Bq2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 e4 Kh4 b4 f5 e5 a5 e6 d5+ Kb3 g5 Ka4 f3 c4 d3 e7 d4 e8B d2 h3 f2 b6 g3 Kb5 a4 c5 a3 b7 a2 c6 g4 Bc4 f1R Bh5 f4 Bd3 g2 Na3 g3 Bf7 Ra5+ Kc4 Nd7 b8B Nc5 b5 Bb7 b6 Bh6 Kb4 Nf6 Bh7 d3 Nc4 Nb3 Be6 Ba8 b7 Rf2 Nd6 Rg8 Nc8 Ne4 Rb1 a1R Be5 Ng5 Ne2 g1B b8R g2 Ng3 Bh2 Ne4 g1B Bg7 Rb5+ Kc4 Ra2 Rb2 Na1 Qa4 d1R Rb7 f3 Re2 d2 Bd7 Rab2 Bdf5 Kh5 h4 Bb8 Bh3 Rg2 Rh2 Rg4 Re3 Rf4 Rhe2 Qd6 Bg2 Kg4 h5 Re1 Bf1 d1B Bg2 Rf1 Bh3+ Kh4 Re1 Bc2 R1e2 Rd1 Re1 Nf7 R3e2 Bg5 h6 Rd3 Re3 Rg4 R3e2 Bd2 Re3 Rh5 R1e2 Ng5 Re1 Ra2 Kb5 Rb2+ Ka6 Rf4 Nc5 Kg3 Re8 Bb3 R1e5 Be6 Ne4+ Kh2 Bg6 Bg4 h7 Qd7 h8N Qd5 Nf6 Kg3 Bh7 Qb3 Nf7 Qd1 Nd8 Rc4 Re2 Nf7 R2e3 Rhb5 R3e5 Ng5 Ne4+
bbbQB2b/RN2k1Bn/n2R4/2N4r/1q1b3b/BR1p1N1P/KB2rq2/6q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 g5 c4 d5 Kc2 f5 Kb3 d3 e4 g3 e5 g2 e6 a4+ Kb2 g4 b6 a3+ Ka2 f3 h3 f2 e7 d4 b5 d2 b7 d3 b6 f4 c5 g3 c6 f3 c7 Nf6 Qe2 d1Q Bh6 Qd4 Nc3 Na6 b8B Qb4 b7 Nh7 Ne4 Kd7 e8N Bd6 Qe1 Ke7 Be2 f1B Nc5 f2 Nf3 g1B Bg7 g2 Ba7 Bgh2 b8B Bdg3 Nd6 g1B Ndb7 Bh4 Rb1 Bf4 Rb3 Bg2 Qc3 f1Q Qd4 Qf2 Qd8+ Kf7 Bb2 Re8 Bg7 Re5 Rh2 Rh5 Bb2 Bh1 Rg2 Be5 Rg6 Bh8 Bb6 Bh2 Rd6 Qdg1 Ba5 Qe4 Bac3 Qb4 Bg7 B2g3 Qg8+ Ke7 Qd5 Bd7 Ba7 Re8 c8R Be6 Ra8 Bc8 Bb6 Bf4 Ra7 Bfg3 Rc6 Bb8 Bc7 Bg2 Bf4 Bh1 Bfc1 Bg2 Rd6 Bh1 Ka1 a2 Ba3 Bg2 Kb2 a1B+ Ka2 Bd4 Bcb2 Bh1 Qg5+ Kf7 Qd8 Bg2 Nh2 Bc6 Bg4 Re2 Nf3 Be4 Bd7 Bd5 Na5 Ba8 Nab7 Bg5 Qa5 Ke7 Be8 Bh4 Qd8#
1B2R2n/1Nrr4/B2Nb3/RbB2b2/4r1rp/1b1P4/2kqRnNb/KB3n1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Ke7 e4 Kf6 g4 Ke5 g5 Kd4 b6 h5 b5 f5 g6 c5 g7 a5 e5 a4 e6 a3 e7 h3 e8N h2 b7 h4 b6 c3 Bb5 f3 Nf6 a2 Bb2 c4 Nd5 Kd3 Qa4 c2 Qa5 c1R+ Kf2 f4 Ne7 Rd1 Ba4 c3 Bb5+ Kc2 Bd7 Na6 b8B Nc5 b7 Nh6 g8B Nf7 Bg4 Be6 Qa3 Ra4 Nh3 Re4 Nf5 Bd6 Re1 h1B Kf1 f2 Qa8 Nd3 Be2 Bf3 Bc1 Bg4 Ba3 Bc7 Nd6 Bgf5 Bc5 Rh6 Bb4 Rg6 Bc5 Nh8 Bf7 Rg4 Na3+ Kb3 Nab5 c2 Bg8 c1R Bf7 Kc2 Bg8 Ne5 Bc4 Nd3 Bf7 Rd4 Ke2 f3+ Ke3 f1B Re2 f2 Nf4 Bh3 Ng2 f1B Bg8 Bd5 Bf7 Nf2 Be6 Rdf4 Bc8 Ne4 Kd4 Bf7 Bd5 Qg5 Kc4 B7e6 Kb4 Nf2+ Ka3 Re4 Bb3+ Kd3 Kb2 Qd8 Rb1 a1N Ba2 Nc2 Ra1 Bf7 Bae6 Qg5 Ra5 Ne3 Ba2 B7e6 Na7 Qh6 Nc6 Bb3 Nd8 Rcc4 Bba7 Qf4 b8R Qg5 N8b7 Rc3 Ne8 Bh2 Ned6 Qf4 Bd7 Rcc1 Bb5+ Rcc4 Re8 Be6 Ka3 Kc2 Ba6 Bf5 Bb8 Rc3 Re1 Bb5 Re2 Nf1 d3+ Qd2 Bb6 Rc7 Bd4 Rd7 Bc5 Bg8 Bc4 Rb1 Ka2 Rb4 Bd5 Rbc4 Ka1 Rc3 Ba2 Bb3 Bb4 Rc8 Bc5 Rcc7 Rf8 Re3 Nd8 Rc4 Re8 Bg6 Nf4 Be6 Qh1 Bgf5 Ng2 Rg4 N8b7 Ree4 Bb1+
2n1rn1n/Q2N3B/3b1N1b/2qbNrb1/P1qB2R1/1B1R4/K1p1kB1b/5R1b b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 a4 Ke7 h4 Ke6 e4 f5 d4 c5 Kd2 g5 Kc2 b5 Kb2 f4 h5 g3 h6 c3+ Ka2 c2 h7 c4 Bd2 c1B Rh2 g4 Re2 f3 Rh2 g2 Qb3 f2 Rh4 g3 Na3 Nd7 Rh2 Qb6 Bh6 Qc5 Ne2 g1B Qc2 c3 Rg2 b3+ Kb1 b4 Qb2 Ne7 Bd2 Bh6 Be1 Re8 h8B Ng6 Bf6 Nh8 Nc4 Nf8 Nb6 Bcg5 Nc1 Bh2 Nd7 Ra5 Bd3 f1Q Qf2 b2 Ka2 b1N Rg1 c2 d5+ Kf7 d6 Kg6 e6 Kh5 e7 Kg4 e5 g2 e6 Bb7 Bh7 Na3 Bfc3 Nb5 Bd4 Na7 Nd3 Nc8 Rb1 Bf3 N3e5+ Kf4 Rc1 Qd3 Rf1 g1B Rb1 Qe2 Rb3 Bg3 Rd3 B1h2 Qg1 Qe4 Bef2 b3+ Kb2 Rd8 e8B Bh1 Bf7 Re8 e7 Qe2 Ka1 b2+ Ka2 Qe4 Bb3 b1B+ Ka1 Ba2 Kb2 Rd8 e8N Qec6 Nef6 Re8 Qg2 Q6b5 Qb7 Qbb4 Qa7 Qbc4 Nb6 Rb5 d7 Ra5 d8R Rb5 Rd2 Ra5 Nbd7 Rb5 Neg4 Kf3 Rd3+ Ke2 Ka1 Bd6 Nge5 Qb6 Rg3 Rd5 Rg4 Qbc5 Nf7 Rf5 Nfe5 Qa6 Bbg8 Bad5 Be6 Bde4 Bb3 Bd5 Ka2 Nb6 Rb8 Nc8 Rb4 Qd3 Rc4 Qe4 Rc3 Qf4 Rd3 Qe4 Bde3 Qec4 Bd4
4N2n/1BR1B1k1/b1Rb1Nr1/3BRpqQ/2rnNB1P/3r2nb/1br2b2/1K6 b - - 0 1 illegal: No possible last move, all moves rejected
4r1rN/B2k1rR1/1b3Q1r/RN2P3/nB1b1b1q/3bB3/1R1np1b1/KBNn4 b - - 0 1 illegal: No proof kernel
1q1b3n/1RNn3b/Nr2pQ2/rr6/N3n1n1/q1n4B/2PkB1RR/1B2Bn1K b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 g4 Kf7 a4 Kf6 f4 h5 Kf2 d5 Kg2 b5 a5 b3 a6 d3 a7 d4 Ne2 h3+ Kg1 b4 Nd2 h4 Kh2 b2 Ra5 b1N Ra3 b3 Rg1 b2 Rh1 Nh6 Rc3 Nf7 Ng1 Rh5 Ne2 Nd7 Qe1 Nh8 Nb3 d2 Nc5 d1N Bd2 d3 Rb3 Nf2 Rb7 Nc3 Qa1 b1R Na6 Ne4 Be1 d2 Bg2 Rb8 a8B d1N Rg1 Qe8 Kh1 h2 Bh3 Ne3 Rg2 Rb6 Qb2 Nf1 g5+ Kf7 f6 Kg6 f7 Rb5 Ra7 R8b6 Rb7 Bg7 f8R Bf6 Rf7 Qg8 Rh7 Qa2 Nd4 Qa3 Nb3 Ra5 Nbc5 Rab5 Rg4 Kf5 g6 Rg5 g7 Ra5 Kg2 h1N g8B Nhf2 Ba2 Rab5 Rg3+ Ng4 Na4 Rh5 Bb1 e6 Nc7 Bd8 Kh1 Rg5 Rg2 Ra5 Ra7 Ba6 Rb7 Bd3 Rh6 Nec5 Rh5 Ke4 f5 Ke3 f6 Bh7 f7 N5e4 f8N Rgb5 Rh6 Na2 Qf6 Nac3 Na6 Rh5 Ng6 Rhb5 Rg3+ Ke2 Ne7 Kd1 Nd5 Ke2 Bg2 h3 Ndc7 h2 Bh3 Kd1 Rg2 Kc1 Bf2 Kd1 Rh5 Kd2 Be1+ Kc1 Ra7 Bg8 Ne8 Nec5 Bf3 Ne2 Rb7 Nc3 Bd1 Bh7 Be2 Nh6 Bf5 N5e4 Rg4 Nd6 Kg2 h1Q+ Kf2 Qc6 Kg1 Qc8 Kh1 Nde4 Rg2 Qc7 Rhh2 Qb8 Bh3 Ng4 Bg3 Kd2 Nec7 Na2 Bf2 Nac3 Be1+
1R1q2nb/KB3b1B/B2p4/4r1N1/2Q1PbR1/1N1k2b1/b1nnNn1r/R3B1r1 b - - 0 1 illegal: No possible last move, all moves rejected
n1r3Nk/bK1NbP1r/4B2r/1R2n1B1/2bNR3/4n1b1/r1q3pN/b3RQB1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 a5 h4 d5 f4 e5 b4 g5 c5 Kg7 f5 e3 Kd3 a4 h5 a3 c6 a2 c7 e4+ Kc2 d3+ Kb3 d2 b6 g3 b7 g2 b5 g4 b6 d4 Kc4 d3 Kb5 e2 Rh4 e1B Bb2+ Nf6 Qc1 d1R Nc3 e3 Qb1 e2 Nf3 g1B Nh2 d2 Bc1 g3 Bh3 g2 Re4 Be6 c8N Nd5 Ne7 Qc7 Ng8 Rh6 f6+ Kh8 f7 Nd7 b8N Bg3 b7 e1R Ne2 Ba7 Ka6 Be7 Nd4 Ne5 Nd7 Rh1 b8R Qc2 Rb5 Rc8 Kb7 Nb6 Bg4 Rh7 h6 Na8 Bh3 Bc4 Be6 Qb2 Qd3 Qc2 Qf1 Re1 Rab1 d1N Bg5 Ne3 Rc1 Re2 Re1 Rg7 h7 a1B Nf5 Rg6 Nd4 Rh6 Ng4 Kg7 h8B+ Kh7 Bg7 R1h3 Bf8 Kh8 Nh2 Rh7 Rg4 R3h6 Re4 Bd8 Bb4 Be7 Bd6 Qb1 Bc5 Ra2 Nb3 Qc2 Bd4 Nf5 Bg1 Ne3 Nd4
1B1n2q1/5P1r/1RN1rRq1/3B3b/6qq/Kpn3Q1/RNqbkBqN/5Nn1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 Kg6 Kc2 Kf5 Kb2 c5 a4 e5 f4 b5 g3 h5 d6 h3 d7 b3 d5 h2 d6 c4 a5 c3+ Ka3 b4+ Ka4 e3 g4+ Ke4 a6 c2 f5 h4 f6 b2 g5 h3 a7 b3 f7 e2 g6 e1Q g7 Qe2 Ra2 Ne7 g8R Nd5 Bd2 Kd3 Ra1 c1Q Rg2 e4 Qe1 e3 Qh4 Nc6 Qg3 Qc2 Be1 Bh6 Ra2 Nc3+ Ka3 Rh7 Nf3 Qg8 d8N Bg4 d7 Bh5 Nbd2 b1Q Rf2 Bg5 Rg1 h1Q Bg2 h2 Nf1 Rb8 a8N Rb6 Nc7 Qed1 Ne8 e2 Nd6 Bf4 Nc4 Bd2 Ne6 Nd8 Ned4 Rg6 Nc6 Re6 Nb2+ Ke4 Bh3 Qg2 Bg4 h1Q N3h2 Qg6 Rf5 Qg8 Bf2 e1N Rf6 Qdf3 Bh3 Qf5 Bg4 Nf3 Bh3 Qbd1 Bg4 Qfg6 Bh3 Nb7 d8B Qe2 Ba5 Nd8 Bc7 Qc4 Bb8 Qe2 Na4 Kd3 Bg4 Qee4 Nb2+ Ke2 Bf5 Qeg4 Be4 Q2h3 Bd5 Qhh4 Ne3 Qg2 Rd1 Ng1 Nef1 Be3 Rd4 Bf4 Rb4 Bd2 Rb6
1Rr2n1K/q7/1kB2Q1R/n1br2pR/4q1RN/1r2B1Pb/1N2n2n/N2B2rr b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kf2 b5 axb5 h5 Ke1 h4 Qd3 h3 Qf3 Rh6 Qf2 Rh8 Qg2 hxg2 Kd2 g5 Kd3 f5 c4 a5 e4 d5 h4 Kd7 b4 Kc7 c5 a4 b6+ Kc6 h5 a3 b5+ Kb7 h6 f3 h7 a2 e5 f4 e6 f2 e7 f3 e8B Bg4 Be2 f1R Na3 f2 Nc2 Nd7 Nf3 g1N Rh6 Rc8 Nh4 Ne7 Bd1 Nc6 Be3 Bh3 Rb1 a1Q Rb4 Qa5 Na1 Ne2 Ra4 Rg8 h8Q Rh1 Qf6 Qa7 Rb4 Na5 c6+ Ka8 c7 Kb7 Rc4 f1N Rb4 Rb8 c8N Qe7 Rc4 Nh2 Nd6+ Ka8 Ra4 Rh8 Nc4 Kb7 Nb2 Qe4+ Kd2 d3 Rh5 Qh7 Rg4 Bc5 Rh6 Nf8 Bc6+ Kc8 b7+ Kc7 Rh5 d4 Rh6 Rc8 b8R Qe4 Rb6 Rh7 Rh5 Rd7 Ra6 Rd5 b6+ Kb8 b7 Kc7 b8R Rg1 Qf1 Rh1 Ke1 d2+ Kf2 d3 Bd4 Qh7 Ke3 Rg1 Qf6 Qg6 Bda4 d1R Rab6 Rde1 Bd1 d2 Ra6 Ref1 Rab6 Rff5 Ke4 Rh1 Be3 Rg1 Bda4 d1R Bc2 Rde1 Bd1 Rd3 Ra6 Rb3 Rab6 Rh1 Ra6 Reg1 Rab6 Rf4+ Ke5 Rd4 Ra6 Nh7 Ke6 Qe4+ Kf7 Nf8 Kg7 Rd5 Kh8 Nb7 Ra4 Kb6 Rd4 Rf5 Rd7 Re5 Rdh7 Rd5 Ra8 Na5 R7h6 Rcd8 Rc8 Re8 Ra8 Rc8 Rb8+
1rRqqn1R/N7/2r5/1brPkq1N/1B2BNp1/n3Qq2/Kb2r2B/2qR3N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 d4 g5 Kd2 c5 Kc2 f5 Kb2 a5 h4 g3 b6 g4 d5 g2 b7 c3+ Ka2 a4 h5 a3 b5 f3 b6 c2 h6 f4 h7 c4 Qe1 f2 Ne2 g1Q Nd4 f3 Nc3 Ke5 Ne6 Nh6 Bd2 c1R Qd1 Ra6 Qe2 Nd7 b8N Nf5 b7 Ne3 Qd3 Nc2 Rh3 Bg7 Nf4 Rc6 Bg2 f1Q Rh4 f2 Qe3 Nf8 Nce2 c3 Ng3 Bd7 Nh1 Qd3 Rh6 f1Q Be1 Rc5 Rc6 Qf3 Rc8 Bb5 Rb1 Rg8 h8R Qh2 Ra1 Qh5 Rb1 Qhe8 Nc6+ Kd6 Na7 Ke5 Bd2 Re1 Rd1 Re2 Kb3 a2 b8B+ Kf6 Bc7 a1Q e5+ Kf5 e6 Na3 e7 c2+ Bc3 Qc1 Ka2 Qde4 Be1 Bb2 Bb4 Kf6 Bd6 Qf5 Bb8 Qf1 Be4 Qf3 Nh3 Rc6 Bh2 Rc5 Nf4 Ke5 Kb3 Rg6 Ka2 Rb6 Rd2 Rb8 Rd1 Qeg6 e8N Qgh5 Ng7 Qhe8 Bd3+ Kd6 Rg1 Qcf1 Nf2 c1R Ba5 Rc7 Nh1 R1c5 Bb4 Qc1 Rd1 Rc6 Be4 Ke5 Ngh5
R4N1N/1Bb1Rn1N/q3bPr1/kn2b2n/1pbB4/1r1Q4/n3q1n1/K2RNB2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 Kd2 c5 Kc2 Kc7 Kb2 Kb6 g4 h5 a4 e5 f4 h3 g5 h2 d6 e3 d7 e4 g6 c4 f5 e2 d5 e1B g7 e3 f6 c3+ Ka2 c2 d6 h4 Qd3 e2 Qd4+ Ka5 Bd2 c1N+ Kb2 b5 Qc3 h3 Na3 Nc6 Ra2 Bg3 Bg5 e1N Ka1 Na7 Bd2 Rb8 Qc4 Qe8 d8N Be6 d7 Nh6 g8N Ng2 Nc2 Nf7 Nf3 Rh6 Qb3 Bfd6 Bc3 Rg6 Ng5 Bge5 Bd4 Bc7 Qd3 b3 Ne1 Qe7 Rb2 Na2 Re2 Qe8 Rg1 h1Q Ne7 h2 Nh7 Bc4 Ne6 b2+ Kb1 Qc8 d8R Qa6 Nef8 Rb6 Ra8 Rb7 Kc2 b1B+ Kb2 Bc2 Ka1 B2b3 Re3 Be6 Re2 Bbc4 Re4 b4 Re2 Nb5 Re3 Rg3 Neg6 Rb8 Nh8 Rh3 Nfg6 Rg8 Ngf8 Rg6 Re2 Nh4 Re3 Qg2 Re2 h1N Re3 Bed5 Re4 Qe2 Re3 Bf4 Re7 Ng3 Rh1 Nh5 Rg1 Qa7 Rh1 Ng2 Rg1 Ka6 a5 Be6 Rh1 Bfe5 Rg1 Kb7 a6+ Kc6 Rh1 Qb7 a7 Qa6 Bc3 Kb6 Bd4+ Ka5 Qg3 Ka4 Nf3 Qc2 Be2 Qb7 Rd1 Qc8 Bf1 Qe2 Ne1 Qa6 Qc3 Rd3 Qd2 Rb3 Qd3 Rg4 Rae8 Rg7 a8B Ka5 Bb7 Rg6 Ra8
1r1r1N2/1R3rbB/1p3k2/QRb3N1/qnrB3B/5n1P/2N2b1q/2rbRKR1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Ke7 e4 f5 a4 c5 e5 g5 e6 f3 h3 f4 a5 f2+ Ke2 f3+ Kd3 b3 d6+ Kf6 d7 b6 d5 g3 a6 b2 e7 g2 e8R g4 a7 g3 d6 c4+ Ke3 c3 Qd5 c2 Re4 Ne7 Bd3 f1R Nc3 b1R Rh4 f2 Ke2 Bg7 Qh5 Nbc6 Rb4 Qe8 d8B Bg4+ Nf3 g1B d7 g2 Be3 c1R Nd1 Ne5 Bh7 Rc4 Rb5 Rb8 a8R Rbc1 Bd4 Rf8 R8a3 Rf7 Ne3 Rfd1 Ra7 Rd3 Bc7 Nd5 d8N Nb4 Nc2 Qc6 Rb1 Qa8 Rb7 Qa4 Ne6 Rdd1 Bc3 Rdd8 Bd4 f1Q+ Kd2 Nc6 Nf8 Nb4 Ng5 Bd1 Bd6 Qf5 Ke1 Qf4 B6c5 Be3 Rg1 Qh2 Ra1 Bf4 Bf2 Be3 Bh4 Bd4 Rh1 g1B Kf1 Bgf2 Rg1 Bc3 Be3 Bd4 Rb1 Bc5 Bd4 Be3 Rb3 Bf2 Re3 Bh6 Re1 Bg7 Qf3+ Qf4 Qa3 Qh2 Be3 Nf3 Qa2 Qb3 Qa5 Qa4 Bd4+
r2b1r1q/3N1r1b/Rp4k1/1n5b/1BBbNB2/qr2QP2/bR2R1n1/N1K3R1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kf7 d4 h5 Kd2 e5 a4 c5 d6 b3 a5 c4 d5 c3+ Ke1 b2 g5 b6 d7 h3 a6 e3 a7 c2 d6 h4 Ke2 e4 Ra6 h2 Na3 b1B Ke1 h3 Be2 Bg7 Nf3 Ba2 Ra4 Nh6 Qd2 Bd4 Ra6 Nf5 Bb5 e2 Ra5 Nc6 Bc4+ Kg6 Qe3 Nh4 Kd2 e1R Rg1 h1B Rb5 h2 Rb2 Qe8 d8R Rf8 Rd7 Rf1 Re7 Bf5 d7 Ng2 d8B Rf7 Bc7 Qh8 Bd6 Bg4 Bb4 Bh5 Ne1 Rff8 Nd3 Rf7 Nc5 Rff8 Qb3 Rf7 Nd7 e3+ Kd3 e2 Bf4 c1Q Nc2 e1B Na1 Bec3 Ree2 Bf6 Qa3 Bd8 Qb3 Qe3+ Kc2 Bd4 Qc3 Qf3 Qe1 Qa3 Kc1 Rb8 a8R Na7 Nf6 Nb5 Ra6 Ra8 Nd7 Kf5 g6 Rf8 g7 Kg6 g8N Rf7 Kc2 Rf8 Qc3 Rb1 Kd2 Rf7 Rc2 Rb3 Ngf6 Rf8 Be5 Kf5 Rgc1 Ne3 Qd3+ Be4 Rb2 h1R Rce1 Rh3 Kc1 Rf3 Rg1 Ng2 Qe3 Rf4 f3 Kg5 Bc3 Bh7 Ne4+ Kg6 Bb4 R4f7 Bf4
2R2KN1/4pB2/Nq1Bq3/4PkbR/bq1R1qN1/1rbr2nB/nb5Q/qR6 b - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 f4 d5+ Kf3 a5 b4 g5 c4 g4+ Kg3 d3 Kh4 d2 Kg5 g3 Kg6 h4 e4 a4 b6 h2 b5 a3 e5 g2 b7 a2 c5 d4 b6 h3 c6 d3 c7 Nc6 b8R Nf6 b7 Bh6 Nf3 g1B Na3 Nh5 Ne1 Nb4 Qc2 d1Q Nf3 d2 Nb5 Bd7 c8B Ra3 Nc3 Qe1 Ne4 d1Q Bc4+ Qd5 Nf6 Qb6 Rb1 a1B Ng8 Rb3 Ba3 Na2 Bd6 Ng3 Qd2 Bg5 Kg7 Bc5 Kf8 Kf5 Ra8 Rh7 b8N Qe6 Ra4 Ba3 Na6 B3b2 Bd5 Bc3 Rd4 Ba4 Qf2 Bab2 Qc2+ Kg4 f5+ Qe4 f6 Kf5 Qf2 Qf4 f7 Rh4 Rhe1 h1Q Nh2 Qf1 Ng4 Qfb5 Rh1 Qb4 Qh2 Rh8 Kg7 Rh6 f8R+ Rf6 Re8 Rh6 Kf8 Rh4 Qg1 h2 Rd8 Rh3 Re8 Qd7 Bf7 Qe6 Bd7 Ne2 Rc8 Rd3 Bc6 Ng3 Bg2 Re3 Bh3 Rf3 Qf2 Rd3 Rhd1 h1Q Qh2 Qhe4 Rh1 Qe2 Rbg1 Qd1 Rf1 Qa1 Re1 Qd2 Rb1 Qf4 Bf1 Qd5 Qd2 Q6a5 Rh5 Qab6 Qh2 Qe6 Bh3
rq2Q2k/qP4Br/3N1n2/1n2qb1B/qnnpB1R1/8/1b2R3/NNB1K1Rn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 a5 g4 f5 b4 Kf7 c5 Kg7 b6 h5 e5 a4 c6 d3 g5 d2+ Ke2 h3 g6 a3 e6 f3+ Kf2 h2 b7 h4 e7 f4 e8B d4 b5 h3 b6 a2 c7 Ba3 Ba6 Nc6 b8B Nf6 b7 Bb2 Bb5 Bf5 c8N Rh7 Ba6 Nb4 Be5 Kh8 Qb3 d1N+ Ke1 Nc3 Qf7 Nb5 Nd6 Qb8 Ne2 Qa7 Rf1 h1Q Rg1 h2 Bc6 Qg2 Be4 Qg5 Rg2 h1N Rf2 Qh6 Qe8+ Qf8 g7+ Kg8 Rg2 f2+ Kd2 f1N+ Ke1 f3 Bef4 Rh8 Bh6 Ne3 Rg1 Kh7 g8R Nc4 R8g4 Qe7 Bf8 Qe5 Nd2 Qb8 Nc3 Qa7 Rb1 a1Q Nb3 Qa4 Ra1 Qb8 Ra2 Qa7 Na1 f2+ Ke2 Qb8 Nb1 Qa7 Bg5 Kg8 Kf1 Rh7 Bc1+ Kh8 Ke2 Ba3 Rc2 Bb2 Kf1 Qb8 Re2 Nc7 Bb5 Qba7 Bd7 Nb5 Be6 Qb8 Bf7 Qaa7 Bh5 Qa4 Re1 Qaa7 Ke2 f1Q+ Kd1 Qh3 Re2 Qha3 Ke1 Q3a4 Bg7#
R4n2/Pbn5/1nrB1B2/q1Q2B1r/k3p2R/Rb2K1N1/1b1N1N1n/q1n1R1b1 b - - 0 1 illegal: No possible last move, all moves rejected
qNRR1r2/pB2n1NK/b1R4b/2b3Bq/q3Q1qP/Br6/2n1kNq1/2b2R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 h4 d5+ Ke5 g5 e4+ d3 b4 f5 b6 d4 b5 f3 b7 g3 b6 f4 c3 f2 Qg4 g2 Ra2 f3 Rb2 Bh6 Rc2 Na6 b8R Nb4 b7 Ne7 Ne2 g1B Kf6 d2 e5 Kd3 e6 d1Q Bg2 f1Q c4 Be3 c5 f2 c6 Qg1 Ba3 Bc1 c7 f1Q+ Qf5+ Ke3 Nd2 d3 Ne4 g4 Nd4 d2 Rc6 g3 Nf2 Qh5 Qc2 d1Q Qe4+ Kd2 Bf3 Qh3 Bg2 Qgh2 Rf1 Qa4 Bh1 Q3g4 Bf3 Bg5+ Kg7 Rf8 Bh1 Bh6+ Kh7 Nc2 Bg2 Bd7 c8R Rf3 Bh1 Rb3 Bf3 Qde8 Rd8 g2 Rbc8 g1B b8B Qhg2 Bf4+ Ne3 Bg5 Qf8 Rd6 Bb5 Nc6+ Bd3 Nb8 Qfe8 Bf6 Nc2 Rdc6 Qf8 Nh1 Bc5 Nf2 Nd5 e7 Ba6 Qc4 Ke3 e8N Ne7 Ng7 Qfe8 Qd5 Qf8 Be4 Ke2 Bg5 Qff3 R6c7 Ng8 Rdd7 Rb5 Re8 Ra5 Nc6 Rd8 Nb8 Ne7 Rd6 Rb5 Rc8 Rb3 Re6 Rd6 Red8 Rc6 Rg6 Rf6 Qd4 Rf8 Ba8 Qb7 Rgc6 Bb6 Qe4+ Bbe3 Nd7 Qb8 Bb7 Qa8 Qd5 Bb6 Nb8 Bc5 Qe4+
1k4NN/BrN4q/2Kn2b1/1B2Rq1b/5R2/qNQn2q1/1b1r1PpR/2b3Bn b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 d5 c4 Kd7 b4 Kc7 h4 a5 h5 g5 h6 e5 c5 g3 c6 e3 Kd3 g2 h7 e2 Rh2 e1B Qh5 g4 Nh3 g1Q Be2 a4 Qg6 e4+ Kc2 d3+ Kb2 g3 Ka3 e3 Bg4 e2 Qf6 d4 Nd2 Ra7 Qf5 Ne7 Rg2 Bg7 Bf3 Na6 b6+ Kb8 b5 Nc5 Kb4 a3 b7 a2 Qh5 Nf5 Qg6 Qg8 Rh2 Ne4 Nf4 Nfd6 Qf6 Bf5 Nd5 Bg6 Nc7 g2 Bg4 Qh1 Bd7 Ng3 Kc5 Qc8 Nb3 d2 Kd5 d1Q Bf4 d3 Qc3 Rd8 h8N Bd2 Be3 Qdf1 Re1 a1Q Qc4 Ra6 Ne8 Bc1 Rh6 Bgb2 Qc3 Rb6 c7+ Ka7 b8R d2 Ra8+ Kb7 Ra4 d1B Rd4 Nc4 Re4 Re6 Ba7 Re7 b6 Qa3 Rd4 Qh2 Rhh4 Qfh1 Rdg4 Qa8 c8N Rg7 Ne7 Qc8 Ng8 Re7 Rg1 e1N Rg5 Qh3 Re4 Q1h2 Rh1 Qh7 Rf5 Bdh5 Re3 Ka6 b7 Rg7 b8B Kb7 Ref3 Qh4 Rh3 Nh1 Bh2 Qg3 Bg1 Ka8 Rh2 Rf7 Be3 Kb8 R3f4 Re7 Re5 Rg7 Nd6 Re7 Be8 Qf5 Bb5 Rb7 Kc6 Rdd7 Ne8 Rd2 Bc5 Nd6 Nc7 Nd3 Ba7+
k5q1/2r3BQ/B1r2q1b/R6N/q1q5/1Rn1P2p/RrNnN1RB/K2b2nn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 b4 a5 c4 d5 Kc2 Kd7 Kb2 Kc7 g4 Kb7 c5 h5 e3 d3 b6 a4 g5 d2 g6 f3 g7 h3 b5 f2 Ne2 d4 Ng3 h2 Qe1 d1N+ Ka2 f4 Be2 f1R Bd3 f3 Qd2 f2 Ne2 h4 Bb2 h3 Qc1 a3 Nbc3 Rh7 Qc2 Bg4 Qb3 Ra6 c6+ Ka8 c7 Nf6 g8N Nbd7 Nb1 Ne4 Qc4 Bh6 Qf7 Nd2 Rg1 h1N Nf6 Qg8 Nh5 Ne5 Rg2 Nef3 Bc3 Ng1 b7+ Ka7 c8R Rc6 b8B+ Ka8 Bc4 d3 b6 Re1 Rd8 f1Q Rd5 Bf3 Qg6 Rhc7 Bg7 Bg4 Ba6 Qf4 Nd4 Re2 Nc2 Bf3 Qf7 Qd4 Rb5 Qc4+ Rb3 Bg4 Nc3 Rf2 Ne2 Bf3 Rc1 Nc3+ Ka1 a2 Ra3 Bg4 Ra5 Bf3 Neg3 Bd1 Ne2 Rf5 Qg6 Rb5 Qh7 Rb2 Rb1 Re7 Bf4 Rec7 b7+ Ka7 Nb4 Nf1 b8R Rb3 Rb2 d2 Rg6 Nb1 Rf5 Bc2 Bge5 d1Q Bg7 Nfd2 Bh2 Qf1 Ra5 Bd1 Rg3 Qf6 Nc2 Nc3 Rb4 Ka8 Rg2 Ndb1 Rba4 Rbb6 Rbb4 Rb5 Kb2 a1Q+ Kc1 Qaa2 Rb2 Qab3 Raa2 Qba4 Rb4 Rb8 Kb2 Nd2 Ka1 Rb5 Rb3 Rbb6 Rba3 Rb2 Rb3
2N1q1Qk/3qNnrB/q2R3b/1bB1n1B1/rB1rb1b1/1RKp1N2/P4rR1/8 b - - 0 1 illegal: No possible last move, all moves rejected
2n2rnB/1b1kRn2/1R4N1/Q1bq1B1q/3qqp2/1r3B1B/1R1N1P1r/1N1K1n2 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 c4 a5 g4 e5 d4 h5 g5 f5 b6 b3 c5 e3 g6 f4 d5 e4 g7 b2 d6 h3 c6 h4 b7 a4 c7 e2 Qd3 a3 Qe3 a2 Nf3 h2 Na3 b1R Qa7 h3 Nb5 Kd7 Kd2 e1N Na3 e3+ Kd1 Nd3 Qa5 Rb3 Nd2 Nc6 b8R Nde5 Rb6 Bb7 Nab1 Nf7 Bb2 Na7 Rg1 h1N Rg6 h2 Re6 Rh6 Bh3 Ng3 Bc3 Nc8 Bf5 Nf6 g8B Nf1 Bgh7 Ng8 Bh8 h1Q Bh3 Qg5 Be4 Qd5 Bf3 Be7 Bf5 Qh5 Bh3 Na7 Bf5 Rf8 c8B+ Kd8 d7 Bc5 Bh3 Kc7 d8N e2+ Kc2 e1Q Nc6 Qe3 Ne5 Qee4+ Kd1 Rh7 Bd7 Nc8 Ng6 Rh6 Re5 Rh7 Bdf5 Kd8 Ree6 Kd7 Nc3 Rh6 Rb1 Rh7 Rb2 a1Q+ Nb1 Qaa4 Qa7 Qad4 Qa5 Rg7 Nh4 Rg2 Ng6 Rh2 Re7+
B1r1R1Kn/B3bRn1/1BR2rq1/3BNq1b/Ppr3r1/7k/3Q1qN1/4q1Nn b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 d4 h5 a4 b5 d6 c5 d7 f5 Ke6 c4 Kf7 f4 d5 h3 e5 h4 e6 h2 g3 h3 e7 b3 e8B b2 d6 c3 Qb3 c2 Qc4 b4 Qd4 f2 Qd3 f3 Bd2 c1R Qe3 Nc6 Bc4 f1Q Na3 b1Q Nc2 f2 Ne1 Rh4 Ng2 Nge7 Bd5 Qb6 d8N Ng6 d7 Nd4 Nc6 Ne6 d8B Rc4 Kg8 Qf5 Rc1 Nh8 Bc3 Qa6 Qd2 Be7 Bb6 Ng7 Bcd4 Bb7 Ba7 Rc8 Bdb6 Qe2 Rc2 f1R Rc3 Rff4 Rc2 Qf2 Ne5+ Kg5 g4 Rh6 Ne1 Kh4 g5 Rf6 g6 Rg4 Ng2+ Kg3 Ngf3 Bc6 Rf1 h1N Ng1 h2 Rcc1 Bf8 Bef7 Be8 Ba8 Be7 Bfd5 Rcd4 Ne2+ Kh3 Rc7 Qad3 Rfc1 Qb1 R1c6 Rc4 Rb7 Ng3 Rd7 h1Q Rdc7 Qhe1 Ng1+ Kh2 Rb7 Nh1 Rd7 Ne6 g7 Bh5+ Rd8 Qg6 Rf8 Qbf5 Re8 Nc7 Rf8 Ne8 Rf7 Q5f3 Be4 Qh6 Bd5 Qg5 Kh7 Qff5+ Ng6 Kg3 g8R Ng7 Re8 Kh2 Kg8 Qh6 N6h4 Qhg6 Nhf3+ Kg3 Ne5 Kh2 Ne2 Kh3 Ng1+
3RnQ1R/Rr1nq3/bqBN2r1/n6N/p1B1bK2/P1Bkr2N/6N1/nb3b2 b - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 Bh6 g6 Bg5 hxg5 bxc4 Kf2 Kd7 b4 Kd6 d4 Kd5 a3 f5 g7 c5 g6 h5 b5 a5 b6 e5 b7 h4 Be2 f3 Ke3 f2 Qd3 f1B Qd2 c3 Bb2 c2 Bf3 Kc4 d5 c1N d6 h3 d7 f4+ Kf2 h2 Qe3 a4 Qe1 Kd3 Ra2 c4 Bd1 e3+ Kf3 e4+ Kg4 c3 Nh3 c2 Nc3 f3 Qg3 e2 Nb1 e1Q Qf4 e3 Kf5 f2 Bc3 e2 Rb2 Nb3 Nd2 c1N Ne4 Na1 Nd6 Nf6 g8B Ra6 g7 Rh7 Be6 Rc6 g8N Qb6 d8N Nbd7 b8R Ne8 Nf6 Ba6 Nh5 Ncb3 Bd5 Na5 Ne6 Bg2 Rd8 f1B B1b3 Be4+ Kg4 Bg6 Qf8 Qh4+ Kf3 Qe7 Kf4 e1R Rg2 Be4 Rg7 Re3 Rf7 Rg7 Ba2 Rc7 Bc6 Rg6 Rh7 Rb7 Rh8 Ke2 Bc4+ Bd3 Rg1 h1B Rg5 Bd5 Rf5 Be4 Rf7 Qd4 Neg7 Qb6 Ngf5 Qc7 Nh4 Qb6 B4d5 Bb1 Ng2 Kd3 Bb3 Qe6 Re7 Nb8 Rc7 Qe7 Bg8 Nd7 Bb3 Rb8 Ra7 Rb7 Bc4+
rB1n1NNk/2KbN3/8/R1bb1bP1/1B4n1/4q1RR/Q2pq1r1/1Bq2Nnn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 f5 g4 Kf7 e4 Kg7 c4 a4 b4 a3 b6 h3 g5 h4 c5 a2 b5 h2 c6 d3 b7 f3 b6 f4 c7 f2 Qc2 d4 Qc6 h3 Qe8 f3 Nc3 d2 Nb1 d1N Qa4 d3 Nd2 Bf5 c8N Nh6 Ne2 Nc3 Nd4 Qe8+ Ne7 Nc6+ Kd6 Nd8 b8B Ne2 b7 Ng1 e5 Ng4 e6 Rh5 Bg2 f1B Kc7 f2 Ba3 Kh8 Be4 Rh6 Ng8 Bc5 e7 Rb6 Qa6 Rb2 Bb4 Be2 Qa5 f1Q Ne6 Qf2 Nf8 Qe3 Nf1 Bd7 Rd1 a1Q Qa2 Qac1 Rd2 Bd1 Rg2 Bc2 Rg3 Bb1 Bh7 Rg2 Bf5 Qh5 e8R d2 Re5 Be4 Bg6 Bd5 Bd3 B5e6 Bb1 Bf5 Ba7 Qe8 b8N Qe2 Rd5 Q8e3 Nc6 Nf3 Rg1 h1N Nce7 h2 Bb8 Q3d3 Ne3 Qe4 Rd1 Ng1 Nf1 Q4e3 Rd3 Nhf2 Ra3 h1B Ra6 Rh2 Re1 Bd5 Ra5 Nh1 Rd1 Qca3 Rc1 Rg2 Rc3 Qc1 Nh7 Qe6 Rh3 Q6e4 Rcg3 Q4e3 Nf8+
1q3q2/1NB1rN2/q1R2r2/2p1Nn2/nrBNQ3/rR3BR1/k1P2Kn1/1n1b3b b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Bg2 Bh6 Bh3 fxg4 Bf1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bf5 Ne2 Be6 Ng1 Bc8 f4 Kd7 d4 Kd6 a4 h5 g6 b5 a5 e5 f5 g2 f6 e3 a6 g3 d5 Kc5 a7 e4 d6 e2 g7 h4 d7 h3 f7 h2 f8R b3 Rf2 Kb4 Rf5 c5 Nc3 b2 Rf8 b1R Nf3 g1Q Ra3 g2 Rf5 Nh6 g8N Qf2+ Kd2 g1Q Bg2 e1R+ Qe2 e3+ Kd3 Qgf1 Rg1 h1B Rf7 Nf5 Rf8 Rh6 Ke4 Rf6 Qd3 e2 Nh6 Qb6 d8N Nd7 Bf4 Qb8 Bh2 Nb6 Ne5 Na4 Nb7 Be6 Qe3 Bf7 Re8 Bh5 Nhf7 Qf3+ Kd3 Qc6 Be4 Qa6 Re6 Qf4 Rg7 Qh6 Rg3 Qhf8 Rc6 Rb2 Ra2 Rb3 Rb2 Ka3 Bd5 b4+ Kd2 B5f3 Rb1 Bg4 Nb5+ Ka2 Bf3 Ra3 Qe4 b3 Nd4 b2 Rg2 Rb3 Rg3 Rb5 Kd3 Rb4+ Kd2 Ng7 Ke3 Nf5+ Kf2 Bh5 Rd1 b1N Rc1 Rg1 Rd1 e1N Rd3 Ng2 Rb3 Re1 Be2 Bg4 Bc4 Bd1 Rg4 Qbd6 Bf4 Re3 Rg3 Re8 a8B Qb8 Ng4 Ree6 Bc7 Re7 Nge5 Ka1 Rb2 Ra3 Rbb3 Ka2 Qf3 Nfh4 Re6 Qh8 Na5 Qab5 Qf4 Q5b6 Bf3 Qhf8 Qe4 Nf5 Rc6 Qa6 Nb7
1NRbRB2/NK2BbNr/3qq1Nn/bp6/8/1n1n4/b1rPB3/2RrkQn1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 Kc4 g4 h5 d6 c5 d7 f5+ Ke5 b5 a5 f3 g5 b3 a6 h3 a7 h2 g6 b2 g7 f4 Ra2 h4 Ra6 f2 Ra1 f3 Bh3 f1R e4 Kd3 Kd5 f2 e5 c4 e6 c3 e7 c2 e8R Nh6 g8N Be7 Nc3 b1B Nf3 Nc6 Be6 h3 Bf7 Na5 Ng5 Ba2+ Ke5 Nb3 Kd5 Rh7 Bb2 c1B Ba3 Bb2 Na4 Bc3 Kc6 Ba5 Bh5 Re1 Nb6 f1Q Rb1 Qf5 Rc1 Qe6+ Bd6 Rb8 a8N Rf1 Rg1 h1N Nc7 h2 Na6 Ng3 Bf3 Rb7 Nb8 h1N Bh5 Bf6 Ne7 Ne2 Ng6 Nf2 Rc2 Qde7 d8B Ra7 Rh1 Ng1 Rc5 Qf8 Be7 Rd7 Qa1 Rd1 Rc1 Rd8 Rh4 Bd7+ Kb7 Rc8 Rhc4 Rc5 Nc8 Bc6+ Ka6 Bd5 Na7 Rc8 Rc6 Bc4 Kb7 Bd5 Nf3 Ke2 Nfh4+ Ke1 Be2 Nd3 Nf5 Bh4 Ng7 Qf4 Ba3 Qfd6 Bf8 Bhd8 Bc5 Qee5 Ba3 Bf7 Bb4 Qde6 Bbe7 Q5d6 R6c2 Rc5 Qb1 Rg5 Rc8 Rc5 Qa1 Rc4 Qf6 Rc2 Qf1+
r2NNR1K/2n2q1b/kn1B1R1P/Bqpb1B2/QrR3nN/bq6/3n4/q4R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 f5 e4 g5 h4 a5 b4 a4 b6 Kc6 b7 Kb5 e5 g3+ Kf3 g4+ Ke2 c3 Kd3 f3 e6 c2 e7 f4 e8R a3 h5 f2 h6 g2 d5 a2 d6 f3 d7 g3 Bg5 c1N+ Kd4+ Ne2+ Ke5 Nf6 Kf5 Na6 Kg6 Ng4 b8R+ Bb7 Qc1 Qe7 Rbc8 Bd5 d8N c6 Nd2 Nc7 Qb2 Ka6 Nc4 Nc3 Bd3 f1Q Bd2 f2 Qa3+ Na4 Nf3 g1N Nh4 g2 Bf5 Nf3 Nd6 Qb5 Raf1 g1Q Qb3 Nb6 Qa4+ Qa5 Be1 a1Q Rh2 Nd2 b5+ Ka7 Rh1 Qg3 Rh3 Qga3 Rf3 Qb3 Rf4 Qd7 Re6 Qa6 Ne8 Ba3 Rf6 c5 Rc4 Qe6 Kg7 Rb8 Rg1 f1B Rh1 Bd3 Rf1 Ra8 Rb8 Rf8 Rc8 Rf7+ Kh8 Re7 Rb8 Qf7 Rc8 Re4 Rb8 Nf3 Ba5 Nd2 Rc8 Qb7 Rb8 Nc8 b6+ Ka6 Nf3 Qc6 b7 Nb6 Nh4 Qcb5 Rc8 Rf4 b8B Bb1 Be6 Bh7 Bf5 Ne6 Bd6 Nc7 Rcc1 Rb4 Rc4 Bf3 Rb8 Bd5 Ne6 Bf3 N8g7 Bd1 Rf8 Bf3 Ne8 Bd5 Nd8
N2r1Q2/b1B5/N3Pbnq/q1p3R1/qB3N2/1R1R1k1b/qNK1b2r/1n3Bn1 b - - 0 1 illegal: No possible last move, all moves rejected
2N2RRr/2rB1n1N/8/2P1Q1R1/1Bbp1nKb/R2n1B2/1q1k1Nn1/3n1nrr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 c4 Ke5 g4 f5 e4 h5 b4 d5 c5 a5 b6 h3 b7 d3 b5 Kd4 e5 d2 b6 a4 g5 h4 e6 h2 e7 h3 e8N a3 g6 a2 g7 Nc6 b8R Be7 b7 Ne5+ Ke2 f3+ Kf2 f4 Nf6 Ng6 Ng4 Be6 Qe1 Ra7 Nc3 Qb6 Rd8 Nh6 g8B Qb2 b8R Nf7 Bg2 Kd3 Ne4 d4 Nd6 Rc7 Rf8 Bc4 Qe5 Bf6 Rb1 a1R Nc8 Bd8 Nf6 d1N+ Ke1 Be7 Nh7 f2+ Kf1 Bf6 Bd2 Bh4 Rc1 Rb1 Bb4 Ra1 Rc3+ Kd2+ Ne2 Rb1 Rg1 h1R Bb7 h2 Kg2 f1N Kf3 Nfe3 Ng3 Ng2 Kg4 f3 Ba8 f2 Bf3 f1N Ne4+ Ke1 Nf2+ Kd2 Ra8 N6f4 Rb8 Ne1 Rg3 Neg2 Ra8 Rg1 Rb8 h1N Ra8 Nd6 Be6 Nf7 Bd7 Nd3 Rh3 Nhg3 Rg8 Ne2 Rh1 Be7 Rh5 Bh4 Rhg5 Ra1 Ne7 Nef4 Raf8 Ra6 Nc8 Rh6 Ba5 Bg3 Bb4 Rhh1 Qf6 Bh4 Qg7 Bg3 Qe5 Bh4 Ra3+
2KnrN2/1Q1r1Bkr/r1RN2rb/1B2r3/RRb2p1n/1PB1r1Nr/8/2q4N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 Kf7 Kc4 h5 Kd5 a5 g4 a4 c4 d3 e4 a3 c5 d2 c6 h3 e5 a2 e6+ Kg7 b3 f3 e7 h2 Kd6 h4 b6 h3 g5 f2 b7 f4 c7 Rh5 g6 Re5 Qe2 d1R+ Qd2 Nh6 Be2 f1R Bb2 Rf3 Qd4 Re3 Nc3 Nc6 b8R Ba6 c8N Bc4 Nb6 Qc8 Ne4 Nd8 Ng3 Rd2 Rc1 a1R Bc3 R1a6 Qd5 Rda2 Bd3 Rg2 N1e2 Rg1 Qe4 Rg2 Rhd1 h1R Qb7 h2 Ra1 Rgg1 Ra4 Rg2 Rc1 Rgg1 Ne4 Rgg3 Nf2 Rh3 Qe4 Rg1 Ng3 h1R Rb7 R1h2 Nfh1 Rb8 Rc7 Rgg2 Rc6 Rg1 Rb4 Rgg2 Ra1 Rg1 Qd5 Nf5+ Kc5 Rh7 Raa4 Nh4 Kd6 Rh3 Be2 Kf6 Qe4 Bh6 g7 Rg2 g8B Kg7 Nf1 Rg4 Nfg3 Rg5 Be6 Rg6 e8N+ Kf8 Nc7 Kg7 Nb5 Rba8 Ke7 d5 Nd6 d4 Nd7 d3 Nf8 d2 Qd5 d1R Ke8 Qb8 Kd7 Qb5 Bf7 Qc5 Rb7 Qa3 Rbb4 Qc1 Qb5 Rd5 Qb8 Rdd3 Kc8 Rd4 Nb5 Rd7 Nd6 Re7 Bd3 R8a7 Qb5 Rad7 Qb7 Re8 Be2 Be6 Bb5 Bd5 Qc7 Bc4 Qb7
2R1B2B/1q5k/1n4N1/R1q1n1p1/N3brPp/6R1/K1n1rbR1/B1bQ1rNq b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 axb5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kd2 h5 g4 a5 b4 f5 c4 Kf7 Kc2 Kg6 Kb2 d5 c5 h4 c6 a4 c7 d3 b6 a3+ Ka2 d4 b7 d2 e4 f3 b5 f2 e5 d3 b6 f4 e6 f3 e7 Ra4 e8R Nd7 b8B Rf4 b7 Ne7 Nh3 Qg1 Kb3 a2 Rh2 Nd5 Bg2 f1N Kb2 f2 Re4 N5b6 Ng5 Ba3+ Kb3 Ne3 Nc3 f1R Bh1 Re8 Bb2 Nc2 Re3 Ne5 Na4 Bf5 c8R Be4 Rg3 Qc5 Nh3 Kh7 Ng1 g5 Rhg2 Re7 Bd4 Bc1 Bd6 Re8 b8N Re6 Nc6 Re7 Rb1 a1B Ka2 Re6 Ne7 Bc3 Qe2 d1Q Rb5 Be1 Ba1 d2 Ra5 Bf2 Ng6 Qe1 Bf8 d1Q Bg7 Qd7 Bh8 Qb7 Qd2 Rd6 Qe2 Rd2 Qd1 Re2 Rh2 Bf5 Bc6 Be4 Be8 Qec3 Ne7 Qf3 Ng6 Qh1 Rhg2
nR3Nqr/1p3Bb1/R1NnQ3/b3p1K1/3q2P1/1Bkb4/1r3q2/RrnN1NB1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Ke2 Kf7 g4 Ke6 f4 Kd5 a4 Kc4 a5 d5 g6 h5 f5 e5 f6 d3+ Ke3 d4+ Kf2 e3+ Kg3 b3 Kh4 e2 g7 e1B+ Kg5 b2 c3 h4 a6 h3 a7 h2 Be3 Ne7 f7 Na6 g8B Nc7 Ra6 Bf5 Nf3 Bg7 f8N+ Qd5 Qc1 Nc8 Bf7 Nd6 Nh4 Bd2 Rg1 h1Q Ng2 Qh2 Be2 Rc8 Bd1 Na8 Rf1 Be1 Bg1 d2 Bb3+ Kd3 c4 d1Q c5 Ba5 Ne3 Qf2 Nd2 b1R Qa3 Kc3 c6 d3 c7 Rd8 c8N Qe6 Bh5 Qg8 Bhf7 Bh7 Ne7 Rb2 Ndc4 d2 Nc6 Bd3 Qa2 Qa1 Re1 d1N Nf1 Rb1 Nce3 Nb2 Bc2 Rd7 Qe6 Qa4 Bd1 Qd4 Bb3 Rc7 Nb8 Rc5 Nc6 Rb5 Rd1 Bc2 Rc1 Nd3 Re1 Nc1 Rd1 Nc7 a8R Bd3 Rb8 Na8 Re1 Rb2 Rd1 Na2 Rb1 Nc1 Ra1 Rb1 Bc4 R5b2 Ba2 Rc2 Bb3 Rcb2 Nd1#
bN3Nb1/n1B1k3/n3r3/2rBBb2/1Nn2r1p/b5p1/Qq1PR1RB/2b3RK b - - 0 1 illegal: No proof kernel
r1bB4/1n4RK/n2Bqrpp/n3b3/3R1NNQ/nn5N/BN3Pb1/2krR3 b - - 0 1 illegal: No proof kernel
4NBb1/4b2b/p2pR1rn/4P1QB/3q1n2/2r2nnn/KBRRrk2/1NBN4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 Kc2 Kg5 Kb3 Kg4 e4+ Kg3 e5 h5 c5 f5 b6 d3 b7 h3 c6 f3 c7 f2 Nf3 h2 Bh6 a6 Rg1 h1B Ka2 h4 b4 f4 b5 d2 b6 h3 Be2 f1R Na3 h2 Nc2 Be7 Qc1 d1N Nd2 f3 Nb1 f2 Bh5 Nb2 Ne3 Nc6 b8B Nd4 b7 Nd3 Ba7 Re1 b8B Nf3 Bd4 f1N Bb2 Kf2 g4 Nf4 g5 Ng3 g6 Re2 g7 d6 Ba7 Bf5 c8R Qb6 Rc2 Qd4 Bc5 Ra7 Bca3 Bh7 Rd1 Rc7 Rdd2 Nf6 g8N Rc3 Bf8 Ng4 Nf6 Nh6 Ne8 Rg8 Qd1 Bg2 Bc1 Rg6 Bab2 Ne4 Qh1 Neg5 Qd1 Ngh3 Qh1 Bf1 Qg1+ Ke1 Qg5 h1N Nd1 Ng3 Ne3 Rc6 Kb3 Kf2 Ra4 Rc7 Ka2 Rc3 Rb4 Bg2 Rb7 Bd8 Rf7 Be7 Rf5 Nfg1 Rf6 Bd5+ Nc4 Bf7 Re6 Nf3 Ne3 Bfg8 Nd1+
1r1n2bb/Q3NBRb/1n2R3/2P5/R1BN2KB/2kr2p1/qr1N1p1b/1q2bB2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kf2 Ke7 Kg3 Ke6 b4 Kd5 h4 Kc4 e4+ d3 e6 f5 c3 d5 e5 a5 h5 g5 e7 a3 e8B a2 e6 f4+ Kg2 d4 b5 a4 e7 f3+ Kg3 f2 h6 a3 h7 Nc6 b6 Qd5 b7 Be6 b8N Nd8 Bg6 Nf6 e8B Nd7 Bg2 d2 Ne2 d3 Rh2 Bb4 Qg1 d1B Be3 d2 Bd4 Bc2 Bb6 d1R Bh3 Bg8 Nc6 Rb8 Bf1 Rd3+ Be3 Qe6 Rh6 Nb6 Ne7 Kb3 c4 Be1 c5 Rb7 Kg2 g3 Kf3 g2 Bgf7 g4+ Kg3 Kb2 Nd2 Rb8 Qh2 g1B Nd4 Kc3 Bb5 Qd5 Kh4 g3 Re6 Qb7 Qg2 Bh2 Kg4 Qa7 Bc4 Qa5 Rd1 a1B Qb7 a2 Qa7 Qb5 Bg5 Qb1 Bf6 Bb2 Bh4 a1Q Rg6 Qaa2 Rg7 Qb3 Rc1 Q1a2 Ra1 Qb1 Ra5 Q3a2 Ra3+ Kb4 N4b3 Rb7 Kh3 Rdd7 Bcd3 Nd5 Qa6 Ne6 Rg5 Be5 Ra4+ Kc3 Be8 Bf7 Kg4 Rb5 Bde2 Nb6 Qa7 Be4 Bc4 Rd3 Nd4 Rb2 Rg6 Rf8 h8R Bg8 Rh5 Bh8 Rg7 Beh7 Bf7 Rb8 Re5 Nd8 Re6
Q3R1Rq/5kr1/1b1R1q1p/1B3NPb/1RrnBb2/NN6/n2bpBbr/1K6 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 g4 a5 b4 d5 f4 e3+ Kd3 h3 c4 h2 Kc2 d3+ Kb2 e4 f5 a4 c5 a3+ Ka2 d2 f6 d4 b6 d3 g5 Nh6 b5 Ra4 b7 Nf5 b6 Bd6 c6 Bf4 c7 Na6 b8R Bb7 Qc2 d1R c8B d2 f7+ Ke7 Bg2 Rc4 f8N e2 Nf3 e1B Ne6 e3 Nc5 Bc6 Rf1 h1Q b7 Qd4 Qd3 Qf6 Qd5 Qh3 Bd7 Nb4+ Kb3 a2 Rg8 Bf2 b8R Re1 Ka3 d1B Nd4 Bg4 Kb2 Rd1 Re1 e2 Na3 Qhh6 Rb1 a1B+ Kb3 Na2 Be3 Bc3 Kc2 Rd3 R1b6 Bd2+ Kb2 Qhg7 Rb1 h6 Qe4+ Kf7 Rbe8 Rh7 Qf3 Ba8 Bb5 Qh8 Rd6 Bh5 Ka1 Rdc3 Rb4 Rg7 Ncb3 Rc1+ Kb2 Rh1 Qc6 Rh2 Kb1 Bb7 Qc8 Bbf3 Qa8 Bg1 Bf1 Bh1 Bg2 Bf2 Be4 Bg1 Bf2 Bg2 Bg3 Bge3 Ne6 Bc5 Ned4 Ba7 Bf2 Bb6 Nf3 Nd4 Nh4 Qe5 Nf5 Qe6 Bg3 Qf6 Bf2
2Bn2nb/n3q1Nn/B3r1P1/3qn1B1/KQr3R1/5B2/pRN1pR2/Nk1b3b b - - 0 1 illegal: No possible last move, all moves rejected
2B4k/1b1bBK2/1nnRQ1pr/3qR1b1/1p1PbNNR/3n2N1/5B2/B1b2rq1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 c5 e4 f5 a4 Kf7 h4 b5 d6 g3+ Kf3 g2 h5 g6 h6 b3 e5 b2 d7 b4 a5 c4 a6 c3 e6+ Kf6 a7 c2 h7 Kg7 e7 Nf6 Nc3 b1B Nge2 g1B Qe1 Nd5 Rh4 Nb6 Ne4 Bb7 Ra6 Be3 Bh3 Nc6 N4g3 Rc8 e8R Be7 a8N Bg5 Re5 Rf8 d3 Kh8 Nc7 Bd2 Bb2 c1N Ne8 Rf6 d4 Nd3 Ba1 Bc1 Bg4 Rf7 Nf6 Qg8 d8B Rb8 Kg2 f3+ Kh3 f4 Be7 f2 Bc8 f1B+ Kg4 f3 Nf4 f2 Qe4 Bg2 Qd5 f1Q Qe6 Nc4 Rb6 Be4 Ra6 Qg1 Rb6 Nd8 Rd6 Nc6 Nh3 Bgd2 Nf4 Nb6 Kg5 Bc2 Ng4 Ba4 Qd7 Rf6 Qf5 Qd5 Qe6 Nd8 Kh6 Bd7 Kg5 Nc6 Kh6 Rf7 Kg5 Kg7 h8B+ Kg8 Bg7 Ra8 Bh6 Kh8 Rh3 Rh7 Kf6 Ra6 Bg5 Rh6 Bh4 Ra2 Kf7 Rc2 Nfh5 Bg5 Nf4 Ra2 Nge2 Rd2 Bf2 Rd1 Ng3 Rf1 Rh4
1b3N2/3RbRP1/1r1q1Qq1/1nNn3p/b1r2b2/4r1BB/2kp1K1B/NbB3R1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 f4 Ke6 g4 Kd5 g5 h5 b6 a5 g6 e5 b5 e3 c4+ Ke4 f5 d5 g7 h3 c5 e2 f6 h2 f7 a4 c6 d3 b7 a3 b6 d2+ Kf2 Kd3 c7 d4 Bg2 e1B+ Kf1 e4 Qe2+ Kc2 Qf3 d1B Bf4 e3 Qf2+ Bd2 Bg3 a2 Bd5 e2+ Kg2 e1R Qf3 d3 Qf6 Ne7 Ne2 Na6 b8B Bf5 c8R+ Nc7 b7 Bf4 Nc1 Ra4 Nd2 Re3 Rf1 h1Q+ Kf2 Qd6 Ncb3 Rc4 Nc5 Qe4 Rd8 Rh6 Rd7 Nb5 Be6 Nd5 Ndb3 Be7 f8N Bg6 Rb1 a1B Bh3 Bae5 Bc7 Bh7 b8B Qf5 Ba5 Qg6 Bb4 d2 Ba3 Kc3 Bc1 Bc2 Na5 Ba4 Rg1 Kc2 Bc7 Nd4 Rb7 Nb5 Nab3 Qb6 Bd8 Bb8 Bc7 Qe6 Be5 Qd6 Bh2 Bg5 Beg3 Bf4 Rbc7 Qg4 Kg2 Qc6 Rd6 Bd8 Ncd7 Kb1 Qh4 Bf5 Rf6 Be7 Rf7 Rf6 Ra7 Qg6 Ndc5 Qc7 Rb7 Rb6 Qf6 Qd6 Rc7 Kc2 Kf1 Kd1 Rd7 Bb1 Kf2+ Kc2 Na1#
BNBn3R/1Pqr1n2/1b2q2q/N3bBB1/Kpp3rq/1R4Q1/k3b3/1R1q1N2 b - - 0 1 illegal: No proof kernel
2R2r2/1P2Q3/1KB1NbNR/1pN1b1BB/p3k2b/Rnbr1q2/2n2qb1/5Bn1 b - - 0 1 illegal: No possible last move
4nb1N/qP1Bnrp1/1Q6/Bp3q2/q4NNq/q2R1K1b/2BRrb2/1k2B1R1 b - - 0 1 illegal: No proof kernel
nN2nb2/1bbkB3/b1rB2B1/1q2B1N1/q1R3R1/P1K3R1/rp2qpr1/2N4Q b - - 0 1 illegal: No possible last move, all moves rejected
B2RrNb1/6B1/4qR2/1b1rbpr1/1K1B1q1k/2rN1n1B/Nn2PpRQ/1n6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Kf6 b4 Kg5 c4 h5 c5 f5 c6 d5 c7 a5 b6 a4 b5 a3 b7 h3 b6 d3 Kc3 d4+ Kc4 d2 Qb3 d1N Nc3 d3 Qb4 a2 Bg2 h2 Nd5 d2 Qb1 f3 Qb5 f2 Rb1 a1R Qb2 h4 Nc3 h3 Na2 Bg7 Qc3 Kh4 g5 Rh5 g6 Ne7 Kb4 Rg5 Qe5 Be6 c8R Qd7 Bb2 Bg8 Rd8 Qe6 Bd4 Nd7 b8N Nb2 b7 d1R Rc1 Rd3 Rc6 Rc3 Bf1 Bf6 g7 Rd1 Qd6 Ne5 Nd7 Rc8 b8B Nf3 Nf8 Be5 Bg2 Nd2 Rb6 Nb1 Qc7 Ng6 Nf3+ Kg4 Rg1 h1B Ne1 h2 Bh3+ Kh4 Ra6 Bc6 Rg2 h1Q Nd3 Qh2 Bba7 Qf4 Bb6 Bh7 g8B Bb5 Bf7 Bg8 Bc5 Qe7 Bd5 Qe6 Ba8 Rd2 Rd7 Re8 Rd8 Bh8 Be7 Ne5 Bf6 Nf3 Bg7 Rd1 Bh6 Be5 Bg7 Qd5 Rg6 Qe6 Qb8 Rc5 Qc7 Rdc1 Rf6 Rd5 Qc3 Rc2 Qe1 Rc6 Qh1 Rc3 Qh2
1r1Q3q/Nq2b3/nq2RbRk/4P3/2KN1BB1/Bp1r2nq/2Bpb1rR/2N5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 f5 Kd3 Kf7 h4 d5 c4 g5 e4 Kg7 a4 b5 c5 f3 a5 b3 a6 b2 a7 b4 c6 g4 c7 g3 Nd2 b1Q+ Qc2 f4 Ra5 g2 Rh3 f2 Ndf3 Ne7 Rg3+ Kh6 Ne2 g1B Bh3 f1Q Rg4 Na6 Rg5 Qf2 Bg4 Rg8 Ba3 Rb8 a8B Nf5 Nc1 Be7 Ra4 Be6 c8N Ng3 Na7 Qb6 Bb7 Qh2 Bc6 Qb2 Qd2 b3 Be8 Qh3 Bg6 Bd7 Qa5 Bb5+ Rc4 Qb7 Qd8 Bf6 Bh7 Bf2 Bhf5 Be1 Bh7 Bb4 Bhf5 Bbe7 Bg6 Be8 Rc6 Qa1 Re6 Bb5+ Kd2 d3 Nd4 f3 e5 Qa2+ Kc3 f2 Be4 d2 Bc2 Ba4 Kd3 f1Q+ Kc3 Qg1 Kd3 Kh7 h6 Bb5+ Kc3+ Bd3 h5 d1R Qe8 Kh8 h7 Be2 Qd7 Rg6 Qd8+ Kg7 h8B+ Kh7 h6 Qf2 Ndc6 Qfb6 Nd4 Rd2 Bg7 Qb1 Na2 Qbh1 Nc1 Rd1 Rf5 Rg5 Bf8 Kg6 h7 Q1h2 h8R Rd3+ Kb2 Qh1 Rh4 Q1h2 Bh6 Kh7 Rh5 Rg6 Be3+ Kg7 Rhg5 Kh6 Rf2 Qh1 Rh2 Rg7 Ndb5 d4 Bd2 Qhe4 Be3 Qh7 Bf4 Qh8 Nc3 Re3 Ncb5 d3 Kc3 Rg6 Kc4 d2+ Nd3 Bd1 Nc1 Rd3 Nd4 Be2 Qd6 Rgg8 Qd8 Nb4 Bf3 Nh1 Rf5+ Rg5 Bh5 Na6 Bf3 Kh7 Bh5 Rg2 Rg5 Kh6 Bg4 Ng3 Rg6+
3kr1qN/1R4RQ/b2n2K1/r1p1B3/1R1n2b1/B2BBqn1/2Pqr2p/1NN1r3 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Bg2 Bh6 Bh3 fxg4 Bf1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bf5 Ne2 Be6 Ng1 Bc8 Ke2 e5 Ke3 h5 a4 b5 f4 c5 d4 b3 d5 b4 a5 h4 a6 g2 f5 g3 g6 h3 d6 h2 f6 b2 g7 b3 a7 Nh6 g8N Nf7 Qf3 Ba6 Na3 b1Q Qe2 b2 Nh6 Nc6 Qh5 Nd4 Ne2 g1N Qg6 g2 Qh7 Qa5 d7+ Kd8 Ra2 Nd6 f7 Qa1 f8B b1B Rb2 Ba2 Nb1 Be6 Rb4 Bg4 Bg7 Re8 Ba3 Qb2 Nc1 Nge2 Rg1 Ng3 Bd3 Qb3 Rf1 Qg8 Rf7 g1R Rb7 Qc3 Bh8 Rg2 Rg7 Rb8 a8R Rf2 Raa7 Ra8 Rb4 Qcb3 Rab7 Qbf7 Be2 Qf3+ Kd2 e3+ Kc3 e4 Bd3 e2 Nf7+ Ke7 Kd2 e1R+ Kc3 e3 d8B+ Ke6 Bg5 e2 Be3 Rg2 Rg5 Rf2 Be5 Rg2 Rg7 Ra7 R7b5 Ke7 Nh8+ Kd8 Rbb7 Bb5 Bg1 Ra5 Bf2 Ba6 Kd2 Qff7 Ke3 Qd5 Kf4 Qf3+ Kg5 Reg1 Bg6 e1Q Bd3 Qd2+ Kg6 Re1 Bg1 Rge2 Be3
RKRnnQBb/3q1N1q/b1B1Nk1r/1p2R1p1/1q3q2/2b4P/1nr4N/3N2B1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 a4 b5 e4 c5 d4 f5 h3 g5 d6+ Kf6 d7 f3 Ke3 g3 a5 b3 d5 c4 Kd4 g2 d6 f4 Kd5 f2 a6 c3 a7 f3 Be3 c2 Bc4 f1Q Nc3 b2 Rc1 f2 Nf3 b1Q Nh2 g1B Qd2 Qg2 Nd1 f1Q Qb4 Rh6 Bf2 Qc7 d8N Qd7 Nf7 Bg7 Kc5 Ba6 Kb6 Nc6 e5+ Kf5 e6 Kf6 e7 Qgg4 e8B Bh8 Be3 Rc8 a8R Qff4 Ba2 Bf2 Re1 Nd8 Bc5 Rc7 Re5 Be1 Bg1 Bc3 Qa3 Qbb4 Bb3 Qdf5 Bc6 Qh7 d7 Rc8 Ka7 Qe6 Rb1 c1N Ba2 Nd3 Rc1 Rc7+ Kb8 Nb2 Bad5 Ne7 Ba2 Nf5 Rc2 Nd6 Bad5 N8b7 d8N Qd7 Ne6 Ne8 Rc1 Nd8 Bc4 Qa4 Qf8 Qb4 Bd3 Qg7 Bh7 Qg6 Bg8 Qh7 Rc2 Bd2 Bf3 Be1 Rg2 Rc1 Rc2 Bd2 Rc7 Bc3 Bc6 Rc2 Rc8
rk2B1nB/7b/5nRp/bq1n2P1/3QN2B/2p1NR2/r3q3/1NqrrRKN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 a5 e4 c5 b4 Kc7 d4 f5 e5 h3 e6 h6 d5 c3 e7 f3 Ra3 c2 Qd4 h2 Nh3 c4 Bb2 Nd7 e8N+ Kb8 d6 c1Q b6 f4 b7 a4 b5 Qa5 Ng7 Ndf6 d7 Bb4 d8B Bf5 Rb3 Bc2 Nf5 a3 Ne3 a2 Bd3 a1Q Bg6 Q1a2 Rf1 h1R Be8 Bh7 Rd3 Rh2+ Kg1 Qa6 Ba1 Ba5 Nf2 Qe2 Nh1 Qb6 g5 Qc6 Bb6 Qd5 Bc3 Qe5 Be1 c3 Bh4 Ng4 Re1 Qed1 Qe4 Ra2 Bf2 Ne7 Nd5 Qe2 Bh5 Rd8 Be8 Ng8 Bbd4 Rd7 Bh4 f2+ Kg2 f1N+ Kg1 Qf5 Bh8 Ka7 b8R f3 b6+ Ka6 b7 Ka7 Rd8 Qe5 b8N Nfe3 Na6 Qb8 Rc8 Qb5 Rc6 Kb7 Rg6 N4f6 Nc5+ Kb8 Qe5+ Rd6 Ne4 f2+ Kh2 Nd1 Rf3 Ne3 Qg3 f1R+ Qf2 Ng2 Qc5 Rg1 Ne3 Rd1 Qc4 Rf1 Qd4 Rg1 Ref1 Nf4+ R1f2 N4d5 Neg3 Qec4 Ne4 Rge1 Kg2 Ra3 Rf1 Qe2+ Kg1 Ra4 Bc6 Ra2 Be8
4Kb1q/rk5n/2PBBr2/7r/2bR4/1b1NRN1B/p2Nn2p/rq1qQ1NR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 d5 e4 Kd7 Kg4 Kc7+ Kh5 f5 g4 h3 b4 h2 c4 d3 b6+ Kb7 g5 a4 c5 d4 g6 f3 b5 a3 g7 d2 e5 d3 e6 f2 e7 f4 e8R a2 Re5 f3 Re3 Nf6+ Kh6 Be6 Bh3 f1Q Qe1 d1B Nd2 f2 Kg5 h5 Kg6 h4 g8B Beb3 Bge6 Nc6 Kf7 Ra7 Rb1 Bd5 Rb4 Nh7 Rd4 Bc4 Bb2 Qf6+ Ke8 Bdb3 Bc3 Qg2 Ba5 f1R Bc3 Qe4 Bb2 Kb8 b7 Kc7 b8N Kb7 b6 Qh6 Rg3 Rf6 Na6 Qf5 Re3 Qf1 Rd6 Nd4 Nb4 Ne2 Be5 Qg7 Rd4 Qf5 Ndf3 d2 Bd6 d1Q Nd2 Qfb1 Nd3 Qh6 Bhg4 h3 Bgf5 Ka6 b7 Qg7 b8N+ Kb7 Nc6 Qg8 Nce5 Qg7 Ngf3 Qh6 Rf1 h1R Ng1 h2 Bg4 Rg8 Nef3 Rg5 Bh3 Rh5 Bg8 Qg7 Bge6 Qh8 Qf2 Nf4 Ne2 Qdc1 Rg1 Qbc2 Rg3 Rf1 Rg1 Q1b2 Qh4 Ra1 Rh1 Qd1 Neg1 Qbb1 Qe1 Ne2 c6+
k2KR2r/3b1B1q/2p3R1/1N1b3r/1N3qPB/NR1nb1q1/2RQ1qBp/3nn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 e4 a5 b4 h5 g4 c3 d4 h3 b6 Kc6 b7 c2 e5 a4 e6 h4 e7 h2 e8B+ Bd7 Bh5 h3 Ne2 a3 Bf7 a2 Ng1 Nf6 Qd2 Ne4 Bb3 Nc3 Bf7 Qe7 Bb3 Qh7 Bg2 Bc5 Ne2 Na6 b8R Nd1 Re8 Kb7 b5 Nb4 b6 Ra5 d5 Nd3 d6 Be3 Nec3 c6 Na3 Rc5 Rb1 a1Q Ncb5 Qc3 Bf7 Qb3 Re1 h1B Re2 h2 Rg8 Rd5 Rg6 Ka8 Bb2 c1N Bf6 Nb4 Bg5 Ncd3 Bh4 Nc2 Rf2 Qc3 Rb3 Nce1+ Ke2 Bc8 d7 Rc5 d8R f3+ Kf1 f4 Re8 Rh5 b7+ Kb8 Nc7 Ka7 b8N Bd7 Ncb5+ Ka8 Re2 Qe5 Na6+ Qb8 Nb4 f2 Bh3 Bd5 Bg2 Qd8 Qc3 Qb8 Rc2 Bc5 Ke2 f1Q+ Kd2 f3 Qd4 f2 Qf4 N1b2 Kc3 Be3 Qg5 Qe2 Qh6 f1Q Qf4 Bc1 Kd4 Nd1 Qd2 Qff3 Na2 Qg3 Nb4 Nf4 Kc5 Qef2+ Ree3 Qe5 Kb6 Qg5 Kc7 Nfd3+ Nd6 Q5f4 Re8+ Bc8 Kd8 Bd7 Qe2 Bd2 Ndb5 Be3 Qd2
N5b1/q1Q3n1/rP1p1p1r/R1rq1RN1/2nb2K1/1N4b1/k2bR3/B1BN1Bn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 b4 a5 c4 g5 h4 f3 Kg3 f2 h5 d3 b6 a4 b7 d2 h6 f6 h7 a3 b5 Kc5 e5 Kb4 e6 d6 e7 a2 e8N Be6 b6 Qc7 c5 Nd7 b8N Ne5 c6 Ra6 Qe2 Kb3 Ba3 d1Q Qe1 Qd5 Qc1 Bh6 Nf3 Ne7 Bb2 Nc4 Rh5 Qa7 c7 Bg8 c8R Nf5+ Kh2 g3+ Kh3 g2 Nd7 g1B Nc3 Ra5 Kg4 Ra6 Nc7 Ng7 Re8 Bh2 Na8 Be5 Nd1 Bg3 Bd3 f1R Re2 Rg1 Bc3 Rh1 Qc2+ Ka3 Nc5 Rh2 Nb3 Rh1 Rb1 a1B Be5 Bd4 Ra1+ Kb4 Ra5 Rh2 Qc1 Rg2 Rb2 Rc2 Bf1 Rc3 Rb5+ Ka3 Re2+ Nb2 Qc2 Rc5 Qc4 Ka2 Ra5+ Kb1 Qa4 Nc4 Qc6 Be3 Ba1 Bef2 Kh3 Bd4 Qc7 g4+ Kg2 Be1 Rf5 g3 Kh3 g2 Kg4 Bhd2 Ng5 g1N Qd8 Bg3 Qe7 Bf7 Qc7 Re8 h8B Bg8 Qd7 Re3 Qb7 Rf3 Qc7 Rf2 Nb2 Rh2 Nd1 Ne6 Bg7 Rh8 Bh6 Ng7 Ne6 Rh7 Bg5 Rh6 Be3 Bde1 Bc1 Bd2 Rb5 Ka2 Ng5 Ra3 Ra5 Ra4 Rb5 Ra6 Ra5+
3b1BbR/3n1q2/1p1rp2n/Bn2R3/1Bk2N1N/bB3bq1/N3Prr1/1Q2K1R1 b - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 c4 f6 g5 fxg5 cxd5 gxh4 Qb3 h3 Qc2 Bd7 Qd1 Bc8 f4 Kd7 a4 Kd6 d4 h5 f5 c5 f6 g5 f7 b3 a5 g4 a6 c4 a7 h4 Bb2 b6 Bc1 g3 Bg5 h2 Qd3 b2 Ra3 g2 Ra1 c3 Bh6 c2 Nf3 c1B Ra5 g1R Bd2 h3 Ra4 Qc7 Rc4 Rg2 Nh4 Rh6 Rg1 h1B Ba5 h2 Rc5 Be6 Nc3 b1N Na2 Na3 Qb1 Nd7 Rb5 Bg7 f8B Bf6 Rc5 Rc8 a8R Nb5 Rb8 Rf2 Bh3 Bf3 Ra8 Bf7 Be6 h1Q Rb8 Qa7 Ra8 Rc6 Re8 Ba3 Rd8 Kc7 d6+ Kb7 d5 Ka6 Re8 Qh3 Rd8 Rg6 Rc8 Ne5 d7 Nh6 d8N Bg8 d6 Rgg2 d7 Rd6 Bb3 Qg3 Ne6 Qc7 d8B Nd7 Nf4 e6 Rf5 Qb7 Bc7 Bd8 Re5 Nc5 Qa1 Rd5 Bg7 Be7 Bd2 Bf7 Bd1 Nc3 Qc1 Kb5 Ra8 Kc4 Rh8 Bg8 Bd6 Bd8 Qb1 Nb5 Ba5 Qf7 Bgf8 Nd7 Bdb4 Rd6 Bb3+
K3Q3/1R3Nnr/p1R1BB2/2b2B1q/1N1rR3/P3b2p/1kqrn3/1RN1qn1n b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 h3 fxg4 Ke2 g3 Ke1 g2 Nf3 g5 Ng1 g4 Ne2 g3 Ng1 Bg4 hxg4 Qd7 Ke2 Qc8 Ke1 Qd8 Ke2 Kf7 Ke3 Kf6 b4 Ke5 b5 c5 d3 h5 f3 c3 g5 c2 g6 h4 a3 h3 b6 c4 g7 a6 b7 c3 Qd2 Qd5 Qf2 Nf6 g8B Ne8 Qe2 Rh7 Bd2 c1B Be6 c2 Nc3 Nc6 b8R Nd4 Rb3 Rd8 Rb7 Ng7 Na2 Nb3 Nb4 Qb5 Qe1 Rd4 Ne2 g1N Rh2 g2 f4+ Kd6 f5 Kc5 Kf4 e3+ Ke5 Qa5 Bc3 Nd2 f6 Qb5 Nf4 Ne2 f7 Ng3 Ne2 g1N Rg2 Nh1 Rg4 Qa5 Re4 Qb5 Bg2 Nf1 Bb2 Bd2 Nc1 e2 Bf3 Qa5 Bfg4 Be3 Bef5 e6 Bc3 Be7 f8R Qb5 Rg8 Qe8 Rf8 Qh5 Rf6 Bf8 Qd1 e1Q Qe2 Qf2 Qe1 Ne2 Rh6 Rd6 d4+ Kc4 Bb2 Rd8 Rg6 Bc5 d5+ Nd4 d6 Qd2 Ne2 Kb3 d7 c1R Bc3 Rd1 Nc1+ Ka4 Rh6 Qc2 Rf6 Ne2 Bb2 Rb8 d8N Rd2 Nf7 Rbd8 Rg6 R8d3 Bc3 Bcd4+ Kd6 e5 Kc7 Bc5 Kb8 Rd4 Nca2 Kb3 Ka8 Ba7 Rc6 Bc5 Rf4 e4 Bb2 Rc4 Bf6 Rcd4 Nc1+ Kb2 Be6 Bg1 Bgf5 e3 Rbb6 Nc3 Re4 e2 Rb7 Be3 Qd1 e1Q Qe2 Bb6 Qb5 Ne2 Qe5 Ba7 Qb8 Bb6 Qe8 Bc5 Rb1+
2B2r2/1R2nq1p/2q1p3/3RQ1b1/2k1B2r/1qRNB2n/1br1PR2/nKn3NN b - - 0 1 illegal: No possible last move
bK2N3/3qR1Pk/8/q1r1nR1p/QBR1q2N/1np2Rr1/B3Bn1b/1Nb1n3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 Kf7 g4 Kg7 d4 a5 e4 h5 d5 c3 b6 h3 b5 c4 e5 c2 b7 h2 b6 a4 d6 c3 g5 a3 d7 a2 e6 Ra5 g6 Nf6 e7 Nc6 e8B Ne4 b8N Nf2 b7 Rg8 Ba3 c1B Be2 Rc5 Bb4 Bd6 Qa4 Qa5 d8R Kh8 Na6 Ne5+ Kg2 f3+ Kg3 Nfd3 b8R f2 Nc7 f1Q Bf7 Ne1 Ne8 Bb7 Rdc8 Ba8 Rb7 Bc7 Nf3 f4+ Kh4 Rg7 Kg5 Qh3 Kf6 Qd7 Rf1 h1N Nh4 f3 Bd5 f2 Bb3 Qd4 Ke6 Qe4 Ra7 Bd6 Re7 Bb8 Rcc7 Rg8 Kd6 Rg7 Rg1 f1Q Rg5 Qf7 Rf5 Nf2 Bd5 N5f3 Kd7 Ne5+ Kc8 Rg8 Rc6 Bd6 Rcc7 Qe6+ Kb8 Qd7 Na3 Rg7 Rb1 a1N Ba2 Rg8 Rb2 Nb3 Nb1 Rf8 g7+ Kh7 Rf3 Rf5 Rd2 Rg5 Rd5 Rg3 Rff7 Neg4 Rdf5 Bdf4 Rf8 Ne5 Rc8 Rg1 R8f6 Bh2 Rf3 Rg3 R6f5 Rd5 Rc4 Rc5 Re3 Nd4 Rd3 Nb3 Rdf3
3Rq2r/QrRn1NpB/2r2p2/1q1NB1P1/2k3b1/6R1/2rBB1nK/1n1q1bN1 b - - 0 1 illegal: No proof kernel
1b3r2/5prR/P2B1br1/1n4np/2NqNknR/7B/bBb3K1/NRqQ2N1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 g4 Kd6 d4 b5 e4 c5 a4 h5 g5 f3 g6 b3 a5 b4 a6 b2 g7 b3 Ra3 h3 Bh6 h2 Ne2 c4 Bg5 c3 Bd2 c2 Ra5 c1B Ra4 Rh6 Ng1 Be7 Bh3 Rg6 Na3 b1N Nc2 b2 Bc3 Nd7 Na1 Nh6 g8N Nf8 Nf6 Ng4+ Kg3 f2 Kg2 f1R e5+ Kc7 e6 Kd6 Rb4 Na3 Rb7 b1B Bb2 Bf4 Rb4 Nh7 Ne4+ Kc7 d6+ Kc6 d7 Kd5 Rb6 Bf6 e7 Ng5 e8N Ba2 N8d6 Nb5 Nc4 Bb8 Rb7 Qb6 d8B Bf5 Be7 Rg7 Bd6 Rf3 Nc5 Bc2 Ne4 Ke6 d5+ Kf5 Bc1 Qd4 Bb2 Ba7 Rb8 Rb3 Rh8 Bb8 Rh7 Re3 Bc7 Rd3 d6 Rg6 d7 Rg3+ Kf1 Rg7 d8R Rg6 Bd6 Rg7 Bda3 Kf4 Rd5 Ba7 Re5 Rf8 Be7 Bb8 Bd6 Ra3 Kg2 Rc3 Ne3 Rc6 Nc4 Rb6 Nf3 Rc6 Re1 Rb6 Ng1 h1Q+ Kf1 Qf3+ Nf2 Qfe3 Bc5 Nh6 Re4+ Kg3 Qe2 Bfe5 Rh4 Ng4 Rb1 Rbg6 Ne4+ Kf4 Kg2 Bf6 Qd1 Qc1 Bd6+
5Kn1/4P3/b1R2B2/1Q3pNq/1b1NB1pq/2r2RNk/Br1N1qbr/1q3R1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 h4 Kf5 b4 d5 e4+ Kg6 c5 Kh5 b6 a5 e5 g5 b7 f5 b5 f3 Kg3 a4 b6 f2 c6 a3 c7 d3 e6 d2 Rh3 d4 Qe2 d1R Nd2 a2 Qb5 d3 Bg2 f1B Ne2 Qd5 Bb2 Qc4 Be4 Nc6 b8R Nd4 b7 Bb4 e7 Bg2 Bc3 Rh1 Rf1 Ra3 Ra8 a1Q b8N Rg1 Ra6 Qb1 Rc6 Ba6 c8B Ra2 Ba1 Rb2 Be6 Rh1 B6d5 Rh2 Be6 Qca2 Bc4 Qa4 Ba2 Rh6 Nd7 Re6 Nc5 Re5 Ne6 Rc5 Bf3 Rc3 Be4 Nf3 N6d4 Ng1 Kf2 g3+ Ke3 Kg4 h5 Bd6 h6 Bb4 Nc1 Ne2 h7 Bf3 h8N g2 Nf7 Ng3 Nce2 Nh1 Ng3 g1Q+ Rf2 Qgc1 Rf1 Bg2 Nf3 Qac2 Kd4 Qe1 Kd5 Qa4 Ke6 Qf2 Nc4 d2 Nd4 d1Q Nd2 Qdf3 Kd7 Q3e2 Ke8 Qed1 Kf8 Qde2 Rhh6 Qed1 Rhd6 Kh3 Rd5 Qh5 Rdc5 Rcb3 Rc3 Ra3 Rf3 Rc3 Qd5 g4 Qe5 Qad1 Qb5 Qde1 Ng5+ Kh4 Bd3 Rc5 Bdc4 Qfe3 N4b3 Rc2 Bf6 Rb2 Bd3 Rc3 Ne2 Qg3 Nbd4 Qef2 Nge6+ Kh3 Be4 Qd3 Rf4 Qgh4 Ng3 Qc2 Rf3 Qb1 Ng5+
1Qrk4/b1q1p3/1n4B1/2R2r2/pP1K1B2/1NRB2rq/R1b2nb1/2rN1NRn b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 b4 d5 c4 h3 f4 h2 b6 e3+ Kd3 e2 c5 e1R b7 h4 f5 h3 f6 a4 c6 Re5 c7 Bg7 g5 Nd7 b8R Bb7 c8B Qc7 g6 Nh6 f7+ Kd8 f8N Rf5 Nd2 Rg8 Ne2 Nb6 Nd7 Ng4 Rg1 h1N Nc3 h2 Ra2 Bc6 Nc5 Ngf2+ Kc2 Be5 g7 d3+ Kb2 d4 Ncb3 Bf4 Qe2 Bg3 Nd1 Bg2 Qe5 Bf4 Be2 Be3 Nf1 d2 Bc4 d3 Kc3 Bc5 Rb7 Rb8 B8e6 Be3 Bf7 Rc8 Bg6 Bc5 Ra7 Be3 Ra5 Bc5 Nb2 d1R Bf4 d2 Bd3 Rb1 Rb5 d1B Ra5 Bc2 Nd1 Rc1 Qd6+ Qd7 Qb8 Qc7 Rb5 Ng3 Ra5 h1Q Rb5 Qh3 Ra5 Rgf8 g8R Ngh1 Rh8 Be3+ Rc5 Rg5 Rh5 Rg3 Re5 Rf5 Rc6 Nd7 Kc4 Bb6 Rec5 Ba7 Kd4 Nb6 Rc3 Rf7 R6c4 Rf5 Rc5
1RNr4/2N1pp2/N2nR1b1/q1Rbqb1n/2Bb3Q/2P2r2/r4RkB/nBK5 b - - 0 1 illegal: No proof kernel
1b4b1/1nPp1RNB/Q4q2/N1B1Nq1r/1Rn4q/2q1B3/1k1B1rp1/1r1RK1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 a5 b6 f5 b5 g5 c5 f3 c6 g3 h5 a4 h6 d3 h7 Kd4 b7 a3 e5 f2+ Kd2 a2 e6 g4 e7 f4 e8R g2 b6 f3 Nh3 g1N Rh2 g3 Rh1 g2 Re6 Bd6 Nf4 Nf6 Nh5 Ng4 Re7 Ne5 Na3 Na6 b8N Bb7 Qe2 Nc5 Rb1 a1Q Rf7 Qh4 Nc4 Qc3+ Kd1 d2 Rb4 Ra1 Na5+ Nc4 Ng7 Ra2 Ba3 Ba6 b7 Rb2 Qe6 Rc2 Bd3 f1Q+ Qe1 Qff2 Qf1 Qf6 Qe2 Q2h4 Bc1 f2 Be4 Re8 h8B Re5 Bh7 Rh5 Ba3 Nh3 Re1 f1Q Bc1 Ng1 c7 Q1f5 Qf1 Bg3 Qe2 Bf2 Qe6 Be3 Nbc6+ Kd3 b8B Nb7 Ba3 Ba7 Ne5+ Kd4 Bc1 Bb5 Rf1 Bc6 Ba3 Bd5 Qa6 Ra2 Rf8 Bg8 Rf7 Rc2 Bc1 Nf3 Ke2 d1R+ Bd2 Rb1 Rc1 Ng1+ Kd1 Qh2 Ke1 Ra2 Rd1 Rab2 Ng6 Kd3 Ne5+ Kc2 Ne8 Ra2 Bg7 Qh1 Bh6 Qhh3 Be3 Qh2 Ra4 Kb2 Ng7 Qhh4+ Bf2 Bc5 Ba7 Bd4 Bc5 Be3 Bf8 Ba7 Bc5 Bb8 Rb4+ Ka1 Be7 Qcg3 Bf4 Rd2 Bc5 Qc3 B2g3 Rf2+ Bd2 Ka2 Bf4 Ka3 Bfe3 Ka2 Ra4+ Kb2 Rb4+
2qR1N1R/1pr2B1N/5PRq/q1n1r1r1/5KBn/1Qn3Np/3rbB1b/k6B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 f4 Kf6 c4 h5 a4 d5 g4 e5 a5 h3 a6 b3 c5 h4 c6 e4 a7 b2 c7 d3 Ke3 d4+ Kf2 e3+ Kf3 d2 Ba6 d3 Qe1 d1N Qb4 e2 Qa5 e1R Nd2 b1Q Ra4 h2 Qd5 Nc3 Qb3 Rh5 Ne2 Qa2 Bb5 Na6 Ng3 Nc5 Bc6 Rg5 Ra6 Qa5 Rb6 Rb8 a8R Bd6 Rba6 Be6 c8B Bc4 B8d7 Rc8 Nde4+ Kg7 Be3 d2 Bd5 d1R Bf2 Rc7 Nf6 Ne7 Nh7 Re5 f6+ Kg6 f7 Rd2 Rd1 Qc8 f8N+ Kg7 f5 h1Q+ Kf4 Be2 Bf7 h3 Bc6 Qd5 Rb8 Qde6 Bh1 Qh6 Rb6 Nc6 Bh5 Nd4 Rc6 Nf3 Ra6 Rg6+ g5 Nh4 Bg4 Qe6 Rd8 Qc8 Ne6+ Kf7 Rg1 Ke7 Ra8 Rg7 Rh8 Kd7 Rg2 Kc6 f6 Rg6 Nef8 Rgg7 Qa4+ Kd5 Qc2 Kc4 Qb3+ Kd3 Rb8 Qe6 Rd8 Qc8 Qc4+ Kc2 Qe6 Qh5 g6 Kb1 Qg8 Ka1 Qb3 Rgd7 g7 Qh6+ Ng5 Rde7 g8B Rg7 Bc4 Qh5 Ngh7 Rgg5 Bce6 Qh6 Bf7 Qa4+ Ne4 Rgf5+ Kg3 Qa5 Bf3 Red5+ Kg4 Bh2 Rg3 Rg5+ Kf4 Rde5 B3h5 Bg1 Rg4 Bh2+ Ng3 Rg7+ Rg5 Rg6 Bg4 Qg7 Rh5 Rgg5 Rh6 Qg6 Bg1 Qh5 Rg6 Qh6 Bf2
3KR1n1/pP1Nnr2/q2R4/2Nb2q1/pb1n2Bk/B1BNr2N/2Q2n1b/3rR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 g4 c5 d4 h5 e4 c4 b4 h3 b5 c3 b6 h2 b7 h4 d6 h3 d5 c2 d7 Ne7 Ke6 Nbc6 d6 Rb8 e5 Rh7 Be2 Kh4 g5 f3 g6 f4 g7 f2 g8N f1Q Ba3 c1B Nc3 f3 Nd5 f2 Ngf6 Ng8 Bg4 Qa6 Nb4 f1R Nd3 Nce7 Qc2 Bf4 Re1 Rf3 Rd1 Re3 Rd2 Rh5 Kf7 Rf5 e6 Qda5 Ke8 Qe5 Nd5 Rf7 d8B Qg5 Ba5 Ra8 Kd8 Bd7+ Kc7 Rd8 Nf6 Bc6 Nd7 Bd5 Bc3 Bg3 Ne2 Be5 Re1 h1N Ng1 h2 Nh3 Nf2 Rdd1 h1N Rd2 Nc6 e7 Ng3 e8R Nf5 Rdd1 Nfe7 Rd2 Ra8 Rdd1 Bh2 Rd2 Nb8 Kd8 Qf4 N7e5 Qb5 d7 Be4 Nc1 Nbc6+ Kc7 Rd8 Rh1 Ng6 Re1 Bb4 Rd4 Ng6e7 Rd3 Ra8 d8N Qg5 Ne6 Rd8 Nc5 Qa6 Rd4 Rd6 Ned7 Bg2 Rf4 Be4 Rf6 Rd1+ Rd6 Nd4 Kd8 Bd5 N1d3
3Nb1BK/NrBQ2R1/1b1rb1N1/6b1/1p1Pn2p/b3N2q/kn1n2RB/1R1b4 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 c5 Kf4 b5 Kg5 h5 f4 h3 d4 h2 a4 b3 g4 e3 d6 Ke6 Kg6 Kd5 f5 e5 d7 c4 a5 h4 f6 c3 f7 c2 a6 e4 g5 e2 a7 Kc4 Bf4 c1B Bg2 e1N Ra2 b2 Bc7 e3 Bf4 e2 Be3 Nf3 Bh3 e1B Bf4 Ba5 Nc3 Nd2 Nge2 Bb6 Nd5 Ba3 Kg7 b1B f8B b4 g6 Nf6 Bc7 Nc6 Qa4 Rh6 Nef4 Ne5 Be6 Bc2 Bg8 Nd3 Bfd6 Rb8 a8N Rb7 Ne3+ Kc3 Rg1 h1B Rb2 Qe8 d8N Bd1 Rb1 Bc6 Rg2 Qe6 Qb5 Be8 Qd7 Qh3 Be5 Nh7 Kh8 Nb2 g7 Rd6 Ng6 Nf6 Bh2 Nfe4 Bb3 Bc5 g8R Ba7 Rg7 Bb6 Qf7 Be6 Qd7 Bf5 Bg8 Be6 Be5 Kb3 Bh2 Ba7 Nb6 Ka2 Nc8 Bb6 Na7 Nb3 Nc4 Bg5 Ne3 Nbd2 Rg1 Bd5 Rg3 Be6 Rg2
7r/4Q2R/BpK2Rr1/r1nR1bb1/6rB/2rPN1Rr/2q1p1nk/2BbN2N b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 Kb5 c5 f4 c4 a4 h3 g4 c3 d3 b3 f5 b6 g5 h4 f6 b2 a5 c2 a6 h2 g6 h3 a7 e3 g7 e4 f7 Ke5 d6 Kf4 d7 Kg3 Nc3 b1R+ Bb2 c1R Ra5 e2 Nd5 e1R Ra2 e3 Qd2 Rc3 Nf3 Nf6 g8N Na6 Nge7 Nc5 Ra5 Ng4 Qe2 Bh6 f8R Qc7 d8B Bf5 Bg2 Rg1 Ne1 Bg5 Rf6 Ra1 Bf3 Ra4 Bc1 Rg2 Rg1 h1B Be4 h2 Bf3 Qf4 Kc6 Qc4 Rb5 Ra5 Be4 Rb8 a8R Qa2 Ra7 Qc2 Rc7 Kh3 Rd7 Rg3 Rc7 Bf3 Rg2 h1R Rg1 Bc8 Nf5 Rg2 Re7 Kh2 Ng3 Bf5 Rg7 Rh6 Be7 Rbh8 Rh7 Nf2 Bd8 Nh3 Be7 Bh5 Bf3 Rg6 Bg4 Be4 Bc8 Bf5 Ba6 Nf4 Bd8 Kh3 Be7 Rhh2 Nh1 Rg4 Bd6 Ng2 Bg3 Rf4 Bh4 Bf3 Qf2 Bd1 Qf1 e2 Ne3 Rd4 Qf4 Re4 Qd6 Rea4 Qe7 Rg4 Rb4 Ra4 Rd4 Ra5 Ng3 Rh1 Rd5 Kh2 Rf1 Rg1 Rf3 Rf1 Nh1 Rf2 Rf4 Rf3 Ra4 Rh3 Rf4 Be6 Rf3 Bf5 Rg3
4RK1N/1n2rPpb/rNnb4/bB1b1R2/5bQR/1k1B4/B1NB1p1r/q4b2 b - - 0 1 illegal: No proof kernel
Bn2B1r1/P1B2k2/3Qb2p/1N1q4/bBN2n1r/1p1N3R/1Kbbb3/R3bnR1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 b5 Kd2 c5 Kc2 f5 a4 c4 g4 h3 e4 f3 e5 h2 g5 h6 g6 f2 a5 f4 g7 f3 d6 c3 a6 Qd7 e6 Ne7 g8R Nd5 e7 Nf4 d5 Kf7 Bg2 f1N Ne2 f2 Bd2 b3+ Kc1 c2 a7 b4 Na3 Bg7 Nb5 Bc3 Rg1 h1B Rg3 Rg8 Rh3 Rg4 Bf3 Qd8 d7 Rh4 d6 Qa5 d8B Be6 Bb7 Bc6 d7 Qa2 Bc7 Qa5 Be3 Be1 Bc5 Qa2 Qd6 Qa5 Na3 Ba4 Nc3 Qb5 Kb2 c1B+ Kb1 b2 Nc4 Qc6 Nb5 Bcd2 Ka2 b1B+ Kb2 b3 Bb4 Qd5 d8N+ Kf6 Bc6 Bc2 Nb7 Kf7 Nc5 Nd7 Re3 Rg8 Ba8 Nb8 Rc3 Nh2 Rh3 f1B Nd3 Be2 Rh1 Nf1 e8B+ Kg7 Rg1+ Kf6 Bec6 Kf7 Be8+
3qbB2/1nB3r1/BKN2Rb1/3R2bR/1k1rP3/4b1r1/b2ppN1n/r2Q1RN1 b - - 0 1 illegal: No proof kernel
RqB4N/bnN1KR2/1b5N/br2NPn1/3B2b1/1k1p1rq1/Q2bp2b/2R3B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Ke6 c4 g5 f4 d5 b4 a5 b6 d3 Kc3 d4+ Kb3 g3 b5 e3 h5 g4 h6 a4+ Kb4 d2 Kc5 g2 h7 e2 b7 e1B b6 a3 Qf3 d1Q Ra2 g3 Ra1 a2 Qf2 d3 Rh4 Nc6 b8B Qg4 b7 Bd2 Ba7 Nh6 b8R Na5 Bb2 Nf7 Nc3 Ng5 Nf3 g1B Rc1 a1B Bh3 g2 Nb5 Bh2 Qf1 g1B+ Bd4 Bac3 Ne5 Nb7+ Kc6 Bge3 c5 Ba5 Qe1 Rg8 h8N Bg7 Rh7 Rf8 Bb6 Qe8+ Kc7 Kd5 c6 Qg3 Bd7 Ra7 Ra8 Rf6 Bh3 Bg4 Qd1 Bh6 Rf7 e6 Qe1 Qb8+ Kd7 Bf8 c7 Bc5 c8N Bf2 Bc7 Bcb6 Ke7 Ra6 Bd6 Ba7 Qd1 Rb6 B6c5 Bfe3 Ncd6 Beg1 Nf3 e5 Nf5 e4 Nh6 e3 Ne5 e2 Qa4 Bge3 Qa1 Bf2 Nd6 Rb5 Ne8 Bfe1 Bg1 B5b6 Bcd4 Bda5 Nc6 Bec3 Nc7+ Kc4 Ne5+ Kb3 f5 Rg6 Bg2 Bd2 Bc6 Rg8 Bd7 Rg7 Bc8 Rh7 Ng8 Rh3 Nh6 Qg2 Ne6 Rf3 Nc7 Qg3 Qa2+
QNr2B2/n2R1rp1/1nNk4/2Nb1Pb1/bB5p/2NK3B/1qr2brR/1R4b1 b - - 0 1 illegal: No proof kernel
1R1nB2k/2rpK3/r1p2n2/1R1N1Nn1/B3N1r1/RQ1P1r2/3rb1Bq/b1B1n3 b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 axb5 g5 c4 gxh4 c5 Nc6 Kf2 Nd4 Ke1 Nc2+ Kf2 Bxc5+ Kf3 Bd6 Kf2 Bf8 Kf3 f5 g4 Kf7 b4 Kg7 e4 a5 e5 h5 e6 h3 e7 h4 e8B h2 b6 c6 b5 a4 g5 h3 b7 a3 b8N a2 g6 Ne1+ Kf2 f3 Kg3 f2 Kf4 Ba6 Ke5 f4 b6 f3 b7 Qc7+ Kf5 Nf6 Bd3 f1R Bc2 f2 Bf7 Be2 d3 Ra6 Nf3 Rg1 Nfd2 f1R+ Nf3 Rg4 Rg1 h1R Be8 h2 Nd2 Bc5 Rg3 Bd4 Ba4 Rg8 Rg2 Kh8 Ne4 Rhg1 Rf2 h1N Nh4 Qh2 Qb3 R1g2 Rf3 Nf2 g7+ Kh7 Rf4 Nh3 Rf2 Rf8 g8B+ Kh8 Bd5 Ng5 Kg6 Bb2 Rf5 Rf3 Re5 Bd4 Nf5 Bc3 Bc4 Rgf2 Rb5 Bb2 Bd5 Rfg2 Rb1 a1N Ra5 Rgf2 Rb5 Nac2 Ra1 Nd4 Ra3 Rb6 Na6 Nde6 b8R Nd8 Nb4 Ra6 Nd2 Bd4 Be4 Ba1 Nd5 Rff4 Bg2 Rb4 Ra5 Rb7 Ne4 Rc7 Rc5 Bf1 Rcb5 Rd2 Nd4 Be2 Kf5 Qh7+ Ke5 Qh6 Kd6 Qh2+ Ke7 Nh5 Qd1 Rf3 Qb3 Nf6 Nf5
4rR2/1K2Rbq1/3Qb2n/2BnPpb1/1B3nB1/1R1Nr1k1/6pr/N1rbR2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 c4 g5 e4 f5 b4 a5 e5 f3 h3 f2 b6 a4 b7 d3 b5 g3 b6 g2 c5 d2 c6 a3 c7 a2 Ba3 g4 Bb4 g3 Be2 f1B Bg4 Be7 Na3 Nh6 Nc2 Na6 b8B Bg5 b7 Qf8 Ba7 Qg7 b8R Bc4+ Kd6 Bd5 Bac5 Bf7 Rb1 a1R Rb7 Ra5 Rb3 Ra3 Na1 Re8 Ne2 g1N Nc1 g2 Nd3 Kg3 h4 Ne2 h5 Nf4 Re1 Ra7 Qc2 d1R Qd2 Rc1 Qd1 Ng8 h6 Ra8 h7 Nh6 h8R Ra7 Ba5 Nb4 Rf8 Nbd5 Bc3 R7a4 Ra7 Re4 B3b4 Re3 Qd2 Ba6 c8N Bc4 Bd4 Ra4 Kc5 d6+ Kc6 Ra6+ Kb7 Rc6 Re2 Rh1 Re1 Rh2 Rbb1 Ba2 Rb3 Rc1 Bdc5 Nc3 Nf2 d5 Nd6 d4 Nc4 d3 Nb2 Ncd5 Qd1 d2 Nbd3 Be7 Kc6 Bf6 Re7 Bg5 Kb7 Be6 Qc2 d1B Qc4 Bg8 Qa6 Bf7 Qd6 Nc7 Rb2 Bae6 Rb3 Ncd5 Nh1+
r3nnN1/Q7/RN2bpP1/K1bb1BnR/3B2B1/2k1rr2/pr1RR1N1/5bq1 b - - 0 1 illegal: No possible last move, all moves rejected
1nk2n2/1N1qRbr1/N1pn4/3R3N/b3Qr2/1pR2BrP/1b2bNr1/1K1BB3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 d4 b5 Kd2 f5 Kc2 g5 e4 c6 e5 g3 a5 f3 h3 f4 a6 g2 a7 b3+ Kb2 f2 d6 f3 d5 b4 Qd3 g4 Ne2 g1R Bg5 g3 Nd2 g2 Kb1 b2 Ng3 Bg7 Nde4 Nf6 Ra3 Nh7 Rc3 Rf8 Bh4 Rf4 Nh5 Nf8 Qc4 Ba6 e6+ Kc8 e7 Bb5 e8B Qd7 Qd4 Be2 Rh2 Bd1 Be2 f1B Be1 f2 Bf3 Bfe2 Rh1 f1B Nf2 Bb3 Qe4 Ba4 Bg6 Bc4 Bf5 Bfe2 B5g4 Rf1 Rh2 g1R Rh1 Rg2 Rg1 Qf5 Rh1 Rfg1 d7+ Kc7 d8R Qd7 d6+ Kb7 Qe8 Bf7 Qe4 Rg3 Re8 R1g2 Re7 Kc8 Rf1 Na6 Rg1 Rb8 a8N Rb7 Nc7 Nb8 Na6 Bd4 Rc5 Rc7 Rd5 Bg7 Ka2 b1N Rh1 Na3 Rh2 Nc4 Kb1 b3 Rh1 Qf5 d7+ Kb7 d8N+ Kc8 Nb7 Nd6 Rg1 Bb2 Rf1 Beb5 Bd1 Qd7 Bgf3 Bc4 Ng4 Be2 Rf2 Beb5 Rc2 Be2 Nf2 Qd8 Qe3 Be6 Re8 Rcg7 Re7 Bf7 Qe4 Qd7 Rc3
4b1bq/4BQ1n/2pnRR2/1N1N1P1n/1rb1rbN1/k3R2r/3Kp3/2nB1B1B b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kd7 f4 Kd6 a4 Kc5 d6 h5 g5 e5 d3 b5 d7 c6 g6 e3 f5 h3 a5 b3 d4+ Kb4 g7 b2 a6 h2 a7 e4 d5 h4 d6 h3 Bd3 Nf6 g8B Ne8 Bb3 Bh6 Bbc4 Bf4 Nd2 b1B Ra3 Ba2 Nb3 Ba6 Qe2 Qf6 d8N Nd7 Qh5 Nf8 d7 Bc8 Ne6 Rh7 d8R Qh8 Qe2 Bd7 Qg2 Rb8 Nc7 Re7 a8B Nh7 Ne2 Rb7 Rg1 h1N Na1 h2 Qg8 Ng3 Bb3 h1R Bd1 Rh3 Rb3+ Ka4 Nc2 b4 Ba3 Nh5 Rg6 Re6 Rc3 b3 Be7 b2 Rf6 Rb4 Bb7 b1B Bba6 Re5 Qg7 Bg8 Qf7 Ba2 Bac4 Bb3 Bd5 Bc4 Rb3 Bc8 Rdd6 Bd7 Rde6 Nd6 Nc1 Be8 Bf1 Rf3 Rd3 Rg3 Na2 Rh3 Nc3+ Kb3 Nd4+ Ka3 Nf3 e2 Kf2 e1N Ke2 e3 Nh2 Bg5 Ng4 Bf4 Bh1 Re4 N7d5 Nc2 Rh6 Na1 Rhf6 Nb3 Ke1 e2 Re3 Nc1 Kd2 Rh2 Bb3 Rh4 Bd1 Rh3 Nb5+
N1KR4/3RP3/n1Q5/bNr2b1b/p3R1nR/n2r1q1B/r3p2N/krB3Bb b - - 0 1 illegal: No proof kernel
1Kn5/PB1R2p1/1B1BB1Qr/3r3N/kn1b3n/2nRb2r/p1b3qR/5NNb b - - 0 1 illegal: No proof kernel
b1Rnq1B1/2R5/n3Rb1R/2pn1kb1/1NN1Q3/n1P4q/B3r2p/Nr2bB1K b - - 0 1 legal: proof: e4 b5 d4 g5 a4 e5 axb5 f6 h4 gxh4 Bf4 exd4 e5 Nh6 e6 Ng8 Be5 fxe5 g4 Ke7 b4 Kf6 f4 c5 Kf2 a5 Kg2 h5 b6 d5 f5 e4 b7 h3+ Kh2 d3 e7 h4 e8B d2 b5 d4 b6 a4 Ba6 e3 Bd3 e2 Bc6 e1B Be2 d3 Be8 a3 Nf3 a2 Bf7 Bh6 Nd4 Ne7 Nb3 Bg5 Bf1 Re8 Qe2 d1N Qe4 d2 Na3 Nb2 Nc4 Na6 b8R d1N Rb7 Rb8 Rc7 Nc6 b7 Nc3 Rc1 Nd5 Na1 Re6 Kg1 h2+ Kg2 Bc3 Re1 Qe8 Re2 Nd8 Bg8 Ra8 b8N Be1 Nc6 Rb8 Nb4 Bb7 Bf7 Ba8 Re3 Kg7 f6+ Kh6 Bg8 Re7 f7 h3+ Kf3 Kg7 f8R Rb7 Bf7 Kf6 Re2 Nd1 Rh8 N1c3 Bg8 Nb5 Re3 Bgh4 Re2 Na3 g5+ Kg7 g6 Kf6 g7 Bg5 Bf7 Rb5 g8B Re5 Nb3 a1B Re3 Bd4 c3 Rb7 Na1 Re7 Qh4 Kf5 Re6 Bdf6 Rh6 Rb6 Rg1 h1Q+ Rg2 Be3 Rc8 Qh2 Rg7 Beg5 Rgh7 Qd6 Rg7 h2 Kg2 Qg3+ Kh1 Qd3 Na2 Rb2 Nb4 Qh3 Qd4 Rb1 Qe5+ Kg4 Qe4+ Nf4 Rd6 Rd7 Rb6 Rdd1 Na5 Rd2 Ba2 Rg2 Re6 Re2 Qg2+ Kf5 Nc4 Nd5 Rgc7 Re3 Qe2 Re5 Qg2 Re2 Qe4+
1Kn3qN/B5b1/NBNp1qnP/b6Q/2b2qp1/1B1r2k1/bR1q2NR/1r1R4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 e4 a5 b4 f5 h4 g5 b6 d6 Kb5 a4 c4 d3 c5 d2 h5 g3 b7 f3 h6 Kf4 c6 f2 e5 g2 c7 a3 Kb6 a2 b5 Qe7 e6 Ra5 Rh2 Kg3 Nf3 g1Q Na3 f4 Nc4 Nc6 b8N Qf6 e7 Bg7 e8R Nge7 Nd4 f3 Na6 Ne5 Ka7 N5g6 b6 Be6 c8N Ra3 b7 Rd3 b8B Rf8 Bh3 f1Q Ne3 f2 Qh5 d1Q Ng2 Qd2 Nc6 Rg8 Rb1 a1B Rb2 Ba2 Be6 Rh8 Bb3 Qff4 Rc2 Bac3 Rb2 Ba5 Ka8 Rf8 Ba7 Rf5 Kb8 Rb5+ Nb6 Nc8 Re1 g4 Rd1 Qh1 Ne3 Qd5 Ng2 Qde3 Bd2 Qg8 Bb4 Qed4 Bc5 Qdf6 Be3 Qe1 Bd4 f1B Be3 Rg5 Nd5 Qd2 Nde7 Rc5 Bd4 Rc1 Bdb6 Ra1 Ne5 Rb1 Nf7 Re3 Nc6 Bc4 Nh8 Rf3 Nh4 Rd3 Ng2
6bq/1qPBNq1k/3Rbp1r/N1bR4/n3qr1p/4R3/3K2RQ/1BN2bBn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 b4 a5 g4 h5 c4 f6 e5 Kf7 g5 Kg6 c5 f3 c6 f2+ Kd2 h3 c7 h4 b6 d3 e6 a4 b7 d4 e7 h2 e8B+ Kh7 b5 a3 b6 a2 Na3 Bc5 Bb5 Na6 b8N Nh6 b7 Be6 Bc6 Nf5 Qc2 Ng3 Nc4 Qe7 Ba3 Qf7 Rd1 a1Q Na5 Qb1 Ne2 Ra7 Bfg2 f1B Nc1 Qb5 Rg1 h1Q Bd7 Qb3 Bd5 Qe4 Nbc6 Nh1 b8R Qb7 Ne7 Ra8 Re1 Ra7 Re3 Ra8 Kd1 d2 Rg2 Ra7 Ba2 Ra8 Qd3 Ra7 Kc2 d1B+ Kd2 Bdb3 Qe2 d3 Bb1 Ba2 Rd8 Ra8 Kc3 d2 Bb2 d1Q g6+ Kh6 g7 Kh7 Qf2 Qdh5 g8R Kh6 Qg1 Bed5 Rgf8 Qfh7 Bc6 Bd6 Ba1 Nc5 Be8 Qeg6 Kd2 Bg8 Re6 Qhf7 Nac6 Ra4 Qh2 Rf4 Bd4 Na4 Na5 Bc5 Re5 Bd5 Bg1 Be6 Re3 Qge4 Rd5 Rh7 Rf2 Kg7 Rg2+ Kh8 Bc6 Qh6 Bb5 Qhg7 Re8 Rh6 Red8 Kh7 R8d6 Qh8 Bd7
rn2q2N/pN1BPr1b/2qB4/7n/N2B1Rqq/k1bB1npQ/1RK4n/7R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kd6 h4 Kc5 c4 Kb4 h5 g5 e5 d5 b6 f5 c5 g3 b7 g2 c6 g4 e6 g3 e7 f3 c7 f2 b3 f4 h6 d3 h7 d4 Rh4 f3 Nh3 g1N Ng5 Qe8 Rg4 Nf6 Nc3 Bf5 c8B Bg7 Ne6 Rf8 h8N Bh7 Nc5 Rf7 Bb2 Nh5 Bd7 Bf6 Be2 f1Q Rf4 f2 N3a4 Qg2 Qf1 Qc6 Qh3 f1N+ Kd1 d2 Bd3 Bg7 Kc2 Nf3 Rd1 N1h2 Rh1 Be5 Bc3+ Ka3 b4 Bc7 b5 Ba5 b6 Bb4 Ba1 Bc3 Rc1 Na6 b8R d1Q+ Kb1 Qe2 Rh1 Qee4 Rb7 Nb8 Kc2 Qg8 Rc7 Qe8 b7 Qf6 Rc6 Qh4 Rb6 Qd5 Rb2 Qc6 B3f5 Na6 b8B d3+ Kb1 d2 Bd6 Nb8 Bd3 Bg6 Kc2 Bh7 Rbb4 Bg7 Bd4 d1Q+ Kc3 Qe2 Rb2 Qe6 Kc2 Qeg4 Bg1 Bc3 Bd4 Qc7 Nb7+ Qc5 B6e5 Qc6 Bd6+
3nkr2/nnBpn3/5rn1/Q3p2K/B1r2R2/R2P1r1N/q2Nb3/NBNqR3 b - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 c3 fxe4 Ba3 g5 Bc1 gxh4 Bb5 b3 Bb2 Bg7 Ba4 b5 Ba3 b4 Bc1 b2 Bb5 b3 Bf1 Be5 Rh3 Bd6 Rh1 Bb4 cxb4 Bb7 Be2 Ba6 Bf1 Bc8 Ke2 c5 f4 h5 g4 c4 a4 e6 g5 c3 g6 h3 f5 c2 f6 e3 Kf3 h4 Kg4 h2 a5 e2 b5 e1N b6 h3 g7 Ng2 b7 Rh6 a6 Ne7 g8N Qa5 a7 Qa2 Bb5 Nf4 Ne2 Nbc6 b8N Ba6 Qe1 Nd8 Nc6 Nfg6 Na5 e5 Ba4 Rc8 a8B Rc4+ Be4 Rh8 Rg1 h1R Nh6 h2 Nf7 Rf8 Ng5 Bb5 Rg3 Rf1 Nh3 Rf3 Kh5 h1N Bd3 Nf2 Bf5 Nd3 Rg1 Ndc6 Rg3 Nc5 f7+ Kd8 Rg1 Nb7 Bd3 Rcf4 Rh1 Rf6 Rf1 Re8 f8R Ba6 Rf7 Rf8 Rg1 Ke8 Rg3 Re6 Rf4 Ref6 Rg1 Ncd8 Rh1 Qa3 Ra2 Qd6 Ra3 Qd4 Qf2 Qd6 Qb6 Qd4 Re1 Qf2 Nbc3 b1Q Ne4 b2 Nb3 Qa1 Qb4 b1N Qa5 Nc3 Bb2 c1R Bb1 Rc2 Nec1 Be2 d3 Nb5 Bd4 Rc4 Bb6 Na7 Ned2 Qf1 Bc7 Qa2 Na1 Qh1 Rf1 Qg1 Rf2 Qe1 Rf1 Qd1 Re1
2kb2R1/1b1B1Qp1/rpn5/3n2PN/bB1q2R1/nq3b2/B1q2N1R/1NqB1K2 b - - 0 1 illegal: No proof kernel
1r3kb1/2BB1b2/B1rb1RNb/R3N3/2p1K1Q1/rb2n2N/p1PR1Nr1/2nb4 b - - 0 1 legal: proof: e4 g5 a4 d5 f4 gxf4 g4 dxe4 h4 b5 h5 Qd6 g5 Qg6 hxg6 bxa4 Ke2 a5 d4 e5 b4 c5 d5 h5 b5 f5 d6 e3 Kd3 e4+ Kc4 a3 Kd5 e2 b6 e1R b7 f3 g7 a4 g6 f2 Qd4 h4 Bf4 h3 Bc4 f1B Qd3 h2 Qf3 e3 Qg3 a2 Ne2 a3 Bb3 Rh6 Qh4 Nd7 b8N Ngf6+ Ke6 Ne5+ Nd7 Nd3 g8B Nd5 Be5 f4 Kf5 f3 g7 f2 Bc4 Nc1 Be6 Rb8 Ng1 e2 g8N Ne3+ Kf4 Rf6+ Ke4 Bh6 Nb6 Kf8 Bf7 Bg4 d7 Rc6 Qh5 Rd1 Be8 e1B d8R Rd2 Bb5 Bd1 Bc7 Bc4 Nc3 f1B Ba6 Rg2 Ne7 Bb3 Rd2 Bg3 Bd7 Bd6 Qg4 Bfc4 Nh3 Bf7 Rf1 h1B Rf6 c4 Ng6+ Kg8 Rb1 a1R Rb2 Kg7 Ra2 Kg8 Nbd5 Kg7 Ne5+ Kf8 Ndf4 Rf2+ Kd4 Bd5 Ne4 Rg2 Nef2 Be6 Rg6 Bg8 Ke4 Bef7 Rb2 Ba4 Rb5 Bb3 Ra5 a2 Rf6 Rb1 Rc5 Ra8 Bb5 Ra3 Ba6 Ba4 Rcd5 Rb8 Ra5 Bb3 Nfg6+
kbK5/1B2bRrr/B1bBP1pn/2B5/R1N3Nq/qq1RnN2/2Q1p2p/1r6 b - - 0 1 illegal: No possible last move
NN1N3q/qRB5/p4bkq/4n3/rbQpKn2/1pB1br2/PR3B2/3r2RB b - - 0 1 legal: proof: c4 c5 b4 cxb4 e4 h5 g4 hxg4 e5 b6 d3 Ba6 c5 Bc4 e6 fxe6 dxc4 e5 Bg5 e4 Be3 Na6 Bc1 Nb8 Kd2 Kf7 Ke3 d5 h4 e5 f4 g5 c6 b3 c5 b2 c7 g3 c8R g2 f5 b5 h5 b4 c6 b3 c7 g4 h6 g3 f6 Be7 h7 Nc6 Rh2 Kg6 f7 Bf6 f8B Nge7 Nd2 b1R Ne2 g1B+ Rf2 a6 Nc4 g2 Qd4 Rg8 Bb2 Rd1 h8B Rb8 Qd3 Rb4 Bc3 Ra4 Nb6 Rg7 Nd4 Rf7 Bh6 Qg8 B8g7 Qh8 Qc4 Rf8 Ne6 d4+ Ke2 e3 Kf3 e2 Na8 e1Q Nd8 Qd2 Be3 Nd5 Rb8 Nf4 c8N Qc1 Na7 e4+ Kg4 Rf7 Rb7 Ne5+ Kg3 Rf8 Rb2 Qd2 Bf2 e3 Rc1 e2 Nac6 e1B Nb8 Rf7 Be2 Qe3+ Bf3 Bd2 Ba5 Bb4 Bf8 Qd2 Bd6 Rf8 Bdc7 Rf7 Be1 Be3 Bf2 g1Q+ Bg2 Qf1 Bh1 Qfd3 Rcb1 Qe4 Ra1 Qd5 Rc1 Qc5 Ra1 Qa7 Rab1 Ng4 Kf3 Ne5+ Ke4 Rf8 Bg1 Qdh2 Bf2 Q2h6 Rc1 Rd2 Rf1 Rd1 Rg1+ Bg5 Qc2 Bc3 Nbc6 Nd5 Be1 Rf3 Bf2 Nf4 Nb8 Be1 Qc4 B1d2 Re1 Bf6 Rf1 Bb4 Re1 Bd6 Bc3 Bb4 Rg1+
3Q1NNq/1k1rp1bN/1BB5/4R2b/R1n3Bp/nnKp1Rrq/2P4q/1r2N3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 h5 b4 a5 f4 d5 g4 Kd7 g5 Kc7 b6+ Kb7 b5 e3+ Kd3 h3 g6 a4 g7 a3 f5 e2 f6 e1R f7 h4 Qd2 h2 Qa5 a2 Nf3 Bg4 Be3 Na6 Nc3 Nh6 g8B Rb1 Ne4 Bg7 f8N Nf5 Be6 Nd6 Nh7 Nc7 Ne1 Bh5 Nef6 Nc4 Ng8 Ra7 Bg4 Qf8 Rg1 h1Q Rg3 Qh3 Rf3 Qf4 Qd2 Qfh2 Bf2 Na8 Qa5 Na3 Kd2 d3 Be2 Bf8 Kc3 d2 Bf1 d1Q Bd3 Kb8 b7 Nb6 Bc4 Kc7 b8N Kb7 Nd7 Bg7+ Bd4 Qde2 Ndf8 Qee5 Bd3 Nbc4 Qd8 Qb8 b6 Qbe5 Nhf6 Rh6 N6h7 Rg6 Bf1 Bh6 Bd3 Qh8 Be2 Bg7 Bd3 Kc6 b7 Rg5 b8R Rd7 Ra8 Kb7 Ra5 Rg6 Be6 Rg1 Bg4 Rg3 Ra4 Rb4 Rb1 a1N Rb3 Rb6 Rb5 Nb3 Rba5 Rf6 Bb6 d4+ Kb4 Rc6 Re5 Rc8 Be2 Rb8 Bf1 Nb2 Bb5 d3 Kc3 Nbc4 Rf2 Rc8 Rf6 Rc6 Rf3 Rf6 Rfe3 Rf1 Rf3 Rh1 Ng2 Rc1 Ne1 Rb1 Bc6+
2nb4/1q1pp1r1/B2B4/3N4/1N1P1n2/1KRRqNr1/pB1Q1nrR/2N1qk1b b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 c4 Kf7 f4 Kf6 g4 h5 c5 a5 f5 Ke5 d3 Kd4 Kd2 b3 b6 b2 Kc2 e3 f6 e2 b7 e1Q f7 h3 g5 h4 g6 h2 c6 h3 g7 a4 c7 a3 Bg5 a2 Bf6+ Ke3 Nd2 Kf2 Qg4 b1R Kc3 Rb2 Rd1 Ra3+ Kc4 Rh7 Ne2 Nc6 b8N Na7 Na6 Bb7 c8R Qb6 Rc5 Nc8 Be5 Nf6 g8N Nd5 Nb4 Bg7 f8B Nf4 Bd6 Bd4 Qg5 Rg7 Nf3 Bc3 Rc6 Qe3 Nf6 Bd4 Qa5 Bb6 Nfd5 Bd8 Nc1 Re2 d4 Ba8 Rd3 Rb3 Rg1 h1N Rg3 h2 Rh3 Reb2 Be2 Kg2 Rh7 Nf2 Rh6 h1Q Rh2+ Kg3 Bf1 Rg8 Bh6 Rg7 Kb5 Rc2 Ka4 Bb7 Rcc3 Ba8 Be2 Rcb2 Rh4 Kg2 Bg5 Bb7 Rh5 Rd2 Rh2+ Kg3 Ng1 Rbb2 Nf6 Ng4 Qa8 Qef3 Re3 Rd3 Nb3 Qg2 Qa6 Kf2 Bf1 Nh3 Bgf4 Rdd2 Qd3 Qfe2 Qc2 Rd3 Rg3 Be4 Bc1 Nf4 Qd1 Rc2 Bb2 Re3 Nc1 Qf3 Ba6 Ba8 Bb7 Kf1 Kb3 Qgf2 Rgg2 Qe4 Rd3 Rg3 Ba6 Qfe3 Re2 Qg2 Rd2 Qc6 Rc3+ Qb5 Rdd3 Bh1 Nd5 Rcg2 Qd2 Nf2 Nf3 Qb8 Ng1 Qb7 Nf3
rq6/PNpR1QKb/5NRr/BB2nR2/nB3Npq/4n3/5kp1/2qbb2B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 e4 b5 a4 f5 h4 g5 e5+ Ke7 a5 b3 a6 b2 d6+ Ke6 d7 Kd5 a7 Ke4 e6 b4 d5 b3 e7 f3 Kg3 f2 e8B Bh6 d6 Bg7 h5 Bh6 Bb5 f1Q Nh3 Na6 Nf4 Ne7 Nd2+ Ke3 Ra5 b1B Rg1 Ng6 Ba3 b2 Bb4 Ne5 Ne4 Nc5 Nf6 Na4 Qd5 Qc1 Qf7 Ba6 Bc6 Be2 Bh1 Bd1 Rb5 Qb8 d8N Bbc2 d7 b1Q Ba5 Qb4 Nb7 Bf8 d8B Rh6 Be7 Qd4 Ba3 Bb4 Bd7 Bc3 B3b4 Qe4 Rg2 Bd2 Rd5 Be1+ Rf2 Qc4 Bb5 Qd4 Rd7 Qe4 Kh2 g3+ Kh3 g2 Kg3 g4 Kh4 Qf3 Kg5 Qh3 Ng6 f4 Rf1 f3 Nf4 Rh8 h6 f2 h7 Qg3 Kh6 Qh4+ Kg7 Bf5 Rg1 f1N Nd3 Nd2 Rf1 Ndc4 Rf4 Be4 Rf5 Ke2 Nf4+ Kf2 Re7 Ne3 Rd7 Re8 h8R Re6 Rhh5 Rc6 Rfg5 Bh7 Rf5 Rb6 Rhg5 Ra6 N6h5 Rh6 Nf6 Qc6 Rg6 Qc5 Ba6 Qc1 Bb5
2qR3n/p3RbR1/N1n2P2/5k2/K4Bq1/NpQ1qB1r/Bpr1N3/b4Bbr b - - 0 1 illegal: No proof kernel
r1b2n2/q3B3/1p1b2bn/1R1B1RN1/pkp1PN1Q/r3n1R1/1N6/N1n2nBK b - - 0 1 illegal: No proof kernel
3kq1Rb/K1QN4/P2N1p1n/1r1NN1n1/2b2n2/pn5b/RBBpB2n/2r3R1 b - - 0 1 illegal: No proof kernel
n2r4/RNp2bR1/BQ3R1p/1r2pPB1/1r3b1q/rrN4N/1b2K1k1/2BBn3 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Kf6 d4 a5 b4 e5 d5 h6 g5+ Kf5 b6 e3 d6 Ke4 b7 h3 f5 c3 g6 c2 b5 h2 d7 e2 g7 a4 b6 a3 Kf2 e1R Qd6 a2 Qd1 Nf6 g8B Ra4 Bg5 c1B Ne2 Na6 b8R Nb4 b7 Nfd5 Bf4 Nc2 Ng1 Re3 Ba6 Rb3 Nh3 Nb6 Qd6 Na8 Rg1 h1R Rg7 Rab4 Qb6 Ne1 Ke2 Qh4 d8N Be6 Bg5 Bf4 Bf7 Rb5 Bh5 Ba3 Rc8 Bd5 b8B Bf7 Ba7 Bb2 Nb7 Rg1 Rd8 Rg4 Rd6 Rf8 Rf6 Rd8 Kf1 Kf3 Nc3 Kg3 Ke2 Kg2 Qe6 Rg3 Be3 R3b4 Bc1 Rgd3 Qb6 Rf3 Rb1 a1R Bg4 Ra3 Ra1 Rc5 Bd3 Rab3 Ra7 Ra3 Ba6 Rcb5 Nb1 Rfb3 Nc3 Kg3 Kf1 Kh2 Bd1 Kh1 Ke2 Kh2 Nd5 Kg2 Nc3
k1B1nQ2/R4r2/1brNnRqb/B2R1Rp1/1rN3r1/6p1/Ppb3B1/1n3KN1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Kd7 d4 g5 e4 c5 d6 Kc6 h5 f5 e5 b5 d5+ Kb7 e6 f3 e7 b3 e8B b4 d7 f4 h6 b2 h7 b3 d6 c4 Rh2 c3 Rc2 g3 Ne2 Qf6 d8R Nc6 d7 Rb8 Qd5 f2+ Kd1 f3 Na3 b1N Nb5 b2 Bd2 Qg6 Qf7 Bh6 Nd6+ Ka8 Qf8 Nf6 Nc4 Nd4 Bg2 Ne6 Ng1 f1R+ Be1 Rb3 Rf2 Rb4 Bf7 Rg8 h8R Ne8 Rh7 Rg7 Bg8 Rf7 Rg7 Rf4 Rf7 Rg4 Rf5 Na3 Rc1 c2+ Kd2 Nb1+ Kd3 Ra4 Ba5 Rb4 Re1 c1B Re3 Nd4 Re7 Be3 Be6 Rc1 Rf7 Nb3 Rf6 Bb6 Rc2 Nd4 Rc3 Nc6 Ra3 f2 Ke2 Rc3 Kf1 Rc2 Rd5 Nd4 Bf5 Ne6 Ra4 N8c7 Re8 Rc3 d8N Ba6 Re7 Ne8 Ref7 Bb5 Ra3 Ba4 Nb7 Bb3 Nbd6 Bc2 Ne3 Rc6 Nec4 Nc5 Bc8 Ne6 Ke2 f1R Rff5 Rf3 R7f6 Rc3 Kf1 Rc7 Ne5 R3c6 Nec4 Rf7 Re3 N6c7 Re7 Ne6 Ra7+
Bb1KRrN1/3BNQ2/1k2pnn1/nP1bB2R/rnr5/R1pq1p2/3R2N1/1b6 b - - 0 1 illegal: No proof kernel
2N1B3/1pr1q1pr/1p6/bP2Bb1b/2nk2n1/Rr3r1B/N1R1B1K1/1QRN1n2 b - - 0 1 legal: proof: f4 e5 g4 exf4 d4 h5 gxh5 c5 Qd2 cxd4 Qa5 Na6 Qc5 Nb8 Qb6 axb6 Kf2 Ke7 b4 Ke6 e4 Ke5 c4 f5 a4 d5 h4 f3 b5 f4 h6 d3 a5 d2 c5 d1R h5 d4 h7 d3 a6 d2 a7 Qd5 h6 Be6 c6 Na6 c7 Re1 c8B d1R Be2 Nb4 Ra3 Nc6 Nc3 Qd7 Nh3 Rd3 Na2 Kd4 e5 Bf5 e6 Na5 e7 Nf6 e8B Bb4 Bb2+ Bc3 Rg1 Rb1 Rc1 Qe7 Kg1 f2+ Kg2 f1N Nf2 Re3 Nd1 Nc4 Ba1 Rb8 a8R Rb3 Bcd7 Rd8 Rc8 Ng4 Bb2 Rh3 Rc7 Rf8 h8N Rc8 h7 Rf6 Rc5 Rc7 Nf7 Rfh6 h8Q Rh7 Nd6 f3+ Kg1 f2+ Kg2 Rf3 Nc8 Ke4 Rc6 Ba5 Be5 Kd5 Bh2 Kd4 Qf8 Bg6 Qf5 Bh5 Bf4 Nfd2 Qb1 f1B+ Kg1 Bh3 Bg3 Nce3 R6c2 Ndf1 Be6 Nc4 Kh1 Ngh2 Bd6 Bf5 Kg2 Bfg6 Bh3 Ng4 Bg3 Bf5 Be5+
Br1rbn2/1pnnP2p/N1RBq2B/8/kr1bB3/1R4R1/1N2Npb1/1K3nQ1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Kd7 Kd2 c5 Kc2 f5 g4 c4 a4 h3 e4 h2 e5 c3 d6 Kc6 e6 f3 a5 f4 g5 f2 d7 f3 a6 Ra7 g6 Qe8 d8B Nd7 g7 Bc5 Bg2 Kb5 d5 f1N d6 f2 Bh6 Bd4 Nd2 b3+ Kb1 b2 Ra3 Ngf6 g8R Nd5 Rg3 Nf8 d7 Ra8 a7 Rb8 a8B Nc7 Rb3+ Ka4 Be7 Qg6+ Be4 c2+ Ka2 b1R d8N Qf5 Nc4 Bd7 Bd6 Be8 e7 Qe6 Nc6 Rb2+ Ka1 c1N Ne2 Nd3 Nb4 Nc5 Na6 Ncd7 Rhg1 h1B Qe1 Rd2+ Kb1 Bg2 Rh1 Rg8 Rh5 Rg4 Rc5 Rg5 Rc6 Rb5 Qc1 Rb4 Nb2+ Kb5 Qd1 Bf6 Bg5 Ne3 Na4 Ne5 Bc5 Rdd8 Bd6 Ned7 Bh6 Bd4 Qh1 Nf1 Qg1 Ka5 Nb2 Kb5 Nd3 Ka4 Nb2+
rB3B1b/P1r3p1/p2NQ1p1/bb2nRrr/B3RN2/4Nq2/NKn4n/4R2k b - - 0 1 illegal: Other
1B2BR2/p1n2bKp/q2n2N1/N5N1/6RQ/b4npP/5rbr/1BkNR1nr b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 c4 e3 f4 e2 h3 Kd3 c5 g3 f5 e5+ f6 e4 b6 g2 b7 b3 c6 b2 c7 e3 Ra4 Be6 c8B Qd6 f7 Nf6 Qe1 Kc2 d4 Na6 b8R Nc7 d5 Nfe8 Rg4 Qa6 d6 Rg8 d7 Ba3 d8N Nd6 f8N Bf7 Qh4 e1N Bb5 e2 Nc3 b1B Nf3 g1N Nc6 g6 Kf6 g5 Ng6 Rd8 Rd4 g4 Kg7 g3 Ng5 Nef3 Bf4 e1R Na5 Rde8 Bbd7 R8e2 Be8 Rh2 Nd1 Rf1 Be5 Kc1 Rg4 Be4 Bf5 Rff2 Rd8 Rb8 Rc8 Rb1 Rd8 Ne2 Re1 Neg1 Rb8 Rbb2 Rd8 Rh1 Rc8 Ba8 Bb1 Rfh2 Ba4 Rbf2 Rf8 Nd4 Bd7 Bg2 Be8 Ndf3 Nc6 Ncb5 Bd7 Nc8 Bb8 Ncd6 Na5 Nc7 Be8
1r1n2b1/b1nB4/k1p1pqqB/2NQ4/2B2Np1/NRbRP3/3rb2K/3bBR2 b - - 0 1 illegal: No possible last move
1BNr1NK1/1rq1Q3/4n2R/1bb1Rp2/2Nb3P/2BB1n2/p1nR1p2/nkq1B3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 g3 c5 a4 e3 a3 c6 f3 c7 f2 b6 a2 b5 g2 b7 g4 b6 d2 Qe2 d1Q+ Bd2 g3 Nh3 g1B Na3 g2 Qa6 Nc6 b8B Na5 b7 Ra7 Nc2 Nb3 Nf4 Qc1 Qb5 Nh6 Rh2 Bc5 Rb1 Na1 Qe2 d6 Rb4 Bd7 c8N Bb5 Ng6 Qc7 Be1 Rd8 Nf8 f6 Na3 Nf7 Rd4 Ng5 Nc4 Ne6 e4+ Kf4 Qc2 Kf3 Bd3 Kf4 e5+ Kf3 Nd2+ Ke3 Rg4 Bd4 Rg6 Bc5 Rh6 Bd4 Bg6 Ke2 Qf5 Kd1 Qg5 Bc5 Nc4 Bd4 Bh5+ Kc2 Be2 Kb1 Qg7 Bc5 Qe7 Bd4 Rh3 Bc5 Rd3 Bd4 Rd2 Bc5 Ke4 d5+ Kf5 d4 Kg6 d3 Kh7 f5 Rc2 d2 Kg8 d1N Rd2 Ne3 Bf1 Nec2 Bd3 Qd7 Bc7 Bh2 b8B g1N Ba5 Rb7 Bb4 Qc7 Bc3 Nd4 e6 Ngf3 Qe8 Bf4 e7 Be5 Qf7 Ne6 e8R Bed4 Qg7 Neg5 Re5 Ne6 Qe7
KR2r1b1/1B5b/2N1n1kb/5pN1/1pb1n1R1/Q1r1p2N/1q2PRn1/4qBBR b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g6 Bh3 gxf5 Bf1 f4 Kf2 b3 d4 e5 h4 c5 a4 b5 h5 e4 h6 b4 h7 f3 Ke3 f2 d6 g3 a5 g2 d5 b2 a6 c4 Kd4 e3 Kc5 c3 a7 Ba6 Qb3 Nd7+ Kc6 Qf6 Qa3 Bh6 Nh3 g1N Bg2 f1B Bd2 c2 Nc3 b1B Ne4 Nf8 Neg5 Nf3 Be1 Nh4 Bf2 Qb2 Bg1 Nf6 d7+ Ke7 d8N c1Q+ Kb6 Rc8 a8B Rc3 Ka7 Bg7 Kb8 Bc4 d6+ Ke8 Nc6 Bh6 Nd8 Rg8 h8R Bh7 d7+ Ke7 Bgd5 Bg2 Bab7 Qd1 Bdc6 Bgd5 Ka8 Qdd2 Rf1 Qe1 Rf5 Be6 Bg2 Bed5 Bf1 Be6 Ba6 Ng2 Nb7 Bed5 d8R Be6 Rd4 Ke8 Rg4 Ne4 Rff4 f5 Na5 Ke7 Rh2 Kf6 Rf2 Kg6 Nc6 Bf7 Bc8 Ne6 Rh1 Rd8 Rf8 Bfg8 Re8 Rd7 Rd8 Re7 Bb7 Re8 Rb8
2n4q/b1R5/2r2r1r/1r1pR1Nk/BB1BNRNP/p2p3Q/3Bnqb1/3K2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 f5 b6 Kf7 e5 Kg6 b7 f3 b5 d3 e6 a4 c5 g3 e7 g2 e8N a3 c6 f2+ Kd2 f4 c7 f3 b6 g4 Nc3 g3 Nf6 Nc6 b8B Bc5 b7 Nge7 Ng4 Rh6 Ba7 Nd4 b8B Kh5 Ne4 Ne2 Nh3 g1Q Nhg5 Qh8 Bh3 g2 Qf1 Bf5 Ra2 Nc8 Kd1 Be6 Bb6 Ra5 Bd2 Rb5 Rh2 Be3 Bd4 Bd7 Rh1 Qh2 Bba7 g1B Bac5 Qf4 Bcb4 Qh2 Be5 Ba7 Bd4 Be6 Rc2 Qf4 Rc4 Qe3 Qe1 f1R Rh2 Rf2 Qf1 Rg2 Rh1 f2 Rh2 Rg3 Rg2 Rf3 Rg3 Rff6 Qg2 Qf4 Re3 Bd7 Qh1 Rc6 Qh2 Ne7 c8R Qff6 Rc7 Nc8 Nc3 Bf5 Re5 Be4 Qg2 Bf3 Nce4 f1R+ Be1 Bb8 Ba1 Rf2 Nc3 Rbb6 Bd2 Be4 Ne3 Ba7 Bd7 Rc5 Qh3 Bg2 Ba4 Rcc6 Ng4 Rb5 Rce4 Qff8 Rd4 Qc5 Rde4 Rff6 Rf4 Qb6 Nce4 Qf2 Bd4
1n1kN1NR/1BR5/3q1Bp1/1B2qpn1/2bN1b2/4n2r/rP1NpK1n/1RQr4 b - - 0 1 illegal: No proof kernel
nNBb1R2/r1Bq1R1N/2np2p1/1K3Q2/4bb2/r1p3qN/3nkbP1/B3B2R b - - 0 1 illegal: No proof kernel
1Rqrr2k/n3q3/NK1pp3/3NnBBR/1bPN4/1p2qb1R/3bB3/2RqQ3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 b5 a4 g5 h4 Kg7 f4 b3 c4 b4 a5 e6 h5 g3 a6 g4 a7 b2 f6+ Kh7 f7 b3 h6 g2 f5 g3 f6 Nc6 Qe1 Nge7 Ne2 g1Q Bg5 g2 Rh3 Bb7 Nbc3 Qc8 Rc1 Ng6 Nd5 Bb4 f8R Nge5+ Ke4 d3 f7 b1Q Nd4 Rb8 a8B Na7 Be2 Qa2 Rd8 Re8 f8N+ Kh8 h7 d2 Rh5 d1Q Rh3 Kg7 h8R Qa3 R8h5 Bd2 Rh1 Qe7 R1h3 Nf7 Kd3 d6 Nd7 Qf2 Nc5 g1B Na6 Bc6 Nb6 Bf3 Be4 Kg8 Bf5 Qg3 Nd5 Qf4 Nc6 Bc5 Nd4 Qe5 Rc3 Bb4 Rc1 Qcb7 Rc8 Ra8 Rb8 Qc8 Bf6 Qf4 Bh4 Qh6 Bg5 Kh8 Bf4 Bc5 Rb6 Qcd7 Be3 Rad8 Rb8 Qc8 Bf4 Be3+ Kc3 Ba3 Rb5 Ne5 Rb8 Bb2+ Kb4 Ba3+ Ka5 Bb4+ Kb6 Bed2 Bh7 Qhg5 Be3 Qg1 Bg5 Qe3 Bf5+
B4nBr/2Q5/qRppn3/n1R4k/p1NN1B2/1RqR1Pr1/KN1b3n/1r5b b - - 0 1 illegal: No proof kernel
4K3/1bqRN2b/1pBqr1Q1/BR1n4/pP1B4/1k1Rnqqr/R4pn1/1N5N b - - 0 1 illegal: No extended proof kernel
6r1/R2n1n1p/1BrpB1q1/q5rp/r2RRP2/2R1B3/1NN2n2/bK1bQk1N b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 fxe4 h5 g6 Qe2 gxh5 Qg4 Nh6 Qd1 Ng8 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 a5 c4+ Kd6 Kc2 e5 c5+ Kd5 b6 d6 b7 e3 b5 Ke4 c6 a4 c7 e2 g5 e1Q g6 a3 g7 a2 b6 Ra5 Bh3 Nh6 g8R Nd7 b8B Nf7 b7 Qg3 Be6 Bg7 Re8 Rg8 Qd2 Qg6 Nh3 Kf3+ Kb2 d3 Nc3 e4 Ba7 e3 b8N e2 Bb6 Kg2 Nf2 e1R Na6 Ree5 Nb4 Ra6 Rd1 Rg5 Nc2 Bb7 c8R Bf3 Nh1+ Be2 Bd4 Qa5 Na4 Be5 Rc4 Rc6 Rc3 Bg7 Bb6 Bf6 Rb1 a1R Re7 Ra3 Ra1 Ra2+ Kb1 Be5 Ne1+ Kf1 Nb2 Ra4 Raa3 Nf6 Ra7 Nd7 Rab3 Bg4 Rb4 Be2 Re4 Bh8 Qc2 Bg4 Bce3 d2 Rc1 d1N Qd2 Nf2 Nc2+ Bd1 Rd3 Kg1 Rdd4 Bf6 Na3 Bh8 Rc3 Kf1 Nc2 Rcc5 Nd3 Ra3 Rcc4 Qf5 Rd5 Ba1 Rc3 Ra4 Rdd4 Rc6 Nb2 Qg6 Qe1+
NbK2RB1/4qBp1/1N2N3/1nb3Pr/qBBQ1rq1/1pr2np1/2k1r3/1R2R3 b - - 0 1 illegal: No proof kernel
7r/3p2b1/R1Pnqq1Q/4qN1R/4r3/NB2RK1k/pnb1R1p1/BNb1q1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kf6 b4 Kg5 c4 Kh4 b6 g5 h3 a5 e5 f5 e6 f3 e7 a4 e8N d3 c5 g3+ Ke3 g2 b5 f2 b7 f4+ Kf3 g4+ Ke4 g3 c6 f3 b6 a3 Qb3 d2 Qd5 d1Q Qd2 a2 Nc7 Na6 b8R Bg7 b7 Qb3 Nb5 Qf6 Bc4 f1Q N5a3 f2 Rh2 Qb5 Bb2 Nb4 Bb3 Ra4 Ra8 Ne7 b8B Qe6+ Kf3 Ba6 Ba7 Nd3 Qe3 Rg4 Qh6+ Qh5 Be5 Qe1 Bad4 Bc4 Ra6 f1Q+ Bf2 Rb8 Qd2 Qc1 Ke3 Nc8 Nc3 Nd6 Rb1 Bb5 Rb2 Rd4 Ncb1 Rf4 Rh1 Qcd1 Qc1 Bc4 Re2 Qde1 Qd2 Bd5 Qc1 Be4 Ba1 Qhe5 Nf3+ Kh5 h4 g1B Rh3 Kg4 h5 g2 h6 Ra8 h7 Nb2 h8R Rg8 R8h7 Rh8 Nh4 Bh2 Rf3 Bg3 Bg1 Kh3 Rh5 Rg4 Rf4 Bc2+ Re4 Qff6 Qd2 Bf4+ Kf3 Bfh6+ Qf4 Qd8 Qf6 Bc1 R4e3 Re4 Qh6 Qdf6+ Nf5+
B1nkbnKN/1Np2R2/1B5R/2r5/Qr2N1b1/p1q1R1q1/2q1pbP1/1BbN4 b - - 0 1 illegal: No proof kernel
1N1B2K1/Np1n1QRR/4Bk2/1B1P2q1/q1pR3n/bqr2r1p/5b1q/1b2N2B b - - 0 1 illegal: No possible last move
R5r1/1pRPp2K/3b1N2/nqpr1BR1/1N1kB2Q/qn1b2r1/1n6/n1NBB3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 h5 a4 c6 d4 b3 g6 b2 Kg5 c3 f4 e3 a5 h4 g7 e2 Kg6 e1Q f5 c2 f6 h3 g5 h2 f7 Qe5 a6 Qe3 a7 Qf4 Bd2 c1N Bd3 Qf3 Qe1 Qd7 Na3 b1R Ne2 Nb3 Qh4 Rd1 Nc2 Nf6 g8B Bh6 Rg1 h1N Be1 Nf2 Nc1 N6e4 Bh7 Nec5 Bf5 Nfd3 f8N Nb2 Nb4+ Kc4 Ra3 Na1 d5+ Rd4 d6 Ncb3 Ra6 c5 Rc6 Bg7 Be4 Be5 Rc7 Qb5 Nd7 Rd5 Nf6 Bf5+ Kg7 Qh3 d7 Kd4 g6 Bd6 Rg5 Nc6 Kh6 Rab8 a8R Rhg8 g7 Nca5 Bg6 Rbe8 Kh7 Rc8 Bc2+ Be4 Bf5 Rcf8 Bd1 Qg3 Ng4 Bd3 Be4 Rf3 Nf6 Rf8 g8B Qh3 Kh6 Rg3 Bgh7 Rg8 Bhf5 Qh2 Re8 Nbc4 Bg6 Qb2 Ra8 Qa3 Bgf5 Nb2 Kh7
2N1r1bR/N5BQ/n1n1p2n/2k1BB2/1p2PNN1/bq5p/1Rnr4/nn4KR b - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 c4 f6 g5 fxg5 cxd5 gxh4 Qb3 h3 Qc2 Bd7 Qd1 Bc8 e4 Kd7 d4 Kd6 a4 b5 f4 h5 Kf2 c5 f5 g5 a5 g4 a6 h4 a7 h2 f6 c4 f7 c3 Qd2 h3 Qh6+ Be6 Bd2 c2 Ra2 c1N Nc3 b3 Be2 b2 Nf3 b1N Ne5 Na6 Qh7 Qb6 Bf4 Re8 a8N Nb3 Rb2 g3+ Kf1 Qb7 Nb6 Nh6 Bg4 Na1 Bf5 g2+ Kf2 g1N Ne2 Nf3 Ng4+ Ne5 Nc8+ Kd7 d6 Kc6 d5+ Kc5 d7 Nc6 d8N Qb8 Rf1 h1N+ Kg1 Nf2 d6 Nd1 d7 Ne3 Be5 Nec2 Nf4 Rg8 Rd1 Ba2 Rf1 Rg6 Rc1 Rd6 Rd1 Rd2 Rf1 Bg7 f8B Bg8 Rd1 Bf6 Bg7 e6 Rc1 Be7 Rf1 N6d4 Nc6 Qb6 N6a7 Nc6 d8R Qb8 Ng2 Bf8 Bef6 Qg3 Be5 Qb3 Rd1 Kc4 Re1 Ba3 Nf4 b4 Rd1 Kc5 Rc1 Re7 Rf8 Re8 Rf1 Bf7 Rh8 Bg8 Rf2 Nd8 Rh2 Nc6 Rh1
k1n5/b1nbb1B1/BRP2R1Q/b3r1rp/3b2NB/3p2R1/qpb1NR1K/5N2 b - - 0 1 illegal: No proof kernel
4R1B1/4Br1r/2R1K3/1B1PbB1n/N1pbN2R/bp3rk1/2rnb2p/N4q1Q b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 a4 c5+ Kc4 Ke5 g4 Kf4 d4+ e3 a5 b5+ Kb3 e5 g5 e4 d6 c4+ Kb2 h3 f3 b3 Kc3 h4 g6 b2 g7 h2 d7 h3 d5 b4+ Kd4 b3 a6 Kg3 Ke5 e2 a7 e1B f4 e3 f5 e2 f6 Bc3+ Ke6 e1B f7 Ba3 f8R Nc6 Bg5 Nf6 g8B Rh7 Re8 Nh5 Nf3 Be5 Bd3 Bf2 Nc3 b1R Be7 Rf7 Nd2 Rb2 Bf5 Rc2 Na4 Bfd4 Qf1 Rb8 a8B Qa5 Qd1 Qc3 Bb7 Qd3 Ba6 Qf1 Bb5 Rb6 Bg6 Rf3 Bf5 Rb7 Ne4+ Kf4 Rg1 h1R Rg6 h2 Rh6 Rg1 Qb1 Rg7 Qe1 Rf7 Rh8 Qd3 Qh1 Ra7 Rg1 Qf1 Rg6 Rc7 Ng5 Kg3 Rh7 Nf6 Rh4 Nh5 Rh6 Na5 Rf6 Nb7 Rg6 Nd6 Rh6 Ba6 d8N Ne4 Nc6 Nd2 Nb4 Rh7 Bd8 Rcf7 Be7 Rb2 Nc2 Bb7 Na1 Rc2 Rc8 Bc6 Rd8 Be8 Rf6 Rfg7 Rh6 Bg6 Re8 Rf7 Bh3 Be4 Bf5 Bd3 Rg6 Be2 Rf6 Kf2 Ne4+ Ke1 Rg6 Rg3 Kd7 Rf3 Nec3 Kf2 Rc6 Kg3 Ke6 Bed6 Kd7 Bc7 Ke6 Bce5 Ne4+
NnBK2B1/N2bN2B/pr5p/2bbRnnq/2Ppb3/1rQ2Rn1/2k5/R5B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 f3 Kd5 Kf5 c4 a6 b4 d6 e4+ Kf6 g4 h6 e5+ Kg6 g5 Kf5 g6 f6 b6 f2 e6 h3 b5 h2 b7 d3 e7 d2 e8B Qd7 Qe1 d1B b6 Bc2 Be3 Qb5+ Bc5 Qa5 g7 Bd7 Nh3 Be7 Bg2 f1N Qc3 Nd2 Re1 h1B Ng5 Ne4 Ne6 Ng5 Na3 Bd3 Nc7 Be4+ Kd4 d5 Bg6+ Kf4 Nab5 f5 Bh7 Bd6 Bh3 Ne7 Na7 Rc8 Ncb5 Rc6 g8B Bhg2 Nc7 Qb5 Qa5 Kf3 Rf1+ Ke2 Rf3 f4 Qa3 Kd2 Bhe6 Be8 Bc8 Kc2 Qe3 Bd7 Qe1 Ng6 Qa5 Be7 Qe1 Nh4 Ke5 Nf5 Bg1 Bd6+ Kf6 d4 Qa5 Nh3 Kf7 Bc5 Qe1 Rd6 Qg3 Ng5+ Kf8 Nh4 Ke7 Nf5+ Kd8 Rf6 Re3 Bd5 Re5 f3 Qh3 f2 Qe3 f1N Qf3 B7c6 Qh3 Nd7 b8N Bge4 b7 Rd6 Qa3 N1g3 Qf3 Qa5 Qa3 Ba4 Nbc6 Rb8 Ne7 Rb6 Qf3 Qe1 Qa3 Qe2 Qb4 Qh5 Qe1 Ra8 b8R Rb3 Rb5 Rb8 Na8 Rb6 Ra5 Bb5 R5a3 Nb8 Qb4 Bd7 Qa5 R3b4 Rf3 Rb3 Qc3+
b1K1R2b/rR1rbp1N/3B4/N2pp1B1/R1Br3r/2bQ1q2/P6n/2kNB2n b - - 0 1 illegal: No proof kernel
1bK1N1b1/p1N2RN1/1Bk2nr1/5Nn1/1R1n2q1/n1Q1B1pp/Bq1q3P/n3R3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 exf6 Bf4 f5 Bc1 f4 g4 f5 Bd2 f3 Bb4 f4 Bd2 Na6 Bc1 Rb8 Nh3 Rb5 Ng1 Rf5 gxf5 Bb4+ Kf2 Bd6 Ke1 Bf8 Kf2 h5 e4 g5 c4 d5 b4 Kd7 e5 g4 e6+ Kc6 f6 d3 c5 h4 e7 a3 e8N d4 f7 h3 Ng7 a2 Nc3 d2 Rb1 a1N Bc4 d3 Nb5 Nb8 Nc7 Be6 Qb3 d1Q Be3 d2 Ne2 Nf6 Qc3 Rg8 Ba2 Qb3 Ng3 d1Q Re1 Bd6 f8R Qc8 Rf7 Qd2+ Re2 Qbb2 b5+ Kb7 b6 Kc6 N3f5 g3+ Kf1 f2 b7 Qd7 Ree1 Bd5 Nh5 Rg6 Nhg7 Qbc1 Rb4 Qcb2 Rf8 Bg8 Rf7 Na6 b8B Be5 Rb7 Nb4 Rb5 Nbc2 Rb4 Qdc1 Ke2 f1N Kf3 Qcd2 Na6 Qe6 Bc7 Na3 Bb6 Bb8 Nc7 Qc8 Bg1 Ne3 Bf2 Ned5 Be3 Nh7 Ke4 f3 Ke5 f2 Rb3 Qa6 Rb4 Ndf6 Ke6 f1N Ke7 Qae2 Ke6 Nd7+ Ke7 Ng5 Kd8 Qc4 Kc8 Qg4 Kd8 Qd6 Nd5 Kb7 c6+ Ka8 c7 Kb7 c8N Nd2 Nf6 Ndf3 Nce7 Qdd2 Ned5 Nd4 Nc7 Nde6+ Ke7 Nd4 Nfe8 Nf6 Kd8 Nge4 Qb3 Kc6 Kc8 Ng5 Qc3+
NK2b1R1/2n4p/7k/nN1r3B/RR1b1qq1/B2qp1B1/2p1PQN1/n3qB1q b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 h4 g5 Rh2 b5 Rh3 Ra6 Rh1 Rg6 Bb2 fxg4 Bc1 g3 Bh3 g4 Bf1 Rg5 hxg5 Bg7 Rh3 Bh6 Rh1 Bf8 a4 Kf7 f4 Kg6 d4 c5 Kd2 e5 Ke3 g2 Ke4 b3 a5 b2 d5 b4 d6 c3 Kd5 c2 d7 b3 a6 e4 a7 g3 a8N c4 Ra6+ Nc6 Bd2 c1Q Nb6 c3 Na3 b1Q Ra4 b2 Nf3 g1Q Rh4 g2 Nb5 c2 Qe1 Bg7 Kd6 Nf6 Na8 Qh1 Qf2 g1Q Ne1 Qg4 Ng2 Na5 Be1 Nd5 Rb4 Bd4 f5+ Kg7 g6 Nc7 Ra4 e3 Rb4 Qdg5 d8R Bd7 Rc8 Be8 f6+ Kg8 f7+ Kg7 Rb8 Qd2 Rd8 Qd3 f8B+ Kg8 g7 Q5f4+ Ke7 Qc1 Rb8 b1N Kd8 Kf7 g8B+ Kg6 Bf7+ Kg5 Bh5 Nd2 Ra4 Ndb3 Ba3 Na1 Rc8 Rf8 Rb8 Rf5 Kc8 Kh6 Rb4 Nc6 Kb7 Rg5 Rc8 Na5+ Kb8 Rd5 Ra4 Bf7 Rg8 Bg6 Qf3 Be8 Bg3 Qe1 Qf2 Qgf5 Rhg4 Q5e4 R4g5 Qg6 Re5 Qgg4 Re4 Bc3 Rec4 Bd4 Rcb4
2Q1rnN1/2RrR2B/b2br1pp/2p1N3/R6K/q5RP/B2rbBb1/1k4rN b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 g4 f5 Ba3 Nc6 Bc1 Nd4 Nh3 exf4 Ng1 f3 Na3 f4 Nb1 Nf5 gxf5 Bd6 Bg2 Bc5 Bf1 Bf8 Kf2 Ke7 a4 Kd6 d4 Kd5 a5 Ke4 a6 b5 h3 c5 f6 c3 a7 b3 f7 h6 d5 b2 d6 b4 d7 c2 Ra4 Bb7 Be3 c1R Na3 b1R Nc4 Ba6 Qd6 b3 Qb8 b2 Qc8 Qe7 d8R Re1 Rd3 Rbd1 Rh2 Rb8 a8B+ Rb7 Rg2 b1B Rd7 Nf6 Bd4 Qe5 e3 Rd2+ Ne2 Kd3 e4 Qb8 e5 Kc2 e6 Bd6 f8N Nh7 e7 g6 e8R Ra7 Bd5 Qb3 Ree7 Qa3 Bg8 Ba2 Rg5 Kb1 Rb7+ Bb3 Bg2 Rg1 Nd7 Re1 Nf6 Rg1 Bd5 Re8 Bg8 Nf8 Bh7 Re1 Rbd7 Bd1 Ng8 Rg1 Rc7 Re1 Rc6 Rd7 Bf1 Qc3 Rc7 Qa3 Kg1 f2+ Kh2 f3+ Ng3 Re6 Ne5 Rdd8 Bc4 Rd7 Bd5 Bde2 Nh1 f1B Kg3 f2+ Kh4 Bg2 Rg3 f1R Bf2 Rg1 Ba2+
k7/5N2/2RR2P1/BK3Br1/p1B1Np1p/q1N1pn1R/1bb2nr1/R2bqq1Q b - - 0 1 illegal: No proof kernel
1bkN3q/1Nbq1p1r/2b1p3/3R4/1pK2RQ1/1np2R2/1PqB1BrB/4NNn1 b - - 0 1 illegal: No proof kernel
3brrB1/R3p1nq/6k1/N2NRn2/3B1p1p/1pR2K1n/2qBPQ2/2b1NrN1 b - - 0 1 legal: proof: c4 g5 f4 gxf4 b4 a5 g4 axb4 h3 d5 g5 Bg4 hxg4 dxc4 Kf2 h5 a4 c5 d4 f5 a5 Kf7 d5 b5 a6 b3 a7 b4 d6 f3 d7 b2 Nc3 b1Q Bg2 b3 Nd5 f4 Qd4 c3 Rh3 h4 Bd2 c4 Nb4 c2 Nd3 c1N Ne1 Qc8 d8B c3 Bb6 Nf6 g6+ Kg7 g5 c2 Ra5 Nc6 Re5 Ne8 Qc5 Rb8 a8N Nd4 Ba7 Rg8 Nb6 Nf5 Nc4 Rh8 Na5 Nd3+ Kf1 c1B Qf2 Qbc2 Bd4 Qe6 Rg3 Qg8 Bh1 Qh7 Rh3 Kg8 g7 Kf7 g8R Bg7 g6+ Kf6 Rf8+ Kg5 Rf6 Rf8 Ra6 Bh8 Bg2 Ng7 Ra7 Rbe8 Bh1 Nh5 g7 Kg6 g8N Nhg7 Qe3 f2 Kg2 f1R Nf6 Nf2 Nd5 Qb1 Rf3 Nh3 Qf2 Qc2 Rc3 Nh5 Ree3 Be5 Kf3 Bc7 Re5 Nhg7 Kg4 Bd6 Be4 Bc5 Kf3 Bb6 Bd3 Bd8 Bc4 Rg8 Ne3 Rgf8 Bg8 Rf6 Nd5 Rf7 Nb4 Rff8 Nd5
1NN2r2/1RbPRpKb/p7/rn3p2/1R2qn1r/7B/p2BRQ1q/k1bB2N1 b - - 0 1 legal: proof: f4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 gxh4 f5 e6 Qc2 exf5 Qb3 Bb4 Qd1 Bf8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 b4 c6 g4 a6 e4 a3 g5 h3 g6 h4 g7 a2 b5 h2 b6 h3 b7 Qc7 Na3 Ne7 g8R Rh4 Qc2 Ng6 Rb1 Nf4 Rg2 Rg4 Re2 c5+ Ke3 Ke5 d6 c4 d7 c3 d8R Qd6 Nb5 Nc6 b8N Nd4 Na7 Nb5 Rd7 Bb7 Rb4 Qc6 d3 Bd6 Nc8 Bc7 Re7+ Qe6 Qd2 c2 Qe1 Bd5 Bd2 c1B Qf2 Bb3 Kf3 Bd1 Ke3 Rg8 Kf3 Rf8 Kg3 Rd8 Kh4 Rd5 Kg5 Rc5 Re1 Bh5 Re2 Bg6 Kh6 Bh7+ Kg7 Rc3 Bg2 Ra3 Bf1 Ra5 Bg2 Bd8 Rb7 Qd5 Bf1 Bc7 d4+ Ke6 e5 Qe4 Bg2 Kd5 e6 Nc3 e7 Nb5 Rb3 Kc4 Rb4+ Kd3 e8B Kc2 Nc6 Rb8 d5 Ra8 d6 Rb8 Rc4+ Kb1 Rb4+ Ka1 Bd7 Ra8 Be6 Rb8 d7 Ra8 Bb3 Rb8 Nf3 Ra8 Rd1 h1R Rde1 h2 Bh3 Rb8 Bd1 Ra8 Nb6 Rf8 Nc8 Rf1 Qb6 h1Q Nb8 Qh2 Ng1 Rf3 Qf2 Rd3 Bf1 Rh3 Bg2 Rh4 Bh3 Qd3 Re7 Qe4 Re2
2krr1Rr/4B1r1/4Nq2/P1bNpB1Q/4p2R/1B1pBRnp/2bn2b1/2K4N b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 h5 c4 d5 g4 Kd7 a4 e5 f4 b5 c5 d3 a5 d4 c6+ Kc7 g6 b3 g5 b2 f5 h4 g7 b4 f6 b3 g6 Ba3 f7 Bf8 Ne2 Nd7 Ng3 Ngf6 g8B Nc5 g7 Nh5 Bh3 Qf6 Na3 b1R Nc2 b2 Ra3 Kd8 Qg4 Nb3+ Kd1 Bc5 f8B d2 Be7+ Kc7 Qf3 Bd7 Bf5 Kc8 c7 Ra1 Rh2 b1B Nh1 Ng3 Qh5 Rb8 Bd5 Re8 g8R Be6 Bh7 Bh3 Bc4 Bg2 Bf5+ Kb7 c8N h3 Nb6 Rbc8 Nd5 Kb8 Rg4 Rh8 Rh4 Rce8 Ncb4 Ra2 Nc7 Bd3 Ne6 Kc8 Nd5 Rc2 Bb5 Rc4 Ba4 Rb4 Bd6 Rb7 Bf8 Rg7 Be7 Be2+ Kc2 d1R Be3 Nd2 Bb3 Bd3+ Kb2 Bf3 Rf2 Bg2 Rf3 Bc2 Ra1 Rg1 Re1 d3 Kc1 Rgg8 Rff4 Rd8 Rfg4 Rge8 Rg8 Rf1 Rd1 Rf4 Re1 Rg4 Rf1 Rg7 Rf3
rrn2N2/R3q3/1r1p1PQ1/1n4NN/p1bBb3/1NRp1pk1/1K1bB2R/3Br3 b - - 0 1 illegal: No proof kernel
2QR4/K1N1qBb1/b1p2R1n/1k1r1P2/4Brp1/Bpr5/B1R1p2b/b3nN1N b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 Ke2 Kd7 Ke3 Kc6 h4 g5 f4 b5 a4 e5 d4 c3 d5+ Kc5 d6 g3 a6 b4 a7 g2 f5 c2 d7 g4 a5 Nh6 h5 Bb7 a6 Qe8 d8N Qg6 Nd2 Ng8 h6 Qe6 h7 Qe7 Ra2 Nh6 Ne2 Bg7 Ba3 c1R Ne6+ Kb5 Qc2 Rd8 h8R Rd5 Rd8 Nd7 Rh4 Rc8 a8B Nc5 a7 Nd3 Ng3 Ba6 Nh1 Rb8 Rh2 g1B+ Rf2 Bh2 Bb7 Bf6 a8B Bg7 Bg2 Rc8 Nf1 Ne1 Qc3 Rcd1 Rfc2 R1d2 Rab2 Rf2 Rb1 Rf4 Rd1 Rd6 Bd5 Rd7 Ba2 b3 Rf8 Rd4 Rf6 Rd5 Ke2 e3 Be4 Rc5 Bad5 c6 Rd4 Rd8 Qd2 Rc3 Nc7+ Ka5+ Rd3 Rd7 Bf7 Rd5 Bg2 e4 Bf3 Rb5 Rd8 Ka4 Qd7 Re5+ Kd1 e2+ Kd2 Ka5 Qc8 e3+ Kc1 Rd5 Kb2 Ng2 Be4 e1B Bb4+ Kb6 Ka3 e2 Ka4 Bh4 Ba3 Ne1 Bc1 Kc5 Ka5 Kc4+ Kb6 Kb4 Ka7 Bf2+ Kb8 Bd4 Ba3+ Ka5 Ne6 Kb5 Ka8 Rd3 Kb8 Ba1 Ka8 Rc3 Kb8 Qe8 Ka7 Qe7+ Nc7+
1nQ2b1k/1K4N1/1Rpp4/R2Nn2b/P3p2N/1n2r1pr/6BR/B1q1rnNB b - - 0 1 illegal: No proof kernel
R1r3n1/5NR1/1Q2K3/1b2R1qB/1N2p1np/q2bb1B1/pBNN1prP/5kb1 b - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Ke2 Kd7 d4 Kd6 g4 Kd5 b6 Kc4 d5 h5 d6 f5 d7 e5 b7 a5 c3 e3 Kf3+ e2 g5 e4+ Kf2 b3 g6 h4 g7 a4 Nd2+ Kd3 c4 f3 c5 a3 c6 f4 c7 Qg5 d8N b2 Nc6 b1B Bb2 Nd7 b8B Ba6 c8R Ndf6 Re8 Bb5 Re5 Be7 Bd6 Rc8 Qe1 Bc2 Qb1 Rh6 Bh3 Rg6 Bg4 Bf8 Bh5 e1B+ Kf1 f2 Ngf3 Ng4 Kg2 Ke2 Kh3 Bcd3 Rg1 Be7 Nb4 f1Q+ Rg2+ Bf2 Ne1 f3 Nec2 Qc1 Rg3 N8h6 g8N Bg1 Bc7 f2 Bd6 Nf7 Nh6 Bd8 Rg2 Bb6 Bc7 Be3 Bb8 Nd8 Nf7 Nc6 Nf3 Qd8 Na6 Ba4 Rf5 Ne7 Bg7 Ne5 Nd2+ Rg4 Qb6 Bab5 Nab4 Ng8 Ra2 Nc4 Bf4 Qa1 Bb2 Ne5 Rg5 Qf6 Rg7 Qe7 Rg3 Qc5 Rf3 Rg2 Bg3 Nd7 Kg4 Ne5+ Kf5 Ng4+ Ke6 Qg5 Rf5 Qc1 Bc3 Qb2 Re5 Qa1 Rb2 Qc1 Rb3 a2 Ra3 Qb2 Ra8 Qa3 Nb3 Kf1 Bd4 Ba4 Bb2 Bab5 Nd2+
5q2/k2p1pbp/q1Bq1qN1/N1N5/2b2nKB/1Pp3QR/2Nn4/RB2Rr1r b - - 0 1 illegal: No proof kernel
rn6/2P1K3/1pkp4/1b3RR1/4bN1N/B1r1BpbB/1qp1N1n1/2NqQR1b b - - 0 1 illegal: No proof kernel
1NR5/3N3k/p1rr1nbp/bB3R1b/1rb2bq1/1NB1p2p/1NB1P1R1/1QK5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 d5 e5 d6 e4 Kd2 Nc6 Ke1 Ne5 fxe5 cxd6 Na3 d5 Nb1 d4 Kd2 f5 b4 Kf7 g4 Kg7 c4 d5 e6 a6 e7 h6 e8B h3 g5 e3+ Kc2 a3 b5 a2 g6 d3+ Kb2 d4 b6 d2 b7 d3 b8N f4 c5 f3 c6 f2 c7 Bd6 Bd7 Nf6 Nc3 Qg8 Qe1 d1B Bg2 f1B Bd2 Bc2 Rh2 Bf4 Be4 Bg2 Nd1 Bf3 Rg2 Bh5 Bb5 Be6 c8R Bc4 Bc3 d2 Nf3 Ra7 Qf1 Rc7 Nd4 Rc6 Nb3 Qe6 Rc1 Qg4 Qh1 Bb1 Bc2 Rd8 Qg1 Rdd6 Rf8 Rd4 Rf7+ Kg8 g7 Re4 Rf8+ Kh7 g8N a1B+ Ka3 Qg5 Nb2 d1R Rc8 Rdd6 Rf1 Qg4 Qh1 Bh2 Rf5 Bf4 Qd1 Bd3 Qf1 Rb4 Qd1 Ba2 Qb1 Be4 Ne7 Bd3 Nd5 Bc4 Nb6 Bd3 Nc5 Bac4 N6d7 Be4 Nb3 Bed3 Nd1 Bb2+ Ka2 Bc1 Ka1 Bd2 Kb2 Be1 Kc1 Be4 Rd5 Beg6 Nb2 Ra4 Bd4 Ba5 Rf5 Rb4 Bc3
3BB1NQ/2K5/BBb1R2N/p1b1p2n/pn4n1/3qP1R1/bpRn1nN1/1r1k4 b - - 0 1 illegal: No proof kernel
1n1Qn1rq/1r1N1p2/2B2RB1/B1N3bp/2np1k1P/p1R1R3/1n1N1Nq1/2K4n b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 Be3 bxa4 Bc1 e5 g4 exf4 g5 d6 Nh3 h6 Ng1 Bf5 Nh3 Bd3 Ng1 Bh7 g6 Qg5 gxh7 Qd8 Kd2 Kd7 c4 Ke6 b4 Ke5 h4 g5 e4 a5 b5 f3 b6 f2 b7 d3 c5 a3 c6 h5 c7 d5 c8R a2 Qe1 d4 Rc3 g4 Rh3 a4 Re3 g3 Nh3 g2 Bb2 g1N Kc1 a3 Nd2 Nf6 Rb1 Rg8 h8N a1Q Ng6+ Kd6 Ngf4 Ke5 Qe2 Be7 Ne6 Nf3 Nc5 Ne8 Bg2 f1N Nf2 Kf4 e5 Ra4 e6 Ne5 Be4 Qa2 Bg6 Bg5 e7 Nc4 Ba1 Ra7 Rb6 Ng3 Rd6 Na6 b8N Nh1 Nbd7 Nb8 Qf1 Rb7 Qh3 Nc7 e8B Qf6 Qe6 Qg7 Qe7 Qh8 Ndb3 Qe2 Nd2 Qf3 Qd8 Qd5 Nf8 Qg2 Bd7 Ne8 Bc6 Qg4 Nfd7 Qg2 Nf3 Kg3 Rf6 d2+ Kc2 d1N Kc1 Ndb2 Nd2+ Qf3 Rb3 Nd1 Bc3 Ndb2 Bf5 Kf4 Ba5 Qd5 Rbc3 Qg2 Bg6+
1r6/N3RkbN/b1n1pn1B/1N2R1Kp/3p3B/q1R2bp1/4PQbq/bBB5 b - - 0 1 illegal: No proof kernel
3BN1bq/RKpNn3/rbpq2p1/2P3B1/2pQB1nR/1B6/1qn5/nR4Nk b - - 0 1 illegal: No possible last move
1q1r3N/2RppbBb/2R4k/qr1P2RB/2Bp2n1/2p1N3/Nr1B2Kb/1r2Q3 b - - 0 1 illegal: No proof kernel
3bBk1B/pKp3rB/n1N3B1/1b1q4/P3q1q1/p1n3R1/1pq1R1N1/1n2R1QN b - - 0 1 illegal: No proof kernel
4rrBn/2R1b1kN/1p1pb2q/1p1q3p/B6B/3QR1K1/2RPNr2/rN1q1R2 b - - 0 1 legal: proof: f4 g5 h4 gxh4 b4 e5 b5 exf4 c3 b6 c4 Nc6 c5 Na5 c6 Nb7 cxb7 a6 Rh3 axb5 Rh2 Ne7 Rh1 Ng8 Kf2 f5 b8R Kf7 a4 h5 g4 c5 e4 d6 g5 h3 g6+ Kf6 a5 h2 e5+ Kg7 a6 f3 e6 c4 e7 c3 a7 f4 Qe2 c2 Rb7 Qe8 Ra2 Be6 Qd3 Nh6 Rc7 Nf7 Ne2 Qc6 e8R Be7 Bb2+ Qc3 Ba1 c1Q Rc2 Qf6 Bd4 Rc8 a8B Qd1 Bd5 Rf8 Bb3 Nh8 Ba4 Rb8 Rg1 h1Q Bc5 Qg5 Bg2 Qh6 Rf1 Qh3 Bh1 Qf5 Bg2 Qd5 Bd4+ Kg8 Bf6 Ra8 Bh4 Kg7 Kg1 f2+ Kh2 f3 Kg3 Kg8 g7 Rb8 Rh1 f1R Bh3 Re1 Rf1 f2 Bf5 Kf7 g8N Kg7 Nf6 Ra8 Bh7 Ra7 Rh1 f1R Bg8 Rf2 Nh7 Ra8 Rec8 Ref1 R7c3 Re8 R8c7 Rff8 Rb3 R1f2 Rf1 Ra5 Qc4 Raa8 Re3 Ra6 Qd3 Raa8 Bb3 Ra1 Ba4
r4k2/R5n1/1p1p3K/1B1Ppqp1/1NRbR2Q/2Rq2p1/4Nb1b/B1rB1nN1 b - - 0 1 legal: proof: e4 a5 c4 f5 b4 fxe4 g4 h5 c5 hxg4 c6 axb4 Ke2 b6 Ke1 Bb7 cxb7 Ra6 Bb5 Ra4 Bf1 Ra8 Ke2 e5 f4 c5 h4 g5 a4 g3 d4 c4 a5 c3 h5 c2 a6 b3 a7 e3 Kf3 b2 Kg4 e2 h6 e1B Kh5 Ne7 h7 Nd5 f5 Qc7 f6 Bg7 f7+ Kf8 Qg4 Na6 b8N Ndb4 Bb5 Qd8 Qh4 Nc5 Nc6 Ne6 Nc3 b1Q Bb2 c1B Nce2 Nd5 Nb4 Qf5 Bc3 Bf6 Kh6 Bb2 Ra4 Rc8 a8B Ne3 Ra7 Nf1 Bf3 Ng7 Rh3 Rg8 h8R Be7 Rh2 Bf2 d5 Qe8 Rh7 Bec5 Rc7 Bce3 Rc4 d6 Bh5 Bd4 Bg4 Bc1 Ba1 Bce3 Rh1 Qc6 Rc3 Qc4 Bh5 Ke7 f8R Qcd3 Rh3 Ra8 Rfc8 Re8 R8c7+ Kf8 R7c4 Rec8 Rh2 Ne6 Ra7 Ng7 Nf4 Rc5 Bd1 Rc6 Nfe2 Rcc8 Nh3 Bg1 Rf2 Bh2 Rf4 Bf2 Rg4 Bc5 Rce4 Bcd4 Nhg1 Rc7 Rb3 Rc1 Rc3 Bde3 Rec4 Bd4 Re4
1rq3q1/pN2P2p/Kbn3NR/1p1BNr2/2pB3Q/B2R1RBk/1nbnp3/8 b - - 0 1 illegal: No possible last move, all moves rejected
2b1R1b1/R1Q1KbNN/p1r1Bnp1/1qp1p1p1/k3r2B/6P1/3bR3/nB1NN3 b - - 0 1 illegal: No proof kernel
3Q3K/1k1Rpq1P/2R3B1/r1Bp1nR1/N1r4n/r2p1p2/1pb3R1/2N1bBrN b - - 0 1 illegal: No proof kernel
nbb2r2/PBp2NB1/6kR/1N1B1pNr/nqp5/RB3prp/2R1r3/2Q4K b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 f5 g4 Kf7 Kg2 b5 d4 h5 a4 h4 e4 b3 a5 b4 d5 b2 a6 b3 e5 Rh6 g6+ Kg7 e6 Ne7 d6 Kf6 d7 Bb7+ Nf3 Ng8 g5+ Kg7 e7 Bc8 e8B Bc5 Na3 b1R Bb2+ Nf6 Nb5 Qe7 d8N Rh5 Nf7 Ba7 Qc1 Nd7 Ra3 Bb8 Rh2 h3+ Kh1 Qc5 Rc2 Qb4 Bg2 Nc5 Bd4 b2 Bd7 Kg8 g7 Kh7 g8R Nd5 Rg6 Nb6 Bg7 Nca4 Rd6 Ra1 Rf6 b1R g6+ Kg8 Rc6 Ra2 N3g5 Rb3 Rf6 Re3 Bb7 Rg3 Bdc6 Rb2 Bf3 Ra2 Bd1 f3 Re2 Rg2 Bb3 Rg3 Rc2 Rb2 Bh8 Kf8 g7+ Ke8 g8B Ke7 Rc3 Re2 Rh6 Ke8 Rc2 Ke7 Bg7 Ke8 Rh8 Ke7 Bh6 Kf6 Bg7+ Kg6 Nh6 Ra7 Bgd5 Na8 Rh7 Re6 Nhf7 Re2 Bbc6 Rb7 a7 Rb6 Bb7 Rf6 Nfd6 Rf8 Ndf7 Rg4 Rh8 Rg3 Rh6+
5B2/rqkn1Q2/rNbr2b1/8/2rPNN1Q/r6R/2B1nnK1/1N1rR1N1 b - - 0 1 legal: proof: b4 a5 bxa5 e5 f4 exf4 h4 b5 c4 g5 a6 d5 cxd5 gxh4 a3 Bxa3 a7 b4 Rxa3 Bg4 Ra1 Bc8 Kf2 Kd7 e4 c5 d4 f5 g4 h5 d6 h3 g5 f3 e5 c4 g6 h4 g7 b3 Na3 h2 Bg2 b2 Nb5 b1R Ba3 c3 Bc5 f4 Kf1 c2 Nc3 c1R Ra6 h3 Kf2 Qb6 Ra2 Ra1 Ra3 Nh6 g8N Ng4+ Kf1 f2 Nce2 Qb7 Nh6 Rc4 Be4 Rh7 e6+ Kd8 d7 Kc7 d8N Nd7 Rc3 Ra3 Nf5 Rh6 e7 Rd6 e8Q Rda6 Nf3 Rd6 Rg1 h1B Nfg3 h2 Nd2 Rda6 Bc2 Bc6 Rb3 h1R Qf7 Rh6 Nge4 Rd6 Kg2 f1N Qe1 Nf2 Rh3 Ng3 Nb1 f3+ Kh2 Rh6 Bf8 Rg6 Rf1 Rd6 Ng1 Ne2 Ne6+ Kb6 Nf4 Kc7 Qf5 Ne5 Qf6 Bf5 Qe6 Bg6 Qg8 Nd7 Qf7 Nd3 Qg3 f2 Re1 f1R Qh4 Nf2 Kg2 Re8 Rd1 Re7 Rc1 Rd1 a8N+ Kb8 Nb6 Kc7 Qg8 Re8 Qf7 Rea8 Rh2 R8a7 Rh3 Rdd3 Rf1 Rd1 Re1
Q1BbB3/1P1Rbqr1/1n4Rn/1bn1K2B/2Q1B3/8/2BpNq1n/2k1rN2 b - - 0 1 legal: proof: b4 g5 c4 a5 bxa5 c5 h4 b5 hxg5 e5 f4 exf4 Bb2 b4 Bc3 b3 d4 cxd4 axb3 dxc3 b4 Ba6 b5 Bc8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 d5+ Kd4 f5 e4 f3 b6 c2 c5 c1B a6 h4 e5 f2 g6 h3 b7 h2 a7 f4 g7 f3 c6 Qc7 g5 Kf5 e6 Kf4 e7 Nh6 e8B Be7 g8B Rh7 g6 Bd7 Ra4 Rg7 Bb5 f1N Ba6 f2 Bb5 Ne3 Bf1 Nc4 Ra6 Nb6 Be2 f1N Qb3 Bd8 Qb5 Ba3 Bh7 Bf8 Bd1 Bfe7 Ne2+ Kf3 Rg1 h1Q Bc2 Nh2 Qc4 Qg2 Rd1 Kf2 Rd3 Ke1 Nd2 Qgg3 Nf1 Qf2+ Kc3 Qcf4 c7 Bb5 c8B N8d7 Rd2 Rb8 a8Q d4+ Kd3 Qf8 Ke4 Nc5+ Ke5 Q8f7 Be4 Rg8 g7 d3 Bg4 Rc8 Bh5 Rc6 Bhf5 Rg6 Bc8 Rg1 Bed7 Re8 g8B Rg4 Bgh7 Rg7 Rb2 Kd1 Rb3 d2 Rd3 Reg8 Be8 Rg1 Rd7 R8g7 Nc3+ Kc1 Bc2 Nd5 Bhe4 Rh1 Rg6 Nb6 Ng3 Rd1 Nf1 Re1 Ne2+
kNb5/1nR5/1K1PRq1p/pB2B3/1Rr5/Q2R1bpR/5pqN/1q1Q3q b - - 0 1 legal: proof: b4 b5 c4 e5 a4 d5 f4 dxc4 g3 bxa4 b5 exf4 Qb3 a5 Qd1 Ra6 bxa6 Be6 Qb3 Bd7 Qd1 Bc8 Nc3 f5 Ne4 f3 Nc3 f4 Nb1 Bb4 Qb3 f2+ Kd1 f3 Kc2 Qh4 Qb2 Bd6 Qb3 Bf4 gxf4 Qg4 Kb2 Qg2 Qd1 Qg5 Kc2 Qd8 h3 g5 Rh2 Nc6 Rh1 Ne5 h4 g4 Ba3 Nf7 Bc1 Ng5 hxg5 Qd5 Rh3 Qd7 Rh1 Qd8 Kc3 Kd7 Kd4 g3 Kc5 c3 d4 c6 e4 Kc7 g6 Kb8 a7+ Ka8 f5 c2 g7 a3 f6 a2 d5 h6 e5 Bg4 e6 Qe8 f7 Nf6 g8R Bh3 f8Q Kb7 e7 Bc8 Nc3 Ka8 Bf4 c1Q Rb1 a1Q Rh3 Ne4+ Kb6 c5 Rb4 c4 Be5 Nc5 Nb5 c3 Nd4 c2 Nc6 Qcb1 Rg7 c1Q Bb5 f1B Nb8 f2 Nf3 Bg2 Nh2 Bf3 Rf7 Qd7 e8R Nb7 Re6 Rg8 Qc5 Rg4 d6 Qe8 Rc7 Rc4 Qe3 Qe7 Qa3 Qf6 Rb3 Qcf4 Rd3 Qe4 Qc5 Bg4 Qf1 Qbb2 Ka6 Qg2 Ba4 Bf3 Qa3 Qd1 Qe2 Qdh1 Qd1 Nd8+ Rb7 Bd7 Rb4 Bc8+ Kb6 Qb1 Bb5 Re4 Kc5 Kb7 a8R Rf4 Ra6 Rg4 Rb6+ Ka8 Rc6 Nb7+ Kb6 Rc4 Rc7
r1Q1qk2/1N1Q2r1/2n1q1Rn/1B3bN1/1Qb2R2/bq1P1Kn1/1Q3BQ1/2n3r1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 f5 e4 h5 g4 c5 b6 b3 e5 h3 g5 f3 g6 h2 g7 c4 b7 c3 e6 f4 e7 b2 d6 h4 Qe2 h3 Qe5 c2 Ra6 Rh7 Bb5+ Nc6 b8Q Nh6 g8Q Rg7 Na3 b1Q Qb2 Bf5 Nc4 Qc8 Qb6 Qe6 Na5 Qba2 Nb7 Qab3 Qh7 Kf7 Qg6+ Kg8 Qg2 Kf7 Kf1 f2 Nf3 Ke8 Rg1 h1N Ra4 h2 d7+ Kf7 d8Q Kg8 Qh3 Ng3+ Kg2 h1R e8Q f1B+ Kf2 Be2 Qed7 Bc4 Ng5 f3 d3 Qe8 Qa5 Ba3 Qg2 Kf8 Be3 c1N Q8c7 Qe6 Qcc8+ Qe8 Re1 Rg1 Qad2 Bf7 Rf4 Bc4 Bc5+ Kg8 Re7 Kf8 Ke3 f2 Qb4 f1Q Re6+ Ne7 Ra6 Qe1+ Kf3 Qe6 Rd6 Nc6 Bf2 Qe1 Rg6+ Qe7 Nd6 Qe6 Nb7+
NbQ1RK2/N1b4B/1nQ1Q3/R1n1q3/1QQ3bP/Bn1q4/3nb1q1/2k1rn2 b - - 0 1 illegal: No possible last move
1Q2b3/qRq2rP1/b1Q1r1Q1/6N1/bq3nKB/q3kB2/1N1b1Q1R/Q1q1q3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Rh3 Na6 Rh2 Nc5 Rh1 Ne4 Nf3 g4 Ng1 Ng5 hxg5 fxg3 b4 Ke7 c4 Ke6 e4 Ke5 Ke2 h5 b6 d5 c5 a5 b5 f5 c6 h4 g6 g2 g7 h3 b7 f4 b8Q+ Qc7 b6 d3+ Kf2 Kd4 b7 h2 e5 g3+ Kf3 a4 e6 a3 e7 d2 e8Q a2 Qd7 Nf6 Qg4 Rh6 Qe6 Bb4 Qd7 Nh5 Qe2 d1B Qh3 Ra7 Qh4 Ba4 Qg5 Bd2 Ba3 Re6 Qa8 Bd7 b8Q Be8 Kg4 f3 Qe7 f2 Bb4 Nf4 Nh3 g1Q Qf8 g2 Qa6 Ke3 Be2 f1B Be7 d4 Na3 d3 Rb1 a1Q Ng5 Qd4 Qf5 Qb4 Bf3 Qf2 Qg6 Qe1 Qa8b7 Qc1 Qbb6+ Qcc5 Rb2 Be2 Rhb1 h1Q Qaa5 Qe1 Nc4+ Kd4 Ra2 Bf1 Nb2 g1Q+ Bg2 Qgf2 Bf3 Qa3 Qc3+ Ke3 Qcf6 Be2 Qa5 Qcb4 Bd8 Qe5 c7 Qc1 c8Q Rf7 Qc6 Qc7 Qaa6 Qfe1 Be7 Qcc5 Qa5 Q5a7 Qaa6 Bc3 Qa5 d2 Bd8 d1Q Qab6+ Kd2 Qf2 Qc1 Nd3+ Bc2 Ne4+ Kd1 Qe3 Qba4 Rb7 Q4b4 Qfd4 Ba4 Bh4 Bd2 Qa1 Bc3 Nb2+ Kc2 Ng5+ Bd3 Qg1 Kd2 Qg3 Bf1 Nd3+ Ke3 Rh2 Bd2 Nb2 Ba6 Qf2+
r1QB3b/n5NK/2Q3Qb/b2Rr3/2p4r/qRk1nB2/2P4N/bQ1n2qQ b - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f3 dxe4 h3 exf3 Bd3 g4 Bc4 g3 Bf1 Bg4 hxg4 fxg2 Ke2 Kd7 Kf3 Kd6 Kf4 Kd5 Kg5 Kd4 b4 e5+ Kf5 a5 g5 h5 g6 c5 b6 h4 g7 c4 b7 e4 d3 e3 b5 e2 b6 e1B Nh3 g1B Rh2 g2 Bg5 a4 Nd2 a3 Be2 a2 Rb1 a1B Nf1 Qe7 Nf4 h3 Bf3 Qa3 Nh5 Ba5 Rb3 Nc6 b8Q Na7 b7 Nf6 g8Q Nd5 Qg6 Nc3 Bd8 Bh6 Qc8 Re8 b8Q Re5+ Kf6 Bge3 Qc6 g1Q Rd2 h2 Ng7 h1R Nh2 Bef4 Qb1 Nd1 Qbb7 Be3 Rg2 Bc1 Rg5 Bcb2 Qbc8 Ke3 d4+ Kd2 d5 Bbc3 Ng4 Rh4 d6 Bd4 d7 Bdb2 Rb8 Kc3 Nh2 Rc5 Ke7 f5 Kf7 f4 Kg8 Rf5 Kh7 Re5 Be2 f3 Rb3+ Kd4 Rh5 f2 Qh1 f1N Bf3 Nfe3 Qcc6 Qf1 Bf6 Qg1 d8Q+ Nd5 Qdc8 N5e3 Rb5 Kc3 Bd8 Kd2 Rd5+ Bd4 Rg5 Kc3 Rg3 Reh5 Ne8 Bh8 Ng7 Re5 Qc1 Ng4 Be2+ Kb4 Rgd3 Nge3 Bf3 Qa4 Ra3 Qb3 Qb1 Kc3 Ra4 Qa2 Rb4 Qa3 Rb3+
3qRRn1/1n4q1/1PBN2k1/2b5/p2r1n2/4QQK1/N1rb1RR1/1B1bb1qR b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 g5 d4 f5 h4 Kf7 h5 c5 d6 a5 b4 f4 b6 g2 Kf2 a4 b7 f3 h6 c4 b5 c3 d7 c2 b6 c1N e5 Ne2 e6+ Kg6 h7 Nf4 d5 Be7 d6 Nc6 b8R Na5 Kg3 f2 Nc3 Nb7 Nge2 g1B Nb5 Ra5 Bh3 f1Q Nec3 Bc5 Ra2 Qg1+ Rg2 Be3 Qd5 Bd2 Qf3 Bf6 Na2 Bfc3 e7 Qa1 Nc7 Rd5 Ne8 Rd4 Rf1 Be1+ Rff2 Bcd2 Ra8 Re4 Qe3 Qg7 Rb8 Rd4 Ra8 Qc7 d8R Bd7 Rdc8 Qd8 Rc1 Bf5 d7 Bc2 Nd6 Bd1 Qf3 Qc7 d8R Qc8 Rf8 Qd8 Kh2 g3+ Kh1 g4 e8B+ Qf7 Bc6 Qg7 Rb1 Qdd7 Rae8 Qd8 Rg1 g2+ Kh2 Rc4 Rb2 Rd4 Rh1 g1B+ Kg3 Qb8 Kh4 g3 Bc8 g2 Kg3 Qbc7 Be6 Qc8 Bb3 Qd8 Bc2+ Rd3 Rf5 Rd4 Bb1 Nf6 Rc2 Rf8 h8Q Ng8 Rb2 Rf7 Qh3 Rc7 Bce4 Rc2 Bc6 Bc3 Rff8 Bed2 Rf1 Bge3 Rf2 g1Q+ Rg2 Ba5 Qh4 Bab4 Qe7 Bc5 Qe5 Bc3 Qe7 Bed2 Qee3 Be1+ Qef2 Ba5 Ne4 Rc1 Rd2 Rcc4 Nd6+ Rc2 Rde2 Beb4 Q2e3 Be1+ Rf2 Bac3 Ne4 Bcd2 Nd6
2b2NRB/r1QR1p1R/1r6/PQ2qnn1/b5RN/1rnq4/1n2b1K1/4k1BR b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 g6 g5 Bd6 Bh3 f3 Bf5 gxf5 g6 f4 Nc3 Be7 Nb1 Bg5 hxg5 Ra7 Rh5 Ra5 Rh1 Ra8 Kf2 Ke7 d4 Kd6 a4 h5 e4 b5 g7 c5 g6 h4 a5 b3 Nc3 h3 Rh2 c4 Qd2 b4 Ra4 b2 Nge2 b1N Qc2 b3 Rg2 b2 Qb3 h2 Qc2 h1Q Rh2 Nd7 Ra1 Nc5 Be3 Nh6 g8R Nf5 g7 Ra7 Nd1 c3 Rh7 Ne6 Qc1 c2 e5+ Kc7 d6+ Kc6 d5+ Kb5 d7 Kc4 d6 Kd3 Bb6 Ng5 e6 Nc3 e7 b1R e8Q Qh5 Ne3 Rb3 Ng2 Qh2 Kf1 f2 Nh4 Qg3 Qe5 Qe8 Qc5 Qe5 d8R Qge3 Qb1 Kd2 d7 c1N Qc7 Qd3 Kg2 Ke1 Bc5 Rb6 Nd4 Rb3 Ne6 f1B+ Kg1 f3 Nf8 Rb6 Qb5 f2+ Kh1 Be2 Kg2 Qb1 Be3 Nd3 Bd4 Nb2 Bc5 Kd2 Bd4 Qd3 Rh1 Qe7 Be5 Qf6 Bh2 Qe5 Bg1 Bd1 Re8 Ke2 d8B Ba4 Bf6 Kd1 Re7 f1B+ Kf2 Kd2 Rd7 Be2 Kg2 Ke1 Rh5 Qde3 Nhg6 Nce4 R5h2 Rh3 Rh8 Bh5 g8R Be2 Rh7 Qd2 Bh8 Rb3 R2h4 Qd3 Rg4 Nc3 Nh4
1b2b3/3b1QqN/n2b3Q/1Q2k1b1/Bn1r1n1R/4p2B/1R3Q1P/Q1K1Nrb1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 g4 h6 f4 Be6 b3 Bc8 Bb2 Nc6 Bf6 gxf4 g5 Nb8 g6 Bg4 Bh4 Bc8 Bg5 hxg5 d4 Kd7 Kd2 Kd6 b6 c5 b4 e5 b5 a5 b7 f3 g7 g4 b6 f2 Ra3 a4 Qb3 c4 Qc2 g3 Qb2 g2 Re3 c3+ Kc1 c2 Nc3 a3 Nf3 g1B Ne1 a2 Bh3 f1B Qa1 Nf6 g8B Na6 b8Q+ Qc7 b7 Rh4 Qa7 Nh5 b8Q Bd7 Qb5 Nf4 Bf7 Be2 Be8 Bh5 Re2 e3 Ne4+ Ke7 Rf2 e2 Ng5 Kd6 Nh7 e4 Rg2 e3 Rg4 Bh6 Qab7 Bg5 Qa7 Rd8 Qab7 Bf7 Qa7 Rh6 Rh4 Rf6 Qab7 Bc8 Bc6 Be8 Qa7 Qg7 Qf7 Ne6 Bd7 Rf1 Qf2 Nf4 Bc6 Ke7 d6+ Kf7 d5 Bcd7 Qbb2 Kg6 Ba4 Kf7 Qb5 Kg6 Qab2 a1B Qb1 Be5 Qa1 Bf5 d7 Bb8 d6 Bg4 Qb3 Kf5 Qf7+ Ke4 Qaf6 Be6 Q6g6+ Ke5 Qh6 Rc8 d8Q Rc4 d7 Rd4 Qb6 Bg4 d8Q Bgd7 Kb2 c1N Qbc6 Bd6 Qda8 Ncd3+ Kb1 Ndb4 Kc1 Bb8 Qb5+ Nc5 Bd1 Bd6 Qa1 Bb8 Ng2 e1B Ba4 Bd6 Qf3 Bg3+ Ne1 B1f2 Rg1 Bb8 Rg2 Bg1 Qd3 Nca6 Rb2 Be7 Qf2 Bed6 Rg4 Bh4 Qdb1 Bg5 Rh4 Re4 Qd3 Rd4 Qb5+
nr2B3/n4QR1/N3bn1P/brB5/3nbRQK/2Nq1B2/1rr3p1/BkB5 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 d4 Kd6 e4 c5 h4 g5 b6 f5 b7 b3 h5 g3+ Kf3 g2 h6 g4+ Kf2 f3 Kg3 f4+ Kf2 c4 Ra2 c3 Be3 c2 Qd3 c1R Re2 b2 Rh4 Be6 Qb3 Nc6 Na3 b1R Nc2 Rb8 Nb4 Nf6 Na6 Rc2 Bc1 Na7 Qa2 Rbb2 e5+ Kd7 d6 Kc6 d5+ Kb5 d7 Bb4 d6 Ba5 Qd5+ Ka4 Rd2 Ka3 Ne2 g1N Nc3 Re8 Bg2 Ne2 Rd1 Rg8 Rg1 Rg5 Qd1 Nd4+ Qe2 Bb3 e6 Rb5 e7 Be6 e8B Kb3 Nb1 Ka2 Nc3+ Ka1 Bh1 Qc8 d8B Qc4 d7 Qd3 Be7 g3+ Kf1 f2 Kg2 f1N d8Q Nd2 Bc5 Nc4 Qe7 Nb6 Qf7 Na8 Rg4 f3+ Kh3 f2 Kh4 f1B Bf3 Bd7 Rf4 Bg2 Qee6 Bh1 Qg4 Be6 Rg2 Rc8 b8B Rd8 Nd1 Kb1 Be5 Rdb8 Rg1 Ndc6 Bc3 Nd4 Rg2 R2b3 Ba1 Rbb2 Re2 Bg2 Re5 Bh1 Rg5 Bg2 Rg7 Bh1 Be2 Be4 Bf3 g2 Nc3+
kQ6/1q3N1n/1RB1nN2/qN1q1nb1/3rPQ1p/1r5R/2K2Nnn/1BN3n1 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Be3 g3 Kd2 Qb6 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Qd8 e4 h5 c4 f5 b4 d5 g6 Kd7 g7 Kc8 g5 Kb7 b6 a5 c5 h4 b5 d3 g6 d4 Kc1 a4 Qe2 f3 Na3 f4 Kb2 d2 Bg2 d1N+ Kc1 f1Q Qd3 f2 Qe3 d3 Bh3 f3 Qh6 d2+ Kb1 Be7 Qe3 Nc3+ Kc2 d1N Qf4 Qd5 Rb1 Na6 Bd7 Bg5 Ne2 Rd8 c6+ Ka8 c7 Nc5 c8N Nf6 g8B Ne6 g7 Nh7 Nc1 Ne2 Rh3 Ng1 Nd6 Qe1 Bf7 f1N g8N f2 Nf6 Qb4 Ng4 Nh2 Bde8 f1N Nf2 Ng3 b7+ Kb8 Bd7 Nf5 Bc6 Ka7 b8N Rhe8 Nb7 Ka8 b6 Rg8 Nb5 a3 Rb2 a2 Nd7 a1Q Nf6 Qaa5 Rb1 Qe7 N7d6+ Qb7 Rbb3 Rg7 Bg8 Rc7 Nf7 Nde3+ Kb2 Ng2 Kc2 Qe5 Rb4 Rd4 Rb1 Kb8 Rbb3 Qd5 Rb4 Qc8 b7 Qa8 Nfd6 Nc5 Nc3 Qde6 Bd7 Qa5 Rb6 Qc4 Bd5 Ne6 Nf7 Qc6 Bc4 Qcd5 Ba2 Ka7 Ba4 Rc5 Bc6 Rb5 Bb1 Rb3 Rb5 Ka6 b8Q Qb7 Qf8 Ka7 Rb6 Qa1 Q8d6 Qaa5 Nb5+ Ka8 Qb8#
1R2nk2/1n5Q/1P1B2bp/rRnb4/B4NK1/bn2qB2/1N2qB2/n2Q1Bn1 b - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 b4 f5 c4 d5 e4 f4 Ke2 f3+ Kd3 h6 c5 f2 Ke2 g2 b6 a4 c6 g3 Kf3 a3 b5 a2 b7 d3 g6 d4 e5 d2 b6 d3 g7 Ba3 c7 Nf6 g8B Bf5 c8B Bg6 e6 Nbd7 b8B Nc5 e7 Nb7 Be2 f1N Nh3 g1Q Nc3 g2 Rb1 a1N Na4 Qc7 Bg4 Qch2 Rb5 Qd4 Qb3 d1N Nb2 d2 Nf4 Nf2 Bd6 d1B Be3 Nd3 Rg1 Ndc5 Bf2 Qd2 Qa4 Bb3 Bh3 Ba2 Bb3 Rf8 Bbd1 Bd5+ Qe4 Kf7 Ba4 Ne8 Kg4 Qe3 Bf3 Nd2 Qd4 Ndb3 Qd1 Rh8 Re1 g1N Bf1 Rf8 Re2 Kg7 Rc2 Rf5 Rc3 Ne6 Rc8 Nec5 Rb8 Re5 Bh4 Qhe2 Bf2 Nc7 e8Q Rf5 Qc8 Ne8 Be5+ Kf8 Qd7 Rf6 Qh7 Rc6 Rd8 Rc8 Bc7 Ra8 Rb8 Ra5 Bd6+
1n3R1R/2R3qq/2r3qk/3K1n2/R3Qprq/6nr/rNP2b1B/B2Q1RN1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kf2 Kf7 h4 d5 b4 g5 e4 Kg7 h5 a5 e5 a4 b6 d3 e6 a3 e7 d2 e8R g3+ Kf1 d4 b5 a2 f6+ Kh6 b7 f2 Ke2 f1N Kf3 g4+ Ke4 d3 b6 g2 f7 g3 Na3 Bc5 f8R Ne7 Bb2 Nf5 Rf7 Qh4 Ref8 Bf2 Nc4 Ra5 Bd4 Rc5 Bb2 Rc6 Rc7 Rg8 Kd5 Rg4 Qf3 d1Q Qe4 d2 Bc3 Qb1 Nb2 d1R+ Bd4 Nd7 b8Q Rd3 Qd8 Nb8 b7 Qe1 Qd7 Qb4 Qd8 Qbe7 Qd7 Qh7 Qd8 Nd7 b8R Rb3 Ra8 Nb8 Ra4 Rbc3 Rb1 a1R Ba7 Ra2 Qd6+ Kg5 h6 Qd7 h7 Qh2 h8B Be3 Nd3 Rh4 Ne2 g1Q Re8 g2 Rf8 Qf2 Re1 g1Q Ke5 Kh5 Rd1 Qg6 Qdd4 Qe7+ Kd5 Rg4 Re1 Rb3 Qa1 Kg5 Qd1 Bb6 Bb2 Qeg7 Ba1 Qhh8 Rh7 Qh4 Nb2 Rh3 Rh6 N1g3 Rf1 Ba5 Bg1 Bb6 Bh2 Bf2 Ng1 Qhg8+ Rff7 Q8h8 Rh7 Qhg8 Rh8 Q8h7 Rf6 Kh6 Rff8
q1bnr2B/3q1rnn/1KB2pQ1/1Bn5/P2BQB2/6r1/1q1R1N1k/N2qR3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 a4 Ke7 d4 Kd6 Kd2 h5 Ke3 b5 g6 c5 g7 h4 Ba3 f6 Rh2 h3 Bb2 b3 Nd2 g2 Kd3 c4+ Kc3 g3 Kb4 c3 e4 c2 Ra2 c1N Bc4 Nh6 g8Q Ra7 Qdg4 Nf5 Rh1 h2 Q8g6 Re8 Nh3 g1R Nf2 g2 Qf3 Rc7 Ka5 b4 Kb6 Nd3 Bb5 Nc5 Qfg4 Nc6 e5+ Ke7 e6 Kd6 e7 Ng7 Qf3 Qd7 Qfe4 Nd8 Ba3 b2 Nb3 b1Q Na1 b3 Rd2 b2 Bc6 Rc1 Re1 g1N Bb5 h1Q Bc6 Rh8 e8B Nf3 Bb5 Ng5 Bb4 Qe6 Bec6 Rc3 Ba3 Qd1 Bb4 b1Q Ba3 Ke7 d6+ Kf8 d5 Qd7 Bb2 Rg3 Be5 Qb2 Bf4 Nh7 Bh6 Qe6 d7 Ke7 Bf4 Re8 Bh6 Nh5 Bg7 Kd6 Bh8 Ng7 Ka5 Nf7 d8B Qd7 Kb6 Qhf3 Ka5 Rb7 Bb6 Nd8 Ba7 Rc7 Kb6 Qh1 Qd4 Qe4 Qd3 Ke5 d6 Kf4 Qc2 Qde6 d7 Kf3 Qb1 Kg2 Bb8 Ra7 Bf4 Q4d5 Qbe4+ Kh2 Be5 Qed6 Bd4 Qb8+ Bb7 Qa8 Bc6 Ndb7 d8B Qd7 Bc7 Nd8 Nc2 Qd6 Bb8 Rf7 Na1 Qd7 Bf4
1Bk1r2b/4nRQ1/P3B3/3B1q2/2Nrq1Bb/Q1bN2rp/5b1q/2K1RqB1 b - - 0 1 illegal: No possible last move
4R3/B1Q2pnN/K3n3/R1b1Nb2/2p1b3/1r2n2q/1rPR1QrR/1k1nBR2 b - - 0 1 legal: proof: d4 e5 dxe5 g5 f4 gxf4 a4 b5 axb5 Qg5 Qd2 Qe7 Qd1 Qd8 g4 h5 b4 a5 g5 axb4 Bh3 Nh6 Be6 Ng8 Bg4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 c5 h4 g3 e4 f3 h5 b3 b6 d5+ Kb5 f2 b7 f1N g6 g2 h6 d4 h7 d3 g7 d2 Nh3 g1R Qe2 d1N Qf3 b2 Qf2 Nd7 b8B Qh4 Bd2 Nfe3 Na3 b1B Ba7 Nh6 g8R Rg2 Be1 Nhf5 Nc4 Ng7 Ra5 Ba2 Rf1 Bd6 Rd8 Nf8 Rd7 Bb7 Rd8 Rb8 Rd7 Bd5+ Ka6 Rb2 Rd8 Rg8 h8R Bc6 Rh7 Be7 Rd2 Ba8 Ng1 Qh3 Nf3 Bb3 Rh5 Ba4 Rh8 Bd7 Rh4 Qf5 Rh2 Qh3 Nb6 c4 Nd5 Rh8 Nf6 Rh5 Nh7 Bc5 Rd3 Rhg5 Rd4 R5g3 Rd2 Ke7 e6 Bd5 Rb5 Kd6 e7 Bf5 e8Q Nfe6 Qb8+ Kc6 e5 Bde4 Re2 Kd5 Ra5 Rg6 Qc7 R6g3 Ng1 Kd4 Rd2+ Kc3 Nf3 Rb7 Nh4 Kb2 Nf3 Nf8 e6 Kb1 e7 Rb2 e8R Nfe6 Nh4 Ng4 Ng6 Rgb3 Ne5 Nge3 Rh8 Rd3 Rb8 Rdb3 Re8
1q1qN2r/1qN4B/1N2Q1N1/pR1rr3/P3bQ1n/p2R1qB1/n5b1/1k2KN2 b - - 0 1 legal: proof: f4 g5 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Bc5 Qd1 Bf8 a4 b5 h4 gxh4 Qc2 Ba3 bxa3 b4 Qd1 bxa3 e4 Ke7 g4 Kd6 d4 f5 g5 h5 g6 a5 g7 c5 Rh2 h3 Nf3 h4 Be2 c4 Qb3 c3 Nbd2 c2 Nf1 Ne7 g8N Na6 Rf2 h2 Rb1 h1B Qb5 h3 Bd3 h2 Qb3 Nb4 Rd2 Na2 Nf6 Bb7 Ne5 f3 Ng6 f4 Nd7 Nf5 Nb6 Bg2 Ra1 h1Q e5+ Kc7 e6 Kd6 e7 Nh4 Bb2 c1Q+ Rd1 Qcc7 Rac1 Re8 Rc5 Qcb8 Bb1 Rh8 Rd3 Ra7 Bc2 Bc6 Bc1 Rd7 Be3 Ba8 Bf2 Bb7 Bg3 f2+ Kd2 Rh5 Qb4 Re5 Kd1 f3 Qd2 Qdc7 Qf4 Rd8 Bb1 Rh8 Bc2 Qcd8 Kd2 Bc6 Kd1 Kc7 e8N+ Kb7 d6 Be4 d7 Ka6 Kd2 Rd5 Nh2 f1R Bb1 Rg1 Nf1 f2 Bc2 Re5 d5 Kb7 d6 Ka6 Ne3 f1Q Bb1 Qf3 Nf1 Ka7 Ke1 Kb7 Rb5 Kc6 Bc2 Qe7 d8Q Qec7 Qdg5 Qcd8 d7 Rd5 Qgg4 Re5 Rbb3 Kc5 Rbc3+ Kb4 Qe6 Rd5 Rc5 Re5 Rd6 Rd5 Bb1 Kb3 Bd3 Kb2 Bc2 Qe7 d8N Re5 Rd3 Rd5 Nc6 Qed8 Nb4 Re5 Na6 Ka1 Bd1 Kb1 Bb3 Qh2 Nac7 Qb7 Qd6 Rh1 Bg8 Rhh5 Bh7 Rd5 Bf2 Rhe5 Qe6 Qhg3 Ne7 Qg8 Bg3 Qh8 Ng6 Qdb8 Nd6 Qhd8 Nde8 Nf5 Bg8 Rh8 Bh7 Nh4 Rb5+
N3R3/3QQ1k1/1r1rp2R/1Br1qPnK/2nr1b1N/5Bp1/5bR1/1qR1R2n b - - 0 1 illegal: No possible last move, all moves rejected
N6B/2Q1Rp2/2R2B1B/q1q1Brq1/2bB2n1/kq1n1nQP/4p3/KbrN4 b - - 0 1 legal: proof: f4 b5 c4 g5 a4 gxf4 axb5 d5 e3 dxc4 d4 h5 g4 Bh6 g5 Na6 d5 Nb8 Bh3 Bg7 Bg4 Bd4 exd4 hxg4 Kd2 Kd7 Kc3 Kd6 b4 e5 Kb2 c5 g6 a5 g7 a4 h3 g3 b6 f3 b7 a3+ Ka2 e4 b5 c3 b6 c2 Bb2 c1Q Qc2 g2 Rh2 c4 Nd2 f2 Ne2 g1Q Nc3 f1B Nd1 c3 Re2 Nh6 g8Q Nd7 Qg3+ Ne5 b8B+ Qc7 b7 e3 Ba7 Ng4 b8B Bf5 Rb1 Qh2 Bb6 Ra5 Ba1 Rc8 Nc4+ Ke7 Rb3 Nf3 d6+ Ke6 d7 Kd5 d8B Bh7 Qd3 c2 Qc3 Qb7 Bb8c7 Qf2 Bg5 Kc6 Rb4 Rc5 Ra4 Kb5 d5 Bd3 d6 Rf5 d7 Be4 Kb3 a2 d8B Qd5 Bb2 a1Q Ra6 Qa5 Bh6 Qcd2 Ba1 Qb7 Kb2 Ka4 Bb8 c1N+ Qc2+ Kb4 Kb1 Qbd5 Bh8 Q5d3 Bdf6 Qb3+ Ncb2 Ka3 Ka1 Rc7 Na4 Bd3 Qc3 Bb1 B6a7 Rc8 Nb6 Rcc5 Re1 Bb5 Bbf4 Nd3 Na8 Rc7 Qe5 Rc1 Qc7 Bc4 Re6 Qd5 Re2 Qfe1 Bad4 Qc5 Qg2 Qh4 Qg3 Qg5 Rc6 Qda5 Rf2 Nfh2 Rf3 e2 Re3 Nf3 Re7 Nfe1 Bd6 Nf3 Bd6e5
2R1N1q1/p1bBn3/3PR3/1B1Rq3/rR1bn3/b3p1r1/qq1QK1RN/1k3Q2 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 g5 axb5 d5 f5 dxc4 g4 Nh6 b3 Nd7 Bb2 Ng8 Be5 Nb8 Bf4 gxf4 h3 Be6 g5 Bf7 Kf2 Bh5 Ke1 Bg4 hxg4 Qd4 Bg2 Qd3 Bf1 Qd8 d4 Kf7 b6 e5 g6+ Kf6 d5 c5 b7 h5 d6 c3 g7 c4 b4 c2 b5 c1Q b6 c3 Ra4 c2 Bh3 f3 Rc4 f2+ Ke2 e3 Kd3 f1Q+ Qe2 e4+ Kc3 Ke5 f6 h4 f7 Qf2 g5 Nc6 b8R Nce7 g6 Nf6 g8B Bg7 Qd1 e2 f8Q e1B+ Qd2 e3 Kd3 Qb2 b7 c1B Nc3 Ne4 Bd7 h3 Nb5 h2 Rbc8 Rh4 b8R Qf7 R4c7 Qfa2 Qf1 Qf8 Bf7 Qg8 Nf3+ Kf4 Rc4 Bd4 g7 Rg4 Rg1 h1Q Bfe8 Qh5 Rb4 Qe5 Nc7 Rg3 R8b7 Rb8 R7b5 Rb6 Rh1 Ra6 Rh6 Ra4 Re6 Kf5 Ke2 Kf4 Rb3 Kf5 Rd5 Kf4 Qc2 Ba5 Qd2 Kf5 Rb4 Bab6 Na6 Bc7 Nh2+ Nf2 Nc5 Qbb1 Bh5 Rg4 Ke1 Qf8 g8R Ba3+ Qc1 Qbb2 Ne4 Qd8 Rg7 Qg8 Nf6 Rg1 Ne8 Ke4 Be2 Rg6 Rf7 Rg3 Beb5 Qc4 Qg1 Kd3 Rff6 Ne4 Rf2 Nc5 Rg2 Ne4 Qd1+ Kc3 Qe2 Qca2 Qef2 Qeg7 Qgf1 Qe5 Be2 Kc2 Beb5+ Kc1 Qd2+ Kb1 Ke2#
8/5R2/2K1Q1QR/2B1R2b/RbrrN3/pPN1b1nn/3pB1Rb/1r2rq1k b - - 0 1 legal: proof: h4 f5 e4 c5 exf5 b5 a4 g5 axb5 gxh4 d4 cxd4 c3 dxc3 Ke2 Kf7 Kf3 Kf6 Ke4 h5 Kd5 a5 f4 e5 g4 e4 b3 h3 b6 c2 b7 a4 Nf3 h4 Bg2 h2 Ng1 h3 Na3 e3 Qe1 e2 Be3 c1B Bf2 Rh4 Nc4 a3 Be3 Bb4 Bd2 Na6 b8Q Nc5 Qg3 e1B Qd6+ Ne6 Qb6 Ra4 Ne2 Qf8 Bf1 Nh6 Nd6 Ng5 Nc3 Ba6 Qgg1 Be2 Be3 Bg3 Bc5 Be3 Re1 Bd1 Nc8+ d6 Kc6 d5 Be2 d4 Nd6 d3 Qa6 d2 Nde4+ Kf7 f6 Ke6 f5+ Ke5 f7 Kf4 f6 Nf5 Bb5 Kf3 Re2 Qg8 f8R Qc4 f7 Bc7 Rh8 Ng3 f8R+ Bcf4 Re1 Qf1 Rf7 Nh5 Re8 Qf2 Kd5 Bd4 Qc8 Ba5 Ng3 Rb4 R1e5 Be3 Ref8 Be2 Qb1 Kg2 Rh8 Re4 Rf1 h1R Qd3 h2 Kc6 Nh3 g5 Qe1 Ra7 Bb4 g6 Rg1 g7 h1R g8R Bg4 Nf5 Bh2 Rh6 Qe2 Rf4 Rb1 Nd6 Rhe1 Qe6 Qf1 Ra4 Kh1 Rf7 Bd1 Rg2 Ng3 Qc2 Bh5 Be2 Rc4 Qcg6 Rhd4 Nde4
nB4bk/3NBqp1/3b1Q1p/2R1Q3/3Bb2r/3BB1r1/2q1brRP/1Nb4K b - - 0 1 legal: proof: b4 c5 a4 d5 e4 b5 axb5 cxb4 Qf3 dxe4 Qg4 Bd7 Qd1 Bc8 f3 f5 Kf2 Nc6 Ke1 Nd4 g3 f4 g4 Nf5 gxf5 exf3 Kf2 Kf7 c4 a5 d4 e5 d5 b3 f6 e4 d6 e3+ Ke1 f2+ Ke2 b2 Kf3 e2 Kg2 e1R d7 f3+ Kh3 a4 b6 a3 c5 a2 c6 Qc7 b7 Bd6 b8B Re3 Na3 b1B Bd3 Ne7 Qf1 Kg8 Qe1 Bb7 d8B Nd5 Be7 Nb6 Qe2 Bc2 Nb1 Bb3 Qe1 Re2 Be3 Ra3 Qc3 Bd5 Qe5 f1Q+ Kg3 f2 Nf3 Qc1 Kg2 Na8 Rg1 f1B+ Kh1 Rf2 Rg2 Qc2 Bd4 Qd7 c7 Be2 c8Q+ Qe8 Qg4 Qf7 Qgg5 Be6 Be3 Be4 Qgf4 Bc7 B7c5 Bd6 Bcd4 Bb3 Nc3 Bbd5 Rc1 a1B Nb1 Bb2 Qfg5 Qa4 Rc5 Bc1 Qgf5 Qc2 Qfe6 h6 Qe7 Kh7 Q7e6 Rc8 Q6f5+ Kh8 Qff4 Qd7 f7 Ba2 f8B Bg8 Qfg5 Qf7 Be7 Rc6 Qgf6 Rb6 Qef4 Rb4 Ne5 Rc4 Nd7 Rac3 Bd2 Rb4 Q4e5 Rcb3 Bb5 Rg3 Bd3 Bc6 B4c3 Rh4 Be3 Be4 Bcd4
1qqn4/B2nQB2/5n1K/3qBR2/N1QB1p1N/P6p/B3r1nr/1nR2kq1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 g5 dxc4 Bb2 e5 Bc1 exf4 h3 Be6 Bb2 Bf7 Bg2 Bh5 Qb3 Be7 Bf1 Bg4 Bc1 Bf6 gxf6 g5 Qd1 Bh5 Bb2 g4 Ba3 g3 Bc1 Bg4 hxg4 Ra6 Bg2 Ra7 Bf1 Ra8 d4 Kd7 Kd2 Kd6 e4 b5 d5 Kc5 f7 Kd4 f8B h5 g5 c5 a3 b3 g6 b4 d6 f3 d7 f4 g7 b2 e5 b3 e6 g2 e7 f2 e8B h4 Qg4 c3+ Ke2 c2 Kf3 c4 Bg6 c3 Be7 Nf6 g8Q Nc6 Bb5 f1N Qg3 Ne3 Bf7 Ra6 Ba4 Kd3 Q3g5 Rh5 Bd2 c1Q Bc5 c2 Nc3 b1Q Bd4 b2 Bab3 Qa8 Bbd5 Nd8 Na4 Re6 B2c3 Qd2 Qe5 Qc8 Ba2 c1N Qd6 Rh8 Qe7 Nb3 Ba7 Re5 Bcd4 Nc5 Rh3 Rhh5 Rg3 Qa5 Rg5 Kd2 Rf5 Ke1 Bfe6 Kf1 Bf7 Re6 Be5 Qb5 Bd4 Qbb8 Be5 Qe1 Rc1 b1N Bd4 Nc6 d8B Ncd7 Bc7 Nd8 Bce5 Rh8 Nh3 g1Q Ng5 Ng2 Nh7 Nc5 Nf8 Ncd7 Ng6 Rh7 Bd6 Re2 B6e5 h3 Nh4 Qd1 Be8 Rg7 Qc4 Ne3 Bf7 Rg2 Rh5 Rh2 Rf5 Nfd5 Ke4 Ng2+ Kf3 Nb4 Kg4 Nd5 Kg5 N5f6 Rc2 Qd2 Kh6 Qa5 Rc3 Qd5 Rc1+
bk2B1nn/p1Q4K/1n6/1Rbp1N2/P1Nb2nN/1bNN1b2/2QrR3/B6b b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 f5 d4 f3 c5 f4 c6 bxc6 d5 cxd5 Kd2 d4 Ke1 d3 Nd2 g5 Nb1 Qf6 h3 Qf5 gxf5 g4 h4 Na6 Qc2 Rb8 Qd1 Rb6 Nh3 Rg6 Ng1 Rg5 hxg5 Bh6 Na3 Bg7 Nb1 Bf8 Kd2 Kd8 b4 c5 a4 Kc7 e4 d5 g6 h5 b5 c4 b6+ Kb8 g7 h4 b7 f2 e5 h3 f6 g3 f7 f3 Ke3 g2 Kf4 d2 Kg5 c3 Kg6 h2 e6 c2 e7 Nc5 e8N Nd7 Ne2 g1B Bb2 c1N Nbc3 Nb6 Ra2 Nd3 Qc2 d1B Nf4 Bc5 f8N Be2 Bh3 f1N Bd7 f2 Ba1 Bf3 Nd6 Ne3 Be8 f1B Nc4 Ng4 Rb2 Rh3 Rb5 Bgd4 Rg1 h1B Rg2 Rg3 Re2 Nde5+ Kh7 Rg2 Nd3 Nf7 Ng6 Nh8 Nh4 Rh2 Re5 Rd2 Re2 N8h6 g8N Bd7 Nb4 Bc6 Ne7 Ng8 Nef5 Nc8 Rh2 Nb6 Nd3 B1e2 Rg2 Bd1 Rf2 Ne5 Re2 Ng4 Qb2 Bb3 Qa2 Nd7 Qc2 Nb6 Bf7 Kc7 b8Q+ Kd7 Qd6+ Kc8 Qg3 Ba8 Be8 Kb7 Qd6 Kc8 Qd7+ Kb8 Qc7+
2kQ1r1N/K5Pn/2R2rpQ/R2b4/2nB2p1/pn2R1R1/Brb3q1/1q2RN2 b - - 0 1 illegal: No possible last move, all moves rejected
KN4r1/B4P2/2BpQ1p1/1bN2n1R/2Br2n1/RQ2q1r1/q1r2bkp/2BB4 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 g4 g5 h4 gxh4 g5 Bg7 Be3 Bh6 Bc1 Bf8 g6 Qb6 g7 Qc7 Qg4 Qd8 Qg6+ hxg6 Kd2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 e5 b4 a4 c4 h3 f4 d6 c5 d3 b6 d2 b7 d1Q+ Nd2 a3 c6 a2 c7 e4 b5 e3 b6 e2 Bg2 e1R Nf3 Ra6 Nd4 Ra8 Nc6 Nh6 g8B Qa4 Nb3 Bg7 Nc5 Nd7 b8B Qe8 b7 Re2 Ba7 Ne5 b8Q Rc2 Qb3 Neg4 Nb8 Ba6 c8B Bb5 Bf3 Qe7 Bd7 Qe3 Bd1 Qa5 Bf7 Rg8 Bc6 Bh8 Nba6 Rae8 Nb8 Re4 Rh2 Ke7 Rh1 Bd4 Rh2 Kf6 Be6 Kg7 f6+ Kh7 f7 Nf5 Rh1 Kh6 f8Q+ Kh5 Qe8 Kh4 Bf7 Kg3 Qe6 Qf3 Rh2 Bf2 Rh1 Qe3 Rh2 Nh4 f5 Ra4 f6 Nf5 Bfe8 Rf4 f7 Rf3 Rh1 Kg2 Bed7 Rg3 Bc8 Qa3 Ba6 Ba4 Bc4 Bb5 Rb1 a1R Rb2 Rb1 Ra2 Qb2 Ra3 Qa2 Be8 Ba6 Kc6 Bb5+ Kb7 Ra1 Ka8 h2 Re1 Rb1 Re2 Ra1 Rd2 Rb1 Rd5 Rbb2 Bc6 Rd2 Qe7 Rbc2 Qe6 Rd4 Bd7 Nfh6 Rh5 Nf5 Bc6+
2B2kqN/3Q1Qqr/qrb1p1Q1/1R2p2b/1PBQ4/1r1N1Q2/2R2p2/b1K2n2 b - - 0 1 illegal: No possible last move, all moves rejected
4q1bQ/N1RRnRK1/1N1pp3/2RB3P/2n4n/Rp2k3/r3rn2/1r1B1n1Q b - - 0 1 legal: proof: g4 c5 f4 f5 gxf5 a5 f6 e6 d4 cxd4 b4 axb4 f5 h6 Bg5 Bd6 e3 Bf4 exf4 hxg5 Kd2 Kf7 Kd3 b5 Ke4 g6 Ke5 b3 a4 b2 c4 b4 h4 g4 h5 d3 a5 g5 c5 g3 c6 b3 a6 d2 c7 g2 a7 g4 Be2 g3 Nc3 b1N Na4 Qf8 Ra3 Ne7 Nb6 Ba6 c8R Bd3 Rc5 Qe8 Nf3 g1N Nd4 g2 Nb5 Rf8 Rh4 Nh3 Qh1 g1N Bd1 Nf2 Rh3 Bc2 Rhc3 Rg8 Rc7 Rg2 R3c5 Nbc6+ Kd6 Rd8 a8B Na5 Na7 Nf3 Bd5 Nh4 Ke5 Ra8 Nc6 Kf8 f7 Kg7 f8R Kh6 Kf6 d6 Na7 Nc4 Rf7 Bd3 Bg4 d1R Be2 Rc1 Bd1 Nbd2 Rg7 Qb5 Kf7 Qa4 f6 Rb1 f5 Nf1 Rh7+ Kg5 Kg7 Bc2 f7 Qe8 f8Q Be4 f6 Kf4+ Bg4 Bd3 f7 Ke3 Qh8 Bg6 f8R Bf7 Rd7 Bg8 Rf7 Nd1 Rdc7 Re2 Rh6 Nf2 Rhf6 Nc6 Rfd7 Ne7 Rf7 Ree1 Bd1 Re2 Nc6 Ra5 Ra1 Raa2 Na7 Rab2 Ra4 Ra2 Ra3
R6B/RqR2Qr1/4Nq2/2rr2BK/q2n1p2/P2Qn1NR/2pp1k1R/r1b5 b - - 0 1 legal: proof: d4 a5 c4 h5 b4 axb4 g4 d5 gxh5 dxc4 Qc2 e6 Qd2 Ra7 Qd1 Ra8 e4 Kd7 d5 Qe7 d6 Qh4 Bg2 Qd8 e5 Ke8 Bd5 exd5 f3 Be6 Be3 Bf5 Bc1 Be4 fxe4 Rh7 Qd4 Rh6 Qd1 Rh8 Ke2 Kd7 Kf3 Ke6 Kg4 f5+ Kg3 g5 h4 c5 h6 b5 h7 d4 h5 d3 h6 d2 d7 g4 Qe2 b3 Rh5 b2 Qh2 f4+ Kg2 b4 Ne2 g3 Kf3 b3 Kg4 g2 Rh3 g1R+ Qg3 c3 Na3 b1Q Bb2 c2 Nb5 c1R Kh5 c4 Qd3 c3 Ng3 Qf6 d8R Ne7 Rc8 Nbc6 Rc7 Nd4 Rh1 Rg8 h8B Rd8 h7 Nd5 Ba3 b2 Be7 Ne3 Rh3 Qg7 Bg5 Qc2 a3 b1Q Ra7 Qa4 Nc7+ Kd7 e6+ Kd6 e7 Kc5 e8Q Rd5 e5 Qb7 e6 Qf6 e7 Bg7 Rb1 c2 Qf7 Rc8 Rb6 Ra1 e8R Rg2 Re7 Rgg1 Rba6 Rg2 Qe4 Kc4 Qf3 Kd3 Ne6 Rcc5 Rc7 Rgg1 Ra8 Rg2 R6a7 Rgg1 Nh1 Rg2 Qe4+ Ke2 Qf5 Rg4 Ng3+ Kf2 Qd3 Qd8 Qd7 Be5 Qf7 Qf6 Bh6 Rg8 Bg5 Rg7 Rh1 Nf1 Kg4 Nc6 Kh4 Rg6 Bg7 Bb2 h8R Nd4 Rh5 Ne3 Bh8 Bc1 Rh7 Nf1 Kg4 Rg7 R7h3 Ne3+ Kh4 Qaa6 Kh5 Qa4 R1h2+
BR1Q3q/1K4RR/R1p5/5R2/4Nqqb/r2rB1p1/Qbp2qP1/k1Nrn3 b - - 0 1 legal: proof: c4 a5 e4 d5 a4 dxc4 b4 axb4 e5 b5 e6 b3 Na3 fxe6 Nb1 e5 Qf3 e4 Qg4 Qd5 Qd1 Qd8 h4 g5 Be2 b4 Bd3 Ba6 Bf1 Bb5 axb5 Ra4 Ba3 Ra5 Bc1 Ra8 Ba3 g4 Nf3 Nd7 Ng1 Ne5 Bb2 Nf7 Bc1 Ng5 hxg5 Qd6 Qc2 Qd7 Qd1 Qd8 Ke2 Kf7 Ke3 Ke6 f4 Kd5 d4 h5 b6 e5 f5 h4 b7 h3 b8Q b2 f6 c6 g6 c3 g7 b3 f7 c2 Ra3 h2 Qe2 Nh6 g8R Qd6 Qb6 Bg7 f8R Nf5+ Kd2 e3+ Kc3 e4 Qb8 Nh4 Qc7 Nf3 Ra6 Ne1 Rb6 Ra3 Qf3 e2 Ra6 Rh3 Be3 Qf4 Nd2 b1Q Kb4 b2 Rf5+ Be5 Rg6 Qd1 Rg7 Rd3 Ka5 b1R Qa7 Rc1 Kb6 Rg3 Nb3 Kc4 d5 Kc3 d6 Kb2 d7 Kb1 d8R Bb2 Nc5 Ra3 Rgg5 Ka1 Rg7 Qd4 Qe7 Rd1 Rb8 Qa4 Qd8 Rad3 Bf2 e3 Ne4 Ra3 Raa5 Nd3 Raa8 e1Q Nd2 e2 Qfd5 Qf3 Bc5 Qaf4 Ne4 Qef2 Qb3 e1B Ne2 Qg1 Nc1 Bf2 Bd4 Ne1 Ba6 Qe2 Qbg8 Rgd3 Be3 Bg3 Qgd5 Qgf2 Bb7 Qef3 Ra6 Q3e2 Rf1 h1Q Ba8 Qh8 Rh1 Qef3 Rh6 Bh4 Kb7 g3 Rhh7 Q3g4 Qa2+
q7/1p3Nr1/1Qr2NBN/P1r2b1q/K5Rp/2R2n1k/1Q1b1pNr/Nq4B1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 h4 g5 g3 Nc6 Nf3 Nd4 Ng1 Ne6 Kf2 g4 Ke1 Ng5 hxg5 fxg3 a4 Ke7 d4 c5 Kd2 f5 Kc2 h5 Kb3 h4 e4 f4 e5 g2 d6+ Ke6 d5+ Kf5 g6 f3 g7 g3 a5 Kg4 d7 c4+ Ka4 b3 d6 b2 e6 c3 e7 c2 e8N Rh6 Nd2 b1Q Bd3 Nf6 g8N Nh7 Ne2 g1Q Nb3 g2 Ra3 Ng5 Nf4 Qc5 Qe2 g1R Be3 c1R Ng2 Rc2 Na1 Re6 Qd2 Bh6 Rc3 Ra6 Bh7 Rc6 Bg6 Re5 Nef6+ Kg3 Qc1 Qe8 d8Q Bf5 Qc7 Qa8 d7 Qd5 d8N Rb2 Ne1 Rh2 Nf7 Kh3 Ng2 Qd1+ Qc2 Rec5 Qb6 Qd5 Qcb2 f2 Bf4+ Nf3 Bc7 Bd2 Ngh6 Re1 Rg1 Re8 Bg3 Rg8 Be5 Rg7 Bc7 Rh1 Bh2 Qe5 Ne3 Qee8 Rg4 Qh8 Bg1 Rh2 Ng2 Qh7 Nhg8 Qh5 Ngh6
2B3r1/Pb2q2B/3qrNB1/1n2bpBQ/QpBN1r2/1R4b1/1K4kp/3R3b b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 d4 g5 h4 gxh4 Nd2 c5 Nb1 c4 Na3 Na6 Nb1 Nc5 dxc5 Be6 Nh3 Bd7 Ng1 Bc8 Kd2 Ke7 Kc2 Kf6 e4 Ke5 a4 f5 g4 b5 a5 h5 c6 c3 d6 b3+ Kd3 c2 Kc3 f3 g5 b4+ Kb2 f2 g6 h3 d7 h4 a6 h2 c7 h3 a7 Bg7 Nd2 Kf4+ e5 Kg3 Nc4 Bb7 c8B Nh6 Rb1 Nf7 Nb6 Rg8 Bc4 f1R Bg5 Nd6 Nd5 Rf4 Qh5 Nb5 Nf3 Qe7 d8Q Kg2 Rhd1 h1B Qe8 h2 Nd4 Bh8 e6 Be5 g7 c1B+ Ka1 Bd2 Kb2 Be1 Nf6 Bg3 Qd7 Re8 g8B Qd6 e7 Rb8 Kc1 b2+ Kc2 Ra8 Bh7 Rg8 e8B Rg6 Ng4 Re6 Nf6 Rb8 Beg6 Qe7 Ra1 Qd6 Ra3 b1Q+ Kd2 Qd3+ Kc1 Qe7 Rb3 Ra8 Qd8 Rb8 Qa5 Ra8 Qa4 Rb8 Ne2 Qdd6 Nd4 Ra8 Kb2 Rb8 Bd7 Rg8 Bc8
3R1k1K/Qq1n3Q/3p2qp/n1n3Qb/1Qb1R3/2Nq2Bq/2B1Pp1b/Q6N b - - 0 1 illegal: No possible last move, all moves rejected
8/1n2BqBn/qR2nNkb/Nqpp3q/5pR1/nQ1N1r2/1N1P4/1QN3K1 b - - 0 1 legal: proof: c4 b5 b4 e5 f4 exf4 Qa4 a5 Nc3 axb4 Rb1 Ra5 Qd1 b3 Ra1 b4 Nb1 Rb5 cxb5 f5 Qc2 h5 Qd1 Bb7 g4 f3 Bh3 f4 Nc3 Be4 Nb1 Bf5 gxf5 Bc5 Bg4 hxg4 Bb2 Be7 Bc1 Bf8 Kf2 Kf7 h4 c5 e4 d5 a4 g5 a5 b2 a6 b3 f6 Bd6 e5 Nd7 h5 Qa8 e6+ Ke8 b6 Bf8 a7 Bh6 e7 Kf7 e8N Nf8 b7 Ne6 Ne2 g3+ Kg1 g2 b8Q g4 Na3 b1N Nc4 b2 Ra6 Nc3 Na5 b1N Qbb3 Na3 Rh4 Ne4 Bb2 Nd6 Qb1 Nb7 Nc1 Qb8 a8N f2+ Kh2 f1Q Rb6 Qa6 Kg1 Qc7 Be5 Qd7 Bd6 Qdb5 Be7 Bf8 h6 Bg7 h7 Bh6 Qa1 Kg6 f7 Nf6 Qaa2 Rg8 h8B Nh7 Nf6 Re8 Rc6 Rg8 Nb6 Rg7 Nbc4 Rg8 Rb6 Rb8 Kf2 g1Q+ Ke2 g3 Bg7 Qe3+ Kf1 Qf3+ Kg1 g2 Nb2 Qh5 f8N+ Kg5 N8d7 Kg6 Ng4 Re8 Ndf6 Rg8 Nf2 Ra8 Kh2 g1Q+ Kh3 Qgg4+ Kh2 Qgf5 Nfd3 Rh8 Kg1 Re8 Ng4 Qf7 Nf6 Nc7 Bef8 Re3 Qb1 Rf3 Be7 Ne6 Rg4+
4rR2/1pr2b1p/1N3bPQ/1q1R3q/N1kp1n1R/3RQ2n/3BpR2/2K1Bn2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 Qh5 axb4 Qd1 f5 exf5 g5 h4 Nf6 hxg5 Ng8 a3 Nf6 Bc4 Ng8 Ba2 b3 Ke2 bxa2 Kf1 Ra7 Ke1 Ra8 Kd2 Kf7 c4 d5 f4 e5 g4 d3 a4 e4 a5 d4 g6+ Kf6 a6 Qd6 g5+ Ke7 f6+ Ke6 g7 Qc6 a7 Qe8 c5 Kd5 c6 Bf5 f7 Qe7 g6 Qe8 c7 Be7 f8B Ba3 c8R Nf6 g8R Qc6 Qe2 Kc4 Nf3 Be6 f5 Bf7 Nc3 Nd5 f6 Be7 Qe3 Nf4 Rh4 Nd7 Na4 Nh3 Rd8 Rc8 a8R Nb6 Rd5 Rc7 Raa5 Bd8 Bb4 Qb5 Rf8 Rg8 Rb1 a1N Rb3 Nc2 Kd1 d2 Rd3 Be7 Rf5 Nd5 Rff4 Be8 f7 Bf6 Rf5 Ndf4 Ne5+ Kd5 Nd7+ Kc4 Qf2 e3 Qg3 Ng2 Rf2 Ngf4 Bc3 Ne1 Bb4 Neg2 Kc2 e2 Qe3 d1Q+ Kb2 Qe1 Bd2 Qh1 Be1 Qh2 Kc1 Rh8 Bbd2 Rg8 Qe5 Ne3 Qe7 Nf1 Qe3 Qc6 Rah5 Qb5 Rd5 Rh8 Rg8 Qh1 f8Q Bf7 Qh6 Qf3 Re8 Qh5 Rb8 Re8 Rd8 Re7 Rf8 Re8 Ndb6+
8/PQ1k1n1Q/pp4KN/r1pr1n1B/1q1r3Q/3R1BQ1/1Q2p1bR/q2N2b1 b - - 0 1 illegal: No extended proof kernel
2rn1B1r/R3bp2/Q2PQN1B/q1p1B1rR/2B1n3/p4p2/1B1q1N1K/1rk5 b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 exf4 a4 g5 h4 gxh4 d4 b5 c4 bxc4 d6 Ba6 d5 Bb5 axb5 Qc8 Ke2 Qd7 Ke1 Qd8 Kf2 Kd7 g4 a5 Kg2 h5 b4 c5 b6 c3 b7 h3+ Kh2 h4 b5 f3 b6 a4 g5 c2 g6 Bh6 g7 Bg5 Nc3 Be7 Bb2 c1Q Qe1 Nf6 g8Q Nc6 b8B Ne4 b7 Qa5 Qg6 Nd8 Bc4 Qd2+ Qe2 Rh5 Ra3 Rg5 Qe6+ Ke8 Bc7 Rc8 b8B Kf8 d7 Kg7 Be5+ Kh7 Qg4 Kh6 Qe6+ Kh5 Qa6 Kg4 Bg7 Kf5 Bbe5 Kg4 d6 Kf5 Rb3 a3 Bh6 Kg4 Rb7 Kf5 Beg7 Kg4 Ra7 Kf4 Qg2 Ke3 Bf8 Qd3 Qf1 Kd2 Nd5 Kc2 Nf6 Qdd2+ Qg2 Kd1 Ne2+ Kc2 Nc1 Kb1 Nd3+ Kc2 Kg1 Kb1 Nf2 h2+ Kf1 h3 Qg4 Kc2 Qe6 Kb1 Rg1 h1R Be5 Nb7 d8B Rh2 Rh1 Kc1 Bc7 Nd8 Bb6 Qab4 Ba5 Qa4 Bac3 Qa5 Bcd4 Rhg2 Qc6 h2 Qa6 Rg8 Bc3 Rh8 Bb2+ Kb1 Rg1 Rg5 Rg4 h1R+ Rg1 Rh2 Rh1 Rhg2 Rh5 Rh2 N2g4 Re2 Kg1 Re1+ Bf1 Rc1 Kh1 Re1 Nf2 Kc2 Kh2 Rb1 Ba1 Kc1 Bc4 Qc7 Bac3 Qa5 Bb2+
3B2n1/3R4/3pR2P/n1pBNQ1K/3kN1N1/4Qr2/qr1rpp1n/2Nrq2N b - - 0 1 illegal: No proof kernel
2K1RN1q/Nr2pn2/2p2R2/q1Bb1p1b/2q1Rp1r/2pQP2k/1R5R/6QB b - - 0 1 legal: proof: f4 b5 c4 a5 b4 axb4 f5 d5 f6 dxc4 a3 b3 Nc3 b4 Rb1 b2 Ra1 gxf6 Nb1 f5 Qb3 f4 Qc2 Ra7 Qd1 Ra8 g4 b3 h4 Be6 g5 Bh6 g6 Bg5 hxg5 Nc6 Rh6 Bf5 Rh1 Nb4 axb4 Bc8 Kf2 Kd7 Kf3 Ke6 Ke4 h5 d4 c6 g7 f6 b5 c3 g6 h4 b6 h3 e3 h2 b7 Rh7 b8R Ra2 d5+ Kd7 Kf5 Qb6 d6 Ba6 Bg2 Be2 Na3 b1Q+ Qd3 b2 Nf3 Qa7 Nb5 Rh3 Ng5 Ra4 Nh7 Rd4 Ra4 Qa8 Na7 Qa2 Rc4 b1B Ba3 Rh6 Bc5 Rh4 Rb2 Bh5 Ra4 Qc4 Nf8+ Ke8 Be4 Ba2 d7+ Kd8 Bd5 Nh6+ Ke6 Nf7 g8Q Kc7 d8R f5 Rg1 h1Q g7 Bb3 Rg3 Qa1 Rb4 Qa5 Rd6 Qb8 Rh3 Qd8 Qe4 Rd1 Rhh2 Rb1 Qd3 Ba2 Rbg2 Rb2 Ra4 Rb7 Rb2 Bb3 Qh7 Qb8 Qg6 Qe8 Qg1 Qc8+ Nd7 Qh8 g8R Ba2 Rg6 Kd8 Rf6 Ke8 Rab4 Qb3 Re4 Qc4 Ne5 Kf8 Ng6+ Kg7 Rd8 Kh6 Re8 Bb3 Qgd1 Kg5 Nf8 Ba2 Qe1 Kg4 Qh1 Rb8 Kd7 Rb7+ Kc8 Kg3 Qa1 Bb3 Ree6 Kg4 Bh1 Kg3 Re4 Ba2 Rhf2 Kh3 Qg1 Qd4 Qdb1 Bd5 Qd3 Qc4 Rh2#
2NBB1N1/p1q1q1pP/k4p2/5R2/3B3p/1B3n2/q1Qb1pQ1/1rbK1bBR b - - 0 1 illegal: No proof kernel
5q1k/2p2n2/1R1pbB2/pr5Q/B2Bp2q/5R1p/1BP3BQ/1rNq1qNK b - - 0 1 illegal: No possible last move
2B1N2B/7p/RN1p2p1/1Pr4n/b1N3K1/1pNN1Rn1/1p3Q1p/2knqbQ1 b - - 0 1 illegal: No proof kernel
NNr1q3/6bb/K1Nn2b1/nrqR4/kB3n2/2n1NRQ1/q1PQ2B1/3nr2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 h5 Kc4 a5 g4 d5+ Kd3 Kd7 b4 a4 e4 f3 b6 Kc6 b7 Kb5 g5 f2 e5 f4 g6 h3 g7 h4 e6 f3 e7 a3 e8N a2 Nd2 h2 Be2 f1R Nc7+ Ka4 b5 h3 b6 f2 Nc4 Rh5 Bf3 Nc6 b8Q Bf5+ Be4 Nge7 g8N Qe8 b7 Bg7 Bd2 Bg6 Na6 Nf5 Qc7 Rc8 b8N Nd6 Rc1 a1Q Ba5 Re1 Nf6 f1B+ Qe2 Qa2 Bb4 Na5 Nc6 Rf5 Kd2 d3 Kc3 d2 Nab8 d1N+ Kd4 Re5 Kc5 d4+ Kb6 d3 Bg2 d2 Nfd7 Nc3 Ne3 d1N Qd2 Bfd3 Ne2 Rb5+ Ka6 Bde4 Rg1 h1Q Rf1 h2 Rf3 Qg1 Ng3 h1N Rb1 Nhf2 Nh1 Nh3 Rb3 Nd5 Rd3 N5c3 Rd4 Nf4 Rd5 Ndb7 Qe5 Nd6 Qg5 Bef5 Qg3 Qf2 Nf8 Bh7 Ne6 Bfg6 Nc7 Qg1 Na8 Qf2 Nf1 Qc5 Ne3
2R2qRN/1Rn1r3/Q1b5/2nq4/r1P3KQ/2N1r3/1RnkB2q/bnRnB1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 g4 Kg5 e4 f5 b4 a5 c4 d5 b6 h5 b7 h3 b5 h4 e5 h2 b6 a4 e6 h3 e7 a3 e8Q a2 Be2 d3 Qe3 d2 Qa3 d4 Qc5 d3 Qb5 Na6 b8R Qd5+ Kf2 f3 Kg3 f4+ Kf2 Bb7 Ba3 Nf6 Bc5 Ne8 Nc3 Nec7 Qc6 Rh7 Ba3 Bc5+ Kf1 Re7 Nb1 f2 Qca4 Bc6 b7 Be3 Bf3 Nc5 Qb5 Ra4 Qe1 d1R Rc8 d2 Ke2 f1N b8R Bd4+ Be4 Ne3 Kf3 Nc2 Qa6 Be3 Qf2 Re1 Ne2 Qf5 Rb5 Qf8 Bb4 Bd4 Rf1 Be3 Rb7 h1Q+ Qg2 Qg1 Qf2 h2 Bd5 d1Q Bc3 h1N Qh2 Nf2 Qh4+ Kg6 g5 Kf5 g6 Qh2 Bb4 Ke5 Be4 Qd5 g7 Bd4 g8R Be3 Ng1 Kd4 Nh3 Re2 Rc1 Nd1 Ba5 Bg1 Be1 Re3+ Kg4 f3 Ng5 f2 Nc3 f1N Bf3 Kd3 Nf7 Nd2 Rab1 a1B R1b2 Nb1 Nh8 Nd2 Bf2 Nb1 Be2+ Kd2 Be1+
1QN5/QRN2B2/1K1n3n/3r1Q2/1nb2bnn/k2rR3/P3b1qr/2bQB1bQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 h4 Kd6 d4 f5 e4 c5 h5 b5 h6 g5 h7 b3 Be3 g3+ Ke2 g2 Kd3 f3 Qe1 f4 Kc3 c4 Kb4 c3 Rh4 f2 Bd2 b2 Na3 b1N Be3 g4 Qd2 g3 Rh3 c2 Qc3 c1B Qd2 f3 Bd3 f1B Qd1 f2 Nf3 g1N Bc4 g2 Ne5 Qg5 Bd2 Ra5 Be1 Bh6 Re3 Be6 Nd7 Be2 Nb6 Nc3 Rb1 f1N Rb2 Nh2 e5+ Kc7 Kc5 Ng4 Nc8 Nc6 Qd3 Nb4 Qf5 Nf3 d6+ Kd7 d5 g1B Rb1 Ne4+ Kb6 Nh4 Rb3 Qg7 Rb2 Bf4 Rb3 Kd8 d7 Nd6 Rb1 Bf7 e6 N8h6 Rb3 Nd3 Rb1 b4 Nb5 b3 Nc7 b2 Bb3 Nb4 Bc4 Re8 h8Q Qg6 Qd4 Rh8 Qde4 Ra3 Qh1 Rd3 Na7 Ke7 Nc8+ Kf8 d8Q+ Ne8 Qd7 Nd6 Ra1 b1R Qa4 Rb2 Qa7 Rbd2 Rb1 Rh7 Qf6 Qe4 Qf5 Qg2 e7+ Kg7 e8Q Rc3 Qfe6 Ng6 Bg3 Nc6 Rb4 Nb7 d6 Ng8 d7 Rh2 d8Q N8h6 Qe4 Nh4 Qdd3 Kf6 Rb3 Nd6 Ne7 Bg8 Rb5 Nb4 Kc5 Ra3 Rb7 Ra5+ Bb5 Bc4 Kb6 Rd1 Bc6 Rd5 Qeb8 Rd2 Qb3 R2d4 Nc8 Rd3 Qe8 Kf5 Qd1 Kf6 Bf2 Kf5 Qd7+ Kf6 Rh3 Ke5 Re3+ Kd4 Qf5 Kc3 Be8 Kb2 Bf7 Re5 Na6 Red5 Be1 Ka3 Nc7+
1K1k1q2/1RR1rnb1/5r2/r1N1q1n1/1R3nPB/1n1bnq2/2Q1R1RN/2Qn1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 d5 e4 f5 c4 h5 b4 a4 g4 h3 c5 h4 c6 h2 c7 d3 e5 a3 b6 d2 b7 d4 b5 h3 b6 d3 e6 a2 e7 Nf6 Na3 Rh7 Qe2 d1N Bb2 d2 Nc2 Nbd7 b8R Ne3 b7 d1N Rb1 a1N Qc4 Nh5 Ne1 Nb3 Rc1 Bg7 Ne2 Ra5 Nd4 Ne5+ Ke2 Qd6 Ne6 Nf7 Kf3 Qe5 Rg1 h1N Rg3 h2 Qc2 Nhf2 Nc5 h1Q+ Rg2 Ne4 Bd4 Qd5 Bf6 Qe5 Bh4 Neg5+ Ke2 f3+ Kd3 f2 Nf3 f4 Nh2 Nf5 Kc4 f3 Kb4 Nf4 Kc4 Nfe3+ Kb4 Ra1 Kb5 Ra2 Kb6 Ra5 Ba6 f1R Ka7 f2 Ka8 Nd8 Ka7 Bf5 c8Q Bd3 Qc7 Kf7 e8R+ Kf6 Re7 Nf7 Rbe8 Ra1 b8R Ra5 Rg1 Qf3 Rg2 Rg1 Rb4 f1Q Reb8 Q1f2 R8b5 Re1 Rb7 Rh6 Qc8 Qf1 Rec7 Re2 Kb8 Q1f2 Nd7+ Ke7 Rb1 Rb6 Rb2 Rf6 Qc1 Re1 Re2 Qf1 Qh8 Q1f2 Qh7 Kd8 Nc5 Qc6 Qb2 Qff3 Bc4 Qcd6 Qc1 Qf8 Ba6 Bb5 Qhc2 Bd3 Bb5 Qe6 Ba4 Nc4 Re5 Bh7 Bb5 Qed6 Rd5 Re7 Ba6 Nce3 Bf1 Bf5 Rdd2 Bd3 Rdf2 Qe5 Re2
1QrB2nb/5bq1/1N4QN/b2bN2K/2N1B1P1/rkN3R1/3q1bR1/3nrnb1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Ke6 g4 Kd5 b4 Kc4 c3 e5 b6 d5 f5 a5 b7 h5 f6 e3 Kf3+ e2 f7 a4 b5 a3 b6 a2 Be3 e4+ Kf4 h3 Qe1 d3 Nf3 d2 Qh4 d1Q Qg3 h2 Bh3 e1B Ng1 h4 Qf3 d4 Ne2 d3 Nd4 d2 Nf5 Bc5 f8N Nd7 b8Q Ndf6 Kg5 Qc7 b7 Qg7+ Ng6 Ra3 Bg2 h3 Nh6 Bf2 Rg1 h1B Qf5 Nd5 Kh5 h2 Bg5 e3 Bd8 e2 Ne5+ Kb3 c4 e1B Nc3 Ne3 Qg6 Nf1 Be4 Be6 Rg2 Bf7 Rg3 Ba7 c5 Bg1 c6 Baf2 Rc1 a1B c7 Qc2 c8N d1N Nc4 Qd2 N8b6 Bg2 Rh3 h1R Rc2 Bf3 Qd6 Bb2 b8N Bg2 Nc6 Bf3 Bd3 B3d5 N6e5 Ba1 Na2 Bc3 Qb8 Ba5 Nc3 Bd4 Qa8 Bef2 Be4 Nh2 Rh4 Qf8 Qa6 Qe2 Ra2 Bg3 Bc7 Ne7 Qb7 Bge3 Nd3 Re1 Qa8 Nf1 Rd2 Bg1 Qa7 Rg8 Rh2 Bh8 Rh3 Qg7 Qb8 Rc8 Nde5 Ng8 Bd8 Qe3 Rdh2 Qd2 Rg2 B3f2 Rhg3
NBBQ1R2/4n3/nb1P1N1r/Bk2b3/bR2Bn2/2q2r1n/2rn1q2/2BKnQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 d4 f5 g4 h5 b4 c5 g5 a5 b6 Kc6 e5 c3 b7 c4 e6 a4 d5+ Kb5 e7 f3 e8B+ Bd7 g6 f4 g7 c2 Ba3 c1Q Bd3 f2+ Ke2 f1N Qb3 h3 Qc3 h2 Bb2 a3 Bf5 a2 Bf7 f3+ Kf2 h4 Be8 h3 Qd3 Rh6 Nd2 Ne7 g8Q Na6 b8B Qc3 Ke1 f2+ Kd1 Qb6 Ne4 Nd2 Bc7 Rc8 Rc1 a1B Beg6 f1N Qb1 Ng3 Nf3 Ne2 Nf6 Nf4 Ne5 Qf2 Rf1 h1N Ba5 h2 d6 Bg7 Ba3 Rh3 Bb2 Rf3 Qd8 Be8 Ned7 Rc5 Nd5 Bd4 N7f6 Rc6 Bd7 Bb6 Nc7+ Ka4 b5 Qe5 Rg1 Qfd4 Rg3 c3 Bg4 Nf2+ Kc2 h1R Bc8 Rh6 Be4 N2h3 Na8 Qf2 Rg8 Qec5 Rf8 Qa3 Re1 Rc7 Kc1 c2 Re3 Qb4 Ba3 Be5 Rc3 Bbd4 b6 Qb3 b7 Bb6 b8B Qc4 Kb2 c1N Kc2 Ncd3 Qh1 Ne1+ Kd1 Qcd4 Qf1 Rc4 Rd3 Rc2 Bc1 Qc3 Rd5 Bf7 Rc5 Bb3 Rc4+ Kb5 Bh7 Ba4 Bg6 Qh2 Be4 Qf2 Rb4+
Knb1Br2/nr2rrR1/QQ3r1B/5QN1/2qP2R1/b1q3qN/Q1Qkb1q1/8 b - - 0 1 illegal: No possible last move, all moves rejected
n2RrBb1/Rq1b1Q2/1brQr3/4n3/2R5/2b1r1PN/Bkb2K2/1b1bRNR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 b4 Kf6 c4 Ke5 g3 d5 b6 h5 c5 f5 b5 a5 b7 a4 c6 f3 b6 d3 c7 Kd4 e5 f4 e6 a3 e7 a2 e8R d2+ Kf2 h3 Rh2 h4 Bb5 Ra6 Bc4 Ne7 Rg2 h2 Qc2 d1B Qa4 h1R Ba3 h3 Bb4 h2 Ke1 f2+ Kf1 Nec6 Nd2 Bc5 Qc2 Qd7 Re6 Ne5 Rc6 Re8 Qh7 Bc2 Rc1 a1B Qg8 Bc3 Ke2 f1R Rb1 Re1+ Kf2 f3 Bf1 Re3 Ba5 Qe7 Rd6 Nbd7 b8Q Qg7 b7 Nb6 Qh8 Na8 Bb4 Bb6 Qh7 Bd7 Bd3 Qf7 Nh3 Rc1 c8R h1B Bf1 Qg7 Kg1 f2+ Kh2 Qe7 Bc4 f1B Kg1 Bfd3+ Kf2 B3f5 Qg8 Bfe6 Qh7 Bg8 Rg1 Bhe4 Ba2 Kd3 Nf1 d4 Ra1 Bb1 Rd5 Kc2 Rc4 d3 Qd6 d2 b8R d1B Rd8 Kb2 Ra5 Bec2 Qh5 Qh7 Qf7 Qe4 Ra3 Qb7 Ra5 Bc7 Ra4 Rc6 Ra7 Bb6 Qb8 Rh6 Bf8 Rhe6 Qd6 Be4 Rc7 Bd2 Qh5 Bg4 Bd5 Bbd3 R1a4 Bb1 Qf7 Rcc3 Rd4 Bec2 Rd3 Rc5 Ba2 Bc3 Rd1 Rc4 Re1 Bf3 Rc5 Bfd1 Rca5 Rc5 Ra4 Rc6 Rc4
NrQ5/2K2n2/5B2/Q1R1RPnB/B1BN1qb1/b2nb1qk/1q2rbB1/4rr2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Ke2 Kf7 f4 Kg6 a4 Kf5 c4 Kg4 g3 h5 a5 e5 c5 d5 a6 b5 c6 e3 Kd3+ e2 a7 b3 c7 h4 g6 h3 g7 e4+ Kd2 b2 Qe1 h2 Nh3 d3 Kc3 d2 Kd4 d1N Ke5 e3 Na3 b1Q Ra2 b4 Bd2 d4 Qf2 e1B Nb5 e2 Ra6 b3 Ra3 b2 Bc1 d3 Ng5 d2 Qc5 Nf2 Rc3 d1R Nf3 Ne4 Nfd4 Bf2 Bg2 Nh6 g8B e1B Bc4 Bd2 Re1 h1Q Qb4 Be6 c8Q Qh3 Nc7 Bde3 Qa5 Qdh4 Bb3 Bc5 Ba4 Ba3 Rc5 Ng5 Kd6 Na6 Bd2 Rc1 Bc3 Rb8 Na8 Nb4 Kc7 Nd3 Re2 Nhf7 f5 Re8 Re1 Bb3 Re2 Bd1 Re1 Bf4+ Ree5 Qh2 Bf3+ Kh3 Bh5 B4e3 g4 Q4g3 Bd7 Qa1 Ba4 b1R Bb2 Nh7 g5 Bg4 g6 Rf1 g7 Nhg5 g8B Rbe1 Bc3 Nh6 Bc4 Qb2 Nb6 Nhf7 a8B Qf4 Be4 Qg1 Na8 Qgg3 Bg2+ Kh2 Ne6 Nd6 Re4 Bc1 Bh1 Kh3 Bf6 Bd2 Nd4 Bc1 Re6 Ndf7+ Rd6 R8e5 Rdd5 R5e2+ Re5 Bce3 Bg2+
QB3q2/1b1Bbq2/r5R1/1PnN1qQR/Q3nQ2/2q2rn1/kN2rQ2/1b1K2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Kc5 g5 Kb4 g6 a5 b3 h5 e5 d5 g7 f5 c5 f3 e6 h3 c6 h2 e7 f4 e8Q f2+ Ke2 a4 b6 d3+ Kd2 f3 b7 a3 c7 a2 Qc6 d4 Nh3 h4 Na3 Ra6 Bb2 Nf6 g8Q Bf5 c8Q Ne4+ Kc1 d2+ Kc2 Be7 Nf4 h3 Bd3 f1R Qh7 f2 Qe2 Nd7 Qg8 Ndc5 Ng2 Qf8 Rc1 a1B Qf6 d1Q+ Kb1 Qe1 Qa8 Qc3 Bb5 d3 b8Q d2 Nc4 d1Q Qba7 Qd5 Bd7 Qdf7 Qgg5 Rh4 Rg1 h1N Nge3 h2 Rg3 Bg6 Qff4 Rh6 Rh3 Nhg3 Rh5 h1B Rd1 Bg2 Qe1 Bf5 Rd6 Re6 Rc6 Re5 Rg6 Bf3 Bc1 Ree6 Nb2 Ka3 b4 Bh1 Nc2+ Kb3 Be3 Re5 Kc1 Ka2 b5 Re6 Nc4 Bb2+ Kd1 Bc1 Bd4 Be3 Bg7 Nf6 Nb2 Ra5 Rgh6 Bb7 Qfg4 Re4 Q7b8 Ra6 Rg6 Bd4 Bh8 Re2 Ne3 Bb1 Nd5 Be3 Qb4 Nfe4 Bf6 Rh1 Qd4 f1Q Be5 Q1f5 Bf4 Rf1 Qa4+ Qa3 Qd6 Bg1 Be5 Rf3 Qf2 Qg4 Qdf6 Qh3 Qff4 Qhf5 Qad4 Qb4 Bb8 Qc3 Qa4+
BR2rB2/1N2RP2/3Q2n1/1br2q1N/3kB3/nr2nBK1/3rrnB1/b2Q1b1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 Kf7 g4 Kf6 f4 d5 Kf2 h5 a4 b5 a5 e5 c5 d3 c6 e4 a6 h3 c7 d4 a7 d2 Rh2 h4 Ra4 e3+ Kf3 b3 Be2 b2 Rb4 d3 Qc2 d1B Rb3 b4 Qc5 d2 Qc4 Nc6 Na3 b1N Qb5 Rh5 Rc3 b3 Nc4 b2 Rb3 Nb4 Qd7 Nc2 Nd6 Ne7 Rb8 Nba3 Nb7 b1R Qd3 Bd7 c8B Bb5 g5+ Kf7 g6+ Kf6 g7 Qd7 g8B Bg7 Kg4 Ng6 Bd5 Rb3 Bef3 e2 Bde4 e1R Re2 h2 Nh3 h1R Bg2 Qe6 Bef3 Qf7 Re7 Be2 Be6 d1R Bd5 Qe6 Be4 Bf1 Qe2 Rd7 Qd1 Re2 Be3 Bh8 Bc5 Qd5 Nf2 h3 Kg3 h2 Nh3 Ne3 Bd6 Qf7 Bb4 Rdd2 Bd6 Kg7 f6+ Kh6 Bb4 Rc5 f5 Qh7 f7 Kg7 Nf4 Kf6 f8Q+ Qf7 Ne6 Ke5 Nf4+ Kd4 f6 Qd5 f7 Qf5 Qh6 Bg7 Nh5 Bf6 Rh8 Re8 a8B Rc2 Qf4 Kc4 Nc5 Ba1 Bac6 Red8 Rg8 Kd4 Ba8 Rg1 Rc7 Rc8 Nb7 h1N+ Kh2 Nf2 Kg3 Rh1 Be7 Qd5 Qd6 Rc5 Re8 Rd8 Bf8 Rb8 Ree7 Rd8 Rc8 Re8 Qb6 Qd7 Rb8 Qf5 Qd6+
BkB5/b1R1Knr1/4b2n/Q2N1BQq/1n1P1q2/3r4/1r1pR1Nb/1Bb1b1B1 b - - 0 1 illegal: No proof kernel
2Kn1r2/4kBBr/Q2NNr1n/bNQ2qb1/p1Rq4/1P4nb/1Nr3r1/1N1R4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 e4 d5 h4 g5 c4 a5 c5 f3 Kg3 f2 h5 d3 e5 d4 b6 d2 e6 d3 h6 a4 b7 Ra7 c6 Qd7 b3 Ke7 h7 Nh6 c7 Nc6 b8N Nd8 Qe2 d1Q Rh4 d2 Na6 Bg7 Nb4 Bf6 Qa6 Rf8 Bh3 f1R h8N Bc3 Nd3 Ba5 Nf3 f4+ Kh2 Rb7 Nd4 f3 Kg3 f2 Bb2 Qb5 Nf7 Qf5 Nb5 Bd7 Kg2 g3 c8Q g4 Bg7 Rc7 Ng5 Rc2 Qc3 Rh1 Nb2 f1N Ne4 Rf6 Ned6 Rf8 Qc5 Rh2+ Kg1 Rf2 Kh1 g2+ Kg1 Ng3+ Kh2 g1R+ Bg2 Rf4 Bd5 Ne2 Bc4 Rh1+ Kg2 g3 Rg4 Rg1+ Kh3 g2 Bd5 Rf2 Kh4 Ng3 Rc4 Qd3 Kg5 R2f6 Bc6 Bc8 Be8 Q1f1 Bf7 d1R N1c3 Rdd2 Rd1 Rh1 Nb1 g1B Bh5 Nhf5 Bf7 Rh7 Kg4 Bf2 Kf4 Nh6+ Ke5 Bd4+ Kd5 Nb7 Kc6 Qff5 Rf1 Be3 Rd1 Bc3 Kc7 Bg5 Kb8 Rg2 Kc7 Ba5+ Kb8 Kd8 e7+ Kd7 e8N Nd8 Nec7 Ke7 Ne6 Qd4 Bh5 Bb7 Bg6 Bf3 Bh5 Bg4 Bf7 Bh3 Kc8
Q1K2B2/5B1R/2B3N1/Pnp2r2/Q5rn/2q1bnB1/N2r1Bk1/1qnq1nRb b - - 0 1 illegal: No possible last move
4q1N1/1Nb1RrRq/Nn2K2p/3N3b/Nr2B3/B1Q4n/P2b2Qn/2bk2br b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 b5 f4 h3 g4 e3 d3 b3 f5 Kb4 d4 c5 g5 e2 d6 e1B g6 h2 f6 c4 f7 c3 d7 b2 g7 c2 d5 Bd2 d6 Ra7 Ne2 Nh6 g8N Ng4+ Ke6 Qe8 Nbc3 b1Q Bb2 c1B Rg1 h1N Nf6 Nhf2 Ng3 Nh3 Qe1 Nh2 Kd5 e5 d8Q e4 d7 e3 Ng4 e2 Qg5 Bd6 f8N Bc7 d8N Nd7 Nf6 h6 Ng8 Qh7 Nge4 Nb6+ Kd4 Bg4 Nb7 Bf3 Qg2 Bh5 Ng6 Ra4 Qeg3 e1B Nec5 Bf2+ Qe3 Ra7 Bd3 Ra4 Re1 Bg1 Be4 Ra7 Nf4 Ra4 Nf6 Rf8 Ng8 Rf7 Rb1 Ra3 N3a4 Rb3 Ba1 Ka3 Na6 b4 Bc3 Rb2 Nd5 b3 Kc5 Rc2 Re2 b2 Ra1 b1R Re1 Bd8 Kd6 Rcb2 Bf6+ Rb3 Be7 Bc7+ Ke6+ Bb4 N4c5 Bbd2 Qeg3 Kb2 Re3 Rd3 Na4+ Kc2 Qg7 Rb4 Qc3+ Kd1 Rg3 Rf1 Rg7 Rdf3 Rb1 Rf7 Rb2 Bdf4 Re2 Bfd2 Bg6 Rb1 Re5 Bf2 Be4 Qa8 Ba3 Rh1 Rg4 Bg1 Rg7 Rf6+ Ke7 Rb4 Rf5 Rf8 Rff7 Qb8 Ke6 Qe8+ Re7 Rf3 Qg3 Rf7 Qg2
1R2n3/5krB/2Rb1P2/1qRQ3N/1BpR1n2/2rqbN2/1q1Qn1R1/q1qb3K b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ra6 c3 g4 h5 d4 c5 b4 e5 f4 h3 Kf2 c2 g5 h2 Kg2 c4 b6 e3 b7 e4 d5 e2 f5 e1B d6 h4 b5 e3 g6 h3+ Kf3 e2 b6 Bd2 g7 e1N+ Kg3 Ng2 Ra1 a5 Ra4 Nf4 Bd3 Rh7 d7+ Kf7 Kf2 Nf6 g8R Nc6 b8Q Ne8 f6 Nd4 b7 Bc5 Rg6 Rg7 Qe5 Bdb4 Ra3 a4 Bd2 c1Q b8R Qb6 d8R Qb2 Qe4 Bg4 Nc3 Qb5 Nce2 Ra7 Ra2 a3 Ng3 Bh5 Ra1 a2 Qa8 Be2 Nf3 Re7 Re1 h1Q Nh5 h2 Bb1 Re3 Rg2 Kf8 Rdc8 Kf7 Bh7 Ba3 Rc1 a1Q Qc2 Bb6 Rcd1 Bd6 Bb4 Ba7 Rd2 Qd1 Qae4 Rc3 Rc6 Bac5 Qf5 Qda1 Qg5 Qf1+ Kg3 h1Q Rd3 Bd1 Qd2 Ba4 Re5 Qfb1 Rd5 Qhc1 Kh2 Bd1 Kh1 Nde2 Rf5 Bf2 Rd4 Qd3 Rfc5 Be3 Qd5+
B1bqQ1R1/Br1q4/nq1P3b/3kbBq1/B3R1N1/q1pB1N2/2Q1rnn1/5K2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 a4 Kd7 e4 Kd6 d4 f5 g4 h5 e5+ Kd5 a5 c5 g6 b5 g5 b3 e6 b4 g7 c3 a6 c2 g6 b2 a7 b3 e7 f3 e8Q f2+ Ke2 c4 Ra2 f4 Qd2 c3 Qe1 f3+ Kd3 h4 Rh2 h3 Be3 c1B Qd7+ Bd6 Be2 f1Q Ra4 f2 Nf3 Rh7 Qc7 Be5 Nbd2 Qg1 Nf1 Ne7 Rg2 Na6 N1h2 f1Q Ng4 h2 g8B+ Rf7 g7 h1N Rc4 Nf5 Bh7 Nh4 g8B Qd7 Bf2 Bh6 Bf5 Qd8 Qc1 b1Q+ Qc2 b2 Qe7 Qa2 Qe8 b1Q Be3 Rb8 a8B+ Rb7 Bgh7 Qfc1 Bd1 Qaa3 Ke2 Nf2 Rb4 Qh2 Kf1 Qh3 Bd3 Qbb3 Bhf5 Re7 Ra4 Qbb6 Rc4 Kd6 d5 Re6 Bd4 Qcg5 Be3 Ree7 Rd4 Kc5 d6 Re6 Re4+ Kd5 Ke2 Re7 Rg1 Ng2 Kf1 Qb5 Ba7 Qbd7 Ne1 Qhe3 Nf3 Qd4 Qb1 Q4b6 Ba4 Bf6 Qc2 Re5 Rb4 Re2 Re4 Be5 Rh1 Bhg7 Rh8 Bh6 Rg8
2Q2q1Q/r1B1b3/1n1p1n2/2Q1bN2/R1B1Q1N1/qk1PrQb1/3b4/3nbKRq b - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 a5 Bg2 axb4 Bf1 h5 c4 hxg4 Ba3 b5 Nc3 b3 Nb1 b4 Bb2 Ba6 Bc1 Bb5 cxb5 Ra6 Nh3 Ra4 Ng1 Ra8 f4 Kf7 h4 Ke6 a4 Kd5 f5 c5 h5 e5 f6 g5 h6 e3 a5 d6 b6 c4 a6 c3 h7 b2 f7 b3 a7 c2 b7 e2 Na3 b1N Bh3 e4 Nf3 b2 Nc4 g3 Bg2 g4 Nd4 Nd7 b8Q Be7 f8Q Ngf6 Nf3 Nb6 Bh3 g2 Qc8 g1Q+ Bf1 g3 Ra2 g2 Qb8 Nc3 Rh3 b1Q Nh4 Qh1 Qg7 g1B Qc8 Qf8 Rg3 Qa1 Ra4 Qa3 Ne5 Bd4 Ng4 Be5 Qg5 Rg8 Bb2 c1B h8Q Rg7 Qc2 Nd1 Rg1 Rh7 Nf5 Rh3 Bc3 Rd3 Nh4 Re3 Bb4 Kd4 Qf4 Kd5 Qf3 Kd4 Q2c5+ Kd3 Bc3 Kc2 Ba5+ Kb3 d3 Bcb2 Bh3 Bg3+ Qf2 Bbe5 Nf5 Rb8 a8Q Rb7 Bg2 Ra7 Qac6 Na8 Bd8 Nb6 Bc7 Rf3 Kd2 e1B+ Ke2 e3 Kf1 Bd2 Qe4 Qhh6 Bh3 e2+ Kg2 e1B Kf1 Re3 Qff3 Qh5 Ngh6 Bb4 Nd4+ Kb2 Be6 Qh1 Bc4 Bbd2 Ndf5 Kc2 Ng4 Kc3 Bb5+ Kb3 Bc4+
1rq2Q1r/nQn1RP2/1qR2k1r/1qp1B2r/2b1Rr2/5B2/2N1bR1b/K2NR3 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 a5 b4 e5 d4 h5 Kd2 e3+ Kc3 a4 Kb2 e4 f5 h3 d5 a3+ Ka2 c3 g5 c2 g6+ Kf6 d6 h4 b6 h2 g7 e2 d7 e1Q b7 e3 b5 h3 b6 e2 Qd5 Na6 b8R Ne7 g8Q Nc6 b7 Qb4 Bf4 c1Q Nc3 e1R Nge2 Bd6 Bg2 Rf1 Nd4 Na7 Nd1 Qb5 Bf3 c5 Rg1 h1B Nc2 h2 Rg2 Nc7 Rf2 Qe8 d8R Be6 Qb3 Bc4 Rd7 Qc8 Re7 Be5 Bg3 Qh6 Rc1 Bd6 Ka1 a2 Re4 Bg2 Qe8 h1R Qf8+ Kg5 f6 Rh5 f7 Kf6 Re7 Rfh1 Bf4 Bgf1 Bh2 Bfe2 Bf4 Qce8 Rc8 Rb8 Re4 Qe6 Re8 Qc8 R8e7 R1h4 Bh2 Rf4 Qb4 Ra8 b8R Qg6 Rb6 Rb8 Rc6 R5h6 Kb2 a1R Bg3 Ra3 Rb1 Rd3 Ka1 Rd5 Qb3 Qbb7 Qb5 Rdh5 Qa6 Qb5 Qb7 Qd8 Nb2 Qf5 Re1 Qfc8 Nd1 Ne6 Nb2 Qdb6 Nd1 Nc7 Rff1 Rg4 Rf2 Kf5 Bh4 Bh2 Bg3 Rgh4 Be5 Rf4 Bd6 Kf6 Be5+
1b1Nn1Q1/1BP3r1/2N4q/1b4B1/1q3qR1/2qnR3/K2prb1Q/BB1Bqk1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 Kc2 h5 Kb3 f5 g5 a5 e3 d5 g6 h3 c5 d3 b6 f3 c6 f4 b5 d2 b7 a4+ Kb2 h2 b6 a3+ Kb3 a2 g7 f2 Bb2 f3 Bb5 f1Q Bc4 f2 Qc2+ Qd3+ Bc3 d1Q Bb5 f1Q Ba6 d4 Nh3 Kf3 e4 h4 e5 Qd6 e6 Nd7 b8B Ra7 b7 Ngf6 g8B Ne5 e7 Qde1 e8B Bd7 Rg1 h1R Nd2+ Ke2 Bg6 Qf4 Ng5 h3 Rg4 h2 Ndf3+ Kf1 Ne6 Ne8 Nd8 Rh4 Rb1 a1B Ka2 Qb4 Bb3 Bd6 Qb2 Rh7 Bd1 Rg7 Qd2 Qdc4+ Rb3 d3 Nd4 Qcc5 Bb2 Qcc3 Bc7 Ra8 b8Q Bc5 Ba5 Ba7 c7 Bb5 Qc8 Bb8 Bb7 Ra6 Qc2 Re6 N4c6 Ree7 Bb6 d2 Be3 Re6 Qc1 Ree7 Bb1 Nd3 Ra3 Re4 Qe6 Re5 Qg8 Re6 Bg1 Re2 Be3 Qcf6 Be5 Bd4 Rb3 Bda7 Ba1 Q6d4 Qc5 Qdc3 Qh5 Bc5 Bf2 Bd4 Bh4 Bf2 Bg5 Rg1 Ra3 h1Q Qh4 Qhh2 Qg3 Qh6 Qh2 Rh1 Ra5 Ba4 Re5 Bb5 Re3
1Rnk1B1K/1qr3rQ/B1R1bN2/1r4Nr/1n3Npr/1NNr4/3b2P1/1n3Q1r b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 axb5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kd2 h5 Kd3 a5 Ke4 f5+ Ke5 g5 e4 d5 c4 h4 b4 a4 b6 h3 b5 f3+ Bf4 a3 b7 g4 b6 a2 c5 d3 c6 f2 c7 d2 Bc4 f1R Qe2 d1N Bb3 d4 Qf2 d3 Ne2 d2 Bc4 Bb4 Nbc3 Ne7 Kf6 Ra5 Kg7 Rb5 e5 Be6 c8N Na6 b8Q Rh4 b7 Kd8 Bh6 f4 Kh8 f3 Rc1 a1R Nf4 Raa5 Nd6+ Nc8 Nde4 Rg1 Qfa7 f2 Ng5 f1R Qf2 Qg3 Qba7 h2 b8N Qf3 Nd7 Qb7 Nc5 Re1 Rb1 Re3 Nb3 Rd3 Rc1 Rd7 Qe1 Rg7 Qef2 Re1 Qf1 Re4 Rg1 h1R Be2 Rc4 Bd3 Bf5 e6 Rcc7 e7+ Kd7 e8N Be6 Ngh3 Kd8 Nf6 Rbh5 Be2 Rab5 Ng5 Ba5 Rc2 Nb4 Bd3 Nb2 Be2 d1R Bc4 Rd3 Rc1 Rb6 Ba6 Nc4 Rb1 Rb5 Rb2 Qb8 Qb7 Qa8 Qe4 Na3 Qh7 Nb1 Rc2 Rge7 Bf8 Red7 Nce4 Rf7 Rc6 Rg7 Nc3 Qb8 Qf2 Qa7 Re1 Qb7 Qf1 Bb6 Re5 Be3 Rec5 Bc1 Rb6 Bd2 Rcc6 Qa7 Rb8 Qa8 Bc5 Qb7 Bf8
1N2QqnK/5rnR/R1npb1Q1/3BNbR1/1n1P4/Bn5n/R3b1n1/1r1R1k2 b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Nf3 b5 Bb2 b3 Ng1 b4 Bc1 b2 Na3 b3 Nb1 Bb4 cxb4 Qf6 Nc3 Qg5 Nb1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 a4 Kg3 e4 Kf2 g4 f5 d4 c5 g5 h5 a5 d6+ Kd5 h3 a6 c4 b5 h4 a7 h2 e5 c3 e6 f3 e7 c2 e8Q h3 g6 f4 g7 Be6+ Ke4 Nc6 b6 Rb8 a8R Rh7 Qd7 Qf8 Na3 b1B b7 b2 Bd2 c1N+ Nc2 Na2 Qe7 Nab4 Bc4 Kg2 Qe2+ f2 R8a6 f3 Qd3 f1N R1a2 f2 Bd5 Ne3 Bc1 f1B Qe8 Be2 Nf3 Kf2 Ne5 Ng2 Rd1 h1N Nc4 h2 Ne5 Bf7 Kf5 Be6+ Kg6 Ng3 Qe4 h1N Qg4 Nf5 Qg5 Ngh6 g8R Rf7 Qg4 Ng7 Kh7 Bf5+ Kh8 Be6 Ne1 Bg6 Nd7 b1N Nf3 Nd2 Ba3 Nb3 Nfe5 Bd3 Qg6 Bdf5 Rd3 Kf1 Rdd2 Ra8 b8R Nf2 Rb7 Nh3 Nb8 Ra7 Rc7 Rb7 Rd1+ Kf2 Qc8 Ra7 Qf6 Nh5 Rc2 N5f4 Qe8 Nh5 Rb6 Ra6 Re7 Rg7 Bb2 Ra1 Ba3 Rb1 Ra7 Rb7 Ra2 Rg7 Rba6 Rb7 Rd3 Kf1 Qff7 Rb5 Re7 Rb7 Qf6 Ra7 Rh7 Rf7 Qg5 Qe7 Rg6 Ng7 Qh5 Ng8 Rg5 Qf8 Qg6 Bh5 Rdd2 Be2 Rd1+
b2q1R2/bB1n1n1N/2BB1p2/2q4R/rk2QP2/1b1QN1K1/n2r2Br/rqB5 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 g4 Kd7 f4 Kd6 Kf2 Kc5 c4 h5 d3 e5 b6 a5 b7 b3 g5 h3 g6 b2 g7 h2 d4+ Kb4 c5 f6 d5 h4 c6 h3 c7 a4 d6 a3 d7 e3+ Kf3 a2 Qd3 e4+ Kg4 e2 Qd1 e1N Na3 b1Q Be3 Nd3 Ba7 e3 Bg2 e2 Nf3 e1R Qe2 Nh6+ Kg3 Nf7 g8B Bc5 Ng5 Nc1 Nh7 Rd1 Nc4 Rd2 Ne3 Bd4 Bb6 Ra4 Qd3 Qc2 Qe4 Qc5 Ba7 Ka5 Rb1 a1R Rb2 Na2 Rc2 Qde7 d8Q Nd7 b8B Kb4 Bb6 Bb7 c8B Bd5 Bb7 Bb3 Bd6 Qf8 Qd3 Qe8 Qe7 Qf8 Qee4 Qd8 Rd1 h1Q Rb1 Ng5 Bgd5 h2 Bdc6 Nf7 Rbb2 Qb1 Rc4+ Ka3 Rb4 h1B Rb5 Qb4 Ba5 Ba7 Rh5 Qc5 Bc3 Re8 Bd4 Kb4 Rc2 Re5 Rc1 Rd5 Bb2+ Rd4 Rg1 Rf2 Bc1 Re2 Bf1 Rh2 Bg2 Rc4 Bh3 Nb8 Qe5 Ng5 Bb5 Nc6 Ba8 Nc3 Kh4 Nf7 Rg8 Nb8 Kg3 Na2 Rf8 Rcc2 Be8 Bb7 Bg2 Rd2 Bb5 Nd7 Ba6 Bc8 Bac6 Bb7 Qe7 Ba8 Bab7 Bc2 Qe8 Bb3 Qee4+
1Kn2qR1/RNR1b2P/8/Q1rqbbR1/2n4r/b1rB1pR1/Nq2QB2/2k3n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 c5 a5 h5 g3+ Kf3 g4+ Kg2 a4 b5 d3 b7 Kd4 c6 d2 h6 Ke3 b6 d4 c7 a3 e5 d3 e6 a2 e7 Ra5 e8R+ Be7 Rh2 Nc6 b8Q Qd5+ Nf3 Rc5 b7 Ne5 Qa8 Nc4 b8R Qd4 Rb6 Qb2 Ng5 Bd7 c8R f3+ Kh1 f4 h7 f2 Rc7 Bf5 Rh5 g2+ Kh2 g1N Ne6 f3 Be2 f1R Kg3 Rf2 Nd8 Rh2 Nc3 Rh4 Rb1 a1B Rg6 Nh6 Qf1 Nf7 Rhg5 Nfd6 Na2 Nc8 Nb4 Rf8 Qa5 Rf6 Reg8 Rfc6 Ra7 Rc7 Bd1 R7c6 Bc2 Rc7 Qh3 Ke2 Kf4 d1Q R6g7 d2 Nb7 g3+ Qg4 g2 Bd3+ Ke1 R7g6 Qe2 R6g7 d1Q Be3 R7c6 Bf2+ Kd2 Rc1 Qe6 R7g6 Qef6 R6g7 Qf8 Rc3 Ne3 Rc1 Rc3 Ke5 Nc4+ Kd5 Rc7 Qe4 Qdb3 Rf1 Qd1 Qe2+ Kc1 Re1 Rd7+ Kc6 Rd5 Kc7 Rc5+ Kb8 Rd5 Qe6 Rc5 Re4 Qdd2 Reg4 Qd1 Bb1 Qd5 Qe5 Nh3 Rg3 g1B Bd3 Bh2 R5g6 Ng1 R3g5 Bf4 Rc6 Bd2 Qe2 Bf4+ Rc7 Be5 Rh5 Qd2 Rgg5 Bb2 Rg3 Ba3 Rhg5 Qb2 Na2+
r2nN2k/1rr2bq1/1PN2N1N/2r3b1/6K1/p1BR2Q1/R3N1Q1/qqnr2rB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 a5 g4 h5 e4 f5 b4 Kf7 c4 Kg7 g5 h3 b6 h2 b5 a4 g6 a3 c5 h4 e5 d3 e6 d4 b7 d2 e7 d3 e8Q h3 b6 Qg5 c6 Be6 c7 Nd7 b8N Be7 c8N Rh7 Qe1 d1R Na6 d2 Bb2+ Ne5+ Ke2 f3+ Kf2 f4 Qe4 Bf7 Be2 Kh8 Qd5 Rc1 Nc3 d1R Qa4 Nh6 Ne4 Rc5 Na7 Qg4 Qad7 Bg5 Nf6 Rdc1 Bd1 Nd3+ Kf1 f2 Nc6 R1c4 Bc3 Nc1 Ne2 Rg7 Rg1 h1Q Nc7 h2 Nce8 Qe4 Qd3 h1R Qg3 Qb1 Kg2 f1R Qd5 Rh7 Bc2 Rd1 Be4 f3+ Kf2 Qd7 Ra2 Qe7 Rg2 Rhg1 Rd2 Qf8 Rd3 Qg7 Rh2 Bh4 Ke3 f2 Bh1 f1Q Qdg2 Qe1 Kf3 Bg5 Nd8 Rc7 Nc6 Qa1 Bd2 Rc5 Bc3 Nf5 Kg4 Nd4 Rd2 Ne6 Ra2 Bf4 Rh5 Bh6 Rd5 Bg5 Rd3 Nd8 Qd6 Qh6 Na5 Rb7 Rc2 Na2 Qdg3 Rc1 Qf4 Bd5 Qfg3 Rhc7 Nc6 Bf7 Rb2 Qd1 Rbd2 Qb3 Rc2 Rcd1 Rb2 Nc1 Ra2 Re5 Nd7 Qbb1 g7+ Kh7 g8N Rc5 Ndf6+ Kh8 Q2f2 Qg6 Nh6 Qg7 Qfg2
bnqQ1nqb/pQ5P/2Qr1B1n/NQ4kn/6B1/3Q4/2Nbr2R/1n3nKR b - - 0 1 illegal: No possible last move, all moves rejected
n3RR2/RK1nN2n/4q1k1/1b1rQbBN/3nB3/1P3qb1/bpbrR2R/2Q5 b - - 0 1 illegal: No proof kernel
nnB1KB2/q4R2/QRrbnB1N/1NBq1Bn1/2Pp4/2r1Q1q1/6bq/2k1n3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 g7 a3 c3 f3 b6 f4 Qe1 Kb3 c4 Kc2 Ne2 a2 Be3 h2 Ng1 d2 Nh3 d1Q Bg2 f2 Bd2 f1N Qe3 f3 Qe1 f2 Qe3 Qf3 Ng5 h3 Bb4 Nf6 g8Q Nfd7+ Ke6 Ra3 e5 Rc3 Qf7 Ng3 Qg6+ Ne4 Bc5 f1Q Nf7 Qg3 Nh6 Bd6 Na3+ Kb2 Rd1 a1N Nb5 Nb3 Rb1+ Kc2 Rg1 h1N Bf3 h2 Kf7 Qfh3 e6 Nf2 e7 h1Q e8B Qc7 Rgf1 Nd3 Bg4 Qh3h2 Bf5 Ne1 Qe6 Rg8 Qf6 Rg6 Qe6 Nf6+ Bd7 Nd5 Rb2+ Kd1 Ke8 Ng5 Rf4 Nc1 Qf6 Ne2 Rf1 Nef4 Rb3 Na6 b8B Qa7 b7 Nfe6 Bc7 Q1g2 b8B Bb7 Bd8 Nb6 Bc8 Na8 Be7 Qgh1 Bf8 Bg2 Bc7 Nb8 Bd8 Rg7 Qg6 Rc7 Bf6 Rc6 Nc7 Bh3 Rb6 Qd5 Nb5 Bg2 Qf7 Rb3 Qb7 Rc3 Qa6 Qh1 Bb1 Rc1 B6g7 Qhh2 Rf7 Rc2 Bf6 Rc3 Qf2 Kc1 Bf5 Be5 Qf3 Bd6 Qe3+
1k5R/1r4Nb/1qN1bRb1/pB6/1B1QPR1R/1rb5/nQ1r1rq1/bK1n1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 d5 c4 Kd7 Kc2 Kc7 c5 f5 c6 d3+ Kb2 g3 h5 g4 h6 d2 h7 d4 e3 f3 Qa4 d1R Be2 f2 Bd2 f1R Bd3 f4 Bc3 f3 Ra2 g2 Ne2 g1B Kc2 f2 Ra3 g3 Rh4 g2 Nd2 Ra7 Nc4 Na6 b6+ Kb8 b5 Rb7 Nf4 Be6 Ra1 Nh6 Nd6 Ng4 Nh5 Bg7 Nf7 Nb4+ Kb2 Qd6 Nd8 Na2 Bb4 Rg8 Rc1 Rd2+ Kb1 Rh8 Bc4 d3 e4 Ba1 Qd1 Ne3 Ng7 Bf5 Qa4 Nd1 Rf4 Rg8 h8R Bh7 Rh4 Re8 Rf8 Bh2 Rf6 g1Q Rhf4 Qg2 c7+ Ka8 Rh4 Bhe5 c8R+ Qb8 Rc7 Bec3 Rcf7 Qa7 Rff4 Kb8 R7f6 Rf8 Bf7 Re1 Be8 f1B Bd7 Re3 Bc6 Re7 b7 Qb6 Bd7 Be2 Be8 Bg4 Bc6 Ka7 b8R Rb7 Be8 Be6 Bd7 Qc7 Rc8 Qb8 b6+ Ka8 Bb5 Rh3 Rc6 Qc7 Rc5 Kb8 Rch5 Qd6 Qb3 Rf3 Qd5 Rff2 Qd4 Rg8 Nf5 Rg3 Ng7 Nb2 R6f5 Re7 b7 Rde2 Rh3 d2 Bd7 d1B Rf6 Bd2 Qc3 Ka7 Qa3 Bhg8 Rh8 Bh7 Qc3 Ba4 Rg1 Nd1 Rhh4 Qd4 Bd6 Rd3 Bc8 Be8 Rf1 Beg6 Bd7 Rg3 Qd3 Bb4 Bc6 Rd2 Qe3 Qc5 Qd4 Ra3 Be8 Bbc3 b8Q+ Ka6 Qb2 Ka7 Rh2 Qb6 Bb4 Rb3 Rhh4 Kb8 Bb5 Rb7 Nc6+
1Rq1b1b1/RRPq2n1/1B2B2K/4NbQ1/r1pqR1bn/N7/qbrR1Q2/3k4 b - - 0 1 illegal: No proof kernel
2n1b1nB/QN3rQn/2r1b3/1R2B1Bq/2k3N1/2b1pqr1/1PB2B1R/Kn3r2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 f4 Ke6 c4 a5 Kc2 d5 h4 g5 c5 e3 b6 g3 b7 g4 h5 a4 h6 d3+ Kc3 a3 c6 a2 c7 e2 h7 e1Q+ Qd2 d4+ Kb3 Kd5 f5 e5 f6 e4 f7 g2 Rh5+ Qg5 Rh6 g3 Rf6 e3 Rc6 Qe2 Rg6 Nc6 b8B Ra6 Nh3 g1N Ba7 g2 Bb8 Bg7 f8B Nf3 Qc3 g1R Bd2 Be6 c8Q Na7 Qb7+ Rc6 Be5 Rg3 Na3 Qh5 Be7 Ng5 Nb5 Nc8 Nf2 Qef3 Be1 d2 Ng4 d1N Rh6 d3 Bf2 d2 Qa7 Bf6 Rc1 a1R Nd6 Bg7 Bd3 Bf6 Qc2 Nc3 Nb7 Nb1 Qc3 d1B+ Bc2 Be2 Rh1 Bb5 Rh2 Bg7 Qb6 Ra7 Qba5 Bf6 Ka2 Bg7 Ka1 Bf6 Qd2+ Kc4 Qd7 Ba4 Bd8 Bb5 Qg7 Ba4 Nc5 Rf7 Nb7 Bb5 Qa7 Ba4 Bd6 Bc3 B8e7 Rb6 Bf4 Be8 Be5 Rc6 Rg6 Nf6 Bd8 Rhf8 h8B Ngh7 Rg5 Ng8 Bdf6 Rd7 Bd8 Rd1 Rf5 Rf7 Bg5 Rc1 Bef6 Rh1 Rb5 Rf1 Be5
q2kr3/nq1Rr1R1/1q1Nn2N/Nn1qQ3/2nb1N2/2Pp4/1Bb3BN/2bQK3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 g4 f5 b4 d5 e4 a5 b6 h5 b7 f3 g5 h3 e5 h4 b5 f2+ Ke2 f4 g6 d3+ Kd2 d4 g7 h2 e6 a4 b6 h3 e7 f3 Bg2 f1N+ Ke1 a3 Qe2 d2+ Kf2 d1N+ Ke1 a2 Qd2 f2+ Ke2 Bf5 Nc3 Nf6 g8N Nfe3 Ba3 Nfd5 Bc1 Nc4 Qg5 Bh6 Nf3 Nc7 Na4 Nc6 b8N Rh7 b7 Na7 Nc3 Qd5 Qd2 Ne6 Rg1 h1Q Bb2 h2 Rc1 a1B Nc6 Kd7 e8N Re7 Nd6 Rae8 Na5 Kd8 Kf1 Bg6 Ne2 Nc3 Qe1 Ncb5 Nf4 Bf5 Ke2 f1Q+ Kd1 Bg5 Nh6 Qf2 Qe2 Qe3 Ke1 Qb3 Qd1 Qb4+ Qd2 Qbc5 Qd1 Qb6 Nc8 Bd3 b8Q Qdb7 Qe5 Bg6 Bf1 Qg2 Nd6 h1Q Nh2 Qgd5 Bh3 Qa8 Bf1 Qdb7 Rg4 Qhd5 Bg2 Bf5 Bc3 Bb2 Rg3 Bf6 Rg7 Ba3 Bb2 Bg6 c3 Bc2 Ra1 d3 Ra2 Bc5 Ra4 Bg5 Rb4 Nd2 Rc4 Bd4 Rc7 Nc4 Ng6 Bge3 Nf4 Bc1 Rd7+
q3r1Qb/1kB3n1/1qR5/1b2Bnb1/Q3R1p1/1BNNPbq1/KB2r3/1n3B1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 g5 c4 d5 Kc2 Kd7 Kb3 Kc7 h4 f5 e3 g3 c5 g2 h5 d3 h6 d2 c6 g4 h7 f3 Ka2 f2 Ne2 g1Q Na3 a4 Qc2 d1N Rh6 d4 Ng3 d3 Qb2 f4 Rh3 f3 Qd4 d2 Bd3 f1B Qe4 f2 Bb2 Nh6 Nb1 a3 Qe7+ Nd7 Rh2 Bb7 Qe8 Be7 Ne2 Qg3 Nc1 Nc5 Nc3 Nf5 Rh6 Bg5 b6+ Kc8 b5 Ne6 c7 Neg7 Qc6 Re8 h8Q Be2 Qc4 f1N Qa4 Nf2 Rc6 d1Q Qg8 Nd2 Rb1 Bf3 Bf1 Ba6 Nd3 Kb7 Ra1 Nh1 c8B+ Kb8 b7 Nb1 Be6 Qb6 Bc4 Qc2 Bd5 Qcg2 Bb3 Ka7 b8B+ Kb7 Bc7 Rad8 Ne1 Rd2 Nd3 Re2 Be5 Qd8 b6 Bb5 Rc4 Qa8 Re4 Q2h2 Bc7 Qh6 Be5 Nd2 Rc1 Nb1 Ka1 a2 Bc7 Kc6 b7 Qhd6 b8B Kb7 Rc2 Qc5 Be5 Qb6 Bbc7 Rd8 Ba3 Re8 Kb2 a1B+ Ka2 Nh4 Nd1 Bd4 Bb2 Nhf5 Nc3 Nh5 Bed6 Bh8 Be5 Nhg7 Nd5 Qba5 Rc6 Qb6 Nc3
BnQ2R1K/NB6/b1B2R2/1rn3P1/5knN/2qb1qrB/1Bp1q2n/1q4bQ b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 Ke6 Ke4 c5 a4 f5+ Kf3 Ke5 g4 b5 e4 h5 d3 b3 g6 b2 a5 h4 a6 c3 g5 c4 a7 h3 g7 h2 Ra3 c2 Ra5 c3 Na3 b1Q Ne2 Qd4 Ng3 Nf6 g8B Rh3 Bb2 c1N Ra6 b4 Nb5 b3 Bd5 Ng4 Rf6 Ba6 Bb7 Bc5 Bg2 c2 Rf1 h1Q Rf2 Qh2 Qh1 Qc3 Rf1 Bg1 Rf2 Rh6 Bh3 Qa2 Rf1 Qa3 Rf8 Rb6 Rf2 Nc6 Rf1 Rc8 a8B Nb8 Na7 Rb5 Rf6 Rc4 Rf8 Ra4 Rf6 Qf8 Rf2 Ra3 Rf1 Kd4 e5 Qd2 e6 Ke5 e7 Qh2 Ba1 b2 e8B b1Q Bec6 Nb3 Bb2 Nc5 Re1+ Kd4 Re8 Qf7 Rf8 Ke5 Nh5 Qd2 Ng7 Qdd1+ Kg2 f3+ Kg3 f4+ Kh4 f2 Nf5 f3 d4+ Kf4 d5 f1B d6 f2 d7 Qe8 d8Q Bd3 Qc8 Qee2 Kh5 f1N Kg6 Nfh2 Kh7 Qf3 Kg8 Qde2 Kg7 Ra4 Kg8 Re4 Kh8 Re3 Kh7 Qfg2 Kg8 Rg3 Kh8 Qgf3 Nh4+
2B2R2/1Qn1n1rq/r2nk2B/3p2Q1/1P3r2/1qq2rbK/1B1BN1N1/1bB3Rn b - - 0 1 illegal: No possible last move, all moves rejected
B1Kb4/rNb2n2/2Q1N1PB/5Rr1/1pQ2Nnk/n1q1nN1b/4rb2/N2qR3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 h5 g4 e5+ Ke3 Kg5 a4 b5 f3 h3 d6 c4 d7 h4 d5 b3 a5 b2 a6 h2 a7 b4 d6 h3 f4+ Kh4 f5 c3 f6 c2 g5 Nc6 g6 Be7 f7 Nd4 f8Q Qc7 d8N Qc3+ Bd3 Nf5+ Kf2 e3+ Kf3 e2 Ke4 e1B Kd5 e4 d7 e3 Ke6 e2 Qe8 Ngh6 Na3 b1N Be4 Ne3 Qd5 Nf7 Nb7 Rh5 Qc4 Bd8 Ra2 Rg5 Nf3+ Kh5 Bd2 c1B Nc2 Na3 Na1 Bf2 Re1 h1N Bd5 h2 Rc2 Rb8 a8N Bc7 Nb6 Ra8 Be4 Ra7 Nd5 Bb2 Rcc1 Kg4 Rf1 e1R Nf4 Re2 Rce1 Bc1 Ke7 Kg3 d8N Bh3 Nde6 Kg4 Ne5+ Kh4 Kd7 Ng2 Nh5 Rf5 Na5 Be3 Kc8 Nf2 Rd1 h1Q Ba8+ Ng4 Qec6 Bd8 Rf4 Bf2 Nb7 Qg1 Rf3 Qh1 Bh6 Rg5 Rf5 Bf4 Rc1 N2e3 Rb1 Qd5 Re1 Bh2 Nd7 Bhc7 Nhf4 Qdd2 Ne5 Qd1 Nf3+
4Nb2/4Rrq1/1bpB1rQ1/1P1Rn1nN/B1nb2q1/5N2/kqN2nb1/4QNK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 d4 Kd5 b4 a5 b6 h5 g5 f5 b5 c3 e3 f3 g6 c6 g7 c2 b7 a4 Ra2 a3 Bb2 c1B Be2 f4 Qa4 h3 Nd2 h2 Ra1 a2 Nb1 h4 Nd2 h3 Qb4 Rh6 Kf1 f2 Bd1 Ra7 Qa4 Nf6 g8N Qc7 Ne2 Nh7 Qa5 Nd7 b8Q Ne5 Nf3 Kc4 e4 Ng5 d5 Be3 d6 Rf6 d7 Bb6 d8N Qg7 Qd6 Raf7 Ng3 Bd7 Rb1 a1B Ba3 Bad4 Qe1 Bg4 Rg1 h1N Ne6 h2 Ba4 Bh5 Kg2 f1N Rd1 Nd2 Nf1 Nf2 Rh1 Kc3 Bc5 Kb2 Bb4 Bdc5 Ned4 Ka2 Nc2 Ndc4 Rd5 Bd4 Qe6 Bg6 Bd6 Bh5 Qf5 Bg4 Qg6 Bd7 Ng3 Bc8 Rg1 h1Q+ Kf1 Qh5 Rg2 Bg4 Kg1 Qh4 Nf1 Bh3 Rh2 Bg2 Rh3 Ned3 e5 Qg4 e6 Nde5 e7 Nh7 Nh4 Ng5 Re3 f3 e8N Nfd3 Kh2 f2 Re2 Rc7 Nf3 Rcf7 N1d2 f1Q Re3 Qe2 Kg1 Rb7 Nf1 Nf2 Re4 Rbf7 Re3 Rf4 Ngf6 Qd2 Nh5 R4f6 Re2 Qc3 Re4 Qb2 Re3 Nd7 Re6 Nde5 Re7
Nn2rb2/Q1q3n1/1p2n3/1N6/Nq3Rk1/2PR2rq/B2KNBnr/r3QN1b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 g4 Bg7 f4 Kf7 a4 Kf6 c3 d5 a5 h5 a6 Ra7 Nh3 e5 Bb5 b3 Qc2 d3 Ra4 b2 Qf2 e4 Be8 d4 Qf1 d2+ Kd1 b6 Bb5 e3 Na3 b1Q Be2 Bb7 Ng1 h3 Bc4 h4 Nb5 Ne7 Nf3 Be4 Nh2 Nec6 Ba2 Re8 Rg1 Qc8 Rg3 Nd8 Qf2 Rc7 Nf1 h2 Ke2 d1N Bd2 h1N Be1 h3 Rb4 h2 Rh3 Ke7 f6+ Kd7 Rc4 Ke6 f5+ Ke5 f7 Ne6 Qh4 Kf4 f8N Qb3 Qh7 Qb4 Bf2 Ng3+ Ke1 h1R g5 Qb7 f6 e2 f7 d3 g6 Ne3 Nd7 Ngf5 Rg3 Qc6 Nc5 Rh2 Na4 Qcd6 f8N Qe5 Kd2 e1R Rd4 Ra1 Rc4 Nd1 Ke1 Rf7 Rf3+ Kg4 Rd4 Qg3 Rd6 d2+ Ke2 Nc5 Ne6 Nde3 Nf4 Bf8 Qg7 Qg2 Qe5 Bb7 g7 Ne6 g8Q+ Nfg7 Rd3 Qh3 Qe4 Rf5 Qf7 Bc6 a7 Bb7 a8N Re5 Rd7 Bd5 Kd3 d1Q+ Nd2 Qg1 Nf1 Qgg3 Kd2 Bc6 Qb1 Re4 Ne2 Rd4+ Kc1 Rd3 Rd4+ Be4 Qa7 Qc7 Rd8 Bb7 Rf6 Bh1 Rf4+ Kg5 Rdd4 Ng2 Rd7 Re3 Rd3 Rg3 Kd2 Kh5 Qe1 Kg5 Rf6 Kg4 Rf4+
q2BQ2b/n2RQ2k/PN3r1b/3R1rQ1/B2n1N2/QQb3p1/6b1/3Knnqr b - - 0 1 illegal: No possible last move, all moves rejected
n1K3Br/4N1P1/N1Rb4/r1RN1N2/NrQ3n1/1QBb2q1/p1bn2q1/2b1kn2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe3 Kg4 f5 e1B f6 a2 f7 h3 Ba3 e4+ Ke2 Qd6 Qb3 d3+ Ke3 d2 Kd4 d1R+ Qd3 e3 Bb2 e2 Bc3 Nf6 Nf3 Nbd7 b8N Bd2 b7 e1N Nh4 Bc1 Nf5 Ra5 Na6 Nb6 b8Q Na8 Qb3 Bb7 Rg1 h1Q c8N h2 Nb6 Qg2 Na4 h1N Be2+ Kh3 g4+ Qdg3 g5 Bd6 f8N Ng4 g6 Rd2 g7 Rb2 Qbc4 Rb4 Ng6 Bc6 Bd1 Bb5 Bb3 Kh2 Qc2 Kh3 Nge7 Nf3+ Kd3 d4 Ke4 d3 Kd5 d2 Ke6 d1B Re1 Rd8 Re5 Rh8 Rc5 Nd2 Rc6 Kh2 Kd7 Kg1 Qb2 Kf2 Qa3 Rh3 Kc8 Ke1 Qf7 Nc7 Bf6 Rh8+ Ng8 Qe3 Nbc3 Bb2 Rc1 Bd3 Bc4 Qf4 Qb3 Na8 Rc2 Bc1 Bd4 Rh7 Nge7 Ng3 Qd5 Rh2 Qb5 Qff3 Bg8 Ngf1 Ncd5 Qfg3 R2c5 B1c2 Bc3 Rh8 Q5c4
r1N1Q2q/1R1p1qQB/rq1P1B1n/2nqR3/2n1rN2/3bB3/2kbn3/B2B3K b - - 0 1 illegal: No possible last move
1qbn2qn/N1P2qQp/k2r3n/1b3B2/1R3BN1/1q4QK/1QQbR1Q1/2r2b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 c4 a5 e4 d5 g4 Kd7 Kg2 Kc7 b4 Kb6 e5 h3+ Kh2 f3 e6 f2 e7 a4 e8Q f4 g5 d3 g6 f3 g7 d2 Qe5 a3 Qc3 d4 Qe1 d1Q Bh6 a2 Bg2 f1Q Na3 d3 Bf4 f2 Qe2 d2 Nf3 Qb3 Rb1 a1Q Qc2 d1B Ne5 Ne7 g8Q Qab2 Qg7 Ra6 Be4 Ng6 Bf5 Nc6 Ng4 Be7 Qee4 Be2 Qg2 Qg8 c5+ Ka7 Re1 Nd8 c6 Qe5 Rb1 Qb8 c7 Rc6 b6+ Ka6 b7 Bg5 Nb5 Rc5 Na7 Bb5 Rb2 Qfc4 Rd1 f1B Rd2 Qcf7 Re2 Rc3 Be5 Bc1 Bf4 Be3 Kg3 h2 Kh3 h1N Rb1 Ng3 Rb2 Qa8 b8Q Bd2 Rb1 Qb7 Qa8 Qb8 Qf3 Nh5 Qg3 Nf6 Qe4 Rc1 Qc2 Qgf8 Rb2 Ng8 Rb1 Nh6 Rb2 Be8 Rb1 Q8g8 b5+ Ka5 b6 Bb5 b7 Ka6 Qf3 Qge8 Qfd3 Rg8 Qf3 Nh8 Qg3 Rf8 Rb2 Qg8 Rb1 Rf6 Rb2 Rd6 Rb1 Qa8 b8Q Qef7 Rb2 Qa4 Rb4 Qab3 Qcb2 Qb7 Qa8 Qb6 Qe4 Qb8 Qec2
K1Rb1nrn/1nbP1bNr/1Qr5/3N3B/1Nkb2Q1/R2N3n/qp1BNr2/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 Kd6 e4 Kc5 a4 g5 a5 f5 d6 b5 h5 f3 Ke3 b3 d3 b4 e5 f2 a6 b2 d7 g3 e6 b3 e7 f4+ Ke4 g2 e8Q g4 h6 f3 h7 g3 a7 Ne7 Qf7 Ng6 Ra3 Be7 Rh3 Qg8 d8N Be6 Rh1 Nd7 Nc3 b1N Bg5 b2 Ra4 Na3 Bd2 Nc4 Nge2 g1B Ra3 g2 Nd5 Na5 d4+ Kc4 Rh5 c5 Nb4 Ndf8 d5 Nb7 Qf6 Bf7 Ne6 Bd8 d6 Rc8 a8N Rc6 d7 Bh2 Rh4 g1N Ng7 Nh3 Bg2 f1R Nc7 f2 Bf3 Rh1 Ncd5 f1R Bh5 Rf2 Qg1 Bhc7 Qg4 Kb5 Qd4 c4 Qa7 c3 Qa6+ Kc5 Qb6+ Kd6 Kd4 c2 Ke4 c1B Kd4 Nhf4 Rhh3 Rg1 Rhc3 Nh3 Rc5 Rh1 Kc4 Rg1 Kb5 Rg3 Ka6 Rgg2 Be1 Be3 Ka7 Bd4 Ka8 Rg1 Rcc3 Rg3 Bd2 Rgg2 Re3 Rg3 Re8 Rgg2 Qa6 Kc5 Qa5+ Kc4 Qb6 Be7 Rb8 Bed8 Rc8 Be6 Qf5 Ng5 Ndc3 Nh3 Ne8 Qf7 Qf3 Qf5 Ncd5 Bf7 Qf4 Rg5 Qg4 Rg8 h8N Qb1 Ne7 Qa2 Ned5 Be6 Nf7 Nh8 Ka7 R5g7 Ka8 Rh7 Ng7 Rc5 Ra6 Rc6 Ne5+ Kb3 Ra5 Bf7 Ned3 Kc4 Ra3
2RQn3/2nn3q/Bb1k4/N2qn1Qq/2rrr3/1r4p1/1r3BPQ/QN1Q2RK b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 h3 g5 Bd2 g4 Rh2 g3 Be3 b6 Rh1 Bb7 Bd2 Bf3 Bc1 Bg4 hxg4 Be7 Bd2 Bd6 Bc1 Bf8 e4 Ke7 a4 d5 c4 h5 c5 f5 a5 h4 e5 d3 a6 b5 e6 d4 c6 h3 c7 f3 c8Q b3 a7 b2 g5 h2 g6 b4 g7 f2+ Kd2 f4 Qdc2 b3 Ra5 f3 Ra1 Qd5 Ra6 Nf6 g8Q Nbd7 Q8c6 Re8 a8Q Rh4 Kd1 d2 Na3 b1R Qg4 b2 Bd3 f1N Bh7 f2 Ke2 d1R Be4 Nd2 Nc4 Nf3 Be3 f1R Bf2 d3+ Ke3 d2 Bd3 Rfe1+ Ne2 Rb8 Qg5 Nfe5 Ra3 Rb5 Rc3 Rb3 Qa1 Rg4 Rf1 h1Q Na5 Qh7 Ba6 Rdc1 Rh1 d1Q Qc4 Rh4 Qc7 Rd4 Qd8+ Kd6 Qd3 Be7 Rc8 Rcc4 Ra8 Kc5 Rc8+ Kb4 Rf1 Bc5 Rh1 Ba7 Rf1 Bb6 Rh1 Rf1 Nc3 Qdh5 Qc2 Rfd1 Rf1 Rg4+ Ke2 Rdd4 Re1 Rge4+ Kf1 Rg4 Kg1 Rge4 Ra8 Kc5 Rc8+ Kd6 Rf1 Rc1 Qcd2 b1N Qd1 Na3 Nb1 Nb5 Re1 Q7f7 Rf1 Nc7 Re1 Qe2 Kh1 R1c2 Rg1 Rcb2 Qh8 Qg6 Qh2 Qeh5 e7 Qgf7 e8Q Qfh7 Qd8 Nfe8 Qa4 Rc5 Qa2 Rcc4 Qa1
3R2q1/rQK2b1n/2RN1kp1/Qb1rNrP1/2Qq1B1b/1Qr2B2/5bQ1/5qq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 d4 fxe4 h5 c5 Be2 cxd4 Ba6 Nc6 Bf1 Ne5 Kd2 Ng6 Ke1 Nh4 h6 g6 Ba6 Nf5 Bf1 Ng7 hxg7 Ra3 Qd2 Ra5 Qd1 Ra8 Kd2 Kf7 a4 d5 c4 h5 f4 e5 g4 b5 f5 b3 c5 h4 f6 h3 c6 d3 Kc3 h2 c7 b2 a5 e3 a6 b4+ Kb3 d4 Kc4 b3 Kb5 e2 Kc6 e1R a7 e4 Nh3 d2 Rg1 h1Q Bb5 d3 Na3 b1B Kb6 e3 Bc6 b2 Rg3 e2 Re3 Rf1 Qe1 d1R Qa5 e1B Re8 d2 Bf3 Bd7 Nb5 Ba2 Ng1 Be7 Nd6+ Ke6 f7 Bf2+ Kb7 Bb5 f8Q b1Q Qf4 Rh3 Qc4+ Kf6 c8Q Qb4 Qb3 Qd4 Rb1 Rg3 Rb2 Qh2 Rc2 Qh3 Rc6 Qh2 Be4 Rc3 Nf3 Qg1 Qc4 Bb3 Ne5 Ba2 Bf3 Bb3 Qc5 Bf7 Qc4 Kg5 Qca4 Bg3 Qb3 Qf4 Qaa3 Qf2 Be2 Qg1 Nec4 Nf6 Rf8 Qe8 Kc7 Nh7 Qb7 Qfe3 Qab4 Rf5 Bf3 Qd3 Q4a4 Qdf1 Qaa6 Be1 Qab6 Bf6 Qf2 Bd4 Qg2 Bh4 Rh8 Bdf2 g8Q Kf6 Ne5 Bfc4 Qd5 Qe6 Rd8 Qg8 Qd4 Bf7 Qda4 Re1 Qd4 d1Q Bf4 Re4 Qdc4 Rd4 Be4 Rd5 Bf3 Rb8 a8Q Qd4 Qaa3 Ra8 Qa5 Ra7 g5+
bn6/q2Rb2q/1Bkbr2P/1p1r1N1N/nNrn1R1q/1N5N/1pBQ4/1K4Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 g5 Kc2 f5 e4 b5 h4 c5 a4 c4 d6 g3 e5 f3 a5 b3+ Kb2 g2 h5 c3+ Ka3 f2 d5 g4 a6 c2 Kb2 f4 h6 g3 a7 f3 Be3 c1R Rh4 Rc4 Bb6 Be7 Qd2 Nf6 Rf4 Re8 Bd3 f1N Bc2 f2 Nh3 g1B Ra4 Bb7 e6+ Kc8 Ra3 g2 Ra4 Bc6 d7+ Kb7 d6 Ne3 Ka1 Qc7 d8Q f1Q d7 Bd6 e7 Ne4 Qc1 Qe1 Nd2 b2+ Kb1 Bh2 Nb3 Qh4 Qg1 Nc5 Rf7 Nf5 Rh7 Rh8 e8N Nd4 Ng7 Re8 Nh5 Re6 Qg5 Bhg3 Qd2 Be7 Rf7 Bgd6 d8N+ Kc8 Rf4 Kd7 Nf7 Be4 Ra6 Kc6 Ra1 Na4 Ra3 Bc5 Nd6 Qb7 Nf5 Bcd6 Nc5 Bf3 Rd3 Qd7 Nb3 Qc7 Qgd1 g1Q Q1e1 Qg8 Qg1 Qh7 Qgh2 Nd7 Qg1 Rd8 a8N Qa7 Nc7 Nb8 Na6 Ba3 Qgf2 Rd5 Qg1 Bad6 Nb4+ Kb7 Qg4 Rdc5 Nd5 Bc7 Nhg3 Ne2 Nf6 Bg2 Rd6 Nd4 Ngh5 Be4 Rd8 Bcd6 Nd5 Bf3 Nb4 Bc6 Qgg2 Rd5 Bc5 Kc7 Qg1 Ba8 Bb6+ Kb7 Na2 Kc6 Rd7 Qc7 Qh1 Qb7 Qg1 Qa7 Nb4+
1K2B1N1/3QRr2/pR1rq3/n1nQ2b1/2nq1P2/p1Q5/1Brb1Q2/k1qbQN2 b - - 0 1 illegal: No possible last move
1n2Nn2/2Bqr3/rnk5/3N1P1Q/BBBr1bp1/4Q2b/2B1pKn1/1nRb3R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 b5 c4 g5 a4 d5 f4 Kd7 a5 e5 f6 d3 a6 b3 h5 d2+ Kf2 g3+ Ke3 e4 a7 b4 h6 g2 h7 d4+ Kf2 d3 c5 e3+ Kg3 b2 f7 b3 Qf3 d1R Nd2 b1N Nc4 b2 Nh3 g1N Nd6 d2 Bc4 e2 Kf2 Ne7 Qe3 Ng6 Ne8 Bh6 f8B Kc6 Be7 Rf8 h8Q Na3 Qh7 Bg4 f5 b1N Nf4 Rf7 Nd5 Nf8 Qg6+ Qd6 Qh5 Nf3 Bb2 Qe6 Be5 Ne1 Bc7 Bh3 Bed6 g4 Bb3 Kb5 c6 Nc4 Bb4 Qd7 Bc2 Re7 Bb3 Nc3 Rc1 Nb6 Bc2 Bf4 Bb3 Na6 Bc2 Ng2 Bb3 Rd8 a8B Nb8 Bb7 Re1 Bc2 d1B Bc8 Qd6 Be6 Qd7 Ndf6 Rf7 Beb3 Qe7 Rb1 Rd4 Bcd6 Qd7 c7 Re7 c8B Kc6 Bc7 Rg1 Nd5 Re1 Bd3 Bc2 Bca6 Rc1 Bac4 Bd1 Ra1 Rc2 Be4 Ra2 Rc1 Ra6 Bec2 Nb1 Ba4+
1Q1n1R2/1nr2b1b/b2q3k/Qrn2p2/3B1r1r/2p2PrB/1NK1R1Q1/N2Q1Q2 b - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 h4 gxh4 e3 Bg7 d5 Bd4 exd4 a5 Qd2 axb4 Qc2 Qd6 Qd1 Qd8 Kd2 Kf8 g4 Kg7 a4 b5 d6 h5 d7 c5 a5 e5 g5 e4 g6 h3 a6 c3+ Kc2 c4 a7 h4 d5 h2 d6 h3 Na3 b3+ Kb1 b2 Bg2 c2+ Ka2 b1B+ Kb2 b4 Qe1 e3 Bf3 e2 Bf4 c1R Qd1 e1N Bd2 b3 Be2 Ne7 Ba5 Kh6 g7 Nf5 g8Q Ba6 Bg4 Nc6 Nc2 Nd3+ Kc3 b2 f3 Ba2 Ne2 b1B Bb6 Rb8 a8Q Nc5 Re1 h1R Nf4 h2 Nd3 Rg1 Bh3 h1R Re2 Rg3 Nb2 f6 Ba7 Rb5 Qf1 Qb8 Qg4 Rf8 d8Q Qb6 d7 Nd6 Kd2 Ndb7 Qdb8 Ncd8 Qg8 Bb3 Ra3 B3a2 Na1 Bh7 Rae3 Rf7 Re8 f5 Rf8 Qd6+ Nd3 Rcb1 Kc2 R1b4 Nb2 c3 Bb6 Rf4 Qg4 Nce6 Bd4 Nec5 Qaa7 Rg7 Qb6 Re7 Qa5 Bf7 Qg8 Nc6 d8Q Rc7 Bg2 Rhh4 Bh3 Rg1 Qd7 Ncd8 Qg3 Rg2 Qgf2 Rg3 Q2g2 Qc6 Bg1 Qg6 Qdd1 Qd6 Bd4
8/3K2pb/1kNn1BQ1/B4n2/nb3nBr/Bpr1P2q/1n2NbQR/2Br2R1 b - - 0 1 illegal: No possible last move
1rk1n3/4pq2/Q4RrB/Nn1B1bR1/KPN1B3/pB6/rb1bBrQ1/4n1r1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 a5 b4 d5 f4 Kd7 g4 h5 c4 d3 Kc3 h4 f5 e3 g6 a3 Kb3 a2 c5 d2 f6 d4 g5 e2 f7 e1N g7 h3 g6 h2 Nf3 d3 Qe2 d1R Bh6 d2 Ka4 Qe8 Na3 Nc6 Qa6 Nf6 g8B Nd4 g7 Nb5 Rg1 h1R Be2 Rh2 Rg5 Rf2 c6+ Kd8 Nc4 Bf5 Rc1 a1B Nd4 Bb2 Nb3 Rb8 Bh7 Rg8 c7+ Kd7 c8B+ Kc7 Rc2 Ra1+ Na3+ Kd8 Be6 d1R Rc6 Ra2 Bd5 Rb1 Nc5 Rc1 Nb7+ Kd7 Re6 Kc8 Bg6 Qd8 Bb3 Ne8 Rf6 Qd5 Bh7 Rc4 Bg6 Rg4 Bh7 Rg1 Bg6 Rh8 g8B Bg7 f8Q Qf7 Bd5 Rh7 Bb3 Bh8 Bd5 Rg7 B6h7 Rg6 Qg7 Bc1 Bb3 Qc4 Bd5 Bd2 Be4 Qf7 Bg8 Qf8 Bgd5 Qg8 Rd6 Qf7 Qb2 Bg7 Rf6 Bh8 Qe5 Bg7 Qh2 Bh8 Qg2 Bg7 Rb6 Bb2 Rf6 Na7 Qh1 Nc6 Kb5 a4 Nc4 a3 Qg2 Na7+ Ka4 Nb5 Nba5+
1N2k1qn/Q4N1N/2n3rp/1pr4q/b1B1R2b/BN3N2/K1P3R1/n2nQn1b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 d5 f4 e5 a4 b3 g4 d3 Kc3 e4 Kb2 h6 f6 d2 a5 h3 a6 d4 g5 e3 f5 d3 a7 e2 g6 e1Q g7 h2 Ra3 Be7 Be2 Bd7 Nf3 Qh4 Qe1 Ba4 Rg1 h1B Rg2 d1N+ Ka1 b5 Nbd2 b2+ Ka2 b1N Nb3 d2 Bc4 Nc6 f7+ Kd7 f8N+ Ke8 f6 Qh5 Ng6 Ne3 Bb2 d1N Nge5 Nf1 Nf7 Rc8 a8Q Nbd2 Qa7 Qdd5 Bc1 Qe6 Bb2 Bd8 Bc1 Nge7 g8N Ng6 Ne7 Rg8 Bb2 Nh8 Bc1 Nd4 Nc6 Rg6 Nb8 Rc6 N7e5 Rc5 f7+ Kf8 Bb2 Nc6 Bc1 Bh4 Bb2 Kg7 f8N+ Kf6 Bc1 Qg8 Nf7 Kg7 Nbd4 Kf6 Re3 Nb3 Re4 Na1 Ba3 Kg7 Nb3 Kf6 Nh7+ Kg7 Nhg5 Kf8 N3e5 Ke8 Nh7 Qf5 Nf3+ Qe5 Be6 Qh5 Bc4+
Qqb1R2b/3pnnr1/R7/k2bQ2B/3b3p/r1NN1NN1/2P3br/1qBK2N1 b - - 0 1 illegal: No possible last move, all moves rejected
2n2Q2/1Pp2b1N/K1QR1b2/R4q1k/N3p1Bq/3r1QB1/bq3r2/1QbnQb2 b - - 0 1 illegal: No possible last move, all moves rejected
1N3bn1/1p2Bn1N/2B2p2/1KQR1b2/1nP2k2/Nnr1n1r1/b1qq1Q2/1R3NN1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 e4+ Kg5 h4+ Kf6 a4 Ke5 a5 g5 a6 d5+ Kb5 f6 c4 g4 a7 f3 h6 b3 h7 b2 h5 f2 h6 d3 Qf3 d4 Rh5+ Bf5 Na3 b1B Bg2 f1N Qf2 Ba2 Rb1 g3 Be3 Ke6 e5 d2 Bc6 d3 Bc5 d1Q Be7 Na6 Qc5 Rb8 a8N d2 Nb6 g2 Nd5 Nb4 Ne3 Qc2 Rg5 d1N Rh5 Ng3 Nf1 Ne4 Qf2 Nd2 Qc5 Kf7 e6+ Kg6 Qf2 Nb3 Qc5 Be4 Rd5 Ne3 Nf3 g1N Re5 Ng4 Bd5 Na1 Bd6 Nh3 e7 Bg7 e8N Ne7 Bc6 Ng5 Nc7 Bf5 Ng1 Nb3 Na6 Rc8 Nb8 Nf7 Be8 Rg8 h8N+ Kg5 Bc6 Qd7 h7 Rcd8 Ng6 Ne3 Nf8 Kf4 h8Q Bh6 Rb2 Rg3 Rb1 Ng8 Be7 Qdd2 Qh7 Bg7 Qh2 Rd3 Rd5 Rc3 Nh7 Bf8 Qf2+
R1bBn1nK/p1QN1r2/b1pQ3Q/1Qrn3q/B1rk4/n2Q3N/n1P5/2q1R3 b - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 f5 Ke2 b5 Ke1 bxa4 h4 g5 Bd3 Bh6 Bc4 fxg4 Be2 g3 Ba6 g4 Bf1 Bg5 hxg5 Ba6 Bg2 Bb7 Bf1 Bc8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 d4 e5+ Ke3 h5 b4 a3 f4 g2 g6 g3 g7 h4 b5 h3 f5 a2 f6 h2 f7 Rh4 f8Q Nd7 b6 Ndf6 b7 Ne8 b8Q Qg5+ Qf4 Qh5 Nf3 g1Q+ Ke2 e3 Kd3 g2 Qb2 e2 Ng5 e1R Nh3 e4+ Kc3 c6 Na3 e3 Qh6 e2 Bg5 Qe3+ Qd3 g1N Qb1 Nf3 Bd8 Qc1 Nc4 Nd2 Ne5 Nc4 Nd7 Na3 Qb6 Rb8 Qc7 Rb7 Qb5+ Ke4 d5 Rg4 Rg1 h1B d6 Bg2 Rb1 a1N Rb2 Ne7 g8Q Nb3 Qgf8 Ng8 Rb1 Rd1 Qff6 e1N Bc4 Na5 Bb3 Rd5 Ba4 N5c4 Rb3 Nd3 Re1+ Ne3 Qf1 Nb4 Qfd3+ Kf3 Rb1 Rf4 Rb2 Rf7 Rb1 Rc5+ Kd4 Na2 Rb4 Qg6 Rb3 Rc4+ Ke5 Bf1 Rb4 Qg4 Rb1 Rf5+ Ke6 Rfc5+ Kf7 Qh4 Kg6 Qg5+ Kh7 Qh5 Kh8 Be2 Nb8 Bf1 d7 Be2 Qdd6 Ke4 Rb3 Nd5 Rf3 Qg6 Rf8 Qf7 Bg5 Qg6 d8Q Qh5 Q8d7 Kd4 Bd8 Bd3 Qdh7 Be2 Nd7 Rb4 Qbb6 Ba6 Qb5 Rbc4 Be7 Ngf6 Qca5 Ng8 Nb6 Nef6 Qf5 Bd7 Ra8 Bc8 Bd8 Rg7 Nd7 Rf7 Qac7 Ne8 Qd3#
BQbB1R1B/1r2k1qq/qB5r/n2bB3/p1p5/P1Nb1Rn1/1K1Q1r1b/7N b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 b5 d3 bxc4 Be3 cxd3 Bh6 Nc6 Bc1 Nb8 Kd2 h5 Kc3 a5 f4 e5 b4 d5 g4 c5 f6 d4+ Kb2 a4 f7+ Ke7 a3 h3 f5 h4 b5 h2 g5 c4 b6 e4 g6 e3 g7 d2 b7 d3 Ne2 h3 Qb3 d1Q Nd4 d2 Qa2 e2 Nc3 e1R Bg2 Nc6 b8B Nf6 g8Q Rh6 Rf1 h1B Bc7 h2 Nde2 Ra7 Rf3 Qd4 Ng3 Rf1 Qh8 Ne4 f6+ Kd7 Rb1 Bd6 f8B Rf2 f7 Na5 Bg7 Ke7 Be5 Rb7+ Bb6 Bb8 Bc7 Qg7 f8B+ Kd7 Bfd6 Qb3+ Ka1 d1B Be5 Ke7 Qd2 Bc2 Bb2 Bd3 Rf1 Qb5 Rf8 Qa6 Bf3 Bg2 Nh1 Ng3 Bd5 Ra7 Ba8 Rb7 Ka2 Bf3 Ba1 Bd5 Kb2 Rf5 Rf3 Rf4 Nf2 h1Q Qg8 Qh5 Nh1 Qhg6 Qh8 Q6h7 Bd4 Re4 Re8+ Kd7 Kc1 Qf8 Bd6 Nf5 Nb1 Re2 Qe5 Qfh8 Rf8 Qg6 Qg3 Qhh7 Bh8 Reh2 Bac3 Bc7 Kb2 Rf2 Bcd4 Qgg7 Nc3 Bd8 Bb8 Bh4 Qe5 Bg3 Qf4 Ke6 Qc7 Bh2 Be5 Ng3 Qd8 Bd7 Qc8 Ke7 Bbc7 Bh3 Qb8 Bc8 Bd8+
5b2/n1BQ4/n1q2Bbr/2n1PB1B/R5p1/2p3Kb/1rkQqRB1/1NrNr3 b - - 0 1 illegal: No possible last move
2Q1Q2N/1B2q2R/4kr1n/P1n1b1B1/1pprb2Q/nQb3Q1/5n1K/r2qNR2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 g5 h4 c5 e4 f5 d4 b5 a4 c4 d6 f3+ Kh2 f4 h5 b3 d5 f2 e5 f3 h6 g3+ Kh3 b4 h7 g2 Qc2 b2 Bd3 f1R Ne2 g1B Be4 f2 Nf4 Bh2 Ng6 Nh6 Nd2 b1N Qb3 Bg7 Nf3 Na6 Ne1 Nc5 a5 g4+ Kg2 g3 Bg5 Rf8 h8Q Qe7 Qg8 Na3 Nh8 Bb7 Rb1 Rad8 e6+ Ke8 Ra1 Bc3 Qg6+ Rf7 d7+ Kf8 d6 Rf6 Kh3 g2 Rd1 Ba8 Bb7 Bhe5 Qd3 Kg7 Qg3 g1N+ Kh2 Nh3 Rb1 Rg1 Ra1 f1Q Rb1 Rdf8 d8Q Nf2 Qc8 Rd8 d7 Qd3 Rc1 Qd1 Ra1 Re8 d8Q Kg8 Qd4 Rd8 Qh4 Kg7 Ba6 Be4 Bb7 Rd4 Rb1 Qe8 e7 Qd7 Ng6 Kf7 Nh8+ Ke6 Rc1 Qh5 Rd1 Qf7 e8Q+ Qe7 Rd3 Rf1 Rf3 Rg1 Nd3 Ra1 Ne1 Rg6 Rf7 Rf6 Rh7 Rd2 Qb8 Qd3 Rg1 Qb1 Qc7 Qd1 Rf1 Rd4 Qcc8+
r1N2B1n/n1qn3Q/1k2K1bp/8/R1r5/1qnp1qPB/1R1bBN2/QrB2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 a5 Kc4 d5+ Kd3 Kd7 e4 Kc7 b4 f3 c4 h3 c5 a4 e5 h2 g3 a3 c6 f4 e6 h6 e7 f2 e8B a2 Qc2 f3 Bh5 Nd7 Ba3 Kb6 c7 Ne7 Bg4 Ng6 Nh3 Ra4 Rg1 h1R Bc1 Rg8 Qb2 Nh8 Nd2 Qe7 Rb1 a1N Ne4 Nb3 Qa1 Na5 Nd6 Nc6 Rb2 Na7 Rg2 Bb7 c8B Qd8 Bh5 Qc7 Ra2 Rg4 Rh2 Ra5 Ra4 Be7 Rg2 Bg5 Rh2 Rh4 Bg4 Ba8 Ba6 Bc6 Be2 f1Q Nf2 Bd2 Bh3 Qd1 Rg2 Nf6 Rh2 Be8 Rg2 Qd8 Rh2 Nd7 Nc8+ Kc7 b6+ Kc6 b7 Qc7 b8B Bg6+ Ne4 f2 Bc4 f1Q b5+ Kb7 b6 Kc6 b7 Qf5 Bef1 Qb3+ Ke2 Qf8 Nf2 Qfa3 Ba6 d3+ Kf3 Rc4 Be2 d4 Kg4 Bf4 Rg2 d2 Bf1 d1N Rh2 Rb4 Bae2 Bd2 Rg2 Nc3 Rh2 Qe5 Bd6 Rc4 Bf8 Qc7 b8Q Ra6 Qa8+ Kb5 Qe4 d3 Ne7 Kb6 Rg2 Qad6 Rh2 Qdc6 Rg2 Bh5+ Kf5 Qa8 Ke6 Bg6 Qf5 Qf3 Qf7 Nab5 Qh7 Ra8 Rh2 Na7 Nc8+ Kb5 Bfg2 Qb4 Nd1 Bf4 Bd2 Re1 Rh1 Be3 Nf2 Qb3 Rg1 Rc1 Rd1 Bg5 Bgf1 Rb1 Bc1 Kc6 Rd2 Kb7 Rda2 Bd2 Rb2 Kc6 Nd6 Kb6 Nc8+
QB1qr3/bnRQ1n1B/K3bp2/b2qP2B/B1p1N3/2q4N/r2B2k1/4rRr1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 a4 Kd7 d4 Ke6 Kd2 Kf5 g4+ Ke4 a5 h5 g6 c5 g5 b5 a6 f3 d5 f6 a7 c3+ Kc2 h4 Kb3 c4+ Kc2 f2 g7 h3 g6 h2 e3 Nc6 d6 Be6 d7 Na5 Ra2 Nh6 g8B Bc5 g7 Nf7 Bd2 Nb7 Be2 f1R Bh5 Re1 Nh3 Bb6 Rf1 h1Q Ra6 Ba5 Rc6 Qg2 Rc7 b3+ Kc1 b2+ Kc2 b4 Bh7+ Bf5 B7g6 Re8 g8B Qg3 B8h7 Qe5 Na3 b1R Nb5 Qd5 Qg4+ Ke5+ e4 Be6 Nd6 Ra1 Rf2 Rg1 Rf1 Re1 Qd1 Kd4 e5 b3+ Kb1 b2 Ka2 b1Q+ Ka3 c2 Ka4 c1B Bc2 Ba3 Ne4 Qc1 Qg4 Bc5 Kb5 Qa1 Ba4 Qc3 Ka6 Kd3 Rf3+ Ke2 Qg7 Qb8 d8B Bf2 Be7 Kf1 Bd6 Qc8 Qg4 Qd8 Qf5 Kg2 Rf4 Rb8 a8Q Ba7 Rf1 Rc8 Re7 Rc5 Bb8 Rb5 Rc7 Rb2 Bb3 Ra2 Ba4 Bc8 Qe6 Bd7 Qd6 Be6 Qd7
6QN/2N3qN/2Npqb2/p3BR2/2k1n1r1/P1qRKN2/BnQn2r1/1bqb4 b - - 0 1 illegal: No possible last move
4N1KQ/1R2q2N/Bp1B1N1q/2q1Q1Nq/1n5p/bn5P/4bRb1/rrN2kn1 b - - 0 1 illegal: No possible last move, all moves rejected
2B1BNrb/1k1b4/np1Q1q2/2n2QBp/4q1Rb/2Rrr1nN/3r1PB1/1B4K1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 g4 d5 a4 Kd7 c4 Kc7 f6 e5 a5 h5 c5 e4 g5 d3 f7 d4 c6 h3 g6 d2+ Ke2 h2 a6 b6 g7 b3 a7 e3 Ra6 b2 Na3 b1Q Qe1 d1R Nc2 Qf6 Qb4 Bd7 Ra4 Be7 f8Q Rd3 Nh3 Na6 Bg2 Re8 Kf1 Rd2 a8B d3 Rg1 h1N Nd4 Bd8 Be4 e2+ Kg2 e1B Ra3 Re5 Rc3 Ng3 Qbd6+ Kc8 Bf5 Re3 Ne6 Qb4 Qf7 Qe4+ Kh2 Be7 c7 Bd8 Bc6 Be7 Bb5 Kb7 Nf8 Qfe6 Ng5 Rb2 Bg4 Bc6 Rg2 d2 Qd8 d1R Rc2 Rc3 Bd3 Nf1+ Kg1 Nf6 Qd6 Nd7 Bh3 Rg8 Qf5 Ndc5 Rg4 Ng3 Bg2 Bd7 Nh3 Bh4 Bg5 Rcb3 Rc4 Ra3 Bc2 Re3 Bb1 Rdd3 Rc1 Bc3 Rc2 Rh8 g8B Qg6 Bf7 Rg8 Be8 Bh8 Rc1 Qf6 Rc3 Rbd2 c8B+
4r1bR/1B1qnP2/q1B1n1bB/2n2k1R/bq2N3/p1QBr3/K4p2/2Q1N1bB b - - 0 1 illegal: No proof kernel
5k2/nKQPNbnr/R2q1Qqn/2R2pr1/p1q3R1/4RB2/bRb2b2/N5B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 a5 Kf3 c5 Ke4 h5 b4 f3 d4 f2 g4 f6 b6 c3 d5 c2 g5 h3 b7 c4 d6 h2 Kd5 c3 e4 f5 e5 h4 b5 h3 e6 Bg7 e7 Nh6 b6 Rg8 g6 Nc6 b8R Ra7 b7 Bd4 Be2 f1N g7 Bf2 Na3 Ng3 Qd4 Nh5 Be3 c1Q Nf3 c2 Qf6 Qg1 Ne5 c1Q Bf3 Qg6 Nc2 Be6+ Kc5 Bc4 Rg1 h1B Rg4 h2 Bd4 Bg3 Bg1 Bf7 Raa4 Qf4 Na1 Bf2+ Kb5 Ba2 Rc8 Bg2 b8Q h1B Qc7 Bf7 Rb4 a4 Rb2 Rb7+ Ka6 Na7 Nc6 Qc4+ Rb5 Bf1 Ra8 Bd3 Rc8 Rf8 g8R Bc2 Rh8 Rg8 Rb8 Qd4 Rc5 Ng7 Ra8 Rb3 Rb8 Qc4+ Rbb5 Ra3 Kb7 Bg2 Rb2 Qd7 Be2 Bgd5 Rh7 Rh8 Bd1 Rg3 Bf3 Ng8 Rh2 Rh7 Rb6 Nh6 Ra6 Be3 Re2 Bf2 Rd2 Bb3 Rb2 Bc2 Rd4 Rg5 Rg4 Bfe6 Qe5 Kf7 e8R Qe7 d7 Qd6 Re7+ Kf8 Qf6+ Bf7 Re3 Qd4 Qe6 Ba2 Ne7 Qc4 Qf6
2K1nR2/RQp2n2/2q5/2b2PBN/p2Q4/B1n1rb2/kBBB1qr1/1qn1bN2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 e3 b4 c3 f5 e6 b6 h3 b7 h2 g5 c2 g6 e2 b5 e1Q b6 h4 g7 h3 Bd3 Qe8 Bb2 c1N Bc2 Qc6 Ne2 Nd7 b8B Ne5 b7 Nf6 g8Q Nf7 Ba7 Ne8 b8B Bb7 Qg2 Rg8 Nf4 Rg5 Qgf3 Rg2 Nh5 Qg3 Rg1 h1N d3 h2 Nd2 Nf2 Nf1 h1Q Bc5+ Kd7 Bd6 Ne4 Bda3 Nc3 Ba7 Bc5+ Kc4 Kd6 d4 e5 d5 e4 Qd4 e3 Ra2 Kd7 d6 e2 Qfe4 e1B Bb6 Kd8 d7 Qf2 Qed5 Ke7 d8B+ Kf8 Bg5 a4 Ba5 Rd8 Ra1 Rd6 Rb1 Re6 Qf3 Re3 Qfe4 N3a2 Bd2 Nc3 Qf3 Qf6 Qc6 Ke7 Qa6 Bf3 Qb7 Nd5 Kb5 Kd6 Ka6 Qh6 Qdb4 Nc3 Q4b6+ Ke5 Ka7 Kd4 Kb8 Qc6 Kc8 Rh2 Rg3 Rg2 Rg4+ Kd5 Rb4 Qhg1 Rb5 Kc4 Ra5 Qh1 Ra7 Qb5 Bd3+ Kb3 Bc2+ Ka2 Qf6 Qhg1 Qd4 Qc6 Ba1 Rg4 Rb6 Rg2 B1b2 Qe4 Rh6 Qc6 Rh8 Qh1 Nh2 Qhf1 Rf8 Qfb5 Nf1 Qd3 Bd1 Qb1 Bc2
K1bq3Q/2p1r1bn/1rk1N2B/P1N1n2p/1q2q1R1/4RB1B/rQB2B2/b1q5 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 b5 Ke4 h5 Kd5 f5 g4 c3 d4 b3 e4 f3 a4 c2 g6 f2 a5 b2 e5 b4 g5 b3 g7 f4 g6 f3 Qe2 Bc5 Ra3 Qe7 e6+ Ke8 Nd2 b1Q Nh3 b2 Ng5 Bb4 Rg1 Kd8 Re3 Nd7 Kc6 Bc3 d5 Rb8 d6 Rh6 Rg4 Rh7 Nde4 Ngf6 Bh3 f1Q g8B f2 g7 Bd4 Bd2 Qfc1 Nc5 f1R Be1 Rg1 Bf2 Rg2 Bf7 Rh2 g8B Qf8 Bg6 Re7 Be4 Nh7 Bf3 Bg7 Qd2 Qf6 Bf7 Qd4 Bg6 Qb4 Bd3 Qa2 Qc3 b1Q Qb2 Qaa3 Bg6 Qd1 Bd3 c1B Bc2 Bd2 Bd5 Bdc3 Bf3 Nb6 d7 Nc4 Qb3 Qac1 Qa2 Rf7 Qb2 Ke7 d8B+ Ke8 Qa3 Ba1 Qb2 Rg2 Bf6 Qd8 e7 Rh2 Nge6 Rb7 Nd7 Rb5 Bg5 Rb6+ Kd5 Ne5 Bh6 Qe4+ Kc5 Rd6 Kb5 Rc6 Ndc5 Rg2 Na6 Kd7 e8Q+ Kd6 Nac5 Re7 Qh8 Kd5 Nf8 Rg6 Nfe6 Rf6 Nb7 Rh2 Ka6 Kc6 Ka7 Rg6 Qd4 Qb4 Nbc5 Rf6 Ka8 Rg2 Bh4 Rd2 Bf2 Re2 Bd3 Ra2 Bc2 Rg6 Qc3 Kd5 Nd4 Rb6 Nde6 Kc6 Qb2
BN1b3b/1b1rq2Q/bBr3B1/1BB1Qbb1/NP2k1pq/4n2p/4K1R1/Rn6 b - - 0 1 illegal: No proof kernel
1N2n3/4R1k1/r1bQQ1N1/1q1bb1Kp/bqB1pB2/2R2R1r/R1b2bP1/3R2n1 b - - 0 1 illegal: No possible last move, all moves rejected
3qR2n/R2Nb1Nn/1k1B1RR1/1pb5/3Qr2Q/P2b1Br1/1rbR1p2/2r1b2K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 c5 h4 Kc7 e4 g5 d4 b5 d6+ Kb6 d7 f5 d5 f3+ Kh2 g3+ Kh3 b3 d6 c4 e5 c3 h5 c2 e6 f2 Kg2 g4 h6 f4 e7 b2 e8R Ra4 a3 Nc6 h7 Re4 Nf3 Nf6 Nc3 b1R Ne2 Rg8 h8Q Be7 Rg1 Rb2 Ned4 Nh7 Be2 f1B+ Kh1 Ne5 Nf5 Ng6 Ne5 f3 Bf4 c1R Ng7 Bb7 Qd2 Bc8 Bd1 Bd3 Qh2 Bb7 Qh4 Bd5 Ra2 Bb3 Rf8 Bbc2 Rf6 Qe8 d8R g2+ Kh2 Qf8 Rd7 Qb8 Ra7 Qd8 Rf1 g1B+ Kh1 Bh2 Rg1 Bg3 Rg2 Be1 d7+ Bd6 Rd2 g3 Ra1 f2 Bf3 g2+ Kh2 g1B+ Kh1 Bh2 Rb1 Qc8 d8R Bg3 Re8 Qd8 Rff7 Be7 Nd7+ Kc6 Bb8 Bgd6 Rf5 Bc5 Bd6 Ne5 Rf6 Nf7 Nf5 Rg3 Ng7 Ra2 Rb4 Rb2 Rd4 Qc8 Rd5 Qb8 Rg5 Qd8 Qg8 Nh8 Qc4 Rd1 Qd4 Rc1 Ra5 Kb7 Rgg6 Kc6 Ra4 Kb7 Ra7+ Kc6 Nf8 Kb6 Nd7+
1b5B/1B2RbB1/1n1p3b/B1rb2kp/3Q3Q/q2Nr1r1/B3P1r1/rNR1n2K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kf6 g4 h5 Kg2 a5 c4 a4 c5 d3 b6 f3+ Kh2 h3 b7 d2 c6 f2 c7 a3 b5 a2 b6 Ra5 Bg2 f1R Nf3 Rg1 Bf1 Bh6 Qb3 d1R Ng5 Qf8 Ne6 Na6 b8B Nb4 b7 Ne7 Bd2 Rg8 Qa4 Nd3 Ba7 Nd5 b8B Rg6 Bae3 Nb6 Nf4 Re5 Bc5 Re3 Nc3 Rc1 Bg2 Ba6 c8B Bc4 Bd5 Rc2 Rd1 a1B Bcb7 Rg8 Bb4 Rg7 Ba5 Qa3 Bd6 Ba2 Bf8 Rg5 Nb5 Be5 Nc3 Bb8 Bb3 Rg6 g5+ Kf5 Qb4 Kg4 Qc5 f5 Bg8 Rg7 g6 Kh4 Rf1 d6 Bc4 Rg8 g7 Rg6 Be1+ Kg4 Kg1 h2+ Kg2 Bb3 Bg3 Ba2 Qd4 Rg5 Rhg1 h1B+ Kh2 Rc1 Rd1 Ra1 Rc1 Ne1 Nb1 Bc6 Nd3+ f4 Rg2 Rc5 Kh1 Kf5 Bh4 f3 Bf6 f2 Bd5 f1R+ Rg1 Rh8 g8Q Rff3 Qg3 Rg8 Qgh4 Rg4 Rf1 Rg2 Bh8 Kg6 Bc4 Rfg3 Bfg7 Be8 Rf8 Bf7 Re8 Kf5 Re7 Bb3 Bca6 Bbd5 Bc4 Kg6 Ba2 Kf5 Qh3+ Kg5 Qhh4+
4R3/NR5P/1QR1bR2/Brn2q2/1b1nQ3/1Br1pn1b/5p2/bbNKRn1k b - - 0 1 illegal: No proof kernel
NR1qQ1Nn/b2PR3/2B1qN1b/Bk1N2b1/3n3r/3p2Qb/2r1p1NK/b2b4 b - - 0 1 illegal: No proof kernel
1r1NbQ1k/2K3nb/3QNQBb/Q1n1p3/nB6/3rQ3/1Pn2prR/1R3b1q b - - 0 1 illegal: No proof kernel
nb3B2/1n1prr1k/B6p/1BQ1nNNK/n1BP4/B3br1R/bb6/Q5Rq b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 Ke2 Kf7 f4 Kg7 d4 a5 g4 e5 c4 a4 b6 a3 g5 a2 b7 e3 Kf3 h6 Kg4 h3 f5 h2 c5 b3 g6 e2 c6 e1N c7 e4 Nc3 b2 Bh3 b1N Na4 e3 Qd3 e2 Nc5 Nc6 b8B Nf3 Kh5 e1B Ba3 Na5 Qf1 Rh7 Qb5 Nb7 Qb3 Ne7 Qd3 Bf2 Qb5 Nc3 Qb2 Ne5 Qc1 Be3 Ne2 Na4 Bf1 Nd5 Ng3 Ndb6 Nce4 Bd6 f6+ Kh8 Bc4 Rf7 g7+ Kh7 Nf5 Re7 Rb1 a1B f7 Bb2 f8Q Ra6 Ra1 Na8 Bb5 Rc6 Ba7 Rc3 B7c5 Rd3 Rg1 Rf7 Rg3 h1R+ Rh3 Re1 Qc3 Re2 Rg1 Qe8 Qa5 Qe6 Qe1 Qd5 Qa1 Rb3 Nc3 Qh1 Ne4 Na5 Bcb4 Ba6 c8B Bb8 Qc5 Nb7 g8B+ Kh8 Bc6 Bc4 Ng5 Rd3 Bb5 Ba2 Rc1 Bf4 Rg1 Rf3 Ng3 Be3 Nf5 Re7 Bgc4 Ref2 Nd6 Rff7 Nf5 Rf3 Qd6 Nd8 Bca6 Nb7 Qb6 Re8 Bf8 Ree7 Qc5 Kg8 Ne4+ Kh7 Ng5+
1r1Qq1Q1/kNq2n1q/q1rnBN2/bbbK4/3RR2p/B1pb3N/5P2/4NN2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 h5 Kd4 a5 b4 e5+ Kd5 c5 d4 a4 g4 a3 b6 c3 g5 c4 b5 e3 g6 e2 b7 Kc7+ Ke4 Kb6 g7 e1B d5 h3 d6 h4 d7 h2 Nf3 a2 Qd3 c2 Bh3 Ne7 g8N Rh6 Ng5 Rc6 Rf1 h1B+ Nf3 Ba5 Qd1 c3 Nh6 Qc7 d8N Bd7 Re1 Nc8 Nhf7 Nd6+ Kd5 e4 Nbd2 e3 Nf1 e2 Ng5 Ka7 Ba3 c1Q Be6 Qb1 Nh3 Qh7 Rc1 a1Q b6+ Ka6 Rc2 Be8 Qd4 Nd7 b8Q Ne5 b7 Nef7 Rd2 Bg2 Qc8 Rb8 Qg4 Bh1 Rd4 Ka7 Qg8 Be7 Re4 Bd7 Rd1 e1Q Rdd4 Qe3 Ne1 Bf3 Qg1 Be2 Qg8 Be8 Qd7 Bd3 Qc8 Qb1 Qd7 Qbb6 Qc8 Qa6 Qd7 Rc8 b8N Bf8 Qe7 Qe2 Nd7 Rb8 Qeg5 Be7 Nf6 Bf8 Bc8 Bd7 Nb7 Qe3 Rg4 Qe8 Rge4 Rb6 Ne3 Nc4 Nf1 Bb5 Nd7 Rc6 Qd8 Bc5 Nf6 Ncd6 Be6
bnK1RB2/1r2NBb1/2QRP1qn/1N1r4/3qqB2/1pB1B3/1kpQn3/q3n3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 d4+ Kc4 h5 c5 h6 g5 d6 f5 a5 b5 a6 b3 d5 f3 Ke3 b4 a7 f2 d7 b2 d6 g3 h7 g4 Kf4 g2 Ke5 b3 Ke6 f4 Qd2 g3 Rh4 Nh6 Ra6 Bb7 Nc3 b1Q Nf3 g1Q Nd4 g2 Nf5 Bg7 e4+ Kb4 e5 c4 Rg4 f3 Ne7 Qe4 Nb5+ c3 Bc4 f1Q Rh4 Qdb6 d8B f2 Bc7 Rd8 h8B Qbd4 d7 Qfd3 Rh1 f1N Rd6 Nh2 Bd5 Qd1 Re1 g1N Bb6 Nhf3 Bc7 Rc8 d8B Ne2 Bb6 Rc6 Bc5+ Ka4 Bdb6 c2 Bb4 Qa1 Be3 Rc5 Bc4 Rd5 Bf4 Nc6 Kd7 Nb8+ Kc7 Bc6 Kc8 Qg6 Bc5 Qde4 Bce3 Qad4 Ba3 Q1a1 Bb4 Rc5 Bf7 Rd5 Rg1 Ne1 e6 Be5 Bg7 Bf6 Bf8 Bg7 Bc3 Bb7+ Kd8 Bc6 Nc7 Ka3 Nb5+ Ka2 Rg4 Nd7+ Kc7 Rb8 a8Q+ Kb1 Qa4 Rb7+ Kc8 Nb8 Rg2 Rd7 Qa6 Ba8 Qc6 Rb7 Rg5 Rc5 Rgd5 Ka2 Rd8 Kb1 R5d6 Rd5 Re8 Ka2 Bb4 Kb2 Bc3+
N1Rq2Q1/1rN3pN/2qn3Q/n2B1q2/1q3kbb/nrp1N3/2PB2KN/1n4R1 b - - 0 1 legal: proof: f4 b5 e4 h5 g4 hxg4 a4 d6 e5 dxe5 axb5 exf4 Ke2 f3+ Kf2 Qd4+ Ke1 Qd8 h4 Kd7 Kf2 Kd6 d4 f5 b4 e5 h5 a5 d5 c5 b6 g3+ Ke3 f2 Kf3 g2 b5 f4 b7 e4+ Ke2 Ke5 b6 f3+ Ke3 a4 d6 a3 h6 a2 d7 c4 h7 Ra7 Ba3 Nf6 Qc1 Nc6 b8N Nd4 b7 Nb5 Be2 f1N+ Kf2 Be7 Bb4 Na3 Bd2 Ne8 Nc3 Nd6 Nd5 c3 Rb1 a1N Na6 Nb3 b8N Na5 Bc4 Rb7 Ne3 Kf4 Nc7 Bg5 Rh3 Bh4+ Rg3 Rf8 h8N Rf7 Rb2 Rb3 Bd5 Re7 Nba6 Rf7 Be1 Nd2 Na8 Ndb1 Bd2 Re7 N6c7 Rf7 Ke1 f2+ Ke2 Re7 Nf3 g1Q Nf7 Qg2 Nh2 Qf3+ Kf1 Qg4 Nf5+ e3 Rg1 Qf3 Ng5 Rf7 Bc4 Qc6 Bd5 Re7 Kg2 f1Q+ Kh1 Qfc4 Nh7 Q4a4 Kg2 Qb4 Qd1 Rf7 Qh5 Re7 Be1 e2 Ne3 Rf7 Bd2 e1Q Ra2 Qd1 Ra1 Qf6 d8Q Bg4 Qg8 Qf5 Qg6 N3c4 Ra4 Nca3 Qh5 Nab7 Ra6 Na5 Rb6 Rd7 Rb8 Re7 Rc8 Rd7 Na6 Ra7 N6c7 Rb7 Be1 Qdd4 Bd2 Qdf6 Qg6 Qd8 Qh6+
1K1nr2k/QpP4r/3Q1B1R/1n1N4/NB6/1p1qn1B1/2BBq2q/bbnq2R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 e5 Ke4 g5 Kd5 Kg7 f4 g3 c4 g4 a4 d3 h4 g2 f6+ Kh7 c5 g3 f7 e4 f5 d2 h5 e3 h6 b3 a5 e2 f6 e1Q c6 Qe2 a6 Ne7+ Kd6 Bg7 f8B Nd5 f7 Nc7 Nh3 g1Q a7 g2 Nf4 Qh2 Nc3 g1N Na4 Bb2 Rb1 Ba1 Bg7 Re8 f8B Kg8 Be5 Nb5+ Kd5 Kh7 Bb4 d6 Bg2 Bf5 Be4 Rh8 c7 Nc6 Bc2 Bd3 Ke6 d5 Ba5 d4 Bb4 Be4 Nd5 d3 Bg3 Rb8 a8Q Rc8 Qe1 d1N Qd2 Ne3 Qa7 Kg8 Qd1 Rh7 Bcd2 Kh8 Rc1 Qeh5 Rb1 Ne2 Rg1 Nc1 Rh1 Rg7 h7 Q2e2 Rh4 Qh2 Rh3 Q5e2 Rh6 Rf7 Qf1 Bg6 Qf4 Rb8 Qd6 Rg7 Bdc3 d2 Bf6 d1Q Bfc3 Qdd3 Bd2 Na2 Rg1 Nc1 Qe5 Qdh4 Qd6 Re8+ Qe7 Qh1 Kd7 Nd8 Kc8 Q4h2 Kb8 Qhf3 Qf6 Qd1 Qe5 Qfe2 Qd6 Qc4 Bf5 Rge7 Bc8 Bd3 Bf5 Bb1 Bc2 Qcd3 Bde1 Kg7 h8B+ Kg8 Bf6 Rh7 Bfh4 Kg7 Bed2 Kh8 Bf6+
2r5/R7/1Npk2bq/3q1Qnq/1Kn1N2r/r1P1p1BN/2rQrn2/1B1NN1R1 b - - 0 1 illegal: No possible last move
2bN3B/1q1B2b1/1Qn3n1/2r4Q/b1nbpBK1/p2b4/k1n1PBR1/Nq2RB2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h4 g5 Bf4 a5 Kd2 g3 Ke1 g4 Bc1 Ra6 Nc3 Rg6 Nb1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 b4 Kf7 f4 Ke6 c4 d5 b5 h5 g6 h4 g7 h3 b6 h2 b7 d3 c5 g2 Kf2 a3 Kg3 a4 c6 a2 c7 d4 f5+ Kd5 f6 Kc4 f7 e5 Bb2 a3 Bc1 d2 Qe1 Kb3 Nc3 d1N Nf3 g1Q+ Bg2 d3 Ne4 d2 Qf2 Ne3 Neg5 d1B Bb2 Qe7 Ne1 Nc6 b8B Rh5 Nc2 Nc4 Ne6 Qf1 Rg1 h1B Rb1 a1N Nd8 Ka2 Qb6 Qd7 Rc1 Nge7 g8Q Bg7 f8B Ng6 Qd5 Qff5 Bf1 Be4 Bb4 Bd3 Be1 e4 Qf7 Qb5 Rg2 Rc5 Bf2 Qb4 Bf6 Qb1 Qd5 Qf7 Qh5 Qe7 Nd4 B1c2 Re1 Ba4 Nb3 Nc2 Bb2 Nge5 Kf4 g3 Na1 Qf7+ Kg5 Ng6+ Be5 Be6 c8B Qb7 Bd7 Bh3 Rh2 g2 Bc7 g1B Rg2 Bf5 Bf4 Bh3+ Bce5 Be6 Bh4 Bd4 Bf2 Bf7 Kg4 Bd5 Bf5 Be6 Bf6 Bc8 Bd7 Bh6 Bh8 Bf8 Nf7 Bfg7 Nd8
2B2Kb1/B2R1Q1p/5r2/2p1B2N/n3q2Q/b1bNp1qP/2n2BR1/kq2nrB1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ke2 g5 Ke1 gxf4 Kf2 Kf7 d4 Ke6 g4 Kd5 b4 a5 b6 e5 g5 c5 h3 f3 Kg3 c3 Kh4 f2 Kh5 e3 b5 a4 g6 c2 b7 e4 g7 e2 b6 Kc4 d5 Kb3 d6 e1Q d7 a3 Be3 Kb2 Ne2 c1B Qa4 a2 Nbc3 Nh6 g8Q Qc7 d8B Ng4 Qf7 Nh2 Nf4 Ra6 Nce2 Bg7 Ng3 Rf8 Bh4 Nd7 b8B Bc3 Kh6 Nf3 Ba7 Qb7 Bc4 f1Q Ngh5 Qg3 Be6 Ne1 Bg1 e3 Rh2+ Qbg2 b7 Nb6 Qe4 Na4 b8B Qd3 Be5 Qb1 Qd4 Bb7 Qd8 Bd5 Qg5 Bc4 Kg7 Rd6 Bd7 Rf6 Bc8 Qgc2 Rd2 Be6 Rd7 Qe4 Qe8 Bg8 Nd3+ Kc2 Qf7 Ba3 Nb4+ Kb2 Qg4 Qgf4 Bhf2 Qg3 Qg5 Qbd3 Rd1 a1N Rd2+ Nac2 Qg4 Qb5 Nd3+ Ka1 Qg5 Qb1 Qg4 Re8 Qg5 Ree6 Kf8 Rf4 Qg4 Ref6 Qh4 Qgg6 Bg3 Rf1 Rg2 Qg5 B3f2 Qgg4 Ke7 Qg3 Kf8
2N2N1b/1BNq1nRp/rpr3Q1/r3R2q/8/bP2p2B/2N2qN1/1K1k1Qnb b - - 0 1 legal: proof: h4 d5 e4 a5 c4 f5 cxd5 fxe4 h5 a4 h6 a3 b3 gxh6 Nc3 h5 Bb2 axb2 Nb1 h4 g4 Kf7 f4 Kf6 a4 e5 d4 c5 Kd2 c4 Kc2 h3 g5+ Kf5 g6 e3 a5 Ke4 d6 h2 f5 b6 g7 c3 d7 e2 f6 Ke3 a6 e1Q f7 e4 a7 Nh6 g8N Qe8 d8Q Qd7 d5 Nc6 d6 Ne5 Qf6 Bb7 Na3 b1R Nh3 Nf3 Qg6 Bg7 f8N Ng1 Ne7 Nf7 Nc8 Bc6 Ra2 Ra1 Nf4 Kf2 Qb1 e3 Bh3 Bf3 Ng2 Ke2 Rb2 Qf2 Kc1+ c2 Ra2 Rb8 a8B Bc6 Bb7 Ra8 Rb2 Ra6 Ra2 Rg8 Rb2 Bh8 Ra2 Qe6 d7 Ra5 d8N Qd7 Nde6 Bf3 Qg5 Rg6 Nc7 Rc6 Qg6 Ra6 Nc4 Be4 Ra5 Ra4 Rg5 R4a5 Re5 Bd5 Kb2 c1B+ Kc2 Ba3 Qc1 Nf3 Rg1 h1Q Kb1 Qh2 Bf5 Qh5 Bh3 Be7 Na3 Be4+ Nc2 Ba3 Rd1 Ng1 Rd4 Bd5 Rg4 Be4 Qf1+ Kd2 Qh6 Bf3 Rg7 Bd5 Nge1 Kd1 Qg6 Bh1 Ng2+
1KRqR3/1n2p1p1/R4b1R/n2k2pr/1n2P3/3N3b/1NBB2R1/1qQrqb1Q b - - 0 1 illegal: No possible last move, all moves rejected
Q3R1Rr/3pn3/4p2B/R2qrr1n/1b1nB1Rp/qb5P/2k4K/qR1NN1Q1 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxg4 a4 c6 d5 cxd5 axb5 dxe4 Qd4 e3 Qd3 Ba6 Qd1 Bc8 c4 Kf7 f4 Kg6 b4 Kf5 h3 Ke4 b6 h5 b7 g5 c5 a5 f5 a4 b5 g3 b6 a3 f6 g2 f7 g4 c6 e6 c7 a2 Qb3 h4 Rh2 g3 Qd1 e2 Bh6 Nc6 b8R Ra5 b7 Rf5 Nf3 g1Q Ne5 g2 Nd3 Qa7 Nc3+ Kd4 Qb1 g1N Rg2 Bb4 f8R Nf3+ Kf2 e1R Nd1 Qg5 Re8 Nf6 Rg4+ Re4 Kg2 Qa3 Kh1 Nh5 Bg2 Ne7 Ra8 Kc4 b8R Nd4 Ra5 Ree5 Be4 Bb7 Kh2 Bd5 Qc1+ Kb3 c8Q Bc4 Qb7 Bd5 Qa8 Bc4 Qe3 Kc2 Qg1 Bb3 Rb1 a1Q Rg8 Qe3 Rbe8 Qf3 Bc6 Qd5 Bb7 Qc5 Be4 Qd5 Ne1#
3k1rR1/Pb1R2rr/3pRB1N/2n1Qb2/1Nq3QR/K4p2/B1p3q1/2n1bqR1 b - - 0 1 illegal: No proof kernel
1N2q1Q1/4bb2/6R1/2R1n1kb/N1NP1p2/KQ1N2BB/2pb1np1/b2nrNr1 b - - 0 1 illegal: No possible last move, all moves rejected
2nNb1B1/7n/k2p3r/3N1q1N/pp4N1/nP2N2Q/B1rb2RK/rQ2r1rR b - - 0 1 illegal: No proof kernel
6BN/1nB2rk1/2pqnQr1/1R2PQp1/4bRr1/3B1B2/1NK1p1r1/1rBn2b1 b - - 0 1 illegal: No proof kernel
3RbNn1/6Kp/R1Nr1nN1/p2Q4/2bp1nk1/1Qn4B/P1r4q/rNBn2N1 b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 Bh3 b5 Bf1 bxc4 h4 g5 Qa4 Be7 Qb3 fxg4 Qc2 g3 Qd3 g4 Qd1 Bg5 hxg5 Bb7 Qc2 Ba6 Qd1 Bc8 Kd2 Ke7 e4 Ke6 b4 a5 f4 d5 e5 Kf5 b5 c5 b6 d3 Ke3 d2 e6 c3 b7 d4+ Kd3 c2 e7 c4+ Ke2 g2 e8Q g3 Kf3 c3 g6 Qh4 g7 Nd7 b8N Ndf6 Na3 Be6 Rh3 Ra6 Qe1 Bc4 Nb1 Rd6 Nc6 d1B+ Q1e2 Qh6 Qb8 Qh4 Qb3 Qh6 Ba3 c1N Rh4 Nd3 Bc1 c2 Rh3 Ne7 g8N Nb2 Rh4 Qh5+ Rg4 Qh2 Rg7 Nc8 Ra7 Ne7 Rd7 Bf7 Rd8 Be8 Bd2 c1N Be3 Ncd3 Bc1 Kg6 f5+ Kh5 Qd5 Bc2 Qe3 Nf4 Qc3 Bd3 Qcb3 Nc8 Nge7 Bc4 Ng6 Nd1 Qb2 Ne7 Qb3 Nd7 Ke4 Ng8 f6+ Kg4 f7 Ndf6+ Ke5 Ba6 f8N Bc4 Nh3 g1N Bg2 Nge2 Ng1 Nec3 Bh3+ Kh5 Nd2 g2 Rb1 Kg5 Qa4 Kh5 Rb6 Kg5 Ra6 Kh5 Ne2 g1R Qb3 Kg5 Bf1 Kg4 Nb1 Rg2 Ng1 Rb2 Nd2 Rb1 Bg2 Ra1 Nb1 Nce4 Bf1 Nec3 Bh3+ Kg3 Ne6 Bf1 Na3 Ng4+ Kf5 Bf7 Nce5 Ne7+ Kg5 Re8 Rc6 Bc4 Nb1 Nf6 Kh6 Neg8+ Kg7 Re7 Nef8 Be8+ Nf7 Re2 Ra6 Rf2 Nfe5 Rc2 Ne7 Kh4 N7c6 Kg5 Qb7 Kh5 Qb3 Kh4 Neg6+ Kg3 Bf1 Kg4 Bh3+
nQ1nK3/bR1p1NR1/2R3Nn/brpB1q2/b3RR2/2Pp1br1/7k/1b2Q1B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 e5 h4 exd4 Qd3 g5 Qd1 gxh4 Kd2 Kf7 g4 Ke6 f4 a5 b4 h5 g5 Kf5 b6 e3+ Kd3 a4 Kc4 h3 Kd5 h4 b7 h2 g6 h3 g7 a3 b5 a2 b6 e2 Bd2 Kg4 f5 Kg3 f6 e1B f7 Na6 b8Q Nh6 g8R+ Qg5+ Kc4 Bb7 Be3 Ba5 c3 Bc6 b7 Ba4 Bg2 Bc5 f8R Ba7 Rf4 c5 Nd2 Nc7 Rg7 Rg8 Ndf3 d3 Rb1 a1N Rb4 Nc2 Nh4 Nd4 Bd5 Nde6 Ng6 Nd8 Nf3 Qf5 Ng5 Bc2 Rb6 Bb1 Re1 h1B Rc6 h2 Nf7 Bf3 Bg1 h1B Ree4 Bhg2 Qd2 Bd1 Qe3+ Bgf3 Qe1+ Kg2 Qc8 Kh1 b8R Ba4 Rb7 Rb8 Rbb6 Rb7 Qb8 Na8 Rb3 Rb6 Rb5 Ra6 Rb7 Rb6 Be6 Qf6 Kd5 Rb5 Kd6 Qf5 Ke7 Kg2 Bd5 Kh3 Rh7 Rg7 Ke8 Rg8+ Nf8 Rg3 Rg7 Kg2 Ng6 Kh3 Be3 Kh2 Bg1+
q3b3/nk2b1rR/1nQR2B1/r4pN1/1b1K2nr/1PpN3p/3NrN1B/N1Q5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 c5 g4 Kc7 d4 h5 d5 a5 b6+ Kb7 e5 a4 e6 c3 d6 a3 g5 f3 Ke3 f2 d7 h3 g6 h4 b3 c4 e7 h2 e8Q a2 g7 c2 Na3 c3 Bd3 f1R Bg6 f5 Nf3 Rg1 Nd2 Bb4 Kd4 Nf6 g8N Ra5 Nh6 Nd5 Ng4 h3 Nf2 Rg5 Re1 h1N Re6 Rg3 Rd6 Rh4+ Qe4 Qf8 Qe1 Re3 Qd1 Re2 d8N+ Ka8 Qe1 Bd7 Nf7 Be8 b7+ Ka7 Ng5 Nb6 Ndf3 Ka6 Bf4 c1B Nc2 Bca3 Nd2 Ka7 Rd1 a1R Bh2 Rb1 Na1 Nc6+ Kd3 Rb2 b8N Kb7 Na6 Qg8 Qe6 Na7 Qf6 Re7 Qf1 Rg7 Nc5+ Kc8 Qe1 Qd5+ Ke3 Qa8 Ncd3 Kb7 Qg1 Rh8 Kd4 Rh4+ Nde4 Re2 Rd7+ Ka6 Qc6 Be7 Rd2 Bad6 Qc1 Bb4 Nd1 Nf2 Rd6 Ng4 N1f2 Rf7 Rd1 Rg7 Re1 Rb2 Re3 Re2 Nd2 Rc5 Ree6 Ra5 Rf6 Rgh7 Rf7 Rg7 Qb5+ Kb7 Qa4 Rg8 Rh7 Rg7 Qc6+
Q3KNkn/3R3p/1nb1Bq1b/Np2Nn2/4b3/2B1rPRr/2Nrp2N/1n5Q b - - 0 1 illegal: No possible last move
r2N3K/kQ2N1p1/1rn2Rq1/r2QB3/nRRp3R/1r2B1Pn/pR2b3/3bb3 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Nd2 b5 axb5 h5 Bh3 h4 Bg2 h3 Nb1 hxg2 Kf2 d5 Kf3 Kd7 Kg4 a5 Kf5 f3 e4 d3 c4 a4 b4 f6 Kg6 Kc7 h4 Kb7 c5 d2 h5 f5 h6 a3 c6+ Ka7 c7 f2 h7 f1R e5 f4 e6 f3 b6+ Ka6 b7 a2 b5+ Kb6 e7 f2 e8R Ka7 b6+ Ka6 Re4 Nh6 Nh3 g1N Nc3 Bb4 Rh2 Ng8 Ng5 Nd7 b8B Qe8+ Nf7 Nc5 b7 Bg4 c8Q Nh3 Be5 Ka7 b8R Na4 Rc4 Be2 Rb5 Ba5 Rbb4 d4 Nd5 Rh1 Qb3 f1R Ne7 d1B Be3 Rf3 Rf2 Rf1 Rb1 Rb8 Rb2 Rb6+ Bd6 Qc6 Nd8 Rf5 Rf4 Rf3 Rh4 Rh5 Rf4 Rd5 Rf6 Rdb5 Be5 Qd6 Nf5 Ne7+ Kf7 Rg8 h8R Nc6 Rh4 Rd5 Ne7 Re8 Rb5 Be1 Rbb4 Ra5 Kg6 Qe6 Kh7 Qg4 Ng8 Qg6+ Kh8 Re6 Ne7 Rb8 Rc3 Ra8 Qd5 Rd6 Rcc4 Re6 Bc1 Rb3 Bd2 Nb8 Bdf4 Rb6 Be3 Nc6 Qb7+
b1R5/N1n1RP2/8/1QB1QbN1/n1rb1KB1/2p1pp1Q/2r2r2/nQrk1qQ1 b - - 0 1 illegal: No proof kernel
nqB1b2B/3bpN2/1BPr2p1/Qn1R3R/4K2b/bkpr3n/1rB3B1/2Q4N b - - 0 1 illegal: No proof kernel
NQ2nq2/4nnrB/1Bp5/RR1pQ2R/1nP1n3/R4K2/b2Rp3/q1kb1Nr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 e5 gxh4 e6 Bg7 d4 c6 d5 Be5 d6 fxe6 Ne2 Bf4 Ng1 e5 Ba6 e4 Bf1 Be3 Rh2 Bb6 Rh1 Bc7 dxc7 Kf7 Ke2 Kf8 Ke1 Ke8 Ke2 Kf7 c4 Ke6 g4 Ke5 a4 b5 a5 h5 a6 d5 a7 h3 g5 e3 f4+ Ke4 g6 e5 g7 b3 f5 b4 f6 b2 f7 h4 f8Q b3 Qf6 h2 Nh3 Nh6 g8R Rh7 Qf7 Qf8 Qe7 Na6 Qe6 Rg7 Qe7 Nf7 Qd8 Bg4+ Ke1 e2 Kf2 e1N c8R Nc2 Ra5 Ncb4 Qd2 Bd1 Be2 Nc7 Rc5 Ne8 Nf4 h3 Qc3 Rg1 Na3 b1B Ra5 b2 Nc2 Ba2 Rg2 b1Q Be3 Qa1 Bb6 Rb8 a8R Rb7 Qb2 Rd7 Bh5 Ra7 Ne6 Kd3 Ne3 e4 Qe5 Kd2 Kg3+ Kc1 Nf1 e3 Nc7 Rb7 Rcb8 e2 Bg6 Ra7 Kf3 Qd4 Rg4 Qa1 Ra3 Nfd6+ Bf5 Rb7 R8a6 Ra7 Na8 Rg7 Ba7 Nf7 Bd3 Rg2 Rg1 h1N Rd4 h2 R6a5 Nf2 Rbb5 h1N Bh7 Ng3 Bb6 Nf5 Rh1 Rg1 Rh5 Ne4 Qdb8 Ne7 Rd2
2B2bkQ/N2rq1pq/1NQ2Q2/3p1B2/r2P4/3q1p1b/n2QnqQK/3q1R1R b - - 0 1 illegal: No possible last move
n1n2bQr/1KR3b1/Q3Qp2/1pQ3Pp/1r3N1q/1bB1RQNk/q2q4/1B1q4 b - - 0 1 illegal: No possible last move
1Q4rq/2B1R3/4pp1b/1bRNpR1R/3nR1N1/3rb3/qn1r1P2/kQrB1K2 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a4 d6 e5 dxe5 axb5 c5 Rh3 cxb4 Rh2 Bf5 Rh1 Bc8 d4 Kd7 c4 Kd6 g4 a5 c5+ Kd5 c6 h5 g5 b3 c7 a4 g6 f6 g7 b2 b6 h3 b7 e6 Bb5 h2 Ra3 h4 Rh3 a3 Rd3 h3 Qa4 a2 Ba6 a1B Qc2 Ne7 g8Q Bh6 Bd2 Nf5 Kf1 Bd7 c8R Nd6 Ba5 Nc4 Bc7 Bb5 Rf3 Nc6 b8R Qe8 Qf8 Rg8 Rb7 Rg3 Qb4 Qh8 Rf5 Rd3 Nf3 Ke4 d5 Nd4 d6 Rb8 Rg1 h1R d7 h2 d8R Ra8 Rd5 Rb8 Rg8 Rf8 Rgg5 Rg8 Qd1 Rd2 Rh5 Kd3 Nc3 b1Q Rc5 Qa2 Nd5 Bc3 Qe2+ Kc2 Ra7 Nb2 Qec4 Ba4 Qb8 Kb1 Rb7 Bb4 Qc2+ Ka1 Be2 Bb5 Ra7 Rd3 Bd1 Bbd2 Ra4 Nb3 Re4 Bde3 Nd2 Nd4 Nc4 Bd2 Nce3 Bc1 Ng4 Bce3 Kg2 Rd2 Re1 Rd3 Re2 Re1 Rd2 Re2 Kf1 h1R+ Kg2 Rh3 Kf1 Rc3 Rd3 Rc4 Ra3 Rd2 Ra7 Rg3 Bd6 Rh3 Re7 Rf3 Bc7 Rh3 Qb3 Rc1+ Qd3 Beg5 Qc4 Rhd3 Qc2 Be3 Qb1+
kBR1r3/RN2QB2/r2p2K1/3PrN2/q1Q3b1/pB1n4/b1r2pBq/2B2nb1 b - - 0 1 illegal: No possible last move
1q3rB1/5Q1K/3pbpn1/1qq2R1N/pbQP1Q1B/1q3n2/1rNR3Q/Q1k1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kf5 Kc4 g4 a5 e4+ Kd4 c4 h5 b6 f6 Kg6 b3 e5 a4 e6 b2 c5 h3 e7 h2 e8Q f3 b7 h4 c6 h3 c7 f2 g5 Bd6 Qf7 Bb4 Ne2+ Kd3 Na3 b1Q Nc2 Qb3 Ra2 Nc6 b8Q Ne5+ Kg7 Qe7 g6 Qc5 Rg1 h1Q Rg5 h2 Rf5 Qf3 Ng3+ Qe2 Rb2 h1Q Nh5 Ne7 Ra2 Rd8 Kh7 Rf8 g7 Qh2 g8Q Nf3 Qg3 Ng6 Qf4 Ra6 Bh3 f1R Bg2 Re1 Bh3 Bb7 c8Q Bd5 Bg2 Be6 Qbd6+ Nd4 Bd5 Nf3 Qde5 Rb6 Qa1 Rh1 Qg1 d6 Qg2 Re1 Qgg3 Qhf2 Qh2 Qb5 Qcc7 Qfc5 Rb2 Qef2 Qc6 Ke2 d4 Kd1 Ra2 Qg3 Be3+ Qb1 Bf2 Qh3 Bh4 Rb7 Ne3+ Kc1 Rd2 Rb6 Qa2 Qb3 Nc2 Qhf1 Qcc7 Qe8 Qc6 Qb8 Qc8 Qfb5 Qa6 Qa5 Qc4 Qab5 Qa1+ Qb1 Kg7 Q5e8 Qa7 Bg8 Bg5 Ba5 Qe5 Rb3 Be6 Qeb5 Qef4 Bb4 Bh4 Bf7 Qac3 Qa2 Qa1+ Rb1 Kh7 Qb3 Qa2 Rb2 Bd5 Be8 Bg8 Bd7 Qb7 Bc8 Qbf7 Be6 Qa1+
6n1/8/1BP1rRB1/B1q2b2/QB2q1pq/1b1pk2b/Q3BpN1/N1n1rRbK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kf6 e4 Kg5 c4 d5 b4 f5 c5 a5 e5 g3 c6 a4 e6 a3 e7 a2 e8B d3 h3 d2 b6 d4 b7 d3 b5 Nd7 b8Q Rh6 b6 Nc5 b7 Nb3 Bg6 Bc5 Rh2 f3+ Kh1 f4 Ba3 f2 Qa7 f3 b8B Bf5 Bb4 Nc1 Qda4 d1B Ne2 Bb3 h4+ Kg4 h5 Qh4 Bc7 Re8 Nf4 Re1 Rh3 Bb6 Nd2 g2+ Kh2 Bd4 Be2 f1B Bca5 Kg5 Rb1 a1Q Qa2 Bc5 Bb6 Qb2 Q7a4 Qe5 Ra1 Qe4 Rb1 Bc2 Nb3 Be3 Na1 Bb3 Bf7 Rf6 h6 Re6 h7 Kg4 h8B g5 Bhc3 Bd4 Bg6 Bc5 Nh5 Bf2 Nf6+ Kf4 B4a5 g4 Bcb4 Bd4 Nh5+ Ke3 Nf4 Qh8 Rh6 Qh7 Kg3 g1Q+ Kh4 Bg2 Kg3 Qf2+ Kh2 Bc5 Bf1 Bh3+ Kh1 Qh8 Bf7 Qhd4 Rf6 Qh4 Bg6 Qdd5 Rb2 Bd4 Rg2 Qc5 Rg1 Be5 Be2 f2+ Bf3 Bc7 Rf1 Bd6 Ne2 Bh2 Nf4 Qc4 Bd1 Bg1 Be2 Qe4+ Ng2+
1n3K2/kRQQ2Q1/1p1nb2n/2bN1NQr/5qn1/1Q2R2B/1qp1pP2/B5br b - - 0 1 illegal: No possible last move
K1Brn1Rb/1B4Rq/p1rQ1QR1/2pb2rN/2P4N/R2bR2p/4q1kn/6b1 b - - 0 1 legal: proof: e4 g5 h4 gxh4 b3 f5 Bb2 fxe4 Bd4 d5 a4 b5 Be3 d4 axb5 dxe3 Ke2 Kd7 f4 Kd6 d4 Kd5 g4 c5 c4+ Ke6 b6 h5 d5+ Kd6 g5 e5 b4 h3 b7 h2 b5 a6 b6 h4 f5 h3 g6 Ne7 f6 Bf5 f7 Rh6 g7 Qc7 g8B Ng6 Nf3 Bg7 f8R Nd7 b8R Bh8 b7 Nh4 Nc3 Nf6 Rfe8 Qh7 Rg1 h1B Ra3 Bg6 Re7 Ne8 Rg7 Rh5 Qd4 Rg5 Be6 Bf5 Rc8 Bg6 Rcc7 Rd8 b8R Bf5 Rce7 Bg2 Nd2 Nf3 Bc8 Nh2 Nf3 Bh1 Nh4 Bg6 Kd1 e2+ Kd2 e1R Ne2 e3+ Kc3 e4 Bg2 Bf5 Nf4 e2 Kb3 e3 Ka4 Bd3 Ka5 Rd1 Kb6 e1B Kb7 e2 Re3 Bf2 Qc3 e1Q Nh5 Qe2 Ka8 Rb1 Be4 Rb6 Qd2 Ke5 d6 Rc6 d7 Kd4 Rgg3 Bg1 Bg2 Rh6 Bgb7 Rc6 Qd1 Bd5 Qf1 Re5 R3g6 Rg5 Ra1 Kc3 Ra3+ Kd2 Qf6 Ke1 Qd6 Kf2 Rg8 Nf6 R8g7 Rg8 d8Q Ne8 Nf3 Kg2 Q8f6 Rf8 Nh4+ Kh1 Bf5 Nc7+ Ka7 Rg8 Rbe8 Rf8 Bfc8 Rg8 R8e7 Rd8 Rg8 Ne8 Rc7 Qe7 Ka8 Qh7 Nf3 Kg2 Rf7 Qe1 Rfg7 Qe2 Nh4+
7R/qBB3np/2Q2prk/4b1pr/b2bqq1Q/1b2BN2/1nRPN3/1B1BK3 b - - 0 1 illegal: No proof kernel
2q5/bN1rRBpk/r2bpqQ1/1N5b/4K1b1/Qn1B4/1R3pBP/2Bn1r1B b - - 0 1 illegal: No proof kernel
3N2Br/2BK1pn1/Q3Rr1q/2P1B1p1/kB5n/3pNQnb/1Bn1qb1R/1r6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 d5 h4 Kd7 c4 g5 b4 a4 e4 f3 c5 f2 e5 g3 h5 g2 h6 a3 b6 Kc6 b7 Kb5 e6 a2 h7 Bg7 e7 Nh6 e8Q+ Qd7 Qf3 Ng4 Ne2 g1R Qe6 Ra7 Nd2 Qc7 Ba3 Na6 b8B Qh2 Be5 Nc7 Re1 a1N Nf4 Ne3 Nc4 Ng2 Ne3 Ka4 b5 Nh4 b6 Nc2 b7 Ne8 b8B Ra6 Bbc7 Rd6 Bg2 f1N Bb4 Ng3 Re2 Qh3 Rh2 Rb1 Qf6 Bd7 Ne6 Rc6 Nd8 Qe6 Q6f5 Qh6 Qg6 Rf6 Bh3 Be6 Bf5 Bc8 Be4 Bh3 Bf5 Rf8 h8B Rg8 Kd2 d3 Kc3 d4+ Kc4 d2 Kd5 d1Q Be4 d3 Re1 Nd6 Kc6 Ndf5+ Kd7 Qe2 Bb2 Rb6 Qe6 Bd4 Bhe5 Ng7 Bh7 Rh8 Bg8 Ra6 Nc4 Bf2 Ne3 N3f5 Qc4 Rf6 Qa6+ Kb3 Bf4 Qd1 Nd5 Ng3+ Re6 Qf1 Bfe5 Qe2 Qb7 Ka4 Ne3 Qg6 Qb6 Qh6 Qa6+
3K1RQ1/1Pn2p2/1bk1q1b1/4N1r1/N3nBr1/p1n2BQr/p2BB1q1/2BrR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 b4 f3 e4 c4 g4 f2 d4 a3 e5 h3 e6+ Kd6 b5 a4 g5 a2 g6 h2 g7 c3 b6 h4 b7 h3 Qe1 c2 Nf3 a3 Be2 f1R Nc3 Qb6 Na4 Nf6 g8Q Rg1 Ne5 Rg6 Qg3 Rg4 Bd2 Rh7 Rae1 Ne4 Rhg1 Nc3 Kf6 h1N e7 c1R e8B h2 Bc6 Nf2 Rg2 h1Q Rgg1 Kc7 d6+ Kd8 d5 Ra5 d7 Kc7 Rg2 Bc5 d8B+ Kd6 Rgg1 Rh3 Bf4 Be3 Be7+ Kc7 Bb4 Nfe4+ Ke7 Rd1 Ke8 Na6 d6+ Kb8 d7 Kc7 Bd5 Qg2 Rh1 Bc5 d8B+ Kd6 Bh4 Nc7+ Kd8 Bf5 Bhg5 Bg6 Bc1 Qa6 Bgf4 Qc4 Bc6 Qe6 Bd5 Rb5 Ba5 Bb6 Bc6 N3d5 Bad2 Ndc3 Rhg1 Ng5 Bcf3 Nge4 Nd3+ Kc6 Rh1 Rh8 Rh7 Rbg5 Ne5+ Kd5 Rg7 Rh3 Rh7 Kd6 Rh8 Kd5 Qg7 Kd6 Rf8 Kd5 Qg8 Kd6 Nd3+ Kc6 Ne5+
Bqrnb3/N1kp2p1/1rrp3r/Q3QRRB/2B1B1N1/K1bb1b2/4PB2/6n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 d6 cxd6 fxe5 Ra4 Qd4 Ra3 Qd1 Ra8 Kd2 f5 a4 b5 c4 g3 Kc2 f4 Kb2 f3 h4 f2 e6 b3 a5 b4 a6 g2 e7 Nc6 h5 Rh6 a7 Nf6 c5 Nd5 Qd2 Ba6 Nc3 Nb6 Nh3 g1R Bg2 f1B Nb5 Nd5 Ra5 Rc8 a8B Nf4 Na7 Bd3 Be4 Bg2 Nf2 Bf3 Ng4 Nh3 Qc3 Rf1 Qe5 Ng1 Be3 Rc1 Bf2 Qc7 Rh2 Qb8 Rg2 Nd8 c6 Rc3 c7 Rc6 Ka1 b2+ Ka2 b3+ Ka3 b1B Rd5 Rh7 h6 b2 Rb5 Rh8 h7 Ba2 Rd5 b1R Ra5 Bf7 Rc5 Rg8 h8Q Rbb6 Qhh5 Rh8 Qhg5 Rh1 Qd2 Rh6 Qa5 Bg6 Qb2 Kf7 e8B+ Ke7 Rf5 Bh5 Bf7 Bg6 Bc4 Ke8 Qbe5+ Be7 Nh2 Bf7 Rgg5 B7h5 Ng4 Bf7 Qec3 Bf6 Qd4 Ke7 Qdc5 Be8 Bf7 Qb7 Bh5 Bc3 Qe3 Rb8 c8B Qc7 Bcb7 Rc8 Qf4 Qb8 Ba6 Nf7 Ne3 Kd8 Bc4 Kc7 Qfe5 Nd8 Ng4
1bb5/prR2bQ1/q1B2r2/N1Bn1b2/1Q1N1Pp1/Rpk1N1r1/r1n5/N4N1K b - - 0 1 illegal: No proof kernel
5B1K/1Rn1qp2/2bQb3/b1bn1q2/2B4N/kB2p1q1/NQqBPpRr/3B4 b - - 0 1 legal: proof: c4 b5 g4 a5 h4 g5 f4 gxf4 g5 d5 b4 Ra6 h5 Rg6 hxg6 axb4 Rh3 dxc4 Rh2 Kd7 Rh1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 a4 h4 g7 f3 d3 b3 g6 Kb4 d4 c5 d5 f2 a5 b2 d6 h3 d7 h2 a6 c3 a7 c2 a8B c4 Bf3 c3 Bh3 Na6 Be6 Nf6 g8Q Nc7 g7 Nfd5 Bd2 c1Q Ra7 Qc2 Rb7 Qg6 Qc2 Qg3+ Kf5 Qe8 d8B Qd7 Qd3 Ka4 Qh7 b4 g8B b3 Qg7 c2 Bh7 c1B Nc3+ Ka3 Na2 b1Q Be4 Qe8 Nf3 Qc2 Rg1 h1B Rg2 Bb2 Qdd4 Bc3 Nh4 b2 Bd3 b1Q Qde5 Bb4 Qd6 Bc5 Qf6 Bg7 Qa1 Bc3 Bg6 Ba5 Qae5 Qh3+ Kg5 Qbb5 Bc4 Qbb3 Bh7 Qhf5+ Kh6 Qbf3 Kg7 Qg3+ Bg6 Bd7 Nf3 Rh2 Nh4 Nf4 Bed5 Be6 Bb3 Qd7 Bdc4 Nfd5 Kh8 Nb6 Rg1 Bc6 Rg2 Nbd5 Bh6 Qe8+ Bf8 Bc8 Qa1 e5 Bg5 e4 Bd2 e3 Qc3 Be6 Qce5 Qb1 Bd1 Qd8 Bcb3 Qfc2 Bd3 Qe7 Bdc4 Qf5 Qg7 Qbc2 Qb2+
N5R1/1qNnKQr1/1kp5/4b1Q1/PpR1Bp2/BnQpbr1b/rQQ5/6q1 b - - 0 1 illegal: No possible last move, all moves rejected
1N3nq1/4rk1p/bb2BNR1/2p3Q1/1B1N1R2/nq1NprrP/3p4/2n1Q1NK b - - 0 1 illegal: No proof kernel
BnbK1b2/2nRBQpp/N1p1B3/2bp1B2/2q1P2r/2B1Nk1n/Q2Rq3/6r1 b - - 0 1 illegal: No proof kernel
1r1QK3/N2R1p2/2N1bk1n/1Qbp3P/b1p1Bp1N/N3NnBR/4r1q1/q4n2 b - - 0 1 illegal: No proof kernel
4Rk2/qn1r4/2R1n3/2RrNp1P/p1b1NBr1/p1KR4/Qrpr4/b3R1QB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 e4 a5 h4 f5 b4 g5 d4 c5 Kd2 g3 h5 g4 e5 f3 b5 f2 b6 c4 b7 c3+ Kc2 g2 d6 g3 d5 a3 e6 a4 e7 Na6 b8R Rh7 Bh6 Bg7 Qd2 Qd7 Bf4 Qa7 Nf3 g1R Rb5 g2 Ne5 Nh6 Rc5 Nc7 Qe1 Rb8 Nd2 Rb5 Rc1 Ne6 Ne4 Ba6 Be2 f1R Bf3 Rf2+ Qd2 Rd1 Re1 g1R Bh1 Rff1 Qf2 Rg4 Qg1 Bf6 Rc6 Rf3 Nd3 Bd4 d7+ Kf7 e8R Kg7 d8Q Nf7 Qb6 Nfd8 d6 Nb7 Ne5 Rfd3 d7 Rb1 Qb3 Bb5 Re7+ Kf8 Qa2 Rb4 Rg7 Ba6 Rb1 Rb6 Rb4 Bc4 Rb5 R1d2+ Kc1 c2 Rd5 Rdg2 Rdc5 Rh8 Rh7 Ba1 Rg7 Rg8 Rh7 R8g7 d8R+ Ke7 Rdd6 Kf8 Rd4 Rd7 Re7 Rb2 Rdd6 Rdg3 Rd2 Rgd3 Rdd1 R3d5 Rd3 R2g3 Kd2 Rg2+ Kc3 Rd2 Re8+
kN6/2N2KNb/Np1p1NQR/6p1/8/1B1npbB1/n2qPnr1/nr2RQ1n b - - 0 1 legal: proof: g4 a5 d4 f5 b4 axb4 h4 c5 h5 cxd4 h6 fxg4 Bg2 g6 Bf1 Bg7 hxg7 Ra5 Nc3 Ra7 Nb1 Ra8 Kd2 e5 Kd3 h5 Kc4 d3 Kd5 d2 a4 h4 c4 g5 f4 b3 c5 g3 a5 h3 f5 h2 a6 b2 c6 g2 f6 e4 a7 b6 c7 e3 Nh3 g1N Nc3 b1B Nb5 Nc6 Bb2 Nh6 g8N Nf5 Be5 Nfd4 Nf4 Bh7 Ne6 Ngf3 Bg2 Nc2 Bg3 Bb7 c8Q Nfe5 Qf1 Nd3 Re1 d1N Be4 N1f2 Nbc7+ Kf7 Kd6 Na1 Ng7 Ncb4 Na6 Na2 Qc2 Rc8 Bg2 Bf3 a8N Rc5 Qb1 Rb5 N8c7 Kf8 Qc2 Rb1 Bh3 Kf7 Be6+ Kf8 Rg1 h1N f7 Qf6 Rg2 Qc3 Rh2 Qd2 Nf6 Nd1 Ne4 Nd1f2 Kd5 Ke7 f8N Kd8 Rh6 d6 Nd7 Kc8 Ndb8+ Kb7 Bf7 Qc1 Ke6 Qd2 Kf6 Ka7 Bb3 Rf8+ Ke6 Rf4 Ke7 Rg4 Kf7 Kb7 Nf6 Ka7 Bh2 Rg2 Bg3 Kb7 Qc5 Ka7 Qf5 Kb7 Qg6 Ka7 Nce6 Ka8 Nec7+
3bkBB1/1r3Bp1/2Kpb2n/1N5N/p1b1RRBq/4p1BP/Q1Q4b/2nb1r2 b - - 0 1 illegal: No possible last move, all moves rejected
Nn6/2P2NBr/pNnpp1kn/6Q1/4n3/1RQNn1q1/pNb5/KR1r1Bb1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Kd2 Kf7 b4 h5 g4 a6 c4 d3 Kc3 h3 Kb2 d6 f4 d2 g5 h4 c5 e6 g6+ Kf6 b5 h2 b6 h3 b7 Kg7 f6+ Kh6 c6 Qe8 f7 Qd8 f5 Qd7 g7 Kh7 c7 Qe7 f6 Nh6 g8N Qd8 Nf3 Bd7 Ra3 Kg6 Qb3 d1N+ Ka1 Ne3 Nc3 Bg7 f8Q Rh7 f7 Bd4 Bb2 Qg5 Nd1 Qg3 Ne1 Bc6 Qd3+ Be4 Qc3 Bc2 Rb3 a3 Qe7 a2 Nd3 Ba7 Rg1 h1N Qd8 h2 f8N+ Kf5 Qe7 Nf2 Nd7 h1N Nb6 Nfg4 Qd8 Nhf2 Qg5+ Ke4 Rh1 Ne5 Rg1 Nec6 Rh1 Nd7 Rg1 Re8 b8N Rf8 Na8 Rf5 Rh1 Rd5 Rg1 Nde5 Nd7 Nb8 Ndb6 Nec6 Ne7 Rd4 Ng6 Rd5 Nge5 Rd4 Qg7 Kf5 Nf7 Ne4 Qg4+ Kf6 Qf5+ Kg7 Qg5+ Kf8 Nc4 Bb6 Ne1 Rd2 Qd3 Nd7 Be2 Nd5 Rf1 Bg1 Ncb6 Ne3 Bf6 Nef5 Nb2 Ne3 Qc3 Ndb8 Ned3 Qf2 Qgc5 Qg3 Rb1 Rd1 Bf1 Kg8 Bd4 Kf8 Nfe5 Kg7 Nf7+ Kg6 Bg7 Nf6 Q5a5 Ne4 Qg5+
B4N1R/2N1bbqR/n2N4/krb1B1p1/p5p1/p3nP1r/Qr1N3Q/2Nb3K b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 exf5 h6 Ra3 hxg5 Ra1 g4 c4 a5 h4 d5 b4 Kd7 h5 Kc7 h6 Kb6 b5 e5 h7 g5 f6 d3 f7 d4 Bf4 a3 Ne2 a4 c5+ Ka5 b6 e4 b7 e3 c6 Bc5 f8N Qf6 c7 Be6 c8N Ne7 Qb3 Na6 b8N Qg7 Nd6 Nf5 Nd2 Bf7 Nc1 e2 Be5 Ne3 Qa2 Ra7 f3 Rb7 Kf2 e1B+ Kg1 Rb5 Be2 Bg3 Bd1 Rb2 Bb3 Bf4 Bd5 Rb5 Nf1 d2 Ba8 d1B Nd2 d3 Rh2 Bg3 Kh1 Bf2 Nc8 Be7 Nd6 Nc4 Rh3 Bc5 Rh2 Ne3 Rh5 Rg8 h8Q Rb2 Rh2 Rb5 Qh3 Rh8 Qg3 Rh3 Qg1 Rg3 Rh8 Rh3+ Qh2 Rb2 Nf1 d2 Rb1 Rc2 Rb7 Rb2 Rc7 Bc2 Ra7 d1R Rd7 Rd4 Nd2 Rdb4 Rc7 Rb5 Rd7 Nb4 Na6 Bd1 Nc7 Na6 Rd8 R5b3 Rh7 Rb6 Ng6 Rb7 Rdh8 R7b5 Nf8
5bR1/4B3/1n1N1B1R/2prkBpn/r2n4/n1QBNq2/p1b1Pp1K/2r1Q2B b - - 0 1 illegal: No possible last move, all moves rejected
3B2kN/7R/b5p1/BrN1r1p1/3bnpp1/1qNQbP1b/r1nN3N/4R1QK b - - 0 1 illegal: No proof kernel
2R2r1B/3RK3/1nb1b1pq/np1QQ2B/2p1rbQr/1NP4p/Q5Qb/1N2k3 b - - 0 1 legal: proof: g4 e5 h4 Qxh4 d4 a5 dxe5 f5 b4 fxg4 Kd2 axb4 Ke1 Qh2 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 h5 f4 c5 a4 b5 a5 d6 e6 b3 a6 c4 e7 h4 e8Q g3 a7 Kg4 f5 g6 f6 g2 e4+ Kg3 e5 Kf2 e6 b2 f7 Bh6 f8Q+ Bf4 e7 Nc6 Qff7 Na5 Ne2 g1B Nd4 h3 c3 Rh4 Qg4 Ke1 Be3 Qd2 Qc6 Bgh2 e8Q Bd7 Qb7 Bc6+ Ke6 d5 Nb3 Ne7 Bd4 Nc8 Bh8 Nb6 Ke7 d4 Qd5 d3 Ra3 Rb8 a8Q Qc1 Rg1 d2 Ra2 d1B Be2+ Kf2 Rg3 Ke1 Rd3 Bc2 Rd4 Bf5 Qdg2 Be6 Rd7 Rd8 Qaa7 Ra8 Qeb8 Qd2 Qe5 Rf8 Qba8 Na4 Qac5 Nb6 Qcd5 Qe3 N1d2 b1R Qa7 Rd1 Nb1 Rd4 Rd2 Nb7 Qa2 Re4 Rd8 Na5 Rc8 Bb7 Qgf5 Bc6 Bh5 Bfg3 Qg4 Qh6 Qc5 Bf4 Rd7 Bcd5 Qcd4 Bc6 Qdd5
5k2/1qRBb1rr/N1Pn1p1p/b1BbR1n1/2p3B1/1br2B2/p2B1KQ1/2N3Q1 b - - 0 1 illegal: No proof kernel
1K1nQ1k1/5RrN/P2r1p2/B1Q3p1/n2bQp2/1b3Brp/R1Qr4/b1N1qQ2 b - - 0 1 illegal: No proof kernel
1bN1Rq2/4NbQB/bK4BQ/3Pn3/4np1r/1R2pr1p/6Bp/2B1Bqbk b - - 0 1 illegal: No possible last move
4Q2Q/8/Knpp2QQ/bP1pbn2/1bQ2B2/q1R1rqp1/NR2b1Nk/4rB2 b - - 0 1 illegal: No proof kernel
K4Q2/6Np/R2q2r1/BrBn4/Q1Rpq3/1R1PqRp1/pN2kRqb/5n1b b - - 0 1 illegal: No possible last move
1n6/2b1Bpr1/qQR2R1K/3Rn2b/p3pB2/p1QN3k/PR1Nn1n1/5Rqr b - - 0 1 illegal: No proof kernel
q4B2/2KBpkQ1/R5r1/2b2Brr/2bB4/np2P2Q/R2p1N1p/N1q1Bnr1 b - - 0 1 legal: proof: g4 a5 h4 g5 b4 axb4 d4 gxh4 d5 f5 gxf5 c6 Nd2 cxd5 Nb1 d4 Kd2 d5 Kd3 b5 a4 h5 c4 h3 f4 b3 f6 b4 f5 b2 e3 h2 c5 h4 c6 h3 c7 b3 a5 Rh5 a6 Bd7 c8Q Be6 a7 Na6 Bd2 Bg7 Qg4 Kf7 Be1 Rg5 Na3 b1R Ra2 Nh6 Nc2 Nc7 Na1 Nb5 Qd7 Rb8 a8B Rb6 Bc6 Qa8 Qc8 Ra6 Bd7 Na3 Bg2 Bh8 Be4 Rb6 Qg2 Ng4 Qg3 Rb8 Qc3 Rbg8 Qf3 R8g6 Qb2 Kf8 f7 Kg7 f8B+ Kf7 f6 Bg7 Kd2 d3 Kc3 d2 Kb4 d1Q Kc5 d4+ Kb6 d3 Kc7 d2 Bf5 Bc4 Qg2 Bh8 Bg7 Qc1 Qf1 Nf2 Qg2 Ne4 Qc3 Ng3 Qd4 Kg8 Qg4 Nf1 f7+ Kh7 f8B Kg8 Bd4 Kf7 Ne2 Bg7 Nf4 Bf6 Rg1 h1R Nd3 Bg7 Nf2 Rh2 Bc3 Bd4 Rh1 Bc5 Bd4 Rh5 Q2f3 Rg2 Qg5 h2 Qh3 Rg1 Qh6 R1g2 Rg1 R2g5 Rg4 Bd5 Re4 Bc4 Re6 Qa4 Rc6 Qa8 Ra6 Qc3 Ne4 Ng3 Bf2 Rg1 Be1 Qc1 Nf2 Nf1 Qg7+
b1n1N2r/7B/2R1r1R1/2nn1R1N/QB2pp1n/Rq3PQ1/1pr1Rpk1/1n1K4 b - - 0 1 illegal: No possible last move, all moves rejected
k1BBr3/4rq1p/1N1Qp2Q/8/b1Rnq1NK/QQn1P1n1/R5pp/2Q2nr1 b - - 0 1 illegal: No proof kernel
4Qb1K/2RR1B1n/pr5n/nN1pR2R/5pr1/1Q1pnrN1/1R1P1k1r/1q2B3 b - - 0 1 illegal: No possible last move
Q1qR3B/b1qn1Npp/N7/1q2pRRR/R1B1rp1K/1p3k2/1Q1P2b1/4r2n b - - 0 1 illegal: Other
5K2/n1b1QpN1/kBp2rR1/2p5/1qN3BN/n3Pr1q/Q1p1bNnp/3RN3 b - - 0 1 illegal: No proof kernel
3K1R2/2pB2q1/pbp1Np2/r2k1Qqr/b4B2/1R1nB2P/1Bnnp2B/3N2Q1 b - - 0 1 illegal: No proof kernel
1Qbk4/1B3p1b/pKR1Q1P1/n4p1R/2N1pp2/1br2R2/1b1q1N2/r1B1n1RR b - - 0 1 illegal: No proof kernel
3r1n1K/B3QqB1/p1RNqqR1/1Q2p2b/2p2pB1/2p5/1n2PBBk/1r2n2N b - - 0 1 legal: proof: c4 g5 f4 gxf4 h4 d5 g4 dxc4 a4 b5 g5 Bh6 g6 Bg5 hxg5 bxa4 Kf2 Kd7 Kf3 Ke6 Kg4 Ke5+ Kh5 c5 b4 f5 d4+ Ke4 b5 e5 g7 a6 g6 c3 b6 a3 b7 f3 d5 a2 d6 c4 d7 f2 Qd6 Nh6 g8Q Qf6 d8B Ng4 g7 Nd7 b8B Nf8 Ba7 Ne3 Bdb6 Kf4 Nh3+ Kg3 Na3 Rb8 Nb5 Nd1 Qgd5 Nb2 Bg2 f1Q g8B h6 Rg1 Kh2 Rb1 a1N Be6 Nc2 Nf2 Ne1 Nh1 Bd7 Qe7 Be8+ Qf7 Qf2 Nd6 f4 Bg4 Qe6 Bd8 Qb6 Bf6 Qd8 Bg7 Qdf6 Qb5 Rd8 Nc8 Rg8 Bce3 Rd1 Ra1 Rb1 Nd6 Rh8 Bf2 Rg8 Qg6 Rh8 Ra5 Qff7 Kh4 h5 Kg5 h4 Qf6 h3 Qe7 Qg8 Qb3 Bh5 Rc5 Qgf7 Qa4 Nd7 Rc7 Rd8 Qb5 Nf8 Rc6 Ra1 Bd5 Qd7 Kh6 Rb1 Bf5 Qde6+ Rg6 Qef6 Ng3 Q6e6 Nde4 Kg2 Bg4 h2 Nd6+ Nf3 Qeb7 h1Q Qe7 Qh4 Nh1 Kh2 Be4 Ne1 Bg2 Nd7 Kh7 Nf8+ Kh8 Qg5 Bae3 Qgf6 Ba7
KN3n2/p6r/BbRprQ1R/1Q6/1N1r3p/2pQbp2/1bP3Q1/1QqkBb2 b - - 0 1 illegal: No proof kernel
6b1/p1QN1Qk1/3b1q2/1r1Nn1rp/3p1Npp/1P4R1/N1n2p1K/N1BBnR2 b - - 0 1 illegal: No proof kernel
2b5/2NQ1q1k/R1n1Bpp1/2qprnBR/pr3PK1/N1B2Q2/2p3p1/3rB1B1 b - - 0 1 legal: proof: b4 h5 d4 e5 g4 hxg4 a4 exd4 b5 Bb4+ c3 b6 a5 bxa5 cxb4 a4 e4 Kf8 Ke2 d5 h4 a5 b6 c5 b7 c4 b5 g6 h5 Kg7 h6+ Kh7 e5 g3 Kf3 d3 e6 a3 e7 a2 e8Q c3 b6 c2 Qd7 d2 Na3 Qc7 Kg4 Ra6 Rh5 Nc6 b8B Nd8 b7 Rc6 Qf3 d1Q Ba7 Qd2 b8B Rc3 Nh3 Ne7 Nf4 Qd4 Bh3 Qdc5 Ne6 g2 Bf4 Qb7 Nc7 Re8 Bd2 Re3 Be1 Nf5 Bb6 R3e5 B8a7 Kh8 h7 Nc6 Bb8 Kg7 h8B+ Kg8 Bg7 f6 Bh6 R8e7 Bc3 Kh7 Be1 Qb4+ Bd4 Qc5 Bdc3 Rg7 Ba7 a4 Rb1 a1R Rb6 Rd1 Ra6 Nd6 Qe4 Nf5 f4 Rge7 Qf3 Re4 Qe8 R7e5 Qd7+ Qe7 Be3 Qf7 Ba7 Qb4 Bad4 Qc5 Bg1 Ne3+ Kh4 Red4 Be6 Nf5+ Kg4 Rb4 Bg5+
1Rn1k3/1p1R2pQ/b2p4/N2b2pn/BKp2rQ1/p2rB3/Np1PqN2/5N1N b - - 0 1 illegal: Other
3kqR1Q/3R1B2/n1q4n/Nq2nr2/1B1BrN1P/2r5/N3bp2/BK2Q3 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 d4 c5 b4 cxb4 b6 h5 gxh5 Bc5 dxc5 axb6 Ra7 b5 Ra3 Nh6 Ra1 Ng8 Kd2 f5 Kc2 g5 h4 g4 e4 g3 c6 g2 e5 f3 d6 f4 h6 f2 c7 f3 d7+ Ke7 h7 Ra2+ Bb2 Qe8 e6 Ra4 Nc3 b3+ Kb1 b4 Na2 Nh6 Bd4 b2 Nh3 g1N Nf4 Ba6 c8Q Be2 Qe1 Na6 Qcc3 Rg8 h8B Rg3 Bg2 f1R d8B+ Kd6 e7 Kd7 Ba5 Rh3 Kc2 Rg3 Rd1 b1Q+ Kd2 b3 Bb4 Qf5 Kc1 Qd5 Kb1 Qc6 Bh3+ Kc7 Be6 b2 Bf7 Kd7 Bbc5 Rc4 Bb4 Rg4 Bhg7 Rc5 Bgf6 f2 Rh3 Nf3 Bh8 Ne5 Rf3 Rg5 Rd2 Rf5 Bf6 Qea8 e8N Rh1 Bg7 Kd8 Nd6 Qe8 Rd1 Qac6 Nc4 Rg1 Na5 Rg4 Qc2 Rc3 Rd2 Rh5 Qh7 Rf5 Qh8 Rfg5 Nh5 Re4 Rf6 Rf5 Nf4 Rd3 Bh5 Rde3 Rf8 Rc3 Bf7 Rb3 Be3+ Rd3 Bc3 Nc4 Kc2 Bf1 Bc5 Be2 Bd6 Rf3 Rd5 Rh3 Bgd4 Ne5 B6c5+ Kc8 Rd7 b1Q+ Kd2 Rhe3 Ba1 Qbb5 Kc1 Rf3 Bdc3 Rfe3 B3b4 Rd3 Kb1 Rc3 Rb7 Kd8 Bd4 Rc5 Rc7 Rc3 Rd7+
NKnr1q1B/R3QB2/4n2p/q2Q3N/r3BRk1/B2p4/r2P1r2/1N1q4 b - - 0 1 legal: proof: h4 b5 c4 c5 a4 a5 f4 e5 cxb5 exf4 b4 cxb4 b6 g6 h5 b3 b7 Nc6 b8B gxh5 Rh3 Ba6 Rh1 Bb5 axb5 h4 b6 a4 Rxa4 Be7 b7 Nb4 Ra7 Bf6 Ra2 Ba1 Rxa1 Na6 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 Kd6 f3 g4 h3 e4 h6 e5 b2 e6 f2 e7 h2 e8N f4 Nc7 f3 Bd3 f1Q Nh3+ Kh4 g5 f2 g6 Ne7 g7 Rf8 g8B Nc5 Qe2 Ne6 Bf7 Ra2 Na8 Qa5 Nf4 Rd8 Nh5 Kg5 Qe5+ Kg4 Qd5 Ra4 Be4 Nc8+ Ke5 Qd1 Rf1 h1Q Bc7 Qg2 b8Q Qgf3 Qb4 Qa3 Qb7 Qf8 Qb4 Ra2 Qe7 Ra4 Bb6 Ra2 Bd4 Ra4 Nc3 b1R Ba3 Rb2 Nb1 Ra2 Rg1+ Kh3 Rg4 f1R Rf4 Rf2 Rf6 Nb6 Kd6 Kg4 Rf5 Ng5 Kc7 Nc8+ Kb8 Ne6 Bh8 d6 Qb5 d5 Rf6 d4 Qd5 Ng5 Ra6 d3 Ra7 Rc2 Ra2 Ne6 Rb2 Re8 Rb6 Rd8 Rc6 Ra2 Rca6 Ng5 Rf6 Ne6 Rf4+
2r2q1N/2B2kn1/2qqq1n1/2Q5/Nn1q1B2/RQ2R1N1/1P1n1K1R/1rr4N b - - 0 1 legal: proof: d4 a5 a4 b5 axb5 c5 f4 cxd4 g3 e5 c3 exf4 Bh3 a4 Nd2 a3 Bg2 a2 g4 h5 g5 g6 Be4 Bh6 Bb1 axb1Q gxh6 g5 h3 g4 Kf2 g3+ Ke1 Bb7 Nf1 Bf3 Nd2 Bg4 hxg4 Ra5 Kf1 Ra6 Ke1 Ra8 e4 f5 e5 d5 c4 h4 h7 h3 g5 f3 g6 f2+ Ke2 f1N b6 d3+ Kf3 d4 e6 h2 c5 f4 c6 g2 c7 Ng3 c8N Nh5 e7 Na6 b7 Ng7 b8B Nb4 Ra6 Qa2 Bc7 Qe6 Ne2 g1R Nb6 Rc8 Ndc4 d2 Na4 d3 Qf1 d1Q Be3 d2 Kf2 f3 Bef4 Qdd6 Qe1 Qc1 Ra5 d1Q Ne3 Qcc5 Qc3 Q1d4 Ng3 Rb1 Qc2 Qcf5 Qc5 Qf8 Ra6 Nh5 g7 Kf7 e8R Ne7 Ra5 Ng6 g8Q+ Kf6 Rc1 h1Q Rc2 Ng7 Ra6 Qh6 Nh1 Qc6 Rd2 Qed6 Qgd5 Qe6 Qb3 Kf7 Nb6 Qcd6 Ra3 Qc6 Na4 Qfd6 Kg3 f2 Nf5 Qf8 Re2 Rg8 Re3 f1N+ Kf2 Nd2 Rd8 Rh8 Rd5 Qfd6 Nfg3 Rhe8 Rh5 Re7 Bd8 Rec7 Rh4 Qf8 Rh2 Qcd6 Qa5 Rc2 Bc7 Rcc1 Qc5 Qc6 Qbc2 Qed6 Qd3 Qh3 Qb3+ Qhe6 h8N+
4b2K/2BrR3/q2q1rN1/N2NRpbN/Q1n5/1Bk1bP2/1nB4b/1Q3n2 b - - 0 1 legal: proof: a4 b5 b4 e5 d4 g5 dxe5 d5 h4 gxh4 axb5 c6 g3 hxg3 c4 c5 bxc5 dxc4 e4 Ke7 Ke2 Ke6 Kf3 f5 Kf4 h5 b6 a5 c6 a4 c7 c3 f3 c2 b7 h4 Nh3 a3 Ra2 g2 Nc3 g1B Bd3 Na6 b8N Qd6 Kg5 Be3+ Kg6 Nf6 Re1 Nb4 Nd5 Bd7 c8B Ng4 Nc6 Ra6 Na5 Rh7 Bb2 c1B Bc2 Bcd2 Qb1 Nd3 Bd4 Bfh6 Bb6 Bhg5 Bc7 Nb2 Ra1 a2 Re2 Rh8 Kg7 Rd8 Bb7 Be8 Kh8 Rd7 Nhf4+ Kf7 Re1 h3 Ng6 Ke6 Bc6 h2 B6a4 h1N Bab3 Ng3 Re2 Nf1 Re1 Rd8 Re2 Kd7 e6+ Kc8 e5 Bg1 Re3 Bd7+ Kh7 Qc5 e7 Nd1 e8Q Rf6 e6 Bh2 Nb7 Qd6 Nc3 Ne5 e7 Nb2 Kh8 Nec4 Qc1 Bb5 Rb1 a1Q Re2 Qaa6 Na5 Bdf4 Qe1 Ba4 Rd1 Bc6 Rd5 Ba4 Re6 Be3 Rde5 Bb5 Qb1 Ba4 Nc6 Kb7 Na5+ Ka7 Bb8+ Kb6 Nd5+ Kc5 Bc7 Kd4 Ndf4 Qdb6 Nh5 Rd5 Qd7 Kc3 Qb5 Rf7 e8N Rd8 Re7 Qd6 Qc5 Bd7 Qa3 Bb5 Qa4 Rf6 Bb6 Ra8 Bd8 Ra7 Nc7 Be8 Nd5+ Kd4 Ndf4 Rd7 Bc7 Kc3 Nd5+
BNBQ2n1/K1PQ1q1R/1Q1b2qb/n6N/4n1p1/n2kN2q/2R4Q/6rn b - - 0 1 legal: proof: d4 a5 b4 c5 f4 cxd4 Qd2 e5 Qd1 exf4 a4 b5 axb5 a4 Nh3 Ra6 Ng1 Ra5 bxa5 f5 Qd3 h6 Qd1 Bb7 Bd2 f3 g4 Be4 Bg5 hxg5 Nh3 f4 Ng1 Bf5 gxf5 Be7 Nc3 Bd6 Nb1 Bf8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 e4 g4 h4 g5 f6 d3 a6 d2 f7 f2 b6 d5+ Kb5 Kd4 c4 f3 h5 a3 c5 a2 b7 g3 a7 g2 a8B g4 c6 Bd6 f8Q Qg5 Kb6 Qg6 c7 Nc6 b8N Na5 Nh3 g1B Qb3 d1N e5 Nc3 h6 Ne4 Ba6 f1Q h7 f2 Nf4 Qh3 e6 f1Q e7 Be3 Nh5 Bh6 e8Q Qff7 Nc3 Ke3 Qd8 d4 Qfe8 d3 Ka7 d2 Bc8 d1N Qed7 Kd3 Rc1 a1N Qb6 Nc2 Nd5 Ndf2 Ne3 Na3 Rh2 Nh1 Rc6 Ngf6 Rcc2 Rf8 h8Q Ng8 Qe5 Re8 Rhe2 Re6 Qh2 Rf6 Rg2 Rf1 Rgf2 Rg1 Rf6 Qe6 Rf7 Qa2 Rg7 Qaf7 Rh7
b2Nrk1N/Q4Bnq/8/4pB2/1q1n4/1qrR1BN1/PB1pR3/bQ2nK2 b - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 gxh5 c5 b4 axb4 f5 c4 e4 f6 dxe5 c3 e6 Ne7 e5 fxe5 Nxc3 Ng8 Nb1 Qc7 Qd5 Qd8 Qa5 Qg5 Qd8+ Qxd8 c4 b5 h4 d5 h6 g5 e7 b3 f6 b2 c5 d4 h5 g4 c6 b4 h7 g3 c7 b3 h6 g2 Nf3 g1N Rh2 d3 Bg2 Ra5 Kf1 Qd6 Nd4 Nf3 Ne6 Nc6 Nd2 b1Q Nd8 b2 Ne4 Bb7 c8B Rc5 Ng3 Ne1 Bf5 Rc3 Bf3 Nd4 Re2 Qc2 Rb1 Ba8 Ra1 b1Q Bb2 Qbd1 Rb1 Qb3 Ra1 Qdc2 Rd1 Qdb4 Rdd2 Qe6 f7+ Kd7 e8B+ Ke7 Bh3 Nf6 Bf5 Nh5 Rd1 Rg8 h8Q Ng7 Qh7 Qeb3 Qg6 Qb1 h7 Q1c2 h8N d2 Rc1 Qd3 Qa6 Qe4 Qd3 Qh4 Qb1 Qh7 Rc2 Kf6 Rc1 Bc5 Rc2 Ke7 Rc1 Rc4 Rc3 Kf8 Rd3 Rc3 Bb5 Ke7 Bc4 Re8 Bcd5 Kf8 Bc4 Nde6 Bcd5 Bd4 Bc4 Ke7 f8Q+ Kd7 Qc5 Rc1 Qc8+ Ke7 Qd7+ Kf8 Ba3 Ba1 Bb2 Rc3 Qa7 Nd4 Bf7
N1Qk4/1K5p/2pPqqB1/1bR2b2/QN1qB1r1/NRB5/1b4Br/6nq b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 h4 g5 g3 Nc6 Qb3 Nd4 Qd1 Ne6 Rh2 g4 Rh1 Ng5 hxg5 fxg3 b4 a5 d4 f5 Kd2 g2 Ke3 f4+ Ke4 c3 g6 g3 b6 a4 b5 c2 b7 a3 b8Q f3 g7 a2 b6 f2 b7 Be6 d5 Ra3 d6 Qc8 Bd2 c1Q Nf3 g1R Bg2 f1B Ne5 Qc5 Rh5 Qc1 Nc4 Qd8 Nb6 Ne7 g8B Nf5 Bc3 Nd4 Rc5 Qc8 Qa4+ Kd8 Na8 Bf5+ Kd5 Bg7 e4 Bb5 e5 Ne2 e6 Be5 Be4 g2 Bf7 Rb3 Bg6 Rb2 Na3 Rg8 Rb1 a1Q Qb4 Ra2 Rb3 Qg5 Qa4 Qf6 Qd4 Rc1 Qa4 g1Q Bg2 Qh1 e7+ Kd7 e8B+ Kd8 Bc6 Ng1 Qba7 Qd7 b8N Re2 Be4 Rh2 Na6 Rg7 Nb4 Qe8 Be1 Bb2 Bd2 Rc4 Bc3 Rg8 Bg2 Rg4 Bb7 Qd7 Qb8+ Qc8 Rc4 Rh8 Kc5 Re8 Bbe4 c6 Kb6 Qd1 Rc5 Qdd4 Qb7 Qce6 Qb8+ Kd7 Ka7 Rc8 Kb7 Kd8 Qxc8+
rq1Q3k/p1qQ2NP/3n1rR1/3qp1q1/2R3Bb/KNQb1N2/Q3r3/B7 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 b4 c5 b6 cxb4 b7 Bd7 Na3 Na6 Nb1 Rc8 b8Q Nc7 Qb7 Na8 Qxa8 Rc6 h4 Kf7 f4 g5 d4 Kg7 Kd2 e5 d6 g3 d5 g2 f5 g4 f6+ Kh7 h5 g3 h6 b3 f7 b2 Ra6 Bg4 d7 Qb8 d8N Nf6 d6 Qb6 d7 Qc5 Qc8 Be7 f8Q Bf5 Ne6 Ne8 d8Q Nd6 Be2 Bh4 Nf3 g1Q Ng7 g2 Qf7 Rf8 Qd5 Kh8 h7 Qgf2 Qa2 g1Q Qe1 Qfg2 Qcd7 e3+ Kd1 Rg8 Nbd2 b1Q Nb3 Bd3 Ra4 Qa5 Rc4 Qc7 Rh2 Qg5 Rg2 Qh1 Rg1 Qb2 Bd2 Rb6 Bc3 Rf8 Rgg4 Rb8 Rg1 Ra8 Qd2 Qhg2 Qc1 Qb1 Ba1 Qb2 Qc3 Qh1 Nbd4 Qbb8 Kc1 Qhg2 Bd1 Qh1 Nb3 e2+ Kb2 e1R Ka3 Re2 Ne1 Qd5 Nf3 Qh6 Rg6 Qg5 Nfd4 Re1 Bg4 Re2 Ne8 Rf4 Nf3 Rf6 Ng7+
1Q2bB1K/1nN1B2p/3R2P1/1R1q4/1rrkQ3/1Q5N/r2p2nQ/n1nr3N b - - 0 1 legal: proof: h4 a5 a4 g5 d4 gxh4 b4 c5 bxa5 cxd4 e4 b5 a6 f5 exf5 e6 a7 Nf6 a5 Bc5 Bc4 Bb6 axb6 Ng8 b7 Kf8 Be2 Ke7 Bh5 Kf8 Be8 Kxe8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 d5 f4 d3 c4 d2 g4 d4 g5 b4 f6 b3 g6 b2 f7 d3 f8N h3 f5 h2 f6 Nh6 f7 Qd5+ Kf6 e5 Kg7 e4 Qh5 d1R Ra5+ Kd4 c5 e3 c6 e2 c7 e1N Rb5 Ng4 Bg5 Nd7 b8Q Nc2 Be7 Nge3 Nc3 b1R Nh3 Ng2 Ne4 Na1 Ng3 Rb4 Re1 h1N Re6 d2 Rd6 Ba6 c8Q Nf2 Nh1 Nc5 Qcb7 Nfd3 Qe2 Nc1 Ne6+ Kc3 Nc7 Kd4 Qb6 Rc8 f8B Bb7 Qh5 Bc6 Kh8 Be8 Q6b7 Kc4 Qb6 Nb7 Qe5 Kd3 Qh2 Kc3 Qe3+ Kc4 Qb3+ Kd4 Na6 Rcc4 Nc7 Ra4 Qc8 Rb8 a8Q Rab4 Qaa4 Ra8 Qb8 Ra7 Qb1 Ra6 Qab3 Ra2 Qe4+
2R5/1bK2kNQ/b2PBB2/1rp1q1b1/1Qr4R/b1B5/N1prBR1q/6b1 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 hxg4 c4 dxc4 f4 e5 b6 exf4 b5 Na6 b7 Ke7 Rxa6 Nf6 b6 Ne4 Ra1 Nf2 Kxf2 Kd7 Ke1 Ke8 Kf2 c5 b8Q f5 e4 a5 h4 g5 d4 c3 b7 a4 e5 g3+ Kf3 g2 e6 a3 h5 a2 h6 c2 h7 Qc7 d5 Ra5 e7 Qe5 d6 Rb5 Bb2 Bh6 Be2 Kf7 Nh3 g1Q Nc3 Qh2 Qd3 Re8 Rag1 a1B h8B Rg8 Rg2 g4+ Kf2 g3+ Kf3 Rg7 Rf2 g2 Na2 g1B Bc3 Rg2 Bf6 Bg5 Qe4 Bb2 e8B+ Kf8 Qb4 Ba3 Bd7 Kf7 Qa8 Rg4 b8R Rg2 Qae4 Bb7 Rc8 Rg4 Bf1 Rh4 Ke2 f3+ Kd3 f4 Kc4 Rg4 Be2 Rh4 Rf1 f2 Qd3 f3+ Nf4 Rh8 Ne6 Rh4+ Qe4 Rg4 Ng7 Rg2 Qh7 Rg4+ Kb3 Rh4 Ka4 Rc4 Rd1 f1R Rd2 f2 Bf5 Rb6 Ka5 Rd1 Bfg4 f1B Bd7 Qg2 Rh4 Qgh2 Bf5 Bh1 Bd7 Rb5+ Ka6 Bb7+ Ka7 Bfg2 Kb8 Ba6+ Kc7 Bh1 Beg4 Bf3 Rf2 Bfb7 Be2 Rd2 Be6+
1NB2k1b/p5rQ/r3rR2/1q5q/1RQpBrNr/3B2Nb/4KP2/1qN5 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 a5 fxe4 a6 d6 axb7 Be6 Qd2 Na6 Nh3 Rc8 Qd1 Rc6 Ng1 Nc7 h4 Rb6 g4 Bf7 g5 Nf6 h5 Kd7 g6 Be6 Bh6 Ke8 b8Q gxh6 Qa8 Nd7 Qc8 Rc6 Qa8 Ne5 g7 Ng6 hxg6 h5 Qb7 Na8 Qxa8 h4 g8N h5 b4 h3 c4 d3 g7 d2+ Ke2 h4 b5 h2 c5 d5 b6 e3 b7 d4 b8N h3 Qc2 d1R Na6 Qb8 Qa2 Rh4 Qa3 Rf4 Qd3 Kf7 Qc2 Qb5+ Qc4 Rd3 Nb8 Ra6 c6 Rc3 Ke1 e2 c7 Rg3 c8B Rg2 Kd2 e1R Nh6+ Ke8 g8B Bg7 Be2 Kf8 Ra4 Bh8 Qe4 Rg7 Rb4 Bf5 Kd3 e5 Bd5 Be6 Qh7 e4+ Kd2 e3+ Kd3 Bg4 Nd2 Bd7 Bf1 e2 Be4 Bg4 Nb3 Be6 Nf3 Bg4 Rg1 h1R Ng5 h2 Nc1 Bh3 Rg2 Rg1 Ng4 h1Q Rg3 Rg2 Rf3 Rg3 Ne3 Rg4 Kd2 Rh4 Ng4 Rff7 Rf6 Qh2 Bd5 Qe5 Ne4 Qh5 Re6 Rf3 Ng3 Rf4 Be4 Rd1+ Kc2 e1Q Bfd3 Qg1 Rh6 Re1 Kd2 Re3 Bh1 Ree6 Bhe4 Qh1 Ke2 Qg1 Na2 Qa1 Nc1 Qb1 Rf6+
4rn2/2N1q3/N1ppQBR1/1b2p1b1/NR2k1r1/1b4B1/QPr4N/nQ2K3 b - - 0 1 illegal: No possible last move
N4k2/1B1pr1Qn/qp3bRR/n4Kn1/R2Q1B2/p4p1P/1Q1RN3/5n1n b - - 0 1 illegal: No possible last move
1N1br1Rq/1p3b2/p3bR2/3B1p1p/4r1PQ/Nq2kr2/3B2Q1/K2BB2R b - - 0 1 legal: proof: b4 d5 h4 c5 c4 cxb4 f4 Nc6 h5 Nd4 h6 gxh6 f5 h5 f6 Nb3 axb3 h4 cxd5 Nh6 Ba3 Ng4 Qc1 Ne3 Qd1 Nc4 bxc4 exf6 Bb2 f5 Bc1 f4 e4 Kd7 d4 Kd6 Kd2 h5 Kc2 f5 Kb2 b3 g4 h3 e5+ Kd7 c5 h2 d6 Ke6 d7 Kd5 c6 Ke4 d5 f3 d6 f2 e6 Rg8 c7 Rb8 e7 Bh6 e8R+ Qe7 d8Q Qe6 d7 Qe7 Qd2 Be3 Be2 f1R Na3 Bb6 Nf3 Ra8 Ne5 Qg7 Bd1 Rf3 Qg2 Qh8 Bd2 a6 Qh4 Ba5 d8B Be6 c8B Rf8 Kb1 b2 Nd7 Rg8 B8g5 Bd8 Be1 Rg7 Nb8 Re7 Bgd2 Bf7 Ba5 Ke3 Rg8 Re4 Bd7 Be6 Bc6 Bf7 Bd5 Be6 Rf1 h1B Rf2 Bf7 Rc2 Be6 Rc6 Bf7 Rf6 Be6 Kc2 b1Q+ Kc3 Qd3+ Kb2 Qc4 Rc1 Qb3+ Ka1 Bf7 Qgh3 Bg2 Bab4 Bf1 Ba5 Bb5 Qg2 Bd7 Rc2 Bde6 Rf2 Ref4 Rf1 Re4 Rh1 Be7 Nd7 Re8 Nb8 Bd8 Bad2+
b2N1k1N/2KBb3/3p1R2/5pb1/1BpB2Q1/Rq1pp1PN/b1B2rq1/2Q5 b - - 0 1 legal: proof: b4 b5 c4 bxc4 a4 g5 h4 gxh4 b5 a5 b6 c5 d3 cxd3 Bf4 Ra7 Bd2 Rc7 Bc1 Rc6 e4 Rd6 e5 Rd4 e6 d6 Rh3 Rb4 Rh1 Rb5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 f3 Nf6 Bg5 Ne4 Be3 Nd7 Bc1 Bh6 exd7+ Kf8 Ra4 e5 Ra1 Ke7 Ra3 Nf6 Ra1 Bf8 f4 e4 Nf3 Ng4 Ng1 Ne5 fxe5 Ba6 Rh2 Bb7 Rh1 Bc8 Kd2 h5 Ke3 f5 e6 c4 Kd4 e3 Kd5 h3 Kc6 h2 b7 a4 b8Q a3 g3 a2 b6 h4 b7 h3 Ba3 Rh6 Bb4 Rf6 Qg4 Rh6 Be2 Rg6 Nc3 Rh6 Ne4 Qa5 d8N Qb5+ Kc7 Bd7 Bd1 Qa4 Qa8 Qb3 b8B Ba4 Bc2 Ke8 Qb7 Be7 Ba7 Kf8 Ng5 Rh5 Bd4 Rh7 Rc1 a1B Ngf7 Bc3 Nh8 Rh6 Bdc5 Bcf6 Bd4 Bg5 Ra1 Rh7 Qbe4 Rh4 Qd1 Rf4 Ra3 Rf2 Qf1 Qb2 Qa1 Bb3 Qg4 Ba2 Qc1 Qc3 Ne2 Qb3 Nf4 Bef6 Rd1 h1Q e7+ Kg7 e8B h2 Rg1 Kf8 Bd7 Qg2 Nh3 h1B Rd1 Be7 Rf1 Re2 Rf4 Rf2 Re4 Qg1 Re5 Ba8 Re6 Qg2 Rf6+
3qqQ2/qN1qq1P1/2b1n3/1R3RQq/2n2q2/RBr4b/Q5rQ/NB3k1K b - - 0 1 legal: proof: b3 h5 Nc3 g5 Nb1 h4 Bb2 h3 Be5 e6 Bg3 e5 Bh4 gxh4 c4 d5 f4 dxc4 Qc1 exf4 Qd1 Bc5 Qc1 Bf2+ Kd1 Bg3 hxg3 Rh7 Ke1 Rh6 Qd1 Rh8 b4 a5 bxa5 Be6 Qc1 Bf5 Qd1 Bc8 Kf2 Kd7 a4 Kd6 e4 Ke5 a6 Kd4 d3 f5 a5 c5 e5 b5 e6 b4 g4 f3 g5 c3 g4 b3 g6 f4 e7 b2 e8R c4 a7 h2 g7 c2 g5 c1Q a6 h3 g6 c3 Re2 c2 Re5 Qd2+ Qe2 c1Q Rf5 Qcc7 Rf7 Nf6 g8Q Nd5 g7 Nc6 Na3 b1Q Qh7 Na5 Nc4 Qba2 Nd6 Qce7 Rf5 Nc7 Nb7 Ne6 Qh4 Qaa3 Qg5 Nc4 Bg2 Qa4 Ra3 Qae8 Kf1 f2 Bd5 Rb8 a8Q Qdd7 Qeh5 Ke3 a7 Qa5 Qhh4 Qad8 Nf3 Rh6 Be4 Rg6 Nd4 Kd2 Rg1 h1Q Nc2 h2 d4 Qf3 d5 h1B d6 Qh5 Bd3 Bc6 Na1 Kd1 Be4 Kd2 Kg2 Ke2 Qh3 f1Q+ Kh1 f3 Qh2+ f2 Bd5 Qfh3 Rb1 Qe3 Rb5 Kf1 Be4 Q7c7 d7 Qeh3 Qd2 Rg2 Bb1 Q3g4 Qa2 Qa5 Nc5 Rb7 Qb8 Rc7 a8B Qa7 Nb7 Nc5 Bc2 Bf3 Ba4 Nb2 Bb3 Q8f7 Qb1+ Ke2 Nc2 Qdf8 Rf4 Rc6 Qg1 f1Q Qe5+ Be4 Qg5 Qff3 Qe3+ Kf1 d8Q Q7g8 Rf6 Qff4 Nd6 Qd1 Qeg3 Bh3 Na1 Ne6 Rff5 Rc3 Qb8 Bf3 Be4 Nc4 Bb1 Bc6 Nb7 Qdd7 Qe3 Qfc8 Qd2 Qcc7 Qe8 Qcd8 Qa2 Qgf7 Qh8 Qfe8 Qf8
3K3Q/1k2NQ1n/rr1QR2N/8/1b3qPR/b2bq2B/2n4B/N1qqN1qq b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 f5 d4 h5 g4 c5 e4 Kc7 e5 b3 b6+ Kb7 e6 h3 d6 b2 e7 h4 e8Q h2 d7 h3 d5 c4 d6 c3 Qe7 c2 Bd2 c1B Qh4 Nf6 Qh7 Nc6 Ra6 Qe7 d8Q Nb4 d7 Nc2 Qf7 Nh7 Na3 b1Q Be3 Bb2 Qd6 Qc1 Bf2 Bc3 Bg3 Bb4 Bg2 Qe5 Q8f6 Rg8 Qh8 Rg6 Bf1 Ra7 d8N+ Ka8 Ra5 Ra6 b7+ Ka7 b8N+ Bd7 Qd3 Rb6 Qd6 Ka8 Ra4 Bb5 Nbc6 Bd3 Ne7 Qd4 Ra5 Ka7 Re5 Ka8 Ne6 Kb7 Ng5 Qc5 Re6 Qc3 Kf2 f3 Be5 Qb3 Kg3 f4+ Kh4 f2 N1f3 Qd1 Ne1 f3 Bg2 f1Q Kh5 Qg1 Bf4 Bb5 Kg6 Qbe3 Bf1 f2 Be5 Nd4 Nac2 Ba3 Na1 Bd3+ Qf5 Nc2 Kf7 Qdc1 Ke8 Bb4 Kd8 Ba3 Be2 f1Q Nf7 Qff4 Nh6 Qd1 Qf7 Qdc1 Ng2 Qgd1 Bf1 Bb4 Rg1 h1Q Ne1 h2 Bh3 Ba3 Rg3 Qhg1 Rg2 h1Q Rf2 Qb4 Bh2 Qbf4 Rd2 Bg7 Rg2 Bc3 Rd2 Bcb4 Rf2 Qfd4 Rf5 Qef4 Rh5 Qde3 Rh4
b3n2K/QNn5/1N1rRnr1/4rR2/1kBb1P2/rNb2b2/1qb3B1/BQ3B2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 e5 d4 exd4 e5 f6 Qc2 f5 Qe4 fxe4 Ke2 Kd7 b4 a5 g4 c5 f4 h5 d6 c4 b6 Kc6 e6 Kb5 d7 d3+ Ke3 d2 Kd4 d1R+ Ke5 e3 g5 a4 e7 a3 e8B a2 b7 h3 g6 h2 g7 e2 Bh3 e1R+ Be3 c3 Bg2 h4 Ne2 h3 Kf5 c2 Kg6 c1N Kf7 Na6 b8Q+ Qb6 Bd4 Nf6 g8B Bc5 Kg7 Nb3 B8d5 Na5 Nd2 Nb7 Nc4 Nc7 Qa7 Nd6 Nc1 Re5 Nb3 Rh6 Re1 Rg6+ Kh8 h1B d8N+ Bd7 Nb7 h2 Rb1 a1B Bf1 Bc3 Bdg2 Rd3 Re2 Rd8 Rd1 Bc6 Re4 Rd7 Bf7 Nde8 Ree1 Be4 Be6 Qa6 Nb6 Rd6 Rd2 Qa2 Bc4+ Kc6 Rde2 Qb2 Ra1 Rf3 Ra5 Bc2 Rb5 Rf5 Re6 Re5 Bh3 Rfe3 Ra5 Bf3 Bhg2 h1B Rb5 Be1 Bc3 Bd4 Ra5 Qb1 Ba1 Bec3 Rd5 Qb2 Ra5 R5e4 Rf5 Rd3 Na8 Re5 b5+ Kd7 b6 Kc6 N7c5 Rde3 b7 Rd3 b8Q Rde3 Bce2 Rd3 Nb6 Kb5 Nb7 Kb4 N7a5 Ba8 Nb7 Rf3 Bc4 Rfe3 Bh3 Bf3 Bhg2 Ra5 Qd8 Ree5 Qd7 Ra4 Qc6 Ra3 Qe4 Raa5 Qe1 Ra3 Qb1
5Nq1/Q3RN2/1Q2Nkbq/1b3bRq/2P4n/N2B3b/b1KR3r/4rbnB b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 h4 g3 Be3 Qe7 Bf2 gxf2+ Kd2 Qa3 g4 Qc5 g5 Bh6 g6 Bg5 hxg5 Qf8 Rh2 Qe7 Rh1 Qd8 b4 Ke7 e4 f5 e5 d5 g7 a5 e6 h5 g6 a4 c3 h4 b6 d3 b5 h3 b7 f3 b6 f4 Qb3 a3 Qa2 h2 Nh3 d4 Ng1 Kf6 e7 Nc6 e8R Nge7 b8N Nf5 g8Q Ne5 g7 Nh4 b7 Bf5 Kc1 d2+ Kd1 Ra7 Qc2 a2 Bb5 f1B Ne2 f2 Rg1 h1Q Ba4 f3 Qb2 B1h3 Nf4 f1B Bb5 f2 Nc6 Nef3 b8N Re7 Rg5 Ng1 Bd3 Re1+ Kc2 Rh5 Ne6 d1B+ Kd2 Bc2 Ne5 Be2 Qh7 f1B Re7 Qg8 Na3 Bb3 Rc1 a1Q Rd1 Ba2 Nf7 Qb1 Qb6 Qb5 Kc2 Qe5 Be4 Bb5 c4 Qf4 Rd2 d3+ Kc3 Qhh2 Bh1 Qg4 Nf8+ Qd6 Na6 Rh6 Nc7 Qh5 Nce6 Bg6 Rh2 d2 Rhg2 d1B Rd2 Bdg4 Kb2 Qh8 g8B B4f5 Kc3 Re4 Kc2 Qb8 Nfd8 Qf4 Bf7 Qg8 Be8 Qd6 Nf7 Qf4 Bc6 Re1+ Bce4 Qd6 Bd3 Qf4 Re8 Qh2 Ne5 Qf4 Qha7 Qe3 Re7 Rh7 Rg4 Qeh6 Rg5 Rg7 Rd7 Re7 Nc7+ Re6 Re7 Re2 Nf7 Rh2 Qe3 Re5 Nce6 Re4 Qec5 Re1 Qcb6
Bn4R1/3k4/1bqQ1n1P/2q1nnB1/rN1rn3/1K2b3/1B1RR3/B2NnQr1 b - - 0 1 legal: proof: d4 b5 h4 e5 g4 c5 f4 cxd4 a4 exf4 axb5 g5 Rh3 h5 Rh2 Bb7 Rh1 Bf3 Rh3 gxh4 Rh1 h3 Ra3 h4 Ra1 Be4 Nc3 Bg6 Nb1 Bh5 gxh5 Be7 Kd2 Ba3 Ke1 Bf8 Kd2 f5 b4 d5 c4 a5 Kc2 h2 e4 h3 e5 f3 e6 f2 c5 a4 e7 d3+ Kc3 d2 c6 d4+ Kc2 d3+ Kb2 a3+ Kb3 a2 b6 f4 c7 f3 c8Q Bh6 b5 Nf6 b7 Ra4 b6 Be3 h6 Rg8 Qdc2 d1N Ba3 d2 Bg2 f1N Ne2 f2 Q2c5 Nc3 Rg1 h1Q Qc4 d1R Nc1 h2 Nd3 Ng3 Nb4 f1N Bb2 Nce4 Nc3 Rd4 Rd1 a1B Rd2 Nf5 Nd1 Rg5 Q8c5 Kd7 e8R Qc7 Qf8 Qc5 Bf3 Rg7 Rgg2 Rg8 Rge2 Rg1 Rc8 Qg2 Re8 h1N Rc8 Na6 b8B Nh2 b7 Nhg4 Be5 Nhf2 b8B Nd3 Bf4 Qh1 Bg5 Ne1 Be5 Nb8 Qa6 Nh7 Bh8 Nhf6 Qd3 Ne5 Re8 Nf2 Ba8 Qhc6 Qc4 Rd5 Qf4 N2e4 Qf1 Rd4 Re6 Ng8 Rg6 Ngf6 Rg8 Rd6 Rh2 Nf7 Qh3 Qa5 Bd4 Nh7 Bhe5 Nhf6 Qf1 Qab5 Bb6 Bad4 Rhe2 Bc5 Bc7 Bb6 Ba1 Rd5 Bg3 Qbc5 Bge5 Rd3+ Bec3 Rd4 Bcb2 Ne5 Qd6+
rN3b1R/3R1K1b/1b1P1B2/5r1n/3Qk1n1/n1n1NRq1/1b1r1QB1/b4BB1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Ke7 d4 Kf6 e4 c5 h4 g5 h5 b3 e5+ Kf5 h6 g3+ Kf3 c4 b6 g2 b7 c3 e6 b2 e7 c2 e8B g4+ Kf2 g3+ Kf3 Qd6 h7 Nc6 b8R Na7 Rh3 Nh6 Be3 c1B Bc6 Nb5 Qd2 Nc3 Qf2 Ng4 Na3 b1N Nc4 Bb2 Ra7 Na3 Ne2 g1B Rd7 g2 Rb3 Rg8 h8Q Bh2 Qhh4 g1B Qe7 f6 Rh8 Rg5 Kg2 f3+ Kh3 Be5 Kh4 Ke4 Bb7 Rg8 Kh5 f5 Bc6 Qc7 Qc5 f4 Bb7 Beg7 Kg6 Be5+ Kf7 Rg5 Re7 Bf5 Rd7 Bh7 Bc6 Bf6 d6+ Rd5 Bb7 Kd3 Bc6 Rf5 d5 Ke4 Nd4 Ba1 Qh2 f2 Bb7 f3 Nc6 Bb2 Nb8 Ba1 Bd4 Bb2 Ne3 Ba1 Bg2 f1R Ba6 Rd1 Baf1 Rd2 Qg3 Bg5+ Bf6 Bf4 Qf2 Be5 Re7 Bb2 d7 Qd6 d8B Ba1 Rc7 Bd4 Qh4 Qg3 d6 Bf2 Rd7 Bg1 Bh3 f2 Bb6 Bb2 Bc4 f1N Bg2+ Qf3 Qh2 Ng3 Bcf1 Nh5 Qh4 Bh2 Qf2 Bhe5 Qa5 Bc5 Ba7 Bb6 Qc5 Bd4 Nd5 Nd1 Qb5 Bc1 Qh4 Bc7 Qc6 Be5 Bg1 Bb6 Qc5 Ba1 Qhf2 Bcb2 Rc3 Rf4 Rd3 Nc3 Re3+ Kf5 Rd3 Qg3 Rf3 Ke4 Ne3 Rf5 Qd4+
2N1N3/1K4b1/P2q2bk/Bnr1nb1N/1nr1Q3/3n2QN/1R1RbB1n/Br6 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f6 Be2 f5 exf5 gxf4 g5 Nd7 Bf3 Nb8 Bg4 hxg4 Ke2 Kf7 Kd3 Kg7 Kd4 b5 Kc5 e5+ d6 f3 a4 g3 h4 b3 d4 c6 g6 b2 d5 g2 h5 b4 a5 b3 a6 e4 Be3 f2 Nc3 f1N Rh2 b1B Qd3 b2 Bf2 e3 f6+ Kh6 f7 e2 g7 e1R Nce2 Bf5 Nh3 g1N Ra2 Nf6 g8Q Nf3 Qg3 Ng4 Nef4 Nd4 Qe4 Bg7 f8N Nb5 d7 Ne5 d6 Bd3 N8g6 b1B Ne7 Be2 Nc8 Ra7 Rc2 Rc7 Kb6 c5 Rd2 c4 Rb2 Qf6 d8N c3 Nb7 Nbc6 d7 c2 d8B c1N Nbd6 Ncd3 Ne8 Qd6 Rg2 Nh2 Rd2 Kh7 h6 Rc1 Nh5 Rc4 Ng5+ Kg6 h7 Kh6 Nh3 Rf8 h8B Ncb4+ Ka5 R7c5 Rb2 Qd5 Kb6 Qd6+ Kb7 Bg6 Ba5 Bc2 Bg1 Rf1 Bd4 Rb1 Rf2 Bg4 Rd2 Bcd1 Bf2 B4f5 Bd4 Be2 Bf2 Bf8 Bf6 Bg7 Rbc2 Neg4 Ba1 Nge5 Rb2
1rQ4K/1n1RB3/Rqn1nQPB/1qB5/bq3R2/Nb1k4/5R2/2q1rnNn b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Qf6 Kd2 Qe7 Ke1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 f5 e4 h5 c3 a5 g7 d5 g6 f2 b6 f1N b5 h4 b7 h3 b6 d3 Qc2 d2 Ra3 d1B Bb2 a4 Ra1 h2 Qf2 f3 Qg2 f4 Ne2 a3 Ng1 d4 Qg5 f2 Qf6 f3 Bc1 d3 Bh6 Na6 b8B a2 b7 d2 Bd6 Bb3 b8B d1Q Be7 Bd7 Ba7 Qb6 Na3+ Kd3 c4 Rb8 c5 Qc1 c6 Nc5 c7 Ne6 c8Q Bda4 Kf5 Qd2 e5 Qdb4 Rd1+ Nd2 Ra1 f1Q Rd1 Nc7 e6 a1Q Kg5 f2 Kf5 Q6b5+ Bac5 Qad4 Ra1 Qc1 Ra2 f1N Rc2 Nc4 Rf2 Nb2 Bd8 Qdc3 Be3 Nd2 Kg5 Bd1 e7 Qb6 Nf3 Qcc4 e8R Qc6 Rhf1 h1N Ng1 Q4e6 Rh2 Qcb5 Re7 Qeb6 Rh4 Bdb3 Rf2 Nf1 Re6 Qa7 Ra6 Ne7 g8R Qab6 Rg7 Re8 Kh6 Nc4 Kh7 Na5 Bh6 Nec6 Rhf4 Re1 Kh8 Ne6 Re7 Nb7 Rd7+ Qd4 Bde7 Qd6 Bd4 Qdb4 Bdc5+
bK1QBR2/8/1n2PN2/bq1B1b2/1k1r2B1/1B2Q3/b1n3n1/NqnbRQr1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 Ba3 exf4 axb5 Be7 b6 Bc5 b5 Bf8 Bb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 c4 d5 g4 b3 g6 h4 g5 f3 b7 d3 b6 f4 g7 d4 g6 b2 Bh3 f2 Ra4 f1B Rb4 d2 Rh2 d3 Nc3 b1Q Rf2 f3 Nge2 Ra4 Bd7 h3 Nd4 h2 Nc2 h1B Na1 Ne7 g8B Nf5 g7 Nd4 Be8 Qd7 Nd5 Nc2 Nf6 Qb5 Bd5 Bf5 g8B Be2 Bge6 Rg8 Qf1 d1N Rb3 d2 Re3 Kb4 c5 Bh6 Kd6 Nb2 Kc7 d1B e5 Bc4 c6 Rg1 Re1 Nd7 b8Q Ba2 b7 Bd2 Qd8 Nd3 b8Q Nb6 Qa7 Nc1 Kb8 Bg2 c7 Bc3 Rfe2 f2 c8B Bge4 Bb3 Ba8 Bed5 Bd2 Re3 Bc3 Rf3 Bd2 Qd3 f1N Rf2 Nfe3 Qf1 Ng2 Rf3 Bg6 Bg4 Bf5 e6 Ra3 Bbc4 Rd3 Bb3 Rd4 Qh7 Ka3 Qh6 Ba5 Qe3 Kb4 Ng8 Bd3 Rf8 Bf5 Nf6
5QB1/5bK1/RB2QQ2/rnnrq1N1/k1bq1qR1/3n1nQ1/7P/N2rBq2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 a5 Nc3 h5 Nb1 hxg4 b3 a4 b4 Bd6 Qd2 Bc7 Qd1 Ba5 bxa5 Qf6 Nf3 Qg5 Ng1 Qd8 Kd2 d5 Kd3 Kd7 c4 g5 e4 f5 c5 f3 a6 a3 e5 g3 a7 f2 b6 Kc6 e6 Kb5 e7 g4 e8Q+ Nc6 b7 f4 b8B f3 Qe6 g2 Qb3+ Nb4+ Kd2+ d3 Ke3 g3 Kd4 a2 Ke5 d4 c6 Nf6 c7 Qd6+ Kf5 Nd7 Kg6 Rh5 Be3 Nc5 Qd5 Ka4 Qg5 d2 Ne2 d1R Bc1 g1Q Qef6 g2 Bd2 d3 Na3 Be6 c8Q Bf7+ Kg7 Qf4 Be1 d2 Qce6 Nbd3 Qg3 Rf5 Nd4 Rd5 Be2 f1B Bc7 f2 Bg4 Be2 Nf3 f1Q Nc2 Qgd4 Bb6 g1N Ng5 Nf3 Rg1 Qde5 Bf5 Qed4 Bh7 Qde5 Rb1 a1Q Bg8 Qad4 Rb2 Nf2 Rb1 Bc4 Na1 Nfd3 Rb3 Rb1 Rb2 d1N Rd2 Nc3 Ra2+ Kb5 Ra6 Rd1 Ba5 Ka4 Rg2 Rb8 a8Q Rb5 Bb6+ Ra5 Qf8 Nb5 Qh4 Qde3 Rg4 Q3d4 Qg3
q1BK1Rr1/1knnR2q/2b3b1/Qq2b3/1R2qN2/5NN1/Q1P1B2b/r2r2R1 b - - 0 1 illegal: No possible last move
3k1R1n/R2nN3/1r3bR1/qnRr2B1/3bBN2/qQb2P1N/3r1Q2/4bKn1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 Ra1 fxe4 h4 gxh4 b3 a5 b6 a4 Nd2 a3 Nb1 Ba6 Qg4 Bb5 Qd1 Ba4 bxa4 Qc8 Kd2 Qc7 Ke1 Qd8 g4 h5 c4 d5 g5 e5 f3 d3 a5 e3 b7 e2 a6 e4 a7 d2+ Kf2 e1B+ Ke2 a2 c5 d4 g6 e3 c6 h3 c7 h4 c8R h2 g7 h3 Qc2 d1N Rc6 Ne7 g8Q Nd7 b8R Nc3+ Kd3 e2 Rb5 Rb8 a8N Rh5 Re6 Rd5 Qg7 Qa5 Qf7+ Kd8 Qf6 Rb6 Qd1 Bg7 Rc5 Nb5 Bg5 Bc3 Qb3 e1B Ke2 Bh8 Qf5 Bf6 Qfc2 Ng6 Nc7 Nh8 Re7 Qa3 Rf7 Qa5 Qd2 Qa3 Qe3 Qa5 Qf2 d3+ Ke3 d2 Ke2 d1R Ne6+ Ke8 Nf4 Kd8 Rc4 Bd4 Nc3 Qa3 Rc7 Qa5 Rc1 a1B Ra7 Rd3 Na4 Bab2 Rc5 Rd1 Nc3 Ba1 Ne4 Bac3 Nd6 Qa3 Nf5 Rd3 Bg2 Rd2+ Kf1 Qa5 Ne7 Qa3 Nge2 Qa5 Rg1 h1N Qa4 h2 Qb3 Qa3 Bh3 Qa5 Bf5 Ng3+ Kg2 Qa3 Nh3 Qa5 Nef4 Ne2 Bb1 h1Q+ Kf1 Qh2 Rg2 Ng1 Be4 Qg3 Bh6 Qh4 Rg6 Qg4 Bg5 Qe6 Rc6 Qd6 Rcc7 Qdb4 Rc5 Qba3 Rf8+
NK1NQb1q/N1rBQn2/1n1n3R/R3q3/4Brq1/b1P2qB1/1Nr3k1/3n4 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 a5 Kd5 h5 e4 h4 b4 a4 b6 a3 b7 h3 b5 a2 b6 h2 Bd2 d3 Bc1 d2 e5+ Kg5 e6 Kh4 e7 f5 Kd6 f4 g5 f3 g6 f2 g7 Ra7 Qe1 d1N Ba6 f1R Nf3+ Kh3 Bb2 g1B Na3 g2 Bd3 Ne3 Be4 Nh6 Nd4 Rf4 g8B Qe8 Kc7 d5 Nc6 d4 Bb3 d3 Be5 d2 Nd8 d1N Be6+ Nef5 Nc4 Nd7 Nb2 Nf7 c3 Bc5 Kc8 g1Q b8Q Qg4 b7 Nb6+ Kc7 Rg8 Bd7 Ba3 Qa8 Rg6 Kb8 N5d6 Qe2 Rgf6 Qe1 Rf2 Bg3 Rc2 Qe3 Rf4 Qc5 Nh6 Qe5 Qh5 e8N Nhf7 Qe7 Qe5 Nc7 Qh8 Rc1 a1Q Rb1 Qa2 Ra1 Qae6 Ra2 Ra4 Ra1 Rc4 Qa4 Bb4 Na8 Rc7 Qb5 Qef5 Ra5 Ba3 Qbe5 Qe6 Qe8 Qef6 Q5e7 Qe5 Ka7 Rc8 b8N Rc4 Nbc6 Rc5 Bh7 Kg2 Kb8 Rcc4 Na7 Rc7 Rf1 h1Q Be4+ Kh3 Rg1 Qf3 Rh1+ Kg2 Rh6
R2n1Q2/qkNQ1r2/3rrN1r/1bb1P1R1/2b4B/2NQ4/nN1qqB2/b6K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 g5 d4 f5 e4 c5 e5 Kc7 d6+ Kb7 b6 a5 d7 c4 h5 g4 b5 a4 d5 a3 d6 a2 h6 f4 h7 c3 Rh3 f3 Rh5 f2+ Ke2 f1B+ Ke1 c2 Qd5+ Nc6 Qd3 Nf6 Rg5 Ra6 Nf3 g1R Nc3 g2 Kf2 Nd5 Nd2 Ndb4 Nc4 g3+ Kf3 Qe7 d8Q Bd7 Be3 c1Q Nb2 Qd2 Bf2 Qe6 Qe7 Qc4 Qd8 Be8 d7 Bc5 Qe7 Rh1 d8B+ Bd7 Qed6 Re8 h8Q g1Q Qhf8 g2 Qe6 Rh6 Qh3 Kb8 b7 Ree6 Bf6+ Kc7 b8N Nd8 b6+ Kb7 Be7 Bb5 Nd7 Rd6 Nf6 Qe4+ Kg3 Qee2 Qd7+ Ka8 Re1 a1B b7+ Kb8 Rb1 Na2 Rd1 Ka7 b8N+ Ka8 Re1 Re6 Rd1 Rad6 Na6 Bc4 Nc7+ Kb7 Be1 Qd4 Bf2 Bb5 Rb1 Qa4 Rc1 Qa7 Rc2 Rh7 Rc1 Rf7 Kh2 g1R Re1 Rg3 Kh1 Rg2 Rf5 Rg6 Rg5 Qg4 Re4 Qge2 Ra4 Rh6+ Rh5 Qb6 Ra8 Qa6 Nfd5 Qa7 Beh4 Qee3 Nf6 Be2 Qb1 Bec4 Qd3 Qee2 Rg5
1k4Nr/1nb1R1bn/2Pb1Br1/1nB3r1/3qQ2K/2RN1R1n/4R3/b2qQ2Q b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kf2 a5 c4 d5 h4 Kd7 e4 Kc8 b4 g5 b6 a4 c5 d3 e5 a3 f6 d4 f7 d2 c6 g3+ Kf1 g4 h5 a2 b5 d3 e6 f2 Kg2 f1R h6 Bd6 f8B Ra5 e7 Na6 e8Q Nf6 b7+ Kb8 h7 Nc5 Qde1 d1N Rh3 d2 Bb2 Nf2 Ne2 d1N Nd2 Nc3 Rc1 a1B Ne4 Rh1 Rh2 Nh3 Qe7 Rg8 h8Q Nh7 Nf6 Rg6 Ng8 Bc7 Rc2 Qd4 Qe4 Bd6 Nc1 Bc7 Qg1 Bd6 Nd3 f3+ Kf1 Bc7 Rhe2 g2+ Ke1 g3 Qhe5 Nb1 Rc3 Na3 Bd6 Rh2 Qh1 g1B Qe7 g2 Q7h4 Ka7 b8R Nb7 Rf8 Be3 Rf6 g1B b6+ Kb8 Bc5 f2+ Kf1 Bd2 Rf3 Bdf4 Qhe7 Bfd6 Q7e5 Nd8 b7 Nb5 Qe7 Rhg2 Q7e6 R2g5 Qe7 Bgh2 Q7e6 Bhg3 Kg2 Ra8 Q6e5 Bh4+ Kh2 f1Q Qg3 Re5 Qe1 Bg5 Kg3 Bh6+ Kh4 Bg7 Bc1 Rf5 Bg5 Rd5 Bf6 Rdg5 Qd2 Qc1 Qde1 Qd1 Ba3 Ka7 b8R Nb7 Re8 Rd8 Bb4 Kb8 Re7 Re8 Bc5 Rf8 Nh6 Rh8 Ng8
K2N2b1/2qb1QkB/Q2R4/1q2b1B1/1Q3b1R/qN1b1nP1/2R4R/1rb1nb2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g3 fxg3 Nf3 cxd4 Ng1 b5 axb5 g2 Nd2 g5 Ra2 a5 Kf2 g4 Ngf3 g1B+ Ke1 g3 Nb1 g2 Ra1 Ra6 Nc3 Rg6 Nb1 Rg3 hxg3 Qc7 Qd3 Qb6 Qd1 Qd8 Kd2 f5 Kd3 Kf7 Kc4 d5+ Kd3 h5 e4 f4 b4 h4 c4 a4 b6 a3 e5 a2 e6+ Kg7 e7 h3 e8Q h2 b5 Nf6 c5 Nh5 b7 Qc7 b6 Nd7 b8Q Be3 c6 g1B b7 Bd6 Qd2 Be5 Nh4 f3 Qb4 f2 Qb3 B3f4 Be2 f1B Qb6 Bge3 Nd2 Rg8 Rb1 a1Q Rb2 Qa3+ Nb3 Rf8 Ng2 Rf5 Rg1 h1Q Qa6 Qh4 Rh1 Qg5 Rh4 Rf7 Bd2 Re7 Bb4 Bc1 Bd2 Re6 Kc2 Rh6 Bd3 Rf6 Bh7 d3+ Kd1 d4 Qf7+ Kh6 Be3 d2 Kc2 Rd6 Ra2 Rd5 Rb2 Rb5 Ra2 Bg7 Rb2 Ne5 Ra2 d3+ Kc3 d1B Kd4 Rb4+ Kc5 Bd7 Qbf8 d2 b8R Bd3 Rd8 B1e2 Kd5 Rb8 Qb4 d1B Kc5 Bf1 Rb2 Be6 Rd6 Bg4 Rd2 Bgf5 Re2 Nf3 Bd2 Qd7 c7 Bge5 c8R Qdd8 Kc6 Qde7 Qe8 Kg7 Be3 Bg8 Qf7+ Kh8 Rc2 Bd7+ Kc7 Rb6 Rb8 Qf5 Rb7 Rb5 Kb8 Qd8+ Ka7 Qc7 Ka8 Rb6 Qd5 Kg7 Ra7 Bh6 Bg5 Nf4 Rh2 Ng6 Qdb7 Ngh4 Nf4 Ng2 Qd5 Nge1 Ne6+ Kf7 Nd8+ Kg7 Be7 Bhf4 Bg5 Bf6 Qe6 Qb5 Rh4 B6e5 Rch2 Qc2 Rc7 Rb7 Rc8 Qc7 Qf7+ Kh8 Qe6 Qcb6 Nd2 Qd5 Qb3 Kg7 Rc2 Qc7 Qc3 Qdc5 Qf5 Rb2 Qb4 Qb5 Nb3 Rb1 Qf7+
2Nr2r1/1P1rn2r/Qrn2R2/BN2Rq2/b1qBq2B/4B2k/1rQR3r/2K5 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Qd1 f4 Ng1 f3 Bh3 Bd6 Bg4 Bf4+ gxf4 hxg4 c4 Kf7 e4 Ke6 b4 f1Q h4 a5 e5 Kf5 c5 g5 h5 d5 e6 f2 b6 a4 e7 g3 e8R g2 h6 g4 c6 d3 c7 d4 b7 g3 h7 a3 b5 a2 b6 Qd5 Nh3 g1R Re4 g2 Na3 Bd7 c8Q Ra7 Rh2 Nc6 b8B Nge7 Qc2 Kg4 Re5 Qe4 f5 Rg8 h8B Rh1 f6 g1R f7 Rg2 Rb1 a1R Nb5 R1a6 f8B Rc7 b7 Rb6 Nf4 Kg3 Rh6 Rhh2 Rf6 Kg4 Nd5 Kh3 Qd8 Be8 Rb2 Rd7 Ndc3 R2g7 Ra2 Rh7 Nd6 Rb2 Bc7 Rb6 Bb2 Qb1 Bc1 f1Q+ Rf2 Qb4 Qa8 Qc4 Ncb5 Rd8 Ra6 Bd7 Re2 Qff5 Nc8 Be8 Kd1 Rd7 Be3 d2 Ra3 Rd8 Qa6 Rd7 Rf2 Rd8 Rd3 Bd7 Ke2 d1R Bh6 Rdg1 Kd2 Rb1 Bhg5 Rb2 Kc1 Be8 Rdd2 d3 Bh4 Bd7 Re6 Be8 Bhd4 Bd7 Rg2 Be8 Rdf2 Rd7 Re5 d2+ Kd1 Rd8 Rg6 Bd7 Rf6 Na5 Nba7 R6b4 Bc3 Ba4 Re2 Nac6 Ba5 Rb6 Nb5 Qb4 Rg2 Qc5 Ke2 d1R Rf2 R1d7 Bd4 Qeg4+ Kd2 Qge4 Kc1 Qc4 Rd2
Q1N5/3n2br/1N2RqBN/q1q2Qb1/1RPq4/2r1rqb1/1B1k1B1r/1B3K2 b - - 0 1 legal: proof: d4 f5 b4 a5 f4 axb4 g4 c5 e4 fxe4 f5 cxd4 f6 Qc7 Bh3 Qa5 Bf1 Qd8 h3 g5 Bd3 b6 Bc4 Ba6 Bf1 Bc4 Nc3 Be6 Nb1 Bf5 gxf5 Nc6 h4 g4 Bh6 Ne5 Bg5 Nf7 Bc1 Ng5 hxg5 Ra5 Ne2 Ra3 Ng1 Ra8 c4 Kf7 a4 e5 a5 h5 a6 d5 a7 e3 Qa4 d3 Ne2 d2+ Kd1 b3 Qa2 d4 Ng3 b5 Ke2 b2 Rh3 e4 Bg2 h4 Nc3 b1Q Nd1 b4 Qa3 b3 Nc3 b2 Qa5 d3+ Kf1 e2+ Kg1 e1R+ Bf1 d1Q Qa3 e3 Qa5 e2 Kf2 d2 Qa4 Qa2 Bg2 b1Q Nb5 Bg7 Rh1 h3 Qa3 h2 Bb2 Rh7 Be4 Qd5 Qd3 Qa5 Ra4 Qa1 Rb4 Qc5+ Kg2 Rf8 a8Q Qb3 Qf3 d1Q Bb1 Qdd4 Na7 Qbd1 Rg1 h1R Nc8 Re8 Rf1 Re3 Qfe4 Rc3 g6+ Kf8 f7 Nf6 Rf3 Nd7 Re3 R1h3 Qe6 Reh1 Qed5 e1B Re6 R1h2+ Kf1 Qf6 Qd3 Q1a3 Qde4 Qdd4 Qf3 Bd2 Qfd5 Bg5 Qf3 B7h6 Qf2 Kg7 f8N Bf4 Qc2 Bhg5 Qd3 Kh6 g7 Bd6 g8B Be5 Bf7 Bc7 Ne2 Re3 Bg6 g3 Qde4 Qd2 Nd4 g2+ Kg1 Bg3 Qe5 Qfe7 f6 Qed8 f7 Qf6 Qf5 Qb3 Nc6 Qdd4 N6e7 Qbd1+ Qf1 Qdf3 Qf2 B5f4 Nf5+ Kg5 Nh6 Be5 Qf1 Kf4 Qd3 Qfd5 Qc2 Kf3 Qe4+ Ke2 Qf3+ Kd2 Qf5 Nb6 Nd7 Qf3 f8B Bef4 Bd6 Bg5 Nb8 Nd7 Bc7 Bd6 Bb6 Bf8 Ba7 Bg7 Bb6 Qh5 Kf2 g1B+ Kf1 Bf2 Ba7 Bg3 Bb6 Ne5 Nd7 Qhg4 Ba7 Qh5 Ndb6 Nd7 Bb8 Bf2 Bg3 Qf3 Bh4 Bg3+ Kg1 Bd6 Bf2 Bg3 Kf1
Q1qkb2q/PRnr3N/RqQ2nB1/3B2R1/2nr1rq1/Q3Nn2/6R1/n6K b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qb3 f3 Qc2 Qf6 Qd1 Qd8 Nh3 f5 Ng1 h6 Bb2 f4 Bf6 Bd6 Bg5 hxg5 Qc1 f2+ Kd1 f3 Qc2 Ra4 Kc1 Ra8 Qd1 Bf4 gxf4 Bf5 Nh3 Bd7 Ng1 Bc8 a4 c5 e4 b5 h4 g4 d4 g5 Kd2 b3 Ke3 b2 d6 g3 d5 g4 d7+ Ke7 d6+ Kf7 e5 g2 h5 b4 h6 b3 a5 g3 a6 c4 a7 c3 h7 c2 f5 c1N e6+ Kf8 f6 Na6 f7 Nf6 Qd5 Nc7 Nd2 b1Q Ra6 b2 Rh5 Qc2 Nh3 b1Q Nc4 g1N Qc6 g2 Rg5 Qb6+ Kf4 Bb7 Kg3 Nb3 Kh2 Na1 Ne3 Qe8 Bb5 f1R d8Q f2 d7 Qc3 Qb8 Ke7 Bc4 Qc8 Bd5 Rd8 h8R Qcb2 Rhg8 Nf3+ Kg3 Rd1 R8g7 Rf8 d8R Rd4 Rh7 Qc3 Rd6 f1N+ Kf2 N3d2 Kg1 Nc4 Rd8 Nfd2 Rhg7 Rh8 Rdg8 Rhh4 Rh7 Rhf4 R8g6 Nce8 f8Q+ Kd8 Qa3 Nc7 Rd7+ Ke8 e7 Qcb2 Qe6 Bc6 Kh2 Bb5 Qc6 Qc3 Qbb7 Rb8 Qa8 Rb7 Rg4 Qb2 Ng5 Qc3 Nh7 g1Q+ Kh3 Ba4 R4g5 Qg4+ Kh2 Nf3+ Kh1 Ne6 Rd6+ Rd7 Rg7 Nc7 Rf7 Ne4 Rh6 Nf6 Rh2 Qd3 Rfg7 Qg6 Rf7 Qg7 Rb2 Qh8 Rfg7 Qa5 Rb7 Qb6 R7g6 Qf5 Rg2 Qg4 Rg5 Bb5 Qcd6 Rd8 Qdc5 Bc6 Qb5 Rd6 Qbc5 Kd7 e8B+ Kd8 Bg6 Be8 Qb5 Rd7 Qc6
1N1Rkr2/2b1B1q1/Nb2nB2/4n3/1N1qbQ2/2b3n1/K1Qn1RPn/2Q1n1Q1 b - - 0 1 legal: proof: d4 a5 h4 c5 f4 cxd4 a4 b5 axb5 f5 e4 g6 Bc4 Ra6 Be6 fxe4 f5 Rd6 f6 Rd5 Bh3 Rh5 Bf5 Rg5 hxg5 gxf5 Kd2 h5 c4 d5 Kc2 e5 Kb3 d3 g6 h4 g7 a4+ Ka2 d2 b4 a3 c5 f4 b6 d4 b5 h3 c6 d3 b7 f3 b6 f2 c7 f1N Qe1 d1Q Qh4 d2 Ne2 h2 Qh7 e3 Bb2 e4 Nd4 e2 Qh4 e1B Qh7 e3 Ne6 e2 Ng5 Bf5 c8Q Be4 Qc1 Qd7 Qc5 Ne7 g8Q Nd5 Bd4 Nc6 b8N Qg7 b7 Bg3 Ne6 e1N Nc3 Nf4 Nd5 Ne5 Nb4 Bf2 Rg1 h1N Qc1 Qa4 Qh2 d1N Nc5 Nd2 Qgh7 Ne3 Nca6 N3g4 Rf1 Bd6 Qg1 Ne6 Rb1 Be3 Rf2 Nh2 Ra1 Bc7 f7+ Kf8 Bb2 Beb6 Qg6 Ke7 f8B+ Kd8 Qh7 Ke8 Be7 Ng3 Bd4 Rf8 Qg6+ Nf7 Bdf6 Qd7 Qf5 Qd4 Rb1 Ne5 Rb3 Bc6 Qfc2 Be4 Rd3 Qc5 Ka1 a2 Kb2 a1B+ Ka2 Bc3 Rd8+ Kf7 Nd7 Qd4 b8Q Qg5 Qb7 Qg7 Ndb8 Bg6 Qf3 Be4 Rd7 Ke8 Qf4 Nd8 Rd5 Ne6 Rd8+
7b/b4Kn1/3bn2N/1N2RN2/2BBnPbb/1R2r1Q1/2R1r1rn/Q1N2kb1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 b4 fxe4 g4 h5 Ke2 hxg4 Ke1 a5 Nc3 a4 Nb1 Qa5 bxa5 Rh5 Bf4 Rh6 Bc1 Rh8 Kd2 Kf7 c4 Kf6 f4 Kf5 h4 e5 h5 g5 a6 d5 b6 d3 Kc3 a3 a7 g3 b7 g2 h6 e3 h7 Ke4 c5 d2 c6 a2 c7 g4 Ba6 d4+ Kc4 e2 Nc3+ Ke3 Kd5 Kf2 Rh6 e1B Qc2 d3 Ba3 e4 Rb1 a1B Re6 g3 Rc6 e3 Rb2 e2 Na4 d1R Nb6 d2 Qf5 Nd7 Ke6 Nh6 b8R Rg8 h8Q Nc5+ Kf6 Bd6 Qh3 Kf1 Nd5 Nf5 Ne7 Ng7 Rb5 Bg4 c8N Nce6 Nf5 Rb1 Rc3 d1N Rbc2 Nf2 Bc5 Rb2 Nce7 Rae8 a8N Ne4+ Kf7 Bf2 Be3 e1N Rcb3 Nf3 Ne2 Nh2 Nh6 Be1 Qh4 g1B Re5 g2 Bd4 Ra2 Qg5 Bh4 Nc7 Be3 Nb5 g1B Nc1 Bef2 Bc3 Ba7 Nef5 Ra3 Bd4 Ra2 Rcc3 Re2 Qg6 Rc8 Rc2 Rc3 Bb7 Rg3 Bd5 Rgg2 Qg5 Rc8 Qg6 Rc3 Bc4 Re3 Qa8 Bf3 Qg3 Bg4 Qh8 Rd3 Bc5 Nh5 Rd5 Rde3 Qc3 Bb2 Qa5 Bc3 Qa1 Bh8 Re5 Nhg7 Bd4
bR3nk1/q1b3Nq/B1b5/2br2b1/2q1q3/3Q1RPB/Q2q1b2/1KBB2NQ b - - 0 1 legal: proof: d4 f5 b4 a5 f4 axb4 g4 c5 e4 fxe4 f5 cxd4 f6 Qc7 Bh3 Qa5 Bf1 Qd8 Bh3 g5 Kf2 b5 Qd3 Na6 Bf1 Nc7 Bf4 Ra3 Bh3 Ne6 Qd1 Ng7 Bf1 Nf5 gxf5 g4 Ke1 g3 Be3 g2 Bc1 Rg3 hxg3 Bh6 Na3 Bg7 Nb1 Bf8 Kd2 Kf7 a4 d5 c4 h5 Kc2 e5 c5 e3 a5 d3+ Kb2 d4 a6 h4 a7 b3 a8B e4 c6 d2 c7 b4 Bd3 e2 Ba6 e1B B6b7 d3 Ra2 e3 Nc3 h3 Ra7 h2 Ka1 e2 Nh3 g1B Nf2 b2+ Ka2 Be7 Bc6 Rh5 Nb5 Qd7 Nd4 Bb7 Bf3 Bc6 Qa4 d1Q c8B d2 Ne6 Qb3+ Kb1 d1Q Qa6 Qc4 Rc7 Q1d2 Nh3 Bef2 Rb7 e1B Rb8 Qa7 Bab7 Bb6 Ng7 Bc7 Qa5 Bgc5 Rf1 h1B Ng1 Bef2 Bd1 Kf8 f7 Nf6 Qa2 Nd7 Ba6 Bg5 Re1 Ba8 Re3 Bhc6 Rf3 Qb3 Bf1 Qc4 Bh3 Rh6 Ne8 Rd6 Ba6 Rd4 Nd6+ Kg7 f8Q+ Kh7 f6 Rd5 Qc8 Nf8 Qd8 Kg8 f7+ Kg7 Qa4 Re5 Re3 Qg4 Qa2 Nh7 Ne2 Be1 Ne8+ Kf8 Qd4 Rd5 Qe4 Qh4 Qh1 Qhd4 Ng1 Q4c3 Qa5 Qcd3+ Ka2 Qb5 Kb3 b1Q+ Bb2 Qf5 Ka2 b3+ Ka1 Qc4 Bc1 Qe6 Qa2 b2+ Kb1 Nf6 Rd3 Nd7 Ra3 Qh6 Re3 Qh7+ Rd3 Ke7 Ng7 Kf6 f8Q+ Kg6 Qf4 Nf8 Qd4 Kf7 Qde4 Bef2 Rf3+ Kg8 Qb3 Bcd4 Ka2 b1Q+ Ka3 Bcd8 Qa2 Bc7 Qe2 Bdb6 Qf1 Qbe4 Qd3 Qde1 Kb2 Qd2+ Ka1 Bbc5 Kb1
N3N3/R4NRK/1QB1r3/qbP2pqR/N1rnQ3/1n1n2kB/1b3b2/r2q4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 axb5 e6 f5 h6 g4 f6 g5 exf5 gxf6 Bb4+ Bd2 Bf8 Bg5 hxg5 Kd2 Kf7 b4 Kg6 h4 Kh5 e4+ g4 c4 d5 b6 g5 f7 a5 e5 a4 c5 a3 b5 a2 b7 d3 Ke3 d2 e6 Qa5 e7 Rh6 e8B Raa6 b6 Bd7 Nh3 Bb5 Nf2 Bg7 Qc2 d1Q Bh3 g3 Ng4 g2 Nc3 Nf6 Na4 Nc6 b8Q Nd4 b7 Ne4 Bc6 Nf2 f8N g1B Nd7 Re6+ Qe4 Ra7 Ndb6 Nd3+ Nf2 g4 Na8 g3 Qd6 g2 b8R Rd7 Rg8 Bh8 Rg7 Qg4 Qc7 Nb3 Qb6 Qg5+ Kf3 d4 Ng4 Bf2 Rh2 g1R Rh1 Rc1 Rh2 Rc4 Nf6+ Kh6 h5 Ra7 Ne8 Ra6 Rg1 a1N Ra7 Nc2 Rgg2 Ndc1 Rg4 d3 Rg3 d2 Rg1 Qd8 Kf4 Bb2 Rgg7 d1Q Rh1 Ncd4 Rh2 Rg6 Ke5 Kg5 h6 Kh5 h7 Qg5 h8N Rd6 Nf7 Rg6 Qf3+ Kh4 Qe4+ Kg3 Bg4 Rd6 Rh5 Rh6 Bh3 Nd3+ Kd5 Ne6 Kd6 Rf6 Ke7 Ned4 Kf8 Re6 Kg8 Qad2 Nc3 Ra1 Na4 Qa5 Kh7
1r4bB/R1b2nQ1/1P1QBn2/1n1p3q/1KB3qQ/1RQrr3/8/2N1bNkq b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 g4 Kf7 Kd2 Kf6 f4 h5 c4 d5 b6 e5 c5 h3 c6 h4 c7 b3 Qf3 e4 Ra7 e3+ Kd3 b2 Qf2 e2 Ra4 e1B Rb4 h2 Na3 b1N Rb3 h3 Nc2 Na3 Ne3 Be6 c8Q Nc6 Ne2 Rb8 Bb2 Nb5 Nc1 Qd7 Qc7 Nd8 Qc3 Rh5 Qh4+ Rg5 Be2 Bd6 Nf1 Bc7 Kc2 Qc8 Bc4 Nf7 Rg1 h1Q Kd3 Ke7 f6+ Kd6 f5 Kc5 Rg3 Rg6 g5 h2 Rg4 Rh6 g6 Qf3+ Kc2 h1Q g7 Rh7 Rg3 Qh5 Ra3 d3+ Kb3 d2 Ra7 d1R Rf3 Nfh6 f7 Nf6 g8B Rd3 f8Q+ Re7 Qg7 Bf7 Ba1 Ree3 Bb2 Qe6 Ba1 Qe4 Rg3 Qeg4 Ka4 Be8 Be6 Bf7 Rh3 Bg8 Rf3 Kd6 Kb4 Nf7 Rh3 Rd4 Rf3 Ke5 Rg3 Ke4 Bb2 Nh7 f6 Rdd3 Ba1 Ne5 f7 Nf6 f8Q Nf7 Rh3 Kf4 Qd6+ Ke4 Rh2 Kf3 Rh3+ Kg2 Rh2+ Kg1 Rb2 Qg3 Rb3 Qgg4 Qh8 Re5 Qd2 Ne8 Qh7 Re2 Bh8 Nf6 Qc3 Ree3 Qg7
Q5Rr/1nb4b/2nr4/2Nkn2b/rq1B4/Qb3B2/1PbQ1KNp/1Q3N1R b - - 0 1 legal: proof: h4 c5 d4 g5 c4 gxh4 f4 b5 a4 e5 axb5 d5 cxd5 cxd4 Ra6 exf4 Ra3 Nc6 Ra1 Nb8 e4 Kd7 g4 Kd6 b6 h5 g5 a5 b7 f5 g6 h3 g7 h2 Nf3 a4 Ke2 a3 Qd3 a2 Bh3 h4 Ke1 Nf6 g8N Be6 Qc2 d3 Ne5 f3 Ng6 f4 Qd2 f2+ Kf1 Ra4 Bg4 h3 Ne5 Nc6 Ne7 Qa5 Rg1 h1R N7g6 h2 Nd7 Qb4 Nc5 Nd7 Nh4 Nde5 Bf3 Be7 Ng2 Bd8 b8Q+ Bc7 Qe1 d2 Qa8 d1B Be3 Bc2 Bd4 Bf5 Qd1 Bh7 Nd2 Bb3 Ke2 f1B+ Kf2 Bd3 Nf1 Bdc2 Rc1 a1N Qa7 Ke7 d6+ Kf7 d7 Ke7 Nh4 Kd6 Rg8 Rg1 Qd2 Rg6 Ng2 Rf6 Be2 f3 d8Q+ Nd7 e5+ Kd5 Qc8 Rd6 e6 Nde5 e7 Bhg6 e8Q Bh5 Kg3 f2 Qca8 Bh7 Qg6 Bc2 Q7b8 Nb3 Qba7 Na5 Qa6 Bb3 Qb1 Nb7 Qad3 Bc2 Qa3 Bb3 Kf4 Bhc2 Ke3 Bh7 Ng3 f1B Kf2 Bbc2 Bd1 Bc4 Bf3+ Bce4 Rh1 Bb3 Bd1 Bef5 Nf1 Bfc2 Bf3+
3n1rbn/R2K3Q/3BB3/1r3N2/2Bnq1b1/QRBPQ2r/bpN1k3/2nn4 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Bg2 Bh6 Bh3 g4 Bf1 Bg5 hxg5 fxg3 a4 Kd7 e4 Kd6 Ke2 Ke5 Kd3 Kf4 Kc4 c5 Kb5 h5 a5 f5 d6 g2 e5 g3 e6 h4 e7 c4 e8Q b3 a6 c3 a7 b2 g6 c2 g7 h3 d7 h2 Qee1 Nh6 g8B Qe8 Kc5 b5 Kd6 b4 d8B b3 Ra5 Nf7+ Kc7 Nc6 Qe6 Rh3 Ba6 Nh8 Ne2+ Kf3 d3 g1R Qg6 g2 Ra1 f4 Ra3 Bg4 Bb5 Qe4 Bd2 c1N Bg5 Rf8 a8Q Nd8 Ra1 Re1 Rg1 h1B Na3 b1B Bbc4 Ba2 Be7 b2 Bge6 Kf2 Nc2 f3 Ned4 Re2 Re1 g1N Kd7 Re3 Qf7 Nge2 Nf5 Nd4 Qa3 Rh5 Bc3 Rg5 Ng7 Rb5 Nf5 Bg2 Rh1 B2h3 Qg1+ Ke2 Qh5 f2 Bd6 f1N Qh7 Rf3 Qg3 Ne3 Qe5 Bg2 Rh6 Rh3 Qg3 Nd1 Rf6 Qf4 Rf7 Bd5 Qe3+ Kf1 Re7 Qe4 Re8 Nb7 Rb8 Nd8 Qf4+ Ke2 Rb6 Ra5 Rb3 Rb5 Qe3+ Kf1 Qa5 Bb1 Bg8 Bf7 Ra4 Ba2 Qb4 Bd5 Qa3 Bf7 Qg5 Ke2 Ra7 Bfh5 Bgd5 Bf7 Be6 Bg8 Qe3+
7Q/rbBb2bN/k1r2b1N/n3n2R/1Q6/3p4/rn2P1R1/RKRqBQ1b b - - 0 1 legal: proof: g4 f5 a4 c5 f4 b5 axb5 h5 d4 cxd4 Bh3 e5 gxf5 exf4 Bg4 hxg4 Kd2 d5 h4 Kd7 c4 Kc7 Kc2 Kb7 b4 g5 h5 a5 f6 d3+ Kb2 f3 b6 d2 h6 a4 b5 d4 c5 f2 f7 f1B h7 g3 Ra2 g2 Nh3 g1R Qe1 d1B Rh2 a3+ Ka1 g4 Bf4 g3 Qb4 g2 Nc3 Nh6 Bd2 Nf5 Rh1 Ne3 Ne4 Bg7 f8Q Nc4 Be1 Ba4 Ng3 Nb2 Ng5 Nc6 Kb1 Ra7 Ra1 Na5 Rh5 Qd5 Nf5 a2+ Kc1 d3 Nh6 Qb3 Qf2 Rf8 h8Q Rf6 Nh7 Rc6 Qf3 Rh1 Qff8 g1N Qf2 Bg2 Qf1 Kb8 b7 Kc7 b8R Nf3 Ra8 Kb7 b6 Ka6 b7 Ne5 b8B Bb7 Bc7 Rh4 Rf8 Bh1 Rf2 Rf4 Rfh2 Rf8 Rg2 Rfa8 Kd2 Qd1+ Kc3 Re6 c6 Bf6 Bb6 Rd6 c7 Bd7 c8R Re6 Rc5 Rc6 Bc7 Qa4 Rd1 a1B Kd2 Qb3 Kc1 Qa4 Kb1 Bg7 Rd2 Qd1+ Rc1 Nbc4 Nf8 Rc8 Ne6 Nf3 Nd4 Rc5 Bf4 R8c6 Ne6 Baf6 Bc7 Nfe5 Rc2 Ng4 Nf8 Nge5 Nh7 Rb5 Qb3 Rb4 Rc3 Ra4 Qb4 Nb2 Ra3 Ng6 Rf5 Ne5 Ra1 Ra2 Rh5
rQ6/3bQNrn/q1n2b2/bN2r1N1/n1B1RBP1/1NB5/p1K5/2R1bk1b b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 e5 axb5 exf4 h4 gxh4 e3 fxe3 g4 Kd7 d4 Kd6 b4 c5 b6 f5 b7 a5 b5 h5 b6 c4 Nf3 e2 Kd2 e1B+ Kc2 f4 Ng5 f3 Rg1 h3 Bd3 c3 Bb5 h2 Bf1 h1B Qd3 h4 Be3 h3 Na3 a4 Qd2 h2 Ra2 f2 Ra1 Rh5 Kb1 c2+ Kb2 c1B+ Kc2 Bd7 Qa5 Be7 Ra2 Bf6 Qa7 Bcd2 Bc4 Nc6 b8N f1R b7 Qb6 Na6 Ba5 Nc5 Qa6 Nb3 Rf5 Rf1 Rh7 Bf4+ Re5 Rg1 Rg7 b8Q+ Ke7 Nb5 a3 Ra1 a2 Rf1 Bc7 Rc1 Bca5 Nh7 Kf7 d6+ Kg6 Ng5 Kh6 d5 Kg6 Bd2 Kh6 Bc3 Kg6 Ne4 Kh6 Rf4 Kg6 Ned2 Kg5 Ne4+ Kh4 Ng5 Kg3 Re4 Kg2 Qab7 Bfd8 Q7a7 Nf6 Qc5 Nh7 Qe3 Be6 d7 Bf6 d8B Bc8 d6 Bd7 Bf7 Kf1 Bc7 Bg2 Qc5 h1N Bd5 Ng3 Bc4+ Ne2 Qca7 Be6 d7 Bh1 d8N Bd7 Ndf7 Kg2 Bb2 Nc3 Bd6 Na4 Bc3 Be8 Qe7 Bd7 Bd2 Kf2 B6b4 Kg2 Bf4 Kg1 Bc3 Kg2 Bd5 Kf1 Bc4+
3nrbR1/K5b1/2brB2N/p2Rn2q/n2r1bP1/R1b2R1Q/2B1Q3/k2NN3 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 Be3 h5 Bf2 g5 fxg5 h4 e4 fxe4 Bg3 hxg3 axb5 Qb6 Ra6 Qc7 Ra1 Qd8 Ke2 Kf7 c4 Ke6 b4 Ke5 h4 a5 c5 d5 h5 d3+ Ke3 d4+ Kd2 g2 c6 Nd7 c7 Qe8 b6 Ra6 b5 Bb7 c8B Nh6 g6 Nf7 g7 Nd8 g8R Bc6 h6 Qh5 h7 e6 b7 e3+ Kc1 e2 Kb2 e1B Kb3 d2 Kc4 d3 b8Q+ Ke4 b6 e5 b7 Bg3 Ra3 Bf4 Nf3 g1B Ne1 Bd4 Nc3+ Ke3 Qd6 e4 b8R Bdg7 Rbb3 Ne5+ Kc5 Rb6 Qc2 d1N Be6 d2 Bd3 Nb2 Rh2 d1R Rd2 Rb4 Qe7 Rc4+ Kb6 Kd4 Ka7 e3 Qh4 e2 Qh3 Na4 Qb2 Rc5 Qa2 Rd5 Bc2+ Kc4 Rd3 Rd2 Rf3 Kd4 Rb5 Rd6 Rab3 Rd3 Rd5+ Kc4 Nd1 Rd4 Ng2 e1B Qb2 Bc3 Ne1 Bgh6 Rg6 Rg8 h8N Bfg7 Rg5 Re8 Nf7 Bf8 Rg8 Bhg7 Rg3 Bcd2 Rbf3 Bc3 Qa2+ Kb4 Qc4+ Ka3 Qe2 Ka2 Nh6 Bb4 Rb3 Bc3 Rf3 Ka1 Ra3#
R2bK3/R1k1bnB1/2p1b1r1/1b1bN1Q1/P1nRBR2/3q4/3r3N/rB1Q2n1 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 gxf4 g5 Kf7 Qe2 Ke8 Qg4 hxg4 Ke2 Kd7 Kd3 e5 Ke4 b5 d4 g3 h4 b3 h5 g2 h6 b2 h7 b4 g6 b3 d6 c6 g7 f3 d5 f2 f6 Qe7 Kf5 e4 Kg6 e3 f7 e2 Bh6 e1N Rh4 Qe3 Nf3 g1B Rd4 Be7 f8R Qd3+ Kf7 Ra7 Nh2 Nf3 Nd2 b1B a3 b2 Nc4 Ba2 Bg2 b1R Bh1 f1B Bg2 Nf6 g8B Rb2 Bg7 Ne8 Ne5+ Kd8 d7 Kc7 d8R Nd7 Rf4 Bb6 Rd4 Ba6 Ra8 Ng1 Be4 B2c4 Ra2 Bc8 Ra1 Bb5 Ra2 Bg2 d6+ Kd8 Ra1 Rd2 Ra2 Bc7 Ra1 Nb6 d7 Ra6 Ra7 Nc4 a4 Rb6 Rf1 Rb7 Rf6 Ba5 Rf4 Kc7 Kg6 Ned6 d8Q+ Kb8 Bd5 Rg8 h8Q Nf7 Qh4 Bh1 Qd7 Bad8 Qg5 Bg2 Qdg4 Be6 Qd1 Kc7 Re8 Nb2 Ba2 Nc4 Bf5 Bgd5 Bb1 Bf6 Be4 Bde7 Rea8 Bd8 Kh7 Bfe7 Bh8 Rg6 Bg7 Kd6 Kg8 Rd7 Ra6 Kc7 Ra5 Ra2 R5a6 Ra1 Ra5 Bf6 Kf8 Bfe7+ Ke8 Qb3 Bg2 Bf3 Rde4 Rd2 Rd4 Bfd5 Bge4 Qd3 R5a7+
QN4r1/1n2PQ2/2n5/r2q1bBR/3r1bN1/bb1bBn2/1pNR1K2/3kB1N1 b - - 0 1 legal: proof: f4 e5 g4 a5 c4 f5 b4 axb4 Bg2 d5 cxd5 h6 Bh3 exf4 gxf5 h5 Bg4 hxg4 e4 Kf7 h4 Kf6 d4 b5 a4 c5 a5 g5 a6 b3 a7 f3 d6 f2+ Kf1 c4 h5 b4 d5 Ke5 d7 b2 f6 b3 h6 g3 h7 g4 d6 c3 f7 c2 Kg2 Nc6 Qd3 Nf6 Rh2 Rg8 h8N Ne8 Bh6 c1B Na3 b1B Qc4 b2 Be3 Ba2 Nc2 Bb3 Rh5+ Qg5 d8B Bf5 d7 Ba3 f8B Nd6 Bde7 Nb7 d8N Bd2 Kf1 g2+ Ke2 f1B+ Kf2 Bd3 Re1 Bc1 Re2 Bd2 Qf7 g3+ Kf3 Bc1 Bh6 Bd2 Bb4 Bc1 Be1 Bd2 Nh3 g1N+ Kg2 Nf3 Ng1 Bc1 Kf1 g2+ Kf2 Qf6 Bhg5 Qe6 Rh6 Qd5 Rh5 Rb8 a8Q Bd2 Ne6 Rbd8 Nc7 Rd6 Na6 Rd7 Nh3 g1R Nb8 Rg3 Ng1 Rg4 Ba7 Bf4 Be3 Rdd8 Bh4 R4g5 Ng6+ Kd6 Ne5 Rd7 Bc1 Kc5 Ng4 Kc4 e5 Rd6 e6 Rdd8 Rd2 Kc3 e7 Qc5+ Kg2 Rd4 Kf2 Qd5 Re2+ Nd2 Qe8 Qd6 Nb4 Bd7 Bg3 Ra5 Qf7 Qd5 Bh4 Be6 Bg5 Bef5 N4a6 Kc2 Nb4+ Kd1 Nc2 Nf3 Bcd2 Bdc4 Be3 Bcd3 Rd2+
b4bRK/2r1p1Bb/2R1q1k1/B1BN1n1P/QR4bn/3n4/4R3/r1br1NQ1 b - - 0 1 illegal: No possible last move
qn3Bq1/3bb2Q/4Rk2/B7/1bK1Bb2/BN2rp1N/1bNPrn2/1rQR4 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 h4 Ke7 e4 f5 Ke2 g5 Kd3 c5 d6+ Kf6 b6 b3 d7 g3 h5 g4 b7 g2 h6 c4+ Kc3 b2 h7 g3 Kd4 c3 Be2 c2 Rh2 f3 Nh3 g1B+ Kc4 f4 Bd3 g2 Na3 b1R Rh1 Bh2 Re1 Qa5 d8B+ Be7 Bb6 Qg5 Ba5 g1B Re3 f2 e5+ Ke6 Qe1 f3 Be4 f1Q+ Re2 Kf7 e6+ Kf6 Qh4 Bb4 e7 Bgc5 e8Q Bd7 Qc8 Nh6 Qh5 Re8 h8B+ Qg7 Qc7 Ng4 Qh7 Nf2 Qc8 Na6 b8N Bf4 Nc6 Be7 Nd4 Nb8 Nb3 Ra6 Qc7 Re6 Qc5 Re5 Bb2 c1B Nc2 Qg1 Ba3 Bb2 Qc7 Nd3 Qc8 Qa7 Re3 Qa8 Qc7 Re1 Rd1 Nf2 Qc8 Rb5 Qc5 Re2 Qc7 Ke6 Qc8 Qg8 Bg7 Rb7 Bf8 Rb5 Rd3 Kf6+ Rd5 Bed6 Qc5 Re6 Rh5 Be7 Re5 Rd6+ Qd5 Nc6 Ncd4 Ba1 Nc1 Nb8 Kb3 Rc5 Qc4 Rdc6 Nd3 Bb2 Ne1 Qg2 Qc2 Rc7 Qb1 Rc1 Nec2 Rc5 Qa1 Rd5 Kc4 Qg8 Nb3 Rd3+ Bd5 Rde3 Qb1 Bd4 Qb2 Rb1 Qc1 Qg1 Bc6 Bb2 Be4 Qg8+ Re6+
4qqN1/k1B1n3/2BQN2r/K7/5pqP/2Q2nN1/1bR1qRq1/Nn1r2Rb b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 e4 Kd7 d4 g5 Kd2 c5 h4 Kc7 e5 Kb7 e6 f5 e7 c4 e8N g3 b6 c3+ Kc2 f3 Kb3 g2 d6 f4 d7 f2 d5 c2 d6 g4 Na3 g3 Qd2 Ne7 Nf6 Rh6 Ra2 Bg7 Ne2 g1Q Ng8 g2 Qc3 Nbc6 Ng3 Qf8 d8Q Ne5 d7 Nf3 Be3 c1Q Bb5 f1Q Rf2 Qe2 Nc2 Qce1 Na1 Ra5 Ba4 Rd5 Bc6+ Kb8 Ka4 b3 b7 b2 Bd4 b1N Be5+ Ka7 b8R Rd1 Rb2 Bb7 Bc7 Qgf1 Ra2 g1Q Rc2 Qfg2 Ka5 Bf6 Qe8 Be5 d8N Bh8 Qg6 Bf6 Qb4 Bb2 Qc3 Ba8 Qd6 Bb7 Ne4 Qg4 Ne6 Q1g2 Rg1 Qa6+ Kb4 Qa4+ Kc5 Qgf1 Be8 Nfd2 Rc1 Qee2 Ng3 Bh1 Rc2 Qg2 Bd7 Qac6+ Kb4 Nf3 Ka5 Qca8 Bb5 Qae8 Bc6
q2RR3/bb1Q4/n2q1k2/2Nb1q2/1Q1QP2R/n2BNpr1/1br5/1R2K1Bb b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 g4 Ke7 d4 h5 g5 f5 e3 c5 g6 h3 g7 h2 d6+ Kf6 d5 c4 b6 c3 d7 f3 d6 f2+ Ke2 f4 b7 h4 Bg2 f1B+ Ke1 h3 Qg4 b3 Nd2 b2 Qe2 b1Q Ra4 c2 Be4 Na6 b8Q Bb7 Qg4 Ne7 g8Q Nc8 Qa7 Bc4 Nb3 Nb6 Qd5 Rc8 Nc5 Rg8 Bd3 f3 Qge4 Rg3 Ne2 Qe8 Rg1 h1B d8R h2 d7 Bb3 Qb8 Nc4 Nc3 Na3 Nd1 Bd6 Qc6 Bd5 Qd4+ Qe5 Bd2 c1B Re8 Bb2 d8R Rc7 Qd7 Qa1 Nb3 Rc2 Nc5 Bc7 Rb4 Bb6 e4 Ba7 Be3 Qa2 Rg2 Qa1 Bg1 Qa2 Qc4 Qf5 Ne3 Qb3 Rd2 Qa4 Rb6+ Qc6 Rd1 Qd6 Rb1 Bg2 Rc6 h1Q Rc7 Qh8 Qd4+ Qde5 Rcc8 Bh1 Rc7 Qf8 Rcc8 Qd6 Rh8 Qf8 Rh4 Qd6 Re8 Qc6 Rcd8 Qc8 Qb4 Qd6 Qbc7 Qb8 Qcb6 Qa8 Qd4+ Kg5 Qbb4 Kg6 Qdc4 Kf6 Qd4+
5r2/3B1r2/r3BQKQ/1k4n1/p2NNbb1/1r3rPB/1R1BR1qR/1qn3q1 b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 cxb5 g5 a5 c4 a6 Nxa6 d4 c3 d5 Nb8 d6 Bxd6 hxg5 Bf8 Kf2 h5 Kf3 d5 b4 Kd7 e4 a5 b6 Kc6 b7 f5 e5 h4 g3 d4 g6 a4 e6 h3 g7 c2 e7 d3 e8B+ Nd7 b8R d2 Be2 h2 Na3 Nf6 g8B Nh7 Bb2 c1R Nc2 Ra6 Nh3 Qb6 Be6 Rb1 Bc3 Bh6 Ng5 Rb3 Ne4 Qg1 Qc1 d1Q Ra2 Rf8 Rb2 Qd5 Bf1 Rf7 Bh3 Ng5+ Ke2 Rf8 Bd2 Rf7 Ra8 Kb5 Qf1 Qc6 Qf3 Nc5 B8d7 Nd3 Nd4+ Kb6 Qf2 f3+ Ke3 Nc1+ Kf4 Qb7 Ke5 f4 Nc6+ Kb5 Qd4 f2 Qc3 Rh7 Kf6 f1R Kg6 Rf7 Qf6 Rff3 Ra7 Qg2 Re1 h1Q Re2 Qb6 Ra8 Qbg1 Rb8+ Bb7 Rh8 Bc8 Rh7 Rfd3 Rh8 f3 Rh7 f2 Rh8 Kb6 b5 f1R Rh7 Rdf3 Rh8 Bf8 Rh6 Bd6 Rh8 Kb7 b6 Bf4 Rh5 Ra5 Rh6 Ka6 b7 Kb5 Rh8 Ra6 b8Q+ Bb7 Qf8 Bc8 Qh6 R1f2 Be8 Bd7 Bd5 Bg4 Bd7 Q1f1 B5e6 Qhg1 Rh7 Qd1 Rh8 Qc2 Rh7 Qb1 Qh8 Be5 Qh5 Re7 Qd8 Rf8 Rf7 Q2h1 Qh6 Bd6 Rf4 Ref7 Qf6 Rf1 Rf3 Bf4 Rff2 Qhh2 Rg2 Rf3 Rgf2 Qhh1 Rh2 Qhg2 Nd4+
3bn3/pq1bq3/q4Nk1/2P1Qr1B/Q2K2B1/nrn2N2/Q1Q1R2R/3n1Rn1 b - - 0 1 illegal: No possible last move
4Q1KR/Q7/1r1n4/Bb1Q4/1NQq2N1/qb3P1p/1rBb1q2/1bnBknR1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 Kg5 g4 c5 d4+ e3 b6 h3 d6 Kh4 d7 h2 Ke6 b3 Kf7 e5 d5 e4 d6 c4 g5 e2 g6 e1Q b7 c3 g7 b2 Ra2 e3 Ba6 c2 Bf1 e2 Bg2 Ne7 g8B Qb4 Ra1 e1Q Na3 b1B Bd5 Rh6 Ba2 Nf5 Qf3 Na6 b8Q Ne3 Bd5 Nc5 Qe2 Nf1 Qc4+ Ne4 Qa7 Rb8 Bd2 c1N Nc2 Ba6 Nh3 Bb5 Bh7 Qa3 Kg8 Qb6 Bc6 Qd4 d8Q+ Rf6 d7 Nd6 Rg1 h1B Ba5 Bh6 Bf3 Bd2 Bd1 Rb7 Nb4 Bd5+ Kg7 Be6 f3 Qf2 Bhc2 Rb6 Rh1 Kg3 Qe8 h4 d8Q Rf7+ Kg8 Rfb7+ Qf7 Bd5 Qe8 Rb8 Qa2 Bb3 Qc4 Qg2 Nf2 h3 Ng4 Qgf2 Qd5 Nh2 Re1 Kg2 Re7 Kf1 Rh7 R8b7 Rh8 Rb8 Be4 Ke1 Qc2 Nf1 Qcc4 R8b7 Bec2+ Re7 Qcc6 Ng3 Qab7 Be3 Rh5 Nce2 Rg5 Kd2 Bd3 B1c2 Qcc4 Re4 Rc1 Bb1 Rh5 Bf4 Rh8 Re3 Bh7 Rc3 Qee5 Rc2 Qe8 Rb2 Qa7 Bh6 Bdc2 Be3 Rg1 Nf1 Bhd3 Nc1 Bd1 Ke1 Be4 Bd2 Bec2+
1n4Q1/r4k1B/b1q3q1/R1RR1q1b/1rrp3P/2nQ1NQQ/1B3n2/1Nn2K2 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 h4 gxh4 g3 h3 Ra2 h2 Ra3 Qh4 Ra1 Qd8 Na3 h5 Qd3 h4 Nb1 h3 Qd2 Be7 Qd1 Bh4 gxh4 Qb6 Ra5 Qf6 Ra1 Qd8 b4 f5 c4 a5 e4 d5 e5 d3 b6 d4 b7 f3 b5 f2+ Kd2 a4 c5 f4 e6 f3 e7 a3 b6 a2 c6 Kf7 e8R Ra7 c7 Qf6 Qa4 Ne7 Ne2 Nd5 Nec3 Qg6 Ne4 Nc3 Qc2 Rh6 Be2 f1R Re5 f2 Bb2 Rc1 Rd5 f1Q Bh5 Qf5 Ng5+ Kf8 Rd1 h1N Ke1 h2 Nf3 d2+ Kf1 Kf7 Qd3 Nf2 Re1 d1B Ree5 Rh7 Rc5 Ra4 Red5 Rb4 Bg4 Qf4 Bf5 h1Q+ Ng1 Qhe4 Nf3 Qee6 Be4 Qc6 Bf5 Bd7 Be4 Qff5 c8Q Rc2 Nfd2 Bh5 Nf3 Na6 b8Q Be6 Rd6 Bc4 b7 Rg7 Qa8 Nb8 Rdd5 Rh7 Qa3 Ba6 Qb3 Nb5 Qh8 Rcc4 Qe5 Nc3 Qg3 Nd7 b8Q Rg7 Qh3 Rh7 Qbg3 Nb8 Nbd2 Rg7 Rc1 a1N Nb1 Rh7 Qa2 Nb3 Ra5 Kg8 Rc2 Nc1 Qb3 Ra7 Qa2 Qf8 Qb3 Kf7 Qa2 Qgg7 Bh7 Qgg6 Na3 Ke7 Rg5 Rc5 Ba1 Na4 Qg8 Qff6 Rd5 Qff5 Rc4 Nc3 Bb2 Kf6 Qc8 Kf7 Nb1 Ra4 Qh8 Rb5 Rcc5 Rc4 Qc8 Rbb4 Qg8+
n2q2nQ/4B3/bq1N2Kb/r1p1Q2r/3R2N1/2nB1B2/Bb1Q2RP/rr5k b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Qb3 g4 e4 h5 Qf3 gxf3 g4 Nh6 g5 Ng8 b4 Rh7 Ra3 Rh8 Re3 Be7 Re2 Bf8 Rg2 Qd7 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 d4 Kd6 g6 f5 b6 a5 b7 c5 g7 a4 e5+ Kc7 d6+ Kc6 d7 Kd5 b5 Ke4 b6 a3 d5 a2 d6 a1B e6 Ra3 e7 Rh7 e8B Ra5 Na3 Bb2 Bh5 Na6 b8Q Nc7 b7 Na8 Nb5 Rh6 Nh3 g3+ Kg1 g2 Kf2 Qb6 d8R g1N d7 Ne2 Rg1 Nc3 Rg2 Rh7 Qc7 Rh8 b8Q Ba6 Bg4 Rh5 Qcc8 Ne7 g8B Bh6 Ba2 Ng8 Ke1 f2+ Kd2 f3+ Kc2 f4 Nd6+ Kd4 Bd3 f1Q Nf2 Qe2+ Bd2 Qe7 Be1 Ke3 Qcc7 Nb5 Bc3 Qf8 Bf6 Nc3 Be7 Qe8 Nfe4 f2 Bf3 f1R Nf2 Rb1 Ng4+ Kd4 Rc8 Ra1 d8Q Rb1 Qdd7 Ra1 Rd8 Qf8 Bfe4 f3 Qbc8 f2 Bf3 f1R Q7b8 Bg7 Kd2 Rfb1 Qbc7 Na4 Ke2 Qf6 Kf2 Nc3 Kg3 Qh4+ Kf4 Bh6+ Bg5 Qf2 Kf5 Qd2 Kg6 Qd1 Nf2 Ke5 Be7 Kf4 Ng4 Qa4 Qe8 Qd7 Q8b7 Qc8 Qd5 Qcb8 Rd7 Qd8 Qb8 Nf6 Qh8 Ng8 Qdd4+ Ne4 Qdf6+ Rf5 Nf7+ Qdc7 Rf2 Qa7 Qc3 Rh5 Rd4 Qb7 Qc2 Qd5 Qe2 Qd8 Qb4 Qb6+ Nd6 Ba3 Qee1 Bb2 Rd2 Rh3 Bd1 Rh5 Re2 Kf3 Qbd2 Nc3 Qg5 Qc8 Qge5 Qd7 Qd2 Qdd8 Nf2 Kg2 Ng4+ Kg1 Rg2+ Kh1 Bf3
1k1BRKBR/q1R1N3/1nNnQb1N/r1p5/nP3q2/1q1b3N/5Q2/4r1nr b - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 e5 Ra4 Ba6 Ra1 Bc8 h4 g5 f4 gxh4 b3 exf4 Ra4 a5 Ra3 a4 Ra1 axb3 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 g4 Kc7 e4 b2 d4 f3 g5 f2 g6 f4 g7 h3 Ra4 h4 Qe2 h2 Qc4 f3 Bd3 f1N Bg5 h3 Nc3 Nf6 g8N b1N Nh6 Nbd7+ Ke6 f2 Kf7 Ne8 e5 Bg7 e6 Ra5 d6+ Kb8 d5 Ng3 e7 Bf6 Bh7 f1Q Bg8 Nb6 d7 Ne2 d6 Qc7 d8N Qa7 d7 Qf4 Kf8 Ba6 Qe6 Bd3 Nd5 Nd6 e8R Nbc3 Ne7 Rh7 Ra1 Nca4 Bh4 Rg7 Ra2 Rg5 Ra3 Re5 Ndc6+ Kb7 d8Q Re3 Nf3 Ng1 Ng5 Re1 Ra2 Ndc4 Qd4 Nd6 Re2 Kc7 Rc8+ Kb7 Rc7+ Ka8 Ne5 Kb8 Qf2 Nf3 Rg1 h1Q Re3 h2 Nh3 Qg2 Rh1 Ng1 Bg5 Qd5 N5c6+ Ka8 Bh4 Qb3 Nef5 Bh8 Bd8 Bf6 Nfe7 Ne2 Rg1 h1R Rg7 Ng1 Rh7 Qfc4 Re2 Qf4 Rh8 Qe3 Qd5 Rf1 Ng6 Qf4 Re8 Ra1 Nge7 Re1 Nd4+ Kb8 Qf5 Qg3 Qe6 Qf4 Ndc6+
1R1q3N/rn1R1B2/1b1qqk2/1pqn2RQ/nBP1r1br/NNR1Q3/8/6K1 b - - 0 1 legal: proof: h4 b5 d4 c5 b4 cxd4 e4 f5 exf5 g5 a4 gxh4 axb5 a6 b6 Nc6 b5 axb5 Rh3 Nb8 Rh2 Na6 Rh1 Nb8 g4 Kf7 c4 h5 f4 e5 Kf2 d5 f6 d3 g5 d4 b7 d2 f5 e4 Ra4 d3 Qf3 d1N+ Kg2 e3 Be2 h3+ Kf1 d2 Bb2 h4 Bc3 h2 Bb4 h3 Ra7 Nc6 b8R+ Nge7 Na3 Rh4 Rd7 Na5 Qg4 Bg7 Nf3 Ra7 Nd4 Nc3 Nb3 Na4 Qf3 Re4 g6+ Kf8 f7 Bd4 Bd3 Kg7 f8N Bb6 Qh5 Kf6 g7 Nd5 g8R Nb7 Rhg1 h1Q Ng6 Qh2 Nh8 Qe5 R1g3 h2 R8g5 h1R+ Kg2 Rhh4 Kg1 Qe6 Rh3 e2+ Re3 Ke5 f6+ Qf5 f7 e1Q+ Kg2 d1Q f8Q Ke6 Qc5 Kf6 Be2 Qe5 Rc3 Qe6 Bg4 Qe3 Bf5 Qdd4 Bg6 Qg3+ Kf1 Qgd6 Bf7 Q4e5 Qe3 Qc5 Re7 Q6d6 Rc7 Bg4 Rd7 Qee6 Kg1
N2b1N1r/B1n2nq1/br1p3Q/2Rb2R1/2kq3P/r4rN1/3B2Q1/1NK3Qn b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Kd2 Kf7 b4 e5 h4 a5 c4 f3 b6 a4 c5 a3 c6 g3 b7 a2 f6 Ke6 f7 Kd5 b5 d3 b6 e4 c7 f2 g6 f1R g7 g2 Nf3 g1N Ng5 e3+ Kc3 e2 Kb2 e1R Nh7 d2 Nf6+ Kc4 Qh5 d1B Qh6 Be7 f8N Ne2 Bd2 Ng3 Nh5 Na6 b8Q Bb3 b7 Rf3 Rg1 Re6 Kc1 Rb6 Qa7 Nh1 b8B d6 Qb7 Qd7 Rg5 Bd8 Ng3 Qg4 Ba7 Qd4 Qe4 Bb7 c8N Nc7 Qe1 Ba6 Qd1 Qd3 Qg1 Qd4 Qg6 Nh6 g8Q+ Nf7 Qh6 Ba4 Qgg6 Bc6 Qe4 Bd5 Qg4 Rbb3 Qh3 Ra3 Qhg2 Rb8 Nb6+ Kb5 Na8 Rb6 Nc3+ Kc4 Rb1 Qg7 Rb5 a1Q+ Nb1 Qad4 Rc5+
1r1bq1b1/3r4/q1Pn4/2R3k1/q1N2Q1n/N2KNn1B/1Rp5/Qq1R1BNb b - - 0 1 illegal: No possible last move
b2BqBq1/2nn3P/5r1r/N2bRQ1n/N2k2Q1/2n2B2/q2N2bp/R3KN2 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 h4 gxh4 g3 h3 Ra2 h2 Ra3 Qh4 Ra1 Qd8 Na3 h5 Qd3 h4 Nb1 h3 Qd2 Be7 Qd1 Bh4 gxh4 Qb6 Ra5 Qf6 Ra1 Qd8 e4 Ke7 c4 Ke6 b4 Ke5 h5 f5 c5 a5 c6 d5 c7 d3 h6 d2+ Kf2 d4 b6 d3 b7 f3 b5 a4 b6 a3 Ne2 a2 Ng1 f4 Ne2 Ra6 Ng3 Kd4 e5 Qe8 e6 Ne7 Nh5 Nd5 e7 Nd7 b8N Bb7 c8N Nc7 Ng3 Ba8 b7 Rf6 Bg2 Qg8 Qf1 d1Q e8Q d2 Ba3 Qa4 Qg6 d1N+ Ke1 Nc3 Nb6 Qb5 Rg1 h1B Bf8 h2 Na4 Qc6 Qg4 f2+ Kd2 Qce6 Bf3 Qe8 Qfh3 Rh7 Re1 f1B Re5 Bfg2 Ke1 Rh8 Nd2 Rh7 Rc1 a1Q Ngf1 Qaa2 Ra1 Rh8 Bd1 Bd5 Bf3 Bg2 Nc6+ Kd3 Na5 Kd4 Be4 f3 b8B Ne6 Bbd6 Nc7 Bde7 Rh7 Kf2 Rh8 Bd8 Rh7 Kg3 f2 Qh5 Rh8 Qf5 Rh7 Ne3 f1N+ Kf2 Ng3 Nf1 Nh5 Ke1 Re7 h7 Ree6 Rb1 Rh6 Ra1 Ref6 Bf3+
B3q2q/k3Q2p/1RBnB2q/1R1rPr2/1rR4Q/5N1N/2Kn1Bb1/4bbr1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 a4 c5 d4 cxd4 f4 b5 axb5 axb4 Rh3 exf4 Rh2 Qa5 Rh1 Qd8 Kd2 d5 e4 Kd7 c4 Kc7 g4 Kb7 e5 f5 b6 b3 g6 d3 c5 d4 g5 f3 g7 f4 g6 f2 Qf3+ Nc6 Ra5 b2 Ra4 Bh3 Ra6 Qe8 Qe4 f3 Be2 f1B Qh4 f2 Bh5 Nd8 Be2 Bhg2 Kd1 d2 Bb5 Nf6 g8B Nf7 g7 Rd8 Nh3 Rd5 Kc2 d1R Be3 Ne4 Nd2 b1R Nf3 Nfd6 Be6 Nd2 g8B Rb4 c6+ Kb8 b7 d3+ Kc3 Re1 Rb6 Ka7 b8R Be7 Bgf7 Rf8 c7 Bg5 Bh5 Rf5 c8Q Bf4 Rh2 Bg3 Qc7+ Nb7 Rh1 Be2 Nfg1 f1Q Ba6 Qh8 Be8 Qf4 Nf3 Qh6 Qce7 Nc4 Bg1 Rd1 Rd6+ Bf2 B8d7 Rdb1 Rc6 Nbd6 Bb7 Ra1 Ba8 Rf1 Bh2 Ra1 Rc1 Bg3 Rc2 Rg1 Rc5 Bef1 Rb6 Be1+ Nd2 Na5 Bg3 Nb3 Rc1 Qg6 Kb2 Qge8 Nf3 d2 Bf2 d1Q R1c4 Qd2+ Kb1 Qh6 Rcb5 Nd2+ Kc2 Qc8 Bdc6+ Qd7 Qeg5 Qde8 Qe7+
3k3b/nn1r1p2/b2Q4/2q1q3/b3qb1Q/B1PBR2K/r2Nr1BN/1N1R3N b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 c5 a3 cxd4 a4 b5 axb5 axb4 Kf2 g5 Kg2 d5 e4 f3+ Kg3 g4 h4 d3 e5 d2 c3 f2 b6 d4 h6 b3 e6 d3 h7 b2 e7 Qd6+ Kg2 g3 b7 Nf6 h5 Bh6 Nh3 Bf4 h6 Nc6 b8N Qe5 Nd7 Ra2 Nb6 Nd7 Nc4 Ba6 Be2 f1R Nf2 Nc5 Rh3 Na7 Nh1 Re1 Bf3 Rf8 h8Q Nb7 h7 Qc5 Qd4 Re2+ Qf2 Kd7 e8B+ Kd8 Bb5 Rfe8 h8N R8e7 Bfc6 Rd7 Ng6 Qe5 Nh4 Qc5 Qc2 d1Q Nf3 d2 Qg6 Qe1 Nh2 d1B Ncd2 Bb3 Bd3 Ba4 Na3 b1Q Qd6 Qbb5 Nab1 Qe5 Ba3 Qbc5 Rh5 Qe4+ Kh3 g2 Re5 g1B Re7 Qee5 Qh4 Bd4 Bg2 Qe4 Ng4 Bh8 Nh2 Qg6 Re3+ Qf6 Qf2 Qfe5 Qh4+ Bf6 Rg3 Rf2 Rf3 Q1e4 Re3 Qcd5 Bc5 Qc6 Na3 Re2 Rd1 Qb6 Nab1 Qa5 Qh5 Bh8 Ba3 Qac5 Qh4+
BR6/2NPk1N1/n4rb1/3qr1b1/1q2br1B/RRRq2p1/3r4/Q1K1B1nQ b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 e4 g5 d4 f5 Kd2 c5 h4 c4 e5 b3 d6 g3 d5 g4 e6 c3+ Ke1 b2 d7+ Ke7 b6 g2 h5 c2 Kd2 g3 b7 f3 h6 f4 h7 f2 Bb5 f1Q Qe1 f3 Ba6 f2 Nh3 g1R Ra3 Nh6 Nf4 Rg2 Nh5 Nf7 Ng7 Ng5 Nc3 b1B Nb5 Nh3 Nc7 Ng1 Bc4 Rg8 h8Q Na6 b8R Bb7 Qd1 Bc6 Rbb3 Rc8 Bb2 Qd3+ Kc1 f1R Bc3 Rf4 Be1 Rd2 Bb5 Ba8 Bc6 Rb8 Rh5 Rb5 Qf3 Ra5 Qh1 Qb8 Re5 Qb4 Re4 Rb5 Rc4 Rc5 Rcc3 Rf6 Nge8 Bh6 Ng7 Bg5 Bb7 Rgf8 d8B+ Kd6 e7 Rf4 e8R R8f6 Qf8+ Kd7 d6 Re5 Bf3 Be4 Be7 Bg6 Ba8 Qd5 Rb8 Be4 Kb2 Qd3 Qfh8 c1Q+ Ka1 Bc2+ Ka2 Qd1 Kb2 Qh5 Kc1 Qf7 Bd8 Qfd5 Q8h3+ Rfe6 Nf5 Q3c4 Kb2 Bh6 Qg4 Bg2 Bg5 Rf6 Bh4 Bg5 Qd1 Qf1 Ng7 Bg6+ Rc2 Qfc4 Qa1 B2e4 Kc1 Qcd4 Rcc3 Qd3 Rb6 Kd8 d7 Ke7 Rb8
n2b1N1k/2P2n2/Kn1N4/BBRn1B2/r1Q1Qb2/3rbpN1/5RnN/q3n3 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 h5 Kd3 a5 Kc4 d5+ Kd3 f5 b4 Kf7 c4 Kg7 e4 h4 c5 h3 c6 a4 c7 h2 e5 a3 b6 f4 g5 a2 b7 f3 e6 Ra4 e7 Nf6 e8Q Nbd7 b8N Be7 g6 Nb6 b5 Na8 b6 Nd7 b7 Ndb6 Ne2 g1N Nd7 g2 b8N Nh3 Bd2 g1B Nf4 Be3 Bb4 Ng5 Nf6 Nf7 Ne4 Bg5 Qe6 Qf6 Nd6 Rd8 Qb3 Kh8 Ne2 Bgf4 Qe4 Rd7 Rg1 h1N Ba5 Qg7 Nd2 Nf2+ Kc2 Qf6 Qc4 d3+ Kb3 d4 Rc1 a1B Ng3 Rd8 Nd7 Qe5 Nb1 d2 Nf8 d1N Nd2 d3 Rg2 Nc3 Rc2 Ncd5 g7+ Kg8 Be2 Qd4 Ndf1 d2 Rc3 d1N Nh2 Nd3 Rf2 Ne1 Rc2 Bc3 Bf1 Bcd2 Bh3 Qa1 Bf5 Bg5 Rc1 Nf4 Rc3 Nfg2 Rc2 Nc3 Rc1 Ra2 Kb4 Ncd5+ Kb5 Ra4 Ka6 Bef4 Qc6 Bde3 Rc5 Rd7 Qb5 Bd8 Qbc4 Ra2 Ng6 Kh7 g8B+ Kg7 Bh7 Ra4 Nf8 Kh8 Bh3 Nh4 Bf1 Nhg2 Bf5 Nc3 Ne8 Rd3 Nd6 Ncd5 Qa2 Rd1 Bb5 Rd3 Qac4
1r4Q1/1b6/5r1R/1N2KP1N/BNrRBn2/Bq2bp1r/2Q1r1q1/r1k2n1N b - - 0 1 illegal: No possible last move
1QNb3k/4Q1Q1/q1pnbR1b/B3r2r/K2N1r1b/1R6/2P1n2R/QrB4r b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 f6 dxe5 f5 e4 fxe4 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kd2 Kf7 Kc3 Kg7 Kb3 d5 h4 a5 g6 e3 h5 e2 b6 e1B e6 d4 b7 a4+ Ka2 g3 b4 f3 Ka3 f2 e7 f1R e8Q g2 Qe4 d3 Bg5 d2 Rh2 Nf6 Ne2 g1B Nbc3 Be6 Nd5 Bh4 Ne7 Qd6 Nd4 Nc6 b8Q Ra5 Nc8 Re5 h6+ Kg8 g7 Rf4 Rb1 Ne8 Rb3 Rh7 Qb1 d1R Qa1 Rb1 Qe2 Rh8 Qe1 Kh7 g8R Be3 Rg6 Be7 Qe2 Bd8 Rf6 Kg8 h7+ Kg7 Ka2 a3 b5 Rh1 b6 Bc1 Nb5 Nd4 b7 Qa6 Qe4 Ne2 Nd4 c6 Qa7 Rg8 b8Q+ Kh8 Qe7 Nd6 Qg6 Rf8 Bh6 Rff5 Bd2 Rh5 Ba5 Rf7 Qg3 Bh6 Qgc3 Kg7 h8B+ Kh7 Rf3 Rb1 Bf6 Kg8 Bg5 Kh8 Bc1 Rf4 Qab2 Ref5 Nb5+ Rd4 Bd2 Rh1 Bc1 Rfg5 Rf4 Rc5 Qg3 Rce5 Rf6 Rf4 Nd4 Bh3 Rb6 Bf5 Kb3 a2 Ka4 Be6 Rb3 a1R+ Qa2 Rb1 Qa1 Qa8 Qg6 Qa6 Qgg7+
3Q4/1B2PqNR/2rq1q1q/2B3Q1/1N1N1nR1/1BK3k1/q1np3N/1q1b2br b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 c4 Ke5 e4 f5 b4 h5 g5 a5 g6 d5 c5 a4 b6 a3 b7 f3 g7 Kf4 b5 f2 b6 h3 c6 h2 c7 h4 e5 d3 e6 a2 Be2 f1Q Qa4+ d4 Qb5 h3 Qc5 Ne7 g8B Ra6 Bh5 Kg3 Nc3 f4 Bh7 f3 Qb5 f2 B5g6 Qd6 Bg8 Nbc6 b8N Nd5 b7 Ncb4 Be4 Nf4 Ba3 Nc2 Nd5 Rc6 Nf3 Rh4 Re1 a1Q Bc5 Qa2 Nb4 Bg7 e7 Bg4 c8N Rh5 Kd1 d2 Bb3 Qc4 Re2 f1Q+ Re1 Qf6 Nd6 Qfd3 Ne8 Qcf7 Bed5 Qdf5 Re4 Qd7 Re2 Qdd6 Re4 Bh8 Ng7 Rh4 Rhe1 h1Q Qa5 Qg2 Rh1 h2 Qb5 Rh7 Qa5 Qh3 Qd8 Qhh6 Qg8 Rc8 N8c6 Rc7 b8Q Bh5 Rf1 h1Q Qbd8 Qh3 Rh1 Qg4 Na7 Rc8 Bb7 Rc6 Nb5 Nh3 Ke2 d3+ Kf1 Nf4 Nbd4 Qgg6 Rh4 Qg4 Nh2 d1Q+ Re1 Qdb1 Rc1 Na3 Ke1 Nc2+ Kd2 Ng6+ Kc3 d2 Qb6 Nf4 Rh1 Qgf5 Qbd8 Bd1 Ne6+ Qg4 Qg6 Rg7 Qf5 Rg5 Qd5 Re5 Ng7 Re1 Nf3 Rg1 R1h2 Rh1 Qg5 Qhg6 Rh7 Qh6 Rh4 Be2 Ne6 Qf5 Nh2 Be5 Ng7 Bd1 Qa8 Q5f6 Qe8 Ne6 Qd8 Bf4 Qh8 Be3 Qe8 Bg1 Qd8 Nf4 Rxg4+
1n1B2r1/qn1rp3/r2B1Q1n/1K1N2n1/RPR1BrnB/3Q3k/6N1/3bbQ2 b - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 f5 h4 g5 e4 gxh4 b3 fxe4 Ne2 a5 Ng1 a4 Ba3 axb3 Bb2 Ra2 Bc1 Ra8 Ke2 Kd7 g4 h5 f4 c5 d4 c4 f5 h3 d6 e3 f6 Ke6 d7 b2 f7 h4 g5 Kf5 d5 Kg4 d6 c3 Kd3+ e2 Kc4 h2 g6 h3 g7 c2 Ra6 Nh6 g8Q+ Bg7 f8B Qb6 d8Q Qa7 Qgd5 Rg8 d7 Bc3 Rb6 Be1 Bf4 c1N Nf3 Nd3 Qc6 Nc5 Qf6 Nb7 Nc3 b1R Rc6 Rb3 Nd5 Rd3 Bg2 Rd2 Rg1 h1N Bh2 Nf2 Bd6 h2 Nh4 h1R Be4+ Kh3 Bg7 Nfg4 Kb5 Rd4 Rg2 Rf1 Rc4 Rf4 Qdf8 Rd3 d8B Bf5 Rg1 Bg6 Q8f7 Bh5 Ng2 Bh4 Qb2 e1N Qa3 Nh2 Nc7 Bg4 Bde5 Nef3 Bgf6 Rd7 Bd6 Qf2 Nd5 Ra6 Qad3 Qa7 Rh1 Bg3 Bh4 Ng5 Qf6 Bf3 Rf1 N2g4 Q1e2 Bf2 Ra1 Bg3 Qf1 Be1 Qb1 Be2 Ra4 Bd1 Qbd3+
3nb3/r3Q1b1/b2B1N1R/1kb2P1n/N1nB1r1R/qr6/np3QK1/NB3N2 b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 f4 Kd7 Kf2 h5 g4 c5 d4 b5 f6 e5 g5 b4 g6 a2 f7 b3 g7 c4 d6 Kc6 f5 h3 d7 c3 Qg4 c2 Kg3 h4+ Kf3 h2 Be3 c1N Qg6+ Nf6 g8N e4+ Kg2 h3+ Kf2 Bc5 f8N Rh4 Nf3 Ra7 Nbd2 Qe7 d8Q Ba6 Qg2 Rf4 Ne6 Nh5 Bd3 b2 Rb1 a1N Nb3 Na2 Nf6 Nc2 Na1 Na3 Bc2 Qd6 d5+ Kb5 Bd4 Nc4 Qe7 e3+ Kf1 Nc6 Qf2 Nd8 Nd2 Qb6 d6 Qa5 d7 Qa3 Rg1 h1B Rg6 h2 Rh6 Bhb7 Rd1 Bc8 Bb1 h1R+ Kg2 e2 Nf1 e1B Rd3 Ba5 Rh3 Bc3 Rh4 Rh3 Nd2 Nf7 d8B Bd7 Bc7 Be8 Nf1 Nd8 Bd6 Rd3 Nf8 Re3 N8d7 Rh3 Nb6 Rd3 Be3 Be5 Na4 Rb3 Nh7 Bf6 Bd4 Bg7 Nf6
8/1Q1nN1nr/rB4Rk/Q1rNPn2/1n3r1b/Q3b2K/3Rp1B1/1q1Q1bN1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 e5 d4 exd4 e5 f6 Qc2 f5 Qe4 fxe4 g4 Kf7 f4 Kg6 Kf2 a5 Kg2 c5 b4 h5 g5 e3 b6 d3 b5 e2 d6 c4 d7 h3+ Kh2 h4 b7 c3 b6 c2 Nf3 d2 Nd4 d1R Nc6 a4 Nd2 a3 Bb2 c1B Ra2 Rh7 Nb4 Be7 Bg2 Rf1 Nd5 Ra6 Nf3 Be3 Ng1 Nh6 Bd4 Nf5 Rc2 a2 Rd2 Ng7 f5+ Kh5 f6 a1N g6 Rf4 f7 Nc2 f8Q Kh6 Bc5 Nb4 Bd4 Qc7 d8Q Nd7 b8Q Qc1 b7 Qb1 Qd6 Bg5 b8Q Bb7 Qa5 Ba8 Nb6 Bd5 Bf1 Bg2 Nd5 Nc6 Nf3 Bf2 Ba7 Bb6 Nb4 Bf6 Qdc5 Be7 Qfc8 Nh5 Qc3 Bf2 Qbb5 Bb6 g7 Bbc5 Na2 Nb4 Qca3 Bf2 Nc3 Bb6 Qbc5 Bed8 Kg1 h2+ Kf2 h3 Nd5 Bf6 Rg1 h1R Qb7 h2 Q5a4 Bh3 Rg5 Rg1 Q4b3 Rg3 Qd1 Bg2 Rg4 h1N+ Kg1 Bfd8 Kh2 Bh4 Ng1 Rc3 Qca5 Be3 Bb6 Rc5 Rg3 Bh3 Rg2 N1g3 g8N+ Kg7 Nge7 Kh6 Qab3 Ng7 Qba3 N3f5 Rg5 Bg2 Rg4 Be4 Bh3 Bg2 Rg3 Bf1 Bg2 Qc1 Kh3 Qb1 Rg6+
2B1RK1Q/1b2rN1q/n3r3/1P2Q3/1bNn2R1/1k1p2n1/1brr1R1B/4BBb1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Kd2 Kf7 Kd3 e5 Ke4 d5+ Kd3 g5 f4 e4+ Ke2 b3 h4 d3+ Ke3 d2 Kd4 b2 Ke5 e3 c4 g3 h5 g2 c5 e2 c6 e1N h6 d4 h7 g4 c7 d3 f6 g3 f5 Ra6 Na3 b1R Qa4 d1R Qg4 Bb7 c8B Rd2 Nc4 Qd7 Ra2 Ne7 Qg5 Nc2 Nh3 Nd4 Rg1 Rbb2 Qf4 Rg8 h8Q Rbc2 Bb2 Rb6 Bc3 Rg7 Bb4 Na6 Ng5+ Ke8 f7+ Kd8 f6 Kc7 Bc3 Nef5 Qe4 Bb4 f8R Rd6 Qd5 Re7+ Qe6 Rb6 f7 Rc6 Kf6 Rd6 Nb2 Kb6 Re8 Kc5 f8B Rb6 Nc4 Rc6 Rh1 g1B Rh4 g2 Nf7 Ng3 Kg7 Bf2 Rg4 g1B Qe2 Re6 Kg8 Qc7 Bg7 Be1 Kf8 Ba3 Be5 Bb2 Ba5 Qd7 Bb6+ Kb4 Ba5+ Kb3 Bec7 Nh5 Bh2 Ng3 Qe3 Re2 Qee5 Bb4 Ra1 Red2 Re1 Qc6 Re2 Qe4 Rf2 Qh7 Rg2 Bc5 Bc3 Bb4 Rf2 Rd1 Be1 Rdd2 Rg6 Qh3 Rg7 Qh7 Rg4
2r1NK2/2q5/N1B2RQ1/5N1k/r3Q3/nPqn4/1Bpn1N1n/r1rR1bQb b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Ra4 Be7 Ra5 g4 Ra1 Bg5 hxg5 fxg3 d4 a5 Kd2 f5 Ke3 Kf7 Kf4 Kg6 Ke5 c5 e4 h5 b6 c3 b3 c2 d5 a4 b7 g2 d6 h4 d7 h3 Ke6 f4 e5 g3 Ne2 g1R Bb2 c1N Bd4 f3 Qd2 a3 Nbc3 c4 Nd5 f2 Ndc3 a2 Nd1 c3 Qc2+ Kh5 Kf7 h2 e6 g2 g6 Qc7 g7 Na6 b8N Nb4 e7 Ncd3 e8N Nh6+ Ke7 Ng4 g8Q Ra4 Kf8 Ba6 d8Q Bc4 Qc1 Nc2 Qe7 Na3 Na6 c2 Bb2 Bb5 Rb1 a1R Nd4 Bc4 Be2 f1N Nf2 Nd2 Bf3 Rf1 Ba8 g1Q Bc6 Qgg3 Nf5 Bb5 Rg1 h1B Qe4 Nh2 Qce1 Qge5 Rg6 Qc3 Rf6 Bc4 Q1e3 Rc1 Qa7 Ne5 Qae3 Bf1 Qg3 Nd3 Qg1 Rh7 Qge6 Rd7 Qeg8 Rd8 Q8g7 Rc8 Qg8 Re1 Rd1 Ndc4 Rd2 Rec1 Rd1 Nd2 Q8g6#
1Kb2n2/1Q2Q1Qq/Q3R3/qr1R4/B2N2Pn/2B4p/kbn5/qB2qnNr b - - 0 1 illegal: No possible last move
RQ4Bk/qN2n1bq/2N2r2/r2Pn2N/Q2B1b2/p1N5/3bR3/KnR2bn1 b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 d4 a5 Kd2 f5 Kc2 Kf7 Kb2 g5 h4 Kg7 e4 a4 e5 g3 b6 g4 b7 b3 d6 f3 d7 a3+ Kc3 b2 e6 g2 d5 f2 e7 f4 e8R f3 h5 g3 Rh4 Qa5+ Kb3 Nc6 Ka2 Rh6 d8Q Qa7 b8N Bh3 Re1 Rf6 h6+ Kh8 h7 Bg7 Bd3 f1Q Be3 f2 Bd4 Ne5 Ne2 g1B Nbc3 b1N Nc6 g2 Ng3 Bh2 Re2 g1B Nh5 Bf4 Qa4 Qe1 Qc8 f1N Qb8 Nfd2 Bg6 Bg2 Bf7 Ndf3 Rg4 Bf1 Be6 Nbd2 Rc1 Nb1 Ka1 Bge3 Rg5 Ng1 Rf5 Rg6 Rf8 Bd2 Rd8 Rf6 Re8 Rf8 Bf7 Ne7 Bg8 Rf6 Qbb3 Qh4 Ng3 Qh6 Nh5 Qa6 Qb7 Ra7 Ra8 Qb6 Qb8 Ra5 Ree1 Qa7 Re2 Bf8 Ng3 Kg7 h8N Qh4 Nf7 Qh7 Nd6 Kh8 Nb7 Bg7 Nh5
k1B2nn1/r1qR3P/r1N2QNq/nKQ5/4nq1R/3pq1B1/2N1N3/4R1bb b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 Ke2 g5 Kd3 d5 c4 Kd7 f4 Kc7 h4 Kb7 h5 e5 c5 e4+ Kd2 e3+ Kd3 b3 f6 g3 b6 b2 h6 g2 f5 g4 h7 e2 f7 e1Q f6 g3 Ra3 Qe6 Bf4 Qc7 Bd6 Ra7 c6+ Ka8 Nh3 g1Q Ra1 g2 Bg3 Qh2 Qf3 g1Q Na3 b1N Nf4 Nd2 Re1 Nc4 Nc2 Bc5 f8R Nd7 f7 Qeh6 Rd8 Nf8 Ne2 Na5 Rd7 Bb7 Qf6 Qhf2 Rh4 Qff4 Bh3 Ra6 Rd6 Ra7 Bc8 Qgf2 Na1 Qg1 Rd7 Qge3+ Kc2 d3+ Kc3 Bd4+ Kb4 d2 Nc2 d1N Ka4 Nf2 Kb5 Ng6 f8Q Ne4 Q8e7 Nf8 Qc5 Qcd6 c7 Ra6 Qa3 Bc5 Qac3 d4 Qc4 d3 Qcc3 Bd5 b7+ Ka7 b8N Ka8 Nc6 Ra7 Ba6 Bd4 c8N Qc7 N8e7 Nf2 Nb8 Qee4 Na3 Rb7+ Ka4 Ng6 Qa1 Ka7 Qe6 Nf6 Qb1 Re8 Qd6 Nf8 Ng8 Re6 Qa1 Ka8 Ne7 Ra7 Kb5 Ng8 Qc5 Rd6 Bc8 Rda6 Ng6 Qe7 Qb4 Bh1 Nc6 Qee4 Qe7 Qef3 Qc5 Ne4 Nc2 Bg1 Qg7 Q3e3 Qf6
Qb4RB/rN1bn2p/Rrnn1B1q/8/r3n3/1P2B3/QQ1qkr2/N3Q1K1 b - - 0 1 legal: proof: c4 b5 f4 a5 a4 d5 axb5 e5 cxd5 exf4 h4 g5 e3 gxh4 Bd3 a4 Bg6 a3 Bd3 a2 Bf5 Nh6 Na3 Ng8 Bb1 axb1Q Kf2 Kd7 g4 Kd6 d4 c5 g5 f5 b6 h3 e4 c4 g6 h2 g7 c3 b7 c2 Ne2 f3 Be3 c1R Nf4 Rc6 Qe1 Bd7 Ne6 f4 Nc5 Ra7 Rg1 Rb6 Nc2 Ne7 g8Q Nbc6 Ra6 Qc1 Na1 h1N+ Kf1 f2 b8Q+ Qc7 Qf7 Qd2 Rg8 Ng3+ Kg2 f1N+ Kg1 f3 Qa8 Qd8 e5+ Kc7 b3 Ne4 e6 Kd6 Qf6 Nfg3 Qf2 Ngf5 Nb7+ Kc7 Qe1 Nfd6 Qb1 Bh6 Qa2 Bf4 Qg7 Qf8 Qe5 Nc8 e7 Qh6 e8Q N8e7 Qg7 Qc3 Qgg2 Qa5 Qgb2 Qd2 Qh5 Bg3 Qh4 Bf4 Qe1 Be5 Rg5 Rb8 Rg8 Rb4 Ra5 Kb6 Ra6+ Kb5 Qc3 Ra4 Qcb2 Ndc8 d6 Kb4 d5 Bf4 Qba3+ Kc3 Qac1+ Kd3 Qcb2 Bf5 d7 Ncd6 d8B Bd7 Bdb6 Be5 Bbd4 f2+ Kg2 Bh2 Bh8 f1R+ Qf2 Qc3 Qe1 Rf2+ Kh1 Bg3+ Kg1 Qd4 Nd8 Rb6 Nb7 Ndf5 d6 Qb4 Qd1+ Qd2 Qdc1 Ke2 Qcc3 Bc8 d7 Bb8 d8B Nfd6 Qcc1 Bd7 Qcb1 Nef5 Bdf6 Nfe7 Qe1+
k2R4/NQ1P2nN/2qNQ1bq/n1BQ2R1/Q2r4/1r1r2n1/2K2p2/rnbB4 b - - 0 1 illegal: No possible last move
1Qb4b/q6N/2n1R3/Q2r2qQ/b1Kn1Q2/3n1p1n/2Bq1NP1/1nR1B1kN b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 h4 exf4 b4 g5 Ra5 gxh4 Ra4 a5 Ra3 a4 Ra1 Ra5 bxa5 Bb7 Qd2 Ba6 Qd1 Bc8 Kd2 Ke7 Kd3 Ke6 c4 Kf5 c5 Kg4 e4+ Kg3 c6 Kf2 a6 f5 e5 h5 c7 d5 e6 f3 a7 h3 a8N h2 b6 a3 b7 h4 e7 a2 e8Q h3 Bd2 f4 Be2 Nc6 b8Q Qg5 Qb2 Bg7 Bc3 Nge7 Nd2 Nf5 Qbb1 Rh5 Qa4 Bh8 Kc2 d3+ Kb3 d4 Nf1 d2 Qc4 d1Q+ Qc2 d3 Ba5 d2 Rc1 a1Q Nb6 Qd4 Nd5 Qa7 Nf6 Nfd4+ Kc3 Qe1 Qe5 d1B+ Qd2 Ba4 Qcc5 Qd1 Kc4 Qe1 Qa2 Qd2 Qed6 Qh6 Bd3 Rd5 Nh7 Qh5 Ne2 Qg5 Rg1 h1N Nfg3 h2 Rge1 Qb6 Nc3 Qa7 Bf1 Kg1 Nce4 f2 Bd3+ f1N Bc2 f3 Qf4 Nf2 Nh1 Nd3 Nef2 Ndb4 Re6 Nd3 Ng3 h1N Bb4 Bb7 c8Q Ba6+ Qb5 Bb7 Qcb8 Bc8 Nfe4 Nhf2 Nh1 Nh3 Nef2 Qd1 Be1 Nd2+ Kc3 Nb1+ Kc4 Qd2 Qa3 Bd7 Qac5 Bc8 Qa5 Rd7 Qcf5 Rd8 Q5g4 Rd5 Qh5
q7/qN2n3/BB4Nq/b1R1rBbR/2qQ1B2/3p2rk/P4q2/QRr1b2K b - - 0 1 illegal: No possible last move
1N2n1n1/q1q1nn2/n1Q1b2R/2PQ4/q2B1r2/3N1kbB/RB2pB2/4bQK1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kf6 f4 h5 Kf2 d5 c4 e5 g5+ Kf5 g6 a5 c5 a4 g7 d3 b6 d4 b7 a3 b5 a2 b6 e3+ Kg2 Ke4 f5 e2 f6 e1B f7 h3+ Kh2 h4 Be3 d2 Nf3 d3 Bd4 Bd6 f8B Na6 b8B Qc7 b7 Be6 Bg2 Rh5 Qc2 d1Q Qf2 d2 Qf1 Qa4 Ba7 d1N b8Q Ne3 Bc3 Nf5 Bd2 Nfh6 Qc8 Nf7 Qd7 Rb8 Bh6 Rb4 Be3 Rd4 Bb6 Rf5 Ba5 Rf4 Bc1 Rd5 Bb2 Ke3 Kg1 e4 Nc3 Be5 Rd1 a1Q Qc6 Q1a3 Ra1 Qa2 Nd4 Bd6 Bf3 h2+ Kg2 Q2a3 Nce2 Be5 Nc1 Qa2 Rg1 h1N Nd3 Ng3 Bg4 Nf5 Bh3 N5d6 Rh1 Ne8 Kg1 Q2a3 Ra2 Bd6 Bf5 h3 Be7 Be5 Bac3 Bd6 Bh4 h2+ Kg2 Be5 Bh3 Bd6 Qb5 Be5 Nc6 Bd6 Nb8 Be5 Rg1 h1N Qc6 Ng3 Rh1 Nf5 Kg1 Nfe7 Bf2+ Kf3 Bcd4 e3 Rh2 Ngf6 g8Q e2 Qg6 Nfg8 Qb7 Rf5 Qb3 Bg3 Rh1 Rf4 Qh6 Bd7 Qc6 Bc8 Bf5 Be6 Rh6 Qaa5 Bh3 Q3a4 Ba3 Qab6 Bab2 Qba7 Qbxd5+
r3q3/R1n1PR2/R1r1NN1k/b3Nr2/R4Bq1/K6n/2QpQ3/nq2nB1n b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 h5 b4 d5 c4 f5 Kc2 Kf7 Kb3 Kg6 e4 a5 e5 f4 g5 f3 c5 h4 c6 f2 e6 d3 c7 d2 c8R a4+ Ka3 h3 b6 h2 b7 d4 Ra2 d3 Nc3 Qe8 Nh3 g1Q Nd5 g2 Qe2 d1Q Rc6 Rh6 Nf6 Na6 b8Q Ne7 b5 Nc7 Bf4 d2 b6 Qb1 b7 Ned5+ e7 Ne3 Qd8 Bg7 b8N Bh8 Ra6 Kg7 Ng4 Rc6 Qc8 Kg6 Ra1 Bc3 Nd7 Ba5 Nge5+ Kh7 g6+ Kg7 Ng5 Kh6 g7 Ra7 Qb5 Ra8 Bd3 f1R g8R Rf2 Ra2 Qgd1 Rg1 h1N Rg7 Qg4 Rf7 Rf3 Re1 g1N Bf1 Nh3 Nf6 Ng2+ Qd3 Rf2 Re4 Ne1 Qe2 Rf3+ Be3 Rf5 Bf4 N1f2 Qd8 Nh1 Qdd3 Qa1 Qc2 Qd1 Kb2 a3+ Kb3 Qa1 Ra4 Qd1 Ra1 a2 Kb2 Qb1+ Ka3 Qb6 Rb1 Qbb8 Rb7 a1N Rba7 Qb1 Ne6+
N1Q2r2/6n1/PB4K1/1nk2N1R/1n1pn2r/B2QBnQ1/2bn1qq1/2R2n1B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 d3 c5 d4 cxd4 c3 gxh4 Bb2 b5 Nd2 b3 Nb1 b4 Bc1 b2 Bg5 b3 Bd2 Bh6 Bc1 Bf4 Bd2 Bd6 Bc1 Bb4 cxb4 Ra3 Bb5 Ra7 Bf1 Ra8 Ke2 h5 Kd3 e5 Ke4 Ke7 f4 Kd6 g4 d3 a4 d2 g5 h3 g6 h2 b5 h4 a5 h3 f6 Rh4 Kf5 e4 f7 e3 f8Q+ Ne7+ Kf6 e2 f5 e1N a6 Qb6 g7 Qf2 g8Q Nf3 b6 Nc6 b7 Kc5 b8B d5 Bb5 d4 Nc3 b1N Bc7 b2 Nge2 Na3 Nd5 b1N Qg3 Nb4 Bc6 Nb5 Nb6 Be6 Qd8 Bb3 Qc8 Bc2 Kg7 Rb8 f6 Nf5+ Kg6 Ng7+ Be4 Ra8 f7 Rb8 Qf1 d1N Be3 Ndc3 Na8 Nbd2 f8B+ Nd6 Ra5+ Nb5 Rg1 h1N Qb1 h2 Rc1 Qg2 Qb3 Qf1 Qd3 Qf2 Qg1 Ng3 Bb7 Ngf1 Ng3 h1Q Nf5 Ne1 Qg3 Qhh2 Bh1 Nef3 Qe6 Re8 Qc8 Qhg2 Be7 Kc6 Bf8 N6e4 Bfd6 Rf8 Bc5 Na2 Ba3 Nb4 Nd6 Nbc3 Rh5 Nb5 Nf5 Kc5 Bb6+
2BQr1rN/4q1PR/3q1n1r/2B1b1r1/1RK1p3/2Br2N1/2Qr2Rr/Rn4k1 b - - 0 1 legal: proof: f4 b5 e4 f5 d4 c5 a4 cxd4 axb5 Bb7 g3 fxe4 g4 Bd5 f5 Be6 f6 gxf6 g5 Bg4 h3 f5 hxg4 f4 Ke2 e3 Kd3 Kf7 c4 Ke6 b4 Ke5 b6 a5 c5 h5 c6 d5 b5 f3 b7 Kf4 c7 Kg3 c8R Kf2 b6 e5 g6 e2 g5 e1Q g7 a4 g6 a3 Rc5 a2 Ra5 h4 Be2 h3 Ba3 h2 Qb3 Nd7 b8B Bd6 b7 Ne7 g8Q Nf6 Qe6 Rg8 Kc2 d3+ Kb2 d2 Kc3 d1R+ Nd2 d4+ Kc4 d3 g7 Ned5 Nf1 d2 Ng3 Nc3 Qd7 Nb1 Nh3+ Kg2 Bc5 f2 Nf1 Qf8 Bg4 Qe3 Bc7 Re8 b8R e4 Qc8 Qf4 Ng5 Qe7 Nf7 Qfe5 Nh8 Qd5+ Kb5 Be5 Qd8 Qdd7+ Kc4 Qdd6 Ng3 f1R Nh5 Rf2 Bc8 Rf5 Ng3 Rg5 Qd3 Rg1 Ra6 d1R Ba5 Rge1 Rab6 Re2 Bc3 Rf2 Qe2 Rd3 Qd2 Re2 Rb2 Rf2 R8b4 Re2 Rf1 h1R Rf4 Rf2 Rh4 Kg1 Rh7 Rh6 Rc2 Re3 Qd3 Rfh2 Rf2 Rf3 Qe2 Rd3 Be1 Nc3 Rab1 a1R Qb2 Ra3 Ra1 Ra2 Qb1 Re2 Qc2 Nb1 Bc3 Red2 Rg2+
r2N1n2/R2r2qB/K1n2B2/3PB2n/4R2Q/np1r3Q/2k2r1r/Q1BbN1n1 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 e6 Kf2 exf5 Ke1 f4 h4 gxh4 a3 b5 Rh3 b3 Rf3 b4 Rh3 b2 Rh2 b3 Rh1 Bb4 axb4 Bh3 Ra7 Bf5 Ra1 Bc8 g4 Kd7 d4 Kd6 Kd2 f5 Kd3 c5 Kc4 h5 Kb5 f3 e4 f2 g5 f4 g6 c4 g7 f3 Qe2 c3 Bd2 c2 Rh2 c1N Qd3 h3 Ra7 h4 Ne2 Qg5 Na3 b1N Nc2 Bg4 Nf4 Ne7 g8Q Nec6 Ne6 Rh7 Qd8+ Nd7 Ne1 Ne2 Bc1 Ng1 Ka6 Na3 b5 Qg7 b6 Bh5 Bg2 f1R b7 f2 Qb1 Bg4 Qa1 Bd1 Qh8 Nf8 b8B+ Qc7 Rh1 h2 Nd8 h3 Bf3 Rd7 Qh4 Ne2 Rg1 h1N Rg4 h2 Qh3 Nhg3 e5+ Ke7 e6 Kf6 d6 Kf5 d5 h1R e7 Ng1 e8Q Rh2 Qe7 Nh5 Nd3 Re1 Qeh4 Re3 Ne1 f1R Rd4+ Ke5 Be4 Rff2 Bh7 Rd3 Nb7 Re7 d7 Ref7 d8B Re7 Bg8 Rd7 Rg4+ Kf5 Bf6 Qg3 Bbf4 Ke4 Nd8 Qg2 Bcb2 Qg3 B4e5+ Ke3 Rd4 Kd2 Bh7 Qg5 Re4 Qg7 Ng2 Kc2 Bc1 Rc8 Re3 Rb8 Re4 Ra8 Ne1#
1QBbn2n/q1B5/n3q3/1Rq2n1k/nR1P3r/Q3R1N1/6pN/bn1RN1K1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 h3 g5 Bb2 b5 Bc1 f4 Kf2 Bf5 gxf5 g4 Ke1 g3 Qa4 Ra6 Qc2 Rg6 Qd1 Rg4 hxg4 Qd6 Bb2 Qf6 Bc1 Qd8 e4 Kf7 d4 h5 a4 c5 e5 h4 a5 f2+ Ke2 b3 a6 b4 a7 b2 a8Q g2 f6 Kg6 f7 b3 e6 c3 e7 f3+ Ke3 c2 e8R h3 g5 h2 Ra3 c4 Nh3 c3 Re6+ Kh5 g6 Qa5 g7 Ne7 g8R Ng6 Bc4 f1N+ Kf2 Be7 f8N Nd2 Ra4 Qa7 Ra3 Na6 Re2 Bd8 Be6 Nc4 Ng5 Nd6 Re3 Ne8 Nd2 b1N Nf1 b2 Ra5 Rh6 Rf5 Nh8 Bc8 Rh7 Bd2 c1Q Rb5 c2 Ba5 Nc3 Bc7 b1N Qb8 Na4 Nd7 Qa3 Nc5 c1B Rf8 Bb2 Nce4 Ba1 Qd3 Q3c5 Qa3 Rh6 Rg1 h1Q Nh2 Rh7 Rd1 Qg1+ Kg3 f2 Ngf3 f1N+ Kh3 Ng3 Ne1 Nf5 Ng3+ Kh6 Rb4 Qf1 Rf7 Qe2 Rfe7 Qa2 R7e5 Qe6 Rd5 Qce7 Rdb5 Qec5 Kg4 Kg6 Kf3 Rh4 Kf2 Kg5 Kg1 Kh6 Ne4 Kh5 Ng3+
4Br2/bbn1bQK1/1Q1R4/qb2p2b/1bQ5/RPB5/B2N1N2/1Qn1qkn1 b - - 0 1 illegal: No possible last move
1r6/1b3Nq1/B3R1qR/K1p4b/Q1PN1Qq1/rb1bQ1b1/1k1N4/Bnb3Q1 b - - 0 1 illegal: No possible last move
q3r1nR/3Bk3/nn1Rn1pn/R2Q4/1n1R2PB/1b5q/Bb1K1Nq1/4Q1N1 b - - 0 1 legal: proof: d4 a5 b4 e5 f4 exf4 a4 b5 axb5 c5 Be3 cxd4 Bd2 Qg5 Bc1 Qd8 h4 axb4 h5 g6 h6 f6 Qd3 Ra6 Qd1 Re6 Qd2 Re7 Qd1 Rg7 hxg7 Be7 Na3 Bd6 Nb1 Bf8 c4 h5 g4 d5 e4 b3 e5 f3 c5 b2 b6 h4 c6 h3 c7 f2+ Kd2 h2 e6 f5 e7 f4 b7 d3 Bg2 f1Q Ra7 d4 Ra8 f3 Nh3 f2 Ra6 Be6 c8R Bb3 Re6 Na6 Rc7 Qa8 Be4 Qg2 Rc2 f1N+ Ke1 Nd2 Rb6 Nc4 Rb5 Nb6 Rf1 h1Q Nd2 b1N Nf3 Na3 Ra5 Nb5 Bf5 Nbc7 Rc6 Ne6 Nf2 Qhh3 Ng1 d2+ Ke2 Kf7 b8R Kf6 e8B Ke7 Qe1 d1N Bb1 d3+ Kd2 Ne3 Ba2 Nf5 Rd6 Nfh6 Bb2 Qgd5 Be5 Qdg2 Kc3 d2+ Bg3 d1N+ Kd2 Nb2 Bd7 Nd3 Rd4 Nf6 g8Q Bg7 Rc8 Ndb4 Rc6 Qgh1 Rcd6 Qag2 Qa8 Re8 Qd5 Nfg8 Nf3 Q1h2 Rh1 Qhg1 Rh2 Q1h1 Ng1 Be5 Qc5 Qa8 Qd5 Q3g2 Rh5 Qhh3 Rh4 Nf5 Rh8 Nfh6 Rc4 Ba1 Rd4 Bb2 Bh4+
Br2Nq2/3rP3/RbQn3N/B2q1r2/2pN1BRk/N1r2r2/6rn/q1Q1K3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 d4 Ke7 b4 Kf6 e4 c5 b6 h5 d5 a5 b7 h4 d6 c3 b5 h3 b6 c2 d7 c4 Be3 c1R Na3 a4 Nc2 h2 Nb4 a3 Be2 a2 Na6 Ra7 Bd2 Bc5 Nb4 Na6 b8N Qf8 b7 Bb6 Nf3 Nh6 Rg1 h1Q Nd4 Rc3 Nbc2 Nc7 Bf3 Ne8 Na6 Nd6 b8B Qh5 d8N Qd5 Na3 Rd7 g5+ Kg6 e5 f5 e6 f4 e7 Ng4 Be4+ Kh5 g6 f3 g7 Kh4 g8Q Nh2 Qc1 Rh5 Nf7 Rf5 Nh6 f2+ Ke2 f1R Qg6 R1f3 Nc7 Bc5 Ke1 Bb6 Rf1 g1R Ne8 Rg2 Rg1 Rg5 Bc7 Rgf5 Bf4 Rb2 Bd8 g2 Bc7 Qdf7 Ba8 Qd5 Rf1 g1R Bd8 Rg4 Rg1 Rgg2 Bc7 Ba7 Ba5 Rb8 Qe6 Bb6 Qe4 Qdg8 Qc6 Qd5 Rb1 Ba7 Rb6 a1Q Ra6 Bb6 Bb4 Rb2 Ba5 Rbc2 Rg6 Rg2 Rg4+
3r4/3RnnQQ/n1n2KRq/b6r/1q2QQ1N/1q2N1qB/1pP3NB/n1k5 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Nb1 f5 exf5 g5 Qg4 Bg7 Qd1 Bf8 g4 b6 f4 gxf4 g5 Bb7 h3 Bd5 Ke2 Bf3+ Ke1 Bg4 hxg4 Ra3 Be3 Ra5 Bc1 Ra8 Ke2 Kf7 Kd3 d5 a4 h5 a5 e5 g6+ Kf6 g7 Kg5 f6 b3 a6 b2 f7 h4 a7 b5 Qf3 e4+ Ke2 e3 Kd3 b4 Qe2 h3 Ra6 h2 Rd6 b3 Qf2 f3 Rf6 Qd6 Qg3 f2 Bh3 f1N Qf3 Rh5 Nc3 b1Q Na2 Nc6 Qe2 Qb4 Qe1 Nd2 Ba3 e2 Rh6 Kf4 g5 Nge7 g8N Rd8 Qc1 e1Q a8Q Qg3+ Nf3 b2 Qe1 Nb3 g6 Na1 Nc3 Qa2 g7 Qab3 Rg1 h1Q Nf6 Qhh2 g8Q Qh1 Kd2 d3 Rg6 d4 Qa7 Bg7 f8Q Bh8 Kd1 d2 Ke2 d1N Kd3 Ne3 Ng4+ N3f5 Qh7 Be5 Rg2 Bc7 Ne3 Ba5 Rd2 Qhh2 Qfg7 Nd6 Nh4 Nf7 Qc5 Qh1 Qc4 Qhh2 Ng2+ Kf3 Nf5 Qh1 Qee5 Qc1 Rd1 Qh6 Nfh4+ Kf2+ Ke4 d3 Nd5 Ke2 Qcd4 d2 Qe6 Qe1 Nde3 Qg3 Rb1 d1N Qf5 Q4a4 Bd6 Qab4 Qc4+ Kd2 Qf4 Nce5 Kd4 Nf2 Re1 Nfd3 Rd1+ Ke2 Ke4 N5c6 Qcd4 Q4a3 Qde5 Ndb4 Bb8 Na6 Rd7 Qab4+ Qd4 Nd5 Qc4+ Kd2 Be5 Ng5+ Kf5 Kc1 Qce4 Nde7+ Kf6 Nf7 Qg5 Qg4 Bh2 Qg3 Qgf4
Nrn4K/B4kr1/2q3qQ/2R1q1QB/brN4b/3rPr1R/1p5B/q1Q4Q b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 h4 g5 g3 Nc6 Nf3 Nd4 Ng1 Ne6 Kf2 g4 Ke1 Ng5 hxg5 fxg3 a4 c5 d4 b5 Kd2 h5 Kd3 f5 d6 g2 a5 c4+ Ke3 b3 Kf4 c3 Ke5 g3 d5 b2 a6 b4 a7 b3 g6 c2 g7 f4 d7+ Kf7 d6 f3 Be3 c1Q Na3 b1R Nh3 g1R Nc4 g2 Nf4 h4 Nd5 h3 Nc7 f2 Ra5 h2 Rc5 Rb8 Na8 Qa5 d8B Rh3 d7 Be7 Bc7 Bh4 d8Q Ne7 Q8d6 Bd7 Qh6 Nc8 Bd4 Qcc3 Qdc1 Rd3 e3 Ba4 Be2 f1R Bg4 Qb6 Bh5+ Qg6 Bd6 Rf3 Bc7 Ke7 g8Q Rb4 Qd8+ Kf7 Qdg5 b2 Nab6 Ra1 a8Q Ra3 Qc6 Rab3 Na8 Rb8 Rd5 Qa5 Ba7 R3b4 Rb5 Re1 Rc5 g1Q Qe4 Qg2 Rg1 Qh1 Rg3 Rg1 Rh3 Qg2 Qc6 h1Q Qe4 Qg4 Qb7 Qd7 Qe4 Qc6 Bd6 Rf4 Qf3 Qh2 Qh1 Rf3+ Rg3 Bc2 Qg4 Qa1 Bc7 Ba4 Qgf4+ Kg8 Rh3 Qge8+ Kf5 Rg7 Bd6 Rf7+ Kg6 Qe6+ Qf6 Qf4 Qg5 Rg7+ Kh6 Qfe4 Bh2 Q6e5 Qe6+ Kf8 Qeg6 Rg8 Kh7 Rg7+ Kh8 Q4f5 Q6h6 Qfg6 Na5 Kf7 Nc4
1qBr1Qn1/2qbnn2/Kb6/B2N2Q1/2p1N2R/kB2R2P/Bn2b3/Q3n2b b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 g4 exf4 b4 h5 Nh3 hxg4 Ng1 a5 Ba3 a4 Bc1 Ra5 bxa5 Bc5 Ra2 Be7 Ra1 Bf8 d4 Kd7 Kd2 Kd6 Kc3 f5 Kb4 c5+ Kc3 g5 e4 a3 b6 a2 h3 f3 b7 f4 d5 f2 a6 g3 a7 g2 a8B f3 Nd2 g4 Qb3 g3 Qa4 Nc6 b8Q+ Qc7 Bd3 f1B Qc2 f2 Qa4 Be2 Bb7 f1B Bc2 Nce7 Bb3 Bd7 Bc8 Bf3 Rb1 a1N Ne2 g1Q Nf4 Nc2 Qa1 g2 Ba2 Bd3 Rb4 Qh2 Re1 g1N Re3 Bde2 Bb3 Bh1 Qb5 Ke5 d6 Nf3 Nd5 Ng5 Qba5 Ke6 e5 Ne1 Ne4 Nf7 Bd2 Qb8 Qd8 Bh6 Qf8 Qf4 Kb2 c3+ Ka3 c2 Ra4 c1N Ba5 Ncd3 Rc4 Kf5 e6 Nb2 Ra4 Ke5 Rc4 Bc6 d7 Qh2 d8Q Bd7 Rd4 c4 Ba2 Qc7 Kb4 Bg5 Qh6 Bh4 Qdf8 Bf2 Qh4 Nc6+ Kb5 Nce7+ Ka6 Qg3 Ng5+ Kd6 Ne4+ Kc6 Qf6 Qb8 Qg5 Qgc7 Nd6 Kc5 Rh4 Nf5 e7 Bg1 e8B Nfe7 Bd2 Bf2 Nc3+ Kb4 Nd5+ Ka4 Bc3 Ka3 Ne4 Bdg4 Ba4 Bd7 B4b3 Bg1 Rg3 Bb6 Re3 Nf6 Qfg7 Rd8 Ba5 Nfg8 Qf8
Rqk1bBr1/3RrB2/1NB1qRQ1/q2P4/6N1/2q2B1K/1b1np2b/2b3qQ b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 b5 a4 g5 hxg5 f5 g6 f4 g5 Nc6 c3 Nd4 c4 bxc4 f3 Nb5 axb5 Bg4 Be2 Bxf3 Bd3 Bg4 Bf1 Bc8 Kf2 Kd7 Kg2 e5 d4 h5 b4 c5 g7 a5 d5 c3 b6 a4 b5 c2 g6 f3+ Kh3 e3 b7 h4 b8R a3 b6 a2 b7 e4 Kg4 e2 Na3 e1Q Bd2 c1Q Rb1 a1B Rb2 c4 Nc2 f2 Bh6 e3 Bh3 f1Q Nf3 c3 Nd2 e2 Rb6 Qf7 Ne3 c2 Rf6 Ra7 Ra8 Bb2 b8Q Bd6 Ndc4 Bh2 Qb6 Qa5 Bg2 h3 Bf3 Qe6+ Kh4 Bb7 Ng4 Bc6 Qbg1 Kc7 Nb6 Qb8 Qg2 Be8 Qd3 Ne7 g8B Nc6 g7 Nd4 Qg6 Nb3 Bf7 Nd2 g8B Qca1 Bh7 c1B Bf8 Rg8 Rg1 Qc3 Qh1 Qaa5 Rg2 Bd6 Rf2 h2 Kh3 Bf4 Qe4 Kd8 Bf5 Re7 Qc2 Bc7 Bd3 Be5 Bb5 Bd6 Bc6 Kc7 Qf1 h1Q+ Rh2 Qg1 Qg6 Kd8 Rf2 Bh2 Qg2 Ba3 Rf1 Bcb2 Ra1 Bc1 Qh1 Bab2 Ra3 Qab4 R3a7 Qa5 Na4 Kc8 Rc7+ Kd8 Rd7+ Kc8 Nb6+
2Q4q/b2bK1N1/P3B3/3b4/NRrprrR1/1nBQR3/B5qr/1Bb1b1k1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 h5 f4 hxg4 Na3 e5 Nb1 e4 Bb5 Nc6 Bf1 Ne5 fxe5 Qf6 Bd2 Qg5 Bc1 Qd8 Kf2 Ke7 Kg3 g5 a4 b5 c4 d5 h4 e3 a5 d3 h5 e2 f6+ Ke6 a6 Kf5 e6 Ke4 c5 e1B+ Kg2 b3 h6 b4 c6 b2 h7 d2 f7 Ke3 e7 g3 e8B b3 c7 g4 Nh3 Bd7 c8B Nf6 Be2 Ne4 Na3 b1B Bc4 b2 Nf4 Nc5 Rh3 Bh6 f8R Ba2 Nh5 b1R Rg8 Rb4 Bg6 Nb3 Bb2 Qf8 Qb1 d1R Bc3 Rd4 Nb5 Re4 Ng7 Ra7 Qd1 Rc7 Rb1 Rc6 Bf5 Rf6 Be6 Rff4 Bd3 Rbc4 Qc2 Na5 Rb4 Nb3 Qd1 Qf6 Bb1 Qd4 Ba1 Bg5 Nc3 Qe5 Na4 Qf6 Kh1 Kf2 Bc3 g2+ Kh2 Qf8 Re3 g3+ Kh3 g1B Qd3 g2 Ne8 Bh6 Rg4 Qg8 Kh4 Qg7 Re2+ Kf1+ Kh5 Ba7 Re3+ Kg1 Bg8 Qe5+ Kg6 d4 Ng7 Rf2 Rf3 Bc1 Re3 Rff4 Bd5 Kh2 Be6 g1Q Bb7 Qb8 Bbd5 Qg2 Kg5 Kg1 Kg6 Rhf8 h8Q R8f6+ Kg5 Rh6 Qc8 Rh2 Rgg3 Rg4+ Kf6 Rgf4+ Ke7 Qe5 Rg4 Qb8 Qc5 Qh8 Qc8 Nd2 Qc6 Rc5 Bc4 Bb3 Bb5 Bd5 Qc8 Rc6 Bc4 Rc7 Bca2 Rc4 Qc2 Nb3 Qd3
nQ3Q1q/r2Rp1q1/1P3q2/bqB2Rb1/1r1BNb2/3k1KbB/2BN3R/b7 b - - 0 1 legal: proof: d4 f5 a4 b5 f4 bxa4 g4 c5 e4 fxe4 f5 cxd4 f6 Ba6 Nc3 Bb7 Nb1 Bc8 h3 g5 Qe2 Bb7 Qd1 Bd5 Be2 Be6 Bf1 Bf5 gxf5 Nc6 h4 g4 Bd2 Ne5 Bf4 Nf7 Bc1 Ng5 hxg5 Qb6 Ne2 Qc7 Ng1 Qd8 Ke2 Kf7 b4 a5 c4 h5 c5 d5 c6 d3+ Ke3 a3 c7 h4 c8B d4+ Kf4 h3 b5 a2 b6 g3 Nd2 e3 Be2 g2 Nf1 d2 Kg3 h2 Bc4+ Qd5 Qa4 d1Q Bd7 d3 Qa3 d2 Bb3 e2 Ne3 e1B+ Kf4 a4 Bc8 Rh4+ Ng4 Ra7 Ke3 Bh6 Qc5 a3 Kf4 Bg3+ Ke3 Qf1 Qc7 d1Q Nf2 Rb4 Bc2 Qg4 Qb8 Qdb5 Nf3 g1B Nd2 Qd4+ Kf3 Qde5 Rb1 a1B Bd7 a2 Ba3 Bc3 Rd1 a1B Bc8 Qfe1 Nfe4 Be3 Rf1 Bef4 Rf2 Qef1 g6+ Ke8 g7 Kf7 Bd7 Bhg5 Bc8 Qg1 Bd7 h1Q+ Rg2 Qh4 Rh2 Qh8 Rf1 Nh6 g8R Ng4 Rd8 Ne3 Bc8 Qd6 Rd7 Nd5 Rff2 Nc7 Rf1 Rd4 Bc5 Ba5 Rff2 Rb4 Rf1 Kf8 f7 Kg7 f6+ Kg6 f8B Kf5 f7 Na8 Bg7 Qe6 Bb2 Qef6 f8Q Qd4 Rc7+ Ke5 Bh3 Kd5 Bc3 Qde5 B3d4 Qfg7 Nb3 Kc4 Rd7 Qef6 Ke2 Bd2 Rf5 Bc1 Kf3 Bcf4 Bd1 Kd3 Nbd2 Bc7 Bb3 Bcf4 Bc2+
b4b2/2B1n3/B1bnnQ1b/1PpR3n/1RR4K/1b1r2Q1/Q1Q2n1N/r4Nk1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 exf4 g3 g5 Nf3 g4 Ng1 Qg5 hxg5 fxg3 b4 Ke7 e4 Kd6 d4 c5 d5 Ke5 g6 f5 d6 h5 d7 a5 d8Q f4 b6 a4 b5 g2 Kf2 a3 g7 g3+ Kf3 a2 b7 h4 Be3 c3 Ne2 g1N+ Kg2 c2 Nbc3 c1B Q8d3 Be6 Na4 Nd7 b8R Nf3 Bd2 Ndf6 Nb2 Ne7 g8Q Nd4 Rd8 h3+ Kg1 f3 Rb1 a1N Ba5 g2 Kf2 g1N Kg3 h2 Bg2 f2 Q1c2 f1B Nd1 Bb3 Nf2 Nh5+ Kh4 Nh3 Ng3 Kf4 e5 Ne6 Bb7 Bg2 Ng4 Bc6 Bc7 Nf2 Ba6 Rh6 Re1 h1B Rd5 Rd8 Qa2 Nc2 Nh2 Na3 Qdc2 Nc4 Ngf1 Nd6 Qg7 Bd2 Rec1 Ra8 Rb2 Rg6 Qh8 Rg3 Qg7 Rd3 Qf6+ Ke4 Rbb1 Bdh6 Rb2 Nef4 e6 Ra7 Ng4 Kf3 Ngh2+ Kg2 Rbb1 Nec8 e7 Ne6 e8Q Ne7 Qb8 Kg1 Rb2 Ba4 Rb4 Bb3 Rdd4 Ba8 Rdc4 Bhc6 Rd1 Rg3 Rd5 Rd3 Bc8 Ra3 Ba6 Ra4 Qab2 Ra1 Qa3 Kg2 Qaa2 Kg1 Qc8 Nd4 Qh3 Ne6 Qg3+
Q1qk4/RbN1Q2r/1n3q1p/1B1Bnr2/3q1B1B/N4n2/1qP3r1/2QnRK2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 e4 d5 b4 a5 g6 f5 g7 g2 e5 a4 b6 f4 b5 d3 e6 a3 b7 a2 e7 f3 b6 g3 Rh6 f2+ Kd2 d4 Ne2 g1N Bh3 f1Q Nf4 g2 Rh4 h6 Bb2 Rh7 Rh5 Nf6 g8B Nfd7 Qc1 Nc6 b8B Bb7 Re5 Qc8 Nd5 Qf6 Ke1 Ra5 Na3 Nf3+ Kf2 g1R Re1 d2 Bf1 d1Q Bb5 d3 Bf4 Rg3 Kf1 d2 Bd4 Rg6 Bf2 Rg2 Bh4 Nce5 Be6 Bc6 b7 Nb6 Bg8 Kd7 b8Q Ke8 Be2 Bb7 Qa8 Kd7 Nc7 Rd5 Rb1 a1Q Rb3 Qb2 e8Q+ Kd6 Qf8+ Kd7 Qg7+ Kd8 Bb5 Ng6 Rb4 Rf5 Ra4 Nge5 Ra7 Qd4 Qa1 Qb1 Bd5 Qbb2 Qc1 d1N Qe7+
2nn1q1Q/b3RPqB/b2Q1N1b/2p2NQ1/b1r2QR1/2B1q1q1/1nk5/K4R2 b - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 b4 fxe4 h4 g5 Nc3 gxh4 Nb1 a5 Ra3 a4 Ra1 Ra5 bxa5 Bh3 Qe2 Bd7 Qd1 Bc8 f4 Kf7 d4 Kf6 Kd2 Kf5 Kc3 h5 Kb2 e5 d5 c3+ Ka2 a3 a6 e3 g4+ Ke4 d6 c2 g5 h3 g6 e2 f5 e1Q d7 h4 f6 h2 b6 h3 b7 Bh6 g7 Nc6 b8Q Qg3 a7 Ba6 a8Q Ne7 g8Q Nc8 f7 Qf8 Bf4 c1Q d8R Qce3 Rd5 Nd8 Nf3 c5 Rg1 h1N Qba7 h2 Qe7 Nf2 Bg2 h1B Qc7 Nd3 Qg5 Nb2 Qd2 Rg8 Qd6 Rg6 Qc1 Rg8 Nd4+ Kd3 Nc3 e4 Be5 Rh8 Kb3 a2 Bh3 Bf3 Bf5 Bd1+ Ka3 Bb3 Bh7 Ba4 Qf1+ Kd2 Nf5+ Kc2 Qff4 Rg8 Raf1 a1B Qh5 Rg4 Ka2 Qd4 Bh8 e3 Ne4 e2 Re5 e1Q Qhg5 Qee3 Re7 Qdg7 Nf6 Rh4 Qff3 Rc4 Qff4 Nd3 Qh1 Be5 Qa8 Nb2 Ka1 Qh2 Rg4 Qhg3 Qe6 Bc7 Qed6 Bb8 Ng8 Qg6 Bc3 Ba7 Nf6 Qgg8 Qg7 Qh8 Qad5 Qhg8 Qh8 Qgg7 Q5e5 Nd1 Qg5 Nb2 Qef4
2NR3B/2q1Np2/1q3Nr1/n2bB1nn/1Qq1b2k/bQ6/K5P1/B2bnBR1 b - - 0 1 legal: proof: f4 a5 b4 b5 d4 g5 h4 gxh4 a4 e5 axb5 exf4 c4 c5 b6 cxd4 b7 a4 c5 Ra6 b5 Rb6 cxb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kd2 Ke7 Kc2 Kf6 Kb2 Kg5 e4 d5 e5 h5 e6 a3+ Ka2 d3 e7 h3 e8N d4 Ne2 h2 Ng7 h4 Nf5 h3 Nbc3 d2 Ng7 f3 Na4 f2 Qc2 d3 Kb1 a2+ Kb2 Qc7 Nd4 Rh6 Nc5 Kh4 Nge6 d1B Rb1 a1N Ka2 d2 Nc6 Bf3 Ne4 d1B Rg1 h1N Na7 h2 Nd4 Nc6 b8B Be6+ Qb3 Ng3 b7 h1Q b6 Ba3 Nf6 Nh5 Nc8 Rg6 Bb2 Nc2 Ba1 Na5 Nc6 Ne1 N6e7 Be4 Rb2 Qhh2 Rd2 B6d5 Rd4 Qc5 Be5 Qg3 b8Q Qb4 b7 Qb6 Bc4 f1Q Qd6 Qfd3 b8B Qc3 Bd3 Qc4 Bf1 Qf4 Qb4 Qcc7 Ng4 Ngf6 Ba7 Nh7 Nf6 Ng5 Rd3 Qb5 B7d4 Qbb6 Bdb2 Be6 Rd8 B6d5 Nh7 Qfc1 Bh8 Q1c3 Nf6 Q3c4 Be5
1Rb2q1r/1B1rPk2/4qr2/bb1Rq1RQ/1n1BbrN1/Np1Q1Q1K/8/7Q b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 h4 g5 g3 Nc6 Nf3 Nd4 Ng1 Ne6 Kf2 g4 Ke1 Ng5 hxg5 fxg3 a4 c5 d4 f5 e4 b5 d6 h5 g6 c4 g7 h4 e5 b3 d7+ Kf7 d5 c3 d6 c2 a5 b2 a6 g2 Kf2 h3 Kg3 h2 a7 f4+ Kf2 g3+ Kf3 b4 Kg4 f3 Ra6 b3 Qd3 f2 Na3 b1B Nh3 g1Q Ra5 g2 Bb2 c1Q Bd4 Qb2 Rd5 Ne7 g8R Nc6 Rg5 Nb4 Qf3+ Qf6 Bc4 f1B Ba6 Be4 Nf2 Bb5 Bb7 Qf1 Rg1 Rb8 a8Q h1R Kg3 Bg7 d8Q R1h4 d7 Rf4 Ng4 Qe6 Qda5 Bh6 Rh1 g1R+ Kh4 Qff2+ Kh3 Rf1 d8Q Rf6 Qd6 Rd8 Rg1 Rd7 Rg8 Bd2 Qda6 Bc6 Qad3 Bb5 Qh1 Qff5 Rg3 Rf4 Rh8 Qd6 Rg2 Qf8 e6+ Ke8 e7 Kf7 Rg8 Qe6 Rgg5 Bc3 Rc2 Bd2 Rc6 Qc3 Rb6 Qc7 Qdf3 Qce5 Q8a6 Ba4 Qc4 Bb5 Qcd3 Na6 Kh2 Q5d6 Kg2 Qg8 Rg6 Ba4 Qab5 Ba5 Rf5 Nb4 Ba6 Bcb7 Kh3 Rbd8 Qc5 Bc8 Rb8 Bb5 Bb7 Qg7 Rh5 Rh8 Qg5 Qc7 Qh6 Qg8 Rd5 Qf8 Rgg5 Qce5 Qh5+
4Q1QN/N1p1k2q/qn1N1R2/R5KB/R2bbn1n/1qnR3P/5B2/b3rq2 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 f4 dxc4 h4 exf4 e3 g5 Bd3 gxh4 Be2 h3 Bf1 h2 Ke2 h5 Ke1 a5 Bd3 h4 Ne2 h3 Rg1 h1N Rf1 h2 Rf2 Rh3 gxh3 Ra6 Qa4 Rh6 Qd1 Rh8 b4 f5 b6 a4 b5 a3 e4 f3 e5 c3 b7 f4 b6 a2 e6 c2 e7 Rh6 Bg6+ Kd7 e8N Ne7 d4 Ng3 Kd2 h1Q d5 Ngf5 d6 Nd5 Qe1 Qh4 Nbc3 Bg7 Nb5 Bd4 Bh5 Re6 Na7 Nc3 Kd3 Qe7 Be3 c1N+ Kd2 Kd8 d7 Qh7 Nd6 Ke7 d8R Nd7 b8R Nd3 b7 Nh4 Ra8 Nb6 b8Q Bb7 Rf1 Qg2 Bf2 Qgg8 Qc8 Re5 Qg4 Qe6 Qg8 Bc6 Rf8 Re3 Rf6 Be4 Rd1 a1B Rg1 Bc5 Rg5 Bd4 Ra5 Qb3 Ng3 Bd5 Nf7 Re5 Nh8 Be4 Nf1 Re6 Ne3 Re5 Nc4 Re6 Bg1 f2 Nd6 f1Q Bf2 f3 Ra4 Nf4 Ra5 Be5 Ke3 Qfb5 Rd3 Qa6 Bg1 f2 Ra4 f1Q Bf2 Bf5 Ra5 Nhg2+ Kf3 Be4+ Kg4 Bd4 Kg5 Nh4 Rb8 Nd7 Rb4 Nb6 Rba4 Bf5 Qd1 Re1 Qg4 Bg6 Q4c8 Be4 Qce8#
6nn/2bq2nk/1n2bRbB/R1P1N1K1/b6Q/p2n1R2/3QQr2/nB1NQ3 b - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 f5 b4 Kf7 c4 Kg6 e4 d5 c5 h5 b6 a4 e5 d3 Ke3 g2 Kf4 d4 b5 h4 b7 d2 e6 d3 e7 h3 e8R h2 b6 g3 Qg4 d1N Re2 d2 Ra3 Nd7 b8Q Ngf6 b7 Nf2 Nh3 d1B Rd2 g1N Bc4 g2 Qf3 Ne2+ Ke3 g1N Qfg3 Bd6 Rb2 f4+ Kd2 f3 Ke3 Bc7 Nd2 Nf4 Rbb3 Rf8 Qh4 Nge2 Rf1 h1B Bd3+ Kg7 g6 Nd4 Rc3 Nb3 Nc4 Na1 Ne5 Kg8 g7 Ng6 Qa7 Nh8 b8Q Bb3 Qba8 Nb6 Kf4 Bce6 Qd5 Qd7 Bb1 Bc2 Qa6 Rf7 Rab3 a3 Rb5 Ba4 Ra5 Bg2 Qa2 Bh1 Q6e2 Rf8 Re3 Nd3+ Kg3 Bg2 Nf2 Rf7 Nd1 f2 Bd2 Bf3 Bc1 Bh5 Qac2 Kh7 g8Q+ Kh6 Qa8 Ng8 Qah1 Rf5 Kh3 Kg7 Rg3+ Kh7 Bh6 Bg6 Kg4 Rf7+ Kg5 Rf4 Rfg1 f1N Qcd2 Ne3 Rf1 Nf5 Rf2 Ng7 Qhe1 Rd4 Rf7 Rf4 Rf6 Rf2 Rgf3
2QR3Q/3prRbk/4R3/5r2/3PbBnN/1N1bB1rb/2N4r/Knn2bR1 b - - 0 1 legal: proof: f4 c5 a4 e5 g4 exf4 b4 b5 axb5 cxb4 Na3 f5 Kf2 h5 Ke1 f3 Nb1 f4 Bg2 Qf6 Bh3 Qf5 gxf5 Nf6 Bg4 hxg4 Kf1 Ng8 Kf2 Rh3 Ke1 Rh8 e4 Kf7 h4 a5 c4 g5 d4 Kg7 Kd2 f2 Kc2 f1B Kb2 f3 f6+ Kh7 b6 b3 c5 a4 f7 a3+ Kc3 f2 e5 b2 b7 g3 e6 g2 h5 g4 e7 a2 e8Q g3 c6 Na6 b8B Nc5 h6 Nf6 c7 Ng4 Nd2 b1B Kb2 Nb3 Ngf3 g1N Ne1 g2 Nc2 Bb7 c8R Ne2 Rd8 g1R Bf4 Bg7 f8R Nc3 Rf7 Rg3 Rg1 Be4 Qe1 Bed3 Q1e5 Bh3 Qb8 f1B Qc8 Ra5 Qe5 Kg6 h7 Be4 Qeb8 Rf5 Be3 Re8 h8N+ Kh7 Ng6 Re7 Nh4 Bed3 Nc4 Be4 Na5 Bed3 Bcd2 Nc1 Nb3 Be4 Bf4 Bed3 Bde3 Be4 Nb4 Bbd3 Nc2 Nb1 Qa8 Nd2 Rb1 a1R Qab8 Ra7 Qa8 Rc7 Ka1 Rcc5 Rb2 Nb1 Ra2 Rh5 Ra6 Rcf5 Re6 Bhg2 Nf3 Rh2 Nh4 Bh3 Qa3 Re8 Qf8 Re7 Qh8#
1R4R1/NN1pP1B1/Qb2r1n1/b3B2n/bb2R3/1Q2Rrk1/1n2K2n/n1r3N1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bg2 Qf6 Bh3 Qf5 gxf5 Nh6 Bg4 hxg4 Ra2 Ng8 Ra4 Rh3 Ra1 Rh8 c4 Ke7 h4 Kd6 e4 Ke5 b4 a5 f6 g5 h5 f2+ Kd2 f1R c5 a4 b6 d3 f7 g3 b5 g4 b7 g2 b6 a3 h6 a2 h7 f3 c6 Kf4 c7 f2 e5 g3 e6 Ra3 Qe1 Bb4+ Kd1+ d2 f8R+ Nf6 e7 Rf3 Rh6 Nc6 b8Q Ba6 c8N+ Ne5 b7 Bb5 Bb2 Ba4+ Ke2 d1N Rg8 Nh5 Nd6 Ng6 Bg7 Nb2 Nc3 Kg4 Qd2 Rc1 Ncb5 f1N Na7 Nh2 Qd3 Kh4 Rb1 a1N Qb3 Kg4 Qc8 Ba5 b8R Kh4 Nh3 g1B Qa6 g2 Nb7 Bc5 Ng1 Bcb4 Be5 Rd1 Bg7 Kg3 Rc1 Rd6 Rc3 Rc6 Re3 Rc1 Rgc8 Rf8 h8B Rf6 Rg8 Re6 Rh7 Nf6 Rh4 Nh5 Nh3 g1B Rhe4 Bf2 Ng1 Nd1 Rc3 Bfb6 Rce3 Nb2 Bd4 Kg2 Bhg7 Kg3 Bde5+
q2Rq2q/BBK2n2/1Rn4P/N2q1R2/kqr3QQ/B2r2N1/2q2pq1/2B3r1 b - - 0 1 legal: proof: c4 a5 g4 h5 d4 hxg4 b4 axb4 e3 d5 Bh3 dxc4 Bg2 Nh6 Bf1 Ng8 f3 e5 Be2 e4 Bf1 Bc5 d5 Bd4 exd4 e3 Bb2 Bf5 Bc1 Be4 fxe4 Rh3 Bb2 Rh6 Bc1 Rh8 Ke2 Kd7 h4 c5 a4 g5 e5 b5 h5 f5 a5 g3 Kf3 e2 d6 Kc6 e6 e1Q a6 b3 e7 g4+ Kf4 b2 e8R g2 a7 b4 d7 Kb5 d5 b3 d6 g3 Re7 Nh6 Ne2 g1R Ke5 c3 Bh3 c2 Ra3 c4 Rg7 f4 Bg4 c3 Bf3 g2 Be4 f3 Rg5 f2 Nd2 b1Q Ng3 b2 Rb3+ Ka4 Rf5 Qa1 Qg4 b1Q Rb6 Qb4 Nc4 Nf7+ Kd5 Qe3 h6 Nc6 Na5 Rc8 a8Q Qe2 Ba3 c1Q Rh4 Qf6 d8B c2 d7 Qcg5 Qa6 c1Q Qc4 Qaa2 Be7 Qg8 d8B Qcc2 Bc5 Qed3+ Bd4 Qe8 Rh3 Qg7 Bg5 Rh7 Rh5 Qgh8 Bgc1 Rg7 Rh1 Rd1 Rf1 g1Q Qh4 Rd2 Rd1 Qg2 Qg4 Qdf3 Qh4 Qa1 Qe2 Qh5 Qeg4 Rd3 Bf3 Ne7+ Ke6 Rc4 Bb7 Qaa2 Bc5 Qa8 Bd4 Nc6 Kd7 Qg6 Kc7 Qe6 Rf1 Qee8 Rd1 Rdc3 Qe4 Qf1 Nh1 Rg1 Ra6 Qg2 Ba7 Rc5 Rd8 Rd3 Ng3 Qd5 Rb6 Rc4 Qeg4
nbQb2k1/q2nb1q1/Nb1PB1B1/B7/b3b3/b2p1QN1/2R1R2B/1Nn4K b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 fxe6 Be2 e5 Bf1 e4 d3 b5 Bf4 g5 Bc1 c5 Qd2 Ra6 Qd1 Rd6 Ba3 d4 Bc1 Rd5 cxd5 c4 Kd2 c3+ Ke1 Rh6 Bg2 Rc6 Bf1 Rc4 dxc4 Bb7 Be3 Ba6 Bc1 Bc8 f4 Kf7 Kf2 e5 Kg2 e3 h4 c2 a4 g3 a5 g4 d6 e4 h5 b3 a6 b4 f5 b2 a7 e2 a8N e1B f6 e3 c5 e2 c6 b3 h6 Bb4 h7 e1B h8Q Nd7 c7 Be7 Qh2 Ba3 Qh4 Qf8 Qe2 Nb6 Qh2 Bd7 c8B Ba4 Qh8 Ba5 Nh3 Qg7 Bf4 c1N Nc7 Na8 Na6 Bad8 Rh2 Kf8 Kg1 g2 Qf3 Kf7 Be6+ Kf8 Nd2 b1B f7 b2 Nf2 Be4 Bd3 b1Q Nh1 Qb7 Nb1 Qa7 Qhh3 Nf6 Ng3 Nd7 Ra2 Bac6 Re2 Ba4 Kf2 g1B+ Kg2 Be3 Kh1 Bf2 Rc2 Be3 Rhe2 Bg1 Bdc4 d3 Bd2 Bgc5 Ba5 Bcb6 Bf5 Bbc7 Bce6 Bb8 Bg6 Bf6 Nf1 g3 Qf5 Bfe7 Qc5 Qe5 Qc8 Kg7 f8B+ Kh8 Bh3 Kg8 Bh6 Qg7 Bf4 g2+ Kh2 g1B+ Kh1 Na2 Bh2 Nc1 Ng3 Bb6 Be6+
QN4Q1/2B1Bn2/b2N1n2/R1RPr1Q1/1K3bb1/n5Bb/k5pb/bB3n1n b - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 f4 dxc4 b4 a5 f5 axb4 h4 b5 g5 Qd5 Bh3 Kd7 Bf1 Qf7 g6 Ra3 gxf7 g5 Qf3 g4 Qb3 Ra6 Qf3 Rg6 Qd1 Rg5 hxg5 Bb7 Rh3 Ba6 Rh1 Bc8 a4 Kc6 d4 Kd5 Kd2 h5 g6 c5 f6 e5 a5 e3+ Kc2 g3 a6 b3+ Kc3 e2 g7 e1N a7 e4 a8Q+ Nc6 Rh3 b4+ Kb2 g2 Rh1 h4 Ra7 h3 Re7 h2 Qe2 e3 Qa3 c3+ Ka1 c4 Nh3 b2+ Ka2 c2 Qc3 b3+ Ka3 Nf3 Qcd2 c3 Qf2 e2 Qh4 Kc4 d5+ Bg4 Qhg5 Rh5 Qf5 Nce5 Qdg5 Nd2 Nf4 Bh3 Nd3 e1N Be2 Nf1 Bf4 c1B Bg3 c2 Nc3 Bf4 Nb5 b1B Nd6+ Kc3 Rg1 h1N Ra7 b2 Ra5 c1B Nb4 Bd3 Nc6 Ba6 Nb8 b1B+ Ka4 Kb2 Kb4 Bc2 Qc8 Bd1 Bd3 Bdg4 Bb1 Be7 f8B Nf7 Rc5 Ka1 Qc6 Bb2 Qa8 Bd8 Be7 Bc7 Nb5 Bce5 Nd6 Bbd4 Bd8 Bb2 Bc7 Nc2+ Ka4 Na3 Kb4 Nfh6 f7 Nf6 f8B Nf7 g8Q Bbd4 Bc2 Ka2 Be7 Ba1 Ra5 Nd2 Rc1 Nf1 Bh4 Bh2 Bg3 Bf4 Bf5 Ne3 Rcc5 Nf1 Qh4 Rg5 Be4 Rf5 Qhg5 Re5 Bb1+
1B1NBbrN/R6b/3N2bq/qr3rr1/krP3p1/3b3R/rR5Q/1RKQ4 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 Be3 g5 Bf4 Ne7 Bc1 f4 h3 Nf5 gxf5 Nc6 h4 g4 Bd2 Ne5 Be3 Nf7 Bc1 Ng5 hxg5 Kf7 Bg2 Ke7 Bf1 Ke8 Kd2 h5 e4 b5 a4 d5 a5 Kd7 e5 Kc6 e6 d3 c3 f2 g6 h4 e7 f3 e8N d4 a6 b3 f6 h3 g7 b2 g8R b4 f7 Kb5 a7 b3 Rg5+ Bf5 Qe2 h2 Rg8 Bg6 Ng7 Qa5 Na3+ Ka4 Nh3 b1R Nf4 b2 Nge6 Rb8 a8R Rb5 Bg2 f1B Ra7 f2 Nd8 Rg5 Kd1 d2 c4 Rb5 Qe5 Bfd3 Bc6 f1R+ Qe1 Rh5 Be8 Rg5 Ra2 Bh7 Ng6 Rff5 Rh8 Ra1 Rg1 b1R Rb2 h1Q Qe2 Qh5 Qh2 Ra2 Re1 Qh6 Rf1 Bd6 f8Q Bb4 Qfd6 Bc5 Rc2 Rb4 Qd7 Bf8 Rb2 Be2+ Kc2 d1R Bf4 Re1 Bb8 Bd3+ Kd2 Re7 Rd1 Rg7 Rb1 Rg8 Kd1 Bf1 Kc1 d3 Ne5 Be2 Nef7 Bg6 Rh7 Bf1 Nh8 d2+ Kc2 d1B+ Kc1 Bc2 Qd1 Qg7 Rh5 Qh6 Rh3 Bd3 Rd7 Rbe5 Nb5 Rd5 Nd6 Rdb5 Rh7 Bf1 Rc7 Bh7 Rd7 Rf6 Qf3 Bcg6 Qfh1 Bfd3 Ra7 Rff5 Qd1+
K1Rq2b1/1n1q1N2/R6B/3B3Q/1kn2PBq/1r1r3B/rNnpp1QQ/2b5 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 d5 Kd3 Kd7 c4 Kd6 f4 Kc5 g4 e5 g5 h5 g6 h3 b6 b3 g7 h2 f6 b2 f7 e4+ Kd2 e3+ Kd3 h4 b7 e2 Bh3 Ne7 g8B Ng6 Nf3 Na6 b8Q Be6 Na3 b1R Qe5 Kb4 c5 Ra7 Bg4 h3 c6 Bd6 Re1 h1Q f8Q h2 c7 Rh3 c8B Rg3 Nc4 Rb3+ Kd2 d3 Ke3 d4+ Ke4 d2 Qh5 d3 Bb2 Rh3 Bg7 Ne5 Nb2 Nc4 Bh6 Nc5+ Kd4 Qg2 Ra6 h1Q Ne5 Qc6 Nf7 Nb7 Qg7 Qcd7 Qb1 Re3 Rc1 d1N Rc3 d2 Qbh7 Qhh4 Bh3 Qb5 Qg2 Rd3+ Ke4 Nde3 Bd7 Ne5 Rc8 Nc2 Qh8 Bc4 Bdg4 Qbd7 Qh7 Ra3 Qh8 Ba2 Qh7 Nc4 Qh8 Rab3 Qh7 Rdc3 Kd5 Ra8 Qh8 Rd3+ Qd4 Rg3 Bh7 Na5 Qdg1 Ka3 Nd3 Rb7 Rac6 Ka4 Rb6 Ba3+ Nd6 Bc1 Q1h2 N4a3+ Kc5 Bb3 Be4 Bg8 Bd5 N3c4 Nf7 Ka3 Nb2 Rd3 Rf6 Kb3 Rd6 Kc3 Rdc6 Rb3 Rf6 Nd6 Rg6 Nac4 Re6 Ra2 Rg6 Qf5 Kc6 Kb4 Rf6 Nb5 Kb7 Qfd7+ Kb8 Nbd6 Rg6 Nb7 Ra6 Q8e7 Ka7 Qed8 Ka8
1k1BBb1Q/2r3B1/1R3N1q/2B1K1Nn/RnP2n2/bpQR1p2/q3b3/2q4r b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 c5 a3 cxd4 a4 b5 axb5 axb4 Kd2 g5 Kd3 d5 c4 Kd7 e4 Kc7 h4 f5 h6 g4 h7 f3 h5 g3 h6 g2 e5 b3 e6 f4 e7 f2 e8Q Nc6 b6+ Kb8 b7 Qd6 Qc2 Nge7 Qc3 Ra7 Rh3 Ng6 Qe7 Bg4 Be2 f1N Ra4 Ng3 Qe5 Nh5 Nf3 g1B Be3 Bf2 Ng5 Nb4+ Kd2 d3 Bc5 d4 Qg7 Rg8 h8B Bh4 Bd1 Be2 h7 Qe6 Re3 f3 Bc2 Bg3 Qf6 Be5 Bg7 Ngf4 h8B Bed6 Qe5 Qh3 Bf6 Qe6 Bd8 Qh6 Bg7 Rh8 Qe8 Bfe7 Qf8 Rh7 Qh8 Bf8 Qa1 Bde7 Nc3 Bd6 Nd5 Bde7 Ke1 d2+ Kf2 d1Q Qc3 d3 Nf6 d2 Rd3 Qa1 Ke3 d1Q Kd4 Qa2 Ke5 Qe1 Rd4 Qc1 Bg6 Ra6 Rd5 Rc6 Rd3 Rc7 Be8 Nbd5 Bf2 Ba3 Bc5 Nb4 Bg6 Ng3 Bb6 Qh4 Ba5 Ka7 b8R Qh2 Rb5 Rh5 Bb6+ Kb8 Be8 Rh6 Rbd5 Qh5 Rd7 Qg6 Re7 Rh1 Bc5 Ngh5 Re6 Qh6 Rb6+
Rrb2Rk1/1nr5/Nn2N1K1/Qq3NRp/1q3PQb/3q4/3pRB2/B2n3r b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 h4 gxh4 b4 a6 b6 Bg7 b7 Nh6 b5 Bf8 b6 Ng8 Bb5 axb5 Kd2 Kf7 Kd3 h5 Ke4 e5 f4 h3 c4 b4 g4 d6 g5 h2 f6 d3 c5 b3 c6 b2 g6+ Ke8 g7 Kf7 c7 d2 Qa4 d1N Na3 b1Q+ Nc2 Ra6 Qa5 Be7 Bb2 Nd7 Kf5 e4 b8B d5 b7 d4 Ne2 e3 Re1 h1R Ng3 d3 Nd4 e2 Ne6 Nc5 Ba7 Rc6 b8N Nb7 Bf2 d2+ Kg5 Qdd3 Na6 Qb5+ Nf5 Q1d3 Ra3 Bd8 Ra2 Ne7 g8R Nd5 Ba1 Nb6 Rg6 Rf8 Kh6 Be7 Rg4 Rc1 Kg5 Kg8 Kg6 Rd8 Rg5 Re8 Reg1 e1Q R1g2 Qee4 Ra4 Bd7 c8Q Rc7 Ra3 Qeb4 Ra4 Kh8 f7+ Bf6 R2g3 Rf8 Re3 Rd8 Re2 Re8 Qa8 Rb8 Ra3 Bc8 Ra2 Nd6 Qf3 Nb7 Qg4 Q5c4 Qa3 Rh4 Nac5 Bd4 Bg3 Rh1 Qa4 Qd5 Qb5 Qe5 Ra8 Bf2 Na6 Be1 Qa5 Bf2 Bh2 Be1 Bg1 Bh4 Nd4 Qd5 Bf2 Q5b5 Ne6+ Nc3 Kf6 Nd1 f8R+ Kh7 Rf7+ Kh8 Kg6+ Kg8 Rf8+
2K5/1R3qq1/r1R2qn1/Nbnb1pNQ/1r1R3P/2BB1p1N/Q5R1/r1nk4 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 h4 gxh4 g3 h3 Ra2 h2 Ra3 Qh4 Ra1 Qd8 Na3 h5 Qd3 h4 Nb1 h3 Qd2 Be7 Qd1 Bh4 gxh4 Qb6 Ra5 Qf6 Ra1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ d3 b4 d5+ Ke5 a5 b6 f5 b5 d4 b7 a4 b6 a3 Bb2 a2 Bc3 Bd7 Kd6 Ra6 e5 Ne7 e6 Ng6 Qe2 Qf6 Kc7 Bb5 e7 Nd7 b8N Nc5 Nc6 Rb8 b7 Qf7 Qh5 Qf6 e8Q f3 Bg2 d2 Bf1+ d3 Qe2 d1Q Qg2 Qe1 Qf2 Qe8 Nd2+ Kd5 Rb1 a1Q Ne4 d2 Na5 d1B Rb4 Bde2 Ra4 Bec4 Ng5 Ba2 Rd4+ Ke5 Bb2 Bd5 c4 Qef8 Bd3 Qa2 Ne4 Kf4 Bc3 Qh6 Qc2 Ke3 Ng5 Qb3 Qa2 Qhh8 Bb2 Kd2 Ba1+ Kd1 Bc3 Rf8 b8R Qhg7+ Nf7 Re8 Rb7 Re2 Kc8 Rb2 Qa3 Qa2 Ng5 Rb4 Qb2 Nb3 c5 Nc1 c6 Qc4 c7 Qb3 Be1 Qa2 Ne2 Qb3 Rf1 h1R Rg1 h2 Rg2 Rg1 Qa2 h1N Nf4 Nf2 Bc3 Ne4 Nfh3 Nc5 Qg4 Bdc6 Qh5 Qbf7 Kb8 Be4 c8R Bd5 Rc6 Ne2 Qh8 Kc1 Bb2+ Kd2 Qh6 Ra1 Kc8 Kd1 Bc3 Nc1 Qh5
6N1/1qb4b/R5nk/2pPQ2B/1q1r1prB/N5qQ/1NK5/B1nrBR1n b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 e4 c5 d4 h5 Kd2 f5 g4 Kf7 d6 Kg7 e5 b3 d7 b2 g5 h3 g6 h4 e6 h2 b6 f3 b7 h3 e7 f4 e8N+ Kh6 g7 f2 Nf6 Na6 b8B Ne7 g8Q Ng6 Nf3 Bd6 Be2 f1R Ne5 Nb4 Qe8 Rg8 Nc4 Bc7 Qb3 Nd3 Bh5 Ra4 Kc2 Rd1 Bd2 Nc1 Rf1 h1Q Qe5 h2 Nba3 Qb7 d5 h1N Qh3 Rb4 Be1 b1Q+ Kc3 Ra4 Nb2 Rad4 Ra2 Qe7 d8B Bf5 Ra1 Qe4 Ra2 Qg7 Ra1 R4d3+ Kc2 Qeb4 Ra2 Nh8 Ra1 Qg3 Be7 Rg4 Ng8+ Kh7 Bh4 Ng6 Nb5 Be4 Ra6 Bf5 Na3 Rd4+ Qe4 Bd8 Be5 Bc7 Nd3 Rc4+ B5c3 Rd4 Ba1 Kg7 Ne7 Kh6 Qe5 Be6 Nb2 Bg8 Rb6 Bh7 Rf6 Bd8 Ra6 Bc7 Ng8+
Knb2Bq1/2B1q2B/1rn5/1p6/BpN1bPq1/1k3b2/1n1RN1QR/3r2RQ b - - 0 1 illegal: No possible last move
4Q1b1/1P1bN1B1/1K3pR1/Q1n4b/1pQqr1nr/Rr2q1k1/N5Bn/1Q4N1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 exf4 Nc3 axb4 a5 b5 Nb1 Bd6 Bb2 Bc5 Bc1 Bb6 axb6 Ra4 Bb2 Ra3 Bc1 Ra8 Kf2 Kd7 g4 Kd6 d4 c5 e4 h5 g5 c4 g6 f3 Ke3 h3 b7 f6 g7 h4 Ra5 b3 Bg2 c3 Qf1 f2 Ne2 b2 Ng3 h2 Ra3 h3 Qc4 b4 Rg1 h1B Ne2 c2 Nbc3 b1R Na2 Nh6 g8N h2 Ne7 f1N+ Kd3 Ng4 Bh6 c1Q Bg7 Na6 e5+ Kd7 d6 Rb3+ Ke4 Rh4 d5 Nc5+ Kd4 Qh6 Be4 Bf3 e6+ Ke8 Rg2 h1B Ng1 Nfh2 Rg3 Qb6 d7+ Kd8 Rg2 Kc7 Rg3 Kd6 d8Q+ Bd7 Rg2 Qa6 Qa5 Re8 Rg3 Qb6 Rg2 Nf2 Rg6 Bg4 Bf3 Bh5+ Be4 Nfg4 Bg2 Rh8 Qc1 Qg5 Qb1 Re8 Kc4 Ke5 d6 Kf4 Kd4 Bc8 d7 Kg3 d8Q Bd7 Qc8 Qe3+ Kc4 Qd6 Qc6 Qdd4+ Kb5 Nf3 Kb6 Nh2 Bf1 Bd5 Bg2 Bc4 Qcb5 Bd5 Qc4 Qg5 Nc8 Qge3 e7 Bf7 Nf3 Bg8 Ng1 Rf8 e8Q Rf7 Qbc1 Re7 Qb1 Re4 Ne7
1BR1B3/pp1q3N/2RQ2b1/1Prb1r1q/1b3q2/B3Q1nN/Qr2B3/nk1K4 b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 g5 d4 gxh4 c4 c5 cxd5 cxd4 a4 Qa5+ Ke2 Qxa4 Ke1 Qa2 b4 Kd7 f4 Kd6 g4 e5 b5 Kc5 d6 Kb4 g5 h5 f6 h3 d7 h2 d8Q e4 f5 h4 g6 e3 f7 d3 g7 h3 f6 d2+ Ke2 Nh6 g8B Na6 Bb2 Qc4+ Qd3 Nc5 Ra2 Nf5 Be5 Nb3 Bg3 Na1 Bh4 Rh5 Bg3 Qf4 Q1c2 d1R Ra6 Rd2+ Ke1 e2 Qa2 Rb2 Nc3 Bd7 Re6 Rc8 Qe3 Be8 Ne4 Rc5 Rc6 Be7 f8Q Bg6 f7 Rg5 Bh4 Ng3 Nf6 Rgf5 Nh7 Bd6 Qd8 Be7 f8B Bd6 Qe4+ Kc3 Qe3+ Kc2 Bf7 Be7 Be8 Bd6 Qd5 Kb1 Bf6 Be7 Be5 Bd6 Qg2 Be7 Bb8 Bd6 Nf3 Be7 Rg1 h1B Nfg5 h2 Nh3 Bd6 Qgf2 Bd5 Rc8 Be7 Qd6 h1Q Qh2 Ne4 Rg4 Ng3 Rh4 Qhf3 Rh6 Qh5 Qd7 Bgf7 Rhc6 Bg6 Qd6 Rb4 Kd2 e1Q+ Kd3 Rb2 Be2 Qa5 Qg2 Qd8 Qgf2 Rb3+ Kd2 Qd7 Kd1 Rb2 Bg7 Rb3 Bb2 Rb4 Ba3 Rb2 Rd8 Bf6 Qh2 Bc3 Rdc8 Bb4 Qg2 Bg8 Qgd5 B8f7 Qdb3 Bd5 Qa2+
3Rk2n/rr1p1n1q/Nn4n1/1B3R2/1K4R1/1NN1b3/1PrQ1pQb/N1B3n1 b - - 0 1 illegal: No possible last move, all moves rejected
Q2RQ3/B4K1R/prRr1bR1/1nb1N3/4N2P/N3p1nr/2Bb3r/2n1q1k1 b - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 d4 cxd4 e5 d6 a5 Nc6 e6 fxe6 a6 e5 axb7 e4 bxc8Q a6 Be3 Na7 Bc1 Rb8 Qb7 Rc8 Qa8 Rc6 Ke2 Kd7 f4 Ke6 c4 Kf5 b4 e5 b5 g5 h3 g3 b6 e3 Kd3 g2 b7 g4 b8N d5 c5 e4+ Kc2 d3+ Kc3 g3 Kd4 e2 Qb7 e1B Qc2 d2 Qbb2 d1R+ Bd3 Qa5 Qb5 Be7 Na3 Bd2 Nf3 g1N Nd7 g2 Nfe5 Nh6 Nf6 Rb6 c6 Re1 c7 Re3 c8R Rf3 Nh5 Bf6 Rc6 Ne2+ Kc5 g1B+ Kd6 d4 Qd1 Rf1 Bc2 d3 Qe1 Bf2 Qd5 Bc5+ Kd7 Rh7+ Ke8 Rf3 Bb2 Re3 Bd4 Nc1 Rg1 Rf3 Rg6 Nb5 Qd8 Rf2 Qa8 Rh2 Ra2 Ng4 Rb2 Nf2 Qe2 Rh6 Kf7 Nh1 h4 e3 Rb3 Ke4 f5 Rh3 Ng3+ Kf4 Ne4 Ng3 Qh5 Qb4 Ng4 Kf3 Ne5+ Kg2 Rc3 Kg1 Rc7 Bd6 R3c6 Bc5 Rb7 Bc3 Rbc7 d2 Rd7 d1R Rd8 Bfe7 f6 Rd2 Rh8 Rdh2 Rh7 Bcd6 Bc5 Bd2 Bd4 Rb8 Ba7 Rb6 Kg8 Qc3 f7 Bc5 f8R Bf6 Rb8 Qd3 Rbc8 Qe2 Kf7 Qe1 Rd8 Bg5 Rgg7 Rd6 Rg6 Bf6 Qh6 Qd1 Qf8 Qe1 Qe8
n7/3B3N/R1n1q1Br/1bk2nR1/4brR1/1NK3p1/1nQpQPq1/1BnR4 b - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nh3 cxd4 Ng1 e5 h4 e4 Bd2 e3 Bh3 exd2+ Kf1 Nf6 Kg2 Nc6 Kh2 Ng8 Bf1 Nb8 Kg3 Qe7 Kg2 Qd8 Nh3 g5 Ra4 g3 Ng1 g4 Ra2 Bh6 Ra1 Bg5 hxg5 Ke7 Qe1 Kf7 Qd1 Ke8 c4 Ke7 b4 Kd6 e4 a5 b6 h5 b7 h4 g6 d3 g7 a4 b5 a3 e5+ Kc5 e6 d5 e7 d4 e8Q a2 b6 Ra4 Be2 h3+ Kf1 h2 Nf3 Nd7 b8R Qe7 b7 Rh6 Qc2 d1N Ke1 g2 Kd2 g1Q Ng5 g3 Bh5 Ne3 Bg6 Nb6 Nh7 Qg2 Rd1 h1B Ra8 Qee4 b8R Qe6 Ra6 Ne7 g8B Na8 Rb4 N3f5 B8f7 Bd7 Ra5+ Kd6 c5+ Kd5 Ra6 Bb5 c6 Kd6 c7+ Nc6 c8B Kd5 Kc1 d2+ Kb2 d3 Rg4 Rf4 Kc3 Kc5 Bd7 Qge4 Na3 Qg2 Rab1 a1N Nc4 Nb3 Na5 Nc1 Rb2 Qa2 Qe2 Qe6 Bg8 Qf1 Rb4 Be4 Rg5 Qg2 Ra4 Qe7 Ba2 Qd6 Bb1 Qe6 Re1 d1N+ Kd2+ Kd5 Nb3 Nb2 Kc3 d2 Rb4 Bc4 Rd1 Bcd3 Rb8 Bb5 Rg8 Kd6 Rg4 Kd5 Bge8 Kd6 R8g5 Kd5 Bg6 Kd6 Nd4 Kc5 Nb3+
q1k1K1Q1/3BRN2/n2q1rrN/n1N5/3Q2PR/1rp2R2/1prbb2N/3B2r1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 gxf4 Bb2 h6 Bf6 h5 g4 h4 Bd4 Ra4 Bf2 Ra8 Bg3 hxg3 Ke2 Kd7 Kf3 b5 Ke4 c5 Ke5 c4 d4 c3 a4 f3 h4 e6 d6 f2 a5 g2 f6 b3 d5 b2 f7 b4 h5 b3 a6 Qe8 a7 Rh7 h6 Kd8 d7 Na6 Qd4 Nc5 Bb5 f1R Rh4 Rg7 h7 Rf6 h8Q Rgg6 Nd2 b1R Ne4 Bh6 Kd6 Bd2 f8R Na6 Nf3 g1R Nh2 Ne7 Nc5 Nc6 Qg8 Na5 Ra3 Rb8 a8B b2 Ra1 Rbf1 Re1 R1f2 Bac6 Rb6 Be2 Rb3 Bd1 Bb7 Ba4 Bc6 Rf7 Bb5 Rf1 Rfg2 Rf3 Be2 Re7 Rf2 Ke5 Kc7 d8N+ Kc8 Kd6 Rfg2 Nf7 e5+ Re6 e4 Nh6 e3 Bb5 Kb8 Bd7 Qc8 Ke7 Kc7 Qf7 Qa8 d6+ Kb8 Ke8 Rf2 Bc6 Kc8 d7+ Kb8 d8N Rff1 Re5 Kc8 Re6 Bc4 Be2 Rc1 Qd5 Rc2 Bd1 e2 Re7 e1Q Qd4 Qe6 Qg8 Qd6 Ndf7 Be2 Bd7+
B1k1K1Qn/3Q4/1RNqpq2/1B1q2p1/4qr2/br4Q1/2PbnQ1B/3q1RN1 b - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 g4 hxg4 b3 a5 b6 a4 Ke2 a3 Ke1 Bb7 Qd2 Bc6 Qd1 Ba4 bxa4 Ra6 Bd3 Ra5 Bf1 Ra8 Kd2 d5 f4 Kd7 h4 g5 f5 d3 Kc3 e6 Kd4 d2 Ke5 e3 f6 d4 b7 g3 f7 d3 a5 a2 h5 e2 a6 e1Q+ Be2 g2 h6 Ne7 Kf6 Nbc6 b8Q Nd4 Qg3 Rb8 a7 Rb3 a8B Kc8 h7 Qd6 Nc3 Ng6 Rb1 a1Q Nb5 Be7+ Kg7 Rf8 h8Q Qc3 Qg8 Nh8 Bf1 Ne2+ Nd4 Qd5 Rb2 Ba3 Rb1 Qa1 Bb2 Qd6 Nc6 Qd5 Be5 Qc3 Qc1 d1Q Qd2 Qcd4 Kf6 Q4e4 Bd6 Qf2+ Ke7 Qfd4 Rb2 Qa1 Qd1 d2 Rb1 Nc3 Bb5 Ne2 Qf1 d1Q Qff2 Rd8 f8Q Q4c5 Qfg7 Rf8 Q8h7 Rf4 Ke8 Qf6 Qhg8 Qcd4 Nf3 Q4d2 Rf1 g1B Qga7 Bh2 Ng1 Qdb4 Bc7 Qbd6 Nh3 Rf5 Qgg1 Rbf3 Bd3 Bf4 Rb6 Q6c5 Bb5 Bd2 Bh2 Rb3 Qgg3 Qcd6 Ng1 Rf4 Qd7+
NQ1k1bQ1/B1q2p2/q2bB2Q/2RbP1N1/R1p2Qn1/4r1r1/K4b1n/5R1b b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 h4 g5 d4 c5 Kd2 b3 Kc3 g3 Kb2 c4 e4 g4 b6 f3 d6 g2 d7+ Ke7 e5 g3 d5 f2 h5 Nh6 b7 Rg8 Ra4 Qa5 d8R Qc7 Nh3 g1B Qf3 g2 Be3 Ng4 h6 Nh2 h7 Nd7 h8Q Nf6 b8Q Nfg4 Ng5 Be6 Na3 Rg7 Be2 f1Q Nb5 Bf2 Qh6 g1B Rc8 Rg8 Ka3 b2 Qf4 b1B Ba7 Be4 d6+ Kd7 Ka2 B6d5 Bd1 Bc5 Be2 Bgf2 Bd3 Qd1 Rf1 Bh1 Bg6 Qe1 Bd3 Qea5 Bf5+ Kc6 d7+ Bcd6 d8Q Qa6 Bc5 Ra7 Be6 Rb7 Ba7 Rg6 Na3 Rb3 Nb5 Rh3 Qdf6 Rd3 Qfh8 Re3 Qg8 Bde4 Bd5+ Kd7 Be6+ Ke7 Qb7 Bd5 Qb8 Qcb6 Rc5 Qc7 Qb6 Kd8 Qb7 Qcc6 Nc7 Rg7 Na8 Qc7 Qb2 Nf6 Ne4 Rgg3 Ng5 Nfg4 Qb8+
1K2B1Q1/1NnQ1pb1/1bPNQR1n/q7/3R1q1r/N2B1p1r/1r2r1k1/2Q4r b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Be3 g3 Kd2 Qb6 Bf2 gxf2 g4 Bb7 g5 Bf3 h3 Bg4 hxg4 Qd8 Kd3 Ke7 Ke4 Kd6 c4 h5 b4 a5 g6 d3 g7 f3 b6 a4 g5 d2 b5 h4 c5+ Ke6 g6 h3 b7 a3 b6 d6 c6 h2 Nh3 a2 Qc1 d1Q Na3 Ne7 g8Q Bg7 Qe8 Na6 b8N Nc7 b7 Qd2 Na6 Rb8 Nc5+ Kf6 e3 Ng8 Ng5 Nh6 Bd3 f1R Qd7 d5+ Kf4 Qa5 e4 d4 Rb1 a1B Rb4 Rf2 Rg1 Ra8 b8Q h1R Nb7 Rh3 Qbc8 Re2 Rh1 Rb8 Re1 Bf8 g7 Bc5 g8Q Bb6 Rd1 Qf8 Rb5 Qg7 Rf5+ Kg6 e5 Kh5 e6 Kh4 e7 Qf6 e8B Rh7 Bc2 d3 Ne4 d2 Ned6 Bb2 Bd3 B2d4 Rf1 d1R Qe6 Bb2 Qcd7 Rde1 Rf2 Reh1 Rf1 Bc3 Rd1 Qd4+ Be4 Qc4 Rd4 Rh8 Bd3 Ba1 Re4 Bg7 Rf6 Qca4 Qd5 Qc4 Ke5+ Kg3 Qe6 Kg2 Qd7 Nb5 Q5e6 Qcb4 Kd5 Qd2 Rd4 Qe3 Nf5 Nc7+ Kd6 Qf4+ Ke7 Ra8 Nfd6 Ra7 Kd8 Rh7 Nc5 Rb7 Kc8 Nf5 Qce3 Ba7 Bc2 Rb2 Ncb7 Bb6 Bd3 R7h4 Kb8 Nh6 Qc1
rr1r3B/3Rp1R1/q3bkn1/RQPB4/Rqr2Nn1/6N1/Q2r1pK1/2B3b1 b - - 0 1 legal: proof: e4 h5 a4 b5 axb5 h4 d4 c6 d5 cxd5 Kd2 dxe4 f3 exf3 g3 f2 gxh4 Qc7 h5 Qd8 Ke2 f5 Kf3 Kf7 c4 g5 h4 d5 b4 a5 h6 g4+ Kg2 f4 b6 f3+ Kh2 a4 b5 d4 h5 a3 c5 a2 h7 d3 h6 d2 b7 Bg7 b6 Nd7 b8R g3+ Kh3 g2 b7 Qb6 Qc2 d1R Ne2 g1R Nbc3 Rg2 Nd5 Ngf6 Ng3 Ng4 Rg1 Nde5 Nf4 Ng6 Bc4+ Kf6 Bd5 Be6 Rd8 f1R b8Q Qb4 Qb5 Rgd2 Rd7 Rhb8 h8B Rfe1 h7 Re4 Qb3 f2 Kg2 Rc4 Rb1 a1Q Qa2 Qd4 Ra1 Qd3 Rb1 Qda3 Rb3 Qa6 Ra3 Kf7 Ra4 Be5 Bf6 Bd6 h8R Bc7 Rg8 Bd6 Bh8 Be5 Rg7+ Kf6 Rh1 Bd6 Rh4 Bc7 Ra5 Be5 Nh1 Bc7 Nh3 Bh2 Ng3 Bg1 Bf3 Rd6 Nf4 R1d2 Bd5 Rc6 Rh5 Rcc8 Re5 Rd8 Re3 Bf5 Rea3 Be6 R3a4
Q2K1Q2/n1p1p3/4qn2/1N5P/1b1R1rqN/rB3B1Q/kbQ3r1/2r1NR1r b - - 0 1 legal: proof: f4 d5 e4 g5 exd5 b5 d4 h6 c4 bxc4 a4 Bb7 g4 Rh7 d6 Bc6 d5 Bb5 axb5 Rh8 Be3 Qd7 Bf2 Qc8 Bh4 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 Ke2 Kd7 Kf3 a5 Kg4 c3 Kf5 a4 b4 f6 h4 c2 b6 c1R b7 g4 b5 f3 b6 f2 g7 a3 h5 a2 Na3 g3 Nf3 g2 Rh4 g1B Bg2 f1Q Rd4 Ra6 Nc2 Nc6 b8Q Qc4 b7 Qc8 Nh4 Ra3 Qa8 Na7 b8Q Q8a6 Rb1 a1R Bf3 Qc8 Kg6 f5 Kf7 f4 Qb3 Nf6 g8B Bg7 Ne1 Bh2 Bh7 Rg8 Bc2 Bh8 Qc3 Rg2 Ba4+ Qc6 Qdc2 Bg1 Rd2 Bc5 Rd4 Bb4 Q3d3 Qa6 Qf1 Qe2 Qh1 Qe4 Qh3+ Qf5 Nd3 Rh1 Rf1 Qg4 Ne1 Rc1 Qf8 Ne8 Re4 Bb2 Rd4 Kc8 d7+ Kb7 d8N+ Kb6 d6 Ka5 d7 Nf6 Ne6 Qd6 Bd5 f3 d8Q f2 Bf3 Qe5 Qa8 Qef5 Rd8 Qe5 Nd4 Qee4 Rg1 f1R Nb5 Qe2 Rd4 Qc4+ Bd5 Rf4 Rf1 Qc6 Qh8 Qce6+ Kf8 Ng8+ Ke8 Nf6+ Kd8 B4c3 Rd2 Kb4 Bf3 Kc4 Qf8 Kb4 Qg6 Kc4 Rd1 Bb4 Rd4+ Kc5 Rd2 Kc4 Nd6+ Kc3 Rd4 Ba1 Qf5 Kb2 Nb5 Ka2 Qc2+ Bb2 Bb3+
3NN2n/qRQK1Q2/1Bn2R1b/N3q1Br/Pr6/6qp/1q2pb1k/Q3nN2 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 fxe4 f5 d5 cxd5 g6 g4 Nh6 f6 Ng8 Bh3 Bf5 g5 Bd7 Bf5 gxf5 h3 Bb5 Kf2 Be2 Ke1 Bg4 hxg4 Qd7 Kf2 Qc8 Ke1 Qd8 Ke2 Kf7 Ke3 Kg6 Kd4 e5+ Kc4 h5 Kb5 c5 a4 h4 d4 c4 d6 f4 d7 e3 f7 e2 d5 e1N d6 h3 Bd2 f3 Be3 c3 Qe2 e4 Bc1 b3 Qb2 e3 Bd2 f2 Bc1 f1Q+ Kc5 b5 Nd2 b4 Nc4 c2 Na5 e2 Nf3 Qf6 d8N Bh6 f8B Ne7 d7 Nbc6 Rb1 Qg2 Qa1 b2 Nd2 b3 Rf1 Qg3 Rf5 Rc8 Nf1 Rb8 Bf4 Qg7 Kd6 c1B Kc7 Rb4 Rf6+ Kh7 Kd6 Ng6 Ke6 Bd2 Bc5 Be3 Bb6 Bf2 Kd6 Qe7+ Kc7 Qe5+ Kc8 Nf8 g6+ Kg7 g5 Rh7 Rd1 b1Q Bfe3 Qa2 Rb1 b2 Bc1 Qf7 Bce3 Kg8 g7 Ng6 Bd2 Rh8 Bf4 Kh7 g8N Kg7 Bd2 Rh7 Bc1 Nh8 g6 Qfe7 Bg5 Q7c5 Nf7 Qce7 d8Q Qa7 Qd7 Qb3 Qc7 Qbg3 Rd1 b1Q Kd7 Qbb2 Rb1 Ne7 Nd8 Nc6 Bh4 Bc1 Bg5 Rh5 Nh6 Bd2 Nhf7 Bf4 Nd6 Bd2 Bh4 Kh6 Ne8 Bg5 Rf7 Bge3 g7 Kg6 Bf6 Kf5 g8Q Bh6 Bg5+ Kg4 Qg6 Qc5 Rf6 Qce5 Re6 Kf3 Qf7+ Kg2 Rf6 Kg1 Rd1 Kg2 Rd5 Kh1 Rb5 Kg2 Bbe3 Kg1 Rb7 Kh1 Bb6 Kg2 Nd2 Kh2 Nf1+
N3B3/qQrnn2R/2nK4/4P2q/1R3BQb/rN3pb1/2b1b2p/k3Q1QB b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g4 f5 g5 c5 g6 b3 d6 b2 d5 f3 d7 h3 g7 f4 d6 h4 b6 f2 b7 f3 Ke6 h2 Nh3 Ne7 g8B Qb6 Bd2 Qa7 Bf4 Nbc6 b8Q Ba6 d8Q Rh7 Ng1 h3 Bg2 f1N e4 Nd2 d7 Nb3 Na3+ Kc3 e5 b1B Qa5+ Kb2 d8Q c4 Qae1 c3 Nb5 c2 Ra4 c1B Rb4 Ka1 Qdc8 Nc5+ Kd6 Nd7 Qbb7 Bc2 Nc7 Be2 Bf7 Bh6 Qg8 Bg5 Be8 Bh4 Qgg3 Qa2 Qg4 Ra3 Na8 Bg3 Qd3 Rg7 Qe4 Qf7 Qf2 Bd2 Qee3 Be1 Qd2 Bh4 Qfe3 Beg3 Qe1+ Bed1 Ne2 Rh7 Rf1 h1Q Nc1 Be2 Qg1 Qh2 Bh1 Qh5 Bf7 Qf2 Be8 Qa7 Rf2 h2 Rg2 Bf2 Rg3 Rg7 Rh3 Bfg3 Bf7 Ng6 Rb5 Qh8 Rb2 Ndb8 Qgd7 Bd8 Rh5 Bdh4 Be8 Re7 Qh3 Rc7 Qg4 Nd7 Rb4 Nge7 Rh6 Qh7 Rh5 Qf7 Rh7 Qh5 Nb3+
r1N5/b1n2K2/1r2NBRQ/1P1q3r/k2R2qp/3N1Rn1/BN1pb2Q/5rb1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 h5 Kd3 d5 c4 Kd7 f4 e5 g4 h3 f6 b3 g5 h2 f5 b2 c5 Nh6 f7 Kc7 f6 Nf5 c6 Kb6 c7 Rh6 g6 Ng3 g7 Na6 g8R Bc5 f8N Bg4 Nd2 b1R f7 Qh4 Ba3 Ka5 c8N Nc7 Qe2 Rb6 Ne6 Ka4 f8Q Rd1 Bh3 Rf1 Rg6 Qg5 Qh6 e4+ Kc2 e3 Kd3 Bf3 Nc4 Qg4 Rd1 h4 Qf2 e2 Bb2 e1B Ne2 Beb4 Rg1 h1Q Nc1 Be1 Qg2 Bf2 Qh2 Be3 Rg2 Bg1 Rf2 Qg2 Rdd2 Bd1 Rf3 Be2+ Kc2 d3+ Kc3 Qh1 Rd1 d2 Nd3 Rb7 Bg2 Ba7 Ba1 Rb6 Bh3 Qf4 Bf5 Qg4 Be4 Rf2 Kd4 Rf1+ Ke5 d4 Kf6 Qg2 Kf7 Qh1 Rb1 d1R Bd5 Rd2 Rd1 Qg2 Nb4 d3 Bf6 Rc2 Na5 Rcc6 Ba2 Rc5 Nc4 Rd5 Rc1 d2 Nd3 Rh5 Re1 Bd1 Re4 Be2 Rd4 Qh1 Rff4 Qc6 Rf3 Qd5 Ncb2+
NR2k3/4rNb1/nqBR3r/Pb2rNQ1/6q1/1np2Q1n/2p1nB1N/B3K3 b - - 0 1 illegal: No possible last move
2qR3Q/1kQb1Q2/r2n1p2/1brP1B2/pnNrq3/4Q3/b1Br2RB/2N1K3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 h4 g5 Rh2 gxh4 Rh1 a5 b3 a4 b4 Bc5 Qb3 Bb6 Qd1 Ba5 bxa5 Kd7 Ra3 Ke7 Ra1 Ke8 d4 Kd7 g4 c5 e4 Kc7 b6+ Kb7 e5 h5 e6 f6 g5 c3 g6 f3 g7 c4 e7 f2+ Ke2 c2 e8Q h3 Qe6 c3 Qd3 h4 Nd2 h2 Qf7+ Ne7 g8B h3 Nc4 Ra6 Ra2 Bd7 Bh7 Qc8 Bf5 Rh4 Bf4 c1R Qe3 c2 d5 Nbc6 Bg2 Rd1 Bge4 c1R Bc2 f1B+ Kf2 Nb4 Ne2 Rd4 Be5 Rcd1 Nc1 R1d2+ Ke1 Be2 Rg1 h1B Rg8 h2 Rd8 Be4 Bc7 Bf1 Rb2 h1Q Bh2 Nec6 Ra2 Na7 Rb2 Nb5 Ra2 Ka8 b7+ Ka7 Rb2 Nd6 Ra2 Bed3 Rb2 Qe4 Ra2 Rc6 a6 Rh8 Rb2 Rc5 Ra2 Kb8 a7+ Kc7 a8Q Bfe2 Nb6 Bb5 Qa5 Bec4 Rb2 Ba2 Nc4+ Kb8 Bb3 R2d3 Rg2 Re8 Bc2 Re6 Qc7+ Ka7 b8Q+ Ka6 Qg8 Rd2 Qh8 Be8 Qf7 Bec6 Qbc7 Bd7 Qa5+ Kb7 Qg6 Nf7 Qgh7 Ra6 Q7g7 Nd6 Qe7 Rac6 Qf7 Ra6 Qc7+
1q5b/1qRQ1pBn/2p2B2/B1qQr3/bn4Pk/b1Q5/1rN3K1/1QNRq3 b - - 0 1 illegal: No possible last move, all moves rejected
1RQ5/nbB1P3/4n1K1/2r4N/1r1b4/1B1R1nQQ/1BqppbQq/N5kb b - - 0 1 illegal: No possible last move
r2R3r/1b1pBR2/2R2K2/4Q3/B1Nn4/2k2NP1/1RqNnb1p/1n1n1qqQ b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 Kf7 Kf3 Kf6 Ke4 h5 f4 e5 c4 d3 c5 b3 b6 b2 c6 h3 g3 h2 c7 h4 b7 h3 Nd2 b1N Ba3 Bh6 Ra2 Nc6 b8Q Nge7 Ngf3 Nd4 Rb2 Nec6 Bd6 Ba6 c8N Bb7 Nb6 Ne2 Nbc4 Qc8 Kd5 e4 Be7+ Kf7 f6 e3 f5 Ncd4+ Ke5 Bg7 Na3 Qc2 Nac4 Bh6 Rg1 h1Q Bg2 h2 Qc7 Kg8 f7+ Kg7 f8R Bg5 Re1 Qf1 f6+ Kg6 f7 Kg7 Ne4 d2 Rd8 Qg1 Qc1 d1N f8R Kg6 Rf7 Bf6+ Kd6 Kf5 Ned2 Qf1 Nfe5 Qg1 Bc6 Qf1 Ba4 Qg1 Nf1 Ke4 Nf3 Kd3 N1d2 Kc3 Rf1 Bg5 Ke5 Bf4+ Kf6 Bd6 Bb5 Bc5 Qe5 Nf2 Qg5 Ne6 Nb6 Qg2 Bd3 Ng1 Rff8 e2 Kf5 e1Q Rf7 Ne2 Qd1 Qb3 Bb5 Kb4 Ba4 Qh1 Ne5 Qg2 Rf6 Kc3 Nbc4 Be3 Kg6 N6d4 Rc6 Qc2+ Qf5 Nd3 Rf4 Nf2 Nef3 Qeh1 Qg1 Qf1 Kf7 Qhg2 Qe5 Nd1 Qh1 Qgg1 Kg7 Bf2 Rf7 Qb3 Kg6 Qc2+ Kf6
2n5/2P1r3/1qnnbk2/Q1bQ1pR1/2N2RN1/p1nB1BqR/1N6/3rbKN1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 axb5 e6 f5 h6 g4 f6 g5 exf5 gxf6 Bb4+ Bd2 Bf8 Bg5 hxg5 c4 Kf7 e4 d5 h4 a5 b4 a4 e5 g4 h5 g5 c5 a3 c6 g3 h6 g2 c7 d3 h7 g4 b6 d4 b7 g3 b5 Nh6 b6 Ng4 Rh5 Qd6 Nd2 Be6 Rg5 Nf2 Nc4 Ne4 Nb2 Nc6 b8N d2+ Ke2 Ra5 b7 Rd5 Nd7 Bg7 b8N Re8 h8Q Re7 Nb6 Qc5 Qe1 d1N Qh1 Ne3 N6c4 Nd6 Qa5 Qb6 Nd7 Nc8 Ke1 Bf8 Bd3 Bh6 Ke2 Bg7 Rf1 Bh8 Nh3 g1B Rf4 g2 Ke1 Bf2+ Ke2 g1Q Qg2 Rc5 Qd5 Qg3 Ng1 Rb5 Nf3 Be1 Ng1 Ng4 Kf1 Nh6 Nc5 Bg7 Ne4 Bf8 Nf2 Rb3 Ng4 Rc3 Rh5 Rc1 Rh3 Kg6 f7 Rd1 Be2 d3 Bf3 Bg7 f8R d2 Rg8 Nf7 Qac5 Nfd6 Qa5 Bd7 e6 Kg5 Rf8 Bd4 Re8 Bc5 Rg8+ Rg7 e7 Be6 Qa4 Kg6 Qa5 Kf7 e8B+ Ke7 Nge3 Kf6 Bd7 Re7 Rg5 Rb1 Be8 d1N Beh5 Rc1 Be4 Ra1 Bd3 Nc3 Bf3 Rd1 Ng4+
2qnnK2/1P1N4/1QQ1r3/BQ3b1q/1p1B1r2/1prR1RQb/2bk2Nb/1R6 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 a5 b4 axb4 h4 gxh4 Na3 d5 Rb1 b5 Be2 b3 Ra1 b4 Nb1 Qd7 Bd3 Qb5 cxb5 Kd7 Bf1 Ke8 Bc4 dxc4 Ke2 Kd7 Kf3 Kd6 Kf4 Kd5 Kg5 Ke4 g4 Kd3 f4 h5 Kg6 e5 Kf7 c5 a4 c3 a5 e4 b6 h3 g5 c2 a6 h4 g6 h2 a7 h3 f6 c4 f5 c3 g7 e3 Nf3 e2 Qf1 Rh5 Na3 Nd7 Ne5+ Ke4 d4 e1R d5 Rh7 d6 Ne7 Be3 c1Q Bd4 c2 Nac4 Rh4 g8Q Qg5 Rb1 c1Q Ne3 Rf4 Qb5 Nc6 Ng2 Nd8+ Ke8 Qc3 f7 Qh5 f6 Rb8 Rg1 h1B Qg3 h2 a8Q+ Rb7 Qa7 Rc7 b7 Qc2 Qab6 Rc3 Rf1 Bh6 Rf3 Bg7 Ne3 Bg2 Ke7 h1B f8Q Bh3 f7 Re2 Qe8 Nf6 f8R Bcf5 d7 Bh8 Qeg6 Ne8 Ng2 Ree3 Rf7 Bf6+ Kf8 Re1 Nc4 Be5 Re7 Ree3 Qh6 Kd3 Qhc6 Bc7 Ne5+ Kd2 Ng6 Re6 Ne5 Nf7 d8B Bd6 Bc7 Nd8 Nd7 Be5 Rf7 Qc1 Re3 Qc2 Ne1 Bhe4 Ng2 Qc1 Qa7 Bc2 Ba5 Qf1 Qab6 Qc4 Qcf3 Qc8 Qfc6 Rg4 Qh4 Bh2 Qg3 Bfe4 Rff1 Bf5 Rff3 Rf4 Rd3+
2K3n1/P4N2/2n3bN/3qp1pR/B1b3Bn/1B1QR1rB/r1Q3Q1/2b1qb1k b - - 0 1 legal: proof: e4 c5 f4 a5 b4 axb4 d4 f5 exf5 cxd4 f6 h6 g4 Ra3 g5 Rh7 f5 Rh8 fxg7 Ra7 g6 Ra8 Bg5 hxg5 Kf2 b5 Kf3 e5 Ke4 Ke7 Kd5 Kf6 a4 d6 c4 d3 h4 b3 c5 b4 c6 d2 h5 b2 c7 b3 h6 Ra7 a5 Qe7 h7 Ra6 Nf3 Nc6 Na3 b1B Nc4 b2 Nh2 Na7 Bh3 Bd3 Qc2 d1Q Ra3 b1B Bg4 Bd7 c8B Qe1 Bh3 Bf1 Re3 Qd8 Ng4+ Ke7 Qd3 Bb5 Nh6 Kf6 Bg4 Nc6 Rh5 Ra8 a6 Qd7 Na5 Qd8 Nb7 Qda5 Nd8 Bc4+ Ke4 Be7 Ndf7 d5+ Kf3 d4 Ke4 Rb8 a7 Rb2 Qc2 d3 Qg2 Bb5 Kd5 d2 Bh3 d1N Bd7 Bd8 Kd6 Bbc4 Bc8 Rb3 Kd7 Be7 Qc2 Ba3 Bg4 Nge7 g8B Bc1 g7 Qd5+ Kc7 Ra3 Kb7 Ra2 Be6 Ng6 Kc8 Nh4 Bh3 Nf2 Bd7 Nd8 Ba4 Ng4 Qd3 Nc6 Qc2 Ke7 f6+ Ke6 Nd8+ Kd6 f7 Kc5 f8Q+ Kd4 Qff2 Nf6 Bge6 Rf8 h8Q Ng8 Beg4 Rf3 Qg2 Rg3 Qcf2 Bg6 Ndf7 Nf6 Qd8 Ng8 Rf3+ Ke4 Qb2 Qda5 Re3+ Kf4 Qd3 Qd5 Qb7 Rf3 Qgb2 Kg3 Qbb1 Kh2 Qbc2+ Kh1 Qa8 Nf6 g8B Rg3 Qb8 Ba3 Qcb1 Qd6 Q8b2 Bb3 Nd8 Bd5 Qbe2 Bc1 Qbc2 Bb3 Bc4 Ng8 Ndf7 Qd4 Ba6 Bd5 Bc4 Qc5 Bcb3 Bc4 Qed2 Qd5 Qg2+
2nRRq2/p7/4B2q/1qbNnNk1/2QBB2B/4bQr1/1qp2P2/2r1rR1K b - - 0 1 illegal: No possible last move
N3R1qQ/RBB3rp/rrnB1r2/3rP3/2npR3/k6r/N4Q1b/4R1bK b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 c4 Ke7 b4 Kd6 e4 f5 g5 a5 b6 d3 g6 f4 b7 a4 c5+ Kc6 b5+ Kc7 e5 d5 g7 f3 b6+ Kc6 Qc2 Kb5 c6 Kb4 c7 a3 c8Q a2 Nc3 Bc5 Nge2 g1R Nb5 g2 Nec3 Nc6 b8B Ra6 b7 Nge7 g8R Nf5 Bc7 Ne3 Kf2 d2 b8R d1R Rg4+ Nc4+ Kg3 f2 Kh2 Rb6 Re4 Rd3 Qe2 Qg8 Ba3+ Kb3 Qd8 Be3 Bad6 d4 Nd5 Bh6 Re1 a1R Nb4 Raa6 Qf8 Rg3 Re8 Bf4 Qf3+ Ka4 Be2 f1R Qf2 Kb3 Bg4 Ka4 Bc8 Kb3 Bb7 Ka4 Nc3+ Ka3 Na4 Rg7+ Kh3 Bh2 Q8f6 Rb5 Nb6 Rd5 Na8 Rb6 Qd2 Rf4 Qf2 Rf1 Qd8 g1B Qb8 Rf6 Ra1+ Kb3 Ra7 Ra1 Qc8 Raa6 Qd8 Ka3 Qc8 Bg3 Kg2 Rh6 Qd8 Rh3 Qb8 Qe6 Qd8 Rf8 Qc8 Rf6 Qd8 B1h2 Rhe1 Bg1 Qc8 B3h2+ Kh1 Rff3 Qd8 Qg6 Qf6 Qg4 Qf8 Rf6 Qg8 Qe6 Qh8 Qg8 Na2+
b1B1n3/6rR/2Pbrk1b/qN2RbnN/5QpK/p7/1rBNN3/1Q1Q2r1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Qc1 d5 Kf2 e5 b4 Ke7 c4 a5 h4 d3 c5 a4 h5 d4 b6 a3 b7 f3 Kg3 e4 c6 f2 b5 e3 g7 e2 h6 e1B h7 d2 b6 d1R f6+ Kf7 Ba6 Nd7 b8Q d3 b7 Beb4 Qbf4 f1B b8Q Nh6 g8B+ Kg6 f7 d2 Rh5 g4 Re5 Qa5 Ra2 Bg2 Rb2 Bbe7 Rb7 Nf6 Rc7 Bf5 Qb3 Re8 Bc8 Bh3 Kh4 Bf1 Qa2 Ba6 Ne2 Bc5 Ng3 Rg1 Qa1 d1R Nd2 Rde1 Qc2 Rc1 Qd1 Rc2 Qab1 Rb2 Rd7 Bcd6 Ra7 Bfe7 f8N+ Kg7 Rd7 Bb7 Bb3 Ba8 Bc2 Nf7 Ne6+ Kg6 Rc7 Ng5 Nd4 Bf8 Nde2 Re6 Rf7 Ne8 Rd7 Rg8 h8N+ Kf6 Nf7 Bc7 Nd6 Bh6 Nb5 Bd6 Rh7 Rg7 Nh5+
nkNQQ3/2NK1QN1/P1p1n1R1/8/1b1nqpB1/4BN2/nRr3br/5r1r b - - 0 1 legal: proof: c4 a5 f4 f5 e4 g5 b4 axb4 h4 d5 cxd5 gxh4 exf5 e5 Bb2 exf4 Ba3 Bd6 Bc1 Bf8 Ke2 Kd7 Kd3 h5 Ke4 b5 Ke5 c6 g4 Kc7 d4 b3 a4 b2 g5 h3 d6+ Kb7 g6 h4 f6 b4 a5 h2 f7 h3 d7 b3 Ke6 Ne7 d5 Na6 d6 Nd5 g7 Nb6 g8N Kb8 Qe2 Qe8+ Ne7 Rh5 Na3 b1R Bg2 b2 Be3 Rf1 Nf3 b1N Rg1 h1R Ra2 h2 Rb2 Nc3 Bh3 Na2 Nb5 Rh4 Bg4 Nc5+ Ke5 Rh7 d8N Ne6 d7 Ba6 Nc8 Bb4 f8Q Qg6 Rg2 Qe4+ Kf6 Ra7 Nc7 Na8 Qe8 Bc4 Qe1 Bd5 Qf7 Rb7 a6 Rb5 Qb1 Rc5 Ke7 Rc2+ Ke8 Rh3 Qe1 Qf5 Bd2 Nf8 Nd4 Rhg1 N8e6 h1N d8Q Ng3 Bf3 Rgh1 Ng7 Ne2 Rg6 R3h2 Bg4 Bg2 Nf3 Nd4 Qe5 Qd3 Be3 Qe4 Qee7 Nfe6 Kd7 Rhg1 Qfe8 Rgh1 Q7f7
2B2rRn/2nr2N1/pk1B2p1/b7/1B3PK1/1RR1Q1bN/r1r2B1Q/1nn4q b - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 d4 cxd4 e5 d6 a5 Nc6 e6 fxe6 a6 e5 axb7 e4 bxc8Q a6 Be3 Na7 Bc1 Rb8 Qb7 Rc8 Qa8 Rc6 Ke2 Kd7 b4 Kc7 f4 e5 c4 e3 h4 g3 Kf3 d5 b5 g2 h5 d3 c5 e4+ Kg4 d2 h6 g6 h7 e2 Ra2 e1R Rc2 e3 Rh3 d4 Qe2 d1R Na3 d3 Nc4 d2 Ba3 Qd5 Nd6 Qe4 Qd3 e2 Nf5 Be7 Rc3 Bh4 Ng7 Bg3 Qe3 Ra1 Rb3 d1N Rh5 Ra2 Bb4 Nc3 Nh3 g1N Rd5 Rd6 c6 Rc1 Rc5 Kb6 c7 e1B c8R Qh1 Qg2 Rcc2 Qh2 Nb1 Bg2 Rd8 Bb7 Rd7 Re8 Ne2 Bc8 Nc1 Rd8 Ne7 Re8 Rf8 h8B Nac6 Rd8 Ka7 Re8 Nd8 b6+ Ka8 b7+ Ka7 b8B+ Kb6 Bd6 Nd5 Kg5 Nc7 Kg4 Rf5 Rg8 Rf8 Ne6 Bc3 Bd4 Nf7 Ng7 Bce1 Qe4 Bd2 Bf2 Nh8 Qe3 Nb5 Ba3 Ba5 Bb4 Nc7 Rcc3+
qBN2BrR/pb5P/2RR1r1p/3n3b/1Rb2nn1/1NnB4/2QQ1k2/K4b2 b - - 0 1 legal: proof: f4 c5 a4 b5 g4 bxa4 d4 cxd4 g5 e5 Kf2 exf4 Nc3 d3 Nb1 d2 Nh3 d6 Ng1 h6 Na3 Qc7 Nb1 Qa5 Nh3 Qf5 Ng1 Qh7 g6 Bd7 Kg2 Bh3+ Kf2 Bc8 gxh7 g5 h4 g4 Nc3 Be7 Nb1 Bg5 hxg5 Kf8 Nf3 Ke7 Ng1 Ke8 e4 Kd7 Ke2 Kc6 Kd3 Kc5 Kc3 f5 e5 g3 g6 g2 e6 a3 g7 a2 e7 f3 e8Q d5 Na3 f2 Qd8 f4 Nb5 f3 Rh4 Nf6 g8R Ng4 Ne2 g1N Ned4 Bb7 Nd6 Nd7 Nc8 Nh3 Be2 f1B b3 f2 Kb2 Ndf6 c4 Rb8 Qc2 d1B Rb1 Nf4 Ka1 Ra8 Rh3 Rb8 Rd3 Ra8 Rf8 Rg8 Rd2 Rg6 Rh8 Rg8 Nf5 d4 b4+ Kc6 b5+ Kc5 b6 d3 Bb2 N6d5 Nd4 Rg6 Bc1 Rf6 Rb4 Rb8 Ba3 Ra8 Nc6 Rb8 Na5 Kd4 c5+ Ke3 c6 Ra8 c7 Rb8 Kb2 a1Q+ Kb3 Qc3+ Ka2 Qc6 Nb3 Qe8 Ka1 Qe4 Bf3 Bfe2 Qd7 f1B Qd8 Kf2 Qd6 Ba6 b7 Ra8 b8B Bb7 Nb6 Qe8 c8R Qd8 Qd7 Qe8 Rc6 Qe4 Bd6 Rg8 Bf8 Qe8 Bb2 Qa8 Be5 Rg5 Bb8 Rg8 Nc1 Ng6 Nc8 Ngf4 Qc3 Bb3 Qc2 Bc4 Rd1 d2 Nb3 Bed3 Be2 Bg6 Rd6 Be8 Rc1 d1N Qd8 Bh5 Qa5 Bd3 Qaa2 Bda6 Qd2 Bb5 Rcc6 Bc4 Qac2 N1c3 Bd3+
b2K2BR/QbR1B1N1/1qq5/b3rr2/1r1B1b1p/1QbB1N2/4pPk1/n3Q3 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra2 fxe4 Ra4 Qb6 Ra1 Qd8 b4 g5 h4 gxh4 Ke2 a5 Ke1 a4 Rh3 Nc6 Rh1 Na5 bxa5 Bg7 Qd3 Bh6 Qd1 Bf8 Kd2 Kf7 c4 Kf6 g4 Ke5 c5 Kf4 b6 h5 b7 d5 b8B+ e5 c6 d3 Kc3+ e3 a6 h3 c7 a3 a7 h2 g5 d2 g6 a2 g7 h4 Bh3 d4+ Kc4 e2 Kb5 e1B Kc6 d3 Qh5 e4 Nc3 e3 Be6 d1R Bc4 d2 Nb1 e2 Qa5 Bd6 Bb2 Bb7+ Kb6 Rh5 Nh3+ Kf3 Nf4 Nh6 g8B Nf5 Bd4 Ne3 Bd3 Nc2 Ne6 Bf4 Ng7 Kg2 Qb5 Qc8 Qb3 Rf5 Rf1 Qd7 c8Q h1B Bd6 Rb8 a8Q Qe8 Kc7 Qc6+ Kd8 Rc1 Qaa3 d1Q Qa7 Ba5+ Bb6 Qd2 Be7 Qe3 Nd2 Rd1 Rc1 a1B Nf3 B1c3 Rb1 Rd2 Rfc1 Na1 Rc2 Ba8 Rbc1 Rb7 Qc7 Qee6 Bd4 Rb4 Qcb6 Qh6 Ra2 Qhg6 Qd1 Rdb2 Qe1 Rbb5 Ra4 Rbe5 Rc4 Rb4 Rd1 Qb5 Rc7 Qbc6 Qb5 Bb7 Qc4 Qb6 Qb3 Qgc6 Rc1 Bb2 Rc5 Bc3 Rd5 Ba8 Rd6 Bb7 Rh6 Ba8 Rh7 Qf6 Qa2 Kh3 Nh2 Bhb7 Rh8 Kg2 Qb3 Qfc6 Nf3
1bR2q2/3RRqR1/kNnb1r2/n4nnn/3pB3/3b2pN/1B3PQN/2K1Q3 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 b4 fxe4 g4 h5 Ke2 hxg4 Ke1 a5 Ba3 a4 Bc1 Ra5 bxa5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 g5 c4 e5 h4 d5 b6 Kd7 h5 Kc6 c5 Kb7 h6 a3 h7 d3 c6+ Ka6 c7 e3+ Kc3 g3 b7 e2 Kd2 e1N Rh3 d4 Qc2 g4 Bb2 a2 Qc1 e4 Rh6+ Nf6 Rg6 g2 Ba3 e3+ Kd1 e2+ Kd2 Bf5 c8Q Nc6 Nh3 g1B Rg7 Nh5 Bb2 Bh2 Bg2 Bb8 Be4 g3 Rd7 Nc2 Qe1 Ne3 Kc1 Bfd6 Nd2 Rf8 h8R Rf6 Nf3 Qf8 Nh2 Nc4 Rb1 a1Q Rg8 Qa2 Rgg7 Bg6 Qe8 Bh7 Qf1 e1N Qg2 Nf3 Qe5 Ng5 Rde7 Ka7 a6 N4a5 Qe6 Kb6 a7 Ka6 a8N Qb3 Qe5 Qbf7 Nb6 d2+ Kd1 Ba7 b8R Bf5 Kc2 d1N Kc1 Ne3 Rc8 Bab8 Ra1 Bg6 Ra4 Nf5 Rc4 Nb4 R4c7 Nbc6 Rcd7 Nh4 Bd5 Bd3 Qe1 Nf5 Be4
R2n1Q1N/2bB4/7Q/4Nrbr/Q1Pq3b/pKNb4/1B1p1b2/k1q1qR1Q b - - 0 1 illegal: No possible last move
q1R2nnR/n1b1B3/1nb2b2/B4pR1/5nQ1/1qBPKp1N/1Rk5/1rN1Q3 b - - 0 1 illegal: No possible last move, all moves rejected
2N2K1R/2B1Bn1R/1b1n1N2/3ppNq1/1N5P/1r3q2/Q1B1nqqr/2k2qQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Be2 gxh4 Nb1 h3 Qd2 h2 Qd3 Nh6 Qd1 Ng8 f4 h5 Qd2 h4 Bg4 h3 Be2 Bb7 Qd1 Bd5 Nf3 Be6 Rf1 h1N Ng1 h2 Rf3 Bh3 gxh3 Rh7 h4 Rh8 Kd2 Kf7 c4 Kf6 b4 Kf5 b6 a5 b7 d5 b5 e5 c5 d3 Kc3 e3 b6 Ke4 f5 a4 Kb4 a3 f6 a2 f7 d2 Bd3+ Kd4 Bc2 e2 Ba3 e1Q Nc3 Nd7 b8Q Qf1 b7 Qe1 Qa7 Qf2 b8B Ng3 Bc7 h1Q Qb1 Bd6 f8N d1Q Nh7 Nb6 Rf8 Ke3 Nf6 Kd2 Nge2 Nc8 Nd4 Qhg2 Nf5 Qdf3 Qg1 Nh6 Kb5 Nf7 Kc6 Rh6 Rh8 Ne2 Rb1 a1Q Na2 Qdg8 Kd7 Q8g5 c6 Bc5 Ke8 Bb6 Nb4 Ncd6+ Ke7 Rb8 Qa8 Rb7 Kf8 Rg6 Rb2 Qaf1 Qa6 Qff4 Qc4 Q4f3 Qa2 Qge3 Rb3 Rg3 Rc3 Rh3 Rc4 Qeg5 Rg4 Qgf4 Rg7 Rh2 Rgh7 Qfg5 Nd3 Ne8 Be7 Ned6 Nb4 Kc1 Bb8 Ra7 c7 Ra3 c8N Rb3 Bc7
1qqb4/Q2BRB2/1Q1qnr2/NpBRR3/1K4Nk/np6/q2rP2r/2q4R b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 a4 Ke7 d4 Kf6 Kd2 Kg5 a5 c5 a6 h5 a7 b5 d6 f5 d5 c4 d7 h4 d6 h3 Nc3 f4 Rb1 f3 Bb2 f2 Bc1 h2 Ba3 b3 Na2 c3+ Kd3 c2 Kc3 c1Q+ Kb4 Qcc8 Nh3+ Kh4 g5 g1Q g6 Be7 g7 Nf6 g8B Ng4 Ra1 Ne3 Bf7 Nc4 Qd5 Rh6 Qc6 Rf6 Qb6 Qdc7 d8R Nd7 Bg2 f1Q Bc6 g2 Nf2 Qb1 Ng4 Qgd1 Re8 Nc5 d7 g1Q d8R Q7b8 Rd5 Bd8 Ree5 Ne6 Bd7 Qb2 Rc1 Qdd4 Rc3 Qgc1 Rce3 Qbc2 Nc3 Q2b2 Na4 Qa2 Nc5 Qf4 Nb7 Qh6 Rf1 h1R Na5 Rh2 Rh1 Qg6 Bb2 Qh6 Bd4 Na3 Bc5 Qf8 R3e4 Qbd6 Re3 Rb8 a8Q Rb7 Bde8 Rd7 Qaa7 Qdb8 R3e4 Rd6 Bd7 Qe7 Rdd1 Rd2 Re3 Qed6 R3e4 Rb2 Rdd5 Rd2 Re3 Nd4 Re7 Ne6 Ree5
1bQ1R1bk/5qR1/N1Qb1Qp1/2nP2N1/b1BKn1bB/q7/5Np1/n2Q1r2 b - - 0 1 legal: proof: c4 e5 f4 exf4 a4 d5 h4 dxc4 g3 b5 axb5 fxg3 h5 a5 h6 f6 Ra4 g6 Ra2 Ra6 Ra1 Re6 Rh2 Re7 Rh1 Rg7 hxg7 Bb7 Qa4 Ba6 Qd1 Bc8 e4 Kf7 Ke2 h5 Ke3 c5 b4 h4 d4 h3 b6 f5 b5 a4 e5 c3 b7 a3 b6 a2 Bb5 c4 Qc2 f4+ Ke4 f3 Nd2 h2 Ba4 f2 Nb3 f1B Nc5 Qe7 Nh3 Bg4 Bb3 Na6 Qd1 c2 Ne6 c3 b8Q Bc4 Bg5 c1Q b7 c2 Qd6 Qa3 b8N c1B Nf2 Bf4 Re1 Bd5+ Kd3 h1B Bh4 Nf6 Ng5+ Kg8 e6 Qf7 e7 Ne4 e8Q Rh6 Rb1 a1N Qf6 Bc7 Ke3 Nac5 Qec6 Bfd6 Na6 Bb8 Rc1 Bde6 d5 Bhf3 Re2 g2 Kd4 Rh7 Re1 Be2 Rc2 Bb5 Bc4 Ba4 Rb2 Rh6 Rb7 Rh5 Ngh3 Rf5 Re2 Kh7 g8Q+ Kh6 Qgc8 Kh7 Nd3 Rf1 Ndf2 Qe7 Re3 Bg8 Ra7 Qg7 Ng5+ Kh8 Re2 Nc3 Re8 N3e4 Qe5 Qf6 Rg7 Qf7 Qf6
4k1rb/1nR1Qn1B/Nq1qN1pq/pP3Nr1/3qB2N/2B4n/4q3/2KQ2R1 b - - 0 1 legal: proof: g4 e5 a4 a5 f4 exf4 d4 c5 g5 cxd4 g6 b5 axb5 Ba6 bxa6 hxg6 Ra3 g5 Ra1 g4 Kd2 d5 h4 f5 c4 g3 e4 g2 b4 d3 e5 d4 b5 f3 e6 f4 h5 f2 e7 f3 c5 Nc6 a7 Nb8 h6 Qd6 c6 Na6 h7 Nh6 c7 Nf7 c8N Nc5 Bb2 Qb6 Nc3 Rg8 h8Q Nb7 Kc1 g6 Ne4 Bg7 Nc5 Bf6 Qh4 Bh8 Bc3 Rf8 Be2 f1Q Na6 f2 Nf3 g1N Qf6 Qh3 Nh4 f1Q Bg4 Qff3 Be6 Qe2 Bd5 Rb8 a8B Qhh2 Ra4 Nh3 Rg1 Qh1 Rc4 d2+ Kb1 d3 Rc7 Qhh2 Kb2 Qf4 Bc4 Qh6 Kb1 Ne5 Bg8 Nf7 Bh7 Rg8 Na7 Rc8 Nc6 Rd8 Nd4 Rd5 Ne6 Rg5 Kb2 Nbd6 Be4 Nb7 Qc1 d1Q+ Kb1 Qa4 Qd1 Qad4 Kc1 Qdd6 Rc6 Kd7 e8N Qdd4 N8g7 d2+ Kc2 Qd6 Ngf5 Ke8 Rc7 Qdd4 Qc1 d1Q+ Kb1 Q1d2 Qd1 Qd2d3+ Kc1 Qdd6 Nec5 Q3d5 Ne6 Qdd4 Qe7+
rk3B1R/2r2BB1/1P2r1r1/b4q1R/1Q1p1Nqr/Q1BNq3/3p1b2/K1Q1n3 b - - 0 1 legal: proof: d4 f5 a4 b5 f4 bxa4 g4 c5 e4 fxe4 f5 cxd4 f6 Ba6 Nc3 Bb7 Nb1 Bc8 h3 g5 Qe2 Bb7 Qd1 Bd5 Be2 Be6 Bf1 Bf5 gxf5 Nc6 h4 g4 Bd2 Ne5 Bf4 Nf7 Bc1 Ng5 hxg5 Qb6 Ne2 Qc7 Ng1 Qd8 Kd2 e5 b4 d5 c4 Kd7 Kc2 Kc7 Kb2 a5 c5 h5 b5 a3+ Ka2 g3 g6 e3 g7 e2 b6+ Kb8 f7 e1R c6 a4 f6 d3 Nd2 g2 Ne4 h4 Bf4 d4 Bc1 d2 Ba6 h3 Bb5 h2 Nd6 e4 Nb7 e3 Qb3 e2 Qb1 Nh6 g8Q Qd7 Qbg6 Qf5 Qg5 Ng4 Q8g7 Nf2 Bc4 Rh4 Nc5 Nd3 Nh3 g1B Nf4 Bf2 Qg3 Rg4 Qf3 Rg6 Bb2 Rc1 Qg3 e1Q Bc3 Qe3 Qh3 Ne1 Ncd3 Be7 f8B Bb4 Qe7 Ba5 f7 Re6 Rb1 Rc2+ Ka1 a2 Qb4 Rc1 Kb2 a1R Bg7 Rg6 f8B a3+ Kb3 a2 Kb2 Qg4 Bf7 Qf5 Rg1 h1R Rg5 Qg4 Qf3 Rh4 Rh5 Nc2 Qh3 Re1 Rd1 Rc1 Rh8 Re2 Rh1 Ne1 c7+ Kc8 Qg3 a1Q+ Kb3 Qa4+ Kb2 Qad7 Qf3 Rc2+ Ka1 Qdf5 Qg3 Qef3 Rh2 Ree6 Rh3 Qe3 Rh1 Kb7 Qh3 Rb8 c8Q+ Ka8 Qcc5 Kb7 Qf1 Ra8 Qa3 Kb8 Qcb4 Ng2 Qfc1 Ne1 Bb2 Rc7 Bc3 Rh7 Rh5 Rhh6 Rg5 Rh4 Rgh5
3B1QK1/1rq1Q1N1/1pPpR2Q/1RnbR3/3N2b1/1q3q2/q3r2Q/2k1qr1B b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Na3 f2+ Kd2 axb6 Nb1 b5 Bh3 b4 Bg2 Nf6 Bf1 Ng8 Ba3 g5 Bb2 f4 Bc1 f3 Qe1 Nc6 Qd1 Bd6 h3 Bf4+ gxf4 Ne5 h4 g4 Nh3 Nf7 Ng1 Ng5 hxg5 Qb6 Rh6 Qc7 Rh1 Qd8 Kd3 Ke7 Kc4 Ke6 e4 h5 a4 h4 a5 b3 f5+ Ke5 g6 b2 a6 g3 g7 g2 f6 h3 a7 d6 f7 b6 f8Q h2 Nh3 g1Q Ra5+ Ke6 e5 d3 Qd2 Qdg5 Na3 b1Q Qe7+ Kf5 Kd5 Rh6 c4 Qg6 c5 Rh7 e6 Qf7 c6 Qc2 Qh6 d2 Ng5 Kf4 Nb5 Ke3 Bg2 f1R Nd4 f2 Rb5 Qb1 Bb2 d1Q Ba1 Rb8 a8Q Kd2 Qa2+ Kc1 Bf3 Qg3 Rg1 Rb7 Bh1 Qe3 Rg3 Qed2 Re3 Q2e1 Re5 Qb2 Qef6 Qd7 e7 Qc7 e8R Bg4 R8e6 Qdd2 Qe7 Nf6+ Kc4 Nd7 Kd5 Qa5 g8Q Nc5 Qgf8 Qb1 Qe2 Qaa2+ Rb3 Rg7 Rg6 Ne4 Nc2 Qd8 Qef7 Qb8 Rf5 Bf3 Ke6 Qc7 Bf6 Rg1 Nd4 f1Q Bd8 Nc5+ Kf6 Qd3 Rb5 Qdb3 Q7e7 Qg2 Rd5 Rf1 Re5 Qgf2 Nge6+ Qfe3 Rg1 Rg2 Kf7 Rgf2 Rg6 Bg4+ Kg8 Rg2 Qef3 Re2 Q3f7 Qf4 Ng7 Qfe3 Rge6 Qf4 Be4 h1B Qfh5 Bhf3 Qh2 Bg2 Bc2 Bd5 Be4 Qfe3 Bh1 Qf4 Qh7 Qff3 Q7h6+
NbBr1R2/b4Q1p/pr1PK2B/1r1Q3N/1bR5/4bq1B/2k2N1N/2n3bq b - - 0 1 legal: proof: f4 d5 a4 b5 g4 bxa4 c4 dxc4 Kf2 e5 Ke1 exf4 Ra3 f3 Ra2 g5 Ra3 f5 Ra1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Rh3 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Kd7 Kf2 Ke7 Ke1 Ke8 Kf2 Kf7 e4 c5 b4 c3 d4 a3 g6+ Kf6 g7 c4 b5 a6 d5 Ke5 b6 a2 f6 c2 f7 c3 b7 g3+ Ke1 f2+ Ke2 g2 Kd3 f3 Kc4 Nh6 g8N Rb8 Nf6 Bb4 f8Q Nf7 Bh6 c1B Nd2 c2 Nh3 g1B Nh5 Qh4 Rb1 a1B d6 Bd4 Rb3 Bdc5 Rc3 Ba7 Qg8 Rd8 b8N Qf4 Bg2 f1R Nf2 Bb2 Bh3 c1B Rc2 Bbd4 Bc8 Re1 Nf1 Bce3 Nh2 Rf1 Qd2 Rb1 Qf8 Rg8 Rc1 Rg5 Nd7+ Ke6 e5 Kf5 Kd5 Bb8 e6 Bda7 Qg8 Ne5 e7 Nd3 Rc4 Nc1 e8B Qh4 Nfg4 f2 Nb6+ Rd7 Bf7 f1Q Na8 Rb3 Nf2 Qd1 Kc6 Qf3+ Bd5 Ke5 Qf7 Rd8 Be4 Rdg8 Kd7 Rd8+ Ke7 Rb1 Bef5 Qhe4 Rc7 Qc6 Qda2 Kd4 Bh3 Kc3 Ke6 Rb5 Qd5 Kc2 Re7 Qc4 Re8 Qf1 Rf8 Rb6 Nhg4 Rb3 Rh2 Qh1 Rg2 Qd1 Nh2 Qf3 Rg4 Ra3 Rfg8 Ra5 Rf8 Rab5 Rc4+
2n1Bk2/Brq3p1/N1QP3q/Rb1N2N1/2qR1K2/5QN1/2b3pq/Rr1q1r2 b - - 0 1 legal: proof: f4 d5 e4 h5 g4 hxg4 d4 a5 b3 e5 b4 axb4 c3 Nd7 c4 Nb6 Bd2 Bd6 Be3 dxc4 Bc1 Nd5 exd5 e4 Ba3 Ra5 Bc1 Be5 fxe5 Ra8 Kd2 b5 Ke3 c5 h4 f5 a4 c3 e6 f4+ Ke2 b3 e7 b4 d6 g3 a5 b2 d5 b3 a6 f3+ Ke3 c2 h5 c4 h6 c3 a7 g2 h7 f2 Qe1 Bd7 Ra2 Qc7 Qd1 Rb8 a8Q Bb5 Kf4 e3 Qf3 e2 Ra5 e1Q Be3 c1Q Ne2 c2 Nbc3 b1Q Ng3 b2 Qc6+ Kf7 e8N Rb7 Bd3 f1R Bg6+ Kf8 Rg1 Qcd1 Ba7 Ne7 Bf7 Rg8 h8N Qe6 Bg6 Qa1 Nf7 b1B Ng5 Nc8 Bh5 Qa2 Bf7 Qb8 Nc7 Qh6 d7 Rh8 Be8 c1Q+ Ke5+ Bf5 d8R Qc4 Rd6 Qcc2 Na6 Qc7 Rh1 Qch4 Rg1 Qh2 Kf4 Qa2 Rh1 Bc2 Rg1 Qe2 Rh1 Rb1 Rd1 Qac4+ Rd4 Qd1 Ra1 Qe7 Rd8 Qc7+ d6 Qhe6 Rd7 Rh3 Re7 Qh6 Nd5 Rh5 Re3 Rh3 Rea3 Rh4+ Ke5+ Rf4 Ra5 Rf7 Qe2 Rf1 Qf3+ Bf5 Kf4 Bh7 R5a2 Bc2 Ra5
QN6/1PnK1R1n/8/4br2/QBBnRBQ1/1p3pq1/2k2r1n/1nN1r1Qq b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 a4 b5 b4 a5 Qc2 Ba6 Qb3 axb4 Qd1 b3 Nf3 b4 Ng1 Bb5 axb5 Qd6 Qc2 Qd7 Qd1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 g4 f5 Ke6 h5 d6 h3 d7 h2 g5 b2 d5 h4 g6 f3 g7 h3 b6 f4 d6 f2 b7 f3 Nc3 b1N Nd5 b3 Nb4 Kc3 e4 c4 e5 Qc7 d8Q Ra5 d7 Nf6 g8Q Bd6 Qg4 Na6 Bf4 Nh7 Nc6 Rg8 Bd3 f1N Nb8 Ra2 Qe8 Rg5 d8B Rf5 Qa4 Rf2 Be7 Kb2 Qe1 c3 Bc4 c2 Ne2 c1N Rg1 h1Q Rg2 Ne3 Qg1 h2 Bf8 Qg7 Rg3 Bc7 Bb4 Nf1 Rh3 Qg8+ Kd7 Kc2 e6 Be5 e7 Nc7 e8Q Qg5 Rh6 Qh4 Rf6 Qg3 Nc3 Ne2 Rf7 Nd4 Ne2 Qhg2 Qf8 h1R Nc1 Nh2 Qd8 Na8 Qda5 Nc7 Qa8 Q2h3 Qg2 Re1 Qg1 Qhg2 Ra2+ Kd1 Re2 Qh1 Re3 Kc2 Re4
B5qN/1b1B2kb/1rnqq1QN/3r4/Q2Br2p/BR6/RPr4p/1R1b1K2 b - - 0 1 illegal: No possible last move
1Q1R3b/5b1b/K1k4n/2Nrb1p1/2BQqpR1/2r2R1r/2q1P1BQ/1Q2q2N b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Nc6 Ke1 Nce7 Bg5 f4 Ra1 Nf5 gxf5 hxg5 Kd2 a5 Kd3 d5 b4 Kd7 h4 g6 c4 a4 c5 a3 b6 g4 c6+ Kd6 b5 f2 h5 g3 f6 g2 c7 a2 h6 g5 b7 Ra7 b8Q Ra5 b6 Be6 c8B+ Kc6 h7 Bf7 b7 Qe8 Nh3 g1R Bg2 f1Q Be6 Qe1 Nd2 Bg7 Nb3 Nh6 Nc5 Rb5 Rb1 a1B Rb3 Rf1 Qe5 Rf3+ Qe3 Qe7 b8Q Rc8 Rh2 Bh8 Nf2 Rh3 Qb1 Qe8 Ra3 Ra5 Nh1 Qe7 Kc2 d3+ Kb3 d2 Kb4 Be5 Qd4 Qe8 Rf3 d1Q+ Qd2 d4 Bc4 d3 Qc3 d2 Qd4 Rg3 Rh4 Qc2 Rg4 d1B+ Rc3+ Bd5 f7 Rh3 f8R Qeg6 Rd8 Qge4 Ba6 Bf7 Bc4 Bhf6 h8Q Bg7 Nb3 Rd5 Nc5 Rc7 Qh7 Bh8 Ka5 Qb3 Bd3 Bc2 Bc4 Bd3 Ka6 Qc2 Ra3 Qe3 Qg6+ Bhf6 Qc8 Rg3 Qcb8 Rb7 Rd7 Rb3 Qh5 Bh8 Qh3 Bh7 Qh4 Qee4 Qh2 Rh3 Rd8 Rbf3 Rd3 Re3 Rd2 Rb3 Rd3 Rc3 Rf3
RRb1Q1r1/q3rq1r/rn1R2nB/1K1P3k/2n5/6B1/3p1R1p/N3QqNQ b - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 d4 gxh4 e3 cxd4 Ra6 d3 Ra3 Nf6 Ra1 Ng8 Ne2 d5 Ra6 f5 Ng1 d4 Ra1 Bg7 Be2 d2+ Kf1 d3 Bf3 Bc3 Be4 Bd4 exd4 fxe4 c4 Kf7 b4 Kg6 f4 h5 g4 a5 g5 e5 c5 e3 d5 a4 b6 h3 c6 e4 b7 h2 b5 h4 c7 h3 b6 a3 Qe1 d1Q f5+ Kh5 g6 a2 g7 Qe8 f6 Qf7 Na3 Nd7 b8R Ne7 g8Q Ng6 b7 Nb6 Qe8 Rg8 Nc2 e2+ Kf2 Ra5 Ke3 Ra6 Kd4 e3 Bd2 Qb1 Kc5 Qc1 Kb5 Qa3 Rb1 a1N Ra8 Nb3 b8B Na5 Na1 Nac4 Rb4 Nce5 Rf4 Nec4 Rf2 Qa2 Bb4 d2 Bf8 Qa3 Bh6 Qae7 Qf1 e1Q Qg2 Bb7 c8R e2 Bg3 Qf1 Rcb8 e1R Qe4 Qc7 Qb1 Re2 Qe1 Bc8 Qe4 Qa7 Q4b1 Qg7 f7 Re7 f8Q Qf7 Qe8 Qe2 Nf3 Qf1 Rg1 h1R Rgg2 Rf8 Ng1 Rh8 Rf6 h2 Rgf2 Rh7 Ne2 Rg1 Rd6 Rg2 Ng1 Nh4 Be5 Rg8 Bg3 Ng6 Qbe4 Nh8 Qg2 Ng6 Qh1
n1Qrn2R/4r1QK/R1n2BR1/R2pq2B/kb4n1/q2r4/1pP1N3/BN4q1 b - - 0 1 illegal: No possible last move, all moves rejected
1KNBN2q/2N2rpQ/B1q2PRr/1n1p1n2/1n5q/1BR2b2/6kB/Q2r1r2 b - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 g4 hxg4 Bf4 a5 Bc1 e6 b3 a4 b4 Bd6 Ra3 Bc7 Ra1 Ba5 bxa5 Rh3 Bg2 Rh7 Bf1 Rh8 Kd2 Ke7 c4 Kd6 f4 g3 h4 a3 a6 e3+ Kd3 g2 Ke4 e2 c5+ Kc7 Ke5 e1R+ Ne2 g1R a7 d3 c6 d2 f5 a2 h5 Qg5 h6 Qg6 h7 Kb6 Kd6 Na6 c7 Bb7 Na3 Nh6 Nd4 e5+ Ne6 e4 Rh3 Nb4 Rc3 Raf8 a8B e3 f6 Bf3 Bd5 e2 Bb3 Qc2 c8N+ Kb7 b6 Rf7 Rb1 a1Q Nb5 Qa8 Nbc7 Qe4 Ne8 Nf5+ Kc5 Qh4 Ba3 d5 Qc1 Rd1 N6c7 e1Q Ba6+ Kb8 b7 Qe6 Rb2 Rgf1 Qa1 Qd7 Kb6 Qc6+ Ka5 Rb1 Rbc2 d1N Rg2 Rc1 Rg6 Rb1 Rc1 Nc3 Rc2 Nb5 Rc3 Na2 Be7 Rbd1 Bd8 Nb4 Bc2 Rhf8 h8Q Rg8 Qh7 Rh8 Qg8 Rh6 Bb3 Ng3 Qh7 Nf5 Ne7 Ka7 Ka4 Kb6 b8B Qhc4 Nc8+ Kc5 Ka5 Kd4 Ne6+ Ke4 Bg3 Qd4 N6c7 Qf2 Bh2 Qh4 Bg3 Qd7 Kb6 Qd6+ Rc6 Qf8 Rc5 Qh8 Rc3 Qc6+ Ka5 Qc4 Kb6 Qc5+ Kb7 Qc4 Rc1 Qc6+ Kb8 Ke3 Rc3+ Ke2 Be5 Kf2 Bg3+ Kg2 Bh2+
3bQ1B1/1NkR3R/2rbq1bK/R1PpRp2/b2b1n2/2b5/B2rrNQ1/6N1 b - - 0 1 illegal: No possible last move, all moves rejected
4KRN1/1n1N2Nr/3pRQn1/2n1q1r1/3Q3n/3Ppb2/N3r2R/B1Bk1nn1 b - - 0 1 legal: proof: b4 b5 f4 h5 a4 e6 g4 hxg4 axb5 c5 Bg2 cxb4 Bf3 Bd6 Be4 f5 e3 fxe4 f5 Bf4 exf4 Qg5 Kf1 Qe7 Ke1 Qd8 Kf2 Kf7 Ke3 Kf6 Kd4 g5 Kc5 a5 Kd6 e3 h4 b3 c4 b2 b6 e5 d3 e4 h5 g3 h6 g4 h7 g2 b7 a4 c5 g3 c6 a3 c7 a2 Rh4 e2 Bd2 e1N Na3 b1N Qc2 e3 Rh2 Nf3 Nh3 g1R Qc4 g2 Ng5 Ne7 Nb5 Ng6 Nc3 Qe8 Ne6 Na6 b8N Nfh4 Ng7 Nc5 Bc1 Bb7 c8N Bf3 Ne7 Nd2 Kc7 Nb7 Qd4+ Ne5 Rb1 a1N Na2 Nf1 Rb2 Nb3 Ng8+ Kf7 f6 Kg6 f5+ Kg5 f7 d6 f8R Neg6 f6 Qe5 f7 N3c5 Nd7 Ra3 Kc8 Rb3 Rc2 Rb2 Rf2 Re2 Re8 Be4 f8B Kg4 Re6 Kg3 Rf5 Bf3 Be7 Kf2 Rf8 Ke1 Bf6 Kd1 Kc7 Na5 Kd8 Nab7+ Ke8 Rh1 Ne7 Rg8 h8Q g1N Qh6 Rh8 Ng8 Rh7 Rf2 Rh3 Rh2 Rg3 Qhf4 Qe4 Be5 Rg5 Qf6 Qf5 Qd5 Qe4 Ba1 Qe5 Qd4
b3b1b1/N3B1pq/N2PN2B/b3r1n1/2n1NQb1/p2B1QK1/b7/1n1R2Rk b - - 0 1 illegal: No possible last move, all moves rejected
4bK2/B1Bq1B2/3NN2B/1P2R2p/p1q4b/N1rn4/1q2qqQR/Qnk3q1 b - - 0 1 legal: proof: f4 a5 b4 b5 d4 g5 h4 gxh4 a4 e5 axb5 exf4 c4 c5 b6 cxd4 b7 a4 c5 Ra6 b5 Rb6 cxb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kh5 Ke4 g4 f5 e3 d5 g5 h3 g6 f3 g7 h2 Bd2 f2 Bg2+ Kd3 e4 f1Q e5 f4 e6 f3 e7 f2 e8N Nc6 b8B Nb4 b7 Bd7 Qe1 Kc2 Qe7 d3 Bf3 d4 Be5 Nf6+ Kh6 Nfd5 b8B Nc3 Qe6 Qf6+ Kh5 Be7 Nc7 Rc8 Bh6 d2 g8Q d1Q Ne2 d3 Bd5 d2 Ba7 Nd3 Qg2 Be8+ Qf7 Qh8 Ne6 Bh4 Bc7 Qfe1 Ba2 f1Q Na3+ Kb2 Rc1 Nb1 Rc5 Qef2 Re5 Qc2 N2d4 Qc4 Bb3 Kc1 Nf5 Qg7 Qfg6 Q1g1 Nd6 Qd7 Bg7 d1Q+ Kh6 Qdf1 Qf6 Q1e2 Bf8 Qdc6 Kg7 h5 Kg8 Qd7 Bg7 Qb2 Kf8 Qd1 Rhe1 h1Q R1e2 Qdd2 Bh6 Qhg1 Rc5 Qcc3 Bd8 Qc6 Qd5 Qf3 Nf4 Qd7 Rh2 Qff2 Qg2 Qde2 Bf7 Qbd2 Ne6 Rc7 Rf5 Qb4 Qa1 Rc3 Rg5 Qc4 Bc7 Qb2 Re5+
B2rNr2/B3r1pr/1Q2NR1b/q5PQ/1b1NK1n1/1p2B1Rb/1b3B2/4kr2 b - - 0 1 legal: proof: c4 d5 e4 a5 h4 f5 b4 axb4 d3 fxe4 h5 c5 h6 Nxh6 Be2 Ng4 Bf1 Nh2 Bh6 d4 Bc1 Nd7 Nd2 Nb6 Nb1 Qd5 cxd5 c4 Be2 c3 Bf1 Nc4 dxc4 Bf5 Bg5 Bd7 Bc1 Bc8 Ke2 Kd7 g4 Kd6 f4 Kc5 a4 e5 a5 h5 f5 b5 f6 d3+ Ke3 b3 a6 Kb4 c5 c2 f7 h4 d6 b2 a7 d2 c6 h3 d7 Rh7 Na3 Kc3 d8B b1R c7 b4 Nf3 b3 Nc4 Ba3 f8B Bb2 Rg1 Be6 Qe2 d1R c8Q Rb8 Bb6 Rd8 a8N Rb7 Qb8 Re7 Kf2 e3+ Kg3 e4 Kf4 Bc8 Nd4 Rh8 Qd1 e2 Rg3+ e3 Ra6 e1B Nd6 Ra1 Bd3 e2 Be3 c1B Be4 Bed2 Bc6 e1Q Ba7 Kd3 Qf3 Bb4 Nc7 Qc3 Rb6 Bd2 Ba8 Rf1 Nce6 Qc5 Nb7 Qa5 Nd6 Kc3 Ke4 Bdc1 Bf2+ Kd2 Be3+ Ke1 Ne8 Bd7 Bg1 Bh6 g5 Ng4 Ra6 h2 Qb6 h1R Qf7 Rf3 Qh5 Rh7 Be3 Rhf1 Bg1 Ref7 Bd6 Bc8 Bf4 Re7 Bc1 Rf8 Bce3 Qa3 Ra5 Qa1 Rf5 Qa5 Rf6 Ne5 Nf4 Bh3 Nfe6 Ng4 Bgf2+
1r3R1K/2q1np2/4Rr2/b1RQq3/BQ1Pr2R/N1Np2r1/r3kB2/1rQ4b b - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 Rh2 g5 Rh1 gxh4 d4 cxd4 c3 d3 Kf2 d2 Nh3 d5 Ra2 d4 Ng1 d3 Ra5 Nc6 Ra1 Nd4 cxd4 Ba3 Qb3 Bb4 Qd1 Bf8 Kf3 Kd7 Kg4 Ke6 Kh5 Kf5 b4 Ke4 g4 Ke3 g5 a5 b6 f3 g6 h6 b5 f2 b7 a4 b8Q h3 b6 h2 b7 a3 g7 a2 Bh3 f1R Bd7 Bb4 Na3 Ba5 Ba4 Ne7 g8Q Qc7 Qd8 Re8 Qd5 Rf6 Rb1 a1R Rb5 Be6 Rc5 Ra2 Qc2 Kf2 e4 Bd7 e5 Bc6 Qb1 d1R Ne2 Rg1 e6 Rg3 Nc3 Qe5+ Bg5 Qc7 Qc8 Rb8 Bh4 Ke3 Qb4 Kd2 Rf1 h1Q Rf4 Qe1 Re4 Rg1 Bf2 Rg3 Rh4 Qe3 Qdc4 Bh1 Qd7 Qe4 Qdd5 Qe3 Nd1+ Ke2 Qc1 Ra8 b8R Qe4 Rd8 Rb8 Qf5 Qee5 Rc8 Reg8 Rf8 R8g4 Qfg5 Nf5 e7 Re4 e8R Ne7 Rg4 Nd5 Re6 Ne7 Kh4 h5 Qf5 Ng8 Kg5 h4 Kh5 h3 Rh4 Ne7 Qfg5 Rff4 Kh6 h2 Kh7 Rf6 Qf5 Bg2 Qfg5 h1R Kg7 Re1 Kh8 Bh1 Nc3+ Kf3 Qc2 Rea1 Qcc1 Rb1 Ncb5 Ke2 Qf5 Qed6 Qd5 Qe5 Nc3+
3r1r2/3PR2K/R4pQb/BN1k1bB1/1r1Qn1b1/Q5pR/2b4N/1Qrq3r b - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 axb5 gxf4 e4 c5 g5 Na6 Be2 Nc7 Bg4 hxg4 Be3 cxd4 Bc1 d3 Kd2 d4 Ke1 Nd5 exd5 Rh4 Ne2 Rh6 Ng1 Rh8 Kf2 Kd7 b4 Kd6 c4 e5 h4 a5 b6 g3+ Kf3 a4 Ke4 a3 b5 f6 b7 f3 b8B+ Kc5 h5 d2 h6 f2 g6 f1B d6 a2 d7 d3 Kf5 e4 b6 e3 g7 e2 Kg6 e1R h7 Re4 b7 Nh6 g8Q Nf7 Bc7 Qe8 b8Q Be2 Nc3 Bg4 Qb1 Bh6 Rh3 Bb7 Ba5 Rd8 Nf3 Ng5+ Qf7 Rf4 Nh2 Rf8 h8R Qe1 Nb5 Ne4 Kh7 Qe2 Qdb3 d1B Qg6 d2 Qa3+ Kc6 c5 Bc2 Rg8 d1R Rg7 Kd5 c6 Rh1 c7 Qd1 c8Q Bf5 Qcc3 Ba6 Nd6 Be2 Nb5 Beg4 Bd2 Nc5 Qcb2 Rb4 Re7 Ne4 Bg5 Re1 Q1c1 Rh1 Qd4+ Kc6 Rb1 a1R Rb2 Rb1 Ra2 Ra1 Qcb2 Rc1 Qb1 Bb3 Qab2 Rc5 Bb6 Rc1 Ra6 Ba4 Qa3 Bc2 Qg1 Kd5 Ba5 Bh5 Qb6 Bhg4 Qd4+
K1nQ1qQr/B5QR/4Bb2/3Qr1kq/3R1N2/2pb2P1/1Nr1p1B1/1qqr4 b - - 0 1 legal: proof: a4 d5 f4 b5 axb5 f5 c4 dxc4 e4 fxe4 f5 Nc6 g3 Ne5 h3 Ng4 f6 gxf6 hxg4 f5 Rh5 f4 Rh4 Ba6 Rh1 Bc8 Ke2 Kf7 b4 Kg6 d4 c5 d5 e5 b6 h5 d6 a5 b5 a4 d7 e3 Kf3 c3 Ke4 c4 Kd5 a3 Kc6 e2 b7 e1R b8Q a2 b6 e4 g5 f3 b7 c2 Nd2 h4 Rh3 e3 Qe5 c3 b8Q f2 Bg2 f1Q Ne2 Ba6 Nc4 Be7 Nb2 Qdf8 d8Q Bd3 Kb7 Bf6 Qbc8 Kh5 g6+ Kh6 g7 Ne7 Rh1 h3 g8B h2 Nf4 e2 Qc4 Ra5 Be6 Nc8 Be3 c1R Ba7 Rc2 Ka8 Qg1 Qed4 Kg5 Ng6 Re5 Q4d7 Qe3 Qg7 Qc1 Rb1 a1Q Qb3 Bc4 Q1d5 Rd1 Qb8 Qa2 Ra1 Qb3 Ra4 Bd3 Rd4 Qb5 Qbc7 Qa5 Qg8 Qaa1 Qcg7 Qab1 Re1 h1Q Rf1 Qh6 Rh1 Qh5 Rhh4 Qg4 Rh7 Qh5 Nf4+
BnRR3k/1K2NRBr/1RpQ1Q1q/2qnr2P/r6p/4n1br/4n3/2NB4 b - - 0 1 illegal: No possible last move, all moves rejected
3q4/B1Rnrk1p/1rrqb1Q1/2P3p1/bbR4N/5bB1/rQR2Q1K/1R3N2 b - - 0 1 legal: proof: d4 b5 h4 f5 g4 e5 a4 exd4 axb5 c5 e3 c4 Bd3 cxd3 h5 Nc6 Ra3 Nce7 Ra4 g5 Ra1 Ng6 hxg6 fxg4 Kf1 d5 Kg2 a5 b4 g3 f4 a4 c4 a3 c5 a2 f5 d2 f6 d3 b6 d4 b7 Qa5 b8R Qa7 f7+ Ke7 g7 Be6 e4 Qa3 e5 Qa5 b5 Qb6 Qb3 d1Q Qb2 d2 Rh2 d3 Nf3 Ra6 Rc8 Nf6 g8Q Qd8 b6 Nd7 b7 Rb6 b8B Bg7 Rc7 Bf6 Nh4 Rc6 Qg6 Re8 Qa3 Kf8 Qb2 Re7 Ba7 Bg7 Nc3 Bf6 Rb1 a1R Nd5 Ra2 Ne3 Bh8 Qf5 Bg7 Kh3 g2 Nf1 g1R Rg2 Bf6 Kh2 Kg7 Re2 Rg4 f8R Rb4 Qf2 Rbb6 Re8 Kf7 Re4 Qg4 Re2 d1B Rc2 Bf3 Bf4 d2 Bg3 d1B Rc4 Qf4 Rc2 Bed5 Rc4 Ba4 e6+ Kg7 Rc2 Bc3 Rf8 Qd6 Rf4 Kg8 Rd4 Bb4 Rdc4 Rg7 e7 Kf7 Qa3 Be6 e8Q+ Kf6 Qh5 Re7 Qc1 Kg7 Qb2+ Kf8 Qh6+ Kf7 Qg6+
1NQ1r3/2BBB1p1/1Pp2NQ1/4rnnr/3rqnR1/N4n1k/RK3b2/N2q4 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 h5 Nc3 e5 Nb1 exf4 g4 hxg4 b6 a5 b3 a4 Bg2 a3 Bh3 Bd7 Bf1 Ba4 bxa4 Ra7 Bb2 Ra6 Bc1 Ra8 h4 Kd7 e4 Ke6 d4 f5 Kd2 f3 Kc2 a2 e5 g3 a5 f2 a6 c3 a7 c6 h5 f4 d5+ Kf5 e6 f3 d6 Kg4 e7 g2 e8N Nd7 h6 Nc5 h7 Qh4 d7 Nh6 d8B Nf5 Qd4+ Ne4 Qf6 Bc5 Bf4 Ng5 Ne2 g1N Na3 Rc8 Bg2 f1R a8N f2 Nc1 Rd1 Nb3 f1Q Qg6 Bf2 Bfc7 Nf3 Be7 Rd4 Rg1 Qd3+ Kc1 c2 Kb2 c1N Bf1+ Bg3 Be2 Qd1 Nf6+ Kh3 Ba6 Rb8 Bc8 Qe4 Bd7 Ne2 Rg2 Rhe8 h8Q+ Bh4 Qg8 Bf2 Rg4 Nf4 Qe6 Rh8 Qg8 Rh5 Qc8 Rb7 Rc1 a1R Rc2 Rc1 Na1 Rb8 Qd8 Bh4 Kb3 Qe5 Bcd6 Bf2 Nc7 Qde1 Ra2 Rc5 Kb2 Q5e4 Na6 Re5 Bc7 Qd1 Qg8 Rc8 Nb8 Rf8 Qc4 Rfh8 Qa6 Re8 Qc8
1Q3rBb/2qp2b1/q2n4/pn2n3/P4N1K/NB4R1/RR4Rn/2NQ1qkq b - - 0 1 illegal: No possible last move, all moves rejected
2b2Nb1/5N1Q/2np2b1/1rr3p1/R5rP/1B3rBR/1k2bQRn/2Bb1BK1 b - - 0 1 legal: proof: b4 g5 d4 f5 h4 a5 e4 axb4 Nf3 fxe4 Ng1 c5 Qe2 Qb6 Qd1 cxd4 Nc3 Bg7 Nb1 Be5 Ba6 Bg3 Bf1 Qg6 h5 h6 hxg6 h5 Bd2 h4 Be3 h3 Bc1 Bh4 g3 Rh6 gxh4 Rh8 c4 b5 a4 e5 f4 Ke7 Kf2 Ke6 g7 h2 c5 Kd5 c6 d6 c7 b3 a5 d3 a6 Kc4 a7 b2 f5 e3+ Kg2 b4 f6 b3 f7 e4 f8B e2 Nh3 e1R Ra5 e3 Rg1 h1B+ Kh2 e2 Rg2 d2 Nf4 Nc6 Ra6 Nh6 g8R Rb8 a8Q Ng4+ Kg1 Nh2 Na3+ Kc3 Ng6 b1B Nc4 b2 Qb7 Bd3 Nce5 b1B Bg7 Bbc2 Rd8 Rf8 Ra4 Rf3 Nf8 Bc4 Qa7 Bg6 Re8 Bg8 Qf2 Rb5 Re6 Rc5 Rf6 Rb5 Nf7 Rc5 Ba3 Rb5 Qb1 Rc1 Qe4 Rc2 Bc1 e1R Rf5+ Kb3 Be5 d1B Bg3 Rcc5 Rd5 Be2 Rd3+ Kc2 Qe7 Rd1 Rda3 Rd4 Rd3 Rg4 Qe4 Bb7 c8B Kb1 Bf5 Bc8 Be6 Kc2 Bb3+ Kb1 Be3 Kb2 Bd2 Bd1 Qe7 Be2 Bc1+ Kb1 Qa7 Rff4 Nh8 Rff5 Qh7 Bf3 Be5 Bd1 Rgg3 Bhf3 Rg2 Bfe2 Nf7 Rf6 Rh3 Rf3 Bd5 Kc2 Bg3 Kb1 Bc4 Kc2 Bb3+ Kc3 Bcf4 Kb2 Bc1+
BbBK1RN1/br1b1B2/PQ1N1n2/1p1nnb1p/1r6/3R1n1B/1k3N2/1nQ5 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 h4 e4 h5 e3 g5 Be6 Bb2 Qf6 Bd4 Qg6 Bf6 Bc8 hxg6 gxf6 Qc2 exf2+ Kd1 f5 Kc1 f4 Qb3 Bf5 Qd1 Bc8 Kc2 Kd7 Kb3 Kd6 Kc4 Ke5 Kb5 Kd4 a4 h5 e4 c5 Kb6 f5 Kc7 b5 e5 f3 e6 f4 e7 c4 e8B c3 g7 c2 a5 c1B a6 b3 d6 b2 g6 Ra7+ Kd8 Rb7 d7 Bd6 Rh3 Rh6 Na3 b1B Nc4 Bc5 Nd6 Ba7 Bf7 Nf6 g8B Bf5 g7 Rg6 d3 Kc3 d4 Bd2 d5 Rg4 Qc1+ Kb3 Bg2 f1N Be6 Bde3 Bgf7 f2 g8B f3 Ra4 Bec5 Rf4 Ne3 Rg3 f1N Nh3 Nd2 Nf2 Nb1 Bh3 Bd4 Bh7 Be5 Bhg6 Bd3 Be4 Bc2 Rg1 Ka2 Rd1 Ka1 Rd3 Ka2 Nh1 f2 Rf5 f1N Nf2 Ka1 Ne8 Nh7 Ke7 Ng3 d6 Nf8 Rd1 Rc7 Ba8 Ne2 Nf6 Rb7 Ng8 Nd4 Bg6 Nh7 Rf8 Bf5 Rd3 Nf3 Bgf7 Rb4 Ke8 Bf4 d8Q Nc6 d7 Bfb8 Qb6 Nce5 Ke7 Nd5+ Ke8 Rc7 d8N Ka2 Nb7 Nf6+ Kd8 Ka1 Qe1 Kb2 Nd6 Rb7 Qg1 Bd7 Qf1 Bc6 Bc8 Bcd7 Qc1+
1RB2B2/r4p2/Bk2n1N1/r5NK/3NB1n1/3n4/q1pq2PR/1nQQ1qrn b - - 0 1 legal: proof: c4 a5 h4 g5 d4 gxh4 b4 axb4 e3 d5 Qe2 dxc4 Qd2 Bh6 Qd1 Bf8 d5 e5 Qc2 e4 Qd1 Bg7 f3 Bd4 exd4 e3 Bb2 Bf5 Bc1 Be4 fxe4 Ke7 Nh3 Kd7 Ng1 Ke8 Ke2 Kd7 Kf3 b5 Kg4 c5 a4 Kc7 e5 h5+ Kf3 h3 d6+ Kb6 d7 b3 d5 b4 d6 h2 e6 b2 e7 e2 e8B e1Q Bf4 h4 Kg4 h3 Nc3 b1Q Qc1 b3 Nb5 c3 Ne2 c2 Nbd4 b2 Bh6 c4 Bf8 c3 Nf4 Ra7 Ng6 Rh5 Ba6 Qa2 Rb1 Qf1 Bc8 Nc6 a5+ Kc5 a6 Kb6 Rg1 Ra5 Rh1 Nf6+ Kh4 Qc7 d8N Ng4 d7 Qd6 N8e6 Nd8 Ng5 Ne6 Kh5 Qdf4 Bb7 Q4f2 Bc8 Qd2 d8Q+ Nc7 Qd1 c1N Bb5 Nd3 Qc1 c2 Qd5 Ne6 Bc4 Rd7 a7 Re7 a8B Rea7 Ra1 b1N B4a6 Rc7 Qf3 Re7 Be4 Ra7 Rg1 h1N Qfd1 Qff4 Rf1 h2 Rf3 Qf6 Rh3 Qf1 Rh4 Nhf2 Rh3 h1R Rh4 Rg1 Rh2 Qa4 Ra3 Nh1 Rc3 Qa2 Rc5 Rd7 Rc7 Re7 Ra7 Rb7 Ra8 Ra7 Rb8+
3qr2Q/1brBN3/1Bq4b/1qk1p1P1/b4R2/1p1r2R1/2N1bN1r/4NRKQ b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 b4 fxe4 h4 a5 d4 axb4 f5 cxd4 Kd2 Nh6 Ke2 Na6 Ke1 Nc7 f6 Nf5 gxf5 g4 Ke2 Ne6 Ke1 Ng5 hxg5 Qc7 Nh3 Qb6 Ng1 Qd8 Kf2 e5 c4 h5 a4 b5 a5 d5 c5 Kd7 c6+ Kd6 c7 e3+ Kg2 b3 a6 b4 f7 g3 a7 e2 f6 e1R Qc2 d3 Qd2 b2 Ra2 d4 Na3 b1Q Nf3 h4 Qd1 h3+ Kg1 g2 Bd2 Re3 Ne1 Bb7 c8N+ Kc5 Ne7 Bh6 f8N Rf3 Bc3 d2 f7 d3 Nac2 Re3 Qf3 d1B Ra3 d2 Nfg6 Be2 f8R d1B Nf4 Rd3 Rf6 Rc8 a8Q Rc7 Qe4 Qb3 Qh7 Re8 Qh8 Qbd5 Bd2 Qc6 Rf5 Rd6 Rg3 Rd3 Rf6 b3 Ba5 h2+ Kf2 g1R Nh3 Qb5 Rf4 Bg4 Be2 Bd7 Bg4 Rg2+ Kf1 Rgd2 Nf2 Bdc6 Rhg1 h1Q Bd7 Qe4 Rh1 Be2+ Kg1 Qbc4 Kh2 Ba4 Rf1 Qc6 Kg1 Q4d5 Qa6 Qb5 Qg6 Qdc6 Qe4 Bh5 Qh1 Re2 Nh3 Rh2 Nf2 Be2 Bb6+
2R4N/8/B1b2pN1/Q4RpN/1nQQn1KQ/1q3rb1/1Pq2kpB/1rn1q3 b - - 0 1 legal: proof: g4 c5 d4 h5 f4 hxg4 c4 b5 a4 e5 axb5 d5 cxd5 cxd4 Ra3 exf4 Ra4 Nc6 Ra1 Nb8 Kf2 Kd7 h4 Kd6 e4 Kc5 b6 g5 e5 a5 d6 f3 Kg3 d3 b7 Kd4 e6 a4 h5 a3 h6 a2 h7 d2 d7 Ke3 e7 f2 Rh3 Na6 b8Q Nf6 Ne2 Qb6 d8Q Bb7 Nbc3 Bc6 Qbc8 Nb4 Nf4 Ra3 Ba6 f1Q e8Q+ Be7 Ne4 Bd6 Rh2 Qe1+ Rf2 Rc3 Rb1 a1N Qed7 Bb8 Qa4 Nb3 Q7c7 Qb5 Qca5 Qd3 Qd6 Qc2 Ng6 Rf8 h8N Rc4 Kg2 g3 Kh3 g2 Ng3 Ne4 Nh5 Rd4 Qdd7 Bg3 Kg4 Rd3 Ra1 f6 Qdd8 Re8 Rf5 Ke2 Qd4 d1Q Bd2 Nc1 Bf4 Qb3 Qe6 Qdc2 Qec4 Rd8 Qdd5 Kf2 Qdd4+ Re3 Ra3 Qa2 Rc3 Qab3 Qa7 Rd1 Qh7 Bh4 Bh2+ Rf3 Qd4+ Qe3 Rcc5 Bg3 Qc4 Qe1 Qh6 Bb7 Rc8 Ba8 Qd7 Bc6 Qdd4+ Qee3 Qa2 Ncd3 Ng7 Rb1 Qa5 Nc1 Qh3 Nd6 Qh4 Ne4 Qd1 Qed2 Nh5 Qe1 Qdd4+
3NqN2/4Q1r1/1K3p2/P1N5/bR1Nn1r1/p2bq2B/kR1bqnp1/B4QR1 b - - 0 1 legal: proof: b4 d5 a4 a5 g4 e5 f4 exf4 c4 axb4 cxd5 h5 gxh5 Ke7 Qb3 Ke8 Qa3 bxa3 Kf2 Kd7 h4 Kd6 d4 c5 e4 g5 e5+ Ke7 d6+ Ke6 d7 Kd5 h6 b5 e6 f6 e7 f3 Ke3 f2 e8Q b4 a5 g4 h5 b3 h7 c4 h6 b2 Ne2 g3 Qe7 c3 Rh2 Kc4 d5 Kb3 Kd4 c2 Kc5 Qe8 d8R Bd7 d6 Ba4 d7 Na6+ Kb6 Nc5 Nbc3 b1B Ne4 Ra7 Bh3 f1Q Bb2 c1Q Rb8 Qe3 d8N Bd3 Bd4 Qff3 Rg1 Ka2 Ba1 g2 Nd4 Qfe2 Rb7 Nb3 Nc5 Nd2 Rhh1 Bg7 Rb1 Bf8 Rhg1 Ne4 Rb4 Bg7 Qe5 Bf8 Qf4 Bd6 Qf1 Bf4 Rb8 Rg7 Rb7 Ne7 Rb8 Rhg8 h8Q Nf2 h7 Rg4 Qg7 Nf5 h8N Ng3 Qe7 R8g7 Ng6 Nge4 Nf8 Qg3 Ka7 Bd2 R8b5 Qf4 Kb6 Qg3 Rb3 Qf4 R5b4 Qfe3 Rb2+
rk5n/3Q1b1n/b3P1Nr/pQRq4/p1bR3B/p3KB2/5BB1/N1Qqn3 b - - 0 1 illegal: No proof kernel
2q3N1/1b5B/2p2QPn/bp1B1RR1/1NB1np1r/1K1nB3/4N1qk/2Qrq3 b - - 0 1 legal: proof: c4 e5 b4 d5 cxd5 a5 Bb2 axb4 Ba3 Bc5 Bc1 Bf8 h4 g5 f4 exf4 a3 bxa3 hxg5 Ke7 Rh6 Kd7 Rh1 Ke8 e4 Kd7 g4 Kd6 d4 h5 Kd2 f5 Kc3 b5 g6 h4 g7 f3 e5+ Ke7 e6 Kd6 e7 c6 e8B h3 g5 a2 g6 h2 Ne2 f2 Kb3 f4 Bf7 Ra4 Be3 Nd7 Qc1 Ne5 Nbc3 Nh6 g8B Nd3 Bh7 Bb7 Bfg8 Kd7 d6 Qc8 d5 Rd4 Rb1 a1Q Na2 Be7 Nb4 Bd8 Rg1 h1Q Rg5 Qg2 Rf5 Ba5 Bf7 Kd8 d7 Ke7 d8N Kd7 d6 Qc3+ Ka2 Qe1 Kb3 Rd5 Bfg8 Rd4 Nf7 Ke6 d7 Rd5 Ng1 Rd6 Be2 f1N d8Q Ng3 Bf3 Ne4 Ne2 Ndf2 Ra1 Rd1 Ra2 Nd3 Rc2 Qeg1 Rcc5 Qe1 Rg5 Nc3 Qf8 Kf6 Bd5 Ne4 Rg3 Kf5 Qd6 Ng4 Nh6+ Kg5 Bge6 Kh4 Ng8 Nh6 Rg4+ Kh3 Rg5+ Kh2 Bf7 Qf3 Qf6 Qff2 Bc4 Qg2 Rcf5 Ng4 Bfd5 Qd2 Ne7 Qe1 Bhg8 Rh4 Bh7 Nh6 Ng8
6Rr/K1n2p2/1pb2R2/Prn5/1B1RN3/p3b1Br/1q1Q2k1/n1qQBR1N b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 g4 exf4 gxh5 a6 a4 Qd7 b4 Qd8 b5 axb5 a5 Rh7 Nf3 Rh6 Ng1 Rh8 Bh3 Ra6 Bf5 Ra7 Bc2 Ra8 Ba4 bxa4 Kf2 Kd7 h4 Kd6 e4 Ke5 d4+ Kf6 h6 c5 d6 g5 d5 Ke5 h5 f3 Ke3 c4 h7 g4 h6 f2 d7 f1Q d6 a3 Bd2 g3 Bb4 g2 Nd2 c3 Nh3 g1R Nf2 Qh4 d8Q c2 d7 c1N Qg5+ Ke6 Kd4 Ne7 Kc5 Rg3 Kb6 Rh3 d8R Nb3 e5 Bd7 Nde4 Bc6 Qgd2 Kf5 e6 Qf6 Rd4 Na6 Rb1 Re8 Ka7 Nd5 e7 Rb8 e8R Nac5 Rc1 Bd6 Rg8 Na1 Rc3 Ke5 Rf3 Nc7 Rhg1 Qc4 Rf1 Qc1 Nh1 Qg7 Rf6 Be7 Rfd6 Bg5 Rdf6 Be3 Rc8 Rd8 h8B b6 h7 Rd5 Rg8 Qg2 Rg3 Qe2 Bg7 Rh8 Bh6 Qf2 Rg8 Qh2 Bg5 Qg2 Bh4 Qf2 Rd6 Kf4 Rf6+ Rf5 Q1c2 Kf3 Bg3 Kg2 Qcd1 Re5 Rb8 Rg8 h8B Rd5 Bg7 Rgh8 Rg8 Qe2 Qa2 Qec2 Bf8 Q2b2 Bbe1 Ncb3 Bfb4 Rb5 Rdd8 Nc5 Rd4 Qf2 Qad2 Qe2 Qc3 Qeb2 Qcd2+
2R1q1r1/2p2prQ/Qk2NP2/1n1bNb2/2R1BrpQ/5b2/1Bq5/nN1NK3 b - - 0 1 legal: proof: c4 d5 d4 dxc4 a4 b5 axb5 e5 Qd2 exd4 Qc2 Qd5 Qd1 Qd8 g3 h5 Ra3 h4 Ra1 h3 Bh6 Be7 Bf4 Bh4 gxh4 Qd6 Bc1 Qxh2 e4 Kd7 f4 a5 b4 g5 f5 c3 e5 d3 e6+ Kd6 b6 Kc6 e7 g4 e8N a4 f6 c2 b7 a3 b5+ Kb6 h5 a2 h6 Nc6 b8N Nd4 h7 Nb3 Bg2 Qe5+ Ne2 h2 Bb2 c1Q Nc6 Bf5 Be4 Ne7 Nec3 Nd5 Ng7 Rag8 Ne6 Qc2 Qe2 Rg7 Nd1 Rhg8 h8Q Nc3 Rf1 h1B Qh7 Bg2 Rf4 Bh1 Qeh2 Bf3 Q2h4 Bh1 Ng5 Qe8 Ne5 Bg2 Ne6 Bh1 Bc6 Bd5 Rc4 d2+ Kf2 Ka5 b6 Nb5 b7 Kb6 b8Q+ Ka5 Qa8+ Kb6 Ne3 d1B+ Ke1 B1f3 Nd1 Qd3 Na3 Qc2 Rb1 a1R Qc8 Bh1 Bb7 Bdf3 Be4 Ra2 Ra1 Bhg2 Nb1 Ra4 Ra3 Na1 Rd3 Bh1 Rd8 Bhg2 Bd3 Bd5 Be4 Bf3 Qa8 Ra3 Rc8 Rd3 Qa4 Rd4 Bd3 Rf4 Be4 Qe7 Qa3 Qe8 Qa6+
B1N2R1q/1PpnN3/5NB1/1rn2Np1/3B2pk/Qq1r4/b1Rr1Q1K/1b3b2 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 g6 g4 e6 h4 Bg7 f5 exf5 h5 fxg4 h6 Nd7 hxg7 Nb8 Kf2 Ke7 Kg3 Kf6 d4 a5 e4 h5 b4 a4 d5 a3 e5+ Kf5 b6 g5 e6 h4+ Kh2 a2 d6 h3 b7 c3 b5 c2 e7 f6 e8B Be6 b6 Ra5 d7 Na6 b8Q Rb5 Ne2 Nc5 Be3 c1Q Qe1 Qb2 Qa7 Qb3 Bd4 Rh4 Ng3+ Kf4 Nd2 f5 Bg6 Nf6 Nc4 Qh8 d8N Nfd7 Rd1 a1R g8N Ra2+ Bg2 Rd2 Nd6 Rd3 Ba8 Rh5 Kg1 h2+ Kg2 Rh3 b7 Rd2+ Qe2 Bc4 Rc1 Bd3 Qa5 Bb1 Rc2 Ba2 Rb1 h1B+ Kg1 Bf3 Nf6 Be4 Nc6 Bd3 Ne7 Be4 Nh1 Rhd3 Qe1 Kf3 Qa3 f4 Ndc8 Bf5 Nf2 Kg3 N2e4+ Kh3 Ng3 f3 Qf2 Kh4 Kh2 Be4 Qe2 f2 Qe1 f1B+ Qf2 Bd5 Re1 Bg8 Re5 Bb1 Rd5 Nf8 Rd8 Nfd7 Rf8 Qa4 Na7 Bga2 Nac8 Qb3 Ngf5#
6Nb/4qB1N/3kB2b/P1Q1R1R1/p1Kn1p1p/3Bb3/1bn2rB1/Q3b1Qr b - - 0 1 illegal: No proof kernel
B3n1b1/1Q1r1r2/2RRQkrQ/r1p1N2n/1N1p4/1PQ2KBn/2R4p/qb6 b - - 0 1 illegal: No possible last move, all moves rejected
n2N1R2/4pN1Q/rR4Q1/1n1KppnQ/1rB2q2/2P2k2/rQb1r1R1/4bB2 b - - 0 1 legal: proof: d4 b5 e4 b4 e5 b3 d5 Na6 d6 cxd6 axb3 dxe5 b4 Nb8 b5 Bb7 Nf3 Ba6 Ng1 Bc8 f4 g5 fxg5 h6 g6 Bb7 Ra5 Ba6 Ra1 Bc8 g4 Nf6 g5 Ne4 g7 Nf6 g6 Ng8 Bg5 hxg5 Kf2 a5 Ke3 d5 b4 Kd7 h4 Ke6 b6 Kf5 b5 d4+ Kf3 d3 b7 d2 h5 g4+ Ke3 a4 b6 g3 h6 a3 h7 g2 Ra2 Nh6 g8Q Nd7 b8R Ra6 b7 Nb6 g7 Qd4+ Kf3 Na8 Nh3 g1R Nf4 Rg2 Nc3 Re2 Ne6 f6 Qb1 d1N Nb5 Nc3 Nd8 Nf7 Rh6 Kg5 Rb2 a2 Nd6 Nb5 c3 a1R Rg6+ Kh4 Rg2 R1a2 Qg6 Bf5 Rc8 Bc2 b8Q Nh6 Q8f7 Kh3 Qe8 Nf7 g8B Bh6 Qb6 Bd2 Rb1 Na3 Qb2 Nb5 Rb8 Be1 Rc8 Nh6 Bc4 Nf7 Rb8 Rg8 h8Q+ Qh4 Qgh5 Rg4 Q8h7 Rge4 Bb3 Rb4 Bc4 Rf2+ Ke3 Ng5 Qeg6 f5 N6f7 Bd1 Kd3 Re2 Nc6 Ba4 Rf8 Bb3 Ncd8 Ba4 Rh2+ Kg3 Rf2 Qg4 Rg2+ Kf3 Qa3 Nbc7 Bd5+ Rbe4 Rb6 Nb5 Qb2 Bd1 Qh2 Qf4 Be6 Nd4 Kc4 Bc2 Kc5 Nb5 Q2h5+ Ke3 Bd5 Rb4 Bc4 Ke4 Rg4 Ke3 Kd5 Kf3 Rg2+
3bR1kB/nQb4r/p2Bq1R1/3N2p1/q2b2PB/1QNQ4/n1Kp1r1b/4Q3 b - - 0 1 illegal: No possible last move
1NNN2r1/k2n1q1Q/NRpq1R1K/2Pp4/5Qr1/p1qB1n2/2R2r2/1B3bn1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 e5 axb5 exd4 Ne2 f5 Ng1 fxe4 g4 Ke7 f4 Bb7 h4 Nc6 f5 Nb8 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ke8 Rh3 Ba6 Rh1 Bc8 Ke2 h5 b4 a5 c4 h4 g7 e3 Kf3 h3 Kg4 e2 g6 e1N c5 d6 b6 Kd7 b7 Kc6 Nf3 h2 Qd2 a4 Ng5 a3 Ne6 d3 f6 f3 Kg5 f2 Qf4 d2 Nc3 d1R Rb1 Rh4 Bd3 f1Q Nd5 Ne7 g8B Nf5 g7 Nd4 Bgh7 Rd2 g8Q Nd7 b8N+ Kb7 b5 c6 b6 Rg4+ Kh6 Ndf3 f7 Ng1 f8R Rf2 Na6 Nef3 Ne7 d5 Rf6 Qc1 Bhg6 Qc3 Qh7 Qe8 Rb2 Qf7 Rc2 Rb8 Bge4 Ka8 b7+ Ka7 Bf5 Ra8 b8N Bb7 Nb4 Ba6 Nd8 Bb5 N4a6 Bc4 Bde4 Bf1 Bd3 Ne2 Rg1 h1Q+ Qh2 Qg2 Qf4 Qg3 Rg2 Neg1 Rb2 Qe5 Rb6 Qd6 Bb1 Rb2 Re2 Qe1 Rc2 Qc3 Bd3 Ra2 Rc1 Rf2 Rc2 Nde5 Nd7 Rc8 Ndb8 Nd7 Ne6 Rf8 Nd8 Rfg8 Nc8+
4Q1Q1/1q1n1n2/rRN1b1k1/Q4p2/bKBb2pP/Np3RQN/5n2/3Bn2n b - - 0 1 legal: proof: f4 b5 b4 d5 g4 f5 c4 a5 cxd5 axb4 g5 h6 Bb2 Ra6 Bd4 Rf6 gxf6 e5 Bf2 exf4 Bh4 Bd6 Bg5 hxg5 Qc1 Bc5 Qd1 Bf8 e4 Kf7 h4 c5 d4 f3 Kd2 f2 a4 g4 e5 g5 a5 b3 Kc3 b4+ Kc4 b2 d6 g3 d7 g2 a6 g4 a7 Rh6 a8Q Bg7 d5 Qb6 d8Q Qb7 e6+ Kg6 e7 Nd7 f7 Bd4 Nh3 g1N e8B Nf3 d6 Ne1 Na3 b1B Qf3 Bc2 Qda5 Ba4 Qg3 b3 Be2 f1N Bd1 Nf8 Bc6 Be6+ Bd5 Nd7 f8Q Bg1 Kc3 c4 Qac8 Bb6 Kb4 c3 Rh2 c2 Bc4 c1N Rf2 Ba7+ Nb5 Bd4 Rf3 Ne2 Qcd8 Nc3 Qb8 Ne4 Qfe8+ Kh7 Qbd8 Nf2 Qc8 Rg6 Rc1 Nh6 Rc2 Nf6 d7 Nf7 d8N Nd7 Nc6 Rh6 Qcb8 Kg6 Rc1 Nh1 Rcc3 Nd2 Rcd3 Ne4 Qg8+ Bg7 Rd6 Nef2 Qge8 Qc7 Na3 Bd4 Na7 Qb7+ Rb6 Rh7 Nc6 Rg7 Qh8 Rg8 Qbe5 Ra8 Qeb8 Ra7 Qbe8 Ra6 Qhg8+
n4BrR/2R2bnn/p6Q/R2PnbpN/nN2bk1N/K1Q5/2Rq1p2/3B4 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 c5 exf4 c6 f3 Ra2 dxc6 Ra3 c5 Ra1 c4 h4 a6 h5 g6 h6 Bg7 hxg7 f4 Nc3 Ra7 Nb1 Rb7 Ra3 Rb5 Ra1 Rf5 gxf5 Qd3 Nh3 Qd4 Ng1 Qd8 b4 Kf7 e4 Kf6 d4 Kg5 Kd2 c5 Kc3 h5 Kb2 f2 b5 a3+ Ka2 c3 f6 c2 f7 c4 f8N h4 e5 h3 b6 h2 b7 c3 e6 Nd7 b8R Ngf6 g8R Nb6 e7 Nh7 e8Q Bf5 Qd7 Na8 Kb3 a2 Rg7 Rg8 Ba3 c1N+ Kb4 c2 Qe6 f3 Qde1 Kf4 Qc3 g5 Qh6 Ne2 Rc7 c1N Nd7 Ng3 Rbc8 Nh5 Nf6 Ng7 Be2 f1B Bd1 f2 Nf3 Bc4 Nh4 Bf7 d5 Nd3+ Ka4 Ne5 Bf8 Qd6 Na3 Qe6 Rc1 a1N Nc2 Nb3 Ra1 Nc5+ Ka3 Na4 Nb4 Qb6 Ra2 Qd4 Rc2 Qd2 Nh5+ Ke4 Rg1 h1B Rb8 Bg2 Rh1 Bf3 Rb5 Bg2 Ra5 Bf3 Ng3+ Kf4 Nh5+ Kg4 Qg6 Nf6 Ng3 Nd3 Ng2 Ne5 Rh8 Nh7 Nh4 Kf4 Qh6 B3e4 Nh5+
3b3r/1b2n1p1/1R2N3/bRP1p1B1/1b2N2Q/R2pkN2/qB1nN3/Q1b1K2n b - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 a4 b5 axb5 c5 g5 cxd4 f5 Ra6 Bh3 Rd6 Bg4 Rf6 gxf6 hxg4 c4 Kf7 h4 d5 b4 e5 b6 e3 b7 e2 b5 a4 h5 a3 b6 g3 h6 g2 h7 a2 Rh6 Nd7 b8Q Nc5 b7 Qa5+ Bd2 Nb3 Rg6 Bb4 Qa8 Ne7 b8R Rf8 Qc6 Ba6 Rb5 Bb7 Qd7 Qa7 Nf3 g1B Nc3 Rg8 Rc1 a1B Ne4 Bb2 Rc3 Qa2 Qa1 Bc1 Re3 Ba5 Bc3 Bd8 Bb2 Rf8 Rc3 Bge3 c5 Bed2+ Kf2 e1B+ Kf1 Na5 Ra3 Nc4 Rh6 B2a5 h8N+ Kg8 Qc8 Beb4 Ng6 Kf7 Nf4 Rh8 Ke2 d3+ Kd1 d4 Ne2 d2 Qe6+ Kf8 f7 Ng6 Qc8 Ke7 f8N Kf7 f6 Ne7 Nd7 Ke6 f7+ Kd5 Nf8 Bac7 Qg4 Bca5 Kc2 d1N Rhb6 Nf2 Qh4 Nh1 Kd1 d3 Ne6 Nd2 f8B Nc8 Be7 Kc4 Bg5 Ne7 Nf2+ Kd5 Ng4 Ke4 Ke1 Qd5 N2f4 Qa2 Nf6+ Ke3 Ne4 Qc4 Nc3 Qd5 Ne4 Qa2 Ne2+
4Br1Q/5bpK/2p3N1/2n3Rb/k4QbR/nbQp2b1/Q4NqP/1n1R1B2 b - - 0 1 legal: proof: f4 a5 c4 e5 d4 h5 e4 b5 g4 Bc5 gxh5 Bf8 d5 Ra6 b4 axb4 Bb2 Rg6 f5 Re6 Bd4 exd4 e5 d6 c5 dxc5 fxe6 c4 Kd2 f5 a4 b3 a5 c3+ Kd3 c2 a6 c1N+ Kd2 f4 d6 f3 h6 d3 Ke3 b2 Ke4 f2 Kf5 b4 Kg6 b3 h7 Nd7 e7 Nh6 a7 Ng4 a8B Nc5 Na3 Kd7 e8R b1B Nc4 b2 Qd2 Bc2 Qe3 b1B Qf4 Ba2 Nh3 Ne2 Rd1 Bcb3 Rg1 Ne3 Rg5 Nc3 Be4 Rg8 h8Q Nc2 Kh7 Nb1 Bg6 Kc6 e6 Kb5 e7 c6 d7 Nca3 Ne5 Qa5 d8Q Qd2 Bf7 Bg4 Qa8 Qe2 Rc8 Qf3 e8Q Bd6 Ng6 Qg2 Qd8 Rf8 Be8 Bf7 Qdf6 Bab3 Qc3 Bb8 Be2 f1B Nf2 Be5 Rd8 Bc7 Rd4 Bh5 Qf3 Bg3 Rh4 Bg4 Qf4 Bh5 Bg4 Be2 Bh3 Beg4 Qa7 Nc4 Qa2 Nca3 Qff6 Ka4 Qf5 Qg1 Bf1 Qg2 Qf4+
1BbN2r1/2p2qQ1/BN2NR1Q/1kb1pR2/7n/P3Q1p1/4qb1n/bK1b2Q1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 axb4 e4 fxe4 g4 b5 g5 Ba6 d6 Nc6 g6 hxg6 d7+ Kf7 Nf3 g5 Ng1 Rc8 dxc8Q g4 Bd3 Ke8 Bc4 Nd4 Bf1 Nc6 h4 e5 d4 g5 Kd2 e3+ Kc2 g3 f4 e2 f5 e1B h5 g2 d5 g4 a3 Bf2 d6 Nge7 f6 Ng6 h6 Rg8 h7 Bd4 h8Q Nh4 Nf3 g1B Ng5 Bgf2 Nc3 b3+ Kb1 b2 Ne6 b4 Qg7 g3 Na4 Bb7 Qa8 Bc8 f7+ Kd7 Bg2 Qf6 Qg1 Be7 f8Q Qf7 Bh6 Bc3 Ra2 Nd4 Bb7 Ndf3 Be3 Nh2 Ba7 Bcd4 Bb8 Bc3 Kc2 b1B+ Kc1 b3 Qa7 Bc2 Qe3 Bd1 Kb1 Ba1 Rc2 b2 Rc6 Bf3 Qgh6 Bd1 Qfg7 Ng4 Rh3 Nh2 Rb6 Ng2 Rh5 Nh4 Rf5 Bf8 Rb4 Be7 Rbf4 Bf8 Ba6 Kc6 d7 Bc5 Bb7+ Kb5 d8N Bf3 Nb6 Be2 Kc2 b1Q+ Kd2 Qe1+ Kc2 Qd2+ Kb1 Bd1 Rf6 Qe1 R4f5 Qe2 Ba6+
3N3Q/P1NbrbBB/qQ2Q2K/5b2/2R3k1/pprR2n1/Q3p3/qbB4b b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 d4 gxh4 a5 c5 Ra2 cxd4 Ra4 Bh6 Ra1 Bf8 Bg5 b5 Qe2 Bh6 Bc1 Bf4 Qf3 Bc7 Qd1 Bb6 axb6 Bb7 Be3 Ba6 Bc1 Bc8 b4 a5 Bf4 a4 Bg5 Nc6 Bc1 Na5 bxa5 Ra6 Bd3 Ra7 Bf1 Ra8 Kd2 Kf7 c4 Kf6 f4 Kf5 a6 h5 b7 e5 b8B d5 a7 a3 g3 b4 c5 h3 c6 h2 c7 b3 Qe1 d3 Ke3 d2 Ba6 d1B Qf2 h4 Bd3 h3 Ne2 Nh6 Nbc3 Qf6 Nd4+ Kg4 f5 Bc2 Ncb5 Rh7 Ne6 Bb1 Nd8 Re7 Rd1 h1B Qa2 Bd7 c8Q h2 Qc5 Qa6 f6 Bf3 f7 h1B Bd6 Rc8 Qb6 Rc3 f8Q Bf5 Qh8 d4+ Kf2 Bfg2 Nc7 e3+ Ke2 e4 Be5 Bh3 Bg7 Bd7 Rd2 Nf5 Rd1 Kg5 g4 Kf4 g5 Kg4 g6 Ng3+ Ke1 e2 Kf2 Bf5 Bc2 d3 Ke3 d2+ Bd3 Bc2 Rb1 Bd7 Rb2 Bb1 Rc2 Rc6 Rc4 e1Q+ Kd4 e3 Be4 Be6 Ke5 e2 Kf6 Qg1 Bf8 Bf7+ Kg7 Qd4+ Kh6 Qa1 Bg7 Rc5 Rf1 d1B Rf3 Bdc2 Rd3 Qa4 Bgb2 Qa6 g7 Kh4 g8Q Bd7 Bg7 Kg4 Rcd4 Rc3 Rc4 Kh4 Bh7+ Kh3 Rd1 Bcg6 Rd3 Bgf5 Bd4 Kh4 Qgg6 Kh3 Qge6 Kg4 Bg7+
q1QbKn2/7Q/2N2q1b/k2R1Q2/N1Ppp2R/r1rN2Bb/B3pQq1/1b6 b - - 0 1 illegal: No possible last move
K4R2/1N3bn1/kr4Q1/1q4p1/q2rN3/nn1RN1pB/R3qNpP/2Q1B2q b - - 0 1 legal: proof: g4 b5 a4 c5 axb5 f5 d4 fxg4 e3 cxd4 Ke2 d3+ Ke1 d2+ Ke2 Qa5 Nh3 Qb6 Ng1 Qd8 Nc3 d5 Na2 h5 Nf3 d4 Ng1 e6 Nc3 Bc5 Nb1 g3 Kf3 d3 Kg2 Bb6 Qg4 Bd4 exd4 hxg4 c4 Kd7 f4 Kc7 b4 Kb6 c5+ Kb7 d5 d1Q c6+ Kb6 f5 g5 d6 a5 d7 d2 f6 e5 c7 e4 f7 a4 f8R e3 Ra2 a3 Nc3 e2 Ne4 e1Q Nh3 Qde2+ Nhf2 d1Q Bd2 Kb7 b6 Qf6 d8N+ Ka6 b7 Ne7 b5+ Ka7 b6+ Ka6 Rg1 Be6 c8Q Rh4 Qc1 Nbc6 b8Q Bc4 b7 Qf5 Qd6 Rb8 Qg6 Qa4 Ba5 Q1d1 Be1 Bf7 Rh1 Qfb5 Rg1 Ra8 Rh1 Nf5 b8N+ Kb6 Rg1 Ra6 Nb7 Ng7 Nd7+ Ka7 Ne5 Nb4 Nc4 Nc2 Ne3 Rb6 Kh1 Ka6 Bh3 Qdd5 Kg2 Qdd1 Bc3 Qdd5 Rd1 Qdc6 Rd3 Qcd5 Rb2 a2 Be1 Na3 Rbd2 a1N Ra2 Qeb2 Kf1 Qbe5 Ke2 g2 Kd2 g3 Ke2 Qee8 Kd2 Qde6 Kc3 Qd1 Kd4 Q6c6 Bb4 Qh1 Bd2 Qce6 Be1 Qa4+ Kc5 Qeb3 Qc6 Qbb5+ Kd6 Nb3 Kc7 Qe6 Kb8 Qg4 Qh6 Qe2 Qg6 Rg4 Ka8 Rf4 Nd2 Rd4 Nde4
1b2R3/3k2q1/1N1bb3/N2p4/Q1Q2n2/Bqn1BPB1/p3pRqQ/2K1bB1r b - - 0 1 illegal: No possible last move
1B5Q/4b2r/1N4P1/1kr2Q1r/1qBK2nQ/1p1bQ1bp/b1R3qp/4NR1B b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 e6 Kf2 exf5 Ke1 f4 h4 gxh4 a3 b5 Ra2 b3 Ra1 Nc6 a4 b4 Bb2 Na7 Bc1 Nb5 axb5 Kd7 Ra4 Ke7 Ra1 Ke8 Kf2 Kd7 e4 h5 d4 f5 g4 c5 e5 c4 b6 f3 Ke3 f2 d6 Kc6 b7 h3 b8Q h4 e6 c3 e7 b2 g5 h2 d7 c2 e8B b3 g6 h3 Nd2 b1B Ra2 Ra7 Qe5 Nh6 Ngf3 Qe7 Qe2 Qb4 Nc4 Ba6 d5+ Kb5 Ne1 f4+ Kd4 f3 Q2e3 Be7 Qf5 Ng4 d8Q+ Rd7 Ba3 c1B Rc2 Ba2 Bf7 Bd2 Bg2 Rh5 Qh8 f1R Rg1 f2 Bh1 Rc7 d6+ Rc5 d7 Bc1 d8Q Bb2+ Kd3 Be5 Nb6 Bg3 Bb2 Rh7 Be5 Rh5 Bb8 Rh7 Ng2 Rc1 Qdd4 f1Q+ Ke4 Ra1 Ne1 Qg2+ Kd3 Rh5 Rf1 Rc1 Qdf6 Rh7 Qh4 Re5 Rb2 Rc4 Rc2 Rcc5 Qe6 Reh5 Qf5 Bb7 Be6 Bd5 Bf7 Bc4+ Kd4 Bd3+ Bc4+
1bK5/2BnRq1b/B1Q2qp1/pB1Q1q2/n1R1pkr1/2P1Nn2/1N3N1n/5B2 b - - 0 1 legal: proof: e4 c5 a4 g5 d4 cxd4 f4 d5 fxg5 b5 Ra2 bxa4 Be2 a6 Ra1 d3 Bf1 d4 g4 a5 g6 Qb6 g7 Qg6 g5 Qh5 g6 Nf6 g8B Qd5 g7 Qd8 Qg4 Ra6 Qg2 Rd6 Qg6 Rd5 exd5 hxg6 Kd2 Kd7 h4 Kd6 b4 Ke5 b5 e6 h5 a3 b6 a2 b7 Rh7 c3 Kf5 d6 e5 h6 e4 d7 Bd6 Nh3 Ng4 Na3 f6 Nf2 Bh2 Nc2 Kf4 Bc4 f5 g8B Qf6 d8Q Nd7 b8N Nge5 Ne3 Rf7 Rb1 a1Q h7 Qa2+ Rb2 Rf8 Ba6 Qaf7 h8Q Bg3 Rb4 Nf3+ Kd1 d2 Ke2 d1N Rc4 Bb7 Nc6 Nb2 Ne5 Bd5 Rh7 Na4 Qc8 Be6 Qc6 Bh2 Ba3 Bd5 Bd6 d3+ Kd1 d2 Kc2 Be6 Kb3 d1Q+ Ka3 Qd5 Bc7 Qe8 Re7 Qef7 Qh5 Bg3 Bh7 Rh8 Bg8 Bh2 Qh3 Rh4 Qg2 Rg4 Ned3+ Kg5 Nb2 f4 Kb3 Qdf5 Qh3 Nd4+ Ka3 f3 Qg3 Bd5 Qgd6 Be6 Qdd5 Bg3 Nfd1 f2 Bb5 Nf3 Ba6 Q7g7 Bf7 Bh2 Be8 Bg8 Kb3 Qgf7 Ka3 Bh7 Kb3 Nac5+ Ka3 Nb3 Ka4 Nbc5+ Kb5 Bd6 Re6 Kf4 Re7 Nf8 Kb6 Na4+ Kb7 Nd7 Kc8 Be5 Be2 f1N Nf2 N1h2 Bf1 Nb8+ Qce6 Bd6 Beb5 Nd7 Qc6 Be5 Qed5 Bd6 Bb6 Bb8 Bc7+
q1bQ4/B3br2/bN1p2b1/2Q2P1B/QK2n2p/p2qkN1R/1Q1n1R2/1N1q4 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 h4 fxe4 b4 g5 Bc4 gxh4 Bf1 a5 Be3 a4 Bc1 Ra5 bxa5 Bh6 Be3 Bg7 Bc1 Bf8 Kd2 Kf7 c4 Kg6 f4 Kf5 c5 e5 b6 h5 a6 d3 Kc3 d6 b7 d2 c6 a3 c7 e3 g4+ Ke4 g5 h3 f5 e2 a7 e1Q a8N h4 g6 h2 g7 Qe3+ Kb4 Qd3 Qh5 d1B Qh7 Be7 Ne2 Nd7 b8Q Ndf6 Qh6 Rh7 Ng1 Bh5 Bf4 Bg6 Ra2 Kd4 Re2 e4 Nb6 e3 Rf2 Ne4 Be2 Ngf6 g8Q Rf7 Bh5 Nd2 Nf3+ Ke4 Qg5 e2 Be3 e1Q Qe8 Qd1 Qa4 Ba6 c8Q Qe8 Re1 h1B Qc5 Qc6 Rg1 Qa8 Rg3 Bg2 Bd4 Bf1 Qd8 Bc8 Rh3 Be2 Qg1 Kf4 Qcc2 Nfe4 Qb2 Bf1 Nd7 Be2 Ba7 Bf1 Nb6 Ke3 Qc7 Q3c2 Qcd7 Bfa6 Qe8 Qd3 Qd8 Q1c2 Qgc1 Qd1 Qc5+
q4Br1/1b3Qrr/2P3p1/nQ5p/bpRN1N2/k2NN2K/bRQ1B1r1/6q1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Na3 f2+ Kd2 axb6 Nb1 b5 Bh3 b4 Bg2 Nf6 Bf1 Ng8 Ba3 f4 Bc1 f3 h4 g6 h5 Nc6 h6 Bg7 hxg7 Ne5 Rh5 Nd3 Rh1 Nf4 gxf4 Ra3 Rh4 Ra4 Rh1 Ra8 c4 Ke7 e4 Kd6 a4 Kc5 a5 d5 a6 h5 e5 b5 f5 b3 f6 Kb4 e6 b2 e7 d3 Ke3 d4+ Kf4 d2 Kg3 d3 e8Q Qb6 c5 Qe6 f7 Qb3 f8N Bb7 a7 Qa2 Ne6 Qd5 Be2 f1B Nc3 b1Q Qc2 d1R Na4 f2 Ra2 d2 Nb2 Ne7 g8Q Nc6 Nf3 Na5 Qgf7 Rh7 Nf4 Rb8 Qed7 Rg8 a8N Bh3 Qdf5 f1R Nd4 Rf2 Nb6 Rg2+ Kh4 Re1 N6c4 d1B Ne3 Rhg7 Qe5 Be6 c6 Qd8+ Qg5 Qa8 Qe5 Bc4 Kh3 Qa1 Rh2 Bb3 Ra3 Ba2 Rc3 Rf1 Rc4+ Ka3 Bd2 b4 Nbd3 Qc1 Qb5 Re1 Qb1 Ba4 Qc2 Rd1 Be1 Rd2 Bh4 Qg1 Be7 Rd1 Bf8 Rf1 Nfd5 Rf5 N5f4 Rh7 Qe6 Rff7 Qef5 Rfg7 Qf7 Qe1 Rh1 Qf2 Rb1 Qg1 Rb2
b2b2N1/B1Nn4/k1pbR3/r2b1B1K/p1qr2p1/2q2RQB/1P4B1/1Q2R2r b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 h4 g5 g3 Nc6 Qb3 Nd4 Qd1 Ne6 Rh2 g4 Rh1 Ng5 hxg5 fxg3 e4 Kd7 d4 f5 b6 Kc6 g6 Kb5 b7 a5 b8Q+ Ka6 g7 h5 d5 f4 e5 a4 d6 g2 Kf2 f3 Kg3 f2 e6 c6 e7 Ka5 Kh4 c3 d7 c2 Ra3 Qc7 e8B Ra6 d8R Qe5 Bd7 Nf6 g8B Bd6 Nc3 Bb7 Nb5 Ba8 Bd5 Qc3 Nf3 g1R Bh3 f1Q Be3 c1B Re8 Qfc4 Bf5 Nd7 Re6 Rd8 Nfd4 Rf1 Kg5 h4 Bdg2 Ra7 Qe1 Ka6 Kh5 Rg1 Bf2 Bg5 Qb1 Rd1 Rhe1 Rh8+ Bh7 Bd8 Nf5 Rd3 Nh6 Rd4 Bf5 Rh7 Bf1 Rh8 Bhg2 h3 Be3 h2 Nc7+ Ka5 Bf2 h1B Bh3 Bd5 Bfg2 Qc1 Rf3 Q1c3 Nb5 Ka6 Be3 Bb4 Qg3 Bd6 Bg1 Kb6 Nc7 Ra5 Nb5 Ka6 Bf2 Rd2 Ba7 Rd4 Nc7+ Kb7 Kg6 Rh7 Ng8 Re7 R6e3 Ree4 Kh5 Rd1 Rg1 Red4 Re6 Rc1 Rge1 Rcd1 R1e4 Rh1 Ne8 Ka6 Re2 B8c7 Re1 Bd8 Nc7+
3Q1Kb1/1bq5/p4Qr1/kR1Rr3/3NN2q/3nN1p1/b2PNpB1/rb2B2R b - - 0 1 illegal: No possible last move, all moves rejected
q3bqn1/QR1Q3p/3nBk2/1qRpB2Q/1N1K1pQ1/q1B5/1P5N/3nb2r b - - 0 1 illegal: No possible last move
7N/1r1r1p1q/1bRPnK2/1bQ2B1N/1p1Nq1pN/2Bb3B/3r2r1/2Q1Rk2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 e4 b5 a4 c5 h4 g5 a5 g3+ Kf3 b3 h5 g2 a6 b4 h6 c4 h7 c3 a7 g4+ Kf2 f3 Kg3 b2 Kf4 f2 Qe2 c2 Rh6+ Nf6 Kg5 Nc6 Nf3 g1R Bh3 f1B Qd1 Rg2 Bd2 c1R Na3 b1Q Nc2 Bd3 Bc3 Bca6 Nh4 Rb8 a8B Rb7 Qg1 Bab5 e5+ Kd7 d6 Ke6 d7 Kd5 e6 Kc4 e7 Nh5 d5 Nd4 Qd1 Qe8 d8Q Ng7 Qb6 Nge6+ Kf6 Nf3 Nd4 Rcc2 Qc1 Ne1 Qa7 Qc6 e8N Rcd2 Ng7 Bc5 Nh5 Rd8 h8N Rdd7 Qa5 Ba7 Qc7 Bb6 Qd6 Be4 Qc5+ Kd3 Rg6 Ke3 Rh6 Kf2 Rg6 Ra7 Bb7 Bed3 Bc8 Qa8 Rh6 Rdb7 Bd7 Kf1 Bc8 Nd8 Bf5 Ne6 Qd6 Qg8 Qc6 Be2 Qa3 Rd7 Qc5 Nd8 Ke5 Rac7 Rc6 Ne6 d6 Rb7 Kf6 Qe4 Rd1 Bed3 Qc1 Qh7 Rxe1+
5rN1/2Np4/n1bR2q1/2r1B1Q1/1Pr1kp2/1KB2Rp1/1Qr3B1/q1B1b1Nq b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 g4 hxg4 b4 e5 a5 b5 axb6 exf4 c3 Nc6 b5 Nb4 cxb4 Bd6 Bg2 Be7 Bf1 Bf8 Kd2 Ke7 Kc2 Kd6 e4 Ke5 h4 g5 h5 f5 b7 a5 b8B+ Bd6 b6 f3 b7 f2 h6 a4 h7 d3+ Kc3 d2 Kc2 g3 Bc4 f1R Qh5 d1Q+ Kc3 a3 Bb3 g4 Ba2 g2 Qe8+ Ne7 Rh3 Ra5 Qg8 Nc6 Bd5 a2 Rf3 Qf6 Na3 Qg6 Nb5 Rf2 Nc7 Rc2+ Kb3 Rac5 Rb1 Kd4 e5 a1Q e6 Bg3 e7 f4 e8N Be1 Nf6 g3 Ba7 Ke5 b8B Bb7 Qd8 Re8 h8Q Rf8 Ng8+ Kf5 Qb2 Ba8 Bf7 Ke4 Qg5 R5c4 Bd4 Rc5 Ba7 Nb8 Bc3 Na6 Bb8 Bc6 Be6 Rc4 Bh3 Qd5 Na8 Qd1 Bbe5 Qd5 Nc7 Qd1 Ne2 g1R Bg2 Rf1 Ng1 Rff2 Ne7 Rfd2 Ng8 Rd5 B1d2 Rdc5 Be3 Qd5 Rd1 Qdf7 Rd3 Qfh7 Bc1 Qh1 Rd6
5b1b/1p1N1b1Q/3bQNR1/7p/2RnR1p1/2n1BP2/3qRKn1/rQqk3B b - - 0 1 legal: proof: b4 a5 h4 axb4 c4 f5 e4 d5 cxd5 fxe4 h5 Ra3 h6 Rf3 gxf3 Qd6 f4 Qxh6 f3 Qh2 a4 Kd7 d4 Kd6 f5 e5 f6 c5 f7 h5 a5 g5 a6 e3 a7 e4 a8R b3 R1a7 e2 Na3 g4 Ra4 b2 Rc4 b1Q Bg2 Nc6 Be3 Nf6 Raa4 Be6 Nh3 Qc1 Kf2 e1N Ng5 Qf4 Rh3 Rh6 Bh1 Ng2 Nh7 Qg5 Rcb4 c4 Rh2 c3 Rc4 c2 Ra6 Qd2+ Qe2 c1B Raa4 Be7 f8Q Bf7 Qh8 Bf8 Ra6 Bb2 Qg8 Ne8 Nf6 Nc7 Qh7 Nb5 Raa4 Qc1 Qc2 Nc3 Qb1 Ke7 d6+ Ke6 d5+ Ke5 d7 Nd4 d8Q Qf4 Ne8 Ra6 d6 Kd5 d7 Qd6 Qb6 Qh6 Bg5 e3+ Kg3 e2 d8R+ Bd6+ Kf2 Ra8 Be3 e1B+ Kf1 Ke5 Nf6 Qd2 Rg8 Bg3 Qhg6 Bf8 Qh7 Ra5 Rg6 Qg5 Bf2 Kf4 Qe6 Ra6 Nc2 Ra8 Nd7 Ra5 Rab4 Ra1 Ne3 Qc5 Nf5 Qc7 Nd6 Qc5 Ne4 Qg5 Be1 Ke3 Nef6+ Be5 Kg1 Ke2 Bf2 Ba3 Ra4 Bad6 Be3 Qh6 Nd5 Bh8 N5f6 Nb3 Re4 Nd4 Rc4 Ra8 Qa2 Kd1 Qb1+ Qc1 Kf2 Ra1 Kf1 Nf4 Re2 Ng2 Kf2 Qg5 Qe8 Qa5 Qc8 Qa2 Qe8 Qd2 Qe6
n2b3q/pKQ2RQk/4rPp1/5b2/BNR4b/b5QQ/BNn1p1N1/5qn1 b - - 0 1 illegal: No possible last move, all moves rejected
k6N/3n2R1/3np3/3PNp1K/1qBR1QRn/1B2rb1n/2np1R2/BQ4nr b - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 d4 gxh4 e3 cxd4 Kd2 d5 f4 d3 f5 d4 f6 Bg7 Ra3 Qb6 Ra1 Qxf6 Ke1 d2+ Ke2 Qf4 Kd3 Qf2 Kc4 d3 Kb4 Bd4 exd4 Na6+ Kc3 Nb8 b4 Kd7 g4 Kc7 g5 Kb7 g6 f5 g7 h5 b6 a5 b5 a4 Nf3 h3 Ra2 h2 Na3 h4 Bb2 h3 Nc4 a3 Rg1 h1N Qb1 h2 Nce5 Rh7 Ng6 Na6 Ba1 Ng3 Nfe5 h1N Nh8 Nf6 g8B Qf4 Bb3 d1N+ Kc4 Ne8 Kd5 Nhf2 c4 Qg4 c5 Nh3 Rf2 d2 Bfc4 a2 c6+ Kb8 b7 Ne2 Rg3 Nc5 c7+ Ka7 b8R Nd6 Rg1 Nd7 Ke6 Bb7 c8R Bf3 d5 Ne3 Rg8 Ng2 Rg7 Nh4 Rg3 Qf4 R3g4 Neg1 Re8 Rc8 b6+ Ka8 Reg8 Qd4 Re4 Qb2 Rd4 Re8 Rgg4 Qc3 R8g7 Qb4 b7+ Kb8 Bb2 a1N Bc3 Nc2 Ba1 Rc8 Ba6 Rc3 Bac4 Ne4 Kf7 e6 Qa2 Re3 Qb1 Ng2 Kg6 Nd6 Nef7 Nhf4+ Kg5 Rh1 Ne5 Nfh3+ Kh5 Nce1 Qe4 Nc2 Qf4 Nh4 Ba2 Ka7 Bcb3 Kb6 b8Q+ Ka6 Qb5+ Ka7 Qf1 Ka8 Qb1 Rc3 Bc4 Re3 Bab3
R1b1BN2/4B1R1/Pk1Q2nK/p4R2/n1rq3n/N2prQp1/1nN5/n2n1R2 b - - 0 1 legal: proof: f4 e5 d4 exf4 b4 h5 g4 hxg4 Nh3 c5 Ng1 cxd4 b5 a5 a3 Qf6 Kf2 Qa6 bxa6 b5 Ke1 b4 Bb2 b3 Bc1 Bb4+ axb4 Rh4 Kf2 Rh5 Ke1 Rh8 Kf2 Kd8 e4 Kc7 h4 g5 c4 d5 e5 f5 c5 f3 Kg3 d3 c6 b2 h5 d4 h6 f4+ Kh2 d2 e6 g3+ Kh3 g4+ Kh4 d3 Kg5 f2 h7 f3 e7 g2 e8R g3 b5 Nh6 Rg8 Nf5 Na3 b1N Ne2 g1Q Nd4 Nh4 Be2 f1N Ndc2 f2 Kh6 Nd7 Rg7 Kb6 c7 Nf8 Bh5 Ne3 Qf3 f1N Be8 d1N Rh3 Rg8 h8N Nb2 Ng6 Ned1 Bg5 Nbc3 Be7 Nfe3 Rh1 Qf2 Rf1 Nca4 Rc1 Neg2 Ra1 Qd4 Rf2 Nge3 Rc1 Ne6 Nf8 Nf4 Rf1 Nfg6 Rb1 Bg4 c8R Bh3 Rd8 Rc8 Rc1 Rc4 Ra8 Bc8 Rf2 Ndc3 Rcf1 Ncd1 Qg4 Qd7 Rf5 Qd4 Qf3 Ne5 Rgf7 Rg4 Rh7 Re4 Rg7 Neg6 Bf7 Kc7 b6+ Kc6 b7 Kb6 Be8 Re6 Ne1 Nc2 b8Q+ Bb7 Rff7 Na1 Rf5 Re3 Qbf4 Bc8 Nec2 Nf2 Qe5 Nfd1 Qd6+
3Qn2R/KnR1r1P1/2NQn1p1/p4p2/1n4n1/2B4B/1RrNRkq1/Q2bn3 b - - 0 1 legal: proof: h4 e5 a4 c5 d4 cxd4 f4 exf4 g3 fxg3 h5 b5 axb5 g6 h6 Bg7 hxg7 Qb6 Bh6 Qc7 Bc1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kc5 Ke4 b4 d5 c4 a5 e3 h5 b6 g2 b5 d3 b7 h4 b6 d4 Qa4 d2 Na3 d1N Rh2 d3 Nc2 d2 Nd4 h3 Qa3 Qg5+ Nf5 Ra7 Rb1 Nf2 Qa1 d1N Rh1 h2 Rb2 Nf6 Bd2 Nc6 b8Q Re7 b7 Nb4 Kb6 Ne8 c5 Ng4 c6 Ndf2 c7 Nfd3 Nd4 Nf4 Ngf3 g1N Nc6 Ne6 Bh3 f5 Bc3 Bd7 c8R Rh7 Ncd4 Ba4 Nc6 Bd1 Ka7 Kd3 e4 Ke3 Nd2 Nf3 e5 Ne1 Qa8 Kf2 Rc7 Rh6 b8Q Rh4 Rg1 h1N Qd8 Rh5 Qab8 Ng3 Rh1 Ne4 Qd6 N4c5 Qbd8 Ne3 Rh2+ Qg2 Rh1 Nb7 Rh2 Nf8 e6 Rh4 Rh1 Rc4 Rh2 Ng4 Rh1 Rf7 e7 Ne6 Rh2 Nef6 e8R Re7 Rh8 Ne8 Bf6 Rc1 Bc3 Rc2 Rh1 Qd5 Rg1 Qa2 Rg3 Qd5 Re3 Qg2 Re2+
2Qq2b1/4N1P1/bbp2Bbp/r2bR2B/1n1R2Nk/4Rp2/1K3b2/rN1Q2N1 b - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 b4 exf4 h4 gxh4 c4 Ke7 b6 Nc6 c5 Ne5 b5 Nc6 Kf2 Ke8 d4 Na5 c6 Nb7 cxb7 Bc5 Bd2 Bxd4+ Be3 Bc3 Bc1 Bd2 b8R Ke7 e4 Kf6 Ke2 Kg5 Kd3 a5 Kc2 d5 g4 f5 e5 c6 e6 h3 b7 h6 b6 d4 e7 h2 e8N a4 Nf6 f3 Ne4+ Kh4 g5 a3 g6 a2 g7 d3+ Kb2 f2 Qa4 f4 Bg2 f1B Nf6 Be1 Ng4 d2 Qd1 Ne7 Bf3 Ra5 Ra8 Ba6 b8N Re8 b7 Bf5 Nd7 Bg6 b8Q Bf2 Nde5 Nd5 Qc8 Nb4 Ra7 Re7 Rd7 Bb6 Rd4 Ra7 Nd7 Ra8 Ndf6 Ra7 Ng8 Ra8 Qf1 d1B Ne7 Bb3 Qd1 Bg8 Bd2 Ra7 Bc3 Ra8 Ne2 Ra7 Re1 h1B Ng1 Ra8 Re3 Ra7 Be2 Bhd5 Nh2 Ra8 Bh5 Ra7 Ng4 f3 Rf4 Ra8 Rf5 Ra7 Rg5 Ra8 Bf6 Ra7 Nd2 Ra8 Rc1 Ra7 Rc4 a1B+ Kb3 Bc3 Nb1 Be1 Kb2 Bf2 Rd4 Ra1 Ree4 Bf1 Re2 R7a5 Re3 Ba6 Rge5+
Rr1N3B/4p2R/1Q1p4/3B2KQ/2b1B3/pN1rn2b/r1b1P1Bb/b2Rk2n b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 g5 h4 gxf4 g4 b5 axb5 f5 Bd2 Qb6 Be3 Qf6 Bc1 Qg5 hxg5 fxg4 Rh2 f3 Rh4 Nc6 Rh1 Nb8 Kf2 Kf7 Kg3 Ke6 Kh4 Kf5 b4 Ke4 c4 h5 b6 a5 c5 d3 b5 d6 b7 g3 g6 a4 c6 g2 c7 f2 g7 d2 b6 Ke3 Ra2 Bf5 c8B Bc2 Rb2 Nf6 g8B Nc6 b8Q Nb4 b7 Nd3 Ba2 Nd5 Rh2 Bg7 Nf3 g1B Rh1 Bh2 Bg2 f1B Nd4 Kf2 Bf5 Ne3 Kg5 h4 Nc6 h3 Bfe4 Bc3 Qc7 Rhb8 Bad5 Bh8 Ra2 Ba1 Bb2 Ra5 Qc1 d1R Bh8 Ke1 Nd8 Nf2 Qb6 Raa8 Qcb2 Rd3 Nd2 Ra5 Nb3 Ra6 Rg1 Nh1 Qb5 a3 Qd4 Rc6 Qdb6 Rcc3 Qe8 Rd2 Qh5 Rcd3 Ne6 Bg3 Nd8 h2 Bgf3 Bge5 Rg4 Bh3 Rh4 Ng3 Bg2 h1B Bf1 Bf3 Bg2 Nh1 Rb2 Bh2 Ra2 Rc8 b8R Bfg4 Ra8 Rb8 Qg6 Bd7 Rh7 Bb5 Qh5 Bc4 Rb2 Bd1 Rb1 Ra2 Rb2 Be5 Rc2 Bh2 Rd2 Bc2 Rd1+
krBK4/Qp1n1B2/b2b2Q1/Qr2Q3/BRb3n1/6rN/1p2p2P/nNnR4 b - - 0 1 legal: proof: e4 c5 f4 a5 b4 axb4 d4 g5 fxg5 cxd4 Qh5 d3 Qf3 Qb6 Qd1 Qd8 g4 d5 g6 d4 g7 h6 g5 Ra6 g6 Ra8 Bg5 Qd5 exd5 hxg5 Kf2 Kd8 Kf3 Kc7 Ke4 f5+ Ke5 g4 a4 d2 c4 b3 c5 f4 c6 f3 a5 d3 a6 f2 a7 g3 Qe1 d1N Nc3 d2 Ra4 b2 Rh4 g2 Na2 Ne3 Nc1 d1N Nb3 Nc3 Nh3 g1R Rb4 Na2 Bb5 f1B Ba4 Ba6 Nd2 Nc2 Nb1 Nd7+ Ke6 Nh6 g8Q Rb8 a8Q Ng4 g7 Nc1 Qa7 Na1 Kf7 e5 Ke8 e4 Qf7 e3 g8B Bb5 Qg6 Rh5 Bf7 Rg3 Qc3 e2 Rd1 Bd6 Qe5 Ra8 Qad4 Kb8 Kd8 Ba6 Qb6 Ra7 c7+ Ka8 Qa5 Nb8 Qb6 Be6 c8B Nd7 Qf2 Bf8 d6 Bec4 Qe8 Rb5 Qe5 Nb8 d7 Bc5 Ke8 Bd6 d8Q Nd7 Qa5 Kb8 Kd8 Ra8 Rd4 Ka7 Qfe3 Rb8 Rd1+ Ka8 Qa7+
NN3b2/2r1R3/B3NQ2/k1pBPpN1/Rr3p2/2n2n2/bn1nQ1K1/B3r2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 c5 d4 Kc7 b4 Kb6 e4 a5 d5 f5 d6 h5 e5 h3 d7 h4 g5 c3 g6 c2 g7 h2 Ra2 h3 Bb2 c1N Qg4 a4 Nd2 a3 Ba1 Qe8 d8N Rh7 Ngf3 Ra4 Ne6 Nc6 Nfg5 Nf6 g8B Rc7 Qe2 Nd5 Bf7 Nc3 Nc4+ Kb7 b6 Ka6 b7 Nd3+ Kf3 Nb2 b8Q Nd4+ Kf2 Bb7 Qd8 Bd5 Qf6 Nf3 Nb6+ Qb5 Rg1 h1R Na8 h2 Kg2 Qc4 b5+ Ka5 b6 Rb4 b7 Qb3 b8N Qa4 Kf2 Bc4 Rg2 Rg1 Bg8 h1R Rh2 Bd5 Rh7 Bb3 Re7 Bd5 Bg2 Re1 Bf1 Rc1 Ng7 Ne1 Qd1 Bc6 Ba6 Nf3 Kg2 Bd5 Qe2 Rce1 Bf7 Nbd1 Bb2 Be6 Ra1 a2 Bg8 Bc4 Bd5 Bb3 Rc1 a1N N7e6 Bc4 Rc2 Nb3 Ba1 Nbd2 Ra2 Nb2 Ra3 Ba2 Rxa4+
2Q1r3/2Rk2Br/8/p1pb2b1/4r1p1/Pn2N1b1/rRbQNQ1Q/3nBN1K b - - 0 1 illegal: No possible last move
1bnn4/NqP1R1k1/2B5/qp1QQ3/3p4/n2n1R2/B1q1rpnB/QNB4K b - - 0 1 illegal: No possible last move
5R1B/N1q3qp/Q1r5/RNBrrn1k/B1r3rp/2prQbQ1/KP6/5B2 b - - 0 1 legal: proof: h4 b5 a4 bxa4 c4 g5 e3 gxh4 Qf3 d5 Qd1 dxc4 f4 e5 d4 Bc5 d5 Bd4 exd4 e4 Nh3 Nc6 Ng1 Ne5 fxe5 Ba6 Be2 Bb7 Bf1 Bc8 Kd2 a5 Kc2 f5 g4 Kf7 e6+ Kg6 d6 c5 d5 a3 g5 a2 d7 f4 d6 e3 e7 c3 Kb3 f3 Qe2 c4+ Ka3 c2 Qe1 f2 Bg2 f1Q e8Q+ Qf7 Qg3 a4 Ne2 Bb7 Bf1 Rc8 Nd4 e2 Nb5 e1R N1c3 Bf3 Qe3 Qc7 d8Q Ne7 d7 Kh5 g6 Nf5 g7 Rg8 Na7 Re2 Bd2 c1R Ncb5 c3 Be1 Rd1 Qf6 Rd5 d8B Red2 Qc6 R2d3 Qa6 Re8 g8B Ree5 Bf6 Qg7 Be6 Rg8 Bf2 Rc8 Kb4 a3 Kb3 Rg8 Bd7 Rc8 Rd1 a1R Bg1 Rc1 Ka2 Rc2 Ra1 Rg2 Qge1 Rg4 Qg3 Qb6 Rh2 Rcc4 Rf2 Qc7 Bc6 Qg6 Bh8 Qh6 Nd6 Qhg7 Ba4 Rc6 Kb3 a2 Ndb5 Be2 Rf4 Bf3 Bf2 Nd6 Rf8 Nf5 Qe2 Rgc4 Bc5 Rg4 Qe3 Rc4 Rc1 a1R Re1 Rad1 Ka2 R1d2 Ra1 R3d4 Kb3 R2d3 Ra3 Rg4 Ka2 Qh6 Bb3 Qg6 Ra5 Qgg7 Ba4
N3b3/4p2b/bKN3Q1/n3N3/1P1B1p2/p1Q3nB/Nnnk1B1b/R3nR1q b - - 0 1 legal: proof: h4 d5 a4 b5 e4 bxa4 d4 a5 h5 c5 h6 Ra7 Nf3 Rd7 Bg5 gxh6 Ne5 h5 Bc1 h4 Nc6 cxd4 Ne5 d3 Nf3 d4 Ng1 Rd6 Bd2 Rd5 Bc1 Rd7 g4 h5 f4 f5 g5 Rd5 exd5 Nc6 Nh3 Rh6 Ng1 Rd6 g6 Nb8 Ne2 Re6 Rg1 Re3 Rh1 Rg3 Ng1 Rg5 fxg5 Bg7 Qd2 Bh6 Qd1 Bf8 Kd2 Kd7 c4 Kd6 b4 Ke5 g7 Ke4 c5 a3 g6 h3 c6 h4 d6 a2 c7 h2 d7 a4 Na3 h3 Bb2 Nc6 Rb1 a1N Be2 Ba6 c8N Nc2 Rc1 Nf6 g8Q Ne1 g7 Ng4 Ra1 Ne3 Qc2 Na5 Nb5 a3 Nca7 Qa8 Qc3 N3c2 Nf3 f4 Rg1 h1B d8B h2 Bf1 Bg2 Bb6 h1N Qf7 Ng3 g8N Bg7 Ne5 Bh3 Qh5 Bf5 Nc7 Bh7 Bh3 Bf6 Bc5 Bh4 Rf1 Qb7 Nac6 Qa8 Kd1 Ke3 Nf6 Qh8 Qg6 Qa8 Na7 Qh1 Kc1 Ke2 Nac6 d2+ Kb1 d1B Ka2 d3 Na8 d2 Bf2 Ne4 Nd5 Bg3 Nf6 Bh2 Nd5 Nc4 Kb3 Na5+ Ka4 Ng3 Qb3 Nd4 Bc3 Bc2 Bb2 d1N Nc3+ Kd2 Na2 Bf5 Qf3 Ndc2 Bbd4 Bd7 Qb3 Be8 Qf3 Bb7 Kb5 Ba6+ Kb6 Nb2 Qc3+
1b1q1Rk1/1RP1p1N1/1Nrq3r/8/1qB2N2/p1bQK1bQ/pQb2N2/1q4B1 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 d4 bxa4 f5 cxd4 Bc4 Nh6 Be2 Nc6 Bf1 Ne5 f6 Nf5 gxf5 g4 Kd2 Nf7 Ke1 Ng5 hxg5 Qb6 Rh3 Qc7 Rh1 Qd8 Kd2 Kf7 b4 d5 c4 a5 b5 h5 c5 h4 b6 h3 c6 a3 g6+ Kg8 b7 g3 b8N d3 g7 g2 c7 a4 Nd7 d4 Nc3 a2 Nce2 a3 Nf4 h2 Ngh3 g1B Rb1 Ra6 Nb6 Rh6 Nf2 Be6 Qc2 Bb3 Qb2 Bc2 f7+ Kh7 g8N Bg7 f8Q e3+ Ke1 e2 Kd2 Rc6 f6 Qd6 f7 Qb4+ Qc3 Bf6 Qc8 Bh4 f8Q Bg3 Qff5+ Kg7 Bb2 e1B+ Kc1 Kh8 Nh6+ Kg7 Qb3 Bc3 Qfd5 Kh7 Qh3 Kh8 Nf5+ Rh6 Nc4 Rc6 Ng7 Kh7 Qdf5+ Kg8 Ba1 Qb7 Qb2 Qb4 Nd1 B1f2 Nb6 Bg1 Qd7 B1f2 Rg1 h1Q Rg2 Bg1 Rf2 Qd5 Rf3 Qdd6 Nf2 Bb3 Qc2 d2+ Kd1 Ba4 Ke2 d3+ Ke3 d1Q Qb2 d2 Be2 Bc2 Bc4+ Qd5 Qd6 Qf1 Qg6 d1Q Qd3 Qfe1+ Ne2 Qf1 Rf7 Qdd6 Nf4 Qd8 Qe2 Q1d6 Qd3 Qd1 Qc1 Be1 Bd4 Bc3 Rb3 Qf1 Qb2 Qb1 Nd7 Qa4 Rb7 Qab4 Nb6 Kh8 Ke4 Qbc5 Ng4 Bge1 Na8 Kg8 Kf3 Bgf2 Be3 Bg3 Bg1 Bef2 Ke2 Bfd4 Nf2 Qb4 Kf3 Ba7 Nb6 Bb8 Ke2 Bh2 Ke3 Bg3 Rf8+
q2n1k2/1p4pB/Q1R1NP2/b3R2N/3b2nB/Kb2B2p/N4Q2/q1N1qbq1 b - - 0 1 illegal: No proof kernel
Nk2b1K1/2N3nr/pp1p1Qb1/Rn1R2B1/3pB1P1/1q2n3/Q5rr/B3N1B1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 b4 e6 b5 a6 Ne2 Bd6 Ng1 Bc5 a4 Ba7 b6 Qe7 bxa7 Qa3 Bg5 Qxa4 Bc1 Qa2 Ke2 Kd8 Kd3 Kc7 Ke4 h5 Ke5 h3 f4 b6 c4 h2 g4 h4 f6 h3 c5 Qc4 f7 Rh7 f8B Rg7 c6 Ne7 Kf6 e5 f5 Qb5 Bd3 Qb3 Nc3 Rh7 Ra5 Nd5+ Kg6 Ne3 f6 Nf5 f7 Ng7 Qc2 d6 Be4 Be6 Qa2 Bd7 Nf3 Be8 Be7 Kc8 c7 Nc6 Rf1 h1B Bb2 h2 Nb5 Kb7 Re1 Rc8 a8N Bg2 Rf1 h1R Ne1 R1h2 Rf5 Bf1 Ba1 Bd3 Bg5 Bb1 Bc2 e4 Rd5 e3 Be4 e2 Be3 Bc2 Bg1 Na7 Kf6 Bd3 f8B Bb1 Be7 Rg2 Bf3 Bbg6 Be4 Rb8 Bd8 Kc8 Ke7 Rb7 Kf8 Rhh2 Nf3 e1N Bg5 Nc2 Ne1 Ne3 Kg8 Kd7 Bd8 Kc6 c8Q+ Rc7 Qd7+ Kb7 Bg5 Kb8 Qe6 Rf7 Nbc7 Nb5 Bh6 Rf3 Qf5 Rfh3 Bg5 Rh7 Qf6
3Q1b1q/R5k1/2Bb2rp/pQ1BNpRn/2NKR1B1/r3p3/4P1R1/n1q1r3 b - - 0 1 legal: proof: d4 c5 c4 cxd4 a4 b5 axb5 g5 f4 gxf4 g4 Nf6 Bd2 Ng8 Bc3 Bb7 h3 Bf3 g5 Bg4 hxg4 dxc3 Kf2 e5 b4 d5 b6 f6 c5 Kf7 g6+ Kg7 g5 h6 b7 d4 c6 f3 b5 a6 c7 d3 Ke3 f2 c8B d2 b6 c2 Na3 c1B Rh2 e4 Bg2 f1Q Nc4 Qe7 Bg4 f5 Nf3 Qh1 Nfe5 Qe8 Kd4 e3 Bc6 Bca3 Rg2 Nd7 b8Q Nc5 b7 Nf6 Qb1 Ra7 Qb5 Rg8 Qd8 Nh5 b8R Qc1 Ra8 Bb4 Ra3 d1R+ Rd3 Rb7 Ra7 Re1 Ra3 a5 Ra4 Kh8 g7+ Kh7 Qd7 Rc7 Qd8 Nb3+ Kd3 Na1 Kd4 Bbd6 Rb4 Rh8 g8B+ Kg7 Bgd5 Rg8 g6 Rb7 Ra4 Kh8 Qc5 Rb3 Qb5 Ra3 Rb4 Rg7 Ra4 Rf7 Rb4 Rf6 g7+ Kh7 Ra4 Rg6 g8R+ Qd7 Ra6 Qg7 Rb4 Qh8 Ra8 Rf6 Rg5 Rg6 Ra7+ Bfe7 Nb6 Ra2 Kd3 Kg7 Re4 Ra3+ Kd4 Bc7 Nf7 Bf8 Nc4 Bcd6 Nfe5+
n2R3q/1R1KB3/1brp1N1N/2P4r/n2Q1B1p/1p3Q1B/4p1q1/2Qrk1bB b - - 0 1 legal: proof: g4 f5 gxf5 c5 f4 b6 d4 cxd4 e4 Qc7 f6 Ba6 f5 Qxh2 e5 Kd8 b4 Bc4 b5 Bf7 e6 a6 exf7 axb5 Bd3 b4 Be2 Qg2 Bf1 Qh2 c4 Kc7 a4 Kc6 a5 Kc5 a6 e5 a7 h5 Ra6 g5 Qg4 d3 Qe4 b5 Qg4 b3 Ra3 Kb4 Qf3 b2 Nc3 b1Q Nh3 h4 Ne4 g4 Nhf2 g3 Kd2 g2 Ke3 g1B Bh3 d2 Rd3 d1R c5 Na6 Rd5 Be7 f8B Rc8 a8B Rh5 f7 Qa1 f6 Bd8 Be7 Bb6 f8Q Qg2 f7 Rc6 Qd8 Nc7 f8Q Nf6 Qh6 Qb2 Rd2 Nfd5+ Kd3 Qa1 Ng4 Nc3 Nef6 Na4 Ke4 Kc4 Rd5 b4 Bf4 Qc3 Bb7 Na8 Qg5 Qcb2 Kf5 e4 Nh6 e3 Rh2 Kc3 Ke5 Rc7 Kd6 Kc2 Qh8 Qd4 Bc6 Kd2 Rh1 Ke1 Rh2 Qg3 Rb2 e2 Ne4 Qc4 Qgg7 Re5 Qa3 Ba7 Qg4 Rh5 Qe3 Qh2 Qc1 Qc3 Qd8 Qh8 Nf6 Rc8 Rd3 Rc7 Bh1 Qg2 Qf3 Rc8 Rbd2 b3 Rd4 Qg4 Rb4 Qg2 Rb7 Bb6 Qg8 Qg5 Qgc4 Qg2 Rd5 Rc7 Qd4 Rc8 Rg5 Rc7 Rg8 Rc8 Rd8 Rc7 Bf8 Rc6+ Ke7 d6 Kd7 Be3 Be7 Bf2 Ke6 Bg1 Kd7
N4n2/q2b1Q2/p2prN2/2n3pR/pB1RrN2/2b1NbQ1/1P2B1q1/QK5k b - - 0 1 legal: proof: g4 c5 f4 e5 d4 cxd4 a4 b5 e4 h5 gxh5 f5 exf5 exf4 Qg4 bxa4 Qf3 Be7 Qd1 Bf8 Kd2 Ke7 h4 Kd6 c4 Ke5 Kc2 Ke4 f6 g5 f7 f3 c5 f2 h6 a6 h7 d6 c6 Ne7 h5 Ra7 h6 Qb6 c7 Nbc6 Rh5 Bd7 c8N Qc5+ Nc3+ Ke5 Nb6 d3+ Kb1 d2 Ncd5 Ke4 Ne3 Nb8 Be2 f1Q Na8 Bg7 f8N Qg2 Nh3 Bc3 Qg1 d1B Bd2 Rg8 h8Q Ng6 Nh7 Nf8 Qf6 Rg6 Qf7 Re6 Qe1 Rb7 Qg3 Rb4 Ra3 Qa7 Nf6+ Kd4 h7 Rc4 Bg4 Bf3 h8Q Kd3 Rb3 Ke2 Rb4 Rf4 Rd4 Rfe4 Nd1 Kf1 Qh6 Bc6 Qh8 Nbd7 Ne3+ Ke2 Qhh7 Nc5 Qf5 Bd7 Qd5 R6e5 Qa2 Re8 Qa1 R8e6 Nc4 Ba5 Bb4 Kf1 Nf4 Kg1 Nh3+ Kh1 Ne3 Ng6 Ba3 Bc3 Bb4 Bd1 Be2 Nf8 Bf1 Bg4 Be2 Bf3 Nf4+
K2b3q/5rQp/3NN2Q/pr1p1rB1/4QR2/R2RPpn1/1n6/2qRb1kB b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 Ke4 g5 f5 b6 d5+ Kb5 a5 c4 f4 g6 d3 c5 d2 g7 Ke3 c6 Kf2 c7 f3 c8Q Nd7 Kc6 Ra6 Kb7 Nh6 g8Q Ra8 b5 Bd6 Qcc2 Qe8 Qe4 Qf8 Ra3 Bc5 Nc3 Re8 Qg7 Nf5 Qdc2 d1Q Bg5 Bd6 Qc1 Re7 e3 Re5 Nge2 g1B Nd4 g2 Ne6 Be7 Qa1 Qe8 Qh6 Bd8 Ka8 Qc1 b7 Rf8 b8R Nc5 b6 Rf7 b7 Nd3 Nb5 Qh8 Nd6 Nb2 Rc8 Ng3 b8R Bh2 Rcc3 g1R Bg2 Ref5 Rb4 Rd1 Re1 Rd4 Rba4 Rb4 Rd1 Rb5 Bh1 Bg1 Rcb3 Bh2 Rbd3 Bg1 R1d2+ Kf1 Rc4 Bf2 Rd1+ Be1 Rcd4 Kg1 Rb4 Nc4 Qag7 Nb2 Qee5 Re7 Rf4 Ref7 Qe4
3q1nbQ/1P1p3R/1r1n3N/3BQ2K/b1nRrp1Q/N6q/3pNp1k/B5N1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 h4 g5 Na3 gxh4 Nb1 a5 b3 a4 b4 Bc5 Rh3 Bb6 Rh1 Ba5 bxa5 Qe7 Qd3 Qg5 Qd1 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 e4 f5+ Kh5 d3 c4 d2 g4 f3 b6 Kf4 c5 Kg3 g5 f4 a6 h3 g6 a3 g7 h2 e5 f2 c6 a2 c7 Ne7 g8N Ng6 e6 Nc6 a7 Nf8 e7 Nd4 e8Q Bb7 c8N Nb5 Bd3 Nd6 Ba6 Bc6 b7 Ba4 Na3 h6 Rb1 a1N Bb5 Nc2 Nb6 Ne3 Bc6 Nec4 Rb4 Rc8 Bf3 Rc6 Nd5 Rb6 a8Q Rh7 Bg2 Re7 Nc3 Re6 Bd5 Re4 Qe2 Kg2 Bb2 Kg3 Qe7 Kg2 Kg4 h5+ Kg5 h4 Kh5 h3 Ba1 Kg3 Nh6 Kg2 Nf3 Kg3 Qh4+ Kg2 Rhb1 h1B Ng1 Kh2 Qe3 Bg2 Qd4 Bf1 Qe5 Bd3 R1b3 Bb1 Qc8 Ba2 Nce2 Ne3 Bc4 Nh7 Ng4+ Kh1 Qhg5 h2 Kg6 Qe7 Qch8 Qd8 Bf7 Kg2 Rd4 h1Q Rbd3 Bd5 Qh6 Nec4 Rh3 Qh2 Qhg5 Qg3 Rh5 Qh3 Qh4 Be6 Rh6 Kh1 Kh5 Nf8 Rh7 Bd5 Nh6 Kh2 Bg6 Bg8 Bf7 Qf6 Be6 Qd8 Bd5
2q3Q1/1NN4N/r2p4/1P3p2/b1rbr1r1/QRRBnBpQ/6p1/k1n3KQ b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 axb5 e6 f5 h6 g4 f6 g5 exf5 gxf6 Bb4+ Bd2 Bf8 Bg5 hxg5 Kf2 Kf7 e4 Ke6 b4 Ke5 h4 a5 c4 g6 h5 d3 b6 Kd4 h6 d2 c5 a4 e5 g4 f7 g5 h7 a3 e6 a2 c6 Bc5 f8Q Ne7 b7 Rg8 c7 Ra6 Rh3 Nd5 e7 Nc6 b8Q Ne3 h8Q+ Ne5 Na3 Kc3 e8B Kb2 Bd3 Bd4 Nf3 g3+ Kg1 g2 Bh5 g4 Rc1 a1R Rc3 Rc1 Nb5 Ka1 Ng5 Rgg6 Qf1 d1R Nh7 Re1 Qa8 Bb7 c8N Bc6 Ncd6 Qc8 Nc7 Ba4 Nb7 d6 b5 Rc2 Rb3 Rc4 Qfg8 Rg7 Be8 Rg6 Bc6 Rg5 Bf3 Rg7 Bb1 Nd3 Qa7 Nc1 Bd3 Re2 Qe1 Re7 Qh4 Re4 Rg3 Rf2 Qh1 Rfc2 Ng5 Rd2 Q8h3 Re2 Nh7 Rf2 Bd1 Rff4 Rf3 g3 Qc5 Na2 Qa3 Rg4 Rf2 Rg6 Rc2 Rg5 Bf3 Rgg4 Qb4 Nc1 Rcc3 Rb6 Qc5 Ra6 Qa3+
5R2/2bppKQ1/N1R1B1Q1/2nr1bBn/1k1P2qR/3p1b2/Bb2rRp1/3N4 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 c4 Qd3 b5 axb5 axb4 Bb2 cxd3 Ba3 Ra7 Bc1 Ra8 Kd2 g5 Ke3 g3 Ke4 b3 f4 b2 h4 g4 c4 g2 b6 g3 h5 Bg7 h6 Ra3 h7 Qc7 f6 Ra5 f5 Qc5 f7+ Kd8 b7 Kc7 f8R Kb6 f6 Ka6 f7 Qb6 c5 Kb5 Kf5 Bh6 c6 Be3 Kg6 Bg5 Rh4 Ra3 Nf3 g1B Nc3+ Kb4 Ne5 b1B Bh3 g2 Be6 Bh6 c7 Na6 b8Q Bh2 Bg5 Ba2 Rc1 Nf6 Nd1 Bb7 c8B Bf3 Rc6 Nc5 Bb7 Nh5 Qe8 Bad5 Ba6 Ra2 Bc4 Re2 Ba2 Bc4 Rg8 Bcd5 f8R Bde4+ Kf7 Bf5 Rg6 Rg8 h8Q Qb7 Rf6 Bg3 Rc7 Qe4 Qg7 Qg4 Rc8 Bf4 Rc6 Bc1 Ra6 Bb2 Nc6+ Kb5 Nb8 Kb4 Rc6 Rh8 Bc1 Bf4 Be3 Bc7 Bh6 Bh7 Rf4 Bf5 Bg5 B3e4 Rf2 Rh6 Beb3 Rd6 Be6 Bd5 Kg8 Bde4 Qeg6 Rd5 Kf7 Bf3 Na6+
3K1bbn/3pNq1Q/1N4q1/4R1Q1/1B1BpN2/1kqQ3P/b1pRr2p/n2Q4 b - - 0 1 illegal: No proof kernel
bQ1rR3/5b2/1BNknKbP/4nprN/3B4/1B2pr1p/RB2pn2/1R3Q2 b - - 0 1 illegal: No proof kernel
1n2b3/pp2nNB1/5r1Q/1NR5/3R1QpR/1br1n2k/pP4R1/3BKQrb b - - 0 1 illegal: No possible last move, all moves rejected
8/K2p1nN1/2bQ2p1/p1B2B1q/Bb1P4/1R1p1nn1/nQb1R1kr/N3R2R b - - 0 1 legal: proof: f4 b5 g4 c5 a4 e5 axb5 exf4 Nh3 h5 Ng1 hxg4 c3 a5 d3 Ra6 Nf3 Rd6 Ng1 Rd4 cxd4 c4 Qc2 cxd3 Qb3 Qc7 Qd1 Qd8 Kd2 Ke7 Kc3 Kd6 Kc4 f5 b4 f3 e4 g3 h4 g6 h5 f4 b6 f2 Kb5 g2 b7 f3 e5+ Kd5 h6 Ke4 e6 Bg7 e7 Nf6 e8B Bf8 h7 Be7 Bf7 Ng4 Qd2 Bd6 Ba3 Rf8 h8R Nh2 Bb3 Nc6 Ka6 Qg5 b5 Qh5 b6 Bb4 Qb2 Ng4 Ba4 Nge5 Ne2 g1N Nf4 Nf7 Bh3 f1B Ne6 f2 Ng7 Kf3 Bf5 Kg2 Nd2 Nf3 Re1 Be2 Nb3 f1N Na1 Ng3 Rh7 Rh8 Rh6 Bc3 Bc5 Nb4+ Ka7 Na2 b8Q Bb7 Qd6 Bc6 b7 Bb4 b8R Rh7 Qa3 Bd1 Qb2+ Bc2 Rb7 Qg5 R6h4 Rh6 Rhe4 Rh2 Rb5 Qh5 Re7 Bd2 Rb3 Bb4 R7e2+
Q5Q1/pp1n1N1B/1R1R1N2/Knr1n1kp/N1BB3p/3P4/1bB2q1b/2bn4 b - - 0 1 illegal: No possible last move
R2qN2R/1Rq2B1q/pP1Q3N/Q2nr2B/Q1r3R1/1b3nK1/1p3pp1/kq6 b - - 0 1 illegal: No possible last move, all moves rejected
3b1r2/K1n1Q1N1/1B2Q2Q/1p2NP1R/nnpN2R1/2r1bp2/2bp4/N2B1nk1 b - - 0 1 illegal: No proof kernel
k6b/2N1Q1pn/r1p1P3/1N1B2p1/1BKn1p1b/2N3b1/RQ2r1n1/1bQR1Q2 b - - 0 1 illegal: Other
3Q2R1/N2pN1pr/q2RpR2/1k1P1b1q/1r1b3p/2R1b1BB/rr6/Q1N1K3 b - - 0 1 legal: proof: g4 a5 h4 b5 f4 f5 c4 b4 e4 fxe4 h5 Ra6 f5 Rh6 b3 Nf6 g5 Rxh5 gxf6 Rh2 Bd3 Nc6 Be2 Nd4 Bf1 Nb5 cxb5 a4 Bh3 axb3 Bg2 Rh4 Bf1 Rh2 d4 h5 a4 c5 d5 h4 a5 b2 b6 c4 a6 e6 b7 b3 b8N e3 a7 e2 a8R c3 f7+ Ke7 f6+ Kd6 Bd2 Kc5 R1a7 c2 Bf4 c1B Bg3 Be3 Bh3 Qe8 Nc3 b1R Nb5 b2 Nc6 Ba6 Ne7 Rh7 Rb7 Ra1 Rb6 b1R Na7 Ra2 Rd6 Rb4 Qa1 Bd3 Rd8 Bf5 Ra8 Rb3 Rc8+ Kb4 Rc3 Rf2 Rh2 Rf4 Rf2 Rbb2 Nf3 Qc8 Nd4 Qa6 Nb3 Ka4 Nc1 Rfb4 Ng6 Be7 f8R Bd8 f7 Bdb6 Rf3 Bbd4 Rg8 Ka5 f8Q Ka4 Nc6 Kb5 Nge7 Bd3 Rf6 Bf5 Qd8 Bf4 Re3 Bh6 Kf2 e1Q+ Kf3 Qg1 Rc3 Bd2 Ke2 B2e3+ Rc2 Qg2+ Ke1 Qf3 Rc3 Qh5 Na7+
8/Qpr1NK2/5pP1/p1R2bqp/1Q1B1NQq/r3q1b1/B4Q1k/RN3bq1 b - - 0 1 illegal: No proof kernel
R5n1/3r4/1nQ1KQp1/P2RN1pN/Rrq2b1b/1B3p1p/4np2/2RQk1B1 b - - 0 1 illegal: Other
3nQR2/1p6/1BBN4/3bb1NK/2PB1r2/1Nrknp1p/Rq2pn1p/4B2Q b - - 0 1 legal: proof: f4 d5 h4 c5 e4 g5 b3 gxh4 Bc4 e5 Bf1 c4 Qe2 cxb3 Qc4 a5 Qb4 axb4 exd5 e4 Ne2 Qc7 Ng1 Qe5 fxe5 Kd8 Ba6 Ke7 Bf1 Ke8 Kf2 Kd7 d4 f5 c4 h5 a4 f4 g4 e3+ Kf3 h3 e6+ Kd6 a5 e2 e7 b2 e8N+ Kd7 a6 h4 a7 h2 g5 b3 Kg4 h3 g6 Bb4 g7 Bd2 d6 Kc6+ d7 Bb4 d5+ Kc5 d6 Kd4 Bd2 Nc6 Bg2 Ba3 Be1 Nh6+ Kh5 Nd8 g8Q Kd3 Nd2 b1N Bc6 b2 Ra2 Nc3 Ngf3 b1Q Ng5 Qb2 Nb3 Nd5 Rf1 Ne3 Qf7 Bc5 Qd5+ Bd4 Qh1 Be5 Rf3 Rf8 Rf2 Rb8 a8Q Nhg4 Rf3 Nf2 Qa4 Ne6 d8B Ra8 Bf6 Nd8 d7 Ra7 Qb5 Ra3 Nd6 Rf7 Nd2 Rc3 Nb3 Ne6 d8B Rf8 Rg3 f3 Bb6 Nd8 Rg4 Be6 Rf4 Bd5 Bg7 Re8 Rf8 Re6 Bh8 Rf6 Qa4 Rf4 Qa8 Ne6 Qe8 Nd8 Nde4 Bc7 Bhd4 Be5 Nd6
3nr1N1/Qp2bb1p/3n2N1/Q1K1pkR1/3pNB2/2P4Q/3Q1RpB/1qn2r2 b - - 0 1 legal: proof: d4 c5 e4 d5 b4 cxd4 exd5 a5 Qg4 axb4 Qh5 Qd6 Qd1 Qd8 h4 f5 g4 g6 h5 Bg7 Bh3 Bh6 hxg6 Bg7 g5 Bf8 Bg4 fxg4 Ke2 Kd7 Kd3 e6 Kc4 g3 f4 b3 a4 b2 d6 g2 c3 Bh6 a5 Nf6 a6 Ng8 g7 Nc6 f5 Rb8 g6 Ne5+ Kc5 Qe8 f6 Ra8 a7 Ne7 g8Q Nf7 g7 Qd8 Qd2 Nc6 Nf3 Nb4 Nh4 Nc2 Ra2 Ne3 Ng6 Nc4 Rh4 Bg5 Rg4 Qe8 Qf8 Nd8 f7 Be7 g8N e5 Qfh6 Ke6 f8B Bd7 Qh3 Kf5 Bh6 Be6 Bf4 Bf7 Bh2 Rb8 a8Q Qd7 Nf6 Rf8 Qa7 Qa4 Ng8 Qb3 Na3 b1N Nb5 Nba3 Rb2 Nc2 Ra2 Nb4 Rb2 Bg5 d7 Na2 Rc2 Qb1 Nd6+ Ke6 Ne4 Nd6 Rb2 Kf5 Rc2 Be7 Rb2 Nc6 d8Q Re8 Qda5 Nd8 Qe2 Ra8 Bcf4 Nc1 Qd1 Rb8 Rf2 Ra8 Qb8 Ra6 Qa7 Rb6 Qe1 Rb2 Qd1 Rd2 Qc2 Rd1 Qd2 Rf1 Rg5+
1K1n1R2/Rp4p1/1rQnQNbr/1qN4R/qP3Rp1/4B3/2pp4/1kb2NB1 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 hxg4 Qf3 a4 Qb3 axb3 c4 d5 cxd5 e6 d6 Kf7 d7 Ke7 d4 Qe8 d5 Kf6 d6 Kf7 Bc4 Qd8 Bd5 exd5 Kd2 Kf6 Ke3 Ke5 a4 c5 h4 b2 f4+ Kf6 a5 c4 Kd4 c3 Kc5 c2 h5 d4 h6 d3 a6 Ra7 h7 Ra8 a7 Qe7 Kb6 Nh6 Kc7 Qe5 d8B+ Qe7+ d7 Nf7 Nf3 Ne5 Be3 d2 Rh5 Nec6 Nh2 Ne5 Nf1 Nc4 Nc3 b1Q Nd5+ Kf7 f6 Ke6 f7 Qa2 f5+ Ke5 Bg1 Qe8 Nf6 Bc5 f8R Nd6 Be7 Qb3 d8N Qb5 Ne6 Bd4 Nc5 Nc6 Ra3 Q3a4 Ra2 Rb8 a8Q Bb2 Qa6 Nd8 Qc6 Ra8 Ra3 Ra6 Kb8 Bc1 Be3 Rg8 h8Q Rb6 Qh6 Rh8 Qg6 Rh6 Rf7 Qb3 Ra7 Q3a4 Rf8 Bd7 Bg1 Be8 Qf7 Kf4 Qe6 Bg6 Rf7 Ne4 Bd6+ Kf3 Bf4 Ke2 Bfe3 Kd1 Rd7 Qa3 Rd4 Nd6 Rf4 Qaa5 Nd5 Qaa4 f6 Ba3 f7 Kc1 f8R Kb1 Nf6 Bb2 Qe5 Bc1 Qe6
3qR1qN/1N1n3Q/1k4pB/p1P1Q1p1/2p2b1b/r1R2B2/3bp3/1r1BN1NK b - - 0 1 illegal: No possible last move, all moves rejected
n6N/B2rRN2/pQ1NK1RQ/2R2P1p/qq5B/Rn2k1b1/1b3ppp/3b4 b - - 0 1 illegal: No proof kernel
2Q3nn/RpB2BqB/2B2P2/1q1prrpR/1N2k3/1pK5/6pN/Qb1Nr3 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 h5 f4 hxg4 Na3 e5 Nb1 e4 Bb5 Bd6 Bf1 Be5 fxe5 Rh7 Qe2 Rh3 Qd1 Rh8 Kd2 Kf7 h4 d5 c4 g5 a4 g3 a5 g2 c5 d3 e6+ Kf6 e7 Ke5 e8B b3 a6 e3+ Kc3 e2 f6 e1R h5 d2 c6 Kf4 c7 Ke4 a7 Kf5 h6 Qe7 h7 Qe4 Bfb5 Nd7 Bc6 Nb8 Bf7 Nd7 Nf3 Nf8 Nh2 Bd7 c8B Qe7 Ba3 Rf1 Bd6 Ng6 Bc7 Ke4 Ra5 Rb8 a8N Bf5 Ra7 Qf8 Qc1 d1Q Qb2 Qg7 Qa1 Qe2 B8d7 Bh3 Bg4 Qb5 Bf5+ Ke3 Bc2 Re8 Bd3 Bf5 Bc2 Nh6 Be4 Rhf8 h8Q Re5 Bc2 Rb8 Qc8 Nh8 Be4 Ng8 Bd3 Bh3 Bh7 Ref5 Bg3 Re1 Nc7 Ke4 Na6 Bg4 Bc7 Be2 Nb4 Bd3 Nf1 Ra8 Rh5 Bc2 Nh2 Rb8 Na3 Bb1 Nc4 Ra8 Ne3 Rb8 Qd7 Re8 Nd1 Re5 Qc8
1Nn2R2/N1pp2b1/4pp2/Rrb1p3/3q2nk/N1Q2Qb1/4BPBb/5KRR b - - 0 1 illegal: No proof kernel
1nK4n/1p1Pk3/1Q2Q2R/1pp4N/8/RNbB2nn/p1B2prB/RBr1q3 b - - 0 1 illegal: No proof kernel
q3B2Q/4NN1Q/n2p3q/1Rppr1nP/6p1/BnRK4/kN1p2rN/2r3R1 b - - 0 1 illegal: No proof kernel
6k1/1p6/1npr2R1/p2QNnn1/pRQ3qB/n1rpPR2/2N3B1/2Q1QK1n b - - 0 1 illegal: Other
K2Q1r2/Nn2RNn1/B1q3Qb/R2Q1RB1/2b2nQ1/r1P1br2/1kn5/n1q4q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 h5 Kd5 a5 e4 a4 b4 f3 g4 d3 b6 h3 b5 h4 b7 f2 b6 d2 Rh2 a3 Rh1 a2 Nc3 h2 Nf3 h3 Bb5 f1R Bc4 Ne7+ Kc5 d5 Ne5 d4 Ne2 d3 Qe1 d1N Qd2 Ra3 Qa5 d2 Nc3 Nb2 Bb5 d1N Bd7 Qe8 Bf4 Nf5+ Kd5 Ng7 Ng6 Rf3 Bh6 Nc6 b8Q Nd3 b7 Nd8 Re1 h1Q Nb5 h2 Na7 Bc5 Qd2 Be3 Bb5 Rf8 Ne5 Be6+ Kd6 Qg1 Kc7 h1Q Ba6 Bc4 g5+ Ke6 g6 f5 Qa5 f4 Bg5 Qa4 Qa8 Qc6+ Kb8 Kd6 Qc7+ Kc5 Nf7 Kd4 e5 Kc3 e6 Kb2 e7 Qf1 Re2 Qe1 e8Q Qd2 Kc8 Qc1 b8R+ Nb7 Re1 Bd4 Re5 Ne3 c3 Nc2 Rf5 Be3 Bd8 Qcg1 Re1 a1B Bg5 Qf1 Re2 Qc1 Qd8 Ka2 Ra5 Bb2 Qe8 Na1 Rf2 Nh5 g7 Kb3 g8Q Ng7 Rf1 Rh3 Qh8 f3 Rf5 Qd2 Nd8 Bb6 Qg6 f2 Bh4 Qc5 Rd1 f1N Qg4 Na5 Qh6 Rf3 Qhg6 Bc1 Rb7 Kb2 Kb8 Ne3 Re1 Nec2 Ree5 Qf4 Qcd6 Qg5 Rbe7 Qh6 Qac6 Nb7 Ka8 Qg5 Qcc7 Qc6 Ra5 Qd2 Qd5 Qdd1 Rh5 Bh6 Rf5 Qc1 Bg5 Be3 Qb8 Nf4 Nf7 Rg8 Qc8 Rf8 Qcd8
r7/3n2q1/kn1Q2r1/Rq1b1R1R/1BNNnqPr/4bRNn/4b2n/1Q3B1K b - - 0 1 illegal: No possible last move, all moves rejected
R3k1rn/qb2N1R1/2b2P1b/1r3N1R/4q2R/Bb3Bqn/rb5Q/Q1Q1nK2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 g4 d5 c5 h3 f5 h4 b6 a4 f6 a3 c6 e3 g5 h2 c7 h3 g6 e2 b5 e4 b7 d3 g7 a2 b6 d4 Kf2 e1N Nd2 e3+ Kg3 e2 Kf2 Nd7 b8R Ne5 b7 Ng6 Ndf3 d2 Ba3 d3 Be7 Nh6 g8Q Nf4 Rb1 a1B Bg2 Bb2 Qc4 Rg8 Qcc1 Nf7 Ne5 Nh8 Ba3 Bh6 Ngf3 Qd7 Nc4 Qa4 Nb6 Qa7 Rg1 h1B Nh4 h2 Bf3 Bg2 Ra1 h1Q Nf5 Qh3 Ra2 Bh1 Rg7 Qg3+ Ke3 Bg2 Qa1 Bh1 Qdc1 d1B Kd2 Bb3 Ke3 Qh3 Kf2 d2 Kg1 d1R Kf2 Bc3 Rc2 Be5 Rc4 Rd5 Ra4 Rb5 Kg1 Nfg2 Rh4 Bb2 Rh5 Qg3 Rh4 Qa5 Rh5 Ra7 Ra8 Qa6 b8Q Qb7 Bc5 Ra2 Ba3 Qe4 Ra4 Qb7 Rah4 Qa7 Qb7 Bd7 Qd5 Bc6 Qd6 Qg6 Qh2 Nf4+ Kf2 Bb7 Bg4 Bhc6 Bf3 Qh7 Kg1 Nc2 Kf2 Nh3+ Kg2 e1Q Nc8 Qg3+ Kf1 Nf7 Nce7 Ne1 c8R+ Kd7 Re8 Nh8 Ra8 Qhg6 Nc8+ Ke8 Rh7 Q6g4 Rg7 Qe4 Nce7+
3b3N/q2rr2Q/2rN1r2/R3QbrR/1NrN1P1K/1n2r3/n3b3/BkRB3n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 Kf2 Kg6 g4 a5 c4 e5 b4 d5 g5 Kf5 b6 h5 b5 d3 b7 d4 c5 e3+ Kg2 Ke4 c6 d2 c7 a4 g6 d3 b6 a3 g7 e2 Qe1 d1B Kh2 h3 Kg3 d2 Rh2 Kd3 Rh1 Kc2 Bg2 h2 Qf2 e1R Bc6 a2 Bg2 e4 Qe2 e3 Qb5 e2 Bd5 h4+ Kf2 h3 Kg3 Qe7 Qa6 Rh6 Nf3 Nd7 b8Q Nc5 b7 Nf6 g8R Nb3 Bc4 Nd5 Qa5 Rf6 Kh4 Nb4 Bd5 Raa6 Rh8 Qg7 Ng5 Be7 Qa7 Bd8 b8N Bf5 c8N Rac6 Rg1 h1R Bf3 h2 Na6 Qe7 Rf1 Rg1 Bb2 h1N Nf7 Rg5 Rh5 Qc5 Qb7 Qa7 Bd4 Kc1 Nc3+ Kb2 Nh8 Kc2 Rb1 a1R Qh7 Ra4 Ra1 Kb2 Ra3 Na2 Nb5+ Kb1 Ba1 Rac4 Rg1 Bdc2 Ra4 d1R Nb4 Rd7 Nd4 Bcd3 Qc7 Rec1 Rf1 e1R Ra5 Ree7 Qe5 Re1 Rg1 Bf1 Nd6 B1d3 Rg2 Re3 Rc2 Bf1 Bd1 Be2 Rc1+
2R1b2R/bq1nR1n1/1k1rRn2/rqn3B1/rb2nn2/1N3K1Q/4NP1Q/3BQ3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 d5 g4 Kd7 c4 Kc7 b4 e5 g5 a5 c5 h5 g6 d3+ Ke3 a4 g7 h3 c6 d2 Qe1 d1N+ Ke2 a3 Bd2 a2 Be3 h2 Qc3 d4 Bg5 d3+ Kd2 e3+ Ke1 d2+ Ke2 h4 Kf3 h3 Qd3 e2 Bh6 e1B Qd6+ Kb6 Na3 e4+ Ke2 e3 Rb1 a1N Kf3 e2 Rb2 Nb3 Qe6 Nc3 Qe4 d1R c7 Nc5 Nc2 Nbd7 Nd4 Ra5 Bg5 Ngf6 g8R Qe8 Nb3 Rd6 Rg7 Rh4 Re7 Rg4 Qe5 N3e4 Ra2 Bb7 c8R Bc6 Ra1 Bd2 Re1 Be3 Re6 Ng3+ Qe4 Ngh5 Re7 Ng7 Bg2 Kb7 b6 Ka6 b7 Kb6 b5 Rh4 Qd5 Rha4 Qe4 Bd4 Rd1 Be3 Rd5 Bd4 Rde5 Be3 R5e6 e1N+ Kg3 Bd4 Bf3 Ng2 Bd1 Nf4 Ne2 Be3 Kf3 Bd4 Rg1 h1N Rg3 h2 Rh3 Ng3 b8Q+ Nb7 Qa8 Nbc5 Rh8 Be3 Qd5 Nge4 Qf5 Bd4 Qh3 h1Q+ Qg2 Qf1 Qh2 Qd8 Qh3 Qc7 Qb8+ Qb7 Qa8 Rd5 Qb8 Be3 Qe5 Rd6 Qc3 Nb8 Qe1 Be8 Rg8 Nbd7 Rh8 Ka7 b6+ Ka6 Ng1 Qb5 Ne2 Q7c6 b7 Kb6 b8Q+ Qb7 Nbc1 Rc6 Qh2 Ncd3 Qc7+ Ka7 Nb3 Rca6 Rf7 Bb4 Rfe7 Rd6 Qc2 Bb6 Qcc3 N3c5 Ke3 Ka6 Qd3 Ba7 Qdc3 Kb6 Qd3 Nd2 Qf5 Nde4 Kf3 Ng6 Qg4 Nf4 Qgh3
QR1r1bN1/3bNrB1/b2N1bN1/KB2r1q1/2RQ4/3bB1P1/n1q3qb/1k4n1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kf6 b4 Kf5 c4 e5 b6 d5 b7 a5 c5 h5 c6 h3 c7 a4 b5 h2 b6 h4 Na3 d3 Kc3 d4+ Kc4 d2 Kb5 d3 Qh5+ Qg5 Nb1 d1B Ra2 e3 Nc3 e2 Nb1 Ke4 f5 e1R f6 d2 f7 h3 Bc4 a3 Be2 Na6 b8N Nh6 b7 Ng4 Nd7 Bc2 b8B d1Q Ka5 Bd3 Nb6 Rh7 Rd2 a2 Na3 a1B Nd5 Nb4+ Kb6 Na2 Nf4 Qc2 Ng6 Nf2 Nc4 Bd7 c8N Kd4 Bd6 Kc3 Qg4 e4 Nce7 e3 Ng8 Rd8 N6e7 Rg7 Bf1 e2 Nf3 Bb2 Rg1 h1B Nh4 h2 Nhg6 Nh3 Be5+ Kb3 Nd6 Ba1 Bf4 Bf6 Be3 Rh7 Rd1 Kc3 Bcd2+ Kb2 g3 Bb7 Qf4 h1Q Rc1 Qg2 Qf2 Bba6 Bc3+ Ka3 Rh1 Ng1 Be5 Kb3 Ka5 Rg7 Rh4 Ka3 Rd4 Kb2 Rd1 Rh7 Rd2 Kb1 Rc4 Bh6 f8Q Rf7 Qe8 Bf8 Qf4 Rd1 Qg4 e1B Qd4 Bf2 Re2 Re1 Rd2 Bdc8 Qc6 Bd7 Qa8 Nh3 Re2 Bg1 Rf2 Bh2 Rf5 Bh8 Bg7 Ng1 Rb5+ Qb2 Be5 Bf6 Rb8 Qc2 Bg2 Qb7 Bc6 Re2 Bb5 Qg2 B5f4 Qe5 Bh6 Qg5 Bg7 Re1 Bc1 Re5 Be3
rBQ4q/2NK2b1/1qrB2B1/1B6/2n1bPr1/1R1N1QR1/k4b1R/2qr1rnr b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 g4 Kd5 b4 e5 c3 a5 b6 h5 g5 e3+ Kd3 e4+ Kc2 d3+ Kb3 d2 Ka4 e2 Kb5 e1B b7 e3 g6 e2 g7 h3 Ra3 a4 Rh2 h4 Ra2 a3 Rf2 h2 Bh3 h1Q Rf1 Rh6 Rc2 a2 Bg4 a1Q Bb2 h3 Na3 h2 Bf5 Rc6 Qc1 d1R Bg6 Bf2 Nh3 e1R Rg1 Nh6 g8B+ Nf7 Rg3 Bg7 Qe3 Rg1 B8h7 Ng5 Qf3+ Ne4 Bc1 Rdf1 c4+ Kd4 c5 d5 Rb2 Nd7 b8B Nb6 Be8 Qc7 Bhg6 Bf5 Be3+ Kc3 Rd2 Re6 c6 Kb3 Bc5+ Qc3 Bf8 d4 Bd6 d3 Bd7 Qd8 c7 Ng5 c8Q Nc4 Kc6 Qc1 b5 Qf6 b6 Be4+ Kc7 Qfb2 b7 Ka2 Re2 d2 Nb5 d1R Bc6 Rg2 Kd7 Qg1 Nc7 h1R Bb5 Qh2 Qg4 Nf3 Qh5 Ng1 Qf3 Bb6 Nf2 Qh8 Nd3 Bf2 Rh3 Rg4 Rg3 Be3 Rh2 Bf2 Ba7 Qd4 b8R Qb6 Rb7 Rf6 Bb8 Re6 Bf8 Rc6 Bd6 Qa5 Ba6 Qc5 Rb3 Qb6 Bb5
Qb2q2N/8/2B1qQ1q/1nNnqqQ1/KP2NQ2/3R4/1r2rBk1/bbR2nq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb3 a5 g5 d3 g6 d2 g7 a4+ Ka3 d4 c5 d3 c6 f3 b6 Kf4 c7 Kg3 b7 h3 e5 f4 e6 h2 e7 h4 e8N f2 Nc3 h3 Na2 f3 Qe1 d1Q Nd6 d2 Qe7 Qe8 Qd8 Nc6 b8Q Qde1 Bb2 d1Q Be2 f1Q Bd4 f2 Nc3 Bf5 c8Q Nge7 Ncb5 Kg2 Qe6 Na7 Bc4 Qde2 Nc3 Bb1 Nf7 Qe5 Qa5 Nd5 Ba6 Bd6 Bb5 Rh5 Bc6 Nb5+ Kb2 a3+ Kb3 a2 g8Q+ Rg5 Qf6 Qd3 Bc5 f1N Bf2 Qdf5 Na4 Q8e6 Qbc7 Re8 Nh8 Rg6 Qcf7 Bb8 Ne2 Rg4 Ng3 Rc4 Q6g7 Rc2 Nc5 Rb2+ Ka4 Re7 Qc8 Q1e2 Qca6 Qeh5 Qff6 Qe8 Qgg5 Qee4 Qa7 Q6c8 Qfg7 Bd3 Be3 Nd2 Rhd1 Nf1 Q7c7 h1Q Qf8 h2 Qcf4 Qg1 Ng6 h1Q Nh8 Qh6 Rac1 a1B Bf2 Bb1 Qa8 Qd4 Rd2 Re2 Rd3 Qce6 Qff6 Qde5 Nge4+
1NR1R3/kr2b3/1qr1QnP1/rq1nrb1N/7K/1qn1r2Q/1R3N2/2N1BBr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 b4 Kd7 c4 Kc7 g4 Kb6 e4 a5 c5+ Ka7 c6 f5 e5 h5 g5 d3 c7 h3 e6 d2 e7 h2 e8N f3 Kg3 a4 g6 f2 Qe1 d1N Ra3 h4+ Kh3 d4 Rf3 d3 Qe6 d2 Qf6 a3 Bd3 f1R Bc4 f4+ Qf5 a2 Bb3 a1R Bc4 Nc3 Na3 d1Q Rf2 f3 Qe6 Nd7 Ne2 Be7 Nb1 Ra5 Bd2 Qb3 Ng7 Rh7 Be1 Rg1 Nd2 Nb6 Nc1 Nf6 Nh5 Nbd5 Ne4 Rg7 Ra2 f2 Rb2 f1R Bd3 Rf5 Bf1 Re5 Nf2 Bd7 c8Q Qb6 Qh8 Rc8 Qh7 Rc6 Qh6 Rgg5 Rg1 Re4 Rg4 Re2 Rc4 Rge5 Qe3 Rh7 Qg3 h1R+ Qh2 Rd6 Rc8 Rg1 Qg2 R2e3+ Qg3 Qb8 Qf3 Rc6 b6+ Ka8 b7+ Ka7 b5 Rf7 Qg4 Bf5 Re8 Qd8 b8R Qb6 Rbc8 Rg7 Kh2 h3 Qfg3 Bb1 Qe6 Bf5 Qg4 Bd6 Qg2 Rb7 Qf3 Be7 Qg2 Re2 Kg3 h2 Kh4 h1Q+ Qh2 R2e3 Qh3 Qc7 Ncd3 Qf3 Nc1 Qe2 b6+ Ka6 Qh1 Ra7 b7 Qeb5 Nf4 Qb6 b8N+ Kb7 Qg2 Ka8 Nh5 Rb7 Qg3 Ka7 Qh3
RR2Kb1N/Q2n1P2/2Qbb2B/1q1QNrb1/4B1b1/nk1q1b2/1NN2nr1/7q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 a5 b4 d5 g4 h5 b6 e3+ Kd3 e2 b5 e1N+ Kd2 d3 Kc3 d2 Kd4 a4 Kc5 d4 g5 a3 b7 d3 g6 h3 g7 h4 b6 h2 Kb5 h3 c5 Kd5 f5 e5 c6 e4 f6 e3 f7 e2 c7 a2 Ba3 Nc2 Be7 e1B Na3 Nh6 g8N Bh4 Nf3 Ng4 Bg5 Be6 c8Q Rh5 Ne1 Nf2 Bh6 Qg5 Nc4 Nd7 b8N Bd6 Rb1 a1B b7 Bg7 Nc6 Ra2 b8Q Bgf8 N6e5 Kd4 Kc6 Kc3 Bg2 Na3 Rg1 h1B Nc2 h2 Be4 Bf3 Nb2 h1Q Qa7 Kb3 Ne7 Bfg4 Qf3 d1B N7g6 Be2 Qf5 d2 Nh8 d1Q Ra1 Qd3 Rgb1 Bef3 Qca6 Bb4 Kc7 Bbc5 Qc6 Bcd6+ Kc8 Nf6+ Kd8 Nd7+ Qf6 Qf5 Ke8 Qb5 Qd8 Qh7 Rd1 Rf5 Qda8 Bg5 Rd5 Qc4 Rb5+ Qb4 Rb8 Qb5 Qd4 Qg6 Qaa7 Qh7 Bg7 Q7h3 Bh6 Q3f1 Qdc5 Qd3 Q5d5+ Nc4 Qa4+ Kc3 Nb4 Nd1 Qaa8 Kb3 Na4 Rc2 Nb2 Rg2 Nc2 Nf2 Qab7 Qh2 Qbb6 Qh3 Raa8 Qh1 Qdc5 Na3 Qa7 Qg1 Qd4 Qh1 Qdd5+
R2B1b2/qNn1Pb1b/BQrn4/3qqnk1/5B2/bb1Q3K/3N2Qb/1Br2R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kf6 h4 g5 e4 a5 b4 d5 c4 g3 h5 d3 h6 d2 h7 d4 c5 g4 c6 a4 b6 a3 b7 d3 c7 a2 e5+ Kg5 e6 f5 e7 Qd6 b5 Nh6 b6 Be6 c8B Na6 b8Q Nc7 b7 Qe5 Nc3 Ra6 Nd5 Bf7 Nb4 Rc6 Qc2 d1Q Qa4 d2 Rb1 a1B Bd3 Bb2 Bc2 Ba3 Rh3 f3+ Kh1 f2 Kg2 f1N Qb5 f4 Na6 Nf5 Qd3 Nd6 Nc5 Rg8 h8Q f3+ Kh1 f2 Kg2 Rg7 Qg8 Rg6 Rh8 Ne3+ Kh1 Nef5 Kg2 Rg7 Qa7 Rg6 b8B Rg7 Nb7 f1B+ Kh1 Be2 Kg2 Rg6 Qb6 Rg7 Qdb5 Bd3 Ra1 Rg6 Bb1 Rc4 Bb2 Rc1 Bd4 Qb3 Bc3 d1B Ba5 Qbe6 Qc4 Bb3 Qe4 Q6d5 Nf3+ Kf6 Nd2 Kg5 Rh1 Bdc2 Rf1 Bd3 Kg1 g2 Kf2 g1B+ Kg2 g3 Kh3 Bdc2 Qd3 g2 Qg7 Bh2 Ra2 g1Q Qg8 Kh5 Qg7 Rh6 Qg2 Na8 Bc7 Rg6 Bd8 Nc7 Bb4 Qf2 Bc5 Qg1 Bf2 Re6 Bg3 Kg5 Bd7 Qgd4 Bb5 Qa4 Bc4 Qa7 Ba6 Nh4 Qc4 Bh7 Qd3 Nhf5 Rc2 Na8 Rc8 Nc7 Ra8 Ne4 Bc4 Rc6 Ba6 Ned6 Bf4+
2brnBn1/Q1B2q1P/N2N3n/3nN3/KRnq3q/2qBr1b1/1Q1k4/B1R2q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 Ke4 Kc2 f5 Kb3 a5 c5 g5 e3 d5 h5 f3 h6 f4 c6 g3 b6 f2 c7 g2 h7 f3 b5 d3 b7 a4+ Kc3 g4 b6 d4+ Kb2 g3 Rh2 d2 Rh6 a3+ Kb3 d3 Qe1 d1N Rh1 a2 Rh5 d2 Qe2 Nc3 Rh6 d1N Ba3 Nd5 Qb2 Na6 b8B Qh4 b7 Bd6 Ka4 Bf4 Bb5 f1Q Rb6 f2 Nf3 g1N Ne5 g2 Bf8 Ne2 Na3 g1Q Nc2 Nd4 Rc1 Bg3 Nb4 Nf5 Ba7 Nfh6 b8B Qc4 Rb7 f1Q Bd4 Qc3 Be2 Qgf2 Rb5 Bh3 c8N Nac7+ Na6 Qf7 Rb4 Ne8 Bc7 Rb8 Bc4 Rb6 Bb5 Re6 Bc4 Kf5 e4+ Kf4 Nd6 N1e3 Bd3 Nc4 Nd7 Kf3 e5 Re7 e6 a1Q+ Qa3 Kf4 Ne5 Qab2 Qa2 Qbf2 Qb2 Bg4 Bdb6 Qfd4 Bc5 Ke3 Bg7 Rd7 e7 Rd8 Bf8 Nef6 e8Q Bc8 Qb5 Ne8 Qa1 Kd2 Qb7 Nge7 Qa7 Rg8 B5b6 Rg4 Qb1 Re4 Qa1 Re3 Qa3 Qde4 Bd4 Neg8 Qb3 Qc2 Ba1 Qc3 Qb1 Qed4 Qb2+
B1qnbQnn/K1P5/QN3n1q/1bBQNk2/1R5b/1b2R3/b3r1nQ/2R4r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 d5+ Kd3 h5 g4 a5 c4 h3 b4 h4 e4 f3 b6 h2 b7 h3 b5 f2 b6 a4 c5 a3 c6 a2 c7 Be6 Qa4 Nc6 b8Q Qc8 b7 Nce7 Na3 Ng6 Be2 f1N Nf3 Nd2 Qd1 Be7 Rf1 h1Q Nc2 h2 Rb1 a1N Rg1 Nab3 Ba3 Na5 Bb2 Nc6 Rc1 Ra2 Rg3 Nd8 Nb4 Rh4 Qa7 Nh8 b8R Kg6 e5 f5 g5 f4 Bc3 Kf5 g6 Ne4 g7 Nef6 Bf1 Re2 Qc2 Bd7 e6 Be8 Ne5 f3 Qb6 f2 Bg2 f1B Re3 Rh6 Qd2 Rh7 Qa6 Rh6 Kc2 d3+ Kb3 d4 Kc4 Rh5 Qda2 d2 Nd5 d1N Bb4 d3 Bc5 d2 Rb4 Rh3 Nb6 Rh7 Rg3 Ne3+ Kd4 d1B Ba8 Ng2 Re3 Bb3 Qd2 Nh6 g8Q Ba2 Qg3 Nhg8 Qh4 Ne4 Qg3 Bh4 e7 Nef6 Qd1 Re1 Qb3 Bfb5 Qc4 Re2 Qd5 Bh5 e8Q Bg6 Qe7 Bge8 Qf8 Rh6 Rcc3 Qc1 Rcc4 h1B Qh2 Rh7 Re4 Qh6 Re3 Ne1 Rc1 Be4 Be7 Ng2 Kc5 Bf3 Na4 Be4 Kb6 Bc2 Bc5 Bcb3 Ka7 Rd7 Qdf7 Rd1 Nb6 Rh1 Qd5
q7/1R1bB3/1Q3qB1/N4BbQ/BK2n2Q/1R1qqn2/br2kbPN/1br4r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 c4 d5 b6 f5 b5 a5 c5 h5 c6 f3 c7 Kf4 b7 f2 e5 d3 Kc3+ d2 e6 Ke3 b6 f4 e7 a4 e8B d4+ Kc4 a3 Nf3 h3 Be2 f1B Bb2 a2 Ba4 h2 Qc2 d1B Qc3+ d3 Qb3 h4 Bc3 h3 Bd7 d2 Bb5 Nf6 Ne5 f3 Bd3 f2 Nc6 Nbd7 b8Q Be7 b7 Ne4 Na5 Bc2 Ba4 d1Q Nc6 Bg5 Bb2 Ne5+ Kb5 Nf3 Bg7 Bd7 Rg1 h1R c8B h2 Qe5 Rb8 Nd2 Bb1 Bf6 Be2 Be7 f1Q Qb4 Qc1 Bd6 Qf6 Be7 Bd1 Qc4 Bb3 Kb4 Rh4 Bc2 Qd3 Na5 Ke2 Nf1 Qe3 Qf5 Rf4 Qg4 Rf5 Qh5 Rc5 Qd4 Nf2 Qdg4 Ne4 Qgh4 Bbe6 Bcb3 Bg8 Bf7 Rc1 Be8 Bc2 Rb1 a1B Bf7 Bd4 Bg6 Ba2 Rb3 Bcb1 Bd8 Ra8 b8Q Ra6 Be7 Rb6+ Ka3 Rb5 Qb6 Rb4 Rc3 Rb2 Rb3 Qa6 Kb4 Qa8 Qd6 Qd3 Qc5 Bf2 Qb6 Be8 Be6 Bd7 Bef5 Re1 Qb8 Rc2 Bf7 Qfd4+ Ka3 Q4e3 Bh3 Rd2 Rc3 Bc2 Qb7 Rb1 Bg6 Rdd1 Nd2 Rb6 Rf1 Rg1 Be6 h1Q Bef5 Ra1 Rb1 Re1 Nf1 Qh2 Be6 Qhf4 Nh2 Qf6 Bef5 Rh1 Rb4 Rac1 Qc7 Rc6 Rb7 Bcb1 Rcb3 R6c2 Qb6 Rb2 Kb4
2B1bR2/Q1r1B1r1/2rn1bQn/RQ1rqnn1/2N5/7R/K1Nk1P1R/n5qq b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 a5 Kc2 h5 Kb3 d5 c5 e5 c6 d3 g5 Kf5 c7 a4+ Ka2 h3 b4 a3 b6 h4 g6 h2 g7 h3 b5 e3 b7 Ke4 b6 d4 Qe2 d2 Nf3 d1Q Qb2 e2 Nh4 Kd3 Nd2 e4 Kb1 e3 Ng6 Ra7 Ra2 Qd5 Qb4 Be7 Qc5 Bf6 Bg2 e1R Nf1 e2 Ra1 a2+ Kb2 Qe5 Ng3 Nh6 g8Q Nc6 b8Q Na5 b7 Rg1 Qg7 e1N Qd5 Bd7 c8R Be8 Qe7 Nf3 Qdf7 Ng5 Ne2 Ra6 Qa7 Rh7 b8R Nb7 Qd7 Nd6 Bb7 Rc6 Rc7 Rg2 Bc8 Qg1 Bd2 Rg3 Bb4 Rg7 Bc5 Kd2 Qf5 d3+ Nd4 Rf3 Kb3 Rf4 Nc2 Rc4 Ba3 R4c5 Qc4 Rd5 Qb5 Rdc5 Rf7 Rc7 Rf8 R5c6 Rf1 a1N+ Ka2 Kc3 Bc5 d2 Ra8 d1R Re1 Rd5 Re3+ Kd2 Ra3 Qe2 Ne5 Qe3 Qg6 Qd4 Nd7 Qe5 Nb6 Ndf7 Be7 Nd6 Qb8 Qc1 Rg1 h1N Rg2 h2 R8a5 Ng3 Qa7 h1Q Rh2 Ngf5 Rah3 Qcg1 Nc4+
1kB1Kb2/7N/n2qQ1rr/QnQ1b1N1/4bn1n/B1b1n2r/1BqP3Q/1RR5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 f5 b4 a5 e4 f3 g4 f4 e5 c3 g5 a4 g6 f2 g7 h3 e6 c4 e7 c2 e8Q c3 Ra2 f3 Qe5+ Qd6 Qf5 a3 Qf7+ Ne7 g8Q h2 Qf4 Ra6 Qe5 Bf5 Ne2 Nd5 Qf6 Be4 Qh4 Nf4+ Kg5 h5 Bb2 c1B Ng1 c2 Bh3 f1N Bc8 f2 Nf3 Ng3 Nc3 f1N Qe6 Nf5 Kf6 Nd4 Kf7 Ne3 Qf2 h4 Ke8 h3 Ra1 a2 Ng5 Rh6 Rb1 a1B Qh5 Rc6 Rg1 h1N Nh7 Na6 b6+ Kb8 b5 h2 b7 Ng3 Ba3 Bcb2 Rgc1 h1R Qg1 Bf5 Ne4 Rh3 Neg5 Be4 Qf2 Bc3 Qg1 Ka7 b8B+ Ka8 b6 Nb5 Bc7 Ngf5 b7+ Ka7 Bb6+ Kb8 Bd4 Nh4 Qh2 Bb4 Bdb2 Bc3 Rd1 c1Q Qf2 Qc2 Rdc1 Rc7 Qh2 Rg7 Qg1 Rgg6 Qf2 Kc7 b8Q+ Kc6 Qa8+ Kc7 Qad5 Kb8 Qh2 Nd4 Qa5 Nb5 Qd5 Be5 Qg4 Bc3 Qc5 Be5 Bd4 Bc3 Qe6 Bb4 Ba1 Bbc3 B1b2
nbRnQ2r/2Q1N1KB/b3rB2/7N/Rn4b1/qqB3bq/1P1n4/1QBbk3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h3 Rh6 Kf2 Ke7 e4 Ke6 c4 Ke5 h4 g5 b6 d5 c5 f5 c6 a5 h5 f3 Kg3 f2 c7 a4 b7 d3 Bg2 Kd4 e5 f1B e6 d2 e7 Ke3 e8Q+ Ne7 Bf3 a3 Nc3 d4 Qc2 f4+ Kh2 Kf2 Nge2 d1Q Bg2 f3 Bd2 d3 Ng3 a2 Qd7 Nd5 Qc1 Bd6 Ne2 Nc6 b8B Nb6 Ba5 d2 Qe8 Qe7 Nf4 Bfa6 Qc3 Qb3 Rac1 a1N Nd5 Nc2 Qd3 Bf5 c8Q Re6 Ra1 Qf8 Rhc1 d1B h6 Qe7 Nb4 Ke1 h7 f2 h8B f1Q Qg8 Bf4 Be4 Qh3+ Kg1 Bd6 Nh5 g3 Ra4 g4 Qb7 g2 Nd5+ Qc3 Qg6 Bg3 Bf4 Qa3 Bg7 Rh8 Qe7 Na8 Qge8 Nd8 Bfh6 Ne3 Qb1 Bb8 Bf4 Qcb4 Rc8 Nc2 Qc7 Qbc3 Ne7 Qcb4 Bb6 Qbb3 Bc1 Nb4 Ba7 Qhe3+ Kh2 g1B+ Kg2 g3 Bad4 Bfg4 Bh7 Bf2 Bc3+ Ke2 Kh1 g2+ Kh2 g1N Bgd4 Nf3+ Kg2 Bg1 Kg3 Nd2+ Kh4 Bh2 Bf6 Qh3+ Kg5 Ke1 Kg6 Bg3 Kg7
r1Rn4/3nN1n1/2q3b1/1n2R3/1Q1R1nB1/q1qb1bP1/rNkbRQ2/3N1KB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 Ke7 e4 Ke6 b4 Ke5 b6 f5 c5 h5 b5 a5 c6 d5 g3 a4 c7 f3 b7 f2+ Ke2 f4 b6 f3+ Kd3 h3 Be2 f1N Rh2 h4 Nd2 f2 Qe1 a3 Bh5 a2 Ke2 d3+ Kf3 Kd4 e5 Kc3 e6 d4 e7 Ne3 e8R f1B Kf2 Ra3 Nb3+ d2 Bg4 d3 Be2 Qf6+ Bf3 Bf5 c8R+ Nc6 b8Q Nd5 b7 Bb4 Qa8 Nf4 b8N Bg6 Qe7 d1N+ Ke1 Ne3 Qe4 d2+ Kf2 d1N+ Ke1 Nf5 Rb2 h2 Nc5 h1B Nh3 Ng7 Nf2 h3 Rc7 h2 Be3 Ra4 Rab1 a1Q Qa7 Be2 Rd8 Bd3 Bg4 Qf8 Rcd7 Nf6 Re8 Ba5 Re5 Ra2 Re2 Rg8 Rd6 Nd7 Kf1 Qb2 Na4+ Kb3 Bh3 Bd2 Rc1 Nc3 Nd1 Nb5 Bg4 Qe7 Rdd5 Qea3 Bg1 Qa1 Rcc5 Qc3 Nab2 Kc2 Qb4 Rc8 Rd6 Nd8 Nc6 Ra8 Ne7 Bhe4 Rc4 h1Q Qf2 Bc6 Rdd4 Qd5 Be6 Qc5 Bh3 Bf3 Bg4 Qb6 Rc7 Qbc6 Rc8
5qq1/br1n1Qrq/BbrQ1N2/2BR3b/rNnq4/2P1R1NN/5q2/1Q1k3K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Ke6 Kg2 Ke5 e4 d5 b4 f5 g5 a5 g6 h5 g7 a4 b6 f3+ Kh2 f2 b5 a3 b7 a2 b6 d3 Be2 Kd4 e5 f1Q e6 h3 e7 f4 e8Q d2 Bd3 h4 Bb5 f3 Ba4 f2 Qeh5 Ke3 Qe8+ Ne7 g8N d4 Bc6 d3 Bb2 Rh6 Be4 Nd5 Bg7 Ra4 Bh8 Rc6 Qdh5 d1R Ne7 d2 Ne2 Bg4 Nbc3 Nd7 b8Q Rb1 b7 d1Q Nc1 Kd2 Bd4 Ne3 Ned5 Nc4 Nb4 Bc5 Ncd3 Ba7 Qd5 Bh5 Qef7 Qg8 Bc5 Qdg4 Bh7 Qd4 Ne4+ Kd1 Ng3 Qe1 Rg1 f1Q Kh1 h2 Nf4 Qef2 Nh3 Bb6 Qbd6 Ba7 Qfg6 Qff8 b8N Qe1 Kg2 h1R Qdf7 Bb6 Rf1 Rg1+ Kh2 Ba7 Rf3 Qe3 Rf5 Rg2+ Kh1 Qf2 Rd5 Bb6 Nf4 h3 Qe4 h2 Nh3 Rc1 Rb1 a1B Rb3 Rb1 Re3 Bc3 Bf5 Bd2 c3 Ba7 Ne2 Rg7 Ng3 Rb2 Qb1+ Bc1 N4a6 Rb7 Bd3 Bb6 Nc7 Ba7 Ne8 Bb6 Na6 Ba7 Qb6 Ba3 Bf1 Bb4 Qb5 Ba5 Nf6 B5b6 Nb4 Rcc7 Nc2 Rc6 Nf4 Nb2 Qb4 Bg4 Ba6 Nc4 Qb5 Qe1+ Kg2 Be2 Qb2 Qed2 Nb4 h1Q+ Kf2 Qh4 Kg1 Qhh7 Nh3 Bh5 Kh1 Qf2 Qb1+
b2n1R2/B1r2rbq/5QBB/2qQn1rN/2R5/1P1rb2K/qbQ3N1/4krQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 h4 Kc5 c4 Kb4 e4 a5 b6 g5 b7 f5 e5 d5 b3 a4 c5 a3 h5 a2 e6 d3 e7 d4 e8Q f3+ Kh2 d2 c6 g3+ Kh3 f4+ Qd7 d3 c7 f2 h6 g4+ Kg2 Qh4 h7 Ra7 Nc3 Nc6 b8Q+ Bb7 c8Q Nf6 Nh3 Rg8 h8B Rg5 Qdc7 Nd7 Qe2 d1Q Nb5 d2 Qe1 Ba8 Rh2 f3+ Kh1 Nd8 Qbb7 Bg7 Qee5 Qc2 Bg2 Qhh7 Qcb6 f1R+ Qg1 d1R Qf6 f2 Qd5 Rd3 Be4 Rc7 Kg2 Ne5 Nd6 Kc3 Ne8 Qb2 Rb1 a1B Bg6 Qa2 Nf4 Bb2 Rh4 Kc2 Qcf5 Kd1 Qc8 Ke1 Ra1 Rd7 Qc2 Rc7 Be3+ Qb1 Ra6 Qa1 Ba7 Qa2 Kh1 g2+ Kh2 g3+ Kh3 Re7 Ra4 Rf7 Rc4 Rc7 Qh2 g1Q Rh5 Bf8 Ng7 g2+ Qg3 Nd7 Rh4 Ne5 Ngh5 Bg7 Rg4 Rd1 Qh2 Rd3+ Rg3 Qh1 Rf3 g1B Rg3 Qe4 Rf3 Qd4 Qh1 Bh6 Bg7 Qc5 Bf8 Bg7 Qg2 Bh8 Bh6 Bg7 Qg4 Bh2 Ne6 Bf4 Qg1 Be3 Nef4 Rf5 Qg2 Rg1 Qh2 Rgg5 Qg1+ f1R Qfd6 Rff7 Qf6 Rd2 Ng2+ Ke2 Qe7 Rff5 Nh4 Ke1 Rff4 Rf8 Rf7 Rd3 Qf6 Re8 Rf8 Ree7 Re4 Red7 Rc4 Rf7 Ng2+
rn1nq1QQ/1b1N1R1n/3Q1bBK/B3r3/1B1b1PQR/7q/1nk2r1r/2N2r2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 a5 c4 e5 b4 h5 g5 Kf5 g6 d5 c5 e3+ Kd3 e2 b6 e1R b7 h3 g7 h2 b5 a4 c6 h4 b6 a3 c7 h3 Qa4 a2 Qa5 e4+ Kd2 e3+ Kd3 e2 Qa7 Bc5 Qa6 Nf6 g8Q Nh7 Nf3 Qe8 Kd2 Ke4 Rg1 h1Q Rg7 h2 Ne5 d3 Bh3 d4 Nd7 Be7 Rg4 Bf6 Rh4 Qf3 Bb2 h1R Ba3 Rhf1 Bb4 Rf2 Be6 Ref1 Bf7 Qh3 Qa3 Re1 Ba5 Ref1 Qd6 e1N+ Kd1 d2 Nc3+ Ke3 Ne2 Kd3 Rb1 a1B Nc1+ Ke3 Bg6 Nf3+ Kc2 Nfg5 Rb5 Re1 Rf5 Ne6 Bb4 Nd8 Ba5 Nbc6 b8B Bb7 c8Q Bc3 Bc7 Nb8 Bb4 d1N+ Ne2 Bg2 b7 Nb2 Bca5 Ref1 Qcc6 Bh1 Qg2 Re1 Qg4 d3+ Kb3 Kd2 Nc1 Bd4 Rf6 Re5 Rf7 Na6 b8Q Bb7 Qbc7 Nb8 Qc8 Nd1 Kc4 Kc2 Rf5 d2 Rf8+ Re4 Rf7 Bf6+ Kc5 Bcd4+ Kc4 Ndc6 Kd5 Nb2 Qd8 d1R Qc8 Rdf1 Qd8 Qe7 Qde8 Qf8 Qee5 Qd8 Ke6 Qe8+ Kf5 Nd8 Bh5 Nc4 Kg6 Nb2 Kh6 Ree1 Qee6 Re5 Q8g7 Rg8 Qh8 Rgg5 Qa2 Ree2 Qae6 Rge5 Qgg8 Rh2 Qeg4 Ref2 Bg6+
n6Q/1R1nq2k/2bRNn2/n1Nq4/4rPb1/bbK1QB2/1rB4N/q2b2BN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 b4 h5 f4 e5 c4 a5 g5 d5 b6 h3 b7 h2 c5 a4 b5 d3 b6 h4 c6 d4 c7 a3 Qe1 h3 Ra2 e3+ Kd1 e4 Qa5 d2 Kc2 d1N Be2 d3+ Kb3 d2 Bg4 e2 Qa7 e1Q Bb2 e3 Nc3 e2 Nf3 Ne3 Nd1 Nf6 Nf2 Qd5+ Kc3 Nbd7 b8N Kh7 b7 Qa1 Na6 d1B b8N Nc4 Qe3 Ncb6 Nc5 Ra4 Nc6 Na8 Nd8 Re4 Nde6 Bb3 Rd1 h1B Rd2 e1Q Nh2 Bf3 Nh1 Bfd1 Bf3 Qh4 Rd4 Bd6 Rb4 Re8 Rb7 Rb4 Nd8 Ree4 Nde6 Be7 Ng4 h2 g6+ Kg8 g7 Kh7 Ng3 h1B g8B+ Kh8 Bf7 Kh7 Nh2 Qhg5 B7h5 Bd6 Bhg4 Qg7 Bh3 Qe7 Bf1 Bg2 Nh1 Rb5 Bd3 Rb6 Bh5 Bgf3 Bc2 Bg4 Ra7 Bb7 c8Q Bc6 Rb7 Qe5+ Kd3 Qd5+ Bd4 Rb5 Rb2 a2 Kc3 Rb6 Qe1 Rb5 Bg1 Rb6 Qe3 Rb5 Na4 Ba3 Nac5 Bc4 Qd3 Bge2 Qe3 Qc1 Qd8 a1N Nf1 Qf5 Nh2 Nb3 Qf8 Na5 Rb4 Qa1+ Kd2 B4d5 Rd4 Rb2 Kc3 Bb3 Rd6 Qd5 Qc8 Bf1 Qf8 Bh3 Bf3 Bg4 Qh8+
2Qb4/Q1nb2bq/2bQr3/1B2r3/r1RPqrQB/nN3N1R/B7/bkn4K b - - 0 1 illegal: No possible last move
q2Q1q2/n1Rb2B1/B1N5/1R2r3/1rPb1Nn1/1qN1Q3/b1nN2n1/kq2BnK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 b6 f5 g5 a5 g6 a4 b5 d3 g7 Kd4 b7 f3 b6 h3 e5 f4 e6 h4 e7 a3 e8N h2 Qd2 a2 Nd6 h3 Qb4 d2 Qa4 d1B Qa7 Nh6 g8Q Nc6 b8N Bb3 Nd7 Rb8 Qa8 Na7 b7 Ng4+ Ke1 f2+ Ke2 f3+ Kd2 Bg7 Qf7 Re8 Nc5 Re5 Qe7 Qf8 Na4 Bd7 Bg2 f1Q Qd8 f2 Nc8 Ne3 Be4 Ng2 Ne7 Bh8 Ba3 Qc1+ Ke2 f1N Nd2 Qb1 Bc1 Bf6 Kf2 Bh8+ Bf3 Bf6 Nc5 Kc3 Nc6 d4 Ne6 d3 Ne2+ Kc2 Rg1 h1Q Nc3 h2 Nf4 Bh8 Ba3 Bg7 Bb4 Kb2 Qb6 Bf6 Qe3 Bh8 Nde4 d2 Ba5 d1Q Nd2 Qh7 Rc1 a1N Bd5 Ba2 Rb1+ Ka3 Rb2 Qhb1 Rb5 Qdb3 Bb4+ Kb2 Ba5 Rd8 b8B Nc2 Bd6 Rde8 Qd8 Ka1 Be7 Bg7 Bf6 Bh8 Bg7 R8e6 Ne7 Rb6 Nc6 Rb7 Rc5 Rb4 Rb5 Nh4 Rg3 Qe4 Rg6 h1N+ Kg1 Ng2 Rf6 Nf2 Rf7 Ng4 Be6 Be8 Bc8 Qf3 Rc7 Bd7 Ba6 Qe4 Ne7 Qa8 Nc6 Rg5 Bh6 Bd4 Bg7 Rf5 Bb6 Re5 Bc5 Nh4 Be7 Ng2 Bh4 Qe1 Bf2 Qeb1 Be1
2rnk2r/2qN2b1/5BnQ/1b1qQQ2/1P2b1B1/5b1b/nqN1qRQK/2B4R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 g4 h5 Kg2 a5 e4 d5 b4 a4 c4 d3 c5 a3 e5 d4 c6 f3+ Kh2 d2 b6 h3 e6 f2 b7 d3 c7 f4 e7 f3 g5 h4 g6 a2 g7 Nc6 b8B Kd7 Be2 f1B Qa4 d1N Nc3 d2 Ba3 f2 Ne4 Nc3 Qa6 d1B Bh5 Bb5 Nf3 Bc2 Rhf1 Bcd3 Rac1 a1Q Nd4 Na2 Kh1 h2 Rg1 f1Q Nc2 Qe2 Rcf1 Qc3 Bc1 Qb2 Ba7 Rb8 Bf2 Ra8 Kg2 h1B+ Kh3 Rb8 Bd4 Ra8 Rf2 Rb8 Kh2 h3 Kg3 h2 Rd1 Bg2 Bc3 h1Q Nc5+ Kd6 e8Q Bch3 c8Q Qc7 Re1 Ne7 Qf5 Rc8 g8Q Bh6 Qgg5 Bg7 Nd7 Bd5 Qa8 Nd8 Bg4 Ng6 Qh6 Bdc6 Qee4 Bb7 Qef4+ Ke7 Bf6+ Ke8 Ref1 Qhe4 Kh2 Qec4 Qd6 Bbg2 Qaf3 Be4 Rh1 Qd5 Qfg3 Bgf3 Qg2 Bc4 Qdg3 Bb5 Qge5+
B2Nb1Q1/nK5n/BRR4Q/3n1rP1/3N2B1/r1qqk1Bq/2nb1q2/nr3Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 g4 a5 b4 h5 c4 a4 e4 h3 b6 d3 b5 a3 b7 h2 c5 d2 c6 h4 c7 h3 e5 f3 b6 Kf4 g5 f2 e6 a2 e7 Ra3 e8B Ke3 Bf7 f4 Bb2 f3 Bf6 Nc6 b8Q Na7 b7 Bb4 Be2 f1R Qa4 d1N Qa8 f2 b8Q Nc3+ Ke5 d5 Q8c6 d4 Ba6 d3 Qab5 d2 Ne2 d1N Bd5 Bd7 c8B Be8 Nd4 Ba5 Rg1 h1Q Ne6 h2 Nd2 Qf3 Rb1 a1N Nb3 h1Q Nbd4 Qhh3 Be4 Qb6 Kd6 Nd5 Be5 Ngf6 Nd8 Nh7 Bg4 Bd2 Bg3 Rf8 Rg2 Rh1 Qf1 Rf5 Rh2 Qa5 Rb6 Qc3 Qbc8 Rg1 Qe6 Qe2 Qg8 Qed3 Bg2 Nf4 Kc7 Nd5+ Kb7 Rh1 B2f3 Rg1 Qg2 f1Q Qh6 Qf2 Rc6 Nb2 Rh1 Rb1 Rb6 Nc4 Rc1 Ra5 Qf1 Na3 Be4 N3c2 Bh1 Ra3 Bhf3 Qa5 Bh1 Ncb4 Rc3 Nbc2 Rc6 Qac3 Rf6 Re5 Kb8 Nc7 Ba8 Rf5 Kb7 Nd5 Rc6
1N1Bk1Rb/1br2qQ1/3rb1Q1/1RqP1n2/2q1r1N1/3R4/n3B1qN/KR1q3b b - - 0 1 illegal: No possible last move, all moves rejected
rq2q2Q/7R/bb2Bn1b/q1Pn1Q2/2nkqR2/1b3rBK/2qN1RB1/2N2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 Kg2 h5 c4 f5 g5 a5 b6 f3+ Kh2 a4 b7 f2 b5 h3 b6 f4 g6 h4 g7 d3 Ra3 f3 Bh6 d2 Qc1 d1B Bd2 d4 Qc2 d3 Be1 d2 Rb3 a3 Rb2 a2 Ne2 a1B Nec3 Na6 b8R Qe8 b7 Kd4 e5 Nb4 e6 Nd5 e7 Ngf6 g8B Bh6 Be6 Rf8 Qf5 Bb3 Bg8 d1Q Qg6 Qc2 Bg2 f1Q Bg3 f2 Qg5 Qe1 Na2 Qa5 Be6 f1N+ Kg1 Nd2 Kh2 Rf7 Nc1 Rf8 Qf5 Rf7 Kg1 h2+ Kf2 h3 c5 Nc4+ Nd2 Rf8 Rf1 h1Q Ra2 h2 Rb2 Qd7 e8B Qg1+ Kf3 h1Q Ra2 Qda4 Bb5 Bc3 Rf2 Q4b4 Ra4 Qgh2 Ba6 Qbb5 Rb4 Qe8 Bb5 Bd7 Rd8 Rf7 b8Q Bc8 Rd7 Ba6 Qd8 Rf8 Rh7 Qe1 Qd6 Rf7 Qf8 Qe5 Qg8 Q5b8 Qh8 Qh1 Bc6 Qe1 Bf1 Qe2+ Kg2 Qee4+ Kh3 Rf8 Nb1 Bcd2 Ra4 Bdf4 Bb7 Bc7 Nd2 Bb6 Ra3 Ba4 Raf3 Bb3 Rf4 Rg8 Rh4 Rg4 Bc6 Rf4 Rg4 Rf3 Rf4 Qbc8 Bb7 Qb8 Qf8 Rd3 Rh2 Nc3 Rh4 Qef4 Qh8 Re3 Be4 Nd5 Rf2 Rc3 Beg2 Rf3 Rg4 Qfe4 Rf4
nNQ3N1/qrBbqn2/3b1nQP/1n3k2/4R2q/Rr1q4/1rN4N/2n2BBK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Ke6 h4 g5 c4 f5 b4 a5 e4 d5 c5 f3+ Kh2 g3+ Kh3 d3 h5 g2 Kh2 a4 h6 f4 b6 d4 e5 f2 b7 d2 b5 d3 c6 a3 b6 a2 c7 f3 Bb2 g4 Na3 g3+ Kh3 Nf6 Bc1 Na6 b8Q Kf5 b7 Rh7 e6 Bd7 c8N Nc7 Nc2 Bd6 e7 Ra3 e8N Na8 Rh2 Rb3 Ne2 g1Q Bg2 f1R Rb1 a1N Ba3 f2 Na7 Qe7 Bc5 Re1 Rb2 f1Q Qb1 d1Q Qc8 d2 b8B Qf4 Bf1 g2+ Be3 Qgf2 Ng1 Re2 Ra2 Qa4 Nc6 Qa7 Nf3 Qfe1 Bf2 g1N+ Kg2 Nh3 Rh1 Ng5 Rh4 Nf7 Kh1 Rg7 Bg1 Reg2 Rb4 Qh4+ Nh2 Qf3 Rg4 d1N Ra6 Nc3 Re4 Qd3 Ra3 Nb5 Bc7 Re2 Nb8 Rh7 Nb4 Reb2 Nc2 Rc3 Qe1 Nb3 Qg3 Nc1 Qg8 Rcb3 Qg2 Nd5 Nf6 Rg7 Ng8 Nf6 Qg3 Rg4 Bf2 Nc3 Rea4 Rgb4 Bg1 Rb7 Re4 Nb5 Qg6+
R1R5/3rb2q/3Pr1nn/R4B1b/QBqb2b1/2N4k/R1KB2N1/1r1nQ1bn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 a5 d4 h5 Kd2 f5 e5 c5 g5 c3+ Kc2 a4 g6 h3 b6 h4 g7 f3 b5 f2 b7 c4 b6 a3 Bh6 h2 Qe1 f4 d5+ Kf5 d6 Kg4 e6 h3 e7 a2 e8Q f3 Q8e7 Qd7 Be2 f1N Na3 Ra7 Qb1 Ne3+ Kc1 c2 Bf1 f2 Kd2 c1R Nc2 c3+ Kd3 Nc6 b8R Nd1 b7 Ne5+ Kd4 Ng6 Bf4 Rh6 Qb5 Rb1 Bd3 f1Q Ne1 c2 Ne2 c1B Ra8 Be3+ Kc4 Bd4 b8B Bg1 Qa4 Qb7 Qe4 Be7 Nc3 Kh4 Bd2+ Bg4 Qe6 Qf7 Be4 Qc8+ Kd3 Qc4+ Kc2 Rd7 Bf5 Rb4 Qa5 Bc5 Qe3 Nb2 Qf3 Rd8 Qd5 Ne5 Rc1 a1B Qa3 Bh5 Rd1 Bf8 Be3 Re6 Bc7 Nh6 g8R Ng6 Qd2 Qh7 Ba5 Be7 Ng2+ Kg3 Rdg1 Rd7 Rgc8 Rb8 Rb1 Rb6 Rhc1 Nd1 Rb2 Rb4 Bg5 Bg1 Qe2 Rbb7 Bd2 Rb3 Bb4 h1B Ne3 Bb7 Ng2 Bbf3 Qe1+ Kh2 Qa7 Bfg4 Qa3 Qf4 Ne2 Qc4+ Bbc3 Rbb7 Rb5 Bb2 Ra1 Rb6 Ra2 Ba1 Rba5 Rb1 Nef4 Bb2 Qa4 Ba1 Qf1 Kg3 Nd5 h2 Qe2 h1N Qe4 Kh3 Qe1 Qa6 Bb4 Bad4 Nc3 Qc6 Re8 Qc4 Rec8
4RBqq/q1Q3b1/2P1bQ1q/3Nn1r1/1KB1N3/R2R3B/2b2n1k/q2rBbn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 f5 g6 a5 c5 d3 Kc3 a4 c6 h3 b6 h2 g7 d4+ Kc4 d2 b5 a3 b7 h4 b6 d3 Kb3 a2 Qc2 d1N Kc4 f3 Bh6 d2 Bd3 f4 Ne2 f2 Qb2+ Nc3 Re1 d1B Qa3 f1B Qc1 h1Q Qc2 f3 Nf4 h3 Qc1 h2 Na3 f2 Nd5 Nf6 g8R Bg7 Qb2 Bc2 Red1 Be6 Nb1 Nbd7 Re8 Ra5 Kb4 Ng4 b8Q+ Qc7 Qc8 Qa7 b7 Qg2 Ba6 h1Q Rd3 Qg3 Bd2 Qh6 Be1 Rf8 Nd2 Rf3 Rd1 a1Q Bc4 Rf5 Rc1 Rg5 Rb1 Qgh4 Qd8 Qa2 Ra1 Qh8 Qb6 Q4h6 b8B+ Qc7 Ne7 Kf4 e5 Qa7 Bd6 Ne2 Qc7 Rd5 Ne4 Ng1 Bc5 Q2a6 Raa3 Qc8 Rd2 Rd3 Nd5+ Kf3 Bf8 Kg2 Qc3 Kh2 Rd1 Rd4 Rd3 Qca8 Rf3 Rd1 Rd3 Bg2 Qd4 f1Q Qf2 Qc8 Qf3 Nf2 Qf6 Bf5 e6+ Ne5 e7 Be6 Rd8 Bgh3 e8B Qca8 Bh5 Qg2 Bg4 Qg3 Rc8 Bf1 Bh3 Qg4 Nc5 Qd4 Re8 Qa1 Re7 Qe8 Ne4 Qeg6 Re8 Qgh7 Rdb3 Q7g8 Rd3
n2N2Q1/1n2nN1q/1BP2n1B/Nbbr2r1/r2qB2K/k3b3/Q2R1RN1/2n1b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 Kb4 b3 a5 b6 f5 e5 d5 c5 g5 c6 g3+ Kg2 g4 b7 d3 h5 a4 e6 d4 e7 a3 e8N a2 h6 d2 h7 d3 Rh2 f3+ Kh1 f2 Kg2 f4 Bb2 f3+ Kh1 Qc7 Ne2 Nd7 b8B Nb6 Nf6 Ba6 Qc2 d1R Nf4 d2 Nd7 Bb5 Rg2 Ra4 Nc5 Nf6 Rh2 Rg8 h8Q Na8 Nce6 Qh7 B2e5 Bc5 Bec7 Rg5 Na3 Be3 Rc1 a1B Nc4 Bc3 Na5 Ka3 b4 Bc5 Nd8 Be3 Rh4 g2+ Kh2 g1N Bg2 Ne2 Bb6 g3+ Kh3 f1N Qg8 f2 Be4 g2 B8a7 g1B Ng2 Bc5 Bb8 Be3 Bf4 Nfg3 Rh6 f1Q Kh4 Qf2 Rb1 Nc1 Rb2 Bc5 Qb1 Qd4 Rh5 Re5 Bh6 Be3 Rf5 Rd5 Qc2 Rg1 Rf2 d1N Qe2 Be1 Rd2 Nb2 Qc4 Ba6 b5 Nbd3 Qc2 Kb4 Qa2 Nf5+ Kh3 Ne7 Kh4 Qg6 Ba7 Qh7 b6 Bb5 b7 Qf5 b8N Qh7 Nf4 Rgg5 Nd7 Ne8 Ng2 Nf6 Qc4+ Ka3 Ne5 Bd6 Qc2 Nc5 Nef7 Nb7 Bb6 Bc5 Qa2+
1B2rn1B/1r4Q1/1P1q1R1b/1k1NqNR1/b2nB3/r2rQb2/q5r1/2NqNK2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 d5 c4 Kd7 g4 a5 b4 f5 c5 h5 g5 h3 g6 h2 b6 Kc6 b7 a4 e5 f3 e6 a3 e7 f4 e8Q+ Nd7 b8B d3 g7 d4 Qd2 a2 Qd1 f2+ Kd2 f3 Qb3 h4 Qe5 h3 Qc3 Ra3 Ba7 Ne7 g8N Kb5 Kd1 Nc6 Kd2 Bh6+ Kd1 Nf8 Bb8 Bd7 Ne2 d2 Rg1 h1R Ne7 h2 Rg5 Rg1 Qee3 h1B Bb2 Rg2 Nd5 Rg8 Nf6 Be8 Nd5 Qd6 Nc1+ Ka4 Bd3 f1Q+ Qe1 f2 Be4 Qc4 b5 f1R b6 Rf7 Qf2 Qb3+ Ke2 d1R Nd2 Rb7 Nf3 Rd3 Ne1 Kb5 Kf1 Qc4 Rb1 a1Q Qe3 Qaa2 Ba1+ Qcb3 Rb2 Qe5 Rf2 Qd1 Rf6 Qdd2 Qf2 Qdf4 Bb2 Qd6 Qf3 Qfe5 Qe3 Qee7 Nf3 Nh7 Ne1 Ka6 Rh5 R2g3 Rf2 Rd2 Bc2 d3 Rff5 Bf3 Qh8 Rgg2 Rhg5 Rd1 Bc3 d2 Be4 Qee6 Bg7 Qee5 Rf6 Rf8 Qg8 Bd7 Qf7 Re8 Bh8 Nf8 Qg7 Ka5 Ne7 Kb4 Nf5 Nd4 c6 Kc4 c7 Ba4 c8N Kb5 Nd3 Rc1 Nce7 d1Q Nd5 Rcc3 Nc1 Rcb3 Nf4 Rd3 Nd5
nnr5/1B4P1/n2kbq1r/QK2Qq1q/2Bq1RR1/1nBR4/1B1b2rN/1qN5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 f5 Kc4 a5 e4 h5 b4 d5+ Kc5 a4 c4 h3 g4 h4 b6 d3 e5 a3 g5 h2 g6 f3 b7 a2 g7 f2 e6 d2 b5 f4 b6 d4 Kb5 d3 c5 h3 c6 f3 c7 Qd4 Nc3 Nf6 Na4 Rh6 Qe2 d1R Nb2 d2 Qe4 Nfd7 Qd5 Nc5 Bg2 f1Q+ Nd3 f2 Qf5 Nca6 Bb2 Kd6 e7 Be6 e8Q Re1 c8B d1N Qg5 Ne3 Rd1 a1N Nf3 Nd5 Rg1 h1Q Nh2 Re2 Nc1 Nb3 Rd3 Be7 Qd2 Bg5 Qa5 Bd2 Be4 Qf3 Rg4 Qff6 Bg6 Qd1 Bf7 f1Q Bg8 Rg2 Bc3 Nc6 b8R Q1f5 Bb7 Q1g1 Rc8 Ncb8 Rc4 Qd1 Rf4 Qdh5 Rg4 Qe3 Rcf4 Qed4 Nf3 h2 Bb2 h1Q Nh2 Bf7 Qe1 Be6 Qe5+ Kd7 Bc6+ Ke7 b7 Nb6 Bd5 Qd1 Bf7 Qc2 Bc4 Qb1 Bc3 Nc6 b8B Kd7 Bd6 Rc8 Ba3 Ncb8 Bab2 Na8 Bg6 Qf5g5 Be4 Qgf5 Bed5 Ke7 Qe1 Kd6 Qe4 Nac5 Bb7 Nca6+ Qe5+
q3nK2/k3P1R1/4rb2/1nRq1N2/r1q1qBB1/b2NBBrb/1r3Q2/1r2Q2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 Kb6 b4 h5 c4 a5 c5+ Ka7 g5 f5 c6 h3 g6 h2 e5 a4 g7 a3 e6 a2 c7 h4 Be2 h3 Bg4 f3 Qe2 f4 Qe5 f2 Qe4 f1Q+ Ne2 f3 Nc3 f2 Bf3 Nc6 Na4 Nf6 g8N Rh6 Nb2 Ne8 Rg1 h1Q Ne7 h2 Be3 Rh3 Re1 a1B Nf5 Rg3 Rc1 Qhg2 Qh4 h1R Rc5 Rh2 Qf6 Bd7 c8B Qe1 Qe5 f1Q Qf4 Bd6 e7 Rh6 Qh4 Re6 Qh2 Qh1 Qf2 Qh5 Bg4 Rb8 Bb7 Qg5 Ba8 Rb6 Bb7 Qa8 Rg2 Ra6 Rg1 Ra4 b6+ Kb8 b5 Na7 Bc6 Bc8 b7 Qb1+ Kd2 d3 Kc3 d2 Kb3 d4 Bcf3 Qbe1 Nd3 d1R Rg2 Rd2 Rg1 Raa2 Kc4 Ra4+ Kd5 Bb2 Rg2 Ba3 Rg1 Be5 Rg2 Bf6 Rg1 Rg2 Ng3 Rb2 Nh1 Rg3 Rg2 Bd7 Rg1 Nc8 Rg2 Ncd6 Rg1 Ka7 b6+ Ka6 Rg2 Nb5 Rg1 Rc6 b8Q Re6+ b7 Qfe2 Nc1 d3 Qe5 d2 Nd3 d1R Qc3 Q1f1 Qce1 Rdb1 Rg2 Rc6 b8B Re6+ Rc6+ Kb7 Bbf4 Qh5 Rc5 Qf7 Rh2 Qg2 Rh7 Qef1 Rg7 Ka7+ Rc6+ Bd4 Nc5 Bf6 Nd6 Ree4+ Be6 Ra6 Be2 Qf3 Bd1 Q1g2 Nd3+ Rb6 Be2 Bh4 Bd1 Ra4+ Ke5 Bc8 Rc5 Bf6+ Kf5 Qfb7 Bd7 Qgc6 Bf3 Qc4 Be6 Bg5 Kg6 Q6e4+ Kf7 Qbd5 Kf8 Bf6 Bh3 Bg4 Nf5 Rd6 Bd1 Re6 Bg2 Bh3 Bg4 Qd7 B2f3 Qdd8 Qee2 Qdd5 Qee1
K2RRQ1n/n1bPRB1r/r2Qbbb1/1kN3B1/3nnQ1q/8/1QN2br1/1q6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kd5 a5 d4 f5 g4 c3 e4 c4 b4 h3 e5 f3 g5 c2 g6 c3 g7 f2 b6 f4 b7 f3 b5 a4 b6 h4 Ne2 a3 Ng1 a2 Bc4 f1N Bd3 h2 Bd2 c1B Bc2 h3 Bb3 f2 Na3 c2 Qf3 Rh7 Bh6 Qh4 Be3 Ra6 Bh6 Nc6 b8Q Bc5 b7 Nd2 Ne2 f1R Qf4 Ne4 Ng3 Rg1 Bg5 Rg2 Rd1 Nh6 g8Q h1Q Qgf8 h2 Rd2 Bb2 Re1 c1N Nc2 a1B Rd3 Na7 Rdd1 Nd2 Ne4 Nf7 Bc4 Ncb3 Qfd6+ Ke8 e6 Nh8 e7 Qf1 Qa8 h1B b8Q Bc3 Qbb7 Ba5 Qbb8 Bcb6 Nc5 Ne4 Rd2 B1c3 Re3 Qb1 Qbb7 Nb5 Kc6 Ba1 d5 Bf6 Rd1 Bc7+ Qb6 Be1 Rdd3 Bf2 Re2 Kf7 e8R Be6 Kb7 Na7 Qb4 Nd4 Qb2 Rg3 Rd1 Bf3 Qad8 Rg2 Ka8 Bh5 Nb4 Ndc6 Rg8 Bd7 Qde5 Nd2 Nc2 Bg6 Qc8 Bh3 Rde1 Nd4 d6+ Ne6 d7 Ke7 Bd5 Bhf5 Qed4 Bg4 Re5 Kd6 Bb3+ Kc6 Qd6+ Kb5 R5e3 Nd4 Bf7+ Ka5 Qd8 B4f5 Q8e7 Bh3 Rd8 Bg4 Re6 Bh3 R1e5 Ne4 Qf8 Bhf5 Ree8 Bg4 Qa2+ Kb5 R5e7 Be6 Qb2+
N2n2qq/r1NP1qBq/QN6/1nR1Q1b1/B4BBq/b2b1r2/b2r4/2Rk2K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 e4 Kd4 g5 h5 e5 f5 g6 a5 b6 c5 b7 h3 g7 f3 e6 f4 d3 h4 e7 h2 e8B c3 b5 a4 b6 c4 Bb2 a3 Nd2 h3 Bf7 a2 Nb1 Ba3 Qe1 Nh6 g8N Nc6 b8Q Ra7 b7 Be6 Bc1 c2 Bb2+ c3 Qd1 c1B Be2 Nf5 Be8 Nd6 Ne7 Nb5 Nc8 Rf8 Nb6 Bf7 Kf1 Ke3 d4 f2 d5 c2 d6 Qc8 Bh5 Nd8 Ne2 Bb3 Rg1 h1Q Nbc3 h2 Na8 Qe4 Rb1 h1Q Nd4 a1Q Na4 Qh4 Rg5 Qh7 Ne6 Ba2 Bg7 Qf6 Kg2 f1B+ Kg1 f3 Bg4 Bd3 Qf1 Kd2 Rc5 Qfg5 Rb2 f2+ Kg2 Rf7 Nec7 Rf3 N4b6 Qd5 Bc6 Qdg8 d7 Qgh8 Na6 Q8g8 Qe5 Qgh8 b8B Q8g8 Qg1 f1R Qgd4 Kd1 Qdd6 Rf2+ Kg1 Bg5 N6c7 c1Q Rbc2 Qf4 Qde6 Rd2 Qh6 Nd4 Ba4 Nb5 Qc6 Qfc4 Qb7 Qgh8 Qa6 Qf7 Qg3 Bc1 Ne6 Ba3 Bd6 Qb8 Nec7 Nc6 Qf4 Qbf8 Qe4 Qf7g8 Bf4 Qff7 Qe5 Nd8 Rc1#
rqb2K1R/3P2r1/N4b1n/B1R4B/1n1r1NNq/b3Q1k1/3B1qr1/1rQB1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Qd6 Kf3 Kd7 Kg4 Ke6 Kg5 Ke5 e4 f5 g4 c5 b4 a5 d3 h5 b6 a4 b5 a3 b7 f3 b6 f4 Ne2 h3 Qb3 a2 Qb2+ c3 Bd2 c4 Na3 f2 Nc2 h4 Rc1 h2 Ne3 a1R Qc2 Na6 b8N f3 b7 Rb1 Qd1 Qc7 Kg6 h3 g5 Be7 Kf7 Qd6 g6 c2 Ba5 c3 g7 Nb4 Na6 Rh4 b8B Bf6 Qd2 Qc7+ Kf8 Rg4 Ba7 Qb8 Qd1 Rg2 d4+ Ke6 Qe1 Kd6 d5 Ke5 Rg1 h1R d6 h2 d7 Rg6 Rg3 Rg1 Rh3 h1Q Rh8 Nh6 g8B Qh4 Bf7 Rg7 Bh5 R1g4 Bg2 f1R B7b6 f2 Bf3 Rg2 Qd2 Rd1 Ng4+ Ke6 e5 Kf5 Qe1 Kg5 Bc7 Rd4 e6 Kf5 e7 Kg5 Rd1 c1Q e8Q Qc2 Rc1 f1Q Bf4+ Kf5 Qd1 Qd2 Qe7 c2 Be3 Qde1 Bd2 Qef2 Qe3 Rb2 Ra1 c1B Ra2 Rb1 Rc2 Bb2 Qc1 Ba3 Rc5+ Rd5 Ne5 Rd4 Nf4 Kg5 Bd1 Kf5 Qb3 Kg5 Ne2+ Kf5 Ng4+ Ke4 Qe6+ Kf3 Nf4+ Kg3 Qe3+
1R3R1q/1PKQb1qn/kQ2q1q1/BRn3r1/B1b1rrN1/n1r3r1/6NB/1B6 b - - 0 1 illegal: No possible last move, all moves rejected
nk2QB2/rb6/1B4N1/1r5q/B5nr/R2Nn1R1/bP1b1bqB/KQ2qqQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 c4 f5 Kc2 d5 h4 Kd7 e4 Kc7 h5 g5 e5 f3 e6 f2 e7 f4 e8Q g3 h6 g4 h7 a4 c5 f3 c6 d3+ Kc3 g2 Qg6 g3 Qe6 d2 Qee2 d4+ Kc2 a3 Rh4 a2 Rh1 d3+ Kc3 Ra7 Qee1 Qd5 Qe8 Nf6 Ne2 g1B Na3 g2 Nc2 Bh6 Nf4 Ng4 Rh3 Na6 Ne1 Bb7 Rg3 Qf7 Qc2 d1B Be3 d2 Qf5 Be2 Kc2 d1N Qc5 Qd5 Ng6 Qg5 Qe4 Bc4 Kc1 Kc8 c7 Qe5 Bd3 f1R Bc2 f2 Ba4 Qg5 Kc2 Qh4 Bd4 Bd2 Bg7 Qh1 Bf8 Be6 Qe2 Qh6 Nd3 Re1 Qf1 Re5 Qe1 f1Q Qb6 Bge3 Qd4 g1Q b6 Rb5 Qc5 Qgg2 Qd4 Bbd5 b7+ Kd7 Qc5 Bg8 Qd4 Kc6 c8Q+ Nc7 Qd8 Na8 Qe8+ Kc7 Qc5+ Bc6 Qd4 Bf4 Qg1 Bfe3 b8B+ Kb7 Rh3 Bf2 Bh2 Bgd5 Rg3 Kc7 Rb1 a1Q Rc1 Bb7 Rb1 Qa3 Ra1 Nde3+ Kb1 Qb3 Ra3 Qd1+ Nc1 Ba2+ Ka1 Qde2 Nd3 Qhh3 Qb1 Qee1 Qf7+ Kb8 Qd7 Rg8 h8B Qh6 Bf6 Rh8 Bd8 Qg5 Qf7 Rh4 Qe8 Qh5 Bb6+
Qq2r2q/4R2b/NB2qn1k/Nr2nr1N/5q2/1RNrP1bB/8/K1nQRb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 b4 Kf7 g4 Kg6 c4 d5 Kc2 h5 Kb2 a5 b6 f3 b7 h3 g5 f4 c5 h4 c6 d3 c7 h2 b5 a4 e3 h3 b6 d2 Qb3 d1Q Bc4 d4 Qb5 a3+ Ka2 f2 Bf1 d3 Qa5 f3 Qa6 d2 Bb5 f1Q Ne2 f2 Ng1 Rh5 Bd7 Qg4 Nf3 d1R Qe2 Nc6 b8R Nf6 b7 Bd6 Nc3 Bg3 Bd2 Ne5 Nd4 Qe6+ Nb3 Qde8 Be1 Rd3 Qd1 Q8g8 Rg1 h1Q Rc1 h2 Ka1 a2 Na5 Kg7 g6 Kh6 g7 Rf5 Rb1 Qh8 Rb3 Qf3 Bd2 h1R Be1 Qf4 g8N+ Kh7 Bd2 Rhh5 Rh1 Qh3 Re1 Qe8 Be6 f1B Bd7 Qhg4 Be6 Bd7 c8Q Bc6 Qd8 Be4 Rc8 Qb5 b8N Kg7 Na6 Qb8 Rc7+ Kg6 Ne7+ Kh6 Ned5 Qgg8 Bc8 Qe6 Re7 Rhg5 Bc1 Rh5 Ba3 Rhg5 Bc5 Rh5 Kb2 a1N Bb6 Rhg5 Ndc7 Rh5 Ne8 Rhg5 Ng7 Rh5 Rb5 Nb3 Qf8 Nc1 Rb3 Qb7 Bd7 Re8 Ka1 Qb8 Qg8 Rh2 Nh5 Rb2 Ra3 Rb5 Rb3 Rg5 Bc8 Bh7 Bd7 Qf7 Bg4 Rf5 Bh3 Qg6 Qd5 Qf7 Qh1 Qe6 Qa8
NR1rrB1q/3b4/B2bNR2/1kbqQ1Q1/bnq1rRKP/2Qn1n1r/5Q2/8 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 e4 a5 b4 f5 c4 d5 b6 Kd7 c5 Kc6 e5 a4 b7 d3 e6 g3+ Kf3 a3 h3 a2 e7 g4+ Kg2 d2 e8Q+ Nd7 b8Q d4 Qe7 d3 Qe8 Bd6 Qee2 Ne5 Na3 Nf6 Rb1 a1Q Rb3 Nd5 Qa7 Bd7 Nc4 Kb5 c6 Qaa5 Qde1 d1B c7 d2 c8Q Nd3 Q2f2 Qh4 Qcc7 Rae8 Nf3 Qh7 Rb2 Ba4 Nb6 d1R Qec3 Qh4 Ng5 f3+ Kg1 f4 Ne6 g2 Kh2 g1N Bg2 Re1 Na8 Re4 Qae3 Rd8 Ra2 Rhe8 Ba3 Qh7 h4 Qh8 Qfd2 f2 Qf3 f1Q Qff2 Be7 Q7e5 f3 Kg3 Bd6 Qg5 Qe2 Ra1 Qa2 Rf1 Qc4 Qa2 f2 Rh2 Nf3 Bh1 Ka6 b5+ Ka7 b6+ Ka6 b7 N5b4 b8R Qad5 Rg1 f1R Rf2 Rb1 Rgf1 Rb3 Qad2 Nd4 Rf8 Nf3 Rf6 Ka5 Qf2 Ka6 Kg2 g3 Kh3 g2 Rf4 g1B Kg4 Nc2 Bc5 Ncb4 Bg2 Bc7 Bf8 Bd6 Qg3 Bd4 Qf2 B4c5 Qfd2 Ng1 Rb1 Re3 Rf1 Qde4 Qcc1 Rb2 Qcc3 Rh3 Bh1 Qed4 Bb7+ Kb5 Re4 Qdd5 Rf6 Nf3 Qf2 Re2 Ref4 Re4 Ba6+
1b1r4/1K1NRQN1/n2Q2q1/rk1r1RnB/2bbnq1P/1b6/3qr2B/Q3NN2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 b4 f5 c4 a5 e4 d5 h4 Kd7 b6 Kc6 b7 d3 c5 d4 e5 a4 e6 f3 e7 d2 e8N d3 Ke3 g3 Ne2 g4 Qe1 d1R Rg1 d2 Rg2 f4+ Ke4 a3 Bb2 f2 Bc3 a2 Bb2 f3 Bf6 Be6 Nc1 Bd6 Be5 Ra5 Be2 f1B Nd3 f2 Ng7 Na6 b8N+ Kb5 c6 Bb3 Nd7 Bb8 c7 Nf6+ Kd4 Rg8 c8Q Ne4 Qc7 Re8 Rg1 g2 Bh2 g3 Bh5 Be2 Rf1 g1Q Qf4 g2 Qf7 Rc1 Qd1 Rc8 Ne1 Bec4 Qc1 d1R+ Nd2 Re6 Rb1 a1B+ Qc3 Ka4 b5 Re5 b6 Kb5 b7 Qg5 Rc1 Rd8 Rb1 Qg6 Qb2 Qh1 Rc1 g1N Rc3 Ree8 Re3 Nh3 Qc3 Nhg5 Qb2 Nc3 Re7 Qg2 Qa3 Bb2 Qa1 Nce4+ Ke3 Ba7+ Kf4 Bbd4 b8Q+ Bab6 Qd6 Bc7 Ne6 Bb8 Ng7 Bda7 Ke5 Be3 Rh1 f1Q Rg1 Qff3 Nf1 Qd2 Rg2 Bea7 Rf2 Bb6 Qe6 Qf8 Rf5 Bf2 Qf7 Bfa7 Ne3 Bd4+ Kf4+ Nec5 Rd5 Qc3 Re6 Ba7 Qf5 Bb8 Nf1 Bg1 Qf6 Rd4+ Ke5 Qd2 Qe7 Qff2 Qf7 Rd3 Qc7 Re7 Kd6 Qff4+ Qe5 Kb4 Kc6 Bf2 Qb2 Rd4 Rf5 Rd5 Qa1 Bd4 Qd6 Ree8 Ref6 Re4 Re6 Re2 Qd1 Ka4 Re7 Nce4 Kb7 Kb5 Qa1
B5RB/qb1rR3/1Q1R2bn/bqn4R/1N3NnP/1qQ2r2/kBr5/3K2nb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 g5 h4 f5 b6 a5 b7 d5 c5 g3 e5 f3 b5 d3 b6 g2 c6 f4 c7 d2+ Kf2 g4 Ba6 a4 Nc3 a3 Ra2 d4 Bb2 d3 Nge2 g1R Rh2 Nd7 b8R Rh7 b7 Qe8 Nb1 Kd5 e6 Bb4 e7 Nh6 Qc2 d1Q Bf6 d2 Bd4 Ba5 Qb2 Qb3 Qc1 d1B Rc2 a2 Rc3 a1Q Bd3 Nc5 Qc2 Rg2+ Ke1 g3 Na3 f2+ Kd2 f1B Be5 f3 Bh8 f2 Qb2 Qeb5 e8R Rd7 Re7 Bc2 Rh1 Bb1 Nc2 Ra6 Rg1 Rf6 Kd1 Rf3 Bf5 Qaa3 Rd3+ Kc4 Be4 Rh2 Bc6 Bg2 Rd6 f1N Nf4 Bh1 Ra8 g2 b8B Ba6 c8Q Bb7 Qc7 Qaa4 Qb6 Qaa3 Bc7 Qa1 Rg8 Ne3+ Kc1 Qaa2 Nb4 Neg4 Rge1 g1N R1e5 Rc2+ Kd1 Qaa4 Qc1 Kc3 Qe3+ Kb2 Qc3+ Ka3 Rh5 Ba6 Ba8 Bb7 Nc6 Ka2 Rdd5 Qa6 Bce5 Qa7 Rd6 Qab5 Nb4+ Ka3 Qd4 Re2+ Kc1 Bg6 Qe3 Rc2+ Kd1 Bh7 Ba1 Bf5 Qc3 Bg6 Nbd5 Ka2 Bb2 Bh7 Re4 Bf5 Re7 Bg6 Nb4+
n2BNknr/4bb2/4qrN1/5qB1/Bn3P2/3bb3/Rq1Q1NK1/qr1QRB2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 d5 g4 a4 c5 h3 g5 a3 b6 h4 b5 d3 c6 a2 b7 d4 b6 d2 g6 d3 c7 e3+ Kf3 e2 g7 e1B Qc2 d1B+ Qe2 d2 Bb2 h2 Bc3 e4+ Kg2 e3 Bf6 h3+ Kf3 Qe7 Bg5 Bb3 Qc4 d1R Qc1 e2 Qc5 Bf2 Qc6+ Nd7 b8Q Qe6 b7 Ra6 Qd6 Be7 Nc3 Nb6 Ne4 Na8 Qd2 Be3 Nf2 e1N+ Kg3 Nc2 Nf3 Re1 Ne5 Nb4 Ng6 Rb1 Qa7 Qf5 b8B Bf7 Qad4 Rf6 Kf3 Ba6 c8N Bd3 Bc7 Qe6 Bd8 Qf5 Rg1 h1Q+ Rg2 h2 Nd6+ Kd7 Kg3 Ke6 Rg1 Qb7 Ne8 h1Q Qd1 Qbb5 Qd2 Qh5 Kg2 Qe2 Qd1 Qa6 Qc3 Qb2 Qcd2 Nh6 g8B Qc4 Bh7 Ng8 Be2 Kd7 Re1 Qce6 Bf1 Rc1 Rb1 a1Q Re2 Qa4 Ra1 Rb1 Ra2 Qaa3 Re1 Qa1 Q2c1 Q3b2 Qcd2 Qc5 Nd6 Bc4 Nh4 Qce5 Be4 Q5f5 Ng6 Bb5 Bc2 Bd3 Nb5 Ke8 Ba4 Nc6 Ne5 Kf8 Nd6 Nb4 Ne8 Qc2 Nf3 Qcc3 Ne5 Qcb2 Ng6+
nb6/1BNK3n/NrRb1r2/2P1Q1B1/b3n3/1kBQ1B2/r1N2rq1/qRq4b b - - 0 1 illegal: No possible last move, all moves rejected
r1Qkb2B/8/3n2q1/1PBKb1q1/2n2R1n/qRB2RqB/rNQ1Nb1n/r7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 a5 c4 g3 h4 g2 c5 g4 h5 a4 c6 f3 b6 a3 h6 f2 b5 f4 c7 f3 e5 g3 e6 a2 b7 Bg7 e7 Nd7 b8B Nc5+ Kc2 d3+ Kd2 d4 h7 Nh6 Ba3 Bd7 c8R Nf5 Bb2 Ne4+ Kc1 d2+ Kc2 d3+ Kb3 Nh4 Kc4 Be5 Rc7 Nd6+ Kc5 Bc6 Nh3 g1B Qc2 d1R Ra7 g2 Bc3 d2 Bc4 f1N+ Nf2 Ne3 Bg8 Nec4 Ra4 Rf1 Bd5 d1Q Ba7 Qd3 Be6 Qg6 Bh3 Bd7 Kd5 Qb8 Ng4 Bf2 Bc5 g1Q Ne3 Q1g5 Nd1 Rf8 h8B Rf4 Be6 Rg4 Rh3 Rg2 Nb2 Re1 Nd2 Rc1 Rb1 a1Q Nb3 Qa3 Nd4 Rf1 Re1 Qc7 Re3 Ra1 Rb4 Bfg3 Re4 Qc8 Qd2 f2 Na4 f1N Rb3 Be1 Rf4 Nh2 Rhf3 Rf2 Qd3 Rfa2 Nb2 Bf2 Qc2 Qg2 Rf6 Qd8 Ne2 Q2g3 Bh3 Qda5 B3d4 Qd2 Rf7 Qdg5 Bc3 Bf5 Rf8+ Kd7 e8Q+ Kc7 Rf7+ Bd7 Qe6 Kd8 R7f4 Be8 Qc8+
K1n2b1k/Q4rnN/1Q2bPB1/4R2B/1b1qB2r/1Qq2qB1/1N1R3r/r2n2n1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 c4 Kg7 f4 e5 g4 d5 b4 a5 g5 h5 b6 h3 b7 e3 Kf3 a4 b5 e4+ Ke2 h2 b6 h4 f5 a3 g6 a2 c5 h3 c6 Nh6 c7 Qf6 Nf3 Be6 c8B Nc6 b8Q Ra7 b7 Ne7 Nbd2 Qe5 Rg1 h1Q Rg5 h2 f6+ Kg8 g7 Nhf5 Bd7 Rh4 Qb3 Nc8 Nc4 Qg1 Rb1 h1R Rb2 a1R Bg2 R1h2 Be8 Kh7 g8B+ Kh8 Ra2 Ng7 Rd2 Qc7 Nb2 Qc3 Bh5 Qf2+ Kd1 d3 Bgf7 d4 Re5 Qg3 Ng5 Qf3+ Ke1 e2 Qb6 Be7 Qa8 Bf8 b8Q Rb7 Bfg6 Rf7 Bf5 Qh3 Kf2 e1N Qaa6 Nf3 Nh7 Ng1 Bfg6 Qf5+ Kg3 e3 Qaa7 e2 Be4 Qf1 Qb3 Qd1 Q8b6 e1B+ Rf2 Qe2 Bf4 Bd2 Rg2 Qg4+ Kf2 Qd1 Bg3 Be1+ Kf1 d2 Re2 d3 Rf2 Rh1 Kg2 Qg4 Re2 d1Q Rc2 Bd2 Kf2 Be1+ Ke3 R1h2 Rd2 Qcc1 Kd4 Qdf3 Rf2 d2 Rg2 d1N Rd2 Bd7 Kd5 Qcc3 Qc5 Be6+ Kc6 Ne7+ Kb7 Nc8+ Ka8 Qgf4 Rd8 Q4e3 Qd6 Qcd4 Qc5 Bb4 Qb6 Qdc3 Rd3 Qed4 Rd2
1rQQ2N1/1nr2N2/b3nP2/B3q2r/Kbn4q/bBB1R1R1/1k1B1N2/nqr5 b - - 0 1 illegal: No possible last move, all moves rejected
2n2NN1/Pbqk4/2n2BBq/2b5/n1r1bRBb/1R2R2q/2Q1Rrr1/q1Q1K3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 b5 e4 h5 a4 f5 g4 c5 g5 f3 a5 f2+ Ke2 b3 a6 h3 g6 f4 d6 b2 a7 b4 e5 h4 e6 h2 g7 b3 d5 f3+ Kd2 h3 e7 c4 Ra2 Bb7 Bg2 f1R Ne2 f2 Nd4 Qc7 Ne6 Kd7 e8R Ne7 g8B Nbc6 Be4 Rh4 Bg6 Nc8 Nc3 b1B Bb2 Be4 Qc1 Rg4 Rg1 h1Q Rg3 h2 Re3 Rg2 Ra3 Rb8 Ba1 b2 Rb3 b1N+ Ke2 Bc2 Ne4 Nc3+ Kd2 Na4 Bf6 Qg1 B8h7 h1Q Bh5 N6e7 Bg4 Qh6 Bg6 c3+ Ke2 Qc5 Qe1 Qgh2 Bd4 Qc7 Rf3 Bc6 Rf4 Q2h3 Bh8 Rb4 N6g5+ Nf5 Re6 Bb7 Nf6+ Kd8 d7 Qg3 Ng8 Qgh3 Re3 Be4 Bf6+ Nfe7 Qa1 c2 Kd2 Qc4 Re2 Kc7 d8R Qc5 Qd1 Rc4 d6+ Kc6 d7 Qe5 Bf7 Qc7 Ne6 Kd6 Rbe3 Nc6 Bg6 Be7 Bb2 Bh4 Bf6 Qb8 Rb3 Qc7 Ree3 c1B+ Ke2+ Bd5 Qc2 Ba3 Kd2 Be4 Re2 Ncb6 Rbe3 Bc5 Ra8 Ba6 Rb8 Nc8 Rb4 Bb7 d8Q+ Qd7 Qb6 Qc7 Rb1 Kd7 Qbb2 Re1 Qa3 f1Q Rbb3 Qfh1 Qab2 Rf1 Qa1 Rf3 Qab2 Qb1 Qbc1 Rff2 Ke1 Qa1 Nf8+
b1q1QK1Q/nr2nBQ1/1B1k4/4NRb1/2RQb1nb/3n1P1N/2B4n/2n1r2r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 d5 b4 Kd7 c4 h5 c5 e5 b6 h3 b5 e3+ Kd3 e4+ Ke2 h2 g5 h4 c6+ Kd6 c7 d3+ Ke1 d4 g6 a4 b7 a3 b6 h3 g7 e2 Kd2 e1R Qf3 a2 Bg2 Be7 Qf7 Nc6 b8Q Bf5 b7 Qc8 Bf1 Ra7 Ne2 Bg5+ Nf4 Nge7 g8B Bh7 Rg1 h1N Rg4 h2 Na3 Ng3 Qg7 h1B Bf7 Bf3 Rb1 a1N Rb5 Bf5 Qa8 Rh1 b8Q Rb7 Qa4 Na7 Be2 Bg6 Bd1 Bh7 Bb2 Bg6 Rf5 e3+ Kc1 e2 Kd2 Be4 Bc2 Bh5 Rh4 Bhf3 Bc3 Bg2 Ba5 Bgf3 Bb6 Bg2 Bb1 Bgf3 Qd1 Bg2 Bc2 Nf1+ Kc1 d2+ Kb2 d3 Kc3 Bgf3 Kd4 Nh2 Nh3 Nb3+ Kc4 Nc1 Kb4 Bc6 Rc4 Bfe4 f3 Bcd5 Bb1 Bc6 Qa4 d1N Bc2 d2 Qa8 Qe8 c8Q Ne3 Qd8+ Qd7 Qdh8 d1N Qae8 Qc7 Nb1 Nf2 Nd2 Bcd5 Qaa1 Qd8 Qad4 Qb8 Nb3 Qd8 Nc5 Qc8 Nd7 Neg4 Ne5 Nfd3+ Ka5 Rb8 Bc5+ Kc7 Qf6 Ba8 Qfg7 Ng8 Ka4 Rb7 Ka3 Rd1 Ka4 e1B Bb6+ Kb8 Ka3 Beh4 Ka4 Nf4 Kb4 Rde1 Rc7 Nfd3+ Kc4 Nb4 Kc5 Nbd3+ Kd6 N8f6 Ke7 Nd5+ Kf8 Ne7 Qhh6 Nb2 Rc4 Nbd3 Bc5 Kc7 Qhh8 Na2 Bd5 Nac1 Bb6+ Kd6 Bf7+
rr3nR1/4br1B/b4r2/b3bbqk/2b1R2B/2RnP1Q1/3NKQ1q/1N1Q3R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 d5 c4 f5 b4 Kf7 h5 a5 b6 g5 h6 Kg6 b7 f3 b5 a4 c5 f2+ Kd2 g3 h7 g2 c6 d3 c7 d4 b6 g4 Rh4 a3 Bb2 g3 Qb3 a2 Kd1 d2 Qa3 f4 Qc5 f3 Ba3 Na6 b8Q Qg5 b7 Nf6 Re4 Nb4 Qd6 Be7 Qd8 Kh5 Rf4 Nd3 Bb2 Bf5 c8Q Nd7 Na3 Nf8 Rc1 a1B Nh3 g1Q Qc5 g2 Qca7 Qh2 Rc3 g1B Nb1 Rg8 Bg2 f1B Re4 f2 Qg3 Rg7 b8R Rf7 Rb6 Rb8 Rg6 Rf6 Rg8 Rf7 Kc2 d1R Bc1 Ra8 Be3 Rc1+ Kd2 Rc2+ Kd1 Rb2 Bd2 Rbb8 Be1 Nc1 Qd5 d3 e3 d2 Qaa2 Bc4 Qd4 f1R Nf2 Nd3 Ke2 Ba6 Qda4 Bb2 Qd1 Bba3 Qac2 Bab4 Bh3 Ba5 Qb2 Be6 Bf5 Bec4 h8R+ Qh6 Bh7 Qg5 Qb6 Rf6 Qbd6 Rf7 Qg2 Rf6 Qdg3 Rf7 Ng4 R1f6 Ne5 Bf2 Nf3 Bg1 Qf4 Bf2 Qe5 Bg3 Qd6 Be5 Bh4 Bc8 Qf2 Bf5 Qg1 Ba6 Qg3 d1B+ Kd2 Bc2 Ke2 Bb3 Nfd2 Bbc4 Qd7 Re8 Qa4 Rec8 Qd1 Rcb8 Qb3 Qg1 Qd1 Qf4 Bg5 Qh1 Qgg1 Qg2 Bg6+ Kg4 Rh1 Qg3 Bh7 Qg2 Bh4+ Kh5 Nb3 Qfg5 N3d2 Qh2 Qg3
3Rrqn1/kn1N3b/Qr6/3rbR1r/3QbQb1/qrP1NB2/1BQ5/1K1N3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 e4 Kd7 b4 Kc7 g4 Kb7 g5 h5 g6 a5 c3 f5 Kc2 h3 e5 a4 e6 h2 b6 d3+ Kb2 h4 g7 a3+ Ka2 h3 e7 d4 e8Q d2 b5 d3 Qe5 f3 Qc2 d1R Qe8 f4 Qd2 f2 Qee3 f3 Qf4 Na6 Be2 f1R Qc2 d2 Qg6 f2 Bh5 Bd6 Qd4 Bf5 Bb2 Be5 Bf3+ Be4 Qe6 Qf8 Qf6 Kb8 b7 Bh7 Qc6 Nc5 Qa6 Kc7 b8N Nb7 Nd7 Re8 b6+ Kc8 Kb3 a2 Na3 Rb1 Nc4 Rfd1 Ne3 f1R Bg4 Rf5 Kc2 Re1 Bf3 d1B+ Kd2 Be2 Kc2 Rf6+ Nf5 Rg6 Ne3 Rbd1 Rb1 a1Q Rc1 Rd3 Rd1 Qaa3 Kb1 Rge6 Bg2 Bg4 Bf3 Ne7 g8Q Rg6 Qb3 Ng8 Qd6 Rd5 Qc2 Re2 Qb4 Red2 Qbe4 R2d4 Rf1 Rb4 Qd4 Rge6 Be4 Rbb5 Rf5 Rb3 Bf3 Rc6 Nd1 Rf6 Ne2 Rfd6 Rf1 h1R Nf4 h2 Ng2 Rh6 Nge3 Rc6 Nf6 Kb8 Rg1 Na5 b7 Rcb6 Qf1 Ka7 Nd7 Bg6 Rg2 Rh5 Rd2 Bh7 Rd3 Rg1 Rd2 h1B Rd3 Bg2 Qfe2 Rgh1 b8Q+ Ka6 Qd6 Ka7 Qh6 Nb7 Qhf4 Na5 Qf1 Nb7 Be4 Nh6 Qc5 Qh8 Nf8 Rdd8 Rd5 Qf6 Qd4 Ng8 Qfe2 Bf1 Qb5 Bd3 Bf3 Be4 Qbd3 Rc8 Rd7 Rc5 Rd8 Rd5 Nd7 Qff8 Qa6+
2r2rnb/2q1BQ1b/B4n1k/3r1b2/n1QbP2R/1K1Q1rN1/2Q4N/rR1Bn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 c4 Kf7 Kc2 Kg7 g4 h5 c5 a5 b6 h3 e3 a4 b5 d3+ Kb2 d4 b7 h2 c6 d2 b6 d3 c7 h4 g5 f3 g6 f4 Qe2 d1R Qf2 d2 Bb5 h3 Na3 Bf5 c8Q Bc5 Nc4 a3+ Ka2 Bd4 Qg2 f2 Qgc6 f1R Na5 f3 Qc4 f2 Nc6 Qc7 Ba6 Kh6 g7 Nd7 b8Q Ndf6 Kb3 a2 Rb1 a1B b7 Rfe1 Nf3 f1R Qd8 Bh7 Qa7 Rc8 b8Q Bf5 Nfe5 Rf3 Ba3 Rg1 Ne7 Rgf1 Rg1 h1B Rg4 h2 Qbb5 Bg2 Qc2 h1N Qbc4 Nf2 Qd6 Nd3 e4 Bh3 Qd7 Bh7 Nf5+ Kh5 Ng3+ Kh6 Rf4 B3f5 Be7 Bab2 Qdb5 Ne1+ Q4d3 Rh1 Qbc4 Rh5 Rg4 Rc1 Rf4 d1N Rh4 Nc3 Qb7 Na4 Ng4+ Kg5 Nh2 Bbc3 Rb2 Ra1 Rb1 Kh6 Ba3 Ne7 g8B Bb2 Be6 Rhf8 Bd5 Neg8 Be7 Ne8 Bc6 Bh8 Bcb5 Nef6 Qbd5 Bc3 Qf7 Bd4 Bd7 Bfg6 Bh3 Bf5 Bg4 Bd7 Bh3 Rf5 Bf1 Rf3 Be2 Bh3 Rf4 Rd5 Bd1 B3f5 Rh4+
1K4R1/B2k4/1bbrb3/B1rRNN1q/R2P4/b1BQqB2/rn4b1/n4rQb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 h5 g4 a5 e4 a4 d3 a3 e5 h3 e6 c3 b6 c4 g5 a2 g6 h2 g7 c2 b7 c3 b5 h4 e7 h3 b6 Nc6 b8B Na5 b7 Be6 Bd6 Nc4 b8B Rh6 Bbc7 Nf6 g8R Nb2 Bd2 c1Q Ba3 c2 Bda5 Kd7 Nd2 Ng4 Rb1 a1B Qe1 Ne3 Bc5 Qe8 Bc3 Ra2 Ne2 Qd1 Nc4 c1R Qg3 Nc2 B7a5 Rg6 Rg1 h1B+ Bg2 h2 Ba7 Qd2 Rd1 Rh6 Qg4 Qh5 Nd4 Qe1 Rd2 Qe4+ Kf2 f3 Kg3 f2 Bf3 f1R Qg7 Qe1+ Kf4 Qf2 Ke5 f4+ Nf5 Qe3+ Be4 f3 Qg1 f2 Rd1 Na4 Rb4 Nb2 Ra4 Bf3 Rd2 h1B Rd1 Re1 Rd2 f1B Rd1 Bf1g2 Rd2 Ke8 Kd6 Rf1 Kc7 Rf6 Ba8 Bc6 Kb8 Kd7 Bb7 Nd1 Ba8 Bb2 Bb7 Na1 Ba8 Ba3 Ne5+ Ke8 Bb7 Nb2 Ba8 Bb5 Bf3 Bc6 d4 Bc5 Re2 Bb6 Re1 Bed7 Re2 Rd6 Rc2 Be6 Rf2 Nc4 Rb2 Rc2 Rb5 Nb2 Rd5 Rcc1 Bd2 Rc4 Bdc3 Rc5 Ng6 Kf7 e8Q+ Kf6 Qc8 Kf7 Qa6 Ke8 Qb5 Kd7 Qd3 Rb5 Re5 Rdd5 Nf4 Ba3 Ng6 Rd6 Rd5 Rc5 Ne5+
8/3n2R1/KB1b2N1/n2bQBPk/1Nn1b3/r3Qnb1/rRR2qr1/Q2r1b1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 Kd3 f5 Kc4 Kf7 b4 Kg6 e4 h5 g4 d5+ Kb3 h3 Ka4 d3 c4 h4 b6 h2 Kb5 d2 c5 h3 e5 a4 c6 f3 g5 a3 b7 f2 c7 f4 e6 f3 e7 a2 e8R d4 Bd3+ Bf5 c8R f1B Re5 f2 Rcc5 Ra3 Qb3 d1R Rc2 Be4 Rd5 Bd6 Rc7 Nc6 b8Q Nf6 Nd2 Nd7 Ngf3 Qf8 Nh4+ Kh5 Nb1 Na5 Nc3 Qf6 Rb1 a1B Qa7 Ra8 Rb2 Bg3 Rg1 h1B Rdc5 h2 Be3 Bd5 Rb7 Bhe4 Na2 h1R Rcc2 Rh2 Rh1 Rg2 Qa4 Bd6 Ka6 Qf7 b5 Qf6 Bc4 d3 b6 d2 Nb4 Qf4 Bd3 Qh2 Rb3 Bae5 Ng6 Bg3 Rbb2 Rf8 Rb3 Rb1 Rc5 d1N Bb5 Bc2 Rb8 Ne5 b7 Nb2 Rbc3 Rb3 Qa2 Rd1 Rbc8 Ra3 R5c7 Be2 Bd3 f1N Nc6 Nd2 Qa1 Rff2 Rb3 Bf1 Rg7 Rg1 Qc5 Re2 Bf5 Ndf3 Rb4 Nd7 b8Q Be7 Bd4 Bce4 Qe5 Bd6 Qcc1 Rc2+ Rb5 Re2 Qe3 Rf2 Bb6 Rc2 Bh3 Qf2 Rc7 Re2 Rb3 Rg2 Nb4 Red2+ Rc4 Re2 Rcc3 Nbc4 Bf5+ Bh4 Rc1 Rb2 Rc2 Rba2 Bh3 Bg3 Rbb2 Bf4 Be6+ Bh2 Bh3 Bg3 Bf5+
6Br/qR6/P4RRb/1rn2Qn1/1Qr1nQ1r/rN2n2R/k2B4/bbN1Kb2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 e4 Kd6 a4 f5 g4 c5 a5 h5 g5 b5 g6 b3 g7 h3 Qd3 h2 Be3 h4 Bc1 h3 Kf2 f3 Ke1 c4 Nd2 b4 Qc3 f4 Qc2 c3 Ba6 f2+ Ke2 f1N Ndf3 b2 Ra2 b1R Ne1 b3 Rb2 f3+ Kf2 Qc7 Bd2 Nh6 g8Q Nf7 Qg5 Bh6 Ne2 Bf5 Bc4 Na6 Nc1 Nc5 Ned3 Qa7 Ke1 Ne3 a6 Ra1 Rb1 b2 Nb3 Rac8 Ndc1 Ra3 Qh4 Bg7 Qf4+ Be5 Rg1 h1N Rg2 h2 Rg6+ Ne6 Qd3 c2 Qc3 Rc5 Qb4 Ng3 Rf6 Ng5 Rg6 Kc7 d6+ Kc6 d7 Bf6 e5 N3e4 d8Q h1R+ Bf1 Rb5 Qda5 N6c5 e6 Kd5 e7 R1h4 e8R Bg7 Rf8 f2+ Ke2 Bh3 Rff6 Bh6 Bg2 f1R Bf3 Rf2+ Ke1 Bf1 Bg4 Rg2 Bd7 Rgg4 Be8 Nce6 Bf7 Bg7 Bg8 Bh6 Qe7 Kc4 d5 Nc5 Qd7 Bg7 Qdf5 Bh6 Bh7 Bg7 d6 Bh6 d7 Bg7 Nd3 c1B d8R Bh6 Rd7 Bg7 Ra1 b1B Rb7 Bb2 Ra2 Ba1 Ndc1 Bf8 Bb4 Bh6 Rh2 Rg2 Rh3 Rc2 Bd2 Rc3 Qb6 Kb4 Qc8 Ka4 Qbd6 Rc4 Bg8 Nce6 Qdc5 Nd1 Na5 Ne3 Qce5 N6c5 Qcf5 Rab3 Qc3 Ka3 Qb4+ Kb2 Qa4 Ra3 Nab3 Nd6 Ne2 Nde4 Qb4 Ka2 Nec1+
2b3bB/Q2kb1bN/q1Bnq3/1B2r2r/bb3R1P/1RnK4/2Q3b1/Nb2Q1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1N1n1k2/3q1r2/7b/rrrbbQ2/BQ2QnNn/1b2nqP1/1BR4K/R4R1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 e4 h5 b4 a5 c4 f5 e5 f3 b6 f4 b5 h3 b7 h4 e6 h2 g3 h3 c5 a4 b6 a3 e7 a2 c6 d3 c7 d2 Bd3 d4 Ba6 d3 Qe2 d1N+ Kf1 d2 Qf2 Bh6 Be2 Nb2 Nc3 d1Q+ Qe1 f2 Na4 Nd3 Bd2 Nc6 b8Q Be6 c8R Ra5 b7 Bb3 Rc1 a1B Bf3 Be5 Bd5 Qf3 Nb6 Rh7 Rc7 Rf7 Ra1 Rb5 Qa7 Qd7 b8Q+ Nd8 Bc3 Rf5 Be4 Kf7 e8Q+ Kg7 Qa3 Ne7 Ba8 Ng6 Qc5 Nh4 Bb2 Ra5 Qb5 Rh5 Qg6+ Kf8 Rc2 Rf5 Bc6 Rg5 Ne2 Rf5 Rg1 h1R Nc4 h2 Nd4 Qg4 Qa6 Qd1 Bb5 Bf6 Ne5 Bfg7 Ba4 Qh5 Qh7 Qhf7 Ke2 f1N Rcc1 Ne3 Qc6 Bc2 Ng4 Rfc5 Qce4 Be5 Nc6 Qff5 Ba3 f3+ Kd2 f2 Ke2 f1R Qb7 Qf6 Nb8 Qff7 Qb2 Rf6 Qbc3 Rb6 Qcb4 Bb3 Bb2 Rbb5 Rc2 Qff5 Qf1 Qf4 Qfg2 Qff5 Rge1 Rf1 Qh1 Rf3 Rf1 Qf4 Qeg6 Qe4 Qc6 Rf7 Qf5 Nf4+ Kf2 Qed5 Qf3 h1B Kg1 Qe4 Kh2 Qed5 Qg2 Qd1 Qg1 Be4 Qd5 Qf3 Qd3 Bc6 Qde4 Bcd5 Qh1
1kbQ4/1r1r4/Rn2NnR1/2Nr1n1B/2N1QB2/qrn1PB1K/3B1b1b/1q2b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 Kg2 f5 c4 d5 h4 Kd7 b4 Kc7 e3 a5 c5 d3 c6 d2 h5 d4 h6 d3 h7 a4 Ra2 g3 Be2 f3+ Kh3 g2 Qe1 d1R Bf1 d2 Nc3 g4+ Kh2 f4 Nce2 f2 Nd4 a3 Nh3 g1B+ Kg2 f3+ Kg3 Qe7 Nc2 Ra7 Be2 f1Q Ng5 f2 Rh6 Rb7 Bf3 Nd7 b6+ Kb8 b5 Ngf6 Rg6 Bh2+ Kh4 g3 Ne6 g2 Kh3 Qd3 Qh1 g1B Bh5 f1R Qe4 Rf5 Ra1 a2 Na3 Rg5 Nc4 Rd5 Bf3 Rg8 h8Q Bf2 Qhh4 Qea3 c7+ Ka8 Qh8 Bb4 Bh5 Rg7 Qd8 Qb1 Bf3 Rb8 b7+ Ka7 Bh5 Nb6 Bf3 Rgd7 Bh5 Rh1 Bf3 d1N Bd2 Nc3 Bh5 Ra8 b8N Ba5 Na6 Rb8 Nac5 Rb7 Be2 Rc1 Bf3 Rc2 Bh5 Rb2 Bf3 Rb3 Bh5 Rb8 Bf3 Ba6 c8B Rbb7 Bh5 Kb8 Qe7 Ra7 Bb7 Bb4 Bc6 Bc8 Qd8 Rab7 Qc2 Rf5 Bcf3 Rfd5 Qe4 Qd3 Re1 a1N Rc1 Nc2 Ra1 Nd4 Ra2 Nba4 b6 Nf5 Ra1 Qb1 Ra2 Rbc7 b7 Nb6 Ra1 Ka7 b8B+ Ka8 Na4 Rb7 Bf4 Ka7 Nc7 Kb8 Ne6+ Bd6 Nac5 Be1 Bg5 Bdg3 Ra2 Bgf2 Ra1 Qab2 Ra6 Qa3 Bf4+
4nr2/2r1Pq2/2n1Nqb1/QRrbB1RN/3q2b1/7r/q3Q1Nb/BBN1K2k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 b4 Ke7 c4 Kd6 g4 Ke5 e4 d5 b6 a5 g5 f5 c5 h5 c6 f3 g6 a4 c7 f4 b5 f2+ Ke2 f3+ Kd2 Kf4 g7 Kg3 b7 h3 e5 d3 b6 a3 e6 h2 Ra2 d4 Qa4 h4 Bb2 h3 Nc3 Nf6 g8N Ra7 Nb5 Rh5 Bc3 Nc6 b8B Rc5 b7 Bd6 Qb3 Ne8 Be2 Kg2 Rb2 f1Q Qa4 a2 Qc4 a1Q Nf6 f2 Nh5 Qa2 e7 Bf5 c8N Bg6 Qb4 Be5 Bd1 Qdd5 Bc2 Qfa1 Nc7 f1R Nb6 Rf8 Qa3 Qf7 Ne2 Qaf1 Bb1 Q1f6 Re1 h1B Qa5 h2 Nc1 Bg3 Kd1+ d2 Ne6 Bc7 Ke2 d1B+ Kd2 d3 Nd5 Bf3 Re5 Bg4 Ke1+ Kg1 Ne3 Bd5 Rb3 h1R Rg5 Rh3 Ba1 Bh2 Bbe5 Kh1 b8Q Rc7 Qbb4 Qf5 Qd2 Q5f6 Qe2 d2+ Kd1 Ng7 Ng2 Ne8 Qf3 Rh4 Ke2 Rh3 Rb2 d1Q+ Kf2 Qd4+ Ke1 Qb3 Qe2 Qa2 Rb5
b2R4/1qr2Q2/1N2nn1b/1bkN4/1Q2b2N/4p1r1/1QPB1RBK/qbn2qQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 g4 d5 f4 Kd7 Kf2 Kd6 Kg2 h5 f5 e5 b6 a4 b7 e3 f6 e4 b5 d3 b6 h3+ Kg3 d2 g5 h2 f7 h4+ Kg2 h3+ Kg3 d4 g6 d3 g7 a3 Nf3 e2 Bb2 e1N Nh4 e3 Nc3 a2 Ne2 Qc7 Bc1 Kc5+ Nf4 Nc6 b8Q Nd8 b7 Nf6 g8N Ne6 Rg1 h1B Rb1 a1Q Nf5 h2 Bb2 Ra7 Rg2 Bh6 Qg4 d1B Rf2 d2 Bg2 Nd3 Nge7 Rg8 f8Q Nc1 Nh4 Be2 Qf7 d1Q Bc3 Bb5 Nd5 Qf1 Bd2 Qd7 Qe5 Rg7 b8Q Rc7 Qb2 Rg8 Bh3 Be4 Bg2 h1B Kh2 Qc6 Qgg6 Qb7 Nb6 Bcd7 Qg4 Rg5 Qd1 Rg3 Nfd5 Bc4 Qe1 Bdb5 Qbg8 Ba2 Qg4 Ne2 Rd1 Bb1 Qg5 Nc1 Qf4 Qe2 Qg1 Qf1 Qg4 Bg6 Qa4 Be4 Qab4+ Kc6 Nf4 Qc8 Bh3 Bd5 Be1 Bhe4 Bg2 Qca6 Rd3 Qa8 Bd2 Qc8 Qa4 Kc5 Qa5 Bb7 Rd8 Ba8 Nfd5 Qb7 Qab4+
Q1rbn1q1/5b1r/2NB2n1/1q3b1k/n2RN2q/1RPRpBQ1/Q5R1/2K1n1n1 b - - 0 1 illegal: No possible last move, all moves rejected
1nq1RnR1/b1q5/1q2r1B1/Qq1rq2Q/r2bb3/1P1RQ1p1/3B4/k1NN2KR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kf6 c4 Ke5 h4 d5 b6 f5 b3 a5 c5 g5 b7 a4 h5 f3 h6 a3 h7 g3+ Ke1 a2 c6 g4 c7 f4 Be2 g2 Kf2 d3 Rh4 Kd4 e5 d2 e6 Bg7 e7 Bf5 e8R Be4 c8R Nf6 Na3 Nfd7 Ba6 Nf8 Rh5 Qc7 Rhe5 Kc3 Nc4 d4 Rb1 a1Q R8e7 d3 Qf1 d1Q Rg5 d2 Ne5 Qc2 Nh3 d1R+ Qe2 Rd5 Bb5 Ra4 Rd8 g1B+ Kf1 g3 Ree8 f2 Nd3 Qc8 Qe3 Bd4 Rd7 Rg8 h8Q Rg6 Qh5 Re6 Rg8 Ba7 Qee2 Qab2 Be3 Qc7 Nc1 Qa1 Qef3 Qb6 Kg2 f1Q+ Kh1 Qc4 Nf2 Qcc5 Bd3 Qcc7 Kg2 Qab2 Kf1 Qc8 Qe2 f3 Bd2+ Kd4 Qe1 Q2c7 Nd1 f2 Bc2 Qbc3 Qee2 Qe5 Qa6 Q3c7 Qa5 Bf5 Kg2 f1Q+ Kh1 Bh7 Bg6 Qfb5 Rd6 Na6 b8Q Bf2 Qb7 Nb8 Bf7 Bd3 Bg6 Bg1 Qc6 Bf2 Qd7 Bf5 Qf7 Be4+ Qff3 Be3 Ne2+ Kd3 Nc1+ Kc2 Ra1 Bd4 Rdd8 Bf5 Qe3 Bd3 Kg1 Be4 Ra2+ Kb1 Rc2 Qca6 Rc3 Qab7 Rd3 Qbc8 Rd7 Ka1 Rh7 Qf6 Qe2 Qff4 Rh1 Qfe5 Qh5
2b3r1/q1R3q1/1Nn1N1q1/kb1B1R2/N1Qb1N2/P1n3Q1/2nnnpK1/2Br2R1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 g4 b5 e4 h5 d4 f5 e5 c5 e6+ Kc7 g5 Kb6 g6 b3 d6 b4 g7 h3 d7 b2 e7 h4 e8Q h2 a3 b3 d5 h3 d6 f3 Qee1 c4 Bf4 c3 Bb5 c2 Ba4 c1N Qe7 Ne2 Bg3 f4 Bc6 Nh6 g8R Qe8 d8N Ng4+ Kf1 f2 d7 Ka5 Qc1 Qg6 Qf6 Bg7 Ba4 Nc6 Nc3 b1N Nf7 b2 Rf8 Rg8 Qh4 Bd4 d8N Ra7 Bb3 Rd7 Na4 Nbc3 Ne6 b1N Nd6 Rd8 Nf3 Qg7 Rg1 h1Q Ne1 h2 Rf6 Qe4 Nd3 h1Q Bd5 Qeg6 Rf5 Qf3 Qh3 Qe3 Kg2 Nd2 Ra2 Rd7 Rc2 Rdd8 Bh2 Rd7 Qg3 f1B+ Kh1 f3 Ndf4 f2 Nc4+ Ka6 Ncb6 Ka5 Qa1 Rdd8 Qa2 Rd7 Qc4 Rd6 Nc7 Qee7 Rc1 Ne3 Nce6 Nc2 Rh5 Bh3 Rf5 Bg4 Kg2 Qa7 Rf7 Bf5 Rc7 Bd3 Rce1 Nc1 Re5 N1e2 Rf5 Rdd8 Qa2 Bb5 Qc4 Rd7 Nh3 Nde4 Qg5 Ka6 Bf4 Be3 Qg3 Ka5 Bh6 Bc5 Bc1 Rdd8 Nhf4 Rd7 Nd8 Rd6 Bf7 Rd1 Bd5 Nd2 Nde6 Be3 Rg5 Bd4 Rf5
1bNBb1b1/1KNk1qNq/2n2Q2/3QrNr1/3b4/P2B1p1R/RBn3b1/1n1q4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 c5 Kf3 h5 Ke4 b5 g4 f5+ Ke5 b3 e4 c4 d4 b2 a3 f3 d6 c3 Kd5 f2 g5 h3 e5 c2 g6 h2 e6 b4 e7 h4 g7 b3 Bb5+ Bd7 Ba4 f1Q Qd3 f4 Nh3 Nc6 Bd2 c1B Qa6 Rh5+ Ng5 h3 Bc3 Be3 Nd2 b1B Ra2 b2 Bc2 Nh6 g8N Nf5 Ne6 Rg5 Nb3 f3 Bd3 Qd1 Qb6 Qc7 Kc5 Bf4 d5 Ne3 Nbd4 Bg7 Nf5 Bd4+ Kb5 Rb8 Ka6 Nc2 Qc5 Rb5 Neg7+ Kf7 Qb6 Be8 d7 Bg3 d6 Re5 d8Q Qd7 Nh5 Ke6 Qa8 Qc7 d7 Bf4 d8B Kd7 Nhg7 Bg3 Rg1 h1B Qab7 Bg2 Rh1 h2 Qa8 Qd6 Kb7 Qe6 Qaa5 Qf7 Qba6 Nb8 Qf6 Nc6 Qa8 Ne1 Qa5 Bc2 Qb5 b1N Bb2 Bb3 Qc5 Nc2 Qc4 Rc5 Qd5+ Bd6 Rg1 h1Q Rf1 Qh8 Rh1 Qh7 Rh3 Qe6 Qe4 Re5 Qd5 Bg6 e8N Qf7 Nge7 Bh5 Qa5 Bb8 Qa8 Qfg8 Nc7 Be8 Qa5 Qf8 Qb5 Bg8 Nc8 Qf7 Qd5+
r2r3b/8/1KNq1R1b/R2Nnrr1/B1bQ1Pn1/3rqqR1/1QRB1pk1/Q7 b - - 0 1 illegal: No proof kernel
3N1qrR/q1k2b1n/Q5NR/1R2Bq1n/b2P2pQ/1n4r1/2BR2bb/2bK2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 f5 d4 c5 h4 a5 b6 g5 e5 g3 b5 g2 h5 f3 h6 c3 b7 a4 h7 f4 e6+ Kc7 e7 c4 e8R a3 Nd2 g4 Re3 a2 Ne4 c2 Qd3 f2+ Ke2 f3+ Kd2 Nd7 b8R Bd6 Rh3 Ndf6 Qa3 c3+ Kd3 Qf8 Ne2 g1Q Qa6 Bd7 Rb1 a1Q Ng5 Nh5 Nf7 Bh2 Nf4 Ngf6 Re2 Rg8 h8Q Nh7 Be3 c1N+ Kc2 Nb3 Rd2 Be6 Bc4 f1B Nd8 f2 Ng6 Bg2 Bd3 f1B Kd1 Bf7 Bc2 Qf2 Rh4 Qf4 Bg1 Qf5 Qhf6 Qaa3 Rh3 Qac5 Qh4 Qa7 Rb2 Bc6 Rb1 Bfg2 b6+ Kd7 b7 Ba4 Rc8 Rb8 Rc6 Rc8 Re6 Rc6 Rb2 Kc7 Re8 Re6 Rb1 Re3 b8B+ Kd7 Be5 Rg3 Bg7 Kc7 Re6 Na1 Rb5 Nb3 Be5+ Kd7 Bd3 Ng5 Ne7 Ng7 Rd6+ Kc7 Qh6 Bc4 Qf6 Bf7 Rh8 Nh7 Qh4 Nh5 Re6+ Kd7 Rh6 c2+ Ke1 c1B Kd1 Be6 Bc2 Bf7 Bf6 Kc7 Ng6 Qa8 Bg7 Qa7 Be5+
2BN2r1/1Q2n1b1/4N2r/1rrR4/b1PQb2p/1RBrqBnq/K2Q3k/4n1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 a5 Kb2 f5 b6 h3 b7 f3 b5 h4 b6 d3 g5 d2 g6 Kf4 g7 Kg3 e5 d4 e6 d3 e7 h2 e8B a4 Bh3 f4 Bc6 f2 Nf3 f1Q Na3 Ne7 g8Q+ Bg7+ Kb1 Nd7 b8Q Qe8 b7 Rh6 Bb5 Ne5 Nd4 f3 Qe2 d1B Qd6 d2 b8B f2 Qf7 Bb7 Ba7 Be4+ Nac2 a3 Bc8 Qh3 Nc6 f1R Nd8 Rf5 Qd4 Nf3 Ka2 Ne1 Bb2 Rc5 Bc6 Rb8 Bc3 Rbb5 Rf1 h1N Qed3+ Kg2 Rf5 Ng3 Rd5 Kh1 Rb1 Kh2 Nb4 Bc2 Na6 d1R Nc7 Ba4 Rb3 Rd2+ Qc2 Rg2 Nce6 Rd2 Ka1 a2 Qd1 Rd3 Qd2+ Ng2 Kb2 a1R Bb6 Rg1 Ka2 Ng8 Qb7 Ne7 Qd1 Ne1 Qd2+ Rg2 Rh5 Bf5 Bf3 Be4 Rg5 Qf8 Rd5 Qf4 Bc7 Qg5 Bf4 Qe5 Be3 Qg5 Bf2 Qe3 Qc2 Rg1 Qd2 Ngf5 Nf4 Bf6 Qa7 Rg8 Nfe6 Bg7 Qb7 Ng3 Bg1+
bN3b2/1BKb2k1/qQ5q/n5r1/RrprnrN1/1RRQP1B1/3r2R1/2Q4n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 Kf7 g4 c5 b4 a5 d4 h5 d5 a4 b6 a3 e3 c3 b5 c2 b7 c4 g5 h3 g6+ Kg7 b6 h2 d6 a2 d7 h4 Bg2 h3 Bb2+ Qf6 d8Q c1R Q8d5 Rc2 Nd2 Rh5 Qc1 Nc6 b8R Na5 b7 Rg5 Qd3 Bd7 Nb3 Rd2 Nc5 Ra6 Bd4 Rb6 Na6 Rb4 Bb6 Qe6 Bc7 Nf6 Bd6 Ne4 Bc7 Kg8 g7 Qh6 Bd6 Kf7 g8R Kf6 Rc8 Kf7 b8Q Kf6 Rb1 a1Q Qb6 Qa4 Nb8 Qb5 Ra1 Qa6 Ra4 Kf7 Ne2 Kf6 Re1 h1B Ng1 h2 Nh3 Kf7 Nf2 Kf6 Ng4+ Kf7 Rh8 Kg7 Qd5 Rd4 Re2 Rd2 Rd8 Rd4 Rb2 Rd2 Rb3 Rd4 Ke2 f3+ Kf1 Nd2+ Kf2 Re4 Kg3 f4+ Kf2 Bb5 Qg1 Qh7 Ke1 f2+ Ke2 f1R Qf5 Rf3 Qc1 Rg3 Kf2 f3 Bf4 Qg6 Rdd3 Bd7 Rdc3 Rd4 Qd3 Rh3 Rh6 Qh7 Rf6 Qh6 Bd6 Rhh5 Kg3 f2 Be4 f1R Rf2 Bf3 Kf4 h1N Re2 Rh2 Bc7 Bf5 Ke5 Rhf2 Ba8 Bc6 Bd6 Ne4 Bc7 Rd1 Rea2 Rff1 Rg2 Rd2 Bd6 Bb5 Bd5 Bc6 Bc7 Ba8 Bb7 Bg6+ Ke6 Rf3 Bg3 Rf4 Qd6 Bh5+ Kd7 Be8+ Kc7 Bd7 Qb6
1N6/k1nKR3/1B1b4/2Rr2q1/1P1Rb1Br/r1r3n1/2bpnNB1/2QRqQr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 e4 Kc7 g4 Kb6 b4 f5 c4 f3 c5+ Ka7 c6 f2 c7 d3 g5 d4 g6 a4 g7 h3 Bf4 a3 Nc3 a2 Rh2 h4 Bg5 d2 Nge2 f4 Rg2 f3 Qb3 d1R Qb2 d3 Rg4 h2 Nd4 h1B Qc1 h3 Bg2 Nh6 g8Q f1R Qf7 Bf5 c8B+ Be7 Rb1 a1Q Bd7 Rd2 Nd1 h2 Nf2 Rg1 Bf6 Bh7 Ke6 Na6 e5 Bd6 Rh4 Qg8 Bd8 Nf5 Ba5 Qg5 Bc8+ Nc7+ Kd7 Rg8 e6 Ng3 e7 Ne2 e8R Rc2 Qf8 d2 Re7 Rc3 Qf4 Bc2 b6+ Kb8 b7 Ka7 b8R Re8 Re3 Re5 Rb5 Rf5 Re7 Rd5 Ne4 f2 Rc5 f1N Nf2 Nfg3 Qf6 Kb8 Rg4 Ra6 Nc6+ Ka8 Nb8 Ka7 Bf1 Bg2 Rd4 Bge4 Bg2 h1R Qf3 Rh4 Qd3 Nf4 Qdf1 Nfe2 Qb2 Rc6 Rd1 Ra3 Qc1 Qa2 Rb5 Rcc3 Rc5 Qc4 Kd8 Qd3 Bg4 Qde3 Kd7 Nf4 Qb2 Qe1 Qc1 Nfe2 Bb6+
Bb4b1/r2N2b1/r1b2Q2/k2q2Q1/P1R4n/1n2rpbN/q2nNBQQ/2R1K3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 e4 g5 h4 b5 a4 c5 d6 Kc6 e5 Kb6 d5 f5 h5 g3 e6 g4 d7 g2 d6 g3 h6 b3 e7 b2 e8N c4 h7 c3 Nf3 g1B Qd2 c2 Qe3+ Ka5 Kd2 g2 Ne1 b4 Rh3 b3 Be2 f3 Rh2 f2 Rh4 f1B Bh5 f4 Rh3 f3 Qf2 Bg7 Nf6 Bb7 Na3 b1Q Ne8 b2 Rh4 Ra7 Nb5 Bc4 Nf6 Qa2 Nd3 b1N+ Ke1 Nc6 Nc3 Nd2 Bg6 Nd4 Be4 N4b3 Ne2 Bh2 Ndf4 g1B Qg2 Bc6 Nh3 Nh6 Rb1 Re8 h8Q Qa8 d8Q+ Bb6 d7 Nf5 Qc7 Bg8 d8Q Bf4 Qcb8 Bbc7 Nd7 Ra6 Bd5 Re3 Qdg5 Qb7 Qf8 Bb8 Qff6 Bh2 Re4 Nh4 Rc4 Qb5 Be4 Qd5 Ba3 Bhf4 Bc5 Bfc7 Rd1 c1R Qhh5 Rcc3 Rc1 Bh2 Bg6 Re7 Be4 Bhg3+ Bf2 Re3 Nb6 Rea7 Nd7 Qf5 Qh8 Bb5 Ba8 Qd5 Qh7 Bc6 Qc2 Bf8 Qh2 Bg7 Qcg6 Bgc7 Qgg2 Bg3 Qgg5
q2q2k1/2R3N1/2q1q1Qn/3Q3r/PKbb1pQR/Q6q/2r2BB1/rn1RNb2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 b5 Kd2 h5 g4 f5 a4 Kf7 e4 c5 d6 b3 Kc3 c4 d5 f3 g5 f4 e5 h3 d7 b4+ Kd2 h4 d6 h2 Qc2 b2 Ra2 h3 Ra1 c3+ Kd3 b3 Kc4 f2 Kb4 Nh6 g6+ Kg8 e6 Ba6 e7 Bg7 Be3 Bd4 g7 Bc4 Nd2 b1R Qf5 c2 Ne4 c1Q Qg6 b2 Bg2 f1B Ng3 Rh7 Ra3 Ra1 Nf5 b1Q+ Rb3 Ra5 Bf2 Rc5 Nf3 Qe4 Ne1 Qe6 Rc3 Qce3 Rc1 Qf3 Qg3 Qa8 Qa3 Rh8 Rg1 h1Q e8Q+ Kh7 g8R h2 Rg4 Rc7 Ng7 Na6+ Ka5 Nc5+ Kb4 Qc6 Qg6+ Kg8 Rh4 Nb3 Rc3 Nd2 Rc1 Qde8 d8Q Nb1 Qdg5 Qd8 d7 Qca8 Qg4 Rh7 Bh3 Qhc6 Bg2 h1Q Rc2 Qh3 Rc3 Qde8 d8Q Rc8 Qd5 Qd8 Re3 Nf7 Rd3 Rh5 Rd1 Nh6 Rh1 Qg3 R1h3 Qh2 Re3 Qh3 Rc3 Rb8+ Qb5 Qcc8 Bb7 Ba2 Bg2 Rb6 Rc4 Rc6 Rc3 Rcc5 Rg3 Rc2 Rc3 Bb3 Rc6 Bbc4 Qd5 Qcd7 Rc8 Qdc6 Rc7
QB1k3r/n1nBR3/r1n1b2N/1Qb3nP/q3R3/1n3rb1/B1N3pq/1KR1B3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 Kc2 g3 e4 a4 b6 d3+ Kb2 g4 h5 d4 c5 g2 c6 d2 b7 f3 b5 g3 b6 a3+ Ka2 d3 c7 f2 e5 f4 e6 f3 e7 Nc6 b8B Nh6 b7 Nf7 Qb3 d1Q Nd2 Ra6 Nb1 d2 Qc4 Qa4 Qe2 d1N Qc2 Qd6 Be2 f1R Qc5 f2 Qb5 Be6+ Bc4 Ng5 Ne2 g1B c8B g2 Nd4 Bh2 Bd2 Bg3 Nf5 Qf4 Nh6 Qh4 Nc3 Qh2 Kb1 a2+ Kc1 Bg4 Nb1 Nc3+ Be1 Bd7 Na3 Be6 Rb1 a1N Rb4 Nb3+ Kb2 Ne2 Nc2 Nc3 Qc5 Nb5 Kb1 Nba7 Qb5 Bg7 Bd5 Bd4 Rc4 Bc5 Re4 Rg1 Bc4 f1N Bd5 Ne3 Bc4 Nd4 Ba2 Rf1 Rg1 Nd5 Rh1 Bg8 Bh3 Rf5 Rg1 Kd7 e8R Be6 Re7+ Kd8 Rf1 Rf3 Bg4 Bf7 Bd7 Be6 Bd2 Nf4 Bd6 Bf2 Rc1 Nb3 Be1 Nd5 Be5 Bg3 b8Q+ Nc8 Q8b7 N8a7 Bb8 Nc7 Qa8
rRNBb2b/Nn1r2Q1/1q3nQ1/rNrqn2p/Q7/8/1PBN1Rrk/2Kb4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 c4 Ke5 e4 a5 g5 h5 c5 d5 b6 f5 b7 f3 g6 Kf4 c6 Kg3 c7 h3 e5 d3 e6 f2 e7 d4 e8N f4 g7 f3 Qe2 h2 Bh3 f1N+ Kd1 d2 Kc2 d1R Bd7 d3+ Kb3 a4+ Ka2 d2 Nf6 a3 Nd5 f2 Ndc3 Nf6 g8Q+ Bg7 Bb5 Na6 b8Q Bd7 Nf3 Ne3 Qd3 f1R Qa7 Nc4 c8N Qb6 Ba4 Ne5 Bc2 Rg1 Nb5 Rg2 Rf1 h1Q N1c3 Nc5 Kb1 Nb7 Qa4 Be8 Rf2 Ra5 Nba7 Rc5 Qf7 Rf8 Ncb5 Bh8 Qdg6+ Kh3 Ng5+ Kh2 Ne4 Rg8 Ka2 Rf8 Kb3 a2 Qfg7 Rd5 Kc3 Rd7 Kb3 Rf1 Kc3 d1B Bg5 Rg8 Rc1 a1R Nd2 Re1 Bh4 Re4 Kb3 Rc4 Bg5 Rc5 Bh4 Nd5 Be7 Nf6 Bd8 Bg4 Re1 Bd1 Ref1 Nd5 Rf8 Nf6 Rf2 Ra2 Qag4 Ra5 Qa4 Qf1 Ka2 Qd3 Kb1 Qd5 Q7h6 Rgg7 Kc1 Rge7 Qhg7 Re6 Rg8 Rec6 Ne7 Rc8 Rf8 Rb8 Nec8 Ra8 Bc7 Rf7 Ncd6 Bc6 Rb8 Be8 Ndc8 Rd7 Bd8
2r3rq/N4b1B/rR2bNQ1/2P1bn1N/1n1B2b1/2KR1k2/6pb/nBQB1q2 b - - 0 1 illegal: No possible last move
1q5n/bN2R1qb/2N3R1/QqP3k1/1nBBRq2/KRrbq2p/Q1r1n3/5Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kf6 c4 h5 Kc2 a5 Kb3 d5 g4 a4+ Ka2 a3 b4 f3 b6 f2 b7 d3 b5 d2 e5+ Kg5 e6 f5 b6 h3 e7 f4 e8Q f3 Qe5+ Bf5 Bb2 h2 Qee2 d4 Bg2 f1Q Qc2 d1B Qc3 d3 Qb3 h4 Bh3 d2 Qc3 f2 Qa5 Na6 b8R Bc2 b7 d1Q Bd4 Bd3 Nc3 Qc1 Nb5 Nh6 Nd6 Qe3 Re1 Nf7 c5 Bh7 Kb3 a2 Ka3 a1Q+ Qa2 Nb4 Ne2 Be7 Rg1 h1N Rc8 Rg8 b8R Nh8 Nb7 Ng3 Rc7 Bd6 Re7 Rg7 Bg2 h3 Bd5 Rf7 Bc4 Rf3 Rg2 Bc7 Re4 Bb6 Re7 Ba7 Re4 Kg6 g5 Kf5 g6 Kg5 g7 Qc7 Rbe8 Qb8 Rb1 Qfc1+ Rb2 f1Q R8e7 Qef4 Rg1 Qce3 Rb3 Qc3 Be5 Rf2 Nd4 Rc2 Nc6 Qcd4 Qb1 Qd7 Bb2 Qdd4 g8Q+ Qg7 Rh1 Ne2 Bd4 Qff8 Qa2 Q1f4 Qf7 Qfe8 Nbd8 Qb5 Nb7 Qeb8 Rg1+ Kh6 Qb6 Qfg5 Qf1 Qgf4 Rg6+ Kh5 Qa6 Bb6 Rb1 Kh4 Qa4 Ra6 Kb3 Ba7 Qa5 Kh5 Qc7 Ra4 Rd6 Kg5 Qa5 Rc1 Kb2 Ra3 Rh6 Rac3 Rg6+ Kh4 Ka1 R1c2 Rb3 Rc1+ Kb2 R1c2+ Ka3 Kh5 Rd6 Kg5 Rg6+
1Q5q/1Bq1B1Q1/1r3QK1/2pn1r2/1R1n3b/n4rP1/RQ1R1N1r/Nrqbk3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 e3 h5 g3 a5 d5 c5 b3 f5+ Ke5 f3 e4 f4 b6 c3 d6 c2 d7 f2 Kf5 f3 b7 h3 e5 h2 e6 a4 e7 h4 e8R a3 Nc3 a2 Qe2 h3 Ne4 Qc7 Rd8 Ra6 Re8 Nc6 b8Q+ Rb6 Re5 Nf6 Kg6 Be7 d8Q Nd5 Qb7 Bh4 Nd2 Kc3 b4 Bg4 b5 Nd4+ Qf6 Rf8 Bg2 f1R Re8 f2 Rb8 Rf7 Qe5 Bd1 Nb3 Kd3 Be3 c1Q Bg5 Re1 Qe7 f1R Qe2+ Kc3 Qb2+ Kd3 Rd8 Rf5 Rb1 Ref1 Na1 R1f3 Ra8 Rh7 Ra6 Qd6 Qg7 Qc7 Qf2 Kc3 Rb4 Rh5 Qb2+ Kd3 Nb3 a1N Ra2 Nac2 Na1 Na3 Ra4 Rd6 b6 Rh8 b7 Rb6 b8Q Rh7 Ne2 Rh5 Rg1 h1R Rb4 h2 Nf4+ Ke3 Nh3+ Kd3 Bd2 Ke2 Rf1 Rg1 Nf2 h1Q Bf4+ Qd2 Bd6 Rh7 Nc2 Qc1 Be7 Kd2 Re1 Qh2 Re4 Rh1 Rf4 Ke2 Na1+ Ke1 Rc4 Qh3 Rc2 Rh8 Rd2 Rh2 Qa7 Rhb8 Bh1 R8b7 Qb8 Nb4 Qd8 Rc6 Qgf8 Ne2 Qc3 Bg5 Qf7 Re3 Rfd4 Qh8 Qa8 Bh4 Bd5 Ref3 Qg7 Rb8 Rc4 Nd4 Be4 Rb5 Qb8 Rcb6 Bb7 Nd5 Qc2 Rbb3 Rb4 Rb1 Qb2
3kn1BN/4n2b/1BqrQR1K/nP3B2/2q2p1Q/n1n1rRqB/1b1b2N1/2N5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 a5 c4 h5 g4 a4 g5 a3 g6 h3 b6 f3 c5 d3 Ke3 h4 Kf4 h2 c6 f2 e5 d2 g7 a2 e6 h3 b5 d4 e7 d3 Kg5 f4 b7 Ra3 c7 Nf6 g8N Bf5 c8B Nc6 b8Q Na5 Nh6 Bh7 Qg4 d1N Qf3 d2 Nf5 Re3 Qd5 Nb2 Ne2 d1N Na3 Nbc4 Nh6 Nc3 Nc2 Na3 Qe6 Qd3 Ne1 Qc4 Bg2 f1Q Nf7 Qf2 Rf1 h1N Qa7 h2 Bh3 Qg1+ Ng2 Ng3 Rf3 h1Q Bd2 Bg7 Nc1 Nf5 Be1 Rf8 Bf2 Qgh2 Nh8 Rf7 Rb1 a1B Qa8 Bb2 Ra1 Ng4 Qad5 Qg3 Qd1 Be5 Qe1 Rf6 Bg1 Bd6 Qf2 Bb4 Ra2 Qgh2 Qh4 Qg3 Kh5 Ne5 Bf2 Nd6 Ra1 Ng6 Kh6 Re4 Bb6 Re3 Qe4 Re6 Qe5 Rf6 Bcf5 Re6 Qef6 Kd7 e8B+ Kc8 Bf7 Ne8 Rf2 Ne7 Bg8 Kd7 Rf3 Kc8 Ba7 Kd8 Ra2 Rd6 Qe6 Ba1 Rd2 Bb2 Rd5 Na4 Rc5 Bd2 Rc6 Nc3 Qg6 Rd4 Rf6 Rd6 Qf7 Rdd3 Qe6 Rd6 Ne2 Qc1 Bc5 Qc2 Nc1 Q2e4 Bd4 Qec6 Bb6+
K2k1B1n/Q1bBRB2/2nQbr1r/bP2N2p/6q1/4Rn2/Nrrr2BQ/2q5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 a5 e4 f3 c4 f2 e5 a4 g5 h3 e6 h2 c5 f4 e7 f3 b6 a3 c6 a2 b5 Nh6 b7 Nf7 c7 Be6 c8Q Nc6 b8Q Rh6 g6 Nh8 Qa6 Qc8 Be2 f1R g7 f2 Kd2 d3 Kc3 d2 g8B d4+ Kd3 Bg7 Ke4 d3 Nc3 Be5 Bf3 Bc7 Qaa7 Kd7 e8B+ Kd8 Rb1 a1B Na2 Bc3 Ba3 B3a5 Qe2 d1Q Bg2 d2 Rb3 Qc1 Bf8 d1R Bd7 Rd3 Bf7 Rd2 Nf3 Rc2 Rg1 h1R Ne5 Rh2 Re3 Rd1 Re1 f1N Qbb6 Rdd2 Qd4 Rb8 Qd6 Rb6 Qf2 Rh1 R1e2 Nh2 Qg1 Nf3 Qh2 Rb2 Re1 Rdc2 R1e2 Bh3 Kd5 Rd1+ Nd3 Rdd2 Re7 Bc3 R2e3 Be6+ Kc5 Rf6 Ne5 Ba5+ Rc3 Bc4 Qd4 Rg6 Re3 Nb4 Bdh3+ Rbd6 Bg4 Rh6 Bf5 Qe6 Qd5 Qg6 Bd7 Rf6 Qc6 Qg4 Qd6 Nd5 Kc6 Nb4+ Kb7 Nc6 Ka8 Bb3 Bfe8 Be6 Bf7
1nRN3n/1K2Nr2/1n1k1rbN/1P5p/5qrn/1N1Bq3/1b1B2Q1/BqRQ3n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 f5 Kc4 a5 Kc5 d5 e4 h5 g4 f3 c4 d3 b4 h3 e5 h2 b6 a4 g5 f4 b5 d2 b7 a3 g6 d4 e6 f2 g7 a2 Qc2 d1N Bg2 f1Q Be4 f3 Qe2 f2 Bh7 d3 Qc2 d2 Nf3 Nh6 Ng5 Rg8 Nf7 Nc3 Qd1 Qdd3 Kb6 Ra7 c5 Qe3 Nd8 Nf7 Bd3 Nh8 Kc7 Bd7 c6 Be8 Kc8 Bf7 c7 Kd6 e7 Nd5 e8Q Bg6 Qe4 Ra6 Rg1 h1N Qg2 Be7 Bb2 Bf6 Bc3 Ra7 Ba5 Bb2 Bc3 Rf8 g8N Rf7 Nh6 Ra4 Bf6 Rg4 Bg7 Na6 b8B Nb6+ Kb7 Rf6 Ba7 Nb8 c8N+ Ke5 Qc2 d1N Ne7 Kd6 Nd2 Rf7 Rc1 a1Q Nb3 Qb1 Bc3 Rf6 Bd2 Rf7 Bf5 Qc4 Bd3 Qcf4 Re1 f1R Re2 Ndf2 Qd1 Ng3 Re1 Nfh1 Rc8 Rf3 Rg1 Nf5 Rf1 Nh4 Re1 Na4 Bd4 Nb6 B4c3 Qb4 Rg1 R3f6 Rf1 Qbf4 Re1 Bc1 Ba1 Ba3 Qde2 Bb2 Rec1 Qb4 Qef1 Qbf4 Qd1
r6N/3Rn1b1/r2k2n1/Rp3BB1/n1PNq3/2nr3n/1R1QBqBq/1bK1Q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 h5 c4 d5 g4 Kd7 f4 b5 a4 e5 a5 b3 f6 b2 a6 h3 a7 d3 f5 h2 f7 e4 f6 h4 g5 h3 g6 d4 g7 e3+ Ke1 d2+ Ke2 d3+ Kf3 e2 Ke3 e1Q+ Qe2 d1R Na3 b1N Nc2 d2 Nd4 Qb6 Nf3 Kd6 Ng5 Rh6 Ra5 Ne7 g8B Bg7 f8Q Nc3 f7 Bf5 Qd8+ Nd7 f8R Na4 Rf7 Bb1 Bh7 Qc5 Qe8 Ne5 Bf5 N5g6 Rg1 h1Q Rg2 h2 Rf2 Rd8 a8B Qa7 Bf3 Ra8 B1g2 Qhg1 B3g4 h1N B4f3 Qh2 Bh5 Bf8 Rh7 Bg7 Nf7+ Kc7 Nh8 Kd6 Bhg4 Qb7 B4f3 Qf1 Qd3 Qd5 Re2 Nf2 Qc2 Nh3 Rf2 Re1+ Be2 d1N+ Kd2 Ndc3 Qb2 Qe4 Qc2 Ba2 Qd3 Qfg1 Kc2 Rd1 Bg5 Qg4 Qe3 Rd3 Qc1 Qe4 Qd2 Nd1 Kc1 Bb1 Rf3 Qf2 Rg3 Ra3 Rb3 Ndc3 Rb2 Nd1 Bef3 Rd3 Bh5 Ndc3 Be2 Ne5 Qh5 Rf6 Qh4 N5g6 Qg3+ Kc5 Qge3 Rfa6 Qe1 Kd6 Q3d2 Bh6 Rf7 Bg7 Beg4 Ng8 Rc7 N8e7 Be2 Qee5 Ra7 Qe4 Rd7+
R2b3q/8/Bn4Qp/q2B1K2/1QN3Qr/2P1qNR1/1n1B2kq/r2bQqbr b - - 0 1 illegal: No possible last move, all moves rejected
2b1k2b/3q1Q1q/1B1nbPQ1/3bN1rn/1Kn1q3/p1B2NR1/3BBb2/R2R3r b - - 0 1 illegal: No possible last move, all moves rejected
B2rnq1Q/2b3n1/Q2Bpr1n/b1K2P2/2n1RRNn/N1qN3b/k7/3B2rB b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 c3 a5 g5 e3+ Kd3 h3 g6 h2 g7 h4 b6 e2 b5 e1B b7 h3 b6 a4 Nd2 a3 Nc4 a2 Qa4 Ra6 Na3 Nh6 Rb1 a1Q Kc2 d3+ Kb3 d2 Kb4 d1N Rb2 Ne3 Bd3 Ng2 Ne2 Nh4 Rf1 h1N Bc2 h2 Bd1 Ng3 Rf3 h1R g8B+ Nf7 Bd2 Ngf5 Nc1 Rg1 Nd3 Ng7 c4+ Kd4 c5 d5 c6 Bh3 c7 Nh6 c8B Nd7 b8N Nf6 b7 Nfe8 f5 Rf6 Rb3 Qc1 Qa6 Qc3+ Kb5 Bg3 Bc1 Bc7 Nd7 Ba5 b8Q e6 Bb7 Be7 Ba8 Bd6 Bf7 Bdc7 Bf4 Qe7 N7e5 Qf8 Ng4 Rg8 Bh5 Rh8 Ka4 Rg8 Nb5+ Kc4 Bd6 d4 Rf4 Rh8 Nh2 Rg8 Bhf3 Rh8 Ng4 Rg8 Ndf2 Rh8 Bfe4 d3 Rb2 Rg8 Re2 d2 Nd3 Rh8 Bc2 d1N Bh1+ Qd4 Re1 Ne3 Na3+ Kc3+ Kb5 Nc4 Bd1 Rg8 Ndf2 Kb2 Ree4 Ka2 Nd3 Qc3 Kc5 Qf7 Be7 Ned6 Qc6 Rh8 Qg8 Qe8 Qh7 Qf7 Qa6 Rd8 Bf8 Nde8 Bd6 Qf8 Qh8
1Bq5/K3n2N/QNPn1b2/RQ1pnQQ1/Bn2Bqrn/R7/5b2/kr1bq3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 a5 b4 h5 e4 d5+ Kd3 f5 c4 a4 b6 f3 c5 f2 c6 a3 b5 a2 g5 f4 b7 f3 b6 h3 g6 h2 g7 h4 Bg2 f1Q+ Ne2 h3 Rg1 h1N Be3 h2 Na3 f2 Qa4 Ne7 g8B Nd7 Bc1 Rb8 Bh7 Ng3 Qa6 Qe1 Nf4 h1N Ne6 Ngf5 Ng5 Nhg3 Bg6 f1N Nh7 Nd6 Be3 Rg8 Nc4+ Ke6 e5 Ngf5 Rh1 Nh4 Bf4 Ne3 B2e4 Nc2 Rh3 Bg7 Bh5 Bf6 Bd1 Rg4 Re3 Qf2 Bh2 Qf4 Rh3 Ra8 b8Q Qg8 Qba7 Rb8 b7 Qe8 Nb6 Nb4+ Ke2 Qd8 Ra3 Qc7 Ba4 d3+ Kd1 d2 Ke2 Qd8 Qd3 Qh8 Qaa6 Qd8 Qf3 d1Q+ Kf2 Qg1+ Ke2 Qc7 Qe3 Qgf1+ Kd2 Qd1+ Kc3 Qe1+ Kd4 Qd8 Rc1 Qh8 Rc5 Qe8 Ra5 a1B+ Qc3 Nf8 Kc5 Nfg6 Qg3 Bd7 Na8 Qc8 Kb6 Bc3 Ka7 Bd4+ Nb6 Bf2 Bh1 Kf5 e6 Ke5 Be4 Kd4 Qf3 Ne5 Qg2 Ng8 e7 Bf5 e8Q Ne7 Qf7 Bg6 Ra1 Kc3 Ra3+ Kb2 Qe6 Bh5 Qf5 Rg7 Qgg6 Bd1 Qh6 Rg4 Qhg5 Qf8 Rf3 Ka1 Bg3 Re8 b8Q Qg8 Qbb7 Rb8 Qb5 Qe8 Q7a6 Qc8 Ra3+ Na2 Bg2 Ndf7 Be4 Qf3 Bb1 N5g6 Be4 Qfe3 Bd6 Nge5 Qc5 Qf4 Nc4 Rb1 Bb8 Nd6 Nb6 Ndf7 Rc3 Nd6 Qcb5 Nb4 Ra3+
1bqn1N2/5B2/1Rp1n3/1Q2qPb1/1BBB2R1/2N2r2/bb3q2/nR1KQrbk b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Ke6 b4 Kd5 d4 e5 f5 h5 b6 a5 g5 h3 g6 c6 g7 c3 b5 c2 b7 h2 b6 a4 Qe2 a3 Kd2 h4 Nf3 e3+ Ke1 Ke4 d5 h3 d6 a2 d7 Bd6 Nh4 Ra3 Qd2 e2 Nf3 Nh6 g8B Na6 b8B Nc5 b7 Ne6 Qc3 Nf7 Be3 c1B Bh6 Bb2 Rg1 h1Q Bd2 h2 Rg5 Qg1 Nd4 h1Q Qg3 Rf3 Rh5 Qhh2 Ba5 Qgf2+ Kd2 e1B+ Kd1 Bd2 Bb5 Bg5 Ba7 Bb8 Ba6 Qe8 Bb4 Nfd8 Qg2 Ke3 Bf1 e4 Rh4 Qe5 Rg4 Rh1 Nc3 Rg1 Rb1 a1N Bf7 Q8h8 Rg3 Kf4 Bb6 e3 Qh2 Rh1 Qg1 Qf8 Bc4 e2+ Kd2 e1B+ Kd1 Bd2 Qe1 Rf1 Rg1 Be3 Rg2 Bc7 b8Q Qe8 Qb7 Bb8 Qa6 Qf8 Qb5 Qfh8 Nb3 Qg8 Bd4 Qgh8 Nc5 Qg8 Rh2 Kg3 Rh4 Kg2 Rf4 Kh1 Rg4 Nb7 d8R Bd7 Rc8 Nbd8 Rc7 Be8 Nd7 Qgh8 Bh5 Bf7 Rb7 Qe8 Nf8 Qd7 Rb6 Qc8 Ng6 Qfh2 Rb7 Bg1 Rb6 Qf2 Nf8 Ng7 Be2 Ba2 Bf7 Nge6 Bc4
2Bq1B2/4N1Pk/2B1q3/n1qqN1RK/Q3rpn1/2r1R1b1/2R1Q2B/1rqn1b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 a5 g4 h5 e4 f5 b4 Kf7 c4 Kg7 g5 h3 b6 h2 b5 a4 g6 a3 c5 d3 c6 d2 b7 d4 e5 h4 b6 a2 e6 d3 e7 h3 e8B Rh4 c7 Nh6 Be2 Ng4 Bf1 Nc6 b8Q Ra3 b7 Na5 Qa4 d1R Nc3 d2 Qa7 Bd6 b8B Ba6 Rb1 a1Q Rb3 Qa2 c8R+ Kh8 g7+ Kh7 Bg2 Bf1 Qe7 Qc2 Bb2 Rb1 Qe2 d1N Nd5 Qc5 Re3 Rc3 Ne7 Bc7 Ba3 Bd6 Qa6 Bc7 Bc6 Be5 Ne2 Bd6 Rg1 h1Q Bc7 h2 Nc1 Nf6 Rb8 Qb6 Qd3 Bc5 Qdc4 Bd3 Re2 Bf2 Rf1 Qg1 Nd5 h1Q Be8 Rh2 Qe4 Qe6 Bd7 Bh4 Bb6 Bg3 Rfe1 Ng8 Bf8 Nh6 Ne7 Qd4 Rc8 Qdd6 Rc2 Qg1 Bh1 Re2 Rc6 Qgd4 Bc8 Re3+ Kg2 f3+ Kh3 f2 Rc5 f1Q+ Bg2 Qff4 Bc7 Bf1 Nd3 Ng4 Re5 Bh2+ Kh4 Q6b4 Kh5 Qbc5 Bb8 Re2 Qe3 Qdc4 Bc6 Q4d5 Qee4 Qc1 Qec4 Re4 Re3 Qd5d6 Rd5 Qd6d7 Bg3 f4 Rg5 Qdd6 Ne5 Qdd2 Qe2 Q2d5 Bf2 Bg3 Bg1 Qdb6 Bh2 Qb8 B8b7 Qbd8 Bc8
1Rbn3Q/2rq1PkN/b1R1BR2/4R2B/6p1/BbNbrQ1r/2n2K2/bq5q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 Kf7 a4 d5 f4 b5 c4 g5 f6 e5 a5 d3 h5 b3 f5 b4 a6 g3 h6 d4 a7 g4 c5 d2+ Ke2 g2 h7 b2 c6 e4 c7 b3 Rh2 d3+ Ke3 Nh6 Nh3 g1Q+ Rf2 Qd7 Ra6 Bg7 Ra3 Nc6 Qf3 d1B Ra6 d2 Nc3 b1Q Bd3 Nd8 Rc6 Be2 Ba3 d1B Bc2 Rb8 a8R b2 Ra5 Qh1 Re5 Rb7 Rf1 Bc4 Kf2 Ba6 Ba4 Bb3 Bb5 Qd6 Ng5+ Kf8 f7 e3+ Kg3 e2 Kf2 e1R Bc4 Rg8 h8R Re3 Bd5 Bf6 Nh7+ Kg7 Be6 Re8 Bd7 Re7 Be8 Qd7 Rf8 Qc1 Rh8 b1B Rf8 Bbd3 Rh8 Ra7 Rf8 Bcb7 c8B Qb1 Rh8 Qe6 Bcd7 Bc8 Rf8 Qd5 Be6 Rec7 Rh8 Qd7 Rf8 Be7 Rh8 Bc5 Rf8 Bd4 f6+ Kg6 Rh8 Nf5 f8Q+ Nf7 Nd5 Ba1 Nc3 Nd4 Qe7 Kh6 Rg8 Nd8 Bh5 Rab7 f7 Nc2 Qe8 Rb4 Rb5 Rbe4 Rb8 Rf4 Rg5 Rf6 Rf5 Kg7 Re1 Rg6 Rf6 Rh6 Qe2 Rh3 Qf3 Rg6 Re5 Rg5 Rec5 Re5 Rcb5 Re1 Re5 Re3 Qh8+
3B1qQ1/BK1N1Prq/1R1Q1r2/3r1bq1/1p1n4/5k1q/1q1bnR2/nBN1R2B b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 g4 h5 a4 e5+ d6 b5 d4+ e3 d5 h3 a5 e4 a6 b3 f3 b2 g5 b4 a7 h4 g6 h2 g7 h3 Kb5 c5 d7 c4 d6 c3 Ra2 c2 Nd2 b1Q Bd3 e2 Qf1 e1N Nc4+ e3 Ra3 Ne7 g8Q Nd5 Ra1 Rh7 Kc5 Nc6 Ra6 Nc3 Rb6 Bh6 Ne5 Qf8 d8R Ne2 Nd7 Ncd4 Kd5 Rb8 a8B Rg7 Qg2 Qb2 Qg6 Bg5 Qh6 Kg3 f4 Rb7 Bd2 c1Q f5 Nec2 f6 Na1 f7 Rc7 Bb1 Rc6 Be1+ Kg4 Bf2 Qcd2 Nb8 Bf5 d7 Rf6 Rc8 Kf4 d8B Kg4 Rc2 Bf4 Nf3 Bg5 Rd1 h1Q Re1 h2 Nd7 Qg2 Qg6 Qh3 Nfe5+ Kf4 Nd3+ Kf3 Nc1 h1Q Bg3 Qh7 Bb8 Q1h3 Bc6 Ng3 Qh6 e2 Ba7 Qf4 Rd2 Qfg4 Rc2 Bd2 Qg6 Qg5 Ba8 Ne6 Kc6 Nd4+ Kb7 Qf4 Rd1 e1R Qh6 Re8 Re1 Re5 Qg6 Rd5 Qh6 Bc3 Rg2 Qg5 Qg6 Bd2 Qh6 Rc6 Qd6 Nge2 Qb8 Qhg6 Ka6 Rdd6 Rgg1 Qgh7 Rg4 Rf6 Qd6 Ke3 Rgg1 Rc4 Bh1 Rc5 Kb7 Rd5 Rg2 Kf3 Rf2+
RB2N3/rn1BP2K/b1B2R2/pb2k1N1/Nn1r1n1b/8/3q1B1b/Q1qb2qQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 h4 g5 c4 d5+ Kd3 g3 e4 f3 b4 g4 b6 f2 c5 g2 h5 g3 b7 Ra7 b5 Ne7 c6 Na6 b8B Nf5 h6 Nd6 b6 Nb7 c7 Be7 h7 Ke5 Nh3 g1N Be3 f5 Ng5 g2 Nc3 f4 Na4 f3 Be2 f1B Bf2 Bd7 c8B+ Qc7 Rc1 Rd8 Rc6 Nh3 Qa1 g1B Rf6 Bh2 h8Q Be8 Bd7 Nb4+ Kd2 Qd6 Beb5 Nf4 Bbc6 Ba6 Rc1 Qc7 Rc3 d3 Ke3 d2 Qh4 Nc5 b7 d1Q Qh3 Qg1 Qg2 Qd6 Qh1 Bb5 Bc7 Bh5 b8N Nb7 Na6 Be8 Bb8 d4+ Kd2 d3 Ke3 d2 Nc7 Bh5 Ne8 d1Q Bd5 Qc2 Rc8+ Qb2 B5c6 Bg4 Bc7 Bh5 Ra8 Ba6 Bb8 Qc7 Bc8 Rd4 B8d7 Qd6 Ne6 Bg4 Rf7 Bh4 Rf6 Rd2 Ng5 Bh5 Qa2 Qbc1 Qa3 Qg4 Bg1 f2 Qa2 f1B Bf2 Qg1 Qa1+ Qb2 Be6 Bhe2 Bed7 Beb5 Kf3 Bg2+ Kg4 Rd1 Bg3 Kd4 Kf5 Bf3 e5 Rd2 e6 Bd1 e7 Qc7 Bd5 Qc1 B5c6 Rd3 Qb1 Qbd2 Bf2+ Kc4 Qa1 Rd4 Bf3 Nfd5 Kg6 Nf4+ Kh6 Kd3 Kh7 Kc4 Ne4 Kd5 Bg2 Qc7 Ng5+ Ke5 Nd6 Qc4 Bgc6 Qcc1 Ne8+
n1b2n1N/2Q1P3/rN4pK/1R1b3B/n3NnNr/1RbQ1kq1/q3q1R1/1nB5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 e4 Ke5 c4 d5 h4 f5 c5 a5 h5 g6 c6 d3 c7 a4 b6 g3+ Kf3 g2 b5 d2 b7 a3 b6 a2 h6 d4 h7 d3 Rh5 Ra6 Qb3 d1B+ Be2 d2 Rh2 Qh4 Qa3 Ne7 Nc3 Bb3 Qc5+ Nd5 Bc4 d1N Be2 Nd7 b8N Bg7 b7 Nb2 Qb6 Na4 Bf1 Nf8 Rb1 a1Q Qb5 Qa2 Qd3 Ndb6 Be2 Na8 Nh3 Bd5 Rb5 Qe1 Nf2 g1N+ Kg2 f3+ Kg3 f4+ Kh4 Nh3 Rg2 Ng1 Bd1 Ne2 Kg5 Bf6+ Kh6 Qg1 Nh3 f2 Rb3 f1Q Nf2 f3 Nd7+ Ke6 b8R Nf4 e5 Qfe2 Ng4 f2 R8b4 f1N Rb5 Nd2 Nb6 Nb1 Ne4 Kf5 e6 Bc3 e7 Qge3 Rb2 Qg3 R2b3 Bd7 c8Q Be6 Ne5 Bd7 Qc7 Bc8 Nec4 Kg4 Ne3+ Kf3 Rg1 Rg8 h8N Rg7 Rg2 Rg8 Qd2 Rg7 Ng4 Rh7+ Kg5 Rh4 Qc2 Qh3 Ngf2 Qh2 Ba3 Ke3 Bc1+ Qd2 Bh5 Qg3+ Ng4+ Kf3 Kh6 Qe2 Qd3+
B5Rr/3kp1Qn/1nq2NB1/2P5/b1rrbr2/bQ1q4/1BQR1nr1/K4B1N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 g4 d5 c4 h5 Kc2 b3+ Kb2 h3 f4 h2 a4 h4 f6 d3 c5 d2 a5 d4 a6 h3 f7+ Kd7 g5 d3 f5 b4 f6 Bg7 f8Q Bb7 g6 Be4 Qc2 d1R a7 d2 Ra3 Qe8 Ka1 b2+ Ka2 Rh4 f7 Rf4 Rc3 b3+ Ka3 Nf6 Qh8 Nh7 f8Q Qc8 Qfg8 Qc6 Rf3 Bf6 Nc3 b1R g7 b2 Ka2 Ra1+ Kb3 b1Q+ Bb2 Ra4 Nge2 Rc4 Rg1 h1R Nd5 Rh2 Rd3 Rg2 Ng3 h2 Nh1 Bc3 Qf7 Bb4 g8B Ba3 Rd4 Na6 Qfg7 Nc7 Bf7 Rd8 Bg6 Na8 Qhf8 Nb6 a8B Rb8 Qff7 Rh8 Ng3 h1N Nf6+ Kc7 Rd6 Nf2 Nh1 Kc8 Qc3 Qd3 Ka2 Rb1 Qc2 d1B Rd7 Rd4 Qfb3 Rc1 Qb1 Rcc4 Ka1 Rh2 Rg3 Rg2 Rd8+ Kc7 Rg8 Bc2 Re3 Bd1 Re2 Bc2 Rd2 Bd1 Qb5 Bb3 Qc2 Ba4 Ne8+ Kd8 Qbb3 Kd7 Nf6+
1r2qQ1B/1N1PRB1q/2bBr3/1k1Qn1b1/2N1p1NN/3nrRb1/3bn3/1K5b b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 f4 e5 d4 a5 Kd2 c5 Kc2 h5 b4 e3 g5 c3 d5 h3 b6 h2 d6 Kc6 f5 c4 f6 e2 g6 e1R f7 a4 g7 e4 d7 a3 b7 a2 Nd2 h4 Qe2 h3 Qg4 Na6 b8B Re3 Bg3 Qe8 Bg2 Be7 f8Q Bg5 Qh5 Nc5 Bf1 Ne7 g8N Ng6 Nf6 Rb8 Ngf3 Ne5 Nh4 Kb5 Ng4 Rh6 Bb2 Bb7 Be2 Rb6 Raf1 a1B Kb1 Ncd3 Rf3 Re6 Bd1 Bd5 Bb3 Bc6 Rhf1 h1Q Rf7 h2 Re7 Qg2 Rf3 h1B Qhf7 Qh3 Qf5 Kb6 b5 Kc5 b6 Kb5 b7 c2+ Ka2 c1N+ Kb1 c3 Nc4 Ne2 Ba2 Rd8 b8N Rc8 Na6 Rb8 Nc5 Qh2 Bb3 c2+ Ka2 c1B Nb7 Bd2 Kb1 Be1 Bd4 Bac3 Bf4 Bg3 Q5f7 Ng6 Bd6 Bd2 Bh8 Nge5 Q7g8 Qh3 Nb2 Rh6 Bf7 Re6 Nc4 Qh2 Nf5 Qh6 Nh4 Qh7 Qgg7 Ng6 Qd4 Nge5 Qd5+
3r2kB/bp5R/Rnn1KQn1/3B2Bn/b1q1P3/1Rb2N1r/n1NRq3/5Qr1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 Kf7 g4 b3 d4 c4 a4 f3 e4 f2 a5 b2 d6 c3 d7 c2 g5 f4 d5 h3 a6 h2 a7 f3 d6 h4 Qe1 h3 Qa5 Bg7+ Kd5 Nc6 Ra4 Qc7 d8Q Bc3 d7 Nge7+ Kc4 Ng6 Bd2 c1B Bd3 f1Q Kd5 f2 Na3 b1N Qf6+ Kg8 d8B Bd7 Rd4 Qe2 Nf3 f1N Qb5 Qc8 Bf4 Be3 Nc2 Nfd2 Be5 Nc4 Qa6 Rb8 a8R Nb6+ Kd6 Be8 Bb5 Qc7+ Ke6 Bf2 Be7 Rd8 Bc4 Rh5 Bd5 Rh7 Rc1 h1R Rd2 h2 Rg1 Be3 Rg3 Rg1 Qb5 h1N Ra6 Rh5 Rh3 Rh8 Rh7 Ng3 Qd3 Nh5 Qc4 Qg2 Qf1 Qe2 Bd4 Nb8 Be5 Qcc4 Bd4 Ba4 Be5 Nh4 g6 Nc6 g7 Ng6 Qe1 Ba1 Qf5 Nc8 Bc7 Ng3 Rh2 Nc3 Qf1 Ba7 Be5 Na2 Nh4 Kh7 g8R Nb6 Rf8 Ncb4 Bg5 Nc6 Q5f2 Nge7 Rf3 Kg8 Rb3 Bc3 Qf4 Rh5 Bh8 Ng6 Qf6 Rh7 Nf3 Rh6 Rh4 Rh7 Rf4 Rh2 Rh4 Rh3 Rh6 Nh5 Rh7
1rBBkr2/1nN1r2r/1r2r1q1/1nPNb3/K3N2r/2Q1p3/1B2RbbQ/2RB4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 e3+ Kc2 e2 Kb3 e1R f5 e4 f6 h3 b6 a4+ Ka3 d3 b7 d4 g5 d2 g6 h4 g7 d3 Ne2 h2 Bb2 h3 Nbc3 Na6 b8B Qb6 Be5 Nc7 Ng3 Bc5 Qb1 d1R Qc2 d2 Bg2 Bb7 Bd4 Rb1 Nf5 d1R Ra2 Nh6 g8B Nf7 Ng3 Nd6 Bf3 Rb8 Be6 Rf8 Nd5 Bc6 Be2 Nb7 Qc3 Rd2 Rf1 h1R Bd1 h2 Bc8 Rde2 Bf2 Bd4 b5 Be3 Kb4 a3 c5 Qa6 b6 Nb5 Rg1 Bd4 Be3 Be5 Bf4 Bd4 Bc7 Bf2 Bd8 Re3 Ra1 a2 Rg2 Na5 Ka4 Nb7+ Qa5 R3e2 Be5 Rb3 Rc1 a1B Bb2 Ree3 Ba3 Be5 Bb2 Bg1 Re2 Bf2 Nh5 Rh3 Ng3 Rh7 Nh5 Re7 Ng3 e3 Ne4 Reg1 Rec2 Rg4 Rd2 Rh4 Re2 N7d6 b7 Rf1 Ra1 h1R Rc1 Qb6 Qe1 Rhh7 Qc3 R1h4 Nf4 Rg1 Nd5 Rg6 Bg4 Rc8 b8Q Nb7 Qc7 Rb8 Bc8 Bd7 Qd6 Bh3 Qc7 Bg2 Qd6 Bd4 Qh2 Be5 Bh3 Qe6 f7+ Kd7 Bg4 Qf5 Bh3 Rge6 Bg4 Qg6 Bf5 Rfh8 f8N+ Ke8 Bh3 Nd4 Bg4 Rbb6 Bh3 Nb5 Bf5 Rec6 Ne6 Rf8 Bh3 Kd7 Nec7+ Rce6 Na6 Ke8 Bf5 Red6 Bc8 Rde6 Nac7+
Bk1Q1B2/1bbKRnQr/Q3nq1n/2P2N2/3N2r1/1np4n/3Q2B1/Rnr3n1 b - - 0 1 illegal: No possible last move, all moves rejected
B1B5/2b1Kbqb/P1N4r/N1rpn1B1/QR1Rk3/Q1Q2b1b/2b4b/r4nQ1 b - - 0 1 illegal: No possible last move, all moves rejected
1b4Q1/PbbbN2Q/1n6/Kb2Nrk1/1rR1b3/b1p1nq1R/B1Q3nB/2QN4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Ke7 Kd2 Kf6 e4 c5 h4 g5 a4 b5 d6 b3 Kc3 f3 d7 b4+ Kc4 g3 Kb5 b2 h5 g2 a5 f2 d5 c4 a6 g4 d6 c3 a7 g3 h6 b3 h7 Ne7 Bf4 Bb7 Na3 b1B Bd2 b2 Qa4 Nd5 Nf3 g1B Be3 g2 Bc5 Nf4 Nd2 Kg5 e5 f5 e6 Bh2 e7 g1B e8Q Qf6 d8Q Nd7 Ndc4 Rb8 Qc2 Nb6 d7 Ng2 Bd6 f4 Qe1 f3 Ne3 Ba2 Qe8 b1B d8N Be6 Qec1 Bd7+ Ka5 Rg8 Bb5 f1N h8Q f2 Bc4 Qf3 Nd1+ Nfe3 Ba2 f1B Qhh7 Bfb5 Nc4 Bf4 Rh3 Bgh2 Be5 Ba3 Nc6 Rf8 Ne7 Rf5 Bc7 Bfd6 Ne5 Bf4 Q2d2 B1e4 Qdc2 Rc8 Bb8 Rc4 Rb1 Bc7 Rb4 Bh2 Ra4 Rb4 Qc8 Rb3 Rc4 Rb4 Qcg8+ Kf4 Qgg6 Bd8 Nf7+ Re5 Nd6 Rf5 Qe8 Kg5 Qeg8+ Kf6 Nf7 Bg3 Nh8 Bh2 Nhg6 Kg5 Be5 Bf4 Bg7 Bd6 Be5 Bb8 Bh2 Bdc7 Ne5+
1Qqb1n2/1N3n2/5Q2/N2n3K/4B3/R2BN1k1/q1PbNrbp/rRBq2rb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 e4 f5+ Kh5 a5 b4 d5 g4 h3 g5 f3 b6 f4 b7 d3 g6 d2 b5 a4 b6 f2 g7 a3 Qg4 d1R Qe2 h2 Bb2+ d4 Qa6 a2 Bc1 f3 Qc4 d3 Bh3 f1N Na3 f2 Ne2 d2 Ng1 Kf4 e5+ Kg3 e6 Nh6 g8N Nf7 e7 Bh6 e8B Nd7 b8N Bb7 Qa4 Bg2 b7 Ne3 Nf6 f1Q Qb5 Qc4 Qf5 Nf8 Nd5 Qdc8 Nb5 Ra7 Rb1 a1B Nd6 Bf6 Bc6 Bd8 Qf6 Ra1 Bf5 Qa2 Nh3 Rg1 Bd3 Rg8 Nhf4 d1Q+ Be2 Rg4 Bd3 Rf1 Rb3 Rf2 Ra3 Bg5 Rf1 h1B Rg1 Nc4 Rf1 Nb6 Ne3 h6 Bce4 Nd5 Nh3 Bf4 Nc6 Bg5 b8Q Bf4 Nec4 Bd2 N6a5 Bf3 Nb5+ Kg2 Nbd6 Qe2 Ndb7 Rg8+ Kh4 h5 Bb2 Rg5 Rc1 Qd1 Nf4+ Kh2 Be5 Rg1 Ne3 Bfg2 Bd4 Nh6 Kg5 h4 Rb1 h3 Bb2 Kg3 Bc1 h2 Rb2 Rf3 Rb1 Nf7+ Kh5 Rf2+ Ne2+
1b6/rQ2br2/1nb1qkB1/2B1R2K/Nq1qB3/1N1p2r1/P2n1r1R/1N3QBn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 Kf3 d5 Kg4 e5 f4 h5+ Kf3 b5 g4 h3 c4 e4+ Kg3 e3 f6 d3 Kh4 d2 f5 b3 g5 b4 c5 h2 c6 e2 c7 e1B+ Kh3 d4 Qc2 d1Q Bb5 d3 Nd2 b2 Qa4 b1Q Ne2 h4 Kg4 h3 Ba6 b3 Qd7+ Be7 Bb7 b2 Nb3 Bg3 Be4 Bb7 c8N Rh7 Be3 Bc6 Nb6 Ra7 Qb7 Nd7 Na4 Qe1 Nec3 Nb6 Bg1 Rg7 Kh5 Bb8 Bg2 Qe6 Be4 Qd4 g6+ Kf8 f7 Nf6+ Kh6 Qe1 Nb1 Qeb4 Kg5 Rg8 Kh4 Kg7 f8Q+ Kh8 g7+ Kh7 Nbc3 b1R Kg5 Rb2 Re1 Rc2 Nb1 Rf2 Qf7 Rf8 g8B+ Kh8 Bh7 Rg8+ Kh4 Rg3 Qe8+ Kg7 Bg6 Ng4+ Kh5 Ne5 Qd8 Nec4 Qe8 Kf6 Qf8+ Ke5 f6 Nd2 f7 Kf6 Re2 Rf4 Bf2 Rff3 Rhe1 h1R Bg1 Rf1 Rh2 Rf4 Be3 Rhf1 Bg1 R1f2 Qg8 Ke5 f8B Rf7 Re3 Kf6 Re2 Bd8 Bc5 Be7 Qf8 Rfg2 Re3 Rf2 Rg2 h2 Re1 h1N Rh2 Ke5 Re3 Rg7 Qf3 Rf7 Qg2 Kf6 Qf1 Ke5 Re2 Kf6 Bd5 Rgf3 Re5 Rg3 Bde4
1BKnQ1rQ/1n2Nr1q/1qbr2Q1/1k2R1q1/RN3bpQ/4NB2/6P1/b4nb1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 h4 fxe4 h5 b5 axb5 Qc7 h6 Qf4 Na3 Qxh6 Nb1 Qh2 Kd2 h5 b4 e5 c4 a5 f4 d5 b6 Kd7 f5 Kc6 f6 g5 f7 h4 b7 h3 c5 d3 Ke3 g4 Ra3 a4 Ra2 d4+ Kd2 a3 Qc2 e3+ Ke1 e4 Ne2 d2+ Kd1 Qd6 Rb2 a2 Nbc3 a1B Na2 h2 Nf4 Rh7 Ke2 d1R Nd5 Na6 b8Q Bd7 Qe8 Kb5 c6 Ne7 c7 Nc5 c8N Nc6 Nce7 Bh6 f8Q Nb7 Qf2 Ncd8 Qh4 Bf4 Rb3 Qa6 Ra3 Bc6 Ra4 Qb6 Rg1 h1Q Qb1 Kc4 b5+ Kc5 Nab4 Rf7 Bd2 Rb8 Be1 Rd3 Bg3 Ra8 Ke1 e2 Kf2 e1B+ Ke2 Bf2 Ne3 Qh3 Rh1 Bg1 Bh2 Qc7 b6 Kb5 Bg3 Qe5 Qeh8 Qg5 Bh2 Nd6 b7 Rc8 b8Q+ N6b7 Qb3 Rd1 Qe6 Rd3 Qg6 Rd2+ Ke1+ d3 Qa8 Rb8 Be2 Rc8 Bf3 Rb8 Nec2 e3 Bg3 e2 Ne3 Ne6 Bh2 Rg8 Qe8 Ned8 Bg3 Bh2 Kf2 e1N+ Be2 Nc2 Re1 Rd1 Bf3 d2 Ke2 Bg1 Kd3 Qh1 N3d5 Ne3 Ke4 Nf1 Re2 Bfe3 Bb8 Bf4 Re1 Rc1 Re2 d1Q Re3 Qb3 Re1 Bd7 Ne3 Rc6 Re2 Bfe5 Re1 Qb1+ Kd5 Bf4+ N3f5 Ra6 Re5 Qb2 Ne3 Qf2 N3f5 Qb6 Ne3 Qh2 Qg3 Qh7 Qh2 Nc5 Qh4 Bc6+ Kd6 Qa7 Nbd5 Ncb7+ Kc7 Qd4 Kc8 Qb6 Rc4 Ra3 Ra4 Rd3 Nb4+ Rd5 Re6 Rd6 Re5+
1B1n4/1B2RQ1K/bQrN3R/1r1q1R2/qn1p2B1/r1B1q3/kn2PN1b/3b3b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 f5+ Kf3 d5 b4 a5 g4 a4 c5 d3 b6 d2 b7 h3 g5 h2 c6 h4 g6 d4 b5 Kd5 g7 Kc4 c7 a3 b6 h3 Nc3 a2 Ne4 Qe7 Bb2 Na6 b8Q Rh6 b7 Rc6 Qb1 Kb3 Bg2 d1B Nd6 Nb4 Nb5 Nh6 g8B+ Nf7 Nc3 Ra3 Bh7 Nd8 Kf2 f3 Kg3 f2 Kf4 f1N Ne4 Ne3 Nd6 Nc4 Bc3+ Nb2 Qa7 Qg5+ Ke5 f4+ Bf5 f3 b8B Ba6 c8R f2 Rc7 f1R Re7 Qe3+ Kf6 Bg7+ Kg6 Be5 Bc8 Rf5 Kh7 Bf4 Qb7 Rb5 Bg4 Bg3 Qg6 Bf4 Rc1 a1Q Qb6 Ka2 Qf6 Rcc5 Bb7 Rc6 Nf3 Bg3 Nd2 Bf4 Rf1 h1Q N2e4 h2 Nf2 Qd5 Qf7 h1B Rb1 Bg2 Rh1 Bf3 Rh3 Bh1 Rh6 Bh2 Rc1 Ba4 Rf1 Bd1 Ba7 Qac1 Bb8 Qc2+ Nd3 Qcb3 Rf5 Qa4 Nf2
KbBRqkNr/1N1n1N2/1rrBbb2/4nB2/nP2Br1q/7p/2R1q3/Q2Q4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 d5 e4 f5 c4 h5 b4 a4 g4 a3 b6 h3 e5 a2 g5 h2 c5 h4 c6 d3 b7 d4 c7 d2 g6 d3 e6 Ne7 g7 Ra6 g8N Rb6 Qe2 d1Q Bh3 d2 Na3 Nec6 e7 Be6 c8B Nd7 b8Q Bh6 Rb1 a1B Qa8 Bf6 Nc4 Qa4 Qa7 d1N Na5 Nb2 Qd1 Kf7 e8B+ Kf8 Bg4 h3 Bg6 Bhg7 Nb7 Nce5+ Kf2 f3 Ke3 f2 Kd4 f1Q Bf4 Qab5 Qa1 Qfe2 Rc1 Na4 Nf3 Qe7 Re1 h1R Ng5 Qe8 Bh2 f4 Nf7 f3 Rc2 f2 Be4 f1R Bgf5 Rf4 Rf1 Rg1 Rf2 Qg4 Rfd2 Qbe2 Rd3 Qh4 Bg3 Nc3 Bh2 Rg6 Rdd2 Nb8 Kc5 Rgh6 Rd8 Rg6 Bc6 Nbd7+ Kd6 Na4 Kc7 Be7 Bce4 Bgf6 Na5 Rc6+ Kb7 Bd6 Ka8 Bb8 Nb7 Rg3 Bg1 Rd3 Bb6 Rdd6 Bc7 Rb6 Rc3 Rdc6 Rc2 Bg5 Bd6+ Be7 Bc7 Bf6 Bd6+
1rbNNKn1/1r1B4/1nqB2bk/2Qn4/1P1pnR1q/b4rB1/1qR3Q1/N5B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 c4 Kf7 h4 Kg7 c5 a5 e5 f3 b6 g3 c6 g4 e6 f2 b7 a4 h5 f4 c7 f3 e7 g2 b3 g3 Nd2 a3 e8N+ Kh6 Rh4 a2 Rf4 Ra7 Ne2 g1Q Bh3 f1N Bd7 g2 Ba3 f2 Qc2 Qh4 Bd6 Qgh1 Rc1 a1Q Qb2 g1N Rc2 Nh3 b4 Ne3 Qa2 f1R Nb3 Ng5 Qb2 Qc1 Na1 Rf3 Qa2 Ne4 Qb2 Nc6 b8B Rb7 Ba7 Na5 Bb6 Kh7 h6 Nac4 Ba7 Kg6 h7 Bg7 Qa2 Qb2 Bac5 Ngf6 Bb6 Rf8 h8B Ng8 Qa8 Bh6 Bhe5 Bg7 Bbc5 Kh6 Qa2 Rb8 Qa8 Rf7 Ba7 Nb6 Qc6 Bb7 c8Q Bh8 Q8c7 Bc8 Q7b7 Qg2 Qc5 Rg7 Nc1 Qg6 Ncb3 Qe6 Na5 Qef6 Bc7 Qc6 Qa8 Re7 Nb7 Bf6 Nd8 Bg7 Be6 Rd7 Bcd6 Rdb7 Bd7 Bh8 Rg4 Bf6 Bg3 Bg7 Rf4 Bf6 Ke2 d3+ Ke1 d2+ Ke2 d1B+ Kd3 Bc3 Be5 Qb1 Bd6 Bd2 Kd4 Bc1 Ke5 Ba3 Ke6 Qb2 Kf7 d4 Kf8 Ned5 Bf2 Na4 Bg1 Be2 Bb6 Bd3 Bbc7 Nab6 Qa6 Bf1 Qe2 Bh3 Qg2 Bf5 Be7 Bg6 Bcd6 Qh3 Bh4 Qh2 Be1 Qh4 Bg3
q1B1b3/3q1Rn1/Nrn3kN/4r2p/nb5r/bQ1qB2P/2Qn4/1NRB2KB b - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Kf2 a5 d4 e5 c4 f5 g4 Kf7 d5 f3 c5 f4 g5 b3 d6 b2 b6 e3+ Ke1 a4 c6 a3 b7 a2 d7 f2+ Ke2 f3+ Kd3 e4+ Kd4 e2 Ke3 e1R+ Ne2 Ra6 c7 Kg6 h3 Nh6 Nd2 b1N Qa4 Ba3 Qc2 Nc6 b8N Nc3 Nb1 Rb6 Bg2 f1N+ Kf2 Na4 Kg1 Nf5 Ng3 e3 Na6 e2 Be3 h6 Qb3 Ng7 Nf5 Bb7 c8B Nd2+ Bf1 Qe7 d8Q Qd7 Qdg8 Ba8 Qc2 Rh7 Qgb3 f2+ Kh2 Rh8 Bg2 f1Q Be4 Qf3 Rf1 Rh7 Kg1 Rh8 Bf2 Qfd3 Bh1 Bb7 Be3 Rh7 Nc3 Rh8 Rc1 a1Q Nc7 Ba6 Nb1 Bc4 Na6 Bf7 Bd5 Be8 Bh1 h5 Nh6 Rf8 Qb5 Rf5 Qb4 Rd1 Qbb3 e1B Rf2 Re5 Rf4 Qc3 Rf7 Qa5 Nc7 Qa8 Na6 Kh7 g6+ Kh8 Bg2 Qe2 Kh1 Nc4 Be4 Ne6 Qca2 Rd4 Bd5 Beb4 g7+ Kh7 Qac2+ Qd3 Kg1 Nd2 Bf3 Kg6 Bd1 Bc5 g8B Rf4 Rf8 Ng7 Bd5 Rh4 Bh1 Bcb4 Rf7
b1qbnrB1/K6n/Q1NB1BN1/3R2P1/B3R1qp/3bnqR1/3rb1Qk/4r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 a5 b4 h5 e4 d5+ Kd3 f5 c4 a4 b6 f3 c5 f2 c6 a3 b5 a2 c7 h3 b7 h2 g5 h4 b6 f4 Bb2 f3 Bh3 Kf4 e5 Kg3 e6 f1B+ Qe2 f2 e7 Nd7 e8B Ngf6 b8B Be7 b7 Nh7 Nf3 Ndf6 Nbd2 Bg4 Nc4 Qc8 Na5 Bd8 Ba4 Ne8 Ne5 Rf8 Re1 a1R Nac6 Bg2 Rd1 f1B Rg1 h1Q Ng6 Kh2 Bc3 Bf3 Be6 Bh5 Rd2 Re1 Bg8 Rf2 Ba1 Bgf3 Rg3 Bhg4 Kc2 d3+ Kb3 d4 Kb4 Bd5 Kc5 Qf3 Rd1 d2 Kb6 d3 Bf6 Rg2 Qf2 Be2 Qf1 Bf5 Rc1 d1N Rc4 d2 Rf4 Ra5 Re4 Rc5 Ka7 Ne3 Nf4 d1Q Ng6 Qe6 c8Q Rc2 Nge7 Rd2 Bd6 Rf2 b8R Bg6 Qb7 Qc8 Qa6 Qfg4 Rbb4 Rf4 Re5 Bgd3 Rbe4 Rf3 Ng6 Rf4 Nb8 Ba8 Nc6 Qb3 Rd5 Qc3 Bd4 Rf8 Bg7 Qf6 Bh8 Qff4 Bf6 Qff3 Qg2+
Nn3nB1/2Q1R2Q/qb6/q1RnrP2/1kr2n1p/BN2qBbb/5Nr1/5K1N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 g4 Ke7 c5 d5 b6 d3 b7 d4 c6 Kd6 c7 d2+ Ke2 a4 b5 Kc5 g5 e3 g6 e4 g7 h3 b6 a3 Qe1 d1R Qg3 h2 Nf3 a2 Qe1 h4 Bb2 Rh5 Na3 Nf6 g8B Nfd7 Nb5 Rc1 Nc3 Kb4 Ng5 Bc5 Bg2 d3+ Kf1 d2 Rb1 d1N Bf3 a1Q Nh3 Qa6+ Ne2+ Nc3 Nf2 Re5 Ra1 Rc2 Qb1 Nd5 Ra5 Rc4 Ng3 Nf8 Qd3 Bg4 c8N Qe8 Rg1 h1N f5 Bd4 Rc5 Bh3+ Rg2 Qea4 Qb1 Q4a5 Ba3+ Kc3 Qb5 Ra7 Qd7 e2+ Kg1 e1B Qh7 e3 Kf1 Nbd7 b8Q e2+ Kg1 Ra8 Qc7 Nb8 b7 Kb3 Nb6 Kc3 Nf1 Ng3 Rh2 Ra7 Na8 Nh5 Ng3 Nhf4 Nh1 Be3 Rg2 Bd4 Rg7 Be3 Rc6 Bb6 Re7 Kb3 Rc5 Kc3 Nd3 Bg3 Ndf2 Kb3 Bb2 Kb4 Bc1 Nc6 b8N Rb7 Nd7 Nb8 Nf6 Ra7 N6e4 Rb7 Nd2 e1Q+ Nf1 Qe2 Nd2 Qe3 Nb3 Ra7 Qd6 Rd7 Qc7 Rd6 Bb2 Rg6 Ba3+ Kc3 Bg2 Bh2+ Kf1 Rg3 Bb2+ Kb4 Rg7 Bg4 Bf3 Rg2 Rf7 Bh3 Re7 Bg3 Ba3+
1rr5/Q1Q2N2/1B2bR1n/1K1P2b1/pQ2qnn1/qq1QRb1B/1R6/N4qrk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 Ke2 Ke5 g4 c5 d3 f5 b6 h5 b7 a5 g5 h3 g6 a4 g7 h2 b5 h4 b6 c3 Nd2 h3 Ra2 f3+ Ke3 c2 Qe1 c4 Qd1 c3 Rb2 f2 Qe1 f4+ Ke2 f3+ Ke3 Qd5 Qe2 Nd7 Nb3 Be7 Na1 Nh6 g8Q Rb8 Qg4 Qb3 Qd1 Nf6 d4+ Kd6 Kd3 Be6 e5+ Kd5 Qf4 Nfg4 Be3 c1Q Qg3 Rbc8 b8Q Bg5 b7 Rhe8 Bg2 f1R Qa7 Rb8 Qde1 c2+ Qc3 Rbc8 b8Q Re1 Bf1 f2 Nf3 Rf8 Rg1 h1Q Qbc7 h2 Bh3 Rb8 Rf1 Rfc8 Qf4 Qg2 Qf8 h1B Qb4 Rd1+ Nd2 Re1 Ne4 Qf3 Nd6 Qg2 Rb1 Qca3 Rb2 Rb1 Nf7 c1N+ Kd2 Ke4 d5+ Kf3 Qd3 Qba2 Kc2 Ne2 Kd2 Kg3 Kc2 Kh2 Bb6 Nf4 Kd2 Bf5 e6 Qe4 e7 Bf3 e8R Q2b3 Re6 Rc1 Rf6 Rb1 Re1 Be6 Re3 Kh1 Qbd6 Qb5 Qb4 Rg1 Kc2 Qa2 Kc3 f1Q Bc5 Qb7 Bd4 Qa3+ Kc4 Qf5 Bb6 Qe4+ Kb5 Qb3 Qc5 Qe7 Qcc7 Qc5+ Ka6 Qcc3 Kb5 Qa3 Rb1 Qcb3 Rb2
1Q2qrR1/1q5Q/1b1K4/P1NB1pb1/2qn3n/2B2b2/q1NBr1k1/2QrnQ1R b - - 0 1 illegal: No possible last move
bBr2q2/nN1Q2nb/1bR3Pr/4QpBq/4Q1N1/6Kn/BBr1qR2/2r1k3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 g5 a5 c5 h3 c6 d3 b6 Kd4 c7 f3 b7 h2 b5 h4 b6 h3 e5 d2 e6 a4 e7 a3 e8Q a2 Ba3 Ne7 Bb4 Bf5 c8Q Bh7 g6 Nf5 Qdc2 d1Q Bd2 Ng7 Q2c6 f5 Na3 Qe2+ Kg3 Kd3 Qc8e6 f2 Bg5 d4 Qa4 Nc6 b8B Bc5 b7 Bb6 Kh4 Na7 Bg2 f1R Qe5 Rc1 Bf3 Rc2 Qed7 Qf8 Rf1 a1R Rf2 Rac1 Nc4 Kc3 Bc7 Rc8 b8B Kd3 Nd6 Kc3 Qd5 d3 Nb7 d2 Qae4 d1Q Bg2 Qh5+ Kg3 Qd2 Nf3 Qe2 Re1 h1B Ne5 h2 Bf1 Bf3 Ng4 Bg2 Rd1 Bf3 Rd4 Bg2 Qde5 h1N+ Kf4 Bf3 Bd6 Bg2 Rc4+ Kd2 Ba3+ Ke1 Rc6 Bf3 Bb2 Bg2 Rf3 Nf2 Kg3 Nh3 Rf4 Bg8 Rf2 Rh6 Qa4 Bh1 Bg2 Bh7 Bd5 Bf3 Ba2 Be4 Re6 Bc6 Qae4 Bd5 Nd8 Bb7 Rc6 Ba8 Nb7
1Q4R1/q1qNkr2/B2b2pr/n2P1BrR/2bq1Q2/b1n3nB/5B2/n4NKN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d6 b5 Kf2 f5 d4 c5 e4 f3 a4 c4 h4 c3 a5 g6 e5 f4 e6 b3 a6 b4 e7 b2 a7 c2 h5 g3+ Ke1 f2+ Ke2 g2 h6 b3 h7 f3+ Ke3 Nd7 Rh2 Ba6 Qd2 Nc5 Ne2 g1Q Rh5 Bc4 Bh3 Qd1 Ng3 f1R Qh2 f2 Nd2 b1N Nh1 b2 d7+ Kf7 Qg3 Qc7 d8Q Nc3 d5 b1Q Qc8 Qbb7 e8B+ Kf6 Ba3 c1B Bed7 Qg4 Qe8 Rd8 a8B Bd6 Bf5 Nb3 Bc5 Rd7 Rb1 Qa7 Bb7 Na1 Ba6 Ne7 Rb8 Rg1 Bb6 f1N+ Kf2 Qe4 Qf4 Rg5 Rc8 Ng3 Kg1 Qd3 Bf2 Qdd4 Nf1 Nc6 Rd8 Bca3 Ra8 Rf8 h8N Rh7 Nf7 Na5 Ne5 Rh6 Qb5 Ke7 Nd7 Rf6 Rg8 Rf7 Qb8
3K2Q1/B1RQ1r2/3q1P1N/N2b2r1/q3B3/3Qnrr1/p1bQnq2/kBn1b1R1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 a5 g4 d5 b4 h5 f5+ Ke5 b6 e3+ Kd3 a4 c5 a3 g5 a2 c6 h3 b5 e2 c7 e1N+ Kd2 h4 f6 d3 Ke3 d4+ Kd2 h2 g6 h3 g7 Nh6 g8B Be6 c8Q Ng4 b7 Nc6 b8Q+ Qd6 b6 Ne3 b7 Bd5 Qb3 Rh7 Qd1 Ra5 Qbc7 Rf7 b8Q Ke4 Qb2 e5 Ne2 Ra3 Rg1 h1R Q7b8 h2 Rg3 Rg1 Q8b6 h1R Qcd8 Rh3 Rg7 Rf3 Qa7 Rg5 Qad7 Be7 Q8e8 Bd8 Bg2 Ba5+ Qc3 Bb4 Bh1 Rb3 Ba3 Ba5 Bc5 Ra3 Kc1 d2+ Kb2 d3 Ba7 Nd4 Qdc2 d1B Q2d2 Bc2 Ng3+ Kf4 Qed8 e4 Nf5 Ke5 Nh6 Bb4 Qb3 Ne2 Bh7 Rfg3 Qg8 Rf3 Qd1 d2 Qd3 Ba5 Qc1 d1Q Nd2 Rc3 Nb3 Rfg3 Qa6 Qd4 Qd1 Qa4 Qd2 Bb4 Rc1 Rf3 Na5 Nd3+ Ka1 Ra3 Rg1 Ndc1 Kb2 Rc3 Qad3 Ra3 Qd1 Be1 Q1d2 Rfg3 Qgd8 Nc4+ Ka1 e3 Qb8 Bb1 Qh3 Rc7 Qg6 Nc3 Bb6 e2 Qg8 Bf2 Ba7 e1Q Rf7 N3e2 Qhc8 Ne3 Kb2 Ng4 Qgc2 Rae3 Bd3 Re7 Bhe4 Ref3 Q8c7 Ne3 Qcd8 Nf4 Kc3 Qe2 Qb3 Be1 Bc2 Qg2 Qc4 Qf2 Qd3 Re6 Rb7 Re7 Qd7 Rf7 Bc5 Qac6 Kb4 Nfe2 Ra7 Qb8+ Bb6 Qa4+ Kc5 Qc7+ Qc6 Qb8 Rd7 Qc7 Ba7 Qd6+ Kb6 Rg2 Qb5 R2g3 Bcd3 Kd4 Kb7+ Qc5 Kc8 Qb6 Rc7 Qc5 Qd1 Kc3 Qd7 Qc6 Qa6 Kb2 Qd2+ Ka1 Kd8 Qd6 Qc4 Bc2 Qb3 Bd1 Bb1 Bc2 Qbd3
r6b/7K/Q1N1RP2/1n1krn2/nrq2R2/qp1b1B2/1Q2q1b1/BbN1NNB1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 c5 Kf4 b5 Kg5 h5 f4 h3 d4 h2 a4 b3 g4 b4 d6 Ke6 Kg6 c4 g5 e3 d7 e2 f5+ Kd5 f6 e1R a5 e5 a6 h4 a7 e4 Ba3 e3 Qd3 e2 Qc3 h3 Nd2 b2 Ngf3 b1N Bg2 b3 Bb2 Qe7 d8N Ba6 Nb7 Nd7 Rf1 h1B Nc5 h2 Nd3 Na3 Nc1 Rh4 Rf2 Nh6 Nf1 Qe6 Kh7 Nc5 g6 Nb5 g7 Na4 g8N Bg7 Ra2 Rf4 Ba1 Bh8 Qb2 c3 Ra3 c2 Ne7+ Ke4 d5 Nf5 d6 Qc4 Nc6 Kd5 d7 Rg4 Nd3 c1Q d8B Re4 Bb6 Re5 Bh3 Bg2 Bg4 h1B Ra2 Rd1 Nfe1 Be4 Rf3 Bg2 Rf4 Rd2 Bf3 Rc2 Qc3 Qa3 Qb2 Rd2 Nc1 Rd4 Bh5 Bb1 Bf3+ Rde4 Bg1 Qd6 Nc2 e1Q Ra3 Qee2 Ne1 Rf8 Ra2 Qa3 a8Q Rfe8 Qb7 Ra8 Qc8 Qcd3 Bh5 Rb4 Bf3+ Qde4 Qb7 Na7 Qc8 Bad3 Qa6 Nb5 Qc3 Qf2 Re2 Qc5 Qb2 Qc4 Bg4 Qf3 Re3 Qe2 Bf3+ Ke6 Ree4 Kd5 Bg4 Re6 Bh5 Rd6 Re8 Re6 Re7 Re4 Re6 Re5 Bf3+
3qrrBN/1n2Qr2/2nBp3/3Pnk1q/3q1bNR/R1Q4N/2K5/bQ1Q1br1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Ke6 b4 h5 d4 a5 Kd2 c5 g5 a4 d5+ Kf5 g6 a3 g7 e6 b6 a2 b5 c3+ Kc2 c4 b7 h3 b6 h4 Qe2 e3 Qg2 h2 Bb2 e2 Qf3 e1N+ Kc1 h3 Na3 c2 Qc3 Ne7 g8N Bh6 Nf6 Rf8 Ng4 Nd7 b8Q Ba6 b7 Nf3 Nb5 Nc5 Ba3 Nc6 Qc7 Bg5 b8Q Nfe5 Qe7 Nb7 Bd6 Ra7 Kb2 c1R Be2 Rf1 Kc2 Re8 Bd1 Ke4 f5 Bf4 f6 Kf5 f7 Rf3 Rb1 a1B Rb3 Ra8 Ra3 Rf1 Qb2 c3 Qb1 Rf8 Qa7 Re8 Qd4 Ra7 Bf3 Ra8 Qdd1 Rf2+ Kb3+ c2 Qc7 Rc8 Qa5 Rc7 f8Q+ Rf7 Qe7 Rff8 Qc3 Rf1 Qa2 c1Q Be2 Qe3 Kc2 Qf2 Qab1 Qd4 Bd3+ Qe4 Nf3 Rf7 Ng5 Rff8 Rg1 h1R Rg2 h2 Nh3 Rhg1 Rd2 h1Q Rh2 Qf3 Rh1 Kg6 Rh2 Kh5 Rh1 Qd4 Bh7 Rf7 Bg8 Kg6 Bc7 Rff8 Nd6 Bb5 Nf7 Kf5 Bd6 Be2 Ngf2 Qh5 Ng4 Rf3 Nh8 Bf1 Rh2 Rfg3 Nf6 Rg7 Ng4 Rh7 Nhf2 Rg7 Rh4 Rgf7 Nh3
1b1RNB1k/4bn2/K1bP1rr1/2q1Rnn1/6qQ/1Rr1QBq1/p2Q2nR/6N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 h5 e4 f5 Ke2 Kf7 d4 Kg7 g4 c5 g5 a5 b6 f3+ Kd2 a4 Kc3 h3 e5 h4 e6 a3 d5 f4 b7 h2 e7 a2 e8R f2 g6 h3 b5 f3 b6 Qd6 Na3 Nh6 Qb3 Nc6 b8Q Ra6 b7 Ne5 Qb6 Nhf7 Bd3 f1R Bc2 f2 Ba4 Bd7 Qb5 Ng5 Qd8 Be7 b8Q Nef7 Qdc7 Qg3+ Nf3 Bc6 Rd8 Re8 Qb3 Kh8 Bb5 Rf8 Be3 Rc1+ Qc2 f1N Qf4 Rg8 Qa7 Rb6 Bd2 Ne3 Rb1 Ng2 Rb3 Ra6 Re1 h1Q Re5 h2 Qe4 Qd1 Qh4+ Nh7 Bg5 h1N Bh6 Nhg5 Ba4 Qg1 Nb5 Qg4 Qb6 Ng3 Nc7 Nf5 Ne8 Qf2 Ng1 Qfg3+ Kb2 c3+ Ka3 Rf8 Qd2 c4+ Qc5 c2 Kb4 Rb6+ Ka5 c3 Qa3 N7d6 Qc5 Rf6 Qce3 Ndf7 Bb5 Re1 Bc4 c1B Be2 c2 Bd1 Bb2 Bf3 c1Q g7+ Kg8 Qec3 Re3 Qcd4 Kh7 g8R Rc3 Q4e3 Bba3 Rg6 Bad6 Rg8 Bb8 d6 Rb4 Rg7+ Kh8 Ka6 Re4 Reb5 Ree6 Re5 Ne4 Rg5 Rg6 Rh5 Ref6 Qhg5 Qc2 Rh2 Qc1 Qh5 Neg5 Qh4 Qa3+ Ra5 Qab4 Re5 Qc5 Bf8+
Rb2Q1rB/N2r1B1R/q2pQ1q1/4n2k/1Pbb2n1/1NQ3K1/r1qR1n2/5Rn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 b4 Kf7 e4 Kg6 g4 a5 c4 h5 g5 a4 c5 f3 e5 f4 e6 d3 e7 a3 e8R d2 c6 h3 b6 h2 c7 a2 b7 h4 Re5 h3 Qe2 d1Q Qb5 Nf6 Re7 Nc6 b8R Ba6 c8Q Qb6+ Qc5 Rg8 Na3 Ne5 Bg2 Qc2+ Ne2 Bc4 Re6 Bd6 Qd8 Kh5 Rg1 h1R g6 h2 Rc8 Bb8 g7 d6 Re8 Qa6 Nb5 Qg6 Rb1 a1B Na7 Bd4+ Be3 Qc6 Nc1 Qc7 Nb3 Ng4+ Ke1 Qc6 Qd7 Qce4 Qe6 Qc2 Rf1 Rg1 Rc7 h1N Rd1 Nhf2 Rd2 Rh1 Rec8 Rg1 Bh1 Rd8 g8Q Rd7 Qge8 Rg3 Nc6 Ra2 Na7 Nh3 Rg1 Ba6 Qec4 f2+ Kf1 Nh6 Re2 Ba1 Qce6 Rd8 Qec4 Qf7 Nc6 Rg8 Nca5 Qfg6 Nd2 Ba7 Ra8 Bb8 Qcc6 Nd3 Bd4 Nf7 Bh8 Nfe5 Ndb3 Bd4 Rg7 Rd7 Rd2 Bb5 Ke2 f1N Bd5 Ne3 Bf7 N3g4 Qce6 f3+ Kf1 f2 Kg2 f1Q+ Kg3 Ndf2 Qc3 Qc4 Rf1 Ng1 Nc6 Ba6 Na7 Qc6 Na5 Bc4 Nb3 Qa6 Rh7+
1qn1bb1Q/1RR1n1BN/P1N1rQ1q/1B5n/7B/2q1p1r1/4KB1r/1Q1rb1k1 b - - 0 1 illegal: No possible last move
1KbnQ1n1/B1R1bbQ1/P5N1/qB1rp1b1/2NRRRr1/7n/qr1q1k2/Q7 b - - 0 1 illegal: No possible last move, all moves rejected
4r2b/3q3p/Rn1qb1B1/n3b2K/1P1B3R/QQ1r1NNQ/1n3N1q/1n2rNk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 b4 Ke4 c4 a5 g3 f5+ Kh5 d5 g4 f3 e3 d3 c5 f2 g5 d2 c6 a4 c7 a3 g6 a2 g7 h3 b6 h2 b7 d4 Bb5 f1R Nf3 f4 Be8 d3 Qb3 d1N Bb5 d2 Bb2 Be6 c8N Qd7 Bc1 Nc6 b8N Na5 Ne7 Nb2 Nbc6 d1Q Qa3 Rd8 Nf5 Bd6 Ne5 Ne7 g8Q Nc8 Nd3 Nb6 Qf7 Be5 Nf2+ Kd5 Qg8 Re1 Bd3 Qd2 Qg2 Rhe8 Qh3 Qd1 Bc2 Kc4 e4 Q1d6 Ng3 Bh8 Ng5 Kd4 Nd2 f3 Bd3 Ke3 e5 Rc8 Bf5+ Rc3 Bg6 Rd3 Ndf1+ Kd4 Rg1 h1Q Bd2 Qh2 Rh1 Bd5 e6 Be5 e7 Be6 Rc1 a1B Rc6 Bh8 Nd1 f2 Be3+ Ke5 Bc5 Kf4 Bd4 Be5 Nf3 Bh8 Nfe3 f1N Nf2 Nd2 Nef1 Nb1 Qb3 Rg8 e8Q Be5 Qa8 Re8 N1d2 Bh8 Be5+ Ke3 Bf6 Nac4 Qaa3 Na5 Bg7 N2c4 Bf6 Be5 Bg7 Nb2 Bf6 N6c4 Ra6 Nb6 Ndf1+ Kf4 Qaa4 Bc3 Nfe4 Qf2 Qg2 Qg1 Rh3 Qh2 Qaa3 Bd4 N1d2 Ke3 Rh4 Bc3 Qh3 Bd4 Neg5 Kf2 Ndf1 Be3 Be5 Bf4 Bc3 Bfe5 Bd4+ Rde3 Qf5 Kg2 Nh3 Rc3 Nf2 Rd3 Ng5 Kg1 Qg4 Bf7 Qh3 Be6 Nf3+
2R2N1q/1Rn2pBk/q7/3Q4/bN1rqr2/2b2RrP/RrN2b2/n1n1QB1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 Kg2 d5 e4 g5 c4 f3+ Kf2 a4 b4 a3 b6 a2 h3 d3 b7 g3+ Ke3 d2 b5 g2 Kf2 d4 c5 d3 b6 g4 c6 g3+ Ke3 f2 Kf3 Na6 b8Q Nh6 e5 Bg7 e6 O-O b7 Nf5 e7 Kh7 e8N Bd7 c7 Ba4 c8R Nc7 Be2 Bc3 Qa7 f1Q+ Qf2 Ra6 b8R Rf6 Qe1 d1R Bh6 d2 Na3 Rb1 Bg7 d1R Bc4 Rb2 Rb7 Rg8 Ne2 g1Q Nf4 g2 Ne6 Rd4 Nc2 Qh2 Qe4 g1B Qd5 Qe5 Ba6 Qd3+ Kg2 Ng3 Qe1 Bf2 Rf1 Ne2 Kh1 Rff4 Bb5 Nc1 Nf6+ Kg6 Ba6 Qdd6 Bc4 Qa6 Bb5 Qh5 Bc4 Qh8 Bb5 Be3 Rf3 Qe4 Bf1 Bg1 Qc6 Bf2 Nd5 Kh7 Ndb4 Rf5 Qd5 Rf4 Bf6 Rg3 Bg7 Rb3 Rb1 a1N Rb2 Be8 Ra2 Ba4 Bc4 Rb1 Bf1 Rb2 Nf8+
Kb1RqQ1q/B3P1r1/1Nr1B3/2b3Q1/1Rp1b1Q1/4Nbnn/4r1Qq/1k1n1N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 h5 g5 c5 d5 a5 b6 f5+ Ke5 f3 e4 a4 b3 f2 d6 a3 Kd5 c3 g6 h3 g7 c4 e5 h2 b7 f4 d7 h4 e6 f3 Bg5 h3 Bg2 f1R Bd2 f2 Be3 c2 Qh5 c1B Qd1 a2 Bh6 Bf4 Nc3 Ka3 b4 Kb2 b5 Nc6 b8Q Ra6 b6 Bb7 Qg4 Nce7+ Kc5 Rh7 Nf3 Be4 b7 Nf6 g8Q Nh5 Nd2 Rg7 Nd5 Qe8 d8Q Re1 Ne3 Re2 Rhd1 h1B Ndf1 h2 Bh3 Ng6+ Qe7 Rd6 Qeg5 Ng3 Qa8 Bhf3 b8N h1Q Nd7 Qh2 Nb6 Be7 Qf8 Rc6+ Kb5 Bed6 Ka6 Bc5 e7 Bb8 Kb7 Nf4 Rd3 Bg2 Rd8 Bgf3 Rad1 a1Q R1d5 Bd4 Ra5 Kb1 Ra6 Bc5 Ra4 Bbd6 Ka7 Qc3 Qb7 Bb8+ Ka8 Qb2 Q4h5 Qd4 Be6 Nh3 Qgg4 Qf6 Bf4 Qh4 Qhg5 Qhh5 Be5 Qh8 Bd4 Rc7 Bd7 Bd6 Bb5 Bf5 Nc8 Bg2 Ba7 Bc5 Nb6 Rc8 Qbf3 Be4+ Bc6 Bh1 Bd5 Rc6 Bg8 Nh5 Qfg3 Bhf3 Qg2 Ng3 Be6 Nh1 Ng3 f1N Ned5 Ne3 Nf1 Nd1 Nde3 Ng3 Rb4+
3N1k2/1BKpb2Q/1NPQ1b2/qN2rNr1/5q2/n2nqr2/2nR1nb1/R1R1B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 f5 Kc4 a5 Kd5 a4 b4 a3 g4 a2 e4 d3 c4 d2 e5 f3 c5 h3 b6 f2 b7 h4 e6 f4 b5 f3 e7 h2 Kd6 h3 b6 Nf6 g5 Ne4+ Kd5 Nd6 g6 Ra5 g7 Na6 g8N Nc4 b8N Na3 Kd6 Bb7 Bb2 Rh5 Nc3 Rg5 Nh6 Nb4 Na4 Nbc2 Bg2 f1Q Nf5 f2 Qb1 d1N Bc3 Nb2 Be1 Nd3 Ne2 Bc6 Rg1 h1Q b7 h2 Ned4 Qb6 Bd5 Qe4 Nb5 h1N Rg2 Qa7 Nb6 Qe3 Kc7 Qa6 Bf3 Kf7 e8R Be7 Rh8 Be4 Rhh2 Kf8 Rg1 Qa7 Nc6 Qa8 Be2 Bg2 Nd8 Qa6 c6 Qa8 Nbd6 Re5 b8Q Qa4 Nb5 Qa5 Bb4 Qfc1 Be1 Qf4 Rf1 Qce3 Rg1 Bd5 Rhg2 f1R Rh2 Rf3 Bf1 Nb2 Rd2 Nf2 Nh6 Ne4 Nd4 Nbc4 Kb7 Nb2 Bg3 Nb4 Qd6 Be6 Kc7 Bh3 Ba6 Bg2 Qd3 Nbc2 Rgc1 Nb1 Be1 Nba3 Bc8 Nf2 Qh7 Nbd3 Nhf5 Re4 Rab1 a1B Nb5 Bf6 Bb7 Re5 Ra1
1qB2b2/2PNq1nQ/1N4r1/1Qrn3p/4RqQ1/B1r1Qqk1/b1bK1n2/RR6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 g4 Ke5 b4 f5 b6 a5 g5 d5 b7 h5 c5 a4 b5 f3 b6 f2+ Ke2 f4 g6 d3+ Kd2 a3 g7 f3 c6 Kf4 e5 h3 c7 h2 e6 d4 e7 a2 e8R Nd7 b8Q Rh6 b7 Ndf6 Qc2 Ra5 Ba3 Be6 Qc4 Nd5 Qc6 Ngf6 g8Q Rc5 Qa7 Rg6 b8Q Kg3 Qf7 Qe7 Rc8 Ne8 Be2 f1R Qh7 f2 Qaa6 Ng7 Qaa4 Rfc1 Nc3 f1Q Nd1 Qf4+ Ne3 R1c3 Nf3 Bg8 Rhe1 h1N Qe6 Nf2 Ne5 Bf7 Rab1 a1Q Re8 Bg8 Bg4 Qb2+ Qc2 Qb7 Nd7 Qb3 Qc8 Qb8 Qb3 Bf7 Ra1 Bg8 Reb1 Bf7 Ke1 d2+ Ke2 d1B+ Kd2 d3 Qb5 Bc2 Qeb6 Qh4 Re4 Qe7 Bf5 Qfh4 Nc4 Qf4+ Ke1 Bg8 Qe6 Bf7 Ncb6 d2+ Ke2 Bg8 Qe5 Be6 Qd4 Bf7 Qe3+ Kh4 Ne5 Nb4 Bd7 Ba2 Bc6 Nd5 Bb7 Qa8 Qe6 Qc8 Ned7 Qb8 Qd4 Kg3 Bc8 Kh2 Qe3 Kg2 Re1 Kh2 Qg4 d1Q+ Kf1 Qdf3 Reb1 Q3g3 Ke1 Qgf3 Qg1+ Kh3 Kd2 Kh4 Qg5+ Kh3 Qf5+ Kg3 Qg4+
B3rq2/1Pn3Br/NQ2R3/2N2Bb1/n2BR2b/KQ1b4/1rkp1r2/2nq1Q1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kf6 c4 Ke5 Kc2 a5 Kb3 d5 g4 f5 b6 h5 c5 f3 b7 a4+ Ka3 h3 b4 h4 g5 f2 b5 d3 b6 Kd4 e5 d2 g6 f4 e6 h2 g7 f3 e7 h3 e8B Rh7 Bc4 f1R Ra2 f2 Bg6 Nd7 b8B Be7 Bh5 Bh4 c6 Ne7 g8Q Qf8 c7 Ba6 c8Q Nc5 Bb3 Kd3 Bd6 d4 Be6 Nd5 Qd8 Nc7 Ne2 Bb5 Qe1 d1Q Bb2 Kc2 Bf5+ d3 Bf3 Bg5 Qf6 Re8 Nbc3 Rg1 Be5 f1R Bb7 Rg2 Bd4 Rff2 Ne4 Ba6 Rg1 h1N Nc1 h2 Ba8 Ng3 b7 h1Q Qf1 Ne2 Nb3 Nc1 Qb6 Rgh2 Rg4 Rhg2 Kb4 a3 Qd5 Na4+ Nec5 Bc4 Re4 Bh4 Ra1 a2 Ka3 Rh2 Rb1 a1B Bg7 Ba6 Bbd4 Bc3 Ra1 Bd2 Qg8 Bdg5 Ra2+ Kb1 Rae2 Rhg2 Re1 Rb2 Re6 Rgf2 R1e4 d2 Qf7 Bd3 Qg8 Qf6 Na6 Kc2 Nbc5 Qf8 Rf6 Ne2 Qd5 Nc1 Rfe6 Qg2 Qa2 Qh1 Qab3+
2Nb1QR1/Pq1Q4/1bq1RNBb/2r5/3pb2n/2rQBR1r/K2n4/2qkQn2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 h4 g5 a4 b5 f4 d5 f6 e5 a5 g3 h5 g4 a6 d3 h6 g2 c5 g3 f5 d2 c6 Ke3 a7 e4 c7 Nd7 h7 Qe8 f7 Bh6 f8Q Ngf6 Bc4 Bb7 c8R Ng4 f6 Nde5 f7 Ng6 Rc6 Rc8 Nc3 Nh2 Bb2 Nh4 Nb1 Nf1 Rca6 Qc6 Nf3 g1Q Qg8 g2 Ka2 b3+ Ka3 Ba8 Bc1 b2 f8Q b4+ Ka2 b3+ Ka3 Bb7 Nc3 b1Q Qff7 b2 Bd3 Kf2 Qd8 e3 Be4 e2 Na4 e1B Rh3 Qh1 Qa5 g1B Qd7 Ba8 Qb3 Ke2 Ng5 d1R Bg6 Rd3 Be3 Rc3 Rf3 Qc1 Nb6 b1N+ Ka2 Nbd2 Ne4 Qg2 Qc4+ Kd1 Nf6 Bg3 Qab4 Bc7 Qd3 Bd8 Qbe4 Rc7 Nc8 Qb7 Qe5 R7c5 Re6 Qc6 Rf5 Qe4 Rf3 Qb4 Rb1 Qbb7 Rb5 d4 Rb6 Bh2 Re8 B2f4 Rg8 Bh2 Qee7 Bhc7 Ra6 Qe4 Re6 Qec6 Qee8 Bb6 Rg7 Rf8 h8Q Rf7 Rg8 Rg7 Bf5 Rg3 Bg6 Rh3 Qee7 Nh2 Qhg7 Nf1 Qgf8 Qb8 Bg1 Qb5 Qed6 Be4 Qg3 Qc6 Be3 Qbb7 Qe1+
4B3/4r3/qBrkQ3/1BbrN1Kb/1n1NRPb1/np2n1Qb/bQ4Rb/B7 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 b5 Kf4 c5 g4 h5 d4 e5+ Kf5 h3 f4 h4 a4 h2 a5 c4 d6 b3 d5 b4 a6 c3 g5 e3 a7 e2 g6 e1B g7 c2 Ra6 h3 Ra5 b2 Kg4 e4 Qf3 e3 Ne2 b3 Nd2 b1B Nc3 e2 Na4 Nh6+ Kh5 Qf6 g8B Bg3 Rg1 h1B Nc3 e1N Bb5+ Nc6 Nc4 h2 Ra4 Ba2 Rg2 Rh7 Ne2 Re7 Nd4 Nf5 Bf7 Ne3 Bb2 c1R Ba1 N1c2 Qg4+ Qe6 Kg5 Na3 Qf5 Rb8 a8Q Rd1 Qb1 Rb6 Qb2 Rd2 Qa6 Rd1 Rg1 Bf3 Rg2 h1B Bh5 Bh2 Be8+ Kd8 d7 Kc7 Rb4 Bg4 Ne5 Kd6 d8B Bd7 Rc4 Nb4 Qc8 Rc6 Bb6 Bh5 Qa6 Qf7 Qc8 Bh3 Qg4 Qh7 Qg3 B3g4 Nc2 Qd3 Re4 Qe2 Nd4 Qf1 Re2 Bhf3 Rg2 Bh3 Ba7 Rf7 Ba4 Bfg4 Nf5+ Kc7 d6+ Kc8 Bb6 Rd5 Nd4 Qa6 d7+ Kb7 d8Q Bc5 Qd6 Re7 Qf6 Kb8 Bb5 Kc8 Ba7 Kc7 Qf5 Kd6 Bb6 Nac4 Qc8 Na3 Qe6+
2b2BNb/K2b4/Q1b1b2N/2Qp2rb/2qP3n/rnN2Bnk/2r1R3/2RBB3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 Kf2 Ke7 c4 Ke6 e4 h5 g4 f5 d4 a5 e5 h3 g5 h4 b6 b3 b7 a4 c5 a3 c6 b2 c7 a2 g6 h2 g7 f3 Ke3 f2 Nd2 b1B Ne2 f4+ Kf3 Kf5 e6 h3 e7 Nh6 e8N Rg8 Qa4 Nc6 b8B Na5 Bg2 f1N Ba7 Ng3 Qc4 Nb3 Bc5 Ra3 Rf1 h1B Be7 h2 Nc3 Bd3 Qa4 Bc4 Nde4 Be6 N4f6 d6 Rb1 a1R Ng4 R1a2 Rf2 Rc2 Bd2 Bcd7 c8Q Qc7 Rg1 Qc4 Nef6 Kg5 Ra1 Kh4 Rc1 Nhf5 Qc5 Bc8 Re2 Bed7 Kf2 f3 Nh6 Be6 Ke1 f2+ Kd1 f1B Qa6 Bed7 Bf3 Kh3 Ke1 Nh4 Kf2 Bg4 Ke3 Bge6 Be1 Bhg2 Kf4 d5 Ke5 h1B Kd6 Bcd7 Kc7 Bc6 Bd6 Be7 Ne8 Bf6 Kb8 Bc8 Bf8 B6d7 Bh5 Bf3 Ka8 Bfg4 Ka7 Bge6 Bf3 Be5 Nf6 Bhg2 Rd2 Bd3 Bd1 Bf3 Rf2 Bh5 Re2 Rh8 g8B Bc6 Qb5 Bdf5 Bf7 Rg8 Qc5 Rg5 Nfg8 Bh8 Bg6 Bfg4 Be4 Bed7 Bh1 Bge6 Bf3
5bRN/2n2BpQ/3Nr3/2k2qr1/5Pr1/BKb3QB/Q2rrRb1/Q3nr1n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 a5 b4 d5 f4 Kd7 h4 Kd6 c4 e5 Kc2 a4 h5 e3 b6 e2 h6 e1N+ Kb2 d3 b7 g3 h7 a3+ Kc3 d4+ Kb3 a2 b5 g2 b6 d2 Kb2 d3 Nc3 e4 Nf3 g1R Nb5+ Kc5 Nh4 e3 Kb3 e2 Nd6 Qd7 Bh3 Na6 b8Q Ne7 b7 Rg4 Ng6 Nc7 Rh2 Ra6 Rf2 Nf5 Qa8 Ng3 b8Q Bb7 Bb2 Qf5 Ba3+ Kb6 Qc2 d1R c5+ Kc6 Qba7 d2 Qc3 Nh1 Qg3 Ra5 Rc1 a1B Qa6+ Kd5 c6 Bc3 Q8a7 Rg8 h8Q Rc5 Qhh4 Rh8 Qa8 Rh6 Nh8 Re6 Qh7 Kd4 Ra1 Rc1 Rb1 d1R Rb2 Rd2 Rc2 Nb5 c7 Bg2 c8B Nc7 Bd7 Rcd1 Be8 Rce5 Bf7 Rb1+ Bb2 Kc5 Qa1 Nf3 Q1a2 e1R Re2 Kb6 Nc8+ Kc5 Q8a6 Re7 Be8 Rdd7 Bf7 Qd3 Bh5 Reg5 Qe6 Qf5 Bf7 Re8 Rcd2 Be7 Rf2 Rbd1 Rde2 R7d2 Nd6 Rf1 Re4 Rde1 Ra4 Re3 Ra8 Ree1 Qe4 Ree2 Qeb1 Ne1 Qba1 Qb1 Rc8 Qf5 Nb5 Bd6 Bc1 R8e3 Rg8 Bf8 Nd6 Re6 Ba3+
N1K1bNbQ/P2p1q2/3R1n1R/1rb2B1B/7Q/R3B2b/n1n2R2/r3bkrb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 h5 c4 b5 g4 b3 a4 b4 a5 e5+ Kb5 b2 c5 h3 c6 b3 f6 h2 f5 d3 a6 d2 g5 Ke3 g6 Kf2 c7 h4 Kb6 h3 f7 e4 g7 e3 f6 e2 Qc2 d1B Qe4 Qe7 Nf3 Rh5 Nh4 Bb7 c8R Nc6 Kc7 Nb4 Ng6 e1B Bd3 Rb5 Nd2 b1B Nc4 b2 Nb6 Bb3 Qg4 Ra7 Na8 B1a2 Kb8 b1N Rc6 Na3 Qf4+ Kg2 Be3 Nac2 Re6 Be4+ Kc8 Bf5 Rc6 Qe6 Qh6 Bd6 f8Q Bc5 Rd6 Qe7 Qh8 Bf7 Qd8 Be8 f7 Bc4 f8R Bfe6 Rhf1 h1R R8f6 h2 Nf8 Rg1 Rh6 Bh3 Bf5 h1B Rf4 Qe6 Qh4 Nf6 g8B Qe7 Bgh7 Bg8 Bhg6 Qe6 Bh5 Qf7 Rfd4 Kf1 Rd2 Ra5 Rg2 Rb7 a7 Rbb5 Rad1 Ra4 R1d3 Ra1 Ra3 Na2 Rf2+
1BB1Nq2/QQ2n1r1/n3Q3/nKRpb3/3Rn3/1P2nq1b/1nN3kN/2rnN3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 g4+ Ke4 e3 f5 b6 d5+ Kb5 h5 c4 a5 c5 a4 g5 a3 g6 h3 b7 f3 g7 h2 c6 a2 c7 f2 Bh3 f1Q+ Kb6 d3 Bd2 f4 Bc1 f3 Bg4 h4 Qc2 h3 Qb3 d2 Qa3 d1N Qa7 f2 Nf3 Ne7 g8Q Na6 b8N Rh7 Nc6 Bg7 Nb4 Be5 Qe6 Rg7 Nd3 Qf8 Na3 Qe2 Kb5 f1N Rb1 a1N Nc2 Nb3 Ra1 Na5 b3 Nb2 Ra4+ Nac4 Rg1 h1N Nh2 Qef3 Rb4 Nhg3 Bd2 Bb7 c8Q Rb8 Qcd7 Bc8+ Qdb7 Ra8 Bc3 Rb8 Bd4 Na5 Rg2 Ra8 Rd2 Rb8 Rc4 Bd7+ Rc6 Rc8 Bc5 Rc7 Bd6 Bc8 Rc5 Rc6 Bb8 Rc7 Bh5 Rc6 Ng4 h2 Rd1 h1N Nh2 Bd7 Bg4 Nf2 Qf7 Be8 Bc8 Bd7 Rd2 Nfd1 Qg8 Kf5 e4+ Kg5 Qe6 Kh4 Qf7 Bh3 Qe6 Bc7 e5 Ne4 Qd7 Kg3 e6 Be5 Qe8 Ng8 e7 Nfe3 Qf7 Rc7 e8N Ne7 Qe6 Rc6 Nf2 Kg2 Rd4 Rc7 Rc3 Rc4 Nd3 Ra4 Rc7 Ra1 Rc5 Rc1 Nde1+
1r1nR1nq/3r2k1/1b2r3/Qb1pq3/2N1Pr1B/2rrrBB1/1KB3NR/6RQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 f5 e4 Kf7 g4 h5 c4 a5 Kc2 f3 c5 d3+ Kb2 h3 g5 a4 b6 f2 g6+ Kg7 b7 f4 b5 h2 c6 d2 c7 h4 b6 a3+ Kc2 a2 Bb5 f1R Qe1 d1R Nf3 h3 Kc3 Ra6 Kb2 Rd3 Bc6 Bc5 Qd2 Bd7 c8B Re1 Ba4 Bb5 Nh4 f3 Qa5 f2 Na3 f1R Bc2 Ree3 Bg4 Rf4 Ng2 Nc6 b8B Qe7 b7 Bb6 Bh5 Nd8 Bf3 Qf8 Rg1 h1R Nc4 h2 Bd2 Rc3 Be1 Qe8 Rc1 a1R Bh4 Qe5 Rce1 Raa3 Re2 Red3 Bd6 Rh7 b8Q Ra8 Qc8 Rb8 Qh3 Rh6 Qb4 Ra7 Qa5 Rd7 Bc7 Kf8 g7+ Kf7 Rd1 Re1 Rf2 Re2 Rg1 Ree3 Rd2 h1Q Re2 Ne7 g8R Re6 Re8 Ng8 Rd2 Qh2 Rf2 Qh8 Be5 Qg3 Qh1 Qg5 Bd6 Kg7 Rd2 Rf5 Bdg3 Rf4 Ne1 Qf5 Rh2 Qe5 Ng2
b1b1b1BN/q3q3/B1PQr1p1/2nk3B/3bn1bb/3RQrb1/KN3B1N/1R6 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 c4 Ke6 Kc2 d5 Kb3 b5 f4 d4 h4 d3 a4 e3 h5 d2 c6 g3 a5 e2 c5 e1B a6 g2 a7 Rh6 c7 Na6 f5+ Kd5 f6 e5 f7 e4 Be2 e3 Ra4 Qe7 Ra5 Bg3 Ra3 Nf6 Bf1 e2 Kb2 e1B Nf3 g1Q Qe2 d1B Nh2 b3 Nd2 b4 Nc4 Ne4 Qe3 Re6 h6 Bg4 h7 g6 h8N Bg7+ Kb1 b2 f8Q Bd4 Rd3 Bd7 c8B Be8 Ka2 b1B+ Kb3 Bh4 Be2 Beg3 Nb2 Bc2+ Ka2 b3+ Ka3 Rb8 a8B+ Rb7 Qf6 Bd1 Qff4 Bh3 Bh5 Bdg4 Bd2 Bg2 Be1 B2h3 Nc4 b2 Bf2 b1B Nb2 Bc2 Qf8 Bca4 Ka2 Bac6 Qff4 Rb3 Qc7 Bb7 c6 Nac5 Bd7 Ba6 Bb7 Rc3 Bbc8 Bb7 Qb8 Ba8 Ba6 Qg2 Rb1 Qf3 Bb5 Qff7 Bc8 Qa7+ Bca6 Qfe7 Ba4 Rf6 Bd1 Bc8 Qbf4 Bhg4 Qc7 Rf3 Qcf4 Rc2 Qf8 Re2 Bb3+ Kd6 Bg8 Ke5 Nf7+ Kd5 Nh8+ Qe6 Qg7 Nd6 Qc1 Re5 Qf8 Nde4 Qch6 Qef7 Qe7 Re6 Qe3 Qf8 Qc7 Qe7 Qd6+
r1r2r2/3krR2/Qp2n2N/1q1R4/rQ1r1b2/B2nP1r1/q1BK1Bb1/2NQ1Q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 c5 a4 f5 g4 h5 g5 f3 a5 f2+ Kd2 h3 g6 c4 a6 h4 a7 b3 g7 c3+ Kd3 c2 e3 b6 d6 b2 d5 h2 Ra6 f4 Na3 b1Q Qh5+ Kd7 Qe5 h3 Ra5 f3 Bb2 c1R+ Kd2 Nh6 g8Q Rh7 Ra4 Qa2 Qf4 Na6 Qgg3 Nb4 Bd3 f1R Nb5 f2 Nd4 Nf5 Bc2 Ng7 Nf5 Nd3 Ra5 Qg5 Qg2 Ne6 Ba3 Bh6 Qb4 Bb7 Ne2 Rg1 Qf1 Rg3 Rg1 Ra1 Nc1 h1R Rb5 Rc8 a8Q h2 Qa6 Re7 Rg2 Qh5 Rg1 Bg5 Nh6 Bf4 Rg2 Rg1 Ra5 Rgg8 Rg7 h1R Rf7 Rh4 Rb5 R1g3 Ra5 Kd8 d7 Kc7 d8B+ Kd7 d6 Qb5 Bc7 Bg2 Bd8 Ra8 Bc7 Rgc8 Bb8 Kc6 d7 Rhg4 d8Q Rh4 Qf8 Kd7 Qd1 f1R Bd6 Rh5 Bb8 Rd5 Be5 Rd4 Bf6 Rg8 Bh4 Rf3 Bf2 Rfg3 Qg7 Rcf8 Qgg4 Rfc8 Qge2 Rgf8 Qef1 Rb1 Qc4 Rb4 Qc5 Ra4 Qb4 Qc6 Rg5 Qb5 Rd5+
1b2RQ2/1B1N1r1R/rn1B4/1K3Bn1/2N2kq1/1Q1n2nr/bQ1Pp3/1n1rQ1r1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 g4 Kf6 f4 a5 b4 e5 b6 h5 b7 c5 g5+ Kf5 b5 e3 b6 c3 g6 c2 g7 c4 Ba3 c1R Nh3 e4 Bc5 a4 Na3 c3 Ng1 c2 Be7 h3 Nb5 h4 Nf3 h2 Ne5 h3 Bc5 a3 Nd7 a2 Bd4 Ra6 Bb2 Nf6 g8B Nh7 Be5 Ng5 Bd6 Rh7 Ne5 Qd7 Bd5 Rf7 Ba3 Bd6 Rb1 a1R Qe1 Rd1 Bc6 Qe6 Bg2 Nd7 b8Q Qg6 b7 Nb6 Bd5 Be6 Nd7 Kg4 f5 Kf4 Bc6 Ba2 f6 Be5 Qg8 Bb8 Nd6 Qf5 Rb2 Qg4+ Bf3 Rac1 Nc4 Rb1 Bd5 Ra1 Be6 c1N+ Kf1 Ne2 Bf5 Nc3 Bb4 Rh7 f7 Nb1 f8Q e2+ Kf2 Rf7 Rb3 Na3 Re3 Rac1 Qh8 Nb1 Qb2 Rc3 Qg1 e1N Ke2 Nd3 Qe1 Bc7 b8Q Bd6 Rf1 h1N Bc5 Be5 Bd6 h2 Rg1 Rcc1 Rg3 Rc3 Rh3 Rca3 Rh7 Rb3 Qf2 Rg1 Qe1 Ng3+ Kd1 h1R Kc2 Rba3 Re2 e3 Bd5 Nc8 Q8b3 Nb6 Bg2 Rh3 Bb7 Rhh1 Reh2 e2 R2h6 R3a5 Re6 Rh3 Re8 Ra4 Be7 Bb8 Bc5 Na3+ Kc3 Nb1+ Kd4 Na8 Kd5 Nb6+ Kc6 Ra3 Kb5 R3a4 Nce5 Rc4 Bb4 Rc1 Bd6 Rd1 Nc4+
nbr5/1Nk1n1qr/6Q1/B1nb1p2/3n2b1/PQ1b1NK1/1N2N1Rn/Q1b1R2B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 g4 b5 e4 h5 d4 c5 e5 h3 e6+ Kc7 a3 h2 g5 c4 g6 f3 e7 h4 e8Q c3 g7 h3 Ra2 c2 Bd3 b3 Qe4 b2 Qf4+ Bd6 Qdd2 b4 Qe4 b3 Qee2 Nc6 Qdd1 Nge7 g8Q Qf8 Bc4 Bg4 Qe5 f5 Bd2 c1B Ne2 Rh7 Qg6 Rc8 Nbc3 b1N Na4 b2 Qb3 Qg7 Re1 h1B Kg3 h2 Bc3 f2 Ba5+ Kd7 Bb5 Bb8 d6 Nd2 d5 b1B Qa1 Nc4 Nb2 Nb6 Bd3 Kd8 Be4 Nd4 Bg2 Bd3 Bf3 Ba7 d7 Kc7 d8N Bb8 Nc6 Bg2 Ne5 Bh1 Bb4 Na8 Be4 Bg2 Nf3 f1N+ Kf2 Bh1 d6+ Kd8 d7 Kc7 d8N Bg2 Nb7 h1N+ Kg1 Nhg3 Kf2 Nh2 Bd5 Nh5 Bc6 Nf4 Kg3 Nfe6 Ba5+ Nb6 Nd2 Bd5 Nf3 Nc5 Ng5 Bg8 Bh1 Bd5 Nf3 Bb1 Na4 Qf7 Nec3 Qg7 Rg2 Bbe4 Ne2 Bd3 Bb4 Na8 Nb2 Nb5 Bc3 Nd4 Ba5+
2Rr1BBb/r2n4/rNKR1N2/P2R2Qn/4qBr1/Q2R4/pb1b1r2/kb3b2 b - - 0 1 illegal: No proof kernel
1n3Rb1/2Q2q2/1Np1nQn1/3P1B2/N1R5/2b1nbKQ/nrbbQ2B/rB2k3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 d4 Kd5 b4 Ke4 d5 a5 b6 f5 g5 h5 g6 a4 b7 f3 g7 a3 e3 c3 b5 a2 b6 f4 Ne2 c2 Nd2+ Kd3 e4 h3 e5 h4 e6 c6 e7 h2 e8Q h3 Qe1 Be6 Qd1 Ne7 g8B Ng6 Ba3 c1N Bh7 Qe7 Qe1 Bg8 Qf7 Bh6 Qf6 Qf7 Rb1 a1B Rb3+ Bc3 Qe6 Na2 Rg1 h1B Bd6 h2 Qf6 Bg2 Be5 h1B Rb4 Bh3 Qd1 Bf5 Rc4 Ra5 Bh3 Rb5 Qg7 Rb2 Qf6 Be4 Rf1 Bf5 Kg1 f2+ Kh2 f3 Kg3 Ke3 Bg4 Bc2 Bf5 Bg2 Nd4 Bh1 Ne6 Bg5 Nc5 Bh6 Qa1 Ke2 Na4 Bg2 Qh4 Bg5 Qh3 Be3 Ne4 Bed2 Nd6 Bh1 Nc8 Bg2 Kg4 Bh1 Bh2 Bg2 Rb1 f1N Re1+ Kf2 Re8 Ng3 Rf8 Ne2 Qd1 Nd4 Qa1 Nd7 b8Q Ne6 Qc7 Nb8 b7 Ke2 Qe7 f2 Ncb6 f1N Qc7 Ne3+ Kg3 Bf3 Qe5 Rb1 Qb2 Ra1 Qf6 Nd7 b8Q Ke1 Qc7 Nb8 Bd3 Ngf4 Bhe4 Ng6 Bf5 Rh4 Rc5 Rb4 Rc4 Bb3 Bb1 Bc2 Qa3 Rb2 Qae7 Ng7 Qee5 Ne6 Qe4 Ng7 Qd3 Ne6 Qe2+
1n2b3/Kp1br3/1n1bRrnk/N1Qbq2R/1B1R1N2/1P1bQ2n/2QB4/3Rn3 b - - 0 1 illegal: No extended proof kernel
kBn4b/3B4/1n1bR3/r3n2R/1B3r2/1BK1Rrqr/N1pn1P1Q/3NQ1nb b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 b4 Kd7 g4 e5 d4 c5 Kd2 Kc7 b6+ Kb7 d5 a5 d6 h5 g5 a4 b5 e3+ Kc2 c3 g6 e2 d7 a3 g7 e1N+ Kb3 h3 Bh6 c2 Ra2 c1N+ Kc4 e4 Bd2 h2 Be3 h4 Bg2 h3 Qd6 Ncd3 Nf3 Ra5 Qd4 Ne7 g8B Qc7 d8B Ne5+ Kc3 c4 Bf4 e3 Rd2 a2 Bh7 e2 Ng1+ N1f3 Bc2 e1N Re2 Nbd7 Qd2 Ka8 Bb3 Bb7 Re3 Rh4 Ne2 Nc8 Be7 Ng1 Nc1 Ne1f3 Qe1 Nd2 Bb4 Bd6 Bg3 Rf4 Bc6 Nb8 Bd7 a1B+ Kc2 c3 Na2 Nec4 Kd3 c2 Nbc3 Nc6 Nd1 Bh8 Re6 N6e5+ Kc3 Be4 b7+ Kb8 Be8 N4b6+ Bc6 Ka7 b8R Qg7 Rb7+ Ka8 Bd7 Qg8 Rc7 Qg4 Rc4 Bd5 Re4 Qg7 Bh4 Qg3+ Re3 Ngf3 Rf1 h1R Bd8 h2 Bc7 Rg1 Bb8 Rg2 Rg1 h1R Rf1 Rh6 Rh1 Ng1 Rh5 Rh2 Ba3 Rh3 Bb4 Nbc4 b6 Rhf6 Bc7 Bh1 b7+ Ka7 Bc6 Rf3 Bd7 R6f4 b8Q+ Ka6 Qb5+ Ka7 Bb8+ Ka8 Qc5 N4b6 Qc7 Rhh4 Qd8 Rh3 Qh4 Qg2 Qg3 Qh2 Qg2 Qg3 Qh2
kQ4r1/1N1r3q/r1Bn3B/b4RrN/q1rr3R/1b1P1B2/4pnQ1/NKB2b2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 b4 Kd7 f4 c5 g4 Kc7 g5 Kb7 b6 e5 g6 h5 d3 a5 Kd2 h3 Kc2 a4 b5 h2 g7 h4 f5 c3 f6 c4 f7 h3 Ne2 e3 Rg1 h1B Nd2 h2 Qe1 e4 Rg4 a3 Nf4 a2 Nb1 e2 Rg2 e3 Rg3 Qe7 Rg5 Ra6 Qd1 e1R Rh5 e2 Rh3 Bg2 Nh5 h1R Ba3 Nh6 g8B Ka8 Bc5 Nc6 Ba3 Na5 Rh4 Be6 Nd2 Nb7 Bc1 Nd6 Nb3 Ng4 Rb1 Qb7 Na1 Nf2 Rb2 Bgh3 Bg2 Reg1 Bc6 Rg5 Qg1 Bf1 Qg2 Be7 f8B Bd8 Bh7 Rhg8 Bh6 Rh3 Bhe4 Bd5 Nb3 a1Q Bf3 Qa4 Kb1 Rhg3 Ra2 R3g4 Na1 Rd4 Ra3 Qd1 Ra5 Qa4 Be8 Qh7 b7+ Ka7 b8N Ka8 b6 c2+ Kb2 Bc7 Nd7 Bd8 Nc5 Bc7 Be3 c1R Nb7 Rc2+ Kb1 c3 Rc5 Bb3 Bec6 Ra2 Rf5 c2+ Kc1 Ra3 Kb2 c1R Bd2 Rcc4 Kb1 Rdg4 Bc1 Rgd4 Nd8+ Nb7 Be8 Ra7 Bd7 Qc6 Be8 Nd6 b7+ Kb8 Bd7 R3a6 Be8 Qb5 Bec6 Ba5 Qh3 Kc7 Qg2 Kb6 b8Q+ Rb7 Qc7+ Ka7 Qc8 Rd7 Nb7 Qa4 Qc7 Ka8 Qb8+
bQ1R3N/b2RKR2/b3Bn2/r1Brr1Q1/1N3p2/1b3nP1/2bnqB2/1kR1n3 b - - 0 1 illegal: No possible last move, all moves rejected
3bQ1b1/Q5rk/BBR2Q1N/3nK3/P1rn4/pn1r1r1r/1NR3B1/1qr2q1B b - - 0 1 illegal: No proof kernel
bK2N3/N1B2Br1/4Q2b/2n1br2/PRNqpQ2/3r1nN1/Qr2rkr1/2Rq4 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 g4 h5 a4 e5+ d6 b5 d4+ e3 f3 Kg3 g5 h3 d5 b3 f4 b2 f5 h2 g6 h4 g7 b4 f6 e4 f7 b3 Bc4 e2 Qd2 e1R Nf3 h3 Qd1 Rh7 Nh4 Nf6 g8N Nfd7+ Kb5 c5 Na3 b1Q Be3 b2 Nh6 Ne5 d7 Bg7 f8Q Na6 d6 Bb7 Qc2 Re2 Bd2 Nf3 Ba5 Be5 N4f5+ Kf2 Rc1 h1R Ng3 h2 Qf4 Rd1 Ng8 h1R Bf7 c4 Nf6 c3 Nc4 R1h2 Ne8 Rg7 Bc7 Rg2 Kb6 Nc5 Qcd2 Rc8 Ka7 c2 Ra3 Rb8 Rb3 Ba8 Rb4 Rb5 Qd5 Qf6 d8N Rd3 d7 Qd6 Qc6 Qd4 Qe6 Qa1 Nc6 b1R d8Q Rb2 Qdd5 Qb1 Rd1 c1B Re1 Ra5+ Kb8 Be3 Na7 Qd1 Qff5 Bh6 Qf4 Qb3 Rc1 Qd1 Qe7 Ra6 Qed7 Rf6 Q7e6 Rf5 Nb6 Qe1 Qa2 Qd1 Nc4
Q1bBNB2/1Bn1Rrb1/R2r1q2/5nbp/n2P3n/k1QQb1r1/1b6/1Q2KN2 b - - 0 1 illegal: No possible last move, all moves rejected
3B2b1/2rbr3/4Bk2/r1BN1pR1/2n1PR1R/nbr1RQ2/1b1rqnK1/Q4N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 f5 e4 d5 c4 a5 g4 h5 g5 d3 b6 d2 b7 h3 b5 f3 g6 d4 b6 h2 g7 d3 c5 a4 c6 a3 c7 a2 Bb2 h4 Na3 h3 Bc1 Rh7 Nc4 Nh6 g8Q Bd7 c8R Bg7 Rc5 Nc6 b8R Bb2 b7 Ra5 Re5+ Kf6 Qe8 Ng4+ Kg3 f2 Ne3 Re7 Qe2 d1R Qf3 d2 Rc5 Nce5 Rc3 Nc4 Ne2 Na3 Rb1 a1R Nf4 Ne5 Bc4 f1B Be6 Bc4 Nf1 Ra2 Rg1 h1R Re3 h2 Kg2 Re1 Rc8 d1B b8B Bdb3 Ba7 Rd1 Ra1 Rd3 Bc5 Rc3 Qeh5 Qb6 Rh8 Qb5 Qhg4 Bd5 Rh4 Nec4 Qd1 Qa6 Qgf3 Qb5 Kh3 Qa6 Rg5 Rg1 Bd2 h1N Qb1 Nf2+ Kh2 Rh1+ Kg2 Rh3 Qe1 Rc1 Bdb4 Qb5 Bb6 Rc2 B4c5 Rd2 Rc1 Ra1 Rd1 Rc1 Bd8 Rc3 Rhg4 Rh7 Rh4 Ne5 Rc1 Qe2 Rc2 Nec4 Qa1 Be8 Bc8 Bg8 Be6 Ke5 Nd5 Rc7 Rf4 Bd7 Rc1 Rg7 Nh2 Re7 Rh1 Rh7 Nf1 Re7 Nb6 Kf6 Rhh5 Bc2 Rhh4 Bb3 Nd5+
1rN1NK2/2b1rRNb/Br1B2k1/rRQP2B1/p2bQ2r/3qn1b1/n6n/2B5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 Kf3 f5 b4 Kf7 g4 h5 d4 a5 e4 c3 e5 c2 b6 h3 g5 a4 e6+ Kg6 b5 h2 e7 h4 e8N c4 b7 h3 b6 c3 Bg2 Ra5 Be3 c1B Bd2 c2 Qe1 Na6 b8B Bc5 b7 Nh6 Na3 Nb4 Nc4 Na2 Bd6 Ng4 b8B Ne3 Ne2 Rh6 Rg1 h1R Bf1 h2 Nb6 Ba6 Rg2 Bd3 Rf2 Bb2 Rb1 c1B Nc8 Bb6 Ba7 Bc7 Ng3 Rg1 Bb6 h1R Nh5 Rh4 Nhg7 Bc2 Ba6 Rf1 Qe2 Re1 Rf1 Ba1 Rb5 Bb1 Kf2 f3 Kg3 f2 Bc5 Bc2 Ba3 f4+ Kf3 Qd7 d5 Bd4 Qc4 Qf5 Qc5 Bcb2 Bc1 Qd3 Bb4 Be5 Bbd2 Rh8 Rg1 Bbd4 Rf1 Kh7 g6+ Kh6 Rg1 f1N Rg5 Re2 Rf5 Rf8 Rf7 Kg5 Nh5 Bb1 g7 Kg6 Bb4 Rh8 Be1 Rb2 Bed2 Rh7 g8Q+ Rg7 Rb8 Rb6 Qh8 Rh7 Nhg7 Bc2 Qf8 Rh8 Qe7 Nh2+ Kf2 f3 Rb7 Bf6 Kg3 f2 Qe5 f1R Qe4+ Rf5 Rb8 Kh6 Rb7 Re5 Rb8 Re7 Rb7 Rh3+ Kf4 Bh4 Rb8 Rc6 Rb3 Rb6 Rb5 Be1 Qe6+ Kh7 Kg5 Rh4 Qe5 Bg3 Kf6 Rd7 Ke6 Kg6 Qf4 R8h7 Qe5 Rd8 Ke7 Bb1 Kf8 Bc2 Na7 Rdb8 Nc8 Bb1 Rf5 Bc2 Qe4 Bb1 Nh5 Rd7 Nhg7 Re7 Rf7+ Kg5 Rb2 Qf1 Rf4 Nd1 Qg2 Bh7 Qe4 Qd3 Rb5 Kh6 Rf5+ Kg6 Bg5 Ne3 Rf7+
Q1b2B2/RR1bRq2/N5k1/1Pr1n3/1Qr4b/1N1nKn1b/rQB3p1/1R1b3r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 Kf7 b4 g5 e4 d5 c4 a5 c5 f3 b6 g3+ Ke1 g4 Kd2 f2 b5 a4 e5 f4 c6 a3 h5 f3 b7 d3 c7 d4 h6 a2 h7 g2 e6+ Kg6 e7 g3 e8R Na6 b8Q Ne7 Na3 Nc5 Rb1 a1R Qa4 Qd7 Nh3 g1N Ng5 Ra2+ Rb2 Nc6 Qa5 Be7 Rh5 Ne5 Ne4 Bh4 Qb4 Ra4 Nb1 Qf7 Re7 Rd8 h8R Rd5 R5h7 Bd7 Bg2 f1R c8Q f2 Qa8 Re1 Bf3 f1B Bd1 Bfh3 Bc2 g2 Qc7 Rf1 Rb8 Bc8 Rb7 Bcd7 Qc3 Rc4 Rb4 Bc8 Ba3 Bhd7 Qb2 Rc1 Nbc3 Rca1 Nb1 Ngf3+ Kd1 d2 Ke2 d3+ Ke3 d1B Qca5 Be2 Nbd2 Rh1 Nb3 d2 Qa4 Ncd3 Nec5 d1B Na6 Bh3 Ra7 Rdc5 Reb7 Qf8 Rhe7 Qf7 Qc3 Kg7 Na5 Nfe1 Re6 Rd5 Rb1 Beg4 Nb3 Nf3 Bf8+ Kh7 Qa1 Rdc5 Ree7 Kg6 Qb2 Bgd7 Qb4
KQ2rb2/Nr2n1B1/3Q3r/pBPnb2R/k4Nq1/2nb1b2/n1RBB2n/4N3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 Kd7 b4 f5 h4 a5 c4 f3 e5 f4 b6 Kc6 h5 g3 e6 f2 c5 Kb5 h6 f3 e7 g4 e8B+ Nc6 h7 g2 b7 g3 b8N Qd7 Qd2 Nce7 Rh5 Bb7 Nc6 Nf6 Rg5 Qg4 Bf7 Re8 Be2 f1B Na3+ Ka4 b5 f2 Nf3 g1R b6 g2 Nfe5 Rh1 Bg8 g1B Rh5 Bh2 Ng6 Be5 Nf4 Ba8 b7 Rh4 Rf5 Rh6 b8Q Bb7 Be6 Rg8 h8B Rg7 Ra2 Rgh7 Bg7 Ba8 Kc2 d3+ Kd1 d4 Rc2 Nfd5 Na7 Bc6 Rh5 Bb7 Bc8 Ba8 Ba6 Bb7 Qc3 d2 Qd3 Bc6 Qg6 Ba8 Qgd6 Bb7 Bf3 Bd3 Be2 f1N Bb5+ Kb4 Nc4 Nh2 Ne3 Ba8 Neg2 Kb3 Ba6+ Ka4 Bc4 Nb4 Ba6 Bf3 Ne1 Nbd5 Rb2 Bb5 Kc2 d1N Be3 N1c3 Bd2 Bd7 Kd3 Na2 Kc4 d3 Rc2 Bf5 Bc3 d2 Bb4 d1N Bd2 Ka3 Kb5 Bg6 Bb7 N1c3+ Ka6 Bf5 Bc6 Bd3+ Kb7 Kb4 Bb5 Kb3 Ba6 Ka4 Ka8 Nc6 Bf6 Rb7 Bg7 Nce7 Bb5+
3R1Rr1/rr2R2b/Q1Kn3P/2bBQ3/nbp5/1k1b2nR/1bNq1B2/B4Nr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 b4 a5 d5 g5 b6 f3 Ke3 g3 b5 a4 h5 g2 h6 a3 b7 f2 b6 f4+ Kf3 a2 Qa4 g4+ Ke2 f3+ Ke3 g3 Ba3 c3 Qb5 c2 Qc4 c1R Bb2 Ne7 Rh3 Bf5 Ne2 g1R Nd2 g2 Nd4 Bh7 Nc2 Nd7 b8R Rg8 b7 Nb6 Qa6 c4 e5+ Kc5 e6 Rb1 d6 Nec8 e7 Ra7 e8Q Na4 d7 Nd6 Bg7 Rb4 Re1 a1B Ra8 Bf6 b8B Bb2 Bf6 Qa5 d8R Rbb7 Bd3 f1B Be4 f2 Bd5 Bfd3 Qe5 Be7 Nf1 Qd2+ Kf3 Bc3 Bh4 Bf6 Bc7 Bb4 Rf8 Bh8 Bcd8 Bg7 Bdf6 Bh8 Rad8 Bg7 Nh2 f1N Re3 Bh8 Bf2 Ng3 Nf1 Bg7 Qg5 Bh8 Ba1 Bb2 Re7+ Bd4 Nce3 Bb2 Qf5 Kd4 Nc2+ Kc3 Qe5+ Kb3 Qe3 B2a3 Kf4 Bc1 Ke5 Bb2+ Ke6 Rh1 Qe5 g1B Be1 Bgc5 Bf2 Ra8 Rh5 Rg1 Rh3 Rb5 Kd7 Ra7+ Kc6 Rb8 Rf4 Rbb7 Rff8
RQr1n2K/2B5/nqrq1Rbp/1B3r2/2Nk2Q1/q3Pq1R/1N2q1qB/b3R3 b - - 0 1 illegal: No possible last move
3bn1n1/3B1Rn1/1Q3QP1/1K1nqR1r/1B4Bn/1bBN3p/2qq1N1Q/n4rk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 e4 a5 g4 f5 b4 h5 b6 d5+ Kb5 f3 c4 f4 b7 d3 c5 Kd4 g5 d2 g6 Ke3 c6 Kf2 c7 a4 e5 d4 e6 h3 e7 h4 e8B d3 Nc3 a3 Qb3 d1N Ra2+ d2 Nd5 h2 Qb2 h3 Ra1 a2 Ne7 Rh5+ Kb6 Be6 b5 Nc3 Nc8 Be7 Ne2 d1Q Bd2 Qc2 Bd7 Bb3 Nc1 Na6 b8Q Nd5+ Ka5 Qe8 b6 Bd8 b7 Qe5 Nd6 Ra7 Rg1 h1Q Bc3 Qg2 Kb5 Qd2 Rb1 a1N c8Q Ra8 Qc6 Nac7+ Kc5 Qh2 Rg5 Ne8 Rf5 Kg1 Be2 f2 Qb6 f1N Nd3 f3 Kb5+ f2 Ne4 Ra3 Bd1 Nfe3 Bg4+ f1N Nef2 Ng2 Q8c7 Ra7 b8B Nh4 Qc4 Ra4 Qf4 Re4 Rf7 Re1 Bd6 Ng3 Bdb4 Rf1 Rd1 Ngf5 Re1 Qd6 Re5 Nfg7 Rg5 Qe5 Rgf5 Nc2 Qa1 Qg2 Qaa6 Na1 Qf6 Qge4 Qab6 Qee2 Bc5 Qed1 B5b4 Q1c2 Qh2+
1B1rQ3/rqnB2Rr/6P1/R1pRK3/2bNb3/2kr1qB1/2r1nb1N/1R1Q2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 h5 g5 f5+ Ke5 a5 e4 h3 b3 h2 b6 a4 b7 a3 d5 f3 d6 a2 g6 c3 d7 c2 Nc3 h4 Nce2 f4 Qd3 h3 Nc3 f2 Qg3 f3 Kd4 Qf6+ e5 Ra7 d8Q Nc6+ Kd5 Bf5 b8B Nd4 e6 Bc5 e7 Ne2 Bh6 c1R e8R Rc2 Qe5 Bb6 Bg2 f1R Nb5 f2 Re7 Rd1+ Nd4 f1B Bf4 Rd3 Bg3 Kc3 b4 Qf7+ Qe6 Nf6+ Ke5 Be4 b5 Ne8 Ngf3 c6 Rg1 h1Q Nh2 Qf3 Rg7 Nc7 Qee8 Bc5 Rb1 a1R b6 Rh7 Rb5 Rad1 b7 Bb6 Ra5 Bc5 Ng4 h2 Bh3 Qhg2 Qd6 h1R Nh2 Bb6 Bd7 R1d2 Nf5 Bf2 Nd4 c5 Qd5 Nf4 Qd6 Be2 Rb1 Rg1 Qc6 Bf1 Qa4 Ne2 Nf5 Ra2 Qd1 Rdc2 Nd4 Ra8 Ba7 Rd8 b8R Qh1 R8b2 Ra1 Bb8 Ra3 Rab5 Ra7 Ra5 Rdd2 Rb6 Qfg2 Bb5 Bd5 Bc4 Nf4 Ba6 Bfc4 Qb5 Rd3 Rd6 Ne2 Bc8 Ba8 Qa4 Qc6 Bh3 Qhf3 Be6 Qa6 Qe8 Be4 Bd7 Qb7 Rd5
n1KN1r2/5nNk/n3P1N1/p1QRn3/q1bBnR2/3r2b1/2Brr3/1R1Qb1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 Kf7 h4 Kg6 c4 a5 h5+ Kh7 c5 f3 h6 f2 e5 g3 b6 g2 e6 g4 b5 f4 c6 g3 c7 f3 b7 Na6 b8Q Bb4 b6 Qd7 b7 Qa4 Ne2 g1N Qb3 g2 Rh4 Be1 Be3 Bd7 c8R Bb5+ Kc2 Bc4 Na3 d3+ Kb2 d2 Kc3 d1N+ Kd4 Nc3 Ke5 d4 Kd6 d3 Nb5 d2 Kd7 d1R+ Qd6 Ne4 b8R Rd3 Rc5 Ra7+ Kd8 Rd7+ Kc8 Rd2 Qf8 R7d3 Ned4 Re2 Qd6 Red2 Be2 f1R Bd1 f2 Nf5 Nf3 Ng7 g1B Bd4 Bh2 Bc2 Ne5 Rf4 Bg3 Na7 Rh1 Qc3 f1N Nc6 Ne3 Rbb1 Rhh2 Nd8 Nd5 Qa3 Ndc7 Rd5 Rhg2 Qac5 Rge2 Qd7 Na8 Qdd6 Kg6 h7 Nh6 Qd7 Re8 h8N+ Kh7 Ng6 Rf8 Qdd6 Bef2 Rg1 Nhf7 Rab1 Be1 Qe7 Qa3 Qg5 Qa4 Qg4 Rg2 Qd1 Rh2 Rb3 Rhe2 Rb1
n2k2Qn/3b2r1/2RBpKbb/3Q1bPB/Nr1n1qb1/1r1B1r1N/8/3RN1B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 d5 g4 h5 c4 e6 b4 e3+ Kd3 a4 g5 a3 c5 h3 b6 h4 b5 h2 c6 h3 f5 e2 f6 e1N+ Ke2 d3+ Ke3 a2 Kd4 d2 Ke5 d4 c7 d3 b7 Nd7+ Ke4 Nh6 b8Q Rg8 b6 Nf7 b7 Nb6 Qa7 Qd6 b8B Rg7 Qda4+ Bd7 c8B d1B Qc6 d2 Na3 Bg4 Bca6 d1R Be3 Nf3 Rc1 a1R Qd5 Kd8 Rc6 Nh8 f7 Rdb1 Nc2 Ra3 Bfe2 Rab3 Bad3 Nd4 Ne1 Qg3 Qa2 Raa3 Bd6 Na8 Qd2 Qf2 Ke5 Bf5 Qc2 Qf4+ Kf6 Rb4 Qa4 Rc3 Bh5 R1b3 Ba6 Rd3 Bf2 Rf3 Bd3 Rh7 Qa6 Bh6 f8N Rg7 Be3 Be8 Nd7 Bf7 Ne2 B7g6 Rg1 h1B Nb6 h2 Na4 Bg2 Rh1 Bf1 Ng1 Be2 Nh3 Bd1 Rf1 h1B Bg1 Be2 Qb7 Bg2 Qf7 Bd1 Rf2 Bf1 Rd2 Bfe2 Bc2 Bb5 Bd3 Be2 Rb6 Bd7 Rc6 Re3 Rd1 Beg4 Qg2 Rg3 Qd5 Rf3 Qg8+
n1k1rQb1/qr1Nb1b1/n1Pb1rB1/Nb3nQ1/4R2r/B3N3/p4B2/KB4R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 Kc2 Kd7 Kb2 f3 e4 g3 h5 g2 b6 g4 e5 g3 h6 f4 b7 a4 b5 d3 b6 d4 h7 a3+ Ka2 d2 c5 d3 Rh3 f2 Ne2 g1B Nec3 g2 Bb2 f3 Rh6 Na6 b8B Be7 b7 Nf6 Rh2 Qa5 Rh5 Nd5 Bc1 Nb6 Qb3 d1R Nd5 d2 Bd3 f1R Ba7 f2 Ne3 Bh2 Qg8 g1B b8N+ Kc7 e6 Bhd6 c6 Qc5 Kb3 a2 Kb2 Rde1 Nd7 Rb8 Bf5 Rb7 Rh4 Na8+ Rb4 d1B Nd2 Ba4 Bb1 Bb5 Re4 Bgh2 Nb3 Bhe5+ Nd4 Qb6 Qg5 Qa5 Bc5 Bg7 Ba7 Re8 h8Q Rh1 Qg8 f1N Qf8 Ng3 Bc5 Nf5 Ba7 Bef6 e7 Ref1 Bc5 Rh4 Ba7 Rd8 e8B Bfe7 Bg6 Re8 Bc5 Rf3 Ba3 Kd8 Bd2 Qb6 Be1 Qa7 Bf2 Kc7 Qgf6 Kd8 Nb3 Rff4 Na5 Rf3 Ne5 Be6 Nd7 Kc8 Qe5 Bg8 Qef6 Nd4 Qg5 Rf5 Bc2 Rf3 Rg1 Rf6 Bb1 Nf5 Ka1
1R3n2/b2Q1qn1/R1P2N2/Np2b1Br/B4R2/rrQ3b1/b1NN1k2/Knrr4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb2 Ke4 f4 b5 a4 g5 h4 d5 h5 e5 f6 g3 f5 g4 h6 d3 f7 d4 a5 b3 a6 g2 f6 d2 c5 Ke3 c6 d3 h7 g3 a7 e4 Nh3 g1B Bg2 Qc7 Qf1 Be6 Nf2 Bd6 f8N Nh6 f7 Nf5 Bf3 g2 Rh5 Nd7 Na3 Ng7 Rh4 Be5+ Kb1 b2 Rf4 Bh2 Bd1 g1B Qh3+ Bg3 Ba4 Bb3 Ne6 Nf8 Nc4+ Ke2 Qf5 d1R Na5 e3 Ne4 d2 Nd4+ Ke1 Qe6 e2 Qd7 Be3 Nf6 Qb7 Nf3+ Kf2 Ra2 e1R Nd4+ Kg2 Nc2 B3d4 Ne4 Re3 Ra3 Rf1 Ra1 d1R Nd2 Bc4 Ra3 Rb3 Ra2 Rb8 a8R Ba7 Ra3 Re8 Rb8 Rff3 Ra2 Kf2 Ra3 Re6 Ra1 Rh6 Ra2 Rg8 h8Q Rhh1 Qhh3 Rh8 Ra1 Rh5 Ra2 Nfe6 f8N Ra3 Nh7 Nf8 Nf6 Bd5 Qd6 Qf7 Qb4 Rhe1 Qc3 Rb3 Ra3 Rf1 Ka2 b1N Ka1 Rh1 Ra2 Be6 Ba3 Rc1 Be7 Rhd1 Bd8 Rb2 Ra3 Ba2 Qd7 Rb3 Nh7 Rb2 Bg5 Rb3 Nf6 Rb2 Qb4 Rh4 Nac4 Rg1 Bb3 Rgd1 Ra6 Rh2 Ba4 Rh5 Rg4 Ra3 Na5 Rbb3+ Qc3 Bh4 Rd4 Bhg3 Rf4+
1Brrn3/2Q2Q1P/BNr2r1N/r1b3k1/7b/pRR5/b1Kn1NBq/b2N2n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 d5 c4 a5 e4 g5 h5 f3 b6 d3 b7 f2 c5 a4 b5 d4 c6 a3 b6 g3 h6 g2 h7 g4 e5+ Kg5 c7 f5 e6 f4 e7 f3 e8B g3 Ra2 Bg7 Ba4 Nc6 b8Q Ne5 b7 Ra5 Qe2 Qd6 Qa8 Be6 c8N Nf6 b8N Ne8 Ra1 Ba2 Kd1+ d2 Kc2 d3+ Kc3 Qh6 Qb7 Qh2 Nb6 Bf6 Bb2 d1R Nc6 d2 Qc4 Rc1+ Bc2 d1R Qc7 Rd2 Q4f7 Rd8 Ba6 f1N Ne7 f2 Nf5 Nd2 Nh6 f1R Nh3+ Kh4 Qb7 g1B Qbc7 Bc5 Nf2 g2 Rg1 Kg5 Rh1 Qg1 Rh3 Qh2 Rd3 g1B Rf3 Rcd1 Be4 Bg7 Rd3 Nef3+ Kc2 Rde1 Beb7 Re6 Be5 Rc6 Nc3 Rg8 Ncd1 Bh8 Nh1 Bgf2 Rc1 Ng1 Rb3 Bh4 Nhf2 Rf8 Bg3 Ba1 Be5 Re6 Bg2 Rc6 Qc4 Rff6 Q7f7 Rcc8 Bb8 Re1 Qc7 Re4 Q4f7 Ree6 Rc3 Red6 Rb1 Rc6 Rbb3
2b2bNb/2b2BNp/NPbk1r1q/Q2q2R1/rr1Bn3/4n2Q/1b5N/1B1RK3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 g4 e5 c4 Ke7 f4 d5 b6 a4 g5 d3 g6 h3 g7 d2+ Kf2 a3 b5 h2 c5 a2 b7 e3+ Ke2 d4 c6 e4 c7 Ra4 f5 Na6 b8Q Nf6 g8B Qd5 b6 Nb4 Qe1 d1R Bf7 Kd6 Nd2 Nc2 Rb1 a1B Ngf3 Bb2 Rg1 h1Q Nb3 Qh6 Qa5 Rg8 Bg2 Rf1 Nc5 Rg4 Nh2 Rf2+ Kd1 d3 Na6 d2 Bf1 Rff4 Bd3 Rg6 Qa8 Rfg4 Ke2 d1B+ Kf1 Rh4 Rg5 e2+ Kf2 Rb4 Be3 e1B+ Kf1 Bf2 Bd4 Bf3 Rd1 e3 Qb8 Ne4 f6 Bg3 Qa8 Na3 Bb1 Nc4 Qb8 Be5 Ke1 e2 Qa8 Ne3 Qb8 Bb7 Qc8 Bc6 Qh3 Bg4 Be8 Bc8 f7 Be7 f8N Bh8 Ne6 Rf6 Ng7 Bf8 Bf7 Nf2 Kd2 Ne4+ Kd3 e1B Ke2 Nf5 Kf1 Bg3 Ke2 Be5 Ke1 Ne3 Rg6 Ra4 Qg3 Nd2 Nf5+ Kd7 Rg8 Qb3 Qh3 B8b7 c8N Bc7 Be5 Rhb4 Nce7 Qd5 Bd4 Ne4 Rg5 Bc8 Ng7+ Kd6 Ng8
rQ4q1/2nkR1P1/1B1b1Kp1/q1n5/b3B1NQ/bb2QNBb/1Q3q1R/br6 b - - 0 1 illegal: No proof kernel
RB2k3/6p1/2Qn3B/nrQR3b/qbR1N1nb/5K2/1bPN1RB1/rrbr4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 d5 f4 e5 b4 a5 h4 d3+ Kf2 g3+ Ke3 d2 f5 a4 f6 d4+ Ke2 a3 b6 d3+ Ke3 g2 b5 a2 h5 Ba3 b7 Bg4 b6 Qd7 h6 Nc6 b8B Bh5 b7 Na5 h7 Ne7 Bb2 Nf5+ Kf2 Nd6 Qc1 d1R Rh2 d2 Ke3 Qa4 Nh3 g1R Bg2 Rg8 Kf2 e3+ Kg3 e2 h8R e1B+ Nf2 e4 f7+ Kf8 Kf4 e3+ Ne4 e2 Rh7 Ke7 f8Q+ Kd7 Bf6 Bh4 Bg5 e1B Bh6 Bb2 Qf5+ Ke8 Qc5 Ba3 Qb2 Ra7 Qbb6 Bc1 Rh8 Ra6 Qbc7 Rb6 Rh7 Rb5 Q7b6 Rf8+ Ke3 Rff1 Qbc6+ Kf7 Rh8 Rh1 Rd8 Rfg1 Rd7+ Ke8 Na3 Rf1 Nc4 Rhg1 Rb1 a1B Rb4 Baf6 Bf3 Bfb2 Rf2 Bhf6 Bg2 Bfc3 Rb3 Bb4 Rc3 Rh1 Rf4 Bh4 Rf2 Rde1+ Kf4 d1N+ Ncd2 Ne3 Rc4 Ng4 Kf3 Rd1 Bc7 Nc8 b8R Rfe1 Ra8 Rhg1 Ra7 Nd6 Ra8+ Rb8 Re7+ Kf8 Ra6 Rb5 Nf1 Rd3+ Be3 Bcd2 Bb8 Ra1 Ra8 Rd5 Re5 Rd4 Nh2 Rgb1 Bh6 Bdc1 Nf1 Rd1 Rd5 Ke7 Nfd2 Kd8 Qa6 Ke8 Qac6+
2k3BR/2b2Pb1/5bb1/B3N1nQ/2rNrb1K/2Q2QNn/2pQq3/1nR1rr2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 f4 e5 Kf2 a5 d4 h5 b4 c5 d5 a4 f5 a3 d6 e3+ Kg2 a2 Kh3 e2 b6 e1B f6 c3 f7 e4 b7 c2 g5 e3 b5 c4 b6 e2 g6 c3 g7 Ra4 Bf4 c1B Bh2 c2 Be5 Qe7 Bc3 Bf4 Qc1 Nf6 g8Q Nd5 Bd4 Nc6 b8Q Beg3 b7 e1R Bd3 Nd8 Bh7 Rc4 Qa7 Ne6 Bg7 Nc3 Na3 Nb1 Bc3 Bg7 b8Q+ Bb7 Qd4 Be4 Qbb6 Bg6 Qa8 Re8 Qf3 Kc8 Qa5 Bf6 Bg8 Ng5+ Kg2 Qe3 Qcd2 Re4 Ne2 Bh2 Ng3 Qe2+ Qff2 Bg7 Nb5 Rf1 Bb4 Bf6 Q4c3 Re1 Rg1 Rf1 Nd4 h3+ Kh1 h4 d7+ Kb8 d8N Kc8 N8c6 Bc7 Nh5 Bhf4 Ng3 h2 Kg2 h1N Ne5 h3+ Kh2 Re1 Rg2 Rf1 Qff3 Nf2 Qd5 Na3 Rd1 a1B Ba5 Nb1 Rc1 Bg7 Rg1 Re1 Rf1 Bb2 Kg1 h2+ Kg2 h1R Qc5 Rh4 Rh1 Rg4 Rh7 Rh4 Rh8 Rhh1 Qd5 Rhf1 Qh5 Rc5 Qdb3 Rc4 Qcf3 Ba1 Qbc3 Nfh3+ Qf2 Qd1 Ndc6 Na3 Qb4 Nh7 Nf3 Baf6 Nfd4 Nb1 Qff3 Nf2 Ne5 Ng5 Qbc3 Qe2 Nh1 Be3 Kg3 Bf4+ Kh4 Nfh3 Ng3
1n1Q3b/4Np2/n1n2BP1/3N1BrN/K1R5/b2bnbQQ/1Rr2n2/Nqk4r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kf6 b4 Kg5 g4 d5 c4 h5 Kc2 a5 Kb3 a4+ Ka3 h3 e5 h2 b6 h4 c5 d3 b5 d4 e6 d2 e7 d3 e8Q f3 b7 Kf4 b6 f2 g5 h3 g6 Bg4 Ra2 Bf3 Qb5 Ke3 Qa5 Ne7 c6 Rh5 c7 Rg5 c8N Nec6+ Ne7 Qd6+ Kb2 a3+ Kb3 Qe6+ Ka4 Qf5 Rc2 a2 Ne2 a1B Rc4 Bh8 Nd4 Qe4 Bg2 f1B Qb3 B1e2 Ba3 d1N Nc3 Kd2 Bb2 Ne3 Rb1 h1R Nc2 h2 Na1 Nc2 Ncd5+ N2b4 Bh3 Bf1 Bf5 Qe1 Qa7 N4a6 Bf6 B1e2 Qa3 Qd1+ Rb3 Qb1 Rb2+ Kd1 Qd6 d2 Qg3 Bd3 Qh3 Re1 Qg3 h1N Qh3 Nf2 Qg3 Nd7 b8Q Rh1 Qd8 Rc8 b7 Ndb8 Qd4 Rc7 Qdh4 Rc8 Qhh3 Rc7 Rcb4 Kc1 Rg4 d1N Rh4 Nd7 b8N Ne3 Re4 Nce5 Rh4 Rc2 Rf4 Nc6 Rc4 Nde5 Nd7 Ncb8 Nc5 Nec6 Ne6 Bde2 Nef4 Bd3 Ng8 Be7 Nh5 Ba3 Nge7
bqnB2Qb/3KpQ1b/1kB1Qr2/3R4/1b4R1/1nN1b3/qB1BnP1r/3Nb3 b - - 0 1 illegal: No possible last move, all moves rejected
B1r1r2N/2RPn1N1/Q7/2q1rp1q/n1k1B1rb/2NRr1B1/1Brn1KQ1/3b4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 a5 d4 h5 b6 c5 b7 a4 g5 c3 e5 Kd5 b5 a3 e6 f3 b6 a2 e7 c2 e8B f2+ Ke2 c4 g6 h3 g7 h4 Bd7 h2 Bdh3 c3 Bg5 c1R Be7 c2 Qd3 Bg4+ Nf3 f5 Qa6 Nd7 b8Q Qc8 b7 Nc5 Bfg2 f1N Kf2 Na4 Bf6 Qc5 Qg3 Rc8 b8B Ne7 g8N Nd2 Nh6 Re1 Nf7 Re5 Rd1 c1R N3g5+ Bf3 Bg7 h1Q Ne6 Rc2 Qg4 Rg8 Nh8 Re3 Bf6 Rg5 Qg3 Rg4 Ng7 Re8 Rc1 Qd1 Bh1 Re5 Bf1 h3 Bd3 h2 Qg2 Re3 Bg3 Re5 Ne6 Bh6 Ng7 Bg5 Qf1 Bh4 Qg2 Qb5 Be4+ Kc4 Nc3 Rc8 Rab1 a1R d5 Ra3 d6 Be2 Nd5 Re3 d7 Bf3 Rb3 Re8 Qa7 Qc5 Rd3 Be2 Nc3 Rc8 Qf1 Bf3 Bg2 h1R Ba8 Be2 Bge4 Rg1 Qg2 Bf3 Ne8 Rg8 Ng7 Rge8 Rb1 Bh5 Rb7 Qg4 Qb6 Qh3 Qd6 Bd1 Rc7 Qg4 Qc6 Qh5 Qa6+ Kb3 Qh1 Rg8 Nb5+ Kc4 Qh2 Re6 Bb2 Rge8 Nc3+ Kb4 Qh3 Re5 Qf1 Bf6 Bf4 Rg4 Qh3 Bh4+ Bg3 Kb3 Qg2 Kb4 Qa5+ Kc4 Qa6+
QbRrb3/1p1R2r1/r2B2NQ/2b2N1k/N1nrBB1n/3r2q1/n1KN1P2/b7 b - - 0 1 illegal: No possible last move, all moves rejected
1bKB1Q2/P2RNBB1/1N1qprb1/2B2nr1/1Nn1k2Q/Rr6/2b2n1n/3nb3 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 a4 h5 g4 b5 d4 e3 a5 c4 d6 e2 d7 e1B a6 h3 f3 c3 d5 h4 d6 h2 a7 c2 Be2 h3 Ba3 c1N Qb3 Nh6 Ke4 Rg8 Kd5 Na2 f4 Nc6 f5 Ne5 Nc3 Rg5 Bf1 Nc4 Kc6 Ke5 f6 Nf5 Nd5 Ke4 f7 Nc3 Nf3 Nd1 Qa4 b3 Bc5 b2 Ra3 b1B Nd4 b4 Nc2 b3 Ncb4 b2 Nb6 Bc2 Be2 Bg7 f8B Be5 Bg7 b1R Rg1 Qf8 Kc7 h1N d8Q h2 Bf1 Qf6 Qf8 Nhg3 Kd8 h1N d7 Qh6 Rg2 Bf4 Rd2 Nhf2 Rd6 Rb8 Kc7 Qg6 d8B Rb3 Bh3 Ba6 Bf1 Rb7+ Kc8 e6 Rd7 Bb8 Be2 Nf1 Bf3+ Kf4 Be4 Nh2 Bc6 Qf6 Bf3 Qe5 Be2 Rh5 g5 Ke4 g6 Rg5 Bh5 Qd6 Bh8 Qf4 g7 Qd6 g8N Bb5 Ne7 Bc6 Rc7 Be8 Bg7 Bg6 Rd7 Bh7 Bf7 Bg6 Na2 Rf3 Nbd5 Rbb3 Nab4 Nd4 Nb6 Rf6 Qb5 Nf5 Qc6+ Qd5 Qd6 Qd2 Qg3 Qd6 Qh4+
2Q1q3/B1QBq3/q1q3rr/3Q4/R1QNn1r1/NKbbNk1q/4rPp1/5n1R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kf6 b4 Ke5 c4 Kf4 Kc2+ e3 b6 d5 h5 a5 b7 g5 b5 e5 b6 a4 h6 e4 h7 g3 c5 a3 c6 g4 c7 a2 Rh3 d3+ Kc3 d4+ Kb2 g2 Nc3 d2 Na4 g3 Nc5 e2 Rh1 e1Q Nd7 e3 Qh5 d1Q Bd2 d3 Nf3 g1R Bh3 Ne7 Nd4 Nd5 Bb4 e2 Be7 d2 Qg6 Ra4 Qg7 Qe8 Bd8 Bb4 Bf6 Ne3 Qf8 Na6 b8Q Qc1+ Kb3 d1Q+ Nc2 Bc3 b7 Nf1 Qb4+ Kf3 Qc4 Qd3 Nb6 Bf5 c8Q Qde3 Bg7 Bd3 Qbc7 Qh6 Bf5 Qh3 b8N Qch6 Nd5 Qhc6 Nde3 Rg2 Rd1 a1Q Na3 Qe7 Qd5+ Re4 Qc4 Rg4 Bd4 Qee8 Bd7 Rg6 Nac2 Qa5 Na3 Nc5+ Ka2 Rg1 Ra1 Ne4 Kb3 Qaa6 Ra2 g2 Q8d8 Rhg8 h8Q Rg4 Qh5 Rg6 Qdc8 Qe7 Ba7 Qe8 Rh2 Rh1 Qg5 Qhh8 Rh7 Rhh6 Qgb5 Qe7 Qbd5 Qhe8 Ra1 Qc1 Rh8 e1R Ra2 Re2 Rh7 Qcf6 Nc6 Qfh8 Ra1 Rf6 Ra2 Rhg6 Rh1 Qh3 Nb5 Rh6 Ra4 Rfg6 Na3 Ba5 Qcd4 Qcc5 Q4c4 Bc3 Nd8 Qcd6 Ne6 Qdc6 Nd4+
4qB1N/rRb2Q2/N2QR1Rn/6nK/b1n1qb2/2p1nr1P/1R2Q2k/n2b1B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 e4 Kd6 b4 Ke5 d3 a5 b6 g5 b7 c5 b5 f5 h3 f3 Kg3 a4 b6 f4+ Kh2 a3 Bd2 f2 Qa4 f3 Kg3 c3 Qc6 c2 Rh2 c1B Bg2 f1N+ Kf2 a2 Nc3 c4 Qg6 Ra7 Na4 c3 Nc5 Ne3 Kg3 f2 Ne2 f1B Qf7 Nc6 b8Q+ Bd6 b7 Bd7 Nf4 Nh6 Na6 Be2 Qc8 Na5 b8R Rh7 Rb7 Qe8 Qcc4 Ba4 Rab1 a1N R1b6 Bc7 Rg6 Bed1 Qce6+ Kd4 e5 Nac4 Qee7 Rh8 e6 Rf8 Qd6+ Nd5 Qde7 Ke5 Be3 Bd2 Bc5 Nde3 Bb4 Qc6 Qee8 Qe4 e7 Bc1 Qg7+ Rf6 d4+ Kf5 d5 Rf7 d6 Rf8 Kf2 g3+ Ke1 g4 d7 Rf6 d8Q Ke5 Qgf7 Rf5 Bf1 g2 Kf2 g1N Kg3 Nf3 Rb2 Ng5 Kh4 g3 Bg2 Rf6 Qd6+ Kf5 Bf3 g2 Kh5 g1Q Bc5 Bd2 Qb5 Qh1 e8R Qe1 Re6 Qe2 Rg8 Qe1 Ng6 Bc1 Nh8 Qe2 Qdf8 Kf4 Rg6 Kg3 Qb8 Kh2 Bf8 Ng2 Qd8 B1f4 Qd6 Nge3 Qbe5 Qc6 Qe4 Qe8 Qed3 Qg2 Qe2 Rf5 Bd5 Rf6 Qg4 Qc2 Bg2 Qe4 Qe2 Be5 Qd5 Rf3 Qd6 Bf4 Bf1+
1rnq1kQR/qr3BNb/1R2nBqn/4N1b1/2n2qnQ/1P1R4/3NK2p/5N2 b - - 0 1 illegal: No possible last move
N1n1B1kR/NbQ1Bq1q/3RrbNQ/2n1r3/1r3P2/7n/rQ3pnK/3Qn3 b - - 0 1 illegal: No possible last move, all moves rejected
K3b1B1/2B3B1/8/1r3q1R/b2nPNbr/1R1Nb3/kQ2rpq1/1nQ1RrrR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 Kc4 b4 h5 e3+ d3 g5 f5+ Ke5 a5 g6 d5 c3 h3 g7 h2 b6 d4 b5 a4 e4 a3 b7 f3 b6 f4 Bb2 h4 Bh3 a2 Ne2 d2 Qf1 Kb3 c4 d1B c5 f2 c6 d3 c7 f3 Bd4 d2 Rg1 h1R Bc5 Ra5 Bg2 h3 Nf4 h2 Nc3 Qf6+ Kd5 Rh4 Nd3 Rb5 Bh3 Bg4 c8Q Nc6 b8R Nd4 b7 Bd7 Bf5 Be8 Be6 Be2 Re1 a1R Rg5 d1B Rh5 Rg1 Qh3 f1R Qg3 Nh6 g8R h1Q Rh8 f2 Bg8 Bg4 Ne2 Qg2 Nef4 Ka2 Qe3 Bc2 Qc1 Nhf5 R8h7 Bh6 Qc6 Rb2 Bf8 Rab1 Bg7 Nf3 Qc3 Nd2 Rh8 Qg5 Kc5+ Bb3 Kb6 Nd4 Ka7 Qf5 Ka8 Rc2 Rc8 Rbb2 b8B Nb1 Bc7 Re2 Rb8 Bg5 Nh3 Be3 Nhf4 Qe6 Rb7 Bba4 Rb3 Qf5 Rg5 Rh6 Rh5 Rh7 Rh1 Rh4 Rh5 Rbc2 Qa5 Rc5 Qac3 Rb5 Q3b2+
1Rbb1n2/1QRnB2b/2nrq1n1/1b6/2pN2k1/R5qB/2PQRr2/4KbQN b - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 d4 Kd7 g4 Ke6 b4 a5 b6 f5 b5 c5 g5 h5 g6 f2+ Ke2 h3 b7 h4 b6 f4 d5+ Kf5 d6 e5 d7 e4 g7 e3 Nf3 a4 Nfd2 h2 Qe1 h3 Na3 f3+ Kd1 Qe7 d8Q Nf6 g8R Nh7 Qe2 Nd7 b8R Qe6 b7 Ra6 Qh4 Be7 Rg7 Bd8 Qd4 Rd6 Qe1 Rf8 Ndb1 e2+ Kd2 c4 Qd1 e1N Nc3 Nd3 Ne4 N3e5 Nc5 Ng6 Bg2 f1B Ne4 f2 Bb2 Bd3 Bf3 f1B Nb5 a3 Qe3 a2 Ba3 Rf7 Qde1 Nhf8 Bg2 Kg4 Ng3 Rf2+ Kd1 Bf5+ Q1d2 B5d3 Rg1 h1B Ke1 h2 Nd4 Be4 Re7 Bc6 Bb4 Bb5 Rf7 Ra6 Be7 Rd6 Rb1 a1N Rb3 Nf4 Rc3 N4g6 Ra3 Nb3 Rh7 Na5 Rg7 Nc6 Rf7 Be2 Rf1 Rf6 Rf2 Bf1 Re2 Rf3 Qg1 Rf2 Bd5 Be4 Nh1+ Kh5 Rg7 Bf5 Bg2 Kg4 Rba8 Bd3 b8Q Bf5 Qb7 Bd3 Ng3 h1Q Rb8 Qh4 Nh1 Qg3 Bg5 Nb6 Rc7 Nbd7 Be7 Nh8 Rb3 Bh7 Ra3 Nhg6 Bh3+
1r3Bbk/R1q1nqR1/1qr4n/1NB2Bb1/2p1q3/2b3BK/2Pb4/QNQ1q1Q1 b - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 a5 g4 f5 d4 Kf7 b4 Kg7 d5 e5 g5 c5 d6 h5 d7 e4 b6 e3+ Ke1 a4 g6 c4 b7 f4 b5 a3 b6 f2+ Ke2 h3 Kf3 h4 Kg4 a2 Qd2 e2 Na3 e1B Bd3 f1Q Qg2 f3 Be3 f2 Rb1 a1B Qh2 Qc7 Ne2 Rh6 Bc5 Bac3 Qg1 h2 Nd4 h3 Ndb5 Be7 Ra1 Bed2 Bf5 Kh8 d8B Qe1 Nb1 f1Q Ra7 Nc6 b8Q Beg5 b7 Be6 Bde7 Bf7 Qd8 Rb8 Bf8 Nce7 Qd5 Qb6 Qdd4+ Qe5 Qde3 Qec7 Qe1 Qf2 Qc1 Bd5 Qgd1 Qe1 Rg1 h1Q Rg3 h2 Rg2 Qhf1 Rg3 Ra8 b8B h1Q Rg2 Qcc6 Bg3 Qcc7 Rg1 Rb8 Rg2 Rh2 Rg1 Re2 Rg2 Re6 Rg1 Qh7 Rg2 Nh6+ Kh3 Rc6 g7+ Kg8 Bc8 Qhe4 Bf5 Kf7 g8Q+ Kf6 Qh7 Bg8 Qh8+ Kf7 Qd4 Qff3 Qg1 Kf6 Be6 Kg6 Bg4 Kh7 Bf5+ Kh8 Qb2 Qd5 Qa1 Qf7 Qc1 Qfe4 Bh2 Bh4 Rg7 Bhg5 Bg3
kqB1q2B/1rb1q2R/q2Qr3/b2P2Q1/B6b/2b2N1K/np2B3/1N2RnQb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 f5 h4 c5 d4 Kc7 e4 g5 a4 b5 d6+ Kb7 h5 b3 a5 b2 d7 f3+ Kg3 f4+ Kh2 f2 e5 b4 h6 g3+ Kh3 f3 e6 c4 h7 g2 e7 c3 e8B b3 Bf4 c2 Rh2 c1B Bb5 f1Q Be2 g4+ Kg3 f2 Bg5 Na6 Nh3 g1B Be3 Nf6 Nc3 b1Q Nb5 Qe1 Ng5 f1Q+ Bf2 Nd5 Na7 Bd6+ Kh4 g3 B8h5 g2 Rh3 Bc7 Be8 Nab4 Rh1 Bb2 Nb5 Ra7 a6+ Ka8 Nc3 Bb7 Kh3 Ne3 Nf3 Qe7 Qc1 Rf8 h8Q Na2 Qg7 Rf6 Qg5 Re6 Bh4 Be4 d5 Rb7 a7 Bf2 Bg3 Ba5 Be5 Bh4 Bh8 Bc7 Qd1 Ba5 Qd4 Bc7 Qc5 Ba5 Qd6 g1B+ Qg2 Bh2 d8Q+ Rb8 Q8b6 Rb7 Bd7 Qe8 Bc8 Be5 Qbd8 Beg3 Qg5 Qe7 Bd1 Qa6 Qg1 Nf1 Be2 Bh2 Qdb6 Bc7 Qd6 Qbd3 Rd1 Qdb5 Nb1 Qeb4 Rh2 Bc3 Re1 b2 Kg2 Bg3 Rh7 Bh4 Kh3 Qbe8 Ne5 Bh1 Nf3 Rb5 Bd7 Kb7 a8B+ Kb8 Bb7 Rb6 Bbc8 Ka8 Ba4 Qbb5 Bd7 Qb8 Bc2 Rb7 Bc8 Qbe8 Ba4
1q1Qr3/bbr1bR1Q/3N1R2/1p2N1B1/2Rrq2b/B1nn1k1b/rP6/1Q2R2K b - - 0 1 illegal: No possible last move
2R1bN2/2n1Q3/2q2b1R/prqB1r1n/1QPkn3/3Q3q/K1nN1nQ1/2B2R1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 a5 Kb2 f5 g5 d3 g6 h3 b6 d2 b7 h2 b5 f3 b6 d4 g7 f4 Ka2 d3 Qb3 d1N Qb2+ Nc3+ Kb3 f2 Be3 h4 Ne2 h3 Bg2 f1N Ra3 f3 Qa1 d2 Rg1 h1Q Bc5 d1N Qb2 f2 Nd4 h2 Nd2 Qd5 Qb1 Be7 Ne6 Bf6 Qd3 Nfe3 Rf1 Nc2 Nf8 Na6 b8R Bd7 b7 Be8 Rc8 Rb8 Be3 Qc5 Ra1 Rh5 Ra3 Na4 Ka2 Nc7 Rb3 Rg5 Rb6 Rf5 Bf3 Qg2 Rc6 h1Q Rd6 Bg5 Rh6 Nf6 g8Q Nh5 Qg6 Bd8 Qg4 Qgh3 Qg2 Bf6 Bg5 Qc6 Be3 Nc5 Bg5 Ra8 b8Q Ra7 Qb4 Rb7 Qe2 Kd4 e5 Rb5 e6 Qg1 Bd5 Ne4 e7 Qhh1 Re1 f1Q Qd3+ Ke5 Be3 Qh3 Bg5 Qgc5 Be3 Qfh1 Rf1 Ndf2 Bg5 Bg6 e8Q+ Ne6 Qd8 Be8 Nb1 Nc7 Bc1 Bg6 Nd2 Be8 Qda3 Kd4 Qe7 Rb7 Qab3 Rb5 Qd3+
qq1BB1q1/1n5n/1q1p4/2R1rr2/b4kn1/N1Q1N3/2RKNnP1/Q1N2Rbn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 c4 Ke7 e4 Ke6 b4 Ke5 c5 f5 b6 h5 b7 a5 b5 f3 b6 d3 c6 f2+ Kd2 f4 c7 h3 Ra3 f3 Qc2 a4 Qa2 h4 Kc3 h2 Qf7 h3 Qh7 d2 Qh6 d1Q Qh7 Ra5 Bb5 f1N Qg6 f2 Qg4 Nf6 Qh4 Qd6 Ne2 Nh7 Ra2 a3 Rc2 a2 Bg5 Nc6 b8Q Ne3 b7 f1Q Qe1 Ng4 Na3 Qf4 Rf1 h1N Nc1 h2 Qa8 Nhf2 b8N h1N Bh4 Ba6 c8R Bg7 Ba4 Qg8 Bd8 Bb5 Qe3 Qde6 Kd2 a1Q Qa7 Qh2 Qc3+ Kf4 e5 Qb3 e6 Bd4 e7 d6 e8N Qg1 Bf6 Nd8 Nc6 Nb7 Ng7 Bb6 Nd4 Bc6 Nb1 Rf5 Na3 Bd7 Bd8 Qbb1 Bb3 Ba4 Bf7 Qb5 Rc5 Qbe8 Be7 Qb8 Bd8 Re5 Qb4 Bb3 R5c3 Nhf6 Qa8 Rhh5 Nc4 Nh7 Rd1 Nh3 Rf1+ Ke4 Nde2 Qc5 Qa2 Qc6 Qa6 Bg1 Be8 N3f2 Nf5 Qb6 Nfe3 Rhf5 Qaa3 Qa2 Qb2 Qaa8 Qa1 Ba4 Na3+ Qc4 Qbb2 Qe6 Rc5 Qg8 Nd4 Kf4 Qb3 Ng3 Qbc3 Nh1 Nde2+
1rr1bbk1/3n3Q/b1P1rn2/Nr5Q/2K1BBRq/1Q6/1p1b1bRN/q4N1Q b - - 0 1 illegal: No possible last move
R1Q5/b7/P4Bqr/1k1B1B1N/n2bKnQn/1qbr1Q1b/1nN1p2n/Q2R4 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 b5 a4 e5 f4 c5 g4 h5 d4 c4 f5 c3 d6 Kc6 f6 h3 d7 b3 a5 h2 a6 b4 g5 b2 f7 b3 g6 h4 g7 c2 Qd3 h3 Qc4+ Bc5 f8Q Rh6 Qe7 Qe8 d8Q Nf6 g8B Nd5+ Kd2 e3+ Kd3 e4+ Ke2 Nd7 Bg2 N7f6 Bd2 c1B Bf1 Qg6 Qdf8 Ng4 Be1 Nf4+ Kd1 Kb6 d5 Bd4 Bg3 e2+ Ke1 Bce3 Na3 b1N d6 b2 d7 Nc3 Bg2 Na4 Qg5 b1Q+ Qc1 Qb3 Bd5 Rb8 Nc2 Kb5 d8Q Ba7 Qc7 Bed4 Kd2 e1B+ Kd1 e3 Bh4 Rb7 Ne2 Bec3 Bge4 Be6 Qcg7 Rd7 Bf5 Rd6 Rg1 h1N Ng3 h2 Nh5 Ng3 Qgd8 h1N Qc8 Nh2 Bf6 Rd8 Qb2 e2+ Kc1 Qe8 Qg4 Nf2 Rd1 Qf7 Rb1 Qg6 Qa1 Rd6 Qfe8+ Bd7 Qe3 Be6 Qef3 Rd7 Bfe4 Nf5 Rb2 Nh4 Bf5 N2d3+ Kb1 Qb4 Rb3 Ndb2 Kc1 Ka5 Kb1 Qc4 Rb8 Qb3 Ra8 Kb5 Kc1 Re7 Qgg3 Qa3 Bfe4 Bg4 Bf5 Bh3 Qgg4 Re3 Bd8 Bb4 Bf6 Rc3 Kd2 Qb3 Ke1 Re3+ Kf2 Bbc3 Bh8 Ne6 Bf6 Rd3+ Kg3 Nd8 Kf4 Ne6+ Ke4 Nf4 Qc7 Qh7 Qd8 Qg6 Qc8
N1nr1Qq1/2bQq1b1/P1N1nq2/3r4/B1q3Rp/R2bNN2/2Q2q2/1K1bk1B1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Ke7 g4 Kf6 e4 Ke5 d6 Kd4 e5 h5 e6 c5 d7 f5 e7 b5 e8Q f3 a5 c4 d3 f4 Kd2 b3 g5 f2 g6 b2 Kc2 b4 g7 b3+ Kd2 f3 a6 h3 Qe7 h2 Nh3 h4 Nf4 Rh5 Qd6+ Rd5 Qb4 Nc6 Qb7 Qf6 d8N Nge7 g8Q Bg4 Qe2 c3+ Kd1 c2+ Kd2 Nc8 Qbe7 Bg7 Rg1 h1Q Qd7 Qg2 Ra3 Qg3 Bh3 f1Q Qf8 f2 Ng2 Qge5 Ne3 Qee7 Rg3 Qg2 Qd1 f1Q+ Qe2 Qgf2 Ne6+ Ke5 d4+ Ke4 Rg1 Nd8 Nc7 Ne6 Rg2 Rb8 Na8 Bf3 Kc3 Q1g1 Qc4 Bd1 Rg4+ Kf3 Qca4 Ke2 Nd2 b1Q Nf3 b2 Bd2 c1B Qc2 Re5 d5 Qa2 d6 b1B Bg2 Nb6 Bh1 Rd8 Bg2 Qd5 Be1+ Bd2+ Kb2 Qc4 Bh1 Nc8 Ka1 Qfh2 Bf2 Qgg2 Bg1 Rd5+ Qb2 Bd3 Qc3 Rd4 Qc2 Rd5+ Kb1 Qhg3 Qa4 Q2f2 d7 Re8 d8N Qgg2 Ne5 Ke1 Qd7 Ba5 Ndc6 Qgg3 Be4 Rd8 Bg6 Bc7 Be8 Bh8 Rd4 Qg8 Re4 Bg7 Rg4 Qd2 Nf3+ Ke2 Qd6 Qh6 Nb8 Qg6 Ba4 Qgf6 Bh2 Kf2 Qd7 Ke2 Nc6 Kf2 Nfd4 Ke1 Bg1 Qdf2 Nf3+
2NRbqB1/1nN5/Pb1BKn2/1bqRnRr1/1b1p4/N4Q2/n2NQ1r1/k1b5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 b5 h4 e5 f4 b3 c4 g3 a4 b4 c5 g2 a5 b2 h5 b3 c6 d3 c7 e4 h6 e3 h7 e2 a6 e1N Ra4 d2 Nh3 g1B Qc2 d1B Qc4 g4 Ra2 g3 Qe4 g2 Qc4 Bh5 Rh2 Be8 Qa4 Be3 Nc3 b1Q Qa5 g1B Rhc2 b2 Rd2 Nf3 Qb5 Nc6 Ra5 Nfe5 Ng5 Bb4 Qe2 Qc2 Nb5 b1N Na3 d6 Rb5 Bcd7 c8N Na5 Nf3 Nb7 Rd1 Qe7 Nd2 Qf8 Bb2 Bb6 Bd4 Qc1 Bc5 Be3 Ra5 Bb5 Bh3 Kg7 Ke6 d5 Bd6 Qc5 f6+ Kg6 f7 d4 Rf1 Nf6 f5+ Kg5 Bg2 Rg8 h8R Nc3 Bd5 Na2 Rf3 Kg4 Bb3 Rg5 Rg8 Nd5 f6 Rb8 Rf5+ Kg3 Qh5 Bf4 Rh8 Kf2 Qh2+ Ke3 Rg8 Kd3 Qe2+ Kc3 Rh8 Qg7 f8Q Kb2 f7 Nf6 Bd5 Qc1 Bc4 Ka1 Bb3 Bc4+ Rd5 Bcb5 Ndc4 Nfg4 Qd3 Bbc6 Ke7 Bed7 Rh7 Bc3 Rh8 Nc5 Rf6 Ba7 Qd2 Rb6 Qc2 Nb7 Rc5 Rb4 Qf2 Bb6 Qe8 Bb5 Rf5 Nf6 Qf3 Neg4 Rg8 Qh8 f8N Qc2 Kf7 Bc1 Ne6 B3d2 Nc7 Be1 Qee4 Ne5+ Ke7 Bed2 Rd8 Be8 Nb1 Bc3 Nca3 Qg8 Be6 Rb2 Rd5 Bb4 Bf7 Qc4 Ke6 Rbg2 Qee2 Qf8 Bg8 Qc5 Nd2
1qnrb2K/RRBN2p1/4b1bQ/7k/2Q5/PqqN1RR1/BN1b2qn/r5b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 c5 e4 f5 h4 Kf7 d4 Kg6 d6 b5 e5 g3+ Kf3 b3 d5 b4 h5+ Kh6 e6 b2 d7 g2 e7 c4 e8N b3 d6 c3 Rh3 c2 Bc4 Nc6 Nc3 b1Q Qd5 b2 Nd1 Nf6 Ne2 g1B Rg3 Qc7 d8R Na7 d7 Ng4 Nf6 Bb4 Rf8 Qb8 d8R Be6 Rd7 Bd2 Rb7 Nc8 Nd7 Ra4 Rf7 Rd8 Rf8 Kg5 h6 Kh5 h7 Ra7 Bb3 Ra4 Qc4 Nh2+ Kg2 f3+ Kh3 f2 h8Q+ Bh6 Be3 c1Q Bf4 Qc3 Nc1 Ra8 Nd3 f1Q+ Rg2 Qbc2 Bc7 b1B Nb2 Qfe2 Rf7 f4+ Rg4 f3 a3 f2 Ba2 Q2b3 Ra7 Qed2 Rf3 f1B+ Kg3 Bc2 Rb1 Rf8 Rg6 Rf5 Rg4 Rg5 Qh7 Qg2+ Kf4 Be2 Rgg3 Bed1 Nc1 Bg6 Ncd3 Be8 Qf5 Bc2 Qf6 Rg6+ Ke4 Bd2 Qf4 Bg8 Kf5 Rg4 Re1 Rg6 Re7 Re6 Rf7 Re1 Qe3 Ra1 Ke6 Nb6 Ke7 Bb1 Kf8 Nc8 Re7 Be6 Ref7 Q8b4+ Kg8 Qb8 Kh8 Bc2 Nc1 Bcf5 Ncd3 Bg6 R7f4 Q8b5 Qa4 Nd6 Rb4 Rd8 Qa6 Qb8 Qc4 Nc8 Rbb7 Re1 Qef4 Ra1 Qh6+
1RR3b1/2r2PQ1/1BbK1b1R/2rbNr1R/2rnp3/1b6/5QB1/2qnqBNk b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b5 h2 b7 a4 b6 e3+ Kd3 a3 c7 h4 Qf3 e2 Qe3 Kg4 f5 e1Q f6 a2 Qd2 h3 Qa5 Rh5 Bd2 Be6 c8B Qc7 Nc3 Be7 Qc5 Rf5 Bg2 Ra7 Bc1 Nh6 Bf4 Nc6 b8Q Bg8 f7 Bf6 Rb1 a1R b7 R1a5 Qb6 Rc5 Nb5 Ra4 Q8a7 Rac4 Bd7 Qc8 Bf1 Qc7 Ne2 Kf3 b8R Ng4 Qa1 Ne3 g4 Nd1 g5 Qc8 g6 Kf2 Rg1 h1B g7 h2 Na3 Bf3 Qbb2 h1B Rg6 Qc7 Rh6 Qc8 Nc1+ Kg1 Qb6 Bhg2 Rb5 Qc7 Bh2+ Kh1 Ne2 Qc8 Qc3 Qc7 Ng1 Qc8 Kc2 d3+ Kb3 d2 Ra5 d4 Bf4+ Qh4 Be3 d3 Rb5 Bd5 Qa1 Rf3 Bh3 Qe1 Qa7 Rf5 Qd4 Bh7 g8R Bgf3 Re8 Bg8 Qg4 Qc7 Rec8 Bg2 Qg7 Nd4+ Ka2 Bc6 Ra5 Bgd5 Rab5 Rc1+ Nc4 e4 Ka3 Rc2 Ne5 R2c4 Qg5 Qb7 Ra5 Qb1 Qg7 Qc2 Qb6 Qc1+ Qb2 Nc3 Bf2 d1B Rab5 Bb3 Be3 Qb1 Qf2 d2 Ra5 Nd1 Rab5 Rc2 Kb4 Qc1 R5b6 Be8 Rh5 Rc7 Re6 Bec6 Rd6 Rc5 Re6 Bg5 Reh6 Bf6 Nd3 Ra5 Bf4 Nf3 Rh7 Nc3 Be3 d1R Ne5 Rd2 Ba7 Rc2 R7h6 Nd4 Bb6 Ra4+ Kc5 Nd1+ Kd6 Rc5 Re8 Rb4 Rec8 Rbc4 Bhg2#
b1Q2rr1/1qn1Bpn1/n7/k3qqR1/3NQNR1/4P2B/3R1Q2/q1n1bqQK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 g4 Kd7 Kg2 Kc7 b4 Kb6 c4 h5 e3 a5 g5 a4 g6 h3+ Kh2 a3 g7 d3 Ra2 d4 Rf2 f3 Ne2 h4 Qb3 a2 Nec3 a1N Rd2 f2 Ne4 Qf6 Qc3 Qe5+ Ng3 Ne7 g8Q Nb3 Qb2 Na6 Rg1 Bb7 Qh7 Nf5 Nc3 Rg8 Ne2 Ng7 Qe4 Bd6 Bg2 f1Q Nf4 Raf8 Nge2 Ba8 Kh1 h2 Bh3 Qf2 Rg5 Qf3+ Ng2 Qff5 Ngf4 Bc5 Qa2 Be7 Ba3 Nc1 Qc2 Bd8 Qd1 Bf6 Qg1 Bd8 Rc2 d2 Rg4 d1Q Rd2 d3 Nd4 Qf1 c5+ Ka7 c6 Ba5 c7 Kb6 Rd1 d2 c8Q Qd3 Qf2 Qb1 Rdg1 d1N Rg5 Qd3 R1g4 Nc3 Qg1 Nd5 Qc2 Qf1 Qf2 Ka7 b6+ Kb7 b5 Be1 Qec2 Ndc7 Qe4+ Kb8 b7 Ka7 Be7 Kb6 b8R+ Ka5 b6 Qfb5 b7 Qb2 Kg2 h1Q+ Kf1 Qa1 Rd8 Qf3 b8Q Qd1 Bg2 h3 Qc8 h2 Bh3 h1Q Rd6 Qb3 Rd7 Qf3 Rd6 Qfd1 Kg2 Qb7 Kh1 Qd3 Nf3 Qdb5 Rd2 Qf1 Nd4
2N1QQ1q/1b1P4/7q/pR1k1KB1/1nn1rn1N/1Rb1q2R/2Rn1n2/rQq2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 h5+ Kh3 f5 e4 c5 d4 f3 b4 c3 g4 f4 b6 c4 e5 c2 b7 c3 g5 f2 b5 f3 b6 Na6 b8Q Bb4 b7 Nf6 g6 Kd5+ e6 Re8 Bh6 c1Q g7 c2 g8R Qe3 Ne2 c1Q Rg6 Bc3 Ng1 Nb4 Na3 Re7 Bf4 Qh8 Ra2 a6 Rc2 Ra7 Bg2 f1N Nc4 Nd2 Bf1 f2+ Nf3 Ra8 Nd6 Nc4 Bg5 Qh6 Kh2 h3 Kg3 h2 Kh4 Re8 e7 Ra7 Qa8 Qh8 b8R+ Bb7 Kh3 h4 Nc8 Nh5 Kg4 h3 Rb6 Nf4 Kf5 Qh6 Nh4 Qh8 Rg1 h1N Rg3 h2 Rh3 Qh6 Bd3 f1N Qe1 Qa3 Qb1 Nfd2 Be2 Nf2 Bf1 Bc6 R8b7 h1Q Qb8 Qc1 Qa8 Rd8 e8Q a5 Rb8 Re7 R8b7 Re4 Qf8 Nbd3 Rb3 Rde8 R7b6 Nb4 Qg8+ R4e6 Rh2 Qh5 Qf8 Qee2 Nd6 Bb7 Ng6 Qa3 Qa1 Qh8 Qb8 R8e7 Qbe8 Re3 Qa2 R7e4 Nc8 Qef3 Rh6 Re1 Rh4 Ra1 Qb1 Qc1 Rh2 Qfh5 Rh4 Q1f3 Rh3 Q5h6 Nh4 Qd3 Rh2 Ne5 Rh3 Kc4 d5 Qe2 d6 Kd5 d7 Nec4 Rcb2 Qf3 Rc2 Qe3 Rb5+
1B2K1B1/bn1pnQqb/1B1P4/R1R5/1NrnbB2/1q1kb3/1n1NnrQ1/3R4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 Kf2 Ke7 h4 Kf6 d4 Kf5 c4 Ke4 h5 g5 d5 f5 h6 a5 h7 f3 Kg3 f4+ Kf2 a4 d6 b3 e3 g3+ Ke1 b2 Kd2 f2 Kc3 g2 Kb4 f3 Kc5 a3 b6 g4 b7 a2 Rh4 Nc6 b8B Bb7 Rh1 g3 Be2 f1Q Qb3 f2 Nh3 g1N Nf4 g2 Nd3 Qe7 Kb6 Nd4 Kc7 Qg7 Kd8 Ne7 c5 Ra4 c6 Qd1 c7 f1N c8R Rc4 Rc5 Nd2 Nb4 Ba8 Bf1 Nge2 Ke8 g1B Rhh5 Rg8 h8B Bb7 Qa4 Qb3 Qa8 Bf2 Ra5 Bc6 Rhc5 Bb7 Nd5 Kd3 e4 Be3 e5 Bg1 Nb6 Be4 e6 Bh7 Qg2 Bf2 Nc3 b1B Nbd5 Bc2 Rb1 a1N Ne4 Qc3 Ba3 Nab3 Rd1 Bb1 Bc1 Qc2 Ra6 Na5 Ra8 Nb7 Raa5 Qb3 Nb4+ Ke3 Nc3 Bbe4 Nb1 Qg3 Bf6 Rg4 Be5 Rf4 Ba3 Bh6 Bb2 N2f3 Nd2 Ne1 Bc3 Nd3 Ba1 Nd5 e7 Qg7 Bc3 Rf7 Bh2 Nb2 Bg1 Nf3 Be5 Bg5 Bg3 Kd4 B3h2 Bge3 Bf4 Kc3 Rc7 Ba7 Rcc5 Be3 Bf2 Nfd4 Bg1 Nc1 Be2 Rf5 Bg4 Rf6 Be6 Nce2 Bg8 Rf5 Bg3 Rf2 Bf4 Qe5 Kf7 Qh8 e8Q Ne7 Kf8 Qe5 Qf7 Qg7+ Ke8 Ndf5 Nf1 Rf3 Ra3 Bc1 Rc6 Bd2 Bb6 Nfd4 Ra5 Be3 Rcc5 Rf2 Na2+ Kc2 Nd2 Kd3 Nb4+
5B2/rq3Nbq/1Rn1R1bb/N1nN1q1B/k4n1Q/nR1bQ3/1p4PK/1r2R3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 a4 b5 d4 h5 e4 f5 e5 c5 d6 Kc6 a5 f3 a6 b3 a7 f4 d7 b2 e6 h3 e7 h2 e8N b4 Bd2 c4 d5+ Kb5 d6 b3 Ra2 h4 Qe1 h3 Ra1 Bg7 Qe3 Qb6 d8Q Nc6 d7 Nge7 Be1 Ng6 Ra6 Qb7 Rb6+ Ka4 Qd3 c3 Ne2 c2 Qg5 c1B d8R Bf5 Rg1 h1Q Qe3 h2 Na3 b1N Rc8 b2 Nc4 Na3 Ned6 Rd8 Nf7 Rd1 Nh6 Bd2 Na5 Rb1 Rb8 Bc1 Bb4 Bd3 Ke1 f2+ Kd1 f3 Nf4 Bf5 Be2 f1B Nf7 f2 Bh5 B1d3 Re1 f1Q Nd5 Nf4 Bf8 Bg6 Qh4 Qf3+ Qe2 Qe4 Qe3 Qf1 Re8 h1N Re6 Ng3 Rb3 Qh1 Rb6 Qf5 Rb3 Re8 a8R Re7 Ra6 Ne4 Rab6 Nc5 Rg1 Qg5 Ke1 Qf5 Kf2 Qhh3 Re1 Rc7 Kg1 Rd7 Bd1 Re7 Qf6 Qh7 Qh4 Qc8 Rf6 Ra7 Qef2 Qb7 Kh2 Bd2 Bg4 Nh5 Rfe6 Bdh6 Qe3 Nf4 Bh5
1B5Q/n1R1nB2/2q1q3/r1Qb4/1rQ2K1b/2Q1n1R1/P1rpqNN1/k1B1n1r1 b - - 0 1 illegal: No possible last move, all moves rejected
1r5N/1nQRq3/brN1BBr1/3R2k1/b1q4n/q1QQ2KP/b1rb2Rp/7Q b - - 0 1 illegal: No proof kernel
RR1BrB2/nQ1B3N/bQ2q3/1r2B3/4bb2/3rq1Pn/3q2pK/b1r1Nk1Q b - - 0 1 illegal: No possible last move
n5K1/Brn3Q1/QNb1r1R1/1R4n1/3BNq1b/1N1Bpq2/1r4kP/b1b2rB1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 b4 Kh5 f4 Kh4 c5 a5 f5 e5 b6 d5 f6 g5 c6 d3+ Ke3 d4+ Kd2 a4 b5 e3+ Ke1 d2+ Ke2 a3 Kd3 e4+ Kc4 d3 c7 g3 f7 a2 b7 g4 b6 g2 Ba3 e2 Qa4 d1Q Nh3 g1N Bg2 e1B Nf4 g3 Bf1 e3 Ng2+ Kh3 Be2 d2 Qa6 Ne7 Nc3 Nf3 Nh4 g2 Bd3 g1R Ne4 Ng5 Nf3 Rh7 Rb1 a1B Bc5 Rf1 Nd4 Qf3 Rg1 d1R Nb3 Nd7 b8B Bh4 b7 Rd2 Bba7 Rb2 b8B Bb7 c8N Bc6 Bd4 Qc7 Nb6 Nd5 Rg2 Bd6 f8Q Ba3 Qg7 Qcf4 Bd6 Rah8 Bb4 Rh6 Be1 R8h7 Bf2 Nc7 Bg1 Re6 Rg4 Nf7 Rg6 Ng5 Qf6 Kg2 Qe5 Re2 Qg7 Bc1 Rb2 Na8 Rb1 Nf6 Rb2 Nd5 Kc5 Re5 Kd6 Ndc7 Rb1 Rb5+ Ke7 Rb2 Qf7 Ra5 Kf8 Re5 Kg8 Re6 Qe7 Nb5 Qf8 Rb7 Qg7 Nbc7 Na5 Rd2 Rb5 Rb2 Nb3
Bq1b1bnR/2n2b2/2r3Q1/1rrBN3/1N1QKn1r/BqP5/3pb2Q/Bk5R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 b4 Kd5 g4 Kc4 e4+ d3 b6 h5 b7 a5 e5 d5 b5 f5 b6 d4 g5 a4 g6 h3 e6 h2 g7 a3 e7 a2 e8B h4 Nh3 Ra5 Bg2 d2 Nc3 d3 Na4 Rh6 Bf1 Rc5 Qe2 d1Q Bf7+ Be6 Bd2 Na6 b8B Nc7 Bh5 Bf7 b7 Rhc6 Ng1 h3 Rb1 a1B Ba7 Bf6 c3 Qb3 Qe5 Qb8 Bc1 Bd8 Bg2 d2 Nb6+ Kd3 Nd5 Kc2 Qd4 Rb5 Ra1 Rcc5 Ra6 Kb1 Rh6 Rc6 Nb4 Rbc5 Ke2 f3+ Ke3 f4+ Ke4 f2 Rh8 f1N Nf3 Ne3 Ne5 f3 Bb6 f2 Bhf3 Rb5 Bc5 f1B Bb2 Ned5 Ba1 Nf4 Bd6 Ne7 g8Q Rbc5 Qg6 Ng8 Nd5 Rb5 Ba3 Rbc5 Bc1 Be2 Nb4 Rb5 Rf1 h1R Rd1 h2 Rf1 Qa7 b8Q Rg1 Bh1 Rg5 Bhg2 h1R Re1 Rh4 Rh1 Na6 Qbd6 Qb8 Qc7 Be8 Qch7 Nc7 Qhh5 Rhg4 Qh2 Rh4 Ke3+ Rf5 Ng4 Rd6 Ba8 Bf7 Bgc6 Bd1 Ke4 Rfc5 Ne5 Be2 Bd5 Rdc6 Ba3+
1k3N2/n1NRN3/N1qBb3/1n3R1K/1qQr1r2/P3q1rB/b1p2Rbb/1q5Q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 b5 g4 f5 e4 c4 d4 h3 g5 b3 e5 c3 e6 h2 g6 c2 g7 f3 e7 b2 e8Q b4 a3 b3 Qf7+ Ne7 g8R f2 Rg6 f4 Nd2 b1Q Ndf3 b2 Rh6 Nc6 d6+ Kb8 d5 Nf5 d7 Qb6 d8N Ra4 d6 Nfd4 d7 Nb5 Qg8 Bd6 Ne2 Rd4 Qb3 Nca7 Ng5 f3 Bh3 f1Q Nc3 f2 Nd5 Rg8 Ne4 Qg1 Nc7 f1R Qc4 Rg3 Bf4 Qe3 Rf6 h6 Be5 Rf4 Rf1 h1Q Nc5 Qhc6 Rf2 Qa5 Nde6 Qb4 d8N Bd7 Nf8 Be6 Nd5 Bc7 Qh1 Bd6 Nf7 Bc7 Ng5 Bd6 Kg6 h5 Rf5 h4 Ne7 Bc7 Kh5 Bd6 Bg2 h3 Bf1 h2 Bh3 Qa2 Rg1 b1B Rd1 Qa1 Rd3 Ba2 Rdd2 Qab1 Rd1 Bc8 Nge6 Bd7 Nc7 Be6 Qhf1 h1B Rdd2 Bg2 Qh1 Rfg4 Rd3 Rdf4 Rd5 Rd4 Bf4 Be5 Rd7 Bd6 Be5 Rgf4 Qe2 Rgg4 Nd3 Rfe4 Nc5 Rg7 Qc4 Reg4 Bf6 Bh2 Be5 Rgf4 Bd6 Rg3 N5a6+
q5N1/3BR2K/2rB4/2k1qRNb/Qbq1nnPN/R2pqb2/4b1N1/3nQ2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 f5+ Kh5 a5 b4 h3 e4 d3 c4 d2 g3 f3 b6 h2 b5 f2 b7 f4 e5+ Kc5 b6 d5 e6 a4 e7 f3 e8R a3 Qc2 d1N Qa4 a2 Nd2 d4 Nh3 Na6 b8Q Qe7 b7 Nc7 Nf4 Nd5 Bh3 f1Q Ng2 f2 Qe5 Ra6 b8N Rc6 Qe1 Qe3 Bd7 Nf4+ Kg5 h5 g4 h4 Nf3 h3 Re7 Nf6 Nfh4 Ne4+ Kf5 Qfe2 Rf1 h1B Bb2 d3 Be5 h2 Bc7 Qc2 Bd6+ Kd4 c5+ Qc4 Na6 Rh6 Rg1 f1B Nc7 Be2 Rf1 Ba6 Rf2 Bb5 Ne6+ Kd5 Ng5 Rh5 Rc1 a1Q Rc3 Nd2 Rh7 Nb1 Bb8 Ra6 c6 Ra7 c7 Ne6 Nf4+ Kd4 Kg6 Bb4 c8N Ra6 Rf3 Nd2 Nf5+ Kc5 Ra3 Qae5 Nce7 Bc6 Bc8 Be8+ Rf7 Bg2 Rf1 h1Q Bd7 Be4 Rf2 Qhf3 Ng8 Rh1 Ng2 Ba8 Ng3 Qc6 Rf6 Nf4+ Kg7 Q6d5 Re7 Bh5 Nf5 Qc6 Kh8 Qc8 Kh7 Baf3 Rff7 Rc6 Nfh4 Ne4 Rf5 Qe8 Bc7 Qa8 Bd6+
2R2qkb/1qRNnqB1/B4b2/8/1Q1PNn2/1b3Q2/Nq1nrNpK/3Qb1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 Kg2 f5 h4 Kf7 e4 a5 b4 c5 d3 g3 h5 a4 h6 g4 h7 a3 e5 a2 b6 c3 b5 c2 b7 c4 b6 c3 Na3 Be7 Be2 f3+ Kf1 g2+ Kf2 f4 Nb1 g3+ Ke1 Bf6 Rh5 Nc6 b8Q Qf8 b7 Nd8 Rh2 Be6 Qd2 Ne7 Ba3 c1Q+ Qd1 c2 Nh3 g1B Kf1 f2 Kg2 f1N Nf2 Bb3 Nc3 Qb1 Bb2 Rg8 h8Q c1Q Qh3 Nd2 e6+ Kg7 Kh1 f3 Qf4 Ra5 b8N Re5 Nd7 Qcc2 Bf1 Re2 Qb4 Qf7 Qg2 Qcc1 Rh8 Bh2 Ng4 f2 Qf3 Qf8 Ne4 Qc6 Nc3 Qb7 Kg2 Qc2 Rc1 a1B Na2 Qf7 Bd4 Qb2 Rc7 Bg1 Rh5 Bh2 Rhc5 Kh8 Kh3 Rg6 Rc8 Kg8 R5c7 Bh8 Bg7 Qf8 Bg2 f1Q Nf2 Bg1 Nh1 Bd4 Nf2 Bf6 d4 Qc1 Ra8 Bc3 Rb8 Qb2 Rbc8 Nd5 e7 Ne6 e8N Ne7 Nd6 Rg5 Kh4 Nf4 Bh3 g2 Bg4 Rh5+ Kg3 Rh1 Nde4 Rg1 Bh3 Nc4 Bg4 Be1 Kh2 Nd2 Bh5 Re3 Be8 Qc4 Bh5 Qf7 Bg4 Re2 Be6 Qa1 Bc4 Qb2 Ba6
2nqr3/1b1Q1n1B/qR3nb1/1NN4Q/2p1BqRK/5b2/B1P1r3/Bkbn2R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 d4 exd4 Qd3 g6 Qf5 g5 axb5 gxf4 g5 Qf6 Qh3 Qd8 Qg4 hxg4 Kf2 Ke7 h4 Kd6 e4 Kc5 b6 Kb4 g6 f5 b3 a5 b7 c5 g7 d5 h5 d3 h6 f3 Kg3 d4 h7 f2 e5 d2 e6 d1B e7 a4 e8B c4 Bf7 d3 Bg2 f1Q Bc6 f4+ Kh2 f3 Kg3 a3 Rh2 d2 Bb2 a2 Na3 f2 Bfd5 Bf3 Nb5 d1N Be4 Ne7 g8B Bh6 Rg2 Nd7 b8Q Bc1 Qa7 Nf6 Kh4 g3 Qd7 Bb7 Nh3 Nc8 Nf4 Ra7 Rb1 a1Q Ne6 Qa6 Ba1 Ra8 Rg1 g2 Nc5 Ra7 Bf7 Ra8 Bfg6 Re8 h8Q Re5 Qh5 Re7 Bef5 Re2 Bh7 Rb8 Bfe4 Ra8 Nd4 Ka3 b4 Ka2 b5 Rb8 b6 Ra8 Rh1 g1N Nb5 Nh3 Rg1 Ng5 Rg4 Rb8 Nd6 Nf7 Ba4 Ra8 Nb5 Rb8 Rb4 Ra8 Bb3+ Kb1 Ra4 Qe1 Ra2 Qd2 Ra5 f1B Ra2 Bd5 b7 Qf4 b8R B1g2 Ra3 Be6 Rb6 Bf5 Ba4 Bg6 Rd3 Nc3 Rd1 Bh1 Rg1 Nd1 Bb3 Bhg2 Bd3 Bb7 Bf5 Bgf3 Be4 Ne7 Qc8 Qdd6 Qcf5 Re8 Qd5 Qd8 Qd7 Nc8 Ba2+
3rQ2B/Q1nq2Q1/2q5/N1kbrbB1/1p2R2r/NPqQ1rR1/1N2K3/1n4bq b - - 0 1 illegal: No extended proof kernel
nb2b3/2Q3NK/k1b4N/2r3RQ/PQ3R1r/b1B4n/2Q2Rqp/1q2qBqr b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 f5 a4 c5 e4 Kc7 d4 Kb6 g4 h5 e5 c4 e6 h3 g5 b3 d6 b2 g6 h4 d7 h2 g7 c3 e7 h3 e8R c2 d5 Ba3 d6 Ne7 g8Q Rh4 Qgd5 Na6 Q5d2 Ng6 Qd5 Qg5 d8Q+ Nc7 d7 Ra5 Qg8 Rc5 Ne2 Qg1 Bg2 Ka6 Qgd5 b5 Rf8 b4 Bf1 b3 Nbc3 b1B Qe7 b2 d8Q Na8 Ne4 Bb7 Nf2 Bc6 Bd2 c1B Bc3 Bc2 Qdd6 b1Q Ra2 Bd3 Qdc7 Bdb5 Qc2 Be8 Bg2 Bbc6 Ng3 Qe1 Rg1 h1R Rb2 h2 Nh5 Be3 Rf6 Bd4 Bh3 Be5 Rg5 Qg1 Ng7 Qbe1 Qcd8 Bb8 Ng4 Qb1 Nh6 Qge1 Qdc7 Qg1 Ke2 f3+ Kd3 f4 Ke4 f2 Kf5 f1Q Qee4 f3 Qb4 f2 Bg2 Qe2 Bf1 Nf4 Rf7 Nh3 Kg6 Qe1 Kh7 Qb5 Rf4 Qg2 Bc4 f1Q Qdf5 Qff2 Bf1 Qfg1 Qg6 Nb6 Qh5 Na8 Qce4 Qd3 Re2 Qdd1 Qc2 Qb1 Ref2+
3B3q/1n2qRB1/3rq1Qr/2b3Pr/kBbNn2R/2np3B/rN6/2K2nQQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 e4 d5 b4 Kd7 c4 f5 g4 h5 b6 Kc6 b7 f3 c5 f2 e5 h3 e6 d3 e7 Kb5 e8Q+ Nc6 b8B a4 g5 d4 Rh2 a3 Rg2 h4 Qb3 a2 Bf4 h2 Bb2 h1Q Qg6 h3 Be3 h2 Bf4 Qe7 Bd6 f4 Qc4+ Ka4 Qd5 f3 b5 Nf6 b6 Nd8 b7 Rh5 b8B Nb7 c6 Be6 c7 Ne4+ Kc1 Ra6 Bb4 Rd6 c8Q Bg8 Qdc5 Bc4 Rg4 Rh6 Bg2 f1N Ne2 f2 Bh3 Rh5 Rh4 d2+ Kc2 d1N Kc1 d3 Bc7 Qe6 Bg7 Ndc3 Nd4 Be7 Qh8 Bf8 Nd2 Be7 Rb1 a1R Bd8 Ra2 Rb2 Rd7 Qb6 Bc5 Nb1 Rd6 Rc2 Qg1 Re2 h1R Re3 Qgg4 Rf3 Qe7 Rf7 Rh2 Na3 Qge6 Nac2 Nfd2 Ne3 f1Q+ Nd1 Qh1 Qc7 Nf1 Qc8 Qd5 Qg4 Qde6 Qhh7 Rhf2 Qg1 Rf6 Qf5 Rfh6 Qd5 Qh2 Qg6 Neg3 Qf3 Nge4 Qfh1 Qhe5 Rf5 Q5f6 Rf2 Qff8 Rf7 Qh8 Nb2+
5K2/1QRqr1N1/2r1b1BN/BN2N1PR/nk1qb3/2p5/2rb1brQ/1n2n2Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 a5 e4 h5 d4+ Kb4 b3 c5 b6 h3 d5 h2 d6 a4 d7 c3 Ke6 h4 Kf7 c4 b7 c2 e5 a3 e6 f3 g5 f4 e7 c3 e8N f2 Nd2 f3 Bb2 c1B Qc2 a2 Nb1 h3 Qd2 Bc5 Ng7 Ra7 Qe2 Bd2 Qe5 Na6 b8N Rh6 Ne2 Rc6 Na3 Nf6 Nd4 Ne4 Bd3 f1R Bc1 f2 Ndf5 Rg1 Nb5 Rg2 Nh6 f1Q+ Qf4 Qg1 Qf3 Ng3 Bg6 Bf2 Qe2 Qc7 Kf8 Nc5 d8Q Nf1 Qd5 Be6 Nd7 Na4 Ne5 Qd7 Rb1 a1N Qd1 Rb6 Qb7 Nc2 Qdf3 Ne1 Ba3+ Ka5 Bc5 Rc6 Bb6+ Kb4 Qd1 Bde3 Qh5 Nd2 Rd1 Nb1 Rd6 Rc4 Rc6 Bd2 Rc7 Rc6 Nd6 Ka3 b4 Kb3 b5 Kb4 Be4 Qf1 Bg6 Qc4 Bd4 Qd3 b6 Qe4 Be3 Qc4 Nb5 Qcd4 Rf1 h1R Qf3 Rhh2 Rh1 Rg3 Qg2 Rg4 Qg1 Rhg2 Qh2 R4g3 Qa8 Rg4 b7 Rh4 b8Q Re4 Qg3 h2 Qbb7 Rg4 Rg1 h1B Qh2 Qc4 Bb6 Qcd4 Rf1 Re4 Rg1 Re2 Rf1 Rg3 Rg1 Be4 Rh1 Rg4 Qf4 Rg2 Rh5 Bc1 Qh2 Rc2 Qd8 Bf4 Qf6 Bd2 Qf3 Rg1 Qfh1 Rg2 Qa8 Rb7 Qc8 Ra7 Qb7 Nd3 Qa8 Q7d5 Rc8 Re7 Qb7 Ne1 Rc7 Qd7 Ba5+
1QqB3k/7N/2nbrbNr/6p1/rqN1B1nb/q1P5/1BRKb2q/Q2R2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 d5 e4 f5 b4 Kf7 h5 a5 b6 g5 b5 Kg7 e5 a4 e6 f3 e7 d3 e8Q f4 b7 a3 b6 g3 Bh3 a2 Qe6 f2+ Kd2 f1R Qe4 f3 Qb4 g2 Bd7 d4 Be8 f2 Bc6 Bd6 Bf3 Nf6 Ne2 g1B Bg2 Nc6 b8B Ng4 b7 Ra4 Qb3 Rh6 Ng3 Kh8 Bb2 Re1 Bc7 f1Q b8B Ree6 Be4 Qf3 Rh2 Ba6 Ba7 Qc8 Bd8 Bf2 Na3 Qh1 Rg2 Qh2 Qb8 Bc4 Rc1 a1B Qf1 Bb5 Rd1 Ba6 Nc4 Bb5 Nf5 Bh4 Ne7 Ba6 Ng8 Bb5 Nf6 Ba6 Kc1 d2+ Kb1 d3 Nh7+ Rhf6 h6 Bb5 Rc1 d1Q Bg1 Qe1 Rd1 Qb4 Kc1 Qa3 Kd2 Ba6 Bc1 Rg6 Rf2 Bf6 c3 Qb4 Bb2 Qa3 Nf8 Bb5 h7 Rh6 Ke1 d2+ Ke2 Kg7 h8N Kg8 Nhg6 Kg7 Ne5 Kh8 Nh7 Ba6 Rc1 Qb4 Rc2 Qa3 Qa1 Bb5 Kd3 d1Q+ Rfd2 Qb1 Rd1 Ba6 Bc1 Qbb4 Bb2 Qg3+ Kd2 Bb5 Na5 Be2 Nac4 Qh2 Ng6+
1nRr2R1/4kq1b/1K1bq1q1/1Q2Np2/bn3NrB/2Bn1q2/R4P1n/B2Q2R1 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 axb5 e5 h5 e4 h6 gxh6 e3 h5 Bc4 h4 Bd3 exd3 Kd2 h5 c4 d5 b4 a5 g4 h3 g5 h2 b6 a4 b5 a3 g6 h4 g7 a2 b7 h3 b6 Bf5 e4 Bd6 e5 Qf6 c5 Ra4 c6 Ke7 c7 Qg6 c8Q Nf6 g8R Ng4 Rg7 Rd8 e6 Be4 Ke1 d2+ Ke2 Rb4 Na3 d3+ Kf1 d4 Qc4 Bf5 Ne2 Be4 Rg1 h1Q Rg8 h2 Qb5 Qf3 Nf4 h1Q Nc4 Qhh7 Bb2 f6 Rg2 Qhf7 Ne5 Rc4 Bc3 Ra4 Qe2 d1B Rg1 d2 Qe1 Bdc2 Qd1 Qh3+ Ke2 Nh2 Ng2 Qhh6 Nf4 d3+ Ke3 Rd4 Qf3 Ba4 Qd1 Na6 b8B Bf5 Qg4 d1Q b7 d2 Qf3 Qb3 Qd1 Rb4 Ba7 Nb8 Bd4 Bd3 Rc1 a1N Rc2 Bf5 Ra2 Bd3 Bb2 Bf5+ Bdc3 Re4+ Kd3 Nc2 Ba1 Rd4+ Ke2 Nb4 Ke3 N8c6 b8B Qhf8 Nfd3 Rg4 Nf4 Bb1 Bc7 Nb8 Kd4 Bc2 Bcb2 Qf3 Bc3 Q8e8 Kc4 Qh6 Kd4 Bh7 Kc4 f5 Kd4 Kf6 e7 Qec6 e8R Qhg6 Ref8 Qd7 Re8 Qde6 Ref8 Rd7 Rc8 Rd8 Qc2 d1N Qce2 Nb2 Qd1 Be7+ Bd6 Bf8 Kc5 N2d3+ Kb6 Be7 Qc6 Bf8 Bc7 Bd6 Qb5 Ke7 Ne2 N8c6 Nc4 Bf4 Bb8 Bg5 Bg3 Bf6 Nf4 Be5 Rh8 Bb8 Rg8 Bd6 Ne5 Nb8 Bh4+
b3n2Q/2rQbn2/n4nq1/1N1Bp3/1Q3Rr1/1b2qN1r/2P2b1B/R1NK1Q1k b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 b4 Kg6 g4 h5 g5 Kf5 g6 e5 b6 d5 g7 a5 b5 e3 b7 Ke4 b6 h3 f5 h2 f6 e2 f7 a4 Bd2 a3 Bh3 d3 Ba5 d2+ Kf2 e1B+ Ke2 h4 Bf1 d4 Bb4 a2 Ba5 h3 Bb4 Qf6 Be7 Ra4 Na3 Be6 Rb1 a1Q Rc1 Qc3 Bd8 Na6 b8N Bb3 b7 Rh7 Be7 Qg6 Bb4 Nf6 g8Q Ne8 Nd7 Bf2 b8Q Be7 Qe1 d1N f8Q Ne3 Qd2 Nc4 Kd1 d3 Qc7 Ncd6 Qgg7 Nf7 Bc5 Qd4 Qb8 Qe3 Nf3 Kf4 Nb5 Kg3 Qc7 Rg4 Qb4 d2 Bc4 Kg2 Rf1 h1R Ra1 h2 Bd5 Rh3 Qfh8 Rg1 Qgf8 h1B Bb6 Rc4 Qd8 Rc6 Nc5 Rc7 Nfd4+ Kh2 Qd7 Rg4 Nd3 Bg2 Nc1 Be4 Bc4 Ba8 Nf3+ Kg2 Ng1 Kh1 Ba7 Be1 Rf4 Bf2 Nf3 Qd4 Ke2 d1N Bd5 Qc5 Kd2 Nc3 Bb6 Ne4+ Kd1 N4f6 Ba7 Bg3 Bb6 Qc3 Bg1 Qe3 Bh2 Bf2 Qc4 Bd8 Qfb4 Be7 Qf1+
3R4/8/Nn1b2rq/N2NpBRk/Q2rq1Nb/3BPQ2/rb1n4/rR1b1nK1 b - - 0 1 illegal: No possible last move
1b1N3r/1b1BqR2/R3b1K1/p4r2/1N3B2/kNr1Bb1r/Q3nPnq/3q1QB1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 a5 c4 h5 b4 e5 g4 Ke7 g5 Kd6 g6 h3 g7 e3 Kf3 h4 Ke4 d3 Kf5 d2 b6 e2 b5 Kc5 b7 Kb4 b6 e1Q c5 d5+ Kg6 e4 c6 d4 c7 e3 Na3 h2 Bc4 h3 Ra2 e2 Rc2 d3 Nb5 Ne7+ Kg5 Nbc6 b8B Nd5+ Kg6 Bd6 g8Q Qe7 b7 Ne3 Nd4 Ng2 Ngf3 Be6 c8N Qg1 Nb6 e1R Nb3 Re3 Bb5 Nd4 Ne5 Ne2 Qf1 d1B Bd7 d2 Rc7 Rc3 Nf7 Rh5 Rc6 Rf5 Nd5+ Ka4 Ba7 Rc8 Be3 Bb8 Nb4 Rf8 Bb2 Re8 Ba1 Ka3 Nd8 Ref8 Qf7 Rh8 Qg8 Ng3 Rd6 Bf3 Ra6 d1Q Bf4 Ne2 Be3 Rc7 Be5 Rc3 B5f4 Qdd6 Qb1 Qgd1 Rg1 h1B Qd3 Ba7 b8B h2 Bc7 Bb8 Qf7 Nc1 Qf1 Ne2 Qg8 Ne1 Rg5 Bhg2 Rh5 h1R Rh7 Rh3 Rf7 Bh1 Bh2 Ng2 Bg1 Qh2 Bcf4 Bb7 Bh6 Ne1 Bhf4 Bhf3 Qg7 Ng2 Qe5 Rc6 Qd5 Rc5 Qd2 Rc3 Qa2+
2Q1r2n/4nnK1/B5NP/4rp1r/bb4R1/Nr1b1Q2/NB1BRq1q/1b1k1B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 e4 d5 b4 d3 c4 d2 c5 g3 h3 f3 c6 d4 h4+ Kg4 h5 g5 c7 g2 b6 d3 b7 a4 b5 a3 b6 a2 Qa4 d1B Na3 f2 Nc2 d2 Ne1 Bb4 Ne2 g1Q Nc3 Nd7+ Kd4 Ne5+ Nd5 Qf8 b8B Bf5 c8Q Ne7 b7 N5g6 e5 Qh2 e6 Bb1 Qac6 Ba4 Nf4 d1R+ Bd2 f5 Nc2 Re1 Qd5 Re5 Na3 Qe8 Ba6 f1B h6 Bfd3 Qb3 Kf3 Re1 g4 Re2 g3 Bc7 g2 b8N g1N Nc6 Nh3 Qd1 Ng8 e7 Ng5 Bb6 Qf7 e8B Qa7 Bf7 N8e7 Bfc4 Rb8 Bc5 Nh4 Ng6 Re8 Qb3 Nf7 Qc3 Bbc2 Rg1 a1R Rg4 Rh1 Qb3 Bb1 Qd1 Ba5 Nb4 Rb6 Na2 Rb3 Bb6 Bb4 Bcb5 Qc7 Ba5 Qc6 Bc1 Qc2 Bb2 Qd2 Nf8 Nhg6 Bc4 Ngh8 Ng6 Bd6 Bb4 Qe1 Bd2 Bb4 Ree4+ Kf2 Re2+ Kf1 Bcb5 Rc3 Qb3 Qeh4 Qd5 Rb3 Qf3+ Q4f2+ Re3 Qg2 Nc4 Be2 Qc5 Re6 Na3 Rh5 Qc8 Qh2 Bc4 Re5 Bd3 Ra5 Bdb5 Nc6+ Kd5 Ne7+ Ke6 Bc4+ Kf6 Be2 Bc4 Re5 Bcb5 Bc4 Kg7 Be2 Bdc1 Ke1 Bd2+ Kd1 Qe4 Bf3 Bf1 Be2 Qec6 Bc4 Re2 Bcd3 Qf3
2n2BQ1/3RR1n1/r2bQ1rp/b1rN4/n2QqR1K/k4b2/1bq1P3/n1NR3B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 b4 Kd6 g4 c5 d4 a5 g5 f5 g6 h3 g7 h6 d5 a4 b6 c3 b5 c2 b7 h2 b6 a3 Qd3 c4 Qf3 Kc5 d6 Kb4 d7 c3 Be3 c1B Qd5 f3 Kg3 f2 Qd2 a2 Qe1 f4+ Kh3 f3 Bg2 f1R Qf2 c2 Bg5 Ra6 Nd2 Bb2 Qe3 c1B Qe5 f2 Qd5 Ka3 Qc6 Qc7 Nb3 Bd2 Qe6 Bd6 d8R Ba5 Nc1 Ne7 g8Q Qc2 Kh4 Nd7 b8R Nc5 b7 Na4 Nh3 Rg1 Rd7 f1N Nf4 Ng3 Nd5 Nh5 Ra8 Rh7 b8Q Ng7 Qb6 Bb7 Ra7 Nc8 Be7 Ba8 Bf3 Rg6 Bf8 Bb7 Rb1 a1N Rd1 Ba8 Qd4 h1Q+ Qh3 Rh8 Be4+ Qf3 Qhe6 Qe3 Bh1 Bc6 Nf4 Bf3 Re7 Qee4 Rad7 Bbc3 Rb4 Bb2 Qgf7 Rg8 Qe8 Rg5 Q8g6 Rc5 Qgg4 Nh5 Nd5 Rg6 Qg8 Ng7 Rc4 Qe5 Q4e6 Qef5 Qf2 Qfd3 Rf4 Qe4 Qd4
k3B2N/2R4N/4b2p/Kn3PQ1/Q2rrB2/nq1Q1bb1/B2Q1r1R/2r1nnq1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 e5 c4 d5 b4 Kd7 g4 Kc7 c5 Kb7 b6 d3 Kc3 h6 g5 d4+ Kb3 h3 Ka4 e3 g6 e4 g7 h2 b5 d2 f5 e2 Nc3 e1Q Ra3 d3 Qh5 d1R Bd2 e3 Bh3 e2 Ne4 Na6 Bg4 Bd6 Ng5 Rc1 N1h3 Ne7 g8B Qg1 Rc3 e1N Nf4 Nd5 Ng6 Bg3 Bf4 d2 Nh7 d1R Qg5 Nac7 Bh5 Ne3 c6+ Kb8 b7 Nf1 Bf7 Re8 Nh8 Qd5 Bg8 Re5 Be8 Re4+ Rc4 Ka7 Be6 Rdd4 b6+ Ka6 b8Q Ra7 Kb3 a4+ Kb4 a3 b7 a2 Qa8 a1N b8Q Nac2+ Ka4 Bd7 Qb3 Nb5 c7 Bc8 Qd3 Kb6+ Kb3 Ra2 Qa4 Nca3 Kb4 Kb7 Ka5 Rf2 Rc6 Bd7 c8Q+ Ka7 Qc7+ Ka8 Rc2 Qa2 Qcc3 Qb2 Bb3 Be6 Ba2 Qb3 Qcd2 Qg2 Rg1 h1B Rc7 Qh2 Rg2 Qg1 Rh2 Bg2 Qab4 Bf3 Qa4
1bb1KNQq/2R1N3/1nN2Rp1/1r3n1B/BN2q3/QrB1P2r/r2k3q/2b1b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 d5+ Kb3 f5 Ka4 a5 c4 d3 b6 f3 Kb5 d2 c5 Ke3 h5 f4 b7 g6 c6 f2 c7 a4 h6 f3 h7 a3 Qc2 g3 Ra2 g2 Qc5+ d4 Bb2 d1R Nh3 g1B Nc3 Ne7 Nf4 Rb1 Nfd5+ Kd2 e3 d3 Be2 Nf5 Ne7 f1Q Ncd5 f2 Bh5 Nd7 Kc6 Qh3 b8N f1Q b5 Bh2 b6 Qff3 b7 Qe4 Rf1 Nb6 Nd7 Bf4 b8N Qh2 Ra1 a2 Qa3 Qe8 Be5 Rb5 Rac1 a1B Rc4 Bb2 Bc3+ Kc2 Rf3 d2 Rc5 d1R Rf1 Rg8 h8Q Bc1 Qg7 Rh8 Qg8 Rd3 Rc4 Ba6 c8B Bg3 Rf4 Be1 Kc7 Bh6 Nf8 Bg5 Be6 Bc8 Nbc6 Bgh4 Bd7 Bhg3 Bb2+ Kd2 Ndb4 Rb3 Bd4 Qf7 Kd8 Qf6 Ke8 Rh7 Rf3 Bb8 Rc5 Qh8 Bc3+ Ke2 Nd8 Ra7 Rc7 Kd1 Ndc6 Rh6 Bg4 Rh3 Bh5 Raa5 Qb2 Ra2 Qa3 Ke2 Qd5 Nd4 Ne5 Rc5 Ba4 Rb5 N5c6 Kd1 Qg8 Ke2 Ba1 Kd2 Rf6 Nf5 Bc3+
1RN5/1q1B3N/N4p1b/1qn2Knn/b2QB3/4R1Pk/2rnrQ1B/2N2qqb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 b4 Kg4 c4 h5 e3+ f3 c5 a5 g3 d5+ Ke5 a4 e4 d3 c6 d4 c7 d2 b6 h3 b5 h2 b7 a3 b6 a2 Bb2 d3 Na3 h4 Qb1 d1N Nh3 f2 Ng5 h3 Bd4 d2 Qc2 Qd7 Bc5 Qb5 Rb1 a1N Bg2 f1Q Nc4 Bh6 Nb2 Nf2 Nd3 d1Q Nh7 Nb3 Nc1 Bd7 c8N Na6 b8Q Nf6 b7 Nh5 Qa7 Nd2 b8N Rf8 Rg1 h1Q Qc3 h2 Qd4 Rh8 Rb3 Qde1 Re3 Nh3 Qb6 Ra7 Qf6 Bc6 Qf2 f6+ Ke6 Rc7 e5+ Bf4 Be4 Bh6 Rg2 Qhg1 Bb6 h1B Ba7 Qb7 Bb6 Ba4 Rh2 Nb4 Na6 Qb5 Rg2 Rc2 Bc5 Qgf1 Bb6 Ng1 Bc5 Kh3 Kf5 Ngf3 e6 Rg8 e7 Nd3 e8B Ng5 Bd7 Re8 Rg1 Qb1 Bb6 Nc5 Ba7 Qfb5 Rf1 Qd1 Rfe1 Qf1 Rb3 Qg1 Ree3 Qdf1 Rb5 Qb8 Rb7 Qbb5 Rb6 Qc7 Rb8 Qcb7 Ra3 Ndf3 Bec6 Re4 Qd3 Re6 Qe1 Ree2 Be4 Qgg2 Qd5 Nce6 Bg1 Qgf2 Re3 Nc5 Bh2 Q2g1 Qf2 Nd2 Qd4
nNBr1Q2/R3bn1B/4Kpbn/5B1r/Nb3r1P/qNb2QRk/3q4/B2n4 b - - 0 1 illegal: No possible last move, all moves rejected
1NB1bQ1K/3n2r1/q2P2pn/q1Bq2bQ/nR1Q2r1/2N5/Rn3N2/1qN1r1k1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Kd6 b4 Ke5 h4 Kd4 h5 f5 h6 a5 h7 c5 e5 g6 d3 g3+ Kf3 a4 e6 g2 b6 c3 b5 c2 b7 a3 e7 a2 e8N c4 b6 c3 Qe2 Ra4 Ba3 c1R Qe7 c2 Nc7 Re1 Nh3 c1N Nf2 g1N+ Kg2 f3+ Kg3 f4+ Kh4 Qd5 Rh3 Bd7 Qe2 Be8 Nc3 Bh6 Na6 Nd7 b8Q Bg5+ Kg4 Rc4 b7 Ra4 Qb2 Ke3 d4 Nd3 Nc5 Ne2 Nb3 Ra7 Rb1 a1Q Bc5 Qa5 Qa1 Nb2 Rh2 Ng1 Ba6 Ne2 Nc1 Nh6+ Kh3 Rg8 h8Q Rg7 Qc8 Ra8 b8N Ra7 Qf8 Rb7 Qc6 Rb4 Bc8 Rc4 Qb5 Ra4 Nfd3 f2 Rg2 f1Q Nf2 Rc4 Qaa4 f3 Qa1 Na4 Rb4 Nf4+ Kg3 Nd3 Rh2 Bf4+ Kh4 Ndb2 Rg2 Qd3 Rh2 Qb1 Rg2 Qc6 d5+ Rd4 d6 Qd5 Nh3 f2 Rh2 f1Q Nf2 Be5+ Kg5 Qfc4 Qb7 Qca6 Qb5 Ndb6 Rg2 Bf4+ Kf6 Kf3 Rh2 Bd2 Qe2+ Kg3 Qh5 Rg4 Rh1 Kg2 Rh2+ Kf1 Rg2 Rb7 Rh2 Nd7+ Kg7 Bg5 Kh8 Kg1 Nce4 Nd3 Qd4 Ndb2 Nc3 Ndb6 Rh3 Rg7 Re3 Nd7 Re2 Nc4 Ra2 Ncb2 Rb6 Qac4 Rb3 Qca6 Rb4
8/2q1b1qb/2p1K2b/kB1Nn2n/3B1RBR/Bn5Q/2q1N1qP/Q2b1rrQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 f5 b4 g5 d4 a5 e5 a4 d5 c6 d6 f3 Ke3 f4+ Ke4 c3 Kf5 c2 b6 a3 b5 g3 b7 f2 b6 g2 Be3 c1B Bd2 a2 Qh5 f3 Be1 g4 Qg5 g3 Bd3 f1Q Qh6 f2 Bc3 Qd1 Be2 f1B Bb5 Be7 Ne2 g1Q Bd4 g2 Qh3 Nf6 Nbc3 Qc7 Nd5 Rg8 e6+ Kd8 d7 Nh5 Rb1 a1N Rb4 Nb3 Rc4 Bh6 Ra4 Na6 b8B Nac5 b7 Nd3 Bba7 Rg4 b8Q Qc2 Bac5 Ra5 Rb4 Ra1 Qa8 Rc1 Qa1 Ne5+ Bd3 Ba6 Rc4 Bb5 Ba3 Ba4 Rb4 Qe3 Rc4 g1Q Rb4 Qg2 Rg1 Qcd2 Bb5 Qec3 Rc4 Rg8 Rb4 Qg7 Rg4 Bg2 Rh4 Rf1+ Bf2 Qcg3 Rbf4 Bf3 Bd4 Qg2 Nc1 Bd1 Ne2 Qb6 Ndc3 Kc7 d8Q+ Kb7 Qd5 Qc7 Qe4 Qc2 Nd5 Bc5 e7 Bd6 e8B Be7 Bd3 Bb5 Qef3 Ka6 Ke6 Ka5 Bd7 Ba4 Ba6 Bb5 Bdc8 Bd3 Bb5 Bh7 Bd7 Re1 Qf1 Rf8 Qh1 Rg1 Be8 Rf5 Bg6 Rf7 Bf5 Rf8 Bg4 Rf5 Re4 Rff1 Rf4
2Bn2q1/K1b1Q2q/P2B1Bp1/3QQk2/1n1RR2q/b3rnb1/Qq1r2b1/2N1N3 b - - 0 1 illegal: No possible last move
2knbqr1/q1N1q1B1/p6n/2BK2NR/6R1/P1bN2nR/1QrQ1N2/nq3r2 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 Ke2 Kd7 Ke3 g5 Kd4 b5 h4 e5+ Kd5 e3 f4 a6 d4 g3 c4 e2 h5 e1Q a3 g4 h6 b4 f5 e4 h7 e3 f6 b3 f7 e2 Rh5 b2 Nh3 g1Q Nc3 b1N Ne4 g2 Nef2 g3 Bh6 Bd6 f8B Qe8 c6+ Kc7 c5 Be5 Qd2 Bd7 Nd3 Kc8 c7 Nc6 Nhf2 Nd8 Bhg7 Nh6 Ra2 Rg8 h8N Qc1 Nf7 e1Q Ng5 Qcd1 Be7 Qf8 Rc2 Qee2 Rc4 Be8 Qb2 Nd2 Bd6 Kd7 c8N Qb1 Na7 Nb3 Nb5 Na1 c6+ Kc8 c7 Bf6 Rb4 Qee7 Bc5 Rb8 Rc4 Rb6 Rc3 Re6 Rb3 Re2 Rb4 Rc2 Rb3 Kd7 c8R Be5 Rc6 Bf6 Rb6 Kc8 Nc7 Be5 R6b4 Bf6 Nh1 Qge3 Nhf2 g1R Ra4 g2 Ne1 Nb7 Bb4 Re2 Kc4 Qd7 d5 Rf1 d6 Qa7 Bc5 g1N Rbh3 Qde7 Rb4 Bc3 d7+ Kb8 Ra4 Rc2 Rb4 Ne2 Ra4 Ng3 Rb4 Qb6 d8Q+ Ka7 Qd5 Kb8 Qd2 Nd8 Kd5 Kc8 Ned3 Qa7 Rg4
N1nnk1b1/q3r2P/1QBbqb2/3p2B1/R1b5/2QN1Qn1/2Rq1r2/1KB1B2n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 b4 g5 c4 f5 Kc2 a4 h4 g3 e4 g2 h5 g4 c5 a3 b6 f3 c6 g3 c7 a2 b5 f4 b7 f2 h6 f3 b6 d3+ Kb2 d2 e5 Nc6 b8B Kf7 b7 Nge7 h7 Ra7 Bd3 f1N Na3 f2 Ne2 g1Q Nf4 g2 Ba6 d5 Nd3 Qe8 Rh3 Qh2 Nc4 g1Q Nb6 Nd8 Na8 Be6 c8Q Rg8 Qc4 Rg2 Qf3+ Qf4 Qb4 Nc8 Rh2 d1N+ Kc2 Qe7 Bd6 Qd7 Be7 Ng3 Bg5 Bd6 Qc4 Kf8 Qc6 Bf7 e6 Bg8 e7+ Kf7 Qb5 Qe1 Qb6 f1B+ Nf2 Bc4 e8Q+ Kg7 Qee3 Kf7 Qd2 Qee6 Nd3 Nf2 Qc3 Ke8 Kb2 Rg1 Rg2 Nfh1 Rc2 Qa4 Bd2 Rg2 Be1 Rf2 b8B Re7 Bb7 Bc5 Bc7 Qa7 Bd6 Qfe3 Bdf4 Qe2 Bc1 Qd2 Rb1 Ba3+ Ka1 Bc5 Rb4 Bd6 Ra4 Ne4 Qcb3 Neg3 Kb2 a1B+ Kb1 Bae5 Qc3 Bf6 Bc6+
2RB4/1qNnbK1p/nQ1BR3/2R2Pq1/1bBrN2k/3b4/1Q3r2/r1n1n1Bb b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 e5 c5 d3 Ke3 d2 b6 a4 c6 h3 c7 h2 b5 a3 g5+ Kf5 b7 a2 g6 Nf6 b6 Be7 g7 Rf8 g8Q Nfd7 Bc4 Na6 Qc2 d1Q Qb2 Qb3+ Nc3 Qb4 Rb1 a1N b8B Nb3 b7 Rf7 Bd2 Nc1 Ba7 Qb3 b8B Qb7 Qf8 Kg4 Nh3 Kh4 Re1 h1B Nb5 Rf6 Ng5 d4+ Kf2 d3 Ke3 Rf7 Ba5 d2 Qg7 d1R Qg6 Rd4 Qb6 Nf6 Ra1 Bf5 c8R Nd7 Bd6 Qg8 Nc7 Qg6 Nh3 Qg5 Nf2 Rf6 Ra3 Bg6 Rc3 Rf7 Bd3 Rf8 Rc5 Rf5 Kd2 e3+ Kc3 e2 Bc4 Rf7 Ne4 Rf8 Nf6 Bd3 Ne4 Rf7 Rg1 e1N Rg3 Qh5 Rg6 Qg5 Re6 Rf6 Nf2 e4 f5 e3 Ne4 e2 Nf2 Rf4 Ne4 Rf2 Kd4 Rf8 Qc6 Rd8 Kd5 Ng2 B5b6 e1B Ba5 Qb5 Qb6 Bb4 Re5 Ne1 Ke6 Qc6 Kf7 Qb7 Re6 Nf6 Bh2 Rd4 Bb8 Nd7 Bg1 Qg4 Ne8 Qg2 Bd6 Qg5 Nc7 Qe3 Qa7 Qg5 Nd5 Nab8 Qa6 Ra7 Bd8 Ra8 Qb5 Ra1 Nc7 Na6 Qb6
3n4/1Q1RNBP1/nBp2NBk/1N1q4/1Q1bb1nK/b2r1b2/2q2Rq1/1r2N2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 a5 e4 f5 d4 Kf7 b4 Kg6 g4 h5 b6 a4 b5 c6 d5 a3 e5 c3 e6 a2 b7 c2 b6 f3 d6 h3 Kg3 h2 g5 f2 e7 f4+ Kh4 f3 d7 Ra3 Be3 c1Q Bc4 f1N Qd2 f2 Nc3 Na6 b8Q Nh6 e8B+ Nf7 b7 Qc2 Nd5 Rd3 Bb6 Ba3 Nf3 Ne3 Rhf1 h1B Qb4 Ng4 Rad1 a1B Ne1 Bd4 Ne7+ Kh7 g6+ Kh6 g7 Bf3 Qa7 Be4 b8N Rh7 Rg1 f1Q Qb7 Qfg2 Rf1 Rh8 Rf2 Rg8 Bc5 Qa5 Bb3 Nd8 Bb6 Qd5 Bg6 Rf8 Rdd2 Rff3 Bc4 Rb3 Rd3 Rb1 Rd1 Rd3 Ba2 Nf7 d8N Bf3 Ne6 Nd8 Nc7 Bf5 Nd7 B5e4 Nb5 Qh1+ Kg3 h4+ Kf4 h3 Kg3 h2 Kh4 Qg2 Nf6 h1N Rdd2 Qe5 Baf7 Qd5 Rde2 Bf5 Re6 B5e4 Rd6 Qda2 Rd7 Qab3 Ne8 Qd5 Nf6
k1N3br/2Nq2p1/nKbbn2q/R1Nq3r/2r2qP1/r1R4R/2B1QB2/2QN4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Qd3 cxd4 Qc3 h4 Qg3 hxg3 Kd2 d5 Kd3 Kd7 h4 Kc7 c4 Kb7 b4 a5 e4 f5 b6 a4 c5 a3 h5 f3 h6 f4 e5 g2 h7 f2 b5 f3 e6 a2 e7 Ra3+ Nc3 Be6 e8Q Na6 c6+ Ka8 c7 Ne7 c8N Nc6 Rh2 Qf6 Ne2 g1R Nf4 Rh1 Rh3 Nd8 Be3 Bg8 Ne6 Qh6 Nc5 Bd6 Qe7 Ra4 Nd1 Rc4 Qe8 Ne6 b7+ Kb8 Be2 f1B Bf2 Bg2 Rc1 a1R Rc3 Ra3 Bf1 Nec7 Qe2 Ne6 Rh5 Rh2 Re5 Rh5 Rg5 Kc7 b6+ Kc6 b8Q Bh1 Bh4 f2 b7 Bf3 Bg2 f1Q Qa8 Kc7 b8N Qf2 Bh1 Bg2 Bg3 Qf4 Bf2 Bf3 Nbd7 Bg2 Nf6 Bf3 Qc6+ Kb8 Qc7+ Ka8 Ne8 Bg2 Qb6 Bf3 Qb1 Bg2 Qc1 Bf3 Kc2 d3+ Kb2 d4 Nc7+ Kb8 Bg2 Bc6 Be4 d2 Bc2 d3 Re5 Ra1 Kb3 Raa4 Ne3 d1Q Rf5 Qh1 Nd1 d2 Nb7 Re4 Ra5 Re3 Nc5 Rc4 Nb2 d1Q Ka3 Qd3 Nd1 Qhd5 Kb3 Nb4 Ka3 Bb7 Ka4 Na6+ Kb5 Bc6+ Kb6 Q3f5 Rb3 Qf7 Rbb5 Ra3 Rb3 Qd7 Rc3 Bf7 Nb5 Rf8 h8R Ka8 Rh7 Rh8 Qee3 Bg8 Qe2 Qg6 Rh6 Rf5 Rh4 Qgh6 Rhh3 Rh5 Nc7+
RN1b1BQn/5kpq/Qnq2BR1/r2r4/4P3/n2R2Nb/1b1K1R2/1rn3bB b - - 0 1 illegal: No possible last move
2R2Q2/QK3Pn1/BBR1B1r1/bqqb3r/2rpk3/4Brn1/NqN5/2Qn3q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 c4 Kf5 b4 d5 b6 e5 b5 a5 b7 h5 g3 h3 b6 e3+ Kd3 e4+ Ke2 h2 c5 a4 c6 h4 c7 a3 Qb3 d3+ Kd1 d2 Kc2 d1N Qa2 d4 Kb3 h3 Kc4 e2 Kb5 e1R Qb3 a2 Nc3 e3 Qa3 e2 Qa7 Bb4 Nf3 Nc6 Ka6 Rh6 Be3 Qg5 Rc1 a1Q+ Na2 Nce7 g4+ Ke4 f5 Nf6 Rc6 Be6 b8Q Qb2 c8Q Nh5 b7 Ba5 f6 Qc5 g5 Bd5 g6 Nf5 g7 Nfg3 g8B Rg6 Be6 Ng7 Qd6 Rb8 f7 Ra8 Rg1 h1Q b8B h2 Bc7 Rb8 Qe7 Rb4 Qef8 Rc4 Bb6 Qbb5+ Kb7 Qg2 Kc7 h1R Kb7 Rh5 Rh1 Rhg5 Rh8 Rh5 Ne5 Qh1 Nd3 Qb2 Ndb4 Qb5 Bfh3 Rf1 Nc2 Rf3 Bf1 e1Q Qc7 Qeb4 Be2 Q5c5 Rg8 Rc3 Ba6 Qbc4 Qfe7 Q4b5 Rc8 Rc4 Qf8 Qcb4 Qce7 Q4c3 Qa3 Qcb4 Qc3 Q4a3 Qd2 Qac5 Qc1
r1Bn1B2/b2q1P1Q/1nn1kB1Q/p4q2/5B2/KR3bNq/1Q2b3/R2nNbr1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 h5 g4 a5 b4 d5 c4 e5 Kc2 e3 Kb2 h3 b6 h2 b5 e4 f5 e2 c5 e1Q f6 d3 g5 d2 c6 e3 c7 e2 b7 h4 b6 h3 g6+ Ke6 f7 d4 g7 d3 Na3 Qd7 Nb5 Qf2 Rb1 e1N Ne2 Nc6 b8B Ba6 c8Q Bc5 b7 Nge7 g8Q Nf3 Qb3+ Nd5 Bd6 d1B b8B d2 Na3 Nd8 Ng3 Nd4 Nc2 Qf5 Bf8 Ba7 Be5 Bde2 Ne1 d1N+ Ka3 N4c6 Qh7 Rg8 Qb2 Nb6 Bf6 Rg7 Rg1 h1B Bf4 h2 Bh3 Bhf3 Rf1 Bac4 Qa6 h1Q Bg4 Qh3 Ra1 Bg2 Rf3 Bgf1 Rb3 Bd5 Qd3 Bh1 Qh6 Bhf3 Bh5 Qg5 Qdh7 Rg8 Bg6 Qgd5 Bd3 Qdf5 Ba6 Rg4 Bc8 Rg7 Nh5 Rg1 Ng3
N1q1bN1N/1rN1P1B1/Q2KBr1b/r5R1/6qQ/3nQ3/2qn2pR/1k1r2qb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 d2 h5 g3 e3 f3 b6 a4 b7 f2 b5 g4 h6 a3 b6 a2 c5 g2 c6 g3 h7 Ra5+ Bb5 f1B c7 Nf6+ Kd4 d5 Na3 Na6 b8N Bd7 c8N Nc5 b7 Nd3 Rh6 Be8 Bb2 Ne4 Ne2 g1Q Qb3 d1R Bc4 Nd2 Nb5 Bg2 Nc7 Bh1 Nd7 g2 Rh2 Bh6 Ncb6 Qc8 b8Q f6 Rc1 a1Q Qa7 Qb1 Qa6 Qc2 Nf4 Rf8 h8Q Rf7 Nf8 Rh7 Nca8 Rb7 N4g6 Qb1 Kc3 Ke4 Nc7 f5 Nba8 f4 Qhf6 f3 Nh8 f2 Qh4+ Qg4 Rc2 f1R Qa3 Qc1 Ba1 Ke5 e4 Rf6 Qb3 Kf4 e5 Ke3 Bb2 Qc8 e6 Qb1 e7 Qa2 Rc1 d4+ Kc2 Qa4 Be6 Qc6+ Bc3 Qf3 Rb1 Qg4 Qa3 Ke2 Rb5 Ne5 Bf7 d3+ Kb2 Re6 Rb4 Rb1+ Ka2 Kd1 Rb5 Kc2 Nd7 Nb3 Nf8 d2 Bb2 Rg6 Be6 d1Q Bd4 Nd2 Bc3 Nef3 Bg7 Ne1 Rh5 Rf6 Rg5 Rab5 Qag3 Nd3 Ka3 Rc1 Qe3 Kb1 Qa5 Qc2 Qa6 Nf4 Nb6 Ra5+ Kb4 Ra7 Nba8 Rd1 Rh5 Rb7+ Rb5 Qb2+ Kc5 Nd3+ Kd6 Qb3 Re5 Qc2 Rg5
1N1qQ1br/2B1P1Rq/bB5N/1n1Q3q/nbB3Bk/pq2RK2/1b2n3/2Q1r3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 g5 c4 a5 b4 d5 b6 d3 h5 d4 b7 f3 b5 d2 h6 d3 b6 g3+ Ke3 g2 c5 g4 e5+ Kg5 c6 f5 c7 f4+ Ke4 f2 h7 f3 e6 g3 Rh4 a4 Bb2 a3 Be2 f1B Qc1 f2 Rh2 Na6 b8Q Bb4 b7 Nc5+ Kf3 Na4 Nh3+ Kh4 Nc3 g1B Ne4 d1Q Rg2 d2 Nhg5 Nh6 Nf7 Nf5 Nf6 Nd6 Nh6 Nb5 Bd4 Qb3+ Be3 d1Q e7 Ra5 Qa8 Be6 b8B Bg8 c8B Ra6 Bf4 Re6 Bc7 Bh2 Rg1 g2 Nd7 Be5 Nb8 Bb2 Qd5 Qdc2 Ra2 Qg6 Bc4 Qh5+ Ng4 Bd3 Beb6 Re1 Be6 f1N Ra1 Ng3 Bf5 Qf7 Nh6 Qh5+ Bg4 Ne2 Ra2 Rd1 Re1 g1Q Ra1 Qh2 Rb1 Ng3 Re3 Re1 Ra1 Bf1 Ra2 Bf6 Rd2 Bb2 Rd4 Qhc2 Rf4 Bd3 Rf7 Ne2 Rg7 Bf5 Bf4 Bc8 Bfc7 Ba6 Rc3 Bf7 Qf4 Rf8 h8Q Qh7 Qc1 Re8 Qf8 Be6 Qf7 Rh8 Qe8 Bg8 Re3
5Nnn/BnqNpRQk/1b1r1q2/2Br3q/qNN1r2r/1b2Q3/RP6/K4B2 b - - 0 1 illegal: No possible last move
1r1N2Q1/N2rpbBK/4q1r1/k1N2Rb1/4RnNn/3BP1Q1/b1Q1q3/1br3q1 b - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 g5 Kd3 h5 Ke4 d5+ Ke5 Kd7 Kf5 Kc7+ Kg6 Kb6 c4 a5 b4 h4 f4 g4 e3 a4 f5 d3 f6 h2 f7 d2 Qf3 d1R Qe2 g3 Nc3 g2 Ra3 d4 Qd3 h3 Nce2 Qd7 Qc3 d3 Ng3 d2 Ne4 Ra6 Be2 Nc6 Nc5 Nh6 Bd3 Nd4 Qc2 Ne6 Bb2 Nf5 Nf3 Bh6 f8N Bg5 Rf1 g1Q Bg7 h1B Ne5 h2 Ng4 Be4 Rf3 Rg8 Kh7 Nf4 Nfe6 h1B Nd8 Qe6 Ra1 a3 Rc1 a2 Ra1 Ka7 b6+ Kb8 b7 Kc7 b8N Kb6 b5 Ka5 b6 Bcb7 Rb1 a1R Rb4 Bbd5 b7 Rdc1 Rf2 d1Q Rf1 Qe2 Ra4+ Kb6 Nbc6 Rab1 Rf2 Ra7 b8Q+ Rb7 Qe5 Rd7 Na7 Rb5 Rb4 Ka5 Rf1 Rb8 Rf3 Nh3 Qg3 Nh4+ Rf5 Nf4 Ncb7+ Ka6 c5+ Bc4 c6 Bhg2 Be5 Rg6 Nc5+ Ka5 c7 Ba2 c8Q Bed5 Bg7 Bge4 Ba6 Bd3 Re4 B5c4 Qb2 Bdb1 Qc2 Qc6 Bb5 Bf7 Bd3 Qd6 Nde6 Qd5 Qg8 Qc4 Nd8 Qd5 Ne5 Qe6 Ng4
R1q4r/b2p2n1/1k1rBn1Q/5RR1/b1qBq1Qr/K2Pn1R1/6BN/1q3r1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 c4 h5 e4 a5 g4 f5 b6 a4 e5 a3 e6 h3 b7 a2 g5 b3 d3 h4 Kd2 b2 Kc2 f3 Kb3 f4 g6 h2 e7 f2 c5 h3 g7 f3 c6 Nf6 g8Q Na6 b8R Bb7 c7 Qc8 Bf4 Bc6 Rb4 Ba4+ Ka3 Nc5 Nc3 b1Q Qg7 Ra6 Be3 Ne6 Bg2 f1R Ne4 f2 Qh6 Ng7 Qg4 Rd6 Ng3 Qc2 Rf4 Qc4 Rc1 a1N Bd4 Nc2+ Kb2 Ne3 Nf3 Qb8+ Ka3 Qc8 Rg1 h1Q Rf5 h2 Bh3 Qg2 Re1 h1R Nh2 Qe4 Bg2 Kf7 e8B+ Ke6 Bf7+ Ke7 Nf3 Rh4 Be6 Rc6 Nh5 Kd6 Bh3 Q8a6 Re2 Qb7 c8R Rd1 Qgg5 f1Q Ra8 Qc8 Nh2 Qe1 Ng3 Kc7+ Kb2 Kb7 Reg2 Bc5 Nh1 Ba7 Ka3 Rd6 Rg4 Rb1 R1g3 Rc1 Bg2 Qf1 Rc5 Kb6 Qf5 Qd1 Rg5 Qdc2 Qf3 Qb1 Qg4 Rf1 Rcf5+
1n6/NQQp2Br/3n1q2/Pb2Q1Nk/2B2n2/NQ1b2KR/1bq2R1r/3nq2b b - - 0 1 illegal: No possible last move
rrNnnrB1/b1P1n1q1/2q5/B7/1qQ1Nkb1/QR2RNn1/1Qq2p2/K3N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 f5 Kb2 a5 b6 d3 g5 d4 b7 a4 c5 h3 b5 a3+ Ka2 h2 c6 h4 g6 d2 b6 f3 g7 d3 c7 h3 Ne2 f4 Rg1 h1Q Qc2 d1N Qc4 d2 Nd4 f2 Nc2 f3 Ne1 h2 Rg3 Ne7 g8N Nbc6 b8Q Qd4 b7 Ne3 Nf6 d1Q Bd2 N3d5 Ba5 Nd8 Qa7 Bg4 b8Q Qc2+ Qb2 Kf4 e5 Rg8 Bd3 f1R Ne4 Nf6 e6 Ne8 Nbd2 Qd6 Qaa6 Qb4 Rb1 f2 Ka1 a2 Qa7 Bh6 Ndf3 Rf8 Rh3 Bg7 Rg3 Bd4 Qaa6 Ba7 Be2 Ng8 e7 Qg2 Bd3 h1N Rh3 Ng3 Be2 Ng7 e8N Ne7 N8d6 Ne8 Nc8 Rb8 Rh5 Rh1 Re5 Rhh8 Qd6 Qh1 Qdd3 Qh6 Qda3 Qc6 Bd3 Rh5 Re6 Rhb5 Re5 Ra8 Bf1 Rbb8 Bh3 Bh5 Be6 Bg4 Bg8 Qcb5 Qbc3 Bh5 Rb3 Ng7 Rd5 Bg4 Rd3 Qc6 Re3 Ne8 Q3d4 Qd1+ Kb2 Qe2+ Qd2 a1Q+ Kc2 Qaf6 Kb1 Qg7 Qdb2 Qc2+ Ka1
1q4N1/kbP2br1/Q3bb2/qr1NN3/1B1B3B/3nRnpR/n6q/nBQ2K2 b - - 0 1 illegal: No possible last move
1bkr2r1/nqp1R1b1/2nbR1N1/2P2B1r/1bQq1Q2/4BN1r/6Qn/5RKQ b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 f4 Kd7 c4 h5 d4 b5 a4 e5 g5 e3 f5 e2 d5 h4 f6 b3 a5 h3 d6 e4 f7 h2 g6 b2 g7 b4 a6 b3 a7 Nc6 Ra6 Nf6 g8Q Ng4 Na3 b1Q Be3 b2 Qg6 Rh5 Bc1 Kc8 Nf3 g1R Nc2 g2 Qd5 Bg7 Nh4 Qf6 Qd3 Qd4 Qh7 Rb8 Ng6 Rh3 a8Q Rh5 Kd2 e1B+ Ke2 Bg3 Ne1 e3 Nf3 B3e5 Ke1 e2 Qb3 Qbe4 Be3 b1N Qb5 Nc3 f8Q+ Kd7 Qh6 Rd8 Qff4 Rh3 Qb4 Nb5 Qh4 Nba7 Qf2 Ke6 d7 Bd6 Qc3 Qb1+ Qc1 Qb7 Rb6 Re8 d8R Rh5 Rb8 Kd7 Qc2 Rf8 Re8 Rfh8 Re4 Rb8 Re7+ Kc8 Rb5 Rh3 Rbe5 Rh5 Qd3 Rh3 R5e6 Rh5 Kd2 e1B+ Ke2 Beb4 Q2g3 Nge5 Kf2 Rh3 Nd2 Nf3 Be2 Rd1 Rf1 h1R Qde4 Nh2 Bd3 Rh5 Nf3 g1B+ Kg2 Ng4 Qd5 R1h3 Bf5 Nh2 Kh1 Rd2 Qg2 Qf6 Bb6 Nd8 Nfe5 Qa6 Nf3 Nb5 Qh4 Bf4 Qa7 Qb7 Qa6 Nc6 Qgg3 Ra8 Qhg4 Kb8 Ne1 Bge3 Qe4 Rd7 Qg1 Bfd6 Qeg2 Bd4 Nf3 Bf2 Be3 Qh4 Bg5 Ba7 Q4g3 Qd4 c5 Kc8 Qaa2 Kd8 Qe5 Rc8 Be3 Bb8 Qf4 Nba7 Rf7 Re7 Qc4 Re8 Rfe7 Rf8 Qgg3 Rg8 Kg2 Bd2 Qh1 Bb4 Re8+ Kd7 Kg1 Rd8 Qgg2 Kc8 R8e7
1bqb2Q1/kPBB3B/1nr3r1/bqr5/2b1Q3/1N1Qp1RQ/3q3N/1KRq2n1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 Kc2 Kc7 b6+ Kb7 b5 a4 g5 e3 f5 a3 g6 h3 c5 a2 g7 e4 f6 h2 f7 e2 Na3 e1B Qg4 h4 Bb2 h3 Be2 d3+ Kc1 d4 Qh5 d2+ Kc2 d3+ Kb3 d1Q+ Nc2 d2 Bd3 e3 Qg5 Nh6 g8B Bd6 f8Q Be6+ Bc4 Ra6 Qe8 Nf5 Qgg6 Ng3 Qd3 Rh5 Be5 Ne2 Kb2 Nd7 Bh7 Qc8 Rc1 a1B+ Kb1 Bb8 Nf3 Ng1 Bc7 Bf6 Na1 Bd8 c6+ Ka8 b7+ Ka7 Nb3 Rc5 Qeg6 Nb6 Qge4 Qe2 Bd5 d1Q Bc4 Bg8 Be6 Ba5 Bef5 Qed2 Bd7 Ne2 Rf1 h1Q Rg1 Bc4 Rg3 Qhf1 Nh2 Ng1 Be5 Nd5 c7 Rac6 b6+ Ka6 Ng4 h2 Bd6 h1R Nh2 Nf3 Bf4 Rg1 Bd6 Rg2 Be5 Ng1 Bf4 Ba7 b8Q Qfe2 b7 Nb6 Rh3 Rgg6 Rg3 Qb4 Bd6 Qed2 Be5 Qb5 Qa8 Qb8 c8Q Qc7 Bg4 Qd7 Bc7 Qe8 Qce6 Qg8 Qac8 Bb8 Bh3 Qf8 Qg8 Ka7 Bd7 Qf5 Be8 Qf8 Qh3 Qf5 Bd7 Qe6 Be8 Qc8 Bd7
RKN2n1k/1P2n1rB/2R1nrp1/5nN1/qBqb4/1brN4/4N2r/1Bq2Q1Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 b4 Kf7 c4 d5 e4 a5 h4 a4 h5 a3 b6 d3 c5 g3+ Kf3 d2 b7 g2 c6 d4 e5 a2 b5 d3 h6 Qg5 b6 Be6 h7 Bc5 c7 Bb3 c8N Ne7 Na3 Bd4 Rb1 a1N Nc4 Nd7 b8Q Nf8 b7 Nc2 Rh6 Ra3 Ne2 g1R Rc6 Qh6 Qe1 d1Q Ra1 d2 Nb2 Qe6 Ra2 Qc4 Nd3 Qa4 Bb2 Qc1 Bc3 d1N Bb4 Nde3 e6+ Kf6 Qd6 Rg2 Qc5 g6 Qc4 Rg8 h8N Kg7 Nf7 Rh2 Ng5 Kh8 Bh3 Rg7 Qh1 N3d5 Bf1 Nc7 Qa6 Ne3 Ra1 Ng8 e7 Nce6 e8B Ne7 Bf7 Qc4 Bg8 Qc1 Bg2 Qc4 Kf2 f3 Kg3 f2 Bh7 f1Q Be4 Qfc1 Kf3 f4 Bf5 Rh3+ Ke4 f3 Qb5 f2 Ra2 Bb6+ Ke5 f1R Kd6 Rh2 Be4 Bd4 Qf5 Nd8 Kc7 Nde6+ Kb8 Rf4 Qh3 Rf6 Q3f1 N3f5 Ra1 Bd1 Ra2 Rc3 Ra3 Bb3 Ra1 Qab5 Ra8 Qa5 Ne5 Qaa6 Bb1 Qa4 Nd3
rq6/1pN2KQ1/1N3b2/2qrQ1R1/1RB1N3/nQP1Bn2/2b1bq2/2rrQb1k b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 f4 d5+ Kc5 e5+ Kb5 h5 a4 d3 a5 b3 c3 d4 Kc4 h3 g5 h2 a6 h4 g6 d2 g7 h3 f6 b2 a7 d3 f7 Be7 f8Q Nf6 g8N Ng4 f5 Nd7 f6 Nb6+ Kb3 Rh5 f7 Bf6 Ra3 Nc4 Ne2 Kf3 Qb4 e4 f8Q e3 Qb5 Rd5 Nf4+ e2 Qg7 Nge5 Ra4 Na3 Rg1 h1R Rg5 h2 Rb4 Bh3 Ne6 Qb8 Qe1 d1R Nc7 d2 Ne7 Rg1 Qc5 h1Q Nc8 Qg2 Qd6 Qf2 Nb6 Qc5 Qde7 Ng4 Qe5 Nh2 Qh4 e1Q Bc4 Qe2 Qe1 Qef2 Rg4 Qc8 Rg6 Bf1 Rg5 Rb8 a8Q Rh1 Qa4 Ra8 Qf8 Qb8 Qfe7 Qg3 Qb5 Kg2 Qg7 Nf3 Be2 Rd3 Qc6 Rg1 Qce6 Kh1 Qeg8 Bg2 Qf1 Qgf2 Qc4 Re1 Qcd5 Nc2 Qdf7 d1B Nd2 b1B Ne4 Rd8 Be3 Rd7 Bd3 Be2 Qfg8 Rc1 Qd1 Qe7 Kc4 Rd8 Qd2 Rgd1 Qe1+ Bgf1 Qge6 Rd6 Kc5 Qef8 Qb3 Na3 Bc4 Bc2 Nd2 Rc6+ Kd5 Rc5+ Ke6 Rd5 Ne4 Qc5 Kf7
4QQb1/PB1K2B1/R1n5/b2bqr2/nr1knbNn/2rR2q1/p7/Q1QR2N1 b - - 0 1 illegal: No possible last move, all moves rejected
2B2QN1/Pn4kq/Qp2Nr2/8/2QB1b1q/n1bq1n1b/2qRr2R/1Qn2N1K b - - 0 1 illegal: No possible last move
rN6/k2bKnB1/4n3/bBn1R3/1Qn1Qnq1/1RbpR3/P1BN4/1r1R2bn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 b5 Kd3 e5 Ke4 g5 Kd5 b3 h4 b2 f4 e4 c4 e3 f6 b4 f5 d3 c5 d2 c6 g3 h5 g4 c7 e2 h6 e1B h7 b3 Rh6 g2 Nf3 g1B Rh5 g3 Ke5 d5 f7+ Kd7 f6 Kc6 Nh4 Kb6 Nf5 g2 Be2 d4 Bb5 d3 Ng7 Na6 Rg5 Ka7 Ba4 Bd7 c8B Nc5 Qf3 d1N Ne6 Nf2 Nd2 b1N Ba6 b2 Nd4 Na3 B6b5 b1N Qe4 Nh1 Bc2 Nh6 Bb2 Bg7 Kd6 Qg8 f8Q Nc4+ Ke7 Nba3 Rd1 Nf7 Re5 Rb8 Nb1 Ba5 Nd2 Ncd6 Bc3 Ng5 f7 Nac4 Ba1 Nge6 Nc6+ Kb6 Bb2 Rb7 Nb8 Ka7 Rf5 Bgc3 Re5 Qg6 Ba1 Rg8 h8R Qg4 Rh3 Rb6 Re3 Rh8 Ba6 Rb1 Bb5 Rg8 Qg7 Rd8 f8R Nf7 Rg8 Rc8 Qf8 Rd8 Na6 Ra8 Nb8 Bh2 Rg6 g1N Rf6 Ne2 Bb2 Ned8 Rb6 Bg1 Ba1 Nde6 Bb2 Nfd6 Qff4 Nf7 Ba1 Nb2 Qb4 Nc4 Qe4 N2f4 Qa4 Na3 Rg5 Bc8 Be8 Bh8 Rb3 Bb2 Qab4 Nc4 Bb5 Bd7 Rh5 Ba3 Bd4 Bb2 Bg7 Bc3 Re5
3B3r/1br1BK2/3br3/1Q1B2bn/rR2q1Qk/1P1NN1b1/1R1bpbB1/1N1n4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 h4 Kg6 c4 Kh5 f4 d5 f5 g5 b3 e5 c5 a5 c6 g3 b6 g4 b7 d3+ Ke3 a4 c7 d2 f6 d4+ Ke2 a3 f7 e3 Kd3 g2 Ke4 e2 Ra2 e1B Nc3 d3 Rh2 Nd7 Kd5 e4 Ke6 e3 b8N e2 Qc2 d1R Nf3 g1B Na4 d2 Qc6 g3 Qc4 g2 Nc6 Be3 Nc3 g1B Nd5 Nh6 Qb5 Bg5 Bg2 Bgf2 Rb2 a2 Ncb4 a1B Ne3 Nf5 Nd3 Bb7 c8B Bd6 f8B Ra4 Be7 Nf6 Kf7 Qa5 Bd8 Qb4 Be6 Qe4 Bd5 Bfg3 Rh1 Bef2 Be7 Rg1 Bd8 d1R Nd2 Rde1 Nb1 Ref1 Bd2 Rc1 Bb4 Rc6 Ba3 Rgc1 Rd1 R1c5 Rc1 Rca6 Rc4 Rcc6 Rb4 Rc4 Ra2 Bc3 Rc2 Bd2 Rb2 Kh6 h5 Rc7+ Be7 Kh7 h6 Nh5 Rc4 Rb6 Bb4 Rba6 Ba5 Rac6 Rb4 Ra6 Nf1 Ne3 Bb6 Nd1 Ba5 Rcc8 Bad8 Rc7 Ne3 Bge5 Ke6 Kg6 h7 Kh6 Kf7 Beg3 Bh1 Bf6 Bg2 Kg5 Nf4 Kh4 Nd3 Re8 h8Q Bg5 Qd4 Rh8 Na3 Bc5 Qg7 Re6 Nb1 Bcd6 Qg6 Bc5 Qf5 Bcd6 Qg4+
1nN1Kb1B/1QbB2b1/2Q1nR2/2r1nb2/2R1bN1p/7r/1bQ3BP/1kn1B1q1 b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kf7 Ke3 Kf6 Kf4 a5 c4 h5 d4 e5+ Kg3 Kf5 f4 g5 c5 a4 b6 b3 c6 a3 c7 e3 b7 Ke4 f5 e2 f6 e1N d5 a2 d6 b2 d7 Nf3 f7 Nh6 Qd6 Nd4 Nf3 Ra5 Qb4 Rc5 Qd2 Ne6 Na3 b1B Kg2 g3 Kh3 g2 Nc4 g1B Nb6 Ng4 Ne1 Bd4 Ng2 Bb2 Nf4 Bd3 Rb1 a1B Qc2 Kd4 Kg3 e4 Bg2 e3 Bd2 e2 Rbc1 e1N Rf1 Ne5 Kh3 Qf6 d8B Qg7 Bf6 g4+ Kh4 g3 Bb4 Bd7 c8B Be4 Bd2 Nd3 Be1 Rh6 Rf2 Qg6 Bh8 Ke3 Qb1 Qg7 Rc4 Nc1 Qc2 Qg8 Bf3 g2 Rf1 g1B Bg2 Ng7 Kg5 Bdf5 Bd7 Rh7 Kf6 Ne6 Nc8 Bf2 Bh1 Qg1 Bg2 Bg3 Rf2 Bg7+ Ke7 Bf8+ Ke8 Rh6 Qa4 Rh7 Rf1 Rh6 Qc6 Rh7 Bf2+ Kd2 Be1+ Kd1 Bc3+ Kc2 Be1+ Kb1 Rf2 Bd6 f8Q Bc7 Qh6 Bh4 Rf3 Be7 Qg6 Bf8 Rf1 h4 Rf2 Rg7 Qh7 Rg3 Rf1 Na6 b8Q Rh3 Qbb7 Nb8 Nh5 Bg4 Rf6 Bgf5 Nf4 Bg4 Qh6 Nf7 Qh5 Bgf5 Bb4 Bc3 Rh6 Bf6 Qe2 Bab2 Be1 B6g7 Rf6 Ne5 Qc2+
1r1qNb2/3bbb2/Q1N4k/Bp1b1b1n/n2R1n1B/2QP4/1r2RQ2/1B1Qn1K1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 g4 h5 e4 c5 a4 f5 d6 Kf7 a5 Kg6 e5 f3 e6 h3 d7 f4 e7 b3 e8Q+ Kh6 a6 c4 a7 h2 Ra2 b2 Qa4 h4 Qa6+ Nf6 Na3 b1B Qe1 h3 Bb2 c3 Qc1 c2 Qa5 Nd5 Qc3 Na6 Qd1 c1B Nc2 Rb8 a8Q Nc5 Ne2 Na4 Na3 Bf5 Nc4 Rh7 Rg1 h1B Nd4 h2 Nc6 Rf7 Ba1 Bca3 Bd3 Bae7 Bb1 Rh7 Kf1 f2 d3 Bf3 Qa6 h1B Nd6 B3e4 Ke2 f1N Kf2 f3 Re2 Ng3 Ne8 Nh5 Rf1 Rf7 Kg1 Ndf4 Bb2 Bd5 g5+ Kh7 g6+ Kh6 g7 f2+ Kh2 Ba2 g8Q Bhd5 Qg2 Bab3 Rfe1 f1N+ Kg1 Ne3 Qf2 Neg2 Bc1 Rh7 Bd2 Bf7 Re4 Bbd5 R1e2 Ne1 Rd4 Rg7+ Kh2 Rg2+ Kh1 Qc7 d8B Qd7 Ba5 Qd8 Bc1 Rh2+ Kg1 Bce6 Ba3 Bd7 Bd6 Ne6 Bg3 Nef4 Qf1 Rf2 Bh4 Rh2 Ra2 Rb2 Qf2 Rb4 Rd2 Rb2 Re2
q1bQ3b/r5Q1/1N1B4/p2NnR1B/n3k3/nK1nN2N/Pbr1R1Q1/3n1nb1 b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 e4 Kd7 d4 Kc6 Kd2 f5 Kc3 a5 h4 g5 h5 b5 h6 g3 h7 g2 e5 Kd5 e6 f3 c6 f2 c7 b4+ Kc2 f4 e7 b3+ Kc3 b2 e8N f3 Rh3 g4 Rh5+ Ke4 d5 g3 d6 Nd7 Rg5 Ne5 d7 Bg7 Ne2 g1B Rf5 g2 Rf7 Ra7 Na3 b1N+ Kc2 c3 Rf5 Ne7 Bf4 Nd5 Nc4 Nb6 Qd2 Na3+ Kb3 c2 Re1 Na4 Ne3 c1B Qc2+ Nd3 Bd6 Bcb2 Nf4 Bgc3 Be2 f1N Bd1 f2 Re2 Rg8 Qd2 Bh8 Nh3 Rg7 Qc2 Re7 Qd2 Re5 Qc2 Rc5 Qd2 Rc2 Nf6+ Kd4 Nfd5 Ke4 Qe1 Qg8 d8Q Qe8 Qc3 Qc6 Qg7 Qa8 Ng4+ Ne3 Qdg5 Ba6 c8N f1N Ncb6 Bc8 Qd8 Bh2 Qgg8 g1N Qgg5 Nf3 Qg6 Bhc3 h8Q Bg1 Qhg7 Nfe5 Rg2 Ne3c4 Nge3 Bd4 Bh5 Bdc3 Ng4 Nce3 Rgf2 Nd1 Nge3 Nd7 Qgg5 Bf6 Re2 N7e5 Qge7 Bh8 Qeg7 Bf2 Qg3 Bg1 Qg2+
K2B1r2/1Br1rp1b/6Q1/Rn1BrQ2/1b1BbQbN/1r4P1/R4n2/q1N2kr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 b4 d5+ Kf3 Ke5 e4 h5 c4 h3 g3 a4 b6 h4 c5 a3 b5 a2 c6 d3 c7 Kd4 b7 d2 e5 h2 b6 h3 e6 Nf6 e7 Ra3+ Nc3 Bg4+ Kf2 f3 e8Q Nc6 b8B Na7 c8B Bb4 b7 Rf8 Be2 Ne4+ Kf1 Ke3 Ba6 d4 Be6 d3 Qc6 f2 Qc8 Nb5 Bc7 Qd4 b8Q Rb3 Qc2 Qa7 Ba3 d1B Nf3 d2 Bd5 Bf5 Bab7 Bh7 Nh4 Bg4 Rg1 h1R Bb2 h2 Kg2 d1R Ne2 f1R Nc1 Rf5 Bd8 Re5 Qf5 Nf2 Qc6 Qa6 Qcg6 Re1 Bd4+ Kd2 Qc7 Re7 Qb8 R1e5 Re1 Qa3 Re2+ Kd1 Qbd6 Re1 Rb2 Rc7 Rc2 Ree7 Qdf4 R1e5 Rc5 Na7 Ra5 Ke1 Rb1 a1R Rb2 Nb5 Ra2 Qb2 Qd3 Bf5 Kf3 Be4+ Ke3 h1B Qgf5 Nc3 Qa6 Bhf3 Qag6 Qb1 Bc5 Kf1 Kd4 Bg4 Kc4 Na4 Kb5 Nc3+ Ka6 Nb5 Bd4 Qb2 Kb6 Rb1 Ka6 Qa1 Kb6 Na3 Ka7 Nb5+ Ka8 Kg1 Nd3 Re1 Nf3+ Kg2 Nc1 Rg1 Nh4+ Kf1 Rb2 Bc5 Rc2 Bb4 Rca2
r5kn/1Brb4/1NN5/nn4bQ/1nb1pB1q/Qr4R1/3BNPbr/1NRK4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c4 Kf7 b4 e5 g4 h5 g5 a5 c5 d5 b6 d3 c6 d2+ Ke2 h3 c7 a4 b7 h4 b5 d4 b6 a3 Ra2 d3+ Ke3 h2 Ra1 a2 Qe1 d1N+ Kd2 h3 Qe3 Bd7 c8Q Ne7 g6+ Kg8 g7 Nc3 Qec5 e3+ Ke1 e4 Qa5 e2 Qa3 Nb5 Qac3 Nbc6 b8N Na5 b7 Ng6 Qb2 Qh4 Qa3 Rh7 Na6 Nh8 Qc6 Be7 b8B Bg5 Bbf4 Rb8 Kd2 e1N Qh6 Nc2 Nc7 Nb4 Kd1 d2 Ne2 Rb6 Rg1 h1B Qg6 h2 Rg3 Bg2 Na8 h1R Qh5 Rb7 Nb6 Rh2 Nec3 Rc7 Bd3 Rh6 Ne2 Rf6 Bc4+ Rf7 Bd5 Rc3 Bc6 Rb3 Nbc3 Re7 Rb1 a1R Bb7 Ra2 Ra1 Re8 Nb1 Ra8 Qh6 Rc2 Qh7+ Kf7 g8N+ Kf8 Ne7 Rc7 Qh5 Kg7 Ng1 Kf8 Nc6 Kg8 Ke2 d1B+ Ke1 Rf8 Ne2 Ra8 Bce3 Bc2 Bd2 Bd3 Kd1 Bc4 Ra2 Rd3 Rc2 Rb3 Rc1
2K3n1/2RB1r1p/2q2PQ1/1Rb1N1nb/5NBR/krr2n2/1Q1b1b1n/B1R3r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 e5 b4 Ke7 f4 Kd6 c4 h3 g5 d3 Kc3 h2 f5 a4 g6 a3 f6 d2 b6 a2 b7 e3 b5 Kc5 g7 d5 b6 e2 Kd3 Kb4 c5 e1B c6 e4+ Kd4 e3 Ke5 d4 c7 d3 Nf3 e2 Nh4 Bg4 c8B Bf2 Bb2 e1B Qc1 d1N Bd7 d2 Ba6 B8c5 Na3 Qc7+ Kd5 Qc6+ Ke5 Bh5 Be2 Ra7 Bd4 Ne3 Beg4 d1N Ng6 Nc3 Nf4 Ne4 Nc4 Ng5 Qb2+ Ka4 Bc3 Nf1 Rc1 a1R Kf5 Rb1 Ne5 Bd2 Bd4 Na6 b8R Nb4 b7 Nd3 Rc8 Ne1 b8R Nef3 Rb5 Rb7 Rc7 Ra7 Qc2+ Rb3 Ba1 Ka3 Qb2+ Ka4 Rg1 h1R Rg2 Rg1 Rh2 Ra8 Rh1 Rf8 Rh3 Rf7 Rh4 N1h2 Rf1 Nh3 Rc1 Qe4+ Ke6 Qc2 Kd5 Nhg5 Kc6 Rc3 Kb7 Qe4+ Kc8 Qc6 Qb1 Ka3 Qc2 Nh6+ g8Q Rb3 Qd8 Re8 Qf5 Ng8 Qg6 Re6 Qe8 Rd6 Qe7 Rdd3 Qd6 Rbc3 Qd4 Rb3 Qc3 Re3 Qcc2 Rec3 Qb2+
1qb1n2N/4KRR1/nN1QN2q/3r2nB/2n2N1Q/1kq1pnb1/2bnP3/B4R2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Bg2 fxg4 Bf1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qb6 Bb2 Qa5 Bc1 Qd8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 a4 d5+ Kf4 h4 c4 d3 f3 g2 c5 h3 a5 h2 a6 d2 g6 g3 Kg5 b3 c6 b2 a7 b4 a8R d4 g7 Kd5 f4 Kc4 c7 e5+ Kg6 d3 Kf7 b3 f5 e4 f6 e3 R8a2 Na6 Ra3 Bd6 R1a2 Rh5 Nf3 g1N Nh4 g2 Ng6 Rd5 Nc3 b1N Nh8 Nf3 Bb2 g1N Ba1 b2 Bg2 Nh3 Rf1 h1Q Qe1 d1Q Qh4+ Bf4 Rb3 d2 Rb7 Qc1 Ra5 Rd6 Rf5 d1B Nd5 Nbd2 Rg5 b1N Rg4 Ne7 g8Q Na3 Rg7 Nf5 Qf8 Bc2 Ra7 Rd7+ Ke6 Qb2 f7 Kb3 Qd6 Bg3 f8N Nac4 Nf4 Qc3 Rf7 Qh2 Bh1 Qg5 Rg7 Rd8+ Kf7 Qh6 N8e6 Rd7+ Ke8 Nhg5 Rf7 Ng1 Bf3 Ng7+ Kf8 Rd8+ Ke7 Ne8 Bh5 N1f3 Rg7 Bb7 c8N Rd7+ Kf8 Rd8 Nb6 Bc8 Rf7 Rd7 Qc6 Rd5 Ke7 Bf2 Nfg6 Qb8 Ngf4 Bg3 Qd6
1BRRb3/2n1Qb1N/R7/q1pq1Bnn/3B2n1/n2q2r1/1QP5/K1bnNkB1 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 b5 Na3 g5 Nb1 Ra6 Qf3 Rg6 Qe2 fxg4 Qd1 g3 Ne2 g4 Ng1 Rg5 hxg5 Bb7 Ba3 Ba6 Bc1 Bc8 f4 Kd7 d4 Ke6 Kd2 Kf5 a4 e5 d5 c5 a5 h5 a6 h4 g6 h3 g7 b3 Kc3 b4+ Kb2 e3 a7 Ke4 a8Q g2 f5 h2 f6 e2 f7 e1N Bh6 g3 Qb7 Nf3 Bf4 Rh3 Be3 Nh6 g8R Ng5 Be2 Be6 Qb5 Na6 d6 Nc7 d7 Ng4 Bf2 Bh6 f8B Bf7 Be1 Ke3 Ra4 e4 Nf3 g1Q Ra1 g2 Ra6 Rg3 Ra2 Qf1 Qa4 g1N Ra1 N1h3 Bd6 Nf4 Qb5 Nh5 Ra6 Qg2 Bc3 Kf2 Ne1 e3 Nd2 Qd5 Bd3 e2 Bf5 Qd3 Rg1 h1B Ka1 Bc6 Ndf3 Qa8 d8B Bce8 Rg2+ Kf1 Bdf6 Qad5 Bfd4 b2+ Kb1 Ne4 Bg1 Bc1 Bcd4 Ng5 Rh2 Bc6 Rd8 Bce8 Ng2+ e1Q Rh1 Nf4 Rh8 Nh5 B6e5 Nh6 Qd2 Ng4 Qe3 Qc3 Nge1 Qa3 Qc4 Qc3 Ka2 b1N Qb3 Na3 Qe4 Qcd2 Ka1 Q2c3+ Qb2 b3 Bd6 Qa5 Qe7 Nb1+ Qa3 Nc3 Qa2 Nd1 Rc8 Nce6 Bb8 Nc7 Qa3 Bc6 Rhd8 b2+ Kb1 Bb5 Qb3 Ba4 Ka2 b1N Ka1 Na3 Qb2 Nh7 Ng5 Bae8 Ne6 Ng5 Nf8 Q5e4 Nh7 Qa8 Bde3 Qad5 Bd4
1Bb3NK/Qp4R1/QP3RQ1/nbbr1r2/4bq2/bqq3q1/1kBq1RN1/6Q1 b - - 0 1 illegal: No proof kernel
n1b4q/1q1RN2q/B1n1n1r1/R1p5/K1P1qNkQ/B1QnbN2/1BB1nb2/8 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 b5 Na3 g5 Nb1 Ra6 Qf3 Rg6 Qe2 fxg4 Qd1 g3 Ne2 g4 Ng1 Rg5 hxg5 Bb7 Ba3 Ba6 Bc1 Bc8 c4 Kf7 d4 Ke6 Kd2 Kf5 Kc2 c5 Kb3 e5 a4 h5 f4 h4 a5 h3 d5 e3 g6 g2 g7 e4 a6 h2 d6 g3 a7 e2 a8B e1N d7 e3 Ra4 e2 Nf3 g1N Nc3 g2 Nd4+ Kg4 f5 Ne7 g8N Nef3 f6 e1N f7 Rh6 Bb7 Nbc6 Nde2 Nfd4+ Kb2 b3 Ka3 b2 Ra8 b1Q Ba6 b4+ Ka4 b3 Qc2 b2 Nd5 Nd3 Qd2 Rg6 Ndf4 Bh6 f8B Nd5 Qc3 Nc7 Ne7 Nde6 Nd4 Ne2 Nf3 g1B Bg7 Qh8 d8Q Bf2 Ra7 Na8 Rd7 Bg5 Bg2 Qh7 Rd1 h1Q Ra7 Ne1 Rdd7 Qe4 Bd4 b1Q Ba3 Qb7 Bf1 Nc1 Bd3 Ne2 Bc2 Nd3 Qh8 Bf6 Qa1 Q7h4 Bb5 Qh6 Ra5 Qf8 Bc3 B6d4 Ba6 Bde3 Qe1 Qfh6 Bcb2 Qg7 Qh7 Qh8 Qd2 Qh6 Qc3 Q6g7 Qh2 Qgh7 Qh4+
1b1rqRrr/RN1B3n/4nQ1r/4rk2/2QBN1np/K7/1N1r1rQP/n2Q4 b - - 0 1 illegal: No possible last move, all moves rejected
2Rr2bk/1r1QQ2b/1b5q/1bBb2Q1/2NK2B1/1p1bnq2/qPNR1q2/Q5N1 b - - 0 1 legal: proof: f4 b5 h4 g5 d4 gxh4 f5 c5 f6 cxd4 a3 Na6 Bg5 Nb4 Be3 exf6 Bc1 f5 Nh3 f4 Ng1 Na2 a4 b4 Kd2 Nc3 Ke1 Nb5 axb5 Qb6 Ra4 Qf6 Ra1 Qd8 Kd2 d5 Kd3 f5 e4 Kf7 g4 Kg7 c4 a5 b6 h5 g5 a4 g6 b3 e5 a3 c5 a2 e6 f3 c6 f4 b7 f2 b8Q h3 e7 f3 e8Q h2 c7 h4 Qa7 h3 Qe5+ Nf6 Qa6 Ra7 Qb5 Be6 c8Q Qb6 Qe4 Ng4 Qa8 Bg8 Qee8 Bc5 Qac8 Rb7 Qce6 Ne3 Bg2 f1B+ Ne2 f2 Rg1 h1Q Q6c6 h2 Bd2 Qa7 Bh3 Bb6 Qcc8 Qf3 Rg4 h1B Na3 Bhg2 Rc1 a1Q Re4 Qa2 Nc4 Qh5 Rc2 Qh6 Bb4 Bh1 Bg4 Bf3 Kd2 d3 Kc3 d2 Qa1 d1Q Ng1 Bd3 Bc5 f1B Kd4 Bh1 Re6 Qf3 Rd2 Bfe2 Rc6 Bf1 Ke5 d4 Qf5 Bhg2 Qg5 Bfe2 Qa4 Bh1 Rc8 Bf1 Na3 Bb5 Nc4 d3 Kd4 Be2 Rd1 d2 Qa3 Bd3 Qd7+ Bf7 Qb4 Rd8 Qa3 Kg8 g7 Kh7 g8N Kh8 Nf6 Bg8 Nd5 Bdh7 Rb1 d1B Nb4 Be2 Nc2 Bed3 Re1 Qd1 Rf1 Bhd5 Rf2 Qf3 Re2 Qb8 Qa7 Qbg3 Rd2 Qgf2 Qde7 Rb8 Qac7 Rb7 Qcd7
3q1Nkn/q3R1bB/R3b3/2Qb2q1/1r1Qp1NP/2nQ1n2/r1QB1Brp/7K b - - 0 1 illegal: No proof kernel
1R2RBr1/n2Kn3/bk1NNQp1/3b2p1/1P2q3/q3rBR1/1Rn2bq1/1Q1r2N1 b - - 0 1 legal: proof: f4 b5 g4 e5 a4 exf4 axb5 c5 d4 cxd4 g5 h6 Be3 hxg5 Bd2 Na6 Bc1 Nb8 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kf3 f5 b4 a5 e4 d3 h4 d2 c4 g6 c5 a4 h5 d4 h6 a3 e5 a2 c6 d3 e6 Bc5 e7 Qd4 e8R Ba6 h7 Ne7 Bb2 Rg8 h8Q Kb6 c7 Nbc6 Bg2 Na7 Na3 Qe5 Qe1 d1R Rh3 d2 Nc2 Bf2 Rb1 a1N Nd4 Nc2 Ne6 Rd8 Qf6 Rd3+ Qe3+ Qd4 Rg3 Ra3 Bc3 Bb7+ Qe4 Bd5 Rb2 Qe5 Ke2 f3+ Kd3 f4 c8N+ Kb7 Nd6+ Kb6 Qef5 Qe1 Rb3 Qe5 Bb2 Qe4+ Kc3 Be3 Bh1 f2 Bf3 f1Q Ba1 Qg2 Bb2 Bc6 Ba1 Bd4+ Kc4 Ba8 Rb2 Re3 Bg4 f3 Bh5 f2 Bf3 Qb7 Qe4 f1B+ Qd3 Nec6 Kd5 Qa6 Qb3 Qa3 Qa2 Be2 Qb1 Bd3 Nf5 Bc4+ Kd6 Ne7 Kd7 Bb7 Nd6 Bcd5 Rb3 Bc5 Bc3 Ba6 Rb2 Rde1 Bd4 d1Q Be5 Qdd3 Bd4 Nac8 Be5 Rd1 Bc3 Ka7 b6+ Kb8 b7 Ka7 b8R Qe4 Nc7 Red3 Qf4 Bf2 Bg7 Rc3 Ne6 Re3 Nb7 Kb6 Bf8 Na7 Qf7 Kb5 Qf6 Kb6 Nd6+
8/2BnR1Qk/1rbp2Rb/Rq4Qr/RPB2nN1/1npq2b1/KB3q2/1N4r1 b - - 0 1 illegal: No possible last move, all moves rejected
6nR/KBRNpB1q/P2Qp1qb/n1n5/1N1Br3/3rN1Qr/3bb2B/kq6 b - - 0 1 illegal: No possible last move, all moves rejected
n2bb1BR/q2p1q1Q/3bq1n1/2R5/NQ1Qn3/P2N2R1/k4pKR/r1Br1r2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 e4 Ke6 c4 b5 h4 f5 h6 g5 h7 g4 e5 g3+ Kf3 b3 c5 Kd5 h5 g2 e6 d3 c6 Kc4 c7 b4 e7 b2 e8R b3 h6 Qf6 Qe1 Qe6 Qe5 Bb7+ Kf2 f3 Be3 f4 Ba7 Bd5 Nh3 g1B+ Ke1 f2+ Kd2 f3 Ke3 Bd6 Bc5 Ne7 c8Q Rf8 h8Q Ng6 h7 Na6 Qb7 Nc7 Bg2 f1Q+ Nf2 d2 Rc8 d1R Nc3 b1Q Ba3 b2 Qb8 Qbf5 Rh2 b1N Qb2 Qff7 Na4 Nc3 Qg7 Ra6 h8R Ne4 Qh7 Ra7 Qb7 Ra8 Bc1 Ra6 Nc5 Na8 Qf4 Kc3 Qb4+ Kc2 Bh1 Ra5 Qf6 Qa6 Qfd4 Qa7 Na4+ Bc4 Rb1 Ra6 Rb3 Ra5 Nb2 Kb1 Rc5 Ra6 Rg2 Bgh2 Nfd3 Bhe5 Rc2 Bf6 Rh2 Bd8 Bg2 f2 Bh3 Re8 Bf5 Rg8 Kf3 Ra4 Kg2 Ra3 Ne1 Be2 Rg3 Bh5 Ned3 Rf1 Ne5 Rd3 a3 Rdd1 Na4+ Ka2 Bh3 Rf8 Bf5 Ne7 Rg7 Qg8 Qb8 Bb6 Qb7 Rb8 Qh6 Be8 Rg3 Bd8 Nd3 Qgf7 Bh7 Ng6 Qb6 Rb7 Bg8 Rb8 Qa5 Rb1 Qh7 Ra1 Qab4
N1R1n2b/KQp2R1k/6Rq/b2rq1p1/R2P2bn/1Q5n/N3QB1r/r2B3q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 g5 e4 a5 Ke2 f5 d4 Kf7 h4 Kg6 e5 a4 h5+ Kh6 b6 a3 b5 a2 b7 c3 Kd3 g3 Kc4 f3 b6 g2 Kb5 f4 e6 c2 e7 f2 e8R f3 Qe2 Qf6 Nh3 g1N Nc3 Nd7 b8Q Ne7 b7 Bg7 Rg8 Kh7 h6 Ng6 Be3 c1B Nf4 Qe5+ Nfd5 Nf6 Qa7 Bd2 Ka6 Be6 b8Q Bg4 Qb3 Nh3 Nb6 Rd8 Qb7 Rd5 Na8 Nh4 Ka7 Ne8 Rg1 Bf6 Rg6 Be1 Bg2 f1Q Bf2 Bd2 Rh1 Qc1 Rh2 Qh1 Rf1 a1Q+ Na2 Qc3 Ra1 Qc6 Bf1 Ba5 Rg2 Bc8 Rg4 Bg7 Rf4 Bg4 Rf7 Qcd6 Qeb2 Qf8 Be2 Qfd6 Bd1 Qf8 Bg3 f2 Qe2 f1R Bf2 Rg8 Rf3 Bh8 Rf7+ Qfg7 Nc3 Rg1 Ra4 Rg2 Na2 Rh2 Rd7 Rf8 Re7 Rf6 Rf7 Ra6+ Kb8 Nd6 Be3 Rb6 Bg1 Kg8 Qbd3 Rb1 Ka7 Ra1 Rgf6 Qh7 Bf2 Bg7 Qdb3 Qg6 h7+ Kh8 Re6 Qh6 Rf4 Bf6 Rf5 Kg7 h8R Kg6 Rd8 Ne8 Rc8 Kh7 Rb6 Bg7 Rg6 Bh8 Rf7+
b1r2R2/1p1bBqPK/4qq2/bk1B1NR1/rN3Rp1/1NN2n2/1n1Q4/2nr3Q b - - 0 1 illegal: Other
b3Rr2/BQr2qQn/2b3N1/1bb2k1r/BB3B1p/QnR5/2np3P/bK2N3 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 Kf7 e4 Kg6 c4 h5 Kc2 a5 f4 d5 e5 a4 c5 h4 c6 a3 b6 d3+ Kb3 g3 Ka2 d2 c7 g2 b7 d4 e6 d3 e7 Nf6 e8Q+ Kf5 Bb2 g5 Bc1 g4 Nh3 g1R Nc3 b3+ Kb1 b2 Qda4 d1B Bd2 g3 Qb4 g2 Nb5 Ba4 Qb3 Na6 b8B Bc5 Qf8 Bb7 c8Q+ Qd7 Qg7 Nh7 Ba7 Bc6 Qb7 Raf8 Qa2 Nb4 Nd4+ Ke4 f5 Bb5 f6 Nc2 Nf4 Qf7 Be3 d2 Nf3 Kf5 Ne1 Bd4 Be2 Rf1 Bh5 g1B Ng6 Bc3 Bf4 Bc5 Bd1 Rc8 Be2 Rc7 Bd1 Rf8 Qb3 Rg1 Qb4 Rg5 Rg1 Rh5 Rg3 Nd4 Ba4 Nb3 Rd3 Be5 Rc3 a2+ Kc2 Bed4 Qa3 b1B+ Kb2 Bbe4 Rd1 Qe7 f7 a1N Rc1 Bg2 Kb1 Nc2 Re3 Ba1 Re4 Rg8 f8B Qf7 Re8 Bgf3 Be7 Rf8 Bed6 Bcd4 Bb4 Bc5 Qb6 Ba8 Qb8 Bfc6 Qb7 Ne3 Rc4 Nc2 Rc3
3RB1n1/1qRNb1Kb/1N3B2/3rR3/npP2p1B/1Bb1k3/Q7/Qbrnb2r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 Kd3 Ke6 Ke4 b5 c4 d5+ Kf4 f5 e4 b3 a4 d3 h4 b2 a5 b4 a6 g3 h5 g2 a7 d2 h6 d4 h7 d3 Nf3 g1B Ra5 Qd5 Kg5 Be7+ Kg6 Nd7 Be2 Bd4 Nc3 b1B Na4 Nc5 Nb6 Qb7 Rh5 Rb8 a8Q Na4 Rc5 Bc3 Rc7 f4 Bb2 Bd7 Qe1 Rd8 Bd1 Bc6 Bb3 d1R Qg1 d2 Qa5 Nc5 Qa2 Rc1 Rf5 d1N Rf8 Rb8 Rd8 Na4 Ba1 Be1 Bd4 Ra8 Bf2 Ra5 Bh4 Rd5 Qd4 Bd7 Qda1 Bc3 Nh2 Bc6 Ng4 Bd7 Nf6 Bc6 Kh5 g5 Kg6 g4 Nfd7 g3 Kg7 g2 Q2b2 g1B Qba3 Nf6 Q3a2 Re8 h8B Ng8 Kh7 Be1 B8f6 Bd4 Kg7 Bdc3 Kh8 Kf7 e6+ Kg6 e5 Kf5 Kh7 Ke4 Kg7 Bd6 e7 Ke3 e6 Rf8 e8B Be7 Be5 Rf5 Bef6 Rh5 Bg3 Rh1 Bh4 Bd6 e7 Bc5 Bg6 Bd6 e8R+ Be7 Ne5 Bd7 Bf7 Bdf5 Ned7 Bfe4 Bh5 Bd6 Re5 Be7 Rf5 Bec2 Be8 Bd3 Rg5 Bh7 Re5+
1qQb3N/Q1r1b1b1/1R1r1n1n/Nk2B1KP/2bp1BB1/4R2Q/3rp3/2Qb1n2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 d5 c4 Kd7 f4 g5 b4 e5 b6 Kc6 c5 g3 f5 g4 h5 e3 f6 d3+ Ke1 a4 b7 e4 f7 e2 Kd2 e1N Ke3 d2 Kf4 a3 Qc2 d1B Qa2 g2 Ne2 g1R Qb2 e3 Bh3 a2 Nd2 g3 Nc4 g2 Rb1 a1B Bg4 Nc2 Na5+ Kb5 c6 Be7 f8Q Rh6 c7 Ra7 Qf5 Nd7 b8B Rd6 Rh3 Ba6 c8Q Ndf6 Kg5 Rc7 Nf4 e2 Ng6 Nh6 Bf4 Ne3 Nh8 Nf1 Re3 Rh1 Qc1 g1B Be5 Bf2 Qf3 Rg1 Qh3 Rg3 Re4 Rd3 Re3 Rd2 Bf4 Be5 Rb2 d4 Rb1 Ka4 b5 Bg3 b6 Bc4 b7 Qe8 Ba7 Qb5 b8Q Bh4+ Kg6 Qb7 Bc5 Qb6 Qa7 Qb8 Rb6 Ne4+ Qe6 Bg7 Be5 Nf6 Qc8 Rdc6 Bcd6 Bg5 Ra6 Kb5 Bf4 Rb6 Bde5 Rd6 Rb6+ Ka4 Qf8 Ne8+ Qf6 Bd8 Qe6 Bge7 Qh1 Nf6 Qh3 Bd3+ Kg5 Bc4 Rc6 Kb4 Qc8 Kb5 Rb6+
Q1n4B/8/K2Qbr2/1nN1b1p1/1N1Bn2P/Rp1b1Q1b/q3rb2/1BrR1Qk1 b - - 0 1 illegal: No possible last move, all moves rejected
1Br2r2/Q2n1N1b/1bk3r1/2NPpK2/1n1b4/nb3RN1/B1BBp1b1/q5RQ b - - 0 1 illegal: No possible last move, all moves rejected
8/bBB2K2/r1b1Q1pP/qNB1r3/rbN5/2Qnn1p1/k1RQ2Qn/1rr2R2 b - - 0 1 illegal: No possible last move, all moves rejected
B3k3/r1B2nn1/bqn1nPR1/2br4/p6R/1R1QrpN1/NnN4Q/4bNK1 b - - 0 1 illegal: No proof kernel
1R1B1n2/1nr4Q/K2P2bQ/1Rr2p2/B4nN1/Q1qQ2p1/1kb3N1/n1b1Rr1n b - - 0 1 illegal: No possible last move
1r1nRb2/2N4k/2NP1p1n/1BrR1bb1/1Kn5/Q1Bp2Qb/1B1q3N/B3b2r b - - 0 1 illegal: No proof kernel
k3Nbb1/B1KN1n2/2Bp2br/1Rr1nNp1/q2n1r2/1nQ3n1/3N3P/RBQ5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 g5 Kc4 f5 Kd5 d6 e4 Kd7 b4 Kc7 c4 Kb7 b6 g3 c5 d3 e5 d2 b5 f3 e6 f2 e7 g2 e8B a4 Qe2 d1B Qd2 a3 Nf3 g1N Nd4 f4 Nf5 a2 Bd3 f1R Qc3 f3 Be3 f2 Nd2 Bh5 Bb1 Ra5 c6+ Ka8 c7 Nd7 Kc6 Nf3 Rg1 Ba6 Rg3 Qb8 c8Q Nh6 Rg4 Nf7 Rb4 Bg6 Rb3 Nc5 Bd4 Rh6 b7+ Ka7 Rb2 Qa8 Kc7 N3e5 b8N Bb7 Nd7 Bd5 Nf6 Bb3 Qd7 Qe4 b6+ Ka8 Be3 Qa4 Qb5 Be6 Qbc4 Nb3 Qc1 Nd4 b7+ Ka7 b8N Ka8 Rb7 Rc5+ Bc6 Bd5 Q4c3 Bb3 Be4 Be6 Rab1 a1N Ne8 Nab3 Bd3 Rd1 Ra1 f1N Bc2 Ng3 Bb1 Rf1 Nd7 Rf4 Nfg7 Nh8 Ra2 Ra5 Kb6 Bg8 Nf5 Nhf7 Ra1 Nc2 Kc7 Rd5 Bc5 Ncd4 Ba7 Rc5 Rb5+
1nRn2r1/1br1bk2/2p2BQ1/r3pB1b/2N2q1P/4n1bB/b1Q1B1N1/4NRK1 b - - 0 1 illegal: No proof kernel
7b/Q2BK3/1p3Q1q/rpn1Bb2/2b1rnR1/BPNn2R1/4nQ2/1Nrk1B1n b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 h4 exf4 Qb3 gxh4 Qc4 a6 Qb5+ axb5 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 a4 Kb3 e4 Kc2 d4 f5 g5 h5 g6 b6 b3 f3 d6 f2 a5 f4 a6 h3 d5 c4 g7 f3 d7 c3 Ke6 h2 e5 h4 d6 h3 a7 Na6 Ra2+ Kd1 Na3 c2 Nb1 Nc5+ Kf7 Rh4 e6 Re4 e7 Nf6 g8Q Nh5 e8B Qh4 d8B Bg7 d7 Nf4 Ba3 c1N Bc7 Bh8 d8Q+ N1d3 Qg3 Bf5 Ne2 Qh6 Rg1 h1N Bd7 h2 Qgh4 Ng3 Qdf6 h1N Be5 Ke1 Nec3 Nge2 Nd5 Kd1 Rg3 Nd4 Ke7 Nde2 Bh3 f1R Ndc3+ Ke1 Rg4+ f2 Qg3 Rg1 Qe3 f1B Rb2 Rb8 a8Q Rb7 Rd2 Ra7 Qb7 Ra6 Qa7 Ra5 Qf3 Nd4 Rdg2 Nde2 Na4 Kd1 R2g3 Bg2 Qf2 Bf3 Rg7 Bh5 R7g5 Bf7 R5g4 Bc4 Bg2 Kc2 Bh3 Rc1 Bf1 Kd1 Nac3+
Q4NR1/nN2pR1r/Bn4K1/3bbP1r/1q6/Q3rbQ1/1Bnrp2Q/Rk1r4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 h5 c5 a4 c6 h3 f5 Ke5 g5 e3+ Kd3 h2 g6 h4 c7 h3 b6 e2 b7 a3 b5 a2 b6 Rh5 g7 Nc6 b8Q Bb7 c8R+ Qd6 Na3 Nf6 g8Q Bg7 Qc2 Nd7 Nb5 Ra3+ Qc3 Na7 Qa8 Qb4 Bb2 Rh7 Kd2 Ke4 Nf3 d3 Nfd4 Be5 Ne6 d4 Qg3 Bd5 b7 Nb6 b8Q Rh5 Rg1 h1B Rg8 h2 Nf8 Bf3 Bg2 h1R Rg7 R1h4 Rf7 Rh7 Bh1 R4h5 Qh2 Rb3 Rg8 Ra3 Qd6 Rb3 Qg6 Ra3 Qgg3 Rb3 Ke1 d2+ Kf2 d1R Qc5 Kd3 Nd6 Rc3 Nb7 Kc2 Qa5 d3 Ke3 Rd2 Qa3 Rc6 Bg2 Re6 Bh1 Bd4+ Kf4 Re3 Rg1 a1N Re1 Rh4+ Kg5 R4h5+ Kg6 Be5 Rg1 Nb3 Ra1 Nd4 Ra2 Kb1 Bg2 Nc2 Bh1 Rd1 Bg2 d2 Bh1 Rg1 Bg2 d1R Bh1 Rd2 Bg2 Bg4 Be4 Rc1 Bd3 Bgf3 Ba6 Rcd1 Ra1+
1r1bqR1n/1r1P2N1/1b1bnQ1Q/r3R1p1/BBp1n1N1/1k3bQ1/6RQ/2K4b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 d4 g5 Kd2 c5 h4 a5 d5 f5 h5 g3 h6 f3 h7 f4 b6 g2 b5 a4 b7 c3+ Kc2 c4 b6 Kc5 d6 Kb4 d7 a3 e5 a2 e6 f2 e7 f3 e8Q Bd6 Qe3 Qe8 Be2 f1N Nh3 g1B Qdd4 f2 Nd2 Na6 b8R Ng3 b7 f1B Nf2 Bg2 Rh2 Nc7 Bd1 Ne7 Nf1 Ng6 Ng4 Ra5 Qf6 Ne6 Bd2 Bh1 Rg2 Ne4 Qg3 Bb6 Nfe3 Rf8 Rc1 a1B Nf5 Nh8 Ng7 Ka4 Ra8 Ka3 b8Q Bb7 Kb1 Bb2 Rc2 Kb3 Re2 Ba1 Kc1 Bf3 Ra2+ c2 Bb4 Bc6 Qh6 Bf6 Rg2 Bfd8 Qf6 Ra7 Ra5 Rb7 Re5 Qe7 Raa5 Nd2 Qgf4 Bfd5 Qf7 Bd6c7 Ree2 Ng6 Bc5 Kc3 Rg1 Bh1 h8Q Bcf3 Qh6 Nh8 Qfh2 Bg3 Re4 Bdc7 Rf4 Ne4 Rg2 Rc8 Qfg6 Bd8 Rf8 Qe8 Qf6+ Be5 Qc7 Ra8 Bd6 Rab8 Rc5 Kb4 Rd5+ Ka4 Bb4 Bf4+ Kb2 Bg3 Be2 c1R Rc5 Rc3 Bd1+ Rb3+ Kc2 Rd3 Rf5 Rd5 Qd6 Ra5 Rc5 Bf2 Qdg3 Bg1 Re5 Bgc5 Bd2 Ka3 Kc1 Bd6 Ba4 Ka2 Bb5 Ka3 Bb4+ Kb3 Ba4+
1R3Br1/N1p1n3/Kb1qn3/5b2/Q1PBQ2b/1B1B4/2p2nb1/Qb1rkrNR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 Qa4 exf4 Qc2 d4 Qc3 dxc3 d4 Ke7 g4 Kd6 e4 f5 Ke2 h5 Kd3 a5 b4 f3 d5 Ke5 d6 f2 d7 h3 g5 f4 b6 h2 b5 h4 g6 h3 g7 f3 b7 a4 b6 a3 Bb2 Kf4 e5 Kg3 e6 a2 e7 Nc6 e8B Bc5 b8Q Nd4 b7 Bb6 Na3 Ne7 Qa7 Rg8 b8Q Ne6 Rb1 a1B Qbb7 Rb8 Be2 f1B Nb5 Kf2 Qa4 Bg2 Na7 Ra8 Bd1 Ke1 Bg6 f2 Qba6 Qf8 d8B f1R Ba3 Bb2 Bb3+ Bc1 Rb2 Bg5 Qb7 Bh4 Qe4+ Be3 Bc5 Qf4 Bd4 Qd6 Nb5 Ra5 Na7 Rd5 Bh7 Ng5 Bg6 Bf5 Bh7 Ne6 Bg6 Re8 g8Q Rf8 Qh8 Re8 Kc2 Rg8 Bg7 Rd1 Bf8 Nc8 Bf6 Ne7 Qd3 Bc5 Bd4 Bb6 Qe5+ Bge4 Qea5 Bg2 Qa1 Bge4 Q5a4 Bg2 Ba2 Bge4 Kb3 Bg2 Qc2 Bge4 Qg2 Bb1 Bh7 c2 Qb7 Bg4 Bd3 Bf5 Qe4+ Kd2 Qf4+ Ke1 Kc3 Bc5 Rb8 Bb6 Bb3 Nc5 Kb4 Ne6+ Kb5 Rg4 Ne2 Rg8 Rg1 h1B Qe4 h2 Ka6 Bg2 Qd5 h1N Qe4 Nf2 Rh1 Rg6 Bf6 Rg4 Bd4 Rg8 Ng1+
Q5rn/1PNQ1b2/5Bbr/N2N2rq/b3B3/R1p1R1b1/1N1B3p/K1bn2nk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 c5 g6 h5 g7 f5 d3 a5 Kd2 h3 Kc2 h2 Kb2 c3+ Ka2 f3 b6 h4 b5 h3 b7 f2 b6 a4 Ba3 Kf4 d4 Kg3 e5 c2 d5 c1B e6 f4 e7 c4 e8Q c3 d6 f3 d7 Nh6 g8N Qh4 d8N Bf5 Ne6 Qh5 Qd3 Bg6 Qdd7 Nf7 Qee7 Rh6 Bb4 a3 Qa4 Nc6 b8B+ Nce5 b7 Nh8 Ba6 Kg2 Nf6 f1B Nd5 f2 Bd3 Nf3 Ne2 Ng1 Qed7 Bd6 N2d4 Bg3 Bf4 Rg8 Be7 Be2 Nec7 f1B Qa5 Bd1 Bf6 Ba4 Nc6 Bf7 Bh7 Bd3 Bd2 Bdg6 Qa7 Nf3 Rf1 h1N Qa8 h2 Na5 Ng1 Rf3 Nf2 Re3 Kh1 Be1 Nd1 Nd2 Bf5 Ndc4 Rg5 Nb2 B5g6 Bd2 Bc6 Kb3 a2 Ka3 Bb5 Rb1 a1R+ Kb3 Ra4 Ra1 Bc6 Ra3 Rag4 Ka2 Ba4 Ka1 Rc4 Ne8 Rc8 Nec7 Rg8 Qa6 Be8 Qa8 Bgf7 Bc2 Bg6 Bd3 Bef7 Be4+
nR1r1rnq/1pb4P/r3QR2/1KB2n2/B1N3Q1/1N1b1n2/p1B1knR1/b6R b - - 0 1 illegal: No proof kernel
3Q2K1/RpPn2nB/8/BQ1p4/rR1rrNbr/5Q2/kn1N1bqb/R2Q3r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 h5 Kc4 e5 Kd5 d3 c4 h3 a4 h2 f4 d2 g4 b3 g5 e4 f6 h4 a5 h3 f5 e3 c5 b2 a6 e2 a7 e1B c6 Bf2 c7 Bd6 Be2 Rh4 Bd3 Nh6 Ne2 Re4 Nf4 Qg8 Rf1 h1R g6+ Ke8+ f7+ Ke7 g7 h2 Ra4 Be5 Rd4 d6 Rb4 Nd7 Na3 b1R Nc4 Ra1 Bb2 Kf6 Bc3 Ra4 Re1 Rb8 a8R Ke7 Ra7 Ra8 Qb1 d1N Nd2 Nb2 Qc2 Rb8 Ra1 Rd1 Qb3 h1R Qc4 Rh4 Qb5 Rdh1 Bb1 Qh7 g8Q Qg6 Bd3 Qg2 Qg4 Kf6 Qd1 Ke7 Ne6 Bh2 Nf4 Ra8 Ra5 Ra6 Bb1 Rc6 Ra7 Rcc4 Bd3 Kf8 Bc2 Red4+ Ke6 d5 Nd3 Kg7 f6+ Kg6 f8Q Nf5 f7 Ng7+ Ke7 Kf5 Nf4+ Ke5 Bg6 Bhg1 Bh7 Bh2 Rb3 Rcb4 Qd8 Rc4 Bb4 Re4 Ba5 Kd4+ Kd6 Rcb4 f8Q Rc4 Rb4 Kc3 Qf5 Rcd4 Qff6 Ne5 Ke7 Bg4 Kf8 Nd7+ Kg8 Nc4 Nb3 Kb2 Rc1 Ka3 Nd2 Nb2 Qf5 Ka2 Qh5 Bh3 Qhf3 Bg4 Ra1#
Nq3Nr1/7K/N2Q1R2/q1R1bQ2/1rQrNr1B/1r2np1B/1pb1b1Pn/1k6 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 Kc4 d4 h5 a5 f5+ Ke5 b5 a6 c5 a7 f3 d6 h3 d7 b3 d5 h2 d6 b2 Ra6 f4 Kf5 h4 Kg6 b4 Bd2 b3 Be1 h3 Bf2 Nf6 Qe1 Rh4 Nd2+ Kc3 e4 Kc2 e5 b1Q e6 c4 e7 c3 e8N Nc6 Bc4 Ne7+ Kf7 Ng4 Bd4 f2 Ne2 f1B Qg3 f3 Rg1 h1R Nc7 h2 Qf2 Nf5 Kg6 Bg7 Bf6 Nfe3 Nf4 Be2 Ne4 b2 Bg5 Qa2 Be6 Qa5 Qf1 Be5 Rb6 Bb7 Na6 Qb8 d8Q Bc6 d7 Ba4 Qg8 Bb3 Qf2 Ba4 Rb1 Rd1 d8Q h1R Qd6 Nh2 Bh3 Rd4 Ne6 Rf4 Kh7 Rb4 Bf6 Rd1 Nf8 Rdd4 Bh4 Rb3 Ra1 Rbb4 Ra3 Kb1 Qc4 c2 Rc3 c1R Qg3 Re1 Qg5 Bc2 Qf5 Red1 Rc6 R1d3 Rc5 Qbb5 Ra3 Rdb3 Ra2 Rd8 a8N Qb8 Ra4 Qab6 Raa5 Rc8 Rab5 Qa5 Rb7 Rd8 Rf7 Re8 Rf6 Rd8 Ne6 Rg8 Nf8
n1n1r1q1/NBnB2n1/k2q4/2b3qn/1B2r3/1B2pRQQ/2bNpP2/1NK4R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 g4 Kd7 c4 Kc7 b4 Kb7 c5 h5 g5 e5 b6 a5 b5 h3 g6 d3 g7 h4 Qf3 h2 Qe3 a4 Qe2 e3+ Kd1 a3 Qc2 e2+ Kd2 h3 Qb2 a2 Qc2 e4 Bb2 d4 Qb3 e3+ Kc1 d2+ Kc2 d1N Kc1 d3 Nc3 d2+ Kc2 Ne7 g8B Rh4 Bc4 Nd7 Rb1 a1Q Nf3 Qa2 Bg2 Re4 Rc1 Rb8 Nb1 Nc3 Rcg1 Ncd5 Qa4 Nc7 Bb3 Ra8 Qc4 Qa5 Ba3 d1Q+ Kb2 Qd6 Kc1 Qe8 Qe6 Qf7 Bb4 Qg8 Nfd2 Rb8 Rd1 Ra8 Rhg1 h1N Qg4 h2 Qh3 Ng3 c6+ Kb8 b7 Ka7 b8N h1N Bf3 Ngf5 Rg3 Nb6 Bg4 Ba6 Rf3 Ng7 Bd7 Ng3 Re1 N3h5 Rh1 Nce6 c7 Nec8 Nc6+ Kb7 Bd5 Rb8 Bc4 Na8 b6 Qg5 Bb3 Bd3 Na7 Ka6 b7 Bc2 Nc6 Ne7 Na7 Re8 c8B Nec7 Ba3 Kb6 b8Q+ Ka5 Bb7 Nc8 Bbc6 Ka6 Bb4 Qdg3 Bcd5 Bc5 B5c6 Nce6 Qf4 Nec7 Qfh4 Q3e5 Q4g3 Qd6 Bb7+
b2Q1N1r/2r2rrN/1b6/2Rr3n/1R4BB/pRR1K1p1/1qq1bP2/2kN2nQ b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kf6 b4 Ke5 c4 g5 b6 d5 b5 a5 h5 g3 h6 g2 b7 e3+ Ke2 Ke4 b6 e5 c5 d3+ Ke1 d2+ Ke2 d4 h7 g4 c6 a4 c7 a3 Rh3 Ra5 Qe1 Rd5 Rh1 Qf6 Ra2 Nd7 b8N Bc5 b7 Bb6 Nh3 g1R Kd1 e2+ Kc2 d1B+ Kd2 d3 Kc3 d2 Kb4 Kd3 Ng5 e4 Rh2 e3 Rh4 Ne5 Rc2 Nf3 Rc5 g3 Kb5 Qb2+ Rb4 Nf6 Nd7 Nh5 b8R Bb7 c8R Ba8 Nc3 Kc2 Kc4 Rh1 Bh3 Ng1 Qf1 e1R Nf8 e2 Bg4 Rg8 h8Q Rg7 Qh3 Rf1 Rb3 e1R Ngh7 Ree7 Rb4 Bf3 Nd1 Ref7 Qg2 Rh2 Qh1 Re1 Qg8 Ree7 Rb7 Rc7 Rb3 Ba7 R7b4 Bb6 Qh8 Rgg5 Qf6 Rgg7 Qd4 Kb1 Kd3 Be2+ Ke3 Rh4 Nc3+ Kc2 Qf6 d1Q Qd8 Rh3 Bd2 Qdb1 Bc1 Q1a2 Nd1+ Kb1 Bd2 Rh4 Bc3 Kc1 Bf6+ Qc2 Rc3 Qb2 Rb8 Nf4 Be7 Rh6 Bh4 Nh5 Nf6 Rh8 N6h7 Rd4 Rb7 Rd5 Rbb3 Ba5 R7b5 Bb6 R5b4
r3R2K/qnq3RR/1kb4b/1BN1B3/n1N1P1p1/6q1/1pQ1rNq1/3R1rqQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 b5 d4 f5 e4 c5 a4 Kc7 h5 g5 d6+ Kb6 d5 f3 Ke3 f2 h6 b3 d7 b2 d6 c4 Kd4 c3 Ke5 f4 h7 c2 Qd5 g3 Rh3 b4 Ne2 g4 Qd2 f3 Ng1 g2 Na3 b1Q Bb5 f1Q Bb2 c1Q Qc2 Qc7 d8R f2 Rd7 b3 Rg7 Qa7 d7 Ne7 Kf6 Nec6 d8N Na6 Nb7 Na5 Nc5 Bd7 Be5 b2 Rh4 Qce1 Nh3 g1Q Kg6 Qa2 Rd1 Bc6 Kh6 Qc7 Nc4+ Ka7 Rh5 Nb7 a5 Qfg2 Kg6 f1R Nf2 Qc3 Rh6 Qcg3 Rh1 Nb4 a6 Nd5 Rh3 Nb6 Rh2 Rg8 h8Q Na4 Kh7 Rd8 Rh6 Rd2 Rh4 Re2 Rh1 Kb8 a7+ Kc8 Re7 Bh6 a8R+ Qb8 Ra7 Qc7 Rh5 Rd8 Rg5 Kb8 Rgg7 Qa1 Re8 Qa2 Ra6 Qa1 Rb6 Ka7 Kg8 Rc8 Qh7 Ra8 Kh8 Bd5 Rd6 Bc6 Rdd7 Qaa3 Nd2 Kb6 Rde7 Bg5 Qh1 Bh6 Rh7 Nc3 Rd7 Qa7 Rdg7 Na4 Nc4+
3b4/2Rn2Br/n2rnBnb/1NnB1q1Q/2Q1pk2/K7/P1b2RpN/1q4BR b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 f4 Kd7 d4 Kd6 Kd2 g5 Kc2 e5 Kb2 b5 h4 c5 h5 c4 f5 g3 h6 b3 f6 e3 h7 g4 f7 b4 Rh5 e2 Bg5 e1B Bf4 g2 Be3 c3+ Kc1 g3 Bc4 b2+ Kc2 b3+ Kd3 c2 Nf3 g1N Nc3 b1Q Bh6 c1N+ Ke3 g2 Bf4 b2 Bh2 Nh3 Bg1 Nb3 Nh2 Nd7 Rg5 e4 Qh5 Qf6 Rg7 Nbc5 Bb3 Be7 f8R Bd8 Bc4 Qe6 Rf2 Bd2+ Ke2 Bc1 Kd1 Ne7 Bb3 Ng6 Re7 Nb8 Rc7 Nba6 Bc4 Bd7 Nb5+ Ke7 Bb3 Qf5 d6+ Kf6 d5 Ke5 Bc4 Bc6 d7 Ng5 d6 Nge6 Bb3 Ra7 Bd5 Rf8 h8B+ Rf6 Bg7 Bh6+ Ke2 Nef4+ Kd2 Nfe6+ Kc3 Rb7 Na7 Ba4 Nb5 Bc2 Kc4 Nb8 Kb4 Nba6+ Ka3 Ra7 Re2 Kf4 Rd2 Be7 d8Q Nd7 Qa8 Bd8 Qb8 Qe1 Qc8 b1N+ Kb2 Nc3 Ka3 Na4 Rf2+ Ke3 Rc1 N4c5 Ra1 Nb6 d7 Qb1 Re2+ Kf4 Rd2 Be7 d8B Nbd7 Re2 Nef8 Rd2 Rd6 Re2 Bh4 Bdf6 Nfe6 Rd2 Nab8+ Qa6 B4g5 Qa4 Nba6 Qc4 Bh4 Bfd4 Bd8 Bdf6 Rb7 Rf2+ Kg3 Rc8 Nde5 Bf8 Rh7 Rc7 Qd1 B8g7 Ned7 Rf1 Nef4 Be3 Nfe6 Rh1 Qe1 Bg1 Kf4 Rd1 Qf1 Rd2 Qb1 Rf2+
7n/2B3b1/1QNQ2N1/n3n3/b1np2r1/1nkNrPQ1/pRBQ1q2/3KRrq1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Qd2 d3 c4 Kf7 g4 Kf6 b4 Ke5 f3 Kd4 g5 h5 b6 a5 b5 e5 g6 d5 c5 e3 g7 a4 c6 a3 b7 e4 b6 e2 c7 a2 Qf4 h3 Qd6 d2+ Kf2 d1N+ Ke1 h2 Qa3 h4 Kd2 e1N Bh3 e3+ Ke2 Nc6 b8N Nh6 g8Q Ra4 b7 Nf7 Nd7 Nc2 b8Q Na5 Bg2 h3 Qg5 Nb2 Nd2 Bg7 Nf8 Bd7 c8Q Qb6 Ng6 Re8 Qcd8 Nh8 Nb3+ Kc3 Qbg3 Rg4 Rb1 Na1 Nd4+ N1b3 Bf1 Ba4 Nc6 Ree4 Ke1 e2 Bf4 Nbc4 Rb2 Qe3 Qc5 d4 Bc7 Re6 Qb6 Qd2+ Kf2 e1N+ Be2 Re8 Qdd6 Nd3+ Kf1 Ree4 Bd1 Nde5 Q5f4 Qc2 Qc1 Re3 Ne2+ Kd3 Nef4+ Kc3 Rg1 h1Q Nd3 h2 Qf8 Re2 Qd6 Ree4 Qe3 Qhg2+ Ke1 h1R Rf1 Qh2 Rg1 Qcg2 Bc2 Qf2+ Kd1 Qhg2 Qe2 Re3 Re1 Rf1 Qb7 Qfg1 Qb6 Q2f2 Qd2+
1B1QB2n/nRR1q2k/1bnQb3/Nq6/3p3r/pr1Q4/1PN1n3/NQ1K1nb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 a5 h4 g5 c4 f5 h5 Kf7 b6 Kg7 b7 d5 c5 d3 e5 a4 e6 g3 c6 g2 e7 a3 e8Q d2+ Ke2 d4 h6+ Kh7 c7 f3+ Kd3 f2 Ke2 f4 Qe5 g4 Nf3 g1B Ne1 g3 Qd6 g2 Nc2 Nc6 b8N Be6 c8Q Nge7 Qa6 Ng6 Qd3 Qe7 Rh5 Ra7 Rb5 Rb7 Qe1 d1N Nd2 Rb6 Nb3 f3+ Kd2 Rb7 Rb1 Rb6 Nba1 Nc3 Rb4 Nb5 Kd1 Nba7 Bf4 Rb7 Rc1 Rb5 Be2 f1N Be5 f2 Bh5 Ng3 Qee4 f1N Qe1 Ne2 Bg3 Nd8 Nc6 Rb6 Na5 Ndc6 Rc4 Rb3 Rb4 Bg7 Rb7 Be5 Qc5 Bc7 Qd6 Bb6 Bf4 Bh2 Be5 g1Q Bg3 Kg8 h7+ Kg7 Bf4 Qg5 Bg3 Qb5 Bf4 Nge5 Be8 Nf7 Bg3 Bg1 Bf4 Rg8 Bg3 Kh6 Be5 Rg7 h8Q+ Rh7 Qg8 Nh8 Qf8+ Kg5 Qd8 Rh4 Bb8 Qf6 Qfd6 Kh6 Ne3 Qg7 Rc4 Qe7 Nec2 Nb4 Rcc7 Nbc6 Qed2+ Kg7 Qc1 Kg8 Qb1 Kg7 Qd2 Kh7 Qd3+
4q2q/1qB3rR/2N2QqQ/1R1N2nn/KpnQ4/NB3p1P/4b2Q/1rb1q2k b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kc2 g5 Kb3 f5 e4 b5 a4 c5 a5 f3 a6 f4 a7 c4+ Ka2 c3 Kb3 c2 h3 f2 Ne2 g3 Bb2 c1Q Ra6+ Qc6 Ra4 g2 Na3 g1Q Nc1 g4 Nd3 g3 Rh2 g2 Qd2 Bg4 Nc2 Bh6 Ne5 Nd7 Bc4 f1Q Na3 Rb8 a8N Be2 Nc7 Ngf6 Ra7 Rh7 Bc3 Qa8 Nc6 Rg7 Rh1 Nb6 e5+ Kd7 e6+ Kd6 e7 Qe8 Rh2 Qe1 Qc1 Qh8 e8Q Nh5 Qe4 Qh1 Qec2 g1N Rg2 Rb7 Rg5 Nf3 Ba1 Qae8 Qa2 Bd3 Qh2 Be2 Rf5 Ng5 Qd2 Kd7 d6 f3 d5 Qhg1 Be5 Qg4 Kb2 b3 Kc3 b2 Kb4 Qgg1 Bb3 b1Q Bf4 Rb8 Rb7 Nc4 Bg3 Re7 Rf7 Qa7 Rh7 Rg7 Rb6 Qb7 Bf4 Nb2 Be5 Qbg6 Ka5 b4 Rb5 Nc4+ Ka4 Rd8 Bg3 Ne4 Qd4 Bc1 Qe3 Rc8 Qh6 Rd8 Ne6 Ng5 Nf4 Kc8 d7+ Kc7 Na5 Kd6 Nc6 Rc8 d8Q+ Qed7 Nd4 Ke5 d6+ Ke4 Nc6 Qde8 d7 Ke3 Qf6 Rc7 d8Q Rcd7 Qh1 Rd1 Bh2 Kf2 Qb6+ Be3 Nd5 Rb1 Qbd8 Bd2 Bc7 Bc1 Qh2+ Kf1 Qhd6 Kg1 Qd4+ Kg2 Q8f6 Kh1 Qh2#
3rr1rk/1B1nB2r/2Qrq2b/2QR2N1/pB1q1n2/N1PB1p2/2bKRQ2/7q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 a5 g4 h5 b4 d5 g5 f5 e5 Kf7 g6+ Kg7 b6 h3 b7 a4 e6 f3 b5 h2 b6 f4 e7 d3 e8Q h4 c3 f2+ Kd2 d4 Bh3 f1Q Ra3 f3 Qc6 Nd7 b8Q Ne7 b7 Nd5 Ra2 Rg8 Bb2 Nf4 Qbc7 Kh8 b8B Bh6 Bf5 h3 Na3 Qf2+ Qe2 Qe7 Q7b6 Qe6 Qbc5 Ba6 Bc7 Rae8 Bd6 Bc4 Be7 Bb3 Bc1 Bc2 Be4 Qh4 Qf2 Qhf6 Ne2 Qh4 Rd1 h1Q Ng1 h2 Nh3 Qhf6 Ng5 Qfe5 Nc4 Q5d6 Ba3 Qde5 Kc1 Q5d5 Bb4 d2+ Kb2 d3 Na3 Qd4 Bd5 Qf1 Bc4 h1R Bb5 Rh3 Ba6 Rgf8 Bb7 Qh1 g7+ Kg8 Re1 d1R Re5 d2 Rd5 Rg1 Ne4 Kh7 g8B+ Kh8 Bh7 Rgg8 Ng5 d1R Bd3 Rd2 Ra1 Rd8 Re1 Rfe8 Kc1 Bf8 Nb5 Rh7 Na3 Bh6 Q5d6 Re2 Qdc5 Re3 Kd2 Re5 Rd6 Rd5 Re2 Qeh3 Rde6 Rd6 R6e5 Qe6 Rd5
2Q1n2N/rBq1Q3/r2RK1Q1/2bNb1r1/pRQ2pP1/1q6/b4bk1/B1nb2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 c5+ Kc3 Ke5 b4 Ke4 g4 a5 d4 h5 e3 h3 d5 f3 d6 f4 d7 a4 b6 f2 b7 h2 b5 h4 b6 h3 Qe2 Ra7 Na3 Nf6 Rb1 Na6 b8Q Ne8 b7 Rh6 Nc2 Qc7 d8Q Be6 Na3 Nb4 Qe7 Nd3 Bb2 Nc1 Ba1 Rh5 Rb4 Rg5 Qc8 Bg7+ Kc2 Be5 Nf3 Bg8 Rg1 h1Q b8B h2 Bg2 f1B Nb5 Ra6 Ba7 Be6 Qf2 Be2 Qf1 Bd1+ Kd2 Bd5 Qe2 Bf7 Re1 Qf1 Nh4+ Qf3 Ng6 h1R Nh8 Rh7 Rh1 Bd5 Rh6 Rf7 Rd6 Rfg7 Bh3 Qg3 Qd3+ Kf3 e4+ Kf2 Qc2 Qb3 Nc3 Bg8 Bf1 Rf7 Bd3 Kg2 Nd5 c3+ Ke1+ Kh3 Kf2 c4 Bf1+ Kh2 Bg2 Rh7 Qd3 c2 B7d4 c3 Qc4 Na2 Be3 c1B Bb6 c2 Bc5 Bg7 e5 Ba3 e6 c1B Ba7 Be5 Be3 Bc2 Kf3 Bd1+ Ke4 Bd2 Bh1 Be1 Bg1+ Kh3 Bf3 Nc1 Bh1 Bf2 Bf3 Rg6 Kf5 Rhg7 Qf7 Rh7 e7 Rg5+ Ke6 Rhg7 Ne3 Kg3 Bb7 Rh7 Nd5 Kg2 Rb5 Rhg7 Rbb6 Bac5 Rb4 Bh7 Qh5 Bb1 Qg6 Ba2 Ba8 Nf6 e8Q Rd7 Qe7 Ne8 Bc3 Qb6 Bc6 Rda7 Ba1 Qc7 Bb7
br1q2R1/2k3b1/n3Q3/1Nq2BbP/5n1n/npn1Q3/r1RN1Bp1/1RK3QQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 f5 a4 b5 e4 c5 h4 g5 d6 c4 d5 c3+ Kc2 b3+ Kd3 f3 a5 g3 e5 c2 Kd2 b2 h5 f4 a6 b4 a7 g2 Be2 f2 Ra6 f1N+ Kd3 f3 Na3 b1N Nb5 b3 Be3 c1B Bf2 g4 Rc6 g3 Rc4 Bb7 Rc2 Nc3 e6+ Kc8 e7 Na6 e8Q Nh2 Qe4 Nf6 Qe3 Bg7 Bf1 Rb8 a8Q Rh7 Qaa7 Ba8 Qad4 Kb7 d7 Rh8 d6 Nfd5 Qe6 Bg5 Qde3 Nf4+ Kd2 Kc6 Kc1 Rh6 Nh3 g1Q Bd3 g2 Bf5 Kb7 Be1 Rh8 Nf2 Re8 Ne4 f2 Nd2 f1N Bg3 Nf3 Bf2 Nh4 Qde1 Nb1 Qd1 Ng3 Qf1 Na3 Qfe1 Qa5 d8R Ne4 d7 Nc3 Qd1 Re7 Rg8 Qc7 d8Q Qc8 Qdd4 Qd8 Nd6+ Kc7 Qde1 Qf1 Qd1 Qb5 Qg1 Qc5 Nb5+ Kb7 Qh3 Rd7 Qde5 Rd4 Qee3 Ra4 Qgh2 Ra5 Re1 Ra4 Qg1 Ra5 Qhh1 Ra4 Na7 Kc7 Rf1 Ra5 Rd1 Ra4 Nb5+ Kb7 Re8 Nab1 Rg8 Ra1 Kb2 Na3 Rb1 Ra2+ Kc1 Bd4 Qg6 Bg7 Qge8 Kb6 Q8e6+ Kb7 Nd4 Kc7 Nb5+
1b5B/1bn1kQ1n/N1R1rR1r/6p1/q1R1Br1q/P1r1Rp1r/K2Q1B2/1N5q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 f5 h4 b5 d4 c5 Kd2 g3 Kc2 c4 Kb2 b3 d6 f3 h5 b4 h6 g2 e5 f4 h7 f2 d7+ Ke7 e6 Ra3 d5 Na6 Rh6 Nc7 Bd3 f1R Qg4 Bb7 Nh3 g1Q Qf3 Qg4 Be3 Nf6 Nf2 g5 Bd4 Qh4 Ne4 Qe8 d8R Qa4 Bf2 Bg7 Rb8 Re8 h8B Nh7+ Rf6 Rh1 Qg4 f3 Qh5 Rh3 Rc8 c3+ Kc1 c2 Kb2 c1R Nc5 Re1 Na6 Re4 Qg6 Rf4 Be4 Nb5 Rc4 Nc7 Nc3 Bf8 Rc1 Bg7 Ka1 b2+ Kb1 Rb3 a3 Bf8 Ka2 b1R Rc2 Rbh1 Nb1 Rc3 d6+ Kd8 d7 b3+ Ka1 b2+ Ka2 Bd6 Qh5 Ke7 Rc6 Rd3 R2c4 Rc3 Qg6 Rg8 Qf5 Rg6 Qd5 Re1 d8R Rh6 Qd2 Nb5 Rdc8 Bb8 Rd8 Nc7 Rd3 Ke8 e7 Re2 Bd5 Re5 Re3 Re6 R6c5 Kd7 e8Q+ Kd6 Qh5 Ke7 Be4 Qa5 Rc6 Rc2 Kb3 Rc1 Nc3 b1Q+ Qb2 Qa1 Qd2 Rc2 Qg6 Qh1 Nb1 Rc3+ Ka2 Qa4 Qf7#
1B2n1nn/N1N2rBB/2Qq4/4Rp1B/R2bq2r/1Q1p3b/K1RP4/n1r1k1n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 g4 Ke7 c4 Ke6 e4 Ke5 c5 Kd4 g5 a5 b6 d5 e5 h5 g6 f3 c6 f2+ Ke2 a4 c7 a3 b7 b3 g7 a2 e6 b2 e7 h3 e8B h2 Nc3 b1Q Qc2 h4 Kd1 h3 Ba4 Ra7 Be8 Qd6 Bc4 f1R+ Ke2 Nc6 b8B Rh4 Ne4 Nce7 Ba6 Ng6 Bb7 Nh8 Nc5 f6 Ba3 Rc1 Na6 Bd7 Qc6 Qe4+ Kf2 Kd3 c8R d4 Nf3 Bf5 Re1 h1N+ Kf1 h2 Bh5 Be6 Bb2 Nf2 Nc7 h1N Bc3 Nh3 Ne5+ Kc2 Ba6 Ng1 Bd3+ Kb3 Bb1 Ng3+ Kf2 Nf5 Re3 Ngh6 g8Q Ng7 Re1 Ne8 Kf1 Qed5 Bh7 d3 Kf2 Kc2 Ke3 Bd7 Re2 Kd1 Bd4 Q5c5 Qb3+ Qc2 Bc3 Ng8 Bb2 Bg4 Ke4 f5+ Ke3 Qe6 Kd4 Bg7 Bc3 Qg6 Kc4 Bh3+ Re4+ Qg4 Kb4 Rb7+ Ka3 Ra7+ Ra4 Ke1 Rb1 a1N Bd4 Qc5+ Ka2 Qe7 Rb2 Qe4 Rc2 Nef6 Re8 Qd6 Qc5 Qd8 Ne6 Bf8 Nc6 Rf7 Na7 Bg7 Nc7 Qd6 Re6 Ne8 Qc6 Bh6 Be5 Be3 Bg7 Bd4 Re5
3n1NN1/3r1n1b/n1RnB3/3P4/1Q1Nnp2/B1p2r1Q/k1qqB1RB/5bbK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kd5 d4 h5 b4 c5 e3 a5 g5 f5 g6 h3+ Kh2 a4 g7 c3 b6 f3 b5 c2 b7 c4 b6 f4 Nd2 a3 Rb1 c3 Ra1 h4 Be2 f2 Qe1 f1B Nb1 a2 Bb5 Nc6 b8Q Bc5 b7 Bf5 Ne2 Bh7 Rg1 Nh6 g8N Ra7 Ba3 c1Q Rg2 Nf7 Qg3 Qc2 Kh1 h2 Qh3 Qd7 Bd3 Ncd8 Nd2 Qd6 Rd1 a1N Ne4 Nb3 Ng5 Bb6 Ne6 Nc5 Bb5 Na6 Nf8 Bc5 Bd7 Kc4 e4 Kb3 e5 Ka2 Be6+ Qd5 Qd6 Bb6 b8B Rd7 Qb4 Ba7 Nf6 Rg8 Rd2 Rg3 Ng8 Rf3 Rd1 Qd2 Bd6 Qb3 Bc5 Bb6 d5 Qbc2 Re1 Ba7 Bf2 Bb6 Bg3 Bg1 Nd4 Qcd1 Qg4 Nb8 Bf5 Qc1 e6 Qcc2 e7 Qcc1 Re6 Na6 Rc6 Qb1 Be6 Qbc2 Rf2 Bc4 Kg2 h1N Re2 Nf2 Kf1 h3 Qh4 h2 Kg2 h1N Bh2 Ng3 Qh3 Nfe4 Rf2 Nf5 Kh1 N5d6 Rg2 Rd3 e8B Ra7 Rc8 Rf3 Bb5 Rd7 Rc6 Bf1 Be2
bq1B1BKR/3RRQNQ/1nbRb3/2kp4/7p/1Br1P1b1/rb5r/N1q4n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 f5+ Kh5 a5 b4 a4 g4 d3 c4 d2 c5+ Kd5 e3 h3 g5 h6 Kg6 h2 Kf7 f3 g6 f4 g7 d6 b6 f2 b7 h5 b5 f3 c6 a3 c7 h4 b6 a2 Bc4+ Kc5 Qf1 d1B Nh3 Ne7 g8Q Nd7 b8R Nf5 b7 Ng3 Nf4 Ba4 Qh7 Nb6 Bb3 Bc6 Na3 d5 Nh5 Bd6 Rg1 h1R Ng7 Rh2 Nc2 Nh1 Rg6 Bg3 Rd6 Re8 Rb1 a1B Rb2 B8d7 c8R Ra2 Rc7 Qc8 Rb1 Bb2 Na1 Bg4 Ra8 Qb8 Re7 Rc8 Bd2 Bgd7 Ba5 Be8+ Kg8 Rc7 Qh3 f1Q Qe6 f2 Qf7 Qc1 Ra7 f1B Red7 Qa8 b8B Bh3 Re7 Rc8 Rad7 Be6 Bc7 Qb8 Bd8 Ba8 Bc3 Qc2 Rf1 Qb1 Rf5 Qc1 Rh5 Kb5 Be5 Rc3 Bf4 Kc5 Bh6 Ra7 Nf5 Ra2 Bf8 Rg2 Ng7 Rh2 Rc7+ Bec6 Rcd7 Nf2 Qb1 Nh1 Rh8 Ra5 Qd3 Ra2 Qh7
r2nRn1b/2b1Qrn1/nqkB2qQ/1p4QN/n3r3/1P3p1B/2Q5/KR3NB1 b - - 0 1 legal: proof: f4 c5 h4 g5 a4 gxh4 d4 cxd4 f5 b6 a5 Bb7 a6 e6 axb7 exf5 Ra4 f4 Ra5 Qe7 Ra1 Qd8 Kd2 a5 c4 d5 Kc2 Kd7 e4 h5 g4 f5 b3 h3 Kb2 b5 e5 a4 c5 d3 e6+ Kc6 e7 d2 e8Q+ Nd7 b8B h4 g5 f3 g6 h2 g7 d4 Bd3 f4 Qc2 d1Q Qe3 a3+ Ka2 h3 Bd6 f2 Nf3 f1R Be7 Nh6 g8Q Nf7 Ne1 Qh5 Rg1 h1N Bd6 h2 Rg2 Ng3 Qg5 h1N Bh7 d3 Bb8 d2 Qcc3 d1N Qc4 Qb6 Re2 Ne4 Bd6 Qg6 Qc2 Nb2 Ng2 Na4 Nd2 Nhg3 Rb1 Nf5 Ka1 a2 Re1 f3 Nf4 Nd8 Nh5 Ng7 Qe7 Rg1 Qh6 Rg4 Nf1 Rh4 Bg8 Rh7 Be6 Rf4 Qeg5 Be7 Re3 Nf8 Bh3 Bf6+ Bb2 Be5 Bd4 Rf7 Be7 Bc7 Bd6 Nf2 Ree1 Nd3 Re8 Nb4 Bg1 Na6 Qe2 Rf4 Qee7 Re4 Qe3 Nf5 Q3g5 Rf7 Qc1 Kd5 c6 Ng7 Qce3 Bb8 c7 Kc6 c8Q+ Bc7 Q7g5 N4c5 Kb2 a1B+ Ka2 Na4 Qe1 Rg4 Qee7 Bc3 Qcf5 Rc4 Qd3 Re4 Qc2 Nf5 Qb2 Bh8 Ka1 Ng7 Qc2+
1BB1n1N1/1n2N1bN/2b3Kb/PbrR4/Q1p1rqR1/1qB1pb2/nQ3k2/2B5 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 h5 f4 c5 a4 e5+ Kg6 b5 d6 e3 a5 c4 d3 b3 f5 e2 f6 e1B g5 b2 f7 h3 d7 h4 Qb3 h2 Be2 e4 Bh5 h3 Qc2 b4 Bf3 b3 Qd2 Ba6 Qd1 Bb5 Nc3 b1Q Bg4 b2 Qa4 Rh5 Nd5 Bh6 f8B Nc6 Bg7+ Nf6 Ne7 Qb8 d8B Qf4 Bc7 Re8 Bc8 Nd8 Bb8 Bc3 Ra2 Nb7 Nf3+ Kc5 Rd1 h1B Rg1 h2 Rg4 Qc2 Ra3 b1N Ra2 Qb3 Rd2 Bg2 Bh8 h1B Rd1 e3 Bg7 Qc7 d4+ Kd6 d5 Kc5 Rg3 Qf4 d6 Bd4 d7 Nc3 d8Q Na2 Rg4 Bc3 Nd2 Bgc6 Nf3 Ba1 Qd2 Be5 Ng1 Bhf3 Qb2 Bd4 Nh3 Bc3 Rh1 Kd4 Rd1+ Ke4 Rd5 Be5 Kf7 Bc3 g6 Bd4 Ng5+ Kd3 Qba3 Ke2 Nh7 Kf2 Bh8 Rf5 g7 Be5 g8N Bb2 Rd1 Rc5 Kg6 Ba1 Rd5 Bd4 Nf5 Re4 Nfe7 Ne8 Q3b4 Bdg7 Qba3 Bf8 Bc3 Bfg7 Qb2+
5BQq/3qbNRb/5kr1/Pb3p1K/3pnrN1/4b3/2BnR2B/2N1qBQb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 d5 a4 b5 c4 g5 e4 b3 h4 d3 h6 d2 a5 b4 e5 b2 e6 b3 Kg4 f3 h5 f2 h7 Kf6 c5 Na6 h6 Bb7 c6 Nc5 e7 Ra6 e8Q Be7 c7 Ne4 Kh5 g4 c8B g3 Qg4 d1Q Na3 b1Q Bf4 g2 Nc4 b2 Ra2 Nd2 Ne2 g1B Ne5 d4 Rh2 Bh1 Rg2 Qd7 Bh2 Qe1 Nc1 Qc2 Qd1 b1B Rg7 Qb3 Qg4 Qb8 Bb7 Bf5 Be4 Rd6 Bc2 Qbc8 Bc4 f1B Qg2 Be3 Qg1 Bfe4 Ba6 Bb5 Qd8 Ba4 Bf1 Bb5 Ng4+ Kf5 Qc7 Rg6 Qcg3 Nf6+ Kh4 Rd8 h8B Rf8 h7 Bed3 Rb2 Nfe4+ Kh5 Qa8 Ra2 Rc8 Q3g2 Rcc6 Qg3 Rcf6 Qb8 Ke6 Qg8 Rf4 Qe8 f5 Rg8 Nb3 Bd1 Rf3 Re2 Rf4 Bc2 Bdc4 Bg7 Nbd2 h8N Qb8 Qc8 Bd5 Qc4 Qe5 Bf8 Qg7 Nh6 Kf6 Qa2 Qh7 Rg7 Bg8 Nf7 Bb4 Nd6 Qh8 Qd5 Bh7 Qg8 Bc5 Ndf7 Be7 Ng4+
r4N2/R3QKR1/1q2nb1P/1B1n1bNB/2r2k1q/3p1bR1/1prB1B2/Q2b2b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 b5 h4 g5 a4 b3 f4 g3 c4 g4 h5 b2 h6 d3 c5 d2 c6 g2 c7 b4 a5 e4 a6 b3 a7 e3 Nh3 g1Q Bb5 e2 Ra3 e1R Nc3 b1B Ne2 b2 Ng5 g3 Nd4 g2 Nde6 Nc6 Rg3 Qb6 Rg1 Bg7 Nf8 Bb7 c8B Re2 Qf1 d1B Bd2 d6 Be6 Re4 Bf7 Rc4 Bh5 Rc8 a8R Nd4+ Bc6 Rc2 Ra7 Ne6 Qa6 Rc7 Qa1 Ne7+ Ke4 Nd5 Bb5 Nc5+ Kd4 Nc3 Kc4 Bbf3 Kd4 Rg8 Kc4 d5+ Kd4 Ke7+ f6+ Kd6 f5 Rh8 Re1 Rg8 Re7 Bh8 Rg7 g1B+ Be3 Rc6 f7 Rc8 f6 Ne6+ Kd3 d4 Bd2 Ra8 Kc4 Ke5 Nfh7 Qbd6 f8B Q6b6 f7 Kf5 Bb4 Nd5+ Bbc3 Re8 f8Q+ Qf6 Be1 Kf4 Bf2 Rec8+ Qc5 Qfd8 Nf8 Rc7 Ngh7 Qh4 Ng5 Re2 Ba5 Bf5 Bc3 d3 Bb4 Rcc8 Ba5 Nec7 Qe7 Rc2+ Bc3 Qa5 Kc5 Ne6+ Kd6 Rc4 Bce1 Qb6+ Kd7 Nd8+ Ke8 Ne6+ Kf7 Nc5 Rh7 Bf6 Rg7 Ne6 Bd2+
bNKBR1b1/8/3Q2pn/r1RBrp1r/2qN1P1N/1q1B1b2/1bb4n/Qk4N1 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 f5 h4 a5 c3 d5+ Kb3 g6 Ka4 b3 f3 b2 h5 d3 b6 d2 Kb5 a4 c4 Kd4 e5 a3 c5 g3 e6 g2 c6 a2 b7 Ba3 e7 Nh6 e8B Nd7 b8N Qh4 c7 Ne5 Kb6 Ra5 Qe1 d1B Bc4 Bb7 c8N Bb3 Kc7 Ba8 Beb5 Neg4 Nd2 Kc3 Na7 Kc2 Qg3 b1B Qd6 d4 Nac6 d3 Bd5 Bb2 f4 Qg3 Ndf3 d2 Nh4 d1B Be3 Bf3 Bb6 Nh2 Bd3+ Kc1 Nd4 Qh3 Bc6 Bg8 Kc8 Re5 Bd5 Qg3 Nh3+ g1Q Bd8 Qd1 Re1 Qf2 Re3 Qb3 Ng1 Qe2 Re4 Kd2 Re3 Bc2 Rc1 a1R Re4 Ra5 Re3 Bb1 Rc5 Bc2 Re4 Kc1 Re3 Nf7 h6 Kb1 h7 Nh6 B3e4 Qec4 Bd3 Bf7 Re4 Rhe8 h8Q Bg8 Qhf6 R8e7 Re3 Rh7 Bc6 Rd5 Re8 Re5 Bb7 N6g4 Bd5 Rh5 Qg7 Nh6 Qa7 Rb5 Qa4 Ra5 Qa1+
1k3qbR/2n5/Q1B1b1pB/1QPpQ2q/K1N1r3/5nn1/1b1rB3/bN2Q1bR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 c4 a5 Kc2 g3 Kb3 d3 h4 d2 e4 g6 b6 g2 e5 f3 c5 f2 h5 f4 e6 f3 b7 a4+ Ka3 Na6 b8Q Bg7 b4 Nc7 b5 Ne7 h6 Nf5 h7 Bb2+ Kb4 a3 e7 a2 b6 Nh4 b7 Ra4+ Kb3 Re4 Ne2 g1B Na3 d5 Nd4 Kd7 Be2 f1N Nf5 f2 Qa7 Ng3 b8Q f1B Nd6 Nf3 Qe1 Bh3 Ndc4 Be6 Ka4 Bg8 Nb1 Qf8 e8B+ Kd8 Bc6 d1Q+ Qb3 Bce6 Bh6 Kc8 Rh2 Qd2 Rh1 Qg5 Qb5 Qh5 Rh3 Rd4 Qaa5 Rd2 Qba6+ Kb8 Rh2 Bgf7 Rh1 Rg8 h8Q Rg7 Rh2 Bg8 Rh1 Rf7 Qe5 Rf4 Rh2 Re4 Q6b5+ Kc8 Qaa6+ Kd8 Nc3 Qh4 Qb1 Be3 Bg7 Qg4 Rh7 Qh5 Bh6 Bf2 Qg1 Bd4 Rf1 a1B Nb1 Bf2 Rh8 Be3 Qab6 Kc8 Qf2 Bed4 Qe1 Be3 Rh1 Bg1 Bb7+ Kb8 Qbd6 Qf6 Qda6 Qf8 Bc6#
1N1n1BQ1/1r1bb2k/Bqqb1Pq1/3p1R2/Q1RN1Rqn/4r3/2N1p3/4KN1q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kg6 f4 e5 c4 a5 b6 h5 b5 a4 c5 a3 b7 a2 c6 h3 g5 d3 c7 h4 b6 d2+ Ke2 e3 f5+ Kh7 f6 h2 Qe1 h3 Qd1 e4 Qc2 Nh6 Qd1 Nf5 Qc2 Be7 Kd1 Re8 Be2 Ra7 Na3 Nc6 b8N Rb7 Qa4 Nh4 Ba6 d5 Ke2 Bd7 c8R Bd6 Rb1 a1Q Nf3 Qc3 Rf1 h1Q Rb4 h2 Nc2 Qg1 Ba3 h1Q Nh2 Qc7 Rf3 Nd8 Nf1 Q3c6 Rd4 Qg4 Rc4 Qf5 Rf4 Qg6 Rf5 Qb5 Nc6 Re7 N6d4 Qbc6 Kd1 Re5 Nb4 e2+ Kc2 e1B Ra8 e3 Kd1 Qh5+ Ne2 Bf8 Rc8 Qb5 Bc1 Be8 Rd4 Ra7 b7 Bg3 b8N Rb7 Nc2 Qbb6 Ba3 Bd7 Rg4 Re8 Be7 Bd6 Rgf4 Qcc5 Rc7 Qcb5 Rc5 Q5c6 Rcc4 Qf7 Ned4 Qg8 Ke2 Qg7 Kd3 d1Q+ Kc3 Qg4 g6+ Kh8 Kd3 e2 Kd2 Qg8 g7+ Kh7 Ke1 Qf7 Rf2 Qfg6 R2f3 Bc7 Bb4 Re3 R3f4 Bc5 Bd2 Ba3 Bb4 Be5 Bf8 Be7 Ne6 Bc7 Ned4 Bcd6 g8Q+
1Q1Nbr2/qrB2n2/1n1NP1r1/1qNR1B1R/1RrpK2n/r1k1Q3/1p5N/6b1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kd6 h4 Kc5 a4 Kc4 e4+ d3 a5 d5 a6 b5 c3 g5 e5 f5 h6 b3 e6 b2 a7 g4+ Kf2 g3+ Kf3 g2 h5 b4 h7 b3 h6 Qe7 Ra3 Bd7 Qd2 Be8 Nh3 g1R Be2 Nd7 Ng5 Nb6 Ne4 Rg6 Qe3 d4 Bd1 d2 Bc2 d1R Ra5 Bg7 Rd5 Be5 Bd2 Rc1 Nc5 Qb7 Rh5 Qd7 Kf2 f3 Be4 f4 Bf5 Rd8 a8Q Qa7 Qb7 Ra8 Qb8 Rc2 Kf1 f2 Ke2 f1N Kf3 Nh2+ Ke4 f3 Be1 f2 Nd2+ Kb5 c4+ Kb4 Nf3+ Rc3 Bd2 b1R Be1 f1Q Bg3 b2 Bf4 Ra3 Bg3 Rc1 Bf4 Ng4 Nh2 Ne7 Bg3 Rf8 h8R Rf7 h7 Nh6 Rg8 Rfg7 h8N Nf7 Rf8 Bf4 Rg8 Bg5 Bc7 Bh4 Rf8 Bf2 Rg8 Bg1 Rf8 Nh6 Nf7 Rcc3 Nd8 Nf7 Na4 Kb3 c5 Qb5 c6 Kc2 Nc5 Rc4 Bd6 Rh7 c7 Rhg7 c8N Rh7 Qg5 Kc3 Bc7 Rhg7 Nd6 Rh7 Bg4 Nf5 Rg8 Nh4 Bf5 Rh8 Rg7 Rf8 Rgh7 Qaa6 Qf4 Ra7 Rg7 Rb7 Qe3+ Kc2 Rgh7 Qa7 R7h6 Rg2 Rg6 Raa4 Qa3 Ra5 Rg3 Raa4 Rf3 Rg6 Rb3 Ra5 Rb4 Ra6 Qa2 Ra3 Qb3+ Kd2 Qe3+ Kc2 Qg5 Kc3 Qe3+
8/2q3rq/qbPp2n1/bp2QqB1/BNqN1BR1/5Q1R/2nrb3/BK1k2N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 g4 Kf6 c4 Ke5 Kc2 Ke4 a4 e5 f4 h5 f6 b5 g5 b3+ Kb2 d3 f5 d2 a5 Ke3 a6 h3 c5 e4 c6 h4 a7 h2 g6 h3 f7 Ne7 f6 Qc7 g7 Rh7 g8N Ng6 Bd3 Bc5 f8B d6 f7 Rg7 Na3 Bg4 Nb1 Bb6 Nf6 Be2 Bc4 Na6 Qc2 Nb4 Qd1 Nc2 Na3 Kf2 Be6 e3 Kb1 b2 Be7 Rh8 a8Q Rh4 f8B Rd4 Nf3 Rd3 Rg1 h1Q Qe8 h2 Rg4 Qf1 Bb3 h1Q Nd5 Qh7 Nb4 Rd5 Ng1 Rd4 Ka2 Rd3 Ba4 Rd5 Kb3 b1Q+ Bb2 Qc1 Ka2 Qfh3 Bef6 Q3h5 Qe5 Qf5 Bg5 Rd3 Nf3 Rd5 Qh1 d1Q Ng1 Ke1 Qf3 Qdd2 Bfe7 Kd1 Bf4 Qc3 Bh4 Rd2 Bhg5 Qcd3 Bd4 Qfc8 Rb1 Qdf5 Rb3 Qa6 Ba1 Nd4+ Bb2 Qc4 Ka1 Nc2+ Kb1 Qe7 Ba1 Qc7 Qg3 Bf1 Qf2 e2 Rh3 e1B Qg3 Be2 Qf3 Qce6 Nc4 Qeg8 Na5 Qc4 Nb3 Rd5 Nd3 Bea5 Nb4 Rd2 Nd4
qnK1n3/Q2B4/Rp1QP2b/1bB1N1q1/rn1pB3/rBn1b1n1/5kN1/1RR5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 c4 d5 a4 g5 h4 f3 e4 f2 h6 g4 h5 d3 h7 g3 h6 d2 a5 g2 a6 b3 a7 f4 Na3 b2 Ne2 g1B Rb1 f3 Nf4 b6 Ng2 Ba6 Ke6 Kd4 c5 Qh4 e5 Nf6 c6 Ne8 c7 Bb5 c8B Qg5 Bc4 f1Q Bb3 Be3 Bd7 f2 Nc4 Qd3 Rg1 f1N Rh1 Rg8 h8R Qe4 h7 Ng3 Rf1 Rg7 Rg8 Rf7 h8Q Rf4 Qh7 Bh6 Qe7 Kd3 Qd6 d4 Qe1 d1N Qa5 Ke2 Bd2 Nf2 Rfc1 Na6 Bb4 Rf3 Bc5 Nd3 Rh8 Ndb4 Qa3 Rd8 a8B Nb8 Qa7 Kf2 Rh7 Qc6 Rg7 Qc8 Be4 Qc6 Rf7 Qa8 Rf5 Qh4 Rh5 Qg5 Rhh1 Rc8 Ra1 b1N Ra6 Nc3 Rb1 Nf6 Rhc1 Rh8 Ke7 Rh7+ Kd8 Ne8+ Kc8 Rg7 e6 Rgf7 Bdc6 R7f5 Qg7 Rf7 Ne5 Ra7 Ra3 Ra4 Qa7 Rf7 Raa1 Rb7 Bd7 Ra3 Qa6 Ra7 Qb7 R7a5 Qa7 R5a4 Ba2 Ra5 Bc4 Rb3 Ra4 Ra3 Bb3 Ra6 Ra5 Be2 Rb5 R6a4 Ra5 Bb5 Ra6
2KbqBQ1/5b2/pbR3Bb/kN1r4/r1b2Q2/1R2Q2n/N1qp1P2/r1n3QR b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 c4 d5 g4 Kd7 b4 Kc7 c5 h5 g5 e3+ Kd3 h3 g6 h2 c6 Kb6 g7 e2 c7 e1B Nd2 h4 Ra3 h3 Ngf3 e4+ Ke2 d3+ Ke3 d4+ Kf4 e3 Ke5 e2 Ne4 d2 Ra5 d3 Qc2 d1Q Ra1 Nf6 g8R Nh7 Rb1 Be6 c8Q Qe8 Rb3 Na6 Ba3 Ng5 Rg6 Nc5 Nc3 Rh5 Qd2 Bh6 Kd6 Bc4 Nd4 Qc2 Qe3 Bd2 Bg2 e1B Be4 Bf7 Na2 Bc3 Rg1 h1B Qg4 h2 Bf5 Bc6 Rh1 Bcd5 Qg1 Bc4 Rf6 Bb2 Bg6 Nh3 Re6 Bec3 Rf6 d2 Re6 Kb7 b6 Ka6 Kc7 Rd5 b5+ Ka5 b7 Nd3 b8Q Nc1 b6 Bb4 b7 Bc5 Nb5 Bf6 Rc6 Bd8+ Kc8 Bcb6 Qg4 Qc3 Bf8 Qc2 Rd1 h1R Qg1 a6 Re1 Ra7 Qbf4 Rd4 b8Q Rad7 Qfg4 R7d5 Qbf4 Bd3 Q1g2 Ne2 Bf5 Ra4 Qg8 Bc4 Bg6 Rf1 Reb1 Rh1 R1b2 Ra1 Rb1 Bd3 Rg1 Bc4 Rh1 Nc1 Qg1
k3K3/1N2Q1Rq/p1n4B/N1bBRn1B/r3rq2/B1N1p1P1/1q4qq/5bbQ b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 e5 f4 h5 b4 d5 c4 Kd7 b6 Kc6 b7 e3 Kf3 h3 f5 h2 f6 e2 g3 e1B f7 e4+ Kf4 h4 Ke5 d3 c5 d4 Ra5 h3 Bg2 d2 Nc3 d3 Nge2 Bf2 Nf4 Qd7 Ne6 Ne7 Kf6 Bg1 Ba3 Rh4 Nd8+ Kc7 c6 e3 b5 Nf5 Kg6 Bc5 f8Q Re4 Qe7 Kb6 c7 Nc6 b8B Ba6 Qc1 d1Q Kf7 d2 c8B Qf1 Nb7 d1Q Bf4 Q1d2 Bh6 Qb2 Kf8 Qdd3 Ke8 Qf4 Bf3 Qf1 Bh5 Qfg2 Qe1 Bf2 Rf1 h1Q Qc1 h2 Qa1 Nd8 Be6 Bg1 Rd1 Nc6+ Rd8 Qh3 Bd5 Q1g2 Rc8 h1Q Qf1 Nb8 Rc7 Q1h2 Qf3 Qgc2 Qh1 Q3g2 Qe5 Qd3 Rg7 Nc6+ Kf7 Rd8 Qe7 Rd7 Ke8 Kc7 b6+ Kb8 Bg6 Ka8 Bh5 Bc4 Rb5 a6 Bdf7 Bb4 Rd5 Nh4 Bg8 Rd4 Nc5 Qh7 Re5 Bf1 Bb3 Re4 b7+ Ka7 Be6 Nf5 Ba2 Rdd4 b8N+ Ka8 Be6 Na5 Nb7 Bc5 Bd5 Rc4 Nc6 Ra4 Nd4 Nc6 Nb3 Bc4 N3a5 Bb5 Ba2 Bf1 Bd5
knq5/1r3nK1/pQ4N1/1rn1QN2/PN3Br1/1bR1bN2/p2rq1rR/3R3B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qb3 b4 Qa3 bxa3 Kf2 Kd7 Kf3 f5 g4 c5 d4 Kc7 e4 Kb7 b4 h5 e5 c4 b5 h3 e6 h2 b6 a6 d6 h4 d7 a2 g5 c3 e7 c2 e8Q h3 g6 Ra7 g7 Nh6 g8N Bc5 d5 Nf7 d6 Rh4 Qe6 Rg4 Nd2 Be3 Nb3 Ka8 Nd4 Rb7 Ne7 Rg2 Bd2 c1N Ng6 Nd3 Qe5 Nc5 Rc1 Qe8 d8Q Be6 d7 Bb3 Qdf6 Qc8 d8N Rg4 N8c6 Rg2 Nb4 Rg4 Nge2 Rg2 Rg1 h1R Rc3 Rhh2 Bc1 Rg4 Ng3 Rd2 Bg2 h2 Rd1 h1R Qfe6 Rh8 Bh1 Rhh2 Q6f6 Rhg2 Qd8 Rd7 b7+ Ka7 Rc4 Rc2 Bd2 Ne6 Rb1 Bf2 Qef6 Rg1 Qfh8 Nc6 Rc3 Bd5+ Ke2 f3+ Kd3 f4 Bc1 Rb2 Nbc2 Nc5+ Kd2 Rc7 b8R Be6 Rb4 Ka8 Ngf5 Rb7 Ra1 Nb8 Qb6 Rb1 Qg7 R1g3 Rb5 Bg1 Qh8 f2 Rb2 f3 Ke3 Bc4 Nb4 Be6 Nbc6 f1Q+ Rf2 Rb5 Nb4 Bb3 Qe8 Rg5 Kf4 Qe1 Rb2 f2 Qe5 f1R+ Nf3 Rf2 Bd2 Rh2 Rd1 Bd4 Ng1 Rd3 Nf3 Rg1 Bc1 Qf1 Rf2 Qe2 Be3 Rd2 Rg2 Nd8 Kg5 Nf7+ Kf6 Rh4 Bh6 Rg4 Bf4 Be3 Rh2 R1g2 Kg7
2bK1Q2/qN3b1P/2rb3R/1R1Q3p/2b1rnnB/1b2R2B/q2kr1pN/6BR b - - 0 1 illegal: No proof kernel
kq1q1QN1/5KPB/1Br3r1/2bRr1Br/2pNn2r/NN1pn3/1Qq5/1R1b4 b - - 0 1 illegal: No proof kernel
bBb1q1B1/2Nq1Rp1/B2nQ2n/4R3/nnr1PN2/Qr1p2BN/k2n4/b3K3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 b4 Ke7 c4 Ke6 h4 a5 c5 Kd5 e3 f5 h5 f3 h6 f4 h7 a4 b6 d3 b7 Kc4 b5 d5 b6 f2+ Kd2 f3 c6 a3 c7 a2 Qe2 Kb3 Rh2 d4 Rh3 g3 Rh4 g2 Re4 Ba3 Kd1 d2 Qa6 Nh6 Bb5 f1N Nh3 g1Q Rg4 f2 Bd3 Nc6 b8B Bb2 b7 Na5 Nc3 Qe8 Rg5 Nc4 Ne2 Qg4 Re5 Qgd7 Qe6 Ra4 Nef4 Rf8 Ke2 d1N h8Q Nd2 Bh7 f1B+ Ke1 d3 Bg8 Bg2 Rb1 Bc6 e4 a1N Qh7 Rf6 Qg6 Ka2 Qg5 Bc3 Ba3 Bd4 Bd6 Nc3 Rb6 Rf7 Ra6 Ra3 Ra7 Na4 Qg1 Rb3 Qe3 Nf1 Qc1 Rf5 Be7 Rf7 Bh4 Nfd2 Bg3 Rf8 Rf5 Bf6 Raa5 Bc3 Rf7 Nd6 Re5 Bd4 Ba7 Bb2 b8N Ba8 Na6 Bd4 Bb8 Nc2+ Kd1 Nb4 Ke1 Bcb7 c8B Ba1 Nc7 Ba6 Re7 Rf5 Rf7 Rh5 Rb5 Rc5 Bb7 Rc4 Re5 Bb5 Bc8 Bbc6 Ba6 Bcb7 Qg6 Bc8 Qf5 Bb2 Qe6 Ba1 Qa3+
nQ2n3/NR1r1Pq1/nN1Q1qn1/2b2N2/4p1bB/1Bkn4/KpQq1r2/3Q1R2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kf7 d4 Kf6 Kd2 b5 Kc2 c5 Kb3 h5 a4 e5 g4 h3 f5 e3 a5 h4 d6 e4 d7 e2 d5 Ke5 d6 e1N f6 c4+ Ka2 h2 a6 h3 g5 b3+ Ka3 b4+ Kb2 Rh7 a7 Na6 g6 Ne7 g7 Ng6 Qg4 Kd4 Nc3 Nd3+ Kb1 b2 Na2 c3 g8Q Qc7 d8Q Qg7 d7 Bc5 Qd1 Rb8 Kc2 b1N Kb3 c2 a8N Nc3 Bg5 c1Q Nb6 Qd2 Qb1 Nd5 Bh4 Ndc7 Nc3 Na8 f7 Rb7 Qe7 Rh8 d8Q+ Rd7 Ra2 Rh5 Rb2 Rf5 Ka2 Rf2 Be2 Qf6 Bd1 b3+ Ka1 Ndb4 Qh8 Nd5 Qd6 Qg7 Qh5 Qf6 Qb8 Ndc7 Qf8 Ne8 Nb5+ Ke3 Na7 Kd4 Qd5+ Kc3 Nf3 Qg7 Rg1 h1Q Nd4 h2 Rf1 Qf3 Qfd6 Qff6 Nf5 h1N Bc2 Qe3 Qdd1 Qd3 Ra2 Qd2 Ra5 b2+ Ka2 Ng3 Rb5 Nh5 Bb3 Nhf4 Nc4 Nd3 Rb7 Re7 Nb6 Be6 Ng3 Bg4 Nf5 Rd7 Qbc2+
n1R1q2Q/k2r1p1B/4b1RK/q2B1PQ1/q1q2p2/1NQ1Rn2/nbq2r2/Q6N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e5 Bf4 exf4 Kd2 h5 c4 d5 b4 Kd7 e4 Kc7 g4 Kb7 e5 a5 b6 d3 b5 d4 e6 a4 c5 h3 g5 a3 g6 h4 e7 h2 e8R a2 g7 h3 Re7+ Nd7 Re8 Ra7 Re3 Qe8 Ne2 Ne7 g8B Ng6 Rg1 h1Q Bh7 h2 Ng3 Qhe4 Nh1 Nh4 Bg2 Bg7 c6+ Kb8 b7 Nb6 Qg4 Be6 Qg5 Na8 Rc1 Qe5 Bd5 Nf3+ Kd1 d2 Ke2 d1N Nd2 Qe4 Nb3 Nc3+ Kf2 d3 Rab1 Ra6 c7+ Ka7 c8Q a1Q Rc2 d2 Rg1 Na2 Qc3 Rd6 b6+ Ka6 b8Q d1Q b7 Qc4 Kg2 Rd7 Qbe5 Ka7 Kh3 Qb2 Rc1 Qbc2 Kg4 Qe1 Qa1 Qa5 Kh5 Bf6 Qc7 Bb2 Kh6 Qca4 Qc3 Rg8 Qh4 Rg2 Qg5 Rf2 b8Q+ Ka6 Qbe5 Ka7 Qh8 Qc4 Qe7 Qaa4 Rg6 Qa5 Ng3 h1Q+ Qh4 Qhf1 Nh1 Qca4 Qg5 Qfb5 Rd1 Qac4 Rd4 Qca4 Rc4 Qba6 Rc5 Q6c4 Rc8
2BRbb2/Bqq1np1q/Q1P5/N3k3/KB1r2N1/2Bp1q1q/Q3N1rn/5R1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 Kc2 h5 Kb3 a5 e4 d5 g4 f3 b6 h3 e5+ Ke6 g5 h2 b7 h4 c5 f2 c6 h3 g6 d3 g7 d2 Ba6 f1Q Ka4 d4 b4 d3 b5 Rh7 b6 Nd7 b8B Ne7 g8Q Nf6 b7 Rg7 Ne2 Qc7 Qc2 d1Q Bd2 Rg2 Bb4 Ng4 Nd2 Bd7 Nc4 Be8 Ba7 Rd8 b8B Rd4 Bc8+ Kd5 Rg1 h1Q e6 h2 Qg5+ Qf5 Rf1 Ke4 Bc3 Qh7 Qb5 Qb1 Qa6 Qbb7 Qa2 Qh3 Ka3 a4 Na5 Ke5 Bc5 Qf3 Bba7 Qh3 B5b4 Qf3 Kb2 a3+ Kb3 Qh3 Ka4 Qh7 Qd2 a2 Rab1 a1Q+ Qa2 Qb2 Ra1 Qd2 Rae1 Qe3 Rb1 Ng8 e7 Qeh3 Rb2 Rg3 Rb3 Qf3 Rbb1 h1N Ra1 Bd7 e8N Rg2 Nf6 Nh2 Rae1 Be8 Ng4+ Ke4 Nc1+ Kf4 Re6 Kf5 Ne2 Ne7 Rd6+ Ke4 Rd7 Kf5 Rd8+ Ke4 Nf6+ Ke5 Ng4+
3b3q/1bkBP1NN/1b4r1/1K1bNn1n/1R1p3R/Bb1NQ1q1/1qp2B2/Q5r1 b - - 0 1 illegal: No proof kernel
1N2K3/qn1P3b/4bQ1N/2BqB1p1/4RNb1/1R1pr1Q1/n1B2rb1/b1r1Nk2 b - - 0 1 illegal: No proof kernel
1Q5n/RbnPb3/5R1k/1BBr2pN/p4nnB/1BKbqrQn/3N4/1N5q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 c5 e4 a5 h4 g5 d4 f5 Kd2 Kf7 d5 Kg7 h5 c3+ Kc2 f3 b6 c4 e5 f4 d6 f2 e6 f3 b5 a4 e7 g3 e8B g2 b7 Ra5 d7 Nh6 b6 Rd5 Bd3 f1N Bd2 f2 Qg4 Qe7 Nf3 g1N Be3 Nf7 Qg3 Kh6 Nfd2 Na6 b8Q Nc7 b7 Nh3 Bc5 Nh2 Rf1 Qe3 Ra3 Bd6 Rb3 Be7 Rb5 Rf8 Ra5 Ng4 Ra7 Nh8 Bf7 Qf3 Be6 Qe3 Bg8 Rf3 Be2 Kg7 h6+ Kg6 h7 Kh6 Kc1 c2 Kb2 c1N Bf7 Ng6 h8N Nd3+ Kc3 Ndf4+ Bd3 N6e5 Be6 Nf7 Ng6 Nh8 Rc1 Ng2 Nf4 f1B Nh5 Be2 Rf1 Ngf4 Kc2 c3 Bb5 Rf5 Bb3 Rd5 Qa8 Bc4 b8B Bb7 Rf2 Na6 Bbd6 Nc7 Qb8 Be2 Kc1 c2 Kb2 Bd3 Rf1 Qg1 Kc3 Qh1 Bf2 Nfg6 Bdc5 c1Q+ Kb4 Qe1 Kc3 Qe6 Qh2 Qe1 Bh4 Qe3 Qg3 Ngf4 Re1 Qe6 Re5 Qb6 Rf5 Qe6 Rf7 Qe3 Rf6+
1k1QqNn1/2p2Bq1/QB3R2/p5Qq/3NR3/2q1PQbr/K1Nq2r1/3bb1n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 g4 a5 d4 h5 Kd2 f5 Kc2 c3 Kb3 c2 e3 f3 d5 f2 b6 f4 d6 h3 b7 h2 g5 f3 g6 h4 g7 h3 b5 Qe8 b6 Nc6 b8Q Nd4+ Ka2 Ne2 Ba3 c1B b7 Bd2 Kb3 Be1 Bg2 f1Q Bc5 f2 Nf3 Qg1 Ra4 f1Q Ka2 Qff2 Re4 Be7 Bb6 Bh4 Qa7 Bg3 b8Q Kc6 Qa6 Bg4 Qd8 Rh6 Qc4+ Kb7 d7 Rh7 Qg5 Kb8 Nd4 Qf6 d8N Qgf2 Qe6 Ng1+ Qe2 Rh6 Na3 Rg6 Nf5 Qc3 Nc2 Ra6 Qf3 Qfd2 Nd4 Ra8 Qf1 Bd1 Qef7 Ra6 N8e6 Rh6 Nf8 Rh4 Bc5 Rg6 Bb6 Nf3 Q1c4 Be5 Bf1 Nf6 Qf4 Rg5 Rg1 h1Q Be2 Qg2 Bd3 h2 Qa6 h1Q Rf1 Ng1 Bc4 Qg3 Bb3 Qhf3 Qe7 Rh3 g8Q Qfh5 Qg6 Bd6 Bf7 Ng8 Qg4 Be5 Rf6 Bd6 Qf3 Qe5 Rff4 Rg2 Qgg5 Qg7 Rf6 Bdg3 Qd8+
Q1n3R1/1Bp1k1N1/2Pq1nn1/4R1Bb/5nRn/1rqrp3/2bBQ1B1/2r1N2K b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Bg2 Bh6 Bh3 fxg4 Bf1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bf5 Ne2 Be6 Ng1 Bc8 f4 e5 a4 b5 d4 h5 c4 g2 Kf2 g3+ Ke3 b3 c5 b4 g6 h4 g7 h3 c6 b2 f5 b3 a5 h2 d5 Rh3 d6 Ne7 g8B Nd7 a6 Nf8 a7 Nfg6 f6 Rb8 a8R Bg4 Qd3 Bh5 Qd2 Nc8 Ne2 g1N Be6 g2+ Kf2 Rd3 R1a4 Nf3 Ng3 g1N Kg2 e3 Na3 b1N Qe2 e4 Bd2 b2 Nf5 Nh3 Nc2 Nc3 Ne1 b1B f7+ Kf8 d7 Bc2 Ng7 Nd5 R8a5 Nf6 Rg1 h1R Re5 Rbb3 Rd4 Qe7 d8B Qa3 Bc4 Qd6 Ba6 Nfh4+ Kg3 Rh2 Bg2 Rh1 Bb7 Nhf4 Rb4 Ne8 Bg5 Nf6 Rf1 Rg1 Rf3 Rf1 Kh2 Rg1 Rg3 Rf1 Qf2 e2 Rg4 e3 Ra4 Qe6 Ra8 Ke7 Rb8 Nd6 Rg8 Nc8 Nf3 e1Q Qe2 Qa1 Ne1 Qd4 Nf3 Ra1 Ne1 Rc1 Kh1 Qb2 Ne8 Qc3 f8Q+ Kd8 Qa3 Qe7 Qa8 Qd6 Rc5 Ke7 Ng7 Nh8 Rb5 N8g6 Re5+
r6b/2p1P3/B1NbBq2/R1bp2N1/q3n1rB/2QQ1b1n/1RnR1bBk/5K2 b - - 0 1 illegal: No proof kernel
KR1B2q1/NPN5/2n4q/qqrb3R/QQb1k2p/7n/1B1bp3/N1q2BrN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Kf6 g4 Ke5 c4 a5 f3 d5 b6 h5 b7 d3 Kc3 e3 f4+ Ke4 f5 e5 c5 d2 b5 a4 Kb4 d4 f6 e2 f7 e1Q g5 h3 b6 h4 Kb5 d3 c6 h2 c7 a3 g6 a2 g7 Nf6 g8N Bh6 f8N Qe2 Bb2 Be6 c8Q Nc6 b8B Nh5 Na3 Nf4 Bc7 Nh3 Qb7 Rc8 Ne7 Rg8 Nc2 Bc4+ Kc5 Rg6 Ne6 Qg8 Bd8 Rg5 Rb1 a1Q Nc7 Qa5+ Kd6 Qh5 Ne2 Rg1 Na1 Be3 Qa4 d1Q Qb8 d2 Rc1 Qb3 Ng3+ Kf4 Rc3 d1Q+ Rd3 e4 Rd5 Qdc2 Kd7 Qh6 Rh5 Qbb5 Qb7 Nd4+ Nc6 Bd2 Qb8 e3 Qb7 Qbg5 Na7 e2 Qb8 Qc1 Qb7 Ne6 Kc6 Ke3 Qb8 Qgb5+ Kb7 Nd4 Ka8 Nc6 b7 Rg2 Rg1 Kf3 Nh1 Ke4 Qb4 Rg7 Rg2 Rg6 Rf2 Rg1 Rf8 Ne7 Ne8 Rc5 Nc7 Nc6 Qc8 Kd3 Qg4 Ke3 Ng3 h1B Qa4 Bhd5 Nh1 Bb3 Qgb4 Bbc4 Be7 Kd3 Rb8 Ke4 Bd8
K3B1Rb/1pb2NnR/br2N1B1/pb2N2Q/7q/B5Nn/1n1qQP2/1b2r2k b - - 0 1 illegal: No proof kernel
2N1Nb1R/1p1p1bb1/1B2Q3/qQ1N3B/5r2/knNB1PR1/2bbrnK1/2q4r b - - 0 1 illegal: No proof kernel forced: wxLB
1rn2N2/P2b1r2/Kb1qN1b1/3q3k/nb3BbR/pQ6/pQBBn3/1N3B1R b - - 0 1 illegal: No possible last move, all moves rejected
q1k5/P3R1b1/1N6/qp5N/Npq1RbNn/2b1n1BQ/r2bb1BK/1r1R2Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 c5 e4 g5 h4 b5 a4 f5 d4 c4 a5 f3+ Kh2 f4 d6 c3 h5 f2 a6 c2 d5 f3 h6 Bg7 e5 Qa5 h7 Nf6 Bf4 c1B Ra2 Nc6 Bg3 Nd4 Nc3 Bf4 Bg2 f1Q Nge2 f2 Na4 Nf5 Nec3 Qc4 Re2 f1Q Re4 Qf3 Qg1 Nh4 e6+ Kd8 Nb6 Bd7 Nba4 Kc8 e7 Bd2 e8N Bf5 Rf4 Bd3 Re4 Be2 Re7 Rg8 h8N Rf8 Ng6 Qfe4 Nf4 Rf7 Be1 Ra7 Nh5 g3+ Kh3 Ng4 Nef6 Ne3 Ng4 Rf1 d7+ Kb8 d6 Qa8 Bf2 Rb1 Nd5 Bdc3 Ndb6 Bd2 Bd5 g2 Bg3 Bdc3 Kh2 Bd2 Qc1 Bdc3 Re1 g1B+ Kh3 Bh2 Bg2 Bd2 Rd1 Bdc3 Rd4 Bd2 Qg1 Bc3 Rde4 Bd2 Be1 Bf4 Bg3 Bgc3 Kh2 Bg7 Nf2 g4 d8Q+ Qc8 Qd7 Qc4 Qe6 Bdc3 d7 Bd2 Kh1 Bdc3 Bh2 g3 Qh3 Kc7 R7e5 Kb8 d8R+ Kc7 Rd1 Kb8 Nd7+ Kc8 Re7 Qc5 Nb2 Bcd4 Qf1 Qac7 Ng4 Bc3 Bf3 g2+ Kg1 Qc4 Bg3 Nd5 Kh2 g1B+ Kh1 Bb6 Kh2 Bbe3 Bg2 Bed2 Qg1 Ne3 Qf2 Rb7 Qg1 Rb6 a7 Ra6 Qf1 Ra2 Qg1 Qb6 Na4 Qa5 Ndb6+
6r1/p1rR3Q/2r2nQ1/1qQ1kBqN/4B1bb/3pR2r/1N1rb2P/KB2n1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Ke6 c4 f5 Kc2 d5 Kb2 g5 e4 d3 e5 g3 c5 d4 b6 g4 c6 g2 b5 g3 c7 f3 b7 f4 b6 d2 Na3 f2 Nh3 g1R Qg4+ Kd5 e6 d1R e7 g2 e8B f3 Bg6 Nc6 b8Q Be7 b7 Nf6 Be4+ Ke5 Qg6 Nb4 Bfd3 f1Q Be3 f2 Bb1 Nc2 Nf4 Rd2 Nh5 Bg4 Qc8 Qb5+ Ka2 f1B b8Q Bd3 Qbb7 Rc1 Re1 g1R Rd1 Rg3 Bg1 Rh7 Re1 Rh3 Re3 Bde2 Qcf5+ Kd6 c8B Qda5 Qf2 Ke5 Bcf5 Rg8 Qd7 Bd8 Qdg7 Rh6 Q7h7 Be7 Be6 Qd8 B6f5 d3 Nc4+ Kd4 Nb2 Ne1 Rf3+ Ke5 Qc5+ Nd5 Re3 Bh4 Bc2 Qg5 Rb1 Bd1 Ka1 Bde2 Bd1 Rc3 Bc2 Rc4 Rc1 Rc3 Bb1 Rc4 Qa3 Rc7 Rc4 Nf6 Rd4 Rc4 Rd7 Rc6 Qh8 Rh7 Qf8 Re7 Qhh7 Rf7 Rd6 Rb7 Rd7 Rbc7 Qc5+
rrk3N1/p1Q1R2q/6N1/bb3pPB/1Rb2Qq1/Bq6/Q2nnqB1/K4B1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 c4 d5 Kc2 Kd7 g4 f5 b4 f3 Kb2 f2 e4 d3 b6 d2 e5 h3 c5 d4 b7 d3 b5 h2 g5 h4 e6+ Kc7 e7 h3 e8B Rh5 c6 Nf6 Nf3 Be6 Qc2 d1Q Nc3 d2 Rb1 Qd4 Ne5 Bc4 Ng6 Ne4 Ka1 Bb4 Ba3 Qg4 Qa2 Ba5 Rb4 Rh8 b6+ Kd8 Bg2 f1B Rg1 Qe3 Nd5 h1Q Nf6 h2 Ng8 Qf2 Bf7 Bfd3 c7+ Kd7 Re1 Nc6 b8Q Nd4 b7 Ne2 c8B+ Kd8 Qb1 d1Q Qf4 Qb3 b8Q Nd2 Qa2 Bb5 Bf1 Bdc4 Bb7+ Kd7 Qbe5 Rb8 Bbg2 Kc8 Bh3 Qb7 Bhg2 h1Q Be8 Qbh7 Qd6 Ng3 Re7 Ne2 Nh4 Qd3 Bh5 Qb3 Ng6 Ra8 Qc5+ Kd8 Nf6 Rf8 Ng8 Re8 Re4 Kd7 Re3 Reb8 Re7+ Kd8 Qb6+ Kc8 Qbc7+
8/pQ3B1n/3n3p/1P1rnqBR/3N2k1/K4nqr/3bRQr1/BNRbn2B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Kf6 e4 Kg5 c4 d5 Kc2 f5 Kb3 d3 e5 d2 b6 d4 e6 d3 c5 f3 e7 f4 e8B f2 b7 h3 c6 h2 c7 f3 Ra2 Nc6 b8B Qd6 Be2 f1N Ra6 f2 Ka2 Bh6 b4 Ne5 b5 Nf6 Qb3 Kf4 g5 Bg4 Bb2 d1R c8Q Nd2 g6 f1Q g7 Ndf3 g8R d2 Rg5 Bh5 Rf5+ Kg4 Nh3 Qf2 Rf1 h1N Bc7 Ng3 Bd8 Nge4 Qf7 Qc7 Ka3 Nd6 Bc6 Qg3 Ba1 Qd7 Qc7 Bf4 Be7 Rag8 Qb7 Rg5 Rh1 Rg1 Be4 d1N Bc4 Bd2 Nf4 Rg2 Ne6 Nb2 Rc1 Nbd3 Nd4 Nde1 Qf8 Qc8 Bf7 Nh2+ Nf3 Bf4 Bb3 Bg6 Qd7 Nef7 Nh4 Re2 Bh1 Rg2 Qb7 Rh5 Rfc5 Bc2 Kb4 Bd1 Ra2 Qd7 Rf2 Bd2+ Ka3 Re5 Nf5 Qc8 Qe8 Nhf3 Nd4 Rh5 Re2 Rh3 Nc3 Rf8 Rh5 h6 Nb1 Nh7 Bc4 Rg8 Bd8 Rg5 Qe3 Rc5 Qf2 Qf5 Be6 N7e5 Bf7 Rd5 Bg5
1n3BR1/KBbpqn1b/1BQbb3/p1Nb4/Bkb1QN1r/8/R3QP2/3b1r2 b - - 0 1 illegal: No proof kernel
R5rq/n2K4/nN6/1r5b/RN1b2Bb/3QkBbP/1BQp1pn1/1qR1rB2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 h3 d5+ Kb3 a5 Ka4 f5 c4 g5 c5 g3 e3 f3 c6 f4 c7 g2 b6 g4 Kb5 d3 b7 a4 Kb6 f2 b5 d4 Qe1 a3 Ne2 g1Q Bg2+ f3 Qf1 g3 Qe1 f1N Bb2 d2 Qc1 d1R Qc2+ d3 Nf4 a2 Na3 Re1 Nd5 Ne7 Nb4 Bg4 Nc4 Na6 b8Q Nc8+ Kc6 Bd6 b6 Rh5 b7 Qh8 Nb6 Rb5 Qa7 Bf4 b8R Bh5 Kd7 Bg5 Rc1 a1B Rh2 Bh4 Qb7+ Kf5 e4+ Kf4 e5 Ke3 e6 Na7 c8B d2 e7 f2 e8B Qh1 Bf3 g2 Qd5 g1B Rg2 Bh2 Rg4 B2g3 Bg6 Qg1 Bd3 Qh1 Nc6 Qg1 Ra4 Qh1 Nb4 Qg1 Ba3 Bd4 Bb2 Qh1 Bg4 Qe4 Bc4 Qd3 Bb7 Qb3 Rc8 Qa2 Qd6 Qb1 Bbf3 Rb8 Rc7 Rf8 Rc8 Rg8 Qdg6 Kf4 Bce2 Ne3 Ra8 Ng2 Bf1 Ke3 Qgd3+
Bbr1q2b/Q5BK/1Q4R1/4nN2/q4bb1/k1p1Pr2/N1p3N1/QRQq1n1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 h4 Kd6 b4 a5 d4 f5 b6 c5 b7 g5 b5 f3 Kg3 f2 d5 c3 b6 a4 h5 c4 h6 Kc5 d6 Kb4 e3 f4+ Kh2 f3 Kg3 a3 h7 a2 d7 c2 Qd3 Ne7 Bg2 f1Q Bh3 f2 Qf5 Bg7 Nf3 Rf8 h8Q Qe8 d8Q Nd7 b8N Qd1 b7 Ne5 Bg2 Be6 Rg1 f1N+ Kf2 Ka4 Nc6 Rc8 b8Q Rf6 Qg6 Nf5 Qdb6 N5g3 Ne7 Rf8 Qh1 Bh8 Bb2 Bf5 Bd4 Rf6 Nc3+ Ka3 Rc1 a1Q Na2 c3 Ne1 Rf8 Bb7 Be6+ Kg2 Rf3 Ba8 Bf5 Rb1 Bd7 Qh4 Nh1 Nf5 g3 Kh3 g2+ Qg3 g4+ Kh4 Be6 Kh5 Bd7 Qf2 g3 Kh6 Be6 Kh7 Bd7 Nd6 Bh3 Nf5 Bg4 Nb4 Qa2 Qd2 Qb3 Qg7 Qba4 Qga7 Nf2 Rh1 g1B Ng2 Bh2 Rg1 Nh1 Qaa6 Nc6 Na2 Ne5 Ne1 g2 Q8a7 Nc4 Bg7 Bb8 Qaa5 Ne5 Q5a6 Nhg3 Rh1 g1B Ng2 Bf2 Rh6 Nh1 Rg6 Bg3 Qe1 Bf4 Qd2 Nc4 Qc1+ Nb2 Qab5 Qe2 Qe1 Nc4 Qd1 Ne5 Qe1 Qa5 Qd2 Qd1 Qb2+ Ka4 Qa1 Ka3 Ne1 Qa6 Ng2 Qaa4 Qc1+
1b1n1N1K/Qqn1k3/R3N3/Br2B1b1/N6B/1pPp4/2B4b/RQr1qrqb b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 g5 Kd3 d5 f4 e5 h4 b5 a4 b3 a5 b2 c3 g3 h5 b4 h6 b3 h7 g4 f6 g2 f7+ Ke7 a6 g3 a7 e4+ Kd2 d3 Ke3 d2 Kd4 e3 Ke5 d4 f5 e2 Ra6 e1Q+ Ne2 g1B Qc2 d1Q Na3 b1R Bg5+ Nf6 Bh4 g2 Nc4 Bh6 f8N Qd7 Nb6 Qb7 Na4 Rc1 Qb1 Bf2 Rg1 Bg5 Rh1 Rg8 h8B g1B Bg7 Bfe3 Nf4 Bh2 Bd3 Nd5 Bc2 d3 Rg1 Nc7 f6+ Kd8 f7 Ke7 Rh1 Bf5 Bh8 Be4 Rf1 Bc6 Kf5 Bb6 N4e6 Bh1 Be5 Nc6 Rg1 Rc8 a8Q Nd8 Qa7 Rb8 Rf1 Rh8 Kg6 Be3 Kg7 Bef4 Rg1 Rh6 Rf1 Rf6 Kh8 Qg4 Nd7 Qg1 f8B+ Kf7 Bc5 Ke8 Bb6 Ke7 Ndf8 Bfg3 Rf4 Rf5 Rd4 Rf1 Ba5 Qbe4 Nb2 Rb5 Ra4 Qb7 Ra1 Bf2 Qa8 Ba7 Na4 Bb8 Qa7
3BKQR1/1N4N1/q1R1Bb2/Rn4r1/1R3NP1/nq1Q1rq1/bb2p1bp/1kr5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Ke6 c4 Ke5 b4 a5 b6 d5 b7 h5 c5 e3 Kf3 h3 c6 d3 b5 Kd4 Kf4 e5+ Kf3 e4+ Kf4 e2 c7 e1Q f3 a4 b6 d2 Qc2 d1Q Be2 h4 Qc6 a3 Nd2 h2 Qg6 Kc3 Ke5 Kc2 f4 d4 f5 h3 f6 a2 f7 d3 Ba3 e3 Bb2 Be7 f8Q Na6 b8R Qd6+ Ke4 Bf6 b7 Nh6 Bc3 Nb4 Bb2 Nf7 Nf1 d2 Ng3 Be6 c8N Ra3 Bc4 e2 Nf5 Qa6 Ncd6 Rg8 Ng7 Rf3 Re8 Qg3 b8R Qb1 Nb7 d1R Rbc8 Re1 Rc6 Rc1 Be5 Qb3 Bc7 Kb2 Bd8 Nc2 Qf5 Na3 Bd5 Bc8 Be6 Bd7 Qd5 Bc8 Qc4 Nd6+ Kd5 Ndb5 Kc5 Rb1 Qd3 Rc1+ Bc4 Bf5 Kd5 Be4+ Ke6 Bd5+ Kd7 Bf7 Ne6 Rg5 Ng7 Bh5 Bg8 Bf7 Re4 Bc4 Ke8 Be6 Rb4 Bd5 Be6 Bc4 Qd7 Kc2 Rb1 a1B Qdd6 Bab2 Ra1 Nb1 Raa4 N1a3 Ra5 Kb1 Qd5 Qc2 Qdd6 Ba2 Qd3 Rff5 Nf3 Rf4 Rf1 h1B Ne1 h2 Ng2 Rf3 Nf4 Bg2 Rd1 Ka1 Rd2 Qb3 Rdc2 Kb1 Rc8 Rf2 R2c6+ Rc2 Qh8 Bfe5 Bb6 Nc4 Kf7 Nca3 Re8 Bec3 Bd8 Rf3 Rf8 Bf6 Ke8 Ka1 Qg8 Rc1 Qf7 Qc3 Rg8 Qb3 Qd1 Kb1 Qf8 Bf1 Qdd6 Bg2 Qd3+
2k3R1/K2n1b1r/NQ1rN1B1/8/qqq1NRpq/4b1P1/1pn3N1/2RQnB1b b - - 0 1 illegal: No extended proof kernel
2B2r1N/3B1R1n/nB4rn/2q4N/Bbk1qP1R/3b4/1Rpq1rpK/3rQ2Q b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 h4 Kd7 d4 Kc6 f4 Kb5 Kf2 e5 Kg2 g5 a6 c5 a3 g3 d5 g4 d6 e3 d7 e2 h5 e1R a7 e4 h6 e3 h7 e2 Ra2 c3 a4+ Kc4 a5 b5 a6 b4 Ba3 b3 Nh3 b2 Qc1 c2 Ng5 Rd1 Nc3 b1Q Nd5 Nh6 Nf7 Be7 Qe3 c1Q Rb2 Rf8 h8Q Qe4+ Kg1 g2 Nf6 Qd2 Nh5 Q8a5 d8R Bf5 Kh2 g1R Bh3 e1N+ Qf2 Rf1 Rd7 Rg8 Qh7 Rg6 Nh8 Bd6 Rf7 Nf3+ Kg3 Qc7 Qe1 Ng5 Bb4 Qc8 Ba5 Rf2 Bb6 Bf8 Bg2 Qcc6 Rh4 Bd6 Kh2 g3+ Kg1 Bf8 Bh3 g2 Kh2 Be7 Qg7 Nh7 Qg8 Bc8 Bd7 Qcd5 Ba4 Bg4 Qc8 Be2 Qh3 Bd3 Bd7 Nc6 Bc8 Nb4 Bd7 Rd8 a8B Rf8 a7 Na6 Bb7 Kc3 a8B c4 Kg1 Bb4 Bbc8 Qc5 Bac6 Kd4 Ba4 c3 Qh2 c2 Qh1 Kc4 Kh2
1N1qbQ1R/bN6/1QRN1b1B/n1Rrq1r1/2Bp1nr1/3P2r1/1Kp3n1/R3k3 b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 axb5 g5 c4 gxh4 c5 Nc6 Kf2 Nd4 Ke1 Nc2+ Kf2 Bxc5+ Kf3 Bd6 Kf2 Bf8 b4 Ke7 g4 Kd6 e4 Ke5 Ke2 Kd4 b6 a5 g5 h5 g6 f5 b7 c5 b8Q d5 e5 a4 b5 c4 g7 a3 d3 h3 Kd2 f3 b6 a2 e6 f4 b7 f2 e7 f3 e8N h2 Nc7 h4 Ba3 c3+ Kc1 Ke3 Bb4 h3 Ba3 Nb4 Qa7+ Bc5 b8R c2 Qb6 Nc6 Qb4 Rh5 Bg2 f1N Bb2 Kf2 Bf6 Ba7 Be5 Na5 Qd6 Ne3 Ne6 Rg5 Rb6 Nf6 g8R Nh5 Rc6 Bd7 Bf6 Nf4 Na3 Be8 Ne2 Rg4 Re1 h1Q Qf8 h2 N2d4 Rb8 Be5 Rb5 Rh8 Qg1 Nc5 h1R Bd6 Rh5 Nc4 Rhg5 Nb7 Qh2 Bh1 Neg2 Re5 Rc5 Kb2 Rg3 Qb1 Rb5+ Kc1 Rb4 Rf5 Ke1 Qb2 Ra4 Qb6 f2 Bb8 f1R Ncd6 Nh4 Bf3 Nhg2 Bh5 Rh1 Bf7 Qh5 Bg8 Qe2 Bc7 Rhh5 Be6 Qe5 Kb2+ Kf2 Rc3 Rc4 Nc6+ Rd4 Rc4 R5g4 Nb8 Rhg5 Kc1 Ke1 Rc6 Qe7 Bd8 Qc7 Bf6 Qc8 Bg7 Qd8 Rb1 a1B Bh6 Bc3 Ra1 Bb4 Ne4 Be7 Ned6 Bf6 Bf7 Ra4 Be6 d4 Bc4 Rb4 Qc7 Rb5 Qb6 Qe6 Rfc5 Qd5 Rc8 Qe5 R5c6 Rd5 Kb2+ Kf2 Rc5 Ke2 R8c6 Kf2 Ra4 Ke1 Ra1+
1rN1R1qR/N1NB1Q2/6nb/1r1n3R/PkrbbQ1B/4p2K/rq3q1p/7N b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 g4 Kd6 f4 b5 Kf2 h5 Kg2 e5 f5 c5 g5 c4 a3 h3+ Kh2 h4 f6 c3 g6 b3 f7 b4 g7 c2 Bh6 c1R Ne2 e3 Qc2 b2 Qf5 e4 Qh5 b3 Nbc3 b1Q Qg6+ Nf6 g8N b2 Ne7 Bb7 Ng3 e2 Bg5 e1B Bb5 e3 Bd7 Bh6 f8Q Nc6 Qgf7 Ne5 a4 Ng6 Ra2 Rb8 Ra1 Qf5 Ra2 b1Q Nc8+ Kc7 Rd2 Qb2 Rf2 Bc6 d6+ Kb7 d5 Ka6 Rc2 Ka5 Nb5 Kb4 Nba7 Rb5 Rg2 Bd2 Rf2 Qfc2 Rf5 Ra1 Re5 Ra2 Re8 Qf5 Rb1 Qf1 Nh1 Qf3 Rd1 Bc3+ Rd2 Bd4 Rf2 Ne4 Qf4 Nc3 Q8f7 Qe7 Rg2 Qf8 Be7 Qg8 Bd8 Ne2 Rg5 Ba8 Rh5 Nc3+ Kg1 Qfe2 Bg5 Qec2 Bf6 h2+ Kf1 Ne2 Kg2 Nc3+ Kh3 Bb7 Be6 Qe2 d7 Qf2 d6 Be4 d8N Nd5 d7 Qg1 Bg5 Qgf2 Kg4 h3 Bh4 Rc5 Bf5 Rc2 Ne6 Rc4 Ng3 h1R d8R h2 Kh3 Rhc1 Nh1 Rc5 Bg4 Rb5 Nc7 Rc4 Bd7 Rh7 Q7f5 Rf7 Qe6 Rf6 Qf7 Rfb6 Rg5 Rb8 Rh5 Qh7 Rh8 Qg8 Re8
5n2/2q1BkBQ/N6Q/1nQ1R1pr/3NB2r/q1Pp3q/5r1r/nB1Kbb1R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 d5 h4 f5 b4 g5 e5 a5 b6 a4 e6 g3 h5 f3 e7 g2 b5 f4 h6 a3 h7 a2 b7 f2+ Kd2 f3 b6 Ra4 Qe2 Nh6 Qa6 Nf7 Rh6 Bh3 Bd3 f1Q Ba3 f2 Nf3 g1Q Nc3 Qg3 Ne4 Nd7 b8Q Nd6 b7 Kf7 Nc5 Qc7 Qba7 Nb5 Bb2 Qfg2 Rh1 a1N Re6 f1R+ Re2 Bg7 Bc3 Nf8 b8Q Na3 Qb1 Nb5 Bb4 Q2h2 Q7b6 Bg2 Qaa7 Qhh3 Na6 Be5 Ba3 Bd6 Re6 Bb4+ Ke2 Be1 c3 Qgd6 Re5 Qb4 Qc6 Qb3 Bd6 Qa3 Qac5 Rc4 Qd1 Rb4 Bb1 Rb2+ Qc2 Ra2 Ng1 Rf6 Nf3 Bf1+ Kd1 Rb2 Kc1 Rf4 Qe4 Rh4 e8B+ Kf6 Kd1 Rh2 Be7+ Kg7 Bd7 Kf7 Q6d6 d3 Bf5 d2 Qdb6 Rg8 h8B Rg6 Bg7 d4 Qd3 Rgh6 Qbc6 R6h5 Qh6 Nb3 Kc2 d1R+ Qe2 Rd3 Qf2 Re3 Kd1 d3 Nd4 Rf3 Be4 Rf5 Qf4 Na1 Qg4 Rff2 Qf5+ Kg8 Qfh7+ Kf7 Qb4 Ne6 Qd6 Nf8 Qc5
rr1k2N1/3nb1B1/2Qn3R/1N3bp1/4P1QR/rr2Q2b/pQqB2B1/K1nq4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 b4 a5 h4 f5 c4 d5 Kc2 g3 Kb2 a4 e4 a3+ Ka2 f3 b6 f2 b5 f4 b7 d3 b6 d2 c5 f3 h5 g2 c6 d4 c7 d3 h6 Ne7 h7 Bf5 c8Q Nd7 Ne2 g1N Nec3 Ne2 Qc6 Qc7 b8Q+ Nc8 b7 Kd8 Rh6 Be7 Bg2 f1R Nb5 f2 Qa7 Nd6 N1c3 Qc8 Kb1 a2+ Kb2 Rg1 b8Q f1B Qe3 Rh1 Rb1 Rh3 Ka1 Re8 h8B Ra3 Bb2 Nc1 Qg4 d1R Bg7 d2 Nd5 Re1 Bbd4 d1Q Bc3 Re2 Rh4 Rb2 Bd2 Ra8 Qbb7 Rb3 Nf6 Rf3 Ng8 Rg3 Qca6 Qcc2 Qac6 Rba3 Rb4 Rf3 Ra4 Rh3 Ra6 Rb8 Qd4 Rhb3 Qba7 Ra8 Qb2 Rf8 Qe3 Re8 Bh1 Bh3 Bg2 Nc4 Qh6 Kc8 Nc3 Kc7 Rg6 Reb8 Nb5+ Kd8 Re6 R8a5 Qhf6 Raa8 Qfc3 Nd6 Qc6 Nc8 Rg6 Nd6 Rgh6
5BnN/3Q1Brk/1R2Nr1Q/1rB1Rpn1/2b2K2/n3R3/1qb2pPR/1qb2r2 b - - 0 1 illegal: No possible last move, all moves rejected
r5r1/1QQ2B1b/3n1q2/1kq1QpQP/4pr2/2q2B1R/n2N1BK1/2bRqnN1 b - - 0 1 illegal: No proof kernel
brr1R1QK/1N2nB2/1r6/1q2p3/2Qb1B2/nNQnn2p/4q2P/1qNkRN2 b - - 0 1 illegal: No possible last move
q1Q2q1B/nB3qn1/1nQ2r1R/4p3/2N2N2/prrNR1P1/K4Qrb/3k1b1N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 d5 b6 a5 b7 h5 f3 h3 c5 h2 c6 e3 f4+ Ke4 f5 e2 f6 e1R f7 h4 c7 d3 Ne2 d4 Nf4 h3 Ka3 a4 b4 d2 b5 Ke3 b6 d3 Ne6 Rh6 Rg1 h1R Qb3 h2 Nc5 Bh3 c8N Re2 Qb4 Nd7 b8N Ngf6 b7 Nh5 Nd6 Ng7 Ka2 a3 Qc3 Rf6 Nc6 Rc8 b8Q Nb6 Bb2 d1Q Nde4 e6 Qb7 Bd6 Ne5 Qf8 Qc6 Rd2 Qc4 Qf3 Ng6 Rc2 Ng3 d2 Qa6 d1N Nf4 Rc3 Qc4 Rb8 Nd2 Kf2 Qa6 Ke1 Qac8 Qd5+ Nc4 Qh5 Ne3 Kd2 Bc4 Qh7 Rf1 Rg1 Ba6 h1Q Re1 Rc4 Nfd3 Rh6 Ng4 Ne8 Q6d7 Qfh8 f8Q Na8 Rf1 Rb3 Nde5 Nb6 Rf6 Qe7 Qf7 Qhf8 Nh5 Ke2 Ncd3 Rc1 Nf3 Bh2 g3 Bf1 Nfe5 Qa8 Bb7 Rg2 Qdc6 Rg6 Rb1 Rc2 Ngf2 Nc3+ Ka1 Qc7 Nh1 Nb5 Ka2 Na7 Re1+ Kd2 Re3 Kd1 Nc4 Qd7 Qg7 Qdf7 Qh8 Rh6 Rg6 Rc1 Qf6 Rcc2 Qf2 Rc1 Bh8 e5 Rd6 Rcc3 Rf6 Ng7 Nhf4 Rg6 Rf5 Rh6 Rh5 Rf6 Rh6
1r1n1Bb1/1q1n4/1Q3NNr/1nnBp3/p1KB1bb1/3Q1RN1/P2q4/Rr1N2k1 b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b3 g5 b4 gxh4 bxc5 d5 Qe2 dxc4 Qf3 Qd3 Qd1 Qd8 Ke2 Kd7 g4 Ke6 d4 Kd5 f4 e5 c6 h5 f5 a5 f6 b5 f7 c3 c7 a4 g5 h3 g6 h2 g7 e3 Kd3 c2 Be2 h4 Nd2 b4 Nb3 h3 Ba3 c1R Qd2 Rb1 Qc2 Bg4 c8N Nh6 g8N Nd7 Qd1 Rb8 Nc1 b3 Qd2 b2 Bf1 e2 Bc5 e1N+ Kc3 Ke4 d5 Nd3 Nge2 Kf3 Bd4 N3c5 d6 Rh7 Rg1 h1Q Ng3 h2 Nd3 Qg5 Qc2 Qd2+ Kc4 Qhg2 Nf2 h1B Nce7 Bg7 f8B Nf7 Nd1 Bh6 Bc3 Nd8 Bd4 Bf4 Nf6 Rh4 Ng6 Rh6 Ne3 Kf2 Qd3 Qa8 Bg2 Qb7 Bd5 Bhf3 Rc1 Be6 Rh1 Bfg4 Rh3 Kg1 Nd1+ Be3 Rh2 Bg8 Rf2 Bf4 Nc3 Re1 Nd1 b1N Rf3+ Qf2 Be7 Nc3 Bf8 Nb5 Nfe4 Nf7 Nb2 Rb1 Nd1 Nf6 d7 Qe3 d8Q Nfd7 Qf6 Nd8 Qb6 Qf2 Nf6 Qe3 Rf2 Qd2 Rf3+
q1b4n/rb3n1Q/5QRb/1n1P2q1/2KR4/1BBnNp1Q/rN3k1p/2BB1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 Ke2 Ke5 g4 Kd4 d3 f5 b6 a5 b5 h5 b7 c5 b6 f3+ Kd2 a4 g5 f2 e5 a3 e6 h3 e7 a2 e8B f4 g6 h2 g7 h4 Be2 f1Q Nc3 h3 Qe1 Nc6 b8B Rh7 b7 Qg5 Qh4 Ne5 B8h5 Nf7 Bg6 Ne7 g8Q Bh6 Na4 c3+ Kc2 c4 Nb2 Ra7 Bd1 Rg7 Bgh5 Ng6 Qh7 Ngh8 Rb1 a1Q Be5+ Kc5 b8Q Ra2 d4+ Kd5 Qg8 Ke4 Ne2 Rh7 Rg1 h1B Qg7 h2 Qd6 Bg2 Bg6+ Kf3 Ng3+ Kf2 Qh3 Bgb7 d5 f3 Qgf6 Rg7 Qc7 Rh7 Nf5 Rg7 Bcf4 Rh7 Ne3 Rg7 Kc1 c2 Kd2 c1N Kc3 Nb3 Bgc2 Nd4 Bb3 Nb5+ Kb4 c3 Bd4 c2 Bc3 Qfg2 Kc4 c1N Qcd7 Nd3 Qdf5 Ra8 Qh7 Qf1 Rg4 Qa5 Ra1 Qa7 Ra6 Qb8 Re6 Ra2 Re4 Qa8 Rd4 Ng6 Nf5 Ngh8 Bc1 Rg6 Ne3 Ra7 Qf5 Rga6 Qf6 Ra2 Rg3 Qh5 Rg7 Qg5 Rg6
q3Br1n/n4NK1/5Rb1/k2PBBb1/3q4/bQ2pp2/nB4Qr/1r2NNnR b - - 0 1 illegal: No proof kernel
8/1R1KnR1Q/R5r1/BnP3p1/rbNN1Q2/qp1n1RbB/1r1qb2Q/1kb5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 f4 d5 h4 e5 c4 g5 a4 g3 f6 b3 f5 d3 f7 g2 a5 d4 h5 b2 f6 d2 h6 d3 a6 Bb4 f8Q Nd7 a7 Ne7 f7 Rg8 h7 Nc5 h8Q Qd6 Ra2 Rg6 Qh4+ Bg4 Qh3 Be2 Qe1 d1Q Ra4 d2 Qfh6 Nd3 Nf3 g1B f8R Be3 Na3 b1R Bg2 Rb2 Qeg3 Qb3 c5 d1N Nc4 Qa3 Bd2 b6 Qhh2 Nc3+ Ka6 b5+ Kb7 Qd8 Be1 Bc1 Qh7 Qd4 Kc7 Qe3 Na5 Qd2 Bh3 Ke3 Rf1 e4 Ng1+ Kd4 R1f3 e3 Kd7 Ke4 R8f7 Kd4 Nb7 Kc4 Ra6 Kb3 Qb8 Ka2 Nd6 Kb1 Qf8 Ba5 Rb6 b4 Rb7 b3 Nc4 Nb5 Qfb8 Bb4 Qbf4 Rag8 a8R Ra6 Qh6 Rgg6 Qh7 Ra4 Ra6 Bd1 Bf2 e2 Be3 e1B Ne2 Bf2 Nd4 Bg3 Bf2 Be2 Be1 Qc2 Bc3 Qd2 Raf6 Ba5 Bb4 Bc7 Ra6 Be5 Nf5 Bc3 Ba5 Bb4 Nd4
bqk1q3/8/2b1QRQB/rpK1B1n1/1P1rR1q1/QN3q2/2nQ2Bp/rb2N3 b - - 0 1 legal: proof: f4 g5 d4 e5 d5 exf4 d6 cxd6 Qd2 d5 Qd1 d4 h4 gxh4 a4 b5 a5 Be7 Be3 Bc5 Bc1 Bb6 axb6 Qf6 Kf2 Qe7 Ke1 Qd8 Kd2 d5 Kd3 Kd7 b4 f5 e4 h5 c4 a5 g4 a4 c5 h3 b7 a3 g5 a2 g6 h4 g7 h2 e5 f3 Bf4 h3 Na3 f2 Bh6 f4 Qh5 f3 Bd2 Nf6 g8Q Nh7 Qh4 Qe8 Bg5 Ra5 Qe4 Nc6 b8B Bb7 e6+ Kc8 e7 Ba8 Bh4 Ng5 Bg2 f1Q+ Qe2 f2 Re1 a1R Qg6 Rf8 Nc4 Rf4 Nf3 Re4 Rg1 h1B Bf4 h2 Be5 Rg4 Ncd2 Re4 Kc2 d3+ Kc3 Rd4 Nb3 d2 Qe3 d1Q Qd2 Qfe2 Rgf1 Qe4 Bhg3 Qf4 Re4 Qff8 Ne1 Qg4 Bgf4 Qh8 Rg1 f1Q Be3 Qff3 Rf1 Nd8 c6 Nde6 Bg3 Qe5 Rf2 Qb8 c7 Rc4+ Kd3 Nd4 Be5 Nc2 Rf1 d4 Rf2 Qd8 e8Q Bc6 Qh8 Qe8 Qh3 Qd1 Rf6 Qf3 Qc1 Ba8 Qa3 Bc6 Qhh6 Ba8 Kd2 d3 B3f4 Rd4 Kc3 Nh7 Bc1 d2+ Qe3 d1B Qd3 Be2 Bh6 Ng5 Qe3 Bd3 Qd2 Kd7 c8Q+ Ke7 Qc5+ Kd7 Qb6 Kc8 Qd6 Ne3 Qe7 Bb1 Qe6+ Rd7 Qed5 Rd6 Kd4 Nc2+ Kc5 Rd7 Qdf7 Rd4 Qe7 Nh3 Ref4 Qd3 Bf1 Bhc6 Re4 Ng5 Bg2 Qdf3 Qe6+
1N1k1NKB/R1nq1Q2/2rR1r1N/1pBn2b1/1P1q2r1/3pNQ1b/4b3/R1r3q1 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 d4 c5 Bd3 cxd4 Bc4 f5 exf5 a4 Bb3 axb3 Ke2 e5 Kf3 b5 Ke4 h5 Kd5 d3 g4 b2 a4 e4 c4 h3 f4 d6 g5 d2 a5 h4 g6 h2 a6 h3 g7 e3 c5 e2 a7 e1Q c6 Qe3 f6 Bd7 c7 Qc8 f7+ Ke7 f5 Na6 Qf3 d1B Na3 b1Q Bb2 Rh6 Ne2 Rf6 Nd4 Be2 Rd1 h1R Nc4 h2 Rd3 Qd2 Ne3 Qg1 Bc3 Rb8 a8R Rb6 Ra7 Rc6 Bb2 Qe8 c8Q Qd8 Qb7 Nc7+ Ke4 d5+ Ke5 Bc8 Bc3 Kd7 Bb2 Bc5 f8B Ne7 g8N Qe8 Nh6 Kd8 Bc3 Qd7 Bb2 Qg6 Bc3 Rg1 Bb2 h1R Bc3 Rfd6 f6 Rg4 f7 Rc1 Bb2 Rf6 Bc3 Nf5 Bd6 Ne7 f8N Bb6 Bc5 Qd1 Nb3 d4 Na5 Qg7 Rd2 Qg1 Rd3 Ned5 Rd1 Rcd6 Nc6+ Ke8 Nb8 Kd8 Qa6 Rc6 Qa2 Ne7 Qf7 Ned5 Rd2 Qh8 Rda2 d3 R2a6 Rfe6+ Kf5 Qd4 Bb2 Qc4 Be5 Qd4 Bh8 Na8 Ng6 Bc7 R1a2 Rg3 Qh1 Rcd6 Qh3 Qe8 Nf8 Qc6 Qg4 Rf6+ Kg5 Rde6 R2a5 Bf4+ Kh5 Bg5 Ra1 Nac7 Qf3 Rd6 Rb6 Bh3 Rba6 Qd7 Rc6 Rfe6 Rb6 Rg4 Rba6 Nf6+ Kg6 Nfd5+ Kh7 Rf6 Kg8 Rb6 Kh7 Rb7 Rc6 Rb6 Rd6 Rc6 Kg8
b1rb4/BBnN3k/Q1n1BR1P/5b1R/qN3n1p/3p1K1R/q1r3BQ/1r2b3 b - - 0 1 illegal: No proof kernel
2K2Q2/1nB3Rb/N1N1Bb1p/1r1rR1nn/1q1Q3q/QQ1b1P2/1qpk2B1/6n1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 b4 Kd4 g4 c5 b6 a5 b5 h6 g5 h3 b7 e5+ Kg3 c3 b6 e3 g6 h2 g7 a4 d3 e4 Kf4 c2 Bd2 c1N Ra2 a3 Qa4+ c4 Qb4 e2 Qa5 e1N Nc3 e3 Nd5 e2 Nc7 c3 Bg2 c2 Na6 Nf6 g8B Bf5 Be6 Nc6 b8Q Bh7 b7 Be7 Qc8 Qf8 b8Q Nd8 Qb3 Nf3 Bb4 e1Q Bd6 Ra7 Bc7 Ng5 f3 Nh5+ Kg4 Ke3 Ne2 Bf6 Nd4 Nb7 Nc6 Qfb4+ d4+ Kd2 Rg1 h1B Qf8 Ne2 Rb2 a2 Qaa3 a1Q Rb1 Bg8 Kf5 Qh4 d5 Qb2 d6 Ra8 d7 Rb8 Rge1 Ng1 Re5 Rh7 d8Q+ Rd7 Rbe1 Rd5 Re4 Kc1 Rg4 Kd2 Bf1 Bg2 Rg3 Nh7 Rg7 Ng5 Qdd6 Bh1 Bh3 Bg2 Qc5 Bf1 Bg2 Ne4 Qd4+ Bd3 Bd7 Bh7+ Ke6 Nbd6 Bc8 Rbb5 Kd7 Nb7+ Ke8 Rdc5 Be6 Ng5 Kd7 Rd5+ Kc8
BR3B2/n1Q1bR2/N1b2k1p/q2nq1r1/P2Qr1BN/5n1p/1K1b4/1nrB3Q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 f5 Kc2 c5 a4 b5 e4 f3 g4 f4 g5 c4 e5 f2 g6 b3+ Kc3 h6 g7 b4+ Kb2 h3 e6 f3 d6+ Kf6 d5 Bb7 d7 Ra5 e7 Nc6 e8B Nge7 g8B Na7 d6 Bc6 Bh5 Nd5 Be2 f1R Bg4 f2 Na3 Be7 Nb5 Re1 Bf7 f1Q Rb1 Qf5 Nc7 Re8 Nf3 Qe5+ Qd4 Rc5 Na6 Qa5 d8Q Rf1 Be3 Rc1 d7 Rb5 Bd1 c3+ Ka1 c2 Qc7 Rc5 d8Q b2+ Ka2 Rb5 Qa8 Rc5 Bd2 b3+ Ka3 Rb5+ Bb4 Rc5 Nh4 Rb5 Ra1 b1N+ Kb2 Nd2 Rf1+ Nf3 Rb1 Rc5 Ka3 b2 Bg6 Bd8 Be4 Rb5 Bf8 Be7+ Ka2 Rc5 Ra1 b1N Kb2 Rc3 Ra3 Rd3 Rc3 Rd2 Rb3 Rg2 Rb8 Rg1 Bgf5 Rg8 Bg4 Rg5 Be2 Re1 Bd1 c1B+ Kb3 Be3 Kb2 Bd2 Bec2 Nb6 Bb3 Bb5 Be2 Rc8 Qd8 Rcc1 Nf5 Ng1 Qh1 Kg6 Bed1 Re4 Qc7 Be8 Rf4 Nf3 Bd5 Bd7 Bc6 Nd5 Ba8 Bc6 Nh4+ Kh7 Rf6 Kg8 Rg6+ Kf7 Rg7+ Kf6 Rf7+
2KQB3/2Q1Rb2/Q4Bkp/r3N2b/p1n2q1q/Nqn1R1br/2P5/B3bB1n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 d5 b4 a5 g4 e5 f5 a4 g5 h3 b6 d3 Kc3 h2 b7 d4+ Kc4 e3 Kb5 e2 f6 e1Q Bf4 e4 Be5 d2 Qe2 d1B Ra3 e3 Nf3 d3 Ba1 Qd5+ Kb6 d2 Kc7 Be6 b5 Nd7 b8B Qh4 b6 Ra5 b7 Nb6 Qa6 e2 Re3 e1B Na3 Kg6 f7 Ne7 Ba7 Qd3 b8Q Nc4 B7d4 Qb3 Bf6 Nd5+ Kd8 Bg3 Qc7 Bb4+ f8Q Bf7 Kc8 Nc3 Qfd8 Qf4 Rg1 h1N Rg2 Qh4 Rge2 Qf4 Re1 Be2 Re7 d1Q Re3 Qdd4 Ne5+ Kf5 g6 Bh5 g7 Qde4 Nd3 Kg6 g8B Qh4 R1e2 Qef4 Re7 Nb5 R2e3 Bbe1 Nb4 Nc3 Nc6 Be8 Bd5 Bf7 Bdg2 h6 Bh3 Rf8 Bd7 Re8 R7e5 Re7 Be8 Rd7 R5e4 Rd2 Re5 Rh2 Re7 Rh3 Ne5+
1nqRQ3/B5K1/q6p/1nn3bP/3B1NrQ/Rb4Qp/1qBN1n2/B3brk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 Qd3 Ba3 Qh3 Bf8 Qh4 gxh4 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kf5 a5 e4 d5+ Ke5 f5 c4 f3 g4 h6 b6 h3 b3 f4 b7 d3 g5 a4 g6 f2 g7 d4 Nc3 f3 Ra3 d2 Ra1 d1N Nge2 d3 Ra3 d2 Nf4 Be6 Bb2 Nf6 g8Q Be7 Qg3 Rg8 Bd3 f1Q Ba1 f2 Nb1 Nc3 Bc2 d1N Nd2 Qg2 Rg1 f1Q b4+ Kb6 b5 Kc5 b6 Qc8 Qh4 Nf2 Qg3 Qd3 Rd1 Rg4 Qh4 Nb5 Bd4+ Kc6 c5 Bb3 Qg3 Nfd7+ Kf5 Na6 b8B Bg5 Bbe5 Ndb8+ Kg6 Ra7 Bh8 Rf7 b7 Rf5 e5 Qe2 Ne6 Kd5 c6 Nc5 c7 Rf8 Kg7 Qh2 Ra2 a3 Raa1 a2 Nf4+ Kc6 e6 Rf6 Ng6 Kd5 e7 Qee6 e8Q Qa6 Qh4 Rf5 Qe3 Qg2 Qeg3 Rf6 Rac1 a1B Rb1 Bb2 Ra1 Bc3 Ra3 Ba5 Ba1 Bc3 Nf4+ Kd4 Nf3+ Ke3 Rd8 Be1 Nd2+ Qf3 Qh2 Qe2 Qg1 Nc6 b8B Rf5 Ba7 Nb8 Nf3 Qd2 Qgg3 Qc1 Ne6 Ke2 Nf4+ Kf1 Bd4 Qce6 c8Q Qb2 Qc6 Qec8 Qe8 Rf6 Ng2 Rf5 Nd2+ Kg1 Nf4+ Kh1 Nd5 Qa1 Bc3 Nfe4 Kg8 Rf1 Bhd4 Nf2 Kg7 Qa2 Ba1 Qb2 Qf3+ Kh2 Nf4 Kg1 Qfg3+
qR1B1NB1/1q1n4/n1q1Rrpr/1Qp4P/4Rkrq/b6R/Q1NK2n1/2B2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 e4 Ke7 h4 Kd6 d4 f5 b4 a5 b6 a4 d5 Ke5 b5 g3 b7 a3 b6 g2 d6 f3 d7 a2 h5 c3 Na3 f2+ Ke2 g6 Nb1 c2 Ba3 c1Q Qd3 f4 Qd1 Qh4 d8B Ra6 Qc2 Nf6 Nh3 g1R Ng5 Rg4 Nh7 Nfd7 Rh3 f3+ Kd3 Kf4 e5 Bc5 Nf8 Rh6 e6 c6 Be2 f1N e7 f2 e8R Ne3 Re6 f1Q Qa4+ Qc4+ Kd2 Ng2 Bc1 Qf3 Na3 Qce4 Rb1 a1Q Nc2 Ba3 Rb4 c5 Bc4 Qc6 Qb3 Ra7 Qa2 Na6 b8R Qb1 Rb5 Qa8 Rb3 Qfc6 Rbe3 Qbb5 Re2 Qcb7 Re1 Q5c6 R1e4+ Kf5 Bf1 Qbc7 b7 Nb4 Bc4 Qa4 Re7 Ra6 Bg8 Rf6 R7e6 Qac6 Ree3 Kf4 R3e5 Qaa5 Ra8 Q7b6 b8Q Ba6 Na1 Bf1 Nc2 Qba7 Qb6 Qab7 Rb8 Qaa8 Qb5 Na6 Re4+
Q2q3R/2BBBN1n/1K2Np2/3P1b2/q1r1rnn1/1B1Q4/p3bRbR/1kb2r2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 b4 Kd6 d4 Kd5 g4 Ke4 g5 c5 e3 h5 b6 a5 g6 c3 b7 c2 b5 h3 b6 f3 g7 h2 d5 c4 Qe1 h4 Qc3 h3 Qb3 f6 Bb2 c1R Ra4 Nd7 b8Q Nh6 g8B Ba3 b7 Nf8 Ne2 Bf5 Nbc3+ Kd3 Ne4+ c3 Ng5 Ra1 Rg4 a4 e4 Ra7 Qc4+ Kc2 Ke3 f2 Kd4 Rh7 Qa6 Rc7 Nf4 Re1 Be2 Rf1 Be6 Kb1 Bd7 c2 Rg2 c1N Nf7 Nd3 Bd1 Rc6 Bc3 Bc1 Qa8 a3 b8B a2 Bc7 Re6 Qa3 Ra4+ Bb4 Re7 Kc4 Re6 Kb5 Re8 Bc3 Rc4 Bb4 Re5 Kb6 Re7 Rhg1 h1B Qc3 h2 e5 Be4 e6 Bf5 Bd6 Nh7 Qd4 Re8 e7 Ng4 Bc5 Re1 Ba3 f1B Re2 Bf3 Rgg2 h1Q Ref2 B3e2 Rh2 Bg2 B1a4 Rd1 Bd6 Qe1 Qe3 Qc3 Qh3 Qa3 Bb3 Qa4 Qf3 Rg8 e8R Rf1 Qe3 Qc8 Rd8 Re8 Ba3 Re7 Rh8 Ree4 Be7 Qd8 Ne6 Nf4 Qd3+
n3r2B/4r1BR/nNK1npq1/1pb4B/q3BP2/QN5N/krQq4/1b1R1n2 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a4 d5 axb5 dxe4 b6 c6 b5 cxb5 Ke2 Kd7 Ke3 Ke6 g4 Kd5 f4 e5 d4 a5 b7 h5 c3 a4 g5 f6 g6 h3 g7 h2 Qd2 a3 Ne2 Kc4 d5 Kb3 c4 h4 c5 a2 c6 h3 c7 Na6 b8B Bc5+ Qd4 Bf5 c8N Ne7 d6 Re8 Nb6 Nc8 d7 Bg6 Rg1 h1Q Bd6 h2 Bf8 Qg2 Ba3 h1N Bb4 Ng3 Rh1 Re7 Ng1 Qc2 Be2 Nf1+ Kf2 e3+ Kf3 Bh7 Nh3 Qg6 Qd6 Ra7 g8B+ Kb2 Bd1 e2 Bd5 e1R Be4 Ra8 Qc6 Re2 Nd2 Rg2 Rc1 a1Q Bg7 Qa4 Bh8 Ka2 Nb3 Rb2 Be2 Rb8 Rd1 Ra8 Qd6 Rb8 Qd2 Ra8 Qc2 Rb8 Nc4 Nb6 Ba3 Na8 Nb6 Qdg8 d8Q Qd5 Qg8 Qd2 Qgc4 Rbe8 Qb4 Bg8 Nf2 Bc4 Rh7 Bd3 Qcc4 Bb1 Qc2 N6c7 Nh3 Ne6 B4d3 Qg8 Ke4 Qg6+ Kd5 e4 Bh5 e3 Kc6 e2 Be4 e1N Qbc3 Nd3 Bb4 Bf2 Bd6 Ndc5 Qb4 Na6 Bc5 Rf7 Bf8 Rfe7 Bfg7 Bc5 Qa3+
1R1n1BNk/2q5/QR2bpn1/P1rrbN2/B1rb1NB1/3p2Q1/5nKb/3q3N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 g5 e4 b5 a4 d5 c4 g3+ Kg2 d3 h4 d2 c5 d4 h5 g4 e6 b3 e7 b4 c6 b2 e5 b3 c7 d3 a5 f6 h6 Kf7 e8N Be6 c8N Qc7 h7 Bd6 Qe1 d1N Bh6 Nc6 Ng7 Nge7 Nd2 b1R Ne2 b2 Nf4 Nf2 Be2 Ng6 Nf1 Rd8 h8Q Rc1 Ne7 b1Q Ng8 Rc5 Nf5 Qd1 Rb1 Rac8 Rb6 Rd7 Bf8 Nd8 Qh3 Rc4 Qb4 Rc5 Qb5 Rc4 Kg1 g2 Qg3 Rc5 Kh2 g1B+ Kg2 Bh2 Qa6 Rc4 Qh4 Rc5 N1g3 Rc4 Rg1 Rc5 Nh1 g3 Re1 Rc4 Bg4 Rc5 Re2 Rc4 Kf3 g2 Qg3 g1B Kg2 Rc5 Rb8 Rc4 Reb2 Rc5 R2b6 Rc4 Nd4 Rc5 Be7 Kg7 Bf8+ Kh8 Nf5 Bf7 e6 Be5 e7 Rdd5 e8B Be6 Ngh6 Nh3 Ba4 Bgd4 Ra8 Nf2 Ng8 Rb8 Rb1 Rb4 Rb8 Rbc4 R1b6
3Rq3/N1Q1B1Rb/1rnNP1Bk/1qn1rq2/1b1Qp2p/q4N2/2R1n2K/5rN1 b - - 0 1 illegal: No proof kernel
3bknb1/1Nr5/nQb1pR1K/4B1Q1/1q2qQ1B/p1n1BNR1/2qP4/3Br1n1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 a5 Ke3 h5 Kf4 c5 Kg5 a4 f4 e3 b4 e2 g4 e1N b6 h3 b5 h2 b7 h4 b6 h3 f5 a3 f6 c3 Bd3 c4 Bb2 c2 Be2 c1Q Qb3 c3 Nf3 c2 Bd4 Rh7 Be3 Qd6 Rf1 h1Q Bd1 h2 Nc3 Be6 Na4 Na6 b8B Qb4 b7 Bh6+ Kg6 Bg5 Be5 Qg2 b8B h1B Nc5 Ra7 Qa2 Rc7 Qb1 Qcb2 Ba7 c1N Nb7 Na2 Bac5 Bh4 g5 Nc3 Rg1 Qe2 Rg3 Rh8 Kg7 Qc2 g6 Rh5 Bg5 Qee4 Bce3 Bf7 Qb2 e6 Qb3 Ne7 Rb1 Qa4 Qb6 Bg8 Rb5 Qab4 f7+ Kd7 f8Q Bg2 Qf6 Ke8 Qf4 Rh6 Nd4 Nf3 Rd5 Ng1 Nf3 Rh5 Bgf6 Rg5 Kh6 Rg4 g7 Ng6 Rd7 Nf8 Rf7 Bh1 Bd8 Rg5 Rf6 Rg4 Rh3 Rg2 Rg3 Re2 Be7 Re1 Bd8 Bh7 g8Q Bg2 Rf5 Bf6 Qgg5 Bg8 Be7 Bh1 B7d6 Bd8 Rf6 Bg2 Bdc5 Bf1 Bf2 Bb5 Bce3 Bc6 Rh3 Nce2 Bh4 Nc3 Rg3
2bbB2K/nn2R2Q/4pR2/1Nb1Q2N/2k1nq1P/2R1p2q/3nBBq1/2r3Br b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Ke6 c4 a5 b4 d5 c5 g5 b6 e3 Kd3 g3 b5 g4 b7 a4 b6 a3 h3 a2 c6 g2 c7 g3 Bd2 Na6 b8Q Qd6 b7 Nf6 Qc2 Ne4 Ne2 g1B Na3 g2 Rd1 a1N Ng3 Nb3 Be1 Nbd2 f5+ Ke5 f6 Nac5+ Ke2 e6 f7 Bh2 Nh5 g1Q Nb5 Qg2+ Bf2 Ra1 Qd3 Be7 f8R Bd8 Rf6 Rc1 Qb1 Qf8 Qd3 Qh6 Qc2 Qf4 h4 Rg8 Rg1 Qh3 Rg7 d3+ Ke1 d4 Re7 Kd5 Be2 Rf8 Qb1 Kc4 Bg1 Bd7 c8B Rg8 Qd6 Rg4 b8B Nb7 Bf2 Rg6 Qe5 Rg1+ Bf1 Rh1 Bc7 Bc6 Bd7 Bg3 Be8 Bd7 Bb8 Bc8 Bd6 Bh2 Bg1 Qg5 Bb8 Qgg2 Be2 Bf4 Qf5 Bg5 Bg3 Bf4 Qh7 Bd6 Qa1 Bc5 Bf2 Ned6 Nc7 Nb5 Qa5 Na7 Nb5 Qhf3 Qc7 Qf4 Qe5 Ne4 Bf3 d2+ Ke2 Qh3 Rf1 d1N Re1 Kb4 Kd3 Ndc3 Rd1 Nb1 Be2 Nbd2 Qb8 Nc3 Bg4 Ne2 Rff7 Nc3 Bg3 Nf3 Be1 Qfg3 Bef2 Qgg2 Rd2 Na2 Ke4 Nc3+ Kf4 Kc4 Qe5 Nd1 Rf6 Nc3 Bg3 d3 Be1 Nd4 Kg5 Nf3+ Kh6 Ne4 Rd1 d2 Kg7 Qgh2 Bg3 Qf2 Kh8 Qfg2 Rf1 d1Q Rf2 Kb3 Rd2 Kc4 Rd3 Nfd2 Be2 Qdf1 Be1 Qff3 Bef2 Qf4 Rc3+
4RBQr/qr1R2nq/rN1NpQ2/k2r3P/bN3n2/6nB/R1p2K1b/3q3N b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 f4 Kd7 h4 g5 b4 a5 d4 c5 f5 Kc7 d5 Kb6 f6 e3 f7 e6 h5 g3 d6 a4 d7 a3 Qa4 c3 Nf3 a2 Rh4 g2 Rg4 g1Q Rg3 e2 Be3 c2 Ne5 c1R+ Qd1 g4 Na3 Qc7 d8Q Rb1 Bf4 c4 Bc1 c3 Rd3 c2 Bh6 g3 Qf6 g2 Ng4 Na6 Nf2 Bd6 f8N Nc5 Nh1 Bh2 Rd7 Ra5 Bg7 Ne7 Nc4+ Ka7 b6+ Ka6 b7 Ne4 b8R Qga7 Ra8 g1Q Nd6 Rd5 b5+ Ka5 b6 Nf5 b7 Neg3 b8N Rb7 Na6 Qgd4 Bh6 Ng7 Nb4 Qd3 Qb1 Qh7 Bh3 Qd8 Re7 Bd7 Qc1 Be8 Qcg5 Bb5 Nd7 Ba4 Nb6 Qd7 Kf2 e1N Rg8 Ng2 Rge8 Qd8 Rd7 Nf4 Rb1 a1R Rb2 Qe7 Ra2 Qd3 Rb2 Qd1 Ra2 Qf7 Qgg6 Qg8 Qgf7 Qh7 Qg8 N7f5 Nf7 Kb5 Rd6 Bb3 Rb2 Ra6 Bf8 Ba4 Ra2 Ng7 Rd7 Ka5 Nd6
Q4rQn/rNk5/bqRbpNq1/rp4P1/2B4R/n6K/1nB2RnB/5bB1 b - - 0 1 illegal: No possible last move, all moves rejected
2b5/Q1nnQ2B/3p1Rr1/2r3q1/q2R2N1/1n3npk/br2QPQ1/1RBN1Kb1 b - - 0 1 illegal: No possible last move
Nb4Kb/2b1Nr2/1k1p2Nb/2rB4/1n1R4/pq1BQ2R/P3nr1n/1q1N2BQ b - - 0 1 legal: proof: e4 f5 d4 fxe4 g4 c5 g5 cxd4 g6 hxg6 Nd2 g5 Nb1 g4 b3 a5 Qe2 b6 Qd1 a4 Be2 a3 Bf1 Bb7 Bd3 Bc6 Bf1 Ba4 bxa4 Rh7 Bg2 Rh5 Bf1 Rh8 Ke2 e5 f4 g5 c4 d3+ Ke3 d6 h4 Kd7 c5 Kc6 h5 b5 h6 g3 h7 b4 a5 g2 f5 g4 a6 g3 f6 b3 f7 d2 Qf3 d1R Rh2 b2 Be2 Nf6 Rh6 Rf1 Qf5 Ra7 Rh2 Bh6+ Qg5 Qb6 f8N Qb3+ Bd3 Rf7 Nf3 g1N Nh4 g2 Nhg6 Rf2 Rh3 Ne2 Nc3 b1Q Nd1 g1B Ne7+ Kc7 c6 Kb6 c7 Nc6 c8B Nb4 Be6 Ng4+ Kd2 Nh2 Ke3 Rg8 Nfg6 Rc8 h8Q Rc5 Bd5 Ka7 Kd2 Kb6 a7 e3+ Ke1 e4 Bb2 Ng3 Bd4 e2 Kd2 e1B+ Ke3 Ne2 Qa8 Q1c2 Rc1 Qcb1 Rc4 Bc3 Qf8 Rg7 Qf3 Rf7 Qh1 Ba1 Kd2 Bb2 Be3 Bh8 Rd4 R2f4 Qe5 Bf2 Qg5 Bh4 Bg1 Rf2 Qe3 B4g5 Nf5 Bd8 Nfe7 Bc7 Qf4 Bb8 Ke3 Rf6 Rc4 Ng3 Kd4 e3 Qe5 e2 Qe3 Na6 Ra4 e1B Rc4 Ne2+ Ke4 R6f3 Rd4 Nf4 Kf5 Ne2+ Ke6 Ba5 Ne5 Nb4 N5g6 Bf6 Kf7 Bh8+ Kg8 Rf7 B3e4 Kb5 Bf5 Bac7 Bd3+ Kb6 a8N+
1Q1bNbR1/5q2/bB1p2Bk/1R2q3/nQ1p1n2/2rR1Rrr/2N2qP1/1K1B2q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 b4 a5 e4 a4 c4 f3 Kc2 a3 b6 f2 c5 a2 b5 h3 b7 h4 b6 h2 c6 h3 c7 Qg5 e5 Ne7 e6 Qe5 Bd3 f1Q Ba6 Rg8 Nc3 Nd5 e7 Qf2+ Nge2 Nf4 Kb2 Rg3 Bc4 Na6 b8Q Nc5 b7 Ra3 Rf1 h1Q Qd2 h2 Nb5 Rac3 Bb3 Qhg1 Bd1 h1R Qe1 f6 Be3 Kf7 e8B+ Kg7 Nd6 Kh6 Bg6 Rhh3 Rc1 a1B+ Kb1 Bb2 Ne8 Na4 Rc2 Bba3 Rd2 Bae7 Rd3 Bd8 Qd2 Qe1 Rf3 Qgf2 Qa7 Qeg1 b8R Bb7 c8R Ba6 Nc1 Qh5 Rb5 Qe5 Qb8 d6 Nb3 f5 Na1 Rh5 Nc2 Rhh3 Qe1 Ra3 Rc7 Qe2 Bf2 Ne6 Ra7 f4 Rfe3 f3 Rg7 Qef1 Qc3 Qe2 Be1 f2 Rg8 f1Q Qb2 Qf7 Rf3 Nf4 Ba5 Rc3 Qb4 Qef2 Bb6
3r3b/1B2B2k/B1bp2rP/3p2qq/R1r4N/Rbr1n2K/NQ1Q2R1/2nBq3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 d5 c6 Qd2 cxd5 Qd4 Bc5 Qd1 Bf8 Kf2 a5 Kg2 g5 e4 f5 h4 Kf7 c4 Kg6 b4 g3 c5 a4 c6 a3 b6 f3+ Kh3 d6 h5+ Kh7 b5 a2 h6 f2 e5 g2 c7 f4+ e6 f3 b7 g4+ Kg3 Ra4 b6 Nd7 b8Q Ngf6 e7 Rc4 e8B Nc5 b7 Nd3 Kh4 g3+ Bf4 Bg7 Bd7 Nc1 Kh3 Qe8 Qe1 Ng4 Bc6 Bd7 Bb5 Bc6 c8B Ne3 Be2 f1R Qd2 f2 Nf3 g1R Rh2 g2 Bg5 Qh5+ Nh4 Rd8 Ba6 Bh8 Nc3 Re1 Bf3 f1B Be7 Bd3 Bd1 Bc2 Qa7 Ref1 b8R Bb3 Qb6 Rf6 Qbd4 Rg6 Bcb7 Rh1 Ra8 g1Q Qb2 Qgg5 Qdd2 Rf1 Rg2 Rff8 Rb1 a1Q Ra7 Qa5 Na2 Rff4 Ra1 Rc3 Bf1 Qb4 Ra4 Qe4 Bd3 Qee5 Bda6 Rfc4 Nb4 Qe4 R1a3 Qee5 Na2 Qe4 Rf2 Qh1+ Rh2 Qe1 Rg2
Kn1bR3/2BN4/2Pq2QN/1ppRQ1R1/B3Qnb1/k2qr1r1/q2r2n1/5nR1 b - - 0 1 illegal: No proof kernel
1bRBn1r1/1bnB3Q/R1p4K/Q2n1r1p/Qq6/N1q5/QNqRknP1/7b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 d4 Kd5 b4 a5 b6 f5 e3 h5 b7 c3 b5 c2 b6 a4 Ra3 c6 Bd2 c1Q Ba6 h3 Bd3 h2 Ne2 Na6 b8R Bd6 b7 Qf8 Ba5 Qc2 Bd8 Nf6 Nc1 Nc7 Qd2 Ra7 Rd1 h1B Be2 Ra5 Nd3 Kc4 e4 Rg8 e5 Rc5 d5 Nfe8 e6 Ra5 Ra2 a3 e7 Be5 Ra1 a2 d6 Rb5 d7 Rc5 Kf2 f3 Ke3 f2 Bg4 f1N+ Kf3 f4 Na3+ Kd4 Be6 Ne3 Nb2+ Qd3 Qc2 Rb5 Rd2 Ned5+ Kf2 f3 Qa4+ Kc3 Ra8 Qdf5 b8Q Bb7 Qba7 Qc2 Rc8 Qf4 Q7a6 Rc5 Qe2 Qb4 Qe4 Ra5 Qh7 Bf4 Kf1 f2 Ke2 f1N Kf3 Nfe3 Bh3 Ng7 e8Q Ng4 Qe2 Nf2 Qa6 Nge8 Qe2 Bg5 Kg3 Bf4+ Kh4 Be3+ Bg4 Ba7 Qe6 Bb8 Qef7 Rh8 Kg5 Rg8+ Kh6 Rb5 Be7 Ra5 d8Q Rb5 Bd7 Rc5 Rb1 a1Q Rf1 Qe1 Bg5 Qe3 Ra1 Qed3 Ra2 Kd4 Bh4 Ke3 Bf6 Qdc3 Be7 Nb5 Qda5 Nbc7 Bd8 Rb5 Rd4 Ke2 Ra1 Ne7 Qa2 Rf5 Rd2+ Ke3 Qaf7 Ne4 Nac4+ Kf4 Qa3 Qe5 Qb5 Nf2 Qb3 Qec3 Ra6 Ke4 Na3 Ke3 Qfc4 Ned5 Q3a4 Nf4 Qa2 Nfd5 Rd3+ Ke2 Qba5 Qcc4 Rd1 Qc4c3 Rd2+
B2RR1KQ/1nk1B2r/2p5/Nn3p2/1R1b4/1nQbR1b1/1rNqPB2/2q1b1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 a5 Kf5 c3 g4 c2 b4 f3 d4 h3 b6 h4 b7 a4 g5 f2 d5 h2 b5 a3 b6 h3 d6 a2 g6 Nh6+ Ke5 f5 g7 Rh7 g8Q Na6 b8B Nc5 Na3 Nb7 Be3 c1B Nc4 Bd2 Rb1 Be1 Bg2 a1B+ Qd4 f1N Qh8 Ra2 Nf3 Rb2 Bf2 Nd2 Na5 Nb3 Qc3 Nf7+ Kd5 Bh6 Nd4 Bf4 Nc2 Bg3 Rg1 h1Q Ba7 N7c5 b7 h2 b8R Nb7 Bac5 Qg5 Rf1 Qg1 Be4 h1Q Bf3 Qg8 Bb4 Kd8 d7 Qe8 Bg2 Nfd6 Ba3 Qf8 Ke6 Qe8+ Kf6 Nb5 Bf8 Qe3 Bf3 Rh6+ Kf7 Rh7+ Kg8 Qhh6 Bd6 Qc1 Ra8 Qhd2 Rb8 N7c5 Ba8 c6 Be7+ Kc7 d8R Ba6 Re8 Nb7 Rbd8 Qh2 Rh1 Qg1 Rh2 Na7 Rh6 Bd3 Re6 Nb5 Re3 Ra2 Qb4 Bd4 Qc3 Rb2 Ra1 Rh5 Ra4 Rh7 Rb4
2k4n/Qrbq2Q1/QNp3P1/1n2n2K/qB4rN/p1R2Rq1/1Q2b3/q3RB1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 e4 a5 b4 h5 g4 c3 d4 c2 g5 a4 b6 c6 g6 h3 b7 h2 e5 h4 b5 a3 d5 h3 b6 Rh7 d6 Nh6 Bb5 Na6 b8Q Nf7 b7 Nc7 Qd3 Ra4 Qd1 Nh8 Be2 Nb5 Bd2 c1N Bf1 Nd3 Qa7 Qc7 b8R Ba6 Bb4 Rg7 Rb7 Kc8 e6 Qd7 e7 Rf7 Qe2 Ne5+ Kf2 f3 Kg3 f2 Kh4 f4 Nf3 Bh6 Nc3 Bf8 Rg1 h1Q Rc1 h2 Kh5 Qg2 Qb2 h1B Nd5 Qg3 Nh4 f3 Rc3 Bh6 Rb6 Be3 Rb7 Bb6 e8Q+ Bd8 Qe6 Bc7 Qf6 Re7 Qg7 Rf7 Bd3 f1Q Be2 Qb1 Re1 f2 Bf1 Qe4 Rf3 Nd4 Rb6 Be2 Rb5 Re7 Rc5 Nb5 Rc3 Qc2 Bc5 Rg4 Bb4 Qa4 Qa6+ Kb8 Nb6 Rf7 Bh3 f1Q Bg2 Qe6 d7 Qg1 d8Q+ Qc8 Qd5 Qd7 Bf1 Qd4 Qc2 Qd1 Qb2 Qa1 Qd3 Re7 Nc4 Rf7 Qa7+ Kc8 Nb6+ Kd8 Qd1 Bd6 Rfd3 Qe7 Rc5 Nc7 Nd5 Kc8 Rf3 Qd8 Qdd4 Qe8 Qb6 Nb5 Rcc3 Rb7 Qa6 Qd7 Qda7 Bc7 Nb6+
1Kb2nq1/B1R5/1pb3R1/1B1N1qk1/n3P1b1/r1pR2q1/3NQQB1/2b1R1rn b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 d4 c5 a4 b3 g4 c4 d6 b6 Kd5 f3 d7 b2 e3 c3 a5 f2 a6 h3 a7 h2 Qd3 h4 Nd2 b1Q Ne2 h3 Nf4 Ba3 Qe2 Na6 Kc6 Qd3 d5 Kg5 d6 f5 Nd5 f4 e4 f3 Bg2 Nc5 Re1 h1B Ra2 Qe8 Kc7 f1Q d8R f2 d7 h2 Ra1 Ne7 Ra2 Kg6 g5 Rg8 Ra1 Bb2 Ra4 Qh3 Rc4 Na4 Rc5 Qg4 Rc4 Kh5 g6 Kg5 g7 Ng6 Rc6 Nf8 Rc5 Rb8 a8B Qf5 Bc6 Ra8 Rc4 Qg1 Bb5 f1B Rc5 Ra5 Kb8 Qe3 Rc7 Qg3 Bh3 Bf3 Bg2 h1N Qf2 Rh8 g8R+ Qeg6 Rg7 Rg8 Qe2 Bg4 Qf2 Ba1 Ba3 Bb2 Bd6 Bc1 Bf4+ Kh4 Be5 Qge6 Rg6 Bd3 Re8 Rg7 d8Q+ Kh5 Qe2 Qg8 Qf6 Bc2 Rd8 Bb3 Ne7 Bd5 Qf7 Ba8 Rd3 Bc6 Nd5 Ra7 Rh6+ Kg5 Bd6 Qfh7 Qff2 Qf5 Rf6 Qh4 Bh2 Qg3 Rg6+ Kh4 Rd6 Bf3 Rdd7 Nb2 Bh3 Ra3 Rd6 Na4 Re7 Rg4 Rb7 Kg5 Ka7 Qg1 Rg6+ Kh5 Bb8 Rg3 Ka8 Bg4 Ba7 Qh2 Kb8 Rg1+ Rc7 Qg3 Bg2 Kh4 Rh6+ Kg5 Rg6+
1Q3K1b/qn2B3/P2b2Q1/1pB2RR1/2kr4/2p3qb/q1n1QBN1/Nr2qBr1 b - - 0 1 illegal: No possible last move, all moves rejected
4rQ1Q/NR1b1Kn1/p7/2nNBpRn/rbr1b1B1/1P3R1r/1k1R3Q/1q4q1 b - - 0 1 illegal: No possible last move, all moves rejected
BRbb2B1/Q2RNN1q/p3Pn2/bp6/r2n2rn/4kr2/q3Q3/N1B1N1bK b - - 0 1 illegal: No possible last move
Q1bK4/q1NB1rRP/3k2b1/1n2qR2/1N5p/Q3n1Nq/3Bpb1Q/rNr1q3 b - - 0 1 illegal: No proof kernel
1BN5/2BR1Nrp/q1bn1kr1/1B1r2nb/Rp2n3/1B4Q1/QRP1q1n1/1K4b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 g4 b5 f4 d5 a4 e5 a5 h3 a6 d3 g5 e4 f6 e3+ Ke1 d4 a7 h2 f5 b3 Nf3 d2+ Ke2 b2 Kd3 e2 Na3 e1N+ Ke2 b1N Nc4 b4 Ra4 Nd7 Nb6 Ng2 Qe1 d1R Qg3 Nc5 Bf4 Ne7 Bc7 Rg8 Bb8 Bb7 Nc8 Qb6 Bc7 Rb8 a8Q Rg6 Rg1 h1B Ne5+ Kg8 f7+ Kg7 Qa5 Bc6 Qa8 Ne6 f6+ Kh8 Qa7 Nd2 Kd3 Rg7 g6 Nf5 Qa5 Be7 f8B Nd6 f7 Ng5 Qd5 Ra8 Qa2 Ra6 Bb8 Bd8 Be7 Bc7 Bd8 Qa7 Be2 Bb6 Bdc7 Bf3 Rf1 Bh5 Rf3 Bc5 Bf1 Qa8 Ke2 N2e4 f8R+ Rg8 Nf7+ Kg7 Re8 Rc6 Rd8 Qa6+ Qc4 Rd3 Qa2 Rb6 Rd7 Rb7 Qg4 Ba7 Re3 Kf6 Rg3 Rg7 Rh3 Rg3+ Kd1 d3 Kc1 d2+ Kb1 Bg1 Bb5 Rb6 Qh4 Rd3 Qe1 Rd5 Rb3 Rc6 Qg3 d1Q+ Kb2 Qd4+ Kb1 Qe3 Rb2 Qe2 Nh8 Re7 g7 Rf7 g8B Rg7 Bf7 Re5 Ra3 Nf4 Ka1 Nb7 Rbb3 Nc3 Qh2 Kf5 Bd8 Rcg6 Qg3 Nd6 Rb2 Bc6 Bb3 Rd5 Nf7 Nce4 Ra4 Ng2 Bdc7 Kf6 Kb1
qkQ5/qr1bKn1p/2BN2QP/r1R5/1Bp5/b2NBq2/B7/1nnQb1Rb b - - 0 1 illegal: No possible last move, all moves rejected
k1r5/2BbBnKp/1q4pn/2rqP3/nq4Rb/r1NN1B2/1QR1Q3/R5Rn b - - 0 1 illegal: No proof kernel
2bB4/RrbbrbRp/4kp1P/3n1r1B/1RR1Nq2/2Q3NQ/K2N2q1/2q4n b - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 d4 Kd7 Kd2 a5 h4 e5 g4 f6 c4 a4 Kc2 a3 Kb3 e3 b6 e4 g5 a2 d5 f3 d6 f2 c5 e2 g6 e1R c6+ Ke6 d7 e3 c7 e2 h5 Nh6 b7 Bd6 g7 Qg8 d8Q Nc6 b8R Ne7 Qc2 Ra5 Qc4+ Nd5 Qc6 Nf5 h6 Ng3 Rh4 Nh1 Bd2 Rc5 Bg2 f1B Bf3 Bh3 Bh5 Bg4 Kb2 b3 Rb4 Rb5 Ka3 b2 Qc3 Rf1 Qf8 e1Q Ne2 Rf5 Ng3 Qe4 Be1 Be5 Nd2 b1B Qd8 Bd7 c8N Rb7 Nd6 Qf4 N6e4 Bc7 Qc8 Bd3 Bf2 Bc4 Bc5 Bh3 Be7 Bb3 Bd8 Bc4 Rc1 Bb3 Rc2 a1Q+ Ra2 Qaf1 Rc4 Qg2 Rb4 Qf7 Rc4 Re8 g8R Re7 Rg7 Qg6 Kb2 Qgg4 Ra7 Qd1 Ka3 Qc1+ Qb2 Bc2 Ka2 Ba4 Qc3 Bc6 Qb8 Be8 Rb4 Bf7 Qc8+ Bd7 Nf2 Qe5 Rhc4 Qf4 Nfe4 Re5 Qa8 Qd1 Nf5 Bc6 Qc1 Kd7 Ra5 Ba4 Qc2 Qc1 Qa7 Bc6 Qe3 Bg4 Qh3 Ba4 Nd4 Bge6 Qcc3 Rf5 Ra7 Bb5 Nf2 Kd6 Ne2 Bc8 Ng3 Ke6 Nfe4 Bc6 Raa4 B6d7 Ra7
B2Q1bq1/2KNqQP1/1Nbnq3/Rr6/N4r2/N1r2rkp/BpRn2b1/B7 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 b5 a4 h5 g4 c5 d4 f5+ Kd3 f3 e4 b3 g5 b4 Kc4 h3 Kb5 b2 g6 b3 a5 f4 a6 c4 g7 c3 a7 h2 Ra3 c2 Ra2 f2 Nf3 h4 Ng1 f3 Nh3 Rh5 Bc4 f1B Nf4 f2 Na3 b1Q Bb2 c1R Ba1 b2 Qb3 Qe7 Kb6 h3 Rg1 h1Q Rg2 Nh6 e5+ Kd7 d6 Qf5 d5 Bb7 Qf3 Rc3 Rh2 Nf7 e6+ Kc8 Bb3 Bc6 d7+ Kd8 Bc4 Na6 Bb3 Rc8 a8B Nd6 Rg2 Rg5 Qh5 Nc5 Qf7 Rf3 Rh2 Bc4 Rg2 f1R Rc2 R1f2 Re2 Ndb7 Re4 Rd3 Nb5 Qe8 Re2 Rb8 Rc2 Rgg3 Qg8 Ke7 d8N Kf6 d6 Ke5 d7 Rc3 e7 Ne4 Nd5 Bf1 Kc7 Qef7 e8N Nd2 Ra3 Nd6 Ne6 Qhe4 Nc5 Bg2 Ra5 Qc4 Na3 Qe7 Ba2 Rb5 Nb6 Kf4 Nf6 Kf3 Qh8 Qg8 Nca4 Qfe6 Qh5+ Rg4 Qf7 Rf4 Ra7 Kg3 Ra5 Qe8 d8Q Q8e7+ Nfd7 Rf1 Bd5 R1f3 Ba2
Bb1Rb1K1/q1k1B1P1/3r1B2/N2N2Q1/q1Q1nb2/1qr1p3/1p2n2B/q1Rr1Q2 b - - 0 1 illegal: No possible last move
1Q1qbn1R/r2B1nP1/N7/qrBbNbRR/5kp1/Qq1n4/1b1p3B/B5K1 b - - 0 1 illegal: No possible last move
rqkr1N1Q/bb4p1/1N1nQq2/1N6/K1n5/1P4b1/1p1RQqBB/2bn1R1N b - - 0 1 illegal: No proof kernel
QB3kN1/3b2pN/KB1n1bb1/nr2R2P/pq2BR2/n1qRr2B/3qQq2/8 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 Kd3 d5 b4 a5 e4 g3 h4 a4 c4 g2 h5 f3 e5 f4 e6 f2 c5 f3 b6 Bd7 b7 Ra5 e7 Nh6 b5 Nf5 b6 Nc6 b8Q Qc8 b7 Rb5 Qc2 Na5 c6 Nd6 Be2 f1Q c7 f2 Nd2 Qe1 Qa8 f1B Ngf3 g1Q b8B Qgf2 Ne4 Qb4 Be3 Rh6 Qc4 Re6 Rh4 Kf7 e8R Be7 Rb1 Bf6 Rb3 Bh3 Bf1 Bf5 Bg2 Bg6 Rf4 Re5 Re7+ Kf8 Ng5 Re6 Qc2 Re5 Qe2 Re6 Rc3 Re5 Kd2 d3 Bb6 d4 Bf3 Qb7 c8B Qc6 Bg2 Qcc4 Bb7 Re6 Bh3 Qc6 Nc5 Re3 Re5 Qc7 Nce4 Qcc4 Kc1 d2+ Kc2 d1N Bd5 Nb2 Bb7 Qf7 Rd3 Nbc4 Bd5 Bd8 Nf6 Na3+ Kd1 Qf3 Ng8 Bf6 Be4 Qf2 Rc3 d3 Kd2 Qb1 Rb3 Qg3 Kc3 d2+ Kd4 d1Q+ Rd3 Qfa2 Kc3 Qdg1 Kd4 Q1f2 Kc3 Qd2+ Kd4 Rb4+ Kd5 Qbe1 Kc5 Rb5+ Kd4 Qb1 Rf5 Qgg1 Rf4 Rb2 Kc5 Qgd1 Bd8 Qb3 Bdc7 Ndb5 Kb6 Nd6+ Ka7 Qbc3 Ka6 Rb5 Bb6 Qbb4 Nh7+
q3Q2R/4k1pK/pNbR3n/1r2NQ2/qRB2Q2/PRq1n1b1/2r3B1/3n2bq b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 Ke2 b5 Ke3 e5 f4 g2 d4 g3 c4 a6 h4 b4 d5 b3 h5 b2 d6 Kd7 f5 Nh6 c6+ Ke8 d7+ Kf7 f6 Bb7 a3 Ra7 c7 Qe8 d8R Rh7 c8B Bd6 c5 Bc6 Rh3 Rb7 Qc1 Rb5 Nd2 b1N Nc4 Nd7 Nb6 Nc3 Bb7 Qg8 Nf3 g1B+ Kd2 e3+ Kd3 e2 Qf4 e1Q Rb1 g2 Rb4 Ke6 f7 Nf6 f8Q Nfd5 Q8f5+ Ke7 Rg3 Bc7 Rd6 Nd1 Rh3 Qd2+ Ke4 Qc3 Bc4 Qa8 Rg3 Qb3 Rh3 Qa4 Rg3 Be8 c6 N5e3 Rh3 Bb8 c7 Bd7 Bbd5 Bc6 c8Q Bc7 Qg8 Rh8 Qb8 Rc8 Rg3 Bf2 Rh3 g1Q Rg3 Qh1 Rh3 Nhg4 h6 Bg1 h7 Nh6 h8R Rc5 Kd3 e4+ Kd4 Rb5 Ke5 Nc2 Rg3 e3 Ke4 e2 Rh3 Qh2 Ne5 e1Q+ Re3 Qeg3 Reb3 Qc3 Qg6 Ng4 Kf5 Qh1 Bg2 Nh6+ Kg5 Nce3 Qgf5 Rd8 Kg6 Rd7 Rf6 Rd2 Kh7 Rc2 Rd6 Bd8 Bg8 Ke8 Nc8 Bh4 Nb6+ Ke7 Bc4 Bg3 Qe8+
2q3QR/KN1Q1Pr1/2q1bk1B/1r2N1b1/BR1p2bQ/5pn1/4r2n/2BB1rq1 b - - 0 1 illegal: No proof kernel
rr2R2Q/k3RPQB/N1qrpB2/bq1q1bb1/3pn1Q1/3Q4/Rb2N3/3K3n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 g4 a5 f4 d5 b4 Kd7 c4 Kc7 b6+ Kb7 c5 h5 b5 e3 g5 e2 f5 h3 f6 h4 g6 h2 g7 d3 f7 d2+ Kf2 e1B+ Ke2 h3 Qb3 d1R Qa2 a4 Bb2 a3 Bf6 Ba5 Qb3 a2 Nc3 Nh6 g8Q Qe8 Qg7 Na6 c6+ Kb8 b7 Nc5 c7+ Ka7 b8R Nf5 Qc2 Ne4 Qd3 Bd7 c8Q Nfg3+ Kf3 Bf5 Nge2 Qd7 Qcc4 Qc6 Re8 e6 Re7+ Qd7 Rg1 Nh1 b6+ Kb8 b7 Ka7 Rg2 Qb5 Rb1 a1B b8Q+ Ka6 Rb4 Bb2 Ra4 Rd2 Ra2 Rg8 Qe5 Kb6 Qh8 Bh6 Qa4 Rgd8 Rg8 Bg5 Rge8 d4 Qd1 Rd6 Nd5+ Ka6 Nc7+ Ka7 Bg2 Rc2 Qg1 Rcc6 Bf1 Rb6 Qg4 Rbb8 Qg7 Nhg3 Qh8 h1Q+ Bg2 h2 Qg7 Nc5 Kf2 Qc1 Be4 h1Q Qh8 Qcc4 Qg7 Qhc1 Kf3 Nh1 Qh2 Ng3 Qhh8 Qd5 Kf2 Qcc4 Kf3 Qbc6 Kf2 Nh1+ Kf1 Rb4 Ke1 Rbb8+ Kd1 Q4b5 Qgg3 Bh3 Bh7 Bf5 Qg4 Ne4 Na6+
1Q2Rk1b/1b2npN1/7r/Knq3BQ/5rN1/3qpr1R/1qr1BP1R/1Rn3Q1 b - - 0 1 illegal: No possible last move, all moves rejected
KbbBrn1r/n4p2/1RR1Q2B/8/4kB1b/QpPb3q/4n1NN/r2qNB2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 b5 a4 g4 h6 g3 c3 d6 h7 g2 a5 b3 h5 b2 h6 d3 a6 f3 a7 d2 Qb3+ Kf6 Kd5 Kf5 e4+ Kf4 e5 f2 e6 b4 e7 Bg7 e8Q Qd7 Qa3 b3 Nf3 g1B Ne1 Bf6 Qe6 Nc6 Rh2 Rb8 a8N Bh4 Nb6 Na7 Nc4 Ra8 Rg2 Bh2 Ne3 d1Q+ Nd2 b1B Rg6 Bd3 Ndf3 B2g3 Nh2 Nf6+ Kd4 d5 Kc5 d4 Kb6 Re8 h8B Nh7 Be5+ Ke4 N3g2 Nf8 h7 Bf4 h8B Bfg3 Qee7 Qh3 Bh6 Bf4 Qe6 Bfg3 Be2 f1N Bhf6 Bf4 Ra2 Ng3 Bf1 Ne2 Bd8 Bfg3 Qd7 Bf4 Rc6 Bfg3 Bef6 Bb8 Be5 Bc2 Bd6 d3 Bdf4 d2 Ra1 Bd3 Ra2 Qc2 Ra1 d1R Qe6+ Be5 Ra2 Rc1 Ra1 Qd1 Ra2 Ra1 Rd2 Bda6 Rd5 Bd3 Rb5 Bd7 Kb7 Rc8 Qg4 Bb8 Ka8 Be6 Be7 Rcd8 Rbb6 Bc8 Bf6 Rd5 Bd8 Rh5 Bhg5 Rh7 Bh6 Rh8 Qe6+
3qk2Q/4NpQ1/Nr2qQn1/B2n2n1/2bnRPB1/b4R2/1p2B3/1rr2bBK b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 d4 h5 g4 a5 c4 e5 f4 b3 Kf2 a4 Kg2 e3 c5 a3 d5 a2 g5 b2 d6 e4 b6 e2 c6 e1Q b7 e3 g6 e2 g7 h3+ Kh2 h4 c7 Nc6 b8Q Ra6 Be3 Nf6 g8Q Rb6 Nf3 Be6 c8B Ne5 Nd4 Nd5 Nf5 Ng6 Qg7 Rh7 Kg1 h2+ Kg2 Rh8 Na3 Rg8 Rb1 a1N Nb5 Nc2 Ne7 Nd4 Bg1 Rh8 Rc1 Rh6 Qa8 Rc6 Ra1 Rc1 Ra3 Rb1 Rf3 Rc1 Be3 Rb1 Rg1 h1R Qc2 Rc1 Qf5 Rb1 Bf2 Rc1 Qff6 h3+ Kg3 h2 Kg2 Nc3 Be3 Bc4 Bg4 Nd5 Qb8 Qa5 Bf2 Qa6 Be3 Qac8 Bf2 Qe6 Nc7+ Kd7 Na6 e1N+ Kg3 Rb1 Be2 Ke8 Rg2 Rf1 Bg1 h1B Rgf2 Rc1 Re3 Bf3 Re4 Bg2 Rf3 Bh3 Kh2 Rb1 Rb3 Nef3+ Kh1 Ng5 Rf3 Rfd1 Qb4 Rdc1 Qe1 Kd7 Qh4 Bf1 Nc8 Kc6 d7 Ba3 Qh2 Qb6 d8B Kd7 Bc7 Ke8 Ne7 Qb8 Bb6 Qd8 Ba5 Rh3 Rf2 Rb3 Rf3 Rb6 Qhh8+
2b3BQ/2q2pr1/N1R4R/n3nqk1/3PRq1p/5n2/r1bnRBKN/1Qb2Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 e4 Kf6 d4 c5 g4 a5 b4 h5 e5+ Kg5 e6 h3 b6 c3 e7 h2 e8Q c2 b5 a4 b7 h4 b6 a3 Bc4 a2 Be2 c4 Be3 c1Q Nc3 Rh7 Na4 c3 Bd3 c2 Nc5 Nh6 Na6 Nc6 b8R Qd5 b7 Rg7 Qf1 Na5 Bh7 Ba3 Qh8 Qf5 Kg2 Qd2+ Bf2 c1Q Bg8 Qc7 Rb1 a1N Rb6 N1b3 Rc6 Ra7 Ra8 Bc1 b8Q Qe3 Qb4 Nd2 Qb1 Nf3 Rb8 Rb7 Ra8 Rb2 Rb8 Ra2 Rb2 Qee4 Re2 Qee5 Re4 Qed6 Ne2 Qdf6 Ng3 Q6e5 Rg1 h1B+ Kh3 Qh7 Qc4 Nd2 Be3 Nf1 Rg2 Nh2 Nf1 Qhf5 Bh7 Rg8 Rc2 Bf3 Ng3 Bd1 Kg2 Qed6 Rd2 Bc2 Nf1 Rg6 Qe8 Kf6 g5+ Kg7 Qe2 N6g4 Qf2 Qde5 Re2 f3+ Kg1 Rh6 g6 Qef4 Qg2 Rh5 Qh8+ Kh6 g7+ Kg5 Qh3 Rh6 g8R+ Rg6 Rge8 Rg7 Bg8 Ne5 Ree6 Nhg4 Qh1 Nh2 Rh6 f2+ Kg2 Ng6 Ree6 Nf3 Nh2 f1N Bf2 N1d2 R6e4 Nge5 Qf1
2k1B1b1/R1Q1Pb2/2R1r3/Knpn1r2/bN1bN3/BB2q1Qn/3p1q1Q/1B2r3 b - - 0 1 illegal: No possible last move, all moves rejected
N1R1KBb1/1R2Pnrp/2nQ2rQ/q2k1nb1/B3q2b/4pQ2/2B3q1/Q4bN1 b - - 0 1 illegal: No proof kernel
1rq4Q/kN2Pp1q/R3rN1R/1R3nB1/5Q2/K1QQn2b/b3rp2/b1nBr3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 c4 a5 Kc2 d5 Kb3 Kd7 e4 Kc7 g4 Kb7 c5 h3 e5 f3 g5 d3 g6 d4 c6+ Ka7 g7 a4+ Ka2 h4 b4 h2 e6 h3 e7 a3 c7 f2 Qe1 d2 Bg2 d1R Qe2 d3 Bf3 d2 Nc3 Rh6 Qd3 Re1 Bd1 Na6 Nge2 Nc5 Ng3 Re2 Nd5 Nb3 Nf5 Rb8 Nd6 Rhe6 Nf6 Nh6 g8Q Bg7 Qh8 Nf5 Nb7 Bd7 c8Q Qf8 Qcc3 Qc8 Bc2 d1N Bg5 Nde3 b6+ Ka8 b5 Nc1+ Kb1 a2+ Kb2 Bh6 Nd5 Bg7 Ka3 Be5 Bd1 Bf6 Re1 h1B Rg1 Be5 Nf6 h2 Rg4 Be4 Rh4 Bd5 Rh6 h1R Nd8 Bc4 b7+ Ka7 b6+ Ka6 Rb1 Rhe1 Rb2 a1Q+ Ra2 Qb1 Ra1 Ra8 b8R Bd4 b7 Ka7 Ra2 Bb3 Rb2 Ba2 Rb5 Qc4 Rc8 Rb8 Rc6 Qc2 Qcd2 Ba1 Q2c3 Qb1 Rcb6 Qc8 Rd6 Ra8 Ra6+ Kb8 Qdd4 Nh4 Rf5 Re5 Rf4 Qh7 Qdd3 Bh3 Rb4 Nhf5 Rb5 Re4 Ne6 Re5 Nc5 Re6 Ra4 Kc7 b8Q+ Kc6 Qf4 Rb8 Rba5 Kb6 Nb7 Nd4 Re5 Ndf5 Raa5 Rc6 Re6 Rd6 Rb5+ Ka7 Re4 Re6 Rc4 Qg7 Rc6 Qh7 Ra6+
K5Bq/1Rk1pNN1/3n4/1b3r2/2b1Pq1r/B2Qp1RR/2b1RQ1n/Brb4n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 g5 Qe2 gxh4 Qd2 f4 Qe3 fxe3 Ke2 d5 Kd3 Kd7 f4 h5 g4 a5 b4 h3 c4 h4 b6 h2 c5 h3 b5 a4 g5 a3 c6+ Kd6 c7 a2 b7 Rh6 b6 Rg6 f5 Rg7 g6 Ra5 f6 Be6 c8Q Nc6 b8B+ Qc7 b7 Rh7 f7 Na7 g7 Nh6 g8R Ng4 Nd2 Rh4 Ne2 Nb5 Ng3 Bg7 f8Q Kc6 Qf2 Nd6 Rb1 a1R Rb2 Rb1 Qd8 Bh8 Nh5 Bf6 Rg1 h1N Nf3 h2 Rh8 Rb5 Ng5 Kb6 Ke2 d3+ Kf3 d4 Re2 d2 Rg3 d1B Kf4 d3 Ba3 d2 Nf7 Ba2 Ng7 Ba4 Ba7+ Kc6 b8R d1B Bd4 Bc4 Ba1 Bb2 Rb7 Bc1 Rh5 Ra5 Rh7 Bab5 Rh6 Nf6+ Ke5 Bc2 Bh3 Qb8 Bf5 Qc7 Bh7 Ng4+ Kd4 Qc8 Bg8 Qf5 Rh3 Qf4 Rg6 Ng3 Rg5 h1Q Rg6 Nh2 Rg5 Qhf3 Rg6 Nh1 Rgg3 Qh6 Ke5 Nc8 Qd3 Nd6 Rb8 Kc7 Rb7+ Kc8 Kd4 Qff4 Kc5 Qh8 Kb6 Ba6+ Ka7 Rf5 Rb6 Bab5 Ka8 Kc7 Rb7+
3brB2/k2Np3/bPn1Bb2/3K2np/1RrR2nQ/nq5Q/1N1r1q2/B4N1B b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 b4 d5 c4 Kd7 f4 Kc7 g5 Kb7 c5 d3 Kc3 e3 Kd4 h3 g6 d2 f5 a4 b6 h2 g7 a3 b5 e2 f6 e1B f7 a2 Ke5 d4 Nf3 d3 Bb2 Nf6 g8B Ra4 Nc3 Rc4 Na4 Nh7 Bg2 Ng5 Rb1 a1N c6+ Ka8 c7 Ba6 c8Q Nc2 b7+ Ka7 Rf1 h1N Qh3 Nf2 Nh2 Na3 Ba1 Qb6 Bh1 Bg7+ Kd5 Nc6 f8B Ng4 b8N Bf6 Be6 Qf2 Nd7 Rg8 Qc2 d1R Nb2 Ba5 Qa4 Rd2 Rfd1 Bd8 Nf1 Rh8 Bg7 Re8 Bf8 Rc3 Qf4 Rc4 Qfg3 Rdc2 Qgh4 d2 Na4 Ra2 Rb4 Rb2 Re1 Ra2 Re4 d1Q+ Rd4 Rd2 Nb2 Qb3 b6+
3R1rB1/bRBPQ3/2N3bb/2NQ1qpR/p1K3Q1/5r1n/3bk2n/3nqq1Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 Ke2 Ke5 h4 Kd4 e5 c5 e6 a5 d3 f5 b6 g5 e7 g3 e8R a4 h5 g2 b5 c3 h6 f3+ Kf2 f4 b7 c4 h7 c2 b6 c3 Qe1 Bf5 Rh4 Qc8 Rh5 Nh6 Qe7 Nc6 b8Q Na7 b7 Nb5 Nd2 Bg6 Rb1 Qf5 Ne4 Ng4+ Ke1 f2+ Ke2 Bh6 Nc5 Ra6 Qc8 Rf6 b8Q Rhf8 h8Q Nh2 Qg8 R6f7 Qa8 Rf6 Ba3 c1B Qgf7 c2 Nf3+ Kc3 d4 Bd2 d5 c1B d6 Bb2 Qfd5 g1N+ Kd1 Bbc1 Rd8 Nh3 Nd4 f3 Bc4 R6f7 Nc6 f1Q+ Qe1 Qf2 Qe7 Be3 Qce6 Bcd2 d7 Qh4 Ba2 f2 Ke2 Kc2 Rb2+ Kc1 Qee4 Nc3+ Kd3 Kd1 Kc4 Ke2 Rb7 f1Q Bb4 Qg3 Ba5 Qge1 Bc7 Nd1 Qed4 Qe5 Qh1 Rf3 Qg4 Qf5 Kb5 Rf6 Bg8 Rf7 Kc4 Rf8 Ne4 Bc5 Qa5 Bb6 Qd5 Ba7 Nc5+
R2b3q/3pqrB1/qR1n2BQ/n2nr3/5Q2/Kp1kN1B1/N3rPbB/2R2r2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb2 Ke4 h4 b5 a4 e5 f6 g5 a5 g3 a6 g4 h5 d3 f7 b3 h6 b4 h7 d2 c5 g2 c6 g3 c7 Nh6 a7 Qe7 Qh5 d1R Ra4 Bb7 c8R Nc6 Bc4 Na5 Rd8 Nf5 Be3 Nd6 Nf3 g1Q Be2 g2 Bc4 Rf1 Bh6 Qh2 Nh4 g1Q Rb8 Qg6 Bg7 Qge6 Bd5+ Kd3 Qh6 e4 Nc3 e3 Ng2 e2 Na2 e1R Ne3 Bc6 Rb6 Re8 a8Q Re2+ Nc2 Rg8 h8B Qhh4 Be5 Rg7 Qb8 Qg6 Be6 Bg2 Bh2 Rh7 Bd4 Bg7 f8B Bf6 Ra3 Rf7 Bg7 Re5 Ne3 Qh3 Qf4 Qh8 Qh6 Bg5 Bg4 Qge6 Ra4 Qc4 Bh5 Qa6 Nd1 Bh4 Be3 Bf6 Bef4 Bg5 Bfg3 Bf6 Kb1 b2 Bg6+ Rf5 Qb7 Qe4 Bh7 Nc6 Bg1 Bd8 Qf6 Qa5 B1h2 Re1 Qe6 Qh4 Qh6 R8e2 Nc3 Qe7 Ka2 b3+ Ka3 Qa7 Raa6 Na5 Bg6 Rg1 Ne3 b1N+ Ka4 Rd1 Na2 Nc3+ Ka3 Ra1 Qf3 Nd5 Qg4 Qb7 Ra8 Qa6 Qgf4 Rb1 Rc1 Ra1 Rcc6 Rf1 Bh5 Rg5 Rc1 Re5 Bg6+
1B1N2b1/nNQp1Q2/1b2r3/B3b1R1/np5q/1rq1q2Q/BQ2P1KR/2k1b2r b - - 0 1 illegal: No possible last move, all moves rejected
1b6/1b1p1QK1/Nb3BNr/R1PrN2q/1b1pQ3/n1R1nR1r/2q1k2q/4R2B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 g5 b4 f5 c3 a5 b6 a4 b5 a3 b7 g3 b6 a2 h5 f3 h6 g4 h7 f2 Bb2 f4 Bg2 f1R e4 f3 Qc1 Kd3 c4 f2 Nc3 Ra3 Nb5 Qe8+ Kf5 Bb4 e5 Nf6 e6 Nd5 c5 Ne3+ Kf6 Na6 b8Q Qh5 e7 Bb7 e8R Nc7 Nf3 Ke2 Ne5 Rb3 Bd5 g2 Qa8 g1B Kg7 g3 Rh3 g2 Rf3 Bh2 Qc4+ Rd3 Rc1 a1B Rc3 Ba5 Bc1 g1Q+ Rg3 Re1 Bh1 f1Q Qf7 Qff5 Re7 Qgf2 Rf3 Bg3 Qae8 Qfh2 Bd2 Rf1 Be1 Bf4 Bh4 Bb2 Qa8 Ba3 Bf6 B3b4 Re8 Rd2 Re7 Qc2 Qae8 Rd3 Qa8 Ncd5 Nc7 Nc4 Na6 Na3 Qae8 Ne3 Qa8 Bc8 b7 Bb6 b8R Rf2 Qc6 Bb7 Ra8 Rf1 Qe4 Re1 Ng6 Bb8 Ne5 Rf1 Rh3 Rf5 Rf3 Rc8 h8N Rc6 Nhg6 Rg5 Ng4 Rd5 Re5 Rc8 Re7 Rh8 N4e5 Rh6 Nc7 Rd1 Ra5 Rg1 Re8 Rg3 Na6 Rh3 Qh4 Ng2 Ng4+ Kd1 Re1+ Kd2 N4e5 Ne3 Ref1 Ke2 Qe4 Ba8 Rd1 Bb7 Re1+
Kb2N2q/1n1pr3/1r1QR1b1/BBp1bq1N/1n1k4/1Rr4R/P2B1q1Q/R1q5 b - - 0 1 illegal: No proof kernel
Q5N1/RqPrn1QN/qb4Nr/rRpQ4/1p1B2kb/8/3nb1K1/NB3r1n b - - 0 1 illegal: No proof kernel
bq2Bn2/1Rp1n3/QR2Qnr1/1N3rk1/R3R3/1b3nq1/1KPN1p1N/r3b1B1 b - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 d4 e5 Kd2 Ke7 Kc3 Kf6 b4 a5 g4 h5 b6 e4 d5 e3 d6 f2 b5 h3 b7 h4 b6 a4 d7 h2 Kb2 e2 Bg2 f1R Bd5 e1N Nf3 a3+ Kb3 a2 Nfd2 h3 Qf3+ Kg5 Kb2 f5 Qa3 f4 Qe7+ Nf6 Na3 f3 Bf7 Rg8 Qe6 Rg6 Be8 Bb4 Nb5 Ra3 Rg1 h1B Rg3 Nc6 b8R h2 b7 Ne7 Rg2 Nh7 Re2 Nf8 Re4 Bg2 Qa6 h1N Qe6 Nf2 Qa6 Kh4 g5+ Ng4 Qe6 Rg7 g6 Kg5 Qa6 Nf6 Qe6 Rg8 g7 Rf2 Bh5 Qe8 d8Q Qg6 Qa6 Be6 Qc8 Bb3 Qce6 Qe8 Bg6 Qd8 Bh5 Qd6 Be8 Qg3 Ra8 Rf1 b8R f2 Ra7 Nf3 Rb6 Ra5 Rab7 Bh1 Nd4 Rf5 Nb5 Rh8 g8N Rh6 Qe5 Rd1 Qe6 Rg6 Nh6 Rf1 Ng4 Rd1 Nb1+ Bd2 Nh2 Rg1 Rf4 Be1 Be3 Rf1 Nd2 Bg2 Bc5 Rg1 Bd6 Rh1 Rb1 Rf1 Re4 a1Q+ Kc1 Qd4 Ra1 Qd5 Be5 Qd8 Raa4 Qb8 Kb2 Ng1 Rh4 Bc6 Rhe4 Nf3 Ra7 Ba8 Rab7 Rh1 Reb4 Qh4 Ng4 Rg1 Bh2 Qg3 Re4 Rf1 Nb1 Ba5 Bg1 Rc1 Nh2 Be1 Nd2 Rd1 Ra7 Ra1 Rab7
7K/2p1Q3/br1RbBq1/1Bq5/Nq1r2NN/RnNnQ3/1Pk3rp/b1b3Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Ke6 Ke4 a5 g4 h5 d4 f5+ Kf3 Kd5 g5 a4 g6 h3 e3 a3 g7 h2 b6 a2 b7 c3 Bg2 Kc4 e4 h4 e5 c2 d5 Kb3 d6 h3 d7 Rh4 e6 Qf6 d8Q Na6 b8Q+ Nb4 e7 Ra6 e8N Nh6 g8N Rb6 Qb7 Nd3 Ne7 Qg6 Ng8 Be6 Ne2 Bb4 Nd6 Bd2 Rf1 h1Q Qe7 h2 Qe4 Be3 Rf2 Qe1 Bf1 Qb4 Nf6 Rg4 Qe5 Rg2 Nbc3 Bd2 Qe1 Be3 Bd2 c1Q Na4 Qcc5 Ng4 Kc2 Bc3 Bd2 Rd1 a1B Qe3 Bc1 Bg7 Ng8 Bd4 Nf6 Bc3 Ne4 Bf6 Bc4 Nec3+ Nd2+ Ke2 Nb3 Kf3+ Bd2 Be2 Be6 Rf1 Bc1 Rg1 Nf2 Bb5 Nd3 Rf1 Re2 Qg1 Re4 Qee3 Rd4 Kg2 f3+ Kh3 f4 Kh4 f2 Nf5 f3 Rfe1 Qg8 Kh5 f1B Kh6 f2 Nh4 Qgg5+ Kh7 Qg6+ Kh8 Be2 Ne5 f1R Ng4 Rf2 Rf1 Rg2 Rf5 Qd6 Rd5 Qdc5 Rd6 Bf3 Rf1 Bb7 Rf3 Ba6 Qe2+ Nd2 Na2 Nf4 Ra3 Nd3 Qee3 Nb3 N2c3
B1RR2nB/2p3Nr/K1bq1B1b/R2r1Q1P/6qr/Rn1p2k1/n1Q4N/1n4q1 b - - 0 1 illegal: No proof kernel
1Q1K4/1rpb3q/R2Bq1Rk/3pb2r/BBR5/N3nQ2/n3PRrN/bn2b3 b - - 0 1 illegal: No proof kernel
B3Nr2/1Bpn4/3NQ1r1/PK1Rb3/pB5n/3NbR1N/2q3nr/1bqnQ2k b - - 0 1 illegal: No proof kernel
KNBr4/2p1k2q/P3n3/Nq1RB1N1/3R1p2/n1Q1brqb/B2N3Q/b1n1n3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 d4 g5 h4 b5 a4 f3 Ke3 f4+ Ke4 g3 h5 b3 a5 f2 d6 g2 Kd5 g4 e4 b2 a6 g3 e5 b4 d7+ Kf7 h6 b3 h7 Qg5 d8N+ Ke7 Ra5 Qg7 e6 Nh6 Nh3 g1B Nb7 g2 Qe1 Bd7 Qc3 Nf5 Bc4 f1Q Nd2 b1N Ng5 b2 Ba2 Nc6 Kc5 Rg8 h8Q Be3 Qh2 g1N Rb5 Qe2 Na5 Nf3 Rd1 Na3 Kd5 b1Q Bb2 Rd8 Ba1 Kf6 e7 Ng3 e8B Bh3+ Bd7 Qbh7 Bb2 Bd6 Bc8 Be5+ Kc5 Ke7 Ba1 Na7 Rb4 N7b5 Kc6 Bf6 Kb7 Ne1 d5 Nd4 Ka8 Ne6 Rd4 Qb5 Bb2 Ne2 d6+ Ke8 d7+ Ke7 Rd5 Nc1 Ba1 Rde8 d8N Be5 Ndb7 Rd8 Nc5 Rge8 Nd7 Qgg6 Nf7 Qg3 Nb8 Bg7 Re5 Rd3 Ng5 Red8 Rf5 Bb6 Rd5 Rf3 Ndb3 Be3 R1d4 Be5 Nd2 Qd7 Re4 Ba7 Qb3 Qb5 Ra4 Bed4 Bc3 Be3 Be5 Bad4 Qd3 Bc3 Rad4 Ba1 Qc3
3n2B1/qrpb1pr1/1B6/4Bn2/q1kbKR2/3R1Q1r/2NQBPb1/1q1NQb2 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 exd4 a4 g5 axb5 gxh4 Rh3 d5 Rh1 dxc4 Kd2 Ke7 e4 Kd6 b4 h5 g4 a5 e5+ Kd5 g5 a4 e6 h3 e7 a3 e8Q c3+ Kd3 c2 b6 h4 g6 a2 b7 h2 b5 h3 g7 Bc5 b6 Qd7 Be2 Rh7 Qf1 Ne7 g8B Nbc6 b8B Rg7 b7 Ra7 Bh7 Nd8 Bf4 c1Q Bg8 Qa4 Qe1 Bd7 Nf3 Nf5 Qd2 Qf1 Rg1 h1R Be5 h2 Rg4 Bb6 Re4 Kc5 Nc3 Qb1+ Qc2 Kb4 Rf4 Kc5 Ke4 d3+ Nd4 d2 Qe6 d1B Qd3 Bb3 Nd1 Bc4 Nc2 Kb5 Qd2 Bd4 Bh5 Bf1 Be2+ Kc5 Qf6 Qb2 Rc1 a1Q Rb1 Qb6 Rb3 Qb1 Rd3 Kc4 Qe1 Ra5 Qg5 Rb5 Ba7 Qba5 b8Q Rb7 Bb6 Qa7 Qg4 Rg1 Na1 h1B+ Qf3 Bhg2 Nc2 Rh1 Qa8 Rh3 Qd2 Qb8 Qaa5 Qa8 Qe1 Qa7 Qad2
Rk5r/1P1QrNQ1/2bR1K1B/b2q1p1b/q2nR3/1rNq1nr1/2Bp4/2QQ4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 f5 c4 a5 b4 h5 c5 h3 e5 h4 g5 a4 g6 f3 c6 a3 g7 h2 e6 h3 e7 a2 e8Q f2 Qd2 Nd7 b6+ Kb8 b7 Ra3+ Qc3 Rb3 b5 Ne5+ Ke2 d3+ Ke3 d4+ Kf4 d2 Qc2 d1B Nf3 d3 Qd7 Bb4 Ng5 Bh5 Nc3 Nf3 Nf7 Ne7 g8Q Ba5 Qg7 Qg8 Bg2 f1Q Qd1 Qd8 Rg1 h1R Bd2 Qe2 Re1 h2 Bf1 Qg2 Re4 Rg1 Be2 h1R c7+ Ka7 b8R Nc6 Rc1 Bb7 c8Q a1Q Be3+ Ncd4 b6+ Ka6 Qc5 Bc6 b7 Qa4 Qc4+ Kb6 Ra8 d2 Bd3 Qe2 Rb1 Rg3 Bc2 Re1 Rc1 Qd3 Ra1 Nh2 Ke5 Qg8 Ra2 Nf3+ Kf6 Re2 Rd8 Ka7 Bh6 Re1 Qde6 Re2 Rd6 Kb8 Qd7 Re1 Rh4 Re7 Re4 Qd8 Qc5 Qb6 Qa3 Qc5 Qac1 Qd5 Rb2 Ra3 Rb6 Rb3 Ra6 Rg4 Ra7 Rg3 Ra8#
1n1N2k1/1P3B1N/1bB1K3/q2r1pN1/q6b/nQ2R1rR/p2Qb3/B1B1qn1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 h4 Kf7 b4 g5 e4 d5 c4 a5 c5 f3 Kg3 f2 e5 a4 h5 d3 c6 d2 h6 a3 c7 a2 b6 d4 b5 d3 h7 Ba6 c8N Be7 b7 Nf6 b6 Nfd7 Na7 Rg8 h8B Rg7 e6+ Kg8 Rh7 Ne5 Nc6 Nc4 Nc3 Na3 Nf3 Bb5 Bg2 Ra5 Qc2 d1Q Qd2 Qh1 Ne4 Rg6 Rh3 f1N+ Kf2 Bf6 e7 Ba6 e8B Rd5 Rb1 Qc7 Rb3 g3+ Ke1 g4 Nfg5 Rg7 Nh7 Bh4 Nd8 Rg6 Bf3 g2+ Kd1 g1B Neg5 g3 Ba1 g2 Be4 Rc5 B4c6 Rd5 Rc3 Bgf2 Rb3 g1Q Re3 Nd7 b8Q Qa7 Qg3 Nb8 b7 Bb5 Rc3 Qa5 Bf7+ Kg7 Qe2 d2 Qd3 Ba6 Ke2 Bc4 Qf4 Bb5 Rh3 Bb6 Qdc4 Kh8 Rce3+ Rg7 Qd4 Qg3 Kd3 d1Q+ Bd2 Qda4 Bc1 Ba6 Qb5 Qge1 Qc4 Rb5 Qb2 Rc5 Kd4 Rg8 Qcb4 Be2 Qb3 Rg7 Nge6 Rg3 Neg5 Q4b5 Qd2 Kg7 Bcd5 Qba4+ Ke5 Kh8 Kf6 Rb5 Bc6 Rd5 Bg6 Kg8 Ke6 Rg4 Bge8 Rg3 Bf7#
q4Q2/rPb2r1p/R3bpqr/3B2B1/3k1B1n/5Rq1/2B1RQbN/qN1Kn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 g4 Kd6 c4 Ke5 b4 a5 c5 d5 g5 h3 b6 f3 g6 f6 b7 d3 c6 d2+ Kf2 h2 g7 d4 b5 d3 c7 a4 b6 a3 Bh3 a2 Qe1 d1Q Ne2 d2 Qf1 Qe1+ Ke3 d1Q Rg1 h1R Rg3 f2 Bf5 Be6 c8Q Bd6 Rf3 Nc6 b8B Rh6 b7 Nge7 g8B Ra7 Bf7 Qg8 Qf8 Nd4 B5g6 Qa5 Ng1 Bc7 Qe1 f1B Qf2 Qc2 Bf5 Bc8 Bd5 Bg2 Bd2 Be6 Bg6 Ndc6 Ke2 Nb4 Ke1 Nf5 Bg5 Qc3+ Kd1 Nh4 Bf5 Qe3 Bg6 Kd4 e5 Nd3 Bge4 Ne1 Bc2 Bg4 e6 Qg6 e7 Be6 e8R Rg8 Re7 Rg7 Re8 Rf7 Re7 Bb6 Bbf4 Qa6 Rg3 Bc7 Nf3+ Kc5 Nh2 Kd4 Rf3 Qa5 Rd7 Qa4 Rd6 Qe8 Ra6 Qb8 Nc3 Qa8 Rc1 a1Q Rb1 Qa2 Rb2 Qa5 Nb1 Qa1 Bcb3 Qb8 Re2 Qa8 Qf1 Qf2 Bc2 Qg3 Qf2+
Q1N1BR1B/1p1K1B2/1p2Qr2/4rRn1/nrq1B3/1Rqb1Pr1/4Nb2/1qk4n b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 b4 cxd4 h4 gxh4 b5 Kf7 b6 axb6 Bb5 Ke8 Bc4 Nc6 Bf1 Nb8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 a4 h5 g4 e5 c4 d5 g5 h3 g6 h4 g7 d3 a5 d2 f3+ Ke3 a6 e4 a7 h2 c5 d4 f6 h3 c6 d3 c7 Bc5 f7 Qd4 f8Q Na6 Be2 Bf5 c8B Rh4 Ra3 Qc3 Qf7 Nh6 Qd7 Nf7 g8B Ng5 Bh7 Rg4 Rb3 Rg3 Ba3 Rb8 Qc2 d1R a8R d2 Bb2 Rf1 Qc6 d1Q Be6 Qd5 Na3 Rf8 Bf7 Rb1 Qe6 Qd4 Be8 Rf6 Bc4 Qdd3 Rc8 Bd4 Ba1 Nc5 Ne2 Na4 Qa2 Bg6 Bb2 Kd2 Rc5 e3 Rf5 Qe4 Bd5 Qg4 Nc4+ Kc2 Rg1 h1Q Nd6 h2 Nc8 Bc5 Re1 Qf1 Bg8 h1N Bgf7 Qg1 Be4+ Kd2 Nf4 e2 Rc1 e1R Ne2 Bf2 Qa3 Qe5+ Kc4 Qc3+ Kd5 Qh4 Kd6 Bh7 B4c6 Qhc4 Kd7 Qf1 Rd1+ Kc2 Rdd5 Qg1 Rf4 Bd3 Rdf5 Qf1 Be4 Kd1 Nd4 Re3 Ne2 Kc2 Bc6 Re5 Be4 Kd2 Qc5 Qg1 Qa5 Qc1 Ba1 Rb2 Qa8 Qb1 Rh4 Kc2 Rh8 Kd1 Rf8 Kc2 Ra3 Rb4 Rb3 Rg6 Bd5 Re4 Ng1 Qe5 Qe7 Kc1 Qe6 Qeb2 Bc6 Q2c2 Bh8 Q2c3 Bd5 Re5 Be4 Rf6 Ne2+
1knQ2BR/rp3P2/1qnqN3/Q1r1B2N/rqn1Q2K/b7/4Q1bp/3qRN2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 f4 e5 Kf2 c5 a4 Kc7 g4 h5 f5 b3 f6 c4 a5 h3 Kg3 h4+ Kf2 c3 a6 b2 f7 c2 g5 h2 g6 h3 Kg3 e3 a7 e2 g7 e1N Qe2 e4 Bf4+ Qd6 Nd2 b1Q Be5 Ne7 g8Q c1R Qg6 e3 Qe4 Nc2 Bg2 Qb4 Nf1 Na3 Rb1 Rc3 Re1 Rc5 Bf3 Rg8+ Kh4 Nc4 Bh5 Qb3 Bg6 Nbc6 Bh7 Rg3 Bg8 Qb6 Q2d3 Bd7 Ne2 Nc8 Nf4 e2 Nh5 Be8 Qc2 Ra3 Qa2 Ra4 Qb2 Rb8 a8Q Bd7 Qa5 Ra8 Qbd2 Kb8 Qde3 Ra7 Q3f3 Qdc7 d6 Bg4 d7 Qd6 Qf2 Bf3 d8N Bg2 Ne6 Be7+ Ng5 Bf8 d5 Be7 Ra1 Bf8 Ne6 e1Q Rb1 Qeb4 Re1 Bh6 Qfe2 Bc1 Qh7 Ba3 Qhe4 Qdc7 d6 Qd7 Rd1 Qdc7 d7 Qd6 Rg1 h1Q d8Q h2 Re1 Bf3 Rg6 Bg2 Rh6 Qg1 Rh8 Qd4 Rh6 Qd1 Rh8
b1K5/P3bq2/n2b1k1r/1RBp1B1p/rr1nR3/2n1N2r/2NqR3/1NQQR3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 d5 g4 e5 a4 h5 c4 b5 f4 h3 a5 h2 a6 b3 g5 b4 c5 b2 g6+ Kf6 g7 b3 c6 Bd6 c7 Ra7 Nf3 Bb4 Be3 Kf7 f6 Qd7 f5 Rh7 Ra4 Bd6 Ne1 Nh6 g8N Bb7 c8Q Ba8 Ne7 Qc7 Rg1 h1R Nc2 Rh3 Be2 Qd7 Re1 Qe8 Bg4 e4+ Kd2 d3 Kc3 d2 Kd4 Rh8 Ra5 Qf8 Rb5 Rh7 Bf2 e3 Qc4 e2 Qc7 Be5+ Kc5 Bd6+ Kb6 Qg7 Bc5 Qf8 Rg1 e1B Rf1 Bh4 Re1 Bh2 Qf4 Bg5 Qf1 Bd6 Qc1 d1N Qf3 Nc3 Qfd1 Rc7 a7 Na6 Re2 Rb7+ Kc6 Rb8+ Kd7 Re8 Nc8 Re4 Nb6 Ra4 Nc4 Bh4 N4e3 Qg7 Nba3 b1Q Kc8 Qa2 Nb1 b2 Re1 Qc4 Re2 Qd4 Re1 Qd2 Re2 Kf8 f7 Ke7 f8R Qf7 Re8+ Kf6 Re4 Bg5 Nba3 b1R Re1 Rbb4 Nb1 Kg7 f6+ Kg6 Bd7 Nf5 Re2 Nd4 Bf5+ Kh6 Re1 Bh4 Re2 Kg5 Re1 Rh6 Re2 Qg6 f7 Kf6 f8R+ Qf7 Re1 Be7 Rg8 Bg3 Rgg4 Bf4 Rg2 Bfd6 Rge2
b1N1rq2/prbQnnp1/5N2/3Bq1b1/2rRP1K1/1k6/b2N2NB/QB2q2R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 h4 Kd5 c3 Kc4 e4+ d3 h5 f5 b6 d5 b5 f3 Kg3 f2 b7 f4+ Kg2 f3+ Kg3 d4 h6 Nd7 b8N Bb7 h7 Qe8 b6 Qe5+ Bf4 Ne7 Ne2 d2 Ra2 d3 Nc6 Rc8 Ra5 Rb8 Rd5 Ba8 b7 Re8 Qe1 d1R b8N d2 Rd4+ Kb3 c4 Rc1 c5 d1Q Qd2 Rg8 h8Q Rc4 Qh6 Qc1 Qf6 Qe1 Kh4 g3 Kg4 g2 Bh2 g1B Nf4 Rh8 Bd3 f1B Ng2 Be3 Bc2+ Ka2 Qd1 f2 Nd2 Bg5 Bb1+ Kb2 Qa4 Rh3 Qf7 Rb3 Qa2+ Kc3 Qa1+ Rb2 Qe6 Bd3 Qd6 f1Q Qc7 Bc2 Qb7 Bb3 Qb5 Nf5 Ne7 Ba2 Nc8 Bd6 c6 Ne7 c7 Qf8 Qc6 Kb4 Qd5 Ka3 Qe6 Rb7 Qf5 Nc5 Nd7 Ne6 Nf6 Nd8 Qd7 Nf7 Nb6 Rbb8 c8B Bc7 Bb7 Kb4 Bc6 Rb7 Nc8 Ka3 Bd5 Kb4 Nf1 Kb3 Nd2+
1B1nRBBK/5b1n/n3BQ2/1n2r2r/1q1nN3/1Rp5/k2N1pPR/1Qb1b1n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 h5 d4 a5 b6 f5 d5 c5 b7 f3 b3 a4 d6 h3 d7 a3 Bd3 h4 Rh2 f4 Ra2 c3 Bb2 f2 Qe1 f1N Ra1 c4 Qd2 f3 Qe3 a2 Qa7 f2 Nf3 c2 Na3 c1B Kf5 Nf6 Kg6 Na6 b8R+ Qb6 d8Q Ne3 e5 Rh5 e6 Nd1 e7 Nh7+ Bf6 Nc3 e8B Be6 Bg7 Nb5 Rb1 a1N Qg5 Bf7+ Kf5 Nc2 Nd2 Ncd4+ Ke5 c3 Ne4 Ne6 Bd7 Nd8 Nc4 Qb7 Ncd2 Ka3 b4 Ka2 Bc2 Be7 Qf5 Bg5 Rb3 Bh6 Qb6 Be3 Nb1 Bed2 Bf8 Be1 Be6 Ra7 Qd6 Qb6 Qd1 Re7 Qd3 Qa5 Nbd2 Qa4 Rh1 h2 Rc8 h3 Ra8 Na3 b5 Qb4 b6 Nb5 b7 Re8 b8B Re7 Rg1 h1N Bd1 Ng3 Rh1 Ne2 Rh2 Ned4 Bc2 Ng5 Kf6 Nh7+ Kg7 Re8 Kh8 Re7 Rh1 h2 Qf6 Re8 Bd1 Re7 Bdg4 Re8 Bc4 Ree5 Bd7 Nc7 Bde6 Ncb5 Rg1 h1N Bcd5 Ng3 Rh1 Nge2 Rh2 Bg6 Bg8 Ng1 Bde6 Rhg5 Ra7 Bh5 Re7 Bf7 Re8 Rh5 Qb1#
2nbNk1N/6Q1/1n2B2K/n2B4/1pn1Q2p/Q2nr1rn/2RP1Rb1/q1BQ2b1 b - - 0 1 illegal: No possible last move
2b1n1RK/rqBr4/2B3b1/b1R3n1/p3nR1P/R1NNkQ1b/1p1b2B1/Q2b4 b - - 0 1 illegal: No proof kernel
Nr1r1Qb1/K2N3R/4r3/bbB2pP1/1Q1Q3p/Q1B2rnr/B3Rq1k/n5r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 a5 b4 h5 e4 d5+ Kd3 f5 c4 a4 b6 f3 c5 f2 b5 h3 b7 h4 c6 h2 c7 a3 g5 a2 b6 Ra3+ Nc3 Nf6 Be3 Nh5 Qc1 Nc6 b8Q Na5 b7 Nb3 Na4 Be6 Nb6 Bb4 Na8 Ng3 c8Q+ Qd6 Q8c5 Bg8 Bd2 Ba5 Bc3 Qc7 Qbf8 Qb6 Qb4 Rh6 Be2 f1B b8B+ Rd6 Ba7 Re6 Qd1 Kf4 e5 Qc5 Rc1 a1R Nf3 Rb1 Rg1 h1R Rg2 Rh3 Rc2 Qc7 Bc5 Na1 Rb2 Qh7 Qda4 Rb3 Qaa3 Qa7 Rh2 Bg2 Bd1 Bf1+ Rhe2 Kg4 Qba4 Rb8 Rb7 Rb3 Rh7 Kf4 Bc2 Kg4 Bb1 Qb6 Qd7 Qa7 Kd2 d3 Ke3 d2 Ba2 d1R Qb5 Re1 Qbb4+ d4+ Kd3 Reb1 Kc4 d3 Qd6 d2 Qd4+ Ne4 Kd5 Kg3 Kc4 d1R Kd5 Ree8+ Kc6 Re1 e6 Red8 Ne5 Rbd1 Bd2 Rf3 e7 Rc1 e8Q Rb1 Re3 Kh2 Bc3 Ng3 Nd7 Rbd1 Qf8 Bb5+ Kd6 Rg1 Re5 Rde1 Re8 Bbc4 Kc6 Re6+ Qdd6 Rd3 Bf2 Rh6 Re2 Qe3 Qdf6 Qf4 Bc5+ Qf2 Q6d6 Rf3 Qdf6 Rb6+ Kc7 Bb5 Qh8 Rhe6 Qhd4 Rbd6+ Kb7 Rb6+ Ka7 Rbb8 Bd2 Re5 Be1 Re6 Bc3
3knqnR/2b5/3b2bN/1RNQp1p1/BBb1P2b/3b4/1Bn2r1r/1BK1R1Q1 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Qd3 f5 Bf1 f4 Qg3 fxg3 Kd2 g5 b4 e5 f4 d5 e4 a5 c4 g2 h4 g3 f5 d3 f6 a4 h5 d4 c5 a3 c6 a2 c7 Bg4 c8B Be7 b6 Qd6 b5 Rh6 b7 Be2 b6 Ra7 f7+ Kd8 f8B Na6 b8Q Nc7 b7 Ne8 Nf3 g1B Nc3 g2 Nh4 Bf2 Rb1 a1N Na4 g1B Qa8 Nc2 Nf5 Bh4 Nc5 Ra2 b8Q Rf6 Nh6 Rf2 Bb2 Qf6 Na4 Bd6 Nc5 Bc7 Bd6 Qf8 Qb6 Rh2 Re1 Rf2 Kc1 d2+ Kb1 d1B Qd5 d3 Kc1 Rh2 Bd7 Rf2 Ba4 d2+ Kb1 Bb5 Bd3 Be2 Rh3 d1B Kc1 Bc4 Rg3 Nb4 Bb1 Nc2 Rb3 Bed3 Rb5 Bf3 Na6 Bg4 Bb4+ Bd7 Qa7 Rh2 Qb6 Bc5 Qa7 B5d6 Qg1 Bf5 Nc5 Bc8 Ng4 Be6 h6 Bf7 h7 Bg6 h8R Ne3 B2c3 Raf2 Bb2 Nc2 Nh6
1n2n2b/1N1n2nk/7Q/1RpR1p1R/rN1r1bnr/n1R4Q/1KB2P2/1Q2B2q b - - 0 1 illegal: No possible last move, all moves rejected
1B2Nk1b/2r5/bR1Q1n1n/Rp1R1QK1/nqn5/2Bn4/pr1Pn1Nr/3B3R b - - 0 1 illegal: No proof kernel
3n3N/RbR2R2/1bb1B2p/kP1r2bq/B1K2p1r/r2B3Q/4QBn1/bN5b b - - 0 1 illegal: No possible last move, all moves rejected
r1r3n1/B1qBr3/RQ2N1P1/6p1/K1N3k1/2Qprnbr/RN1B2r1/1b1nB3 b - - 0 1 illegal: No proof kernel
2Q1R1K1/1Nb2Nb1/b3p1r1/4R1bR/3nbpBr/1Q2P3/1NBn1R2/qk3nb1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 g4 g5 a4 b5 axb5 h6 b3 Qd7 Bb2 Qd5 Bf6 gxf4 g5 Qd6 g6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 f5 h4 a5 d5 c5 b6 a4 g7 f3 h5 a3 d6 g4 h6 e6 h7 a2 b7 g3 d7 g2 Qc1 f2 Rh4 Nh6 g8B Qa5 Kf6 Nc6 b8R+ Bb7 d8N Nd4 Rf4 c3 Nd2 c2 Nh3 Kc3 b4 g1B b5 c4 b6 Ng4+ Kf7 Bd6 Ng5 Nh2 Bh3 f1B Rf2 Bc7 Bg4 Be4 b7 Qa3 Rb1 a1B Rb5 Qa4 Qd1 c1B Re5 Kb2 Kg7 c3 Nc4+ Kb1 Ngf7 c2 Nb2 Ra5 Rc8 Rb5 b8Q Qa8 Qd3 Bg5 e3 f4 Qb3 c1N Nb7 Ra5 Rf8 Ba6 Qc8 Nf1 Re8 Rb5 Nfd8 Ra5 Bf7 Ra2 Bfh5 Qa7 Qc4 Ncb3 Nf7 Nbd2 Qb3 Ra5 Bd1 Rb5 Bhg4 Qa8 Nh6 Rg8+ Kf7 Rg6 h8R Rd5 Kf8 Qa7 Rh7 Rd7 Rh8 Rh7 Nf7 Rh4 Rh5 Be2 Rd5 N4f3 Nc4+ Bb2 Rb5 Qa1 Rc5 Kc1 Rd5 Bg7+ Kg8 Nd4 Nb2 Ba6 Re5 Kb1 Bc2+
4b1Q1/3rB1N1/R1pk3b/n4bn1/b5nR/PqRpN3/bNB3K1/Rb1r3Q b - - 0 1 illegal: No proof kernel
b1bRnN1n/r2rP1k1/1bp3q1/B2pbRQ1/bb6/Q2K2N1/4B3/NR1R2n1 b - - 0 1 illegal: No proof kernel
1b1B1N2/2Qp4/n5q1/1bbRpP1B/2b1Qk2/N1rrN1n1/1N3nbK/1b1B1R2 b - - 0 1 illegal: No possible last move, all moves rejected
1r3rrR/3pP1b1/b2Q1rrn/4R1Q1/2kq3B/nQ3NK1/2N1NpB1/2Nrb3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Ke6 c4 h5 e4 a5 b4 f5 g5 f3 g6 a4 c5 d3 g7 f4 b6 a3 e5 Kd5 b5 a2 b7 h3 e6 h4 b6 d2 c6 h2 e7 h3 c7 Nh6 g8N Na6 b8Q Nb4 b7 Nc2 Bb2 Na3 Bg2 Kc4 Bf6 Bg7 Ne2 Qf8 Bg5 Qf6 Nbc3 Ra6 Qc1 d1R Bh4 Qd4+ Qe3 Rc6 Nc1 Rg6 Nf6 Rf8 Nfe4 Rff6 Re1 h1R N3e2 h2 Ng5 Rg1 Rb1 a1B Rb5 h1R Re5 Qe4 Qd2 Bc3 Qd6 Rd2 Rd1 Rb2 Rdd5 Qd3 Ra5 Bd2 Ra8 Qc3 Ne6 Rd1 N6d4 Rhg1 Nc2 Rb6 Qa7 Rb2 b8Q Ba6 Qe3 Qd4 c8N Ba5 Qbb6 Bc3 Qa5 Rb8 Na7 Rff8 Nb5 Bb4 Bf1 R1g3 Bg2 Be1+ Kg1 f2+ Kh2 f1R Qad2 Qc5 Nbd4 f3 Qg5 Rf2 Qde3 Qd5 Ng1 Rg4 Nde2 Qd4 Kh3 Rgf4 Kh2 R4f6 Kg3 Rf1+ Kh2 f2 Nf3 Rg1 Kg3 Rb6 Re8 Rb8 Rd8 R8f7 Rg8 Rff8 Rh8 Bb4 Kh3 Be1 Qh5 Rg5 Bh1 R1g4 Bg2 Rg3+ Kh2 R5g4 Rh7 Bh8 Qf5 Rgg8 Qg6 Bg7 Rh8 Rd2 Qh5 Rgg6 Qhg5 Rd3 Kg3 Rd1 Qb3+
2bbNKB1/p4N1Q/B1qB2r1/5r2/3p3r/b1b1Q1bP/2RR3k/1n1Bn1Qb b - - 0 1 illegal: No possible last move
N4B1q/B3Q1nk/1r1n1n2/Rb3QbN/8/bBnb1pK1/1r2RBPp/b5N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 h5 d4 c5 e4 a5 b4 f5 d5 Kf7 b6 Kg6 b5 c3 e5 c2 d6 a4 e6 h3 b7 a3 e7 f3 e8Q+ Kh7 b6 c4 d7 h4 Be3 c1N Qd6 f4 Nc3 h2 Qde6 a2 Qg4 h3 Rb1 a1B Rb5 Ra6 Rg5 Na2 Nd5 c3 Ne2 c2 Bc5 c1B Ng1 Ne7 Be3 Nf5 Qe6 Nd6 Nc7 Nc3 Ra5 Qf6 d8N Bd7 Bc4 Bb5 Bb3 Nd7 b8B Ba3 b7 Be7 Ne2 Rb6 Na8 Bd3 Re1 h1N+ Kg1 f2+ Kh2 f1B Bf2 f3 Ba7 Bb5 b8B Ng3 Ng1 Nh5 Re2 Ng7 Kg3 h2 Qe5 Qh6 Ne6 Bg5 Nf4 Nf6 Nh5 Bd3 Bc7 Rhb8 Bd8 R8b7 Be7 Bb5 Bf8 Bd3 Bf7 Rb2 Qe7 R7b6 Bb3 Bb5 Rd2 Bfd3 Qh3 Kg6 Qg4 Qh8 Re2 Kh7 Qf5+
3bnR1r/1RRNrq2/1BB5/6Q1/2bKNB2/2pP2n1/brpr1QRk/6rb b - - 0 1 illegal: No possible last move
nB1R1q1n/br1Bb3/2k5/1Rb1r3/2qbppQ1/1NP1NR1R/b1b1Q3/K6N b - - 0 1 illegal: No proof kernel
1B2N3/R1q1Q2r/nR1b1RnN/1Q2P1n1/2bnB1p1/2N4k/1K1p3b/2n1N1rb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kf6 c4 Kg5 Kc2 Kh4 b4 f5 h3 g5 b6 d5 b5 a5 c5 a4 e5 a3 c6 g3 b7 d3+ Kb3 f3 c7 f2 b6 a2 Be3 g4 Qd2 d4 Bh6 g2 Kb2 f4 Na3 f3 Rh2 Ne7 Be3 Na6 b8Q Rh7 b7 Ng6 Nb5 Bd6 Be2 f1B Nc3 f2 Bf3 Be6 c8N Bd5 Qc1 d2 Be4 d3 Ba7 Qc7 Nf3+ Kg3 h4 g1B Rh1 Bh2 h5 Kh3 h6 Bc6 Ne1 d1N+ Kb3 d2 Qa3 Bfb5 Rf1 Ne3 Kb2 Nf5 Qc5 Nd4 Qb4 Bc5 Nd6 Bc4 Ne8 Bd6 Qb5 B6d5 Qd8 Rc8 b8R Bc6 Rh1 f1N Qe7 Ng3 Rb6 Bb7 Rf1 Ba8 Bf3 Ne4 Bb8 Ng5 Be4 Bc6 Rf6 Ba8 Rb1 a1N Rb7 Nab3 Ra7 Rf7 h7 Nc1 h8N Rh7 Nf7 Bad5 Nh6 Bc6 Bc2 Bh1 Ng7 Rch8 Be4 Rf8 Ne8 Rff7 Re6 Rf1 Rf6 Rg1 Rb7 Ngf3 Ra1 Ng5 Rb6 Nc5 Ra8 Na6 Ra7
2n1NQ1n/1R1n1N2/2bbr1n1/1R2pb2/Bp1Q1k2/1N3q2/2PN2bR/1KB2r1b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 g4 Kf6 f4 h5 a4 b5 a5 d5 a6 e5 a7 b3 Bd3 h3 Bb2 h4 Kc1 b4 Ra2 h2 Ra5 h3 Rb5 Ne7 Nc3 Ng6 Kb1 Rh6 Nge2 Nh8 Qd2 Bd6 Rc1 h1B Bc4 h2 Ng3 d3 Rd1 d4 Na2 Nd7 Nc1 Bg2 Rh1 Qf8 Nf1 Rb8 Qd1 d2 a8N d3 Nc7 Rb6 Ba3 b2 Bb3 Rh7 Ba4 Rf7 Nb3 Ra6 Qc1 d1B Nfd2 Bdf3 Qg1 Bc6 Qd4 Rb6 Nf3 d2 g5+ Kg7 f6+ Kg6 Ne8 Kf5 g6 d1N g7 Nf2 g8R Nd3 Rg7 Ra6 Rh7 Kg4 f5+ Nf4 Nfd2 Kg3 Rg1 h1B Rh2 Nfg6 Rd1 Qh6 Rf1 Qe3 Rf2 Rf8 f7 Qf3 f6 Rb6 Ka2 b1N Bc1 Nc3+ Ka1 Nd5 Kb1 Rg8 f8N Nde7 Ne6 Rf8 f7 Ra6 Ng5 Rb6 Qc3 Kf4 Qa1 B8b7 Rf1 Nc8 Qd4+ Be4 Rf2 Bc6 Rh7 Bh3 Rh2 B3g2 Qg1 Bf5 Qd1 Rg8 f8Q Rg7 Qg1 Re7 Rf7 Re6 Re7 Ra6 Nf7 Ra5 Rb8 Rd5 Rb5 Rd3 Qc5 Re3 Qc3 Re1 Qb2 Rf1 Qc3 Nc5 Reb7 Nd7 Qd4+
3bN3/2r2knn/Q1Br4/Q1P1r2B/4npRq/1NnRn1r1/4p2R/R1K1Bb2 b - - 0 1 illegal: No proof kernel
b2R1r2/Bk2b1N1/R2qBPb1/K1Br2bQ/1nrR4/4Q3/b2p1pBN/4r1n1 b - - 0 1 illegal: No proof kernel
b4Nb1/1nnKN2q/R2p3b/1BQ1k1Br/1R1R1b1p/r1P1bR2/6q1/1QBb4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kf6 b4 a5 g4 h5 b6 e5 f5 h3 c3 h2 b5 h4 b7 a4 b6 d6 Bb5 e3+ Kd3 a3 Ke4 d3 Kd5 d2 Ne2 a2 Nd4 e4 Ne6 e2 Qg1 d1B Nd2 e1B Nf1 e3 Ng3 e2 Qc5 Qc7 Rf1 h1B+ Rf3 Nd7 b8Q Bd2 b7 Bfh6 Nf8 e1B g5+ Ke7 g6 Kf6 g7 Ra3 Ne2 Bde3 Nf4 Bg3 N4g6 Bgf4 Ne7 Bg2 Qa8 Rh7 b8R Qa7 Kc6 Bb7+ Kc7 Bd5+ Rb7 Ke5 Qb8 Ngf6 g8R Ne8+ Kd8 Rh8 f6 Nc7 f7 Qa8 Rb6 Rh7 Rb1 a1Q Rb4 Qb1 Ra6 Rh8 Rd4 Qh7 Rg4 Qb7 Bc4 Qc6 Qb1 Bh1 Bb5 Bg2 Qc4 Nc5 Kc8 Nb7 Qc5 Qb6 Kd7 Bh1 Be2 Qb2 Bb5 Qg2 Rb4 Bg3 Rgd4 Bgf4 Ne6 Rg8 f8B Rg5 Qc6 Rh5 Qb6 Bhg5 Bh6 B5b3 Nf8 Bg8 Rf1 Bf6 Rf3 Bg7 Bg5 Bh6 Qa5 Qg3 Qb6 Nd8 Rf2 Ba8 Qc6 Qg2 Rf3 Nb7 Qc5+
7k/nRn1Rbr1/2Rpqn1Q/2nPR3/Q2B1BQ1/p2r4/4rbn1/1NK1N2r b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c6 b6 Bh6 b5 Qf6 b7 Bg7 e3 Bf8 b6 Qd8 Bb5 cxb5 c4 h5 g4 f5 d4 Kf7 Kd2 Kg7 g5 a5 c5 h3 d5 b4 c6 h4 g6 f3 c7 b3 e4 h2 e5 f2 e6 f1R e7 h3 e8R f4 Qf3 b2 Kc2 a4 Kd2 a3 Qg3 f3 Re2 f2 Re8 Qe7 Qh4 Re1 Nf3 f1N+ Kc2 Qe6 Qf2 Nf6 Bf4 Re2+ Bd2 Na6 b8Q Bc5 b7 d6 Ng5 Ra7 Qf4 Bf2 Qa4 Rh4 Nf3 Rd4 Ne1 Rd3 Rg1 h1R Re7+ Kh8 Rg5 h2 g7+ Kh7 Nc3 b1N Re5 Ne3+ Kc1 Ng2 Bf4 Bd7 c8Q Be8 g8R+ Bf7 Qcd7 Nc7 Rc8 Kg7 Qa8 Kh7 b8B Rb7 Ba7 Kg7 Na2 Nc3 Rb1 N3b5 Bd4 Kh7 Q8a5 Na7 Nc3 Kg7 Rg8+ Kh7 Rg7+ Kh8 Rb6 Rg1 Qc5 h1N Nb1 Ng3 Rc6 Rh1 Qcb4 Nge4 Qd2 Qh3 Qg4 Nc5 Qg6 Qe6 Qg3 Rb8 Qg4 Rg8 Qe3 Bg6 Rgf7 Rg7 Qd2 Ncb5 Rb7 Nc7 Re7 Bf7 Qe3 Rh6 Qeh3 Rhh7 Qhh4 Rh5 Qhg5 Rh1 Qh6+
1Nr5/8/1pNnR3/2Qb1P2/nrqn1pkB/2BRRr1r/R2KQ3/1rnB2b1 b - - 0 1 illegal: No proof kernel
b2B2n1/BQNK2B1/P3rRb1/1pbpR2n/1k1qB1QN/n5n1/Rb3b2/6r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 Ke7 Kc4 Kd6 Kb5 g5 f4 e4 a4 b3 c4 d3 h4 e3 h5 d2 h6 g3 a5 g2 a6 g4 f6 e2 f5 e1B h7 b2 f7 g3 f6 Bf2 Qg4 d1B Be3 Bc2 Bd3 Bg7 Na3 b1N Nf3 g1N f8R g2 f7 Ne2 Nh4 g1B Be4 Bb2 Ba7 Ng3 Ra2 b6 Re8 Bb7 Re5 Bc5 Rh2 Bgf2 Rh1 Qf6 Rf1 Bd3 Bg2 Bg6 f8B+ Ne7 Bf3 Rg8 h8B Qf4 Bg2 Qd4 Bfg7 Re8 Bf3 Ng8 Be4 Re6 Bf6 Bd5 Bhg7 Bb7 Bd8 Bd5 Ka4 Kc6 Nb5 Na3 Nc7 b5+ Ka5 d6 Re1 Nd7 Rf1 Bg1 Rf3 Ndf6 Rf1 Nfh5 Rf3 Qd3 Rf6 Bcf2 c5 Qd4 Be7 Re8 Bd8 Rf8 Rf3 Rf5 Rf4 Rg5 Rf6 Kd7 Kb6 Bb7 Ka5 d5 c6+ Kd6 Na8 Qc4 c7 Qd4 c8Q Bc6 Nc7 Ba8 Bb8 Kc5 Qb7 Kc4 Ba7 Kc3 Bc5 Re8 Kb6 Re6+ Ka7 Kc4 Bb6 Kb4 Kb8 Qd2 Kc8 Bc5 Qf5 Qd4 Kd7 Bf2 Qh3 Nh1 Ba7 Rg1 Qf5 N1g3 Qg4
R1q4q/n3n3/p2N3n/1pnrnQ2/1B1P4/KNQ2BQB/2bRr2k/n2Q2b1 b - - 0 1 illegal: No proof kernel
8/Nnn3qp/bnPb3Q/1r2bK2/N1N5/2nBb1p1/n1Q2Bk1/1rRQ1RQ1 b - - 0 1 illegal: No possible last move
1Nqb1nn1/B2n1P1b/2Qp1N2/R4nK1/kB1Rb3/1r4b1/3p1BQr/n3QB2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 f4 e5 g4 h5 b4 d3 Ke3 d6 c4 Kd7 g5 a4 c5 a3 f5 a2 b6 Kc6 f6 Kb5 b7 h3 g6 h4 c6 h2 g7 h3 f7 Bf5 c7 Be7 c8Q Nd7 b8B Bh7 Ba3 Nf8 Ba7 Rb8 Qe1 Ka4 b5 d2 Qc6 Qc8 Ne2 Bd8 Bb4 Rb7 Rg1 h1B Rg4 h2 Nd4 Bf3 Rg5 h1N Bb6 Ng3 Rh5 Nh6 g8Q Bg2 Qg4 Ng8 Qge2 Bh1 Qg2 Rb8 Qd5 Rb7 Nc6 Rb8 Qc4 Rb7 Nb8 Nf5+ Ke2 e3 Kf3 e4+ Kg4 e2 Bf2 e3 b6 Bg6 Rg5 Rh2 Qcc1 Bh7 Nc3+ Kb3 Ne4 Ka4 Rb1 a1N Rb2 Rd7 Nf6 Rb7 Qg3 Be4 Qg2 Rc7 b7 Rc3 Rg7 Ra3 Kg5 Rb3 Qed1 e1N Qc3 Nd3 Qe1 e2 Qc7 Nd4 Qc6+ Nb5 Rg6 Nc5 Rh6 Ncd7 Rh4 Bf3 Rd4 Bfe4 Na6 Ng6 b8B Ngf8 Qb1 e1B Ba7 Ne5 Nb8 Ned7 Bg1 Bf2 Qe1 Bg3 Bf2 Rc3 Rd5 Rf3 Ba3 Ka5 B3c5 Nd4 Rb5+ Ka4 Bb4 Nf5 Rd4 Rb3 Ra5#
1K3nqQ/1N3P1n/Bp3nn1/Nr2k1B1/1pR1q1b1/4rB2/R1BQ4/1Nn1n1b1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kd4 h5 Kc5 e5+ d6 h3 g4 h2 f4 h4 a4 e3 d4 h3 f5 b6+ Kb5 c5 a5 e2 a6 e1N a7 c4 d7 c3 d5 e4 g5+ Ke5 f6 e3 d6 c2 g6 e2 f7 Nf6 g7 Ng2 g8B e1N Ne2 Nh4 Nd4 Nh7 Ra2 Ng6 Bg5 c1N Nb3 Bh6 Rg1 h1N Na5 h2 Qd2 Nf2 Rg4 h1Q Rc4 Ng4 Bd3 Qf8 d8Q Ngf6 d7 Qg7 Qf8 Qe4 d8N Bg4 Ndb7 Nbd7 Ka6 Re8 a8B Re7 Qe8 Ndf8 Ka7 Re6 Kb8 Re7 Bh4 Be3 Bg5 Re6 Rc8 Bg1 Ba6 Kf5 Rc3 Re5 Qed8 Rb5 Rc4 Ke5 Bh4 Ng5 Bh7 Qg8 Qc8 Ne7 Bg6 Ngh7 Bf5 Neg6 Bg5 Qf3 Bc2 Qe4 Be3 Ng5 Qcd8 Rh3 Qc8 Ngh7 Bg5 Re3 Qcd8 Qg7 Qe8+ Ne6 Qh8 Qg8+ Nd8 Nef8 Bd5 Qf4 Bf3 Qe4 Ndb7
2bb4/1NbkPBQQ/2b2r2/n1B1br1R/pq2N3/p3Q1R1/3bq3/1n2QR1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 g5 Kg2 f5 d4 a5 b4 c5 e4 f3+ Kg3 c4 h4 c3 Kh2 f2 b5 c2 b6 f4 b7 a3 h5 f3 d6 a4 e5 Qa5 d5 Bg7 h6 Nc6 b8Q Ra6 h7 Nge7 e6 Qb4 Qc7 Rf8 h8Q Na5 Nh3 Be5+ Nf4 Rc6 Qh6 Rf5 Bc4 f1B Qg7 f2 Qe1 Bg2 Nd2 f1Q Ne4 Qe2 Be3 c1B Bc5 g3+ Kg1 g4 Rh5 Rb6 Nd3 Bd2 Qb7 Kd8 d7 Bf3 Rb1 g2 Ba2 Nc4 Rc1 Nc6 Bb3 N6a5 Qa7 Bb7 e7+ Kc7 d8R Rbf6 Re8 Kd7 Rg8 Bc7 d6 Bc8 Ng3 Bd5 Ne4 Bc6 Kh2 g1B+ Kh1 g3 Ra1 Ke6 d7 Bd4 d8Q Bde5 Qdf8 Kd7 Qff7 Qg4 Qh7 Qe2 Qfg7 g2+ Kg1 Nb6 Bf7 Nd5 Rc1 Nc3 Ra1 Rf4 Kh2 g1B+ Kh1 R6f5 Rd1 Nb1 Qb6 Bb5 Qbh6 Rf2 Qe3 Bc6 Bd6 Bd8 Qf1 Bf4 Qf8 Re5 Rg2 Nc4 Qfg7 Bgh2 Rg4 Rf3 Qff2 Bhg3 Rf1 Na5 Qe1 Re6 Rgg5 Rf6 Rg6 Qb3 Bb4 Bfc7 Rgg5 Bge5 Rg3 Qc4 Bd6 R3f5 Bb4 Bb5 Bd6 Qb4 Ndc5+ Kc6 Nb7 Kd7 Bc5 Bc6 Rg6 Qb3 Rgg5 Qb4 Rg3
2Qn1bBr/N1q1p3/R3pN1q/Q2Q2r1/BqR4n/1b1K4/4P2q/Q1q1kq1B b - - 0 1 illegal: No extended proof kernel
b2n1k2/1n1prB1K/1q1P3B/3Q1RQ1/3R3r/b1NbRnb1/p3n2Q/3Rb1N1 b - - 0 1 illegal: No possible last move
2Br4/2Kp4/Pp3Q1b/r1b1B1rR/1N1b1N1b/4nQ2/1R2b1B1/k1qR1rBn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 h4 g3 c4 d3 f4+ Kd4 a4 e5 a5 g4 h5 b3 c5 e4 h6 g2 c6 d2 c7 b6 h7 e3 f6 e2 f5 e1B f7 b2 f6 g3 Qf3 d1R Qa3 Ne7 Qa2 Bh6 f8R Nd5 f7 Qg5 Rd8 Nc6 f8Q Ne5 Rh5 Nd3 Na3 Kc3 Re8 Ne3+ Qd5 Nf2 Nh3 g1B Bg2 Nh1 Nc2 b1R+ Nb4 Qf4 Bd2+ Kb2 Qf3 Bb7 c8B Ba6+ Ka4 Qg5 Nf4 Be2 a6 Rg8 h8B+ Rg7 Re5 Rbc1 Qf5 Rc5 Qf6 Bef2 Rh2 Rf1 Rd1 Rb8 Bc1+ Ka1 Kb3 Ra5 Kc3 Be1+ Kd4 Bgf2 Rh5 Bc3+ Ke4 Bd4 Rb5 Qc5 Bd2+ Qc1 Be1 Rg5 Bg7 Nf5 Kd5 Ne3+ Kd6 Ra8 Qd8 Rb8 Be5 Ra8 Qf6 Rb8 Bh3 g2 Bd2 g1B Bg2 Bh4 Be1 Bh2 Bf2 B2g3 Bg1 Bf2 Bb7 Rd8 Bc8 Nc2 Kc7 Ne3+ Nc6 Be1 Rb3 Bb4 Rb2 Bbc5 Nb4
2NQ1qQ1/2p4B/R1b1q1b1/b1B2b1b/NBrb1P1B/3r3n/R3n2p/1Qk2K2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 f4 Kf6 a4 Kf5 a5 e5 a6 h5 d6 b5 a7 h3 d5 h4 g3 b3 d7 b4 d6 b2 Be2 e3 g4+ Ke4 g5 b3 g6 Nc6 g7 Nh6 g8Q Bg7 Bg4 e2 Bd2 Kd3 Qc1 e4 Nc3 b1B Ra2 b2 Qf8 Nf7 Ra5 Nd4 Qe7 Qf8 d8B Ng5 Bf3 Bg4 d7 Rh6 Be3 Rd6 Nd5 Bh5 Ra4 Rb8 Ra6 Rb4 Rh2 Rc4 Kf2 e1B+ Kf1 Ba5 Ne2 Bf6 Bd2 e3 Qd1 Bc2 Qe6 b1B a8Q Bg7 Nec3 e2+ Kf2 Bf6 Ne7 Rd5 Bg2 Be5 Kg1 e1Q+ Bf1+ Qe2 Qg8 Bf6 Bg2 Qe6 Kf1 Bh8 Be1+ Ke3 Be4 Rd6 Rg2 h2 Bh7 h1B Rh2 h3 Na4 Bcg6 Bb4 Bc6 Ra2 Ne2 Qb3+ Bbd3 Qb8 h2 Qc8 Nh3 Qa8 Bh1 Qd5 Bc3 Nc8 Bdf5 Bh4 Bhe4 Qdd1 Bc6 d8B Rd7 Bde7 Rd2 Qb2 Bg7 Qf6 Rd3 Qb3 Bh8 Qg5 Bd4 Bec5 Rdc3 Nb2 Kd2 Qd8 Kc1 Na4 Rd3 Qb1+
2Q1Rr1R/b1p1PnBb/6B1/1rQK2k1/bN2N3/2p1qbr1/B1rn3N/4rN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 b4 h5 d4 h3 g4 c3 e3 f3 b6 h2 b5 h4 d5 f2 b7 h3 d6 a4 d7 a3 b6 a2 Qd3 Nc6 b8N Kg5 b7 f5+ Kd5 f4 e4 Ne5 Qf3 Nh6 Nc6 Bc5 b8N Nhf7 Na6 Rg8 Ncb4 Rb8 Bd3 f1R Qe3 Nc4 e5 Qe7 d8Q Bd7 e6 Nd2 Bg6 Rf2 Qc8 Ba7 Nc5 Ba4 Qd4 f3 Ne4+ Kf4 g5 Rb5+ Qc5 Rg2 Qd8 f2 Qc8 f1R Nf3 Rff2 Re1 h1B Nh2 Rg3 Re2 Rf8 Ba3 Nc4 Nd2 Bf3 Rh1 a1R Ndf1 Nd2 Bf5 Bg2 g6 Re1 g7 Bf3 Bg6 Qg5+ Kc6 Qe5 g8B Qd4 Bc1 Qe3 Kd5 Nb1 Rb2 Rc2 e7 Nd2 Kc6 Nd6 Ba2 Nf7 Kd5 Bh5 Bf5 Bg6 Rb1 Bh7 Bg6 Qf3 Ra1 Qe3 Qe6 Nb3 Rb1 Rb7 Ng4 h2 Qa6 Bg8 Rb2 Qd2+ Nd3+ Kf3 Rb1 Qe2 Be3 Nd2 Bh6 Qe3 Bg7 Rbb8 Rb6 Rb7 Rd6 Rb5 Nb4 Kf4 Rd8 Nh8+ Qe6 Nf7 Nef2 Kg5 Qc8 Rb2 Re8 Rc2 Rg1 h1B+ Rg2 Ne4 Rh2 Bf3 Rh8 Bh7 Ngh2 Nd2+ Ne4+
4r1NB/bp2r2r/1N1rnq2/1b3k1b/2RPQ3/1pK3Br/2n2RB1/RbQ1R3 b - - 0 1 illegal: No possible last move
5n1Q/P2N4/K1b2Q2/p1rk1NnR/1bn1bR2/pN1Qb3/r1B4B/N1q2n1b b - - 0 1 illegal: No proof kernel
B1K3N1/3r1N1q/QN4Qb/n2R2R1/rbb2nB1/2nn1bBP/2r1p2p/4Bk2 b - - 0 1 illegal: No proof kernel
4rR1k/1r3Q2/1bq4n/b1N1Bb1n/4n2Q/1r1PRp1R/Bp1Br1B1/n4K1N b - - 0 1 illegal: No possible last move
r6b/rR1b3n/r1Q3kB/bQ1n2nq/p1N2QR1/4NPRr/1p2Q3/4nBK1 b - - 0 1 illegal: No proof kernel
Qr1b1rq1/1rBnBQbb/6n1/N3R1Pb/kN6/R4p2/1p3B1r/3NnK1B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Kd7 g4 c5 e4 b5 d4 f5 a5 h5 d6 Kc6 d7 h3 a6 f3 e5 c4 e6 b3 a7 c3 e7 f4 e8N h4 Be3 b4 Bd2 f2+ Ke2 Kb5 d5 f3+ Kd3 c2 d6 c1B Ra3 h2 Bg5 h3 Bh4 b2 Nd2 b1R Qe2 b3 Nf6 Bg7 Qe6 Ne7 Nd5 Rf8 Nc4 Bg5 Nb4 Ng6 Bg2 f1B+ Ne2 B5f6 Rg1 h1N g5 h2 Na5 Nf2+ Kd2 h1R Qf7 Rh2 Bh1 Nd3 Bf2 Ne1 Rg2 Qe8 d8B Nd7 Bc7 Rb8 a8Q Bd8 Rg4 Bh3 Re4 Bg4 Ke3 Bh5 Re5+ Nc5 Kd2 Bf5 d7 Qe6 Qe8 Qg8 Qf7 Ne7 Ke3 Bh7 Kd2 Ng6 Ke3 Bdf6 d8B Rb7 Be7 Rb2 Bed6 Bd8 Be7 Rb1 Nf4 Rb8 Nfd5 Nd7 Kd2 b2 Ke3 Ra1 Kd2 Rc1 Ne3+ Rc5 Nd1 Rd5+ Rd3 Ka4 Ke3 Rdb5 Kd2 Ng2 Rde3 R5b7 Rd3 N2h4 Ke1 Ng2+ Kf1 Ne1 Ra3+
1KQ2Nn1/4n1Bb/1br2N2/4p3/1pP3nr/bB1rR3/3R1qRb/1RN1rkQ1 b - - 0 1 illegal: No possible last move, all moves rejected
N4r1R/QK2k2n/1N2Q1rn/1bPn4/r1NR3n/r6B/1bN1bpp1/1Q1q2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 b4 a5 c4 g3 h4 g2 c5 g4 h5 g3 e5 a4 e6 a3 e7 a2 b6 f3 b7 f4 h6 f2 b5 f3 b6 Ra4 h7 Nh6 Rh4 Bd7 Rh1 Bg7 Qe1 Rf8 Na3 Bb5+ Nc4 Nd7 b8N Nf6 h8Q Nh7 Ne2 g1N Bh3 f1R b7 g2 Nd7 f2 b8Q Nf3 Bf4 Nh4 Rd1 a1R Bh2 R1a2 Qb4 Re1 Bg1 R2a3+ Qb3 Kf7 e8N Ke7 Nc7 Be5 Nb6 Qd6 Kd2 d3 Ke3 d4+ Ke4 d2 Qa7 d3 Qb1 Bb2 Qg8 Qd8 Nca8+ Qd7 Rc1 d1N Qg6 Ne3 Rd1 d2 Nd4 Re2 Ke5 Nd5+ Qge4 Nc3 Nc2 Re3 Rh2 Rg3 Qc6 Rg6 Qe6+ Kd8 Rh1 Qd3 Rh2 Nd5+ Kd6 Qf3 Re1 d1B Re4 Be2 Rd4 Qd3 Rh1 Qd1 Rh2 Ba6 Kc6 Bb5+ Kb7 N6f5 N4e3 Nf3 Qc6 Nhg5 Bg4 Ke7 Rh8 Nh7 Nec4 Nh6 Bh3 Nh4 Qe6+
n5n1/1N2R2b/B1QBpr2/r3QbN1/4B2r/bn2pP2/qR1n1RBr/4k1K1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Kg6 g4 d5 f3 a5 Kf2 h5 g5 Kf5 b6 a4 c5 a3 c6 d3 g6 d2 c7 Kf4 g7 e3+ Kg2 h3+ Kh2 d4 b5 a2 b7 h4 b6 d3 Qc2 d1R Qc3 d2 Bd3 Na6 b8R Qd5 b7 Bf5 c8B Nc7 Na3 Ra5 Qb3 Na8 Rb1 a1N Qc3 Qa2 Rb2 Nb3 Nc4 e6 Qc2 Ba3 Bf1 Rh6 Bg2 Rf6 Nd6 Rf1 Qc6 d1B Re2 Bdc2 Rf2 Re1 Bd2 Re2 Be1 Bh7 Bb4 Bcf5 Bc5 Ke5 Bb4 Kd4 Bc5+ Kd3 Bb4 Nh6 g8B Rb2 Bf7 Ng8 Bg6 Rd2 Bc5 Kc2 Bb4+ Kd1 Bc5 Ke1 Bb4 Bb1 Be4 Bf5 Nf7 Bh7 Nd8 Bd3 Bd6 Rc2 Bd5 Bdf5 Be4 Nc1 Rd2 Rc4 Bd5 Bhg6 Rf2 Rf4 Be4 Rg4 Bf1 Rf4 Ne2 Rg4 Rg1 Bh7 Kh1 h2 Nf4 Rg2 Nh3 Rg4 Rgg2 Rf4 Rb2 Nb3 Rgf2 Rg4 Ng5 Rf4 Kg2 h1N Kh2 h3 Kg1 Ng3 Bg2 Nf1 Qa6 Nfd2 Qc6 Nc7 Ra8 Rh4 Ra7 Rf7 b8Q Rf6 Qbb5 Na8 Re7 h2+ Kh1 Rh5 Ba6 Rh4 Nb7 Rhh6 Bh3 Rh4 Kg2 h1R Qe5 Rh2+ Kg1 Bc5 Bhf1 Ba3 Bg2
3KRQ1b/2Q3Nr/4p1nn/2Bn2nP/p1k1B3/b2R1b2/3rBrrQ/2NBq3 b - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 a4 bxa4 g4 hxg4 Bh3 f5 Bf1 fxe4 Kd2 Kf7 Kc3 Ke6 Kd4 a5 b4 d5 f4 g5 c4 e3 h4 g3 c6 a3 Kc5 g4 b5 g2 h5 a2 c7 g3 Kb6 d4 c5 Kd5 c6 a4 f5 d3 f6 e2 f7 e1R Qe2 d2 Nf3 d1R Be3 g1N Nd4 g2 Ne6 Rh7 Bc5 Nh6 Ng7 Nf3 Nd2 g1N Qh2 Bb7 Nb3 Ne2 Nc1 Qe8 c8B Na6 c7 Rd2 Bg4 Nf4 c8B Ree2 Bcf5 Ng5 Be4+ Kc4 Rb1 a1B Rb3 Rc8 Rd3 Rf2 Bd1 Nc7 Bfe2 Ng6 Re1 Be5 Bf5 Bf3 Be4 Rg2 Kb7 Nd5 b6 Ba1 Qc7 Rd8 Qh2 Rd7+ Kc6 Bf6 b7 Rb2 b8Q Rf2 Ne6 Bh8 Ng7 Rd2 Qd8 Rd6+ Kb7 Rb6+ Kc8 Rbb2 Bf1 Rg2 Ree3 Rdf2 Re1 Rbd2 Bfe2 Qb5 Qdc7 Qb4 Kd8 e6 Rg1 Bd6 f8Q Be5 Qfd6 Bb2 Qf8 Ba3 Qh1 Rh2 Rg4 Rhg2 Qhh2 Qc3 Rf4 Qa5 Rf7 Qb4 Re7 Ra2 Kc8 Qe1 Re8 Rd2 Kd8
1bR3rk/1Q1nn2b/b2pN1b1/2B2RKN/Qq2P3/4R3/3p2BB/1rrn1B1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 b4 Kf7 c4 Kg7 g4 h5 e3 a5 g5 h3 b6 h4 c5 a4 b7 d3 c6 h2 g6 h3 b5 f3 b6 f2 c7 a3 Qe2 f4 Qe1 f3 Qd1 a2 Nc3 Bd6 Nge2 Qh4 Nd4 Ne7 Nce2 Rg8 Nf4 Kh8 Nh5 Qe4 Rg1 h1N Ba3 h2 Rg5 Ra7 Rb1 a1R Rb3 Rb1 Bc5 Raa1 Ne6 Qb4+ Rc3 Rc1 Qa4 Rab1 Rf5 Bg3 Bg2 f1B e4 f2 Ke3 d2 Kf3 Bc4 Kg4 f1B Re3 Nf2+ Kg5 h1N g7+ Kh7 Nef4 Bf7 Ne6 Be2 Bf1 Ba6 Bg2 Rd8 g8B+ Kh8 Rf4 Re8 Rf5 Bg6 Bf7 Rg8 Be8 Nbc6 b8Q Nd1 b7 Ne5 Qa8 Bc4 b8B B8a6 c8R Bh7+ Neg7 Bf7 Qb7 Bfg6 Ne6 d6 Bb5 Nd7 Bbf1 Be1 Bba7 Bf2 Rg3 Be1 Bg1 Bf2 Bh2 Bb6 Rgc3 Bc7 Bc5 Bb8 Re3
2nRrN1B/Nb1N2bn/2P3K1/2pBB2r/1p1qQ3/nr1R1Q2/2b2r2/1N2k2n b - - 0 1 illegal: No proof kernel
2n1rnb1/k1N2q2/Np1R3K/2N2b1B/1p1n4/bR1rQ2R/3P3r/Brb1Q2N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 Kb6 g4 f5 e4 f3 a4 h3 g5 f4 e5 f2 g6 h2 g7 f3 a5+ Ka7 a6 Qf6 e6 Nd7 e7 Qf7+ Kg5 h5 e8N h4 d6 h3 Qe2 Ne7 g8Q Rh4 Bb2 Rd4 Nc3 Rd3 Bg2 f1B Na4 f2 Qe1 Be2 Bc3 f1N Ra3 Ng3 Rb3 Ngf5 Ba1 Nd4 Nc7 Bg4 Bf1 Bf5 Be2 Bh7 Qh8 Bg8 Bh5 Rb8 Ne2 Ra8 Rg1 h1R Rg3 h2 Qh6 Rf1 Qe6 h1R Rh3 Rh2 Ng3 Rb8 Q1e3 Rb1 Q6e5 b6 Q5e4 c4 Nh1 c3 Nc5 c2 Qe1 Bg7 Q4e3 Nf8 d7 c1B d8R Bh8 Rd6 Bf5 Kh6 Re8 N7e6 Ka8 a7 Nc8 Na6 Kb7 a8N Ka7 N8c7 Nf3 Qg3 Bhb2 Nec5 Nd4 Qgf2 Ba3 Qfe1
2n3NB/3N2Kb/pr3n2/nN1kR2R/2r2PBr/bq1B2b1/2pNb1n1/3Q1Q2 b - - 0 1 illegal: No possible last move, all moves rejected
Rr1NN1Qb/3R2P1/2R1pNqk/p1Bn3r/bNr1r3/4n2B/3b4/KQnb4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg7 f4 h5 c4 d5 Kc2 a5 b4 h3 Kb2 d3 c5 h4 f5 d2 b6 e3 c6 d4 f6+ Kg6 b5 d3 g5 h2 b7 e2 c7 e1B f7 h3 b6 e6 Nf3 Qf6+ Nd4 Nc6 b8R Bg7 f8Q Rh5 b7 Qf5 Na3 Ne5 Nac2 Nf6 Nb4 Bd7 c8N Bh8 Nd6 Nd5 Ne8 Ba4 Ndc6 Qg4 Rc8 Rb8 Nd8 Qf5 Rg1 h1R Rc6 h2 Bh3 Qg4 Qb3 d1B Be3 d2 Bc5 Nd3+ Ka2 Qf5 Qb1 Kh7 Rg4 Qg6 Rd4 Nc1+ Kb2 Ra8 b8N Rf1 Ra6 h1R Nd7 Rb8 Ra8 Rf4 Ra3 Rh2 Ka1 Re2 Rc3 Ree4 Rdd3 Rc4 Rd4 Re4 Rc2 Qg7 g6+ Kh6 Qg8 Qh7 g7 Qg6 Nf8 Bf3 Rc3 d1N Nd7 Bd2 Ndf6 N1e3 Rdd3 Bfd1 Rd4 Nf4 Rd7 Nfd5 Ba7 Rcd4 Rc6 Rc4 Bc5
N1r1nRnb/1nqp3R/3bPB2/QpQ2b2/6Br/1r3N1R/k4b2/B2KB1r1 b - - 0 1 illegal: No proof kernel
K1n5/Q2pNRbp/1r1b4/1BRr2BP/kN1b1B2/4r2Q/r1bqn3/B2Rn3 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 a5 Kd3 g5 Kc4 b3 f4 a4 e4 g3 h4 b2 b6 g4 Kb5 d3 c4 d2 e5 g2 c5 a3 f5 a2 f6 g3 h5 Nh6 c6 Bb4 b7 Ng4 e6 Bd6 f7+ Ke7 c7 Ne5 Kb6 Re8 Ne2 g1N Na3 b1R+ Qb3 d1R Nc2 g2 Nf4 Rd5 Ba6 Nd3 Nb4 Ne1 Qh3 Nc6 b8B Ne2 Rf1 g1B+ Be3 Rb3 Rd1 a1B Rf3 Bg7 f8B+ Kf6 e7 Ke5 Rf1 Na7 Ng6+ Ke4 Rf5 Bb7 Rf7 Bc6 Bd4 Ba4 Kb7 Nc8 Bf6 Bd4 Bg5 Bge5 Bfh6 Bg7 Bf6 Re3 Bhg5 Bc2 Be5 Rh8 e8Q Qf6 Qee6 Qf4 Ne7 Re8 Qh6 Rb3 Qf6 Qd2 Qf2 Rb1 Bef4 Rb2 Ba7 Ra2 Bc5 Ra7+ Kb8 Rb7+ Ka8 Rb5 Ba7 Rb6 Qg1 Bf2 Bb8 Kd4 Be5+ Kc5 Ba1 Bfd4 Qf2 Rc6 Qg1 Kb6 Qf2 Ka5 Qfe3 Na7 c8R Rb6 Rc5+ Ka4 Qf2 Nc8 Qfe3 Bh2 Bbf4 Bg3 Qe5 Bh2 Qb8 Bg3 Qa7 Bh2 Be3 Bb8 Bef4 Bd6 Nf5 Re6 Ne7 Re3 Bb5+
3b2nN/1pr1b1P1/4Rn2/BBqn4/2RN4/bpr1QNK1/QNn5/2k2bRr b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 f4 Kg6 Kf2 Kf5 a4 h5 d6 c5 g3 e5 a5 e3+ Kg2 Ke4 a6 h3+ Kh2 c4 a7 h4 d7 c3 g4 c2 g5 e2 d5 e1B f5 b3 d6 Na6 f6 Qb6 d8N Nc7 f7 Qc5 d7 Rh7 g6 Be7 f8Q Ba5 Be3 c1B Qh6 Nd5 Qd2 Ba3 Nc6 Bad8 Qa2 Rb8 Ne2 Kd3 a8R e4 Bd2 e3 Nec3+ e2 Na4 Rf7 Nb2+ Kc2 g7 e1N Bb4 Rf3 Be2 Rc3 Ra4 Ra8 Qe6 Kc1 Ba5 Ra6 Nd4 Rc6 Rc4 Rc7 Bf1 Nc2 Rg1 Bg5 Kh1 h2 Kg2 h1R Qh6 Be7 d8N h3+ Kf2 h2 Nf7 Bg4 Nh8 Be2 Qe6 Bgf6 Rg6 Bd3 Kg3 Bg5 Qe4 Bd8 Re6 Bge7 Bg2 Bf1+ Qd3 Ndb4 Bc6 Nd5 Bb5 Rg1+ Kf2 h1N+ Kf3 Ng3 Kg4 Rg2 Qe3+ Rd2 Kf3 Ne4 Kg4 Nef6+ Kf3 Bh3 Kg3 Bf1 Bd7 Be2 Na4 Kd1 Be8 Bd3 Bb5 Rh2 Nd2+ Bc1 N2f3 Rh1 Nh2 Be2 Qf3 Kd2 Rb1 Bb2 Rg1 Ba3 Nb2 Bf1 Qd3+ Kc1 Nhf3 Rh7 Qe2 Rh1 Qe3+
1Nk2rn1/pN1b2b1/3qn1Qn/1rR1nQB1/B5r1/pQ6/1b3P2/1QrR2NK b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 d4 Kd7 g4 c5 b4 e5 d6 h5 b5 e3 d5 e4 b6 a3 b7 c4 g5 h3 g6 h2 g7 e2 Qd2 c3 Ra2 h4 Qc2 h3 Bg2 Rh4 Ra1 Nc6 b8Q Ne5 Nd2 Rg4 Qcb1 c2 Nb3 Qc7 Bh6 c1B Na5 Bb2 Qb3 Rb8 Bg5 Rb5 Nb7 Qb8 Kd2 e1N Ke2 e3 Kf1 Nc2 Bf3 Nd4 Bd1 Nf7 Qf5+ Ne6 Rc1 Nfh6 Rc5 Bf6 Qbb1 Bb2 Ba4 Qc7 Na5 Qd8 Nc6 Qe7 Nb8+ Kd8 Ke2 Bd7 Kf3 e2 Qg6 Rgb4 Kg3 e1N Qgf5 Nd3 Kf3 Nf6 g8Q Rg4 Qgh7 Bg7 Qhg6 Rd4 Kg3 Nfg8 Kf3 Ne5+ Kg3 Bc6 d7 Kc7 d8N Qd6 Nb7 Kc8 Qf3 Rf4 Qb3 Rf8 Qgf5 Qc7 d6 Bd7 Ne2 Qc6 Rd1 h1R Ng1 h2 Qg6 Qc7 Kg2 Qc6+ Nf3 Qc7 Qbf5 Re1 Ng1 h1R Qb1 Rh3 Qgf5 Rc3 Kh1 Re4 Qg6 Rc1 Qf5 Bc6 Qg6 Qd8 d7+ Kc7 Qf5 Rg4+ Qff3 Qe7 Qg6 Kb6 d8Q+ Qc7 Qdd3 Bd7 Rd5 Qd6 Qb1 Kc7 Qff5 Kc8 Rc5+
RR5Q/1b1q1bb1/2q3B1/1n3kn1/KBb4q/NprR3P/2q1p2R/rQ3BN1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 f4 Kf6 a4 e5 c4 g5 Kc2 d5 Kb3 b5 h3 g3 a5 g4 c5 e4 a6 g2 c6 e3 c7 g3 a7 e2 Bd2 d3 Ra2 d4 Bc1 d2 Rc2 d3 Nc3 Qd7 Na4 Na6 Ra2 Bb7 c8B Nh6 Qc2 d1B Bd2 Nf7 Nc5 Bg7 Be1 d2 Ra1 Ng5 Ra5 Nc7 Nd3 Qc6 Bd7 Rhc8 Be8 Qd7 Nf3 g1Q Nb2 g2 Nc4 Qf2 Rh2 g1Q Bh5 Qgg2 Na3 Qh4 Ng1 Qgc6 Ra6 Ke7 f6+ Ke6 f7 Kf6 Kb2 b3 f5 b4 Qb1 Nb5 f8Q+ Ke5 f6 Bc2 f7 d1Q Rb6 Bd3 Qh8 Bc4 f8R Qc2+ Ka1 Rc7 Rf3 Rcc8 Rd3 Kf5+ Bc3 Bf7 Nc4 b2+ Ka2 Nd6 Bd2 b3+ Ka3 Nb5+ Ka4 Rc7 Bb4 Rcc8 Qa2 b1B Qa1 Qcd6 Na3 Rc3 Rc6 Qc5 Rc8 Qcc6 Rb8 Qb2 Rd1 Bd3 Qb1 Qc2 Rd2 Bdc4 Rd4 Qh6 Rd3 Qhc6 Rf8 Re8 a8R Re6 Rfb8 Rd6 Rg3 Rd1 Rd3 Rc1 Qa2 Ra1 Qb2 Bf6 Qb1 Bg7 Bg6+
B2B2Qb/knN2r2/R2bNQ2/q4q1R/2Pb1pNK/1pN1rb2/1n4Q1/1nn5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 g5 Kg3 d5 a4 Kd7 c4 Kc7 h4 Kb6 e4 f5 a5+ Ka7 h5 b5 a6 b3 h6 b2 h7 f4+ Kg2 g3 e6 g4 e5 d3 e7 b4 e8Q d4 e6 d2 e7 d3 Qg6 b3 e8N Ne7 Qh6 Nd7 Qe6 Nf5 Qd6 Nd4 Ng7 Qa5 Ne8 Nc5 Qc2 d1N Nh3 d2 Qc3 Bb7+ Qd5 Bd6 Nf6 Rhf8 h8Q Rae8 Qcf3 Rf7 Ng5 Ne2 Nc3 b1N Ne6 Nb2 Rh5 d1Q Be3 Nc1 Bd3 Ree7 Be4 Qd3 Qc6 Qd5 Qg8 Qf5 Bd4 Ba8 Be5 Nb7 Qf2+ Bc5 Bc7 Re8 Qd2 Bd6 Bd8 Ree7 Kh1 g2+ Kh2 g1B+ Kg2 g3 Ng4 Qad5 Kh3 g2 Kh4 Bd4 Qe2 g1B Qg2 Bh8 Qb6+ Kb8 Ra3 Bgd4 a7+ Kc8 Ra6 Qa5 Bf3 Re8 Nc5 Re3 Ne6 Nc5 Be4 Bc6 a8N Nb7 Nac7 Kb8 Bd3 Bf3 Be4 B6c5 Qd6 Bb4 Qe5 Bf8 Qf6 Bd6 Rb6 Ka7 Bd5 Nc5 Ba8 Nb7 Ra6+
3bnqr1/r2nRb2/3NN2r/2nNB3/Bp1N4/2Q2rq1/1PQ1p2R/nK1R2k1 b - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 g5 h4 gxh4 a5 d5 cxd5 Nc6 a6 Nb4 Qe2 Nxa6 Qf3 Nb4 Qd1 Na2 d4 Kf7 Kd2 Kf6 Kc2 Kf5 f4 e5 g3 c5 d6 a5 d5 b5 d7 h5 d6 e3 g4+ Ke4 f5 a4 f6 h3 g5 h4 f7 h2 g6 e2 g7 e1Q Qd2 b4 Nh3 Kf3 Qd5+ e4 Qc4 a3 Ng1+ Kf2 Bd2 e3 Qa6 e2 Bf4 c4 Qb5 c3 Qc6 h3 Be5 Ra7 Nf3 Nf6 g8N Ne8 Ng5 Be7 f8N Nc1 Nf7 a2 Na3 Nd3 Ne6 Nc5 Nf6 Rg8 Rc1 a1N+ Kb1 Bb7 Qc8 Bd5 Bg2 Bc4 Rd1 c2+ Kc1 Qc3 Bc6 Qg3 Nd5 Bf6 Ba4 Qe7 d8Q Nd7 Rd4 Qf8 Qdc7 Bd8 Re4 Bb3 Rd1 h1R Qc3 h2 Nb5 Rf1 Nbd4 h1R Rh4 Kg1 Rh2 Nc5 d7 Bc4 Rh7 Rh6 Nd6 Ba2 Re7 Bb3 Kd2 c1N Qc7 N1d3 Qc6 Ne1 Kc1 Rf3 Kb1 Bc4 Rd2 Ned3 Rd1+ Kg2 Rh1 Kf2 Rh2+ Kg1 Bh8 Ne5 Bg7 Bc7 d8R Ned7 Be5 Ba5 Qa6 Bb3 Qad3 Bc4 Qdc2 Bc7 Rb8 Bd8 Rb6 Bd3 Rb5 Bg6 Rb8 Bf7 Rb7 Nb6 Rbd7 Nc4 N6b5 Kf1 Ndf4 Rh5 Nc6 Rh6 Rd5 Kg1 Nd6 Nb6 Rd1+ Rf1 Nd5 Nbd7 Ka2 Qgg7 Ncd4 Qg3 Rd3 Rff6 Kb1 Rf3 Rd1+
k2n4/q1N2Q2/3QnK2/b3n1Bp/1N4rb/RB4PN/3B1Rpb/N2r1bqn b - - 0 1 illegal: No proof kernel
1BrQ3b/4nrNb/2Bbr1qn/KR1R1bP1/1Bp1Q3/4q1rk/7p/N4B1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 a5 d4 h5 Kd2 f5 Kc3 c5 e5 f3 g5 h3 b6 h4 b7 f2 b5 f4 b6 Kf5 d5 a4 e6 h2 e7 a3 e8B h3 d6 a2 d7 f3 Bg6+ Kg4 Ne2 Nc6 b8B Ra6 b7 Qf6+ Nd4 Bd6 d8Q Nce7 Bd2 Bf5 Qc7 Nh6 Qb6 Rc8 Bh7 Qg6 Bd3 f1R Qb4 Rg1 Be2 Rg3 Ne6 Kh4 Na3 f2+ Bf3 f1R Ng7 Rac6 Rb1 a1B+ Rb2 Ra6 Nc2 Rf2 Bg8 Rf1 Bd5 Rb6 Bc6 Ra6 Rg1 h1B Be1 Bg2 Rh1 h2 Qd3 Kh3 Be2 Rf4 Qb6 Bd5 Qd8 Bg8 Qf3 Bh7 Bd3 Bg4 Qe4 Rf7 Bd2 Rg2 Bf1 Bf5 Ba7 Rb6 b8R Ra6 Rb7 Rb6 Bb8 Ra6 Bd3 Rg3 Rd7 Rb6 Be1 Ra6 Kd2 Rb6 Rb5 Bb2 Na1 c3+ Kc2 Ra6 Kb3 c2 Bd2 c1Q Bb4 Qe3 Kc4 Bd4 Kb3 Rb6 Ka4 c4 Ka5 Bb2 Ne6 Bh8 Ng7 Bc7 Rdd5 Be5 Ba8 Re6 Bc6 Bd6 Bf1+
1kr1Q3/1Q2Rr1n/R2r4/1q3p2/1N2n2r/q2NPpR1/4Qbb1/BK1bbBR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 g4 d5 c4 Kd7 Kc2 Kc7 b4 a5 g5 f5 c5 a4 c6 d3+ Kb2 h3 g6 a3+ Ka2 d2 g7 h2 Nc3 d4 Nh3 h4 Bb2 d3 Bc1 Qd6 Bb2 Nf6 g8Q Ne4 Qg2 Ra7 Rg1 h1R Qb1 d1R Qc2 d2 Nf2 h3 Qg8 h2 Nd3 Nd7 b6+ Kb8 b5 Bb7 Nd5 Ndf6 N5b4 Nh7 Bd4 Ba8 b7 Qe5 Qgb3 Bc5 Qe6 Rc8 Qe8 Qe7 Bg7 Bf2 e3 Qc5 Rg3 Qf8 Rc1 Qc5 Ba1 Qb6 Qb2 Qa5 Kb1 a2+ Kc2 Qa3 Rb1 Kc7 b8R Rb7 Rc1 Ra7 Rb6 Bb7 Rg7+ Kb8 Ra6 Ba8 b6 Rf7 Rg3 Bb7 Qd4 Ba8 Qc4 Bb7 Bd4 a1B Kb1 Bc3 Bf6 Re1 Qa2 d1B Qe2 Ba8 b7 Bd2 Qh5 Re2 Bb2 Bde1 Ba1 Ra2 Qe2 Rd2 Ne5 Rd6 Ned3 Rg1 Qd7 h1Q Qe8 Kc7 b8R Qh4 Rbb6 Rh1 Rb8 Qf6 Rb5 Rh4 Re5 Kb8 Re7 Qe5 c7+ Kb7 Rac6 Qb5 Rb6+ Ka7 Rbc6 Neg5 Rb6 Bg2 Rbc6 f3 Rb6 Rb8 c8Q+ Ka8 Qcd7 Rc8 Ra6+ Kb8 Rc4 Bh3 Rcg4 Ne4 Rg1 Bg2 Rg3 Qb6 Qc6 Qb5 Qb7+
2k1BR2/n2n1nBb/3r2n1/N3P1qN/3Q1NQb/qNp2q2/p1K5/1RRr1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 d4 f5 Kd2 h5 b4 c5 g4 a5 g5 f3 g6 c3+ Kd3 a4 g7 f2 d5 h3 e5 h2 d6 c4+ Kc2 h4 b6 a3 b5 h3 b7 a2 b6 f4 Bd3 f1N Qh5 f3 Bg6 f2 Be3 Rh6 Bd4 Nf6 g8N Be7 Qf3 Ng3 Na3 f1Q Qf4 Nge4 Bc5 Ng5 Bf2 Nc6 b8R Nf7 b7 Na7 Bc5 Qa5 Nb1 Qa3 Qe3 Kd8 Bh5 Nd7 Ne2 Bh4 Qd4 Re6 Rg1 h1N Nf6 h2 Nd2 Nf2 Qg4 h1Q Rb1 Nh3 Nb3 Qhf3 Bg6 Nf4 Nh5 Nb6 d7 Rd6 Rh1 Kc7 d8N Nd7 Nc6 Rd1 Bf8 Rd6 Bh7 Ng6 Nca5 Nb6 Bg8 Nh6 Ra1 Rd7 Ng1 Q1g2+ Ne2 Nh8 Qe4 Qg5 Bd5 N6f7 Qd4 Qfg4 Qf2 Qg3 Kd1 c2+ Ke1 c3 Bc6 Qg2 Nef4 c1Q+ Ke2 Qcg1 Bg7 Qb1 Rd1 Rd4 Rh1 Bf5 Rf8 Rad8 Be8 R8d6 Rg1 Qbc1 Rb1 Bh7 Re1 Q2g3 Qe3 Rd3 Qd4 Nd7 Rh1 Ng6 Re1 Rf3 Rg1 Rf1 Rh1 Q3g4+ Kd3 Qe1 Kc2 Kd8 Qg1 Qh3 Qg4 Qf3 b8Q+ Nc8 Qb5 Na7 Qd3 Kc8 Rh2 Rh1 Re2 Qg1 Ree1 Qgf2+ Qd2 Q2e2 Rec1 Rd1 Rh8 Qc4 Rf8 Qcf1 Qd4
rBq5/5q2/RK1n1B1N/nNnPp1Rp/3b3q/1Q1n3Q/2R2Br1/k1qb1B2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc3 Kd5 b4 c5 f4 h5 g4 a5 d4 a4 g5 h3 b6 e3 f5 a3 g6 e2 b5 e1Q+ Qd2 a2 g7 h2 b7 Nh6 g8R Nc6 b8Q Qf2 f6 Nf7 b6 Nd6 f7 Bg4 b7 Bd1 Qf4 Qc8 Qf5 Na5 Rg2 Rg8 Qh3 Qh4 Rb2 Rg2 Nf3 Qe7 Rg1 h1Q Rd2 Bh6 f8B Qf7 Nh4 Be3 Na3 Ke4 Rb1 a1N d5 N1b3 Nb5 Qh2 Re2 Qhf4 Nf5 Qh4 Rc2 Bf2 Kb2 c3+ Ka3 c4 Ka4 Bd4 Be3 Nc5+ Kb4 Qg7 Nh6 Qf7 Rf2 c2 Ra1 c1Q Bg7 c3 Bf6 c2 Ra4 Rh2 Rg5 Rg2 Re2 Kd3 Bf2+ Qe3 Ra1 c1N Raa2 Nab3 Ra6 Na5 Re1+ Kc2 Re2+ Kb1 Rc2 Qcc7 Qa7 Qc6 b8B Ka1 Qad7 Qef4 Qb3 Qc8 Qdh3 N1d3+ Ka3 Ncb7 Ka4 Qc1 Nc3 Nf5 Kb5 Nbc5 Kb6 Nd6 Nb5
6n1/1N1Qqrkb/BrQ1nbBQ/q1Rprq2/Q2Pr3/K3B1q1/p6R/N7 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 g4 f5 c4 Kf7 d4 a5 Kd2 d5 Kc2 h5 Kb2 h3 e4 h4 b6 a4 c5 b3 b7 a3+ Kc3 b2 Kb3 f3 c6 f4 g5 h2 g6+ Kg7 e5 f2 e6 h3 e7 a2 e8B f3 c7 Be7 Nc3 Rh4 Ne4 Nd7 b8Q Nc5+ Kb4 Ne6+ Nc5 Bf6 Qb5 Qe7 Be3 Re4 Qda4 b1R+ Ka3 Re1 Be2 f1R Qd7 f2 Ba6 Rb8 Nf3 Rb6 Rc1 Re5 Nd2 Re2 Rg1 h1Q Rg2 h2 Nb3 Qg1 Na1 h1Q Rh2 Qg3 Qdc6 Bd7 c8Q Qe4 Q8c7 Qf5 Q7d6 Ree1 Nb7 Re4 Rc5 Re2 Qc8 Bb5 Qcc6 Bd3 Qdd7 Re5 Bf4 R2e4 Bd2 Rd1 Bc1 f1Q Be3 Qfe1 Bf7 Qa5 Be8 Qfh3 Bf7 Rf1 Be8 Kh8 g7+ Kh7 Bh5 Rff4 Bf7 Kh6 Bh5 Qf5 Bg6+ Qfh3 Bc4 Bh4 Bf2 Rf7 Be3+ Ref4 Bd2 Nf6 Bh5 Bh7+ Be3 Qf5 g8Q Bg5 Ba6 Rfe4 Qa8 Ng8 Bg6+ Kg7 Nd6 Kh8 Qf8 Bh4 Qh6 Bf6 Qh3 Kg7 Nb7 Nh6 Qh4 Ng8 Qh6+
2k4q/2NQ1B2/1rq2r2/BQP2Bq1/B1q1b1p1/p4b1Q/Nn3b2/K1R2bRn b - - 0 1 illegal: No possible last move, all moves rejected
3Q2n1/4N1N1/B2b2nq/p2PRrB1/1np2n2/2k1BKQ1/bRNq4/b4brB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 g4 Kf6 b4 Ke5 e4 Kd4 b6 f5 g5 h5 d3 a5 e5 c5 g6 c3 b5 h3 g7 h2 b7 f3 e6 c2 b6 f4 e7 h4 e8N h3 Bd2 c1B Be2 Na6 b8Q Rh5 b7 Bb2 Ra4+ Nb4 Ra2 Ba1 Rc2 Bd6 Bf1 Be6 Rb2 Ba2 Bg2 Rf5 Na3 c4 Be3+ Kc3 d4 Ra6 Nc2 Rb6 Qc7 Rc6 b8B Rb6 Ke1 f2+ Ke2 f1N Nf3 Nd2 Nh4 Nf3 Re1 h1Q Ng6 h2 Ne7 Ne5 Bb7 Ng6 Ba6 f3+ Kf2 Qd7 Ba7 Rc6 Bg5 Qd8 Ke3 f2 Qf3 f1B Qg3 Qd7 Qd8 Rc8 Re2 Qhc6 Bc5 h1N Bb6 Nf2 Re1 Nf6 g8B Nh3 Ng7 Nhf4 Bd5 Ng8 Ba7 Qb6 Bh1 Rcc5 Kf3 Rce5 Ne6 Re2 Ng7 Rg2 Re5 Rg1 Rb1 Qdc6+ d5 Qd4 Rb2 Qd2 Qh4 Qc8 Bb6 Qe6 Be3 Qf6 Qg3 Qf8 Ne8 Qh6 Ng7
1R1Q1q2/Bqr1n3/1r1r1r1p/8/1QbNQ1K1/1nbp3N/BPR1Bb2/k2b3B b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Ke6 g4 Kd5 b6 Kc4 f5 d5 f6 e5 g5 a5 g6 h6 b7 a4 f7 h3 c3 a3 g7 h2 Bf4 a2 Bc1 e3 Kf3+ d3 Kg3 e2 Be3 e1R Bf4 e4 Qg4 Kb3 c4 d4 c5 e3 c6 e2 c7 d2 Qg6 d1B Nf3 d3 Be3 Na6 b8Q+ Bb4 f8Q Nc5 Qh5 Ra6 Qg4 Ne7 g8B+ Be6 c8B Rb6 Nc3 Rh7 Ne4 Bc4 Bb7 Bc3 Neg5 Rd6 Rc1 a1R Rc2 Ka2 Nd4 Nb3 Rg1 h1Q Qe4 Rb6 Qff4 Qf8 Nh3 Kb1 Qg4 Raa6 Qd8 Ka1 Qgf4 Rf6 Kg4 Rab6 Qfd6 Rhf7 Qb4 Rfd6 Rg3 Rff6 Ba8 Rb7 Rf3 Rc7 Rf5 Rb6 Rb5 Rbd6 Rb8 Rb6 Qe5 Qb7 Qe4 Rbd6 Bg2 Ref1 Bf3 e1B Be2 Rb6 Bf2 Rfd6 Be3 Rff6 Bg1 Bf2 Bd5 Na5 Be6 Ba6 Ba2 Nb3 Bh2 Bg3 Qf5 Rb5 Ne6 Qa7 Bh1 Qb7 Bg1 Bh4 Be3 Bf2 Ba7 Rbb6 Qfe4 Bc4 Nd4
1qr1bN2/1Qr5/1KRb1pb1/Bn3P1n/q2R2Rk/p1N5/3Qb1rB/R3rN2 b - - 0 1 illegal: No possible last move, all moves rejected
2Qnq3/R4bq1/n1pbpRR1/N1bRQP2/3Q2B1/1Kn3B1/2n2r2/r2Nbk2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 d4 Kg6 Kd2 Kg5 Kc2+ e3 b4 Kf4 f3 Kg3 f4 Kf2 g5 a5 f5 h5 d5 e2 g6 e1B g7 c6 d6 a4 d7 a3 b6 a2 b7 h3 b5 h4 b6 h2 Qd3 h3 Nc3 Nh6 g8R Na6 b8R Qe8 d8Q Be6 b7 Nf7 Nd5 c3 Qc8 Nd8 Bg2 Bf7 Bf1 e6 Rg6 Bc5 Kb3 c2 Bf4 c1B Ne2 B1a3 Nb6 Rh6 Rhg1 h1N Nc4 h2 Bh3 Ng3 Nc3 h1Q Rf6 Ne2 Rgg6 Qg1 Bg4 Kf1 Qd4 Rh2 Nd1 Rf2 Na5 Nc3 Bg3 Ra7 Ra8 Bd6 b8Q Bac5 Rb1 Qg2 Rb2 Qg1 Rd2 a1N+ Kc4 Nc2 Kb3 Rd7 Ra7 Rb7+ Kc4 Rb1 Qb2 Ra1 Kb3 Qh2 Qe5 Qhh8 Rd5 Qh6 Qd4 Qg7 Qe5 Ncb4 Qd2 Nc2 Qdd4
r1R1R2q/b3qN1B/1pKRnnQ1/7P/1rk2Rb1/1pB1QrNb/3b1B1r/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 e4 Kd6 d4 g5 h4 f5 a4 c5 h5 b3 a5 c4 a6 f3 Ke3 g3 a7 f2 Nh3 g2 Qf3 g1B Bd3 c3 Ra4 g4 Nd2 g3 Nf1 g2 Ng3 c2 Bb2 c1R Bc3 Nc6 Ng5 Rb8 a8Q Rc2 Qa6 f1R+ Kf4 Bf2 Qe3 g1Q Rh3 Bh6 e5+ Kd7 d6 Qe7 d5 Nd8 Kf3 f4 Ke4 f3 Nf7 Ne6 Rd4 Qh1 Rh4 Bg1 Rc4 Rh2 Rf4 Qg2 Bb1 Qb2 Bc2 f2 Rc7+ Ke8 d7+ Kf8 d8B Nf6+ Kf3 Ke8 d6 Rf8 Rc5 Kd7 Bh7 Ra1 Bda5 f1B Bb6 Bh3 Qad3 Rba8 Qg6 R1a4 Rd5 Kc6 d7 Rc4 d8R Rb4 R5d6+ Kb5 Bbd4 Bd7 Rc8 Bf2 Qc1 Be3 Ba7 Bd2 Bf2 Be3 Qe1 Ba7 Qe3 b6 Rfc4 Ng8 Ke4 Bg5 Kd5 Bf4 Qf3 Bd2 Qe3 Bg4 Nh6 Rf3 Nf7 Bh3 Rf4 Nc5 Rb8 Bdg4 e6 Qa1 Rc8 Nf6+ Ke5 Qd7 e7 Ne6 Rdd4 Qe8 Kd6 Qh8 e8R Qb1 Rb8 Qe4 Rd5+ Kc4 Kc6 Nd7 Rbc8 Nf6 Bd4 Qe5 Rd6 Qg5 Qf5 Qgg7 Qg5 Qgf8 Qg6 Qe7 Bc3+
1KBbbb2/1nQ1R1n1/rp3nq1/3p3r/QR1kqQn1/6PN/7R/bN2BQ2 b - - 0 1 illegal: No possible last move, all moves rejected
qk1n1Kn1/5Q1P/1r2bq2/np1p1B2/2bQR1rR/1b1Rbn2/1R2N2Q/3NB3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 d5 a4 Kd7 c4 Kc7 h4 b5 f4 g5 a5 g3 h5 b3 f6 g4 c5 b2 f7 g2 f5 g3 h6 Qh4 f6 Bd6 f8R Ra6 c6 Rb6 a6 Be6 a7 Bc5 f7 Qf6 Ne2 g1Q a8R g2 Nbc3 b1B+ Qc2 Qh2 h7 g1N R8a3 Nf3 Bd2 Ng5 Nd1 Ba2 Be1 Qg1 Rh4 e4+ Kd2 d3 Re8 Qh2 f8Q Nf7 Bh3 Bc4 Bf5 Nd8 Rb1 Bf2 Rb2 e3+ Kc1 Kc8 c7 Nc6 Qf7 d2+ Kb1 Qg2 Rd3 Na5 Qc3 Qgg7 Kc2 Qf8 Qd4 Kb7 Kc3 Bg1 Nf2 d1B Re7 Kc8 Kb4 Bdb3 Kc5 Qe8 Nd1 Qc6+ Kb4 Qa8 Kc5 Kb7 Nec3 e2 Re8 Bd7 Ree4 Be3 c8Q+ Ka7 Qc6 Kb8 Qce6 Bc8 Qh5 Bd7 Qef7 Be6 Qh6 Ne7 Qhh5 Rg8 Qh6 Rg4 Qhh5 Nac6 Kd6 Ng8 Qh6 Qh8 Qf4 Qg7 Qh2 Qf6 Bf2 e1N Ne2 Nf3 Be1 Nh6 Qhe5 Qg7 Qg3 Na5+ Ke7+ Qe5 Kf8 Ng8 Qg1 Qf6 Qh2+
1Nq2b2/k3RB1p/1bR4B/3qbPr1/3r2Nn/2QR3p/1RnQKQ2/1b1r1r2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 a5 g4 e5 b4 d5 c4 Kd7 b6 Kc6 g5 Kb7 g6 d3 b5 d2+ Kf2 a4 f5 a3 g7 a2 c5 e3+ Kf3 e2 Bg2 e1B Ne2 d4 Rh3 d3 Nd4 Nc6 Na3 Nge7 g8Q Ng6 Qc4 Rg8 Nac2 Ra4 Ne3 Be6 Ng4 Bf2 Qc3 Nb4 Nc6 Nc2 Rb1 a1R Rb2 Ba2 Qe2 d1Q Bh6 d2 Bh1 Kc8 b7+ Kc7 Rg3 h3 b8R Qd7 Rd8 Kb7 b6 Rc1 Rc8 Bb1 Re8 Bd4 Re7 Nh4+ Ke4 Rg5 Kd3 Ka6 Bd5 Qh1 b7 Rf1 b8Q d1R+ Qed2 e4+ Ke2 e3 Qf4 Qe8 Bf7 Qd5 Kd3 e2 Qf2 Qed7 Nb8+ Ka7 c6 Bb6+ Qfd4 e1B c7 Rc4 c8R Qc7 Rf3 Bg3 Ke2 Be5 Qf2 Rd4 Rd3 Qcb7 Rc6 Qbd7 Ree6 Qc8 Re7+
4B1N1/5QpP/1r2rn2/2bN2kq/1rb2Nnq/pr1bBKR1/b4R1R/QR6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 e4 d5 h4 a5 b4 f3 h5 d3 b6 a4 c5 d4 b5 a3 c6 d2 e5+ Kg5 c7 f5 b7 d3 b6 g3+ Ke3 f2 e6 g2 e7 f4+ Ke4 f3 e8N Nc6 b8Q Ra6 h6 Be6 c8R Nf6+ Ke3 Ba2 h7 Ne5 b7 Re6 Ne2 g1R Rc2 Rg4 Rh2 Rb4 Nbc3 Bd6 Bh3 f1B Qa7 f2 b8R Neg4+ Kf3 Bc5 Nf4 Reb6 Qe1 d1R Ncd5 d2 Rb1 Bfc4 Qf7 f1B Rf2 Bfd3 Qe5+ Bf5 Qa1 Re1 Bg2 d1Q+ Rce2 Rb7 Be3 R7b6 Bh3 Bfd3 Rb3 Ne4 Nef6 Re8 Bf1 Ree6 Ng8 Nef6 Rb1 Qe7 Rf8 Rb3 Rg2 R6b4 Rg3 Qd8 Bh3 Rh1 Bf1 Rh6 Bg2 Qh1 Rc2 Qh5 Bh3 Reb6 Rh2 Ne4 Bf1 Rhe6 Be2 Nf6 Bd1 Rb2 Ba4 R2b3 Be8 Qh4 Rhg2 Qc7 Rc2 Qe5 Rh2 Qf5 Bd7 Qg6 Be8 Qgh5 Kg2 Rc3 Ne2+ Kf5 Qe7 Rcb3 Rf7 Kg6 Qf8 Ne4 Rf4+ Kg5 Qf7 Bd6 Rff1+ Bf4 Rf2 Nf6 Bc5 Bd6 Kf3 Bf8 Nef4 Be7 Bd4 Bc5 Be3
NQ1Rb2k/1R2np2/B2q4/K1B1rnn1/2Nr1N2/1NQqbqP1/3q1p2/5nR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 e4 a5 c4 h5 b4 f3 g3 a4 b6 d3 Kc3 d2 b5 h3 b7 h4 c5 d4+ Kb4 d3 b6 a3 e5 h2 e6 h3 e7 a2 c6 Nh6 c7 Ra5 Qa4+ Bd7 c8Q d1Q Nd2 Nf5 Bb2 Bh6 Qb5 Nc6+ Kc5 Be3+ Kc4 Rh4+ Kc3 Rd4 Rc1 a1Q b8R Qa2 Nc4 d2 b7 Qb1 Qb4 Re5 Ne2 Qa2 Rg1 h1N Ra8 h2 b8N Nf2 Rb1 h1Q Na6 Nh3 Qbb8 f2 Nc5 Qf3 Nf4 Ng5 Nb3 Qa3 Bd3 Qd6 Ba3 Qe1 Bc5 Qee2 Kb2 d1N+ Ka3 Qd2 Ka4 Nc3+ Ka3 Nce4 Be2 Qd3 Ka4 Nd2 Qcc7 Nf1 Qa5 Qd2 Qc3 Na7+ Kb4 Nc8 Bd3 Bb5 Be2 Qdd5 Rb2 Q8d6 Ka5 Qde4 Rb1 Qed3 Rb2 Kd7 e8N Ke7 Nc7 Kf6 Na1 Be8 Rb7 Kg7 Nb3 Ne6 Qa7 Nce7 Rd8 Kg8 Qb8 Kh8 Na8 Ng5 Ncb6 Q3c2 Ba6 Qcd3 Nc4
1Nr2B2/1brB1p2/2N2Q2/3Kn1bQ/R1n5/bNBpqP2/3qn2B/R1nkb3 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 c4 a5 h4 d5+ Ke5 g5 e4 b3 h5 Kb4 b6 d3 h6 g3 h7 a4 c5 b2 c6 d4 c7 d2 f3 g2 b7 d3 Rh5 g4 Nc3 b1N Qc2 d1Q Be3 a3 Rg5 g3 Nh3 g1B Rg4 g2 Nb5 a2 Na7 Nf6 Ng5 Bf2 Qc6 Kb3 Ne6 g1N Bh3 Be1 Bc5 Na6 b8B Bb7 c8N Kc2 Nb6 Nb4 Nd7 Qd2 Nd4+ Kd1 Nb3 Qb6 Qe6 Rg8 h8B Ne2 Nc6 Ra7 Be7 Bh6 Bf8 Bg5 Bc7 Qbe3 Ndb8 Nd7+ Kd6 Ne5 Qf6 Nc2 Kd5 Nc1 Rf4 Nba3 Bd7 Nac4 Bhg7 Ng6 e5 Nd4 e6 Nge5 e7 Ne2 e8Q Rh8 Qee6 Rg8 Qh3 Rh8 Rb1 a1B Qh5 Bb2 Ra1 Ba3 Rh4 Na5 Ra4 Nac4 Bb4 Rc8 Bc3 Ba6 Bd6 Rac7 Bh6 Bb7 Bhf8 Ng6 Bg3 Nge5 Bh2
1q4r1/R1b1PN1p/4k1b1/p3N3/2Q1B1bR/qb2B1Nr/q2qQQ1n/3Q1n1K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 f5 Kg2 d5 c4 h3+ Kh2 f3 e4 f2 b4 d3 e5 f4 c5 d2 g5 f3 b6 d4 b7 d3 b5 Na6 b8N Nh6 c6 Bg4 b6 Nc7 b7 Rg8 e6 Nd5 g6 Ne3 Qb3 d1Q g7 d2 Nd7 Qb8+ c7 a6 Bb5 f1Q Ne2 f2 Ng3 Qd3 c8Q f1Q Ne5 Qf7 Nc3 Nf1+ Kg1 Kf6 Qcc4 Bd6 e7 Bc7 Bc6 h2+ Kg2 Q1c2 Nb5 d1B+ Bd2 Qa2 Nd6 Qa3 Be3 Qd2+ Qe2 Ra7 Qb1 Ke6 Be4 Bb3 Qd1 Ra8 Rg1 Qf2+ Kh1 Qda2 Ndf7 a5 Rc1 Ra6 Rc3 Rc6 Rd3 Rc3 Rd7 Qe1 Qf2 Qed2 Qde2 Qa7 b8Q Rd3 Qd8 Qb8 Nf5 Rc3 Rg3 Rd3 Rh3 Rc3 Ng3 Rd3 Kg2 h1B+ Kg1 Bg2 Rh4 B2h3 Kh1 Bh5 Rd4 Ng4 Rb4 Ngh2 Rb7 Bg6 Ra7 Bg4 Qd4 Rh8 g8Q Rc3 Qe8 Rg8 Q8b5 Qdc2 Qdd1 Qcb2 Bc1 Rf3 Be3 Qd2 Nf5 Rh3 Ng3 Qdb4 Qc5 Qbd2 Qcc4+
3N2b1/2BPrq2/2nKBQ2/q2p2NR/pRk1Br1Q/4bb1B/n2qq1R1/b7 b - - 0 1 illegal: No proof kernel
1n1q1BQq/1n1pn3/5kNR/bQnN2RB/3r4/qpP1Q2K/8/qbQ1rR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 f4 Kf7 Kf2 e5 a4 b5 g4 h5 Kg2 e4 a5 b3 c3 d3 g5 d2 g6+ Kf6 g7 h3+ Kg3 h2 a6 e3 a7 b2 Bg2 h4+ Kg4 b4 Nh3 e2 Na3 b1Q Nc4 e1N Ba3 b3 Bf3 Nd3 Ne5 Qa2 Ng6 Ne7 g8Q Bb7 Qc1 d1N Bc5 Qb2 Ra5 Be4 Qc4 Qa2 Qb5 N1b2 Rf1 h1Q Bd6 Kf7 f6 Qa3 f5 Nc5 Nhf4 h3 Kg3 h2 Bh5 Bd3 Kh3 Nba4 Ra6 Rh7 Rg1 Be4 Rg5 Nb7 Bb4 Nac5 Rc6 Kg8 f7+ Kg7 Qe3 Qha1 f6+ Kh6 Re6 Bb1 Rd6 Bg7 f8Q h1Q+ Kg4 Qh2 Qg8 Bf8 f7 Rg7 Nd5 Qe5 Kh3 Rh7 Ndf4 Qh8 Rg1 Rg7 Rf1 Kg5 Rd5+ Kf6 Rg5 Nba6 Rh1 Rc8 a8Q Nb8 Qc1 Rc6 Qa7 Re6 Rf1 Re1 Qab6+ Ne6 Qbe3 Nec5 Rh1 Nd5 Rf1 Bd6 Rh1 Bc7 f8R+ Rf7 Rf1 Ba5 Re8 Rf8 Re7 Re8 Rh7 Re4 Rh6 Ne7 Rfg1 Rd4 Rf1 Ne4 Bd6 Nc8 Bf8 Nec5 Kg2 Ne7 Kh2 Q3a2+ Kh3 Qa3 Nd5#
NB3qnn/2P1rB1N/2bR1b2/BQ1ppr2/b4k2/4R3/Q3N3/q1qNKb1q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kf6 f4 h5 c4 e5 g5+ Kf5 c5 a5 g6 h3 c6 a4 g7 e3 c7 e2 b6 d3 b5 h4 b7 d2+ Kf2 h2 b6 a3 Qa4 d1B Qb5 h3 Nc3 a2 Bd2 Nc6 b8B Nce7 b7 Rh7 Ke1 Ba4 Nd1 Ng6 Ba5 Be7 Rc1 a1Q Rc6 Bf6 Rd6 Ke4 f5 Qf8 Bg2+ Kf4 Bd5 Nh8 Bf7 Ne7 g8Q Rh5 Qg2 Ng8 Qgd5 Rg5 Qa2 Ra6 Rd2 Re6 Rd5 Re7 Rd6 Bg7 f6 Rf5 Nf3 Qc1 Nd4 Qa1 Rg1 h1B Rg3 h2 Re3 Be4 Bg6 Bf3 f7 Bf6 Bh5 Bc6 Bg6 Qg7 f8N Qf7 Nh7 Qf8 Bf7 Qc1 Re6 d5 Rd6 Be6 Ba7 Bc8 b8N Ba6 Nd7 Qa1 Bb8 Qc1 Nf3 h1Q+ Ng1 Qa1 Nb6 Qc1 Na8 Qa1 Kd2 e1Q+ Kd3 Qec3+ Ke2 Qc5 Ke1 Qcc1 Qb4+ Bc4 Qb5 Bf1 Ne2+
1r1N1RKb/BnP3N1/B1b3Q1/p1Q1r1Q1/b1n5/1bk1p3/6BR/rq2rBq1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 Kf7 f4 Ke6 g4 Kd5 b4 a5 c4+ Kd6 c5+ Kd5 g6 e5 c6 h5 g7 d3 Ke3 Kc4 g5 d5 f5 h4 b5 a3 f6 a2 f7 h3 g6 h2 b6 Ra6 b7 Qd6 c7 Nc6 b8Q Be6 Qe8 Qb4 Qg4 Nge7 g8B Nd8 g7 Nb7 Nd2+ Kc3 Nc4 d2 Qg5 d1Q Nh3 Ng6 Nd6 Qb1 Nf4 Be7 f8Q Bf6 Nf7 d4+ Kf2 d3 Kg3 e3 Nh5 e4 Nd8 d2 Qfc5+ Bc4 Bd5 e2 Kg4 e1R+ Kf5 Re6 g8B Ne5 Qeg6 Re8 Ng7 e3+ Be4 Re6 Ba3 Qdc1 Bf7 d1B Be8 Bb3 Bb5 Ba4 Ba6 Rg8 Nc6 Rb8 Nd8 Kd2 Bb2 Bcb3 Bd4 Re7 Nc6 Nc4 Nd8 Rf7 Ke6 Re7+ Kd5 Re8 Bf3 Re4 B3g2 Be5 Ke6 Bf6+ Kf7 Re5 Nf5 Bh8 Ng7 Qd1 Kg8 Qg4 Qa3 Qg3 Ba7 Kc3 Qc5 Qf2 Be2 Qg3 Rf1 h1B Rf8 Qf2 Bef1 Qg1 Bh3 Bhc6 Bhg2 Qb2 Rd1 a1R Rd4 Qa2 Rh4 Qb1 Rh2
Q3R1q1/2p1rQkr/B2N3q/K2R1bq1/3Pq2N/np1b1b2/nB3R1b/2R2Q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 b5 Kd2 h5 g4 f5 e4 Kf7 a4 b3 Kc3 f3 e5 f2 e6+ Kg7 e7 h3 Kb4 h2 a5 h4 a6 f4 a7 b2 d6 h3 e8Q f3 g5 Nd7 g6 Ne7 Qd2 Rh7 Na3 b1Q+ Qb2 Ne5 d7 N7c6+ Kc3 b4+ Kb3 Qe4 Ka4 b3 Bg2 f1Q Qe2 f2 Nf3 Qg5 d8R Nc4 Qd1 Qg1 Bf1 Nb4 Bb2 Bd6 Nb5 Na2 Rc1 Bf5 Nh4 Na3 Ka5 Q1g4 Rg1 h1Q Rg2 Bh2 Nd6 Qg3 Bd3 f1B Ba6 Bd3 Rf2 Rb8 a8Q Rb5+ Ka4 Re5 Qf1 Re7 Ka5 Q3e3 Nc8 Qhg1 Rd5 Qh6 Nd6 Qeg5 Rc4 Bf4 Qd7 h2 Rc1 h1B Qde8 Bh2 Qg8+ Kf6 g7 Bf3 Qge8 Q1g4 g8R Qg2 Rh8 Qg8 Qd7 Kg7 Qe6 Qgg5 Qd7 Qge6 Re8 Qf7 Qe6 Qg8 Qf7+
1rqr2n1/Q1ppB1R1/Qb3B1R/1q1rQ1Q1/qnPq4/r3NK2/6Bk/2bN4 b - - 0 1 illegal: No possible last move
1Q1q4/1pn1b1Rr/bq1Q1NnB/k7/2Q1rNNb/2Kn1Bp1/Pn4b1/1R3N2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Kd7 e4 c5 d4 Kc7 Kd2 Kb6 h5 f5 h6 g5 e5 g3 d6 g2 e6 g4 d7 b3 h7 b2 d5 c4 e7 c3+ Kd3 f3 e8Q f4 d6 c2 Rh5 f2 Rd5 f3 Qee2 Ne7 Kc4 Na6 Nh3 g1B Rg5 Nc7 Nf4 Ng6 Kc3 Be7 Nd2 b1Q Bg2 f1B Nh5 f2 Nf6 Ra4 Bf3 Re4 Qc4 g3 Rg4 Ka5 Rg5+ Qb5 Rb1 Bd3 Rg4 Qb6 Nf1 Be2 Bf4 c1N Bh6 Nd3 Qd2 Ngf4 Rg7 Ng6 Ng8 Bh4 Nf6 Qf8 d8N Bh3 d7 Bg2 Ne6 Qd8 Ne3 f1N Nf4 Bf2 Qd1 Nd2 Nf1 Qb8 d8N Bc5 Nf7 Qd8 Ne5 Be7 Qe6 Nc4 Neg4 Ncb2 Qc4 Rf8 h8Q Rf7 Rg8 Rh7 Rg7 Ne1 Qd6 Bd3 Qcg8 Ba6 Qc4 Ned3 Qf8 Qd7 Qa8 Qd8 Qb8
1q3b1b/Rp3nq1/1QR1N1P1/1r1k1B1K/5Qp1/1qn3BR/2rN2b1/Rq1Qb3 b - - 0 1 illegal: No proof kernel
2rRn3/Kp2B2R/NPb1Q2r/N1q5/3bn1bQ/Q2b1pB1/4qr2/2kB2Qr b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 b5 exf4 Qb3 Bh6 Qc3 Bf8 Qb4 axb4 Kf2 Ke7 a4 Kf6 d4 Kf5 e4+ Kg5 g4 h5 a5 c5 d6 f5 d7 h3 a6 h4 a7 c4 e5 h2 d5 h3 d6 c3 e6 c2 e7 b3 e8Q b2 Na3 b1Q Ne2 Nf6 Nd4 Qb2 Qe6 Qa5 d8Q Na6 d7 Qb6 Nc4 Bc5 Na5 Rh6 Be2 Nc7 Bd1 Ne8 Ra4 Rb8 a8Q Qc6 Be3 c1R+ Nc2 Bd4 Ke2 Qd6 Kd3 Qc5 Nb4 Rc2 Bf2 f3 Na6 Kf4 g5 Ne4 g6 Re2 Be1 f2 g7 f1B g8Q Qa2 Qg1 Rf2+ Be2 Qb2 Qdf6 Qa2 d8B Bd7 Be7 Rc8 Qef7 Qe6 Ra1 Qee5 Rd1 Bc6 Qc4 Bd7 Qfe6 Bc6 Kc2 Ke3 Kb3 f4 Ka4 Bd7 Bg4 Bd3 Rd2 Qh5 Bd1 Qe2 Qa7 Qg5 Qac5 Qf5 Qa3 Qc5 Qf6 Bg4 Qh4 Qc7 Qe6 Qc5 Qf1 Rg2 Bg3 Rf2 Rg1 h1B Rg2 Bf6 Qg1 Bd4 Rh2 Bhf3 Rb2 Bg2 Rb4 Kd2 Rh1 Bh8 Rd4 h2 Rd8 Bb2 Nc4+ Kc1 Ka5 Qf5 Kb6 Qf8 Qc5 Bd4 Ka7 B2f3 b6 Qf5 Qcd6 Qc5 Na5 Bg2 Qf1 B2f3 Rg1 h1R Rg2 Nc3 Rh2 Bc6 Qg1 f3 Rh3 Ne4 Rh2 Qd5 Qa3+ Kb1 Bed6 Qc5 Qhf6 Rg6 Rh7 Rgh6 Qh4 Rb8 Be7 Rc8 Qb4+ Kc1 Qa3+
2qn1b1N/P1Rq1n2/p2qb1Nn/1r4RK/1Q1r1Q1N/k3p1B1/2Bq4/B1nN4 b - - 0 1 illegal: No proof kernel
1Q1QKBkq/1q2R1b1/b1nbNbpb/2n5/Np1B2R1/nP2B3/r7/3qR2B b - - 0 1 legal: proof: e4 c5 g4 h5 d4 hxg4 a4 cxd4 e5 b5 e6 a5 Na3 b4 Bd2 fxe6 Bf4 e5 Bc1 e4 Nb1 Ra6 Nh3 Rb6 Ng1 Rb5 axb5 Rh6 Ke2 Rh3 Ke1 Rh8 Ke2 Kf7 f4 e5 c4 d5 h4 g6 b6 a4 c5 g3 c6 a3 b3 d3+ Ke3 g2 b7 a2 h5 d4+ Kf2 d2 Kg3 d3 h6 e3 h7 e4 f5 e2 Kg4 e1N c7 e3 Nh3 g1B Be2 Bg7 Bf1 e2 Nc3 Nf6+ Kg5 Bc5 Bg2 Nc2 Nf4 e1B Rg1 Bd6 Ne6 Na3 Bh1 Nfd7+ f6 Nc6 b8Q Ba6 c8R Nc5 Na4 Qf8 Rb1 a1B Rc7+ Qe7 Ra7 Qb7 Rg4 Rc8 h8B Kg8 Qe2 d1Q Be3 d2 Qd3 Beg3 Qd5 Qc2 Re1 d1Q Qd4 Qc3 f7+ Kh7 f8B Kg8 Qf6 Bb2 Qe7 B3e5 Qd8 Bc1 Qbc7 Ra8 Qcb8 Qc8 Re7 Qb7 Kh4 Bh6 Bf6 Bg7 Kg5 Bd4 Be5 Qb2 Bf6 Qh2 Be5 Qh8 Bf6 Bc3 Bd4 B3b2 Bc3 Bc4 Bed2 Bf1 Nb6 Nb5 Bf6 Ra2 Na4 Na3 Bc3 Ba6 Be5 Qh7 Bdf4 Bh6+ Kf6 Bd2 Bg5 Bdc3 Be3 Qh8+ Bg7+ Kh7 Kf7 Ba1 Bf8 Bcb2 Ke8+ Kg8 B5f4 Bbg7 Bg1 Bae5 Bd4 Bef6 Bfe3
b7/3B1pRq/pb4nQ/2BQQ1KB/qR1rN3/PrkN1r1b/B4r2/1q1r4 b - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 bxc4 h5 Nd7 Rh3 Ne5 Rh1 Ng6 hxg6 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 Kd7 b4 Ke6 d4 Kd5 g7 e5 b5 h5 g6 c5 a3 e3+ Kf3 e4+ Ke2 a6 b6 h4 b7 c3 b8Q Kc4 d5 f3+ Ke1+ e2 Kf2 h3 Ke3 c2 Kf4 f2 d6 e3 d7 h2 Qdd6 Qa5 d8Q Rh4+ Kg5 Rd4 Qb2 Bh3 Qf4 Qa4 Qbb6 Ne7 g8B Rb8 g7 Ng6 Nd2+ Kc3 Qd5 e1Q Be2 f1R Qfe5 c4 Ngf3 Bc5 Rg1 h1B Bh7 Rf2 g8B Rb7 Qbc6 Rb3 Rb1 Bb6 Qcf6 Qd1 Ne1 Be4 Bh5 e2 Nd3 e1R Qg7 Re3 Qh6 Ref3 Rg3 Qh1 Rb2 Nh8 Bf5 Ng6 Bh7 Qh2 Bd7 Qh1 Qdd6 Ba8 Qdd5 Qh2 Nf1 Qh1 Be3 c1R Nd2 Rd1 Rb1 Kc2 Ne4 c3 Qb5 Rc4 Bc5 Rd4 Qc6 Qh2 Qcd5 Qh1 Nd6 Kd2 Rg2 c2 Rg1 c1Q Rg4 Rc3 Rb4 Qb1 Rg1 Rb3 Rg2 Nh8 Bhf5 Kc3 Bfe6 Qe1 Rg3 Qe4 Rg2 Qh7 Ne4+ Kc2 Rg4 Ng6 Qdd6 Rb2 Ba2 Ne7 Kh4 Rb3 Rg7 Ng6+ Kg5 Rf4 Nc3 R4f3 Qdd5 Kd2 Ne4+ Kc2 Ng3 Kc3 Ne4+
qB1B4/p3Kbpq/1n1nn3/6N1/r1Q1Q2q/1qb1q1b1/P2RB2R/2R1BkN1 b - - 0 1 illegal: No possible last move, all moves rejected
2n1b2b/1Bn2k1q/1R2p1q1/1q1BP1Nr/Bq3Q1N/pqRQ4/3n3K/B2q1N2 b - - 0 1 illegal: No possible last move
2n1nqrn/p2b2Qq/1kR4r/1p2nQ2/1PBn1qn1/K5N1/B2RBN2/2N3B1 b - - 0 1 legal: proof: f4 g5 d4 e5 d5 exf4 d6 cxd6 Qd2 d5 Qd1 d4 h4 gxh4 a4 b5 a5 Be7 Be3 Bc5 Bc1 Bb6 axb6 Qf6 Kf2 Qe7 Ke1 Qd8 Kd2 h5 b4 d5 g4 Kd7 e4 Kc6 c4 f5 Kc2 f3 Kb3 f4 e5 d3 b7 h3 c5 d4 e6 f2 e7 f3 e8B+ Bd7 g5 h2 g6 h4 g7 h3 Nd2 Nh6 g8Q Na6 Qg3 Nc7 Qf4 Nf7 Ka3 Rh6 Kb2 Nh8 Bg6 Qf8 Ra3 Ne8 Nb3 d2 Be2 f1Q Ra1 f2 Bf7 d3 b8N+ Kb7 c6+ Kb6 Qe1 d1N+ Ka3 d2 c7 Nb2 c8B d1N Na6 Nc3 Nac5 Nca4 Ra2 Nd3 Rd2 Ne5 Qf5 Rb8 Bec4 Qd3 Qe2 f1Q Qeg4 Qf4 Ne2 Qb1 Re1 h1N Nd3 h2 Qg7 Nf2 Ng3 Nfg4 Nf2 h1N Bb7 Qd3 Bf3 Rd8 Be2 Rc8 Qh5 Qh7 Qf5 Rd8 Bb2 Rb8 Rc1 Rc8 Nh5 Ng3 Rcc2 Rd8 Nc1 Rb8 Ba2 Rd8 Bfc4 Rc8 Bf3 Ne2 Ng3 Nd4 Bc3 Rcc6 Bfe2 Rcg6 Qgf7 Rg8 Qg7 Kb7 Bb2 Nb6 Ba1 Nc8 Bb2 Nb3 Bd4 Kc7 Nfe4 Kc6 Bg1 Nd4 Nf2 Kb6 Bf7 Rh4 Rc5 Rh3 Bfc4 Rh6 Rc6+
rN1bnQ2/Q1Q4p/1p2kn2/2b2q1q/1N2B3/R1q1RqQq/5BqP/1K2N2b b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 f5 Bg2 Ra5 Bh3 exf4 Bf1 f3 Qd3 f4 Qd1 Rf5 gxf5 Bc5 Ba3 Be7 Bc1 Bf8 Kd2 Ke7 e4 d5 c4 g5 Kc2 d3+ Kb2 g4 a4 g3 e5 b6 f6+ Ke6 c5 b3 f7 g2 a5 d2 a6 f2 a7 f3 a8Q d4 c6 d3 c7 Nd7 Ra3 Ndf6 Nc3 Ne8 Qa4 Qd4 Kb1 b2 Na2 Ngf6 Qe1 d1Q Qa7 d2 Bd3 f1Q Be4 f2 Nb4 Be7 f8Q Qc3 Nf3 g1B Qe3 Qh3 Ne1 f1Q Qg3 Bd7 c8Q Qfg2 Qcc7 Bgc5 Rf1 Bc8 Rf3 Bb7 Re3 Bd8 Bc6 Kf5 e6 Qdf3 e7 d1Q Bd5 Qde2 Be4+ Ke6 Bd2 Qfh5 Bc1 Qef3 Bd2 Ng7 e8N Rg8 Nd6 Nge8 Nf5 Bd5 Ne7 Rh8 Nec6 Rg8 Rb3 Rh8 Nb8 Bc6 Ka2 b1Q+ Ka3 Q5f5 Bc2+ Qfe5 Nd7 Nd6 Re4 Qf4 Bd3 Qh1 Qfg7 Be7 Be3 Ra8 Qf8 Nde8 Bf2 Bd8 Re3 Qfe4 Bc2 Qeh5 Nb8 Qbd1 Ka2 Qdd5 Kb1 Qdf5 Re2 Qee3 Bd3 Qg1 Ra3 Bh1 Bc2 Qgg2 Be4 Qef3 Re3
b3R3/1p1K4/nbR3rN/bR1Q2nQ/6pb/2N2kPR/q2Bqn2/nB1bB3 b - - 0 1 illegal: Other
4K1B1/2p1n3/r1PBR2n/Q1pn4/Q1B1r1r1/1B3r1R/nQq2bn1/k4NNq b - - 0 1 illegal: No proof kernel
R1nq2nR/nnBBq3/p1n1B2N/qrpKN3/b1P5/1Qb5/BQ4R1/1q5k b - - 0 1 legal: proof: e4 g5 h4 d5 g4 dxe4 f4 gxf4 g5 b5 a4 bxa4 g6 a6 Nc3 Ra7 Nb1 Rb7 Nc3 Rb5 Nb1 Rg5 hxg5 Bh6 Ra2 Bg7 Ra1 Bf8 Ke2 Kd7 b4 Kd6 c4 Ke5 g7 f5 d3 c5 g6 h5 b5 a3 b6 e3 Kf3 h4 b7 e2 Qe1 h3 Qg3 e1N+ Ke2 h2 d4+ Ke4 d5 e5 d6 f3+ Kf2 f4 d7 a2 Bd2 Nc6 b8Q Nc2 Qa7 N2d4 Na3 Nb5 Qb6 Nba7 Rb1 a1Q Nc2 Qa5 Ke1 f2+ Ke2 f3+ Kd1 Bd6 Be2 f1N Qb2 f2 Qgb3 Ng3 Nd4 f1N Kc2 Nf5 Ngf3 N1g3 Bd1 Nfe7 Bf4 Ngf5 Rg1 h1Q Rg2 Bb8 Ra1 Nd6 Nf5 Rh3 Nh6 Nb7 Bh2 Rg3 Rc1 Kf4 Kd3 Bc7 Bc2 Qhe1 Bb1 e4+ Kc2 e3 Kd3 e2 Ba2 Be5 Rc2 Qf8 d8R Bd7 Ra8 Qfd8 Rc3 Nec8 Rc1 Nge7 g8B Bc3 Be6 Ng8 g7 Qf1 Rc2 e1Q+ Rce2 Be8+ Bd7 Qh1 Re5 Qhg1 Rh5 Qee7 Nf7 Qh1 Rh8 Qa1 Nh6 Qc1 Bg1 Rg6 Ne5 Qb1+ Rc2 Kg3 Ke4 Rf6 Kd5 Rf1 Bf2+ Kg2 Bg3+ Kh1 Bh2 Bh5 Rg2 Bd1 Neg4 Rf6 Bc7 Rf2 Ne5 Re2 Qb6 Ba4 Q6b3 Re3 Qb4 Bd4 Qb6 Rb3 Qb4 Bc3 Q4a3 Rb5 Qab3 Qg6 Nhg4+ Nh6 g8B Qc2 Be6 Qb1 Nh2 Ng8 Nhg4+ Qbh7 Nh6 Qf5 Q3a3 Qb1 Qab3
1B1b2k1/2RKRR2/3b4/1RQ1q1n1/Bp4nb/3NBb2/pP1qN3/nQ1b1r1n b - - 0 1 legal: proof: f4 c5 g4 a5 d4 cxd4 a4 b5 g5 e5 g6 exf4 Bg2 b4 Nc3 hxg6 Nb1 g5 Bf1 g4 Bh3 Rh5 Bf1 Rb5 axb5 Ra6 Ra3 Rh6 Ra1 Rh8 Kd2 f5 Kd3 Kf7 Kc4 g5 Kd5 g3 h4 f3 c4 a4 e4 g2 e5 g4 c5 f2 b6 g3 h5 f4 h6 a3 c6 a2 h7 f3 b7 d3 c7 d2 Qc2 d1B Qf5+ Nf6+ Kc4 d5+ Kb5 d4 Qd3 Ng4 Qc3 d3 Qa3 d2 Rh5 Nd7 Kc6 Qg5 b8Q Nc5 Qaa7 Bd6 Qa6 Ne6 Na3 Rf8 h8B Kg8 Qbb6 Bb7+ Kd7 Qf6 c8R Ng5 e6 Qe5 Be2 f1N e7 f2 e8R Bf3 Nc4 Nfe3 Re7 f1N Rc7 Nc2 Qc5 Rf7 Rb1 Na1 Qac6 Rf6 Qe4 Rf4 Bd3 Rf7 Ne2 g1B Bf6 g2 Bc2 Bf2 Ba4 g1B Bh8 Ng3 Qc2 Qg7 Ne5 Nh1 Nd3 Qe5 Bg7 Bh4 Bh6 Ne4 Bf4 Rf8 Rf5 Ng5 Rff7 Bh2 Rb7 Bc7 Rb5 Bd8 Bg3 Qe4 Bb8 Bd6 Q2c4 Qe5 Qe4 Bb3 Qf5 d1Q Be3 Qd2 Rc1 Bc2 Ndf4 Bb3 Qb1 Bd1 Nd3 Bg2 Rh7 Rf1 Rhf7 Ba8 Qd5 Bb7 Rc7 Ba8 Qd4 Bf3 Qc5
R1B1R2r/5p1b/5B1r/3NQBN1/2KN1q1r/2b1pq2/2B2Pr1/1bbrQnk1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 h5 e3 hxg4 Bb2 d5 Ba3 d3 Bc1 d4 e4 Nd7 Ne2 Nb6 Ng1 Nd5 exd5 Ra4 Bd2 Ra6 Bc1 Ra8 Kd2 Rh7 c4 Kd7 a4 Kd6 h4 Ke5 c5 Ke4 c6 b5 h5 e5 a5 g5 h6 b3 d6 g3 d7 b4 c7 b2 a6 b3 a7 g2 Ne2 Kf3 Rh5 g1B Ra5 e4 Qc2 g4 Ra2 e3+ Kd1 g3 Rb5 d2 Rd5 g2 Ra3 Qh4 d8Q Nf6 Rb5 Ng4 Qc3 Bh2 Qf6+ Bf5 Re5 g1R Qe6 Re8 c8B Bg6 Ra4 Ba3 a8B+ Be4 Qa5 Rg3 Nbc3 b1R Bc6 b2 B6d7 Rd8 Qd6 Rg1 Re7 Be5 Nd5 Nh2 Be6 Rf8 Re8 Qf4 Qc3 Rg4 Ra8 Rh4 Qcb4 Bg6 Bf5 Ra1 Kc2 d3+ Kb3 Bd4 Qdb8 d1Q+ Kc4 d2 Bc2 Be4 Bfh3 Qh1 Bhg4+ Kg2 Qc3 Rg8 Qd6 Ra2 Qa5 b1B Bb2 d1R Qe1 Nf1 Qf6 Rhg7 h7 Rg5 h8N Bh7 Ba1 Bc1 Ng6 Ra6 Nf8 Rh8 Ne6 Kh2 Bb2 Qhf3 Bgf5 Rg2 Ng5 Rd6 Qe7 Rdh6 Qd6 Bc5+ Bd4 Bb4 Qe7 Ba5 Qe4 Kh1 Bf6 Bc3 Nd4 Kg1 Qe5
Nq1n2rq/N4bB1/rnR2q1p/pQ2Q3/Bq1nB2R/P2B2QK/r3k2n/8 b - - 0 1 illegal: No possible last move, all moves rejected
2N4r/BrR5/1p1qB1kq/1q1RQb1N/5nQK/3BN3/1Pnn1Np1/q4r1n b - - 0 1 illegal: No extended proof kernel
Q3Qb2/qB2N2Q/1n2pN2/4P2B/1nrbQ2K/pbB4R/bk1nR3/1bbn4 b - - 0 1 illegal: No possible last move
1Rq2b2/N5Q1/1Br1BK1b/5bB1/3Q2B1/qp4pr/1pQPrn1n/N2n1R1k b - - 0 1 illegal: No possible last move, all moves rejected
2nb1nK1/7r/2Rb2Q1/1R4Nn/1rQqBpN1/kR2P1Bq/r1pp2Q1/5b1R b - - 0 1 illegal: No proof kernel
1QbB4/RR3n1Q/2b2kq1/2N3r1/1K3pBp/2nN1qr1/r3p1NP/1QnqQ3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 gxf6 Nd2 f5 Nb1 f4 e3 d5 Bc4 d3 Bb2 d2+ Kf2 d4 Bf1 d3 Ba3 Bg7 Bc1 Bd4 exd4 Qa5 Bb2 Qd5 Bc1 Qd8 a4 e5 c4 Ke7 g4 b5 a5 h5 a6 f5 g5 f3 Ke3 h4 d5 f2 a7 e4 Kd4 b3 Kc5 b4 d6+ Kf7 d7 b2 g6+ Ke7 g7 b3 Kb4 e3 c5 e2 c6 Qe8 d8N Nh6 g8Q Kf6 c7 Nf7 Qe1 d1Q Nf3 d2 Ne5 Nd7 Qh7 Rg8 Bh3 f1Q Nd3 Nc5 Ne6 Rg3 Nc3 b1R Bg4 b2 Na4 Nb3 Nac5 Qf3 Nef4 Qg8 Ng2 Qg6 Ra3 Ra1 Ra5 b1N Rb5 Rb8 a8Q Ra2 Qe4 Nc3 Rb7 f4 Bb2 Nc1 Rf1 Bf5 c8Q Bd7 Qc7 Rg8 Qb8 Bc8 Ra7 Re8 Qeb7 Re5 Qb5 Rg5 Ba1 Qd5 Rf3 Qa8 Re3 Qf3 Ree7 Qc2 Reb7 d1B Bb2 Qd2 Ba3 Ba4 Bb2 Qd1 Qb6+ Bc6 Kc4 Qf2 Ne5 Na4 Bc3 Qg1 Qb1 Qf2 Ba5 Qe3 Ned3 Nc3 Kb4 Qf3 Bd8+
2qr1q2/Rrk1NQb1/NR3nB1/1Qn1R1K1/P3RBbp/8/Qpq1b2p/n7 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 h5 g4 b5 d4 f5 e4 c5 e5 b3 e6+ Kc7 e7 h3 e8Q h4 g5 c4 d6+ Kb6 d7 c3 d5 b4 g6 b2 d6 c2 g7 b3 Qde2 h2 Qb5+ Ka7 Na3 b1Q Nh3 b2 Qf7 Rh7 Bd3 Nf6 g8Q Na6 Re1 Nc5 Re5 Bg7 Re4 Qc7 d8R Be6 d7 Qc8 Bd2 c1N Nc2 N1b3 Nb4 Qc2 Na6 Rb8 Rae1 Na1 a4 Rb7 Re8 Rh8 d8R Bd7 R8e6 Ka8 Nb4 Kb8 Rb6 Kc7 Qa2 Be6 Qf7+ Bd7 Rde8 Rg8 R8e5 Rd8 Ke2 f3+ Ke3 f2 Kf4 f1B Kg5 Be2 Nf4 Ne8 Rf1 Nf6 Ng6 f4 Ne7 f3 Bf4 f2 Rc1 f1Q Rd1 Qc3 Bc2 Bdg4 Rd7+ Kb8 Bd3 Qc2 Na6+ Ka8 Red4 Rb8 Bg3 Nd5 Qg8 Qf8 Bf4 Nf6 Bg6 Qd3 Rc6 Qc2 Rde4 Rb6 Rce6 Rb8 Qf7 Rb6 Nb4 Kb8 Ra7 Rb7 Rb6 Kc7 Na6+
8/kBKnB2q/1QRrR1R1/3pp2N/1Q6/2bP1bp1/nn1Rr1N1/1Bqq3b b - - 0 1 legal: proof: e4 b5 b4 h5 a4 f5 g3 fxe4 g4 hxg4 axb5 c5 Bh3 cxb4 Bg2 Nf6 Bf1 Ng8 Ke2 g5 Ke3 a5 Kd4 d5 Kc5 Kd7 h4 Kc7 f4 Kb7 c4 b3 b6 b2 h5 a4 h6 a3 h7 e3 f5 g3 f6 g4 f7 a2 Rh2 e2 Qa4 e1Q Ne2 g2 Na3 b1B Qb5 g1N Nf4 g3 Bd3 Bh6 f8Q e5 Nh5 Qe4 Nc2 Ne2 Ba3 Ra6 Ne3 Nc6 Ng2 Qg5 Kd6 Nb4 c5 Nf4 c6+ Ka8 c7 Nf6 Qe7 Bg4 c8B Nd7 Kc7 Bf3 b7+ Ka7 b8R Rd6 Rb6 Bc2 Rc1 a1Q Rc6 Na2 Bb7 Ra8 h8R Qh7 Be4 Nd3 Rg8 Nb2 Rg6 Bf8 Bf5 Bce4 Rb6 Qe3 Rcc6 Qd1 Qh4 Qc3 Bc5 Qcc1 Qf4 Bd3 Qfb4 Bde4 Re6 Bh6 Bg6 Be3 Bf5 Bd4 Rg6 Rf6 Be7 Bc3 Re6 Rd8 Rbc6 Rdf8 Nh4 Bh1 Ng2 Bf3 Bb1 Rd8 d3 Rf4 Nh4 Re4 Rd2 Re2 Ng2 Nb6 Qe4 Rd6 Qeb4 Nd7 Qb6+
BK4bq/1nn3rR/1n1Q1q2/2p1N2P/1R3prR/4Npk1/1b1B4/Q1r2BBb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Ke5 e4 b5 d3 c5 a5 g5 h5 f5 d6 b3 a6 b2 d7 g3+ Kf3 g4+ Kg2 b4 a7 b3 Rh4 f3+ Kh1 g2+ Kh2 Nh6 Kg3 Nf7 Qe1 Rg8 Bd2 Nd6 Na3 b1B Nc2 b2 Ra4 Ba2 Rb4 b1N Ne3 Qf6 d8B Rg7 Bc7 Nc3 Qa1 Na6 Bb8 Bg8 d4+ Ke6 Kf4 Nb7 e5 Na4 Bc7 Nb6 Bd6 Rb8 a8B Bd7 Bc7 Bc6 Bd6 Rd8 Bb8 Nc7 d5+ Kd7 e6+ Kd6 e7 Rd7 Nh3 g1Q e8R Rg6 Ng5 Bg7 Re7 Qg2 Bc3 Qb2 Bd2 Bh8 Rh7 Rdg7 Kg3 Ke5 d6 Qc3 d7 Qd4 d8Q Bcd5 Kf2 Kf4 Nf7 Be4 Qd6+ Qde5 Ke1 Kg3 Kd1 Bd5 Kc2 Qe6 Kd3 Kf2 Qa4 Na6 Nh6 Rf7 Qd1 g3 Qc7 g2 Be2 g1R Nc4 R6g4 Qa1 Rc1 Ne3 Qe7 Qc6 Qg7 Be5 Nc7 Bh2 f4 Bg1+ Kg3 Qd7 Qe6 Qd6 Re7 Nf7 Bc6 Ne5 Bb5+ N5c4 Qb2 Bf1 Bd4 Bg2 Qe5 Bh3 Qh8 Bg2 Reg7 Ke4 Na6 Ne5 Bf1 Ng6 Qa3 Bh3 Bb2 Bg2 Qc3 Bh3 Qf6 Ne5 Qh6 Kf5 Bg2 Ke4 Bh1 Bf1 Na4 Kf5 Qf6+ Ke4 Rf7 Kd5 Rfg7+ Kc6 Nb6 Qa2 Nc7 Qa4 Ncd5 Qa1 Ne7+ Kc7 Ned5+ Kb8 Nc7 Bb5 Nc4 Ba6 Nb6 Bf1
k2nR3/r4Br1/1K1Nb3/1P1q1q1p/QBq5/3nNQNb/pR1b1Q1p/4N2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 Kb7 c4 f5 b4 a5 g5 h5 e5 a4 e6 a3 c5 f3 b6 f2 e7 f4 e8Q f3 g6 h3 g7 h2 Nd2 a2 Qea4 Qg5 b5 Nd7 Rb1 Qf5+ Ne4 Ne7 g8N Nc6 Rb2 Bh6 Nf6 Rh7 Bd2 Ra7 Ng4 Nd8 c6+ Ka8 c7 Rg7 Bb4 Bd2 Bg2 f1R Ne3 f2 Nf3 Re1 Rg1 f1Q+ Qe2 Rb1 Ne1 Q1f4 Qf3 Ne5+ Ke2 Ra1 Ng3 Be6 c8N d3+ Kf2 Qc4 b7+ Kb8 Nd6 d4 N1c2 Rb1 Re1 Rd1 Re2 Rh1 Ne1 Bc1 Ngf1 d2 Ng3 d1B Bh3 d3 Bg4 d2 Bh3 Kc7 b8Q+ Kd7 Qa8 Kc7 Qc6+ Kb8 Qc5 Bb3 Qd4 d1Q Qd2 Qf8 Qc2 Bc8 Be6 Qdd5 Bf7 Bh3 Nef5 Ka8 Bg8 Qg4 Qc5 Qf6 Bf7 Qb7 Re4 Qc6 Ke2 Qfg5 Qf2 Nd3 Re6 Bd2 Re8 Ne5 Ne3 Be6 Kd1 Qd5 Kc2 Bc1 Kc3 Nd3 Qe4 Q5f5 Qef4 Qb7 Kd4 Bd2 Qe4 Ne5 Kc5 Qd5+ Kb6 Nd3 Qeg2 Qc4 Qgf3
bbn2q1b/q1r4N/RQ1Nn2p/8/1QP1ppkB/4RrNB/1RK1n3/6qN b - - 0 1 illegal: No proof kernel
2R2b1n/1r3r2/2BnN1p1/1rRP2R1/qk1q2Q1/3R1p1b/NbqQ2pK/N1B5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 Kg2 Kd6 d4 c5 h4 a5 b4 f5 e4 a4 h5 c3 b6 c4 b7 a3 h6 c2 h7 f3+ Kh2 a2 b5 c3 b6 f4 Nd2 g6 Rb1 a1Q Rb3 f2 Bb5 f1R Bc6 Ne7 Ne2 Nf5 Rg1 Nd7 b8R Ra7 b7 Ne5 d5 Kc5 Rg3 Nf7 e5 N5d6 e6 Qa4 e7 Qb6 e8N f3 Ra3 Kb4 Nb3 Qd4 Qd2 Rg8 h8Q Rg7 Qh7 Nh8 Nc7 Rf7 Qh4 Ra5 Qh3 Rb5 Ne6 Bd7 Rg1 Rd1 Na1 g3+ Kh1 Rf1 Rc8 Rd1 b8R g2+ Kh2 Rb7 Qg4 Rb5 Re1 Rb7 Bb2 Rb1 Bc1 Rb2 Ra8 Rb3 Ra5 Rb5 Bb2 c1Q Rh1 Qd1 Bc1 Rb7 Rc5 Rb5 Qh6 c2 Nc3 Qe2 Qd2 Qd3 Bb2 c1B Re1 Qf5 Re5 Qc2 Rg5 Rb7 Bb5 Ka5 Bc6+ R3b5 Qe3 Kb4 Qe1 Bd2 Bc1 Be3 Qd2 Bf4+ Qg3 Be5 Qgf4 Bf6 Qg4 Qde4 Ne2+ Bc3 Qh3 Qg4 Ng7 Bf5 Ne6 Qc4 Qh4 Bh3 Qg4 Ka5 Rb3 Qcb4 Ra3 Bb2 Re3 Qbc3 Rd3 Qcb4 Nc3 Qd4 Qe3 Kb4 Qf2 Ne4 Qd2 Nd6 Na2#
1bq2rN1/3bN2Q/nbR3pp/3Pn1R1/K1p4n/4rk2/1B1B1R2/RB3qQr b - - 0 1 illegal: No proof kernel
N1k5/4n1QR/nrN1qPR1/1q1rbb2/1q1r1Np1/N2p4/n4pBB/3R2QK b - - 0 1 illegal: No proof kernel
8/1qNr2n1/q3bP2/R2p1pRQ/KRp1b3/B3RB2/n2nNq2/b1rQQk2 b - - 0 1 illegal: No possible last move
N1B1KQ2/RqBR1B2/B4prr/3n1b2/p1P5/5nbN/1q2bnp1/4RrQk b - - 0 1 illegal: No possible last move
b5N1/N2rr1Bn/3Qp1B1/1pQpR1qb/1b3r1n/1K1k1Q2/1P3R1R/Q5qq b - - 0 1 illegal: No possible last move
3q1NQ1/k1Qq1B1r/3P3r/b2n1RN1/1p2R1p1/1b1qbpK1/1R3Bn1/2r3NN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 c5 e4 Kc7 d4 Kb6 h4 g5 e5 f5 e6 b3 d6 g3+ Kf3 b2 d7 c4 a5+ Ka7 d5 b5 e7 c3 e8R c2 a6 g2 h5 Rh6 Ra2 Ne7 Bc4 Nbc6 Nc3 b1Q Ne4 Na5 Rb2 g4+ Kf2 b4 d6 f3 Kg3 f2 Bf7 f1Q Nf2 Nd5 Re4 Nc4 Rh3 Qe2 Nh1 Be7 Qf1 Rh7 h6 Nce3 Rh5 Qb5 Qc4 Qb7 Bd2 c1R Qc7 Qd3 Be1 Bf6 Bf2 f4+ Kh2 f3 Kg3 Bd4 Rhe5 Bb6 Rf5 Qg5 d8N Ba5 Ne6 Qd8 Nf8 Be6 Qc2 Qbd7 Qc3 Rg7 h7 Rb8 h8N Rh7 Qc7+ Rb7 Bg6 Bg8 Nf7 Rh6 Ng5 Be6 N1h3 Bg8 Bf7 g1B Rd4 Ng2 Re4+ Ka8 Bc5 Be3 a7 Bd2 Bf2 Be3 Qc3 Rc7 Ng1 Kb7 a8Q+ Kb6 Qc8 Ka7 Be6 Nf6 Ba2 Bb3 Qc4 Rb7 Qg8 Nd5 Qc7 Qf7 Re8 Ndf4 Rb1 Bc2 Qc8 Rd7 Be6 Bb3 Rb2 Nd5 Re7 Qfe8 Qc3 Rb7 Qc2 Qeb5 Re8 Rbh7 Bf7 Qa4 Re4 Qad7 Qc7+
Q2B1r2/1RN1B1R1/1n1p3b/BNpQr3/1r1qQ3/q1kP3q/2n1K1p1/1b3Qb1 b - - 0 1 legal: proof: e4 b5 g4 f5 exf5 h5 c4 hxg4 b4 a6 Bg2 Nf6 Bc6 bxc4 b5 Ng8 b6 Bb7 Ba4 Bc8 Bb5 axb5 h4 Kf7 a4 Kf6 f4 c5 b7 g5 a5 e5 h5 e4 h6 b4 a6 b3 h7 c3 a7 c2 Kf1 b2 Ne2 e3 Rg1 g3 Nd4 g2+ Ke2 g4 Ne6 g3 Nc3 b1R Nb5 Rb4 Nec7 Ne7 Rb1 Na6 b8Q Bh6 Qb7 Rf8 Qe4 Nd5 d3 Nb6 Bd2 c1Q Qb3 Qa3 Qbd5 d6 Rb3 Qd7 h8B+ Qg7 Rb2 Be6 Rbb1 Rad8 a8Q Rde8 Na7 Bg8 Rb2 Re5 Be1 Rd4 Ba5 Nb4 Rbb1 Nc2 Rb3 Rb4 Rb2 Ke7 f6+ Kd7 f5 Be6 Rc1 g1B f7 g2 f6 Qg3 Rf1 Qh3 Rf3 Rc4 Rg3 Rb4 Qa2 Bc4 Rg7 Bb3 Qad5 Bc4 Qa1 Ba2 Qf1 Bb1 Rg8 Rd8 f8Q Rc8 f7 Rb8 Qg7 Rf8 Qgh7 Ke7 Rg3 Kd7 Qg8 Ke7 Bf6+ Kd7 Kf3 e2 Bd8 e1Q Qh8 Qec3 Ke2 Qd4 Rg7 Bf4 Qh5 Bh6 Qa8 Rc4 Rb5 Rb4 Qhf3 Nc4 Rb7 Nb6 Ne8+ Ke6 Qh5 Rg8 f8B Rh8 Bfe7 Rf8 Qg5 Qdb2 Qg3 Rf6 Qee3 Kd5 Qgf4 Rf8 Q4f3+ Ree4 Nc7+ Ke5 Kd1 Qbc3 Qef4+ Kd4 Qf7 Qc4 Qd5+ Kc3 Qf4 Re5 Qfe4 Qd4 Ke2 Ref5 Rg4 Rh5 Rg7 Re5 Nab5+
1kQB3R/N5b1/1nprn1BN/1q1R2bQ/1bPR1rpQ/q3r3/pq6/2Q3K1 b - - 0 1 legal: proof: g4 b5 e4 g5 a4 bxa4 h4 d5 h5 dxe4 Rh3 Bf5 Rh1 Bg6 hxg6 f5 Qe2 fxg4 Qf3 Nh6 Qd1 Ng8 b4 Kd7 d4 Kc8 f4 h5 Kf2 a5 c4 e5 d5 a3 f5 h4 b5 e3+ Kg2 a4 f6 c6 b6 a2 f7 e2 d6 e1B g7 e4 Bd3 e3 Bc2 g3 Bd3 a3 Bf1 h3+ Kf3 g4+ Ke2 h2 Nf3 g2 Nd4 g1B Nc3 Nf6 g8Q Bg7 f8Q Ne4 Qff7 Rh6 Qh7 Nc5 Qh5 Ne6 Nf5 Qg5 Nb5 Nd7 b7+ Kb8 Na7 Nb6 d7 Bb4 Qh4 Rf6 Nh6 Qb5 Bb2 Rf8 Qc1 Rf4 Bf6 Bf2 Rb1 a1Q Bd8 a2 Rb2 Bg1 Rd2 Qb2 Qh5 Qa3 Rd4 Bf2 Bg2 Bh4 Be4 Bg5 Rhd1 h1Q Bg6 Qe4 Rd5 Qb1 R1d4 Bc5 Ke1 e2 Qh8 Q1b2 Qh4 Re4 Kf2 Rf4+ Kg1 Bcf8 Ng8 Bb4 Q8h5 Qbb3 Nh6 e1R+ Kg2 Re3 Kg1 Qba5 Be7 Qb5 d8R+ Kc7 Bf6 Qbb2 Rh8 Rd8 Be7 Rd6 b8Q+ Kd7 Qf8 Kc7 Bd8+ Kb8 Qe8 Rh3 Qd7 Re3 Qc8+
1NNNn1Q1/K3B2q/bpr3Q1/Bb6/2RBB3/1qp1rkpr/1Pb4n/2R4n b - - 0 1 illegal: No extended proof kernel
RQ2Q1Nq/1BN2b2/1pn3qq/3b3B/Kp1B1Brr/2R1bp2/3n1P2/k3N2n b - - 0 1 legal: proof: d4 a5 c4 e5 h4 g5 b3 gxh4 b4 d5 cxd5 axb4 Ba3 exd4 Bb2 Bf5 Bc1 Bc8 Kd2 Ke7 Kc2 Kd6 Kb3 Ke5 g4 c5 a4 h5 e4 f5 a5 h3 g5 b6 d6 h4 g6 d3 a6 Kd4 a7 h2 g7 d2 d7 c4+ Ka4 c3 e5 f4 e6 h3 e7 c2 e8Q Bc5 Ba6 Nf6 g8B Nc6 Qdh5 d1Q Qhe2 Rh4 Bb3 Ne4 Bf7 Qd3 Bb7 Nd2 Bh5 Qg6 Q2e5+ Kc4 Nf3 Be3 Rf1 h1B Qb8 h2 Ne1 Bd5 Nc3 h1N Ne4 f3 Nf6 Kc3 Ng8 Qdf6 d8B Qh8 Bc7 Bce6 Bf4 Bf7 Ba3 c1Q Bb2+ Kc4 Bd4 Rg4 Bc5 Kc3 Rg1 Kb2 Bd4+ Qc3 Ra3 Qhh6 Rb3+ Ka1 Rg3 Qb2 Rc3 Rh4 Rg5 Be4 Ra5 Bed5 Qbd8 Rc8 a8N Rc7 Ra7 Re7 Qb8 Re4 Nc7 Rg4 Ra8 Rh4 Bg5 Reg4 Rc4 Qc3 Bf4 Qb2 Bh8 Qbg7 Rc3 Q7h7 Bg7 Qh8 Bd4
3bRnn1/N2B3p/K4Q1q/1PN1R1pQ/2b1bqqQ/2p5/kBrB4/2n1Br2 b - - 0 1 illegal: No proof kernel
r2N1RkB/2qnK2p/1pQ4q/1b3B2/1RrpQ3/2n1bQ2/1PBN1b2/r1n2Q2 b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qxa5+ Ke2 Qa6+ Ke1 Qa2 Kd2 Kf7 Kd3 d5 c4 e5 f4 a5 g4 h3 g5 a4 f6 b6 c5 a3 c6 h2 f5 Bh6 g6+ Kf8 f7 Nd7 g7+ Ke7 f6+ Ke6 f8Q Bg5 c7 Bf4 f7 Be3 Ne2 Nh6 g8B Nf5 Qe1 Ng3 Nd2 Bb7 c8Q Ba6+ Qc4 Bb5 Nf4+ Kf6 Rb1 Ne2 Bh3 Qa1 Qb4 Kg7 Qf1 a2 Bf5 Rc8 Qd6 Ra8 Qc6 e4+ Kc2 d3+ Kb3 Rc8 Rg1+ Kf8 Rg4 h1Q Kb4 Qh6 Ne6+ Ke7 Nd8 Kf8 Nf3 Ra8 Bd2 Nc1 Bc3 d2 Bf6 d1N Nd2 Nc3 Qf3 N1e2 Rf1 Qc1 Qd4 a1R Qe5 Bg1 Rh4 e3 Qee4 Qc2 Rf2 Nc1 Be5 Bf1 Rf4 e2 Rg4 N3a2+ Kb5 e1B+ Qcc4 Qd3 Qh3 d4 Be6 Ra4 Kc6 Qa3 Nb7 Ne2 Rg3 Qg5 Rb3 Ra8 Rb4 Nec1 Kd6 Bd3 Qf1 Qh6 Rf6 Kg7 Ke7 Qa7 Qc5 Bb5 Rf5+ Kg6 f8Q Nc3 Bb3 Qb8 Bc2 Be3 Be6 B1f2 Qcc4 Rg8 Bh8 Qa7 Qc7 Rc8 Qd6 Rc4 Qc5 Qb8 Qcc6 Qc7 Rf3+ Kh5 Qff4 Rb8 Qg3 Rba8 Qgh3+ Kg5 Rf5+ Kg6 Qhf3 Qb8 Nd8 Qc8 Be5 Qc7 Rf6+ Kg7 Bf5 Kg8 Rf7 Rc5 Bh8 Rc4 Rf8+
r2qRB2/2q1R1P1/1N3q2/r1p1rp2/2nBb3/b1K3pk/R1QBQ1nn/3B2N1 b - - 0 1 illegal: No proof kernel
k2R3B/2q2bPn/p2r3Q/4q3/1RppQq1B/1b3N1K/Bn2QQ2/brNr4 b - - 0 1 illegal: No possible last move
2b3qk/3q1Rp1/4Bbn1/1rn1Q3/qQ1r1pPR/1n1NRN2/N4pBr/1K4R1 b - - 0 1 illegal: No possible last move, all moves rejected
2N1b3/1KR3p1/1n1Bn3/r1BR2np/pQ1q1b2/NN2r1R1/2q2R1P/k1b2Qq1 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 e5 g5 e4 g6 fxg6 e3 g5 Bc4 g4 Bd3 exd3 Kd2 Kf7 b4 Kf6 c4 Ke5 b6 h5 b5 a5 e4 d5 b7 a4 c5 g3 b6 g2 c6 Nh6 c7 Bd6 Ra3 Nf5 Qf1 Nd7 b8Q Ra5 b7 Nb6 f3 Bd7 c8N Re8 f4+ Ke6 Nf3 g1B e5 Be3+ Kd1 d2 Ke2 d1N Kd3 Qg5 Nfd2 Qg1 Rb3 Bc6 Ba3 Nc3 Bc5 Ne4 Na3 Ng5 Rc3 Re7 Rc1 Be8 Rc3 Qg2 Rg1 Qh1 Rg3 Qg1 Qa7 Bc7 b8B Bd6 Qb7 Bc7 Kc2 d3+ Kb2 Nd4 f5+ Kd7 f6 Nde6 f7 d4 f8R Bf4 Qa6 Kc6 Qb5+ Kd5 Qb4 Bd8 Bbd6 Bc7 Nb3 d2 Ka2 d1Q Nd2 Be3 Rf2 d3 Rc4 Qe2 Kb2 Qg4 Kc3 Qe4 Qb3 Qd4+ Kb4 Rf7 Qc3 Rf3 Qb2 Bf4 Qbb1 Re3 Qb2 Nf8 e6 Bb8 e7 Nfe6 Ndb1 d2 Qc3 d1Q Nd2 Bc6 e8R Qc2 Rd8 Be8 Rd7 Ra8 Kb5 Ba7 Ka6 Bb8+ Kb7 Ra5 Qca1 Ba7 Ndb1 Ke4 Qe1 Kd3 Nd2 Bb8 Rc7 Ba7 Qad1 Bb8 Rb4 Kc3 Rb5 Ba7 Qf1 Bb8 Qg4 Ba7 Bb4+ Kb2 Rd5 Bb8 Bbc5 Ka2 Qb5 Ka1 Qf1+ Re1 Ne4 Bc1 Nd2 Re3 Qh4 Qdc3 Qhc4 Qd4 Qb4 Ka2 Be5 Re1 Re7 Ka1 Bf4 Bd6 Rc7 Re3 Be5 Be7 Bf4 Bf6 Bfd6 Be5 Qe1 Bf4 Qd1 Ra8 Qf1 Ra5 Nb3+
Bq6/2BR1bp1/QBk1PRN1/3R4/n1rb1p2/1rpn4/2b2N1K/1qQ1q1nB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 f5 h4 b5 a4 c5 e4 g3 d4 c4 e5 c3 a5 b3 h5 b4 d6 b2 d5 b3 a6 Qe8 h6 Qg6 a7 Na6 h7 Ne7 Nd2 b1B Ne2 b2 Rh6 Qe8 Ne4 Bc2 Be3 b1Q Bb6 Ng6 Ra5 Nc5 Nf2 Rb8 Qc1 f3+ Kh1 g2+ Kh2 g1N Bg2 Bb7 Nf4 Na4 Bh1 Ba8 Bc7 Rb3 Bb6 Rg8 h8Q Qb8 Rb5 Be7 Qh7 Bf6 Qh8 Nh4 Ng6 f4 Bc7 Bc6 Rc5 Ng2 e6+ Kc8 d7+ Kb7 d8B Be8 d6 Bf7 d7 Ne1 Ra5 Nd3 Rd5 Kc6 Bb6 Re8 Bdc7 Bd4 d8R Rg8 R8d7 Rc8 Nh3 f2 Qh7 f1Q Nf2 Re8 Qh8 Re7 Qc8 Qe1 Qa6 Re8 Nh4 Rh8 Rg6 Rh5 Rf6 Re5 Ng6 Re4 Bg2 Bc5 Bf3 Rc4 Bh1 Bd4 a8B+
R5N1/rQb1QP2/rrn1QKQB/2N1p3/2Bp1bR1/2q4b/n1kN1pq1/7n b - - 0 1 illegal: No proof kernel
7q/1RR1nP1B/K2Np2q/2QQ2b1/b1n5/R2N1N2/1Rpq1p1B/rnr1b2k b - - 0 1 illegal: No proof kernel
B1b1K1N1/k3P1Rp/4pq1R/1n1R4/1b1p2QB/1r1Rn1Qq/4b3/1r1q1BNn b - - 0 1 illegal: No proof kernel
5K2/3P1Rp1/3p3r/R1b2QBB/1Bp1nrNq/1n3Q1r/2k1BNn1/3bq1bN b - - 0 1 illegal: No proof kernel
1q3B1K/2PB4/3Q3N/1p2n1kn/1Q1N2rb/bB2qR2/p1qNrpR1/2B1rb2 b - - 0 1 illegal: No proof kernel
bQ5R/qBp5/1pnRP1R1/R2rq3/2N3QN/1k1pqb1K/3n1b1B/1r2Bn2 b - - 0 1 illegal: No proof kernel
4q1B1/prb2NQQ/k3b2p/QR2rb2/1K1nR1P1/3pq1r1/R1qQ1Bn1/4N3 b - - 0 1 illegal: No possible last move, all moves rejected
1kR3BK/8/1b2n3/P2q1bBp/1b1nQp2/2QBnQ2/1nR2Q1p/rrN3nN b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 f5 a4 c5 d4 Kc7 e4 b5 g4 h5 e5 h3 e6 b3 g5 c4 e7 b2 e8Q h2 g6 c3 g7 c2 Qd2 b4 Qf2 b3 Ra2 Ne7 g8B Nbc6 d6+ Kb8 d5 Ng6 d7 Bb4 d6 Nf8 Ne2 Ne6 Nbc3 b1N Ng3 b2 Bd3 Na3 Nce2 b1N Qf7 Qa5 d8Q Nc3 d7 Nc4 Qde8 Nb2 d8Q Ra7 Bd2 c1B Qdd4 Qd5+ Qe4 Rh7 Re1 Rg7 Nh1 Rg1 a5 Rb7 Qg7 Rf1 Qef8 Ncd4+ Kg2 f3+ Kh3 Rb5 Bg5 Be3 Nc1 Nce2 Kh4 Ng1 Re2 Rb7 Rc2 Rb6 Ra3 f4 Rac3 Re1 Qc5 Bd7 Qg3 f2 Qgf3 Rb7 Qb6 f1N Rc6 Nb3 Qc3 Bec5 Rc7 Nbd4 Rc6 Ne3 Rc7 Ka8 Rc8+ Rb8 Qc6+ Ka7 Qf2 Bb6 Qef3 Qf5 Qce4 Qd5 Ne2 Ra1 Nc1 Ka8 Qh7 Ng7 Ne2 Na4 Be7 Ba7 Q3g2 Ba3 Qhe4 Bf5 Kg5 Nge6+ Kf6 B7c5 Qff3 Ka7 Qgf1 Rbb1 Q1f2 Bab4 Nc1 Bb6 Kf7 Nb2 Bg5 Nf8+ Kg7 Nfe6+ Kh8 Kb7 Rc4 Kb8 Rc8+
N2QN1n1/r5b1/1p1RRRkb/2p2r2/P7/1KB1n3/QnQqnp1n/4QB1b b - - 0 1 illegal: No possible last move, all moves rejected
K1b2R1q/1B3Q1P/nN5r/1bp3Np/1r3p2/B2Q2b1/QQ2bbrk/n1R3R1 b - - 0 1 illegal: No proof kernel
4Qr1R/1b2N1p1/np1k4/2b3n1/2rB1p2/BQR2bN1/1Rr2PBq/1K1R1bb1 b - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 d4 h5 g4 hxg4 b6 cxb6 Nf3 e5 Ng1 exd4 Kd2 Ke7 e4 d5 h4 a5 c4 f5 Kc2 f4 c5 g3 e5 g2 e6 d3+ Kb2 d4 c6 d2 h5 a4 c7 d3 h6 a3+ Ka2 Ra4 h7 Kd6 e7 Rc4 e8R Nf6 Re2 Na6 b8B Bb7 Rh3 Ne4 Qb3 d1B Nc3 d2 Kb1 Qh4 Nd5 Ng5 Rc3 Qh2 Ne7 Rg8 h8R a2+ Kb2 Bc2 Rb1 a1R c8Q+ Nc7 Qe8 d1B Be3 Bd3 Bd4 Ra2+ Kc1 Rb2 Rd2 Bdf3 Ne2 g1B Ng3 Bde2 Bg2 Bf1 Rd1 Rd2 Rb2 Re2 Kb1 Rc2 Ba7 Na6 Bb8+ Ke6 Nc6+ Be7 Bc7 Rf8 Bd6 Kd5 Ba3 Bc5 Ne7+ Ke6 Qf7+ Kd6 Qe8
N2r1Q1b/b4p1P/4n2K/RB1q1pR1/b2n1rbp/bNr1R1B1/3Q1R1Q/3k4 b - - 0 1 illegal: No proof kernel
3b2bn/1RQP1nBr/K3k1nq/Qp1N2pB/2R4Q/p4r2/1r1N1Q1B/4rr2 b - - 0 1 illegal: No proof kernel
1Q1Q1Q1n/3pQN2/n3R2n/k1nrR3/r6n/pp5P/q1BRNbb1/B2Kb3 b - - 0 1 illegal: No proof kernel
b2Q3b/1PBp1Rp1/6K1/q1Rpr1R1/BQr5/k3N2r/1N4Rn/bn2Q1bb b - - 0 1 illegal: Other
2r1b1bQ/1B5R/1B2r2b/N3Bn2/nQ1BQp1R/1qP2nnN/2p1kpK1/3r4 b - - 0 1 illegal: No proof kernel
q2b1r2/1rQN3K/n2n1B1N/3PpB1N/1Qp1Np2/2Bb2r1/1r2Rb1n/2k1R3 b - - 0 1 illegal: No possible last move, all moves rejected
2bKb2B/3nQQ2/bN6/pkq5/1NrbrR2/1RrnB3/1Bp1pP1n/4RB2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 h5 Kf4 a5 Kg5 e5+ Kf5 c5 b4 e3 g4 h3 d4 h4 d5 e4 b6 h2 b7 e2 d6 Kc6+ d7 e1N Ke6 e3 g5 h3 g6 c3 g7 c2 Nf3 e2 Ra4 c4 Be3 c1R Na3 c3 Nc2 Qc7 Nd2 Nd3 Nc4 Nh6 g8Q Kb5 Qf7 Qc5 Nb6 Bg7 Rg1 h1B Qe7 Nc6 b8B h2 Be5 Ng4 Bf6 Ba6 d8B Re8 Kd7 Rc8 Bc7 Bg2 Bce5 h1B Qd2 Bh3 B5d4 Bf8 Bh8 Bg7 Qf7 Re4 Be5 Nf4 Qd6 Nd3 Qde7 Rc7+ Ke8 Nb8 Kd8 Nh2 Bf6 Bhc8 Be5 Nd7 Bf6 Kc6 b5+ Kb7 Nb4 Ka7 Bfg5 Bd4 Bh6 Rc2 Bc1 Bf3 Bb2 Bh5 Be3 Rc6 Ra1 Rc7 Re1 Rc1 Rg4 Bg6 Qg8 Be8 Rf4 Kb7 Qgf7 Ka7 Na4 Kb7 b6 Rc2 Nd5 Kc6 b7 Kb5 b8R+ Qb6 Rb7 Rc4+ Rc7 Qc5 Nb4 Rd2 Rc6 c2 Nb6 Rd1 Rg6 Ra1 Rgg4 Ra3 Rg3 Rac3 Qef6 Rb3 Bd2 Nc1 Q6e7 Ra3 Rc3 Nd3 Be3 Rb3 N4d5 Rbb4 Ra3 Rb3 Nb4 Rbc3 Rb3
N2qR3/RB2N1r1/1bQ3rp/3Q2rr/k1K1R2B/3R1Pbn/pp3n2/nbB5 b - - 0 1 illegal: No possible last move
2b4n/R1K1Q1Rn/6P1/Q2rrnBp/Q1N2b1b/1qbp1rk1/1QN3p1/2B4B b - - 0 1 illegal: No proof kernel
B2bQN2/k4K2/Q4p2/R7/1bRB3p/r1rR1Nrb/N1PR2pn/2n1nq1r b - - 0 1 illegal: No possible last move
3Kb2b/rQ2NbR1/2BQP3/2Q1n1np/nB3N2/1prB1qp1/6r1/Bk3nR1 b - - 0 1 illegal: No proof kernel
K2QQ1N1/5R1N/n2p2R1/P1bNp3/1NR1B3/8/qBbbpr2/rnkn1nr1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Ke2 Kf7 f4 Ke6 c4 Kf5 h4 b5 a4 e5 c5 g5 h6 e3 Kd3 e2 h5 g4 a5 b3 c6 b2 h7 g3 c7 g2 h6 b4 Kc4 Ke4 Kb5 b3 Kb6 d3 f5 d2 f6 Kd3 f7 Be7 f8N Bd6 Nh3 Ne7 Nc3 b1N Na2 b2 Rg1 Rg8 h8N Bb4 h7 Nf5 Nhg6 Ne3 h8Q Na6 Ne7 d6 Qa4 d1N Qe8 Kc2 Nh7 Rg6 Ng8 Bf5 Kb7 Bd2 Nf4 Qh4 Nd5 Qc4 c8R Rg3 Rh1 g1B Bg2 Nf1 Rh6 Bc5 Rg6 Be4 Bf3 Rg1 Qf6 Bf5 Qfd8 Bd3 Be4 Qa4 Nac3 Qa2 Rc7 Rc8 Rf7 Rc7+ Ka8 Re7 Rf4 Rf7 Rh4 Rf2 Nb4+ Kb3 Ncd5 Bc2 Qdd7 Na3 Qdd8 b1R Bb2 Rc1 Rf4 Nb1 Bd4 Ka3 Rf7 Kb3 Be3 Kb2 Bg5 Qc4 Ra4 Qa2 Bh6 Nbc3 Be3 Ra1 Bd4 Kc1 Ra3 Nb5 Rc3 Na3 Rc4 Nb1 Bb2+
3b1r1Q/N2N4/rp3r2/knQ3pK/B1QB3R/3b1Rpn/r1P4n/Q4qbB b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 f4 g5 h4 d5 a4 Kd7 h5 Kc6 h6 Kb6 f6 b3 h7 e4 f5 d3+ Ke3 d4+ Kf2 e3+ Kg3 d2 f7 d3 f6 b2 Nc3 b1R Rh4 e2 Na2 e1B+ Kh2 Be7 f8Q Rb2 f7 Nh6 Nf3 Bf2 Qg8 Nc6 f8Q Nd4 Nc3 Bf5 Ne5 Bg1+ Kg3 Ra2 a5+ Ka6 Qe1 d1R Nb5 b6 Bb2 Bg6 Qf5 Qf8 Nd7 Bd8 Qc5 Rd2 Bg2 Rf2 Bh1 Qf5 Qf7 Rf8 h8Q Rf1 Qfc4 Qf4+ Kg2 g3 Kh3 Ng4 Qec3 Rf2 Rf1 Nh2 Qe1 Rf3 Qa1 Qc1 Bc3 R3f6 Rf3 d2 Bb2 d1N Bc3 Nf1 Kg4 Bd3 Kh5 Nf2 Bb2 Nh3 Bc3 Ne6 Bd4 Nc7 Qe7 Nh2 Qec5 Kb7 a6+ Kc8 a7 Kb7 Qh6 Ka6 Qg7 Qf1 Qh8 Rb8 a8B Ka5 Bb7 Ra8 Bc6 Ra6 Na7+ Nb5 Qe7 Nc7 Ba4 Nb5 Qec5
2n1N3/B2R1B1r/1pBNnR1q/1KbpnQ2/pQ1b2r1/5b1r/2PN1N2/2k1b3 b - - 0 1 illegal: No proof kernel
2Nn2B1/2bNKQ1R/p2N2BB/1q2p3/r1pQR3/5k1P/br3r1n/2nn1Bb1 b - - 0 1 illegal: No proof kernel
rr5b/3pb1P1/b1rN2R1/nQRQ4/KB4q1/2p5/Qk4p1/r1NBnnQN b - - 0 1 illegal: No possible last move, all moves rejected
KQb2n2/Brp3R1/2B2N1b/1Rp1p1q1/nPr3R1/b4n2/R3NQ1b/4kBr1 b - - 0 1 legal: proof: e4 b5 c4 g5 a4 f5 axb5 fxe4 h4 gxh4 c5 d6 Ra5 dxc5 Ra2 Nd7 Ra1 Nb8 Ke2 Kf7 Ke3 Kg6 g4 Kg5 d4 h5 b6 a5 b7 a4 b3 a3 d5 a2 d6 h3 f4+ Kh4 f5 Kg3 f6 h2 d7 h4 g5 h3 f7 Ra7 g6 e5 g7 Nc6 b8R Nf6 g8B Nh7 Qe2 Nd4 Bd2 Nf3 Ba5 Bg7 f8R Qe7 Rf6 Nf8 b4 Rh4 Bd5 Bh6+ Rf4 Qg7 Qc2 Rg4 Ke2 e3 Kd3 e2 Ke4 Kf2 Nd2 e1B Bb6 Qf6 Ba8 Qh4 Kd5 Qg3 Rf5 Rc4 Kc6 Qg8 Rf7 Qg5 Nb1+ Bd2 Rg7 Ke1 Bb7 Bf4 Qf2+ Kd1 Ne2 Bg3 Rg1 h1N Ba8 h2 Rg2 Bf4 Rg4 Ng3 Rb7 h1R Nbc3+ Kd2 Nd5 Ne4 Rb8 Nc3 Nf6 Bh2 Bb7 Na4 Ba8 Ra5 Ba7 Rg1 Rb7 Rb5 d8Q+ Bd7+ Kd5 Bf5 Qb8 Be6+ Kc6 Bc8 Rc1 a1B Rc2+ Kd1 Ra2 Bb2 Rb6 Bf5 Kb7 Ba3 Ka6 Be6 Bc6 Bd7 Kb7 Be6 Ka8 Bc8 Ra6 Rb6 Ra5 Rb7 Qd4+ Ke1 Rb5 Qh4 Qe3 Qg5 Qf2+
3NB1rr/1p3b2/q2b1p1B/1n3b2/4B1RR/2Q2n2/BrpP2Qb/k1N1n1RK b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 e4 Ke6 g4 h5 Kg2 c5 a4 c3 g6 c4 g5 c2 e5 Kd5 g7 b3 g6 f6 a5 c3 e6 f3+ Kh2 f2 a6 h4 e7 b2 e8B h3 a7 Nc6 Qe1 Bf5 Bd7 Qb6 Be8 Ne5 Bfb5 f1B Ra6 Ne7 g8R Bc4 g7 N7c6 Qe2 Nd4 Ra4 Qa6 Na3 b1R Bbc6+ Kc5 Nb5 Bd6 Bb2 c1B Nc7 c2 Qg2 Nb5 Be4 Bf7 Ba3+ Rb4 Ne6+ Kc4 Ne2 Kb3 Kg1 Ka2 Nd8 Bb2 Nc1+ Ka1 Rh2 Bd4+ Kh1 Rb2 Rb4 Rc8 a8Q Nf3 Qa7 Ra8 Qc5 B4e5 Qc3 Bf4 Rc4 Bfe5 Bc5 Rc8 Be3 Rb8 Qe2 Bf4 Rg2 h2 Rg1 Bfe5 Bh6 Rc8 Kg2 h1N Qf1 Nf2 Qe2 Ng4 Kh1 Ne1 Qg2 Bh2 Rd4 Ne5 Rb4 Rh7 Rh8 N5f3 g8B Bh5 Ba2 Bf7 Rg8 Rh8 Rg4 Rc4 Bd5 Rf4 Rh4 Rg4 Bdc6 Rg6 Rbg4 Rgg8 Be4
R5B1/1p5p/1p1bbrn1/P2b1QB1/krnrB1bq/1RNR1R1N/2Q1n3/K7 b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 g5 h4 gxh4 b5 d5 b6 axb6 cxd5 Qd7 Nf3 Qd6 Ng1 Qd8 e4 Kd7 d4 f5 Kd2 c5 Kc3 f3 Kb2 h3 g4 f4 a4 f2 d6 Kc6 d7 h2 e5 c4 e6 f3 g5 Bd6 g6 Qh4 d8Q Ne7 g7 Ng6 g8B Nd7 e7 Nde5 e8R Bg4 Ra3 c3+ Ka1 c2 Bg2 f1R Bg5 c1N Qf6 Nc4 Qf5 Ne2 d5+ Kc5 Rd3 Kb4 Rf8 f2 Qc2 Rd1 Rf7 f1B Be4 Bfh3 a5 Rf8 Rb3+ Ka4 Rd7 Re8 Rd8 Rd4 Ra8 Bc5 d6 Re5 d7 Bd6 d8R Rb5 Nf3 Rb4 Rf1 h1B Ng1 B1g2 Rff3 Bh1 Bf7 Rf8 Bg8 Rf6 Rd7 Bh5 Rdd8 B3g4 Nh3 Bg2 Qd5 Be6 Qf5 Bg4 Rdc8 Na3 Rcc3 Nc4 Rcd3 Rf8 Rf4 Bh1 Bg2 Rf6 Rf2 Bf3 Rf1 Bfd5 Be4 Bf3 Rf2 Bh5 Rff3 Bg4 Nc3+
R2N4/rp1KpNkN/3Pn3/5b1n/1Bp1qrR1/Bb1nb1r1/QNB4Q/7b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 c5 Kf4 h5 Ke5 e3 g4 b3 d4 b2 f4 c4 a4 e2 d6 e1N d7 h3 g5 h2 d5 h4 a5 h3 f5 Nf6 g6+ Kg8 Ke6 Qb6+ d6 Ng2 a6 Qb3 g7 Qb6 a7 Kh7 g8N Qa5 Qh5+ Bh6 Bd3 Qa2 Nf3 Qa6 Bc2 Qc6 Ng5+ Kg7 Nf7 Na6 Nc3 b1B Na4 Ba2 Nb2 Nb4 Rg1 h1R Bd2 Nd3 Bb4 h2 Qh3 Ng4 Nf6 Rf8 Nh7 Nf6 Ba3 Nh5 f6+ Kg8 Qh4 Be3 Qf2 Bb3 Qd2 Rb8 a8Q Qf3 Qa6 Ra8 Bb4 Ra7 Qa2 Bg5 Qf4 Qe4+ Qe5 Nge1 Rg2 Nf3 Rg4 Rg1 Ba3 h1B Bb4 Qd4 Qh2 Rg2 Nh6+ Kh8 f7 Be3 Ba3 Rg3 Bb4 Rg8 f8B Rg5 Ba3 Rf5 Bb4 Rf4 Ba3 Qg7 Nf7+ Kg8 Bb4 Qg5 Bg7 Qg6+ Kd5 Qf5+ Be5+ Qg6 d8N Bd7 Bd4 Bf5 Bdc5 Kg7 Ba3 Nf2 Bcb4 Nd4+ Kc5 Nd3+ Kb6 Bfe4 Kc7 Ne6+ Kd7 Bf5 Re1 Bc1 Re5 Be3 Rc5 Rgf3 Rc8 Rg3 Rh4 Qg4 Rb8 Qf3 Ra8 Qe4 Rg4+
1b1r3q/prnBKpQ1/r6p/R4Q1n/bP1r1B2/1RB2N2/Qb4Nn/2Q3k1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 b4 f3 d4 f2 g4 h6 b6 h3 g5 c3 b7 c2 d5+ Kd6 g6 h2 g7 c4 Bd2 c1B Bc3 Nc6 b8B+ Qc7 Bh3 f1N Na3 Bb2 Nc2 Bd7 Ne3 Nd4 Nf3 Ne6 Kf5 Nf6 g8Q Nh5 Qg7 Ba4 Ng2 Rg8 Rg1 h1R e4 Nh2 Qc1 Be7 Bg4 Rd8 Nfe1 Bg5 Rf1 Bf4 Rf3 Rf1 Rh3 Rf3 Ra2 Rd3 Rf3 Rd4 e5+ Ke7 Re3 Qc8 d6+ Kd7 Rd3 Kc6 d7 Nc7 e6 Kd5 e7 Bg3 e8Q Be5 Bd2 c3 Qeg8 c2 Q8h7 Bg3 Rb3 Be5 Bc3 Bf4 Qe3 c1R Ra1 Rc2 Qc1 Re2 Qhg6 Re6 Bh3 Ra6 Qg4 Bb5 Ra5 Bd6 Qe4+ Kc4 Qeb1 Ba4 Qa2 Bg3 Nf3 Kd3 Nfe1+ Ke2 Bg4+ Kf2 Bh3 Ne8 Bf4 Nc7 Ke5 Rg8 d8Q Rb8 Qd5 Rb7 Bd7 Rd8 Qe6 Kg1 Qd5 Bc6 Kd6 Ba4+ Ke7 Na8 Bg5 Bb8 Bf4 Nc7 Qf5 Rd2 Bb5 R8d4 Bd7 Qh8 Bc8 Rd8 Bd7 Rd4 Nf3+
3r2RN/pQp3KR/n6n/b3nr2/2B1b3/P1B1Nqp1/1Q3r1k/NbN2Bn1 b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 gxh5 b5 d3 bxc4 Qc2 cxd3 Qb3 Qf6 Qd1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 b4 g5 h4 f3 e4 f2 a3 d2 b5 Bb4 b6 Ba5 h6 d5+ Kh5 Kf4 b7 Kg3 h7 f5 Kg6 d4 h5 g4 e5 f4 e6 d3 h6 f3 e7 Na6 e8B Bf5+ Kg7 Be4 b8N Qd5 Qa4 d1N Qb5 d2 Qb7 Nb2 Bf7 d1N Nc3 Nc4 Nc6 Rf8 Nb4 Ne5 Nc2 Qd3 Be6 Rf5 Nd5 Nc3 Bb2 Ne2 Nde3 Qc3 Bc4 Qb3 Bg2 f1B Bc3 f2 Bh3 Bfg2 Rh2 Bh1 Bf1 Bd3 Rb1 Bhe4 Na1 Qd1 Rb6 Bb1 Rg6 Qb3 Nh3 Qd1 Nf4 Ng1 Nd3 Qe2 Nc1 Qf3 Bfe2 f1R Rh4 Rf2 Bf1 Ne7 Rh2 Ra8 h8Q Rd8 h7 Ng8 Rg5 Nh6 Rh4 Rd4 Qhb8 Rd8 h8N Ng8 Rh7 Nh6 Qb2 Kh2 Q8b7 g3 Rg6 Ng4 Rf6 Ne5 Rf8 Bed3 Re8 Be4 Rg8
1RRN1n1k/nQ3b2/K1nQqQB1/Br3p2/3b1R1n/pRP2p2/2qrn3/6N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 Kd3 h5 Kc4 d5+ Kb3 h3 Ka4 h4 g4 f3 b4 d3 e4 h2 g5 d4 g6 d2 b6 h3 Kb5 d3 b7 a4 e5 a3 g7 Be6 Ne2 Qf6 Kb6 Ne7 g8R Rh5 b5 Nec6 Rg4 Bg7 Nf4 Kf8 Nc3 Kg8 Nce2 Kh8 Rb1 Qf5 Rhg1 h1N Rb3 h2 R1g2 f6 Ng1 Bf7 e6 Ng3 e7 h1N Ne6 Ne2 Nd8 Qe6 Rf4 Nhg3 Rh2 Nf5 e8Q+ Bf8 Qd7 Nh4 Qd4 Bg7 Bb2 Ra5 Bc3 Rd5 Qa1 Rd7 Qd6 d1Q Bh3 d2 Bf5 Qc1 Bg6 d1N Bd2 f5 Qf6 Ndc3 Rh1 Na6 b8R Nc7 Kb7 Qd1 b6 N3b5 Bb4 Nba7 c3 Rc5 Ba5 Rb5 Rh2 Qc2 Rg2 Nd5+ Ka6 Nde7 b7 Be8 Qde5 Rd2 Qd6 Bf7 Rg5 Nd5 Rc8 Nb6 b8Q Nd7 Qb7 Nf8 Rgg4 Qc4 Rb8 Qe6 Rc4 Ned4 Rf4 Ne2 Qfe7 Bd4 Rc5 Ne5 Rcc8 Nec6 Qf6+
2krBKNn/2N5/1Nn1R3/b1pr4/b4Rp1/2pP1nBq/RQ1nQn2/3N3q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 h4 c5 b4 f5 e4 a5 e5 g5 h5 a4 b6 c3 b7 g3+ Kf3 g2 e6+ Kc7 h6 a3 e7 a2 e8N+ Kd7 b5 Nc6 b8R Qf6 h7 Qe7 b6 Qe6 b7 Nh6 Rh4 Nf7 Qe2 Be7 Nc7 Rd8 Na3 Nh8 Nh3 Qh6 Nc4 g1N+ Kf2 f3 Ke3 f4+ Ke4 f2 Kd5 f3 Rf4 g4 d3 Bh4 Bg2 f1N Nf2 Bg3 Nd1 f2 Bd2 Nf3 Be1 N1d2 Bh1 Ng6 h8N f1N Nf7 Qh3 Nh6 Ne4 Ng8 Nh8 Bg2 Bh4 Bg3 N1d2 Bh1 Ra7 Ra8 Be7 b8Q Nf2 Qb2 Ra4 Rc1 a1Q Ra7 Rb4 Ra2 Ba6 Rc2 Kc8+ Ke6 Bb5 Rc1 Ba4 Nb6+ Kb7 Rb1 Rbd4 Bg2 R4d5 Rc1 Ng6 Kf7 Nh8+ Kg7 Nh2 Be4 Nhf3 Bg6 Qb1 Be8 Bd6 Nb5 Bc7 Kf8 Qa1 Na8 Ba5 Nbc7+ Kc8 Nb6+ Kb8 Ne3 Kb7 Rh1 Qg1 Nd1 Qgh2 Re1 Qh1 Qf1 Kb8 Re6 Kb7 Qe2 Kb8 Nba8+ Kc8 Nb6+
3b3B/q1rBQ1b1/kN2NRp1/1n2n2q/1QR1rp2/2p2P2/4bbR1/K4RQb b - - 0 1 legal: proof: d4 b5 c4 e5 g4 exd4 a4 d5 axb5 dxc4 Qd2 h5 Qd1 hxg4 Kd2 Kd7 Kc2 c5 b4 Kc7 Kb2 Kb7 h4 f5 e4 a5 h5 c3+ Ka2 c2 h6 g3 h7 g2 e5 d3 b6 d2 e6 c4 b5 c3 e7 a4 e8Q g6 Nf3 g1B Bh3 a3 Nd4 Nh6 Ne6 Nd7 Rh2 Qg5 Rg2 Ra4 Qe7 Re4 f3 Bf2 Bg4 Qh5 Qg1 d1B Bf4 c1B Be5 Nf7 Nd2 Nd6 Nc4 Bg5 Bh3 Be2 Rf1 f4 Ka1 Rg8 h8R Bg7 Bd4 Re8 Rf8 Rd8 Rf7 Rf8 Rf6 Rf7 Nc7 Ne5 Ne6+ Bd7 Bg4 Rf8 Bh3 Rc8 Bf5 Rc7 Bg4 Kb8 b7 Bgh4 Nb6 Ka7 b8R Bg5 Rc8 Bgh4 Kb1 a2+ Kc1 a1Q+ Kc2 Qa3 Kb1 Qc5 Ka1 Bg5 Nd5 Bgh4 b6+ Ka6 b7 Qa7 b8Q Bg5 Qb4 Nb5 Nf8+ Be6 Nb6 B6c4 Bd7 Be6 Rg3 Bh3 Ne6 Bg2 Rg4 Bh1 Rg2 Rb7 Rc4 Rc7 Rf7 Nc6 Bf6 Ne5 Rf8 B7h6 Bh8 Bg7 Qed6 Be7 Rf6 Bd8 Qe7
q2R3q/3B1N2/N2pr1Qp/2B2Rb1/KnrpQ3/3BPn1k/b1rr3r/3RR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kf6 Kc2 Kg5 Kb3 Kg4 b6 a5 c5 f5 b7 d6 g3 h3 c6 h2 e3+ f3 c7 h6 Nd2 f4 Rb1 a4+ Kb4 a3 Nb3 a2 Nc5 a1Q Qc2 f2 Qe4 Be7 Nh3 Ra2 Na6 Bg5 Bd3 Be6 c8B f1R Bd7 Rf2 Rd1 h1R b3 Rae2 Ba3 Ne7 Ka4 Nec6 b4 Rc2 b5 Nb4 b6 N8c6 b8R Re8 b7 Rfd2 Re1 Qc8 Rbd1 Rhh2 Ra8 Qa2 b8R Ne5 Rb5 Nf3 Rf5 Bd5 Rb8 Re6 Ra8 Qh8 Rd8 Kh5 g4+ Kh4 Be8 Qa1 Beb5 Ba2 Bd7 Bf6 g5 Rc4 g6 Bg5 Nf2 Kg3 Ng4 Kh3 g7 Rdc2 g8Q Nd2 Rf6 f3 Re8 f2 Nc7 f1R Rd8 Rff2 Qgg6 Nd5+ Ka5 Nf3 Rf5 Bb1 Ne5 Rfd2 Nf7 Qa2 Kb5 Qa1 Bb4 Qa8 Na6 Ba2 Bc5 Nb4 Ka4
bq1n3R/Q2K2b1/2p2N1p/b4BrQ/bn4QP/1B1k1BN1/3pR3/b3qr1Q b - - 0 1 legal: proof: d4 b5 c4 e5 f4 g5 a4 gxf4 Be3 d5 axb5 dxc4 d5 Nf6 Bc5 Ng8 Bd4 exd4 Kd2 Kd7 g4 Kd6 e4 Kc5 b4+ Kd6 b6 Ke5 b5 f5 b7 a5 g5 c6 d6 d3 Kc3 d2 g6 a4 Kb4 Kd4 e5 a3 e6 f3 g7 f4 e7 f2 e8B f3 b6 c3 Be2 f1B Bd7 a2 Bf5 f2 Bf3 c2 Nc3 c1B Ne4 Ra5 Ne2+ Kd3 N2g3 Nh6 g8B Bg7 d7 Bcb2 Bb3 Rf8 h4 Qc7 Rh2 Nf7 d8Q+ Rd5 Rg2 h6 Qe8 Nd8 Qh5 Rf6 Rb1 a1B Qc1 Be2 Qh1 f1Q Re1 Bd1 Ree2 Qe1 Rgf2 Rd4+ Kc5 Bc3 Rf1 Rg6 Nf6+ Re4 Qg4 Rg5 Rg1 Ba5 Qh5 Qf7 Kd6 Na6 b8Q Qa7 b7 Nb4 Qg4 Qa8 Qa7 Bc2 b8Q Bb7 Qc7 Qb8 Kd7 Ba8 Qe5 Bd1 Qe8 Bc2 Qeh5 Bd1 Bd5 Ba4 Bc4+ Kc3 Bb3 Rf4 Bg2 Rf1 Bf3 Qb5 Rgg2 Qb8 Re8 Qe3 Rh8 Qe1 Nfe4+ Kd3 Rf2 Rg1 Re2 Rf1 Nf6+
2NBk1Kb/bn3NPB/3b1b1p/1r1Bn3/1p1RN3/2QN2qp/5r2/QqR4b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 b5 Ke3 e5 a4 c5 f4 b3 g4 h6 d4 c4 a5 h3 f5 c3 a6 b4 d6 b2 d7+ Ke7 f6+ Kf7 g5 c2 d5 Ne7 g6+ Kg8 d6 Bg7 f7+ Kf8 a7 Na6 Nf3 Qe8 d8N Bb7 d7 Bf6 Ne1 Nc5 Nc3 b1Q Nd3 Rb8 a8B Nc6 Qf3 Ke7 f8N Rh7 Bd2 c1B Nf7 Bb2 Bg2 Qd8 Rc1 Qc7 Be1 Rh8 Bh4 Rh7 Ra2 Ba1 Rd2 Bb2 Nd6 Rf7 Ne6 Ba1 Nd8 Kf8 Kf2 e3+ Kg3 e2 Kg4 e1B Kh5 e4 Nc8 e3 Ne4 e2 Qe3 Ne5 Qg3 Rg7 Nf7 Bf2 Qf3 e1B Qe3 Ba6 Bd5 Nb7 Bg5 Bb5 d8Q+ Be8 Qf3 Ba7 Bh1 Qc3 Qa5 Bg3 Qa4 Bb2 Qa1 Bc6 Qe3 Bh2 Qd4 Qa3 Qc3 Ke8 Rdd1 Rg8 Bf3 Bh8 g7 Rf8 Bd8 Bf4 Nef2 Bh2 Bfe4 Qb3 Bh7 Bf4 Be6 Bh1 Bd5 Bg3 Ne4 Qa3 Nfg5 Rf2 Nf7 Bf4 Qc7 Qc3 Qc4 Qe1 Qc3 Qg1 Rd2 Qg3 Rdd1 Ng4 Kg6 Bd6 Nf4 Ne5+ Kf6 Na5 Rd4 Rb5 Ke6 Nb7 Nd3 Rh2 Kf6 Rf2+ Nf4 Rg2 Rc4 Rg1 Qe3 Rg2 Nfg5 Bbd4 Qec3 Ra2 Nd3 Nf3+ Kg6 Bf6 Rd4 Kd7 Kf7 Ne5+ Kg8 Ke8 Nf7 Rb2 Ndc5 Rf2 Nd3
1K1R1k1b/1Br2p2/1q1r3r/3P3n/NR2QBB1/1bR2q1R/r1p1pn1r/1Q4N1 b - - 0 1 illegal: No proof kernel
1q1b2K1/NnN2p1p/2p2rNq/1Q1q1kQ1/nr1B1P2/2R3q1/N4q2/RbB1R3 b - - 0 1 legal: proof: c4 d5 a4 b5 axb5 g5 d4 e6 h4 gxh4 e3 Qg5 Bd3 Qf6 Be4 dxc4 d5 Qe7 d6 Qd8 Bd5 exd5 Kd2 Kd7 Kc3 Ke6 Kd4 a5 b4 a4 f4 h3 g4 h2 d7 a3 b6 c3 b7 a2 g5 c2 g6 Qh4 d8B Qg5 g7 Ne7 g8R Ra5 b5 Ra6 b6 Kf5 Qe1 Qg3 Nf3 Nd7 b8Q Nc5 b7 Na4 Ne5 Rf6 Ng6 Bh6 Rg1 h1Q Nc3 Bg5 Rf1 Qh6 e4+ Kg4 Ke5 d4 Rf3 d3 Re8 Nf5 Be7 d2 Bc5 d1Q Bd4 Be6 Re7 Bc4 Qe8 Bh4 b8N Nd6 Qb5 Bd3 Nc6 Nb7 Na7 c6 Re6 Rb8 Qh1 Nbc5 Kd6 Qe2 Ke7 Nb7 e5 Kf5 Re3 Bg5 Qh4 Qeg2 Re1 Qd5 Rd6 Qf2 e6 Be4 Rd8 Bd3 Ke8 Qg3 e7 Be4 Rb1 a1Q Na2 Qb2 Ra1 Qb4 Re3 Qbe1 Rc3 Qef2 Rc8 Qh5 Kf8 Qh6+ Kg8 Bd3 Bd2 c1Q e8N Qb2 Nc7 Bb1 Rd8 Rd6 Rf8 Bd8 Bc1 Rf6 Re8 Nd6 Qc5 Qb7 Re7 Qa8 Re6 Rb4 Qb5 Qb8 Re1 Nb7 Qg5+
2N2n2/1BnqpQRB/2R1RrP1/8/nb3n2/r6R/p3pq1n/Kbk1BNQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 a5 c4 h5 Kc2 a4 Kb2 d3 b6 a3+ Ka2 d2 f5 Kg5 f6 Kf4 g5 Ke3 b7 h3 b5 h2 c5 d4 c6 h4 f7 h3 b6 d3 c7 Qd7 g6 Bh6 f8R Nf6 Qc2 Nd5 Nf3 Nf4 Re8 Rf8 Be2 Rf6 Re1 h1Q Nh2 Qf3 Nc3 Qf2 Qb3 Bg5 Bb2 d1N Nb5 Kd2 Rg8 e3 Rc1 Nc3+ Ka1 a2 Rg7 Ncd5 Nd6 Ra3 Rc6 Bh4 Bg4 e2 Rh1 Bg5 Be6 Bh6 Bg8 Bg5 Ng4 h2 Bh7 Bh6 Ne3 Bg5 Rg1 h1N Rg3 Bh4 Rf3 Ng3 Bc3+ Kc1 Nf1 d2 Re3 d1N Re6 Bg5 Be1+ N1c3 Qc4 Nd3 Qd4 Bd2 Qg4 N3f4 Qf3 Na6 b8R Nc5 b7 N3a4 Qh1 Bb4 Qg1 Rf5 Ra8 Rf6 b8Q Bb7 c8B Nc7 Ra5 Ba6 Qa7 Bd3 Bb7 Bc2 Nc8 Bb1 Nh2 Nf1 Rb5 Ne3 Nf1 Ng4 Qb8 Nh2 Qa8 Bd2 Rb3 Bb4 Rh3 Qd1 Rb6 Nd7 Qa5 Qd2 Qd5 Nf8 Rec6+ Kd1 Qf7 Qd7 Re6 Kc1 Rbc6+
1rR2QQ1/BQrp2KN/n1R1N3/qk1Bpp1b/q5N1/2qq3b/q2P3n/4Q3 b - - 0 1 illegal: No proof kernel
2RbNQ1q/Pb2Nq2/4n1B1/1p1b3k/1B1r1B1p/Q5pb/bRr4n/KN5N b - - 0 1 illegal: No proof kernel
1B1r1rQ1/p2RbB1N/1nbq2N1/kBpn1P2/2b1K1b1/2bQ3R/5p2/2Q2qB1 b - - 0 1 illegal: No proof kernel
B1b1r3/p1pn4/5B2/b3n1Pq/Qp2K2b/NN1R4/1R1NRbkq/Q3rb1N b - - 0 1 illegal: No proof kernel
3q2qn/Q1b1R1r1/7b/1kB3n1/1bbq1p2/pB1P4/1rp2Q1B/RRKNN1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 c5 h4 g5 h5 a5 h6 f5 b6 Kc6 h7 g3 d3 g2 Kd2 a4 b7 g4 e5 f3 e6 c3+ Kc2 c4 e7 g3 e8R a3 Re4 f2 Qe1 Be6 Be2 f1Q Bb2 Na6 b8Q Nh6 Nd2 Qf2 Qa7 Rg8 h8B Qfd4 Bh5 Nf7 Qc7+ Kb5 Bg4 Nc5 Nf1 Rg7 Nf3 g1B Qf2 g2 Ne3 Bh2 Kc1 g1Q+ Ne1 c2 Bd1 Rb8 Qa7 Bc7 Rb1 Bd5 Re7 Ne6 Ba1 Neg5 Bc3 Qe4 Bd4 Rb7 Bc5 Qd4 Bf3 Rb8 Nd1 Be6 Bd5 Qg2 Kd2 c1B+ Kc2 c3 Bb3 B1f4 Rg1 Bfd6 Kc1 c2 Ra1 Bc4 Rf1 Rg6 Be5 Qgg4 Bh2 Bh6 Bg1 Nh8 Rb1 Rg7 Ra1 Qh5 Rb1 Qf7 Ra1 Kc6 Rb1 Qfg8 b5+ Kd5 b6 Kc6 b7 Kb5 Bb6 Bb4 Bc5 Ra8 b8B f4 Bh2 Bd6 Bc7 Rb8 B7b6 Bc7 Qd2 Qf6 Bcg1 Qfd6 Qf2 Qd4 Bc5 Q8d7 Ra1 Ne4 Ne3 Q7d6 N1g2 Qdd8 Ba2 Kc6 Rd1 Bba5 Ne1 Rb2 Bb3 Nc3 Kd2 Kb5 Rdc1 Bb4 Rcb1 Ne4+ Kc1 Ng5 Nd1
3r2bq/5n2/2n2BQ1/2q1bRq1/1P1rq2Q/2N1NN1K/Np1kp2p/QB2R2n b - - 0 1 illegal: No proof kernel
1r2q3/n2bN2R/r1n3bK/6NN/1P1R2Q1/3kp1Qp/Br2NR1p/1bB3bq b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 d5 c6 e5 b6 h3 b7 e3+ Ke2 Ke4 c7 a4 g4 d3+ Ke1 h2 f5 d2+ Ke2 d4 f6 h4 g5 a3 g6 h3 g7 a2 f7 Nc6 b8Q Bd7 c8N Na7 Qb3 Bc5 f8R Ne7 g8N Nec6 Rf3 Qe8 Qd1 Rh6 Qc7 Rb8 Nce7 Rg6 Rf2 Rg2 Nf3 Bb6 Qc8 Bc5 Qb3 d1B+ Ke1 e2 Kd2 e1R Bc4 d3 Ng5+ Kd4 Qa3 e4 Nf6 Bc2 Nc3 Bb1 Nh5 Re3 Bg8 Rf3 Rf1 Rf6 Rd1 Re6 Ne2+ Kc4 Rf7 Bg1 Rh7 Rf2 Ke3 d2 Rf1 d1B Bf7 Rg2+ Kf4 Bdc2 Qg3 e3 Rf2 Bg6 Bg8 Kd3 Kg4 Bc2 Rb1 a1Q Rb3+ Kc4 Rd3 Bb1 Rd5 Kb3 Rd4 Kc2 Re4 Kd3 Kh4 Re5 Ba2 Ra5 Rc4 Ra6 Rcf4 Qeh8 Qg8 Qhe5 Qe6 Qh8 Qeg4 Qe8 Rd4+ Kc2 Rff7 Nc8 Nef4 Bf2 Nge6 N8a7 Kg5 Kc3 Rf6 Bbd3 Ba3 Qh1 Bc1 Bg1 Kh6 Rb2 Ng5 Bb1 Ne2+ Kc2 Re4 Kd3 Rf2 Qh8 Ref4 Qe8 Rd4+
2bR2N1/1q3kq1/3b2rQ/KB1R3Q/1p3pp1/2BNPb2/nQ1r1B2/bB2n2r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 g5 Kd2 f5 a4 c5 h4 b5 h5 g3 e3 f3 a5 g2 h6 b3 Kc3 c4 h7 f2 d6 b2 Kb4 c3 d5 c2 a6 f4 a7 Nh6 Bd2 c1B Nf3 g1Q Ra5 Be7 Ne1 Qg2 Nd3 Qc7 Qh5+ Nf7 Bc3 g4 Nd2 b1B Ne4 Rg8 h8Q Bb2 Q8h6 Ba1 Rh4 Rg7 Nf6+ Kf8 Rh3 Ng5 Ng8 Nf3 Be2 f1R Rh1 Rf2 Rd1 Ne1 Rd2 Bg5 d7 Be7+ d6 Qgb7 d8B Ba2 Bf1 Bd5 Be2 Bf3 Bf1 Bf6 d7 Be5 Bh4 Rg2 Bf2 Bd6+ Qc5 Kf7 d8Q Rg6 Qf6+ Ke8 Qfh8 Qg7 Rd1 Kf7 Be2 Bc7 Qch5 Rg1 Rd2 Rh1 Rd1 Nd7 Rd2 Nf6 Bf1 Rb8 a8B Ne4 Be2 Qa6 Bc6 Qb7 Ra8 Be5 Ka5 b4 Bb5 Bd6 Bd1 Kf8 Bc2 Kf7 Be5 Nc3 Bb1 Na2 Bc3 Bd7 Rd1 Rf8 Rd8 Bc8 Nc5 Re8 Rd5 Re4 Nd3 Rd4 Nc1 Rd2 Nd3 Qf8 Qd4 Qfe7 Qc4 Qf8 Qb3 Qg7 Qb2
rn3b1B/1B1R3q/1K1bn1R1/2Q3Rn/Qpq1P1n1/N2bp1r1/2R1p2k/2Q3N1 b - - 0 1 illegal: No proof kernel
1nB5/2rq1Q2/2Q2N1B/nb3r1p/q3R2p/2npB1kR/BKN2nP1/N3bq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kf6 b4 Kg5 c4 d5 Kc2 h5 c5 f5 c6 a5 e5 a4 c7 d3+ Kc3 d2 e6 a3 b6 d4+ Kc2 a2 b5 f3 e7 Kg4 e8Q f4 b7 Ne7 b6 Rh7 Qe2 d1N Be3 Kg3 Qf7 f2 Nf3 Nd5 Nfd2 f3 Na3 N5c3 Nb3 Qd7 Qa6 Bb4 Bc4 f1N Bh6 Nf2 Re1 a1Q Re4 Qd1+ Kb2 d3 Nc2 Nd2 Nba1 Nb3 Qa4 Na5 Qc6 Rg7 Ba2 Rg5 Rh2 Rf5 Rh1 Ra7 Be3 Na6 b8N Bb7 c8B Ba8 Qcd5 Bc6 b7 Ba4 Qc6 Bb5 Nd4 Qa4 Ndc2 Nd5 Rh2 Be1 Rh1 Nc3 Rh2 Qc7 Nd7 Nb8 Nf6 Qd7 Rh1 Na6 b8B+ Rc7 Bba7 Nb8 Bc1 Ng4 Bg5 f2 Bae3 f1Q Bh6 Nf2 Rh3+
B3q2R/1kr1qNB1/bn4n1/2b1pQ2/p2p2b1/Q4P1B/r1qR1B1K/3Nb2N b - - 0 1 illegal: No possible last move, all moves rejected
3r4/1qN1K3/QN2Q3/1Pr1q1k1/Bp1p4/2B1rpn1/1q1qN2Q/RbbQ2nR b - - 0 1 illegal: No proof kernel
2rRN2q/1QnnR1b1/3b2k1/p5NN/2KQB1qr/1p4Bp/1qR4P/1N1n2q1 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 c5 Ke1 cxb4 a4 fxg4 Ra2 b5 Rb2 b3 Ra2 b4 Ra3 Ba6 Ra1 Bb5 axb5 Qd3 Bg2 Qd6 Bf1 Qd8 Ke2 Kf7 f4 g5 d4 h5 c4 a5 c5 e5 c6 e3 Kd3 b2 b6 h4 d5 e4+ Kc4 e2 b7 e1N d6 e3 c7 b3 c8N h3 f5 g3 f6 e2 d7 g2 Ra3 g4 Nc3 b1Q Bf4 g3 Qd4 Bg7 Nd6+ Kg6 f7 Nf6 Ne8 Qb2 Nb1 Nd5 Ra2 Nc2 Nf3 e1B Ng5 g1Q Bg2 Nc7 f8R Qc8 d8N Nd7 b8Q Rh4 Qb7 Bb4 Nde6 Bd6 Rf7 Qd8 Re7 Rc8 Bf3 g2 Bg3 Qd1 Rf1 g1Q Be4+ Kh5 Rf5 Qg4 Nf4+ Kh6 Nh5 Kg6 Nef6 Qh8 Ne8 Kh6 Rf8 Ne3+ Kd3 Nd1 Kc4 Qa3 Rc2 Qb2 Nef6 Nc5 Rd8 Nd7 Bf3 Kg6 Ne8 Bge5 Bg2 Bg7 Be4+
4RR1q/rB4nB/1B3B2/p2brQKb/Pn2p3/q5Qp/5Q1b/rN2bN1k b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b3 g5 b4 gxh4 bxc5 d5 Qe2 dxc4 Qf3 Qd3 Qd1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 a4 h5 d4 e5+ Ke3 a5 f4 b5 g4 c3 f5 h3 c6 b4 g5 h2 c7 b3 f6 b2 g6 h4 f7 h3 g7 c2 Ne2 Bd6 f8Q Ra7 Nd2 b1R Bb2 c1Q Qc2 Nh6 Qf5 Na6 Ng3 Nb4 Bd3 Re8 Rf1 h1B g8Q+ Re6 Ra3 Ra1 Rc3 Bb7 c8B Bf3 Rb3 Bc6 Bb7 Bh5 Re1 Qf6 Nf1 Qh8 Qg3 Bc7 Bc3 Qa3 Nb1 Re8 Qch2 Bb8 Rb2 Bc7 Rf2 Re6 Qfg4 Bd6 Rf8 Nf5+ Ke2 e3 Kf3 e2 Qhf2 Ng7 Bh7 Be8 Qf5 Bh5+ Qgg4 Bb8 Kg3 Re7 Kh4 Re8 Kg5 Re7 Rc1 e1B Qgg3 Re6 Q5f3+ e4 Qf5+ Re5 Re8 Kc4 d5 Bc7 d6 Bd5 d7 Bd6 Qh4 Kd3 d8B Bb8 Qfg3+ Ke2 Bd4 Bd6 Rc8 Bb8 Bf6 Bd6 Nh2 Bb8 Bb6 Bc7 Nf3 Kf1 Rf8 Bb8 Rce8 Ra8 Qhf4 Re7 Qd2 Ra7 Qh4 Bh2 Qd3+ Kg2 Nfd2 Kh1 Qhf2 Re6 Nf1 Re5 Qdg3
2q4R/2N1Nq2/R1K3nP/b2nr3/B1nr4/pk1p2RR/1Bb1p3/3QQnbQ b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Ke6 f4 d5 h4 a5 b4 g5 b6 g3 b5 e3 Kd3 g4 h5 a4 h6 a3 c5 e2 c6 e1Q c7 g2 b7 g3 b6 Qf2 Ra2 Nc6 b8Q Nf6 b7 Ra5 Qd2 Ne5+ Kc2 d3+ Kb3 d4 Kb4 Kd5 f5 Nc4 Nh3 g1B Qd1 d2 Ng5 g2 Qa8 Bd7 c8R Ba4 Rh3 Bc2 Qe1 d1N Bb2 Nde3 Rc6 Qc8 b8Q Ra4+ Kb5 e5 Bd3 e4 Ne6 Nf1 Ra1 e3 Nc7+ Ke5 Nc3 e2 Qab7 Bb4 Ra6 Re8 Kc6 Nd5 f6 Ba5 f7 Re7 f8R Qf7 Rh8 Rb4 Bf5 d3 Bd7 Kd4 Q7a8 Ra4 Qb3 Re5 Rd1 Bf2 Rb1 g1N Rc1 Nf3 Rg3 Bb1 Qbd1 Bc2 Rb1 Bg1 Ra1 Nde3 Rb1 Nh4 Nd5+ Bc3 Qb7 Ng6 Ne7 Nd5 Qed2 Bh2 Qa7+ Ncb6 Q1c1 Nfe3 Be6 Ndf4 Bc4 Nfd5 Bb5 Rb4 Rh3 Ra4 Qh1 Rb4 Ba4 Kc4 Bb5+ Kb3 Rg1 Rbe4 Qc1 Nbc4 Rgg3 Ba5 Qcd1 Rf4 Qhe1 Nf1 Qg1 Rd4 Qh1 Bg1 Ba4+
6QR/b3K1Rq/1r1r1NBP/pp2N3/2bB2bn/2nq1p2/1N1Qk2q/4b1QQ b - - 0 1 illegal: No proof kernel
5K2/1n2N2B/QnBnrb1p/Q2b1R1p/2Pr4/4B1p1/2q1N1q1/1R1bbBQk b - - 0 1 illegal: No proof kernel
4N3/5kq1/b2R1Qqp/P1p1b1Qn/3bB1r1/1p1Q1K1R/1b1R3N/rn1QB1r1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 b5 g4 e5 d4 c5 f4 e3 a4 e4 d6 h3 f5 h2 f6 b3 d5 b4 g5 h6 d7+ Kf7 d6 b2 Bd2 b3 Ba5 Ba6+ Qd3 Ne7 Nc3 b1Q Ra2 Nd5 Bg2 Bg7 Rd2 Qe7 d8Q Nd7 Nf3 Rg8 Nb5 Qe5 Rhd1 h1R Nc7 Rg1 Nh2 Qd4 Bf3 Rg4 Ne8 Nc3+ Ke1 e2 g6+ Kf8 f7 Nf6 d7 Nh5 Qg5 Be5 d8Q Qc2 Qd5 Nb1 Qd7 Qa1 Kf2 e1B+ Ke2 e3 Be4 Qd4 Kf3 e2 Bb4 Bf2 a5 Rd8 Rh1 e1B Bc3 Bg1 Bb4 B1g3 Qd5 Bf6 g7+ Ke7 f8R Be5 Bc3 Rd6 Bb4 Qa1 Bc3 Bgd4 Bb4 Bb2 Q5d4 Ke6 Rf7 Rd8 Rd7 Rg1 Rd6+ Kf7 Q4e3 Bed4 Qee2 Bfe5 Qd1 Rd7 Nf1 Re7 Rh3 Re6 Nh2 Rg6 Qd8 R6g4 Nc7 Re8 Qg5 Re7 Ne8 Re6 Re2 Rg6 Be1 Rh1 Qd8 Rgg1 Rg2 Rg4 Rd2 Bf4 Rd5 Bde3 Qf1 R1g2 Bg3 Bf6 Rd6 Na3 Qb1 Qe5 Qfe1 Rf1+ Bf2 Rgg1 Bh7 Qg5 Bf5 Bb2 Bd3 Qc3 Be4 Qcf6 Qd3 Bed4 Qee2 Ra1 Be1 Nb1 Qd1 Qe6 Qa8 Bfe5 g8Q+ Ke7 Qg6 Qef6+ Qf5 Qgg7 Qd8+ Kf7 Qf4 Kg8 Qf5 Qfg6 Qfg5 Kf7 Qdf6+
R6q/n1Bn4/1n3Np1/1N1RQrbk/1KN2P2/3Rq3/p1b2R1p/rQ2nr1B b - - 0 1 illegal: No proof kernel
5B1N/2RNnbQQ/r3qrp1/R1n2q1B/1KN1PRp1/3qk3/2pN4/b1r4r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 Ke4 h4 c5 b6 a5 b5 f5 h5 f3 b7 f4 h6 f2 b6 a4 h7 f3 d5 a3 d6 a2 d7 Ne7 Ba3 Ke3 Qc2 Na6 b8N Ra7 Bg2 f1R b7 f2 Nd2 Ra8 Rc1 a1Q+ Qb2 Qb1 Bd5 Qb6 d8Q Be6 Qd7 Qf5 Ngf3 Bf7 Ne5 Qbe6 Rh5 Rh1 Qc7 f1Q Nbd7 Q1f3 b8R Q3e4 Qc2 Qd3+ Kb2 c3+ Kb3 Rg8 h8N c4+ Ka4 Nc5+ Kb4 Ra7 Rb7 Ra5 Rf1 Ra6 Qb2 c2 Rf4 c1R Be4 Qh7 Bg6 c3 Rhf5 c2 Bh5 Qdd5 Rg5 Qhf5 Qa1 g6 Qb2 Qf3 Nec4+ Kf2 e4 Bg7 Ra7 Rc8 Qb7 Rcc6 Qc7 Ke2 Rb7 Qd3 Qd4 Bh6 Qg7 Rd6 Qh7 Bg7 Ra7 Ba1 Rb7 Rdc6 Qe5 Qed5 Qeg7 Rf6 Ra7 Qfe6 Re5 Qf5 Rc7 Qde6 Rd5 Nb3 Rb5 Nc5 Ra5 Nc8 Bb2 Na4 Be5 Nc5 Nf3 Kf2 Bd6 Ke2 Bf8 Ne7 Ncb6 Kf2 Nd2+ Ke3 Nbc4+
3RB2Q/N2qq3/nK1B1Rp1/6pN/kR1n1P1b/2r1pq2/BB2b3/Q1q3rr b - - 0 1 legal: proof: e4 b5 g4 c5 a4 f5 axb5 fxe4 d4 cxd4 g5 h6 Bg2 hxg5 Bh3 Qb6 Bf1 Qd8 Ke2 e5 f4 d5 c4 Kd7 b4 a5 h4 g6 b6 Kc6 h5 e3 Kd3 a4 h6 e2 b7 e1Q h7 a3 c5 Kb5 c6 a2 c7 Nh6 Ne2 Qd7 Bb2 Bc5 Ng3 Na6 b8B Nf5 Nh5 Qe7 Qc1 Ka4 b5 Bd7 Qc3 Qc1 c8B Bb4 b6 Bb5+ Qc4 Ra7 Bd6 Rc7 b7 Rc5 b8R e4+ Ke2 e3 Kd3 Rc7 Na3 Rc6 Rb1 a1R Be6 Rc5 Rd8 Rc7 Ke2 d3+ Kf3 d2 Qd4 Bc4 Nb5 d1Q+ Be2 Rc6 Na7 Be1 Bf7 Qdd2 Be8 Bh4 Rd1 Qd3 Qf6 d4 Qe5 Qdd2 Ke4 d3 Bg4 Bb5 Kd5 Nd4 Be6 Qe2 Rd2 Rc3 Rc2 d2 B6f7 Rc8 Rc6 d1Q Rb6 Rc3 Rc6 Rg8 h8Q Qg4 Qef6 Qgd7 Rb6 Rg7 Rc6 Rh7 Be6 Nb8 Qe5 Bc4+ Kc5 Be2+ Kb6 Na6 Ba2 Rh6 Bb8 Qh1 Rf6 Qf3 Bd6 Bg3 Ng7 Rh1 Nh5 Bh4 Qf5 Be1 Bba3 Qd1 Qh3 Bh4 Qf1 Qc2 Rb5 Qd1 Bb2 Qd2 Qh3 Rag1 Qf1 Qc2 Qa1 Qc1 Rb4+
2bNB2n/1R1q4/3Q1p1k/3R1BP1/1b2B1qr/N1p1Np1q/K1n2B2/bQr1q3 b - - 0 1 illegal: No possible last move, all moves rejected
r1B5/q1Nnn1N1/b1q2pNN/2Q2P1K/p1r2Q2/1Rq2R2/1qp1R1kB/3b1b2 b - - 0 1 legal: proof: c4 g5 d4 d5 a4 dxc4 h4 gxh4 e3 Bg7 d5 Bd4 exd4 b5 Bd3 bxa4 Be2 Kd7 Bf1 Ke8 Ke2 Kd7 Kf3 Kd6 b4 a5 g4 e5 g5 c5 b5 h5 b6 c3 b7 e4+ Kf4 f6 f3 a3 g6 a4 g7 c4 Qd2 c2 Rh3 c3 Ba6 a2 Ne2 e3 Na3 Nd7 b8R Qc7 Rb3 Ne7 g8N Qa7 Nh6 Rg8 Rab1 a1Q R1b2 Rg2 Rg3 h3 Bb7 h4 Kg4 h2 f4 h1B f5 h3 Kh5 h2 Rf3 Rg6 Nf4 Rg4 Ng6 e2 Ra2 e1Q Qf4+ Qe5 Be3 c1Q Re2 c2 Bg1 Bg2 Ba6 h1B Bh2 Qcb2 Bb7 Kc7 Nb5+ Kb6 d6 Bf1 d5 Kc5 Nc7 Qe4 Ba6 Kd4 Bb7 Qc3 Ba6 Qab2 Bb7 Nc5 d7 Bhg2 d8N Nd7 d6 Bh3 Bc6 Ba6 Bb7 Bhg2 Bc8 Bh1 Rh3 Bf3 Nde6+ Kd3 Ng7 Qc6 Re3+ Kd2 Rg3 B3e2 Rgf3 Ke1 Re6 Ne5 d7 Bd1 d8Q Ke2 Qc1 Rc4 Qd6 Ke1 Qc5 Ke2 Re3+ Kf2+ Rf3+ Kg2 Qf4 Nd7 Re2+
1Rq1N1n1/1NrQkr1R/5p1r/B1R1pn1n/B1p3qQ/K1RbP1n1/8/4bB2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 c4 gxf4 axb5 d5 g5 dxc4 Qb3 Qd5 Qh3 Qd8 Qg4 hxg4 Kd1 e5 Kc2 a5 d4 c5 h4 f3 b4 g3 Kb2 f2 h5 g2 b6 a4 e3 f6 d5 Bg7 g6 Ra6 d6 Bg4 d7+ Kf8 h6 Ra8 b7 Qc8 h7 Bf5 b5 Ra7 Bd3 f1N Nh3 g1Q b6 Qg4 Nf4 Nh6 Nc3 Nc6 Bd2 Ne7 Ne4 Ng3 Nh5 c3+ Ka2 c2 Nd6 c1R Ba5 a3 Bf1 Rg8 h8Q Nd5 b8Q Rb7 Qa7 Nf4 Kb3 a2 Ka3 Rc2 Rc1 a1N Rh3 Rh2 Rc2 Nb3 d8R+ Ke7 Rh4 Bf8 Ng7 Nd4 Nge8 Ke6 g7 Bd3 Rd7 Ndf5 Rc7 Be7 Rc6 Rf8 g8B+ Kd7 Bb3 c4 Ba4 Ng8 Rh3 Rf7 Qh7 Rc7 b7 Rh1 b8R Rb7 Qd4 Rc7 Qh6 Ke6 Qg5 Kd7 Rh7 Rh6 Qh4 Nfh5 Qd5 Bf8 Qb5 Ke7 Nb7 Kd7+ Ka2 Ba3 Rc5+ Ke7 Qc6 Bc1 Rc3 Bd2 Ka3 Be1 Qd7+
B3Rbqq/n5Q1/3kqp1P/NbRR4/p3n2n/4N1B1/pq2Nrr1/N2QK3 b - - 0 1 illegal: No possible last move, all moves rejected
4BN2/Kb1nr2N/2R1P1R1/3RqQ1r/kp1p1r1n/6bp/5r1B/2NQnqN1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc6 e4 Kb5 c4+ Ka5 a4 f5 c5 h5 g6 b5 g7 f3 g5 f4 g6 h4 e5 b3 c6 b4 c7 b2 Nc3 b1R Nce2 Nh6 g8N f2 g7 f3 Bf4 h3 Nc1 Bd6 Bh2 Bb7 c8Q Nf5 Nf6 Qc7 g8R Ra7 Rg6 Rb2 Nh7 Nh4 Qf5 Nd7 e6 Bg3 Ra3 Qb8 Rc3 Qe5 Be2 f1R Rc6 f2 Bh5 Ra6 Rg4 Re2 Be8 Ra7 Rg6 Re4 Kc2 d3+ Kb3 d4 Kc4 d2 Rd6 Rg4 Rd5+ Kb6 a5+ Kc6 a6 Rf4 Nf6 Rh5 Nh7 Ra8 a7 Rb8 Qf3 d1N a8N Rc8 Nb6 Ne3+ Kd3 Rb8 Qd1 Neg2 Kc4 Ra8 Nf6 Ne1 Nh7 Kc7 Kb5 Rd8 Bf7 Re8 Ka5 Re7 Be8 Bc6 Ka6 Bb7+ Ka7 Kc6 Rd6+ Kb5 Rc6 Nf6 Nd7 Ka5 Ndf8 Nd7 Nge2 Kb5 Rg1 Ka5 Qd2 Ka4 Rg2 Rh1 Ng1 f1Q Qdd3 Rf7 Rgc2 Re7 R2c5 Rf2 Rd5 Rf4 Nf3 Rg1 Qe2 Rg2 Ng1 Rgf2 Qd1+
2rR1nQ1/kr1Q4/1RbQp3/2b2qpb/npbq2PB/1B4N1/RR1Nn3/4K3 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 b4 axb4 h4 fxe4 h5 Qd6 h6 Qxh6 Na3 Qh4 Nb1 Qh2 g4 b3 a4 Kd7 d4 b5 f4 g5 a5 h5 a6 c5 f5 Kc7 a7 Kb7 d6 b4 f6 e3 d7 b2 d8R c4 f7 c3 d5 h4 d6 e2 d7 c2 Qd3 h3 Qh7 Qe5 Nd2 b1B Kf2 e1Q+ Kf3 h2 Ra6 Nf6 Re8 e6 d8Q Nfd7 Nb3 Q1c3+ Kf2 Nb6 Bc4 N8d7 Ne2 Bc5+ Be3 c1N f8Q Qcd4 Nd2 Bg6 Bb3 Bh5 Qd6 Rb8 a8R Qee4 Kf1 Qf5+ Bf2 Rf8 Ra2 Na4 Ra6 Rg8 Rg1 h1B Rb6+ Ka7 Qh8 Rf8 Qg8 Ba6 Rb2 Bf3 Bh4 Bc4 Qc8 Rf7 Rd8 Nf8 Qcc6 Rfb7 Qcd7 Rc8 Ra2 Nd3 Ng3 Bg2+ Ke2 Bc6 Rb1 Nc1+ Ke1 Ne2 Rbb2
kr3n1b/1Q2r3/BQrp3q/R1R1B1p1/3NRnq1/2rBK1B1/1Pb2p2/1b1N4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 a5 c4 g5 e4 f5 h4 f3 b6 a4 e5 f4 e6 d6 c5 a3 h5 g3+ Ke1 g2 Kf2 a2 b7 d3 c6 d2 c7 Qf6 h6 Ra7 e7 Kd7 e8R Kc6 h7 Ne7 Rh6 Nd7 b8B Kb7 Qe2 d1B Rh1 Qh6 Rh3 Bg7 Qe4+ Nd5 Nc3 Ka8 Nge2 Bc2 Nd1 Nf8 Nd4 Bf5 c8B Re7 Ba7 g1R Qe3 Rg3 Bd3 Rg8 Bd2 Bh8 Bc3 Bg6 Rc1 a1Q Bb6 Qa7 Bca6+ Qb8 Be1 Qc8 Bd8 Bb1 Rc5 Qg4 Rh1 Rb7 Re4 Re7 Bda5 Bf5 Bac3 Bc2 Kf1 f2 Rg1 Rf3 Ke2 f1R Bg3 Bb1 Qf2 Re3+ Kd2 f3 Qg2 f2 Qf3 Bg7 h8Q Nf4 Qh7 Be5 Qe2 Rf3 Qe3 Bh8 Rh1 Bc2 Rh4 Bg6 Ree5 Re1 Ra5 Rc7 Rec5 Rc6 Qc7 Bh7 Qee7 Re6 Qb6 Rfe3 Qf7 Re8 Qd5 R3e7 Qe4 Rc8 Ke3 Bb1 Nf5 Rb8 Be5 Rgg7 Qh1 Rc7 Nd4 Rge7 Bdb5 Bhc2 Bd3 Rcc8 Bh7 N4e6 Ra2 Qh3 Kf3 R6c7 Rb5 Bd3 Raa5 Rc3 Rc5 Bdc2+ Bhd3 Qf5+ Rf4 Qg4+ Ke3+ Reb7 Rc6 Re7 Qd5 Rcc7 Re4 Nf4 Rcc5+ Rc6 Qf7 Re6 Qd7 Re7 Qdb7+
1K6/1RB2n2/B1PQb2r/1QbpN1Nk/3nbBn1/q3N2p/3q1pn1/1R1B2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 f5+ Kd5 Kf7 g4 Kg6 c4 d6 e4 a4 b4 f3 b6 f2 e5 a3 c5 d3 b7 a2 b5 f4 e6 d2 e7 f3 b6 Nh6 e8Q+ Nf7 g5 Rh6 Nc3 Nc6 b8N Bf5 Be2 f1N b7 h3 Nd7 f2 b8B h2 Nf3 h4 Bc7 h3 Nde5+ Kh5 g6 Bg4 g7 Rb8 Ba6 Rb1 Ng5 Qd7 Rg1 Qd8 Rg3 h1B+ Rf3 Nh2 Qd7 Rb4 Rb1 a1Q Qe2 Be7 Nd1 Qa3 Qe6 Re4 Rfb3 Bg2 Rb6 Qd7 Qb5 Re1+ Kc4 Rf1 Rb7 Rg1 Qd5 Be4 g8B Nh8 Be6 Nf7 Qd4 Bgf5 Qd3 Ng4 Bd5 Nb4 c6 Be6 Kd4 Qd8 Bb3 Bf8 Qdc4 Be7 Qcd5 Nc2+ Kc4 Qf8 Ba4 Nd4 Bc2 Qa2+ Kb4 Qb2+ Ka5 Qa3+ Kb6 Qa2 Qdc5 d5 Ka7 Qa5 Nc3 d1N Bf4 Nde3 Nd1 Ng2 Ne3 Qd2 Qa3 Bb4 Bd1 Qc5+ Kb8 Qcc3 Qaa4 Qa3 Qaa5 Bd6 Qab4 Bf8 Qd6 Be7 Qd8 Bc5 Qd6
3Bq1b1/5Nr1/N1pQ1Q1K/3b4/2bnN1Pp/p3n1R1/Bq2Rb1k/1q1Q1rQ1 b - - 0 1 illegal: No possible last move
1rN1N2K/3N3b/1PB1n2q/5Q2/2Bnpq1b/p1QbB2R/pRr4B/1b2n2k b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 f4 h3 b4 h4 g5 e3 b5 c5+ Ke4 e5 d4 c4 b6 a3 f5 e2 g6 e1N g7 a4 f6 c3 f7 a2 Be3 h2 Qd2 h3 Bg2 a3 Nf3 c2 Qc3 c1Q Nbd2 Qg5 Rb1 Ba6 Rb2 Ne7 g8B Nf5 Nh4 Qg3 Ng6 Be7 f8N Bh4 Ne7 Ng7 Nd7 Ne6 Kf5 Qf4+ Kg6 Nc6 Bf7 Rhe8 Kh7 Reb8 Bg8 Bb5 Kh8 Bd3 Nf6 Qf2 Qb4+ Nc5 Nf3 Bb1 Bf4 Ra7 Qa5 Rc7 Ne8+ Kd7 d6 Rcc8 d5 Nd4 Bh6 Qfe3 Bh7 Nce6 Qd2 Rc2 Qc3 Qg5 Nc8 Qcd2 Bd3 Qf5 Rg1 h1B Bf4 h2 Bb5+ Nc6 Bc4 Qg5 Bg3 Qdf4 Bf2 Qg6 Be3 Qgg5 Nd4 Qg6 Nb3 Qgg5 Bf3 Bg2 Rh1 Bf1 Bg2 Bd3 Be4 Kd8 Nc5 Qh6+ Kg8 Ncd4 d7 Ng5 Bf3 Bh7+ Kh8 Nge6 Na7 Ke7 Nc8+ Kf7 Bg2 Kg6 d8Q Kf5 Qf6+ Kg4 Qf5+ Kg3 d6 Qf1 d7 Qff4 Bc6 e4 Rf1 h1B Rf3+ Kh2 Rg3 Bg2 d8B Qf3 Nd7 Bf1 Be7 Bd3 Bd6 Kh1 Bdf4 Qf1 Rf3 Qf2 Bh2 Qf1 Rg3 Qff4 Rh3
4b3/K2Rk1B1/Rprqr2Q/n2BnR2/b3n2q/3npp2/NB1RP2N/bQ6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 g6 Bh3 gxf5 Bf1 f4 Kf2 c5 d4 e5 h4 f5 a4 e4 d6 e3+ Ke1 b3 h5 f3 d7+ Ke7 d5 c4 h6 g3 h7 g2 a5 c3 a6 f4 a7 b2 Ra6 b6 Rh5 c2 Rf5 Nf6 Nc3 b1B Na2 Ne4 Bb2 c1N Qb3 f2+ Kd1 Bd3 Nf3 g1N Nh2 Nf3 Bg2 Bb5 Kc2 f1Q Bh1 Rg8 h8B Ba4 Bhg7 Nc6 Bg2 Qc7 d8R Qe1 Bh1 Rb8 a8Q Na5+ Qc6 Nd3 Bg2 Qd7 Qh6 Nfe5 Bf3 Qd6 Bg2 Nd2 Kc3 Bcd7 Qc2 Bdb5 Qb1 Qh4 Be4 Be8 Bf3 Nc5 Kb4 Rc8 Bg2 Rc6 Be4 Qg6 Bg2 Nde4 d6+ Ke6 d7 Ke7 Bf3 Qd6 Bh1 Bb3 Kb5 Ncd3 Raa8 Ba4+ Ka6 Rh8 Ka7 Rh7 Bh8 Rf7 Bg7 Rf6 Bf3 Re6 Bg2 Nf6 Bd5 f3 Rdc8 Rc1 Rc2 Ne4 Rd2 Rc6 d8R Qc5 Kb8 Qb4 Ra6 Qa3 Bh8 Bg7 Ka7 Bf6 Bg7 Qd6 Ba3 Ng4 Bc1 Ba1 Bcb2 Nge5 Rd7+
3K4/4BB2/bp1Q1bN1/2R1b1rR/2N1pp2/1r2N2B/5NPn/qQbqqnk1 b - - 0 1 illegal: No proof kernel
1Q1rb2N/q7/1pBn1rr1/1pR1b2B/b1NQ2PQ/kpKB4/b7/B3Rnq1 b - - 0 1 illegal: No proof kernel
6nr/n2n3b/PB4N1/1qN1bkr1/p1n1Bp1p/2Qq1R1R/4bQR1/B3B2K b - - 0 1 illegal: No proof kernel
q1N2Q1R/b2BR3/p5r1/n1prPN1q/Rk2b3/3bKnb1/pN6/BqN3Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Ke7 d4 Kd6 h4 g5 e4 f5 b4 g3+ Ke2 f3+ Ke3 a3 b5 a6 h5 g4 b6 a2 h6 f2 b7 g2 h7 g3 Nd2 Nd7 b8Q Bb7 Ne2 g1B Rh3 g2 Bb2 Ne7 Nc1 Rg8 h8R Nc6 Bb5 Na5 Bc6 Ne5 Bd7 Bh2 Qg1 f1B Qc8 Bg3 Nc4+ Ke7 Rb1 Bd3 Ba1 Rg6 Nb2 Kd6 R3h7 Qh4 Re7 Qh5 Qe8 c6 Qf7 Nf3 e5+ Kc7 d6+ Kb6 d5 Kc5 Qf6 Rd8 Qg7 Kb4 Qf7 Bg7 Qf8 c5 Bc6 Ba8 d7 Bf6 d6 Bb7 Ba4 Bbe4 Bb5 Rc8 d8N Rc6 d7 Rd6 Rg8 Rd5 Nf7 Bfh4 d8N Bf6 Qf2 g1Q Nh6 Qg2 Bd7 Bfh4 Ndf7 Bf6 Re6 Bd8 Rh8 Bb6 Nd6 Ba7 Re8 Ne1 Nc8 f4+ Kd2 f3 Ke3 Qgh1 Qg1 f2 Re7 f1Q Nf5 Nf3 Nd1+ Kc4 Rb3 Qfg2 Ra3 Kb4 Nb2 Qc2 Reh7 Qb1 Rg7 Q1h4 Rf7 Qd8 Re7 Qe8 Be6 Qc6 Bd7 Qa8 Ra4+
N1N1B3/2B2bQ1/p3R1P1/r2kp3/1nr1p1bN/1N5b/3KnR1q/qqRQ2b1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Ke6 g4 h5 f4 d5 g5 h3 c5 d3 g6 d4 b6 h4 b5 h2 f5+ Kd5 c6 e5 b7 d2+ Ke2 h3 f6 Nh6 b6 Na6 b8N Nb4 f7 Qh4 c7 Nf5 b7 Bc5 f8R Qh7 Nd7 Ng3+ Kf2 Qh6 b8Q Ne2 Ba3 Rh7 Nf3 d3+ Nd4 Qh5 Ke3 Qh4 Rg1 h1Q Rf2 h2 Qb6 Re7 Qf6 Re6 Bh3 Rc6 Qg7 Bb6 Rgf1 Rc4 Rf6 Qg1+ R1f2 h1Q Re6 Bc5 Bf5 Q4h2 Bh3 a6 Bf5 Rb8 Bh3 Ba7 Bg4 Rb6 Nf5 Qf1 Nh4 Rb5+ Nc5 Bd7 c8N Ra5 Bh3 Be8 Bf5 Bf7 Bh3 Nd4 Nd7 Ne2+ Ndb6+ Kc5 Qe1 d1B Na8 Kd5+ Kd2 Ba4 Qd1 Bd7 Ra2 Bb6 Rc2 Bd4 Rc1 Bc5 Rf3 Bg1 Rf2 Qe1+ Ke3 Qc3 Nd2 Qa1 Nb3 d2 Bg4 Na2 Bd6 Nb4 Bc7 Qb1 Qc2 d1B Kd2 Qa1 Re8 Bf5 Re6 Qb1 Bh3 Qa1 Bf1 Bh3 Qb1 Nc3 Bd3 Bdg4 Qc2 Ne2 Qd1 Rcc5 Bb5 Rc4 Rc3 Q1g2 Be8 Qf1 Qc2 Qfb1 Qd1 Bg2 Rc2 B2h3 Rc1
BB2kbq1/8/pQ1R1rp1/R3RBp1/1bN2NrR/P2KQ3/q1nnr3/4b2r b - - 0 1 legal: proof: e4 d5 g4 dxe4 c4 b5 g5 bxc4 Qc2 h6 Qa4+ Qd7 Qd1 Qd8 f3 hxg5 Qe2 e5 Kd1 e3 Na3 e4 Kc2 Bb7 Qd1 e2 Nb1 e3 Bh3 Bb4 Bf1 Be4+ fxe4 Bf8 d4 e1B b4 c5 h4 f5 h5 e2 d5 g6 h6 f4 b5 f3 e5 c3 e6 a6 e7 c4 h7 f2 b6 Bd2 b7 e1Q d6 Qe4+ Bd3 f1R Ne2 Nc6 b8Q Qe6 Nf4 Be1 Qf3 Nf6 Qb6 Ne4 Rh4 Nd2 Bf5 Qf7 Qfe3 Nd4+ Kd1 Qe6 Na3 Nc2 Ke2 Rg1 Bb2 Rg4 Bc1 Rg8 h8R Rg7 Bb2 Rf7 Rg8 Rf6 d7+ Kf7 Bc1 Qc8 d8R Qb8 Rd6 Ke8 Qa7 Qb1 Rgh8 Qg8 Qab6 Rc8 Bb2 Rc5 R8h7 Re5 Rg7 Nb4 Rgh7 c2 Bd4 c3 Nc4 Ree6 Be5 c1B Rh8 Nc2 Kd3 Ba3 R8h7 Qb2 Rh8 Kf7 e8B+ Ke7 Bb5 Bb4 Bc6 Qa3 Ba8 Ke8 R8h7 Qb2 Rhd7 Re7 a3 Qa2 Rd5 Ree6 Bb8 Re4 R7d6 Ree6 Qg3 Re2 Rd1 Na1 Rb1 c2 Ra5 c1R Qf3 Nc2 Rb2 Bc5 Rbb5 Bb4 Rc5 Bg3 Rcb5 Rh1 Rbd5 Be1 Qfe3+ Be7 Be6 Bf8 Re5 Ke7 Bc8+ Kf7 Be6+ Ke8 Bf5+
nQ1NN3/2Q4p/1BnbrQR1/4n2K/3rPq1b/3nN3/b4p1p/N2Bq1Rk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 b4 Ke4 c4 a5 g3 f5+ Kh5 d5 g4 f3 e3 d3 c5 f2 g5 d2 c6 a4 c7 a3 g6 a2 g7 h3 b6 h2 b7 f4 b5 f3 b6 d4 Ne2 d3 Qc2 d1N Bd2 Qe8+ Kh4 Nc6 b8N Ra4 b7 Nb2 Nc1 Nc4 Qd1 Nge7 g8Q Nb6 Na3 Be6 c8N Na8 Qg7 Ne5 Ba5 d2 Rg1 N7c6 Nb3 Rd4 Qc7 Bd6 Be2 f1Q Rg6 f2 Bb6 Qe1 Bh5 Qf7 Nc4 Re8 Rb1 Qf3 Na1 Qf4+ Bg4 Bg8 Kh5 Re6 Qa4 d1N Qa6 Nb2 Bd1 Nbd3 Rc1 Na5 Nc6 Bf7 Nd8 Nac6 b8Q Bg8 Bc2 Kf3 e4 Bf7 Ne3 Bg8 Ng4 Kg2 Bd1 Kh1 Ne3 Bf7 Ne7 Bg8 N7d5 Bf7 Nf6 Bg8 Nac2 a1B Ne8 Bc3 Qa1 Bcb4 Qb2 Be7 Na1 Bh4 Qa3 Bf8 Qae7 Bf7 Qf6 Bd6 Rc4 Re7 Rc5 Ba2 Rd5 Re6 Ra5 Ng4 Rag5 Nge5 Rg1+
1Br2r2/4k1P1/p4RqR/K1NNB2Q/n3p3/p1n1Q1Bn/B2nb3/b1Rq2b1 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 a4 bxa4 h4 gxh4 Rh2 f5 Rh1 fxe4 b4 c5 d4 e5 Kd2 h5 Kc3 e3 f4 h3 g4 e2 g5 e1Q+ Nd2 h4 g6 e4 b5 c4 d6 a6 Kb4 c3 b6 h2 d5 c2 b7 a3 g7 h3 f5 Ne7 f6 Bg4 Bb2 c1B Be5 Bb2 Ne2 Nd7 b8B Nb6 Nf4 Na4 Rc1 Ba1 Bc4 Qg1 Ba2 Be2 Nb3 Qg6 d7+ Kf7 d6 Rg8 Re1 h1N Nd5 h2 Nc5 Ng3 Rh1 Nf1 Qd3 Nd2 Qe3 Qc8 d8R Qcg4 d7 Qg1 Bg3 Qd1 Ka5 Rh8 Rf1 h1N Re8 Rg8 d8B Nf2 Bdc7 Nh3 Bce5 Rh8 Rc8 Rg8 Rc6 Rh8 Bbc7 Rc8 Bb8 Ke8 f7+ Kd8 Nb6 Nd5 Rff6 Ndc3 Nd5 Be7 Rb6 Re8 f8Q Bd6 Qg8 Rf8 Qh7 Ke8 Nd3 Bc5 Qh5 Bd4 Nc5 Kd8 Qeh6 Bg1 Qe3 Ke8 Nf4 Ke7 Rbd6 Qg4 Rh6 Qg5 Rdf6 Qg6 Nd5+
4N1Nk/6p1/n3bqQ1/R1p2BnQ/1qPQ4/6Q1/KBq1pnr1/bR3Rqr b - - 0 1 legal: proof: f4 b5 e4 h5 g4 hxg4 a4 d6 e5 dxe5 axb5 exf4 Ke2 f3+ Kf2 Qd4+ Ke1 Qd8 d4 c5 Kd2 a5 Kc3 f5 Kb3 Kf7 h4 e5 c4 g3 b6 e4 d5 g2 h5 e3 d6 f2 b7 f4 h6 f3 d7 Bd6 h7 Nh6 Nc3 Qb6+ Nb5 Ng4 d8Q Be6 Ne2 g1N Nf4 Be5 Bh3 f1Q Q1d3 f2 Nh5 Qe2 Nf6 f1Q Qc2 Bc3 Qd4 Qf4 Qce4 Nf3 Qg6+ Kf8 Ka3 a4 b4 Ng5 Nc7 Ra5 b5 Na6 Nce8 Qff3 Ng8 Qf6 b8Q Qd3 Rg1 e2 Qc7 Nf2 Bf5 Qc2 Nh6 Qb7 b6 Rb5 Qb8 Rb1 Qg3 Qb8 Bd2 Rc1 Rh1 Rg1 b7 Rg2 Rhd1 Qc7 b8R Qb6 Bc1 Qa5 Rb5 Bb2+ Ka2 Qb4 Ra5 a3 Rd3 Qd1 Rb3 Qg1 Kb1 a2+ Kc2 Bc3 Ba3 Bb2 Rf1 Bc3 Bc1 a1Q Rb2 Qaa4+ Kb1 Qd1 Ka2 Qd3 Rb1 Ba1 Bb2 Qdc3 Ng8 Qc2 Ne7 Rg8 Qh6 Kf7 h8Q Kf8 Q8h7 Rh8 Q7g6 Rh7 Nd5 Kg8 Ne7+ Kh8 Qh1 Rh6 Ng8 Rh5 Qhh4 Rh7 Qhg4 Rh1 Q4h5+
1b1qn3/B4np1/pq1q2Br/2RPpB2/1Q1N4/Q3q1k1/nRN5/1K1Nr1Nb b - - 0 1 illegal: No proof kernel
Q1K1B3/Qr1nkP2/p4Qp1/pnRnqbb1/3Q4/Nb1q4/6bN/1R1RB1r1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 hxg4 a5 f5 a6 bxa6 exf5 a5 Ke2 d5 Kd3 e5 f4 g6 h4 g3 b4 g2 c4 a6 h5 Qd7 c5 Rh7 h6 Qd6 b5 Rd7 f6 Rda7 b6 Rb7 h7 Be7 h8Q Nd7 c6 Rab8 Nf3 g1N c7 Ne2 f5 Nc3 Bd2 Nb5 f7+ Kf8 Nh2 Bg5 Qf6 Ne7 Be1 e4+ Ke2 e3 Kf3 e2 Na3 d3 Rb1 d4 Ke4 d2 Bg2 Ra7 b7 d3 Qa4 d1B Qad4 d2 Bf1 Rba8 b8Q Rb7 Qba7 Bb3 Bh3 d1B Bg2 Nb8 Rf1 Qd7 Ke5 Nd5 Be4 Qd8 Bf3 Nd7+ Ke6 Rab8 Be4 Bdc2 Bd3 Nbc3 Bb5 Be4 Kd6 Bg2 Rd1 N7b6+ Kc6 Be6 c8R Nd7 Kd6 Nb4 Rc5 Nbd5 Bh4 e1Q Rb1 Qc1 Rd1 Qe3 Be1 Qe8 Ba4 Qd3 Bc6 Rb4 Ba4 Nb5+ Kc6 Rc8+ Kb7 Rc6 Qa1 Qe7 Qad4 Rb6+ Kc8 Rb7 Qfe5 Rc4 Qeb8 Rc1 Qba8 Nbc7 Bc6 Qf6 Bb5 Ke7 Bc6 Qe5 f6+ Kd6 Bb5 Bf5 f8Q+ Ke6 Bc6 Nb5 f7 Kf6 Qh8+ Ke7 Qf6+ Kf8 Rd2 Nb8+ Bd7 Rd1 Bf2 Rf1 Be1 Rg1 Qh8+ Ke7 Rdd1 Bfe4 Be8 Nd7 Qg7 Bf5 Qf6+
1Nn5/kR1N1p2/b1Q1BB2/2rrQpq1/1p1br3/r3R2b/2Q1Q1P1/3qnKR1 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 g5 cxd5 gxh4 f5 e6 Ba3 exf5 Bb2 Ke7 Bc1 Ke8 e4 Kd7 a4 c5 d4 Kc7 d6+ Kb6 d7 h5 d5 c4 a5+ Ka7 d6 b5 a6 h3 e5 c3 e6 b3 e7 b2 e8Q c2 Qe5 h2 Bc4 h4 Ra5 b4 Qe7 h3 Bg5 c1R Re5 Nc6 Re3 Nd4 Kf1 Rh4 Nf3 Bg7 Qe5 Re4 Nbd2 b1B Be6 Rc5 Qe2 Bc2 Rg1 h1R Nb3 h2 Bf6 Bd1 Na5 Ne7 Qc2 Qg8 d8R Rd5 Qe2 Nc2 d7 Ne1 Rf8 Bb7 d8Q Nc8 Qdc7 Bh8 Qcc2 Qg5 Qeb2 Rc5 Ne5 Rd5 Nd7 Bg7 Qb5 Bg4 Qbe2 Bh3 Rh8 Bf8 Qd4+ Bc5 Qe5 Bd4 Rd8 Nb6 Rf8 Rc8 Rg8 Rcc5 Re8 Nc8 Nc6+ Ka8 a7 Ba6 Ncb8 Kb7 Nf8 Kb6 Kf2 Kb7 a8Q+ Kb6 Qc6+ Ka7 Rf1 Rg1 Nfd7 h1Q Re7 Nf3 Rb1 Ne1 Qec4 Rf1+ Ke2 Rf3 Rc1 Nd3 Rg1 Rg3 Kf1 Ne1 Re2 Ra3 Re3 Qh2 Q4d3 Qhg3 Qde2 Q3g4 Qed3 Qd1 Qdc4 Qg3 Q4e2 Qg5 Nf8+ Bb7 Rd7 Ka8 Qcd6 Ba6 Rb7 Nb6 Nfd7 Nc8 Rb5 Ka7 Qc6 Qg7 Rb6 Qg5 Rb7+
r5qq/2RK1pb1/1Nn1BR2/1Qp1p1k1/3b1Bbr/R2n1Pr1/2R4r/Q2BN3 b - - 0 1 illegal: No possible last move, all moves rejected
B4N1R/Rb1rnpN1/3q3P/1qp1p2q/1b3n2/Q1BkN1BB/4b2q/K5Qr b - - 0 1 illegal: No proof kernel
Q4n2/4rp1k/bR2pR1n/1Pp1qQr1/q1N4n/N1BK4/1Q1Q3r/1B1Nbr2 b - - 0 1 illegal: No proof kernel
2bbQ1r1/1Q2Pr1p/N5n1/RK1p4/2QQ2pB/8/1Rqq1r1n/2rBNRqk b - - 0 1 illegal: No proof kernel
5N1b/4p1Bb/rqk5/1qbnK1N1/p1BRn1B1/QB3pP1/4n1rR/2Qn2Q1 b - - 0 1 illegal: No proof kernel
BN2Q3/3bpB2/qb3q2/R1q2p1r/p3n1RR/r2nqPN1/k3Q1R1/b2KB3 b - - 0 1 illegal: No possible last move
1R1n4/RQ2pb2/nQ1R2r1/1Pr3Nn/4Rppk/2q4q/b3QbB1/n1B2K1N b - - 0 1 illegal: No proof kernel
R1N2K2/4p3/3rBbbp/1r5r/1P1RpR2/1N4bN/1k1Q1B1N/qqrQ2nn b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 f4 Kf6 c4 d5 b4 a5 g4 a4 b6 h3 b7 h2 c5 d3+ Ke3 a3 Kd4 d2 f5 a2 c6 Nh6 Kc5 Ke5 g5 d4 g6 d3 g7 Ra5+ Kc4 Rb5 g8R Bg7 c7 Bf6 Rg4 Nc6 b8Q Nd4 Nh3 Nf3 Rf4 Ng4 Qa8 Bd7 c8N Qa5 Qb7 Bc6 Qd7 Ng1 Be2 Bh4 f6 Bg3 f7 Nf2 f8N h6 Qd8 Be8 Bg4 Bg6 Nh7 Qa7 Qd7 Rd8 Be6 Qa6 N7g5 Qa5 Qe1 d1R Be3 d2 Qe2 Rf1 Qd1 Qa7 Qd3 Rd6 Q3e2 Nf3 Rg1 Nh1 Rg2 Ng1 Bf2 Bh4 Rg3 Qa4 Rgf3 Bg3 Rd3 Qa7 Rd4 Qa8 Qb3 d1Q Nd2 Qb1 Qc3 Qa4 Nb3 Rc1 Qd1 Qb2 Rb1 a1B Qcc2 Qba2 Qc3 Bb2 Ra1 Qb1 Qcc2 Bc3 Qcd2 Qa3 Ra2 Qab2 Ra5 Q2a1 Ra8 Qaa2 Rd3 Qaa1 Bd7 Bh4 Bf5 Ng3 Nf3+ Kf6 Rd5 h1R Nhg5 Rh2 Rd3 Nh1 Rd5 Rh3 Nh2 Bg3 Rd3 Rh5 Nh3 Ke5 Bg4 Rb7 Kc5 Re6 Rd6 Rb5+ Kc6 Rf6 Kc7 Re6 Rd3 Rd6 Bd7 Bd4+ Kd8 Kd5 Rdf3 Kc4 Rd3 Bf6 Rd5 Bf5 Ke8 Bh7 Kf8 Bg6 Q2e2+ Kc3 Be6 Qba2 Rd4 Q2b1 Qee1+ Kb2 Qed2+
K1B5/2B1p1kb/3pbqQn/1N2B1qP/3p1B2/3RQ3/4rb1r/RRn1bNn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 g5 Kc4 b5+ Kd5 g3 h4 b3 c4 g4 a4 g2 f4 b4 c5 g3 h5 b2 f6 b3 c6 Rh7 a5 Rg7 f5 Rh7 c7 Rg7 a6 Ra7 Nd2 b1Q Ne2 g1N Qe1 g2 Nc3 b2 Nb5 Qe8 Qe3 Rb7 a7 Na6 a8R Nc5 R8a3 Rb6 Rd3 Re6 Be2 Rg3 Bg4 Bh6 Nf1 Rh3 Bd2 d6 Ba5 Kf8 f7 Qc1 Rb1 Qd8 Kc6 Rh2 Kb6 Kg7 Ka7 Qe8 Ka8 Qf8 Ra1 Bd7+ c8Q b1B Bc7 Nb3 Qe8 Qd2 Bh3 Nc1 Bg4 Re4 Bh3 Be6 f6+ Kh8 Bg4 Bf4 Bh3 Bg3 Bf5 Qg7 f8B Be1 f7 Qf6 Bh6 Bc2 Bg5 Kg7 Bf4 Nh6 f8B+ Kh8 Qf3 Re2 Qg6 Qe3 Be5 Qg5 Qe3 Nh3 Qf2 g1B Qe3 Bgf2 Bf4 Ng1 Bg7+ Kg8 Bh8+ Kf8 Bh3 Qff5 Bhe5 Qff6 Bg2 Bb1 Bb7 Bc2 Bc8 Bb1 Qe8+ Kg7 Qg6+ Kh8 Raa3 Na2 Qf5 Bd2 Rdb3 Nh3 Ng3 Kg7 Rc1 Ng1 Nf1 Bc2 Rcb1 Nc1 Raa1 Bde1 Qfe4 Qg4 Qg2 Bh7 Rd3 Qg3 Qge4 Qg5 Qg6+
K7/RN1qp1p1/2q1b2P/nq1BQ3/2k1N2N/n4b1Q/1p1r1BRb/R1rN1q2 b - - 0 1 illegal: No possible last move
3n4/K1BP3q/N2rr3/Nb4p1/pr5b/QRNB3R/1q1Rp3/bnkRbQ2 b - - 0 1 illegal: No possible last move
5rq1/B2Prk2/1p2bbB1/1q2rn1N/rp1n1KNB/1RN1R1Q1/2Np4/b4Q2 b - - 0 1 illegal: No proof kernel
3rq3/2Np2Qn/BNR5/B1r5/n3BQ2/qPp2p1R/3bbn1K/k2BrQr1 b - - 0 1 illegal: No proof kernel
4B3/1Q1p1kqn/3K3n/N1N2B1q/QpN1bN2/b1R2nPR/1rr1r2p/B3n3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 f5 Kd3 b5 e4 h5 c4 f3 a4 f4 g6 h4 a5 f2 a6 b3 a7 h3 g7 b2 e5 f3 Ke4 h2 Kd5 d3 c5 d2 e6 Qe7 c6 Bb7 Na3 b1R Nh3 Rb2 Qa4 d1Q+ Bd3 f1N Nf4 f2 Nc4 Qh5+ Bf5 Nd2 Na5 f1N Ra3 Ne4 Rh3 Ng5 g3 Nh6 g8N Qg7 Nf6+ Ke7 Be3 Nd2 Ne4 Ndf3 Rc1 Na6 Bd4 Nh7 Rc3 Re8 a8N Nc5 Nb6 Nd3 Nbc4 Nde1 Kc5 Rc2 c7 Rb8 c8Q Bd5 Nf2 Be4 Qb7 Re2 N2d3 Ke8+ Kb6 Ba3 e7 Kf7 Kc7 Rhf8 Be5 b4 Kd6 Rbc8 Rc1 Rc5 Ba1 Rfc8 Rc3 Re5 Ne3 Rc4 Nc5 Rb2 Rb3 Rcc2 Nec4 Bd3 Rc3 Ree2 Rb3 Be4 Rd3 Qhg5 Rc3 Qh5 e8B+
2bNB1br/2Bp4/1N1pQ3/4brbn/NpQP2K1/B2qk2n/N4q2/4qRR1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 Qe2 axb4 Qd3 Ra5 Qd4 Ra8 Qd6 cxd6 Ke2 Kf7 Kf3 Kf6 g4 Ke5 a4 Kd4 c4 h5 f6 e5 a5 b5 c5 h3 c6 h2 f7 b3 c7 b4 g5 h4 a6 e4+ Kg4 b2 f4 e3 f5 h3 a7 e2 f6 e1B g6 Bh6 f8N Qe7 f7 Bf2 g7 Bf4 Be2 Be5 Nc3 b1Q Na4 Qf6 Ba3 Qd3 Rf1 Na6 Ne6+ Ke4 f8B Be3 Bd1 Nc5 Ne2 Qf2 Nd8 Bg5 Rhg1 h1B Nc1 h2 Na2 Ne6 Be7 Nf4 Bc2 Rb8 a8N Rb5 N8b6 Nh3 Bb3 Kd4 Bf7 Bd5 Be8 h1Q Bf6 Qb1 d3 Ke3 d4 Qd3 Be7 Qhh2 Bf6 Qe1 Be7 Qhf2 Bf6 Ne7 g8Q Ng6 Qe6 Ngf4 Be7 Nh5 Bf6 Ba6 c8Q Ra5 Qc4 Bc8 Nb7 Rb5 Bd8 Rc5 Bc7 Rb5 Qg6 Bg8 Qh6 Bg7 Qg6 Rf5 Qge6+ Be5 Nd8
6nr/2qp1Q2/Rb1pn2q/k1nK1np1/3B4/3QbNP1/2rRBBN1/1B3r1R b - - 0 1 illegal: No possible last move, all moves rejected
2nbkqrb/1Brp4/2pN2rR/1N2pN1R/R1P5/1Q2K1nn/R2B2Qn/1q6 b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 d4 e5 d5 b6 Nf3 Ba6 Ng1 Be2 Qd2 Bg4 Qd1 Be6 dxe6 Ra4 Qe2 Ra7 Qd1 Ra8 Kd2 h5 c4 b5 a4 e3+ Ke2 b3 f4 h3 g4 b4 a5 h4 e7 b2 g5 b3 f5 h2 g6 h3 f6 Ra6 g7 Nh6 g8R Nc6 Bd2 Ng4 Ra2 Na7 Rg6 Rg8 Qc2 Nc8 Kf3 e2 Nc3 b1Q Bg2 e1B Nge2 b2 Nb5 Bg7 Qb3 Bh4 Ned4 Bh8 Nf5 Rc6 a6 Rd6 Rc1 h1N a7 h2 a8Q Nhf2 Rh1 Nh3 Rh6 Re6 Ke2 Rd6 Bb7 c6 Qa7 Re6 Qf2 Bg5 Qg2 Rd6 Rc1 h1N Ra4 Re6 Rc2 Nh2 Kd3 Bh4 Ke3 Ng3 Rh5 Qc1 Rh6 b1R Rca2 Ra1 Rh5 Qb1 Rh6 Kf7 e8N Kf8 f7 Reg6 Nfd4 Ke7 Ned6 Qf8 N4f5+ Kd8 Rc2 Ra3 Ra2 Be7 Rb4 Ra7 Rba4 Bef6 Ba8 Rc7 Bb7 Qe8 f8R Be7 Rf6 Qf8 Rf7 Bef6 Rfh7 Be7 Nf7+ Ke8 Rh5 Bh4 R7h6 Bd8 N7d6+
3Qq3/KQp1qR1n/1prq2Q1/pk2b1Qb/B7/3nPN2/8/rqBR1NRn b - - 0 1 illegal: No proof kernel
1q2n1K1/1NpnqQp1/5p2/3r1BkP/B3b3/3Q3n/BB1bb1R1/rR2bNN1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kf6 h4 b5 a4 f3 Ke3 b3 Kf4 b4 d4 b2 a5 g3 e5+ Kg6 d6 b3 e6 g2 Ke5 f2 d5 Na6 d7 Rh7 d6 Nf6 e7 Nb8 e8B Ba6 Ra2 Be2 Nd2 b1Q a6 b2 Qb3 Qe7+ Qe6 Rh6 h5+ Kg5 d8N Rg6 Bb5 Ne8 a7 f6+ Kd5 Nd7 Ba4 Qc2 Qg8 b1B Nb7 Qb2 Qf7 Rd8 a8B Bbd3 Nc5 Qb8 Bb2 Bc2 Nb7 Be4+ Kd4 Bb5 Be2 f1N Bg4 Ne3 Nf1 Be2 Bh3 Nd1 Bf5 Nb6 d7 Nf2 Rh2 Nh3 Ra1 Qa3 Rb1 Bb4 Qa2 Be1 Qf7 Rc8 d8Q Qe7 Qd6 Nd7 Qa6 Rd8 Qd3 Bd5 Na5 Be4 Bd5 Bd2 Nb7 Kf4 Nf3 g1B+ Rf2 Bh2 Ba2 Rg1 Rg2 Bg3 Kc4 Rh1 Ng1 Bge1 Bg4 Bh7 Kd5 Kg5 Bf5+ Bg4 Qg8 Bf2 Nh2 Bb4 Ne2 Qf8 Ke6 Nb6 Rbg1 Bd2 Re1 Qc5 Kf7 Rd5 Be6 Be4 Bf5 Nd7 Qf8 Bh4 Kg8 Qe7 Qf7 Rg1 Ra1 Rc1 Nf1 Bhe1 Rh2 Bgf3 Ng1 Be2 Rf2 Rcc5 Rd1 Rc1 Rh2 Ra1 Rb1 Qb4 Rf2 Qe7 Rg2+
4R1Q1/1PnN2qb/qQ2BBk1/2r2r1q/n1B1q3/2bpNRp1/2nQ3p/1B5K b - - 0 1 illegal: No proof kernel
1Bb2QR1/BP2rN2/b2r1bRq/KN5R/4qbpB/Qk2p3/2qpB3/1n1n4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Ke6 f4 Kd5 b4 e5 b6 g5 h5 a5 f5 g3 b5 d3 Kc3 g4 h6 e3 b7 e4 f6 a4 f7 d2 b6 e2 h7 e1Q Ba6 a3 Rh4 g2 Nf3 g1Q Kb3 a2 Ka4 Nc6 b8Q Qh2 b7 Bd6 f8B Qb6 c3 Ne5 Qa7 Nf6 Bb2 Nd3 Bb5 Bf4 Na3 Nf2 Be7 Rd8 h8B e3 Rh6 Qeh1 Qf1 Nd1 Rg6 Ne4 Ng5 d6 Rc1 a1B c4+ Kc5 Bbg7 Bf6 Nf7 Re8 Bd8 d5 Qa6 Qe6 Ka5 d4 Bc7 d3 Bb8 Kd4 c5 Re7 c6 Nec3 c7 Nb1 Rc5 Qee4 Rh5 Kc3 Bh6 Kb2 Bg5 Kb3 Bh4 Qe2 Bg3 Qh4 Qf3 Qg5 Bh4 Qh6 Qa7 Nb2 Ba6 d1B Nb5 Qc2 Qc5 d2 Qa3+ Kc4 Qf1+ Be2 Qf2 Nd1 Ba7 B6g5 Be5 Bf6 Qf3 Be6 Qf2 Rd8 Qf1 Rd6 c8R+ Rc6 Rf8 Bc8 Beb8 Rd6 Re8 Bh2 Qf5 Bf4 Reg8 Bd3 Qd7 Be2 Qe8 Bf1 Qf8 Bd3 Qc1 Kb3 Na3 Bc4 Bb5 B4e6 Bd3 Bc4 Be2 Ba6 Nb5 Na3 Qa1 Nb1 Qa3+
4nqRB/NP1rN1b1/nn1QpQ2/1Rnbb1q1/6R1/KB4R1/pr3kp1/5B2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Ke6 c4 Ke5 Kc2 d5 Kb3 g5 b6 a5 f3 g3 b7 d3 c5 Kd4 h5 a4+ Ka3 e3 b4 g2 c6 g4 b5 g3 c7 e2 h6 e1N f4 d2 b6 Ke3 f5 d4 h7 d3 f6 e6+ Ka2 a3 f7 Ra7 Kb3 a2 Ne2 g1B Nec3 Bg7 f8R Na6 b8R Nf6 Rh3 Ne8 Nb5 Qg5 N1c3 Bh2 Rg8 Kf2 Bb2 Bb7 c8B Bd5+ Ka3 Rd7 Bb7 g2 Rb1 Bhe5 Rg3 Bef6 Na7 Be5 Qa4 d1N Qb4 d2 Qd6 Nd3 Rd8 Bf3 Nd5 Ne3 Ne7 d1Q Bd5 Ndc5 Bb3 Nd5 b7 Nb6 Rg4 Bd5 Rc8 Qf3 Ba1 Nca4 Rc3 Qf8 Rcg3 N4c5 Bc2 Bef6 Rb5 Be5 Bb3 Bh6 Rg6 Rg8 h8Q Bhg7 Qh4 Rh8 Bc3 Rh5 Bb2 Qgf4 Qf6 Rh1 Bd3 Rb1 Bc3 Rb2 Bf1 Bh8 Rg8 Bg7 Qh4 Qg5 Qh6 Bf4 Bf6 Be5 Qh4 Bh6 Bh8 Bhg7 Qh6 Rc2 Qg6 Rb2 Qf6+
q1k2r1R/qpn1Q1N1/BrQB4/r1Rp1bn1/5B1n/5N1p/2PB2nK/b6R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 f4 d5 Kf2 Kd7 g4 h5 Kg2 e5 a4 b3 g5 b2 a5 e4 f6 e3 f7 h3+ Kh2 d3 a6 h4 a7 d2 f5 e2 f6 e1N g6 Na6 g7 Ne7 g8R Nf5 Nf3 Nc7 Na3 b1R Nc4 Rb6 Ra5 Bg7 f8B Ng2 f7 Ba1 Qe1 d1N Ne3 Nf2 Ba6 Ne4 Bd6 Ng5 f8B Qe8 Bh6 Kd8 Rg7 Rf8 Rg8 Be6 Bd2 Kc8 Rh8 Qa4 Kg1 Bd7 Rc5 h2+ Kf1 h3 Kf2 Ne7 Kg3 Ng6 Nf5 N6h4 Ng7 Bf5 Qe7 Qa5 Rf1 h1Q B2f4 Rb8 a8Q Qg1 Re1 Qd4 Rh1 Qda4 Qa7 Ra8 Kh2 Qe8 Be2 Qa2 Qa4 Ra5 Bd2 Qc4 Qc6 Qa6 Qf7 Qe3 Qe7 Qa8 Ba6 Rb4 Rc4 Qea7 Rc5 Rb1 B2f4 Rb6 Bd2 Nf7 Bhe3 Ng5 Bef4
5N1K/1prbqRR1/1nBQp2n/6Qp/3B1Pr1/7k/1RB3rb/qNBr3n b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 h5 Kd4 c5+ Ke5 h3 a4 c4 g4 h2 f4 e6 d4 c3 g5 e3 g6 c2 a5 e2 g7 e1N d6 b3 a6 b2 d5 Nh6 g8B Qc7 Kf6 Qc6 a7 Nd3 Nh3 Qc7 Bh7 Nf2 Ra2 Rg8 Rg1 h1Q Bg2 Rg4 Ng5 Qd8+ Kg6 Qe7 Qd3 Kd8 d7 Bg7 Qa3 Bd4 Qd6 Bb6 Bf3 Bd4 Rg2 Qf1 Rg3 Nh1 Be4 Bg1 Bg2 Qe8+ Kg7 Qe7+ Kh8 Bh2 Bg6 Qa6 Nh7 Qa3 Nf8 Qa4 Be3 c1R Bc2 Rg1 Bf3 Rg2 Bc1 Qa5 Be2 Qe1 Bb5 Qd1 Bc6 Qf1 Nc3 b1R Rb2 Qa6 Re3 Qa1 Rg3 Rh4 Rg7 Rhg4 Bd2 Rd1 Nb1 Na6 Be3 Nc5 Bc1 Na4 Rf7 Rb8 a8R Nb6 Ra3 Ra8 Rg3 Ra5 Qe5 Rc5 Qg5 Kc7 d8B+ Kd6 Qf5 Rc4 Qg5 Bd7 Bc7+ Kc5 d6+ Kd4 Bb8 Rc5 Ba7 Rc3 B6a4 Rc7 Bc6 Rgd2 Rg2 Ke3 Rg3+ Kf2 Rg1 Be8 d7 Re2 d8Q Bd7 Rg2+ Kf1 Rg3 Rg2 Qb8 Na8 Bd4 Nb6 Re3 Kf2 Re1+ Kg3 Rg1 Rc8 Qd6 Kh3 Re1 Rc7 Re5 Na4 Ref5 Nb6 Rg7 Qf7 Rf6 Qe7 Rff7
4kr1Q/Np3rBp/R2PqrRb/4Qq2/4p3/3RB3/b1K2Bnr/N1n3bB b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 a4 e5 d4 c5 Kd2 e3+ Kc2 e2 g4 e1B f4 e4 f5 c4 d6 h3 g5 c3 d5 h2 d7+ Kf7 a5 Bf2 a6 Nf6 a7 Na6 g6+ Ke7 g7 Ng4 g8R Nc5 Ra6 Qb6 d8B+ Ke8 f6 Nb3 Rg6 Qe6 d6 Bh6 Ne2 Bg1 Qd4 Rf8 Bb6 Rf7 Be3 Nc1 Nd2 Rb8 a8Q b3+ Kb1 b2 Qe5 Bd7 Kc2 b1R Bg2 Bc6 Bf3 Bd5 Nd4 Ba2 Nc6 Rc8 Nb3 Rb2+ Kd1 Rf2 Na7 Rd8 Na1 c2+ Ke1 Rf1+ Kd2 Rb8 Bg2 Rf4 Bf2 Ne3 Bf3 Ng2 Bbe3 Kd7 Kc3 Rh8 Qg8 Rf5 Qg7 Rf8 Qh8 Ke8 Bh4 Bf2 Rd1 h1R Rd3 Rh2 Bg3 Bg1 Bgf2 Nf4 Bh1 Ng2 Be1 Nb3 B1f2 c1Q+ Nc2 Qd1 Na1 Qf3 Kc2 Nc1 Qb2 Rg7 f7+ Kd7 Be1 Rf6 B1f2 Qff5 Qc3 Rfg8 f8B Ke8 Qc5 Rgf7 Bg7 Rgf8 Qe5
2B2kB1/Npr4p/rP1N2N1/1qqR4/n3QQK1/1bQ3p1/1r1R3r/2b1nNn1 b - - 0 1 illegal: No possible last move
Nb1q3r/1pn1p2n/4P1Bq/qB4Q1/p2NkB1Q/r2b4/B2R3n/1R1R2Kn b - - 0 1 illegal: No proof kernel
1bbBR1q1/P1q2rB1/q1B1q3/3Q2Np/1n6/kp3p1r/n2QQ2n/1Q1RK2N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 e4 Kd6 a4 f5 g4 c5 a5 b5 g5 c4 a6 f3 g6 f2+ Ke2 c3 a7 f4 g7 f3+ Kd3 c2 Kd2 b3 Bb2 c1N Rh2 h3 Nc3 b4 Nge2 Nc6 Ng3 Nf6 g8Q Na2 Nh1 Ng4 Qb1 Qc7 Bb5 f1Q Re2 h2 Qf7 Qh3 Ke1 Bg7 Qf4+ Be5 Qd2 Qh6 Ba4 Qe6 Bb5 Bf4 Ba4 Rb8 Re3 Rb7 e5+ Kd7 d6 h6 Ba3 b2 d5 b3 Ne4 Qg8 Ng5 Qe6 Qbd1 b1Q Bb2 Qbg6 Qb1 Qgg8 Bc3 Kd8 d7 Ke7 Bb5 Ncb4 Re4 Qa6 e6 Kd6 d8Q+ Kc5 e7 Rh7 e8Q Rf7 d6 h5 Nf2 h1Q+ Bf1 Qh3 d7 Rb8 Bb5 Nh2 Bg7 Qhe6 Bc6 Rb5 Nh1 Ra5 Re2 Ra4 Qg6 Kc4 Rd1 Be5 Qd5+ Kc3 Re3+ Kb2 Qb1+ Ka3 Re4 Qcb6 Re3 Bb8 Re2 Qbb7 Q8a5 Qc7 d8B Rf4 Qd2 Rh4 Qe5 Rh3 Qed7 Ra5 Q7d5 Rc5 Qee3 Rc4 Qf2 Rf4 Re3 Rf7 Qfe2 Qf6 Re7 Qe6 Re8
4N1rQ/PNb3n1/pq2n1pN/QQ1K4/r2pQb1n/6R1/BBR2k2/2q1b2b b - - 0 1 illegal: No proof kernel
3R1N2/pb6/P6n/RN1nbQ1r/B1NN3k/6q1/pR2bp2/1bQrqrBK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 a5 exf4 Qa4 bxa4 Kf2 Ke7 b4 Kf6 g4 Kg5 Kg2 h5 d4 c5 e4 f5 b5 c4 a6 c3 b6 c2 b7 a3 d6 Qc7 d5 Qh7 d7 Qg7 d8N Bd6 e5 Nd7 b8Q Nh6 e6 Nf6 e7 Be5 e8N Bb7 Be3 c1Q Nd2 Qe1 Rh2 h3+ Kh1 Kh4 g5 f3 d6 f4 d7 Nd5 g6 f2 Nc4 f3 Qc7 Rf8 Ne6 Rd8 Be2 f1B Bd1 Be2 Ned6 Rf5 Rg2 h2 Ba4 Rdf8 d8R a2 Rd1 Rh8 Nf8 Rf4 Rb1 Rd4 Qc5 Rd1 Rg5 Qg8 g7 f2 Rb2 Rh7 Bf4 Rh8 Nb5 Rh7 Kg2 h1B+ Kh2 Bg2 Qe3 Bgf3 Qc1 Be4 Rf5 Bb1 Kh1 Qe6 g8Q Qg6 Qe6 Qg3 Rc8 Kg4 Qf7 h4 Rd8 h3 Rg5+ Kh4 Qf5 Bc3 Bc7 h2 Bd6 Be5 Bc7 Nf7 Bd6 Rh5 Bb8 Bf1 Ne2 Nh6 Bc7 Qgc3 Ned4 Be2+ Kg2 h1R Bd6 Bh8 Bh2 Rf1 Bg1 Be5 Kh1 Qa3 Rg3 Qd6 Ra3 Qb8 Bc2 Qd6 Ra5 Qg6 Bb3 Qg3 Ba4
Q4qR1/ppqrN3/1NQRnB1b/2B1r2n/P1b2R1K/1k6/Qp2Q3/2b2br1 b - - 0 1 legal: proof: d4 c5 b4 cxb4 g4 e5 dxe5 f5 g5 f4 g6 f3 Bg2 fxg2 Bb2 hxg6 Ba3 g5 Bc1 g4 a4 Kf7 f4 Ke6 Kf2 g5 Kg3 d5 c4 b3 h4 d4 e4 b2 h5 d3 c5 d2 f5+ Ke7 f6+ Ke6 c6 Nh6 f7 Qd7 c7 Ng8 h6 Qc6 h7 Na6 Ne2 g1B Rh4 Be3 Nbc3 Nf6 Nd5 Bh6 f8R Nc5 Qb3 d1B Nec3 Be2 Rg8 Bc4 Nb6 Qd7 Qa2 Nh5+ Kg2 g3 Kh3 g2 Ncd5 g1Q Ne7 Qd6 Rf4 g4+ Kh4 g3 Bd2 g2 Rd1 Bd7 c8Q Qf1 Qc6 g1R Bb4 Bc1 Rd4 Rf8 Rd2 Rf5 Rd3 Kf7 e6+ Kf6 Rd2 Qc7 Rd6 Ke5 Ba3 Bd5 Bb4 Kd4 e5+ Kd3 Ba3 Kc2 Bb4 Bc4 Ba3 Nb3 Bc5 Be8 Rg3 Rg8 h8B Nd4 Bf6 Rg7 Rgg4 Rf7 Rg8 Rfg5 Ng6 Bd7 e7 Bh3 e8Q Rd7 e6 Re5 e7 Ne6 Qa8 Qf3 e8Q Bhf1 Qa1 Kb3 Ne7 Qg2 Qb1 Qg7 Qa1 Qf8 Qa2+ Kc2 Qg6+ Kc3 Qg4 Kc2 Qe2+ Kc3 Qb1 Kb3 Qa2+
rB4q1/1B2K3/2b3kb/4n1NP/3pb3/p1bB1QBR/2np1QQ1/N2b1bRr b - - 0 1 illegal: No possible last move, all moves rejected
q3QK1R/1kQB4/p5r1/1b3n2/N1BPrb1p/pR1nn3/1n1NBQ2/1n3nB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 f5 b4 h5 e4 f3 d4 c4 g4 h3 g5 h2 d6+ Kb7 g6 h4 b5 f4 b6 c3 d7 a3 Ke6 a6 Kf7 c2 g7 f2 e5 f3 e6 Ne7 g8B Rh6 Nd2 Nf5 e7 Nc6 e8B Ne3 Qe1 Rg6 Ne2 Bd6 Nc3 Na5 Bd3 f1N Na4 f2 Rb1 Nac4 Rb3 Bf4 Rg1 h1N Kf8 Nb2 Be2 Nhg3 Bgc4 Ngf5 Rg5 Rb8 Rh5 Ra8 Rh8 Rb8 Ne4 Nd2 Qf1 Nb1 Nd2 Ra8 Qe1 f1N Qf2 Qc7 d8Q Qb8 Qe7+ Bd7 Qd8 Bb5 Bd7 Ra7 Qe8 Qa8 Nf3 Ng4 Be3 c1N Nd2 Ncd3 Qg3 Re6 Bg1 Nge3 Qf2 Re4 Bc8+ Kb8 b7 Kc7 Nc5 Kb6 b8Q+ Rb7 Qbe5 Rg7 Bd7 Rg6 Na4+ Kb7 Qc7+
Q1Br3R/1RK1B2n/pP2q1k1/RpQN2p1/5nnb/2r2R1b/nN4n1/3nB3 b - - 0 1 illegal: No proof kernel
3q1bQ1/3b1pNb/1br5/2P1b1np/1N5K/Qnk1Bb1Q/Bp3Q1r/1RN2R2 b - - 0 1 illegal: No proof kernel
K3nn1b/3pR1nB/1NQQn3/B1b1n1Bk/4n2p/4Qr2/3Np1qP/r1B1R3 b - - 0 1 legal: proof: d4 f5 g4 c5 e4 cxd4 f4 fxe4 f5 b6 b3 Ba6 b4 Bc4 b5 Be6 f6 Bf5 gxf5 a6 Qg4 axb5 Qd1 b4 Kd2 Kf7 c4 e5 a4 g5 c5 h5 a5 d3 Ke3 d2 c6 b3 a6 g4 c7 g3 c8Q b5 a7 b4 Ra4 b2 Bh3 b3 Ne2 g2 Nd4 g1B+ Ke2 e3 Kd3 e4+ Kc4 h4 Kb5 e2 Qa6 e1N Ra2 e3 Nc6 e2 Bg2 Nd3 Ra3 Nc5 Ra2 Bd4 Ra3 Ne6 Nc3 b1N Nb4 b2 Re1 Bfc5 Ne4 Ne7 Nd5 Ng6 Re3 Ngf8 Nb6 Nc6 Qa3 Ne5 Ka6 Nc3 Kb7 b1N Qdb3 d1N Nd2 Nb5 Be4 Nc7 Qab4 Rc8 a8Q Ne8 Ka7 Rh5 Qc6 Nbc3 Bc2 Ra8+ Kb7 Be7 Qbd6 Ra1 Qba3 Qc7+ Ka8 Ne4 Bd3 Rg5 Bb1 Rg3 Bc2 Kg8 f7+ Kg7 f6+ Kg6 Bb1 Kh5 Bd3 Nef2 Bh7 Rf3 Re4 Ne3 Qa7 Nfg6 f8B Nf5 Bh6 Ngf8 f7 Nfg7 Bg5 Bc5 Qa3 Bf6 Re3 Ne4 Qa7 Nfg6 f8B Qc8+ Qb8 Qa6 Qbd6 Qc4 Be7 Ngf8 Bd8 Qd4 Nc8 Qd5 Ba5 Nf5 Nb6 Bh8 Qa6 Nfg7 Qd3 Nc3 Qd4 Qe4 Qd3 Qg4 Re4 Qh3 Qe3 Qg2 Rf4 Ne4 Rf7 Qf1 Re7 Qh3 Nc8 Qg2 Nb6
RB1b2n1/r1p1nBR1/npprn3/7K/R3n1Q1/2N3Pb/N1n3B1/R2Qq2k b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 a5 h4 gxh4 b4 axb4 c5 Nh6 c6 dxc6 Qb3 Ng8 Qa4 Kd7 Qd1 Ke8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 d4+ Ke4 a4 h5+ Kg5 e5+ f6 h3 f4 h2 a5 b3 a6 b2 d5 h4 d6 h3 g3 Ra7 d7 Be7 f5 Rh6 Qh5 Qe8 Ne2 Bd8 Be3 Qe7 Rg1 h1N Nc1 h2 Na2 Nf2 Qh3 Kf3 Nbc3 Rg6+ Kh5 b1N f7 h1N f8R e4 f6 Nd3 Rf7 Nc5 Rg7 Nf2 f7 Ne6 f8R+ Rf6 Bd4 e3 Bc5 Ne4 Qg4+ Kf2 Bb6 Qb4 Rh1 Qe7 Rh4 Kg1 Bc4 Kg2 Re8 e2 Be3 N6c5 Bf7 e1N Bf2 Rd6 Bg1 Ra8 a7 Nba6 Rf8 Ne6 Re8 Rb8 a8B Nc2 Ba7 b6 Bb7 Ra8 Bb8 Ra7 Rf8 Ncb4 Re8 Nd5 Rf8 Na3 Re8 Nac5 Ba6 Nc2 Bf1+ Kg1 Rf8 Na6 Re8 Qf6 Rf8 Qf2 Re8 Qe1 Rf8 Bf6 d8Q Bg5 Qd7 Bd8 Qd1 Nde7 Rf4 N4g5 Ra4 Ne4 Qg4 Kh1 Qd1 Ne6c5 Q7g4 Ne6 Qge2 N6g5 Re8 Bh3 Qg4 Ne6 Rf8 Nd5 Re8 Be7 Rc8 Rb7 Ba7 Bd8 Ra8 Nde7 Bb8 Ra7 Bg2+
2bN4/Rpb3nK/1Q3r2/NNRPRQb1/4n2k/3rqp1R/2B1p2b/2B1b1b1 b - - 0 1 illegal: No proof kernel
b1Nb3q/p4nrP/2kRKp2/bbN2B2/1Rn1R3/2BQrNQ1/1b5p/N3b3 b - - 0 1 illegal: No proof kernel
1B1R2R1/1knbK3/5r1p/B2NR1q1/2r1pBn1/2pbQ1P1/N1Q1n3/3Bbb1n b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 b5 f4 c4 a4 e3 d4 h3 g3 h2 f5 e5+ f6 e2 a5 e1N d6+ Kc6 a6 b3 d7 b2 a7 b4 d5+ Kb7 d6 e4 Ra5 b3 Bf4 Ng2 Nc3 b1B Nge2 b2 Nd5 Na6 Nec3 Nc7 Na2 Nh6 Qc2 Ng4 Be2 c3 Bd1 Bh6+ Kf5 Rf8 f7 Bg5 Rf1 h6 Kg6 Qe7 d8B h1N d7 Rb8 a8R Qe5 Bf6 Qe7 d8B Bd7 Bd4 Rc8 Ba7 Qc5 Bb8 Qb5 Qf2 Bd3 Qe3 b1B Rf2 Qc5 Rd2 Bf1 Rd4 Bbd3 Kg7 Re8 f8Q Re6 Kf7 Qb5 Qa3 Rf6+ Ke7 Qc5+ Bd6 Qb5 Qb2 Nf4 Qc2 Ne2 Be5 Ne6 Bf4 Rc4 R5a6 Nc7 Re6 Na6 Ba5 Nc7 Bd6 Qc5 Re5 Qb5 Ba7 Qc5 Rg8 Qb5 Bb8 Qc5 Qf3 Bd2 Qe3 Be1 Re6 Qb6 Bf4 Qa6 Re5 Qe6+ Kd8 Qf5 Ke7 Qg5 Ndb4 Bc8 Rdd8 Bd7 Nd5
nR3b2/2QNk3/1bb1B1Kp/RpP2nB1/Qb6/1q2N1pR/2n2r1n/1r2BR2 b - - 0 1 illegal: No proof kernel
2n5/1B1N1NR1/1P6/rpr3RQ/1q1bB3/RbnBpr1n/4QnpK/2r1Bk2 b - - 0 1 illegal: No possible last move, all moves rejected
N2R2B1/k4nbR/PNr1bQ1Q/3p3N/1K6/BQp2nNp/3qbn2/5brn b - - 0 1 illegal: No proof kernel
2Q1b2k/1B1q1R2/p2Q1n2/KpPNnnr1/3r1nQR/4rr1p/1b1B2B1/1N2Q3 b - - 0 1 illegal: No possible last move
r3NN1b/1B3B1K/pb2n1p1/rNp1R2Q/R4Qn1/Pb4Q1/2Q1n3/q2kbn2 b - - 0 1 legal: proof: e4 f5 g4 fxe4 b4 c5 bxc5 h5 Qe2 hxg4 Qf3 Rh7 Qd1 Rh8 c4 d6 c6 Rh4 c7 Rh7 c5 Nc6 Ba3 Nb8 c6 Rh8 Bc5 dxc5 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 h4 b5 d4 g6 d5 e3 d6 e2 d7 e1B Nc3 b4 Qc2 b3 Nb5 b2 Nd6 b1N Ne8 g3 Nf3 g2 Nd4 g1N Bc4 Nh6 Bf7 Ng4 Nb5 Bg7 f3 Bb7 c8Q Na6 c7 Bd5 Qb8 Bb3 c8B Nc7 Bb7 Ba5 a3 Qc8 d8Q Bb6 Qdd3 Nd2 Re1 Nf1 Re4 Rf8 Ra4 Bh8 Rh2 Qd7 Re2 Qd4+ Re4 Qa1 Re5+ Kh6 h5 Ne2+ Ke4 a6 f4 Ne6 f5 Kg5 h6 Kh4 Qdd6 Kg3 f6 Kf2 h7 Ke1 Qdd2+ Kf2 Qf4+ Ke1 Ned6 Rd8 Ne8 Rd4+ Kf3 Bg7 h8Q Rc4 Qh1 Bh8 Qh5 Rb4 Nbc7 Rb5 Ke4 Ra5 Nb5 Ba2 Bg8 Bb3 f7 N6d4 f8N e6 Rg5 e5 Bf7 Ne6 Qd6 Ra7 Qdd3 Ra8 Qdg3+ Nf2+ Kf3 e4+ Kg2 e3 Kf3 Bc7 Re5 Bb6 Qb2 Kd1 Qc3 Nh3 Kg4 Nf2+ Kh4 Ng4 Qb2 Ng1 Qbf2 e2 Qfh2 Ng7 Kg5 e1B Qb2 Ne2 Qa2 Ngh2 Kh6 Ne6 Kh7 Ng4 Qc2+
5b1r/Q1K5/p1nnprqn/PQ2Q1r1/2pNB3/2r1BRR1/Bb1k2B1/2Nn4 b - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 gxf4 h3 b5 g5 Bg4 hxg4 bxc4 Kf2 Kd7 d4 Ke6 b4 Kd5 a4 c5 b5 h5 g6 f5 a5 h4 g5 f3 Ke3 a6 Kf4 c3 g7 f2 g6 h3 b6 h2 b7 e3 Qe1 c2 Ra2 e2 Nc3+ Kc4 Ke5 Kd3 d5 f4 d6 f3 d7 Qb6 Nb5 Nh6 Bg2 f1R g8B f2 g7 Qg6 Be3 c1B Bh7 Bb2+ Nd4 Nc6+ Kd5 Re8 b8Q Rc8 g8B Rc7 Qa1 e1R d8Q Rc1 Qa8 Rc3 Qdb8 Rb7 Nge2 Rb5 Rg1 h1N Qbb7 Ng3 Ra3 Ngf5 Qba7 Nd6 Qe8 Rc1 Bf7 Rc2 Qe1 f1N Qg3 Rc1 Qe5 Ra1 Nb3 Re1 Ned4 Re2 Qeb8 Rf2 Bfg8 Rf6 Qbb7 Nh2 Rf1 N2g4 Rf3 Nf2 Bf7 Rb4 Be6 Nd1 Qb5+ Rcc4 Rg3 Kc3 Nc1+ Rb3 Bf2+ Kd2 Bf7 Rbb4 Raf3 Rc3 Be6 Qg5 Be4 Qg6 B6f5 c4 Be3+ Ke1 Kc5 e6 Kb6 Rbb3 Kc7 Rb4 Qbb7 Rb5 Bb1 Rd5 Bfe4 Rc5 Ba2 Rd5 Bg1 Kd2 Qb5 Rc5 Qh5 Rg5 Bf2 Rg4 Qhe5 Rg5 Be3+
r1bb1r2/RN1Rn1Bp/B2BR3/1n3k1N/2Q5/1rPKQqrn/n1p2p2/6R1 b - - 0 1 illegal: No proof kernel
1rB1Q1b1/2NnB1p1/3Q1RQ1/R1Br3r/1b3pq1/N5Bb/Kp2n1rP/6bk b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Ke7 a4 Kf6 d4 Kg5 Kd2 Kh4 Kc2 f5 Kb2 c5 e5 b5 e6 b3 e7 b4 e8Q c4 d6 g3 d7 g2 d5 f3 a5 f4 a6 f2 a7 Ne7 d6 Nec6 Ra6 c3+ Ka1 c2 Kb2 Qg5 d8B Bh3 d7 Nd4 Be3 c1R Qf7 Rc2+ Ka1 b2+ Ka2 Rh5 Rf6 Ne2 Be7 Qg4 d8B Nd7 Qg6 Rb8 a8Q Rcc5 Qd2 Rcd5 Na3 b1R B3c5 Rb3 Qc6 Rbd3 Qd6 Rg3 Qe3 b3+ Ka1 b2+ Ka2 Nd4 Ne2 g1B Nc3 Rg2 Ba6 f1B Bc8 Be2 Ncb5 Bc4+ Qb3 Ne2 Nc7 Rd2 Qe8 Bg8 Qbf7 Rdd5 Qfe6 Qg6 Q6f7 Kg4 Qfe6+ Kf3 Q6f7 Qg4 Qg6 Be3 Rc1 Kf2 Rc4 Kg1 Ra4 Kh1 Ra5 Bg1 Rf7 Bh7 Bh4 Bg8 Bg3 Be7 Rf5 Bf6 Be7 Bc3 Rf8 Bb4 Rf6
2qN4/b5p1/1pb3Bn/B3p3/3R1BPK/bk2rbQ1/nBR1n3/1N1R1rQn b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 Qf3 fxe4 Qd3 h4 Qg3 hxg3 f4 Kd7 a4 Kd6 h4 Kc5 d4+ Kd6 a5 c5 a6 e5 f5 b3 f6 e3 f7 c4 a7 b2 h5 c3 h6 g2 h7 e2 Kf2 e1N Kg3 c2 Bf4 c1N Nh3 g1B Ng5 Nf6 Ne6 Ng8 Rh2 Na2 Bd3 Nh6 Bg6 Nd3 Rc2 Nc6 Kh3 Qc7 Nd8 Nf2+ Kh4 Rb8 a8Q Bd7 Qa4 Nh1 Qb3 Qc8 Qg3 Rg8 h8Q Ra8 Qh2 Ra3 Qg3 Re3 Qh7 Ncb4 Qh8 Nc3 Ra4 Nba2 Rb4 Ke7 d6+ Kf6 d5 Ne2 Re4 Bc6 d7 Ba3 d6 Rf8 Rd4 Bf3 Nc6 Ke6 d8B Bf2 d7 Bg1 Ba5 Bf2 Nc3 b1B d8R Bg1 Rd1 Bf2 R8d4 Bg1 Rcc1 Bbe4 Nb1 Bd5 Nd8+ Kd6 Nc3 Kc5 Rc2 Bc6 Nb1+ Kb5 R4d3 Ka4 Rd4+ Kb3 Qh7 Rg8 f8B Rh8 Bfb4 Rf8 Bc3 Re4 Rd7 Ba7 Be3 b6 R7d4 Ng8 Kg5 Bg2 Bb2 Rf1 Bf4+ Bf3 Qhh2 Re3 Kh4 Nh6 Qhg1
rb2R1r1/1nqb1p2/7p/kBN3b1/2Pp2bR/1Q3Q2/n1BBRKn1/2n1N2R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 a5 c4 d5 b4 Kd7 g4 Kc7 g5 Kb6 g6 d3 e5 f3 e6 f2+ Kd2 h3 Ke3 h6 g7 h2 e7 d2 e8R a4 Qc2 d1B Nc3 a3 Bd3 f1N+ Kf2 a2 Nf3 Bd6 Be4 Qc7 Qb3 Nf6 g8B Ne3 Ne1 Nbd7 Bd2 Ng2 Bgh7 Nc5 Re6 d4 Bc6 Nd5 Re2 Bd7 Bc2 Rhg8 Ne4 Nb7 Qf3 Nc3 Nc5 Be5 Rb1 a1B Rb3 Na2 Rbe3 Nf4 Re4 Ng2 Rh4 Bc3 Ne6 Ka7 b6+ Ka6 b5+ Ka5 Nc5 Bd6 Bg5 Bd2 Bf4 Nd8 b7 Bc1 b8Q Nb7 b6 Bd2 Be5 Bg5 Bf4 Be5 Qe8 Bd6 Qee3 Be5 Qb3 Bd6 Rf1 Be5 Bb5 h1N+ Kg1 Ng3 Kf2 Bd6 Rfh1 Be5 Re4 Ne2 Bd2+ Nec3 Re2 Nc1 Be3 N3a2 Bf4 Nd8 b7 Bd6 b8R Nb7 Re6 Be5 Rbe8 Be2 Qg3 Bg4 Qgf3 Qd8 R6e7 Bb8 Re2 Qc7 Bd2+
N1rnb2r/4P2p/3Rbp1N/qNb1b1B1/Bpk1r3/2N5/5RK1/nr1Q1QR1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 a4 Kd6 g4 Kc5 d4+ Kc4 g5 c5 a5 b5 g6 f3 g7 b3 d6 f6 d5 b4 d7 b2 a6 h3 a7 h2 d6 Qa5 d8R Nd7 Qe1 Ne7 g8N Nc6 Nc3 b1R Bg5 Be7 Kg3 f2 Nb5 Rb8 Bh3 f1R a8N Rf4 Ra2 Re4 Kg2 Bf8 Qf1 Be7 Re8 Nd8 Nh6 Bf8 Re6 Be7 Nf3 Bf8 Rg1 h1B+ Kh2 Be7 Nfd4 Bf3 Rb2 Bh5 Kg2 Be8 e3+ Kd5 Rd2 c4 Rf2 c3 Ne2 Nc5 d7 c2 Rd6+ Kc4 Bf5 c1B Nec3+ Nd3 Bg4 Bb2 Bd1 Ba1 Ba4 Bb2 Qe1 Nc5 Qc1 Nb3 Qe1 Nf7 d8Q Na1 Qd7 Nd8 Qf1+ Kc5 Qg4 Be6 Qge2 Rc8 Qed1 Rd4 e4 Bf8 e5 Re4 Qfd3 Be7 Qh3 Kc4 Qhf3 Bf5 e6 Bg4 Ra6 Bc5 e7 Bgd7 Rd6 Be6 Nd5 Be5 Ndc3 Bh5 Qe3 Bg6 Qee1 Be8 Qf1+
6r1/K1p1N2q/1rb2b1B/1B1p1rbr/1P2N1n1/1p4Q1/3QQQ1R/1kR1B1nb b - - 0 1 illegal: No proof kernel
QNk1b3/pQ1qn2b/Pnb3N1/2n1p3/1n1B1R2/K2p3N/1RrQB2r/4Nb2 b - - 0 1 illegal: No possible last move
2qqB3/Nq2pR2/b2N3r/Q1n1Qn1p/Q3qb1P/1Rq1R3/1B1p1kR1/6nK b - - 0 1 legal: proof: d4 b5 g4 c5 f4 cxd4 e4 f5 b4 fxe4 f5 a5 g5 axb4 Nd2 Ra6 Nb1 Rf6 gxf6 Bb7 Ne2 Ba6 Ng1 Bc8 Kf2 Kf7 Kg2 h5 c4 d5 h4 g5 a4 b3 c5 b4 c6 g4 a5 b2 a6 b3 c7 e3 a7 e2 a8Q e1Q Ba6 g3 Ra3 d3 Ra2 d4 Rh3 d2 Qe4 d3 Ne2 Nd7 Na3 b1Q Nb5 b2 Qe5 Nc5 Qa4 d1Q Ned4 Rh6 Nc6 Qc3 Nca7 Qdc2+ Kh1 d2 Ra3 Bg7 Rb3 Bh8 Rh2 Qe4+ Rg2 Qbc2 Bb7 b1Q Bc6 Ba6 c8R Bg7 Bd7 Qb7 Rb8 Qbc8 Rb6 Qe4 Re6 Qeb7 Bc6 Qe4 Bb2 Rh8 Qd5 Bh6 Qe5 Bf4 Qa5 Nh6 Be8+ Kg8 f7+ Kh7 f6 Kg6 Nd6 Nf5 Qd5 Rh6 f8R+ Kh7 f7 Kg7 Re5 Kg6 Qd4 Kf6 Qda4 Kg6 Rd5 Kf6 Rd3 Ke5 Re3 Kd5 Rg8 Ke5 f8Q Kd5 Qd7 Ke5 Rg7 Kd4 Re1 Kd3 Qh8 Kd4 Qda4+ Kd3 Ra1 Ke3 Rf7 Kf3 Qe5 Ke3 Raa3 Kf3 Re2 g2+ Kg1 Ng3 Kh2 g1N Rg2 Nf5+ Kh1 Qcd3 Ra1 Qc3 Re1 Qbc6 Rg8 Q6b7 Re3+ Kf2+ Rg2+
3r1NK1/8/4Bqp1/n2Q2P1/1pQR1rn1/1BBrb2n/p2Rq1Q1/rBr3kN b - - 0 1 illegal: No proof kernel
2Rrb3/1q1bN2K/B2pR1Np/3q1pB1/q2P1b2/1qR1nqQk/7B/3B1r1Q b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Na3 b5 Nb1 b3 c4 b4 Rh3 Nc6 Rh2 Nd4 Rh1 Nb5 cxb5 Ra3 Rh2 Ra6 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 c5 d4 h3 a4 Kh4 Kf5 h2 e4 f6 a5 f3 b6 f2 b7 h6 Kg6 b2 b8B b3 g5 c4 a6 f5 a7 c3 e5 c2 e6 Nf6 e7 Ng4 e8R Ne3 Ra6 Bd6 Nc3 b1Q Nd5 b2 Ne7 Bf4 Ne2 Kg4 Bd2 c1Q Re6 Qc4 Qb3 Rf8 Kh7 Qa4 g6 Qda5 g7 Qd5 Be5 d6 g8B Bd7 Rc8 Rd8 Qc3 Rb8 a8Q Qbd1 Bf7 b1Q Bh5+ Kh4 Rg1 h1Q Rg3 Qbb7 Qa3 Q1b3 Bc1 Bg5 Nf4 Qhf3 Ba6 f1B Bg4 Bfb5 Bd2 Qg2 Bd1 Qgf3 Rh3+ Kg4 Nfg6 Bbc6 Bh2 Bf4 Be1 Be8 Bh4 Bcd7 Bg5 Qa7 Re5 Rb4 Re6 Qab7 Qb2 Rc4 Qf2 Rc2 Qe1 Rf2 Qh1 Rf1 Qb8 Qe2 Rf3 Qf2 Qc7 Qg3 Qc3 Kh3 Qe1 Nc2 Rfe3 Qgf3 Rec3 Ne3 Qg3+
2b3QQ/2K1N1pq/N3rNQ1/nrb1RBk1/p5P1/b1q3N1/2R2rpB/3b1b2 b - - 0 1 illegal: No proof kernel
4q2k/1R1q3q/1r1BB3/1pr1p2N/3b1qbK/1Q1q4/3pPRNN/1n1BbQ1B b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 h3 g5 Bf4 g3 Bd2 Nc6 Bc1 Ne5 h4 g4 Na3 Nf7 Nb1 Ng5 hxg5 Ra7 Bh3 Ra5 Bf1 Ra8 a4 Kf7 c4 Kg7 f4 b5 c5 e5 g6 h5 f5 d5 c6 h4 c7 d3 a5 g2 Kf2 d2 a6 d4 a7 d3 Nc3 h3 Kg3 h2 Ra6 b3 Nd5 b2 Ne3 b1Q Rb6 Bb4 Rb7 Qe8 Ba3 Ne7 Qb3 d1Q Nf3 g1Q+ Ng2 Rh6 f6+ Kh8 f7 Qd4 f8N Qdd7 Nh7 Qbc1 Nf6 Nd5 Nh5 Nc3 Kh4 g3 Rg1 h1Q+ Nh2 Rb8 a8Q Nb1 Qaa4 Ba5 Bd6 Be1 Qf4 Qe3 Qf2 d2 Qff7 Qc2 Qf2 Qcd3 g7+ Kh7 g8B+ Kh8 Bd5 Ra8 Bf7 Ra2 Qf4 Rc2 Bg6 Rc5 Qf3 Qc3 Bc2 Qcd3 Bd1 Rf6 Be7 Rb6 Bd6 Qdf7 Qf4 Bg4 c8B Qc7 Be6 Qcd7 Qf5 Qf3 Ngf4 Qfe3 Rg2 Qee4 Rf2 g2 Qf7 g1B Bg2 Qh7 Bgd5 Q1e4 Bc6 Qed4 Bh1 Q4e3 Ng2 Qf4 Qf5 Qb4 Qf3 Qc7 Qh3 Rc4 Ne3 Qcd7 Qf1 Rc5 Ng2 Qbc4 Kg5 Qce4 Rf7 Bd4 Rf2 Qf4+ Kh4
2K3R1/1Np1p2B/2q2qN1/b2q1Rqb/R2Q3k/2P2r2/q2R2Qp/n1B2nBb b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 b5 Na3 g5 Nb1 Ra6 Qf3 Rg6 Qe2 fxg4 Qd1 g3 Ne2 g4 Ng1 Rg5 hxg5 Bb7 Ba3 Ba6 Bc1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 h4 d4 Kh5 a4 g2 f4 e3 a5 e2 d5 e1Q+ Be3 b3 g6 b2 d6 b4 g7 h3 a6 b3 a7 h2 a8Q Nc6+ Kd5 Nh6 g8R Nd4 d7 Bg7 f5 Bb7+ Kc5 Qf2 f6 Nhf5 f7 Ng3 Ne2 g1Q f8B Qgg2 Nbc3 b1B Qd2 b2 Ra4 Nb3+ Kb5 Bf6 Bfh6 Na1 Ne4 Bc3 Nd6 Ba5 c3 Qf6 Qa7 Bd5 Ka6 Bg6 Bhg5 Qe8 d8R b1Q Qa8 Qge4 Qc6 Qa2 Kb7 Qef3 Kc8 Rh7 Qb6 Qc6 Nb7 Rg7 Bh6 Kh4 Bg2 Bgf7 Rf1 Bh5 Rd7 Q3f5 Be4 Q5e5 Bc2 Bh1 Bh7 Qec5 Rff4 Nf1 Rf5 Qcc4 Rd3 g3 Qd4+ Rg4 Qc2 g2 Bc1 g1Q Bhe3 Qcb3 Nf4 Rg3 Qe2 Qbd5 Rd2 Qgg2 Bg1 Rf3 Qef2+ Qg3 Qg2 Qgg5 Ng6#
1NB1q3/1r6/8/qRbN2pn/B2pN1Q1/1b2BbPK/1Q3q1p/Br1b1Rrk b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 b4 axb4 h5 cxd4 e5 Nc6 e6 Ne5 Ba6 Ng6 hxg6 fxe6 Be2 e5 Bf1 e4 f4 d5 Kf2 Kd7 Kg3 Kc6 a4 e5 c4 h5 g7 b5 f5 h4+ Kg4 b3 a5 b4 c5 h3 g3 b2 a6 d3 a7 h2 Ra5 e3 Ra3 d4 Bd2 Kd5 c6 Ke4 c7 b3 Qc1 e2 Qc3 e1Q Ra5 Bb7 c8B Bc5 f6 Qe8 f7 Rh7 f8B Qf2 Be3 d2 Rb5 d1B+ Ne2 Rb8 a8N Bd5 Na3 b1B Nc7 b2 Nc4 Ba2 Na5 b1R Qb2 Bab3 Nc6 Ra8 Nb8 Raa1 Bh3 Ba8 Rf1 Bb7 Bd2 Ba8 Bc3 Ke3 Bd6 Bf3+ Kf5 Nf6 g8Q e4 Qe6 Nh5 Bf4+ Kd3 Bg2 e3 Nd5 Rb7 Qd7 Be4+ Kg4 Bf3+ Kh3 Ke4 Ng1 e2 Qg4 e1Q Ne2 Qd2 Be3+ Kd3 Qc1 Qa2 Bb2 Qa7 Nec3 Qa5 Ne4 Ke2 Qc3 Bdc2 Rc1 Bd1 Bh1 Kf1 Qd2 Ra3 Ba1 Kg1 Qb2 Ra4 Bg2 Rc4 Bf1 Kh1 Bd3 Rc2 Bc4 Re2 Bd3 Re1 Bc2 Bc4 Ba4 Bcb3 Ndc3 Rg1 Nd5 Bde2 Re1 Bed1 Rf1
n1R3K1/1p3Qn1/1rqkp3/RP5Q/r1NqpB2/nRR1nB2/1rb5/2QN2q1 b - - 0 1 illegal: No proof kernel
2BBNR2/Kb2bpQ1/p7/k2r1B2/P1R1nr1q/2NB1q2/bQp5/1q1b1Rr1 b - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 bxc4 h5 Nd7 Rh3 Ne5 Rh1 Ng6 hxg6 Bd7 Rh5 Be6 Rh1 Bc8 Ke2 Kd7 d4 Kc6 a4 Kb6 b4 c5 d5 h5 b5 e5 g7 c3 g6 e3 Kd3 h4 Kc4 c2 d6 f3 d7 e2 Nd2 e1Q Ne4 f2 Qd4 h3 Qe3 a6 Kd5 h2 Qg3 c4 Bh3 f1B Ne2 c3 Nf6 e4 Bg5 c1R Ne8 c2 Nc3 Ka5 Kc6 e3 b6 e2 b7 Nf6 g8B Be7 b8Q Ne4 g7 Rh4 Bh7 Rf4 g8B Qf2 Qb2 e1Q B7f5 Qf3 Bgh7 Bc4 Bh4 Rd1 Qg7 Rd5 Ra3 Qc1 Rf1 h1B Rb3 Qe1 Rb4 Ba2 Rc4 Qb1 Bf6 Ng3 Bd3 Ne4 B7f5 Rb8 Nd6 Qh8 d8R Qh4 Rf8 Bb7+ Kc7 Rd8 Ne8 R8d6 Bg5 Rg6 Kb8 Bg2 Bf6 Bh1 Ka7 Rg1 Bc8 Bg2 Bhf5 Bh3 Rf2 Bf1 Bg5 Be2 Rf1 Bd1 Rc7 Bb4 Bd8 Be7 Rc4+
1K1B4/Np3b2/N2Rpbpk/qR3q2/1P3nb1/3bnr1Q/1qB1QN1N/3n2B1 b - - 0 1 illegal: No proof kernel
5r1N/p1qb2qQ/p1kn2Rn/4R3/2B1Qr2/PNBNKpr1/B4nq1/2B4r b - - 0 1 illegal: No proof kernel
qn1b1R1b/7p/8/1BKB4/2RNbQ1r/BN1pQnkP/2q1Rp1R/3nq1n1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 b5 Qd3 f5 Qd2 Ra6 Qd1 Rf6 Nd2 exf4 Nb1 f3 Nd2 f4 Nb1 Rf5 gxf5 Be7 Nc3 Bc5 Nb1 Bf8 Kd2 Kf7 Kd3 Kf6 c4 Kg5 e4 Kh4 a4 g5 c5 d5 f6 b3 e5 g4 a5 b4 h3 f2 f7 g3 c6 g2 c7 f3 a6 b2 e6 b3 a7 Nf6 a8R Be7 f8Q Rg8 R1a7 Nfd7 Ra4 Kg3 Na3 b1N R8a7 b2 Rb7 Nc3 Qb3 b1Q+ Nc2 Ne2 Rb5 Rg4 Qf7 Rh4 Rc4 Bb7 c8R Bf6 e7 Bh8 e8B Ne5+ Kd2 d3 Ke3 d2 Rh2 Bc6 Na1 Qc2 Ba3 Qa5 Qd3 Qa8 Rb2 Bb7 Nb3 Bc6 Rf4 Bb7 Bc6 d4+ Ke4 d1N Bd5 Bc6 Rf8 Bb7 Kf5 Bc6 Ke6 Bb7 Bc4 Be4 Qe3 d3 Kd6 Nd4 Be2 f1Q Bb5 Qe1 Bf1 Ne2 Qf6 Bb7 Rc4 Bc6 Kc5 Be4 Qc1 f2 Nf3 g1B Nfd4 Nf3 Qf7 Nc6 Bg2 Nb8 Rh1 Bh2 Qe3 Ng1 Ra2 Rg4 Rb2 Kh4 Qf5 Bc7 Rh2 Kg3 Qfg5 Bd8 Qh6 Qcc3 Re2 Qc2 Qhf4+ Kh4 Ba6 Bd5 Ne6 Ng5 Be4 N5f3 Ned4 Bc6 Qf6+ Kg3 Bb5 Rh4 Qf7 Be8 Qf6 Bg6 Bd5 Be4 Qff4+
1kr1r3/1Nqq1BRb/R3p2n/1R2R1B1/1Q3Nq1/Qr1NK1pr/b1p1P3/4b3 b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 b5 fxg4 b6 axb6 Nf3 b5 Ng1 b4 h3 g5 Bg2 g3 Bf1 Nd7 h4 g4 Qb3 Ndf6 Qc2 Ne4 Qd1 Ng5 hxg5 Ra6 Nh3 Ra7 Ng1 Ra8 d4 Kd7 Kd2 b5 a4 c5 f4 Kc7 f5 h5 f6 b3 d5 c3+ Ke3 h4 a5 b4 a6 b2 g6 b3 d6+ Kb8 d7 g2 g7 c2 f7 h3 Nc3 b1B Na2 b2 Rh2 c4 Qd2 c3 Nb4 Ba2 Rb1 Nh6 g8R g3 Rh1 h2 Nd3 e6 Rg7 Bb4 f8Q Bb7 Nh3 Be4 Nhf4 Bh7 Qe7 g1R Bg2 Re8 Bc6 Re1 Rf1 h1Q Qc5 Qc8 d8N Qd7 Nb7 Qh5 Be4 Rd1 Bg6 Qg4 Bf7 Ba5 Rf3 Rh1 Qa3 Rh3 Qe1 Rc8 Bd2 c1Q a7+ Kc7 Rf1 Re8 Rf2 Rac8 a8R c2 Ra7 Kb8 Ra6 Qd1 Bc1 Qc7 Qeb4 Qd2+ Kd4 Qd1 Rf3 Qd2 Re3 Qd1 Re5 Qd2 Ra1 b1R Rb6 Rb3 Rbb5 Qdc3+ Ke3 Q3c6 Qe7 Be1 Qab4 Bb1 Ra6 Ba2 Qa3 Q6d7 Qeb4 Qg6 Bb2 Qg4 Bd4 Rb1 Bc5 Rb2 Be7 Rb3 Bg5
2K5/p3QR1r/n1pN1nn1/kBQrp1q1/2nQ4/2q1b1R1/PNN5/1q2B1rN b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 h3 fxg4 Ke2 g3 Ke1 g2 Nf3 g5 Ng1 g4 Ne2 g3 Ng1 Bg4 hxg4 Qd7 Ke2 Qc8 Ke1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb5 Kf5 h5 Ke6 h4 b4 e3 d4 c6 f4 e2 g5 e1R+ Ne2 g1Q d5 c3 d6 h3 d7 h2 g6 g2 g7 c2 f5 Rh6+ f6 Qe8 d8Q Rh3 f7 Rg3 Q1d4 Ra3 Nc3+ Ka6 b5+ Kb7 b6 Ka6 b7 Nf6 g8N Bh6 f8Q Ra5 Nd1 Be3 Nh6 Rd5 Bd2 c1N Ng3+ Nd3 Nb2 Qh5 Bb4 Qf3 Nhf5 Kb5 Bd2 Na6 b8N Rc1 Be1 Rb1 Nc4 Ne5 Nfd6+ Ka4 Q8b6 Ng6 Qbc5 Rd1 Rb1 Rc1 Rb3 Ra1 Kf7 e5 Ke6 Rb1 Qe7 Rd1 Nd7 Rh8 Nb8 Rh7 Rc3 Bd2 Rb3 Qc3 Rb7 Qge3 Rg1 Qg5 Nh1 Be3 Bd3 Ne4 Kd7 Nf6+ Kc8 Ra1 Rf1 g1N Rb3 Nf3 Rf2 Nd2 Rf4 Nc7 Na6 Rd1 Nb4 Na6 Nc2 Ra1 Nf2 h1Q Rf3 Qhg1 Rb7 Qh1 Rg3 Qe4 Nh1 Rd1 Bf2 Rg1 Bf1 Qed3 Be1 Qe4 Nb4 Qb1 Nc2 Qb5 Nb2+ Ka5 Qe8 Nc4 Rf7 Bf4 Qf2 Be3 Qe7 Na3 Qd4 Qbb4 Bb5 Nc4 Qc5 Qbb3 Qd2 Qbb4 Qdd4 Qbb3 Nd3 Qb1 Nb2
1qr3n1/r2BR2B/2Q1bp2/4N1pp/n4rPn/kN1K2N1/r2R1Q1B/5rnB b - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 f5 g6 h5 Bg7 h6 e6 hxg7 exf5 Bd2 f4 Be3 Ra5 Bc1 Ra8 Kd2 Ke7 c4 Kd6 g4 Kc5 e4 b5 a4 h5 a5 d5 e5 g5 e6 b3 a6 Kb4 c5 f3 c6 d3 e7 f6 e8N f2 a7 b2 c7 d4 Ra3 Na6 Nc3 b1R Qe2 Nc5 Na4 Ra1 Qf3 Ra2+ Nb2 Na4 Rh2 Be6 Bg2 f1R Qf2 Qb8 c8B Rh7 Bh1 Rh8 Qf5 Rf4 Nd6 Rh7 Nf7 Rh8 Ke1 d2+ Ke2 d1R Bd7 Rdf1 Ne5 d3+ Kd2 Rh7 Ne2 Rh8 Ke3 d2 Nbc4 d1N+ Kd3 Ne3 Ng3 Ng2 Na5 Nh4 Rd2 Rh7 Rc3 Rh8 Nb3 Rh7 Rb2 Ka3 Rc7 b4 Be3 Rh8 Bg1 Rh7 Bh2 Rh8 Nd4 b3 Rd2 b2 Nb3 b1N Rb7 Nbc3 Rc7 Ne7 g8B Ne2 Bh7 Ng8 Rb7 Ng1 Rc7 Qb6 Rb7 Rc8 a8Q Qc7 Qa6 Qb8 Qc6 Rc7 Rb4 Ra7 Re4 Nh6 Re1 Rc8 Ree2 Ng8 Re1 Rc4 Qf2 Rf4 Nf3 Bf7 Re7 Be6 Ne5
1q2kn2/n1np1p2/qN1n1n2/4B2p/2B4R/2K1QP2/r1BnQR2/1b1RR1Nr b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 Rh3 a5 Rh1 axb4 c3 gxh4 Qd3 b5 Rh3 b3 Qc2 b2 Qd1 b4 Rh2 b3 Rh1 Bb4 cxb4 Ra7 Bf4 Ra6 Bc1 Ra8 Kd2 c5 g4 d3 a4 c4 e4 h3 g5 h2 b5 Qf6 b6 Na6 f3 Bb7 a5 Nc7 e5 Be4 b7 Qa6 g6 Nf6 Kc3 d2 Na3 b1Q g7 b2 g8B h6 Qe2 d1N+ Kb4 c3 e6 c2 Bf4 c1N Be5 Rh7 Nc4 Nc3 Nb6 N3b5 Kc4 Na7+ Kc3 Rh8 Bh7 Nd3 Ra2 Nf4 b8Q+ Ke7 Qe3 Ng6 Bc4 Nf8 Qb7 Bc2 Qbe4 Ke8 Qe2 Bd3 Q4e3 Bc2 Nh3 Bd3 Rd1 h1N Ng1 Ng3 Bg6 Nf5 Ra4 Qb7 a6 Nd6 Be4 Qa1 Bf5 Bb1 Bc2 Qb8 Rb4 Nc6 a7 Qa4 Bb5 Qa6 Rh4 Ba2 Bc4 b1N+ Kd3 Nd2 Kc3 Qd8 Bf4 Bb1 Be5 Rb8 a8R Na7 Na4 Rb2 Nb6 Ra2 Rc8 Na8 Rc5 Qb8 Rd5 h5 Rf1 Rg8 Rf2 Rg2 Rd3 Rh2 Rdd4 Nf1 Rd1 Rh1 Q3d2 Kd8 Qde3 Nd2 e7+ Kc7 e8R Qa4 Qg5 Qb7 Bg3 Qaa6 Qd3 Qb8 Ree1 Kd8 Qe2 Nc7 Be5 Ke8 Qge3
1n1Qq3/2p1p2b/2RBk1Qn/4npQ1/3Qr1N1/nN2PB1N/1q1R3n/5rnK b - - 0 1 legal: proof: c4 g5 f4 gxf4 h4 d5 g4 dxc4 b4 a5 g5 Bh6 g6 Bg5 hxg5 axb4 Kf2 Kd7 Kg2 b5 d4 h5 a4 f3+ Kh2 b3 d5 b2 g7 f2 e3 h4 d6 b4 g6 c3 a5 h3 a6 b3 a7 c2 Bd2 c1N Ra5 Qe8 Rd5 Nh6 g8N Ne2 g7 Ke6 Nf6 Rf8 g8Q Ba6 d7 Bd3 Qg5 Bh7 Ng4 f6 Nf3 Ng1 Bb4 Rf7 Nbd2 b1N d8Q b2 Bb5 Na3 Bc6 b1Q Nb3 Qb2 Rd2 Rf8 Bd6 Rf7 Kg3 h2 Kg2 f1N Qb1 f5 Qd3 Rf6 Qd4 Rg6 Nfe5 Rf6 Nf2 Rg6 Nh3 Rg7 Qg3 Rg4 Bf3 Re4 Qf4 Ne2 Rg1 h1N Ng4 Nf2 Qg5 Nh2 Rc1 Nd3 Kh1 Ng1 Rc6 Ne5 Qh5 Na6 Qg5 Rb8 a8Q Rb7 Qh5 Nb8 Qa6 Rb5 Qg5 Rc5 Qe2 Rc1 Qf2 Rf1 Qfh4 Nhf7 Qhh5 Nh6 Qhg6+
N2Q2b1/6QR/1p2Bp2/nRb1r3/6bQ/NPk1n1KQ/b3rBpB/3b2bb b - - 0 1 illegal: No proof kernel
n1bn1K1n/2k1p1N1/nb2P1pB/3QNRN1/2BprN2/b5Q1/4n3/rn2Q2R b - - 0 1 legal: proof: g4 a5 d4 f5 b4 axb4 h4 c5 h5 cxd4 h6 Qb6 Bg5 Qf6 Be3 g6 Bc1 Qg7 hxg7 fxg4 Kd2 Kd8 Kd3 d5 e4 b5 c4 h5 f4 h4 a4 g3 e5 h3 e6 g2 a5 h2 a6 b3 c5 b4 c6 b2 a7 b3 f5 Na6 f6 Kc7 f7 Nh6 g8Q Bg7 f8N Nf7 Nc3 b1N Ra5 b2 Nge2 g1B Rc5 Rh4 Nd7 Na3 Ne4 b1N Qe1 Nb5 Ng5 Nbd6 Ne5 Nd8 Nf4 N6f7 Qh8 Rg4 Qh3 Nh8 Qhg3 Be3 Ke2 d3+ Kf3 d2 Bc4 d1N Bd2 Ndc3 Rb5 Kd6 c7 Bb6 Ra5 Na4 Be3 Bb7 c8N+ Kc7 Nd6 Bc8 Nf5 d4 Ke4 Bh6 Kd5 Rh4 Ng7 Rg4 Rf1 h1N Rg1 Nf2 Bd2 Nd3 Rh1 Nc1 Rb5 Ne2 Ra5 Rb8 a8Q Rb7 Ke4 Ra7 Qd5 Bc5 Bc1 Nb6 Bd2 Na8 Be3 Rh4 Kf3 Rh3 Kg4 Bb6 Ne4 Nd2 Nfh5 Rh2 Ra2 Nf4 Nf5 Nb1 Rf2 Nb8 Bd2 Bf8 Kg5 Rh4 Rf3 Bg7 Be3 Bf6+ Kh6 Bg5+ Kg7 Ra1 Kf8 Na6 Nfg7 Ne2 Bc1 Bd2 Rf5 Bb4 Bh6 Ba3 Ng5 Re4 Nf4
3nB3/2rr2b1/Q2R1rbN/ppR1QQ1n/1rr5/1Pk2b2/4RKp1/2B1N1rR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 c5 f5 cxd4 f6 Qb6 a5 exf6 axb6 f5 Bg2 f4 Bh3 Ne7 Bf1 Ng8 c4 Ke7 h4 Kf6 e4 Ke5 b7 g5 b3 f5 c5 d5 c6 a5 h5 d3 h6 Kd4 e5 g3 h7 g2 e6 g4 e7 f3 e8Q f4 c7 d2+ Kf2 Ra7 Bc4 Nf6 Qf1 d1B Ra4 g3+ Ke1 f2+ Kd2 f3 Qh5 Bg7 Ra3 Bf5 c8R Nc6 b8Q Nd8 Qd6 Rc7 Nh3 g1R Ng5 g2 Qa6 Bg6 Nf7 Rg8 Qe1 f1R h8R f2 Ra2 Bf3 Qf5 Nh5 Na3 Re8 Rg8 Re4 Nh6 Rf4 Qe8 Re1 Rf8 f1R Rf6 Ree4 Rd6 Rg4 Rb2 Ref4 Qe1 Rh4 Be2 Rf2 Kd1 Rff1 Rd2+ Kc3 Nc2 d4 Rb6 d3 Rd6 Bc6 Bf3 Rfg4 Re2+ d2 Be4 Ba8 Bc6 Rb4 Bd7 Rhc4 Be8 Rf7 Rc5 Rc7 Ree5 Bc6 Ke2 Bf3+ Ke3 Rf2 Qe2 d1R Ne1 Bd5 Re7 Rf4 Ree6 Bf3 Kf2 Rd5 Qee5+ Rdd4 Qg5 Rf6 Qef5 Rd3 Re2 Rd1 Rdc6 Rdd7 Rd6 Nb7 Qgf4 Nd8 Q4e5+
8/NQ5b/2Rr2qb/N1rq2np/BK4R1/p2q3P/Q1pNq3/bbk1BQ1Q b - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 e5 Ra3 b5 Ra1 bxa4 g4 f5 Na3 Nc6 Nb1 Nce7 Qb3 exf4 Qd1 f3 Bg2 f4 Bf1 Nf5 gxf5 Qd3 Nc3 Qd6 Nb1 Qd8 e4 Kf7 d4 Kf6 Kd2 Kg5 Kc3 a5 b4 c5 h3 h5 d5 f2 d6 a3 b5 a2 b6 a4 e5 a3 b7 Nf6 b8N Ne4+ Kc2 c3 Kb3 c2 d7 Ra6 f6 Rd6 f7 c4+ Kb4 c3 Be3 c1Q e6 Qb2+ Qb3 Qe2 Bc5 f3 e7 Kf4 e8Q g5 Qd5 g4 Nd2 g3 Rc1 a1B Nc6 g2 Nc4 Bh6 Qg8 Ng5 Na7 Bb7 Qd1 Be4 Na5 Bb1 f8Q+ Ke4 Qe1 Kd3 Qa2 Qa8 d8Q Qd5 Qb8 c2 Qb7 Rg8 Be3 Rg7 Bd2 Rc7 Rd1 Rc8 Bc3+ Ke3 Rd4 Rc5 Rg4 Kd3 Qd1+ Ke3 Qfa8 Qed3 Be2 f1B Be1 f2 Nf3 g1Q Nd2 Bg2 Rh2 Be4 Rhg2 f1Q Rf2 Qg3 Rf6 Bh7 Qc1 Qg6 Bb5 Qe2 Ba4 Qgf3 Rf8 Qed3 Rc8 Ke2 Rc6 Qfe3 Qcb2 Kd1 Qf6 Kc1 Qf1 Qee2 Qab8 Rd7 Qh2 Rd6 Qhh1
B2N1rkQ/b1p1Rn1q/2bB1Q2/1nP5/RN1Rp1Kp/1qb4R/2n1nB2/b7 b - - 0 1 illegal: No possible last move, all moves rejected
1bQQ1rrn/1BBK4/rb2r3/1k3pRR/1Q1Rn1p1/2bbb2Q/2pN1P2/6N1 b - - 0 1 legal: proof: c4 h5 d4 d5 g4 dxc4 e4 hxg4 b4 a5 e5 axb4 d5 Qd6 exd6 Ra5 Ne2 Ra6 Ng1 Ra8 Kd2 Kd7 Ke3 e5 Ke4 b5 Kf5 c5 h4 g5 a4 b3 h5 b4 a5 b2 h6 e4 a6 c3 a7 b3 h7 g3 Bd3 g2 Be2 c2 Ra6 e3 Bd3 c4 Qh5 e2 Qh2 e1B Rc6 g4 Qf4 c3 Bc4 Nf6 Nh3 g1B Qh2 Ne4 Bd3 Rg8 h8R Ba6 Bh6 c1B Nd2 b1R Bf1 c2 Bg2 b2 Bf4 Ra1 Rc4 b1R Rh5 Rb6 Rg5 Nc6 Rd4 Ne5 Qg3 Rd8 a8Q Bd3 Qb8 Bh2 Ng1 Raa6 Qh3 Ng6 Bf3 Rc6 Qb4 Nh8 Ke5 f5 Bg2 Kc8 d7+ Kc7 Bg3 Bd6+ Ke6 Rdf8 Be5 Rcb6 d8Q+ Kb7 Kd7 Bb8 d6 Bc7 Nf1 Bc3 Qc8+ Ka7 Bf3 Be3 Nd2 Bd8 Qf1 Bhf4 Rhh5 Rc6 Qh3 Bb6 Ke7 Bg3 d7 Rcf6 d8Q Re6+ Kd7 Bh2 Bf6 Bb8 Be5 B6c7 Qa3 Kb6 Qb2+ Ka5 Qb1 Bb6 Bc7 Rff6 Qb2 Rff8 Qa3+ Kb5 Bh1 Ng3 Bb7 Ne4 Qb4+
2Q3Rr/2B1b1n1/1R3p1Q/rq6/1NNpQ1B1/PnbrBp2/4p1B1/1K1b1k1n b - - 0 1 illegal: No possible last move, all moves rejected
3qN2Q/1R3RnN/knp3p1/2RBrN2/2pBp1P1/r7/1b3b1K/nQ2Rr1b b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Qc2 h5 Qc3 h4 Qg3 hxg3 f4 Kd7 b4 a5 h4 e5 d4 c6 f5 Kc7 d5 Kb6 h5 g6 d6 a4 h6 a3 h7 a2 f6 e3 f7 g2 d7 e2 Kf2 e1R Kg3 Ra5 Ne2 g1N Nd4 Bb7 Bb2 Nh6 Nf5 Qe8 d8R Bg7 f8N Ba6 Kh2 Ne2 Rd5 Nd4 Nd2 Nb3 Ne4 Ra3 Bg2 Bc8 Nf6 Nd7 Rf1 Qd8 Bd4+ Kb7 b6 Ka6 b7 Nb6 b8R Be6 Rb5 Bd5 Ne8 Rc1 Rf2 Rf1 Re1 a1B Rb7 Bb2 Rc5 Na1 Rf4 Rg8 h8Q Bf6 Rf2 Bh4 Nh7 Rg7 Rf4 Bf2 Bf3 Re7 b5+ Ka5 Be2 Bg2 Bf3 Bh1 Bd5 e4 Rf3 Re5 Rf4 Na8 b6+ Ka6 Rd7 Ra5 b7 Nb6 b8Q Ra4 Rb7 Ra3 Nfd6 Nf5 Rf3 Ng7 Rff7 Re7 Nf5 Re6 Qg3 Re7 Qd3 Re5 Qb1
1NKB2Rq/Q1b1NP2/1Br4b/n1k4B/Q3p1nr/1p1Rp1n1/1r1p1N2/3b1N2 b - - 0 1 illegal: No possible last move
3nR1N1/1Pp1N3/Qb1rbQ2/nr3n2/Kp1p4/b2B1r1p/N1BB2R1/qB1k4 b - - 0 1 illegal: No possible last move, all moves rejected
qr3R2/np1B1kn1/1b2N3/1QBp4/2QBp1b1/N4rnp/1PKQb1Rr/7Q b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qxa5+ Ke2 Qa6+ Ke1 Qa2 Kd2 a5 f4 d5 g4 h5 c4 e5 g5 e4 g6 a4 g7 a3 f6 h3 c5 h2 f5 h4 c6 h3 f7+ Ke7 f6+ Ke6 c7 d3 Ne2 Bc5 f8Q Qc4 f7 a2 Rg1 h1N Na3 Qa6 Rg2 Bb6 Qb4 Ng3 f8B Nf6 Nd4+ Kf7 Qb5 Nfh5 Bc5 Rf8 Ne6 Nc6 Qc2 Bd7 c8Q Rb8 Kc3 Qa7 B1e3 d2 Bed4 d1B Qd2 Be2 Kc2 Qa8 Qc7 Na7 g8Q+ Ke8 Qg4 Ng7 Qf3 Rf6 Rc1 a1R Rd1 Kf7 Qc8 Bc4 Be2 Rf4 Rf1 Re1 Rff2 Rh1 Bd3 Rf5 Qfd1 Rh2 Qh1 Rf6 Be2 Rf4 Bg4 Be2 Qcc6 Rf5 Qc4 Rf3 Q6b5 Bc8 Nf4 Bf5 Rf1 Bg6 Bd7 Bh5 Ne6 N3f5 Rg6 Ng3 Rf2 Bg4 Rg2 N7h5 Rg8 Ng7 Rf8+
B1Qr1n1k/n3Nn1q/3rR3/3bq3/p2Q2R1/1pbP1q1p/3B1pN1/2RNR2K b - - 0 1 illegal: No proof kernel
K1R2Q1R/5q2/2QBnqn1/4pN1r/b3p2p/R3b1rb/BNp4P/1nkB1R2 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ke2 g5 Ke1 gxf4 Kf2 Kd7 g4 Ke6 d4 Kd5 b4 c5 b6 h5 g5 e5 b5 a5 b7 h4 g6 c3 g7 f3 Ke3 c2 b6 c4 Be2 f2 Ba3 f1B Bd6 c1Q+ Nd2 c3 Qc2 a4 Bd1 a3 Nf3 Bfh3 Rf1 Na6 b8R a2 b7 Bcd7 Rc8 Qf6 b8Q Ne7 g8B+ Qf7 Ke2 Bh6 Nc4 Ba4 Nb2 Nc7 Qb4 Be3 Qb8 Ke6 d5+ Kf5 Nd4+ Kg5 Qb4 Ne6 Nf5 Ng6 Qc5 Kg4 Qc6 Rh5 Qb3 c2 Qb4 Bg1 Qbc5 Qb1 Kd2+ Kg5 Kc3 Be3 Kb4 Ra5 Bf3 Kf4 Kc4 Qe1 Bd1+ Qf2 Qa3 Ra8 Kb4 Rb8+ Ka5 Rb3 Ka6 Qf3 Qb4 Qf6 Kb7 Rc3 Rc1 a1N Ka8 Nb3 Ra1 Nd2 Ra3 Nb1 Bf7 Qf2 Rh8 Bd2 Qb8 Rg3 Qf8 Be3 Bb8 Bd4 d6 Be3 d7 Qf3 d8R Qf2 Be2 Qf3 Rc8 Qf2 Bc4 Kf3 Bd5 Ke2 Bd6 Kd2 Bc4 Qf3 Be2 Qf2 Bd1 Kc1 Qa6 Nc5 Bb3 Ne6 Ba2 Qf7 Qc6 Qf3 Ne7 Q3f6 Nf5
KNR2NB1/B3Q1N1/n2r3R/b1qp3P/1k1n2n1/p5p1/prb4q/3qB1BQ b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 exf5 h6 Ra3 hxg5 Ra1 g4 Ke2 a5 Kd3 e5 Ke4 Ke7 Kd5 g5 b4 e4 f4 a3 c4 a2 h4 a4 b5 a3 f6+ Kf7 b6 d6 f5 d3 c5 g3 c6 g4 c7 d2 b7 g2 Nf3 g1Q Nc3 g3 Ne5+ Ke8 f7+ Ke7 Ne2 e3 Nd4 e2 Nd7 e1Q Ne6 Bg7 f8B+ Kf7 f6 Na6 Kc6 Qef2 b8B Rh6 Bc4 Qfh2 Ba7 Rb8 Bf2 Rb2 Nb8 Bh8 Ng7+ Be6 Qe1 d1N c8Q Nc3 Bce3 Nb5 Kb7 Nd4+ Ka8 Qc7 Qb1 Qc5 Qd8 Qd1 Qe4 Rg6 Rc1 Nh6 Qg2 Ng4 Qe7+ Kg8 Bb3 Rh6 Rc4 Bf5 Qg1 Bc2 f7+ Kh7 Rc3 Kg6 Be6 d5 Qg2 Qb4 Rc8 Qc5 Bg1 Qc7 Bef2 Qc5 Qd7 Kf6 Qe7+ Ke5 Qf3 Qh3 Rh2 Rf6 Qh1 Qg2 Bf5+ Re6 Bh7 Qh3 Bg8 Qg2 Qb7 Rd6 Be7 Ke4 f8N Kd3 Bd8 Kc4 Bb6 Kb5 Qe7 Kb4 Ba7 Nb5 Nh5 Bc3 Ng7 Nd4 h5 Nh6 Rh4 Bd2 Rf4 Ng4 Rf6 Qh2 Rh6 Kb3 Nfd7 Ba5 Nf8 Kb4 Be1+
4rB2/1RB1qb1K/1Q5N/Np1b1n1R/pP2k3/2r1p2q/2Qb2p1/r1n2NQQ b - - 0 1 illegal: No proof kernel
qbnQ1R1K/B1r2rNb/1R1r2kp/n1Q2Bpq/3p4/8/R1RP1p1N/2q1N3 b - - 0 1 illegal: No proof kernel
N4n1q/1qR5/1n1NQRp1/p1r2b2/B1r1R2B/1p1K1P1q/npB1RQ2/2bk4 b - - 0 1 illegal: No proof kernel
3Q3Q/bK2k1B1/nbR3pp/8/Qrq1Np2/rB1N2pR/2P4n/1bnqBB2 b - - 0 1 illegal: No proof kernel
Q1n1B2q/1RQ3Q1/r1r3pp/Rn3p2/2qn1bN1/1k4p1/R3BRbP/1NbK4 b - - 0 1 legal: proof: f4 b5 g4 c5 a4 f6 d4 cxd4 axb5 Kf7 g5 Ke8 f5 fxg5 f6 g4 Bg5 Kf7 Bh4 Ke6 f7 Kd6 Bf6 exf6 Ra4 Ke6 Ra1 Ke7 c4 Ke6 e4 a5 b4 d5 b6 a4 c5 h6 e5 f5 b5 d3 b7 g6 b6 d2+ Ke2 a3 c6 g3 c7 d4 Qc2 Kd5 e6 d1N e7 a2 e8R d3+ Ke1 Ba3 f8Q Nc3 Nd2 Nc6 b8Q Ra6 b7 Nb5 Re2 Ncd4 Ngf3 Ne7 Rf2 Bd7 c8B Bc6 Ne5 Rh7 Qf6 Qh8 Bd7 Nc8 Be8 Rc7 Rg1 Bd6 Ng4 Bf4 Rc1 a1B Qa8 Bb2 b8R Bb7 Ra1 Rc4 Ra5 Ba3 Rgg2 Bc1 Nb1 Bc6 Rf3 d2+ Kd1 Kc5 Qg7 Kb4 Rb7 Rc5 Re2 Bd5 Rfa3 Bg2 Ra2 Rc7 Qc6 Kb3 Qd6 Rc2 Qdc7 Rcc6 Rf2 Nc2 Ke2 Nd4+ Kd3 d1Q+ Rad2 Ba3 Be2 Qc1 Ra2 Qc5 Ne3 Bb2 Kd2 Qc4 Kd1 Bc1 Ng4
q2nQ2R/r2r1Bb1/qNp5/B1q3pr/KRp1pkN1/5Q2/RNn2Pb1/6R1 b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 d4 Kf7 Kd2 Kf6 Kc2 Kf5 h4 a5 b4 g5 d5 e3 h5 e6 d6 g3 d7 g2 h6 a4 h7 e2 b6 e1R b7 a3 b5 a2 b6 Bg7 Nd2 Qe8 d8Q Ne7 Ngf3 g1Q Nh2 Kf4 Ng4 Na6 b8R Nc6 b7 Ra7 Qe7 Qg2 Rg1 Qf8 Qe8 Nd8 Ba3 Qe7 Bb4 Qc5 Ba5 Qgd5 Qe2 Rd1 Bg2 Qdd6 Bd5 Bd7 Qd3 Bc6 Qc3 Nb4+ Kb2 Bd7 Ka3 Qa6 Qb3 Bc8 Ka4 Nc2 Qh3 Rg8 h8R c6 Ne4 e5 Nc3 e4 Bf7 Rd5 Nd1 Rd7 Nb2 Rf8 Rab1 Rg8 Ra8 a1Q+ Qa3 Rf8 b8N Rg8 Nd1 Rf8 Rb4 Rg8 Nb2 Rf8 Rh6 Rh8 Rh2 Rh5 Rh3 Rd4 Nd7 Qa2 Nb6 Bf5 Nh6 Rdd7 Rhh1 Bh3 Ng4 Bg2 Rh3 Qb1 Qd3 Qf1 Qe2 Qe1 Ra3 Qd1 Ra2 Qa1 Qe7 Kf5 Ra3 Ne6 Rh8 Ra8 Qe8 Qa7 Qd3 Nd8 Qc3 Qc1 Qf3+ Qf4 Nd1 Qa6 Qc3 Raa7 Qg3 Qb8 Ra2 Qa8 Qa3 Kf4 Nb2 Rh4 Qd3 Rh5 Qf3+
2B2qQQ/N1Q1N3/1np3q1/N3BPQ1/3Rb1qp/4k3/4n1pp/nrbK2Rr b - - 0 1 illegal: No proof kernel
3N3R/R4Kn1/pp1bNBR1/2p1q2b/1q5N/4Q1q1/pR2Pn1b/Q2r1Bkr b - - 0 1 illegal: No proof kernel
2b3q1/B1r1kB1p/bR1N1QnK/1q2ppr1/R4P2/3N2QR/1r1p1R2/n1b2Q2 b - - 0 1 legal: proof: e4 b5 h4 g5 d4 gxh4 a4 c6 d5 cxd5 axb5 dxe4 Qf3 e3 Qh5 Nf6 Qd1 Ng8 Ke2 d5 Kf3 e5 g4 a5 c4 a4 b4 d4 g5 f6 c5 e2 b6 e1Q b7 d3 b5 h3 g6 a3 c6 h2 c7 a2 b6 Na6 b8R Nc5 b7 Qa5 g7 Qe1 Be3 d2 Bc4 Ra5 Ne2 Qg1 Bf7+ Kd7 Nbc3 Rb5 Ne4 Rb2 Nd6 Qf1 Kg4 Ke7+ Kh5 Nb3 Nf4 Qb5 Nd3 f5 f4 Qde8 Rf1 h1B Ba7 Bd5 Qe2 Bc4 Rf2 Qd8 Rh1 a1R Rh3 Rc1 Ra8 Na1 b8R Rg1 Qf1 Rg5+ Kh4 Qbd7 Rb6 B4a6 Nc5 Qb5 Nd3 Nf6 g8Q Nd5 Qg7 Rg8 Qh8 R8g7 Qg8 R5g6 Kh5 Rg5+ Kh6 Qde8 Bg6 Qf7 Qh8 Qg8 Bf7 Ne3 Rhf3 Ng2 Rg3 Nh4 Rh3 Be6 c8Q Ng6 Qc2 Bec8 Qc3 Kd8 Ne8 Ba3 Nd6 Ke7 Qc6 Rb3 Qf3 Bc1 Qg3 Rb2 Bb8 Bab7 Ra4 Ba6 Ba7 Kd8 Bb3 Rc7 Bf7 Ke7 Qf6+
r2Q2b1/1q2bNBp/1Rr2b2/1p4p1/1B1qn2P/p3N2n/k3N2K/nBRQ2N1 b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a4 d5 axb5 dxe4 b6 c6 b5 cxb5 f4 Kf7 Kf2 Ke6 Kg2 Kd5 h4 a5 d4 g5 c3 e5 f5 e3 f6 a4 f7 g3 b7 a3 Bb2 e2 Ra2 Kc4 d5 e4 d6 e3 d7 Na6 b8Q Be7 f8B Nb4 Ra1 Qc7 d8N Be6 Nf7 Nf6 Qbd8 Nc2 Ra2 Kb3 c4 e1Q c5 e2 c6 Qe5 c7 Qd4 c8N Ne4 Ncd6 Qeb4 Bc3 e1B Bg7 Bd5 Kh3 g2 Nf5 Qd6 Be2 Qc7 Ne3 Qb7 Bb4 Bc3 Bd3 Ra6 Ra1 Rc6 Kh2 Bb2 Nc3 Re8 Qc7 Ra8 Rc1 Be6 Nce2 Ka2 Qd8 Na1 Rc5 Bb3 Rf5 Bc4 Rf6 Be6 Nf3 g1N Rg6 Nh3 Nfg1 Bb3 Bc2 Rc5 Rb6 Rc6 Nh8 Bg8 Nf7 Bc3 Bb1+ Kb2 Qa4 Qd2 Nf3 Bcf6 Rc1 Qd3 Nfg1 Qd4 Bd3 Ka2 Qd1 Qa7 Bc2 Qb7 Bb1+
RrQ5/B3nqkp/1PNb1q1p/Rp1p1b2/RQNrQ3/5B2/K4b2/R3nn2 b - - 0 1 illegal: No proof kernel
3RQK1n/Bb2B1pQ/1bq3r1/rRN2k2/1p1b1N2/1PrRn3/pp6/2q2Q1R b - - 0 1 illegal: No proof kernel
1R1QQK2/1RNq1prB/bb2r1Q1/Bpn1b3/1Np4Q/P2Rn3/k4p2/n4q2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 h4 Kd6 e4 Kc5 d4+ Kd6 e5+ Kd7 d6 Ke6 d7 Kd5 e6 b5 h5 c5 e7 g5 e8Q f3 Ke3 g3 h6 b3 h7 g2 Na3 b2 Bd2 b1N Nc2 g4 Kf4 g3 Kf5 Na3 Rh3 Ba6 Ne2 Kc4 d5 g1Q d6 g2 Ba5 Bg7 Qb1 Be5 Nb4 Nc2 Nd4+ Kc3 a3 c4 Ne6 Nf6 Nc7 Rg8 h8Q Rg7 Qh4 Nd5 Bd3 Qf1 Be4 Qe7 d8R g1B d7 Bb6 Rc8 Qd6 d8Q Nd7 Rb8 Nc5 Ra2 Na1 Re2 Qc6 Bd3 f2 Re1 Bd6 Re7 Ne3+ Kf6 Qd7 Bh7 Ra7 Qg6 Kb3 Na8 Rc7 Rf3 Rc6 Nc7 Qdh3 Rd7 Be5+ Ke7 Re6+ Kf8 Qg4 Na8 Qd4 Rdb7 Qd7 Nc7 Kb2 Rf4 Kb3 Rd4 Kb2 Rd3 Kb1 Nc6 Ka2 Nb4+
k2B3r/q4p2/npb2R2/b2r3P/p2NN1bN/q2BK2Q/1RRpnQ2/R1r5 b - - 0 1 illegal: No proof kernel
K2Q1Rn1/n2qBpP1/5rpb/qR2Nqr1/pNbkBQ2/2n1p1B1/2B2R2/8 b - - 0 1 illegal: No proof kernel
2Q1k2N/nRb1Pp1p/1B4NK/3pq2N/2bR2qN/nB3rBQ/np6/4r2r b - - 0 1 illegal: No proof kernel
bn2q1rQ/BR2p1r1/3pq3/n2n4/1R1RP1p1/4p1RQ/K1b2N1r/2N1kB1N b - - 0 1 illegal: No proof kernel
1K3Q1r/rbnp1R1B/q1B2R2/1p2k1nN/p1P5/1bpQ4/6B1/qnbQN1B1 b - - 0 1 illegal: No proof kernel
1B3k2/2Np2r1/3bRq1P/4Bnr1/qBQ3p1/3np2p/2Bb2R1/qN1QRK1b b - - 0 1 illegal: No proof kernel
1K6/1NBppQQ1/Bb1QB1p1/R2Pb2q/1n2qpRN/1k2r3/2r5/nbn1B3 b - - 0 1 illegal: No proof kernel
BB1N2rB/KRp2k2/7Q/3n2q1/b2rNb1P/1r1p1pn1/p1QQR2Q/5qn1 b - - 0 1 illegal: No proof kernel
8/1KpN3p/nN1B2qp/1N2Q3/1nrr4/R1Qp2PR/q3b1kb/NBBb2q1 b - - 0 1 illegal: No proof kernel
2B1b2k/rPRp1B1N/2Q1p3/n1Br1b2/n2b4/3p2Qp/q2B2RR/q3nN1K b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 c4 Kg7 g4 a5 f4 h5 Kf2 h3 f5 a4 g5 h2 Kg2 e3 g6 h4 f6+ Kh6 c5 a3 c6 a2 c7 Ba6 c8B Ra7 g7 Kh7 b6 e2 b5 Nc6 f7 Nf6 g8R Na5 b7 Bg7 f8B Ne4 b8Q Nc5 b6 Bd3 b7 Bf5 Nh3 Na4 Qg3 d3 Qc2 e6 Bd2 Qb6 Qc6 Bd4 Bc5 Qb2 Rg6 Rf8 Ng5+ Kh8 Nh7 Qa3 Rg5 Bg6 Rg4 Rf5 Rg5 Be8 Rg6 Rd5 Rg5 e1Q Be2 Qb2 Bg4 Qe5 Rc1 h1B+ Kh2 h3 Bh5 Be4 Bf7 Bf5 Kh1 Qc3 Qh4 Qf6 Rg2 Qc4 Qg3 Qe5 Be1 Qf6 Nd2 Qg7 Rab1 a1N Nf1 Qa2 Rbb2 Nc2 Beb4 Ne1 Rh2 Qg4 Rbg2 Qd1 Rc4 Qdb1 Bd2 Qba1 Ba3 Bf2 Qb6 Qc2 Rc7 Qca2 Bc5 Bd4 Qc6
2B5/1pK1N1rq/knN3b1/b2rQpq1/pn1Q3p/2PN4/2n1N3/R1R1q1BB b - - 0 1 illegal: No proof kernel
4NnR1/1p1BB2r/1b2Q1p1/b1p3Q1/2q1np2/P2b1k1R/R1rB1B2/q1rN3K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 h4 Ke5 e4 c5 d4+ Kd6 h5 f5 a3 g6 h6 g3 h7 b3 Qe2 b2 Nf3 Ra4 Ng5 Bg7 Rh3 f3+ Kh1 f2 Bd2 Nd7 Nc3 b1Q Ne6 Nf8 Ra2 Nf6 Nc7 Rc4 Nd1 Rc2 Qg4 f4 Qg5 Bf5 Bb5 Qa1 Bc6 Qa8 Bd7 Qa4 e5+ Ke7 e6 Kd6 e7 f1R+ Kg2 Bd3 e8Q Ne4 Qc8 Bf6 Ne8+ Ke7 Qc6 Qc4 d6+ Kf7 d5 Bd8 Qc8 Bb6 Qc6 Rf2+ Kh1 g2+ Kh2 g1B+ Kh1 Rf1 Qc8 Rg8 h8B Rg7 Qc6 Rh7 Bd4 Re1 Bf2 Rf1 Bg4 Re1 d7 Rf1 d8B Bh2+ Bg1 Bg3 d6 Bf2 d7 Be1 Ba5 Bc3 Be7 Be1 d8R Bb4 Nb2 Rfc1 Nd1 Be1 Bf2 Bc3 Qa4 Be1 Bd7 Bd2 Bc6 Ke6 Qb3 Be1 Qg3 Kf5 Bd7+ Ke5 Bd2 Kd5 Bde3 Bea5 Bd2 Nc3 Qg5+ Ke4 Rh5 Kf3 Rh3+ Ke2 Rb8 Ne4 Rd8 Qa6 Qbd5 Qc4 Qe6 Qg7 Nd6 Qa1 Qed5 Ne6 Rg8 Nf8 Qc6 Qb3 Ne8 Qc4 Rh4 Kf3 Qe6 Rh6 Rh2 Rh7 Rh3+
q1R2B1r/Qp1q2RP/pK4Bk/1Q1Rnn2/5N2/pb1n1r1p/R1Bb4/3N1q2 b - - 0 1 illegal: No proof kernel
2bn2BN/1pQ3Rp/b1qR2bP/qpn2r1k/4rr1B/4p2K/B3Q2N/1QQ5 b - - 0 1 legal: proof: f4 g5 b4 gxf4 e4 d5 b5 dxe4 b6 axb6 c3 Bg7 a4 Bd4 cxd4 c5 Kf2 e5 g4 f5 Kg2 Kf7 h4 Kg6 g5 c4 a5 f3+ Kh3 e3 h5+ Kf7 d5 e4 d4 f2 g6+ Kf6 a6 Kg5 h6 c3 d6 f4+ d7 e2 d5 e1Q g7 c2 d6 Qf8 a7 Qe7 Na3 Qe8 Nc4 Nc6 Nf3+ Kh5 Rg1 Nd8 Nh2+ f3 Bg5 c1R Ne5 e3 Ra6 Qa5 Nf7 Rc5 Bh4 Nf6 g8B Rf5 Bc4 Ne4 Qe2 Nc5 Ba2 f1B+ Rg2 Rb8 a8Q Qe4 Qa7 Ra8 Qb8 Qc6 Qc7 Rb8 Qb5 f2 Qb1 Bd3 Rg7 Rf4 Qc1 Bg6 Qb1 Nde6 d8Q Re4 Qe8 Nd8+ d7 Rf4 Qee4 f1B+ Qg2 Bb5 Qgh1 Bc4 Qhc1 Be2 Ra8 Ba6 Ra7 b5 Ra8 Nde6 d8Q Rf5 Qdd3 Nd8 Ne5 Be8 Ng6 Rf4+ Bge6 Rhf8 Nh8 R8f5 Bg8 Be6 Rd7 Bg6 Rd6 Rc8 Qb6 Rc7 Rc8 Re7 Rc7 Re8 Rg7 Bc8 Qc7 Ree4 Qe2+
5n1R/1p1p1N2/rRpq3R/k1n2qbK/b2QbR2/1B2Q1p1/3P2qN/1rB2Q2 b - - 0 1 illegal: No proof kernel forced: wxLB
B5k1/p1b1r3/K2Q3B/P1p1pq1N/b1N1n1RR/1QQr3N/1Q1n2p1/n3b2q b - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b4 h5 bxc5 hxg4 c6 d6 c5 dxc5 Ke2 Kf7 a4 g5 d4 b5 h4 g3 f4 g4 f5 b4 d5 b3 c7 g2 f6 g3 a5 b2 d6 e6 d7 e3 Kd3 e2 Kc4 e1Q Kb5 Rh7 h5 Qe5 h6 Na6 Ra4 Qf5 Nd2 b1N Nc4 Nb4 Qb3 Nd2 Rh4 Nc2 Nh3 g1B Bg2 Bf2 Bf3 Qe7 d8Q g2 Qd6 Bd7+ Ka6 Be1 c8Q Na1 Qcb7 Rd8 Rb4 Rg7 h7 Ba4 h8Q Rh7 Qbb6 e5 Ba8 Rg7 Qh6 Qee6 Qhe3 Qb1 Qf3 Qef5 Qfc3 Be7 Rg4 Kf8 f7 Nf6 Qb7 Nfe4 Qbb8 Rh7 Rh4 Kg7 f8N Kg8 Ne6 Bg5 Qbb6 Re7 Ng7 Bf6 Nh5 Rdd7 Qdc6 Rd3 Qbb7 Red7 Qcb6 Bd8 Qd6 Bc7 Qbb6 Re7 Qb5 Nf1 Bh6 Nfd2 Qb7 Bg3 Qb5 Qh1 Qbb6 Be1 Qbb2 Bd7 Ra4 Bc6 Q6b3 Bd7 Rb4 Ba4 Ne3+ Qf7 Rb6 Ng3 Rbb4 Qe6 Rbf4 Nge4 Nc4 Qf5 Rfg4+
3Q4/pN1RP3/7K/2qrp2b/q1NBQ2p/rpQRnn2/Qbk5/n3bBR1 b - - 0 1 illegal: No proof kernel
1r6/B2Pp1bK/pn1b1R1b/3p1NQb/N1k2p1r/2b1B3/2Rn3Q/qB3BQ1 b - - 0 1 illegal: No proof kernel
N2BK3/qb1r2NR/1bk3B1/2r4p/2Pbp1n1/N5Q1/1N2pp1r/Rn1BQ2r b - - 0 1 illegal: No proof kernel
b2R1nBQ/Q3r1R1/Rq4pK/B1n4p/R2P2kp/1r1n4/2p1N1n1/NB2br2 b - - 0 1 illegal: No proof kernel
2q2b2/Nb6/r1p2nBn/3rQ1R1/1R1p1BnK/1n2rBPB/1kQpp3/4Q1N1 b - - 0 1 illegal: No proof kernel
5nnB/4b3/BRppNrNQ/Np3n2/2R2qb1/1N1Q3b/pR3b1P/K3k2r b - - 0 1 illegal: No proof kernel
n2r3r/1B5B/QpQ1Rbbb/5p2/qnR1BN2/BppN3K/P1k1b3/Rr6 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 d4 Kc6 e4 Kb5 g4 h5 Kg2 c5 d5 h4 g6 b6 g5 b3 g7 Kb4 d6 c3 g6 c4 d7 f3+ Kh3 f2 e5 c2 e6 Na6 e7 Nc7 e8Q Nf6 g8B Nfd5 g7 Be7 Qe2 Bf6 Nd2 Kc3 Bh7 Nb4 Bg2 f1B Ba3 c1B Ndf3 Bh6 g8B Qe7 Bc2 Qe4 Ne1 Rb8 Bd3 Na8 Bh7 Ba6 Bb1 Rd8 Nd3 Qc6 Q8e4 Qa4 Qc6 Bb5 Ne5 Ba6 Bbe4 Bc8 Nd3 Bb7 Qd1 Be2 Qf1 Kc2 Rh2 c3 Bh1 Rb8 d8R Rc8 Rd5 Rcd8 Rc5 Ba6 Rc4 Bb7 Kg2 h3+ Kg3 Bc8 Rf2 h2 Nh3 Bg4 Nhf4 Bh5 Kh3 Bg6 Bhf3 h1R+ Rh2 Rg1 Rg2 Be5 Rg5 Beg7 Re5 f5 Re6 Bf6 Qc7 Bhg7 Bb7 Bh6 Bfe4 Qa6 Qc6 Qa4 Qf2 Rc1 Qfc5 Rg1 Q5b5 Rb1 Qa6
1r1k4/1NN4p/rp1N1n2/NKpRP1B1/rbn1b3/1B2RQ1q/2Qr1p2/5b1B b - - 0 1 illegal: No possible last move
b1Q2r1B/2BQ1RpK/1B2Q2n/2nr2Rp/1q1p4/N1rprQ2/3P2k1/bN5b b - - 0 1 illegal: No possible last move
N3r3/Rb4pN/1np1pk1P/2b1bnb1/B4pQ1/1q3NB1/1n2R1rQ/1K2Q2Q b - - 0 1 illegal: No proof kernel
Q1b1b3/N1n1npr1/3K3k/1B6/BRrp1p1B/R1Q3bP/Qpq1r1Q1/1bN5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 d5 Kd3 g5 a4 b5 e4 g4 c4 b3 h3 g3 c5 b2 h6 g2 e5 b4 e6 b3 e7 Na6 c6 Be6 a5 Bg4 h7 Qb6 c7 Qe6 Qe2 Qc8 Be3 Be6 Na3 b1B+ Qc2 Bh6 Ne2 g1R Nb5 Rg7 Ra3 Bg5 Na7 Bh4 Bf2 Bg3 Nc1 Rb8 Be2 Rb4 Re1 b2 Bd1 Bf5+ Re4 Rc4 Be2 Qd8 c8Q Nc7 Qa8 Bc8 a6 Qd6 Bd1 Qc6 Be1 Bh2 Bh4 Bg3 Qb8 Qg6 Qb3 Qf5 Qa2 Qg6 Ke2 d3+ Kf3 d2 Be2 d1B Qd2 Rc2 Rb4 Rc4 Qc3 Ba4 Bd1 Bb5 Ba4 Bbd7 Qd2 Qc2 Qg2 Nh6 Bb5 Nf5 Ba4 Rhg8 h8Q d4 Qh6 Rh8 Qc6 Rh6 Qc5 Re6 Qa5 Rcc6 Qc5 Re2 Qc3 Rc4 Bb5 Rh7 Kg4 Bc6 Kg5 Rg7+ Kf6 Kd7 e8B+ Kd8 Bd7 Ne7 Bg4 Ke8 Bd7+ Kf8 Ba4 Be4 Ke5 Bc6+ Kd6 Kg8 Bb5 Kh7 Be8 Kh6 Ba4 B6b7 Beb5 Bf3 Nc6 Bfg4 a7 Bgd7 a8Q Be8 Na7
2BnQ2N/1BnQbp2/1k2Bb2/4pR2/n1prrpqR/3B2N1/2P3R1/Kb5n b - - 0 1 legal: proof: f4 a5 g4 g5 b4 d5 bxa5 h6 e4 dxe4 Bb2 Qd3 Bf6 gxf4 g5 Qd6 g6 Qd8 Bg5 hxg5 a4 Kd7 h4 Kc6 d4 b5 Kd2 e5 Kc1 g4 Kb2 e3 a6 g3 d5+ Kc5 a7 g2 h5 c6 d6 e2 g7 e1B a5 b4 a6 b3 d7 Qc7 d8Q Bh4 h6 Bf6 h7 Bd7 Qe8 B8e7 Rh5 Qc8 Bc4 Kb6 Nf3 g1N Be6 c5 Nbd2 Ne2 Rf5 Nc6 Nh4 Nd8 Nf1 Ng3 Ng6 Nh1 Ng3 Bc6 Ra3 Bd5 Ka1 Rb8 a8B b2+ Kb1 Bb3 a7 c4 Bc6 Rb7 a8B Rd7 Bf3 Rd4 Bg4 Re4 Bb7 Qd7 Qc1 Qd1 Bh3 Qg4 Qd1 Bd6 Ra8 Ne7 Qd5 Bc5 Qdd7 Nd5 Rc8 Rg8 h8R Bce7 Rh4 Rf8 g8B Nc7 Bh7 Rg8 Nh8 Rg6 Bf1 Rh6 Rh2 Rh3 Bd3 Rd4 Nf1 Re3 Ng3 Ree4 Rhh5 Ba4 Ka2 b1N Ka1 Bb3 Rh4 Nc3 Bg6 Na4 Bh5 Qg7 Bg4 Ba2 Nf1 Bb1 Qd5 Qg8 Rfh5 Nc3 Qf8 Ng3 Bd7 Nge2 Bge6 Nc6 Rf5 Qg2 Re8 Qg1 Bdc8 Na4 Qd7 Ng3 Qg8 Nh1 Qf8 Bb4 Qfe7 Ba3 Rg8 Nd8 Qee8 Bae7 Rg7 Qg6 Rg8 Qh5 Rg2 Qg4 Ng3
N2N2B1/k4p2/2Nn2Q1/b1bppR1K/PqQ1R3/1p1Rnn1b/3BN1r1/r4b2 b - - 0 1 illegal: No proof kernel
1KB1N1N1/1b1p2b1/pn5q/2QPr2k/N4r1b/QBRRN1p1/1pn2r2/rQ6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 Ba3 exf4 axb5 c5 b6 Rh7 b5 Rh8 Bb4 cxb4 Kf2 g5 e4 f5 c4 Kf7 h4 Kg6 d4 a6 b7 f3 Ke3 f2 e5 g3 h5+ Kh6 c5 f4+ Ke4 f3 Kd5 g4 b6 b3 e6 b2 e7 g2 Kd6 g3 d5 Kg5 h6 Kg6 h7 Bh6 e8N Bd2 c6 Be1 c7 Ba5 Nh3 g1B Nf4+ Kg5 Ra3 Bd2 Ng2 Ne7 Bc4 f1R Bb3 f2 Ne3 Nbc6 b8N Nb4 b7 Rf8 h8Q Nc2 Qd4 Rf4 Nc6 Kg6 b8Q Bb7 c8B Qb6 Qc5 Re1 Ng4 f1R Ne3 R1f2 Nc3 Kg5 Na4 Bc3 Qdd4 Ra1 Qd1 Bf6 Qb1 Kg6 Qc7 Bh4 Rh2 Kh5 Qc3 Rf1 Rd2 R1f2 Rd3 Rb8 Ng4 Qe3 Qb6 Qe6+ Kc7 Qh6 Qcc5 Re4 Qd6 Re5 Qbc5 Rf4 Rc3 Bd4 Ne3 Rf2 Rd3 Qg6 Qc4 Re4 Ba2 Qh6 Rac3 Ba8 Bb3 Bg7 Qa3 Rb4 Qc5 Re5 Bb7 Nc8 Ne7 Nb6 Kb8 Rbf4 Bc8 Bb7 Ng8
2B4b/1B1p1npb/1K3Q1R/1N3R2/b1r1r1P1/Q1bkp2R/1q1p4/QN1r1nR1 b - - 0 1 illegal: Other
4r1b1/2PBppp1/K7/n1Q1Nq1r/bQR5/2bRNB2/1Bpn1b1N/Nn2k3 b - - 0 1 illegal: No proof kernel forced: wxDB
1k4R1/2p3r1/5BRp/Bp2Q1n1/QQn2bBP/8/NNbnKpnb/1rB4q b - - 0 1 legal: proof: e4 d5 exd5 a5 b4 axb4 f4 g5 c3 bxc3 Ba3 gxf4 Bb2 Nh6 Bc1 Ng8 d4 Kd7 h4 e5 g4 f5 a4 b5 d6 h6 g5 f3 g6 e4 d5 e3 g7 f2+ Ke2 c2 a5 f4 a6 Ne7 g8Q Nec6 a7 Ne5 Ra6 Nbc6 Qd2 Nc4 Nc3 Rh7 Qg3 N6e5 Nf3 Nf7 Ne1 Rg7 Nd3 Ng5 Rg1 Be7 Bg2 f1N Nb2 Bf6 Be4 Be5 Na2 Qh8 Qa5 Nfd2 Qb4 Kd8 Bg6 Bf5 Bh5 Kc8 d7+ Kb7 d8B f3+ Ke1 f2+ Ke2 Qg8 d6 Qd5 d7 Qh1 Be7 Be4 d8B Bg6 Qg4 Bh2 Qf4 Bh7 Rg6 Kc8 Kd3 e2 Qe5 e1N+ Ke2 Ng2 Bf6 Kb7 Bde7 Rd8 Bc5 Rd3 Bb6 Rb3 Ba5 Ka8 Na4 Rb1 Bg4 Kb7 Ba3 c1B Nb2 Nde4 Rd1 Bcf4 Rd8 Ned2 Rg8 Ne6 Rg5 Bc2 Rg6 Kc6 a8Q+ Kd7 Bh5 Ng5 Qa7 Kc6 Qad4 Kb7 Bg4 Nh7 Qa4 Ng5 Qc3 Ka7 Qcb4 Kb7 Nd1 Ka7 Bc1 Kb7 Nb2 Ka7 Bd8 Kb8 Bf6+
nN6/k1pn1b1N/Bp4rn/br3bRq/K3Q2p/2NQb1RR/pP2R3/B7 b - - 0 1 illegal: Other
1B2K3/RP3n2/B1p1B3/r3r2p/3QN1N1/nbpQ1bpQ/2BR2nq/2k1bn2 b - - 0 1 illegal: No proof kernel
3r3Q/1p1bRKB1/p1n1Q1B1/1P4q1/1kB1b1QR/1prN1B1b/4p1N1/n1nb4 b - - 0 1 illegal: No proof kernel
8/1K3b2/PR2p1kb/bB2pb2/3N1r1p/1qqN2N1/BnnB1pQr/NR2Q3 b - - 0 1 illegal: No proof kernel
1q1b2kN/3R3p/N1K1bqn1/3p1R1B/3P4/rpnpNr2/BB4B1/q1Q1qQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 g5 Ke2 gxh4 Qd3 c4 Ke1 cxd3 Kd2 Kf7 Ke3 e5 Ke4 b5 Kd5 e4 g4 b3 c4 b4 a4 h3 f4 b2 g5 d6 g6+ Kg7 c5 e3 a5 e2 c6 e1Q c7 h2 f6+ Kh6 f5+ Qd2 a6 Qe3 g7 Be7 a7 Nd7 f7 Bh4 f8Q Qf6 Nf3 Bg3 Bg2 Qd2 Ne5 Nb6+ Kc6 Qf4 Ng4+ Kg5 Na3 b1Q Rf1 h1Q Ne3 Kh6 Nac2 Ba6 c8Q Na4 Bb2 Bh4 Bf3 Qg1 Bh5 Nc3 Ra5 Qgf2 Rd5 Bc4 Qf7 Q4h2 Qcc7 Rf8 a8B Qfe1 Bb7 Qa1 Rf3 Qe6 f6 Qhg3 Rff5 Ne7+ Kb6 Ra8 g8B Ng6 Kc6 Ra3 Ba8 Qe7 Qf8+ Qg7 f7 Be7 Qfb8 Bf6 f8N Bd8 Qf7 Qf6 Qc8 Nf4 Ng6 Ba2 Rb5 Be6 Rb7 Qh2 Rd7 Qhg3 Qe7 Qh2 Bf7 Rf8 Nh8 Kg7 Qc7 Ng6 Bb7 Bb3 Qe4 Qf4 Qh1 Be6 Qf1 Qfg3 Kb6 Qge5 Bg2 Q5g3 Kc6 Qf4 Bd5 Qfg3 Ba2 b3 Nb4 d5 Bf3 Qge5 Bg2 Qf4 Qc8 Qb8 Be8+ Kg8 Na6 Nf4 Bh5 Ng6 Re5 Qg7 Qc7 Rf3 Rf5 Qe5 Qa5 Qf6 Qc5 Na4 Qc2 Nc3 Qc1
4nBR1/3k1pRB/1qr1B3/2RK3n/prN4p/1N1QR1q1/b2b1pPn/3n3Q b - - 0 1 illegal: No possible last move, all moves rejected
n1K4n/r3P3/kq1B4/2RR2p1/bNqpQB1p/b2N2rN/1bB1p1b1/4Q2N b - - 0 1 illegal: No proof kernel
2B2N1Q/R1p1n3/q2r2b1/p1P5/1bq3Rp/4NK1B/R1nQn1p1/r3QnkR b - - 0 1 legal: proof: e4 d5 h4 dxe4 g4 g5 a4 b5 axb5 f6 b3 Kd7 Ba3 Ke8 Bc5 Qd7 Be3 gxh4 g5 Qd5 g6 Qd8 Bg5 fxg5 Ke2 Kd7 f4 Kd6 d4 Kd5 c4+ Kd6 b6 h5 f5 e5 b7 e3 f6 e4 d5 Ke5 d6 Kf4 b4 Kg3 b5 g4 d7 h3 g7 h2 f7 h4 b6 Ne7 g8B Rh6 Nd2 Nbc6 b8Q Rd6 b7 a6 Ra2 Nd4+ Ke1 e2 Nh3 Qe8 d8Q Qa4 Nf4 Bf5 Bh3 Bg6 Nf1+ Kf3 Qc1 g3 Ne6 g2 Ne3 Qa3 Kd2 Kf2 Qbc8 e1N b8R Qa4 Rb7 Nec2 Ra7 Qa3 Kd1 Ne2+ Qd2 Qb3 Qe8 Qc3 Qb8 Qd3 Qb2 Qa3 Qh8 Qc5 Rg1 h1N Re1 Ng3 Rh1 Qa5 Rh2 Kg1 Bh7 Nf1 c5 Bg7 f8R Bc3 Rf3 Bb4 Nf8 Qb5 Rf4 Qc4 Nf5 e3 Rg4 Rb8 Bg8 Rb5 Be6 Ra5 Bc8 Ra3 Qb2 a5 Qh8 Nf4 Kc1 e2 Ne3 e1Q+ Qd1 Qee2 Qd2 Qed3 Kd1 Nf5 Qe6 Ne7 Qee5 Qa6 Qe6 Qdc4 Qe4 Nd3 Ke2 Nf4+ Kf3 Ne2 Qe6 Rb3 Qee5 Rb1 Qg3 Rc1 Qge1 Ra1 Rh1+
q1N5/B1pK1Q1B/bqpB1p2/nRb4k/1q5P/2r1q2B/2Q1p1R1/2nN2rR b - - 0 1 illegal: No proof kernel
NkBR1nQ1/1pB2P2/1qnN4/1Qp3R1/1qrb3K/2rNQ2b/1pn2p2/5n1N b - - 0 1 illegal: No possible last move
Q2n2K1/pb1b3Q/kR1r1pR1/B3b3/1p1Q2PN/b4p2/2QqB2q/1R2Nrn1 b - - 0 1 illegal: No proof kernel
2Q1QnR1/p3N1p1/Rq6/3b4/4r1p1/K3Qqn1/P1B1r1qp/1NBkbQqR b - - 0 1 legal: proof: g4 d5 h4 c5 b4 f5 bxc5 fxg4 e4 dxe4 h5 Qd6 h6 Qxh6 Bc4 Qh5 Bf1 Qh2 d4 Kf7 Kd2 Kf6 Kc3 Kf5 Kb3 b5 f4 h5 c4 e5 c6 h4 c7 h3 c5 b4 d5 e3 c6 Ke4 d6 e2 f5 e1Q d7 Nh6 d8Q Bb7 c8R Qeg3+ Be3 Nd7 f6 Nf5 f7 Qf3 c7 Ng3 Bb5 Bd5+ Bc4 Qhg2 Ka4 b3 Bf2 b2 Be3 h2 Qc1 Bb4 f8Q Be1 Ne2 Rh6 Qd2 Re6 Nd4 Rb8 Ba6 Rb4+ Ka3 Re8 Qff6 Nf8 Nc6 Rc4 Qc1 Kd3 Ne7 Ke2 Rb8 e4 c8Q Qf4 Qcc3 Kd1 Bc1 Qff3 Qe3 Rc2 Bd3 Re2 Nf5 Re5 Ne7 Re6 Qe8 Re5 Nd2 b1Q Ra8 Qb5 Rb1 Qb6 Rb4 Re6 Ra4 Re5 Ra6 Re6 Qec5 e3 Nb1 Re4 Qf4 Rb2 Qff7 e2 Qe3 Qf5 Qf3 Ne6 Qe3 Qff1 Qff4 Bc3 Qg8 e1Q Qc4 Re2 Qgf7 Ba5 Rg8 Nf8 Qc8 Qff2 Qg6 Qeg1 Qge8 Be1 Qf6 Qff1 Qff2 Qf3 Qg2 Qf1f2 Qf1 Q2g2 Bc2+
1q1kB1KR/2r5/2NBp1p1/1n1QqNPb/R2rpQ2/b1r3pN/1QN4b/q7 b - - 0 1 illegal: No proof kernel
KB1n2B1/2NpQ2R/1r1Pb3/p1q2nkq/8/p1R5/N1rnp3/BRr1R1qQ b - - 0 1 legal: proof: b4 g5 e4 f5 h4 gxh4 a3 fxe4 a4 Bg7 a5 Bc3 a6 bxa6 b5 Bb4 c3 a5 cxb4 a4 Ke2 Kf7 Ke3 Kg6 Kd4 h5 Kc5 a5 g4 e5 d4 a3 f4 c6 d5 h3 b6 h2 b7 h4 g5 h3 b5 e3 b6 e4 d6 e2 Nc3 e1N Nb5 e3 Bc4 Nf3 Bb2 Nd2 Ne2 Nh6 Nec3 e2 Nc7 Ra6 Na2 Nf5 Bg8 Rh5 Re1 h1Q Rb1 h2 Ba1 Qf3 Rb3 h1Q Rc3 Rh3 Qb1 Qh5 Qe4 Re3 Qf3 Qg1 Qh1 Kg7 g6 Kh6 g7 Qdg5 Bb3 Kg6 g8R+ Kh6 Rg7 Re4+ Re3 Rb4 Be6 Rb2 Rh7+ Kg6 Bg8 Rc2+ Nc3 Ng7+ f5+ Kf6 Kd4 c5+ Kd5 c4 Na2+ c3 Kc5 Nc6 b8R Nd8 b7 Rc6+ Kb5 Ra6 Rh3 Q5e3 Rf3 Kg5 f6 Nf5 f7 Qa7 f8Q Qaf2 Ra8 Qa7 b8B Bb7 Re3 Bd5 Qe7+ Kg6 Rh3 Be6 Rd3 Qad4 Ra7 Qde3 Rb7 Rc6 Rb6 Qd4 Ka6 Qc5 Qf8 Kg5 Ka7 Qgf2 Ka8 Qg1 Rbb1 Rb6 Rec1 Rcb2 Qe8 c2 Re1 c1R Rc3 Rbc2 Qe7+
N7/KBnbpN1p/1nqB1b2/2p2p2/3rP3/N2R1qnQ/q2R1R1b/1Nk3Q1 b - - 0 1 legal: proof: c4 b5 g4 a5 h4 g5 f4 gxf4 g5 d5 b4 Ra6 h5 Rg6 hxg6 axb4 Rh3 dxc4 Rh2 Kd7 Rh1 Ke8 Na3 Kd7 Kf2 Kd6 e4 Kc5 d4+ Kb6 d5 Kc5 g7 f5 g6 f3 Ke3 b3 d6 Kb4 Kd4 c3 d7 f2 Nf3 b2 Bf4 b1Q Rh3 c2 Nc4 c1B a4 Qa2 a5 Na6 Na3 Qe8 d8R Nf6 g8N Bg7 Qd3 Nd5+ Be5 c6 Nd2 Bf6 g7 Nac7 Nh6 Be6 Be2 f1N g8Q Ka4 Kc5 b4 Qg7 b3 Qg2 b2 Nf7 b1Q Rd6 Qab3 Ra2 Rf8 Rb2 Q1a2 Ndb1 Bf4 Qe3 Bc8 Ba6 Bh2 Rf2 Qd7 Rhf3 Rd8 Bb7 Qd3 Rd2 Kb3 Rff2 Qe6 Qeh3 Qf3 Bf4 Ng3 Be5 Nb4 Kb6 c5 Bf4 Qd7 R6d5 Qe8 R5d4 Rd5 Bd6 Qc6+ Ka7 Bd7 Kb8 Qc2 R4d3+ Kb2 Ng5 Kc1 Nf7 Rd4 a6 Ne8 a7 Qa2 a8N Nd5 Ka7 Nb6 Bf4 Nc7 Be5 Qb2 Bd6 Qa2 Qg1+
1RB1n1K1/QRq3n1/5kB1/ppB1N2n/p4Rnp/r2nrN2/2B2r1P/Q4b2 b - - 0 1 illegal: No proof kernel
1N2Qn1r/1Bn2NK1/pQ6/1p4N1/Pn4qR/1kRrNpqB/1p2n2B/3n2b1 b - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 g4 dxe4 g5 c5 h3 Bg4 hxg4 cxb4 Ke2 Kd7 a4 Kd6 d4 Kd5 g6 Kc4 c3 f5 d5 e5 d6 b5 g5 h5 d7 b3 g7 h4 g6 h3 Ba3 b2 Qd3+ Kb3 Rh2 a6 Qe3 Qc8 d8N Bc5 Nc6 Ne7 g8N Nd5 g7 Nc7 Nh6 Nd7 Nf3 Nf8 Ng5 f3+ Kd2 f4 g8Q+ Qe6 Nb8 f2 Nhf7 f3 Qg6 Ba7 Bd6 Qg4 Qb6 e3+ Kd3 e4+ Kd4 e2 Ke5 e1N Kf6 e3 c4 e2 c5 Nc2 c6 e1Q Kg7 Nb4 Bg2 f1N Na3 Ng3 Nc4 Qf2 Rc1 Ne2 Ne3 Qfg3 Rhh1 h2 Bh3 Nbd5 Rc4 Nb4 Rhc1 h1N R1c3+ Ka2 Qe4 Nf2 Qe8 Nd1 Rd4 Qe6 Rh4 Qeg4 Nd7 Rd8 Nb8 Qf2 Be5 Rd3 Bh2 Qfg3 Qb7 Na8 c7 Bc5 c8B Nc7 Qa7 Bb6 Bb7 Bc5 Nf5 Bf2 Qb6 Bg1 Rc2 Ka3 Ne3 Kb3 Rc3+
1B2R1qn/2p1n3/q3nQ1N/1Bk5/n1Prp3/1BrN1p1Q/2b2p1n/KN2B2R b - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 g4 dxe4 h4 a5 g5 Bh6 g6 Bg5 hxg5 axb4 a4 Kd7 c4 Kc6 d4 b5 Kd2 f5 Kc2 h5 Kb2 e5 a5 h4 g7 e3 g6 f3 d5+ Kc5 d6 e2 a6 e1N d7 h3 a7 b3 Nd2 f4 Ra4 b4 Nb1 f2 Qh5 f3 Bg5 h2 Ra6 Nc6 Nh3 Nd4 Bh4 Ne7 g8Q Ne6 g7 Ng2 Qhh7 Ngf4 Qf8 Ng6 Qf6 Qg8 d8B e4 Bg3 Bd7 Nf4 Ba4 Qh3 Rh7 Ka1 Nh8 Be2 b2+ Ka2 Rh5 Bd1 Rd5 Bb3 Rd4 Bh4 Rb8 a8B Rb6 Bc6 Rb8 Re1 h1N Ra8 Ng3 Rh1 Nf1 Bb5 Nh2 Bg5 Rb6 Rb8 Rbd6 Rc8 Rd3 Bh6 Rc3 Ra8 Rd4 Bg5 Qf7 g8N Qh7 Nh6 Qg8 Nd2 b1N Ka1 Rcd3 Rc8 Nc3 Nb1 Re3 Ng2 Red3 Bd2 Re3 Be1 Red3 Ba2 Bc2 Nf4 Na4 Bb3 Rc3 Qg7 Nd5 Bg5 Ne7 Qf6 Bd1 Bc2 b3 Re8 b2+ Ka2 Qg7 Bb3 Bc2 Nd3+ Kd6 Be3 Qg8 Nd2 b1Q+ Ka3 Qc1+ Ka2 Qd1 Nb1 Qc1 Ka1 Qa3+ Ba2 Qc5 Bb3 Qb6 Bd7 Qa6 Bb5 Rd5 Ba7 Rd4 Qff5 Qb7 Bb8 Qa6 Ne5 Kc5 Qf8 Qc8 Qf6 Qa6 Nd3+
QK2Bk1q/1RB1pp2/b2Qb2b/1b2Nq2/RR3bQr/1p2pPN1/1R3r2/2n5 b - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 Ne2 a5 Ng1 axb4 c3 gxh4 Rh3 b5 Rh2 b3 Rh1 Nc6 c4 b4 Be2 Na7 Bf1 Nb5 cxb5 Ra4 Qe2 Ra5 Qd1 Ra8 Ke2 h5 Ke3 c5 g4 b2 a4 h3 d4 b3 d5 h4 a5 c4 Kd4 c3 Kc5 h2 Kc6 h3 d6 c2 g5 Ra6+ b6 Bd7+ Kb7 Ra8 a6 Rh5 f3 Nf6 a7 Rh7 g6 Nd5 g7 Rh4 g8Q Be6 Ra4 Nf4 Ne2 Nd3 Bf4 c1B Na3 b1B Qg4 Bh6 d7+ Kf8 Bc7 Bcf4 Ng3 e3 Nc4 Nc1 Qd6 Bd3 Ne5 Bb5 Be2 Rc8 a8Q Qe8 Rf1 h1Q d8R h2 Rf2 Qg2 Ka7 h1B b7 Qh3 b8R Bg2 Rb7 Bf1 Bc4 Ba6 Bb5 Bfc4 Bc6 Bcb5 Rd7 Rd8 Rb2 Rc8 Qh5 Qf5 Qg4 Bbc4 Rbb4 Bcb5 Bb6 Qd8 Rb7 Qe8 Bd7 Rc2 Bc7 Rf2 Bc6 Qc8 Be8 Qd8 Qd2 Qd4+ Kb8 Qc3 Qd6 Qd4 Nc4 Qh8 Ne5
K4N2/1B3Rp1/Rqr5/NqQR1p1p/1r1qR2n/Bbqn1q2/Q4BPp/2k5 b - - 0 1 illegal: No possible last move
n2Rq1N1/p3qRkp/Q4p2/Q2bbP2/Nr1npB1B/b2q3N/3bB1B1/7K b - - 0 1 legal: proof: c4 g5 d4 d5 a4 dxc4 e4 b5 h4 bxa4 d5 gxh4 e5 Na6 Bd3 Rb8 Be2 Rb6 Bf1 Rd6 exd6 Bg7 Qc2 Bh6 Qd1 Bf8 g4 e5 b4 c5 f4 c3 Kf2 e4 Kg2 c4 b5 c2 b6 a3 d7+ Ke7 g5 c3 g6 Kf6 g7 a2 d6 Nh6 g8B Kg7 b7 Qf6 d8B Be6 b8N Nc7 d7 Nf5 Qe2 Na8 Nc6 Ba3 Qa6 h3+ Kh2 Qg6 Bh4 f6 d8Q Bf7 Qda5 Bc4 Be6 Rb8 Ne7 Rb3 Bd2 c1Q Bg2 c2 Nc3 Qb1 Ng8 c1B Na4 Rb2 Bf2 Qf7 Bc8 Qc2 Rb1 a1B Bd7 Qc3 Bb5 Qe7 Bg3 Bf7 Be2 Rb5 Bde1 Qc2 Bef2 Be5 Be3 Qc6 Bh4 Rb8 Rb2 Ba2 Rc2 Rb4 Bd2 Qcd7 Rc8 Qc6 Rf8 Qce8 Nf3 Bb3 Rd1 Bc4 Be3 Bf7 Rd8 Bd5 Kg1 Nd4 f5 Bd2 Bf4 Qb5 Bhg3 Qd3 Ng5 h2+ Kf1 h1Q+ Kf2 Qc1 Bh4 Qcc3 Kg1 Qe8 Nh3 Qc5 Kh1 Qce7 Rf7+
q2RNk1R/1qp5/pp3NB1/bP1BQb1R/1r1Q1p1B/B6r/7n/br1bK3 b - - 0 1 legal: proof: f4 d5 h4 g5 c4 gxh4 a4 dxc4 a5 e5 Ra2 exf4 Ra1 Nd7 a6 b6 Ra3 Nc5 Ra1 Nb7 axb7 Bf5 Ra4 Bd7 Ra1 Bc8 b8R f5 e4 h5 d4 a6 b4 f3 g4 h3 g5 f4 e5 h2 d5 h4 e6 h3 g6 c3 g7 c2 d6 Bd7 e7 Bf5 b5 Nf6 g8B Bg7 Ne2 Ng4 Ba3 c1B Nbc3 Be3 Qd4 f2+ Kd1 Rh6 Bd5 Bd2 Ne4 Ba5 N2g3 Qc8 Be2 f1B Bd3 Re6 Nh5 Be2+ Kc1 Bd1 d7+ Kf7 d8B Qb7 Nhf6 Bh8 e8Q+ Kg7 Nc5 Re4 Qee5 Kf8 Ne8 Bg7 Bh4 Bf6 Re1 h1Q Rd8 h2 Re3 Qg2 Rh3 h1R Ra2 Qf3 Rah2 Rhe1 Rh1 Nh2 Bc2 R1e3 Bb1 Rb3 Bc2 Re1 Ne4+ Rb4 Kd2 Bh8 N4f6 Rc8 Bf7 Qa8 Bcb3 Qfb7 Bg6 Rf1 Rd6 Rd8 Bd5 Rf3 Rd7 Rb3 Ke1 Rb1 Re7 Rd6 Rd7 Rc6 Rd8 Rc3 Rg3 Bg7 Rg5 Rh3 Ne4 Bf6 Rh5 Be7 N4f6 Bc5 Qd3 Bd4 Qc4 Bb2 Qcd4 Ba1 Rh6 Rg3 Bg5 Ng4 R1h5 Nh2 Bh4 Rh3 Rh8#
2QR2b1/r1Br1N2/1KR1r3/1QN1r1Q1/Bk1Bpqp1/1p6/1Ppbbq2/1Q2n3 b - - 0 1 illegal: No proof kernel
1nQ2R2/r3Q1p1/5b2/B1rBp2q/2rpb1rB/6PQ/Qqq2NpK/2k1NR2 b - - 0 1 illegal: No proof kernel
2Q3n1/1B1R2RK/p1p1r1nQ/pRqq1RBk/8/b4N2/p1P5/bn1b1BNb b - - 0 1 illegal: Other
1K3k2/1Q2pQ1n/2bBP1p1/2Rn1bNR/nBNb4/3B1b1r/B2pp2Q/3r3r b - - 0 1 illegal: No possible last move, all moves rejected
n1nQ3K/Q3R1p1/1N1Bb3/2R1n3/pr1r3R/4qNpk/PBr1p1n1/r2B1R2 b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 h5 Nf3 b5 Ng1 bxc4 f4 hxg4 Qb3 e5 Qc3 e3 Qc2 e4 Qb3 Bd6 Qd1 Be5 fxe5 Qd4 Qc2 Qd5 Qd1 Qd8 Ke2 Ke7 h4 Ke6 d4 Kf5 b4 a5 h5 c5 h6 c3 d5 c4 h7 c2 e6 g3 d6 Kg4 e7 f5 e8Q c3 b5 a4 d7 f4 b6 Na6 b7 Qb6 b8R Ne7 d8B Nc7 Qd4 Be6 Rc8 Rb8 Na3 Na8 Rc5 Nc8 Bb2 c1R Be7 c2 Nf3 Rg8 Qed7 Rd8 h8R Qa7 Qd1 Rb4 Re8 Qb6 Qc7 Rdd4 Bd6 Qa7 Re7 Qb6 Ke1 e2 Nc4 Qa7 Bg2 Qb6 Rf1 Qa7 Bh1 Qb6 Qa7 Kh3 Nh2 f3 Rb1 Qc6 Nb6 Qe8 Ra1 Rdc4 Kd2 e1N Ke3 f2 Kf4 e3+ Ke5 Rd4 Bf3 Ng2 Rh1 f1N Bh5 Rb1 Nf3+ Nh2 Qd3 Rg1 Rf1 c1R Qd1 Rc2 Qd2 Bf7 Kf5 Be6+ Kg5 Qd7 Kg6 Qe8+ Kh7 e2 Bf7 Qb5 Bg8 Qd3+ Kh8 Qe3 Bf7 Bd7 Bb3 Be6 Rf2 Ra1 Rff1 Rc3 Bd1 Rcc4 Rhg1 Ng4 Qd3 Ne5 Rh1+ Kg4 Qh7 Rc3 Qg8 Rc2 Qd8 Qg5 Rh5 Qe3 Rg5+ Kh3 Rg4 Rdc4 Re4 Rd4 Rh4+
bR1RQr2/ppp1b1Q1/rrrq1Bn1/4Q3/1PbN2BR/7R/pb1K3k/4N3 b - - 0 1 illegal: Other
Q3bnnR/RN5r/1B1Qp3/p1n2NRN/2p3B1/4PK2/2kp3b/nbbN3r b - - 0 1 illegal: No proof kernel
1q5r/3R3Q/1r1np2p/p2b3B/B2QP2n/Q3Np2/p2Rr1bk/K1N1b1BB b - - 0 1 legal: proof: f4 c5 a4 g5 fxg5 b5 h4 bxa4 d4 cxd4 h5 Qc7 h6 Qd6 Nh3 Qxh6 Ng1 Qh2 Kd2 f5 b4 Kf7 g4 Kg6 c4 d5 Kc2 a5 Kb2 h6 b5 f4 b6 d3 c5 d4 c6 f3 c7 d2 e4 d3 b7 e6 Nc3 Bc5 Nge2 Ra7 Bg2 Bd4 Ra2 a3+ Ka1 Na6 b8Q Ne7 Qb2 Nf5 Nd5 Nh4 Ne3 Bb7 c8B Nc7 Bd7 Bd5 Ba4 Nb5 Rg1 Qc7 Bh1 Nd6 Qb3 Bc5 Qd4 d1B Rd2 a2 Qa3 Ra6 Bb2 Qb6 Nc1 Be2 Rgd1 Bf1 Bc3 Qb7 Bb4 Ba7 Bc5 Qb8 Bb6 Bg2 Bc5 Kf7 g6+ Ke7 g5 Rb6 g7 Kf7 g8B+ Kg6 Nc2 Kh5 g6 Kg4 g7 Kh3 Ne3 Kg3 Bf7 Kh2 Rf2 d2 g8Q Rh7 Bh5 Rh8 Rg1 d1R Rd2 Re1 Qh7 Re2 Rgd1 Ra6 Rb2 Bb6 Rdd2 Bd8 Rb7 Bf6 Rd7 Be5 Bb6 Bg3 Bd8 Rb6 Bg5 Nhf5 Bh4 Be1 Bf2 Nh4 Bg1+
1q3Q1n/3pn1pB/1b2r2B/k2R2N1/pR1Np3/b2nPQRK/p6b/2rR2B1 b - - 0 1 illegal: No proof kernel
N1b5/1Np1k1N1/KppBb1n1/QB1rbnR1/3Np2q/6Rr/rP5p/4Q1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
qq2nNQ1/2R5/nb2Bb1K/1N1B2B1/1ppQQp1P/3r2k1/2p1b2p/Rr5B b - - 0 1 illegal: No proof kernel
2b2qr1/1b1q1Q2/k2N1Bb1/Q1ppn3/p2p1KnB/N1Rr2p1/P1B2R1Q/3Q4 b - - 0 1 illegal: No proof kernel
QK4b1/2RR3n/2q3N1/1pkbn2p/qP3p1r/1b1p1QBr/1Q4Bp/5RNR b - - 0 1 illegal: No possible last move, all moves rejected
QNk4R/b1b1r3/4p1B1/Pbp1BB2/pr1B2q1/3p3R/pqRK3N/n4Q1n b - - 0 1 illegal: No proof kernel
3K2Qb/3Q1Nr1/1B1pN3/RBbr1pn1/1q1P2pb/pB1qn1B1/3R1p2/1k5N b - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 g4 bxa4 b5 Ba6 b6 Bb5 cxb5 hxg4 Kf2 Ke7 e4 Kf6 h4 Ke5 d3 Kd4 b7 f5 e5 a5 b6 g5 h5 c5 e6 g3+ Kf3 g2 e7 a3 e8B a2 h6 g4+ Ke2 a4 h7 f3+ Kd2 c4 Na3 f2 Bf7 Nc6 b8Q Ne5 b7 c3+ Ke2 c2 Be3+ Kc3 Bb3 Kb2 Nb5 c1Q Nc7 Nc4 Bb6 Ra7 Ne6 Qc3 Qa8 Ra5 b8B Bc5 Bg3 Nh6 Qb8 Rf8 h8N Rg8 Nf7 Rg7 Rh3 Qe7 Qg8 Ne3 Rh1 Qd4 Kd2 Qdd6 Ne2 g1B Rh3 Ba3 Rh1 Rd5 Rh3 Bc5 Rh1 Ka3 Kc3 Bh2 Rg1 Ng2 Kc4 Kb2 Kb5 Ne3 Ka6 Qd8 Kb7 a3 Rc1 Q8e7 Kc8 a1B Rc3 Rg5 Rc4 Rg7 Qd2+ Kb1 Ra4 Bf6 Ra5 Bh4 Rh1 Qf6 Rg1 Qc3 Rh1 Rg5 Kd8 Qb4 Qc3 Rg6+ Qf6 Rg7 d4 Qc6 Qe7 d6 Rg1 Qcb5 Rh1 Rg5 Qd7 Qd3 Be5 Bf4 Ng3 Rg7+ Nfg5 Qc2 Bb5+ Qd1 Rh3 Qd3 Nh1 Bh2 Bg3 Nf7+ Ke8 Ne5 Nf7 Nf3 Bf4 Ng5 Kd8 Nc2 Re3 B2g3 Re2 Ne3 Be5 Bf4 Bf6 Be5 Rd2 Rh7 Be7 Bh8 Bf6 Rg7 Be5 Nd1 Bh2 Ne3 Bg3
1N6/1QNb2Rq/1kpBnNNn/1Pr2pp1/1pb1q3/8/1K2RpQ1/1B1Q1rb1 b - - 0 1 illegal: No proof kernel
k1R5/2R1n3/p6Q/qprp4/1PQbbrn1/3nRN2/pB1pK2B/1N1N1R1q b - - 0 1 illegal: No possible last move, all moves rejected
Rn5r/k2r2pR/q3N1p1/2N4B/1pRp1qQK/2Qn2P1/2B3pB/r2Rb1b1 b - - 0 1 illegal: No possible last move, all moves rejected
5q1q/1R2N1p1/2Kppbr1/b3B1N1/n1BNP2r/3p1p1k/n1Q1Q2b/Q3R1Q1 b - - 0 1 illegal: No extended proof kernel
kb3r2/N1NQ1p2/5P2/3R1KQ1/1p6/qpqpBN1B/bn1rp1q1/Q3QR1n b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 c6 d5 cxd5 gxh5 dxe4 Ba6 e3 Bb5 Qa5 Bf1 Qd8 Ke2 g5 Kf3 d5 a4 Kd7 Kg4 b5 h4 e5 f4 Kc7+ f5 Kb7 c4 d4 a5 e4 h6 d3 h5 e2 c5 e1Q h7 e3 h6 e2 Qd2 Nc6 Nc3 Nge7 Nf3 Qd6 Rh5 Be6 Bh3 Ba2 a6+ Ka7 f6 b3 Nd5 Nf5 Nc7 Na5 c6 Qa3 Qd1 b4 Be3+ Kb8 Qc1 Qd2 Qe1 Qc3 Rb1 Rg8 h8Q Ng3 h7 Nc4 Qg7 Nh1 h8Q Bd6 Kf5 g4 Qg5 g3 Rc1 Rd8 Qe8 g2 Qd7 g1Q Ra1 Nb2 Rc1 Qd4 Ra1 Qg2 Rb1 Ka7 Rc1 Kb6 a7 Rf8 Ra1 Rac8 a8Q Bg3 Ne6 Be5 c7 Qc5 Qa5+ Kb7 Rb1 Ra8 c8N+ Kb8 Rd1 Qc3 Nc7 Ra6 Na7 Bg3 Ne8 Ka8 Nc7+ Kb7 Qc5 Na4 Rh4 Rc6 Rg4 Qd4 Ne8+ Bc7 Qf1 Qc4 Qcd4 Ka8 Qa1 Bb8 Rd4 Nb2 Rd5 Qc1 Qf2 Rc2 Rf1 Rd2 Qe1 Qc3 Nc7+
1QbB1n2/b1N2ppq/3Np1r1/Qn4rb/1q3R1N/3BBpNP/1kp5/3R2K1 b - - 0 1 illegal: No proof kernel
B2K4/R2pQR1N/3Q2q1/rp4pn/1P2Rq2/BnN1p2r/2pb1kq1/B5bR b - - 0 1 illegal: No proof kernel
1rrN4/b2pNB2/1p1b1pqN/3qn2B/1p1k3p/b1B2BQ1/2QnRPK1/6R1 b - - 0 1 illegal: No possible last move, all moves rejected
2r1b1B1/2p2k1q/r5NQ/2pPb3/RBB2p1p/bB1qR3/n2Q3p/1n1QN2K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 c4 exf4 c5 d6 Ra6 dxc5 Ra5 Qd5 Ra1 Qd8 Kf2 f5 g4 a5 Kg2 h5 e4 a4 d4 a3 b4 a2 d5 Nf6 g5 Na6 e5 Nb8 g6 Ke7 b6 Rh7 b5 Ra3 b7 Bh6 g7 Qe8 b6 Ne4 e6 Nc3 Rh3 f3+ Kh1 f2 Nd2 Ra6 Ndf3 Nc6 b8Q Nb4 b7 Nb1 Bd2 Qg8 Bc4 f1Q Ne5 Rh8 Re3 Qd3 Ngf3 h3 Ne1 h4 Ng6+ Ke8 e7 h2 Qa7 Qh7 b8Q Kf7 Qbb6 Bd7 Qab7 Rc8 e8B+ Kg8 Qb8 Bf4 Qa5 Be5 Qbb6 f4 Bb3 Ba4 Bb5 Kf7 B5c4 Be8 Qd6 Nc6 Qc3 Nb4 Qcc2 Nc6 Ba5 Nb4 Qcd2 Bb2 Nf8 Bc1 Qh6 Ba3 Ng6 Nc3 Rc1 a1B Rc2 Nba2 Bb4 Nb1 Rb2 Nc1 Ra2 Be5 Ra1 Bab2 Ra3 Na2 Ra4 Ba3 g8B+
2B4r/1bpP4/1q2nN1B/2bQ4/rRnN1N1q/QKpr1p1p/Q2p2R1/Nk6 b - - 0 1 illegal: No possible last move
rQ6/p2qqk1n/b2QNqpb/BN5B/1pn2P2/N6r/1R1Rp2p/2N1KQ2 b - - 0 1 illegal: No proof kernel
2B3r1/7Q/Nnr5/KpQ1RBq1/p2p1bN1/3bP3/BpN3pb/Rnb1B2k b - - 0 1 illegal: No proof kernel
4n1K1/2rr2N1/1p4Qb/3Qp1nR/1RBp1qQ1/2b2pp1/B3PN2/bQNk3b b - - 0 1 illegal: No proof kernel
3q1R1N/Nppr2p1/2k1p1Pb/1R4BQ/1n2p3/KQ2bQ2/B5b1/1q1nB1Bn b - - 0 1 illegal: No proof kernel
K3Rb2/p2NN3/4qr2/1pr1p1Qp/4P1bB/b3R1pn/2q4R/BkB1QBr1 b - - 0 1 illegal: No proof kernel
1R2q3/1q2B2r/2rp3N/1pBPnKQR/2R3BQ/pp3R1b/p3q1b1/3kb1N1 b - - 0 1 illegal: Other
3bn3/p4N2/1q1Q2k1/bb3B1q/QNppN1pQ/Kp4q1/NnRB2Pr/1R6 b - - 0 1 illegal: No proof kernel
B4Rb1/Q3pp2/bpQ2q2/1p1nQP2/1k1NKp1r/6BB/1Bn1n2R/4bqN1 b - - 0 1 illegal: No proof kernel
1R1K2Q1/p1p2p1q/4B1Nn/1r3n2/R3prQ1/1qPBk3/2p1N1nB/1qbR2R1 b - - 0 1 illegal: No proof kernel
5N2/KQqp1BN1/1p6/B2Nbnp1/3q1Qk1/2R1pqp1/r1RP1n1B/1n1r3B b - - 0 1 illegal: No possible last move, all moves rejected
4Q1B1/p5N1/3p2nK/3r1N1R/1RBqpBbb/N2P1r1p/r3pQNr/4r1k1 b - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b6 b5 Nc6 a5 bxa5 b6 a4 Ra3 Nd4 Ra1 Nb5 cxb5 Ba6 Bd3 Bb7 Bf1 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 h5 f3 c4 b7 e3 b8Q c3 b6 a3 b7 e2 Qe1 a2 Na3 h3 Qg3 h2 Rb1 a1R Nh3 c2 Rb4 Ra2 g5+ Ke6 g6 Kd5 g7 e5+ Kf5 Be7 Kg6 Bh4 f4 d6 f5 Qb6 f6 Bg4 f7 Qd4 f8N Ke4 Qe8 Ne7+ Kf7 Rc8 g8B Ng6 Kg7 Rc3 b8N Rf3 Nc6 Rh6 Ne7 Kd3 Bb2 c1R Ne6 Rc5 Nf5 Rd5 Nhf4+ Ke4 Bc1 Rh8 Bh3 Rh6 Ng2 Kd3 Rf1 h1R Rf2 Re1 Rf1 Be7 Rh1 h4 Rh2 Rh5 Rh1 Rg5 Kh6 e4 Nfe3 Rgf5 Ng7 Rf2 Rh2 R5f3 Rh1 Bh5 Bhe6 Bg4 Nef5 Bd8 Nge3 Rh2 Ng2 h3 Rf1 Re3 Rf4 Rf3 Bef7 Bh5 Rh4 Bg4 Rh5 Bh4 Nb5 Kc2 d3 Kd1 Na3 Rb5 Ne6 Reh1 Neg7 Rg1 Bc4 Rd5 Nf4 Rgf1 Qg1 Ke1 Qg2 Rfh1 Qg3+ Kf1 Ng2 Rg1 Qf4 Kf2 Bd2 Rf1 Qg3+ Kg1 Bf4 Re1 Qf2+
b6r/N2N2p1/nq1p1Q1p/nNQQ3Q/pp1R1r2/1BB1K3/rP1n3k/2r1R3 b - - 0 1 illegal: No proof kernel
n1Q1R1N1/3q1nbK/p1BR1p2/1np3k1/2P2N1B/R1B2r1p/b1Qp4/R4qn1 b - - 0 1 legal: proof: d4 g5 g4 e5 f4 exd4 h4 gxf4 g5 a6 a4 b5 h5 bxa4 Nc3 Ra7 Nb1 Rb7 Qd2 Rb6 Qd1 Rg6 hxg6 Ba3 Rh6 Bd6 Rh1 Bf8 Kf2 Ke7 Kf3 c5 Ke4 h5 Kf5 f6 e4 d3 b4 d2 g7 d5+ Kg6 d4 e5 d3 e6 h4 b5 f3 b6 a3 b7 a2 Rh3 f2 Bb2 Nh6 g8Q Nd7 b8B Bg7 Nc3 Nb6 Bg3 Na8 Nge2 Qd7 Nf4 Nf7 Bg2 f1N Bc6 Nh2 Ncd5+ Kd6 c3 Ke5 e7 Nf3 Qc2 d1N c4+ Nc3 Bf2 d2 Qd8 Bb7 Qc8 Ng1 Bg3 Rd8 Kh7 Rg8 g6 Re8 Qa4 Kf5 Qc2+ Kg5 Be1 Nb5 Ra3 Rg8 e8R h3 Re6 Re8 Rd6 Re3 Ne7 Rc3 Ng8 Rf3 Rb1 a1Q Bc3 Qa2 Ra1 Qb1 Be4 Bd5 Bf2 Be6 Bc6 Bf5 Bg3 Qf1 Bh4+ Kg4 Qb3 Bb1 Qc2 Bf8 g7 Ba2 Ne7 Nb6 g8R+ Bg7 Re8 Na8 Bf2 Kg5 Ng8 Nh8 Be1 Nf7 Bh4+
1N1n1Q2/Q2R1b2/6pQ/qB1Q2R1/b1pBb3/2pp2n1/rqP1p2K/k1bRN3 b - - 0 1 illegal: No proof kernel
4b2B/3qNpQr/pN2nK2/ppb1BPQ1/3RB1qn/p3Nk2/2n2n2/2R2N2 b - - 0 1 illegal: Other
B2nr3/Q3qp1p/1K2R1R1/1p2N1Q1/2BB4/bRbp1B1p/p1NP1r2/3k2bn b - - 0 1 illegal: No proof kernel
1nR2Bb1/3Q4/1b1pkPBp/2p3Q1/NN2q2q/R1p2B2/r2p1pK1/nQ3rQ1 b - - 0 1 illegal: No proof kernel
R3r3/R2p2B1/2pb4/Qp1pp1RR/N2NPn2/kb3p2/2p2KQq/Br2rB2 b - - 0 1 illegal: Other
1Q4b1/8/1pr2Q1B/k1np2rp/N1pn3p/1NbPRpn1/3pB2B/1KQB1R2 b - - 0 1 illegal: No proof kernel
1b4R1/1qN2n2/1B1b1b1r/1nb1b3/1P1Rr1R1/1B1Rq1rR/1R5r/k2KQN2 b - - 0 1 legal: proof: e4 f5 d4 fxe4 a3 c5 Qd2 b5 Qd1 b4 axb4 cxd4 g4 a5 b3 h5 Na3 hxg4 Nf3 a4 Ng1 Ba6 Nb1 a3 Qf3 Bb5 Qd1 Ba4 bxa4 Qc8 Ne2 Qc7 Ng1 Qd8 f4 Kf7 c4 Kf6 h4 e5 f5 d5 c5 g5 h5 a2 h6 d3 c6 e3 c7 e2 c8R d4 h7 d2+ Kf2 e1Q+ Kg2 d3 a5 g3 Kf3 g4+ Kg2 e4 a6 Ke5 a7 Kd4 f6 e3 f7 e2 Rh3 Nc6 Ba3 Qb6 Bc1 Qb7 Re8 Nh6 Re6 Re8 a8R Na7+ Rc6 Nb5 Rh5 Re4 Rh2 Bd6 Rg8 Bb8 f8R Nf7 Rg5 Be5 Qb3 d1R Rcc8 d2 Nc3 Bf6 Rb1 a1B Rc4+ Kd3 Qa3 Kc2 Rb3 Bb2 Nd5+ Kb1 Rf3 Bbd4 Qb3+ Ka1 Rfg8 Ba7 Qe3 Bb8 Nc7 Qf2+ Kh1 e1B Qe2 Qfa7 Kg2 Bf2 Rfc3 B2d4 Nf3 Qa3 Qe3 Bde5 Kg1 g2 Kf2 Bd6 Ke2 g3 Rg4 g1B Rf2 g2 Nh2 Qaa7 Rb3 Qab6 Rb2 Qc5 Rf3 Bf2 Rfg3 g1B Rf3 Bfg3 Bg2 Re6 Qe4 Bgd4 Rd3 Rh1 Nf1 Rh2 Qe5 Bdf2 Bd5 Qcb6 Qe3 Re4 Be6 Bge5 Bd5 Rf4 Re4 Rf3 Bb3 d1R Rc4 Qd4 Qe4 Qda7 Be3 Re1+ Kd2 Re2+ Kd1 Rg3 Bc5 Bg1 Qe3 Qab6 Qf2 Re4 Qe1 Q6c6 Ba7 Qc5 Bb6 Qf2 Re8 Qf4 Reg8 Bgc5 Rcd4 Qe3 Rf8 Rg8 h8R Rg6 Rh3 Rh6 Rfg8
1b2b1Q1/2Nq1b2/2N5/2K1Pq1R/r2rR1r1/Nk2B1B1/n1Nr4/1N1nb1Nr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 Kd6 d4 g5 Kd2 f5 Kc3 c5 Kc4 a5 e4 a4 b6 a3 h5 f4 h6 a2 h7 g4 b5 f3 b7 f2 b6 f1B+ Qe2 Nh6 Nc3 Bd7 Nb1 Nf5 Nf3 g1B Ba3 g2 Rh2 g3 Rh4 Bh2 Rh5 g1Q Bc1 g2 Be3 Nc6 b8N Be8 b7 Qf2 Na6 g1R b8N Rg4 Ng1 Qd7 Nc7 Nb4 Nc6 Rd8 Ne5 Be7 Qd3 Bh4 Qe2 Rf8 h8B Qf3 Bf6 Be1 Bh4 Bg2 Bg3 Bh3 Kb3 c4+ Ka3 c3 Qg2 c2 Nc4+ Ke7 Kb3 c1R Nca3 Rd1 Kc4 Rh8 Kc5 Rd2 d6+ Kf7 Bef4 Ne3 d5 Nd1 Bh6 Qff5 Be3 Qde6 d7 Kf6 Bh4+ Ke5 d6 Bf4 Qg3 Bf1 Qg2 Bc4 Bg3 Bb3 Nc2 Qe7 Nb5 Bbf7 N5a3 Rh6 Rg5 Rhh4 Rh5 Ra8 d8N Qd7 Ne6 Ra4 Nc7 Rh1 Nc3 Rhh4 Rb1 a1R Rc1 Na2 Ncb1 Qe6 d7 Rad4 d8N Rh1 Nd5 Qd7 Nc6+ Ke6 N2b4 Bc7 e5 Bb8 Rc4 Nac3 Nb5 Ra4 Nc2 Na2 Rb4 R4d3 Re4 Rdd4 Nb6 Rdb4 Na8 Rbd4 Kb6 Kd5 Nac7+ Kc4 N5a3+ Kb3 Kc5 Rf4 Bgf2 Rfh4 Qg8 Rg4 Bg3
1nq1Nb1N/1nqq1rQ1/R2P3K/2r1k3/N2nqN2/4B2N/1rq2q2/R1B2N2 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g4 h5 Kf2 f5 Ke1 f3 Bg2 f4 Bh3 Bf5 gxf5 Qd5 Bg4 hxg4 Kf2 Qd6 Ke1 Qd8 Kf2 Kf7 d4 Kf6 e4 g5 b4 c5 h4 a5 d5 c3 h5 c4 b6 g3+ Ke1 g4 b5 a4 d6 c2 Kd2 f2 h6 f1R h7 g2 b7 a3 b6 f3 Ke3 a2 Kf4 g3 Be3 c1Q Rh3 c3 Qc2 f2 Qb2 Ne7 Nd2 Qd7 Rh4 Rg8 h8N Qc2 Nh3 g1N Rg4 Rc1 Nf1 g2 Bd2 Rb1 Bc1 Nf3 Rg3 Rg5 e5+ Kg7 e6 Kf6 Rg4 Nec6 e7 g1Q Rg2 Ra7 Rh2 Na6 b8B Nd8 b7 Nd4 Bc7 Qh1 b8N Rh5 Bb6 Nb7 Kg4 Ke5 e8N Qc7 f6 Qhc6 f7 Q6d7+ Kg3 Rf5 Kh4 Qcc8 Rg2 Qe4+ Rg4 c2 Qc3 Qdc7 Rf4 Rb2 Nd7+ Ke6 Kg4 Nb8 Nc5+ Ke5 Na4 Ra5 Qg3 Rc5 Qg1 Rf6+ Kh5 Q7d7 Qg7 Qcc7 Be3 c1Q Kg5 Qc3 Bc1 Qcc2 Rf3 Qdc8 Ra3 Q8d7 Ba5 Qcc8 Bad2 Qdc7 Be3 Q7d7 Ng3 f1Q Kh5 Qff2 Nf1 Be7 f8N Qcc7 Qg6 Rf7 Ne6 Bf8 Nef4 Qcc8 Nb6 Qcc7 Ra6 Qdc8 Na4 Q8d7 Rb1 a1Q Qg3 Qa2 Ra1 Qae6 Qg2 Qdc8 Qg1 Qed7 Kg5 Be7+ Kh6 Bf8+ Qg7+
4B3/1q1Rr1kr/3RbN1b/1B3Rb1/3p2N1/nR1b1P2/2q1RbKR/n1n3Q1 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 Kd2 f4 Ke1 f3 exf3 cxd4 Bf4 g5 Kd2 g4 Be3 g3 Bg5 gxf2 g4 h6 Bf4 Na6 g5 Nb8 g6 Na6 Be3 Nb8 Bg5 hxg5 Ke2 e5 h4 a5 c4 d5 b4 a4 g7 Kf7 b6 d3+ Ke3 g4 c5 a3 c6 a2 h5 e4 h6 g3 h7 d2 b7 g2 c7 Nc6 b8R Qd7 b5 Na5 b6 Nh6 g8R Ra7 b7 Nb3 Rg6 Nc1 Rd6 Kg7 Bb5 f1B Kf2 d4 Rh5 Nf5 Nc3 Ne3 Nh3 Bd3 Nd5 Nc4 Rf5 g1B+ Kg2 e3 Nf2 e2 Nf6 e1B N2g4 Bh4 Qe1 Bgf2 Qg1 d1Q Rb1 a1N Rb3 Rg8 h8R Bg5 Rh2 Na3 Rb2 Qc6 Re2 Be6 c8B Rh8 Bd7 Rh7 Rd8 Qdc2 b8R Rc7 Rb6 Qb7 Be8 Re7 R8d7 Kh8 Rbc6 Bfh6 Rc3 Kg7 Rb3
1R2QR2/3Bb3/2r3Nn/R1Rq1Rk1/1N4pr/BnnPqrnR/7K/nn6 b - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 g5 f4 Bf5 h4 Bg6 f5 e6 h5 exf5 hxg6 fxg4 Ra3 g3 Ra4 Qc8 Ra1 Qd8 e4 Ke7 b4 Kf6 g7 c5 b6 h5 b7 a5 b5 c3 b6 c2 d3 a4 Ne2 h4 Nbc3 g4 Nb1 h3 Nf4 h2 e5+ Kg5 e6 f5 e7 g2 Kf2 g1Q+ Ke2 a3 e8R c4 Qe1 a2 Re6 c3 Bg2 Nh6 Rf6 Be7 Qf1 Qd5 Ng6+ f4 g8R Nc6 b8R Nb4 Bb2 c1R b7 c2 Qe1 Qe3+ Kf1 f3 Rgf8 f2 Nc3 Ra6 Bf3 Rc6 Kg2 f1N Rbc8 Nd2 b8R Nb1 Ba3 Rh7 Qe2 Rf1 Be4 Rf3 Bf5 c1N Bd7 Nb3 Qe1 Rd6 Rc5 Rc6 R6f7 Na6 Rf6 Nc7 Rf4 Nb5 R4f6 Qf5 Nd5 N5c3 Nb4 Qd5 Qe2 Qc1 Qe6 Qe3 Qf7 Rh8 Qe8 Rh7 Re1 h1N Kh2 Rh8 Rg1 Rh7 Rg3 Rh8 Rh3 Ng3 Ra5 Ng8 Rf4 Rh4 Rc4 Nh6 Rcc5 N1d2 Rb1 a1N Rf1 Ndb1 Re1 Qd4 Re4 Q4e5 Ref4 Qe3 R4f5+
3r4/N1NNNqNp/bbB1rr1k/N2K4/p1R1BQ2/6nb/4P1q1/nR4n1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 cxd5 e5 h4 gxh4 Ba3 exf4 axb5 Bd6 b6 Be7 b5 Bf8 Bb4 cxb4 Kf2 f5 Kf3 Kf7 g4 Kg6 d4 a5 g5 h3 b7 h2 d6 b3 b6 b2 d5 a4 d7 Bb4 d6 Qf6 d8N Bd2 d7 Qg7 Nc6 Qf7 d8N Ra6 Bg2 Kg7 g6 Be3 Na5 Nc6 b8N Kh6 g7 Nge7 g8B Nb4 b7 Re6 Nc3 b1N Nb5 Nc2 Nd7 Bb6 b8N Ba6 Ra3 Na1 Na7 Bc7 Rc3 Bb6 Qd4 Nd2+ Kf2 f3 Nh3 f4 Rc4 Nf5 Nbc6 Ng3 Rb1 h1Q Ne7 Qh2 Ng5 Qh3 Nb5 Qh2 Ndc6 Qh3 Nc7 Qh2 Ke1 f2+ Kd1 f1B Na7 f3 Qf4 f2 Bc6 Bh3 Kc1 f1R+ Kb2 Qg6 Kc3 Nf3 Bf7 Qg8 Bg6 Qg2 Bge4 Qf7 Kd3 Rd8 Kc3 Bg1 Kb4 Rf2 Kc5 Rf1+ Kd5 Bb6 Qe3 Ng1 Qd4 Rg6+ Nge6 Rff6 Qf2 Qe8 Ng7 Qf7+ Ke5 Re6+ Kd5 Rgf6 Qf4+
q1R3bB/r4p2/2RKP3/q4Rrq/3b1pRN/3QB1n1/Rk1Nnq1q/4R3 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 c5 d4 h5 d6 h3 d5 b4 d7 h2 g5 h4 g6 b3 e4 b2 g7 h3 d6 Ne7 g8R Nf5 Be3 Ra7 Qc1+ Kb3 Qf1 c4 Ra6 c3 Rg5 c2 Ra4 c1Q Kd5 Qc3 e5 Bg7 Nf3 Nc6 b8B Rh5 b7 Ncd4 Ra2 Ng3 Rg4 Nde2 Nh4 Rg5 Nd2+ Kc2 Rg1 h1Q+ Qf3 h2 Re1 Qf8 d8R Bf5 d7 Bh7 Rc8 Bg8 d8R Bf6 Bc7 Qa5+ Kc6 Qh6 b8R Qh5 e6 Bd4 Rd5 Kc3 Rf5 b1Q Rbb2 Qc2 Kd6 Qg2 Qd5 h1Q Rb6 Qf2 Qf3 Qe4 Ra6 Qa8 Rc6+ Kb4 Bd8 Qhg1 Bf6 Qgh2 Nb1 Kb3 Bh8 Qg6 Qe4 Qh5 Qd3+ Qc3 Ra3+ Kb2 Nd2 Qa5 Ra2+
k1B4n/q2q1r1n/N2R1r2/r2p2P1/4n3/3N1N2/QrqN2pN/rN2K1BR b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 g3 exf4 b6 f3 Be3 f4 Bc1 f2+ Kd2 axb6 Nh3 b5 Ng1 b4 Ba3 g5 Kc1 b6 Kd2 Bd6 Bc1 Bb7 Kd3 Bf3 Kd2 Bg4 h3 f3 Bg2 Bf4+ gxf4 Bh5 Bf1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qg5 Rh4 Qe7 Rh1 Qd8 e4 h5 a4 d5 c4 Kd7 f5 Kc7 f6 Kb7 c5 h4 g5 b5 e5 g2 a5 b3 e6 d3 f7 b2 f8N h3 e7 h2 e8N b4 Qc2 b3 Ra2 Nd7 Nh3 Ne7 Nf4 Rh6 N8g6 Nf8 Nf6 Nh7 Nh4 Ng6 Ng4 Nh8 c6+ Kb8 a6 Rf6 Kd1 d2 Nd3 Qd7 c7+ Ka7 Be2 f1N c8N+ Kb8 Nb6 f2 Ra5 Ng3 Nf3 Ne4 a7+ Kb7 Nc4 f1R+ Nfe1 R1f4 Ra6 Rf7 Bf3 R4f6 Ke2 d1R Be3 Rc1 Bg1 Rd1 Ncd2 Rc1 Na3 b1Q Qa2 b2 Rd6 Qc2 Nb1 Rd1 Nge5 Rc1 Bg4 Rd1 N5f3 Rc1 Nc3 b1R Bh3 Rb2 Nb1 Rc8 a8N Rc5 Nc7 Ra5 Na6 Ka8 Nfe5 Qa7 Bc8 Rd1 Ng4 Rc1 Nc3 Ra1 Nb1 Qd7 Nf3 Qa7 Bc5 Qd7 Ke1 Qa7 Rf1 h1Q Bg1 Qh3 Ngh2 Qg4 Bd4 Qf5 Rh1 Qfd7 Bg1
KBB2Rn1/p1B3B1/2N3b1/5b2/n1bn1b1Q/BPnk2p1/q3R2q/1b2N2B b - - 0 1 illegal: No proof kernel
3b1b2/1q1N4/n3np2/k1BN1BNn/4nR2/bP3R1p/1p2K3/2NrNQNr b - - 0 1 legal: proof: b4 c5 Nh3 b5 Bb2 a5 Nf4 c4 Nh3 Ba6 Ng5 Ra7 Nh3 Rc7 Ng1 Rc5 bxc5 b4 Ba3 b3 Bc1 b2 c3 d5 Nh3 d4 Ng1 Bb5 Na3 Ba4 Nb1 Bb3 axb3 Qb6 Qc2 Qd6 Qd1 Qd8 f4 dxc3 h4 e5 h5 exf4 h6 gxh6 Ra4 h5 Ra1 h4 d4 Kd7 g4 Kc6 e4 Kb5 d5 h5 c6 h3 c7 h4 c8N c2 e5 f3 d6 h2 d7 h3 g5 a4 g6 f2+ Ke2 a3 g7 a2 e6 c3 e7 Ka5 e8N Qb6 d8N Qc6 Ne7 Nf6 g8N Nh5 Nd2 Na6 Ne6 Qb7 Nf5 Ba3 Nef6 Rh6 Rb1 a1N Nge7 Rg6 Bg2 f1N Ndf3 Nd2 Qf1 Ne4 Be3 c1B Ned5 c2 Bc5 Bg5 Nd7 c1B Ne1 Nc2 Nfd4 Bd8 Ng5 f6 Bf3 Bf4 Bg4 Bd6 Bf5 Bf8 Rd1 Rg7 Rd3 Re7 Rf3 Re6 Kd1 Rd6 Nde2 Nd4 Nc1 Ne6 Ke2 Bg7 Rf4 Bh6 Ng1f3 Bf8 Rg1 h1R Rg3 Nec7 Ng1 Ne6 Ne7 Rd4 Rgf3 Rd1 Nd5
2B2n1K/3B3B/bNbn4/k1b3b1/B1B1b1PR/1B3R1p/2nprp2/1NQ4q b - - 0 1 illegal: No proof kernel
B3k3/1r1Br2P/2p1Rrr1/nN1r1N2/7Q/3pK2N/1p1Nb1Nq/b1Nb1R2 b - - 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 h5 gxh5 dxc4 Nc3 e6 Nb1 e5 e4 Be6 f4 Nd7 f5 Rc8 d5 Nc5 Bb2 Ra8 Bd4 exd4 e5 Bc8 Nd2 Qe7 Nb1 Ne6 fxe6 Qd8 Ke2 b5 a4 f5 h4 g5 e7 c6 h6 f4 h5 b3 a5 b2 d6 g4 a6 g3 h7 b4 a7 b3 h6 g2 Nd2 b1R Qe1 c3 Qh4 c2 Nh3 c1R Rg1 Rb8 a8B f3+ Kd3 f2 d7+ Kf7 e8N Rb7 Ra2 Qc7 Ng7 Re1 Nf5 Bg7 d8N+ Ke8 e6 Rbd1 e7 Nf6 Ne6 Ne4 Nc5 Rf8 h8N Rf6 h7 Nd6 Ng6 Nc4 Ngf4 Na5 Rh1 g1R Ng2 Bd7 Be2 Qd6 Bg4 Qh2 Rb2 Ree6 Rc2 Rge1 Rf1 Rg6 Rc3 Ref6 Rc1 Re5 Re1 Rd5 Re6 f1B+ Ke4 d3 Ke3 Be2 Ra1 Kf7 e8N Re1 Ned6+ Kf8 Nb5 Bc8 Rd6 Ke8 Rd1 Rff7 Rb1 Ba1 Re6+ Rfe7 Rc1 b2 Ncb3 Rg1 Rf1 Rf6 Re5 Be6 Nc1 Bf7 Re6 Bh5 Nf2 Bd1 Bh3 Bhe2 Bg4 Rb8 Nh3 Rb7 Re5 Bf3 Nfd6+ Kd8 Bc8 Rb6 Re6 Rbb7 Ne1 Bfe2 Nf5 Rgg6 Ng2 Ke8 Bd7+
2nr3k/3rNqp1/4B1BB/4pb2/1q4R1/1B1Bq1np/KRB3P1/Q1N1r1q1 b - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 e4 f5 f4 Kf7 h4 Qc7 h5 fxe4 f5 e6 f6 Be7 fxe7 Qh2 Nf3 Qxh5 Ng1 Qh2 Kd2 b5 c4 d5 Kc2 h5 Kb2 h4 a4 e3 a5 h3 a6 e2 a7 e1Q c6 d4 c7 d3 c5 b3 c6 e5 Na3 d2 Rb1 b4 Nb5 Bf5 c8B Na6 c7 Qe3 Bd3 Nc5 Nd4 Ne4 Nge2 Qhf4 Rf1 Ng3 e8B+ Kf8 Re1 Ne7 Be6 Rd8 a8B Nc8 Bg6 Rd7 Bad5 Qf1 Ka1 b2+ Ka2 Qff4 Qa4 d1Q Nc6 Qf1 Ne7 b3+ Ka3 Qff4 Rf1 Qc4 Rf4 Qdg1 Rg4 Qcf4 Bd2 Qff2 Nc1 Qff3 Ra1 b1R Ra2 b2 Bb3 Ra1 Bbc2 b1Q Beb3 Qd5 Qa7 Qf7 Qd4 Qef2 Bh6 Qe3 Ne2 Qbe1 Nc1 Rb1 Rb2 Qb4+ Ka2 Rg8 Ne2 Re1 Nc1 Rh8 Rb1 Rg8 Qa1 Rh8 Nd5 Kg8 Rb2 Rh7 Ne7+ Kh8 Bg5 Rh4 Bh6 Rd8 Rg5 Rhd4 Rg4 Nb6 c8B R4d7 Bca6 Nc8 Bac4 Qd4 Bd5 Qde3 Be6
B2Q2nr/3BNbr1/Rn1nP3/1Rp1nBb1/n1Np2Bk/K3p3/3p4/3BB3 b - - 0 1 illegal: No possible last move
4QNb1/1qb1KBR1/1kNP4/4Rq2/1qp3Np/B1r5/1b1NNpp1/rqN5 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 Bh3 g5 Bg2 f4 Bf1 Nh6 h3 Nf5 gxf5 Nc6 h4 g4 Qc2 Nd4 Qb3 Ne6 Qd1 Ng5 hxg5 Kf7 Qb3 Ke7 Qd1 Ke8 Kf2 Kd7 d4 Kc6 e4 h5 a4 b5 f6 h4 a5 b3 f7 c3 a6 b4 a7 b2 g6 c2 d5+ Kb6 d6 c5 g7 b3 g8N Bf5 e5 Be7 f8N Qd7 e6 Qa4 Qe1 Rb8 a8N+ Kb7 Nb6 Bg6 Nd2 b1Q Nd5 b2 Nc3 Bf7 Bc4 Rc8 Na2 Qb4 Ne2 Kb6 Rg1 Bd8 e7 Bc7 e8N Rh7 Ne7 Bg8 Bf7 g3+ Kf1 f2 Kg2 f3+ Kh3 Rh8 Nf6 f1Q+ Rg2 f2 Ng4 Rh5 Nc6 Qh1+ Nh2 Re5 Rg1 c4 Kg4 Re3 Kf5 Ra8 Kf6 Rc3 Ng4 g2 Ke7 Qh3 Rh1 Qd3 Rh3 Qf5 Re3 Ka6 Re5 Qb7 Nab4+ Kb6 Nd3 Ra6 Raa5 Ra8 Rad5 Ra1 Ra5 Qa2 Ra3 b1Q Ra7 Qab3 Bb2 c1B Ba3 Bb2 Ndc1 Qa6 Qd1 Qb4 Qa4 Bb8 Rd7 Qb7 Qa8 Bc7 Qb8 Qb5 Qe8 Qb4 Be6 Qfe4 Kf6 Qa4 Rg7 Qf5+ Ke7 Qb4 Bf7
BRRn2bB/Q1p5/2pp1b1P/n2B1n2/B2N2pb/1p1q4/k2Bb3/2K2B1N b - - 0 1 illegal: No proof kernel
7B/1BNn2BB/n3RP1r/3n1r2/K1n1BQqq/1n4r1/2bb3N/B1n1kqR1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 a5 Kb3 h5 c5 e5 g3 d5 c6 a4+ Kc2 a3 Kb3 h3 c7 a2 b6 d3 b7 h2 Qd2 Kg4 f5 d4 Qc2 e3 Nh3 Kf3 g4 d2 g5 d1N g6 h4 g7 e4 Rg1 h1R Rg5 d3 Rg4 e2 Qc4 e1Q Bd2 e3 Qc3 e2 Rg1 Rh5 Qc4 Qd7 Qc2 Nc3 Na3 Nd5 Bh6 d2 Qc4 d1N Nb5 N1e3 Nf2 h3 Ng4 Ngf6 g8B h2 Bh7 Qh4 Bg7 e1N Bd3 Na6 b8B Bb4 Ka4 Bd2 b4 Ra7 Qd4 Nc4 Be4+ Ke2 Rc1 Bb7 c8B a1N Be5 Nd3 Rc3 Qe6 Nc7 Nc1 b5 Nab3 b6 Nd7 Rcg3 Ba8 b7 Qg6 b8B Bb7 f6 Rf5 Bh8 Ba8 Bb7 Qg8 Ne3 Qgg4 Nf1 Ke1 Bd6 Nde5 Bf8 Nd7 Bc8 Rb7 Bfg7 Rb5 Ba7 Rb8 Bb7 Rg8 Bh6 Rg6 B6g7 Rh6 Qe5 Rg6 Qf4 Rh6 R1g2 Rg1 Bd4 h1Q Ba1 Q1h3 Rc3 Qd3 Nh2 Qf1 Rf2 Rg3 Rg2 Qhh5 Rd3 Qhh4 Rg1 Qf3 Re3+ Qe2 Bc2 Ne7 Bg2 Be4 Bf3 Bd3 Ba8 Nd5 Re6 Be4 Bd3 Qeh5 Bb7 Q5g4 Be2 Bc2 Bd3+ Re3 Be4 Rf3 Qg5 Rg3 Qf4
1N1N2N1/KR2q2P/brq4N/r1Nn2bq/3b4/b1k5/BrrN1RbB/3nQ3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 h4 d5+ Kb3 a5 Ka4 g5 b4 f5 c4 f3 e4 g3 c5 g4 h5 f2 b6 g2 Kb5 a4 b7 a3 h6 d3 c6 Kd4 h7 a2 e5 d2 e6 g3 c7 f4 Kb6 f3 b5 Nd7+ Kc6 Ne7+ Kd6 Ra5 b8N Nf6+ Nd7 Nf5+ Kc6 Ba6 Kb6 Qe7 c8N Ne3 Bd3 f1B Ne5 f2 Nh3 g1R Ng4 g2 Qe2 d1R Nh6 Rd2 Nf4 Rc2 Rh2 Nd1 Nd2 Kc3 Bc4 d4 Rb1 a1B Nd6 d3 Nb7 Nd5+ Ka7 Bb2 b6 Ba3 Ba2 Rb2 Nf3 d2 Qe1 Bg7 Nd3 Bf6 Nc5 Rc8 Nh4 Rh1 Nf3 g1B Rg2 Bg5 Rh2 Qf8 e7 Bg2 e8N f1Q Nf6 Bd4 Nd8 Qc4 b7 Qe7 Nfg8 Rb6 Rb2 Qa4 Rb4 Qc6 Rb1 Bh3 Rf2 Bg2 Ne5 Rh2 Nc4 Qe2 b8N Qee6 Rf7 Qe4 Rb7 Qe7 Rb2 N1e3 Ndf7 Rf8 Ne6 Rh1 Qe2 d1Q Nfd8 Rf2 Nc5 Re1 Qf1 Qh5 Qg1 Ree2 Qh1 Nd1 Bf4 Rd2 Bh2 Rd3 Re2 Rd2 Qg1 Rdb2 Rd2 Rf3 Qe1 Rd3 Rf2+ Rdd2 Qg1 Rdc2 Nd2 Qe1 Qf1 Qe7 Qe1
1n2N1rB/K3b1Nn/3RR2r/2Qn3n/1Nr5/4q1rP/NNN1b1k1/b1r2Bb1 b - - 0 1 illegal: No possible last move
3q1rr1/q2B1bNR/Nk1nn1nq/1B2Rp2/BKB2P2/2nQ3B/1B4r1/n2b4 b - - 0 1 illegal: No proof kernel
2KQ4/3r4/n1BqNN2/Br1Pb2N/bk2rqRq/8/p2N2qN/RqnN1b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 a5 d4+ Kb4 g4 c5 d5 f5 g5 h3 b3 h4 b6 h2 g6 a4 b7 c3 g7 c4 Bb2 h3 Qf3 a3 Qg2 f3 Be2 a2 Nd2 c2 Qg5 f2 Ngf3 f1B Rg1 c1Q Rg4 h1R Nh2 c3 Bb5 c2 Bc6 Nh6 g8N f4 Ne7 f3 Nf5 f2 Ne3 Rh7 Nd1 Na6 b8N Qb1 Nd7 c1Q Ke6 Nf7 e5+ Qc4 Bd4 Bd6 Bb6 Rb8 Qh4 Qf8 Qd8 Qf4 Bc7 Bb7 Nf6 Ba8 Kd7 Rb5 e6 Ne5+ Kc8 Rd7 e7 Nd3 e8N Be5 Ng7 Qd6 Bb6 Nc1 Ne6 Rg1 Nh5 Rg3 Qe7 Re3 Qd8 Re4 Ba5+ Ka3 Nhf3 h2 b4 h1Q Nh2 Qg2 Rg6 Qh4 Rg4 Rc5 b5 Ka4 Bc7 Kb4 b6 Rb5 b7 Be2 b8N f1Q Rg7 Qff4 Rg8 Bf1 Rg4 Rg7 Nd7 Rh7 Ndf6 Rf7 Be8 Rd7 Bb6 Bc6 Bc7 Rb7 Bb6 Ba4 Bc7 Rb5 Bb6 Rg7 Bc6 Rd7 Ba5+
KN1b3n/P7/r2qk1p1/3QBqr1/2nBBrR1/n1qbB2B/1Rr4N/1B4r1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 b5 Ke4 d5+ Ke5 f5 c4 g6 h4 d3 a4 b3 e4 d2 c5 f3 c6 f2 h6 b2 a5 d4 h7 f4 c7 d3 a6 b4 h5 b3 h6 f3 Ne2 Bf5 c8B Nd7+ Kd5 Nb6+ Kc6 Qd6+ Kb7 Nc4 Bh3 f1R e5 f2 e6 Rg1 Ra4 f1R Nd4 Rg5 Rh2 Rf4 Nc6+ Kf6 Qh5 d1Q e7 d2 e8B Be7 Nb8 Qf3+ Bc6 d1R Be3 Bd8 Nd2 b1N Nf1 b2 Be4 Nba3 Be6 b1Q+ Rb2 Qg3 Nh2 Rg1 B6d5 Qf1 Bb1 Bd3 Be4 Qge1 Qd1 Qc3 Qb3 Qf3 Qb5 Qg4 Qd5 Qf5 Rab4 Ne7 Ra4 Nc6 Rab4 Rg8 h8B+ Ke7 h7 N6e5 Ra4 Nf7 Be5 Nh8 Rab4 Rf8 a7 Rf6 Nd7 Rc8 Nb8 Rc6 Ka8 Ra6 Rg2 Rf2 Rg4 Rc2 Rb2 Qf2 Qb5 Rf4 Qa5 Ke6 B5d4 Nf7 h8B Qf3 Bhe5 Nh8 Rh4+ Qg4 Qb5 Qf5 Rg4 Qdb4 Qa5 Qd6 Qd5+
1Nb5/2r3Br/2QKR1rr/b1RB1BN1/7b/1p1Br1P1/nr2B2B/qr1n2k1 b - - 0 1 illegal: No possible last move
2B5/kRKn2b1/1r1B1pb1/N1n3P1/4BB1q/BbrQB3/q3Nq2/rr1R1n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 h5 Ke4 a5 Ke5 c5 b4 Kc7 g4 Kb7 d4 a4 e4 f3 d5 f2 d6 c3 g5 h3 b6 h4 d7 c2 b5 c4 Qd6 a3 Qe6 c3 Qg6 h2 Ra2 h3 Be3 c1R Bd3 f1N Ne2 c2 Rb2 a2 Nd2 a1Q Nb3 Bg7+ Kd6 Na6 e5 Rh6 e6 Qa2 e7 Qf8 d8B Rb1 Na5+ Kb8 b7 c1R Bc2 Nf6 Qd3 Bf5 Kc6 Ra7 e8B Nc5 Be7 Bg6 Bd7 Ra8 Rb3 Ka7 Bc8 Nd7 Rg1 h1B+ Kc7 h2 Rb2 Ng3 Rd1 Bd5 Rb3 h1Q Rb4 Bc4 b6+ Ka6 Rb5 Qh4 Bd6 Nf1 b8B+ Nb7 Ba3 Bb3 Qc4 Ra7 Be4 Qc5+ Nc6 Qf5 Na5 Qff2 Qc2 Ra1 Qc4 Rcb1 Qd3 f6 Kc6 Ra8 Bbf4 Rb8 Kc7 Nf8 Be6 Nc5 b7 Ka7 Bc8 Nd7 Bd6 Rh8 Bdf4 Re8 Rb6 Re6 Rb5 Ra8 Rb4 Rb6 Rb5 Ka6 b8B+ Rb7+ Kd8 Na4 Bbd6 Ra7 Rc5+ Kb6 Qc3 Ra6 Qc4 Rc7 Qd3 Ka7 Rb5+ Rc5 Rb6 Rc3 Rb8+ Nac5 Kc7 Rb6 Rb7+
Qn3Nn1/r1N1PR2/N1BBbr2/2p1qq2/2N1b3/bbb2r2/8/k1bRNNK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 e4 Kd4 g5 h5 e5 f5 g6 a5 b6 h3 e6 h4 g7 f3 b5 c3 b7 c2 b6 f4 Na3 h2 Bg2 a4 Nc4 h3 Ba3 c1B Bd6 a3 Qa4 a2 d3 Kc3 d4 c6 d5 Qf6 Kf1 f2 Nf3 Ra6 Ne1 Rh6 Rb1 a1B e7 c5 Be4 Ba3 Rd1 Be6 Rg1 h1B Bg2 Nd7 b8N h2 b7 Ra7 Na6 Qe5 b8N Rf6 Nc7 B1b2 Nba6 Bc1 Qc6 Nb8 Qa8 Kb3 Bf3 Ka2 Rg5 Ka1 Rf5 Rg6 Rf7 Rf6 Bg4 Be4 Bf3 h1B Bg2 Nh6 g8N Bg7 Bf3 Bc2 Be4 Bb3 Bg2 Rg6 Nf6 Ng8 Ng4 Rf6 Nge3 Bh8 Bh3 Bf3 Bg2 Be4 Bf3 Bg7 Kg2 f1R Kh2 Rf2+ Kg1 Bh8 Bh1 f3 Nf1 Qh5 Bh2 Qe5 d6 Re2 d7 Re3 d8N Rd3 Bf4 f2+ Kh2 Rf3 Bg2 Bc8 Nde6 Bg7 Nf8 Be6 Nfd2 f1Q Bh1 Qf5 Bd6 Qe2+ Bg2 Qe3 Nf1 Qef4+ Kg1 Q4e5 Nfe3 Bh6 Nf1 Bd2 Bh1 Bc3 Qc6 Bd3 Nd5 Re3 Ndc7 Bdc2 Be4 Rf3 Qa8 Bd3 Bd5 Be4 Bc6
brr4Q/3N1Bq1/1p3qqN/3nB1b1/2P2B2/1K2nRn1/1bB2RB1/2kb1Bn1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 Ke7 h4 Ke6 a4 Kd5 c4+ Ke4 Kc2 g5 e6 d5 e7 f5 e8B g3 e3 g4 a5 b6 a6 b3+ Kb2 f4 a7 f3 h5 g2 h6 f2 h7 g3 Bb5 d3 Na3 d4 Rh3 d2 Ba6 d3 Qe1 d1B Bd2 Bb7 Rh2 Qg5 Nb5 Ne7 Ra5 Qg7+ Nd4 Nbc6 Ra1 Rb8 a8B Nf5 Bb5 Nb4 Ba4 Nd5 Ra3 Be7 Nf3 g1B Ne5 g2 Nd7 Rhc8 h8B Bg5 Qe2 Ng3 Qh5 Bc6 Bc1 d2 Qh3 Qh7 Be5 Qg7 Nf5 Kf3 e4 Bb7 Bd3 f1Q Nh6 Ke3 Qh4 Qff7 Bf1 Qff6 Qh5 Bc6 Qe8 Bf2 Qh8 g1N Rg2 Be1 Rf2 Bb7 Bc3 Bc6 e5 Bb7 e6 Bc6 Ka1 b2+ Ka2 Bb7 Rb3 b1Q+ Ka3 Qbg6 e7 Bc6 e8B Bb7 Bf7 Bc6 Bg2 Kd3 Bf1+ Kc2 Be5 Bb7 Bcb2 Bc6 Bbd4 Kc1 Rbf3 Bb7 Bf4 Bc6 Rg2 Bf2 Ba1 Bd4 Bc2 Bc3 Bb7 Be5 Kb3 Bb2 Ba6 Bb7 Rgf2 Ba8 Bb7 Be2 Re3 d1N Ref3+ N1e3 Bc6 Bd1 Bb7 Ba3 Bae5 Bb2 Bg2 Nb4 Be4 Nd5 Bd3 Qh5 Be2 Qhg6 Bef1
2N2B1k/1QbbBr2/1q2n1B1/1b1Pbpn1/1N1b1B1b/r5R1/2BR1n1K/5Bn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 g4 a5 Kg2 f5 d4 Kf7 b4 Kg7 e4 h5 e5 c3 e6 a4 d5 c4 b6 c2 b5 a3 b7 a2 e7 f3+ Kh3 c3 e8B f2 b6 Nh6 g5 Nc6 b8B Bc5 b7 Ra3 g6 Nf7 Bb5 f1B+ Kh2 h3 Bcf4 c1B Nd2 c2 Bd7 h4 Bfd6 Qb6 Ba4 Bb5 Nc4 Bg5 Qb1 c1B Be7 Ncd8 Bbd6 Ne6 b8B Bd4 Nf3 Rh7 Rg1 Kh8 Bc2 Bcf4+ Rg3 Bde5 Be8 Bcd7 Ne1 Bd4 Bc5 Bc7 Nd3 Bgf6 Nb4 Nfg5 Bf8 Rf7 Nd6 Be7 Nc8 Bed8 Kh1 h2 Bce7 Bde5 Kg2 h1N Kh2 h3 Qb3 Bd4 Rd1 a1B Rd2 Nf2 Qb2 Bde5 Qb3 Bad4 g7+ Kh7 g8B+ Kh8 Bc5 Be7 Bh7 B7f6 Bg6 Be7 Kg1 h2+ Kg2 h1N Kh2 B7f6 Bce7 Nfh3 Qb1 Ng1 Qb3 Bd3 Qb1 Nf2 Qb2 Ba4 Bb5 Bc4 Ba6 Bcb5 Qb3 Bd7 Bf1 Bab5 Qd3 Bbc6 Qa6 Bb5 Qb7 N5h3 Bh6 Bh4 Bf4 Nhg5 Ba7 Qa5 Bac5 Qa6 Bf8 Qb6 Bce7
2Q2Rr1/n1nNB3/1KB3r1/PNp3q1/2pnk1q1/NN1r2b1/2N2b1N/1bR4q b - - 0 1 illegal: No possible last move, all moves rejected
2b1N1R1/1B5n/1B4bP/N2prqr1/1R1bnnR1/3qk2q/prR5/2R1R1KQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 g5 c5 a5 b6 d3 h5 Kd4 b5 f3 e5 a4 h6 d2 c6 a3 c7 f4 b7 a2 b6 Bg7 e6 Ra5 e7 Na6 b8R Nf6 e8R Nh7 b7 Re5 Bg2 g3+ Kf1 g4 Qc2 d1B Rh4 f2 Rf8 Nc5 Bf3 Ne4 Nd2 Ke3 Qc6 Bc2 Rg8 d6 Kg2 f1Q+ Kh1 Qf2 Ne2 g2+ Kh2 Bf6 Nd4 g1N+ Kh1 g3 Nb5 Bb1 Rhg4 g2+ Kh2 Ne2 Nb3+ Kd3 Ba3 Ke3 Na5 g1R+ Bg2 Bc2 Rc1 f3 Ra8 Qd7 b8R Nf4 Rb7 Qd2 Bc5+ Qd4 Raa7 f2 Bb6 f1Q Rb8 Qf5 Bh1 Ba6 c8R Bb7 Rce8 Bc8 Rc7 Bb1 Qb7 Bg7 R7c5 Qdd3 Nc7 Bf6 Re7 Rg3 Ne8 Bg7 Rh4 Rg5 Rg4 Qh3+ Kg1 Bf6 Rgg7 Rf8 Rg8 Rf7 Re6 Rc7 R5c2+ Rcc5 Bd8 Rb5 Qc6 Rb2 Rb4 Rd5 Bf3 Bd4 Bb6 Re5 Qa8 Nf2 Bb7 d5 Qa6 Qd2 Qf1 Qdd3 Rc3 Bc2 Qg2 Ne4 Qh1 Ba4 R3c2 Bb5 Nf6 Be8 Re7 Bf7 Ne8 Bg6 Rf7 Qd7 Ra4 Ng2 Rff1 Nf4 Rb4 Qf5 Rfe1+
4N3/1Rb1N1Qb/5pbr/1B2nP2/p2NBN2/1n4R1/b2rN2N/bk2rqnK b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 Bd2 e3 Bg2 exd2+ Kf1 c6 Bh3 cxd5 Kg2 d4 Kg3 Ba6 Bf1 Bc8 Kg2 Rh5 Na3 Rh6 Nb1 Rh8 h4 Ke7 f4 Kf6 b4 Kf5 c4 Ke4 c5 g5 c6 d5 b6 a5 h5 a4 h6 g3 b5 g4 h7 d3 b7 d4 e3 f6 b6 Bd6 c7 Be6 c8B Nd7 b8N Ne5 b7 Bc7 Rh4 Ne7 Nd7 Nf5 b8N Ba2 Qb3 d1B Qg8 d2 Na3 d3 Qg7 Bc2 Nb5 d1R Rh3 d2 Nd4 Re1 Nbc6 d1B Nge2 Kd3 e4 Ra5 Bb7 Rd5 Rb1 Qc8 Ne6 Nd4 Kh1 Nb3 Ne7 Kd2 Bc6 Qa6 N6d4 Bd3 Rb2+ B1c2 Bb7 Re8 h8N g2+ Kh2 g1B+ Kh1 g3 Nhg6 Rh8 Bc6 Nc5 Rb7 Nb3 Bg2 Rh6 Bb5 Ng4 e5 Bh2+ Ng1 Kc1 e6 Kb1 Nde5 Rd6 Nef3 Ne5 Nd5 Rd8 e7 Be4 e8N Bcd3 Ngh4 Bh7 Ne7 Bdg6 f5 Rd6 Ndc6 Rd2 Ncd4 Re3 Nge2 Bg1 Nf4 Re1 Nde2 Bc5+ Nfg1 Bd4 Nf3 Ba1 Ned4 Ng4 Nh2 Ne5 Bbf1 Qc4 Be4+ Qd3 Nge2 g2+ Kg1 Bd8 Rg3 Bc7 Kf2 g1N Kg2 Nc4 Kh1 Ne5 Bc6 Qf3+ Bg2 Qf2 Bb5 Qf1 Be4+
1KN1b3/1RN2BP1/k1qn2p1/4bb1R/1BN2pN1/5nN1/bN1bQ1r1/n5rr b - - 0 1 illegal: No proof kernel
8/RKNrB1r1/8/RPq1B1B1/8/2nrkpq1/BBqbrpB1/n1Nbr2Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 b4 a5 d5 Ke5 d6 g5 h5 f3 Ke3 c3 d7 c4 h6 g3 b6 c2 b7 f4+ Kd2 Kd4 e5 f2 h7 g2 b5 g4 e6 a4 e7 a3 e8B g3 Qe1 a2 Qd1 Nc6 b8B Qb6 d8B Na5 Rh3 Nf6 Qe1 c3+ Ke2 Ne4 Kf3 Qc5 Rh4 Ra7 Bdc7 Nb3 Bd3 Bh6 Bf7 Rd8 Bd2 c1Q Bd6 c2 Be7 Rad7 Bf1 Nc3 Ne2+ Kd3 h8B g1R Bh3 g2 Bbe5 Q1a3 Rg4 c1Q Rg7 Qc2 Qd1 Re1 Qc1 g1R Bg2 Ne4 Nbc3 Bb7 Nd5 Nc3 Qd1 Bc8 Nc7 Bg5 Rc1 a1R Bg8 Ra2 Ra1 Rb2 Ra2 Na1 Qc1 Qab3 Ra5 Qba3 Ba2 Qab3 Rg6 Qg8 Rga6 Qgb3 Ra7 Bb7+ Kg4 Bf3+ Kf5 Qba3 Ke6 Bh5 Nd4 Bd1 Nb3 f3 Qb1 Qab4 Bg7 Qh4 Nc1+ Ke4 Be3 Qg3 Bgf6 Rd3 B3d4 Bd2 Bg5 Rg8 Kd7 Rg7 Kc8 Re2 Be5f6 Rge1 Bde5 Rb4 Kb7 Rbd4 Qb3 Rd6 Qe6 Rd8 Qh3 R8d7 Qh1 Nd5 Bb2 Nc3 Bh4 Kf4 Be5+ Ke3 Bhg5+
Q2B3b/N4rrq/1qN1b1np/4N2b/Pp2B2R/1NbR3n/kN6/qb3N1K b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 d4 Kd6 a4 f5 g4 b5 Kg2 c5 e4 c4 g5 b3 g6 c3 g7 c2 Ra3 b2 Ne2 f3+ Kg1 h3 Nd2 b1B Re3 h2+ Kf2 f4 Rc3 b4 Rd3 Nh6 g8N Qb6 Ng3 Nf7 Ne7 Ng5 Bg2 Ra7 Ng6 Nc6 Ngf1 Rg8 Nb3 Rgg7 Ne5 Raf7 Bd2 c1B Qe1 Ke7 d6+ Ke6 d7 Bb2 d8N+ Kd6 Be3 Ne7 d5 Be6 Ndc6 Ng6 Na7 Bc3 Qd2 Be7 Qc1 Bf6 Qd1 Qb5 Bb6 h6 Bd8 Qb6+ Nd4 Kc5 d6 Qc7 d7 Qb6 Nc4 Be5 Nb2 Bf6 e5 Kd5 Rg1 h1Q Qc1 Qh3 Rh1 Qf5 Kg1 Nh3+ Kh2 Kc5 Qc2 f2 Be4 f3 Qd1 Bea2 e6 Bb3 e7 Be6 e8N Be5+ Ng3 f1B Nf6 f2 Qf3 Be2 Ng4 f1Q Qg2 Bf6 Ne5 Bh5 Qf3 Qe1 Nf1 Qc1 Nbc4 Qa3 Nb2 Qa1 Kg2 Rg8 Rh2 Bh8 Kh1 Rgg7 Qg2 Ng5 Rh4 Nh3 Nec6 Ngf4 Ne5 Qh7 Bc7 Ng6 d8N Re7 N8c6 Ref7 Nd1 Bba2 Bd8 Bb1 Ng4 Kc4 Nb3 Ng5 Qf3 Nh3 Nc5 Ng1 Nd4 Qc7 Bf5 Re7 Qa8 Qb6 Ndc6 Nh3 Be4 Ref7 Na6 Kb3 Nc5+ Ka2 Nb2 Bd2 Nb3 Bc3 Nge5
3q2bn/1R2p1rr/n1B2kB1/BN3NQb/1p2KB1R/bB2B3/4b2P/2rb2q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 b5 c4 g5 a4 d5 f4 g3 c5 b3 c6 b2 a5 g2 f6 g4 a6 g3 f5 Qb6 c7 Rh7 a7 Qa5 Na3 Nh6 Be3 Be6 c8B Bg7 Qd2 Na6 Nf3 g1R Nh4 g2 Ra2 Rb8 a8B Qd8 Bc6 b1B+ Rc2 Ba2 Rc4 Rb7 Be2 Rc7 Bd1 Bd7 Qc1 Be8 Bb3 Bh8 Bd2 Bg7 Ba5 b4 Qg5 Bh8 Nb5 Bg7 Ke2 d3+ Kf3 d4 Ke4 d2 B8b7 d1B Ba8 Kf8 f7 d3 Rd4 d2 Rd7 Rf1 Rg1 Be2 Bab7 d1B Ba8 Rc8 Rb7 Rf3 Rf1 Rd3 Rf4 Bb2 Rg4 Rd6 Rf4 Rg6 Rg4 Kg7 f8B+ Kh8 f6 g1Q f7 Rgg7 Nf5 Ba3 Rh4 Rc7 Bcd5 Rc5 Bdc4 Rc7 Bd3 Rc1 Bb1 Ng4 B1c2 Ne5 Bb1 Ng6 Bd3 Rg8 Bh6 Rgg7 f8B Bf7 Rc7 Kg8 Bc6 Nh8 Bb1 Qb6 Rb7 Qg1 Ba4 Bac4 Bb3 Bfh5 Bd3 Kf7 Bdc2 Rg8 Bfg7 Ke6 Bd4 Rgg7 Be3 Kf7 Qg4 Be6 Bhf4 Kf6 Qg5+ Kf7 Ke5 Bd3 Ng3 B3e2 Bb1 Bd5 Bf5 Be6 Ke4 B6c4 Bg6+ Ke6 Qg4+ Kf6 Nf5 Bg8 Qg5+
rBB1K1Br/rP2n2k/q4N1B/3RN3/Rq1p4/1bB2p1Q/r2r2n1/bn5B b - - 0 1 illegal: No possible last move
N7/2b3RB/1B1nq1Nb/KRBq2r1/BP2bq1B/1B1p4/3rbQpr/5k1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 Ke4 b6 f5 c5 a5 h5 d5 b7 g5 c6 g3 c7 g4 h6 a4 e3 g2 h7 g3 Rh3 a3 Be2 f3 Kc2 d3+ Kc3 d2 Rh6 f4 Bc4 f2 Ne2 Kf3 e4 g1B e5 Kg2 e6 f1B e7 a2 e8B d4+ Kb3 d3 Rd6 f3 Ba4 f2 Re6 Ne7 Ka3 Qd5 Bb3 Ra5 Re5 Bh2 Qe1 d1R Nd2 Na6 b8B Nf5 Nc4 Bh6 Bg5 Nd6 Ba7 Nc5 Bb6 Rd2 Bh4 Bb7 c8B Nce4 Nf4+ Kg1 Rf5 g2 Ng6 Ng3 Rh5 Bc6 Bf5 Nh1 Bc5 Qe6 Nb6 Be4 Na8 B2f4 Rc1 Bg3 Rc2 a1Q+ Ra2 Qd4 Rg5 Rf8 h8B Qdd5 Bhd4 Rh8 Bb6 Rb5 Bdc5 Be5 Qe3 Be2 Rc2 Kf1 Rc4 B4f3 Rcg4 Be4 Rg3 Ke1 Qd4 f1Q Qe3 Qf4 Qf3 Rd1 Qf2+ Kd2 Ne7 Qc6 Bd4 Nb7 Rg7 Ra5 Bf6 Bc7 R3g5 Nd6 Rh5 Rc5 Bb5 Bg5 Ka4 Qb7 Ka5 Rh7 Qf3 Ke1 Bg1 Rh6 Bh7 Rd2 Ng6 Rf5 Qe3 Kf1 Qc5 Rd5 B5a4 Re5 Rh3 Rh4 Rg3 Bh6 Rg5 Qc6 Rh5 Rh2 Bh4 Rg5 Be3 Rg3 Qd4 Rg4 Rb5 Qcd5 Bef2 Rg5 Qf6 Qg3 Bc5+ Qf2 Qd4 Qf4 Qf2+
1r1R4/5k1B/qNR3rb/1ppn1Pb1/1qnr1RN1/3n1bK1/4RQ2/R3BR1b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 c5 g4 h5 a4 b5 f4 e5 Kf2 h3 f5 h4 a5 h2 g5 b3 g6 h3 d6 b2 a6 e3+ Kg3 e2 g7 e1N d7+ Kf7 d5 e4 d6 e3 a7 e2 Nf3 Nf6 g8R Bb7 Rg6 Qc8 d8R Rh6 d7 Nd5 Rc6 Nd3 Nbd2 b1Q Nc4 Qb4 Qc2 e1B+ Qf2 Bd2 Nb6 Bg5 Re8 Rg6 d8R Bfh6 Bd2 Nd7 Re2 Rb8 a8R N7e5 Be1 Nc4 R8a4 Ba8 Rg1 h1R Nh2 Qa6 Ng4 h2 Bg2 Bb7 Rf1 Rg1 Re4 h1B R4a2 Re6 Rf4 Re5 Re2 Re4 Kh3 Rd4 Be4 Nc1 Bb1 Nd3 Ba2 Rg3+ Kh2 Re3 Bb3 Re6 Kg3 Rg6 Ra5 Nf6 Rdc8 Kg7 Rce6 Na3 Rd8 Bbf3 Bd5 Nc4 Ra1 Nd7 Rc6 Nf6 Bg8 Nd5 Bh7 Kf7 Ree4 Rc8 Re5 Rb8 Re2
3q1N1K/3b1NRB/2q3Qp/R2q1P1n/qB1b1B1b/1rBrrn2/2p5/B5Bk b - - 0 1 illegal: No proof kernel
B4N2/3N1k2/P1b2qq1/1rp1b1Q1/2NB1N1K/2nR2pn/1N3rrq/2N1Rrb1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 a4 c5 e4 b5 d4 g5 h4 b3 d6 b4 d5 f3 Kg3 f2 d7+ Kf7 h5 b2 e5 b3 d6 Na6 h6 Qc7 a5 Nb4 h7 Rb8 a6 Bb7 Bg2 f1R Be3 Bc6 Nd2 b1Q Bd4 b2 Nc4 Bg7 Ne2 Rf8 Qd2 Nd3 Nc1 Ne7 Ra3 Nf2 Rd3 Nh3 Rg1 Rf2 Re1 Nd5 Qe3 Nc3 d8N+ Kg6 d7 Rhg8 Ne6 Kf7 Bd5 Qa1 Bg2 b1Q Nb2 Rb8 Nf4 Rb5 Bh1 Qd6 Bg2 Qf6 Bh1 Qaa2 d8N+ Ke7 Nde6 Kf7 Nf8 Bh8 Ng2 Rg7 Nd7 f4+ Kh2 f3 Kg3 Qc2 Nf4 Qae6 Qd2 Qef5 Qe3 Q5g6 e6+ Ke8 e7 Kf7 e8N Qd2 Bg2 Qc2 Kh2 g3+ Kh1 g4 Qe5 Rd2 Qg5 f2 Be4 g2+ Kh2 g1B+ Kg3 f1R Kh4 Rdf2 Nd6+ Ke7 Ndc4 Kf7 Bf3 Qd2 Nfe2 Qdf4 Bh1 Qh2 Nf4 Rg8 Be4 g3 Bh1 Re8 Bf3 Ree2 Bh1 Qe6 Bg2 Be5 h8N+ Kg8 Bf3 Qf6 Be4 Rg2 Bf3 Ref2 Be4 Qgg7 Nhg6 Kf7 Ngf8 Qgg6 Nb8 Be8 Ba8 Bc6 Nbd7
bQnN1k1b/2q2B1p/1qn1RRq1/n2K1Pp1/r2B1B2/5B1r/7r/4rBBN b - - 0 1 illegal: No proof kernel
1rNrN1K1/5P2/p1qB2p1/1qqBN1bn/r2NRR2/1bQ3b1/3q2kN/6Nn b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 h4 Kg6 f4 Kf5 b4 d5 c4 e5 c5 d3+ Ke3 g6 c6 g3 h5 g2 b6 d2 b5 Nh6 b7 Qg5 b6 Be6 c7 Nd7 b8N Nf6 c8N Be7 Qe1 Kg4 b7 d1R Qc3 Kg3 Bc4 a6 Bd2 Rd8 Nc6 Rb8 Rh4 Bg8 Bc1 Rd4 Ba3 Bf7 Bb3 Ra4 Nd2 Bg8 Re1 d4+ Ke2+ e3 Kd3 e2 f5 Be6 Bd6 Nhg4 h6 Nh5 Ke4+ d3+ Nd4 Bf6 Ba2 Bb3 Ndf3 d2 h7 d1Q h8N Qdd2 Nf7 Be7 Rf1 e1B f6 Bf2 Re1 Qc1 Re3 Be1 Nh2+ Kf2 Ne2 g1Q Rf3+ Kg2 Rf4 Qh1 Ng1 Bg3 Nhf3 Rc4 Kd5 e4+ Ke6 e3 Nh2 e2 Ne5 e1Q Kf7 Qed2 Re4 Nf2 Rhf4 Bf8 Kg8 Ra4+ f7 Qf1 Nf5 Qb5 Ng7 Be7+ Ne8 Qf5 Qc4 Bg5 Qc3 Bc2 Bd5 Bb3 Nh3 Qhc1 Ng1 Qc6 Bb4 Nh1 Bd6 Ra8 b8N Qcc2 Nbd7 Rb8 Nc5 Qcd3 Ne6 Qdb5 Nd4 Qbc5 Rh4 Qf1 Rhg4 Qfb5 Rgf4
bBn1r1rR/4R2n/BR2rR2/pR2N2r/5Q1q/KR1n4/2Npkb1P/n6r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Ke6 c4 Ke5 Kc2 Ke4 Kb2 a5 e3 d5 c5 g5 c6 f5 c7 f3 b6 d3 b7 f2 b5 d2 b6 f4 Qb3 d1N+ Ka2 g3 Qc4+ d4 Kb3 f3 Ra2 g2 Ba3 g4 Rd2 g3 Ka2 Nd7 b8R Ne7 b7 Rh5 Bc5 Nb2 Qe2 d3 Ba3 Nf6 Rc2 d2 Rc5 Nh7 Rb5 Nd3 Bd6 Bh3 Ka3 Nc8 Qe1 Qh4 Qc1 Bg7 Qc4+ Bd4 Be2 f1N Qa4 f2 Nf3 g1R Ne5 Nb6 c8R g2 Rh8 Nc8 Qb4 Bg4 Qc4 Bf3 Bc7 Kf5 e4+ Kf4 Qb4 Ke3 Qf8 Ba7 Qf4+ Kd4 Bd6 Ne3 Rb6 Rc1 Rf1 g1R Rb5 Rg8 Rb3 Nb2 Ba6 Rc6 Qg4 Rc7 Ng6 Qe7 Ka2 Nd3 Na3 Nc2 e5+ Ke3 e6 Nb6 Ne5 Qh4 e7 Rc6 e8R Na1 Re7 Ke2 Qb4 Bg2 Nc2 Bd5 Bc7 Re6 Ka3 Bc6 Rd8 Rc8 b8R Ba8 Rd5 Rce8 Rb5 Nc8 Bd6 Bd4 R8b6 Be3 Bb8 Bc5 Rg1 f1R Rg6 Rh1 Rf6 Bf2 Qf4
1n1nk3/1Bp1RR2/1bRR1R1b/2r1BnR1/1Q1bpK2/2Pb1n2/3r1q2/3NN1b1 b - - 0 1 legal: proof: f4 b5 e4 h5 g4 hxg4 a4 d6 e5 dxe5 axb5 exf4 Ke2 f3+ Kf2 Qd4+ Ke1 Qd8 d4 f5 Kd2 g5 Ke3 a5 b4 e5 h4 g3 h5 a4 b6 g2 h6 a3 d5 e4 b7 a2 h7 g4 b5 g3 b6 f2 d6 Nh6 d7+ Kf7 Bb2 Qh4 d8R Bd7 Qe1 Bb5 Nc3 Bd3 Nf3 g1B Rd7+ Ke8 Nd1 g2 Rc1 a1B Qb4 Nf7 Ne1 Ra5 Be5 Nd8 Rh2 Qf6 Rh6 Rc5 Kf4 Bd4 c3 Rg8 h8R Rg7 Rd6 Rd7 R8h7 Bg7 Rg6 Bh6+ Rg5 Qf7 Be2 f1N Ra1 Qa2 Rf7 Nh2 Bf1 Qe2 Ra6 Nf3 Rc6 Qf2 Rcf6 Nbc6 b8R Rd6 Rba8 Nb8 b7 Bc4 Qb6 Qc2 R8a7 Bde3+ Kg3 f4+ Kg4 Rb5 Rh5 Nbc6 Be2 Ng5 Bf1 f3 Nb2 f2 Kf5 Bc5 Kf4 Nf3+ Rg5 Ra5 Be2 f1N Qb5 Ng3 b8R Nf5 Bf1 Qf2 Nd1 Rd7 Qb4 Rd2 Rbb6 Qe2 Rb5 Bcf2 Rd5 Nb8 Rdd7 Bc5 Rb7 Bgd4 Rbb6 g1B Rbd6 Qf2 Rac6 Bb6 Bd3 Rc5 Be2 Be6 Ba6 Bc4 Bb7 Bd3 Rde7+
1r6/1N3K1p/bB2nNrN/4N1N1/2n5/pP1Qb3/kR1RBr2/r1nbbNq1 b - - 0 1 illegal: No possible last move, all moves rejected
1r1Rnq1q/q1B1b3/r1b1Q2k/1R1q2p1/r1R4p/1n2NPRR/1N2r1BK/2R5 b - - 0 1 illegal: No proof kernel
bR6/nn2Bk1N/1pb5/2NB1Rn1/1K1B1bnp/3q1q1P/1Q1r3b/B1r3BB b - - 0 1 illegal: No possible last move
4b1qb/Nq2p1bq/2N3p1/B1N1NnpN/Qn6/R1P4k/B4N1n/KR1r1r2 b - - 0 1 legal: proof: e4 b5 g4 c5 a4 f5 axb5 fxe4 d4 cxd4 g5 h6 Bg2 hxg5 Bh3 Qb6 Bf1 Qd8 Kd2 Kf7 h4 Ke6 b4 Kf5 f4 a5 h5 d5 h6 g6 b6 d3 Kc3 a4 Kb2 d2 b5 e3 b7 d4 b6 d3 h7 e2 Nh3 Kg4 f5 Ra7 f6 Na6 b8N Nb4 f7 Bd7 b7 Bg7+ Nc3 Be8 f8N Nh6 Nfd7 Rf8 h8N Nf5 Nf7 a3+ Kb1 Ra6 Nc5 Rd6 Nbd7 a2+ Kb2 Kh4 b8N e1N Nf6 Nf3 Nb5 Nh2 Na7 Qd7 Bg2 Qb7 Nbc6 Kg3 Nfe5 Rd5 Qg1 d1Q Qd4 d2 Nf2 Qh5 Re1 d1Q Bd2 Rd7 Bd5 Qh7 Bc4 Qdh5 Reb1 Qg8 Bc3 Qhh7 Nh5+ Kg2 Qf4 Rd1 Bb3 Na6 Ba5 Bh8 Qa4 Nb4 Rc1 Bg7 Rab1 Rf7 Ka1 Rf6 Be6 Rf8 Rb3 Rf6 Ra3 Rf7 Kb2 a1B+ Kb1 Bd4 c3 Rf8 Ka1 Rf6 Nfg4 Kh3 Rb1 Bh8 Ba2 Rf7 Ned3 Bdg7 Nge5 Nh6 Ned7 Rff1 N7e5 Nf5 Nf2+
Q1R1rrnq/3Kp2P/2B5/BbN3qq/6pR/r1n1pnB1/4kB2/BBN1b3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 h4 Kg6 f4 Kf5 b4 a5 c4 g5 h5 d5 c5 e3 Kd3 g3 c6 a4 b6 g4 c7 g2 h6 a3 h7 a2 b5 Ra7 b7 Ra6 b6 Nh6 Nc3 Bd7 c8B Ra5 Ne4 Bg7 Bd2 Qg8 Qf3 Nc6 Ne2 g1R Bg2 Rf1 Rc1 a1Q b8B Ra3+ Rc3 Qe8 b7 Ng8 Nc5 Qh5 Nc1 Bf6 Bc7 Bh4 b8B Be1 Rh4 Qg5 Ba5 Ne5+ Ke2 Qb2 Bb7 Ba4 Bc6 Bb5+ Rc4 Qc3 Bh1 Qh5 Qg2 Nf3 Bbc7 Kf6 f5 Kg5 f6 Qb2 f7 d3+ Kd1 d4 f8B Rf2 Bg7 Kf5 Bdb4 d2 Bg3 Qa1 Kc2 d1N+ Bd2 Nc3 Kd3 Rf1 Bf2 Kf4 Be4 Nf6 Bf5 Re8 Bg6 Ng8 Bh8 Nh2 Qa8 Qb2 Bc6 Nf3 Bg1 Kg3 Bf2+ Kg2 Bg3 Rf2 Bf5 Kf1 Bg7 Nd1+ Ke4 d3 Kd5 Nc3+ Ke6 Qa1 N1b3 Ke2 Kd7 Rf1 Bf2 Qb2 Be5 Qg5 Bc1 d2 Bb1 d1Q+ Bd2 Qdc2 Beg3 Qcg6 Bc1 Q6h6 Bd2 Qhh5 Bc1 Qc2 Bb2 Qe4 Ba1 Qee5 Rf4 Qh8 Rb4 Ba6 Rb8 Bb5 Rc8 Nh2 Bg1 Rff8 B1f2 Nf3 Nc1+
R1K3N1/1QPnr3/4Rrp1/R3q1nn/4Bp2/1kpqB1r1/1NbR1bR1/R3q3 b - - 0 1 illegal: No proof kernel
bN1KQ3/2r5/Rr3N2/rp1BB1R1/qB6/P1Bpnb2/3bkpB1/n2Br1r1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 c4 g4 h4 g3 c5 g2 a3 b3 c6 b2 c7 d3 h6 d2 h5 f3 h7 f2 h6 Ne7 Nc3 b1R Qa4 d1B Nf3 g1R Bg2 f1R Nd5 Nbc6 Ne5 Na5 Nf6 Nf5 Bd2 Ne3 Nc6 Bb4 Nb8 d5+ Kd4 Kf5 Qe8 Rg8 h8B Kf4 h7 Re1 Rh6 Rg7 Rg6 Bh3 c8B Qd7 Rg5 b6 Bb7 Qa4 Ra2 Bf5 Rc2 Be4 Rc6 Bf3 Bc3 Bc2 Re6 Bce4 Bd2 Ra7 Ba8 Rc7 Bb7 Rg6 Bg7 Rh6 h8B Rh5 Bf8 Rb2 Bc3 Rbb1 Rge5 Kg3 Rg5+ Kf2 Ke5 d4 Bd5 d3 Bc5 Nb3 Kd6 Ba5 B5b4 Na1 Be5 Rc4 Ke7 Rc7+ Kd8 Rb2 Ng8 f5 Nf6 f4 Bg7 Bf5 Rd6 Bc8 Bec3 Bb7 Re6 Ba8 Bh8 Nd1 e4 Ne3 e5 Ke2 Rd6 Rb3 e6 Rbb1 e7 Rb2 Bc5 Rb3 Be5 Bd2 Re6 Rb5 Bb4 Ra5 Bec3 b5 Ra6 Rh7 Qf7 Rc6 e8B Rb6 Bec6 Rg7 Qe8 Rc7 Bb7 Bh5 Bb3 f3 B7d5 f2 Nfd7 Bg4 Bhe5 Bh5 Nf6 Bf3 Bd1+
3Nr1N1/3p2Bn/1nr2R1r/bb3R2/1q1p4/p1bP3R/RrkRrQ1B/3R2K1 b - - 0 1 illegal: No possible last move
n1n1r1b1/1p1rP1q1/kn1NB1b1/2B1Rn1R/n1Npp3/2N4N/N2bK3/2Q1N3 b - - 0 1 illegal: No proof kernel
4r3/2nr3B/3Bnp2/1N2NBB1/r1p2RBP/p1k5/3nqn1Q/KbbB1bR1 b - - 0 1 illegal: No proof kernel
NbB1B3/1pq1B2Q/1n2R3/1b2knbr/pB1N2rr/3RP3/nB2r2p/1B5K b - - 0 1 illegal: No proof kernel
q3n1Bb/kP2N3/pqrBr1b1/3B2n1/2RNp3/3rQ3/4r1pK/BBnB2R1 b - - 0 1 illegal: No proof kernel
1bqQ1b1N/1p3P2/1N1Bq1Rp/R1R1R1p1/bb1K1R1R/2n3r1/3nq1Bk/7r b - - 0 1 illegal: No proof kernel
1R1q2n1/ppN1N1BK/rq1p4/N1Rn4/Pqnb3N/6n1/bN1N4/3rBQ1k b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 g6 f3 Bg2 fxg2 Bd2 hxg6 Be3 g5 Bc1 g4 Kd2 Ke7 Kd3 Kf6 Ke4 g5 h4 d3 c4 g3 f4 d2 a4 g4 c6 d6 c7 Qd7 c5 Nc6 h5 Bh6 f5 Kg5 f6 Rb8 f7 Nb4 f8N Nd3 c6 Ra8 Nc3 Ne5 Ng6 Nc4 Qf1 Qg7 Nd1 Bd7 c8N Qc3 c7 Bg7 h6 Bd4 h7 Be6 Nb2 Qb4 Nce7 Rc8 Nh4 Kh5 e3 d1N Ngf3 g1Q Bd2 g2 Be1 g3 Nc6 Kg4 Na5 Qf2 Rh3 g1Q Nd2 g2 Rc1 Qf6 Rf3 Qg5 Rf8 Kh3 Rc3 Kh2 Rd8 Na3 Rc5 Ba2 Re8 Qd8 Kf5 Kh1 Kg6 Nc4 e4 Nde3 e5 Nd5 e6 Nh6 e7 Ng8 Qf3 Qe3 Qf1+ g1N Rf8 Qeb3 e8N Qb6 Rf7 Q3b4 Rf8 Ra8 c8N Rb8 Qf5 Ne2 Ne7 Rc8 Nc7 Ng3 Re8 Ngf6 Qb1 Rf8 h8B Ng8 Qd3 Rf1 Bg7 Rg1 Kh7 Rf1 Na6 Rc6 Nc7 Rg1 Bf2 Rd1 Be1 Q6b5 Qb1 Ra6 Qc1 Qb6 Qa1 Qd7 Rb8 Qd8 Qb1 Nde3 Qd3 Nd5 Qf1+
2b2Knr/bp3BnP/1Qk1b2R/1N2pNBN/3qn1N1/1N1n2p1/2N5/3R2rb b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 d5 h4 Kd7 c4 g5 f4 b3 a4 g3 h5 b2 h6 g2 h7 g4 c5 g3 f6 Ra5 c6+ Kd6 f7 Bg4 f5 Bg7 f8N Ne7 c7 Ra8 c8N+ Kc7 f6 Qd6 f7 Bh3 a5 Na6 Ne2 g1N Qb3 Nf3 Bg5 Ng8 Nd7 Bf8 Nf6 Kc6 Nc1 Nh4 Na3 b1N Nc2 Nd2 Nh5 Ne4 Qb4 Be6 Nb3 Qd8 Nd6 Nf5 Rd1 Ng7 Nf5 Bc5 f8N Ba7 Nd7 Rc8 Ndf6 Nac5+ Ke2 d3+ Ke3 d2 a6 Rc7 Ng4 d4+ Kf3 Qd5 Bc4 d3 Rh3 Qd4 Rh4 Bb6 a7 Bc8 a8N Ba7 Bf7 Be6 Rdh1 Rd7 Nc7 d1B+ Kg2 d2 Kh3 Bf3 Rd1 Rd8 Nb5 Bh1 Qa5 Nd3 Qb6+ Kd7 Nf4 Rc8 Rh6 Rc7 Kh4 Rc8 Rc1 d1B Nh5 Be2 Rd1 Bf1 Nca1 Rc1 Nc2 Bh3 Bd2 Nef6 Kg5 Ne4+ Kg6 Rb1 Bg5 Rc1 Rd2 Re1 Rd1 Rg1 Qd8+ Kc6 Qb6+ Kd5 Be8 Bc8 Kf7 Be6+ Kf8 Bc8 Bf7+ Be6 Qa5 Kc6 Qb6+ Kd7 Nge3 Bc4 Nfd6 Bf5 Qd8+ Kc6 Ng4 Bc8 Nf5+ B4e6 Qb6+
b1Nq2kb/1Q4p1/1p4q1/RRp1qNB1/5bbn/3R1rR1/RPB1nn1R/5K2 b - - 0 1 illegal: Other
NN2N2q/b4Rb1/N3rr2/ppPn1N2/rB2k1K1/Qb3n1p/1pBN2R1/3r4 b - - 0 1 illegal: No possible last move
3r1k2/3BN1P1/nK3Br1/RpR1N3/1Nr2N2/p1Nr1b1b/pQp1n2q/2N3b1 b - - 0 1 illegal: No possible last move, all moves rejected
3BBR2/n1pPB3/B2kb3/r3RBKN/1Np3pr/qpb2B2/2bn1Q1b/3q4 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Kd7 Ke3 f5 Kf4 b5 d4 g6 h4 g3 a4 g2 e4 b3 d5 b4 e6+ Kd6 e5+ Kc5 h5 b2 a5 b3 d6 Nc6 e7 Nh6 e8B Nd4 a6 Be6 a7 Nb5 Na3 b1B Qe1 Rc8 a8B Be7 Qf2+ Nd4 Bf3 Ng4 h6 Ne3 h7 Nc6 Bd3 Bf6 Nc2 Bg7 Ra8 Na7 Rh5 Qe7 Ne2 g1B Ng3 Bh2 Nb4 Bc2 Bb5 Rb8 Ba6 Rb5 d7 Ra5 Rc8 Qd6 Kg5 f4 Bf5 Bf6+ Kh6 g5 Rf8 g4 Rg5 Qd1 Bb2 Qa1 Nh5 Qa3 Bc3 Bg8 e6 Kd6 e7 Nf1 e8B Be6 Bb2 Bc3 Bc1 Nd2 Bb2 Rg8 h8B Rg7 Ba1 Re7 Kg6 Rh7 Bf6 Rh8 Bd8 Rh7 Ng7 Rh4 Nh5 Bg7 Ba8 f3 Baf6 Bh8 Bfe4 Bg7 Re5 Bh8 Bf5 Bg7 Qe3 f2 Bf3 f1Q Qg1 Qd1 Qf2 Bh6 Ng7 Be3 Nh5 Bd4 Kg5 Bc3 Bfe7+
4n1Br/Bb3pbB/6bN/B1R5/q1p1p3/1kPRB1K1/2q2Qp1/1nN1b1nB b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 Ke2 a5 Ke1 axb4 f4 hxg4 Ba6 e5 Ba3 e3 Bc1 e4 Bc4 Ra5 Bf1 Re5 fxe5 b5 a4 Ke7 d4 Ke6 h4 Kd5 a5 c5 h5 g5 h6 c4 c3 e2 Kf2 e1N h7 b3 e6 b2 a6 b4 a7 b3 a8B+ Bb7 e7 Qc7 e8B Qb6 Na3 b1Q Rh3 b2 Nc2 Nd7 Be3 Qa6 Kg3 Ngf6 Qf3 Nc5 Ne2 Nb3 Bg2 Nd2 Bh1 Qa4 Bd7 Ne8 Qf2 Nef3 Nc1 Ng1 Bf5 Kc6 d5+ Kb5 d6 Bg7 d7 Ka5 Nd4 Qc2 Bg6 b1B Nf5 Ba2 Rb1 Bb3 Nh6 Kb5 Rb2 Nb1 Rh5 Ka5 d8B+ Kb5 Kg2 g3 Ba5 Rg8 Rh3 g4 h8B Rf8 Bh7 Rg8 Kf1 g2+ Ke1 Rf8 Bg8 g3 Ba7 Qa2 Rh5+ Ka4 Rf5 Ka3 Rc5 Ba4 Rb6 Bd7 Rd6 Bf5 Rd1 Bg6 Rd3 Bc8 Bc6 Bb7 Bd7 Kb2 Bh3 Qa4 Na2 Kb3 Bf5 Bd4 Bf6 Be5 Bg5 Bg7 Bh7 Rh8 Be3 Ne2 Bg8 g1B Kf1 Bh2 Kg2 Bg1 Kh3 g2 Kh4 Bh2 Kh3 Ng1+ Kg4 Bg3 Nc1+ Ka3 Qd2 Be1 Qf2 Kb2 Kg3 Bh5 Ne2 Kb3 Bfh7 Bg6 Nc1+
BB2b1B1/1p1q3p/1NR4k/B4b1N/2bB2b1/rPR2n2/p1Bbp1KQ/b1r5 b - - 0 1 illegal: No proof kernel
1r1B1K2/RBb5/N2rRbp1/2Q5/5Pnk/R3rn1n/1R1n1N1p/3Bq2B b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 a4 fxe4 axb5 g5 h4 gxh4 b3 Be6 Ra6 Bh3 Ra1 Bc8 g4 a5 g5 a4 g6 a3 b6 Ra4 g7 Bd7 Qg4 Ra8 Qg3 Ba4 Qg6+ hxg6 bxa4 Rh7 Nc3 Rh6 Nb1 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 c5 Ke6 h3 Kf7 e5 d4+ e3 b7 c4 a5 e4 d6 h2 d5 a2 d7 c3 d6 c2 a6 Nc6 b8R Na5 a7 Rh5 Nd2 e2 Bg2 e1N Nh3+ Kg4 Rb2 e3 Nb3 e2 Bg5 c1R f4 Rb8 a8B Rc6 Bb7 Nc4 Nc5 Nd3 Rhe1 Nf6 g8B Nf2 Na6 Nd2 Bh1 Qa5 d8R Rb6 d7 Bd6 Rf8 Bc7 d8Q Rd6 Qe7 Qc3 Bh4 Re5 Rd8 Re4 Kf8 Re3 Bb3 Kh5 Rc8 N6g4 Bd1 Qe5 Re8 Qc3 Rg1 e1N Rg3 Nef3 Bg5 Qb4 Qe5 Qa5 Qc5 Qc3 Bd8+ Qe5 Ng5 Nh3 Re6 Kh4 Ne4+ Kh5 Rab1 a1B Ra2 Bc3 Nf2 Bd4 Rbb2 Bc3 Re7 Kh4 Ra3 Qe4 Re6+ Bf6 Rg1 Qb1 Re1 Rc3 R1e4 Re3 Rea4 Qa1 Nb4 Qc1 Ra7 Qb1 Na6 Qc1 Bb3 Qe1 Bd1
2br1B1b/bb4Nq/4Q2n/R2p2q1/1N2rB2/2n3P1/4p3/1NKRkNRR b - - 0 1 legal: proof: e4 a5 b4 b5 h4 g5 a4 gxh4 c3 f5 exf5 c6 Bd3 c5 Bc2 c4 d4 cxd3 bxa5 dxc2 axb5 Bh6 Qd4 Bg7 Qd1 Bf8 Kd2 Kf7 f4 Kf6 g3 h5 a6 e5 b6 e4 a7 h3 b7 h4 c4 h2 c5 h3 c6 Rh4 c7 Nc6 b8R Nd4 Nf3 Nb5 Qe2 Bg7 Qc4 Bh8 Qe6+ Kg7 f6+ Kh6 f7+ Kh5 f8B Nh6 f5 Kg4 Rb6 Nc3 Rd6 Rb8 Rg1 h1B a8R h2 R8a5 Bg2 Rd3 h1Q Nh2+ Kh3 Nf1 Qg5+ Re3 Rf4 Re1 d6 Rd1 e3+ Kd3 e2 Kd2 Kg4 f6+ Kf3 f7 Qhh4 Rh1 Kf2 Rg1 Bgb7 Rh1 Bd7 c8N d5 Na7 Rd8 Nc6 Bdc8 Nb4 Qhh5 Bd6 Qhh4 f8N Re4+ Bf4 Qh3 Ba3 c1B+ Kc2 Bd2 Rg1 Be1 Kc1 Qhf5 Rh1 Qh7 Qf5 Qh4 Nc6 Rde8 Nfd2 R8e6 Kb2 Qh2 Rc1 Rd6 Ne6 Rc4 Ng7 Re6 Bf8 Re8 Na3 Qh5 Qe6 Rd8 Nb4 Re4 Kc2 Qg5 Rab1 Kg2 Ra1 Bf2 Kb2 Bc5 Rcg1+ Kf2 Nf1 Ba7 Rd1 Qhg6 Nb1 Qh7 Rd3 Ke1 Kc1 Bb6 Rd2 Ba7 Rd1+
1Kn3qr/1b2P2R/6rn/q1Rb2B1/1N4R1/1Qr2B1R/b1Nq4/1nkqBB2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kc5 Ke4 Kd6 f5 c4 a5 b4 h5 c5 d3 c6 a4 c7 d2 e3 f4 b6 a3 g6 a2 g7 h4 b7 g2 b5 f3 b6 f2 Rh3 g3 Ne2 Kd3 e4 g1Q e5 Nh6 g8B Nc6 b8B Ra3 e6 Ne7 b7 Rc3 Rh2 g2 Bf7 h3 Qb3 d1Q Qb6 Kc2+ Bd2 Qg8 Rh1 Qh2+ Nf4 g1R Bh5 Rg6 Bf3 Qg2 Qb4 h2 Nd3 Qg5 Rg1 h1B Be1 Qgd2 Rg4 Bg2 Ba7 Bh1 b8R Bb7 Be3 Nc8+ Ke5 d5 e7 d4 Bg5 Bg2 Qa3 Bd5 Rb3 Bh1 Qa4 Bb7 Nb4+ Kc1 Ra3 d3 Qb3 Bd5 B1g2 f1N Bh3 Nb6 c8R Bb7 Rc5 Nc8 Be2 Bhd5 Bf3 Ne3 Bf1 Nc2 Ra6 Na3 Rf6 Na7 Kd6 Nc8+ Kc7 Rc4 Nc3+ Nb1 Nb5 Rc3 Rf5 Qf4+ Re5 d2 Na3 Qd4 Na6 Qb4 Kb8 Qa5 Re6 Qe2 Re3 d1B Nb4 Qd2 Rd3 Be2 Re3 Bec4 Nac2 Nf5 Bh1 Kd1 Qb2 Bb3 Bb5 Bbc4 Rh4 Bb3 Rh7 Nh6 Rh3 Bbc4 Bg3 Bb3 Nd3 Bbc4 Nc1 Na3 Nd3+ Ke2 Rg1 a1Q Be1 Kd1 Rg4 Ba2 Qb3 Qac1 Ndb4 Nb1 Nd4+ Qcc2 Bf3+ Kc1 Bf1 Qd1 Ndc2
5R2/1rnN1Bb1/1BqR3n/1B1n1Rbn/P1B1K1k1/q1R3r1/q1NqQ3/6b1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 d4 Ke7 Kd2 Kf6 Kd3 h5 e4 b5 a4 c5 d6 b3 d5 b4 d7 h4 d6 c4+ Ke3 Kg5 e5 f5 e6 c3 e7 c2 e8B f4+ Kf3 b2 Bg6 h3 Qd2 b3 Be4 h2 Qf2 Na6 Bc4 Rh3 Nc3 b1Q Bed3 b2 Qb6 Rb8 Nge2 g1Q Qb5+ Qc5 Ra3 g2+ Ke4 g1B Nd5 Nc7 Be3 c1B Nd4 Rb7 Nf6 Qa2 Rc3 b1N Nc2 Bg7 Qa6 Kh4 g5 f3 g6 Qca3 Bb6 f2 Bf7 f1Q Bb5 Bg5 Bfc4 Qc8 d8R Qfc1 d7 Rg3 Rf8 Nh6 d8R Qd2 Nd7 Kg4 Rf5 Nd5 Rdf8 Qc6 Rd3 Nc7+ Rdd5 B7d4 g7 Bb2 g8B Nc3+ Ke5 Ba1 Rd6 N3d5+ Ke4 Bg7 Bf7 Bc5 Re1 Bg1 Re3 h1N Rc3 Rg2 Rff6 Ng3+ Ke5 Nh5 Ke4 Rg3 Rf5 Qac1 Qa8 Qcb2 Qe8 Qba3 Qe5 Rd3 Qh2 Rg3 Qe2+
1B4bn/1q1N1n2/2QR1n2/2P2nN1/2qbbN2/2N3BB/n1B1bR2/Kn4kq b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 d5 exf4 d6 f3 Bh6 cxd6 Be3 d5 Bc1 d4 h3 h5 Bh6 b5 Bf4 g5 Bc1 f4 Kf2 Rh6 Ke1 Rf6 h4 Rf5 gxf5 g4 Ba3 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Bc5 Qd2 Be7 Qd1 Bf8 Kd2 Kf7 a4 d5 c4 d3 e4 f2 a5 f3 f6 Kg6 c5 g3 a6 d4 a7 g2 a8B b3 f7 b2 e5 Kf5 g6 Kf4 g7 Kg3 e6 b4 e7 h4 e8N h3 Be4 b3 Qe1 h2 Be2 Qd5 Nd6 Nh6 g8N Qb7 Bf1 Nd7 Kd1 d2 Be2 Bg7 Nc3 b1B f8B b2 Nh3 g1N Ra7 Kg2 B4d3 f1N Na2 f2 Bb5 Nf3 Bed3 Nfe5 Bbc4 Ng6 Qe8 Ng3 Nf7 Ngf5 Ra6 Nh8 Rf1 h1Q Bd6 Bf6 Bb8 Be5 Ne7 Nf6 Nd5 Be6 Nfg5 Bg8 Rd6 N6f7 Nb6 Kh2 Bb3 Kg2 Bdc4 Be4 Bc2 b1N Nc3 Kh2 Qc6 Kg2 Re1 f1Q Nd7 Kh2 Be2 Kg2 Bg4 Qc4 Rf1 Kh2 Bd3 Kg2 Kc2 Kh2 Qb6 d1B+ Kb2 Be2 Bc2 d3 Ka1 Bd4 Bf4+ Kg2 Bg3 d2 Bh4 Kh2 Qc6 Kg2 Rf3 Kh2 Nf4 Kg1 Bg3 d1N Bh3 Be3 Na4 Ndc3 Rf2 Na2 Nc3 Bd4 Bd1 Qa8 Bb3 Qb7 Bc2
1K1RN1rN/4R2R/3nqqN1/bn2RP2/nq6/1p2Nkb1/1Br2Q2/b1r4B b - - 0 1 illegal: No possible last move
q1b2N1r/1q2b1NP/4r1R1/Bn1r3Q/Bp1q1R1n/B1B4R/1Rk3n1/K2b4 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 d4 d5 g4 hxg4 cxd5 c5 Qb3 cxd4 Qa4+ Nd7 Qd1 Nb8 Kd2 Kf7 Kc2 Kf6 Kb2 Ke5 f4+ Ke4 h4 e5 a4 b5 h5 g5 f6 g3 f5 g2 a5 d3 f7 g4 f6 d2 a6 g3 d6 b3 a7 b4 h6 Qc7 h7 Ba6 d7 Qb7 d8B Be7 f8R Nh6 f7 Nf5 Nh3 g1R Nf4 g2 Nh5 Nc6 Na3 Nh4 Rh3 Nd4 Ba5 Nb5 Ng7 Rd8 a8R Rd5 Qh5 d1B Nc2 Rh1 Bc4 g1Q Ra3 Qd4+ Kb1 b2 Bb3 Rf1 Ba4 Rf6 Rab3 Re6 Rac8 Qa8 Rc6 Bc8 Ra6 Ng2 Ka2 b1N Rc6 Nd2 Ba3 Nf3 Rb6 Nfh4 Ra6 Qb6 Nd4 Qbb7 Ka1 Rh6 Nf3 Re6 Ng5+ Kd4 Rd6 e4 Rb6 e3 Rc6 Re4 Rg6 e2 N5e6+ Kc4 Re8 e1Q f8B Qg1 Rd8 Bg5 Bd6 Re2 Rf8 Be7 Be5 Qga7 Bc3 Qd4 Rf1 Re4 Nf8 Re6 Rh2 Kd3 Rh3+ Kc2 Rff3 Qg1 Rf4 Qd4 Rb2+
1qq2BqQ/2B1q3/B1n1bqn1/2RrR3/2Rp4/k1R1Pb2/B5r1/2KNN2n b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 c4 Kd6 b4 f5 g6 a5 g7 h5 b6 g2 e3 h4 b7 h3 b5 Kc5 b6 Kb4 c5 d5 c6 h2 c7 a4 Nc3 d3 Ra2 a3 Be2 g3 Bg4 f4 Nb1 f3 Qe1 d4 Ne2 g1Q Qf1 f2 Rc2 a2 Rc5 a1Q Nec3 g2 Be2 Qa3 Nd1 Ne7 g8B Ng6 Ba2 Be6 c8R Nc6 b8R Rh5 b7 Rd5 Qe1 f1Q Qh4 Qf4 Qh8 Qgf2 Rg1 Qa7 Na3 h1N Nc2+ Ka4 Rc7 Qc8 Ba3 Qd6 Re1 g1Q Kc1 Qf6 Rf1 Qgg3 Ne1 Qde7 Rf5 Qgg5 Re5 d2+ Kc2 Qg4 Ba6 Qg8 Rbc8 Qb8 Nf2 d1B+ Kc1 Be2 Nd1 Bf3 Rc3 Qh3 Bd6 Ra7 Rc5 Ka3 Rc4+ Nb4 R7c5 Nc6 Rc7 Qbc8 b8B Qg3 Rd7 Rb7 Bbc7 Rb2 Rd8 Rg2 Rd7 Qed8 Bf8 Qgh4 Re7 Qb8 Rg7 Qdc8 Rh7 Qe7 Rh6 Qhf6 Rh2 Rg4 Rhc2 Rg2 R2c3+
1nNb4/3Q4/Rq1p2qk/2bbb2B/NBnrR1B1/bP2rB2/4r3/1K3RR1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 h5 exf5 gxf4 g5 Nc6 Qe2 Nb8 Qg4 hxg4 Kd2 Kf7 h4 Kg7 c4 e5 Kc2 a5 b3 e4 f6+ Kg6 c5 g3 f7 f3 b6 a4 b7 f2 c6 a3 c7 a2 Nh3 g2 Ba3 g1B Bg2 f1Q Bb4 e3 Nc3 e2 Nf2 e1B Bf3 Qg2 Na4 Ne7 h5+ Kh7 h6 d3+ Kc1 Nec6 Ne4 Ne5 Nd6 Bc5 Rg1 d2+ Kb2 Be7 f8R Bh4 Rf6 Ra7 Raf1 a1B+ Kb1 Re8 Re6 Nc4 Re4 Kg6 h7 Be5 h8R Kg7 g6 Bf8 Rg8+ Kh6 g7 Qg6 Bh5 Bfe7 Rgf8 Ra6 g8B d1R+ Kc2 Rc6 Bd5 Rd4 R8f6 Bg5 Kb1 Bf8 Nb5 Rce6 Na7 R6e7 Ra6 Re6 Bd2 Ba3 Ba5 Bfc5 Bb4 d6 Bc6 Bd7 c8B Qb6 Bd5 R6e7 Bc6 Bh3 Bcg4 Bg2 Nc8 Re6 Bd5 Bd8 Bc6 Rf6 Bd5 Rf3 Bc6 Re3 Bd5 Nc6 b8Q Bf3 Qa8 Nb8 Qc6 Rf8 Qd7 Qg5 Rf4 Qg6+ Be4 Re2 Bd3 Bd5 Be4 Rf5 Bh1 Re3 Re4 Rf2 Bg2 Rfe2 B2f3
2B1B1bb/n1k1qNbr/b7/PBNN1R2/r5p1/n4Qb1/3KbR2/1b1BN3 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 hxg4 d4 axb4 Nc3 c5 dxc5 g3 Nb1 f6 Bg5 fxg5 Qd6 g4 Qd3 Qf6 Qd1 Qd8 c4 g5 e4 b5 a4 d5 h4 Kd7 c6+ Kc7 e6 b3 e5 b4 c5 g2 h5 d4 e7 b2 e8B g3 h6 b3 e6 g4 e7 d3 h7 d2+ Ke2 Nh6 Bf7 Nf5 e8B Nd6 Nc3 b1B Ra2 b2 Nf3 g1B Ne4 g2 Ne1 Bg7 Bb3 B1d4 Rh5 g1B Rf5 Qe7 Bc2 Nc4 a5 Ba6 Kd3 Bgf2 Qf3 d1B Be2 Rf8 h8N Na3+ Kd2 Ra7 Nf7 Bg3 Bb5 Be2 Bca4 Bbd3 Bd1 b1B Rb2 Bc4 Rc2 Kc8 c7 Nc6 Rb2 Kb7 c8N Kc7 Nb6 Rb7 Rc2 Na7 c6 Rh8 Rb2 Rh7 Nc5 Bh8 Ra2 Bdg7 Nd5+ Kc8 Bba4 Rb4 Bb5 Ra4 c7 Bb3 Ne4 Kb7 c8B+ Kb8 Nc5 Bbc4 Nb4 Kc7 Rc2 Be6 Nd5+ Kb8 Nd8 Bf1 Kc1 Bg8 Nf7 Bd3 Rf2 Be2 Nb4 Kc7 Kd2 Qe5 Rf4 Qf6 Rf5 Qe7 Nd5+
nb2q3/1rr2k1R/2R2b2/2bR1B2/n4rBQ/b3N3/pqPBrRK1/2B3N1 b - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 fxe4 Ra2 c5 Ra1 cxd4 g4 hxg4 b3 a5 b6 a4 Ke2 a3 Ke1 Bb7 Qd2 Bc6 Qd1 Ba4 bxa4 Ra6 Bd3 Ra5 Bf1 Ra8 h4 d5 f4 e5 Kf2 g5 h5 d3 h6 d4 b7 d2 h7 a2 f5 d3 f6 e3+ Kg3 e2 a5 e1B+ Kg2 g3 a6 g4 a7 e4 Rh5 e3 Ra5 e2 Rf5 Nd7 b8R Ba3 Rf3 Nb6 Kh1 g2+ Kh2 g3+ Kh3 Kf7 Re3 Na4 Rb3 Rc8 a8B Qe8 Nf3 g1B Rb4 g2 Nc3 Bh2 Be4 g1B Rb7+ Rc7 Nd5 Bh4 Bf5 e1R Be2 Ne7 Kg2 Rf8 h8B Nc8 Re6 Bgc5 Rc6 Ncb6 Ng1 Na8 Beg4 Re4 Qe2 d1Q Qf2 Re2 Ne3 d2 Rab1 Qe1 R1b5 d1R Bg7 Qa5 Bh6 Qb4 Bg5 Rdd7 Bf4 Bb6 Rd5 Bc5 Bg5 Qb2 Bd2 Kg8 f7+ Kg7 Bf4 Bf6 Ra7 Rb7 Bg5 Bb8 Bc1 Rh8 f8R Rdc7 Rf7+ Kg8 Bf4 Rh3 Rh7 Rf3 Bh6 Re1 Qh4 Rf4 Ra5 Qee5 Rd2 Qe8 Rf2 Re2 Bd2 Bd6 Rd5 Bdc5 Bf8 Bh8 Bd6 Bf6 Be5 Kf8 Bec3 Kg8 Bc1 Kf8 B3d2 Kg8 Rh8+ Kf7 Rh7+
R2kbb1N/K7/R2B3n/1q3q2/nr1RQr1N/b3rp2/1R1P2r1/B1B1B1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 a5 b4 f5 e4 g5 Ke2 c5 Ke3 g4 Kf4 a4 Ke5 f4 d6 a3 h5 c4 d7+ Ke7 h6 a2 b6 c3 h7 c2 b7 Qb6 d8B+ Kd7 b5 Qc6 b6 Bh6 Bh4 Qc4 Nc3 Bf8 Nce2 Nh6 Nf3 g1Q Qe1 g2 Rh3 Rg8 h8B Qf1 Bf2 g1R Nh4 f3 Nf4 g3 Nfg6 g2 Bf6 Qce2 Nh8 Ra3 Rg3 Rg7 Rg4 Qd3 Qe2 Rb3 Be1 Rf7 Qe3 Rb4 Qf4 Na6 b8B Nc7 b7 Nd5 Bd6 Nb6 b8R Ba6 Ra8 Bb5 Rb1 a1R Rb2 Qfe2 Ra6 Ra3 Qe3 Ke8 Ke6 Qf1 e5 Bc6 Bg7 Kd8 Rd4 Be8 Qe2 Rf4 Qe4 Na8 Kd5 Nb6+ Kc5 Rab3 e6 Ra3 Qd5 Qg6 Qe4 Re3 Be5 Qd3 Bg7 Qf5+ Be5 Bh5 Kc6 Be8+ Kb7 Qb5 Kb8 Rh1 Rc4 g1B Bc3 Rh2 Rd4 Rg2 e7+ Kd7 Rba2 Qd3 Ba1 Qdb5 Ba3 c1B Rb2 Bf7 e8R Bg6 Re7+ Kd8 Rea7 Be8 Rc2 Bb2 Ra8 Bc3 Bc1 Bb2 Rd5 Ba3 Rd4 Rg5 Ra2 Rg2 Rb2 Na4+ Ka7+
1q1Q4/1R6/R1r5/2n3PN/q3B1Bq/q1B1NBnb/bqqNp3/1qk1KN2 b - - 0 1 legal: proof: g4 a5 e4 b5 h4 f5 d4 fxe4 b4 axb4 f4 c5 f5 cxd4 g5 Ra6 Nd2 Rf6 gxf6 g5 Nb1 g4 Be3 Bh6 Bc1 Bg5 hxg5 Kf8 Nf3 Kf7 Ng1 Ke8 a4 Kf7 c4 d5 c5 h5 a5 e5 c6 h4 c7 b3 a6 b4 a7 d3 a8B d2+ Kf2 b2 Nf3 e3+ Ke2 b3 Ra4 g3 Ne1 d4 Rg1 h3 Bh1 g2 Ra7 h2 Ra2 e4 Ra3 Rh6 Ra1 Na6 Qc2 Nc5 Na3 b1B Qc3 b2 Qd3 Ne7 Kd1 Ba2 Nc4 b1Q Be2 Qb2 Rf1 g1Q Bef3 Qg3 Nc2 Qh4 Bhg2 h1Q Ke2 Be6 c8B Q1h3 Re1 d1Q+ Kf1 Qb4 Bd2 Qb2 Bc3 Qh8 Bd7 Qhb8 Nd2 Qdb1 Rc1 Q4g4 Rd1 e2+ Ke1 Rg6 Nf1 Qgf4 Qe3 d3 Qd4 Qfc7 Nce3 d2+ Kf2 Qch2 Re1 Q1c2 Reb1 d1Q Qd3 Qa3 Rb7 Qca4 Bc8 Qdc2 Qd8 Qhe5 Ke1 Qh6 Bb4 Qeb2 Bc3 Qh3 Rd1 Bd7 Rd6 Rh6 Ra6 Qh4+ Ng3 Ng6 Bh1 Nf4 Bhg2 Nh5 Bh1 Qg4 Ngf1 Ng3 Kf2 Qcc1 Bfg2 Rg6 Nc4 Rh6 Ncd2 Qh4 Qe7+ Kg8 f7+ Kh7 f6 Kg6 f8N+ Kf5 f7 Rc6 Ng6 Bde6 f8N e1Q+ Kg1 e3 Nf4 e2 Nh5 Qhc4 Nh7 Qh4 N7f6 Qed1 Kf2 Qcb1 Qd8 Bd7 Nd5 Be6 Nf3 Ke4 N3d2+ Kd3 Nde3+ Bd7 Bd5 Bh3 Bg4 Qdc1 Bhf3 Qcd1 Ng2 Kc2 Bde4+ Kc1 Nge3 Qdc2 Ke1
1N5R/6nb/4B3/1p1n1PN1/q1n2B1R/2R1q1N1/rN1r2k1/qQKRrqn1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 f5 cxd5 fxe4 Nc3 Bh6 Nb1 axb4 a5 b5 Ra2 Be3 Ra1 Bb6 axb6 Kf8 Bc4 Kf7 Bf1 Ke8 g4 Kd7 d4 Kd6 Kd2 e5 f4 h5 g5 c5 g6 e3+ Kc2 b3+ Kb2 e2 b7 e1Q g7 c4 Ra3 c3+ Ka1 h3 Qd2 e4 Qd1 b2+ Ka2 c2 Ne2 h4 Nbc3 b1N Kb2 h2 Qd3 e3 Qg6+ Nf6 g8N h3 Ra7 Nc6 b8N Ne5 Nc6 Nc4+ Ka2 Qa5+ Na4 Bf5 Ng3 e2 Nh6 Rhd8 Nb8 Nc3+ Kb3 Qf2 Nb2 e1R Rc7 Qe3 Be2 Qa1 Bg4 Ra2 Qh7 Bd3 Be6 Ne8 Rc5 Ng7 Nf7+ Ke7 d6+ Kf6 d7 Nd5 Bd2 c1Q Ng5 Qe4 Rg1 h1N Be3 Nf2 Rh1 h2 f5 Nh3 Bf4 Ng1 Qh3 Be2 Qf1 Bh5 Qd3 Bf7 Qb1 Bg8 Rc7 Bh7 Rc6 Nc3 d5 Qce3 d6 Q4d4 Kc2 Nd5 Ra6 Qa7 Ra3 Qa4+ Rb3 Re8 d8R Rd1 d7 Rd2+ Kc1 Re7 Bc7 Re8 Bb6 Ke5 Rc3 Kf4 Bc7+ Kg4 Bf4 Re7 Nf7 Kf3 Rh8 Kg2 d8R Nf3 Re1 h1Q Ng5 Qf1 Rd1 Ng1 Rde8 Bg6 Rh4 Bh7 Rg8 Qd4 Bf7 Re1 Be6 Qe3 Rh8
2N5/1q3BR1/1rN2N1N/2B3bB/b1rb2bP/1R1KQB2/1rp2k1b/rqr5 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 h4 Ba3 h3 Bc1 axb6 Ba3 b5 Bc1 b4 Qb3 g5 Qf3 g4 Qd3 Nh6 Qc2 Nf5 Qb3 Nc6 Qd1 Ncd4 Bg2 Nh4 Bf1 Ndf5 gxh4 g3 Nf3 g2 Ng1 Ng3 hxg3 Bg4 Ba3 Be6 Bc1 Bc8 a4 Ke7 d4 Kf6 Kd2 Kf5 a5 Kg4 e4+ f3 e5 c5 d5 f5 e6 b5 a6 h2 d6 f4 e7 c3+ Kc2 c4 e8B Rb8 a7 Qc7 a8N Bg7 d7 Bd4 d8N Rb6 Ra7 Qb7 Be3 b3+ Kc1 b2+ Kc2 b4 Nh3 g1B Na3 b1R Qc1 f2 Be2+ f3 Nb5 f1B Ng5 Ra1 Nac7 b3+ Kd1 c2+ Kd2 b2 Nd6 b1Q Nd5 c3+ Kd3 Bh3 Ngf7 Bd7 Nc8 Ba4 Nc6 Ra2 Bf2 Rab2 Qe3 Rh6 Bd1 Rf6 Be2 Rf4 Bd1 Qa2 Be2 c1B Bd1 c2 Nf6+ Kf5 Be2 Qb1 Bd1 Bg4 Be2 Re4 Nh6+ Ke6 Bh5 Bd2 Be1 f2 Bf3 f1R Bf2 Bc1 Qe2 Bg5 Qe3 Bb3 Ra3 Ba4 Rb3 Rc1 Qe1 Be5 Bc5 Bgd4 Rg1 h1R Qe3 Bef4 N6a7 Ke5 Rg2 Bf5 g4 Bh2 Rg1 Bgf4 g5 Bg4 g6 Bg5 Rg3 Rhf1 g7 Rfe1 Qe2 Kf4 g8B Rh1 Bgf7 Rhe1 Rg2 Rg1 Rf2 Kg3 Rf1 Rf4 Qe8 Rh1 Rg1+ Kf2 Nc6 Rf5 Be7 Rc5 Rg3 Rc4 Bc5 Rhg1 Qe3+ Kf1 Ne5 Qa2 Be6 Ra1 Qc1+ Kf2 Bd7 Bd2 Be6 Bh3 Rg7 Bg4 Bef7 Qb1 Nc6 Bg5 Qf4 Rc1 Qe3+
1Rq1N2N/1b1qrB1P/NB3q1p/1n3b2/b1nN1pnr/1QkB4/B3R3/2K5 b - - 0 1 legal: proof: f4 c5 b4 a5 g4 axb4 d4 cxd4 f5 d3 g5 d2+ Kf2 e6 Nh3 exf5 Ng1 f4 Nh3 h6 Ng1 d6 Nf3 Qc7 Ng1 Qa5 Nh3 Qf5 Ng1 Qh7 g6 Be6 Kf3 Bg4+ Kf2 Bc8 gxh7 g5 h4 g4 Bb2 Be7 Bc1 Bg5 hxg5 Be6 Rh2 Bd7 Rh1 Bc8 c4 Kd7 a4 Ke6 e4 Ke5 Ke2 Kd4 g6 f5 c5 b5 a5 d5 e5 g3 e6 g2 c6 f3+ Kf2 b3 g7 b4 e7 b2 e8B b3 c7 Bb7 c8B Nf6 g8N Nc6 a6 Na5 a7 Nc4 Qc2 d1B Ke1 Ng4 Nc3 b1N Bf7 b2 Qb3 Nba3 Ne7 b1B Ra2 Re8 Ne4 Nb5 Ng6 Re7 Bce6 Bdc2 Nf6 f2+ Ke2 Rg8 a8N f4 Qb4 Ba4 Nh8 Bf5 Qb3 Rg5 Kd1 Rh5 Rb2 Rh4 Bd3 f1Q+ Kc2 Qe1 Nc7 Qe5 Nfe8 Qg7 Rh2 Qf6 Nh3 g1Q Ng5 Qe1 Na6 Qee5 Kd1 Qb8 Rhe2 Qc8 Be3+ Ke5 Bb1 d4 Kc1 d3 Nf3+ Ke4 Nd4 Ke5 Ba2 Ke4 Kb1 d2 Bd5+ Ke5+ Be4 d1Q+ Bc1 Qh1 Bd3+ Qe4 Be3 Qec6 Kc1 Q6d7 Qa3 Na7 Rb6 Nb5 Qb4 Bd5 Rb8 Bb7 Ne6 Kd5 Qb3 Ke5 Bb6+ Kd5 Nec5+ Kd4 Qd1 Rh5 Nb3+ Kc3 Nd4 Rh4 Qb3+
2b1b3/1R2R1q1/3bB1k1/2rR2qp/q1N2NP1/n1BpBBr1/2R4n/2K1bQ2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 c4 Kf7 Kd2 d5 f4 e5 g3 h5 b6 h3 b7 b3 f6 h2 c5 e4 f5 b2 c6 d3 c7 d4 Ne2 Nc6 b8B Ne5 Bg2 Ra5 Ra2 Bd6 Nf4 Rc5 Na3 b1Q Rc2 Qa1 Bf3 Nh6 Re1 h1B Nc4 Nhg4 Qe2 Qa7 Qf1 Nh2 g4 e3+ Kd1 d2 Bb2 Qg8 Bc3 Qg5 Re2 Qa4 Ba7 Rd8 Re1 Qe8 Re2 Qf8 Re1 Qfg7 Re2 Bd7 c8B Be8 Bd7 Rb8 Re1 Rb3 Be6+ Kf8 f7 Ra3 Be2 Bb7 Bf3 Bc8 Re2 Ke7 f8R Rb3 Rh8 Kf6 Rh7 Ra3 Rc1 Rb3 Rb1 Ra3 Rb7 Rb3 Rf2 e2+ Kc2 e1B Bb6 Q7g6 Rhe7 Qg7 Re2 Ra3 Kb2 d1Q Rc2 Qd3 Kc1 Qe4 Bd2 Re3 Bc3 d3 Ba7 Qc6 Bb6 Qa4 Ba7 Qf7 Bb6 Kg7 f6+ Kh6 Ba7 Qfg7 f7 Kh7 f8R Kh6 Be2 Rg3 Rf5 Kh7 Bf3 Kh6 Nd2 Nc4 Rd5 Na3 Nc4 Kh7 Bb6 Kh6 Bd2 Kh7 Be3 Kh6 Ba5 Kh7 Bc3 Kh6 Ng2 Kg6 Nf4+
r3qnbR/n2Nnnq1/N1NpNP1B/r2kbQ2/5b2/Bp1K4/2B2R2/7B b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 Ke2 Kf7 c4 e5 g4 h5 f4 d3+ Ke3 d2 f6 Ke6 b6 d6 c5 h3 f5+ Kd5 f7 e4 c6 b3 f6 h4 g5 h2 c7 h3 g6 Nh6 g7 Qe8 g8N Ra5 b7 Nd7 Qg4 d1N+ Kd2 e3+ Kd3 e2 b8N e1B Ra2 Bb7 c8B Bg3 Nd2 Nc3 Ba3 Nb5 Nc4 Na7 Qf5+ Be5 Rf2 Bg7 f8B Nf7 Ne2 Bh6 Bg7 Bf4 Bh6 Nf8 Nd4 Bc6 Be2 Bd7 Na6 Be6 Ra1 h1Q Bd1 h2 Bc2 Qg2 Rh1 Qg6 Bd7 Qg7 Bc8 Bd7 Ne6 Bb5 Bb7+ Bc6 Rd1 h1N Ba8 Ng3 Rh1 Ne2 Rh3 Nd4 Rh5 Bb7 Rh1 Ndc6 Rh5 Ne7 Nb6+ Kc6 Nd7 Kd5 Ke2 Kc4 Rh1 Bd5 Bc6 Neg6 Ne7 Rg8 Ba8 Rh8 Nc6 Ne7 Ng5 Be6 Rh5 Kd5 Kd3 Nd8 Rh1 Bg8 Ne6 Nf7 Bg5 Rh4 Rh3 Rg4 Rh8 Rg1 Bb7 Ra1 Bh6 Nac8 Bc1 Rb5 Nac5 Ra8 Na6 Na7 Ba3 Rc5 Ke2 Kc4 Ncb4 Ra5 Bh1 Qb8 Nc6 Qe8 Rg2 Kd5 Kd3 Qg5 Rf2+ Qg2 Rf3 Qg7 Rf2+
3N2n1/6rp/1R2B1qB/1brpnPQ1/k2R1R2/2r1BqrR/Kb3n2/B5N1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 e5 b4 d5 f4 Kd7 c4 h3 Kc2 e3 Kb2 a4 c5 e4 g5 a3+ Ka2 d3 b6 Kc6 b7 Kb5 c6 h2 g6 e2 g7 e1N c7 e3 Qg4 e2 Bh3 d2 Qg5 d1R Be6 Qf6 f5 Ka4 b5 Rd3 b6 Nd7 b8B Rc3 b7 Qg6 Nd2 Ne5 Nb3 Bd7 c8R N1d3 Be3 e1R Nd4 Bb5 Nc6 Ra7 Nd8 Nf2 Rc6 Rec1 Rb6 Rc5 Bc7 R1c3 b8B Be7 Bd6 Bf6 Bf8 Re7 Rd1 Ra7 Nf3 Rd7 Rhf1 h1Q Ng1 Qf3 Bc7 Nh6 g8R Rg7 Ka1 a2 Bcd6 R5c4 Bdc5 Rg4 Bcd4 Rg3 Kb2 Ra7 Rg7 Ng8 Re7 Rac7 Bh6 R7c5 Rc7 Ne7 Ka1 Rg8 Rcb7 Rg7 Ra7+ Kb4 Ra3 Ng8 Kb2 R3c4 Rad3 Ka5 Ka3 a1Q+ Kb3 Qc3+ Ka2 Qd2+ Bb2 Ka4 Rb3 Qb4 Ba1 Rc3 Rbb1 Nc4 Qg4 Rb3 Nh3 Nh1 Rde1 Bb2 Qg5 Qe2 Rf4 Nf2 Rh1 Rc3 Ng1 Qf3 Rd1 Ne5 Rh3 Qd4 Rdxd4+
2bn1N2/B1K1p1B1/2R1Nn1r/1pq2RN1/1n4Br/4q2r/1rNk1B1P/5Q1b b - - 0 1 legal: proof: b4 b5 e4 f5 c4 fxe4 a4 d5 cxd5 h5 g4 hxg4 a5 g6 Ba3 Bh6 Bb2 Be3 Bc1 Bb6 axb6 a5 Qa4 axb4 Qc2 Rh5 Qd1 Rh8 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 Ke5 d3 g5 d6 g3 d7 c4 b7 c3 f3 c2 Ra4 g2 Ra6 b3 Rc6 g4 Nh3 g1R Be2 b2 Ng5 g3 Qf1 g2 Na3 Qc7 d8B b1B d4+ Kf5 f4 Ra6 d5 Nf6 Kd4 e3 Kc5 Rh3 Bd2 c1Q+ Bc3 Be4 d6 Ra4 Bd1 e2 d7 e1N Nc2 Qe3+ Bd4 Qe5+ Kb6 Qc5+ Kc7 Nd3 Bf3 Nb4 Bg4+ Kg6 f5+ Kh6 Qf3 Rb1 Rf1 g1R Qe2 Rgg3 Rf4 Bh1 Qf1 Rg2 Ba1 Rd1 Bc3 Rd6 Bb2 Nh5 f6 Re2 f7 Nf6 f8N Red2 Be6 Kh5 Rf5 Kg4 Bd4 Rf2 Rd5+ Kf4 Bg4 Ng8 Bg7 Nf6 Nf7 Ke4 Rf5 Re2 Ng5+ Kd3 Na3 Kd2 Nc2 Qd5 Rc4 N8c6 b8B Qdc5 Ba7 Ra2 Re4 Rd4 Re6 Ra6 Rd6 Na5+ Rc6 Nb7 Kb8 Rg2 Bdb6 Nd8 Kc7 Re2 Bh5 Rdh4 Bg4 Nf7 d8N Rf2 Nde6 Nd8 Qg2 Qa3 Ne3 Kc3 Ngh7 Rb2 Nhg5 Qc4 Nd4 Ne4 Qf1 Kd2 Rcc5 Qc2 Rc4 Qad3 Bc5 Rah6 Nde6 Nf6 Bd4 Qdb3 Rc6 Qc5 Nc2 Qa3 Bg1 Qae3 Bf2
3Qb3/3p1rqn/5r1B/1R1r4/k1R2NpK/1qnr1NP1/4n2B/1RR1NbN1 b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 f4 e5 b6 exf4 b7 a6 b4 g5 h4 g4 b5 Nf6 e3 Be7 b6 Ng8 Bb5 Bg5 hxg5 axb5 Kf2 h5 c4 f5 e4 d3 g6 f3 Kg3 h4+ Kf4 f2 e5 f1R+ Qf3 h3 Kg3 d2 g7 d1Q c5 f4+ Kh2 b4 e6 b3 c6 b2 e7 Nf6 g8N Rh7 c7 Qb3 Nc3 b1N Qe4 f3 Kg3 h2 Nce2 f2+ Nf3 Ra5 Ng1 Nc3 Rb1 Rd5 Bh6 Nc6 b8B Ba6 c8R Bc4 b7 Rf7 Kh4 Nd4 Ne1 Nh7 Qf3 Bd3 Qf6 Nde2 Rc4 Bg6 Bbf4 Qa5 b8N Qa1 Nc6 Qab2 Nd4 Bh5 Nef3 Rd1 Bb8 f1B Ne1 Rd3 Ndf3 Qa1 Qg5 Rf6 Bf4 Kf7 Rc1 Ke6 Bd6 Rf7 Nf6 Bg6 Nh5 Rf6 g3 Be8 Bc5 Qab2 Bb6 Kd6 Nf4 Qa1 Bc5+ Kc6 Rb1 Kb5 Bd4 Bf7 e8R Bh5 Re5 Be8 Ba7 Rf7 Qd8 Rf6 Ngh3 Qab2 Rg1 h1R Bc5 Rh2 Rh1 Rg2 Bg1 Rf2 Bh2 Qa1 Nhg1 Rf7 Rc7 Ka4 Rc1 Nb1 Rf5 Qg7 R7c2 Nbc3 Re5 R5d4 Rb5 Rd5 Rb1 Na2 Rc6 Nac3 Rc4+ Qb4 Ngh3 Bg2 Nc2 Ng5 Rhc1 Qg8 Nce1 Qg7 Nh5 Nh7 Ne5 R2f6 Ng1 Bh3 N5f3 Bf1 Rcc5 Qa3 Nf4 Qb3 Rc4+
1K1k2nr/B1nrq3/2qN1N2/1bN5/pR5N/R2B1Q2/n1pR1P1R/1r1n2n1 b - - 0 1 legal: proof: c4 b5 e4 d5 a4 dxc4 axb5 f5 Qf3 fxe4 Qd1 g5 h4 gxh4 b4 a5 Nc3 a4 Nb1 Bg7 Qb3 Bd4 Qc2 Bb6 Qd1 Ba5 bxa5 Bd7 Nf3 Bh3 Ng1 Bc8 Ke2 e5 Ke3 c5 d4 h5 g4 c3 a6 c2 a7 h3 d5 h4 g5 c4 d6 c3 b6 h2 b7 h3 g6 Qe7 d7+ Kd8 g7 Na6 b8R Nc7 Rb4 Ba6 Ra3 Bb5 Nd2 Rc8 Bb2 c1N a8R c2 Ngf3 Na2 Bd3 Rb8 Ra5 Rb7 Nh4 Ra7 Qe2 Rb7 Rd1 h1Q Nc4 h2 Bd4 Qg2 Bc5 h1R Rd2 Rb1 Qf3 Qg6 Ba7 Qc6 Ke2 e3 Nd6 e4 Ra6 Bc4 Ra5 Ba6 Rg5 Bc4 Rg2 Bb5 Rh2 Rb3 Kf1 e2+ Kg2 e1N+ Kg3 e3 Kf4 e2 Kf5 Rb1 Kf4 Nf6 g8N Ng2+ Kf5 Ne3+ Kf4 Nfg4 Nf6 Nd1 Kf5 e1N Kf4 Qf8 Kf5 Nh6+ Ke5 Ke7 d8N Ng8 Ne6 Qfe8 Nc5 Kd8+ Kf4 Qe7 Kf5 Ne6 Ke5 Rd7 Qe3 Qc8 Qh3 Nf3+ Kd5 Ng1 Qf3 Bc4+ Ke5 Ba6 Kd5 Nc7+ Kc6 Bb5+ Kb6 Qa8 Bc4 Qd5 Bd3 Qde6 Kb7 Qc4 Kb8 Qce6 Ndf5 Qc6 Nd6
Bb2Q2n/1KBBp3/1N1kB3/q1q5/nNnn3N/1n1N4/q2pR2P/2rb1R2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 b4 fxe4 g4 h5 Ke2 hxg4 Ke1 a5 Ba3 a4 Bc1 Ra5 bxa5 Ba6 Bf4 Bb7 Bc1 Bc8 Ke2 g5 f4 d5 c4 Kd7 f5 e3 Kd3 e2 c5 e1Q c6+ Kd6 b6 g3 c7 a3 b7 a2 a6 g2 a7 g4 a8B g3 f6 Bg7 f7 Qe6 f8N Be5 Be3 Nh6 Nf3 g1Q Bd2 g2 Qa4 Na6 b8N Nf7 Ba5 Nc5+ Kc2 Bb7 Qe8 Na4 Kb3 d3 Kb4 d2 Kb5 d1N c8B d4 Ng6 d3 Nfh4 d2 Nd7 Bf3 Ka6 Ne3 Na3 Nc4 Nf4 Bd1 Kb7 Qc5 Nd3 g1N Nb6 Nf3 Nc2 Nd4 Ncb4 Bf4 Rb1 a1N Bh3 Nab3 Re1 Rh6 Bg4 Nh8 Re2 Rg6 Bf5 Rg1 Bd7 Bc2 Bg6 Ncb2 Re4 Nc1 Bf5 Qa2 Bfe6 Ncb3 N6d5 Nc4 Bb6 Rf1 Ba7 Qda5 Bb6 Be5 Bd8 Rh1 Rbe1 Bg3 R1e3 Rc1 Nb6 Bd1 Re1 Bf4 Rf1 Be5 Re2 Bf4 Ref2 Bg3 Nf4 Ke5 Rg2 Ke4 Nfd3 Bb8 Ne1 Ke5 Ned3+ Kd6 Rgf2 Ncb2 Re2 Nc4 Bc7+
q1R3NN/5N2/1n2q2Q/1rbr1Rb1/r1p1B1kB/3B3p/P3q1Bb/K2N3r b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Ba3 f5 Bb2 g5 Bc1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Bg2 Nc5 Bh3 Ne4 Bf1 Ng5 hxg5 Kf7 Ba3 Ke7 Bc1 Ke8 d4 Ke7 Kd2 h5 Kc2 c5 Kb2 b5 e4 b3 f6+ Ke6 f7 b4 g6 h4 g7 g3 e5 Kf5 d5 h3 e6 g2 d6 f2 d7 f3 e7 Nf6 g8B Rh5 e8B Nd5 Nc3 Nb6 Qe1 Kg4 Bd3 f1Q Bg5 f2 Rc1 Qe2+ Ka1 f1R Qd2 Ra4 Bgh7 Qa8 Bh4 Rd5 Ne4 c3 d8N c2 Qh6 Rff5 Rf1 c1B Bc6 Bg5 Rf2 Bd6 f8N Bh2 Nf7 c4 Ng6 Rb5 Ngh8 Rfd5 Rf5 b2+ Kb1 Qe3 Ne2 g1B N2c3 Qe2 Nd1 Bd4 Re1 Bc5 Ned6 Qe6 Nc8 Qe2 Ne7 Qe6 Kc2 b1R Ng8 b3+ Kc3 b2 Ref1 Rd7 Bg2 Rd5 R1f3 Qe2 Re3 Ra1 Re8 b1Q Rc8 Qe6 Bdf1 Qbe4 Bd3 Rba5 Kb2 Qe3 Nc3 Rh1 Nd1 Rb5+ Ka1 Qe1 Re5 Qe3 Bhe4 Qe2 Rf5
B1nB1n1R/Nk1nB3/4n3/b2K4/4pb2/b2PpRR1/Q3Bb2/Nnr1Rq2 b - - 0 1 illegal: No possible last move
NB6/5pbk/rRQbB3/rR1K2B1/1b1p2r1/qBP3b1/2qRR3/1n1N2r1 b - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 cxd4 g5 d3 g6 hxg6 Bb2 g5 Bc1 g4 f3 e5 Ba3 d5 Bb2 d4 Bc1 Be6 f4 Bd5 exd5 e4 Qe2 Nd7 Qd1 Ne5 fxe5 Qc7 Bf4 Qb8 Bc1 Qd8 Kd2 b5 h4 g5 a4 b3 h5 b4 h6 b2 e6 g3 d6 g4 h7 g2 e7 b3 a5 g3 a6 Qa5+ Nc3 b1R a7 b2 Nh3 g1B Ng5 g2 Ne6 Bh2 Ra2 g1B Qf3 Bf2 Bh3 Qa3 Nd1 Nf6 Qg2 Rg8 h8R Bh4 Rh5 Bg7 Rb5 Ra1 c3 b1R Rb6 Rb5 Rf1 Ra5 Rf5 Rb1 Rfb5 Bg5+ Ke1 d2+ Ke2 e3 Kd3 e2 Kc4 Ne4 Kd5 e1B Qf3 Beg3 Qf6 Rc8 a8B Rc6 Qf3 B5h6 Rb2 Bf8 Rc2 Rg4 Nc7+ Kd7 e8R Bhg7 Re6 Kd8 d7 Bb4 Re7 Bgd6 Bb7 Bhg3 Na8 Ra1 Bc8 Rb1 Bf1 Ra1 Bc4 Rb1 Rb8 Rca6 Bb3 Ra1 Rb6 Rb1 Nf2 d1Q Bf4 Nd2 Re2 Ra1 Qe4 Nb1 Rcd2 Qc2 Be5 Ke7 d8B+ Kf8 Nd1 Kg8 Bg5 Kh8 Be6 Kg8 Qg2 Kh7 Bef4 Bdc5 Bb8 Bcd6 Qh1+ Rh4 Qf3 Rg4 Nf2 Be7 Kc6 Bed6 Rd3 Nd2 Qd5 Rh1 Nd1 Nb1 Rdd2 Re1 Qc5 Rh1 Kd5 Rg1 Qc6
K3B1NR/R2P3b/7n/r1kn1pN1/Q2n4/2RnB1p1/b2B3r/2rRBb1r b - - 0 1 legal: proof: f4 d5 e4 h5 g4 hxg4 d4 a5 c4 dxc4 b4 axb4 e5 e6 d5 Bd6 exd6 e5 Qd3 e4 Qd4 Qg5 Qd1 Qe5 fxe5 Ra4 Ne2 Ra7 Ng1 Ra8 Ke2 Kd7 Ke3 c5 h4 b5 a4 g5 h5 c3 a5 g3 h6 c2 h7 c4 Kd4 g4 Kc5 c3 Kb6 e3 a6 b3 a7 b2 Nh3 e2 Nd2 b1B Rh2 e1N Ng5 b4 Rh3 g2 Bb5+ Nc6 Nde4 g1R Bd2 c1N Qa4 c2 Rc3 g3 Be3 b3 e6+ Kd8 d7 Ke7 Bd2 b2 Nf6 Kd6 d8B Ned3 e7 Nf4 e8R Nh6 Ng8 Bh3 Kb7 Nd4 Bb6 Ncd3 Rb8 c1R Be8 Rh1 Rd8+ Ke5 d6 Kd5 d7 Ba2 Be1 b1B Bc5 Nb3 Be3 Bf1 Rdc8 Nd4 R8c7 Rc8 a8R f6 Ra7 Ra8 Rc8 Kd6 Rb8 Nd5 Rd8 Rc8 B3d2 Rc5 Ka8 Ra5 Ne7 Rf8 h8B Rf7 Ng8 Rh7 Ra3 Kc5 Rb3 f5 Rc3+ Bc4 Rb8 Ba2 Rab1 Re7 Rd8 Re2 Be5 Reh2 Bef4 Be2 Rdb8 Bh5 Rd8 Bg6 Bfe3 Bh7 Ra1 Rc2 Rd1 Rc1 Rb8 Rc2 Ne7 Rc1 Bg6 N3f4 Bf7 Ne2 Rh8 Nef4 Rd3 Bb5 Be8 Bbc4 Ra3 Bf1 Ng8 Nd3 Rc3+
2B1R3/3K1p2/Pr3q2/n1NRB2N/B1bB4/nRp1pbR1/nr1r4/1Q2k1r1 b - - 0 1 legal: proof: f4 b5 e4 g5 h4 gxh4 b4 a5 d4 axb4 e5 d5 exd6 Ra3 f5 Rf3 d5 Bg7 c3 Bd4 f6 Rxf6 cxd4 Rf2 g4 Kd7 a4 c5 a5 e5 a6 h5 g5 h3 g6 h4 g7 b3 Bf4 e4 Nd2 b4 Be5 e3 Ra3 c4 Qb1 c3 Ne4 h2 Ne2 h3 N2g3 b2 Nh5 b3 Bb5+ Nc6 Ba4 Nf6 g8B Rh6 Bh7 Rd2 Rg1 h1B Rg3 h2 Kf1 Qe7 Bf5+ Qe6 Bg4 Bf3 Ke1 Bb7 Kf1 Be2+ Kg2 Bc4+ Kf3 h1R Kf4 Rg1 Bh3 Bb5 Bf5 Na5 Bh3 B7c6 Bg4 Bc4 Nc5+ Kd8 d7 Ke7 d8R Rg6 Qc1 b1N Rb8 b2 Rab3 Qd6 Bc8 Na3 Kf5 b1R R8b5 Rbb2 Qb1 Qd8 d6+ Ke8 d7+ Ke7 Rb8 Bf3 d5 Qb6 Bd4 Kd6 d8B Ng8 B8f6 Ne7+ Kf4 Nec6 Kf5 Nb4 Bg7 Na2 Bh8 Kc7 Ke5 Qc6 R8b5 Qb6 d6+ Kc6 d7 Re6+ Kf5 Kd5 Bhe5 Qd8 Kf4 Rb6 Kf5 Qe7 d8R+ Qd6 Re8 Qd8 Re6 Qd6 Kf6 Qc6 Nd3+ Ke4 Rd5 Qd6 Kg7 Qd8 Re8 Qf6+ Kf8 Bg2 Rg4+ Kf3 Nc5 Kf2 Rg8 Bf3 Rg3 Qg7+ Ke7 Qf6+ Kd7 Ke2 Qh7 Ke1 Qb1+
3N4/1pr1pP2/2q1BN2/3bNRqn/BbR2r2/p1rbq1QK/2k1N1R1/4R3 b - - 0 1 illegal: No proof kernel
1r1N1qB1/Qr4p1/2BRbpr1/1r6/3b2p1/3q1RRB/PB2R3/K1k1nN1r b - - 0 1 legal: proof: b4 b5 e4 d5 c4 Nc6 Na3 Rb8 Bb2 Na5 Be5 Ra8 Bf4 Nc6 e5 Nb8 Rb1 Be6 Rb3 Bf5 Re3 Bc8 Re4 dxe4 g4 a5 f3 h5 Be3 hxg4 f4 e6 f5 Nc6 fxe6 Nd4 Be2 axb4 Bf1 b3 Bg2 b4 Bf1 Nb5 cxb5 Ba6 Ba7 Bb7 Be3 Bc8 h4 Ke7 d4 c5 Kd2 b2 Kc2 b1R d5 f6 b6 c4 b7 c3 b8R Rh6 d6+ Ke8 d7+ Ke7 h5 Bb7 Rh2 Ra5 Bd2 e3 Nc4 e2 Nf3 e1R Ng5 Bg2 Ne3 Rb5 Nf7 Rg6 h6 Bd5 h7 Nh6 h8R Nf5 Re2 Nh4 Bh3 Rh1 Qg1 Ng2 Nf1 Rb3 Qa7 Ne1+ Kc1 c2 Bc3 Rb2 Rb6 b3 Rd6 Qa8 Nd8 Rb1+ Kd2 c1R Rh5 b2 Rf5 Bc4 Rd3 Bd5 Rg3 Qb8 Rff3 Bb3 Ba5 Rc8 Bc3 Qa8 Nf7 Rcb8 d8R+ R8b7 Rdd3 Rc1 Rd6 b1Q Nd8 Qb8 Ba1 Rc8 Bc3 Qd3+ Kc1 Qa8 Kb2 Rb8 Qa4 Ke8 e7 Be6+ Qb4 Qa3+ Ka1 Qa8 Qd4 Qa3 Nc6 Kf7 Qa7 Qb4 Na5 Qa3 e8B+ Ke7 Bc6 Kf7 Rd8 Bc5 Rd6 Bd4 Bd5 Qc5 Bc4 Qc8 Nc6 Qf8 Bb3 Rg5 Bc4 Kg6 Nd8 Kh6 Bd5 Rg6 Bb3 Kg5 Bc4 Bd7 e6 Bc8 e7 Be6 Rfe3 Kf5 e8B Kf4 Ref3+ Kg5 Reg2 Bc8 Re3 Kf4 Bg8 Be6 Rb2 Qf5 Ref3+ Ke4 Ne3 Kd3 Bc6 Qe4 Nf1+ Qe3 Rb1 Kc2 Rb2+ Kc1 Re2 Qd3 Bb2+
qB5B/3K1pR1/1rN1N1pN/P2pqRq1/2N1BBbk/6r1/1Q6/2nqb2q b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 g4 b5 d4 c5 Kd2 cxd4 Ke1 h5 gxh5 Nc6 Qc2 Na7 Qd2 axb4 Qd1 b3 Bg2 b4 Bf1 Nb5 cxb5 Qe7 Kf2 Qf6 Ke1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 d5 a4 g6 h4+ Kg4 e4+ f3 b6 d3 b7 d2 b8N b2 a5 b3 h6 Ne7 h7 Bd7 Kd6 Bh6 e5 Kg3 h5 f2 e6 Qf8 Bg2 f1Q Qe2 d1Q Nc6 Qf5 Nd2 b1Q Ngf3 b2 Nh4 Qe8 Be4 Qg4 Nc4 Bg7 h6 Qg5 Qf2+ Kg4 Nf5 Rb8 Bf4 Rb6 Ra3 Qg8 Rf3 Qa8 Qd4 Rhb8 h8B Qa1 h7 b1Q Qb2 Bc3 Bhe5 Be1 h8B Rb3 Rf2 R8b6 Rh7 Rg3 Nh6+ Kh4 Rg7 Nf5+ Kc7 Qbc1 e7 Nd4 e8N Bg4 Kd6 Qc3 Nc7 Nb3 Ne6 Nc1 Kd7 Qcf3 Bb8 Qh1 Qb1 Qae5 Qb2 Qed4 Bfe5 Qde3 Rf5 Qed4 Bf4 Qc3 Ke8 Qe5 Kd7
1bq1kN2/4b1R1/4B1RN/pqRrqbp1/2n2B2/Q1p1P3/2qR1B1B/1n4K1 b - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 dxc4 h5 Ra6 g3 e5 Qc2 exf4 Qd1 Rg6 hxg6 fxg3 d4 c5 b4 f5 d5 h5 b6 c3 b7 c4 d6 g2 Kf2 f4 g7 c2 b5 f3 d7+ Kf7 b6 h4 Qd3 h3 Na3 h2 Bf4 c1Q e3 Qb2+ Nc2 Qc7 d8R Qbe5 Nd4 Nc6 b8B Nf6 g8R Be7 b7 Bf5 Ne6 Nd5 Rg6 Nc3 Nf8 Qc8 Rc1 Nb1 Qa3 Rh4 Rd2 Ke8 Bg3 Rd4 Nh3 Rd5 Be2 g1B+ Kf1 f2 Bg4 Qe4 Bbf4 Qc2 b8B Ne5 Bh4 Be4 Be6 Bf5 Kg2 f1Q+ Kg3 Qc3 Nf2 Qc2 Ng4 Qfd3 Kg2 c3 Rd1 Qb5 Bf2 Nc4 Nh6 Rd6 Rd5 Rd7 R1d2 Rd8 Rc5 Rd5 B2g3 Bf2 Rf1 Be1 Bf2 h1Q+ Kg3 Qf3+ Kh2 Qfe4 Kg1 Qe5 Bh2 Qd4 Bbf4 Qde4 Bh4 Bg3 Rfd1 Re5 Rd7 Rd5 Rd2 Qd4 Bb8 Bgd6 Bf2 Qe5 Bf4 Bd8 Rdg7 B8e7 Ba7 Bc7 Bb6 Bb8 Bc7 Qd4 Bh2 Qde4 Bcg3 Qe5 Bf4
8/2Nb4/q1k1qp1K/1nPR2pR/r1pBb1BB/N4r2/1rR4Q/Br1R3q b - - 0 1 legal: proof: g4 a5 b4 axb4 f4 e5 g5 exf4 c3 b3 g6 hxg6 Bg2 g5 Bf1 g4 Ba3 b5 Bh3 c5 Bc1 b4 Bg2 b2 Bf1 b3 d3 c4 d4 Bc5 dxc5 Nc6 Be3 Ra5 Bc1 Nb4 cxb4 Ra8 Kd2 d5 a4 Kd7 e4 g3 h4 f3 Ke3 g6 Kf4 g2 h5 d4 a5 f2 e5 d3 h6 d2 b5 Rb8 e6+ Kc7 e7 Qd6+ Kg5 Bh3 e8R Qd5+ Re5 Nf6 a6 Qd7 a7 Ng4 a8R Qd3 b6+ Kc6 b7 Qd6 h7 Ne3 Qh5 d1Q Na3 b1R Rd5 b2 Be2 f1R Kh6 Qe1 Nf3 g1Q Ng5 Bd7 Ne6 g5 Qh2 Nd1 Bg4 Nc3 Be3 Nb5 Bd4 Rf3 Ra2 Rhd8 h8B Rg8 Bhe5 f6 Nc7 Rge8 Bg3 Qee6 Bh4 Qg2 Rd1 Qh1 Ra7 Ra8 b8B Rg8 Rb7 Ra4 Ba7 Ra8 Bb8 R8a6 Ra7 Rb6 Ra8 Rc1 Ra7 b1B Rb7 Be4 Rc2 Na7 Ba1 Rb2 Rb3 Nb5 Rbc3 Rf5 Rh3 Rcb1 Na8 Qde7 Be5 Rf3 Bd4 Qe8 Nc7 Qc8 Bhf2 Qa8 Rh5 Qa6 Bh4
3B4/1Bnp1B2/pn1pn1P1/rqNn1K1R/2b4R/4k1N1/qr1Rr2R/1B1Q4 b - - 0 1 legal: proof: d4 g5 g4 b5 d5 e6 d6 cxd6 f4 b4 f5 exf5 a3 Be7 axb4 fxg4 b5 g3 h3 g4 h4 Bg5 hxg5 Kf8 Nc3 Ke7 Nb1 Ke8 Kd2 Ke7 Ke3 Ke6 Kf4 h5 e4 f5 b4 g2 c4 h4 c5 h3 b6 h2 c6 g3 b5 Na6 e5 Ne7 c7 Re8 g6 Nd5+ Kf3 f4 Kg4 f3 b7 f2 b8R Nb6 Nd2 Kd5 e6 Kd4 e7 Ke3 Ne2 g1Q Ra5 g2 Kf5 Bb7 c8B Bd5 Rb7 Nc7 Ng3 Bc4 Bd3 Qf1 Bb1 g1N Ra2 Ne2 Nb3+ Kf3 Rd2 Ke3 Rb8 Nf4 Nc5 Nfe6 Bb7 a6 Rc8 Rb8 Bb2 Qg2 Bf6 f1N Bh4 Rh8 e8B Rh5+ Kg4 Qf6 Bf7 Qb2 Rh8 Qa2 Rh6 Qd5 Bd8 Re5 Rh4 Qd3 Rg1 h1R Rgg2 Rh2 Rgf2 Qdb3 Rf5 Re2 Rfh5 Nbd5 b6 Qb5 Bc6 Rf5 b7 Nb6 Bg2 Rc8 b8R Re5 Ra8 Rb8 Bf3 Qc6 Rh2 Rf5 Rh8 Na4 Be7 Rb2 Nd3 Nb6 R8h4 Kd4 Rah8 Ra5 R8h5 Qb5 Bb7 Ne3+ Kf3+ Nf4 Bd8 Ned5 Kg4 Nfe6 Nc5+ Ke3 Kf5
N3Kn1B/2B3r1/r2bRprp/1kB3NQ/2R1Rn2/3n2rn/p1P1B1r1/3R4 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 g6 bxa4 h3 f6 Bd2 Ke7 Bc1 Bb7 Qd2 Bf3 Kd1 Bg4 Ke1 Qe8 Qd1 Qf7 gxf7 g5 Be3 Be6 Bc1 g4 Bg2 g3 Bf1 Bg4 hxg4 Bh6 Bd2 Bg7 Bc1 Bf8 Kd2 Kd6 Kd3 Kc5 Ke4 a5 Kf5 d5 Ke6 h6 b4+ Kb5 e4+ d3 g5 g2 e5 a3 g6 f3 g7 a2 Qe2 a4 Rh2 a3 Nd2 f2 Nc4 d2 Qh5 d1R Be3 d4 Rh4 d3 Bc5 d2 Be2 f1R Nh3 g1N Ng5 Rh7 Re4 Ne7 g8R Rf3 Nb6+ Rd3 Rc1 a1R Rg6 Ra7 Na8 a2 Rg7 Re1 Rd1 Ng6 Rc4 Bd6 f8B Nh3 Re7 Rc1 Bg7 Rg3 Kf7 Ra6 e6 Reg1 Ke8 R1g2 Bh8 Ra1 Bf2 Nd7 Bc5 Ka4 b5+ Ka5 b6 Kb5 b7 Ndf8 b8B Ngf4 Rf7 Rg7 e7 Rc1 Bc7 Rg6 Rf1 d1N Rg7 Nb2 Rd1 Rb1 Rd3 Rbg1 Rd1 Rd3 Rh7 Rg8 Kf7 Re3 e8R Nbd3 Ne6 R2g6 Ng5 Rf3 Ree4 Rfg3 Ke8 R1g2 Rhe7 R8g7 R7e6
1qn5/bB2Bp2/1PBrN2Q/R2b1p1R/B4b1b/K3kpN1/1Np4n/N3b3 b - - 0 1 illegal: No proof kernel
1q1bR3/B1pp2bR/1r5R/6P1/3p1N1p/1B1qnq2/1RN1b1QK/b1B1kB2 b - - 0 1 legal: proof: d4 a5 c4 e5 b4 exd4 g4 axb4 g5 b5 g6 b3 Bb2 fxg6 Ba3 g5 Bc1 g4 h4 g5 Bh3 b4 Rh2 g3 Bd2 g4 Bf1 Ra5 Bc1 Rg5 hxg5 Nc6 Rh6 Na7 Rh1 Nb5 cxb5 Bc5 Rh6 Bd6 Rh1 Bf8 e4 Kf7 a4 Kg6 f4 h5 b6 h4 f5+ Kh5 f6 g2 Kf2 b2 a5 b3 b7 Nh6 b8B Nf5 a6 Ne3 a7 Be7 a8R Qf8 f7 Bd8 e5 Rh6 e6 Ba6 e7 Be2 e8B g3+ Ke1 Kg4 Na3 b1Q Rh2 b2 Ra2 Qd3 Nh3 Kf3 Qc2 b1Q Ba7 g1B Nf4 g2 Qd2 Rc6 Nc2 Qb8 Ra6 Qfa3 f8R Rb6 Rh8 Kg3 Rh1 Bh2 Bf7 g1B Bb3 Qf8 Rh7 Kf3 Nd5 Be5 Nf4 Bg7 Rh2 Kg3 Ng6 Qf3 Nf4 Rb4 Rah6 Rb6 Rf2 Nd1 Rh2 Be3 Nh3 Bf4 Rf2 Bd6 Nf4 Ba3 Rh2 Ne3 Rf2 Qbb7 Rh2 Bb2 Rb8 Be7 Re8 Bd8 Rf2 Qb8 Rh2 Qfe4 Rf2 Ba1 Rh2 Kg4 Kf2 Qf3+ Kg1 Kg3 Qa5 Bd1 Rd2 Be2 Qd5 Qh5 Kh1 Kf2 Kh2 Qf3 Na3 Ke1 Rb2 Qf2+ Qg2 Qf3 Nc2+
r1n2KN1/1Q1BR2k/1q4b1/1Pbb2Nb/r2qBR2/8/1RB1nnq1/r1b3BR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 Kg7 e4 a5 c5 f3 c6 a4 b6 a3 c7 h3 g5 f4 g6 h4 b5 h2 b7 h3 e5 a2 e6 f2 e7 f3 e8B Rh4 Bb2 Ne7 Ba3 Nbc6 Nc3 Bf5+ Ne4 Nc8 b8R Bc5 Rb1 a1B Bd7 Bb2 Rb7 Bc1 Bg2 f1R Rb2 f2 Qf3 Kg8 g7 Kh7 g8R Bg6 Rf8 Rd1+ Kc2 f1Q Kb3 d3 Rf4 d4 Kc4 d2+ Kd5 d3 Ke6 Re1 Bb4 d1Q Bd2 Rg4 Be3 d2 Bd4 Qa4 Be3 d1B Nf6+ Kh8 Ra7 Qd4 Ng8 Kh7 Qd5 Rh4 Be4 Bh5 Nf3 Qg2 Ne5 Rg4 Nf7 Rh4 Rhf1 h1N Bg1 h2 Rb7 Nf2 Ra7 N8e7 c8B h1B Bb7 Rd1 Bc2 Qb6 Re1 Nc8 Ra1 Qde4+ Kf6 Qb4 Re7 Nd4+ Qc6 Ne2 Ke6 Nd6 Qc7 Rf1 Bbe4 Qd4 Qb7 Rg4 Re8 Re1 Ke7 Rf1 Kf8 Nc8+ Re7 Be3 Ra3 Ra1 Rc3 Bc1 Rh3 Qh2 Bef5 Bd5 Bfe4 Qg2 Rh1 Rg3 Qc7 Rga3 Qb7 R3a4 Ng5+
qn1r1r2/1n2B3/bP1r1R2/brqR4/1RN1Nnk1/6r1/1R1KN2q/3BQ1bN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Ke6 g4 a5 b4 d5 b6 h5 b5 f5 c5 h3 e5 d3 g5 f3 b7 a4 b6 h2 c6 d2+ Kf2 h4 Ke3 f2 g6 h3 c7 d4+ Ke2 d3+ Ke3 a3 g7 f4+ Kf3 Kf5 e6 a2 e7 Ra3 e8N Bb4 Nf6 Rh5 Qe2 d1R Qd2 Qd5+ Ne4 Nf6 g8N Nfd7 Qb2 d2+ Ke2 Rg3 Nc5 f3+ Ke3 Ba5 Qe5+ Kg4 Be2 f1R Nd3 Nc5 Na3 Rf5 Rb1 a1B Rb5 Rf8 Bb2 Rd8 Qe7 Rb1 Bf6 d1R Nc4 Rb2 Rb4 Rdd2 Ra4 Rb5 Bd1 Be5 Ne2 Bec3 Rg1 h1Q Rb4 h2 Rg2 Qf5 Ndb2 R2d6 Nd3 Bd4+ Kd2 f2 Qe5 Qg1 Be7 h1Q Qe6 Qgh2 Nf6+ Kh4 Ne4+ Kg4 Kc1 Nc6 b8R Ba6 c8R Nb7 Ra8 Nb8 Rc6 Bc5 Kd2 Bd4 Qf7 Qc5 Qe8 Bb2 Rg1 Nd7 Bh4 Rb8 Qf8 Rg6 Bb3 Bd4 N4c3 Nd8 Be7 Rc8 Ra7 Nb8 Rd7 Rf6 Re6 Qa8 Ne4 Nb7 Rd5 Rd8 Qh8 Rf5 Rh6 Rf6 Ba4 Rfd6 Re6 Ra1 Rb1 Ra3 Bb3 Rf3 Bc2 Rff8 Qf6 Rc3 Qf7 Ra3 Rb2 Rb3 Bd1 f1N+ Ke1 Ra3 Qf2 Ne3 Rf6 Ng2+ Kd2 Nf4 Qe1 Bg1 Ndf2+ Kf3 Nh1 Kg4 Kc2 Rg3 Kd2
1R2N2q/r1N2QRP/4Kb2/1nB2Nrb/B1R1k2r/qR3qn1/1r1b1r2/Nn6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 d2 h5 g3 e3 f3 b6 a4 b7 f2 b5 g4 h6 a3 b6 a2 c5 g2 c6 g3 c7 Nc6 b8N Ra7 b7 Nge7+ Kd6 Nd4 Be2 f1Q Ba3 Nb5+ Kc5 d5 Bf3 d4 Qc1 d1R Ne2 g1R Qc3 d3 Nd2 g2 Bc6 Bg7 Rc1 a1Q Bf3 Bf6 Nb3 d2 Bc6 Qf3 Na6 Nd5 b8R Rdf1 Rd1 Ke4 Rb1 d1R Ned4 Rf2 Qc4 Bg4 c8R Rdd2 Nc7 Bh5 Rb2 Qa2 Na1 Qb3 Bb4 Qa3 Rb3 Rb2 Qf1 Rh7 Nf5 Qh8 Be8 Ndc3 Rh3 Qa4 Rg3 Nb1 Rg7 Qa3 Kc6 Rh1 Kd7 g1B Bc5 Rh4 Rb6 Bh2 Rbb8 Bf4 Qc4+ Ke5 e4 Bd2 Qe6+ Kf4 e5 Ke4 Qe7 Rg4 e6 Rh4 Rg8 Rg7 h7 Rg5 Rg7 Bd4 Ne3 f5 Qf7 f4 e7 Bf6 Ke6 Rf1 Ncd5 Nd4+ Kd6 Qg2 Rd8 f3 Ba4 f2 e8N Qf3 Nf5 Nb5+ Ke6 Rc1 Qc7 f1N Qf7 Ng3 Ndc7 Rf1 Rdd3 Rf2 Rdc3 Rh3 Rc1 Rh4 Rc4+
2K4Q/2n2rBn/1N2B2n/k1n1Pn1q/Rq3nb1/br2Nr2/1N1R1B2/qN3B2 b - - 0 1 illegal: No possible last move
K4brN/b1Rb1B2/1qBBrqrQ/4n2b/N3N1kn/2P3rR/1r6/N2b3B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kf3 Kf5 b4 h5 g3 a5 b6 a4 b7 a3 b5 a2 e3 h3 b6 d3 Ne2 d4 Ba3 h4 Qd2 h2 Nec3 h3 Bd6 Ra6 Na3 Nc6 b8N Bd7 b7 Nh6 Bg2 Qb6 Ne4 Rg8 Rac1 a1B g4+ Kg6 g5 Kh5 g6 f5 g7 Ne5+ Kf2 f3 Nc6 f4 b8N Nf5 Ne7 Kg4 Ng6 Nh4 Nh8 Bb2 Nb1 Ba3 Nc6 Bc5 Nbc3 Ra2 Nb4 Rb2 Rhd1 h1R Na4 Rg1 Bh1 h2 c3 Qa6 Nc2 Rg3 Na1 Ba7 Rg1 Qb6 Rcf1 Kf5 Re1 Rg6 Rg3 Re6 Rh3 Kg4 Re2 Rg6 Qc1 d2 Re1 d1B+ Re2 Rb1 Rb2 d3 Rb5 d2 Rc5 Be2 Rc7 d1B Qd2 Be7 Qc1 Rb2 Qd2 Ra8 g8B Bf8 Bf7 Re8 Nec5 Ree6 e4 Nc4 e5 Rg8 Bg2 h1R Qc1 Re1 Bh1 Reg6 e6 Ne5 e7 Rg1 e8B Rg3 Bd5 Re6 Bc6 Reg6 Bf7 Re6 Ke1 Rgg6 Ne4 Rg8 Qc2 f2+ Kd2 f1Q Ba8 f3 Bc6 Rb3 Qd3 f2 Qe3 Bf3 Qh6 Qfa6 Bg6 f1R Bf7 Nc4+ Kd3 Rb2 Bc5 Bfe2+ Kd4 Rff6 Kd5 Rfg6 Bd6 Ne5 Bb5 Re8 Qh7 Qf2 Be7 Kf4 Bd6 Bh5 Qg7 Kg4 Qh6 Bc8 Bd7+ Ree6 Bb5 Qf6 Bbe8 Nc4 Bb5 Qa5 Kc6 Bd7+ Kb7 Ne5 Ka8 Qb6 Bc6
2r1b1K1/Q1n1N3/b5b1/1Nq1rBP1/nN3bn1/1RN5/B1Rk1b1B/qB3r1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 a4 b5 f3 c3 f2 b7 f4 b6 a3 Bd2 f3 Be1 d4 Ne2 d2 Qa4+ Kd3 c4 d1B c5 h3 c6 a2 c7 h4 Bc3 h2 Qc6 h3 Qd5 Ba4 Qc6 Nf6 Na3 Bc5 Nb5 Qf8 Rc1 a1B Qd7 Ra5 Ke6 Ng4 e5 Na6 b8N Bb7 c8B Be4 b7 Bg6 Rg1 h1Q Nc6 h2 b8N Rg8 Bg2 f1B Qa7 f2 Bd5 Rh8 Bb2 Kd2 Ne7 d3 Nec3 Bd4 Nbc6 Nc7+ Kd7 Be2 e6 f1R Ba2 Bf2 Nb4 Qa8 Rg3 h1R Ned5 Qc5 e7 Rg8 e8B Rf8 Ne7 Rg8 Ba6 Rf8 Bef7 Rc8 Ba3 Bb2 Bfe6 Ba1 Bf5 Bb2 Nd1 Be5 Nc3 Bf4 Bb7 Ra6 Bbd5 Re6 Bb1 Re5 Bb2 Bf3 Bda2 Bb7 Ne2 Ba6 Bd4 Be1 Bg1 Bf2 Bh2 Qe4 Nc3 Qed4+ Ncd5 Qa1 Rh3 Ke2 Rf3 d2 Rb3 d1N Nc3+ Kd2 Qb7 Ne8 Qa7 Rd5+ Ke6 Nb2 Nd6 Bc6 Ndb5 Na4 Nd6 Bh7 Kf7 Nc7 Ndb5 Re5 Kg7 Be8 Kh8 Bhg6 Kg7 Qb2 Kg8 Qa1 Rc2+
N2n1Bn1/2Nb1r2/2b1n3/1N1NRPq1/1kB4q/1r2B1rB/1n1R1KQ1/r1b4r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 g4 Ke7 c5 d5 b6 d3 b7 d4 c6 Kd6 f5 h3 b5 Kc5 g5 h2 g6 h4 b6 h3 c7 e3 g7 d2+ Ke2 a4 Nc3 a3 Qe1 d1N Bg2 a2 Kf3 e2 Nd5 e4+ Kg3 e3 Qf1 e1Q+ Kf3 e2 Bd2 d3 Ba5 d2 Ne7 Nb2 Rd1 Nc6 b8B a1R b7 Qh4 Bb6+ Kb4 Be3 Bd7 c8N R8a3 Nb6 Rh7 Na8 e1N+ Ke2 Nc2 Nf3 Rd3 Nd4 Rb3 Nb5 Raa3 Bg3 N2d4+ Kf2 Ne6 b8N Qg5 Rg1 h1R Bgf4 h2 Bh3 Ra1 Qg2 Raa3 Rde1 d1R Be5 Rda1 Na6+ Kc4 N6c7 Kb4 Re2 Qh4+ Bg3 Qg5 Rd1 Qh4 Nc8 Qdg5 Rdd2 Ncd8 Re1 Bd6 Ne7 Bf4 Ree2 Nf6 g8B Rg7 Bf7 Ng8 Bh5 Ra7 Bf3 Rf7 Bd5 R7a3 Bc4 Rhd1 Bd4 h1B Bg7 Re1 Re5 Red1 Bf8 Re1 Qg1 Bhc6 Qh2 Rh1 Qg2 Qh7 Bh2 Rg3 Bg1 Rab3 Rd1 Bc1 Rd2 Qf6 Ke2 Qhh8 Be3 Qhh4 Kf2 Qfg5 Ned5+
q2BNb2/1n1q4/N2R2Kn/2QPrN2/R1B2bn1/Bb4B1/1bk3nn/3rN2q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 h5 g5 c5 b6 a5 b3 f5+ Ke5 c3 e4 a4 g6 c2 b7 h3 g7 f3 Bh6 c1B Ba6 f2 Ra2 f1N Ra1 f4 Ra2 a3 Nf3 h2 Ng5 c4 Nh7 f3 Ng5 c3 Bc4 c2 Nd2 Kc3 b4 f2 b5 h4 b6 h3 Qh5 Na6 b8B Qd7 b7 Bb2 Ngf3 c1B Bg5 Kc2 Nb3 Ne3 Bd8 f1N Nc5 Ng2 Bd6 Nh6 Kf6 Bf4 g8N Ra7 Rg1 h1N b8B h2 e5 Nf2 e6 h1Q e7 Nh2 e8N Nfg4+ Kg6 Rb7 Raa1 a2 Rgd1 Rb5 Ne7 Bb7 Rd3 Bd5 Nf5 Rh7 Rdd1 Re7 Rd3 Re1 B6e7 Rd1 Bbd6 Nc7 Na6 Ne6 Bh4 Ra5 Ba3 Nc5 Bg3 Nb7 Qg5 Bg8 Qe7 Re5 Qc5 Rf1 Rb3 Rd1 Rb6 Be6 Rd6 Bd5 Rb1 a1Q Ne1+ Kd2 Rc1 Qa2 Ra1 Bg8 Bd3 Bb3 Bc4 Kc3 d5 Kd2 Nd3 Kc2 Ne1+ Kc3 Nac7 Bbc1 Bb4+ Kb2 Nb5 Qa5 Nbc7 Qa8 Ra4 Kb1 Ba3 Bb2 Na6 Kc1 Nd3+ Kc2 Ne1+
b1R2N1n/1B2q1qP/1Nb2r1B/r1rQ1Rr1/b3Bn1b/4BN2/K4N2/3bq1k1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kf6 c4 Ke5 Kc2 g5 Kb3 d5 h4 f5 c5 a5 h5 g3 h6 d3 c6 Kd4 e5 d2 e6 Ke3 c7 Kf2 h7 g4 e7 a4+ Ka3 d4 b4 g2 e8B g3 b6 f3 b7 d3 Rh5 f4 Bd7 Nf6 Ra5 Nc6 b8B Ne5 Ka2 a3 b5 Qe7 b6 Bb7 c8N Nh5 Ra7 Nf7 Ba4 Bc6 Rb7 Ra5 Kb3 a2 Ne2 g1R Bb5 g2 Qc2 d1B Rc7 d2 b7 Rg8 Kb2 Rg5 Qe4 Rc5 Nd4 Nh8 Ba6 Bda4 Nc3 d1B Bfd3 Bh6 Ba7 Bg5 b8N Bh4 Rb1 Rf1 Qe6 g1R Nb6 Rgg5 Be4 Kg1 N8d7 f2 Qd5 f3 Nf8 Nf4 Rc8 Ba8 Ka3 B8c6 Rb5 a1Q+ Na2 Ba8 Bb7 Qc3+ Nb3 Qcg7 Nd2 Re1 Nb4 f1Q Nd3 f2 Ka2 Re2 Ba6 Qe1 Bb7 f1B Nf2 Bg2 Bc6 Re3 Bb7 Rc6 Rc5 Rf6 Rb5 Rc3 Nf3+ Kf1 Be3 Rc5 Bb8 Bh3 Be5 Bd7 Bb2 Bc6 Bbc1 Rc3 Qb3 Rc4 Rf5 Rcc5 Qd5 Nh3 Kb2 Rg3 Bh6 Rg5 Ka1 Nf4 Ka2 Kg2 Be3 Kf1 Ne5 Kg1 Nf3+
3R2r1/nP2R1bb/nB1Q4/b2Bq2n/N3B3/nk3KR1/r1bq2BN/b5rR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 Kb4 b3 a5 b6 f5 e5 d5 c5 g5 c6 g3+ Ke2 f3+ Ke1 g2 Kf2 g4 b7 d3 e6 g3+ Ke3 f2 h5 d4+ Kf3 a4 h6 a3 h7 a2 e7 d2 e8B f4 c7 d3 Ne2 g1B Rh4 g2 Qc2 d1Q Qb2 d2 Rh3 Na6 Ba4 Ne7 Be8 Bg7 Nc3 Qe1 Na4 d1B Bc6 Qdd2 Qf6 Bc2 Rg3 B8f5 c8B Rg8 h8R Bh7 Bf5 Nc8 Bfe4 Na7 Nd4 Bh2 Qe5 g1R Bg2 f1N Qc7 Ne3 b8R+ Nb5 Bb2 Nc4 Re8 Na7 Re7 Na3 Rd1 a1B Bc1 Qc3+ Be3 Qed2 Qd6+ Qc5 Nb6 Kc3 b4 Qe5 b5 Kb2 Na4+ Ka2 Kg4 f3 b6 f2 b7 f1N Nf3 Kb3 Re1 Rge8 Bb6 Rg8 Rh3 Bf4 Nh2+ Ng3 Kf3 Nh5 Rg3 Be3 Rd7 Bed4 Rd8 Bdc3 Re2 Rd1 Re1 Ba5 Rh1 Re1 Rd7 Rg1 Re7 Rgb8 Rd8 Rc8 Rdd7 Rg8 Rd8 Nc8 Re6 Nc4 Bf5 B5c3 Qc5 Nc7 Nb2 Ra2 Na4 Na6 Qd6 Ba5 Bfe4 Na7 Re7 Na3 Bcd5+
R1bK1n2/3N2Bq/R1QnRNnb/P2R3b/q1Nq2N1/5qr1/4b3/r2krB2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 a4 b5 d4 f5 g5 c5 d6 f3 g6 f2 d7 f4 Ke6 b3 d5 b4 d6 h3 g7 h2 Bb2 f3 Ra2 h4 Ra1 h3 Bf6 b2 Kf7 b3 Bg5 Ne7 g8N Ng6 Be3 Bh6 Ne7 Rg8 Nc3 b1B Bc1 b2 Qd4+ Kb3 e4 Kc2 e5 c4 Nd1 c3 e6 Ba2 Qc4 b1Q Qb5 Qb4 Nc6 Qe8+ Kf6 Qd4+ Ne5 Ra7 e7 Bf7 d8R Nd7+ Kf5 Ra5 Bb2 Ndf8+ Kf6 Kd2 d7 c2 Ne3 c1R Qc6 Re1 Ra2 Rg7 Ng4 Kd1 Ne2 Rg8 Ng3 Rg7 Rg1 h1N Ne4 h2 Nd6 Ng3 Nc4 h1Q Ra3 Nf5 Rg3 Ba6 Ra8 Nd6 d8R Bc8 Ra6 Qd7 e8N Q7a7 Rd7 Qh3 Re7 Qh5 Re6 Rg8 Bg2 f1B Ba1 Be2 Bf1 f2 Rgd3+ Bd2 Bb2 Qh7 Ba1 Qdc5 Rd5 Qd4 Bb2 Bh6 Ra2 Rb5 Bc3 Rb1 Bb2 Ra1 Ra3 Qd3 Nd7 Rg7 Be5 Qdd4 Ra2 Nh4 Ke7 Bh5+ Kd8 Nhg6 Nef6 Rg8 Bg2 f1Q Bh3 Qf3 Bf1 Qg3 a5 Qf3 Rb2 Qb7 Rb3 Qb5 Rb4 Qa4 Rb8 Nh4 Rba8 Rg6 Nh2 Rg3 Nhg4 Nhg6 Ne8 Qfb3 Bg7 Qf3 Nef6
k3B2N/1N1q3n/1q1B4/rbN1N3/Brn3rR/nQPK1b2/n2br2b/2R2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 b4 a5 e4 d5 g4 Kd7 e5 Kc7 g5 Kb7 b6 h5 b5 d3 e6 a4 g6 d4 g7 a3 e7 f3 e8B a2 Qe2 h3 Rh2 h4 Qf2 f4 Bd7 Ra5 Be2 Ka8 Nc3 Na6 Qe3 f2 Nd1 f1N+ Ke1 d2+ Kf2 d3 Be6 f3 Bf7 Bb4 Qe4+ Bb7 Bh5 Ne3 Bg4 Nf6 g8B Nc4 Bf7 Na3 Ke3 f2 Nb2 f1B Qf3 d1Q Bd7 d2 Bfe8 Rg8 Nd3 Nh7 Nc5 Rg4 Kd3 Qf6 Qe3 Bf3 Nb7 Qd8 Rh1 h2 Nh3 Bc3 Rb1 a1B Nf4 h3 Ng6 Bb4 Nh8 Be5 Bb2 Bbc3 Rc1 Bf4 Rg1 h1R Ba1 Bb4 Be5 Rh2 Rh1 Rf2 Bb8 h2 Bd6 Bc3 Qe6 Bfe5 Qb3 Nb4+ Ke3 Na2 Kd3 Rb4 Bc6 Bf4 Bcd7 Bce5 c3 Rg2 Bc6 Rg4 Bcd7 Qe1 Bc6 d1N Bcd7 Ne3 Bc6 Bh3 Bf1 Qd7 Nd8+ Qb7 Rc2 Qf2 Rc1 Nec4 Bcd7 Bd2 Bc6 Rg7 Bcd7 Qc6 b7+ Ka7 b8N Ka8 b6 Be6 Na6 Rg4 Rc2 Qc7 Ba4 Bd7 Rc1 Bb5 b7+ Ka7 b8N Qfb6 Qc2 Ka8 Nc5 Qd7 Qb3 Bg3 Nbc6 Be5 Rg1 Bg3 Ne5 h1R Bh3 Bgf4 Ndb7 Rh2 Rh1 Re2 Bf1 Bg3 Rh3 Bh2 Rh4
1Rn3R1/q1q1R3/NQPN3b/nBK3p1/5b1r/2RrB1kN/r4nb1/rr5N b - - 0 1 illegal: No possible last move
r2rn3/2N4b/pRPkBQq1/4R2B/rb3R2/1B1R3r/Nr3q2/nnKb2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 d5 g4 f5 c4 h5 e4 a6 g5 h3 e5 h4 e6 f3 c5 h2 g6 f4 c6 h3 b6 f2 b7 d3 g7 d4 b5 f3 b6 Nf6 g8B Nbd7 b8R Nc5 b7 Qe8 Ra4 Qg6 Ra5 Kd6 e7 Rh4 e8B Bf5 Bg2 f1Q Bb3 f2 Bd7 Ne8 Nf3 Qg1 Bb2 f1N+ Kc1 Nd2 Bc3 Qf2 Rf1 h1R Ng5 h2 Bf3 Rg1 Bc8 h1R Bce6 Rg2 Bh5 R1h3 Qf3 Rf4 Bb4 Rfh4 Nc3 Nb1 Na2 d2+ Kd1 Be4 Qf6 Bf5 Rb5 Re4 Kc2 d1B+ Kc1 d3 Rc8 Rgh2 b8R Rg4 Bc3 Ra4 Bd4 Be4 R8b6 d2+ Kb2 Rg2 Rc7 Bec2 Rf7 Bf5 Re1 Bd3 Re3 Bf5 Rd3 Be4 Bbc4 Nb3 Re5 Na1 Bcd5 Qg7 Bb3 Bh7 Qh6 Qg6 Rf4 Bc2 Qg7 d1R Qf6 Rd2 Kc1 Bd1 Rg4 Rb2 Rh4 Rg4 Be3+ Rgd4 Rf4 Qh2 Bg1 Qf2 Rd2 Kc7 Rd3 Bb4 Ne4 Rd5 Nec3 Rdd8 Nd5+ Kd6 Nc7+
B1Qr4/KBq2R1p/R4bNn/bbknB3/r1r2Nn1/b3NP2/4B3/1b4Nq b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 c4 e5 b4 Ke7 g4 Kd6 g5 d3 Kc3 h3 g6 h2 b6 a4 b7 e3 b5 a3 Kb4 a2 g7 d2 b6 e4 Kb5 e2 Bb2 e1R Nc3 e3 Qg4 d1B Be2 Ra4 Nd5 Nh6 g8B Bc2 Nf4 Na6 b8N Qc7 b7 Nb4 Nc6 Bb1 b8N Rc1 Ne5 Nd5 Nbc6 Be7 Be6 Rd8 Neg6 Bb7 Na5 Bc6+ Ka6 Kc5 Be5 d6 Bf1 e2 f3 e1B Be2 Bf6 Bf7 Bb4 Qc8 Ba3 Be6 Be8 Bd7 Rc2 Bc6 Rc3 Bb7 Bb5+ Ka7 Rc2 Ngh3 Rc3 Rd1 h1N Rd3 Nf2 Ng1 Nfg4 Rd1 Kb4 c5 Rc4 c6 Kc5 Nh8 Nc3 Rd3 d5 Nhg6 d4 Rd2 d3 Rc2 Qf7 c7 d2 Ba8 d1Q Rd2 Qg7 Rd7 Nd5 Rf7 Qc1 Qb8 Qf1 c8B Qg2 Bcb7 Qh1 Rf8 Qe7 Qc8+ Qc7 Rf7 Bc2 Rf1 a1B Rd1 Bc3 Ra1 Bb1 Ra2 Re4 Ra1 Rad4 Nc4 Ba5 Ne3 Ra4 Ra2 Rec4 Rd2 Nb4 Rd6 Nd5 Ra6
1N5n/2N1n3/3R1rkn/nBp1r1B1/2Pn1QbK/2r1BBRb/3R1R2/n4n1q b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Bg2 Bh6 Bh3 fxg4 Bf1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bf5 Ne2 Be6 Ng1 Bc8 f4 Kf7 d4 h5 a4 e5 c4 c5 f5 b5 f6 e3 a5 b3 d5 b4 a6 e4 a7 e2 d6 h4 d7 h3 Qd3 b2 Ra5 g2 Kf2 e1R Kg3 h2 Qa3 e3 Nh3 g1N Be2 b3 Bd3 e2 Qa4 Nc6 Ra6 Nh6 Bd2 Rf8 Bc2 Ne7 Be4 Nf3 Bc2 Nd4 Rf1 h1N+ Kh4 g3 Nc3 b1B Ng1 b2 Nf3 g2 Be3 g1N Qa2 Nh3 Nd5 Ng3 Nc7 Nf4 Rf2 Nf1 Ba4 Bf5 Rd6 b1N Bb5 Kg6 Qd2 Bh3 Rh2 Qe8 d8B Qc6 f7+ Bce6 Qc1 Nbd2 Rf2 Rb8 a8B N2b3 Rh2 Na5 Ne5+ Kf5 g6 Qh1 g7 Nfg6+ Kh5 Bc8 g8R Nh8 Bf3 Rb7 Kh4 Be6 Ba6 Rb3 Bb5 Rc3 Rg3 Bg4 Nc6 Kg6 Bg5 Bh3 Qf4 Bg4 Nb8 Bh3 Rd5 Beg4 Rhg2 Rb1 Rf2 e1N Rd2 Nec2 Rd7 Re8 f8R Na1 Rd5 Re1 Rd6+ Re6 Rf7 Nec6 Bdf6 R8e7 Be5 Rf6 Rf8 Ree6 Rf7 Ne7 Rf8 Ne2 Bd4 Re5 Be3 Nd4 Rfd8 N8f7 Rf2 Nh8 R8d7 Ndc2 Rdd2 Nd4 Rd6
7B/1q5b/rR1k1B1r/4n1Qq/1R3nN1/q1N1brBb/Nrp2P1N/3n1B1K b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 b4 Kd7 d4 c5 g4 a5 g5 e5 g6 h5 g7 h3 b6 h4 b7 a4 d5 a3 b5 a2 d6 c3 b6 c4 Ba3 c2 Bc1 e3 Rh2 e4 Qf3 e2 Bg5 c1R+ Kd2 e1N Ke3 c3 Bh6 c2 Rg2 h2 Bc4 h1Q Qd1 h3 Kf4 h2 Kg3 e3 Ba6 e2 Nc3 Nc6 b8B Qe8 b7 Nge7 g8N Nd3 Nf3 e1R Rb1 a1Q Rb4 Re3 Qg1 Nb2 Bg7 Rb1 Nh6 Qh5 Ng4 Qa3 Bf1 Rh6 Bh8 Ne5 Rb5 Kc6 d7 Nd5 d8B Bc5 Bdf6 Nf4 Bc7 Kd7 b8N+ Ke6 Nc6 Nd1 Bb8 Rb2 Nb4 Ra6 Nba2 Rd3 Bd6 Be3 Bh4 Qg5 Be7 Qg7 Bef6 Qb7 Rb4 Kd6 Rb5 Nh5+ Kh3 Bf5 Bg3 Bh7 Bf4 Ba7 Ne3 Rd2 Rg4 Rd3 Rh4 Bd4 Qg5 Bb6 Bg3 Ba7 Ng1 Qhf3 Rf4 h1B Kh2 Bg2 Rfb4 Qe2 Nf3 Bh3 Kg1 Nf4 Nh2 Qh5 Neg4 Rf3 Kh1 Be3 Rb6+
1bB1n1qq/qQn1B3/1r3n2/1bNP2k1/N1rbN1p1/K2N4/B1R2rr1/1BR5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Ke7 Kd2 Kf6 Kc2 g5 Kb2 b5 e4 c5 a4 f3 h4 f2 a5 c4 a6 c3+ Kb3 g3 a7 c2 h5 g2 h6 g4 d6 Na6 d5 Rb8 a8B Rb6 h7 Nc7 d7 Ne8 Kb2 b3 Rh5 b4 Bb5 f1R Ra5 Ba6 Nd2 Bd6 Bb7 Bb8 Rh2 Rf2 e5+ Kg5 e6 f5 e7 f4 Bc8 f3 Bc4 Ngf6 Rc5 Bb5 Ne2 g1B Nc3 Rf8 h8N Rg2 Ng6 f2 Rc6 f1Q Na4 Qf2 Nf4 Qh4 Nd3 Qh8 Qf1 Qc7 d8N Qa7 Nb7 Qg8 Ka1 b2+ Ka2 b1N Ba3 c1R Nbc5 Bd4 Kb3 Nc3 Nde4+ Kg6 Qf2 Qh8 Kb2 b3 Bb4 Rf7 Ka3 b2 Ba2 b1Q Qb2 Qa1 Rh1 Qg8 Rd1 Rcc2 Rc1 Rcf2 Rc2 Qh1 Qb3 Qhh8 Qb1 Rh7 Rc7 Rh1 Qb2 Rc1 Rc6 Nc7 e8B+ Kh6 Bg6 Nce8 Bgf5 Kh5 Ne6 Kh4 Be7 Kh5 N6c5 Kh4 Ng3 Kg5 Nge4+ Kh5 Re2 Ba6 Nb7 Bh2 Nb4 Bb8 Nd2 Rb5 Bfb1 Kg5 Nd3 Rc2 Rc4 Rc1 Nbc5 Rb7 Qb6 Nb5+ Kb4 Nbc7 Ka3 Bb5 Nde4+ Kh4 Qc6 Rb6 Qb7 Kh5 Re1 Rcc2 Rc1 Kh6 Rb4 Rc4 Rb2 Kg6 Rbc2 Kh5 Ng3+ Kg5 Nge4+
6b1/NKb1N2q/1Bnr3R/p1N3nR/1PBn1b2/Q1b1q3/1rqR2R1/1kr2N2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 h5 a5 h6 f3 h7 g3+ Ke1 g4 Kd2 f4 Kd3 g2 b7 g3 c5 f2 c6 f3 c7 Nh6 Rh5+ Nf5 Nd2 Qg5 Ra4 Ra6 Be2 f1Q Ra1 f2 Ra2 Be6 c8N Bd6 Rh6 Bg8 Rh4 Bc7 Qc2 Nc6 Qc5 Qe3+ Kc2 d3+ Kc3 Nfd4 Nh3 g1B b8R g2 Rb6 Bh2 Nf4 g1B Na7 Qfh3 Ne6 Bf4 Nf1 d2+ Bd3 d1Q Rh5+ Qf5 Rd2 Qa4 Qb5 Qa2 Nc5 Bgh2 Ng3 f1N Qa4 Qb1 Rg2 Nd2 Nf1 N2f3 Qa3 Ng5 Bd2 Bhg3 Be1 Qa2 Bf2 Qg6 Bg1 Be1+ Rd2 Nd8 Rf6 Rd6 Bf2 Qf5 Rfh6 N8c6 Bg1 Bf7 Bf2 Rc8 h8N Bg8 Bg1 Qh7 Ng6+ Kf6 Ne7+ Ke5 Qc1 Qa4 Qa3 Rf8 Kb2 Qd1 Rg2 Bc3+ Ka2 Rf7 Bc4 Qdd3 Qc1 Qc2+ Ka3 Ne2 Qb2 Kd4 e5 Rg7 e6 Rg6 Nb3+ Ke4 Ka4 d4 Kb5 d3 Ka6 d2 Kb7 d1R Qa3 Ned4 Rd2 Rc1 Nc5+ Kf3 Rd3 Ke2 Rd2+ Ke1 Nec8 Rf6 e7 Rf5 Rg2 Kd1 e8R Rff6 Ne7 Rf8 Rb8 Rc8 Ka8 Rb1 Bf2 Rb2 Kb7 Kc1 Ra8 Re8 Rd8 Kb1 Rd7 Rc8 Rd8 Rf6 Rd5 Rd6 Bg1 Ndf3 Rd3 Nfd4 Rdd2 Re8 Rde2 Qec1 Nb3 Nde6 Bb6 Ned4 Nf5 Re5 Ref2 Re1 Ne7 Qe3 Nc5 Rc1 Rd2
4n2N/K6R/1RpN1Brb/Pb1N3b/1nB1k2r/nq2q2q/R1R1Qr2/3N3q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 e4 Kd6 d4 f5 a4 b5 g4 h5 a5 h3 g5 h2 g6 h4 g7 b3 Qd2 b4 Qe1 c6 Ra2 b2 Bd2 h3 Bc4 b3 Ne2 f3 Ke3 f2 Nf4 f1R Bc3 Qe7 Qe2 Nf6 g8R Ne8 Rg2 Na6 Kd3 Rh4 e5+ Kd7 e6+ Kd6 Rf2 Bh6 Rg2 Qa7 e7 Nb4+ Ke3 Ba6 Rf2 Bb5 Rg2 Kd7 d6 Rg1 Rf2 Rg6 Rg2 Rb8 Rf2 Rb6 d5 Rb7+ Bd4 Rb8 Nc3 b1Q Rc2 b2 Nd1 Qa2 Rg2 b1N Rf2 Rb6 Bf6 Na3 Kd4 Qb1 Kc5 Qb3 Ng2 f4 Nge3 f3 Ra2 Kc8 d7+ Kc7 d8N Kd7 Rg2 f2 d6 f1Q Nf7 Qf3 Nh8 Qg3 Bd3 Ke6 d7 Qf3 d8R Qd7 Nd5+ Qe3+ Bd4 Qc8 Bc4 Kf5 Rd7 Ke4 Rc7 Rb8 Rb7 Qg4 Kb6 Qg3 Rf1 h1B Rf7 h2 Rh7 Qh3 Ka7 Rd8 Rf2 Bf3 Rb6 h1Q Bf6 Bh5 Rg2 Nd6 e8N Rb8 Ng7 Ne8 Nf5 Rd8 Qf1 Rd6 Rgc2 Rg2 Qe2 Rf2 Be7 Rg6 Bg5 Qc3 Bf6 Qb3 Nd6+
2b2R2/r2r1n1N/b7/b3N2r/Rr1p2B1/3P2k1/1RNR1Nnr/K2QqrqB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ba3 exf4 axb5 c5 b6 Nh6 b5 Ng8 Bb4 cxb4 c4 Ke7 e4 Kf6 g4 Ke5 c5 a5 g5 h5 b7 f5 c6 d5 b6 f3 c7 Kf4 e5 b3 g6 h3 e6 f2+ Ke2 d4 Kd3 h4 g7 h2 e7 b2 Kc2 a4 e8N a3 Kb3 h3 Ka2 Nd7 b8N Nc5 b7 Qg5 Be2 f1B Bh5 Kg3 Nf6 f4 Bf7 f3 Nd5 f2 Nd7 Ba6 b8R f1R d3 Nh6 g8B Ne6 Rb3 Rh7 Rb6 Nf4 N5f6 Bb4 Bh5 Ra7 Ne5 Rd7 Nh7 Ng2 Bd5 Ba5 Bg4 Nf7 Rb5 Bcb7 c8R Qe7 Rc2 Bc8 Rd2 Qg5 Nc3 b1R Ngf3 Rb4 Ne1 Qg7 Rg1 h1R Nc2 h2 Rb8 Qg8 Rb1 Qg5 Ka1 a2 Rb2 Qe3 Ra8 Qe1 Be4 Rf5 Bd5 Rh5 Rf1 Rg1 Rf4 h1R Bdf3 Rf1 Ne4+ Kh4 Rf6 Rh2 Nf2 Kg3 Be4 Ng5 Rf8 Nf7 Bef3 Bb5 Bc6 Nf4 Bh1 Qe4 Qe1 Qg2 Bf5 Bb6 Ng5 Ra6 Qc1 Qg1 Nh7 Ng2 Bg4 Ra3 Ra6 Bd8 Rd6 Raa7 Ra6 Bc7 Ra4 Ba5 Rb3 Bba6 Kb2 Nd6 Ka3 Nf7 Rb2 Rc4 Qe1 a1Q+ Kb3 Qc1 Ka2 Rb4 Qe2 Qe1 Qd1 Rac7 Kb1 Ra7 Ka1
3BbQ1n/r1N2bN1/1K1B2Pb/1n1r1B2/1R1kqnN1/2nB2rp/1r1N4/1R4n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 a5 b4 h5 e4 d5+ Kd3 f5 c4 a4 b6 f3 c5 f2 c6 a3 b5 a2 c7 h3 b7 h2 g5 h4 g6 h3 b6 f4 Be2 f1B Nc3 f3 Ba3 f2 Bc1 Qh4 Qa4 Be6 c8N Bf7 Ne7 Ra7 Qc4 Na6 b8B+ Nc7 b7 Nh6 Rb1 a1R Nc8 R1a3 Nd6 Nb5 Qc7 Bg2 Be3 f1N Qd8 Nd2 Bg5 Nf3 Rb4 Be8 Qc8 Nf7 Bd8 Bh6 Bbc7 Rg8 b8N Nh8 Na6 Rg7 Bb8 Rgb7 Nc7 Bf7 Nde8 Qe1 Kc2 d3+ Kb2 d2 Nb1 d1R Ng7 d4 Nd2 Re3 Bd3 Be8 Kb3 Rb6 Ne2 Ng1 Kc4 Rg3 Nf4 Qe3 Kc5 Qf3 Bc2 d3 Nfd5 Qf4 Ne3 Bf3 Nb3 d2 Bb1 Bf7 Bd3 Rbb7 Kc6 Qh4 Kc5 Bg4 Kc6 Bd7+ Kc5 Bde8 Ng4+ Kf4 e5+ Kf3 Nf6 Ke3 e6 Qe4 e7 Rda1 Na8 d1N Bd6 Ndc3 Nc7 Rd1 Qf5 Rd2 Qc8 Rb2 Nd2 Ra5 Qb8 Rba7 Kb6 Rg5 Rb3 Rg3 Ng4+ Kd4 Qc8 Nf3 Rc1 h1N Rb1 Ng1 Qf5 Nf2 Qf3 Bg8 Qf8 Bgf7 Rb4+ Bc4 Be2 Nd3 Bf1 Nf4 Bd3 Bd7 e8B Bc6 Bf7 Be8 Rb3 Bd5 Be6 Bc4 Bf5 Bcf7 Nf6 Na3 Ng4 Rd5 Bc4 Nab5 Be2 Ng2 Bd3 Nf4 Rb4+
1nqr3B/NN2Rb2/2N2Np1/bPbkbbq1/1q5R/2BB1r2/K2bn1Q1/5B2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Ke6 c4 d5 Kc2 a5 Kb3 d3 f4 a4+ Ka3 g6 b4 d4 h5 d2 c5 g3 c6 g2 h6 d3 c7 e3 f5+ Kd5 b6 e5 h7 e2 f6 e1B b7 e4 f7 e3 Nh3 g1Q Qc2 d1B Rh2 e2 Ra2 d2 Nf2 Qgg5 Nd3 Ne7 Nc5 Nec6 Rh4 Nd4 Bb2 Bf5 Bc3 Qc8 Ra1 Be7 Ka2 Rd8 f8N a3 h8B Ra6 Qb2 Rf6 Nh7 Ba4 Qc2 d1Q Qd2 Rf7 Qb2 Bd2 Nf6+ Kc6 Qc2 e1B Qe4+ Kd6 Qg2 Qdg4 Bd3 Be8 Bf1 Nbc6 b8N Ne2 Nb7+ Ke6 Kb3 a2 Na3 Q4f4 Nb5 Bc5 Na7 Qd4 Rb1 a1B b5 Qb4+ Ka2 Rf8 Rb2 Bf7 Rb3 Rd3 Rb2 Rfd8 Rb1 Rf3 Rb2 Ne5 Nbc6 Nd7 Rb1 Nb8 Rd1 Bf4 Rd3 Be5 Re3 Bd2 Ree4 Qd7 c8B Bb2 Nh5 Kd5 Re3 Bc7 Ree4 Ba5 Re7 Qc7 Bd7 Bd3 Bg4 Qc8 Bh3 Bf5 Bg4 B5e6 Bf5 Ba1 Bd3 Bf5 Bcf6 Be5 Bfg7 Bec7 Bc3 Be5 Nf6+
Q1b1R2n/1q2bbq1/P1qr1bk1/1B1BBn1p/R7/4RN2/2bNb2r/RB4K1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 d4 f5 e4 Kf7 g4 c5 a4 b3 e5 c4 d6 b4 a5 h3 a6 b2 d7 c3 g5 b3 e6+ Kg6 e7 c2 d5 h2 d6 f3 Qe2 f4 Nh3 Qc7 d8R Nd7 Qe1 Nh6 Ra2 Ne5 e8B+ Nef7 d7 Be7 Bd2 c1B Ra4 Nf5 Nc3 b1Q Nb5 Bb2 Bd3 Bbf6 Nc3 b2 Ne4 h6 Kf1 f2 Bc3 Qb7 Bb5 Qa1 Be5 b1B Ng1 Bc2 Nf3 Rh7 Rg1 h1Q Ned2 Rb8 Qc1 h5 Qd1 Rh6 Qe1 Qc3 Qe4 Qcc6 Qd5 Qh4 Rg3 Qg4 Kg2 f1B+ Kg1 Be2 Ra1 Kg7 g6 Nh8 Bf7 Bc4 Re8 B4b3 d8R Ba2 Ng5 f3 Bg8 Bc4 Bh7 B4b3 Qe4 Bf7 Rd4 f2+ Kf1 Bce6 Re3 Bc8 Ngf3 Qg5 Rda4 Qg1+ Ke2 f1B+ Ke1 Qg4 Kf2 Be2 Qd5 Qd4 Kg1 Qba7 Bd3 Rb2 Bb5 Qb4 Qd6 Qab7 Qb8 Qbc3 Qa8 Rb4 Rf8 Rh4 Re8 Rh2 Bg8 Bfb3 Bd5 Qd4 Be4 Bf7 Bd5 Qdc3 Ba2 Qd4 Bb1 Qg4+ Bg3 Nh4 Ne4 Bb2 Ned2 Kf6 g7 Nf5 Ne1 Qd4 Bb8 Kg5 Bg3 Rd6 Nef3+ Kg6 Bf4 Bd5 g8B Qg7 Be6 Bbf6 Be5 Bdc4 Bd5 Ba2 Be4 Bf7 Bd5
1N2B3/n3pr1q/1n1bn1NB/K1nk2N1/3bb1rQ/B1n1R3/BRNPr3/5r2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kf7 g4 Ke6 b4 h5 b6 c5 b5 a5 g5 c3 b7 e3 f5+ Kd5 f6 c4 g6 c2 g7 a4 f7 h3 b6 a3 Bd3 h4 Rh2 a2 Na3 e2 Bf5 c3 Rf2 h2 Rf3 h1N Bh7 h3 Nc4 h2 Bb2 c1N Bg6 c2 Be5 Bf5 Nb2 Ng3 Bc3 h1R Na4 Nh5 Nc5 Rh7 Rb1 a1N Ne6 Nf4 Nd4 Nc6 b8B Na2 b7 c1B Nc2 Ra4 Re3 Ne6 Bb2 Nf6 g8B Nb3 Ba3 Na7 Rb2 Nd7 Bf4 Bg7 b8N Bd4 f8N Rf7 Bh6 Nc3 Bh5 Be4 Ng6 Rh2 Nf3 Nb6 Ng5 Qd7 Nh3 Nbc5 Ng5 Rff2 Bf7 Qc7 Be8 Rf7 Bf3 Rh1+ Kf2 Rg1 Qe1 Rg4 Qh1 e1R Qh4 Re2+ Kf1 Rf2+ Ke1 Qe5 Be2 Qh8 Ba6 Qh7 Bab5 Nb1 Kd1 Rc4 Ba4 Re2 Bb3 Rgf4 Ba2 Rf3 Rb5 Bcb2 Rb4 Bbc3 Rb5 Bb4 Kc1 Nc3 Kb2 Nd7 Rb6 Rf1 Rb7 N5a4+ Kb3 Nab6 Rg3 Bd6 Re3 Rc5 Kb4+ Rc4+ Ka5 Ndc5 Bb1 Rb4 Ba2+ Rb3 Rd7 Nd1 Rh3 Na8 Bb1 Rg3 Rb7 Nc3 Rb2 Rg4 Re3 Nb6 Ba2+
QR1NB3/1pnPR3/n2qRRn1/6k1/B1K2N1B/1n5r/B1bb1r2/r2b2rr b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kf6 Kd3 c5 e4 h5 g4 h3 a4 b3 a5 f3 e5+ Kg6 e6 f5 e7 f4 e8B+ Kg5 d6 h4 a6 b2 d5 h2 d7 h3 a7 f2 d6 Ne7 Nd2 b1N Ra6 f3 Qa4 Nc3 Kc4 Nb5 Ne2 Ng6 Nf4 Bh6 Nb3 Nc7 Nd4 Rf8 Be2 f1B Nc6 f2 Ba3 Qe7 d8R Bf5 Rd7 Bc2 Nd8 Qe5 Bd3 Be2 Rf1 h1R Re7 h2 d7 Bed1 Rae6 Nba6 Bb2 Qd6 Be5 Rg8 Be4 Rh8 Bc6 Rg1 Qa5 h1R Ba4 Rc8 a8R Rh7 Re1 f1R Rb8 Rf2 Rf6 Rh8 Nd5 Rh3 Bg3 Rh7 R1e6 Rh8 Kc3 c4 Kd4 c3 Kc4 Bf5 Nf4 c2 Qb6 c1N Qa7 Nb3 Qa8 Bfc2 Bh2 Kh4 g5 Nf8 g6 Kg5 g7 Ng6 g8B Kh4 Nh5 Bd2 Nf4 Kg5 Bg3 Rhh1 Nd5 R8h3 Nf4 Nd5+ Kb5 Rc6 Bgf7 Rb6+ Kc4 Ndc7 Bg8 Rb5 Bgf7 Ra5 Re5+ Kh6 Bc6 Be3 Kc3 Ra1 Ba4 Nc1 Ba2 Bd2+ Kc4 Nb3 R5e6 Kg5 Bh4+
b2q1nR1/BNNN4/N1nq1b1k/2b1b1q1/5R1q/1qQ2r2/p4P2/2KBr1RR b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg7 c4 d5 b4 a5 c5 e5 g5 h5 c6 h3 b6 e3+ Kc2 h4 c7 d3+ Kb2 e2 g6 e1B b5 d4 b7 a4 b6 h2 Qh5 h3 Qg5 d2 Qh4 d1Q Na3 d3 Kb1 d2 Qg5 e4 Qe5+ Nf6 Qh5 e3 Qf5 e2 Nf3 Kh6 g7 Nc6 b8N Nd7 g8R Bb7 c8N Qb3+ Bb2 Bc5 Nh4 Nf8 Rhg1 h1Q Qc2 h2 Nd6 Qg2 Nab5 h1Q Nc7 a3 Qc3 Qgg5 Ng6 Qhh4 Ne5 Ra5 Bh3 Ba8 b7 Ra4 Bf5 Rf4 Bg4 Rf3 Ned7 Rh7 Bh5 Re7 Nba6 Re6 b8R d1Q+ Qc1 Re8 Rb4 Bc3 Nb7 e1B Rf4 Qd6 Bg4 Bh8 Qc3 a2+ Kc1 Bf6 Ba3 Ree3 Bb4 Be5 Ba5 Re4 Bb6 Re2 Ba7 Ree3 Qd3 B1c3 Rb1 B3d4 Qc3 Bf6 Rh1 Bde5 Bh5 Rg3 Bd1 Rgf3 Rb2 Re4 Re2 Ree3 Ree1 Re2 Ref1 Re1 Rfg1
1NN1bqq1/1R2Nn2/K1B1k3/1rrBn3/4q1nQ/2p1b1nP/1q1B2Bq/2N3R1 b - - 0 1 illegal: No possible last move, all moves rejected
1b6/2k1N1n1/b2R1K1R/2N4R/2nB1QrN/1P1pb1r1/4Rr1q/1BNbq1rb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 e4 Kd7 c4 h5 g4 a5 g5 f3 g6 f2 b3 f4 b6 a4 b7 f3 c5 a3 g7 a2 e5 h3 c6+ Kc7 e6 h4 e7 h2 e8R h3 Re5 Qe7 Bg2 f1R Qd2 f2 Qf4 Nh6 g8R Ra4 Qf5 Nd7 b8N Ba6+ Kc2 d3+ Kc3 d2 Be4 d1B Rg5 Nb6 Qf4 Rg8 Nd7 Nf5 Nd2 Ng7 Rh5 Nc4 Ne2 Rg1 Kd4 f1R Nf3 Rf2 Nc5 Qe6 Bb1 Bd6 Bb2 Rg3 Rg1 h1Q Nh4 h2 Nc1 Qg2 Re4 h1B Re2 Qh2 Rge1 Qe8 Re6 Rg1 Reh6 Qe2 Bc3 Qf1 Re2 Qe1 Kd3 d4 Bb2 Rfg2 Ke4 d3 Bd4 Rf2+ Nf3 Ne6 Kf5 R8g3 Kf6 Ng7 Nh4 Rb4 Qf5 Bf4 Qg5 Be3+ Qf4+ Kb6 c7 Ra4 c8N+ Kc6 Qf3+ Kc7 Ne7 Rb4 Rd5 Ra4 Rd6 Rb4 Bc2 Ra4 Rb1 a1B Qf4 Bc3 Rb2 Ba5 Bb1 Bb6 Neg6 Ba7 Ne7 Bb8 Ra2 Rb4 Ra5 Rb5 Ne4 Rbg5 Rad5 R5g4 Nc5 Nb6 Rf5 Nc4 Rfh5
NQ2qNR1/bKnBqn2/R2q2N1/8/3r2Bp/1bN3P1/1q3q1r/2BbkBb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 b4 Ke4 c3 f5 g3 h5 b6 a5 Kb5 d5 c4 f3 c5 f2 b7 d3 e3 d2 c6 f4 c7 f3 Kb6 a4 b5 a3 Qa4+ d4 Bb2 d1Q Qc4 h3 Qc2+ d3 Qc3 d2 Qg7 a2 Ne2 Kd3 e4 h2 e5 Nh6 e6 Na6 b8N Qe7 Nbc3 Nf7 Bg2 f1Q Nc6 f2 Na7 Qfe1 Bc1 f1Q Qe5 Qff2+ Kc6 Bd7+ Kb7 Rd8 c8B Nc7 b6 Ba4 Bf1 Rd4 Nab5 Bb3 Nf4+ Kc2 Ng6 Rh6 Rg1 h1Q+ Rg2 Qe8 e7 Qh2 Bg4 Qee3 Rb1 a1B Qd6 Rh7 Qd8 Qe5 Qb8 Qde1 Rg1 d1B Rh1 Bb2 Ra1 Qd6 Ra8 Qee2 Ra6 Qh4 Rh2 Bh6 Rh3 Be3 Rh1 Ba3 Rh2 Bc5 Rh3 Qed7 e8B Qhe7 Rh2 Qdd8 Bed7 Qde8 Rh1 Qfe1 Rh2 Bg1 Rf2 Rh6 Rf5 Q1f2 Rg5 Na8 Nc7 Rh7 Bb2 Kd2 Bc1+ Ke1 Ne5 Ra4 Rg8 Qb2 Ng6 Be3 Ka7 Rd4 b7 Nb6 Na8 Nd5 Qc8 Nc7 b8N Rf4+ Kb7 Ba7 Nf8 Rh6 Nc6 Rd4 Qb8 h4 Rg5 Re6 Rg8 Re2 Ne5 Qf5 Na4 Rh2 Neg6 Qff2 Nc3
R2nqn1q/NB1bN3/rr3b2/2p3B1/3n1B1R/3n4/qQ1Pk2n/RqR3BK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 Kd4 Kg2 h5 e5 f5 e6 a5 b6 c5 g5 f3+ Kh2 h3 b5 f4 g6 c3 g7 c2 e7 a4 e8R f2 b7 a3 b6 h4 Qe2 a2 Qb5 f3 Qe2 Nh6 g8R Ra6 Re6 Qe8 Rg5 Nd7 b8B Nf7 b7 Be7 Bc7 Bf6 b8B Rh6 Na3 Nd8 Rh5 Nf8 Bd6 Bd7 Bg2 f1Q Re7 f2 Qb5 Qc4 Bb7 Kd3 Bb2 c1N Ne2 f1N+ Kg1 Nb3 Nd4 Nh2 Nc6 Nd4 Bf4 Rb6 Be3 Ke2 Bbf4 Ra6 Rc1 a1Q Rf7 Rb6 Ne7 Qb1 Qb4 Qb3 Nb5 Q3a2 Na7 Bg5 Nac8 Ng4 Bc6 Ra6 Nd5 h2+ Kg2 h3+ Kg3 Qh7 Rcf1 Nb5 Ra1 Be6 Bf6 Qh8 Ra7 Nd4 Bb7 Bd7 Rh4 Rg6 Rhd1 h1Q Ra8 h2 Nde7 Qg1+ Kh3 h1N Na7 Rh6 Qb2 Nh2+ Nf5 Qe1 Kg2 Nf2 Ne7 Nd3 Bg1 Qf1+ Kh1 Rg6 Bg7 Rgb6 Bh6 Bf6 Rdb1 Qd1 Bhg5 Qc2 Rd1 Qcb1 Rc1
4n1q1/b2K1NnR/1P1BN1b1/b4n2/3Q1q1n/Nb1Rn1r1/3p2R1/1R1B1rNk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 Ke4 g4 d5+ Kb3 a5 Ka4 h5 c4 d3 b4 h3 c5 d4 g5 d2 g6 h2 e3 d3 b6 f3 Kb5 f4 b7 f2 g7 a4 c6 a3 c7 h4 Nh3 f3 Nf4 a2 Ne6 h3 Nd4 Nd7 Kc6 Nc5 b8R Nf6 g8N Ne8 b5 Ne6 Na3 Bc5 Rb1 a1B Nh6 Rf8 Rg1 h1N Ndf5 h2 Ne7 Bc3 Ng4 N6g7 Ng8 Ng3 Be2 h1N Nh2 f1N Rg2 f2 Rb7 Ba5 Nf3 Ba7 b6 N3f5 Nh6 Nh4 Ng1 Bf5 c8R Nhg3 Nf7 Bg6 Bb2 Rg8 Be5 N3f5 Bd6 Qg5 Rd8 Qg4 Qc2 d1B Qc3 d2 Kd7 Bb3 Bd1 Rc8 Qa1 Rc1 Qc3 N1g3 Rc7 f1Q Qc5 Qff4 Qe5+ Kd3 e4 Ke3 Qd5 Nf1 e5 Qgg5 e6 Qgg4 e7 Qgg5 Rg4 Kf2 Qd4+ N1e3 Rb7 Ng3 Rc7 Kg2 Rb7 Kh2 Rc7 Ng3f5 Rg2+ Kh1 Rb7 Nc7 e8N Qgg3 Be2 Rf1 Bd1 Nh5 Ng7 Ne8 Ne6 Nhg7 Be5 Rh8 Bc7 Rh5 Bd6 Rg5 Rc8 Rg4 Rc3 Rg5 Rd3 Qgg4 Rf2 Qg2 Re2 Rg3 Rf2 Qd5 Rg2 Nf6+ Kc7 Qb5 Nfg5 Qd5 Nc5 Qg8 Nce6 Ngh5 Kc6 Ne8 Rh7 Nhg7 Nf7 Nf6 Kc7 Nfe8+ Kd7
R7/2p1b1B1/1RRnP2b/rbQ2B1q/N1R1N3/1qBkb1nn/3B3r/1nKb4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Kd7 Kd2 Ke6 g4 Kd5 b4 Ke4 g5 a5 d5 f5 b6 h5 b5 f3 e3 c3+ Kc2 f4 b7 a4 b6 h3 d6 h4 d7 h2 g6 f2 g7 h3 Qg4 a3 Bc4 f1N Bb3 a2 Qh5 f3 Qg5 f2 Be6 Na6 b8B Ng3 b7 f1B Na3 Nh6 g8R Nf7 Kd1 Be7 Ba7 Bb5 b8R Nb4 Nb1 Nc2 Ne2 Na3 Rg6 Qg8 Nd2+ Kd3 e4 Nb1 e5 Rh4 Rg1 h1Q Ne4 h2 Bd2 Rh3 Bd4 c2+ Ke1 Qf3 Rb6 h1N N2c3 Nf2 Bg4 Rh4 Rgc6 Nd6 Bh3 Qh5 d8B Bg4 Qf5 Qb3 e6 Bf8 Qc5 Bh6 B8f6 Be2 Bg4 Rh2 Bg7 Nh3 Bf5 Bg4 B2e3 c1B Rg2 Ra3 Rc2 Bd1 Bf4 Be3 Bdf6 Bd4 Bc1 Bf3 Bd2 Bde3 Be5 Re2+ Kd1 Rh2+ Kc1 Bd1 Nd5 Ra6 Rc4 Nc3 Rb1 a1B Rb2 Nb1 Ra2 Bad4 Ndc3 Beg5 Ra5 Be7 Na4 Bde3 Bc3 Ra8 Raa6 Ra7 Rb8 Ra8 Rab6 Ra5 Ra8
1N1bn3/q1b4R/1B3b1n/RN1nRbk1/Q3BrBp/1r6/r1P3BR/qnK5 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 a4 Kg6 f4 h5 g4 b5 a5 d5 a6 e5 a7 b3 Nf3 b4 Nh2 e3+ Ke2 b2 Ra4 b3 Ra2 e4 Qd2 d3+ Kd1 d4 Qf2 e2+ Kd2 e1B+ Kd1 d2 Ra5 e3 Bg2 h4 Nf3 Qb6 Na3 b1N Rh2 b2 Nb5 Nd7 Qe2 Bg7 Qc4 Bf6 Qa4 Bg3 f5+ Kh7 g6+ Kh6 g7 Bc7 Ne5 Kg5 Be4 Nh6 Nc6 Rf8 g8B Bfd8 Nb8 Nf6 Bf7 Ne8 f6 Bf5 Bh5 Qb7 f7 Qa6 Ke2 d1N Bd2 d3+ Ke1 Rh8 f8R Ndc3 Rf7 Rf8 Rh7 Nd5 Kd1 Bf6 Bb4 d2 Bc5 Bfd8 Bb6 Rf7 Ke2 d1R Bg2 Rd3 Be4 Rb3 Kd1 Kf4 g5 e2+ Ke1 Bf6 g6 Kg5 g7 Rf8 Bg4 Bcd8 Kf2 e1B+ Ke2 Bg3 Kd1 Bgc7 g8B Na3 Be6 b1Q+ Kd2 Qa2 Kc1 Nb1 Bgf3 Qa1 Bg2 Bg6 Bg4 Bf5 Nc6 Rb8 a8R Qa7 Bc5 Rb6 Nb8 Rc6 Bb6 Rc4 Qa3 Ra4 Qb4 Ra2 Qa4 Qb7 R8a7 Qa6 Rb7 Qa7 Re7 Rf7 Re5 Rd7 Nd6 Ndc3 Nc6 Bb8 Nb5 Rd4 Bd5 Rf4 Rh7 Bbc7 Bde4 Nd5 Nb8
NK3NqB/2NB4/3q1rk1/2n2rpb/nP1B1Rq1/2n5/1BN2r2/1Rbn1Qq1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 f5 c4 Kf7 h4 a5 b3 g3 h5 f3 b6 a4 h6 g2 e5 a3 c5 f2 b7 f4 c6 a2 c7 f3 e6+ Kg6 h7 Na6 b8B Qd6 e7 Nf6 e8N Nd7 Be3 Nac5+ Kc2 d3+ Kc3 d4+ Kc4 d2 Kb5 d3 Rh2 Na4 Bd4 Ndc5 Ne2 g1Q Rh4 Ra6 Na3 Bg4 c8N Bh5 Nb6 Qg4 Rb1 a1Q Nc2 Qa2 Bh3 f1Q Na8 f2 Nec7 Qfg1 Qf1 d1N b4 d2 Bb2 Bg7 Ned4 Rf8 h8B Qg8 Nde6 Rf5 Ba7 Rc6 Ka5 Ndc3 Bb6 d1N Nf8+ Kh6 Ba7 Be5 Bb6 Bf4 Ba7 Bc1 Bb6 Nd3+ Ka6 Ndc5+ Ka7 Qg7 Nd7 Kg6 Kb8 Qg8+ Nf8+ Kh6 Qa6 f1R Qc4 R1f2 Qf1 Qd2 Ba7 Rcf6 Bb6 Qd6 Ba7 Nb3 Bd4 Nbc5 Bg2 Qf3 Rf4 Qg4 Bc6 Qgd5 Nh7 Kg6 Bd7 Qg8+ Nf8+
3qR1Rb/n3Qbqn/n1N1B1p1/3bn1N1/1r2N2q/1B2b2r/KB1B1P2/1N3k2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 b4 Kg6 c4 Kg5 Kc2+ Kh4 Kb3 a5 b6 d5 b7 e5 c5 e3 b5 d3 b6 g3 h3 a4+ Ka2 g2 c6 a3 c7 d4 Nc3 d2 Nd5 e4 Bd3 e2 Kb1 e1Q Ba6 a2+ Kb2 d3 Nb4 e3 Qb3 d1B Qd5 d2 Nd3 e2 Qe6 Bc5 Bc4 Bb3 Qe7+ Nf6 Rb1 Bg4 c8B Be3 Nc5 Be6 Ne4 Na6 b8B Bf7 Be5 Rb8 b7 d1N+ Ka3 a1B Bd2 g6 Bb2 Nc3 B8e6 Qf1 Rh2 e1N Ne2 Nd3 Re1 g1Q Bcd5 Ba2 Bb3 Ne5 Rh1 Qg5 Rh2 Rc8 b8N Nh7 Nc6 Rb8 Rh1 Rb4 Rh2 Na4 N2c3 Nb6 Nb1 Nc8 Re2 Na7 Re1 Kh5 h4 Qh6 Rh3 Qc4 Rf3 Qc3 Rf5+ Kg4 h5 Qg5 h6 Kh3 Rf6+ Kg2 Re2 Bg8 Rf8 Bf7 Rg8 Qh4 Re1 Ng5 Re2 Kf1 h7 Qcd4 Bd1 Bd5 Bb3 Nef3 Ka2 Qg7 Rf8 Ne5 Re8 Rg8 h8N Nh7 Rf8 Be8 Nf7 Rh8 Nfg5 Bf7 Rg8 Nf3 Ka3 Bc5 Bf5 Qgh6 Qc7 Qh1 Nf6 Nf8 Re8 Be3 Bbc1 Rh7 Ng4 Bh8 Be6 Qg7 Nf6 Ne5 Ka2 Rh6 Qe7 Nh7 Bb2 Qe4 Ka1 Rh3 Ka2 Qh4 Nfe4
3BnK2/brqB1R1r/1nR1rp2/1nNP3k/3bq3/2RBN1BQ/3r2Rn/7b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 a5 Kf3 h5 Ke4 c5 Ke5 a4 g4 h3 d4 a3 e4 h4 b4 f3 b6 c3 g5 a2 g6 f2 b7 c4 b5 h2 b6 c2 g7 h3 Bg5 c1R Bf6 c3 Ne2 c2 Qd3 Re1 Nf4 c1N Nd5 Ra7 Nd2 Rh7 Ne3 Ne2 Bh4 Bc5 Nb3 Nc3 Rc1 Nb5 Rc3 Nf6 g8R+ Ke7 Be2 f1N Rg2 a1B d5 Bf5 Rhg1 h1Q Rg7 h2 R1g2 Kf8 R7g6 Ne8 Rc6 Qd7 Bd8 Bg6 Bh4 Kg7 Bd8 Na6 b8B Kh6 b7 Nac7 Bh4 Bb6 Nc5 Na8 Bc7 Qd8 b8R f6+ Ke6 Rb7 e5 Be4 Rc8 Ba7 Ba5 Rd1 R8c7 Rd2 Rf7 Qc7 Bb6 Bf3 Qf5 Bb2 Qh3 Kh5 Ba5 Nb6 Bd3 Nd7 Ke7 Nb6+ Kf8 Ba1 Rc4 Bd4 e6 Be4 e7 Bf3 Rg4 Qg2 Rc3 h1R Rg8 Nh2 Rgg7 Qe2 Rg4 Re1 Rg2 Ng7 e8B Be4 Rg6 Bh1 Bd7 Ne8 Rg2 Qf3 Ng4 Re6 Ne3 Nc4 Bb6 Qe4 Ba5 Qb8 Bc7 Nb6 Bd8 Qc7 Bg3+
bnr1r1B1/8/k1npNKN1/Bnb1r2r/n3N3/B1q3qR/Q4BP1/1R2Nb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 a5 c4 h5 e4 a4 b4 f3 b6 f4 c5 f2 c6 f3 e5 h3 Ke4 h2 Kf5 h4 b7 h3 b5 a3 e6 a2 e7 d3 c7 d2 Be2 f1R b6 f2 Ba6 Re1 Bb5 f1B Ba6 Re5+ Kg6 Rhh5 Qe1 d1N Bh6 Nc3 Qf2 Na4 Bd2 Rh8 Nc3 Rhh5 Rc1 a1Q Ne4 Qc3 Nf3 Rh8 Rg1 h1N Bc4 h2 Ne1 Ng3 Rh1 Ne2 Rb1 Nd4 Bc1 Rhh5 Qa2 Nb5 Ba3 Rh8 Rg1 h1R Bd5 R1h3 Rh1 R3h5 Rh3 d6 Bf7+ Kd7 e8N Kc6 Ng7 Ne7+ Kf6 Qd7 Bb3 Qg4 Bg8 Qgg3 Ne6 Bd7 c8N Bh6 Rb3 Be3 Rb1 Na6 b8B Kb7 Ba7 Nc6 Ne7 Rc8 Ng6 Nab8 Nd3 Bg1 Ne1 Ka6 b7 Bc5 Bb6 Be8 Ba5 Bf7 Nd4 Bd5 Ne6 Ka7 Bh7 Rhe8 Bg8 Na6 b8B+ Kb7 Ba7 Nab8 B5b6 Ka6 Bd8 Ne7 Bdb6 Ba8 Ba5 Nec6 B7b6 Bb4 Bg1 Bc5 Bf2
b5qn/1rb1r1Nb/Pp3kn1/3B2QK/1N1n3R/1b3RB1/4rB1B/R2qn1R1 b - - 0 1 illegal: No possible last move
r2n2rb/PQ6/BpR3R1/N3q1bb/B3bn2/1K6/NB3nr1/RRBk1rq1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Ke7 e4 Kf6 d4 Kg5 Kd2 h5 Kc2 f5 g4 c5 e5 b6 d6 b3+ Kb2 h3 d5 c4 d7 h4 d6 c3+ Ka3 c2 a5 h2 a6 h3 a7 b2 e6 Nc6 e7 Bg7 e8B Qf6 d8B Nge7 d7 Rg8 Qd3 Qe5 Qe2 Bh8 Bc7 Nd5 Bb8 Nd8 Bd2 c1B Nc3 b1B+ Ka4 Be4 Bc7 Kh4 g5 Kg3 g6 f3 g7 f2 Qc4 f4 Nge2+ Kf3 Qc6 Bb7 Rg1 h1R Na2 Rh2 Kb3 Rg2 Bb8 Ba6 Qb7 h2 Bc7 h1N Nd4+ Kg4 Bb8 f3 Nc6 Be2 Na5 Nf4 Bd6 Kg3 Ba3 Kg4 Bb2 Bd1+ Kc4 Kg3 Bd3 f1R Be3 Be2 Kb3 f2 Ba6 Bh5 Bd2 Kf3 Be3 Nde6 d8R Bd2 Rd3 Ke2 Ba4 Nd8 Rb1 Bc1 Rc3+ Kd1 Rc5 Re1 Rc8 f1Q Rc6 Nf2 Rh1 Qg1 Bd2 Re8 g8R Rf1 Rgg6 Rg8 Ra1 Bb1 Bdc3 Bd2 Bc1 Be4 B3b2 N4h3 Rcf6 Bg5 Rc6 Nf4 Nc4 Qh2 Rg7 Ke2 Bd2 Rc1 Rgg6 Rd1 Rf1 Qg1 Be3 Rd7 Rfb1 Rd1 Bd2 Rf1 Bdc1 Kd1 Na5
6n1/1KQ1q2n/Bb4b1/Br3N1R/1P1R4/2BN1Bpb/1nR1nn1R/b1r1n1k1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 c4 g5 e4 f5 b4 a5 e5 f3 h3 Kg3 c5 Kf2 h4 g3 b6 g2 b7 g4 h5 g3 c6 f4 h6 a4 e6 d3 h7 d2 c7 a3 e7 a2 e8R Ra5+ Bb5 Qe7 Qb3 d1N Rh5 Nb2 Ne2 g1N Nd4 Ne2 Rh3 Kg1 Rd8 f2 Qc3 f1N Rh4 f3 Rh3 f2 Bd2 Nh2 Rh5 f1B Na3 Nf3 Nc4 Ne1 Ne5 Bh3 Rc1 a1B Nd3 d6 Qc4 Nd7 Kc6 d5 b8B Ndf6 Nf5 d4 Ba6 Rb5 Rc2 Bh6 Qc5 Be3 Bc3 Be6 c8B Bf7 Bab7 Bg6 Bc7 Bf2 Ba5 Be3 Nf4 d3 Rd4 d2 Nd3 d1N Qd6 Nf2 Qc7 Qf7 Ba6 Qg7 Bcb7 Qe7 Re4 Bb6 Rd4 Nh6 Ba8 Rc8 h8R Nhg8 R8h6 Nh7 Kb7 Bg4 Rh2 Bh3 Rh5 Rf8 Rd8 Ne4 Kb8 Ng2 Nd6 Rf1 Nf5 Rc1 Rd4 Nf2 Bf3 Ne1 Kb7
QK6/1b3Rrn/r2N2Rk/1n1pN1nq/r2NBqR1/2qP3r/2q1qBR1/6N1 b - - 0 1 illegal: No possible last move, all moves rejected
R1qnQ1R1/4pbK1/1B1Nq2r/4n1Nk/2nBBr2/RP4b1/R2p2r1/B1b2q2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kg6 c4 a5 f4 h5 b3 d5 b6 a4 g5 e3 Kf3 e2 b7 e1Q c5 a3 c6 a2 c7 d3 Nd2 h3 Rh2 d4 Bg2 h4 f5+ Kh5 g6 Nd7 b8B Nh6 f6 Nf7 g7 Rg8 Ne2 Ra4 Kf4 Nde5 Be4 Be6 Bd5 Qc8 Nc4 d2 Ba7 d3 Be4 Nd8 Nd6 Bf7 Nc3+ Qe2 Qf1 d1N Bce3 Nb2 Bab6 Nbc4 Bed4 Qe1 Rf2 h2 Qg1 h3 Qg6+ Kh4 Re2 h1Q Rd2 h2 Rc2 Rh8 g8R Rh6 Rb2 Qef1+ Rf2 Qe6 c8R Qhg2 Rb8 h1R Ra8 Rb4 Ra3 Rg1 Ra8 Qgh3 Ra3 Be8 f7 Rg2 Ra8 Bg7 f8B Bf7 Ra3 Bf6 Bg7 Qc8 Ra8 Qhe6 Bh8 Kh3 Bg7 Bh4 Bf6 Bg3+ Kg5 Ra4 Rc2 d2 Rb2 Rh4 Bh8 Rf4 Kh6 Kh4 Kg7 Ra6 Rc2 Be8 Qf7 Kg5 Qf8 Bf7 Qe8 Kg4 Bh7 Kh5 Nce4 Qe2 Ng5 Qf1 Rd1 a1B Be4 Bb2 Ra1 Bc1 Ra3 Ra5 Rca2 Rd5 Bc3 Rd4 Ba1 Rf6 Bb1 Rdf4 Be4 Rh6 Kf8 Nec6 Bhd4 N6e5 Kg7
b4b2/2NKpQBR/3N1b1p/R4N2/r1q1n1P1/1n1B3B/1kr1q2N/2nB2rq b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Ke2 Kf7 a4 Ke6 f4 Kd5 g4 Kc4 g6 d5 f5 b5 a5 d3+ Ke3 h6 Kf4 d4 Ke5 b3 a6 b4 g7 b2 a7 e3 f6 e2 f7 e1B Nd2+ Kc3 Nc4 b1N Ne3 d2 Bd3 b3 Nf3 b2 Rf1 Na6 Ra5 Nf6 g8B Nc5 Nf5 Nb3 Nh2 Bb7 Ke6 Ne4 Qf3 d1Q Bf4 Qb8 Be5 Nc1 Bg7 Bh4 Kd7 Qf4 Rf2 Rc8 a8B Nbd2 Bh7 b1Q Bg6 Kb2 c4 Ba6 c5 Bb7 c6 Bf6 c7 Qe2 Bc2 d3 Bd1 Bd5 Bb7 Ra8 c8N Ndb3 Ncd6 d2 Ba6 Rc8 Bh7 Rc2 Bb5 Qee3 Bf1 Ba8 Bh3 Qe2 Bg8 Bc3 Bf6 Bd5 Ra4 Ng3 Ne3 Bg7 f8N Qfc4 Bh7 Qf1 Be2 d1R Ra1 Na2 Ne6 Ra8 Be4 Bf8 B4d3 Ne4 Nc7 Qh1 Bd4 Rg1 Be5 Qe1 Bd1 Nac1 Ra3 Rb8 Ra5 Rb4 Qf6 Qf1 Qg6 Qe1 Rf7 Ra4 Rh7 Ba8 Bg7 Bf6 Nef5 Qe2 Qf7
1b1NrRb1/1NNBn1R1/1K4n1/1b3P1r/p5p1/1r1QB1q1/Bn1n1Nn1/k3B3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Ke6 f4 d5 h4 a5 b4 g5 b6 g3 b5 e3 Kd3 g4 h5 a4 f5+ Ke5 h6 g2 b7 e2 h7 e1N+ Ke2 d3+ Ke3 d4+ Kf2 d2 b6 d3 Ke3 Nc6 b8N Be6 c5 Qd6 b7 Nf3 Na6 Re8 Nh3 g1R b8B Rg3 Nc3 Bb3 Qe2 d1B Nb5 d2 Qd3 Be2 Nbc7 e6 Rh2 Nge7 Rb1 Ng6 Nf2 Nce7 c6 Rh3 Nc5 Bg7 Qc2 Bb5 Qd3 Bf8 Nb7 d1N+ Ke2 Rh5 Be3 Nb2 Rh3 Rg8 h8N Nd2 Bg2 Bh6 Bd5 Bf4 Bba7 Rb8 Bac5 Rge8 Bb4 Bc2 Ba2 Bb3 Na8 Bg3 c7 Bh2 c8B Bg3 Bd4+ Kd5 Ke3 e5 Ba5 e4 Nf7 Bh2 Bd7 Qg3+ Ke2 e3 Nfd8 B3c4 Bdb6+ Ke5 Nc7 Bg8 Rh1 Rg5 Rh7 Rh5 Ke1 e2 Rg7 Ba6 Be3 Bac4 Nc5 Rb3 Ncb7 Bb5 Bb4 Qg2 Ne4 Qh3 Kf2 e1N Ke2 Qg3 Nf2 Ng2 Rd1 Ne4 Be1 Nd2 Rc1 Rh4 Rc6 Rh5 Rf6 Qf4 Na8 Nbc4 Qc3+ Kd5 Kd3 Qf3 Rff7 Bb8 Rf8 Qg3 Ke2 Nf3 Qc2 Nfd2 Nc7+ Ke5 Bg5 Kd4 Qb1 Kc3 Be3 Rb4 Qe4 Kb2 Kd3 Rb3+ Kd4 Ka1 Kc5 Nb2 Kb6 Rg5 Qd5 Rh5 Qd3
N6b/7B/3Kn1br/b1NBRBb1/1nNpp1rb/B2q1R1P/6n1/N1Qq3k b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 Kf7 Ke3 Kg6 Kd4 Kh5 Ke5 Kh4 f4 b5 c4 g5 a4 d5 f5 g3 h3 g2 a5 Kg3 c6 e3 c7 b3 f6 e2 f7 e1B a6 g4 a7 b2 c5 b4 c6 b3 Bg5 Nd7+ Ke6 Ba5 Be2 Bg7 f8N Nh6 Bf3 Nf5 Ra4 Nh4 Ra3 Rh6+ Bf6 Nc5+ Ke5 Bf5 c8B Bg6 c7 Bh8 Bd7 Ne6 Nc3 b1Q c8B b2 Qc2 Qd1 Be4 b1N Na2+ Nc3 Nf3 g1B Qc1 Kg2 Bc6 g3 Nb4 Bf2 Re1 Na2 Nc2 Nb4 Nd2+ Kh2 Bg7 g2 Nd7 g1B Rf3 Kh1 Na1 Ng2 Nc5 Bh4 Nc4 Qd7 Re2 Be3 Bf5 d4 Bd5 Qb5 Bd7 Rb8 a8N Beg5 Re4 Rg8 Bc8 Bh5 Bh7 Bg6 Bf6 Nef4 Bf5 Ne6 Ne3 Qd3 Nc4 Nd8 Ree3 e6 Kd6 e5 Be7 Ne6 Rg3 e4 Ref3 Be3 Rg5 Rg7 Bg4 Bf4+ Re5 Bfg5 Bf5 Rf7 Bg4 Rf4 Bf5 Rg4 Nb7 Ne1 Kd7 Nbc2 Ba3 Nb4 Kd6 Ng2 Nc5
nN1B4/N5n1/RNq1R2b/1Brq1bb1/1Ppp1rr1/K1Q3R1/4bN2/b1R1k3 b - - 0 1 illegal: No possible last move
1R1BN3/5NK1/1P1p2BR/1bR1rq2/qr1bnn1p/2Nq2k1/1bRbb3/NQ6 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 h5 c4 a5 b4 h3 f5+ Ke5 f6 Kf4 c5 e5 g5 a4 c6 a3 c7 h2 f7 d3 Kc3+ d2 b6 h4 b7 e3 g6 e4 Kd4 a2 g7 e2 b5 e1B b6 e3 Nh3+ Kg3 Ke5 e2 Qa4 d1B Qe4 Rh5+ Ng5 Bf2 Nc3 e1B Bd3 Ra4 Rf1 Nf6 g8N Ba3 f8N h1Q Ne6 Bd2 Nc5 Nd5 Nf6 Nf4 Ne8 Be2 Nb3 Na6 b8R Bb2 Bc2 Bb7 c8R Qh3 Rc5 Bc6 Qb4 Bg1 Bg6 Bcb5 Qe4 Qc8 Kf6 d6 Nf7 Rb4 Kg7 Re5 Qb1 Qcf5 Re1 Qd3 Rf1 Bd4 Rf2 Ng2 Rf6 Nf4 Re6 Qhf5 Rf6 Be1 Be3 Bd2 Re6 Nd5 Bg5 Nf4 Bd8 Ra4 Qf1 Rb4 Rc1 a1Q Rc2 Qa5 Na1 Qa4 Rcc8 Nc5 Qb1 Ne4 Rc5 Qa8 Bh7 Qa6 Rh6 Qa4 Bg6
2q1nRn1/n2B2pN/8/b1k1bp1N/1bR2RPr/1qQ1n3/1B2K2N/2r2NRn b - - 0 1 illegal: No possible last move, all moves rejected
1B4b1/3NP1r1/Kb2N3/nr3bkr/1Q1pp2b/RBb5/2RR1BnB/1R2q2q b - - 0 1 illegal: No proof kernel
3BRNR1/1p1nnbRp/5k1K/7n/1Bq2Rr1/PnQ2r2/5r1b/1q2BNnB b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 f5 e4 c5 g4 b3 d4 b2 e5 h3 a3 h2 d6+ Ke6 d5+ Kf7 d7 c4 e6+ Kf6 e7 c3 e8R c2 d6 Qc7 d8B+ Ne7 d7 Ra4 Qd2 Qc4 Nh3 Rg8 Rg1 h1N Be2 Ng3 Ng5 Nh5 Ne6 Rb4 Qe3 Rb3 Nd2 b1Q Ba5 Rg6 d8B Nd7 Bd1 Rc3 Bb2 c1N Bb4 Ne2 Nf1 Bg7 Nf8 Rg5 Kg2 f3+ Kh3 f2 Kh4 f4 Bc2 f3 Be4 Rg6 Bc1 Bh6 Bd2 Bf4 Be1 Bh2 Ra2 Rg7 Rd2 Rd3 Rg3 Ng1 Rd1 Rb3 Rd4 Rb2 Qc3 Rg6 Nd2 f1N Bc6 f2 Bh1 Ne5 Rg2 Be6 Rg3 Nd7 g5+ Ke5 Rg2 Bf7 Rg3 Rg8 g6 Kf6 g7 Rb3 Qb2 Rf3 Qc3 Ne3 Rg5 Nc2 Nf1 Na1 Rgg4 Rh8 g8R Nb3 Ng3 f1R R4g7 R1f2 Nf1 Qa6 Rg2 Qc4 R8g7 Ke5 Kg5 Rg8 Kh6 Kf6 R7g3 Rg5 Rgg4 Rb5 Rg8 Rg5 Rg3 Rg4 Rg2 Re4 R2g7 Rg4 Rf4#
K5Rb/1BN2Nbq/1qR5/1r4q1/k1NN3r/1Bn2Pn1/BBp1brp1/2Q2q2 b - - 0 1 illegal: No possible last move
qnN5/qN2r3/2q4R/k1Bbr1RQ/3rBb2/1pKNB1n1/p2B1Pn1/3r1N2 b - - 0 1 illegal: No proof kernel
1n5b/1b1r2B1/2kNB3/1RbQ2p1/4pqNP/2R1b1nR/K1R2qN1/1n1r2qN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 a5 f4 d5 h4 Kd7 b4 e5 c4 g5 Kc2 a4 Kb2 d3 f5 e3 c5 e4 f6 d4 b6 d2 f7 d3 c6+ Kd6 c7 g3 b7 a3+ Ka2 g2 b5 e2 b6 e1B Nh3 g1B Nf2 Nf6 Bh3 Nh5 Ng4 Rh7 Nc3 Ng3 Bb2 Qf6 Ne2 Kc6 Rc1+ Bfc5 f8N Qf2 Rc3 Rd7 Ne6 Ra4 N6f4 Rad4 Qb3 d1N Ng2 d2 Rc2 R4d5 Bg7 Qf4 Qd3 Bd4 Qc4 Bef2 Rh2 Bfe3 Qb3 Na6 b8R Bb7 c8N Bf6 Ra8 Nb8 Nd6 Be5 Ra5 Rd4 Rb5 Nc3+ Ka1 Nb1 Ka2 d1Q Rc3 Ba8 b7 Qg1 Qf7 Rd1 Qd5+ Kc7 Rb2 Qgf2 Rbc2 Bf6 Ne5 Kb6 Be6 Kc7 Ng4 Be5 Bh6 Bh8 Bg7 Kb6 Rh3 Kc7 Kb3 a2 Kb2 a1Q+ Kb3 Nc6 b8R Qa7 Rb6 Bb7 Rb5 Qb6 Ka2 Nb8 Qd3 Kc6 Qd2 Nf1 Ng3 Qg1 Nh1 Ng3 Ne8 Qff2 Nd6 Qc7 Nf7 Qe5 Nd6 Qef4 Qd5+
1q2n3/RN2nQ2/1KR2q2/1Np1B2B/3b3p/NnRbR1rq/2N1r1P1/bk1n4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 Kd6 e4 a5 b4 c5 e5+ Kd5 b6 Ke4 e6 h5 b7 f5 b5 c3 b6 h3 e7 h4 e8N a4 d5 a3 d6 c2 d7 f3 Ng7 a2 Bb2 c1N Be2 f4 Qb3 h2 Ne8 Ne7 Na3 Rg8 Nc2 Rg3 Qf7 Bg7 Be5 Na6 b8R Nb3 b7 Nc7 Re1 Ra4 Ra8 a1B b8R Ra2 Rb6 Ba6 Ra7 Bd3 Rc6 Qb8 d8N Bd4+ Kf1 f2 Nf3 Ba1 Rg1 h1Q Nfd4 Qh3 Nb5 Bf6 Nb7 Bg7 Bd6 Bgd4 Be5 Rb2 Ng7 Ne8 Nf5 Ra2 Nfe3 Rb2 Nc4 Ra2 N2a3 Rc2 Rc1 Rd2 Rc3 Rb2 Nb6 Ke3 Rh1 Kd2 Nc2 Kc1 Nc4 Kb1 Rh2 Bh7 Bh5 Ra2 Ke2 f1N Nca5 Ne3 Nc4 Nd1 Rh1 Be4 Rf1 Bh7 Rff3 Rb2 Rfe3 f3+ Kf1 f2 Ke2 Rg6 Kd3 f1Q+ Ke4 Qf6 Kd3 Nc8 Ke4 Rg3+ Kd5 Bd3 Rd6 Nc1 Kc6 Ne7+ Kb6 Nb3 Rc6 Ra2 Ne1 Rd2 Nc2 Re2 N4a3+
KR3R2/2prn1r1/n1NNb3/bqN2BkN/P2B2b1/2Br3Q/1p3B2/4qn1b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 b5 a4 h3 d4 h4 d6 f3 Kd5 f2 e4 b3 d7 b2 g5+ Kg6 e5 f5 e6 h2 e7 h3 e8N b4 Qb3 f4 Nd6 f3 Ne2 Nc6 Nd2 b1Q Bb2 Qf6 d8B Qd1 Ng3 Qb1 Nh5 Bg4 N2e4 Nb8 Bd3 f1N Bc3 Na6 Kc6 f2 Kb7 Rh7 d5 Rd7 Nc5+ Qf5 Bdf6 Rad8 Bfd4 Qe1 Rb1 Ne7 Rg1 h1B Ka7 Ng3 Rf1 h2 Qa3 b3 Be4 Kh7 g6+ Kh6 g7 Kg5 g8N Bhf3 Bc2 h1B Be4 Qe5 Bf5 Q5e2 Rb2 Qb5 Rb1 Be2 Rb2 Bc4 Rb1 Ng6 Ne7 Bg7 Nc6 Ne7 Rb2 Rg8 Rb1 Bf6 Rb2 Rg7 Ka8 Be5 Nc8 Bf4 d6 Be6 Rb1 Rd8 d7 Bd2 Ba1 Ba5 Bac3 Rf8 d8B Rff7 Bc2 Rf3 Nd6 Re3 Bf5 Rd3 Rg1 f1R Rg2 Rf4 Rf2 Nf1 Rf3 Kh6 Bf2 Rfd4 Rf4 Nc8 Bf6 Ne7 Be5 Rd5 Bed4 Kg5 Bh7 Re5 Rf8 Re2 Bf5 Red2 Qa2 Rd1 Qe2 R1d2 Qf3 Rd1 Qh3 b2 Rb8 R1d2 Ra1 Rd1 Ra3 R1d2 Rf8 Rd1 Rb3 Rg3 Nc4 Qb4 Be5 Rd7 Bed4 Rd3 Nd6 Qc4 Rb6 Qb5 Rbb8
Br1n1N1K/1pRR4/q5R1/q5rB/q2pb2n/R1B2Pb1/k1Bn4/Nn2Qr2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 h3 a4 h4 g4 e6 c4 d3 f6 d2 f3 d4 g5 h2 c5 b3 c6 h3 a5 b2 a6 Rh5 Na3 b1N Qe1 d1Q a7 Qa4 Bb2 Qda5+ Bb5 Bd7 c7 Bc6 c8R Be4 Bc3 Bg7 Nc2 Nc6+ Kd6 e5 Rc7+ Nge7 Bd3 Nd8 Ne2 Rb8 Rg1 h1Q a8B h2 Ra3 Bh6 Rg4 Qf1 Nf4 h1N Ne6 Ng3 Rb3 Qe2 Nf8 Nf1 Rg3 Nfd2 Na1 Qf1 Bc2 Qfa6+ Rc6 Nf5+ Kd7 Nh4 g6+ Kg8 Ke7 Bf4 Rc7 Rg5 f7+ Kg7 Rg2 Bh2 Rd7 Bg3 Ke8 Kf6 g7 Kf5 g8B Kf4 Nh7 Kf5 Kf8 Ke6 Rc7 Kd5 Rg1 Bg6 Kg7 e4 Nf8 e3 Kh8 e2 Bh7 Bf5 Bg6 Be4 Rd7+ Kc4 Bh5 Qa3 Ne6 Q3a4 f8R Bf5 Rff7 Be4 Qf2 e1R Nf8 Rf1 Qe1 Bf4 Rg4 Bg3 Rg7 Rb5 R4g6 Rg5 Rc7+ Rc5 Rgd7 Qd6 Bb2 Qda6 Re3 Kb4 Bc3+ Ka3 Bb2+ Ka2 Rb3 Rd5 Bc3 Rg5 Ra3+
2n1R1Q1/p1rB4/N2qNB1n/2b2bqb/K2kpBR1/1P1rN2B/3N3q/3n3n b - - 0 1 illegal: No possible last move
RN1b4/1R4q1/4p1P1/2rknb2/2BbRrQ1/B1Bb2p1/3RN1r1/nbKb3B b - - 0 1 illegal: No proof kernel
Nbr4N/N1Bp2nK/PrB3r1/1b4rk/1p2r1bN/3QrB1B/4R2n/R2q4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 b5 Ke4 h5 c4 e5 a4 h3 g4 h2 f4 h4 g5 b3 f6 Kg6 f7 d3 a5 d2 c5 h3 c6 b2 c7 Rh4 Qg4 d1B Nc3 b1R Nf3 Na6 Qf5+ Kh5 g6+ Qg5 g7 Bd6 f8N Nh6 g8B Ng4 Bd5 b4 Rg1 h1R Rg2 h2 Ng6 Rg1 Nh8 h1R Nb5 Nh2 Bc6 Bb7 c8B Bb8 Rd2 Nc7 a6 Ne6 Bh3 Ng7 Na7 Be2 Rb2 Bb5 Re2 Rb3 Bb2 Rhg4 Nh4 Rd3 Bd4 R1g2 Bb6 Re3+ Kd5 e4 Bc7 Rd1+ Ke5 Rd6 Rd1 Ra3 Ra1 e3 Bf3 Be4 Bb7 Rb6 Bd5 Bc2 Bc6 Bd1 Ke4 Ra5 Qd5 Rg3 Qd3 Qg6+ Ke5 Qe4+ Kf6 Qd5 f5 Rg2 Rb2 e2 Rba2 e1R Re2 Qd6+ Kf7 Rgg1 Kg8 Rg3 f6 Rg2 Bfd5 Re4 f7 Rg6 f8N Re3 Ne6 Re4 Rg2 R1e3 Kh7 Bf3 Re2 Bg4 Bb3 Qd5 Bd1 Qb3 Rf2 Qc2 Bf3 Qd1 Rd2 Ba4 Rg2 Rag5 Re2 Bb5 Bg3 Bd6 Nc7 Rc8 Na8 Bb8 Bc7
b4bNK/n3B1r1/b1nR1b2/2q3N1/4PB2/Bb1prp2/1RR5/kRQBn2n b - - 0 1 illegal: No possible last move
1Bk3nN/n1Br1r1n/B5N1/1bRN4/1K2p1rN/1p2PQr1/1n2R2b/1B3r1q b - - 0 1 illegal: No possible last move
4n2r/RbbBbP1n/N4bb1/1n4B1/n2r4/2NQpBR1/R1pR4/K1k1B2q b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kd7 Kd2 Ke6 Kc3 Kf5 f4 c5 b4 e5 Kb2 h5 b6 a5 g3 h3 d5 h4 b5 e3 g4+ Ke4 d6 h2 b7 c3+ Ka2 e2 g5 e1B f5 a4 d7 c4 g6 h3 b6 c2 g7 a3 f6 c3 f7 Na6 b8B Nc5 b7 Ra4 Bd6 Qh4 d8R Be7 b8R Bf5 Bb5 Bg6 Nd2+ Ke3 Ba6 e4 Rb5 Bg3 Rb7 Nf6 g8B Nh7 Bc7 Rd4 Bd3 Na4 Bb6 Bc7 Bb5 Qh5 Kb3 a2 Ne2 Qf3 Rg1 h1N Rd6 h2 Ra7 Ng3 Ba5 h1B Bd7 Nh5 Rg3 Ng7 Ka3 Ne8 Nb3+ Kf2 Bg5 c1N Qd3 Ke1 Bb4 e3 Nc5 Qh5 Ba5 Bb7 Na6 Qh1 Bb4 Kf1 Rd5 c2 Nc3+ Kf2 Rd6 Ne2 Ba5 Rg4 Bb4 Nd4 Rd5 Nb5+ Kb3 Nhf6 Bh7 Rd4 Ba5 Bf5 Bg6 Nh7 Bh5 Bg6 Bd1 Ke1 Bf3+ Kf2 Rag1 a1B Ka2 Bb2 R1g2+ Ke1 Rd2 Bba3 Rd6 Bf6 Rb6 Bae7 Ka1 Nbd6 Rb2 Nb5 Ra2 Re4 Qc4 Rf4 Rd5 Rd4 Bb4 Kd2+ Qf1 Qg2 Qd3+ Kc1 Qe4 Nf8 Nb1 Qh1 Be1 Rb4+ Nc3 Nh7 Rd2 Rd4 Qd3
6Bb/r2N2R1/1n1B1BP1/2N2r1N/r1n1rb1k/1Knb4/1nNp1pq1/1R3QB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kf6 e4 Kg5 c4 h5 Kc2 f5 g4 a5 b6 d5 b5 a4 b7 a3 b6 a2 c5 h3 e5 d3+ Kb2 h4 e6 h2 c6 d4 c7 d2 e7 f3 e8N h3 Nc3 d3 Qb3 f2 Nb1 f4 Qf7 d1N+ Kb3 d2 Qf5+ Kh4 g5 f3 g6 Rh5 Qf7 Ra7 Ba3 Rf5 Ba6 f1N Nf6 Nb2 Bd6 Ne3 Ne2 Nec4 Ne4 Nf6 Nf4 Nbd7 b8B Bh6 b7 Nd5 Nc5 Nc3 Nh5 Bf4 Na3 Qg5 Rhb1 h1R Nc2 h2 Be7 Ndb6 Bf6 Bd7 c8N Re1 Bd6 h1R b8B Re4 Bb7 Bb5 Bd5 Ra4 Ba7 Rhe1 Qf8 Re7 Bg8 R1e4 Rf1 Rg7 Rab1 a1B Qf7 Na3 Rf2 Bd3 Qf8 Nac4 Rff1 Nbd5 Nb6 Rc7 Nbd7 Ndb6 Bb8 Rca7 Rfe1 Rd4 Re7 Re4 Rg7 f2 Qe8 Rd4 Qe1 Re4 Qf1 Be3 Bh2 Bf4 Bfe5 Qg4 Bbd6 Qg2 Bf6+ Bg5 Re7 Ne2 Nb7 Nd1 Bg7 Bf4 Bg1 Bf6 Bh8 Ndb2 Nbc5 Nc3 Rf7 Be7 Bhe5 Bf6 Bd4 Bh8 Rg7 Bh6 B4e5 Bf4 Bf6+
2R1B3/k1Nb2bq/4Pp2/2nrN3/1K3N1n/2BprBBn/b2N1r1r/1Q2Rb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 g4 Kc7 c4 Kb7 e4 h5 c5 a5 b6 f6 b5 a4 e5 d3 Kc3 a3 e6 d4+ Kb4 a2 g5 h3 g6 d2 g7 h4 Nc3 h2 Qg4 d1R Nh3 f3 Nb1 f2 Qg1 Ra3 Bd2 Bd7 Nf4 h3 Be2 f1B Bc3 Qe7 Nd2 Nh6 g8N Bg7 Rc1 Nf5 Nh6 a1R Nf7 R1a2 Ne5 Nh4 Qg6 Ka8 b7+ Ka7 Qb1 Rh6 Rg1 h1N Bf3 h2 Rc2 Qf7 c6 Nf2 c7 h1B c8B Nh3 Rc1 Bhg2 Rh1 Bc4 Re1 Bgf1 Rc2 Qg8 Rc1 Qh7 Rc2 Be8 Bd7 Bd5 Bc6 Nd7 b8N Nc5 Na6 Bd7 Rc1 Rc2 Nc7 Ba2 b6+ Kb8 b7 Ka7 Ndc4 Rf2 Rc2 Rd3 Nd2 Re3 Ba4 d3 Bac6 Ra5 Bb5 Bc8 Be8 Bd7 Rcc1 Rg6 Rc2 Rgg2 Rcc1 Rh2 Rc2 Nb3 Rcc1 Rd5 b8B+ Kb6 Rc2 Nc5 Nb5 Qe4+ Bd4 Rd6 Nd5+ Kb7 Ng6 Nb3 Rc8 Qf5 Bc3 Nc5 Bc7 Qh5 Bb8 Qh7 Bc7 Rc6 Bg3 Rd6 Ndf4+ Rd5 Nc7 Ka7 Ne5
b1QBBK2/3rNn2/1q1p2R1/4R1p1/3Pr1r1/1Rb1n2n/1bk1b3/1R1Br1BN b - - 0 1 illegal: No possible last move
R1NqqN1r/QRRnpk1r/3R2bp/4Pq2/KN3r1r/B1q2b2/N5B1/1n6 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Qd3 Bh6 Qd2 fxg4 Qd1 g3 Bd2 g4 Bc1 Bg5 hxg5 Kf8 Nd2 Kf7 Nb1 Ke8 Kd2 b5 f4 d5 a4 b3 c4 b4 e4 h6 g6 b2 Kc2 g2 Kb3 g3 a5 d3 c5 d4 a6 d2 e5 d3 c6 Bg4 f5 Nf6 a7 Bf3 g7 Nd5 g8N Nc3 c7 Rh7 c8N Nd7 f6 Kf7 Ne2 g1Q Nf4 g2 Nd5 Qe3 Ra6 g1R Bg2 Rf1 Rd6 Qe8 Qe1 d1R Qf2 Rb8 a8R d2 Rh2 Qd3 Qa7 Rde1 Rh3 Re4 Rh2 Rh4 Rh1 Nb5+ Ka4 b3+ Nb4 d1Q Nc3 b1Q Na2 Qc3 Ba3 Qf5 Rg1 Rf2 Re1 Qdd2 Rb1 b2 Rc1 b1B Rc2 Qcd4 Rc7 Qb6 Rb7 Qbd8 Rc7 Qc3 Rb7 Kf8 f7 Kg7 f8R Bd3 Bc1 Na3 Nf6 Nb1 Ba3 Bde4 Rh8 Kf7 Rg8 Qh5 Rg4 Bg6 Rc4 Qf5 Rcc7 Be2 Ne4 Rff4 Nc5 Bf3 Ne6 Qf8 Rc4 Qc7 Nb6 Re8 Nc8 Qd8 Bf1 Qg7 Bg2 Reh8 Rcc6 Qgf8 Rcc7 Qfe8 Nf8
N1N2B2/R1K5/kn4Pp/q4pN1/2n1b2Q/q1R1p1rN/2Bb1R2/1nbR1r1q b - - 0 1 illegal: No proof kernel
Qn1q2N1/qbnNrR2/N2BRP2/B4r2/kp1B1N2/pb6/B2K1pqb/6r1 b - - 0 1 illegal: No proof kernel
3nrN1R/8/3p1Q1r/q1p2nKB/1k3pN1/2rPRb2/nb3qN1/2Nq1RBR b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 axb5 g5 c4 gxh4 c5 Nc6 Kf2 Nd4 Ke1 Nc2+ Kf2 Bxc5+ Kf3 Bd6 Kf2 Bf8 Kf3 Ke7 Kg4 Kd6 b4 h5+ Kf5 a5 g4 f3 e4 f2 b6 a4 d3 a3 b7 a2 b8N h3 g5 h2 b5 Kc5 b6 d6+ Kf4 f5 g6 h4 g7 h3 b7 Kb4 e5 c5 e6 Rh6 e7 Qa5 e8R Ne7 g8N Nc6 Nd2 Bg7 Nb3 Nd8 Be3 Bb2 Kg5 f4 Nc1 Bg4 Be2 f1Q Nf3 Qf2 Ne1 Bf3 Ng2 Nd4 Re6 Nf5 Nd7 Rb8 Rb1 a1N Nf8 Nb3 Nf6 Ra8 Rf1 h1R Ng4 h2 Bd4 Rg1 Re3 h1Q Ra1 Nc6 Qc2 Re8 Rb1 Nd8 b8R+ Ka4 Qc4+ Ka3 Qf7 Ka4 Na2 Nc1 Qf6 Ka3 Rb7 Ka4 Rh7 Ka3 Rh8 Kb3 Nc3 Kb4 Bd1 Na2 Ne2 Qh2 Nc1 Qe1 Bb3 Qd1 Bf7 Qg3 Ra1 Rgh1 Bh5 Rh2 Ne1 Rc2 Ng2 Qf2 Ree1 Qfe2 Bg1 Qf2 Re3 Rc3 Bh2 Ne7 Rh1 Qde2 Nb3 Qd2 Raf1 Qd1 Bg1 Nf5 Nc1
bq5k/3qB3/pnR1n2R/1p1RN2B/1b1r1p1b/1B1N1P1R/nBr4r/1K2Q3 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a4 d5 axb5 dxe4 b6 c6 b5 cxb5 d4 f5 Kd2 Kf7 c4 Kg7 Kc2 e5 g4 h5 b7 f4 c5 a6 f3 h3 d5 e3 g5 h4 g6 e2 c6 e1N+ Kb2 e4 d6 e3 d7 h2 c7 e2 Qa4 h3 Nd2 Nf6 Nc4 Ne4 Qb3 Nc5 Ne5 Nc2 Qe3 e1B Bd3 Nb4 Ne2 Na2 Bc2 Be7 Bb3 Bb4 Rb1 Qe8 d8R Nbd7 b8B Bb7 c8R Nb6 Bd6 Ne6 Rc2 Bf6 Be7 Rc8 Rc3 Rh4 Rd5 Qd7 Rc7 Ba8 Rc4 Kh8 g7+ Kh7 g8B+ Kg7 Bf7 Rc5 Rhd1 h1Q Qf2 Qg2 Rh1 h2 Ka1 Kh8 Bb2 Rc7 Nc1 Qg8 Rc2 Rc4 Qg3 Re4 Rc6 Rd4 Ncd3 Qb8 Rbf1 Rg4 Qe1 Rg2 Kb1 Rc2 Rfg1 Bg5 Rg3 Bf6 Rg6 Bh4 Rf6 Nc8 Bh5 Nb6 Rg1 h1R Rg3 Rhh2 Rh3 Qbb7 Rg6 Qb8 Rh6+
Kn1R4/1R1P2p1/4Bp2/np1qQb1q/3Rr2B/q1N2Rb1/1Bk2N2/r2rb2B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 a4 Kf6 d4 Kf5 e4+ Kg5 h4+ Kf6 e5+ Kf5 d6 Ke4 h5 b5 d7 c5 e6 f3 a5 c4 d5 b3 e7 c3 e8R+ Be7 h6 b2 h7 c2 a6 Nf6 a7 Rg8 h8R Nc6 d6 Na5 Qe1+ Kd4 Nc3 b1R Bh3 Kd3 Kg3 f2 Kf4 f1Q+ Ke5 g3 Be6 g2 Ra3 Qf3 Bb2 c1Q R1h4 Kc2 Nh3 g1B Nf2 Bh2+ Rf4 Bf8 Re7 Bg3 Ra4 Qe8 d8B Nd7+ Kd4 Nb8 Kc5 Bd7 Kb6 Qd5 Rad4 Qe3 Rf3 Rd1 Kc7 Bc8 Rd7 Qd3 Bg5 f6 Qe5 Qh5 Bh4 Be7 Rd8 Re8 Rf8 Qe3 Rf7 Qc1 Kb6 Qa1 Kc7 Qa3 Kb6 Bf8 Rb7 Re7 Bh3 Bf5 d7 Re8 Bg4 Bb4 Kc7 Be4 Be6 Bf5 Na4 Be1 Nc3 Nbc6 Kb6 Rc8 a8B Nb8 Ka7 Rc4 Rc7 Ra4 Bb7 Qab3 Bc6 Raa1 Rb7 Qa4 Ka8 Qa3 Re3 Qc4 Bh1 Qd5 Bf7 Re6 Rf3 Re7 Qc7 Re3 Qe5 Re4 Be6
1n6/1Kpr2r1/rRBbQNB1/1q1n2Nb/Bk1N1B2/pR1bN3/4p2P/3q1n2 b - - 0 1 illegal: No proof kernel
B1bR1bR1/bB5r/1Q4b1/3b1k2/qP1nnN1B/p1N1r1np/4pR2/2B1K1R1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Kf6 f4 h5 c4 d5 g5+ Kf5 c5 a5 g6 e5 b6 d3 c6 e3 c7 h3 b7 a4 g7 d2+ Ke2 h4 Qb3 d1B+ Ke1 h2 Nf3 e4 Nfd2 e2 Kf2 e1B+ Ke3 a3 Ra2 h3 Rg1 h1N Nc4 Ng3 Nb6 Bf3 Bg2 Qd7 Rf2 Nc6 b8B Rh7 Nc3 Nf6 g8R Nd4 Qc4 Qa4 Qb5 Bh5 Qc6 Bg6 Qd6 Be6 c8B Raa7 Qc6 Rae7 Bb7 Bc8 Bc7 Re5 Bd8 Re6 Nc4 Re8 Nb2 Re5 Qb6 Ree7 Rc2 Bf2+ Kd2 e3+ Kd1 Nfe4 Nd3 Re5 Bh4 Re8 Rh1 Bg1 Ke1 e2 Rd2 Nf2 Rd1 Re3 Bf3 Nfe4 Rh2 Nb5 Rf2 d4 Ba8 Nf6 Bfb7 Nfe4 Nc5 d3 Ne6 Kg4 f5 Nd4 f6 Bh6 f7 Bf8 Rh2 Kf5 Rf2+ Rf3 Qa5+ Bc5 Rf1 Nc6 Qa7 Be7 Qa6 Ba7 Rf2 Nd4 Nf4 Re3 Qb6 Bc5 Bf6 Be7 f8R Bd6 Rd8 Bf8 Be7 Nd6 Rf3 d2+ Kf2 Nde4+ Kg1 Rf7 Bh4 Rh7 Rdf1 d1B Re1 Nc5 Kf2 Bb3 Rg1 Bd5 Ke1 Nce4 Rf2
1Nnk1r1b/1b1r4/Bpnn3p/2nBq1R1/7n/b3RB1p/3PN3/R2QRKB1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 g4 c5 a4 f5 e4 b3 e5 b6 d6 h6 a5 h3 g5 f3 e6 f2+ Ke2 b2 a6 f4 g6 c4 e7 c3 g7 c2 a7 f3+ Ke3 Rh7 Qe1 Bb7 Bc4 f1N+ Kf2 Nc6 Nc3 b1N Nge2 Nh2 Nd5 Qb8 Qf1 Nc3 Ba6 Nb5 Ba3 c1B Nb4 Bb2 Qd1 Kd7 e8B+ Kd8 d7 Nd6 Re1 Nge7 g8R Bh8 Bf7 Nec8 Bd5 Rf7 Rg5 Re7 Kg1 f2+ Kh1 f1N Kg1 Qc7 Bb2 Rb8 a8B Ng3 Bd4 Nge4 Bc5 Nf3+ Kf1 Nh4 Bg1 Nc5 Bf3 Rg7 Bd5 Ke7 d8R Rh7 Re8+ Kd7 Ree5 Kd8 Re6 Qe7 Re4 Qe5 Re3 Rd7 Bac4 Nd4 Rg7 Ba6 Rea3 Nde4 Bd3 Na7 Bac6 Kc7 Rg6 Na4 Rg5 Bb7 Rc3 Bd6 Be6 Rf8+ Bf7 Kd8 Na6 Nc8 Nb8 Ba3 Ba6 Nac5 Re3 Ned6 Bf3 Nc6 B7d5
kr3qbN/4Pr1R/n2b3n/B5B1/1r1pRQ2/3p1rnB/3BN1pK/2N2r1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f5 Kg2 a5 e4 g5 b4 d5 h4 Kd7 c4 Kc7 c5 Kb7 b6 f3+ Kh2 f2 h5 f4 h6 a4 e5 a3 e6 a2 h7 d3 c6+ Ka6 c7 Kb7 b5 d4 Qd2 f3 Nc3 Na6 Bh3 f1R Nge2 f2 Qf4 Rb8 Bd2 Ka8 Nc1 Bd6 e7 Qf8 N3e2 Be6 c8N Nh6 Ba5 Rg8 h8N Rg7 Rb1 a1R Rb2 Be5 Nd6 Rf7 Ne4 Ra4 N4g3 Bd6 Rc2 Ba2 Rc5 Bc4 Re5 Rb4 Re4 Be6 Kg2 Bb3 Rh2 Bd5 Nh1 g3 b7+ Ka7 Kf3 g2 Kg3 g1N Kg2 g4 Kg3 Rd8 b8B+ Ka8 b6 Re8 Kg2 g3 Bc7 Rb8 Bd8 Ra4 Bd2 Rb4 Bc7 Re1 Bd8 f1R Bc7 Rf3 b7+ Ka7 Ba5 Ref1 Na2 Rd8 b8B+ Ka8 Bbc7 Rdb8 Nac1 Bc5 Be5 Bd6 Bf6 Be6 Nc3 Ne2 Bg5 Bd5 Bd7 Ba2 Rh4 Bb3 Kh3 g2+ Kh2 Ng3 N3e2 Rh7 Bc8 Bg8 Bh3 Rf7 Rh5 Nhf5 Rh7 Nh6 Bb6 Rc4 Bd8 Rcb4 Ba5
Nnb2r1k/pb1B1Q1q/pP5N/Rbbb1p2/Bn3B2/2NR2K1/N7/n1B2r2 b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 a6 bxa6 cxd5 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 c5 d4 f5 e4 Kf7 g4 Kg7 b4 h5 g5 f3 d6 h3 b5 h2 b6 h4 d7 c4 d5 h3 g6 c3 d6 c2 e5 Rh7 e6 Qf6 d8B Qg5 e7 Qd2+ Ne2 Qb4 e8B Rh5 d7 Nf6 Nec3 Kh8 Qd5 Bc5+ Kg3 f2 Qf7 Nd5 Bb5 f1B Ba4 Bb5 Rd1 h1B Na2 h2 Nbc3 Bf3 Rd4 h1B Rd3 Rh4 Bc7 Rf4 d8N Bhg2 Ba3 c1N Ne6 Nb3 Bd7 Qe4 Bb2 Nb4 Bc1 Qb7 Bd6 Bfc6 Nc7 Rf1 Bdf4 Bcd5 g7+ Kh7 g8N+ Kh8 Rb1 Na1 Nh6 Bgf3 Ne8 Qc7 Rb2 Bdb7 Rb3 Bfd5 Ra3 Qc6 Nc7 Qg6+ Kh4 Qh7 Kg3 Nac2 Bb3 Na1 Ra5 Bf8 Bc2 Bc5 Ba4 N8c6 Be8 Bce6 Bd7 Rf8 Be8 Bec8 Na8 Nb8 Bd7
2kR3N/b1bN3b/1RRnp1Qr/KPp5/3pq1rn/B2N3R/r1B2n2/2n4N b - - 0 1 illegal: No possible last move, all moves rejected
1knrb2N/N5rb/1B1bbp1K/B2B3p/b1Q1p3/8/P3NB1n/R1R2qNq b - - 0 1 illegal: No proof kernel
4N1Bb/N3R1qq/K1b1p1r1/1p2B2q/1PB4Q/1qnB4/1N2pnN1/R3q1rk b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 cxd5 g5 Ba6 gxh4 Bf1 a4 Qb3 axb3 Ke2 Kd7 g4 Kd6 a4 Ke5 a5 Kf4 d4+ e3 Kd3 h5 Kc4 b5+ Kc5 h3 d6 b2 d5 h4 a6 h2 g5 h3 g6 e6 a7 Rh6 g7 Nf6 g8B Nc6 Nd2 b1Q Bd3 e2 Ngf3 Ng4 Ne1 Qg5 Bb2 Bd7 Nc4 Ne7 Ng2+ Kf3 Be5 Bc6 d7 Rg6 d8N Qb3 d6 Nd5 Nb2 Bg7 d7 Nc3 Rhf1 Rb8 a8B h1Q Nf7 h2 d8N Bh8 Nd6 Qh5 Ne8 Qg1 Ra7 h1Q Rfa1 Qh7 Rb7 Q1h5 Bc4 Bd7 Nc6 Rd8 Na7 Bc6 Bd3 Qe1 Bc4 Rd1 Bd3 Qg7 Bc4 Qeh1 Bd3 Rg1 Bc4 Ke4 f4 Kf3 f5 Nf2 f6 Qhh7 f7 Q1h5 Nf4 Kg3 f8Q Kh2 Ng2+ Kh1 Qf4 Bd7 Ra3 c6 Kb6 c5 Ra1 Bc6 Bd3 c4 Qg5 Nd5+ Ka5 c3 Re7 c2 Ka6 c1Q Bc4 Qe1 Qh4+ Qh3 Bb7 Nc3 Ba8 Bd7 Be4 Bc6 Qf4 Qd3 Bf5 Qdd1 Bfd3 Qb3 Qh4+
2BN4/bNKn4/1Bp1kN1b/1p3rR1/Nq1BnB1p/2P2r2/1rq1r2Q/1R2r3 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Ke3 e5 d4 h5 f4 b5 a4 c6 g5 h4 f5 b3 g6 b2 a5 Ba3 c3 Ra6 g7 Qf6 d5 Rb6 d6 Ra6 Qe2 Qd8 f6 Nh6 g8N Rb6 f7 Ra6 f8B Qc7 Nd2 b1Q Nf6+ Ke6 d7 Qc2 d8B Ng8 Rb1 Qe7 Ngf3 g1R Nb3 g2 Bg7 Nd7 Bb6 Qb4 Rh3 Ra8 a6 Rf8 a7 Rh5 a8N Rf5 Na5 Bb2 Bd2 Bc1 Nb7 Rh1 Rg3 g1B+ Qf2 Rh2 Bh3 Rg2 Rg5 Rf7 Ke2 e3 Bg4 e4 Ne5 Rf8 Nf7 Rh2 Qg2 Bf2 Qh3 Rg2 Qh2 Bg1+ Ke1 e2 Bf4 Rf2 Bd8 Rg2 Nb6 Bd4 Na4 Ba7 Bb6 Be3 Nh7 Bc1 Bgd4 Ngf6 Qh1 Rh2 Qg2 Bd2+ Kf2 e3+ Kf3 Ne4 Nf6 e1R Qg3 Rg2 Qh2 e2 Nfd8+ Ke7 Rh5 Reg1 Ne8 Rg8 Rb2 Rfg5 Bb8 Rb1 Nf6 e1R Nf7 Ndc5 Bc8 Nd7 B8c7 Bc1 Bg3 Rd2 Kf4 Rc5 Rd5 Rde2+ Kf5 Bh6 Bf4 Rg3 Re5+ Kf8 Ke6 Rf3 Rg5 Rf5 Rb3 Nec5+ Kd6 Ne4+ Kc7 Ke7 Rb2 Ke6 Rb3 Ra1 Rb2 Ra2 Rb1 Rb2 Nfd8+
QbRB2bN/5RR1/2pq2b1/bp2bB2/r1Rp1N1q/7n/Nnr2P1N/3k3K b - - 0 1 illegal: No proof kernel
3r4/N1P2r1R/2pq4/QBn1Rp2/bKbb1p1N/1B2B3/3RBR1b/4bnqk b - - 0 1 illegal: No proof kernel
BQ6/q1p2r2/qpBq1nn1/1N1R4/NR1pbb2/3B1rR1/K2Pq2k/1R3qB1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 c3 axb4 Rh2 bxc3 Rh3 Ra7 Rh1 Ra8 a4 Kf7 g4 Kf6 f4 e5 a5 d5 a6 h5 a7 h3 Ra3 h4 Qe2 h2 Kd1 b6 Kc2 e4 Kb3 c2 Nc3 h3 Qd3 e3 Nf3 e2 Nd4 e1Q Ka2 Nd7 Ndb5 Ne7 Bb2 c1Q Na4+ Qe5 Qe2 Rh7 Rg3 Rf7 Bd4 Ng6 Bg1 Bh6 Qf2 Qc6 Bd3 Bb7 Qf3 Rc8 a8B Qe2 Qf2 Qd6 g5+ Kg7 Qe3 Nf6 Qe8 Q8d7 Qd8 Rb8 Qe8 Qc8 Qd8 Bc6 Qe8 Qa6 Qc8 Ne8 f6+ Kh7 f5 d4 Qb7 Rd8 Qb8 Be4 Bc6 Rdd7 Ba8 Rf8 f7 Nf6 Bc6 Rg8 f8R Rf7 Re8 Rgf8 Re5 Kg7 Rd5 Qa7 Be3 Kh7 Rf1 h1Q Rb1 h2 Rb4 Qhf1 Bg1 h1Q Ba8 Nh8 g6+ Kg7 Bc6 Bf4 Ba8 Kh6 g7 Kh5 g8B Kh4 Bc6 Ng6 Ba8 Nh7 f6 Qhh3 Bc6 Qc8 Ba8 Qca6 Bc6 Rg7 f7 Nf6 Bh7 Re8 f8R Rf7 Rh8 Re5 Ba8 Rf5 Rg8 Be3 Re8 Rf3 Bg8 Bf4 Re6 Qd7 Rc6 Qd6 Rc1 Qee1 Rcb1 Qee2 Rgg5 Kh3 Rg4 Rh7 Bf7 Rg7 Be8 Re7 Bec6 Rf7 Be3 Kh2 Rg3 Qc5 Bf2 Qd6 Bg1+
3N4/Bq1b1N1k/8/K2b1Rrp/n1P1QNR1/NppBn3/1B4q1/br3Brb b - - 0 1 illegal: No proof kernel
R4N1R/8/3pbrB1/K3b1k1/1PQp2qn/NbRN2pN/1q1bqR2/2n1B2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 e4 Kf6 h4 a5 b4 g5 c4 a4 b6 f3 c5 f2 b7 g3 c6 a3 h5 g2 h6 g4 c7 a2 h7 Ne7 e5+ Kg5 e6 Nbc6 b8N Ra6 Rh6 Ne5 Qf3 Nd3 Nc6 Nf5 e7 Nh4 e8R Qf6 Na3 g3 Be2 f1B Ne5 Be7 Rb1 a1B Qc6 Qe6 Qd5 Qg4 Rb2 Rf6 Qc4 d6 Ra2 Bc3+ Kc2+ Bd2 Kb3 Be6 Ka4 Bd8 Bb2 Nc1 Bd3 Be2 c8R Bd1+ Kb5 Bb3 Bc3 Be7 Bf5 Bf8 Bg6 Bg7 Ne2 g1Q Ka5 Qd1 Nf4 Qc2 Ned3 Qb2 Red8 Rf5+ Rc5 Be5 Rf8 Rf6 Ra8 Rg8 h8N Rf8 Ne2 Rf1 Rc6 f5 Ng1 f4 Rc7 f3 Nh3+ Kf6 Rc6 f2 Rc5 Rh1 Rc6 Bdf4 Be1 f1Q Nf7 Qff2 Rh8 Qbc2 Qd5 Qf1 Nfg5 Qb1 Rac2 Qb2 Rf2 Qfe2 Rc3 Rf7 Qc4 Rf8 Bh5 Kf5 Nh7 Rf6 Rg2 Bg5 Nf8 Bd2 Rf2+ Qef3 Ng1 Kg5 Bg6 Qe2 Nh3+
2nR2R1/k3N1K1/q1pN3r/b1B5/b1Rrq1p1/B3q3/nr1pPBB1/2Q1Rq2 b - - 0 1 illegal: No proof kernel
bR5r/B2n2p1/r4B1p/2Nn1R1k/pN2b2B/1r2N1Q1/Knq2qPN/5B1r b - - 0 1 illegal: No proof kernel
br5k/3B1P1q/1r5R/2p1pB1R/2qNn1pK/BRq1n3/1bQ2r1R/1N4rB b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 h4 Kf7 d4 b5 a4 e5 f4 g5 Kf2 Kg7 Kg3 c3 d5 c2 a6 e3 a5 b4 f5 b3 h5 e2 d6 b2 d7 Nc6 a7 Ba3 a6 Nf6 Bh3 Rf8 h6+ Kh8 h7 Rb8 a8B Bb7 a7 Na5 Rh2 c5 Nf3 Nc4 Nd4 Qc7 d8R Ne3 Rd6 Qf7 Qd2 e1Q+ Qf2 Bd5 Bc6 Qc3 Bd7 Ba8 Rb6 Qfc4 Rb3 Rb6 Ra2 Rfb8 Qd2 Ne8 f6 Nd6 Rh1 Ne4+ Kh2 Nf5 f7 g3+ Kg2 Ne3+ Kf3 g2 Bhf5 g1R Rh5 Ng2+ Kg4 Ne3+ Kh3 g4+ Kh4 Rf1 Rh6 Rf2 Qd1 Bd5 a8B Bb7 Bd2 c1R Qc2 Rg1 Bc1 Kg7 h8R Bd5 Nd2 b1Q Rh5 Bb2 R8h6 Ba1 Ba3 Bb2 Bb7 Bc6 Ba6 Ba8 Bb7 Qbf1 Nb1 Qfd3 Bh7 Kh8 Bd5 Nd2 Bb7 Qg6 Bh1 Qg7 Bd3+ Qh7 B3f5 Ne4 Qd1 Bc1 Re2 Bb2 Qc2 Rff1 Rg2 Rf2 Rh2
qN3B1n/n1rN1P1b/1r4pR/2Rqbr2/1p1n2k1/5Qr1/NNp3B1/3BKB2 b - - 0 1 illegal: No possible last move, all moves rejected
Qnn3k1/1p1N1nb1/n3B3/3B1bpB/1q2RR1B/1N2prrN/N1P1K3/1q4b1 b - - 0 1 illegal: No proof kernel
BnrB1K2/Rk6/1N1n4/B1b1bPb1/Nnn3B1/1NpR2N1/p4r1p/1Q1q3b b - - 0 1 illegal: No possible last move
k1Kn1N2/1n1p1q2/3P1Nb1/1pBBR3/q1BrQ1B1/np3q2/R1N1b3/n1b3N1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 e5 c5 exf4 Qc2 Ra6 Qb3 b5 Qd1 Rb6 cxb6 axb4 Kf2 h5 Kf3 c5 Ke4 f5+ Ke5 c4 e4 f3 g4 f2 d4 f4 a4 c3 d5 c2 g5 f3 a5 h3 a6 h2 a7 h4 a8B h3 g6 Qh4 g7 Kd8 b7 Kc7 Kf5 Nc6 b8N Bb7 e5 Na5 e6 Nh6+ Ke5 Nf7+ Kf5 Nd8 g8B Bh6 Be2 f1N e7 f2 Be3 c1N Qa4 Ncb3 Bc5 Nfd2 Na3 f1B Ke5 Nb1 Ra2 Bc1 Nc6 Na1 Nd4 Kb8 Kd6 b3 Nac2 Na3 e8N Qf2 Qb4 Rh4 Ne6 Qd4 Qe1 Qa4 Nf3 Rd4 Nf8 Bc6 Rg1 h1Q Rg5 h2 Ng1 Qg2 Rf5 h1Q Bg4 Qh7 Nf6 Qf3 Re5 Bb7 B8e6 Qf7 Qe3 Be2 Qd3 Ba6 Bc6 Bb7 Qh7 Ka8 Kc7 Bd1 d6 Be2 Be4 Bc6 Kc8 Nab7 Bc4 Bd5 Qf5 Be6 Qh7 Bf5 Bed5 Be4 Qf5 B4d3 Qf4 Bg6 Qe4
1BqQ1R1b/1n3q2/6qR/BRnN3p/p1b1bn2/K2N1pB1/P1RkB1n1/2r5 b - - 0 1 legal: proof: e4 b5 c4 bxc4 f4 a5 g4 g5 h4 gxf4 g5 Ra6 h5 Rg6 hxg6 d5 Qc2 dxe4 Qa4+ Nc6 Qd1 Nb8 d4 Kd7 Kd2 Kc6 Kc3 Kb5 b4 h5 Kb2 c5 d5 e5 d6 f5 g7 a4 d7 e3 g6 e4 Nf3 e2 Ka3 e1Q Qd5 e3 Qe6 e2 Nh2 c3 Qe3 Kc4 b5 c2 b6 f3 b7 f2 Bd2 c1N Qg3 f4 Rg1 f3 Bg2 Kd3 Be3 f1B Bh1 c4+ Bc5 c3 Qc7 c2 Bg2 Qe8 d8B Nc6 b8B Bb7 Ng4 Nf6 g8R Qf7 g7 Nd5 Nc3 Nb3 Rb1 Nca5 Ne5+ Kd2 Nd3 Qg3 Bd6 Nf4 Nd5 Nc5 Rb5 e1N Qb6 Rh6 Rh8 Qgg6 g8R Bg7 Rf8 Bc3 Rh7 Bh8 B6c7 Be2 Bf1 Neg2 Bh4 Bc6 Bg3 Ba8 Qd6 Nab7 Qd8 c1Q+ Kb4 Nb3 Ba5 Qc8 Rh1 N3c5 Rg1 Bd1 Be2 Bb3 Rc1 Bc4 Rc3 Qg5 Bb6 Rc6 Rh6 Qgg6 Ba5 Re6 Bf1 Re1 Ka3 Rc1 Be2 Nd6 Ne3 Be4 Nd5 Ndb7 Rc2+
R2RN2R/4qp2/Bkp2q1n/N1bN4/q1RpQN2/rbB5/1K1n1Pb1/1n2b3 b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 Bb2 axb4 Bc1 h5 c4 hxg4 Bh3 b5 Qd3 b3 Qd1 b4 Bg2 Ra5 Bf1 Rb5 cxb5 Qe7 Qd3 Qh4 Qd1 Qd8 Kd2 g5 a4 d5 e4 Kd7 h4 c6 b6 g3 e5 g4 h5 d3 a5 g2 b7 Kc7 e6 d4 h6 b2 h7 b3 e7 g3 e8R Qe7 a6 Nd7 b8N Nc5 a7 Nh6 a8R Ne4+ Ke1 Kb6 Na3 b1Q Qe2 b2 Kd1 d2 Na6 Bh3 Nc7 Qa2 Kc2 b1N+ Bb2 d1B+ Kc1 Qf6 Red8 Bc5 Bc3 Ned2 Qe4 Bb3 Ne2 g1B Ne8 g2 Nf4 Bh2 Ba6 Rf8 h8N g1Q+ Qe1 Qg4 Qe4 Qgg5 Nhg6 Bg2 Ne7 Bb4 Nf5 Bg3 Ne3 Qge5 Rh5 Qee7 Rc5 Rg8 Rc4 Bh4 Rac8 Rg3 Ra8 Bg5 Rac8 Bc5 Ned5+ Ka7 Nc2 Qa4 Kb2 Rh3 Nce3 Rf3 Nf5 Re3 Nfd6 Rf3 Nb7 Rh3 Ne3 Kb6 Na5 Rg3 Ne6 Bf4 Ra2 Bfd6 Nf4 Bb4 Ra3 Bdc5 Ned5+ Ka7 Nb7 Nf5 Rd6 Bf3 Ng7 Qa5 Bb5 Nh6 Rh8 Ba2 Ne8 Nf1 Be1 Bg2 Ra4 Ra3 Bd2 Bb3 Rd8 Qa6 Be3 Be1 Bd2 Qa5 Bc3 Qa6 Rab4 Qa4 Na5 Nfd2 Ba6 Bh1 Rbb8 Bf3 Nb4 Bg2 Ra8+ Kb6 Nbd5+
2Q1N2b/p2Kbq2/1R3r2/2R1rr1b/1kBnNN1R/4r2p/1b2Rp1P/2B1N2q b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 Be3 bxa4 Bc1 e5 g4 f5 Kf2 Nc6 Ke1 Nce7 Kd2 exf4 Ke1 f3 Qd2 f4 Qd1 Nf5 gxf5 Ba3 Nc3 Bc5 Nb1 Bf8 Kd2 Ke7 Kd3 Kd6 Kc4 g5 Kb5 h5 b4 f2 c4 d3 e4 g4 f6 a3 f7 d2 Nc3 h4 Nb1 f3 Qe2 d1Q Bh3 f1R Bb2 g3 Nc3 a2 Rb1 a1B Qc2 g2 Be6 h3 Bc1 Be7 f8N Qc7 Ng6 Bb2 Nf4 Nh6 Ra1 Re8 Ra4 Nf5 c5+ Ke5 c6 Kd4 e5 d5 Bg8 Rf8 e6 Rf6 Bf7 Bd7 Bg8 Be8 Ne4 Bh5 Bf7 Re8 Bg8 Qd8 c7 Qd7+ Qc6 Re1 c8R Re3 Rc7 Ref8 Rc8 Qe8 Qd7 R8f7 Kc6 Kc4 b5+ Kb3 b6 d4 b7 d3 Rc4 d2 b8R+ Ka3 Kc7 Nd4 Rb6 Qf1 Rc5 d1R Rd8 Rf8 Qc8 Qf7 Kd7 Rdd3 Re8 Rb3 Rd8 Rb5 Re8 Kb4 Rd8 Rf5 Re8 Bf6+ e7 Bh8 Rh6 Re5 Rh7 Rb6 Rh6 Rf6 Rh7 Qg7 Bc4 Qf7 Rh6 Bg6 Rh4 Bh5 Nge2 g1B Ng2 Bf2 Nef4 Be1 Rg1 f2 Rh1 Bec3 Ne1 Ba3 Rg1 Bcb2 Rg6 Qh1 Rd8 Qg8 e8N Rff5 Rd6 R8f6 Rb6+ Ka4 Rd5 Be7 Rc5 Qf7 Kc7 Ne2 Rd2 Nd4 Kd7 Ka3 Re2 Ka4 Rd6 Kb4 Rb6+
b1nn3r/B2r4/1p1N1B2/Nb2KN1R/Nb1Bpn2/nP2QR1B/p7/4nbk1 b - - 0 1 legal: proof: e4 c5 a4 f5 h4 fxe4 d4 cxd4 a5 g5 a6 gxh4 Bf4 b6 Be3 Qc7 Bc1 Qb7 axb7 Bg7 Nh3 Bh6 Ng1 Bf8 Ke2 Kf7 f4 Kf6 g4 h5 c4 e5 c5 d5 c6 a5 g5+ Kf5 g6 Kg4 f5 Kg3 b3 e3 Kd3 Kf2 c7 h3 g7 a4 f6 e2 f7 e1N+ Kd2 a3 Qg4 d3 Kc3 a2 Qc4 d2 Na3 d1N+ Kd2 h2 Qc3 h4 Nc2 d4 Qd3 h3 Bb2 Nc6 b8B Nge7 g8N Nc3 Nb4 Nb5 Ne2 Bd7 c8N Na3 Nd6 Ra7 Nh6 Nc8 Nc3 Nd8 Na4 Bb5 Nhf5 Rd7 Nc6 Be7 Qc3 d3 Na5 Bf8 Qc1 Be7 Kc3 d2 f8B d1B Qg5 Bde2 Ba7 Bec4 Bg2 Bf1 Bg7 Bf8 Bf6 Be7 Rg1 h1N Rd1 h2 Rd5 Bf8 Bh3 Ng3 Ba1 h1B Rg2+ Kf3 Bb2 Nh5 Rh2 Bhg2 Qh6 Kf2 Rd2+ Kg1 Rf2 Re7 Qe3 Ba8 Ba1 e4 Kd4 Reh7 Ke5 Nf4 Bd4 Rb7 Bg4 Be7 Rh5 Rd7 Bh3 Bf8 Nf7 Bc5 N7d6 Bb4 Rf3+
r7/n3B2p/b1PbpR2/1Np2Nn1/KBk1B2r/4Qr1b/RBn1p3/R4q1R b - - 0 1 illegal: No proof kernel
2Q3R1/2RqRpbb/1N1rNk1p/5P1K/pn1n4/2Br1pN1/1Rq1N2B/2r4n b - - 0 1 legal: proof: d4 e5 f4 b5 a4 c5 axb5 cxd4 h4 g5 e3 gxh4 Be2 e4 Bf3 exf3 Kf2 Ke7 c4 a5 g4 d5 b4 d3 c5 a4 g5 d4 f5 d2 e4 h6 c6 h3 Kg3 d3 Kg4 h2 e5 Qa5 e6 Qa6 b6 Qb5 c7 Rh7 g6 Rg7 b7 Ra5 Ne2 Qe5 b5 Qd5 b6 Ra6 Kh5 Kf6 e7 Qd7 Nbc3 Nc6 b8R Nb4 b7 Rd6 Re1 h1N Qc2 d1Q Ng3 d2 Bb2 Qb1 Rc1 d1R Nce2+ R1d4 Ra3 Qa2 Rc3 Rd3 Re1 Qb1 Qc1 Qc2 e8N+ Ke5 Ba1 Ne7 Bb2 Nec6 Rc4+ Nd4 Bc3 Rg8 Ng7 Kf6 Ne6 Rh8 g7 Rg8 Bd2 Rh8 g8R Bg7 Re8 Rf8 Bc3 Rg8 Re7 Rd8 Ra8 Rc6 b8B Ba6 c8N Rd6 Na7 Rc8 Rc7 Rg8 Nf1 Rc6 Rc8 Rb6 Bc7 Bf8 Bb2 Rc3 Kh4 Qd1 Bh2 Rg1 N2f4 Bg7 Re2 Rd6 Ng3 Qd2 Qc2 Rc1 Rg8 Bc4 Rac8 Re3 Rg2 Bf1 Rc5 Qf2 Nc8 Rd3 Nb6 Qe2 Rf2 Bh3 Qc4 Qd2 Bc3 Bg4 Re2 Qd1 Rb2 Bh5 Nfe2 Bg6 Rcc8 Bh7 Kh5 Qd2 Qa6 Qd1 Rc7 Qc2 Qc8
n7/1q1pnP2/b3p2b/BbR2N2/1p4pq/2R1RR1B/K1BQr1r1/B4Nnk b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 Kb2 g5 a4 b5 f4 e6 f6 g3 c5 b3 a5 g2 h5 g4 h6 d3 h7 d2 a6 Qe7 f5 Qd8 f7 Nh6 f6 Qe7 a7 Rg8 h8B Bb7 c6 Na6 c7 Rg5 c8R Re5 Rh5 Ng8 Ra3 Bh6 f8R Nc7 Nf3 g1N Nd4 Ba6 Nf5 Qh7 Rf7 Ne7 Bh3 Kf4 Ka1 b2+ Ka2 Re2 Re3 Rb8 Rff8 Na8 Rcc3 Rg2 Qc2 d1B Nd2 Be2 Nf1 Bd3 Bd2 b1Q+ Ka3 Qb4+ Ka2 Qe4 Be1 Qb7 Qd2 Re2 f7 Rg2 Rfc8 Be2 R8c5 b4 Bh4 Rc8 B4f6 Beb5 Rg5 Ng6 Bd8 Ne7 Bd4 Qh8 Ba5 Qf6 Rg6 Qh4 Rf6 Re2 Rb3 Rc6 Ba1 Rd6 Rbc3 Rd3 Ree5+ Kf3 Re3+ Kf2 Re4 Rg3 Ree3 Nb6 a8B Rg2 R5c4 Qb8 Bd5 Qb7 Be4 Na8 Bb1 Nf3 Be4 Kg1 Rc5 Kh1 Bc2 Ng1 Ng7 Qh5 Rff3 Qh4 Nf5
n3qR1R/Q1p1BBk1/3pb1q1/3b1Nn1/r3Np2/4Br1R/pbK2P1n/3B2R1 b - - 0 1 legal: proof: d4 b5 c4 g5 h4 gxh4 a4 d5 axb5 dxc4 d5 Ba6 d6 exd6 Kd2 Bb7 Ke1 Bc8 Kd2 a5 e4 h5 b4 f5 g4 Kf7 e5 f4 g5 c3+ Kc2 a4 g6+ Kg7 b6 h3 e6 h2 b5 a3 e7 h4 e8R a2 b7 h3 b6 Ra4 Nf3 Nd7 b8R Ngf6 b7 Nb6 Nbd2 Ne4 Nh4 Ng5 Be2 Na8 Bb2 Be6 Ne4 Qc8 Rg1 h1N Bf3 Be7 Qd4+ Bf6 Rf8 h2 Bd1 Qe8 Qa7 Ng3 Rd8 h1B b8B Nf1 Rc8 Kh6 g7 Nh2 g8B Kg7 Bf7 Be5 Rg3 Rh6 Rh3 Rh5 Kd3 c2 Rb1 c1Q Nf5+ Kh7 Ba1 Bb2 Rd8 Qe3+ Kc2 Qd4 Rc1 Qg7 Rb1 Qg6 Rc8 Ba3 Bf6 Bb2 Be7 Rh6 Qb7 Bg2 Ba7 Rh4 Be3 Rh5 Nc5 Bgd5 Qa7 Rh6 Ne4 Rh4 Bh5 Rg4 Rg1 Rg3 Nh4 Kg7 Bd1 Rf3 Rh8 Qd7 Rcf8 Qe8 Nf5+
nrq1B1K1/1p1pR3/1pB1rRb1/bP1p1nR1/2NN4/b4qq1/4B3/QB4Rk b - - 0 1 illegal: No proof kernel forced: wxLB
2KR1Nb1/Q7/2NpPRB1/3b1Br1/3B2r1/2b1q1p1/N1ppn1kn/Nn3B1b b - - 0 1 illegal: No possible last move
1QRNn3/1p3q1R/pprB2R1/3k1B2/1B1bb2p/1Nnb1rb1/2BP1r2/1R2K3 b - - 0 1 illegal: No proof kernel
b3R2b/P1r1bN2/1p2B3/2k2np1/q1r1Rp1N/B2N3K/r1B2pB1/r3nN1Q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 Ke7 Kg2 f5 e4 g5 c4 d5 a4 b6 h4 b3 a5 d4 c6 Kd6 c7 g3 h5 b2 h6 d3 a6 d2 h7 f3+ Kh3 f2 e5+ Kc5 e6 Qe8 e7 Nc6 Ra4 Qd7 e8B Nb4 Nf3 Kc6 c5 g2 Bg6 g1B Bg2 Bb7 c8B Bh2 Re1 Nc2 Re8 Nh6 Qh1 d1R Nbd2 b1R Nf1 Ne1 Nh4+ Rd5 Rb4 Ra1 a7 Be5 Ba3 f4+ Re6+ Bfd6 Rc4 Kb5 c6 Rd2 c7 Rda2 Bc2 Nf5 Re4 Re8 h8N Re7 Nf7 Bh8 R6e5+ Bc5 Re6 Rb8 R6e5 Ba8 Re6 Qd4 Bd7+ Kc4 c8N Rb7 R6e5 Re6 Ne7 Rc7 Nd5 Rec6 Re8 Be7 Bc8 Kb5 Bd7 Qa4 Be6 Rc4 Nb4 Kc5 Nd3+
Bn4R1/1K6/p2Bpp2/1N4qb/2k1R3/2q1rbN1/PBb3Qp/1nrBb1RR b - - 0 1 legal: proof: f4 c5 e4 g5 h4 gxh4 b4 d6 e5 dxe5 bxc5 exf4 Rh2 f3 Rh3 Be6 Rh1 Bc8 Kf2 Kd7 Ke3 Kc6 Ke4 h5 c4 b5 d4 h3 g4 h4 g5 f2 g6 f6 g7 h2 Bb2 b4 Bg2 f1Q Qe2 h3 Na3 a6 Nb5 b3 Qd2 Bd7 Ne2 Qa5 Ng3 Qg1 Rd1 Bg4 d5+ Kd7 d6 Kc6 d7 Qc3 d8B Bh5 Bf3 e6 Bc7 Rh7 Bd6 Ne7 g8R Nd5 Qg2 Raa7 Rd4 Rac7 Bd1 Bh6 Rg7 Bd2 Rg6 Be1 Rg5 Kb7 c6+ Kb6 c5+ Ka5 Rc4 Rc8 c7 Rhh8 Bc1 b2 c6 Rh6 Rg8 Qc5 Rg1 h1B Rb4 h2 Rd4 Re8 c8B Kb6 Bd7 Rc8 c7 Ka5 Bc6 b1B+ Bc2 Rh8 Ba8 Rh7 Rd1 Kb4 Bb2 Kc4 Rc1 Rd8 c8R Rc7 Rg4 Rh8 Rcg8 Rh6 Rf4 Rg6 Nf5 Rg3 Rh4 Rd3 Bd1 Bc2 Ng3 Qb3 Ra1 Nc3+ Kf4 Nb1 Ke4 Qg5 Rg4 Rc5 Rf4 Kb4 Rg4 Rf3+ Kd4 Re3 Re4 Qa3 Qf2 B1f3 Qg2 Qa5 Bc7 Bd2 Bd6 Bb3 Be2 Na3 Rgd1 Qc7 Rac1 Nb1 Rh1 Qc6 Rcg1 Be1 Bd1 Qc7 Bf4 Rc1 Be5 Qa5 Bc7 Bc2 Be5 Ka4 Kc5+ Qb4+ Kb6 Qc4 Ba1 Kb4 Kb7 Kc5 Bab2 Qc3 Bd6+ Kd5 Re5+ Kc4+ Re4+
K1B2b1R/1B1r1PpR/k6B/qnb1n1p1/1pq1N2p/rQ2R1N1/3RB3/3b1b2 b - - 0 1 illegal: No possible last move, all moves rejected
N1rk1K1N/B1P1p2b/2r1R1pQ/N1p2Bb1/B7/Nb2q3/R1n2qnp/6bB b - - 0 1 illegal: No possible last move, all moves rejected
2BB2n1/bpN4K/nR4Rn/1p1q1prp/1rRk4/Q4P2/1B2r2q/BRN2q2 b - - 0 1 legal: proof: c4 g5 e4 d5 b4 dxc4 d4 a6 h4 gxh4 d5 Qd6 b5 Qd8 d6 axb5 Nf3 Be6 Ng1 Bd5 exd5 Qd7 Qe2 Qc8 Qd1 Qd8 Ke2 Kd7 Ke3 c5 Ke4 e5 Kf5 h5 a4 f6 Kg6 c3 g4 h3 f3 h2 g5 e4 a5 c2 a6 e3 a7 e2 Qd3 e1Q Ne2 c4 Nbc3 Rh7 Ra6 Re7 Rb6 Qd2 Bb2 Na6 Nc1 Re2 Kh7 f5 g6 Bh6 g7 Be3 Ba1 Rc8 a8R Rc5 Rg1 h1N Rc8 Nf2 Rh1 Ng4 Rc7+ Ke8 d7+ Ke7 d6+ Ke6 Nd5 N4h6 Qa3 c3 Rc8 Ke5 Nc7 Qh4 d8B Kd4 d7 Qh2 Bf6+ Re5 d8B Rg2 Rb8 Rg5 Rc8 Qd3 Be2 Qc4 Bd3 Qd5 Bc4 Bg1 Nd3 Be3 Rb1 c1Q Bb3 Qf1 Nc1 Qd7 Be6 Qd5 Rb2 c2 Rb1+ Kc4 Bb2 Bf2 Ba1 Re2 Bfb2 Bc5 Nd3 c1R Bd7 Rc3 Nc1 Rb3 Be6 Ne7 g8R Rb4 Rg6 Neg8 Ra8 Bg1 Bc8 Nb8 Raa6 Bf2 Rbc6+ Bc5 Rab6 Na6 Rce6 Bd4 Re3 Bc5 Rc3+ Kd4 Rbe6 Ba7 Ref6 Qc4 Rb6 Qd5 Rc4+
r5nN/R2q2k1/1B1bQq2/2bN1p2/1R1bq1p1/R4p1B/1R2NPp1/4KbNn b - - 0 1 illegal: No proof kernel
Kb1rbN2/1p1B3p/1Rq3Nn/B4n1Q/pPN3R1/n2b4/n2q1RpR/3k1N2 b - - 0 1 illegal: No proof kernel
n4k1n/1BBn2pQ/1b1RbR2/2b2BK1/2R3Np/B4p2/1N1p1Pnb/3rr1R1 b - - 0 1 illegal: No proof kernel
1N4Kn/B1Q1ppPR/p7/R5R1/1rpqRnq1/1BB1b3/1r2p1b1/k1bN2B1 b - - 0 1 illegal: No proof kernel
n2N4/1RRQ2p1/2p1n2p/kPppqBB1/3bbr2/b1R5/2N1r1bK/1NR1N3 b - - 0 1 illegal: No proof kernel
2N1K1N1/p1ppB2n/3qbr2/p1B5/4q3/pBPQ3N/bkRN1RB1/2b2qr1 b - - 0 1 illegal: Other
qB4N1/B3p1kp/N4pbp/5PpB/R1p2RK1/2Bq1QR1/R2rr1nr/4b3 b - - 0 1 illegal: Other
1B3bN1/rpK5/2p1NB2/2P2ppr/3p1n2/1p1nQ2R/B2Bbkb1/1N3rNR b - - 0 1 illegal: No proof kernel
1K1N4/2rRBq2/r1q4R/1Rr1bR1p/b5r1/k5r1/2B2BP1/1rRQ1bQ1 b - - 0 1 legal: proof: d4 a5 b4 c5 f4 cxd4 a3 e5 a4 b5 axb5 exf4 Qd2 a4 Qd3 Ba6 Qd1 Bc8 h3 g5 Qd3 Nf6 Nc3 Ng4 hxg4 Nc6 Qd1 Na5 bxa5 f3 Nd5 Rb8 Nf4 gxf4 g5 Ra8 Kd2 Ke7 Kd3 Kd6 Kc4 f5 e4 d3 b6 f2 Kb5 h6 c4 d2 b7 a3 b8B+ Qc7 g6 a2 g7 f3 g8R f4 a6 Rh7 a7 Bg7 Rb1 a1R Rd8 Be5 Nh3 Ra6 Bd3 f1R Bc2 f2 Ng5 f3 Ne6 Re1 Rf8 f1Q Rf5 f2 Nd8 Re3 Bb2 Rf3 Bd4 Rg3 Rb3 Rhg7 Rd3 R7g4 c5+ Ke7 c6 d5 Be3 d4 Rh3 Qd6 c7 Bb7 c8R h5 Rh4 Qe6 Bd6+ Kd7 Rc3 Rc8 a8Q Rc7 Qa7 Bc6+ Kc5 Qg6 Be7 Ba4+ Kd5 Qb6 Rc5 Qh6 Rb5 Qf6 Rc3 d3 Rh1 Qg6 Rc6 Qf7+ Kc5 Qe1 Qb6 f1B Bf2 Qe2 Rg1 Qf3 Rh1 Bb2 e5 Bc3 Qb1 d1R Qa7 Re1 Qd1 d2 Qb6 Ree4 Rg1 Rg5 Qa7 Reg4 e6+ Ke8 Kd6 Bb2 Qe2 d1R+ Qd3 Rb1 Qd1 Rg7 Rcb6 Rc5 Rc6 Qe4 Kc7 Be5+ Kc8 Rh7 Rc7 Qc6 Kb8 Rd5 Qad4 Rc5 Rh1 Bc4 Qg1 Bf1 Qd1 Rhg7 Bd6 Rh7 e7 Rhg7 Rcb7 Rh7 R7b6 Kd7 e8R Rhg7 Nb7 Rh7 Rd8+ Ke6 Rd7 Rhg7 Bd3 Kd5 Bc2+ Kc4 Nd8 Kc3 Bb3 Kb2 Bc2+ Bb3 Rg5 Ka3 Rf5 Bf6 Be7 Ba4 Rd6 Be5 Rb7 Ra7 Rd7 Rc7 Rh6 R7g6 Qd4 Qe4 Qd2 Ra6 Qd1 Qc6 Qh2 Bb2 Qd4 Bd3 Rc1 Bf1 Qd1 Be5 Qg1
nN1qQ3/3n2nN/2Rb2B1/1q1Q2bN/PBBK1bn1/p7/b3BBk1/3n4 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 b4 e5 Na3 exf4 Qc2 a5 Qb3 Ra6 Qd1 Rc6 Nb1 Rc3 Rh2 Rd3 Rh1 Rb3 axb3 h5 Ra4 Rh6 Ra2 a4 Ra3 Rg6 Ra1 a3 Ra2 Rb6 Rc2 Ra6 Rc4 Ra4 bxa4 bxc4 Kf2 Kd7 e4 Kd6 g4 Ke5 g5 f5 d6 c5 b5 c3 d3 h3 b6 h4 g6 c4 b7 f3 Ke3 f4+ Kf2 h2 g7 h3 d7 c2 Bd2 c1B Qe1 c3 Be2 c2 Be3 Bd6 Nc3 Nf6 g8B Na6 b8N Nc7 Bc4 Na8 Nd5 Bd2 Bc5 c1B Bb4 Kd4 e5 Bb7 Nb6 Bd5 e6 Ke5 d4+ Ke4 e7 Be3+ Kf1 f2 Nf3 Bed2 Rg1 h1N e8B h2 Rg6 Ng3+ Kg2 f1N Kf2 Bf7 d5 Ne3 Qd1 Ngf5 Ng5+ Ke5 Kf3 h1N Nh7 Nf2 Rh6 Be6 Bg6 Ng7 Qb3 Nfd1 Qa2 Bf8 d6 Neg4 Nd5 Be3 Ne7 Bf7 Nf5 Bg8 Ng3 Be7 Kg2 f3+ Kf1 f2 Nh5 Be6 Kg2 Kd4 Kf3 Bg5 Qb3 Bcf4 Qa2 Qb6 d8Q Nd7 Qe8 Qd8 Qb3 Nc5 d7 Bed6 Be1 f1Q+ Bf2+ Ke5 Qb7 Qe1 Qc6 Qb4 Qb7 Qb5 Qc6 Qe7 d8B Nd7 Ba5 Qd8 Bb4 Qc5 Bf1 Qb5 Ke2 Bge7 Kd3 Beg5 Bf7 Kf5 Kd4 Bd5 Bce2 Ba2 Qb7 Nge5 Bec4 Kg4 Bfe2+ Kh3 Qd5 Ng4 Re6 Kh2 Bg6 Kh3 Qe5 Kg2 Qc5 Bde7 Rc6 Bed6 Qd5+
3R3q/p1nbBK1k/QQ5N/2q5/4RQ1Q/3q1rp1/1PqRn2n/Q3b1N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 b6 d5 cxd5 Bc5 Nf3 Bd6 Ng1 Bf8 b7 c5 bxa8Q c4 Na3 c3 Bh3 c2 Bg2 Rh6 Bf1 Rh8 Bg2 Ne7 Be4 Ng8 Bf5 Bb4 Bd3 Bf8 Bc4 Rh7 Ba2 Rh8 Bb1 cxb1Q Kf2 f5 e4 Kf7 d4 Kg6 h4 f3 Ke3 f2 Kf4 f1Q+ Ke5 f4 h5+ Kh7 d6 g5 d7 f3 Ke6 f2 e5 g3 d5 g2 d6 g4 h6 g3 Qb7 Qg5 Rh2 Qg7 Nc2 Be7 Qa6 Bg5 Ne3 Nc6 Nf5 Bb7 d8Q Qb5 d7 f1N Qdb6 Qc2 d8R Bd2 Ra4 Nge7 Re4 Be1 Bg5 Qbd3 Qda1 Rf8 Bh4 Nd5 Be7 Kg6 h7 Qh8 Nh6 Rf3 Nh3 g1Q Rd2 Qgc5 Ng1 Qg7 h8Q Nh2 Qf8 Qh8 Qf4 Kh7 Kf7 Nd4 e6 Bc8 Bh4 Re3 e7 Ne2 e8Q Nc7 Be7 Rf3 Qea4 Bd7 Qd4 Qe3 Qdf6 Qed3 Q6h4
b1N2b2/B1Kn2Q1/bPRp2qN/2p1Q1p1/kp1Nr3/2N2R2/N3Q3/q6r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Nf6 c4 Rg8 c5 Nc6 Bb5 Na7 c6 Rh8 c7 Ng8 Bc6 Nb5 axb5 bxc6 Kd2 g5 Kd3 e5 Ke4 d3 h4 d6 f4 Kd7 h6 d2 f6 Qe7 f5 Qe8 f7 Ba6 c8N Bg7 f8Q Qd8 h5 Bf6 h7 Ne7 h6 Ra7 Rh3 Qe8 Qg7 Bb7 Ra6 Qg6 Nc3 Rd8 h8Q Ba8 h7 Re8 Qe2 d1B Na2 Bb3 Bf4 Bc4 Be3 Rc7 Ba7 c5+ Rc6 Rb7 b6 Ba6 Qgg8 Nd5 Rf3 Be7 Qhg7 Rb8 h8N Rb7 Qf6 Bf8 Nf7 Re7 Nh6 Re6 Qfh8 Nf6+ Ke3 e4 Qgh7+ Ke8 Q7g7 Nd7 f6 Rc7 f7+ Kd8 Kf2 e3+ Kg3 Rb7 Kg4 Re8 Qe5 Re7 Qhg7 Re6 Qf2 e2 Qg2 e1Q Ne2 Re7 Nec3 Qa1 Qge2 Re8 Q5e3 Re4+ Qf4 Be7 f8N Ke8 Ne6 Bf8 Nd4 Rc7 Ne7 Kd8 Neg8 Kc8 Ne7+ Kb7 Nc8 Bc4 Kg3 Ka6 Qfe5 Ka5 Kg2 Ba6 Kf2 Rh4 Kg3 Rh1 Kg4 Qe8 Kf5 Rb7 Ke4 Qg6+ Kd5 Rb8 Ne7 Re8 Nc8 Qd3 Qg3 Re4 Q3e5 Qdb1 Ke6 Qc2 Kf7 Qd3 Ke8 Qc2 Kd8 Qcb1 Nd1 Ka4 Ndc3+ Ka3 Nf7 Rg4 Nc1 Qg6 Kc7 Rgh4 Nh6 Re4 Nb1+ Ka4 Na2 Rg1 Kd8 Re1 Kc7 Rh1 Nbc3+
k1n5/QN6/1pr1R1r1/q1pB3q/1RnRB1R1/QR3Q2/Kp1bP2p/7n b - - 0 1 illegal: No possible last move, all moves rejected
K3NN2/QN3B1Q/3q2rN/1N1r2n1/P2r2Rn/B7/4Qqq1/krn1brb1 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 a4 h5 Ra2 f5 Rc2 Be6 Rc6 Bd7 Rg6 f4 Rg5 Bf5 gxf5 Ra5 Rg6 Ra8 Rg4 hxg4 Kf2 Kd7 e4 Kd6 h4 Kc5 e5 Kd4 h5 c5 d3 b5 f6 g5 h6 c4 f7 c3 d6 g3+ Ke1 f2+ Ke2 c2 Kf3 g4+ Ke2 b3 h7 g2 d7 g3 Kf3 b4 e6 b2 e7 b3 e8N Bb4 f8Q Nc6 Nh3 g1Q Be2 f1Q+ Nf2 g2 Na3 Kc3 Ke4 b1R Kd5 b2 d4 f3 Qg7 Nh6 Rh4 Ne5 Bc4 Ra6 Rg4 Ng6 Qe2 Nh4 Bb3 Qb8 d8N Rg6 Ne6 Nf7 Kc6 Ng5 Qa7 Qd6+ Kb7 Ra1 d5 b1R Nf8 Qh1 Ne6 g1B Nf8 Qhg2 Ka8 Rhg8 h8Q+ R8g7 Nd3 f2 Ne5 Rd7 Qh7 Qe1 Nf7 f1R Ba2 Qef2 Nh6 Ba5 Bc4 Rb4 Ba2 Rab1 Bb3 Rd4 Nb5+ Kb4 Nbc7 Kc3 Ba3 c1N Bc4 Rd2 Nb5+ Kc2 Bb4 Kb2 Ba3+ Ka1 Bb3 Ngf3 Ba2 Rd4 Bb3 Qc7 d6 Be1 Bf7 Rd5 Qe4 Ng5 Qe2 Re7 d7 Qd6 d8N Re4 Nb7 Reb4 Qd2 Rbd4 Qe2
B3rR1R/b3br2/2Pb1NRn/5n2/b2Q3N/1bR1r1qR/7Q/Kn1Qb1k1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Kd2 a5 Kc1 d5 c4 Kd7 b4 Kd6 Kb2 Ke5 h4 Ke4 f6 Ke3 c5 Kf2 f7 e5 b6 a4 h5 f3 b5 d3 h6 d4 h7 d2 g7 d3 b7 e4 b6 g4 Bh3 a3+ Ka2 e3 Bf1 e2 Qb3 d1N Qc4 e1B Qa4 g3 Bg2 d2 Qc6 Qd3 Rh3 Nc3+ Kb3 d1B+ Kb4 a2 Qd6 Bd7 Nd2 Be7 f8R Ra3 Rc1 Nh6 g8R a1B Rg6 Nb1 Rc3 Bb3 Qd4+ Qe3 Bh1 g2 Ne4+ Kf1 Qd1 f2 Nf3 g1B Nf6 Bda4 Nh4 Qg3 Qd4 Rg8 h8R Bh2 Bg2+ Kg1 Qd1 f1R Be4 Nd7 b8Q Nf5 b7 Ne5 Qbd8 Ng4 b8Q Ngh6 Ba8 Bb2 Qe5 Bc1 Q8d4+ Be3 Qed6 Rf2 c6 Rf3 Qe5 Ba7 Qed4+ Re3 Rf7 Re8 Rff8 Bd8 Q6e5 Ra2 Qed6 Rf2 Qc7 Be7+ Qcd6 Nd2 Ka3 Rff3 Kb2 Nb1 Ka1 Qg5 Ne4 Ng7 Ng3 Rf7 Q6f4 Ngf5 Ne4 Bg3 Nf6 Qg4 Qfe4 Bgd6 Qec2 Qg3 Qh2+
1bKBBkr1/Q7/nN1b1Rrb/2R4b/Bn1B4/2P5/3n1Bqn/1Q1qn2Q b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 Qb6 Nd2 Qd8 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Nh6 Ng4 hxg4 Bd2 Ng8 Be3 Bg7 Bc1 Bf8 Kf2 a5 b4 e5 h4 d5 c3 d3 h5 e4 b6 a4 g6 d2 b7 d4 g7 a3 b5 f3 Kg3 a2 Kf4 f2 Ke5 e3 f6 g3 h6 g2 h7 d3 b6 e2 Rh6 e1N Nf3 Ne7 g8B g1B Bb3 Rg8 h8B Na6 b8Q Bg4 b7 Nd5 Qa7 Ndb4 b8Q Bh5 Ke6 Bd6 f7+ Kf8 Ba4 Bgh2 Rf6 Rg6 Ne5 Bf4 Bh3 f1N Nc4 Nh2 Nb6 Bfe5 Qf3 d1Q Be3 d2 Bf2 Bf4 Rb1 a1B Qh1 Bb2 Bg2 Bc1 Bgc6 Qc2 Be8 d1N Qbb7 Ne3 Rb2 Qb8 Kd7 Qd1 Re2 Nef1 Re5 Bh6 Rc5 Bcf4 Qbe4 Nd2 Qb1 Qg4+ Re6 Qh3 Bhd4 Qg2 Rf6 Qbb7+ Rc7 Qbf3 Rc5 Bb8 Kd8 Qd1 Kc8 Kg7 f8B+ Kg8 Qd7 Bfd6 Be7 Kg7 Bd8+ Kg8 Re6 Kf8 Qb7 Ra7 Qa8 Rag7 Qa7 Rg8 Rf6+
2n1Rnrb/bRnr2q1/1k5b/n5Rq/1q1NB1N1/1RR2Q2/K3Pb2/6QN b - - 0 1 illegal: No possible last move, all moves rejected
N1K1NB2/r3bk2/2N1B1N1/1P4B1/3r3n/rr1n1n1N/Qq1nq2b/R1Q1b3 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 b4 f5 Bh6 Bb7 Ra6 Be4 Bc1 h5 Rg6 f4 Rg5 Bf5 gxf5 Bd6 Rg2 Bf8 Rg4 hxg4 Kd2 g5 Kd3 d5 h4 a5 e4 a4 c4 g3 e5 g4 h5 a3 h6 f2 h7 a2 c5 a1R f6 f3 b6 g2 b7 g3 b5 Nd7 b8B Be7 e6 R1a7 c6 Ne5+ Kc2 d3+ Kc3 d2 Kd4 Nd3 c7 Nh6 Qa4 d1R Nh3 g1B c8N g2 Nc3 Bh2 Bd6 g1B f7+ Kf8 Bg2 f1N+ Be3 f2 Bg5 Bg3 Nb6 B1h2 Ne2 Nd2 Qa2 f1N Bc5 Kg7 f8N Be1 Ng6 Qc7 Bd6 Qc1 Be4 Rhc8 Bf5 Rc3 Bb4 Raa3 Bc5 R8a6 Na8 Rcb3 Bd6 Ra7 Rg1 Nf4 Ke5 d4 Bg4 d3 Nd4 Qb1 Nc6 Nf5 Bc5 Nh4 Bb4 Bf8 e7 Ndf3+ Kd6 d2 h8Q+ Kf7 Qha1 Qb2 Qc1 Nd3+ Rg3 R7a6 Kc7 R6a5 e8N Be7 Kc8 Ra7 Qc2 Ra1 Bd7 d1Q Qc1 N1d2 Rg1 Qe2 Bd6 Bd8 Bf8 Be7 Qc2 Rc1 Qd1 Rc2 Qc1 Rc4 Bf5 Rd4 Rh1 Kg8 Be6+ Kh7 Nd6 Beg3 Qc4 Bf2 Ra1 Be1 Ngf4 Kh8 Ne8 Kh7 Qc1 Kh8 Bg4 Kg8 Ng6 Kf7 Be6+
2kQQ3/1bnn1BRK/1PRq1rn1/q2Q3n/8/2bQN3/BQ2Bq2/br3q2 b - - 0 1 illegal: No possible last move, all moves rejected
2k1N3/1PnbQN2/B3n1N1/n2bb1B1/Nnr2qB1/2Q1r1R1/6bN/Kn5n b - - 0 1 illegal: No possible last move, all moves rejected
1B1R1N2/1rP5/R1Qrnr1R/q2Bbq2/1q3r1n/r1r1k3/rR3QR1/4KQ2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ke1 h5 Nc3 f4 Nd5 Bb7 Ne3 Bd5 Bg2 Be4 Bf1 Bf5 gxf5 Bc5 Ng4 hxg4 Bg2 Be7 Bf1 Bf8 e4 Ke7 b4 Kf6 c4 Ke5 h4 g5 b6 a5 h5 d5 b5 g3 h6 d3 b7 Kd4 b6 g2 e5 g4 f6 a4 e6 d2+ Kf2 a3 h7 a2 f7 Nc6 b8R Ra3 c5 Nge7 b7 Bg7 f8Q Nf5 e7 Be5 e8Q Qa5 Qg6 Nh4 Bc4 Nd8 c6 Ne6 Qc8 Rf8 h8R Rf6 Qdc2 d1R c7 Rdd3 Ra8 Rdc3 b8R g3+ Ke1 f2+ Kd1 f1R+ Ke2 f3+ Kd2 f2 Nh3 g1R Rb2 g2 Rh2 Rh1 Rd8 g1Q Nf4 Qg4 Rg2 Rhh3 Rab1 a1R Ra6 R1a2 Qf7 Rhf3 Ng6 R3f4 Qa8 Re1 Ra1 f1Q Nf8 Qf5 Bb3 Qfb5 Qc6 Qbb4 Rb6 Rh1 Ra6 Rhh3 Ke1 Rhd3 Be3+ Ke4 Qb5 d4 Bg1 Kf3 Qg6 Rd2 Qf1+ Rf2 Bd5+ Ke3 Qe8 d3 Qc6 Rfc4 Bh2 Rff4 Rd1 Rc5 Rdd2 Rb5 Bg1+ Rf2 Rg6 Rb8 Rh6 Rb7 Bh2 Rf4 Rg2 d2+ Kd1 Rf3 Bg1+ Kf4 Ke2 d1R Ba7 Rd4 Ke1 Ke3 Bb8 Rff4 Bf3 Rd7 Bd5 Rd6 Qcf2+
3R3r/R2Q1nR1/1r2nQq1/2q1q1r1/Kn1nR2B/2Nk1P1N/bR2q3/N6q b - - 0 1 legal: proof: g4 f5 a4 b5 axb5 h5 d4 hxg4 d5 e6 e3 Bd6 Bh3 Bf4 exf4 c6 Bg2 cxd5 Bf3 d4 Be4 fxe4 Kd2 Ke7 c4 Kd6 Kc2 Kc5 Kb3 a5 h4 g5 h5 d5 f3 e5 f5 e3 f6 d3 h6 Kd4 c5 a4+ Kb4 a3 b3 a2 c6 e4 h7 e2 b6 e1Q+ Kb5 e3 b7 g3 f7 e2 f8R g4 c7 g2 b4 g3 Nc3 d2 Ne4 Qe8+ Kb6 Qg6+ Kb5 Nh6 Rb1 a1N Rf5 Kd3 Rh3 d4 Rf7 Nc2 Ra1 Nc6 b8N Ra6 Nc3 Rb6+ Ka4 Be6 c8R Nd8 b5 Ba2 Rg7 Nb4 Na6 Ne6 Rh4 Nf7 Nh3 g1Q Rd8 g2 Re4 Qh1 Bb2 g1R Ba3 Rg5 Nc5+ Kc4 Nb3 Kd3 Bb2 Qg3 Bc1 e1N Bb2 Nec2 Bc1 Re8 h8Q Qe5 Qh6 Rh8 Bb2 Rc6 b6 Rd6 b7 Rb6 b8R Qc5 Qg1 d1Q Qg4 Qde1 Rb7 Qe3 Rb1 Qf4 Na1 Qfe5 Ba3 Kd2 Rb3 d3 Ra7 Ncd4 Rb1 Qgf5 Qf6 Qg6 Rf4 Ke3 Rb2 d2 Re4+ Kd3 Qgf5 Qeh2 Qd5 Qe5 Qd7 d1Q+ Nc2 Qe2 Na1 Nc2 Bb4 Rb7 Ba5 Nb4 Bc7 Rb6 Bb8 Qed5 Bg3 Qe5 Bh4
1rb1nkRN/Rp1n2r1/6n1/4R3/1bBR1r1q/bB1KRn2/Q3nP2/1Q2B3 b - - 0 1 illegal: No possible last move, all moves rejected
b1Q2r1B/rQ1r3N/2RR4/Q1pnnk1q/P4RN1/2nr3q/2Kb3r/3R3R b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f6 Be2 f5 exf5 gxf4 g5 Nd7 Bf3 Nb8 Bg4 hxg4 d4 Kd7 Kd2 e5 a4 c5 h4 b5 h5 g3 f6 b3 f7 b4 d6 Ke6 h6 e4 d5+ Kf5 h7 e3+ Kd3 e2 g6 e1Q d7 g2 g7 b2 d6 f3 Rh5+ Qg5 d8R b3 d7 f2 Be3 f1R Rh1 Nc6 Bd4 Nf6 g8R Qe6 Nh3 g1R Nd2 b1R Nf3 b2 Nh2 Bh6 f8R Bb7 Qb3 Ne5+ Kc2 Ra7 Ng4 Rbd1 Rg6 Rd3 Rd1 Qh5 Ng5 Ba8 Qb7 b1N Rf7 Rf8 h8Q Nc3 Nh7 Bd2 Rc8 Rf4 d8Q Rf2 Qa5 Rh2 Rc6 Rf1 Rh6 Rd8 Qe8 Rd7 Qec8 Rff2 Rg7 Nfd5 Rf7+ Qf6 Rf8 Qff7 Rhd6 Qh3 Rd8 Qfh5 Rf8+ Nf7 Bf6 Ne5 Bh8+ Ke4 Rd8 Rf8 Re8 Kf5 Re7 Nc4 Re4 Ne5 Rf4+
1b1Brb2/1BQ4r/3Qpq2/Qn1nn2b/2q2R2/1P2b1Nb/3k3B/KR1B2B1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 f4 Nh6 g4 Ng8 Na3 h6 Nc4 gxf4 g5 h5 Ne5 Rh6 Ng4 hxg4 Ra5 Rh5 Ra1 Rh8 d4 Kd7 Kd2 Kd6 Kc3 c5 h4 a5 g6 a4 h5 f3 b6 c4 b3 f2 Kb2 c3+ Kb1 e3 h6 g3 b7 a3 g7 c2+ Ka2 e2 h7 e1N Bh3 f1B Qd3 g2 Be3 c1Q Bg4 Be2 Rh4 Na6 b8Q+ Nc7 Rb1 Nf3 Ka1 Nf6 g8B a2 Qc2 Bd1 Ne2 g1B Ng3 Ne5 Qb5 Bd7 Qa5 Nb5 Be2 Bc8 Rf4 Bh3 Qg6 Bh2 Bg1 Qc4 Be6 Qb6 Bc8 e6 Bb7 Re8 Qc2 Qd8 Bf3 Ne4 Qcd2 Nec3 Qc1 Qf6 Bh5 Bc2 Bd1 Bg6 Qc2 Bh5 Qd2 Rg8 h8B Rg7 Qc2 Rh7 Bg7 Ke7 d6+ Kf7 d7 Nd5 Qcd2 Kg6 d8Q Kg5 Qb8 Nbc3 Qbc7 Nb5 Kb2 a1B+ Ka2 Ne7 d5 Bd4 d6 Nd5 d7 Be3 d8B Qc3 Ra4 Qc4 Ka1 Kf4 Qdb4 Na3 Qbd6 Nb5 Nh1 Ke4 Rb4 Bhf4 Ng3+ Kd3 Bh6 Ba7 Bh2 Bb8 Bg5 Bd2 Be3 Kc3 Beg1 Be3 Qda6 Kd2 Qad6 Qc5 Rf4+ Qb4 Qa8 Qc4 Qaa5+
1br4r/1PQq2Rq/1Rq1k2B/QnN5/1K1Rb1N1/1p2n2q/q3b3/1RR3Q1 b - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 g5 e4 f5 h4 gxh4 a3 Kf7 Bc4 Ke8 a4 bxa4 Bb3 axb3 exf5 Ba6 Ra5 Bb7 Ra1 Bc8 f4 Kd7 g4 h5 d4 a5 Kd2 c5 Kc3 e5 f6 h3 f7 c4 g5 h4 f5 a4 b5 h2 d6 a3 b6 a2 g6 h3 d5 e4 b7 e3 g7 e2 f6 e1Q+ Nd2 Qe3+ Kb4 c3 Ne4 c2 Nf3 Ne7 g8R Nf5 Rb1 a1Q Qg1 Qa2 Rg7 Qh6 Bf4 Qh7 Bh6 Ne3 Rc1 Be7 f8R Qe8 Rb1 c1Q f7 Qc6 Rfg8 Bg5 f8R+ Qe7 Rf6 Bf4 Rg4 Qd8 R8g7+ Qe7 Qf1 Be5 Rhg1 h1B Nh2 Bf3 Rh4 Be2 Ng4 h2 Qg2 h1Q Rgc1 Qh3 Qg1 Ke8 Rfg6 Bf5 Nc5 Be4 d7+ Kf8 d8Q+ Qee8 Qa5 Qed7 Rg8+ Kf7 d6 Bh2 Kc3 Na6 R8g7+ Ke8 Rf6 Nc7 Kb4 Rc8 Rfg6 Nb5 Re6+ Qe7 d7+ Kf8 Reg6 Bb8 d8Q+ Qee8 Qdc7 Qed7 Rh5 Ke8 Rd5 Kf8 Rd4 Ke8 Rg8+ Ke7 Rgd6 Qd5 Rb6 Qc6 Na6 Kf7 Rg7+ Ke6 Nc5+
3kq1rr/B2qr3/6nB/Rnq2N1B/4nBr1/N3pQP1/K2B2N1/4b1bQ b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 b4 Bb7 h3 Bd5 f5 Bf7 Ra3 Bh5 Rf3 Bg4 Rf4 gxf4 hxg4 Qc7 Be3 Qc8 Bc1 Qd8 Kd2 d5 c4 e5 Kc2 h5 Kb3 a5 g5 h4 f6 f3 g6 d3 b6 a4+ Ka3 f2 b7 d4 g3 h3 g7 h2 c5 d2 b5 d3 b6 e3 Qc2 d1R Qb3 e2 Nd2 e1B Bg2 f1N Nc4 e4 Bf3 d2 Ka2 a3 c6 Bc5 c7 Nc6 c8N Na7 b8B Nb5 b7 Ne7 Bf4 Ng6 Ne2 Bg1 b8B e3 g8Q+ Kd7 f7 Qe8 f8B Kd8 Qf7 Rh4 Qc3 Rg4 Ne7 Ra7 Nf5 Re7 Bb2 Rc1 B8h6 d1Q Qh8 Qd7 Ba7 Nd2 Bc3 Ne4 Bd2 Rb1 Qff8 Rb4 Qff6 Rg5 Bh5 Rg4 Ka1 a2 Na3 Rc4 Kb2 a1Q+ Kb3 Qc1 Ka2 Rc8 Qc6 Ned6 Qf3 Qc5 Qa1 Bgf2 Rf1 h1R Qb1 Bg1 Qbe4 Bef2 Ra1 Rhh4 Qh1 Be1 Qef3 Rb8 Ned4 Rh3 Nh4 Ne4 Ng2 Nh8 Bf7 Ng6 Nf5 Rhh4 Bf8 Rh8 B8h6 Nh4 Bh5 Ng6 Rd1 Rg8 Ra1 Rgg7 Bd6 Kc8 Nc4 Qf8 Kb1 Rh7 Ra5 Rh8 Bdf4 Qf7 Ne5 Kc7 Kb2 Rbg8 Nc4+ Kd8 Na3 Qfe8 Ka2
2B1B1r1/r2R2Q1/5br1/q2Qqr2/B4pk1/B1N2b1B/q3nbPn/1R1KR3 b - - 0 1 illegal: No possible last move
r1Q5/4bR2/1Kpr2Pq/rB3bB1/1n1n1NQ1/q1NQ1rB1/1B6/k1qnB3 b - - 0 1 illegal: No possible last move
2r2B1R/2BB1n1K/1P1q1kN1/1nb5/2R2rrp/1Q1rB3/R2QqBb1/4n1b1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Na3 exf4 Nc2 Qd6 axb5 Qd7 b6 Qd6 b5 Qd8 Nb4 axb4 Kf2 Ke7 Kf3 f5 g4 c5 d4 h5 e4 c4 e5 h3 b7 c3 b6 h4 g5 h2 e6 c2 g6 b3 g7 b2 d6+ Kf6 d7 b1N e7 Nc6 e8Q Ra3+ Be3 c1B b8B Nc3 d5 Bc5 d6 Nb4 Bb5 Nd3 Qb3 Nh6 g8R Nf7 Ra2 Bb7+ Qe4 Qe7 d8B Ra4 Be8 Nb5 d7 Bc6 Bdc7 Qd6 Bf2 B1e3 Nh3 Bed4 Rhg1 h1R Rc1 Rd1 Qed5 Ba8 Rc4 Ne1+ Ke2 Be3 Qd2 Bg2 Rf8 Bed4 Be3 f3+ Kf2 f4 d8B+ Kg7 Be7 Kg6 Bd7 Kg7 Qe2 Rd3 Qd2 Kg6 Rc8 Rd8 Bf8 Kf6 Kg1 f2+ Kh2 f3+ Nf4 f1Q Bf2 Qe7 Ng6 Qfe2 Bf4 Qd6 Bc7 Re8 Rb8 Rc8 Ra8 Bh1 Kh3 Bg2+ Kg4 Rb4 Kh5 Ra4 B2g3 Bg1 Be3 Rb4 Bgf2 Ra4 Rc1 Rf4 Rc4 Rg4 Bg3 f2 Rb8 f1R Bgf2 Ng5 Kh6 Nf7+ Kh7 Nh6 Bg3 Rff4 Bgf2 Nf7 Bh6 Re8 Rba8 Ree4 Rf8 Re8 Rh8 Rc8 Bf8
brq1n3/B1NP4/1r1nB1r1/1pQN3q/1bB1BK2/1br2B2/k2n2R1/Q2Q4 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 f4 e5 hxg5 axb4 c4 exf4 Ra3 bxa3 cxd5 Bc5 Rh2 Bd6 Rh1 Bf8 Kf2 Kd7 Kf3 Kd6 d4 f5 e4 b5 g4 c5 a5 h5 a6 a2 g6 a1R a7 c4 g5 h4 g7 h3 g6 c3 Ne2 c2 Qd2 h2 Nec3 Nc6 Bd3 Ra6 Rg1 h1B+ Rg2 Nf6 g8B Rh6 g7 Rg6 Be6 Ne8 g8B Rb8 a8B Na5 Bb2 Qg5 Qc1 Nb7 Bgf7 Rb6 e5+ Ke7 Be4 Nbd6 Ba3 Bb7 Bc5 Qh5+ Kf2 f3 Ke3 f2 Kf4 f1Q+ Bf3 Ra6 Ba7 Rb6 Bg8 Qc4 Be4 Qc8 Bgf7 Nc4 d6+ Kd8 d7 Ke7 d5 Ncd6 Na3 Bc6 Nc4 Bb7 Ne3 Bc6 Qa3 c1R Qc5 Rc2 Na2 Rc1 Nb4 Rc3 Na6 Bb7 Nc7 Bc6 Rg1 Bf3 Rg2 Bd1 Bg8 Ba4 Bef7 Bb3 e6 Kf6 e7 Bb7 d8Q Bc6 Be6 Bb7 Rg4 Bc6 Kf3 Ke5 Bgf7 f4 Qd7 Ng7 e8Q Bb7 Qee7 Nge8 Qa3 Kd4 Qc1 Kc5 Qg5 Kb4 Qf5 Nc4 d6 Be7 Qc5+ Ka4 Kf2 f3 Kg3 f2 Kf4 f1N Rg2 Nfd2 Ned5 Bf8 Qdc6 Be7 d7 Ncd6 Qd1 Bf8 Qd4+ Ka3 Qdc5+ Ka2 Bf3 Re3 Qcc1 Rd3 Q6c5 Rc3 Nf6 Ba6 Bae4 Bb7 Bc4 Be7 Nfd5 Ba8 Be6 Nf7 Qe3 Bb4 Qc5 Nfd6 Qa1#
4b3/1bpR3B/bP2Q3/3n1RNR/1n1R3Q/1q4k1/1r1qr2N/KRQ1qb1n b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 g3 Nf3 exf6 Ng1 f5 Qb3 f4 Qa4 Qe7 Qd1 Qd8 h4 Nf6 b3 Ne4 Bb2 Qe7 Bd4 Bh6 Bf2 Bg5 hxg5 Qa3 g6 Qf8 Qc1 gxf2+ Kd1 Qh6 g4 Qf8 g5 Nf6 Kc2 Qd6 Qd1 Ng8 Kc1 Qd8 Kb2 Ke7 d4 Ke6 e4 a5 b6 h5 d5+ Ke5 d6 f5 b4 c3+ Ka2 c2 d7 c1Q b5 h4 g7 a4 b7 f3 b6 Kf4 e5 h3 g6 a3 e6 h2 e7 Nc6 e8Q Nge7 b8Q Bb7 g8R Nd5 g7 Qd2+ Qc2 Kg3 Rf8 f4 Bd3 f1B Bh7 f2 Qe6 f3 Nh3 Bfa6 Rf5 f1B Ng5 f2 g8R Bfb5 Rg7 Qg8 d8R f1B Rgd7 Qf7 Qc8 Re8 Qe4 Ra7 Re7 Qg8 Qce6 Qf7 Red7 Ncb4+ Kb3 a2 Kb2 Ne7 Rd4 Ned5 Rd7 Re7 Na3 Ba4 Rb1 Bac6 Nc4 a1Q+ Kb3 Qa5 Kb2 Ra8 Ne3 Bcb5 Rd6 Be8 Rd7 Qe1 Qc1 Qg8 Qec6 Re5 Ng4 Rd8 Qec2 Re2 Qg6 Qe6 Qf7 Qe3 Qe6 Qb5 Ka1 Q3d2 Qce4 Qc4 Rf8 Qb3 Rf5 Bg2 Rhf1 h1N Nh2 Bh3 R1f4 Bf1 Rh4 Ra8 Rh5 Rd8 Rg7 Rd6 Re7 Rc6 Rg7 Rc2 Rd7 Rb2 Qh4+
5bRN/Pnk1np1r/rrqN2b1/2NNqBQr/1N6/1b1Q3R/1Q3K1n/8 b - - 0 1 legal: proof: b4 d5 a4 a5 g4 e5 f4 exf4 c4 axb4 cxd5 h5 Ba3 bxa3 gxh5 Bc5 Qc1 Bb4 Qd1 Bf8 h4 Kd7 d4 b5 e4 g5 d6 c5 a5 a2 e5 b4 e6+ Kc6 e7 f3 e8N g4 h6 g3 a6 b3 a7 c4 h7 c3 h5 c2 h6 c1Q d5+ Kd7 Ne2 g2 Nec3 g1R Na3 b2 Nc2 b1B Rh3 Na6 Nb4 Rg7 Bd3 Nc5 Kf2 Qa5 Bf5+ Kd8 d7 Nb7 Qg1 Rb8 Qg5+ Ne7 Nd6 Kc7 d8N Bc2 Rb1 a1R Rb2 Bb3 Ne6+ Kb6 Nc5 Kc7 Rb1 Qb5 Rb2 Ra6 Rb1 Qf4 Rg1 Qe5 Rg4 Qc6 Rgg3 Rhg8 h8Q Rh7 Qhf6 Rgh8 Rg4 Rg7 h7 Bd7 Qd2 Rg5 Qb2 Rh5 Rg8 Bc8 Qg5 Bd7 Kg1 f2+ Kg2 f1N Kf2 Ba2 Nde4 Nh2 d6+ Kd8 Ncd5 Bb3 Kg1 Be6 d7 Bc2 Kf2 Bb1 Ndf6 Bb3 Nd6 Kc7 Be6 Bg6 Bf5 Kb6 d8Q+ Qc7 Qd7 Qc6 Qe6 Kc7 Qc4 Nd8 Qd3 Rbb6 Nfe4 Nb7 Nc3 Bg7 Rb8 Bf8 Rd8 Rg8 h8N Rg7 Ra8 Rgh7 Re8 Bg7 Rg8 Bf8 Ncd5+
2N1nrb1/1R4P1/1b3Q1r/b1pNN1bk/3b2n1/Q1r2N1b/1KNqR3/1B1R4 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 g4 h6 f4 Be6 b3 Bc8 Bb2 Nc6 Bf6 gxf4 g5 Nb8 g6 Bg4 Bh4 Bc8 Bg5 hxg5 h4 e5 d4 a5 Kd2 c5 Kc2 g4 b6 g3 h5 f3 d6 a4 h6 g2 b7 f2 d5 a3 h7 e3 b4 a2 g7 Kf7 b5 Kg6 d7 e2 d6 e1B b6 e4 Qf3 e3 Rh2 e2 Na3 Bc3 Rd1 Nc6 b8R a1R b7 Ba5 Kb2 e1B Nc2 Bb6 Qa3 Rc1 Nf3 g1B Bh3 f1B Re2 Qg5 d8N Bea5 d7 Ne5 Ne6 Qd2 d8Q Be7 Bf5+ Kh5 Nc7 Nf6 Nd5 Bh3 Qf8 Ne8 Qf6 Rf8 h8N Be6 Nf7 Ra6 Nd6 Bg8 Nc8 Bf2 Ra8 Bg1 b8N Ng4 Ra7 Bed8 Nc6 Bd4+ Kb3 Be7 Nce5 Bed8 Rb7 Be7 Qc6 Bh4 Qf6 Bg5 Nce1 Rc4 Nc2 Rc3+ Kb2 Ba7 Qe7 Rh6 Qf6 B7b6 Be4 Qf4 Nce3 Qh2 Bb1 Qf2 Nc2 Qe1 Qa1 Qd2 Qa3
B3nr1R/B7/nbN5/3N2k1/K1P3b1/b3QNpB/NQ1bnn2/r1N1nq2 b - - 0 1 illegal: No possible last move
3QB1N1/3Q2n1/1KRb3r/nP1Q1bn1/QrRBrQrp/8/r1k5/2n1q1B1 b - - 0 1 illegal: No possible last move
4q3/QK2bB2/6Rn/1N1rrQ1r/1QkP1pRn/r3RN2/1Q1Q4/1bb1nb2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ba3 exf4 axb5 Bb7 b6 Ba6 b5 Bc8 Bb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 g5 f5+ Ke5 c5 b7 b3 d6 h3 b6 b2 g6 f3 d7 f2 g7 f4 Rh2 h4 Qd2 Ra3 Nc3 b1B Rg2 h2 Rg6 h1N Nb5 h3 Nf3 Na6 b8Q h2 b7 Nb4 Qa7 Nh6 b8Q Ng3 g8R h1R e4+ Nd3+ Ke6 Bd6 e5 Ba6 Bg2 Qf8 d8Q f1R Kd7 Ngf5 Kc6 Ne1 e6 Be7 Qdd6 Rh5 Rg4 Qf7 R8g6 Rd8 Qe5 Nh4 Qf5 Rd5 Qb2 Ra5 Ra3 Qe8+ Kc7 Rf2 Re3 Rd2 Bf1+ Rd3 Be2 Re5 Bd1 Rda3 Bb3+ Kb4 Kb6 c4 Qd2+ c3 Bd5 Bf6 e7 Bg5 Bb3 Bf6 Qb2 c2 Qbb7 c1B Bf7+ Rb3 Kc7 Rd5 Qbb8 Kc4 Qd2 Rba3 Qbb7 Qh8 e8Q Be7 Qeb8 Qe8 Qbb6 Bc8 Qd6 Be6 Kb7 Re5 Nc3 Rad5 Qdb6 Bd7 Qbb2 Ba4 Nb5 Bac2 Qa1 Bd3 Qab2 Be2 Qd6 Bf1 Q6b4+
K5n1/nQ6/r2R1Q2/nbP2QBR/2Q2rNN/5nrp/b2NbQ2/3kb2q b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 h4 gxh4 b4 a6 b6 Bg7 b7 Nh6 b5 Bf8 b6 Ng8 Bb5 axb5 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 e5+ Kf3 h5 g4 b4 c4 d3 Bd2 d4 Ke4 b3 f4 h3 Qe1 b2 Qe2 h2 Ra4 h4 Ra6 h3 Ra7 Bb4 c5 Bd7 Kd5 e4 Qf2 e3 Nf3 e2 Rd1 e1N Nh4 Nc6 b8N h1R b7 Na5 Nc6 Nf3 b8Q Rf1 Ne5 Bb5+ Rd7 Ra6 Qb7 Qc8 Rh7 Qa8 Rh5 Rh6 Bc1 Rg6 Be3 Be1 Nd2 Nc6 Kd6 b1B Kc7 Na5 g5+ Kg7 Qg3 Ba2 Ng4 Kf7 f6 Ke6 f7 Rg7 Qb6+ Kd5 f5 Qc6+ Kb8 Rf2 Nb3 Kc4 f8Q Kc3 g6 Kc2 f6 d2 f7 d3 Bg5 Rf1 Qb7 Qd5 Ra1 d1B Nd2 Be2 Qf2 Qe4 Rb1 Qc6 Rb4 Kd1 Rd4 Qe4 Rd6 Qc6 Ne4 d2 Qd8 Qd5 f8Q Nh2 Nh6 Ne7 Be3 Kc1 Q8f7 Be8 Bf4 Kc2 Qf3 d1N Qdd7 Nc3 Qf6 Kd1 Nd2 Nb5 Qdg4 Na7 Ka8 Qc6 Qfg2 Rf3 Qf2 Rg3 Qge6 Qh1 Qc4 Rg8 g7 Nf3 Qf5 Rg4 Qcf7 B8b5+ Qf8 Rg3 Qd8 Re8 g8Q Nec8 Qc4 Ne7 Ng4 Ng8 Bh6 Re4 Bg5 Rf4 Qdf6
BK1kN2B/r4nQB/2r2r1q/2p1Bn1n/1N1Qn3/8/qNR3P1/1Bb1b2r b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 f4 gxf4 c4 dxc4 h3 e5 Ra4 Bg4 Ra3 e4 Rf3 exf3 hxg4 Qd6 Qa4 Qd4 Qd1 Qd8 Kf2 h5 e4 a5 d4 f5 d5 c5 d6 c3 e5 a4 e6 h4 d7+ Ke7 g5 h3 b6 h2 g6 a3 g7 a2 b5 a1N b7 c2 b6 Rh3 Ne2 Ra2 Nd2 Qc7 d8N Nh6 g8B Qc6 Nf7 Nd7 b8B Nb3 b7 Ne5 Nd6 Nef7 Nd4 Ra7 Ne8 Bg7 Nc4 Nd2 Bh7 Kd8 Bb2 c1B Nc2 Bc3 Nb4 Qa6 Be5 Qa2 Rg1 h1Q Bd3 Rg3 Qa4 Rg6 Bb1 Qh3 Re1 Qh5 Re2 Ne4+ Kg1 Be1 Rc2 Qg5 Kh2 f2 Kh3 f1N b8Q+ Ke7 Qc8 f3 Qb7+ Kd8 Bbd4 f2 Nb2 f4 Bh8 f3 Bde5 Nfd6 Qg7 Nfg3 Kh2 f1R e7+ Kc8 Kh3 Nhf5 Kh2 Rf6 Kh3 Qh6+ Kg4 f2 Kf3 Nf7 Kg4 Rc7 Qd7+ Kb8 Qd4 Kc8 Kf3 Rfc6 Kg4 Ra7 Kf3 Qd6 Kg4 Ne3+ Kf4 Rh1 Nc7 Rh5 e8B Rca6 Bc6 Rh1 Ba8 Rc6 Ne8 Qg6 Bd6 Kd8 Qd2 f1R+ Qf2 Nfg5 Ke5 Qh6 Qd2 Rf6 Qd4 Nc4+ Kd5 Nh5 Be5 Nf7 Bh2 Rce6 Be5 Ncd6+ Kc6 Ra4 Qg1 Nf5+ Kb7 Ra7+ Kb8 Rc6 Qd4+
1Nqk4/r1p1Rr2/1r1Rb1Q1/N5B1/2b1NrnK/8/1qPQq3/r1R2RbR b - - 0 1 legal: proof: f4 b5 e4 b4 g4 d6 e5 dxe5 a3 exf4 axb4 f3 b5 Bf5 Ra2 Bd7 Ra1 Bc8 Ne2 h5 Bg2 f5 Bh3 f4 Ng1 Nc6 Nc3 Nd4 Nb1 Nf5 gxf5 Qd7 Bg4 hxg4 Ra3 Qd3 Ra1 Qd8 Kf2 g5 d4 e5 b4 a5 h4 a4 h5 a3 h6 e4 b6 a2 b7 Be6 b8N Ra7 b5 Nf6 d5 Rh7 d6 Rf7 h7 Qc8 h8Q Kd8 Qh7 Bg7 d7 g3+ Ke1 g2 Kf2 g4 b6 Bh8 Ne2 g1R b7 Rg3 Nbc3 e3+ Ke1 Bg7 Nd4 e2 Kf2 e1R Nb3 Re4 Rb1 a1Q Qd2 Qb2 Qg6 Rb4 Na5 Rb6 Ra1 Rh3 Ne4 Rh4 Na6 Bf8 b8R Bg7 Nac5 g3+ Kg1 g2 Kf2 g1R Ra8 Ke7 d8R Rhg4 Rd4 Ke8 Nd7 Kd8 Rd3 Bf8 Rb1 Bb4 Rd6 Bc5+ Qd4 Rd1 Be3 Rh4 Qd2 Rg1 Re1 Rhg4 Re2 Ra1 Ree1 Bd4 Rc1 Rh4 Kf1 f2 Kg2 f3+ Kg3 f1Q Bg5 f2 Rb8 Rh2 Ra8 Rg2+ Kh4 Qe2 Rb8 f1B Ra8 Re7 Rb8 Ng4 f6 Be3 f7 Rf2 Ra8 Rf6 Rb8 Bg1 f8R+ Re8 Rf7 Rf8 Re7 R8f7 Rb7 Rf4 Rb8 Rba6 Rb3 Rb6 Rf3 Qg2 Rf2 Bfc4 Rff1 Qe2 Nb8+
3n2r1/1Nr2N1n/rqnQ4/4r3/1Rq1kb1N/6nR/2R1PRp1/BQRnK3 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 h4 Ke7 b4 Kd6 c4 Ke5 f6 d5 f7 a5 b6 g5 c5 a4 c6 d3 h5 d2+ Kf2 g3+ Kf1 a3 b7 g2+ Kf2 g4 b5 a2 b6 d4 c7 d3 c8Q Ra7 h6 Ne7 h7 Rg8 h8R Bh6 f8R Nbc6 b8R Ke4 Ra8 Rc7 Qe1 d1Q b7 d2 b8N Qb3 Bb2 Qc4 Qf1 d1N+ Ke1 g3 Nh3 g1N Qd7 g2 Ra4 Bg5 Na6 f2+ Kd2 Qb8 Rb4 Qb6 Qd6 Nd8 Bf6 Nec6 Nc5+ Kf5 Qe1 f1R Nb7 Ke4 Rh5 Bh6 Rc5 Rf3 Qf1 Re3 Ke1 f3 Be5 Bf4 Rf5 Qd4 Rc2 Qc4 Bf6 Ra3 Rh2 Ra5 Bb2 Re5 Ng5+ Ke3 Rh6 Nh3 Nf7 Ng5 Nd2 Nh7 Rac1 a1R Rh3 Ra8 Ba1 Ra6 Nb3 Ke4 Nd4 Ra3 Rf6 Ra6 Nf5 Bg3+ Kd2 f2 Nh4 Bh2 Qh1 f1N+ Ke1 Bg3+ Rf2 Bf4 Qh2 Rea5 Qg3 Re5 Qb3 Ng3 Qb1
3KNR1B/rrnQn3/2Q5/6rn/pNN1b1k1/5n1N/Pn1b1R2/R1r2N1r b - - 0 1 legal: proof: f4 d5 b4 e5 g4 exf4 c4 c5 bxc5 dxc4 Nf3 h5 Qb3 f5 Ng1 f3 Bh3 f4 Qa4+ Qd7 Qd1 Qf5 gxf5 Kf7 Bg4 hxg4 Nh3 Ke7 Ng1 Ke8 Kf2 Ke7 d4 Kf6 e4 Kg5 h3 b5 d5 a5 e5 a4 f6 c3 f7 b4 e6 c2 d6 b3 d7 b2 d8N g3+ Kf1 g2+ Kf2 Ne7 c6 Bb7 c7 Be4 c8Q Ra7 h4+ Kg4 h5 g5 h6 Na6 h7 Nc7 Nc6 Bh6 Nh3 g1R Nd2 b1R f8R Rbb7 Bb2 c1N Rh2 Rg8 h8N Rh1 Nf1 Rg6 Ke1 Nd3+ Kd2 Rg8 Bf6 Nb2 Kc3 Rg6 Qdd7 f2 Kd4 f3 Ke5 Rg8 Ng3 f1N Kd6 f2 Nf7 Nd2 Bh8 f1N Rf2 Nf3 Nb4 Rg7 Ne2 Ng3 Qce8 Nh5 Ng3 Rc1 Nf1 Nc6 e7+ Kh4 Nc2 g4 Qdd8 g3 Kd7 g2 Nd6 g1R Nc4 Rh1 Nb4 Bd2 Qg6 Rg8 e8N+ Ne7 Qc6 Rg5 Qc8 Kg4 Kd8+ Kh4 Rf5 Kg4 Q8d7 Bb1 Rf8+ Bf5 Qdd6 Be4 Qdd7+
1N4rr/1n2K2N/Q1Q1nN1n/2n2NQ1/p3R2b/2R2r1k/1NP2q1q/q2q2B1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 e4 g5 b4 d5 Ke6 a5 b6 a4 h3 d3 b7 f2 e5 f1R b5 d2 f6 f3 b6 f2 f7 d4 Qe2 d1N Qb5 d3 Nc3 d2 Ra3 g3 Nge2 g2 Nd4 g1Q Qa6 Nb2 Nd1 g4 Rc3 Nd3 Nb2 Nc6 b8Q g3 b7 g2 Qc8 Be7 f8N Qc7 Rh2 Kg3 h4 Rh7 h5 Bh4 h6 Na5 Nf5+ Kg4 Qe8 Qc5 Rh3 Qh2 Re3 g1N Re4+ Kh3 Qd8 Nf3 Qg5 Rc8 b8N Qe3 Kd6 Rg7 Ke6 Nd4+ Kd6 Rg6+ Kd7 Qeg3 e6 Nb7 e7 Qe3 e8N Qe2 Qe7 Rg5 Qc5 Ne6 Qcc6 Rg4 h7 Rg6 h8Q Nh6 Qg8 Qf3 Nf6 Ndc5+ Ke7 Rg4 Qg5 Qfg3 N8h7 Rh8 Qh5 Rgg8 Ra3 Qc3 Nd3 d1Q Be3 Qca1 Bd4 Rfg1 Be3 f1Q Rc3 R1g3 Qg5 Rf3 Bg1 Qff2 Nb2
4R1R1/5q1r/1RN1Nn1R/K4N1q/1nb1R1Q1/Q1r2pp1/1n1r1P1q/1B2kb2 b - - 0 1 legal: proof: e4 c5 a4 f5 b4 d5 g3 b5 axb5 cxb4 Be2 dxe4 Bc4 Qd6 Bf1 Qd8 Bh3 e6 Bb2 h6 Bd4 f4 Bf1 f3 Bf6 Bd6 Bg5 Bf4 gxf4 hxg5 d4 Kd7 Kd2 Kd6 h4 Kd5 b6 a5 c3 g4 h5 g5 h6 e3+ Kc2 Ke4 Kb3 g3 Ka4 b3 c4 e5 d5 b2 h7 g2 c5 e2 d6 e1N b7 g4 c6 g3 d7 Nd3 f5 Qe8 d8N Be6 f6 Na6 b8Q Qh5 f7 Bc4 f8R Nf6 c7 Nab4 Qb6 Rc8 Na3 b1B Nh3 g1Q Nc6 Qh2 Qa6 Bba2 Nc2 Nb2+ Ka3 a4 Rg8 Bb1 Ne3 Bbd3 Rb1 Be2 Qc1 Kd3 Ng5 e4 Nf5 e3 Ne6 Rd8 Bh3 Bf1 c8R e2 Qg5 e1R Qg4 Ke2 Qa8 Rd4 Rce8 Rc1 Re7 Ke1 Rge8 Rf8 h8R Rd2 Rg8 Rf7 Qa6 Rh7 Qa7 N2d3 Rb3 Nb2 Qc5 Na2 Rb6 Rcc2 Qb4 Rc3+ Qb3 Nc1 Kb4 a3 Qa4 a2 Ka5 a1Q Qa2 Ncd3 Qa3 Qg1 Rh2 Qa2 Rh1 Nb4 Rh2 Ba6 Rh1 Bfc4 Bf1 Qb3 Bd3 Qa2 Rh4 Qh2 Bb1 Bf1 Ned8+ Bae2 Re4 Qaf7 Rh3 Qh4 Ne6 Qhh5 Rf4 Bc4 Rd4 Qhg6 Rh6 Qgh5 Re4+
3RrNn1/1qNr3B/Qp2n3/2Nb1KPq/q1R2R1Q/1p2Nb2/1r6/3n2kN b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Na3 f5 Nb1 f4 h4 g3 Bb2 Ra4 Bd4 Be7 Bf2 Bg5 hxg5 Nh6 g6 Bg4 Qc2 gxf2+ Kd1 Bd7 g4 Ra7 g5 Ra8 Kc1 Ng8 Qd1 Bc8 Kc2 Ke7 Kd3 Kd6 Ke4 Kc5 a4 f5+ Ke5 h5 e4 h4 d3 b6 g7 f3 d6 h3 a5 f4 d7 h2 a6 b3 a7 Nc6+ Ke6 Kd4 e5 Ke3 d4 Qe7+ Kf5 Rh7 d5 Nd8 e6 c5 d6 c4 Ne2 c3 Qe1 c2 Nbc3 c1R Ra4 Rb1 Rc4 Bb7 Ne4 Rb2 Nc5 Bd5 Bh3 f1B Ng3+ Be2 Rf1 f2 Nh1 Qe8 e7 Qh5 e8N f3 Nc7 Ne6 d8R Rb8 a8Q Rc8 Rg1 f1Q d7 f2 Qa6 Rb8 Qb4 Qa1 Rgg4 f1N Rgf4 Qa4 Qe1 Rc8 Qh4 Bef3 Bg4 Nd2 Bh3 Nb1 Bf1 Nc3 Bd3 Nd1 Bb1 Nf6 g8N Rf7 Nh6 Ng8+ Ke5 Ke2 Nf5 Kf1 Ne3+ Kg1 Bh7 Re7 Kf5 Rg7 Rf8 Re8 d8N Rge7 Nc6 Rd7 Ne5 Ree7 Rd8 Re8 Ng3 h1Q Ng6 Qg2 Nh1 Qf1 Rc2 Qfb5 Nf8 Qc6 Rc3 Qb7 Rcc4
4KnNr/Pb1R1nQb/1k2b2r/1q4N1/1pQR1QN1/1q2r3/NB2N1p1/5n2 b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qb3 f3 Qc2 Qf6 Qd1 Qd8 Nh3 f5 Bg2 h5 Ng1 f4 Bh3 Bd6 Bg4 hxg4 Qb3 f2+ Kd1 f3 Kc2 Bf4 gxf4 Qg5 Kb2 Kf7 Qd1 Ke8 Kc2 Qd8 Kb3 Kd7 Kc4 f1R Kc5 b5 h4 g5 e4 b3 d4 b2 a4 g3 a5 g2 h5 f2 a6 g4 d6 b4 a7 c6 d5 g3 f5 Bb7 e5 Qf6 h6 Ne7 h7 Qg5 e6+ Kc8 f6 Qg4 d7+ Kc7 d8N Qf3 f7 Qa3 f8Q Ng8 e7 Nh6 Qc2 Nf7 Rh4 Qb3 Qc4 Re1 Ne2 f1B Rd4 g1N Nbc3 b1B Bb2 g2 Na2 Nf3 Qh6 Be4 Rad1 Nd2 Qg7 Bg6 e8Q Bf5 Qef8 Be6 d6+ Kd7 Ng3 Bd3 Ne2 Nf1 Rd2 Kc8 d7+ Kc7 Rd1 Rg8 h8N Bh7 Ng6 Rh8 Nec1 Re3 Ne7 Bc2 Ne2 Rh6 Ng8 Bh7 Rd6 Ng5 Qff4 Nf7 Kd4 Kb6 Rd3 Bg4 Ne6 Bh3 d8N Nd7 Rd1 Nf8 Ng5 Be6 Rd7 Nh8 Qe4 c5+ Ke5 Rb8 Kd6 Nf7+ Ke7 Rc8 Qcd3 c4 Nc6 c3 Ne5 c2 Ng4 c1Q Qf4 Qc6 Qdc4 Qb5 R1d4 Rb8 N8f6 Rd8 R7d5 Nd7 Rd6+ Bc6 R6d5 Rh8 Ng8 Nf8 Rd7 Bb7 Ke8
4Qq1Q/nK1B4/2R3R1/bNbrbp2/Q2r1Q1b/1b4p1/1r2P3/Qk1BB2n b - - 0 1 legal: proof: c4 c5 a4 e5 f4 h5 fxe5 b5 g4 hxg4 d4 cxd4 Nc3 dxc3 axb5 Ba3 Qd3 Bb4 Qd1 Bf8 Kf2 Ke7 Ke3 Ke6 Kd4 g5 h4 d5 b4 a5 h5 f5 h6 g3 b6 a4 b7 a3 b5 g4 h7 a2 c5 c2 b6 g2 c6 g3 c7 Ra5 Qd2 Be7 Nf3 g1B+ Qe3 Qf8 Bg2 Nh6 Bd2 c1B Be1 Bd2 Rc1 Ng4 Rh6+ Bf6 Rc2 Nf2 Rg6 a1B+ Rc3 Rg8 h8Q Nh1 Qh4 Bd7 c8B Ra2 Qh8 Rb2 Rc1 Ba5 Rc6+ Kf7 Qh4 Be6 Bd7 Ke7 Kc5 d4 Qg4 d3 Nd4 d2 Nb5 d1R Bd5 Rd4 Qa3 Bh4 Bb3 Rg7 Bd1 Bb3 e6 Be3 Rg5 Kf6+ e7+ Ke5 Rgg6 Rf7 Rh6 Rf6 Rg6 Rfd6 e8Q+ Be6 Rc8 Nc6 b8Q Na7 b7 Bf2 Rc6 Be3 Qec8 Bb3 Qa8 Bf2 b8Q Bg1 Qh5 Ke4 Qh8 Ke3 Bf2+ Kd2 Be1+ Kc1 Qe8 Kb1 Qc7 Bc3 Kb6 Ba5+ Kb7 R6d5 Qf4 Rdd2 Qfa4 Bc5 Qab8 R2d4 Qd6 Rbd2 Qdb8 B1c3 Qf4 Rb2 Q3b4 Rd3 Qaa3 Be5 Qba4 R3d4 Qa1#
2n4b/B1N2NnN/1N1p4/PpkRRr1b/5rQN/7b/1bqb4/QR3nK1 b - - 0 1 illegal: No possible last move, all moves rejected
1n1Q1B2/bK4bp/1QRP1Rn1/bQb5/NrkbN3/1N1p3Q/8/1Q1qr2n b - - 0 1 illegal: No possible last move, all moves rejected
q1nQbbbr/1prQ1N2/5b2/3nb2Q/NQpQK3/2R5/2B3P1/1BN2n1k b - - 0 1 legal: proof: d4 a5 c4 e5 h4 g5 hxg5 d5 b4 dxc4 bxa5 Qd7 d5 Qd8 e4 f6 a4 Bf5 Be3 Bg4 Bd4 Bc8 Ra2 Ba3 Re2 exd4 e5 Bd6 e6 Bf8 Re5 fxe5 Kd2 Ke7 f4 Kd6 e7 h5 e8Q c5 g6 c3+ Kd3 e4+ Kc2 h4 g7 c4 f5 e3 a6 e2 a7 e1B a5 h3 a6 h2 f6 Be6 f7 Ke5 d6 Kf4 d7 Kg3 Qh5 Nc6 Bd3 Nge7 g8B Rc8 a8Q Nd5 a7 Nce7 Bgh7 Rc7 Ne2+ Kf2 Bdg6 Nc8 Nc1 d3+ Kd1 d2 Bc2 Kg3 Ke2 Bf2 Qb8 Bd4 a8Q Bf6 Qaa7 Be5 Rf1 h1N Qd4 Bf6 Qe7 Qe8 d8N d1B+ Ke1 Qa4 Qd7 Qa8 Rf5 Bg4 Bg6 Bh3 Ke2 Kh2 Kf3 Ng3 Rg5 Nf1 Rg3 Kh1 Ke4 Bc5 f8Q Bg8 Nf7 Bb4 Ba4 c2 Nc3 Bbe7 Qfd8 Bf8 Qba7 Be5 Qac5 Bf6 Qb4 Be5 N1a2 c1B Bc2 Bg5 Na4 Bge7 Nc1 B7f6 Qg5 Bg4 Rc3 Bh5 Bf5 Bg6 Bb1 Rh3 Qh5 Rh2 Nh8 Be8 Nf7 Rh4+ Bg4 Rh2 Bd1 Rh3 Bdc2 Rh4+ Qhg4 Rh8 Qh5+
Q5r1/NQ5r/Br1NBbp1/3pn3/1B1N1r2/3bR2n/2knPBq1/4KB1b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 g4 Nc6 b4 Be7 g6 Nb8 g7 Bb7 g5 Bc8 g6 Bc5 Ra6 Nf6 g8B Bf8 g7 Nh5 Rh6 Nf6 Rg6 fxg6 c4 Ke7 c5 h5 c6 Kd6 b6 Ke5 b7 a5 c7 d5 b5 a4 b6 a3 Nh3 d3 Bh7 Kd4 g8Q d2+ Kf2 a2 Qf7 a1R Bg2 f3 Rh2 h4 Na3 Kc3 Nc2 Nc6 b8B Ba6 c8B Be7 b7 Rb1 Bf1 Rb6 Bg8 Rh7 Nd4 Bd3 Bd6 Ne5 Ng5 h3 Qa4 d1N+ Ke1 Ne4 b8N Nd2 Nbc6 Nf2 Na7 Bf6 Ba6 Qd7 Rg2 h2 Rg3 Qh3 Qb7 h1B Be6 Rg8 Nf7 Qg2 Bda3 Nh3 Nd6 Nb1 Bg5 Nd2 Bb4+ Kb2 Bh4 f2+ Kd1 Qe4 Re3 Qf3 Bg2 f1R+ Be1 Rf2 Bf1 Qg2 Qa5 Rf3 Bf2 Rf4 Ke1 Kc1 Qa4 Kb1 Qe8 Kc1 Qea8 Kb1 N4f5 Kc2 Nd4+
5N2/rk1qrR2/1qQR2R1/1B2r3/brbQ4/1Ppp2Kn/Q1R5/r1n3RN b - - 0 1 legal: proof: d4 b5 h4 d5 c4 dxc4 a4 g5 axb5 gxh4 Nh3 e6 Ng1 e5 f4 Bd6 e4 Be7 d5 Kd7 Be3 Ba6 Bd4 exd4 e5 Bf6 e6+ Ke8 Ra5 Bc8 Ra1 Be5 fxe5 Ke7 Rh2 Kf8 Rh1 Ke8 Kf2 c5 g4 h5 g5 f5 b3 a5 b6 a4 b7 h3 d6 a3 e7 Kd7 e8R Kc6 d7 h4 g6 a2 e6 h2 e7 f4 g7 c3 Qe2 h3 Na3 f3 Qb2 c2 Nb1 c1Q Be2 c4 Rf8 c3 e8Q Ne7 g8R Qe3+ Kg3 f2+ Kg4 f1B Bd3 Rh7 Rf2 Na6 b8R Ra7 Nd2 Nd5 Rc1 a1R Ne2 Re7 Qf8 Nf4 Rg1 h1R Rc2 h2 Qa2 Nh3 Ng3 Nc5 Nc4 Qe6+ Rf5 Qb6 d8Q Bd7 Rg6 Re1 Ra8 Kb7 Ne5 Ba4 Bb5 Bc4 Nd7 Re5 Kf3 Nd3 Rf7 Nc1 Kg2 Re8 Qc5 d3 Nf8+ Re7 Qdd4 Qed6 Rd8 Qd7 Rd1 Rhe1 Nh1 R1e4 Rg1 Rf4 Nf2 h1R Kg3 Qde6 Rd5 Qd7 Rdd6 Bd5 Qe3 Rb4 Qed4 Be6 Rg2 Rhe1 Nh1 Bc4 Rg1 Ne2+ Kg2 Ra1 Kh2 Nc1 Kg2 Nf2 Kg3 Nh3 Qc6+
2b3NQ/3Q1rnr/k3q1r1/N1R1R3/rb3Pqr/Bp4n1/3N1Qp1/1NK1N3 b - - 0 1 legal: proof: c4 f5 b4 a5 e3 d5 cxd5 f4 exf4 axb4 f3 h5 Kf2 g5 Ke2 g4 Ke1 gxf3 g4 Qd6 g5 Qd7 Bh3 Qd8 Bg4 hxg4 d4 Kd7 Kd2 c5 h4 Kc7 a4 Kb6 h5 e5 g6 e4 a5+ Ka6 g7 b5 d6 e3+ Kc2 b3+ Kb2 f2 d5 f1R d7 b4 d6 g3 h6 g2 h7 c4 Ne2 Nc6 Ra3 Nd4 Rh6 Qh4 d8N Ne6 d7 Nf6 g8N Rh1 Qf1 Ng7 Qf2 Qg4 Nd4 e2 N8c6 e1Q d8Q Nfh5 Re6 Rh4 Nc2 Ng3 Re5 Qe4 Rc5 Qee6 Ne1 Ra7 Qd7 c3+ Ka1 c2 Kb2 Rc7 Ra4 Kb7 a6+ Kb6 Qe8 Rf7 a7 Bd6 Na5 Ka6 a8N Bf8 Be3 c1R Nb6 Rc4 Qd7 Re4 Kc1 b2+ Kd2 b3 Nbc4 Re5 Rb4 Rg5 Rbb5 Rg6 Re5 Be7 Bc5 Bf8 Ba3 Bb4+ Nc3 b1R Rbc5 Rb2+ Kc1 Ra2 Nb1 Ra1 Bb2 Ra4 Ba3 Ne8 Ncd2 Ng7 Ne7 Rg8 h8Q Rgf8 Qh7 Rh8 Qg8 R8h5 Qh8 Rh7 Ng8
3BR1RN/2rq1k2/P1B2p2/1qBp2QK/q6B/1Q1bb3/4nqRr/3B1q1n b - - 0 1 legal: proof: b4 c5 g4 a5 d4 cxd4 f4 e5 fxe5 h5 gxh5 axb4 a4 Qf6 Na3 bxa3 Bg2 Qg5 Bf1 Qd8 Kf2 d5 Kf3 g5 c4 b5 h4 d3 e4 d2 h6 b4 h7 a2 c5 b3 h5 b2 e6 b1Q Kg4 Nc6 h6 Qc7 a5 Qg3+ Kh5 g4 a6 Qbb3 e5 Qb5 e7 Qb2 Be2 Na5 c6 Qb1 c7 Qb5 Ba3 Bf5 Qb3 d1Q Rh2 Nc6 Nh3 Rc8 Nf4 Qf1 Ng6 Nd4 Bd1 Ne2 Rg2 Qgf2 Bc5 g3 Rb1 a1Q Rb2 Rd8 c8Q Bd3 Qf5 Qaa4 Qg5 Rc8 Rg1 g2 Rd2 Kd7 e8B+ Ke6 Bc6 Ne7 Ra2 Nf5 Rb2 Rg8 h8B Rc7 h7 Bh6 Bf6 Rg7 h8B Rh7 Bd8 f6 Bg7 Kf7 e6+ Kg8 e7 Kf7 e8R Rh8 Qg3 Be3+ Bh6 Rh7 Qg5 Rh8 Rh1 g1Q Rh3 Qgg2 Rg3 Qge4 Rg2 Qe6 Rg8 Qd7 Rc2 Q1g1 Rc4 Qgf1 Re4 Qa1 Ree8 Nfg3+ Kh4 Nh1+ Kh5 Rh7 Qh4 Rg7 Bg5 Qaa5 Qf4 Qaa4 Bh4 Rh7+ Qh6 Rg7 Nf8 Rg3 Ng6 Rh3 Qg5 Rh2 Nh8#
3BQK1Q/6nb/1r3b1p/1P1n3R/N3QB2/k2nQpqB/3r1r2/NQr1q3 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 b3 g4 Kb4 d4 c5 g5 h3 g6 b2 d6 h2 b7 f3 d7 f2 Ke6 h6 Kf7 c4 d5 f4 d6 c3 e5 c2 g7 f3 e6 Qc7 e7 Ra6 e8Q Nf6 g8Q Nh5 Qd5 Nc6 b8Q Ne7 d8Q Ng7 d7 Qg3 Qdc7 Rb6 d8B Bf5 Bh3 f1R Qce5 Rf2 Na3 b1R Ne2 Bh7 Bf4 c1N Qe3 Nd3 Nc3 Rc1 Qde4+ Kb3 Qd6 Nd5 Qdg6 Be7 Nc2 Bf6 Kf8 Kb2 Na1 Ka3 Rf1 h1Q Na4 Qhg1 Rd1 Qe1 Rd2 Rd1 Rc2 Rdd2 Rc5 Nb4 Rg5 Nd5 Rh5 Qg2 Qc4 Be5 Bh4 Rf1 Qec8 Rff2 Kf7 Qg3 Qa2+ Kb4 Qge4+ Bd4 Qb1+ Ka3 Qgd8 Re8 Bf6 Ree6 Qh8 Rec6 Qce8 Rc1 Bd8 Bf6 Kf8
1RBq1nRq/3B3k/2bpr3/1rRR3b/r6n/1p1Q1N2/1PQ1r3/1qRK3Q b - - 0 1 legal: proof: e4 c5 d4 cxd4 a3 f5 exf5 b5 Bg5 b4 Nc3 g6 Be3 b3 Ke2 Bh6 Bc1 Bd2 Nb1 Bb4 axb4 h6 f4 g5 g4 Nc6 f6 Nb8 f5 Kf8 Nc3 Kf7 Ke1 Ke8 Bf4 gxf4 Ne4 h5 g5 Kf7 Nf2 Ke8 Ng4 hxg4 h4 Kf8 c4 e5 b5 a5 h5 g3 c5 d3 h6 e4 f7 a4 b6 g2 g6 e3 c6 d2+ Ke2 d6 c7 a3 b7 a2 h7 Kg7 f8R f3+ Kd3 f2 Ke2 Ra4 Rh6 Ne7 Nh3 g1R Qc2 Nd7 b8R Rg5 Rc1 a1Q Rh5 Qb1 Kd1 Bb7 c8B Bc6 Bb5 f1B Re8 Nf8 Ng1 Bh3 Nf3 Bg4 Qd3 Rg8 f6+ Kh8 f7 Nf5 Ra8 Nh4 Rb8 Re5 Rf5 Re6 Rd5 Bh5 Re7 Kg7 Rc7 Kh6 g7 Rh8 Ke2 d1R g8R Rd2+ Ke1 Rg2 Kd1 Re2 Rg3 Rg8 Qc2 Rg5 h8Q+ Nh7 Qhc3 Nf8 Qe1 Rf5 Qh1 Kh7 Rg6 Bb7 Bbd7 Bc6 Rd2 Rb5 Rd5 Qa1 Qd3 Qa3 Rcc5 Qb4 Qc2 Qd4+ Qd3 Qh8 Rc1 Bb7 R7c5 Bc6 Rg8+ Nfg6 f8Q Rf2 Ra1 Rc2 Qf4 e2+ Ke1 Rd2 Qfh2 Rc2 Qc4 Nf8 Rad1 Rc3 Kd2 Rce3 Qd3+ R3e4 Kc1 e1Q Qhc2 Qf1 Re1 Qg1 Kd2 Qf1 Re3 Qb1 Re1 Rb7 Rc1 Rb5 Rg6 Re3 Kd1 Re2 Rg8+
Nq5B/1B3b1k/q1p3b1/QBP1B1N1/3n4/1pR1KQQ1/4Bn1n/2r1q1rq b - - 0 1 legal: proof: f4 e5 e4 a5 d4 f5 g4 h5 b4 axb4 a4 Bd6 exf5 hxg4 Ra3 e4 Rc3 Be5 dxe5 Rh7 Rc6 Rh5 Rh6 Rh3 Rh8 Rxh8 Kd2 Kf8 h4 g5 c4 Kg7 e6 b5 a5 d5 c5 g3 a6 d4 a7 g4 h5 e3+ Kd3 b3 f6+ Kh7 h6 e2 f7 e1Q f8B b2 e7 b4 e8B g2 f5 g3 f6 b3 f7 Be6 Qd2 Nc6 Qa5 Nf6 Nh3 g1Q Bf4 g2 Bg7 Rg8 f8Q Qb8 Nc3 Bf7 Nd5 Ng4 Nb6 Nh2 Be2 Qgf1 Bfe5 g1Q Bh8 Rg7 Ke4 d3 Qd6 Qg6+ Ke3 Nd4 Bb5 b1B Rg1 c6 Rg3 d2 Qf6 Qh5 Qf3 Bbg6 Ng5+ Kg8 Rh3 Qh1 Qg3 Qg4 Qf3 Qgc8 Rg3 Qa6 Rh3 Qf8 Qg3 Rd8 a8B Rd7 Bb7 Qb8 Na8 d1N+ Kf4 Nf2 Ke3 Ne6 Qf3 Rd1 Rg3 Rc1 h7+ Kf8 Rg4 Rg8 Rc4 Nd4 Rc3 Rg7 Qg3 Rg8 Bhf6 Rg7 h8Q+ Rg8 Qhh4 Rg7 Qhf4 Kg8 Ne6 Kh7 Qff3 Rg8 Bh8 Bh5 Qh3 Rg1 Qhg3 Bhg6 Ng5+
BQ6/1KR1Nb1p/1nprb3/1NqR1P1Q/3rkR2/2r1N2R/b5q1/5nRb b - - 0 1 legal: proof: e4 e5 b4 g5 d4 b5 c4 f6 cxb5 Kf7 h4 gxh4 a4 Ke8 a5 Bc5 Bd2 Bb6 axb6 Ke7 Bf4 exd4 e5 Kf7 e6+ Ke8 Be5 fxe5 Kd2 Ke7 Kd3 Kd6 Ke4 a5 f4 a4 g4 h3 b7 d3 b6 a3 e7 a2 e8R d2 b5 h2 g5 c6 f5 Nf6+ Kf3 Kd5 g6 e4+ Kf4 e3 g7 e2 g8N e1R Re6 Ng4 Ne2 Ra3 Nd4 Qe7 Re4 Qc5 Nc2 Ne3 Qh5 Rc3 Nba3 d1B Rg1 Be2 Rd1+ Bd3 Ra4 h1B Re4 a1Q Ne7+ Kd6 Be2 Nf1 Ne3 Qb2 Rd2 Rd1 Rb4 Na6 b8R Rd8 b7 Nc7 b6 Na8 Ra4 Qa2 Re4 Qad5 Rb4 Bde4 Ba6 Bb1 Rh2 Qg8 Rh3 Ba2 Re4 Qg2 Rd4+ Qcd5 Nb5+ Kc5 Re4 d6 Rd4 Be6 Rc8 Bf7 Re4 Rd4 b8Q Rd7 b7 Nb6 Rd8 Qc4 Rc8 d5 Ke5 Rd6 Rf4 Qb4 Rc7 Qa3 Nc2 Kc4 Ne3+ Kd3 Qd8 Qb4 b8R Qc5 Bb7 Be6 Ba8 Bf7 Rbb7 Be6 Rf2 Bf7 Qb8 Be6 Kf6 Ke4 Rf4+ Kd3 Ke5 Rd7 Nc8 Bf7 Ne7 Rdc4 Rc8 d4+ Kf6 Rd8 Rf2 Ke4 Rd7 d3 Rd6 d2 Rd5 Rd4 Rf4+ Kd3 Rd6 Bae6 Rd5 d1B Ke5 Bb3 Rc7 Ba2 Rd7 Qc4 Kd6 Qb4+ Kc7 Qc5 Rff3 Ke4 Kb7 Qd2 Rc7 Qg2 Rf2 Rd6 Rf4+
1qn2rQ1/nNpR4/Q1N2k1b/1rR1P1N1/B1n4R/3Rr1p1/K2bq3/3R3r b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 b3 f5 Bb2 h6 Be5 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 d4 Kf7 Kd2 a5 Kc2 g4 Kb2 g5 h4 g3 e4 f2 f6 f3 b4 g2 d5 g4 h5 g3 h6 a4 b6 a3+ Ka2 c3 d6 c2 b5 c1Q h7 Qe3 d7 Qe2+ Nd2 Ra7 b7 Qc8 d8R Qe3 b6 Qe1 Rc1 Ne7 Qe2 Ra5 Qa6 Bh6 Rc5 Rf8 h8R Nbc6 b8R Na7 b7 Qe2 Nh3 g1B Rd3 Rb5 Ng5+ Kg6 Ra8 Qb8 f7+ Kg7 Bh3 f1N Bd7 Ne3 Be8 Bf2 Rd1 Be1 Bd7 f2 Be8 Ra5 Ba4 f1R Rd7 Nc4 Rd3 Nb2 Nb3 Rb5 Na5 Bd2 Rd7 Rh1 Rd3 Qc8 b8N Nc4 Nbc6 Kf6 Nb7 Qe8 Rad8 Nec8 Ka1 a2 R8d7 Bg7 Rh4 Bh6 Nb4+ N4b6 Kb2 a1R Kb3 Rc1 Ka2 Rc3 Nc6 Nc4 R3d4 Re3 Rd3 Rg8 f8Q+ Kg6 Qe7 Rf8 Qh7+ Kf6 Qg8 Ne7 Rh3 Qb8 Rh4 Nec8 e5+
n1Kn1NBq/PpB1r2N/1r3N1k/Q5b1/1b2N2B/2Qqp1b1/1nb3R1/1N6 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 h5 e4 g5 a4 Bh6 g4 Bf8 Ra3 f6 Rg3 f5 exf5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Ke2 Kf7 Kd3 Kg7 Ke4 e5 d4 c5 h4 g3 a5 g2 g6 c4 a6 b3 a7 f3 d6 f2 Kd5 b2 h5 c3 h6+ Kf6 d7 c2 g7 e4 h7 Be7 Rh2 Qe8 d8Q Nc6 Bf4 c1B Nh3 g1B Bc4 f1N Qc2 Bf2 Ng5 Nd2 Rg2 Bg3 Qa5 Bb4 Qc3 Nd8 Bc7 Rb8 Ba2 Nc4 Bb3 Bcf4 Ba2 e3 Ne4+ Kf7 f6 Kg6 f7 Kh6 f8N Bd7 Bb3 Ba4 Ba2 Bc2 Bb3 Nf7 Ba2 Qd8+ Ke6 Ne7 d5 Nc8 d6 Bg5 d7 N8b6 Bb3 Rg8 h8N Na8 Nhg6 Rc8 Nh7 Re8+ Kd5 Re7 Ngf8 Qe8 Ba2 Nd8 g8N+ Kh5 Ngf6+ Kh6 Bf4 Rc6 Bc7 Ne6 d8B Rb6 Ng6 Qh8 Ngf8 Rg7 Be7 Nd8 Bb3 Nc6 Ke6 Nd8+ Kd7 Rf7 Na3 b1Q Kc8 Nb2 Be6 Qf1 Nb1 Rg7 Bg8 Qd3 Bc5 Re7 B5d6 Bf2 Bg3 Be1 Bh4 Bf2 Kb8 Bg3 Kc8
Q1B1qR2/p2B1b1k/2q3nR/n2Q2P1/p2rr2q/nBB3N1/1K2Qb2/B5n1 b - - 0 1 illegal: No possible last move, all moves rejected
2bBr1R1/nbQknN2/2R3qR/Q1K1P3/6r1/1Np3pR/3Nn2R/2nr2r1 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 Qa4 h5 Kd1 f5 Bg2 f4 Bh3 f2 Kc2 f3 Bg4 Bd6 Qb3 Bf4 gxf4 hxg4 Kc3 Bd7 Qd1 Be6 Kc2 Bc8 Kc3 f1N Kb4 g5 h4 a5+ Kc5 c6 b4 g3 e4 f2 d4 g4 b6 g2 b5 a4 b7 g3 e5 c3 h5 a3 d5 a2 h6 c2 f5 Kd7 b6 Ra7 d6 Qh4 h7 Nd2 f6 f1B f7 Qf4 f8R Qe4 Rf2 Qe2 Qe1 Qa6 Rh3 Ne7 Ne2 g1N Nd4 Ne2 Nb3 Re8 h8R Bg2 R8h6 Qd3 Ba3 Qg6 Bb4 Be4 Rfh2 c1R+ Bc3 Rd1 Ba5 Nc4 Qc3 Nb2 N1d2 Ra8 Rc1 a1R Qb4 Rg1 Rc4 Rad1 Qc3 Rf8 Qb4 Rf4 Rc2 Rg4 Qc3 Ke6 d7 Bg2 d8N+ Kd7 Rc1 Be4 Nf7 Nd3+ Kc4 c5 Qb4 Nbc6 b8R Na7 b7 Nd5 Bd8 Ne7 Rc2 Ndc1 Qa5 Nac6 Kb5 c4 Kc5 Bd5 Ra2 c3 Ra4 Ra6 Rc4 Na7 Ra8 Re6 b8Q Bg2 Qbb6 Ba6 Rc8 Bgb7 Rc6 Bc8 Rf4 Bab7 Rf6 Qc2 Rfg6 Qf5 Rg5 Qg6 Qc7+ Ke8 Rh1 Nd5 Ne4 Qf5 Qb8 Kd7 Ned2 Re8 R1h2 Ne7 Rg8 Qg6 Qbc7#
2r1k3/5B2/Q1bBP1Qb/1Q4q1/r1n2Qb1/BN2Np2/1n1rprbK/Q3R3 b - - 0 1 illegal: No possible last move, all moves rejected
1k1KN2n/5r2/Q1Q4p/1q2qRPp/N2NBqq1/4R3/6nq/1QQQbrr1 b - - 0 1 legal: proof: h4 c5 a4 b5 axb5 e5 g4 Qg5 d4 cxd4 Bf4 Qd8 h5 Bb7 h6 Bf3 g5 Bg4 f3 gxh6 fxg4 exf4 Kd2 f5 Kd3 d5 b4 Kd7 c4 Kc8 e4 a5 b6 a4 c5 f3 g6 a3 b5 a2 c6 f4 e5 f2 e6 f3 g7 Nd7 e7 Ne5+ Kc2 d3+ Kc3 d2 Kb4 d4 Kc5 d3 c7 Nf7 Kc6 Qd4 e8N Bb4 g5 Qf4 Ne2 Nf6 g8Q Nh5 Bg2 f1Q Rh3 f2 Re3 Ra7 Qg6 Rf8 Be4 Nh8 Qf6 Qh3 Nd4 f1Q Nc3 Qhh2 Na4 Rb7 Rc1 a1Q Rc5 Qfe2 Qc1 d1R Rf5 d2 Qd6 Rg1 Qdc5 Qff3 Q5c2 Ba5 Q2d1 Nf4 Kd6 Ng2+ Ke7 Qff4 Qc6 Qc4 Qc1 Qd5 Qd1 Rb8 Qcc1 Kb7 c8Q+ Ka8 Qd7 Rb7 Kd8 Kb8 Qd6+ Rc7 b7 h5 Qc6 h6 Qdc1 d1Q Qa6 Qde5 Qdc6 Qdg4 Qd1 Qb2 Qcc1 Be1 Qac6 Ka7 b6+ Ka6 b8Q Rcf7 Qbd6 Qbb5 b7+ Ka7 Qg6 Kb8 Qa6 Nh4 Qgc6 Ng2 Nc2 Qff1 Qcd5 Rc7 Qf6 Qb3 Rf2 Ka7 Nd4 Re7 Qfe6 Rf3 Qdd7 Ref7 Qb5 Qbd3 Qbb1 Qdb5 Qec6 Rg3 Rf5 Qff4 Qd7 Rf3 b8Q+ Ka6 Qd5 Rff1 Qbd6+ Ka7 Qa6+ Kb8 Qdc6
K4B2/1R1n1kP1/7q/1pbr1pQB/B4B2/3Q1r1N/1nn1B1R1/Rnq2nq1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 Nc3 Be6 Ne4 f3 Nf6+ gxf6 g5 Bg4 h3 f5 hxg4 f4 Kf2 f5 e4 h5 d4 c5 a4 c4 d6 c3 g6 h4 a5 b6 g7 h3 a6 h2 d7+ Kf7 d5 c2 g5 b3 a7 b2 g6+ Kf6 d6 b1Q e5+ Ke6 Nh3 Na6 Be2 Be7 Qd3 Qc8 d8Q Nf6 g8R Nb4 d7 Bc5+ Be3 Rb8 a8B c1N g7 Rb7 Rg1 h1Q Rg2 Nc2 Rf8 Ra7 Rf7 Ra3 Bc6 Rg8 Ba4 b5 Qc4+ Nd5 Qd3 Nb6 Qg5 Qc7 d8B Nd7 Be7 Rd8 Bf8 Qb6 Ng1 Qh6 Nh3 Rb3 Kg1 f2+ Kf1 Nf6 Rb7 Nd7 Bd2 Kf7 e6+ Ke8 e7 Kf7 Qd6 Rf3 e8B+ Kg8 Bh5 Nd3+ Bc1 Nb2 Bg4 Kf7 Qd3 Qc7 Bd1 Qcb6 Ke2 f1N Bd2 Qc1 Be3 Rg3 Kf2 f3 Be2 Nd4 Bf4 Nd2 Ke3 Qa7 Bb8 f2+ Kf4 f1N Bc7 Nb6 Ke5 Nd7+ Kd5 Rf3 Bcd6 Nc2 Kc6 Nb1 Kc7 Nf6 Bf4 Rd5 Kc8+ Nd7 Kc7 Be7 Kc8 Qg1 Kc7 Nc5 Kb8 Nd7+ Ka8 Bc5 Bh5+
2bN4/2qnn3/1B6/RNp1p1r1/2k1PNq1/N1N1B2q/1b3Q1B/Q2nK1nb b - - 0 1 legal: proof: g4 a5 a4 e5 c4 d5 f4 dxc4 b4 g5 f5 b5 axb5 Ra6 Bh3 Rc6 Ra3 Re6 fxe6 h6 Rf3 h5 Rf4 gxf4 g5 Qd7 Bf5 Qd8 Bg4 hxg4 e4 Ke7 d4 Kd6 h4 f5 b6 c3 d5 c2 b5 Kc5 d6 c6 e7 g3 e8N a4 d7 g2 h5 f3 b7 f4 b6 a3 g6 a2 h6 a1Q g7 Ne7 g8Q Qa8 h7 Qa3 Nd6 Qc7 d8N Nd7 Ne2 g1N Qf7 Rg8 b8B Rg5 h8N Qe3 Bd2 c1Q b7 Bh6 Nb5 f2+ Kf1 Qg3 N1a3 Qcc3 Qa1 Qg4 Ng6 Bf8 Rh2 Qch3+ Rg2 Bh6 Nec3 Kb4 Ba7 c5 b8B Qe6 Qf8 Qeg4 Be3 Kb3 Bb6 Kb4 Nab1 Kc4 B8a7 Nf3 Ke2 f1N Ba5 Ng1+ Ke1 f3 Bf4 Ne3 B7b6 Nd1 Ra2 Ne3 Bh2 Nd1 Nf4 f2+ Kd2 f1B Ke1 Bg2 Bb4 Qd6 Ra5 Bh1 Ba3 Qc7 Bc1 Nd5 Be3 Ne7 Nfd5 Rg7 Qf3 Bf4 Qf2 Rg5 Bc1 Be3 Nf4 Bd4 Bd2 Qh8 Be3 Qhh3 Ncd5 Bb2 Ndc3 Kb4 N1a3 Kb3 Nab1 Kc4 N1a3+
1Bn3Nb/8/3nB1K1/1P1p4/1B6/N1BR1q2/3qqpnk/rQNbbBbQ b - - 0 1 illegal: No possible last move
3N1kqb/2PqNrRn/1b6/Rpq2n1b/N4K1p/1QQ2B1N/1N6/1Rn1q3 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 axb4 e5 f6 exf6 cxd4 Nf3 g6 Ng1 g5 f4 b5 h4 Bh6 g4 Ra7 f5 Kf8 Bf4 gxf4 g5 Ke8 g6 Bf8 Kd2 Ra3 Ke2 Rg3 Ke1 Rg5 hxg5 Qc7 Rh3 Qb6 Rh1 Qd8 Ke2 h5 Kf3 d5 c4 e5 a4 h4 g7 d3 g6 d4 a5 d2 c5 e4+ Kg4 f3 c6 f2 a6 b3 c7 d3 a7 e3 a8N b2 Bg2 f1N Kf3 e2 Bh3 e1B Qc2 d1Q+ Kf4 d2 Ra5 Rh7 Bg2 Nd7 Nc3 b1Q Nb6 Ne7 g8Q Qbc1 g7 Ng3 Nc4 Bf2 Na4 Qe1 Nh3 Bb6 Ncb2 d1Q+ Qd2 Qc5 Qb3 Bb7 g8N Rf7 Qdc3 Bg7 Bf3 Bh8 Rf1 Nf8 Rg1 Nc8 Ne7 Nh7 Rf1 Kf8 Rh1 Rg7 f7 Q1d7 Rg1 Nd6 Rh1 Qee6 Rb1 Qb8 Nc6 Qe1 Nd8 Ke7 f8N Rf7 f6+ Ke8 Rd1 Ndf5 Ng6 Bc6 Ne7 Kf8 Rb1 Ne2+ Kg4 Nc1 Kf4 Rg7 f7 Bb7 Be2 Bf3 Bd1 Bh5 Bf3 Rg6 Nd3 Rf6 Ndb2 Kg7 f8R Qa8 Ng6 Qad5 Re8 Qg8 Re5 Rf8 Ne7 Rf7 Re6+ Kf8 Rg6 Qde6 Rg5 Qd7 Rg7
kbBQ1r2/4K1Q1/Qb6/2Q1bR1N/2P2p2/1bb2R1p/2q1N2Q/q2r1bnN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h4 Qb6 g4 Qc7 f5 Qd6 Bf4 gxf4 g5 Qb6 h5 Qd8 Ke2 Nc6 Kd2 Ne5 Ke1 Ng6 hxg6 Bb7 Ke2 Ba6 Ke1 Bc8 Ke2 e5 b4 d5 c4 Kd7 b6 Kc6 f6 Kb7 b5 a5 f7 h5 g7 d3+ Kd2 e3+ Kc3 d4+ Kb3 e4 g6 d2 Nh3 e2 Ng5 e1B Rh2 e3 Qc2 d1Q Rh3 e2 Nc3 h4 Re3 d3 Bh3 d2 Rf3 Bd6 f8Q Ne7 g8N Bf2 g7 e1B Ne2 Nc6 Nf6 Ne5 g8Q Bb8 Nge4 a4+ Kb4 a3 N4g3 a2 Nfh5 Qf6 Nh1 Bg4 Qb2 Qc2 Qc5 Bd7 Qg4 Rf8 Qg7 Ra3 Bg4 Ka8 Bf5 Bc6 Bc8 Rd3 Rb1 a1B Qa2+ Ba7 Rb3 h3 b7+ Kb8 Ra3 Be4 Ra5 d1B+ Nc3 Rd2 Ne2 Bd3 Qd5 Rh8 Nd4 Rf8 Re3 Nf3 Qb2 Ng1 Rf3 Qb1 Qf5 Qf7 Qfg5 Kc7 b6+ Kd6 Re5 Bb3 b8Q+ Qc7 b7 Bf1 Qf5 Rd1+ Kb5 Be3 Qh2 Qc2 Ne2 Bed4 Qfg5 Bef2 Kb4 Kc6 Qd8 Bfe3 Rf5 Qe5 Qde7 Qf6 Qbe5 Bf2 b8Q Bab2 Qa5 Ba1 Qbe5 Bb8 Qed8 Bb6 Qe3 Qfb2 Qee7 Bfd4 Qa6 Bde5 Qa5 B6c7 Qa4+ Kb6 Qb5+ Ka7 Kc5 Ka8 Kc6 Bb6 Qec5 Re1 Kd7 Rd1+ Ke6 Qa2 Ke7 Bac3 Nd4 Qa3 Ne2 Qa1 Qa6+
2n3QR/N1p4N/1N2b1R1/N1KbpQ2/3nP1qn/3qnr2/1B4RN/n1n2k2 b - - 0 1 illegal: No possible last move
n1B1Q3/6Qr/5qRq/5b1p/2kpRn2/1qnPBR1N/1R1b1n2/4QKRq b - - 0 1 illegal: No possible last move, all moves rejected
1n1BNqq1/rQ5p/Np2P3/1K6/r1r3rN/Nn1n4/1R2bnQ1/1QR2Nk1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 g6 g5 Bd6 Bh3 f3 Bf5 gxf5 g6 f4 Nc3 Be7 Nb1 Bg5 hxg5 Ra7 Rh5 Ra5 Rh1 Ra8 e4 Ke7 d4 Kd6 Kd2 f5 Kd3 c5 Kc4 b6 a4 f2 a5 f1N a6 b3 a7 b2 g7 f3 e5+ Kd7 d6 Ke6 g6 f4 d5+ Kf5 d7 Kg4 d6 Kg3 e6 Kf2 Na3 b1R Ne2 Nf6 g8Q Ng4 Ra2 Ra1 g7 Nd2+ Kb5 c4 Ng3 c3 Rb2 c2 Nf1 Nb3 Qf7 Kg2 g8N f2 Nh6 f3 Nf5 Rg8 Bg5 c1N Qg6 Nd3 Qb1 Qf8 d8Q Ra2 d7 Ba6+ Ka4 Rg7 Qe7 Qg8 d8N Bc4 Nf7 Ba6 Rh3 Kg1 Qb7 Ra1 Bd8 Ra2 N1g3+ f1Q N7d6 Ngf2 Ne8 Rc7 Rh4 Rc8 Rb4 Rc4 Rc2 Rg4 Rc1 Rc2 Nh4 Rcc4 Rc2 Qc1 Nf1 Qh6 Rc1 Qhf8 Be7 Nd1 Bd8 f2 Ng3 f1R Qgg7 Rf7 Nf1 Rc5 Qg5 N1f2 Qg6 Nd4 Rb2 Nb3+ Qge4 Nf4 Qg6 Be2 Qgc2 Rc4+ Kb5 Rfc7 Qce4 N4d3 Qec6 Nd7 Qe4 Ra4 Qf3 Rac8 a8N Nb8 Qfc6 Rcg7 Nac7 Re7 Na6 Rcc7 Qcc2 Rcc4 Qc6 Ra7 Qb7 Ne5 Qce4 Ned3 Qg2+
2nN1KNB/b1R2n2/N4n2/Q2k1pQr/1Q1N3p/5qb1/1P1R1Np1/b1r2r2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 fxg4 axb5 c5 d4 cxd4 f5 e6 f6 Bd6 Qd3 Bc5 Qd1 Bf8 h3 g5 Qd3 g3 Qe3 g4 Qg5 Bb7 Qd2 Be4 Bg2 Bf5 Be4 g2 Qd1 g3 Bd3 Bg4 Bf5 exf5 hxg4 Bd6 Rh5 Ba3 Rh1 Bf8 Kd2 Kf7 Kd3 Ke6 Kc4 h5 e4 a5 g5 a4 e5 h4 f7 d6 b6 d3 b7 d2 g6 a3 g7 a2 Ne2 g1B Nd4+ Kd7 Kd5 g2 c4 Ke7 e6 Qc8 c5 Bh2 c6 Rh6 c7 Qd8 c8Q Ra7 Qc7+ Nd7 b8Q Bg3 Qg4 d1R Bd2 Rh5 Qb4 Nh6 Bc3 Rc1 Qca5 Nb6+ Kc6 Kf6 e7 d5 e8N+ Ke5 g8N Nc8 Nd2 Bc5 f8N Nf7 Ne4 Qg5 Rh3 Qf4 Nf2 Qf3 Nc7 Ra6+ Kd7 Ba7 Ke8 Rc6 Na6 Rf1 Rc1 a1B Nb5+ d4 Ne6 Kd5 Nd8 d3 Kf8 d2 Bh8 d1N Qg5 Nc3 Nd4+ Rc5 Rc2 Ne4 Rd2 Nf6 Rh1 Rb1 Re1 Rc1 Re7 Rf1 Qaa3 Rc3 Rc7 Rcc1 Qaa5+
1n1BB2q/2n4N/2Q2pP1/Kb1QN1r1/1p1r2p1/N4BB1/B3b1R1/3kr1bn b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e6 b4 axb4 f5 exf5 h3 Bd7 h4 Bc8 g4 g5 hxg5 Qf6 g6 Qd6 g5 Qd8 a4 Ra7 Ra3 Ra5 Rg3 Ra8 Rg4 fxg4 e4 Kd7 d4 Kd6 Kd2 b5 a5 c5 g7 h5 g6 b3 Kc3 b2 a6 f6 a7 c4 Kb4 c3 Be2 h4 Bf3 h3 Na3 b1B Rh2 c2 Rg2 h2 Nh3 h1N Ng5 Ne7 g8B Rh5 Nh7 Bd7 Bf4+ Re5 Bh2 c1R Bg3 Bd3 Qa4 Qc8 Ka5 b4 Qb3 B7b5 Qa2 Kd7 d6 Kc6 d5+ Kc5 d7 Kd4 d8N Kc3 d6 Nd5 d7 Re1 Nc6 Nc7 d8B Rg5 e5 Bc5 e6 Be2 e7 Bg1 e8B Kd3 Qf7 Kd2 Ne5 Kd1 Qa2 Qd7 Qe6 Qg7 Qc6 Qh8 Ba2 Nba6 Be7 Rd8 a8Q Rd4 Bd8 Nb8 Qab7 Rh5 Qd5 Rg5 Qbc6
2Q1q3/2bbrB1K/np4p1/1PQn1Q2/1Q3n2/Rp4k1/RBb3QN/3q2Br b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 d5 g4 hxg4 d4 Qd6 b5 Qd8 Na3 c6 cxd5 c5 Nc2 cxd4 Nb4 axb4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 g3 a4 b6 f4 d3 a5 b3 h5 d2 a6 g2 h6 Be7 h7 Nh6 a7 Nd7 d6 Qf8 Qg4 d1B Ra3 Ba6 Rh2 Bc8 Nf3 g1Q Bc4 Qf7 Bb2 Nb8 d7 Qe8 d8Q Na6 Bf7 Bd7 Qc8 Bd6 Bd4 Qf1 Rha2 Bc7 Bg1 Ng8 Nh2 Ne7 Qh3 Rb8 a8Q Nd5 Qc3 Rb7 Qb4 Rg8 h8B Ra7 Qd4 Bc2+ Qd3 Qd1 Qab7 Ke7 f6+ Kd6 f5 Rf8 Be6 Rg8 f7 g6 f6 Rg7 f8Q+ Re7 f7 Ra8 Qh6 Ra7 f8Q Ra8 Qe3 Ra7 Qf5 Rh7 Ng4 Rh1 Qba8 Rb7 Bf7 Ra7 Nh2 Rb7 Qe2 Ra7 Kf3 e4+ Kg4 e3 Kg5 Rb7 Qg2 e2 Kh6 e1N Qd4 Nd3 Qgg4 Nf4 Kh7 Nh5 Qg2 Bd8 Qdc4 Bc6 Bg7 Re7 Be3 Bd7 Bg1 Bc7 Bh6 Nc5 Qaa4 Na6 Qff3 Ke5 Qab4 Bc6 Bc1 Bd7 Qfc3+ Kf5 Bb2 Nhf4 Qg7 Qg4 Qcc5 Qd1 Qgf2 Kg5 Qg2+ Kh5 Qe5+ Kh4 Qge2 Kh3 Qf5+ Kg3 Qg2+
Q1B2Kb1/RPk3n1/1N2QN2/8/ppnqQ2r/RRp2bRr/1rRq4/7n b - - 0 1 legal: proof: b4 b5 a4 f5 e4 c5 exf5 g5 h4 gxh4 a5 Bg7 c4 Be5 Bb2 Bc7 Bc3 Bb6 axb6 d6 Bd4 cxb4 c5 Na6 c6 Nb8 Bc5 dxc5 Ke2 a5 Ke3 e5 Ke4 h5 g4 a4 d4 h3 f4 h4 b7 h2 f6 h3 f7+ Ke7 f8R Kd6 f5 c4 c7 b3 f6 c3 d5 b4 g5 b2 f7 Nc6 g6 Nge7 g7 Rb8 g8R Bd7 c8Q Rh4+ Qg4 Rh8 Nf3 Rh4 Nbd2 b1N Ra3 Nf5 Ng5 Ncd4 Nh7 Be6 Nf6 Ng7 Bg2 Ne2 Nc4+ Ke7 Rc1 h1R Nb6 Kd6 Rc2 h2 Bh3 Rg1 Re8 Rg2 f8R h1B Qf4 Bf7 Qe6+ Kc7 Rb2 Qd7 Rbb3 Ra8 Rd8 Ra5 Ra8 Ng3+ Ke3 Rd2 Ra7 Rb2 Qe4 Bf3 Kd3 Qd6 Kc4 Nh1 Rd8 Ra6 Rde8 Qd8 Kc5 Nd2 Bf5 Nc4 d6+ Kb8 d7 Kc7 Nc8 Rd6 Nb6 Rdd2 Bh3 Rh2 Bg4 R2h3 Bf5 Nh5 Rg3 Ng7 Rh8 Bg8 Rh6 Rbh2 Rhg6 Rc2 Rg2 Rb2 Rc2 Rh5 Rg3 R5h4 Qd4 e4 Bg4 e3 Qde4 e2 Bf5 Qc8 d8Q+ Kb8+ Kd5 e1Q Qe8 Kc7 Kc5 Qd7 Qa8 Nd6 Kd5 Qd2+ Ke5 Nh5 Bg4 Nc4+ Kf5 Q2d6 Kg6 Qd2 Bf5 Q7d4 Bg4 Bh7+ Kf7 Ng7 Kf8 Bg8 Q6d5 Qg5 Bc8 Qgd2 Qde6
N3n1Q1/1pNn2bK/r1bkR3/4r1q1/8/1p2rnP1/1p3q1Q/NBNN1QR1 b - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 f5 cxd5 g5 exf5 gxh4 Nh3 c5 Bb2 c4 Ng1 c3 Rh2 cxb2 Rh3 Na6 Rh1 Nb8 Ke2 Kd7 Kf3 e5 Kg4 b3 Kh5 e4 d4 h3 f4 h2 a4 e3 a5 h6 Kg6 h5 a6 e2 d6 e1N g3 h4 f6 h3 a7 Qe8+ f7 Nh6 d5 Qe3 f5 Qc3 f6 Nf5 Qh5 Qd3 Nc3 Bg7 f8N+ Ke8 d7+ Kd8 f7 Ke7 d8N Rh7 Nc6+ Kd6 Nb4 Nf3 Nd1 Kc7 d6+ Kd8 d7 Ke7 Ne6 Qd4 Ne2 Kd6 d8Q+ Nd7 Nc1 Qf2 Rg1 h1Q Bd3 h2 Nc2 Rh8 Re1 Re8 Nc7 Re3 Kh7 Qhf1 Rb1 h1R Qg8 Rh3 Be4 Qb5 Na1 Rh4 Bd3 Rhe4 f8Q+ Re7 Qff7 R7e5 Qh2 Qa5 Ne6 Qd8 Nc7 Qg5 Rg1 Kc5 Re1 Nd6 Bc2 Ne8 Qc4+ Kd6 Qf1 Rc3 Re4 Re3 Bd3 Rb5 Re7 Rbe5 Be4 Nc5 Bc2 Bd7 Bf5 Bc6 Be4 Rd8 a8N Nd7 Nb6 Ng1 Qb5 Nb8 Na2 Bd5 Ndc3 Nf3 Rg1 Bc6 Bb1 Rc5 Qf1 Rce5 Nc1 Nd7 Nd1 Rb8 Qh8 Ra8 Qg8 Ra4 Nba8 Ra6 Re6+
3K1Bq1/3RQ3/Q1B4Q/Pn1bp3/2r1N3/1qk5/b1NbnQpp/b1B1r1Q1 b - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 a4 f5 exf5 g5 Ra3 d4 Rg3 d3 h4 gxh4 cxd3 hxg3 d4 Nc6 d5 Nb8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 b5 d6 h5 g5 g2 a5 b3 g6 b4 g7 h4 f6 h3 d7 b2 f7 b3 Bb5 h2 Na3 b1B Nc2 b2 Ne2 Na6+ Kc6 Nf6 g8Q Ba2 Nc3 b1Q Qg7 Rh4 Qh6 Ne4 Qg1 Bg7 f8Q Ng3 Ne4 Qb3 Qf3 Qf8 d8Q Ne2 Qdd3 Bb7+ Kd7 c5 Bc6 Nc7 Qa6 c4 Qfe3 c3 d4+ Kf5 f4 Re8 d5 Qg8 d6 Nb5 Qgf2 e6 Rd1 Be5 Nb4 c2 Qg1 Ba1 Qef2 e5 Rd4 Rf8 Ke7 Rc8 d7 Rh3 d8Q Re3 Rd7 Ba8 Ba3 c1B Nc2 Bd2 Bc1 Rc7 Bb7 Rc4 Bc6 Ned4 Qe8 Re1 Kd8 Ne2 Qef8+ Kg4 f5 Bb7 Qc5 Kf3 f6 Ba8 f7 Bb7 Ng5+ Kf4 Qe7 Ba8 Bf3 Bd5 Ne4+ Qg5 Qhc6 Be6 Nf6 Qg8 Qcb6 Kf5 Bc6 Kf4 Ne4 Bd5 Qfe8 Kf3 f8B Kf4 Qg6 Kf3 Nc5 Kf4 Qh6+ Kf5 Nb7 Ke4 Nd6+ Kd3 Qbf2 Kc3 Ne4+
nR1Q4/QB1rq2P/Q2p3r/4n1k1/bq3N2/nbRpK1N1/1p4Qn/1R2Q3 b - - 0 1 legal: proof: g4 c5 f4 f5 gxf5 a5 f6 e6 d4 cxd4 b4 axb4 f5 h6 Bg5 Bd6 e3 Bf4 exf4 hxg5 Kd2 Kf7 c4 b5 a4 b3 h4 d3 a5 e5 c5 g4 c6 g5 h5 e4 h6 d6 c7 e3+ Kc3 b4+ Kd4 b2 a6 b3 a7 e2 Qc2 e1N Qf2 g3 Ra6 g4 Bg2 Bd7 c8Q Ba4 Ke3 Ne7 Nc3 b1B Ne4 b2 Nh3 Bbc2 Rc6 Ng6 Qa6 Bcb3 Rc3 Nd7 Qc2 Rb8 a8Q Nge5 Q8a7 Rb7 Bf3 g2 Ng3 g1N Qg2 Rc7 Bb7 Ngf3 Rf1 Qe7 h7 Rf8 Rg1 Nb6 Rf1 Nh2 Rh1 Ke8 f7+ Kd8 f6 Na8 f5 Rd7 Nf4 Nc2+ Kd2 Rg8 Rb1 Na3 Ke3 Rg6 f8Q+ Qe8 f7 Rh6 Qg7 Ke7 Qg8 Kf6 f8Q+ Qf7 Qfb8 Qe7 Qe6+ Kg5 f6 Nhf3 f7 Nh2 Nf1 g3 f8R Bc4 Qe2 g2 Ng3 Bcb3 Qd8 g1Q+ Qf2 Qg2 Qh3 Qc6 Qe1 Qb5 Qg2 Qc4 Qda5 Qb5 Rb8 Qb4 Qd8
2q3B1/RrRp4/3pBK1P/1QrB4/n1Qnb3/qp5R/BNk1nB2/1n5b b - - 0 1 legal: proof: f4 a5 d4 f5 b4 axb4 d5 e5 fxe5 Bc5 g3 Bf8 d6 cxd6 Kf2 h5 Ke1 f4 Nc3 f3 Ne4 Be7 Nf2 Bg5 Ng4 Bf4 gxf4 hxg4 Kf2 Ke7 Kg3 Ke6 a4 Kf5 h4 Ke4 c4 b5 e6 g5 f5 b3 f6 f2 c5 b2 f7 b1N f8Q b4 h5 Ne7 c6 Na6 a5 Na3 c7 Ra7 h6 Nc6 e7 Rb7 e8B Ne7 Bf7 Nb8 a6 Nd5 a7 Qe8 a8B Rh7 Be3 Rh8 Qb3 Nb6 Nf3 Rg8 Ne5 Na4 Rh3 Nc6 Nd3 Nb1 Be6 Nd4 Nb2 Rg7 Qc3 b3 Qb4 Rg8 Qf7 Rf8 Qh5 Rf5 Bg8 Rc5 Bg2+ Kf5 B2d5 f1B Bf2 Bg2 e4+ Ke5 Bde6 Bh1 Kh2 Kf4 e5 Ke4 Kg3 Qf8 Bef7 Qd8 e6 Qf8 e7 Qd8 Nd1 Kd3 e8B Kc2 Be6 Be4 Bg6 Qf8 Nb2 Qe8 Kh2 g3+ Kg1 g2 Kh2 g1N Kg3 g4 Kh4 g3 Qe2+ Kc1 Qeb5 g2 Bgf5 Kc2 Kg5 Nge2 Kf6 g1Q Ra2 Rb6 Bad5 Bb7 c8R Qc1 Rc7 Qc8 Bfh7 Nac3 Ra7 Na4 Nd3 Qa3 Nb2 Bg6 Bc4 Bh1 Bcd5 Bge4 Bg6 Rb7 Bgf5 Kc1 Bg6 Beg2 Bd3 Be4 Bc2 Nbc3 Bb1 Kd2 Ba2 Kc2 Rh4 Nb1 Rh2 Nc1 Rh3 Nce2 Q4c4+
q2b1bK1/np6/Q2N1Qbr/1Q1rQ1PB/Np4pk/1bqB4/4R1n1/4NQ2 b - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 d5 cxd5 g5 fxe5 Ra7 a4 Ra8 Bb2 Nd7 Bd4 Nb8 Be3 h6 Bf4 gxf4 g5 h5 Ra3 Kd7 Rg3 Ke8 Rg4 hxg4 Kf2 Ke7 e4 c5 d4 f5 h4 c4 a5 f3 Ke3 f2 Kf4 c3 e6 c2 Ke5 c1B h5 f4 d6+ Ke8 d5 f3 e7 Kf7 e8N Ra7 a6 Ba3 h6 Kg6 d7 Ne7 Ke6 Bg7 h7 Qa5 e5 Rg8 h8Q Bc1 d6 Bf4 Bd3+ Nf5 Qf1 Nc6 Nc3 Bf8 Rh2 Be3 Rg2 Bb6 Na4 Bd8 Qg7+ Kh5 Kf7 Nh4 e6 Qe5 e7 Qc3 Qe5 Rg6 Qb5 Re6 Kg8 Rh6 Rh2 Ra8 a7 Rb8 a8Q Na7 Qa1 f1B Re2 f2 Nf3 Bg2 Ne1 f1Q Qe5 Be4 Qb1 Nb5 Qa6 Na7 Qc1 Qf3 Qcf4 Qh3 Qf1 Ng2 Qab5 Kh4 Qa6 Bc7 d8Q Bg6 Qd7 Bd8 Qdb5 Bcf5 d7 Be6+ Qf7 Ra8 Nd6 Bb3 e8B Rc8 Qfc4 Rc5 Qf7 Rd5 Qf1 Qc8 Bf7 Qa8 Be8 Bc7 d8Q Bb6 Qdf6 Bd8 Bc4 Qc3 Bd3 Be4 Bh5 Bh7+ Kf7 Bg6+ Kg8
2Q1K3/1q2pP2/1B2BqqN/3k3r/Bpb1rn1Q/3Nnn2/pB1Q4/3RrB2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 b4 f5 exf5 g5 b5 gxh4 d4 Na6 c4 Rb8 Ra2 Qc7 Rb2 Ra8 Rb4 cxb4 c5 Bh6 c6 Nb8 Bd3 Qd8 Bf1 Bf4 Rh3 Bd6 Rh1 Bc5 dxc5 Ba6 Bh6 Bb7 Bc1 Bc8 Ke2 Kf7 Ke3 d5 Kf4 h5 Kg5 a5 g4 h3 f4 h4 f6 Ke6 Kg6 a3 g5 d4 c7 a2 b6 a1N b7 a4 f7 d3 f8Q h2 c6 h3 f5+ Kd6 Kf7 a3 g6 a2 g7 d2 f6 Nd7 b8B Ra5 Ne2 Re5 Bb2 Kd5 Na3 Re4 Nc4 Nc2 Ba7 Ne3 Ng3 Rh5 Bb6 Ba6 Ne5 Bc4 c8B Qc7 Nd3 Qe5 Qg4 d1Q c7 Qc2 Qh4 Qec3 Nf5 Ne5+ Ke8 Nf3 f7 Qf6 Nh6 Qb1 Rg1 h1Q Bd7 h2 c8B Qg2 Ba4 h1R Be2 Qc2 Rd1 Re1 Bf1 Qgg6 Kd7 Qe2 Qd8 Qeg2 Ke8+ Qd6 Kf8 Nf6 Bcd7 Qc6 g8Q Qb7 Qc8 Q2g5 Bf5 Ng2 Qh7 Ng4 Ke8 N4e3 Qg7 Nf4 Qc3 Q6f6 Qd2 Qgg6 Be6+
5N1B/2Kn2R1/1P4p1/QNbN3N/1n1Qq1pb/1n2nb2/r1N1B1np/1Q4k1 b - - 0 1 legal: proof: b4 b5 g4 e5 a4 c5 axb5 a5 d4 exd4 h4 g6 h5 c4 Ra3 Ra6 Rd3 cxd3 h6 Re6 Rh4 Re7 Rh3 f5 Rh1 Rg7 hxg7 fxg4 Kd2 Kf7 f4 Ke6 e4 d5 c4 h5 f5+ Ke5 b6 Kf4 b7 Kg3 e5 Kf2 f6 a4 b5 a3 b6 h4 e6 a2 e7 a1B e8Q h3 f7 Na6 b8Q Nc5 Nf3 Bb7 Nc3 Nf6 g8N Nfd7 Qe4 Qe7 Be2 h2 Qa7 Qe5 Ne1 Qf5 Qe5 Qe4 Nc2 Kg2 Rf1 Nb3+ Ke1 Ba3 f8N Bc5 Rf7 Kg1 Bb2 Rh7 Qb1 d2+ Kd1 Rh3 Qh8 Rf3 Nb5 Rf2 Bc3 Bb2 Nf6 Bba3 Nb4 Be7 Nh5 Bh4 Nc2 Bc5 Rg7 Ba8 Nb4 Rg2 Qa5 Rf2 Qd3 Bb7 Kc2 d1N Ba1 Ne3+ Kb2 Ng2 Ka3 Ba8 Ka4 Bc6 Qc2 d3 Bc3 d2 Qb1+ d1N Nc2 d4 Bb2 Bb4 c5 d3 Bf6 Bb7 c6 d2 c7 Bc5+ Bd4 Bd5 c8N Bc6 Ne7 Bb7 Ne1 Nde3 Nd5 d1N Nc2 Ba8 Nba3 Bb7 Kb5 Bc6+ Ka6 Ba8 Nb5 Bc6 Ndc7 Nd5 Ka7 Nb4 Nd5 Ne5 Kb8 Nd7+ Kc7 Ba8 Qb2 Nde3 Bf6 Rf1 Qd4 Ra1 Qh6 Ra2 Qf4 Nb8 Qf5 Nd7 Rf7 Nc1 Qf4 Qf5 Bh8 Nb3 Ndf6 Bf3 Rg7 Qe4 Qg3 Kh1 Nd5 Nf4 Qe1+ Kg2 Qec3 Kg1 Qb2 Ng2 Qb1+
1KN1bN2/R3q1bP/NQrR4/1bnN1N2/8/1p2Qp2/bpRb1B1k/3n1n2 b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 Na3 f5 Nf3 h5 Bh3 b5 Nb1 f4 Ng1 Ra6 Be3 Rf6 Bc1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 Kd2 Kf7 Kd3 g5 Ke4 g3 Kd5 f3 c4 d3 a4 b3 h4 b2 e4 b4 e6+ Kf6 h5 g2 c5 d2 h6 g4 e5+ Kg5 e7 Kf4 Kd6 Kg3 a5 Na6 h7 Nh6 c6 Nc5 a6 Bg7 e8Q Qe7+ Kc7 d5+ Kb8 d4 c7 d3 e6 Bd7 c8N Bb5 f6 Nf5 f7 Ne3 f8N Nf1 Qb3 d1B a7 d2 a8N Rg8 Qe3 Bb3 Nc7 d1B Nc3 Ba2 Qg6 Bda4 Rh2 b3 N3d5 Be8 Na6 Bab5 Qf6 Rh8 Rh6 Rg8 Rg6 Kh2 Ne2 g1N Ng3 Ne2 Nf5 g3 Bd2 g2 Be1 g1B Bf2 Nc3 Rc1 Bh8 Rc2 Bg7 Qfd4 Nd1 Qb4 Ba4 Qb6 Bab5 Rf6 Bh8 Rf7 Rg6 Rf6 Bg7 Rf7 Qd8 e7 Rc6 Rf6 Bd7 e8R Qe7 Rd8 Be8 Rfd6 Be5 Rd7 Bg7 Bh4+ Bf2 Rc3 Bg3 Ra7 Be1 Rc2+ Bd2 Bf2
3b2BR/2N5/1Nq1Q2K/kQ1q2Q1/r5Nn/Q2p1p2/2qp2bP/bnQ1R2q b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 Kf2 d5 b4 Kd7 e4 Kc7 c4 Kb6 e5 g4 e6 g5 f6 d3 e7 d2 e8Q d4 f7 a4 Qee1 d3 Qe6+ Nc6 Na3 Rh4 Nh3 Be7 f8Q Nf6 Bg2 Qd5 Re1 Bd8 Qc1 Bb7 Qfe7 Nh7 Bh1 Nf8 Q7f6 Ng6 c5+ Kc7 Ra2 Nd4 c6 Kb6 c7+ Bc6 c8Q Ne2 Qa8 Nc3 Bg2 Nb1 Nc4+ Kc7 Rc2 a3 Nb6 a2 Qaa3 a1B Rc3 Qa2 Rc5 Qc2 Rf5 Bd5 Qfe5+ Kb7 Rf8 Be4 Rh8 g3+ Kf1 g4 Qg5 f2 Bh1 Bc6 Bd5 Kc7 Kg2 Kb7 Na4 Ka7 b6+ Ka6 b7 Kb5 b8Q+ Ka6 b5+ Ka5 b6 Ba8 Rg1 f1Q+ Kh1 Qe1 Kg2 Qe5 b7 Qd6 Re1 Qdc6 Kf1 g2+ Kf2 g3+ Kf3 g1Q Nf2 g2 Ng4 Qgc5 Nb6+ Kb5 Qbe5 g1Q b8N Qf1+ Ke4 Qh1+ Kf5 Qd4 Bb3+ Qdd5 Na6 Bb7 Na4 Ka5 Nc7 Ne7+ Kf6 Ng6+ Kg7 Ba8 Nf2 Rg4 Kh6 Nh4 Ba2 Bb7 Bb3 f3 Nb6+ Ra4 Ng4 Bc8 Q6f6 Qdc5 Bg8 Q5d5 Nf2 Bf5 Qfe6 Bh3 Ng4 Bf1 Qeb2 Bg2 Qb5+
N2NQk1r/qn1r2R1/B5p1/1pbp3N/1q2P3/2br3b/b4NRN/Q1K3Q1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 fxe5 c5 Qd2 cxd4 Qd3 Ne7 Qd1 Ng8 Na3 h6 Qd3 Nc6 Qd1 Nce7 Bg5 f4 Nb1 Nf5 gxf5 hxg5 Kd2 d5 h4 f3 c4 f2 a4 b6 e4 g4 f6 g6 f7+ Ke7 a5 g3 a6 g2 h5 d3 h6 b3 e6 b2 h7 Bg7 f8N Bb7 c5 Qc8 c6 Ke8 e7 Qd7 a7 Bc8 c7 Nf6 Nf3 g1B Ne6 Kf7 Nh2 Ne8 Nc3 b1B Kc1 Nd6 e8N Ba2 Nd8+ Kf8 Nf6 Nb7 Nh5 Bd4 Be2 f1Q Rb1 Qd6 Rb2 Bh3 c8Q Qf2 Rc2 Rb8 a8N Qb4 Qf1 Be5 Nd1 Bc3 Qe6 Qf7 Nf2 Rc8 Qg2 Rc7 Qe5 Rd7 Qgg3 Be1 Qa1 Bc3 Qg5 Rg8 h8Q d2+ Kd1 Qfe7 Ba6 b5 Rb2 Qh7 Kc2 d1R Qg4 Rd3 Kc1 Qf7 Qe5 Rh8 Qgg3 Kg8 Qe8+ Qff8 Qg5 Qc5 Qg2 Qa7 Nd1 Qb6 Nf3 Bf6 Ng7 Bf5 Rh7 Bh3 Nh5 Bc3 Nh2 Qa7 Re2 Bf2 Qg1 Bfd4 Rg2 Bf2 Qe5 Qb4 Rg7+ Kf8 Qe6 Bb6 Nf2 Bc5 Qe8+
3Qnr2/6NB/1QP1p3/1RrNrpnB/8/Kbn4n/1BBq1p2/1qQ3Bk b - - 0 1 legal: proof: e4 b5 f4 g5 a4 gxf4 axb5 d5 b6 dxe4 Qe2 c6 Qd1 c5 g4 Nc6 h4 Bd7 b4 Nf6 b5 Ng8 g5 Bc8 g6 Nb8 Ra4 Bh6 Rb4 Bg5 hxg5 cxb4 c4 Kd7 d4 Kd6 Kd2 a5 Kc2 f5 Kb3 h5 b7 f3 b6 e3 g7 h4 d5 Ke5 g6 Kf4 c5 Kg3 d6 a4+ Ka2 b3+ Kb2 a3+ Kc3 h3 Kb4 e2 d7 e1R c6 a2 Be3 a1Q Qc1 b2 Nc3 b1N Bd3 Kg2 Nd5 h2 Nh3 Nh6 g8B Nf7 g7 Nc3 Bc2 Ra5 Ng5 Rc5 Bh7 Qb1+ Ka3 Na6 b8Q Nc7 g8B Ne8 Ne6 Ng5 Bg1 Re5 Bf7 Rf8 Ng7 e6 Qc7 Ba6 b7 Bc4 b8B Bb3 Bh5 Rh8 Bf2 Rf8 Rf1 h1N Bg1 Nf2 Qb6 Kh1 Re1 Re4 Be5 Nfh3 Bed4 f2 Re3 Qe7 d8Q Re5 Rf3 Qd6 Rf4 Ne2 Bb2 Nc3 Rb4 Qd7 Rb5 Qd6 Ne3 Qd2 Nd5
KR3r2/1nP2r1B/4RQ1q/n1p1nq1p/N1R5/r1pk1Q2/B2B2Bb/2n3B1 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 g5 h4 gxh4 d5 c5 exf5 b6 b4 Bb7 Na3 Bc6 Nc2 b5 dxc6 bxc4 b5 Kf7 Nb4 axb4 Qd4 Ke8 Qd6 Kf7 Qd1 Ke8 Kd2 Kf7 Ke3 Kf6 Ke4 e5 Kd5 h5 a4 d6 f4 b3 g4 h3 a5 b2 b6 b1R a6 e4 a7 e3 b7 h2 c7 e2 Ra6 e1N Be3 Nd3 Ne2 Ne5 Bg2 Qd7 Bg1 Nh6 Nc3 Nbc6 b8R Nhf7 Qf3 Nfd8 Na4 c3 Rab6 Rf1 g5+ Kf7 g6+ Kf6 g7 Nb7 g8B Nca5 Rc6 Bh6 Bh7 Rf8 Rb6 Qg7 Rc6 Bg5 Ra6 Qh6 Rb6 Bh4 Rb4 Bg3 Rc4 Kf7 f6 Rf2 Bg8+ Kg6 f5+ Kg5 f7 Bf4 f6 Kf5 Qe2 Bg3 Be4+ Kf4 Qg4+ Ke3 Beh7 Kd2 Qf3 Rf1 Ke6 d5 Ke7 d4 Ke6 d3 Kd5 Rc8 f8B Bf4 Be7 Rf8 f7 Bg3 Qf6 Ke2 Bd6 d2 Be7 d1N Qf3+ Ke1 Bg5 Nb2 Bf4 Rf2 Bd2+ Kf1 Qf6 Nbd3 Qf3 Nc1 Qf6 Rc8 f8Q Re8 Qf3 Bf4 Qf6 Rf8 Bb1 Bg3 Ba2 Rf7 Bh7 Rf8 Q3f5 Ke2 Qh3 Rf5 Qg4+ Kd3 Qf3+ Qe3 Bf2 Rf7 Re1 h1Q Bg1 Qh3 Re2 Bh2 Re1 Nab3 Re2 Nd7+ Kc6 Ne5+ Kb6 N3a5 Rf8 Rd8 a8B Rd6+ Ka7 Ra6+ Kb8 Qg4 Re4 Rf4 Rc4+ Qf5 Rc8 Rb6 Ka7 Rb3 Rb8 Ra3 Re1 Nd8 Bc6 Ndb7 Ka8 Rf8 Qg3 Rf2 Bg2 Rf3 Qh3 Qh6 Qg4 Rg3 Qd1 Rg7 Re2 Rgf7 Re1 Nd7 Re6 Ne5 Qf3+
1r4rB/1NK1Q3/p1bp2P1/p3Qr2/r7/nnr1QRR1/k4Q1N/1q1rQN2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 g6 e5 b6 a5 bxa5 Ke2 f6 exf6 Kf7 Ke1 Ke6 f7 Kd5 Nd2 Kd6 Nb1 Kc6 g4 Kb6 h4 Ba6 f4 Bh6 g5 Bf8 f5 Kc6 f6 Bg7 Bh3 Bb7 Bf5 gxf5 g6 Bc8 Bg5 Bh6 Bc1 Bg5 hxg5 Kc5 Rh6 Kb5 Rh1 Kc6 Kf2 Kc5 Kg3 Kc4 Kf4 e5+ Kg3 h5 f8Q e4 Kf4 d3 Ke5 f4 Kd6 a6 b4 d2 b5 h4 g7 h3 c3 h2 b6 e3 f7 e2 b7 e1R g6 f3 Bb2 f2 Ra3 f1R Nf3 Ne7 g8Q Nec6 Rg1 h1R Nh2 Nb4 Rg3 Re4 Qe1 Nc2 Qe7 Rf5 Qge8 Rg8 f8Q Nc6 b8Q N6d4 Qa7 Nb3 Qae3 d1R+ Nd2+ Kb5 c4+ Kb4 c5 Bb7 c6 Qb6 Bf6 Rb8 Bh8 Qb5 c7 Bc6 c8N Qd3+ Kc7+ d6 Na7 Rhf1 Qe5 R1f3 Ndf1+ Kc4 Qe8e7 Ref4 Ra2 Na3 Rf2 Qb1 Qff6 Bd7 Nc6 Rh4 Nd8 Bc6 Qa7 Rc3 Rff3 Rff4 Rd3 Nd2 Qd7 Kb3 Nb7 Ka2 Qde7 Nb3 Qfg5 Rf7 Rdf3 Rf5 Qg1 Rhc4 Qg5e3 Ra4 Qgf2+
1q1RB3/Q4rb1/rr2r1n1/1RpK1P2/k4B1p/1NR3QR/2p1nRQ1/1nn5 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 g5 axb5 d5 f5 dxc4 g4 Bb7 Nc3 Bc6 Nd5 Bd7 Nf4 gxf4 h3 Be6 g5 Bf7 Qb3 Bh5 Qd1 Bg4 hxg4 Bh6 Qe2 Bg7 Qd1 Bf8 Kf2 Kd7 b4 e5 d4 a5 g6 c5 g7 h5 g5 a4 b6 Kc6 d5+ Kb5 d6 h4 d7 e3+ Kf3 a3 Ke4 e2 g6 e1R+ Ne2 f3 b7 c3 Rg1 c2 Rg3 a2 Bg2 f2 Qd2 f1N Rc3 Ra7 Kd5 e4 Nd4+ Ka4 b5 e3 b6 e2 Nb3 Nc6 b8R Rh6 b7 Nd4 Rb1 Qc8 d8R a1R Qg5 Qc7 Bf4 Nd2 Qg3 Qc8 Rd1 Nb1 Rd2 Ra6 Rdd3 Rf6 Bf3 Rf7 Bh5 Ra3 Qg2 Qc7 Rh3 Ne7+ Ke4 Ra2 g8Q Rb2 g7 Ra6 Qh7 Ng6 g8R Bg7 Kd5 Qb6 Rge8 Qa7 Ree3 Qa8 Ref3 Qa7 Na1 Rbb6 Nb3 Qa8 Rf2 Qa7 Rbc8 Qb8 Rc6 Rd1 Rcc8 e1N Rc7 Nd3 Rcc8 Qa7 b8Q Ne2 Qc7 Re1 Rb8 Ndc1 Qg8 Rbf6 Rb5 Qb8 Qa7 Rb6 Qe8 Nd4 Qe3 Re2 Qd3 Ree6 Qdg3 Nf8 Bg6 Nde2 Bh7 Ng6 Bg8 Rc7 Bf7 Rce7 Be8 Reb7 Nd2 Rf7 Nb3
Q3R2K/5Qr1/1p4pp/bR1RB2n/Nqn2Pb1/6rQ/2bn2p1/kNR3R1 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 f5 c5 fxg4 c6 e6 cxd7+ Ke7 h4 g6 d4 Nc6 h5 Bg7 d5 Nb8 d6+ Kf7 h6 Bf8 Bg2 Qf6 Bd5 Qg7 hxg7 exd5 Kd2 Kf6 Kd3 Ke5 d8R c5 e4 d4 a4 g3 a5 b6 a6 b3 a7 b2 d7 h6 Na3 b1Q+ Nc2 g2 Bb2 Nc6 Qf3 Na5 Qh3 Nf6 g8Q Nh5 Ne2 Rh7 Rg1 Rf7 Nc3 c4+ Ke2 d3+ Ke3 d2 Na3 Rh7 Qf7 d1B f3 Bb4 f4+ Kd6 e5+ Kc5 e6 Bb3 Ncb5 c3 e7 c2 Ke4 c1N+ Ke5 Bc2 e8R Ncb3 Nc3 Nc4+ Ke6 Nbd2 Ke7 Rb8 Kf8 Kd4+ Kg8 Rg7+ Kh8 Rb7 a8Q Ra7 Re5 Ra5 Ree8 Rg5 Na4+ Bc3 Re5 Rg3 Rb5 Kd3 Re8 Ba5 Bd4 Qb4 d8R Bg4 Rae1 Bcd1 Nb1 Kc2 Rdd5 Kc1 Nac3 Kb2 Be5 Bc2 Rc1 Ka1 Na4+
Qq6/r2bQB2/R2Npb2/3r2pK/1B2np2/B1Pn1k1N/Qr2q2p/B1B5 b - - 0 1 illegal: No proof kernel
4b1NN/Q6r/BPqBqp1n/2r2n2/r1Q1B2R/2p3pQ/1k2B1pb/3KB3 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 e5 f4 d5 fxe5 dxc4 b5 b6 Ra3 Qd4 Rb3 Qd6 Rb4 axb4 a5 Qf6 axb6 Qd8 d4 Kd7 e4 Ke6 h4 c5 d5+ Kd7 b7 g5 h5 g3 d6 Ke6 h6 g2 d7 b3 b6 f6 h7 c3 Bd2 c4 Rh4 g4 Nh3 g3 Qc1 b2 Kd1 Bc5 Be1 Na6 b8Q Qe7 d8B Bb7 Bc7 Be3 Qa7 Bc6 Bd6 Nh6 Be2 Bg1 Qf4 Rhc8 h8Q Nc5 Qh7 Nb7 Ng5+ Kd7 Qh8 Bh2 Nf7 Ke6 Qh7 Bb5 Nh8 Be8 Qc1 Rc5 Qc2 Kd7 e6+ Kc6 e5 Kd5 Qb3 Qd7 e7 Qc6 e6 c2+ Kd2 c1R Qb5 Rc2+ Kd1 Rc3 Qb4 Re3 Qf5+ Re5 Qh3 Rg5 Qb3 Rg7 Qc3 Rh7 Qc2 Ng4 Nc3+ Kd4 Nd5 b1Q+ Qc1 Qf5 Qc2 Bf7 e8B c3 e7 Qe6 Qb3 Bh5 Bd7 Be8 Bc8 Ke4 Nf4 Kd4 Nfg6 Ke3 Qc4 Nh6 Qb8 Ra4 Qa7 Nd8 Ba6 Ndf7 Bc8 Nf5 Ba6 Bd7 e8B N7h6 Bf7 Be8 Ne7 Qe5 Bfh5 Qee4 Qf7 Qe6 Bhg4 Ke4 Ng8 Kd4 Bed3 Kd5 Be4+ Kd4 Bb7 Kc4 Be2+ Kb3 Bba6 Ka2 Qfc7 Kb2 Qf7 Qed7 Qd5 Qe6 Qc4
3N1b1Q/3pP1r1/Q1QB2n1/q4q1b/1p2Q1k1/B3pp1R/4Rn2/RQr1n1K1 b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 dxc5 e6 e4 Nh6 b4 axb4 f4 Be7 f5 Ng8 e5 Bf8 Bh3 Ra3 f6 Ra8 Bf5 exf5 e6 Rh6 e7 Ra3 Nd2 Rh8 Ndf3 Ra5 Ng5 Ra8 Ne6 fxe6 Bb2 Kf7 Ba3 Rh6 Bc1 Rh8 Kf2 b5 h4 g5 c4 e5 a4 Ke6 c6 e4 c7 f4 a5 Kf5 a6 b3 a7 b4 c5 b2 h6 b1Q h7 g4 f7 Qb3 h5 Qa3 c6 Nf6 h6 Qd3 Ne2 g3+ Kg1 g2 Rh3 e3 Ba3 Ne4 Qb1 Nf2 Nd4+ Kg4 Ne6 Bb7 c8Q Rg8 h8B Qf5 h7 Qda5 c7 Bf3 Nd8 Nc6 Qa6 Ne5 c8Q Rg7 Qcc6 Rc8 a8Q Ng6 Qce4 Bd1 Q8b7 Rc1 Qbc6 Rg8 Be5 Rg7 h8Q Be2+ Kh2 g1N Bd6 Nf3+ Kg2 Ne1+ Kg1 Kg5 Ra2 Bh5 Re2 f3 Bc5 Rh7 Bd6 Bh6 f8R Bg7 Rf6 Bf8 Re6 Rg7 Re5 Rh7 Rd5 Rg7 Rdd2 Nfd3 Ra2 Nf2 Qed3 Kg4 Ra1 Kg5 Qdd5 Kg4 Qde4+
R1NnRq2/nr4QN/R2RppN1/pk4rq/1b6/6n1/KP4p1/Q4RBr b - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 axb5 gxf4 e4 c5 g5 Bb7 Bc4 cxd4 Bf1 d3 Be2 d4 Bg4 Bd5 exd5 hxg4 Kd2 Kd7 h4 g3 c4 f6 h5 a6 c5 e6 b6 g2 g6 f3 c6+ Kd6 g7 Kc5 h6 f2 h7 f1R c7 Re1 c8N Re3 d6 Kc4 b7 Ra7 d7 Bd6 Nf3 Ne7 g8Q Nf5 Nh4 Nc6 b8R Rg3 Ng6 Bb4+ Nc3 Rb7 Qg7 Qf8 d8R Rg5 Rd6 Ng3 Rf1 Nd8 Ra8 Kc5 Qa4 Kc4 Kd1 d2 Kc2 d1Q+ Kb1 d3 Ka2 d2 Ne4 Qh5 Qa3 d1N Be3 Kb5 Bg1 Rf5 Ng5 a5 Rc1 Rd5 Rcc6 Rf5 Rca6 Nc3+ Ka1 Nce2 Kb1 Nd4 Qa1 N4c6 Ka2 Na7 Qc1 Rg8 h8R Re5 Nh7 Rg5 Qh6 Rgg7 Qa1 Rgc7 Rg8 Rc4 Rh8 Rh4 Qg7 Rh1 Rg8 Qe7 Re8 Qf7 Nb6 Qf8 Nc8
1k3N2/5p1p/BKn1q1Q1/rbPpp3/2rR1n1Q/q1B1N2n/2BN1N2/n2N4 b - - 0 1 legal: proof: f4 b5 b4 g5 d4 c6 a4 e6 axb5 Bg7 h4 gxh4 f5 Bf8 f6 d5 e4 Be7 fxe7 Kd7 Ra3 Qb6 Rd3 dxe4 d5 Qa5 d6 Qd8 Rd5 cxd5 Ke2 a5 Ke3 h3 Kd4 e3 Kc5 e5 e8B+ Ke6 c4 a4 g4 e2 b6 e1Q b7 h2 d7 a3 g5 a2 g6 a1N b5 Ke7 b6 Ra3 g7 Rg3 Nc3 Ke6 Bb2 Rf3 Qd3 Qd1 Qg6+ Ke7 Nh3 Rf6 Nf2 Qb1 Ncd1 Nc6 b8N Re6 b7 Nh6 Bc3 Qf5 Na6 Ng8 b8N Nf6 Nb4 Ba6 Nc2 Bb5 Nce3 Qa5 g8N+ Kd8 Be2 Kc7 d8Q+ Kb7 Nd7 Nh5 Nf8 Nf4 Qh4 Kb8 Nf6 Qa3+ Kb6 Rd6 Re1 h1N N6e4 Qe6 Nd2 Rd8 Rg1 Rc8 Rg4 Rc7 Bd7 Ra7 Bd3 Ra5 Bc8 Rg8 c5 Rg7 Nfe4 Nf2 Ba6 N2h3 Bc2 Rg8 Nef2 Rg7 Qgf6 Rg5 Qg6 Rh5 Qhg5 Rh4 Q5f6 Nh5 Rb4 Rc4 Qh4 N5f4 Bb2 Rc3 Rd4 Rc4 Bc3
Rn2bn2/q1pN1p2/5n2/R2QrB2/QK4p1/R4pbP/1kqn1R1Q/4N1R1 b - - 0 1 legal: proof: a4 a5 f4 e5 h4 exf4 b3 b5 Ba3 h6 Be7 d5 c4 dxc4 Bg5 hxg5 axb5 Ra6 Ra4 Re6 Ra2 Re3 Ra1 Rh3 gxh3 Qd6 Rh2 Qd5 Rh1 Qd8 e4 Kd7 d4 Ke6 Kd2 a4 Kc3 g4 d5+ Ke5 h5 g5 b6 g3 b7 a3 d6 g4 b4 a2 d7 g2 b5 Ne7 b6 Qe8 d8R Nec6 h6 Be7 h7 Rg8 h8R Bd7 Na3 Bh4 Nc2 Nd4 Rh5+ Rg5 Ne1 Ne6 Kb4 c3 Bd3 Kd4 e5 Nf8 e6 c2 e7 c1N Qd2 Ne2 Bf5+ Ke5 Qc2 Nc3 Ngf3+ Kd5 Qf2 g1Q Qh2 Bg3 Ne5 Kd4 Rc8 Ba4 Nd7 f3 Rd8 Qe3 Rg1 Ne4 Rc8 Qd8 e8Q Nf6 Qe6 Bc6 Qb3 Qde8 Qa4 Q8e4 Re8 Qc2 Re5 Qec1 Re2 Qe3 Rf2 Bb5 Rb1 a1N Rb3 Bc6 Ra3 Nb3 Be6 Rg7 Ra5 Nd2 Bf5 Rg5 Ne5 Nbd7 b8R Bb5 Rba8 Nb8 b7 Be8 Nd7 Rh5 Be4 Re5 Bd3 Qe2 Bf5 Qa6 Nc5 Nbd7 b8Q Qa7 Qb6 Nb8 Qbc6 Nb3 Kb5+ Kc3 Qd7 Kb2 Kb4 Nd2 Qd5 Re7 Nd7 Re2 Rd3 Re5 Ra3
1rN5/1bk4p/RrQ2b2/2K2Pb1/1Q1B1BbQ/Np1p1Bn1/5p2/3nBrB1 b - - 0 1 illegal: No possible last move
nNk1B1b1/1N6/3p2p1/1Q1rr1nR/B1N2Nqp/b2Pbp2/pQN1Q3/4K3 b - - 0 1 legal: proof: c4 b5 cxb5 e5 b4 Qh4 a4 Qh5 f4 exf4 b6 Ne7 b7 Qc5 a5 Qd4 b5 Qb6 axb6 Ng8 h4 g5 h5 Kd8 Bb2 Ke7 Bd4 Kd8 Bf2 Ke8 Bh4 gxh4 g4 Ba3 g5 Nc6 g6 Bd6 g7 Nb8 Ra3 Bc5 Rg3 Bf8 Rg6 hxg6 e4 Kd8 h6 a5 h7 c5 e5 f5 e6 f3 Nh3 f4 Rg1 a4 Qe2 a3 Rg5 a2 Rh5 c4 Na3 c3 Nc4 Nh6 g8Q c2 Qg7 c1B Qb2 Na6 b8N Ba3 b7 d6 b6 Nc7 Na6 Re8 h8N Nf7 b8N Ng5 Nb4 Ra5 b7 Na8 Nc2 Rd5 e7+ Kc7 d3 Be6 Bg2 Bg8 Nf7 Be3 Nd8 f2+ Kf1 Rf8 e8B Rff5 Bh1 Rde5 Bhc6 Rd5 Ba4 Rfe5 Qg4 Re4 Qe6 Ree5 Ke2 f3+ Kd1 Ba7 Nf4 f1Q+ Kd2 Qh3 Kd1 Be3 Ke1 Rf5 Qe4 Qg4 Qe6 Bc1 Qe2 Rfe5 Nd7 Rb5 Nf6 Kb8 Nd7+ Ka7 b8Q+ Ka6 Qa1 Rbd5 Qab2 Be3 Q8b5+ Ka7 Ndb6 Kb8 Nb7 Kc7 Nd7 Kc8 Nb8
3QK2N/Pb1p2p1/6pk/ppn1pNb1/6Rq/4b2n/Rr3QQ1/3QNQ1B b - - 0 1 illegal: No proof kernel
2kq2N1/K2Nb3/1rR4p/Bq1bb1r1/nn1n1N1r/1BB4P/2QrN3/r2N3Q b - - 0 1 legal: proof: d4 g5 b4 c5 f4 gxf4 a3 cxd4 Ra2 e5 a4 b5 Ra3 e4 Rf3 exf3 axb5 Qc7 Nd2 Qb6 Nb1 Qd8 Kd2 a5 Kd3 f5 Kc4 d3 g4 f2 e4 a4 g5 d2 h3 f3 b6 d5+ Kb5 Kd7 c4 a3 e5 a2 b7 a1B g6 f4 g7 d4 c5 d3 Nc3 Na6 b8B Be7 Bc7 Nh6 Kb6 Bb7 g8N Bd5 b5 Rb8+ Ka7 Rb6 c6+ Kc8 e6 Nf5 Nge2 Nb4 Bb2 Nd4 Qc2 h6 Nd1 Rh7 Qb1 Rg7 Bc3 Rg5 Bg2 f1Q Rh2 Rb8 Ba5 f2 b6 f3 c7 Bb2 Nf6 Ba1 Nh5 Bb2 Nhf4 Ba1 Ne3 d1N Qc1 Nb2 Nd1 d2 Rh1 Bf8 e7 Na4 e8N Be7 Nf6 Bb2 Ng8 Ba1 Ng3 Qb5 Nge2 f1R Qb1 f2 b7+ Kd7 Qc2 Re1 c8N f1R Nb6+ Kc7 Bf3 Rfg1 Bh5 R1g4 Bf7 Rh4 Rg1 Bc6 Bb3 Bd5 Rg3 Bb2 Re3 Reg1 Re6 Re1 Ne3 Ra1 Rf6 d1R Rg6 Rd2 Nd1 Qde8 Rf6 Rd8 Re6 Rd6 Nd7+ Rb6 Rf6 Qc8 b8Q+ Kd8 Qa8 Kc7 Re6 Qd8 Nb8 Kc8 Rf6 Be6 Qh1 Bd5 Nd7 Nf3 Bd4+ Bc3 Bc5 Be5 Bd4+ Rc6 Bb2 Nd4 Bc3 Rb6 Rc6+
2BrkrQ1/n3R1K1/Q3R2N/1qpnBr1B/2P1n2q/1Rb3bb/4b2q/3BB3 b - - 0 1 illegal: No possible last move, all moves rejected
1qNR1R2/6K1/1qNp3r/1n3B2/N1kPb1n1/R1b5/r1qQRbQR/2b3rn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 Ba3 exf4 axb5 c5 b6 Rh7 b5 Rh8 Bb4 cxb4 Kf2 Ke7 c4 Kd6 h4 Kc5 e4 a5 d3 f5 h5 g5 h6 d6 e5 b3 h7 b2 e6 a4 e7 f3 Kg3 f4+ Kh2 a3 e8Q a2 b7 f2 b6 g3+ Kg2 g4 Qf3 Nf6 Rh4 Bh6 Rh2 Na6 b8R Nc7 b7 Bf5 Nc3 b1Q Nge2 Be4 Nd4 Qb6 Nc6 Nb5 Qe7 Qdc7 Rd8 Qb8 Re1 a1B Re2 Ra2 Qc7 Rg8 h8R Rg6 Rhf8 Bb2 Qf7 Bc1 Qh7 Bg7 Qh6 Bh8 Ne5 Kb4 c5 Bg7 Qg5 Rh6 c6 Bh8 c7 Bg7 Re1 Kb3 Be2 f1N c8N Kb4 Na4 Kb3 Kh1 Bh8 Qg2 f3 Qd2 Bg7 Qf2 g2+ Kg1 Bh8 Nc6 Ng3 Bf1 Nh1 Re2 Q8a7 b8R Qa8 Rb7 Qb8 Rh7 Bg7 Rh3 Bh8 Kh2 g1R Qg2 f2 Ra7 Bg7 Rh4 g3+ Kh3 Ng4 Ra6 Bgb2 d4 Bc3 Rh5 Kc4 Kh4 Ba3 Kg5 Bc1 Qf3 g2 Rh2 Bd3 Qe4 Bc2 Qg6 Be4 Ra8 Ne5 Kf6 Ng4+ Kf7 Qa6 Re3+ Bd3 Nc5 Nf6 Qe2 Qab6 Qe4 Ng4 Kg7 Ba3 Qc2 Bb2 Be2 f1Q Ra3 Qc1 Qd2 Qc2 Na4 Bc1 Bf3 Rf1 Be2 g1B Qg2 Bf2 Bf3 Re1 Be4 Rg1 Bf5 Be4 Re2
k3Q1r1/3Bb1rQ/b2nb3/1N2nn1R/1Q3nnB/2Kb2pq/1BR3P1/4BrB1 b - - 0 1 illegal: No proof kernel
B7/B1K1RQn1/b7/B1bRQ2p/1n2rrk1/4bN1P/rQb2n2/2r1QQqr b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Nd2 e4 Ndf3 exf3 Ra4 Qf6 Ra1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd3 Kf5 e4+ Kg4 c4 h5 b4 a5 e5 f5 e6 a4 b6 a3 e7 a2 e8Q Nc6 c5 Nge7 b5 Ba6 b7 Qb6 Qe1 f2 b8Q f3 Bd2 f4 Ba5 Nf5 Rd1 a1B Qe8e5 Ng7 g3 Bd6 Bg2 f1R Qf8 f2 Nf3 Rg1 Rd2 f1R Re2 Nd8 c6 Bc5 c7 Nc6 Rd2 Rh6 c8Q+ Re6 Qcb8 Bc3 Re2 Bd2 Re4 Be3 Qf7 Bb7 Qff6 Qa7 b6 Bc8 b7 Nb4+ Ke2 Re7 Qa6 Bf5 Qh8 Re6 b8B Qb6 Ba7 d3+ Kd1 d2 Ke2 d1R Qb2 Rd6 Re7 d4 Qb8 Re6 Qe5 Rc1 Qc4 Bb1 Qb5 Nc2 Kd3 Rf2 Kc4 d3 Kd5 d2 Qbf1 d1N Qb8 Re4 Q8e5 Qb3+ Kc6 Nb4+ Kb7 Bc2 Kc7 Qg8 Ng5 Rc4 Bd5 Re4 Nf3 Rf8 Ba8 Rfg2 Qed4 Nf2 Qe5 Kh3 g4 Rf6 g5 Kg4 Nh4 f3 g6 Rff4 Qf6 Nd1 Qfe5 f2 Nf3 Rg3 Qfe2 f1B Q2f2 Ba6 Qff1 Nf5 g7 R3g2 Qd5 Nf2 Qde5 Qf7 g8Q+ Qg6 Qf7 Ng7 Qd3 Rf1 Rg1 Rg3 Rg2 Rh1 Qdf1 Qg5 Rg1 Rg2 Qba2 Nh3 Qd2 Bd1 Qb5 Qh4 Qf2 Bb3 Rd1 Qg3 Qe1 Rf2 Rd2 Qg1 Rd5 Bd1 Qb1 Ra2 Qbf1 Bc2 Qbb2 Nf2 h3+
bNR2rn1/1p4br/3nQq2/bPR4k/5rN1/1B2n3/N2Rb2K/Qrr3NN b - - 0 1 illegal: Other
r1N1kn1R/1b1qr1Nq/N2R3b/1n3b2/5pr1/Qq2q3/1BN1QPN1/3R2Kb b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 axb5 e5 h5 e4 h6 gxh6 e3 h5 Bc4 h4 Bd3 exd3 Kf1 f5 b4 a5 g4 h5 c4 d5 g5 f4 e4 d2 b6 a4 b5 a3 b7 h3 g6 h4 e5 d3 e6 d4 b6 h2 e7 a2 c5 h3 g7 Na6 b8Q Qd7 b7 Nc7 c6 Rh4 Qg4 d1B Qg5 d2 Nc3 d3 Nce2 Rg4 Qa5 Nf6 g8R Bc2 Qa3 Nb5 c7 Nh7 Nf3 d1Q+ Ne1 d2 Rh8 Bf5 Nd4 Qb3 Ng2 Qe3 Nc2 Ra7 Rg1 h1B Bb2 h2 Rd1 a1R Qa8 Ra2 b8N Bb7 c8N Ra1 Na6 Ra2 Re1 d1Q Qd3 Ra1 Qe2 Q1d3 Rd1 Qb3 Qb8 Ra8 Qd6 Ra4 Qa3 Re4 Rg8 Re5 Rg6 Bh6 Rgd6 Kf7 e8N Nf8 Ng7 Re7 Nge1 Bhd5 Ng2 h1Q Qa5 Qh5 Rh1 Qg6 Qa1 Qh7 Qa3 Bdc6 Kg1 Bd5 Ne6 Ke8 Ng7+ Kd8 Rf6 Qg6 Kh2 Bg5 Kg1 Bde4 Rh7 Bh6 Rh8 Qh7 Rfd6 Bf3 Kf1 B3e4 Nge1 Bh1 Ng2 Qd4 Ne6+ Ke8 Kg1 Qde3 Ng7+
1B1n2q1/2pN1B1B/2P2NQ1/nr1n1QR1/1B2r2n/3B4/r1pb1N1n/2bb1k1K b - - 0 1 illegal: No possible last move, all moves rejected
QR1k2Nr/r1p1b3/rnqb1bp1/R1b1R3/8/2P2Q1N/NBbN1nNK/7n b - - 0 1 illegal: No possible last move, all moves rejected
QbQKB1R1/4N2k/5bRN/6qQ/4R3/n1rRR2p/b4rpP/bn1bq2n b - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 d5 c4 Bd2 c3 Bg2 cxd2+ Kf1 e6 Bh3 exd5 Kg2 d4 Kg3 Bc5 Bf1 Bb4 Kg2 Bf8 Kg3 Kf7 Kf4 Kg6 Ke5 a5 c4 h5 b4 d5 e4 a4 f4 a3 c5 g3 f5+ Kh7 b6 g5 f6 d3 c6 g4 b5 h4 b7 d4 c7 g2 f7 h3 b6 g3 Ne2 g1B Bg2 a2 Bf3 g2 Nbc3 Be6 c8Q Nf6 Bh5 Na6 b8R Nb4 b7 Ra3 Nd5 Be7 f8Q Nc2 Ng3 Rc3 Be8 Na3 Nf5 Nh5 Nh6 Ng3 Qh5 d1N Rc1 Bg5 Ne7 a1B Rc2 Bc4 Re2 d2 Re3 d3 Ra8 Bf4+ Kf6 Ba2 Ra6 Bb8 e5 Rg8 Re4 Bd4 Rf1 Nh1 Rf3 Qd5 Rd6 Rg5 Rg3 Rg7 Rg6 Qa5 Rd5 Rf7+ Ke6 Qc5 Kd7 Rf2 e6 Bf6 Kd8 Qb5 Rd7 Qg5 Rd6 Rc4 Rd7 Nc3 Rd5 d1Q Rd6 d2 Rd3 Bg3 b8R Qe1 Ree3 d1B Rb4 Rc7 Rbe4 Ncb1 Qa8 Bh8 Qf5 Rc4 Qc5 Bhb2 Qcc8 Bb8 Bd7 Qg3 Neg8 Nd2 e7 Ndb1 e8R Qg5+ Ne7 Bf6 Reg8 Rc3 Be8
Qr1rnqk1/1b3p2/Q4PpR/RnQ1b2Q/1b4K1/2N1q1N1/3q1bBb/6NQ b - - 0 1 legal: proof: d4 b5 c4 e5 g4 h5 a4 hxg4 Be3 d5 axb5 dxc4 d5 Qf6 Bc5 Qd8 Bd4 exd4 f4 a5 Kf2 c5 Kg3 g6 e4 c3 h4 d3 b4 d2 h5 c2 b6 c1B h6 a4 b5 a3 b7 c4 f5 c3 e5 a2 h7 c2 d6 Bh6 b6 Kf8 d7 Nf6 e6 Nc6 b8Q Bb7 Qe5 Ne8 f6 Ba3 Bg2 c1Q Nc3 Be3 Rh6 Nd4 Qc5+ Qe7 d8N Bb4 Nc6 Nb5 Nd4 Rd8 Nf5 Bf2+ Kf4 g3 Qh5 Qe1 Kg4 Qe3 Qh1 Rg8 h8Q d1Q+ Nce2 Qa4 Nc3 Qc2 Qh7 Qcd2 Qh8 Bd5 b7 Bc6 b8Q Bb7 Qbc8 Qed6 Bf3 g2 Ng3 Qe7 Q8c6 Qed6 Qa6 Qe7 N1e2 g1B Bg2 Bh2 Ng1 Rb8 Rh3 Rd8 Qhh5 Rh8 Rh4 Kg8 Rh3 Qf8 e7 Nec7 e8Q Rb8 Qec6 Ne8 Qa8 Rd8 Qca6 Rb8 Rf1 a1B Rd1 Bb2 Ra1 Rd8 Ra5 Ba1 Nce2 Be5 Nc3 Rb8 Q8a7 Qfh6 Nge4 Nec7 Qg5 Kh7 Qa8 Rhd8 Qf5 Kg8 Ng3 Qf8 Rh6 Ne8 Qh5
3Qr3/1b1pr2N/qp3b1q/r1nP1B1n/NRN1N1bN/8/3RQK2/nb1Q3k b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 b6 gxh4 b4 Ba6 b5 Be7 b7 Bd6 b6 Bc5 Bb2 Bf8 Bd4 Bc4 Be3 Na6 b8N Bd5 Bd4 Bb7 Bc5 Bc8 b7 Be7 Be3 Bf8 Bb6 cxb6 e4 Ke7 c4 Ke6 g4 Ke5 g5 f5 d3 h5 c5 f3 c6 Kf4 c7 Kg3 d4 f2+ Ke2 h3 g6 f4 g7 f3+ Ke3 h4 e5 h2 d5 h3 e6 Qh4 e7 Nf6 e8N Nc5 g8Q+ Bg7 Ra4 a5 Rd4 a4 Qd3 a3 Qgh7 a2 Qhe4 a1N Na6 Nh5 b8Q Bf6 Na3 Bb7 Qd8 Ra7 Be2 Kg2 c8N f1R Rb4 Re1 Ncd6 Rg8 Qe6 f2 Ne4 f1Q Qd1 Rg7 Nc4 Re7 Nf3 Ra8 Nac7 Ra4 Nb5 Ra5 Ng7 Re8 Nfg5 Re7 Qe5 Re8 Nh7 Qhf4+ Kd4 Qh6 Bd3 Qe2 Rf1 h1B Nbc3 h2 Rf2+ Kg1 Nf5 Bf3 Bc2 h1B Na4 Bg4 Nh4 Bhf3 Bb1 Kh1 Rg2 Qa2 Rd2 Bf5 Ned6 B5g4 Bf5 Be2 Ne4 Bd3 Rg2 Bb1 Re2 Nf4 Ke3 Nh5+ Kf2 Re7 Qd3 Qa3 Rd2 Re3 Qe2 Re8 Qd4 Qd3 Ncb2 Qa6 Nc4 Re7 Neg5 R3e6 Ne4 Re5 Qdd3 Re8 Qb3 R5e7 Qbd1+
2Q1BQr1/1k1B4/Rrp3b1/BR1B2bn/BRP2p2/q4q2/b1n5/qNn1n1K1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 g5 Nc3 e5 Nd5 Rh7 Ne3 Rh8 dxe5 gxf4 g5 Qe7 Ng4 hxg4 Rb1 Qf6 Ra1 Qd8 Kf2 b5 e4 d5 a4 Kd7 c4 Kc6 h4 f5 e6 g3+ Kg2 d4 e5 b3 a5 b4 g6 b2 e7 b1Q e8R f3+ Kh3 g2 Kh2 b3 g7 b2 h5 f4 e6 f2 h6 d3 h7 d2 a6 Qe7 a7 Nd7 Ne2 g1N Qe1 d1Q Qc3 Qa3 e7 Ngf6 g8B Rb8 Qd3 Nh5 Bh3 Bh6 Bd2 Kb7 Ba5 Nc5 Qd8 Bg5 Nc3 Ne2 Bd7 f1N+ Kg2 Qba2 Nb1 Nc1 Kg1 Qdf3 Bge6 N5d3 Ba4 Ne1 Bed7 Rf8 h8Q Ne3 Qf6 Rg8 Qf8 N3c2 a8B+ Ka6 Rh4 Rb6 Bd5 c6 Rh3 Kb7 Rg3 Qd1 Rb3 Qe2 Rb4 Qef3 Bf5 Be6 Rb5 Bf7 Bd7 Bg6 Rb4 Qac3 Rb5 Qab3 Ra3 Qbb4 Rb3 Qa3 R3b4 Qf6 Qc7+ Ka6 Rb8 Q6c3 e8B Qa1 Rc8 Qca3 Qd8 Ka7 Ra8+ Kb7 Nd2 b1B Ra6 Ba2 Nb1 Qfd3 Bh1 Qe2 Bd5 Qef3 Qc8#
3B2rQ/1n1K2Q1/rp2nQ2/q5qQ/kB1b4/nPq1R1NQ/2B2pb1/2r1r2R b - - 0 1 illegal: No possible last move, all moves rejected
5n1n/3Nbb2/QNQ1np1B/b1r1pPN1/Bqb5/1n2Q3/Nk3r1R/1nN3K1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 dxe4 Ra3 g5 Rb3 gxh4 axb5 Na6 b6 Nb8 b5 Kd7 Rb2 Ke8 Rb4 cxb4 c4 Kd7 f4 Ke6 Kf2 a5 d4 h5 g4 a4 b7 b3 c5 Kd5 g5 e5 b6 e3+ Kg2 f6 f5 b2 c6 h3+ Kh2 e2 c7 Kc4 g6 h4 d5 a3 g7 a2 d6 a1N d7 Qe7 d8N Ra5 Nc3 b1N Na4 Rc5 Qd6 Kb3 Qd7 e1B Qd2 Be6 c8N Nd7 b8N Bf7 b7 Nh6 Qg5 Ba5 g8Q Qd6 Qh5 Be7 Qe2 Nf8 Qg5 Qd4 Qe4 Qb4 Ncb6 Bc4 N8d7 Nf7 b8Q Rh7 Qc8 Nh8 Qef4 Kc2 Qf3 Nb3 Be3 Rh5 Nc3 Kb2 Nge2 Bf7 Kg1 h2+ Kf2 h3 Na2 Rh4 Qcb7 Rf4 Nec1 Bc4 Qa6 Bf7 Rg1 h1B Bb5 h2 Ba4 Bg2 Rd1 h1N+ Kg1 Bf1 Qc6 Nf2 Ne6 Bc4 Re1 Nd3 Re2+ N1d2 Qh6 Rf2 Ng5 Nf4 Qh3 N4e6 Qh6 Rf4 Rh2 Rf2 Bf4 Nb1 Qh3 Be8 Qe3 Bg6 Nf3 Bh5 Bh6 Bf7 Ng5
Q3QKb1/7b/RN6/n1B3bB/b7/bnnQpnQp/1R2Pk1B/qQr2r2 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 c5 a4 cxd4 axb5 f6 Nd2 gxh4 Ndf3 f5 g5 Nh6 Ne5 Ng8 Ng4 fxg4 Kd2 Kf7 Kd3 Kg6 Ke4 Kh5 Ke5 a5 c4 d5 f4 a4 b4 a3 g6 h3 g7 Kh4 f5 Kg3 c5 h5 c6 a2 f6 h2 f7 d3 b6 d4 c7 h4 b7 h3 b5 d2 b6 d3 Qa4 d1B Qa5 d2 Qd5 Bf5 c8Q Nd7+ Kd4 e5+ Kc4 e4 b8Q+ Kf2 b7 e3 Qd4 g3 Kd5 g2 Qc2 Bh7 Ke6 Ne7 g8Q Nc6 Qb1 Qa5 Ba3 Ba4 Bc5 d1N Nf3 g1N Ne5 Nf3 Qdd3 Nc3 Qe8 Rc8 b8B Rc7 Rg1 h1B Nc4 Qa6 Qg7 Na5+ Nb6 Be7 f8Q Bg5 Kf7 Qa7 Be7 Nc5 Bg2 Ncb3 Rc1 Rc4 Bh2 Rc6 Qa8 Rc8 Qe8 Rf8+ Ke6 Qa6 Bc5 Rf6+ Ke7 Rcc6 Qbc2 Bg8 Rab1 a1B Rb2 Bh7 Rcb1 Bg8 Ra2 Bb2 Qcd1 Ba3 Rbb2 Nh4 Bd5 Be4 Q1b1 Beh7 Bf7 Nf3 Bh5 Qc4 Qgf7 Qd4 Kf8 Rf4 Qff5 Qh8 Qd6 Qd4 Qdg6 Qd1 Qd3 Qa1 Qgf7 Rd4 Qda6 Nb1 Bcd6 Bb4 Qc7 Nc4 Qeg6 Bb5 Q6c8 Rd1 Qfd7 Rf1 Ra6 Nca5 Qce8 Rcc1 Bc5 Nc3 Qb1 Ba3 Qdd3 Ba4 Qg3#
n2Q1nK1/p1B1B1nB/P1k1R2Q/2b2pB1/1r2b3/1q5N/1nb1B3/nNr2bN1 b - - 0 1 legal: proof: b4 d5 e4 dxe4 g4 g5 f4 c5 bxc5 h6 a4 gxf4 g5 h5 Ra3 Qd4 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 h4 e5 c4 b5 d4 f5 d5 g3+ Kg2 e3 Kf3 b4 d6 e2 h5 g2 g6 b3 h6 b2 g7 Na6 h7 Ne7 g8B Kc6 a5 Ng6 d7 Qb6 d8B Nc7 a6 Qb3+ Qd3 Rb8 Qe3 Na8 Be7 Rb4 Rh6 Bb7 Bd2 Rb5 Ba5 Rb4 Bg5 Bd6 Bc7 Nf8 Re6 e1N+ Ke2 Nd3 Kf3 Bc8 Be2 Bd7 Bcd8 Bc8 Bde7 Bb7 Qd2 Kc7+ c6 Bc5 Bf7 Rg8 h8B Rg6 Be8 Rh6 Bf7 Rh1 Bg6 Kb6 Bh7 Kc7 Nc3 b1B Qe3 Bc2 Nb1 Nb2 Bhf6 Kb6 Bd6 Bc8 c7 Kc6 Bfe7 Bb7 c8N e4+ Kf2 f3 Kg3 f2 Kf4 f1B Ke5 Bb6 Kf6 Bc5 Qd2 e3 Kg7 Ra4 Kg8 Rb4 Nf3 g1N Nb6 Nh3 Ng1 Nf4 Nd5 Nh5 Nf4 Ng7 Nfh3 Kd7 Qc1 Bbe4 Qd2 Kc6 Bc7+ Bd6 Bh5 e2 c5 e1N Be2 Bd1 Qf4 Nc2 Qh4 Na1 Qh6 Kd5 c6 Bc5 Bcd6 Bdc2 c7 Kc6 c8Q+ Kd5 Qb8 Kc6 Qd8 Bfg2 Nf3 Rc1 Nfg1 Bf1 Bc7+
1B2RRQr/RB2p3/2n1P2R/nQ6/2rRnn2/N1p3q1/3Q1kbr/K4bbr b - - 0 1 legal: proof: f4 b5 g4 g5 c4 d5 a4 dxc4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 d4 Kd7 Kd2 Ke6 Kc2 Kd5 Kb1 Ke4 h4 c5 b4 f5 d5 a5 h5 f3 g6 a4 h6 c3 d6 g3 d7 f2 h7 c2+ Kb2 g2 g7 f4 b6 f3 e3 c4 b7 a3+ Ka2 Qc7 d8R Bh3 b5 Qg3 b6 Nf6 g8R Bh6 Qd2 Nc6 Ne2 g1N b8R Bg2 b7 Nh3 Nd4 Nf4 Nb5 c3 Rd7 Ra4 Rbf8 Rc4 b8Q Bg7 Be2 f1R Rh6 f2 Qb6 Rh1 Bf3+ Ke5 e4 f1B Rd4 Rh2 Kb3 a2 Na3 Ng4 Re8 Nf2 Rgf8 Bf6 Bg4 Bh4 Bc8 Bg5 Bb7 Bf6 Rb1 a1N+ Ka2 Nb3 Ra1 Nba5 Qa6 N2d3 Qb5+ Nc5 Qe2 Bh4 Be3 c1R Qd2 Be2 Bf2 Rch1 Be3 Bef1 Bf2 Rg8 h8Q+ Bf6 Qh7 Rh8 Qg8 Ne2 Qdb2 Kf4 e5+ Kf3 e6 Ne4 Qd2 Nf4 Kb1 Be5 Ra2 Bc7 Ka1 Bb6 Be1 Qg6 Bh4 Qg3 Bf6 Ba7 Be5 Bc5 Bb8 Bb6 Rd5 Bg1 Rd4 Nb3+ Kb1 Nf6 Nc2 Ne4 Ra7 Nba5 Na3 Rh5 Qc2 R5h2 Ka1 Ke3 Qd3+ Kf2 Qd2+
2Q4B/b5q1/BnB1R1pr/1N2BbKb/2r3PN/2n1Q1n1/3rNp1B/1rk1n3 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 e5 d4 cxd4 f4 exf4 Ra3 h4 Rg3 hxg3 Kd2 Ke7 h4 Kd6 e4 Ke5 c4 d5 h5 f5 b6 a5 h6 g2 b5 f3 c5 Kf4 h7 a4 b7 f2 e5 d3 b6 a3 e6 a2 e7 a1R e8B d4 c6 Qg5 c7 Ne7 Rh3 Nd7 b8Q Nd5 b7 Nc3 Bf7 Nb6 Na3 Rb1 Rh2 Bc5 Nf3 g1N Ba2 Ra4 Nh4 Rc4 Bg2 f1N+ Ke1+ d2+ Kf2 Ng3 Bc6 Nf3 Qb3 Ne1 Nb5 d3+ Nd4 Bd7 Qc8 Be8 b8B Bh5 Bb2 d1R Qa3 d2 Bb3 g6 Bba4 Qe7 Bab5 Qg7 Ba6 Nc2 Kg2 Ke3 Kh3 f4 Ne2 f3 Rh1 f2 Re1 Na8 Ba1 Ba7 Qc1 Nb6 Bb2 Nce4 Be5 Nc3 Qa3 Rb2 Qe7 Rdb1 Qa3 d1B Qb3 Re8 h8B Kd2 Qa3 Ne3 Qc5 Ng2 Qe3+ Kc2 Qe6 Ra2 c8N Kb2 Qg8 Bc2 Nd6 Bf5 Nb5 Re7 Qc8 Rb7 Rd1 Ne1 Rd6 Kc2 Re6 Kd1 Ng2 Rd2 Kh4 Rbd7 Kg5 Rb7 Ng1 Kc1 Bbd6 Qg8 Nh4 Rh7 Bb8 Qg7 Bbd6 Rh6 Bc7 Nf1 Bh2 Ng3 Be5 Kc2 Ne2 Kd1 Nf4 Kc1 Ne2+
3NK1k1/QR3Q2/1n1q2pn/1R4Pb/p1p4N/Q2R1Q1b/qQ6/1r1qbrnB b - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 h5 b3 b5 Bb2 h4 axb5 e6 f4 e5 Bd4 exf4 Bf2 Bd6 Bg3 hxg3 Ra3 Bb4 Ra1 Bf8 h4 f5 d4 Kf7 Kd2 c5 Kc3 a5 e4 g2 g5 a4 b6 g6 d5 f3 h5 f4 b7 f2 b4 f3 b5 Be7 b6 Ra5 d6 Ra6 e5 Bf5 h6 Bg4 h7 Nh6 d7 Qc7 d8Q Qd7 e6+ Kg7 Ra3 Nf5 Ne2 g1Q Bg2 f1N Nd4 f2 Nc6 Rf8 Nd2 N1g3 Nf3 f1B h8R Ra5 R8h7+ Kg8 Nh4 Qh2 Be4 Qd5 Qd6 Qa2 Nd8 Nd7 b8Q Bh5 b7 Nh6 Qa7 Bh3 b8Q Rb5 Qb3 Rf4 Rb1 Rf1 Bh1 Bf8 Qba8 Nb6 e7 Bg7+ Qf6 Qd6 Qd4 Be5 Qf3 Bf4 Qdd3 Be3 Rf7 Bf2 Qd2 Be1 e8Q+ Qf8 Rb2 Rb4 Rb7 Ne2+ Kc2 Ng1 Kc3 Rb5 Qe7 Qf4 Qb4 Qd6 Rab3 Qe6 Qa3 Qd6 Qef7+ Kh8 Kc2 c3 Qd4+ Qe5 Kd3 Qf6 Ke4 c2 Rd3 c1Q Qdf2 Qc6+ Ke5 Qd1 Q2g2 Qc7+ Kf6 c4 Rb1 Qb8 Ke7 Qd6+ Ke8 Rb2 Qc7 Kg8 Qge2 Rc2 Rb5 Rc1 Qeb2 Rb1 Qcf7+
R1nQ4/1BQr4/b2bp1Bn/5pR1/pk2rP2/1B1N1q1Q/2bnqr2/2K3BB b - - 0 1 legal: proof: e4 b5 b4 g5 h4 d5 hxg5 dxe4 a4 bxa4 Nc3 c6 b5 c5 Na2 Na6 Nb4 cxb4 Bd3 Nb8 Bc4 Qd7 Bf1 Qd8 f4 Kd7 g4 Kd6 d4 f5 Kd2 a5 c4 h5 b6 b3 g6 b2 c5+ Kc6 g7 b1B b7 a3 g5 h4 g6 a2 Qh5 h3 Ne2 Kb5 d5 h2 d6 Kb4 c6 Ra7 c7 Nd7 b8Q+ Nb6 d7 Ba6 c8B Nh6 g8B Bc2 g7 Qe8 Rg1 h1Q d8Q Qf3 Bb7 Nc8 Bb3 e6 g8B Qb5 Rg7 Bd6 Rg5 Qe5 Bb2 e3+ Kc1 Rh7 Bd4 Rd7 Bh7 a4 Rb1 a1N Qh3 Ra8 Qbc7 Rb8 Bg2 Qb5 Nc3 e2 Nd1 e1R Bh1 Qbe2 Bg1 Rf1 Bg6 Rf2 Be4 Rb5 Bb7 Re5 Nb2 Re4 Nd3+ Kb5 Ba2+ Nb3+ Kb2 Na5 Bb3 Nc4+ Kc1 Nd2 B7d5 Bb7 Ba2+ Ka6 Rb6+ Ka5 Bab3 Ba6 Rb8+ Nb6 Rc8 Kb5 Ra8 Nc8 Nb2 Kb4 Bc6 Re7 Bb7 Rd7 Nd3+
1r5R/p1r2R1q/P1N1q1R1/r3N3/Q2b1Bp1/Npkq1Rb1/1R3n2/1nK2b1Q b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 h4 Kd7 a4 Ke6 c4 Ke5 f4+ Kd4 c6 e5 f5 g5 a5 b5 f6 g3 f7 e3 c5 b4 c7 e4 h5 b3 c6 g4 d3 e2 Kd2 e1R h6 Nf6 h7 Ba6 c8Q Nd5 c7 Nc3 Na3 Bd6 f8R Nd7 Rg8 Rb8 Rb1 Ne5 Rg6 Rg8 h8R Rg7 R1h3 Qh4 Rg8 Qh7 Qe8 Rd7 c8R Rc7 Rf8 Bb5 Bb2 e3+ Kc1 e2 a6 Rf1 Rf7 e1Q Ba1 Rf5 Rb2 Nb1+ Qc6 Bc4 Rh8 Kc3 Nf3 g1Q d4 g2 d5 Qd4 Qa4 Qd3 Rg3 Qee4 Qh1 g1B Rh3 Bd4 Rg3 Nd7 Ne5 Nf6 Rf3 Qe2 Qb5 Ne4 Qa4 B6c5 d6 Nf2 d7 Bd6 d8N Qe4 Nec6 Ra5 Ne5 Qf5 Ndc6 Qe6 Nd7 Bg3 Nde5 Bb5 R7f6 Bb6 Nec4 Bc5 Rf7 Qde3+ Nd2 Bb6 Ra2+ Kd3 Be5 Bd4 Rb2 Kc3 Bd6 Be2 Bf4 Qd3 Ndc4 Bf1 N4e5
nNNR2K1/1Q1pp3/2R2r2/k5pr/qB1b2Q1/q2N2PN/1n2q2N/2Rr2bb b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 g3 fxe4 Ne2 b5 axb5 h5 Ng1 h4 Bg2 h3 Qe2 hxg2 Qg4 Na6 Qd1 Nb8 Kd2 g5 h4 a5 b4 d3 Ke3 a4 c4 d2 f4 a3 f5 a2 h5 Ra7 c5 Qa5 c6 Kd8 h6 Kc7 f6 Kb6 h7 Ra8 c7 Qa4 f7 Qa5 Qg4 d1R Rh6+ Nf6 Nh3 Qa6 Bd2 Bg7 f8N Rg1 Ne6 Qa4 Nc5 Na6 Nd3 Rf8 h8R Nc5 Kd4 e3 Ke5 e2 Kf5 e1Q Kg6 Ne8 Kh7+ Rf6 Kg8 Bb7 c8N+ Kc7 Rg6 Qe2 b6+ Kc6 Bc3 Kb5 Nd2 Rd1 Nf1 g1B Nh2 Bh1 b7 Nc7 Rc1 a1Q b8N Q1a3 Rgh6 Raa6 Rg6 Na8 Be1 Rf2 Rc6 Bd4 Bd2 Rf6 Bc3 Kc4 b5 Rh6 b6 Kb5 b7 Rh5 Bb4 Rb6 Rc7 Rf6 Rc6 Q4b3+ Kg7 Na4 Rd8 Qbc2 Kg8 Nb2 Na6 Qca4 b8Q+ Bb6 Qb7 Bd4 Bd6 Ka5 Nb8 Bg1 Bc5 Ba7 Bd6 Bad4 Bb4+
qkQ3b1/3Q4/R2rb1r1/bN3r1R/1B1p1pq1/p5B1/Bn1P1Q2/K1nn1B1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Na3 exf4 axb5 Ba6 b6 Bb7 Nb5 Bc8 Nc3 c6 b5 c5 Nd5 Bb7 Nb4 cxb4 Ba3 Ba6 Bc1 Bc8 c4 a5 g4 d5 e4 Kd7 c5 h5 b7 Kc7 e5 f5 c6 f3 e6 b3 e7 d4 e8Q h3 g5 h2 g6 f2+ Ke2 h4 Kd3 b2 Kc2 b1B+ Kb2 h3 g7 a4 Qf3 a3+ Kb3 Ra6 Qee2 Ba2+ Kc2 Ne7 g8B Rh6 Bb2 Qd7 Qb3 Rd6 Qd5 Ng6 Bc3 Ne5 Bb4 Nd3 Rc1 Nb2 Bf7 Bb3+ Kb1 Qe6 Bg8 Nd7 Ka1 Nc5 Rc3 Bd7 b8B+ Kc8 b6 Ncd3 c7 Nc1 Rf3 Qg6 Rc3 Be6 Rc6 Qg4 Qef3 Be7 Ne2 Bd8 Nc3 Kb7 c8B+ Ka8 Bd3 f1R Nb5 Rf2 Bf1 Bc4 Rg1 h1Q Bf7 Qhg2 Rh1 h2 Qe3 Rf3 Qf2 Rf4 Bg6 Bg8 Bf7 Rg6 Qd6 Be6 Qd7 Q2f3 Be5 Bc7 b7+ Kb8 Rb6 Qd5 Rd6 Rf3 Bg3 Ba5 Rg1 h1N Rg2 f4 Rh2 Re3 Rh5 Re5 Rc6 Bf5 Rf6 Rd6 Be6 Qc6 Ba2 Qa6 Re6 Qa8 Rf6 Rdd5 Ra6 Bfe6 Qg7 Reg5 Bd7 Rgf5 Bc6 Rd6 Qd7 Bb3 Qe3 Nf2 Bh1 Nfd1 Qf2 Bge6 Bc5 Bg8 Qf7 Be6 Bb4 Bd7 Nc3 Kc7 Nb5+ Kd8 b8Q+ Bc8 Qbb7 Be6 Qe4 Kc8 Qd7+ Kb8 Qec6 Ncd3 Qc3 Nc1 Qcc8#
kRNR1rNK/2q4p/1b3Bp1/1N2b1Q1/1p2n1n1/1N3Rr1/rqb3Pq/2Q4N b - - 0 1 illegal: No proof kernel
rbqk2Nb/r6p/4NnBQ/4pRKN/3pbQB1/2r1r3/B2P4/B1B2r1n b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Ra3 g5 Rb3 gxh4 axb5 Bg7 b6 Bh6 b5 Bf8 Rb4 cxb4 Ke2 a5 Ke3 d5 Kf4 e6 g4 h3 c4 e3 g5 e2 c5 e1B b7 h2 b6 a4 g6 a3 g7 a2 c6 a1R c7 b3 Nc3 b2 Nh3 b1R Ne4 Rb4 Qh5+ Ke7 Bd3 Rd4 Kg5 Na6 b8B Ra2 f4 Rc4 f5 Bb7 c8B Nb4 Be5 Nf6 g8B Bg7 Ba1 d4 Nf4 Bg3 Qh6 Rc3 Nh5 R2a7 Rf1 h1R Rf2 Bd5 b7 Rf1 b8Q Qd7 Bb1 Nd3 Qf4 Kd8 Bf7 Qc7 Ba2 Re8 Bg6 Bh8 Bd7 Qc8 Rf3 Ng8 f6 Nf2 f7 Nh1 Nef6 Be4 f8N Bh2 Qg4 Be5 Rf5 Bb8 Qf4 Re7 Nd5 Re8 Ne7 Nf6 Ng8 e5 Bb5 Re3 Be2 Re6 Bd1 Rc6 Bg4 Rcc3 Ne6+
B3Qnr1/pr2bpQ1/b1N1q3/4p2b/k2n1B2/q2NR2B/1b2P2b/1KN2BB1 b - - 0 1 legal: proof: b4 c5 a4 g5 f4 h5 d4 cxd4 g4 b5 Ra3 bxa4 Rg3 Nc6 fxg5 Rh6 g6 Nb8 g5 Rh8 Rg4 hxg4 Kd2 d5 h4 Kd7 c4 Kc6 Kc2 a3 g7 e6 g6 g3 h5 a2 b5+ Kb6 c5+ Ka5 b6 a1B b7 g2 h6 Qe8 h7 Nd7 b8N Be7 c6 Nh6 g8Q Ka4 c7 Bb2 g7 Nf8 Nd2 Nf5 Nb3 d3+ Kb1 d2 Nh3 g1B Nf4 d4 Rh3 d3 Re3 Nd4 Nc6 Ba6 c8B Bh2 Qe1 d1B Qc3 d2 Nd3 Rb8 Bb7 Nb5 Ba8 Rb7 Qe5 Nd4 Qb8 Qd7 Qe8 Ng6 Qgf8 Rg8 h8B Bc2+ Ka2 d1Q Bd2 Qd6 Nbc1 Bb3+ Kb1 Qc5 Re5 Bd5 Bf4 Qb3 Re3 Bd8 Qd6 Bh1 Qe5 Qca3 Qg5 Be7 Qg2 Rf8 g8B Qb6 Qg4 Bf3 Bh7 Rg8 Bf6 Nf8 Qg7 Qbb3 Bf5 Bh5 B5h3 e5 Bh4 Qd5 Bf2 Qe6 Bg1
QN1n4/p1N1KN2/2r1N1Br/1b1R3p/1Br1q3/Q7/P2pqnkN/rQ1rb3 b - - 0 1 legal: proof: e4 c5 d4 e5 b4 f5 h4 g5 Nd2 gxh4 Rb1 Be7 Rb3 Bd6 Re3 Bf8 bxc5 exd4 e5 Qc7 Re2 Qd8 Re4 fxe4 Ke2 Kf7 c4 Ke6 g4 b5 f4 d5 g5 Kf5 e6 Kg4 e7 Kg3 e8N h5 c6 e3 Kd3 b4 g6 e2 g7 e1R f5 b3 c7 h3 c5 b2 c6 b1R f6 h2 f7 Re6 Ba3 Rhh6 Nh3 Qh4 Bb4 Qd8 Nf3 Qd6 Nf4 Bd7 c8N Ra1 c7 Qe7 Qb1 Nc6 Ncd6 Nf6 c8Q Nd8 g8N Ne4 Ngf6 Bc6 Qb7 Rc8 Nd7 Bg7 f8Q Bb5+ Nc4 Be5 Qa8 Rec6 Nc7 Kf2 Rg1 h1Q Nfe6 Bg3 Nb8 Bh4 Rg5 Qg2 Kc2 d3+ Kb3 d4 Nce5 d2 Nf7 d1R Nh2 d3 Rd5 d2 Bd3 Qg4 Bc2 Kg2 Ka3 Nf2 Bg6 Qe2 Kb3 Ra6 Kc3 Rc6+ Kd4 Qe8 Qc5 Bg3 Qc3 Qe7 Qe3 Bh4 Ke5 Bg3+ Kf5 Qh4 Qa3 Qhe4+ Kf6 Rc4 Nca6 R8c6 Ke7 Nh3 Rc5 Be1 Rd5 Nf2 Nc7
Nrnb1bKb/8/bB6/QB1pN1R1/1NBB4/3p1pr1/2q1nPrQ/2B2qk1 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a3 h5 Ra2 hxg4 a4 e5 Ra3 e4 Rd3 exd3 axb5 Rh5 Ba3 Rh3 Bc1 Rh8 e4 d2+ Ke2 Ke7 Qe1 Ke6 Kd3 Ke5 Kc4 Kf4 Kd5 a5 h4 Rh5+ e5 f5 c4 g5 e6 g3 c5 g4 e7 g2 e8B g3 b6 a4 c6 a3 b7 a2 c7 a1B b5 Rg5 h5 Nc6 b8B Ba6 c8N+ Qc7 Nf3 g1B h6 g2 b6 Bh2 b7 g1R h7 d6 Ke6 d5 h8Q Nge7 Ba7 Rb8 Nb6 Nc8 Na3 Bg3 Rh7 Bh4 Na8 R5g3 Rg7 Bd8 Rg5 Qh7 Bc4 d3 Bb6 Qc7 Qh2 Bh8 Bd7 Nd4+ Kf7 Qc5 Ne5 Ne2 Bb3 Ke4 Bb5 d1Q Kg8 f4 Qa5 Qf1 Nc2 Qc6 Nd7 Kf3 Nb4 Qc3 B3c4 Qc2 Qh5+ Kg2 Ne5 f3 Qh4 Qe1 Qh2+ Kf1 Bd4 R1g2 Nc7 Ra8 b8B Qed1 Bba7 Rb8 Bab6 Qe1 Qh6 Kg1 Na8 Qf1 Qh2+
1B3nn1/2qr2Qp/K1p2r1n/1pR3B1/1P1RBk2/1Nbq3R/1R2r1Q1/2R3nb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 f5 a4 Na3 e6 Nb5 exf5 c4 d5 cxd5 f4 Nd4 Bg7 Nb3 axb3 Rh2 Bh6 Rh1 Bf8 g4 Kd7 a4 Kd6 e4 Ke5 Ke2 f5 Kd3 b2 Kc4 b1N Kb5 b6 d4+ Kf6 g5+ Kg6 d6 f3 d7 f4 a5 f2 d5 f3 d6 h3 a6 h2 a7 Kh5 g6 Kg4 g7 Nf6 g8Q+ Bg7 e5 Nd2 e6 Kf4 e7 Bb7 e8R Qc8 d8R Nbd7 Qc2 Nf8 Bg2 f1Q+ Re2 f2 d7 Rb8 Bb2 Nf3 a8R Be4 R8a3 Rb7 Rc3 c6+ Ka6 b5 Rc1 Qc7 Rc5 Bd5 Rd2 Qd3 Qc3 f1R Ne2+ Kg4 Rdc2 Ng1 Nd4 Kf4 Nb3 Be4 Qd5 Ng8 Ba1 Re1 Rb2 Re2 Qf6+ Ke3 Qg6 Bc3 Qd4+ Kf4 Qdg7 Bd5 Be4 Nf3 Rhg1 h1N Qg2 Ng3 Rh1 Ng1 Rh3 Nf5 Ra8 Qd2 d8B Qd3 Bh4 Nfh6 Re8 Qe5 Re6 Rd7 Rg6 Qc7 Rd6 Bf7 Rdd5 Bh5 Rd4 Bf3 Q2g6 Bh1 Qg2 Qg3 Rcb1 Qe3 Rc1 Qd3 Qe7 Ng6 Bf2 Qe5 Bh4 Bd2 Rdd5 Nf6 Rbc2 Rf8 Qg7 Nfg8 Bd4 Bc3 Rb2 Qb8 Bdf6 Rff7 Rd4 Nf8 Be7 Qe5 Bd6 Rf6 Bb8 Qc7 Bg5#
bNQ3QQ/1B1R4/5bQ1/KpBr4/N2Q2pn/p6n/q4qPq/kq2rB1n b - - 0 1 illegal: No proof kernel
1Bn5/1pQb1B1Q/n3b1Rp/K3b2N/3Bq1n1/2N3qP/2Nrbp2/1kr2NN1 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 g5 a4 gxf4 Na3 e5 Nb1 e4 Ra3 Qf6 Rc3 Qd8 Rf3 exf3 d4 Kd7 Kd2 Kd6 g4 c5 e4 f5 a5 b3 Kc3 c4 Kb4 f2 a6 h6 e5+ Kd7+ d6 Ke6 g5 Kd5 g6 Ke4 a7 c3 d5 c2 g7 b2 e6 f3 e7 f4 e8N Bd7 h3 Qe7 Ka5 Rh7 Bc4 f1N Be3 c1Q Bd4 Qe3 Qc1 f2 Nc7 f3 Nb5 Be6 d7 Na6 d8N Rc8 a8Q Nh2 d6 f1B d7 f2 Nc6 Qg3 d8B Be2 Bc7 Ng4 Bb8 Bd7 Bb3 Kd3 N5c3 Qe4 Bf7 Bd6 Nd2 b1B Nf1 Ne7 g8N Ba2 Nf6 Bae6 Nh5 Be5 Qf4 Kc2 Nb4+ Kb2 Nc2 Rc7 Rh2 Nc8 Rg2 Rh8 Qf5 Rd8 Qh7 Rc6 Qa7 Rc4 Qc5 Kc1 Na2+ Kb1 Qc7 Bb5 Ba1 Rd2 Bd4 Bbd7 Nce3 Rc1 Nc2 Qh2 Rg3 Ne3 Rg7 Qg3 Rg6 Ng4 Nc3+
q2bB1rk/4Nb2/2b3p1/1Q2q2b/1K1p1Q1N/1R2pqP1/Rr1N4/1nN1Q1nN b - - 0 1 illegal: No extended proof kernel
1k1n1R1R/n4p2/1q1b3p/1NQb1rN1/5P2/QrnR2Bp/4rRr1/KRqQ4 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 axb5 e5 h5 e4 h6 gxh6 e3 h5 Bc4 h4 Bd3 exd3 Kd2 a5 b4 d5 g4 Kd7 c4 Kc7 g5 h3 g6 h6 g7 a4 e4 a3 e5 a2 b6+ Kb7 e6 Bc5 b5 Qf8 e7 Nc6 e8R Rb8 Nf3 Na7 Nc3 Qd6 Rf1 Be6 Rf8 Ne7 g8R Nec6 Rb1 a1R Rg3 Rg8 Ng5 Ra5 f4 Ka8 Rf2 Nd8 Ba3 Bb4 Kc1 d2+ Kb2 d3 c5 d4 c6 Bd5 c7 Qc6 c8Q Bd6 Bb4 Rg6 Qb3 d1Q Qa3 d2 Rd3 Qc1+ Ka1 d1R Qg4 Rd2 Qd1 Kb7 Rh8 Kc8 b7+ Kc7 Bc5 Qb6 Bb4 Re2 Bc5 Rc8 b8R Rg8 Ra8 Kb7 Bb4 Rc4 Bc5 Rb4 Rc8 Rb3 Bb4 Ndc6 Rf8 Nd8 Bc5 Kb8 Bb4 Qc5 b6 Rb5 b7 Qb6 Ba5 Rc5 Nb5 Rg6 Rg3 d3 Be1 d2 Rd3 Rg7 Rh2 Rg8 Bg3 Rg6 Rf2 Rg7 Qe1 d1N Qh1 Nc3 Qd1 Rg6 Bh4 Qa6 Nh7 Bc4 Nc7 Rg2 Bg3 Rf5 Ng5 Be6 Nb5 Bd5 Nd4 Kc7 b8Q+ Kd7 Qb6 Kc8 Qb4 Qb6 Nb5 Kb8 Qc5
NRbQN2r/k2p2bN/2pb1N2/2b3nR/1q6/2PRp3/2q1Q1r1/n1B1r1NK b - - 0 1 legal: proof: e4 b5 d4 h5 g4 hxg4 a4 e5 axb5 exd4 e5 f6 Bg2 f5 Be4 fxe4 Kf1 a5 Kg2 g5 b4 c6 h4 g3 f4 a4 e6 a3 f5 a2 b6 d3 f6 d2 b7 g4 b5 Qb6 f7+ Kd8 h5 Kc7 e7 Nh6 Qe2 d1Q Qe1 Na6 b8N Kb7 e8N Bd6 f8N Nb4 Nc3 Ka7 Na6 Nf7 h6 Ng5 h7 Rb8 Rb1 a1B Nd5 Bg7 c3 Nc2 Qe2 Na1 Rh5 Qc2 Kh1 Qc5 Nac7 Qb4 Ndf6 Rg8 h8Q Ra8 Bf4 g2+ Kh2 Rb8 Rd1 Ra8 N8h7 Rb8 Nf3 g1R Na8 Re1 Ng1 g3+ Kh1 g2+ Kh2 Bdf8 Bc1 e3 Rd3 Bc5 Nh3 g1B+ Kh1 Bh2+ Ng1 Bhd6 b6+ Ka6 b7 Ka7 Nac7 Ra8 b8R Rf8 Ne4 Rf2 N4f6 Rg2 Rb5 Rb8 Na8 Ba6 Qf8 Rd8 Rb8 Bc8 Nec7 Re8 Qe7 Rg8 Nce8 Rh8 Qd8
1RK1bq1n/1R4B1/1pB1n2Q/2pQ1RR1/3Nr1qq/pP4Rr/6Bk/b4b1q b - - 0 1 illegal: No proof kernel
qN2RRbb/kb2K1pp/1NN3Qr/1Qp2b1q/n4B2/q1n3Q1/4N2P/r6N b - - 0 1 illegal: Other
bn1B1QQR/Q2k1rp1/1p1r1Q2/n1nn1n2/1N6/1NQ2n2/qbK2pP1/3BB3 b - - 0 1 illegal: No proof kernel
1Q4R1/1B2r1Qr/2Q1b3/nrn1n1Kn/3Bp3/B3PrBp/k3q1pb/1N2BR2 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 c5 a4 cxd4 axb5 f6 Nd2 gxh4 Ndf3 f5 g5 Nh6 Ne5 Ng8 Ng4 fxg4 Kd2 Kf7 b4 Ke6 f4 Kd5 c3 Kc4 g6 d5 b6 h5 b7 e5 e3+ d3 g7 a5 b5 d4 b6 g3 f5 a4 f6 h3 f7 a3 Rh2 g2 Bb2 a2 Rb1 a1N Qf3 Kb3 c4 e4 c5 h4 c6 Ra5 c7 Rb5 Rc1 Rh7 Qf4 Ka2 Ne2 Na6 b8B Bd6 f8B Nb3+ Ke1 d2+ Kf2 d1R b7 d3 Bd4 Nf6 g8Q d2 Qg7 Be6 c8Q Nd7 Qc6 Nac5 Bc7 Qe8 b8B Qh5 Ba5 Ne5 Bb4 Na5 Nc3+ Kb2 Nb1+ Ka2 Rh1 h2 Rg1 h3 Kg3 Bc7 Bd3 Qe2 Rf1 Re1 Ba3 d1R Bc4+ Rb3 Ba6 Rb5 Bb7 Rd3 Be7 Rc3 Qff8 h1N+ Kf4 Ng3 Bh4 Nh5+ Kg5 Rd3 Qfh8 Rd2 Rf8 Rf1 Rg8 Rf3 Rf1 Rd3 Be1 Rd2 Bc3 Rd7 Bd4 Bd6 Bc7 Re7 Bb8 Ng6 Bc7 Bh2 Bcg3 Ne5 Qf8 Qc2 Qhg7 Qe2 Qb8
QQb3bn/K2RB2p/4p2q/1Bpnr1Q1/2P5/3nb1BQ/N2k4/b1Q1nr1R b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 e5 d4 Nc3 f6 Nd5 fxe5 Ne3 dxe3 Qe2 e4 Qh5+ Kd7 Qd1 Ke8 Ke2 Kd7 b4 Ke6 f4 Kd5 g4 Kd4 g5 a5 f5 c5 b6 a4 f6 e6 g6 h3 b7 a3 f7 h2 g7 a2 b5 Nc6 b8Q Qa5 b6 Ra6 b7 Nb4 Qa8 Rd6 b8Q Nh6 g8Q Rd5 Qg4 Re5 Qh3 Nd5 d3 Kc3 d4 Bg7 f8B Nf7 Be7 Rf8 Rb1 a1B Rb7 Nh8 Rd7 Bh6 Bb2+ Kc4 Qc1 Rf6 Bc3 Qd8 Be1 Qf8 Bg3 Kc3 Nf3 Bg5 Ne1 Qh6 Nd3 Rf7 Nb4 Rff5 Kd1 e2+ Ke1 Bf4 Kf2 e1N Bb5 e3+ Ke2 Nf6 d5 Nd3 d6 Nd5 Rb7 Bg5 d7 Rf1 d8Q Bf4 Rd7 Bg5 Rg1 h1B Qg8 Bf4 Qg5 Be4 Rh1 Bg6 Na2+ Kd4 Bf6 Bf7 Be7 Bg8 c4 Rf3 Kd1 e2+ Kc2 e1N+ Kb3 Be3 Ka4 Rf1 Ka5 Ke4 Qbb7 Kf3 Ka6 Ke2 Qb8 Nc7+ Ka7 Nd5 Qc3 Kd1 Q7a8 Ke2 Qa3 Kd2 Qc1+
N2N3n/bp2n2n/1NRpp3/kr4p1/NPb1r2R/1qB3QK/b2N4/r1QQ4 b - - 0 1 illegal: No possible last move, all moves rejected
Nb3q1B/n1qk1Q2/3np1b1/2Qp1R1N/3n1p2/Nr1P2pr/RQ5Q/KQ4r1 b - - 0 1 illegal: No proof kernel
1nr1n3/2p2B2/pQ1qk3/R3bn1b/Bq4r1/2pRB3/PpN2KRR/R1rQ4 b - - 0 1 illegal: No proof kernel
4r3/Rb1qk2N/3b1Bp1/5r1r/pRp1pR1n/4Q1n1/R1B1PrrB/2KQ2R1 b - - 0 1 legal: proof: c4 b5 g4 d5 a4 dxc4 axb5 h5 g5 h4 Nc3 f6 Ne4 fxg5 Ng3 hxg3 Qc2 g4 Qb3 Ba6 Qd1 Bc8 f4 a5 d4 e5 Kd2 c5 h4 g2 b4 g3 d5 a4 b6 g6 d6 Qc7 f5 Nf6 h5 Kd8 h6 Nd5 b5 Ne3 f6 Be7 b7 Qc6 d7 Ra6 b6 Nf5 h7 Nh4 f7 Ra5 Ra2 Na6 b8B Bb7 Nf3 g1R Bg2 Rf1 Rg1 Rf2 Ng5 Bd6 f8R+ Ke7 d8R Qd7 Rf4 Re8 Be4 g2 Bb2 c3+ Kc1 c4 h8Q c2 Qh6 Nc5 Nh7 Rb5 Bd3 Ne4 Rc8 Ng3 Rc7 e4 Bf6+ Kf7 Qg5 Rf5 Qh6 Ba8 Ra7 Bb7 Qh5 Ke6 Qf3 Rh5 Qe3 Kf7 Kd2 c1R Bc2 Rb1 Bc7 Rbb5 Kc1 Rbf5 Bb8 Bd5 b7 Ke6 Re1 g1R Rf1 Rgg2 Rg1 Bf8 Bbe5 Bd6 b8R Bc6 Rb4 Bb7 Rf3 Nh1 Bh2 Ng3 Rf4 Kf7 Bd4 Ke7 Bf6+
1B5b/6RB/1k1pb2n/1p3r1n/3KbBB1/1rr4p/rP2NNpB/3Q1qNQ b - - 0 1 illegal: No proof kernel
1KN1N1N1/6Rp/2pNbq1r/Q3R1p1/1nQrp2p/4P2k/1n5N/3rbRbB b - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 axb5 g5 h4 f6 b3 Bf5 Bb2 Bc8 Be5 Qd7 Bf4 gxh4 g5 Qd3 g6 Qd8 Bg5 fxg5 d4 Kd7 Kd2 Ke6 Ke3 Kf5 f4 Kg4 Ke4 e5 b6 a5 f5 c6 e3+ Kg3 b4 a4 b7 c3 b5 a3 b6 a2 f6 c2 d5 c1B d6 Bb2 d7 Bba3 f7 Ra7 g7 Na6 b8R Rc7 b7 Bfc5 f8N Be7 Nd2 Bec5 Qg4+ Kf2 Nc4 Ba7 Nf3 Bc1 Bg2 Bd2 Nd6 Nb4 Ne6 Nd3 Nh2 Qf6 d8Q Rf7 Nc7 Nb2 Nce8 Ne7 g8N Be6 Qa5 Nd5 Rc8 Bc3 b8N Nb4 Nd7 Bb8 Nb6 Be1 Rc7 Rf8 Rd1 a1R Rd5 Rd1 Rg7 Bc7 Qe2+ Kg3 Nbc8 Bb8 Bf3 Kh3 Rf1 Rf7 Qc4 Rd7 Nh6 Rf8 Ng8 Bc7 Bh1 Rd8 Rd7 Rf7 Rb5 Rg7 Rc5 Rg6 Rg7 Rh6 Nb5 Bc3 Nf3 Be1 Rd5 Bf2 Rc5 Qf8 Nh2 Bg1 Rd5 Bf7 Kf5 e4 Rc5 Bf4 Re5 R8d4 Nbd6 Bg3 Rf2 Rh5 Rf1 Be1 Kf6 Rh6+ Kf5 Bg6+ Ke6 Bf7+ Kd7 Be6+ Kc7 Qf6 Kb8
br5k/1pQNK3/p2N2BR/1pR1prN1/nPQn1b2/4N2p/3r3n/R3qN2 b - - 0 1 illegal: Other
2q3N1/rQ1p2p1/3Q1prn/1B1R2P1/b5pB/Q1BBb2r/p1R1n1K1/1k1b3B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 d4 cxd4 Nc3 e5 Nd5 Qg5 axb5 exf4 Ne3 Qe7 g5 Qd8 Ng4 hxg4 Kf2 Ke7 c4 Kd6 b4 Ke5 h4 Ke4 h5 a5 h6 f6 b6 d3 c5 f3 c6 a4 b5 d2 b7 a3 h7 a2 b6 Ra5 c7 Nh6 Bb2 Ra8 Rh2 Ra4 Nh3 Ng8 Bc3 Bd6 Nf4 Ra6 Ng6 Ra8 Ne7 Nc6 b8Q Na5 b7 Nh6 Ng8 Kf5 e4+ Kf4 e5 Ke4 e6 Nc6 e7 Ra7 e8B Nd4 Bb5 Ne2 Rc1 Bb4 Rc2 Bc5+ Kf1 f2 Kg2 f1R Bg6+ Ke3 Bgd3 Rh1 Qa8 Qe8 b8B Ba6 Qb7 Qc8 Qc1 Bb6 Qa3 d1B Rd2 Rf1 Rc2 Rf3 Rh1 Bc5 Rf1 Rh3 Rf5 Bb6 Rd5 Bd4 Ba4 Bc4 Bb5 Bb3 Qd6 Ba4 Qa3 Qe8 c8B Qf8 Bg3 Qd8 Qc6 Bc5 Bb7 Qc8 Bdc4 Ke4 Qd6 Be3 Bge1 Nf5 Ba8 Rh6 Bac6 Rg6 Bh4 Nh6 Ne7 Re8 Ng8 Re5 h8Q Rf5 Qb8 Rf3 Qb7 Rh3 Bd3+ Kf4 Rd2 Bf2 Rc5 Ke3 Rc2 Rh2+ Kf1 Nf5 Bh1 Bg1 Qh5 Nh6 Bg3 Rh4 Rd5 Rh2 Bf3 Rh1 Qh2 Bf2+ Qg1 Rh3 Qh2 Bg1 Bh4 Bf2 Qhd6 Bg1 Rc1 Bf2 Be5 Kd2 Bh1 Be3 Kg2 Qa8 Rb1 Qc8 Rb2+ Kc1 Rc2+ Kb1 Bc3
2BQ1Q2/1p2pqQ1/Rp1n4/nQkN4/3brp2/NR1r1QRr/p3P3/2K1n2b b - - 0 1 illegal: No proof kernel
1nBR2Q1/pqp5/Qb3K1p/1b2Q1NR/5p2/rnR1Q1Qn/Pk4p1/1r4Bb b - - 0 1 illegal: No proof kernel
1q1NB3/3N4/1B2Nr2/ppb1pknK/P1NB3n/r1pN3b/p1Rq2qQ/5Q2 b - - 0 1 illegal: No proof kernel
3R2r1/nR1p1bNK/2b3p1/1n2p1PB/1b1pN1pN/qQ1rQ2b/2R2N2/k1N5 b - - 0 1 illegal: No extended proof kernel
n2N2NQ/3qrp2/2pr1N1N/2B1bpR1/K5p1/4Bbb1/1pn3PQ/k1bB1N2 b - - 0 1 illegal: No proof kernel
b1B1Bq1k/1p1R1n1Q/1p1p4/nr4Q1/2BBp1QK/2pPR1n1/5r2/1BN1b2n b - - 0 1 illegal: Other
2b2bQ1/pR1RRp1N/1R3r1p/P1qp4/BnN1p1p1/Q7/1rp1KnkR/N7 b - - 0 1 illegal: No proof kernel
R1bB1N2/1R5B/4nPbB/3q1q2/KBb2q1r/1pBQ1B2/1kB5/1bbr4 b - - 0 1 legal: proof: e4 d5 h4 a5 c4 g5 cxd5 gxh4 b4 axb4 Bb2 f5 exf5 c5 Be5 Nd7 Na3 Nb6 Nc2 b3 Nb4 Nd7 Bd6 Nb8 Bxb8 cxb4 g4 Kd7 a4 e5 d4 b5 Kd2 h5 f4 e4 a5 b2 Kc2 b1B+ Kb3 e3 f6 e2 f5 e1Q d6 Kc6 d7 Kd5 f7 h3 g5 h4 a6 h2 g6 h3 g7 Qe4 f6 Nh6 g8B Qa5 d8B Qf4 a7 Nf5 Be7 Bh6 Ne2 Ng7 f8B+ Ne6 Be5 Bg6 Qd3 Rb8 Rg1 h1B Bh7 h2 a8B+ Rb7 Ra3 Bg2 Ra2 h1Q B7d6 Bg5 Bh6 Qh3 Rb2 Qhf5 Rb1 Be4 Bg2 Qd8 Bf3 Qd7 Rg3 Qc6 Ra1 Rd7 Ra7 Rdd8 Rb7 Rd7 Rg1 Bf7 Ra1 Bg6 Kb2 b3 Ka3 b2 Bb4 b1B Kb3 Qd6 Raa7 Rc7 Ra4 Rc1 Ra5 Rd1 Ka3 Qh2 Kb3 Bc1 Nf4+ Kc6 Ra2 Bf7 Ng6 Kd5 Nf8 Qhf4 Bc5 b4 Ka4 b3 Bb4 Re1 Bd1 Bg6 Bc2 Rd1 Qd2 Kc4 d5 Qc5 d6 Bd3 d7 Qd5 d8B Be2 Bec3 Bf1 Bba5 Bd3 Bcb4 Kd4 Qe2 Bc4 Qd3+ Ke5 Rd7 Rg8 Rd6 Qdd4 Rb6 Bf7 Bf3 Rg4 Bbe7 Rh4 Rb7 Qd5 Be1 Bg6 Kb4 Qe3 Ra8 Qef4 Qf1 Kd4 Ka4 Qd2 Ba3 Kc3 Bb4+ Kb2 Qd3 Qdf4 Bec3+
1bN1K2b/2q4r/nbBr1N2/2Bn3B/1bqR3B/QB1P3b/B4b2/2b1kB2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 a4 f5 c4 d5 f4 dxc4 Ra2 e5 fxe5 f4 Ra3 Bb4 Rb3 Bf8 Rg3 fxg3 h4 Kf7 e4 Ke6 Ke2 b5 Ke3 c5 Kf4 c3 a6 g2 a5 c4 d3 c2 a7 b4 a6 c3 h5 b3 h6 g6 h7 b2 Rh4 g3 Nf3 g1B Na3 b1Q Be3 c1B Nh2 c2 Ng4 g2 Nf6 Qb3 Kg5 Qd6 Nc4 Ne7 Nb6 Bb2 Qc1 Qc7 Bc5 Bf2 Rf4 Ba1 Qa3 g1B Rh4 Bd7 Nc8 Bh2 Rg4 c1B+ Rf4 Rg8 h8B Nd5 Bg7 Be7 Bf8 Bd6 Be7 Rd8 Kh6 g5 Kg6 g4 Kg7 Be8 Kf8 g3 Rh4 g2 Rg4 Nc6 Rf4 Rb8 a8B g1B a7 Ncb4 Bc6 Rb7 a8B Na6 Ba4 Qc2 Bb3 Qc4 Rh4 Ra7 Bc6 Rd7 Ba2 Bg6 Rf4 Bf5 Ke8 Bh3 Ba4 Rb7 B4b3 Rb6 Bd8 Rh7 Ng4 Qd4 Bh4 Bfe3 Bb4 Qf7+ Kd8 Qc4 Rf5 Bgf2 Rf4 Bf8 Bbe7 Ndb4 Bd6 Bc3 Bde7 Bg7 Nf6 Bh8 Bd6 Rc6 Rg4 Ba7 Bc5 Qg7 Bg2 Nd5 Bf1 Ndc7 Rf4 Bb4 Rg4 Bb6 Rf4 Kf7 e6+ Kg6 e7 Bhg3 e5 Nd5+ Ke8 Kh6 Nd7 Kh5 Re4 Bgf4 Rd4 Kg4 Nf6+ Kf3 e6 Qg5 Kf8 Bb8 e8B Qf4 e7 Qc7 Bh5+ Ke3 e8B Kd2 Bd7 Rd6 Bc6 Ke1 Ke8
NNnN4/4rN2/1RRp1N1K/3k2p1/n3NQ2/1N2PqB1/5bb1/bbr1b1q1 b - - 0 1 legal: proof: g4 f5 a4 c5 f4 b5 axb5 h5 d4 cxd4 Bh3 e5 gxf5 exf4 Bg4 hxg4 Kf2 Kf7 h4 g5 b4 a5 c4 f3 Kg3 d6 b6 d3 c5 d2 f6 Ke6 b7 f2 c6 f1Q c7 a4 b5 a3 f7 a2 b6 Ra7 h5 Qe8 h6 Be7 f8N+ Kd5 h7 Qa4 Nh3 Qa6 Nf2 Nf6 Ne6 Nbd7 b8N Qb5 b7 Qb6 Ne4 Bd8 Qa4 d1B Nbd2 Nc5 Nb3 Bc2 Bf4 Nfd7 Rb1 a1B e3 Qc6 Be5 Nb6 Nd7 Rg8 b8N Bb7 h8N Nc8 Rc1 Bb1 Nf7 Rg7 Qb4 Na4 Bf4 Bdf6 Ned8 Bfc3 Rh2 Ra5 Rb2 Rc5 Rcc2 Ncb6 c8N Be1+ Kh2 Qf3 Bg3 Qb5 Rc1 Qbf1 Rc3 Rc7 Rc6 Ba8 Qc3 Bb7 Qf6 Ba8 Qf4 Bb7 Na7 Nc8 Nb5 Ba8 Rb6 Rc1 Rc2 Qd1 Rcc6 Qff3 Bh4 g3+ Kh3 g2+ Bg3 g1B Rc7 Bgf2 Rcc6 Rc5 Nc7+ Kc4 Ndf6 Bb7 Nh6 Re7 Na8 Qc1 Nh5 Kd5 Nhf7 Qg2+ Kg4 Qf3+ Kf5 Qcd1 Kg6 Rc1 Rc3 Ba6 Kh6 Bf1 Rcc6 Bg2 Nbd2 Qde2 Nb3 Qf1 Nec5 Qh1 Ne4 Qg1 Nhf6+
q2rNK2/3kp3/2N1rn2/n2N1N1N/Q2qbqP1/q2pp3/2R1BBNN/6n1 b - - 0 1 legal: proof: e4 c5 a4 g5 b4 f5 g4 Bg7 f4 Be5 Ra3 Bd6 Re3 Bc7 d4 b5 axb5 cxd4 Rf3 fxe4 f5 Bg3+ hxg3 Kf7 Rf2 Ke8 Rf4 gxf4 Kf2 h5 c4 d5 b6 a5 b7 a4 c5 f3 g5 a3 f6 d3 Ke3 d2 Kd4 h4 Ke5 f2 g4 h3 b5 h2 g6 d4 c6 d3 b6 a2 c7 a1Q+ Nc3 Qa5+ Nd5 Qa7 g7 Be6 c8N Qa2 f7+ Kd7 f8N+ Ke8 Ng6 Nh6 g8N Ra3 Nf3 Nf5 Nh6 Kd7 Be2 f1Q Nd6 Ng3 Ne8 Nh5 Ngh4 Ra6 Ng2 Nf6 Nf5 Qa3 Bb2 Bf7 Bd4 Bg6 Bf2 e3 Rg1 h1N Nh2 Ng3 Rh1 Qc8 Qa4+ Qc6 Rg1 d1Q Rh1 Qdc1 Rg1 Qc4 Rh1 Qb1 Rc1 Qba1+ Rc3 Qf1 Rc2 Qcc5 Kf4 Rg8 Kg5 Qd4 Kh6 Rf8 Kg7 Rh8 Ned6 Rd8 Ne8 Bh7 Kf8 Bg6 Bg1 Qff4 Bf2 Bh7 Qb4 Qc8 Qa4+ Nc6 b8N+ Ke6 b7 Na5 Nc6 Kd7 Nd6 Be4 Nf5 Qa8 b8N+ Kc8 Bf3 Ne2 Nd7 Ng1 Be2 Rb6 Nc5 Ra6 Ne6 Kd7 Neg7 Rb6 Nh5 Ra6 Na7+ Rc6 Qc4 Rd6 Nc6 Re6 Qa4
2Bn1rQ1/3r1R2/2B4N/K1b1pnbk/3BB3/2B1B3/bBnpPqnN/4bq2 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 d4 cxd4 g4 h6 f4 gxf4 g5 h5 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Kd2 d5 c4 f5 h4 Kf7 c5 Kg6 c6 a5 c7 e5 b6 d3 Kc3 g3 b5 d2 b7 g2 b6 a4 Nf3 g1B Nd4 a3 Qb3 a2 Bg2 a1B+ Bb2 Nc6 b8B f3 b7 f4 Ba7 f2 b8B f1N Be4+ Kh5 g6 f3 g7 f2 Nf5 Nge7 g8B Rh7 Be3 Be6 c8B Qb6 Ba7 Nd8 Nh6 Nf5 Qa2 d1Q Nd2 Bc5 Nf3 Rd7 Nh2 Qe1+ Bd2 N1e3 Bh7 f1N Bg2 Ng7 Bhe4 Nc2 Qc4 Bge3 Qa2 Ng3 Rf1 Bg5 Rf7 Qf1 Qb3 N7f5 Qc4 Bb4+ Kb3 d4 Ka4 d3 Bdc3 d2 Bc6 Qc5 Bge4 Qcf2 Qb3 Bbe7 Ka5 Nfe3 Qc4 Rb8 Bad4 Bc5 Qb3 Ng2 Qd5 Bf6 Qb3 Nf5 Qc4 Kg6 h5+ Kg5 Qb3 Kh4 Qa2 Bg5 Qb1 Qd1 Bc1 Bge7 B8b7 Qg3 Bb4 Nf4 Bf2 Bad4 Bb2 Ba2 B4c3 Nde6 Bg1 Rh8 Bc8 Nd8 Bf2 Qh1 Qg1 Rf8 Qg2 Be3 Bg1 Qf3 Qg8 Ng2 Bf2+ Qg3 Bg1 Bf4 Bgd4 Qe3 N6g4 Qeg1 h6 Kh5 h7 Bh4 h8B Be1 Bg7 Qf2 Bh6 Qhg1 Bg5 Qgf1 Nh6 Be3 Bh4 Bf4 Bg3 Bg5 Bf4 Bf6 Bfe3 Bh4 Qg7 Bg5 Qg8
R5rb/RN1Q1n1r/2b2k2/N1R1n2N/r1Qqq3/q2Q1PbN/8/B5bK b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 a4 exf5 a3 b6 a2 Ba6 Bxa6 b5 Bc8 b7 Nc6 b8Q Nxb8 Kf1 Kf7 d4 e5 g4 h5 Kg2 c5 d6 c4 f3 e4 f6 e3 g5 e2 g6+ Ke6 f7 e1B d5+ Kf6 d7 c3 b6 c2 d6 Ra4 b7 Nh6 g7 Bg3 g8Q Nc6 b8R Bb7 Ra8 Ne5 Qd3 Bc6 Bb2 c1Q Na3 Qf4 Rh3 Qe4 Nc4 Rh7 Rc1 a1B Na5 Bg7 f8Q+ Nf7 Qe8 Bh8 Rc5 Qe7 Rh2 h3+ Kh1 h4 d8N Qd4 Rd2 h2 Ne6 Qa7 d7 Qe4 Kg2 h1R d8N Qe7 Ng7 h3+ Kf1 h2 Kg2 Qd6 Nh3 Qdd4 Qd7 Rb1 Bc3 Rb8 Kh1 Bb2 Rg2 Bc1 Ba1 Be3 Rb2 Bg1 Rb7 Rc8 Rba7 Rb8 Ndb7 Rf8 Kg2 h1Q+ Kf1 Rb8 Qgc8 Qh2 Qcc7 Qhb2 Nh5+ Kg6 Qcc8 Qa3 Qcc7 Rg8 Kg2 Rc4 Kh1 Ra4 Qd5 Kf5 Q5c4 Kg6 Qe7 Kf5 Qd7+ Kg6 Ng7 Kf6 Nh5+
1Q1rBQ1Q/1kN1q2n/N2nP1p1/3N3R/1r2r3/bbK2Rn1/4R3/1Q2rr2 b - - 0 1 legal: proof: f4 e5 g4 a5 c4 d5 cxd5 h6 b4 axb4 Bb2 f5 gxf5 exf4 Bf6 Nd7 Be7 Nb8 Bg5 hxg5 e4 Kd7 d4 c5 Kd2 Kc7 h4 b5 a4 b3 a5 c4 d6+ Kb7 d5 g4 d7 b4 d6 f3 e5 b2 h5 g6 f6 g3 h6 g2 f7 f2 h7 b3 Kc3 Ne7 Ne2 g1N Ra3 Nf5 Nf4 Qe7 d8R Be6 d7 Nd6 Nd2 b1Q Rh5 b2 Re8 Rg8 d8Q Nd7 h8Q Nf6 Nd5 Nh7 Ne4 Ra6 Bd3 f1R Bc2 Rb6 Ba4 Rb4 a6+ Ka7 Nc5 Ne2+ Kd2 Ng3 Rf3 Re1 Kc3 Re4 Nc7 Kb6 a7 Bd5 N5a6 Kb7 Qc2 Be6 Kd2 c3+ Kd3 Bh6 f8N Bb3 Nfe6 Bc1 Nd5 Rf8 Qa5 Rg8 Nec7 Rf8 Qc5 Rg8 Ra8 Rd8 e6 Qa2 Re3 b1R Re2 Ba3 Be8 Re1 Qb1 c2 Kc3 Rf1 Qf2 Re1 Qff8 c1R+ Qc2 Ra1 Qb1 Qb2+ Kd3 Rf1 Rc8 Ba4 Na8 Rb6 Qa2 Rae1 Rc3 Rb3 N8c7 Kc8 Qb1 Rb6 Rc1 Qb4 Rc6 Bb3 Rc3 Rb8 Kd2 Qb7 Kd3 Qa8 Kd2 Rbb4 Rf3 Qb8 Kc3 Kb7 axb8Q+
5kN1/P2n3b/1nn3Bq/2r2b1p/B1N4K/rRq2r1Q/N1pQ1Q1B/3Q4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 Bd7 Ne2 Be6 Ng1 Bc8 a4 gxh4 Ba3 c5 Bc1 Bg7 Ra3 bxa3 d3 c4 d4 Be5 Qb3 Bd6 Qd1 Bc5 dxc5 Qb6 Qg4 Qd6 Qd1 Qd8 f4 b5 Kf2 e5 g4 h5 d6 h3 Kg3 e4 d7+ Kf7 f6 e3 g5 c3 g6+ Kf8 g7+ Kf7 f5 b4 c6 e2 a5 e1N a6 c2 c7 a2 a7 a1R Kh4 b3 Bf4 b2 Nf3 h2 Bd3 Ne7 g8N Qf8 d8Q Nd5 Nfd2 Nc6 Nc3 b1Q Na2 Qbb4 Nc4 Qh6 Bd6 Be6 c8B Qc3 Bd7 Rc8 Rf1 h1B Bh2 Nb6 Rf3 Rc7 Be8+ Kf8 f7 Bg2 Be4 Bc8 Q8d2 Nd3 Rh3 Nde5 Rd3 Nb4 Ba4 Rc5 Rf3 Nbc6 Rh3 Qa5 Rb3 Qc3 Bd3 Ned7 Be4 Kg7 Bd3 Be4 f8Q+ Kh7 Qd8 Kg7 f6+ Kf7 Qc7 Kf8 f7 Bf5 Qg3 Bh7 Nb4 Ra3 Na2 Qcg7 Qh3 Qc3 Ne7 Rg8 Bf5 Rg3 Ng8 Rf3 Bd3 Nf6 Bg6 Bf5 Ne7 Kg7 Ng8 Nfd7 f8Q+ Kh8 Qe8 Kg7 Qee2 Kf8 Qf2
QN2Nb1Q/b2N3q/N7/B4BK1/1nRq1p2/b2nP2p/2n5/bkB3Qn b - - 0 1 legal: proof: d4 a5 c4 b5 b4 axb4 e4 d5 Kd2 dxc4 d5 e5 Ke2 Ra3 Ke1 Rd3 d6 Rd5 exd5 e4 Kd2 e3+ Kc2 e2 Kd2 Bh3 Ke1 Bg4 Kd2 Bc8 g4 h5 a4 g6 g5 Rh6 h3 Bg4 hxg4 Rh8 Ra3 Rh7 Rf3 Rh6 Rf5 gxf5 Kc2 Re6 Kd2 Re3 fxe3 f4 d7+ Ke7 g6 Kf6 a5 Ke5 g5 Ke4 g7 e1B+ Ke2 f5 d6 c5 a6 b3 g6 h4 a7 c3 a8Q+ Nc6 Bd2 b4 Na3 b2 Qb7 b1N Nb5 b3 Na3 c2 Nh3 c1B Bb4 b2 Qa8 c4 Nb5 c3 Rg1 c2 Ba3 Bc3 Nc7 Nf6 g8N Nd5 g7 Ne5 Rg4 Nd3 Ng1 h3 Na6 Bd4 Nf3 Ba7 Ne5 Qb6 d8Q Qd4 Nc6 N5b4 d7 Bd2 Qdc8 c1B d8B Bc3 Ba5 Nc5 Rg5 f3+ Kf2 Ncd3+ Kg3 f4+ Kg4 f2 Ncb8+ Nd5 Be2 f1N Kh4 Ng3 Bg4 Nh1 Qg1 B1d2 Rg6 Bc1 Rc6 N5b4 Qd8 Ne5 Kh5 Kd3 Rc4 Kc2 Nf6 Ned3 g8N Nd2 Kg6 b1Q Kh5 Nb3 Ne8 Na1 Bf5 Bb2 Qg7 Kc1 Kg5 Qc2 Ngf6 Kb1 Qg8 Bc1 Nfd7 B3b2 Rc8 Qc7 Qf6 Nac2 Qfh8 Ba1 Bb2 Qb7 Rc4 Qc7 Nb6 Qh7 N6d7 Bd2 Bc1 Bdc3 Qgd5 Bcb2 Qg2 Ba3 Qg1
1bnK3k/3p2Qb/1R1p1p2/Q5RB/rB1Pq3/1N4B1/r1BqQ3/3q1R1n b - - 0 1 legal: proof: g4 b5 e4 e5 b4 a5 bxa5 h5 gxh5 b4 Qe2 Be7 Qa6 Bf8 Qd6 cxd6 Na3 Rh6 Nc4 Rh8 Ne3 b3 f4 exf4 axb3 fxe3 b4 Bb7 b5 Bc8 Ke2 g5 Kd3 g4 Kc4 g3 d4 e2 h4 e1Q a6 g2 a7 Na6 e5 Nb8 e6 Rh7 h6 Qe4 h5 Qe3 e7 Qa3 b6 Qg3 Kb5 Qg4 c4 Bg7 c5 Qf3 b7 Qc3 c6 Bf8 c7 Qa3 Kb6 Qh3 Nf3 g1Q Bd3 Bg7 Ba3 Qe6 Bc2 Nf6 Bb4 Qd1 Ra5 Qe4 Nd2 Nc6 b8R Ba6 Nb3 Ng4 Rf1 Bd3 Rg5 Nf2 Rb7 Rh8 h7 Bf6 h6 Nh1 Rb8 Rg8 h8B Rg6 h7 Rh6 Rb7 Rh2 Rb8 Rg2 Kb7 Re2 c8B Qa5 Bg7 Qa2 Kc7 Rd2 Rb6 Rf2 Bb1 Qad2 Bb7 Rg2 Bc2 Rh2 Rg3 Bh4 Bh6 f6 h8Q+ Kf7 Rgg1 Be1 Bf4 Rg2 Qh6 Kg8 Bg3 Rh2 Qg5+ Kh8 Ba6 Rf2 Bc4 Re2 Bg8 Rg2 e8Q Ne7 Qg4 Nc8 Kd8 Rh2 Bf7+ Kh7 Qf8 Rf2 Bf4 Qef3 Rb8 Qc3 Bc5 Rh2 Bh5 Rd2 Bb1 Ra2 Bc2 Qfe2 Qe7+ Kh8 Qg5 Qg2 Qe2 Bh7 Qh6 Qgf3 Rg5 Qe4 Bg3 Qcd3 Ba3 Bc3 Qg6 Q3d2 Rbb5 Bb4 Qf7 Bc5 Bb4 Rb8 a8Q Ba7 Qad5 Ra8 Rb6 Bb8 Qg6 R8a3 Qa5 Ra4 Qg7#
2b1rrn1/3n1kqN/3r2N1/2R2NQP/1R2pQp1/q3p3/Q3q2Q/1K2R1B1 b - - 0 1 legal: proof: b4 b5 e4 f5 a4 a5 bxa5 h5 g4 hxg4 a6 e6 a7 Ne7 a5 Ng8 a6 d5 c4 Bc5 Bg2 Be3 exd5 Bd4 Be4 Bb6 c5 fxe4 cxb6 Nxa6 b7 Nb8 d4 g5 Kd2 c5 Kc2 g3 f4 g4 h4 e5 h5 c4 d6 c3 d5 g2 d7+ Kf8 d6 b4 f5 Qf6 d8Q+ Kf7 d7 Na6 b8Q Qg7 f6 Bb7 Qd4 Ne7 Ra4 Nc8 Nf3 g1Q Na3 b3+ Kb1 b2 Nb5 Qg5 Rb4 Qd1 Re1 Re8 Nh4 Nc5 Ng6 Qe2 Be3 Ne7 Bg1 e3 Qf4 e4 Nd4 Ng8 Nf5 Bc8 Qbe5 Rb8 a8Q Rb6 Qh2 Rd6 Qef4 Qh6 Qda5 Qg7 d8R Rf8 Re8 Nd7 Re5 Re8 Rc5 c2+ Ka2 c1Q Q8a7 Qc3 Kb1 Qa3 Q7a6 Ke6 f7 Kf6 f8N Kf7 Nh7 Rf8 Qd3 Re8 Qd2 Rf8 Kc2 b1R Qd8 Rb3 Qdg5 Rbd3 Kb1 R3d5 Qff2 Re5 Qff4 Ree8 Qa2+
2k1N1KN/4p1p1/1BQ1r1qB/bn2R3/3p3b/2b2P1Q/pNQ1B3/2rr2N1 b - - 0 1 illegal: No proof kernel forced: wxDB
bq2r2b/4rBr1/1B2Q3/b1PQq1kn/8/1r1R1Kn1/2NBN1NN/1Qr4b b - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 c5 a4 cxd4 axb5 Rh7 g4 Rh8 Ra3 g6 Rg3 g5 exf5 gxf4 g5 Nc6 Rg2 Nb8 Rg4 hxg4 Kf2 Kf7 c4 a5 h4 e5 g6+ Kf6 g7 d5 b6 e4 c5 f3 b5 d3 b7 d2 b6 g3+ Ke3 a4 h5 f2 h6 g2 h7 a3 Rh4 d4+ Ke2 d3+ Ke3 a2 Kf4 a1Q Qh5 d1B Qg4 d2 Na3 e3 Nc2 e2 Qh3 e1B Nf3 g1R Nh2 Ra3 Bc4 Nd7 b8Q Bf3 b7 f1R Bf7 d1R Bd2 Ne7 g8Q Rc1 Qhg2 Rf2 Rh3 Rb3 Q8g4 Rg8 h8N Bg7 Ng6 Re2 Nh4 Re8 Qh1 Qb6 Ng2 Bh8 Qa8 Bc6 b8B B8b7 Bc7 Bd5 Qa2 Ba8 Qb1 Qb8 Rd3 Bdb7 Qh3 Qe5+ Kg4 Re3 Bb6 Re4+ Kf3 Bc6 Nce3 Kg5 f6 Bd5 Qe6 Nf5 Bg6 Bdc6 f7 Ng3 f8N Nf6 Bf7 Nfh5 Ng6 Bd5 N6f4 Bdb7 Nc2 Re7 Be3 Ba5 Bd2 Bd5 Nh4 Rg2 Qd1 Rg1 Ne2+ Re3+ Kf2 Bh1 Ng2 Qec7 Bb4 Re8 Rd6 Re5 Qh6+ Kf5 Ngf4 R5e7 Rd8 Qe5 Qe6+ Kg5 Qd3 Nf5 Bd2 Kh4 Qdc4 Rgg8 Rd3 Rg7 Qcd5 Kg5 Ng2+ Nf4 Kf3 Ng3 Ne3 Nfh5 Nc2+
rQ1rb1B1/1nQr3R/Q1qQK3/1R3n2/1b2R1q1/2q2r2/4NkP1/bbB3B1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Na3 exf4 Nc2 Qd6 axb5 Qd7 b6 Qd6 b5 Qd8 Nb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 h5 d3 b3 d6 f3 b7 f2 b6 h3 d7 b2 Ra6 b1B Bd2 h2 Bc1 f4 Nf3 h4 Qb3 h3 Ra2 Qg5+ Ke6 Ne7 e5 Na6 b8B Nf5 b7 Qg4 Nh4 Kd4 Qb6+ c5 Rg1 h1R Qb3 f3 Rd2 Ke3 Qc4 h2 d4 Rh7 Qb5 c4 d5 c3 d6 c2 Bc4 f1Q Ng6 f2 Nf4 Qe1 Ne2 f1R Rd5+ Kf2 Qa5 Qc3 Rb5 Be7 Bc7 Rh8 b8Q Rd8 Bb3 Bb7 Qa4 Bc6 Qc4 Rh8 d8Q Be8 d7 Bb4 Qdc8 Rd1 d8Q Rd7 Qe7 Rh3 Qd6 Rf3 Rd1 Rg1 Rd4 h1Q Re4 Rd1 Ba2 Qgh5 Rh4 Qg5 Rh7 Qg4 Qf8 Qh2 Kf6 Nc5 Qa6 Rd8 Qcf7 R1d4 e6 Bd7 e7 Nb7 e8R Qd6+ Be6 Qd5 Bh2 Qdc6 Re7 Be8 Q7g7 Q6c4 Bg8 Qc5 Re4 Qc6+ Qfd6 Rd5+ Ke6 Rd2 Qgc7 Rd5 Bg5 c1B Bgf4 Bb2 Bc1 Q6c5 Qde7 Ba1 Qf8 R5d7 Qfd6 Qc6 Bg1+
QQ1qQ1nK/1n2N3/4b2b/1NPk1r1R/4n2R/1r1B2Rb/nnn1bN2/6Q1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Ke2 a5 Kf3 d5 Kg4 Kd7 b4 Kd6 h4 e5 c4 d3 g7 d4 c5+ Kd5 b6 a4 h5 a3 b7 a2 b5 e4 h6 e3 Kh5 e2 Kg6 e1N f6 g4 b6 d2 f7 d3 h7 f3 Qe2 d1N Qe8 d2 Qe7 g3 Bh3 f2 Ne2 f1B Ng1 g2 Qe3 Nd7 b8Q Ra3 b7 Ndf6 Qa8 Nb2 Bf5 d1B Bd3 Be6 Rh4 Ne4 Nh3 g1N Nf2 Rb3 Na3 Bde2 Nb5 Bfh3 Rc1 a1N Rc3 Nec2 Qc1 Nb4 b8Q+ Nc6 Qd1 Nc2 Qf1 Be7 f8Q Bg5 Qe8 Bh6 Qd1 B2g4 Qb1 Ne2 Qg1 Nc1 Rh5+ Bg5 Rh4 Be2 Rh5 Na2 Rh4 Ngf6 g8N Bd2 Kg7 Bc1 Nh6 Rf8 h8R Ng8 Nf5 Rf6 R8h5 Bh6+ Kh8 Rf8 Qaa7 Na5 Qaa8+ Nb7 Rc4 Nd6 Rcg4 Ne4 Rg3 Rf7 Nfd6+ Rf5 Nc8 Be3 Rg2 Bg5 Rg3 Bh6 Ne7+
2N1r2b/1B2qrBN/q1Q2B1Q/2bqB1q1/N3Q1k1/1q1RPb2/5K1n/2b2b2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 b4 f5 Bh6 Nc6 Ra6 Nce7 Bc1 h5 Rg6 f4 Rg5 Nf5 gxf5 Bb7 Rg6 Bc8 Rg4 hxg4 c4 Ke7 h4 Kf6 b6 d5 b5 a5 b7 g5 b8B g3 b6 d3 h5 g4 c5 Kg5 h6 d4 h7 g2 f6 f2+ Kd2 f3 f7 g3 c6 a4 c7 a3 b7 a2 Qb3 a1B Qd1 Ba3 f8Q Qe7 Bb2 Nh6 Rh5+ Kg4 Qd8 Re8 h8Q Ra7 Nh3 g1Q Qh7 g2 Rd5 Bf5 c8N Be4 Qc2 Bc5 Kd1 d2 Qh8 Ba3 Bc3 Bc1 Bf4 Bab2 b8B Rc7 Rd6 Ba8 Qe4 Rd7 Kc2 d3+ Kb3 d1Q+ Kc4 d2 Kd3 Kh5 Qed4 Qh4 Bg5 Rf7 Q8b6 Qb3 Qbc5 Be4+ Ke3 Ba1 Qdc4 d1Q+ Rd2 Ba8+ Be7+ Bd5 Ng5 Bc6 Qf8 Bd5 Nh7 Ng4+ Kd3 Nh2 Ke3 Qf6 Qd3 Qd6 Bb2 Qe1 Nc3 Qd7 Na4 Qdb5 Ba3 Bh8 Bb2 Qh1 Bd6 g1B Qh6+ Kg4 Bg2 Bb7 Qc2 Qg5+ Bf4 Bd5 Bg7 Be4 Bef6 Bd5+ Kd4 f1Q+ Qe3 f2 Bd6 Bc4 Bb7 Bd5 Qc6 Qf3 Qd3 Qff5 Rd1 Bf3 Qdc4 Qe6 Bb8 Qe7 Bbe5 Qa5 Q4d5 Qa6 Qdc4 Qe1 Q4d5 Qea5 Qe4+ Bf4 Rd2 Q5b5 Rd3 Q3d5+ Kc3 f1B Kc2 Qb2+ Kd1 Qbb3+ Ke1 Be3 Qec4 Bc5 Qe4 Bd6 Kf2 Bb4 Qeg6 Bc1 e3 Bc5 Qe4+
2nq1bnq/2b2b1Q/1n3N2/1Q4kP/1qR1K1N1/4RBQn/qR2r2q/1N4Q1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 Kf2 Ke7 c4 Kf6 h4 d5 b4 g4 e4 g5 h5 g3+ Ke1 a4 Kd2 g4 Kd3 g2 e5+ Kg5 e6 g3 b6 f2 c5 f3 e7 a3 e8R a2 b7 Nc6 b8Q Nce7 b5 Be6 c6 Bf7 b6 Nc8 Be2 f1N b7 f2 c7 Nd2 f6 f1Q Re3 Qf4 Bf1 Nc4 Rh3 N4b6 Ne2 g1Q Rh4 g2 Nc1 Qgh2 Be2 g1N Bf3 Nh3 Qg1+ Qg4 Qa7 Qgg2 b8N Qdd6 Qa6 Qb4 Nd7 Rh6 Qb5 Rh7 Nd2 Rh6 Rb1 a1B Rb3 Bc3 Nb1 Ba1 Qe1 Qa2 Qd1 Bc3 Rb2 Be1 Rf4 Bg3 Qg1 Rh8 Ne2 Rh6 Nec3 Rh8 Nd1 Rh7 Nf2 Rg7 Kc2 d3+ Kd1 d2 Kc2 Rh7 Kd3 Rh8 Rc4 d1Q+ Rd2 Qc1 Ng4 Qcb2 Rde2 Qba1 Rb2 Be5 Qg3 d4 Ke4 d3 Qg1 d2 Qg3 Na7 c8Q d1Q Qc7 Nac8 Qcc5 Qd6 Qd4 Qc7 Qd1 Qd8 Qdg1 Be6 f7 Bd5+ Kd3 Bc7 Ndf6 Rh6 Nd7 Re6 Ndf6 Bc5 f8Q Be7 Re1 Re2 Qf7 Bc5 Qh7 Bf7+ Nd5 Bf8 Kd4 Rd2+ Ke4 Rc2 Re3 Re2 Rd2 Qaf6 Rb2 Qh8 Ndf6+
k2NN3/R1P2Qbn/Kn6/1QrB2q1/2q3R1/n1nN1n2/b3Nb2/1b2qRQ1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 Kd2 d5 Kd3 Kd7 b4 Kc7 h4 Kb7 e4 f2 c4 g4 e5 g5 b6 g3 c5 a4 h5 a3 e6 f3 b5 g4 h6 a2 e7 g2 e8Q g3 f6 Bg7 c6+ Ka8 h7 Be6 c7 Nd7 f7 Ngf6 Nh3 g1B f8Q g2 Nc3 Bg8 Rc1 a1N Ne2 Nc2 Nhf4 Na3 Rh4 Be6 Qb4 Rg8 h8R Nh7 Qf7 Qg5 Rg4 Rd8 Rf8 Rb8 Rb1 Rd8 Kd2 d3 Qc1 d4 b7+ Ka7 b8N Ba2 b6+ Ka8 Nc6 Rb8 Kd1 d2 Qb5 Re8 Nd8 Re5 Nd3 Rc5 Rb2 Bb1 Nc3 Ba2 Be2 f1B b7+ Ka7 b8N f2 Qb1 Nb6 Nd7 Ka8 Qa1 Bb1 Nf6 Ba2 Ne8 Bb1 Ne5 Ba2 Bc4 Bd3 Rb3 Bdb1 Ke2 d1N Nd3 f1N Qf5 Nd2 Qf7 Bf2 Rb4 g1Q Bb3 Qh6 Bd5+ Qc6 Rb3 Nf3 Rb2 Ne5 Kd2 Qg3 Ne2 Nc3 Rb4 Bc2 Qh1 Bcb1 Qg1 Nf3+ Kc1 Be3+ Kb2 Qe1 Qg8 Nh4 Qc4 Nd7 Ndc1 d3 Rf2 d2 Rf1 d1Q Qf7 Rb5 Nd3 Nf3 Qb3 Ra5 Rb7 Qc4 Qb4 Rc5 Qb5 Nb6 Qf4 Nc2 Qf7 Na1 Ka3 Bf2 Qb4 Qdd2 Qb3 Qa6+ Kb4 Qg5 Qb2 Rc6 Qb3 Qc4+ Ka5 Rc5+ Qb5 Nc2 Ka6 Na3 Ra7#
6r1/qRr3Q1/2RnK3/3N1PBN/k1Nb4/5Qn1/QbnNp1R1/n3bnr1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 g4 fxe4 f5 b5 axb5 Nc6 Be2 Nb8 Bf3 Bb7 f6 Bd5 Be2 Be6 Bf3 Bf5 gxf5 Nc6 Be2 Nb8 Bg4 hxg4 Ke2 e5 b4 g5 h4 a5 c4 d5 c5 Kd7 f7 a4 b6 Kc6 b7 Kb5 c6 g3 c7 e3 Kd3 g4 c8N g2 h5 e4+ Ke2 a3 h6 d3+ Ke1 a2 h7 d2+ Ke2 g3 Nf3 g1B Nh4 g2 Rh2 d4 Qe1 d1N Na3+ Ka4 b5 Nh6 b6 Rg8 h8N Qc7 Qd2 Bg7 f8Q Nf7 Nf3 Nc6 b8R Nf2 b7 Ra7 Ne7 Nd6 Nhg6 Nh1 Nf4 Nb4 Nh5 Qd7 Rb1 a1N Qa2 Nbc2 Rc8 Qc7 b8Q d3+ Kd1 e2+ Kd2 Bc5 Qb7 Be5 Rb6 Bb2 Qg7 Ng3 Qbd5 Qb7 Rcc6 Bcd4 Rb5 Qa8 Rb3 Rc7 Rb7 g1R Rg2 Bb6 Rh2 Qa7 Rg2 Nd4 Ke3 Bc5 Kf4 Ndc2 Ne1 d2 Nf3 d1N Bd2 e1B Nc4+ Bba3 Ke5 e3 Kf6 e2 Bg5 Bd4+ Ke6 Nde3 Nfd2 Nef1 Qe4 Nb3 Nd5 Nba1 Qb1 Bc1 Qf3 Bcb2 Qa2+
nB3bbq/b1b1r1r1/2NnQ2b/2P1np2/1Qr1R3/N1Q3Bk/3N2B1/6BK b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 axb5 e6 f5 Bb7 Kd2 Ba6 Ke1 Bc8 g4 f6 g5 exf5 gxf6 Ba3 Bg5 Bd6 Bc1 Bf8 b4 h5 Ra3 Bc5 Rg3 Bf8 Rg4 hxg4 Kf2 Kf7 Kg2 Kg6 c4 Kh5 h4 d5 e4 a5 b6 g5 b7 d3 f7 d4 b5 d2 e5 d3 b6 a4 e6 a3 e7 a2 e8Q a1B Qd7 Ne7 Ba3 Na6 b8B Bag7 b7 Rh7 Qc6 Ra7 Bc1 Nc7 Qc2 d1R Qf6 g3 Rh3 Kg4 h5 d2 h6 Na8 Rh2 Nc6 Nc3 Be6 Nf3 Ne5 Nb1 Qe8 Kg1 g2 Qc3 Qc8 Bb2 Rc1 Na3 d1N Nd2 Ne3 Rh4+ Kg3 Rg4+ Kh3 Re4 g4 Qb4 Rc3 Be2 Rc2 Bd4 Rc3 Bd6 Bd5 b8B Re7 Bf3 Rc2 Qe6 Qd8 Kf2 g1B+ Ke1 Bh2 Kf2 Bf4 Kg1 g3 Qc3 g2 c5 N3c4 Qb4 Rc3 Bdc7 Nd6 Bf2 Rc4 Be3 Rh8 h7 Rg8 h8Q+ Bgh6 Qhf6 Nd7 Qfc3 Rg7 Kf2 g1B+ Kf1 Bgh2 Bg1 Kh4 Kf2 Bg3+ Kg2 Ne5 Kh1 Qe8 Bb6 Kh3 Bd8 Rc7 Bh4 Bh2 Be1 Re7 Bg3 Ng6 Qc2 Nc8 Ba7 Bb8 Bh4 Bhc7 Qf6 Nd6 Bg3 Ne5 Qcb3 Rg8 Qd3 Bfg7 f8N Rd4 Ne6 Rc4 Qdc3 Qf8 Qg6 Qf6 Nd4 Bf8 Qf7 Qh8 Nc6 Rg7 Qf6 Bg8 Qf7 Bb6 Qe6 B8c7 Bb8 Ba7 Bg2#
N3b3/NBPr4/bBb5/Q2q1Bnk/Q1R5/3bN2N/b1pr1nnK/2r3Q1 b - - 0 1 legal: proof: e4 a5 b4 b5 c4 c5 h4 f5 exf5 g5 a4 gxh4 Ra2 Bg7 Rb2 bxc4 b5 Bc3 Rb4 axb4 Ba3 Bg7 Bc1 c3 d3 c4 d4 Be5 Nf3 Bd6 Ng1 Bc5 dxc5 Ba6 Qd4 Bb7 Qd1 Bc8 f4 Kf7 Kf2 e5 g4 h5 Kg2 d5 a5 h3+ Kg3 b3 b6 c2 g5 c3 c6 d4 a6 d3 f6 Kg6 c7 e4 f7 h2 f8Q d2 a7 b2 b7 e3 Qe2 d1B Qg2 e2 Qd5 e1N Qfc5 Nd7 b8N h4+ Kh3 Nh6 f5+ Kh5 g6 Nf7 g7 Ng2 g8B Nf6 Nc6 Ne4 Ba6 Be2 Be3 c1R Bb7 c2 Bh7 Bd3 Nd2 b1B Nf1 Ba2 Bf2 Qd6 Ne3 Rd8 Qa3 Qe6 Qa4 Rd7 Qda5 Qd5 f6 Rb8 Bf5 Ra8 Ne2 Rb8 Rf1 h1B a8N Nfg5+ Kh2 h3 Bg1 Nf2 f7 Qc5 f8Q Qd5 Ba6 Rb6 Na7 Rbd6 Qg8 Bb7 Qg7 Bc6 Bb7 Ba6 Kg3 h2 Rd1 Bcb5 Rd4 Bd3 Rg4 Ne1 Qg8 Bg2 Re4 h1B Rc4 Bge4 Kh2 Ng2 Bh3 Bg6 Bf5 Be8 Nf4+ Kh6 Nh3 Kh5 Nd1 Re6 Qg7 Re2 Ne3 Rd2 Ng4 Nfe4 Bb6 Nf2 Ne3 Nf4 Qe7 Qf7 Nf1 Bc6 Qe1 Qd5 Ne3 Ng2 Qg1
Q4Rr1/QBP1b3/3pnN2/2Q2n1b/b1KNb3/Rn3R2/1r3kbN/4N1qr b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 Bd2 cxd4 axb5 Ba6 b6 Bb7 b5 Bc8 Bb4 axb4 Ke2 Kf7 Kd3 Kf6 g4 Ke5 c4 Kf4 c5 e5 c6 h5 b7 b3 c7 h3 f6 b2 f7 d6 g5 e4+ Kc4 h2 g6 e3 g7 h4 b6 h3 f3 Kg3 f4 d3 f5 e2 f6 e1N Ra7 d2 Kb3 Nc6 b8N Kf2 b7 Bd7 Ba6 Ng2 Qc2 Nh6 g8N Nf5 Na3 b1R+ Kc4 Ncd4 Nf3 Rb2 Nc6 Be7 f8Q Nf4 b8Q Nfe6 f7 Nb3 Ncd4 Ba4 Nf6 Rh7 Ra1 h1B Nh2 Be4 Bb7 Bg2 Qc3 d1B Nac2 Bh5 Ne1 Be4 Qh8 Qg8 f8R Qg1 Ra3 Bg2 Ra5 Be4 Qa7 Rb8 Rf7 Rg8 Rf8 Rh6 Re5 Bg2 Re3 Rh7 Nf1 h2 Qb4 h1B Qbc5 Be4 Nh2 Bhg2 Rf7 Rg4 Qha8 Rh8 Rg3 Rh4 Rf8 Rg8 Nf1 Rh1 Nh2 Bec6 Rd3 Bce4 Rf3+
BK6/r2Q4/bn1Q4/1nrbrB1N/2Q5/1P5B/1qpnrqN1/r1N1B1kR b - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 h4 gxf4 a4 b5 axb5 e5 g5 Be7 g6 Bg5 Ra3 e4 Rf3 exf3 hxg5 Kd7 Nc3 Ke7 Nb1 Ke8 Kf2 Ke7 d4 Kd6 e4 f5 b6 c5 b3 h5 d5 Ke5 b7 a5 d6 a4 g7 c3 g6 c2 d7 a3 Rh3 a2 Ba6 a1R Be2 c4 Nd2 Kd4 e5 h4 e6 c3 e7 R8a7 e8N Nf6 g8B Nc6 b8Q Nd5 g7 Qf6 d8Q Rh5 Bf7 Ba6 Bb2 c1R Rh2 h3 Qdc8 Nb6 Nf1+ Ke4 g8B Nd4 Ne3 Nb5 Ba3 c2 Ng7 Qb2 Qdd7 Re1 Be6 Rg5 Rg2 h2 Qbd6 h1B Bh7 Rh5 Bd1 Rg5 Nh5 Re2+ Kf1 f2 Bb4 Ra5 Rh2 Ra1 Bd5+ Kd3 Bc6+ Bd5 Ng2 Re5 Qg8 Ke4 Ke2 f1Q+ Kd2 f3 Ba8 f2 Ne2 Kf3 Kd3 f4 Bf5 Qg1 Qgc8 f1N Nc1+ Kf2 Bdg4 f3 Bh3 Nd2 Qc4 Qe1 Ba5 Kg1 Bb4 f2 Ba5 Nc3 Kd4 f1R Kc5 Rf2 Bb4 Rfe2 Ba5 Bf7+ Kc6 Nb5 Bc3 Qf2 Bb4 Nf3 Be1 Nd2 Qb7 Na3 Kc7 Nb5+ Kb8 Rc5 Qbd7 Bd5 Be6 Rge5 Beg4 Qf4 Bf5 Qf2 Rh1+
QK1bk3/7N/2q1RqB1/1RbQ1Br1/1QP5/1nnRn1r1/bB3np1/3n2Q1 b - - 0 1 illegal: No possible last move
R2rN3/3nR3/2Qb1b1k/3n3P/2N1Q1Qn/1rR2np1/q4qr1/n1KNRB2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Bb7 Ke1 Be4 Bg5 f4 Ra1 Bf5 gxf5 hxg5 Kd2 Kf7 b4 a5 e4 d5 h4 f2 c4 f3 c5 g4 b6 g5 f6 Kg6 c6 a4 b7 g3 f7 d3 b5 d4 b6 g2 c7 a3 c8R a2 e5 g4 e6 g3 h5+ Kh6 e7 Ra3 e8Q Ne7 Kc1 d2+ Kc2 d3+ Kb2 Nd7 b8Q Ng6 b7 Bd6 f8N Qa5 Ne6 Nh4 Qe1 d1R Nd4 d2 Nh3 g1B Q1e4 Rb3+ Kc2 Re1 Ne6 d1N Rc3 Re2+ Kc1 Ne3 Nc7 Nd5 Nd2 Qa8 Qec8 Rd8 Nc4 Qa7 Rb1 a1N Ne8 Qa2 Qbc7 Reb2 b8R Rd2 Bd3 f1N Qc6 f2 Ra8 Nh2 Bf1 N2f3 Rb2 Rd4 Re2 Rd2 Nf4 Rdb2 Ng2 Rd2 Nge3 Rdb2 Bg2 f1Q+ Nd1 Bd4 Rg1 Qf2 Rge1 Bf6 Bf1 Qd4 Ree3 Rg2 R3e2 Qf2 Ree3 Nf8 Qcg4 Nd7 Qd4 Rg1 Re7 Rg2 Qde4
1r3qbB/5rn1/r1QQ3N/rn5p/2K1kq2/2P3B1/5QNN/rbNR1B1b b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 a4 b5 axb5 e5 f4 gxf4 b4 Nh6 g5 Ng8 Ra2 Be7 g6 Bg5 Ra3 e4 Rf3 exf3 hxg5 Qf6 Rh3 Qe7 Rh1 Qd8 Kd2 Ke7 Kd3 Ke6 e4 Ke5 b6 h5 c3 f5 b7 a5 g7 d5 g6 a4 b5 f2 b6 a3 Qf3 a2 Rh2 a1R Ba3 Nh6 g8N Qf8 g7 Ra6 Qg3 Be6 Be2 f1Q Rh1 Nc6 b8N Na7 b7 Nb5 Qf2 f3 Bc5 f4 Na3 Nf5 Nh6 Bg8 Nc2 R1a5 Ne3 Qc1 Ng2 Qf1 Kc2 d3+ Kb3 d2 Be7 Qc1 Bf1 d1R Ne2 d4+ Kb4 Qd2 Nc1 d3 Bc5 Qe3 Rg1 d2 Nd7+ Ke6 e5 Kd5 b8B Ke4 e6 Re1 e7 d1B Qa2 f2 Bd4 f3 Bg3 Qf4 Ne5 Bc2 Neg4 Bb1 Nh2 Rd1 Qf7 Re1 Kc4 Rd1 Be2 f1B Bf6 f2 e8Q+ Qe5 Qb8 Qf4 Be5 Rd7 Qd6 Rb7 Qfe6 Rf7 Qe8 Bh7 g8Q Ng7 Ne1 Bh3 Ng2 f1R Qc8 Rd1 Bf1 Bg4 Qcc5 Bf3 Qf2 Re1 Nh4 Bh1 Ng2 Re2 Bd4 Rea2 Be5 Ra1 Bd4 Qe7 Qe8 Rg8 Qed7 Rb8 Qc8 Bg8 Qe8 Ne6 Bh8 Ng7 Qc8 Qef6 Qcc5 Q6f5 Qcc6+ Qd5+ Kb4 Qg4 Qfc5 Qc8 Qf2 Qf8 Bc4 Nf5 Rd1 Ng7 Qe8+ Qe5 Bf1 Rba8 Qc8 Qf4 Kc4 Rb8 Qcc6+
K7/N1P1q3/2nB3r/2R4b/q1q1nn1N/2kQ2bN/rpBq1QQ1/B3Q1q1 b - - 0 1 legal: proof: f4 a5 d4 g5 b4 axb4 e4 f5 exf5 c5 Be2 cxd4 Bc4 Qa5 Bf1 Qd8 fxg5 h5 g4 Bh6 a3 Rh7 g6 Bf8 g5 Rh8 a4 Qc7 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 Kd2 e5 Kd3 Ke7 Kc4 Kd6 Kb5 Kd5 h4 b6 c4+ Ke4 f6 d5 h5 b3 a5 b2 c5 g3 f7 g2 h6 d3 h7 Kd4 c6 d2 a6 e4 c7 e3 g7 e2 a7 e1N g6 Nc6 Rh5 Nd3 Nh3 g1Q Nc3 b1Q+ Bb2 Nf6 g8Q Bg4 Ka6 b5 Kb7 b4 g7 b3 Ba1 b2 Qe1 Nf4 Bd3 d1Q Bc2 Bd6 f8B Ne4 Qf7 Qbc1 g8Q Qdd2 Qgg6 Qe7 Nb5+ Kc4 Qff6 d4 Rc5+ Kb4 Qfh4 d3 Qhf2 Bh5 Qf5 Ne6 Q5f3 Bg3 Q3e2 Nf4 Qee3 Rg8 h8N Rg6 Q3e2 Rh6 Ng6 Qh2 Nh4 Qg1 Bb3 Qc4 Bc2 Qe5 Bd6 Qe7 Nd4 Kc3 Qe2f1 Rg8 a8Q Rd8 Qa6 Ra8 Qb5 Ra4 Qa6 Ra2 Nb5+ Kb4 Na7 Kc3 Qee2 Qc1 Qf2e1+ d2 Q2f2 Qd1 Ka8 Qc1 Qee2 d1Q Qee1+ Qcd2 Q1g2 Qg4 Rf5 Qa4 Qaf1 Qe2 Rc5+ Qec4 Qd3+
1Q2Q3/B1BPrn2/n2R2rb/6q1/n1rpnq2/KBQN3k/2R4q/B4R1b b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 d4 d6 c4 Kd7 c5 dxc5 Be3 Ke8 Bg5 Qd7 Bc1 Qd8 d5 Kf7 Nd2 Ke8 Nb3 Na6 Nd4 cxd4 Bf4 Nb8 Bd2 Ba6 Bc1 Bc8 Kd2 Kd7 Kc2 c5 Kb3 h5 f4 a5 g4 e5 f6 e4 d6 Ke6 b6 h3 f7 h4 d7 h2 b7 a4+ Ka3 c4+ b4 e3 g5 Kf5 g6 e2 g7 Kg4 f5 h3 f6 c3 Ra2 c2 Bb2 c1Q Bg2 Nh6 Qc2 e1R Bd5 Ra6 Ne2 Qf4 g8Q+ Kh4 Rf1 h1N Qc6 h2 Bb3 Ng3 Qc3 h1Q Nc1 Qh2 Nd3 Kh3 Qg6 Rd6 b5 Na6 b8B Bb7 b6 Bh1 b7 Rc6+ Bd6 Rg8 b8B Rc4 Ba7 Qe7 Qe4 Rg6 Qe3 Bg7 f8R Qd8 f7 Qdg5 Qe7 Re5 Bdb8 Ne4 Bc7 Ree6 Qeb4 Re7 Rb8 Bf8 Rb6 Bg7 f8Q Nf7 Rd6 Bh6 Qbb8 Qd5 Raa1 Qdg5 Ka2 a3 Qe1 Qgg3 Rc1 Qgg5 Ka1 a2 Qfe8 Qgf5 Bc3 Qc5 Rc2 Qcg5 Kb2 a1N Ba4 Nb3 Ka3 Nbc5 Bb3 Na4 Ba1 Qgg3 Qa5 Qgg5 Qc3
rb2RKnB/2nQ1R1Q/8/4pq2/2BbP2k/2rNbR2/QB3bQq/b5b1 b - - 0 1 legal: proof: c4 a5 g4 f5 b3 fxg4 a4 b5 axb5 d5 Bb2 dxc4 Ba3 Nh6 Bc1 Ng8 b6 h5 Bg2 h4 Bf1 a4 Nc3 a3 Ne4 Bd7 Ng3 Ba4 bxa4 hxg3 h4 Kf7 f4 Kg6 d4 Kh5 Kd2 c5 Kc3 e5 e4 g5 b7 g2 f5 a2 d5 Ra6 d6 Rh7 f6 Re7 d7 Rd6 a5 Re8 a6 Rc6 a7 Na6 b8R Qc8 a8Q Bd6 d8Q Qf5 f7 Nc7 Nh3 g1Q f8Q Qh2 Qd2 g3 Bb2 g4 Qd7 g2 Qfg7 g1B Nf2 g3 Nd3 g2 Qh7+ Kg4 h5 Bf2 h6 g1B Rd1 a1B Qa2 Kh4 Be2 Rc8 Rf1 Ra6 Rb7 Rca8 Rb8 Rc6 Re8 Bd4+ Kc2 c3 Kb3 c2 Kc4 c1B Rf3 Bgf2 Rf1 Bg1 Qc2 Bce3 Qd2 Bef2 Qc2 Ne6 Kd5 Bb8 Qd2 Rc7 Kd6 c4 Qc2 c3 Qd2 Nf6 Ke7 c2 Kf7 c1B Qc2 Nc5 Kf8 Bce3 Qd2 Na6 Qc2 Qg5 Qd2 Ng8 Rf7 Be1 R1f3 Rc3 Bf1 Nc7 Qg2 Qgf4 Qh8 Nd5 h7 Ra7 Nc1 Qf5 Bc4 Nc7 Nd3 Be1f2 Qhg7 Ra5 h8B Ra8 Qh7+
r2Q4/2r1nr2/1Q3RqB/1BBQ1r1p/k1rqQ3/6qR/1nP2b2/1RnN1K2 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Nd2 Bh6 Ndf3 gxf3 g4 Bb7 h3 Bd5 g5 Be6 Bg2 Bg7 Bf1 Bg4 hxg4 Bf8 b4 f5 e4 h5 e5 d5 g6 Kd7 b6 Kc6 b7 a5 g7 d3 e6 Kb5 e7 f2+ Kd2 a4 e8R f3 g5 a3 g6 f4 Re4 d4 Ne2 a2 Rh3 Qb6 Rh4 Na6 b8B Nc5 Rg4 Rh7 Bh3 f1R Re7 f2 Ba7 f3 Rg3 Ka4 Rf7 Ne7 Rb1 a1R Qe1 Nb3+ Kd1 d2 g8Q Qf6 g7 Qg6 b5 Rc8 b6 Rc4 b7 Ra3 Bb2 Nc1 b8Q Ra1 Qh8 Ra3 g8Q Bh6 Qbd8 Be3 Rf5 Rf7 Qe5 Rg1 Qed5 f1Q Rf4 f2 Rf6 Qg2 Qb6 f1R Qgd8 Bf2 Bc8 Qf3 Rh3 Qfg3 Ba6 Rc7 Rh2 Rac3 Ba3 R3c4 Bc5 Rh1 Rg2 Rh4 Rh2 Rf4 Rh3 Rf5 Nf4 Rf8 Ng2 Rh8 Ne3 Re8 Q8d6 Ra8 Qd8 Na2 Ke2 d1N Bb8 Nb2 Nd1 d3+ Kd2 Nc1 Qee4 Bg1 Ba7 R1f2+ Ke1 R2f3+ Nf2 d2+ Kf1 R3f4 Be3 Rf3 Bh6 d1Q+ Qe1 Qd4 Qee4 Nc8 Qbb7 R3f4 Bc5 Ne7 Qb6 Rf3 Rd6 Rf7 Re6 R3f5 Rf6 Rg5 Nd1 Bf2 Qa7 Re5 Qb6 Rf5 Bb5#
RQ1n1nB1/1bR2N2/1kp2n1n/N3q1r1/2Q4N/3Q3r/1RP2nq1/2K1R1nn b - - 0 1 legal: proof: f4 b5 e4 f5 a4 d6 e5 dxe5 axb5 exf4 g3 f3 Kf2 Kf7 Ke3 f2 Ke2 Ke8 b3 f4 Bb2 e6 Bf6 h6 Bg5 hxg5 Qe1 f3+ Kd1 Nf6 Kc1 Bd6 Qd1 Bf4 gxf4 Ng8 h4 Kd7 d4 a5 h5 g4 h6 g5 h7 g3 b6 Kc6 b4 e5 b7 a4 d5+ Kb6 b5 g4 f5 g2 d6 c6 d7 g3 f6 e4 f7 e3 f8R e2 Qd3 e1Q+ Qd1 a3 Bd3 f1N Rf7 a2 Ne2 g1N Bc4 g2 Nec3 f2 Rf3 Qg5+ Rf4 Nh2 d8N f1N Ne2 Ng4 Nd2 N8h6 Rf7 Nh3 Ng3 g1N Nf5 Nf6 Nh4 Ng3 Rc7 Qee5 Nf7 Nbd7 b8R+ Bb7 Rb1 a1N Rb2 Qg4 Nb3 Nf2 Qd3 Ra5 Ra8 Nf8 Bd5 Qf3 Be6 Qg2 Bd5 Ra4 Na5 Rg4 Bb3 Rg5 Qc4 Nf3 Re1 Ngh1 Ba2 Ng1 Qd3 Rhg8 h8Q Rh5 Be6 Rgg5 Qg8 Nb3+ Kb1 Nd2+ Kc1 Ndf3 Bc4 Nd4 Bd5 Kc5 b6 Nde6 Bc4 Nd8 Bb3 Bc8 b7 Kb6 b8Q+ Bb7 Re2 Rg3 Re1 Rh3 Qg4 Rf5 Qgc4 Rg5 Qg4 Nd5 Nh8 Nf6 Bg8+ Qb5 Qge4 Rh2 Nf7 Rh3 Ra2 Qd5 Qec4 Qe5 Rb2+
Rb3bQK/4n1N1/q4kqR/NQq1R2q/4bN2/3Qqp1q/1PB1n3/6rQ b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 Kf2 Ke7 c4 d5 h4 a4 e4 d3 e5 g4 e6 g5 b6 d4 c5 d2 c6 a3 c7 d3 h5 a2 b7 Qd5 h6 Kf6 h7 Ne7 Qb3 d1Q Nh3 d2 Na3 Nbc6 b8Q Qc1 Q8b5 d1Q Nc4 Rg8 Na5 Bb7 c8Q Nd4 Q3d3 Qdc5 h8Q+ Rg7 Qa8 Be4 Qg8 Q1c3 Rc1 a1Q Rc2 Qa2 Re2 Qab3 Re3 Ne2 Qab7 Q3e5 Bg2 Qed6 Qbd5 Qa6 Qdc6 Ke5 f6 Kf5 f7 Kf6 Ng1 Qbc3 Rh6+ Rg6 Nh3 Qh1 Ng1 Qh5 Nh3 g3+ Kf1 Bf5 Re5 f2 Be4 g4 Kg2 Qe1 Qdd5 Qec3 Bc2 Q5e3 Qdd3 Qcc5 Kh1 g2+ Kh2 f1Q Qcd5 Nc6 e7 Be4 e8R Ne7 Ra8 Bg7 f8N f3 Ne6 Bf8 Ng7 g1B+ Kh1 Qf5 Nf4 g3 Qdd7 Qh5+ Qh3 Qf5 Qg2 Bf2+ Qg1 g2+ Kh2 Bh4 Qh1 Qh5 Kh3 g1Q+ Ng2 Qb1 Nf4 Qgg5 Rh8 Qgh6 Rh7 Rg1 Rh8 Qe8 Rh7 Bg3+ Kg4 Qh2 Rh4 Qec8+ Kh5 Qch3 Kh6 Nd5 Ba4 Qab6 Qc2 Qhf1 Rg5 Bf5 Nh3 Bb8 Nf4 Ne7 Qe4 Bh7 Re5 Qa6 Rh3 Qbd3 Bc2 Qfg2 Qec4 Qf5 Rh4 Qhh3 Qd3 Qfg4 Rhh5 Be4 Rh4 Nf5+ Kh7 Ne7+ Kh8 Qf5 Rh6+ Qgg6 Qgc4 Qfh5 Qg8
1q2n1b1/RQ4R1/rnBQ3K/n1b1b1n1/p5k1/1qn5/n3PQ1N/4NNNR b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 Kf2 Ke7 b4 Kf6 c4 d5 h4 g4 c5 g5 c6 g3+ Ke1 d3 Kd2 g4 c7 g2 h5 Kg5 b6 g3 h6 d4 h7 a4 b5 f2 b7 f3 f6 Be6 c8N Kg4 b6 Nc6 b8Q Na5 b7 Bd6 f7 Be5 f8R Nf6 Ra3 Bg8 Qe1 Ne8 Ne7 Qc8 Qd6 Qb8 Nh3 g1B Nf5 g2 Nh4 Qc7 Rf7 Qb8 Kd1 d2 Rb3 Qa8 b8Q Qd5 Kc2 d1N Kd2 d3 Rbb7 Nc3 Ke3 d2 Ra7 Qb3 Qb7 Na2+ Ke4 d1N Nd2 Ndc3+ Ke3 Bgh2 Re7 g1N Bg2 f1Q Qf2 Qfb1 Nf1 Bf6 Rc7 Bhe5 Rf7 Be7 Rg7+ Kh5 Ng6 Kg4 Ngf4+ Kf5 Nd3 Q1b2 Qh4 f2 Bc6 Nf3 Ng1 Ng5 Ne1 Qb1 Qa6 Qb8 Qb7 Qb3 Qhd4 Bf8 Q4c5 Kg4 Qcb6 Bd5 Qbc5 Rg8 h8N Be7 Qcb6 Rf8 Ng6 Bg8 Nh4 Rf6 Nhf3 Rg6 Bd5 Re6 Qdd8 Rc6 Qd6 Bf8 Qbc5 Ra6 Bc6 Be7 Qf6 Bf8 Qd5 Ba3 Qdd6 Bc5+ Nd4 Qa8 Qff7 Qb8 Nh2+ Kh4 Qff8 Ne6 Kf3 f1N Qf5 Ne3 Nf1+ Bh2 Qff4+ Kh5 Qg3 Ned5 Qf2 Nb6 Ke3 Nb1+ Ke4 Nbc3+ Kf5 Ng5 Ndf3 Nc7 Kf6 Kg4 Kg6 Ne8 Kh6 Be5 N3h2+
qB4qN/3rQb2/Qq2PN1K/Q2pbB1n/3kq3/8/R2N1qBr/b1q2B2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 a4 b5 axb5 e5 f4 exf4 b4 Nc6 h5 Nce7 Ra6 Ng6 hxg6 f3 Rf6 Bb7 Rf4 gxf4 g5 Bc8 Kd2 Ke7 c4 Kd6 e4 Ke5 b6 d5 c5 a5 g7 h5 b7 f5 b8Q+ Bd6 g6 d3 c6 h4 b5 a4 b6 h3 c7 a3 b7 f2 Qc2 h2 Qa7 a2 b8Q a1B Qb5 f3 Ke3 d2 Qcc4 d1Q Qba5 Nf6 g8N Be6 c8B Qa4 g7 Nh5 Nf6 Bf7 Ne2 Qg8 Nd2 Rb8 Rg1 h1Q Qca6 Rb7 Nf4 Rd7 Rg2 Qb4 Q7c5 Qb6 Rh2 Rh7 Bg2 f1Q Ng6+ Ke6 e5 f2 Bb2 Qc1 Nh8 f1Q Bb7 Qa8 g8B Qfg1+ Kf3 f4 Kg4 f3 Kg5 Rh6 Bh7 f2 Be4 f1Q Bf5+ Ke7 e6 Qff2 Qc7 Be5 Bc6 Rh7 Bb5 Rh6 Qcb7 Kd6 Bc3 Kc5 Bf1+ Qb5 Bb4+ Kd4 Bd6 Qb6 Bb8 Rd8 Qe7 Rd7 Ng4 Rh7 Bh3 Qe4 Bhg2 Ng7 Nf6 Rh4 Rh3 Nh5 Ra3 Rh1 Kh6 Rh2 Bh1 Qgg4 Ra2 Qg8 Bhg2
1N1nRNb1/5R1r/Q4P2/1q1Bp1Qr/Q4q2/1NnkrN2/1nrn1K2/qR6 b - - 0 1 legal: proof: d4 b5 e4 c5 f4 cxd4 a4 f5 axb5 fxe4 g3 Qc7 Ra6 Qb6 Ra1 Qd8 Bd2 h6 f5 e6 Bc1 Bd6 Bg5 Bf4 gxf4 hxg5 c4 Ke7 b4 Kd6 h4 a5 c5+ Kd5 f6 a4 h5 g4 f7 g5 f8N a3 h6 e5 h7 a2 b6 e3 c6 Ke4 b7 d5 f5 g3 c7 e2 b5 g4 b6 g2 Kf2 e1R Ne2 g1R Rh4 d3 Ne6 d2 Qc1 d4 Qc3 d3 Bh3 Qf6 Nc1 Re3 Nd4 Be6 c8R Rg2+ Kf1 d1N Ncb3 d2 Qc6+ Kd3 Re8 g3 Rf4 Nb2 Qa4 d1N N1d2 Ra7 N2f3 Rc2 Bg2 Nc6 b8N Nc3 b7 Nd8 Rb1 a1Q Qa6+ Bc4 Ne6 Qh6 Nf8 Nf6 Bh1 g2+ Kg1 Nfe4 Qa4 Rg8 h8Q Rg5 Qf6 Rh5 Qfa6 Nd2 Kf2 Qb6 f6 Qc6 Rg4 Qb5 Rg7 Bg8 Rf7 Qa3 Nbd7 Qb4 b8Q Qf4 Qbc8 Rc7 Nb8 Ra7 Qg4 Rb7 Rfe7 Rc7 Qg5 Ra7 Re6 Rah7 R6e7 Qf5 Kg3 g1Q+ Bg2 Qh1 Rf7 Qf4+ Kf2 Qd1 Bh3 Qh1 Be6 Qd1 Ra1 Qb1 Bd5 Qa2 Rd1 Qa1 Rb1
1q1R1B2/2r5/1k1rp1q1/rNq1rQ2/2BqN1Q1/1bn1b3/2B2P1K/1b1N2QN b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 g4 b5 axb5 fxe4 b4 h5 Qe2 Nc6 Qd2 Ne5 Qd1 Nf7 Ra6 Nfh6 Rg6 Nf5 gxf5 Rb8 Rg5 Ra8 Rg4 hxg4 c4 d5 h4 Kd7 b6 Kc6 c5 g5 b7 a5 b8Q g3 f6 d3 h5 d2+ Ke2 g4 h6 a4 f7 g2 h7 g3 Qe5 a3 Qh5 a2 Nc3 a1Q Ba3 d4 Qg4 e3 Kf3 d3 Nge2 Bh6 f8Q g1Q Qff5 g2 Kg3 Ra5 b5+ Kb7 c6+ Kb6 c7 Nf6 Kh3 Ne4 Ng3 e2 Bd6 Rg8 h8N e1R Nf7 Be3 Ng5 Rg7 Qc1 Rf7 Nd1 Nc3 N5e4 e6 Bf8 Ba6 c8B Rc7 Bd7 Qb8 Rh2 Qa3 Nh1 Qc5 Kg3 Bb7 Rh8 Bd5 Be8 Ba2 Bg6 Bb1 Be2 Qf1 Kh2 g1R Bg7 Rg3 Rd8 Rg1 Bf8 Rg3 Nb2 d1Q Bh7 d2 Bc4 Qc2 Nd1 Qfd3 Bg6 Qdd4 Bh7 Kb7 b6 Kc6 b7 Kb6 Nb2 Re2 Qg1 d1B Bg6 Qcd3 Bh7 Bb3 Nd1 Qa7 b8N Qa8 Nc6 Qb8 Qgf4 Rd2 Na7 Rg5 Q5g4 Re5 Nb5 Qc2 Neg3 Qg6 Qf6 Qe8 Bc2 Qg6 Qff4 Qd7 Qff5 Rd6 Na3 Qa4 Nb5 Qab4 Ne4 Qa4 Be2 Qad4 Bc4
2nQbq2/bpn1QB1q/6qk/Bq3r1Q/2N2Rn1/2N2b2/3nB1P1/3N2BK b - - 0 1 illegal: No possible last move, all moves rejected
1rRrq1r1/Pq6/q1b1Q3/R3KRqQ/bR6/BQ1pk2B/1Br3nN/2b5 b - - 0 1 legal: proof: d4 f5 b4 c5 e4 cxd4 exf5 a5 g4 axb4 f4 Kf7 f6 Ke6 f7 Kd6 Ba6 Kc7 Bf1 Kc6 g5 Na6 f5 Nc7 Nc3 Nd5 Ne4 Ndf6 gxf6 h6 Nf2 h5 Ng4 hxg4 Kf2 Kc5 Kg3 g5 a4 d5 c4 e5 h4 b5 a5 b3 a6 d3 h5 Kd4 a7 b4 c5 e4 c6 b2 c7 b1R h6 b3 h7 d2 Nf3+ Ke3 Bb2 d4 Ra3 d3 Ra1 Bb7 c8R Rc1 Rh4 Qa5 Ba3 b2 Bd6 b1Q Qb3 d1B Be7 Nh6 Be2 Rb8 Re8 Rc2 Bf1 Bc6 Rd8 Qa6 Qe6 Qbb7 Ba3 Rg8 Bb2 Ba3 Rc8 Rd8 Bc3 Bc1 f8Q Re2 h8Q Bda4 f7 Ra2 f6 Rc2 Bg2 Nf5+ Kh2 g3+ Kh3 Qb1 Kg4 Qbb7 Bh3 g2 Qa3 g1R+ Bg2 Nd6 f8R Nc4 Kf5 g4 f7 g3 Bh3 g2 Qh5 Rd1 Qee7 g1Q Qb3 Qg5+ Ke6 Rg1 Bb2 Qga5 Qd6 Rg8 Nh2 Qg5 Qe5 Nb6 Qf5 Nd5 Ke5 Nf4 Ra3 Ng2 Rg4 Bab5 Ra5 Ba4 Rh4 Kd2 Rf4 e3 Rd4 e2 Rb4 Qh6 Qfe6 Ke3 Re8 e1Q f8B Qe2 Re7 Qg6 Rf7 Qg5+ Rf5 Qe1 Rb6 Qe2 Bfa3 Qe1 Rb4 Qe2 Qhh6 Qh5 Qh7 Qe8 Qh5
3Nr3/1Q3b1b/1Q2R3/Npr3Rb/rR1n1n1r/1Nr1QPR1/2k1B3/2b2K1n b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 b4 g5 b5 g4 b6 g3 Be2 axb6 Bc4 b5 Bf1 b4 h4 Nf6 h5 Kd7 f3 Ke8 Bb2 Rg8 Bd4 Rh8 Ke2 Qd7 Bf2 gxf2 g4 Qf5 g5 Qg6 hxg6 Ng8 d4 Kd7 a4 Kd6 a5 c5 a6 h5 a7 b5 g7 e5 g6 b3 Rh4 b2 Qc1 e3 Na3 b1B Nc2 c4 Bh3 f1B+ Ke1 e4 Bd7 e2 Qe3 c3 Rh1 h4 Bg4 h3 Qf2 h2 Nb4 c2 Be6 Nf6 g8R Nc6 g7 Rh4 Ra6 Nh5 Qe3 c1R+ Kf2 e1R Ne2 Rc4 Nc1 Nf4 Nb3 Rc3 Rg1 Bc4 Rg4 Re2+ Kf1 h1N Bf7 Bf5 Bg6 Re8 a8Q Bd7 Rg3 Bg4 Qb7 Bh5 Rh8 Bc2 g8R Bh6 Bh7 Re5 R8g5 B2d3 Ra4 Rf5 Re8 Ra2+ Qe2 e3 Bg6 Nd8 Nc6 Nde6 Rb4 Ra4 Nca5 Re5 Bf7 Bh7 Bg6 Bg4 Bd3 Bh5 Qf2 e2+ Kg1 Bg8 Qe3 e1R+ Bf1 Re2 Re7 Rec2 Be2 Bd3 Re8 Bdh7 Kf1 Bgf7 Qb8+ Kd7 d6 Rcc5 d5 R2c3 Qa8 Nd4 Re6 Re4 Reg6 Re7 Re6 Re8 Qa6 Kd8 d7 Kc7 d8N Kd7 Qa8 Kc7 d6+ Kb6 Qg1 Re5 Na1 Kc5 d7 Rd5 Qb7 Re5 Rb1 Rf5 N1b3+ Kb4 Qe3 Rfc5 Na1+ Ka3 Rb4 Ka2 N1b3 Kb2 Ndc6 Kb1 d8Q Kc2 Qdb6 Ng2 Rd5 Bg5 Nd8 Bf4 Qe5 Bc1 Qe3 Nf4 Rdg5
rBr3QR/4Rbb1/bPrR2p1/2NQ4/4Kn1B/2Bnn3/n2Qn2k/1B1r4 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ke1 f4 Nc3 Qf6 Ne4 Qf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kf7 c4 Kf6 h4 Ke5 e4 a5 b4 d5 b6 g3+ Ke1 f2+ Kd2 a4 Kd3 g2 c5 f3 c6 a3 h5 a2 b5 g6 c7 Nc6 b7 Nf6 b8B Ba6 h6 Bg7 h7 Rc8 h8B Nh5 Ne2 g1N Nc3 Ne2 Ba3 Kf4 f6 Kg4 Qd2 Kg3 Rd1 a1R f7 Rc1 f8Q Rc2 Bg2 f1B e5 f2 Be4 Bg2 e6 f1N e7 Ne3 Rhe1 Kh2 e8Q Bh3 Bc1 Be6 Na4 Bf7 Qg8 Rc5 Qd7 Rc2 Qb4 Rc4 b6 Nhf4+ Kd2 d3 Nc5 d4 Qd5 Ne5 Ba3 Rd8 c8R Rd6 Re8 Re6 Bb2 Rc6 Bc3 Rc8 Nb7 R4c6 Nc5 Nc2 Qa5 Nb4 Re7 Na2 Rg1 Bf8 Bf6 Bh6 Bh4 Bg7 Ke1 d2+ Kf2 Ned3+ Kf3 Nf2 Bb1 Nd3 Rc1 d1N Ke4 Ne3 Rcd1 Nb2 Rg5 d3 Rh5 d2 Rh8 Nd3 Rf1 d1R Qb4 Rc1 Rd1 Ne5 Rd4 Ned3 Qb2 Rd1 Qd2 Bf8 Qe6 Bh6 Rd6 Bg7 Qd5
b1n1N3/3pNQK1/2RnR3/R4NQr/3nQ3/1n1P1qB1/2n1nR1n/k1qq4 b - - 0 1 legal: proof: c4 b5 f4 e5 b4 exf4 Qa4 a5 Qb3 Ra6 Qd1 Rb6 Nc3 axb4 Nb1 b3 Nf3 b4 Ng1 Rb5 cxb5 Qe7 Nf3 Qg5 Ng1 Qd8 g3 f5 Ba3 h5 Bc1 f3 Kf2 Bd6 Ke3 f2 Bh3 f4+ Kd3 f3 Bg4 Bf4 gxf4 hxg4 Ke4 Kf7 Kf5 f1N e4 c5 h4 g5 a4 g3 e5 g4 a5 f2 b6 c4 b7 g2 h5 c3 d3 g3 h6 b2 h7 c2 a6 b3 a7 Qf8 a8Q Nc6 b8R Nh2 Qd2 f1Q Qa7 Qd1 Qa2 Bb7 Rc8 Ba8 Nc3 b1N Nge2 g1N Nd4 g2 Nd5 Nc3 Ne7 Nge2 Re1 Nb5 e6+ Kg7+ Kg5 b2 f5 b1N Kh5 Kf6 Qg5+ Ke5 Kg6 Na5 Rc6 g1N Qc4 Nb3 Ra5 Ngf3 Bd2 Qb8 Kg7 c1Q Be3 Qd8 Bf2 Na3 Bh4 Qc7 Bg3+ Qf4 Rf1 Nc2 Rf2 Qc8 Rd6 Qc5 Rc6 Nd6 Qb4 Nf6 Qc4 Nd5 Qa4 Nb6 Qc4 Rf8 h8R Nbc8 Rh6 Rh8 Rg6 Rh5 f6+ Nf5+ Kg8 Qd5 f7 Qc5 f8Q Qd5 Qh4 Nfd6 Ndf5 Nfd4 Qg5 Qc5 Qf7 Qd5 Bh4 Qc5 Kg7 Qf3 Nd5 Qa3 e7 Qac1 e8N N4b5 Qcg4 Nf4 Ng3+ Kd4 Q4f5 Ne2 Q5e6 Qfe3 Ne7 Qf3 Rb6 Kc3 Rc6+ Kb2 Ngf5 N5d4 Qe4 Kb1 Bg3 Kb2 Re6 Kb1 Rae5 Ka1 Ra5+
2n3BN/rq4Qb/R1N4K/1pBpQNr1/1N2Pnr1/2b4B/b2n1qQ1/5k2 b - - 0 1 illegal: No possible last move, all moves rejected
1br1qnQ1/1bNN3q/1Qp1q3/K1R1NrrB/BQ1kn2N/B7/1P1p3b/8 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 d4 c5 c4 cxd4 c5 Ba6 Qd2 Bb7 Qd1 Bc8 c6 Nf6 c7 Ng8 Ra6 Bg7 Re6 Bf8 Rc6 dxc6 Kd2 Kd7 f4 Kd6 g4 Kc5 b6 e5 f6 h5 f7 a5 g5 h3 f5 h4 g6 a4 g7 e4 b7 e3+ Kd3 a3 f6 e2 Qa4 e1B Nd2 a2 Ndf3 a1Q Be2 h2 Be3 h3 Bd1 Ra5 Nh4 Bg3 Ngf3 Qe8 Ne5 Bd6 f8N Nd7 b8Q Qa2 f7 Ngf6 g8Q Bb7 c8B Ne4 Ne6+ Kd5 Rg1 h1Q f8N h2 Qb4 Rh5 Rf1 Rf5 Ba4 Bc7 Qa7 Bb8 Rc1 Bf4 Rc2 Qhb1 Bf2 h1R Qab6 Bh2 Be3 Re1 Bg5 Ra8 Be7 Rg1 Bc5 Rgg5 Be7 Ndf6 Nfd7 Nh7 Bd6 Nf8 Be7 Ng3 Kd2 Ke4 Nc7 Qe6 Rc5 Qh1 Kc2 Ke3 Bd6 d3+ Kc3 d2 Qa3 Qh6 Kb4+ Kd4 Qab3 Ne4 Qa3 Ba7 Ka5 Qh7 Qab3 Qf1 Q3b4+ Qc4 Nf6 Rb8 Be6 Rd8 Bf7 Bb8 Nfd7 Rc8 Bh5 Qe6 Q4b5 Qe8 Be7 Nf2 Rd5+ Ke4 Ba3 Qe2 Rc5 Kd4 Neg6 Q2e6 Nge5 Ne4 Qb4+
R2R4/b2k3q/qP3q1R/1p1n1b2/2nr1r2/N1Np1Q2/1r1RQ2B/b1N1QK2 b - - 0 1 legal: proof: b4 c5 g4 f5 d4 cxd4 e4 h5 gxh5 Nh6 exf5 Ng8 b5 Na6 a4 Nb8 a5 Nc6 a6 bxa6 b6 Nb8 Bb5 axb5 c4 g5 f4 d5 h4 e5 h6 a5 h7 e4 h5 e3 h6 d3 c5 d2+ Ke2 a4 f6 g4 f7+ Kd7 f5 d4 f6 g3 Kf1 a3 Nc3 a2 Rh5 Bd6 f8Q Nc6 f7 Ne5 Rb1 a1B Rb2 Ra2 Nge2 Nc4 Qe1 d1R Rd2 Ne7 Rd5 Rg8 h8R Rg4 h7 Rb2 Qg7 d3 f8Q Rd4 Qf3 Qf8 Rh5 Bb8 Rh6 Ba7 Qe5 Qf6 Qe4 Nd5 c6+ Kd6 c7 Bf5 c8N+ Kd7 Nd6 g2+ Kg1 Nc7 Ra8 Nd5 Ng3 e2 h8R Rb4 Ba3 Rdb1 Kf2 R1b2 Rhf8 Ne5 Nc4 Ra4 Be7 Rab4 Na3 Nc4 Bd6 Ra4 Qf1 g1Q+ Ke1 Qh2 Rfd8+ Kc6 Qg1 Qh5 Kf2 e1Q+ Kg2 Qhf7 Nge2 Qh7 Bh2 Qb1 Qh1 Qa2 Nc1 Rab4 Qee2 Ra4 Rdb8 Kd7 Qhe1 Rf4 Kf1 Rab4 Nab1 Qa6 Rf8 Na3 Rh8 Rbd4 Rhb8 Nc4 Na3 Nb4 Re8 Nd5 Red8+
2Rn4/2N1q1qN/1pn3Nq/k2bQrPb/1Rr2rNQ/8/b5pK/1Q1B3R b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 cxd5 f6 d6 fxg5 Bh3 g4 Bg2 Qf6 Bf1 Qd8 h4 g5 d4 g3 d5 g4 Be3 Be7 Bd4 Bg5 hxg5 exd4 f4 Kd7 a4 c5 e4 h5 a5 b6 e5 c4 a6 h4 f5 d3 a7 c3 f6 c2 f7 c1R f8Q b3 Qf2 b2 Be2 h3 Kf1 d2 Nc3 b1B Nf3 h2 Kg2 Rh4 Ra4 Nc6 Rb4 Nge7 Ne4 Bb7 e6+ Kc8 Nf6 Rc4 Qfe1 Ba2 Qb1 d1B Ne5 Qc7 Ng6 Nd8 Qf2 Nec6 Nh7 Qg7 e7 Rb8 e8Q Ba8 d7+ Kb7 d6 Ka6 Re1 Ka5 Rh1 Rf4 Qd4 Rc8 Qee3 Rf5 Qdf4 Bb7 a8N Qe7 Nc7 Qg7 Kf1 g2+ Kf2 g3+ Kf3 g1Q Qe5+ Qc5 Kg2 Bdb3 Bd1 Bf7 Qf2 Re4 Kh3 g2 Qh4 Ref4 Kg3 Ne6 d8N Be8 Nf7 Ned8 d7 Ba8 Re1 h1Q Nh6 Bef7 Ng4 Be8 Ngf8 Bh5 Ng6 Bb7 Qf6 Qce7 Qe5+ Bd5 Rf1 Ba6 Re1 Bc4 Rg1 Ba2 Re1 Qf1 Kh2 Qf2 Rf1 Qh6 Rh1 Qd4 Qd6 Qdg7 Qe5 Na7 Ne6 Rcc4 Nc7 Ne6 d8R Nc6 Rb8 Ned8 Rc8
1B1Q1N1r/pnQ3k1/R1q2r1p/nRNQrP2/6b1/5Nb1/q1n2N1R/5b1K b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b4 c6 b6 Nh6 b7 Ng8 b5 Qc7 b6 Qd8 Bb5 cxb5 Kf1 Kf7 d4 e5 f4 h3 g4 e3 d6 e4 g5 b4 d5 h2 Kg2 h6 g6+ Kg7 d7 e2 d6 e1R Nd2 e3 Qc2 b3 Ra6 e2 Ne4 b2 Qc7 b1Q Nf2 Nc6 b8R Qf6 d8Q+ Nge7 b7 Qa2 d7 Na5 Nf3 Nec6 f5 Bd6 Bg5 Bg3 Bf4 Qc3 Rg1 Rf8 Kh1 Rf6 Bd6 Rb1 Bf4 e1N Rg2 Rb5 Bd6 Nc2 Be5 Qe3 Bd6 Qe8 Bf4 Kh8 g7+ Kh7 g8N Re5 Ne7 Kg7 Ng6 Qee6 Nf8 Qec4 Qe8 Nd8 Qe6 Qc6 Qed6 Nf7 Qd5 Nd6 d8Q+ Bd7 Qb6 Be8 Qbc5 Bh5 Qcb6 Bg4 Qbc7+ Re7 Rc8 Rb8 Be5 Ra8 b8N Ndb7 Nbd7 Re8 Bf4 Re5 Rb8 Nd6 Rb5 Ndb7 Rg1 Rb8 Rgb1 Rc8 R1b2 Rb8 Kg2 h1B+ Kg1 Bg2 Nc5+ Re7 Be5 Bf1 Kh1 Ra8 Qb6 Rc8 Bb8 Re5 Nh3 Na1 Rh2 Nc2 Nf2 Qc7 Nfd7 Qc6 Qdc7 Rh8 Nf8+ Re7 Qcd8 Re5 Qbc7+
R5Qr/2Nn1br1/n2R4/5rpk/3RN1rB/1bKP2p1/r4R2/N1nQ1q1Q b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 Qa4 h5 Kd1 f5 Bg2 f4 Bh3 f2 Kc2 f3 Bg4 Bd6 Qb3 Bf4 gxf4 hxg4 Kc3 Bd7 Qd1 Be6 Kc2 Bc8 e4 Kf7 b4 Kg6 h4 f1B d3 a5 f5+ Kh5 f6 c5 e5 c3 e6 g6 e7 c4 e8N f2 f7 a4 f8R a3 b6 a2 b5 Rh7 b7 Be2 b6 f1R Na3 g3 Nf3 Rf2 Nc7 Be6 Nd2 Rg7 Ne4 Qf6 Bg5 Na6 b8R Bf7 b7 Rf5 Rbd8 Bf3 b8Q Bg4 Rb1 a1R Rb2 Ra2 Rd4 Bf3 Rf1 Be2 Rf2 Bf3 Kc1 c2 Kd2 c1R Nc2 Rca1 Rb6 c3+ Ke1 Rb1 Rbd6 Rb4 Na1 c2 Kd2 c1N+ Kc3 Bb3 Qd8 Qf7 Be7 Nf6 Qb8 Nd7 Rh8+ Kg4 h5 Rba4 h6 Kh5 Bh4 g5 h7 Qf6 Rd8 Bf7 Qh1 Bd1 Qb1 Bdb3 Rg8 Qe5 Qc2 Qf4 Qcd1+ Qf3 Re2 Qf1 h8Q+ Rh7 Re8 Rd8 Qg8 Rg7 Re5 Rf8 Re8 Rb4 Ra8 Rfb8 Qe8 Rc8 Qe6 Rh8 Rf2+ Rf3 Nc5 Bg8 R4d5 Rg4 Ne4 Rf5 Qe8+ Bf7 Rd4 Nb6 Qc8 Nd7 Qg8
B1b3Nk/1n1rPKnq/1rp4b/4Bb1r/2Q5/1B2N1r1/1Bp1QR2/1n2QN2 b - - 0 1 legal: proof: a4 e5 c4 h5 g4 hxg4 f4 b5 fxe5 a6 d4 Bb7 e4 Ke7 b4 Bc8 d5 Ra7 e6 Kf6 e5+ Kg6 Ra3 Rb7 Rg3 Rb6 e7 Re6 dxe6 bxc4 b5 a5 Rb3 Nc6 Rb2 Nb8 Rb4 axb4 Kf2 Kh7 Ke3 g5 Kd4 f5 Kd5 f4 e8Q c3 h4 g3 e7 g4 e6 c6+ Ke5 d5 b6 g2 a5 f3 a6 d4 a7 c2 a8B d3 h5 f2 h6 g3 b7 d2 Ne2 g1R Nbc3 g2 Ba3 b3 Qe1 d1R Bb2 Na6 b8B Nf6 Ng3 Nc5 Rh2 Qd7 Bc4 f1B Nd5 Nb7 Ne3 Bd3 Ngf1 Bf5 Qe2 Kg8 h7+ Kg7 Bd6 Nh5 Bc7 Rh1 Qe1 g1R Rf2 Rg8 h8N Rg3 Ng6 Kh7 Qf7+ Ng7 Kf6 Rh5 e8Q Qd3 Ne7 Kh8 Bb8 Qe4 B8e5 Rd7 Bbd4 b2 Bb3 b1N Bb2 Bg4 Qe2 Qh7 Qe1 Nf5 Qe2 Bh6 Qe1 Rf8 Ng8 Ng7 e7 Bf5 Qd8 Rd1 Qdd2 Rd8 Qe6 Rd7 Qde2 R1d5 Qc4 Rb5 Kf7 Rb4 Qce2 Rb6 Q6c4
1r4QQ/NB1p1b1P/4BRrp/2NK2n1/3N2qN/B5nb/2r1b3/Qbk3n1 b - - 0 1 illegal: No proof kernel
2B2KQ1/1bP2bn1/2nQr3/B5p1/N1Nn2N1/5b1r/BrQbqp2/2B1R1k1 b - - 0 1 illegal: No possible last move, all moves rejected
N1Q1k3/2bq1r2/RQB4R/q1N1Rp2/3pq2q/2Q2nr1/qN2P3/n1RK3b b - - 0 1 illegal: No possible last move
2q1r3/2n4N/R1RqkbB1/5n1B/Q1nR3n/2rp1rRQ/4P1pK/1bQ3B1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h5 Nc3 Ba3 Ne4 Bf8 Nf2 f5 gxf5 Nh6 Ng4 hxg4 Ra3 Ng8 Ra5 Rh7 Ra1 Rh8 Kf2 Kf7 Kg2 g5 b4 d5 c4 a5 h4 d3 h5 g3 h6 g4 c5 a4 f6 d2 h7 a3 b6 d4 b7 d3 c6 a2 b5 Ba3 b6 Be7 c7 Na6 b8R Nh6 b7 Nf5 Nh3 Re8 h8Q Ke6 f7 Qd6 f8Q Bf6 Qa4 d1N Qfh6 Nb2 Rg1 Nc4 Be3 f3+ Kh1 f2 Bg2 f1R Be4 Bd7 Rd8 Rc8 b8R Rf3 Rb6 Bc6 Qf4 g2+ Kh2 Bd5 Rac1 a1Q Ng5+ Ke7 Rc2 Qc3 Nh7 Ke6 Ra2 Qc1 Rc6 g3+ Kh3 Ne7 Bg6 Nf5 Bc5 Qc3 Qc1 Qc2 Rh1 g1N+ Kg2 Rb8 Rh3 Rb3 Ra1 Rc3 c8B+ Ke5 Kh1 g2+ Kh2 Nc7 Rg3 Bg8 Bb7 Ke6 Bd4 Qb1 Ba8 Qb7 Ra3 Qc8 Ba7 Nh3 Bg1 Nf4 Bh5 Ng6 Bb7 Ke7 Ra1 Ngh4 Ba8 Qc5 Rd4 Qd6 Qg7+ Bf7 Rc5 Ne5 Qa2 Ne3 Qg4 Bb3 Qh3 N5c4 Be4 Bc2 Beg6 Bb1 Rc6 Nef5 Qac2 Kd7 Raa6 Ke6 Qa4
3Bn3/k3bB2/nQ1n1rqr/K1Rp2P1/2Br3p/nR1Bb1Q1/5RNQ/1q6 b - - 0 1 legal: proof: h4 g5 e4 gxh4 d4 f5 a3 c5 e5 b5 e6 f4 Ra2 d6 Nc3 Bd7 a4 bxa4 exd7+ Kf7 dxc5 e5 Ra1 e4 Nd5 Ke6 Ne3 fxe3 Ra2 Kf6 Ra1 Ke7 c4 h5 b4 a5 g4 e2 Kd2 e1R Kc3 e3 f4 h3 f5 h4 f6+ Ke6 c6 h2 f7 e2 b5 a3 c7 a4 Kb4 d5+ c5 a2 c8B a3 b6 Qe8 b7 Rh6 Nf3 Nf6 Qd3 Na6+ Ka5 Rd1 b8Q e1N c6 Be7 f8R Nc2 c7 Kd6 d8Q+ Kc5 Rb1 a1B Rb3 a2 Be6 Qg6 c8B Bd4 Bg5 Ne8 Ne1 Be3 Rf2 Na3 Bf7 a1Q Bf5 Qb1 Ng2 Ra7 Rg1 h1N Qh2 Ng3 Bf6 Rd7 g5 Ne4 Be2 Rd2 Rgf1 Rd6 Rc1+ Rc2 Qb8 Rc4 Qc3 Rc6 Qbg3 Rb6 Qb2 N4d6 Bfd3 Kc6 Rcc3 Kb7 Rc2 Re4 Rc5 Ka7 Bc4 Rd4 Bed3 Bf8 Bd8 Be7 Qf3 Nc8 Qfg3 Rf6 Qc3 Ncd6 Qb4 Nc8 Qb5 Ncd6 Qb6+
1NnQ1R2/3b2RB/1Q5N/1PQp1q1r/1qNpnknR/5rb1/7r/1n3QK1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Kf2 d5 h4 Kd7 b4 Kd6 c4 Ke5 f6 a5 h5 a4 g7 a3 c5 a2 f7 g4 h6 g3+ Kg2 Ra3 c6 Bd7 c7 Nf6 c8R Nc6 g8N Ng4 h7 f3+ Kh3 g2 b6 f2+ Nc3 Na7 b7 Kf4 b8Q+ e5 b5 Qf6 Bd3 f1N Nb1 Qf5 Nh6 Bd6 f8Q e4 Nd2 e3 Qb6 e2 Ngf3 g1R Ne5 e1Q Ndc4 Rg2 Nc6 Qb4 Nb8 Nd2 Qf1+ Rf2 Re1 a1N Re7 Nab3 Rg7 Nb1 Rd8 Be5 Qfc5 Nc8 Rf8 N3d2 Rh2 Rf3+ Kg2 Ra2 Rh4 Ne4+ Kg1 Rh2 Bc2 Rg8 h8Q Bd6 Rgf7 Rg5 Qf6 Bc7 Qd8 Rh5 Re7 Kg5 Bd3 Bg3 Rg7+ Kf4 Qh3 Nf2 Be2 Qf6 Bd3 Qf7 Bf5 Ne4 Bh7 Qf5 Qf1
BqQ5/B1kB2rR/n2r2RK/1pqR1bpP/1rN1R1b1/1n1Q1r2/1q1Q4/8 b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qc2 f3 Kd1 f2 Qb3 Kd7 Kc2 Ra6 Kb2 Ra3 Qd1 Ra8 Kc2 Ke8 Nf3 h5 Na3 f5 Ng1 f4 Nc4 f3 Ne5 Bd6 Ng4 Bf4 gxf4 hxg4 Kd3 Kd7 Ke3 b5 d4 c5 a4 g3 h4 g2 f5 b3 Kf4 g6 e4 b2 d6 b1Q e5 c4 e6+ Kc6 e7 c3 Kg5 c2 f6 Qa5 e8R Kb6 d5 Rh7 f7 Nc6 f8Q Ra6 d7 Rg7 d8R Qb2 d6 Nb4 d7 Nh6 Re4 Kc7 Qd2 Qb6 a5 Nf5 h5 Nd4 Kh6 Qd6 Ra3 Rb6 a6 Nb3 a7 Na6 a8B Qg3 Rhh4 Rd6 Rhg4 Qge5 Bc4 f1R Be6 f2 Nf3 g1R Ra5 Qc5 Ne5 Rh1 Bf5 Rh4 Nc4 Qb6 Qd3 Qb8 Be3 c1Q Qd2 Qcc3 Ba7 Qb4 Rg3 Qc5 Bh3 Rg4 Qf3 Rf4 Qfd3 Rb1 Rg5 f1B Rd5 Be2 Rh8 Rf2 Rh7 Bg4 Ra4 g5+ Re6 Rf3 Rg6 Bb7 d8Q+ Kc6 Qe8+ Kc7 Qf8 Bbc8 Rb4 Bgf5 Bg4 Be4 Bd7 Bf5 Na5 Bg4 Re4 Bf5 Nc4 Bg4 Be8 Bcf5 Bd7 Qc1 Qe7 Na5 Qe8 Rb4 Qf8 Nb3 Qh8 Qb2 Qc8+
2Q1q3/KnQ5/1p2QRR1/1r1B4/N2rb1nk/p1qnP1rR/n2N4/1N2Q2b b - - 0 1 illegal: No possible last move, all moves rejected
kbN4q/r1q1bQN1/pR3r1R/Q1R3Pp/KQ3n2/2Nb1nB1/1r6/Q4r2 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 d5 h4 gxh4 cxd5 exf4 e3 f3 Be2 fxe2 Kf2 Qe7 Qe1 Qd6 Qd1 Qd8 Ke1 Kd7 d4 f5 Kd2 e1R Kc3 c5 Kb3 Kc7 g4 Kb7 b6 a6 d6 h3 g5 f4 d7 h6 d5 c4+ Ka4 h2 b4 c3 b5 f3 d6 f2 e4 f1Q e5 c2 e6 Qc7 d8Q Qc5 e7 Qh3 e8Q Nd7 Nd2 Re7 Nc4 Ngf6 Qf7 Re4 Bf4 c1B Bg3 Be7 Ne2 Ra7 Nc3 Ne5 d7 Bf4 Rc1 Re2 Nd6+ Ka8 Qg1 Nh5 b7+ Kb8 Qd4 Rb2 Qa5 Qc7 d8N Bf5 Ne6 Bd3 Nc8 Nf3 Ng7 Rd8 Qdb4 Rd6 Qa3 Be5 Qa1 Nf4 Rc2 Qf5 Rcc1 Qh7 Rc2 Qh8 Rcc1 Qb6 Rc2 Rf6 Rcc1 Kc7 b8R Kd7 Nd1 Qc5 b6 Kc6 b7 B5d6 Re1 h1R Re2 Re1 Rh2 Rf1 Rc4 Be5 Nc3 Bc7 Ra8 Bcd6 b8Q Be5 Qd6+ Kb7 Qd4 Qd6 Rc5 Qb8 Nb6 Bc7 Qdb4 Qbd8 Rc8 Bb8 R8c6 Qc7 Nc8+ Ka8 Rb6 Rd6 Re2 h5 Re6 Rc6 Rg6 Rf6 Rh6
Qkn1QQ2/1n1P2b1/2rRrq1q/7R/b1n3p1/B1BnBp2/1b3Q2/3RN2K b - - 0 1 legal: proof: g4 g5 a4 h5 f4 d5 c4 b5 axb5 gxf4 Bg2 e6 g5 e5 Bf3 Bh3 cxd5 Bc8 Na3 e4 Nc2 exf3 Ne3 Bb4 Ng4 hxg4 Qa4 Ba3 Qd1 Bf8 Kf1 Kd7 b4 c5 d4 Kc7 h4 a5 e4 f5 b6+ Kb7 d6 a4 b5 c4 d7 a3 g6 c3 g7 f2 Kg2 f1N e5 c2 e6 a2 d5 Ra4 h5 Ba3 e7 Rc4 e8Q Nc6 d6 Qh4 d8R Na5 h6 Nd2 h7 Rc6 Qde2 Kb8 b7 Ndc4 Qf2 Qh6 Be3 c1N Rh5 f3+ Kh1 Ne7 g8Q f4 Qgf8 Nd3 Rd1 a1B Rd7 Rg8 h8B Rg6 Bc3 Re6 Rd8 B1b2 Rd7 Bc5 Rd8 Bd4 Rd7 Ka7 b8B+ Ka8 b6 Bg7 Rd8 Bd7 Ba7+ Nc8 Bc5 Rc7 Ba3 Ba4 Rd7 Kb7 Rd8 Ka6 b7 Rc6 b8Q Nb7 Qd4 f2 Qa8 f1Q Qf2 Qe2 Nf3 Qe5 Ne1 f3 Rd7 Qef6 Re7 Re5 d7 Re3 Re4 Re2 Rd4 Ree6 Bb8+ Kb6 Ba7+ Kc7 B7c5 Re2 Rd6 Re6 Qa6 Kb8 Be3 Nb4 Qa5 Nd3 Qa8+
k1QB4/2Bp2n1/1R1B1qQn/KQP4N/1pr4q/n2bRb2/1b4BR/1b4r1 b - - 0 1 legal: proof: e4 c5 f4 a5 b4 axb4 d4 f5 exf5 cxd4 g4 h5 g5 g6 Nc3 Ra3 Nd5 Ra8 Ne3 Bg7 fxg6 Bh6 f5 Bf8 Ng4 hxg4 Kd2 b5 a4 e5 c4 d3 h4 e4 f6 b3 Kc3 d2 h5 e3 a5 e2 c5 e1N Kb4 g3 a6 g2 g7 b2 f7+ Ke7 g6 b1B h6 Ba2 h7 Nh6 g8Q Bb1 a7 Ba6 Ra3 Bg7 Ne2 g1Q Qa4 d1B Bf4 Qg4 Ng3 Bf3 Nh5 Qh4 Bg2 Bb2 f8B+ Ke8 g7 Qdf6 Ka5 Kd8 Rh2 Kc8 B4d6 Kb7 Bfe7 b4 Bd8 Nc2 Re3 Na3 Qe8 Bc4 g8Q Bcd3 Qeg6 Na6 Bb8 Nc7 Qb5+ Kc8 Qf8 Ne6 Bd6 Rb8 a8R Ng7 Ra6 Rb6 Qg8 Kb7 Q8e8 Rf8 h8B Rf7 Qg8 Re7 Qf8 Re4 Qfe8 Ne6 Bg7 Rc4 Bgf8 Ng7 Bb8 Nf7 Bfd6 Nh6 Qa4 Rc6 Rb6+ Ka8 Qb5 Rc8 Bd8c7 Rd8 Qh8 Rf8 Qg8 Rf7 Qc8 Re7 Bd8 Re5 Bf1 Rg5 Bh3 Rg1 Bf1 Rd4 Bg2 Rc4 Bbc7+
1b5q/2pb4/pr2P2N/rn1r1NQq/k3bQ2/2QQ1RRn/5BrN/3R1K2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 g5 d4 f5 e4 a6 b6 g4 d6 Kc6 b5+ Kd7 d5 f4 b7 f3 b6 Qg5 e5 Qh5 Qd3 Rh6 Nc3 Nc6 b8R Nf6 b7 Nh7 Nce2 Nd4 Be3 Ng5 Rd1 Nb5 Bf2 Nh3 Nd4 Rg6 Qc3 Bh6 Qd3 Be3 Nf5 Ba7 Qc3 Qh8 h5 Re6 h6 Rf6 Bc5 f2+ Ke2 Rg6 Nf3 g1R h7 g2 Nh2 f1B+ Ke1 g3 Bf2 Rh6 Rd3 Rh5 Rf3 Bd3+ Nf1 Qf6 h8N Be4 Nf7 Qh8 N7h6 Rg5 Ke2 Rh5 Nh2 Rb1 Rf1 g1Q Rd1 g2 Rg3 Qh1 Rf3 Kd8 d7 g1R e6 Rg2 Nd6 Ke7 Ndf5+ Kf8 d6 Ra1 Rg3 Ra5 Ng7 Rd5 Ngf5 Qf6 Rf3 Qg6 d8Q+ Qe8 Qc1 Bd7 Qdg5 Qd8 Rc8 Rb8 Qcf4 Qe8 Rd4 Qa1 Rd1 Qh8 Rd8 Bc6 Rd7 Qh5 Rg7 Bd7 Rg6 Rd8 b8Q Ke8 Qa8 Rb8 Qc6 Rb6 Kf1 Bb8 Qc3 Kf8 Rf6+ Ke8 Re3 Kd8 Rg6+ Kc8 Rf3 Kb7 Rg8 Be8 d7 Ka7 d8Q Bd7 Qcc1 Kb7 Qce3 Kc6 Qc3+ Rc5 Qdf6 Nd6 Qfd4 Kb5 Qgg3 Rd5 Qdd3+ Ka4 Qgh4 Nb5 Rgg3 Qh7 Qhf6 Qh8 Q6g5
1Q2Kn1q/pbq1b1Q1/N6p/1RNnPqq1/3nBk2/B7/B7/r1r1B1QN b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 cxd5 e5 h4 gxh4 Ra3 exf4 Rb3 Qc7 axb5 Kd7 b6 Qd8 b5 Ke8 Rb4 cxb4 Kf2 Kd7 Kf3 Kd6 Ke4 b3 g4 f3 d4 h6 b7 b2 b6 h3 g5 f6 g6 f2 g7 h2 Bg2 f1N Nc3 Nc6 b8Q+ Qc7 b7 Ne5 Nh3 Nf7 Na4 Ne5 Nf2 Nc6 Nc5 Ne3 Qg1 Nge7 g8B b1Q+ Kf4 f5 Ba3 Qb3 Be4 Qb2 Qg7 Qa1 Rb1 h1Q Rb5 Qh5 Nh1 Rh7 Qg1 Rf7 Qg7 Ne5 Qg1 N7c6 Qg7 Nd7 Qg1 Ke7+ d6+ Kf6 d5 Rg7 Bf7 Be7 Be6 Nf8 Bf7 Qb6 d7 Qc7+ d6 Nd4 Ba2 Rf7 d8Q Nd5+ Kg3 Kg5 Qd7 Qg6 e3 f4+ Kh3+ Kf6 Kh4 f3 Qdg4 f2 d7 f1Q d8B Qg8 Kh5 Ke5 Qg7+ Qf6 Bf3 Qc1 e4 Kf4 e5 Qh8 Be4 Qe6 Bb4 Rf6 Be1 Qed7 Bf2 Ra6 Be1 Qcd6 Bda5 Q6c7 Bab4 Qe6 Bab1 Ra1 Ba2 Bd7 Ba3 Bc6 Qd8 Qec8 b8N Bb7 Nba6 Q8d7 Qe8 Rc8 Qd8 Nh7 Kg6 Nf8+ Kf7 Qf5+ Ke8 Qe3 Ba5 Qg3 Bc3 Qgg5 Be1 Qd6 Nd7 Rcc1 Ndc5 Qc7 Qb8
3QQ3/pB3pK1/1nn4r/Bnq1rNnR/6n1/1N2B3/QPn3N1/1Nk1b1b1 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 f4 exf4 h4 cxd4 g4 Qe7 h5 Kd8 Ra6 Ke8 Rf6 Bb7 Rg6 Qd8 h6 Be4 Rf6 Bg6 Ra6 Bh5 Rg6 hxg6 gxh5 Be7 Qd2 Bd6 Qd1 Bf8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 d5 e4 d3 c4 d2 c5 d4 b6 d3 h7 f3 c6 f2 h6 Qc7+ Kd4 Kf4 b7 g5 e5 g4 e6 g5 e7 g3 e8N g4 Qe2 g2 Nc3 g3 Rh3 Bb4 Qe6 Nd7 b8B Nb6 Nf3 g1B Nd6 g2 Qa2 Ne7 Nf5 Ba5 Ne3 d1N Rh5 d2 Ba6 f1N Nb1 Nf2 Bb7 d1N Nfd2 Nc3 Nf5 Re8 h8Q Ne3 h7 Nfg4 Qf6 Bb4 h8N Ba5 Qfe6 Qd6+ Qed5 Qc7 Qd8 Nb5+ Kd3 Qe5 c7 Nc6 c8Q Nc2 Bc7 Re6 Qe8 Rh6 Qcd8 Rb8 Bd6 Bc3 Bb4 Qc5 Ba5 Ra8 Nf1+ Kf3 Be3 Be1 Ng6 Rc8 Nf4 Rc7 N1g3 Re7 Ne4 Re5 Qee6 Bh2 Qee8 g1N Ng2 Nh3 Bg5 Bg1 Ned2+ Kf2 Bf4 Rd5+ Ke4 Ke2 Bg5 Kd1 Be3 Nhf2+ Kf4 Re5 Kg5 Kc1 Rh1 Rd6 Kh5 Nh3 Rh2 Nf6+ Kh6 Ng4+ Kg7 Ng5 Rh5 Rh6 Nb3#
nN1bb1N1/4Q1Q1/1BR1n3/2nr2Q1/1Nbr1P1R/p1b3K1/1R2kpN1/2q3n1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 f5 h4 gxh4 e3 Nc6 Be2 Nb8 e4 fxe4 Bf3 exf3 axb5 Bg4 Rh3 Bf5 Rh1 Bc8 Kf2 Kf7 b4 Kf6 g4 h5 d4 e5 d6 c5 d5 a5 b6 e4 b7 h3 g5+ Kf5 b5 Kg4 d7 e3+ Ke1 a4 g6 a3 g7 h2 d6 h4 b6 c4 Nh3 c3 Qd4 e2 Kf2 e1B+ Ke3 c2 Rf1 h1N Qa4 f2 Ke2 Ra5 Qe4 Rd5 Qe5 Nc6 b8Q Nf6 g8N Nd4+ Ke3 Be7 b7 Ne8 Nc3 Ne6 Ra2 N8c7 Qa7 Na8 b8N Ba6 Ng5 h3 Qg7 h2 Rb2 Ng3 Na2 h1B Nb4 Qc8 d8R Bc3 d7 Bc4 Nf3+ Bg5 Qe7 Ne4 Nh4 N4c5 Ng2 Rh5 Bd2 Rd4 Rc1 Bf6 Rf8 Rhd5 d8Q Bg5 Rf6 Bh4 Rd1 c1N Qg7+ Bg5 Qae7 Ne2 Rc1 Ng1 Rh6 Qc6 Rh4+ Kg3 Ne1 Be4 Ng2 Bg6 Rcc2 Qa4 Rc1 Qd1 Rcc2 Qc1 Qa5 Nh3 Qb5 Be8 Qa5 Kh2 Kf3 Kg1 Be3 Kf1 Kg4 Ng1 Kg3 Bf6 Qad8 Be5 Qeg5 Bc7 Qdd7 Bd8 Qde7 Rd2 Bd4 Ke2 Be3 Na6 Ba7 Nc5 Bb6 Bb3 Nd3 Bd4 Qgf8 Na6 Rc7 Bc4 Qeg7 Nac5 Rc6 B4f6 Nb4 Bc3 Nc2 Rd1 Qfe7 R1d4 Nb4+
2Q1Br1q/N2NRrrn/B1P1b3/2K1b1rp/5bb1/2kpQQ2/5n2/1BN2B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 cxd4 fxe5 Ba3 Bd2 Bc5 Bc1 Bf8 h4 Na6 b4 Bd6 g5 Nc7 g6 Ne7 Bh6 Ng8 Ra3 Be7 Rg3 Na6 Rg4 hxg4 h5 Nb8 Bf4 Nc6 h6 Bf8 h7 Nb8 Bh6 gxh6 Kf2 Ke7 e4 Ke6 c4 d5 g7 a5 c5 f5 c6 h5 b6 a4 b5 f4 b7 g3+ Ke2 d3+ Kf3 d4 b6 d2 Ne2 a3 Nbc3 a2 Nb5 a1B Na7 g2 Nc1 Nd7 b8Q g1R b7 Ngf6 Kf2 Rg8 h8Q f3 Qh6 Qe8 Qe3 Nc5 Rh4 Bd7 Qc8 Nh7 b8N Bd6 Rg4 Rf8 g8B+ Rf7 Qde2 d1B Rg7 Rg5 Q2d3 Nf6 Bh7 Qh8 Bg6 Nh7 Qc3 Ke7 e6 Kf6 e7 Ke5 e8B Be6 Bd7 Rf8 Re7 Rg8 Qd8 Rg7 Bc8 Bc7 Bca6 Bd6 Ke1 f2+ Kd2 Nd3 Qc8 Bg4 Qb3 Bc3+ Kc2 Bd2 Qf3 Bf4 Qe3 Bc7 Nd7+ Kd6 Qc3 Rb8 e5+ Kd5 Bf5 Ra8 Kb3 Bb8 Bh3 f1R Ka4 Rf3 Kb5 Nf2 Bb1 d3 Bf1 Bd6 Qcd2 Bb8 Qee2 Kd4 Qde3+ Kc3 Kc5 Bh2 Qd1 Rff7 Qde2 Bf4 Q2f3 Bd5 e6 Bbe5 Qc7 Raf8 Qc8 Rff5 Rf7 Ba2 e7 Be6 e8B Rf6 Re7 Rff5 Nb6 R5f7 Nd7
N4r1k/P3q2N/r1B1B3/Q2QQb1K/Br1b2B1/2p4R/pN2n2n/1br1b3 b - - 0 1 legal: proof: b4 a5 h4 e5 f4 g5 fxe5 d5 hxg5 b6 c4 dxc4 a4 Bf5 Ba3 Bd7 b5 Bc8 Bb4 axb4 a5 b3 a6 Qd5 Ra2 Qd8 Ra5 bxa5 Kf2 h5 Kg3 c5 Kh4 f5 e4 Kf7 g4 Kg7 d4 c3 a7 c2 d5 c1B d6 f4 b6 b2 d7 f3 b7 f2 e6 a4 e7 c4 e8N+ Kh7 e5 c3 e6 a3 e7 a2 g6+ Kh6 g7 Kh7 g5 Bf4 Rh3 Nh6 Be2 f1R Na3 b1B Qd5 Ng4 Nf3 Nc6 b8Q Bd2 Nc4 Rc1 Qbe5 Nh2 Nc7 Rb8 e8B Rb4 Na8 Qe7 d8Q Bcf5 Q8a5 Nd4 Ba4 Rg8 Nb2 Be1+ Qg3 Rh8 g8B+ Kg7 Be6 Rg8 Nd3 Kh8 Nb2 Bg7 Bed7 Rf8 Bdc6 Qf7 g6 Qe7+ Ng5 Bf6 Bg4 Ne2 Bd7 Bd4 Be8 Rf6 Nh7 Rc6+ Nf6 Ra6 Kg5 h4 Qge5 Qh7 Bec6 Qe7 Rg3 h3 Kh5 Nf1 Rf3 h2 Rh3 h1R Nh7+ Qf6 Qd7 Nh2 Qb7 Rf1 g7+ Kg8 Qd7 Qe7 Qdd5+ Be6 Qg3 Rf8 Qb8 Kf7 g8B+ Kg7 Qbd6 Bef5 Be6 Kh8 Q6e5+
q4R2/r3Bp2/2Qq2nr/QB3PQ1/4rNk1/4rp1q/1K2BR2/Rn1Bb2r b - - 0 1 legal: proof: d4 a5 h4 c5 h5 cxd4 b3 a4 h6 b5 a3 b4 axb4 gxh6 b5 h5 Rh3 h4 Rh2 Na6 Rh1 Nb8 f4 e5 b6 a3 f5 Ba6 Nc3 Bb5 Nd5 Ba4 Nf4 exf4 bxa4 Be7 Bd2 Bd6 Bc1 Bf8 Kd2 Ke7 c4 Kf6 Kc2 Kg5 e4 d5 g4 h5 e5 a2 c5 h3 a5 h4 a6 d3+ Kc3 d2 e6 d4+ Kb2 d3 b7 h2 e7 h3 e8B Nf6 c6 Bb4 c7 Ne4 c8Q Ra7 Qe1 d1Q Qc6 d2 Ne2 Nd7 b8Q Ne5 Qbd6 Ng6 Rg1 h1R Rg2 h2 Rf2 Kh4 g5 Nc3 Qf6 Qa8 Bd7 Kh5 Be8 Re7 a7 Kg4 Bd7 Re4 Be8 Nh4 g6 Nb1 g7 Rh6 g8R+ Ng6 Rf8 f3 Nf4 Rd4 Qee5 Re4 Be2 Qf1 Qa5 d1Q Be3 Be1 Bc5 Qh3 Be7 Qd6 Bd7 Re3 Be6 Rg1 Bb3 h1R Bc2 Bd2 Ba4 Re1 Bad1 Re4 Bb5 R1e3 Bbe2 Qc8 a8B Be1 Bb7 Qa8 Bba6 Nc3 Rb1 a1R Bab5 Ra3 Ra1 Nb1 Qd2 Ra6 Qa5 Ra7 Qg5#
bn4NK/4p3/3q2p1/Qr3b1b/1QBQ1R2/b2B1N2/b1rBP1N1/Q1b3kb b - - 0 1 illegal: No possible last move
N3r1kR/2n5/2r1RpKp/1N3Q2/r2R3q/Pq1bR2n/1q1B1Q2/2NnQr2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 g6 g5 Bd6 Bh3 f3 Bf5 gxf5 g6 f4 Nc3 Be7 Nb1 Bg5 hxg5 Ra7 Rh5 Ra5 Rh1 Ra8 Kf2 Kf8 e4 c5 d4 b5 d6 f6 a3 b3 e5 c4 d7 c3 d5 c2 e6 b4 g7+ Ke7 g6 b2 Nc3 b1Q Nb5 b3 Qe1 b2 Ne2 Bb7 Bd2 Na6 Nc1 Nh6 g8R Nf7 g7 Nc7 Rh5 Qc8 d8R Ng5 Rd6 Ra4 Rgd8 Qd7 g8Q Ba6 Qg6 Re8 Qf5 Kf8 e7+ Kg8 Re6 Qa2 d6 b1Q Rh6 Qab2 Re3 Qe6 d7 Qc4 Rh5 Qbb3 Re6 Q1b2 Rh3 Rf8 e8N h6 Rb1 Bb7 Rg3 Be4 Rh3 Bd3 Rg3 Nd5 Nec7 Re8 Na8 Qe4 Rb8 Qeb4 d8Q Nc7 Qd4 Q4c4 Rb7 Qcb4 Kg1 f2+ Kg2 f1R Rge3 f3+ Kg3 f2 Kg4 Nh3 Kh5 Q4c4 Qa7 Qcd4 Kg6 Qh4 Ne2 c1R Ra1 Rc3 Rd1 Rcc4 Nc1 Rc6 Qd4 Rh1 Qf4 f1N Qff2 Rg1+ Rg3 Ne3 Ra7 Na6 Rh7 Rf1 Rf3 Nd5 Rfe3 Nac7 Bb4 Nc3 Ba5 Be2 Rd4 Nd1 Bd2 Bd3 Rh8+
Qnk3Qq/K1p1nR2/N3pb2/4nRn1/2P2rBQ/3n1b2/5RQ1/2b1nBB1 b - - 0 1 legal: proof: e4 b5 a4 a5 h4 g5 Ke2 d5 Kd3 g4 Kc3 Bf5 f3 gxf3 axb5 dxe4 g4 Bc8 g5 Ra6 Na3 Re6 Nc4 Rc6 h5 Rg6 Ne5 f2 Nef3 exf3 hxg6 Qd7 Qe1 Qd5 Qd1 Qd8 Kc4 Kd7 b4 h5 d4 f5 b6 h4 Kb5 a4 c4 h3 b7 h2 g7 f4 g6 a3 d5 a2 d6 Rh7 Qe2 Rh4 Nh3 e6 Ng5 Qf6 Ne4 Ne7 g8Q Bh6 Be3 Qh8 g7 Rg4 Rd1 a1B Rd5 Bf6 Rf5 Bhg5 Rg1 h1N Ka5 Rh4 b5 Rg4 b6 Bh6 Bh3 f1N Rg2 Nh2 Bg1 f2 Qf1 Rh4 Bg4 f3 Qe2 f1N Rf2 Ne3 Nc5+ Kc6 d7 Nc2 d8Q Ne1 Qb2 Bc1 Na6 Bd7 Qe2 Be8 Qd4 Bh5 Qf4 Kd7 Qf1 Nd3 Qg2 Ng3 Qg5 Ne4 Kb5 Rh3 Qh4 Ng5 Ka5 Nf1 Kb5 Ne3 Ka5 Nc2 Kb5 Nbc6 b8Q Nce1 Qa8 Nb8 b7 Rh1 Qh7 Rh3 g8B Kd8 Bf7 Rg3 Bh3 Rg4 Qg8+ Kd7 Bg6 Rd4 Bg4 Rf4 Rc2 f2 Rd2 f1N Rf2 Nbc6 b8R Nd2 Rf8 Ndf3 Rf7 Nfe5 Nc5+ Kd6 Ka6 Nb8+ Ka7 Nb4 Rd2+ Nbd3 Na6 Kd7 Rb2 Nb4 Rf2 Nbd3 Bh3 Bf3 Bh5 Qg7 B5g4 Qf8 Qgg3 Kc8 Bf1 Qe8 Qg2 Qd8 Qg7 Qh8 Qg8+
R3Q2B/1nn2n2/q1NN2rk/2n1P3/1r1Q1K2/BpB2Br1/1Nrp4/5brQ b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 b5 e5 fxe5 f4 b6 f3 g3 axb6 Bg5 b5 Bc1 b4 a4 h5 Ra3 Be7 Re3 Bf6 Re4 Bg5 Rg4 Bf4 gxf4 hxg4 Kf2 Kf8 Kg3 b5 c4 d5 e4 g5 h4 Kg7 h5 f2 e6 b3 f5 b2 a5 d3 e7 d2 e8Q b4 f6+ Kh6 f7 d4 c5 d3 a6 Qa5 a7 Qa6 e5 Nd7 c6 Nc5 c7 Nb7 Qe2 d1N Bd2 Nc3 Na3 b1R Nf3 Ne4+ Kh2 g3+ Kg2 Nec5 Be1 g4 Bc3 d2 Nd4 b3 Nc4 Rb8 a8Q Rb2 Qf3 Rc2 Be2 f1N Qd5 Be6 c8N Ne3+ Kg1 g2 Kh2 g1R Nc6 Bf5 Qd4 Rg3 N8d6 Bd3 Ra1 Nd5 Bf3 Bf1 Nb2 Nc7 Ra4 Rh7 f8B+ Rg7 Be7 Rg6 Bf8+ Kg5 h6 Kh5 h7 Nh6 h8B Nf7 Be7 Kh6 Ra3 Nbd8 Ra2 Rb4 Qb7 Qb5 Ra8 Qa6 Qb5 Ndb7 Qe2 Rg1 Qg2 g3+ Kh3 Bd3 Qf1 g2 Qd1 Bf1 Kh4 Re6 Kg4 Rg6+ Kf5 Rh1 Qc1 g1R Kf4 Rh3 Qb1 Rhg3 Qa1 Bd3 Qf1 Bc4 Qg2 Bb5 Qh1+ Rh3 Qg2 Rc4 Be4 Rhg3 Bf3 Nd7 Nc8 Ra4 Ba3 Bf1 Nd6 Ndc5 Qe6 Rc4 Qe8 Rb4 Qh1+
QrN3R1/6Qq/3q2B1/nqPqN1BQ/2B3b1/5pb1/q1qp2N1/1rk2BK1 b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 a4 b5 axb5 e5 f4 exf4 b4 Nc6 h5 Nce7 Ra6 Ng6 hxg6 f3 Rf6 Bb7 Rf4 gxf4 g5 Bc8 Kf2 Ke7 e4 Ke6 c4 Ke5 g7 a5 g6 h5 b6 d5 b7 f5 b8Q+ Qd6 b5 d3 c5 Kd4 b6 a4 e5 a3 e6 a2 e7 a1Q e8B d2 b7 h4 Bd3 h3 Na3 Kc3 Qf1 d1Q Bdb5 d4 Nb1+ Kc2 Qe1 h2 Kf1 d3 Ba6 f2 Nh3 Ne7 g8B Nc6 g7 Qa2 Be3 d2 Bg6 Kc1 Na3 Na5 Qa7 Rb8 Rg1 h1Q Nc4 Qhd5 Ne5 Be7 B8f7 Bh4 g8N Bg3 Ne7 Bd7 Nc8 Rh5 Ng5 Rh1 Ngf3 Be6 Kg2 Bd7 Bf1 Be6 Qe2 Qdc2 Qaa6 Bd7 Qac4 Be6 Qe4 Bd7 Ne1 Be6 Qh5 Bd7 Qh2 f3+ Kh3 Be6 Bg5 f4+ Qf5 Bd7 Ng2 Be6 Qg4 Bd7 Bfd3+ f1Q Bg8 Qe1 Bf1 f2 B8f7 f3 Bg8 Ra8 b8Q Qee4 Qb7 Rb8 Qa8 Qb7 Bgc4 Qed5 Bfe2+ f1Q Bed3 Bc6 Qd7 Qb5 Qg7 Qe1 Bf1 Qe2 Kg4 Qed3 Qh5 Bb7 Bf7 Qh7 Bg6 Be1 Kf4 Bg3+ Ke3 Bc6 Bcd3 Bd7 Bde2 Bf4+ Kf2 Bg4 Bc4 Rh3 Rh1 Bg3+ Kg1 Rh2 Nf4 Re2 Ng2 Re3 Rh4 Rb3 Rh2 Rb1 Rh4 Bf5 Rf4 Bd7 Rf8 Bg4 Rg8
r1r4k/4R2n/2NQ3P/r5r1/2pNN1Q1/Qbp1rR2/R3Bb1r/bn3KR1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 b3 f5 Ba3 h6 Bb2 f4 Bf6 Qd7 Bg5 Qf5 gxf5 hxg5 b6 Bd7 f6 c3 d4 a6 e4 c5 h4 c4 b4 Kf7 e5 g4 d5 g5 d6 f2+ Ke2 a5 b5 a4 h5 f3+ Ke3 g3 b7 g2 b6 a3 h6 a2 Qa4 g4 Qa3 g3 Nd2 Nc6 b8Q Na5 b7 Nb3 Rc1 a1B Qd8 Ba4 Ne2 g1R b8Q g2 d7 Bc5+ Ke4 Bd4 Rh2 Rh1 Qbc8 g1R e6+ Kg6 e7 Kh7 e8R Rg2 f7 Rg5 Rd1 Nf6+ Kf4 Rga5 Ne4 Nd2 Kg3 Nb1 f8R Bb3 Rg2 Rh2 Rg1 Bc5 Rd2 Bb6 Ra2 Be3 Bh3 f1R Nd4 f2 Bg4 Re1 Re6 Rg8 Re7+ Kh8 Qdc7 f1R d8N Nh7 N8c6 Rff5 Qcd6 Rg5 Rff1 Rh4 Kg2 Rd8 Qcd7 Rdc8 Rf6 Re2+ Kf1 Bf2 Rff7 Re3 Be2 Rh1 Qg4 Rh2 Rf3
1r2R1B1/3p4/1k1Np2q/1Qq1P3/R2bK1RB/1q3Q1B/rb6/1QqnR1rr b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 e6 Ba3 Nc6 Kd2 Nce7 Ke1 Qb6 Kf2 Kd8 fxe7+ Kc7 Ke1 Kc6 Bc1 Qd8 g4 Kd6 Bd2 f5 Bc1 b6 Qd3 f4 Qh3 Ba6 Qh4 Bd3 Nc3 Ke5 Nb1 Bf5 Qg3 Kf6 Qd3 Kg6 Qd1 Kf7 gxf5 Qc8 Nc3 Qd8 Ne4 h6 Nf2 h5 Ng4 hxg4 Kf2 Ke8 h4 g5 c4 g3+ Kf3 b3 a4 g4+ Ke4 f3 c5 b2 a5 b1Q+ Qc2 g2 f6 d3 a6 f2 c6 d2 c7 d1Q c8R g3 a7 b5 h5 b4 h6 b3 h7 b2 Bg5 Nh6 Rh4 Qdc1 Rg4 Nf5 Nf3 g1R Ne5 g2 Bh4 Bg7 Nc4 Qh6 e3 Rg8 h8Q Qc1 Qb1 Rf8 Rb8 Qc8 Qg8 Bh8 Qg5 Rh1 Ra4 g1B Bh3 f1R Rbb4 Rb8 a8Q Qc5 Ra1 Rf2 Rba4 Rg8 Qb7 Rg6 Qf4 Rg2 Qf3 Bf2 Qb5 Rgg1 Qc2 b1Q Qd3 Qb3 Qb1 Kf7 e8B+ Kf8 f7 Bb2 Rf4 R6g2 Rg4 Rgh2 Nd6 Rhg2 Bg3 Ke7 f8R Kd8 Bh4+ Kc7 Bf7 Rgh2 Re8 Rhg2 Qf1 Kb6 Bg8 Nd4 Q1e2 Nb5 Qc4 Nc3+ Kd3 Rb7 e4 Bd4 e5 Nd1+ Ke4 Rb8 R1a3 Qbb5 Re3 Qb3 Re2 Ba1 Re3 Ra2 Re1 Bab2 Qb5+
1Kb5/N1Bk2R1/Q5RR/2pPn3/4rrp1/1bQBBn1p/1b4QB/1r3qn1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 g5 f4 b4 f5 b3 f6 exf6 g4 Ke7 Nc3 Kd7 Ne4 gxh4 Ng5 Ke8 axb3 Bd6 b4 Bf8 b5 Nh6 N5f3 Ng8 g5 f5 Ne5 Nf6 Ng4 fxg4 Rh3 Ng8 Rh2 Qd6 Rh1 Qd8 Kf2 h5 Ke3 f5 Kf4 c5 Ke5 a5 e4 a4 d4 f4 b4 a3 d6 h3 d5 f3 g6 f2 g7 h4 d7+ Ke7 b6 a2 b7 h2 b5 Na6 b8B Nf6 g8R Bg7 b6 Bb7 Qe1 Nc7 Bd3 f1B Be3 Bh6 Qc3 Bc8 b7 Ne6 Nf3 Nd4 Bc7 Bg7 b8B Qf8 Rb1 a1N Rb6 Ne2 Nd4 Nc2 Nb5 Ne1 Na7 Ng1 Ra6 Be2 Rc6 Bd1 d8Q+ Kf7 Qd6 Ke8 Ra6 Nd7+ Ke6 Rh5 e5 Nef3 Qb6 Rh7 Qbb2 Ba4 Qg2 Bb3 Rb6 Bf6 Ra6 Re7+ Kd6 Bh8 e6 Nde5 Rc6 Rf7+ e7 Rf4 Ra6 Nf7+ Kc6 N7e5+ Kb6 Be6 Kb7 Kd7 Rb6 Bf5 Rbg6 Bg7 Nc8 Raa4 Na7 Qf6 Bd6 Rae4 Bbc7 Ne2 Kb8 h3 Ra1 h1R Ra6 Rb1 Rh6 Nc4 Be5 Qf7 Rag6 Neg1 Bed6 Be6 Be5 Rf5 Bh2 Rff4 Ba5 Nce5 e8Q+ Kd6 Qf8+ Kd7 Bc7 Qf6 Ba5 Bf5 Bc7 Qa6 Qf6 Bh8 Bc2 Qf1 Qa6 Nf7 Nb5 Ke7 Qg7 Bc8 Na7 Kd7 Qga1 Bc3 Bd3 N7e5 Q1a5 Ba1 Qc3 Bb2 R8g7+
b3n3/1q5r/R2N2Bn/p1KB3R/2RQ1r1P/1k1p2bQ/1QpBBn2/3b2r1 b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 g4 b5 axb5 h5 d4 cxd4 Nc3 dxc3 gxh5 Qf6 Ra4 Qg5 Ra1 Qd8 Kf2 Ke7 e4 Ke6 h4 g5 b4 f5 h6 d5 e5 d4 b6 g4 b7 f3 h7 f4 c5 Kd5 c6 Qe7 c7 Nh6 e6 Nd7 b8Q Bb7 c8B Nf6 b5 Ne8 Ne2 Kc4 b6 d3 Nd4 Qf7 Nf5 Bd6 e7 a6 Bd2 c2 Qa7 Kb3 Rg1 a5 Be2 Rb8 Qf1 Ba8 b7 Be5 Ra4 g3+ Ke1 g2 Kf2 Rg8 h8R Rg7 Re4 Rh7 Rc4 Bd6 Be6 Rd8 Rh1 g1N Qd4 Be5 Nd6 Nh3+ Ke1 Rd7 Rg1 Nf2 b8Q+ Rb7 Qh3 Rb4 Bd5 Qg7 Bc6 Qf7 Be4 Qd5 Rg6 Qb7 Bd5 Ra4 Bb4 Ra1+ Kd2 Rg1 Qe3 Nh1 Qea7 f2 Qd4 f3 Ke3 f1B Bd2 f2 Rf6 Bg3 Ke4 Nc7 e8B Bg2+ Ke3 f1R Bg6 Rf4 Re6 Nf2 Rf6 Ng8 Re6 Bf3 Rf6 Rd7 Rh5 Nh6 Qh8 Ne8 Re6 Qb4 Qhf6 Rh7 Qb2+ Ka4 Qfd4 Bh2 Qf6 Ne4 Kd4 Re1 Nc8 Rg1 Ra6 Bg3 Bf1 Bd1 Qe5 Nf2+ Qe4 Bc6 Be2 Bb7 Nd6 Ba8 Qc1 Kb3 Qa1 Qb8 Kc5 Qb7 Qed4 Rg2 Qc1 Rg1 Qcb2#
q1r4Q/1R1R3b/1p4RQ/1N3N1p/2n1b3/rP1k3p/2R2KQn/1nBr1b1N b - - 0 1 legal: proof: h4 d5 c4 e5 cxd5 a5 f4 exf4 b3 a4 Qc2 g6 Qc3 a3 Qb2 axb2 g4 Qd7 g5 Qd6 h5 Bh6 Bh3 Qe5 Bg4 Bf8 h6 Nf6 Bh5 gxh5 g6 Ra7 g7 Ra8 g8N Bg7 hxg7 Qd6 Kf1 Qe7 Ke1 Qd8 a4 Kd7 e4 Kd6 d4 c5 a5 f3 a6 h4 a7 h5 Nc3 b1N Kf2 b6 Nh6 c4 g8R h3 Rg6 Bf5 Rh2 Nd7 Nge2 Ne5 Ng3 Qb8 Ra2 Rc8 Nh1 Qb7 Rhg2 Qb8 Rg7 Bh7 Rc2 Qb7 R2g6 Qb8 Kf1 f2 Ke2 f1B+ Kf2 Bg2 Nb5+ Ke7 d6+ Ke6 d7 c3 d8R Nc4 d5+ Ke5 d6 Ng4+ Kg1 f5 d7 f4 Nf5 Nh2 Kf2 f3 Rf7 Ncd2 Re7+ Kf4 e5 Ke4 e6 Nc4 Rf7 Qb7 e7 Kd3 e8Q Qe4 Qe6 Qc6 Kg3 f2 Qf6 f1B Kf2 Be4 Qe6 Rab8 a8Q Qd5 Qac6 Ra8 Qf6 Ra6 Qg5 Ra7 Qg2 Ra3 Qf6 Qa8 Qg7 Rc7 Qh6 Rc6 Rb8 Rc7 Rb7 Rc8 Ra2 c2 d8Q+ Nd6 Qh8 Nc4 Be3 c1R Rc2 Re1 Bc1 Rd1 Rfd7+
K7/NQ2RBr1/Q2QnNn1/1qP1b1pk/5p1p/qN1QR1b1/6r1/R2n2r1 b - - 0 1 legal: proof: d4 b5 h4 e5 g4 c5 a4 cxd4 h5 g5 axb5 Bb7 f4 Be4 Bd2 Bg6 hxg6 f5 Bc1 fxg4 f5 Qb6 Be3 Qd8 Bf4 exf4 Kd2 h5 Kd3 a5 Ke4 d6 Kd5 d3 b4 d2 c4 g3 e4 h4 c5 g2 e5 a4 f6 a3 b6 a2 f7+ Ke7 g7 Rh5 b7 Ra5 e6 Kf6 e7 Kg6 e8R Na6 Kc6 d5 b8Q d4 Kb7 d3 b5 Qc8+ Ka8 Qd7 b6 Rh7 b7 Bd6 f8Q Be5 Ne2 g1B Qfd6+ Kh5 Nbc3 Ne7 g8N Rg7 Qc8 Bf2 b8Q Qb5 Qbb7 Ng6 Re7 Bg3 Rh3 Ra3 Qb1 d1R Nc1 d2 Bc4 Rg1 Nb3 d1N Qbd3 Ra5 Bf7 Nc7+ Kb8 Ne6 Nf6+ Kh6 Qc6 Rg2 Qa6 Rg1 Rc1 a1Q Ka8 Ra2 Rb1 Rh2 Rc1 Qa3 Ra1 Be1 Re3 Bg3 Qdc6 Rhg2 Qcd6 Qbb4 Nb5 Qba5 Nh7 Kh5 Na7 Qb5 Nf6+
8/K4knQ/2NNb3/N1p1rBqr/1q1p4/QBPQ1pb1/Nq1Bn3/r3R3 b - - 0 1 legal: proof: b4 a5 g4 h5 d4 g5 f4 e5 a4 b5 axb5 axb4 Ra3 Nf6 Rg3 Ng8 dxe5 gxf4 g5 Ra6 Rg2 Ra8 Rg4 hxg4 Kd2 c5 Kd3 d5 h4 f5 e4 g3 e6 f3 e7 f4 h5 f2 c3 g2 g6 f3 g7 d4 Kc4 b3 b6 b2 Kb5 Qd6 b7 Bf5 h6 Ra7 h7 Nh6 g8B Qe5 Kb6 Ra8 Nd2 b1Q+ Nb3 Be6 Ne2 g1Q Qd3 Qeg5 e5 Qa1 Na5 Nc6 b8N Bg7 Bh3 f1R Bf5 Re1 Bd2 Nb4 Nc1 Qb2 Na2 Re3 Nbc6 Qgb1 Re1 Re4 Qc4 Nd3+ Qb4 Nc1 Kb7 Rb8+ Ka7 Ne2 Qa4 Qb4 Qa3 Q1b2 Bf7+ Kd7 e8N Rd8 Bh3 Nf5 Nd6 Bf8 Bg8 Ng7 Bf5 Re8 Bf7 Rh4 Bg8 Rh5 Bf7 Rg8 h8Q Be7 Qh7 Bd8 Bc2 Bc7 Bb3 Rh8 Bg6 Rh1 Bf5 Re7 Ndc4 Ke8 Nd6+ Kf8 Qg6 R8h5 Qh7 Bd7 e6 Re8 Ndc4 Bg3 e7+ Kf7 Nd6+ Kf6 Bg4 Be6 Bf5 Nf4 Re5 Ra1 Re1 Ne2 Qa4 Rh8 e8Q Rg8 Qb8 Re8 Qbb5 Re7+ Ndb7 Kf7 Qd3 Bd5 Qa3 Re5 Kb8 Bc4 Ka7 Be6 Nd6+
1B3Q1r/1R1Qq1r1/2NNP3/1p1QR1Q1/pb1r2q1/1b1npnb1/k1N3K1/4R3 b - - 0 1 legal: proof: b4 h5 g4 b5 gxh5 c6 a4 Qc7 axb5 Qg3 b6 Qc7 b5 Qd8 e4 cxb5 d4 f5 Bg2 e5 Bf3 exd4 e5 Rh7 Bc6 Rh8 Be4 fxe4 Kf1 Ke7 f4 Ke6 h4 Kd5 b7 Kc4 f5 a5 h6 g5 h5 d5 h7 g4 h6 d3 f6 d2 f7 a4 Ne2 g3 Kg2 d4 Re1 d3 Nd4 Be6 Nc6 Bb4 f8Q Nd7 b8R Ra7 Rb7 Nc5 Na3+ Kc3 Qg7 Ne7 Qg5 Bb3 e6 Nf5 Qf3 d1Q Bf4 Kb2 c4 d2 Bb8 Qf6 Nc2 Nd3 c5 Nd4 Rc1 e3 Qfd5 Qe7 Qd7 Re8 h8Q Ka2 h7 Qg4 Qhe5 d1R h8Q Nf3 Qed5 Rg8 Qhf6 Rg7 Qf8 Ra8 Bd6 Re8 Bb8 Rc8 Na5 Re8 c6 Rc8 c7 Rd8 Qff5 Rh8 c8N Rd2+ Kf1 Rd1 Nd6 Rd2 Qff4 Rd1 Qf8 g2+ Ke2 g1B Kf1 Rd2 Nc6 Bh2 Rcd1 Bg3 Rc1 Nf2 Kg2 Rd3 Rcd1 Rd4 Rd2 Nd3 Rf2 Nfe5 Rf5 Nf3 Re5
1q1B2Q1/1rB2p1N/1NQQQ1r1/P2bB3/2nNR2p/rqp2k2/1n6/n1b4K b - - 0 1 legal: proof: c4 e5 f4 a5 fxe5 g5 b4 axb4 h4 d5 cxd5 Bc5 h5 Bd6 a3 Bf8 g4 Qe7 a4 Qf6 Rh4 gxh4 g5 Kd8 g6 Ra6 g7 Ra7 Bh3 Ke8 Bf5 Ra8 Bg6 hxg6 Ra3 Qe7 Rh3 Qd7 Rh1 Qd8 Kf1 Ke7 Kg2 c5 d4 b5 e4 g5 h6 c4 h7 b3 d6+ Ke6 d7 b2 Bf4 b4 Be3 g4 Bf4 b3 Na3 b1N Qd3 b2 Ne2 c3 Qb5 g3 Nc4 Nd2 Re1 b1Q Kh1 Nc6 Nb6 Nge7 g8Q Nd5 Qc5 Qc7 d8Q Na5 Qc6+ Bd6 Qdf8 Bb7 Qb8 Ne3 d5+ Ke7 e6 Kf6 e5+ Kf5 e7 Ke4 e8N Ndb3 e6 Nac4 e7 Nb2 Nf6+ Kf3 e8Q Nec4 Qec8 Ba3 Q8e6 Na1 Be5 Qc8 Qbd6 Qb8 Bf4 Qa2 Be5 Qb3 Nd4+ Kf2 Re4 g2+ Kh2 g1R a5 Ra7 Bf4 Rg6 Kh1 Ba8 Qgc8 Rf8 h8B Rb7 Nh7 Rfg8 Qcd8 Rg2 Q8f8 R8g6 Qg8 R2g4 Bhe5 Rg2 Nc2 Kf3 Bh2 Rd2 Nd4+ Kf2 Qg4 Ra7 Bh8 Na4 Qcc5 Qc2 Qdd8 Qb3 d6 Bd5 d7 Rb7 Bc7 Ra2 Qe6 Bc1 Bhe5 Nab2 Qcc6 Ra3 Qdf8 Nc2 d8B Na1 Ne2 Kf3 Qfc5 Qc8 Q5d6 Qb8 Nd4+
kNn1r3/1p1rb3/B2Q3B/3n1N2/n1Q1K2B/1rqpR1QN/pP6/2qb1N2 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 gxh5 a5 Qd2 Qb6 Qb4 Qd8 a4 axb4 Ra3 bxa3 Ke2 d5 Kf3 Kd7 c4 Kc7 h4 e5 f6 g5 f7 d3 h6 a2 h7 d2 a5 d1N c5 d4 c6 g4+ Ke4 g3 f4 g2 a6 Ba3 f8N Nd7 a7 Be7 h5 Nb6 h6 Bf6 f5 Nc4 Nd7 Be7 f6 Nce3 f7 Qf8 Nh3 g1Q Nd2 Qfg7 f8Q Nd5 Nb8 Bg4 Ba6 d3 Nf1 Qc5 Bg5 Qc1 Bh4 Kb6 c7 Bf3+ Kf5 e4 c8Q e3 Qc4 e2 Rh2 e1R Re2 Qgc3 Re3 Bh5 Ke4 Re2 Qf4 Rf2 Qg3 Rf7 Nc6 Rc8 Nb8 Rc6 a8N+ Ka7 Nc7 Rb6 Ne8 Ka8 Ng7 Rb3 Qd6 Nb6 Nf5 Nf6+ Kf4 Rc8 h8B Nfd5+ Ke4 Re8 h7 Nc8 Bg7 Q3d2 h8Q Bf8+ Be7 Qa5 Qg8 N1c3+ Ke5 Na4 Kd4 Qac3+ Ke4 Bd1 Bh6 Rh7 Qgg3 Rg7 Qge5 Rh7 Bf6 Rd7 Bh4 Be7 Qg3
3B2q1/3kQ3/nb1b1Bpp/2Rn4/1nQ2r1b/KbRp4/1NR3P1/2rQ1R1B b - - 0 1 illegal: Other
br2b3/kn1p4/q4p1R/1bbNB3/QN1rn1P1/1QQR1N2/2pR3R/K6n b - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 g5 hxg5 exf4 d4 cxd4 c3 d3 e3 Bg7 Ra5 Bh6 Ra1 Bf8 Be2 Qb6 Bf3 Qf6 Bd5 Qb6 Bb3 Qd8 Bc2 dxc2 Kd2 a5 b4 h5 g4 f3 b6 h4 c4 a4 Kc3 f2 Kb2 f1B e4 f6 b7 h3 g6 h2 c5 Qe7 g7 Kd8 e5 Kc7 b5 Rh7 c6 Kb6 e6 Rh5 c7 Ka7 Bf4 Qd6 e7 Na6 e8R Nh6 g8R Nc5 b8N Qa6 Rg6 Rd5 Re2 Rd4 Nf3 Nf5 Ra3 Ne4 Rd2 Bc4 Ka1 Nfg3 Rh6 Bc5 Be5 Bf7 Nc3 Be8 Nd5 Bb7 c8Q Bc6 Rad3 a3 Qe2 a2 Qe3 Nc3 Qf4 Nce4 Rhd1 h1B Rdh2 Bg2 R1d2 Nh1 Qc7+ Qb7 Na6 Rb8 Qc8 Qb6 Nab4 Qa6 Qg3 Ba8 Qc6 Bf1 Qe1 Bb6 Qc3 Bc5 Qb1 Be2 Qbb3 Bf1 Qa4 Be2 Kb2 a1N Ka2 Nb3 b6+ Kb7 Kb2 Na5 Ka1 Bf1 Re3 Bb5 Red3 Rd8 Nc7 Kb8 b7 Ka7 Ncd5 Rc8 Ne3 Kb6 b8Q+ Nb7 Qb3 Rd8 Qc7+ Ka7 Ned5 Rb8 Qc6 Bf8 Qcc4 Bc5 Qcc3
r1QNk2N/r1p1b3/5N1B/pKn4B/2p1nn2/1Q3nN1/R2bP1B1/2Q3qr b - - 0 1 illegal: No possible last move
4R2n/R1r1B3/3p4/qp1B1K1R/1kQ1N2p/1Pnb4/nQRq3Q/b3Bn1r b - - 0 1 legal: proof: e4 c5 a4 g5 d4 cxd4 h4 gxh4 a5 f5 exf5 a6 Nc3 b6 Nb5 axb5 axb6 Bh6 Be3 Bg7 Bc1 Bf8 Kd2 e5 Kd3 Ke7 Ke4 Kd6 c4 Kc5 g4 h5 f4 d3 f6 d2 b3 h3 f5 h2 b7 Rh7 f7 Bd6 f8B Rh6 f6 Ra7 g5 Qe7 f7 Qf6 g6 Qg5 g7 Na6 b8Q Rc7 Be7 Kb4 Qf3 d1N f8R Qd2 c5 Nc3+ Kf5 e4 c6 e3 Bg2 e2 Re8 e1Q Nh3 Rh8 Nf2 Nh6+ Kf6 Bc5 g8Q Nf7 Qg7 d6 Ne4 Bb7 Kf5 Bd4 Qfg3 Ba8 Qb6 Rh7 Ra2 Nh8 Rc2 Bb7 Ra8 Be5 Ra7 Ba8 Bb2 Qa1 Qh4 Qa5 Bc1 Nb1 Nc3+ Qd4 Bf6 Rf7 c7 Nc5 c8R Nd3 Rg1 h1N Rf8 Rc7 Bd2 Nc1 Re8 Na2 Be7 Bd5 Re1 Bc4 Qc6 Qe3 Be4 Bd3 Rg1 Qe2 Be1 Qd2 Rg5 Ng3+ Ke6 Nf1 Kf5 Bc4 Bd5 Rh6 Ne4 Bd3 Qf4 Ba1 Qb2 Nbc3 Qf2 Rg6 Qh2 h4 Rh5 Rg1 Qa6 Rh1 Qb6 Qa4 Qc6 Qa5 Qc4+
k1q4q/1R2P2B/r1p5/2n2p2/n1R1QQ2/rRN1KbrQ/2Np1Q1N/1n3q2 b - - 0 1 legal: proof: d4 b5 h4 d5 c4 dxc4 a4 g5 axb5 gxh4 Nh3 e6 Ng1 e5 f4 Bd6 e4 Be7 d5 Kd7 Be3 Ba6 Bd4 exd4 e5 Bf6 e6+ Ke8 Ra5 Bc8 Ra1 Be5 fxe5 Ke7 Rh2 Kf8 Rh1 Ke8 Ke2 a5 g4 h5 b4 f5 g5 c3 d6 h3 g6 h2 g7 h4 b6 h3 e7 Kd7 b5 a4 b7 c2 b6 Kc6 e8Q+ Nd7 b8N+ Kb7 e6 d3+ Ke3 c1N Qd2 a3 Nc6 a2 Nb4 Ne2 Nf3 Nc5 d7 Ne7 g8R Ra6 Rg7 Ka8 Nc2 Bb7 Nc3 Nc8 Rb1 a1R Rb3 R1a3 Rg4 Rh4 Rc4 Rg4 e7 Bd5 Qh8 c6 Qh7 Qc7 d8Q Rg3 Qh5 Be4 Qd4 Qb7 Qe1 d2 Qf2 Bd5 Rg1 h1Q Qe4 h2 Qh3 Qd7 Bg2 Qb7 Rgb1 Qf1 R1b2 h1Q Rb1 Na7 R1b2 Qc8 Rb1 Nb5 R1b2 Rg4 Nh2 Rg3+ Bf3 Na4 Rb1 Nbd4 R1b2 Ne6 b7+ Ka7 Rb1 Nec5 R1b2 Rg1 Bh5 Rg3+ Qef3 Kb8 Bg6 Ka7 Bh7 Be4 Na2 Nec3 Rb1 Bd5 R1b2 Nb1 Nc3 Rg4 Qf4 Bf3 Qe4 Rg3 Rd4 Qb5 Rc4 Kb8 Rbb4 Qf1 R2b3 Qa5 Rb5 Qad8 Rb6 Qh8 R6b5 Kc7 b8Q+ Kd7 Qa8 Kc7 R5b4 Qe6 Qg8 Qd7 Qgg4 Qdc8 Nb5+ Kb8 Nc3+ Ka7 Rb7+ Ka8 Qgf4
N2NN3/Q3Pp2/1KR1RR2/1Qn1p3/1n1B4/4rnR1/Qp2nrkn/r2qb3 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 a5 b4 axb4 f5 b3 Bc4 dxe4 Bd3 Be6 fxe6 c6 Bb5 cxb5 Bb2 b4 Ba3 Qd6 Bc1 Qd8 Ke2 Ke7 h4 Kf6 d4 Kf5 c4 Kg4 a4 Kg3 h6 g5 e7 b5 h7 e3 Kd3 g4 c5 e2 h5 e1R a5 b2 a6 b3 h6 b4 Kc4 Qc8 Kb5 Re2 a7 Kf2 c6 g3 d5 g2 d6 Bg7 d7 Re1 d8R Re3 c7 Rg3 Nd2 b1N Bb2 Bf6 Bd4+ Re3 Nh3+ Kg3 Nc4 g1N Ra6 b2 Qa4 b3 Nd6 Bh4 Ng5 Qd7+ Kb6 Nc3 c8R b1N Rh3+ Kg2 Qb5 b2 Ne8 Ne4 Ne6 Be1 Rc6 Nbc3 Rdc8 Nf3 Nd8 Qd5 Re6 Ngf6 Rcc6 Ng4 Rf6 Rg8 h8Q Ngh2 h7 Nc5 Rce6 Rg3 Qg7 Rg6 h8Q Ne2 Qgh7 Rg8 Qb1 Nc6 Qa2 Nb4 Qh4 Rg5 Qe4 Qb3 Qb7 Rf5 Rc6 Qd1 Rce6 Rc8 a8N Rc7 Qa7 Rd7 Bc3 Rdd3 Bd4 Ra3 Kc7 Ra5 Rac6 Ra4 Kb6 Raa3 Qb3 Ra1 Qba2 Nh4 Qb7 Rf2 Qba7 N4f3 Rg3+
1QBbr1Q1/p4b2/4N1bB/2Q1B3/pB3Nq1/n5pb/KnR4P/2k2Nbn b - - 0 1 illegal: No possible last move, all moves rejected
b1r1rkNn/3QqQ1p/1q1p1NQ1/1N6/1B5r/1n3p1P/K2RBrr1/1BB5 b - - 0 1 legal: proof: d4 c5 b4 e5 f4 exd4 a4 b5 axb5 cxb4 e4 g5 e5 Nf6 e6 Bd6 Ra3 Be5 fxe5 Ng8 Rf3 Qa5 Rf6 Qd8 Rf4 gxf4 Kd2 a5 g4 f5 c4 d3 g5 b3 Kc3 f3 Kb2 a4 c5 f4 h3 d2 g6 f2 g7 f3 e7 Ra7 b6 Rc7 b7 Nh6 g8N Nf7 c6 Na6 b8B Bb7 Nc3 Rc8 c7 Nc5 Nd5 Ba8 Be2 f1R Rh2 a3+ Ka1 b2+ Ka2 b1R Ba7 Nb3 Bc5 Rf2 Bb4 Rg2 Qc2 d1R Qg6 Rf2 Rg2 d6 Rh2 Rb8 c8B Rd4 Bf5 Rh4 Be4 Rc8 Bc2 Kd7 Ndf6+ Ke6 e8Q+ Qe7 Ba6 Rg2 Ne2 Rf2 Nc3 Rg2 Bh6 Rf1 Bc1 Rff2 Qc6 Re8 Be2 Rc8 Nb5 Re8 Kb1 a2+ Kb2 Rc8 Bb1 Re8 Rh1 Rc8 Rd1 Re8 Rd2 a1Q+ Kc2 Qa6 Kb2 Qb6 Ka2 Rc8 Qgc2 Ng5 Qd7+ Kf7 e6+ Kf8 Qcc7 Nf7 Qb7 Qed8 e7+ Kg7 e8Q Qe7 Nh6 Rg8 Qd5 Nh8 Qeh5 Rge8 Nhg8 Kf8 Qg6 Nd4 Qc4 Nb3 Qcf7+
4BKnQ/1bq1nN1R/bk1N1B1n/1n2N3/pQ2PQ2/1q5p/Bb1r2p1/B7 b - - 0 1 legal: proof: d4 f5 b4 c5 g4 cxd4 a4 fxg4 Ra3 b5 axb5 e5 Bg2 e4 Bh3 Qf6 Bf1 Qd8 h4 g5 Ra2 a5 Bf4 g3 Ra3 g4 Rd3 exd3 Bc1 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Kf7 Nf3 Ke7 Ng1 Ke8 Kd2 h5 c4 d5 f4 Kd7 e4 Kc7 g6 g2 c5 h4 f5 g3 g7 a4 b6+ Kb7 b5 Nh6 g8B Qd7 c6+ Ka8 b7+ Ka7 b6+ Ka6 f6 Kb5 f7 Qc7 Nh3 g1N Qh5 g2 Bb2 Ba3 f8Q Nd7 b8Q Nf6 b7 Kb6 Ng5 Ne2 Ba1 Nc3 Nf7 Bb2 Qb4+ Nb5 Na3 Rh7 Qf3 Rg7 Qa8 Rg6 b8B Bb7 Qf4 Rg7 Ke1 d2+ Ke2 d1N Kf3 Nc3 Bc4 d3 Ba2 d4 Rh3 Qe7 Be5 d2 c7 d3 Ke3 d1B c8N+ Kc6 Qb8 d2 Nc4 Be2 N8d6 d1Q Bh7 Bf1 Bg6 Qc7 Qh8 Nfg8 Bf6 Qb3 Nce5+ Kb6 Bh5 Bd3 Bg6 Nd5+ Kf3 Nf5 Kg4 Nfh6+ Kg5 Rh7 Bh5 Bf1 Kg6 Bc4 Nd8 Rd7 N8f7 Nde7+ Kg7 Be2 Kf8 Bf1 Rg3 h3 Rg7 Bd3 Rh7 Bc4 Nf5 Rd2 Bg6 Be6 N5d6 Bec8 Bf5 Ba6 Bd7 Bcb7 Be8
4NnN1/1rqN2KB/3pN2r/1R1n1PQ1/n5qR/2k1p1pQ/5Q1r/1R1b2n1 b - - 0 1 legal: proof: d4 b5 e4 c5 f4 cxd4 a4 f5 axb5 fxe4 g3 Qc7 Ra6 Qb6 Ra1 Qd8 Bd2 h6 f5 e6 Bc1 Bd6 Bg5 Bf4 gxf4 hxg5 Kd2 Kf7 b4 Kf6 c4 a5 h4 e3+ Kd3 d6 Ke4 g6 c5 a4 h5 d3 h6 d2 h7 e5 b6 e2 b5 e1N c6 g4 b7 g5 b6 g3 c7 a3 Nf3 g4 Rh4 a2 Bd3 g2 Nc3 g1Q Qc1 d1N Ng5 g3 Nb5 Ra7 Ne6 Nd7 b8N Nf3 b7 Nb2 Rb1 a1R Bc2 Nf8 Nd7+ Ke7 b8R Qd1 Bd3 Rb7 f6+ Kf7 Kf5 e4 Qc5 Ng1 Kg5 Ne7 Kh6 e3 Qg5 Qg4 Bc2 Rg8 h8Q Na4 Be4 Ra2 Bh7 Ra7 Rb7 Rh2 Rb8 Ba6 c8N Rb7 Nbc7 Nd5 Ne7 Be2 Ne8 Rg7 Ng8 Bd1 Bd3 Qc7 Qh7 Ra7 R8b5 Rb7 Qhf5 Qe2 Qh3 Qg4 Ne7 Rg8 Bh7 Rh8 Ng8 Ng6 Ne7 Rg8 Nd4 Rg7 Ndf5 Ke6 f7 Rg8 f8Q Rg7 Ng8 Rf7 Qg7 Nf8 Qb2 Rf6+ Kg7 Rh6 Qf2 Nf6 R5b3 Kd5 Nd4+ Kc4 f5 Nd5 Rb5 Kc3 Ne6
qbR2RQ1/1n2Q1K1/1p3N1p/3P4/b5bn/1NQrRb2/B3n2p/q2RN2k b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 g5 b4 axb4 f4 Nc6 h4 gxh4 f5 Nf6 g5 Ng4 g6 Nb8 Bb2 Nf6 Bd4 Ng8 Bf6 Ra6 g7 e5 Bg5 Rg6 Bf4 exf4 fxg6 Qd7 Nc3 Qd6 Nb1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 f5+ Kf3 b6 a4 h6 e4 b3 a5 h3 a6 b2 a7 h2 a8R c4 Bg2 c3 Qf1 c2 Nc3 c1N R1a4 b1Q Nce2 Nc6 Rc4 Qa1 Qe1 Na5 Qc3 Ne7 g8N Nb7 g7 Ng6 Nf6 Rh7 g8Q Rd7 Ra3 Be7 Rb3 Qe8 Rc7 Bd8 Rc5 Bc7 Ra3 Bb8 e5+ Ke7 e6 Kd6 e7 Nh4+ Kf2 f3 Ke3 f2 Kf4 f1B Nf3 Qf8 e8R Rd8 Bh3 Bg2 Ne1 Bf3 Bf1 Bd7 Rc8 Ba4 Bg2 Bg4 Be4 Rd7 Bb1 Rd8 Ba2 Rd7 Ke3 f4+ Ke4 f3 Rg1 f2 Rb3 Qg7 Rf8 f1B Ra3 Qh8 Rh1 Nd3 Nc1 Nf4 Nb3 Bfe2 Rg1 Bd1 Rh1 Ne2 Rf1 Ng2 Rh1 Bf3+ Kf5 Rd8 Kg6 Nh4+ Kf7 Re8 Rg1 Re3 Rf1 Rd3 Ng2 Bc2 Rd1 Bd7 Ne1 Bdg4 Nd2 Ba4 Nb3 Qh7+ Qg7 Qe4 Qg8 Qe3 Kg7 Qd2 Qc4 Qa5 Qc3 Qa8 Qh8 Ke7 d6+ Ke6 d7 Kf5 d8Q Kf4 d5 Kg3 Qg8 Kf2 Qe7 Kg1 Qcb4 Kh1 Qc3 Bb5 Ra4 Bbd7 Re4 Ba4 Re3
5nn1/p3n1kq/3B1r1N/P1p3Q1/3q1Q2/2N1BQrr/K4BNp/b1B1R2r b - - 0 1 legal: proof: c4 g5 h4 gxh4 a4 c5 b4 d6 bxc5 Bh6 c6 Qa5 c5 Be6 Ra2 Qd8 c7 Bc8 c6 Bf8 e4 f5 d4 Bh6 d5 Kf7 Bd3 Be3 Rc2 Bh6 Rc5 dxc5 Bc2 Bf8 d6 Be6 Bd3 Bd5 exd5 Ke8 Be4 fxe4 Kd2 Kf7 Kc2 h5 Kb2 e5 c8Q b5 f4 b4 g4 h3 d7 b3 d6 e3 g5 h2 g6+ Kf6 c7 e4 g7 e2 f5 e1R a5 h4 Nc3 e3 Nh3 e2 Nf4 h3 Ng2 Nc6 Qb8 Rf1 c8Q e1N Qf3 Nce7 Ka3 b2 Ka2 Kf7 f6 Nd3 Be3 Kg6 f7 Nf4 Qcb7 b1R Qbd5 Ne6 Qg5+ Kh7 Rg1 h1Q Qb4 Rb8 Qbf4 R8b3 Bf2 h2 Be3 Qc7 d8B Rbc1 d7 Qd6 Bc7 Qd4 d8B Rcb1 Nh4 Qg2+ Bf2 Qh3 Bd6 Qf5 Ng2 Qfe4 Qge5 Kg6 Be3 Rh3 Qeg5+ Kh7 Qe2 Rff3 Re1 Rb6 Bf2 Rfg3 Qef3 Qed3 Re2 Rh1 Re1 Nf6 g8N Bg7 Nh6 Nfg8 f8B Bf6 Bg7 Nf8 Qgh5 Be5 Bf6 Q3e4 Bg5 Kg7 Be3 Qh7 Bh4 Rg5 Bhf2 Rgg3 Qhh4 Neg6 Bg5 N6e7 Bc1 Bf6 Qf5 Ra6 Bge3 Rc6 Q5f4 Be5 Bb8 Rf6 Qhg5+ Kh8 Nb5 Qd5+ Qc4 Ba1 Nc3 Qd8 Qcf4 Qd4 Qge5 Kg7 Bd6 Qd1 Qef5 Qd4 Q5g5+
1B1KR3/b1Pn4/p3Q3/1RN2Q2/3BB3/1qnRprn1/1kQ1pr1R/1rn1r3 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Ng8 Nd2 h6 Ndf3 Bb7 Ng5 hxg5 f6 Bd5 Ne2 Be6 Ng1 Bf5 gxf5 g4 Kd2 Kf7 b4 g5 c4 e5 h4 d5 b6 a6 b5 e3+ Kd3 e2 b7 g3 c5 g2 b6 g4 h5 g3 h6 Ne7 h7 Nd7 c6 Qb8 Nf3 g1N c7 g2 Ra3 Bg7 Bg5 Rf8 h8R Bh6 Bc1 Be3 Nd2 Bf2 R1h2 e4+ Kc2 d3+ Kc3 d4+ Kc4 Be3 Nb3 d2 Bb2 d3 Bd4 Nd5 R8h5 Nc3 Nc5 Na2 Kd5 Nc1 Kc6 Bf2 Qe1 d1N Rg5 Nc3 Qd1 d2 Rb3 Nf3 Rb5 g1R Bg2 Re1 Rg3 Ng5 Rd3 Qa7 b8R Qb7+ Kd6 Be3 Re8 Qb8 Qa4 d1R b7 Bf2 Rg3 Rd3 Qd1 Rf3 Rgh3 Qa7 b8B Qb7 Rg3 Bg1 Bh1 Rf2 Rd3 Rf3 Ra5 Qb3 Rb5 Be3 Kc6 Rf2 Kb7 Ra7+ Kc8 Rb7 Kd8 Rb6 Be5 Bd4 Bg2 e3 Be4 Rb7 Na4 Ba7 Nc5 Rh8 Bd4 Rh3 Re6 Rhf3 Re5 Kg8 f7+ Kg7 Re6+ Ne5 Re8 Kf6 Bd5 Nge4 f8Q+ Kg5 f6 Kf5 f7 Nd7 Qe7 Ng3 Qd6 Rb6 Ba8 Rb7 Ne6+ Ke4 f8Q Rg2 Qb6 Rgf2 Nc5+ Kd5 Qf5+ Kc4 Qd6 Rb6 Be4 Rb7 Ra5 Kb4 Rb5+ Ka3 Qde6 Kb2 Ra5 Rb4 Rb5 Ra4 Qfd5 Ra1 Qdf5 Rb1 Qc2+
Bb2NK1k/3QpP1q/2N4p/b7/qQ1N2p1/Q1RN4/r2pR1qn/n2r3R b - - 0 1 legal: proof: d4 b5 h4 g5 g4 gxh4 a4 c5 axb5 d5 e4 f6 g5 Be6 g6 cxd4 Bg5 fxg5 Ra3 d3 Ra4 d4 Ra1 Bd5 exd5 Qd7 Bh3 Qc7 Bf1 Qd8 Kd2 a5 b4 h3 f4 h2 c4 h6 c5 a4 b6 g4 g7 Kf7 f5 a3 f6 a2 d6 Qc8 c6 Qb7 d7 Ra4 d8Q Qc7 b7 Ra5 b5 Na6 b8N Qd7 b6 Qd6 c7 Qg3 c8R Nb4 b7 Nc2 Rc3 Qg2+ Ne2 Qe4 Qc1 Qh7 Na3 Ra7 Rg1 h1Q Nc6 Qg2 b8Q Ra4 Rb1 a1B Nb5 Ra2 Qa3 Kg6 f7 Nf6 g8N Kg7 Qbd6 Nd5 Rh1 Nde3 Nf6 Bb2 Q6d7 Na1 Qb8 Rg8 Rh2 Kh8 Ne8 Bg7 Qbd6 Bf6 Qdb4 Be5 Rh1 Bb8 Re1 Qd5 Nf4 Qg2+ Re2 Rg6 Rf2 Rd6 Be2 Rd5 Bf3 Rd6 Re2 Nf1+ Kd1 d2 Nd3 Nh2 Be4 Nb3 Kc2 Ba1+ Nb2 Rd5 Kd3 d1Q+ Kc4 d3 Nbd4 Rd6 Kb5 Qc2 Nc4 Bb2 N4e5 Na1 Kc5 Qa4 Bf3 d2 Nd3 Re6 Kb6 Re3 Kb7 Re6 Kc8 Rf6 Be4 Rf1 Kd8 Rg1 Ng7 Rd1 Ke8 Nf1 Kf8 Nh2 Rc5 Bc3 Ne8 Ba7 Na5 Bb8 Ba8 Ba7 Nac6 Bb8 Qb1 Bb4 Rc3 Ba5 Qbb4
rQ1R1RnK/1pb4p/1p1R4/5RB1/qpnB2Q1/5Pn1/N1q1b3/1QBr1k2 b - - 0 1 legal: proof: e4 f5 exf5 d5 h4 g5 c4 Kf7 b4 Ke8 c5 Na6 Na3 Nb8 Nc4 c6 b5 cxb5 Nb6 axb6 Bc4 dxc4 hxg5 Qd6 Qg4 Qd4 Qd1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 b4 a4 c3 g4 c2 d4 Qe8 g6+ Kf6 a5 Nh6 d5 Nc6 f3 Nb8 g5+ Kg7 d6 Qd8 c6 Ra7 c7 Ng8 a6 Ra8 d7 Qf6 d8B Nc6 a7 Be6 c8Q Na5 Rh5 Rb8 a8R Nc4 Ne2 Be7 Nc3 Bd6 Na2 Bc7 Rh6 Qf8 Qf1 Qe8 f6+ Kf8 f7 Kg7 Ra5 Ra8 Qb8 Qa4 Rb5 Bd5+ Kf5 e4 Rb1 e3 Rb3 e2 Rd3 e1Q Rd1 Nf6 f8B+ Kg8 g7 Kf7 g8R Qe2 Rhg6 Bc6 Ra5 Bb5 Bg7 Qf2 Re8 Ng8 Rgd6 Ba6 Bd4 Qe2 Ba3 c1N Rae5 Kg7 g6 Kh6 g7+ Kh5 Bg5 Qec2+ Rd3 Ne2 Qb1 Bb5 Rf8 Ng3+ Ke6 Ba6 Kf7 Bb5 Bac1 Ba6 Bh6+ Kh4 Bhg5+ Kh3 Rf5 Kg2 Rd2+ Kf1 Rd3 Ne7 g8Q Bb5 Kg7 Ba6 Rc8 Bb5 Qe6 Rd8 Qg6 Ng8 Kh8 Na5 Rd2 Be2 Qh5 Rd7 Qg4 Nc4 Rcf8 Re7 Bf2 Re4 R2d5 Rd4 Bg1 Rd1 Bd4 Qa7 Rdd8 Qaa4 R5d6
1r1R4/n1QNK2p/1RB1n3/1PB5/rpqr4/5b1Q/pkBRBp1b/Q3r3 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 cxd5 e5 h4 exf4 Na3 gxh4 Nc2 Qc7 axb5 Kd7 b6 Qd8 b5 Ke8 Nb4 cxb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 d4 Kc3 e4 a5 d6 f3 d5 f4 d7 a4 Ke6 a3 b7 a2 e5 f2 g5 f3 d6 h3 g6 h2 g7 Qa5 Be3 Qc7 Bc5 Ra4 Be2 Na6 b8Q Qa7 Qc7 Nf6 g8B Bb7 d8R f1R d7 f2 Nf3 Kb2 Qd3 Nb8 Rd1 Bg7 Ke7 Nh5 e6 Re1 Ne5 Nf4 Qh3 Bf3 Bf7 Qa8 Bg6 Qd5 Bc2 Qc4 Rd2 Rd1 Rg1 h1R Rg6 Rhf1 Rf8 Rg8 d8Q Rfe1 Qdd7 Rh8 Rd8 Rg8 Qd3 Bh6 Nd7 Nc6+ Kd6 Rf8 e7 Ne6 e8B Na7 Ke7 Bf4 Qd5 Bh2 Rh6 Ng5 Rb6 Ne6 Qdh5 Rg1 Qd5 Rg4 Qdh5 Rd4 Q5g4 Rh1 Qg1 Rh8 Qd1 Re1 Bf7 Ng7 Re8 Nh5 Bd5 Nf4 Bc6 Ne6 Rc8 Rf8 Ra8 Rf5 Rh8 Rf8 Rg8 Rc8 Rd8 Rb8 Qa1+
3N1N1N/1B1pb1K1/5pb1/1Q3r2/PQ1Bp1n1/bpn2b2/1N2qk2/RQb4B b - - 0 1 illegal: No proof kernel
K3R1k1/1Qr1q1P1/3pnQbr/1R3p2/Nr1N1b2/p2N4/p3R3/1B2QNbr b - - 0 1 illegal: No possible last move, all moves rejected
3RQ2Q/2n1QBp1/1p1Br2n/8/p1K1Ppbk/Q2r1bR1/1N2Rn2/1b3Bb1 b - - 0 1 legal: proof: f4 e5 g4 exf4 d4 h5 gxh5 b6 c4 Ke7 a4 Nf6 b4 Ne8 b5 Nf6 c5 Ng8 a5 Ke8 d5 Qf6 Na3 Qh6 Nc4 Qc6 dxc6 bxa5 b6 a4 b7 Na6 Nb6 cxb6 Bb2 Nb8 Ba3 Rh7 Bc1 Rh8 Kd2 Ke7 Kd3 Kf6 e4 Kg5 h6 a5 h3 f5 c7 d5 h7 d4 c6 a3 Qa4 a2 Ne2 Nh6 Qa3 a4 Rh2 Bc5 Kc4 d3 Nc3 d2 Re2 f3 Nd1 f4 Nb2 Rd8 h8Q d1B Qe8 Bg4 c8Q f2 c7 Na6 b8R Rd3 Qcd7 Kh4 c8B Nc7 Bd2 Bc2 Bb4 Bb1 Qd6 Ra5 Be6 Bd4 Ra8 Re5 Bf7 Re6 Rd8 Bc5 Qe5 Be3 Bd6 Bf3 Bg2 f1B Qec5 Bg1 Qcb4 Kg3 h4 Bg4 h5 Kh4 Bh3 Bg2 Qc5 B2f3 Bf1 Bc2 Rc1 Bb1 Rc3 a1N Qe5 Nc2 Qg5+ Kg3 Qge7 Ne1 Rb3 Re3 Rc3 Nd3 Rb3 Nf2 Rc3 Ng8 h6 Rd3 h7 Nh6 h8Q Rd2 Rd3 Rd1 Rd5 Rd3 Rg5 Kh4 Q7f8 Bh3 Rg3 Bhg4 Qfe7+
Q5b1/1Kb1k3/1PBpp2B/3npp1p/RN3RR1/1Q6/2Bq2qQ/1r2Rrn1 b - - 0 1 legal: proof: e4 b5 d4 c5 f4 cxd4 a4 g6 axb5 f6 e5 fxe5 f5 Bb7 Kd2 Ba6 Ke1 Bc8 g4 Nc6 h4 Bh6 g5 Nb8 h5 Bb7 f6 Bg7 Nc3 Bf8 Nce2 Ba6 Ng3 Bc8 Nf5 gxf5 Rh2 Qb6 Rh1 Qe6 Rb1 Qf7 Ra1 Qg6 hxg6 Bh6 Be2 Bg7 Bf1 Bf8 Ke2 a5 Kd3 h5 Kc4 a4 Kd5 a3 c4 d6 b4 d3 f7+ Kd7 g7 a2 g6 d2 b6 Ba6 c5 Rh6 b7 Kd8 c6 Ra7 b5 Rh8 c7+ Kd7 c8R Nh6 g8B Bg7 f8Q Rh7 Qb3 d1Q+ Bd3 Qd2 Nh3 Ng4 Nf4 Nf2 Re1 Nc6 b8Q Bf6 g7 Nh3 b6 Ng1 Qf7 Rh6 Qc2 Rg6 Qa8 Rg2 Qb3 Rf2 Qg6 Bb5 Qg2 Rf1 Qh2 Ra4 Bf7 Rb4 g8R Bh4 Rg4 Ba4 Qc2 Rb1 Qb3 Qg2+ Be4 Bf6 Nd3 Nb4+ Kc4 e6 Bh6 Bd8 Be8+ Ke7 B8c6 Nd5 Nb4 Bc7 Bc2 Qd2 Rf4 Qg2 Rg8 Qd2 Bb7 Be8 Rgg4 Bf7 Kb5 Bg8 Kc6 Rd1 Rb1 a1Q Rc1 Qa7 Ra1 Rb1 Ra4 Qb8 Bc8 Qa7 Bd7 Qa6 Be8 Qae2 Kb7 Qg2 Bc6
BK1Nk3/p1Q1rQ1q/1Pq1p2p/p2p2qR/1R1b2R1/7N/3N1nr1/1Q4Qb b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 f5 exf5 g5 a5 b6 f6 bxa5 g4 Qb6 f4 Bh6 h4 Kd8 f5 Ke8 Bf4 gxf4 g5 Qd8 h5 Bf8 Ra2 Nc6 Ra4 Ne5 Ra1 Ng6 hxg6 Bh6 Nf3 Bg7 Ng1 Bf8 Kf2 d3 Kf3 h6 Ke4 f3 Kd5 d6 Kc6 d2 b4 f2 c4 Bg7 c5 Rh7 b5 Bh8 g7 Ba6 b6 Be2 Kb7 Kd7 c6+ Ke8 g6 Bd3 c7 Rc8 f7+ Kd7 f8Q Be2 f6 Bb5 f7 Bc4 Nh3 Nf6 g8R Ne4 Ra4 Bd4 Bg2 f1Q g7 Nf2 Rb4 Qd3 Qc2 d1Q Nd2 Qg6 Qb1 Qdc2 Bd5 Bf1 Bf3 Bg2 Qe8+ Ke6 f8N+ Kf6 Rh2 Bh1 Ne6 Qc5 Qd7 Kf7 Bc6 Ra8 c8Q d5 Qdc7 Qc4 Qg3 Qg5 Qgg1 Qd7+ Qc7 Rf8 Nd8+ Ke8 Kb8 e6 Ba8 Qcc6 Rh8 Qf7 g8Q Qfd7 Qg7 Rg8 Qf6 Rf7 Rh7 Re7 Rg7 Qe3 Rg4 Rg5 Rh4 Rg2 Rg4 Qe5 Ng5 Qf5 Rh5 Qh7 Qg7 Qc1 Nh3 Qdc6 Nb3 Qf4 Nd2 Qg5 Qf7+
R4r1Q/1NKppq2/2QR2QB/1r4N1/2p1P1p1/3nb1pr/3p4/Q1N1Rqk1 b - - 0 1 legal: proof: h4 g5 b4 f6 c4 c6 d4 Qb6 a4 Na6 h5 Nc7 c5 Nd5 b5 Qd8 g4 Nf4 d5 Ng6 hxg6 f5 Bg2 fxg4 b6 cxd5 c6 d4 c7 Rb8 Bf4 Ra8 Bc6 bxc6 Be3 Ba6 Bc1 Bb5 axb5 Qc8 Nc3 Qb8 Nb1 Qd8 Kd2 a5 Kd3 h5 Kc4 c5 c8N g3 f4 h4 e4 d3 b7 g4 b8Q h3 f5 h2 b6 a4 Kb5 a3 b7 a2 f6 c4 g7 Kf7 Nc3 Ke6 f7 Nf6 g8Q Nh5 Nf3 Nf4 Re1 h1Q Qc7 Qe8 Kb6 Bh6 f8R+ Qf7 b8Q Qf1 Nd6 Kf6 Rb1 a1R Qc6 R1a5 Ng5 Ke5 Kc7 Kd4 Qg6 Rb5 Na2 Rh7 Nb7 d2 Bb2+ Kd3 Bg7 Rh8 Rc8 Rh7 Bf8 Kd4 Nc1 Nd3 Ra1 Rh8 Ra6 Rh7 Ne2+ Ke3 Qa1 Kf2 Nc1 Kg1 Rb6 Bg7 Ra6 Bd4 Bh6 Be3 Rf8 Qe8 Rf6 Qf7 Rd6 Rh8 Qbg8 Rf8 Ra8 Rh7 Bg7 Rh4 Bh6 Rh3 Qgh8
2B5/2k2prN/1Br2pnR/Q2B4/Q3K2p/pn4Pp/2Nqpp1B/N1Qb4 b - - 0 1 illegal: Other
4k3/2pp2Q1/B1PB4/p2Q1pK1/R1pp2R1/q2R2r1/pB2n3/N1rQ1bRr b - - 0 1 illegal: Other
1qQ3Q1/5n2/1Q2R1Qn/2bNrpb1/3rkPB1/2Nqnb2/3qq3/1Rq1NRK1 b - - 0 1 legal: proof: d4 b5 Kd2 g5 a4 e5 axb5 exd4 h4 gxh4 Ra6 c5 Ra2 c4 Ra1 c3+ Kd3 Bb4 Bg5 Bf8 Bd2 cxd2 f4 Ke7 e4 Ke6 Ke2 h5 Kf2 d5 b4 a5 g4 f5 c4 h3 b6 h4 g5 a4 c5 h2 e5 h3 c6 a3 b5 d3 b7 d4 g6 Kd5 b6 a2 g7 Nh6 g8N Ra4 c7 Nd7 b8Q Bb7 c8Q Bc5 e6 Ne5 Qa8 Nef7 Qg4 d1N+ Kg3 d2 e7 d3 Nf3 Ne3 Kf2 d1Q e8R d2 Qg6 Qc2 Re4 d1Q+ Nbd2 Qb2 Rb1 a1B Rg1 h1Q Qcb8 h2 Be2 Qb5 Qa5 Bf6 Qaa8 Bc6 b7 Bg5 Re7 Qc8 Ne4 Qbd3 Qa5 Q1d2 Ngf6+ Kc4 Qac7 Rf8 Rgd1 Re8 Nc3 Be4 Re5 Bc6 Qb6 Qf1+ Kg3 Qc7 Qa8 h1Q b8Q Re6 Qbg8 Bd5 Qab7 Qb8 Qbc8 Be4 Nfd5 Qh5 Nh4 Kd4 Ng2 Qhh1 Bh5 Bf3 Bg4 Qfe2 Rdc1 Qhd1 Kh2 Q1c2 Rf1 Qcc1 Kg1 Re8 Re6 Rb4 Rd6 Re5 Ne1 Rc4 Na4 Ke4 Re6 Rd4 Nac3+
N2qk3/QBr3pN/rr1b1rPb/b3BB1n/Q1b4K/1N5b/7Q/Rn1r2Q1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 e5 d4 cxd4 f4 exf4 g5 Qa5 Ra3 Qb6 Rg3 Qd8 Rg4 hxg4 Kf2 a5 h4 d5 c4 f5 e4 g3+ Kg2 a4 Kh3 d3 e5 f3 b6 d4 c5 f4+ e6 a3 b7 g2 b5 f2 b6 d2 g6 d3 c6 a2 c7 a1B h5 f3 h6 Ra6 h7 Nf6 Qa4+ Nbd7 b8Q d1R e7 d2 b7 Nd5 Qa7 Bc3 b8Q Ba5 Qbb6 Nc3 Bd3 f1B Kh4 f2 Bf5 Bc4 Bb2 f1R Nh3 g1B Ng5 Be3 Qd4 Rg8 h8Q Rc1 Nh7 d1R Nd2 Nb1 Nb3 Bh6 Qg1 Rb6 Be5 Rc3 Qa3 Nf6 Qa4+ Bd7 c8B Nh5 Bb7 Rff3 Bg4 Rff6 Bf5 Ra6 Rh2 Rfb6 Ra2 Rf3 Ra1 Rf4+ Bg4 Rff6 Bf5 Qb8 Qg2 Bhd2 Bd4 Nf4 Ng5 Qd6 Kg4 Qd5 Qh4 Nh5 Nh7 Bh6 Qg1 Rh8 Qb4 Be6 Qhf2 Kd7 e8N Nd2 Be5 Nb1 Kh4 Kd8 Be4 Bh3 Qe2 Qd7 Qed2 Bd6 Nc7 Re8 Qb2 Re7 Na8 Ke8 Qbh2 Qd8 Bf5 Rc7 Qa4+
5KN1/2QkNbnr/1n4p1/4r1q1/2qrNRP1/2BN1rb1/2b1B1b1/1QbQB3 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 e5 d4 cxd4 f4 exf4 Ra3 h4 Rg3 hxg3 Kd2 f5 Kd3 d5 h4 a5 c4 a4 e4 f3 e5 g2 h5 f4 e6 f2 c5 a3 h6 g6 b6 f3 c6 a2 c7 a1Q e7 Rh7 b5 Qa6 b7 Nf6 Bd2 Nbd7 b8N Nh5 Ne2 g1B Nc6 Nb6 Nf4 Bh2 Ba5 Bg3 Nd2 Kd7 e8N Ba3 Be2 f1B Ne4 f2 Be1 Bg2 Ne7 Ng7 Rg1 Bc1 Rf1 Rh8 h7 Ra7 Ng8 Qg5 Ne7 Rf8 h8B Rf5 Qa4 Re5 Qd1 Nc4 b6 Rb7 Kc2 d3+ Kc3 d2 Kb4 d4 Nd3 Ra7 b7 Nb6 b8Q Qa2 Qc2 d1R Qb7 Rd2 Qd1 Qc2 Qb8 Ba6 Qb7 Bc4 Qb8 Bf7 N8f6+ Ke6 Nfg8 Kd7 Qa8 Rb7 Qa1 Ra7 Qb1 Rb7 Rg1 f1R Rh1 Rf3 Rf1 Ke6 c8Q+ Rd7 Nb2 d3 Qc5 Qc3+ Kb5 Rd4 Kc6 Qc4 Kc7 Rc2 Kc6 d2 Nd3 Re3 Rf4 Rf3 Kb7 Ra2 Qc7 Ra7+ Kb8 Nd7+ Kc8 Rb7 Qdb3 d1B Kd8 Ra7 Q3c2 Rb7 Qd2 Bc2 Qd1 Nb6+ Nd6 Nf5 Bg7 Ree3 Bh8 Rd5 Bhc3 Be8 Qb8 Rd4 Qa7 Re5 Qb8 Qh6 Nc8 Rh7 Nce7 Qg5 Qc7 Bf7 Nh6 Bg8 Ke8 Ng7+ Kf8 Bf7 Nhg8 Bh4 Qc5 Bg3 Ne4 Kd7 Qc7+
b3bQBn/1nrk4/Kp4Rb/1Q1R2n1/BQq1b1n1/2b2r2/QP1R1N1B/7b b - - 0 1 illegal: No possible last move
1Q1R1b1q/r1q1B2B/q4Q1r/RbN1n1k1/2n1pq2/1Bq1P3/R3p1K1/1Q2b1B1 b - - 0 1 illegal: No possible last move, all moves rejected
2Q1N1nQ/6r1/N2rBR1r/qrp1R2n/N1p5/q1P1K1bb/2r3kQ/2R1n2N b - - 0 1 illegal: No possible last move
Q1KQb2R/1Q3pkb/pr2Bq2/2RR4/P2bq2B/4b3/r1b1nQB1/2q3nN b - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 Nc3 h6 Nd5 h5 bxc5 gxf4 g5 Bg4 Ne3 Bc8 Ng4 hxg4 Kf2 b5 d4 e5 c4 f3 Ke3 g3 h4 g2 h5 f2 c6 b4 a3 b3 c5 b2 c7 b1B c6 Bg7 g6 Kf8 d5 Nh6 d6 Bf5 c8Q Nd7 c7 Bc2 Ne2 g1B Qb7 Qf6 c8B a6 a4 Rb8 Bg2 f1B+ Kd2 e3+ Kc3 e4+ Kc4 Kg8 Kd5 Ne5 d7 Nf3 Ng3 e2 Qd4 e1Q Qf2 Bb5 d8Q+ Be8 Be6 e3 Kd6 e2 Bg5 Qc1 Kc7 e1Q Bh4 Qe4 Rh3 Rh7 Nh1 Bh8 g7 Bg6 Qbd5 Nf5 Qb7 N5d4 Ra3 Bf5 Rc3 Ne2 Rc5 Rh6 Rg3 Bh7 Rgg5 Rg6 Rgd5 Rg5 Qb4 Rb6 h6 Rh5 Kc8 Re5 Qf1 Be3 Qf2 Nfg1 Qb2 Rb3 Qb1 Ra3 Qb7 Ra2 Bg4 Re6 Bf5 Bg6 Bg4 Rb6 Be6 Kh7 g8R Bf5 Rf8 Kg6 h7 Kh6 Rg8 Bg7 h8Q+ Bh7 Kc7 Qe7+ Kc8 Bgd4 Qe5 Qf6 Rh8 Kg6 Qeb8 Kg7 Q8a8
2Nq1B2/2pQ1n1b/Nb1nqrQ1/r1P5/nQ6/1RRN2p1/2R2r1R/K1b1rk2 b - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 d5 Nf3 dxe4 Bd3 f5 Be2 g3 Ng1 g2 Bg4 fxg4 h4 Kd7 b4 Kd6 d4 Kd5 Kd2 Kc4 f4 a5 d5 g5 d6 e5 d7 a4 f5 a3 h5 a2 h6 g3 h7 g4 f6 Ra5 f7 Na6 b6 Bc5 f8Q Nh6 b5 Nf5 b7 Bb6 b8N Nc5 Rh2 Na4 Nc3 Nd6 Ba3 e3+ Kc1 e4 Nd5 e2 Ne7 e1R Nh3 g1N Na6 g2 Nf2 e3 Nd3 e2 c3 Rg8 h8Q g3 Qh7 Nh3 Qg6 g1R Bb4 Bb7 Nc8 Rgf1 Rb1 a1B Rb3 Rf5 Kb1 Be4 Rb2 Rf4 Rc2 Bb2 Ka2 Ba3 Ka1 Bc1 Qd2 Ng5 Qfg7 Ne8 Bf8 Rf6 Qe7 Nf7 Qb4+ Kd5 c4+ Kd4 Qd1 Ke3 c5 Ned6 Rc3 Rh8 Rc2 Rh5 Rc3 Rhf5 Rc2 Qe7 d8R Rf2 Rd7 Qd8 Rc3 Ba7 b6 Bf5 b7 Bb6 b8R Kf3 Rh7 Kg2 Rh2+ Kf1 Rc2 Nb7 Rd4 Nbd6 Rdc4 Be4 R4c3 Bf5 Qg5 Bh7 Qdd2 Rd1 Qgg4 e1Q Qg6 Qe6 Rb7 Re1 Qd1 Qe3 Qdg4 Qe5 Qd7 Qe6 Qb1 Ba7 Rbb3 Bb6 Qb2 Nh8 Qa3 Nhf7 Qb4
2N4B/1bBQ3Q/3q1pp1/5n2/2nbrBQ1/Nrq1bNP1/B1k3K1/Rrq1b3 b - - 0 1 legal: proof: b4 c5 f4 e5 d4 exf4 g3 cxd4 a4 b5 axb5 h5 Ra3 h4 Rf3 h3 Rf2 Bd6 Rg2 hxg2 Na3 Be7 Nb1 Bf8 Kf2 Ke7 c4 Ke6 e4 Ke5 h4 a5 c5 d5 b6 d3 h5 Kd4 b7 f6 h6 d2 h7 f3 b5 g6 e5 a4 b6 a3 e6 a2 c6 a1B c7 Ra3 e7 Nc6 b8N Nh6 e8Q Bb7 c8Q Qc7 Bd3 Rb3 Rh5 Na5 Bc4 Bb4 Qh3 Nf5 Qc6 Re8 h8B Re4 Na3 Kc3 Qe8 d4 Qd7 d3 Nc6 Bb2 Bd5 Nc4 Ne7 Ba1 Qe2 d1Q Nc8 d2 Nb5+ Kc2 Qg4 Qe5 Rh1 Qc3 Qe3 Bb2 Qh6 Ba1 Qhh7 Ba5 Ba3 Qc1 Bd6 d1Q Bf4 Bb2 Bf7 Qd6 Bd5 Ba8 b7 Bb4 b8B Bb7 Nh3 Ba1 Rd1 g1B+ Kf1 f2 Bc7 Ba5 Kg2 f1R Ng5 Be3 Bg8 Qcd4 Be6 Be1 Nf3 Qd3 Bg8 Bad4 Bf7 Qc3 Bg8 Qca3 Ra1 Qc1 Ra4 Ra3 Ba5 Nd2 Kh3 Qd1 Nh2 B1f2 Nf3 Qb1 Bb6 Rd1 Bc4 Be1 Kg2 Qbb2 Ra7 Rb1 Bc7 Qc1 Be6 Rab3 Bd5 Rb4 Ra1 R4b2 Ba2 Nc4 Qhh3 Rb4 Qhh7 R4b3 Na3+
3r1b1N/1p1R4/R3BqB1/Kn2R1r1/1Pq3p1/1k3QQ1/2bqr2n/B1bb2QR b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 f5 a4 Nc3 e6 Nb5 exf5 c4 d5 cxd5 f4 Nd4 Bf5 Nb3 axb3 Bg2 Bd7 Bf1 Bc8 e4 Ke7 d4 Kd6 Kd2 f5 Kc3 g5 a4 c5 h4 g3 h5 f3 h6 g2 h7 f2 e5+ Kc7 e6 Kd6 e7 c4 e8B f4 a5 f3 a6 b2 a7 b1B Ra5 Bh6 Bb2 Bg4 Ne2 g1R Nf4 Nc6 Ba1 Bf8 Bh3 f1Q Ng6 f2 Qf3 Nf6 Rc5 Rb8 a8R Bc2 Ra6 Qe2 Kb2 f1Q Ka3 c3 Bf7 Rg8 h8Q Qd2 Qg7 Qc4 Nh8 Rg2 Bg6 Re2 Rb5 Bh5 Be6 Ng4 Rc5 Qf6 Rb5 Bb1 Ka4 c2 Rc5 c1B Qg3+ Qe5 Qf7 Ra8 Qff3 Nh2 Qg1 Rd8 Qfg3 Ke7 d6+ Kf6 d5 Nd4 d7 Bc2+ Ka5 Nb5 d6 Bf3 Be8 g4 Rd5 Rg5 Bg6 Re4 Rc5 Bfd1 Rd5 Re2 Rc5 Rb8 d8R Ra8 Rd7 Rd8 Re7 Qed4 d7 Qe5 Rc7 Qb2 Qf3+ Ke5 Qgg3+ Kd4 Rc5 Re3 Re5 Kc3 Qg1 Kb3 Qfg3 Ra8 d8Q Qbd4 Qc7 Rd8 Rd7 Qd6 Q3f2 Re2 Qc6 Qe7 Qd5 Qf6 Qfg3+ Qc3 Qdf3 Qd3 Bc3 Qd2 Ba1+
n5n1/2B2NQK/QnR1Q1B1/1rb5/2BNr1p1/6nb/1nkp2Pb/n1N1Q1q1 b - - 0 1 illegal: No proof kernel
2bRr1r1/2r1Rn1p/3RN1Br/bK4Qn/1Q1p4/2q1n1rN/Q2P4/1Q1k1r1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ba3 exf4 axb5 c5 b6 Nh6 b5 Ng8 Bb4 cxb4 g4 Ke7 c4 Kd6 e4 Kc5 Ke2 Kd4 e5 d5 e6 f5 b7 a5 e7 f3+ Kf2 h3 e8R a4 g5 f4 b6 b3 g6 a3 c5 a2 g7 h2 c6 b2 c7 Nd7 b8Q Qf6 b7 Nh6 g8Q Bb4 Nh3 Ba5 Re7 Nf7 Qg5 Rg8 Nc3 b1R Ne4 Rb3 Qb1 Qg7 Bg2 Nf6 Ng3 Nh5 Ke1 f2+ Ke2 f1N Be4 Qh8 Bg6 Ne3 Rc1 h1R Rc6 Rc1 Rd6 Rcc3 Nh1 f3+ Ke1 f2+ Ke2 f1R Rd8 Bd7 c8Q Rc7 Qa7+ Kc4 b8N Qc3 Qcb7 d4 Na6 Bc8 Nc5 Rb6 Ne6 Rg1 Qbf5 Kb3 Re1 a1R Qb1+ Qb2 Kd3 Rg3 Rc1 Re8 Rc6 Rg8 Qg1 Rf1 Rcd6 Qa1 Qbb8 Kb2 Qa6 Kc1 Qc4+ Kd1 Qa2 Rba6 Qb4 Qc3+ Ke4 Nc4 Kd5 Rb8 Rc6 Rba8 Kc5 Ne3+ Kb5 Re8 Rcd6 Rg8 Rd5 Rd6 Nc5 Re6 R5d6 Rf6 Ne6 Re8 Be4 Rh6 Bg6 Rg8 Qf2 Bb7 Qff5 Rac8 R8d7 Rce8 Rd8 Bc8 Qfb1+
2rN2k1/3q1n2/1QNrb1pb/B2n1Bb1/1pB1b2n/1PnN4/1KR1N2b/Q5Q1 b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 b3 hxg4 Nc3 a5 Rb1 a4 Rb2 a3 Na4 axb2 Nc3 Rh5 a4 Rh8 e4 b1N h4 b5 d4 c5 a5 f5 d6 Kf7 d5 f3 d7 g6 a6 b4 e5 c4 h5 f4 h6 g3 d6 g2 a7 Nc6 h7 Nf6 Nd5 c3 Bc4 c2 Rh2 Nc3 Kd2 f2 Ne2 f3 Ndf4+ Nfd5 Qg1 f1B Nd3 f2 e6+ Kg7 e7 Ne5 e8Q Nf7 Bb2 c1B+ Kc2 Bg5 Qe3 Bb7 Qe6 Rc8 a8B Qc7 d8N Qd7 Nc6 Rg8 Qh1 g1B Bc1 Bg2 Bf4 f1N Kb2 Ng3 Be3 Bf3 Bb6 Be4 Ba5 Nf5 Rf2 Bh2 Qg1 Ba6 Bb7 Rd8 Bc8 Nh4 Rg2 Kh8 Qf6+ Bg7 Qff2 Rgf8 Qb6 B7h6 Rf2 Kg7 Rg2 Rg8 h8Q+ Kf8 Qhd4 Rh8 Qa1 Kg8 Qdg1 Bb7 Ned4 Bf5 Rc2 Be6 Ne2 Nf6 Ncd4 Be4 Nc6 Nfd5 Bb7 Qe8 d7 Rc8 d8N Qd7 Ncd4 Rc6 Bc8 Rd6 N4c6 Qe8 Qh1 Bh3 B8a6 Kh7 Bc8 Qe7 Bg4 Qd7 Nb7 Rc8 Qhg1 Kg7 Nbd8 Kg8 Bh5 Bhf5 Bg4 Be6 Bf5
3r1rR1/2Bb3R/3b4/B1n1k1N1/bqr2bp1/BB1p4/1K2bQP1/nRQr2Q1 b - - 0 1 illegal: No proof kernel
QnN1N3/n2k2K1/pnbb2Rp/4n3/q3QN2/7R/PQbB1N2/r1n1b1Rr b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 h5 f4 Ke2 f3+ Ke3 g6 Bd3 gxh5 Be2 Qa5 Kd4 fxe2 Kc4 Qd8 Kc3 h4 f4 e1N g4 b5 d4 e5 c6 h3 c7 e3 f5 e2 g5 h6 f6 a6 g6 h2 g7 e4 d5 e3 Kd4 b4 Ke5 b3 c4 b2 f7+ Kd7 c5 Nf6 d6 Nd5 g8R Qh4 Bd2 Qa4 Qb3 Nb6 Kf6 Nf3 Nc3 b1N Nd1 e1B Nh3 e2 Qb2 Na3 Nf4 Nb5 Nf2 Ne5 Rg6 Na7 Rd1 Be7+ Kg7 Rd8 f8Q Bb7 c8N Be4 Qf6 Bc2 Qh4 Rf8 Rhg1 h1B R1g3 Bc6 Rh3 Rf5 Ra1 Rh5 Qg4+ Kd8 d7 Bd6 Qf5 Kc7 Qe4 Rh4 d8N Kd7 Nde6 Rh5 Rc3 Rh1 Rh3 Nb5 Rc1 Ra7 Ra1 Rb7 Nc7 Na7 Ne8 Na8 Qbd4 Rb1 Qb2 Nb6 Be3 Bb4 Bd2 Rbf1 Rc1 e1N Rb1 N1d3 Ra1 Bb7 Re1 Nc1 c6+ Kd8 c7+ Kd7 Ree3 Bc6 Reg3 Ne2 Rg1 Ra1 Bc1 Be1 Bd2 Ba3 Ncd6 Nc1 c8Q+ Ke7 Qb7+ Kd8 Qa8 Kd7 Nc8 Be7 Qd5+ Bd6 Qe4
2q2n2/R1QQ1bqp/B5nQ/b2nR1B1/3k1r1P/3rnpQN/1b4RK/3b2B1 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Nd2 e4 Ndf3 exf3 Ra4 Qf6 Ra1 Qd8 Kf2 Ke7 b4 Kd6 c4 Ke5 e4 d5 g4 f5 h4 a5 g5 a4 c5 a3 g6 d3 c6 d4 c7 a2 b6 d2 b7 d3 b5 Nd7 b8B Bb4 b6 Kd4 g7 Ra4 e5 Ba5 b7 Ne7 g8Q Ng6 e6 Ndf8 e7 Be6 e8Q Qc8 Bg2 Bf7 Qde1 d1Q Bf1 d2 Nh3 Qc2 Kg1 d1B Bd3 f2+ Kh2 f3 Qd2 f4 Rg1 Qb2 Rg2 Ra3 Ba6+ Rd3 Qe7 Qc3 Qg5 Qb2 Qh6 f1N+ Kh1 Ne3 Kh2 f2 Ba7+ Ke5 b8Q f3 Qb7 Nd5 Qc2 Ke4 Bg5 Qg7 Qa4+ Ke5 Qd7 f1N+ Kh1 Qe8 c8R Nfe3 Rc5 Qc8 Kh2 Ke4 Qbc7 Kd4 Rb1 a1B Rb7 B1c3 Bb6 Bb2 Ra7 Ne6 Qgd8 Re8 Qg3 Nef8 Q7c7 Re4 Qdd7 Rf4 Rb5+ Ke4 Bd4 Nf5 Bg1 Nfe3 Rb6 Kd4 Re6 Qg8 Re7 Qg7 Re5
4NRq1/q3pQ2/3B3n/1brrr1N1/R1R3Qn/1p4br/qq1NPN2/3QK2k b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 g6 h3 Bg2 hxg2 Bb2 fxg6 Ba3 g5 Bc1 g4 a4 Kd7 f4 Kd6 h4 c5 d4 g5 h5 b5 h6 b3 a5 g3 a6 b2 a7 c4 f5 g4 f6 c3 f7 b4 h7 c2 Rh2 b3 Nh3 g1R+ Kd2 g2 Ra5 g3 Qf1 Bh6+ Ng5 Ba6 f8R Nc6 Ra1 Rc8 a8Q Ne5 Qf2 Bb5 Qf7 Rc5 Rh4 Ng6 Ra4 Bg7 Qc8 Be5 Qcf5 Nh6 Qg4 Qb8 Nh3 Qa7 Nf2 Rd1+ Ke3 g1R Nd2 b1Q Ba3 c1Q Kf3 Rg8 h8N g2 Ke3 Rh1 Rc4 Kc7 d6+ Kc6 d7 g1Q d8Q Bg3 Kf3 Qa2 Qdd7+ Kb6 d5 Rh3 d6 Qcb2 Qd8+ Kc6 d7 Rg7 Ra4 Re5 Bd6 Rg8 Qh7 Kd5 Nf7 Rc1 Ng5 Rc5 Qc7 Rg7 d8N Rg8 Nde6 Rh8 Rf6 Rd8 Ng7 Rd7 Ne8 Rd8 Qgc8 Rd7 Rhe4 Nh4+ Ke3 Qg2 Rf8 Qg1 Q7d8 Qg2 Nf7 Ke6 Qg8 Kf5 Ng5+ Nf7 Nc4 Qc2 Nh7 Qcb2 Bc7 Bh2+ Qg3 Qg1 Qf3+ Kg6 Bb8 Nh6 Bc7 Rd1 Qd2 Qg4 Bd6 Kh5 Qc2 Rdd5 Qd1 Bg3 Qf4 Qg8 Ng5 Rh2 Qf7+ Ng6 Ng4 Kh4 Nd2 Rh1 Kf3 Rh2 Rec4 Rh1 Nge4 Kh3 Qce6 Nh4+ Ke3 Bf4+ Kf2 Rh2+ Ke1 Kg2 Qef5 Rh3 Ngf2 Kg1 Qg4+ Kh2 Nd3 Kh1 Ng5 Bg3+ Nf2+
r1QK1n2/nr1Q4/1Nbn1pp1/q7/1bRqk1Np/R2qb1P1/1NB1Q3/2R2R2 b - - 0 1 illegal: No proof kernel
Q2R4/bp6/n3pN2/1N2qrb1/QPR1R3/3p1q1b/1kQ2r2/qNRBK1nr b - - 0 1 illegal: No possible last move, all moves rejected
1Q1Kbr1B/2nBp1b1/rQN1Br2/bb3n2/qkbpP2R/N7/2p5/3Q2QN b - - 0 1 illegal: No proof kernel
1B2R1q1/3pb1nn/B3Qp2/Q3QR1r/4Rpbb/3rq3/KbRP2kb/3BN3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 Na3 exf4 axb5 Rh5 b6 Rh7 Nb5 Rh8 Nd4 c6 b5 c5 Nc6 Bb7 Nb4 cxb4 Bh3 Ba6 Bf1 Bc8 c4 Ke7 h4 Ke6 e4 Ke5 h5 a5 b7 g5 h6 g3 b6 a4 c5 b3 c6 a3 h7 g2 c7 a2 Rh4 b2 Qf3 b1Q Kd1 Nf6 Qe3 Na6 b8R Nc5 b7 Be7 Ba6 Qb6 Kc2 Qg8 Ba3 Ne6 Rf1 a1B Qe2 Kd4 e5 Ng7 e6 Bb2 Kb1 Qc5 Qh5 Ke4 Ka2 Qe3 Nf3 g1B Bd6 Bh2 Rg4 Ra7 Ra8 Bg3 b8Q Bb7 c8R Bh4 Rc2 Bc6 Qd8 Bb5 Rac8 Be2 Qh6 Rc7 Ra8 Rc3 Qa5 Rd3 Re8 Bd1 Bb8 Be2 Rg2 g4 Re1 g3 Rh2 Bd6 e7 g2 Rh3 g1B Rg3 Ba1 Rg5 Bh2 Rf5 Bb2 Nd4 Bg4 Nf3 Qf8 Re2 Rg8 h8Q Nh7 Rd8 Bc5 e8B Bce7 Qhb6 f6 Bh5 Ne6 Re8 Rg5 Qd6 Ng7 Qg8 Bh3 Bg4 Rh5 Qge6+ Be5 Ng1 Qg8 Rf2 Qb6 Bd1 Bg4 Rf1 Qf2 Re1+ Qe2 Nh3 Kf3 Ng5+ Kg3 Nf3 Bb2 Qde5 Qe4 Re3 Kg2 Re1 Qd4 Re4 Qe3 Ne1+
3q1b1R/2R4n/QNQ1qB2/1K3k2/2p1R1B1/RB1pQ1np/1n1bb1rP/4rb2 b - - 0 1 legal: proof: d4 b5 c4 e5 f4 g5 a4 gxf4 Na3 d6 Nc2 d5 axb5 dxc4 d5 Bh3 Nd4 exd4 Ra4 Bd7 Ra1 Bc8 Kd2 Ke7 e4 Kf6 g4 h5 b4 a5 b6 c5 d6 c3+ Kd3 a4 Kc4 d3 e5+ Kg6 g5 f5 b5 a3 e6 a2 d7 c2 b7 h4 e7 h3 e8Q+ Kg7 b6 f3 g6 Kf6 g7 f2 Qe3 f4 Kb5 f3 Ne2 Kf5 Nf4 Na6 b8Q Nf6 g8B Nh7 Bb2 c1B b7 Bd2 Bb3 c4 Be2 f1B Qd6 f2 b8R Nc5 Qc6 Na4 Nd5 Rg8 Bf6 Rg2 Nb6 Nb2 Rb7 Ra6 Rc7 Bb7 Rc1 a1Q Rc3 Qb1 Bf3 Ra1 Qde2 Qe1 Bg4+ Kg6 Q2f3 Qe2 Qg3 Re1 Qgd6 Ba8 Qa3 Bb7 Qa6 Ba8 Qef3 Qe6 Qe3 Be2 Rg1 f1N Rh1 Ng3 Rg1 Qc8 d8R Bb7 Re8 Qd8 Rf1 Ba8 Rf4 Bf1 Re4 Bb7 Bf3 Kf5 Bh5 Bg7 Rh8 Bf8 Bbd1 Bc8 Ra3 Bd7 Bhe2 Be8 Ba4 Bh5 Bb3 Bf3 Bed1 B3e2 Rg4 Bf3 Rh4 Be4 Bh5 Bf3 Re4 B3e2 Bg4+
rbBQN2k/1RB5/1BR1r3/b3bK1p/Q5B1/1n3pb1/2Q2Pp1/qb1b2Rn b - - 0 1 illegal: No proof kernel
4B1kR/5b1R/2p1Q2b/1BKbQr2/1n1n1Bpp/r1b3r1/B2Qq1P1/r3NR2 b - - 0 1 illegal: No possible last move, all moves rejected
1RQ5/1K1BN3/1bppR1r1/1B2R1rB/1pk2n2/b1Pb2r1/2Q1r1b1/1nB3qQ b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 Nd2 f6 Ne4 fxg5 Ng3 hxg3 Bf4 g4 Bg5 Nf6 Bc1 Ng8 Kd2 Ke7 Kd3 Ke6 Ke4 b5 h4 g5 a4 d6 f4 g2 a5 g3 h5 b3 h6 b4 c3 g4 a6 b2 f5+ Kf7 Kd5 b1B e4 Nc6 a7 Na5 f6 Nc4 Kc6 Ke6 f7 Na3 h7 Bd3 Qc2 Bh6 f8R Nf6 Nh3 g1B Be2 Nb1 Ra5 Bb6 Re1 Rg8 h8Q g2 Qh7 g3 Bh5 Rb8 a8Q g1R Qh8 g2 Nf4+ Ke7 e6 Nd5 e5 Rg6 Re2 Re1 Rb5 g1R Qa6 Ra8 Rf6 Bd7+ Kb7 Qg8 Qa1 Qg7 Qc8 R1g3 Rf8 Ra5 Rd8 Be8 Re3 Kf8 e7+ Kf7 e6+ Kf6 Re4 Re2 Re3 Bd7 e8B Qg8 e7 Bh3 Re5 Bg2 Bd7 Qg7 e8B c6 Re6+ Kf5 Bf7 Qd4 Rde8 Qg1 Re5+ Kf6 R8e7 Nc7 Bd5 Ne6 Bb3 Bg5 Re8 Kf7 Nd5 Nf4 R5e6 Bh6 Ne7 Bg5 Rbe5 Bh6 Re4 Rag5 R6e5+ Kf6 Ba4 Kf7 Ra5 Kf6 Ra8 Kf7 Rb8 Kf6 Rc4 Ke5 Rc5+ Nd5 Qab2 Na3 Be3 Qd1 Ka8 R5g4 Qbc1 Nb1 Kb7 Bf4 Rb5 R4g5 Rf8 Qf1 Rc5 Qf2 Qh1 Qg1 Rf6 Ke4 Bd4 Bc1 Be3 Ba3 Bc1 Nf4 Qb2 Bc2 Re5+ Kd3 Rfe6 Kc4 Qa2+ Bb3 Qd2 Bc2 Qd1 Bf5 Qc2 Bd3 Bb5#
Bn2RBbb/2Qp1rQQ/4Nn2/5r2/2Bn2b1/n2Pk2p/R3p2K/2qbR1Q1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Nc3 g5 Na2 gxh4 axb5 Na6 b6 Nb8 b5 Bg7 Nb4 cxb4 Ba3 Bh6 Bc1 Bf8 g4 Kf7 f4 Kg6 Kf2 a5 Kg2 h5 c4 e5 g5 Kf5 b7 a4 b6 h3+ Kg3 h4+ Kh2 a3 d3 e3 c5 a2 c6 b3 c7 e2 g6 e1N g7 e4 Qe2 e3 Qd2 b2 Be2 b1B Qd1 Bc2 Bb2 Nf6 g8Q Rh7 Bc1 Rf7 Ba3 Ra5 Nf3 Bg7 Bf8 Bh8 Qh7+ Kg4 f5 Kf4 Bf1 e2 Ng5 Ke3 Ne6 Rb5 Qb1 Bd1 Bg2 Nc2 Re1 Nd4 Bd5 Qe7 Bc4 Qa3 Qc1+ Kf2 Qg5 Qc1 Qg2+ Ke3 Qgg8 Nbc6 b8R Ba6 Re8 Nb8 c8B Bb7 Qg4 Bf3 Bb7 Re5 Qgg6 Bg4 Ba8 Ra5 b7 Rb5 Rb1 a1N Rb2 Nac2 Ra2 Na3 Qgg7 Ne4 f6 Rf5 Kg1 h2+ Kh1 Re7 f7 Nf6 Kg2 h1B+ Kh2 h3 Qgg8 Nbc6 b8Q Bd5 Qc7 Nb8 Bh6+ Kf2 f8Q Rf7 Qfc5 Kf3 Bf8 Ke3 Qgg7 Re7 Nf4 Bg8 Ne6 Rf7 Q5c6 Qc3 Qh1 Qc1 Qg1+
qbrr4/Q1q2k1N/Nn6/2r2R1n/1p1b2QB/N3p1pb/2BB1pP1/Q1K2B2 b - - 0 1 illegal: No proof kernel
2N4B/3Q1Rq1/npp1rbq1/8/Kp1NQ3/BpQnrb2/1qP1kNB1/2Br4 b - - 0 1 illegal: No proof kernel
N7/2p2pQr/p1PB1R2/4pb2/2Q1nNN1/1Q2nB1r/QK2nBnq/4b1nk b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 c4 Kd7 d4 Kd6 Kd2 e5 Kc3 g3 h4 a6 h5 g2 h6 e3 c5+ Kd5 c6 Ke4 h7 e2 d5 e1N g6 f3 b6 f2 b5 Qd6 g7 Nf6 g8N Qe7 d6 Ne8 d7 Qd6 d8B Nf3 b7 Ng5 b6 Nf3 Qe2+ Kd5 Na3 Qc5+ Nc4 Nd6 Rh6 Ne4+ Kb2 Nd4 Rf6 Bf5 Be3 Nd7 Nh3 g1N Bg2 f1N Bf2 Ne3 Bf3 Ng2 b8Q Qd6 b7 Nb6 Qc2 Nde2 Be7 Bh6 Qa4 Bd2 Qa2 Be1 Nh6 Qc5 Qe8 Qe3 b8Q Qf4 Qb7 Qh2 Bd6 Rc8 Qd7 Rcg8 Ng4 Rg7 Bh4 Kd4 Qe6 Nd5 Bf2+ Nde3 Nb6 Kd3 Nf4+ Kd2 Nh6 Rg3 Ng4 Rh3 Qec4 Nd5 Bg3 Nh4 Nh6 Ke3 Ng6 Ng5 Na8 Ne4 Bf4+ Kf2 Qbb3 Kf1 Bg3 Ne3 Bf2 Rg8 h8Q Rg7 Bh5 Kg2 Nf4+ Kh1 Bf3+ Nhg2 Ng4 Rgh7 Qg7
KBn4r/1B2B1NB/2r1R1p1/kpnr2Pp/3bQ3/Q1r1Q1Nb/3b2p1/5qN1 b - - 0 1 illegal: No proof kernel
KR1k2b1/b4Qp1/1q3b2/1B2rnpN/1Bb2pP1/Q4p1N/1r1nN1BQ/Q3n3 b - - 0 1 legal: proof: d4 b5 f4 c5 b4 cxd4 a4 e5 axb5 exf4 Ra6 h6 Rg6 Qe7 Rg4 Qd8 Rg5 hxg5 Kd2 a5 Kd3 f5 Kc4 d3 Kd5 f3 g4 a4 h4 f4 c4 d6 e4 a3 b6 d2 h5 a2 c5 a1B c6 Bd7 h6 Bd4 b5 Ra2 e5 Bc8 b7 Ra6 b6 Rh7 c7 Be3 e6 Ra4 e7 Bf2 Nc3 Nc6 b8Q Nd4 b7 Nc2 Kc6 d5 Qa7 d4 b8Q d3 Qb4 Ra5 Ba3 Nf6 Qa1 Ba6 c8B Bc4 Kb7 d1N Ka8 d2 Qbb2 Qd4 Ba6 Ne4 Qbb7 Rh8 h7 Nde3 Qc5 Rg8 h8Q Nf5 Nce2 Qe3 Qcb4 Re5 Bg2 Qc5 Rh6 Ne1 Rb6 Qc6 Rb5 Ba7 Qh2 Qc7 Qbc3 Kd7 e8N Be7 Bd6 Rf8 Qca3 Rf7 Qe3 Kd8 Nh3 Rf6 Bc5 Rb6 Nf6 Bg8 Nh5 d1B Rb4 Nd2 Qea3 Bf6 Qd5+ Qd6 Qf7 Bb3 Rb5 Qd4 Bf8 Bc4 Rb3 Rd6 Rb7 Rb6 Bc5 Rb3 Bb5 Rb2 Bb4 Qb6 Rb8+
brnR1R2/1k1N2nK/b3ppB1/R1N2Q2/3N2pn/2bpnrPN/8/q3QQ2 b - - 0 1 illegal: No proof kernel
3Q2Br/2RK3R/rp1Bp3/p1bn3R/1Q6/3pNk1n/rBqPr3/1RQ1q2b b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 a5 b6 axb6 gxh4 b4 Nc6 b5 Bb7 Nc3 Na5 Nd5 Ba6 b7 Nb3 b8B Nc5 b6 Bc8 b7 Na6 Nb6 cxb6 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kd5 h5 f4 e3 c4 h3 c5 e2 c6 Kg4 c7 h2 f5 h4 f6 h3 f7 Nc5 Rb1 a5 Nf3 e1R Nh4+ Re2 Bb2 Ne6 Qc1 Ra6 Nf5 Ng5 Ne3+ Kf4 g4 Kf3 Ke5 Nf6 Kf5 d5+ Ke5 Ne6 g5 d4 g6 Nd5 g7 Ng5 g8R e6 Rg7 Qd7 Rh7 Bc5 f8Q+ Qf7 Qd8 Qg6 Qd6 Bd7 c8R Bc6 Rcc7 Qc2 Qd8 d3 Bg2+ Kf2 Be4 Kg3 Bg6 Kf2 Bf7 Kf3 Rg1 h1Q Bg8 h2 Rg3+ Kf2 Rgh3 Qe1 R3h5 Nh3 Qh4+ Kf3 Qb4 Ndf4 Kf6 h1R Kf7 Be4 Ke8 Nd5 Kd7 Ne7 Rc6 Nd5 Bd6 Qg1 b8Q Kf2 Ra1 Bg2 Qe8 Kf3 Qf1+ Qf2 Rc1 Rg1 Qd8 Bh1 Rc7 Rg4 Qa3 Ra4 Qb4 Ra2 Qg1 Qh4 Rb1 Qg3 Qd1 Qe1 Qc1
4Qb2/Q2p1r2/kp4Nn/1N1Bb1r1/pP1RQ1q1/1p2Npr1/3K4/RQ1bn1R1 b - - 0 1 illegal: No proof kernel
2BrqQ2/1pKbRp1r/1n1B2N1/6pp/3Qrb1R/1Q1R2kB/nRp2P2/6b1 b - - 0 1 illegal: Other
1q3kQK/3R2nb/1N2rpRQ/1Np1b2r/np1N4/1R1p1Pp1/1B2q3/Q2R2b1 b - - 0 1 illegal: No possible last move, all moves rejected
BR6/pN2K2p/1pq1QR1n/1Q3N1r/4NQkP/n5pp/1bb1n1rn/3R2Q1 b - - 0 1 illegal: No proof kernel
B1Q1q1N1/4b2p/rbN1q2P/7N/8/nN2bK1b/B2B4/kN1RNn1r b - - 0 1 legal: proof: b4 b5 d4 d5 f4 g5 fxg5 e5 dxe5 a5 a3 axb4 axb4 d4 c4 bxc4 Ra3 c5 Rc3 dxc3 bxc5 Qb6 Bb2 Qc7 Bc1 Qd8 Kf2 Ke7 e4 Ke6 g4 f5 h4 c2 g6 c3 g5 f4 c6 f3 h5 Ba6 c7 Bd3 c8N Ra6 g7 Be7 h6 Qe8 g6 Nc6 Bg2 Nb4 Bd2 c1B Na7 c2 Nc6 Nf6 g8N Bf1 g7 Nfd5 Kg3 f2 Nf3 Ra1 Ne1 Ne3 Kf3 Ra6 Nf6 Rf8 g8N Ba3 Rg1 c1B Qc2 Bd8 Bh1 Bh3 Bg2 Bb6 Rh1 Bf5 Nd7 Nf1 Qc3 Nc2 Nc5+ Kf7 Nb3 Ke6 Rg1 Be7 Qc5 Na3 Qc3 Kd7 e6+ Kd6 e5+ Kd5 Qc2 Bh3+ Qf5 Bb4 e7 Kc4 e6 Rf7 Bh1 Rg7 Qf8 Rg2 Qf5 Rh2 Bg2 Rh1 Qf8 Qc8 e8B Be7 Bf7 Qd7 Qc8 Qe8 Bb4 Bcg5 Bd2 Bge3 Nd3 Ng3 Rd1 Nf1 Ne1 Nh2+ Kg3 f1Q Bf3 Qd3 Be4 Nf1+ Kf3 Qdd7 Bd5+ Kb5 Be4 Ka4 Bd5 Bb4 e7 Qe6 Be4 Q8d7 e8N Be7 Nef6 Qe8 Nba5 Bc7 Nh5 Bcb6 Nb7 Kb3 Nc5+ Kb2 Nb3 Ra4 Nd8 Ra6 Ba8 Q6d7 Bc4 Qe6 Nc6 Ka2 Nc5+ Kb2 Ba2 Ka1 Nb3+
knq3RR/1B3R2/b1q5/KRq5/P1r2N2/1q2p1QR/N1Rrn1n1/5bN1 b - - 0 1 illegal: No possible last move
bB1n2b1/2pQ1k2/K1B5/3q1NRq/N1p2bB1/P5qr/r3B1bB/N4B2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 d5 c4 f5 exf5 dxc4 Rh3 b3 Rh5 Ra4 Rh1 Ra8 d4 b6 d5 Bh6 a3 Kf7 d6 Bf8 d7 Ba6 Ra2 Nc6 Qc2 Na7 Qd1 Nc8 dxc8B bxa2 Qg4 Ke8 Qf3 Ra7 Qd1 Ra8 g4 a1Q f4 e5 f6 h5 f7+ Ke7 g6 h4 g7 b5 f5 b4 g5 b3 g6 h3 Be3 e4 Qd7+ Kf6 Kd2 h2 Ne2 b2 Kc3 Ra7 Nd2 Qe8 Ng3 Qe1 Rg1 Nh6 g8B b1B g7 h1B Bh7 Bc5 f8B Qf2 g8B Bg2 Bd6 Qg6 Bd5 Rb7 Bc6 Rb2 Nb3 Ra2 Na1 Qf3 Bf4 Ba7 Kb4 Nf7 Ka5 Bb7 Bb6 Ba8 Ka6 Kg7 f6+ Kf8 Be5 e3 Nf5 e2 Bh2 Nd8 f7 e1Q Be3 Qg5 Bg6 Be4 Bh5 Qeg3 Bd4 Qd1 Bhe2 Rh3 Bf2 Bc5 Be3 Bd6 Ba7 Bf4 Bb8 Bgf3 Rg2 Bd5 Rg1 Qh5 Rg2 Qgg6 Rg5 Qd4 Ne7 Kg7 f8N Kf7 Ne6 Bg2 Nc5 Qgd3 Na4 Qg3 Qd6 Qe5 Bcg4 Be6 Nf5 Qd5 Nc3 Kf6 Qd7 Bg8 Qd6+ Kf7 Na4 Qdf3 Qd3 Qe4 Qd6 Qd5 Qd7+
3r3r/2R1Q1B1/N1N2R2/R1pb4/N2R1RK1/3Pbn1p/nRbrk3/5nb1 b - - 0 1 legal: proof: b4 g5 c4 b5 a4 a5 h4 d5 cxd5 gxh4 f4 e5 Kf2 exf4 e3 f3 Be2 fxe2 axb5 a4 Qb3 Qd6 Qc2 Qa6 Qd1 Qa5 bxa5 Bg7 Ke1 Bh6 Kf2 Bf8 Kf3 Ke7 g4 Kd6 d3 Kc5 d6 e1R d7 h5 d8R f5 g5 a3 e4 f4 e5 c6 b6 h3 b7 h4 a6 a2 g6 h2 g7 h3 a7 Nd7 b8N Kd4 e6 c5 e7 Nf6 g8R Re2 e8R Nd5 Bb2+ Nc3 Rg7 Rd2 Kg4 f3 Qe2 f2 Na6 f1N Re6 Rb8 Rh7 Bh6 a8R Be3 Rf6 Bb7 Rhf7 Bc6 Ra7 Ba4 Rc7 Bc2 Qe1 Bg5 Ne2+ Ke3 Rg1 h1B Rg2 Bf4 Rh2 Bd5 Qh4 Bg5 Nd4 Bh6 Nc6 Ne5+ Kf5 Nf3 Kg4 Ra8 Rf4 Rc8 R7f6 Rb8 Rdd6 Rbd8 Rdd7 Be4 Rd4 Bd5 R4f5 Bf4 Rf2 Bh2 Rff4 Bg1 Rh2 Ne2 Nc3 Nc1 Rb1 a1B Na4 Na2 Bc3 Rd7 Rb2 Rdd8 Rh1 Ke2 Qh7 Ng3 Qe7+ Be3 Rhb1 Nf1 Rb5 Bb2 Ra5 Bc1 Qf8 Bg1 Rb2 Rd1 Qe7+ Bce3 Be1 Rd2 Bh4 Bdb3 Bg5 Bg8 Bh6 Bd5 Bg7
2N1KR2/P3nRNR/3b1R1R/p3q2p/nk2Bp2/bb1B1B2/1r2q3/4qN2 b - - 0 1 legal: proof: b4 a5 c4 d5 cxd5 e5 h4 g5 f4 exf4 hxg5 Kd7 Qa4+ Ke7 Qd1 Ke8 a4 Bh6 b5 Kf8 Qb3 Bg7 Qb4+ axb4 a5 Ke8 a6 Bf8 b6 Bh6 Bb2 Ra7 bxa7 Bf8 Bd4 Bd7 Bb6 Bc8 Ba5 b6 Ra3 bxa5 Ra2 Nc6 Ra1 Nb8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 a8B h6 e4 f3 g4 f2 d4+ Kb6 d6 c5 g6 c4 a7 Kb5 g5 f4 d5 b3 d7 b2 Ke6 Bb7 Kf7 Ne7 d6 Bc6 g7 Nc8 g8B Ne7 e5 Be4 e6 Qc7 d8R Bc2 g6 Be4 g7 Na6 d7 Nb4 Nf3 Nf5 e7 Ng3 e8N Bf5 Ne5 Ne2 Be4 c3 Nc4 c2 Nbd2 b1Q Nb6 c1B Nc8 Qe5 Bfg2 f1Q Bh7 Qd3 g8R Qe1 Ng7 Nc3 Bgf3 Qde2 Nf1 Bd6 Rgf8 Be6+ Ke8 Ba3 Rc1 Na4 Rc6 Nd5 Bhg6 Rh7 Rf7 Ne7 Bd3+ Kb4 Bge4 Bb3 Rh5 Bc2 Rhf5 h5 R5f6 Bc7 Rh6 Bb3 Rcf6 Rh8+ Rf8 Rg8 Ne6 Rg2 Rg8 Nd5 Rgh8 Q2b2 R8h7 Qed4 Ng7 Qe5+ Kf7 Bd6 Re8 Re2 d8R Qbd2 Rf8 Qe3 Rde8 Rb2 Re7 Q3e2 Ke8 Bc5 Ne6 Bd6 Ref7 Ne7 Ng7
3kN1B1/2q1bPR1/2r3Nn/b3qq2/R2q1r1b/R1Bb1b2/N3BB2/1B1K2n1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 e5 d4 exd4 e5 f6 Qc2 f5 Qe4 fxe4 g4 a5 f4 h5 b4 c5 b6 e3 e6 e2 b7 c4 d6 h3 e7 h4 g5 c3 f5 a4 b5 h2 b6 d3 g6 c2 f6 a3 g7 h3 Bd2 c1B Be3 a2 Nd2 Rh6 Ne4 Qc7 Nf3 Nd7 b8R Ra4 b7 Ne5 Bf2 Bg5 Nc3 Rf4 Rg1 h1B Nh4 h2 Ra8 Bf3 b8B h1Q Ng6 Bh4 Ra4 Bf5 f7+ Kd7 e8B+ Kd8 Bb5 Bfe7 d7 Qh3 Ba7 B5e4 Bd4 Qf5 Kd2 e1B+ Kc1 Bd1 Be2 Nf3 Ba6 Bc2 Be5 Bb1 Kd1 d2 Bad3 Bb7 Rg2 Ng1 Bc2 Bf3 Bed4 Nf6 g8B Ng4 Be4 Bd3 Ra3 Ba6 Bb1 Bb5 Nh8 Rc6 Ng6 Nh6 Rg5 Bd3 Bh8 Qa7 Ra4 Kc7 d8N Kd7 Ne6 Qc7 Ng7 Kd8 Bc2 Bfe4 Ne8 Bf3 Rc1 a1Q Na2 Qae5 Bb1 Bb4 Rg2 Ba5 Rc3 Be7 Bd4 Bf2 Rca3 Bfh4 Bf2 Qee4 Bc3 Bb5 Nf8 Qee5 Rg7 Bc4 Ng6 Ba6 Be4 Bc4 Kc2 d1Q+ Kb2 Ba6 Bb1 Qdd4 Kc1 Bd3 Kd1
NRR2K1N/1R3b2/b2Rr2R/2R1npnq/Pn2r3/b1b2b2/rB1Q2k1/5N2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e6 b4 axb4 f5 Ra5 Nh3 Ra7 Ng1 Ra8 g4 h5 g5 f6 Bh3 exf5 Bg4 hxg4 gxf6 Bd7 Kf1 Be6 Ke1 Bc8 Kf2 Kf7 Ke3 Kg6 Kd4 Kg5 Ke5 Kh4 e4 b5 d4 c5 h3 Kg3 d6 g5 a3 b3 f7 b4 h4 b2 d5 c4 h5 c3 d7 c2 Ke6 b3 h6 Na6 d6 Nf6 e5 Nb4 h7 Ne4 Bd2 c1B Bc3 Ba6 Rh3+ Kg2 Nd2 b1B Nf1 b2 Rh6 g3 Nf3 g4 Ng5 Bg7 f8R Ba2+ Qd5 b1B Kf7 Bbd3 e6 Be2 e7 Bf3 Bb2 Bc3 e8R Qc7 Ne6 Ng5+ Ke7 Qc4 d8R Qe2 d7 Rg8 h8N Rg6 Qe4 Bd5 Nc7 Bf7 Rg8 Re6+ Kf8 Qd1 Qd4 Re4 Nd2 Qh1 Rc8 Qh5 d8R Ra7 Nb5 Rae7 Rb1 R7e6 Ba1 B1b2 a4 Ba3 Rc7 Kh3 Qd5 g2 Bb2 g1R Rc5 g3 Rd6 g2 Nc7 Rc1 Na8 g1N Re7 Rc2 Nf1 Kg2 Rb7 Rd2 Bc1 Ra2 Bb2 Nh3 Rc1 Nf2 Qd3 Ng4 Qd2+ Kh1 Rc8 Ne5 Rcb8 Bd4 Rc5 Bc3 Kg7 Kg1 Rgc8 Kh1 Kf8 Kg1 Qd3 Kg2 Qd2+
1Nb1n3/6BP/1K2R3/4kBqb/RnRr4/1N2N2p/1B1Bqb2/1B1bn1rb b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 h4 g5 h5 Bh6 Qd3 Bg7 Qg3 h6 Qh4 gxh4 g5 Bf8 gxh6 Ba3 Bg2 Bc5 Bf1 Bf8 Kf2 Ke7 b4 Ke6 e4 f5 c4 a5 h7 d5 e5 f3 c5 f4 h6 d3 c6 h3 b6 a4 b5 a3 c7 a2 b7 d4 b6 d2 Bb2 d1Q Na3 d3 Nc2 d2 Ne3 Ra6 Bd3 Nc6 b8B Qc2 b7 d1B+ Ne2 Ra4 Rf1 Rd4 Bg6 Qe4 Nc1 Qg5 Nb3 Nb4 Rc1 a1N Rc4 Nac2 Bf5+ Kf7 e6+ Kf6 e7 Ne1 e8B Ke5 Beg6 Bc5 Ba7 Qd3 b8N Nf6 Bb6 Rg8 h8B Rg7 h7 Ne8 Ba5 Bb6 Rc6 Qa6 Rf6 Rg8 Rg1 Qb5 Rg4 Qe2+ Kg1 Ba7 Bg7 Bb6 Bb1 Ba7 Bgf5 f2+ Kh2 f1B+ Kg1 Bg2 Rh4 Nbc2 Bd2 f3 Rg4 Nb4 Rf4 Ba6 c8R Bh1+ Rg4 Bb7 Rc1 Bc8 Rc4 Qh2+ Kf1 f2 Rf4 Bh5 Rg4 Bb6 Ke2 f1B+ Kd1 Na2 Ng2 Qg6 Ra4 Nb4 Bf8 Be2+ Kc1 Bd1 Rh4 Qh6 Rf4 Rg3 Bg7 Qg5 Re4+ Kd5 Rh4 Rdd3 Rf4 Bg1 Rc4 Rd4 Ne3+ Ke5 Bbc3 Bh1f3 Kb2 Bh1 Ka3 Nc6 Ba1 Qe2 Bb2 Na5 Kb4 Nc6+ Kb5 Bf2 Kc5 Nb4 Kb6 Rg1 Re6+
br1RN2r/2P4k/nq1qB1rn/2R2R2/4p3/QNrR3K/2r1Rb2/q4R1N b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Kf2 a5 Kg2 d5 h4 e5 b4 f3+ Kh3 e4 c4 a4 c5 f2 g7 Kf7 c6 a3 c7 d3 h5 d4 b6 a2 b5 d2 b7 d3 b6 Bb4 h6 Qf6 h7 Qe5 Qc1 d1Q Ne2 d2 Ng3 Qe2 Rh2 d1R Nh1 Qa6 Nd2 Nh6 g8N Kg7 Nf6 Bc5 Qa3 Rc1 Bc4 f1R Re2 Rc2 Nb3 Bf2 Be6 Qd6 Rd1 a1Q Rd3 Rfc1 Ne8+ Kf8 f6 g4+ Kg2 g3 f7 Qa7 Kh3 Na6 b8R g2 b7 Bd7 Rd8 g1R b8R Rg6 Rb6 Rb8 Rb5 Bc6 Rc5 Qb6 Rf5 Ba8 Rc5 Rhg8 h8R Rc3 Rh7 Rh8 Rf5 R1c2 Rg7 Rf6 Rgg5 Rg6 Rc5 Bg1 Rgf5 Bf2 Nf6+ Kg7 Ne8+ Kh7 f8R Be3 Rf1 Bf2 Rff5
R3k2n/bBr5/bRnq4/5Rp1/1P1RK3/qNrR2Q1/nRB4B/n2b2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nc4 f3 Ne3 Rh5 Ng2 fxg2 Ra6 Rh3 Ra1 Rh8 h4 g5 d4 c5 Kd2 a5 Kd3 f5 b4 a4 e4 f4 b6 a3 d6 f3 d7+ Kf7 b7 f2 e5 a2 e6+ Ke7 d5 c4+ Ke4 c3 d6+ Kf6 e7 Kf7 e8B+ Ke6 h5 c2 h6 Ra3 h7 Qc7 d8R Nh6 d7 Ke7 Ba6 f1B Rb1 a1N Rb2 Be2 Bg6 Rc3 Qd3 Bd1 Ne2 g1Q Nd4 g2 Qg3 Qd6 Bf4 c1N Nb3 Nc6 b8R Nf7 Rb6 Na2 Rh4 Bg7 Rf8 Bd4 d8R Qf1 Rg4 g1Q Be5 Rg8 h8R Rg7 Rh3 Bb7 Ra8 Nh8 Rf5 Bc8 Bb7 Qa6 Bf4 Qa3 Be5 Be6 Bc8 Bc4 Qh2 Qf1 Be8 Qf2 Rgg3 Qa7 Rb5 Qdb8 Nc5 Qg1 Rgg2 Rc1 Rgd2 Qa3 Qf2 Bf1 Bh2 Na7 Rhf3 Bfe2 Qg3 Qd6 Rbb8 Rf7 Ba4 Rc3 Bc2 Ba6 Nb3 Nc6 Re3 Ba7 Rd4 Rg7 Rb6 Ke8 Red3 Rc7 Bb7+
N1r4R/6N1/1N1BKNbk/4Nnr1/1pn1Rrb1/2b2qR1/Qq2r1P1/1N1b4 b - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 f5 cxd5 g5 exf5 gxh4 Nh3 b3 Bb5+ c6 Ng1 cxb5 Rh3 b4 Rh2 Nf6 Rh1 Ng8 Ke2 Kf7 Kf3 Kg7 Ke4 b5 Ke5 h5 a4 h3 f4 b2 d4 h4 a5 b3 f6+ Kh6 d6 h2 a6 b4 f7 h3 a7 Nc6+ Kd5 e5 d7 e4 f5+ e3 f6 Bg7 f8N Nge7+ Ke6 Na5 d5 Nc4 d6 Rg8 f7 Bc3 Ra3 Nf5 Qd4 Rg5 Nf3 e2 Nh7 e1R+ Ne5 Re2 Qf2 Qf8 Re1 h1Q Bf4 h2 Nf6 Qh8 f8N Qf1 Bg3 h1R Bf4 Rb8 a8N Rh4 Qa7 Qf3 Bh2 Rf2 Re4 Rf4 Bg3 Re2 Qa4 Ba6 d8R Rc8 d7 Bb5 Qa5 Ba4 Re8 Qg7 d8N Qh8 N8d7 Qg7 Nd2 b1B Ndb6 b2 Qa7 Bbc2 Nb1 Bd1 Rf8 Be8 Rb3 Bh5 Qa2 Bg4 Rh8+ Qh7 Nd2 b1B Bh2 Bbc2 Nb1 Bd4 Rbe3 Bc3 Rd3 Qf1 Rg3 Qf3 Nb7 Bd3 Nd6 B3c2 Nde8 Bd3 Rg8 Qa7 Ng7 Qa3 Bg1 B3c2 Bc5 Qb2 Bf8 Ba4 Be7 Be8 Bd6 Bg6 Rh8+
2k1q1BB/2r1N3/pq2p2N/1R1B4/RqB3r1/2P2Rb1/1bKNBnbn/5r2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 cxd4 f5 e6 fxe6 Qc7 Rh6 Qb6 Rh1 Qd8 e4 Ke7 e5 f6 Qg4 Ke8 e7 Kf7 e8B+ Ke7 e6 Kd6 e7 Kc5 Qe6 dxe6 Kd1 Kd6 g4 Kc7 b4 h5 g6 a6 c3 a3 b5 d3 g7 h4 g5 a2 g6 h3 Bf7 d2 e8B f5 Na3 f4 Bd7 h2 Bh3 f3 Bf5 f2 Nc2 Nc6 Nd4 f1R+ Kc2 Rh4 Bd3 Bb7 Nf5 Ra7 Ne7 Qe8 Bc4 Nh6 g8N Ne5 g7 Nd3 Bc6 Ng4 Bh5 Ndf2 b6+ Kb8 Nh6 d1Q+ Kb2 Ba8 g8B Rc7 b7 Qd4 Bf4 Qb6+ Kc2 Bg7 Bg5 Be5 Bf6 Bg3 Nf3 Qb4 Rg1 h1Q Nd2 Nh2 Bhe2 Rg4 B6d5 Qf3 Bg7 Qe3 Bh8 Qeb6 Rg2 Rh1 Rf1 a1B Rgg1 Bb2 Ra1 Bh4 Rg3 Rf1 Rf3 Bg3 Ra3 Ka7 b8R Bc6 Rd8 Kb7 Rd6 Kb8 Ra4 Bb7 Rc6 Ba8 Rc5 Bb7 Nc6+ Kc8 Rb5 Rb1 Ne7+ Kd8 Rf6 Rf1 Bg2 Kd7 Bh3 Bh1 Bg2 Kd8 Bgd5 Bg2 Rf3 Kd7 Ng6 Kc8 Ne7+
1B1RnR1r/5p2/2Bq4/N3B1qn/1b4RR/pKPR2nb/4kr2/q1bRQ3 b - - 0 1 legal: proof: d4 e5 f4 exf4 g4 b5 a4 h5 axb5 c5 gxh5 cxd4 c3 d3 Na3 Na6 Nc2 dxc2 Bh3 Nb8 Bg2 Be7 Bf1 Bf8 Kd2 Ke7 b4 Kd6 e4 Ke5 h4 a5 h6 g5 b6 d5 h7 f3 h5 Kf4 e5 d4 h6 f2 b5 g4 b7 a4 b6 a3 e6 g3 e7 d3 e8R g2 Rh4+ Bg4 Re3 Be7 Nf3 g1N Nd4 Ne2 Qe1 Nd7 b8R Ra4 b7 Ng3 Nc6 Ndf6 Bg2 f1Q Na5 Bb4 Bc6 Nfh5 Ra8 Qe7 Rd8 Ngf6 b8B+ Qe5 Re4+ Kf3 Rb1 Bh3 Reg4+ Qd5 Be5 Ne8 Bb8 Rf8 h8R Qg1 Rh7 Rh8 Rhg7 Qc5 h7 Qd6 Rd4 Rf8 Rgg4 Rh8 Bb2 c1B+ Kd1 d2 Kc2 Ne4 Ra1 Qg5 Kb3 Rg8 Rd5 Neg3 h8R d1Q+ Ka2 Rg7 Rf8 Rh7 Rb1 Rh8 Ra1 Qd3 Kb3 Qf1 Rb1 Bd2 Rd1 Bc1 Qe4+ Kf2 R5d3 Qe1 Qh1 Ke2 Qg1 Bc5 Qh1 Rf4 Qg1 Bb4 Qh1 Be3 Bc1 Rf2 Bd2 Bf4 Be3 Qg1 Bd4 Bc1 Be5 Qe1 Rd5 Bb2 R1d3 Qa1 Rd1 Bc1 R5d3 Qde7 Qg1 Qd6 Qe1#
3K1R1k/2BBNB2/1n2b3/pPb1N1n1/b1BB4/1QB5/1rq1pNq1/2q3qr b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 b4 e5 d4 f6 e4 exd4 e5 f5 Ra2 Ne7 Re2 Ng8 Re4 fxe4 Ke2 Kf7 f4 Kg7 g4 a5 f5 h5 d6 c5 e6 e3 Kd3 h3 Kc4 h4 Kd5 d3 b6 d2 g5 c4 e7 h2 e8B c3 b7 c2 g6 h3 b5 Nc6 b8B Qb6 d7 Rh4 Ke6 Qc5 f6+ Kh8 f7 Nf6 g7+ Kh7 g8B+ Kh8 Bc4 e2 Ba7 Ne7 Nc3 Nh7 Ne4 Nd5 Nf3 Nb6 Rf1 h1Q Nf2 h2 Ne5 Qg1 Bb2 c1Q Bc3 h1Q Qb3 Ng5+ Kf6 d1B d8B Rh3 Bc7 Be6 Bd7 Bd6 f8N Qhg2 Bf7 Rc8 Be1 Rh1 Nfg6+ Kh7 Ne7 Kh8 Bc3 Qcc6 Qb1 Ba4 Qb3 Qce4 Qa3 Qec2 Qb3 Na8 Bad4 Nb6 Bb8 Rc6 Bc7 Bb4 Nc8 Rd6 Ke7 Bc5 Kd8 Rc6 Ne7 Rd6 Be3 Rd2 Bed4 Qf5 Nfg4 Rb2 Rf4 Qfc2 Nf2 Rh2 Bg6 Rh1 Rf8+ Kg7 Bf7 Kh7 Bg8+ Kh8 Bf7+
bNRRB3/r1n1k3/q1p2pB1/q3rR2/1P1R2Rb/5bnN/3r2BN/1bK5 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b3 h6 Ba3 Qg5 Be7 Qh5 Bg5 Kd7 Qc1 Qg6 Qc3 Ke8 Qf3 gxf3 g4 Qh7 Be7 Qf5 g5 Qd7 g6 Qd8 Bg5 hxg5 Kd1 a5 d4 f6 e4 g4 h4 g3 b4 a4 g7 g2 e5 c6 b6 a3 h5 a2 e6 f2 b7 f3 e7 Nh6 g8B Na6 b8N Qa5 d6 Nc7 d5 Bb7 Bh7 Ra7 Nd2 Nf5 h6 Ba8 Rh4 Ng3 Nh3 g1R Kc1 Rg2 d7+ Kf7 e8B+ Ke7 Rb1 a1Q d8R Rg8 Rg4 Rg5 Be4 Re5 h7 Bh6 h8R Bg5 B4g6 Bh4 Rg8 Rh2 Bg2 f1B Rf8 f2 Nf3 Be2 d6+ Ke6 d7 f1B Rc8 Ke7 d8R Bd1 Rh8 Bd3 Rdd4 Q1a2 Rb2 Bb1 Rf2 Qe2 Rg8 Qea6 Rf1 Rh1 Nh2 Bf3 Bef7 Rg1 Rgd8 Rh1 Be8 Rg1 Rfd1 Rf1 Rdf4 Rf2 R1d4 Rd2 Rf5
2qBqR2/n2rBnkq/1pBr3p/b3q3/1R1r4/B2B1B2/n1N4P/QR3K2 b - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Na6 b6 Bc8 b7 Nb8 e4 d5 b5 dxe4 b6 cxb6 f3 Be6 Bb2 Bf5 Bc1 Bc8 Nh3 g5 Nc3 e5 Nf4 gxf4 Ne2 e3 Ng1 Bf5 Ke2 Bg6 Qe1 Be4 Qd1 Bd5 Kd3 e2 Kc3 e4 Nh3 e3 Ng1 Be4 fxe4 Bd6 Kc4 Be7 Kc3 Bf8 g4 e1Q e5 f5 e6 a5 e7 Kf7 e8R f3 g5 e2 g6+ Kg7 Ra2 f4 Ba3 f2 Rb2 a4 Rb4 f3 Qa1 Nc6 b8B Ra7 Bd6 Qc8 Be7 Nh6 Rd8 Qb1 d4 e1N Kd2 Nd3 c4 Rd7 c5 Nc1 Bd3 f1R Ne2 Na7 c6 f2 c7 Na2 Ke3 Nf7 d5+ Ne5 d6 h6 Rg1 Rd1 Nd4 f1Q Nc2 Qf7 Ke2 Qe8 Re1 Rd2+ Kf1 Rg8 Ba6 Rd4 Bd3 Nf7 Rc1 Qa6 c8B Qc4 Bb7 Qc8 Bc6 Rh8 Bh4 Be7 Rd1 Bg5 Bf3 Bd2 Be7 Bc3 Rc4 Ba5 Rb4 Rc7 d7 Rc6 Bd5 Rd6 Bc6 Rh7 Rc1 Qb3 Rb1 Qc4 Bc1 a3 Bf3 Qb7 Rb8 Qcc8 d8B Nc3 Bc6 a2 Ba3 Qbd7 Qb2 a1Q Qc1 Kg8 g7 Na2 Ra8 Qc3 Qb2 Qc5 Qa1 Qe5 Bf3 Ng5 Rb8 Kf7 g8B+ Kg7 Bgc4 Nf7 Bcd5 Qdf5 R1b3 Qg8 Kg1 Kh8+ Bg5 Qc3 Bc7 Nd8 Bb7 Rhd7 Rb1 Nf7 Kf1 Kg7 Be7 Qfh7 Re8 Qc4 Bcd8 Qc8 Bbc6 Qf8 Bh4 Qfe7 Rf8 Qe8 Bhe7
1n1RN2N/B2q1pkn/1N1B4/K2P1R2/R2BRR1p/1r2q1b1/p1b5/2rq2n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Ke7 h5 Ke8 g4 Qd6 Bg2 Ke7 Be4 Qb4 Bg6 Qe4 Qb3 Qe5 Qg3 Qd6 Qh4 gxh4 g5 Ke8 Bf5 Kd8 g6 Ke8 g7 Qd8 Bg6 hxg6 b4 c5 d4 a5 Kd2 f3 Kc3 f2 e4 f1Q e5 a4 e6 c4 b6 g5 b5 g4 b7 g3 b6 a3 d6 g2 Kb4 c3 h6 c2 e7 Ra7 d5 Qd7 h7 Qdf5 Ne2 g1Q Bb2 c1N Nf4 Qfg6 Bd4 Q6g2 Nd2 Qe1 Nh5 Nd7 b8B Ngf6 g8R Qh3 b7 Ne2 Rg4 Qd1 Nc4 Qge3 Rf1 Ng1 Rf5 a2 Nb6 Ra6 Ba7 Ra3 b8B Rb3+ Ka5 Rg8 h8N Nh7 Bc7 Nb8 Rb1 Bg7 Rgf4 Be5 Rc1 Rg2 Rc4 Rc2 Ra4 Rc1 Na8 Kd7 e8R Ba6 Re6 Bd3 Re8 Bc2 Re6 Bf6 Ree4 Be5 Nb6+ Ke8 d7+ Kf8 Nf6 Kg7 d8R Qhg4 Bd6 Qgh3 Rf1 Bg3 R5f4 Qc8 Rf5 Qc6 R1f4 Qd7 Ne8+
R5BK/pN2rp2/3p3b/2nRR2P/B4r2/bn1q4/rNnknBN1/3RR3 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 f4 exf4 h4 cxd4 g4 Qe7 h5 Kd8 Qd3 Bb7 Qf5 Ke8 Qg6 Qd8 h6 Be4 Qf6 Bg6 Qg5 Bh5 Qg6 hxg6 gxh5 Bb4+ Kf2 Ba3 Ke1 Bf8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 d3 b4 d2 e4 d1N c4 Be7 c5 Na6 h7 Qa5 c6 Qd8 b6 Nc3 c7 Nf6 c8N Ncd5 b7 Nc5 b8R Re8 h8R Ne3 b5 f3 b6 f2 b7 Nb3 Bd3 f1R Nd6 Rf4 Nd2 Nc2 Ne2 Kg4 Rf8 g5 N2c4 Kf3 Re1 g4 Nb2 g5 Be3 g3 Bf2 g2 Rad1 g1N Rc8 g4 b8R g3 Rb5 g2 Rd5 Rb8 Rcc5 Rb5 Nb7 Ra5 Rh8 Ra2 Rg8 Rh4 Nf4 Ne2 Rb5 g1B Ng2 Bb4+ Kf5 Bh2 e5 Re7 e6 Ba3 Re5 Bg3 Rbd5 Ne4 Re8 Nec5 Kf6 Rg4 Bh7 Rf4+ Kg7 Bh4 Rf8 Bg5 Bg8 Bh6+ Kh7 d6 Re8 Qa5 Kh8 Qd2 Rb8 Qd3 Ra8 Rc7 e7 Rd7 e8B Re7 Rg5 Ke4 Ba4 Kf3 Bh4 Ke4 Rde5+ Kd4 Bf2+ Kc3 Rc1 Kd2 Rd5 Na6 Rge5 Nac5 Rcd1+
2KR1N2/1R4q1/k1Pp1n2/b1n2BrR/2qpQ1Rr/n2N1q2/R1qRp3/6N1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 f4 fxe4 g4 b5 axb5 h6 f5 Bb7 Bg5 hxg5 f6 Bd5 Nf3 Be6 Ng1 Bf5 gxf5 Qc8 Bh3 Qc7 Bf1 Qd8 Kd2 a5 h4 e5 c4 e3+ Kd3 e2 Ke4 e1Q+ Kd5 g4 b4 g5 h5 e4 c5 a4 c6 e3 b6 g3 h6 e2 b7 a3 b5 a2 b6 g4 h7 g2 Rh5 g3 Na3 Qf2 Nc4 Bb4 Qc2 d6 Ke6 Na6 b8R Qf3 b7 Ba5 Ne5 Ra7 Rd1 a1N Qe4 Nc2 Rd2 Na3 Ra8 Qb8 f7+ Kd8 f8N Kc7 f6 Kb6 f7 Nf6 Nd3 Nc5+ Ke7 Ka6 Rh4 Qc8 Rg4 Qcf5 Rd8 Rg8 h8R Rg5 Rh5 Qd5 Ra8 Qc4 Rd8 Ra8 b8R Qc2 Rb7 Rb8 Nh3 g1Q Bg2 Qgb1 Ng1 Qb5 Bf1 Ra8 Bh3 Ra7 Ra8 g2 Rd8 Qbc4 Ra8 Bb4 Kd8 Bc3 Kc8 Ba5 Rab8 Ra8 Rb2 Ra7 Ra2 Re7 Rb7 Ree5 Qd5 Ref5 Qe4 Rf4 Rg3 Rh4 Bf5 Qf2 Rg4 Qf3 Nh7 Bb6 f8R Ba5 Nh3 g1Q Rd8 Qgg3 Ng1 Qe5 Nf8 Qe7 Qf4 Qg7 Qe4
2Rq4/1NP1k2r/8/nq1BRq2/1Rp5/R1n1rpKR/np3RNN/Q3q1b1 b - - 0 1 legal: proof: g4 b5 d4 c5 c4 e5 f4 exf4 d5 h5 gxh5 Bb7 b4 Bc6 dxc6 bxc4 b5 a6 Ba3 a5 Bb4 axb4 Kf2 g5 h4 d5 a4 f5 e4 g4 b6 b3 a5 b2 e5 f3 c7 c3 e6 d4 b7 f4 e7 d3 h6 d2 h5 c4 h7 c2 h6 c1N a6 Bg7 a7 Nf6 Nc3 Nfd7 Nd5 Rf8 h8R Nc5 h7 Bd4+ Ne3 Na2 Bh3 Na4 Rh2 Nc6 b8R Na5 Rb4 N4c3 Qe1 Rc8 a8R d1Q Rb1 Kf7 e8N Qa4 Nd6+ Ke7 Nb7 Rf7 Rg8 Qb3 h8R Rh7 Rg5 Qa4 Ra1 Qb5 Qd1 Bb6 Rc5 Rb8 Ng2 Ba7 Qa4 Bb6 Rf1 Ba7 Qd1 Rc8 Qa1 g3+ Ke1 Bb6 Be6 Rb8 Re5 Bc5 Ne2 Bg1 Rf2 Rc8 Rh3 Rb8 Ne3 g2 Ng4 Rc8 Nh2 Rb8 Nc5 Rb6 Rf8 Rd6 Ra7 Rd3 Nb7 Re3 Rh8 Nb3 Ra3 Na5 Nf1 Bh2 Rg8 g1Q Rf8 Qg3 Rg8 Bg1 Nh2 Qd4 Rc8 Qd8 Kf1 Qh4 Nc1 Qg3 Nd3 Qg4 Ne1 Qf5 Rc2 f2 Kg2 f3+ Kg3 f1Q Rf2 Qe2 Ng2 Qe1 Bd5+
2N1N1nR/4Nn2/b3pNqP/N1rn4/nB1B2B1/4ppn1/KQn2b1N/6k1 b - - 0 1 legal: proof: b4 b5 f4 h5 g4 hxg4 a4 a5 f5 c5 f6 e6 Ra2 Ra7 Rb2 Rc7 axb5 Ra7 b6 d5 e4 dxe4 b5 Re7 fxe7 Kd7 Rb4 cxb4 e8N g5 d4 f5 Kd2 f4 h4 g3 c4 g4 Kc2 g2 Kb3 f3 d5 a4+ Ka2 a3 h5 g3 b7 Qf6 b6 Qg6 d6 Kc6 c5 Na6 b8B Nc7 b7 Nd5 Ne2 g1N d7 g2 Bc7 Nh3 Bd2 g1N Qc2 Ng5 Nc1 Ne2 Be5 Nf7 Nb3 Ng3 Bd4 Bh6 Rh3 Be3 Qb2 Bf2 Rh4 e3 Bh3 Kb5 b8N Kc4 d8N Kd3 c6 Ke2 c7 Ba6 Bg4 Kf1 c8N Kg1 Na5 Rh6 Nd7 b3+ Ka1 a2 Bb4 Rh8 Nd2 Rh7 Nf1 Rg7 Qc1 Rh7 Kb2 a1N Ndf6 Nc2 Ndc6 Rg7 Kb1 b2 Ka2 b1N N6e7 Rh7 Qb2 Nbc3+ Kb3 Rg7 Nh2 Na4 Ka2 Qe4 h6 Rg5 Rh5 Re5 Rg5 Qg6 Rf5 Nc7 Rg5 Rc5 Rf5 Nd5 Rg5 Qe4 Rg7 Qd3 Rh7 Qg6 Rh8
b1N2NqB/3q1BN1/b6n/1p1RBRBR/rr1b2n1/1k3K2/bPb5/3r1B1n b - - 0 1 illegal: No proof kernel
2B1KB2/1rbpBRR1/b1QPp3/NB1r2n1/n3k2n/7q/BqB5/1qb1n2R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 f5 Rh3 fxe4 Na3 b3 Rh1 c6 Nb5 cxb5 Rh6 b4 Rh4 Nf6 Rh1 Ng8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kf5 h5 Kg6 b5 Kf7 b2 g4 b1N a4 b3 f4 b4 d4 e3 c4+ Ke4 a5 e2 g6 e1B g5 h4 c5 h3 f5 b2 d5 h2 g7 b3 f6 Na6 c6 Rb8 c7 Nc3 g6 b1Q d6 b2 Qa4+ Nb4 a6 Rh5 a7 Ba6 a8B+ Rd5 c8B Qb6 Bg5 Nh6+ Ke8 Nf7 g8B Bh6 g7 Rb7 Qc6 Nd3 Nf3 Na4 Ne5 Ba5 Nc4 Ne1 Ra3 Qf2 Rf3 Bc7 Na5 e6 Bb5 Qd3 Rf5 b1N Bh7 Qb2 g8R Qh3 Rg7 Nd2 Bh4 Ng5 f7 Ndf3 f8B Nd4 Rff7+ Nf5 Rg1 h1Q Rf1 Q1f3 Rh1 Qd1 Bg6 Qdb1 Bh7 Ngf3 Bhe7 Bc1 Bg6 Ng5 Bh7 Ke3 Bg6 Nh4 Bc2 Kd4 Bc4 Rbb5 Qb7 Rf5 Ba2 Rfd5 Qb6+ Ke5 Bc6 Rb3 Qc5 Rb6 Bb5 Rb7 Qc6 Kd4 Bd1 Ke4 Bc2+
3kn2q/1nRrNBrB/1b1p2Nb/3n1RB1/1rnP3B/8/K1b1N1pr/B2R4 b - - 0 1 legal: proof: b4 e5 f4 exf4 g4 b5 a4 c5 c3 h5 Qb3 hxg4 axb5 Be7 b6 Bd6 b5 Bf8 Qb4 cxb4 Kd1 f5 Kc2 g5 Kb3 a5 h4 f3 e4 f4 e5 a4+ Ka2 g3 c4 d6 c5 a3 h5 g4 b7 f2 b6 f3 c6 Ra7 h6 Na6 b8R Nf6 h7 Nc5 b7 Bf5 e6 Bc2 Bd3 f1N c7 f2 Rc8 Ne3 b8B f1N e7 Nc4 Nh3 Nfe3 Nc3 Bg7 Rb1 b3+ Ka1 a2 Be4 g2 Nf4 g1R Nce2 g3 Rh5 Kd7 e8B+ Ke7 B8g6 Qg8 Bf7 Ne8+ Re5+ Kd7 d3 Rg2 Bd2 Rh2 Be1 g2 Bh4 Bh6 Rd1 Qg7 Bg5 Rg8 h8B Qh7 Bg7 Qh8 Bh7 Rb7 B7f6 Rg7 Bh4 Ra7 Ng6 Rb7 Rf5 Ra7 Ne7 Nd5 Bfg5 Nce3 Kb2 a1B+ Kc1 Bc3 d4 Bb4 Kb2 Ba5 Ka3 b2 Ka2 b1R Ng6 Nc4 Rf3 Rab7 Rf5 Nf4 Ba7 R1b3 Bb6 Rb1 Rb8 Rb3 c8N Nd5 Nce7 Rc7 Rc8 Nb7 Bc5 Bb6 Ba3 Rb4 Bb2 Nba5 Rg1 Ra7 Rc5 Kd8 Ba1 Rd7 Rc7 Nb7 Rd1
1B2rkR1/nB1r3B/b2pR2N/N2Pn1R1/3K1B1q/bNp5/3p4/nBr2b1q b - - 0 1 illegal: No proof kernel
1KbRBr1N/Nb1pk3/1R2q1Np/1n2pBr1/1R2q3/3NPn2/1B3n1N/1q2b3 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 Qe2 f5 Qa6 f4 Kd2 f3 Qe2 b5 axb5 fxe2 Kd3 e1Q Ke4 a5 Kd5 e5 b4 h6 g4 h3 f4 h2 c4 d3 b6 a4 c5 a3 g5 a2 f5 d2 g6 d1Q+ Nd2 Qh5 b5 Qf3+ Ne4 Qd2+ Bd3 Qdd1 g7 Rh7 b7 Qf4 c6 Qdg5 b6 Qgh4 f6 Qdf3 f7+ Kd8 c7+ Ke7 Rb1 a1N Rb4 Rh8 Bb2 Nc6 b8N Qg2 b7 Qg6 Na6 Qhg4 b8R Qg4f5 Nd6 Qgf6 Nc5 Qf1 Nf3 Nd4 Bc2 Qc1 Nd3 Qb1 R8b6 Rh7 Rg1 h1B Rg2 Rh8 Nh2 Q6e6+ Kc5 Nf6 g8B Qe4 Rg3 Bg7 f8N Nf3 Bf7 Ng4 Be8 Rg8 Nf7 Nf2 Nh8 Bf6 Kb5 Bh4 Nfg6+ Kf6 Rg5 Nb3 Rg2 Nbd4+ Kc5 Ba6 c8N Nb5 Na7 Bc8 Rg5 Nh3 Rg1 Be1 Rg4 Nf2 Rf4+ Kg7 Rf8 Bg2 Bf7 Kf6 Rd8 Rg7 Be8 Rg8 Rd6 Bh1 Kb6 Rg7 Ne7 Rg5 Neg6 Nbd4 Kc7 Rb8 Ngf4 Ke7 Rdb6 Qh7 Bh5 Nd2 Nc5 Bhb7 Rg8 N2f3 Bf7 Qd3 Bh5 Qdc4 Bf5 Qcd5 Ncd3 Qe4 R4b5 Bd5 Bf7 Ba6 Rb4 Rd8 Rf8 Bc8 Kb8 Bdb7 Bh5 Nb5 Rg8 Rf8 Bhg6 Rf6 Rd8 Rf8 Bh5 Ba6 Be8 Bab7 Nfg6+
1Nr1n1nK/1R3B1Q/1BpR1pR1/1k3n2/R1p5/2q1bP2/b2R2R1/Brnr2q1 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 Na3 d6 Nc2 d5 axb5 dxc4 d5 Qf6 Nd4 exd4 Bd2 Qd6 Bc1 Qd8 Kd2 Kd7 b4 a5 g4 h5 e4 a4 b6 h3 e5 a3 b5 h4 f3 d3 Ke3 a2 Ke4 h2 Kf5 d2 g5 h3 d6 Qe8 e6+ Kd8 d7 Ra4 g6 Bh6 b7 Bf4 g7 Ra7 b6 Ra8 Qc2 d1N Bb2 Nf2 Ne2 Ra3 Nd4 Rb3 Rg1 h1N Rg2 Na6 b8R h2 b7 Be3 Rg6 Ke7 d8R Qc6 Rd6 Nd3 Be2 Qb6 Nc6+ Ke8 Rd1 a1Q Rd2 Nc1 Bf1 Qa3 Ba1 Rb1 Ra8 Qab4 b8B Qc3 Ba7 f6 Nb8 c6 Be2 Ke7 Bd3 Nc7 Rgg2 Qc5+ Kg6 Ng3 Bb6 h1R Ra4 Nf5 Be4 Rf1 Bd5 Rd1 Qe4 Bd7 Qc2 Kd8 e7+ Kc8 e8R+ Kb7 Rc8 Ne8 Bf7 Be6 Qe4 Bd5 Qh4 Be4 Qh7 Bc2 Rcd8 Bb3 Rb2 Ba2 Rdd2 Ngh6 g8R Q5d4 Rg7 Rf8 Rd6 Ng8 Qh2 Qg4+ Kh7 Qg3 Rg6 Qf2 Kh8 Qg1 Ba5+ Ka7 Bb4+ Kb6 Qh7 Kb5 Rb3 Neg7 Rbb2 Rc8 Ba5+ Qb3 Bb6 Ne8 Rd7 Qb4 R2d6 Qb3 Rbd2 Qc3 Rb7
2b1B3/B6b/Q1Bb3Q/1qq1P1R1/1b4BK/1kN1n2n/1r1qB1b1/2N2B1n b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 b5 axb5 cxd4 b4 g5 hxg5 a5 c4 a4 Ra3 Ra5 Rc3 dxc3 bxa5 Bd6 Nd2 Bc5 Nb1 Bf8 Kf2 Ke7 g4 Ke6 e4 f5 b6 h5 b7 d5 a6 h4 c5 d4 c6 d3 g6 c2 g5 d2 a7 h3 a8B f3 Kg3 h2 e5 Kd5 g7 a3 c7 f2 g6 a2 Ba6 f1B Qh5 d1B Qh6 a1B Ba3 c1Q Bb4 f4+ Kf2 f3 Kg3 f2 Bd2 Nd7 Be1 Ne7 Kh4 Bc2 Be2 Nc5 g8B+ Ne6 g7 Bc3 Bf7 Bh7 g8B Bb4 Be8 Bg2 b8Q+ Kd4 Qb6+ Qc5 Bd2 f1Q Bac6 Nf4 Qa6 Nh3 Bgc4 Nd5+ Bg5 Rg8 Nc3 Bd6 B4b5 Ne3 Bbd3 Bb7 c8B Rh8 Bc8d7 Bc8 Bdg4 Rf8 Bdb5 Rf2 Bbc4 Qb1 Bf1 Rd2 Bce2 Rb2 Be7 Qda5 Bd8 Qc2 Bb6 Qd2 Ba7 Qa4 Bef3 Qb5 Nge2+ Kc4 Rg1 Kb3 Nc1+ Kc2 B3e2 h1N Bgh5 Bge4 Rg5 Bg2 Nd3 Kb3 Bhf3 Be6 Bg4 Bc8 Nc1+
r2b4/1Kb1N1r1/1nnN1R1B/r2R1PQ1/3k1nQp/8/2R1rb2/1RR2R1q b - - 0 1 legal: proof: b4 a5 h4 f5 e4 fxe4 c4 g5 a4 gxh4 b5 d5 cxd5 b6 Bc4 Ba6 bxa6 b5 axb5 a4 Bb3 axb3 b6 Qd6 Na3 Qd7 Nb1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Kc4 c5 Kb5 h5 f4 e3 d4 e2 g4 e1N a7 c4 b7 c3 d6 c2 f5 b2 d7 h3 d5 h2 d6 h4 Nf3 e4 Ng5 Ke5 Nc3 e3 Nge4 e2 g5 Nd3 g6 e1B g7 Nf4 Qg4 Be7 Rf1 h1R Nd5 Nc6 Ka6 b1R b8R Nf6 g8R Kd4 Rg6 Rh7 Rh6 Qg8 d8Q Rg7 d7 Rh2 Nd6 Rb5 Rb7 Rc5 Rbb1 Ra5+ Kb7 Bf2 Bd2 c1B Rg6 Ne4 Rf6 Nc3 Ra2 Qe6 Rc2 Na4 Qg8 Bb2 d8R Nb6 Rc8 Bd8+ Ne7 Qe4 Rcc1 Nh3 Bh6 Nf4 Rc2 Qh1 Rc7 Rf7 Q8g5 Rg7 Rd7 Ke3 Rc7 Be5 Rc8 Kd4 Rc7 Rc8 a8R Rg2 Ra7 Ra8 Rcc1 Nb4 R7c2 Nc6 Ne4 Bec7 Nd6 Be1 Ra6 Re2 Ra7 Bf2 Ra6 Ra4 Ra5 Ra3 Rac5 R3a5 Rd5+
2QQqB2/B3B1n1/1Nq3N1/2np2PB/bK2kB2/3R1q2/1bq1rr1p/B7 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c6 axb5 Qb6 h4 Qd8 d5 cxd5 c4 gxh4 c5 d6 cxd6 a5 Nc3 Ra7 Nb1 Ra8 b4 Bd7 b6 Bc6 b5 Bb7 Ra4 Bc8 Rb4 axb4 Kd2 Kf7 f4 Kf6 g4 e5 d7 h5 b7 h3 b6 h2 Na3 b3 Kc3 b2 Bc4 b1Q Bb2 e4 Nf3 h4 Qc2 e3 Be2 h3 Nh4 Bg7 Ba1 Na6 b8B Qe8 d8Q+ Ne7 b7 Bd7 Rd1 h1Q Rd3 h2 Ng6 Nc5 Nc4 Qf3 Ba7 Rf8 b8B Ba4 Nb6 Qc6 Qc1 Qc2+ Kb4+ Kf7 g5 Bb2 f6 Ke6 f7 Kf5 Be5 Ke4 f5 Rb8 f6 Nf5 Bd1 e2 Bf4 Re8 f8B Ng7 f7 e1Q+ Rc3 Re5 Be7 Ra8 f8B Rf5 Qc7 Re8 Qd8 Qfd3 Qd7 Kd4 Nh8 Nb3 Bfb8 Qg6 Bd8 Qb1 Bdc7 Rf2 Bh5 Qf3 Bf4 Qe7+ Bbd6 Qd8 Rc6 Ree2 Rc3 Qde8 Rd3+ Ke4 Qcc8 Nc5 Qdd8 Qc2 Bde7 Qgc6 Ng6
N3nn2/R2BnR2/R2Brk2/8/p4bR1/3KP2q/Qb1pp1n1/1R1Q2Rq b - - 0 1 legal: proof: c4 g5 e4 c5 a4 b5 h4 gxh4 d4 cxd4 Nc3 dxc3 axb5 Bh6 Rh2 Bg7 Rh1 Bf8 Ra3 e5 Qd5 a5 Ra1 Bb7 Qc5 d5 Qe3 d4 Qh3 Bd5 exd5 e4 Qf3 e3 Qe2 Ra7 Qd1 e2 Ra4 Re7 Ra1 Re3 fxe3 Ke7 Kf2 Ke8 b4 Ke7 g4 h5 c5 f5 g5 c2 d6+ Kf7 b6 f4 b5 h3 g6+ Ke6 d7 h4 g7 f3 b7 d3 c6 h2 b6 h3 c7 d2 c8R Rh7 Rc6+ Bd6 Ba3 Nf6 g8R c1B Rg4 Qh8 d8R Rh6 Rf8 Nbd7 b8Q Bb2 b7 Ne8 Rf7 Nf8 Ra6 a4 Rb1 Rf6 Qa8 Kf5 b8R Bf4 Bd6 Qh5 Rfa7 Re6 Qd5+ Kf6 Qa2 Bh6 Kg3 f2 Kf3 Bf4 Bg2 f1N Rbb7 Ng3 Rg7 Nf5 Bf1 Bbe5 Ke4 Ne7 Nf3 Bb2+ Ne5 Qh4 Rhg1 h1Q+ Bg2 h2 Kd3 Qh3 Ba8 Qb7 Nc4 h1N Rh7 Ng3 Nb6 Qbh1 Bc6 Ngf5 Na8 Nh4 Bd7 Ng2 Rf7+
4NBB1/1pR2n1B/bB1Bp2N/4NQb1/rp2K1nn/P7/3k2r1/2n1bN2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 c5 g4 c4 a3 Qc7 Rh3 Qc6 Rg3 Qc5 dxc5 hxg3 Bg2 Kd7 Qd4 Bg7 Ne2 Ke8 Bh6 Bf8 Kd2 Kf7 Nbc3 Nd7 Rh1 Ra7 Nb1 Ra5 Ke1 Ndf6 Qd1 Nd7 Bf1 Ra8 Bc1 Ke8 Ng1 Nb8 Ke2 Kf7 Ke3 Kf6 f4 h5 g5+ Kg7 d6 c3 g6 Kf6 d7 h4 d8N e6 c6 g2 c7 c2 g7 h3 Qd5 h2 Nd2 Ra4 Ke4 Be7 Ngf3 g1B Nf7 Bf2 Bd3 Nd7 N3e5 Nh6 g8B Be1 Nf1 Ng4 Be3 c1N Nh6 Bd8 Rg1 h1N Bb6 Rh7 Rg2 Rg7 Rc2 Ng3+ Kd4 Nge2+ Ke4 Ng1 Rc3 Nf3 Qa5 Ke7 f6+ Kd6 f5 Nh4 f7 Bg5 f6 Rg6 Nc4+ Kc6 f8B Nde5 f7 Bd7 Bd6 Rg7 f8B Nf7 c8N Be8 Qa7 Kb5 Bc2 Bd7 Ne5 Be8 Rc7 Bd7 Nc6 Kc4 Qa5 Kc3 Qf5 Rg6 Bdc5 Rg7 Ne5 Bb5 Nd6 Ba6 Ne8 Rg6 Ne3 Rg7 Bcd6+ Kd2 Nf1+ Ke2 Rc6 Bd8 Qg6 Nf6+ Kf4 Be7 Qh7 Rg2 Rc7 Ng4 Bg6 Bg5+ Ke4 Kd1 Bf5 Ke2 Qg6 Kd1 Qf6 Ke2 Bfh7 Kd1 Qf5 Ke2 Ng3+ Kd2 Nf1+
Q1R2K2/b3RP1N/n3R1bn/7k/nr2R1QN/3r1q2/1q2R1qq/2B1nR1n b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b4 a6 b6 Bd7 b7 Nf6 b5 Ng8 b6 Bc8 Bb5+ axb5 Bb2 Kf7 Ke2 Kg6 Ke3 h5 Kd4 c5+ Ke5 c4 f4 b4 d4 b3 g4 c3 g5 c2 d6 c1Q d5 e3 d7 e2 Ke6 h3 d6 h4 Ra2 h2 Nf3 h3 Rf1 h1Q Nbd2 h2 Ne4 Ra3 Nh4+ Kh5 Kf7 e5 g6 Qdc7 f5 Na6 b8Q Qg2 b7 h1N Ng5 e4 f6 e3 g7 Nh6+ Ke8 Qb1 d8R Bf5 d7 Bc5+ g8R Qch2 f7 Ba7 Bc1 b2 Nh7 Rd3 Qa8 Qc2 b8R b1N Rb4 Bg6 Rba4 Nc3 Re4 Na4 Ke7 Qb1 Rge8 Qb6 Rd2 Qb2 Rb8 Rf8 d8R Rh8 Rd6 Rf8 Qb3 e1Q Qd1+ e2 Rde6 Qeg3 Rb7 Rh8 Reb8 Rhd8 Rc8 R8d4 Kf8 Rb4 Rbe7 Qg4 Rdc2 e1N Qf3 Nb6 Qg3 Q4f3 Rce2 Na4 Qg4+
1KRqrNbk/N6n/rbNRBN2/3b1rb1/P4R2/2r3N1/3r1RQ1/q3b3 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Nh3 f5 Ba3 h6 Bb2 f4 Ng1 Nc6 Bf6 Nce7 Bg5 Nf5 gxf5 hxg5 Kf2 Kf7 a4 c5 e4 b5 h4 b3 d4 b4 e5 b2 f6 c4 h5 c3 d6 g4 d7 g5 d5 b3 h6 g3+ Ke1 g4 h7 c2 Kd2 c1B+ Kd3 g2 Kd4 f2 d6 g3 Kc5 f3 Kc6 Bg5 Nc3 b1Q Rh4 b2 Ba6 f1R Rf4 f2 Ra2 Qa1 Qd2 b1R Nge2 g1R Nb5 g2 Na7 Rb3 Ng3 Rc3+ Bc4+ Kg6 f7 Kg7 e6 Nf6 e7 Bb7+ Kb5 Rg8 h8R Bd5 Ka6 Nh7 Rb2 Rd1 Rc2 f1B e8N+ Kg6 Qe2 Rd2 Nf6 Kg7 Ba2 Be7 f8N Rh1 Bc4 g1B Qg2 Bb6 Ra2 Rh5 Rc2 Bf7 Kb7 Be2 Be6 Bc4 Rb2 Bh4 Ra2 Rf5 Rc2 Qe8 d8N Bd5+ Ndc6 Qd8 d7 Bb4 Rc1 Bg5 Rcf1 B4a5 R1f2 Bb4 Ng6 Re8 Nf8 B4a5 Nc8 Ra6 Kb8 Qe7 d8R Bg8 N8a7 Qd7 Rc8 Qd8 Nfe4 Nf6 Rh6 Nh7 Nf6 Kh8 R2f3 Bf2 Rg6 Be1 Rf2 Bb6 Rg7 Ra3 Rd7 Rc3 Rd6
2nnNq2/4n1BB/1B4rB/nRn2B1p/Qb1KNP2/1B4qb/7Q/rk5b b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 b4 e5 d4 f6 e4 exd4 e5 f5 Ra2 Ne7 Re2 Ng8 Re4 fxe4 Ke2 Kf7 f4 Kg6 g4 a5 e6 c5 b6 h5 b5 d3+ Ke3 a4 d6 d2 e7 a3 g5 Kf5 e8B c4 b7 c3 g6 a2 d7 a1N g7 c2 b6 h3 Bd3 h2 Na3 Ne7 g8B Rh6 Bdc4 Rg6 Nh3 Nbc6 b8Q Nb3 b7 Nba5 Bb2 c1N Bh7 Nd3 Qa4 Nc5 Rb1 h1B Nf2 Ra7 Bg7 d1N+ Kd2 Ne3 Kc3 Ra8 Bb3 Nec4 Bh6 e3 Nb5 e2 Nc7 Nb6 Ne4 Ra7 Bef7 Qe8 Bfg8 Nd8 Kd4 e1Q Bgd5 Qf7 Ne8 Qg3 Qc7 Ra8 b8B Nd3 Nd2 Nac4 Qa2 Ng8 Qc6 Ra7 Qb2 Ra1 Qa4 Na5 Bc2 Bc5+ Kc3 Ne7 Be5 Qf8 Beg7 Ba3 Kd4 Bd6 Bd1 Ba3 Qa2 Nc5 Rb5 Bb4 Bc6 Bb7 Bd5 Nbc8 B5b3 Bbg2 Bf3 Bh3 Bc6 Kg4 Ne4 Kf3 Qc2 Nc4 Qh2 Na5 Qg1 Ke2 Qh2+ Ke1 Bcd5 Qg8 Be6 Qf8 Nf2 Kd2 Bf5 Kc1 Ne4 Nf7 d8B Kb1 Bc7 Nd8 Bb6
1Bb1q1QN/2pq1n2/2r2nr1/n4B1k/nN3BBn/4R3/K1b2P2/3NrN1N b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxc4 a4 f5 axb5 fxe4 h4 g5 b4 Bb7 h5 Na6 h6 Qd7 Ra3 Nc5 Rah3 Qd6 Rh4 gxh4 g5 Qd8 g6 Nf6 g7 Bc8 g8B Bg7 hxg7 Na6 Be2 Nb8 Bd3 Nh5 Bf1 Nf6 d4 e5 Kd2 h5 Kc3 a5 Kb2 a4 d5 c3+ Ka2 a3 b6 h3 b7 h4 d6 h2 b5 e3 b6 e4 Bd3 h3 Ka1 c2 Ba6 a2 Nd2 e2 Bd3 e1N Nc4 e3 Qf3 e2 Be6 Ng2 g8N e1Q Qg3 Qd7 Bdf5 Nh4 Ne7 Rg8 Nf3 Nc6 b8B Na5 b7 Ra6 Ne3 Rg6 Nd2 Rc6 Nd1 Kf8 Kb2 Kg7 Nf1 a1N Bf4 N1b3 Ka2 Nc5 Rg1 h1R Qb3 h2 Rg3 Kh7 Re3 Na4 Qc4 Qe8 d7 Qd2 d8N Qdd7 Nf7 Kg7 Nh8 c1N+ Kb1 Nd3 Ka2 Kh7 Bh3 Rhg1 Nf5 h1B N5g3 Be4 Nh1 Ne5 Bef5 Bc2 Qb3 Nf7 Qd5 Ng5 Qg8+ Kh6 Ba7 Re6 b8N Kh5 Na6 Nf7 Nb4 Ra6 Bb8 Rc6 Nd2 Re1 Nf1 Rg1 Rc3 Rg5 Re3 Rg6 Bhg4+
nB2k1b1/nB1p1q2/NR1n2P1/KBN2r1q/2Qb3N/B7/r1N4B/n3r2r b - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 c5 a4 cxd4 axb5 Rh7 g4 Rh8 Ra3 g6 Rg3 g5 exf5 gxf4 g5 Nc6 Rg2 Nb8 Rg4 hxg4 Kd2 e5 h4 a5 c4 f3 f6 d3 Kc3 f2 b6 e4 c5 e3 g6 g3 b5 a4 Kb4 e2 h5 e1R b7 a3 b6 g2 h6 d2 h7 a2 Ba3 a1N Qg4 d1Q Nf3 g1R Qc4 Rg5 Nh4 Bg7 c6 Ne7 c7 Qh5 Be2 f1N f7+ Kf8 Rh3 Nf5 Rb3 Nc6+ Kb5+ Qe7 b8N Bf6 b7 N1e3 Na6 Nd5 b8B Na7+ Ka5 Nd6 Rb6 Bb7 c8B Bd4 Bf1 Bc6 Bb7 Rf5 Bd3 Qe6 Bf1 Ke7 f8N Qf7 Ne6 Ke8 Nec5 Nc7 Bd3 Bd5 Bf1 Rf8 h8B Be6 Be5 Rh8 Be2 Rf8 Bc1 Qg8 Qa4 R5f6 Bh2 Nab5 Na3 Rff1 Kb4 Rh1 Nc2 Rf5 Bd3 Ra7 Bf1 Na8 Nc7+ Ke7 Qb3 Ra2 N7a6 Ke8 Ba3 Na7 Bb5 Qgh7 Qa4 Bg8 Ka5 Qf7 Qc4
1nn1r1n1/1P5R/r3Q1K1/1b1kNr1B/Nprq2n1/1R1N3R/1NRN4/5q1b b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 a5 h4 gxh4 b4 axb4 c5 Ra3 Bb2 Ra5 Bc1 Ra8 Bb5 b3 Rh3 Bg7 Bf1 b5 Rh1 d6 Ba3 Bd4 Bb4 Bc3 Ba3 Ba5 Bb4 Bb6 cxb6 Nh6 Ba3 Ng8 Bc5 dxc5 Ke2 Kf7 Kf3 e5 Ke4 h5 d4 c4 f4 c5 a4 b4 g4 c3 d5 b2 b7 h3 d6 h2 a5 h4 d7 c2 g5 c1R f6 Ke6 f5+ Kf7 a6 h3 a7 c4 g6+ Kf8 g7+ Kf7 Nf3 c3 Qe2 c2 Na3 b1N Nd2 Qa5 d8R Rd1 Ra2 c1R Rd3 Rc2 Nac4 Qb6 Nb2 Na3 Rb3 Nb5 Qe1 Bd7 Be2 Rh6 Bh5+ Rg6 Qe2 Rf1 Raa3 Rf2 Rc1 Rc3 Rc2 h1N Qe3 h2 Qh3 Ke8 f7+ Ke7 f8N Kd6 f6 Rf5 f7 Rc7 Ne6 Rc4+ Nd4 Re6 f8N Re8 Ne6 Qd8 Nf4 Nf2+ Kf3 Qb6 Nc6 h1B+ Kg3 e4 Kh4 e3 Ne5 Ng4 Nfd3 e2 Qe3 Rff8 Kg5 e1Q Kg6 Qf1 Qe4 Qd4 Qe2 N8f6 g8R Kd5 Rg7 Nd6 Rh7 Bb5 Qe1 Ng8 Qe2 Na6 Qe3 Rf5 Qe2 Rac8 a8N R8c6 Qe3 Nb8 Nb6+ Ke6 Qh6 Nc8 N6a4 Ra6 Qe3 Qc3 Qb6+ Kd5 Qe6+ Kd4 Ne1 Qcd3 Rbc3 Qe3 Rab3 Qeg1 Rh3 Qgf2 Qb6+ Kd5 N1d3 Qd4 Qe6+
b7/B1b1K1R1/1B1pN1qq/1n1b1PR1/2R2bB1/1r1Q3R/1kb1Rq1B/2n3n1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 h4 f6 e4 Ra6 f4 Rb6 d5 cxd5 f5 Ra6 Nc3 Rc6 Nce2 d4 Nf4 gxf4 g5 Re6 e5 fxe5 h5 Rg6 hxg6 e4 Ke2 e5 b4 Ke7 c4 Kd6 g7 h5 c5+ Kd5 g6 Kc4 c6 Kc3 b6 e3 Kf3 a4 Ke4 f3 Kd5 d6 c7 e2 b7 e1B b5 d3 b6 e4 Rb1 d2 Be2 f2 Nh3 f1B Nf2 a3 Rh3+ e3 Rf3 h4 Rh3 a2 Rb4 a1N Bf3 e2 Rb2 Qe8 Rb5 Nb3 Ng4 Na6 b8B Nh6 g8R Bg2 b7 Nf7 g7 Ne5 Ne3 Qg6 Ba7 Be6+ Ke4 Bd5+ Kf4 Bf2 c8R+ Nc7 b8B e1Q Be4 Nf3 Bb6 Ng1 B8a7 Bf3 Qe2 d1B Ng2 Bc2 Rb4 Rh6 Re8 Nb5 Bd2+ Kb2 Rc4 Bd4 Qd3 Qf2 Re7 Ba8 Bb7 Rh8 Re2 Nc1 Be3 Bc3 Bed4 Be7 Be5 Bd8 Be4 Bc7 Bd5 Qe6 Kg5 Qf7 Bg3 Bd2+ Nf4 Be3 Bc6 Bd5 Bh2 Qh5+ Kf6 Qg6+ Ke7 Rh7 Rg3 h3 Ne6 Bf4 Rh8 Rh5 g8R Rg5 Rg2 Rg3 Rg7 Rf3 Rg5 Re3 Bg3 h2 Rh3 h1Q Bh2 Rf3 Qd1 Rb3 Qd3 Qhf3 Be8 Qfh5 Bf7 Qhh6 Be8 Qgh7 Bh5 Q7g6 Bg4
3r2Nq/q1Br1NP1/1Q5N/1q4Nq/1kbN1rB1/1b1Q3q/R4p1N/2K2nb1 b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 a4 b5 axb5 e5 f4 exf4 b4 Nc6 h5 Nce7 Ra6 Ng6 hxg6 f3 Rf6 Bb7 Rf4 gxf4 g5 Bc8 Kd2 Ke7 c4 Kd6 e4 f5 g7 a5 b6 h5 b5 Kc5 e5 d5 g6 d3 b7 a4 b8N f2 e6 a3 b6 h4 e7 a2 e8N a1Q b7 f3 Nc7 f4 Na3 h3 Rh2 d4 Rg2 h2 Ne8 h1Q Nc6 Ra7 b8N Ne7 g8N Qh3 g7 Nf5 Ne5 Ne3 Nd6 Kb4 c5 Be6 c6 Rd7 c7 Bc4 Nb1 Qa7 Nf5 Bc5 Be2 f1Q c8Q f2 Nfh6 f3 Nc3 Qe8 Bb2 Qf8 Kc1 d2+ Kb1 d3 Ne4 Qd8 Qc6 Qdh4 Bc1 Qh5 Qc2 d1Q Nef7 d2 Neg5 Qde1 Qd6 d1B Qcd3 Bdb3 Bd1 Qfe2 Qf6 Nf1 Bf4 Qe8 Kc1 Q1e2 Bc7 Bd4 Qc6 Q2e5 Qb6+ Qb5 Nf6 Rf8 Nfg8 Qc8 Rh2 Rfd8 Rg2 Nh2 Be2 f1R+ Bd1 Bc5 Ra2 Rf2 Be2 Nf1 Bd1 Rg2 Be2 Rg4 Bd1 Rf4 Be2 f2 N1f3 Bd6 Nh2 Rf3 N2g4 Bh2 Bd1 Bg1 Nh2 Rf4 Bg4 Qa4 Qe6 Qa7 Nc6+ Kc5 Nd4 Kb4 Qf6 Qca8 Qb6 Qh1 Nhf5 Qh8 N5h6 Q1f3 Be6 Qfh5 Bg4
QN1bn2b/1Q1kn3/3B1b1b/1n1b2q1/K1P3N1/1Q4R1/B1p4Q/nrQ1Q2n b - - 0 1 illegal: No possible last move, all moves rejected
3nK1bb/1B3p1n/5N2/3QBP1b/1k1QR1q1/2bBr2B/n3B3/n1BRb2q b - - 0 1 legal: proof: e4 b5 b4 c5 f4 d5 f5 dxe4 Nc3 g5 a4 cxb4 axb5 Qd5 Na4 Qd6 Nc3 Qd8 g4 a5 h4 Ra6 h5 Rf6 Nd5 Bb7 Nf4 gxf4 g5 Rg6 hxg6 Bc8 Kf2 Kd7 d4 Kd6 c4 e5 d5 Kc5 b6 h5 b7 h4 g7 f3 Ke3 a4 g6 b3 d6 b2 d7 b1N Rh3 a3 Ne2 f2 Qd4+ Kb4 Qd5 a2 c5 Nc6 b8B Nf6 g8B Bb7 g7 Nc3 Nf4 Nh7 Bc4 f1B Nh5 Be2 Nf6 Bh5 Rf3 h3 Rf4 Qe8 d8Q h2 Q8d6 Nd8 c6+ Ka4 c7 h1Q c8B Bg6 Rb1 a1N Rg4 Ba6 Bb7 Na2 Qd4 Qd7 Q6d5 Ba3 Rh4 Bb2 Bc7 Kb4 Rg4 Ng5 Bh7 Re8 g8B Qa4 Rf4 Qad1 Bb8 Qg4 Bc7 Bh5 Bg6 Re6 B8h7 Re7 Kd2 e3+ Kd3 e2 Ke3 e4 Be5 Qgh4 Rg4 e1B Kf4 Q4h3 Rh4 e3 Rg4 e2 Rh4 Bf3 Bh5 Bc3 Bg4 e1B Bg6 Nh7 B6h5 Q3g2 Bh3 Qg6 Bb8 Re3 Be5 Bd1 Bhe2 Qgg1 Bef1 Bh5 Bfe2 Bg6 Rg4 Nf8 Kg5 Bh7 Kh6 Bg8 Rf4 Qg3 Re4 Qh4+ Kg7 Nh7 Bd2 Bb5 Rd1 Ba4 Bc1 Bc2 Rg4 Be4 Rf4 Bf3 Re4 Bg4 Bh2 Bh5 Be5 Ng5 Kf8 Qg4 Ke7 Nh7 Qd3 Bd4 Ke8 Bbc3 Qd2 Bc5 Q5d4 Bf8 Qd5 Bg7 Q2d4 Bh8 Bcd3+
Q1r1n1Q1/1b1QnN2/2R3rR/Qprkr3/1Q1b4/3pQK2/5brP/q4BB1 b - - 0 1 legal: proof: e4 c5 f4 a5 b4 axb4 d4 f5 exf5 cxd4 g4 h5 g5 g6 Nc3 Ra3 Nd5 Ra8 Ne3 Bg7 fxg6 Bh6 f5 Bf8 Ng4 hxg4 Ke2 b5 a4 e5 c4 Ke7 f6+ Ke6 f7 d5 g7 b3 a5 b2 a6 b1R c5 d3+ Ke3 d2 c6 e4 c7 d4+ Kf4 e3 g6 d3 a7 e2 Kg3 e1B+ Kg2 g3 Ra2 Bc5 f8Q Rh5 Kf3 g2 Nh3 g1R Qe2+ Re5 Ng5+ Kd5 Qe3 d1R Ra6 Bd4 Qb4 Nf6 Nf7 Ne8 g8Q Rg2 g7 Bf2 Rh6 Bb7 c8Q Nc6 Qh7 Rb3 g8Q Qa5 Qc7 Qa1 Qca5 Rc8 a8Q Ne7 Qf5 Rbc3 Qd7+ Nd6 Ba3 R3c5 Rg1 Rd2 Bb2 Rg7 Rgg6 Rdc2 Re6 Rg6 Bc3 Bg1 Be1 Rcg2 Bd2 Bf2 Be1 Bg3 Bf2 Bh4 Bg1 Bf2 Qdc7 Ne8 Rc6 Rge6 Qd8+ Rd6 Qdc7 Rdg6 Qd7+
rB2R1K1/4P3/6pB/1r1B2pn/RB1q1rb1/B1b2r2/R4nbN/R1r2Qk1 b - - 0 1 legal: proof: f4 b5 g4 d5 a4 h6 axb5 d4 g5 hxg5 f5 d3 f6 exf6 cxd3 Rh7 d4 Rh3 d5 Rh8 Nc3 g4 Ne4 Bd6 Ng5 fxg5 Ra3 Bc5 Ra1 Bf8 Ra6 Kd7 Kf2 c5 Ke3 f5 d4 g6 h4 g3 b4 c4 h5 f4+ Ke4 c3 Ke5 c2 e4 f3 h6 g2 h7 f2 d6 Bh6 b6 Kc6 b7+ Qb6 d5+ Kd7 b5 Nf6 Bc4 f1B Nf3 g1R Nh2 Rf8 h8B Bg2 Bg7 Nh5 Qe2 Qe3 b6 Rgf1 Ra3 Na6 b8R Qc5 b7 R1f3 Re1 Qf2 Qf1 Nc5 Bb2 a5 Bc3 Ra7 Ra8 a4 b8B R8f4 Rb1 c1R Bb4 Ke8 d7+ Ke7 d8R Rb7 Rg8 Bg4 Re8+ Kf7 Kd6 Rb5 e5 Nd3 Bf8 Qd2 e6+ Kf6 Ra5 Kf5 Ke7 Qb2 Kf7 Ke4+ Kg8 Bg7 e7 Be5 Bh6 Ke3 Bc5+ Bd4 d6 Qd2 d7 Qf2 Ra2 a3 Rab2 a2 d8B a1R Bd5 Ra4 Bcd6 Bc3 Ra1 Ra3 Rba2 Qd2 Qd1 Kf2 Ra6 Raa4 Ba3 Raa5 Qe2+ Kg1 Ra7 Raa4 Ba5 Nf2 B5b4 Qd4 Ra8 Ra6 Qd3 Re6 Ra4 Ra6 Qe2 Ra8 Qf1+
Rn1nK1bB/p1bB1QPR/1B2B3/2r1b3/3nk3/b1B2Nq1/2p3r1/3b1BQ1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 h4 g5 hxg5 exf4 e4 Ke7 Nc3 Kd7 Nd5 Ke8 Ne3 fxe3 Ke2 Ke7 Kf3 Kd6 Kf4 h5 g4 c5 b4 f5 d4 h4 b6 c3 e5+ Kd5 g6 e2 g5 e1B b7 c4 e6 c2 b5 h3 e7 h2 e8B c3 g7 Rh5 g6 Qd7 b6 Ne7 Bd2 c1B Nf3 c2 Rb1 Bb2 Bc3 Nec6 g8B+ Qf7 Bd7 Bfa3 Qc1 Nd8 Qe3 Rg5 Qg1 Rg2 Rd1 Bg3+ Kg5 Ke4 d5 f4 d6 Qb3 Kf6 Ba1 Ke7 B1b2 Bh8 Be5 g7 Qe3 Ke8 Qd3 Bh3 Be6 d7 Ba2 Bc4 Qd6 Bb5 Bg8 Be6 Qc7 Rd6 Qc3 Rc6 Qb3 Rc8 Bc7 Nd4 f3 Ba4 f2 Nf3 Bge5 Bab5 Nf7 d8B Qd3 Bf6 Nd8 Bbd7 Qe3 Be7 Qf4 Bb4 Qh4 Bc3 Qg3 Bfc4 f1N Ba6 Nbc6 b8Q Nd2 b7 Nb3 Bac4 Nbd4 Bf1 Bb6 Qd6 Nb8 Qe7 Ba5 Rc4 Bac7 Qf7 Nbc6 Rb4 Rc8 Rb6 Nb8 Rc6 Ba5 Rb6 Rc4 Rc6 Rc5 Rc8 Na6 b8B Bb6 Bd6 Bc7 Ra8 Nb8 Qf2 Ra5 Bdb4 Rd5 Ba5 Rc5 Rg1 h1B Qe1+ Re2 Bb6 Bg2 Qc1 Bh3 Qd1 Bg4 Rh1 Rg2 Rh7 Bh5 Be2 Bg4 Qg1 Bh5 Bf1 Bg4 Ne1 Bd1 Nf3
5RQ1/1bBQ3N/r1qRR3/1qr5/bq4RK/4qpnR/1p1P2qR/N5nk b - - 0 1 illegal: No possible last move
B1R2K2/2n4b/2BB2p1/P3N3/Rp1Q1n2/3R1Rnq/krB5/bnrR1q1n b - - 0 1 illegal: No possible last move
r2k1n2/3nqRq1/rPn5/B5b1/2p5/RQnNR1N1/pr4R1/QR1bR1K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 b4 f5 h4 g5 e4 a5 d4 c5 h5 g4 e5 a4 b6 c4 b7 a3 h6 f4 b5 f3 e6 Qa5+ Nc3 Rh7 d6 Rf7 e7 Nf6 h7 Qa7 h8Q Nc6 b8R Nh7 d5 Rf6 Nh3 g1N Kf1 f2 Bd2 Nf3 Qb3 Nfe5 Nf4 Nd7 Nd3 a2 Rb7 Qa3 Ne4 Re6 Qhc3 Bh6 Rb1 Bg5 Qa1 Nhf8 Ba5 Qc5 Kg2 f1R Rc7 Rd1 Re1 Rd2+ Kh1 Qb4 Kg1 g2 Ng3 Rb2 Re3 Ra6 b6 Re5 Kh2 g1N+ Kh1 Ne2 Rb7 Ned4 Kg1 Nb5 Ra7 Nc3 Ra8 Kf7 e8R Re6 Ra7 Rh6 Ree1 Rh8 R8e3 Qa3 Ne5+ Ke8 Nd3+ Kd8 Rb7 Nde5 Rf7 Bf5 d7 Qe7 Nf2 Bc2 Nd3 Qb4 Rf2 Bd1 Rg2 Ke7 d8R Qa3 Nf1 g3 Ra8 Qc5 Ra7+ Kd8 Rf7 Ned7 d6 Qe5 Rgf2 g2 Ng3 Ndb8 d7 Qe7 R2f5 Rg8 Rb5 Rh8 Rb4 Rg8 Ra4 Rh8 Ra3 Rg8 Kh2 g1Q+ Kh3 Nh7 Rc1 Bh4 Ne2 Qg7 Rb1 Bg5 Kg2 Re8 Nf2 Nf8 Ref3 Qb4 Rd3 Re7 Ng3 Ra8 Rde3 Re5 Kg1 Qe7 Bb4 Rb5 R3e2 Rba5 Re3 R5a6 Ba5 Qe4 Rf5 Ke7 d8R Qee5 Rd2 Nbd7 Nd3 Kd8 Rg2 Qee7 Rf7
1KQnbk2/2Pb4/RRB1rRR1/1r5N/Rqr4B/1n1p3p/r3R2Q/3n1q2 b - - 0 1 illegal: No possible last move, all moves rejected
1B1bRN2/pB3P2/4q2B/2Q1pq2/nK3R1R/1Rrr1k1q/2Rr4/b1Bq2n1 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Ng8 Nd2 h6 Ndf3 Bb7 Ng5 hxg5 f6 Bd5 Ne2 Be6 Ng1 Bf5 gxf5 g4 Kd2 Kf7 c4 d5 b4 g5 h4 g3 b6 g2 h5 e3+ Kc2 e2 Kb3 e1Q c5 d3 b5 d2 b7 d4 c6 g4 b6 d3 c7 g3 c8R Na6 b8R Bg7 h6 Qd7 h7 Nh6 b7 Qee6+ Ka3 Rd8 h8B Nc5 Nf3 g1B Qe1 d1R Bf4 g2 Rh3 d2 Kb4 Na4 Nh4 Ng4 Qe5 Bb6 Qc5 g1Q Ba6 Qf1 Ng6 Ne5 Rh4 Nf3 Bh6 Qh3 Nf8 Ng1 Rc1 Qdd3 Rcc4 Qdf3 Rc6 Rd3 Rce4 Bc7 Re8 Rc8 b8B Bd8 Bb7 Rc7 Qb6 Qfg4 Rc2 Rcc3 Qc5 Ra1 Rb2 d1Q Rb3 Ra2 Bc1 Bh6 Bg7 Rad2 Bh2 Be3 Bh6 Bd4 Bc7 Qd6 Bb8 e5 Be3 Qe6 Bh6 Kg8 f7+ Kh8 f6 Qgf5 Nd7+ Kh7 f8R Kg6 f7 Rc4+ Kb5 Ba1 Rh8 Rcc3 Kb4 Qff6 Rhg8+ Kf5 Rg2 Qg6 Rge2 Qgg4 Nf8 Qf4 Rh5+ Kg4 Rh4+ Kf3 Rh2 Qff5 Rhe2 Rd7 Rg2 R2d3 Rgb2 Rd2 Rc2 R7d3 Ref4+
R6b/1bR1R1N1/4R1n1/3PB2B/2b1K3/k1B2pb1/rqnR2p1/1BnQ1b1q b - - 0 1 legal: proof: e4 b5 f4 c5 a4 d5 axb5 g5 d4 gxf4 Bd2 cxd4 Be3 d3 Bc1 d4 g4 a5 Nd2 Ra7 Ndf3 Rd7 Ng5 Rd5 exd5 Bh6 N5h3 Bf8 g5 h6 Nf2 h5 Ng4 hxg4 Kd2 Kd7 c4 Kd6 h4 Kc5 b6 Kb4 b7 e5 b3 f5 c5 e4 c6 f3 g6 a4 c7 f2 h5 g3 h6 a3 g7 a2 h7 f4 Be2 f1B Qc2 g2 Rh6 Nc6 b8B Na5 Qd1 Qf6 Nf3 Ne7 g8B Bb7 c8R Bg7 Rc7 Ng6 Nh4 f3 Bb2 Qe5 Bc3+ Ka3 b4 Qf6 Rc1 a1N b5 Nc2 Bf7 Rf8 b6 Bh8 Rb1 Rd8 Rb2 e3+ Kc1 Rd7 Nf5 d2+ Kb1 d3 Ng7 Rd6 Re7 Re6 Bbe5 Nb3 Be8 Nc1 Rc7 Bc8 b7 Ra6 b8R Bb7 Rbc8 Qb6 Re7 Qb5 Rcc7 Ra5 Qe1 d1Q Bf7 d2 Bd3 e2 Bf5 Nf4 Bh5 Ra8 Rhe6 Ng6 Qh4 e1B Qd4 Bc4 Qg1 Bg3 Qh1 Qe2 Qd1 Qe1 Bf4 Nb4 Rcd7 Ba6 Ne8 Bg7 h8R Qh1 Rc7 Bb7 Qg1 d1B Rd2 Bde2 Qd1 Bf1 Bfe5 Ra6 Rf8 Bh8 Ng7 Ra4 Ra8 Ra5 Qe1 Ka4 Kb2 Ra6 Bb1 Ra7 Qd1+ Nc2+ Bb4 Ra5 Kc3 Ra6 Rd4 Qb6 Kd2 Kb3 Bc3 Ra2 Rd3 Bba6 Rd4 Ka3 Rd3 Qb2 Rd4 Na1+ Ke3 Nc2+ Ke4 Qh2 Rd8 Bb7 Rd2 Qh1 Ra8+
NN6/1q1b1P2/5K1R/1NBq1pQ1/5pNn/n1nN1kb1/3r1Q2/1qN1q1qR b - - 0 1 legal: proof: f4 b5 a4 a5 axb5 e5 d4 c5 g4 cxd4 g5 h5 Bh3 f6 Bg4 hxg4 Bd2 Ra6 Be3 f5 Bc1 Rf6 gxf6 exf4 Kd2 Kf7 Kd3 Kg6 c4 Kh5 b4 d5 e4 g5 h4 a4 c5 a3 c6 a2 c7 Nc6 f7 Qd7 e5 Qe8 e6 Na5 e7 Bd7 c8N Rh7 b6 Nc4 b7 Na3 Qe1 g3 b8N Kg4 h5 g2 Ne2 g1Q h6 Kf3 b5 g4 b6 g3 b7 g2 Nb6 Qc8 e8N Be7 Na8 Bh4 Nc6 Ne7 b8N Qb7 Nb4 Ng6 Nbc3 Bg3 Be3 Nh4 Nb5 Qf1 Bf2 g1Q Nf6 Qfg2 Rb1 a1Q Ng4 Q2f1 Qd2 Qe1 Nc1 Qb2 Ra1 Qb1+ Qc2 Rh8 h7 Rd8 h8Q Qe4+ Kd2 d3 Kc3 d2 Qg7 d1Q Nbd3 Qee1+ Kd4 Qdd2 Be3 Qa5 Ke5 d4 Qg5 Qad2 Nb2 d3 Kf6 Qa5 Qc5 d2 Nbd3 d1N Qb6 Qad2 Bc5 Nc3 Ra2 Qdd1 Rah2 Qdd2 Qd6 Qda2 Qd4 Qad5 Rh3 Re8 R3h2 Re2 Rh3 Rd2 R3h2 Ng2 Rh6 Nh4 Qf2+
1Q1qbQ1K/n2R2P1/1pB2Rkn/n2q1Rbp/1Rrr4/1bp1R2R/1N6/3B4 b - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 h6 g4 Ra7 b4 axb4 g5 Ra4 g6 Ra8 h4 Rh7 h5 Be6 Nc3 Rh8 Ne4 Bc8 Bb2 Qd6 Bf6 Qd7 Bg5 Qd8 Nd6+ Kd7 Nf7 hxg5 h6 Ke8 h7 Qd7 Nh6 gxh6 Rc1 Qd6 Ra1 Qd8 Ke2 e5 Kd3 c5 Ke4 g4 a4 c4 f4 g3 d4 b6 d6 c3 d5 b3 d7+ Ke7 d6+ Kf6 g7 b2 a5 g2 a6 h5 a7 Nc6 Be2 Kf7 f6 Ba6 Kf5 e4 Rb1 e3 Nh3 g1N Qf1 Qe8 d8R Ne5 d7 Rb8 a8B Rb7 Bd1 e2 Nf2 e1Q Rh3 Bb5 Nd3 Rb8 Bc6 Qd2 Rc8 Nc4 d8R Bb4 Rd7+ Be7 Kg5 Qf8 Re8 Nh6 Qf3 Rg8 h8Q Rc8 Qg3 Qg2 f5 Qd5 Qb8 Ne2 Rd6 Bd8 Ree3 Be7 Rd8 Na5 Rd7 Ke8 Kg6 Nd4 Kh7 Kf7 Ra1 b1B Nb2 Bc2 Ra4 Qd8 Rb4 Rf8 Qg8+ Ke8 Qh8 Bba4 Qg8 Nb5 Kh8 Na7 Rc7+ Q8d7 Rb7 Bcb3 f7+ Kd8 Rc7 Bg5 f6 Re8 f8R Qe7 f7 Qed7 Rd3 Ke7 Rde3+ Kf6 Rb7 Re4 Rd8 Rd4 f8R+ Kg6 Rf5 Qe7 Rdd7 Qd8 Qf8 Rc7 Bb5 Rcc4 Bc6 Bb5 Rdf7 Ba6 Rbe7 Bc8 Rb7 Bd7 Rc7 Be8 Rb7 Rd2 Rbd7 Rdd4 R7f6+
5rRb/n1k1b3/3N1Rpq/2B1R2r/5p1b/3Np2N/2K1Pbn1/QRNR3b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 g6 cxd5 g3 f5 Bxf5 Bh3 Bc8 Be6 Bb7 Bc8 Bxc8 d4 Kd7 Kd2 c5 b4 f5 h4 e5 h5 a5 h6 e4 b6 e3+ Kc2 f4 d6 g2 d5 c4 b5 a4 b7 a3 h7 c3 b6 a2 Rh5 Nf6 Nh3 g1B Nd2 Ra4 Nb3 Bf2 Re5 Be7 Rb1 a1B Ba3 Nh5 Bc5 Nc6 b8R Na7 b7 Rf8 h8R Ra5 Rg8 Ng3 Nc1 Nf5 Ra8 Qc7 b8N+ Kd8 d7 Nh4 Qf1 Ng2 Na6 Beh4 Nb4 Qb7 Qh1 Kc7 d8R Qc6 Nbd3 Bb7 Qe1 Qf6 Rd6 Qg7 Rf6 Qh6 Rd8 Bb2 Kb3 c2 d6+ Kc6 d7+ Kc7 Qc3 Ba3 Qa1 Bf3 Na2 c1B Kc2 Bcb2 Nac1 Bc3 Ra8 Rb5 d8N Be4 Nb7 Bcb2 Bd4 Be7 Nd6 Ra5 Rd8 Rd5 Ree6 Rh5 Bc5 Bb7 Rf5 Bh8 Ree5 Bf3 Rf6 Ne1+ Kb2 Bh1 Kb3 Ng2 Kc3 Re8 Kc2 Rf8 Nb2 Rf7 Nf5 Nc8 Rd1 Na7 Nd6 Rf8 Nbd3
1KnbN2B/2n2b2/b1N5/QB1R1bp1/2N3r1/1NBp1Pp1/2qr2r1/3NB1k1 b - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 e4 f5 exf5 c5 a4 cxd4 b5 b6 Ra2 Ba6 Rb2 Bb7 Rb4 axb4 a5 Ba6 axb6 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 g5 c4 d5 h5 d3 h6 d2 b7 g3 h7 b3 b6 d4 f3+ Ke3 f6 Kf2 f7 b2 Ne2 Be6 Qa4 d1B Nbc3 b1B Bd2 Bg4 Nc1 Bc8 Qa5 Bg7 f8N e5 Ne6 e4 Nb3 e3 Nc7 e2 Ne8 Na6+ Kc6 e1R b8B Nc7 c5 Re2 b7 Bbf5 Rg1 Re4 Bb5 Rg4 Rf1+ Kg2 Be1 Ne7+ Kb6 Qd7 c6 Bf6 Rf2+ Kg1 Rd2 Be2 Nd1 Bc4 Ba7 Bce6 b8N Ba6 Rd3 Rg8 h8B Qc8 Rd2 Bf7 Rd3 Ne6 c7 Rg7 Rd2 Rh7 Rd3 Rh2 Nc6 Rg2 Bb8 Qd7 c8N Nc7 Ncd6 Qc8 Nc4 Ra7 Re3 d3 Re5 Rd2 Rd5 Rg2 Kc5 Rb7 Kd6 Rd2 Ba4 Rb4 Bb5 Ra4 Kc5 Raa2 Kb6 Rg2 Ka7 Rad2 Ncd4 Ng8 Nc6 Bd8 Bc3 Ne7 Bh8 Ne6 Bbe5 Qc7+ Ka8 Nc8 Nb8 Qc5 Nc6 Nc7+ Kb8 Qf2 Beg7 Qc5 N4e5 Qc1 Nc4 Qc2 Bc3
n1N5/1q2nk2/N2nN1bK/2pR4/1RP1N3/B1p1n2Q/QrN1p2N/1q1r1b2 b - - 0 1 legal: proof: c4 b5 e4 d5 a4 f5 axb5 fxe4 Qb3 g6 Qc2 d4 Qc3 dxc3 h4 Bh6 f4 Qd6 g4 Qd8 f5 Bf4 g5 Be6 f6 Nc6 Bh3 Bc8 Bf5 gxf5 g6 Bg5 hxg5 Nb8 Ke2 h5 Ke3 a5 Kf4 c5 b4 e6 d4 e3 b6 e2 b7 e1Q g7 a4 f7+ Ke7 f8N a3 b5 h4 d5 h3 b6 h2 d6+ Kf7 d7 a2 Na3 Ne7 g8N Na6 b8N Nc7 Rb1 a1N b7 Nc2 Nf6 Ne3 Nc2 Ra2 Rb4 Na8 Ne4 Rb2 Na6 Qb6 b8Q Qb7 d8Q Qf1+ Nf3 e5+ Kg3 Rg8 Kh4 f4 Kh5 Bf5 Qd7 Bg6+ Kh6 Qe1 Rf1 h1N Qh3 Ng3 Ne6 Rd8 Qa7 Rd1 Nh2 f3 Rf2 Qf1 Rd2 f2 Rd5 Qd3 Nf4 f1B Ne6 Rb1 Ba3 Rb2 Ncd4 Qb1 Nc2 Ne2 Nec7 Nd4 Ne6 Nb6 Qa8 Nb5 Qa7 Nd6 Qa8 Bh7 Qa7 Na8 g6+ Kg8 g7 Kf7 g8N Bg6 Ngf6 Be2 Nd7 Bf1 Nef6 e4 Nb6 Ng2 Nc8 e3 Ne4 e2 Qb6 Ne3 Qa5 Rc1 Qa4 Re1 Qb3 Rd1 Qa2
2q1R1r1/1Rb1K3/1RN1pNNr/R4k1P/b2N1N1n/1Bp5/2p5/q1nrr1Q1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 exf5 dxc4 g4 h6 f4 Nc6 b3 Nb8 Bb2 Nc6 Bf6 gxf4 g5 Nb8 g6 Na6 Bh4 Nb8 Bg5 hxg5 Kf2 Kd7 Kf3 a5 Kg4 c5 d4 a4 h4 f3 d5 a3 h5 e6 g7 a2 d6 f2 b6 c3 b4 c4 b5 c2 b7 c3 f6 Na6 b8R Ra7 f7 Ne7 g8N Ng6 b6 Bh6 b7 Nc5 Ne2 Nh4 Nf4 Nb3 Na3 Nc1 Nb5 Ra8 Bc4 f1R Bb3 Re1 f8N+ Kc6 Rb1 a1Q Nf6 Bd7 N8g6 Qc8 Qd4 Bg7 Qg1 Rh6 Rb2 Be8 d7 Bf8 d8R Bd6 Ra2 Bc7 Ra5 Bd7 Rh2 Rd1 Rf2 Kc5 Re8 Bc6 Nd6+ Kd4 Nb5+ Ke3 Ng8 Ke4 Rd2 Bd7 Rd6 Re1 Rb6 Rd1 Kg3 Kf5 Nf6 Ng2 Kf3 Nh4+ Ke3 Re1+ Kd4 g4 Kc4 g3 Kc5 Bd8+ Kd6 Bc7+ Ke7 g2 Qe3 g1R Qd4 Rg5 Qg1 Ra7 Ra8 Rg3 b8N Rd3 Nc6 Rdd1 Rab8 Ra8 R8b7 Rb8 Nce5 Ra8 Na7 Ba4 Nb5 Rb8 Nc6 Ra8 Rf8 Rb8 Rba7 Qb7 Rd8 Qa8 Rab7 Rc8 Rd7 Rg8 Rd8 Qb8 Re8 Qc8 Nbd4#
2KRB1b1/b2Q1rP1/5np1/BR3R2/nr1R4/1Np1n3/1q3k1p/BB1Rn1q1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 g4 Nf6 g5 Bb7 g6 Bc6 g7 Bd7 Na3 Bg4 Nc4 Ng8 Ne5 Bc8 Ng6 fxg6 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 a5 d6 f3 b6 f2 b7 h3 d7 a4 Ke6 Kd4 b4 c5 e5 a3 b5 h4 b6 h2 Bd3 f1N Bb1 c4 Bb2+ c3 d3 Ke3 d4 a2 d5 h3 d6 Ra3 Ne2 Rh4 Nc1 Na6 b8R Kf2 b7 Rb4 Nb3 Ne3 Qd5 Qc7 Rd1 h1Q Rd4 h2 Ra8 Qe1 b8R Qg1 Rb5 Qb8 Ra7 Bb7 d8B Nf6 d7 Bc5 Ba5 Ba8 Rc7 Ba7 d8R Nc5+ Kd6 Na4 e6 Bc6 e7 Bb7 Qe6 Bd5 Qd7 Bg8 e8B Qb7 Rcc5 Qbg2 Bd3 Qb7 Rc1 a1N Bb1 Nac2 Rcd1 Ne1 Ba1 Qbg2 Kc7 Ra2 Kc8 Rd2 Qh3 Rd3 Re4 Rd7 Red4 Rf7 Qd7 Qd5 Rdc4 Qd2 Rd4 Qb2 Rf5+
3B1K2/2Rp2r1/Rn3p1R/1kr2p1r/1R5n/qP1RQ1bN/5BqB/1rbB4 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 b5 axb5 e6 g4 Nh6 f5 exf5 g5 Ng8 g6 h5 Nd2 f6 Ne4 Ke7 Nf2 Bb7 Ng4 hxg4 Bg5 Bd5 Bc1 Bf7 gxf7 Qb6 Kd2 Qc7 Ke1 Qd8 Kf2 Kd6 Kg3 Kc5 c4 a5 h4 g5 e4 d3 h5 d2 e5 a4 h6 a3 b6 a2 b3 Be7 f8B Bd6 h7 Qe8 b7 Qc8 Be7 Nh6 Bd8 Ng8 Be2 Ne7 Rh6 Na6 b8B Qc6 Qe1 d1R Nh3 Ng6 Rh4 Rd5 Bd1 Nc7 Qe3+ Kb4 c5 Kb5 Rh6 Nh4 Ba3 Qb7 c6 Rc5 Ba7 Rg8 h8R Nd5 c7 Rg7 c8R Nb6 Rc7 Qa6 Bb4 Qa3 Bb8 Ra4 Be1 Rf4 e6 Rb4+ Kf2 g3+ Ke2 g2 Kd3 g1Q e7 g4 e8R g3 Re4 g2 Bf2 Bf4 Rc4 Bg3 Kd4 Qh2 Rg8 g1R Re8 Ra4 Rb4+ Ka5 Re6 Qg2 Rc1 a1B+ Rc3 Bb2 Rd6 Bc1 Rd3 Rh1 Rdc6 Rc2 Re6 Rb2 Kc5 Rb1 Red6 Re7 Rdc6 Re5+ Kd6 Rc5+ Ke7 Ka6 Rc4 Kb5 Kf8 Rh2 Rg4 Re4 Rcd6 Re7 Ra4 Rh7 Ra6 Rg7 R6d4 Rh1 Ng5 Nf3 Rc8 Rh5 Nh3 Bh4 Bh2 Bg3 Rc7 Nh4 Rb4+
1RqN1N2/N1r3nq/1pP1N1B1/3r1pn1/Q6k/Bq4bN/p1N2n2/4rQK1 b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 b5 b4 bxa4 b5 h5 gxh5 Nc6 b6 Nb8 c4 d6 b7 Nc6 d3 Nb8 c5 Bf5 Ra3 Be6 Rb3 Bc4 Rb6 cxb6 dxc4 Qc8 Nh3 Qc7 Ng1 Qd8 Kf2 Ke7 h4 Kf6 e4 g5 h6 a5 c6 d5 h7 d4 h5 f3 c5 a3 h6 g4 c7 d3 c8N a2 c6 a1R Qd2 g3+ Ke1 a4 Rh5 a3 Re5 g2 Kf2 a2 Qe1 d2 Ba3 d1Q Qa5 Ra7 Nh3 g1N Bd3 Nd7 b8N Ne7 Qa4 Nf5 Re8 Rc7 Na7 Qb3 e5+ Kg6 e6 Kh5 e7 Nc5 Nd7 Ng7 Be4 Kh4 Bg6+ Ne4+ Kf1 Rg8 h8N f5 h7 f2 Nf7 Qc8 Nd8 Nf3 h8N Ng5 Nhf7 Rh8 Ne6 Rg8 Kg2 f1Q+ Kh2 Qff3 Kg1 Qh5 Rd8 Qh8 e8Q Bd6 Ndf8 Qh7 Qd7 Bf4 Qd1 Nf2 Qf1 Rh8 Re8 Rg8 Nfd8 Rh8 Bb4 Bg3 Na3 Re1 Nc2 Rd7 Re7 Rd5 Rb7 Rg8 Rb8 Rh8 Nd7 Re8 Ndf8 Re7 Nc7 Rf7 Nce6 Rc7 Ba3+
1kn2nq1/1rB2rBp/4np2/N1B3qq/K4pB1/2r2PBB/6bR/NQ5Q b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 c4 e6 h4 gxh4 d4 cxd4 c5 e5 Ra3 Bd6 Rf3 Bc7 Rf4 Bb6 cxb6 exf4 Kd2 a5 Kc2 d6 Kb3 Kd7 g4 h3 e4 h2 g5 d3 e5 d2 b7 Kc7 b6+ Kc6 e6 Bd7 e7 Ra7 e8B Ne7 g6 Nc8 g7 Qg5 Na3 Rf8 Nc4 a4+ Ka3 Rh8 Nf3 Rf8 Qe1 d1Q g8Q Qdd5 Nfd2 Qe6 Qg6 d5 f3 d4 Bh3 d3 Nb3 d2 Nca5+ Kd6 b5 d1R Qb1 Rd3 Be3 Rc3 Bf2 f6 Bh5 Qe8 Bg3 Rf7 B5g4 Qeg8 Kb4 a3 Ka4 a2 Na1 Bf5 Qf1 Nd7 b8B+ Rac7 b7 Nf8 b6 Bd3 Qfe1 Bf1 Ba7 Bg2 Qec1 Rce7 b8B+ Rec7 Nc2 a1N b7 Nb3 Na1 Nd4 Bc5+ Kd5 Bba7 Nde6 b8B Rce7 Bbd6 Rb7 Be7 Ke5 Bab6 Kd5 Bbd8 Ke5 Bc7+ Kd5 N5b3 Kc6 Na5+ Kd7 Re1 h1Q Re2 Qe1 Rf2 Qee5 Qh1 Qh5 Re2 Qeg5 Rd2+ Nd6 Rb2 Kc8 Rf2 Bf1 Rh2 Bg2 B7b6 Kb8 Bbd8 Ng6 Bf8 Nc8 Bg7 Ngf8 Bc7+
r1n1b1r1/1BKQ3q/1BB5/2R2npB/3BpPN1/1k6/r1Q3p1/r1Bqr1R1 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 a4 hxg4 axb5 f5 b6 fxe4 c4 e6 d4 Nc6 b5 Ke7 Nc3 Ke8 Na2 Rh4 Nb4 cxb4 c5 Nb8 c6 Bc5 dxc5 Rh8 Be2 e3 h4 d5 Ra5 Ke7 f4 g5 c7 Qd7 b7 b3 c6 Kd6 h5 Kc5 h6 Kb4 h7 b2 b6 b1R Qc2 g3 Bh5 d4 Ke2 g2 Kd3 e2 Ke4 e5 Nf3 d3 Nh2 d2 Rg1 d1Q Ng4 Nh6 Rd5 Rg8 h8B a5 Bg7 Na6 b8Q a4 b7 a3 Qa7 a2 b8B Nf5 Rc5 Rb2 Bf6 Bb7 c8B a1R Bc7 Rba2 Bb6 Qh7 Bd7 Nb8 Bde8 Bc8 c7 Bd7 c8B Nc6 Qc7 Nce7 Bb7 Nc8 Qd6 Qe1 Kd5 e4 Bd4 Qd1 Qe6 e1R Qe7 Be6+ Kc6 Bf7 Kc7 Bg6 Bec6 Be8 Qf2 Kb3 Qd7 Qh6 Qd2 Qh7 Qc2+
2qR1rR1/1rpb2r1/kNP5/Nqq1pNp1/4nNK1/2n3Q1/r1R1BR2/4N3 b - - 0 1 legal: proof: f4 b5 e4 f5 a4 d6 e5 dxe5 axb5 exf4 g3 f3 Kf2 Kf7 Ke3 f2 Ke2 Ke8 b3 f4 Bb2 e6 Bf6 h6 Bg5 hxg5 Qe1 f3+ Kd1 Nf6 Kc1 Bd6 Qd1 Bf4 gxf4 Ng8 c4 Kd7 d4 a5 Kd2 g6 Ke3 g4 h4 g5 c5 a4 b4 g3 h5 e5 c6+ Kd6 d5 g2 f5 a3 f6 a2 h6 Na6 f7 Nb8 f8N Rh7 b6 Bb7 b5 Kc5 d6 Qe8 d7 Rg7 d8R Ra6 h7 Qh5 h8N Ra8 Nd2 Qg4 Nb3+ Kb4 Rh2 Nf6 Ne6 Rf7 Qd3 Nbd7 Be2 f1Q Na5 f2 Nd4 Rg7 Nf5 Ne4 Rc1 a1R Rc2 Bc8 b7 Nb6 b8N Rb1 Ng6 Na4 b6 Nac3 b7 Bd7 Nf3 g1Q Nf4 Kc5 Ne1 Kb6 Ng3 Qgh3 Kf3 Qh8 Nf5 Rb2 Nb3 Raa2 Na5 Qf8 Qe3+ Qc5 Rg8 Qh1+ Rg2 Qh8 Kg4 Rb5 Qg3 Rb4 Bf3 Qfb5 Be2 f1R Rf2 Rbb2 Na6 Rb1 Nb4 Ka7 Nbd5 Ka6 b8R Rbb2 Rge8 Qg8 Nb6 Rb3 Re6 Qc8 Rg6 Qd6 Nbd5 Qc5 Nfg2 Qbc4 Rf3 Qb7 Rd8 Rf7 Rgg8 Qc8 Rf4 Rb7 Nb6 Rf8 Rf3 Rh1 Bd3 Rh7 Nf4 Rg7 Rff2 Q4b5 Be2
NQN2B2/b4p1K/Bbp1nb1N/3br1k1/2bN4/2Q2N1P/1n1N2p1/b1Rr4 b - - 0 1 legal: proof: a4 d5 f4 b5 axb5 e5 h4 exf4 c4 dxc4 b4 Qd7 Ra6 Qh3 gxh3 h6 Rg6 h5 Rg4 hxg4 Kf2 Ke7 e4 Kf6 d4 g5 d5 a5 b6 c6 d6 g3+ Kf3 g2 b5 c3 b7 c2 h5 a4 b6 a3 h6 a2 e5+ Kg6 e6 a1B Kg4 f3 d7 f2 d8N Be7 h7 Bef6 Qd4 Ra5 Ba6 f1B Ba3 c1B Nf3 g1B Qc3 Bf2 Nbd2 Be2 Bf8 Nd7 b8N Bc4 e7 Nc5+ Nd7 Na4 e8N Ne7 b7 Ba7 b8Q Nf5 Nb6 Ng7+ Ne6 Nb2 Nc7 Re5 Nca8 Rg8 h8N+ Kh6 Nb1 Be3 Ng6 Bd7 Nc8 Beb6 Nbd2 Bd5 Bd6 Rd8 Rc1 Bc4 Ngh4 Bd5 Kg3 g4 Kf4 g3 Ned4 g2 Bf8 B7e6 Nhf5+ Kg6 Kg4 Bc4 Kf4 Bed5 Nh6 Ne6+ Kg4 Bg7 Nhf5 Kf6 Kh5 Bh8 Kh6 Rd6 Kh7 Bg7 Ng1 Kg5 Nh6 Bf6 Ngf3+ Kh5 Ndf5 Be4 Nf1 Rd1 N1d2 Bed5 Ne1 Kg5 Nd4 Kh4 Nef3+ Kh5 Nh2 Kg5 Nhf3+
7r/q1prR2p/n2N1p2/K1p3R1/b5NQ/1R2BnN1/4nP1N/R1bN2rk b - - 0 1 legal: proof: c4 b5 d4 g5 a4 e5 dxe5 d6 c5 dxc5 axb5 Qe7 Ra5 Qd7 Ra1 Qd8 h4 gxh4 b4 a6 b6 Be6 b5 Qd5 b7 Qd6 e3 Qd8 b6 Bc8 Bb5+ axb5 g4 Ke7 g5 Ke6 g6 Kf5 e6 Ke4 e7 b4 e8R+ Ne7 g7 f6 g8N b3 Ke2 h3 Nf3 h2 Qd4+ Kf5 Kd3 b2 Kc4 Qd5+ Kb5 Qe5 e4+ Kg4 Nh6+ Kh3 Be3 Kg2 Rg1+ Kh3 Nc3 b1N Nd1 h1R Rg5 Qd5 e5 Qa2 e6 Ng6 e7 Qa7 Ng4 Kg2 Nfh2 Na6 b8R Rg1 b7 Kh1 Ka5 Nc3 Qf4 Bg7 Qg3 Ne5 Qh4 Rf1 Rg8 Bh6 e8N Rg1 Nd6 Nf3 Re8 Bd7 Re7 Na4 Rf8 Re8 b8N Rd8 Nc6 Nc3 Nd4 Ne2 N4f5 Ba4 Rfe8 Rd7 Rb8 Ned4 Rb5 Ne2 Rb3 Rg2 Rg6 Ng5 Bd2 Nf3 Rg8 Be3 Rg5 Rg1 Bc1 Bd4 Bf4 Bb2 Be3 Bc1 Ng3+
5n1q/5b1r/1R1K1P1R/1R1p4/Q1bN4/RpNp2Bq/bpnR4/1k3RQr b - - 0 1 legal: proof: d4 a5 b4 axb4 e4 c5 e5 cxd4 Ba3 g6 Bc1 f6 exf6 Kf7 Bf4 Ke6 f7 Kd5 Bc1 Kc6 h4 Bg7 g4 Qa5 f4 Kc5 g5 Be5 f5 Qa7 f6 Bh2 Bh3 Qa5 Bg4 Qd8 Bf5 gxf5 g6 Kc6 Kf2 Bf4 Ke1 Bg5 hxg5 Qc7 Nh3 Qb6 Ng1 Qd8 Ke2 Kb5 Kf3 Ka4 Kf4 h5 Ke5 b5 f8Q b3 c4 b4 a3 d3 c5 f4 c6 f3 c7 f2 g7 f1B g6 h4 Be3 h3 Bg5 h2 Ra2 Rh7 Nf3 Nh6 g8R Nf5 g7 Nd4 Bh4 Nc2 Rh8 b2 g8R Kb3 a4 e6 Kd6 e5 a5 e4 a6 Bb7 c8R Bd5 a7 Bf7 Rhg1 h1B Ra6 Be2 Rac6 Ka2 Nd4 Bg2 Rh1 Bh3 Bg3 Bhe6 Qe1 Ka1 Qf1 Ba2 Rg5 b3 Rb6 Qe8 Rgb5 Qe6+ Kc7 Qh3 Qg1 d6 Qg8 Nd7 Qe8 Nf8 Nc3+ Bf1 Nd1 Kb1 Rd8 Rc8+ Kb7 Rc5 a8R Rch5 Kc6 e3 Rh2 R7h6 Rf5 Qg4 Rf4 e2 Kc7 Bg2 Qb5 Bgd5 Rf1 Bc4 Ra3 Qe6 Rhf2 Rh1 Qa4 R6h2 Ra8 d5 Ra5 Qg4 Kd6 e1Q Bf4 Rh4 Rd2 Qh3 Rab5 Qee3 Bh2 Qh6 Bg3 Qg7 Rh5 Qh8 Rh7 Rg4 Rh4 Rg7 Rh6 Rh7 Nc3#
3n3R/N7/1k1p1K2/6B1/b1BR1n1R/1Pqp2bp/QbRRrq1p/1B3B1r b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 h4 gxh4 b3 a5 Na3 a4 Nc4 a3 Nb2 axb2 Ke2 b1Q Kf3 e5 Ke4 h5 f4 d6 g4 Kd7 g5 Kc7 g6 h3 g7 h4 f6 h2 f5 Ra5 b6+ Kc6 b7 Qb6 f7 Qb2 c4 Rh7 c5 Ra6 f6 Qa5 Ra2 Bd7 Ne2 Rb6 Qd2 Bc8 Nc3 Bg4 Nb5 Ne7 g8B Bg7 f8R Qac3 f7 Ng6 Na7+ Kc7 c6 Ra6 Qe2 Nf4 Rc8+ Kb6 f8R Bd7 c7 Ba4 Kf5 Nc6 Bc4 Nd8 Rh8 Ra5 Qg2 Qf2 Rd2 Rh6 Kg5 Re6 Kf5 h3 Rh4 Ra6 Rg1 e4 b8R+ Ka5 Rb4 e3 Rcb8 e2 c8B e1B Bb7 Bf6 Be4 Be5 Bb1 d3 Qa8 Bd4 Rg2 Re2 Rc8 Rc6 Rg8 Rc7 Rgh8 Rg7 Rc7 Rg1 Qg2 Re5+ Kf6 Rh1 Rb5+ Ka6 Rd5+ Kb6 Rc8 Bc5 Rd4 Ba3 Qg5 Re2 Qa5+ Kb7 Rc5 Bb2 Rc8 Be8 Qa2 Ba4 Rc7+ Kb6 Ba6 Qb4 Rcc2 Qc3 Bc4 Qg1 Nb5 Bg3 Na7 Qf2 Rd1 Ng2+ Bf4 Qfe1 Bh6 Nf4 Rdd2 Qf2 Bg5
1KQ1QN2/p4Nn1/2p1Np2/N1B5/Pp1N1rr1/1q2n1R1/1N1k1q2/n1nr1B2 b - - 0 1 legal: proof: c4 c5 b4 cxb4 a4 e5 f4 exf4 c5 Qc7 c6 Qd8 c7 Bd6 Ra3 Be5 Rc3 Bd6 Rc6 Bf8 h4 dxc6 g4 f6 g5 Be6 Rh2 Kd7 g6 Bf7 gxf7 g5 Rh1 g4 Qb3 Bh6 Qd1 Bg5 hxg5 Ke7 Bb2 Kd6 Bc1 Kd7 Kf2 Kd6 c8N+ Kc5 f8N Kc4 d4 b5 d5 h5 d6 h4 g6 f3 Ke3 b3 Ke4 b2 d7 g3 g7 b4 Nc3 h3 Kf5 b1Q+ Ke6 h2 Kd6 f2 Nf3 g2 Nd4 g1N e4+ Ne2 e5 Rh4 e6 Rf4 e7 Na6 e8Q Ne7 g8N Qb3 Be3 Qb6 d8N Nc5 Rg1 h1R Nh6 Rb8 Qe1 Kd3 Nd8e6 Rhh4 Qd7 Rhg4 Rg3 Rb7 Nd1 Rb8 Bh3 f1N Nf7 Nc1 Bg1+ Ne3 Bf1+ Ne2 Qe8 Rb7 Qf2 Kd2 Nb2 Rc7 Qf3 Nc1 Bf2 Qd1 Qe4 N5b3 Qf5 Na1 Bg1 Qb3 Bf2 Qa6 Nb6 Qe2 Bg1 Qf2 N6c4+ Kc3 Na5 Kd2 Ng7 Rc8 Nge6 Rd8+ Kc7 Rd5 Kb8 Rd7 Qb5 N7f5 Qb7 Ng7 Qbc8 Kc3 Nc2 Rd1 Ncd4 Kd2 Nh7 Qf3 Nb5 Nc4 Bc5 Qf2 Nhf8 Ne3 Nbd4
8/p1Nqb1R1/KR1NQ3/2pB1qpb/nQp2Q1Q/P4kq1/2n1q2Q/Qb6 b - - 0 1 illegal: No possible last move
Q2R1B2/2p3K1/1p1N1p2/PR3r2/2r5/bQp3k1/1Q1nQQ1p/n1qqQ1qB b - - 0 1 illegal: No possible last move, all moves rejected
Nr2B2q/RB1r1p1n/QrB1N2K/2b5/1B2nPk1/1Bnb4/2Nqr1N1/2bn4 b - - 0 1 legal: proof: d4 b5 b4 c5 h4 cxd4 a3 g5 Ra2 gxh4 a4 e5 Ra3 e4 Rd3 exd3 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 Ke7 c4 Ke6 g4 a5 e4 d5 g5 h5 g6 a4 e5 Kf5 e6 h3 e7 h4 e8B h2 g7 a3 c5 a2 c6 a1B b6 h3 b5 Nd7 c7 Ra7 b7 Qh4 b8N Qe7 b6 Ndf6 b7 Qe5 Qa4 Kg4 Nc6 Bb2 b8N Nh7 Nd7 Bc5 Bg2 Ba6 c8B Ngf6 Nb6+ Rd7 g8B Bc4 f4 Ne4+ Kd1 d2 Qa6 Bd3 Bb7 Qh5 Nf3 Qh4 Re1 h1R Nd8 h2 Na3 Rg1 Na8 h1R Bc6 Rh2 Ne6 Qh3 Bh1 Re2 Nc2 Bba3 Bb2 Rgg2 Bc3 Bc1 Bb7 Qh6 Nh4 Qg7 Qb5 Rh2 Ng2 Rh6 Qa6 Qe5 Ng5 Rb6 Bb4 Bb5 Nc7 Ng3 Nf3 Kh5 Qa8 Rf2 Ngh4 Ba3 Ng5 Nf8 Ne3 Rg2 Re2 Bc1 Bh7 Ba6 Bb1 Nh7 Ba2 Rf8 Qa7 Qh8 Nge6 Bb5 Bb3 Rf2 Kc2 d1Q+ Kb1 d3 Na8 d4 Bhc6 d2 Nhg2 d3 Qa4 Re7 Bed7 Rb8 Be8 Rd7 Qa3 Qe1 Qa2 d1N Qa1 d2 Kc2 Nc3 Qa5 Ba6 Qb5 Nd5 Kd3 d1N Ra2 Re2 Nc2 Kg4 Qc4 Bb5 Ra7 Ba6 Qb5 Bd6 Qc4 N5c3 Qb5 Qf8 Kd4 Nge4 Qa5 Be7+ Ke5 Qd2 Qa1 Bd3 Qa6 Kh5 Kf5 Bc5 Bc4 Qh8 Bb3 Kh6 Kg4 Kg6 Kh4 Kf6 Kh5 Kf5 Kh6 Kg4 Qa3 Ng3 Qa5 Nge4 Qa6
1rNk1Rq1/1nN3bp/2rNRp1q/2q2P2/r2BNQ2/6n1/1K3Rrr/1R1R1b2 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 axb5 e5 h5 e4 h6 gxh6 e3 h5 Bc4 h4 Bd3 exd3 Kd2 d5 g4 a5 c4 a4 f4 h3 b4 f6 g5 h2 c5 a3 g6 a2 g7 Bd7 b6 Na6 e4 Bc6 b5 Nb4 b7 Ra4 b8R Nh6 g8R Na6 b6 Bb5 e5 Nf5 e6 Ng3 c6 Nc5 c7 Nb7 c8N Qd6 f5 Kd8 Na3 Qc5 Rg5 Bg7 Rb1 a1Q Nf3 Qa2+ Bb2 Rf8 Re1 h1R Nc4 Rh2+ Kc1 d2+ Kc2 Ba6 Qc1 d1R+ Nd2 d3+ Kc3 Rg2 Ne4 Rdd2 Rd1 Rde2 Rg4 d2 Rf4 d4+ Kc2 Re8 Rf2 d3+ Kc3 Rh8 Ra8 Bb5 Ra6 Rg8 Rg1 d1Q Qf4 d2 e7+ Kd7 e8N Kd8 Nc7 Qc1+ Kd3 Re8 Rd1 Re6 Bc3 Rc6 Bd4 Rh2 Rf3 Reg2 Rf2 Na5 b7 Qb3+ Nc3 Qa2 b8R Nb7 Rb6 Ba6 Ne4 Bb5 Ke3 Ba6 Nc4d6 Qg8 Ra8 Bf1 R6b5 Qb4 Re5 Qcc5 Re6 Qbb6 Re1 d1R Rb8 Rd2 Red1 Rb2 Ra8 Rbb4 Kd2 Rb5 Bc3 Qe3+ Kc2 Qbc5 Rb8 Rba5 Kb2 Ra8 Qg5 Qf4 Bd4 Qh4 Qf4 Qh6 Ne7+ Kd7 Rf8 Rb8 Nce8 Kd8 Nec8 Qf7 Nc7+ Qe8 Rf7 Qg8 Rf8+
2N1bKb1/N1BQ1p2/N2p2q1/1N2rr1q/1n1k2rn/3P2N1/3NR1r1/QR2b2q b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c6 b6 Bh6 b5 Qf6 b7 Bg7 e3 Bf8 b6 Qd8 Bb5 cxb5 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 a5 c4 b4 g4 f3 e4 h3 g5 a4 c5 h2 c6 b3 g6 a3 c7 a2 g7 b2 Qe1 f2 Qe2 f1R Qg4 Nh6 g8N Ra5 Nc3 b1B Qd1 Qf6 Ne7 Na6 b8N Nf5 b7 Kd4 e5 Rg8 e6 Nb4 Na6 Rg2 b8N Re5 Qe1 Be4 Rb1 a1R d3 Ra4 Bf4 Bh6 Bg3 Bd2 Qd1 Bcb7 c8N Be1 Rb2 h6 Qa1 Bbc6 Rc2 Rf4 Re2 Rg4 Bf4 Raa5 Bg3 Rec5 Bc7 d6 Bd8 Be8 Bc7 Nh4+ Nf5+ Ke5 e7 Rab5 Ne3 Bh7 Nf1+ Kd4+ Re5 Bc6 e8Q Bg8 Nd2 Qe6 Qd8 Be8 Qd7 Rd5 Rg5 Re5 Nge2+ Ke3 Rf1 h1Q Ng3 Kd4 Rg1 Rf5 Rf1 Rbe5 Nc6+ Ke3 N6a7 Kd4 Rf2 Qh2 Ne7 Rgf4 Nde4 Bd2 Qd1 Rg1 Rf3 Qe2 Nf1 Ng2 Qa1 Qd1 Nec8 Qf6 Neg3 Rfe4 Nh1 Re2 Re3 Qg6+ Kg4 h5+ Kg3 h4+ Kg4 Qg7 Kh5 h3 Qc6 h2 Qd7 Rf3 Rf5 Qg3 Kh6 Nh4 Rg5 Ref2 Kg7 Rff5 Kf8 Qh5 Re2 Qg2 Rg3 R2f4 Rf3 Qgg6 Nhg3 h1Q Rff2 Rg4 Re1 Qhh7 Rb1 Be1 Re2 Rg2 Nd2 Qhh5 Ncb5+
2k2Q2/B4RN1/1b1K1Rb1/1QB1BB2/pb1nrnb1/n5rq/P1pB4/1b1Bb3 b - - 0 1 illegal: No possible last move
3n1bB1/3K3B/1N3qr1/1RN2p2/nB1pBP2/nn4nb/2QN1bB1/2kNb1r1 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 g4 c5 dxc5 h5 Ra3 hxg4 Rd3 Rh6 Rd5 Rh8 Rd4 exd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 b5 h4 g5 c4 d3 f4 d2 a5 b3 a6 g3 a7 b4 h5 g4 h6 b2 h7 b3 c6 g2 c5 g3 c7 Nh6 c6 Qf6 Nh3 g1B Bg2 Rg8 h8N Bf2 Ng6 Be1 Ne5 Rg6 Nd3 d6 Qc2 d1N Nd2 b1N e3 b2 Nhf2 Na3 Rg1 Bd7 c8B b1N c7 Nb2 Nd1 Nc6 e4+ Kg4 e5 Nd8 e6 Na4 e7 Nf5 Be4 g2 e8B Ng3 Nc5 Bf5 Rf1 g1B Be6 Bgf2 c8N Rb8 a8B Rb2 Ndb3 Nd2 Nb6 Rb1 Bb2 Ra1 Bc3 Rc1 Bb4 Ra1 Na5 Nb3 Nac4 Rb1 Bec6 Rc1 Bd3 Kf3 Rh1 Ra1 Rh5 Bh3 Bdf5 Rc1 Nd2+ Ke2 Be4 Qe7 Re5 f5 Bg8 Qf6 Be8 Nf7 Kc6 d5+ Kd7 d4 Bh7 Nd8 Bf7 Ra1 Bfg8 Rb1 Ne6 Ra1 Rb5 Rc1 Qc7 Ra1 Bg2 Kd3 Bac6 Kc2 Nc5 Kc1 Bce4 Rb1 Ne3 Kb2 Na6 Rc1 Nb1 Bc3 Qc5 Rg1 Nd1+ Kc1 Qc4 Na5 Nc5 Nb3 Qe2 Bce1 Qd3 Nc4 Nd2 Na3 Qc2+
n2k3Q/5K1p/N5R1/R2Nbn2/qRbb2bP/1q2rp1N/R1NR1B2/b3b1r1 b - - 0 1 legal: proof: e4 b5 d4 f5 f4 c5 a4 cxd4 axb5 g6 Be2 Bb7 Bg4 fxe4 f5 Ba6 f6 Bc8 Bf5 gxf5 Kf2 d5 Kg3 a5 Kh4 e5 Kg5 d3 g4 d4 c4 e3 h4 d2 b4 d3 c5 e4 b6 f4 b5 a4 b7 e2 b6 e1B c6 e3 c7 e2 Rh2 a3 Ra2 f3 Nh3 Na6 b8R Bf2 b7 Qd7 f7+ Ke7 Qa4 e1B Qd4 d1B Be3 Bg7 f8R d2 Rf5 Bb3 Ra5 d1Q Rg2 Bg1 Rgd2 Nh6 Bf2 Qa4 Qa1 Bd7 c8N+ Kd8 Qb2 Be5 Nb6+ Kc7 Qa1 Bc4 Qd4 Bc8 Nd5+ Kd8 Qc3 Re8 Qb2 Bf4+ Kf6 Nf5 g5 Nc7 g6 Re3 g7 Be5+ Kf7 Qdb3 Qc3 Ra7 Qa1 Na8 g8R+ Kd7 Rg6 Kd8 Rac2 a2 Na3 Ra6 Qc3 a1B Ra2 Re6 Nc2 Re8 Qd4 Rg8 Qe4 Bed4 Qe5 Bh2 Qh8 Nb6 Rba8 Bhe5 b8N Bd7 R8a6 Na8 Rb2 Ng3 Rab6 Bg4 Ra2 Nf5 Rb4 Bh5 Na6 Bg4 Nf4 Bh3 Rh6 Kd7 Rc6 Rg1 Rg6 Bg4 Qg7 Kc8 Nh3 Kd8 Qh8+
3kBqBn/1b3p2/1n1r2b1/RNr1r2B/b3pb2/3r2BR/K3QP1Q/3r2BB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 d5 Rh3 dxe4 Na3 b3 Nb5 c6 Rh5 cxb5 Rh1 b4 a4 h5 d4 b5 Kd2 e5 g4 h4 c4 b2 Kc2 b1R c5 h3 g6 h2 c6 e3 d5 e2 d6 e1R a5 Rh5 g5 Bh6 a6 Re4 d7+ Ke7 c7 Rh3 g7 Rd3 a7 Qf8 g6 Bb7 c8B Kd8 Nf3 Ne7 g8Q Bf4 g7 Ng6 Nd4 Nh8 Qh7 Rbb3 g8B Rbc3+ Kb1 b3 Ra3 b4 Qe2 b2 Ka2 b1R Ra5 Rc5 Nb5 Rd6 Be3 Rbd1 Bh3 Red4 Bg4 R4d3 Bh5 b3+ Ka3 b2+ Ka2 Ke7 d8B+ Ke8 Bf6 Nd7 Bh4 Nb6 Bg3 Kd8 Bd7 Rac8 a8B b1B+ Kb2 Rcd5 Be8 Rcc5 Bc1 Bc2 Ka2 Ba4 Be3 Bh6 Bef4 Bg5 Rf1 h1B Bh2 Bh6 Bg1 Be4 Bg3 Bf4 Qh6 Bg6 Qh7 Re6 Qh6 Rdd6 Re1 Ba6 Bh1 e4 Rf1 Ree5 Re1 Rb1 Rc1 Bb7 Rc3 Rbd1 Ra3 Bd2 Qf4 Bc1 Qh4+ Bg5 Qh2 Bf4 Rc3 R3d4 Bh4+ Rg5 Rh3 R4d3 Bg3 Rgd5 Qf3 Re5 Qe2
1rb3K1/N6Q/p3R1p1/PN1n3R/2R2rnR/1n1Nr1qB/1NR1r2n/1kb2b2 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 b4 f4 a6 a4 e6 h4 b3 c4 b2 d4 e3 h5+ Kf7 f5 e2 c6 e1R+ Ne2 g2 c5 g1N h6 g6 h7 g3 d5 g2 a5 Ne7 c7 Nh3 c6 g1N f6 Bh6 d6 Nd5 d7 Rf8 h8R Nf2 Na3 b1B Rh5 Bc1 Bh3 Bd3 Ra2 Nf3+ Kd6 e5 Nd4 e4 Rc2 e3 Nc4 e2 Nb2 Qe8 d8R Qe3 Nb5 Ng4 Re8 Nfh2 Re6 Nd7 Qd2 Qf2 Qh6 Rb8 Rh4 Nc5 Qh5 Bd7 c8N Nb3 Nca7 Bc8 c7 Qg1 Qg5 Qf2 R8h5 Qg3+ Qe5 Be4 Qf4 Bg2 Qe5 Bf1 Qf4 Kg8 f7+ Kg7 Rc4 Rd1 Rc2 e1R Rc4 Re8 f8N Re3 Nd7 Rd4 Ne5 Re2 Qg5 Rf4 Ned3 Kf7 Qh6 Re7 Re3 Kf6 Qh7 Re8 Rh6 Kf5 Re6 Re5 Rc2 Ke4 R6h5 Ke3 Rc3 Kd2 Rc4 Bd7 c8R Re3 R8c5 Bc8 Rc7 Nc3 R7c6 Kc2 R6c5 Kb1 Rc6 Rg8 Ke7 Rg7+ Ke8 Nd5 R6c5 Rgf7 Rc2 Rfe4 R5c4 Re7+ Kf8 Rf4+ Kg8 Re2 Rf6 R7e3 Re6
kB2Rb2/2R1rpr1/2nn1Pb1/rq1N4/QN3R1p/n1qR4/bN1N2Kp/1N6 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 axb5 e5 h5 e4 h6 gxh6 e3 h5 Bc4 h4 Bd3 exd3 Ra4 d5 Kf1 Kd7 b4 Kc7 g4 Kb7 c4 h5 f4 h3 b6 a5 e4 d2 f5 h2 b5 d3 c5 d4 e5 h4 e6 Bd7 f6 Nc6 Kg2 Nb8 g5 Nh6 g6 Rh7 g7 Qc8 g8N Nf5 e7 Be6 e8N Rg7+ Qg4 d1R Ne7 d2 Nf3 Ra7 c6+ Ka8 c7 Re1 Nd6 d1B Bf4 d3 Nc4 d2 Nb2 Bc2 Rc4 Re5 Rd1 a4 Re4 Qb7 c8R a3 Rd4 Ra5 Ra4 Qd5 b7+ Ka7 Rac4 Nc6 b8N a2 Na6 a1N Rd4 Be4 Rf1 Qc5 Rd3 Nc2 Bg3 Ba2 Re8 Nd8 b6+ Ka8 Nd5 Qb5 Bf4 Na3 b7+ Ka7 b8R Re7 Bd6 Nc6 Rbc8 Kb7 Bc7 Nd6 Bb8 Bg6 Rc7+ Ka8 Qa4 Qc4 Nab4 d1Q Re3 Qdd3 Nfd2 Qdc3 Rd3 Qb5 Rf4
2K1Nr1r/2nN4/R1p2pB1/1Qn3B1/rqQQ4/2r3Q1/1QP1p1br/2bQn1k1 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 d4 Kd6 h4 Kd5 g6 e5 b6 a5 b7 g3 b5 g2 b6 a4 h5 f6 g7 c6 h6 f3+ Ke3 f2 h7 a3 Bd3 f1R Nd2 a2 Nc4 a1R Nd6 Qe7 Ne8 Qb4 Nf3 Na6 b8Q g1R b7 Ne7 g8Q+ Be6 Qg2 Rf2 Qg3 Nc5 Bd2 R1a4 Rh4 Rg8 h8Q Rh2 Qhg7 Bh3 Q7g4 Bf1 Rh8 Bg2 Q4h4 Ke6 d5+ Kf5 d6 Rf1 Rh7 Rh8 d7 Bg7 d8Q Bh6+ Ng5 Rf4 Nf3 Rf8 Qd4 Nd5+ Ke2 Rg4 Bg5 Nc7 Ke3 Ra3 Rd7 Rc3 Rd5 N5e6 Ra5 Nc5 Ra6 Rh8 Bf4 Rgg8 Bg5 Rf8 Qh5 Ra7 Qf7 Ra8 Qfc4 Ra7 Qf2 Kg4 Qfe2 Kg3 Qb5 Na8 Qc7 Kh3 b8Q Kg3 Qg7 Nc7 Qbc4 Ra8 Qbb5 Ra7 Qc1 Kh3 Qb2 Ra8 Qd1 Ra7 Ke2 e3 Bg6 e4 Ne5 Kg3 Nd7 Kh3 Ke1 e2 Kf2 e1N Qgg8 Ned3+ Ke3 Ne1+ Kf4 e3 Kf5 e2 Qgd5 Kg3 Qd4d3+ Kf2 Q5d4+ Kf1 Qg3 Ra8 Bh4 Bc1 Bg5 Nb3 Rb6 Ra4 Ra6 Nd5 Ke6 Nc5+ Kd6 Nc7 Ke7 R2h5 Kd8 Rh2 Qde5 Kg1 Kc8 Bd2 Qd6 Bc1 Q6d4+
2rb1K1k/3q2r1/5QNr/pQQ2pQq/1Brp1R1r/nnNP3Q/b4Q2/5R2 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c6 b6 Bh6 b5 Qf6 b7 Bg7 e3 Bf8 b6 Qd8 Bb5 cxb5 Kf2 h5 Kf3 f5 c4 Kf7 g4 Kg7 c5 d5 e4 a5 c6 b4 e5 b3 g5 d4 c7 b2 d3 h3 g6 h2 e6 h4 e7 h3 e8Q Ne7 Qe1 Rh4 Nc3 b1R Qf7+ Kh8 Qf2 Na6 b8Q Be6 c8Q Nc6 b7 Rb4 Nge2 Be7 Ba3 Nc5 Rhf1 Rc4 Bb4 h1R Qcc7 h2 g7+ Kh7 Rae1 Na7 Qf6 Nb3 Qc5 Qd7 Qbc7 Rf8 b8Q Rc8 Qbb5 Bd8 Q7e5 Rg1 Qee3 h1R Ra1 Rg6 g8Q+ Kh6 Qe8 Kh7 Qee7+ Rg7 Qg5 Kh8 Qef6 Bf7 Rg1 Nc1 Rg4 Nb3 Rf1 Bg8 Qg2 Rh6 Qef2 R1h4 Qh3 Be6 Nd5 Bg8 Nec3 Bf7 Ne7 Be6 Kg2 f3+ Kg3 Bf7 Kf4 Bd5 Qbc6 Nb5 Ke5 Na3 Q6b5 Bg8 Rf4 Bd5 Qe2 f2 Ng6+ Kh7 Rc1 f1Q Qf2 Qd1 Rb1 Qh5 Rf1 Qf7 Kd6 Be6 Qe7 Bd5 Kd7 Qe6+ Ke8 Qd7+ Kf8 Bf7 Ne5 Kh8 Qef6 Na1 Qcb6 R4c5 Qe2 Ba2 Qf2 Rc4 Q6c5 Nb3 Ng6+
2K1Bq1n/2n3Bq/Q2b1rB1/1p1k3p/2b5/1P1BrpNB/b1B2R1n/n5RQ b - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 a5 d4 cxd4 b3 e5 Na3 exf4 Nc4 a4 Nb2 a3 Qd3 axb2 Qd2 Qe7 Qd1 Qd8 Kd2 Ke7 Kd3 Kd6 Kc4 b1Q Kb5 h5 a4 f5 e4 b6 g4 f3 c4 f2 a5 f4 e5+ Ke6 c5 d5 g6 d3 c6 d2 g7 f3 a6 d4 a7 d3 c7 Qd6 g5 Kd5 e6 Rh6 g6 Ne7 g8B Na6 g7 Rf6 Ne2 Ng6 e7+ Be6 e8B Nh8 c8B Bf7 Bfh3 f1N Bb2 Nh2 Rg1 Qd8 Qc1 d1N Bh7 d2 g8B Bd6 Bg6 Ne3 B8h7 d1B Ra2 Nc2 Ng3 Na1 Bcf5 Bc2 Bd3 Rc8 Qf1 Rc3 Qg2 Qe7 Qh1 Qf8 a8Q+ Kd4 Bc8 Bc4+ Kc6 b5 Kb7 Nc7 Bh3 Ke5 Qa6 Kd5 Bdf1 Re3 Bfd3 Qe1 Be5 Bb1 Rf2 Ba2 Kc8 Qb1 Bd4 Rf7 Bg7 Rf6 Be2 Qe4 Bd3 Qee7 Bc2 Qef7 Bgd3 Q7g8 B7f5 Qh7 Bg6
1K2NB1R/1p1p3B/kr1n1qN1/6Qn/pP6/1B1b3B/1nNN1qBr/n2b2b1 b - - 0 1 illegal: No proof kernel forced: wxLB
b1Qnk2n/R2R2R1/4N1pN/1qN3bn/5rPr/n1Rp1pn1/8/1NN1K1nB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Be3 cxd4 Bf2 h4 Bg3 hxg3 e4 d5 b4 f5 c4 a5 h4 d3 b6 g6 b7 g2 b5 f3 h5 f4 h6 d4 b6 a4 h7 a3 e5 a2 c5 Qd7 e6 Ra4 e7 Bh6 c6 Nf6 c7 Nh5 Be2 Bg5 Qc1 Nc6 b8N Nd8 b7 Qb5 Na6 Bd7 b8N Bc6 c8R Ba8 Rc3 Rb4 Nc6 f2+ Kd2 f1N+ Ke1 Ra4 Nc5 Nfg3 Bf3 Rb4 Ne2 g1N Bg2 f3 Qc2 Rc4 Nc1 Ra4 Rh4 Rb4 Bh1 d2+ Kf2 d1N+ Ke1 d3 Nd4 Rc4 Nde6 Nb2 Rh2 Rf4 Rh3 Rhf8 h8N Nc4 Nf7 Ne5 Nh6 Nef7 Rh2 Nh8 Re2 Nf6 Re5 Rg8 Rd5 Nfh5 Rd7 Rg7 Qa4 Rgf7 Qa6 Rh7 Qc8 Nf6 Nf7 Rh4 Nh6 Nfh5 Nf5 Kf7 e8R+ Be7 Rd4 Bf6 Rg8 Bg5 Rg7+ Ke8 Na3 Nf6 Nh6 Nfh5 Rb1 a1N Rdd7 Rd4 Rb4 Rf4 Nb1 Nc2+ Kd1 Rh3 Ra4 Rh4 Raa7 Na3 Ke1
4n3/7p/QrN1n1RK/2pq2nP/Q4rpk/B1r1nb2/rBBRBb2/1B3B2 b - - 0 1 legal: proof: d4 a5 c4 f5 b4 d5 g4 fxg4 bxa5 dxc4 Nc3 e6 d5 e5 Nb5 Be6 Nd4 exd4 Qc2 Bf5 Qd1 Bc8 Bg2 Kf7 Kd2 Kg6 h4 Kh5 f4 b5 a4 g5 e4 b4 f5 d3 Ke3 b3 f6 d2 f7 c3 a6 b2 e5 b1R a5 c2 d6 c6 e6 Nd7 a7 Qe7 a6 Rb2 Ne2 g3 Rh2 g4 Kf4 Bb7 Bf1 g2 Nd4 Nb6 d7 g1N d8Q Qe8 e7 Rb5 Qd6 Nd7 Bb2 Qd8 e8B c1R Qb3 d1N Rd2 Nc5 Ra5 Rb8 a8B Nf6 a7 Rb4 Ra6 Nh3+ Kf5 Ra1 Qa4 Ra2 Bd7 Bh6 f8B Be3 Be6 Qa5 Bec4 Bf2 Bce2 Rc4 Qe6 Rc3 Qec4 Rg8 Rb6 Ne8 Qa6 Ng7+ Kf6 Ne3 Bd6 Ne8+ Kf7 Kh6 h5 Kg5 Bf8 Kh4 Bd6 Nb3 Bda3 Rg7+ Kf8 Rf7+ Kg8 Rf4 Kh8 Nc7+ Kg7 Nc5 Kh6 Ng5 Rd1 Bc8 Rd2 Ne8 Bb7 Be6 a8B Bd5 Bc8 Qb5 Bf5 Bf3 Bb1 Qc4 Bb7 Qb3 Bc8 Qd5 Bcf5 Rb7 Bfc2 Rb8 Nb3 Rb7 Na5 Rb8 Rb4 Rb7 Re4 Rb6 Re7 Nce6 Rg7 c5 Nc6 Qd7 Rg8 Qd5 Rg6
1BRb2K1/N4N2/1NN3p1/1bp2QNn/3Nnk2/np2r2p/1P1nn2r/3Q1q1B b - - 0 1 illegal: No possible last move
Bq4R1/3n3p/2Nk1p2/b2prbrr/3P1N1n/RRN1b3/RppN2QK/5N2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 b5 c4 bxc4 hxg5 e5 b5 exf4 Ba3 Ne7 Bc5 Ng8 Bb4 axb4 Kf2 Ke7 a4 c5 g4 b3 Kg2 f3+ Kh2 f6 d4 b2 e4 c3 a5 c2 g6 c1B g5 f2 e5 c4 g7 d6 b6 c3 e6 c2 b7 Qc7 g6 Nc6 b8N Bg5 a6 Na5 a7 Be3 Qg4 Bg5 Ra2 Ba6 Nc3 Qc8 Nge2 Nb7 Ng3 Nc5 Bg2 Be3 Nf1 Nh6 g8R Nf5 g7 Bd3 Qf3 Nd7 Nc6+ Ke8 e7 Nh4 Qh3 Qb8 Bf3 Be4 Qg2 Bf5 Ra3 Kf7 e8N Ke6 Rb3 Be7 Be4 Bd8 Nc7+ Kf7 N7d5 Ke6 Bf3 Ba5 Nf4+ Kf7 Rc8 Re8 g8R Re5 Rg3 Re4 Rcg8 Re5 Nd8+ Ke7 Bb7 d5 Nc6+ Kd6 Rg1 Qc7 Rh1 Rf8 a8N Qb8 Nb6 Rf7 Ba8 Rg7 Ra3 Rg5 Nc4+ Kc7 Ncd2 Kd6 Rh3 Rh5 Ng3 Rg5 Rha1 f1R R1a2 Rg1 Ngf1 Rh5 Qf2 Rg4 Qg2 Rgg5 Nce2 Bf2 Rhb3 Be3 Nc3
1Q1r2RB/N3R2p/1Rq3R1/1Q1p3q/3Pnr2/1K3kNR/pb1pp1b1/r2Rn3 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 Nf3 gxh4 Bd3 c4 Ng1 cxd3 Kd2 Kf7 Kc3 Ke6 f4 Kf5 g4+ Ke6 b4 Kd5 b6 e5 g5 a5 g6 d6 b7 e3 f5 Ke4 g7 e2 b5 e1R f6 a4 b6 h3 f7 a3 Ne2 d2 Kb3 a2 c4 h2 c5 Bh3 c6 Qg5 c7 Bf1 c8R Nf6 g8R Nc6 b8R Kf3 b7 e4 Nbc3 e3 Rc7 Ne5 Rg6 Ne4 Re7 Nd3 Nb5 Qh5 Na7 Bg2 Ng3+ e2 Ba3 Rf1 Qb1 Ne1 Bc5 d5 Bd6 Rg1 Be5 Rf1 Ree6 Ba3 Re7 Rd8 Bh8 Bb2 f8R+ Ke3 Rfe8 Kf3 Reg8 Qh6 Rb6 Qc6 Rg6 Rf8 Rd8 Rf4 Rdg8 Rd8 b8Q Rg1 Qc1 Rf1 Qc5 Rg1 Rd1 Rf1 Rg1 h1Q Qb5 Qh4 Rh1 Qh5 Rc1 Nd3 Rc3 Ra1 Rcc1 Ne1 Rd1 Kf2 Rh2 Kf3 Rh3
3R1KR1/3Q1pp1/R2B3q/2Bpn2n/1B2BP1N/2r4k/4pp1b/nqr1R1Rb b - - 0 1 illegal: No proof kernel
r2BB3/QBp1R3/1B2qr1R/3pn3/bR2p3/1k2b1Kp/p1r2nRP/r3R1N1 b - - 0 1 illegal: No proof kernel
qq5N/b2R1NN1/Br1bN1RP/2k3nK/2N2qNN/8/b1nbp1r1/b4B2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 g4 h6 b3 Kd7 Qf3 Ke8 Qf4 Bb7 Bb2 Ba6 Bf6 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Kf2 Kd7 h4 Kd6 d4 a5 b6 c5 b4 e5 g7 a4 f6 a3 b7 f3 Kg3 f2 h5 a2 f7 g4 b5 e3 h6 e2 b6 e1B Nd2 e4 Nc4+ Kd7 d6 Kc6 d7 e3 Rd1 a1B Nf3 e2 Nh4 Na6 Rg1 Nf6 g8B Nh7 b8N+ Kd5 b7 Bd2 Nc6 Bd6+ N6e5 Rb8 Rg2 Nb4 Rg1 Qe8 d8N Ng5 f8N+ Be6 Nfg6 Nc2 Nf7 Qc6 Bh7 Rhg8 Ngh8 Qa6 Bd3 Qa8 Rg2 Rg6 Rg1 Rbg8 b8N Rf6 Na3 c4 Na6 c3 Nc4 Rgg6 Nc5 Rg7 Kg2 g3 Ng4 Kc6 d5+ Kb5 Na6 Qb8 Nc7+ Kc5 Ne8 Rfg6 Nd8 Rb7 Ng7 Rb6 Ndf7 Qa8 Nce5 Qb8 Ba6 Qa8 Kh1 g2+ Kh2 Qb8 Kg3 Qa8 Rh1 g1B Rh2 Qb8 Rg2 Qa8 Nhf5 Qb8 Kh4 Qa8 Nc4 Qb8 Rg3 Qa8 Bg2 f1Q Kh5 Qf4 Nh4 Bd4 Nd8 Qf8 Ndf7 Qfb8 Bh3 Ne1 Bg2 c2 Bf1 c1Q Rg1 Nc2 Rg2 B6f4 d6 Bf2 d7 Bd6 d8N Bd5 Nce3 Ba2 Rg3 Qb2 Rg1 Qd4 Nc4 Qf4 Nde6+ Kd5 Ned8 Nh7 Nf3 Rb1 N7e5 Bb4 Nh4 Ba7 Nh2 Bf8 N2f3 Rbb6 Rg3 Kc5 Nh2 Bc1 Rd7 Bd2 Nef7 Bd6 Nde6+ Kc6 Ra3 Rg2 Rg3 Kd5 Rg6 Ng5 Ng4 Kc6 Nf8 Kc5 Nfe6+
bqn1r2b/1N2RqNp/4P3/rR5n/1qnR2q1/1bBBk1R1/1R4KR/5R2 b - - 0 1 illegal: No possible last move, all moves rejected
6Nk/b1R2R2/2nNK1Br/1R4p1/bR4Pr/qp3pR1/n2qRb2/1Rb3B1 b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 a4 h5 f4 exf4 Qb3 h4 Qg3 hxg3 axb5 a5 b4 axb4 e4 c5 Ke2 g5 Kd3 f5 Kc4 Kf7 h4 Kg7 d4 f3 d6 g2 Kd5 f4 d7 c4 h5 f2 b6 b3 h6+ Kh7 b7 c3 e5 f3 e6 c2 e7 Nc6 e8R Qb6 b8R Qb7 d8R Bd7 Ra7 Bf5 Re2 Be7 Rf8 Qb6 Rc7 Qa7 Nd2 Ne5 Nh3 g1B Nc4 Nf7 Nf4 Qa1 Nd6 Qa7 Rb4 Ne5 Nh5 Nc6 Be3 c1B Rb5 Bd3 Ke6 Nf6 d5 Ne4 Rf7+ Kg8 Rh3 Qa3 Rg3 Nc3 Bc5 Rh7 Nf6+ Kh8 Ng8 Ra6 Rb4 Bb5 Bb6 Rg7 h7 Ba4 Nc4 Nb8 Rb5 Ra5 Rb4 Bc6 Ba7 Rg6+ Ke5 Ba4 Ra2 Be8 Rg7 Bc5 d6 Bd2 d7 Raa6 d8R Ba4 Bh3 f1Q Rd5 Qd1 Bf1 Bb6 Ra1 Na2 Bd3 Bc1 Rgf7 Qd2 Rb1 Bbe3 Bc2 Rae6+ Kf5 Nc6 Rdb5 Bb6 Bd3 Re2 Nd6 Rh2 Rfe7 Rh5 Re2 Rgh6 Be4 Rh4 Bc2 R6h5 Ke6 Rh6+ Bg6 Bbe3 Ne7 Kg7 h8R Bc5 Rf8 Bge3 Rf7+ Kh8 Bb6 Bed4 Ng8 Bg1 Ba5 Ba7 Bb6 Na5 Bf2 Nc6 Be1 Bge3 Bf2 Beb6 Bg1 Be3 Rc4 Bf2 Rcb4
3rb3/KBp1bBB1/bNBBkBp1/1B6/2n1Nr2/r1P2R1r/n1r1R1r1/q7 b - - 0 1 illegal: No possible last move, all moves rejected
Rnb3KB/1n1kP2R/B5b1/3n1Rb1/1B3BB1/1Nbp4/2B2rqn/1nNq4 b - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 a4 c5 axb5 cxd4 f4 exf4 g5 g6 Qd3 f3 Qf5 gxf5 h5 f4 Ra3 Ra6 Ra1 Rg6 hxg6 Bg7 Bd2 Bh6 Bc1 Bf8 Kf2 h5 b4 d5 c4 f5 e4 d3 b6 h4 g7 d4 c5 a4 e5 h3 g6 d2 b7 d1B c6 h2 b5 a3 e6 a2 c7 Rh5 e7 Bc2 b6 Kd7 Bd2 Nf6 g8R Ne8 g7 Nd6 Ne2 Rg5 Nc1 Rg2+ Ke1 f2+ Ke2 Be4 Bb4 f3+ Kd2 f4 Ba6 d3 Kc3 f1N Kd4 f2 Ke5 f3 Kf6 Ne3 Nd2 f1N Ndb3 f2 Rh8 Bf5 g8B Bh6 Rh7 Nd2 Rf1 Bg5+ Kg7 h1Q Bd5 Nb1 Bf3 Nc2 Bd1 Ne3 Bc2 Qh5 Nd4 Nd5 Ndb3 Ke8 Kg8 Bg6 Kg7 Qd1 Kg8 Nc6 b8B Nb7 Ba7 Qd7 Bb8 Q7g4 Ba7 Kd7 Bb8 Nbd8 b7 Qe4 Ba7 Nb8 Bd4 Rh2 Bh8 Qg2 Re1 f1N Re5 Rh5 Rf5 Nh2 Be1 Rh4 Bec3 Rf4 Bb4 Nbc6 b8B Rf2 Ba7 Nb8 Be3 Nb7 Bf4 Na3 Rb1 a1B Rb2 Nb1 Ra2 Kc6 Ra4 Bd7 c8B Bc3 Re5 Bh3 Bg4 Kc7 Rf5+ Kd7 Ra2 Nc6 Rff7+ Bf5 Bc4 Ke6 Be2 Nb8 Ra8 Bg6 Bf3 Kd7 Rf6 Ke8 Ba6 Bc8 Rf5 Kd7 Bg4
2Rnr3/2p1B2r/1kN3Kn/6b1/5B1N/2PpqN2/N2R2Br/q1N1qbbN b - - 0 1 legal: proof: g4 e5 e4 f5 f4 g5 a4 b5 axb5 gxf4 g5 h5 Qg4 hxg4 d4 fxe4 dxe5 Rh4 Kd2 Rh5 Ke1 Rh8 Kf2 a5 h4 d5 b4 Kd7 b6 Kc6 e6 f3 Kg3 e3 Kf4 e2 Kf5 e1B g6 g3 b7 f2 c3 g2 g7 d4 h5 d3 h6 a4 b5+ Kb6 h7 a3 Kg6 a2 e7 Ra3 e8N Nd7 b8N Ngf6 g8N Ra5 Nf3 g1R+ Bg2 f1Q Rh2 Ra3 Nh6 Qe2 Ng7 Be7 Nh5 Ng4 Bf4 Ra8 Nbd2 Bf2 Ng3 Bfc5 Nh1 Qe1 Nb3 Rf1 Nc6 Bg1 Nc1 Nc5 Nb4 Qd4 Nf5 Ne6 N5h4 Bg5 Rb1 a1Q Nba2 Re8 h8B Rf2 Bf6 Nd8 Be7 Nh6 Rb2 Rh8 Rd2 Qde3 Rh3 Rh7 Rg3 Ka5 b6 Bh3 b7 Kb6 b8N Re2 Nc6 Rc8 Bf1 Rh2 Rg4 Nb7 Bg2 Re8 Be5 Nd8 Ra4 Ne6 Ra8 Nd8 Rc8 Bg4 Nfd4 Be2 Bf4 Bf1 Ndf3
2Rrb2K/2B1bP1p/B2RN1bN/1b3R2/nR5p/k1r3R1/1q1N3q/1nRq4 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 Qd2 cxd4 axb5 Nc6 b6 Nb8 b5 Ra7 Qc3 Ra8 Qb4 axb4 Ke2 e5 Kd3 Ke7 Ke4 Kd6 g4 Kc5 c4 d6 f4 b3 b7 Kb4 c5 d3 g5 b2 g6 d2 f6 d1Q b6 Ra4 c6 Be7 f5 Bd7 f7 Ra3 f8R Rc3 c7 Bb5 c8R Na6 b8R Qc7 f6 d5+ Kf5 e4 b7 e3 g7 e2 Nf3 e1Q Nd4 Qee2 Bf4 Nc5 Ra6 Na4 Ne6 d4 Nd2 d3 Rd6 b1B f7 Nf6 g8N Qh2 Nh6 Ka3 Rg8 Qb6 Rg3 Ne4 Rc5 Rf8 Rbc8 Rd8 b8R Be8 Rcd5 Qb2 Rb4 Bb5 Rdc6 Bc2 Bc7 Bb1 Rcd6 Bc2 Nb3 Nd2 Ke5 Nb1 Nd2 Bf8 Kf6 Be7+ Kg7 Be8 Nf3 d2 Ba6 Bg6 Rdg5 Qe1 Rf1 d1B Rf5 Be2 Nd2 B2b5 Kh8 Qee2 Rc1 Qf3 Rc2 Qd1 Rc1
2b3N1/1B1n4/NR1rrb2/q2p4/Bp1Nb1k1/1pN5/N1qP1nnR/1N3BK1 b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 f5 exf5 a6 b6 Bg7 Ra2 Bh6 Ra1 Bf8 b4 c5 b7 Bh6 b5 Qb6 Ba3 Bf8 Qe2 Qc7 b6 Qd8 Qb5 axb5 Bb4 cxb4 f4 Kf7 Kf2 Kf6 c4 e5 g4 h5 c5 d6 g5+ Kg7 g6 Kh6 g7 e4 c6 h3 f6 h2 c7 h4 f7 Kh5 f5 h3 f6 Ra5 Ne2 Nh6 g8B Nd7 b8N Bg7 f8N Kg4 b7 Ra6 f7 Bf6 Nc6 b3 b8N d5 Nec3 Rb6 Nb4 Re6 Nba2 b4 Na6 Rh7 Ng6 e3+ Ke1 e2 Kf2 e1N f8N Ng2 Ne7 Rg7 Bf7 Rg6 Be8 Rd6 Ng8 Re6 Rg1 Rd6 Ne6 h1Q Nd4 h2 Bb5 Re6 Re1 Rd6 Re6 Qc1 Bf1 h1B Kg1 Qc2 Re2 Rg5 Rf2 Re5 Re2 Ree6 Rf2 Bb7 c8B Qa5 Re2 Nf4 Rh2 Be4 Nf5 Ng2 Nd4 Nc5 Ba4 Nd7 Nc6 Kg5 Nd4 Ng4 Ncb5 Nf2 N5c3 Bc6 Bb7 Kg4 Ncb5 Nc5 N5c3 Bd7 Na3 Bc8 Re1 Re8 Nab1 Nd7 Re3 Re5 Reh3 Ree6 Rh7 Ne5 Rc7 Nd7 Rc6 Qc5 Rb6 Qc7 Rb5 Qa5 Rb6
1B2BBN1/R4r2/3Kbn2/2r2R2/2ppkB1N/npB3p1/1PBbq2q/1R2r3 b - - 0 1 legal: proof: e4 h5 g4 f5 exf5 Na6 gxh5 Nb4 Qg4 Nxa2 Qf3 Rh7 Qd1 Rh8 d4 c6 d5 cxd5 c4 Rb8 c5 Ra8 Qd3 Kf7 Qb3 Ke8 Qc4 dxc4 Ke2 Kf7 Kf3 Kf6 Kf4 a5 h4 b5 h6 d5 c6 b4 c7 a4 h7 g6 h5 a3 h6 e6 Nd2 b3 Be2 Ra4 Ngf3 Ra5 Nh4 Be7 Bd1 Nb4 f3 Bd7 c8B a2 Ba6 Qf8 Bb5 Qe8 Rb1 a1Q Ne4+ Kf7 Ke5 g5 f6 g4 f4 g3 f5 Nc2 Rg1 Bb4 Bf4 Bd2 Kd6 e5 Re1 Na3 Re2 Kf8 f7 Be6 Nf6 e4 Ba4 e3 Bc6 Qa8 Be8 Rc5 Rh2 e2 Rf2 Ne7 Ng8 e1R Rh2 Ng6 Re2 Ne5 Re3 Ng4 Re5 Bd7 Re7 Be6 Ra7 Qc8 Nf6 Rg8 h8B Rg7 Ng8 Rh7 Bd4 Nf6 Bc3 Rg7 h7 d4 h8B Qb7 Be5 Qh1 Bf4 Rh7 Rc1 Qh2 Rb1 Ng4 Bhe5 Nf6 Ra5 Kg7 f8B+ Kh8 Ra7 Rf7 Bg5 Kh7 Bef4 Nd5 Bd8 Qe2 f6 Qh2 Bc7 Qe2 Nf3 Kg6 Bb8 Kf5 Nh4+ Ke4 Ba4 Rb7 f7 Nf6 Be8 Re7 Bg7 Rec7 f8R Qh2 Rf7 Rb7 Bf8 Re7 Rh7 Rf7 Rh5 Qe2 Rc1 Qb1 Rf5 Qc2 Rb1 Qh2 Bc7 Qd3 Bb8 Qde2 Bc2+
1qB5/3R3p/1Rbp4/B3Br1p/3P1NN1/3p2KB/2rnN3/B1bqkBnq b - - 0 1 legal: proof: b4 a5 h4 c5 d4 f5 e4 c4 exf5 g6 h5 gxh5 Qd3 cxd3 a4 b5 axb5 axb4 c4 Kf7 g4 Kf6 f4 e5 Kf2 e4 c5 e3+ Kg3 e2 c6 b3 g5+ Ke7 f6+ Ke6 b6 Kd5 b7 Ke4 c7 b2 g6 Ra2 f7 Nc6 b8B Ba6 c8B Bc5 f8N Qe8 f5 Ba3 f6 Ne5 f7 Nf6 g7 Bb5 g8B Qd8 Nh3 Bc6 Ne6 Nf3 f8B Ng1 Be5 d6 Bfh6 Qc7 Nef4 Qb8 Bge6 Rf8 Bd2 Rf7 Ba5 Ke3 Nc3 Kd2 Nf2 b1Q Beh3 Ke1 Ng4 Qd1 Rb1 Rf8 Rb7 Bc1 Rd7 Rc2 Bg5 Nd5 Bgd8 Nf6 Bb4 Rf7 Bda5 Rf8 Ba3 Rf7 Bb2 Ne4+ Kg2 Rf5 Ba1 Kd2 Rh2 e1Q Rh1 Qh4 Kh2 Ke1+ Nce2+ Qb4 Kg2 Nd2+ Kh2 Qe7 Kg3 Qb8 Rh2 Qe6 Rg2 Qd5 Rh2 Rb2 Rf2 Qh1 Nc3 Ndf3 Rg2 Ra2 Rb2 Nd2 Rb6 Rc2 Nce2
5bk1/3K1NN1/1r4p1/RP4p1/pBbn3B/1Rrp1N1R/q1r2p2/2N1Nn1N b - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 e5 a4 c5 axb5 cxd4 f4 Nh6 f6 Bc5 Bh3 Ba6 Bf5 Bf8 Qd2 Ng8 Bg6+ hxg6 f5 Bc8 Qf4 exf4 Kd2 Kf7 Kd3 a5 Ke4 d5+ Ke5 d3 e4 d2 b4 d1R h4 d4 c4 d3 b6 f3 b7 f2 c5 Ne7 h5 Nd5 h6 Rd2 c6 Qb6 c7 Bc5 h7 Na6 b8R Nf4 Na3 Qb5 Nc2 Kf8 f7 Qb6 Ne2 Nh5 Rh3 Be3 Ne1 Qb5+ Kd6 Bh6 e5 Nf6 e6 Rc2 Bg5 Ra2 Nc1 Ra4 Bh4 Rg8 h8N g5 Ra3 g6 e7+ Kg7 f8N Qc4 Nf7 Be6 c8N Ng4 Nd7 Nc7 Nde5 Ne3 N5f3 Nf1 e8N+ Kh7 f6 Nb5+ Ke7 Nd4 Ncd6 Qa2 Ng7 Bc4 Kd7 Ra6 Ne4 Rc8 Ng3 Kg8 Nh1 Rb6 b5 Rb4 Ra8 a4 Ra5 Rb2 Rb3 Rcc6 Nd8 Rc2 f7+ Kh7 f8B Kg8 Bb4 Rc5 Ne8 Bf8 Ng7 Bd5 Ne5 R5c3 Ndf7 Bc4 N5f3
1nRKb3/pB1N4/pnqB1BBk/1p1B4/1np4p/1PrR1N2/1B4Rq/6q1 b - - 0 1 illegal: No proof kernel
1qn2q2/2rq1b1B/BBp5/q1b2R2/BN1BB2N/1rPp2Rn/3p2N1/1k1K3b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 f5 exd4 Qd2 g6 Qf4 Rh6 fxg6 Rh7 g5 Rh8 Qg4 hxg4 e4 Ke7 h4 Kd6 a4 Ke5 a5 d5 c3 f5 a6 b5 g7 b3 h5 g3 g6 g2 h6 d3 h7 d2+ Ke2 f4 a7 c6 Nh3 g1Q Bg2 b4 Na3 d4 Bb2 f3+ Kd3 f2 Ke2 Nd7 Bf3 Ndf6 Bc1 b2 Nf4 b1Q Nc2 Rb8 a8B Nd5 Rh3 Qg4 Bb7 Qgd7 Kd1 Bc5 Ng2 Nf4 Rg3 Ne7 g8B Qa5 g7 Nh3 Bb3 f1B Ba4 b3 g8B b2 Ba6 Rb3 Nb4 Bc4 Ra3 Bf7 Ra2 d3 Ra3 Ke6 e5 Qa1 Be4 b1Q B4b5 Qad8 Ra5 Qf8 Ba4 Qa3 Nc2 Qb4 Rb5 Qa2 Ba3 Qa5 Bb4 Qb6 Ba5 Qb8 Bb6 Qa3 Bg6 Kd5 Be4+ Kc4 Nb4 Bd5 e6 Qa2 Bf7 Rg8 h8B Rg7 Bfg6 Qa3 Nc2 Qb4 Bh7 Qa5 Nb4 Rf7 Bd4 Rg7 Bb7 Rf7 Ba8 Ba6 Bb7 Nc8 e7 Rg7 e8N Rf7 Bef5 Rg7 Ne1 Bh1 Be4 Ra3 Na2 Qg4+ Bf3 Bb4 Ng2 Rc7 Bf6 Qd7 Bfe4 Bd6 Rbg5 Bc5 Bd4 Bb5 Nb4 Ba6 Bb5+ Kb3 Nd6 Kb2 Nf5 Rb3 Nfh4 Kb1 Ba4 Bc4 Rf5 Bf7 Ba6
kRn5/2p3qN/r5BN/n1P5/2R1p2K/Bp1rb1R1/B1b1bp1R/2R2nRb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 exd5 g5 Qe2 gxf4 g5 Nh6 Qg2 Ng8 Qg4 hxg4 Kf2 Kd7 h4 f5 d4 b5 c4 e5 a4 b3 h5 b4 a5 f3 Kg3 b2 g6 f2 a6 Kd6 h6 Bb7 c5+ Kd7 a7 Kc8 h7 Bc6 d6 Kb7 g7 Nf6 g8B f4+ Kh4 g3 d7 f3 d5 g2 d6 Qe7 d8R Qg7 d7 Ne8 Ne2 g1N Nd4 Nd6 Bd3 f1B Nc3 b1B Nf5 f2 Ba3 Nc8 Nd5 Ne2 Rg1 Ng3 Nh6 Bc2 Bg6 Be2 Rac1 Nf1 Nf6 Bh1 Ba2 b3 Re8 e4 d8R Rg8 h8R Nc6 Nh7 Na5 Rd3 Bd6 Rf8 Bf4 Rdg3 Be3 Rd8 Rf8 Rd4 Rd8 Rc4 Rd3 R3g2 Bf3 Rh2 Be2 Rg8 Rb8 Rg3 Ka8 Rg1 Rb6 Rg3 Kb7 a8R Ra6 Rb8+ Ka7 Rd8 Rc3 Rdd1 Rd3 Rb7+ Ka8 Rb5 Nd2 Rdg1 Nf1 Rb8+
1kn1n1B1/pqR1bp1p/rb1R4/1b1R1R2/1Bpp3B/N6P/K1R2r1q/3R1N2 b - - 0 1 illegal: No proof kernel
n1BNbb2/b2N4/n7/5pP1/N1r4Q/1Q2b1Q1/1Nkp1rQ1/KRq1R3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e6 f5 exf5 axb5 Qf6 Bf4 Qe7 Bc1 Qd8 e4 d5 c4 f6 cxd5 Bd7 e5 Bc8 exf6 h5 g4 h4 Bf4 Qd6 Be5 Qd8 Bg3 hxg3 g6 Kd7 Kd2 Kd6 Kc2 Kc5 b4+ Kd6 Kb2 Ke5 g7 Ke4 d6 a5 f7 g2 d7 a4 b6 d3 b7 d2 b5 Rh4 b6 Bd6 f8N Nf6 g8Q Ne8 Nf3 g1B Ba6 Nc7 Ne5 Rh2 Nc4 Kd3 Nc3 a3+ Kb1 Ra7 Qe1 Na8 Qh4 Qc7 d8N Bd7 Na4 Be8 Nd7 a2+ Kb2 Qc6 Rb1 Bf8 Ka1 Bgc5 Rhe1 Be3 Qhh8 Qc7 Qh5 Rf2 Qh4 Nc6 b8Q Nb4 Qg6 Qc8 Qc6 Rc7 Qg2 Rc5 Qe5 Rc6 Bb7 Na6 g5 Rc5 Qeg3 Rc7 Kb2 a1B+ Ka2 Bd4 Ncb2+ Kc2 Ka1 Kb3 Ne5 Rc1 Nd7 Qc3 Bc8 Qc2 b7 Ba7 Rf1 Qd1 Re1 Rc4 b8Q+ Kc2 Qb4 Qc1 Qb3+
3NQ3/Nb1RnKN1/Bb5N/3R3r/2qq1Pbp/3Q1b2/3R2k1/1rq2R1q b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 fxe4 h4 b5 c4 d5 cxd5 g5 a4 gxh4 a6 b4 a5 Nd7 Bb2 Nb6 Bg7 Bxg7 axb6 Bf8 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Ke5 c5 d4 h5 g4 e3 a7 b3 b7 c4 b8R b2 f3 e2 d6 e1Q+ Ne2 h3 d7 Kh4 Ke6 c3 g5 c2 d5 c1Q f4 h2 d6 Qec3 g6 Bb7 Na3 b1B g7 Bf5+ Kf7 e5 Nb5 e4 Qd3 e3 Ned4 Kg3 Ne6 Ne7 g8N h4 Ng7 Rh5 Nh6 Bg4 Ra5 Qb6 d8R Qbd4 d7 Qc7 Rbc8 Rb8 a8Q Q7c5 Na7 Q5c4+ Rd5 Kf2 Nb5 e2 Na7 e1Q Rc7 Qee4 Be2 Kg2 Re1 h1B Rf1 Bc8 Qc6 Rb1 Qe6 Bb7 Qe5 Ng8 Qe8 Bb4 Ra8 Bd2 d8N Ne7 Rd7 Ba5 Rc8 Bb6 Rc5 Qb4 Rc2 Qbc4 Rd2 Kh2 Rdd1 Bhf3 Qc3 Kg2 Bd3 Qc8 Ba6 Qcc4 Qd3 Qe1 Rh1 Qeg1 Rf1 Qh2 Rd1 Qh3 Rhf1 Qh1 Rd2+
NR2n2n/Q2KQ3/2rp4/2p1BBN1/b2n3P/1q4bB/2kQ2BQ/q2r3r b - - 0 1 illegal: No possible last move
1b2KQQB/4b3/3Q1q2/p1r1n2P/n1pBNkrR/7B/Qn1p2N1/5Br1 b - - 0 1 legal: proof: e4 b5 g4 f5 exf5 h5 a4 hxg4 axb5 c6 b4 Kf7 b6 Ke8 b5 Ba6 Bg2 Bb7 Bf1 Bc8 c4 cxb5 c5 Rh5 Ba3 Rh4 Bc1 Rh8 Ra4 Kf7 Rf4 Ke8 Rc4 bxc4 d4 Nf6 d5 Rh3 c6 Bb7 c7 Bc6 dxc6 Ng8 Be2 Rh7 Bf1 Rh8 Ke2 Kf7 Ke3 Kf6 Ke4 d5+ Kd4 a5 Kc5 Ke5 c8Q g5 h4 g3 f3 d4 c7 g2 h5 g4 b7 g3 f6 d3 f7 d2 Nh3 g1R Nc3 g2 Qa4 Nc6 b8Q Nf6 Qa2 Nd5 Ne4 Nb6 Nf4 Rg8 Rh4 Rg4 Bb2+ Qd4+ Kb5 Na4 Qd7 Ra7 c8B+ Rc7 Qd8 e6 Qd6+ Kf5 Bd7 Be7 f8Q+ Qf6 Bd4 Ne5 Qg8 Rc6 Qbf8 Rc8 Nd3 Rc7 Ne1 Kf4 Bc8 Rh1 Bd7 g1B Bc8 Bh2 Ng2+ Kf5 f4 Rc5+ Ka6 Rg1 Kb7 Nc6 Kc7 Bg3 Kd7 e5 Ba6 Bh2 Ke8 Bg3 Ng5 e4 Bb5 e3 Ne4 e2 Ba6 Ne5 Bb7 Rg7 Bc8+ Nd7 Rh1 Kg4 f5 Ne5 Rh4+ Kf3 Be6 e1N Bd7 N1d3 Bc8 Qg5 f6 Ndb2 f7 Qf6 Bh3 Rg4 Qh6 Bd8 f8B Be7 Bg7 Bh2 Bh8 Bf4 Qhg7 Bg3 Ne1+ Kf4 Q7f8 Kf5 Nf3 Ng6 Qa6 Bb8 Qd6 Ne5 Ne1 Kf4 Ng2+
B4Q1r/1Br3r1/2R1pp1p/Q1KR1Nqr/7P/B3Qb2/1nB5/n2knQ2 b - - 0 1 legal: proof: e4 b5 f4 c5 b4 g5 bxc5 gxf4 a4 d5 c6 dxe4 a5 e6 a6 Ba3 Nxa3 b4 Nb5 Kf8 Nxa7 Ke7 Nb5 Kf8 a7 Ke8 Nd6+ Ke7 Ne8 Kxe8 Kf2 Ke7 c4 Kd6 h4 Ke5 g4 Kd4 c7 b3 c5 f6 c6 b2 g5 b1R g6 f3 g7 h6 Ra5 Qf8 Ba3 Rb5 Bd3 Na6 Qf1 Bb7 c8Q Qc5 c7 Ne7 g8Q Nb4 Qcf8 Ng6 c8B Nf4 Qg3 Qg5 Qgh3 Bd5 Bb7 Rc8 a8B Nc2 Rh2 Rc7 Ne2+ Ke5 Rh1 Na1 Ke3 f2 Nd4 Rg7 Ra6 Rc5 Nf5 Rcc7 Qb1 f1R Rc6 Rc1 Rd1 Rc5 Qf1 Ba2 Qb3 Rb5 Kf2 e3+ Kf3 e2 Ke3 e1N Bc2 Rc5 Ng3 Rc4 d4+ Kd5 Qb6 Rc5 Rd3 Kc4 d5 Qg4 d6 Qg6 d7 Bb1 Rd2+ Nfd3 Qa5 Ba2 d8Q Bb3 Bb1 Bd1 Qd4+ Kb3 Qdf4 Bg4 Kd4 Rh5 Nf5 Nb2 Kc5 Qg5 Rd5 Bd1 Bd3 Bf3 Bb5 Kc2 Bd3+ Kd1 Qg3 Bh1 Qe3 Bf3 Bc2+
R4q2/2K1k2B/2QN1bb1/2nppbQ1/1qn3Q1/qRPp2Qn/B4RR1/8 b - - 0 1 legal: proof: e4 a5 a4 d5 f4 b5 axb5 Ra6 e5 c5 d4 Rd6 exd6 cxd4 g4 g5 f5 e5 Bf4 gxf4 Nc3 h6 Ne4 h5 g5 Rh6 Nf2 Re6 Ng4 hxg4 fxe6 Bb7 Qd3 Ba6 Qd1 Bc8 Kd2 f5 h4 f3 b4 f4 e7 g3 h5 a4 g6 g2 h6 f2 h7 a3 h8R f3 b6 a2 g7 Bb7 d7+ Kf7 e8Q+ Kf6 b5 Bd6 Bc4 f1Q Nh3 g1Q Nf2 d3 Kc3 Qe7 d8Q Qgg2 Rg1 Ba6 b7 Qg4 b6 Bb5 Rh2 Na6 b8R Nc5 Kb4 Nh6 Ka5 Nf7 g8B Ng5 c3 Nh3 b7 Ba4 Rb1 a1N Kb6 Nab3 Bh7 Na5 Ba2 Qb4+ Qb5 Ke6 Ne4 f2 Rb3 Nc4+ Kc6 Qf8 Qg5 Be7 Ra8 Bf6 b8Q Ke7 Qdg4 Qa1 Nd6 f1B Kc7 Qb2 Q5b6 Be8 Rgg2 Bg6 Qc6 Q2a3 Rf2 Be2 Rhg2 Bf5 Qg3 Bh5 Qbb7 Bhg6 Qc8 Be4 Qcg4 Bef5 Q4h5 Qb2 Qe2 Q2a3 Qeg4
4r3/4bq2/1QB1qkq1/4QBqr/q5br/N1QP3B/7N/BK1nRQbn b - - 0 1 illegal: No possible last move, all moves rejected
1kq1r1Q1/b4NN1/qP3R1K/r1r1r2n/5r2/1b2NQR1/6R1/1R1nqbBN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 b4 g5 d4 f5 Kd2 c5 Ke3 Kc7 h5 a5 h6 c4 h7 g4 Kf4 c3 e4 a4 e5 c2 e6 a3 e7 a2 Kg5 f4 Nc3 f3 Rh6 f2 Qf3 f1B Be3 c1R Nd1 Nf6 Ne2 g1Q Rb1 g2 Ng3 a1Q Nh1 Nbd7 e8N+ Kb8 b6 g3 b5 Ne5 b7 Nc4 d6 Ra5 d7 Bc5 d5 Nb2 d6 Ba7 Ng7 Re8 h8R Nh5+ Rf6 Rc5+ Kh6 Qc7 d8N Be6 d7 Qc8 Rg8 Bb3 Nf7 Ree5 Nc3 Nd1 d8R Qf2 Nd5 g1R Bd4 g2 Ne3 Qe1 Rd5 Re8 Rg5 Qa3 Rg3 Rce5 Rb2 Qd6 Rb1 Qa6 Nf2 Rh1 Bc5 Rh4 Nh1 g1R Bd4 Rf4 Rg2 Kc7 b8Q+ Kd7 Qba8 Kc7 Qad5 Kb8 b6 Rc5 Ngf5 Ra5 R8g5 Bd3 N7d6 Qf1 Ng4 Nf2 Qg8 Qe2 Ng7 Rc1 Be3 Rcc5 Nf7 Nd1 Bg1 Qe1 Ne3 Bf1 R5g3
q2q1qnN/1N6/1R3r1b/br2RQq1/kn6/B2Q1Q2/NP1bQ3/2n1rN1K b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Bb7 Ra3 Be4 Ra1 Bf5 gxf5 Qe7 Bg4 hxg4 Na3 Qg5 Nb1 Qd8 Kf1 a5 c4 d5 e4 Kd7 h4 g5 f6 a4 f7 g3 c5 g2+ Kf2 d3 h5 d4 h6 d2 e5 d3 b6 Kc6 b7 Kb5 h7 a3 c6 g4 c7 a2 c8N Bh6 f8N Nc6 e6 Ra5 e7 Nb4 Qe2 d1Q b8Q+ Ka4 e8Q+ Rb5 Q2e4 d2 Qb6 Qg5 Qf5 Qb3 Qed8 d1Q Qc6 Qa3 Be3 Qdd3 Qe7 Qd8 Ne2 g1B+ Kf1 g3 Nc1 f2 Kg2 f1N Bc5 Be3 Rh5 f3+ Kh1 f2 Qcf3 Nd2 Ng6 Nb3 Nd6 Bd2 Qee2 f1R+ Kg2 Qde7 Nb7 Qd8 Q3d3 Re1 Be7 Be3 Nd2 Bb6 Nf1 Ba5 Kh1 g2+ Kh2 g1B+ Kh1 Be3 Qff3 Qf6 Re5 Bd2 Qdf5 Qg5 Q3d3 Nf6 Qef3 Rg8 h8Q Rf8 Qh7 Rf7 Nh8 Ng8 Qde2 Rf6 Q5d3 Qf8 Qhf5 Qd8 Rb1 a1Q Na2 Nc1 Re6 Qb3 Rb6 Qf7 Bd6 Nb3 Rc1 Qff8 Rc5 Nc1 Re5 Qb1 Re4 Qc2 Re5 Qcc8 Be7 Qa8 Bd6 Nd5 Ba3 Nb4 Q3h3 Be3 Qhh5 Bd2 Qhf3
B1k1Qb2/4BB1r/brP2q1r/1n3bn1/rN3r1R/rQB4Q/7Q/2K1N2q b - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 c5 a4 cxd4 axb5 Rh7 g4 Rh8 Ra3 g6 Rg3 g5 exf5 gxf4 g5 Nc6 Rg2 Nb8 Rg4 hxg4 Kd2 e5 c4 a5 h4 d5 b6 Kd7 c5 e4 b7 g3 f6 e3+ Kc2 d3+ Kb2 d4 g6 d2 h5 g2 f7 a4 b5 d3 b6 a3+ Ka1 f3 h6 a2 Kb2 a1R h7 f2 g7 e2 Qb3 e1Q Rh4 d1B Bg5 d2 Ba6 f1R Nc3 Rf4 Nd5 Nf6 g8B Bg4 Nf3 d1R Nb4 Nc6 b8Q g1R Bb7 R8a3 Ba8 Rd6 b7 Na7 Qc3 Qf1 Ne1 Nb5 Qh3 Rh1 Kc2 R1a2+ Kc1 Ne4 Be7 Qb6 Bd8 Rh6 Qe5 Qf6 b8Q Bf5 Qb2 Ba6 Qbb3 Rg1 Qe5 Ra4 c6+ Kc8 Qeb2 Ng5 Qbh2 Bd6 f8B R2a3 Bg7 Bf8 Bc4 Rh1 Bf7 Rg8 h8Q Qf3 Qh7 Rh8 Qg6 R8h7 Qh5 Rf1 Bh8 Qh1 Q5e2 R1f2 Qe8 Rd2 Bg7 Rd7 Bh8 Rb7 Bg7 Rb6 Bh8 Qd6 Bc3 Qf6 Be7+
qBNrB1K1/1r2br2/r2QQ3/4N2k/q1QB3n/1Q2nP2/b4n1B/5Rnn b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 Ke2 Kf7 Ke3 Kg6 Kd4 c5+ Ke5 h5 d4 h3 g4 h2 d6 b3 f3 c4 d5 b2 b7 c3 d7 c2 Ke6 h4 b6 h3 g5 e3 d6 e2 Qe1 Nc6 b8Q Nd4+ Kd5 e5 b7 e4 Na3 b1R Nb5 e3 Bb2 c1N Qh4 e1Q Ne2 Nf5 Ke6 Qd1 Ned4 e2 Nc6 Qa4 Nba7 e1R+ Be2 Rh6 Rf1 Nf6 Qf4 Rd1 Bb5 Kh5 Kf7 Nh4 g6 Ne2 g7 Nd5 g8Q Ng1 Be5 Qda5 d8Q Ne3 d7 Be7 Qb6 Rg6 d8B Rf6+ Kg7 Rd4 Bdc7 Be6 Nc8 Ba2 Qe6 Rd8 Qfc4 Rb4 Kh7 Rf7+ Bg7 Rb1 Be5 Qa7 Qbd6 Qb8 Bf4 Ra6 Bg3 Qa8 b8B h1N Be5 h2 Qb7 Nf2 Bf4 h1N Bh2 Rd7 Kg8 Neg2 Bd4 Ne3 Ne5 Rd8+ Be8 Rb2 Qbb4 Rb3 Qa3 Rb7 Qab3
4bq2/2N3N1/3qb2b/1Brqrr2/Q2PBr1N/3n3R/2n1Qb1N/k2K1BB1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 e4 Ke7 d4 Kd6 g4 f5 b7 h5 b6 c5 g5 b3 g6 h3 g7 f3 Bb5 f2+ Kd2 f1Q Bb2 c4 Qc2 h4 Ne2 h2 Qd1 h3 Ba4 f4 Nbc3 f3 Ba1 f2 Qe1 b2 Bd7 b1B Ng3 Rh4 Bb2 Nf6 g8B Ng4 Bc6 Be6 Qe2 Ne5 Nd1 Bh6+ Ne3 Na6 b8N Nb4 b7 Ned3 Na6 Rc8 Nc7 Nc2 b8Q Rf4 Qb5 Qf8 Ba8 Qg2 Nef1 c3+ Kd1 Qf3 Rg1 h1Q Bc1 h2 Qa4 Qg4 Bc6 Qg6 Be3 Qg2 Bf7 h1R Nh2 Ba2 Re1 f1R Bg1 Rf5 Bb5 R1f4 Bc4 Qf6 Bg6 Bd7 Rf1 Be8 Rf3 Bb3 Ng4 Rhh5 Nh2 Re5 Bh7 Rhf5 Ba6 Ke7 d6+ Kf7 d7 Q6d6 Bb5 Be6 d8N+ Kf6 Nh1 Qgg8 Rh3 Qgf7 Ng3 Qfd7 Na6 Rcc5 Nc7 Qd5 Bc4 Q7d6 Ba6 Bg8 Nde6 Bgf7 Ng7 Be6 Bg6 Ke7 Qa1 Kd7 Bc4 Kc6 Qa4+ Kb6 Qd7 Ka5 Qc6 Rh5 N3f5 Kb4 Nh4 Ka3 Qa4+ Kb2 Bh7 Ref5 e5 Kb1 Ba2+ Ka1 Bg6 Bc8 e6 Re5 e7 Be6 Be4 Rhf5 Bg2 Na3 Bf1 c2+ Kd2 c1B+ Kd1 Be3 Bb1 Bf2 Bc2 Bh5 e8B Bg6 Bc6 Be8 Bb1 Qc4 Be4 Qcd5 Ba2 Nc2 Bc4+ Kb1 Bb5 Kb2 Qb3+ Ka1 Qa4+
bKQB1Q2/8/4Br2/q1bq2kn/b6N/p1NRb1Nb/2rQPrn1/1Q1N4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Qb3 f3 Qc2 Bc5 Qd1 Bf8 b4 Qd6 Qb3 f2+ Kd1 Bf5 Ba3 Nd7 Qf3 Nb8 d3 Qd8 Kc2 Be6 Nd2 Bc8 Re1 fxe1Q Kc3 Ke7 Kc4 h5 Kc5 a5 g4 f5 d4 Kf6+ d6 c6 b6 h3 g5+ Kg6 b7 h4 d5 a4 b5 f4 b6 h2 Nb1 h3 Nc3 Bg4 Nd1 Ne7 d7 Nf5+ d6 Nh4 Qd3+ Kh5 g6 f3 g7 f2 g8N Ng2 Ne7 Rh6 Nf5 Rf6 Ng3+ Kg5 Qb1 Be6 Bb4 a3 Bc3 Qd2 Ba5 Qc7 d8Q Qd5+ Kb4 c5+ Kb5 Ra6 Qc8 Nd7 b8Q Ra7 b7 c4+ Kb4 c3 Nf3+ Kg4 Rg1 h1B Nh4 c2 Qa8 c1B b8N h2 Na6 Kf4 Nc5 Be3 Na4 Kg5 Nac3 Bh3 Qab8 Rb7+ Ka4 Qcc5 Bd8 Rb2 Qb4 Be7 Qd4 Rc2 Qd2 Nf8 d7 Ng6 Ngf5 Qc7 Ng3 Bc5 Kb5 Qce5 Ka5 N6f4 Kb5 Nh5 Ka5 Bd6+ Ka6 Qa5+ Kb7 Bc5 Ng6 Qd5+ Kb8 Nh4 Bg2 f1R Bf3 B1g2 Bg4 h1B Be6 Rf2 Re1 Be4 Rg1 Ng2 Nh4 Bd3 Re1 Bb5 Rf1 Rf5 Rf4 Ba4 Rd4 Rf2 Rd3 Ngf4 Bb6 Bf3 d8Q Ng2 Qh8 Qd4 Qhf8 Ba8 Bc7 Qd5 Bd8
1RQ1R1K1/1bQ2RQ1/4nbr1/Rn1B1P2/2n5/3pNbr1/3Qqnq1/1n4kN b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Ke2 d5 Kd3 Kd7 b4 Kd6 h4 Ke5 c4 a5 g7 f3 c5 Kf4 b6 Kg3 b7 Kf2 h5 e5 h6 a4 b5 g4 b6 e4+ Kd2 e3+ Kd3 e2 h7 e1N+ Kd2 d3 Kc3 d2 Kd4 g3 Ke5 a3 c6 a2 c7 g2 Rh5 d4 Qc2 d3 Qb2 Qe8+ Kd5 Be7 Qb3 d1B Rh4 Nd7 Ke6 Ra6 b8Q Bf6+ Kd5 Nh6 g8Q Nc5 b7 Nc2 Qa7 Nd4 b8R Qe2 Qc3 Nb5 Qd2 Ng4 Qg7 Rg8 h8R Ne5 Rh2 Nc4 R2h7 Rb6 Qaa5 Ne6 Na3 Rc6 Nc2 Bb7 c8Q Ra6+ Qc6 Rb6 Ne3 Ra6 Qf7 Rg3 Qac7 Rb6 Qg7 Ra6 Rc1 a1N Rhe8 Nc2 Ra1 N2a3 Ra2 Nb1 Ra5 Ba8 Q6b7 Rc6 Qbc8 Bb7 Qb4 Qa2 Ne2 g1N Bg2 Nh3 Qd2 Qb2 Nc3+ Kg1 Ne4 f2 Bh1 f1Q Nf2 Qc2 Bf3 Qb2 Nh1 Nf2 Qe5 Bh4 Qgd7 Qg2 Qc2 Ned4 Qdc7 Qb3 Qd2 Qa4 Be4 Bf3 Rhe7 Qd1 Qg7 Qe2 Rd7 Nb2 Ke5 Rcg6 Bd5 Ne6 Rde7 R6g5 Kf6 Rg6+ Kf7 Nc4 Kg8 Bf6 Rf7
1Qr1bRqn/1nq2R2/b1bk4/8/BR3q2/2n4N/1Pr1BqBp/K1R3BQ b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Nd2 e4 Ndf3 exf3 hxg5 Qc7 Bh3 Qb6 Bf1 Qd8 Kd2 Ke7 c4 f5 Kc2 h5 Kb1 d5 e4 a5 b6 f2 e5 a4 c5 d3 g7 d2 c6 d4 c7 a3 b7 h4 e6 a2+ Kc2 d3+ Kb3 f3 g6 h3 Rb1 a1Q Qc2 d1N Be2 f1B Qc3 d2 Rh2 f2 Qd4 f4 Nf3 Nd7 b8R Ba6 c8Q Bg2 Rb6 f1Q Bd3 Qa5 Qg1 Nh6 g8B Nf7 Rb4 Kd6 Ng5 f3 e7 f2 e8B Nc5+ Kc2 Qa2 g7 Nc3 Ba4 Qc7 Qh1 Rh4 Qe8 Nh8 Bd5 Nb7 g8R Rg4 Rf8 d1B+ Kd2 Bdf3 Kc2 Qg1 Bd2 f1Q Rc1 Qgc5 B5e4 Qg8 Be3 Rh4 Bdb5 Bh5 Bg1 Bgf3 Qc8 Be8 Rf2 Rg4 Bc4 h2 Nh3 Rg2 Kb3 Rb8 Bec6 Bd5 R2f7 Qf4 Ka3 Rc2 Be2 Bg2 Bd5 Qcf2 Bdf3 Nd5 Ka2 Nc3+ Ka1 Ra8 Bf1 Rb8 B3e2 Bf3 Bg2 Ra8 Qb8 Bfc6 Qa7 Rc8 Qb8
1QNK1N2/2N1r1q1/4q1bb/1r2P2p/q1n4b/bnQ1B2k/8/r1QQN1BR b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf8 g4 Nc6 b4 Be7 h6 Bf8 Ra3 Nb8 Rah3 Nd7 Rh4 Nb8 Rh5 gxh5 g5 Qd7 g6 Qc6 g7 Qd6 Bh3 Qf6 Bf5 Qd8 Bg6 hxg6 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 c5 e4+ f3 d6 a5 b6 f5 d5 a4 h7 a3 b5 g5 b7 a2 d7 a1R Ke6 c4 e5 c3 d6 c2 b6 f4 Qe2 Nf6 g8Q Qc7 Qe1 f2 Nf3 f1Q Nh4 f3 Ng6 f2 Nf4 Qh3 Qc3 f1Q Be3 c1B Ng2 Ne4 Ne1 Bh6 Ke7 R8a7 Na3 Nd2 Nc4 Na6 b8B Ba3 b7 Qf4 Nb6 Nc5 Qgc4 Ncb3 Qc1 Rg8 Q4c3 Qa4 h8N Nc4 Ng6 Ra5 Bf4 Rb5 Nf8 Rg7+ Ke8 Rf7 d8N Bf5 d7 Bg6 Nc8 Kh4 Nde6 g4 Bh2 g3 Ba7 g2 b8Q g1B Bd4 Bf2 d8Q+ Kg4 Qd6 Bh4 Be3 Qb7 Nc7 Re7+ Kd8 Qbg2 Bhg1 Kg3 Qdd3 Qe6 Bh2+ Kh3 Qdd1 Qg5 Qdc2 Qgf6 Q2d1 Qg7 Bhg1+
r1bB1n2/2K3nk/Q1N1b3/pBBb1r2/1qnPN2B/2N2Q2/1q3N2/qR2q3 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 b4 h5 Ba3 f5 Bc1 f4 Ra6 Be7 Rg6 Bd6 Rg4 hxg4 Qa4 f2+ Kd1 f3 Kc2 Bf4 gxf4 Bb7 Kb2 Rh3 Qd1 Rh8 Kc2 Bc8 Kc3 Kf7 d4 Kg6 h4 c5 e4 a5 b6 g3 b7 g2 b5 Kh7 b6 g5 f5 g4 f6 g3 e5 Qe7 e6 Nd7 b8B Nh6 f7 Nf5 f8B Ng7 Nh3 g1N h5 g2 b7 Rg8 Be2 f1B h6 f2 Bg3 Nf3 b8N g1Q Bh4 Nfe5 Bcg5 Bg2 Nc6 f1B Nf2 Bd5 Qb3 Qd6 e7 Bh3 e8N Bhe6 Bd8 Qf1 Bfe7 Nf8 Qa3 Qb8 Nd6 Qg1 Nde4 Qb4+ Kc2 c3 Bb5 Nc4 Kd3 c2 Nbc3 Qh2 Rb1 c1Q Qb3 Qe5 Qd1 Qcb2 Qf3 Nf5 Bd6 Rg5 B6e7 Ng7 Bd6 Kg6 h7 Rf5 h8Q Qg3 Qg8 Kh6 Qf7 Kh7 Qa7 Qg1 Qb6 Qe1 Qa6 Nb6 Ne2 c4+ Ke3 c3 Bc5 c2 Kd3 Qh1 N2c3 Qa1 Ke3 c1Q+ Kd3 Qcb2 Ke3 Rh5 Kf4 Qg1 Bd6 Qe1 Bc5 Bf5 Ke5 Bfe6+ Kd6 Nc4+ Kc7 Re5 Rc1 Rf5 Rb1
1B6/r1bN1pNQ/r1q3NK/3q4/3Rn3/2r3PB/k1BnbbQ1/n1nB3N b - - 0 1 legal: proof: f4 c5 b4 g5 c4 b5 h4 e5 a4 exf4 axb5 Na6 Ra3 Nb8 d4 cxd4 Rc3 dxc3 hxg5 Qf6 Qd4 Qb6 Qd1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 d5 Kh5 a5 e4 c2 c5 f3 g6 d4 e5 Kd5 c6 f2 e6 d3 g3 Kc4 e7 Kb3 e8N a4 c7 a3 g7 d2 b6 a2 b7 a1N b5 Ra6 b6 Bd6 Be2 f1N Nh3 Nf6+ Kh6 Nbd7 b8Q Ne4 g8B Ndc5 b7 Nd3 Nc3 Bg4 Nd5 Ka2 c8B Bc7+ Be6 Ra7 Ne7+ Qd5 Ng6 Bh5 Bb2 c1B Qc2 d1R+ Qd2 Re1 Bd1 Re3 Nf2 Be2 Ng7 Ra6 Qc2 Nfd2 Be5+ Bb2 Rg1 Nc1 Bh3 Rc3 Nh1 Ra7 Qd3 Ba3 Re1 Bc5 Qa8 B5b6 b8N Bf2 Nd7 Ra6 Qd8 Ra7 Qf3 Qc6 Qh4 Qd5 Kh5 h6 Bh7 Rha8 Rg1 Ra6 Rf1 R8a7 Re1 Bc4 Re3 Be2 Rd3 Qc6 Rd4 Qd5 Kg4 h5+ Kf5 Qc6 Qg2 Qd5 Qd8 h4 Qg8 Nf6 Kg5 Nfe4+ Kh6 Qc6 Bg4 h3 Bf5 h2 Bh3 Bb6 Bb8 Bc7 Qh8 Qe6 Qf3 Nf6 Ngf8 Rd6 Bhc2 Rda6 Ng6 Qc6 Qg8 Be1 Nf2 h1Q Qh8 Qg2 Nh1 Bf2 Qe4 Qf3 Qh7 Qf5 Nh5 Qfd5 Qg2 Nfe4 Ng7
2rr2n1/1Pqp2Bb/n6B/2N2nB1/b1Q3q1/nqR2Q1R/1bk2BQ1/6QK b - - 0 1 illegal: No possible last move, all moves rejected
nRqn4/pQ3N2/2NR1k1n/1R1qn3/3Bq2P/R7/1N1QbKN1/r2brb2 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Qd1 f4 Ng1 f3 Bh3 Bd6 Bg4 Bf4+ gxf4 hxg4 h4 Kf7 e4 f1Q c4 g5 b4 d5 f5 f2 b6 d3 Ke3 d2 b7 g3 b5 g4 e5 g2 f6 g3 e6+ Kg6 c5 Qe1+ Ne2 g1N f7 f1B f8R g2 c6 Rh6 c7 Nc6 b8N Nh3 e7 g1N e8N Ng5 b6 Bg4 c8Q Ne6 b7 Nf3 Bb2 Nc7 Nd6 Nfe5 Nf7 Kf6 Na3 Rh5 Qc2 d1B Nc4 Nh6 Qd2 Bf3 Qd7 Qc8 Ra3 Nd8 Nc6 Rg5 b8R Rg1 Rb5 d4+ Kf4 d3 Ke3 Rb8 Bd4 Na8 Nb2 Rb6 Qb7 Ra6 Rh3 Ra4 Re8 Ra5 Re7 Rh1 Rab3 Ra1 Rd7 Rg1 Qc2 Qb4 Nf4 d2 Ng2 B3e2 Kf2 Qc4 Qc1 Qd5 Rhc3 Qe4 R3b4 Ba4 Ra3 d1Q Qd2 Qb3 Qa6 Qbd5 Rb8 Bad1 R4b5 Bc4 Qb7 Bfe2 Rc3 Re1 Rg3 Bf1 Ra3 Bce2 Rd6+
q2nN1k1/1rBR1n2/B5b1/P1r1n1B1/B2R2pR/KQ6/4Qbn1/nR2nb2 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Ra5 Ng4 hxg4 Bb2 Ra6 Bc1 Ra8 d4 Kf7 Kd2 b5 Kc2 e5 Kb2 c5 h4 b3 a4 b4 f6 f3 h5 f2 h6 e4 d6 c4 a5 c3+ Kb1 b2 Ka2 b1N h7 c2 d5 e3 d7 e2 d6 e1N Nh3 Nc6 Nf4 Rb8 Nh5 Rb7 Rh4 Na3 Rb1 Nh6 Qe2 Nc4 Ng7 N4e5 Ne8 b3+ Ka3 b2 Bf4 Rg8 h8R c1N Rh7+ Bg7 Bg3 Nb3 g6+ Kf8 f7 Na1 Bf4 Bf6 Bg5 Be7 Bh3 f1N Rg7 Ne3 Bf1 N3g2 Rh7 Qc7 d8B Qb8 Bc7 Qa8 Rg7 Bf6 d7 Rh8 d8R Be7+ Rd6 Nd8 Rh7 Bd7 Rg7 Bb5 Rh7 Bf6 Rd4 Rg8 Qd1 Bc4 Qb3 Ba6 Bb5 Rg7 Ba4 Bf1 Rbd1 b1B Rc1 Rg8 g7+ Ke7 Rcd1 Bg6 Rb1 Rh8 g8B Kf8 Rg7 Be7+ Ka2 Bb4 Kb2 Bd2 Ka3 Be3 Rh7 Bf2 Rg7 Be4 Bh7 Bc2 Bd3 Rh7 Ba6 Bg6 Qd1 Rb5 Qe2 Rc5 Bd2 Ke7 f8Q+ Ke6 Qff3 Nhf7 Qb3+ Ke7 Bf4 Kf8 Qec2 Rh5 Rh7 Kg8 Qe2 Rf5 Bd2 Rf6 Bg5 Rb6 Rh3 Rb8 Rhd3 Rb7 Rh4 Qb8 Rd7 Qa8 R3d4
QQnQr3/1NbP2nq/4r1r1/3Rr2Q/N5bK/6R1/rk2pnB1/N1r4N b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 g4 h6 f4 Be6 b3 Bc8 Bb2 Nc6 Bf6 gxf4 g5 Nb8 g6 Bg4 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 h4 Kd6 d4 c5 h5 a5 g7 e5 b6 e3+ Kf3 e4+ Kg2 f3+ Kg3 f2 h6 c4 b7 a4 h7 a3 b4 a2 b5 c3 b6 g4 Nh3 e2 Qb3 e1N Na3 e3 Rb1 a1R Nf4 c2 Bh3 f1R Nh5 c1R Rg1 e2 Qa2 Qd7 Nc2 Nf6 g8Q Nc6 b8N Na7 b7 Ne8 Na6 Nd3 Rb5 Ng7 Nc5 Nf2 Kh4 g3 Na4 g2 b8Q+ Qc7 Ng3 Bg4 Nh1 Nc8 Qf7 Ra6 Qh5 Rg8 h8Q Be7+ Qg5 Re8 Qh5 Bd8 Rc5 Rc6 Qa3 Ra2 Na1 Rfd1 Qf3 Rd3 Ra5 Rde3 Qgf6+ Kd7 d6 R3e5 Rd5 Ra6 Qfg5 Ke6 d7 Qa7 Qf8 Bc7 Qd8 Qb7 Qa8 Qb1 Qb4 Qh7 Qbb8 Rac6 Rf1 g1R Bg2 Rd6 Rd1 Ra6 Rd3 Rac6 Rg3 Rb6 Qh6+ Kf5 Qh5+ Kf4 Bf3 Ke3 Bg2+ Kd2 Qe7 Rf5 d8N Re6 Nb7 Rfe5 Qd8 Kd1 Ra5 Kd2 d5 Kd1 d6 Kd2 Nb3+ Kc2 d7 Kb1 Rd5 Kc2 Nc3 Kb2 Na1 Rgd1 Ra5 Rdd6 Rc5 Rg6 Rd5 Rde6 Na4+
R5N1/1b2n3/Q2qR1b1/n1Qb4/rQ1K4/nQ2pRNr/R2BPr1k/2r1n3 b - - 0 1 legal: proof: d4 b5 g4 c5 b4 cxd4 a4 f5 axb5 fxg4 b6 a6 b7 Qc7 Ra5 Qb6 Ra1 Qd8 h4 g5 b5 g3 b6 g4 Bg2 Bh6 Bc6 Bg5 Bb5 axb5 hxg5 Ra3 Kd2 Ra7 Ke1 Ra8 Kd2 Kf7 Kd3 Ke6 c4 Kf5 f4 e5 g6 d5 c5 h5 c6 b4 g7 g2 c7 b3 Qe1 g3 Ba3 Kg4 f5 h4 f6 b2 f7 e4+ Kc2 d3+ Kc3 d2 f8R d1B Rf7 h3 Bc5 d4+ Kc4 e3 Qd2 h2 Qc3 d3 Nd2 b1N Bd4 Nc6 b8Q Bb7 Ra2 Rh3 Rf3 Qd6 Ne4 d2 c8Q+ Kh4 Qb3 Nge7 g8R Bc2 Nf6 d1R Qbc7 Rf1 Bc3 Rf2 Bd2 Na3+ Kc3 Na5 Qc5 Bd5 b7 Bg6 b8Q Bb7 Re8 Ra6 Ng8 Bd5 Rf5 Kg4 Nf3 g1R Q8c6 g2 Nh4 Kg3 Q8b4 Rc1+ Kd4 g1N Ra8 Ra7 Qa6 Nf3+ Kd3 Ne1+ Kd4 Ra1 Rf4 Rc1 Nf5+ Kg2 Rf1 h1B Re4 Kh2 Ng3 Bf3 Re6 Bh1 Rc2 Bb7+ Kc3 Bhd5 Kd4 Qd8 Rb2 Qd6 Ra2 Rg2 Qab5 N5c4 Qd1 Ra4 Qdb3 Na5 Rf3 Rf2 Qa6
Qr2RB2/1b1B1q2/2Qq4/Ppn2Q2/2RBBnN1/qk2b1r1/qn3Q2/4n2K b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Ra5 Ng4 hxg4 Bb2 Ra6 Bc1 Ra8 Kf2 Kf7 Kg2 b5 a4 e5 d4 c5 h4 e4 f6 g3 h5 e3 h6 c4 h7 c3 a5 b3 d6 Ke6 g6 Kd5 f7 b2 d7 b1Q g7 e2 Be3 Kc4 d5 c2 d6 c1N Bd4 Na6 Qe1 Rb8 Ra4+ Kb3 Rc4 Bb7+ Nf3 Nf6 g8B Qa2 Qf2 Nd5 Ne5 Nc5 Ng4 Bh6 f8B N1d3 Be6 Rg8 h8Q Nb2 Qf6 e1N+ Kg1 f3 Bg2 Bf4 Rh8 Be3 Qf5 Nf4 Kh1 Qe7 d8Q Qf6 Qd2 f2 d7 Qa3 Be4 g2+ Kh2 f1Q Qb6 Qe2 d8Q Qf7 Qc6 Qd1 Qdc8 Qda1 Bd7 Q1a2 Be7 Rg6 Re8 Rg7 Bf8 Rg6 Kg3 g1Q+ Qg2 Qf1 Kh2 Qd3 Kh1 Qd1 Qf2 Rg7 Nh2 Rg3 Ng4 Qd2 Bc3 Qd6 Bd4 Ba8 Q8a6 Bb7 Qa8
r1r3Qb/1Q4Bk/1Rb4p/2PN3B/1RnQ3K/RbnQ4/b3q3/q2Rn1n1 b - - 0 1 illegal: No possible last move
2b1qk2/3r2Nq/2P3NB/1pR2q1N/n4N1R/r3Rn2/QR2rq2/3Qr1bK b - - 0 1 legal: proof: d4 a5 g4 f5 f4 g5 e4 h5 exf5 c5 b4 axb4 Bh3 cxd4 fxg5 Qb6 g6 Qa5 g5 Qd8 Bg4 hxg4 Kf2 e5 Kg2 b5 a4 d5 h4 g3 c4 d3 f6 d4 f7+ Ke7 h5 e4 c5 d2 c6 d3 g7 b3 a5 b2 h6 e3 h7 e2 a6 e1R a7 Nd7 g6 Nh6 g8Q Nb6 g7 Qc7 Nh3 Nf5 Ra2 Na4 Nf4 Nd4 Nc3 b1Q Ne4 Nf3 Nf6 Qe5 Ne8 Qf5 Rh4 Re2+ Kh1 Qc2 Qf1 d1R Rb2 d2 Nf6 Qce4 N6h5 Rde1 Qg1 d1Q Qf1 Rb8 a8R Qdd7 Ra6 Ra8 Be3 Nb6 Ra3 Na4 Bc1 Ra7 Re3 Qe8 Bd2 Rd7 Qg1 Ra1 Qd1 Ra3 Bc1 Kd8 Bd2 Bc5 f8N Ke7 Qa2 Rg8 h8N Bd4 Reb3 Bg1 N8e6 Qh7 Bc1 Qef5 Re3 Rf8 g8R Rf6 Nd8+ Re6 Rg5 Kf8 Bd2 Qc2 Rc5 Qcf5 Bc1 Re1 Rd3 R6e2 Re3 Bb7 Bd2 Bc8 Nde6+ Ke7 Neg7+ Kf8 Nh3 Bf2+ Ng1 Ne5 Rd3 Bd4 Bh6 g2+ Kh2 Bf2 Nh3 Be3 N3f4 Bd4 Rg4 Bf2 Re3 g1Q+ Kh3 Qf1+ Kh2 Bg1+ Kh1 Qf2 Rh4 Nf3 Nhg6+
1nKBrqbr/2b1Q1r1/1bBBBN1R/1p2R1Pq/8/2kbq1Q1/8/4RbR1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 Nc6 g5 Nd4 Nc3 Ne6 Ne4 f3 Nf6+ gxf6 g6 Ng5 hxg5 f5 Bb2 f4 Ba3 Qd7 Bc1 Qd8 Kf2 Kd7 d4 Kd6 a4 h5 e4 b5 g7 f5 a5 c5 a6 h4 a7 b3 Qd2 b2 Qc3 b1Q Qb2 h3 Bc4 h2 Qb3 Ne7 g8R Be6 Rg6 Qd3 Ne2 Nc6 Rh6 Nb8 Re1 h1Q Nc3 Qh5 Ba3 Qf6 Rg1 Bg8 Rae1 Be7 Bb4 Bd8 Ba3 Bb6 e5+ Kc7 e6 Kd6 Bb4 Qf8 Ba3 Qe4 e7+ Qe6 e8R Bc7 Kf1 f2 Kg2 f3+ Kg3 f1R Kf4 f2 Re5 Ra1 Bb4 f1B Ne4+ Kd7 d6 Kc6 d7 Bd3 d8Q Kb6 Bd5 c4 Nf6 c3 Bc5+ Ka5 Qe7 c2 Bd6 Ra4 Bc4 Ra3 d5 c1B+ Re3 Bb2 Ree1 Bd4 Re5 Bdb6 Ree1 Bf1 Qg3 Bd3 Ba2 Qee2 Bb3 Qd2+ Ke5 f4 Bc4 f3 Ba2 Bgh7 Ke6 f2 Bb3 f1B Re5 Nc6 Kd7 Nb8+ Kc8 Bg8 Qg7 Be6+ Kb7 Bd8 Rf5 Bg8 Re1 Nd7 Rfe5 Qe3 Qh7 Rc8 a8B Nb8 Ba2 Be7 Qf7 Re8 Bc4 Bed8 Kc8 Ra4 Bc6 Ra2 Qe7 Rf2 Ne4 Rf7 Nf6 Ka4 Ba3 Rfh7 d6 Rg7 d7 Bdc7+ d8B Ka5 Be6 Ka4 Bed7 Kb3 Be6+ Kc3 Bd6
k3qRNn/R1Q4Q/3N4/qQ2Pr2/q1q1q2Q/q2nBN1p/3N3r/1Knb4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Bg2 e4 Bf3 exf3 hxg5 Qf6 Kd2 Qe7 Ke1 Qd8 Kd2 h5 c4 f5 Kc2 a5 b4 d5 e4 Kd7 g7 Kc7 e5 Kb7 c5 a4 g6 f2 b6 f1Q b5 f3 Ba3 f2 Nh3 d3+ Kc1 d4 Bb2 d2+ Kc2 f4 Qf3+ Nc6 Qe2 d1N Qe3 f3 Ra2 d3+ Kc1 h4 Ba3 d2+ Kc2 Nge7 g8Q Qe2 g7 f1Q Bb2 f2 Ba1 a3 Qh6 Bg4 Ng5 Ng6 Bd4 Qh3 Rf1 Nc3 Rb2 a2 Qh5 Rh6 Qh7 a1Q g8N+ Qe7 Rb4 Nh8 Rb3 Kb8 b7 Qa5 Kb2 d1Q+ Nd2 Nb4 c6 Qe4 Bc5 Qhd3 Be3 Bf3 Qg4 Ra6 Qf4 Rb6 c7+ Ka7 Qg4 Qe8 c8N+ Kb8 Qf4 Rbf6 Nd6 Ne2 Qh2 Nc1 Qg3 Nc2 Kb1 Rh5 Rb2 Qda3 Qg4 h3 Qh4 Rf4 Rb4 Rg4 Rb3 Rg2 Rb2 Rh2 Rb4 Qd4 Rb2 Ne1 Rb4 Ka7 b6+ Ka6 b8Q Qda4 b7 Bd1 Qbc7 Ka7 Rh1 f1Q b8Q+ Ka6 Rb5 Qfc4 Rf1 Ned3 Rf8 Qe4 Ngf3 Rf5 Rb2 Qd8 Qb4 Qde8 Qbc5 Qb7 Rb6+ Ka7 Qb4 Ka8 Qb5 Qbc6 Rb7 Q6e4 Ra7+
r1Q3Q1/1k5K/4n3/n1Bn1B1R/rnB2rRR/pr4P1/3N2Bb/1R2rq1q b - - 0 1 legal: proof: f4 b5 d4 g5 a4 gxf4 axb5 c5 h3 cxd4 Nf3 e5 Nh2 Bb7 Nd2 Bf3 Nb3 Bg4 hxg4 Qf6 Nf3 Qd8 Nbd2 e4 Ng1 Ne7 Ndf3 exf3 Rh5 Ng8 Rh2 Qe7 Rh1 Qd8 Kd2 a5 Kd3 f5 c4 d5 e4 Kd7 b4 Kc8 g5 h5 c5 a4 c6 f2 c7 h4 b6 a3 g6 h3 g7 f3 b5 h2 e5 f4 e6 Ra4 e7 Nf6 e8Q Nh7 g8B Kb7 Qh5 Na6 Qe2 Qf6 Qf7 Ng5 Qc2 Ne6 Nh3 Bd6 Rg1 h1Q Ng5 Be5 Rb1 Nb4+ Kd2 d3 Ne4 d4 c8B+ Kb8 Bd7 Kb7 Qg6 Bd6 Bf7 Rha8 Qg8 Nf8 Bc4 Ne6 Be8 Qf5 Bg6 Qf8 Bf5 Bc7 Be2 f1R Bd1 f2 Bf3 Re1 g3 f1R Bg2 f3 Qc3 f2 Bb2 Kb8 b7 Bb6 Ba1 Ka7 b8R Re3 Rd8 Rfe1 Rd5 f1R Qc2 Bc5 b6+ Kb7 Qc3 Rf4 Qc1 Qh2 Rh1 Qg1 Rh4 Qh1 Bg6 Qf5 Qc3 Qfh3 Rdh5 Qf1 Bf5 Qhh1 Rb3 Rb1 Qc2 Ree1 Rc3 Rb3 Rg4 Kc6 b7 Kb6 b8R+ Kc7 Rd8 Kb7 Rd6 Ba7 Rb6+ Kc7 Rhh4 Nc6 Bb5 Rbb1 Bg6 Rbb4 Ra6 Kb7 Rc5 Na5 Rch5 Rb2 Rc6 Rb3 Qc5 Bb6 Qcf8 Ba7 Rc1 Bc5 Bc4 Ba7 Rd1 Bc5 Kc1 d2+ Kc2 Bb6 Rb1 d1N Kd2 d3 Bd4 Nc3 Qe8 Na2 Bg1 Bc7 Bf2 Be5 Bc5 Bd4 Qef8 Bg1 Qd8 Bh2 Bh7 Rd1+ Ke3 Ng7 Kd4 d2 Ke5 Ne6 Bf5 Re1 Kf6 d1N Kg6 Nb4 Kh7 Ne3 Nd2+ Ned5 Qc8+
nR1brqR1/RQk5/3r1Nn1/2Br1r1p/1QN1n1N1/K3P1q1/8/N2Rnn2 b - - 0 1 illegal: No possible last move, all moves rejected
N4qB1/8/2nn1pN1/nN2qnkN/KBbBR3/3n2P1/1bBq4/Q2q1Qr1 b - - 0 1 legal: proof: a4 a5 d4 c5 b4 cxd4 f4 b5 axb5 e5 Ra3 g5 Rf3 gxf4 g3 Ra6 Re3 Rg6 h3 e4 Rf3 Rg4 hxg4 exf3 Kd2 Ke7 e4 Kf6 c4 h5 Kc2 d5 Kb3 f2 c5 d3 b6 h4 b5 h3 c6 f3 b7 d4 c7 h2 b6 a4+ Kc4 d2 Kb5 d3 Ne2 a3 Nf4 a2 Ka4 a1Q+ Ba3 Nc6 b8B Ba6 c8N Nge7 b7 Na5 Ba7 Bc4 b8Q Bg7 Nb6 Qf8 Na8 Nec6 Nc3 Rh4 Rg1 h1N Qbb1 Rh6 Bg2 f1N Nb5 Ne3 Re1 f2 Qdc1 Qc3 Qa1 f1N Bb4 Nf2 Re2 Rh1 e5+ Kg5 e6 Kf6 e7 Rg1 g5+ Kf5 g6 Kg5 e8B Bd4 g7 f6 g8N Qb2 Bd6 Bc3 Be4 Nf5 Bdc5 Nd6 Bf7 Ne3 Bb4 Nef5 Nh5 Be5 Bfd5 Qd4 Be6 Qc5 Bf7 Bb2 Qf1 Qe5 Ne7 d1Q+ Rc2 d2 Ng6 Qe1 Bd4 d1Q Bg8 Qc1 Re2 Qcd1+ Bc2 Nd3 Re3 Qed2 Re4
2K4Q/P1N2b1r/2B1N1Qb/2rqq2k/b5r1/Q1n1p1qN/q2NR2R/Q6b b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 f5 b4 axb4 g4 h6 e4 fxe4 g5 Ra3 f5 Ra5 Bb2 Ra8 Be5 Nd7 Bf4 Ndf6 gxf6 Ra4 Be3 Ra8 Bg5 hxg5 Kf2 Kf7 Kg3 c5 Kg4 e5 d4 b5 h4 e3 a4 e4 a5 e2 h5 e1Q h6 c4 a6 b3 h7 c3 d6 b2 d5 b4 a7 b3 d7 c2 d6 c1Q Qf3 Qcd2 Qf4 Ne7 Nh3 Nd5 Bc4 Bb7 Ra6 Rc8 Ng1 Rc5 Bd3 Nc3 Nh3 e3 Rh2 Bh1 Ra2 Qg3+ Kh5 g4 Kg5 g6 Qe4 Qe5 Bb5 g3 Bc6 g2 Qa4 Qf2 Nd2 b1B Kg4 Qa8 d8Q b2 d7 g5 Qb6 Bh6 d8Q Be4 Qa3 b1B Qd4 Bbc2 Rb2 Ba4 Ra2 Rg8 h8Q Bd5 Qb1 Qd8 Qa1 Bc4 Qe4 g1Q+ Qg2 Qdd5 Qg3 Kf8 f7 Ke7 f8N Kf7 f6 Rg7 Qg2 Rh7 Ne6 Kg6 f7 Qb1 Rb2 Qa2 Nc7 Qe1 Ne4 Bcb3 Re2 Qh4+ Kf3 Kh5 f8N Qd1 Nd2 Bf7 Nb1 Qd8 Nfe6 Qg8 Nd2 Qhd4 Qg7 Qed5+ Kg3 g4 Qh8 Q4e4 Neg5 Qe7 Kf4 g3 Qe4 g2 Qd3 Bg7 Nge6 g1R Qf5+ Rg5 Qe4 Bh6 Qg6+ Kh4 Qe5 Rg4+ Kf5 Qee8 Kf6 Qb8 Ke7 Qb5 Qh8 Qe5 Qc2 Kh5 Kd7 Qg6 Kc8 Qbb3 Be8 Qbd5 Bc6 Qgg5 Qcb1 Qgf4 Qe4 Qg3 Qg6+
4NnK1/1B6/2BQnp2/B1n4n/5PN1/Qn2rqn1/2krRNb1/BNr4r b - - 0 1 legal: proof: b4 b5 e4 d5 a4 dxe4 Qe2 g5 Qd1 g4 axb5 c5 Ra3 cxb4 Ra5 Qd7 Ra1 Qd8 h4 Nf6 f4 Kd7 Ra3 Qa5 Rf3 gxf3 g4 Ke8 g5 Bh6 g6 Bg5 hxg5 Ng8 Bd3 Qb6 Bf1 Qd8 Kf2 Kd7 Ke3 Kd6 Kd4 a5 c4 e5+ Ke3 Kc5 b6 h5 d3 a4 b7 f2 g7 b3 g6 Kb4 c5 b2 c6 h4 c7 h3 d4 a3 d5 a2 d6 a1N d7 h2 Qf3 Kb3 Nc3 b1R Nb5 Rh3 Bg2 f1N+ Kf2+ Kc2 Bb2 Ng3 Ke3 Rc1 Nc3 Nb3 Nb1 Ra2 Ba1 Nf6 g8N Nfh5 g7 f6 Nh6 Qe7 d8B Qa3 g8B Nd7 b8Q Bb7 c8N Nf8 Ng4 Ba8 Bd5 Bc6 Ne2 Ba8 Rf1 h1R Qd6 Bc6 Nec3 Qa8 Nd1 Qb7 Kf2 e3+ Ke1 e4 Ba5 e2 Kf2 e1N Ke3 Nd3 Re1 Ndc5 Ndf2 Nd2 Kd4 Ndb3+ Kc4 Nce6 Qe3 Qa8 Qa7 Bb7 Bc6 e3 Kd5 e2 Qa6 Rb2 Qa3 Ra2 Nd6 Rb2 Ne8 Ra2 Rf1 e1N Qd6 Nd3 Re1 Rb2 Qa3 Ndc5 Re2+ Nd2 Kd6 Ra2 Ke7 Rb2 Re1 Ndb3 Kf7 Ra2 Kg8 Rb2 Bb5 Bd5 Qd6 Qb7 Bgf1 Bg2 Bc6 Qa8 Ba6 Qb7 Ba4 Qf3 Bc6 Qe2 Bd2 Nge4 Qe7 Re3 Qb4 Neg3 Qd6 Qf3 Re2 Ra2 Qa3 Rb2 Nh3 Kd1 Ba5+ Rd2 Bab7 Kc2 Nhf2
rRb4n/k3N2q/3pQ1R1/1B2N2q/3P3r/2QpKb2/n1R1b1Q1/1Q1Rr2q b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 c4 Qd2 f3 Qd3 cxd3 Nh3 f5 Ra3 h6 Ng1 f2+ Kd1 f4 Ra2 f3 Bg5 Bd6 Ra1 Bf4 gxf4 hxg5 Kd2 a5 b4 g4 h4 g5 e4 a4 c4 a3 b6 g3 c5 g4 e5 d6 e6 a2 b5 g2 h5 g3 b7 Qd7 b6 Kd8 f5 Ne7 c6 Ra3 f6 Rf8 h6 Ra8 c7+ Ke8 h7 Nbc6 h8R Ra7 b8R Ng6 e7 Nb4 b7 Ra8 R8h2 Rh8 Ke3 Rh4 Nc3 Nh8 Rd1 a1Q Nd5 Na2 Be2 Qb5 f7+ Kd7 f8Q Kc6 Qg7 f1B Qg8 f2 Nf3 g1Q e8Q+ Bd7 Qg5 g2 Qe6 Bc8 Ne7+ Kb6 Ne5 Ka7 Bf3 Be2 Bc6 Bf3 Bd7 Qd5 Bb5 Qf1 Qgg6 g1R Rg2 Qc3 Rhh2 Qcc5 Rg3 Qh3 Qgg8 f1B Rc2 Qh1 Rg6 B1e2 Qg7 Re1 Qgg8 Bd7 c8Q Qa3 Qc3 Bc8 Rh6 Qac5 Qg2 Qc7 Rg6 Qd7 Nc4 Qh5 Ne5 Qc7 Nf5 Kb6 Bc4 Ra4 Ra8 Qg7 Ne7 Qgh7 b8Q+ Bfb7 Bd5 Ra7 Bc6 Ka6 Ba4 Bd5 Qbb3 Bdf3 Rb8 Ra8 Bb5+ Ka7 Qb1
7Q/bqrpPk1p/b4nrB/5n2/2rR3R/R2R2Q1/KN1q4/QBbq3Q b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 axb5 g5 d4 cxd4 Nc3 dxc3 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 b4 f5 g4 a5 e4 f3 g6 c2 Kd2 f4 Kc3 a4 Kb2 f2 b6 f3 b7 Qe7 b5 Nh6 c5 Qh4 b6 Bg7+ e5 Qf6 g5 Na6 b8R Nb4 b7 Qe7 c6 Ra6 c7 Rf8 Ne2 Rd6 Rh4 Nd5 Nf4 Qf7 Nd3 Bh8 g7 Qf4 g8R a3+ Kb3 a2 g6 Ra6 e6 Bd4 g7 Ba7 e7 Re6 Bh3 f1R Bf5 f2 Qf3 Qg5 Qh1 Kf7 Bd2 c1B Ra8 Bb8 Raa4 Ba7 b8Q Ba6 c8Q Rg1 Be3 f1Q Qc3 Rc6 Rad4 Rc4 Qa5 Nf6 Qbh2 Qfg2 Nb2 Bd2 Rd1 a1Q Qd6 Qb1 Qa1 Qd3+ Ka2 Bc1 Be4 Qde2 Bb1 Nf5 Bf4 Q5g4 Bh6 Rfc8 Qf4 R8c7 Rb8 Q2h3 R1d3 Qhf3 Rbb3 Qd2 Ra3 Qb7 Qe3 Qgd1 Qeh3 Rg6 Qg3 Ne4 g8Q+ Kf6 Qc8 Kf7 Qb8 Nf6 Qh8
r2n1Q2/2NQN3/n1rBrRq1/n1r1RR2/5p1p/P1k2r2/3RQ1Q1/K3b1b1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 Bg2 g6 Be4 f3 Bf5 gxf5 g5 f4 h3 Bg4 hxg4 Qe7 Bb2 Qd7 Bc1 Qd8 d4 Ke7 Kd2 Kd6 Kc2 c5 Kb2 b5 e4 h5 g6 f5 a3 f2 g7 f1N g5 h4 g6 b3 Nd2 b4 Qe2 c4 Rh2 f3 Nb1 f2 Nh3 Nd2 Rh1 f1R Ng5 Rh5 Ne6 Qb6 Nc7 Na6 Nc3 Rf3 Rf1 Nh6 g8Q Nf7 g7 Nd8 Qh8 Rh6 g8Q Re6 Qgg2 Bh6 Rb1 Be3 Ka1 Bg1 Rf2 Qc6 Bb2 Qe8 Rbf1 Qg6 Bc1 Re7 Qf8 b2+ Ka2 b1R e5+ Kd7 d6 Kc6 d7 Nb3 d5+ Kc5 e6 Kd4 d6 Na5 Bf4 Rc1 N3d5 c3 Bg3 c2 Kb2 Re8 e7 b3 Bh2 Rc3 Rf3 Rc6 R1f2 Rf1 Bf4 c1B+ Ka1 Nf7 d8R b2+ Kb1 Rc5 d7 Bd2+ Ka2 b1R Bd6 Rbc1 Kb2 R1c3 Ka2 Bc1 Ka1 Bd2+ Qe1 Bh2 Rb8 Rc6 d8Q Rc2 Rb2 Bg1 Qd7 R2c5 Ra2 Kc4 Qd1 Be1 Rad2 Red8 e8R Rdc8 Ree2 Re8 Re6 Nd8 Re5 Re6 Ne7 Qf7 Rg3 Qg6 Rg5 Kc3 Rf4 Rf3 Qde2 Qh5 Rg6 Qh6 Rf6 Qg6 Rg4 f4 Rgg5 Ndb7 Rh5 Nd8 Rhf5
Q1k2BR1/1b1nQK1b/2r1R1B1/1pq2n2/3nN1QP/6Qb/rB3p1B/r2b4 b - - 0 1 illegal: No proof kernel
1qrQrnb1/8/p1Q1B2K/6RP/pn4kr/2N2NnN/Q2q1Q2/B1Nn2b1 b - - 0 1 legal: proof: f4 b5 b4 f5 c4 h5 g4 g5 a4 d5 cxd5 bxa4 e4 Rh6 Ra3 Rh7 Rg3 Rh8 exf5 gxf4 g5 Be6 Rg2 Bc8 Rg4 hxg4 Ke2 Kf7 d4 c5 h4 e5 g6+ Kf6 h5 Kg5 f6 c4 f7 e4 b5 e3 b6 a6 d6 c3 d7 c2 g7 g3 Kf3 e2 d5 e1Q b7 g2 d6 Nh6 g8Q+ Bg7 f8Q Qb4 Nh3+ Kh4 Qa2 g1R Nc3 Qbb6 Bb2 c1N Qdd5 Nd3 Qc6 Nf5 Ba1 Nb4 Bc4 Ng3 Be6 Bd4 Qf5 Re1 Rf1 Bg1 Rf2 Qg5 d8Q Nd7 b8N Nf8 Nd7 Qb8 Ne5 Re4 d7 Rc4 Nd3 Bb7 Qce4 Bd5 Nc1 Rd4 Qff6 Bb3 Qc6 Re4 Bf5 Bg8 Be6 Rc4 Qa5 Rd4 d8N Re4 Qd4 Qd5 Qa7 Qd2 Nf7 Rc4 Nfg5 Rd4 Bf7 Rc4 Qd8 Rd4 Kg2 Kg4 Nf3 Qb6 Nh4 Rh7 Nb5 Rc8 Re2 Qb8 Rf2 Rc4 Bd5 Re7 Bf7 Re8 Be6+ Nf5 Nc3 f3+ Kf1 Kg3 Qf7 Qh6 Ke1 Ne3 Kd2 Qg5 Rf1 f2 Ke2 Kh2 Kf3 Nd1 Qa7 Qh6 Qad4 Qe3+ Kg4 Qd2 Kf5 Kg3 Q4f6 Rf4+ Kg5 Nb2 Kh6 Nd1 Re1 f1N Re5 Qe2 Qf7 Qe1 Qa7 Qd2 Nf3 Rg4+ Qe3 Rh4 Rf5 Kg4 Nd4 Qdh2 Nf3 Ng3 Qec5 Qe2 Qf2 Qd2+ Rg5#
3Kb3/3R1pQ1/QQ1n2p1/1q2Q1B1/r1N2b1q/4q1q1/1r1PkB1n/BR3r1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nc4 f3 Ne3 Rh5 Ng2 fxg2 Ra6 Rh3 Ra1 Rh8 e4 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 b4 a5 h4 c5 h5 a4 e5 g6 e6 a3 e7 a2 e8Q Nf6 h6 Ra7 h7 Qd6 b6 Be6 Kb5 c4 b7 c3 Qa4 c2 Qa6 Ke4 Bb2 c1Q Nf3 g1Q Ne5 g2 Nc4 Nc6 b8Q Kf3 Qbb6 Bd7 Qe5 Qe7 d6 Be8 d7 Ng4 d8B Qh4 Bg5 Qe3 Rh3+ Kf2 Rb1 g1Q Ba1 Nh2 Bg2 Bd6 Bh1 Ke2 Qg7 Rf8 h8Q Qcf1 Qe5 Qf5 Qg7 Ne7+ Ka5 Ra8 b5 Nc8 Rf3 Qd7 Rf4 Bb8 Rd4 Qgg3 Rd6 Qf5 Rd7 Rh8 Qbf6 Ra7 b6 Nd6 b7 Rf8 Qd8 Qf1 Qb6 Bc7 b8B Rb7 Bb2 a1R+ Kb4 Rg8 Ba7 Rh8 Bd4 Ra4+ Kc5 Qf5 Kc6 Rh5 Qba5 Rb2 Q5b6 Qd3 Bf4 Rf5 Bg5 Rf1 Bc3 Bd8 Bd4 Be7 Kc7 Qb3 Bc3 Bf8 Kd8 Qb5 Qh7 Bh6 Qhg7 Rbb4 Ba1 Rb3 Be7 Bf4 Bg5 Rb2 Qc7 Qe4 Bf2 Qee3 Qcb6
1n2N2q/1K1P2N1/2RQB2R/3nb3/rn1rp1R1/2q3N1/pQ1rb1k1/1R1n2N1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 g4 h6 f4 Be6 b3 Bc8 Bb2 Nc6 Bf6 gxf4 g5 Nb8 g6 Bg4 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 h4 Kd6 d4 a5 h5 c5 g7 e5 b6 a4 h6 g4 b4 a3 h7 f3+ Ke3 g3 b5 f2 b7 c4 b6 a2 Nd2 c3 Rb1 c2 Bc4 c1N Rh6+ Nf6 g8N g2 Nf1 Bg4 Ng3 Bg7 Rg6 Bh5 Rg4 Nd3 Qd2 f1R Qb2 Rf2 Rc1 Ra6 Bb3 Rd2 Rc6+ Kd7 d6 Ra4 d5 Nb4 Rg6 Be2 Rg4 Ke8 d7+ Kf7 d6+ Nfd5+ Kf2 Ke6 Nf6 Rf8 h8R Qc8 Rh3 Rd8 Ne8 Bf6 Rh6 e3+ Ke1 e4 Bc4 N8a6 b8R Rd4 b7 Ke5 Ra8 Bg7 b8Q Bh8 Qc7 Nb8 Raa6 Bg7 Bb3 Bf6 Rc1 Bg7 Rb1 Bf6 Rc6 Bh8 Rg5+ Kf4 Bc4 Be5 Rgg6 Nc3 Be6 Nd1 Qb6 Bh5 Qa6 e2 Qd3 Nd5 Kd2 e1N Rg5 Be2 Rg7 Nf3+ Kc2 Ne1+ Kb3 Nc2 Qa6 Ncb4 Rg4+ Ke3 Qb6 Kf2 Qc7 Rd3+ Kc4 Rd2+ Kc5 Qa6 Qb6 Qd3 Qa6 Qa3 Qd3 Qc3+ Kb5 N5e3 Kb6 Ned5+ Kb7 Ra5 Nf3 g1Q Qa6 Qg2 Ng1 Qh3 Qb6+ Kg2 Qc5 Rc8 d8N Ra4 d7 Qh4 Qd6 Qf6 Bg8 Qh8 Ne6 Rd4 N6g7 Rd2 Ra6 Rc4 Be6 Rcd4 Rc6
3NK3/1QBpn3/p3N1r1/4B2N/4n3/k4BNB/PRnqb1r1/2bq1Qnq b - - 0 1 legal: proof: d4 c5 b4 f5 bxc5 g5 e4 e5 dxe5 fxe4 f4 Na6 g4 Nb8 Nd2 gxf4 g5 h5 Rb1 Qe7 Rb3 Qf6 Rg3 Qd8 Rg4 hxg4 Ke2 Ke7 h4 b5 c4 f3+ Ke3 f2 Kd4 a6 Kd5 g3 g6 e3 h5 e2 c6 e1Q e6 b4 c5 b3 c7 b2 g7 b1N h6 g2 h7 Qe2 c6 Qe3 Ne2 g1N Ne4 Ra7 Nd6 Qh3 Nf7 Rb7 Rh2 Qh4 Bf4 Na3 Bh3 f1Q Ng3 Rb6 Rb2 Bb7 c8B Nc2 Bc7 Nf6+ Ke5 Qf3 Qf1 Rg8 h8B Qd1 Kf5 Ba8 Kg6 Ne4 Bb7 Qc8 Nd8 Qf4 Be5 Qfd2 c7 Nc6 Bf4 Qb8 c8Q Qbd6 Qc7 Q6d3 Qb8 Q3f3 Bc7 Qh1 Qa7 N6d4 Bd5 Nf5 Qb8 Bc6 Qb7 Bb5 Bc6 Be2 Bd5 Ke8 Bc6 Ba3 e7 Rf8 g8N Rf6+ Kh7 Rg6 Bhe5 Rg5 Bd5 Rbg6 Kh8 Nc3 Bf3 Ne4 Ne6 Kf7 e8N Ne7 N8g7 Rg4 Nf6 R4g5 Rb6 Bc1 Nd8+ Kf8 Rb2 Rg4 N3f5 Rg2 Nfh5 Qf4 Nc6 Qfd2 Nfg3 Kf7 N7f5 Ke6 Nfg7+ Kd5 Nd8+ Kc4 Kh7 Nf5 Kg8 Ne7+ Kf8 Kc5 Ke8 Kc4 Qc8 Kc5 Rb8 Kc4 Qb7 Kc5 Nge6+ Kc4 Bb6 Kb4 Bbc7+ Ka3 Qa7 Qc3 Rb2 Qcd2 Qb7
2qNb1r1/k1P5/2n1p1p1/2b2BQ1/K1Q1r2b/2bB2Q1/QBB2qN1/1nR1q3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 fxg5 cxd4 b4 Nh6 g4 Nf7 g6 Ne5 g7 Nf7 g8B Bg7 g5 Ne5 g6 Ng4 Ra6 Bf8 g7 Nf6 Rb6 Ng4 Rh6 Nf6 Rg6 hxg6 Kd2 a5 c4 d5 Kc2 Kd7 Kb3 Kc7 h4 Kb6 h5 e3 c5+ Kb7 b6 e2 h6 e1B b5 d3 h7 d4 Qe2 d2 Nh3 d3 Na3 d1Q+ Nc2 d2 Qc4 Bf5 c6+ Kc8 b7+ Kc7 Bb2 Kb6 Nf4 Ka7 Ng2 Bh4 Be6 Qe2 g8B d1Q Ka4 Qde1 Nb4 Q2f2 Bd3 Nd5 c7 Bg4 Bef5 Nc6 Bf7 Rg8 h8Q Bf3 Qf6 Qc8 Qg5 e6 Be8 Bc5 Qg3 Qed2 Rc1 Qde1 Qg5 Ne3 Qa2 Nc4 Bd7 Na3 Qg3 Ne7 Bc2 Nb1 Nc6+ Kb6 Nd8 Ka7 Bcd3 Bc6 Be8 Bd7 Bc2 Nc6 b6+ Ka6 b8Q Ra7 Bf7 Be8 b7 Kb6 Qc4 Ra6 Qa8 Ra7 b8Q+ Rb7 Kb3 a4+ Ka2 a3 Kb3 a2 Ka4 Bd7 Be8 a1B Ba3 Bh8 Bb2 Bc3 Kb3 Qee2 Qa2 Qee1 Qba8 Rb8 Q8a3 Rb7 Ka4 Ka7 Qab4 Rb5 Qcg4 Rb8 Qg5 Rb6 Qbc4 Rb5 Ba3 Rb2 Bcd3 Re2 Bb2 Re4 Bc2 Nb4+ Qb5 Bc6 Bd7 Qb8 Bc8 Be8 Ba6 Nc6+ Qb4 Qa8 Bad3 Qc8 Qbc4
1Q3QNb/1pB2Rb1/8/1k1qPN2/b5Qq/4n1NQ/2rqbpr1/n4BNK b - - 0 1 legal: proof: b4 a5 g4 axb4 a4 f5 f4 h5 c4 d5 cxd5 e6 Ra3 e5 Rf3 fxg4 f5 h4 Rf2 h3 Rf4 exf4 Nxh3 Be7 Ng1 Bf8 Kf2 Kd7 Kg2 g5 d4 c5 e4 g3 h4 f3+ Kh3 b3 d6 Kc6 a5 g2 Kh2 b2 f6 g4 d7 c4 h5 c3 h6 c2 a6 Bg7 f7 Ne7 f8Q Nf5 h7 Ne3 a7 Rg8 h8N Na6 Nc3 b1B Nf7 Nb4 Nce2 Kb5 d5 f2 Bd2 c1Q d6 Nbc2 Ba5 Na1 Bc7 Qd2 Nh6 Bd3 Ng3 Be2 Nhf5 Qe7 d8Q Bd7 Qde8 Rc8 a8Q Qe5 Qe6 Qed5 Qb8 Bh8 Bd8 Rc2 Bc7 Be8 d7 Rg6 d8N Bg7 Nh5 g3+ Kh3 Rg5 Nf7 Rg4 N7h6 Rg5 Nf3 g1Q Ng8 g2 Nhg3 Bh8 Rh2 Qh1 e5 g1B N3h4 Qhe4 Nf3 Qec4 Rg2 Bh2 Ng1 Rg7 Ne4 Bf4 Neg3 Rg6 Kh2 Bh6 Kh1 Bc6 Qd7 Rg5 Qh7 B6g7 Qh2 Qh4 Qh3 Bc4 Qg4 Be2 Ne4 Be8 Rg3 Rg6 Rf3 Rg5 Qh5 Rg2 Neg3 Ka6 Qg4 Ba4 Nfh6 Kb5 Rf7 Bc4 Nhf5 Bd3 Qfd8 Be2 Qf8
R1r1nqn1/bn3nBb/1QPR1QBk/1Q2n3/4p1Q1/B3p1n1/8/K1N1r2B b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 f5 g6 Nd2 Na6 Ndf3 Nb8 Ne5 Rh6 fxg6 Rh7 g5 Rh8 Ng4 hxg4 Kd2 a5 c4 d5 Kc2 e5 Kb1 a4 b4 e3 h4 d3 b6 g3 b5 e4 c5 d4 h5 g2 b7 d2 h6 a3 c6 d3 b6 a2+ Kb2 Na6 b8Q Bf5 g7 Kf7 b7 Kg6 h7 Bc5 Nf3 g1N Rh5 Ne2 Ng1 Ng3 Qb3 Nc7 Qb6 Qf8 Ne2 Ne8 Qf4 Rc8 Qb5 Bb6 b8Q Ba7 Q8b6 d1N+ Kb3 d2 Rh6+ Kf7 Bg2 Nc3 Ba3 d1N Bh1 Nb2 Nc1 Nc4 Rd6 Ne5 Qg4 Bg6 Kb2 Bf5 Rd7+ Kg6 Rd6+ Ngf6 g8B Kg7 g6 Kh6 Qd5 Nb5 Bf7 Ng8 g7+ Bg6 Rd7 Nbd6 Qdb5 Bf5 Bg6 Ndf7 Rd8 Ngf6 Rd6 Ng8 Rb1 a1N Qh4+ Nh5 Qf6 Nb3 Ra1 Na5 Ra2 Ng3 Ka1 Ne7 g8Q Nb7 Qd4 Ng5 Qge6 Ngf7 Qdb6 Ng8 Qg5+ Kg7 Qg4 Kh6 Qf6 Rd8 Re6 Rd1 Rd6 Re1 Bb2 Bb8 Ra8 Ba7 Ba3 Ne7 Bc5 Ng7 Qc7 Qb8 Ba3 Re8 h8B Ng8 Qcb6 Rf8 Rd3 Qd6 Rd5 Rc8 Bh5+ Bg6 Rd2 Qf8 Rd6 Ne8 Qe7 Ngf6 Qed8 Bh7 Bg6 Ng8 Qe7 Nf1 Qf6 Ng3 Bg7+
B1N1N3/rp1NK3/kb2B3/2r2b1R/1Nnr4/p1rb1P2/B1Q2qBQ/1n1b4 b - - 0 1 illegal: No proof kernel
3BQr1r/2q2p1R/4n1bQ/1qq1k3/B3R1B1/2q1rPKp/1q2R3/1b2RB1N b - - 0 1 legal: proof: d4 c5 b4 cxd4 e3 a5 Ba6 axb4 Bf1 d3 Kd2 d5 Ne2 g6 Ng1 d4 Ke1 d2+ Ke2 d3+ Kf3 Bg7 Ke4 Bd4 exd4 Nf6+ Ke3 Ng8 f3 g5 Nc3 g4 Ne4 g3 Nf2 gxf2 h4 Qa5 h5 Qa3 g4 Nc6 g5 Qa5 Kf4 Ne5 Kg3 Ng6 hxg6 Qd5 Kg2 Qd8 a4 Kd7 c4 Ke6 g7 h5 c5 b5 a5 b3 g6 b2 c6 b1Q c7 b4 a6 b3 a7 h4 d5+ Ke5 d6 h3+ Kg3 b2 d7 Nh6 Qb3 d1R g8R d2 g7 Re1 Rh2 d1Q Bg5 Qd5 Re8 Qc5 g8R Re3 Ne2 e6 Rg7 Nf5+ Kg4 Bb7 c8B Nd4 Qb6 Qdc7 d8Q Be4 Ng3 Bg6 Nh1 Qbc1 Rh7 b1B Qd7 Qb2 Kg3 Rb8 a8B Rf8 Bb5 f1Q Bd8 Qfc4 Ba4 Q4b5 Re2 Rh8 Ba6 Rc8 B8b7 Rb8 Bh4 Rc8 Re7 Rcf8 Qe8 Kf5+ Kf2 e5 Qa5 Rb3 Bc8+ Qbd7 Rd2 e4 Re6 Bc2 Bd3 Qdb5 Bd8 Kf4 Rad1 Bb1 Bf1 Rd3 Qc3 Kf5 Qc1 e3+ Ke1 e2 Kf2 Rb3 Rc2 Ra3 Qh6 Re3 Re7+ Kf6 Bg4 e1Q+ Kg1 Rc3 Rce2 Re3 Rc1 Qec3 Kf2 Ne6 Re1 Nf4 Bh5 Kf5 Kg3 Kf6 Re4+ Kf5 Rd4 Ne6+ Rf4+ Ke5 Bg4 Q7c6 Rc4 Qc7 Re4+
3Q1b1Q/1bb1pRNb/3Rp2P/2nN4/N1Br1bnq/1qN2k2/R7/3nRK2 b - - 0 1 legal: proof: d4 b5 e4 a5 g4 c5 f4 cxd4 a4 h6 axb5 Nf6 f5 Na6 e5 Nb8 e6 fxe6 Be3 Ng8 Bg5 hxg5 f6 Ra6 Ra3 Rc6 Ra2 Rc5 Ra1 Rf5 gxf5 Rh6 Nc3 Rh5 Nb1 Rh8 c4 Kf7 h4 d5 b4 a4 h5 g4 c5 g5 c6 Bg7 c7 g3 h6 g2 b6 g4 b5 d3 b7 g3 b6 a3 Rh4 d2+ Ke2 a2 Rg4 d4 Rg6 Qd5 Nh3 g1Q Rg4 g2 Re4 Qb3 Nf4 Nd7 b8R Nc5 Nh5 Qh1 Ra8 Qh4 Nc3 Bb7 c8Q Bd5 Ra6 g1B Re5 Be3 b7 Ne4 b8N Bf4 Nd7 Bb7 Qb8 Nc5 Qa8 Nd3 Nb6 Nc5 Qe1 d1N Qd2 Nd3 Nba4 Nc5 Re3 Bc7 Bg2 Bf4 Kf1 Bc7 Bd5 Bf4 Rb1 Bc7 Rb2 a1B Bc4 Bf4 Ra2 Bb2 Nb5 Bc3 Rb2 Ba5 Re1 Bac7 Rc2 d3 Nbc3 Nf2 Qd1 d2 Ra2 Qh2 Nb5 Qh4 Qa1 d1B Qd4 Bd8 Nbc3 Bc2 Qd6 Nd1 Qdb8 Ke8 f7+ Kd7 f8R Bdc7 f6 Bh7 f7 Nf6 Rb6 Ng4 Ra6 Bb6 Qe5 Kc6 Qeb8 Bd4 Qe5 Rg8 Qh8 Rg5 Qd8 Rd5 Re8 Bg7 f8N Bfe5 Ng6 Rd4 Rg8 Bf8 Rg7 Bb8 Rf7 Bd6 Ra7 Bbc7 Ng7 Bh2 Nf4 Bg3 Qe8+ Kd6 Nfd5 Bf4 Ne2 Ke5 Qd8 Ke4 Nec3+ Kf3 Ra6 Ndf2 Rc6 Nd1 Rd6
1BNQ1KR1/1BQ1B3/1Q1P3n/k1r5/q3N1qp/n2q2n1/Qpr1rn2/B1b5 b - - 0 1 illegal: No possible last move, all moves rejected
5Q2/1Q2r2p/1B1b1RR1/1bq5/b1qrQ1K1/Nk1q2PQ/2r1p1R1/bn1R1B2 b - - 0 1 legal: proof: a4 c5 f4 f5 e4 g5 d4 Nc6 g3 Ne5 h3 Ng4 hxg4 cxd4 Nc3 b5 axb5 fxe4 f5 Qb6 Nd5 Qd8 Nf4 gxf4 Kf2 Kf7 b4 d5 c4 e5 g5 a5 b6 a4 f6 Ke6 b5 a3 g6 e3+ Kf3 e2 b7 e1R b8Q d3 g7 e4+ Kg4 a2 f7 f3 c5 d2 c6 e3 c7 f2 b6 d4 b7 Kd5+ Kf3 d3 Ne2 Kc4 Nd4 Bd6 f8R Qg5 Rh3 Bd7 c8Q+ Qc5 Qd8 Ne7 g8Q+ Nd5 Qa7 Bb5 Qe2 d1Q Rh6 Rc8 Qg4 Nc3 b8R Nb1 Nc2+ Kb3 Rg6 d2 Rff6 Rf8 Qde7 Rfd8 Na3 Qdc2 Qeb7 d1B Qaa8 Qd3 Qh3 Bc2 Kg4 Bd1 Bg2 f1Q Qef3 Bc2 Qfe4 Qdc4 Bd2 Qfd3 Ba5 Rc7 Bb6 e2 Bf1 Re7 Rf2 Rc1 Rg2 Bd1 Rc8 Rc2 Qab8 Nc3 Rc1 a1B Rc6 Nb1 Q8a8 Bb8 Rce6 Rd4 Ref6 Bd6 Qf8 Ka4 Rh6 Rc3 Qd5 Kb4 Qb7 Bda4 Rhg6 Kb3 Re1 Rc2 Rd1
2r1QN2/1nQ4b/kq1pNQRq/1rP3np/pBBQ4/2B2n2/b1K3b1/5B2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 a4 b5 axb5 e5 f4 gxf4 b4 Nh6 g5 Ng8 Ra2 Be7 g6 Bg5 Ra3 e4 Rf3 exf3 hxg5 Qf6 Rh3 Qe7 Rh1 Qd8 Kd2 f5 c4 a5 e4 h5 c5 d3 g7 a4 e5 d6 b6 Kd7 b7 Kc7 g6 f2 b5 f3 e6 f4 e7 Ra5 e8Q Nh6 g8Q Be6 g7 Nc6 b8B+ Kb7 b6 Nf7 Nh3 Ka6 b7 Qb6 Na3 Ng5 Bb2 Rb5 Bc3 Nd8 Qgf7 Ba2 Nc4 Rf8 Kc1 d2+ Kc2 Rg8 Rg1 Rh8 Be2 f1Q g8B f2 Bc7 f3 b8Q Nb7 Nf4 Qh3 Qbd8 f1B Qff6 f2 Ne5 Qe3 Neg6 Bg2 Nf8 f1N N4e6 Nh2 Bf1 Nhf3 Qa1 Qf4 Bb4 Qe3 Qad4 Qf4 Qdd7 Qe3 Bd8 Qf4 Qc7 d1B+ Kb2 Be2 Kc2 Bec4 Qff7 Bd5 Bf6 Bc6 Be5 Qf6 Qfe7 Qh6 Qf6 Bcd5 Nf4 Bc6 Bgc4 Rg8 N4e6 Be4+ Qd3 Bh7 Bec3 Bh3 Rg3 Bg2 Rg4 Ne4 Rg6 Neg5 Nd7 Rf8 Qdd4 Rh8 Qec8 Re8 Ndf8 Rd8 Q8d7 Rc8 Qe8
q7/Qrbn1n2/2Qp1pB1/2Qn2qb/NBrR1N1B/2PK2B1/1Q5p/3b1k2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 h4 h5 gxh5 g6 h6 g5 b4 Bc5 h5 Be7 Ra3 Bc5 Rah3 Bf8 Rh4 gxh4 Kd2 Ke7 e4 Kf6 b6 Ke5 b7 a5 h7 f3 b5 Kf4 e5 Kg3 e6 Kf2 h6 d3 e7 h3 e8Q h2 b6 a4 Ne2 a3 Nbc3 a2 Nf4 a1Q Na4 Ra7 Ba3 Bd6 Bb4 Bc7 Qc1 Qg5 c3 Qa3 Qb2 d6 Qc6 Nd7 b8Q Ba6 Qc8 Rb7 Bg2 Bc4 Rd1 Be6 Bf1 Bg4 Bh3 Bh5 Bf5 Qa1 Bg6 Qa2 Rg1 Qad5 Rg4 Kf1 Ke3 d2 Qc5 Rb8 b7 d1B Qc6 Qa5 Kd3 f2 Qc5 Qa8 Rh4 Ba5 Q8c6 Rc8 b8Q Bc7 Qba7 Rb8 Rg4 Rb7 Rg3 Ngf6 Rg4 Rc8 h8B Ng8 h7 Nh6 Be5 f6 h8B Nf7 Bg7 Ke1 Bf8 f1N Bh6 Ne3 Rh4 Kf1 Rg4 Qh4 Bg5 Qg3 Bh4 Nd5+ Ke4 Qg1 Kd3 Qg2 Nh3 Qg1 Rd4 Qg5 Beg3 Re8 Rg4 Re4 Nf4 Rc4 Ne6 Nd8 Rd4 Nf7 Nf4
1q2Rb1Q/2B3pQ/2B2b2/N3q3/3qBR1P/n1k1rQBp/1rr1pK2/2Q1n3 b - - 0 1 illegal: No proof kernel
4b1k1/1QQ3p1/1q1n2rN/qr2r2Q/3b1pN1/3B2RR/5pPR/1nKR1q1Q b - - 0 1 legal: proof: b4 b5 c4 a5 a4 e5 f4 d5 cxd5 exf4 Ba3 Qg5 axb5 Qg6 b6 Qh6 b5 Qxh2 Bb4 axb4 e4 c5 d4 f5 Kd2 Kf7 d6 h5 d7 b3 d8R f3 d5 c4 e5 c3+ Kc1 f4 d6 c2 b7 f2 d7 b2+ Kd2 c1R b6 h4 Ra6 h3 Ne2 Rc5 Ng3 Rh6 Na3 b1Q Bd3 Rb5 Nf5 Nc6 b8R Nf6 b7 Nb4 e6+ Kg8 e7 Rg6 e8Q Na2 Nc2 Nc3 Ra3 Raa5 Nce3 Qb4 Qe5 Nb1+ Kc1 Ne8 Ng4 Bc5 Qde1 Qg1 Rh2 Bd4 Ra8 Qb3 b8Q Qf1 Qb7 Qe6 Ra6 Qb6 Qd1 Qe1 Qc5 Qb4 Qh1 Qa4 Qcc7 Re5 Rb3 Rab5 Rc3 Qb4 Raa3 Q4a5 Rab3 Kh7 Nfh6 Nd6 Qa6 Bb7 Ra3 Bd5 Qab7 Bf7 Rab3 Be8 Qc5 Re4 Qh5 Kh8 Bc2 Re2 Rg3 Ree5 Bd3 Kh7 Ra8 Kh8 d8Q Kh7 Qdc7 Kh8 Nf5+ Kg8 Nfh6+ Kf8 Qd1 Qc6+ Bc4 Be3+ Kb2 Qaa6 Rd8 Nf5 Rf3 Qcb6 Rh1 h2 Rh3 Qaa5 Rd5 Bc5 Kc1 Nd6 Rbg3 Be3+ Rd2 Bc5 Bd3 Bd4 Re1 h1Q Rf1 Qh2 Rh1 Qg1 R1h2 Qh1 Be2 Qe1 Bd3 Qe2 Qh1 Qe1+ Rd1 Qf1 Nf7 Kg8 Nfh6+
1R1QBb1K/3q1Ppp/2k1Nr2/4p3/2QR1rN1/1Q1n1R1b/Rrq5/1n1b1Q2 b - - 0 1 legal: proof: b4 c5 a4 b5 e4 d5 g4 f5 gxf5 Qc7 Ba3 Qxh2 axb5 dxe4 b6 Qh4 b5 Qh2 Bb4 cxb4 Ke2 Kd7 Ke3 e5 c4 a5 f4 a4 d4 b3 b7 a3 f6 a2 f7 b2 d5 Ra5 f5 Qh5 c5 Nh6 c6+ Kc7 b6+ Kd6 c7 Nc6 b8Q Ra7 f6 Kc5 d6 Qg6 b7 Qh5 d7 Ra8 d8Q Qg6 Nh3 Na5 Nc3 b1B Nb5 Ra6 Nd4 Nb3 Bb5 Nd2 Qf1 Bc2 Be8 Bd1 Nf2 Nb1 Rh4 Bh3 Ng4 Re6 c8Q+ Rc6 Kf2 e3+ Kg3 e2 Ne6+ Kb5 Kf3 Qc2 Qcc7 Qb3+ Ke4 Qc2+ Kd5 Rg8 Qf5 e1R Qf1+ Re2 Qcc8 Nf5 Qcc7 Nd4 Qcc8 Nb3 Qcc7 Bb4 f8R Nc1 Qf7 Nd3 Qbc7 Ka6 b8R Rc4 Qc5 Rf4 Qc3 Be7 Qb3 Bd6 Qfc7 Be7 Rf7 Rf8 Qcc4+ Ka7 Nc7 Ba3 Ke6 Bd6 Rd7 Bc5 Rd4 Rf7 Rh5 Bf8 Rf5 Ref2 Na8 Rb7 Nc7 Rb6+ Kf7 Re2 Rc8 Kb7 Kg8 Ref2 f7 Rb5 Qbc3 Rb2 Kh8 R2f3 Rh5 Rf6 Rf5 Rf4 Ne6 Qa4 Ra8 Qd7 Nc5+ Kc6 Q3b3 Nd2 Rb1 a1Q Ra7 Qa3 Ne6+ Qc5 Ra5 Rf3 Ra8 Rf4 Rba1 Nb1 R1a2 Re4 Rf3 Ref4 Qcb4 Qc1 Rb8 Qc2 Q4c4+
1B2n3/qNp1r1B1/b1N2N1K/Nn1BQ2p/1qB5/Pbk3b1/1R3p1Q/r3n3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 g6 a3 Ke7 h6 Bg4 h5 Bg7 h7 Bf8 h6 Bc8 Rh5 gxh5 Kf2 Ra4 Nh3 Qe8 Nc3 Nf6 Qb3 Ra7 Bg2 Kd8 Bb2 Ra4 Rh1 Nfd7 Qd1 Ke7 Bf1 Nf6 Ke1 Qd8 Bc1 Ke8 Ng1 Ra8 Nb1 Ng8 Kf2 Ke7 Kf3 Kd6 e4 Ke5 d6 Kd4 d7 f5 e5 b5 e6 b3 e7 b2 e8B b4 Bf7 b3 B1c4 Nc6 Bfd5 Bd6 Nh3 Nb4 Nf2 Ba6 Qe2 Qb8 d8N Nc2 Nb7 Nf6 Ne4 Rd8 h8B Qa7 h7 Rg8 d3 Rae8 Rh2 Rg1 Nbd2 b1Q Bg7 b2 h8Q Re7 Qg2 Be5 Qg3 Ne8 Nf6 Bd6 Nb3+ Kc3 d4 Be5 Be3 Ne1+ Ke2 Qe4 N3a5 b1N Rg2 Bd6 Qh2 f3+ Kf2 Bb4 Kg3 f4+ Kh4 f2 Kg5 f1B Kh6 f3 Rb2 Bd6 Bf2 Bg3 Be3 Nd6 Qe8 f2 Qb5 Ne8 Qc5 Nd2 Qd6 Nb1 Qe5 Qh4 Be2 Qb6 Bef3 Bfc4 Be6 Ng2 d5+ Kd3 Bg8 Nc3 Bf7 Nb5 Be6 Qd6 Ba7 Qd4 Bb8 Bb3 Be2+ Kc3 Bc4 Ra1 Bf7 Qb4 d6 Rb1 Bfd5 Ne1 d7 Qd6 d8N Ra1 Qe4 Qa7 Ndc6 Qb4 Qe5+
R1QbK1k1/qn6/1Pn3Q1/R2r1p1n/B1pn3r/Qr5N/B2p1B2/2b2Q1B b - - 0 1 legal: proof: d4 b5 h4 d5 c4 dxc4 a4 g5 axb5 gxh4 Nh3 e6 Ng1 e5 e4 Bc5 d5 Nd7 Nd2 Bd4 Ndf3 Bc5 Nd4 exd4 f3 Nb8 e5 Bf5 Bh6 Bc2 Bc1 Be4 fxe4 Bf8 Kd2 f5 g4 Kf7 b4 c5 e6+ Kg7 d6 h5 e7 a5 e8Q d3 Ke3 a4 Kf4 h3 Ke5 h4 Ke6 h2 e5 c3 b6 a3 g5 a2 b5 c2 b7 h3 g6 Ra3 d7 Qc7 d8Q Nd7 b8Q Rb3 b6 Qa7 Qdc8 Ne7 Qa8 Rh4 Bg2 Nc6 Qf1 Be7 Be3 c1B Bf2 Bd8 Kd6 d2 e6 Rd4+ Bd5 Rdd3 e7 Rd4 Ke6 Rdd3 Bg2 Rd5 Qf7+ Kh8 g7+ Kh7 Qg6+ Kg8 Rb1 a1N e8B Nc2 Ra1 Na5 Be4 Nb7 Ra5 Ne5 Ba4 Nc6 Bg2 Re5+ Kd7 Rd5+ Ke8 N2d4 Be4 c4 Bb1 Rd6 Ba2 Rd7 Qab8 Rd5 Qbd6 Rbb5 Qa3 Rb1 Nf3 Rb3 Rg1 h1N Ng5 h2 Nh3 Qa8 Rg4 Ng3 Re4 h1R Re5 Qb8 Ra8 Rd7 Rb5 Qa7 Ra5 Nh5 Qgg2 Kh7 g8B+ Kh8 Qg6 Rd5 Nf4 Rh4 Nh3 Rdb5 Bd5 Rc5 Bh1 Rd5 Qgd6 Kg8 Qg6+
2Rn2B1/QP1RrQBK/bRp5/1bb2B2/3r2R1/3Nkr2/n3pp2/1B1b1q2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 f4 gxh4 Na3 e5 Nc4 exf4 e4 Kd7 Ne3 fxe3 Qa4 Ke7 Qd1 Ke8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 g4 Kd4 b4 a5 g5 h5 g6 f5 b6 h3 d6 c6 b7 h4 b5 e2 d7 h2 b6 a4 g7 a3 e5 h3 e6 a2 e7 Ra3 Kg5 f4 Kg6 f3 e8B f2 Rb1 a1R Qb3 Na6 b8Q Bb4 Qf7 Rh4 Qa7 Nh6 g8B Rf3 Kh7 Bc5 Bb2+ Ke4 d4 Ke3 d5 Nb4 d6 Rd4 Bc3 Ba6 b7 Ra3 Bg2 Na2 Rb6 Qg5 Bf1 Qg2 d8R Rb3 d7 Rbb4 Qg6 Nf7 Rc8 Nd8 Qf7 Re4 Bg7 Rbd4 Qf6 Re7 Bg6 Rf5 Nf3 Qg1 Ne1 Rf3 Bg2 Qf1 Rg1 h1B Bb1 h2 Bh3 Bg2 Qf5 h1B Qf8 Bb5 Bg4 Bh3 B4e6 Bf5+ Rg6 Bg2 Qf7 Bc2 Nd3 Bd1 Bf5 Bh3 Rg1 Bg4 Rg2 Bh5 Rg4 Ba6 Qf6 Bf7 Qg6 Bfc4 Qf7 Ne6 d8R Bcb5 Rd6 Nd8 Rd7
4Q3/N1N2pP1/1RBK2n1/1b1Qrqp1/NQq2b1R/1N1Qp3/1kr1n2q/6q1 b - - 0 1 legal: proof: f4 b5 c4 g5 a4 gxf4 axb5 d5 cxd5 Bg7 e3 Bf8 g4 fxe3 b3 h6 g5 Bg7 g6 Be6 Bb2 Bf8 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 h4 c5 d6 e6 d5 e2 h5 e1Q+ Ne2 a4 d7 c4 g7 c3 d6 c2 b6 c1Q b7 a3 h6 a2 h7 Qc4 Bg2 Ra5+ Qd5 Qcc1 Nd2 Ka3 b4 Rb5 Nb3 Qg1 Rb1 a1Q+ Nc3 Qab2 Rh4 Qa5 d8Q Ne7 d7 Nbc6+ Kd6 e5 b8N e4 Na6 e3 Na4 Nd4 Nc7 Ba6 Be4 Rc5 b5 Rc2 b6 Ne2 b7 Bb5 b8Q Rg8 h8Q Ng6+ Qe7 Qcf1 d8N Qf5 Qh7 Qac3 Nc6 Qc4 Na7 Rh8 Qe6 Ka2 Bc6 Qbe5+ Kd7 Qeh2 Qb4 Bd6 Qbg8 Bf4 Qe8 Ne5+ Kd6 Rg8 Qd5 Ng6+ Qee5 Rf8 Qg8 Re8 Qd3 Re7 Qe8 Bg3 Qf4 Re5 Qfd4 Bf4 Qd5 Rb2 Qe1 Rc2 Na5 Ba6 Rb6 Bb5 Qb4 Ka1 Nb3+ Kb1 Nac5 Kb2 Na4+
b1q1qNQN/3nB1N1/2Q3qQ/1p4pN/1b2r2p/r1B4P/1rb5/2KR1Qk1 b - - 0 1 illegal: No possible last move, all moves rejected
n3BQr1/1RB1P3/pR2k3/q3B3/3R2R1/1nQ2Nnr/2ppq2n/2bB1nK1 b - - 0 1 legal: proof: d4 b5 h4 d5 c4 dxc4 a4 g5 axb5 gxh4 Nh3 e6 Ng1 e5 e4 Bc5 d5 Nd7 Nd2 Bd4 Ndf3 Bc5 Nd4 exd4 f3 Nb8 e5 Bf5 Bh6 Bc2 Bc1 Be4 fxe4 Bf8 Kf2 Ke7 g4 h5 b4 f5 d6+ Ke6 d7 c5 g5 c3 b6 c2 b7 h3 b5 a6 b6 h2 g6 h4 g7 d3 Bf4 c1N Qc2 c4 Qe2 h3 Qb2 c3 Nf3 d2 Rb1 c2 Rg1 h1Q Qc3 h2 Rg4 Rh3 Be2 Nf6 Bd1 Nb3 g8R Qe7 d8B Nbd7 b8R Qe1+ Kg2 h1N b7 Qa3 Bc7 Qe2+ Kg1 Qa5 Rh4 Bd6 Rgg4 Ba3 Bh2 f4 Bg3 Ke7 e6 Nb6 e5 Bc1 Bh2 Na1 Rb4 Nb3 Rh6 Ng3 Rd8 Ne8 b8Q Nf6 Qc8 Rb8 Rdd4 Na8 Qh8 Rg8 Rb7 Nfh5 Rf6 Nf1 Bg3 Nh2 Rh6 Ke8 e7 Kf7 e8B+ Ke7 Ne1 f3 e6 Ng7 Bge5 f2+ Kh1 f1N Nf3 Nh5 Kg1 Nhg3 Rhg6 Rg7 Qh6 Kf8 e7+ Kg8 Ba4 Kf7 Rgb6 Rg6 Bc6 Rg8 Qf8+ Ke6 Be8+
Q2q2b1/b1Np4/1k5Q/R2N1Qpp/P1Q2rNr/6r1/3qr1nB/K1R1q2N b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 b5 c5 Bg2 a6 Be4 axb5 Bd3 c4 h3 cxd3 gxf5 g5 h4 b4 h5 Nc6 Rh3 Nce7 Rh1 Ng6 hxg6 Ra7 Be3 Ra3 Bc1 Ra8 Kd2 b5 f4 h5 e4 b3 c4 b2 g7 b4 f6 b3 f5 Bb7 c5 Qc8 f7+ Kd8 e5 Kc7 e6 Bf3 f6 Qa6 c6 Qa7 e7 Qb6 Qe2 Be4 Nf3 Bh7 Ne5 Nh6 g8N Ra3 Nc3 b1R Ng4 b2 Nd1 Nf5 Ndf2 Nh4 Re1 Qb8 e8N+ Kb6 c7 Ng2 c8Q Bc5 f8Q Qa8 Kd1 d2 f7 Rg3 Ng8f6 Bg8 Kc2 d1R Qc4 d3+ Kb3 Qa5 Bf4 Rd2 Nc7 Re2 Qh6 d2+ Kc2 Rh7 f8Q Rf7 Nh1 Qa8 Qce8 Qd8 Rc1 Be3 Qee4 d1Q+ Kc3 Qd5 Qf5 Qd1 Qa3 Qd2+ Kb3 Rf8 Qa8 Rf7 a3 Bg1+ Ka2 Bc5 Rc3 Rf1 Be5 Rf4 a4 Re7 Rac1 Re6 Bd6 R6e4 Rd3 Bg1 Rd5 Bd4 Ne5 Rh4 Neg4 Rf4 Re5 Bc3 Ra5 b1Q+ Ka3 Qe4 Kb3 Bb2+ Ka2 Ba3+ Ka1 Bc5 Be5 Qee3 Bd4 Qf2 Be3 Qf1 Bg1 Qfe1 Bh2 Bd6 Ne6 Bb8 Nc7 Ba7 Nfd5+
2b1n2k/2Q1R2b/Qn2p2r/1r3brB/B5p1/2K2nBN/2Bp2P1/N1N2nN1 b - - 0 1 legal: proof: h4 a5 d4 c5 b4 cxd4 e3 axb4 Ba3 g5 Bb2 g4 Bc1 d3 Kd2 Qa5 Ke1 d2+ Ke2 Qg5 hxg5 Ra5 Kd3 Ra7 Ke2 Ra8 a3 d5 Rh2 d4 Rh1 Bg7 Kd3 Bf6 Ke4 d3 Kf4 Bd4 exd4 f6 Ke3 f5 a4 Ra6 Ra3 Ra7 Rc3 Ra8 Rc5 Na6 Re5 Nb8 Re4 fxe4 c4 Kf8 f4 Kg7 a5 h5 a6 b5 a7 b3 g6 b2 c5 h4 f5 h3 f6+ Kf8 c6 e6 c7 h2 g7+ Kf7 d5 b4 Kd4 b3 d6 e3 d7 e2 d8N+ Kg6 f7 Kh7 f8N+ Kh6 Na3 e1R Nd7 Kh7 Nc2 b1B Nc5 b2 Na1 Re3 Nf7 Re5 Qc2 d1B Kc3 Rg5 Bf4 Nd7 Bg3 Nb6 Ncb3 Rb8 a8B Nf6 Nc1 Ne8 g8B+ Kg7 Qe2 Rh6 Bc6 Bdc2 Ba4 Rb7 Bh7 Rb8 Bg6 Rb7 Ne5 Kh8 Nef3 Rb8 Nh3 Rb7 Rg1 h1N Bh5 Rb8 Bf2 Ng3 Rh1 Rb7 Nfg1 Rb8 Qe4 Rb7 Qc6 Rb8 Be2 Nf1 Rh2 d2 Qc4 Bh7 Qa6 Bbf5 Bg3 Rb7 Bd3 b1N+ Kb3 Rb8 Bc2 Na3 Kc3 Nac4 Rh1 Ne5 Rh2 Bb7 c8Q Nf3 Qc7 Bc8 Nf2 Ra8 Bg6 Rhh5 Qd3 Ra5 Qa6 Rb5 Rh4 Bg8 Nfh3 Rh7 Rh6 Na8 Bh5 Nb6 Rg6 Rh6 Rg7 Bgh7 Re7
3Qr3/n1p1B2B/qQrq4/QprRB3/RnB4Q/1qN1p1q1/1Pk1K3/1n6 b - - 0 1 legal: proof: g4 d5 e4 b5 f4 f5 c4 dxc4 a4 g6 h3 Bg7 a5 Bd4 Nc3 Bb6 axb6 Bb7 Nce2 fxe4 f5 g5 Nf4 gxf4 g5 Bd5 Be2 Bf7 Bd3 Bh5 Bf1 Bg4 hxg4 Qd7 Ra6 Qd3 Ra1 Qd8 d4 Kd7 f6 Kc6 f7 Kd5 f8B a5 g6 e5 b7 h5 g5 a4 g7 h4 g6 f3 Kf2 a3 Bg2 a2 Ke3 h3 Kd2 f2 Qh5 f1N+ Kd1 h2 Qe2 c3 Qd2 Kc4 d5 Kb3 d6 e3 d7 c2+ Ke2 e4 Bd6 Rh6 Bg3 Na6 b8Q Nb4 Bh4 Ne7 Qb7 Nec6 Be7 Na7 Qb6 Rc8 Qdd4 Nd2 Bf1 Nb1 Qa5 Qf8 Qdb6 Re8 d8Q Qf7 Bd2 c1R g8B Kc2 g7 Rc6 Bh7 Qb3 g8Q Rc5 Qg5 Rc6 Nf3 Rc5 Rg1 h1Q Bc3 Qh6 Be5 Qd6 Qh4 Rc6 Ng5 Rc5 Bg2 Rc6 Rd1 Rc5 Ke1 e2 Bf1 Rc6 Kf2 Rc5 Rd3 e3+ Kf3 e1Q Ne4 Qg3+ Ke2 Rd1 Rd5 Rd3 Bh3 Rdc3 Be6 Rc6 Rd4 R3c5 Bc4 Na3 Rad1 a1Q Rd5 Nb1 R1d4 Qaa2 Nc3+ Nd3 Qb4 Qa5 Re4 Qa6 Q4a5 Nb4 Red4+ Nd3 Rg4 Qa4 Ba2 Qa3 Ra4 Qb4 Bc4 Qb3 Bg8 Nb4 Bh7+
2B2N1k/4pr1R/QN3P2/3Nq3/1bp1Qbrp/N3BKn1/1B2r1np/1Bb5 b - - 0 1 legal: proof: g4 d5 c4 dxc4 e4 b5 h4 g5 a4 f5 axb5 fxe4 b4 Nf6 h5 Nc6 Rh4 gxh4 g5 Bh3 g6 Bf5 g7 Bg6 hxg6 Ng8 Ra3 Ne5 Rh3 Nc6 Rh1 Nb8 Ke2 a5 f4 c5 d4 h5 d5 h3 f5 h4 b6 a4 b5 c3 f6 h2 d6 c2 b7 e3 b6 c4 Na3 Rh7 Qd5 Qc7 d7+ Kd8 Bh3 Na6 b8N Nb4 b7 Nd3 Bb2 c1B Kf3 e2 Qe4 e1B Ne2 Bb4 Nf4 Nh6 g8B Nf5 g7 Qe5 Nd5 Ng3 Rg1 Nf4 Bge6 Ra5 g8Q Ng2 Bef5 Rf7 Qgg4 Ra8 Bg6 Ra7 Qe6 Bfh6 Qa6 Bhf4 Qe3 Rf8 Bb1 Rf7 Qe4 Ra8 Nc2 a3 Bf5 a2 Na3 a1R Be6 Ne3 Bh3 Ngf5 Rg7 Ra7 Nb6 Ng3 Nc6+ Kc7 b8N Kd6 d8B Ng2 N8d7 Rb7 Kg4 Ke6 Bc7 Rb8 Bd6 Rbf8 Bc5 Rg8 Be3 Ra2 Kf3+ Nf5 Rh7 Rg4 Rg7 Ng3 Nf8+ Kd6 Bbd4 Re2 Bb2 Rg6 Bc8 Rg4 Nfd7 Ke6 Rg8 Rh7 Nf8+ Kf7 Rg5 Rg7 Rg6 Kg8 Rg5 Bc3 Nb4 Kh8 N4d5 Rf7 Rg7 Bb4 Rh7+
r1rQ4/qpp2K2/bn1P2Qp/1N6/NR6/R1p2b2/2R1nkNN/q1q2BR1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 b4 dxc4 f6 axb4 h4 Na6 g4 Nc5 f5 Ra4 Bb2 Ra3 Be5 Bh6 Bf4 gxf4 g5 Na6 g6 Bg5 hxg5 Nb8 Kf2 Ra4 Ke1 Ra8 Kf2 Kd7 Kf3 Kc6 Kg4 Kc5 Kh5 Kd4 a4 e5 f7 e4 f8N b3 a5 c3 a6 e3 a7 e2 g7 e1Q g6 f3 f6 h6 f7 f2 Rh2 b2 Nf3+ Ke4 d4 Ke3 d5 Bf5 Ra3 Nc6 Ne6 Ne5 f8R Rh7 Nf4 Ne7 g8Q Nc4 g7 Rc8 a8N Rh8 Nb6 Be4 Na4 Nf5 Kg6 Ng3+ Kf7 Nb6 d6 Ne2 Qc2 Bc6 Qg6 Qc1 Rh4 Ra8 Nh2 Qb8 Rg4 Bh1 Rg1 Bf3 Ng2+ Kd4 Re8 Qa7 Re4+ Kd3 Qd8 Re8 Nd2 b1Q g8R Qa1 Nb3 Rc8 Nd4 Kd2 Nf4 Ke1 Nb5 Ra8 Rb4 Rc8 Bh3+ f1B Ng2+ Kf2 Rg7 Rh8 Rg8 Ng3 Re8 Bd3 Ree1 Ne2 Rd1 Ra8 Rd2 Re8 Rc2 Rc8 Nd4 Ba6 Nb5 Ra8 Ne3 Rg8 Bf1 Rc8 Ng2 Ra8 Qdg5 Rgc8 Qd8
8/2pb2Kn/1Q1Brpp1/R2nQ1pr/8/1P1R1r1Q/1Q1N1NRR/b1kq3r b - - 0 1 legal: proof: f4 b5 g4 d5 a4 h6 axb5 d4 g5 hxg5 f5 d3 Bh3 e6 Bg4 exf5 cxd3 fxg4 d4 Be6 d5 Bc8 Kf2 Ke7 Kg3 Kd6 d4 a5 e4 f6 h4 a4 h5 a3 e5+ Ke7 b6 a2 b3 Rh7 e6 Kd6 e7 Rh8 e8Q Ne7 h6 Qd7 b7 Nec6 h7 Qd8 Nd2 Qd7 Ba3+ Nb4 Qc2 Ra6 Qb2 Qd8 Rh2 Nd7 b8Q g6 Nh3 Be7 Nf2 Nf8 Rg1 a1R Rgg2 Rb6 Qb5 Rc6 Q8b6 Bd7 Qe2 Rf1 Qe4 Rg8 h8Q Rh1 Qh4 Rh8 Qh3 Rh5 Qe3 Nh7 Qe1 Bf8 Qea1 Ke7 d6+ Ke6 d5+ Kf5 Qe1 Rc4 Qee3 Re4 Qec3 Re6 Qce3 Be8 d7 Bc5 d6 Nd5 Qe1 Bd4 Bb4 Qa8 d8R Qa1 d7 Qd1 Ra8 Bc3 d8R Bd7 Ra5 Bd4 Rg1 Be5+ Kg2 Kf4 Bd6 g3 Kf1 Qb1 Ke2 Qd1+ Kd3 g2 Kc4 Bc8 Rf1 g1R Qe2 Rg3 Rg1 Rf3 Rgg2 Bd7 Kc5 Ba4 Qeb5 Ke3 Kc6+ Bd4 Kd7 Ne7 Ke8 Nd5+ Kf7 Rh4 Qb1 Rh5 Q5c5 Bd7 Kg7 Ke2 Qbc2 Ba1 Qb2 Qe1 Nfe4+ Kd1 Qcd4 Qe2 Qe5 Qe1 Qa2 Qg1 Nf2+ Kc1 Raa8 Nc3 Bc5 Bc6 Rd3 Nd5 Ra5 Qd1 Bd6 Bd7 Qab2+
5nn1/2k3pr/3R2Bq/p3pBr1/K5pq/1R1Q1N2/1PBBRb2/Q3R1qn b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 h5 axb5 hxg4 Bh3 c6 Bf1 c5 c4 Nc6 d5 Rh7 Na3 Bb7 Nc2 Nb8 Nd4 cxd4 c5 Rh8 c6 Rh7 c7 Bc6 dxc6 Rh8 Kd2 d5 Kc2 e5 Kb3 a5 c8B e3 f4 e2 h4 e1Q f5 d3 f6 d2 b6 d4 h5 d3 h6 Qe3 b7 Qg3 h7 Qe1 f7+ Ke7 c7 Kd6 Ka4 Nd7 b8R Ndf6 Bf5 Qe3 c8B Qh6 Nf3 Ra6 Bg6 Kc7 Rh2 Bc5 f8R Nd7 Rb3 Qdh4 Re2 Bf2 Rf6 Nf8 Bcf5 Rb6 Qe1 d1Q Rd6 d2 Bg2 Ra6 Qh1 Qg1 Rb1 d1N Bd2 Ne3 Rbe1 Nf1 Qh3 Ng3 Qh1 Ne7 Qh3 Nh1 Qg3 Rg8 h8Q Rc6 Qh7 Rh8 Qf4 Ra6 Qb4 Ng8 Qa3 Rb6 Qa1 Ra6 Ng5 Rc6 Bge4 Rb6 Bc2 Rc6 Bf7 Ra6 Qg6 Rh7 Nf3 Rc6 Bd7 Rb6 Qd3 Ra6 Bf5 Rc6 Rd5 Rg6 Rd6 Rg5 B7g6
Q1n1BKN1/b1B5/RrQp4/R1RR1nk1/1p2qnPp/2rrn3/3p1Q2/2Q5 b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 f6 exf6 axb4 g4 b6 f5 Ra5 Nc3 Rc5 Nce2 Ba6 Nf4 gxf4 h3 Be2 g5 Bg4 hxg4 Ra5 Ba6 Ra4 Bf1 Ra8 Kf2 Kf7 Kf3 e5 Ke4 h5 Kd5 f3 a4 b5 c4 f2 c5 b3 g6+ Ke8 a5 h4 f7+ Ke7 a6 Kf6 g7 e4 a7 d3 c6 b4 c7 e3 c8R d2 Nf3 b2 Ra5 b1N Rcc5 Qe8 Ng5 Bd6 Bb5 Nh6 g8R f1N Bb2+ Be5 Qc1 Bd4 Kd6 Qe4 Rd8 e2 Rh3 e1R Rha3 Rh7 f8Q+ Rf7 Ba4 Nc3 Qe8 Ne3 Ra1 Rg7 Nf7 Nc6 Ra3 Rb8 a8Q Ne7 Bc6 Nhg8 Nh6 Kg5 f6+ Ncd5 f7 Rb6 f8Q Rh1 Ra6 Rh3 Qf2 Rf7 R3a5 Rff3 Nf5 Nf4 Nh6+ N3d5 Ba1 Rc3 Bb2 Rhd3 Ba1 Nf6 Ng8 N6h5 Bb2 Ng7 Ba1 Ra3 Bc3 Be3 Be5 Rac3 Qf7 Bd4 Qe6 Ne3 Qd5 Rb7 Ba4 Rb6+ Qdc6 Nd1 Bb3 Ne3 Bf7 Rb3 Be8 Ra3 Rc8 Rac3 Rd5 Ngf5+ Kc7 Neg2 Kd8 Nge3 Bc7 d6 Bf7 Qg2 Ke8 Qe4 Kf8 Bc5 Be8 Bd4 Rd8 Nc8 Rd7 Rb7 Re7 Ba7 Ree5 Rb8 Rdc5 Rb6 Red5
4Q2B/P3NQnk/b4N2/p4Nbn/K1brpNR1/p1qRRp2/3q2b1/2R5 b - - 0 1 illegal: No proof kernel
q2b4/pR2R2p/1q1B1Qp1/1R3nP1/Kn1bpr2/1nR4B/2N2Q1n/B1kB4 b - - 0 1 legal: proof: d4 b5 a4 bxa4 h4 f5 d5 g6 h5 Na6 d6 Rb8 h6 Rb6 Nc3 cxd6 Nb1 d5 Bg5 d4 Bd2 Nb8 Bc1 Na6 e4 d5 Qe2 d3 Nc3 d4 Bg5 Be6 Bc1 Rb8 Qd1 Bd5 exd5 Rc8 Ne4 fxe4 Ne2 Rc6 Ng1 Rf6 Ra3 Rf7 Ra1 Rg7 hxg7 Qa5+ Qd2 Qc7 Qd1 Qd8 Kd2 Kf7 b4 Kf6 g4 Kg5 c4 Kf4 c5 e5 d6 a3 b5 a2 g5 Qb6 c6 Qc7 b6 Qe7 c7 Nf6 c8R Ng8 d7 Qe6 d8Q Ne7 g8B Nb4 b7 Qb6 b8R Nf5 Nf3 Bc5 Rb1 a1N Bb3 Rf8 Bb2 e3+ Kc1 e2 Qe1 Rf6 Rb7 e4 Re7 Rf7 Bd1 Rf8 Bc3 d2+ Kb2 d3 Ka3 Bd4 Bh3 Nb3 Ba1 Rf6 Qf1 e1B Rc3 Rf8 Ka4 Rf7 Bc2 d1Q Qh8 d2 Qf6 Qc1 Bd1 Qb2 Rg1 Qb8 Rg3 Qa8 Rcc7 Rf8 Rb7 Rf7 Nh2 Rf8 Rc3 Rf7 Nf3 Rf8 Bc2 d1N Rb5 Bd2 Ne1 Ne3 Bd1 Ng4 Nc2 Nh2 f3 B2e3 Qf2 Bb6 Qd2 Bd8 Qdd4 Kg3 f4 Kf2 Qc5 Bd4 Qcb6 Nh6 f5 Rf7 Qfd6 Rf8 f6 Nf5 f7 Nd2 Ne3 Ke1 Qf6 Nb3 Nc2+ Kd2 Qc5 Qc1 Rb2 Qb1 Rbb7 Kc1 Rb5 Rg8 f8B Rg7 Rbb7 Rf7 Qcb6 Nh6 Qf2 Rf4 Qf6 Nf5 Red7 B8b6 Bd6 Bd8 Re7 Na2 Ka3 Nd2 R2b6 Qb5 Qf8 Nb3 Qf6 Qc5+ Ka4 Nb4 Rb5 Qc6 Bc5 Qb6 Bd6
6b1/3p1RQ1/5B1n/1p2Q2K/nQ1pN1rQ/2Rn2bk/R1Pp4/bNRrn3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 e4 axb4 g4 h5 gxh5 e6 e5 Qe7 Bg2 d3 Bd5 exd5 f5 Qe6 fxe6 d4 Kf2 Ke7 Kg3 b5 Kg4 f5+ Kg5 f4 h4 b3 a4 b2 a5 f3 h6 d2 a6 f2 a7 f1N h7 Nh6 h5 Nh2 Ra3 Rg8 h8Q Bb7 Nf3 Bd5 Rc3 Na6 Qg1 Nb4 Qg3 Re8 a8R Nd3 Ra2 g6 Kh4 Rg7 Ng5 Nf3+ Kh3 Bc4 Ne4 g5 Rf1 Nfe1 Rf7+ Kd8 Qf4 g4+ Kh4 Bb4 Qf8 g3 e7+ Kc7 Qf6 g2 e6 g1B Qg5 Rg6 Qg7 Bh2 Qf8 Ra8 e8R Be5 e7 Bg3+ Kh3 Ra5 Ra8 Raa6 e8Q Raf6 Ra1 Rf1 R8a2 Rg7 Qee5+ Kc6 Qh4 Rg4 Qhg5 Ba3 Qb4 Rg1 Nc5 Bd5 Qeg7 Kd6 Ne4+ Ke6 Rc8 Ng8 h6 Rf1 h7 Nh6 h8Q Bc4 Nbc3 b1N Rc5 Bb2 Rc7 Na3 Nb1 Bb3 Rc5 Nc4 Qb8 Bc3 Ba3 Nb6 Qc7 Bb2 Rc3 Bc4 Qb3 Na4 Be7 Rg1 Bf6 Rf1 Qb4 Bb3 Qh4 Kf5 Qcc5+ Kf4 Qe5+ Kf3 Qhg5 Bc4 Rf8 Bg8 Rf7 Rg1 Na3 Rf1 Rc1 Ba1 Nb1 Ng2 Qb8 Rd1 Qbe5 Ne1 Qa3 Bf4 Qac5 Rg3+ Kh4 Kg2 Qa3 Rg4+ Kh5 Bg3 Qb4 Kh3 Qh4+
3n2K1/2NQb1p1/2Rq2p1/1B3b2/3rr1QN/1nN1P1pN/Q3p1p1/2QB2nk b - - 0 1 illegal: Other
4qr2/5pqN/4kn1R/q3b1Q1/pp1Q1N2/p3N2K/1Pb1R2p/RRN1rB2 b - - 0 1 legal: proof: h4 e5 f4 exf4 c4 b5 a4 g5 hxg5 c6 d4 Na6 Bd2 Nb8 d5 c5 Bb4 cxb4 c5 Nc6 dxc6 bxa4 Kf2 Ke7 e4 d5 g4 h5 Kg2 a5 e5 a3 g6 a4 g5 h4 g7 d4 g6 d3 e6 f3+ Kh3 d2 c7 f2 c6 Rh7 Ne2 Qd4 Nf4 Bb7 c8R Ra5 c7 Qd7 Nc3 Be4 Na2 Bc2 Nc1 Nf6 g8Q Qe8 g7 Ra8 Rd8 Rh5 Rd6 Re5 Rb6 Re1 c8N+ Kd8 e7+ Kd7 Nd6 Rb8 Qf3 d1Q Nf5 Qd5 Qc3 Qa5 Ne3 Rc8 Qc5 Rb8 Qh8 Rc8 g8N Bg7 Qg5 Ra8 Bg2 f1Q Rc6 Qg1 Bf1 Nd5 Rb1 Be5 Rh6 Rb8 Nf6+ Kd6 Nh7+ Nf6 Qh5 Qg7 Qg5 Kd7 Kh2 h3 Ra1 Qc8 e8R Qc6 Kg3 h2 Kh3 Qe4 Qf8 Rc8 Qc5 Qea8 Re6 Rf8 Rb1 Qe8 Qd4+ Bd6 Ned5 Bc7 Re2 Be5 Ne3+ Bd6 Ra1 Ke7 Na2 Be5 Bg2 Rc1 Rd1 Rb1 Bf1 Rc1 Rdd2 Re1 Rdd1 Bg6 Rdb1 Bc2 Qe4 Kd7 Nc1 Kd6 Qd4+ Ke7 Nfg2 Ke6 Nf4+
1bn1N2B/6Nb/2n1p3/2q2nrq/1Q1q2qB/KQQR4/bQ2P1kr/1B2rB2 b - - 0 1 illegal: No possible last move
R3rnr1/2Br4/qp2Q2b/2R1r2k/QK1Bnr2/1Pr5/Brb1R2R/NqB5 b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 b3 a3 Nc3 e6 Na4 exf5 Nb2 axb2 Rh2 f4 Rh3 Bd7 Rh1 Bc8 e4 b1R a4 h5 d4 c5 Kd2 f5 Kc3 Kf7 g4 Kg6 d6 h3 e5 c4 g5 b6 d5 h4 d7 f3 d6 h2 a5 h3 a6 f4 e6 f2 a7 f3 e7 Nf6 e8R Bh6 Re1 Ne4+ Kb4 c3 Ba6 f1R Qd4 f2 Bb5 c2 Re2 Rd1 Bd3 f1R Ra5 Re8 Nf3 Rb2 Rc5 Kh5 Ne1 Rf4 g6+ Qg5 d8B Nd7 g7 Nf8 g8Q Bf5 d7 Qg1 Qh7 Qf1 Bf6 Re5 Qd5 Rae8 a8R Rd2 d8B Rd1 Rg1 h1R Bc7 h2 Rgg2 Rg1 Qhd7 h1Q Qa4 Bh7 Rgf2 Rg8 Qe6 Bf5 Bc4 Rd7 Bd3 Red5 Bd4 Re5 Bd2 c1R Nc2 Qhg1 Na1 Rc3 Bb1 Qh1 Ba2 Qb1 Re3 Qhf1 Bc1 Qa6 Rd2 Ng5 Rf2 Bc2 Ree2 Ne4 Rh2+
2n1nR2/1N1bR1q1/NQB2nr1/R2r1p2/2nb1Pk1/N5b1/R2Q1b2/1KN1n2b b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 Bd2 e3 Bg2 exd2+ Kf1 c6 Bh3 cxd5 Kg2 d4 Kg3 Ba6 Bf1 Bc8 Kg2 Rh5 Na3 Rh6 Nb1 Rh8 b4 Ke7 e4 Kf6 h4 a5 c4 g5 f3 d5 Kf2 g3+ Ke2 g4 Kd3 g2 Kc2 a4 b6 a3 c5 a2 e5+ Kf5 b5 g3 h5 d3+ Kb2 d4 h6 Qc7 h7 Nc6 e6 Bd7 e7 Na7 e8Q Nf6 b7 Rd8 b8R Rg8 h8N Nc8 c6 Bd6 b6 Rg6 Qe3 Ne8 Qb3 d1B b7 d2 Bc4 d3 Ne2 g1N Qa7 g2 Qf2 Bg3 f4 Nf3 Rh7 g1B Bd5 Ne1 Ra8 Kg4 b8N f5 Nc1 Bf3 Qbb6 Bh1 Re7 Qa7 Qfd4 B1f2 c7 Qb7 Nf7 d1N+ Ka3 d2 Na6 Nc3 Kb2 Ne4 Na3 Qa7 Nd6 N4f6 Bc6 Qb7 Qc3 Qa7 Nb7 d1N+ Kb3 Ne3 Qd2 Nc4 Kc3 Be6 Kb3 Rd5 Kc3 Nc8d6 c8R Bd7 Rd8 Nc8 Kb3 Ned6 Rf8 Nde8 Nd8 Ng2 Kc2 Qc7 Nb7 Qe5 Rb1 a1B Rb2 Ne1+ Kb1 Qc7 Ra2 Bad4 Nb4 Qe5 Ra5 Qc7 Re3 Qe5 Na6 Qe7 Re4 Qg7 Re7
2q3n1/1kBb2qB/1B2Br1b/2Q4b/2Nnpr2/1QN3NK/2b1PRNb/5q1b b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 d4 cxd4 g4 h6 f4 gxf4 g5 h5 Ra3 Nf6 Rg3 Ng8 Rg4 hxg4 Kf2 d5 Kg2 Kd7 c4 Kc7 h4 a5 g6 e5 b6+ Kb7 c5 f5 b5 d3 h5 e4 h6 d2 h7 d4 g7 f3+ Kh2 f4 Qa4 d1B Qb4 a4 Qb3 a3 Nc3 d3 Nh3 d2 Nf2 a2 Bh3 a1Q Rf1 Bd7 Nh1 f2 Ng3 f3 Qc2 Ra6 c6+ Kc8 c7 Kb7 c8N Nc6 Ba3 Nd4 Bc5 Qe8 Qb3 Bc2 Qc4 d1B Nd6+ Ka8 Qb3 Qc8 Nc4 Kb7 Qa3 Be8 Qc1 Bh5 Qe3 Nf6 g8B Bh6 Be6 Re8 h8N Ng8 Ng6 Rf8 Nh4 Rf4 Ng2 Ba4 Bf5 Bdc2 Bh7 Qb2 Rd1 f1B Rc1 Kb8 b7 Raf6 Bb6 f2 Rb1 Qa3 Re1 Qaf8 Rd1 Qg7 Rd3 Nc6 Qc5 Nd4 Rf3 R4f5 Ne1 Bg2 Rf4 f1Q Rf2 Bh1 Ng2 Nc6 Ba7+ Kc7 b8B+ Kb7 b6 Nd4 Bd6 Bd7 Bc7 Ka6 b7 Rf4 b8Q Qf7 Qb3 Qg7 Bcb6 Kb7 Nf5 Qcf8 Kg3 Qc8 Kh4 g3+ Bg4 Bb1 Bb8 Bd3 B8c7 Bc2 Ne1 g2 Kh3 g1B+ Ng2 Bh2 Ng3 Nb5 Bgf5 Nd4 Be6
1N4q1/5p1N/R1nQ1P1b/Q1n3rR/5b2/3rB1kb/n4NRq/1n1NbKRq b - - 0 1 illegal: No possible last move
5r1q/Q1p2rQQ/qb3Nb1/b2Brk1q/RQ1r3N/2N1nnqR/2P2N2/7K b - - 0 1 legal: proof: e4 b5 g4 f5 a4 fxg4 axb5 h5 b3 d5 Ba3 dxe4 Bd6 h4 Bg3 hxg3 h4 Kf7 d4 Kf6 f4 g5 d5 a5 b4 e5 h5 a4 b6 a3 h6 a2 b7 g2 Kf2 g3+ Ke3 g4 d6 Nc6 b8Q Rh7 d7 Rf7 h7 Nh6 h8Q+ Kf5 b5 Bb4 b6 Ba5 b7 Nd4 Qa7 Nf3 Ke2 e3 b8Q e4 Qc3 Qh8 Nh3 g1Q d8N g2 Qcb4 g3 Nf2 Qh2 Qdd4 g1R Nc3 g2 Qg7 Ng4 Ne6 Q2h5 Rh3 Bb7 Qbg8 Raf8 Nb1 Rh1 Nc3 g1B Bg2 Bc6 Kf1 Be8 Nc5 Rh2 Ncd3 Rh1 Ne1 Rh2 Rd1 a1Q Rd4 Qa2 Bh1 Qe6 Rc4 Qc8 Ng2 Qa6 Rg3 Rh4 Rh3 Rd7 Q8h7+ Bg6 Ne1 e2+ Kg2 e3 Rd4 Rdf7 Rc4 Ke6 f5+ Kd7 f6 Ke6 Re4+ Kf5 Rc4 Re7 f7 Rd7 Ned3 e1R Nf4 e2 Rd4 Re7 Rc4 Rf1 Re4 e1Q Rd4 Rg8 f8N Re5 Nd7 Rf8 Nf6 Rf7 Rd1 Rf8 Ra1 Rf7 Ra4 Rf8 N2e4 Bgb6 Nf2 Rf7 Kg3 Ne3 Ng2 Ng1 Kh2 Rd4 Nf4 Rf8 Bd5 Rf7 Kh1 Rf8 N2d3 Qg3 Ng2 Rff4 Nf2 Nf3 Bb3 Rd7 Bc4 Rdf7 Bd5 Rd4 Nh4+
2k1K3/3RnNNb/b3RR1n/p4Qb1/PN1R1BbQ/3pnr2/5rq1/N1bq4 b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 g6 f3 Bg2 fxg2 Bd2 hxg6 Be3 g5 Bc1 g4 Kd2 g5 Kd3 a5 Ke4 d5+ Ke5 Kd7 e4 b5 h4 b4 c4 d3 a4 d4 f4 g3 f5 b3 f6 d2 c6+ Kc7 c5 b2 h5 d3 f7 g4 h6 Qh4 h7 Qd8 Ne2 g1B Nec3 g2 Na3 b1B Qe1 d1B Na2 g3 Nb4 Ra6 Rh4 Bh6 f8R Ba2 Nac2 Bg5 Bf4 Be3 Rf6 g1Q Rc1 g2 Na1 Bf7 Rc4 Qd7 Rd4 Qh3 Rhh6 Bg6 Qh4 Bdg4 Kd5+ Kd8 Kd6 Qd1 e5 g1N e6 B6f5 Rhg6 Qg2 Rh6 Bb7 e7+ Kc8 e8N Nf3 Ng7 Ne5 Rhg6 Nh6 Ke7 Bd2 c7 Rf8 h8N Nc4 Nf7 Ne3 Rd7 Rc6 Rd4 Ba6 Rd7 Kb7 c8R+ Rc7 Rd8 Bc1 Nh8 Rf7+ Ke8 Nc6 Re6 Be4 Rgf6 Bh7 Rd4 Ne7 R8d7 Kc8 c6 Rb7 c7 Rb5 Rg6 Rff5 Nf7 Rbc5 Rgf6 Rc2 Be5 Rf3 Bf4 Kb7 R7d5 Rcf2 c8Q+ Ka7 Qc5+ Kb7 Qb5+ Kc8 Rd7 N3f5 Qd5 Ne3 Qf5
2R4N/Q3npBn/1Rr2b2/K6n/RnQ1R3/1p1r2N1/1N2qP1r/qbn2kN1 b - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b5 Nh6 b7 Ng8 b6 Qd3 Be2 Qd8 Bb5 cxb5 g4 Kd7 c4 Kc6 d4 e5 Kd2 h5 Kc3 a5 c5 Kd5 g5 b4+ Kb3 a4+ Kc2 Kc4 g6 e3 c6 e4 c7 h3 g7 b3+ Kb2 h2 d5 h4 d6 h3 Ka3 e2 Nc3 e1N Nd5 e3 Qf3 Kd3 Kb4 a3 Qf4 e2 Qg5 a2 Qh5 Qe7 Bf4 Bf5 c8N Na6+ Ka5 Rh6 b8Q Nb4+ Qa7 Nf3 b7 e1N b8R Qe2 d7 Ng5 d8R Be7 Qh4 Rc6 Nd6 Nh7 Be5 Bf6 Rb6 Ne7 g8N Kd2 Nc3 Ned3 Re1 a1Q+ Na4 Nc1 Qc4 Bb1 Rc8 Rb8 Nf5 Rb7 Rb8 Rd7 Ng3 Rd3 Bb2 Qd1 Re4 Qe2 Rc8 Ke1 Nh6 Ng5 Nhf5 Nh7 Nh5 Kf1 Nf4 Rg3 Ng6 Rd3 Nf3+ Kg2 Rd1 h1N Nh8 h2 Ng1 Ng3 Rf1 Nh5 Ng3 h1R Rd1 Bh4 Bg7 Bf6 Rd2 Rh2 Ra2 Ng6 Nb2 Ne7 Nf5 Kf1 Ra3 Ng5 Ra4 Nh7 Ng3+
1nNq1k2/1R1p2bR/r5N1/QKbP4/N3b1Qp/BRbn4/2N1rbb1/3Rb3 b - - 0 1 legal: proof: e4 b5 h4 f5 a4 fxe4 b4 g5 hxg5 bxa4 b5 c6 b6 Nh6 Ba6 Ng8 Bb5 cxb5 Ke2 e5 c4 h5 g4 a5 d4 e3 Kd3 a3 f4 e2 c5 e1B f5 a2 g6 a4 d5 b4 Kc4 a3 b7 e4 f6 b3 f7+ Ke7 g5 e3 g7 b2 g6 e2 c6 Bc3 c7 e1B Qa4 Ra6 Ne2 Nf6 g8Q Ng4 g7 Nf2 Kb5 Nd3 Nd4 h4 Qa5 Rh5 Rh3 Re5 Nc2 Re2 Rg3 Bd4 Nc3 b1B Na4 Bdf2 Bb2 Nc5 Rb3 Nd3 Ne3 Bc2 Rd1 a1B Bc1 Bb1 Nc2 Bac3 Bb2 a2 Bc1 Nc6 b8R a1B Rb7 Nb8 Ba3+ Nc5 Nb4 Be4 Nc2 Bab2 Qh8 Bg2 g8R Bcg7 Qh5 Bbc3 Rh8 Be4 Bc1 Nd3 Qg6 Bgd4 Rh6 Bfg7 f8N Bc5 Qg4 Ke8 Ng6 Bg2 Ne7 Kf8 Ba3 Be4 Rh7 Bg2 Ra7 Bb7 c8N Bc6+ Kc4 Be4 Rab7 Bg2 Nb2 Ba4 Ng6+ Kf7 Ne3 Nc1 R3b6 Bc2 Na4 Bce4 Rb3 Nd3 Nc2 Ke8 Kb5 Kf7 Nh8+ Kf8 Ng6+
1Qr1BQ2/B3br2/1Bn1p1p1/1k2q3/2R1PbnR/2q2bB1/Q2Q3r/4KNrn b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Ne4 f4 Ng3 fxg3 Bh3 Nc6 Bf1 Nb8 c4 d5 h4 Kd7 f4 a5 e4 d3 b4 d4 c5 a4 b6 Kc6 h5 g2 b7 g6 h6 g3 f5 a3 f6 a2 h7 Qe8 f7 Bg4 Rh4 Bf3 Ba3 Nf6 Qd2 Ng4 Ne2 g1R Rc1 g2 Rc4 Kb5 Ng3 Nc6 b8B a1Q+ Bc1 e6 Ba7 Be7 f8Q Qc8 Qa2 Qb2 Be3 Qb8 Qd8 Qe5 Bb6 Rf8 h8Q Rf7 Qhf8 Rc8 Qd6 Rh1 Qb8 g1B Qd8 Na5 c6 Rh2 c7 Nc6 Be2 Qb3 Nf1 Qc2 Bf4 Be3 Bg3 Bf4 Qd7 Rcf8 c8Q Qc3+ Kd1 Rg8 Qf8 d2 Qdd8 Bh1 Bd3 Bg2 Ke2 d1N Bc2 Ndf2 Ba4+ Ka6 Qd5 Nh1 Qd2 d3+ Ke1 Na5 Be8 Nc6 Rh3 Bf3 Rh4 Qa3 Qa2 Rh8 Qd4 Kb5 Qdb2 Qb3 Qd2 Qbc3 Ba5+ Ka6 Qa7+ Kb5 Qh6 Rhh7 Ne3 Bf6 Kf1 Qb2 Qc1 d2 Qf8 Rfg7 Qc7 Rd7 Qcd6 Ka6 b5+ Ka7 b6+ Ka6 b7 Rc7 b8B Rhf7 Qe1 d1R Bb6+ Kb5 B8a7 Rc8 Qb8 Rb1 Qc1 Be7 Qd1 Qbc3 Qc1 Bg2+ Ke2 Ra1 Qcd2 Rg1 Nf1 Bf3+ Ke1
r1qQ1Q2/1Qr1Q1R1/1N3B2/1b1pq2B/1bnn1qr1/1p1PN2q/5N2/1bK1Nk2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ra3 exf4 Rb3 c5 axb5 Ba6 b6 Bb7 b5 Bc8 Rb4 cxb4 c4 Ke7 g4 Ke6 e4 Ke5 c5 Kd4 c6 d5 e5 a5 e6 f5 b7 h5 g5 b3 g6 f3 e7 f4 e8Q h3 b6 h4 g7 h2 c7 f2+ Ke2 h3 Qe7 a4 Qe1 f3+ Kd1 a3 Q1e6 a2 Be2 f1B Qf5 a1Q Qee6 f2 Qg5 Nf6 g8N Bb4 Na3 Ng4 Ne7 Nc6 b8Q Rg8 b7 Nge5 Bh5 Kd3 Nc2 Nd4 Nf5 Nc4 Qee7 Rg6 Nfe3 Bf5 Qf8 Qc8 Qge7 Rg4 Qfd8 Qc3 Bb2 Be2+ Kc1 f1Q+ Nd1 Qf2 Ne3 Qf4 Qa7 Bf1 b8Q Bh7 Qab7 Bf5 Nf3 Ke2 Rg1 h1Q Ne5 h2 Nd3 Qhf3 Qdf8 h1R Nf2 Q3e4 Rg3 Qee5 Rg1 Qd3 Ne1 Rh4 Bg6 Rh7 Bh5 Qd7 Qbd8 Qc8 N3c2 Qdf3 Ne3 Bb1 Ba1 Qh3 Bc3 Qd7 c8N Qdf5 Nb6 Qc8 Qh4 Rc7 Qhe7 Bg2 Bb2 Bge4 Ba1 Bg6 d3 Be8 Rg2 Bb5 Bf7 Rh4 Rg7 Rg4 Bh5 Qee4 Qff7 Nc6 Bf6 Nd4 Qff8 Qfe5 Ned1 Kf1 Nh1 Q4f5 Nhf2 Qff4+ Ne3+
Kn2r2r/b1p1N3/2N3Rq/1bPn2qN/6QQ/1Q1n2NB/1Q3pq1/1kr2Rq1 b - - 0 1 illegal: No possible last move, all moves rejected
1Q3N1K/1rpn4/1Nq4n/n1P4k/pq2Q3/2NqQRbN/2rr4/1n1RQb1B b - - 0 1 legal: proof: e4 b5 g4 f5 a4 fxg4 axb5 h5 b3 d5 Ba3 dxe4 Bd6 h4 Bg3 hxg3 Ke2 Kf7 Ke3 Kg6 Kf4 a5 Ke5 g2 h4 e3 d4 a4 c4 e2 f4 e1N f5+ Kh5 c5 g5 b6 Nc2 b4 Nd7+ Ke6 Nh6 b5 Ba6 f6 Ne3 d5 Ra7 f7 Nc4 b7 Na5 b8N Rb7 Nh3 g1N d6 Nf3 b6 g3 Qe1 g2 Ra3 g1R Bg2 g4 Nc3 g3 Qe3 Ra1 Rd1 Nd2 Bh1 g2 Qe4 Bg7 f8N g1Q Rb3 Ra2 Qe1 Ng4 Kf7 e5 Qe3 Rh6 Kg8 e4 Qe1 e3 Ra3 Ra7 b7 Be5 Rb3 Rf6 Kh8 e2 Ra3 Rc2 Rb3 Kh6 h5 Qg2 Ra3 Qc6 Rb3 Nb6 Nd7 Bg3 b8Q Rb7 Qa8 Rf2 Ra3 Nd5 Nb6 Ndf6 d7 Nb1 Qb8 Rf4 Rb3 Rd4 Ra3 Rdd2 Rb3 Qc8 d8Q Q8d7 Qe7 Qd3 Qbe8 Nd7 Qe3+ Bf4 Q8e4 Bb5 Q1g1 e1Q Ra3 Qh4 Qge1 Bc4 Ng1 Kg5 h6 Kh5 h7 Nh6 Nh3 Ba6 Kg7 Bg3 h8Q Qdd5 Qg8 Bf1 Kh8 Qb3 Qge6 Qg4 Qe8+ Qgg6 Qc8 Qb4 Qb8 Qgd6 Rb3 Qd3 Q3e2+ Ng4 Na2 Qdd5 Rf3 Nh6 Q2e3 Qd3 Nc3
8/q1r1bQ2/q1p5/n1B1p1Q1/K1P1Rb1R/1n1rrR2/B2N1qB1/kRBb1q2 b - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 Nc3 h6 Nd5 h5 axb5 gxf4 g5 Bg7 Ne3 Bf8 Ng4 hxg4 h4 Kd7 c4 Ke6 b4 Ke5 h5 Kd4 b6 e5 b5 a5 h6 f5 g6 e3 h7 a4 g7 f3 d3 Kc3 b7 g3 b6 g2 d4 a3 d5 e2 d6 f4 d7 a2 Rh4 Na6 b8B Ne7 g8B Ra7 b7 Nc5 Bd2+ Kb2 Rc1 a1Q Rc3 Nc6 Ra3 Qe7 d8Q Na5 Bc1+ Kb1 Kd2 e1R Qe8 c6 Bd6 f2 Qf7 f3 Re4 Bg4 b8R+ Ncb3+ Kd3 Qa2 Kc3 Ka1 Kb4 Rc7 Qd2 Re3 Ka4 Bh5 Bd3 f1Q Bc5 f2 Nf3 g1B Bb1 Bh2 Rb5 Rd3 Qg5 Bf4 Nd2 Qe1 Rb7 f1Q Rb8 Qef2 Rb4 Nd4 Rb2 Qd7 Qff6 Ndb3 Bd5 Bd1 Qf7 Rg8 h8R Be7 Rh4 Qc8 Be6 Rg7 Bh3 Qa6 Bg2 Rg8 Rh2 Rgd8 Rh4 Re3 Qf8 Qa7 Rc2 Rf3 Kb4 Nd4 Qf7 Nb7 Rb3 Q2a6 Rcb2 Na5 Ba2 Rd5 Rd3 Ndb3 Ka4 Rd8 Rd7 Rc3 Rd3 Rdd7 Rdh3 Re3 Rf3 Rdd3 Rb1+
bb1n1Q1k/Q1B1q1n1/2n3BN/5n2/1N1pp2N/RNbPn3/1r3rB1/2KBb3 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Ra3 g5 Rb3 gxh4 axb5 Bg7 b6 Bh6 b5 Bf8 Rb4 cxb4 g4 Kf7 c4 Kg7 f4 e5 f5 h5 d3 d5 Kd2 a5 b7 h3 c5 b3 g5 e3+ Kc3 h4 Kb2 e2 c6 e1B g6 e4 c7 h2 b6 d4 Na3 h3 Kb1 b2 Nf3 a4 Nh4 Qe7 Bf4 Nc6 b8N Bb7 c8B Nd8 Nb5 a3 Na6 Rb8 Nd6 Ba8 b7 a2+ Kc2 b1N Bg2 a1B Nb4 Rh5 f6+ Kh8 f7 Nd2 Ndf5 Nc4 Kc1 Bac3 Bc7 Ne3 Nh6 Rf5 Qa4 Rf2 Qa7 Bg7 f8Q Be5 Rg1 h1N Bg4 h2 Bd1 Ng3 Rh1 Ngf5 g7+ Kh7 Rf1 h1N Rg1 Nhg3 Rh1 Nf6 g8B+ Kh8 Bf7+ Ng8 Bg6 Ng7 Rf1 Ng3f5 Rg1 Rc8 b8N Bh2 Nd7 Rb8 Nc5 Bf4 Nba6 Rbb2 Nb4 Be5 Nb3 Bd6 Bb6 Bb8 Bc7 Qe6 Bdf3 Qd7 Bh3 Qe8 Rg5 Ne7 Rf5 Nec6 Ra5 Qe5 Ra3 Qd6 Qf4 Nge7 Bhg2 Qe6 Qf6 N7f5 Bd1 Qe7 Qf8+
3k4/p2n2Qq/P2B1rNr/rQr2p2/1K1nnnbb/RN1RNn2/R3NR2/8 b - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 bxc5 gxf4 g5 h6 Be2 h5 Bg4 hxg4 a4 f5 c4 b5 h4 e5 d4 b4 Kd2 g3 a5 f3 c6 g2 c7 b3 Kc3 b2 c5 f2 c6 f1N d5 e3 a6 e2 d6 e1N h5 e4 g6 e3 g7 e2 h6 Nf6 g8Q Nbd7 h7 Nc2 Qg7 e1R Rh2 Ng3 Qd5 Ngh5 Ra2 Qe7 Bf4 Re6 Nd2 b1R Nb3 Ra1 Qb5 Nd4 Ne2 g1N Kb4 Ne4 Rf2 Bb7 c8N Ngf3 c7 Rf6 Nb6 Rc8 Nc4 Ba8 Be5 Nf4 Ne3 Bd5 Ra3 Bf7 Ra2 Bh5 Ra3 Bg4 Ra2 Rd8 c8R Rc1 Rc7 Rc5 Rc6 Rc8 Rc7 Rd5 Rc3 Rcc5 Rd3 Kd8 Rc3 Rg8 h8N Qf7 Rd3 Be7 Ng6 Rh8 Ra3 Rh7 Rd2 Rh6 Rda2 Nb8 d7 Qg8 Bd6 Qh7 Qc6 Ra5 Qc4 Rdc5 Qb5 Re6 Ra4 Bh4 R4a3 Rf6 Bf8 Kc7 d8R+ Nd7 Be7 Nb8 Rd5 Nd7 Bf8 Kd8 Bd6 Nde6 Rdd2 Ned4 Rd3
n2RR1k1/2Qbb3/B2p3B/n2Q1Q2/R2n2Kn/2Qr3r/pq1P1qR1/2N2n1n b - - 0 1 illegal: No possible last move
1b6/R2nB3/Kp3q2/1R4nB/3BBRpp/k2QnRN1/2bq2PQ/3q1rrb b - - 0 1 illegal: No possible last move
Q1bnQ3/1p1Q4/r1RR1B1n/1P6/1rb2p1b/1k2Qn1K/2B2qp1/qq2R1NR b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 e6 b5 e5 Nc3 exf4 Nd5 d6 Nb4 d5 cxd5 axb4 Kf2 Ke7 Kg2 Kd6 a4 Kc5 d4+ Kc4 h4 g5 d6 c5 d5 f5 d7 b3 h5 f3+ Kg3 f2 h6 b2 h7 b1Q d6 Nh6 a5 Qf6 d8Q Be7 d7 Nc6 Be3 Ra6 Qc1+ Kb3 Bd4 c4 e4 c3 e5 c2 Bd3 f1B Qe3 c1Q e6 Rf8 Qc7 Nd8 h8R Be2 Kg2 g3 Kh3 g2 Rh7 Qf7 Bf6 Re8 Rg7 f4 Rg6 g4+ Kh4 g3 Kh3 Qh7 Qc6 Qbb2 Qc7 Qf1 Re1 Qa1 Qc6 Qf2 Qc7 Ndf7 d8R Bf1 Rd4 Nd8 Qd7 Be2 Rd6 Bf1 Bc3 Bh4 e7 Be2 Rc6 Bf1 Rgd6 Be2 Bg6 Bc4 Bd3 Qe4 Be2 Qeb1 Bd3 Rg8 e8Q Rg7 Rd1 Re7 Bf6 Re4 Re1 Bf7 Rc7 Rb4 Rc2 Bc4 Rcc1 Rb6 a6 Rc6 a7 Ra6 a8Q Qfc2 Ne2 g1N+ Kg2 Nf3 Kh3 g2 Ng1 Qf2 Rc2 Bg8 Rcc6 Bc4 Bc2+
1q6/Np1k3q/2nQb1n1/4r1Np/q1QQR2N/1NR1p1Q1/1br2rBP/2n3K1 b - - 0 1 illegal: No possible last move, all moves rejected
b1nr3k/1Q1rB2p/QQN1p1N1/2qqb1p1/6n1/2n5/B1N1PN1b/K1Qr2R1 b - - 0 1 legal: proof: b4 c5 d4 cxd4 h4 g5 a4 b5 axb5 f6 g4 Nc6 Ra3 Nb8 Rg3 gxh4 g5 Nc6 g6 Nb8 Rg5 fxg5 Kd2 d5 c4 a5 Kc2 e6 Kb2 a4 f4 d3 g7 Kf7 f5 a3+ Ka1 d4 f6 a2 b6 h3 b5 d2 b7 d3 b6 h2 c5 Qd5 c6 Ra3 c7 Bc5 Bg2 Ra7 Nh3 Nh6 g8N Bd6 Ba3 Nc6 b8Q Qc5 b7 Ng4 Bd5 Ne7 Rg1 h1Q Nf2 Bh2 Qc1 d1N Bc4 Kg6 f7 Kg7 f8N d2 Ng6 Qhd5 Qa8 Bd7 b8Q Nc3 c8Q d1R Qcb7 Nc8 N8e7 Rd8 Nc6 Kg8 Qa6 Be8 Bb3 Rad7 Qbb6 Kg7 Q8b7 Kg8 Nf4 Kh8 Bb4 Bg6 Na3 Be4 Nc2 Nb1 Kb2 a1B+ Ka2 Be5 Ng6+ Kg8 Ba3 Nc3+ Ka1 Bf3 Ba2 Kg7 Nf8 Kh8 Bb4 Be4 Ng6+ Kg8 Qb1 Qdc4 Q7c7 Q5b5 Be7 Qbc5 Na7 Ba8 Nc6 Q4d5 Qc1 Kg7 Qcb7 Kg8 Nf4 Kh8 Ng6+
nN2b1R1/1Q2RQr1/1pRBq3/1Pb1r3/1Rp1pQb1/3N2r1/2k2b1b/1Q4nK b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 Bd3 hxg4 Bc2 d5 cxd5 a4 Bb3 axb3 Kf1 Kf7 Kg2 Kg6 a4 Kf5 f4 g5 h4 c5 d4 e5 d6 c4 b5 g3 d7 e3 d5 Ke4 h5 e2 a5 e1R a6 g4 f5 b2 d6 b6 f6 Be7 a7 Qc7 d8R Qb7 h6 Rh7 d7 Rg7 f7 Bc5 f8Q Na6 h7 Nc7 h8R Nf6 Na3 b1B R8h7 Nh5 Nc2 Qd5 Nh3 Qe6 Nb4 Rb8 Bb2 Na8 Na6 Re2+ Qf2 Nf4+ Kg1 g2 Ba3 Bc2 Qb1 Kd3 Rg8 Re1+ Kh2 Ne2 Qf4 Ng1 d8Q+ Bd7 Qe7 Be8 Qef7 e4 Qbc1 Re3 Rb1 Rg3 Rb4 Bd1 Qb1+ Kc3 Nf2 Rd8 Ra4 Rd5 Nd3 Re5 Nb8 Bf2 Bd6 Bc5 Qb4+ Kc2 Qe1 Nh3 Rf1 g1B+ Kh1 Bgf2 Rb4 Ng1 Rh6 Re3 Rh7 g3 Rh6 Bg4 Rh7 Nc7 a8Q Rf3 Qb7 g2+ Kh2 Rg3 Qb1+ Kc3 Rh6 Na8 Rf6 Ne2 Rd1 g1B+ Kh1 Bh2 Rd2 Ng1 Ra2 Qf5 Ra7 Qg6 Be7 Qf5 Rc6 Qg6 Bd6 Qe6 Qa6 Bh5 Re7 Bg4 Qf1 Kc2 Qb7 Nf3 Qa1 Ng1 Qb1+
2bKNk2/2NR1r1N/Bn5Q/Q1npR1p1/p1rN1b2/3nrqP1/2rb4/Q5Q1 b - - 0 1 illegal: No possible last move
6K1/qbb2p2/1bbprR2/N2N1PQ1/n1r2Q2/q2Qn1Nk/R3p1B1/Q3N2q b - - 0 1 legal: proof: e4 b5 h4 g5 d4 gxh4 a4 d6 axb5 Kd7 Bf4 d5 Bd6 dxe4 d5 Bh6 Bf4 Bf8 d6 Ke6 d7 Ba6 Bg3 Bc8 Bd6 cxd6 Kd2 Kf5 Ke3 e5 f4 a5 b4 h5 g4+ Kg6 c4 a4 g5 Kf5 b6 a3 c5 h3 c6 a2 c7 h4 b7 h2 g6 h3 b5 Bh6 b6 Ne7 g7 Ra5 g8N Ra4 Nf6 Re8 Qd3 Rc4 Nd5 Kg4 Na3 Na6 b8Q Nc5 b7 Na4 Qa7 Kg3 b8N Bb7 c8Q Qc7 d8Q Nf5+ Kd2+ Ne3 f5 Re6 Nc6 Qb6 Na5 Bg7 Qa6 Qa7 Nc2 Bh6 Ne1 Kg4 Rb1 a1Q Ne2 Qa3 Ng3 Bc6 Rg1 h1Q Ra1 h2 Ra2 Bf4 Rg2 Kh3 Qf6 Bh6 Qg5 Bg7 Qd7 Bf6 Qdb7 Bd8 Qb4 Bb6 Ke2 Ng4 Qbd2 e3 Kf3 e4+ Kf4 e2 Qc1 Ne3 Rg1+ Qg2 Qa1 h1B Qb5 Kh2 Qb4 Qh3 Bg2 Qh8 Nc2 e1B Qbd2 Bf2 Ne1 Bc7 Qb4 Nc2 Kg4 Bfb6 Qbd2 Qha8 Kh5 e3 Qdc1 e2 Qcf4 Re3 Kh6 Re6+ Kg7 Ne3 Bh3 Be4 Bg2 Bb7 Ne7 Bec6 Nd5 Qf8+ Kh7 Qh6+ Kg8 Qh3 Bf3 Qg2 Be4 Qh1 Bf3 Bd8 Bg2 Bdc7 Qg6 Qc3 Bf3 Nd1 Nf1+ Kh3 Qg7 Rh6 Rg6 Ne3 Ng3 Qb2 Qf6 Qb3 Q6g5 Qa3 Bg2+ Kh2 Rg7 Rf6 Rg6 Re6 Bf3 Kh3 Rf6 Rc1 Be4 Rc4 Bg2+
nq1nR3/8/2N2p2/1pN1N1B1/1rq1r1bK/kBrB1qQp/BP5b/1rN1Q3 b - - 0 1 illegal: Other
2knK3/1b1Nb3/1RpNQ2r/3pB1n1/n1P1QNQ1/1pn3r1/1Nn3n1/q1QB4 b - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 h5 b4 hxg4 a4 axb4 Bh6 f5 Ra3 f4 Rg3 fxg3 Be3 Qe7 Bc1 Qd8 Kd2 g5 Ke3 b5 Kd4 d6 Kd5 Kd7 h4 g2 e4 b3 f4 b4 c4 g3 a5 g4 e6+ Ke8 e7 Kd7 e8N b2 a6 b3 a7 Qg5+ e5 Qh6 f5 Qg7 f6 Be7 f7 Nc6 h5 Nh6 Ne2 g1N Nbc3 b1N Na4 g2 Nf4 g3 Nb2 Nf5 h6 Nf3 h7 g1N Rh6 g2 Be2 Bb7 f8N+ Kc8 Ke6 Nh3 Nd7 g1N Rf6 Rg8 h8Q Nc3 Qh5 Ne1 Qg4 Ng2 Qd2 Nfe3 Bd1 Qh8 Kf7 Na4 e6 Nc2 Rh6 Rb8 a8Q Ne2 Qa6 d5 Nd6+ Kd8 Qe1 Nec3 Be3 Rg6 Bd4 Ra8 Qb6 Ra6 Be5 Rg5 Qbe3 Rg8 Qc1 Rg5 Nf5 Kc8 Qe4 Qg7+ Ke8 Nd8 Qgf3 Rg3 Qg4 Ng5 Rf6 Bf8 e7 Qh8 Rb6 Qg7 Rb4 Rh6 Rb6 c6 Nd6+ Kc7 Bd4 Qh7 Qee3 Nb4 Be5 Qb1 Qe4 Qa1 Bf6 Bg7 Be5 Bf6 Kf8 Nc2 e8Q Nce1 Qef5 Nc2 Qee6 Be7+ Ke8 Nd4 Nf6 Nc2 Qe4 Kb8 Nd7+ Kc7 Nb5+ Kc8 Nd6+
Nnqq2Qb/2Q1R2p/1NB4k/1prbR1rr/4N2P/5p2/Q2pN2q/n3QK2 b - - 0 1 legal: proof: d4 e5 f4 exd4 a4 g5 a5 b6 axb6 gxf4 b4 Na6 b5 Qf6 b7 Bg7 b8N Kd8 b6 Bf8 b7 Qb6 Bd2 Ke8 Ba5 Qf6 Bb6 cxb6 Ra2 Qg5 Ra1 Qd8 e4 f5 h4 Kf7 g4 Kg7 c4 d5 e5 d3 e6 d2+ Ke2 f3+ Kf2 b5 g5 f4 g6 d4 e7 d3 e8N+ Kh6 g7 Ne7 g8Q Nf5 c5 Be6 c6 Nd4 c7 Nc2 c8Q Bd5 Rh3 Bg7 Ra2 Na1 Qf5 Qc8 Qgf8 Rg8 Qe7 Bh8 Qde1 d1Q Re2 Rg5 Nd7 Nb8 Re5 a5 Ne2 a4 Nbc3 a3 Nb6 a2 Bg2 d2 Kg1 f2+ Kf1 Ra3 Ne4 Rc3 Qed7 Rc5 Qff7 Qa4 Rd3 Qa8 Nc7 Qa5 Nca8 Rh5 Na4 Qad8 Re3 Rg5 Qc7 Rh5 Bh1 Rg5 Bf3 Rh5 Kg2 f1R N4b6 Rg1+ Kf2 Rgg5 Kf1 Nc2 Re7 a1Q Qg8 Qe5 Qf7 Nd7 b8Q Na1 Qg8 Qd6 Qba7 Nb8 Qa2 Qe5 Bg4 f3 Bd7 Qh2 Bc6 Qf8 Nd6 Qfe8 R3e5 Qed8 Ne4
nN1RB1Q1/rq1pnN1p/p5b1/3kR1nR/1Q1P4/3n3N/N2b1p1r/1K1n1R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ba3 exf4 axb5 c5 b6 Nh6 b5 Ng8 Bb4 cxb4 g4 Ke7 c4 Kd6 d4 f5 Kd2 b3 Kc1 f3 e4 f4 g5 b2+ Kc2 h3 g6 h2 g7 f2 b7 f3 b6 Na6 b8R Bb7 Bg2 f1N Nc3 b1N Qd2 Qc8 Nh3 Nc7 Na2 Ne7 g8Q a6 c5+ Kc6 e5 Ne3+ Kb2 Bh6 e6 Ra7 Qb4 Nd2 Raf1 Kd5 c6 Ne4 Kb1 Na8 c7 Bc6 b7 Ng5 Rhg1 Nd1 Rh1 Qd8 c8R Qc7 Re8 Bb5 Rbd8 Bd3+ Ka1 Bg6 b8N Ne4 Kb1 Bd2 Qf7 Rf8 Qg8 Nc8 Re7 Qb7 Ree8 Rf6 e7+ Re6 Rf8 Ng5+ Rf5+ Ke4 e8N Ne7 Rd5 Rc6 Rb5 Rc2 Ra5 Ne6 Rh5 Ng5 Rhg1 h1N Nd6+ Ke3 Nf7 Ke4 Re1+ Kd5 Rgf1 Nhf2 Bh1 Nd3 Re4 f2 Bf3 Rc6 Bg4 Rf6 Ree1 Rf4 Re6 Be4 Bf5 Rh4 Bg6 Bf5 Nd6 Be4 Be8 Bf5 Nf7 Bg6 Ng1 Rh1 Nh3 Rh2 Re5+
nB1n2B1/5p2/1qbp1r1r/1p1B1QnR/4pPB1/kbK3Q1/3QNn2/2R3bQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 d6 d4 Kd7 Na3 Kc6 Nb5 d5 Nd6 dxe4 d5+ Kd7 Nc4 Nh6 d6 Kc6 d7 Ng8 Nd6 cxd6 Kd2 Kc5 h4 b5 c4 e5 a4 g5 f4 b3 h6 Kb4 h5 g4 a5 g3 a6 g2 a7 b2 h7 b1B c5 Na6 c6 Ne7 c7 Bg7 h6 Ba2 Qf3 Bb3 Rh5 Nc6 Ne2 g1N Qg3 Bb7 c8B Qb6 d8Q Nc7 Qd7 Nh3 Qf5 e3+ Kd3 Rg8 h8Q Ng5 h7 Nd8 Bg2 B7d5 Be4 Bc6 Rb1 Rb8 a8B Ka4 Bd2 Ka3 Kc3 Bf6 Rd1 Rg6 Rc1 Bg7 Qe8 Rf6 Be6 Rc8 h8Q Rb8 Bb7 Na8 B6d5 Rc8 Bf3 Rb8 Bg4 Rc8 Qee6 Rb8 Bc8 e4 Bd7 Rc8 Qee5 Rb8 Qd4 Rc8 Be1 Rb8 Qd2 Rc8 Nd4 e2 Bf2 e1N Ne2 Nd3 Be3 Nf2 Qh6 Qb8 Ba7 Qb6 Qhh7 Nb7 Bb8 Rh8 Qe5 Nd8 Bdf5 Re8 Qh8 Ree6 Bh7 Rh6 Bg8 Reg6 Qc2 Rf6 Qf5 Rfg6+ Kd2 Bd4 Qh7 Be3+ Kc3 Rf6 Qd1 Nd3 Qde1 Bg1 Qd2 Nf2 Rh2 Rhg6 Qhh3 Rh6 Qhg2 Bb7 Qh1 Bc6 Rh5
4QN2/1pNB1q1n/1N2Qpr1/2QQ4/pbK5/2n3Rn/1R1r1Pbp/N2qkn2 b - - 0 1 illegal: No possible last move, all moves rejected
1B1QB3/K4B2/1r2qp1Q/1N1rp1bn/Brr3b1/4P1p1/1pp2k1n/1NQ1Q2R b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 g5 cxd5 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 h4 Kd6 d4 b5 a5 c5 a6 c4 a7 c3 h5 b3 g6 f3 Ke3 g3 h6 b2 g7 c2 h7 b4 Ke4 b3 Qe1 f2 Nf3 Nh6 g8B Nd7 e3 e5 Bb5 f1R Ba4 Rb8 a8B Qg5 B8c6 Qe7 Kd3 Qf6 Kc4 Be7 Bd2 Rb5 Ba5 Ng4 Bb6 Rf2 Ba7 Qe6 Qc1 Ndf6 Be8 Rb7 Bb8+ Rc7+ Kb5 Nh5 Kb6 Nh2 Qe1 Bg5 Qc1 f6 Bgf7 Rg8 h8Q Rd2 Qh6 Rd1 Nfd2 Bd7 Na3 b1R Ka6 Rb2 Ndb1 Rh8 Ba7 Rc4 Bb8+ Ke7+ Ka7 Rb4 Bg6 Rb6 Bef7 Rc8 Nb5 Rc4 Be8 Bc8 Bef7 Kd7 d6 Kc6 d7 Kd5 d8Q+ Bd7 Be8 Rd3 Bgf7 Ke4 d5 Kf3 d6 Rd5 Qc8 Kf2 Qc7 Bc8 d7 Qg4 d8Q Rcc6 Qce7 Rc4 Ka8 Qd7 Bd6 Qc6+ Ka7 Bg4 Bc7 Qe6 Qb4 Ra2 Bb8 b2 Qc3 Ra3 Qc7 Rb3 Qd8 Rbb4 Q3e1+
N4RR1/2nR2K1/2Nrq1pN/1kN5/B2P4/p1pqR2n/R5B1/r2nn3 b - - 0 1 legal: proof: b4 b5 a4 e5 axb5 a5 c4 h5 g4 d6 gxh5 a4 h6 g6 b6 Qg5 b5 Qd8 b7 Bg7 hxg7 Be6 b6 Bd5 cxd5 Nc6 f4 exf4 b8N Rh6 b7 Rh8 Bb2 f3 Be5 dxe5 Qc1 f2+ Kd1 Qf6 Qc4 Qd8 Qf4 exf4 Kc2 f5 Kc3 f3 e4 a3 h4 f4 e5 Ra6 h5 Ra7 e6 Qe7 h6 Ra8 d6 Ra6 d7+ Kd8 h7 Na7 Kd4 c5+ Ke5 Kc7 d8R Kb6 d4 c4 Rd7 c3 Nd2 Nf6 g8R Nb5 Ra2 Nh5 Ne2 Nc7 Bg2 f1Q Nb3 f2 Ng3 f3 Nc5 Nf4 Nf5 Kb5 Nc6 Nh3 b8N Qd3 Re1 f1N Nh6 f2 Re3 Nh2 Rf8 Qf7 e7 f1N e8B Rb6 Nba6 Nf3+ Kd6 Ne1 Ke5 Qd5+ Kf6 Q5f5+ Kg7 Qe6 Rff2 Rf8 h8R Rf6 Rg8 Rf8 Na5 Rd6 Nc6 Rf5 Rf4 Rh5 Rff8 Rf5 Re5 Ne3 Re4 Nd1 Re5 Na8 Re3 Rf1 Nc7+ Kb6 Nd5+ Kb5 Nb6 Nc7 Na8 Rf2 Re7 Rb2 Ref7 Rb1 Rd7 Ra1 Bf7 Qg4 Bb3 Qe6 Ba4+
5rn1/q1bBppN1/4NkRb/2N1r1N1/3P1b2/4rNBr/4r3/1B1K1B1R b - - 0 1 illegal: No possible last move
b1N2r1B/N2n3q/2q1BPnr/3N4/N2BN2n/3bK1n1/1n2bn1k/1R2R1B1 b - - 0 1 illegal: No possible last move
b2N3N/1qn1qrbk/1R5q/3R2b1/1nB2r2/5b2/B1q4P/RRr1BKBB b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Qb3 g4 e4 h5 Qf3 gxf3 g4 Nh6 g5 Ng8 b4 Rh7 Ra3 Rh8 Re3 Be7 Re2 Bf8 Rg2 Qd7 Rg3 Qd8 Rg4 hxg4 d4 f5 g6 a5 d6 c5 g7 Kf7 d5 Kg6 b6 f2+ Ke2 a4 b7 f3+ Kd2 a3 e5 f4 d7 a2 e6 a1B d6 c4 b5 g3 b6 g2 e7 c3+ Kd1 c2+ Kd2 Ra7 e8B+ Kh7 Bh5 Ne7 Bc4 f1B Ke1 Nec6 Na3 Be2 Nh3 Be7 Bd2 Na6 b8R Bb7 Nb5 Bg5 Nc7 Rf8 Ne6 Qe7 d8B Ncb4 d7 Ba8 b7 c1R+ Kf2 Bb2 Bb6 Nc7 d8R Rf7 Rd3 Ra4 Rd5 Bd1 Rf1 g1Q+ Ke1 Be5 Nd8 Qh1 Bg1 Qg2 Bc3 Qc2 Bd2 Bc3+ Kf2 Ba1 Re1 Be5 Kf1 f2 Bf3 Bd4 Bg2 Bf3 g8B+ Kh6 Rd7 Na2 Rc8 Be4 b8R Bh4 Bh1 Rf8 Ng5 Qb2 Ba5 Bg7 Rdd1 Qb5 Ke2 f1Q+ Kd2 f3 Bc3 f2 Bb3 Qfc4 Rb7 f1Q Ke3 Qff6 Rcb8 Ra1 Ngf7+ Kg6 Kd2 Bf3 Nh8+ Kh6 Re5 Bg5+ Ke1 Qg6 Bb4 Qcc2 Bge6 Qb6 Kf1 Rf7 Be1 Raf4 Bec4 Kh7 Red5 Qh6 Ra7 Qbc6 Rb6 Nb4 Raa5 Rb1 Ra1 Qb7 Ba2 Bd4 Rd3 Bg7 Rb3 Rc1 Rbb1
RB1n3k/1nBnpB2/4R1q1/qNr2Brb/4p1P1/b2nN3/3r4/NK3NN1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 Qd3 g5 fxg5 h5 axb5 h4 e4 fxe4 Qg3 hxg3 Kd2 Kf7 h4 Kg7 b4 d5 c4 a5 Kc2 g2 g6 a4 b6 a3 c5 a2 b5 Be6 c6 Bc8 c7 Rh5 b7 Bf5 c8B Ra5 b6 Nh6 Nd2 Rg5 h5 Kh8 Bc4 Nf7 h6 Bg7 h7 Nd7 b8N Rc5 b7 Qa5 Na6 Nd8 b8B Bf6 Bb2 d3+ Kc1 d4 Nf1 Be5 Rh6 Bd6 Nb4 d2+ Kc2 d1R Ba3 Rb5 Bf7 d3+ Kb2 Re5 Nc2 d2 Bc5 Be6 Bb6 Rc5 B6c7 Bc4 Rc1 a1N Kb1 Nb3 Na1 Re1 Rd1 Re2 Rc1 d1N Rc2 Qe1 Ra2 Rd2 Ra7 Na5 Ra8 Nf8 Bf5 Nab7 Bg8 Nd7 Bf7 Kg7 h8N Bd5 Be8 Kg8 g7 Bf7 Re6 Bh5 Nf7 Nb2+ Ka2 Bg3 Nd6 Nd3+ Nc2 Be5 Nb5 Bb2 Na1 Ba3+ Nc2 Qg3 Kb1 Qd6 Na1 Qe5 Beg6 Qf6 Be8 Qg6 Bf7+ Kh7 g8N Kh8 Nh3 g1Q Nf6 Qh2 Nd5 Qe5 Nde3 Qc3 Ng1 Qb4+ Nb3 Qa5 Na1
1B6/RN3k2/Npn2r2/2PbBb1R/Rqr1b3/b1R2p1r/1br5/3KB1BB b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 Bb2 dxe4 Bc1 h5 gxh5 c5 f4 e5 Bg2 c4 Qe2 e3 Bf1 e4 Qd3 Nc6 Qb3 Ne5 fxe5 cxb3 a4 f5 h4 g5 d4 g4 c4 e2 c5 f4 d5 g3 d6 f3 a5 g2 e6 b2 h6 b3 d7+ Ke7 h7 b6 a6 Nf6 h5 Qe8 a7 Rg8 h8B Qf7 h6 Bg7 h7 Nd5 Bd2 Nb4 Nc3 b1B Nh3 g1R Nf4 b2 Nd3 Qf4 Nb5 Rg2 Rh5 Rf8 Ra4 Nc6 Nd6 Ba2 Nb7 b1B Nb4 Bb2 Be5 Bd5 h8B Rf6 d8B+ Kf8 e7+ Kf7 e8R Bf5 Na6 Rh2 Rg5 Rh3 Bdc7 Rd8 a8R Rdd6 Kf2 e1R Bg2 Rc1 Rh5 Rc2 Ke1 e3 Kd1 Qb4 Bh1 Rd8 Ra7 e2+ Ke1 Rc4 Bb8 Bbe4 Bh2 Ba3 Bg1 Bb2 Bc3 Ba3 Kd2 e1B+ Kd1 Bf2 Bg7 Bd4 Be1 Bdb2 Re6 Rg8 Bh8 Rg2 Rd6 Re6 Be5 Rf6 Rd8 Rgc2 Rd6 Bde6 Rd3 B6d5 Rc3
1nn5/Rp1N1rpn/4B2B/1BN2bpp/K1B1r1P1/1R5b/B1R4r/3b2kR b - - 0 1 illegal: No possible last move
6kN/5RN1/Bp4bn/r2p1r1N/pNN2rp1/K2B2R1/1P2Rpnb/4R1n1 b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 g5 d4 cxd4 g4 h6 a5 b6 a6 Qf6 Bf4 Qc6 Qd3 Qb7 axb7 Bg7 Qf5 gxf4 g5 Bf8 g6 Nc6 Qf6 Nb8 Qg5 hxg5 Kd1 f5 h4 a5 c4 d5 Kc2 d3+ Kb3 d2 e4 d1N e6 f3 g7 f4 e7 Kf7 e8N f2 c5 a4+ Ka3 f3 h5 Bd6 h6 Bg3 h7 Nh6 g8R Bf5 c6 Na6 b8N Nb4 c7 Bc8 e5 Nd3 e6+ Ke7 Ng7 Ne1 Na6 Bf4 Nb4 Nc3 Bd3 f1R Ne2 Ng2 Ng3 Ne2 Nd2 Ra5 N3h5 Ng1 Re1 Bh2 Nc4 g4 Rf8 Bd7 c8B Be8 Ba6 Bg6 Rf5 Ra8 h8N Rf8 Rf4 Rf5 Re2 Kf8 e7+ Kg8 e8R+ Rf8 R8e7 Rf5 R7e3 f2 Rff3 Re1 Re7 Rd1 Rg3 Rc1 Rf7 Rd1 Be4 Rd4 Bc2 Rdf4 Bd3 Nf3 Rb1 Ng1 Rbe1
8/r1bK1pN1/1R3r2/B1rB2N1/1Rb1BrBr/kB1n2nb/1rqRRP2/5n2 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 d5 c4 Qd3 cxd3 d6 exd6 Ra6 d5 Ra1 d4 Kd2 Ke7 b4 Kd6 e4 a5 c4 h5 g4 h3 g5 a4 b6 h4 b5 Kc5 e5 Kb4 e6 d5 e7 h2 e8B h3 b7 a3 c5 a2 g6 Bd6 b6 Rh4 g7 Ra5 c6 Nf6 g8B Ne4+ Kd1 d2 Ke2 d1R Kf3 d3 c7 d4 Ba4 d2 Na3 d3 Nc4 Nd7 b8R Ne5+ Ke3 Rf4 Kd4 Rc5 Bh7 Ng3+ Be4 Qf8 Bb2 Rb1 b7 d1R Bg2 d2 Bb3 Nf1 Nf3 Nd3 Ng5 Rf6 Bc1 Rb2 Ne3 Ka3 Nf5 Qd8 Rb1 a1R Ng7 Bf5 c8B Bc7+ Bd7 Qc8 Bed5 Re1 Bge4 d1B Bd2 Be2 Ba5 Raa2 Rg1 h1R Rd1 h2 Rd2 Bh3 Bg4 Rec1 Rg3 Rf4 Rg1 Rc6 Rg3 R1c5 Rf3 Rcf6 Re3 Bd1 Ree2 Ra1 Bbc4 Ba4 Bb3 Bb5 Ra8 Bc4 b8R Rg1 Ra7 h1N Rb6 Nhg3 Rab7 Rh1 Rb4 Bg2 R7b5 Rh4 Rb6 Bh3 Bd1 Qe8 Bc2 Qa4 Bd1 Bd8 Bc2 Ka2 Bd1 Nc1 Ke5 Qb3 Bdc2 Qd3 Ba4 Qc2 Bb3+ Ka3 Re6 Nd3+ Kd6 Bc7+ Kd7 Raa2 Bb6 Ra1 Ba4 Ka2 Rd6 Kb1 Bb3 Ra7 Ba5 Ka1 Ba4 Ka2 Bb3+ Ka3 Rdb6
3N1q1n/kbpK1nn1/2P1B3/NR5n/R1N1q3/2BRb1N1/b2N4/1rrnb1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 g5 e4 gxf4 g5 dxe4 Qg4 hxg4 Ke2 Kd7 d4 e5 b4 a5 h4 f5 c4 a4 b6 Kc6 b5+ Kb7 c5 e3 Kd3 f3 Kc4 f2 h5 a3 g6 f4 h6 e2 g7 e1Q d5 f3 h7 g3 d6 g2 Kd5 a2 d7 e4 Ke6 e3 Nc3 e2 Nd1 Nh6 g8R Nf7 Bh6 Na6 Bg7 Rb8 Rb1 a1N Ne3 Nc2 Bd4 Bh6 Ra1 Qf8 Nf5 Ne3 Ng3 Nd1 Bc3 Be3 Ra4 Ka8 b7+ Ka7 Rg6 Rg8 Rh5 Nh8 Rd5 Rg7 Rd3 Rg8 Nh3 g1N Ng5 Nh3 N5e4 Rg7 Bg2 f1B Nd2 f2 Bd5 Bg2 Rgg4 Qh1 Ba2 f1N Rg5 e1B Rg6 Ra8 b8N Bcb7 d8N Rg8 Nd7 Rb8 Ne5 Bgd5+ Kd7 Ng5 Nec4 Qe4 c6 Ngf7 Na5 Nb4 Bc4 Nc2 Rg7 Nd4 b6+ Ka8 Ba2 Nf5 Rg6 Ng7 Bc4 Ba6 b7+ Ka7 Rg4 Rc8 b8R Bb7 Ne6 Re8 Nd8 Re5 Ba2 Bc4 Rg5 Rb5 Rg6 Rb1 Bb3 Bca6 Be6 Bc4 Rg4 Ba2 Rg5 Ba8 Rbb5 Bb7 Rg4 Ng6 h8N Rc1 Nf5 Ng3 Rg5 N3h5 Rg1 Nd6 Nhf7 Nh8 Ne5 Ndf7 Nec4 Ne8 Rh1 Rg1 Ng3 Neg7 Ndf1 Rg2 Rg1 Rb2 Nfd2 Rb4 Ne2 Rbb1 Ng3
b1B1Rb1r/2prk3/5b1n/4p1B1/B1R1P2B/rB2rnN1/1R3bNq/1K2Rq2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 f5 dxc4 Qb3 g6 Qf3 Ra6 fxg6 Ra5 g5 Ra8 Qg4 hxg4 Kd1 b5 Kc2 e5 d4 f5 e4 c3 h4 g3 a4 f4 h5 g2 g7 f3 a5 f2 g6 Ke7 d5 Qe8 d6+ Kf6 a6 Qe7 a7 Ke6 d7 Ba6 d8B Qh4 h6 Nc6 h7 Nh6 g8R Qh2 g7 Bb7 Na3 b3+ Kb1 b2 Nc2 b4 Ne2 g1B Ra4 Nd4 Bcg5 Nf3 Bh3+ Kd6 Bd7 f1Q+ Ne1 Bf2 Ng3 Bc6 Bc8 c2+ Ka2 c1B Kb1 Bd5 Ng2 Bb7 Bh4 Bc6 Bdg5 Bd2+ Kc2 b1R Rg1 Rc1+ Kb2 b3 Rc4 Bde1 Rh1 Rc3 Kb1 b2 Rg1 Rb8 a8B Rbb3 Rh1 Bd5 Bc6 Ra3 Ba4 Re3 Rg1 Ba8 Rh1 Be7 Re8 Bd8 g8B Bf6 Rd8+ Ke7 Bf7 Rac3 Rd2 Ra3 Re2 Bb4+ Re1 Rd8 h8R Rd7 Rd8 Bd6 Rc3 Bb4 Bfb3 Bc5 Rc4 Bd6 Kc2 b1R Re2 Rd1 Re1 Rd5 Rb1 Rb5 Rb2 Rb8 Rg1 Kf7 Rh1 Bf8 Rg1 Ke7 Rh1 Qe2+ Kc1 Qd3 Re1 Qf1 Kb1 Qe2 Ba6 Bg7 Rh8 Rf8 Bc8 Qf1 Rbc2 Rf7 Rd8 Bf8 Rd2 Rh7 Rb2 Rh8 Re8+
r5bK/1p2r1Np/2BN1B1r/q3NR2/1R1bq1pP/1n1bk1B1/3B3N/3B1rn1 b - - 0 1 legal: proof: d4 a5 c4 e5 g4 d5 b4 axb4 cxd5 f5 d6 fxg4 d5 Qe7 Qd3 Qd8 Qd4 exd4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 h4 c5 a4 c4 f4 g3 a5 g2 a6 b3 f5 b2 a7 d3 d7 c3 d6 g4 Ra4 d2 Nf3 d1R Na3 g1R Nh2 c2 Nc4 b1B Bd2 Qc7 d8B+ Ne7 d7 Qc5 Ne5 Qa5 Rb4 Bh6 Bc7 Qa1 d8B Qc3 e3 Bf4 Be2 Na6 Bd6 Rde1 Bd1 Be6 B6c7 Rc8 a8N Bg8 Nb6 Rgf1 Nbc4 Qa3 Rg1 Qa5 Nd6 c1Q+ Kd4 Bc2 e4 Bd3 Rg3 Bg5 Rf3 Qc6 Rf4 Nc5 Bb8 Kg7 f6+ Kh6 f7 Nd5 f8N Nc3 Bbc7 Bf6 Ne6 Bg7 Bf6 Ne2+ Ke3 Qca4 Rf5 Ng1+ Kd4+ Re3 Bb8 Rc6 Kd5 Bf7 Bc7 Ra8 Kd4 Bh8 Ng7 Bg8 Bb8 Rc8 Bc7 Rf8 Bb8 Rf7 Kd5 Nb3+ Ke6 Rf8+ Ke7 Ra6 Bc7 Rfa8 Bb8 Qc6 Kf8 Qc2 Nd7 Rb6 e5 Kg6 e6 Qc4 e7 Qe4 Nf7 Re6 e8B Re7 Bg3 Ref3 Rc5 Rf5 Rcb5 Rh5 Rf5 Rh6 Nb6 Ra6 Bc6 Ra7 Nc4 Ra8+ Ne8 Qed5 Nfd6 Qe4 Bfg5 Be5 Bf6 Bd4 Rf2 Be6 Rf4 Bf5 Kg8 Be6+ Kh8 Bg8 Rf2 Qf4 Nf7 Kf5 Nfe5 Qf3 Re2 Qfd5 Rf2+ Ke4 Ng7 Bb2 Be1 Bd4 Nd6+ Ke3 Rf5 Qe4 Bd2+
1B3rr1/2BRB3/p2K1b1R/1qNn4/3RP3/1b2R1kn/Nq1r2N1/2q2bN1 b - - 0 1 legal: proof: f4 b5 b4 e5 c4 exf4 g4 h5 gxh5 d5 cxd5 c5 a4 c4 e3 c3 Qc2 Bc5 Qa2 Bf8 Be2 c2 Bd1 cxd1N Qa3 Nb2 Qa2 Nc4 a5 Nb6 Qa4 bxa4 axb6 a3 b5 a2 Kf2 Kd7 Kf3 Kd6 Ke4 g5 h4 f6 d4 a6 b7 f3 h6 f2 h5 f1Q b6 g4 h7 g3 h6 g2 Rh4 Ne7 Nc3 Be6 Ba3+ Kd7 d6 f5+ Ke5 f4 d5 f3 Rd4 f2 e4 Qc7 Re1 a1Q Na2 Rg8 h8R Qcc1 h7 Qab2 Re3 Qfb5 Bb4 f1B Bc5 Ke8 d7+ Kf7 d8N+ Kg6 d6 Kg5 d7 Kg4 Kd6 Nbc6 b8B Bb3 b7 Nb4 Bc7 Nd3 b8B Nf4 Ne6 Nh3 d8R Bg7 Rd7 Nd5 Bb4 Bf6 Nc5 Qf2 Be1 Qfb2 Bh4 Bg7 Bhd8 Bf6 Be7 Rd8 Rg8+ Kf4 h8N Rf8 Rg6 Ra7 Nf3 g1R Rh6 Kg3 Ng6 Rg2 Ngh4 Rd2 Ng2 Ra8 Ba7 Rae8 Bab8 Rg8 Rc4 Rd8 Rd4 Rdf8 Ng1+
1bn5/4b2R/1nr1B1kR/2q2bN1/1B1B1p2/N1bN2rq/1BKn3P/3Rb1N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Qb3 g2 Qg3 fxg3 Nb1 Rh7 Ra4 Rh3 Ra1 Rh8 Kd1 g5 b4 a5 e4 c5 d4 f5 d6 Kf7 e5 f4 d7 a4 e6+ Kg6 d5 a3 b6 a2 b7 c4 d6 g4 e7 c3 e8N c2+ Kd2 Ne7 b5 Rh6 b6 Ra3 Bb2 c1B+ Kc2 Bd2 Nf6 Be1 Nd5 Qe8 d8R Bf5+ Bd3 Nd7 b8B Nc8 b7 Qe6 Nb4 Be7 Ba7 Ndb6 b8B Rb3 d7 Ra3 Ne2 g1B Rh8 g2 d8N g3 Bd6 Be3 Bc5 g1Q Nf7 g2 Ng5 Qf2 Rh7 g1N Be4 Nf3 Nd3 Nd2 Ng1 Bd4 Bg2 Bc3 Bb4 Qc5 Bd5 Qee3 Be6 Qh3 Kd1 Rb3 Na3 Be5 Rc1 a1B Rc4 Bb8 Kc2 Qd4 Rc6 Qf2 Bc1 Bc3 Bb2 Qc5 Ne2 Bf2 Rb1 Be1 Rd1 Rh4 Ng1 Rg4 Nb1 Rg3 Rd6 Ra3 Rc6 Ra6 Na3 Na4 Rd6 Rc6 Bb6 Qc4 Bd4 Qc5 Rh4 Nab6 Rd7 Bed6 Rdh7 Be7 R4h6+
1n5N/2pNq1Nr/1n1B1n2/1qB2PB1/1R4b1/R2k1qq1/B2r1rN1/1K1Rr3 b - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 Ra2 fxe4 Ra6 Be6 Ra1 Bc8 f4 h5 Qg4 e6 f5 Bd6 g3 Bf4 gxf4 hxg4 Kd1 Kf7 Kc2 Kf6 h4 a5 d4 g5 b4 e5 b6 a4 h5 e3 b5 g3 h6 e4 d5 g4 b7 a3 d6 g2 d7 a2 b6 g3 h7 e2 Ba3 e1N+ Kc1 c3 Ba6 e3 Be2 c2 Bd3 e2 Nf3 g1R Bd6 g2 Bc4 Rf1 Ng5 g1Q Nd2 Rf2 Nf1 Qe7 d8B Qg3 Ne3 Nf3 Rd1 e1R Ng2 Ne5 Ne6 Ned7 Ng7 Ra4 Bf7 Rd4 Kb2 Rdd2 Bc5 Nc6 b8R Qf3 b7 Nb6 Ra8 Nb8 Rab1 Be6 Ra3 c1Q+ Ka1 Qc4 Rb4 Qb5 Bd6 Nc6 b8B Bd7 Ba7 Nb8 Bb3 Nc8 Bac5 Nb6 Bc2 Be6 Kb2 Bc8 Kc1 a1Q+ Bb1 Qd4 Ba2 Qde3 Kb1 Qg3 Bd5 Be6 Bb3 Qef3 Ba2 Kf7 f6 Kg6 f7 Bg4 f8N+ Kf6 Nh5+ Kf5 Nd7 Nf6 Bc4 Ke4 f5 Rf8 h8N Rf7 Bb3+ Kd3 Ng7 Qe6 Nh5 Rh7 Ng7 Nh5 Bf6 Qe7 Bg5 Nf6 Ba2+
1r5r/p2BKnB1/4Rn1n/1qN1R2R/B2P1N2/n1qb1bp1/2q2Nk1/2NR4 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 Qa4 h5 Ra3 f5 Ra1 f4 Qa3 f2+ Kd1 Bd6 Qf3 Be5 Qe4 f3 Qg4 Bf4 gxf4 hxg4 Kc2 Kf7 Kc3 Ke6 Kb4 Kf5 Kc5 Ke4 b4 g5 d4 c3 h4 g3 h5 g4 b6 g2 h6 c2 f5 g3 h7 c6 f6 Qe8 Kd6 c5 b5 c4 b7 c3 b6 Bh3 f7 Bg4 f8R Nc6 b8R Qf7 b7 Be6 Nh3 g1N Rfe8 Qf5 Bh6 c1Q Bg7 c2 Nc3+ Ke3 Bg2 f1B Nf2 Nd8 Bh3 Nf6 Na2 Nf7+ Ke7 Bd5 Rh2 Qd3 Bd7 Qb5 Rh5 Nh6 Rb1 Qcb2 Rd1 Qc3 Nc1 Nh3 Rbc8 Kf4 b8N Ng5 e4 Bd3 e5 Ngf7 Na6 Rb8 e6 Ke3 Rc5 Bb7 Nh3 f2 Rce5+ Kf3 Nc5 f1N Nf2 Bbe4 Ne2 Kg2 Nc1 Qa6 Ba4 Nd2 Bd7 Bf3 Ba4 Rg8 h8N Nb1 Ng6 Na3 Bd7 Rh8 Ba4 Bfe2 Nf4+ Kf3 N1b3 c1Q Bd7 Q1b2 Nc1 Qbc2 Rc8 Nb5 Rc6 Ng5 Rb6 Na3 Kd6 Qb5 e7 Ngf7+ Ke6 Qbb2 Ba4 Qb5 e8B Qc6+ Ke7 Qb5 Ng6 Kg2 Bd7 Bg4 Rbe6 Bf3 Nf4+
B2Nb2B/2q1p1b1/2R1q1pr/B1Nn3R/6q1/1Bkq1b2/Rn1Rq2P/K1N5 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 a4 b5 axb5 c5 g5 cxd4 f5 Ra6 Qg4 Rf6 gxf6 hxg4 Kd2 Kf7 b4 d5 c4 a4 Kc2 g3 Kb2 d3 b6 d2 b7 d1Q c5 e3 b5 d4 c6 d3 b6 g6 c7 g2 Ne2 g1Q Bg2 d2 Nbc3 Nc6 b8R Ba6 c8B Qe8 b7 Bb5 Ne4 a3+ Kb1 Qd8 Be6+ Ke8 Bd5 Kd7 f7 Qc7 f6 a2+ Kb2 Bh6 f8B Ne5 f7 Nf6 Bg7 Qgf1 Bc4 Kc6 f8R Kb6 Rfe8 Ka5 Red8 Kb4 Bb3 Be8 Rd7 Rh7 Bh8 Bg7 Rd5 Qde1 Rbd8 d1B b8N Rh6 Rc5 Qf3 Rf1 Qh5 Rf5 Qg4 Rh5 Qf2 Rc3 Qe1 Bd2 Qf2 Nc1 e2 Bf4 e1Q+ Rd2 Qfb6 Bh1 Qbe6 Be3 Be2 Bb6 Nd3+ Kc2 Nb2 Nc6+ Ka3 Nd8 Kb4 Ng3 Qf2 Ba8 Bf3 Ne4 Qe2 Rc6 Nd5 Nc5 Na4 Rb1 a1Q Rb2 Qa2 Bc4+ Qb3+ Kb1 Kc3 Ka1 Qc2 Bb3 Qcd3 Ra2 Nb2 Ba5+
N2Bq1RK/p2Rb3/1kq1np2/n1n1RB2/5P1b/4BN2/2nNb1nN/q6R b - - 0 1 legal: proof: c4 h5 d4 d5 g4 b5 a4 bxa4 e4 c5 b4 Na6 h4 Rb8 f3 Rb5 f4 cxd4 Ra2 d3 Ra3 d4 Ra1 Rd5 exd5 Rh7 Rh2 Rh6 Rh1 Rh8 c5 e5 c6 a3 c7 a2 d6 d2+ Kf2 d3 b5 Qg5 b6 Qe7 b7 Qd8 d7+ Ke7 Ke3 e4 Qc2 Rh6 Kf2 Re6 Qa4 f6 Qd1 Re5 g5 Kf7 Na3 Re7 Nb1 Ke6 Na3 Rf7 Nb1 Ke7 Qg4 hxg4 g6 Nb4 gxf7 Na6 Kg3 g6 Kf2 g5 Kg3 Kd6 b8B Kc6 h5 d1Q h6 e3 h7 e2 h8N e1B+ Kg2 d2 Na3 g3 Kh3 g2 Nf3 g1N+ Kg4 Ne2 Kf5 g4 Kg6 g3 Kh7 g2 Nc4 g1Q Ng6 Bh4 Kh8 Nd4 Bh3 Qa4 Bf5 d1N Ncd2 Ne7 Nh2 Qe8 d8R Ne6 Rd7 Kb6 Ne5 Nac5 Nef3 Ba6 c8R Ne3 Bd6 Nc6 Be7 Na5 Bd8+ Nc7 Ra8 Be7+ f8N Be2 Rb1+ Qb5 Rb3 Ng2 Re3 a1N Re5 Nc2 Rc8 Qf7 Ne6 Qa6 Ned4 Qb7 Nb5 Qc6 Rb8+ Ka6 Ra8 N7e6 Nc7+ Kb7 Nc4 Qd4 Be3 Qa1 Ncd2 Kb6 Rc8 Bd6 Be7 Qg6 Rg8 Qe8 Bd8 Be7 Na8+
3b4/b3kB1p/1RbN3B/1qqn1r2/B3R3/Np1R1qp1/1PB1Rb1n/NK6 b - - 0 1 legal: proof: d4 e5 c4 f5 g4 fxg4 d5 Na6 c5 d6 cxd6 Nb4 Bf4 Nxa2 Bg5 Ne7 Bc1 Ng8 h4 a5 Qc2 g5 Qc5 g3 Qb4 g4 Qd4 exd4 Nh3 Ra6 Rg1 Rb6 Rh1 Rb3 Ng1 b5 Rh3 Re3 Rh2 Re5 Rh1 Rg5 hxg5 Bd7 Na3 Be6 Nb1 Bc8 Kd2 c5 Kc2 b4 e4 a4 f4 a3 d7+ Kf7 f5 c4 e5 g2 e6+ Kg7 e7 Kf7 f6 c3 d6 g3 Nf3 g1B Nfd2 Qc7 d8R Bb7 d7 Bf2 Nb3 Nh6 Rh4 Ng4 Bd3 Nh2 e8B+ Ke6 g6 Be7 g7 Rf8 g8B+ Rf7 Bg6 d3+ Kd1 d2 Kc2 Qc6 Rb8 Qa4 d8N+ Kd6 Bb5 Bc6 Nb7+ Kd7 Rf4 Bd8 Nd6 Qa5 Ba4 Qb5 Rd4 Rf8 f7 Ke7 Rg4 Ba7 Rb6 Qc5 Kd3 d1Q+ Bd2 Qh1 Bh6 c2 Rc4 c1B Kc2 Bf4 Bd3 Nc3 Re4+ Be5 Ra2 Qb5 Ra1 a2 Na3 Nd5 Rae1 a1Q R1e2 Qag1 Na1 Nf1 Kc1 b3 Bc2 Qgc5 Kb1 Qh5 Rd4 Nh2 Rd3 Kf6 Re4 Bd4 Re2 Re8 Re4 Re5 f8R+ Ke7 Rf2 Qf3 Be6 Rf5 Rfe2 Bf2 Bf7+
N1bN1N2/2p2bRp/n1qkr1n1/rR3Bp1/nB3p2/R7/b3R1P1/1BN4K b - - 0 1 legal: proof: b4 a5 f4 b5 a4 e5 h4 exf4 c4 d5 h5 dxc4 h6 g6 Qb3 Bg7 hxg7 Ke7 axb5 Bg4 b6 Ke8 b5 Bc8 Qb4 axb4 Kf2 Kd7 d4 f5 e4 b3 b7 g5 b6 f3 e5 b2 d5 c3 d6 c2 e6+ Kc6 e7 f4 e8B+ Kd5 d7 Ra3 Bd3 Ra8 Ra3 Ne7 g8R Ke6 Bd2 c1N Nc3 b1B Rg7 Rg8 Beg6 Na6 b8N Ra7 b7 Na2 Bdf5+ Kd6 Na4 Ra8 Nb6 Rh8 Ne2 Qe8 Kg1 Nc3 d8N Qc6 N8d7 Re8 b8R Ba2 Nc1 Na4 Nf8 f2+ Kh2 Ra7 Re1 f1B Na8 Bfc4 Kh1 B4e6 Bb1 Bf7 Bgf5 Ng6 Re2 Re6 Rb7 Nb4 Rb8 Ra5 Rb5 Na6 Bb4+
b5qq/1Pp4B/1r4n1/KNRnRRN1/p2N1B2/p6n/b1krRBp1/B7 b - - 0 1 illegal: No possible last move
6B1/K2B1k1q/P2nN2N/1r3pn1/NR3Bp1/bN1p3p/1R3nRp/1Bbr4 b - - 0 1 illegal: No possible last move
4BBBK/1R1pB3/1nppb2p/2kN2p1/1bq4R/q1r3N1/3N2NP/1r2n2R b - - 0 1 legal: proof: g4 b5 a4 a5 axb5 f5 b6 fxg4 b4 Na6 b5 Nb8 c3 Ba6 d4 Bb7 d5 Bc8 d6 exd6 Qa4 Nc6 Qb4 axb4 cxb4 Nb8 Kd2 Ke7 Kd3 g3 Ke4 h6 Kf5 g2 Kg6 c6 e4 Ra5 f4 Bb7 f5 Bc8 f6+ Ke6 e5 Kd5 f7 Na6 b7 Ra2 b8R Be7 f8B Re2 e6 Nc7 b6 Re1 b7 Re3 b5 Rc3 b6 Na8 Nf3 g1Q+ Bg5 Rc1 Nh4 Rc3 Bc4+ Kc5 Ng2 Nf6 Ra4 Qd1 Nd2 Nh5 Ba2 Qa1 Rh4 Rg8 Kh7 Bf6 e7 Nf4 e8B Nd3 Bd5 Bd4 Bge7 g5 Bc4 Ne1 Ba2 Rg6 Bg8 Rf6 Kg7 Qa3 Kh8 Nc7 Ra8 Bf2 b8N Ba6 b7 Nd5 Ra7 Bc4 Na6+ Kb6 b8N Bc5 Kh7 Bb4 Nc7 Rf1 Rb7+ Kc5 Kh8 Nb6 Nd5 Qc8 Nc7 Be6 Nd5 Kb5 Na6 Qa8 Nc5 Q8a4 Bgf7 Q4b3 Nce4 Qc4 Ng3 Kc5 Rb8 Nc2 Rb7 Rb1 Bg8 Ne1 Bf6 Qca6 Bd8 Qc4 Bde7
N3R1k1/Rp3b1q/1P2R1n1/bB1Kn1qb/n1NB3B/2N5/1nB5/3rnrRr b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 b5 exf4 Qb3 Bh6 Qc3 Bf8 Qb4 axb4 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 Kf7 d4 c4 e4 b3 g4 b2 a4 c3 a5 c2 a6 h3 g5 f3 a7 f4 b6 f2 d6 h4 d5 f3 d7 h2 d6 h3 Ba6 f1B Nd2 b1N Ra2 f2 Ra4 Bc4 Ra2 f1R Kd4 Nc6+ Kc5 Ne5 Bb2 c1N Bd4 Nc3 Bb5 Ne7 g6+ Kg8 g7 Bf7 Nc4 N7g6 Ne2 Qg5 d8R Bg4 Rg1 h1Q Re8 h2 Re6 Rd8 a8N Na4+ Kd5 Bh5 d7 Ncd3 Nc3 Ne1 Ra1 Bb4 Ra3 Rf8 d8B Ba5 Bf6 N1f3 Ra2 Rd1 Ra1 Ne1 Be7 Qh6 Bh4 Qg2 Ra2 h1N Ra3 Qgg5 Ra1 Nc6+ e5 Nf2 Ra2 Nfd3 Ra3 Kh7 g8B+ Kg7 Ra2 Qh7 Ra1 Ndb2 Ra2 Be8 Ra1 Rf1 Bf7 Nf8 Bg6 Kg8 Bc2 Ng6 Rd6 Qge7 e6 Ne5 Rc6 Qg5 e7 Bf7+ Re6 Qc1 Ra3 Qg5 e8R+ Kg7 Bd3 Nc5 Rb3 Bf3+ Ne4 Qhh6 Re7 Kg8 Bg3 Bb4 Ra3 Qh1 Ra6 Nca4 Bc2 Ba5 Ra7 Qhh6 Bf2 Qg7 Bg3 Rh1 Bh4 Bh5 Nc3 Qh7 Re8+
r3b1R1/1nKN2b1/p2nkR2/Pb1NBN2/2b3N1/BR1br1qB/r7/2br1R2 b - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g5 Qf3 gxf4 g5 Qd5 Qd1 Qd8 Qg4 hxg4 Ke2 Kd7 d4 b5 h4 f5 c4 e5 a4 f3+ Ke3 b4 a5 g3 g6 f4+ Kd2 a6 g7 f2 d5 b3 Kc3 g2 Kb4 b2 h5 f3 d6 e3 h6 e2 c6+ Ke6 Kc5 e1B c7 e4 Kb6 e3 c5 e2 h7 Ne7 g8R Bd7 c6 Bg7 Ra3 Be8 d7 Bd2 Nc3 e1R Nh3 g1R Rb3 b1B Nd5 Nf5 Ba3 Qg5 d8R Nd6 c8N Bd3 c7 Re3 Nce7 Bc1 c8N Nd7+ Kc7 Nc5 Nf5 Ncb7 Ncb6 Qg3 Nd7 Bb5 Bg2 f1B Nf2 Bfc4 Bh3 Rd1 Ng4 f2 Rf1 Bd3 Rf8 Rg8 h8B Bdc4 Rh1 f1B Rc8 Bfd3 Rf1 Bh6 Bc3 Bg7 Be5 Rh8 Bg2 Rh1 Bh3 Rh2 Rg8 Ra2 Rb8 Bh5 Rbf8 Be8 Rf6+
q3kRR1/qRq3p1/1RN4b/1BNrB2p/1NK1n2P/2n2r2/2B2rbB/3qb3 b - - 0 1 illegal: No possible last move, all moves rejected
1N1N1b2/3r4/1RBk2R1/BB2ppKn/4q1pn/qnN1r3/N1bB1PRr/7b b - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 h5 Qf3 hxg4 Qb3 dxe4 axb5 Rh4 b6 Rh3 b5 Rh8 Qb4 cxb4 Ke2 Kd7 Ke3 f5 Kf4 a5 c4 e6 d4 b3 h4 e3 b7 a4 c5 a3 h5 e2 d5 e1R b6 b2 c6+ Kd6 c7 a2 h6 g3 h7 g2 Rh2 Qe8 Nc3 b1B Kg5 Bc2 Bd2 Re3 Nge2 g1N Nc1 Na6 b8N Nc5 b7 Nf6 Bb5 Nh5 Rg2 Nb3 Bc6 Bd7 c8B Ra7 Rb1 a1Q N1a2 e5 Rb2 Be6 B8d7 Qc8 Bb5 Qc4 Bdc6 Qc1 Rb1 Qa3 Rb2 Qe4 Rb1 Kc5 d6 Bd5 d7 Kd6 d8N Nf3+ Kg6 Nh4+ Kg5 Rg8 h8R g6 Rh6 Rh8 Na6 Rh7 b8B+ Rac7 Ba7 Rcd7 Nb8 Ng3 Kf6 g5 Rg6 g4 Bb6 Rh8 Ba5 Rh6 Ne6 Nh5+ Kg5 Qc4 Rgg1 Bh1 Rg2 Qe4 Nd8+ Nf6 Ne6 Nd4 Rh2 Ng2 Be2 Rh4 Bf1 Nh5 Rb6 Nb3 Be2 Rhh3 Beb5 Nh4 Rg2 Rh2 Nd8+
2rnr2b/Kpb3BN/3R1qN1/3R4/1N1B1q1B/nkR3q1/pPb2p2/1BR1q3 b - - 0 1 illegal: No proof kernel
2R3RK/1pq2r2/1P1BbBq1/np1N3R/7n/q1R2Nnp/1Nrb1p2/1B2N2k b - - 0 1 legal: proof: f4 d5 h4 e5 b4 exf4 c4 g5 cxd5 gxh4 b5 a6 b6 Bc5 Qb3 Bf8 Qb5+ axb5 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 c5 a4 f6 g4 h3 a5 f3 g5 h2 a6 h4 a7 c4 g6 c3 g7 c2 Bf4+ Ke7 d6+ Ke6 d5+ Kf7 d7 Kg6 d6 Kh5 Kf5 c1Q e4 f2 e5 Qa3 e6 Qc7 d8R Rh7 d7 Nc6 e7 Na5 e8N Bb4 Nd6 Bd2 Bd3 f1Q Nc4 Qg2 Nf3 Ne7+ Ke6 Kg4 Kf7 Kh3 Ne1 f5 Bd6 f4 Nb2 Nf5 Kg8 Rb8 a8N f3 Rf8 f2 d8B Bd7 Bf6 Rc8 Ra2 Qg6 Be4 Qc2 Nc7 Qcc3 Nd5 Qc7 Rg1 h1N Rg5 Nhg3 Rh5 Kh2 Bc2 Be3 Nd2 h3 Ndf3+ Kh1 Bb1 Bd2 Re8 Nh4 Rd8 Qac5 Ra3 Bf5 Rc3 Be6+ Kf8 Qa3 g8R Ra8 Rc8 Re7 Rg7 Rf7+ Kg8 Ra7 Kh8 Ra8 Re8 Rc8 Rgg8 Qd7 Rb3 Rc2 Rc3 Qc7 Rc8
n1RBR2K/b2N1Bp1/1Bq1rq2/N1R1N1P1/nRr2b1p/N3pb1p/1b3k2/8 b - - 0 1 illegal: No proof kernel
N4NK1/r2N1BQ1/p2N4/1Pb2qn1/q4r1p/1N6/1b3r1k/Nbb1R1QN b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 e5 axb5 exf4 b6 a6 Ra4 Nc6 Ra1 Na7 bxa7 Qe7 Qc2 Qd6 Qd1 Qd8 h4 h6 b4 Qf6 g4 Qd6 Ra3 Qd8 Rah3 Bg7 h5 Bf8 Rh4 Bf5 Bb2 Bc8 Bc3 gxh4 g5 Bc5 g6 Bd6 Bf6 Bf8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 g4 b5 c4 g7 f6 h6 g3 h7 g2 Nd2 f3 Nh3 g1B Nb3 f2 Na1 Rb8 a8N Ne7 g8N Kd7 d6 Ke6 d7 Qa5 d8N+ Kd6 d5 c3 e3 c2 Nc6 c1B Bc4 f1Q Nd4 Qa4 Ndb3 Bg7 Nf2 f5+ Kf4 Rb6 Kg5 Ke5 d6 f4 d7 f3 d8N Bf5 Bf7 Bb1 Ne6 Ng6 Nf8 Rb7 Nf6 Nf4 e4 Ne6+ Kg6 Kf4 N6d7 Kg3 Qe1 Rg8 h8Q Bgb2+ Kh7 Rg4 Qg7 Ng5+ Kg8 Ra7 e5 Rf4 e6 Qh3 e7 Qf5 e8N Kg2 Nh3 f2 Nd6 f1R Qd1 Bb6 Nf2 Bc5 Rg1+ Kh2 Nh1 R1f2 Re1 Qg6 Qg4 Qf5 Qg1+
4rQn1/QR3bQ1/q2Q1n2/p4R2/K1b1n1kp/1Q1qQ3/bbP5/BN3Qr1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Ng8 g4 Nf6 g5 Qc7 Be2 Qb6 h6 Qd8 Bh5 Ng8 Nd2 gxh5 g6 Ba6 g7 Nc6 Nc4 Nb8 Ne5 Bc8 Ng6 hxg6 Kd2 Kf7 f4 Kf6 b4 e5 h7 d5 b6 a5 b7 h4 b5 e4 b6 d3 Kc3 e3 Kb3 d2 Nh3 d4 Nf2 e2 Nd3 e1Q Qf3 d1B Bb2 g5 Rf1 g4 Ne5 d3 Ra2 d2 Qe3 g3 Ba1 g2 Rb2 g1N Ka4 Qd3 Nc4 Ne2 Na3 Nd7 b8Q Ng3 b7 Bh5 Qba7 d1B b8Q Ne4 Nb1 Ba3 Rb7+ Bb2 Qc7 Bf7 Qd6+ Be6 Rf2 Bh5 Rf3 Bf7 Rf2 Ne7 g8Q Qee2 Qgg3 Rg8 h8Q+ Rg7 Qg8 Qa6 Qg1 Rb8 Qf1 Rg1 Qgg3 Ng8 Qb3 Qad3 Qge3 Qa6 Rf3 Qed3 Rf2 Kg7 f6+ Kh6 f5+ Kh5 Rf3 Kg4 Rf2 Bg6 f7 Bc4 f8Q Ndf6 Qg7 B8e6 Rf3 Re8 Rf2 Nd7 f6 Bed5 f7 Ndf6 f8Q Be6 Qge7 Bgf7 Rf5 Bed5 Qba3 Ba2 Qb3 Bc4 Qee5 Nh7 Qh8 Nhf6 Qhg7+
1NKQ4/3Q1Q1b/5n2/1Bn1nbN1/rP2rQBk/1Bb4r/Nb3q2/rQ6 b - - 0 1 legal: proof: c4 a5 b4 e5 f4 b5 fxe5 d5 cxd5 a4 a3 Bb7 Ra2 Ba6 Rb2 Bb7 Rb3 axb3 a4 Ba6 axb5 Bc8 g4 g5 h4 h6 Rh3 Qe7 Rf3 Qd6 Rf4 Qd8 Bb2 Ra1 Bd4 Ra8 Bc5 Ra6 Be7 gxf4 g5 Ra5 g6 Ra8 Bg5 hxg5 Kf2 Ke7 Kf3 c5 Ke4 c4 d4 g4 h5 g3 e6 Kf6 e7 Kg5 Ke5 f5 e8B g2 e4 b2 d6 f3 g7 f4 d5 c3 b6 c2 h6 c1N d7 f2 Ke6 f3 b7 Na2 d6 Kg4 e5 Nc1 h7 Nf6 g8B Ra4 Nc3 b1B Nh3 g1B Be2 f1R Na2 Qb6 Ng5 Nc6 b8N Nd3 Bgf7 Bc2 Qb1 Kh4 Bd1 f2 Bg4 Re1 Bg8 Bb7 d8Q f1R d7 Bg7 Qe7 Re3 d8Q Bc8+ Qed7 Re4 Kd6 Rc1 e6 Qf2 Kc7 Nc5 e7 Ne5 Bb3 Bd3 Qb5 Be6 Qbd7 Bf5 Kc8 Bh2 Qc7 Bf4 Qd6 Bd2 Qd4 Rf1 Qe3 Bc3 Qf4 Rf8 h8Q+ Bh7 Qb2 Ra1 Qb1 Bc2 Qg8 Bb2 Qc4 Rh8 Qf7 Bh6 Qg8 Re2 Qd3 Bg6 Qd8 Bcf5+ Ne6 Re4 Qg5+ Kg3 Bb5 Rh7 Qgc1 Bd2 e8Q Rh3 Qed7 Bdc3 Qgf7 Bh7 Qf4+ Kh4 Ng5
N3R3/1Rb2nnK/3RbR1P/3n2Qp/3n1N1Q/NR3Q2/3n1q1p/1rk3q1 b - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 g5 a4 b5 axb5 a5 h4 gxh4 g5 Ra7 Bg2 Rb7 Bh3 Nh6 Bf1 Ng8 e4 e5 d4 f6 d6 Rh6 gxh6 Ra7 d5 Ra8 Be3 f5 Bd4 exd4 e5 Qd7 Bg2 Qd8 Be4 fxe4 Qg4 Bb7 Qf3 Bc8 Qd1 Qe7 Kf1 Kd7 Nc3 Nf6 Na2 Nc6 Rh3 Bb7 Rb1 Bg7 Qe2 Rh8 Ke1 Ke8 Nc3 Bf8 Qd1 Ng8 Rh1 Nb8 Ra1 Bc8 Nb1 Qd8 Kd2 Kd7 f4 c5 b4 d3 Ke3 h3 b6 a4 b5 c4 f5 h2 Kf4 c3 f6 c2 Kg5 c1Q+ Kg6 d2 f7 a3 b7 a2 b6 e3 Qc2 d1N Qd2 e2 Qe1 Nc3 Na3 Qh4 Rb1 a1N Nh3 Nc2 Nf4 Nc6 b8R Qf2 b7 N2d4 Rb3 Nd8 Rf1 Nf6 Qd2 Be7 f8Q e1N Ra8 Nf7 b8R Bd8 R8b7+ Bc7 Rab8 Ne8 e6+ Kd8 e7+ Kd7 Qe3 Ng7 e8N Rg8 Kh7 Nef3 Qe5 Qd1 Qg5 Nd2 Ra8 Qde1 Ra6 Qa1 Re1 Qc1 Re6 Qcg1 Rf6 Kd8 Rc6 Be6 Rcb6 Kc8 d7+ Kd8 Qd6 Rf8 Qc6 Ke7 d8R Rg8 Qc4 Rf8 Qf1 Rg8 Rdb8 Kd7 d6 Nd5 Qe2 Rf8 Qf3 Rg8 R6b5 Kc6 R5b6+ Kc5 d7 Rf8 d8Q Rg8 Nc2 Kc4 Rd6 Qe3 Rb1 Kc3 Na3 Rf8 Nb5+ Kc2 Rb3 Qe2 Na3+ Kc1 Qe7 Qef2 Ra8 Ba5 Nc7 Rb8 Qh4 Bh3 Qe5 Be6 Qeg5 Bb6 Ra6 Ba5 Na8 Bc7 Rd8 Qd1 Re8 Qdg1 Rba7 Rb4 Rb7 Rb5 Rd6 Rb6 Re3 Rb1 Reb3
1Q3n2/k3N1q1/p4P1p/1Q4b1/1B3Qbn/1n1q3r/R1QQn2R/1n3RQK b - - 0 1 illegal: No possible last move
3r2k1/1bQ5/3Q1pn1/1RNn2rp/3n1r1q/1n1PRQ1Q/2r3QB/R4QK1 b - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 e5 a4 a6 axb5 Bg4 f4 exf4 g3 Ne7 b6 Qc8 b5 Bf5 b7 Qd8 b6 Ng8 Bh3 Bc8 Bd7+ Ke7 Na3 g5 Bb5 axb5 Nc2 g4 Nd4 Ke8 h4 Bh6 Ndf3 gxf3 g4 Bf8 g5 Bh6 g6 Bg5 hxg5 Bf5 Qc2 Bh3 Qd1 Bc8 Kf2 Kf8 e4 h5 e5 c5 g7+ Ke8 d6 c4 g6 b4 d3 c3 e6 c2 e7 b3 Ne2 b2 Re1 b1R Kg1 Rb5 Nc3 Ra2 Ne4 Nc6 b8R Nd4 Re3 Bb7 Qf1 f6 Ba3 c1N Nc5 Rc2 Bb4 Ncb3 Ba5 Be4 b7 Bc6 Bc7 f2+ Kh2 f3 Qh3 f1N+ Kg1 Nfd2 Qf1 Nc4 Qh3 Nh6 Qf1 Rf8 g8Q Ng4 g7 Nce5 Qe6 Ng6 g8Q Be4 Qc8 Ra5 Qd5 Rg8 Qg5 Kf7 d7 Rh8 Qf5 Kg8 Bh2 Qf8 e8Q Bd5 Re6 Ne3 d8Q Be4 Qb5 Nd5 Qdc7 Qe8 Qg5 Qf8 Qgg2 f2+ Kh1 Bf3 Re3 Qe8 Qbc6 Be4 Qg1 f1R Qh3 Rf4 Qf1 Rb5 Kg1 Ra5 Ra8 Qc8 Ra6 Qg4 Rb6 Qh4 Rb4 Bf5 b8Q+ Bc8 Qbb6 Bb7 Rb5 Ra8 Rae1 Rd8 Ra1 Rh7 Q7d6 Re7 Qbc7 Re5 Qgf3 Rg5+ Qf3g2 Nc3 Qe4 Nd5 Qef3
2N1KQ2/2rpnp2/1P1RQ2N/k2QR2n/N5qr/r1Rq3q/1R1r3n/1R6 b - - 0 1 legal: proof: g4 c5 e4 e5 d4 cxd4 h4 b5 a4 g6 axb5 Nh6 f4 Ba6 Bd3 Ng8 Kf1 Be7 Be3 Bg5 hxg5 Bb7 Bf2 Bd5 f5 Ba2 Be2 Be6 fxe6 d3 Bd4 exd4 e5 d2 Bd3 Nf6 Be4 Ng8 Bf5 gxf5 Kg2 h5 Kh3 a5 Kh4 f4 c4 d3 b4 f3 c5 f2 c6 f1R c7 a4 c8N a3 b6 a2 b7 Rf4 b5 Rf6 g6 Qb6 Kg5 Kd8 e7+ Kc7 e8Q h4 g7 h3 e6 h2 e7 Qd4 Nf3 Rh4 Ne5 Nc6 b8R Nb4 Nc3 Ra7 Rc1 a1Q Na4+ Nc6 Rc3 Nh6 g8Q Qa3 Qgf8 Rf3 Rg1 Re3 Kf6 h1N g5 Ng3 g6 Qg4 g7 Qb3 Qf3 d1R g8R d2 Rg6 Qh3 Kg7 Ng4 Qd5 Nh2 Rd6 Nh5+ Kg8 Qc2 Ng4 Qd3 Nh6 Rf3 Ra8 Kb7 b6 Ka6 Rf1 Rb1 Rf2 d1Q Rd2 Rb5 Rb2 Ka5 Rb1 Ra6 Ra7 Rf2 Rc7 Ra8 Rcb3 Rd2 R3b2 Na7 Rc3 Rc5 Qd8 Q1e2 e8R Nc6 Re5 Qeg4+ Qg5 Ra6 Qg6 Ra8 Qfg7 Ra6 Kf8 Ne7 Ke8 Ra7 Qf8 Rc7 Qf6 Rb5 Nc5 Rb3 Qfe6 Ra3 Na4+
1n2k2q/n3BQQ1/N3N3/Br1B2Q1/npbK3N/BB3p1p/2b2P1q/2b5 b - - 0 1 legal: proof: c4 a5 d4 e5 dxe5 c5 b4 cxb4 a4 b5 axb5 Ra7 b6 Rc7 Qb3 Rc5 Qd1 Rb5 cxb5 g5 h4 Nh6 h5 Rg8 Ra3 Rh8 Rah3 Ng8 Rh4 gxh4 g4 h6 g5 Ba6 g6 Bc8 Rh3 Bg7 Rg3 Bf8 Rg5 hxg5 Kd2 d5 Kd3 f5 e4 f4 g7 a4 h6 d4 h7 g4 b7 a3 b6 g3 e6 a2 e5 a1Q e7 h3 Qh5+ Kd7 e8B+ Ke7 e6 g2 Qg5+ Nf6 g8Q Na6 b8B Qc7 b7 Bh6 Nf3 g1N Nh4 f3 Na3 Ne2 Bf7 Qh2 Nb5 Nc7 Q8g7 Nc3 Ba3 Na4 Bg8+ Ke8 e7 Bd7 Bb3 Be6 Ba7 Nd7 b8N Rf8 h8B Rf5 Na6 Nb8 Bb6 Bc4+ Ke4 d3 Ba5 d2 Nd4 d1B Ne6 Nb5 Bd3 Nbc3+ Kd4 Bc2 Be4 Rb5 Bd5 Qb2 Qg4 Bc1 Q7g5 Nb6 Bf6 Nc8 Qg7 Na7 Q4g5 Qb1 Be5 Na4 Bd6 Bd1 Bc5 Qh7 Bd6 Qh8 Bc5 Kd7 Bd6 Bc2 Bc5 Qd8 e8Q+ Kc8 Qeh5 Qh8 Be7 Kd7 Ng6 Ke8 Nh4+ Bg6 Qhg4 Bb1 Q4f4 Bc2 Qf7+
1nQ1rb2/B3r1Nr/3b1BPq/qQ1K4/b1n2N1r/N6B/b4N2/b3kQ1N b - - 0 1 legal: proof: f4 h5 a4 d5 c4 g5 cxd5 gxf4 g4 b5 axb5 e5 b4 Be6 h4 Bc8 g5 e4 Rh3 Kd7 Rf3 Ke8 Raa3 Na6 Rg3 Nb8 Raf3 exf3 Rg4 hxg4 Kf2 Kd7 d4 Kd6 e4 f5 g6 c5 h5 a5 h6 c4 h7 a4 b6 c3 b7 a3 b5 c2 b6 g3+ Ke1 a2 Kd2 a1B Kd3 f2 Kc4 f3 Bh3 f1B+ Ne2 g2 Be3 g1B Na3 f4 Qc1 Bg2 Qf1 f2 Ng3 f3 Nh1 Nf6 Bg5 Ne8 Bf6 Be6 e5+ Kd7 Qb1 Ra7 Qf1 Nd6+ Kc5 Nc4+ d6 c1Q d5 Rg8 h8N Bh2 Nf7 Qh6 Ng5 Rg7 Ne4 Re7 Qd3 f1R Nef2 Re1 Qf1 Nc6 b8B Re3 Ng4 f2 b7 Ra4 Ba7 Nb8 Qb1 f1R Ngf2 Be4 Qd3 Rfe1 Qf1 Rc3 Kd4 Bc2 Kc5 Qa5+ Kd4 Kd8 d7 Kc7 d6+ Kc6 d8Q Rb4 d7 Ba4 Qe8 Bd5 e6 Bd6 Qd8 Rh7 e7 Re5 e8N Ree7 Nc2 Kb5 Qc8 Bf7 d8N Bg8 Ne6 Re3+ Kd5 Re4 Qc7 Rh4 Bc3 Rb1 Bf6 Re1 Na3+ Kb4+ Qc5+ Kb3 Ng7 Re2 Bg5 Kc3 Bf6+ Kd2 Qb5 Bf7 Qg2 Ke1 Qf3 Be8 Nf4 Bd7 Qg2 Bf5 Qf3 Bb1 Qd3 Ba2 Qf5 Na6 b8Q R2e4 Qc7 Nb8 Qcc8 Re3 Qd3 Re2 Qf3 Re8 Qd3 R2e7 Qf1+
5n1B/2bQ1N1P/2NrQQ1B/k1Nb2r1/brr2Q2/nB2b2q/3b3b/K6Q b - - 0 1 legal: proof: f4 h5 a4 d5 c4 g5 cxd5 gxf4 g4 b5 axb5 e5 b4 Be6 h4 Bc8 g5 e4 Rh3 Kd7 Rf3 Ke8 Raa3 Na6 Rg3 Nb8 Raf3 exf3 Rg4 hxg4 d4 Kd7 Kd2 a5 Kc3 f5 Kb2 c5 e4 Kc7 g6 Kb6 g7 g3 h5 f2 h6 c4 d6 g2 d7 f3 d5 c3+ Ka2 f4 d6 a4 e5 a3 h7 c2 e6 Ra5 e7 Nf6 e8Q Ng4 g8Q Ne3 Qc4 Bb7 Qh5 Bh6 Qh3 Qc8 d8N Nd7 Ne6 Nf8 d7 Bd5 Qb3 Nc4 Ne2 g1B Nd8 Bh2 Ka1 a2 Qbd3 Na3 Nd2 Rg8 Bg2 f1R Nb3 f2 Nf7 f3 Ned4 Rg5 Nc5 Ra4 d8Q+ Bc7 Bb2 c1B Nc6 Bd2 Qf6 Qf5 Qh1 Qh3 Qb3 Re1 Qe3 f1B Qee6 f2 Be4 Re3 Bc2 Re4 Bb3 Rc4 Qdg4 Be2 Qd7 Bd1 Qge6 Rg8 Be5 Bhe3 Bf4 f1R Bh6 Re1 Ne4 Kb7 b6 Ka6 b7 Rg5 b8B Kb6 b5 Rab4 Nc5 Re2 Nce5+ Ka5 b6 Rf2 b7 Rff5 Kb2 a1B+ Ka2 Rff4 Ba7 Bb2 b8Q Bbc1 Ka1 Rfd4 Nf3 Rd3 Nd4 Bh2 Qbe5 Bef4 Q5f5 Bc7 Qfe4 Be3 Qef4 Bcd2 Bb8 Bb6 Be5 Bc7 Qf6f5 Bc2 Bh8 Bd1 Qff6 Bc2 Ba2 Ba4 Bb3 Bg2 Ne2 Rd6 Nd4 Bd5 Nc6+
8/bq1q1rPn/rQ1nQ1Q1/nR2R3/3p1r1r/k2N1bQ1/2R2KBQ/3Q2r1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 f4 Qb6 g4 Qc7 f5 Qd8 Bf4 h6 Nd2 gxf4 Ne4 h5 g5 Qc7 Nf2 Qd8 Ng4 hxg4 c4 e5 b4 d5 h4 Kd7 g6 Kd6 b6 a5 g7 e4 f7 g3 f6 a4 b7 d3 h5 d2+ Ke2 g2 h6 d4 b5 Kc5 b6 Kb4 h7 f3+ Kf2 a3 c5 e3+ Kg3 a2 c6 f2 c7 e2 Rh2 e1Q Ne2 g1R+ Kf3 Ka3 Rb1 a1R Nf4 Ra7 Bg2 Qee7 Nd3 Qdd7 Rb5 Nc6 b8Q Bb7 c8Q f1R+ Kg3 Ba8 b7 Rf4 Rhh5 Na5 Rhe5 Qb4 Qc4 Qb2 Qe6 Bc5 f8Q Qb4 f7 Nf6 Qfe8 Ra2 Qb1 d1N f8R Ne3 Qd1 Nec4 Qg6 Nd6 Rc8 Raf2 Qc7 Ra6 b8Q Ba7 Qcb6 Bf3 Rc2 Qb3 Q8c7 Qd5 Qcb8 Q5b7 Q8c7 Rb8 h8Q Nh7 Qe1 Rbf8 Qd1 R8f7 Qhb8 Re2 Qh8 Ree4 Kf2 Nf6 Qh2 Nh7 Qgg3 Rh4 Qcc6 Reg4 Qe4 Rgf4 Q4g6
7R/pB1p2n1/1r3QQ1/3B1b1p/1rQqR2Q/nPb5/n2Q1b1K/kqB4R b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Ng8 h6 Ba6 Na3 Bb7 Nb1 Bc8 g4 Bg7 g5 Na6 Ne2 Nb8 Nf4 Bf8 Nh5 Ba6 Na3 Bc8 Nc4 Nf6 Ne5 gxh5 g6 Ng8 g7 Nf6 Ng6 hxg6 Bf4 Ng8 Be3 Qb6 Bc1 Qd8 f4 Kf7 Kf2 Kf6 Kg2 e5 c4 e4 h7 g5 c5 e3 b6 d3 b3 g4 b7 d2 c6 g3 c7 e2 Kh3 e1N Qc2 d1Q Qd2 g2 Qd3 g1B Bd2 Nc2 Be3 Bb4 Bc1 Bc3 Qc4 Na3 Bg2 Ne7 g8Q Nbc6 b8Q Bb7 c8B Nb4 Bd5 Bf2 Kh2 Na2 Rb1 Ba6 Qbb4 Qb6 Bcb7 Qbd4 Qg2 Rhf8 h8R Rfb8 Rb2 Q1d3 Re2 Qb1 Re4 Bb5 Qg3 Bc6 Qe3 Bb5 Qd2 Ba6 Bbc6 Rb6 Bb7 Rb8 Qa4 Nc8 Qab4 Nd6 Qa4 Ne8 Qab4 Kg7 f6+ Kg6 f7 Kf5 Qe7 Ng7 Qh4 Rb4 Bc8 R8b6 f8Q+ Rf6 Qe8 Rfb6 Bcb7 Bb5 Qc7 Bd3 Qc4 Bc2 Qg4+ Kf6 f5 Bd3 Re3 Be4 Qeg6+ Ke5 f6 Qc5 f7 Qd4 Rf3 Bf5 f8Q Qe3 Qh3 Bd4 Qcf1 Bb2 Qc2 Kd4 Qh4+ Qe4 Rf4 Ba1 Qce2 Kc3 Qfe7 Qd4 Re4 Bb2 Qee1+ Kc2 Qef6 Bc3 Bd2 Kb2 Bc1+ Ka1 Qd2 Ne6 Qa6 Ng7 Qc4
Nr3B1b/KQ1b2PQ/B2B3N/1ppn3N/2Nb2Qq/1p2Nrbn/8/r1k5 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 h6 a4 Nc6 h4 Nb8 Ra3 Rh7 Rf3 Rh8 Rf4 gxf4 g5 h5 Rh3 Qd6 Rg3 Qd8 Rg4 hxg4 Ke2 Kf7 Kd3 c5 Kc4 e5 Kb5 e4 d4 g3 g6+ Ke8 a5 Kd7 f7 Kd6 h5 f3 f6 e3 a6 f2 a7 b6 h6 e2 h7 e1B Nd2 g2 Nh3 g1B Qg4 b3 Nc4+ Kc7 d6+ Kb7 d7 Qc7 d8Q Nd7 d5 Bh6 f8B Ne5 f7 Nf6 d6 Nf3 d7 Bg7 Qe7 Qd8 Nf4 Nd5 Nh5 Ng5 Bf4 Nh3 Ne3 Be5 Be2 f1R Bh2 Rb8 a8N Rf3 Bg3 B5c3 Bd6 Bg3 Bf1 Rg8 h8Q Rg7 Qee4 Qh4 d8N+ Ka7 Qh7 Bd7+ Kc4 Ka6 Qe7 Bf5 Qb7+ Ka5 Bd3 Ka4 Be2 Ka3 Kb5 Kb2 Ka6 Rf2 Ka7 Bd7 Bc4 Rg8 Ba6 Bh8 g7 b5 Bfe7 Nb6 f8N Rf3 Ng6 Kc1 Nf7 Nd5 Nh6 Rge8 Bf8 Re4 Ng2 Ra4 Ne3 Ra1 Ne5 B1f2 N5c4 Bg1 Nef5 Bd4 Nfe3
qr1qR2k/n3NQ2/1r1nR2K/3b4/pQ2b2N/b2RRNQp/1p1Pb3/R7 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 e5 c4 exf4 cxd5 Bh3 Qc2 Bg4 Qd1 Bc8 a4 Ne7 e3 Qd7 b5 Qd6 b6 Qc5 Ba6 Qc3 Ba3 Qf6 Bb4 axb4 a5 Ng8 Bf1 Qc6 a6 Qd6 a7 Qd8 Ba6 bxa6 Kf2 f5 Kf3 Kf7 g4 Kg7 e4 c5 b7 h5 d6 c4 e5 a5 e6 a4 g6 c3 g5 h4 d7 h3 e7 c2 e8R c1Q Re1 b3 Ra3 b2 Qb3 Qf6 d8R Nc6 b8Q Nh6 Nc3 Bb7 Nce2 Nf7 Nd4 Rh6 Re5 Kg8 g7 Qc4 Qa2 Qa6 Rae3 Kh7 Qc4 Ba3 Qb4 Qe7 Rdd5 Qd8 g8R Qaa5 Rge8 Rf6 Q8d6 Rb8 a8Q Rh6 g6+ Kg7 R8e7 Kh8 Qa7 Ba8 Qad7 Bb7 Q6c7 Qa8 Qdd6 Na7 g7+ Kg8 Qdd7 Rb6 Re8+ Kh7 g8N Kh8 R5e6 Bc6 Kf2 f3 Kg3 f2 Kf4 f1B Qde7 Bg2 Rd7 Nh6 Kg5 f4 Nf5 f3 Rdd3 f2 Nh4 f1B Qg3 Bge4 Ngf3 Be2 Ra1 Nf5 Kg6 Bb7 Qf7 Nd6+ Kh6 Bbd5 Ne7+
3b2Bn/1Bp1pQ2/1q2NBQ1/pkPr4/1n3Q2/1qQ3K1/1q1R1n2/rQ1q1Q2 b - - 0 1 illegal: Other
R1R1n2n/nr1R2R1/b4b1k/2pP2R1/1Br3B1/1BR2qq1/Q3qp2/1K1nR3 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 f3 Nh3 b6 Nc3 b5 axb5 h6 Nf4 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 e4 f5 h4 Kf7 b4 Kg6 d4 c5 Kd2 a5 Kc2 a4 b6 g3 e5 g2 h5+ Kh7 d6 g1N g6+ Kh6 d7 f2 d5 a3 b5 a2 g7 Nf3 e6 Qf6 d8R Nh4 e7 Qe5 e8B Ra4 b7 Qe2+ Bd2 Be7 b6 Rh7 Qb1 Ng6 Bd7 Nh8 Rh3 Nc6 b8R Bf6 b7 Na7 Ra8 Rc4+ Rc3 Qf3 b8R Ba6 Bd3 f1N Rbc8 Ne3+ Kc1 Qg3 Bc2 f3 Bb3 f4 Bg4 f2 Rd7 f1Q+ Be1 f3 Qc2 Ne7 g8R f2 Rg7 Ng8 Rb1 a1Q Qa2 Nd1 Rg5 Rg7 Kc2 Kh7 h6 Qe2+ Kc1 Be5 Bd2 Nf6 Kc2 Ne8 Rcc7 Nb2 Re1 Bf6 Rac8 Nd1 Rb7 Kg8 h7+ Kf8 Qa4 Qa3 Kb1 Qb4 Qa2 Qa3 Re3 Re7 Bb4 Rg7 Rc3 Rf7 Rh5 Kg7 Rg5+ Kh6 Ra8 Ng6 h8R+ Rh7 Rg8 Nh8 Rbb8 Re7 R8g7 Rf7 Rdd8 Rb7 Rbc8 Qgf3 Rdd7 Qg3 Rd3 Qgf3 Ba4 Qc3 Bb3 Qce5 Re3 Qeg3 Rc3
4K2N/1p2BBp1/k1R1p1b1/p1b1qPR1/p4rrB/3BR3/1B3nB1/1q2B1n1 b - - 0 1 illegal: No possible last move
1bRB1Q1K/p1pN2Q1/BQ3P1n/1r6/kbq1B1b1/1pQn2Q1/6r1/1B6 b - - 0 1 illegal: Other
NbRn4/nr4b1/3N4/1rq2QP1/4KN2/1Q1Nn1Q1/kN5p/nq1Q1B1r b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 a4 b5 axb5 d5 cxd5 Na6 b6 Qg5 b5 Nb8 Ra4 Qd8 g4 Bf5 Rb4 axb4 Bb2 Bd7 Bf6 gxf6 g5 f3 h3 Bg4 hxg4 f5 Qc2 f4 Kd1 f2 Kc1 Be7 Qd1 Bf8 Kc2 Kd7 Kd3 Kd6 e4 Kc5 d6 f5 d7 h5 e5 f3 g6 b3 g7 Kb4 e6 c5 e7 b2 e8N c4+ Ke3 f4+ Ke4 c3 d4 c2 d5 Kb3 g5 h4 d6 h3 b7 h2 b6 Ra7 Bh3 f1R Nc3 b1Q Bg2 f2 Nh3 f3 Nf4 Nc6 b8Q Qc8 d8Q Nge7 d7 Rb7 Na4 Ka2 Nd3 c1B Qg3 Na7 Nb2 Nec6 Nd6 Bf4 Qf6 Nd8 Qf5 Qc5 g8N Rh7 Ne7 Bg7 Nec8 Rg1 Bh3 f1N Bg2 Ne3 Bf1 Rb8 b7 f2 Nb6 Nc2 Na8 Bfe5 Nc7 Na1 Na8 Rc8 b8Q Bf4 Qb4 Rb8 Qc3 Rb5 Qcc2 Nf7 d8N Bfe5 Nc6 Nd8 Nd4 Bf4 Ne2 Bfe5 Bg2 f1N Nef4 Ne3 Bh3 Re1 Rg1 Rf1 Rg2 Rh1 Re2 Bf8 Bf1 Rhb7 Qc3 Bh6 Rc2 Bhg7 Qb4 Qb6 Rc8 Qc5 Ne8 Bc7 Nd6 Bb8 Qbb3+
1RQB1bn1/1rq1R2k/1Q2q3/R1n1pq2/6nr/r2Q2N1/1QQ2Pr1/4K2R b - - 0 1 legal: proof: c4 b5 b4 f5 e4 fxe4 a4 d5 cxd5 a6 axb5 Nd7 b6 Nb8 b7 Bg4 Qc2 Bh3 Qd1 Bc8 g4 h5 b5 Kd7 b6 Ke8 Bh3 Qd7 Nc3 Qd8 Nb5 Bf5 gxf5 axb5 Bg4 hxg4 d4 Kf7 h4 g5 d6 Kg7 d5 c5 d7 e3 f6+ Kh7 h5 e2 f7 c4 d6 g3 h6 g4 Qd5 b4 Nh3 b3 Ra3 b2 Rh2 b1R Qd2 g2 Ng1 c3 Ra5 c2 Rh1 Nc6 b8Q g3 b7 Ne5 Qc8 Qc7 b8R Rb7 d8Q Ng4 d7 e6 Ba3 c1N Be7 Nb3 Bh4 Nc5 Qc2+ Ne4 Qf6 e5 d8Q Raa7 Qb2 Nc5 Qfb6 Ra6 Qdd6 Ra8 Bd8 Ra6 Kd2 e1R Ne2 g1Q Qdd4 g2 Ng3 Re4 Qc4 Qb1 Qcc2 g1Q Qd7 Qg2 Qdd3 Qa2 Kd1 Qf3+ Kd2 Qf5 Kd1 Bd6 f8R Qae6 Re8 Rd4 Ke1 Bf8 Rb5 Ra3 Ra5 Kg6 Bf6 Rh7 Bd8 Rg7 h7 Rf4 h8Q Rd4 Qh3 Rf4 Nh5 Kh7 Ng3+ N4h6 Ne4 Rg2 Ng3 Rh4 Qg4 Qee7 Qgc4 Ng4 Qce6 Qed6 Qc8 Qe6 Re7+
1Qb2b1n/N1Q2r2/4qN2/bN1P2b1/k1N3Q1/1rBQbK2/5Rn1/1q1r1nN1 b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 axb5 g5 g4 gxf4 c4 e5 cxd5 Ba6 g5 Bc8 Bh3 e4 Bg4 hxg4 Ra3 Nf6 Rd3 Ng8 Rf3 exf3 Kf2 Kd7 d4 f5 h4 a5 e4 c5 b6 g3+ Ke1 c4 b5 f2+ Ke2 f1R d6 g2 g6 a4 e5 a3 h5 f3+ Ke3 a2 h6 a1B g7 f2 h7 c3 b7 c2 b6 Kc6 d7 Kb5 d5 f4+ Kf3 Nc6 b8Q Nd4+ Kg4 f3 b7 Qe7 e6 Nf5 d8N Bc3 Qf4 Ba5 Rh2 Ra7 Bd2 c1B Qc7 Nh4 Bc3 Bg5 Qd3+ Ka4 b8Q Rd1 Nd2 f1Q Nc6 f2 Nc4 Nh6+ Kg3 Qf6 g8Q Nf7 e7 Qe6 e8N Rb7 Qg7 Rb3 Nf6 Rg8 Na7 Nh8 Qgg6 Rg7 Qh5 Rf7 Qg4 N4g6 Kf3 Nf4 Ne2 g1B Rg2 Nhg6 h8N Qe1 Rh2 f1N Rg2 Bd4 Ng1 Be3 Re2 Ng2 Rf2 Rd7 Nf7 Nh8 Nfd6 Rf7 Qb1 Qd2 Qd3 Qb2 Ndb5 Qa1 Qe2 Qb1 Qd3
4r1b1/Q1q2nR1/1b5R/QQ1pNBq1/K1b1QPR1/6rn/Q1rR3r/n2k4 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 exf5 g4 Ra1 g3 f3 h5 Be3 Bh6 Bf2 Bg7 Kd2 gxf2 g4 Bf8 g5 Na6 Nc3 Rb8 Nd5 Ra8 Ne3 Nb8 Ng4 hxg4 c4 Kf7 Kc2 a5 Kb3 d5 h4 e5 g6+ Kf6 b6 d3 b7 g3 c5 e4 g7 Ke5 f6 Kd4 f7 Ke3 h5 g2 h6 d2 h7 Qc7 f4 Na6 b8Q Be6 c6 Nh6 g8R Nb4 Rg4 Bc5 f8R Nd3 Ra2 Bb6 Nf3 g1Q Ka4 Nf7 Qc2 d1R b4 Rd2 Bh3 Ke2 b5 f1B Qa7 e3 Ne5 Re8 Rfg8 Nf2 Qe4 Rc2 R8g7 Kd1 Rb2 Rhg8 h8Q e2 Qh4 e1R Qd8 Bc4 Qda8 Bc5 b6 Ree2 b7 Bb6 b8Q Red2 Rh2 Qg3 Qbb7 Qh4 Qba6 Qg5 Qb5 Re2 Rgg2 Red2 Bf5 Nh3 Rg3 Rg2 Rg4 Rh8 Qd8 Rg3 Ra2 Nh6 Qda8 Bg8 Rb2 Nf7 Ra2 Qb7 c7 Rh5 c8Q Qc7 Qca6 Rh6 Qb3 Rh5 Qab5 Rh4 Ka3 a4 Kb4 a3 Ka4 Rh5 Qaa5 Rh7 Q8a7 Rh8 Rb2 a2 Qa3 a1N Qa2 Ng1 Rh6 Rh7 Rhg6 Rhh2 Rc6 Nh3 Rh6 Rcc3 Re2 Rc2 Rd2+
2b1Q3/6N1/4NQPr/1B4br/NnQr1n2/qr3n2/kNp2Q2/2Nb1KbR b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b4 h6 Bb2 Qe7 Ra3 Qd8 Bf6 Rh7 Rf3 gxf3 g4 Be7 g5 Rh8 g6 Bf8 Bg5 hxg5 d4 Ke7 h4 Kd6 e4 a5 h5 c5 b6 f5 h6 a4 h7 g4 b7 g3 b5 c4 b6 c3 Qc1 f2+ Ke2 g2 Rh2 f3+ Kd3 c2 Qd1 f4 Qe2 a3 Nd2 a2 Rh1 Nc6 b8N a1R b7 R8a4 Na6 Nf6 Nc5 Rb1 b8Q+ Qc7 Qe3 Nh5 Qb4 Qe7 Ne2 g1B Nc1 Bh6 Qc4 Bg5 Be2 f1N Qf2 Rab4 Na4 Nh2 Bf1 Rb5 Be2 Rd8 h8Q R1b2 Qe8 R2b3+ Nc3 Qa7 Bf1 Qa3 e5+ Kc7 e6 Kb6 d6 Ka5 d5 Nb4+ Kd4 Rd7 Na4 Rh7 e7 Rh6 d7 Rc5 Qe3 f2 d8N f3 d6 Nf4 d7 Rb5 Be2 f1B Ne6 f2 Ke4 Nf3 d8Q+ Rb6 Qdd4 Rd6 Qf6 Rh5 Bd3 Be2 Qed4 f1R Qf2 Bd1 Ke3 Nh2 Qd7 Rd4 e8N Nf3 N8g7 Rh6 Qe8 Na2 Qc7+ Kb4 Nc4 Rh5 Nac5 Kc3 Nb2 Nb4 Bb5 Bh2 Qg1 Rf2 Qg3 Bg1 Qcc6 Rfh2+ Qf2 Rh6 Qc7 R2h5 Qcf7 Nbd3 Nca4+ Kb4 Nec5 Qa2 Qc4+ Ka3 Nce6 Nb4+ Nbd3 Ne5 Kd2 Qa1 Ke1 Nf3+ Kf1 Qb2 Ne2 Ka2 Nec1+ Ka1 Qd2 Qa3 Ndb2 Kb1 Qf2 Ka1 Ne2 Ka2 Nc1+
kBb1r3/bp5n/1q1q1BP1/Nr4Q1/KQnB4/2brr3/3Q2b1/QB3QR1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 a4 Bh6 g4 Bg7 Nc3 Bf8 Nce2 h6 Nf4 gxf4 g5 h5 Ra3 Kf7 Rg3 Ke8 Rg4 hxg4 h4 Kd7 d4 e5 Kd2 c5 Kc2 Kc7 Kb3 g3 a5 f3 f7 g2 d6+ Kc6 a6 c4+ Ka4 e4 g6 b3 d7 f2 f6 b2 a7 b1R h5 c3 h6 e3 d5+ Kc7 h7 c2 Bd3 f1B Nf3 g1Q Ne5 e2 Nc4 e1R Qd2 Bg7 f8Q Re3 f7 Bc3 Na5 Rb5 Qb4 Nc6 f8Q Bg2 Qf1 Nf6 d6+ Kb6 Bb2 c1B Bb1 Rhe8 h8B Nh7 Bf6 Ne5 Ba1 Rb8 a8Q Nc4 Be5 Qc7 d8B Rd3 Bef6 Ree3 d7 B1b2 Bde7 Qd6 Be5 Bd4 B7f6 Bbc3 Bg3 Qf2 Rg1 Kc7 Qa6 Ba7 Bf4 Ra8 d8Q+ Kb8 Bd4 Qf3 Qg5 Qc6 Bf6 Qb6 Qde2 Be1 Bad4 Bc3 Qd2 Bd7 Kb3 Qe5 Bh2 Kc7 Bf4 Re8 Nc6 Bc8 Bg3 Qf4 Qa1 Qe5 Na5 Kb8 Bf4 Ka8 Ka4 Qd5 Bc7 Qdd6 Bb8
bQRn1B2/n6r/2Qpp3/1P3R2/5KRr/b1Rq1b1r/1k3N1Q/R1r1n1Q1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 g6 exf5 Kf7 d4 cxd4 f6 Ke6 f7 Kd6 g4 Nf6 f5 Ng8 f6 Bh6 Nc3 Bg7 Bd3 Bf8 Bf5 gxf5 Ne4+ Kc7 g5 h5 Nf2 Kd6 Ng4 hxg4 Kf2 Ke5 Kg3 a5 c4 e6 b4 d3 h4 Kd4 h5 Kc3 h6 d2 b6 f4+ Kh2 g3+ Kg2 f3+ Kh3 g2 Kg4 a4 c5 a3 b5 f2 c6 f1R b7 a2 g6 Ba3 f8R Rf3 g7 Rh3 f7 Rh7 c7 Ne7 g8R Nec6 Kf4 Na7 Rg4 Nbc6 b8Q Bb7 c8R Rh4 Qf1 d1B Nh3 g1N Nf2 Nf3 Qg1 Ne1 Rh3+ Bf3 Be3 Kc2 Bc5 Kb2 Qd6 Rb8 Qd5 Ba8 Be7 Be2 Rc3 Bf3 Bb4 Rb7 Bc5 Rh8 h7 Rh3 Rfg8 Rc7 f8Q Rh4 Rg5 Rb7 Rd1 a1R Rf5 Rc1 Be7 d6 Qh6 Qe8 Bf8 Nd8 Qc6 Rh3 Qh4 Qg6 Qhg3 Re7 Q3h2 Rc7 Rfg5 Qd3 Rf5 Rg8 h8Q Rch7 Rb8 Rgg7 Rc8 R7h4 Qg8 Rgh7 Qh8 Rc2 Ra1 Rc1 Qd4 Rc2 Qdb6 Rc1 Qb8
2rn3K/4bk2/2QB3b/3Qnp1n/3q3q/RrQN2B1/p2P3B/1bbQB2B b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 axb5 g5 g4 gxf4 c4 e6 g5 e5 Ra3 Be7 Rg3 Bf8 Rg4 hxg4 cxd5 Nd7 Na3 Nb8 Nc2 e4 Nd4 Bh6 Ndf3 exf3 Bh3 Bg7 Bf1 Bf8 Kf2 f5 e4 a5 h4 c5 h5 c4 e5 a4 e6 c3 d6 a3 h6 a2 g6 c2 h7 Ba6 b6 Nd7 b7 Rc8 b8B Ne5 b5 Bh6 g7 Qc7 e7 Nf7 b6 Bb7 Ba3 c1B Ne2 Qc6 Bg2 Qc7 Rh3 Qc4 Bh1 Be4 b7 Nd8 d7+ Kf7 Bad6 Nf6 Bbc7 Re8 b8B Nh5 h8Q Bb1 Rg3 Ne6 d8B Qd4+ Kf1 f2 Kg2 f1N Ra3 g3 Kh3 f3 Nf4 f2 Nd3 g2 Bh2 g1B Bcd6 Qb6 Kh4 Ne3 Bdg3 f1Q Bbd6 Qa7 Be1 Ng4 B8c7 Bge3 Bdg3 Rf8 Bcd6 Qf4 g8Q+ Ke8 Ne5 Nd8 Nd3 Bc5 Qd5 Qaa4 Qc3 Qad4 Qg2 Kf7 e8Q+ Kg7 Qea4 Kf7 Qac6 Re8 Qgf3 Re3 Qfe4 Qf2 Qg2 Ne5+ Qge4 Bf8 Kg5 Be7+ Kh6 Bb6 Bf4 Qh4 Kh7 Bc5 Qef3 Bf8 Bfg3 Bh6 Kh8 Bb4 Bc7 Be7 Bd6 Qa4 Nf4 Bhf8 Qa1 Rb3 Qac3 Qd4 Nd3 Bh6 Qfd5+
R1Nrk2q/1n1NP3/N3p3/b3r2p/Qn1q4/QbB1b2N/4Q3/nK3QNn b - - 0 1 legal: proof: d4 b5 c4 e5 a4 g5 axb5 d5 cxd5 Na6 h4 gxh4 d6 Nb8 e4 Kd7 b4 Bg7 Bc4 Qf8 Be6+ Ke8 d5 Bh6 Ra2 Qe7 Rd2 Qd8 Rd4 exd4 e5 Bg7 Bf5 Bf8 e6 Bg7 e7 Bf8 Be6 fxe6 Qg4 Kd7 Qh5 Ba6 Qd1 Bc8 Nf3 h5 Kd2 a5 Kc2 c5 g4 c4 g5 a4 g6 c3 b6 a3 b5 a2 g7 a1B b7 h3 b6 h2 Nbd2 Ke8 d7+ Kf7 d6 Ra2+ Bb2 Na6 b8N Rh7 b7 Qc7 d8Q Bd7 Nc4 Nf6 Qe2 Nc5 Nb6 Rh8 Nc8 Ra5 g8N Nd5 Nf6 Bh6 Ng4 Bc6 d7 Qe5 Rf1 h1N Ng1 Qf6 f4 d3+ Kc1 c2 Nf2 Ba4 Nfh3 Rb5 Qa5 Qe5 Bd4 Bc3 d8Q Re8 Qdb6 Rd8 Qc6 Bb3 Nd7 Ke8 b8N Qh8 Qca8 Bb4 Bc3 d2+ Kb2 d1Q f5 Be3 f6 Qd2 Ra1 Qd4 Qc6 Nb7 Ra3 c1N Kb1 Bc4 Qa7 Nb3 Qac5 Bg5 Ra8 Na1 Na6 Be3 Q5d6 Ra5 Qa4 Bb3 Qc5 Rb5 Qd6 Ba5 Qda3 Kf7 Qec4 Nb4 Qe2 Kg6 f7 Re5 Qeb5 Kg7 f8Q+ Kg6 Qff1 Kg7 Qe1 Kf7 Qef1+ Ke8 Qbe2
6bB/1qP1qBn1/Qnr2Qp1/1p1QR3/N1B2Q2/BQ6/4k3/r1bqn1Kn b - - 0 1 illegal: No possible last move
6R1/3QR3/2b5/2rnN1np/Nq1k1bbr/N1N2P1R/KN1R1qrp/1rR5 b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 d6 e5 e4 f6 d4 Bh6 d5 Bg7 Be3 Bf8 Bd4 exd4 e5 f5 Bd3 Nd7 Bc2 Nb8 Be4 fxe4 Kd2 Kf7 Kc2 a5 Kb3 c5 g4 c4+ Ka2 h3 b4 c3 b6 a4 f3 c2 d7 c1R d6 Ke6 b7 Kd5 g5 d3 b5 e3 b6 e2 e6 e1Q e7 d2 e8N a3 g6 Qdh4 d8R Nc6 b8N Kd4 b7 Nce7 g7 Nd5 d7 Qef2 Nd6 Rc5 Nc4 Bd6 Re8 Bf4 d8R Nh6 g8R Nf7 Na6 Ng5 b8N Bg4 Nd7 h5 Qa4 d1B+ Re2 Rh6 Nde5 Rg6 Qd7 Ba4 Nb2 Bc6 Rde8 Rc8 Re7 Rc4 Nc5 h2 Nca4 Rc5 Rc2 Rb8 Rc1 Rb4 Ne2+ Ke3 Nec3 Kd4 Rhg1 Rbc4 Kb3 a2 Na3 Rg7 Rab1 a1R Rg3 Rg6 Rc2 Rg7 Rf1 Rb1 Ka2 Be6 Qb7 Bc1 Ncb5+ Ke3 Rge8 Nh7 Rh3 Rg2 Rg7 Ng5 Ree7 Qd4 Rg6 Qdd2 Rgg7 Rh4 Qd7 Qb4 Rg8 Bg4 Nbc3 Kd4 Re2 Be3 Rc1 Bf4 Rd2+
2B1k1rb/2q1B2n/Qr2q2N/2b1qPNB/q4NQK/r7/1B2q2B/1B3r2 b - - 0 1 legal: proof: d4 b5 b4 c5 a4 d5 axb5 f5 Ra6 Bb7 Re6 cxd4 e4 d3 Re5 d4 Re6 Bd5 exd5 Nh6 Re4 Ng8 g4 fxe4 h4 g5 f4 Qc7 f5 Bg7 Rh3 Bf8 Rf3 Qb6 Rf4 Qd8 h5 gxf4 g5 Nc6 Kf2 Ne5 Ke1 Ng6 hxg6 Bh6 Qd2 Bg7 Qd1 Bf8 Kf2 e5 c4 a5 d6 h5 b6 e3+ Kg2 a4 Kh3 d2 g7 d3 b7 e2 b8Q e1Q c5 f3 g6 e4 b5 e3 c6 e2 c7 h4 c8B a3 b6 a2 b7 a1B Qa7 f2 b8B Qc7 Nf3 Nf6 g8N Nh7 Nh6 Rg8 Ng5 Bh8 g7 Be7 Bg2 f1R Be4 Bf8 Kg4 h3 Nc3 h2 Bb2 h1R Nd5 Rh5 Qb7 Ra3 Qa6 Rh3 Bf3 Rb3 Be4 Rb6 Nf4 Re3 Bf3 Qg3+ Kh5 e1Q Be4 Be7 Qg4 d1Q Bf3 d2 d7+ Kd8 Be4 Bc5 Bb1 Ke7 d8B+ Ke8 Bdf6 Qa4 Be7 Qe5 Bc7 d1Q Bb8 Qde2 Bc7 Rf8 g8B Ra3 Bd5 Qgc3 Bf3 Rg8 Bb8 Qe6 Bbd6 Qec1 Kh4 Q1c2 Nd5 Qce4 Bh2 Q4e5 Nf4 Qc7 Qg3 Q3e5 Bh5+ Qg6 Qg4 Qf7 Ng6 Qfe6 Nf4+
KR2b2q/2Q1QN1P/3R1R2/brb1n1qQ/4N1pQ/3r1n1r/p3Q1Q1/2kn4 b - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 g5 a4 b5 axb5 e4 b3 e3 Qc2 exf2+ Kd1 Ba3 Bh3 Be7 Ba3 Bb4 Kc1 Bf8 Qd1 h6 Bd6 h5 Bf4 gxf4 g5 Na6 Bf5 Nb8 Bg4 hxg4 Kc2 Ke7 Kd3 Kd6 Kd4 f1R h4 f5 e4 a5 h5 f3 b6 f4 e5+ Kd7 b7 c6 h6 a4 h7 f2 e6+ Kd6 b4 f3 e7 a3 e8Q a2 b5 Nd7 b8R Ngf6 b6 Ra5 g6 Ne5 g7 Rb5 g8Q Ne4 b7 Bd7 Nc3 Qg5 Qh5 Be8 Qe2 Be7 d3 Nd2 Nh3 Rfb1 Qf8 R1b3 Rad1 f1N Qff7 f2 Qff3 Rg8 Qg2 Ne3 Rhf1 Ndf3+ Ke4 Kc5 d4+ Kb4 d6 Ka3 d7 c5 d8Q c4 d5 Bc5 d6 Rg6 d7 Rd6 Qe7 Rd3 Rd2 Nd1 d8Q Qg8 Ng5 Qh8 Rg1 f1Q Nf7 Qf2 Rf1 Qh4 Rf2 Qg5 Qdc7 Nd4 Kd5 Rh3 Qh4 Ndf3 Ne4 c3 Rd3 c2 Rd4 Nd2 Rf6 Kb2 Qh5 c1B Qh4 Nd7+ Kc6 Rbd3 Rdd6 Kb1 Qa5 Nf3 Kc7 Bd2 Kc8 Bd4 Qc7 Ba5 Qc5 Qg6 Qch5 Nde5 Ra8 Bc5 b8Q Rb6 Qbc7 Kc1 Rb8 Rb1 Qf8 Qg5 Qfe7 Bb4 Kb7 Ba5+ Ka8 Rb2 Nh6 Rb5 Nf7
Br2n3/K3RbqQ/Q1RR1B2/R1nn2b1/b6b/p1R1Qpq1/1Pr5/4R1k1 b - - 0 1 illegal: No possible last move
1N2r3/pk3P1b/1p3Qb1/3nr1Nq/N1NQQ1qN/N6p/1R3b2/1n2Rn1K b - - 0 1 legal: proof: e4 f5 exf5 g5 a4 b5 axb5 Nf6 h4 gxh4 b6 Ng8 b7 Na6 b8N Bg7 Nc6 Bh6 Nb8 Bf8 b4 d5 c4 Qd7 b5 Kd8 b6 Qc6 b7 Qd6 Ba3 Qd7 Bc5 Ke8 Bb6 cxb6 c5 Qd8 Bc4 dxc4 Kf1 h5 d4 e5 f4 h3 g4 e4 f6 e3 f5 c3 d5 h4 d6 c2 g5 c1Q g6 h2 Kg2 e2 g7 Qa3 c6 Qa5 c7 Nh6 g8Q Ng4 Nh3 Rh5 Ra2 Qd7 Qgd5 Nb4 Re1 Ne3+ Kh1 Nf1 Na3 Qda4 Na6 Kd7 Qe4 Nd5 f7 Kc6 b8N+ Kb7 d7 Bc5 f8N Bf2 f6 Re5 d8Q Bf5 c8N Bg6 f7 Qc4 Qf5 Qg4 Qdf6 Bh7 Qd4 Qc5 Rea1 e1N Rb2 Nf3 Qfe4 N3d2 Re1 Nb1 Ng5 Qb5 Ng6 Qbe2 Nce7 Qh5 Nf5 Qeg4 Nc6 Rh8 Ne3 Rhe8 Ncb8 Bg3 Kg2 h1B+ Kg1 h3 Nec4 Bf3 Nh4 Bd1 Kh1 Bc2 Qeg6 Bf2 Nc5+ Kc8 Na4 Kb7 Qgf5 Bd3 Qff4 Bdg6 Qfe4
Qb1N1B2/qq1B4/p3b2r/K2Bn1pb/B1rP1k1b/N7/2B1Qnp1/1Q3B2 b - - 0 1 illegal: No proof kernel
K1Q1Q1bn/Q2Q1q2/nrnNBr1k/2N2N2/3B1n2/N3b1PN/1br5/1q2b3 b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 g5 b4 d5 cxd5 g4 Ra3 Bf5 Rf3 Bc8 g3 gxf3 e3 h5 Be2 h4 Bf1 h3 Ne2 Qe7 Nec3 Bf5 Rg1 Na6 Ne4 Nb8 Rg2 hxg2 h4 Bc8 Nf2 Qd8 d4 g1B Kd2 f5 Kd3 Kf7 Kc4 Kg7 b6 c5 Kb5 a5 e4 a4 b7 a3 d6 a2 d7 a1B d5 c4 e5 c3 e6 c2 e7 Kh6 e8Q Ra6 d6 Qb6+ Kc4 Ne7 d8N Bb2 d7 Nec6 b5 Bb4 Kd5 Be1 Nh3 f2 Be3 c1N h5 Ne2 Bd4 f3 Ne6 f4 d8N Rf8 Kd6 Rf6 Na3 Qc7+ Kd5 Rb6 Ng7 Na6 b8Q Qf7+ Nde6 Bb7 Bg2 f1R Qbc8 f2 Be4 f3 Bf5 Nf4+ Kd6 Bbc3 Bg4 Ng6 Nf5+ Kh7 h6 Nh8 Kd5 Kg6 h7 Bb2 Nh4+ Kh6 Qd3 Qg6 Nc5 Ba8 Qd1 Qb1 Be6 Bb7 Qa8 Bc8 Qa7 Bd7 Qc8 Be8 Qa4 Bf7 Qad7 Bg8 Qce8 Nab8 Qaa7 Na6 Kd6 Ba5 Qec8 Rc1 Kd5 f1Q Nf5+ Kh5 Kd6 f2 Kd5 Be1 Kd6 Rb7 b6 Rc2 Kd5 Rb8 b7 Qc4+ Kd6 f1N Qce8+ Ng6 h8N Ne3 Nf7 Nd5 Qec8 Ndf4 Qce8 Nh8 Qec8 Nab4 Kc7 Be3 N7d6 Na6+ Kb6 Ra8 b8Q Qd5 Nh4 Kh6 Kb7 Qh5 Qce8 Qf7 Qbc7 Rc8 Qcb8 Rc7+ Ka8 Rb7 Qbc8 Rb6 Nhf5+
2qb4/K3BBbq/n4rRk/7B/2rQrR2/Q3P1rb/2nb1BB1/Q3Q2q b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 a4 c5 axb5 h6 d4 cxd4 Nh3 Bd6 Nc3 Bf8 Nf4 gxf4 Ne4 h5 g5 Qf6 Nf2 Qd8 Ng4 hxg4 Kf2 f5 h4 Kf7 c4 Kg6 b4 a5 c5 d5 c6 g3+ Kf3 d3 e6 a4 b6 d4 c7 a3 b7 d2 b5 d3 b6 a2 e7 g2 Kf2 f3 Ke3 f2 Ba3 g1B Bg2 Ra4 Qe1 Na6 b8Q d1R b7 d2 Qa7 Bg7 b8B Nf6 Qd4 Rc4 Ba7 Rg8 e8B+ Kh7 h5 f1Q+ Kd3 f4 g6+ Kh6 Rh4 f3 Be7 f2 Rf4 Bh3 c8Q Ng4 Qc5 Qc8 Qa3 Ne3 Ke4 Nc2 Kd5 Bf6 g7 Bh2 Rb1 a1B Rb6 Qh1 Bf7 Re8 g8B f1R Bg6 Bg7 B8f7 Bc3 Rbf6 Bb4 Qda1 Rb1 Bf2 d1Q+ Qd4 Rc1 e3 Qd3 Re6 Bd2 Ref6 Kg5 h6 Ra1 h7 Kh6 Kd6 Bg3 Re6 Bh4 Bh5+ Bhf6 h8Q+ Qh7 Qac5 Raa4 Qa3 Rg8 Kd5 Bf8 Rc6 Rg3 Qda1 Re4 Kd6 Bh4 Qhd4 Bg7 Rb6 Qcf5 Kc6 Rc4+ Kb7+ Qe6 Bd6 Bd8 Ka7 Qc8 Be7+ Rg6 Re6 Rf6 Bg1 Rf3 Bf2 Rg3 Re5 Qg8 Rg5 Qh7 Rg6+
2q1qr2/3BnR2/1b1Kn1Q1/BrR5/1R1pbQnQ/5q1P/2R2qk1/1Q4Rq b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 g4 Bb7 f5 Ba6 Nc3 Bc8 Nh3 h6 Nf4 gxf4 Ne4 h5 g5 Qb6 Nf2 Qd8 Ng4 hxg4 Kf2 Kf7 b4 a5 c4 e5 h3 d5 c5 e4 b6 f3 Kg3 d3 Kf4 d4 Ke5 f2 b5 g3 c6 d2 c7 g2 b7 g1Q b6 a4 Ba6 f1Q Bb2 e3 Bb5 a3 Qb1 d1N Qc1 a2 Rh2 e2 Bc3 Ne7 Bd7 e1Q+ Kd6 Nbc6 b8R Bb7 c8R Qgf2 Ba5 Rh5 Qf4 Ne3 Qh4 Ng4 Rc7 Qf3 Rc2 Qc8 Rb1 Nd8 R7c5 Bc6 b7 a1Q Rbc1 Ne6 g6+ Kg8 f7+ Kg7 f6+ Kh6 g7 Be4 g8Q Qf1f2 Rb1 Qeh1 Rg1 Qae1 Qh8+ Kg6 Qg3 Re5 Qhh4 Kf5 Qg2 Kf4 Qgg3+ Ke3 Qg2 Bh6 f8Q Bf4 f7 Bg5 Qfh6 Rf5 f8R Qee2 Rc6 Rb5 Rf7 Qee1 R2c5 Ke2 Qgg3 Bd2 Qhf4 Bc3 Bb6 Ba5 Bd8 Bb6 Qg2 Ba7 Ba5 Bb6 Qgg3 Ne5 Qg6 Ng4 Rg2 Kf1 Rc2 Q2g3 R6c5 Qe2 Rg1+ Kf2 Rf1+ Kg2 Rb1 Qgf2 Rb4 Qh8 Rg8 Rf8 b8Q Qc4 Rgg7 Qg8 Rff5 Qf7 Qb7 Qe8 Rff7 Bf5 Qbe4 Qc3 Qe1 Be4 Qb1 Qc4 Rg5 Qcc8 Rgc5 Ba7 Rg8 Bb6 Qb3 Kf1 Qgh7 Nf6 Rg3 Ng4 Qg6 Qd3 Qb1+ Qd1 Re3 Kg2 Re1 Qf3 Rg1+
4R2n/Q5rb/nQQkpRbq/n4b1Q/2RKP1Qq/r4R1N/3b3N/7q b - - 0 1 illegal: No possible last move, all moves rejected
1b1r1Bq1/4BP2/B4Q2/QRQBqq2/n4p1k/n4n2/1brnQK2/R4B1b b - - 0 1 illegal: No possible last move, all moves rejected
4Q1n1/2rqN3/kq2nR2/bR1nQ3/pQ3R2/Q2q4/K2Pb1Qp/2bR1r1N b - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 Nh6 axb5 Ng8 h4 g5 f4 e5 b3 exf4 h5 Bb4 Ra5 Be7 Ra1 Bf8 g4 Qd6 Ba3 Qf6 Bc5 Qd6 Bf2 Qd8 Bh4 gxh4 g5 Ne7 g6 Rg8 g7 Rh8 Bg2 Ng8 Be4 Nf6 Bd3 Ng8 Bg6 hxg6 e4 Kd7 e5 f5 d6 c5 b6 Kc6 b4 Kb7 h6 a5 h7 g5 e6 h3 d7 f3 b5 h2 e7 a4 e8Q g4 Qc1 f2+ Kd1 f1N Kc2 g3 Kb2 g2 Nc3 c4 Nb1 f4 Nh3 g1Q Ka2 f3 Nf2 c3 Qa3 c2 Nc3 c1B Nd5 Ne3 Ne7 Nd5 Rb1 Nc6 Rb4 Qg4 Rd1 Ra7 Nh1 f2 Rf4 f1Q Rf6 Qc7 d8R Nd4 Rf4 Qff3 Rd6 Qd3 Rh6 Qgd7 Rhf6 Nh6 g8Q Ne6 Qg2 Ng8 Nc6 Bb4 Ne7 Kb8 b7 Ba5 R4f5 Qb6 Rf4 Kc7 b8R Ba6 Qe2 Nh6 Qg2 Rf8 h8Q Ng8 Qhg7 Qb7 Q7g5 Kb6 Qe5 Rf7 Rc8 Qb8 Rc5 Kb7 b6 Bc4+ Qb3 Ka6 Rb5 Rc7 b7 Qa7 b8Q Qb6 Nf2 Qdd4 Nh1 Be2 Qa3 Qd3 Qg3 Rg7 Qh3 Rg1 Qg3 Rf1 Qg2 Ra7 Qbd6 Rc7 Qdb4
3bQ1B1/BRBK3p/2r1B1qP/1RR1B1pq/1r3rbn/7k/4qR1n/n4Q2 b - - 0 1 legal: proof: e4 b5 g4 c5 a4 d5 axb5 dxe4 b4 f6 bxc5 Bd7 g5 Bg4 g6 Bd7 Na3 Bc8 f4 Ba6 f5 Kd7 Nh3 Bc8 Ng5 Nc6 Nc4 Nb8 Nd6 Nh6 Ne8 fxg5 f6 Ng8 f7 Ke6 Nf6 gxf6 Ba3 Kd7 Bb2 Ke6 Bc1 Kd7 Kf2 Ke6 Ke3 Kf5 d4 a5 h4 e5 c4 a4 d5 a3 h5 a2 d6 Nd7 c6 Qb6+ c5 Nh6 g7 Rb8 g8Q Be7 f8R Bd8 Rb1 a1N c7 Qa6 Qd3 Kg4 c6 f5 b6 Nf6 d7 Rb7 Rb5 f4+ Kf2 f3 Ke3 f2 Bb2 Rb8 b7 Kg3 Bh3 f1R Be6 Rf4 Rb1 Kh2 Bc4 Kh3 Qg6 Rg8 Qe8 Rg6 Bg8 Qb6+ Bd4 Qa6 Ba7 Nf5+ Ke2+ e3 h6 e4 R1b3 Be7 d8B Nh4 R3b4 Bd7 c8B Ng4 c7 Nh2 Rf7 Bf5 Be6 Qd6 c8R Bg4+ Ke1 Qb6 Bc7 Bd8 Qd1 e2 Kd2 e3+ Kd3 e1Q Qb1 Qg3 Qf1+ Qg2 Be5 e2 Rcc5 e1Q Rb1 Rff6 Kd4 Qe2 Rf8 Rf3 Kd5 Rgf6 Bc7 Qd1+ Ke5 R3f4 R1b2 Qa6 Rf2 Qf3 Rf7 Qac6 Rd7 Qce4+ Kd6 Qg6 Re7 Qe2 Kd7 Qh5 Bf5 Rc6 Bfe6 Qc2 Rg7 Qcg6 Rf7 Rc8 b8B Rb6 Rbb2 Rbb4 Be5 Rc6 Bbc7 Rbe4 Rb7 Rb4 Rb2 Rbe4 R2b5 Rb4 Qc1 Qe2 Qe1 Rfe4 Rf2 Rf4 Qf1+
2R2QbQ/k2n4/3R3p/1Rr3r1/1p3b1r/1r1q1QQN/nN3nPr/QR4K1 b - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 c5 g5 hxg5 d6 cxd6 Ra6 Nc3 Ra7 Nb1 Ra8 e4 f6 d4 Be6 d5 Bg4 Bb2 Bc8 Bd4 exd4 e5 f5 Bd3 Na6 Bc2 Nb8 Be4 fxe4 Kf1 Kd7 f4 b5 a4 c5 g6 e3 f5 d3 f6 d2 a5 e2+ Kf2 e1R a6 b3 a7 b2 f7 c4 g7 c3 Qf3 d1R Qd3 b4 Ra5 c2 Qg3 c1N Nh3 Nf6 g8R Bh6 f8Q Bf4 Rb5 Re4 Nd2 b1R Nc4 Rb3 Nb2 Na2 Re1 h6 Kg1 Ng4 Qf6 Bb7 e6+ Kc8 e7 Nf2 e8Q Nd7 Qef8 Rb1 Rg6 Rg8 Qf5 Rb8 a8Q Rc1 Qe5 Rc5 Rb1 Bc6 Rf6 Rg5 Qec3 Bb7 Qcf3 Rd4 Qa6 Ra8 Qa5 Kb8 Qa3 Ra5 Qh8 Ne5 d7 Ka7 d6 Bd5 Qa4 Bg8 Re6 Qa8 d8Q Nd7 Qf8 Qe4 Re8 Qd3 Rc8 Be5 Qa3 Rh4 Qa4 Bf4 Qa3 Nb6 d7 Rgh5 d8R Nd7 Ng5 Rh2 Nh3 Rh4 Qa4 Nc3 Qa1 Na2 Re8 Rg5 Re6 Rc5 Rd6 Rg5 Rbb8 Rac5 Rb5
3Q1QK1/R1n5/pn2p1R1/1b3b2/1r3Nbb/qr1QQ3/NP4rQ/k1nR3R b - - 0 1 legal: proof: d4 b5 c4 e5 a4 g5 axb5 d5 cxd5 Na6 h4 gxh4 d6 Nb8 e4 Nc6 Bc4 Qe7 Be3 Kd7 Be6+ Kd8 d5 Nb8 Bd4 exd4 e5 Qf6 Bh3 Ke8 e6 Qd8 e7 Bb7 Ra2 Bc8 Be6 fxe6 Ra1 Kd7 Kd2 h5 Kd3 c5 Kc4 h3 e8R h2 g4 h4 f4 d3 f5 d2 f6 h3 b6 a6 g5 Qe7 f7 Nf6 g6 Rg8 Qf1 d1B b7 Bg4 Kd3 c4+ Kd4 c3 Ke5 c2 g7 c1N Ne2 Ra7 Rg1 h1R Ra2 h2 Ra1 Ra8 Rg3 Rg1 Qf2 h1B Rh3 Rg3 Qe3 Be4 Nf4 Bef5 Nc3 Rg2 Rh4 Rh8 Rh2 Rh4 g8R Bh6 f8Q Bg5 Rh1 Rh3 Qg1 Bh4 Na2 Rb3 Qe3 Rb4 Rg6 Ra7 Qh6 Rb3 Rf8 Ne8 Rf7 Nc7 Rh7 Ke8 Rhg7 Bd7 Rf7 Bb5 d7+ Kd8 Qg7 Qa3 Qf8+ Ne8 Re7 Kc7 d6+ Kc6 d8Q Nc7 d7 Rb4 Qf3+ Kc5 Qe3+ Kc4 Rh7 Bg3 Kf6 Bh4+ Kf7 Rb3 Kg8 Rb4 Qd2 Kb3 Qg5 Ra8 d8Q Nd7 b8Q Nb6 Qe3+ Kc2 Qgf6 Ra7 Qfd4 Rb7 Rb1 Nb3 Rbf1 Nc1 Rd1 Kb1 Qdd3+ Ka1 Rd7 Ncd5 Qbe5 Rb8 Rb7 Nc7 Ra7 Rc8 Qff6 Ncd5 Nh5 Rc3 Qff8 Nc7 Qh2 Rcb3 Nf4
1Bq1nbK1/qQB4Q/3rP3/Q1pB4/1RbQ2pr/B2n3R/1n3p1k/6bB b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 f3 Nh3 b6 Nc3 b5 axb5 h6 Nf4 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 Kf2 Kd7 d4 Kd6 h4 c5 b4 a5 e4 f5 h5 a4 g6 a3 b6 a2 g7 Qe8 e5+ Kd7 d6 Ke6 d5+ Kd7 b5 Qd8 h6 Ra6 b7 Nf6 g8B Nc6 b8Q Nb4 h7 Ne8 Rb1 a1B b6 Bc3 b7 Bd4+ Be3 Qb6 Rh3 Qa7 Bg2 Rc6 Bh1 Nd3+ Kg1 f2+ Kh2 f1Q Rb4 f3 Kg3 f2 Kh4 f4 Kh5 f3 Kg6 Qg2 Kf7 f1N Bc1 Ne3 Ba3 Nc4 Qa1 Bg1 Qd4 f2 Qa8 Rb6 b8B Ba6 Qb7+ Kd8 d7 Ncb2 Re3 Bc4 Rh3 Nf6 Qc3 Rd6 Qd4 Be7 Kg7 Qf3 Bf7 Qf5 Be6 Bf8+ Kf7 Rg8 h8Q Rg5 Qg7 Rh5 Qh7 Ne8+ Kg8 Rh6 Bf7 Rh4 Be6 Nc7 Bf7 Ke7 d8B+ Kd7 Qa6 Ne8 Bdc7 Ke7 Qb7 Qc8 e6 Ne5 Bg6+ Kf6 Bge4 Kg5 Beg2 Ned3 Be4 Rb6 d6 Kf4 d7+ Rd6 d8Q Rh5 Rh2 Kg3 Bd5 Rh3 Qdd7 Rh4 Qa4 Ba2 Qa5 Bc4 Rg2+ Kh3 Rg3+ Kh2 Rh3+
1q1Q2rB/Q3nb2/nq1bp2R/2pp1BqQ/b3B2B/1n6/2QPR3/3k1B1K b - - 0 1 legal: proof: c4 b5 h4 a5 a4 g5 axb5 gxh4 b4 a4 b6 Ba6 b5 Bc8 b7 Ra5 b6 Rb5 cxb5 e5 f4 Bc5 f5 Ne7 Nc3 Ng8 Nd5 Bf8 Nf4 exf4 e4 Qg5 e5 Qh6 e6 Qf6 Nh3 Qd8 e7 Nf6 Ng5 Ng8 Ne6 fxe6 Bc4 Kf7 Be2 Kf6 Bf1 Kf7 Kf2 Kf6 Kg1 Kg5 e8B c5 g4 h5 f6 d5 f7 f3 Ba3 Kf4 g5 h3 g6 f2+ Kh2 h4 g7 Bd7 Qc2 Kf3 Qh7 Ne7 g8B Na6 Bb2 a3 b8Q a2 b7 Qb6 Re1 a1N Qa7 Nb3 Qc2 Bc6 Bh7 Rg8 b8B Bd7 Bfd3 f1B Bh8 Be2 Bhf5 Kf2 Bc7 Bh5 Bf1 Qb8 b6 Ba4 Re5 Bg6 Be4 Ke1 b7 Bh5 Bd8 Bg6 Qa2 Kd1 Beb5 Bh5 Bbd3 Bg6 Kg1 h2+ Kg2 Ke1 Bf5+ Kd1 Re2 h3+ Kf3 Bg7 f8Q Bf7 Qe8 Be5 Bde4 Bd6 Kf2 Qc7 b8Q Qb6 Rg1 h1Q Rg6 h2 Rh6 Qg1+ Kf3 Nc8 Bh4 Ne7 Qbd8 Qg5 Kf2 h1Q Qb2 Qh3 Qc3 Bg3+ Kg1 Bh2+ Kh1 Qhg3 Qb2 Qgb8 Qa2 Bg6 Qf7 Bd6 Qh7 Bge8 Qg6 Bf7 Qh5 Bd7 Qb2 Ba4 Qc2#
2RR4/n1Q1rp2/4Q1b1/qRrQp1B1/1n1R1p2/1R2PQ1K/Bk4nn/r6r b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 b5 axb5 e6 g4 Ke7 f5 g6 f6+ Kd6 Nf3 Be7 fxe7 Qb6 Nh4 Qc7 Nc3 Qd8 Nf5+ gxf5 Ne4+ Kd5 g5 h5 Nf6+ Kd6 Ng4 hxg4 Kf2 Kc5 Kg3 Kb4 e8Q d5 c4 a5 h4 a4 h5 d3 h6 d2 c5 d4 c6 e5 g6 a3 c7 d3 g7 a2 b6 Na6 b7 Ra7 h7 Ne7 g8R Nc6 Rb1 a1R b8R+ Bb7 c8Q Qa5 Qcd8 Kc4 b4 Kc3 b5 Nab4 Kh4 g3 b6 g2 Qd5 g1N Qee6 Nf3+ Kh3 Nh2 Rgd8 Ba8 Bg2 Re7 b7 Na7 Rg1 Rhe8 h8R Rg8 Qf1 d1R Bg5 d2 Qff3+ Kc2 Bf1 f4 Rb3 Rdc1 Rg3 d1N Rd3 Rg6 Rd4 Kb2 Rbc8 Rcb1 b8Q Ne3 Qc7 Ng2 Rb8 Rc1 Rb5 Rc5 Rc8 Bb7 Rhd8 Rf6 e3 Rg6 Bc4 Rg8 Rg4 Rh8+ Rh4 Rh7 Ba2 Ba8 Rh6 Rh8 Qdd6 Be4 Qdd5 Bg6 Rd6 Rd8 Rdb6 Rd6 Rhh8 Rdc6 Rhf8 Rcc1 Rfe8 Rh1 Red8 Rc5 Ra6 Qb6 Ra3 Qa5 Rb3+
b1KbQ1b1/q4Rr1/P5kq/q1R3Q1/3r3Q/2RbB1B1/b2b2B1/1r3R1B b - - 0 1 legal: proof: c4 d5 cxd5 Kd7 e4 a5 b4 axb4 d6 Kc6 d7 Ra6 Nf3 Ra3 Ng1 Ra8 d4 Kd6 d5 Ke5 Bc4 Na6 Bd3 Nc5 Bf1 Na4 d6 Nb6 Bf4+ Kf6 Bc1 Nd5 exd5 Ra5 Nf3 Ra4 Ng1 Ra8 f3 g5 Be3 e5 Nc3 Kg6 Bc1 Nf6 f4 e4 Bd2 Ng4 Bc1 Ne5 fxe5 Ra4 Qf3 Ra7 Qd1 Ra8 g4 Rg8 Nce2 Rh8 Nf4+ gxf4 Nh3 h6 g5 h5 Nf2 Rb8 Ng4 hxg4 Bc4 Ra8 Be2 Rh6 Bf1 Rh8 Ke2 c5 a4 f5 h4 b5 e6 f3+ Ke3 f2 Kf4 e3 Ke5 b3 a5 c4 a6 f4 e7 b4 Ke6 c3 e8R g3 Qe1 g2 Re7 g1Q Rh3 b2 Bg2 f1B Rf7 e2 Be3 b1B Ra5 b3 Rc5 f3 Qf2 Kh5 g6 e1B g7 b2 g8B c2 Bh7 c1Q Be4 Qb6 Qd2 Bb7 d8R f2 Kd7 Bg7 Rdf8 Bc4 Bh1 f1R Beg2 Kg6 Qe2 Bf6 h5+ Kf5 h6 Kg6 h7 Bd8 Qf2 Qa5 Qh4 Rg8 h8B Bbd3 Be5 Bd2 Bg3 Rd1 Rf1 b1B R8f2 Ra7 Rf7 Ba8+ Kc8 Rg7 d7 Rb7 d6 Bb3 Bd5 B1a2 Bdg2 Bc7 d8Q Bb6 Qdh8 Bd8 d7 Rb5 R7f4 Bg8 Rf5 Rb1 Rf7 Be7 d8Q Bf6 Qe8 Bd8 Bd4 Qe3 Qee7 Qh6 Be3 Qb2 Qe8 Qbb6 Qf4 Qa7 Qfe5 Qg5 Qh4 Qh6 Qeg5+ Kh7 R1f5 Bdc4 Bef4 Be3 Be1 Rd4 Rg3 Bd2 Rc3 Bd3 Beg3 Rc4 Be3 Rd4 Qge7 Kg6 Rf1 Bc7 Qe5 Bd8 Qeg5+
n3Q3/2p2bKR/4N2R/1q2kP1q/Q3r2N/n1Qp2b1/5r1R/NQ2Rqn1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 gxh5 f5 exf5 Kd7 a4 Ke8 axb5 Bd7 Be2 Be6 Bf1 Bc8 b4 dxc4 b6 a6 b5 a5 d4 Be6 Bd2 Bc8 Bb4 axb4 Bd3 cxd3 Kd2 Kd7 Ke3 Kd6 Kf4 e6 h4 g6 h6 b3 d5 b2 f6 e5+ Kg5 e4 f4 e3 f5 e2 h5 e1N b7 Ra4 h7 Nh6 b6 Qd7 f7 Qe8 Kf6 g5 Nd2 b1Q Rh2 g4 Nb3 g3 Nf3 g2 Nh4 Be7+ Kg7 Be6 f8Q Nf7 h6 Ke5 d6 Nc2 d7 Na3 d8N Nd7 b8R Bd6 b7 g1Q+ Qg4 Qbf1 Re1+ Re4 Na1 Nb6 Rc8 Bb3 b8Q Qb5 Ne6 Ng5 Qe8 Nf3 Rd8 Qd4 Rd7 Ng1 Qd1 Bd5 Qa4 Na8 Rf7 Qdf2 Rd7 Qf3 Re7 Rf8 h8Q Qh5 h7 Rf6 Qb6 Rh6 Qb7 Qc5 Qb1 Qb5 Qc6 Bc4 Qhe8 Bb3 h8R Rg6+ Kf8 Rg2 Rh6 Rf2 Qcc1 Kd5 Qc3 Bg3 Reh7 Kd6 Nd4+ Be6 Kg7 Ke5 Qh8 Bf7 Ne6+ Kd5 Qe8 Kd6 Qca5 Ke5 Qc3+
nk1KB3/3QB3/b3Qr2/1Q4R1/nnr4R/1p1R3Q/PB1p1rr1/rRb5 b - - 0 1 legal: proof: d4 c5 dxc5 a5 c4 f5 e4 a4 exf5 a3 Bd2 axb2 Na3 Kf7 Rc1 Nf6 Rc3 Ke8 Nc2 Ng8 g4 b1R f4 h5 f6 Rb2 g5 Rb5 f5 Qc7 Ne3 Kd8 Ng4 hxg4 Ne2 Qb6 f7 Qf6 gxf6 Rb1 Nf4 Ra1 Ng6 Rh4 Nh8 Rxh8 Kf2 Kc7 Ke3 g5 Kd4 b5 Kd5 e5 h4 g3 c6 g2 c5 g1R h5 e4 h6 e3 h7 g4 Rb3 b4 Ba6 e2 Bb5 e1R Rd3 g3 Bc3 g2 Bb2 Bh6 f8B b3 f7 Ra6 f6 Re2 Be7 Rf2 f8R Bc1 f7 Nf6+ Ke5 d5 Rg8 d4 f8Q Ra4 Qe8 Nd5 Rg5 Ba6 Ke6 Rhf8 h8R Nd7 R8h4 N7b6 Qf3 Rb4 Qh3 Na8 Qh5 Kc8 c7 Rc4 Be8 Nb4 Kd6+ Kb7 Kd7 R8f6 c8Q+ Ka7 Qd8 Kb7 c6+ Ka7 Rc3 d3 c7 d2 Qe6 Kb7 c8Q+ Ka7 Qc5+ Kb7 Qcf5 Ka7 Qda5 Kb8 Qa4 Rgf1 Qhh7 g1N Rd3 Rg2 Kd8 Rff2 Qad7 Ne2 Rf1 Nc3 Qfb5+ Bb7 Qhf5 Na4 Qh3 Rc3 Rd6 Rc4 Be5 Ba3 Rb1 Bc1 Bd4 Rc5 Bb2 Rc4 Qa6 Bc8 Rd3 Bb7 Qa5 Ba6 Qab5+
n2n2Q1/2pb4/b3k3/pRQ4R/p1R5/NQ2KP1r/nR2b1rN/3Q1N1b b - - 0 1 legal: proof: c4 b5 b4 g5 a4 bxa4 h4 Nf6 hxg5 Ng4 b5 Nh6 Ba3 Ng8 Bd6 exd6 b6 Qf6 e4 Qb2 d4 f5 e5 Na6 e6 Nb8 Bd3 Bg7 Be4 Be5 dxe5 Qb5 cxb5 fxe4 Kd2 Ke7 g4 h5 g6 a5 g7 e3+ Kd3 h4 g5 e2 b7 e1N+ Kd2 d5 g6 d4 b6 d5 f3 h3 Ne2 d3 Ng3 h2 Na3 d4 Rc1 Nc2 Nf1 Nh6 g8Q Bd7 g7 Nb4 Rc4 Na2 Qf7+ Kd8 Qh5 Ke7 g8Q Nf7 Qb3 Nd8 Qg1 Nbc6 b8R Ncb4 b7 Nd5 Qf5 Rh3 Qfg5+ Ke8 e7 Kf7 e8N Nb6 Nf6 Ke6 Ng4 Ra6 Q5e3 Na8 Qe1 Rb6 Qed1 Rb4 Rc8 Rb6 b8R Rc6 Rb5 Rb6 Ke1 d2+ Ke2 d3+ Ke3 Rb7 Rb8 Rb6 Qe1 d1B Qgf2 Bc2 Qd1 d2 Qg1 Bd3 Qf2 Ke7 e6 Kd6 e7 Ke6 Qh4 Rc6 Qg5 Rc5 Qh5 Rg5 R8b7 Rg7 Qc5 Rg6 Rg1 h1B Ngh2 Rg7 Rg5 Be2 Rh5 Rg2 Qdb1 d1B e8Q+ Kf6 Qef8+ Ke6 Rb8 Bc2 Qd1 Be4 Qbd3 Bb7 Qg8+ Kf6 Rb2 Bbc8 R8b5 Ba6 Qg7+ Ke6 Q3b3 Rgg3 Qgf8 Rg2 Qg8+
bbbR1QR1/6q1/4Q2B/1q1P2rq/1n1n2BB/2QbKQ2/n3Br2/k4b1R b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 f3 Nh3 b6 Nc3 b5 axb5 h6 Nf4 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 Kf2 Kd7 b4 Kd6 d4 f5 e4 a5 h4 c5 h5 a4 h6 c4 g6 g3+ Ke1 c3 h7 g2 Kf2 g1Q+ Ke1 c2 Kd2 f2 b6 f3 g7 a3 b5 a2 b7 f4 b6 Qd7 Bc4 f1B Bb2 c1N Rh6+ Qg6 Qb3 f2 Qd3 f3 Ke3 Ne7 g8Q Bg2 Rh1 Na6 b8R f1B b7 f2 Rb1 a1Q e5+ Kc7 e6 Kb6 d6 Ka5 Qd1 Kb4 Be2 Na2 Bc1+ Kc3 Qf7 Qe8 d7 Nc6 d8B Rg8 h8Q Qh5 e7 Rg5 Qe6 Na6b4 Rb2 Raa5 Rd2 Raf5 Qhf6 Qd7 e8B Bd6 Qf8 Qg7 Bd7 Qb1 Ra8 Bd5 b8Q Rf4 Qa7 Bb8 Qa5 Be4 Bf6 Bd3 Be7 Bg2 Qc7 f1B Bf6 Rc5 Bh4 Rf2 Qg3 Bge4 Qgf3 Qb3 Qe1 Rg5 Rd1+ Kc2 Qc3+ Kb1 Rd2 Qb2 Rd1 Ka1 Rd2 Bda6 d5 Bab7 Rd4 Bd3 Rg4 Nd4 Rg3 Be5 Rb8 Ba8 Rg2 Bca6 Rd8 Bc8 Rg4 Bb8 Rgg1 Rf5 Rg6 Rg5 Bd2 Qf7 Rg8 Qg7 Qec6 Na6 Bg4 Rf5 Qcd6 Re5+ Kf4 Rf5+ Kg3 Re5 Bh6 Rg5 Kf4 Rf5+ Ke3 Rg5 Qcc7 Qb5 Qe6 N6b4 Qc3+
k2nrr2/1b1R1Q2/2b1BQ2/br1qB3/1Q3K1n/P2R3r/RB2Q3/1q1Br2r b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 Be6 f5 Bd7 Nc3 Bc8 Nce2 h6 Nf4 gxf4 Nf3 h5 g5 Kf7 Ne5+ Ke8 Ng4 hxg4 Ke2 Kd7 d4 e5 h4 b5 h5 c5 h6 Kc7 d6+ Kb7 d7 c4 f7 e4 d5 c3 h7 c2 f6 g3 d6 g2 g6 g1R g7 f3+ Ke3 f2 a3 b3 Rh5 b2 Rc5 b1Q Qe2 b4 Qh5 b3 Bg2 f1R Rc4 b2 Rc3 Nh6 g8B Nc6 Qf3 Nf5+ Kf4 e3 Qf2 e2 Ra2 e1R Bf3 Rg5 Qe2 Nh4 Rd3 Bh6 f8Q Rb5+ Kg4 Rb8 Be6 Bd2 f7 Ba5 Kf4 Ka8 Qe7 Rf2 f8Q Bb7 Qff7 Rh2 Bfg4 Rf8 h8B Rh3 Be5 Rc8 Qf1 Rb8 Bd1 Re8 Qe2 Rf8 Bd2 c1R Bdc3 Reh1 Bc2 Rce1 Bd1 Qc2 Qef6 b1B Bb2 Qb3 Q6e7 Qd5 Qef6 Qb6 d8Q Re8 Qdc7 Nd8 d7 Bc2 Qc8 Ba4 Qc4 Qg1 Qb4 Qg6 Rg3 Qb1 Rg7 Rc5 Rg3 Bac6 Rd3 Rb5 Qfh5 Nf7 d8R Rf8 Rd7 Rbe8 Qh7 Nd8 Qhf7
Nb4Qq/1RRr1QQ1/1P2rnn1/3k1b2/q7/4p1nN/n2nRR1K/2N2Qr1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Bb7 b3 Bc8 Bh3 Bb7 Bb2 Bc8 f5 h6 Be5 h5 Bf4 gxf4 g5 Nh6 Bg4 hxg4 Ra4 Ng8 Ra3 Rh6 Ra1 Rh8 Kf2 Kd7 Kg2 Kd6 d4 c5 h4 a5 h5 e5 h6 c4 g6 a4 f6 f3+ Kh2 c3 b4 a3 g7 e3 b6 c2 b7 c1N f7 e4 b5 e2 h7 e1R b6 a2 Nd2 e3 Nb3 f2 Nh3 Ra7 Rf1 Nc6 b8R Be7 f8Q Rd7 Qf7 Nf6 g8Q Ne5 Rb7 Ng6 Qgg7 Rg8 h8R Re8 Rh7 Bf8 Rb1 a1Q Rb2 Qa4 Re2 Na2 Nc1 Re6 Qd3 Be7 Qb1 Qh8 Qf5 Bd8 Qd3 Rde7 Qb1 Bc7 Qa1 Kd7+ d6 Kc6 d5+ Kc5 Qb1 Bb8 Qa1 Rc7 d7 Kd6 d8N Rd7 Qb1 Kc5+ d6 g3+ Kh1 g2+ Kh2 g1N Qf5+ Re5 Ne6+ Kc4 Nc7+ Re6 Na8 Nf3+ Kg3 Nd2 Kh2 Kd4 Qb1 Kd5 Qa1 Rc7 d7 Rd1 d8Q+ Rd7+ Rc7 Re1 Qdg8 Rd1 Rg1 Re1 Rg2 f1N+ Kh1 Ng3+ Kh2 Rg1 Rgf2 Ba6 Qb1 Bd3 Qb5+ Kd6 Qc4 Bf5 Qf4+ Kd5 Qf3+ Ke5 Qg2 Kd6 Qf1 Kd5 Rb7 Nb1 Rh4 Nd2 Rc4 Qb3 Rc8 Qa4 Rcc7
1QB4N/3r2b1/bK2Q3/1n3bQ1/N2P1qq1/r1k2qB1/1Nnp1BQ1/N3b1r1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 a4 gxh4 axb5 f5 exf5 c4 b4 d5 g4 Qc7 Rh3 Qd8 Rd3 Na6 c3 Nb8 Ra2 Nd7 Rc2 cxd3 c4 Nb8 c5 Nc6 Rc3 Nb8 Rc4 dxc4 Kd2 Kf7 Kc3 Kf6 f4 e5 c6 a5 b6 h5 c7 h3 b5 h2 b7 h1Q b6 h4 Na3 a4 Qf3 e4 Ne2 e3 Qg2 h3 Nc2 a3 Na1 Bg7 Kb4 h2 Kc5 a2 Nc3 e2 Nd1 e1B Be3 c3 Bf2 c2 Nb2 Nc6 b8Q Ba6 c8Q Qd7 b7 c1Q+ Kb6 Rh7 g5+ Ke7 g6 Nf6 Be2 Na7 Bg4 Nb5 Bh3 Ng4 f6+ Ke6 f7 Qe3 f8N+ Kf5 Qe8 d2 Ne6 Qf3 Qf7+ Ke4 f5 Ne3 f6 Qf1 Qe7 h1B f7 Nc2 f8N Kd5 Nc5 Qg4 Qe3 Bf6 Qe2 Rd7 g7 Be5 Ng6 Bf6 Nab3 a1R Nh8 Rc1 Na1 Rd1 Nbd3 Kc4 g8Q+ Kc3 Qg5 Bg7 Qe6 Ra7 Nb2 Qff4 Qg1 Be4 Qg2 Bg6 Qa8 Bf5 b8B Rc1 Be5 Qfe2 Qb8 Qef3 Bd6 Bb7 Be5 Ra3 Bc7 Ba6 Bd6 Q4e4 Bdg3 Qef4 Qg1 Rd5 Qed6 Be6 Nc4 Qgf5 Be3 Bf2 Qg2 Rg1 Nb2 Be1 Bef2 Bd7 Qh4 Q5h5 Qg5 Bdc8 Bf5 Qhg4 Qc6 Bcb7 Bc8 Rd7 Qcg6 Be4 Qe6 Bf5 Nca4+
b4R1R/1pkQn1n1/R3bQ2/P1b2qQ1/1b1pr1B1/7B/rb1B1Q1K/r2R4 b - - 0 1 illegal: Other
2nb3N/pr6/1nb1p1B1/Q1B1P1qN/2r2pNQ/K4Q1B/4r2q/2NkQ2n b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 c5 a4 g5 axb5 gxf4 b4 Nf6 b6 Ng8 g4 h5 h4 Rh6 b5 Bg7 g5 Rh8 Ra4 Bh6 Rb4 cxb4 Rh2 Bg7 Rg2 Bf8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 Kc2 f5 Kb3 f3 e4 g3 h5 f4 e5+ Kd7 h6 e6 b7 f2 h7 g2 d6 Ne7 g6 Nd5 g7 Nc7 g8B Qf6 b6 Kc6 d5+ Kc5 d7 Nc6 b8N Qf5 d8Q Ne7 b7 Bd7 d6 Bc6 d7 Nc8 Nf3 g1Q Ba3 Qh2 Qh4 Be7 d8Q Qg5 Qe1 Nd5 Bh3 f1N Nbd2 Ng3 Bf7 Nh1 Bg6 Ndb6 Nd7+ Kd5 Kb2 b3 b8Q Bf6 Qdc7 Bd8 Bc5 Rg8 Ka3 b2 h8N b1R Nb3 Kc4 Nf6 Rg7 Qg4 Rb2 Qgh4 Re2 Qbb7 Rb8 Qa8 Rb7 Nh5 Rd7 Nc1 Rd4 Qd6 Rde4 Qdd2 Rd4 Qa5 Rde4 Na2 Kd3 Nc1+ Kc2 Bd6 Qhg1 Nh2 Qf2 Ng4 Qh2 Qef2 Kd1 Bc5 Rc4 Qf3 Re7 Qb7 Rc7 Qba6 Rf7 Qac3 Rg7 Qaa5 Rb7 Qce1#
N1n1q1r1/4NQ1k/QpP2b2/1Rp1QNR1/2r1pK2/R5n1/4r3/NR1r1b1n b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c5 b4 axb4 Bg2 c4 Bc6 Rh6 Ba4 Rh8 Bb3 cxb3 c4 d6 c5 Qa5 c6 Qc7 Bb2 Qd7 Bd4 Qd8 Bc5 dxc5 Ke2 Kf7 Kf3 g5 a4 Kg7 d4 e5 h4 b2 h6+ Kh7 d5 b3 h5 Qf6 a5 Qg7 a6 Qc7 d6 Qd8 d7 Nf6 a7 Qc7 d8R Qd7 Qf1 Kg8 h7+ Kg7 Na3 b1N Nc2 b2 Ne2 Be7 Ng3 Rg8 h8N Ne4 Ng6 Qe8 Rd5 Nbc3 f6+ Kh6 f7 b1R Qc4 Rb2 Rhb1 Nd7 Ra3 Ne2 Na1 g4+ Ke3 Bg5+ f4 Nf2 Ne7 Nb6 Qb5 Rb8 a8N Nh1 Qa6 Be6 Ke4 Nc8 Ke3 Kg7 f8Q+ Kh8 h6 e4 h7 Bf7 Rd2 Bc4 Rc2 Rb4 Rcb2 Bd3 Qf5 Rc4 Qd5 Kg7 h8R Bh4 Rh6 Bg5 Rg6+ Kh7 Qe5 Bh4 Nh5 g3 f5 g2 f6 g1R f7 Neg3 f8Q Bf6 Rg5 Rd1 Kf4 Bf1 Ng7 Rc2 Qa4 Rg2 Ngf5 Re2 Nb6 Ra8 Rb5 Ra5 Na8 b6 Nh4 Ra7 Nhf5 Rad7 Qa5 R7d4 Qa6 Rc4 Qf7+
1N2k1q1/4N1R1/PR3Npb/KQbpQ1Q1/nr1N2p1/3R3r/b1Rb4/5nr1 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 h5 g4 f5 exf5 hxg4 Ba3 d4 Bb2 Be6 Bc1 Bc8 c4 c6 Bg2 Qd7 Bb2 Nf6 Bd5 Qc7 Bc3 dxc3 d4 Qd6 Bg8 Qc7 d5 Qd8 Be6 Ng8 d6 Rh3 Bd5 cxd5 Qc2 Rh7 Qd1 Rh8 a4 b5 f4 e5 h4 b4 d7+ Ke7 a6 c2 Kd2 g6 f6+ Kf7 a5 e4 c5 b3 Kc3 c1B Kb4 b2 h5 e3 f5 e2 h6 e1B+ Nd2 b1R+ Qb3 Qc7 d8Q Bg3 h7 Rb2 a7 Bgd6 a6 Bf4 Ne2 B4h6 Nc4 Bd6 Nb6 Qb7 Ka5 Be5 c6 Rb1 c7 Bg3 Nd7 Bh2 Qb5 Bg1 Rh3 Bcf4 Ra2 Bd6 Nd4 Bge3 Rc2 Bd2+ Rhc3 Rb4 Rf3 Ne7 Rd3 Re8 h8Q Rf8 Nf3 Bc5 Nd4 Bhg5 Qh2 Bh6 Qe5 Qc6 Rcc3 Qe6 Rc2 Bb7 c8N Bc6 Qbb6 Ba4 Qb5 Ng8 Ne7 Bb3 Qdc7 Re8 Qe3 Bc4 Qg5 Ba2 Qcf4 Rf8 Qe5 Ke8 f7+ Kd8 Qge3 Nf6 Qg5 Nh5 f6 Rh8 f8N Ng3 f7 Nf1 Nh7 Re8 f8R Qg8 Rf7 Rf8 Rf6 Ke8 Rb6 Rf3 Nhf8 Rg3 Nfe6 Rg1 Ndc6 Bc1 Ned4 Bd2 Nf8 Nd7 Nb8 Kf7 Rb7 Nb6 Nfd7 Na4 Rb6 Bc3 Nbc6 Re8 a8R Bd2 Ncb8 Rf8 Ra7 Ke8 Rab7 Rf3 Rf6 Nb2 Rbb6 Na4 Rf7 Rfg3 Rg7 Rh3 Nf6+
bKn2Q2/8/Npp4b/rp1P1prB/2p2kN1/2n1BB1Q/qQ3p2/NN4Q1 b - - 0 1 illegal: No proof kernel
1N1b1n2/K4R1N/6RR/1Rp1n1N1/1nQrN1k1/4R3/b1qP1q1r/Rbb5 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 axb5 f5 cxd5 a4 exf5 a3 b6 a2 Ba3 Rxa3 b5 Ra5 Be2 Ra8 Bh5+ Kd7 Be8+ Kxe8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 e5+ d6 h5 g4 e4 b7 h3 f6 h4 f7 h2 f3 e3 b6 e2 Qe1 h3 Qc1 e1B Qc4 Be6 Nc3 Ne7 d7 Qc8 d8R Nbc6 b8R Ne5 b7 Bh4 Re8 Ra4 Ne4+ Kf4 g5 N7g6+ Kb5 Ba3 f8N Bc1 Nh7 Nf8 g6 Bd8 g7 Kf5 f4 Kg4 f5 c5 Qc2 Rd4 Ka6 Bb3 f6 Qf5 f7 Qf2 Nf3 Be6 Rf1 h1Q Ka7 h2 Qc4 Qhg1 Re1 h1B Re3 Qd1 Nfg5 Qc2 g8R Bf3 Rg6 Bf5 Rb1 a1N Ree6 Be2 Ra6 Bd3 Ra8 Be6 b8N Bd5 Rb5 Be6 Qa4 Ba2 Rac6 Nb3 Rcf6 Na5 Qc4 Nac6+ Ka6 Nb4+ Ka7 Qc3 Rh6 Bdb1 Rfg6 Nfd7 f8R Qc2 Rf7 Nf8 Re6 Rg8 Rd6 Rg6 Re6 Rf6 Rd6 Rf3 Rdg6 Rh3 Kb7 Rh2 Raa6 Bb3 Ra1 B3a2 Ka7
n1r1R3/7R/1R1PB1B1/p5rr/1r3kn1/1nRKb3/bBp1r1q1/2RQBR2 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 f3 Nh3 b6 Nc3 b5 axb5 h6 Nf4 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 Qc2 Ke7 h4 Kd6 b4 Ke5 e4 c5 h5 f5 g6 a5 g7 f2+ Ke2 g3 b6 g2 b7 g1R b5 c4 h6 c3 h7 Na6 b8R Be6 b6 Nc7 b7 Qg5 Bb2 Nh6 g8B Bc5 Rc8 Be3 b8R Qg3 Bh3 f1N Rc1 Bf7 d3 Nd2 Rb6 Be6 Bf7 Qg7 d6 Ba2 d7 Nb3 Rd8 Rc8 Qd1 Na8 Bg4 Qg5 Bgh5 Qg3 Bhg6 Qh3 Bd5 Rg5 Rg1 Ng4 Bc4 Rc5 Rc8 Rh5 Rc7 Rc8 d8B Rd5 Bh4 Qg2+ Bf2 Rd4 Bcf7 c2 Rc3 Rb4 h8R f3+ Ke1 f4 Rh7 Bb1 Bg3 f2+ Ke2 Ba2 Bg8 Rc5 Re1 f1R+ Bf2 Kd4 e5 Rcb5 e6 Rbg5 e7 Ke5 B6f7 Kf5 d4 Ke4 d5 Ke5 d6 f3+ Kd3 Rfh1 Bh4 f2 Re2 f1R Bg6 Rf8 Be6 Rc8 e8R Re1 Rf2 Re2 Rff8 Na1 Rf1 Nb3 Bf2 Kf4 Be1+
Rn1k3R/7R/1K1B2r1/R4Rnb/N1P2qr1/pB4q1/2RqpnB1/1q2bB2 b - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 g5 hxg5 f5 d4 exd4 e5 c4 Qd3 cxd3 Nd2 Kf7 Ne4 fxe4 Ra4 Ke7 Ra1 Ke8 Kd2 d5 b4 a5 g4 h5 f4 a4 f5 h4 g6 h3 g5 h2 e6 Nf6 b6 Qd7 b7 Qc6 b5 Ng8 g7 Qb6 f6 Bc5 g6 Ra6 e7 Bg4 Ne2 Rh4 Nc3 Bh5 Ba3 Nh6 g8B Bb4 g7 Qc7 b6 Rg4 f7+ Kd7 e8R Qg3 f8R Nf7 Re5 Ng5 Rf2 Kd8 Ref5 Ba5 Bf8 e3+ Ke1 d2+ Ke2 d1N Kd3 Qf4 Bh7 Bb4 g8B Ba5 Rd2 e2 Bg6 Bb4 Be8 Ba5 Bc6 Bb4 Ra2 a3 Na4 Bc3 Rb2 Ba5 Rb5 Bb4 Ra5 Bc3 Rg1 h1Q Be6 Qg2 Rh1 Bb4 c3 Qgf2 Rc2 Qg1 c4 Be1 Bed7 Bf7 Rh7 Bh5 Nc3 Qg2 Ba4 Qgh2 Bdc6 Qh4 Bb3 Qhf2 Rd2 Q2h2 Na4 Nf2+ Kc2 d3+ Kc3 d4+ Kb4 Qg1 Kb5 Qgg3 Rc2 d2 Bcg2 d1Q Kc5 d3 Kb5 d2 Kc5 Qb1 Kb5 Nc6 Kc5 Bf7 b8R+ Kd7 b7 d1Q Re8 Qdd2 Ra8 Nb8 Kb5 Rg6 Kc5 Nc6 b8R Kc7 Re8 Kd7 Kb6 Nb8+ Re6 Kd8 Ref6 Rg7 Rfh6 Bh5 Rh8 Rg8 R6h7 Rg6+ Bd6+
b2N4/1NN2kbp/3Rqnp1/2q2n2/r5bN/r3P3/1nNRRRK1/n1QN4 b - - 0 1 legal: proof: d4 b5 c4 e5 a4 g5 axb5 d5 cxd5 Na6 h4 gxh4 d6 Nb8 g4 Nf6 g5 Be7 g6 Ng4 d5 Nd7 g7 Ngf6 Bh3 Bf8 Bf5 Ng8 Be3 Nb8 Bg6 fxg6 Bd4 exd4 Kf1 c5 b4 a5 f4 a4 b6 a3 e3 a2 b5 d3 b7 c4 b6 d2 d7+ Kf7 d6 c3 f5 h3 f6 c2 Qc1 d1N Nf3 h2 Kg2 Be7 Nc3 Qc7 d8N+ Ke8 f7+ Kd7 f8R Ra5 Nh4 Nh6 g8R Qc5 Re1 Nb2 Re2 Nf5 Nd1 Ra3 Rf6 Qc4 Rgf8 Qe6 R8f7 Ke8 Rd2 Nc6 b8N Ne5 b7 Bf8 Na6 Ng4 b8N Bg7 Nb4 Ra4 Rb1 a1N Nb7 Rf8 N8a6 h1B+ Kg1 Bd5 Rd7 Rf7 Nc7+ Kf8 Re2 Kg8 Rd2 Re7 Rf7 Nf6 Rd8+ Re8 d7 Bf3 Re2 Bg4 Kg2 Ra3 Qd2 c1Q Qe1 Qcc4 Nc2 Qc5 Qd2 Rf8 Qc1 Ra4 Re8 Ra3 d8N Bd7 Ree7 Ba4 Rd7 Bc6+ Rd5 Re8 Rd7 Kf8 Rd6 Ke7 Nf7 Rea8 Nfd8 R8a4 Rf2 Nd3 Rb3 Nb2 Rd3 Kf8 Rdd2 Kg8 Rde2 Kf8 Na5 Ba8 Nab7 Kg8 Rdd2 Kf8 Nc6 Kf7 Ncd8+
3R1K1n/1p1b4/1NRp1k2/pb1Q2r1/2Rb2b1/r1RP4/bN4R1/RN1N2qq b - - 0 1 illegal: No proof kernel
1b4K1/2nkpRBp/1q4r1/R1r2pp1/2nBP1R1/B6p/5q2/B1B1RBqQ b - - 0 1 illegal: Other
nN1N4/N1q4n/nr2P1K1/1Q1p4/1pq1kNN1/5RR1/4r1NN/N2nb1n1 b - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 g5 a4 c5 d4 a5 dxc5 h5 g4 Ba6 Bf4 gxf4 g5 axb4 Bg2 b3 Bh3 b4 Bg4 Bb5 axb5 hxg4 Kd2 Ke7 Kd3 Ke6 Ke4 b2 c4 f6 h4 f3 b6 d6 b7 f2 h5 f1N g6 g3 h6 g2 c6 Qc8 c5 Ra5 g7 Rb5 c7 Na6 b8N Qd7 c8N Ra5 h7 Nh6 g8N Bg7 c6 Ne3 c7 Qd8 Qd3 Qe7 Nh3 g1N Ra3 Qd8 Nf4+ Kf7 e6+ Ke8 e7 Kf7 e8N Rb5 Rh3 Nd1 Nb6 Ng4 c8N d5+ Kf5 Qc7 Nd2 b1N e4 Nbc3 e5 Na4 Nbc4 Nb6 Ne3 Na8 Na7 Rb6 Nh6+ Ke7 Kg6 f5+ e6 Bc3 Qf1 Nf6 Nb3 Be1 Neg2 Rf8 h8N Nh7 Nf6 Kd6 Qc4 Ke5 Qb5 Rc8 Nfg4+ Ke4 N8f7 Rh8 Ne2 f4 Nh2 f3 Nd8 f2 N6g4 f1Q Nef4 Qfc4 Na1 Rf8 Rag3 Rf7 Nd3 Rf2 Ndf4 Rb2 Rf3 Re2 Rhg3
1q2N2Q/q1nr4/1bN3N1/1p1b3K/5Q1P/4Q1qk/N1qQp2B/Q3rb1N b - - 0 1 legal: proof: b4 f5 d4 a5 bxa5 d5 e4 Nc6 exd5 Na7 c4 Rb8 d6 Nh6 d7+ Kf7 d5 Nb5 c5 Ng8 a3 Nd6 cxd6 Ra8 h4 g5 f4 Ra6 g4 Ra8 a4 Kg6 Bg2 Kf7 Be4 fxe4 f5 Qe8 Rh2 Qd8 Rf2 h6 Rf4 gxf4 g5 h5 Ra2 Ra7 Rg2 Ra8 Rg4 hxg4 Ke2 e5 a6 c5 a5 b5 g6+ Kf6 a7 g3 g7 g2 a6 c4 Qd4 c3 Qe3 c2 Nh3 g1Q Nc3 Qg6 Na2 Qh7 Nf2 Ne7 g8Q Bb7 Nh1 Qb8 d8Q f3+ Kf2 Bh6 Kg3 f2 Kg4 f1B d7 Bf4 d6 Bd5 Bb2 c1Q Qc7 Qc2 d8N Bg3 d7 Bf2 Qe8 Bg1 Qh5 Re8 Nc6 Qf7 d8Q Qh7 Qf4 e3 Qb6 e2 Qbe3 e1Q Ba1 Qf7 Qh8+ Qg7+ Kh5 Qg3 Bc3 Bf2 Bb4 e4 Bd6 Bg1 Qa5 Rd8 Qad2 Rd7 Qed3 Bb6 Q3e3 Bb3 Bc7 Nd5 Bd6 Nc7 Be5+ Kf7 f6 Ke6 f7 Bd5 Bd6 Qbf8 Be5 Re8 a8Q Ree7 a7 Qb8 Qb7 Re8 a8N Ree7 Qa6 Qh7+ Qh6+ Kf5 f8N Qf7+ Ng6 Re8 Qed4 e3 Qa1 Qe7 Qa4 Qa3 Qb3 Qaa7 Bf4 e2 Qbe3 Rg8 Nf8 Rg4 Bd6 Rb4 Ng6 Rb1 Bf4 Ne6 Nc7 Re1 Ne8 Nc7 Q6g7 Bdg2 Qgd4 Bd5 Kh6 Kg4 Qc4 Qf3 Bh2+ Kh3 Qcf4 Qg3 Kh5
1R1N1n1Q/1Q1Qpb1N/bk2Pr1r/5r1q/Qrr3NQ/7n/q1NK4/b1N5 b - - 0 1 illegal: No possible last move, all moves rejected
K2b4/4BprN/R2b1qN1/4b3/3QrRrR/Bb6/4B1PP/1Nq2nkq b - - 0 1 legal: proof: e4 d5 exd5 g5 b4 b5 a4 h6 axb5 Na6 c4 Qd7 d4 Qd8 f4 gxf4 d6 Kd7 c5 Ke6 d5+ Kf6 Qh5 Nb8 Qg5+ hxg5 c6 Nd7 Ra3 g4 Rf3 gxf3 cxd7 Rh3 Be3 Rh5 Bc1 Rh8 Kd2 Kg5 Kc3 e5 Kc4 a5 Kc5 f2 Kc6 e4 b6 e3 b7 e2 b8N e1B b5 a4 b6 a3 b7 a2 Bb5 a1B Nd2 f1Q Nb3 Bh4 Nc5 Nh6 Be2 Rg8 Nb3 Rg7 Nd2 f3 Bb2 Kf4 Nh3+ Ke3 Nf4 Kf2 Ng6 Nf5 Bc1 Qd1 Ba3 Ng3 Nb1 Ra4 Rg1 Qg5 d8Q Be6 d7 Be5 Rh1 Qf4 d6 Bhe7 Re1 Qf6 Rg1 Bb3 Re1 Qd3 Rc1 Rb4 Rc4 Qd1 Rh4 Rg4 Qc8 Rg8 d8R Qh1 Nd7 Rg7 b8R Kg1 Kb7 c5 Ra8 c4 Qc5+ f2 Ra6 c3 Ka8 c2 Rb8 c1Q Rb4 Rc4 Qd5 f1R Qd3 Rff4 Qd2 Qf5 Nf6 Nf1 d7 Bd8 Nh7 Qf6 Rba4 Rg4 Qc3 Ba5 d8B Bfd6 Be7 Bd8 Qa1 Rce4 Qb2 Re3 Rf4 Re4 Qd4+
1N1N1R1n/B7/n1n3P1/nkP1nN2/2b2pQb/1R6/bB2R2r/2b1rBK1 b - - 0 1 legal: proof: c4 c5 a4 e5 f4 b5 axb5 exf4 d4 g5 dxc5 Bxc5 h4 Bf8 c5 Qa5+ Kf2 Qe1+ Kxe1 gxh4 Kf2 a5 g4 f5 e4 h5 b4 d5 b6 Kd7 g5 Kc6 e5 a4 b7 a3 e6 f3 e7 h3 e8N d4 g6 h4 Bd2 h2 Be1 h3 Nd2 f4 Nc4 d3 Rb1 d2 Bg2 a2 Rc1 a1B Ned6 Na6 b8B Be7 Ne8 Nh6 Kf1 Kb5 Nb2 f2 Ne2 Nf7 Bd5 Bh4 Rb1 Be6 Na4 Bb2 Bg2 Bc1 Ng3 Ba2 Qg4 d1N Nf5 Nb2 Nb6 Nc4 Ba7 Na5 Neg7 Rae8 Bc3 Re6 Rg1 h1N Rb3 h2 Bb2 Re7 Bh3 Ng3+ Kg2 f1N Nd7 Nd2 Nb8 Re1 Ne6 Ne2 Nd8 h1B+ Kh2 Rh6 Bf1 Ndc4 Rg2 Nd4 Kg1 Nh8 Rc2 Bd5 Re2 Ka4 b5 Ndc6 b6 N4e5 b7 Bc4 Nd7 Bf6 b8R Rh2 Rc8 Bg5 Nb8 Bh4 Rc7 Bd3 Rf7 Bc4 Rd3 Kb4 Rf8 Kb5 Rb3+
5N1r/2PB2P1/2KBq1rN/2n3rN/R4Rqb/2kp4/pQ1n1n2/b1B3R1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 h4 g5 b3 gxh4 c3 Bb7 Be3 Bd5 Bc1 Bc4 bxc4 dxc3 Ke2 Kf7 Ke3 Kf6 Kd4 d5 Kc5 Ke5 g4 a5 f3 h5 g5 c2 g6 a4 g7 h3 f6 h4 f7 h2 b6 h3 b7 a3 Nc3 d4 Na4 d3 Ne2 a2 Bg5 c1B Nac3 Bb2 Nb5 Nd7+ Kc6 Ngf6 c5 Ne4 Qc1 Ra5 Nbd4 Nd2 Nf5 e6 b8R Be7 Rg1 h1N f8N h2 Neg3 Nf2 Nh6 Kd4 f4 h1R f5 e5 f6 e4 f7 e3 Nh5 e2 Bh3 e1Q Ra8 Qe5 Rb1 Ba1 Qb2+ Kc4 Be3 Bh4 Rbf1 Qdg5 Ra7 Qg4 Bg5 Nf3 Bc1 Nd2 Ra6 Nfe4 Rf4 Qee6+ Kc7 Rh2 c6 Rg5 Kb7 Rg2 c7 Qe8 Kc6 Nc5+ Nd7 Rg3 f8B Qee6+ Bd6 Rg6 Nf8 Rg5 Qb6 Kc3 Ra4 Nf2 Qb1 Rg6 Qb7 Qge2 Qb6 R3g5 Bf5 Qg4 Qb8 Qe8+ Bd7 Qee6 Qb2+
Nn2K3/6B1/1bp2Q1R/nRp2b2/1bn5/kB2P3/bN2R1Pr/1bN1q1B1 b - - 0 1 legal: proof: b4 a5 h4 b5 f4 e5 c4 exf4 cxb5 g5 a4 gxh4 b6 Qe7 b7 Qc5 bxc5 Ra6 Kf2 Rf6 Ke1 Rb6 c6 Rb5 axb5 dxc6 b6 c5 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Kd5 Kb4 d4 h5 e3 f5 Bc4 f3 Rh2 h3 Bb5 f2 Qe2 f1B Bc4 a4 Qa2 a3 Bb3 f4 Bd1 h4 Nf3 Bc4+ Ke5 Bf5 d5 Ne7 Kf6 Nec6 Kf7 Be7 Bb2 Bd8 Nc3 Na5 Na4 c6 Ne1 f3 Bg7 f2 Nb2 f1B Bb3 B1d3 Rc1 Bc2 Qa1 a2 Ned3+ Ka3 Re1 Bb1 Nc1 Rh5 Rhh1 h2 Re2 h3 Ke8 Rh7 d6 Bg8 Rhe1 h1N d7 Ng3 Rh1 Nf1 Rh2 Bc7 d8N Nd2 Ne6 Ndc4 Rh1 Bd8 Nc7 h2 Na8 Rh8 Nd1 Rh6 Qf6 a1B Nb2 Rh5 Nd1 Bc3 Nb2 Nd7 b8B Bb4 b7 Bb6 Bg3 Nb8 Bf2 Rh4 Rf1 h1Q Bg1 Rh5 Rf3 Rh2 Rh3 Ba2 Rh6 Bgh7 Bf2 Qe1 Bg1 Na6 b8R Bfb1 Ncd3 Bf5 Rb7 Nb8 Nc1 Bc7 Rb5 Bd8 Rg6 Bb6 Rh6
4n1Nr/1bR1b1Bk/Nn1b1P1n/1n1P1R2/QnN2B1n/8/R1rn1K2/q5B1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b4 a6 b6 Bd7 b7 Nf6 b5 Ng8 b6 Bc8 Bb5+ axb5 d4 Kf7 f4 Kg6 g4 h5 g5 e5 f5+ Kh7 d6 c5 d5 b4 f6 b3 d7 e3 Ra3 c4 Nd2 h3 Bb2 e2 Bc1 b2 Rb3 b1N Ngf3 h4 Nd4 e4 Rg3 c3 Kf2 e1N N4b3 e3+ Kg1 h2+ Kf1 h3 Rg4 c2 Bb2 c1B Re4 e2+ Kf2 Be7 Rg4 Nf3 Rf4 e1N Na1 Nh4 Ndb3 Nef3 Na5 Nc3 Nc2 Nh6 Nb4 Nd2 Rf5 Nb5 Bd4 Ba3 Na6 Bad6 Nc4 Qc7 d8B Nd7 b8R Qa7 Qa1 Bb7 Rc8 Rb8 Rc6 Rc8 Qa4 Rc7 Ra1 h1N+ Ke3 h2 Ra2 Ng3 Kf2 Rc8 Rc7 Nh5 Bc5 Ng7 g6+ Kg8 Bb4 Ne8 g7 Kh7 g8N h1N+ Ke2 Ba8 b7 Nf2 b8B Bb7 Bc5 Nd3 Bg1 Nb4 Ke1 Bf8 Be7 Qd4 Ke2 Qa1 Ke3 Nb6 Kf2 Be5 Bc5+ Be7 Be3 Nf7 Bh6 B5d6 Bg7 Nh6 Ba7 Nd7 Be3 Nb6 Rd7 Rc7 Bf4 Rc6 Rc7 Rc5 Ne3 Rc2 Nc4
3b1q2/1K1Rn3/N1n4r/1N1NPrk1/bq2R1P1/Q1B5/n2r1r2/Bn1BR2q b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 d4 h5 g4 h3 b6 h4 d6 f3 Kd5 f2 e4 c4 d7 c3 b7 c2 Bh6 c1N Bb5 f1R Bc6 b3 Bd2 h2 Ra5 b2 Bb5 h3 Nc3 b1N Ra4 Rf2 Qb3 Rh6 Nge2 Nc6 b8N Na2 Re1 h1Q Qa3 h2 Nf4 Kg5 Na6 f5 Be2 Be7 Nb5 Qf8 d8R Bd7 Bd1 Qg2 Rb4 h1Q Bc3 Be8 Rd7 Bd8 Rc4 Nge7+ Kc5 Rd2 Nd5 f4 e5 f3 Ba1 Ra7 Ra4 Rc7 Kb6 f2 Rb4 Rc8+ Kb7 f1R Bf3 Re2 Rc7 Na7 Nd6 Qhh3 Nc3 Ba4 d5 Rh4 Rd7 Rh6 Ndb5 Qgh1 Re4 Rh2 Be2 Rf5 Bd1 Rhf2 d6 Ba5 Nd5 Qb3 Rd8 Rcc2 d7 Qc3 Re8 Rcd2 d8B Qc4 Bb6 Qb4 Rd8 Nac6 Bbd4 Bc7 Rd7 Bd8 Bdc3
1r2r3/PQB3KR/3P1RR1/4kpBq/n4b1q/1r2nNq1/N2r2b1/1b3B1N b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 gxh5 d5 cxd5 c5 Qd3 cxd4 Qd2 Nf6 Qd1 Ng8 Kd2 Ke7 Kd3 Kd6 Ke4 g5 h4 b5 a4 f3 e3 g4 a5 g3 h6 d3 a6 d2 h5 b3 h7 b4 h6 g2 a7 b2 Qb3 d1R Nc3 b1R Na2 f2 Nf3 Ne7 Rg1 f5+ Kf4 Be6 Kg5 Rd2 Kf6 Na6 e4 Rb8 Qb2 Rg8 h8B b3 h7 Bh6 Bg7 Bf4 h8R Bf7 Rh7 Re8 Bh6 Be6 Bg5 Nc5 Kg7 Na4 e5+ Kc7 Rgh1 g1Q R1h6 Qg3 Rf6 Kd7 d6 Bd5 e6+ Kc6 Rh1 Be4 Rh7 Nd5 e7 Kc5 Ne5 Ne3 Nf3 Rf8 e8N Kd5 Rf7 Ke6 Nf6 Re8 Nh5 Bc6 Rf6+ Kd5 Qc2 b2 Qb3+ Ke4 Qb7 Bd5 Bb5 f1Q Ba6 Qfh3 Bf1 Rd4 Bd2 Bc6 Ne1 Ke5 Ba5 Bg2 Bb6 Rd2 Bc7 Qf2 Ng3 Qh5 Nh1 Qg3 Nc3 Rbd1 Rc1 b1B Na2 Rb2 Rc2 Rb3 Rf2 Rd2 Rf3 Qgh4 Rg3 Qc8 Bh6 Qe6 Rgg6 Qd5 Bg5 Qdf3 Rh8 Qff2 Rh7 Qfg3 Nf3+
BnR1n3/kPb3bn/1n2N1Pp/2q2q2/1rR1rB1b/B7/1NKQb3/1N3R2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 e5 axb5 exf4 h4 gxh4 e3 fxe3 g4 Kd7 d4 a5 b4 c5 d6 f5 b6 Kc6 b7 Kb6 g5 h3 b5 a4 g6 a3 d7 e2 Kd2 e1B+ Kc2 a2 d5 h6 d6 h2 Bc4 f4 Bb3 f3 Nd2 f2 Bb2 f1N Ne4 c4 Qf3 c3 Bc1 Ne3+ Kd3 c2 Ng3 Ka7 N1e2 Bg7 Nc3 Qf8 d8N Nd5 d7 Ngf6 Ba3 c1Q Nf5 Ne8 Qg2 Bh4 Qd2 Nb6 Rf1 h1N Nd6 Ng3 Bd5 Ne4 Nc4 Ng5 Nb1 Nh7 Nb2 Qcc5 Ne6 Qf5+ Be4 Be5 d8R Bc7 Rf4 Bd7 Rc8 Rg8 Rg4 Rg7 Rf4 Re7 Rf1 Bc6 Rc1 Bd5 Rc4 Bc6 Kc2 Bd5 Bd3 Bf3 Be4 Bh5 Nc3 Bf3 Rf1 a1B Nb1 Be2 Nd1 Bg7 Nb2 Nc6 b8B+ Kb7 Qc1 Ra4 Qg5 Rb4 Qd2 Bd8 Bf4 Ka7 Kc1 Nb8 Kc2 Qg5 Ba8 Bc7 Nf8 Re4 Ne6 N6d7 Rd8 Qgf5 b6+ Ka6 b7 Ka7 Rc8 Nb6 Qd4 Na6 Qe3 Nb8 Qd2
1QbBR1rk/2q2Nr1/qqNr4/1q1nN1P1/2b3R1/1B1Rp2B/2P3K1/2q3b1 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g6 axb5 Na6 d4 cxd4 g5 fxe4 f4 Nc7 f5 gxf5 g6 f4 Rh2 Ne6 Rh1 Ng5 hxg5 Qa5+ Kf2 Qc7 Ke1 Qd8 Kf2 d5 b4 a5 b6 h5 g7 Kf7 b5 e5 b7 f3 b8R e3+ Kg3 e2 b6 e1Q+ Kh2 f2 b7 h4 Bh3 f1Q Bd7 d3 Ba3 h3 Bb5 a4 Ne2 d4 Bd7 d2 Rg1 e4 Nf4 d3 Bc6 Qef2+ Rg2 Bc5 Ra2 Qc7 Rb2 Ra7 Rb5 Nf6 g8B+ Kg7 Bb3 Nd5 Bd7 Rg8 Nc3 Kh8 Qb1 d1Q Ne2 d2 Ng3 Qc1 Nf5 d1R Nh6 Bb6 Bf8 a3 Be7 a2 Bd8 a1Q Bf5 Qfd4 Rg4 Qa6 Ra8 Qdb2 b8N Bg1+ Kh1 e3 Nc6 h2 Nd3 Qd4 Nde5 Qdb6 Bd7 Qc4 Kg2 Qb4 Rc5 Q4b5 Rc3 Rb7 Rd3 h1B+ Kh3 Be4 Qb2 Bg6 Kg2 Bf7 Qc3 Ne7 Rh4 Qb8 Rd6 Qd4 Qd3 Rc7 Bh3 Bd7 Ra7 Bc8 Rg4 Bc4 Rd7 Qdb6 Qd6 Rf1 Rb7 Rf6 Ra7 Rb7 Qc7 Re6 Rd3 Nd5 Qd6 Rf7 Re7 Rfg7 Re8 Rf6 Qc7 Rd6 Qb7 Q8a7 Qb8 Qac7 Nhf7+
r4b2/q1p5/B1B1RP1Q/bNPb1b1R/1RnBNn1K/N7/n4k2/2nn3b b - - 0 1 illegal: No possible last move
qk2Q2B/6N1/2BP1Kp1/Prb3Rp/b3q1q1/1n2n1r1/3N1R1b/1RN1B1r1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 g6 h4 Qd6 h5 Qd8 g4 gxh5 g5 Be6 g6 hxg6 Qg4 Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 b5 f4 c4 a4 c3 d4 b3 f6 c2 f7 b2 f5 b4 f6 b3 Nf3 Nc6+ Kf4 e5+ Kg5 e4 d6+ Kb8 d5 e3 d7 e2 Ne5 e1R Bd2 c1B Bb5 Nd4 Qe2 Ne7 Rg1 Nef5 Nd3 Ne3 Bc6 Bc5 f8N Ra5 d6 Rb5 Rg4 Rg1 Ne6 Rf8 a5 Qe8 d8B Bd7 f7 Rg3 Nc3 b1Q Be1 b2 Ne4 Nb3 Bf6 Bd2 Bd4 Qd1 Kf6 b1Q Nc1 Bc3 Nd2 Qe4 Rg5 Rg1 Qh2 Qdg4 Rb1 Qc8 Qh3 Qa6 Ng7 Qa8 Be5 Re8 f8R Rg3 Kf7 Ba1 Bf6 Be5 Qh2 Rg1 Qe2 Bh2 Be5 Rc8 Ke7 Be8 Rf2 Bd7 Kf6 Rc7 Qc4 Rc8 Qe6 Rf8+ Ke7 Rf3 Bb2 Rfg3 Kf6 Be8 Qf7 Bd7 Qe8+ Bc8 Bd7 Nf1 Kf7 Ne3 Ne6 Rb6 Bh8 Rb7 Kf6 Rb4 Qf8 Rb7 Be8 Bd7 Ng7 Ba4 Qe7 Rb4 Bc6 Rb5 Qe8+
Q5B1/q1b3K1/n1rk1B2/Rp4PR/1b1r1nn1/bq1BP3/1R1p1N1N/N2n4 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 fxe5 c5 Qd2 cxd4 Qd3 Ne7 Qd1 Ng8 h3 fxg4 Kd2 g5 Bg2 g3 Bf1 g4 Ke1 g2 Nc3 g3 Qd2 b6 Nb1 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Kf7 Bb2 Ke7 Bc1 Ke8 Kd2 Ke7 Kd3 h5 Ke4 d5+ Kf5 b3 Kg6 d3 c4 h4 a4 d4 g5 b2 c5 b5 c6 d2 e6 d3 a5 h3 c7 h2 c8R Nf6 a6 Nh5 a7 Qd4 Na3 b1Q Bb2 Kd6 e7 Na6 Rc2 Rc8 a8B Rc6 Nf3 Qa7 Bf6 g1B Rb2 g2 Qa4 d1N Nc2 Bc5 e3 d2 Bd3 g1B Qa3 Bb4 e8N+ Kc5 Bb7 Nf4+ Kf7 Bd6 Kg7 Rh4 Qa5 Be7 Nd6 Bf2 Raa2 Bg3 Na1 Qc2 Qa3 Qb3 Ne4+ Kd5 Nf2 Kd6 Bc8 Rg4 Be6 Rh4 Rg1 h1N Nh2 Rg4 Bg8 Rh4 Nh3 Nhf2 Rh1 Ng4 Qa5 Kd7 Ra4 Ba3 Nf2 Beb4 Qb6 Kd6+ Qb7 Rh3 Ra5 Rh8 Bgh7 Re8 Bg8 Re4 Nf1 Rec4 Rh5 Rd4 Nh2 Nd5 Kg6 Kc5 Ra4 Bc7 Ra5 Kd6 Kg7 Nf4 Qa8
4Br2/1Kn1q2k/P2N2B1/R1b1p1qr/n3p3/2Pq1NQ1/R3rq2/B1q2N1R b - - 0 1 legal: proof: g4 a5 e4 f5 d4 fxe4 h4 b6 h5 g5 hxg6 Ba6 b4 axb4 d5 Be2 g5 Bg4 f3 c6 fxg4 cxd5 Qd2 d4 Qe2 Bg7 Qd1 Bf8 Kd2 d5 a4 e5 g7 Kf7 a5 Kg6 c3 h5 a6 h4 Ra2 b5 Rh3 b3 Rh1 b2 Ra4 d3 Ke3 b4 Ra1 b3 Qe1 d2 Ra5 d1Q Nd2 b1Q Bb5 h3 Ngf3 h2 Nf1 b2 Be8+ Kh7 Qg3 Ne7 g8N Qbc2 Nh6 b1R Nf5 Nd7 Bb2 Nb6 Ba1 Na4 Nd6 Qcd3+ Kf2 d4 Kg2 Q1e2+ Kh3 Nd5 g6+ Kh6 g7 Re1 g8B Nc7 Bc4 Kh7 g5 Qf2 Kg4 Re2 Kf5 Qe7 Be6 Qde3 B6f7 d3 g6+ Kh6 g7 d2 g8R d1Q Qf4+ Kh7 Rg2 Qdd3 Qg3 Qh6 Rhg1 h1Q Rh2 Qeh4 Rgg2 Qhg1 Rh1 Qc1 Rgh2 Nd5 Ke6 Nc7+ Kd7 Be7 Qf4 Qg5 Kc6 Rc8 Qg3 Bf8 Nc4 Bc5 Nd6 Rf8 Kb7 Qe7 Bb3 Rf5 Bbf7 Rh5 Bb5 Rf8 Bbe8 Qhg5 Rg2 Qg1 Rf2 Re3 Re2 Qf2 Ra2 Re2 Bg6+
bR1r2BB/N1P3r1/qQB1p1N1/Nq5p/2k1n2r/3r4/2q1Pnr1/K3R2R b - - 0 1 legal: proof: b4 a5 h4 f5 g4 g5 a4 c5 d4 cxd4 Ra3 axb4 Ra1 b5 axb5 Bh6 Bh3 fxg4 Bf1 g3 Bb2 g4 Bc1 Bg5 hxg5 Ra5 Kd2 Ra4 Ke1 Ra8 Kd2 Kf7 f4 Ke6 c4 d5 Kc2 d3+ Kb2 d4 g6 d2 c5 Kd5 b6 d3 f5 g2 f6 e6 g7 g3 f7 b3 f8N Na6 b7 Nf6 b8R Qb6 g8B Kc4 c6 Bb7 c7 Ne4 Qe1 d1Q Be3 d2 Nd7 Nf2 Bg5 Nc5 Nf8 Nce4 Be7 Qa6 Nf3 g1R Nc3 g2 Ng6 h5 Rc1 Rh7 Bh4 Rg7 Bf6 Bd5 Kb1 b2 Nd4 Qda4 Qd1 Q4b5 Nb3 Bc6 Qc2 d1R Bd4 Rd2 Re1 Rd3 Qc1 Bb7 Qe3 Bd5 Be5 Bc6 Qb6 Bb7 Rh3 Rh1 Bd4 g1R Bg2 Rh2 Bf3 Rhg2 Rh1 Rg4 Be5 Rh4 Bf6 Rg2 Bd4 Qba4 Nb5 Q4a5 Na7 Q5b5 Re8 Rd8 Rf8 Rgd7 Bh8 Rg7 Re8 Ba8 Rf8 Nd6 Bc6 Nde4 Re8 R8d4 Rc8 Rd8 Rb8 Qc8 Ka2 b1Q+ Ka3 Qc1+ Ka2 Qc2+ Ka1 Qca6+ Na5+
1RNq3N/4RbbR/4rk1B/4q1P1/4pB2/nqbP2p1/Nr1rQ2B/5Kb1 b - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 axb5 f5 b4 fxg4 b6 c6 b7 Bd7 Nf3 Be6 Ng1 Bc8 b5 g5 b6 g3 h3 g4 Ra5 g2 Bb5 cxb5 Qf3 g3 Qd1 Nc6 Ra3 Ne5 Ra1 Ng4 hxg4 Qd4 Na3 Qd7 Nb1 Qd8 b8R Kf7 f4 e5 c4 h5 b7 a5 d3 a4 f5 b4 c5 e3 f6 e2 c6 b3 c7 b2 Nc3 b1Q Bb2 a3 Bc1 a2 Rh4 e4 Bb2 Be6 c8N Nh6 Rh2 h4 Ne7 h3 Rc8 Nf5 b8B Rh6 Bf4 Bg7 Nf3 g1B Nh4 Nd6 Nhg6 Nb5 Rb8 Na3 Nc8 Ra5 Bbc1 Rb5 Bce3 Qb3 Qd2 Bc4 Nh8+ Ke6 f7 Kf6 f8B Bf7 Rb1 a1Q Na2 Qe5 Rc1 Rb6 Rc7 Re6 Rh1 h2 Bfc5 Rh5 Re7 Rf5 Bh6 Rf2 Bef4 Rg2 Qc2 Rf2 Kd2 e1B+ Kd1 Rf3 Ke2 Bc3 Ba7 Re3+ Kf1 Re2 Qd1 Rd2 Qe2 Be3 Rg1 h1R Bb6 Rh5 Rh1 Bf2 Ba7 Rh2 Bc5 Be1 Bg1 Rg2 Rh5 Bf2 Bh2 Bg1 Rg5 Bf8 Rg7 Rb2 Rh7 Bg7 Qe1 Rgc2 Qe2 Rd2 g5+
R1q2q1B/1p2P1N1/1K3R1P/r2bqB1N/1nN1q1n1/4pBrn/2r4R/1Q4k1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 e5 g4 h5 gxh5 a5 e3 axb4 Ke2 Bd6 Kd2 e4 Ke1 Be5 fxe5 dxe3 Ke2 Ke7 h4 Ke6 a4 Kf5 c4 Kg4 h6 Kg3 h5 d5 e6 g5 h7 f5 a5 d4 h6 g4 e7 b3 a6 b2 a7 d3+ Ke1 e2 Kd2 Kf2 Kc3 e1Q+ Bd2 g3 Kb4 g2 Kc5 f4 Nf3 g1R Ra5 Nc6 Bg2 Be6 Nd4 f3 Na3 b1Q Nf5 Bd5 Bc3 d2 Rh2 Qc8 Ng7 Nf6 Ra6 Nb4+ Kb6 Ng4 c5 e3 c6 Qe4 Qb1 d1N Bf6 Qc3 c7 Qce5 Nc4 Rg8 Bh1+ Rg2 h8N Kg1 Ng6 f2 Nf4 f1Q Nfh5 Rc2 Bg2 Ndf2 Bf3 Qg3 Ba1 Qge5 Bd4 Nh3 Bb2 Qf8 c8B Qc1 Bf5 Rc8 a8R Rc5 Ne6 Ra5 Bc3 Ngf2 Bd4 Rg3 Neg7 Ng4 Ne8 Q5f4 Bh8 Qfe5 Neg7 Q4f4 Ka7 Rd2 Nb2 Qee4 Bc8 Qfe5 Bf5 Rc5 Rg6 Ra5+ Kb6 Rf2 Rf6 Rfg2 Qa2 Qcc8 Nc4 Rc2 Qb1+
b1b4B/q1RN1bNb/1p4rp/1Q3B1N/5R2/2bP2P1/1k1n2b1/RB1qn1K1 b - - 0 1 legal: proof: b4 d5 h4 e5 f4 exf4 c4 g5 cxd5 gxh4 a4 a6 a5 Ra7 b5 axb5 a6 b4 Rh3 b6 Rh1 Rb7 axb7 Be6 Nc3 Bf5 Nb1 Bc8 Kf2 Ke7 e4 Kf6 g3 Ke5 d6 Kd4 e5 f5 d7 c5 e6 f3 e7 b3 e8B b2 Bf7 h3 Qe2 f4 Ra7 h2 Qd1 h6 Bg6 c4 Bgd3 c3 Bfe2 c2 Bf1 Bg7 Ra6 Qc7 d8R+ Nd7 b8N Nf6 Ra1 Qa7 Ra5 Rg8 Na3 b1B Re8 Nc5 Bh3 Nfe4+ Kf1 f2 Nc4 Bh8 Bf5 Rg6 Nh3 Ba2 Rg1 h1B Ne3 Bf7 Rf8 Bg7 Ba3 c1Q Bb1 Nd3 Nd7 Ne1 Qh5 Qd1 Rc5 Bf6 Rc2 Kd3 Bc5 Bc3 Bd4 Bf3 Bh8 Bh1 Ng2 Kc4 Ng5 Kb3 Rc1 Kb2 Qe2 Nc5 Ne6 Nb3 Ne3 Ba8 Qb5 Nf3+ Kg2 f1B+ Kh1 Bc4 d3 Ne1+ Ng2 f3 Ng7 f2 Kh2 f1B Nf4 Bh3 Nfh5 Bhg2 Rh1 Bg8 Kg1 Bh7 Rf7 Bcd5 Rh4 Be6 Re7 Bf7 Rf4 Ba5 Rc7 Bc3 Ree4 Qe2 Ra4 Qd1 Qa5 Nd2 Ra1 Ba6 Qd5 Bc8 Qb5+
b3nB1r/K7/1N1N4/1r1Rkp1P/2Pq1NqR/3R3Q/Bqqp3q/q1B4r b - - 0 1 illegal: No possible last move, all moves rejected
RN2b1nN/2B3P1/q5Bq/b1b1kBqR/1q5P/p1R1q3/4np1b/K3N2Q b - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 f4 exf4 g3 h5 Bd2 h4 Be3 a6 Bc1 h3 Na3 g5 Bd2 g4 Nb1 a5 Bc1 Rh4 gxh4 g3 Qd3 g2 Qd1 Ra6 Qd3 Rg6 Qd1 Rg3 hxg3 Qe7 Nf3 Qg5 Ng1 Qd8 Kd2 Ke7 c4 Kd6 Kc2 f5 e4 f3 b4 f4 Kb2 f2 g4 d3 b5 d2 c5+ Ke5 b6 d5 c6 h2 c7 d4 g5 f3 b7 a3+ Ka2 d3 g6 a4 g7 Qg5 Be2 f1Q Nc3 f2 Qe1 d1Q Bh5 d2 Nb5 Qde2 Bg6 Bd7 c8B Be8 Nd6 Qee3 Bcf5 Nc6 b8N d1Q Bb2+ Nd4 Nf7+ Kf6 Bc1 Qdh5 Nh8 Qa6 Nf3 Ne2 Qf1 Bb4 Ne1 Qhh6 Kb1 Bc5 e5+ Ke7 e6 Kf6 e7 a2+ Kb2 Ke5 Rg1 h1Q Rb1 Qa5 Ka1 Qa6 Rb5 Qh2 Bd2 Qhf4 Ba5 Qb4 Rh1 g1B Rh3 Bh2 Qh1 Qbd2 Bc7+ Qdd6 Kb2 a1B+ Kb1 a3 Rf3 Qd4 Rc3 Qde3 Ra5 Bb2 Rb5 Bc1 Ka1 Bd2 Rcb3 Ba5 Rc3 Bd7 e8R+ Kf6 Re5 Be8 Rb7 Qdb6 Ra7 Qbb7 Ra8 Qb4 Bc2 Qgf4 Rh5 Qfg5 Bcd3 Ke6 Bdf5+ Kf6 Bd8+ Ke5 Bc7+
n3N1bK/1q1RRB2/2bN1k2/2p4B/2R1P3/2r1p1n1/P2p1Nbn/B1Qrr3 b - - 0 1 legal: proof: h4 e5 b4 g5 d3 gxh4 b5 f5 b6 e4 dxe4 axb6 Bf4 b5 Bc1 b4 e5 b5 e6 f4 c3 b3 e7 b4 e3 b2 e4 Kf7 e8N b3 Nf6 Ke7 Nd5+ Ke8 Ne3 Bb4 cxb4 fxe3 Ke2 Kf7 Kd3 d5 Kd4 h5 Ke5 c5 g4 h3 f4 h4 f5 h2 b5 h3 f6 d4 b6 d3 g5 d2 b7 Ra6 Be2 Bg4 Nc3 b1B Nb5 Qb6 Bb2 Bd7 Qc1 Bc2 Nd6+ Kg6 f7 Bc6 f8R Ra3 Bd4 b2 Rf7 b1R Rd7 Na6 b8N Nc7 Na6 Na8 Nc7 Nf6 Nce8 Ng4+ Ke6 Rh5 Ke7 Rab3 Kf8 Rc3 Kg8 Qb7 Re7 Rh7 Bd1 Rg7+ Kh8 Bb3 Bf3 Bg8 Be2 Kh5 g6 Kg5 Bd1 Rf7 g7 Rf1 Bf3 Rd1 Be2 Bh7 g8B Re1 Bf7 Bg8 Qa3 Rbd1 Rc1 Rd3 Ba1 Rc3 Ng7 Kf6 Rc2 Ne5 Beh5 Nf3 Qc1 Qb1 Ne2 Qb7 Rf1 h1B Ng1 h2 Nh3 Bg2 Nf2 h1N Nge8+ Kg5 Rd7 Ng3 Rh1 Rb3 Rc4 Rc3 Rh4 Nh2 Rf4 Ra3 Rf6 Rc3 Re6 Qb2 Ng7 Qb7 Ree7 Kf6 Nge8+
8/n3B2K/pN1R1R1B/1P1Nk1Nr/r1Rp2r1/q4b1B/2QP2p1/3bbq1r b - - 0 1 legal: proof: b4 c5 a4 b5 f4 h5 g4 hxg4 a5 e5 c4 Nc6 cxb5 Nce7 Nf3 Nd5 Ng1 Nb6 axb6 exf4 Ra6 cxb4 Ra2 Ke7 Ra1 Ke8 Kf2 Ke7 h4 Kf6 e4 g5 h5 d5 h6 g3+ Kf3 g4+ Kg2 d4 b7 b3 b8B b2 h7 Ne7 Ra6+ Qd6 Rh4 Nc6 Na3 b1R Qa4 Be7 Nc4 Bb7 Nh3 Qa3 e5+ Ke6 Bd6 f5 Qc2 Bf6 Rh5 Bh4 Nb6 Ra1 Bf8 f3+ Kg1 g2 Kh2 g1R Bh6 f4 Rf5 f2 Ng5+ Ke7 e6 Kd6 e7 f3 e8R g3+ Kh3 Rb1 Bg2 f1B Kg4 f2 Kh5 Be2+ Kg6 f1Q Bh3 Bd1 Rc8 Ra1 Rff8 Ke5 Rf6 g2 Bb2 Be1 Bc3 Ra2 Bb4 Rh1 Be7 Ra1 Rc7 Raf8 Rd6 Rf4 Rc8 Rg4 Kg7 Nb4 Rc4 Bbf3 Rf6 Nc6 Rd6 Rf8 h8N Rf5 Kh7 Ra2 Ne6 Rh5 Nc7 Qa5 Ncd5 Ra4 Qc1 Qc3 Qb2 Qa3 Nf7+ Ke4 Ng5+ Kf5 Nc8 Ke5 Rb6 a6 Qc2 Na7 Rf6 Rh2 Rbd6 Rh1 Ncb6
8/N5Kp/1nRqrN1B/R3B3/Q1n1P1p1/3p1RqP/3n1nbB/2kq2nN b - - 0 1 legal: proof: d4 a5 b4 axb4 c4 d5 e3 e6 Be2 Bd6 Bf3 dxc4 d5 Be7 d6 Bf8 Bd5 exd5 e4 Ra3 e5 Re3+ fxe3 b6 e4 b5 g3 f5 Qd4 f4 Ke2 f3+ Ke1 Be7 Qd2 Bg5 Qd1 Bf4 gxf4 Bf5 Kd2 Bd7 Ke1 Bc8 Kd2 Kd7 Ke3 Ke6 Kd4 g5 a4 c5+ Ke3 d4+ Kd2 b3 d7 b2 a5 f2 a6 f1N+ Ke2 d3+ Kf3 c3 Kg4 c2 Kh5 b4 a7 b3 a8N c4 Ra2 c3 Ne2 Nf6+ Kh6 Nd2 Nb6 Ng4+ Kg7 Re8 Nd5 Nf2 Na3 b1Q Nf6 b2 Nb5 Nc4 Ng3 Qb6 d8B Qd6 Be3 c1N Qa4 c2 Bc7 Ne2 Rf1 c1Q Na7 Ng1 Nh1 Qe1 Bd4 Nd7 h3 Ndb6 Ra1 Qbd1 Bb8 b1N f5+ Ke7 e6 Nbd2 Rc1 Qe3 Be5 Qg3 Ra1 Bd7 Qb3 g4 Ra5 Ba4 Qc2 Qe2 Qa2 Bd1 Qa4 Qe1 Bc7 Bf3 Bb8 Bg2 Bc7 Nd1 Rf3 Nf2 Bb8 Qd1 Bc7 Qh4 Bh2 Qhg3 Bb8 Qa3 Bf4 Qd6 Be5 Kd8 e7+ Kc7 Nh5 Kb7 f6 Kc7 f7 Kb7 Nb5 Kc6 f8B Kc5 Nf6 Rd8 Qa1 Kb4 e8R Kb3 Re6 Kc2 Na7 Re8 Qa2+ Kc1 Qa4 Qd5 Rc6 Re6 Kf7 Qc5 Bh6 Qd6 Kg7
B2KbNqn/1Pr2p1Q/1P6/R1pk1pp1/2n1N1q1/1qb1n3/4R1R1/N4BB1 b - - 0 1 legal: proof: c4 b5 a4 a5 axb5 h5 g4 hxg4 f4 d5 d4 c5 f5 Ra6 f6 dxc4 d5 Rc6 dxc6 exf6 Qc2 f5 Qb3 Qd5 Qd1 Qd8 Kf2 Ke7 Ke3 Ke6 Kf4 a4 b4 g6 e4 a3 h4 g3 e5 a2 b6 c3 c7 g2 b5 c2 h5 Na6 h6 Qd5 Kg5 Qe4 h7 Qe2 Rh2 Nb8 Nh3 g1N Be3 c1Q Na3 Ne7 Nc2 Bg7 Nf2 Qb2 Rg2 Nd7 Ne4 Nd5 Bd4 Rd8 h8N Ne3 Qd2 Bb7 c8B Bc6 Bb7 Nf8 Ba8 Kd5 b7 Be8 b6 Rd7 e6 Qb3 e7 Rc7 Qe1 Be5 Qh4 Qec4 Qh7 Nf3+ Kh6 Nd2 Kg5 Bd6 Kf6 g5 Ng6 Bf4 Ne5 Ng6 Nd7 Nh8 Nf8 Qe2 Rg1 Qg4 Rg2 Nec4 Bg1 Ne3 Qg8 Ndc4 Qh7 Bd7 e8R Be5+ Ke7 Bc3 Kd8 Ba4 Re1 a1Q Rc1 Qab2 Na1 Qbe2 Re7 Be8 Rc2 Qd3 Ra2 Qd4 Ra5 Qg7 Nf2 Qg8 Re4 Nc2 Re2 N2e3 Ne4
bQ1R3B/BP1r1P1R/n3K1N1/q1R1n3/Bp3b2/n3pNk1/1n2qp1p/6N1 b - - 0 1 illegal: No proof kernel
N2B3B/4P1nQ/2p1nBp1/2R3rb/2r1b2b/Kb1P2p1/2p3R1/1NN1Rn1k b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 Nh3 h5 Kf2 f5 Ke1 f3 Ng1 f4 Bg2 Qg5 Bh3 Qf5 gxf5 Rh6 Bg4 hxg4 Qa4 Rh5 Qd1 Rh8 e4 Kf7 b4 Kf6 h4 Ke5 f6 a5 b6 a4 f7 g3 b7 f2+ Ke2 f1B+ Ke1 f3 h5 Kf4 e5 a3 b5 g6 h6 c3 h7 c2 b6 a2 e6 c6 Qe2 Ra4 Bb2 Rc4 d3 f2+ Kd2 Nf6 Kc1 Ne8 Bf6 Na6 Kb2 Ng7 b8N Nc5 b7 Bg2 Ka3 f1B Rh5 Be4 Nd7 Be7 Qh2 Be2 f8R B2f3 Rd5 Bh5 Ne2+ Kf3 b8B Ba6 Qh4 Kg2 Nb6 Bb5 Bbe5 Ba4 Nc1 Bb3 Na8 Bd8 Bc7 Kg1 Qf4 Kh1 Qh6 Be7 Rf7 Rb8 h8B Rb5 Qh7 Bd8 Bb2 Bh4 e7 Nce6 Rf2 Rbc5 Bd8 Rb5 Nd2 Rbc5 Rb1 a1N Bf6 Rb5 Rg2 Rbc5 Rd7 Rg5 Rd6 Ba2 Rb5 Nb3 Nb1 Nd2 Rc5 Nf1 Rdd5 Bb3 Re5 Bef3 Re3 Be4 Re1
B2q1B2/2rp1K1p/n3pN2/2Q3qN/N1B5/1p1n1P2/2P1bknq/R2R1qR1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 h3 g5 h4 b5 f3 Ra3 f4 Rf3 gxf3 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Qc7 Rh3 Qa5 Rh1 Qd8 Ke2 Kf7 a4 Kg6 a5 Kf5 g6 e3 Kd3 g3 g7 e6 a6 g2 a7 e2 a8B e1N+ Kd2 d3 Ke3 d2 Kd4 b3 Ra3 b4 Nc3 b2 Nh3 b1Q Bc4 b3 Ra1 Na6 Ba3 Nh6 g8N Nd3 Bf8 Ng4 Na4 Ne3 Qg1 d1Q Nf6 Qe2 Qf2 Qc1 Rd1 Qf1 Qg1 Ng4 Qf2 g1Q Qe3 Qh2 Qe5+ Kg6 Qc5 Ne3 Ke4 Ng2 f5+ Kf7 Kd4 Qg5 Nf4 Bb7 N4h5 Bc6 Nd5 Bb5 f6 Kg6 f7 Kf5 Ndf6+ Ne5 Bcd5 Be2 Bc4 Rg8 Bg7 Rh8 f8R Rg8 Re8 Rh8 Bf8 Rg8 Ng7+ Kf4 Re7 Kg3 Ngh5+ Kf2 Rg7 Nd3 Rg6 Qd2 Rg5 Nge1 Rg1 Ng2 Qc7 Rg5 Qc6 Rc5 Qd5 Ndf4+ Ke5 Rc7 Kd6 Nd3+ Qe5 Qc8 Ke7 Qg5 Kf7 Qd8 Qc5+
nk1K4/Np2B3/BN2pn1r/2rPp1P1/4N2p/r3rRR1/1b2p1BR/2Q1r3 b - - 0 1 illegal: No proof kernel
1b1N2n1/k3r1N1/2NB1n1q/qR2Pr1r/rr5B/1P1q2n1/b1B1bR2/K1RQ4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 c4 a5 Kc2 h5 g4 d5 e4 Kd7 b6 Kc6 e5 Kb7 c5 h3 g5 f3 g6 h2 g7 d3+ Kc3 d2 Bg2 d4+ Kc2 a4 Qe1 d1R Na3 d3+ Kb1 h4 Qf2 d2 Qg3 h3 Nc2 a3 Bf1 f2 Bb5 f1R Be8 f4 Qg4 f3 Ne2 f2 Ra2 Nd7 Ncd4 Rh5 Ne6 Rb8 Ka1 Bd6 Bg6 Ndf6 c6+ Ka8 b7+ Ka7 N2d4 Qa5 Rg1 h1Q c7 h2 Nd8 Be6 c8R Qhd5 Rc2 h1Q Rc5 Qde4 Rb5 Qd3 Nf7 Re8 Nd8 Bb8 Bh7 Rde1 Qd1 Re4 Bg6 Re7 b3 Bf5 Rc2 a2 Ba3 Qh2 Rg2 Qf4 Rc1 Qh6 Bb4 Rfe1 Rh2 f1N Rf2 Ng3 Bd6 Rf1 Ba3 Qc4 Bh7 Rf4 Bd6 Bb1 Bc2 Qd3 Ba3 Rc7 Be7 Rfh4 Ne2 Rb4 Nd4 Ne8 Bh4 Nef6 Re2 Rff5 Rf2 Ne7 g8N Rd7 Qh1 d1B Qg1 Be2 Qd1 Ne8 Nf6 Ng8 Qd2 Re7 Qd1 Nc7 Ne8 Nd5 Ng7 Ndf6 Rb6 Bc7 Rb5 Bd6 Kb2 a1R b8B+ Ka6 Ne8 Raa4 Ng7 Ba2 Bc7 Ka7 Ka1 Bc5 Bd6 Bb6 Nge6 Bc7 Ng7 Bb8 N4c6+
q3bK2/k1r3r1/nN6/N1r2RB1/1b1n2RQ/3Prr2/2rPBBq1/2R1rN1b b - - 0 1 legal: proof: f4 a5 g4 e5 b4 exf4 g5 axb4 g6 d5 Ba3 d4 Bb2 d3 cxd3 hxg6 Ba3 g5 Bc1 g4 Kf2 Kd7 e4 Kc6 a4 Kb6 h4 f5 e5 c5 e6 g5 a5+ Ka7 e7 b5 e8R g3+ Kf3 c4 h5 c3 h6 c2 h7 b3 a6 b4 Ba3 c1R Re6 g2 Reh6 b2 Rg6 b3 Rb6 g4+ Kf2 f3 Kg3 f2 Kf4 g3 Ke5 f4 Re6 f3 Rh5 Bb4 Rg5 Rc5+ Kf4 Bd7 Ne2 g1R Rd5 g2 Ke5 Nh6 Kd6 Re8 h8B Nf5+ Ke5 Nd4 Kd6 Qa5 Rh6 Re3 Ng3 Be8 Be2 f1R Bf6 f2 Bg5 Re1 Rh4 f1R Qc2 Rff3 Rf5 Rc1 Qc3 Rc2 Qc4 Rgc1 Re4 g1Q Ke7 Qg2 Kf8 Qd8 Rg4 Qd5 Nc3 b1R Nf1 b2 Na4 Re1 Nb6 Rbc1 Rb1 Qb7 Ra1 b1B Bb2 Ba2 Rb1 Nb5 Bd4 Rc7+ Bc5 Rg7 Qd4 Bd5 Qf6 Nd4 Nc4+ Qb6 Na5 Be4 Bd6 Qd8 Ra1 Rc5 Bg3 R1c2 Bf2 Rf4 Nb7 Qh3 Rg3 Bh1 Qe5 Kb6 a7 Rff3 Na5 Qg2 Rg4 Na6 Qh2 Rac8 a8N+ Ka7 Nb6 R8c7 Qh4 Qa8 Rc1
n1N5/KPP2N2/N2q1k1r/r1r1B2Q/5brn/2rR1Bqb/3Br2q/2RrR3 b - - 0 1 illegal: No possible last move, all moves rejected
3Bq3/1r1bN1K1/1Q3NBN/1r1rb1b1/2RbP2R/P1n1q2r/1R4n1/Bkr3q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 h4 Kd6 d4 f5 e4 c5 h5 b5 a3 g5 h6 f3 Ke3 f2 h7 g3 Kd3 c4+ Ke3 f4+ Kf3 g4+ Kg2 c3 Qe2 b3 Qc4 b4 Nf3 b2 Qe2 b3 Ne1 c2 Qd1 Nh6 Rh2 f3+ Kh1 Nd7 Be2 Ra5 Ba6 Qe8 Qd2 Bg7 Nc3 b1R Qd1 b2 Bc4 Nf5 Ng2 Be5 Nf4 Nh4 Qg1 f1Q Ng6 f2 Ne7 Qh3 Be3 Rd1 Rc1 f1R Bg5 b1R Bf6 Ng2 Ba2 Rf8 h8R Nb6 Rh4 Rab5 Bb3 Na4 Bh8 Kd7 d6 R8f3 Ncd5 Ke6 d7 Nc3 d8B Bd7 Nf6+ Kd6 d5 Rb7 Bc4 R1b5 Bg7 Re3 Be2 Kc5 d6 Kd4 Bc4 Rfe1 Bf7 Kd3 Bg6 Rd2 Rb1 c1B Rb4 Kc2 Rc4 Kb1 Bh8 Be6 d7 Rdd5 Bg7 Red3 Bh8 Bg5 Bg7 Rc1 Bh8 Ne1 Qb6 g2+ Kg1 Nc2+ Kf2 Ne3 Bg7 g3+ Kf3 g1Q Rb2+ Ka1 Bc7 Bf5 d8N Bd7 Nf7 Ng2+ Qe3 Qe6 Nh6 Qb6 Bd8 Qa7 Nef5 Qd4 Kg4 Qa7 Kh5 Qb6 Rd2 Kb1 Qf2 Rf3 Ne7 Qe3 Re2 Ne1 Bh8 g2 Rc2 Rh3 Ra2 Qg3 Qb6 Q1e3 Rd2 g1B Rf2 Ng2 Rb2+ Ka1 Bf7 Qh2 Kg6 Bf2 Kg7 Qg1 Rc2 Kb1 Bg6 Qd2 Ra2 Bfd4 Rb2+ Ka1 Qd6 Bef4 Rbb4 Ba7 Nfg4 Qde3 Kh7 Bh2 Bd4 Be5 Nf6 Ka2 Qa6 Na4 Ba1 Nc3 Kg7 Bad4 Qb6 Ne2 Ra4 Kb1 Rc2 Nc3 Rc4 Bf5 Ra2 Bd7 Rb2+
3n4/KR3bq1/RrP2b2/1q1rn3/qBQnR3/4qNkP/2BNn2n/1b2N2B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 f5 e4 g5 c3 a5 h3 d5+ Kd3 a4 b6 g3 c4 f3 b5 f4 b7 f2 b6 a3 c5 g2 c6 a2 Qb3 f3 Be2 f1N Be3 f2 Qb2 g4 Bh6 g3 Bd2 Nh6 Qb4 Qe7 Bc1 Qg7 Qb3 Be6 Bg4 Ra6 Be2 Bf7 Rh2 Be7 Qc3 Nd7 b8R Rd8 b7 Bf6 Bg4 Rb6 Ne2 g1N Bd2 g2 Nf4 Ne2 Qc4 g1Q Bf3 Q1g5 Rg2 Nh2 Rg4 f1Q Ng2 Qc1 Bb4 Qce3+ Kc2 d3+ Kb3 d4 Ka4 d2 Ka5 d1N Ne1 d3 Nd2 Ndc3 Bh1 Nb5 Rf4 Nbd4 Rh4 Rb5+ Ka6 Rb6+ Ka7 Qf5 Ra8 Qfg5 b8N Qh5 Rb1 a1Q+ Na6 Qa2 Rb2 Qb3 Nc7 Qhg4 Rb1 Kf4 e5 Kg3 e6 Ne5 e7 Rd5 e8B Qf5 Re4 Qa4+ Qa6 Qfg5 Ne6 Qf5 Ng5 Qf1 Nc4 d2 Ngf3 d1B Ncd2 Bc2 Rb3 Bb1 Bd7 Ng1 Bf5 Qfb5 Rb2 Qc2 Qa2 Nge2 Qc4 Qd1 Ra2 Qc2 Ra6 Qca4 Rh8 Ne6 Rb8 Nd8 Bg6 Nf5 Rb7 Nfd4 Rf4 Be6 Bc2 Bf7 Re4
3QbRnb/R2P2BN/PN2qrr1/3q4/3qn2K/2k1NBr1/1B1r1qb1/3R1q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 g4 Kd6 a4 Kc5 e4 Kd4 d3 b5 a5 c5 g5 h5 a6 f5 g6 b3 e5 b2 e6 f3 g7 h3 Kg3 c4 d6 c3 e7 c2 e8N h2 d7 b4 Bh6 c1Q Nh3 f4+ Kf2 h4 Ra4 Qc2+ Nd2 b1R Rg1 h1B Rg2 Kc3 d4 b3 d5 b2 Rg5 Bg2 Ng1 h3 d6 h2 Bc4 h1Q Qe1 Rd1 Nf6 b1Q Ra1 Qbb3 Be2 Qe6 Nc4+ Rd2 Nh3 Be7 Ng4 Bf6 Nge3 Qb6 d8B Qd4 Bc7 Nd7 Rg4 Nc5 Ng5 Bd7 Nb6 Be8 Rd1 Rc8 Bd8 Rc6 Nh7 Qh5 Qh1 Qhd5 Qh4 Be5 Bf6 Ne4+ Kg1 f2+ Kh2 f1R Bf3 Rd3 d7 Qf2 Rg5 Rd2 Rf5 Ne7 Qg5 Rg8 Qh4 Rg1 Qg5 Rf8 g8R Rd6 Bh8 Rf6 B6g7 Rg6 Rgf8 Ng8 Qd8 Bf6 Bh5 f3 Bg4 Bh1+ Kh3 Rc6 Rg5 Rg3+ Kh4 Bg2 Bh5 Qg1 Bg4 f2 Bf3 Be5 Rgf5 f1Q R5f6 Qgf2 R6f7 Qf5 Re7 Rcf6 Re6 Q4c4 Rc6 Qfe6 Rc7 Qcc5 Rb7 Qcd4 Ra7 Rf7 Bf6 Kb3 Be2 Q4c5 Be7 Kc3 Bf3 Qcd4 Ba3 Rf5 Bg7 Rf7 Bh6 Bh8 Bg7 Rff6 Bb2+
1b1K3k/3B4/n2R2nN/2n1QbrP/P2b2N1/r2qB3/2NqnR1B/rq1q3R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 e4 Kf7 h4 g5 d4 Kg7 d6 b5 e5 c5 d5 g3+ Kf3 g4+ Ke2 g2 Kd3 g3 a3 c4+ Kd4 f3 Kc5 b3 e6 f2 e7 c3 e8R c2 h5 f4 Ra2 f3 Nc3 b4 Ba6 f1R Bd3 b2 Nb5 b1Q Bc4 b3 Qd2 f2 Qa5 b2 Be3 c1N Nh3 g1B Re6 g2 Nd4 Na6+ Kc6 Nb3 d7 Bd6 Bb5 Qd1 Nc2 Bb8 d6 b1Q Qc3+ Kh7 Qe5 Nbc5 Rg6 Qg5 d8B Bf5 d7 Ne7+ Kb6 Qd3 Bc7 Rg8 Rd6 Ng6 d8N Rg7 Rb2 Kh8 Bd7 Re1 Kc6 f1Q Nf2 Rc1 Kb6 Qfd1 Ng4 Bf2 Kc6 g1N Kb6 Ne2 Nf7+ Kg8 Nfh6+ Kh8 Bd4 Qgd2 Be3 Ne6 Kb7 Nec5+ Kc8 Bg1 Kd8 Bf2 Bg5 Bd4 Ra2 Qbb5 Rb2 Ra1 Be3 Ra7 Ra2 Qbb1 Rb2 Rb7 a4 Rb3 Rf6 Rc3 Rbb6 Rca3 Rbd6 Be6 Rf4 Bf5 Rf2 Q2c1 Re6 Ngf4 Qd5 Rg5 Rf6 Ng6 Bh2 Qd1d2 Qe5 Qcd1 Rd6+
r1q5/3RRQ2/6N1/qq1qN3/Rrq4N/kPBP1B1K/1bbnB1nb/2b4q b - - 0 1 illegal: No possible last move
2rq1n2/3bknn1/P5BP/rrB1b2n/4rRr1/1Q1bR3/BN2bR2/2K1NN2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 f5 Kd2 b5 e4 g5 a4 c5 h4 f3 e5 f2 d6 g3 h5 g2 h6 f4 d7+ Ke7 e6 b3 a5 b2 d5 c4 Kc2 g4 Kd2 g3 Qb3 f3 Ra4 c3+ Kd1 c2+ Kd2 b4 Rh3 Nf6 Qc3 b3 Rg4 Nh5 Bb5 f1B Qe3 f2 Qf3 Bg7 Rf4 Be2 Rh2 Re8 Bc4 Be5 a6 Ng7 Qe3 f1R Nf3 g1R Qc3 g2 Ne1 Rf3 Rh3 Re3 Rg3 Re4 Re3 Rg8 Rf2 Rh1 Rf4 g1N Rf2 Nh3 Qd3 Kd6 e7 Nf4 e8B Rh5 Bg6 Ke7 Qc3 Rf5 Qd3 Nfh5 Rf4 Qc7 d8R Nd7 Rf8 Qd8 Rf2 Rg5 R8f4 Nf8 Qc3 Bf5 Qd3 Rc8 d6+ Kf6 d7 Ke7 Nc3 b1R Na4 b2 Ba2 Ra1 Qb3 b1B Bb2 c1N Bd4 Rg4 Nb2 Bbd3 Bb6 Rb8 Bd4 Rb5 Ba7 Qc8 d8N Bd7 Nf7 Qd8 Ng5 Rh8 Ngf3 Rg8 Bb1 Raa5 Bd4 Na2 Ba7 Nb4 Kc1 Nc6 Nd2 Bc7 Ng2 Ne5 Ba2 Nf7 Ne1 Be5 Nf1 Qc7+ Qc3 Nh7 Nc4 Rc8 Nb2 Qd8 Bd4 Nf8 Ba7 Bc6 Qb3 Bd7+ Bc5+
3NN2r/1bRb2Pk/1K3nqn/1Bn1P1bR/N2nn3/1B6/b1rn1RqQ/4B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 h5 g4 f5 b4 Kf7 c4 Kg7 e4 a5 c5 f3 c6 a4 b6 a3 c7 h3 g5 f4 g6 h4 b5 h2 b7 h3 b6 a2 e5 f2 Bd2 f3 Bf4 Qf6 Bc1 Nc6 b8R Be7 b7 Nh6 Be2 f1Q Bg5 f2 Bc1 Bd7 c8B Qg2 Bg5 f1N Qa4 Nd2 Kc2 d3+ Kc3 Nd4 Nf3 Qb6 Rc1 h1N Bh4 h2 Be1 Nf2 Ng5 h1B Nf7 Bg5 Nd8 Nfg4 Qc2 Nf6 Bf1 Kg8 g7 Kh7 Be2 Qc6+ Kb4 Ra5 Ra8 Rc5 b8N Qa6 Qb2 Rc2 Nc3 Qe6 Rab1 a1N Na4 Nab3 Na6 Nc5 Ka5 Qf5 Ra1 Qg6 Rb8 Nb1 Ra3 d2 Rf3 d1B Kb6 Nd2 Bb5 Be2 Ra8 Bc4 Rf2 Ba2 Rb8 N4f3 Ra8 d4 Nc7 d3 Ne8 Nd4 Ra7 Qf1 Rc7 Bb7 Rd1 Qg2 Ra1 Nf1 Rc1 d2 Ra1 d1N Rb1 Bh3 Be6 Nc3 Bb3 N3e4 Rd1 Bhc8 Rd3 Nfd2 Rh3 Bd7 Rh5 Nd6 Qc3 Nd6e4 Qg3 Qh1 Qh3 Qg2 Qh2
k5RK/3qqq2/1rbbr2n/3N3N/B1rQn3/1PR1PBp1/7b/N3RrBr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 d5 h4 Kd7 c4 Kc7 b3 Kb7 c5 g5 h5 f5 b6 a4 e3 g3 h6 a3 h7 a2 Qe2 f3 Qe1 g2 Rh2 f2 Be2 f1R Rh5 g4 Rh6 f4 Nc3 f3 Qd1 g3 Nh3 g1B Rc6 f2 Bd2 Bd6 Bf3 Qe7 Be1 Bh2 Nf4 Nh6 Nh5 Re8 h8R Ra6 Rg8 Ka8 Rc1 a1R b7+ Ka7 Rb1 Nd7 b8N Rb6 Na6 Ra4 Nb4 Bb7 Nc2 Rc4 Na1 Nf6 Rc8 Ba8 c6 Ne4 c7 Bc6 Qd2 Rh1 Rd1 f1R Bf2 Qf7 Re1 Re6 Bg1 Qe7 Rcd8 Kb7 c8B+ Ka8 Rd7 Qf7 Rc7 Qe7 Rg4 Qf7 Bd7 Qe7 Be8 Qf7 Rg8 Qe7 Kc2 d3+ Kb2 d4 Nd5 Qf7 Qb4 d2 Qc3 d3 Qd4 Bb7 Rc5 d1Q Ba4+ Qe8 Rc7 d2 Rc5 Qe2 Rc7 Qf2 Rc5 Rcb4 Rc3 Rc4 Kc2 Bc6 Kd3 Qf8 Bg4 Qd8 Qe5 Bb5 Ndf6 Qf4 Bf3 Bb8+ Qd6 Qe7 Qd7 Rc8+ Kd4 Rc5 Qd5+ Bc6 Qc4 d1Q+ Qd3 Qc1 Qd2 Qd7+ Nd5 Qa3 Qd1 Qff7 Qd3 Rd6 Ke5 Rc4 Qd4 Nf6 Kf4 Re6+ Kg5 Qb4 Bg2 Qbf8 Bf3 Qf7e7 Kg6 Bd6 Rg7 Ne4+ Kh7 Qf5+ Kh8 Qff7 Rg8+
q4n1n/3q1bn1/1Br1NKb1/bk1P4/2P1RR2/1rn1N1B1/2nNp1B1/QRr5 b - - 0 1 illegal: No possible last move, all moves rejected
bBrrq3/2r1Rr2/NNq4R/b1p5/k1nQ2Pq/1rPR2NB/2K3B1/3nb3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 g5 d4 gxf4 Qd2 exd4 Qc3 h4 Qg3 hxg3 Kd1 a5 h4 f5 e4 d5 b4 Kd7 h5 d3 c3 f3 h6 f2 b6 Kc6 b7 Kb5 e5 f4 h7 f3 e6 g2 e7 d4 e8B+ Nd7 b8Q+ Bb7 Nh3 g1B Nf4 a4 Qc8 a3 Ng2 a2 Qb8 Ra7 Ne1 Nh6 Ng2 Ka4 b5 d2 b6 Qh4 Be2 f1R+ Kc2 d1R Bg6 f2 Ba3 d3+ Kb2 d2 Bc4 Ne5 Rh3 Bb4 Kc2 Ba5 Qd8 Nf5 Qd4 Ba8 b7 Rc8 Bd6 c5 b8N Rac7 Na3 Rb1 h8R d1R Ne3 Rb3 Rh6 Bh2 Rb1 a1Q Na6 Bg3 Rc1 Rd3 Re1 Rd1 Bd5+ Nc4 Bg2 Rd3 Re2 Qe1 Bf7 Rd1 Bfd5 Rd3 Rh1 Rd1 Bh3 Rd3 Bdg2 Rd1 Qh8 Rd4 Bf4 Rdd8 Rd2 Qe2 Qd4 Qf3 Rd3 Qc6 Nb5 Qe8 Nd5 Qc6 Nd6 Qe8 Re3 Qc6 Re7 Ne3+ Kd3 Nd1 Ne4 Rg1 Bd6 f1Q+ Kc2 Be1 Ng3 Qf7 Rh2 Qfe8 Nb6+ Kb5 Rh1 Rf1 Rg1 Rf5 Rf1 Rf7 Rf3 Qh8 Rd3 Qhe8 Nd7 Ka4 Bf4 Ra7 Bb8 Rac7 Nb6+
1b2r1Rr/5n1B/n7/KPkN1QRB/1N1b1P2/2q1pnq1/2bNnn1R/6Br b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 c4 Ke7 b4 Kd6 b6 h3 b5 h4 g5 e3+ Kc2 e4 Kb3 d3 Ka4 h2 b7 d2 g6 h3 g7 e2 Nf3 e1N Bg2 e3 Nc3 Qc7 Nb1 Nh6 g8B Nf7 Rf1 h1R Qe2 d1N Bd2 h2 Rf2 Na6 b8N Kc5 Qf1 d5 Bh3 d4 Qd3 Bf5 Nc6 Bd6 Bg4 Re8 Bh5 Bh7 Re2 Nf2 Nc3 Qc8 Nd5 Bb8 Qc2 d3 Ncb4 Qc7 Bc3 d2 Qf5 d1N Nd2 Nf3 Rb1 Bg6 Bh7 Qc6 Bf6 Qc8 Bh4 Nc3+ Ka3 a4 Rg1 Qc7 Rg5 Qa5 Qe6 Bc2 Qf5 Rg1 Bg3 h1Q Bh2 Rf1 Bg1 Qh2 Rg4 Qg3 Rg5 Nh1 Rh2 Ne2 Bg8 Nf2 Bh7 Kd4 c5 Re1 c6 Kc5 Ka2 a3 c7 Rc1 Nc6 Qc3 c8R Re6 Rcg8 Re8 Ncb4 Rd1 Rg2 Rc1 Bh2 Rh1 Bg1 Qd3 Rh2 Qc4+ Ka1 a2 Kb2 a1B+ Ka3 Bd4 R8g6 Be4 Ka4 Qc3 Ka5 Bc2 Rg8
2q4r/R3N1Kn/rRR1Nr2/Qpbr2BB/6n1/3bP2b/q1B3P1/kr1N2q1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 f5 d4 b5 a5 h5 d6 c5 a6 b3 d5 b2 a7 h3 d7 h2 d6 h4 Ke6 f3 Kf7 h3 Qd2 Kb3 e3 f4 Qd4 f2 Qd2 c4 Ra5 f3 Qd3+ c3 Kg6 Nh6 Qd1+ c2 Be2 f1B Qd2 f2 Bh5 Ng4 Nc3 b1Q Nf3 Qa2 Ba3 c1R Nh4 Rb1 Nd1 Bd3+ Nf5 f1R Bc5 Qc7 d8N Nd7 Ne6 Ndf6 d7 Nh7 d8R Qc6 Bb4 Bc5 Kg7 Bd7 Ra4 Qc8 Ne7 Rf6 Rf1 h1R Ra5 Qb8 Rc8 h2 Rc6 Qc8 Raa6 Rg1 Rab6 h1Q Ba3 Qh2 Qa5 Rh1 Rf4 Qg1 Ra4 Rh3 Bb2 Rhf3 Be5 R3f5 Bf4 Rd5 Bg5 Kc2 Nf2 Kb2 Nd1+ Ka1 Ra3 Rb8 a8B Rb7 Nd4 B7f5 Ne6 Ra7 Bb7 Qa8 Bc8 Ra6 Bd7 Qc8 Bde8 Nh2 Beg6 Bh3 Be4 Ng4 Ra4 Bf1 Bc2 Bd3 Rd4 Re5 Rd7 Rd5 Ra7
KBk3N1/nR1nB1n1/5bPr/1RbR1B1Q/5q2/q2NN1r1/P1pq3n/4nb2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 h5 Kd4 c5+ Kc4 b5+ Kb3 e5 f4 c4+ Kb2 b3 Kc3 b4+ Kb2 e3 d4 h3 g4 h2 g5 h4 d6 h3 g6 e2 f5 e1B d5 e4 f6 e3 f7 e2 Qd2 Nc6 Qd3 Rh6 Bg2 Na7 Na3 Bh4 Nf3 e1N Qe2 Nf6 Nc2 Ba6 Ne5+ Kc8 Ne3 Nd7 Rb1 Bf6 Be4 Qc7 Rf1 h1N Qh5 h2 Rf5 Nf2 Bd3 B8e7 f8N h1N Nh7 Ng4 Rg5 Rb8 Bf5 Ng3 Bd2 Rb6 Bc3 Qb8 Nd3 Nh2 Be5 c3+ Kc1 c2 Kd2 Bg7 Nf6 b2 Ng8 b3 Kc3 Bgf6 Kd4 Rb5 Kc4 Qa8 Bf4 Rc5+ Kb4 Rc3 Ka5 Qb8 Ne5 Bf1 Nd3 Qb4+ Ka6 Qe4 Be5 Qg2 Bf4 Qd2 Be5 Ne2 Bf4 Nd4 Be5 Ne6 Bf4 Kd8 Kb7 Ng7 Ka8 Bf8 Rd1 b1Q Be5 Nb8 d7 Qb2 Rb1 Qa3 Bd6 b2 Be7+ Kc7 d8R Nd7 d6+ Kb6 Rb8+ Kc6 Rd1 b1Q Rb7 Qbb4 Rb1 Qf4 R1b5 Ne5 d7 Rb3 d8B Nd7 Bb4 Bc5 Be7 Rc3 Bh3 Rb3 Rd5 Rc3 Bf5 Rb3 Rb8 Kc7 R8b7+ Kc8 Ba5 Rc3 Bc7 Rb3 Bb8 Rc3 Nf2 Rd3 Nc4 Rf3 Nd3 Rg3 Ne3
2KN1n2/5N1B/n1P1r2B/R4nr1/3Rk1q1/1Q1rbqp1/2qPn1Nn/RB5b b - - 0 1 illegal: No proof kernel
N1Rn1q2/p2Q1R2/rbb5/b2nBP1P/B4krb/NK3br1/1N2B3/R3b2b b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 e5 b4 d5 h4 g5 b6 e3 b5 d3+ Kb3 d2 c5 e4 h5 d4 c6 e2 c7 e1B b7 d3 b6 g3 Ra2 g2 Kb2 e3 Qc2 d1B Rh3 g4 Rg3 e2 Ra1 Nc6 b8R Bd7 c8B Nf6 b7 Be7 Nd2 Rh6 Nb1 Qf8 Qb3 d2 Qb5+ Nd5 Nf3 g1B Ne5 Bb6 Na3 Bh4 Nd3 Nd8 Rf3 g3 Ka2 g2 Bb2 g1R Be5 Ba4 Nb2 d1B Qc6 Be6 Bd7 Bea5 Rc8 e1B b8N Rg3 Be2 Rf6 Qb7 Bc6 Na6 Rfg6 Qc7 R6g4 Qd6 Rb8 Nc7 Ke4 Na8 Bf7 Bc4 Bg6 Rf2 Bf3 Kb3 Ke3 Be8 Bge4 Be2 Rb7 Rf1 Re7 Qd7 Re6 f5 Bh1 Rf4 Bef3 Rb4 Bd4 Rb7 Bdb6 Qd6 Rh6 Rf7 Rf6 Qd7 Ke4 Bc3 Kf4 Be5+ Ke3 Bc7 Ba4+ Ka2 Bc5 Be5 Ra6 Qe6 Bcb6 Bc6 Bb5 Kb3 Ke4 Bb7 Bd7 Bc6 Be8 Bcb5 Bc6 Ba4 Ke3 Qd7 Ke4 Bf6 Kf4 Be5+
4r3/k1qb3r/1qQ1r1N1/1B2N2b/1P1BPpqB/q2R4/1Rn5/1Kn1NRbn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 b4 Kd7 e4 Kc7 g4 Kb7 c4 a5 Kc2 h5 c5 f5 c6+ Ka7 c7 d3+ Kb2 d4 g5 f3 g6 f2 g7 d2 Ra2 h3 Be2 f1R Rh2 a4 Bg4 d3 Na3 h4 Rf2 h2 Nf3 h1N Rg2 h3 Qb3 d1Q Nc4 a3+ Kb1 h2 Bh3 d2 Rf2 Bd7 c8R Nf6 g8N Nh5 Bg2 Qb6 Ng1 Rh7 Rc2 Bc5 Rf3 Nc6 Rf8 Re8 Ne7 N5g3 Ng6 Nd4 Rd3 Nge2 Rb2 Nc2 Nf3 Bg1 Nce5 Rf2 Bf1 Rg2 Ne7 Rg6 Qd5 Re6 Qc6 Qc7 N7g6 Qb6 Rh8 f4 Ne1 Ned4 Rg8 Qg4 Rg7 d1B Be3 Bf3 Bf2 Nb3 Bh4 Nc1 Be2 Qg5 Bf1 Bh5 Be2 Qg4 Bf1 Qc7 b6+ Kb8 b7 Ka7 Bf6 Ng3 Rg8 h1Q Bh4 Qhf3 Rh8 Qf2 Rg8 Qfb6 b8B+ Ka6 Ba7 Nh1 Qc3 Qa5 Bd4 Qab6 Qc4+ Ka7 Qc6 Bf2 Ne7 Qf3 Rg1 Qg4 Rc3 Be3 Bb5 Bf2 Rf1 Bg1 Rbb3 a2+ Kb2 Rg6 Rd3 Rf6 N7g6 Rfe6 Kc3 a1Q+ Rb2 Qa3+ Kd2 Ne2 Kd1 Nc3+ Kc1 Na2+ Kb1 Nc1 Rdb3 Qb7 Rh3 Qc7 Rd3
2nBnbK1/N6p/4R1R1/1q2N1r1/5Bq1/R1nP1nNr/P1k1Qqb1/4r1bB b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 g5 b5 g6 c5 d6 f3 d7 f4 Ke6 h3 Kf7 h2 g7 f2 Ba3 f3 Qe1 b3 Bc1 b2 Qd1 b4 Bg2 f1Q e4 Kd3 e5 b3 e6 c4 e7 f2 e8N c3 Ne2 c2 Nf6 Nc6 Nec3 Bb7 Bh3 Na7 Qg4 Bg2 Qh4 Nc8 Qg4 Ra3 Nh5 Qg5 d8B Nf6 g8R Ne8 Rg1 h1R Qf4 Qg4 Rg6 Rg8 Nb5 Qe1 Qf6 f1N Qa6 Nh2 Ng3 Nf3 Re6 Rg5 Na7+ Qc4 Qb5 Qf2 Qe5 Qg4 Qe2+ Kd4 Rd1 Re1 Rg6 Ne5+ Kg8 Nf3 Nc3 b1Q Nce4 b2 Nd6 Rc3 Nc4 Re3 d3 Kc3 Ne5 Rh1 Qf1 Re1 Bf4 c1B Qe2 Be3 Rd2 Qc1 Rd1 b1N Rd2 Qa3 Rb2 Qa6 Rb4 Qb5 Ra4 Qf1 Ra5 Bg1 Ra6 Qf2 Ra5 Bf1 Bg2 Rh3 Bh1 Bg2 Ra4 Nbd2 Ra3+ Kc2 Qe3 Ne4 Qe2+ Nfd2 Rb1 Nc3 Rb4 Qc6 Rb6 Qb5 Qf1 Nf3 Re6 Re2 Qe1 Re3 Qf1 Re1 Qe2+
rb2kb1r/5NpB/r1RB3q/3b2qN/B1rnQ1R1/3q4/1NPn1P2/1RK4n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 d5 h4 b5 a4 e5 h5 d3 a5 e4 f6 e3+ Ke1 b3 h6 b4 a6 e2 Kd2 e1R a7 b2 h7 g3 Ra3 g2 Rh6 d4 Rh1 b3 Nc3 b1Q Ra4 b2 Rh6 Re6 Ra1 Ne7 Na2 Bb7 Nh3 g1B Qf3 Nf5 Nb4 Ng3 Nf4 Nc6 Qe4 Nh1 Nh5 Bh2 Ra4 Bb8 f7+ Kd7 Kd1 d2 Bb5 Qg5 Nd3 Qa2 Rc4 b1N Nb2 Qa6 Ba4 Kd8 Rb4 Qd3 Rg6 Qh6 Rg4 Qg3 Ke2 d1R Bf4 Nd2 Bd6 Qh4 Kd3 Q4g5 Rc4 Rg1 Ke2 Rg2 Kd1 d3 Kc1 Nd4 Rc7 Bd5 Rc6 Rg8 h8N Rh2 Ng6 Rh8 Ne5 Rh4 Nec4 Be7 f8R+ Kd7 Rf7 Ke8 Ne5 Bf8 Rb7 Nc4+ Kb1 d2 Nf7 d1Q+ Ka2 Qf3 Kb1 Nd2+ Kc1 Qd3 Rbb6 Bc7 Rb3 Rc8 a8B Bb8 Rb7 Rh3 Rc3+ Qb5 Nd3 Rd8 Be5 Bc6 Qf5 Bc7 Bf4 Bf3 Rc5 Ra6 Bd6 Bc6 Rb6 Qc4 Bb7 Rda8 Rb1 Bb8 Nb2 Rc3 Bc8 Qd3 Qe4+ Qe5 Bf5 Rc4 Bh7 Qe7 Bb3 Bd5 Rc6 Qe5 Ba4 Qe7 Ne5 Qeg5 Nf7+
4r1b1/3pNr1B/8/n1kq4/qbbPP1K1/Qr3BNn/3R1BNR/n1q2rR1 b - - 0 1 illegal: No possible last move, all moves rejected
r3NBr1/pbn1k1Rb/1q3n1B/n3NBPn/1b6/2r2PnR/2R5/1NQ1Kn2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 c4 d5 g4 h5 b4 e5 b5 d3 f3 d2+ Kf2 a3 g5 a2 f6 e4 c5 d4 f7+ Ke7 c6 h3 b6 h2 c7 h4 b7 e3+ Ke2 h3 Qe1 d1B+ Kd3 e2 Kd2 d3 Bb2 Bc2 Bg7 Nf6 Qg3 e1R Be2 Na6 b8R Rc1 Rb5 Bb7 Qf4 Rg8 Rc5 Qd6 Bh6 Qb6 Na3 Bb1 Nc4 Rc3 Ne5 Bc2 Rf1 a1N Ke1 Nb3 Qc1 Na5 Rf2 Bb1 Rc6 Bc2 Bd1 Bb1 Bc2 d2+ Kf1 d1N Ke1 Ne3 Bf5 Be4 Rc2 Nf1 Ne2 Bd3 Be6 Bh7 c8N+ Kd8 Nd6 Ke7 Bf5 Nc7 Rg1 h1N Ne8 Nhg3 Rh1 h2 Rd6 Rc5 Nc3 Ngh5 Nb1 Rc3 Rc6 Kd8 Re6 Bb4 Rd6+ Ke7 Rc6 Ne4 Rg6 Nef6 Rg7 Ba3 Rg1 h1N Rg3 Bb4 Rh3 Nh1g3 f8B+
N3b2r/1B2b1q1/n3KR1r/2q1Rp1N/1b2bbbB/1QPnbR2/2NP3B/3k4 b - - 0 1 illegal: No proof kernel
nBR5/r1r2rnn/2n1bP2/2N2n2/R1QrpN1P/1B4bR/1k2K3/1NqB2r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 h4 Ke6 b4 Kd5 b6 g5 b7 a5 c3 e5 b5 e3 b6 a4 f5 a3 f6 e4 Rh3 a2 Rh1 g3 Be2 g2 Bf1 g4 Nh3 g1R Qd2 d3 c4+ Kd4 c5 d5 c6 g3 c7 e2 Rh2 g2 Kf2 e1R Nc3 Ra7 Nd1 Ne7 Ne3 Rh7 Qd1 Kc3 Ba3 d4 Qa4 d2 Ba6 d1R Ng5 d3 Rb1 a1N Rh1 d2 Nc4 Nd7 b8R Nb3 b7 Na5 Nb6 Rf7 Bd6 Nf5 Rh2 Ng7 Ra1 Kb2 Nd5 Nc6 Ne6 Nb6 Be2 Na8 Nef4 Be6 c8B Qc7 Nc3 Rc1 Bh5 Red1 Qc4 Be7 Be5 Bd6 Rh3 Rc2 Ra4 Rcc1 Nfd5 Rc2 Bh2 Bg3+ Ke2 Qf4 Nb1 Qg5 Qd3 Rc4 Nf4 Rdc1 Bd7 d1N Bf3 Rd4 Qc4 Ne3 Rc8 Nef5 b8N Rc3 Na6 Qh6 Ng6 Qc1 Nf4 Na5 Qd5 Rcc7 Nc5 Nc6 Qc4 Bf2 Rd8 Rh1 Ra1 Rc8 Ng6 Na5 Ba4 Nc6 Bb8 Bg3 Bb3 Rcc7 Ra4 Rf1 Rc8 Rfd1 Rh1 Rf1 Nf4 Rfd1 Re1 g1N+ Kf1 Nh3 Be2 Ng5 Bf3 R1d2 Bfd1 Nh7 Re2 Rc2 Rh2 Rg2 Rh3 Rg1+ Ke2
1nq4R/n3K1Bq/b1R2n1P/1B3R1r/n2Pk2Q/Npn4r/1b5N/rnN1B3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kf6 h4 Ke5 a4 f5 d6 c5 h5 b5 a5 g5 a6 c4 d7 g3+ Kf3 b3 d3 c3 a7 c2 Qe1 b4 Be3 c1N Bg2 b2 Bc5 b3 Ne2 Nf6 Qd1 Na2 Bh3 g2 Bb6 g1N+ Kf2 f3 Kg3 g4 Kh4 f2 Kg5 f1Q Ba5 f4 Be1 f3 Nc1 g3 Na3 f2 Qg4 b1N Qh4 g2 Kg6 Be7 Kf7 Nf3 Rh2 Qc7 d8B g1N Bd7 Ba6 Bb5 Ne2 Rg2 Qh1 Rg6 Kd4 e5+ Kd5 d4 f1R e6 Nac3 Rh6 Na4 Ra2 Bf8+ e7 Nec3 Rf2 Qc8 e8N Qhh3 Bc7 Rh1 Be5 Qhf5 Rg6 Rh3 Rf1 Bh6 Ke7 Bf4 Rf2 Ke4 Rh6 Ng5 Rf3 Nf7 Rf2 Qh7 Rf1 Nfd7 Rc6 Nd6+ Bg7 Nf6 h6 Rf8 Bc4 Ndb5 Rf3 Nfd7 Be2 Rf5 Bf1 Rh5 Nf6+ Kf5 Ng4 Ke4 Rf2 Bd2 Rf5 Nf6 Na2 Bc1 Bc4 Bb2 Nc1 Nbd7 Be2 Rb8 a8R Na7 Bc4 Rb5 Bf1 Ra5 Be2 Nb8 Bb5 Nb6 Nc4 Ra1 Na3 N8d7 Rb8 Nba4 Ra8 Qb7 Rd8 Qc8 Rh8 Nb8 Nh2+
4R2q/3bQ1B1/b1k2P2/2NNq3/1bB2b1r/b2b1pq1/KRnPr2n/1B1RN3 b - - 0 1 illegal: No proof kernel
N1q5/1b4b1/N2b1Pb1/kn1pn2B/2N1P1RR/nrr4r/1n5B/KQR3Bb b - - 0 1 illegal: No proof kernel
3n1r2/1b5P/nRNb1NK1/Q1b2RBR/2p1B1Bq/k4n2/bbPn4/N4rr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 g5 e4 gxf4 g5 dxe4 Qg4 hxg4 Ke2 Kd7 b4 Kd6 d4 f5 h4 a5 g6 e5 h5 c5 d5 f3+ Ke3 f4+ Kf2 a4 g7 g3+ Ke1 a3 Kd2 g2 h6 f2 h7 a2 b6 e3+ Kd3 e2 Ke4 e1N b7 f3 b5 Na6 b8R Nh6 g8B Bb7 b6 Nf7 Kf5 e4 Ne2 g1R Rh2 e3 Nbc3 Qh4 Bh3 f1N Nd4 f2 Nb3 e2 Bg4 Nd2 Kg6 f1B Rh3 Nd8 Ne4+ Ke5 d6 Nef3 d7 e1B Nf6 Kd6 Rb1 a1B Bd5 Bb2 Na1 Bg3 Be4 Bc4 Rh2 Ba2 Rh1 Ba3 Rb5 c4 Rf5 Bb2 Rh2 Bge5 Rh3 Kc5 Rh2 Bd5 b7 Kb4 Rh1 Bc5 Rh3 Ne6 d8N Rf8 Nc6+ Ka3 Rh2 Nd8 Rh1 Nb3 Bg5 Nbd2 Rh2 Bed6 Rh3 Qg3 Rh5 Ra7 Ra8 Qh4 b8Q Raf7 Qb5 Bf4 Rb8 Bfd6 Na7 Bc6 Rb6 Bb7 Nc6 Re7 Bd5 Ree1 Be4 Ref1 Qa5#
2R3r1/1r4P1/q1nqPB1b/3bb1N1/1qqQ1R2/1BB2pNK/5q2/qkRnN3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Kf6 g4 Ke5 Kg2 Ke4 b4 f5 c5 d5 e3 h5 b6 a5 b5 a4 g5 h3+ Kh2 h4 g6 f3 c6 f4 c7 d3 b7 f2 b6 d2 Be2 f1Q Bg4 Kd3 e4 a3 e5 f3 e6 a2 Na3 d4 Nb5 Rh7 Ne2 Nf6 Nbc3 Nd5 Bh5 Qd6+ Ng3 Qb4 Na4 Bh6 Ne4 Nc3 Bb2 Nc6 b8N Bb7 Na6 Rg8 Rc1 a1B c8R Qe1 Rg1 Qf2+ Rg2 Ba8 Ng3 Rb7 g7 Qc4 Qg1 d1Q Rc2 Qde1 Be8 Nd1 Nc3 Qed2 Nce4 Qdb4 Bc3 Bb2 Rc1 Ba1 Rb1 Kc2 Ng5 d3 Nc5 d2 Nd3 Bb2 Bf6 Be5 Ra1 Qa6 Ra4 Kb1 Ne1 Nb2 Ra5 d1Q Ra4 Qdd6 Bd7 Nd1 Be8 Qc2 Qd4 Qcc4 Rc2 Nc3 Kg1 h2+ Kf2 h1Q Bg6 Re7 b7 h3 b8B h2 Bc7 Rf7 Ba5 Ra7 Be4 Rb7 Bd5 Qg2+ Ke3 Qcb5 Bb3 Nd1+ Ke4 h1Q Kf5 Qhg1 Kg4 Q2f2 Kh3 Q4c4 Bc3 Qbb4 Ra5 Bf4 Rf5 Be5 Rf4 Qgf1+ Kg4 Qa1 Kh4 Qca6 Kg4 Qfc4 Kh3 Rb8 Ne2 Na7 Kg4 Bd5 Ng3 Nc6 Kh3 Rb7 Rc1+
8/R3kPqN/n2pn1bR/r2B1n1N/1nB4r/b2r1PrQ/NbrBR3/1K6 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 a4 e5 g4 h5 c4 d3 f6 h3 a5 b3 f3 b4 g5 h2 g6 e4 c5 b2 g7 e3+ Ke1 d2+ Ke2 h4 Kd3 h3 Kc2 e2 c6 e1B c7 b3+ Kd3 Qe7 a6 Nh6 g8B Nf7 a7 Ng5 Kc3 Qg7 Ra2 Ba3 Ra1 d6 Ra2 Bf5 c8N Bg6 Bgc4 Ne6 Qe2 d1R+ Qd2 Bf2 Bd5 Bd4+ Kc4 Kf8 Nc3 b1R f7 b2 Nb6 Ke7 Kb3 Rc8 Nge2 Rc5 Rg1 h1N Qh6 h2 Nf4 Ng3 Rh1 Nf5 Kc2 Rc6 Nd7 Rc5 Rg1 h1R Nf8 Rh3 Rg5 Rg3 Rh5 Ra1 Rh4 b1N Qh8 Rc8 Rb2 Ra2 Bfc4 Rd8 Qh5 Rd3 Qg4 Bf6 Qh3 Be5 Nd7 Rh8 Nf8 Rh6 Nh7 Rh5 Kb3 Rh6 Re2 Rc2 Bd2 Bf6 Rg4 Rh5 Rg5 Rh4 Rh5 Na6 Rh6 Rc8 a8R Rc5 Nh5 Ra5 Be4 Rd4 Na2 Nc3 Bb7 Nd5 Ra7 Rd3+ Nc3 Rc1 Ka2 Rc2+ Kb1 Ndb4 Na2 Bfb2 Bbd5+
1N2Rb1n/2P3b1/B1NkPN1r/5rB1/1R1n4/1Bnbb2r/Qq3rp1/1R1b2K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kf2 Ke7 h4 d5 b4 a5 e4 g5 c4 f5 h5 g3+ Kg2 d3 h6 f4 h7 d4 c5 g4 e6 d2 b5 d3 b6 a3 c6 a2 e5 a4 b7 a3 c7 Ra6 Bb2 Qd4 Qe2 d1B Qe4 d2 Qe1 Nh6 Nf3 Nf7 Rg1 Nc6 Kh1 g2+ Kh2 g3+ Kh3 Qb4 b8N Nd4 Bc3 Qb2 Qf2 Bb7 Rh1 g1B Kg2 Be4 Rh4 Bd3 Ba5 Rb6 Nc3 Rb3 Qe2 Be3 Rb1 a1R Ne4 a2 Nf6 Rb5 Kh1 Rb6 Qf2 g2+ Kg1 Ra6 Ne1 f3 Nc2 Bf5 Bc4 Bd3 Bb3 Rd6 Nb4 Rd5 Kh2 Rb5 Qe2 f2 Rf4 f1R Bb6 Rf2 Kg1 Rg8 h8R Rg3 Re4 Rh3 Rhh4 Bg7 Ba5 Nh8 N4c6+ Kf8 Bc3 Rd5 e7+ Kf7 e8B+ Ke6 Nb4 Bf8 Bb5 Ke7 e6 Kd6 Ba6 Rdf5 Rh7 Rh6 Re7 Rh3 N4c6 Rh6 Rc1 Rb1 Re8 a1B Ba5 Rh3 Rc4 Rc1 Rb4 Rcc5 Bb6 Rfh5 Ba5 Rcf5 Re5 Rh6 Reb5 B1c2 Rb6 d1N Rb7 Nc3 Bb6 Bd1 Qd2 Qb1 Qa2 Ndb5 Bd4 Qb2 Rb6 Bc1 Be3 Nd4 Bg5 Be3 R6b5 Qa3 Ra5 Ncb5 Nd5 Nc2 Qb1 Bag7 Nf6 Qb2 Ra1 Ncd4 Qa2 Nc3 Rb1
nb5b/PN1k1Rp1/1B1Nn3/3bRn1r/Kbn1NrB1/Pr1Q4/5qB1/5Rn1 b - - 0 1 illegal: Other
Nk4r1/PP6/2R1BB1R/b4N1b/r2nb1N1/BQR1pnbK/r2n1q2/2bn4 b - - 0 1 illegal: No possible last move, all moves rejected
2qN2qk/3q2q1/1NB2Rb1/NP3rPr/B5pB/1bn3bR/1n4R1/2KQ1bq1 b - - 0 1 illegal: No proof kernel
1bqr1kRb/1Q1n2RB/6p1/qN3N2/nbP5/b2R2P1/4r2B/n1bB1NKn b - - 0 1 illegal: No possible last move, all moves rejected
1n1B4/Kn1k1bBq/Pr1Q3N/NN5r/1pRrb3/q2P4/BRbb1r1R/b7 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 g4 h5 e4 c5 a4 f5 d6 f3 Ke3 h3 g5 f2 a5 b3 a6 h2 d3 c4 Kd4 f4 Kc5 h4 e5 b4 g6 f3 g7 b2 e6 h3 e7 c3 Qc2 Be6 Qe2 c2 Ra3 Kd7 e8N Rh5+ Bg5 c1B Rb3 Nf6 g8R Bg7 Qe5 Bf7 Na3 b1B Nc7 Ne8 Kb6 Bc2 Bf6 Bd2 Bg2 f1R Ne2 f2 Nc4 Ra7 Ng3 Rb7+ Ka5 Bh8 Rb2 Rb6 Nb5 Re1 Be4 f1R Bd5 Re4 Bg7 Rd4 Nf5 Rf2 Nh6 Qg5 Rc1 h1B Qf6 h2 Be6+ Kc6 d7 Nd6 d8B Be4 Bd5+ Kd7 Re8 Bh1 Re2 Be4 Qf4 h1Q Qf6 Rf5 Rh2 Rf2 Qf4 Qf5 Qg3 Qh7 Qe5 Ne8 Qd6+ Kc8 Qf4 Bb3 Rbc2 Rc6 Ra1 Qc1 Bf8 Nd6 Rb1 Kd7 Rc3 Bf6 Bg7 Bc2 Rbb3 Rc7 Kb6 Qa3 Rb1 Nb7 Na5 Rc6+ Ka7 Rb6 Ba2 Rdd6 Rc4 Ba1 Rb2 Rd4 Qd6+
1B5n/2P5/Kb2b3/b2qknBR/3Rr1p1/bPr2rrN/1Nr1N1R1/1q1B1Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 f5 h4 g5 e4 a5 c3 a4 b3 a3 b6 a2 Kb5 d3 h5 f3 h6 f2 b7 d2 h7 g3 c4 g2 c5+ Ke5 c6 d5 c7 f4 Rh2 g4 Nc3 d4 Nh3 g1B Bg2 f1R Ng5 d3 Qe1 d1Q Rh4 f3 Qf2 d2 Bh1 Ra4 Ba3 Nh6 Ne2 Qb1 Qe3 d1R Qb6 f2 Qa6 Nc6 b8B Rd3 Rh2 Rg3 Bf3 Nf7 Nh3 Rc1 Rg2 f1R Be7 Be6 Bg5 Nd4+ Kb6 Bb4 Kb7 Re8 h8R Rc2 Rh5 Nh8 Qc4 Ba5 Ka6 Qd5 Qb5 Qe1 Rd1 Nf5 Rd4 a1B Qc4 Bb2 Qd3 Kd6 Qd1 Rac4 e5+ Kc5 Qd3 Qb1 Qd1 Rf2 Qe1 R4c3 Qf1 Bf7 e6 Kd6 e7 Ke5 Rh4 Be6 Rh5 Rc8 e8N Ba3 Nd6 Re8 Nc8 Re7 Nb6 Re8 Na4 Re7 Be4 Rff3 Nb2 Re8 Ra4 Bgb6 Rd4 Rfe3 Bf3 Rf8 Bd8 Re4 Bg5 Ng7 Nc1 Rf7 Bd1 Rff3 Ne2 Nf5 Bc1 Rc6 Be3 R6c3 Bg5
3rBB1n/1R1qb1K1/1r2q3/1b2N1bP/1n2Nk1N/R4r2/B2pP1b1/2r1qRQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Ke6 b4 Ke5 c4 g5 b6 a5 b7 f5 c5 d5 h5 g3+ Kf3 g4+ Kg2 d3 b5 a4 c6 d4 c7 d2 b6 a3 Qa4 d1Q Qe8+ Be7 Bb2 a2 Ba3 d3 Rh3 f3+ Kh1 f2 Kg2 d2 Bc1 f4 Qf8 f3+ Kh1 g2+ Kh2 Ra6 Kg3 Nh6 Nc3 Qe1 Qe8 Nc6 b8R Bd7 c8B Nf7 b7 Nb4 Ne4 Bb5 Bd7 Rb6 Qg8 Qe8 Bc6 Qd7 Ba3 Qe6 Rb1 a1Q Be8 Qd4 Ra1 Qdd7 Qg7+ Kd5 Kf4 g3 Qg6 Rg8 Rd1 Nh8 Ra1 Bf8 Kg5 Be7+ Kh6 Ke5 Kh7 Rf8 Kg7 Kf4 Rh1 Na2 Bc5 Nb4 Ra3 Bg5+ Bf7 Rd8 Bf8 Be7 Be8 Ke5 Nh3 g1R Nhg5 Kf4 Bh3 f1R Bg4 f2 Nf3 g2 Nh4 Qb1 Bh3 Rc1 Bg4 Rgf1 Bf5 g1B Qg2 Bh2 Qg1 Bg3 Bfg6 Bg5+ Bgf7 Bh2 Rc8 Be7 b8N Bg5 Rc7 Bg3 Nf3 B3h4 Nc6 Be7 Nce5 Bhg5 Ra5 Qbb3 Ra6 Qd1 Nh4 Qe1 Raa7 Rc3 Rcb7 Rf3 Qg2 Rg1 Ra3 f1B Qf2 Bg2 Qd4 Qf5 Ba2 Qfe6 Qc5 Qf2 Qd4 Rc1 Rf1 Qe1 Qg1
2R1K3/b5Br/2P1kBP1/2pN1b2/RN3rB1/nrb1n2Q/1b1r1N1R/q3qn2 b - - 0 1 illegal: No proof kernel
qB1k4/n1B1bR1r/p1P4N/Kb1Q1R2/4N1qB/PRnnr1N1/4q3/1b3n1q b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 d4 b5 Kd2 e5 Kc3 g5 Kb4 e3 h4 a6 f4 g3 c4 e2 h5 e1N h6 e4 f5 g4 a3 e3 d5 e2 f6 Ne7 d6 Rh7 c6 Bd7 c5 Nf5 c7 Be7 c8R Ne3 Rh5 Nf1 Rc7 Nd3+ Ka5 e1Q+ Nc3 b4 Rb1 b3 Ne2 g1Q Bf4 b2 Rf5 g2 Ng3 Qe2 Nce4 Bb5 Qb3 Qh2 Qd5 g1Q Be5 Qc8 f7+ Kd8 f8B Qhh1 d7 Ra7 Bd6 Qb7 Bg7 Qa8 Bge5 Qd4 Rc1 b1B Rc3 Qc4 Rb3 Nc6+ Kb6 Rh8 h7 Re8 h8B Qd4 Bhf6 Qdg1 Bh4 Qgg2 Nh5 g3 Bf4 Qgg1 Rb7 g2 Nhg3 Qd4 Bb8 g1N Bfd6 Qc4 Rc7 Qg4 Rb7 Ne2 Rc7 Ncd4 c6 Nc3 Ka5 Qe2 Qe5 Qg8 Qd5 Qgg4 Nd2 Bf6 Re5 Ba4 Qg8 Ndb5 Qd5 Bg5 Rf5 Re3 Nde4 Rb7 Be5 Ke7 d8N+ Ke8 Bf4 Na7 Bd6 Bb5 Nf7 Bf6 Nh6 Kd8 Rg7 Rf7 Rh7 Be7 Rg7 Rf8 Rh7 Rh8 Rhf7 Rh7 Bdc7+
3n1rrB/6b1/2NB2nr/1Ppn1bNP/5R2/1N1BR1Rr/3n1Knq/k3nQ2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 d4 Kd7 b4 Ke6 e4 f5 h4 c5 h5 a5 b6 g5 e5 Kd5 e6 a4 e7 a3 e8N c3 b5 g3 b7 g4 Nd2 g2 Ne2 g1R Nc4 f3 Nd2 a2 Rh4 g3 Rh3 g2 Qa4 f2+ Kd1 f4 Ng3 c2+ Ke2 f3+ Ke3 Nf6 Qa6 Nc6 b8R Qc7 Ne2 Bf5 Rh4 Rh1 Qa7 g1R Rb1 a1N Rg4 Rh3 Rb4 Qh2 Qa3 Rh6 Bb2 c1N Ng7 Nd3 Re8 Nf4 Nb3 Rgg3 Ne6 Nc2+ Kd2 Ke4 Qa1 Rb8 Kd1 Kd3 d5 Rc8 d6 N6d5 d7 Rd8 Bg2 f1N Bh8 f2 N2d4 Nd2 Rg5 Rc8 d8B f1N Bc7 Rg4 Qb1 Kc3 Be4 Ra8 Bd3 Nfe3+ Kc1 Rc8 Bd6 Neg2 Kd1 Rgg3 Re7 Re8 Rg8 Nd8 Nc6+ Rg7 Rd4 Rf7 Rg6 Bg7 Rg3 Rg8 Ng5 Ng6 Ke2 Rff8 Qf1 Kb2 Ree3 Nce1 Rf4 Ka2 Kf2 Kb2 Nba5 Ka1 Nb3+
6rB/3P1rR1/NQK3bb/1p5N/1PbrN1k1/R1qrbqB1/7b/3nRB1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 f5 dxc4 f6 Nd7 a5 Nb6 axb6 exf6 Nf3 f5 Ng1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 a5 b4 f5+ Ke5 h5 g4 c5 e4 c3 d5 a4 b7 a3 b8B h3 d6 a2 Kd5 c2 e5 h4 e6 c4 e7 h2 e8N h3 Ba3 c1B Qe1 f3 Ba7 c3 Qf2 c2 Ng7 f4 Qg3 f2 Bc5 f3 Qe5+ Bf5 d7 Ne7+ Kd6 Be3 Ba7 c1Q Qe6 Nd5+ Ke5 Rg8 Ne8 Qc3+ Bd4 Bg6 Nc7 Bh6 Kd6 Qf6 Bc1 Ra3 Na6 Qf5 Bd3 f1R Ne2 f2 Nd2 Qf3 Bh8 Rd1 Bb2 f1R Ng3 Kh4 Rg1 h1B g5 h2 Nde4 Bg2 Bc4 h1R Kc6 Rd4 Nh5 Rb3 Re1 a1B Be5 Bh3 Rg3 Bg4 Qf6 Be6 Rh3+ Kg4 Bg3 Nf4 Qd8 Nd3 Qc7 Nf2 Qb6 Qd3 Bc3 Nd1 Bb2 Qd2 Bd3 Rf2 Bf1 Rbd3 Bc3 Bc4 Bb2 Bf5 g6 Qc3 g7 Bh7 Kc5 Bg6 Kc6 Rf8 g8R Rf7 Ba3 Rg2 Bc1 Bb2 Bd2 Bc1 Rg7 Bg1 Bg5 Bh2 Bf6 Bcf4 Rh7 Be3 Bh8 Ra2 Rg7 Ra1 Nb8 Ra8 Na6 Rg8 Nc7 Qe2 Na8 Qa3 Be5 Rc3 Qd8 Beg5 Qb6 Qc1 Re3 Qf3 Nc7 Qd2 Rd3 Be3 Na6 Qc1 Bg3 Qa3 Rd2 Rcd3 Ra2 Qc3 Ra3
2BbnNR1/4NKn1/1k5R/p2PrQ2/2B1b3/2npPqrN/1r3qRb/2q1B3 b - - 0 1 illegal: No proof kernel
1N1K2n1/1p2r1q1/1kr3n1/1b4R1/1p3RP1/nBb1B1Nr/1QPb2Rq/1NB3q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 e5 Kd3 h5 Kc4 d5+ Kb5 Kd7 a4 Kc7 f4 h3 g4 e4 a5 e3 a6 e2 a7 e1B f6 d3 f7 h2 f5 d2 f6 h4 Ra5 d4 Na3 h3 Qf3 d1Q Bd2 d3 Be2 Bg7 f8N Qd7+ Kc5 Nc6 f7 Rh7 Kb5 Bc3 Bc1 d2 Bc4 Nce7+ Kc5 Ng6 Nb1 Qe2 Bb3 d1N Qf6 Bed2 Qh8 Qg2 Ne2 Nb2 Rg1 h1Q Ng3 Qgh2 Rg2 Nc4 Qd4 Rb8 a8R Q1g1 R8a6 Rg7 Rf6 Na3 Rf4 Qe7+ Kd5 Bd7 Rb5 Be8 Nd7 Rc8 f8B Rh7 Qh8 Qg7 Nb8 Bd7 Rc5+ Kb6 Kd6 Bb5 Rg5 Rc4 Be7 Rc6+ Kd7 Qhh1 Ne4 h2 Kd8 Rh3 Bf6 Re3 Ng3 Re7 Re2 Qhg2 Be5 h1R Bd4+ Ka5 Bc5 Rh3 Be3 Q2h2 Rg2 Qh7 Rc5 Kb6 Qe5 Qg7 Qf6 Be1 Qd4 Bcd2 Qa1 Bc3 Qb2 Bed2 Rg5+
1rkr4/Bqpr2N1/4RQ2/KP1n1Bb1/1PbN1n2/nR1p4/1BNnb1n1/4R3 b - - 0 1 illegal: No proof kernel
5r2/p4P1B/b2n1N2/b3k3/r1R1Bq1R/p1N2b1K/1nn2Pn1/Q1qnN1BR b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 b4 Kf7 g4 Kf6 c4 h5 c5 d5 c6 e5 b5 d3 b6 h3 c7 e4 b7 e3 g5+ Ke5 f6 d4 g6 h2 f7 d2+ Ke2 h4 Kf3 a3 Kg2 h3+ Kg3 d3 g7 e2 Nc3 e1N Nb1 Na6 b8R Qg5+ Qg4 d1N Bg2 d2 Rb3 Nb2 Bf3 d1N Nc3 Nb4 Be4 Ba6 c8B Nf6 g8N Ng2 Bcf5 Ne8 Nf6 Nc2 Bh7 Nd6 Rb4 Bh6 Rb1 Raf8 Rc4 Qf5 Qg7 Bd2 Nb5 Ba5 Nc3 Re8 Be3 Rhf8 Bb6 Rb8 Bc7 Rb4 Bb8 Ra4 Nf3+ Ke6 Ne1 Ke5 Rg1 h1Q Qh8 Nd3 Rbb4 h2 Qg7 Qf4+ Kh3 Nh4 Rf1 Qg1 Bc7 h1B Bb8 Qgg5 Bc7 Bf3 Rh1 Ng2 Qh8 Ke6 Qg7 N3b2 Qh8 Ne8 Be5 Qc1 Bh2 Qgf4 Bg1 Kd6 Rb5 Ke6 Rh5 Nd6 Rh4 Rb8 Qc8+ Ke5 Qb7 Rf8 Qb6 Nd3 Qb1 N3b2 Qa1
2B3nK/2BNnB2/Rbk5/1q3rq1/4Rp2/nb1Rn1b1/Q2prP1P/N5rN b - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 g5 Kd3 a5 Ke4 f5+ Ke5 d5 e4 Kd7 c4 g3 c5 b3 b6 d3 b7 g4 Be2 g2 Qc2 d4 Ra3 d2 Bc4 d1N Bh6 d3 Ra4 d2 Qa2 g3 Bg5 b2 Bh6 Kc6 Rb4 a4 Bf7 a3 Rb3 Ra5 Rd3 Ne3 Bf4 Qb6 Ne2 Be6 Rd1 g1R Rc1 g2 Ng3 Rh5 Nh1 Rh4 Rc4 Be7 Ra4 Bb3 Bg3 Rb5 Ra6 Bd8 Bf4 Rg4 Bg3 Re1 Bf4 g1Q Bg3 Ne7 Kf6 Re2 e5 Rg7 e6 Ng8+ Ke5 Bh4 e7 Rg6 Bf4 Qg5 e8R Bg3 Re7 Ra5 Re8 Kb5 c6 Kc5 c7 Qb5 Qa1 a2 Na3 b1N Nc2 Na3 c8B Rg7 Qb2 a1B Re7 Nac4+ Ke6 Nc6 Bc7 f4 Qa2 Bd4 Re8 Nce7 b8N Qb4 Na1 Qb5 Bh5 Rg6+ Kf7 Na3+ Kf8 Rg7 Bf7 Rg6 Ra8 Rg7 Nd7+ Kc6 Ra7 Bb6 Ra6 Qh5 Rd5 Rg5 Rd3 Rf5 Kg7 Qg5+ Kh8 Ra4 Qb2 Rc4 Qb1 Rc1 Qb2 Rg1 Qa2 N7d5 Re5 Nde7 Re4
1qNB1R2/1R1rQrkB/2Bn2q1/4n1qP/5p1n/nK1N1b2/1RP2b1p/r6N b - - 0 1 illegal: No proof kernel
2qN2k1/3N4/rn1nn2K/2bpB2b/1P1R1BR1/p2Nr2q/P3bqR1/QB5q b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 b5 d3 bxc4 Be3 cxd3 Bh6 Nc6 Bc1 Nb8 Kd2 Kf7 Ke3 e5 b4 c5 g4 a5 f4 h5 g5 d5 f6 d2 f5 c4 Nh3 c3 Be2 c2 Rh2 a4 Qe1 d1B Qf1 e4 Kf4 a3 Bb2 c1N Qg2 e3 Be5 Ra6 Qf1 Bc5 Nc3 Ne7 g6+ Kg8 Kg5 Nb3 g7 Nd4 Nb5 Nd7 Nf2 h3 Bd3 e2 Nd6 e1Q Bb1 h4 Nd3 Bh5 Rg2 h2 Nf7 h1Q Qg1 Qe8 Nd8 h3 Qf1 h2 f7+ Kh7 g8R Nb6 f8B Qf2 f6 Bcg4 f7 Nec8 Qe1 Be2 Bh6 Nd6 Rg6 Rg8 Qc1 Rg7 f8N+ Kg8 Rg4 Qc6 Nd7 Qc8 Rg2 Bhf3 Rg4 Ne6+ Kh5 Qhg2 Bhf4 Qgg3 Kh6 h1Q+ Rh4 Qgh3 Rg2 Bh5 Rhg4 Rg5 Bc2 Qd4 Rh4 Ndc4 Nb2 Rg3 Rg4+ Ng7 Qf1 Rc3 Rd1 Qf2 Rd4 Nd6 Qa1 Rf3 Nd3 Re3 Bg5 Ne6 Bb1 Ne8 Bef6 Nd6 Bf4+ Ng5 Bg7 Ne6 Bge5+
q2q1Bk1/1r1R4/3Q2Bb/p1RP1p1K/2Pq1BN1/1bq5/2rRr1n1/nN1N1b2 b - - 0 1 illegal: No proof kernel
2N1k1bq/1Q1N1R2/1bP5/1P2nK2/3r3b/BBR1pRq1/p1B1N3/rnrq2q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 e3+ Kd3 e2 c5 e1B b6 e4+ Ke2 a4 c6 a3 f5 d3+ Ke3 d2 Kf4 d4 g5 e3 g6 d3 g7 h3 f6 h2 b5 h4 b7 h3 Ke4 Qc7 Nf3 Bc5 Ra2 Nd7 b8R Bh4 Nd4 Bb6 Rb7 Ne5 Nf5 Ne7 g8B Be6 Nc3 Nd5 Ne2 Nc3+ Kf4 Qg7 Rf7 Nb1 Ne7 Qg3+ Ke4 Rd8 Rc2 a2 Ba3 Bc4 Bh7 Rd4+ Kf5 Bb3 Rg1 h1Q Rc3 h2 Nc8 Qhg2 Rh1 Qg1 Bg2 Rg8 Bd5 Rf8 Qc2 d1Q Be6 d2 Bg6 Q1g2 Rf1 h1Q Rf3 Qgg1 Bh7 Bd5 Qa4 Rg8 Qa6 Rgg4 Qb7 Rc4 Rb3 Rc1 Rc3 Rd4 Rf2 Bg2 Bb3 Bd5 Rf3 Qhh2 Rc7 Bg8 f7+ Kd8 f8N Ke8 Nd7 Bf6 Rd3 Rc2 Bf8 Qdf1 Be7 d1R Nc5 Nd2 Rc3 Ra1 Bf8 Nb1 Rf7 Qhh4 Ke6 Qd1 Nd7 Rc1 Bhc2 Qh8 Ba3 Bh4 Kf5
1rQ2Rq1/B4q1p/2P2n1b/2N3N1/q1pP1K1n/R1N5/Bb3k2/1nBnRb1r b - - 0 1 illegal: No proof kernel
bQ2nKn1/3q1nPN/qB5q/2P1B1RR/4p3/2Nbp1b1/4NR2/rBkr1b2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 b4 a5 c5 h5 g3 e5 b6 d5 b5 e3+ Kd3 h3 b7 h2 b6 a4 Ra2 h4 Ba3 h3 Rg2 Nc6 b8N Ba6+ Kc2 Ke4 f5 d3+ Kc3 d2 f6 d4+ Kc2 d3+ Kc3 Qd7 f7 Bd6 f8R Nd8 Kb4 Nf7 Qc2 d1B b7 Be2 Qb3 d2 g4 d1N g5 Nf2 g6 Ng4 g7 Bed3 Ne2 N4f6 Rg5 Ne8 Bb2 a3 Nbc3+ Kf3 Ka5 a2 Kb6 a1Q Bg2+ Kf2 Be4 Qf1 Qb4 Ke1 Bf5 Kd2 Bg6 Qe6 Kc6 Qd7+ Kd5 Bab5 Qf4 Ra1 Bh7 Qc6+ Ke6 Qd1 Be4 Qa6 Nd7 Qda4 b8B Rd1 Re1 h1B Bc7 h2 Nf6 Rh3 Bh7 Ba8 Bb6 h1Q Rh5 Rf3 Rg1 Rff1 Rgg5 Ra1 Bf5 Rfd1 Nh7 Qh4 Ng1 Bf1 Bb1 e4 Nge2 Bd3 Qe5 Bb8 Qc7 Qd4 Qd8 Bg3 Qb8 Nfd6 Rf2 Nf7 Na4 Qd8 Be5 Qd4 Nac3 Qf4 Rg4 Qh6+ Rg6 Ngf6 Ke7 Ng8+ Kf8 Qd7 Ba2 Kc2 Rg4 Kd2 Rgg5 Kc2 Bb1+ Kb2 Nf4+ Kc1 Nfe2+
r2Q3b/3q1rp1/rkB2P2/1N3BBR/1q3RRp/2b2N1q/1P1n2q1/2K1Nb1n b - - 0 1 illegal: Other
b1K1N1qQ/2B1r1p1/1PN3bn/brRqnB2/1PR1R3/p6r/kN2B1n1/b7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 a5 e4 f5 h4 a4 b3 a3 h5 d3 b6 g3 Kb5 g2 c4 f3 h6 f4 h7 f2 Ra2 f3 Qe1 d2 Rh5 d1Q Rh4 Ra7 Qe2 Qd5+ Kb4 Bb7 Nc3 Nh6 Na4 Ba8 c5+ Ke5 Kb5 Kd4 Qe1 Nc6 Re2 Ne5 Nb2 d6 Rg4 Re7 Ka6 Qb8 Qd1+ Kc3 c6 Kb4 c7 Kc3 Nh3 g1B c8B Kb4 Bf5 Bh2 Bg2 f1R Ng5 f2 Nf7 Re1 Be3 f1N Bf4 Ne3 Bf1 Ng2 Nd8 Bg3 Qc2 Rb1 Qc8 Be1 Rc2 Bc3 Be2 Bd4 Rc5 Bc3 Nc4 Ba1 Nc6+ Kc3 Qd8 Kc2 Rh4 Rb2 Bg3 Kb1 Rg4 Ka2 Bf4 Rg8 h8R Rb1 Rh7 Rh8 Qe8 Qd8 Nb2 Qg8 Qh5 d5 Qh2 d4 Qh4 Nd7 e5 d3 e6 d2 Bc7 d1B Re4 Ne5 Ka7 Qd7 Kb8 Qd5 Kc8 Bc2 Rcc4 Re8+ Qd8 Bb4 e7 Ba5 Rc5 Nhf7 Rh1 Rh3 Rc1 Nh6 Rcc4 Rf8 e8N Rf7 Qh4 Re7 Rc5 Nhf7 Qh8 Nh6 Rf4 Be4 R1c4 Bc2 Bfg4 Bg6 Rfe4 Rd1 Bf5 Rd4 Rc1 Rb4 R1c4 Rb5 b4
N1nBK3/4pP2/5b2/1BRBp1q1/Q4N1q/n3k2q/rnb1rn1P/1R1rNR2 b - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 hxg4 d4 cxd4 e5 f6 Qd3 fxe5 Qe2 Rh3 Qd1 Rh8 Kd2 Kf7 Kd3 Kg6 Kc4 Kf5 Kc5 Ke4 b4 d5 f4 a5 c4 g5 b6 g3 b7 g2 f5 g4 b5 d3 b6 d2 f6 d4 f7 a4 Nh3 g1Q Qc2+ d3+ Nf2+ Ke3 Ra3 g3 Qb3 g2 Qa2 Bf5 Nc3 Rh3 Ne2 Nd7+ Kc6 Nh6 b8N Bg7 c5 Qh8 b7 Nb6 Rc3 a3 Nd7 Bf6 b8R Ng4 Nf4 Nc8 Rb1 Qh4 Nb6 Bh7 Qb3 a2 Kd7 a1N c6 Ra2 c7 Nc2 Na8 Na3 Qa4 Bg6 Bb2 d1R Rc5 d2 Bb5 Bc2 Ke8 Qf1 N2d3 g1Q Bc3 Nf2 Ne1 Qgg5 Ba5 Rf3 Bb6 Qfh3 Rf1 Rg3 Ba5 Rg2 Bb6 Rc1 Ba5 d1N Bb6 Nb2 Ba5 Nb6 c8B Rd1 Be6 Nc8 Bb6 Nh1 Bd8 Re2 Bec4 Nf2 Bd5
bN4K1/1Q1pbB1r/pb3q1B/3r2Nn/3qR1nn/1k4P1/R3B1P1/2Rq1nN1 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 bxa4 d5 exf4 d6 g5 Qd2 g4 Qd4 g3 hxg3 cxd6 Qd3 d5 Qd1 d4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 Kc4 e4+ d3 b4 h5 c3 a3 e5 f3 b5 f2 e6 a2 b6 h4 e7 h3 e8R h2 b7 Qf6+ Ke4 Nc6 b8N Be7 Bh6 Bb7 Qg4 Rh7 Qh4 Kb3 Kd5 d2 c4 d1Q+ Bd3 f1Q c5 Q1f2 Qh5 Ne5+ c6 Ng6 Na6 Nh4 Qf3 Rb8 Qe4 Ba8 Nc3 Rb4 Nb8 a6 Rc1 a1B Qf3 Qe3 Ne4 Bd4 Ng5 Bb6 Ra1 Qf2 Ra2 Rb5+ Ke4 Rd5 c7 Q2b2 c8B Qbc3 Bb7 Qc5 Ne2 Qcc3 Re1 h1N Ng1 Qb2 Be2+ Qbc3 Qf5 Nf2+ Kf4 Qfd4+ Qe4 f5 Rc8 Qb2 Rc1 Ng4 Bc6 N8f6 Bcb5 Ne3 Bh5 Qa1 Bf7 Neg4 Be2 Qab2 N5f3 Qbc3 Kg5 f4+ Ne5 Nf5 Kg6 Nh5 Nef3 Qa1 Ng5 f3 Qe5 f2 Qc7 f1N Qb7 Nd6 Bb5 Nf5 Re4 Qac3 Be2 Rh8 Be6 Nh4+ Kf7 Rh7+ Kg8 Qf6 Bf7 Qc4 Nc6 Qcd4 Nb8
2b1N2r/2K1n3/2P3Rn/p5BR/1nb1B1N1/1pPrb3/Rn1n3k/nNq1BQ2 b - - 0 1 illegal: No possible last move
1nr2N1n/1K1Q1Rb1/2n1BR1r/B6n/2NPr1rN/2BRpk1P/3p4/3nqb2 b - - 0 1 illegal: No proof kernel
n1B4n/1nbPK2n/1r1n1BN1/1b3Q2/B5NN/1R2Rp2/R3n1pP/qq1r3k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 e4 f5 b4 g5 b6 a5 d5 Ke5 b5 c5 d6 f3 Kg3 f2 b7 c3 b6 f4+ Kg2 g3 Kf3 c2 d7 g2 Kg4 a4 Bb5 f1N Na3 c4 Bc6 c3 Qe2 Ng3 Qa6 Bd6 Qd3 Bc7 Nb1 a3 Bb2 c1N Ba4 a2 Na3 Nh6+ Kf3 g4+ Kf2 Ngf5 Qe3 g3+ Kf3 Nf7 Kg4 Nd3 Qf3 Na6 b8N Ndc5 b7 N5d6 Re1 a1Q Nc2 Rh6 Ne3 Nh8 Re2 Qe8 Kg5 Qe6 Qh5 Qea2 Ng4+ Kd4 e5 Q2b1 Rf2 Ke4 e6 c2 e7 c1N e8B Ne2 Nf3 g1N Bf7 g2 Nh4 f3 Bc3 Re6 Bf6 Nh3+ Kh6 Kf4 Kg7 Ng5 Re1 Nh7 Nc6 Ra7 b8R Ncb7 Nce5 Ra8 Nh6 Ke3 Bg6 Ra7 Be4 Ra8 Neg6 Ra7 Rff1 Ra8 Rh1 Kf2 Qf5 Ra7 Rd1 Ra8 Rd3 Ra7 Rc1 Ra8 Rc4 Kg1 Rc2 Kh1 Ra2 Nd8 Ng8 Re8 Rbb3 Rb8 Nf4 Nb4 Bc3 Nd5 Rbb2 Nc1 Rb3 Nb6 Nf6 Na8 Bb7 Re1 Nfg6 Ne2 Re3 Rd1 Ba6 Rb5 Ng4 Rb6 Bf6 Bb7 Kg8 Bc6 Bc8 Bb5 Kg7 N8b7 Kg8 Ng5 Kf8 Nh7+ Ke7
3R4/rBKpB2q/r2R3n/Q3r2b/2kb1Pb1/3NP1BN/2Rr2p1/nb1Nb3 b - - 0 1 illegal: No proof kernel
2nBr1N1/1PR1Pbk1/2B1p1r1/1qB2r2/rN1q1R2/QpR1N1bK/r7/4rn2 b - - 0 1 illegal: No proof kernel
3Q4/B1N1Rn2/2BR3r/1N1P3n/brP2rqk/1Bbpn1nb/N5rp/2KR4 b - - 0 1 illegal: No proof kernel
2r3bB/B1r3nn/N5pN/Q4p1R/rRN1PK1P/qkn4B/4R1b1/b2r1n2 b - - 0 1 illegal: No possible last move, all moves rejected
1BKn2BN/2B5/R1P2pr1/1n2q2b/2PrpNQb/2R1bnk1/1R4b1/1Nr1n3 b - - 0 1 illegal: No proof kernel
3k2rn/P2Qr2q/1b1b1N2/nK3Nbb/4NR2/r2PRp2/3nBn1p/2B1RB2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 a4 b5 e4 f5 Ke2 h5 g4 c5 g6 c3 g5 h4 g7 c4 e5 b3 g6 c2 a5 h3 a6 f3+ Ke3 b4 d3 f4+ Ke4 c3 e6 f2 e7 b2 Qe2 b3 Ke5 h2 Qe3 f3 Qd4 Nh6 g8R Nf7+ Ke4 Nc6 g7 Qd7 Ke3 Na5 Bh3 f1R Qb4 Re1+ Ne2 Qc7 Kd4 Bg4 Ra3 Bh5 Nd2 b1N Qd6 b2 Ne4 Nd2 N2g3 b1N Bf1 Qd7 Kc5 Qb7 Bb2 c1B Nf5 c2 Ra4 Nc3 Rb4 Nd1 a7 Rc8+ Qc7 Nf2 Qc6+ Qd7 Kb5 Rh7 Be2 Nh8 Rf1 Rd1 Re1 Rd8 Ba3 Bb2 Rc4 Bd4 Bc1 Bb6 Bf1 Kf7 e8N Bd6 N8f6 Rf8 Ba3 Ra1 Bc1 Ra3 Be2 Rb8 Re8 Rc8 Re6 Qe7 Qd7 Rg8 Bb2 c1B Rd4 Re8 g8B+ Kf8 Re5 Rg7 Bf7 Rg8 Be6 Qh7 Rb4 Nf1 Rd4 Bg5 Bc1 Nd2 Ne3 Ra8 Bh3 Re8 Nf5 Re6 Bhf1 Re7 Nc3 Kf7 Re3 Kf8 Rf4 Kf7 Qc7 Kf8 Nce4 Kf7 Nd7 Ke8 Qc6 Kd8 Ndf6 Rge8 Qb7 Rg8 Qd7+
knKb1nn1/p7/1B1qRbp1/5b2/2bN2Q1/3bnNPB/1B1rP2R/1Nb1R3 b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 d5 a4 dxc4 h5 b5 h6 bxa4 Nh3 g6 Ng1 f6 Ra3 Na6 Ra1 Rb8 Qc2 Rb3 Qd1 Rd3 Rh5 Rd7 Rh1 Rg7 hxg7 Ba3 Rh4 Bc5 Rh1 Bf8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb7 d4 c5 b4 h5 g3 h4 d5 c3 b5 a3 b6 f5+ Ke5 a2 d6 f3 d7 h3 Ke6 f2 Be3 c2 Nd2 c1N Rh2 f4 Ne4 c4 Qd6 f3 Bf4 c3 Qd2 c2 Be5 Ka8 Qe3 Nb3 Re1 c1B Qd3 a1B Bb8 Nd4+ Kf7 Ne6 Nd2 Bf6 Qf5 B8e7 Qg5 Nf8 Be5 Nb8 Bb2 Ba6 Nb1 Bd3 Qg4 Rh5 Bg2 Rd5 Bf1 Qc7 Ke8 Qd6 d8B Rd4 Bg2 f1B Bc7 Rd5 Bd8 f2 Nf3 Bc4 Bc7 Rd2 Bd8 Nh6 g8R Bd3 Rg7 Ng8 Bc7 Bd8 Re7 Ba6 Re6 Bc4 Rh1 h2 Bh3 Rc2 Rg1 h1B Rg2 Rd2 Rh2 Qd3 Bce5 Bfg2 Bed4 f1N Bf2 Qd6 Be3 Nc6 Bed4 Ne3 b7+ Kb8 Bb6 Bf1 Nd4 Be4 Nf3 Bed3 B6d4 Kc7 b8N Kb7 Bc5 Ka8 Bb6 Ne5 Nc6 Ned7 Ncd4 Bg2 Ne5 Bge4 Nef3 Bf5 Re4 Bg5 Re6 Bdf6 Re7 Bh4 Kd8 Bhg5 Kc8 Nb8+ Re6 Bd8 Bc7 Bgf6 Bb6
2KN1r2/5R1B/2B1rnQ1/2q1R2N/bbp1P1R1/3pkb1q/1B1r1pNP/1n3q2 b - - 0 1 illegal: No proof kernel
rnb3K1/2B2r2/2rBBNRb/qkR4q/p1nn3N/P4pP1/NpR1Q3/3b4 b - - 0 1 illegal: No possible last move, all moves rejected
1Q2R3/2q2RP1/qb1BB2n/Pqb1N1pK/1k3p1N/p2nr2n/2b1R3/1B1N3r b - - 0 1 illegal: No proof kernel
Q1R5/2kq2p1/1p2b1Kb/Rq1r4/r1P1r1n1/R1pNbNqB/2N3PB/4Bn2 b - - 0 1 illegal: No proof kernel
3Nn3/rnQq3B/k1B2r1N/p1b2nKR/1p2P1NR/4pb2/2PRbB2/3b3r b - - 0 1 illegal: No proof kernel
B2rkb1K/2bN1p2/2n5/1n1p2b1/2nr3P/1n3r1q/2RPp2R/RQNN2BB b - - 0 1 illegal: No proof kernel
8/b2brpB1/2P1nQrN/1R5K/1PkNBq2/5R2/1n2pRp1/1nBrbNn1 b - - 0 1 illegal: No proof kernel
1B3n2/B5q1/2rN1PN1/Q1n3RK/2pr3R/pbNRp3/3qP2n/n1b1Bk1r b - - 0 1 legal: proof: c4 b5 g4 d5 a4 dxc4 axb5 h5 g5 h4 g6 h3 Bg2 hxg2 Na3 fxg6 Nb1 g5 Ra5 g4 Ra4 Nd7 Ra1 Nb8 d4 Kf7 f4 Ke6 Kf2 Kf5 Kg3 Ke4 h4 g5 b4 e5 f5 a5 d5 c5 d6 a4 h5 a3 b6 c3 f6 c2 b7 Ne7 b5 Bh6 b6 Na6 b8N Ng6 b7 Nf8 Qf1 Be6 d7 Bb3 Bd2 c1N Qd1 c4 Bb4 Ke3 Qd6 e4 Qb6+ Nc5 Nf3 g1N Nh4 Nf3 Rg1 Nh2 Be1 Ra6 Qa5 Rc6 Na6 Rg8 b8B Rg6 Kg2 g3 Kh3 g2 Nc7 g4+ Kg3 Rg5 Nb5 Rd5 Ng6 Rd4 Kh4 g3 N1c3 Bf4 Nd6 Bh6 Rf1 g1Q Rf5 g2 Rb1 Bf4 h6 Bg5+ Kh5 Bf4 Bd2+ Kf2 h7 Kf1 Rg5 Be3 Be1 Bd2 h8B e3 Bg7 Rf4 Rd5 N5d3 Ne7 Ng4 Bg3 Bd1 Nb7 Nh7 Rb3 Nh2 Na2 Re4 Bf8 Bc2 Ba7 Nc5 Be1 Rf4 Bh6 Nf8 Bg5 Rg4 Bf4 Bd1 Rc3 N1b3 Bfb8 Bc1 Re5 Na1 Rb3 Qc8 d8R Qd7 Rc3 Qd3 Rd4 Qd2 Nd6 Bb3 Rcd3 Rf4 Rg5 Re4 Rg4 Rf4 Rd5 Rd4 Rf5+ Qf2 Rff4 g1R Nc3 Rh1 Rf5 Qf4 Rh4 Qf2 Rd5 Qg2 Re5 Qg8 Rg5 Qg7 Ng6
3q2B1/B2B1q2/1npP1Q1R/P1k1R2p/2N2nnb/2p3qn/2R3br/NKN4r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 a4 Kc6 d4 e5 Kd2 b5 Kc2 b3+ Kb2 b4 f4 h3 f6 e4 f7 e3 a5 h2 d5+ Kc5 f5 c6 g5 e2 f6 e1Q g6 Nd7 g7 Qg3 d6 Nb6 Qg4 Nh6 g8B Be7 Qg7 Bh3 f8R Bg2 f7 Bh4 Qf6 Ng4 Na3 h6 Kb1 b2 Ne2 Rc8 Kc2 b1N Re8 Nc3 f8N Ncd5 Kb1 b3 Re5 b2 Ng6 c3 Nc2 Rc7 Ra2 Rch7 Re4 Nf4 Na1 Nh5 Ne5 Nf4 Rg1 h1N Nc4 Nhf2 Rh1 N2h3 Be3+ Kb4 Nc1 Kb5 Kc2 Kb4 Re5 b1Q+ Kd1 Qf5 Rc2 Qh5 Bd3 Qf7 Bf5 Na8 Ba7 Nb6 Ree1 Kb5 Bd7 Kc5 Na2 Rg7 Kc1 Rg5 Re6 Rd5 Kb1 Rd1+ Nc1 Rh7 Rh2 Rh1 Qe7 h5 Rh6 Rg7 Qf6 Rg5 Re2 Rd5 Re4 Rd2 Re5+ Bd5 Rhe2 Rc2 Re1 Rch2 R5e2 Be4+ Rc2 Bg2 Re5+
2q5/3R4/p1bb1r1r/1P3N1B/KP1N1Rr1/1Qqp4/R1Bpr1bB/n1kN1n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kf6 c4 Ke5 Kc2 h5 Kb3 d5 g4 f5 c5 a6 c6 d3 g5 Kd4 c7 d2 e5 Ke3 e6 h3 g6 h4 g7 f3 e7 f2 e8N h2 Be2 f1R Bf3 d4 Nd6 h3 Ne2 f4 Ra3 Rf2 Qe1 Nh6 g8B Nf5 Bb7 Rh6 Be4 Nd7 Be6 Nc5+ Kb4+ Nb3 Ka4 Bd7 c8R Bc6 B6d5 Ng3 Qd1 Nf1 Nec3 Re2 Bf5 Na1 Rb8 Qc8 b4 f3 Rb7 f2 Bc2 d3 Bf3 Be7 Rg1 h1B Bh5 h2 Ra2 Bhg2 Bb2 h1Q Na3 Qh4 Rd7 Qc4 Qb1 Kd4 Nd1+ Qc3 Rh1 Rb8 Rh3 Rb6 Rf3 Bf8 Ndc4+ Bd6 Nce3 Rg6 Rf8 Rg4 Rf6 Nh2 Rf8 f1R Rff7 Rf6 Nf5+ Ke4 Rf8 Kf3 Rff7 Nf1 Rf8 Qc4 Be5 Qc3 Bh2 Rh6 Nb2 Kf2 Nd1+ Ke1 Qb3 Rb7 Rdd8 Rf7 Rd7 Rff6 Ne7 Rfe6 Rf4 Ref6 Nf5 Re4 Nf2 Bf8 Bb1 Bd6 Nc2+ Ke2 Ncd4+ Ke1 Nd1 Re2 Nde3 Re6 Nec2+ Kd1 Nce3+ Kc1 Nd1 Ref6 Bc2
n1NR4/BrN1p1Q1/n4rp1/p2P4/q3Rq2/B1b2R1q/K2Pb3/NBk2n1q b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 h5 a4 bxa4 g4 hxg4 Ba6 f5 Bf1 fxe4 f4 Kf7 h4 Kg6 b4 Kf5 h5 a5 b5 c5 h6 g6 h7 a3 b6 a2 b7 g3 Qf3 e3 Kd1 g2 Kc2 e2 Kb3 e1Q Na3 c4+ Kb2 c3+ Kb3 c2 Rh6 Nf6 Bb2 c1Q Qe2 Qh4 Nc4 Qh3+ Nf3 g1N Ba3 Qc7 Nb6 Na6 b8B Ne8 Ba7 Bg7 Rh4 Rf8 h8R Bc3 Ne1 Nf3 Nc2 Nh2 Qe1 Be6 Nc8 Rf6 Rb1 Bd7 Na1 Bb5 Qf2 Ke4 f5+ Qf4 Qd4+ Kf3 Bd3 Nec7 Rd8 Rb8 Rb2 Qe1 Bb1 Ke2 Rc2 Kd1 Qe5 Bb2+ Rc3 Qh1 Rf3 Bc3 Rg4 Rb7 Rh4 Re6 f6 Nf1 f7 Rf6 f8N Na8 Ne6 Bd3+ Nb6 Be2 Nc7 Rc6 Qg7 Rf6 Bb4 Kc1 Nc8 Qfh2 Re4 Qf4 Ka3 Be5 Nc2 a1Q+ Kb3 Qd4 Na1 Qc4+ Ka3 Bc3 Bbc5 Qb4+ Ka2 Qa4+ Ba3+
B2BN1k1/pr5R/4KP2/1nq4b/B2p3b/Qrn1R3/p1P2nb1/2NnNRq1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Kd2 d3 Ke3 Kf7 Ke4 e5 Kd5 h5 f4 h3 g4 a3 b4 e4 g5 h4 b5 h2 b6 d2 b7 e3 Qe1 a2 Nc3 h3 Qg3 e2 Nf3 e1Q Ne2 Rh7 Bg2 Na6 b8N Qg1 g6+ Kg7 Rb1 Qc7 Rb3 d1N Ne1 Be7 Qc3+ Kf8 g7+ Kf7 Ba3 d6 Nd7 Rb8 Bb4 Rb6 Ba5 Qcc5+ Ke4 d5+ Ke5 Nc7 Nf6 Bd8 Ne8 Ne7 Nc1 d4+ Bd5+ Be6 g8B+ Kf8 Qb4 Bf7 Qa3 Rb4 Re3 Nb5 Kf6 Bg6 Ba8 Nd5+ Ke5 Rb7 Bc7 Bg5 Bd8 Nd5c3+ Bd5 Be7 Ke6 Kg8 Bb3 Bg5 Ba4 Rb3 f6 Qg2 Rf1 h1B f5 h2 f7+ Kh8 f6 Bh5 Ne2 Qg1 Nc7 Bg2 Nc1 h1N Ne8 Nhf2 f8R+ Kh7 Rg8 Bh4 Rg7+ Kh8 Rd7 Kg8 Rh7
B1RqRr2/p4p2/1Pk5/2qn1bnB/3p1b2/rrRQ2q1/B2P4/r2N1KNN b - - 0 1 illegal: No possible last move, all moves rejected
2N1B1q1/p1R1p1rr/K1p2Nk1/PQ2nRqR/1r2Bn1B/3q1N2/1P4n1/1qb5 b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 h3 fxg4 Ke2 g3 Ke1 g2 Nf3 g5 Ng1 g4 Ne2 g3 Ng1 Bg4 hxg4 Qd7 Ke2 Qc8 Ke1 Qd8 Ke2 Kf7 a4 h5 f4 e3 d4 c3 Kd3 h4 Kc4 e2 Kb5 e1N g5 h3 a5 c2 d5 h2 f5 Rh6 g6+ Kf6 g7 Nc6 d6 Rb8+ Ka6 Rh3 d7 Rb3 Qe2 Nf3 Qb5 Rh6 Nc3 Rb4 Bd3 Nh4 Be4 Rh7 Nf3 g1Q Nd5+ Kf7 f6 g2 Bg5 c1Q Nb6 Ne5 Nc8 c6 Rb1 Qd2 Rf1 Qd3 Rf2 Qe8 d8R Qgb1 Rd5 g1R Rd7 Ng2 Rc7 Qc1 Bh4 Qg5 Ne1 Qed8 Rf5 Kg6 f7 Nf6 g8B Nd5 Nf3 Bh6 f8N+ Kg7 Nd6 Ndf4 Nd7 Kg6 Be6 Qg8 Nf6 Re1 Rf1 h1Q Bd7 Re2 Rf2 Qhb1 Nc8 Rc2 Rf1 Rcc4 Rh1 Rd4 Ne8 Rd6 Rh2 Rf6 Rh3 Rff7 Nf6 Rfg7 Be1 Rf7 Rh5 Rfg7 Bh4 Qg3 Bg5 Ne2 Bh4 Bc1 Nb6 Qg5 Nc8 Nef4 Be8+
5n1Q/nrBB1pR1/2P1NB2/1b5K/1N2qN1R/2q4p/p1rnkPR1/r2n2q1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 h5 bxa4 h6 gxh6 Rh4 h5 Rh1 h4 Kd2 d5 e3 d3 Rh2 Bg7 Rh1 Bd4 Nf3 Bc5 Kc3 d2 Ng1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Qd7 Qf3 Qd6 Qd1 Qd8 g4 Kd7 b4 Kd6 b5 Kd5 g5 Ke4 g6 a5 b6 h5 g7 e5 b7 a3 d5 h3 d6 a2 d7 h2 Bh3 h4 Bg4 a4 Bb2 h3 Na3 Ra7 Bh5 Qf6 d8B Bd7 Bc7 Nc6 b8N Rb7 Nb5 a3 Ne2 Na7 Rg1 h1Q Nbd4 Ne7 g8R Ng6 Bg4 Bb5 Na6 Nf8 Nf4 Rh6 Rb1 a1R Rg7 a2 Nde6 Rh8 Qf1 d1Q Rg2 d2 Nb4 Qe2 Bf5+ Kf3 Re1 Qd1 Re4 Qg1 Rc4 Qb1 Kd3 d1N Qe1 Rh5 Qc3 e4+ Kd2+ e3+ Kd3 Qe7 Kd4 Qd7+ Ke5 Qd3 Kf6 e2 Qe5 Rh4 Kg5 e1N c3 Rg4+ Kh5 Qbc2 Rd4 Qe4 c4 Qc3 c5 Rg3 c6 Rg4 Nfd3 Ke2 Qf6 Nf3 Ndf4+ Ke1 Qh6 Nd2 Qh8 Rg3 Nc5 Re3 Bd7 Re2 Nce6 Nc4 R7g6 Rc2 Rg7 Nd2 Rc4 Qb3 Bf6 Qc3 Ng6 Ke2 Rd4 Qee3 Rh4 Qe4 Ngf4+
2q2B2/4p3/1rp2Bqr/2P2Pn1/Rp5b/nN1R1nN1/R1Q1BNn1/3nk1nK b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 f4 Kd7 d4 Kc6 a4 Kd5 g5 h5 a5 b5 a6 b3 c3 c6 f5 e3 c4+ Ke4 c5 e2 d5 h4 a7 b4 g6 b2 d6 h3 g7 h2 d7 Nf6 g8R Bg7 Bh6 Nh7 Nh3 Kf3 Qc2 g1Q Nf2 g2 Nc3 b1N Nce4 Qc8 d8B Nd7 Ra4 Bf6 Ng3 Ne5 Bc7 Rb8 a8N Rb6 Rd8 Bh4 Bf8 Na3 Rd2 Ng5 Rd3+ Kf4 Bb8 Rh7 Nc7 Rh6 Rd7 Kf3 Ne6 Ke3 Rda7 Kf3 Nd4+ Ke3 Nb3 Kf3 Kd2 e1N Kd1 Ke3 Be2 Ne5f3 Ra8 Qf1 R8a5 g1N Be5 Qh3 Beg7 Qg4 Bf6 Ng2 Ra7 Qh5 Rd7 Qg6 Rd4 N1h3 Rg1 h1N Rd2 Ngf4 Rg2 Nhg1 Rh2 Ne5 Ke1 Nef3+ Kf1 Ng2 Nfe4 Nf2 Rd6 Nd1 Nf2 Nf4 Rd5 Nfh3 Kg2 Nf4+ Kh1 Ng2 Rd8 Qb8 Qc4 Qg8 Bf1 Nf4 Nh3 Qc8 Ra2 Ng2 Be2 Qg7 Qc2 Qg6 Nf4 Kf2 Rd3 Ke1 Nh3 Qa6 Nf2 Qa8 Rd5 Qc8 Rd3
2rB3b/nppb3N/1n3Ppb/5NRn/2n1N1K1/1R6/kP1nR1n1/BQ4rB b - - 0 1 illegal: Other
q2r1B2/1q1NQ2r/p2rnp1N/1B5R/pkn3K1/2PRqP2/Bq4NR/4rb2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 h5 bxa4 h6 gxh6 Rh4 h5 Rh1 h4 Kd2 d5 e3 d3 Rh2 Bg7 Rh1 Bd4 Nf3 Bc5 Kc3 d2 Ng1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Qd7 Qf3 Qd6 Qd1 Qd8 b4 Kd7 g4 Kc6 g5 Kb5 d5 e5 d6 h5 g6 a6 d7 h3 g7 e4 Kd4 h2 Ke3 h4 Kf4 e3 Be2 h3 Kf5 f6 Ba3 Nc6 Kg4 Rh7 Qe1 d1Q Nd2 Qe8 Nb3 Nd4 Nf3 Ne7 g8B Qc1 Nh4 Nd5 Ng2 Ne6 d8R Nb6 Nd4+ Kc4 b5 Qb2 Bf1 e2 Nf5 d2 Nh6 d1R Bf8 Rd6 Ra3 Kc5 Rd3 Nc4 b6 Rb8 Rd2 Kb4 b7 Bd7 Bf7 Bb5 Bg8 Ra8 b8N Qe7 Bf7 Qa7 Nd7 Qe3 Qa1 e1R Qa3+ Ka5 Qc5 Rb8 Qe5 Kb4 Rd3 Ra8 Rc8 Rb8 Rc5 Rd8 Qe4 Rb8 Rh5 Rd8 Rg1 h1Q Bg8 Ng7 Qe7 h2 Bd5 Ne6 Be2 Na5 Ba2 Nc4 Rf1 Qa7 Rg1 Qa8 Rf1 Qg1 f3 h1Q Rh2 Qe3 Rh5 Qh2 Rh1 Qhe5 Bf1 Qed5 R1h2 Qdb7 Rd1 Nd2 Bd3 Bc6 Bdc4 Be4 Bb5 Nc4 Rdd5 Bd3 Rd4 Be2 Rd3 Bf1 c3+
3K1RRq/1Q4P1/2Np2pb/nR4p1/bB3r2/1N2rr2/2pqNP1k/BBb4n b - - 0 1 illegal: No proof kernel
Rb4N1/2k3pB/2qQ3p/1R3P1N/2b3K1/rqP1p1pn/2BNR2r/2Bn1nr1 b - - 0 1 illegal: No proof kernel
3b3r/K1PN3r/2R1RB2/b1RBrbNb/p1BP3p/2p2q2/3Q1p2/N3knn1 b - - 0 1 illegal: No proof kernel
1nr3nQ/P1pb1K2/2n2nNN/bb1BB1N1/8/r2qPR2/pR1k2pp/2R4B b - - 0 1 illegal: No proof kernel
Nq1BrBn1/1R4r1/1KPr2N1/rb6/1b1p4/pB1k4/PQ1pRp1n/2N2Rq1 b - - 0 1 illegal: No possible last move
b2N3q/5BP1/3rpR2/1K2p1pB/RP4RB/1N1Qn1qn/2k2Npb/r2r3r b - - 0 1 illegal: No proof kernel
1RqB3Q/7r/p1P1R1p1/1N1bq3/2B3kN/p1B1N3/3rnpP1/nK1nrR1q b - - 0 1 legal: proof: f4 b5 h4 c5 a4 bxa4 d4 cxd4 f5 g6 h5 Bg7 h6 e6 hxg7 exf5 Ra2 f4 Ra3 Qc7 Ra1 Qd8 Kd2 Ke7 b4 Kf6 e4 Kg5 c4 h5 Kc2 d5 e5 f5 b5 a3 b6 d3+ Kb3 d2 Ka2 h4 b7 h3 c5 a6 c6 f3 e6 f4 e7 h2 e8N d4 Bb2 d3 Nh3+ Kg4 Nc7 Nf6 g8R Nd5 Ne8 Rh7 Qb3 d1Q Bd4 d2 Bb2 f2 Ng1 f3 Qc3 Qe1 Ng7 d1N Bc4 f1R Nf5 f2 Nf3 Be6 N3h4 Qc8 Qh8 Nd7 b8B Nc5 Nc3 Qe5 Bc7 Re1 Kb1 Nf4 Bd8 Nb3 Rf1 h1Q Nb5 Bd5 Bc3 Ne2 Ra2 Na1 Ne3+ Kh5 Rf8 Ra7 Rb2 Rd7 Rf6 Rd6 Nc2 Kg4 Re6 Be4 Rb4 Rd2 Rb3 Bd5 Ne3+ Kg3 Nd6 Kf4 Rb8 Kg3 Nb5 Kf4 Nc2 Kg4 Ne3+
Bk3qbN/R1p1qn2/2NRr3/p4p2/5P2/RPrB1Q2/N1rp2K1/r1brB3 b - - 0 1 legal: proof: d4 g5 a4 b5 h4 gxh4 d5 bxa4 d6 Nc6 b3 Nb4 c3 exd6 cxb4 d5 Qc2 d4 Qd3 Qe7 Qd1 Qd8 e4 a5 f4 h5 Kf2 d5 g4 Kd7 e5 f5 g5 d3 b5 d4 g6 d2 g7 a3 b6 a2 b7 h3 b8R d3 Qc2 d1R Bb2 h2 Nh3 h4 Qe2 Nh6 g8N Qe7 Bc3 Ra6 Ng5 h3 Rb7 Re6 Be1 d2 Qf3 Nf7 Nc3 Kd8 Rg1 h1R Ra7 h2 Kg2 Rh3 Ba6 Bg7 Bd3 Qf8 Ne7 Bf6 Rc1 a1R Na2 Ba6 Rc6 Bc4 Rb6 Kd7 Nc6 Kc8 Rba6 Be7 Rf1 Ba3 Rb6 Bc1 Rba6 Rd6 e6 Bd5 e7 Re6 e8B Bc4 Nd4 Kb8 Rd6 Qe7 Bc6 Rg1+ Kf2 h1Q Ba8 Rgg3 Rg1 Rhh6 Kf1 Rhg6 Kf2 Qh8 Rh1 Rh3 Kg2 Qhf8 Rf1 Re5 Rh1 Rc5 Rg1 Re6 Rh1 Ne5 Nf7 Bd5 Nh8 Nf7 Qe4 Re3 Qf3 Rc2 Nc6+ Kc8 Bc4 Rec3 Bd3 Bc4 Rd4 Bd5 Ra4 Bc4 Rh6 Bd5 Ra3 Bc4 Ne5 Kb8 Rf6 Bd5 Rg6 Bc4 Nc6+ Kc8 Qh3 Rd6 Qg4 Nh6 Rg7 Bg8 Qf3 Nf7 Rg6 Rf6 Nd8 Kb8 Rh6 Re6 Rf6 Re5 Rd6 Re6 Nc6+
5qnR/k5Qp/p2q4/3NP3/RpNRq1n1/N4Bb1/Pp2B2r/1nBn2Kb b - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 cxb6 Bc4 b5 Bf1 b4 f4 e5 Bd3 b5 Kf2 a6 Ke2 e3 Ke1 e4 Bf1 Ra7 Ba3 Re7 Bc1 Re5 fxe5 Qd7 Nh3 Qe7 Ng1 Qd8 g4 Kd7 d4 Kc6 c4 Kb7 c5 f5 c6+ Ka7 d5 b3 d6 b2 g5 f4 g6 b4 c7 h3 d7 h2 g7 f3 Qc2 e2 Kf2 e1N Qd2 e3+ Kg3 f2 Kh3 e2 Qd3 Bc5 Qg6 Bb7 c8B Nf3 Kg2 e1Q Be2 Nd2+ Nf3 f1N Qh6 Bf2 Na3 Qf8 d8R Bg3 Bg4 Nd7 Rb1 Ndf6 Rg1 Nde4 Nd2 Qd1 Ndc4 Nc3+ Bgf3 Ng4 Rd5 Qd2 Ra5 Nd1 Ra4 Qdd6 Qg6 Nd2 Qf6 N8h6 g8N Ba8 Ra1 Nb1 Ne7 Rg8 Nd5 h1Q+ Kf1 Bb7 Qf7 Rg5 Qg7 Qh4 Kg2 Ng8 Rf1 Rh5 Kg1 Qhe7 Rf2 Rh2 Rf1 Ndf2 Rd1 Qh4 Rd4 Nd1 Bh6 Nbc3 Rc1 Nb1 Bg5 Qhh6 Rc2 Qhg6 Bc1 Qe4 Na5 Rh4 Rc8 Rh2 N5c4 Qff6 Nf4 Qe3+ Kf1 N8h6 Rh8 Qff8 Bh1 Ng8 Bg2 Qd3 Kg1 Qc2 Qh6 Bf3 Nd5 Qe4 Qg7+ Qd7 Bh3 Bh1 Bg2 Qde7 Bgf3 Qc7 Qg5 Qcd6 Qg7+
n2b3R/1rBpN2R/1Q2pk1p/1r4BK/n1B1b1pP/2rR1pN1/2NP4/b4q2 b - - 0 1 illegal: No possible last move, all moves rejected
2r2kNn/1r3Qpr/NB1q1pP1/3BnPp1/rb1Rb1R1/R2N4/2q2B2/K1n2b2 b - - 0 1 illegal: No proof kernel
3Nn1R1/1bk2R2/1p1rp3/2BqPB1B/1P4rb/pnrQ4/q2R1n2/Nb1nKN2 b - - 0 1 illegal: No proof kernel
rB2K3/2b1pnq1/nNQp2R1/NpnPr2R/b2R1n1B/1P3B2/2Nq4/1b1q1k2 b - - 0 1 illegal: No proof kernel
r2NR1n1/nk3npN/2pqNB2/2Q1R2p/K1P5/1B1r1bR1/n5nP/bB1bn3 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 d4 Kd7 Kd2 Kc6 a4 h5 f4 e5 c4 b5 Kc2 e3 Kb3 e2 d5+ Kb7 d6 e1N a5 e4 f5 e3 f6 e2 f7 g3 Nh3 g2 Qd2 g1N Bg2+ Ngf3 Rg1 Be7 f8R Bf6 Qg5 Bg4 Bb2 Nc6 Re8 Nfe5 Nd2 Bf3 Ne4 Nf7 Qc5 Na7 Nhg5 Qe7 Bh1 Ng2 Nh7 e1N Neg5 Qf8 Ne6 c6 d7 Qd6 Rd1 Bc3 Rd5 Rb8 Re5 Bd4 Bc1 Ba1 Bg5 Ra8 Bf6 Bd1+ Ka2 b3+ Ka3 b2 Kb4 b1B Ka3 Nf4 Rg3 Be4 Bf3 Bd5 Be4 Nfg2 Bb1 B5f3 Kb4 Bde2 Ka3 b4+ Kb3 Rb8 Ka4 b3 a6+ Ka8 Be7 b2 Bd8 Rb3 Bf6+ Nc8 a7 Rd3 Kb4 Kb7 a8B+ Kb8 Bb7 Bd1 Ba6 Ka8 Nd8 Na7 Bb5 Kb8 Ne6+ Kb7 Bc2 b1N Bba4 Nc3 Bab3 Na2+ Ka4 Ngh6 Bb1 Rf8 Re7 Ra8 Re8 Ng8 d8N+
4r2r/1ppNn1Rp/1kN5/1P3B1n/2P3qr/RnpQ1B2/K2n3N/bRB2bb1 b - - 0 1 illegal: No proof kernel
1QR2qb1/Br1pR3/nqrb4/2k1p1b1/3BP1B1/Knb2p2/1pNP3R/1b1N1N2 b - - 0 1 illegal: No possible last move
1rb1b2R/Rp6/2pp1N1B/3q2r1/krPP4/1p2qBB1/1rnNQ2b/NR3n1K b - - 0 1 illegal: No possible last move
rk4n1/1BppQ2n/Rbr3p1/bb1N1pR1/n5q1/K2NBP2/N1P2Rb1/3qB3 b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 g5 axb4 g6 hxg6 Nc3 g5 Nb1 g4 Kd2 f5 h4 b5 a4 b3 e4 g3 h5 b4 e5 b2 e6 g2 a5 b3 h6 d3 Kc3 d2 e7 Nf6 Kb4 Nh7 a6 Bb7 a7 Nc6+ Ka3 g6 Qe1 d1B Qe5 Be2 Nf3 g1B Be3 Bb5 Nc3 b1Q Rh5 b2 Bg2 Qd1 Na2 Bg7 Bh1 Rf8 Ne1 Rf6 Nd3 Bh8 Rg5 b1N+ Kb2 Nc3 Ka3 Na4 Be4 Kf7 e8N Ne7 Bf3 Rb6 Nf6 Ng8 Nd5 Rc6 Qd6 Ke8 Bg2 Rb8 a8R Bc3 Ra6 Ba5 Bh1 Qf6 Qe6+ Kd8 Qe7+ Kc8 Bf3 Qe2 Rf1 Ra8 Be4 Kb8 f3 Qd1 Rf2 Qd4 Ne5 Bf1 Nd3 Bh3 Kb3 Bg2 Ka3 Nhf6 h7 Bc8 h8B Nh7 Ra7 Ba6 Bf6 Qc4 Bc3 Bb5 Ra6 Qd4 Nb6 Qc4 Bd5 Qg4 Be1 Rf6 Bb7 Rc6 Re2 Bf2 Nd5 Bg1 Bf4 Bd4 Be3 Bdb6 Rf2
B5R1/1rp2rNn/2PbNpp1/K1RpB3/n1q2P2/pN1B4/1k2r2r/2nb1RQ1 b - - 0 1 legal: proof: d4 e5 a4 exd4 g4 b5 g5 bxa4 g6 hxg6 Qd2 g5 Qd1 g4 Kd2 Ke7 f4 Kf6 b4 a5 c4 g6 e4 g3 h4 g2 h5 d3 Kc3 a3 c5 a2 b5 a4 Kb4 a3 h6 d2 e5+ Kf5 b6 Ke4 h7 Kd4 b7 Na6+ Ka5 Bd6 b8N Ra7 e6 Rb7 e7 Nf6 Nh3 g1N e8B Ne2 Ng5 Rf8 h8R Nh7 Rh5 f6 Bg2 Rf7 Ne6+ Kc4 Qg1 Kb3 Bc6 d1R Rg8 Rd2 Bb2 Nc1 Ng7 Rh2 Nd2+ Kc2 Rb1 a1R Be5 Ra2 Nb3 Qe7 Bh1 Qe6 Nc6 Qc4 Ncd4+ Kc3 Ra1 Rae2 Be4 Kb2 Bd3 Nb4 Rg5 Nba2 Nde6+ Nc3 Rh5 Na2 Rf1 Nc1 Ned4 Na4 Rf5 Bf8 Rg5 d6 Bc6 Bg4 Rh5 Re4 Rg5 Bd1 Rf5 Ree2 Rh5 Rb8 Ba8 Rb7 c6 Be7 Rh3 d5 Nde6+ Qd4 Re3 Bc5 Re4 Qc3+ Rb4 Qd4 Rc4 Bd6 Rc3 Qc4 Nbd4 Qa2 Rc5 Qc4 Nb3+
1q1bb3/1rBNq3/R1RB1PN1/1rrQ1p1n/3K1Q2/1r4rq/4Bk1P/N7 b - - 0 1 legal: proof: c4 a5 a4 b5 axb5 h5 g4 d5 cxd5 hxg4 e4 f5 b4 axb4 e5 Nd7 f4 Ndf6 exf6 e5 Qb3 exf4 Qf3 Nh6 Qd1 Ng8 Kf2 Kd7 d4 Kd6 b6 g5 b7 c5 b8N g3+ Kf3 b3 Qe2 g4+ Kg2 c4 Ra5 c3 Qe3 b2 Bc4 c2 Bd3 f3+ Kf1 f2 Ke2 f1Q+ Kd2 g2 Kc3 g3 Qf3 Ra7 Ra2 Be7 Qg4 Rb7 Nd7 Rh3 Nd2 b1R Ndf3 R1b5 Ne2 g1Q Nfe5 g2 Bf4 Qe3 Nc1 g1R Nb3 Rgg3 Na1 c1R+ Rc2 Qb6 Ng6+ Qe5 Qf3 Bd8 Be2 Ne7 Kd3 Qg2 Ra2 Rc2 Ra6 Rcc5 Rc1 Qf1 Nb8 Be6 Nd7 Bf7 Qe3 Be8 Rc3 Kc7 d6+ Kc6 Rc4 Kd5 Kc3 Rcc7 Rc6 Qa7 Kd3 Qb8 Kc3 Rg5 Qg3 Ke4 Kc4 Qe6+ d5 Qf7 Qg4 Rhb3 Be5+ Ke3 Qe4+ Kf2 Qf4+ Kg2 Kd4 Qf3 Nc5 Rc8 d7 Rg3 Bc7 Kf2 d6 Qa8 Bb8 Nd5 Bc7 Qe7 Bb8 Bb6 d8Q Qa7 Bc7 Qb8 d7 Ba5 Bd6 Bb6 Qg5 Nf4 Qh6 Nh5 Qf4 Ba7 Qa5 Bb6 d8B Rcc7 Qad2 Ba5 Nd7 Rc8 Rcb6 Rcc5 Rc6 Bb6 B8c7 Ba5 Qe5 Qg2 Qd5 Qh3 Be5 Bb6 Bcd6 Bd8 Bc7 Qg2 Bed6 Qh3 Qf4+
4rk2/Nb1Prn1P/5p1q/K3b2Q/2b5/RQ1RqBR1/3r1qQ1/3B2bN b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 d5 a4 b5 c4 e5 cxd5 exf4 a6 b4 a5 Nd7 Bb2 Nb6 axb6 Qd7 Bf6 Qd6 Bd8 Qxd8 e4 c5 h4 g5 d4 b3 Kd2 f6 Kc3 g3 h5 g2 e5 c4 a7 g4 b7 b2 b8Q f3 d6 f2 Kb4 c3 e6 g3 d5 c2 h6 c1Q h7 Nh6 e7 Qe3 d7+ Kf7 d6 Rg8 e8Q+ Kg7 Qb7 Qde7 d8R Nf7 Be2 f1B Na3 b1R+ Ka5 Rb2 Nb5 Qh6 Nh3 g1B Nf2 g2 Rh3 Qee3 Nh1 Rd2 Ra3 Rh8 d7 Bd6 Qb3 Be5 Bd1 Bc4 Qc6 Qf2 Rd3 Bb7 Qd5 Rc8 a8B Rc6 Rb8 Re6 Na7 Re7 Qf3 Rg8 Qh5 Rf8 Qc8 Rfe8 Qc6 Kf8 Qe4 Bgh2 Qef3 g1Q Qg2 Qge1 Rg3 Qee3 Rc8 Be6 Rc3 Bg1 Rd3 Bed5 Rd4 Bc4 Rd3 Bba6 Bd5 Bb7 B5f3
N2rq3/1R2rPR1/4qQ1K/QR1Qr3/1q3Bp1/2B4b/P3kr1N/r2qn3 b - - 0 1 legal: proof: g4 d5 e4 f5 f4 fxe4 c4 g5 cxd5 a6 b4 a5 Bd3 axb4 Bc2 b3 Kf1 bxc2 Ke1 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Ne2 Bh6 Ng1 Bg5 hxg5 Ra6 Rh6 Ra5 Rh1 Ra8 Kf2 Kf7 Kg3 b5 Kh4 h5 d4 e5 d6 c5 f6 Ke6 d7 Kd5 f7 Kc4 f8Q b4 d5 e3 d6 e2 f5 e1R f6 e4 g6 b3 Kg5 b2 g7 h4 Bd2 Kd3 Rh3+ e3 Rh2 c1Q Nh3 c4 Nc3 b1Q Rg2 e2 Qe7 Nh6 g8Q Qb4 f7 Ra5+ Nb5 c3 Kg6 c2 Rh2 Ba6 Ng1 h3 Nc7 Nf5 Nf3 Ne3 Rb1 Qe8 d8B Ng2 d7 Re5 Qf6 Rf1 Qh7 e1R Qh5 Rf2 Na8 Qcb2 Bb6 c1Q Bbe3 Q2b3 Bf4 Qbe6 Bc3+ Qd2 Qb3 Qd1 d8R+ Ke2 Rd5 Bc4 Rh1 h2 Rb5 Rg8+ Kh6 Bd5 Rg1 h1R Nh2 Rf5 Ra5 Q6d7 Qd6 Qee4 Rc5 Qa3 Nf1 Kd3 Bc1 Qc2 Qbb6 Rd8 Nh2 Qee8 Rf1 Re7 Rc6 Ke2 Qa5 Rg5 Qh4 Rge5 Rb7 Qdf5 Rd1 Qca4 Rd4 Q3b4 Bf4 Ra1 Qdc5 Qfd7 Rg6 Qd1 Qf6 Qe6 Rg7 Ne1 Qd6 Bf3 Rd5 Bg2 Rdb5 Bh3 Qd5
1KQN1q1b/1N5r/k1P1R2P/1Bb1Q3/3B4/1pnp2rR/q1bn1bQ1/4B3 b - - 0 1 legal: proof: b4 c5 g4 b5 a4 h5 gxh5 f5 d4 cxd4 e4 a5 bxa5 Rxa5 exf5 Rxa4 Bh3 Rc4 Bf1 Rb4 Kd2 e5 Kd3 d5 c4 Kd7 h4 Kc7 f4 Kb7 h6 g5 f6 g4 f5 g3 h5 g2 c5 Rh7 f7 Qe7 f6 Qd7 c6+ Kb6 Qf3 Qa7 Be3 Rb3+ Nc3 b4 Nh3 g1B Nf4 Bf2 Re1 Ka6 Rh3 Bc5 f8Q Nd7 f7 Ndf6 Ne6 Ne7 Qg2 Ne4 Nd8 Bf5 Qh8 Bg6 f8Q Nd2+ Qf5 Qb8 Be2 Qc8 Bd1 Ra3 Ba4 e4+ Kc2 Qa8 Qfe5 d3+ Kb2 d4 Nb5 Bf5 Nd6 Nd5 N6b7 Nc3 Bf4 e3 Bg3 e2 Qg8 Rg7 h7 b3 Bh4 Rg3 h8B Bg6 h6 Be4 Reh1 e1B Qg4 Qb8 Qc8 Qd6 Rf1 Qf8 Bg7 Be3 Rf6 B1f2 Bh8 Bg5 Rd6 Bf6 Re6 Ra1 Bg7 Rg1 Bh8 Rg7 Bg3 Rh7 Bg7 Ndb1 Bh8 d2 Bh4 d1Q Bg7 Be3 Be1 Bc2 Bh8 d3 Bg7 Qg8 Bh8 Nd2 Bg7 Bcd4 Ka3 Qa1+ Kb4 Qa2 Bh8 Bf2 Bg7 Ka7 Ka5 Bde3 Qf1 Rg3 Qg2 Qf8 Bh8 Qd6 Bg7 Bc5 Bh8 Qb8 Bg7 Ka8 Ka6 Nc4 Qe2 Nb5 Qc7 B2d4 Nf7 Qf8 Nfd8 Nd2 Bh8 Bfe5 Bf6 Bf2 Qc8+ Bb8 Bd4 Nc3 Qd7 Be5 Qc7 Bg7 Qee5 Bh8 Qd7 Be7 Kb6 Ba3 Kc7 Bc5 Kc8 Ka7 Kc7 Bg7 Qc8 Ka6 Kb8 Bh8 Bb5+
Q2Q1B2/q3b1Pp/4b3/6p1/k1n1NR2/2PKbbrN/1R1RB1nr/4q1B1 b - - 0 1 legal: proof: d4 a5 e4 b5 a4 c5 axb5 f5 exf5 cxd4 h4 g5 b4 axb4 h5 Ra3 Rh4 Ra5 Rh1 Ra8 g4 Bb7 Ra4 Qb6 Ra1 Qg6 hxg6 Bf3 Kd2 Bxg4 Ke1 Bf3 Be2 Bc6 Bf1 Bg2 Ke2 e5 f4 d5 g7 Kd7 c3 b3 f6 e4 f5 b2 b6 Kc6 f7 Kb5 f6 d3+ Kd2 e3+ Ke1 e2 Kd2 e1B+ Ke3 Bf2+ Kd2 d4 b7 Be7 f8B Ra2 f7 Bf3 Bh3 Nf6 Qc2 Nc6 Rh2 Ng4 Bf1 Ne3 Bh3 Na5 Qd1 Ng2 Qe1 Ka4 b8Q Rg8 Qe2 Be3+ Kd1 d2 Kc2 d1B+ Kd3 Bd5 Qa8 Be6 Qd2 Bf3 Bg4 Rh8 Nh3 Rg8 Qd8 Nc4 Qe1 Rh8 Nd2 Rg8 Qf2 Rh8 Ne4 b1Q+ Qc2+ Qb3 Qe2 Qb6 Rb1 Qa7 Qb2 Rg8 Qbb8 Rh8 Rb2 Rg8 Qa8 Rh8 Kc2 d3+ Kb1 d2 Kc2 Rg8 Kd3 d1Q+ Bd2 Qg1 Be1 Rh8 Bf2 Qe1 Bg1 Ba3 Bd6 Re8 f8R Re7 Rf4 Rf7 Bf8 Be7 Qdd5 Rf6 Qdd8 Rh6 Nhf2 Rh3 Bh5 Rg3 Nh3 Nh4 Rhd2 Ng2 Rb3 Rc2 Rb2 Nh4 Rd1 Rh2 Rdd2 Ng2 Nd6 Bc6 Be2 Bf3 Ne4
3Kn3/q3rP2/2rBQr2/3NQ3/1RqN2pr/3RbpN1/BP3Qb1/3k2n1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 f5 e4 fxe4 f4 c5 Qg4 cxd4 Qf3 exf3 Kd2 Kd7 Kd3 Kd6 Kc4 a5 h4 e5 b6 g5 Kb5 e4 b7 e3 h6 g4 h5 e2 f5 Ke5 f6 Ke4 h7 Kd3 f7 Kc2 d6 e1R d7 a4 h6 a3 Nc3 d3 Nge2 d2 Ng3 d1R Bc4 a2 Nd5 Re7 Bf4 Rc1 Bd6 Nc6 b8N Qc7 d8Q Nf6 Qd7 Ra6 Qe6 Ne8 Rd1 Bg7 Kc5 Nd4+ Nc6 Ne2 Rd3 Ng1 Kb5 Bc3 Kc5 Bd4+ Kb5 Rg8 h8Q Be3 Qd4 Rh8 h7 Rb6+ Ka5 Ba6 Qc5 Re1 Rad1 a1Q+ Ba2+ Bc4 Rb3 Rf1 Rd4 Rc1 Rb4 Qc8 Rd3 Qc7 Rdb3 Kd1 Nd4 Bf1 Ra3 Bg2 Rab3 Rf8 h8Q Rg8 Qhf6 Rh8 Qfe5 Rh4 Rd3+ Ke1 Qc2 Qc4 Rc3 Rc6 Qf2+ Kd1 Rcb3 Rc5+ Kb6 Ra5 Bc7 Ra6+ Kb7 Rc2 Kc8 Rc1 Kd8 Rc2 Qc8 Rf6 Bd6 Rc1 Qce6 Rc3 Bb1 Qa7 Ra3 Qb3 Ba2 Rc6 Bc7 Qd3 Bd6 Qc4 Rd3+
1QbQ2nB/3q1NB1/r3pQ1b/1nqbP1n1/2p2R1B/5b2/2KPR3/k5N1 b - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 f5 g4 fxg4 a4 d5 cxd5 Bf5 a6 Bd3 a5 Bf5 h3 gxh3 a7 Bc8 a6 Nd7 Bb2 Rb8 Bc1 Rb7 axb7 Nb8 Bg2 Qd7 Be4 Qd8 Bg6+ Kd7 Be8+ Kxe8 a8Q Kf7 e4 h5 f4 g5 f5 c5 f6 h2 e5 h4 d6 Ke6 d7 Kd5 f7 Kc4 Ra6 b4 Ra1 g4 Ra7 e6 Ra5 h3 Ra4 g3 Qe2+ Kb3 Kd1 g2 Qf1 c4 Qf4 Bh6 f8B Nc6 b8Q Na7 Bg7 Nb5 Ba3 Ka2 Kc1 b3 Nc3+ Ka1 Ra7 b2+ Kc2 b1N Ne4 N1c3 Ng5 Ne4 Nf7 Ng5 Qf6 Qc7 d8B Qd7 Bde7 Rh7 Bh8 Rg7 Ne2+ g1Q Rb7 Rh7 Qa5 Rg7 Qd8 Rh7 Bac5 Rg7 Bf2 Rh7 Be1 Qc5 Bf8 Rg7 Rg1 h1B Rg2 h2 Ng1 Rh7 Re2 Bf3 Bh4 h1B Nd6 Re7 Bfg7 Bd5 Nf7 Bhf3 Rb6 Qe8 Rd6 Ra7 Rd7 Ra6 Ra7 Qd7 Rb7 Na7 Rb3 Nb5 Rbe3 Ra7 Re4 Ra6 Rf4
1nR5/1Q2bnrB/1p1N1q2/2nPQp2/B3N1qp/4KR2/2QrBP2/2kb4 b - - 0 1 legal: proof: b4 a5 bxa5 d5 e4 dxe4 a4 c5 h4 g5 hxg5 c4 a6 c3 a7 Na6 a5 b6 Bb2 cxb2 c4 Rb8 a8Q Rb7 Qb8 Bh6 c5 Bg7 c6 Bf8 Nc3 b1R cxb7 Rb5 Nb1 Rxa5 Qa8 Nc7 Qb8 Ra8 Ra3 Na6 Ra2 Bd7 Ra1 Bc8 Ke2 Kd7 d4 Kc6 g4 Kd5 g6 Kc4 g7 h5 d5 e5 g5 h4 g6 e3 Kf3+ e2 Qc1+ Kb3 Na3 e1Q Rh3 e4+ Kf4+ e3 Ne2 Qb4+ Nc4 Nh6 g8B Bg4 g7 f5 Bh7 Nf7 Qe5 Qf6 b8Q Be7 Ng3 e2 Ke3 e1N Qb7 Nb8 Nd6 Bd1 Be2 Qg4 Nge4 Rg8 Rf3 Nd3 Qc5 Ra2 Rc1 Rd2 Bg6 Nd8 Be8 Nf7 Ba4+ Ka2 Rc2+ Kb1 Qcc6 Rh8 g8B Rh7 Rc3 Rg7 Bh7 Kb2 Bb3 Kb1 Qa4 Kb2 Rc8+ Kb1 Bc2+ Kc1 Qc4 Nc5 Ba4+ Rc2 Qb3 Rd2 Qc2+
rb3r2/r2B1Q1r/pn1R4/N1Pnq3/b3pN2/2p2Qk1/R1R1P3/2Q1BK2 b - - 0 1 illegal: No possible last move
3B1k2/6rB/rb4Np/q2QR3/1NR2R2/p1PP1Bq1/KQ2p3/n3r1bb b - - 0 1 illegal: No possible last move
3r3R/1Q1PKn2/1n1BB2p/b1Q5/QP5R/6rq/3prnkp/3NNn1R b - - 0 1 legal: proof: h4 b5 e4 f5 exf5 a5 h5 a4 a3 b4 axb4 g6 Bb5 gxh5 Bf1 h4 c4 d5 d4 c5 b3 axb3 Bb2 Bb7 Ba3 cxd4 Bc1 d3 Ra2 d4 Ra1 Bd5 cxd5 Qc8 Qf3 Qc7 Qd1 Qd8 Kd2 Kd7 f4 Kd6 g4 e5 g5 b2 g6 e4 f6 h3 g7 h2 f7 Qd7 f5 Ke5 f6 Kf4 d6 Kg3 Ra7 Be7 f8Q Bd8 f7 Nh6 Qa4 Qh3 Qe7 Rg8 f8Q Ba5 Qb7 Nf7 Nc3 Nd7 Nf3 Rd8 Nd1 Nb6 d7 h6 Ra8 b1R Be2 Kg2 Qc5 Rb3 Rc8 Rge8 Rc6 Re5 Rf6 Ra3 Rf4 Ree8 Bb2 Re5 Rh4 e3+ Kc1 d2+ Kc2 Ree8 Bc4 e2 Be6 Rd3 Bc3 e1N+ Kb3 Nc2 g8R+ Ng5 Bd5 Re2 Be6 Ne3 Rf8 Nf1 Rh8 Na8 Kc4 Nf7 Kd5 Nb6+ Kc6 Rde3 Bb2 Ra3 Kc7 d3 Be5 Rb3 Bd6 Rc3 Nb2 d1N Kc6 Nf2 Nd1 d2 Kc7 Rg8 Kc6 Rg3 Kc7 Ng5 Kd8 Nf7+ Ke7 Rc1 Qg5 Rc8 Qc5 Rd8 Ne1#
3NB2n/nqpQR3/r5R1/Q1P3N1/1pk5/3pq1b1/K1P1q2b/N2q1B1B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 d4 gxh4 Ke2 Ra5 Kd2 Rc5 Ke1 b5 dxc5 e5 a4 e4 f3 e3 Bb2 Bb7 Ba3 Be4 fxe4 bxa3 g4 Kf7 f6 Ke6 a5 h5 f7 d5 g5 b4 a6 a2 e5 d4 g6 Kd5 a7 e2 Kd2 e1Q+ Kc1 h3 Kb2 h4 a8B+ Nc6 g7 h2 e6 h3 e7 d3 e8B Bd6 f8Q Qe2 Qf5+ Kc4 Nf3 Qg5 Qd7 Na7 Rg1 Qge3 Rg6 h1Q Ng5 Ne7 g8N h2 Nh6 Qb7 Nhf7 h1Q Nd8 Rh6 Qc1 Qhh5 Qe1 Bh2 Qc1 Qb6 Bh1 Qb7 Qd1 Qeg2 Qf3 Qge2 Qf6 Qd1 Qb6 Qhe2 Qa5 Bg3 Nc3 Bh2 Nb5 Bg3 Rc1 a1B+ Ka2 Bae5 Nd4 Bh2 Nb3 Beg3 Rg7 Re6 Na1 Ng6 Re7 Nh8 Rb1 Qde1 Rd1 Ra6 Rd2 Q2d1 Rf2 Qe1d2 Rf6 Q2e2 Rg6
3qB2r/2B3Pq/1b1NNp1p/q1R2b2/1R4Qn/1QK2R1q/3pk2P/N3q3 b - - 0 1 legal: proof: b4 c5 d4 e5 a4 b5 axb5 cxb4 f4 exd4 Na3 g5 Nb1 gxf4 Bb2 Nc6 Nd2 Rb8 Nb1 Rb6 Bc1 Ra6 bxa6 Na5 Ba3 Nb7 axb7 a6 Bc1 a5 Kd2 Ke7 b8Q Ke6 g4 Kd5 c4+ Ke4 e3 d5 g5 b3 c5 a4 c6 a3 c7 h6 g6 f3 g7 f2 Bb5 f1Q Ne2 Kf3 e4 b2 e5 d3 e6 a2 e7 d4 e8N f6 Nd6 Bf5 c8R Qh3 Be8 Ne7 Rc5 Ng6 Na3 b1Q Qbb3 Nh4 Nc2 Be7 Bb2 Qa5+ Bc3 Bd8 Nf4+ Kf2 Ne6 Bb6 Qg1+ Kf3 Qg5 Kf2 Rc1 Kf3 Qg4+ Kf2 Kd1 d2 Rc4 Kf1 Rb4 Kf2 Na3 Qe4 Nc2 Kf1 Rab1 a1Q Rb2 Qb1 Na1 Qea8 Rc2 Qd8 Bb2 Kf2 Rc3 Qe4 Rd3 Kf1 Kc2+ d1Q+ Kb1 Qde1 Kc2 Kf2 Ba3 Kf1 Kb2 Kf2 Rf3+ Ke2 Rc8 d3 Rc5 d2 Kc3 Q4b1 Bb2 Qba2 Kc4 Qab1 Be5 Qe4+ Kc3 Qd5 Nc7 Qg8 Ne6 Qh7 Nf7 Bc2 Bc7 Bf5 Nd6
qqN5/rB2R1KQ/N1P5/2p3pb/1RqP2k1/1n5p/1Q1Bbb2/N3b1B1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 f4 exf4 c4 d6 Qc2 cxb4 c5 Qe7 c6 Qd8 Qc5 dxc5 g4 f5 Ba3 a5 Bb2 f3 Bc1 f4 h3 Nd7 h4 g5 h5 Ne5 Ra3 Rb8 Ra1 Ng6 hxg6 Rb7 Ra4 Rf7 Ra1 Rf5 gxf5 Qd5 Ba3 Qd4 Bc1 Qd8 Kf2 Ke7 d4 Kf6 e4 h5 e5+ Ke7 b6 a4 f6+ Ke6 g7 Kf5 f7 h4 e6 b3 e7 b2 e8Q h3 b7 a3 b8N a2 Qe2 Qb6 Na6 Qa5 Nc3 b1Q Nb5 Rh6 Bd2 Nf6 g8Q Kg4 Nd6 Qb8 Re1 a1B Qh7 Bc3 Rb1 Rg6 Rb4 Rg7 Qb5 Bd7 Nc8 Be8 Ne2 Bd6 f8B Ra7 Nc1 Bh5 Nb3 Qa2 Na1 Ne4+ Ke1 f2+ Ke2 f3+ Kd3 Bg3 Bd6 Bh4 Bh2 Qa5 Be2 f1B Bg1 Bf2 Kc4 Qa4 Kd5 Qa3 Bd3 Be2 Ke6 Qa5 Qbb7 Qa4 Ke7 Qa3 Kf8 Qa4 Bf4 Bce1 Kg7 Nd2 Bb5 Nb3 Bd2 Bg3 Bc4 f2 Rh2 f1Q Rg2 Bd1 Re2 Bgf2 Re7 Qe2 Qc2 Qe6 Qb2 Be2 Bd3 Qc4 Qd7+ Kh4 Qf5 Qa3 Qh7 Kg4 Nc7 Ra6 Na7 Qe6 Nc8 Ra8 Ba6 Qc4 Bb7 Qaa7 Ba6 Qab7 Qa2 Ra7 Qb2 Q7a8 Bb7 Qe6 Na6 Qf7+ Kh8 Qc4 Kg7
Rn1rn3/1Nnp2P1/1kPR2QB/7Q/Rnnq3p/QK6/p1NBr1n1/8 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 e5 a3 Bd6 Nd2 a5 Nb1 exf4 a4 b5 axb5 a4 Nf3 Bc7 Ng1 Ba5 bxa5 g6 g4 Bb7 Bg2 Bd5 Be4 Bc6 Bf5 gxf5 h3 Bf3 g5 Bg4 hxg4 f3 Ra2 f4 Ra3 Qc7 Ra1 Qd8 Kd2 f5 c4 h5 Kc2 f2 e4 f1N g6 a3 c5 f3 g7 f2 b6 h4 e5 f4 e6 f3 a6 d3+ Kb3 d2 a7 Nh6 c6 Ng8 b7 Ne3 e7 f1N g5 f2 g6 Nc2 Nc3 Qb6+ Nb5 Nf6 Qf3 d1N Bh6 Nb4 Ne2 Nde3 Ned4 Nc4 Nc2 Nfe3 Rhd1 f1N Rd6 Ng2 Qg3 Rf8 g8Q Nfe3 g7 Ned5 Qh7 Qd4 Qhg6+ Rf7 Bd2 Nc7 Qh5 N8a6 Qgg6 Rd8 a8R Qc5 b8B Qd4 Ba7 Nb8 Qf3 Qg4 Bae3 Qd4 Bh6 a2 Re1 Nca6 Re4 Nc7 Qfg3 Nfd5 Q6g5 Rf2 Qf3 Nf6 Qc5 N4a6 Qa3 Nb4 Qf5 Re2 Qe5 Kf7 Rg4 Nfe8 Qg5 Ne6 Qh5+ Kf6 Qg6+ Ke5 Rf4 N6c7 Rg4 Nf6 e8Q+ Ne6 Qgf7 Nb2 Qg6 Qc5 Rg3 Nbd5 Qf8 Ne8 Rg4 N6c7 Rga4 Nb4 Nc3 Nc4 Qf3 Qd5 Ne4 Qd4 Rf6 Kd5 Nd6+ Kc5 Nb7+ Kb5 Rd6 Kb6 Qfh5
n3b1K1/qr3p2/5NQ1/rB5Q/3b1Rpb/1B4p1/P4pkP/RBn3NQ b - - 0 1 illegal: No possible last move
4rQqn/8/B6K/1Pq2b1B/1rNb3q/brQRP1k1/5R1R/qqBn2N1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 d4 Kg5 g4 c5 d6 h5 e3 f5 d7 h3 d5 Kh4 g5 h2 d6 b3 g6 b2 g7 c4 Na3 b1Q Qa4 c3 Qa5 c2 Bc4 Nc6 Qa6 Na5 Bd3 Nc4 Ne2 Nb2 Bc4 Nh6 g8B Nd1 Bb2 c1B Bg7 Bb2 Be5 Nf7 Be6 Bd4 Qb6 Ra4 Ng3 Rb4 Re1 h1R Bd5 Qg5 Bh7 Qg8 d8R Qc2 d7 Qc5 Qe6 Rh2 Rb1 Rhb2 Rf1 R2b3 Rf2 Kh3 Bg6 h4 Bh5 Bd6 Bb7 Be7 Ke2 f3+ Kd2 Bd6 Qc4 f4 Ne2 Bf8 Ng1+ Kg3 Bg7 h3 Rb2 h2 Ba6 h1Q Qc3 Qh4 Nc4 Bd6 Rh2 f2 Kd3 f1Q+ Ke4 Be7 Rbf2 Bf8 Ne5 f3+ Kf5 Qe1 Kg6 Be7 Re2 f2 Nc4 f1Q Ref2 Bf8 Re8 Bd6 d8Q Qd3+ Re4 Qb1 Qf8 Qa1 Re6 Qf1 Ref6 Qd3+ R6f5 Qdb1 Rd2 Be7 Rd3 Qd5 Na3 Bdf6 Bf3 Rh5 Rc2 Ra4 Nc4 Ba3 Qcb4 Qc5 Rh2 Bfb2 Rf6 Re5 Bh5 Nh8+ Kh6 Re8 Rff2 Bf5 Qe1 Rab4 Bf6 Bc1 Bb2 Bd2 Bc1 Bc3 Qd2 Bd4 Qc3
qN5Q/B3r1BN/RN2b1q1/nP2BPnn/3kn3/2R4b/1K5Q/r2rn1q1 b - - 0 1 illegal: No possible last move, all moves rejected
bQ2N2n/1BqRKbBN/3QR3/Pb4r1/5nPN/rkn2q2/2qr3B/6r1 b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Nf3 fxg3 Rg1 g5 Rh1 g2 Ba3 g1N Bb2 Ra5 Bc1 Ra8 Nd4 g4 Nf5 g3 Nh4 g2 Nf3 Bc5 Nd4 Bd6 Nf3 Bg3+ hxg3 Qh4 Kf2 Qf6 Ke1 Qd8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 f5 d4 h5 e4+ Ne2 g4 g1R d6 c5 d5 b5 d7 f4 Kd6 b3 e5 b2 e6 b4 e7 h4 e8Q h3 Ng5 h2 Qe3 f3 Bg2 f2 Qh3 f1B Qh4 b3 Qf2 Nc6 Nf7 Na7 Bh3 Qc7+ Ke6 Nh6 d6 Bb7 d8B Nb5 d7 Rg8 Ke7 Nf4 Qd6 Rg5 Bg2 Nc3 Qg3 Kb4 Bd5 Bb5 Nd2 b1B Bb2 Bg6 Nf3 Ra7 Rd1 Ba8 Ba1 b2 Bb7 b1Q Nh4 Qc2 a5 Kb3 Re1 c4 Re6 Ra6 Bb2 Ra1 Rhe1 h1Q Rd1 Ra3 Ba1 Qf3 Rd5 Rf5 Ng5 Nf7 Nh7 Nh8 Qh2 Rg5 Rd1 Qb8 Bc7 Bf7 d8N Rc6 Rd2 Rcc5 Rd4 Rcd5 Rd1 Rd2 Qg3 Ne4 Bg7 c3 Qh2 Qc1 Qg3 c2 Qh2 Nc3 Qg3 Bg8 Nf7 Qb1 Qh2 c1R Qc6 Nd3 Rf6 Re2+ Re6 Qc2 Nd6 Bf7 Ne8 Rg2 Rd2 Rcg1 Bce5 Re2 Qc7 Qc8 Qb8 Rf2 Qf4 Rfg2 Qd4 Qc7+ Qd7 Rf2 Bh2 Nf4 Rd4 Rd2 Rd3 Qc4 Qdc7 Qcc6 Rd7 Qb6 Qe5 Qc7 Qd6
Rb2BN2/B2b3Q/bb1rk3/R2N1b2/1n1nq3/1br2r2/Q1P2P2/K3NQn1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Ke2 cxd4 Kd2 Bg7 Ke1 Bf8 g4 Kf7 Kd2 d5 g5 h5 f6 e5 g6+ Ke6 g7 d3 f7 e4 b6 h3 b7 d4 Ba3 h4 Kc1 b3 Kb2 e3 Be2 d2 Rh2 d3 Bf1 e2 Nc3 e1B Qb1 d1R Nge2 d2 Nb5 Qd3 Be7 Nc6 b8Q Ra3 Nec3 Nd4 Ne4 Nf6 g8Q Ba6 Nec3 Qe4 Bc4+ Nd5 Bc5 Bd6 Qbd8 Bb8 Qh7 Rf8 Bd3 Nb4 Rg2 h2 Bf1 h1N Qa5 h3 Bb6 h2 Rg8 Ng3 Qh8 h1B Ba7 Nge2 Qh7 Ng1 Qh8 Bg2 Qd8 Bh3 Qa5 Bf5 Nd5 Rc8 Ra2 Rc3 Qh7 Rf3 Qc1 Rc3 Kb1 b2 Be2 Rab3 Bh5 Rf3 Ra1 Rbc3 Rd8 Nbc6 Ka2 b1B+ Kb2 Ba2 f8N+ Ke5 Bf7 Bb3 Qa2 Nb4 Be8 Bd7 Qab1 Bf5 Ra5 Bd7 Ka1 Bf5 Nd7+ Ke6 Qcb2 Rc1 Rc8 d1B Qa2 Be2 Rd8 Rd1 Qc1 Rdd3 Qd1 Bd2 Qf1 Bdf4 Rc8 Bfc7 Rd8 Bb6 Rc8 Bg3 Ra8 Bb8 Nf8+ Ke5 Ra3 Bac8 Ra5 Bcd7 Ne3 Rd2 Nc7+ Beb5 Ncd5 Ba6 Ng2 Kd6 Ng6 Ke6 Ne1 Ndc6 Nde7 Rd6 Nd5 Nd4 Nf8+
8/nrn5/rr3NBR/2q1QR1N/4rnPk/2b1n1Pr/3Q1K1R/1q1b2BN b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 b4 exf4 h3 g5 Ra5 g4 Ra1 a5 hxg4 axb4 e4 Ke7 c4 Kf6 e5+ Kg5 b6 h5 e6 d5 b7 f5 e7 b3 e8Q h4 c5 d3 c6 d4 c7 d2+ Kf2 f3 Ra4 h3 Rh2 b2 Bd3 f4 Qee1 Nf6 Rb4 Bg7 Qe4 Nd5 Ne2 Rh6 Rc4 Raa6 Na3 b1Q Rc2 Bf5 c8N Nc6 b8R Qf8 Rb6 Qc5 Nc3 Kh4 Bf1 d3+ Qe3 Nc7 Qd4 Na7 Rb5 Rhb6 Qe1 d1R Rcb2 d2 Ne2 Bc2 Nc4 Be5 Qe3 Bc3 Ng3 Rb7 Qe2 Re1 N8b6 d1R Nh1 Rd6 Nd5 Rdb6 Qd2 Bd1 Qed4 Re4 Nf6 Na8 Bd3 Nc7 Kf1 f2 Ne3 Bb3 Ke2 f1N Nh5 f3+ Kf2 Ng3 Nd5 Bd1 Ndf6 Ne2 Q4e3 Nf4 Ra5 Rc4 Bg6 Rd4 Qe5 Re4+ Kf1 f2 Rbb5 Qcb4 Rd5 Qa3 Rd6 Qc5 Bb2 Bb4 Bd4 Bc3 Be3 Nc6 Qe8 Nb4 Bf5 Qb3 Nh7 Bc2 Rh6 Nc6 N7f6 Qe5 Bg6 Na7 N1g3 Qf5 Rh1 h2 Rb5 Qfd5 Qe7 Qc6 Rg5 Qc5 Rf5 Qbb4 Qe5 Ba4 Rg1 h1R Bd4 Rh2 Rh1 Rh3 Rh2 Qb3 Nh1 Qb1+ Qc1 Bc2 Be3 Nfd5 Ke2 f1N Qd2 Bd1+ Ke1 Rf4 Bg1 Nfe3 Qe8 Rfb4 Qe5 Re4 Kf2 Nf4 g3#
2R3bq/Q1r1NP1k/nnrPK3/qr1Q4/2Q5/N3Br2/5n1b/nRnB1B2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 c5 g4 h5 d4 b3 f4 c4 g5 h3 b6 h2 b7 c3 f5+ Kh7 f6 c2 d6 b2 d7 h4 d5 h3 Qe1 Bd6 Ne2 Ra7 Nd4 Qa5 d8Q Na6 b8Q Be6 Qd1 Ne7 Bd3 Rf8 Qbc8 Bg8 Re1 h1N Ra2 h2 Bf1 Rc7 Qcd7 Nf2 Qd3 h1Q Na3 b1R Qc4 Rb5 Nc6 Rf7 Qb8 Nc8 Qa7 Nb6 Ne7 Qh2 Bd2 c1N Ra1 Qh6 Rb1 Qg7 Rd1 Qh8 g6+ Kh6 g7 Kh7 Nc8 Rc6 Qe6 Rfc7 f7 Nb3 Ne7 Na1 Ke2 e3 Kf3 e2 Be3 e1R Rdc1 Rd1 Kg3 e4+ Qe5 Nh1+ Kf4 Rd3 Kf5 Nf2 Ke6 Rc3 Qed4 Bh2+ d6 Rcb3 Qdd5 Rd3 Bg5 e3 Rc3 e2 Be3 e1N Rcc1 Rd4 Rc2 Rf4 Rcc1 Kh6 Rc2 Ned3 Rc3 Bh7 g8B Nc1 Rc2 Kg7 Rc3 Rf3 Rc2 Be4 Bh7 Bd3 Bf5 Be4 Bg4 Bh7 Bh5 Bg8 Bg4 Kh7 Bh5 Rh3 Bd1 Rf3 Qa2 Rcc5 Rcb2 Rc8 Rb4 Rc3 Rc4 Rc2 Rc7 Rcc5 Qac4 Rc6 Rb7 R8c7 Rb8 Rc8 Ra8 R8c7 Rc8
1B3Nnq/n1Kn1b1q/1Q1rRB2/4r2r/2NnP1R1/4b2k/2r2P1N/1Q1bB3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 e5 e3 exd4 Bc4 f5 Kd2 f4 Bd3 f3 Be2 fxe2 Kd3 Kd7 Kc4 e1N g4 h5 b4 c5 d6 Ke6 g5 Kf5 Kd5 a5 b6 a4 b7 d3 b5 a3 g6 h3 g7 c4 d7 a2 b6 c3 Nd2 c2 Nc4 h2 Ne5 d2 Ngf3 h4 Nf7 Kg4 e4 h3 Ba3 c1R Rf1 h1Q Nh4+ Nf3 Bd6 h2 Ng6 Ra6 Bb4 Kh3 Nd6 Ne5 Rg1 Rh5 Nc4 Bc5 Rg4 Nbc6 b8Q Be3 Kd6 Rc2 Qb1 d1B Nf8 Na7 Be1 Qe8 d8B Be6 Qc7 Bf7 Bf6 Nd7 Qb7 Qa8 Kc7 Re5 Qc6 Qe8 b7 Rb6 Qc5 Rd6 b8B Qe7 Qcb6 Qe8 Q1b4 Qe7 Rc1 a1N Qb2 Nb3 Qb1 Rc3 Rc2 Nd4 Ra2 Rc2 Ra6 Nh6 g8N Qe8 Ne7 Ng8 Neg6 Qe7 Bg7 Qh4 Bf6 Qh7 Nh4 Qf1 Bd2 h1R Nf3 Qg2 Nh2 Qh8 Rf4 Qg6 Rg4 Qgh7 Be1 Rg1 Rf4 Rgg5 Rg4 Rh5 Qb7 Rdd5 Re6 Rd6 Q7b6
6N1/n1bqQBK1/1bb3Q1/2P5/1qP1nrRR/1R1Qk1N1/2Bq4/1r2nq1n b - - 0 1 illegal: No possible last move, all moves rejected
1bR1bB1n/1rNQ1rnk/rq4P1/n4R2/2qP1NK1/2Q1Br2/4b3/1N2B2b b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 Ke2 h5 Kf3 c5 d4 f5 g4 Kf7 g5 Kg7 d6 b4 e4 c4 d7 b3 e5 b2 e6 c3 e7 c2 e8N+ Kh7 Be3 c1Q Qf1 h3 Bf2 h4 Ra2 h2 Nc7 h3 Qg2 Nh6 Be3 Nc6 b8Q Na5 b7 Qc4 Nc3 b1R Bf2 Bd6 Na6 Rf8 Nge2 Nf7 Ra3 Nh8 Rf1 h1N Re1 h2 Ra1 Ng3 Rf1 h1B Be3 Nh5 Qa7 Bb8 Nc7 Rf7 Ra3 Rb2 Nb1 Ng7 Rc3 Rb4 Qc5 Ra6 Qc6 Qf6 d8B Bd7 Be7 Be8 Qd7 Qb6 Bf8 Rb2 Kf2 f3 Kg3 f2 Qf3 f4+ Kg4 Rb5 Qg3 f3 Nf4 Qd3 Rc5 Qc4 Rc1 f1B Rf5 f2 Qf3 Ba7 b8B Bd3 Qg3 f1R Qe1 Rf3 Qc3 Bf1 Nce6 Qb4 Qcc6 Qc7 Nh5 Qh2 Bg3 Qe2 Be1 Rb7 Nhf4 Bb8 Qc4 Qc5 Qb4 Qb6 Rc8 Qc2 Nc7 Qc4 Qc3 Be2 g6+
1bNB1r2/q1Q1RQB1/1P1Q1q1k/6q1/nn6/bn5K/R1Bqn1P1/2Nq1n2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 d5 h6 d3 Nd2 gxh6 Nb1 h5 Qe2 h4 Qh5 Nh6 Qd1 Ng8 f3 e5 Bg5 a5 Kd2 d4 Ke1 Bb7 Bf4 Bd5 exd5 e4 Bd2 e3 Bc1 Ra7 Ra2 Re7 Ra1 Re4 fxe4 Qd7 Be2 Qe7 Bf1 Qd8 c4 h5 b4 f5 d6 Kf7 c5 Kg7 d7 h3 e5 f4 b5 d2+ Ke2 f3+ Kd3 e2 Ke4 e1B Kf4 h4 Kg4 a3 c6 a4 c7 a2 c8Q d3 e6 f2 e7 a3 e8Q h2 b6 h3 Qc3+ Kh6 Qcc2 Qf6 d8B Nd7 Qb2 Ne7 Qc3 Nc5 Qf3 Na4 Qec6 Nd5 Q3c5 Nb4 Bb2 d1Q Qd7 d2 Be2 f1N Ba6 Bg3 Qdd4 Bb8 Nc3 Qc2 Nb5 d1Q Na7 Qcd2 Qcc4 Bc5 Bc3 Rf8 Ne2 Be7 Rg1 h1Q Qc7 h2 Bd3 Qdg5+ Kh3 Qdd2 Re1 a1Q Nc8 a2 Bc2 Qad1 Nc1 a1N Qfb7 Nb3 Qdd6 Ne3 Be5 Na6 Qbd5 Q1e2 Qcc6 Qa5 Qcd7 Qfg6 Na2 Qed2 Qf6 Ba3 Q5d6 Nb4 Qff7 Qa7 Bh8 Q6f6 Rgf1 Qg1 Q7c7 h1N Ra1 Ng3 Rfe1 Qf1 Nc1 Qf3 Ra2 Nef1 Re3 Qfd1 Re7 Ne2 Bg7+
1R2qQq1/1rk2qnP/1Pn5/rr2q1r1/NBB5/4Q2N/rQ1KRnqR/8 b - - 0 1 illegal: No possible last move, all moves rejected
2q4B/1N4bR/1p1q1kQB/1rRrR3/1N5P/r3nP1n/b3bQ1K/3q2nQ b - - 0 1 legal: proof: c4 f5 b4 a5 Na3 axb4 Nb1 d5 cxd5 f4 Na3 f3 exf3 Qd6 Nb1 Qd8 Ne2 g5 Ng1 g4 Ne2 h5 Ng1 g3 Ke2 gxf2 g4 Qd7 g5 Qd6 Bh3 Qd8 Bg4 hxg4 Kf1 Kf7 Kg2 c5 a4 e5 d4 g3 g6+ Kf6 a5 b3 a6 b2 g7 e4 d6 c4 d5 e3 a7 e2 d7 e1Q d6 c3 Ne2 b6 Na3 b1R Nd4 c2 Ne6 Rh5 Nc5 Rb5 Bh6 c1Q Nb7 Rhd5 Nc2 Ne7 g8Q Na6 Ra5 Ng6 Nb4 f1B+ Kg1 Qde7 d8Q g2 d7 Nf4 h4 Qe6 Kh2 Be2 Re1 g1N Qg2 Qb1 Qe8 Bg7 d8B Nc7 Qf2 Nfh3 Qc1 Qd3 Qb1 Qd1 Qeg6+ Ke5 Qc1 Q7d6 Qcb1 Qg8 Bf6+ Ke6+ Be5+ Ke7 Qa1 Be6 Qc1 Qc8 Qcb1 Rb8 a8R Bf7 R8a7 Ra8 Ra2 Be6 Rc2 Bf7 Rc5 Be6 Ra1 Ra3 Ra2 Rdd3 Qc1 Nd5 Rac2 Ne3 Rc7+ Qdd7 R2c5 Ba2 Qa1 Rd5 Qab1 Bf8 Bh8 Bg7 Qc1 Bf6 Qcb1 Ke6 Qc1 Ke5 Qcb1 Qd6 Rh7 Bg7 Qgg2 Bac4 Qh1 Ba2 Qg6 Bf1 Qe4+ Kf6+ Qf4+ Nf5 Re5 Be2 Q4g3 Ne3 Qg6+
2kN4/RNn4b/1b2r1Rq/p5PQ/n3qrNn/1rPQ2B1/B2K3n/2n4R b - - 0 1 legal: proof: h4 c5 e4 g5 d4 cxd4 f4 gxh4 a4 b5 axb5 f5 exf5 e5 Ra4 exf4 Ra6 Ne7 Ra1 Ng8 g4 h5 b4 a5 f6 d5 c3 Kd7 f7 d3 b6 d4 g5 d2+ Ke2 f3+ Kd3 h3 b5 h4 b7 f2 b6 h2 Ra2 h3 Qh5 d1N Rc2 Nb2+ Kd2 d3 Ke3 d2 Qh7 d1N+ Ke2 Na6 b8R Qf6 b7 Nh6 Bg2 f1N Bf3 Nf5 Bf4 Na4 Qh5 Nf2 Na3 Nd3 Bd5 Qh6 Nf3 Bc5 f8Q Nc7 Ba2 Nh4 Rd2 Ra6 Ra8 Bb6 Bg3 Rh7 Qc5 Rf7 Qc4 Rf4 b8N+ Kd8 Kd1 Bf5 Nb5 Kc8 Ne5 Nc1 Qd3 Be4 Ra7 Bh7 Rg1 h1R Nbc6 h2 Ng4 Qd6 Nd8 Qh6 Rgg2 Rg1 Rgf2 h1Q Rh2 Qd5 Rh1 Qe4 Rb2 Nh2+ Kd2 Ne2 Rb4 Rb1 Rc4 Rb3 Rc6 Nc1 Nd6+ Kb8 N6b7 Kc8 Qc2 Bd4 Rf6 Re6 Qd3 Bb6 Rg6
1B3B1b/2Qk1bR1/2b2pN1/n2q1nRn/3r1rQq/5R2/nP3PQ1/n5KN b - - 0 1 legal: proof: h4 a5 a4 d5 e4 dxe4 h5 b5 axb5 c6 bxc6 a4 h6 a3 c3 a2 Rh5 gxh6 Rh1 h5 Na3 h4 Rb1 a1Q Bd3 Qa2 Ra1 Qb1 Bc2 Qa2 Bb1 Qxb1 Kf1 h5 d4 e5 g4 f6 c4 h3 c7 h2 d5 e3 c5 e2+ Kg2 e1N+ Kf1 e4 d6 e3 g5 h4 c6 h3 g6 Nh6 g7 Ra4 g8R Nc2 Ra2 Rd4 Qf3 Be6 c8Q Na1 c7 Qe4 Bd2 Qh4 Bb4 Bf7 Nc4 Nc6 Rg5 Nf5 Ra3 Na5 Ne5 Bg7 Ne2 Rh7 Qg4 Bh8 Rg1 h1N Qa8 h2 Ng6 Kd7 Ng3 e2+ Kg2 Rf4 Rf3 e1N+ Kf1 Nec2 c8Q+ Ke8 Bc5 Nb4 Qc7 Na2 Qab7 Qd7 Ba7 Qe6 Bb8 Qd5 Qa8 Bg8 Kg2 Re7 Kf1 Ree4 Rg2 Rd4 d7+ Kf7 d8B+ Ke6 Be7 Bf7 Qc3 Kd7 Bf8 Qc6 Rg1 Qd5 Qc7+ Ke6 Ne4 Ng3+ Kg2 Nh5 Ng3 h1B+ Kf1 Bg7 Rg2 Bh8 Kg1 Rb4 Rh2 Bg2 Nh1 Rbd4 Qab7 Bf1 Rg2 Bb5 Qa6+ Bc6 Qf1 Nc2 Rgg3 Na1 Qg2 Qc5 Ne7 Qc4 Rg7 Rde4 Q4h3 Rd4 Ng6 Qc5 Rg5 Qd5 Qe5+ Kd7 Qhg4 Kd8 Qe7+ Kc8 Qe5 Kd7 Qc7+
2k2B2/B2pP3/1b2b1K1/n2Q2nN/3nrRQ1/N3P2b/2nr1B2/Nn1Rq1q1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 Qd3 f5 Qd2 f4 Bg2 f3 Qd1 fxg2 Kf2 g5 Kg3 a5 h4 d3 c4 a4 b4 a3 b6 a2 b7 d2 e3 Nf6 b5 Nh7 e6 Ra4 c5 Rf4 c6 Bc5 h5 Qa5 b6 Kd8 h6 Re4 Ne2 g1N Ba3 Nf3 Rh4 Nd4 Nc1 Rg8 Qe2 d1B Nb3 Rf8 Bb4 Rf2 Na3 Bc2 Rd1 a1N Qf3 Rd2 Qf5 Bd3 Qd5 Nac2 Na1 Bc4 c7+ Ke7 Rh2 Nbc6 b8B Bb7 c8Q Bf1 Rh1 Bh3 Qg8 Ba6 b7 Bc4 Qg7+ Kd8 Ba7 Bb6 b8B Kc8 Bf8 Qc3 e7 Na5 Rhf1 Qb4 Qa8 Be6 Rf4 Qb1 Rdf1 Qd1 Qd5 Qe2 Rd1 Qe1+ Rf2 Nb5 Bc7 Nc3 Qgd4 Nb1 Q4c4 Qf1 Rf4 Qh1 Qe2 Qe1+ Rf2 Nf6 h7 Re5 h8N Nh7 Ng6 Re4 Bf4 Nc6 Kh2 Na5 Rf1 g3+ Kh1 g2+ Kh2 g1N Bg3 g4 Nf4 Nc4 Nh5 Na5 Rf4 Ng5 Bf2 N1f3+ Kg3 Nfd4 Qf3 Nh7 Kh4 g3 Qg4 g2 Qg8 g1Q Qg4 Nf6 Kg5 Nh7+ Kh6 Ng5 Kg6
2rr1RQ1/bP2nn2/PRn2k1p/4B3/K2b1B2/1QN1bq2/bq4N1/b3R1Q1 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 d5 cxd5 gxh4 Bd3 a4 Be2 Na6 Bf1 Nb8 b4 b6 Bc4 b5 Bb3 axb3 a4 b2 a5 Nd7 Qc2 Nb8 Qa4 bxa4 Kd1 Kf7 Kc2 c5 f4 e5 g4 e4 d4 c4 b5 c3 d6 h3 g5 h2 d7 a3 Kb3 c2 b6 h6 f6 e3 g6+ Ke6 b7 a2 d5+ Kf5 f7 e2 g7 e1B a6 Be7 f8B Nc6 d6 Ke6 f5+ Kf6 Nc3 b1Q+ Ka4 Qb2 Nh3 Bf2 Nf4 Bd4 Re1 h1N Ng2 Nf2 Rb1 a1B Bf4 Qc7 d8R c1B d7 Bec5 B8d6 Nge7 g8Q Nd3 Qb3 Nde5 Rf8+ Nf7 d8Q Be6 Qb8 Bc4 Qa7 Rd8 Qab6 Bce3 Bfe5+ Kg5 f6 Qd7 Qa7 Qg4 Bf4+ Kg6 Bde5 Qf3 Qab6 Nd6 f7 Rg8 Q3b5 Ba2 Qf1 Rc8 Qb3 Ba7 Qg1 Rh8 Rd8 Re8 f8Q Nf7 Qg8+ Kf5 Rd6 Red8 Re6 Ng6 Re8 Nge7 Rf8 Qbf2 Qb4 Ke6 Rb3 Qb2 Qa3 Kf5 Rb6 Ke6 Qb3+ Kf5 Bd6 Kf6 Bde5+
r5R1/Bqb1r2N/1nq1kbK1/5n1Q/1p3B1q/N3QB2/2Q2PP1/1n1r1n1R b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 b5 cxd5 f5 Bb2 fxe4 Ba3 Bd7 Bb2 axb4 Bc1 b3 Bc4 b4 Bf1 Bb5 axb5 Bh6 Ra7 Bg7 Ra1 Bf8 Ke2 Kf7 Ke3 c5 Kf4 e5+ Kf5 h5 d4 c4 d6 e3 b6 b2 b7 e2 d7 e1Q d5 c3 d6 c2 Rh3 e4 Rg3 e3 Nc3 b1N Bd2 c1Q Ba6 h3 Qf3 e2 Ra4 h4 Rg6 h2 Bb5 h1R Qh3 Rh7 Qe3 h3 Bc6 h2 Nf3 Qh4 d8Q Nd7 b8B Nb6 d7 Bd6 Qc8 Bc7 d8Q Qf1 Qd6 e1B Ba7 Qa6 Ra1 Qb7 Nb5 Qc2+ Be4 Qcc6 Qe5 Rg7 Bc1 Bc3 Na3 Rd1 Qb5 h1N Ng5+ Ke7 Nh7 Bf6 Bf3+ Kd6 Rg4 Re7 Kg6 Ng3 Qh5 Nf1 Qcf5 Nh6 Qc2 Nf5 Rg3 Rd3 Bd2 Nc3 Re1 Nb1 Bc1 Rd1 Rg5 N1g3 Rh1 Nf1 Qeb3 Nc4 Bf4+ Ke6 Qe3+ Kd7 Rg3 Nb6 Rg4 Ree8 Kf7 Re6 Rg8 Re5 Kg6 Re7 Qed3+ Ke6 Qe3+
3K2Q1/B1n2r2/1Q3RR1/4q1rP/R1qB2Pn/nQ1N1bpq/1r1k1N2/2b3n1 b - - 0 1 legal: proof: g4 g5 a4 h5 f4 d5 c4 e5 cxd5 b5 axb5 h4 Bg2 e4 Qb3 gxf4 Qg3 hxg3 Bf3 exf3 h4 Kd7 b4 Kd6 e4 Ke5 h5 Kd4 e5 Kd3 d6 f5 b6 a5 b7 c5 b5 f2+ Kf1 c4 Kg2 f1R Kh3 a4 e6 f3 d7 f2 b6 a3 e7 f4 Kh4 c3 Kg5 f3 Nh3 c2 Ra2 Qe8 Bb2 c1N Bd4 Nh6 Kf6 Na6 d8Q Rg8 b8B Ne2 b7 Ng1 Nc3 Rg5 Qb6 Nc7 Ne2 Nf5 Ba7 Nh4 b8Q Bh6 Rh2 Qb5 e8Q Bb7 Ke7 Qe5+ Kd8 Bc6 Ra1 a2 Qg8 Rb1 Rh1 f1Q Nf2+ Kc2 d3 Rb2 Nf4 Qh3 Rf1 a1N Rh2 Nb3 Ra1 Bb7 Ra4 Kd2 Rg2 Na1 Qbb3 Bc8 Q8b6 Nc2 Rh2 Na3 Rh1 Ne2 Rc1 Ng1 Rc6 Rb8 Rg6 Ra8 Bc5 Rb8 d4 Rb7 d5 Bd7 d6 Bc6 d7 Bd5 Nh1 f2 Nd3 f1Q Nhf2 Bf3 Bd4 Qc1 Kc8 Qc6 d8R Qc4 Rd5 Ncb5+ Rc5 Rf7 Rcc6 Nc7 Rcf6 Rf5 Ra5 Ke2 Bc5 Bc1 Kd8 Kd2 Bd4 Rg5 Ra4
4n1k1/6bn/NQ3BRq/2b2Pb1/rp2q1q1/1r1PQ3/1n1B3Q/N1KBqR2 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 b5 cxd5 f5 Bb2 fxe4 Ba3 Bd7 Bb2 axb4 Bc1 b3 Bc4 b4 Bf1 Bb5 axb5 Bh6 Ra7 Bg7 Ra1 Bf8 g4 Kf7 f4 e5 g5 c5 f5 h5 d6 b2 b6 h3 d7 e3 b7 e4 Na3 b1N Bb2 h4 Bf6 h2 Ne2 h3 Nc1 c4 Ke2 c3 Nc2 Na3 Ke1 e2 Be5 Ra4 Ne3 c2 Nb3 c1B Nc5 Na6 b8Q Nc7 Bc3 Bg7 Nc2 Nf6 g6+ Kg8 Rb1 Nh7 Rg1 h1Q Na6 h2 Qb6 Ne8 Na1 Nc4 Qc2 Qg5 d8B Qg4 Bdf6 Nb2 d3 Bg5 Qc1 Ra3 Bg2 Rb3 Bf3 Qhg2 Qce3 h1Q Kd2 e1B+ Kc1 Qh6 Bd2 Bf2 Bd1 Q2f3 Qf4 e3 Qh2 e2 Qe3 e1Q Rf1 Bf8 g7 Qfe4 Qb6 Na4 Rb2 Bfe3 Rc2 Nb2 Rc6 Bd4 Be5 Bfc5 Rg6 Kf7 Bf6 Rf8 Kc2 Kg8 Kb1 Rf7 Kc1 Ra7 Nc7 Bge3 Bh4 Qgg3 Rg5 Ra4 Na6 Kf7 g8Q+ Ke7 Qc4 Kf8 Qc3 Qgg4 Rg6 Bg7 Bf6 Bg5 Qd4 Kg8 Qe3
2n4K/1N4N1/b1RnbbB1/rB1p2Qb/1qP4q/Q2R4/3qPr1k/B1r2N2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 a4 c5 d4 cxd4 f4 b5 axb5 axb4 Rh3 exf4 Rh2 Qa5 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 Kh5 d5 g4 f5 c4 f3 b6 d3 b7 d2 g6 Kf4 g7 Kg3 g5 f4 g6 b3 Qc2 d1Q Nd2 f2 Ra6 f3 Qa2 b2 Rh2 b1Q Bg2 f1R Nb3 f2 Bb2 Nf6+ Kh6 Be7 g8B Ne8 g7 Nd6 Be6 Nc6 b8N Bf6 Nf3 Rf8 Nbd4 Ne7 Ba1 Qb4 Rc6 Ba6 Bd7 Nec8 Qa3 Qde1 Ne6 Qed2+ Nf4 Rc1 g8Q+ Bg5+ Kg7 f1B Ne6 h5 Bh3 h4 Bf5 h3 Bg6 Bf6+ Kh7 Qe7+ Ng7 Qd8 Rh1 h2 Kh8 Bh3 Rd1 h1B Nh2+ Bf3 Nf1+ Kg2 Bde8 Be6 Nd7 Bh5 Nc5 Rf7 Nb7 Qe7 Ng3 Kh2 Bd7 Bb5 Be8 Ra5 Bd7 Ba6 Qd8 Qc2 Rd3 Qcd2 Qg8 Bd4 Qd8 Qh4 Qg5 Rf2 Nf1+ Kh1 Rc7 Be5 Bb5 Bf6 Qe3 Kg1 Rc6 Kg2 Qg5+ Kh1 Ne3 Kh2 Nf1+
B4nNK/k1Qrq3/1rPR1Bq1/3nq3/5b2/2Bbq3/2RQbpP1/1Q1N2r1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 a4 c5 d4 cxd4 f4 b5 axb5 axb4 Rh3 exf4 Rh2 Qa5 Rh1 Qd8 Kd2 h5 Kd3 d5 c4 Kd7 e4 Kc7 e5 Kb6 e6 f5 g6 b3 e7 h4 e8Q f3 g7 f4 Nh3 b2 Qde1 f2 Qf7 f3 Qfe8 Bf5+ Q1e4 Qe7 Nd2 Nd7 Qf7 Rh7 Be2 f1R Ra2 b1Q+ Rc2 Rb8 c5+ Ka7 Bb2 Ngf6 g8Q Bh6 Bc3 Bf4 Qd8 Rg1 Nf2 h3 Nd1 f2 Bf3 h2 Qg7 Nf8 b6+ Ka6 b7 Ka7 Qf7 Qe5 Qfc7 Rd7 Nc4 Qb6 Nce3 Qbd6 Ng4 Qde7 Nh6 Bh7 Bh5 Bf5 Ng8 Bg6 Ke2 d3+ Kf3 d4 Qf5 Nd5 Kg4 Bh7 Be8 d2 Kh5 d3 Bf7 Bg3 Kh6 Qe3+ Kg7 Bf4 Kh8 Bg6 Nb2 d1B Be8 Be2 Nd1 d2 Bf7 Nb6 Bd5 Bh7 Bf3 Nd5 Qd3 Bg6 Qb5 Bgd3 Qb1 Rd6 Qdd7 Rb6 Qdd6 Rd8 Qh6 Rd7 b8B+ Ka8 Qd8 Kb7 Bbe5 Ka7 Bf6 Q3e5 Ne3 d1Q Qc7+ Rb7 Be4 Qc1 Nd1 Qe3 Bf3 Re1 Rf1 h1Q Rg1 Qhh5 Rh1 Rf1 Rh4 Bh2 Rd4 Qg6 Qg5 Rg1 Qf4 Nb4 Rd6 Nd5 Qd4 Bf4 Be4 Bb5 Qd2 Bbd3 Qc8 Rb6 Qc7+ Ka6 Bf3 Nb4 Bb7+ Ka7 c6 Nd5 Ba8+
1b2b1nr/bq1QR1N1/2pbn3/1NNrr1Q1/1B5Q/R1KPq2q/3P4/2B4k b - - 0 1 legal: proof: f4 b5 g4 d5 a4 e5 axb5 exf4 g5 d4 g6 d3 cxd3 f3 Bg2 fxg2 Ra3 hxg6 Ra2 g5 Ra6 g4 Ra1 g3 b4 Kd7 e4 Ke6 h4 Ke5 h5 Kf4 h6 a5 h7 f5 e5 g5 e6 a4 b6 g4 b7 c6 b5 a3 e7 a2 e8Q Na6 b8B+ Nc7 b6 Qd7 b7 Bd6 Nc3 Ra5 Rh4 Ne6 Qc2 Re5+ Nge2+ Kf3 Ne4 g1B Bb2 Kg2 N2c3 f4 Kd1 f3 Nb5 f2 Nc5 Bh2 Bc1 Kh1 Rh5 Qc7 Qd7 g2 Qb1 g1R+ Kc2 f1Q Kc3 g3 Rg5 g2 Rg7 Qe1 Re7 Qe3 Qb4 Rf1 Qh4 g1B Qg5 Rff5 Ba7 Qh3 b8N Qb7 Nba6 Rd5 Nac7 Rfe5 Ne8 Bf4 Qd8 Bd7 Ng7 Be8 Qd7 Bge3 Bb6 Bf2 Ba5 Qe3 Rb1 a1Q+ Rb2 Qh3 Bb4 Qaa7 Ra2 Bh2 Ra3 Bb8 Na6 Qae3 Nc5 Rf5 Nd4 Bhd6 Nb5 Rfe5 Qf4 Qe4 Nb3 Bfa7 Qg5 Qee3 Nc5 Nh6 Ra2 Rg8 h8Q Rf8 Qh7 Rh8 Ra3 Ng8 Qhh4
1b3N1Q/4qrN1/Pq5Q/3r3n/2B1r1bn/Bn1P3p/K1NrR1k1/R2Q1b2 b - - 0 1 legal: proof: e4 a5 b4 axb4 Bd3 d5 Ba6 d4 Bf1 d3 cxd3 Bf5 Qc2 Bh3 Qd1 Bc8 Nf3 f5 exf5 c5 Ng1 c4 h4 g5 Rh3 gxh4 Ke2 c3 Rh1 cxd2 a4 Kd7 f4 Kd6 g4 b5 f6 h5 f7 e5 g5 e4 g6 h3 a5 h2 a6 b3 f5 Ke5 g7 Kf4 f6 Kg3 Ra5 h4 Ra2 e3 Nh3 b4 Ra5 b2 Bg2 b3 Nf2 h3 Qc2 d1R Ra3 Bg4+ Bf3 Bd6 f8Q Ne7 g8Q Rh5 f7 Rd5 Ra2 Ng6 Re1 h1B Qc6 Bg2 Qgg7 Nd7 Qa4 Nf6 Qgh8 Ra7 Na3 b1Q Qfh6 b2 f8N Qe7 Nc2 Nh5 Ra1 Bb8 Nh1+ Kh2 Ng3 Nh4 Nf5 Rb7 Rg1 Rd2+ Ke1 e2 Ng7 Bf1 Rg2+ Kh1 Be4 Ra7 Bf5 Rc7 Be6 Rb7 Rg3 Ra7 Re3 Kg2 Re5 Qd6 Re4 Rf7 Re3 Qe7 Qb3 Rdf5 Bc4 Rd5 Re4 Qa2 Re5 b1N Ba3 Qb2 Qa4 Qb6 Qb3 Nc3 Qb1 Na4 Qd1 Nc5 Nb4 Rc2 Re4 Rc1 Kd2 e1R Re3 Rb1 Kc2 Rb2+ Kc1 Ra2 Kb1 Rd2 Re5 Nb3 Nc2 Re3 Ka2 Re1 Rf5 Re4 Rf2+ Kg1 Re2 Kh1 Re3 Kg2 Re2+
6q1/2br4/pNBPR1kP/1QR1n2r/5qB1/q3rbn1/2QK2Qn/n1N1N3 b - - 0 1 illegal: No possible last move
1q2b2q/4b1kP/Qr1nb2R/PQR2Nq1/NQr1p1nn/7K/2q3BB/4R3 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 d4 d5 g4 hxg4 cxd5 c5 Qb3 cxd4 Qa4+ Nd7 Qd1 Nb8 h4 Kf7 a4 b5 f4 e5 Kf2 g5 Kg2 g3 a5 b3 f6 b2 d6 d3 h5 b4 f5 g4 h6 e4 d7 d2 h7 b3 Rh6 Ra6 Nh3 Nc6 Na3 b1Q Nb5 b2 Qe1 d1B Ra2 Na7 Nc3 Ba4 Bf4 Rb6 Ng1 Qc2+ Qe2 b1Q Ra1 Be7 Nf3 Nb5 Nh4 Nd6 Be5 Qf8 d8Q Be6 Qc8 Be8 Qa6 Qb5 Re1 Qg7 Rh5 Nh6 Na4 Rg8 Rg5 Qh8 Rg6 Kf8 f7 Qbb1 Rf6 Kg7 f8R Qb4 Bd4 Qb5 Bg1 Qbb1 Bh2 Qbb2 Kg1 g2 Kf2 g1N Kg3 Nf3 Bg2 Rb4 Qeb5 Rc4 Qbc6 Qb8 Qcb5 B8f7 Rc8 Be8 Rc5 Rf8 Kf4 g3 Rg6+ Kf7 f6 Ng4 Nf5 Nh4 Rh6 Rg8 Rc6 Rg6 Rc5 Kf8 f7 Rf6 Bf3 g2 Kg3 g1Q+ Kh3 Rg6 Ng3 Kg7 Bg2 Kf6 Nf5 Qe3+ Bf3 Qg5 f8Q+ B8f7 Qfc8 Be8 Qcb7 Kf7 Bg2 Kf6 Ng3 Kg7 Q7b6 Rf6 Nf5+ Kf8 Kg3 Bc8 Ra1 Nf7+ Kh3 Rd6 Rd1 Be6 Qd8 Rb6 Qd2 Nd6 Qdb4 Kf7 Re1 Kf8 Nd4 Kg7 Nf5+
n6Q/k6p/r7/N2n2qQ/Nn4Pq/1rQ1R1RP/nB1bRq1b/b4B1K b - - 0 1 legal: proof: b4 b5 e4 d5 a3 dxe4 a4 f5 axb5 c5 Ra5 cxb4 Ra6 Qd5 Ra1 Qd8 g4 fxg4 f3 g3 Ra4 g2 Ra6 Qb6 Ra1 Qd8 Nc3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 fxg4 Qd4 Nh3 Qd7 Ng1 Qd8 d4 Kd7 c4 Kc7 b6+ Kb7 d5 e5 c5 a5 d6 b3 d7 a4 h3 a3 Bh6 e3 Ne2 g1Q Nc1 a2 Nd3 e2 Na3 e4 Nb4 b2 Nb5 b1N Qd6 g2 Qg3 Qg5 d8Q Na6 Qh4 Nc3 Nc6 Ne7 Rh2 Ned5 Bg7 Nac7 Qh5 Ra6 Rb1 a1N Rb3 Na2 Nc3 Na8 Na4 Bd6 Re3 Be5 Qf6 Rb8 Qf8 Bd4 Qh8 Bf6 Rg3 Qd4 Re3 Nc2+ Kf2 g1B+ Kg2 e1Q Kh1 Ncb4 Rhe2 Bh2 Rg3 Qdf2 Rge3 Ba1 Bb2 Nac7 Na5+ Ka8 b7+ Ka7 c6 Na8 c7 Qfh4 c8Q Qef2 Rg3 e3 Rd2 e2 Qcc3 e1B Re2 Bd2 Ree3 Rf8 b8R Rf3 Re2 Rd3 Rbe8 Re3 Qc6 Rd3 R8e3 Rb3 Qcc3
2NK3R/1k1n2P1/2q2rbb/r1Bq3Q/qN3Qr1/p5PB/n1N1q3/QR3b2 b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 cxb5 g5 a5 c4 a6 Nxa6 d4 c3 d5 Nb8 d6 Bxd6 hxg5 Bf8 Kf2 h5 Kf3 d5 b4 Kd7 e4 Kc7 g3 a5 b6+ Kb7 e5 f5 b5 c2 e6 a4 e7 a3 e8Q h4 g6 h3 Qd3 h2 Qde3 d4 Qd3 Qd7 Bh3 Bh6 g7 Nf6 Qf1 d3 Be3 c1Q Nd2 Qcc6+ Ne4 d2 Qh5 d1Q+ Ne2 Nd5 Bc5 Nb4 Rb1 Ra5 Qg1 Q1d2 Nd4 Na2 Nc2 Qe8 Qd4 Nd7 Qa1 Qdd5 Qb2 Rf8 Qa1 Kb8 b7 Rf6 Rb3 Kc7 b8N Kb7 b6 Qa4 Rhb1 h1R Na6 Rd1 R3b2 Rd4 Nab4 Qee6 Rh1 Qec6 Rbb1 Rc4 Kf2 f3 Nd6+ Kb8 b7 Rg4 Rh2 f4 Rhh1 Ne5 Rh2 Bf5 Nc8 Bg6 Rhh1 Kc7 Rh2 Nd7 b8Q+ Kd8 Kf1 f2 Ke2 f1B+ Kf2 f3 Qf4 Qg8 Ke3 f2 Kd4 Qgb3 Nd6 Kc7 Nc8+ Kb7 Rh1 Be2 Rh2 f1Q Rh1 Qcb5 Rh2 Qc3+ Kd5 Qfe1 Rh1 Bf1 Rh2 Qee2 Rh1 Rf8 Kd6 Qcb3 Rh2 Qf7 Rh1 Qfe8 Rh2 Rf6+ Kd5 Q8e7 Qh4 Ka8 Bg2 Bg5 Qh8 Qa6 Rh6 Qe8 Bh3 Kb7 Rh7 Bf5 Rh6 Qh5 Qe8 Q6b5 Rh8 Bh6 Qee5 Bg6 Qeg5 Rf5+ Kd6 Rf8 Qge5 Rf6+ Ke7 Qc6 Kd8 Qf5 Qd5 Qfd3 Qdf5 Qdd5 Qh5
2n2R1N/2BP2n1/n2BR1bN/2r1q3/Pk1Qpr2/5bKb/2b3Q1/rq2N1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 c4 fxe4 f5 d5 cxd5 g6 h4 Nf6 g4 Nh5 f6 Bh6 g5 Ng7 Bh3 Nf5 Bg4 Bg7 Bh3 Nh6 Bf5 gxf5 g6 Ng8 Na3 Bh6 Nb1 Bg5 hxg5 Ra5 Rh5 Ra7 Rh1 Ra8 Kf2 Kd7 d4 Kd6 f7 h5 f8B c5 a3 b5 g7 h4 g6 e3+ Kf3 h3 Qf1 e2 Qe1 c4 Qc3 e1Q Bb2 b3 Qc1 c3 Nd2 h2 Nh3 f4 Nb1 c2 Bc3 b4 Bd2 b2 Qd1 c1R Ng1 b3 Be3 Qe8 Nc3 b1B Nce2 b2 a4 Bh3 Ra3 Bc2 Bf2 b1B Re3 Ra5 Re6+ Kc7 d6+ Kc6 Qd3 Rc5 d5+ Kb6 d7+ Ka5 d8B+ Kb4 d6 Na6 d7 Rh4 Bc7 Qd1 Rd6 e5 Re6 Ne7 g8N Nc8 g7 Qe1 Bd4 Qd1 Kf2 f3 Kg3 f2 Nh6 Rf4 g8Q f1B Nf3 Bfg2 Ne1 Bf3 Rf1 h1N+ Kh2 Qh5 Qg2 Ng3 Bfd6 Nf5 Bg1 Ng7 Kg3 Qe8 Qd5 Bg6 Qd3 e4 Qe3 Bc2 Qd4+ Kb3 Rf2 Ra1 Rf1 Qb1 Rf2 Rff5 Nf4 Qe7 Nd5 Qf6 Ne7 Rf4 Rf1 Be8 Ng6 Qe5 Nh8 Bg6 Rf2 Bd3 Rb2+ Ka3 Rb8 Bc2 Ra8 Kb3 Qd5+ Kb4 Rb8+ Nb6 Rf8 Nc8 Qd4+
q1r4Q/2PNb3/2n5/R1N5/r2bP2n/r2pN1Kb/R1r2BRQ/1qnk1B2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 c5 a3 cxd4 a4 b5 axb5 axb4 Kf2 Ke7 c4 Ke6 e4 Ke5 h4 f5 b6 g5 h6 d5 h5 b3 h7 d3 b7 Kd4 c5 g4 h6 b2 c6 d2 c7 g3+ Kf3 g2 Qe2 d1N Ra5 Nc6 b8Q Nc3 Ra7 Be7 Kf2 f3 Bg5 f4 Qe1 Bh3 Qe2 Na2 Ra3 Ra4 Qa8 Nc1 Nc3 b1Q Ra2 Qc8 Bh4 Qa6 Qb7 Qa8 Nd1 Ra3 Ne3 Kc3 Rh2 d4 Qa7 d3 Qd4+ Kb3 Qd2 Ra4 Ne2 g1B+ Ke1 Ra3 Rg2 Ra4 Nc3 f2+ Kd1 Ra3 Na4 f3 Qa1 Nd4 Bg3 Nf5 Qe2 Nh4 Qg7 Bf6 Nc5+ Kc3 Qf8 Ne7 Qc8 Re8 h8R Nc6 h7 Be7 Rf8 Rd8 h8N Rd4 Nf7 Rda4 Na6 Kb3 Ne5 Kc3 Nd7 Kb3 Rf5 Kc3 Qe1+ Kb3 Be2 f1R Ra5 Rf2 Bf1 Rc2 Qe2 f2 Qh5 Kc3 Qch8+ Kb3 Be2 f1R+ Be1 Rf2 Bf1 Rf3 Bf2 Rf8 Ke1 Rc8 Q5h7 Bh2 Qh6 Be5 Nac5+ Kc3 Qd6 Bg7 Qh2 Bd4 Bg1 Ne2+ Kf2 Kd2 Qd6 Nc1 Kg3+ Ke1 Bf2+ Kd2 Kh2 Bg4 Qg3 Be6 Qh3 Bg4 Kg3 Bf5 Qh2 Bh3 Nd5 Kd1 Ne3+
3NR2k/KP1b1q2/3qq1r1/R1Nb1R2/Q2b3P/2nq3B/npBrQ3/rQ6 b - - 0 1 legal: proof: c4 e5 f4 exf4 a4 h5 g4 d5 cxd5 b5 gxh5 bxa4 b3 a3 Bb2 axb2 Kf2 a5 d4 f5 h4 Kf7 e4 c5 d6 g5 h6 c4 d5 f3 Ke3 a4 Kd4 f2 Kc5 f4 e5 g4 h7 Kg7 b4 a3 b5 a2 b6 f3 b7 c3 e6 c2 e7 c1Q+ Nc3 g3 e8B g2 Ba4 Qh6 Nge2 g1R Nf4 Qe6 Bc2 Nf6 Qb1 Bd7 Na4 Rg6 Bh3 Nc6 Re1 f1Q Re2 Rg8 h8R f2 Rh5 Nb4 Rf5 Kh8 Re4 Qde8 Kb6 Q8f7 Nc5 Qd3 Ree5 Rd8 Ka7 f1B Re4 Bg2 Ree5 Qee8 Re7 Ne4 Nfe6 R8g7 Qh1 Nc3 Qb1 Bc8 d7 Bh1 d6 Bd5 Na6 Rg8 Nac5 Bg7 Qh1 Bd4 Qe4 Qef8 Qe2 Re8 d8Q Bd7 Qb6 Rd8 Qc6 Rg1 Qa4 R8g6 Re1 a1Q Rc1 Rb8 Nd8 Qa2 Ra1 Qac4 Ra3 Ra1 Ra2 Bb5 Ra3 Nba2 d7 Rc8 Qa6 Rcc6 Ra5 Ba4 Qb5 Rcd6 Qb4 Bac6 Qa4 Qb3 Ne6 Qbc4 d8Q Bd7 Qb6 Qb3 Nd8 Qe6 Qa6 Qa3 Qf1 Qff7 Qh1 Rg2 Qc1 Rd2 Qb1 Rb6 Nb3 Qad6 Nc5 Q3g3 Qaf1 Qd3 Qe2 Qde5 Qh1 Qc6 Qb3 Qcc7 Qb1 Rg6 Qb4 Qcd6 Qa4 Qee6 Re8+
qBKNN1Bq/1p2P2b/1k2n1Rr/3nR3/5b1b/3q3Q/b3QPr1/B5Nn b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 e5 e4 exd4 e5 f6 Qg4 f5 Qe4 fxe4 Kd2 Kd7 a4 c5 h4 Kc7 d6+ Kb6 d7 g5 h6 e3+ Kd3 g4 Ke4 g3 Kf5 b3 Ke6 c4 h7 c3 h5 c2 h6 b2 Bc4 e2 Bg5 c1B Bd2 e1Q Bb3 g2 Na3 b1B Bf4 d3 Nb5 d2 Rh5 d1Q Nc7 Be7 Ne8 Na6 Rg5 Qc2 Rg6 Qd3 Ra2 Nf6 Re2 Rg8 h8B Qec3 h7 Ba2 Bg7 Rb8 h8Q Nd5 Qh3 Bh4 Kd6 Nc5 e6 Qa5 e7 Ne6 Ba1 Qa8 Re5 Rg7 Bg3 Bf4 Bc4 Rh7 Bb3 Rh6 a5+ Kb5 a6 Kb6 Ne2 g1N a7 Nf3 Bc4 Nfd4 Ng1 Ne2 Bh2 Ng3 Bb3 Nh1 Bg3 Ka6 Bh2 Qa5 d8N Qac3 Bg3 Bd7 Bh2 Ba4 Bg3 Kb5 Kd7 Rc8 Bh2 Rc6 Bc4+ Kb6 Bg3 Bc2 Bb3 Qb8 a8Q Bcb1 Qa3 Qa8 Qb2 Qcd4 Qe2 Rc1 Nf3 Rg1 Bh2 Rg2 Ng1 Qaa4+ Kc8 Bc2 Re4 Qh8 Re5 Qe3 Rg4 Bh7 Rg6 Qd3 Rh5 Bc1 Bb8 Bf4 Re5 Qa8 Qe1 Nf6 Ra5 Ng5 Bg8 Ne6 Re5 Nd5 Qe2
1RqQ2br/Rr5n/n5Q1/4prPR/2rP1nn1/1k1B4/nBB1N3/3KbN2 b - - 0 1 legal: proof: h4 g5 a4 gxh4 c3 b5 axb5 d5 Ra3 d4 cxd4 Bh6 Ra1 Bf8 d3 e5 Ra3 f6 Ra2 e4 Ra1 exd3 e4 Kd7 e5 Ba3 e6+ Ke8 Qe2 Bf8 Qe5 fxe5 b4 Ke7 f4 Kd6 g4 Kd5 g5 Kc4 f5 c5 b6 a5 b5 h5 e7 h3 e8B a4 f6 h4 f7 h2 b7 h3 b6 a3 Be2 a2 Ba4 Nf6 Kd1 Na6 b8Q Ra7 b7 Be6 Bf3 d2 Qc7 Nh7 b8R Rb7 Bg2 Qc8 Bd7 Kb3 Bgc6 c4 Na3 c3 Bf3 c2+ Ke2 d1R Be8 Rf1 Bd7 Bb4 f8Q Bg8 Nc4 Be1 Bb2 c1N+ Kd1 Ne2 Be4 Rf5 Qcd8 Nf4 Rb1 a1N Qf7 Nc2 Qg6 Ncb4 Bd3 Na2 Ne3 Qc5 Ne2 Qc8 Rf1 h1N Ra1 h2 Be8 Ng3 Rh1 Ne4 Nf1 Nef6 Bc6 Ng4 Bce4 Qc6 Bb1 Qc7 Bed3 Qc8 Rg1 h1R Rg2 Nh6 Rh2 Ng4 Rh5 Rh2 Neg3 Rc2 Ne2 N2b4 Ra4 Na2 Ra5 Rc4 Ra4 Nc7 Ra7 Na6 Bbc2+
qR3N2/n4k2/Bb1p3R/2bn3N/Brb4Q/PnQQP2r/K3b3/n2B1n2 b - - 0 1 legal: proof: f4 e5 g4 a5 d4 c5 b4 axb4 fxe5 cxd4 Bg5 f5 gxf5 h6 Bg2 hxg5 Bh3 Qb6 Bf1 Qd8 Kd2 b5 Kc1 b3 Kb2 b4 h4 d3 c4 d2 h5 g4 c5 g5 h6 g3 f6 g4 c6 g2 h7 g3 e6 Ra4 e7 Kf7 c7 Ba6 c8B Nc6 a3 Na7 Nh3 g1N Nf2 g2 Rh2 Nf3 Nh3 g1B Nc3 Nd4 Rb1 Nc2 Ne4 Bc4 Ba6 Bb6 e3 Qa8 Ng3 Na1 Qg4 d1B Nh5 Bde2 N3f4 d6 Qh4 Bg7 Ne6 Bc5 Rc1 Bb6 Kb1 b2 Nf8 Bc5 Rc3 Bb6 Rb3 Bc5 Ka2 b1N Bh3 Nd2 Bf5 Nf1 Bc2 Bb6 Bd1 Bc5 Kb1 Bb6 Rb2 b3 Rh3 Rb4 Rh1 Nh6 Rh2 Ng4 Rh1 Rg8 h8Q Bc5 Qh7 Rh8 Qd3 Bb6 Rd2 b2 e8B+ Kg8 Bea4 Kf7 Rc2 Rh6 Rc3 Rh8 Rb3 Bc5 Ka2 b1N Qe1 Bb6 Qec3 Nbd2 Nf4 Rh3 Rh2 Rg3 Rh6 Rh3 Nh5 Ne5 Bb7 Nec6 Bc8 Ne7 Ba6 Bb5 Rb2 Nd5 Rb1 Ndb3 Rb2 Ke8 f7+ Ke7 Nh7 Bf6 f8Q+ Ke6 Qb8 Kf7 Nf8 Bfd4 Qd8 Bdc5 Qh4 Bc4 Re6 Nc1+ Kb1 Ba5 Qg5 Rb7 Qh4 Bd8 Rb5 Ncb3 Ka2 Rb8 Rh6 Rb6 Ra5 Rb4 Rb5 Bc7 Rb8 Bd8 Qde4 Bdb6 Qed3
1qnB1rQ1/B1b3N1/P1r1rNPK/2r1b3/N7/nk1bpQ1R/R3R3/2n2b2 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f6 Be2 f5 exf5 gxf4 g5 Nd7 Bf3 Nb8 Bg4 hxg4 Ke2 Kd7 h4 Kd6 a4 Kc5 d4+ Kc4 h5 e5 g6 b5 h6 c5 d6 g3 Kf3 b3 Kg4 e4 Kh5 g2 f6 e3 d5 b4 f7 f3 h7 f2 a5 f1B a6 b2 d7 b3 d6 Bg7 f8R Nc6 Bd2 Nb4 Bc1 Ne7 Qd2 Nd3 Rf5 Re8 h8Q Be5 Nc3 b1R Kh6 b2 Rf2 Kb3 Qg7 c4 Nh3 g1B Ng5 Bgh2 Na4 c3 Qd1+ c2 Qf3 Qc7 d8N Qb8 Re2 Bf5 d7 Nc8 Qg8+ Re6 Bd2 c1R Ne4 Rc5 Bc3 Rc1 Bd4 b1N Nf6 Na3 Raa2 Rc6 Bb6 R1c5 Ba7 Bhg3 Rh3 Nc1 Nb7 Bd3 d8B Bc7 Nd6 Be5 Nf5 Qb6 Qg4 Nd6 Be7 Rf8 Bd8 Qb8 Qf3 Nc8 Ng7
Q2r1B2/2rQ1b2/2Rb1n1b/kP2R3/1q2PNp1/3Knb2/n1R3B1/QN3n1q b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 h4 Kd7 d4 g5 Kd2 f5 e4 c5 d6 g3 d5 g2 h5 f3 h6 b3 h7 c4 Na3 f2 Be2 f1N+ Kc3 b2 Bg4 b1B Qe2 Nc6 Nf3 g1Q Rh2 Qa5+ Kb2 c3+ Kb3 c2 Kc4 Nf6 Bh3 Nb4 Qd1 Na2 Nd4 Qh1 Ne6 f4 Bg2 f3 Kd3 f2 Nf4 Qb4 Qg4+ Kd8 d7 Kc7 d8R Kb6 d6 Ne3 d7 f1N Re8 Ra7 d8Q+ Rc7 Re5 Ka5 Qgd7 Bd6 Qf8 Rg8 h8Q g4 Qfg7 Rd8 Bb2 Bb7 Bd4 Bd5 Bc5 Bf7 Rh6 Nc3 Ra2 c1B+ Rc2 Bba2 Qgg8 Bab3 Nb1 Na2 Rg6 Be8 Qd5 Bf7 Qd4 Bd2 Qa1 Bc1 Rb2 Bd1 Rc2 Bf3 Qf8 Nh5 Rge6 Nf6 Qfe8 Bf8 Rc6 Bh6 Bf8 Bb2 Rf5 Be5 Rg5 Bd6 Re5 Rb8 Qec8 Ra8 Qb7 Rd8 Qa8+
1k6/N6Q/1b2P2P/r1nq1qN1/4Bq2/1r1B2RR/1r2QpBK/qrb1R1n1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 e5 e4 h5 f3 hxg4 Ke2 b5 axb5 Bb7 Bg5 Rh6 Be3 d3+ Ke1 d2+ Ke2 Bc6 Bb6 Qg5 Bd4 exd4 e5 Be4 fxe4 Qd8 Qe1 Rh5 Qd1 Rh8 Kf2 a5 Kg2 g5 b4 d5 c4 Kd7 h4 Kc8 h5 f5 e6 d3 h6 a4 e5 a3 c5 g3 c6 a2 e7 d4 e8B f4 c7 f3+ Kh3 g2 b6 g4+ Kh2 g3+ Kh3 Qd7+ Kh4 Na6 b5 Ne7 Bh5 Nc5 Ne2 g1B Qc2 d1R Qd2 g2 Kg3 Ng6 Na3 Rb1 Nf4 Rb2 Ne6 Nf4 Re1 a1Q Qe2 d2 Ng5 d1Q Rh3 d3 Bg6 d2 Be4 Qf5 e6 Ra5 Bd3 Be3 Kh2 g1R Bg2 Qdc1 Rg3 Kb7 c8B+ Kb8 Bb7 d1Q Bbe4 f2 b7 Be7 Rh3 Bd8 Rg3 Bb6 Rh3 Kc7 b8R Qdd2 Ra8 Rb8 Ra7+ Kc8 Rg7 Qc4 Rg6 Qcd5 Rg7 Rb7 Rg6 Kb8 Rg7 Ba7 b6 Qb4 Nb5 Bc1 Nh7 Qbd4 Rgg3 Qdf6 Ng5 Qf8 Qf3 Ne2 Qe3 Rf1 Qd2 Ng1 Qe2 Rf7 b7 Bb6 Na7 Qf4 Bb1 Rf5 Bbc2 Re5 Bed3 Re3 Bde4 Reb3 Bcd3 Q8f5 Nc8 Kc7 b8Q+ Kd8 Qa8 Kc7 Qc6+ Kb8 Qd7 Qh4 Qe7 Qhf4 Qh7 Bd2 Rc1 Re1 Na7 Rd1 Rc4 Rdb1 Rc1 Be3 Rf1 Bc1 Re1
4b1K1/N3P2N/1Bqbp1bR/Qq1RB1N1/3nr3/2r2Pnr/1r1R4/3bkQ2 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 h4 gxh4 e4 Nd7 d4 exd4 e5 Nb8 e6 Qd6 Ra3 Qd7 Ra1 Qd8 e7 Bh6 Be2 Bf8 Bd3 Kd7 Bf5+ Ke8 Be6 fxe6 Bf4 Kd7 Bd2 Qe8 Bc1 Qd8 Kd2 Kd6 Kd3 Kc5 Ke4 Kb4 Ke5 a5 g4 h5 b6 c5 d6 h3 d7 d3 b7 d2 b3 a4 g5 h4 g6 c4 g7 a3 Nf3 h2 Nd4 h3 Qg4 d1B Qg5 c3 Qe3 a2 Nf3 c2 Qg5 Nf6 g8N Bh6 Be3 c1R Bb6 Ra4 Qf4+ Ne4 Nf6 Rc3 Ng5 Qe8 d8Q Bd7 Na3 Bb5 Rb1 a1R Rb2 Ra2 Rd2 Rb2 Nfh7 Qh5 Rd5 Be8 Nb5 Qe2 Na7 Qb5 Qf7 Ng3 Kf6 Nc6 b8R Nd4 Kg6 Bg7 Qc7 Be5 Rbd8 Bd6 Kg7 Rc5 Qf6 Kc3 b4 Kd2 Rd7 Rc3 Qf3 Qf1 b5 Ke1 Qc5 Rac4 Qa3 Bg6 Qa5 Be8 Bd8 Ra4 b6 Bg6 b7 Be8 Rg1 h1Q b8B h2 Bb6 Qg2 Qf6 h1B Qf5 Qe4 B8c7 Bhf3 Rh1 Bfh5 f3 Rc4 Qh3 Bhg6 Qg2 Ra4 Rh6 Qb5 Bb8 Nc2 Rd2 Qec6 Rd8 Re4 Qh3 Bc5 Be5 Nd4 Rd5 Bd6 Qg2 Rf8 Qh3 Rff4 Kg8 Rh4 Qg2 Rh3 Qf1+
B2R3K/P1nq1N2/2q1pBQ1/7Q/qn1nPb1N/3RN1nr/b2k3q/r6R b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 d4 c5 fxg5 h5 g4 d5 cxd5 cxd4 Bd2 hxg4 Bf4 Qb6 Bc1 Qd8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kc4 h4 f5 a4 b5 e4+ d3 a5 g3 h5 b3 g6 f4 a6 b4 g7 f3 d6 b2 h6 b3 h7 g2 d7 f2 Qd2 Nc6+ Kf5 Nf6 Kg6 Nd4 g8Q+ Nd5 Rh2 Bh6 Ra5 Bf4 Ne2 g1Q+ Kf7 Nc7 Rh1 Qh2 Nbc3 b1N Qd1 b2 Ng3 Na3 Qg6 b1Q Kg7 Nac2 Ra3 Qb5 Qdh5 Qc6 Nd5 Nb4 Nf5 e6 Rb3 Bb7 Nh4 Qe8 d8N Qed7+ Nf7 Ra7 Be2 f1N Bb2 Ng3 Bd1 d2 Rd3 Ba8 Ba4 d1Q Bc3 Qa1 Bb5+ Kb3 Ne3 Qa4 Bb2+ Qc3 Ba1 Bd5 Bc6 Bc4 Ba8 Bd5 Nef5 Kc2 Bb2 Qcc6 Ba1 Rd8 h8R Ba2 Bc3 Rb8 Rd8 Rb5 Kh7 Rc5 Ba1 Rc3 Kh8 Rb3 Rc3+ Kd2 Ne3 Rb1 Bb2 Ra1 Ra3 Rb7 a7 Rb5 Rb3 Rc5 Ra3 Rcc1 Rb3 Rf1 Ra3 Rf3 Rd3+ Ke2 Qhh7 Ndf5 Nd6 Nf1 Rd5 Rh3 Rd3 N1g3 Bf6 Nd4 Qhh6 Ncd5 Nf7 Nc7 Ra3 Kd2 Qhh5 Qab5 Rb3 Qa4 Rd3+
1br1k3/Bb1R2nq/1r2brq1/KQ1N2Q1/1BR4N/4P1pq/1Q1b3P/3N1b2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 f5 Qd2 h5 Qd1 f3 Nb1 f4 Bh3 Nc6 Kd2 Nce7 Ke1 Nf5 gxf5 Qe7 Bg4 hxg4 Kf2 Qf6 Ke1 Qd8 Kd2 d5 b4 a5 c4 g5 e3 d3 Kc3 g3 f6 f2 c5 f1Q c6 f3 c7 g2 b6 a4 b5 g4 b7 a3 b8B f2 b6 d4+ Kb3 d2 b7 d3 Qe1 d1B+ Kc3 a2 Qd2 Bd6 Nh3 g1Q Kc4 Bf3 Kb5 Qe7 Ba7 Qh7 b8Q Bb7 Qb2 d2+ Ka5 d1R Bd2 Nh6 Bb4 Nf5 Nf4 Rf8 Nc3 Qfh3 Nfd5 f1B Rc1 a1B Rc2 Rd3 Nd1 Rb3 Rc4 Qgg2 Rg1 Ng7 Rh1 g3 Rg1 Qge4 f7+ Kd7 Rg2 Qeg6 Re2 Be5 Rd2 Bc3 Rd3 Bd2 Rdd4 Rg8 f8N+ Ke8 Nf4 Rh8 Rd7 Rg8 Nd5 Rh8 Ne6 Rf8 Nd4 Rf5 Nf3 Rf6 Qc2 Be5 Nh4 Bf4 Qb2 Be5 Bc3 Rbb6 Bb4 Bc6 Qb7 Rb8 Qa6 B8b7 Qb5 Rc8 Qc5 Ba4 Qc6 Bb3 Qb5 Rd8 c8Q Bb8 Qcc5 Rc8 N5c3 Ba2 Qg5 Bb3 Rc5 Bg8 Rc4 Be6 Nd5
1qn3Nb/2p1q3/2N1nn1r/P5Rk/2nQ1r1r/6B1/KPBB3R/R3q1nQ b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 d5 h5 dxc4 h6 gxh6 Nf3 h5 Ng1 h4 Qa4+ b5 Qc2 b4 Qd1 b3 axb3 a5 Nh3 a4 Ng1 a3 Kf2 Bd7 Ke1 Ba4 bxa4 Bh6 Rh3 Bg7 Rh1 Bf8 e4 h5 d4 f5 Kd2 Kf7 Kc2 Kg6 g4 a2 e5 f3 e6 f2 d5 h3 d6 h2 d7 c3 Kb3 f4 g5 f3 e7 h4 e8R h3 a5 c2 Bd2 c1N+ Kc2 Ne7 Qe1 Rh6 Bf4 Bg7 Bg3 Ne2 Kb3 Bh8 Qb4 Kh5 g6 Nc8 g7 Qe7 d8B Nd7 g8Q Nf6 Bg2 f1Q Qf4 f2 Qd4 Qe1 Nc3 f1N Nf3 Ng1 Qh7 Ne3 Rg8 Nc4 Ne5 Ra6 Be4 Rd6 Rd1 a1N+ Ka2 Nb3 Ra1 Nc5 Nd5 Ne6 Nc6 Qb4 Bc2 Qb8 Ncb4 Rb6 Nc6 Rb3 Qhe4 Rf3 Qe1 Rf4 Rg7 Qd6 Nde7 Qc5 Ng8 Qe7 Qf1 Ne2 Rg1 h1Q Rg2 Ng1 Rh2 Qe4 Qg2 Qe5 Qh1 Qe1 Re2 h2 Rg6 Qg7 Be7 Qf8 Bb4 Qd8 Bd2 Qe7 Qg2 h1R Rg4 Rh2 Qh1 Rh3 Rh2 Rh4 Rg5+
2rn3q/2Bk1b2/r2bQ1PQ/2BK1b1Q/q1R2bN1/1bp3N1/1PB5/r2b3R b - - 0 1 legal: proof: f4 d5 h4 e5 c4 exf4 a4 dxc4 h5 a5 h6 b5 axb5 Na6 bxa6 gxh6 Qc2 h5 Qd1 h4 Kf2 f5 Kf3 c5 g4 h5 d4 a4 e4 c3 g5 c4 a7 h3 d5 c2 g6 c3 d6 h2 e5 h4 e6 a3 e7 h3 Qd4 a2 Qc4 Kd7 Nd2 Qe8 Qe2 Nh6 Qd3 Nf7 Ne4 Nd8 Be3 c1B Rb1 a1R Kf2 f3 Ng3 f4 Qd1 Ra6 Bd3 Bd2 Kf1 f2 Ke2 f1B+ Kf3 Be2+ Ke4 f3 Bc2 f2 Ra1 f1B Bc5 Bf4 Kd5 Bh5 Qd2 Bd1 Ra4 Rg8 Nf3 Bc4+ Kd4 Ba2 Rc4 Bb3 Kd5 Rh8 Qe2 Rg8 Qe5 Ra1 Qh5 Ra6 Re1 h1B Rf1 Bg2 Rh1 h2 Qh6 Bh3 Qh5 Bf5 Qh6 Rb8 a8Q Ra1 Qa5 Ra8 Ng5 Ra6 N5e4 Rh8 Nf2 Rg8 Ng4 Be6+ Kd4 Bf7 Qb5+ Ke6 Qa5 Qa4 e8Q+ Be7 d7 Rh8 Rf1 h1Q Qg8 Qh3 Rh1 Bed6 Qb5 Bb7 Qa5 Be4 Qb5 Bf5 Qa5 Nb7 d8B Kd7 Bdb6 Nd8 Bc7 Ne6+ Kd5 Qh2 Qgh7 Rc8 Qb6 Qh4 Qh5 Qf6 Q7h6 Qh8 Ba3 Bf8 Qe3 B8d6 Bc5 Nd8+ Qe6+
4NBq1/2q1QR2/2q1bPb1/b1rr2k1/B2B1Rb1/2P2N1R/1b3pQb/3K2n1 b - - 0 1 legal: proof: e4 c5 h4 b5 a4 g5 axb5 gxh4 d4 cxd4 Be3 f5 Qc1 f4 Bd2 Na6 Qd1 Nb4 Bc1 Nd5 Kd2 Ne3 f3 Nf5 exf5 Qa5+ Kd3 Qc3+ Ke2 Qxf3+ Kd2 Qg3 Ke2 Qe1+ Kd3 Qf2 b4 Kf7 g4 Kf6 b6 d5 b5 h5 b7 a5 b8Q e5 b6 a4 b7 f3 Be2 a3 Kd2 e4 Ra2 h3 Bb2 e3+ Kc1 h4 Ba6 h2 Ra1 h3 Bb5 a2 Qg3 e2 b8B e1B Bf1 Ba5 c3 d3 Na3 d2+ Kc2 d4 Bc7 d3+ Kb3 Be6+ Nc4 Rh5 Qf4 Ne7 Qe4 Ng6 Rb1 a1B Qf4 Rc8 Qe5+ Kg5 Qc2 d1B Ba3 d2 Bb6 Qg3 Bd4 Bb2 Be2 Bg7 Bf8 Nh4 Ra1 Bf6 Ra4 Rc5 Qd6 Be5 f6 Rd5 Qe7 f2 Nd6 Qg2 Ne8 Nf3 Bb5 Be2 Rc4 d1B Ba4 Bd3 Rc7 Bdf5 Ra7 Be2 Qe4 Bg6 Kc2 Bb8 Rd7 Qg3 Rb7 Qc7 Ra7 Ba6 Kd1 Bac8 Ne2 Ng1 Qg2 Rc5 Rb7 Kh4 Ra7 Rhd5 g5 Bg4 Rb7 Bce6 Ra7 Bd3 g6 Kg5 g7 Bg6 g8R Nf3 Rf1 h1Q Rh8 h2 Rh3 Qg1 Re1 h1Q Rb7 Qc8 Rb4 Bh2 Rb7 Qc7 Ra7 Qf1 Ng1 Qb5 Re4 Qbc6 Qf1 Qg2 Rf4 Qg3 Qg2 Qh4 Rb7 Qh8 Qd8 Qg8 Qd6 Qb8 Rf7 Qbc7 Qe7 Q6d6 Ne2 Qa6 Nc1 Qb5 Nd3 Qbc6 Ne1 Ng1+ Nf3+
2b4b/1bpP1bBR/1r2b1R1/Bq5Q/Nb2nn1K/P5N1/1N2q2Q/1knQ4 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 Nf3 h5 Ne5 b5 Bg2 f5 Bh3 Ra6 Nf3 Rf6 Ng1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qg5 Bg4 hxg4 Qb3 Qe7 Qd1 Qd8 Kf2 Kd7 h4 Kd6 d4 g5 e4 b3 f6 g3+ Kf1 g4 h5 g2+ Kf2 b2 a3 b4 h6 b3 f7 g3+ Ke1 f2+ Ke2 f1Q+ Kd2 f3 Ke3 f2 Kf4 Nc6 h7 Qb5 Nh3 g1N Nc3 f1B Ng5 b1B Qg4 b2 Na4 g2 Kg3 Na5 Bd2 Bc4 Qh5 Nf6 Kh4 Nb3 Ba5 Qe7 Rh3 Rg8 h8Q Ne2 Q8h6 Bbd3 Rg1 b1B Qh8 Bg7 f8B Ba2 Q8h6 Bh8 Bg7 Nf4 e5+ Kd7 e6+ Kd6 Rhh1 Be4 Rh3 Qee8 e7 Nc1 Rhh1 Bcb3 Rh2 Qe2 Rh3 Q8b5 e8N+ Kd7 d6 Kc6 d7 Kd5 d8Q+ Kc4 Qd6 Beb7 d5 Ne4 Qd7 Rf8 d6 Rf6 Qdg4 Rg6 d7 Rb6 Rhh1 Kd3 Nd6 Kc2 Nc4 Kb1 Ncb2 Be6 Rh2 Nc5 Ne4 Bab3 Ng3 Ne4 Qf3 Ba2 Qf1 Bf7 Qd1 Bae6 Rgh1 g1B Rg2 Bc5 Rgg1 Bf5 Qhd6 Bb4 Q6d2 Qe1 Qh2 Qee2 Qh6 B5g6 Qg2 Qc6 Nf1 Ng3 Kg5 Be8 Rh5 Bef7 Kh4 Bh7 Qh2 Ne4 Rg2 Be6 Rg6 Bhg8 Ng3 Bgf7 Qg5 Qd5 Rh7 Qdb5 Qh5
3Q3n/1q1N1RK1/2nr1p2/kN1P3q/q1r3n1/b4R1B/R1NqP2B/3Q2nn b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Qa4 g3 Qd1 Bg4 hxg4 Bb4 Rh4 Ba3 Rh1 Bf8 b4 Kd7 d4 c5 Kd2 Kc7 Ke3 Kb6 Kf4 h5 Kf5 a5 g5 c3 d5 f6 Kg6 c4 Qd2 a4 Qb2 c2 Ra2 c3 Ra3 h4 Nh3 g1Q Bf4 c1N Nd2 c2 Nb3 g2 Qa1 Qe7 Bh2 Ra6 Nf4 h3 Ra2 a3 Nd4 Nc6 Nfe6 Rh4 Nc7 Nd3 Qd1 c1Q Nc2 Qe5 Kf7 Rc4 g6 Nge7 g7 Ng6 g8R Qh5 Rg7 Qd2 Kg8 Qc5 Rf7 g1N Bg2 Bd6 Kg7 Nde5 Bf1 Nh8 Bg2 Ngf3 Rf1 Ng1 Rf3 Ng4 Bf1 Qce3 Bg2 Qe7 Bf1 Ka7 b6+ Kb7 b5 Bc5 Bf4 h2 Bh3 h1N Bh2 Ra8 Qf1 Rd8 Qb1 Rd6 Qd1 Kb8 b7 Ka7 b8N Kb6 Nd7+ Ka5 b6 Bb4 Ra1 a2 b7 Bc5 b8Q Ba3 Nb6 Qd7 Nb5 Qe7 Qd8 Qb7 Rb1 a1Q Rb2 Qb1 Ra2 Qb3 Bg3 Qbb4 Bh2 Qa4 Nd7+
q3n3/1P6/BNr3B1/b2QPq2/2qQ1p1k/1qBRb3/1qNbr3/R2K1Rb1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Kf2 cxd6 Ke1 d5 Bd2 d4 Be3 Ne7 Bc1 Ng8 h3 g5 Qd3 f4 Qd1 Ba6 Ra2 Bd3 Ra1 Bf5 gxf5 Nc6 h4 g4 Be3 Ne5 Bd2 Nf7 Bc1 Ng5 hxg5 Bg7 Ra2 Bh6 Ra1 Bf8 b4 Kf7 e4 h5 c4 a5 f6 Kg6 e5 d5 c5 a3 c6 a4 c7 h4 c8B Kh5 b5 h3 b6 a2 g6 g3 b7 a3 g7 d3 f7 h2 Bd2 g2 Bh3 d4 Ne2 g1B Be6 Rh6 Bc8 Bb4 f8Q Nf6 g8R Ba5 Qa4 f2+ Kd1 Kh4 Bf5 Ne8 Rg7 Rc6 Be3 d2 Bc2 Raa6 Bh3 Qa8 Nc1 Ra7 Ke2 d3+ Kf3 d1Q+ Ne2 d2 Rc7 Qc1 Nbc3 d1Q Bf1 Qb2 Bg6 Qdb3 Bd4 Raa6 Rd7 Rab6 Rd1 a1B Qg8 a2 Qd5 Rb5 Qb4 Rbc5 Rd3 Rc4 Na4 Rc2 Nb6 Rd2 Ng3 Re2 Qbc4 Bd2 Bc3 Be3 Qcd4 Bd2 Bh3 Be3 Nf1 Bd2 Ne3 f1Q+ Ke4 Qfb1 Kf3 Q1c1 Bb4 Qcc4 Nc2 Bge3 Rf1 h1Q+ Bg2 Qh2 Bc3 Qh3+ Ke4 Qf5+ Kf3 Qc1 Rc7 Bb2 Bh3 a1B Rc8 Ba3 Bg4 Bc5 B4h5 Qa7 Ra8 Qb8 Ra3 Qa8 Bg4 Bb2 Ra1 Bba3 Bh3 Bab4 Bg2 Ba5 Bh3 Rh2 Bg2 Qca3 Ke2 Qab2 Kd1 Bg1 Q4e4 Bce3 Qed4 Qg5 Bh3 Re2 Be6 Qf5 Bd7 Re6 Bb5 Rc6 Ba6
1qN4R/3b2NQ/5b1K/B1k2r2/1Qbq4/PP1B3B/1p4Rb/n1rqrR1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Bh6 b5 Bd2 b3 Ke2 b2 Rh3 b4 Rh2 b3 Bc1 Na6 Ke1 Nc5 Nd2 b1B Rh3 b2 Rh1 Nb3 cxb3 Ra5 Ngf3 Ra6 Ng1 Ra8 Ke2 h5 Kf3 e5 g4 Ke7 f6+ Kd6 a3 d3 g5 e4+ Kf4 e3 f7 h3 g6 e2 g7 e1B f3 h2 Nc4+ Kc5 Ne3 d5 Bg2 h4 Bd2 h3 Ba5 d4 Bc7 d2 Nf5 d3 Ne2 Bh4 Ned4 Rh5 Nd6 Bf6 N4f5 Bd7 Nc8 Ne7 g8B Nc6 Ba5 Nb4 Rg1 h1R Bh7 h2 Bh3 Nc2 Rg2 Re1 Ng7 h1R Be4 B8e7 f8R Rf5+ Kg4 Be5 f4 B7f6 Rh8 Bd6 Qe2 d1Q Qf3 d2 Bd3 Qb6 Qe2 Qb8 Qf3 Rd5+ f5 Bh2 Kh5 Ra7 Qe2 Rc7 Kh6 Rc6 Qe5 Qg4 Qe2 Qd4 Qe4 d1Q Qh4 Bd8+ f6 Rf5 Qh5 Rc7 f7 Bf6 Ra2 Na1 f8Q+ Kd5 Qb4 Rc1 Qg6 Bc2 Qh7 Kc6 Bf1 Bd3 Be2 Bc4 Bd3 Nc2 Ra1 Kd5 Qb7+ Kc5 Qb4+ Kc6 Qf8 Reg1 Qb4 Qf1 Rd2 Rb1 Qb7+ Kc5 Qg8 Rd1 Rc1 Na1 Qh7 Qe1 Rg2 Qe2 Rc2 Rc1 Rd2 Qe1 Rdf2 Qd1 Rf4 Re1 Qb4+ Kd5 Rf1 Kc6 Qa4+ Kc5 Qb4+
4q2q/3qbP1p/3r3b/R1Pn1BqQ/1NQ3n1/1B6/NR1nb1K1/1k1b1RB1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 h4 fxe4 b4 g5 Bc4 gxh4 Bf1 a5 Be3 a4 Bc1 Ra5 bxa5 Bh6 Be3 Bg7 Bc1 Bf8 c4 Kf7 g4 Kg6 f4 e5 Kf2 d5 a6 e3+ Kg2 e2 b6 e1B c5 e4 a7 a3 a8Q d3 b7 d4 g5 Kf5 g6 e3 g7 Ke4 f5 h3+ Kh2 e2 f6 d2 Ra2 Kd3 Ra1 a2 Bb2 Na6 b8R Qe8 Rb5 Be7 Bc3 Bg4 Qd8 Nb4 Ra5 Nd5 Qc7 Nh6 Qb3 d1B g8B Bd2 Qb4 Kc2 Nf3 e1N Ne5 d3 Nc6 Bge2 Qe5 Nf3+ Kg3 h2 Qh5 Kc1 Kg2 Ng4 Bd4 Bh6 Bg1 d2 Nc3+ Kc2 Rb1 a1Q Na2 Qe5 Be6 Qg5 f7 Rg8 Qf4 Rg6 Rc1+ Kb2 Bc8 Rd6 Rc2+ Kb1 Qc4 Qh8 Ncb4 Qe8 Bf2 Qh8 Rg1 Qe8 Bf5 h1Q+ Kg3 Qhh4+ Kg2 Qgg8 Rh1 Qhg5 Bg1 Qh8 Qf4 Ba6 Bc4 Bb5 Bb3 Bbe2 Rc4+ Bc2 Qd4 d1Q Rc3 Qd3 Qc4 Bcd1 Rc2 Qdd2 Bd4 Qd3 Rf1 Nd2 Be3 Qdd4 Bg1 Qd3 Qf4 Qdb5 Qc4 Qbd7 Rb2+
rN1r1r2/6n1/1nR2r2/3PB1bN/k1b2Q1n/1PBp2BQ/1r5n/1bR2QK1 b - - 0 1 illegal: No possible last move, all moves rejected
1N1br1bn/1N1P2b1/Pr1r2Q1/rB2R1n1/1B5Q/2K3RQ/1Bp5/bk2n1n1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 g3 g5 Rh3 g4 Rh1 Qg5 hxg5 fxg3 e4 Kd7 a4 Kd6 d4 b5 Kd2 h5 a5 c5 g6 f5 g7 h4 Bb2 b3 Kd3 c4+ Kd2 h3 Qe2 b4 Ra3 c3+ Kd3 g2 Nd2 h2 Bc1 c2 Bb2 g3 Nh3 g1B Qf2 g2 Ng5 f4 Qg3 Nf6 g8Q Nc6 Nb1 Ne5+ Kd2 f3 Qe1 f2 Be2 f1N+ Kc1 Nh7 Nh3 Nd2 Bd3 Ndf3 Qg6+ Be6 Bb5 Bg7 Qh4 Nhg5 Nf2 Rhe8 Ng4 Nef7 Nf6 Ne1 Kd2 Nh8 Nc3 Bg8 Na4 Bf2 Rf1 h1R Nc5 g1B a6 Rad8 Qh3 Bh4 Rf5 Bh2 Qh7 Be5 Nfd7 Bef6 Nb8 Rd7 Bc1 b2 Rg3 b1R Bb2 b3 Re5 Rf1 Kc3 Rf5 Ba1 b2 Nb7+ Kc7 d6+ Kb6 d5 Bd8 Rg2 Bf2 Q7h4 Bd4+ Kb3 Bc3 Rg3 Bd4 Re7 Bc3 e5 Bd4 e6 Bdf6 Nc5 Ka5 Kc4 Re5 Kd4 Kb4 Nb7 Nef3+ Kd3+ Ka3 Kc4 Ka2 Kc3 Rf8 Re8 Ng1 e7 Rc1 Kd4 b1N Bb2 Nd2 Kc3 Kb1 Qh6 Bc7 Q6h4 Rd8 d7 Ndf3 d6 Ne1 Ba4 Rd1 Bb5 Rc8 d8B Rf7 d7 Rd6 Rf8 Rb6 e8Q Ree6+ Kb3 Red6 Be7 Bd8 Kb4 Be5 Kb3 Rf2+ Qf7 Re2 Re8 Rc5 Bf8 Rcd5 Qg6 Bd4 Re5 Bc3 Bc1 Ba1 Bb2 Re4 Kc3 Re2 Bd3 Ra5 Bb5 Rd5 Bb4 Rdd6 Qf6 Re4 Rd5 Ree6 Re5 Re8 Qg6
q2b2q1/1k2bn1q/q4n1R/q2Qp2R/1NB1bNP1/6BP/Q3QB1n/2Kb4 b - - 0 1 legal: proof: e4 c5 b4 f5 d4 cxd4 b5 fxe4 h3 g5 b6 axb6 Kd2 b5 Ke1 b4 Bc4 h5 Bd3 b5 Qd2 g4 Qd1 h4 Bf1 Ra6 Bd3 Rg6 Be2 g3 Bf1 Rg4 hxg4 h3 Bh6 h2 Bc1 Rh3 gxh3 Qb6 Qd2 Qa5 Qd1 Qd8 Kd2 e5 f4 d5 c4 Kd7 a4 Kc7 a5 e3+ Kc2 g2 a6 e2 f5 e1Q c5 b3+ Kb2 d3 f6 b4 c6 d2 a7 d4 a8Q d3 f7 Bf5 Qa3 Nh6 Qa6 Be7 f8B Be4 Qa3 Nd7 Ra2 Nf7 Bg7 Qg8 Bf8 Nf6 Qe2 d1Q Nc3 d2 Nd5+ Kb8 c7+ Kb7 Bh6 Bd8 Bf4 Be7 Qc4 Qde2 Bg3 d1B+ Bd2 Qd3 Ne2 g1B Kc1 Bb6 Nef4 Qde2 Rg1 h1Q Be3 Qd3 Qc5 Qa6 Bef2 Qg2 Qc2 Ba5 Bc4 b2+ Kb1 Qh1 Rf1 Bb6 Qe3 Qc3 Ra1 Qca3 Qe2 Q3a5 Ra3 Qf3 Ka2 b1N Kb2 b3 Nb4 Qg2 Kc1 Nd2 Qa2 Nf3 Ra4 Nh2 c8Q+ Ka7 Qf5 Kb7 Qe6 Bbd8 Qd5+ Kb8 Ra3 b2+ Kd2 b1Q Ra4 Qd3+ Kc1 Qc7 Ra5 Qgf3 Rc5 Qca5 Rc6 Kb7 Qc5 Ne8 Rh6 Nf6 Rh5 Bc6 Qd6 Qdh7 Qd5 Qfa3+ Qeb2 Q3a4 Qe2 Qa8 Rh6 Q5a6 Rh5 Q4a5 Nfd3 Ne8 Bd4 Ned6 Qde4 Ne8 Rf6 Bc2 Rfh6 Bd1 Nf4 Nf6 Bdf2 Bd5 Q4d3 Be4 Qd5+
1BN4N/b1QQR2r/q2qr2n/n7/q2p2n1/b2P1rBK/1R1k1Pp1/1Q5R b - - 0 1 legal: proof: b4 c5 a4 f5 e4 b5 axb5 fxe4 Bc4 cxb4 Bd3 Qb6 Bf1 Qd8 g4 h5 Ba3 Bb7 Bc1 Bd5 Be2 Be6 Bf3 Bf5 gxf5 Nh6 Be2 Ng8 Bg4 hxg4 Kf1 Kf7 Kg2 Kf6 h4 Ke5 c4 Kd4 d3 g5 f6 d5 h5 e5 b6 a5 c5 b3 f7 a4 c6 g3 c7 b2 c8Q a3 h6 e3 b7 e4 h7 g4 Ra2 e2 Qb3 e1B Bg5 e3 Rh6 e2 Re6 Ba5 Bh6 e1R Ra6 Bb6 Qd7 Nc6 b8R Na5 Qd6 Re6 Qc7 Ba7 Nd2 b1Q Rb7 Qc2 Nc4 Qd6 Rb2 a2 Nb6 a1Q Bf4 Nh6 Nh3 Qa4 Qb4+ Qc4 Ng5 Rd8 Qb5 Kc3 Nc8 d4 Qbd7 Be7 Rab6 Rdf8 Rb1 Kc2 Rh1 Kc3 Be5 Kd2 Rbb1 Qca6 R1b3 Rhg8 h8B Rg7 R3b6 Rh7 Rb4 Rg8 f8Q Rgg7 Qf6 Rf7 Qf5 Rff6 Nf7 Bf8 Qh5 Rf3 Qh2 Be7 Qg1 Bf8 Qb1 Be7 Kg1 g2 Kh2 g3+ Kh3 Bf8 Bhf6 Be7 Nh8 g1N+ Kh4 g2 Bg3 Qe5 Rb3 Ba3 R3b4 Qed6 Bfe5 Rff7 R4b6 Nf3+ Kh3 Nh2 Rb4 N2g4 R4b6 Rf3 Rb2+ Qc2 Qcc6 Qc5 Bb8 Qd5 Qcc7 Qdd6 R2b5 Qa4 Re5 Ref6 Re7 Re6 Rb2+
1B2n1B1/3k1nR1/1Prb1Q2/RN3R1K/1Np5/P1p1n2b/Q3r1q1/1N2b1qq b - - 0 1 legal: proof: c4 b5 e4 bxc4 b4 h5 g4 a5 gxh5 d5 d3 f5 exf5 a4 Qe2 a3 Qb2 axb2 Na3 d4 Be3 Kf7 Rc1 Ke8 Rc3 dxc3 Ke2 b1N Kf3 c5 Kg4 g5 h4 e5 f4 e4 d4 c2 b5 c1Q b6 c3 d5 Be7 h6 Nd7 h5 Bd6 f6 Ra4 h7 Nd2 f5 Rb4 f7+ Ke7 f8R Be5 h6 Rb3 f6+ Kd6 f7 Qf6 Bf4 e3 Ne2 Ke7 d6+ Ke6 Kh5 g4 Nb1 g3 a3 g2 Rg1 Nc4 Re8+ Qe7 f8R Rb2 Rf5 Qd1 Ref8 Qg7 R8f7 Qg3 Rg7 Qc1 Rh1 g1Q Rh4 Q3g2 Nd4+ Kd5 Rh3 e2 Nb5 Kc6 Rd3 e1B Rd5 Ne3 Bc4 Re2 Bg3 Nf8 d7 Bd6 Bf4 Ng6 Bb3 N8e7 d8N+ Kd7 Nc6 Ne5 Nb4 Nf7 Ba2 Rd8 h8Q Ng8 h7 Re8 Rde5 Re6 Bd5 c4 Bh2 Ne7 Qf8 Q1h1 h8Q Ng8 Qh6 Rg6 Qf4 Rf6 Qe4 Re6 Qc2 Qhg1 Qa2 Qd1 Bg3 Nf6+ Kh4 Ne8 Kh5 Bc5 Qh8 Rc6 Qh6 Qc1 Qf6 Bd6 Rgg5 Nh8 Bg8 Nf7 Rg7 Qd1 Nc7 Qc1 Ra5 Qd1 Nb5 Qdd5 Qg6 Q2h1+ Bh2 Qdg2 Qf6 Be7 Rg4 Kd8 Rf2 Be6 Rg5 Bh3 Bb8 Kd7 Rg7 Bd6 Rf5
2bb4/1qP3Bp/2Q1pQ2/rPK1R1r1/1B2q1N1/1R1k3q/n1N1Rr2/Q4bn1 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 f5 exf5 c5 Bc4 cxd4 a4 b5 axb5 a4 Bb3 axb3 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 f4 d5+ Kc5 d3 c4 d2 f6 d4 b6 b2 b7 h3 f7 d3 g5 h2 f5 Ra3 g6 Nf6 g7 Nh5 g8Q Qd7 f6 Ng3 Ra2 Nc6 b8R Qb7 Nh3 Ne2 Re1 h1Q Qg2+ Ke3 Qg6 Rg8 Nf2 Qh3 Qa4 Bh6 f8Q Bg5 f7 e6 Qf6 Bh4 Qd6 Rg4 Qa5 Rg5+ Qd5 Ra4 Na3 b1Q Bb2 d1B f8B d2 Bc3 Qd3 Bg7 Qe4 Qa6 Bb3 Qde5 d1R Ng4+ Kd3 Nc2 Ng1 Re2 Na5 Qc6 Rf1 Ra3 Ba2 Rb3 Rf2 b5 Bd7 Rf8 Bc8 Qe7 Bb1 Rf5 Ra3 Q7f6 Ra1 Qb6 Nc6 Qa6 Nb4 Qc6 Na2 Bb4+ Nc3 Qb8 Ra5 Qa7 Bg3 Qaa6 Bc7 Re5 Bd8 Qab6 Ra7 Qa6 Ra8 Qa1 Ra5 Kd6 Ba2 c5 Bb1 Qd7 Ba2 c6 Bb1 c7 Ba2 Rb1 Bc4 Qc6 Na2 Kc5 Qf5 Nh2 Bd5 Qa6 Bg2 Ng4 Bf1 Qc6 Qe4 Rb3+
1BQb1Qq1/R1nR2k1/1r3nB1/b1N1b3/6p1/K3Pnp1/NPr2Qb1/3N2b1 b - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 h5 Na3 hxg4 Nf3 e5 Ng1 e4 Nb1 e3 dxe3 f5 Qd5 f4 Kd1 f3 Kc2 fxe2 Qd4 Rh4 Qd1 Rh8 f4 Kf7 h4 e1B b6 c5 f5 a5 f6 g5 b7 g3 h5 a4 h6 g4 h7 c3 Qf3 c4 Qf4 a3 Qd6 a2 Qa3 Bd6 Nd2 Ra6 Rh3 Be5 Rh2 Bf2 Nb1 Rb6 Nh3 Na6 b8N Nc7 Bd2 Bb7 Na6 Bg1 Bd3 Bg2 Nc5 Kf8 f7 Nf6 Qb3 Kg7 Bg6 Qf8 Nf2 Qg8 Kc1 c2 Ba5 Kf8 Nc3 Kg7 Kd2 c1B+ Kc2 Bd2 Nfd1 Be1 Qb5 Bd2 Qd7 Be1 Qf5 Bd2 Nb1 c3 Qf2 Be1 Bb4 Bd2 Kb3 c2 Rh5 c1B Nbc3 Be1 Ka3 Bcd2 Rc1 a1N Na2 Nb3 Ra1 Nd4 Rf5 Bf4 Rd5 Nf3 Rd7 Bc3 Ba5 Bce5 Bb4 Bg5 Bc3 Bef4 Be5 Ba5 Bd6 Nce8 Bb8 Be5 Ra7 Nc7 Rc1 Bh3 Rc4 Bg2 Rd4 Qc8 Rd7 Rd8 Re7 Rd2 Rd7 Qg8 h8Q+ Kf8 Qh1 Kg7 Qh5 Bh4 Qf5 Rc2 Qe6 Nfe8 Qc6 Bd8 Qb7 Nf6 Qa6 Ng5 Qc8 Nf3 f8Q+
2n1B1Qr/1R2P3/2p2nNN/Q7/Bb6/kb1n3K/1pRqPR2/2nNnrr1 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 f5 cxd5 fxg4 b4 axb4 Bb2 h5 Bd4 h4 Bf2 Ra3 Bg3 hxg3 Bg2 Ra5 Bf1 Ra8 h4 Ke7 d4 b5 a4 g5 e6 Kd6 a5 b3 h5 g2 Kf2 b4 Kg3 b2 e7 b3 a6 Nd7 h6 Bg7 a7 Nb6 h7 Nf6 Nh3 g1R+ Bg2 Be6 Nf4 Nc8 Nc3 b1N Rh2 b2 Ng6 Nd2 Qa4 Nb3 Qa5 Nc1 Nd1 Rf8 h8N Bh6 Kf2 g3+ Kf3 Rb8 a8B Bf7 Bh1 g2 Kg3 g4 Bc6 Bd2 Be8 Bb4 Ra3 Qd7 Rb3 Ra8 Kh4 g3 Rc3 Qd8 Kh3 Rb8 Rc2 Bg8 Ne5 c6 Ng4 Bf7 Ng6 Rh8+ Nh6 Rf1 Kh4 g1N Rf2 Nh3 Be4 g2 Bd3 g1N Bb5 Nf4 Ba4 Nfd3 Kg3 Rb6 Kg2 Nf3 Kh3 Kc7 d6+ Kb7 d5 Nfe1 d7 Ra6 d6 Bb3 Qd5 Kb6 Qc4 Ka5 Qg8 Qb6 d8R Qd4 Rd7 Qe3+ Kh4 Qd2 Rb7 Ra8 d7 Rb8 Rc7 Rb5 d8Q Rg5 Kh3 Rgg1 Bf7 Bc3 Qd5+ Kb4 Qa5+ Ka3 Rb7 Bb4 Be8
1n2n3/rbn1p1rN/3N2n1/1B1B3R/QPR2B2/K1pQ4/3N1P1b/2k1qn1b b - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 f5 h4 g5 e4 gxh4 b3 fxe4 Ne2 a5 Ng1 a4 Ba3 axb3 Bb2 Ra2 Bc1 Ra8 d4 Kf7 Kd2 Kf6 Kc3 Kf5 Kb2 c5 g3 h5 d6 e3 d7 Ke4 g4 c4 d5 e2 d6 e1N g5 h3 g6 h4 g7 h2 Ra4 c3+ Ka3 b2 Bh6 h3 Bd2 Ng2 Be3 Nf4 Qd2 Rh7 Ra5 Bb7 Bc4 Nf6 g8B Ra7 Bb3 Bh6 Qe2 Ne8 Nf3 Rg7 Bbc4 Ng6 Qd1 Bf4 Bb5 Qc8 d8N Qe6 Re1 h1N d7 h2 Qa4 Ng3 Nf7 h1B d8Q Nf1 Qd2 Bh2 Bf4+ Ne3 Rg1 Nd5 Rg4 Ndc7 Qd6 Qe5 Qa6 Qe6 N3g5+ Kd4 Nd2 Qe1 Nd6 b1N+ Kb3 Bg3 Nh7 Bh2 N2e4 Nd2+ Ka3 Nf1 Bd5 Ba8 Nd2 Bb7 N6c4 Kd3 Qd6 Qe3 Qd7 Ke2 Nd6+ Ke1 Qf5 Qe6 Qd3 Qe3 Kb3 Kd1 Ka3+ Kc1 Rh4 Qe1 Rh5 Nd7 Ra6 Nb8 Rc6 Qe5 Rc5 Qe1 Rc4
6bQ/4R1Bb/b1p3Qb/Qn2BR1q/nR6/1N2r2N/2PPpk1K/r2q3b b - - 0 1 legal: proof: f4 b5 e4 b4 g4 d6 e5 dxe5 a3 exf4 axb4 f3 b5 Bf5 Ra2 Bd7 Ra1 Bc8 b4 h5 gxh5 a6 b6 Nd7 b5 Rh7 b7 Rh8 b6 Nb8 Bb5+ axb5 Kf2 Kd7 Kg3 Kc6 h4 Kd5 h6 Ke4 h5 g5 h7 e5 h6 f5 Ra7 f2 Ra3 f1B Rh2 g4 Ra1 c6 Nf3 b4 Rh3 f4+ Kh2 g3+ Kh1 b3 Ne1 f3 Ng2 b2 Nf4 f2 Qg4 g2+ Kh2 Bd3 Qd7 f1B Qg4 Nd7 b8R Nc5 b7 Na4 Kg1 Qa5 Qg5 Ne7 Na3 b1B Ra2 Nf5 Qg3 Nd4 Bb2 Nb5 Kh2 Bfe2 Qg4 Bf3 Rh5 Ra6 Ra1 Ba2 Rf5 Bg8 Nc4 Ra7 Qg6 g1Q+ Kh3 Qf1+ Kh2 Bh1 Re1+ Kf3 Re2 e4 Bg7 e3 Be5 Qb4 Na5 Qd1 Nb3 Qa5 Re1 Kf2 Bg7 Bgd5 Be5 Rg8 h8Q Bf7 h7 Bh6 Bg7 Re8 Qg8 Re4 Qd8 Bg8 h8Q Re8 Ra8 Bde4 b8B Ba6 Bbe5 Re6 Qd5 e2 Re8 Bd3 Re7 Ra8 Bd6 Re3 Bde5 Bc4 Rg1 Bh7 Rg4 Ra7 Qc5 Bcg8 Rh4 Qb6 Qb4 Qc5 Qa5 Qd5 Rg4 Qf3 Rh4 Qh5 Qb4 Nb6 Qa4 Bc8 Ng2+ Rf3 Qb4 Ra1 Qa3 Ba6 Qa5 Qg5 Rd4 Na4 Nf4 Re3 Rb4 Qh5+ Nh3+
QQ6/1b3nBq/b1Q4r/3r2Nb/kn2Rp1P/1pKn1qBP/1R4n1/5NB1 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 h5 g3 a5 Bh3 axb4 Be6 Be7 Bg4 Bh4 gxh4 hxg4 a4 Kd7 d4 b5 Kd2 c5 e4 f5 h3 g5 a5 f3 a6 f2 a7 f1B e5 f4 d6 Kc6 e6 c4 d7 g3 e7 c3+ Kc2 g4 e8Q g2 Qe5 g3 Ra5 Qe7 d8B Na6 Rh2 Bb7 Qdh5 b3+ Kd1 b2 Kc2 b4 Qg4 b3+ Kd1 c2+ Kd2 Nh6 Ra4 Nf7 d5+ Kb5 Qc8 Nb4 Bb6 Rh6 Nf3 g1N Bf2 g2 Ng5 Nf3+ Kc3 g1Q Bce3 c1N Qeb8 Ncd3 d6 Nfe1 d7 Qg4 d8B Ng2 Nd2 b1B Bg3 Qf3 Bg1 Bc2 Bdb6 Bd1 Bbd4 Qee4 Bg7 Qh7 Qbc7 Rb8 a8Q Bfe2 Qf8 Rd8 Nf1 Rd5 Qfb8 Na6 Re4 Nab4 Ba7 Ka4 Qd6 Nf2+ Be3+ Bea6 Qg6 Nd3 Bg1 Qf2 Qb6 Bh5 Q6d6 Qf3 Qb6 Nge1 Rb2 Ng2 Qc6+
1K1BbB1n/1br1b1BN/2pq2Q1/p1k1Q1N1/6P1/3r1P2/Q2qR3/1nn1b2R b - - 0 1 legal: proof: c4 d5 d4 b5 a4 g5 h4 gxh4 axb5 f6 cxd5 f5 e4 fxe4 Bd3 exd3 Kd2 Kd7 Kc3 Kd6 Kb4 h5 Ka5 e5 b4 h3 g4 d2 b6 e4 b5 h2 b7 h4 b6 h3 Nc3 e3 Qc2 d1N Qa2 e2 Nf3 e1B Bh6 Na6 b8B Bd7 b7 Be7 Ng5 Be8 Nh7 Nc5 Bg7 Nb3+ Ka6 Nc1 Rb1 Qd7 Rb2 Nh6 Re2 Nf7 Bf8 Rg8 Bg7 Nh8 Bf8 Qd8 Ne4+ Kd7 d6 Kc6 d7 Nc3 Bg7 Nb1 Neg5 Kd6 d5 Kc5 Bf8 Rg7 d6 Rf7 Bg7 Rf3 Bf8 Rd3 Bg7 Qc8 d8Q Qe6 Qd7 Qe3 Qde6 Qd2 Rf1 h1Q d7 h2 d8B Qg1 Qg6 h1B Bf8 Be4 f3 Qd4 Rh1 c6 Bbc7 Bf5 b8Q Qd6 Kb7 a5 Bg7 Ra6 Bf8 Rb6+ Ka7 Bc8 Ka8 Bb7+ Ka7 Qf6 Be5 Qd6 Beg7 Rb4 Qc8 Rf4 Qce6 Rf7 Qee4 Bf6 Qf4 Rc7 Kb8 Be7 Qe5+
1br1R3/5QnR/1rpp2nR/2Qn4/PB2q2q/bN1BQ1N1/1P2K3/1kr4r b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 b5 Na3 g5 Nb1 gxh4 e4 bxc4 d3 a5 e5 a4 Be3 Bb7 Ba7 Be4 dxe4 Bd6 Qxa4 Be7 Qd1 Bf8 a4 Ke7 g4 Ke6 g5 h5 g6 f5 g7 h3 Ne2 h2 Qd3 h4 Qh3 c3 Nd2 f3 Qg2 f4 Nb3 c2 Rc1 c6 Bg1 f2+ Kd2 f3 Kd3 h3 Qg3 Nh6 g8R Nf5 Na1 Ng7 Qf4 Ra6 Rb1 c1B Qg3 Ba3 Qg2 Qh4 Qg3 Rb6 Qg5 Bf4 Bg2 f1R Bc5 f2 Ng3 Rc1 Nb3 f1N Ke2 Ne3 Bb4 Nd5 Rf8 Rg8 Bf1 Rh8 Rf7 Rc8 Qh5 d6 Rf8 Be3 Rh8 Bd4 Rh7 Nd7 Ra1 Nf8 Qf5+ Ke7 e6 Ng6 e5 Bg1 Qc2 Bf2 Qc5 Be3 Rg1 h1Q Rb1 Q1e4 Rh1 h2 Ra1 Ke8 e7 Kf7 e6+ Kf6 e8Q Ke5 e7 Kf4 Qf7+ Ke5 Rg1 h1R e8Q+ Ne7 Bc3+ Qd4 Kf3 Rbb8 Bb4 Rc2 Re1 Rc1 Qc2 Qc4 Be2 Ba7 Nf1 Rb6 Rg6 Bb8 Rgh6 Qcd4 Ng3 Qc4 Na1 Kd4 Bf1 Ng6 Re2 Qb5 Qc5+ Kd3 Nb3 Qbc4 Re5+ Kc2 Qee7 Kb1 Bd3+ Ka2 Ke2 Qcf4 Qg5 Qf5 Qge3 Qfe4 Bb5 Kb1 Re8 Ne6 Ba6 Ng7 Bd3+
8/B2B2K1/P1Q1b3/rR2Q3/k1p2b1b/1p2qPnn/2qRb1r1/1qNN1RN1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 hxg4 d3 d5 cxd5 e5 d4 exd4 Kd2 Kd7 Kd3 c5 Ke4 g5 Ke5 b5 h4 c4 a4 d3 h5 b3 h6 g3 d6 Kc6 d7 g4 f6 d2 f7 g2 a5 g3 f3 b2 h7 b4 Nc3 b1Q Qe2 d1B Rh5 b3 Bd2 Bd6+ Ke6 Nh6 f8N Bf4 Rd5 Nf5 Kf7 Na6 Ne4 Rg8 h8Q Nc5 Nf2 Kb5 Qe4 Be2 Be3 Rg4 Rd2 Nd3 Nd1 Nf2 Ba7 Nh3 Ne6 Qb6 d8R Qe3 Qhd4 Qc2 Nc5 Be6+ Kf8 Rg5 Nd3 Rg7 Rb1 Ka4 Rb8 Bg8 a6 Qf2 Qde5 Qe3 Qf6 Rg5 N1f2 Rh5 Rb2 Ng5 Ngh3 g1B Qd5 g2 Rb1 Bgh2 Qb2 g1Q Qe6 Bhg3 Qc6+ Ka5 Qh8 Bh4 Bg2 Qgc1 Ng1 Q1b2 Rc1 Qbb1 Bh3 Bf7 Bg4 Nh3 Rf1 Rg5 Nc1 Bg8 Qc8 Ka4 Nd1 Bd5 Rb7 Rb8 Qe5 Rg6 Rd7 Rb5 Rb7 Ra5 Rb5 Rg5 Qc6 Bf7 Bh5 Rg2 Bg4 Ng3 Bd7 Be6 Kg7
N2rQ1q1/rrbr1QQ1/pR2N3/k7/2q2n1n/3N2P1/R3pPn1/3bB1KB b - - 0 1 legal: proof: b4 b5 e4 d5 h4 f5 a4 fxe4 c4 g5 cxd5 gxh4 axb5 c5 Qc2 cxb4 Qb3 Bd7 Qd1 Bc8 d4 Kd7 d6 h5 g3 e5 d5 b3 b6 b2 b7 e3 Qe2 h3 Qd1 e2 Bg5 e4 Rh2 a6 Rh1 h4 Rh2 Ne7 Nd2 b1R Ra5 Nf5 Ra3 Nc6 b8Q Ne5 Nc4 Rb7 Ra2 Raa7 Bd2 Ng6 Bg2 Nf4 Qb3 Bg7 Bf3 Be5 Bh1 Qg8 Nb6+ Kd8 d7 Bc7 Na8 Rh7 Rg2 h2 Nf3 h3 Rg1 Nh4 Ne5 Rf7 Nd3 Re7 Bf3 h1R Bc3 h2 Rd2 Rf7 Ba5 Re7 Qc3 Rf7 Qg7 Re7 Rf1 Rg1 Bg2 h1Q Qf7 Qh3 Bh1 Qe6 Bb4 Qc6 Qg7 Qc4 Qf7 Bb6 Qe5 Bc7 Qeg7 Ba5 Nb6 Kc7 d8N Bg4 Bc3 Rd7 d6+ Kb8 Na8 Bc7 Ne6 Rd8 d7 Bf3 Rd1 Bh5 Kd2 e1N Rb1 Bf3 Rb6 Neg2 Rc1 Re1 Rc2 Re2+ Kd1 e3 Be1 Rd2+ Kc1 Rc8 d8Q Bd1 Qde8 Rd8 Nb4 Rd7 Nd3 e2 Kd2 Nhg6 Rcb2 N2h4 Ke3 Nhg2+ Kf3 N6h4+ Kg4 Nfg6+ Kh3 N6f4+ Kh2 Kc8 R6b3 Rb4 Rd2 Kb7 Kg1 Kc6 Nb6 Kb5 Na8 Ka5 Rb1 Rbb8 Rb6 Rbb7 Ra2#
2k3b1/KB2b2P/1Rp2p1Q/N1Rrq1n1/3P3B/B3N1qq/8/r1nQq1Nr b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 h4 g5 e4 b3 d6 f3 Ke3 f2 Kd4 g3 Kc5 b2 d4 g2 b6 g4 b7 g3 e5 Qe7 h5 Nh6 Nc3 b1Q Ra6 Nc6 Nd5 Nb4 Ba3 Na2 Ne3 Nc1 Rb6 Ra5+ Bb5+ Kd8 b8N Be6 Nc6+ Kc8 Rh2 Ba2 e6 f1Q Rh1 Qe8 e7 Qb3 Rh4 Qe1 Rf4 Qe6 Rf5 Bd5 Rg5 Qe5 Rf5 Qd7 Rg5 Qh3 Rf5 Ng8 h6 Nf6 Rh5 Nh7 Rg5 Ra7 Na5 c6 Ba6+ Rb7 Rf5 Ng5 d7+ Kb8 d8B Kc8 Ne2 g1R h7 Rh1 Ng1 g2 Qd3 Bh6 e8Q Bf8+ Qe7 Rg8 Qd6 Be7 Qd1 Rg6 Rf2 Rf6 Rc2 Rf2 Rc4 Ra2 Rc3 Ra1 Rc4 Bf8 Bf6 Be7 Rc2 Nf3 Bh4 Ng5 Rc4 Bd8 Qh6 f6 Bb5 Rd7 Ba6+ Kc7 Bb7 Bg8+ Nd5+ Kb8 Ba8+ Kc8 Rc2 Rd6 Rc3 Be7 Rc4 Qee6 Ne3 Qeg3 Rb2 Qd5+ Kb6 Qde5 Ka7 Rd5 Rc5 Qe1 Nf3 g1Q Rb6 Qgg4 Ng1 Qgg3 Bb7+
Bk1R2n1/3brPR1/1N3b1q/q1P1Qb2/Q4p1p/Nq4r1/2qR4/KnQ2B2 b - - 0 1 illegal: No possible last move
KR3b2/1r2RP2/n2pB2N/n7/Bk5P/q2B2qb/1p1n1Qb1/NnrQN3 b - - 0 1 legal: proof: e4 c5 f4 a5 b4 axb4 d4 f5 exf5 cxd4 f6 h6 g4 Ra3 g5 Rh7 f5 Rh8 fxg7 Ra7 g6 Ra8 Bg5 hxg5 Ke2 b5 Kd3 e5 Ke4 Ke7 Kd5 b3 a4 g4 c4 e4 h4 d3 a5 g3 c5 g2 a6 e3 a7 e2 c6 e1N c7 b4 Nc3 b2 Nce2 b1N Nf3 g1Q Nc1 d2 Nb3 Rh7 Bd3 Qg3 Rf1 d6 f6+ Kd7 Ra5 Qe7 Rb5 Qe3 Na1 Na6 Rb8 b3 Rf2 b2 Re2 Nh6 g8N Nf7 g7 Ne5 Nh6 Nc6 g8Q Na5 Qg5 Rg7 Qf4 Qc5+ Ke4 Qa3 Kd5 Re7 f7 Bb7+ Kd4 Kc6 c8B Rd7 Re7 Rc7 Bh7 Kb5 Be6 Kb4 Bd3 Rc1 Qe3 Qg8 Qf2 Qg3 Rc8 Rb8 a8B Be4 Bc6 Rb7 Ba4 Bf5 Kd5 Bh3 Rb8 Bg2 Qde2 d1B Qc2 Be2 Qd1 Bef1 Qdc2 Bh3 Qd1 Ng2 Ne1 Ne3+ Ke4 Nec4 Kd5 Nb3 Kc6 N3d2 Rbe8 Rd7 Ra8 Na5+ Kb6 Bfg2 Rb8 Nb7 Ka7 Rdc7 Rc8 Rd7 Ka8 Na5+ Bc6 Rc7 Rb8+ Rb7 Ba4
NQ3K2/r2P1p2/1brn2Qn/kR1r4/4Np2/2q2B2/1BnP1b1q/1rRQ1N2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 h4 g5 e4 gxh4 a4 Bd7 e5 b6 e6 Bb5 e7 Kd7 e8N Ke7 Nd6 Kd7 Nb7 Ke8 Nc5 bxc5 axb5 c4 Ke2 Kd7 Kf3 a5 Kg4 c5 Kh5 Kc7 g4 Kb6 b4 a4 g5 h3 g6 a3 d6 h2 d7 c3 g7 c2 Qf3 c4 Qc3 a2 Bg2 Qc7 Kg5 h5 Qd4+ Bc5 Qe4 c3 Bb2 c1B Qd3 c2 Nf3 h4 Qb3 h3 Nc3 Bf2 Rb1 a1N Ne4 Nh6 Kf6 Ra7 Ke7 Qc3 g8Q Na6 Kf8 Nc7 Rg1 h1Q Nh2 Ne8 Nf1 h2 Bf3 Rh7 Qg6+ Nd6 Rg5 Qg1 Rc5 h1R Rc8 Kb7 b6 Ka6 b5+ Ka5 b7 Qh2 b8N Rg1 b6 Rg5 b7 Rd5 Ba3 Bb2 Na6 c1R b8Q Nc2 Nc7 Ba1 Rb2 Rb1 Na8 Bb6 Qc4 Rg7 Qe2 Rh7 Qd1 Rg7 Qg4 Rg6 Rb4 Re6 Qg6 Rf6 Bc1 Bb2 Rcc4 Ba3 Rb3 Bac5 Bb2 Bf2 Rb5+ Ka6 Ra4+ Ba5 Kg7 Ne8+ Kf8 Rc1 Rc5 Rc6 Ra1 Nd6 Ba3 Bd8 Rb5 Bdb6 Rbb1 Ka5 Rb2 Rb1 Rb3 Rb2 Rc1 Rb1 Bb2 Bfe3 Rb4 Bf2 Rb5+
3Qn1bN/2P5/r2P3k/2KQ1RBb/1pBr3B/Q4q1n/2rpN2b/r4R1q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 Rh6 Bd3 Rh7 Bf1 Rh8 c4 d6 a4 Ra6 d5 Ra5 Qd4 Ra8 Ra3 Kd7 Rc3 cxd4 c5 Ke8 c6 Qc7 Rc4 Qd8 Rc5 dxc5 Kd2 Kf7 Kd3 g5 Kc4 Kg7 h4 e5 f4 b5+ Kb3 c4+ Ka2 b3+ Kb2 g4 c7 g3 f6+ Kh6 a5 d3 Kc3 e4 Kd4 e3 f5 b2 a6 g2 a7 c3 f7 c2 f6 Ne7 Nc3 b1B Nge2 g1Q Nf4 Be6 Ng6 Nd7 Ne2 b4 d6 Bg7 f8Q Nd5 Qf7 Qf8 Qg8 Rh7 Nh8 Nf4 Qf7 Bb3 Qd5 Nh3 Bd2 c1R Be1 Rc8 a8Q d2 Qa3 Bg6 Bf2 Rc2 Bg3 Ne5 f7 Ra8 Bf2 Bc4 Kc5 Ra6 Be1 Qa8 f8R Ng4 Rf5 Be5 Bg3 Nf6 Bf4+ Kg7 Bg5 Qg3 Rg1 Qf3 Rh1 Bh2 h6+ Kf8 Rg1 Bh5 Rh1 Re7 h7 Kg7 Rg1 Re4 Rh1 Bf7 h5 Ne8 Bh4 Rd4 h6+ Kf8 Ng3 Bb3+ Bc4 e2 Rf1 e1R Ne2 Rec1 Bf6 Bh5 Bg5+ Nf6 Nf7 Ne8 h8B Qh1 h7 Ra1 Bhf6 Qb7 Be7+ Kg7 h8Q+ Kg6 Bh4 Ba2 Beg5 Bb3 Qg2 Qf3 Qf6+ Kh7 Qd8 Kg6 Nh8+ Kg7 Be7+ Kh6 Qg8 Ba2 Qd5 Qf4 Qe5 Rb2 Bd3 Bg8 Bc4 Rc2 Qd5 Qff3 Beg5+
1R3n2/1qP2qQB/1PNK1R1p/r5rp/N7/1B3n1q/b1Q2b1k/4RqrN b - - 0 1 legal: proof: b4 a5 d4 c5 e4 cxd4 a4 f5 exf5 Na6 b5 Nb8 Bh6 b6 h4 g6 h5 gxh5 Bd2 Bg7 Bb4 axb4 a5 Bh6 axb6 Bf8 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 Kd5 Kf4 g4 e5 c4 h6 c5 d3 c6 d2 b7 e4 f3 Kg3 f4 b3 c7 e3 g5 b2 g6 e2 f6 e1Q f5 Qee7 g7 Qf7+ Ke5 d5 Bc4 d4 Nf3 d3 Nd4 Qdd7 Ra6 Bc5 Re1 Ne7 g8B Kh2 Ne2 Bf2 Nbc3 b1Q Bh7 Rg8 Qc2 d1Q Na4 d2 Ng3 Rg5 Bb3 Qdc1 Rd6 d1R Nh1 Ra5 Ra6 Qd3 Rd6 Be6 Rd8 Qg6 f7 Qh3 f8Q Qf7 Qg7 Bd5 Re8 Nec6+ Kd6 Nd4 f6 Nd7 b8N Nf3 Nc6 Nf8 Rb8 Qcb2 Qe4 Qe2 Qc2 Qef1 b6 Qa6 Re2 Rdg1 Re5 Qbf1 Re1 Qe8 f7 Qb7 Rc8 Ng6 f8R Qf7 Rb8 Bc4 Rfe8 Nf8 R8e6 Bd5 Rf6 Be6 Qe2 Bc4 Bbc2 Ba2 Bb3 Raf5 Qd3 Ra5 Qc2
3NQrq1/2P2RP1/bBrp3B/2bQ1nB1/2kqb2R/1rp4r/4K3/n1NQ4 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 d4 gxh4 c4 c6 d5 cxd5 c5 Bb7 Bd3 Bc8 Bc4 dxc4 f4 Kf7 g4 a5 b4 h5 g5 e5 f6 Ke6 c6 a4 b6 h3 b5 h4 c7 e4 g6 a3 b7 h2 f7 e3 g7 e2 b6 h3 Nd2 Kd5 f5 a2 f6 Nh6 Ngf3 Nf5 Nd4 Nc6 b8B Ra3 b7 Rb3 Ba7 Na5 b8Q Ba6 Nc6 Bc5 f8Q d6 Qe7 Qg8 f7 c3 Rb1 a1R f8B Ra2 Rf1 h1R Qbe8 h2 Nd8 Ra4 Qf6 Rc4 Be7 Rh3 Qg5 Rg1 Qf4 h1B Bb6 Be4 Bg5 Rg4 Bh6 Rg6 Ra1 Rf6 Ra4 Rf8 Qh2 Bg1 Rf4 Rc6 Rc4 Bc5 Rf2 Bd3 Rh4 Be4 Qg3 Kd4 Qge5+ Kd3 Nb1+ Kc4 Bcg5 Ra3 Rff4 Nb3 Rf2 Na1 Nd2+ Kb4 Nb3 Kc4 Nc1 Rb3 Rf1 Bb4 Kf2 e1Q+ Kg1 Qe2 Rf3 Qa2 Kf1 Qa4 Ke2 Bc5 Rff4 Kb5 Rf3 Qd4 Rf2 Kc4 Rf3 Ne3 Rf7 Nf5 Qd5+
N1Nn3q/P2K1B1B/R2p3R/br6/kRP4r/1b1Bq1q1/1p1Q3b/1Q2q2n b - - 0 1 illegal: No possible last move
k2nN1rQ/p1b1R3/b7/2KBnq1r/P2N1qp1/B1NRq2P/Qb4R1/6q1 b - - 0 1 legal: proof: f4 d5 g4 e5 c4 exf4 cxd5 h5 b4 hxg4 Bg2 c5 bxc5 b6 Bf1 bxc5 Kf2 Kd7 a4 Kc7 e4 Kb7 d4 g5 d6 f5 d7 f3 Ke3 f4+ Kd3 c4+ Kc3 g3 d5 g4 Kd4 g2 d6 f2 e5 c3 e6 f3 e7 c2 e8N Nh6 h3 Nf7 Bg5 c1B Kc5 Ne5 Qd5+ Nbc6 Qa2 Rh5 Be7 Bb2 Ne2 g1Q Bg2 f1Q+ Nd4 f2 Nc3 Qe2 Rh2 f1Q Bh1 Qee3 Rg2 Qf5 Re1 Qc7 d8Q Rb8 d7 Ka8 Bd6 Ba6 Qf6 Bh6 d8R Bf4 Qh8 Qcf7 Rd7 Nd8 Re7 Bg3 Rd1 Qff4 Rd3 Q7f5 Bc7 Rb6 Bb8 Rg6 Bc7 Bh2 Ba5 Rg8 Bb4 Bg3 Ba3 Be1 Nd5 Ba5 Nc3 Bc7 Re2+ Q5e4 Bf3 Qf5 Rg2 Qff4 Bd1 Qff5 Bb3 Q4f4 Bd5+
3Qr1bR/1nbb3R/N2Bpp2/3NBPB1/1K2P2b/1RQ1nk2/1qb5/2b2r2 b - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 g5 h4 gxh4 a4 bxa4 e3 a3 Bc4 a6 Bxa6 a2 b5 Bf5 Bc8 Bxc8 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 c5 f4 c4 g5 h3 g6 h2 g7 h4 f5 h3 b6 Nf6 g8R Nbd7 b7 Nc5 Qc2 Qb6 Qb2 Bd7 Rg2 Re8 Rg7 Ng4 Nd2 f6 Rg8 Bh6 Ne2 Bg5 Nf4 Bh4 Rb1 a1B Nb3 Rh6 Rh8 Rh7 Rg1 h1B Rg3 h2 Rh3 Be4 b8B+ Qc7 Kb4 h1B Rh2 Nb7 Nc5 c3 Na6 c2 Qc3 Bhg2 Bd2 c1B Rb3 Bc2 e4 Ne3 Rh1 e6 Rh2 Bf3 Rh1 Bh5 Rh3 Bf7 Rh1 Ke7 d6+ Kd8 d5 Bg8 Rh2 Rg7 Rh3 Rg1 Rh1 Rf1 Rh2 Bb5 d7 Qb6 Be5 Ke7 d8B+ Kd7 d6 Qd4+ Qc4 Qb2 Nd5 Ba4 Qd3 Kc6 d7 Bb5 Bd4 Kd6 B8b6 Ba4 d8Q+ Bd7 Bdc5+ Ke5 Ba7 Be1 R2h7 Bh4 Bf8 Nd1 Qf3 Ne3 Bb8+ Kd4 Nc3 Kd3 Bfd6 Kd4 Qh3 Kd3 Nd5+ Ke2 Bg3 Kf3 Bbe5 Qa2 Bd6 Bd4 Bde5 Qb2 Bd6 Bb6 Bge5+ Ke2 Qg3 Bc7 Qh3 Nc4 Bdf4 Ne3 Bg5 Kf2 Qg3+ Ke2 Qe1+ Kf3 Qc3
1Nn2KB1/1Q5r/1B1rqb2/4b1R1/3P1pPQ/R4NR1/1kqpr1bQ/4rr2 b - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 exf4 Rh2 g5 Rh1 gxh4 d4 cxd4 c3 d3 Kf2 d2 Nh3 d5 Ra2 d4 Ng1 d3 Ra5 Nc6 Ra1 Nd4 cxd4 Ba3 Qb3 Bb4 Qd1 Bf8 Kf3 Kd7 Kg4 Ke6 Kh5 Kd5 g4 Kc4 e4 a5 b4 f5 b6 h3 b5 f3 b7 f4 b8Q a4 e5 f2 e6 h2 b6 a3 b7 a2 e7 Bg7 e8Q Qe7 Qf7+ Qe6 Qe2 Kb3 Qfc7 d1Q Bd2 Ne7 Nh3 Bf6 Kh6 Ra6 Bc3 d2 Ng5 Re8 Nf3 Rd6 Ba5 Qc2 Bb6 Kb2 Nc3 Bd7 Nd5 Nc8 Qa7 Bc6 b8R Bb7 Bg2 f1R Rg1 Re1 Bf1 h1R+ Qh2 Ba8 Ba6 Bc6 Rg2 Rhf1 Rg3 Ba8 Qcb7 Re7 Rd1 a1B Nc7 Re8 Bc4 Be5+ Kg5 h5 Na6 h4 Ba2 Bf6+ Kh6 h3 Qe7 Re2 Qab7 Be5+ Qf6 Rh8+ Kg7 Rh7+ Kf8 Rfe1 Qg1 h2 Qh4 h1R Qgh2 Rhf1 Rc1 Ka3 Rb1 Bc3 Rb5 Bb4 Bb3 Bf6 Rg5 Kb2 Bd5 Qef5 Bg8 Qe6 Qe4 Bd5 Ra8 Be5 Nb8 Ba5 Ba7 Bd8 Bb6 Bdf6 Ra3 Bb7 Qc6 Ba8 Qd7 Bd5 Qb7 Be4 Ng1 Bg2 Nf3
bq4N1/1q1qq1RN/2RQ4/2ppn3/K1R1BPr1/3Bk1b1/1q1n3P/1N3Qn1 b - - 0 1 legal: proof: d4 h5 c4 a5 g4 hxg4 b4 e5 a4 b5 e4 f6 axb5 a4 b6 Ra6 b7 Rb6 c5 Nc6 b5 Nb8 Bf4 exd4 cxb6 Nh6 e5 Ng8 e6 Qe7 Bg3 Qd8 Be5 fxe5 Kd2 Ke7 Kc2 Kd6 e7 Kd5 e8B Ke4 f3+ Ke3 Be2 g5 Qf1 c5 Qh3 g3 Bf7 g2 Bd5 d3+ Kb2 a3+ Kb3 a2 Qh5 g4 Be6 e4 Qh7 g3 Bg4 d2 Qf5 d1Q+ Ka3 Bd6 Nh3 g1Q Bd3 g2 Ng5 Nf6 Nh7 Nc6 b8R Bg3 b7 Ne5 b6 Rg8 f4 d5 Bf3 Qd7 Qh3 Rg4 Ra8 Qf2 b8N g1N Ra4 Bb7 Qf1 Ba8 Rc4 Qde2 Nc6 Qb2+ Ka4 Qfc2+ Ka5 Qcb3 b7 Qb6+ Ka4 Qbc7 b8Q Qcb7 Qc7 Qb8 Na3 Q2b7 Rb1 a1Q Rb6 Qb2 Qd6 Kd2 Bg2 e3 Bge4 e2 Nb1+ Ke3 Ra6 e1Q Rb6 Qdd8 Ne7 Qdd7+ Rc6 Qee2 Ng8 Qe1 Bg2 Ne4 Bf3 Nd2 Bfe4 Qe2 Qg2 Nh3 Rhc1 Ng1 Qf1 Qg2 R1c3 Qh3 Rb3 Qh4 Rb6 Qg5 Ra6 Qf6 Ra7 Qfe7 Qh3 Qg7 Nh6 Qde8 Bh1 Q7c8 Bhe4 Qf6 Rc7 Qcb7 Rg7 Qed7 Qf1 Qfe7 Ng8
qNR2Q2/nR3K2/kN3pnP/2r5/3rpn2/qP1r1Q2/3Bn1n1/1R1Bb1N1 b - - 0 1 legal: proof: d4 h5 a4 b5 axb5 e5 g4 hxg4 f4 Bb7 f5 Bd5 e3 c5 Nc3 cxd4 Nb1 Be6 fxe6 dxe3 Ke2 d5 Kd3 a5 h4 g5 c4 d4 Ke4 a4 Kf5 f6 Kg6 e4 e7 Kd7 e8N Kc8 c5 Kb7 h5 a3 b3 d3 b6 g3 h6 d2 Bd3 g4 Qe2 d1R Qb2 a2 Rh5 g2 Nc7 g3 Qc3 e2 Ne6 e1N Rh2 Ne7+ Kf7 Nbc6 Bc4 Na7 Qf3 Rc8 Be2 Rd3 c6+ Ka6 c7 Ng6 b7 Bb4 b8Q Qd5 Bf4 Qa8 Nd4 Rhd8 Nc6 Rd4 Na3 Ba5 Rd1 a1Q Nc4 Qa3 Bd2 Bb4 Rh5 Ba5 Nh3 g1N Nb6 g2 Rb1 Bb4 Bd1 Ne2 Rg5 g1N Rb5 Bc3 Rb4 Nef4 Rb5 Nge2 Ng1 Neg2 Rb4 Rcd8 c8R R8d5 Qd6 Rc5 Qf8 Nd5 Nc4 Ndf4 Rb7 Ba5 Nb6 Bb4 Bc1 Be1 Nb8+ Ka5 Bd2+ Kb5 N8d7 Ka6 Nb8+
b3kQ1K/3N4/n2nB1N1/rpP4R/1Q1PBQ2/3r1p1r/Bqq2n1n/4R1q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 Bb2 dxe4 Bc1 h5 gxh5 c5 f4 e5 Bg2 c4 Bf3 e3 Bg4 c3 Bh3 e4 Bf1 Bd6 Bb2 Be5 fxe5 cxb2 Ke2 g5 h4 b5 d4 f5 a4 b3 c4 g4 e6 f4 a5 g3 h6 g2 c5 Qc7 h5 Kd8 a6 Bb7 a7 Nf6 h7 Ba6 e7+ Kd7 e8B+ Kd8 h6 Ng8 Nd2 b1R Bf7 b2 Qe1 Rd1 Nc4 b1Q Rh5 Rd3 Be6 Nf6 Nh3 g1Q Ne5 Ke8 Nd7 Bb7 Qb4 Na6 Bg2 Qb3 Re1 Qa5 Bf3 Qaa3 Bfg4 Qc3 Ba2 Qc4 Be6 Qcb3 Nf2 Qb1 Ng4 Qc2+ Qd2 Qab2 Nge5 Kd8 Ng6 Ne8 Rb1 Nd6 Re1 Rg8 h8Q Ke8 Qe5 Rh8 h7 Bc6 Rf1 Bd5 Ke1 e2 Qb4 Qg4 Kf2 e1N+ Qd2 Nf3 Re1 e3+ Ke2 Rc8 a8B Qg1 Bc6 Ra8 Qf6 Bc4 Be4 Bd5 Qe5 Nh2 Qg5 Ng4 Kf3 Nf2 Qb4 Ra7 Qf5 Ba8 Qe5 Nb8 Qf5 Ra5 Qg5 Na6 Qg3 Nd1 Kg4 e2 Kg5 Nf2 Kh6 f3 Kg7 Ng4 Qf4 Nh2 Rd1 e1N Rb1 Re3 Rd1 Nd3 Rc1 Nf2 Re1 Rf8 h8Q Rd3 Qhh6 Rf5 Kg8 Rg5 Kg7 Rg3 Kh8 Rh3 Qhf8#
q1BBK1kr/N3R3/p6R/2PP3N/1q1NQ3/1Q1pb1bn/1B5n/n2bqb2 b - - 0 1 legal: proof: f4 b5 g4 c5 a4 e5 axb5 exf4 Nh3 h5 Ng1 hxg4 d4 d5 e4 a6 Bg2 Ra7 Bf1 Rd7 Nd2 cxd4 Nb1 d3 Bh3 d4 Bf1 Rd5 exd5 Rh3 Bg2 Rh5 Bf1 Rh8 Kd2 g5 b4 f5 c4 Kf7 h4 g3 h5 f3 h6 f4 b6 g2 b5 g4 c5 g3 h7 f2 b7 f3 b6 Be7 Bb2 Be6 Qb3 Bd6 Ne2 g1N Nbc3 g2 Nb5 Nh6 Na7 Nc6 b8B Bg4 b7 Na5 Bc7 Bg3 b8N Nh3 Re1 g1B Nd7 Qa8 Nf6 Bh5 Bd8 Ng4 Bg2 f1B Rh2 f2 Be4 Ne5 Bf5 Ng4 Rh1 Nh2 Bc8 Bf3 Nh5 Bg4 Nef4 Bd1 Ne6 Nc6 Re2 Nb4 Re5 Nc2 Re3 Rf8 h8Q Na1 Qe5 Kg8 Qe4 Re8 Rf3 Rf8 Rf7 Re8 Re7 Rf8 Kc1 d2+ Kb1 d3 Nd4 Bde2 Ka2 d1Q Ka3 Qb1 Kb4 Bd1 Ka5 Re8 Bc3 Qb2 Kb6 Qd2 Bb2 Qc3 Qe5 Qb4+ Kc7 Nf3 Kd7 Nf4 Nac6 Bfe2 Ne6 f1Q Qec3 Qe1 Qcc4 Be3 Na7 Bf1 Nhg7 Rf8 Rh3 Nh2 Rh6 Rf7 Nh5 Nh3 Ke8 Rh7 Qe4 Rh8 Nd4
B1qnB2K/1N1r4/Bqn3Q1/3R2p1/R2P2p1/qP2Q2b/qqN1Rq2/k1r5 b - - 0 1 legal: proof: c4 b5 g4 d5 a4 dxc4 axb5 h5 Qb3 hxg4 Qa4 e5 Qd1 e4 f4 e3 d3 Bd7 Bd2 exd2+ Kf2 Be7 e4 Rh6 e5 Ba3 Ke2 Bd6 e6 Be5 fxe5 Bc8 Qc2 Rh7 Qd1 Rh8 Ke3 Ke7 Ke4 a5 Kf5 c5 h4 c3 b3 c4 b6 a4 b7 c2 h5 c1Q h6 c3 h7 a3 Rh4 a2 Rh6 c2 Bh3 Qb6 Na3 Ra7 Qe2 d1Q Bg2 Qb2 Nc4 c1Q Na5 Nc6 b8Q Nd8 Nb7 Qdd2 Qe3 f6 Kg6 f5 Rh5 Bd7 Bh3 Qc8 Bg2 Qa3 Ne2 Qdb2 Re1 a1Q Nd4 Qba2 Re2 Q1b2 Nd6 Rc7 Ba8 Rc1 Rg5 f4 Qb7 f3 Qa6 f2 Nc2 f1Q Nb7 Bc6 d4 Qf2 Qad3 Bg2 Qf5 Bf1 Qf6+ Ke8 e7 Kd7 e6+ Kc6 Rd5 Bh3 e8B+ Qd7 Rd6+ Kb5 e7 Qdc6 Rd7 Qcc3 Bf7 Qc8 e8B Ne7+ Kg5 g6 Kh6 g5 Kg7 Nec6 Qg6 Rf8 h8R Rg8+ Kh7 Rf8 Bd5 Rf7+ Kg8 Rh7 Bg2 Rf7 Bf1 Rh7 Rd6 Rd7 Rh7 Qe1 Kh8 Qf2 Na1 Kb4 Rd5 Qaa6 Re7 Ka3 Ree5 Qbb1 Nc2+ Kb2 Rf5 Q6a3 Ra5 Qba1 Rfd5 Kb1 Ra4 Q1b2 Rd2 Qh2 Ba6 Qf2 Ne1+ Ka1 Rc2 Nb8 Re2 Nbc6 Nc2+
q1BN4/brpp1B1b/Qn3R2/2k1n1nn/P6b/KBRn4/1QP5/N1Q3b1 b - - 0 1 legal: proof: b4 a5 h4 axb4 d4 e5 dxe5 b5 g4 f5 a4 g5 Ba3 bxa3 Qd6 Ra6 Qd1 Rg6 Nd2 fxg4 Nb1 g3 Nh3 g4 Ng1 Rg5 hxg5 Be7 Rh5 Bc5 Rh1 Bf8 Kd2 Ke7 Kc3 h5 Kb4 g2 e4 a2 f4 h4 g6 h3 f5 h2 g7 g3 e6 Nc6+ Kb3 b4 e5 Bb7 Nh3 g1B Ba6 g2 Nd2 Qa8 Qc1 Nf6 g8B Nh5 Ng5 Bg7 Qb2 Bf6 Nf7 Bh4 Rf1 a1B Nd8 Ba7 Rf3 g1N Rc3 Nf3 Rf1 h1N Bf7 Ng5 f6+ Kf8 Bg8 Nf2 f7 Nd3 Rf6 Ke7 Ka2 b3+ Ka3 Rh6 Qc1 b2 Nb3 b1N+ Ka2 Nd2 Ka3 Kf8 e7+ Kg7 e8B Kf8 e6 Ke7 Qb2 Kd6 f8Q+ Kd5 Bef7 Nce5 Qc1 Bc6 Bc8 Ndc4+ Ka2 Bb7 Qfa3 Nb6 Qab2 Kd6 Ka3 Be4 Bg6 Bf5 B6f7 Bh7 e7+ Ne6 Rf2 Ng5 e8Q Rf6 Bd5 Rf4 Bgf7 Rb4 Bde6 Rb5 Rf6 Rb4 Nd4 Rb5 Bc4+ Kc5 Qe6 Nd5 Qa6 Rb7 Ka2 Nb6 Nb3+ Kb4 Qbb1 Bb2 Na1 Kc5 Kb3 Ba3 Qbb2 Bb4 Ka2 Ba5 Ra3 Bae1 Rc3 Bef2 Ka3 Bg1 Bb3+
3RB2r/bk6/1Pprr2N/NrPn2r1/BQKB1p2/4b1r1/3N4/1RQ2n1r b - - 0 1 legal: proof: f4 f5 g4 b5 a4 bxa4 e4 d6 e5 dxe5 Ke2 exf4 Kf2 f3 Ke1 f4 h3 g5 Ne2 Bf5 gxf5 g4 Ng1 g3 Bd3 Qd6 Ba6 Qg6 Bf1 Qg4 hxg4 Kd8 Rh5 Kd7 Rh1 Ke8 d4 Kd7 Kd2 Kc6 Kd3 h5 c4 a5 b4 e5 b5+ Kb7 d5 c6 d6 e4+ Kc3 e3 d7 a3 d8Q a4 g5 h4 f6 h3 f7 f2 g6 e2 g7 e1R Qf3 a2 Qd2 a3 Qde3 g2 Qfe2 h2 Qb2 Ra5 Nf3 g1B Ne5 Nf6 g8B Nh5 Qb4 Ng3 Nd2 Na6 Rb1 a1R Bb2 a2 Ng4 Nc7 Nh6 Bc5 f8N Ba7 b6 Rb5 c5 Nd5+ Kc4 Re2 Bh3 f1R Bd4 Rf3 Bd7 Nf1 Be8 Rg3 Ne6 Bf2 Qea3 Be3 Qc1 Rg5 Rg1 h1R Bh7 Rh3 Bc2 Rhg3 Ba4 Re1 Bf6 Rd1 Nd4 Re1 N4b3 Rd1 Rb2 Rb1 Bd4 a1R Qc2 Rbc1 Rb1 Re1 Qcc3 Rcd1 Rh1 Bf2 Rh4 Re6 Qc1 Be3 Rg4 Rh5 Rg8 Rh1 Ne4 Ra2 Rf8 Rag2 Ned2 Rgg1 Bd7 Rg5 Rd8 R1g3 Be8 Rh4 Nf3 Ne7 Be5 Rdd6 Nfd2 Rh1 Bd4 Nd5 Na5+
6nB/rPPq1p1R/k1BQ1rpr/2b2R1n/6r1/3KN1Rn/1N3q2/Q2n2N1 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 Nh3 c5 Ng1 cxd4 g4 hxg4 b3 a5 b6 a4 Ra2 a3 Ra1 Bb7 Nh3 Bc6 Ng1 Ba4 bxa4 Rh7 Kd2 Rh6 Ke1 Rh8 Kd2 d5 h4 Kd7 e4 Kc8 c4 Kb7 c5 g3 e5 g6 h5 a2 e6 d3 c6+ Ka6 a5 g2 b7 f3 h6 f2 h7 d4 c7 Nf6 e7 Nbd7 e8N Ba3 Ng7 Bc5 Rh5 Ra7 Nf5 Ng8 Ne3 Qh4 Nc3 Ndf6 Rf5 Nh5 Na4 Qh2 Rb1 a1R Nb2 Ra4 Be2 f1R Bf3 Rb4 Bc6 Rf4 Ra1 Rg4 Ra3 Rb6 Qf1 Qh4 Qf4 Qg3 Qd6 Qf2+ Kd1 d2 Kc2 d1N+ Kd3 Re4 Bd2 Rf4 Bc3 Rg4 Ne2 g1N Rb3 Nh3 Ng1 Nh6 Ra3 Rb8 h8R Ng8 Rh7 Re8 Kc4 d3+ Bd4 d2 Kd3 Ree4 Bh8 Rh4 Ra4 Reg4 Raf4 Ng7 Rf3 Rh6 Rg3 Nh5 Bd5 Kb5 a6 Ka5 Qf6 Re6 Bc6 Rd6+ Qd4 Rf6 Qd6 Ra8 a7 Nc3 Qf4 d1Q+ Kc4 Qd7 Qd4 Nd1 Kd3 Re8 a8Q+ Kb6 Qa2 Ra8 Qd6 Ra7 Qb1 Ka6 Qa1+
1rQ1R3/Q4N2/NnNnQ1Bn/2KpP2R/6b1/r3k3/r2Prp2/1n2Br1b b - - 0 1 illegal: Other
1r3Q2/rbQB2pk/r5P1/RNr1bb2/1R4pB/P4Brn/6bN/3K1n1Q b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 h4 e6 f4 Qf6 g4 Qg5 f5 exf5 hxg5 fxg4 d4 c5 e4 b5 a3 h5 e5 f5 d6 Kf7 d5 Kg6 e6 b3 d7 c4 d8Q b4 e7 f4 e8B+ Kh7 d6 c3 d7 c2 Qb6 f3 d8Q h4 Be2 h3 Nc3 f2+ Kd2 f1R Ra2 h2 Ne4 b2 Nf3 b1B Qdd6 b3 Rg1 h1B Bc6 b2 Qe1 Ra7 Qf6 Bd6 Rg2 Nd7 Qfd8 Nf8 Qbf2 Be5 Qd7 Nh6 Qc7 Bb7 Nh2 Nf5 Bf3 Ne3 Bd7 Ne6 Nc3 Rg1 Nb5 Rha8 Ke2 Ra6 Bd2 c1R Qef1 Rc5 Be1 R8a7 Qh4+ Kg8 Rf2 Bf5 Qh5 b1R Rb2 Bg2 Rb4 Rb3 Qf7+ Kh7 Qf8 Nf4+ Kd2 Nc2 Kd1 Nh3 Rd2 Rb2 Rd5 Rb3 Bh4 Ne3+ Kd2 Rb1 Qc1 Nf1+ Kd1 Rc4 Nc3 Rcc6 Ra5 Rc5 Nb5 Bh1 Rc4 Rg3 Rb4 Bg2 Qcd6 Rc8 Qc7 Rb3 Q1c6 Rb8 Qd5 Rc3 Qe4 Rc5 Qe1 Nd2 Qh1 Nf1 g6+
1RQnK2B/2R3pQ/1qNPB3/R2rr3/n4q1B/nP3k1r/q2N2p1/3qq3 b - - 0 1 legal: proof: c4 b5 g4 h5 d4 hxg4 a4 bxa4 e3 d5 Qe2 dxc4 Qd3 Rh3 Qd1 Rh8 d5 e5 Na3 e4 Nb1 Bc5 f3 Bd4 exd4 e3 Bd3 Bf5 Bf1 Be4 fxe4 Qd6 Qb3 Qe7 Qd1 Qd8 Ke2 Kd7 h4 Kd6 b3 a5 h5 f5 h6 c5 h7 g3 Kf3 c3 Kf4 c4 Bd3 a3 Qe1 g2 Nf3 a4 Ng5 e2 Qf1 e1R Rh6+ Nf6 Nd2 c2 Rh5 a2 Rb1 a1Q Qf3 c3 Rh3 a3 Bc4 a2 Qd3 Nc6 Rh5 Ra5 Ne6 Qb6 Kg5 f4 Kg6 f3 Kf7 f2 Nd8 f1Q Qh3 Qf4 e5+ Kc7 e6 Kd6 e7 Ne4+ Qf5 Nc5 e8R Re5 Bb2 Na4 Rc1 Qb1 Rf8 a1N Rg8 Nb4 Nc6 Qa2 Rb8 Rc5 Ba6 Ra5 Bc8 Rb5 Be6 Ra5 Rf1 c1Q Rg5 Qc2 Rc1 Qd1 Rh5 c2 Bc3 Rd8 h8B Re3 Bb2 Rh3 Rg5 Rd7+ Ke8 Rb5 Qh7 Ra5 Rb1 c1Q Re5 Qc3 Rc1 Qce3 Rc5 Qee1 Rf5 Nac2 Rf7 Raa7 Ra5 Na3 Bc1 Nd3 Bb2 Ndc5 Bc3 Nb7 Bb4+ Kc7 Be7 Nd8 Bh4 Rb7 Rba8 Rb8 d6+ Kb7 d5 Rc8 Nd4 Rc5 Nc6 Re7+ Kf8 Rb5 d7 Rc5 d6 Rd5 Bg4 Ree5 Be6 Qbe3 Ke8 Kb6 R5a7 Kc5 Rb8 Qed4 Rf5 Qb4 Rc7 Qb6 Na5+ Kd4 Nc6+ Ke3 Rg5 Nf7 d8Q Ke2 Qc8 Nd8 Rg3 Kf2 Rc3+ Ke2 Rc5 Ke3 Ra5 Ke2 Nc4 Kf3 Nd2+
NKn1qq1n/2Nk4/1Q1n1BB1/2bpn1Qq/1P2pn2/rP1RR3/1q3N2/2B5 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 a4 b5 e5 bxa4 e6 Ra7 Be2 Rb7 Ba6 fxe6 Bb5 e5 Bf1 e4 d3 c5 Rh3 c4 Rf3 c3 Rh3 Rc7 Rh1 Bb7 Bf4 Bd5 Bc1 Bb3 cxb3 Rc4 dxc4 Bg7 Qd5 Bh6 Qd1 Bf8 Ke2 d5 Ke3 e5 g4 h5 f4 c2 c5 a3 g5 a2 f5 a4 f6 a3 c6 h3 c7 h4 c8Q h2 g6 h3 g7 Ne7 g8N Nbc6 Qd2 Na7 Nf3 Ng6 Qa8 Kd7 f7 Nc8 Bc4 Bc5+ Nd4 Qf8 Rd1 h1Q Ne7 h2 Bd3 Rh7 Qg2 Nh8 Qb8 Rh6 Qg1 Ra6 Nc3 Ra8 Rb1 a1Q Qg5 a2 Qb6 Ra3 Re1 Qe8 f8B Qb2 Bg7 a1Q Nd1 Qf1 Re2 h1N Nf2 Ng3 Bf6 Qh3 Re1 Qhh5 Rd1 Bd6 Nb5 Bc5+ Kd2 Qf8 Nc7 Nf5 Re1 Nfd6 Re3 Na7 Nc8 Qfe8 Rf3 e3+ Ke2 Qf8 Bg6 Qaa2 Kd3 e2 Re3 e4+ Kd2 Qe5 Rd3 Qee8 Kc3 e1N Re3 Ndf7 Ra1 Ng2 Rd3 Be7 Kd4 Nd6 Kc5 Nf4 Re3 Qb2 Ra2 Nc6 Ra1 Nc4+ Kb5 Bc5 Ra2 Ne7 Ra1 Na5 Ka6 Nc4+ Kb7 Nd6+ Kb8 Nef5 Bd2 c1N Rb1 Ncd3 Rd1 Ne5 Bc1 Ne7 Rdd3 Qa2 Qa6 Kd8 Nb6 Qb2 Nba8 Kd7+ Qc8+ Kc6 Qd8 Nec8 Na6 Nf3 Qb6+ Kd7 N6c7 Ne5 Rg3 Qfh6 Rgf3 Qhf8 Rfe3
1qNr4/5q1R/1n3P1q/1b1QN2Q/1Bn1q3/Npk5/n1p1n1P1/nB1R1R1K b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 g5 c5 gxh4 c6 dxc6 Qe2 c5 Qd1 c4 Na3 b5 Ke2 e5 Rb1 f4 Qe1 Bc5 Qd1 Be3 Ra1 Ra6 Ke1 Rf6 Nb1 Rf5 exf5 e4 Ke2 Bd4 Ke1 e3 Qc2 e2 Qd1 Be3 fxe3 Qf6 Kf2 Qd8 d4 Ke7 a4 Kd6 a5 Kd5 a6 e1N a7 c5 a8N h5 Ra3 c3 Ra6 c2 Ra3 h3 Ra2 h4 Rb2 h2 Nd2 f3 Qe2 h3 Nc4 b3 Ne5 c4 Nd3 c3 e4+ Kc4 d5 b4 d6 Nh6 d7 Ng4+ Kg3 f2 e5 Ne3 e6 Ba6 e7 Bb5 Ra2 b2 e8R b1Q Bd2 c1N Ra1 b3 Qh5 Na2 Ne2 N1c2 Re7 Qc8 d8Q Nd7 Be1 Nb6 Nd4 Qb8+ Ne5+ Kb4 Bd3 f1Q Rh7 Nec4 Qd5 Rd8 Rg1 h1N+ Kh2 Ng3 f6 Ne2 Bg6 Qf3 Bf5 Qe4 Kh1 Qd1 Rc1 Na1 Rf1 Qd2 Rb1 Qh6 Rd1 Qg6 Bd2 Qf7 Be1 Qh4 Bb1 Qe4 Rd2 c2 Rd1+ Ka3 Bb4+ Kb2 Nf5 Qd4 Ne7 Qe4 Bd6 Kc3 Nc7 Ne3 Bc5 Nec4 Bb4+ Kb2 Qg4 Be8 Nb5 Bd7 Na3 Bb5 Bd6 Kc3 Nc8 Nec1 Kg1 h2+ Kf2 h1Q Bb4+ Kb2 Kg3 Qh6 Qh5 Ne2+ Kh2 Qe8 Be7 Qf7 Kh1 Kc3 Bb4+
2qn1krq/rpQ1rqrP/3K1QP1/2p4r/B2N2r1/1n1RB3/Q6N/4R2N b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 Nf3 h5 Ng1 g6 h3 Bh6 g5 Bg4 gxh6 g5 Ba3 Bc8 Bc1 g4 Bb2 g3 Bc1 Bg4 hxg4 Kd7 Qa4+ Ke7 Qd1 Ke8 a4 f5 d4 c5 Kd2 b3 Kc3 b2 e4 h4 a5 h3 d5 h2 a6 g2 g5 f3 a7 f4 e5 f2 d6 f3 g6 Rh7 d7+ Kf8 e6 Nc6 Nd2 b1R Ra3 Rg7 h7 Nh6 Nb3 Nd4 Ne2 g1R Ng3 Qc8 Be3 Ra1 Qc2 Re7 Qf5+ Nf7 Qf6 Rb8 Be2 f1R a8Q f2 Bd1 Rg2 Rg1 h1R Qa6 Rh4 Nh1 Rh5 Qa4 Rg4 d8Q+ Re8 Qc7 Re7 Bc2 Rfd1 Re1 f1Q Nd2 Ra2 Nf3 Nb3 Nh2 Rdd7 Qaa5 Nc1 Ba4 Nb3 Qh4 Nd8 Qf6+ Ke8 Qa7 Rg7 e7 Ra8 Qfc6 Qf7 Qaa6 Ra7 Qg2 Rf2 Qf6 Rff4 Qf2 Rg8 Qa2 Re4 Kb2 c3+ Kc2 Nd4+ Kd3 c2 Rb3 Re6 Kc4 c1Q+ Rc3 Qa1 Rd3 N8c6 Qg3 Rc7 Qge5 Nb3+ Kd5 Kd7 e8N Re7+ Qe6+ Kd8 Ng7 Qb2 Nf5 Ke8 Nd4 Kf8 Kd6 Nd8 Qf4 Qa1 Ndf3 Qh8 Nd4 Qf5 Qg3 Reg7 Qf4 Qf7 Qff6 Re7 Qd7 Rhh4 Qc6 Rh5 Qc7
r6B/1nn2RR1/k2Nn2r/NPr2Q2/2rqp3/p3Pn1B/2Q3B1/1Rn1nK2 b - - 0 1 legal: proof: b4 f5 d4 c5 a4 cxd4 g4 fxg4 c3 b5 Bd2 bxa4 b5 g6 Bc1 Bh6 h3 g3 Ra3 g5 Bf4 g2 Bh2 g4 Ra1 Bb7 Bg3 Bf3 Bf4 g3 Bc1 Bg4 hxg4 Bf4 Bd2 Bd6 Bc1 Bb4 cxb4 Qc7 Ra2 Qb6 Ra1 Qd8 f4 e5 g5 d5 e3 Kd7 f5 Kc8 g6 Kb7 b6 h5 f6 a5 f7 h4 f8R a3 g7 e4 Qd3 a2 Ne2 g1N Bb2 a4 Qd2 a3 Nc1 g2 Qe2 d3 Rf2 h3 Rf7+ Nd7 Be5 h2 Rf5 d4 Bb8 d2+ Kf2 d1N+ Ke1 d3 Qf3 Ne2 Nc3 g1N Bf4 Rh5 Bh6 Ngf6 g8B Nf2 Qg4 Nd5 Rf3 Nc7 Be6 Nf8 Rf7 Rc5 Nb5 Ka6 b7 Qd4 Rb1 a1N b8Q Nb3 Bg2 d2+ Kf1 Na5 Qf5 Nd3 Nb3 Ne1 Bg7 d1R Bh8 Nc1 Qc8+ Nb7 Na5 Ngf3 Rg1 h1R Nd6 Rh6 Bd7 Nd5 Qc7 Ne6 Bc8 Rc4 Qc5 Ndc7 Qc6+ Qb6 Qa4 Rd5 Qc2 Rb5 Qh5 Nd5 Bh1 Nd8 Rgg7 Nc7 Bh3 Qd4 Qf5 Rbc5 B1g2 Nde6 b5+
Nq1B2K1/6br/1P2Nr2/b2r1R1r/R1pQ1R2/2P1B1pb/3Qb2b/1kNb4 b - - 0 1 legal: proof: d4 e5 a4 exd4 g4 h5 f4 b5 e4 bxa4 f5 Na6 e5 Nc5 Be2 Ne6 Bf3 Nh6 fxe6 f5 Be2 f4 Bf3 Nf5 gxf5 Bd6 Be2 Bf8 Bg4 hxg4 Ke2 Ke7 Kd3 g5 Ke4 c5 Kd5 a5 b4 d3 h4 a3 b5 g3 h5 f3 h6 f2 h7 f1B b6 a4 Qd2 a2 Rh6 c4 Qf2 a3 Nc3 d2 Na4 d1B Qf3 g2 Rg6 g4 Qf2 g3 Rf6 Ra7 Be3 Bg7 Ne2 g1B Nc5 Bh2 Nc1 Bfe2 Qf4 Qc7 Qd4 Qb8 Qd2 Rf8 h8Q d6 Qh4 Rh8 Qhd4 Rh5 Rb1 a1B Rb4 a2 Ra4 Bb2 c3 a1R Rf8 Ba3 Rf6 Bb4 Rf7+ Ke8 e7 Ba5 f6 Bh3 Ne6 Kd7 Rf8 Rb1 e8N Rc7 f7 Ra7 Ke4 Kc6 N8c7 d5+ Kf4 Rb5 Na8 Rh6 Kg5 Rf6 Rg8 Rc5 f8B Kb5 Be7 Rb7 Rf8 Rd7 Qf4 d4 Bd8 d3 Qd4 Rdc7 Qe1 d2 Qf2 Rf3 Kg6 Rf6+ Kh7 Rd5 Kg8 Re7 Nc5 Rb7 e6 Rh5 e7 Rd7 e8R Rdd5 Ra3 Rh7 Ne6 Rdh5 Rb3+ Ka4 Rb4+ Ka3 Ra4+ Kb2 Re7 Kb1 Ref7 Bb3 Qg2 d1R Qf2 Rd3 Qe1 Bbd1 Qd2 Rfh6 Rf4 Rf6 Qe5 Rd5 Qed4 Rfh6 R8f5 Rg6 Rf2 Rf6 R2f4
1B1r1QQ1/2nNp1B1/1N6/1k3PKp/Rrnr3n/3rnBn1/4P1nR/2N1b3 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 fxg4 d5 b5 d6 b3 Bg5 b4 Bd2 cxd6 Bh6 d5 Bc1 d4 h3 g5 Bd2 g3 Bg2 g4 Na3 Ba6 Nb1 Bb5 Bf1 g2 axb5 g3 Bc1 Qc7 Qd3 Qf4 Qd1 Qg4 hxg4 Ra6 Ra3 Ra7 Ra1 Ra8 Kd2 d5 c4 Kd7 f4 h5 c5 b2 f5 d3 Ke3 b3 Kf4 d4 g5 d2 b6 Kc6 g6 d3 g7 Kb5 c6 Na6 c7 Rd8 c8N Nf6 g8Q Nc7 b7 Bg7 b8B Rd4+ Kg5 Ne4+ Kf4 Bf6 Qg7 Bh4 Ra4 Rhd8 Qe1 d1N Nh3 g1R Bg2 d2 Rc4 Ne3 Ra4 d1N Nd2 b1R Nf3 b2 Nf2 Rd3 Bf1 g2 Nb6 Ng3 Rh2 Rh1 Qf8 g1N Ne5 Nf3 Rg2 Rh3 Rh2 R3d6 Ned7 Rd4+ Ne4 Nc2 Qf2 Nce1 Bg2 Ne3 Bh1 Bf6 Qf1 Nh4 Qg2 Bh8 Qg1 N1g2+ Kg5 Be5 Nf2 Bd6 Ng4 Bb4 Nf2 Be1 Bd2 Rc1 Ba5 b1N Nd3 Rcc4 Bc3 Na3 Nc1 Rb4 Ba1 Nac4 Bc3 Nf4 Bf3 Nfg2 Ba1 Rd6 Bh8 Rd4 Bg7 Ngf1 Bh8 Nd1 Bg4 Rhd3 Kh6 Nf4 Bf3 Nde3 Qgg8 Ng3 Kg5 Nfg2 Bg7
qbK3Nb/3r1nk1/Q2Qp3/5R1P/3p3R/1N2rRqP/2Bqn2p/3NB1n1 b - - 0 1 illegal: No proof kernel
q5NQ/7N/3Bpb1b/pbP2qQr/6Qr/1B2nqp1/4P1k1/1BK1RnR1 b - - 0 1 legal: proof: g4 g5 a4 h5 d4 b5 axb5 c5 f4 cxd4 Qd3 h4 Qg3 hxg3 fxg5 f5 Ra2 fxg4 Ra3 Kf7 Ra1 Ke8 Kd2 Kf7 h4 Kg6 c4 Kf5 b4 Kf4 g6 d5 g7 a5 h5 e6 h6 d3 h7 g2 c5 Kg3 b6 d4 b7 Ne7 g8B Nf5 b5 Bd7 b6 Ne3 Nc3 Na6 b8Q+ Nc7 b7 Bb5 Nd5 Bh6 Nh3 g1B Bg2 Nf1+ Kd1 d2 Nf6 Qe8 Qc8 Nd5 Qd8 Qh5 Rb1 Qf5 Ng5 Qf3 Kc2 d1Q+ Kb2 d3 b8Q+ Kf2 Qf4 g3 Qg4 d2 Bf7 Qa4 Bg6 d1Q Ng8 Qae4 Bf4 Qdd3 Re1 Nde3 Bd6 Qb7 Qf6 Qdf5 Kc1 Rf8 Qe5 Qa8 Qg7 Q5d5 Bc2 Rf4 Bb1 Rd4 Qg6 Qff5 Bge4 Qb3 Bed3 Kg2 Bdc2 Qbd5 Bb3 Qdf3 Ne4 Ra4 Nef6 Rb4 Q4g5 Rh4 Q6h5 Nd5 Qg4 Bd4 Nd7 Nde3 Nf8 Bdg7 Ne7 Rg8 h8Q Bf6 Nh7 Rg7 Ng8 Rg6 Q5f4 Rg5 Qe5 Rgh5 Qef4 Q5e4 Qfg5 Qef5 Rg1+
q1r5/1BqRr3/r1p1BpR1/1b1n4/1NQ5/bR2Q1p1/1QqP3P/K1N3nk b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 e4 Ke7 d6+ Kf6 b4 Ke5 d7 Kf4 e5 a5 e6 g5 b6 g2 b7 f6 e7 a4 e8B c6 b5 a3 b6 g3 Bf7 g4 Ke2 a2 Kd3 Ba3 Kc2 Ne7 Qe2 Nd5 Nc3 Qc7 d8R Nd7 b8Q Ne5 b7 Nf3 Rd7 Ra6 Rb1 a1Q Qa7 Rh7 Be6 Re7 b8Q Qa2+ Rb2 Qb3+ Kb1 Qc2+ Ka1 Bb7 Rd6 Bc8 Bg8 Bf5 Rb3 Bd3 Na2 Bb5 Qef2 Ke4 Ne2 g1R Nec1 g2 Be6 Kf4 Bc4 Re1 Qac5 g1Q Nb4 g3 Rd7 Re2 Qe1 Qf2 Rf1 Ng1 Bd3 Kf3 Qc4 Re5 Qe3+ Kg2 Qb7 Qe2 Rf5 Kh1 Rg5 Re8 Rg4 Rc8 Rg6 Qh5 Qbb6 Qh8 Qbd4 Qe8 Qb2 Re4 Bg8 Re7 Be6 Qed8 Bdf5 Qg8 Bf7 Rce8 Rd8 Ra4 Bc8 Ra6 Bb7 Qf8 Rd6 Rea8 Be6 Qfb8 Qe1 Qa7 Rd7 Rc8 Qee2 Qa8 Qe3
3Q3q/RbK1n2R/P2p1n1q/4rPB1/p5r1/7N/b1QN1p2/1BrQk1Bb b - - 0 1 illegal: No proof kernel
Nk6/4Q1p1/K4PN1/PB1qnr1p/1q1qbnrp/2r5/2RR1B2/1RQ3bB b - - 0 1 legal: proof: c4 d5 cxd5 a5 d4 e5 dxe5 f6 b4 axb4 h4 Nc6 g4 Nb8 g5 fxg5 Bg2 gxh4 Bh3 Ra3 Bf1 Ra8 Kd2 Kd7 Kd3 b5 a4 h5 e4 c5 f4 Kc7 e6 b3 d6+ Kb7 e5 b4 Kc4 b2 Kb5 c4 d7 c3 a5 c2 f5 b3 f6 Ne7 Rh2 Rh6 Nf3 Rg6 Nc3 b1Q Na4 b2 Nb6 Nd5 e7 Nc6 e8B Bc5 e6 Nf4 e7 Qa2 Be3 c1R Bg2 Qd5 Bf2 Ne5 Bh1 Kb8 Rb1 Rc3 Qc1 Rg4 Rg2 Ra7 Na8 Rb7+ Ka6 Bd4 Bg1 Bc5 Rc2 Bb6 Bf2 Be3 Bg3 Bg1 Bf2 Qd4 Bf7 Qd5 e8Q Qd4 Bd5 Rb5+ Bb7 Rbc5 Qe7 Qg8 d8R Qgd5 Rd6 Bf5 Bc6 Bh7 Bb5 Be4 Ra1 b1Q Rd7 Ned3 Ne5 Qbb4 Ng6 Ne5 Rb1 Rf3 Qd1 Rcc3 Qd2 Ne6 Qc1 Rf5 Rd2 Nf4 Rc7 Re3 Rcc2 Rb3 Bc4 Rc3 Bb5
2n4B/2N1PKQn/2b4k/5Brp/PQN2bbn/1q3R1N/p2q1p2/BR5r b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 b3 gxh4 Ba3 a5 Bc1 a4 a3 b5 bxa4 b4 Rh2 bxa3 Rh3 Be7 Rh1 Bf8 Kf2 c5 Kf3 f5 e4 Kf7 d4 Kg7 g4 a2 g5 h6 g6 c4 d6 c3 d5 c2 e5 h3 d7 h2 d6 Ra5 e6 Nf6 Bd3 Nc6 Qe1 Na7 Nd2 Nh7 Nc4 Qb6 d8N Qb3 d7 Bd6 Nh3 Rd5 Bd2 c1Q Rf1 h1N e7 Ng3 Rb1 Qcc2 Ba5 Qd2 Bc3+ Re5 Ba1 Bb7+ Nc6 Nc8 d8B Bc7 Qe4 Bd6 Na7 Bc6 Bb6 Bc7 Bf2 Bb8 Kg2 f3+ Kh2 f4 Nb5 Bd6 Nc7 Nf5 Qe1 Nh4 Bf5 h5 Qe4 Kh6 g7 Rf8 g8Q Rd8 Qg2 Rg8 Ba7 f2 B7d4 f3 Qg3 Rb5 Bh8 Rg5 Qd4 Rd5 Qb6 Bf4 Qb4 Be3 Qe5 Rg1 Qb2 Rh1+ Kg3 Re5 Rfe1 Bg5 Re3 f1B Qd4 f2 Rf3 Be2 Qdc3 Qd3 Qb2 Bc1 Qd4 Qd2 Qg4 Re3 Kf4 Rd3+ Ke5 Rd5+ Ke6 Rb5 Bg6 Rg5 Kf7 Bd1 Bf5 Be2 Re3 Bd1 Qd4 Bg4 Rg3 Qdd1 Qe5 Bf4 Rf3 Qd2 Qg7+
k2R3n/Nqr1Pbp1/B1PQ1rr1/1nKBb3/R6B/p6p/1Q1q1N2/3Nb3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 g4 Qxh4 g5 b5 axb5 Qh2 f4 f6 fxe5 fxg5 Ra3 g4 Ra4 Nc6 Ra1 Nb8 Kd2 Kd8 Kd3 Kc7 Kc4 Kb7 e4 a5 b4 d5+ Kb3 h5 c4 d3 c5 d4 Kc4 a4 b6 a3 e6 h4 e5 d2 b5 d3 Be2 g3 Kb4 g2 Nh3 g1B Nc3 Bd4 Nf2 Qg2 Qb3 d1Q Qb2 Qe1 Bg5 Ne7 Rd1 Ra6 Bf6 Ka8 b7+ Ka7 Rg1 h3 Bh4 d2 Bf1 Qd5 Rg4 Rh6 Bc4 Rd6 Bb3 Ng6 b6+ Ka6 Rf4 Nh8 Ba2 Qg2 Kc4 Nc6 b8Q Qgh1 b7 Rg6 Qc7 Ka7 b8N+ Ka8 Rg4 Na7 Nc6 Nb5 Na7 Be7 Qd7 Bf6 e7 Qb7 e8B Nc7 e6 Bfe5 e7 Rdf6 Qd5 Be6 Bb5 Bf7 Ba6 Nb5 c6 Bc5 Qe6 Bb4 Rd4 Ba5 Kc5 Qe2 Ra4 Qe1 Rc1 d1R Ra1 Rd8 Rd1 Rc8 Rd8 Qe2 Ncd1 Be1 Bd5 Qd2 Rd7 Rc7 Qd6 Qb8 Rd8 Qc8 Rd7 Qb7 Rd8+
1B2b2Q/3P3b/4qnpn/2r4R/3q1Rp1/3rNR1n/QBpk1QP1/K2bN3 b - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 e5 a4 b5 axb5 exf4 e3 h5 Ke2 a5 Ke1 a4 Be2 Bd6 Bg4 hxg4 Ba3 Bc5 Bb2 Bb6 Bc1 Ba5 bxa5 Qd7 Nc3 Qd3 Nb1 Qd8 d4 Kd7 Kd2 Ke6 Kc3 Kd5 Kb2 Ke4 h4 f5 b6 c5 d5 c3+ Ka2 f3 h5 f2 b7 f1B d6 c2 h6 f4 h7 a3 a6 c4 a7 f3 Rh4 f2 Bd2 Kd3 e4 c3 e5 Bd7 e6 Be2 e7 f1B e8R Qb6 Rh1 Nh6 Re7 Rd8 h8Q Be8 Nf3 Nd7 b8B Nf6 Qe1 Bd1 Rh5 g6 Bc7 Rac8 Bb8 Rc5 a8Q Qc6 Bf4 Qe4 Nbd2 c1N+ Kb1 Qe6 Qf2 Ne2 Rf7 Ng1 Be5 Nh3 Nc4 c2+ Ka2 Rd7 Bb2 Rd8 Rc1 Bfe2 Ka1 a2 Ne3 Rd7 Ne1+ Kd2 Qff3 Bc4 Qa6 Qf5 Rf8 Bg8 Qc4 Qe6 Qf2+ Be2 Rb1 Bh7 Rf7 Ra7 d7 Ra3 Bd4 Rd3 Rb4 Rc7 Bb2 Rc5 Qg3 Bf3 Qd5 Be2 Rf4 Bd1 Qf2+ Be2 Rf3 Nfg8 R7f4 Nf6 B2e5 Rd4 Kb2 a1Q+ Kb3 Qc3+ Ka2 Rd3 Qc4 Qb4 Bb2 Qc3 Ka1 Qd4 Qh4 Bd1 Qa2 Ng5 Qg3 Nh3 Qf2+
1B1r1R2/1NrP3N/1qrPR2b/p1N1pBR1/4q1Q1/bn1b1p1K/4k1Q1/2n5 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 f4 gxh4 f5 Bxf5 e4 Bc8 e5 Bh3 e6 Bxe6 Rh3 Bc8 Rh2 e6 Rh1 e5 Kf2 Kd7 b4 Kd6 g4 h5 Kg2 f5 d4 c5 b6 a5 b5 c4 g5 h3+ Kh2 h4 g6 f4 b7 c3 b6 c2 g7 Nf6 g8Q Nc6 b8N Bf5 b7 Ne4 Nc3 Nf2 Na4 Ra7 Qg2 Bh6 Be3 c1B Nc5 Bd3 Qdg4 Qb6 Nbd7 Ba3 b8R Rc7 Nf3 Rd8 Rc8 Bg6 Ng5 Nd3 Rb1 Nc1 Nh7 Be4 Rg1 Bd3 Kh1 h2 Nb7+ Ke7 d6+ Kf7 d5 Nd4 Q2e2 Ndb3 Kg2 h1R Ndc5 Rc6 d7 h3+ Kf3 h2 Kg2 f3+ Kh3 Ke7 Rg3 Rg1 Rb2 h1Q+ Qh2 Kf7 d6 Rc7 Rbg2 Rc6 Be2 Rd1 Rb8 Qe1 Rg1 Rd2 Qg2 Rc2 Bd4 Rc3 Bd1 Qe4 Bc2 Rh8 Re8 Rc7 Re6 Rd8 Na6 R3c6 Rh1 Qb5 Ba7 Qb6 Bb8 Bg5 Nf6 Kg6 Nac5 Kh6 Qh4+ Kg6 Nh7+ Kf5 Qh5 Kf4 Qg4+ Ke3 Bb1 Na2 Rc1 Bh6 Rc4 Qd5 Rf4 Nac1 Rf8 Qe4 Qh5 Qa7 Rg5 Qb6 Qhg4 Qc4 Kg3 Be2 Bg6 Qe4 Bf5 Bd3 Qf1 Kd2 Kh3 Ke3 Qfg1+ Ke2 Q1g2+
2K1b1Bn/2Pnpbq1/3R3q/1p2rB2/R1R1Pk2/2pQ4/1N2Qr1N/r1q2N2 b - - 0 1 legal: proof: g4 a5 h4 c5 f4 Qb6 c4 Qc7 d4 Na6 g5 Qb6 f5 Qd8 f6 Nb8 Bd2 Ra6 Bc3 Ra8 b4 cxd4 h5 g6 hxg6 Bg7 fxg7 axb4 Qc2 bxc3 Qd3 Nc6 Qd1 Nb8 Kf2 h5 Kf3 d5 Kf4 Kd7 Kf5 b5 a4 d3 e4 h4 a5 d2 a6 d4 a7 d3 c5 h3 Qf3 d1Q Nd2 h2 Ra4 Rh5 Bh3 Qf8 Nf1 d2 Qe2 Qc1 Nf3 d1B c6+ Kc7+ Ke5 Bb3 Bf5 Nh6 g8B Bd7 g7 Be8 g6 Ba2 Rg1 h1Q N3h2 Rg5 Rc4 Nd7+ Kd5 f6 Ke6 Nf7 Rg3 Qg2 Rd3 Nh8 Rd1 Qh3 Rd6 Qh6 Qd3 Rd8 a8R Rh5 Ra4 Ra8 Bf7 Ra6 g8Q Qfg7 Qh7 Ra5 Bg8 Bb3 Ne3 Ra7 Nd1 Ra6 Nf1 Ra5 Rb4 Ra1 Ra4 Ba2 Nb2 Bb3 Bg4 f5 Bh3 f4 Bf5 f3 Qe2 Kc8 c7 f2 Qd3 Qf8 Qg7 Ba2 Qgd4 Qfg7 Qe2 Rg5 Nd2 f1R Qdd3 Rf2 Nf1 Kb7 Kd5 Kc8 Kc6 Qgh7 g7 Rh5 Bh3 Re5 Bf5 Bb3 Bd5 Ba2 g8N Q7g7 Nf6 Bb3 Bg8 Ba2 Rcb4 Baf7 Ng4 Re6 Rc4 Nf6+ Kc5 Kb7 Rd5 Nd7+ Kb4 Kb6 Ngh2 Re5 Rdd4 Rc5 Rd5 Kc6 Ka5 Qb1 Rdd4 Qbc1 Rb4 Rd5 Ka6 Kd6 Kb7 Ke5 Rbc4 Kf4 Kc8 Re5 Rd6
Rk2KN2/1br2NP1/Bpp3Pb/n6q/1R5Q/b1pBnQ1b/1Q2br2/B7 b - - 0 1 legal: proof: c4 d5 f4 dxc4 e4 a5 b4 axb4 h4 g5 hxg5 Qd6 e5 Qh6 e6 Qh2 exf7+ Kxf7 f5 Ke8 Kf2 Kd8 Ke3 e5 Ke4 h5 Kd5 c3 g4 e4 a4 b3 d4 b2 f6 e3 f7 b6 g6 h4 g7 h3 a5 e2 a6 e1B a7 Ba3 f8Q+ Kd7 g5 Bh4 g6 Bf2 Qb4 Be1 Nd2 b1B Ngf3 Qf2 Bb2 h2 Bd3 Rh3 Ne4 Qd2 Ne5+ Kd8 Nd7 Nf6+ Ke6 Nc6 Kf7 Qh6 d5 Bd2 d6 Rf3 Nf8 Bh3 d7 Rc8 a8B Rf2 Nd6 Na5 Qf3 Qh5 Bb7 Ng4 Bba6 Bh6 Ra2 Ne3 Ba1 Bc2 Qb2 Bd1 Rg1 h1B Rg4 Be2 Rb4 B1g2 Nc4 c6 Ne5 Kc7 d8Q+ Kb8 Qh4 Rc7+ Ke8 Bc8 Nf7 Bb7 Rc4 Bc5 Rb4 Bh3 Bac4 Nb3 Ra7 Na5 Ba6 Be7 Rb3 Ba3 Rb5 Bg5 Rb4 Bh6 Ra8+
2Q2bbk/N1n3p1/2b2N1Q/4nB1P/Pqb2rR1/8/1BQp1Rp1/K1Nr2b1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 c5 d4 cxd4 g4 b5 cxb5 hxg4 Bd2 axb4 Bh6 Ra5 Bc1 Ra8 Kd2 Kf7 Kc2 d5 Kb2 e5 a4 e4 h4 g3 f4 g2 h5 b3 b6 d3 b7 d4 f6 e3 f5 d2 Qe2 d1B Rh2 d3 Rh3 Na6 b8Q Qe7 Rh1 Bb7 Rh4 Nh6 Na3 Kg8 Qc8 Bc6 Ra2 Nc7 Rg4 Nf7 Ka1 Ne5 Nb5 Qb4 Qc2 e2 Bb2 e1B Na7 Bf2 Ne2 Bg1 Nc1 Be2 f7+ Kh7 Qe6 Rd8 f6 Rg8 Qc8 Kh8 Qa6 Rd4 Qb6 Rf4 Qe3 Be7 f8N Bd6 Nd7 Bf8 f7 d2 Ra3 Bc4 Bd3 Rf1 Bf5 Re1 Nf6 Rd1 Bd4 b2+ Kb1 Bc5 f8Q Bd6 Qa8 Rf8 Qc8 Bc5 Rb3 Be7 Ka2 b1B+ Ka1 Ba2 Bb2 Bg8 Rc3 Bac4 Qf4 Bec5 Rf3 Rf7 Rf2 Bf8 Nh7 Rf6 Qh6 Rf7 Be6 Rf3 Bf5 Rf4 Nf6+
6rQ/n1Qr1B2/Bnb5/2K1pp1b/q4n2/4P1R1/N1bP1p1R/1nQ1Nk1B b - - 0 1 legal: proof: g4 b5 c4 g5 f4 gxf4 a4 d5 h4 dxc4 b4 a5 g5 Ba6 g6 Bh6 Ba3 Bg5 hxg5 Bb7 axb5 Bf3 b6 Bb7 b5 Bc8 Bb4 axb4 Kf2 Kd7 g7 Kd6 e3 Ke5 g6 Ke4 b7 c5 b6 h5 Rh2 e5 Rh3 c3 Rh2 c2 Qg4 c1N Bc4 b3 Ra5 h4 Bf1 b2 Bb5 h3 Ra3 c4 Ra7 Kd3 Bd7 f3 Be6 c3 Na3 b1B Qb4 c2 Qa5 Na2 Qc5 c1N Bd5 Nc3 Nc2 Nc6 b8Q Nf6 g8B Rh7 g7 Qd7 b7 N1e2 Qc7 Nf4 b8Q Bb7 Ra4 Na7 Ne2 Bc6 Qa3 Qg4 Qc1 Nd7 Qf8 f5 Bgf7 Rc8 Qh8 Nb6 g8B Ra8 Kf1 f2 Bh1 Rd8 Rc4 Rg7 Rb4 Rd7 Rc4 Bf3 Rc6 Qh4 Rg6 Bh5 Rg3 Rg5 Be6 Qg4 Bgf7 Rg8 Bed5 Qh4 Bb7 Qg4 Na3 Bc2 Ba6+ Ncb5 Nc3 Qh4 Rhg2 h2 Na2 Qg4 Nc4 Nc3 Nb2+ Ke4 Nd3 Qh4 Rg6 Kf3 Rh6 Nb1 Rg1+ Ng2 Ne1+ Kg3 Rh7 Qa4 Rh6 Kh3 Rh7 Nf4 Rg4 Ng6 Ke2 Nf4+ Kf3 Qd4 Rg7 Nfd5 Ke2 Qa4 Rg6 Bd1+ Kd3 Bb3 Bf3 h1B Rf4 Kh2 Rg3 Bg2 Rc4 Kg1 Rh4 Kf1 Rh2 Nbc8 Nb4 Bc2+ Kc4 Nf4 Bfb7 Nb6+ Kc5+ Be2 Na2 Bf3 Be8 Bh5 Bh1 Bb5 Bc8 Bc6 Bf7 Bg6 Bb7 Bh5 Ba6+
K2BQ1rb/3r2n1/1p1NrBR1/Rp2N2k/6q1/1b1P2pQ/3r2PR/2Q3nn b - - 0 1 legal: proof: c4 d5 cxd5 a6 b4 Bh3 e4 Bc8 b5 axb5 f4 f5 Bd3 g5 Be2 gxf4 exf5 h5 Bg4 hxg4 Kf2 Kf7 h4 c5 a4 e5 h5 c4 h6 f3 Ke3 c3 Ke4 c2 d3 b6 f6 Kg6 d6 f2 Kd5 f1N f7 e4 a5 e3 d7 e2 h7 e1R a6 Nc6 a7 Ng3 Qd2 Ne5 Rh2 Bg7 f8R Nf3 Kc6 Qg5 d8B Be6 Kb7 Ne7 Na3 Nh1 Nc4 g3 Ra5 Qg4 Rg8 Nf5 Nd6 Bb3 Qf4 Rc8 a8Q Re6 Qb8 Rc4 Ka8 Rd4 Bb2 Rd5 Bbf6 c1R Bh4 Rc2 Qc1 Kh5 Qc8 Bf6 Rg6 Rg8 Qb8 Rd2 h8Q+ Nh6 Qh7 Bh8 Qd7 Nf5 Qe8 Ba4 Qbc8 Bb3 Qcd7 Ng7 Qdc8 Ng5 Nf3 Nh3 Ne5 Ng1 Qf1 Qf3 Qcc1 Qg4 Qf5+ Qg5 Qh3 Qg4 Nf5 Rd7 Nd6 Rf2 Qf7 Rc2 Qe8 Rd2 Bhf6+
bn2Q1K1/P1R3P1/2p5/nr1Bn3/4Np1N/5qpr/Q3NBb1/b2b1RRk b - - 0 1 illegal: No possible last move
rb3N2/pN1K2n1/BNn1Rkbr/8/1Q2Bpn1/p2RP2b/nPR5/Q4q2 b - - 0 1 legal: proof: c4 b5 f4 e5 a4 bxa4 d4 exf4 h4 c5 d5 g5 hxg5 d6 Be3 Bh3 Bd4 cxd4 c5 Be6 cxd6 Bc8 Kd2 f5 Kd3 Kf7 Kc4 h5 Kc5 a3 g4 f3 g6+ Kg7 e3 d3 g5 h4 Ne2 d2 Nf4 h3 Ba6 h2 Nc3 f2 Rc1 f1N Na4 Qe7 Rc2 Nh6 Nb6 Ng3 Ne6+ Kg8 g7 Kf7 g8B+ Kg6 Qa1 d1N Bh7+ Kf7 g6+ Kf6 g7 Ng4 g8Q Nc3 Bg6 f4 Be4 Qg7 Rhc1 Be7 Nf8 h1B Qh7 Bd8 d7 Na2 d6 Bc7 d8N Nc6 d7 Nf5 Nb7 Bb8 d8R Qc7 Rd7 Ng7 Rd3 Bf5 Qg8 Bg6 Qb3 Rh6 Qb4 Bg2 Rh1 Qc8 Rh5 Bh3 Re5 Na5+ Kd5 Qc3 Re7 Qe1 Re8 Qf1 Kc5 Nb3+ Kc6 Nd4+ Kd7 Nc6 Re6+
5BB1/2r1bq2/1P4N1/1K2R3/1pnR1nP1/BQN5/1pkbp1N1/Qb1q1b1r b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 exd5 b5 c4 Qd7 Qb3 axb4 Qc2 b3 Qd1 b4 a5 f5 a6 Qb5 a7 Nd7 cxb5 Rb8 a8Q Nb6 Qb7 Ra8 Qa6 Nd7 Qe6 Nb8 Qe4 fxe4 Ke2 Kd7 f4 Kd6 d4 e5 g4 h5 f5 c5 b6 h3 f6 h4 f7 c4 Bd2 h2 Bg2 e3 Qc1 e4 Bh3 c3 Bf1 h3 Ra2 c2 Ra4 Ne7 Ra7 Bf5 Nf3 Nbc6 Ne1 Ng6 Re7 Ra7 Nc3 Na5 Ng2 Rc7 Re5 Be7 f8B Nc4 Qa1 c1Q Rg1 Qb1 Bc1 h1Q Ba3 b2 Qa2 h2 Qa1 Kd7 d6 Kc6 d7 Qa2 d5+ Kc5 d8N Kd4 d6 Rh5 d7 Nf4+ Kd1 e2+ Kc2 e1B Nf7 Bd2 Nh8 Rh4 Ng6 e3+ Bd3 e2 Rd1 Qf1 Be4 Qb1+ Kb3 h1B Bd5 Kd3 Ka4 Kc2 d8Q Qf3 Kb5 Rh5 Rf1 Qd1 Bg8 Be4 Qd5 Bd3 N2h4 Bg2 Rh1 Bf1 Ng2 Bf5 Rh3 Qf2 Rd3 Rh1 Rd4 Qf3 Qc6 Qd5+ Qc5 Qf7 Qd5 Kb3 Qe6 Bb1 Qd5 Kc2 Qe6 Ne3 Qea2 Nc4 Qb3+
1nN1bb2/3bBpb1/2B2rQP/2kq3P/rpnNR2p/R7/1Q1Q3K/1N1q4 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 h4 g6 h5 h6 Qb3 g5 Qh3 Nd7 Qh4 gxh4 g5 Nb8 gxh6 Bf5 Rh3 Bg4 Rh1 Bc8 Kf2 Ke7 Kg2 Kd6 d4 c5 a4 b5 e4 b3 e5+ Ke7 e6 Kd6 a5 b2 e7 b4 e8Q c4 a6 c3 a7 f3+ Kh2 c2 Ra3 f2 Qe6+ Kc7 d6+ Kb6 d5 Bd7 Qg6 Qg5 Nf3 Ne7 Bg2 f1B Nd4 Bfb5 Re1 Rg8 Re4 Nec6 Bf3 Qf5 Bg5 c1B Be7 Ne5 Bh1 Be8 d7+ Bc6 d8N Nc4 d6 Bcd7 Nb7 Qd5 Bf3 Bg5 Bg2 Bf6 Bh1 Bc6 d7 B6g7 Nd6 Kc5 d8Q Bcd7 Nc8+ Nd6 Nc3 b1Q Bg2 Qd1 Nb1 Bf5 Bf1 Bfd7 Bb5 Bf6 Bc6 Rg7 Qg3 Rg6 Qb3 B6g7 Qb2 Bh3 Qd7 Rf6 Qg4 Na6 Qg6 Bhd7 Bd8 Nc4 Qd2 Rb8 a8Q Rb7 Qb8 Ra7 Qe5 Nb8 Be7+ Rd6 Bg5 Ra4 Qef6 Re6 Qff2 Rd6 Qb2 Rf6 Qfd2 Rf1 Bd8 Rf6 Be7+
3N2qQ/R5r1/3Pnn2/1pPRbq1N/3n3B/4Nrr1/K2pk1pq/1BQR4 b - - 0 1 legal: proof: d4 a5 g4 d5 f4 h5 gxh5 e5 e4 exf4 b4 axb4 Nf3 c5 Ng1 Be6 Qg4 cxd4 Qd1 d3 Be3 d4 Bc1 Bd5 exd5 Bc5 Qe2+ Be7 Qd1 Bf8 Kd2 Kd7 a4 Kd6 c4 Ke5 h4 Ke4 c5 b5 a5 g5 h6 f5 h5 b3 d6 f3 a6 g4 h7 f2 a7 f4 h6 f3 Ra3 b2 Nh3 g3 Be2 f1Q Rb3 f2 Qe1 g2 Qd1 Na6 Bh5 Nc7 Bg4 Qg1 Na3 f1R Be6 b1Q Nf4 Qh2 Nc2 Bg7 Nh5 Rf3 Ne3 Be5 Qe1 Rc8 a8R Nf6 Ra7 Rg8 h8Q Rgg3 h7 Qg8 Kd1 d2 Rd3 Re8 Ba2 Re7 Qf1 Reg7 Qg1 Qb4 Kc2 d1N Bb1 Nc3 Bd2 Ne6 Be1 Qc4 Kb2 Qd5 Bf2 Ne2 Qc1 Qc6 Re1 Qcc8 Red1 Qd7 R3d2+ d3+ Ka2 N2d4 Be1 Rh3 Bh4 Rfg3 Rc2 Kf3 Rc3 d2 Rd3 Nc6 Rd5 Ncd4 Ra6 Ke2 Ra7 Qgf7 Qf8 Qc8 h8N Qg8 Nf7 Rf3 Nd8 Rhg3 Qe8 Qd7 Qg6 Qdf7 Qh6 Qg6 Qh7 Qf5 Qh8
B5Kn/2PQ4/Nr5k/p1p1bRnN/2Pp1R2/4Q1qB/1qn3b1/4NqbQ b - - 0 1 legal: proof: d4 a5 h4 c5 f4 g5 e4 gxh4 a4 b5 axb5 e5 d5 exf4 Bd2 Ra6 Be3 Rc6 dxc6 fxe3 Ke2 h5 Kf3 f5 Kf4 Kf7 Ke5 Kg6 g4 d5 c4 d4 b4 e2 g5 e1B b6 h3 c7 h2 b5 h4 b7 f4 b6 f3 Nd2 h3 Ne2 f2 Nf3 Bd7 Nf4+ Kg7 g6 Bc6 Ke6 Bd6 e5 Qg5 Nh5+ Kh6 Kf7 Ne7 e6 Qg3 g7 Ng6 g8B Be5 e7 Na6 b8N Nb4 e8Q Nc2 b7 Be4 Rg1 h1N Qd7 h2 Bh3 f1Q Na6 Bf2 Ne1 Bg2 b8Q Be3+ Qf3 Nf2 Qb3 h1Q Qd3 Qe2 Rf1 Ne4 Qb3 Bg1 Qbe3+ Bf4 Bh7 Rb8 Rc1 Rb6 Kg8 Ng5 Rd1 Nh4 Be4 Ng6 Ba8 Nh8 Qfe4 Bd6 Rf5 Be5 Rd2 Qf1 Rdf2 Qhh2 R2f3 Qgf2 Qh4 Qhg3 R3f4 Qd2 Bg4 Qc1 Qh1 Qb2 Bh3
QN3b2/1Q1PQ1bN/1b1Pp3/nr1k2Nr/R5K1/1p1bp1Br/3qR3/b1B5 b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b4 axb4 g4 hxg4 f4 f5 e5 Nd7 Bg2 Rh4 Be4 fxe4 f5 Ndf6 exf6 Rh8 Ke2 Kd7 a4 Kd6 d4 b5 h4 c5 a5 g5 h5 e3 a6 g3 Kf3 c4 h6 b3 h7 g2 a7 c3 f7 b2 f6 b4 Qe2 c2 Na3 b1R Nh3 g1B Qb5 Ba6 Qb7 Bd3 Rh2 b3 Rf2 Rb8 a8Q Qa5 Ra2 Qd2 Kg4 Bh2 Rg2 Be5 Re2 Bg7 f8N Rb2 Qba7 Rb5 f7 Rb1 Q7b7 Ra1 Bb2 c1B Nc2 Bef6 Ra7 Raa5 Nb4 Be5 Nc6 Bef6 Ba1 Ba3 Bb2 Bc5 Bc1 Bb6 Qbc8 e6 Qcb7 Ne7 Kg3 g4 Ng5 Be5+ Kh4 g3 Kg4 g2 Ra6 Rg8 h8B g1B Nfh7 Bgh2 f8Q Bef6 Qfe8 Bhe5 Qf7 Bf8 Ra7 B6g7 Qf6 Rc5 Qf7 Rab5 Ra4 Bh6 Bf6 Bhg7 Qfe8 Rh8 Qf7 Ng6 Bd8 Ne7 Bc7+ Kd7 d6 Bef6 Ne4 Rh5 d5 Ba1 Qf6 Ng6 Neg5 Ne5+ Kg3 Nc4 Kg4 Rh3 Nd8 Be7 Nf8+ Ke8 Bb8 R8h6 Nfh7 Qb4 Bc7 Bbd4 Ba5 Qe1 Bc3 Bb6 Be5 R6h5 Bg3 Bh6 Qg7 Bf8 Qgc7 Qc3 d7+ Ke7 Qe5 Na5 Qd4 Bhg7 Qb4+ Bc5 Qa3 Qd2 Qb4 Bge5 Nc6+ Kd6 Qf4 Ba7 Qf6 Bb6 Qf7 Kc5 d6 Kd5 Qe7 Beg7 Nb8+
rr2R1r1/2Q2B2/2P1KNrP/1n2N1p1/1qRR1kBb/pN4qQ/2n1p3/r7 b - - 0 1 legal: proof: d4 b5 g4 d5 f4 c5 e4 g5 a4 gxf4 g5 h6 Be3 Bd7 Bf2 Bc6 axb5 cxd4 g6 d3 Bh4 d4 Bg5 Bd5 exd5 hxg5 Kf2 Kd7 Kf3 Kd6 Kg4 Ke5 b4 f5+ Kf3 a5 c4 a4 h4 d2 g7 a3 h5 d3 b6 Nh6 g8B Na6 b7 Nf7 b8R Nd6 h6 Nb5 d6 Qc7 Bd5 Rg8 Qb3 d1R d7 d2 Nc3 Rb1 d8Q d1R Bf7 Rd7 c5 e6 c6 Bc5 Qe7 Bf2 Re8 Bh4 Bh3 Rb2 Rd1 Rb1 Ke2 f3+ Ke3 f2 Bg4 f1Q Ne4 Qe1+ Ne2 f4+ Kf3 Qb6 Rd4 Qb7 Nc1 Qg3+ Ke2 f3+ Kd3 f2+ Kc4 f1R Qd8 Qf2 Qh3 Kf4 Nb3 e5 Qc7 Qg3 Rh2 Ra1 Rc2 Rfb1 Rc3 Re7 Kd5 Qb8 Rcc4 Rd7+ Nd6+ e4 Ke6 Rb2 Bfh5 Rdg7 Bf7 Nc3 b5 Nb4 b6 Nc2 b7 Nb5 Re7 Qf8 b8N Rbb1 Nd7 Qb8 Bgh5 Qb6 Bf3 Qa5 Bg4 Qb4 Re8 Rb2 Rd3 Rbb1 Ne5 Rb2 Rc5 e3 Ne4 e2 Rc4 Rbb1 Re3 Rd1 Rec3 Rdd8 Rd4 Rdb8 Rcc4 Rg6+ Nf6+
K7/2kpr1P1/R2np3/q2B4/5N2/p1NQnbrP/qnQR2B1/3nB1Rn b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 fxe4 Ra5 g5 Ra1 Bh6 Ra5 hxg4 Ra1 g3 Bd2 g4 Bc1 Bg5 fxg5 Kf7 Ra5 Kf8 Ra1 Ke8 Ke2 a5 c4 g2 b4 e6 b6 a4 c5 a3 c6 g3 g6 d3+ Ke3 d2 Kd4 e3 Kc5 e2 g7 e1N c7 Nh6 b7 Na6+ Kb6 Nf7 b8R Rh3 b5 Bb7 Ra2 Nc2 Nc3 Nd6 Nge2 g1N Nf4 Ne3 Bg2 Ne2 Rg1 Nc5 Qc2 d1N Bd2 Bf3 Be1 Nd3 Rb7 N3b2 Ra7 Qg5 c8B Kd8 Ra6 Rb8+ Ka7 Kc7 Bb7 Re8 Be4 Re7 Bd5 Qh5 Ka8 Qg5 Bh1 g2 Qd3 Ng3 b6+ Kd8 b7 Kc7 Bc4 Qa5 Bd5 Na4 Rd2 Nab2 Rf1 g1Q Bg2 Qf2 Rg1 Nh1 Qc2 Rg3 h3 Qe2 Qd3 Nc8 Qc2 Qc4 Qd3 Qa2 b8Q+ Kd8 Qb7 Nd6 Qb3 Kc7 Qbc2
1q1B3r/1RBN3N/Qn3n2/qb1pnPPR/6r1/1k3N1K/pQ2R1p1/q4q2 b - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 Nh3 cxd4 Ng1 e5 Bd2 e4 Bf4 Bc5 Bc1 Bf8 h4 g5 Bg2 g3 Bh3 Bh6 Bf5 g4 Bg6+ Ke7 Bf5 Bg5 hxg5 Ke8 Be6 Qc7 Bc4 Qd8 Bd3 exd3 Kf1 Kf7 Kg2 Ke6 e4 d5 c4 a5 b4 h5 f4 h4 e5 a4 c5 a3 c6 d2 b6 d3 c7 a2 b7 Ra4 b5 Nd7 b8B Nb6 Qe2 d1Q Nd2 Ba6 Ba3 Qb1 Be7 Nf6 Ne4 d2 Nf3 d1Q Qb2 Qe1 Rh3 Qa5 f5+ Kd7 Rh1 Qd3 Rab1 h3+ Kg1 h2+ Kg2 Qg8 Bd8 Qc4 c8N Rb4 Bbc7 Qd3 Rbe1 Qb1 Re2 Qa1 Rc1 h1N Rc3 Nf2 e6+ Ke8 e7 Kd7 e8R Nd3 Rb3 Ne5 Qa3 Qf8 Rb1 Qd6 Rg8 Ra4 Rg6 Qdb4 Rh6 Qf8 Rh5 Qe8 Kh1 g2+ Kh2 g3+ Kh3 g1Q Rbb2 g2 Rb3 Na8 b6 Kc6 b7 Bb5 b8Q Qgf1 Nb6 Rc4 Nd7 Nb6 Qb2 Rd4 Qa7 Ra4 Nd6 Rg4 Qa6 Qf8 Ne8 Qfb4 Nf8 Kc5 Nd7+ Kc4 Qa3 Ng8 Nef6 Qd6 Nh7 Nf6 Qb2 Qf8 Be7 Qb8 Bed8 Na4 Qc8 Bc6 Rb7 Nb6 Ra7 Ba4 Qa6+ Bb5 Qd4+ Kb3 Rb7 Qa4 Qd2 Qa5 Qb2+
3Q4/1K2b1r1/1B1R4/pRbrq2k/PNP5/2q1q1Rb/1Qb2p1p/Nn2N1B1 b - - 0 1 legal: proof: b3 c5 Ba3 d5 Bc1 c4 bxc4 d4 f4 e5 c3 dxc3 Qc2 exf4 Qb3 g5 Qd1 g4 h4 Qa5 h5 Qd5 g3 Qd6 Bg2 Nd7 Bf3 gxf3 g4 Ne5 g5 Ng6 hxg6 Qd8 Kf2 h5 e4 a5 d4 b5 a4 f5 d5 c2 d6 h4 e5 h3 g7 Kf7 d7 Kg6 e6 h2 e7 b4 e8N b3 Nd2 b2 Nf1 b1B Ra2 Rh5 Be3 c1B Rb2 Qc7 d8B Be7 Rb5 Qe5 Bdb6 Ra7 Nf6 Bc2 Nd5 Bca3 Qb1 Nf6 Qb2 Bac5 Nb4 Nd5 Nd2 Nc3 Nb3 Nb1 Na1 Rd7 Bd4 Rd5 Be3 Rh7 g8Q+ Kh5 g6 Rg7 Qd8 Be6 Ne2 Bc8 Nc1 Bd7 Rd1 Qc3 Kf1 f2 Kg2 f3+ Kg3 f1Q Kf4 f2 Ncd3 Qh3 Ne1 f1Q+ Bf2 Rh7 g7 Qe2 g8R Rg7 Bg1 Bc8 Rd3 Qe6 Rg3 Qce5+ Kf3 f4 Rf8 Qh6 Rf6 Qh8 Rd6 Qc3+ Nbd3 Bd7 Ke4 f3 Kf4 f2 Nb4 Rd3 Ke4 Rd1+ Rgd3 Qe3+ Kd5 Bh3 Kc6 Qce5 Rb3 Rd5 Rc3 Qhh6 Rd3 Qhf6 Kb7 Qc3 Na6 Qfe5 Nb4 Qe2 Rf3 Q2e3 Rg3
Br1q4/r1Qq2BQ/b3nrQp/3R2pk/3P1nNp/K2N3P/3B2n1/R6r b - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 axb5 f6 g5 fxg5 d4 e6 d5 Qf6 e3 Qd8 Qd4 Bc5 Qh4 Bd4 exd4 gxh4 Kd2 Kf7 Kc2 Kg6 b4 c5 Kb2 a5 f4 e5 b6 a4 b7 e4 f5+ Kh5 h3 g5 b5 h6 b6 c3+ Ka3 c2 f6 c4 d6 c3 f7 e3 f8B e2 d7 e1N Bg7 Nc6 b8Q Ra5 b7 Rf5 Qd6 Nge7 b8Q Ng6 Qa7 Nf4 Nf3 Ba6 Bg2 Rf6 Bd2 c1R Ne5 c2 Ng4 Re8 Bf3 Neg2 Nc3 Rb1 Nd1 c1Q+ Nb2 Re7 Ka2 a3 Nd3 Rb8 Rf1 Qc5 Rfb1 Qf5 Rb5 Re1 Kb3 a2 Ka3 Rh1 Qe6 Ne7 Bc6 Neg6 Ba8 Nf8 Qeb6 N8e6 Rd5 Qg8 d8Q Qfh7 Qde7 Qd8 Qb1 Qf5 Qec7 Qh7 Bf8 Qhd7 Bg7 Q8e7+ Nb4 Qb5 Qac5 Qf8 Qh7 Bb7 Rf1 a1R+ Kb2 Qc6 Qcc2 Ra7 Ra1 Ba6 Ka3 Qd8 Qce4 Qb5 Nd3 Qbd7 Qeg6+
nqQ4r/5nQp/2P3p1/2pnP1N1/1BN1KBbq/6k1/5RnR/1Q3bbR b - - 0 1 illegal: No proof kernel
1nq3b1/1R1qrP2/1NbQ1PRq/K2Q1bp1/2b2r2/Rp2p1BB/N7/k1Q5 b - - 0 1 legal: proof: d4 a5 e4 c5 f4 cxd4 b4 axb4 g3 f5 Bg2 fxe4 Bh3 Qc7 Bf1 Qd8 h4 Nc6 h5 Ne5 f5 g5 Ne2 Bg7 Ng1 Ng6 hxg6 Bf6 Bh3 Be5 Bf1 Bf4 gxf4 Qb6 Qd3 Qa5 Qd1 Qd8 Kd2 e5 c4 Ke7 a4 Kd6 a5 Kc5 f6 h5 a6 b5 f7 d5 g7 h4 f5 d3 a7 Kd4 f6 b3 c5 b2 c6 e3+ Ke1 h3 c7 h2 Qe2 e4 Qg4 b4 Qg2 e2 Kd2 b3 Ra2 Ne7 g8Q Rh4 Nh3 Bf5 c8Q Rf4 Qg3 Nc6 Ra5 Nb8 Na3 b1B Qc7 Qc8 Nf2 Bh7 Qg7 Bg8 Bh3 Bc2 Rd1 h1B Qh8 Bf3 Nc4 Bg2 Ke1 Kc3 Ra3 d4 Qd6 Bh1 Nb6 Bf3 Be3 Kb2 Kd2 Bg2 Qd5 Bf1 Ra4 Bb1 Rb4 Ka1 Rc1 Bg2 Nd1 Bf3 Rc3 Bc2 Bf2 e1Q+ Kc1 Qh1 Kd2 Bb1 Rcc4 Be2 Nc3 Bf1 Na2 e3+ Kc1 Qh2 Rb5 Bc2 Ra4 Bg2 Ra3 Bh1 Qe5 Bc6 Qd5 Bb1 Qg1 Qh1 Bg3 d2+ Kd1 Bf5 Ke2+ Kb2 Qd6 Qh2+ Qg2 Ka1 Qh5 Qh1 Qe4 d1B+ Kd3 Bf3 Kc4 d3 Kb4 d2 Ka5 d1Q Qed5 Be2 Qhf3 Bc4 Qf1 Qf3 Rb4 Qh5 Qg1 Qh6 Qe1 Nd7 Qed2 Rb8 a8R Rb7 Rb8 Rc7 Rb7 Nb8 Qc1+ Bb1 Rb5 Re7 Rb4 Qdg4 Rb5 Qgd7 Rc5 B4b5 Rc2 Bd3 Rh2 Bc4 Bg4 Qh7 Rh6 Qh8 Rg6 Qh6 Qcd2 Bc2 Bh3 Bf5 Qc1+
2rq4/1R3pN1/3RQPbP/1r2Q1p1/NQ2q2B/3kN2p/r3n2K/2bq1qB1 b - - 0 1 legal: proof: d4 c5 a4 b5 axb5 h5 g4 hxg4 e4 d5 h4 Na6 Bh3 gxh3 Bf4 Nc7 Bc1 cxd4 Qe2 d3 Qd2 d4 Qd1 Nd5 exd5 Rh7 Nf3 Rh6 Ng1 Rh8 Kf1 Kd7 b4 Kd6 c4 Ke5 f4+ Ke4 d6 g5 c5 a5 c6 e5 h5 a4 c7 d2 b6 a3 f5 d3 b5 a2 h6 Qe7 f6 Ra5 d7 Qd8 b7 Bg7 b8B Ra6 b6 Ra3 b7 Ne7 Ne2 Ra7 Kg1 Ng6 Qb3 d1Q+ Kh2 d2 Qb4+ Kd3 Ng3 e4 Nf5 e3 Nc3 e2 Na4 e1Q Rb1 a1R Ne3 Ra5 Ba7 Re5 b8Q Nf4 Bc5 Ba6 c8Q Ne2 Rb2 Rd5 Qe5 Ra2 Qc6 Bb7 Qce6 Bf8 Rb1 Qf1 Bd4 Qe7 d8N Rb5 Bcb2 Ba8 Bbc3 Be4 Rb3 Qb1 Rg1 d1Q Be1+ Nc3+ Rg2 Bg6 Bh4 Qbc2 Rb1 Ne2 Bb6 Rg8 Rg4 Rh8 Rc4 Qe8 Rc6 Qc4 Bc5 Qe4 Ba7 Bc5 Rd6+ Bd4 Qd7 Qf8 Ne6 Qd8 Ng7 Re8 Qde6 Rh8 Nd5 Bb2 Bg1 Bc1 Rb2 Qd7 Rb1 Rc8 Rb2 Qd8 Ne3+ Qd5 Rc2 Qd4 Rc7 Qd5 Rb7 Qd4 Ra6 Qe4 Rd6+
NrR1Rq2/n1Qp3K/1P2rQ1b/n1P2Nr1/2p3qB/Bn2B1n1/1p4N1/7k b - - 0 1 illegal: No extended proof kernel
qQ3K2/2pp1Rr1/r1PB1q2/1B1b1qp1/2Qr2r1/2R1N3/PQ1N1k2/bB4n1 b - - 0 1 legal: proof: d4 e5 b4 a5 g4 axb4 f4 f5 d5 h5 fxe5 Na6 e3 Nc5 e4 Ne6 dxe6 fxe4 Bb5 hxg4 Bc4 Nh6 Bf1 Ng8 Kf2 Ke7 Kg3 g5 h4 b5 c4 e3 c5 b3 h5 e2 h6 e1R h7 b4 Nd2 b2 Nb3 b1Q Rh3 Qb2 Be2 Nf6 Qd3 Bg7 Nf3 Bb7 Nbd4 b3 Nc2 Bd5 Bf4 Rg8 h8Q Ra6 Rh7 Rc1 c6 Rd1 Qb5 Qa8 Rc1 Bc4 Bd3 Nd5 Qa4 Nc3 Bf1 Rd6 Nd2 Qa1 Qb5 b2 Qc5 Kf8 e7+ Kf7 e8B+ Ke6 Bg6 b1Q Bfd3 Bf6 Rf7 Bb3 Qb4 Kd5 e6 Bd4 Qf6 Rg7 e7 Be5 e8Q Ne2+ Kh2 g3+ Kh3 g2 Kg4 g1R+ Kf5 Bc3 Bb5 Rg4 Qb8 Ng1 Qe4+ Kc5 Qfe5+ Rd5 Kf6 Bd4 Ke7 Qc3 Qh8 Qf3 Bf5 Ba1 Qb2 Qc3 Qd8 Qf6+ Kf8 Rd3 Qb8 Bd5 Na3+ Qc2 Nac4 Qb1 Rc3 Qc2 Qe2 Kd4 Bd6 Qb1 Nb6 Qc2 Qf1 Ke3 Qf4+ Ke2 Nbc4 Qb1 Qe4+ Kf2 Ne3 Qc2 Qeb4 Rdd4 Qc4 Qe4 Bh7 Qef3 Bd3 Q3f5 Bb1
3r1Qq1/p3RNb1/q1n2bP1/kP6/2K1pnN1/b5p1/1Q2Bn1b/1NB1Q2R b - - 0 1 legal: proof: g4 d5 e4 b5 f4 f5 a4 fxe4 c4 dxc4 f5 bxa4 h3 g5 f6 Bf5 Qf3 Na6 gxf5 g4 Qe2 g3 Qd1 Rb8 Ra2 Rb3 Ra1 Rf3 Qc2 Rf4 Qd1 Rg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 Ke2 Kd7 d4 Kc6 b4 Kb6 d5 e5 g5 c5 b5 h5 d6 a3 g6 c3 d7 c4 f7 h4 f6 c2 Qe1 c3 Bb2 c1Q Nh3 c2 Qd2 e3 Kd3 e2 Bd4+ Nc5+ Kc3 e1B Rg1 a2 Nf4 e4 Nh5 h3 Na3 h2 Bd3 h1N Rf1 Ka5 Be2 Ne6 Be3 Nf4 Nb1 Bg7 f8Q Bf2 Qe1 Ne7 Kc4+ Qd2 f7 c1B Nf6 Nc6 Qg8 Bg1 f8Q Ba3 Ng4 Bh2 Rf2 Qb6 d8N Qa6 Nf7 Bf6 Rf1 Nf2 Qgg7 Rg8 Qc5 Rd8 Qcf8 Bg5 Qb2 Bf6 Nc3 Qd7 Bc1 Qdc8 Rb1 a1B Rh1 Bg1 Rh5 Bh2 Re5 Qf5 Re7 Qh5 Bd2 Qh8 Rd1 Qg7 Bc1 Qg8 Nb1+ Bb4 Qd4 Bac3 Qdd2 Ba3 Qb2 Bg7 Qed2 Bf6 Rh1 Bg7 Qd1 Bcf6 Qe1+
QK1n1q2/r5br/N2BrRN1/2pP2rB/4n1Q1/1krp4/6Pp/3RBQ1r b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 c4 gxh4 Rh2 d5 Rh1 d4 Nh3 Bb7 Ng1 Bd5 cxd5 Bb4 Kf2 Bxd2 Kf3 Ke7 Ke4 Kd6 b4 h5 b6 f5+ Kd3 a5 Kc4 a4 Kb5 f3 e4 h3 b7 d3 Qb3 f2 Ra2 h4 Qc4 a3 Nc3 h2 Nge2 h3 Nf4 Nc6 b8B Qf8 Ng6 f4 Na4 f3 Be2 f1R Nc5 f2 Na6 Re1 Bh5 Bc3 Bd2 f1R Rg1 Rc1 Be1 h1R Rf2 a2 Rf7 Nd8 Rf6+ Ne6 Qd4 a1R Qf2 h2 e5+ Kd7 Qf3 Ra7 Qg4 Rf5 Rf1 c5 Kb6 Rh7 b5 Nd8 Bd6 Ra4 Rg1 Re4 e6+ Kc8 e7 Re6 e8Q Rg5 Qf7 Be5 Bd2 Rc3 Rd1 Bd4 Be1 Be5 Rf2 Bg7 Qff3 Kd7 Qe2 Nf6 Qf1 Ne4 Rf6 Rc1 Ka5 Rc2 b6 Rc3 b7 Rc1 b8Q Rc3 Qb5+ Kc8 Qe8 Kb7 Kb5 Nc6 Ka4 Kb6 Qa8 Nd8 Bf2 Rc2 Be1 Rc1 Kb3 Kb5 Ka3 Kc4 Ka4 Rc3 Ka5 Nb7+ Kb6 Kb3 Kc7 Nd8+ Kb8
1b3QR1/1P6/2Npn2Q/N1brQ1np/6bK/1p2kB1R/Rbb4P/2q2Bb1 b - - 0 1 legal: proof: d4 b5 b4 c5 e4 f6 e5 e6 d5 exd5 e6 d4 a4 cxb4 axb5 Qc7 Qe2 Qa5 Qd1 Qd8 f4 a5 g4 Bb7 g5 Bc8 f5 Nc6 Bf4 Nb8 Be5 fxe5 Qg4 Ra6 Qf3 Rc6 Qg4 Rc3 Qd1 Rh3 Nf3 Rh6 Ng1 Rf6 gxf6 Qc7 Na3 Qb6 Nb1 Qd8 Kf2 h5 Kg3 g5 c4 b3 f7+ Ke7 b6 Kf6 c5 g4 c6 Kg5 f6 e4 e7 e3 e8R d3 b7 e2 c7 e1B+ Kg2 Kf4 Na3 a4 Nc4 d2 Re7 a3 Re6 a2 Ne5 g3 Kh3 g2 Nc4 Bc5 f8Q Nh6 f7 Nc6 Nb2 Qg5 Nf3 g1B Re3 Bg3 Qe1 d1B Nd4 Bc2 Nc4 Nd8 Nc6 Ne6 N4a5 Rg8 Qg7 Rd8 f8Q+ Nf7 Rd3 Qh6 Qec3 Qg5 Qh6 Ke4 Qcf6 Qc1 Qf6h8 Bgd6 Kh4 Nfg5 Rh3 Be5 Be2 Bf4 Bf3+ Ke3 Qe5+ Kd3 Rb1 a1B Rb2 Kd2 Ra2 Bb2 Qeg7 Bgd4 Re1 Bg1 Re4 Bfd6 Rg4 Ke3 Qgh8 Ba7 Qh8g7 Bb8 Qgf6 Bc5 Qf5 d6 Qd5 Bd7 c8B Re8 Qdf5 Nf4 Q5f6 Re5 Rgg3 Rd5 Qe5+ Ne4 Rg8 Bg4 Qeh8 Ng5 Qe5+ Kd2 Bf5 Nfe6 B5e4 Ke3 Bg2+ Ke2 Bef3+ Kd3 Bf1+ Kd2 Qeg7 Ke3 Qe5+
1B4nb/2pK1NQ1/3Q1b2/B2P1R2/4br1n/2pr2R1/pkPR2n1/1bQ3Nr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 a4 b5 axb5 e5 Ra3 exf4 Ra2 Ke7 Ra1 Ke8 Nf3 a4 Bg2 d5 Ng1 Qe7 Be4 Qc5 Bd3 Qa7 Bc4 Qa5 bxa5 dxc4 Kf2 Ke7 e4 Kf6 h4 Ke5 b6 Kd4 b7 g5 h5 f5 h6 g3+ Kf3 g4+ Ke2 a3 d3 g2 e5 f3+ Kd2 f4 e6 f2 a6 f1R e7 f3 e8Q g3 h7 f2 a7 Bg7 Nh3 g1B Rh2 g2 Qc6 Bf5 Ng5 Nd7 Nf7 Bf6 Nc3 Nb6 Qd6+ Nd5 Ra2 Rf8 a8R Rd8 b8B Be4 Ra5 Rd7 Ke2 Rd8 Bd2 Rd7 Qe7 Ne3 Qc1 Rd5 Ra1 Rd8 Rh3 Bh2 Be1 Bhe5 Rg3 g1N+ Kd2 Rd5 Qd6 Nf3+ Ke2 Ng2 Rc5 Nh6 Ra5 Rf8 h8Q Ng8 Qg7 Rh1 Rb1 f1B+ Kf2 Bg6 Bd2 Nfh4 Rbb5 Nf5 Kf3 Nfh4+ Kg4 Be4 Qh6 Bh8 Qg7 Bf6 Rb3 Ne3+ Kf4 Bh3 Rg2 Be6 Be1 Nhf5 Rd2 Ng2+ Kg4 Ke3 Ne2 Nfh4+ Kg3 Rd4 Rf5 Rd5 Ng1 Kd4 Qc6 Rd7 Kg4 Rdd8 Qd6+ B6d5 Rb5 Kc3 Rf3 Be6+ Rbf5 B6d5 Rg3 Be6 Qd1 Kb2 d4 Rd7 Rdd3 B6d5 Ba5 c3 Rd2 Ba2 Qe1 Bb1 d5 a2 Qf1 Re7 Qd1 Bd3 Qf1 Re3 Qff4 Be4 Qfg5 Rd3 Q5h6 Ne1 Kf4 Be7 Ke5 Neg2 Ke6 Bf6 Kd7 Re8 Rff3 Re5 Qe3 Rf5 Qe1 Rf4 Qd1 Rg4 Rf5 Rf4 Qc1+
R4NK1/1n3R1B/Q3R1bp/Bnb4P/k1P2N1p/3b2pb/n2BQ2n/3r1q2 b - - 0 1 legal: proof: d4 a5 h4 d5 e4 b5 a4 c5 axb5 f6 g4 Ra7 g5 fxg5 h5 Rd7 Qe2 cxd4 Qg4 d3 Qg3 d4 Qh4 Rd5 exd5 gxh4 Kd2 Kd7 f4 e5 b4 g5 b6 h6 b7 g4 f5 e4 d6 Kc6 d7 Kb5 f6 g3 f7 a4 c3 a3 c4+ Ka4 b5 a2 b6 Nc6 b8R Qf6 d8B Nge7 b7 Na7 Ne2 Bh3 Ba5 Nd5 Nf4 Nb5 Ne6 Ndc3 Ra8 Bc5 b8Q Rd8 f8Q Qf2+ Be2 Qf1 Qf6 Rd7 Qe8 Rd8 Na3 Rd6 Rb1 a1N Nc2 Na2 Ne1 Rd5 Nf8 e3+ Kd1 d2 Qa6 Rd7 Bd3 Nb3 Kc2 e2 Bh7 d1B+ Kd3 Rd6 Ke4 d3 Ke5 d2 Rh2 Bc2 Ng2 d1B Bcd2 e1N Nf4 Bg6 Rf2 Bdc2 Re2 Rd4 Kf6 Bcd3 Kg7 Nf3 Kg8 Nh2 Rbe1 Rd6 Re7 Rd4 R1e6 Rd5 Bb6+ Na5 Rf7 Re5 Rc6 Re1 Qe2 Rd1 Bc7 Kb3 Bd8 Nb7 B8a5 Ka4 Re6
r1qBBrq1/pQN5/3NBP1r/KprN1Rq1/6n1/2p3P1/2b2r2/1k1RQ3 b - - 0 1 illegal: No possible last move, all moves rejected
1N1R2r1/1r1pB3/RPb1r1r1/3n4/prQrQN1p/2BP4/rQ1N4/2k1K1b1 b - - 0 1 legal: proof: g4 b5 h4 g5 b4 e5 f4 gxf4 a4 bxa4 c4 Nc6 c5 Ke7 g5 Ke8 b5 Qf6 Bg2 Nce7 h5 e4 Bf3 Ng6 hxg6 Qb6 cxb6 exf3 e4 Ke7 g7 Ke6 b7 Ke5 b8B Kd4 e5 Kd3 b6 a5 e6 h5 g6 c5 e7 f5 e8N c4 Ba7 a3 Ra2 c3 Kf2 c2 Nh3 a4 Nd6 h4 Nf7 Nf6 g8Q Bb7 g7 Bc6 Ng1 Nd5 Kf1 f2 Nf3 Bc5 Rb2 a2 Nd8 a1R Bb8 Rh6 Qe8 Ra2 g8Q Rg6 Rb5 Ra7 Rh3 Rb7 Ba3 c1R Nc3 Rb1 Ne2 Rb4 Be5 Bd4 Qee6 Be3 Qe1 Kc2 d3 Bc5 Rg3 Be3 Kg2 f1R Bc3 Bg1 Nd2 Rd4 Ra5 f3+ Kh3 f4 Be7 f2 Kg2 Rb4 Ra6 Rd4 Qe4 Rb4 Qa1 Re1 Qb2+ Kd1 Qge6 f1R Qc4 Rf3 Qee4 Re3 Rg4 Rf1 Rg5 Rff3 Qa3 Rg3+ Kf1 f3 Nf4 f2 Qab3+ Kc1 Rf5 R3g4 Rf8 Reg3 Ke2 f1R Rh8 Rff3 Ke1 Re6 Rf8 Rg8 Re8 R3g6 Rf8 Bb5 Nc6 Rf2 Nb8 Bc6 Rd8 Rfg2 Nf1 Rgc2 Nd2 Rcb2 Qb5 Rd4 Q3c4 Rb4 Qb3 Ra1 Q5c4 Ra2 Qb2+
4rR2/2N2pQr/K4BB1/b2rk1qb/8/1NR1NP1r/qQ1P1pbp/4q1B1 b - - 0 1 illegal: No possible last move, all moves rejected
N1QN3r/2R1p1K1/1k3P2/1B1b3r/p1P2r2/B1bQn1b1/bRbrB1p1/5N2 b - - 0 1 illegal: No possible last move, all moves rejected
B1bR1r2/NRn1Pq1p/bp2N3/1QP5/1Q2rnNk/1Kp2B2/1n2p1r1/4R3 b - - 0 1 illegal: No proof kernel
1n1rB1b1/r3pp2/p4B2/3PQpQK/5P2/1bR3N1/n2q3R/1Nkrb1QR b - - 0 1 legal: proof: e4 d5 exd5 b5 h4 g6 a4 Qd6 axb5 Nc6 c4 Nd4 Qh5 Qf4 Qf5 gxf5 h5 Ne2 h6 Qxc4 Rh2 Qh4 Rh3 Qxh6 Rh1 Qh2 f4 Kd7 Kf2 Kd6 Kf3 Kc5 b4+ Kd4 g4 Kd3 g5 Kc2 d4 c5 g6 h5 d6 a6 g7 c4 b6 h4 b7 h3 b8R c3 d7 Ra7 d8Q Nf6 g8Q Nd7 b5 Bg7 Bb2 Nc1 b6 Qd2 b7 h2 Qb6 Na2 Kg3 Be5 Qgg6 Rd8 Kh4 Bh8 Ra8 Nb8 Qg5 Be6 Bb5 Bb3 d5 Bd4 Qc5 Bf2+ Kh5 Be1 Ne2 Kd1 Qf2 c2 Bf6 c1R Ng3 Kc2 Qg1 Rd1 Be8 Kc1 Qf2 Nc3 Ra3 Na2 Rf1 h1B Qg1 Bg2 Rf2 Bh3 Rh2 Bg4+ Kh6 Nd7 b8Q Bh5 Qe5 Bg6 Rh1 Bh7 Kh5 Bg8 Rc8+ Nc3 Ra2 Nb8 Rc5 Qd4 Rah2 Qd2 Ra5 Na2 Ra3 Bc2 Re3 Bb3 Rc3+
q1R2r2/2nQb2R/pb1k2PN/q2Nppr1/3B4/1NP4Q/pK4nB/B1r5 b - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 bxa4 e4 c5 g5 Be6 Be2 cxd4 Bg4 hxg4 f5 g6 fxg6 d3 Bd2 d4 Bc1 Bd5 exd5 Bg7 Qf3 Bh6 Qd1 Bf8 Kd2 Kd7 b4 f5 h4 a3 g7 a2 h5 a6 b5 g3 h6 e6 h7 g2 g6 Kd6 b6 Qf6 b7 Qe5 Bb2 Nf6 Kc1 Nh5 g8N Be7 Qg4 Nf4 Ne2 g1B Nec3 Nd7 Nd2 Rf8 Nh6 Nc5 Nb3 Ng2 Qh3 Qe4 Rb1 Qf3 Ba1 d2+ Kb2 d1Q Rh2 d3 Rc1 d2 Rh1 Qe1 b8B+ Kd7 d6 d1R Nd5 Qa5 Rh2 Kc6 d7 Qe4 Rb1 Rc1 c3 Be3 Be5 Qf3 Bd4 Kd6 d8B Bf2 Bb6 e5 Ba7 Rhg8 h8Q Ne6 Qh7 Rh8 Qf7 Nc7 Qe8 Bg3 Bg1 Bf4 Bad4 Be3 Rh1 Bf2 Bh2 Qe4 Ng4 Rh4 Nh6 Rg4 Qc8 Rg5 Qd8+ Kc6 Qd7+ Kb7 Ng4 Qe1 Bb6 Bf6 Nd2 Bh4 Kb3 Nf4 Ne7 Bf2 Qh7 Kb8 Bg1 Kb7 Rh3 Rd1 Bh2 Qe3 Ba7 Qec5 Nd5 Be7 Kc2+ Qcb5 Rb3 Rh1 Kb2 Ng2 Qh4 Rf1 Qg3 Rg1 Rh7 Rc1 Qh3 Bd4 Bb6 Qc6 Nh6 Bdc5 Qd6 Qe8 Qd7 Qa8 Ba7+ Bb4 Bd4 Bc5 Qg7 Kc6 Qe7 Ba7 Qd8 Bbc5 Rb8 Be7 Rc8 Bb6 Qe8+ Kd6 Nb3 Ne1 Qa4 Ng2 Qd7+
1R1Rr1b1/ppr2QQN/q2P2b1/3Bn1KP/np6/1B2pRN1/3q4/n2k2N1 b - - 0 1 illegal: No proof kernel
2NKR1n1/k1p1r2b/4r3/1pP2qQB/2N2b2/PN1Rp1B1/b1p2Q1Q/1n5b b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 Ra5 Nc3 Ra7 Nb1 Ra8 f4 d5 c4 g5 c5 gxf4 Qc2 Nd7 Qb3 Nb8 Qc4 dxc4 Kf2 Kd7 Kf3 Kc6 Kg4 b5 Kg5 Kb7 d4 e5+ f6 f3 h4 c3 h6 c2 h7 f2 d5 e4 d6 b3 h5 b2 a3 Qe8 h6 Qd7 f7 Qe8 d7 Ra6 d8Q Ra7 Ne2 Qe6 Nd2 b1B Rh3 Ka6 Nd4 Bg7 f8Q Ba2 Rd3 Kb7 Nc4 Nc6 Nb3 Ra6 Be2 f1B Bf4 Be5 Re1 Nb4 Bg3 Nd5 Bh5 Ka7 Qf2 Bb7 Qdf6 Ba8 Kg6 Qg4+ Kf7 Qf5 Ke8 Re6+ Kd8 Nc3 Qg5 Nb1 Ree3 Bg2 Re1 Bc6 Re2 Be8 Re1 Bh1 Re2 Nf6 Re1 Rg8 h8N Bf4 h7 Rg7 Ng6 Ng8 Ne7 Bg6 h8Q Bh7 Ree3 Kb7 Nc8 Rge7 Rd5 Ka6 Red3 e3 Rd7 Rf7 Re7 Kb7 Re8 Rfe7 Qc3 Ka8 Qcd2 Kb8 Qh2 Kb7 Qdf2 Ka8 N8b6+ Ka7 Nc8+
1NK5/1p2P2Q/3pPbB1/pq3r1Q/6RR/1r1nrpBB/3r2b1/k3nRN1 b - - 0 1 legal: proof: d4 c5 g4 cxd4 f4 h5 gxh5 e5 fxe5 a5 a3 Bxa3 b4 Bxb4+ Nd2 Bd6 Nb1 Bf8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 e4+ d3 h4 g5 h6 g4 h5 d6+ e6 g3 h7 g2 h6 Nd7 e5 Ngf6 e7 Qb6 Qh5 Ng4 Bf4 Bg7 Nc3 Nh2 Ne4 Nf3 Bg3 Qb5 Rh4 Rf8 h8R Bf6 h7 Ne1 Nc5+ Kc3 Rg4 Kb2 c4 d2 Na6 d1R c5 Rd2 Nb8 Ra6 c6 Rb6 Bc4 Nc5+ Be6 Ncd3 c7 Bd7 c8B Bc6 Ba2 Bd5 Rc1 Bc6 Bb1 Ka1 Rd1 Nc2 Rf1 Nce1 Rhg8 Bf3 h8Q Bd5 Rh4 Bc6 Ne2 g1R Q8h7 Bg2 Rgg4 Rh1 Ng1 Rh3 Bf4 Re3 Bg3 Rc6 Bd7 Rc3 Bc2 Rb3 Bb1 Bg7 Bc2 f6 Ke6 f5 Bb1 f4 Bc2 Nb2 Bg6 f3 Bc8 Rf5 Bd7 Qa6 Bc8 Bh8 Kd7 Nd3 Kd8 Bf6 Be6 Qb5 Kc8 Rf4 Bef5 Rd4 e6 Rd5 Rb4 Rde5 Bh3 Rf5 Rbg4
K5R1/1n1NqB2/p1k2QPP/rb1qn2N/1b1Q1b1B/p2p4/NQ3pq1/3R4 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 Ra3 b5 Ra1 bxa4 h4 h5 gxh5 g5 Ra3 g4 Ra2 Nf6 Ra1 Ng8 Qd2 a6 Qd3 Rh7 Qd2 Rg7 Qd1 Rg5 hxg5 Ra7 Qd3 Rc7 Qd2 Rc6 Qd3 Rh6 Qd1 Rh8 Kf2 d5 e4 Kd7 c4 f5 b4 d3 e5 f3 Ke3 f4+ Kd4 a3 e6+ Kc7 c5 g3 h6 g2 b5 d2 b6+ Kb7 e7 f2 e8Q f3 c6+ Ka8 b7+ Ka7 c7 Kb6 Qf7 Bd7 c8Q Qe7 Ne2 g1B Ng3 Nf6 Qc3 Ng4 Bc4 Kc6 Qb2 Ne5 Nh5 Rg8 Nc3 Bh2 Na2 f1Q Rg1 f2 Qf5 Qg2 Qf6+ Kc7 Qa4 d1Q+ Bd2 Qb3 Rad1 Bb5 Bf4 Nd7 b8N Kb7 Bg3 Nc5 Bh4 Bf4 Nd7 Kc7 Qb4 Nb7 Qa4 Nd6 Kc5 d4 Bf7 d3 Qad4 Qbd5+ Kb4 Rg7 Ka5 Rg6 Qh8 Rf6 Qg7 Rf5 Qf6 Kd8 Kb6 Nb7 Ka7 Kc7 g6 Rg5 Rge1 Rf5 Ka8 Rg5 Be6 Kc6 Bf7+ Qed6 Rd2 Rg4 Nc1 Bh2 Qc2+ Nc4 Qcb2 Bg3 Re6 Ne5 Qa7 Ra4 Re8 Bf4 Rd1 Ra5 Qad4 Q6e6 Na2 Bb4 Rg8 Qed6 Be6 Qe7 Bf7+
q2R3Q/1Q1PNRp1/1B3r2/BpK2n1B/k7/1q2P2n/p2qprbN/5rR1 b - - 0 1 legal: proof: e4 b5 g4 d5 b4 dxe4 a4 bxa4 b5 h5 gxh5 c6 b6 Bd7 Nf3 Bf5 Ng1 Bc8 Ke2 e5 Ra2 e3 Ke1 e4 Qe2 Bc5 Qb5 cxb5 Kd1 Bd4 Ra1 Bc5 Ba3 e2+ Kc1 e1R+ Kb2 e3 Nf3 e2 Ng1 Be3 fxe3 Qe7 Kc3 Kd7 Bc1 Ke8 Kb2 Qd8 Kc3 Kd7 Kd4 f5 h4 a5 c4 f4 h6 f3 c5 f2 h7 a3 c6+ Kd6 b7 a4 h5 a2 c7 a3 h6 Be6 c8Q Na6 b8B+ Nc7 Bg2 f1Q Bf3 Bd5 Nc3 Ne7 Ba7 Rf8 Bh5 Bg2 h8R Ncd5 h7 Qf7 Qb7 Nf4 Nd5 Nh3 Nf3 Qd7 Rb1 a1Q+ Bb2 Nf4 Nh2 Rc1 Bc3 Nh3 Rg1 Qfe6 Rb4 Rf2 Rd8 Rcf1 h8Q Rc8 d3 Rc6 Rc4 Ra6 Rc7 Rc6 Bb6 Qf7 Nf6 Qb3 Nd5 Qaa2 Qa7 Qd2 Bca5 a2 Qa6 Ke6 Qa7 Qc8 Qb7 Qa8 Rcd7 Rd6 Kc5 Nf5 Rf7 Ke5 Ne7 Rf6 d4+ Ke6 d5+ Ke5 d6 Ke6 d7 Ke5 Ba7 Ke6 Kb6 Kd6 Nc6 Kd5 Kc7 Kc4 B7b6 Qbb4 Ne7 Kb3 Bg4 Ka4 Bf3 Nd6 Kc6 Qb3 Kc5 Nf5 Bh5
Rrn2Q1B/1R2RP2/n1k2pbP/2r2p2/8/NQ4r1/1KpN3p/nbNb1B2 b - - 0 1 illegal: No proof kernel
4r3/p1ppNbn1/P3QnN1/Q2p2K1/q1n1RNQ1/1B3b2/n1P2B2/2k3Rn b - - 0 1 legal: proof: e4 f5 h4 fxe4 d4 g5 d5 gxh4 Qd3 e6 Qd1 exd5 a4 b5 Rh2 b4 Rh3 Na6 Rh1 Rb8 Bg5 b3 Bc1 Ba3 bxa3 Rb5 axb5 Ke7 Be2 Kf7 Bf1 Ke8 Ke2 Kf7 Ke3 Ke6 Kf4 h5 g4 e3 g5 e2 a4 e1N b6 b2 b7 h3 b8Q h4 g6 h2 g7 h3 a5 Kd6 Bc4 Kc5 Nf3 Nb4 Nc3 b1N Nd4 Na2 Be3 Ba6 Rg1 h1B Bb3 h2 Nce2 Nf3 Nc6+ Nd4 f3 Nd2 Bf2 Bd3 a6 Bg6 Qb5+ Kd6 Qb6 Nf5 Qa5 Qh4+ Rg4 Bg2 Ne7 h1N Qe1 Ngh6 Rc1 Re8 g8Q Bh5 Qg1 Ng7 Qf7 Ng8 Rd1 Qh2+ Kg5 Ke5 f4+ Ke4 f5+ Kf3 f6 Qf4+ Kh4 Qb4 Qe6 Qa4 f7 Nc4 f8N Nf6 Kg5 Bf7 Rf1 Bh3 Re4 Bg4 Nfg6 Bh5 Nc1 Bg4 Nd3 Bh5 Be3+ Ke2 Rd1 Bf3 Qgg4 Ng3 Rg1 Nh1 Rg2+ Kd1 Ndf4 Nd2 Rg3 Kc1 Bf2 Nc4 Rg1+
4N2B/Qkb1P3/1r1r1p2/1p2n1nN/5r2/1Ppn3p/N1BQnR2/q2B1K1R b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 h4 gxh4 f5 a4 f6 a3 Rh3 exf6 Rh2 f5 Rh1 Bd7 Nh3 Ba4 Ng1 Bb3 axb3 axb2 Rh2 f4 Rh3 Bb4 Rh1 Bf8 e4 Kd7 g4 Kc8 d4 b5 d6 h5 e5 c5 d5 h3 g5 h4 e6 h2 d7+ Kb7 d6 h3 g6 c4 g7 f3 Be2 f2+ Kf1 Ra6 Qd2 Nf6 g8B Qa5 d8Q Ne4 d7 Nc6 Nc3 b1N Bd1 Ne5 Bh7 Ng5 Bb2 Bd6 e7 Bc7 Na2 Rd6 Bhc2 Nc3 Ne2 Rhh6 Nf4 Ne2 Nh5 Qa7 Bd4 c3 Rb1 Rb6 Rb2 Rhd6 Qf8 Nc4 Bf6 Ne5 Bh8 f6 Qg8 Qa8 Qc4 Qa4 Qc5 Qa3 Nc1 Qa1 d8N+ Ka7 Ne6 Kb7 Rg1 h1N Na2 Nf4 Neg7 Nfd3 Ke2 f1R Ne8 Rf4 Qce3 Nhf2 Rh1 Nc1+ Kf1 Ne2 Qc5 Nfd3+ Qf2 Ra4 Qc5 Re4 Qa3 Rb4 Qa7+ Kc6 Qe1 Ng1 Bb1 Rf4+ Rf2 Ne2 Bbc2 Nef3 Qa4 Kb7 Qd2 Nfe5 Qa7+
Q3Qb2/2P1N2B/1p1b3p/rQ3Nkp/2q1r1P1/R1nr2r1/1R4pB/B1K4b b - - 0 1 legal: proof: e4 c5 d4 a5 dxc5 g6 b4 axb4 h4 Na6 h5 gxh5 Qd6 Nb8 Qd5 Qc7 Qd1 Qd8 g4 d5 Rh3 f5 Rb3 d4 Rh3 f4 Rh1 Na6 Qd3 Nc7 Qg3 Nd5 exd5 fxg3 Kd2 Kf7 a4 Kg6 c4 e5 f4 b3 d6 e4 c6 d3 c5 b2 f5+ Kg5 d7 b6 f6 h6 a5 Bb7 a6 Rc8 c7 Rh7 c6 Rg7 f7 Kf6 a7 Bd6 f8B Ra8 c8Q Ne7 c7 Nd5 Nf3 Re7 Nc3 b1R Nh4 Rb3 Bb2 e3+ Kc1 e2 Nf5 e1B Ra3 Kg5 Ba1 Re4 Rh2 Bf2 Qb8 Bfc5 Rb2 Qe8 Bg2 Qe6 Qe8 Qf7 Bg7 Qe6 Be5 d2+ Kc2 d1R d8Q+ Qe7 Bh1 Rd3 Qdd7 Qf7 Qb5 Bf8 Kc1 Bcd6 Bf3 Qg8 Bd1 Qe6 Bc2 Bc6 Na2 Nc3 Nb4 Qc4 Nd5 Bb7 Raa2 Ra3 Nde7 Ra5 Ra3 Bd5 Qec6 Re8 a8Q Ree3 Ba4 Bh1 Bc2 g2 Bh2 Rg3 Qd7 Rd8 Qe8 Rd7 Nd5 Re7 Bb1 Re5 Nde7 Re4 Ba2 Qb4 Bg8 Qc4 Bh7
R2kn2Q/1RbBp3/3NP1bq/P1KpB3/p1p1bR2/2r3Nr/3Q4/2q3Qb b - - 0 1 illegal: No proof kernel
5b2/Q2k1n2/7N/Kp3brn/P2bp3/n2npRPB/Q1Nrp2B/1B2N2R b - - 0 1 legal: proof: e4 d5 h4 dxe4 c4 a5 b4 g5 hxg5 f5 c5 f4 Qf3 b6 Qe3 fxe3 Ba6 Qd6 Be2 b5 Bf1 Qb6 cxb6 axb4 d4 h5 f4 e5 a4 c5 b7 b3 g6 c4 d5 h4 f5 b2 d6 h3 d7+ Ke7 d8N c3 g7 e2 f6+ Kd7 f7 c2 Kd2 h2 Kc3 Rh6 Na3 Rg6 Bf4 c1B Nf3 e3 Ne1 e4 Nac2 Nc6 b8Q Nf6 g8B Ne5 Qa7+ Kd6 Kb4 b1N Ka5 Nh5 Bg3 Bb2 Bf4 Na3 Rc1 Be7 f8Q Bf5 Qf7 Rg5 Qa2 Bd4 Nf7+ Kc6 Bg3 Bf8 Nh6 Rd8 Bc4 Rd7 Bd3 Nf7 Rg1 h1N Na1+ Nc2 Bh2 Rd5 g3 Rc5 Bh3 Nf2 Ng2 Kd6 Rgf1 Na3 Bb1 Nd3 Rf3 Rc2 Rh1 Rd2 Ne1 Kc6 Nac2 Kd6 Qa6+ Kd7 Qa7+
1B5B/Kn4p1/1npN1nr1/2k4R/2p3rp/bP1b2R1/QNrP1Q2/2RBn3 b - - 0 1 illegal: No possible last move
B4kbr/1p2NN2/1r1RK2n/1n2pr2/p2BQ1B1/2QRPp2/2r1Pb1N/3b4 b - - 0 1 legal: proof: h4 d5 c4 g5 Rh3 gxh4 Rh1 Qd7 cxd5 Qe6 Nf3 Qb6 Ng1 Qe3 fxe3 a6 b4 Bf5 b5 Bc8 a4 axb5 a5 Nc6 Qb3 Nb8 Qa4 bxa4 Kf2 h5 Kf3 f5 Kf4 c5 Ke5 h3 g4 f4 d4 h4 g5 c4 a6 h2 g6 e6 g7 h3 d6 c3 a7 c2 d5 Be7 d7+ Kf7 d8N+ Ke8 d6 Bh4 Nf7 Bf2 Bb2 c1R Bd4 Rc2 Ra3 Na6 Nf3 Nh6 Rd3 Nc7 Nc3 Nb5 d7+ Ke7 Rg1 h1B g8Q h2 Qg2 Kf8 Nd5 Rb8 Kf6 e5 Ne7 Ra8 Qg6 Bg2 Qe4 h1R Ke6 Rh5 Nh2 Rf5 Rh1 f3 Rg1 Bh3 Rg6 Bg4 Rf6 Bh5 Bh3 Bg6 Bg4 Bh7 Kd5 Bg8 d8Q+ Kg7 Qb6 Kf8 Qc7 Bd7 Qc3 Be6+ Kc5 Bb3 Rd6 Rd8 a8B Rd7 Rf6 Rd6 Re6 Rb6 Rc6 Rc1 Rd6 Bd1 Kd5 Rc2 Ke6
2n1K2k/NpPQp1RB/n4P2/2BrQ3/2nrr1bN/bQ5R/5prp/1N6 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 b4 a5 d4 cxd4 h3 axb4 h4 Qa5 Rh2 Ra6 Rh1 Rg6 Ke2 gxh4 Ke1 Rg5 fxg5 f4 Bd2 Nf6 Bc1 Qf5 exf5 Ng8 Ke2 Kf7 Kf3 Kg7 Ke4 d5+ Ke5 h5 a4 f3 c4 b3 c5 b2 c6 f2 c7 d3 g6 d2 g5 h3 a5 d4 a6 d3 a7 h4 a8N h2 Qe2 d1R Nf3 d2 Nb6 h3 Nh4 Nh6 f6+ Kg8 g7 Nf7+ Kd5 Nd6 Qe5 Na6 Bd3 Bg4 Nc8 Rg1 Ra5 d1R Na7 Rh5 Be3 Rg2 Bc5 Nc8 Rg1 h1R Ra3 h2 Rb3 Be2 Ke6 Bg4+ Bf5 Rd4 Rh3 Re4 Kd7 Rd4+ Ke8 Re4 Nd2 b1N Bg6 Na3 Nb1 Rd4 Bc2 Re4 Bd3 Kh7 Bc2 Nc4 g6+ Kh6 g8Q Rf5 Qd4 Rd5 Qe5 Red4 g7 Re4 Qf7 Kh7 Qfe6 Rd4 Rc1 Rhd1 Q6d6 Rd5 Qd7 R1d4 g8Q+ Kh6 Qgg5+ Kh7 Qe3 Kh8 Qb3 Bh6 Rg1 Bc1 Bd3 Re2 Bh7 Ree4 Re1 Bb2 Ree3 Ba3 Reg3 Be6 Rg5 Bg4 Rg7
1RK1Q2r/4BQ1q/3p2qN/R2p4/3pq2r/q1R2PP1/BnpN1r2/b1B4k b - - 0 1 illegal: No proof kernel
R2Qq1NR/2q5/1pN1Prpn/B1npQ3/1Kn1Bp1b/7P/1Nq2B2/2k2n2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g4 hxg4 e5 a5 Bd3 axb4 Ba6 Rh6 Bf1 Rh8 f3 d5 Be2 Ra6 Nd2 Bf5 Bd3 Rd6 exd6 e5 Nb1 e4 Ba6 e3 Bf1 Be4 fxe4 Qg5 Qf3 Qe7 Qd1 Qd8 c4 Kd7 a4 Kc6 d7 Kc5 h3 f5 e5 f4 a5 g6 a6 d3 a7 Kd4 a8Q g3 c5 g2 c6 e2 Kd2 b3 c7 b2 c8N Be7 Nc3 b1Q Qe1 Bh4 Ne7 Qc7 d8B Nd7 Nd1 Nc5 Nb2 Nh6 Ng8 b6 Nf3+ Ke4 Kc3 g1N Nd4 d2 Bg2+ Ke3 Nc6 Qc2+ Kb4 Nf3 Bf6 Nh2 Be4 Nf1 Qd8 Rh7 Ra8 Rf7 Rg1 Rf8 Rg5 Rf7 Bh8 Rf8 Rh5 Rf6 Qd1 e1Q e6 Qe2 Bg7 Qa6 Qg4 Qac8 Qg5 Q8d7 Qf5 Qe8 Qe5 Ke2 Bh8 d1N Bd2 Nde3 Be1 Nc4 Bf2 Kd2 Bg7 Ng4 Rh8 Kc1 Bf8 Nb3 B8c5 Nh6 Bcd4 Nc5 Bc3 Ng4 Kb5 Nh6 Ba5 Nb3 Ka4 Nc5+ Kb4
3nQn2/2K3R1/2RnQ2q/2BppPpN/q5kB/1N3rP1/B1Qp2r1/r3n3 b - - 0 1 legal: proof: e4 b5 b4 c5 d4 cxd4 e5 a5 a3 axb4 e6 b3 Bf4 b2 Bc4 b4 Bf1 fxe6 Bh6 e5 Bc1 e4 h3 b3 Bd3 Ba6 Bf1 Be2 h4 Bh5 Be2 g5 Bd3 Bg6 h5 Bg7 hxg6 Be5 Be2 Bd6 Bf1 Bb4+ axb4 Ra5 Nh3 Ra4 Ng1 Ra8 Kd2 d5 c4 Kd7 f4 Ke6 c5 Kf5 g7 h5 b5 e6 c6 e3+ Kd3 e2 b6 h4 b7 h3 c7 h2 c8Q Ra6 Nh3 Qa5 Be3 Kg4 f5 Nd7 b8B Qa4 Nf4 Nf8 Qe8 Nh6 g8Q Nf7 Nh5 Nd8 Nd2 b1N Bg3 b2 Qc2 Na3 Nb3 b1R Bh4 Rb2 Rc1 e5 Qge6 e1N+ Kd2 d3 Kc3 d2 Bc4 Ra2 Ba7 Ra1 Bc5 Qd7 Kb4 Nb5 Bb6 Nd6 Kc5 R6a2 Ba7 Rb2 Kb6 Qa4 Kc7 Rba2 Bc5 Ra3 Nd4 Rh6 Ba2 Re3 Nb3 Re2 Rf1 h1Q Rf3 Rf2 Rc3 Rf3 Rc4+ Ne4 Rb4 Qh3 Rb8 Nd6 Rb7 Ng6 Bhf2 Rf4 Ng3 Qh4 Ba3 Qd4 Qcc6 N6f7 Kb8 Nd6 Rg7 Qb4+ Kc7 Nf8 Qc3 Rh5 Qb2 Qh3 Rc6 Qa4 Qc2 Rf3 Bac5 Qh1 Ne2 Rh6 Nf4 Qh5 Bg3 Qg6 Bgf2 Rh2 Bh4 Qh6 g3 Rg2 Nh5
2B5/p1RB2N1/p1bR2q1/1n1N4/k3p2K/1BbQPQ2/qnb2nPp/2n2Q2 b - - 0 1 legal: proof: f4 c5 h4 h5 a4 e5 d4 cxd4 a5 g5 a6 bxa6 Rh2 e4 Nf3 Nc6 Rh1 Rb8 Ng1 Rb5 Bd2 Re5 fxe5 Rh6 Bf4 gxf4 Nc3 Rg6 Nb1 Rg5 hxg5 Qe7 Kd2 Qf6 Ke1 Qd8 Kf2 f5 b4 d5 c4 Kd7 c5 f3 Kg3 f2 g6 d3 g7 d2 e3 f4+ Kh3 f3 b5 h4 b6 d4 b7 d3 b8Q Qb6 Qc2 d1N Qc1 d2 Be2 f1N Nc3 f2 Nf3 Nb2 Ng5 d1B Bc4 Bb7 Nd5 Ng3 Ne6 Nf6 g8Q f1Q Ng7 Nd4 e6+ Kc6 e7 Bc2 Qd8 Qf2 Qf1 Ng4 Rd1 Nb5 Qf7 Ne2 Qf3 Nc1 Rd3 Qd2 Rd4 Ba8 Rd3 Qda5 Rd2 Qa2 e8B+ Kb7 Bd7 Qg6 Nc7 Bd6 c6+ Kb6 Nd5+ Kc5 c7 Be5 c8B Bc3 Qd3 Bc6 Qdf6 Nb3 Rc1 Nf2+ Kh2 h3 Rdd1 Qf5 Kg3 h2 Kh4 Qg6 Q6f5 Nh1 Qff1 Nf2 Qf3 Na4 Rb1 Nc1 Rb4 Nb2 Rb3 Na3 Rb7 Nb5 Rd2 Qe6 Rc7 Qg6 Nb6 Kb4 Nd5+ Ka5 Ne7 Na3 Qde2 Qe6 Rd6 Nb5 Nd5 Qg6 Qd3 Ka4 Bb3+
6Q1/1p2R1Kn/1R1r2P1/2p4Q/Bq1pP2N/pQk3n1/3n1rnB/1r1B1r1N b - - 0 1 illegal: No proof kernel
7q/2P2bpB/1prP3Q/4krB1/1pnpb1p1/1n5Q/1RR1KN1R/r3B1N1 b - - 0 1 legal: proof: g4 d5 e4 Kd7 b4 a5 d4 axb4 e5 h5 g5 c5 g6 e6 Qf3 Kc6 Qf6 Bd6 exd6 cxd4 Qf4 fxg6 Qf3 g5 Qxh5 g4 Qg6 Qf8 Qf7 Qd8 h4 d3 f4 d2+ Ke2 e5 a4 e4 c4 e3 a5 b6 a6 d4 c5 Bd7 h5 Ra7 h6 Qe8 f5 Qe4 f6 Qg6 h7 Be6 Ra2 Kd5 c6 Ra8 a7 Ne7 c7 Nf5 Nc3+ Ke5 Ne4 Qh5 Rh2 Na6 Rc2 Rhf8 h8Q Nc5 Qh6 Nb3 Nf2 Bd5 Qfg6 Be4 f7 Qh3 Qgh5 d1B+ Ke1 e2 Bg5 Ne3 Bg2 Rfc8 f8B Nc4 Bfe7 Rf8 Bd2+ Rf5 Beg5 Qh4 Rb2 Bdc2 Bc3 Bd5 Be4 Bf7 Bcd2 Rf3 Bg6 Be4 Bh7 Rf8 a8R Rc3 Raa2 Qh3 Nh1 Rc2 Kf2 e1R Qh4 Ra1 Ke2 Na3 Nf2 Rc6 Be1 Nc4 Bf5 Be6 Bh7 Rf5 Q4h5 Bg8 Rc2 Bf7 Rab2 Qh4 Bgd2 Qd8 Bg5 Qh8 Qh3
B1k4R/2BnrQpn/P1Bp3Q/3KP3/3p4/2R1ppnQ/2nN4/2b1Nqn1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 c5 e6 cxd4 Be3 d6 Bg5 Na6 Bc1 Nb8 f3 b5 Bg5 Bd7 Nc3 Ra3 Nb1 Re3+ Qe2 Re4 Bc1 Qc7 exd7+ Kd8 Nh3 e5 Ng1 Ke7 Ba3 Qd8 Bc1 Rf4 Qd1 e4 Ne2 e3 Ng1 Re4 fxe4 Rh4 Nd2 Rh3 Nb1 Rh8 Ke2 f5 Kd3 f4 c4 b3 a4 b4 h4 g3 h5 b2 e5 b3 Ke4 g2 a5 Nc6 h6 Ke6 h7 Qa8 d8Q Qb7 a6 Be7 c5 Qb5 Ra3 Bh4 Qh5 Nb8 c6 Be1 c7 Nd7 c8B Bd2 Nf3 g1N Bg2 Qf1 Qc7 Ke7 Qc4 Kd8 Qcf7 Kc7 Kd5 Nf6+ Ke6 Rd8 h8Q Nh7 Qh3 Re8+ Kd5 Re7 Ne1 Kb8 Be4 f3 Bb7+ Kc7 Nc3 b1N Bc6 b2 Rb3 Nhf8 Q8h6 Na3 Nb1 Nc2 Ba8 Kc8 Rd3 Bb4 Nd2 b1N Rc3+ Bc5 Bc6 Nh7 Bb2 Bb4 Ba3 Ba5 Bc5 Bb4 Bb6 Ba3 Bd8 Bc1 Nc4 Nd2 Ba8 Nb3 Nd2+ Nc5 Bd3 Kb8 Bb5 Ne4 Bbc6 Ng3 Qg5 Qg2 Qhf5 Nhf8 Rh8 Nh7 Qh6 Qf1 Qfh3 Kc8 Bc7+
rk2n3/1n6/1P2R1P1/r2pnR2/1n1KNp2/1NpQ4/Qr1p1p2/B1q2NQB b - - 0 1 legal: proof: d4 b5 b4 e5 g4 exd4 f4 g5 h4 gxf4 a4 bxa4 c3 Ba6 c4 Bb5 cxb5 Bd6 Rh2 Be7 Rh1 Bg5 hxg5 Kf8 Rh3 Ke7 Rh1 Ke8 Kd2 d5 Kd3 Kd7 e4 Kc8 b6 a5 e5 f5 g6 c5 b5 h5 g7 h4 e6 a3 e7 c4+ Kd2 a2 e8N c3+ Kd3 a4 g5 f3 g6 f2 Bf4 h3 Nd2 a3 Ngf3 h2 Bg2 Nd7 Qg1 Qg5 Rf1 a1N Nd6+ Kb8 b7 a2 Nb3 Ngf6 g8Q+ Ne8 Bc1 Nc2 Bb2 a1R Nfd2 R1a5 Ba1 Rh7 N6e4 Ne5+ Ke2 Rd7 Re1 f4 Nf1 Nb4 Qf7 Rd6 Qf5 Rb6 Qh3 Qh6 Qg3 Qh3 Qd3 Qe3+ Kd1 Qc1+ Ke2 Kc7 b8Q+ Kd7 Qd6+ Kc8 Bf3 Rb7 Qa6 Kb8 Qg3 Rb6 Rg1 h1N Qh2 Qa3 Rg5 Rb7 Rf5 Ng3+ Kd1 Qb2 Qg1 Rb6 Bh1 Qa3 Rf8 Nf5 Ke2 Nd6 Rf6 Nb7 Rf5 Re6 b6 Qc1 Qd2 Nec6 Qa2 d3+ Kf3 d2 Qd3 Re7 Re3 Ne5+ Ke2 Rf7 Rh3 Rc7 Rh7 Rcc5 Re7 Rcb5 Re6 Na6 Nbc5 Rb1 Nb3 Rb2 Qb5 Nd7 Kd3 Ne5+ Kd4 Nb4 Qd3
1n1N2Qk/1nN1B3/r5b1/Pp2pP2/2BqnpbK/2pp2RR/5Q1p/1B2Q3 b - - 0 1 illegal: No proof kernel
3R2K1/1nN4N/1R1PN2r/bq1Qn2b/B6b/B1r1Qnk1/1q1bb1P1/Qrq5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 f5+ Kd4 c5+ Kc3 Ke5 e4 h5 b6 f3 d3 f2 b5 h3 b7 f4 b6 h4 Qe2 h2 Qh5+ Qg5 Ne2 a4 Ng1 h3 Qe2 a3 Bb2 a2 Ba3 f3 d4+ Kf4 d5 Be7 e5 Nh6 e6 Nc6 b8N Na5 d6 Ng4 b7 Kg3 Qd3 Ne5 Qg6 Rh6 Bd3 f1B Nd7 f2 b8Q Nb7 Nf3 Be2 Qc7 f1N Nd4 Nd2 Nf6 Ndf3 Rc1 h1R Qc6 h2 Qd5 Bd7 Rf1 Rc8 Qg7 Be8 Nh7 Bh5 Bc2 Bd8 e7 Ba5+ Bb4 Rg1 e8Q h1Q Na3 Qh4 Rab1 a1B+ Rb2 Qh2 Rf2 Rb1 Ne6 Qh4 Ba4 Qd4+ Kc2 c3 Kb3 c2 Nb5 c1B Nbc7 Bd2 Ba3 Ng1 Rf7 Ngf3 Rd7 Qf2 Rd8 c4+ Ka2 c3 Rb6 Bb2 Kb3 c2 Qgh8 c1Q Qg7 Nd3 Qgh8 Bbc3+ Kc4 Qf5 Qf6 Bg5 Qfd4 Bh4 Qeh8 Qfg5 Qe3 Bd2+ Qc3 Qcg1 Qa1 Qf5 Qdd4 Ne5+ Kd5 Qc1 Qed3 Be1 Na8 Qg6 Q3e3 Bb5 Nef8 Rc3 Nc7 Qfb2 Qdd2 Be2 Qdd3 Bf6 Ke6 Bd2 Qb5 Qd3 Qd5 Bg7+ Ke7 Qdb5 Nfe6 Bf6+ Kf8 Bh4 Kg8
1qQ4R/1b2r1nb/3PrQ1K/n2QqBr1/n1r2RPN/b3B1r1/4k2N/1q5B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 b4 Kd4 e4 c5 d3 h5 e5 a5 b6 f5 b5 h3 e6 c3 b7 c2 e7 a4 e8B h2 b6 h4 Ra3 h3 Qe2 c4 Nd2 c3 Qd1 Rh6 Bg6 Nd7 b8Q Ra7 b7 Ne7 Qe1 Nb6 Bh7 Re6 Bb2 c1N Qa8 Nb3 b8Q Bb7+ Ne4 Na5 Ra1 a3 Ra2 Na4 Bc1 c2 Ra1 a2 Bd2 c1R Qc8 Rc4 Qc6 Qb8 Rb1 a1Q Ke2 f3+ Kf2 f4 Nd6 Nf5 Qc1 Ng7 Bg2 Qc3 Bf5 Qb2 Nc8 Ba3 Nd6 Qb5 Qd1 Qe5 Be3+ Kc3 Qb6 Be4 d4 Rae7 d5 Bc2 Kf1 f2 Ke2 f1R Nf3 Rg1 Rb4 Be4 Qdd4+ Kc2 Qd8 Bd3+ Kf2 Kd1 Qc5 Be4 Qcc8 Bb1 Qf8 Bc2 Qf6 Be4 Nh4 f3 Nf7 Bc2 d6 Bb1 Bf1 Rg3 Ng5 Bc2 Qd5+ Bd3 Rg1 h1R Rg2 h2 Rg1 Kc2 Bg2 Kc3 Rgb1 Rd1 R1b2 h1B Rd2 Be4 Rd4 Bd3 Rf4 Rb1 Rb7 Rb5 Rd7 Kc2 Rd8 Kd1 Rh8 Rbc5 Ne4 Rb5 Nd2 Bb1 Nf1+ Bd3 Kg1 f2+ Kh2 Ke2 Bge4 Rg1 Kh3 Rg2 Nf3 Rg3+ Kh4 Rbc5 N1h2 f1Q Kg5 Qfb1 Nh4 Rb5 Qdc5 Bc2 Ba8 Bb7 Kh6 Bd3 Be4 Bc2 Bh1 Bh7 Qd5 Ba6 Bc6 Bb7 Bd7 Qc3 Qd4 Rg5 Qd5 Qe5 Ng2 Re8 Nh4 R6e7 Bf5 Re6 Qd8 R8e7 Qc8
q3bK1N/nR3B2/bb1Rrk2/b1PRBN2/3PQ3/4q3/Q3Bbr1/1q1b1nb1 b - - 0 1 illegal: No proof kernel
2br4/1r2P1Pr/N5Qr/RBqr4/1B2R1rn/2b3Q1/1N2n1BK/Q1qrk2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g4 d5 Kg2 h5 c4 f5 c5 a5 g5 d3 c6 Kd4 c7 d2 e5 Ke3 b6 a4 g6 f3+ Kh3 Kf2 b7 d4 g7 d3 b5 a3 e6 a2 b6 f4 Ba3 Nh6 Kh2 h3 Bc5+ Qd4 Bg2 h4 Bb4 Nc6 b8Q Rh7 b7 Nf5 Ne2 Qc5 Na3 Ncd4 Qb1 d1R Qc2 d2 Nc1 Ne2 Bf1 Ke1 Nb3 f2 Qb1 f3 Bg2+ f1Q Na5 f2 Rg1 Be7 Qc2 Bf6 e7 Bc3 Rb1 a1R N3c4 Ra4 Ra1 Rb1 Qc1+ d1R Nb3 Rh6 Qc2 Rd5 Qa7 Rbd1 b8Q Rb1 Kh1 h2 Nb2 Rbd1 Qa5 Ra7 Qb1 Rb7 Qb6 Ra8 Ra5 Rh7 Qa2 R1d4 Qg6 Rg4 Qa3 Qb6 Qg5 Bd7 Bf3 Rc4 Nd3+ Kd1 Qg6 Rg4 Nd4 Qc5 Bg2 Nc1 Nb5 Qe1 Qa1 f1R Qf8 Rd8 Nb2+ Ke2 Na7 Bc8 Nc6 Qd2 Nb8 Rd1 Na6 Qh6 Bf1+ Kd2 Rg3 Ke1 Bb5 Ne2 Re3 Qf4 Re5 Qc1 Re3 Ng3+ Kg2 h1R Qf4 Rh3 Re5 Rh1 Re4 h3+ Kf3 h2 Kg2 Rgh4 Qe3 Nf5 Qf3 R4h6 Qfg4 Nh4+ Kh3 Be6 c8B Rg1 Bcd7 h1B Kh2 Rg3 Q4g5 Bh3 Bg4 Rg1 Bf3 Bc8 Qe5 Rg3 Bg2 Rg4 Qg3+
K5R1/b1r3Q1/2Br2Rr/3N1r1b/b2q2QN/P1bn3P/2nknbBB/2N2r2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 e4 g5 a3 f5 h3 b5 Qe1 c5 Nc3 g3+ Kf3 g4+ Kg2 b3 Nb1 b2 Qe3 b4 Qf2 b3 Nd2 b1B Be2 c4 Rh2 c3 Ra2 c2 Rh1 f3+ Kf1 b2 Qe1 f2 Kg2 f1R Qf2 f4 Bf3 Rh6 Qe3 Bg7 Qc3 Nf6 Ne2 Ra7 Rg1 Nfd7 Qc4 Nc5 e5+ Kc7 e6 Kd6 e7 Nc6 e8B Nd3 Qa4 Ncb4 Bc6 Rc7 Be4 Be6 Nf3 Bf7 Nh4 Bh5 Be3 Bf6 Nc1 Bh8 Ra1 Ba2 Qa7 Bb3 Ra2 b1R Rb2 Rc8 Qg7 Ba4 Rb3 Rc7 Bf3 Na2 Rb8 Rb6 Bd2 Qd7 Rg8 Ra6 Ba5 Nab4 Bb6 Ra5 Ba7 Rd1 Bb8 Rd2+ Kf1 Rd1+ Ke2 g2 Be4 f3+ Ke3 g3 Qg4 Ke7 d6+ Kf6 d5 f2 Kd4 f1R Kc4 Qg7 d7 Ke5 d8Q Qd7 Qg7+ Kf4 d6 Ke3 Qc8 Kd2 Kd4 Qd8 Qg4 Raf5 d7 Qf6+ Kc4 Qe5 d8N Qd6 Qd7 Bc3 Ne6 Qe5 Nf4 Qh8 Nce2 c1N Nd5 Nc2 Rg6 Qd8 Qg7 Qd6 Rh1 g1B Bg2 Ba7 Rg1 Bb3+ Kb5 Ba4+ Ka6 Qf6 Be4 g2 Bf3 Qd4 Be4 Rc8 Kb7 Rc7+ Ka8 Rd7 Bh2 Rc7 Rh1 g1B Bg2 Bf2 Rg1 Bb2 Nec3 Ne2 Na2 Bc3 Bf3 Rb1 Nc1 Rb6 Rg3 Ra6 Bg2 Rb6 Re3 Ra6 Re8 Rb6 Rg8 Ra6 Bb7 Rd6 Bc6
1bQ1NB2/2bK4/3N2q1/r1qQqR2/1Pb1RnBP/2nr4/kq2R3/rqq1Q3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 f5 h4 g5 e4 a5 b4 d5+ Kb3 g3 Ka4 g2 c4 f3 b6 g4 Kb5 f2 c5 d3 c6 d2 c7 f4 b7 a4 e5 g3 Qb3 d1Q Nh3 g1B Be2 f1Q Bb2 g2 Qg3 d4 Nd2 Kd5 e6 a3 e7 f3 e8Q f2 Qe7 a2 Qf7+ Be6 c8R d3 Bg4 Qc2 Bd4 Bh2 Qfc7 g1Q Nf3 d2+ Kb6 d1Q Ne5 Qe7 Nf3 Qg6 Bc5 Kc4 Qce5 Kb3 Qgf4 Qd2 Qg3 Ra5 Qe4 Bc4+ Qe6 Nd7+ Kc6 Qfb1 b8Q f1Q Nf2 Nb6 Re8 Qdb2 Ne4 Nf6 Qe1 Nh5 Qc8 Bb8 Nf6 Nd5 Ne5 Nc3 Qd5 Nf4 Nf7 Qe5 Rh2 Bfd6 Re2 Bdc7 Bf8 Qc5+ Kd7 Q1c1 Rb1 a1R Nd6 Ka2 Re7 Qh1 Nfe8 Rh5 Rf7 Qhe4 Rf5 Rg5 Bf3 Rg3 Bg4 Qec2 Re4 Rd3 Re2 Q1e3 Rd1 Qec1 Rdd2 Q1b1 Re4 Qcc1 Rde2
1b4q1/2P1B3/2bP1N2/Q2r4/n2nbKRq/bb3NrB/1qR1QNb1/1k3n1B b - - 0 1 illegal: No proof kernel
4b1rB/P1r2n2/1Q2r2b/Nqb2K2/k1Pq1b1B/RR1Q4/bb3RB1/1n3nN1 b - - 0 1 illegal: No possible last move
1BrQqn2/rkq4N/q1QbR1N1/qB2B2q/7R/3b1bP1/2P2K2/bbR2n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 b4 h5 e4 f5 g3 a5 e5 d5 b6 Kd7 b5 a4 b7 Kc7 e6 f3 e7 f4 e8Q h3 Qg6 d3 Kf2 a3 Qf5 h4 Qh7+ Ne7 Qg7 h2 Qg4 d2 Qg7 h3 Nc3 a2 Bd3 d4 Bg6 d3 Qg8 Nd5 Qf7+ Nd7 b8R Ra7 Nce2 Ne3 Rb1 a1B Qf1 d1B Qe6 d2 Bb2 Ba6 Rc8+ Kb7 Bd3 Qa5 Rd8 Bb4 Qg8 Bd6 Nd4 Be2 Bg6 d1B Nf5 Bc4 Be8 Ba2 Rc1 Bb1 Ne7 Qc7 Ke1 f2+ Kd2 f3 Qg2 f1Q Ng6 Qe1+ Kd3 Qea5 Ke4 f2 Nf3 Qe1 Bd4 f1Q Ng5 Qea5 Nh7 Qf8 Be5 Bh5 Rhd1 h1Q Rd4 h2 Qf3 Nf1 Kd3+ Qc6 Ke2 Qg1 Re4 Qgc5 Ra4 Qcc3 Kf2 h1Q Rf4 Qh3 Re4 Qhf5 Rh4 Qe7 Qf8 Bg4 Qg8 Qh5 Qe4 Bf3 b6 Bd3 Qf8 Ka6 b7 Qf7 b8B Kb7 Qa4 Qca6 Qg8 Qcc7 Qc4 Nc5 Bb5 Ne6 Re8 Qfd7 Re7 Qdc6 Qe8 Rg8 Qd7 Rc8 Qd8 Nf8 Re6 Qe8 Qc6+
KR5q/b1b3P1/bNn1R1rQ/Nnb4n/4Q1P1/4RQ2/2bBB1n1/1k1qr2n b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 c4 Ke6 f4 Kf5 a4 b5 g6 e5 g7 d5 g3 h5 a5 b3 a6 d3 Kc3 h4 a7 b2 c5 d2 Kb4 h3 Be2 d4 Ra3 e3 g4+ Ke4 f5 d3 f6 h2 f7 Nc6+ Kb3 b4 Ka4 b3 Kb5 Nf6 Qc2 d1N Qd2 Nh5 Ra5 Ba6+ Ka4 Rh6 Bf1 e2 Rb5 e1B Nh3 Bf2 Qe1+ Ne3 Rb8 d2 Nf4 d1Q Nd5 Rg6 Na3 b1N Be2 Ng2 Nc4 Na3 Ndb6 Nb5 Na5 Bd6 f8Q Bc7 Rf1 h1N Qd6 Qh8 Bd2 Be3 Rf6 b2+ Nb3 b1B Re6 Bf2 Rbe8 Rb8 a8Q Bc2 Qf1 Be3 Qf6 Rb7 Qde7 Rb8 Qg5 Rd8 Qh6 Rd7 Qf8 Rf7 R8e7 Rf1 Qae8 Re1 Qf1 Nb8 Ka5 Bf2 c6 Bc5 Nc1 Kd4 Qff7 e4 Qf3 Rf6 Qeg6 e3 Qgh7 Rg6 Re8 Bf4 c7 Bg3 c8R Bc7 Bc4 e2 R8e7 Nd7 Rb8 Ne5 Ree8 Rf1 R8e7 e1B Be2 Bf2 Ree8 Nd7 Re3 Ne5 Re6 Rg1 Nd3 Re1 Nb2 Bg1 Nc4 Nd3 Bc1 Kc3 Bd2+ Kb3 Re7 Ka2 R7e6 Rg5 Qhf5 Nb4 Q5e4 Kb1 Nd6 Bc8 Nb7 Nc6+ Ka6 Bf2 Qa4 Rg6 Qae4 Bd7 Na5 Bg1 Kb7 Bc8+ Ka8 Ba6 Nbc4 Ba7 Nb6 Bf2 Ra3 Bc5 Re3
1Rrn4/b1kb1r1n/2Nb3r/3q1Rq1/4Q1rN/3B1bQP/P3rR2/1QBK2n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 d4 f5 d6 b5 e5 c5 h3 g5 d5 g3 Qg4 c4 Qf3 g2 Bd2 g4 Ke2 b3 Bc1 g3 Nc3 b4 Ke1 b2 Qf2 b1B Nge2 g1B Bb2 b3 Nb5 c3 Qe3 c2 Bd4 b2 Bc5 g2 Na3 f3 Bd4 f4 Nc4 f2+ Kd2 f3 Rh2 Nc6 Na5 Rh6 Ng3 Nf6 Nf5 Nh7 Bd3 f1R Nh4 f2 Qg3 Re1 Be3 f1R Bf4 Qg5 e6+ Kd8 d7 c1R Be3 Bd6 e7+ Kc7 e8Q Rc4 d8R Rg4 Qe4 Bd7 Rb8 Nd8 Nc6 Rf7 Bf4 Re3 Kd1 Re2 Be3 Bf2 Bc1 g1N Rg2 Ba7 Rf2 Re3 Bf1 Bd3 Be2 Bb5 Bd3 b1Q Rf5 Qb4 Rb1 Qd4 Rb2 Ba6 Rbf2 Re2 R2f3 Be5 Rf2 Bb7 d6+ Kb6 Qeg2 Ne6 Rh8 Bdc8 Na5 Qe4 d7 Bd6 Q2f3 Kc7 Qff4 Qe5 Qd4 Bf3 Qe4 Qd5 d8Q+ Kb8 Qf6 Kc7 Qa1 Bd7 Nc6 Rd8 Qb1 Ra8 Rb8 Nd8 Rb3 Rc8 Rb8
k1b3R1/r2qN2q/N1r3r1/2b2r2/1n1N3Q/2RrP1R1/1P2B1n1/BbK1Qn1b b - - 0 1 illegal: Other
1Nb5/rnn1nQ1K/4n1B1/b6b/QRkB1qPR/1b3N2/P3q2Q/1q1B1rn1 b - - 0 1 illegal: No possible last move, all moves rejected
7K/3Nr1R1/1b4bb/3n3r/nP1n1QrR/q1nBbkPQ/QB2q2b/B2N4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kf6 b4 Kf5 c4 d5 b6 e5 b7 h5 c5 a5 c6 a4 c7 h3 Qb3 Kg4 f5 a3 f6 d3 Kc3 a2 f7 h2 Ba3 h4 Qa4 h3 Qa6 d4+ Kc4 d2 Nc3 d1N Na4 d3 Nf3 d2 Nc3 e3 Qc6 e2 Rg1 h1Q Qb5 e1B Qe8 e4 Qe5 h2 Qe7 e3 Nh4 e2 Na4 Bf5 c8Q Nc3 Ng6 d1N Qed7 Qe7 Kd4 Ra7 Nb2 Bd2 Qcc6 e1B Bb5 Rh5 Qcc7 Nf6 Qcd6 Nfd5 Bd3 Bfh6 f8B Bg3 Qa6 Qe2 Bg7 Na4 Nf8 N1c3 Nd1 Bdg5 Rc1 a1B Bb2 Kf4 Qa5 Bg6 Qh3 Bd8 Nd7 Bb6+ Kc4 Nc6 b8Q+ Rc7 Bf6 Bgf2 g3+ Kf3 Qf8 Qg2 Rh1 Bg1 Rc2 Qe3 Re2 Qc1 Re7 Qe2 Rg7 Bbe3 Qb8 Rb7 Qaa8 Nd4 Qaa7 Rh4 Qa5 Rg4 Qd6 Nc5 Qa2 N5a4 Qb8 Nab6+ Kc5 Nba4+ Kd6 Rc7 Ke5 Rb7 Ba3 Qcb2 Qc7 Qb3 Bb2 Qa3 Qcc4 Ra7 Nb8 Rf7 Nd7 Re7+ Kd6 Qe1 Rf7 Qe2 Qh4 Nb3 Bc1 Nb1 Qf4+ Kg2 Bg7 Bad4 Qh5 Ba7 Ba1 Nbc3 Bcb2 Nd4 Qh4 Ne6 Ke5 Bab6 Qh5 Ndc7 Kf6 Nd4 Qfg5 Kf3 Qf5+ Bhf4 Kg7 N7d5 Kg8 Bd8 Qe5 Bb6 Rg7 Bh6 Kh8 Bgf2 Re1 h1R Qb8 Rh4 Rh1 Bg1 Rh3 Bh2 Qf5+ Rf4 Qd6 Rh5 Rh4 Bc7 Qfe6 Bb6 Qh3 Rg4 Qf4+
n1Q2b1N/Brq3R1/1q1BK3/2r1PrQ1/bR5P/n2bbN2/2Nr3q/1k4bB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 c4 g5 h4 d3 b4 g3 c5 a4 e3 a3 c6 f3 c7 f2 b6 a2 b5 g2 b7 g4 b6 d2 Qe2 d1B Nf3 g1Q Nfd2 g3 Qb5 g2 Qc6 Ra7 Rh3 Nf6+ Kd4 d5 Qe8 Nfd7 Ba6 f1R Nf3 Rh5 Ba3 Qh2 Be7 g1B Bc4 Ba4 Ne1 Nc6+ Kd3 d4 b8B Ba6 c8N Qdc7 b7 Na5 Ba3 Nb6 Nf3 Na8 Bb5 Nc4 Bc1 Na3 Qd8 f6 Bd2 Rc1 Rg3 Rc5 Ba5 Rg5 e4+ Kf4 e5 f5 Nbd2 Be3 Rb1 a1B Nf1 Bb2 Qd5 Bbc1 Rb2 Bg1 Rb4 Bce3 Ne7 Qb6 Bc7 Rh5 b8Q Rb7 Rg2 Rg5 Qg8 Rh5 Ke2 Ke4 Ng6 f4 Bd6 Rf5 Qc8 Qc7 Bc4 Qb6 Nh8 d3+ Ke1 d2+ Ke2 d1R Qg5 Qc7 Bb6 Rd3 Ba7 Rd2+ Ke1 B6b5 Bd5+ Kd3 Rg4 Kc2 Rg3 Bd4 Ne3+ Kc1 Nc2 Bd3 Qh6 Qb6 Rg7 Bde3 Qg5 Qc7 Nfd4 Qb6 Bg2 f3 Bh1 Re2+ Kf1 f2 Nf3 Qc7 Rf4 Kb1 Rc4 Qf4 Kg2 Rd2 Kh3 Qh2+ Kg4 f1Q Rf4 Qc1 Rb4+ Qb2 Kh5 Qb3 Kg6 Bd7 Qf6 Qb2 Kf7 Ba4+ Ke6 Qb3+ Rc4 Qb2 Qg5 Qbb6 Rb4+
3qn1r1/1Q1B1r2/Kb4QP/5BR1/kb2b2P/rnbNB3/1b1qq1QR/6qN b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Ke2 b5 h4 g5 c4 e5 f4 d5 a4 Kd7 f5 Kc6 a5 g4 a6 b3 f6 b4 a7 e3 Kd3 b2 f7 e4+ Kc2 d3+ Kb3 d4 Ka4 g3 c5 d2 h6 e2 Qe1 d3 Rh2 e3 Rh1 g2 Ra2 b3 Qd1 e1B Nf3 g1B Ra3 e2 Ra2 Bb7 Ra1 Nd7 Qc2 d1Q Nc3 b1R Rh2 d2 Bh3 b2 Qb3 Ngf6 Bg4 Rg8 Ne4 Bg7 f8Q Ne8 Ng3 Qc2 Qf7 d1Q Be3 Bec3 Be6 e1B Nh1 Qce2 Bf5 Qdd2 Qg6+ Bgf6 Qc2 Rd1 Ra2 b1Q Rg2 Qbb6 Rg5 Ra1 Qb3 Rg7 Qb4 Rf7 Qg4 Rb8 a8Q Rc8 Qg2 Bb4 Kb3 Kb5 c6 Bb2 c7 Be4 Ne5 Rb8 c8B Qa7 Bf4 Bb6 Qb7 B4c3 Nd3 Ra8 Ra4 Rb8 Rb4+ Ka5 Kc4 Nc5 Bfd7 Ra3 Be3 Ra8 Rb5+ Ka4 Bf5 Nb3 Bce6 Bg3 Bd7 Bd6 Re5+ Bc6 Re4 Bdb4 Reg4 Rb8 Rg3 Ra8 Rh3 Rb8 Rh2 Ra8 Bc8 Be4 Bcd7+ Ka5 Qf3 Bc7 Rg4 Qdb8 Nf2 Ng7 Bg5 Qc8 Nh1 Qg1 Qg2 Bb6+ Qbc6 Qc7 Be3 Rg8 Rg5 Qd8 Qb7 Ne8 Bde6 Ka4 Bc8 Ra1 Bcd7+ Ka3 Kb5 Ra2 Bc8 Ra1 Ka6 Ka4 Bce6 Ra3 Bd7+
r1q4n/1qn3Q1/1QbRn2P/1R1P1rNb/1Bkn2nb/1B2q1q1/5RN1/3KB3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 d4 g5 h4 a5 b6 c5 e5+ Kd5 e6 f5 e7 c3 e8R g3 b5 c2 h5 f3 h6 f2+ Ke2 a4 b7 g2 b6 g4 Na3 c4 Rh2 c3 Nh3 g1N+ Kd3 f4 Be3 c1N+ Kc2 f3 Re7 g3 Rf7 g2 Qe1 Nge2 Nb5 g1Q Nd6 a3 Ng5 a2 Qd1 Bg4 Bh3 f1N Re7 f2 Rh7 Qg3 Ne8 Nb3 Nf6+ Kc4 d5 Nc5 Ne8 Nd4+ Kc1 c2 Bd2 Be7 Be1 Ne3 Nf6 f1B Rb1 a1Q Nh5 Qa7 Rb5 Nce6 Nf4 Qc8 Ng2 Bh5 Bf5 Na6 b8B Ng4 Bd6 Nac7 Bdb4 Qab7 Qd2 Bd8 Rd7 Ne7 Rd6 Ng6 Qf4 Rf8 Qe5 Be7 Qg7 Nh8 Bg6 Rf5 Bh7 Qc6 b7 Bf6 b8Q Q6b7 Qa7 Bd8 Qb6 Be7 Nf3 Bh4 Ng5 Be2 Nf4 Be8 Rf2 Bc6 Ng2 Bf3 Bec3 Bd1 Kd2 c1Q+ Ke1 Rf4 Bc2 Rf5 Ba4 Be2+ Bd1 Qce3 Ba4 Bd3+ Kd1 Be4 Be1 Bf3+ Re2 Nf6 Bc2 Bh5 Ba4 Ng4 Rf2 Nc5 Bc2 N5e6 Bb3+
BR1bn1k1/4q1rb/Qn1N1Pn1/qbB1q3/N1Q1Nr1Q/8/n1Pq4/3q1RK1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 Kf2 h5 g4 a5 b4 e5 b6 d5 b5 a4 b7 d3 f5 d2 b6 h3 g5 d4 f6 h2 Qf3 d1N+ Kg2 h4 Ne2 e3 Ba3 e4 Ng1 h3+ Kg3 e2 Be7 e1Q+ Qf2 a3 Bd3 e3 Bh7 e2 Bf5 d3 Bd6 d2 Bd3 a2 Bf4 Ne7 Ba6 Ra7 Be5 Bd7 Bc7 Rh4 Na3 Nc3 Nf3 d1Q Rf1 h1N+ Kh2 Ng3 Nd2 Nge4 Kg1 Nd6 Nb5 Ne8 Rb1 a1Q Bd6 Qa5 Bc5 Na2 g6+ Kg8 g7 Kf7 g8N Rf4 Nc3 Bf5 Na4 Nd7 b8Q Bh7 b7 Ng6 Qd6 Be7 b8Q h2+ Kh1 Qdc7 Qb4 Bd8 Qh4 Qf2 Bd3 e1Q Qa6 Qee5 Ne7 Qfe1 Nf5 Kg8 Kg2 h1B+ Kg1 Bc6 Nd6 Qe1e2 Bb5 Qee1 N2e4 Qed2 Ng3 Qb7 Bd3 Qbc7 Be4 Qb7 Qc3 Qbc7 Rb8 Nb6 Bh1 Bb5 Ba8 Qd7 Qd3 Qde6 Qc3 Rg7 Nge4 Qe7 Qc4+
2B3qn/2K5/rQ2rPk1/B2P3Q/N2r2bq/1nbNBQR1/q1q1r2r/3R1n2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kf7 Ke3 e5 f4 c5 d4 a5 g4 h5 b4 a4 f5 a3 g5 c3 d5 a2 b6 c2 b5 h3 f6 h4 b7 h2 b6 h3 Bg2 c4 Bf3 c3 Qe2 Ra6 Qg2 Nd7 b8B Kg6 b7 Nc5 Na3 Ne7 Be2 Bg4 Nb5 Nb3 Bd2 c1R Bf3 c2 Nc3 Rd1 Qe2 c1Q Na4 Qc2 Bb4 Rd4 Rd1 a1Q Ba7 Qaa2 b8Q Bh6 Qd6 Qg8 Ba5 Rh7 Qb6 Bf8 Kf2 e3+ Kg3 e4 Kf4 Rh5 Qg2 e2 Ke5 e1R Kd6 e3 Ne2 Bh6 Nc1 e2 Rg1 h1Q Qg3 h2 Qe5 Bf8 Bg2 Rh7 Bf1 Qhe4 Rg2 h1N Rg3 Rh2 Bh3 Qf4 Nd3 Qe4 Rg2 Ng3 Rg1 Nf1 Rg3 Bh5 Bc8 Qh4 Kd7 Bg4+ Kd6 Nc6+ Kc7 Bb4 Nc1 Bc3 Nd3 Kh7 g6+ Kh6 g7 Ne7 Re3 Ng6 Rh3 Nh8 Rg3 Qe6 g8Q Qe8 Qf8+ Kg6 Qa3 Qg8 Ra1 Rd1 Rc1 Rd2 Rd1 e1R Qac5 Rde4 Qf2 Rde2 Qf3 Rf4 Qb5 Rb4 Be3 Rd4 Qb6 Ref2 Bf4 Ree4 Be3 Re2 Qed6 Re8 Qe5 Re6 Qh5+
N1nR2q1/n1Q2Q2/4PP2/3B1b1b/2KB2N1/kr3q2/qrRBr1b1/q2qb2Q b - - 0 1 illegal: No proof kernel
q1R3nr/3n1KRr/q2P3Q/nqP2B2/2k1b3/bn3b2/N1nQN1bR/2Q3B1 b - - 0 1 illegal: No proof kernel
2nbr3/B2q2QK/kbPbn2P/1R1NrR2/r6Q/3n2Nn/B1q1B2b/3bQ3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 Kd3 d5 e4 Kd7 b4 Kc7 h4 Kb6 c4 a5 e5 f5 h5 a4 e6 f3 e7 f4 e8B a3 h6 a2 Rh5 g3 Na3 g4 Rg5 f2 Ne2 g2 Qd2 g1B Rh5 g3 Nc3 g2 Bb2 f3 Qd1 Na6 Be2 f1R Rh2 f2 Bf3 Nc7 Rh5 Ne7 Ne2 Bh2 Qc1 g1B Bf7 Bg4 Nc2 Ne6 Ne3 Qd7 Ng3 Nc8 Qe1 Ra4 Be2 Bd6 Rf5 Re8 Rb1 a1B c5+ Kb7 b6 Ka6 c6 Bh5 Qd1 Re1 b7 f1Q b8Q Qf2 Qc7 Qg2 Qd8 Bf2 Qh4 Qe4+ Kd2+ d3 Bd4 Bf3 Ba7 Bf6 Qc1 d4 Nd5 Bd8 b5+ Ka5 b6 Ka6 Bf1 Bd1 b7 Qg2 b8Q Re5 Qbb2 Be3+ Ke1 Qc2 Be2 Beg1 Qa1 Be3 Rb5 d2+ Kf1 d3 Kg2 Bd4 Kh3 B4b6 Bg4 Be2 Qf1 d1N Qe1 Nb2 Bf3 Bd1 Be2 d2 Bg8 Ra5 Kg4 Nd3 Kh5 Ra2 Kg6 Ra4 Bh5 Bg4 Bf7 d1N Kh7 N1f2 Qac3 Bd1 Be2 Nh3 Qa1 Re4 Qg7 Re5 Ne3 Nc7 Ba2 Ne6 Nd5
r1R1bqn1/q2n2Q1/1P3nn1/1Q2Nr2/2P2k1R/Bb1Bb3/Nn2K1Bb/2Nr4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 c4 Kd6 b4 Ke5 g4 a5 b6 h5 g5 d5 b7 f5 b5 f3 g6 f4 g7 f2+ Ke2 d3+ Kd2 a4 b6 h3 Qg4 f3 Nc3 a3 Nb1 h4 Kd1 d2 Qe6+ Kf4 e5 h2 Bb2 a2 Bg2 f1Q+ Kc2 d1B+ Kd2 d4 Ba3 h3 Qe7 d3 e6 f2 Nf3 Bd7 Qb4 Bc5 e7 Bb3 e8Q Qe7 Qa5 Rh5 Ng5 Be3+ Kc3 d2 Ne4 Rf5 Qg6 Be8 Qa4 Nd7 Rg1 h1R b8N h2 Nc6 Qf7 Nc5 d1N+ Kb4 Qf8 Ne5 Nb2 Kc3 Qd1 Qa5 f1N Qb5 Ng3 Qf7 Nh5 Ncd3+ Kg3 Qf6 Nf4 Nc1 Ng6 Rf1 Rg1 Rf4 h1N Rh4 Nf2 Qf7 Ng4 Qf6 N8e7 g8B Kf4 Bh7 Ng8 Qg7 Qdd6 Rh1 Qb8 Rh4 Bd4+ Kd2 Qa7 Nc3 Rd1+ Ke2 Be3 Rb1 a1B N3a2 Nd3 Qe7 Bc3 Qg7 Bb4 Rb2 Bd6 Rd2 Nb2 Rd5 Kg5 Rc5 N4f6 Ng4 Bh2 Rc7 Kf4 Rc8 N6e7 Bg6 Rfd5 Bf5 Ng6 Bd3 Rf5 Ne5+
2q1n1k1/n1B2r1Q/P1B1q3/q3q3/1bbB3N/1P2brR1/4r1RQ/rN1KRq2 b - - 0 1 illegal: No possible last move
q1B1N2b/2BnB1P1/1qQrQ1rR/3qbn1K/1R1r3b/NqR1q3/7P/k6b b - - 0 1 illegal: No proof kernel
r3Rn1K/1nb2qP1/1NBn1qbQ/r1bN2Pk/Q5rB/B6r/N7/n2Rr3 b - - 0 1 illegal: No possible last move, all moves rejected
Nr1Qb1n1/1N1q2P1/k1RB4/1b1P1R1q/1b2r2R/3QnB1n/1Nn4K/b4qn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 c5 Kg2 Kc7 d4 Kb6 e4 a5 b4 f5 g5 h5 d5 f3+ Kh2 h3 e5 f2 e6 h4 g6 a4 g7 a3 e7 c3 e8Q c4 Qdh5 c2 Be2 f1B Qf3 Rh6 Qb3 f4 Nc3 a2 Nd1 c3 Nf3 Re6 Ng5 f3 Kg1 h2+ Kf2 h3 Kg3 f2 Qd7 Nc6 Be3+ Nd4 Bf4 c1N Nf7 c2 Nd6 Re4 Qe7 Nd3 Rc1 a1B Qc4 Qc7 Qd8 Bd7 Qc3 Be8 Be5 Nf4 Nb2 Ka7 Bh5 Qd7 b6+ Ka6 Qe3 Bd3 b5+ Ka5 Qe2 Bc4 Qd3 Be7 Rcf1 c1N Be2 Nc2 b7+ Qc7 b6 Bcb5 b8N Qd7 Bd1 Ng2 Be2 Nge3 Na6 Rc8 Bh5 Ra8 Nc7 Ne2+ Kf3 Bf8 b7 Ng1+ Kg3 Rc8 Na8+ Ka6 b8R Be7 Rb7 Rb8 Rc7 Bf8 Re1 Be7 Re2 f1Q Nb7 Bb4 Bd6 Nf3 Rg1 h1Q Rf2 h2 Rgg2 Ng1 Rf5 Bg6 Rgf2 Be8 R2f4 Qhf3+ Kh4 Q3d1 Kg3 h1N+ Kh2 Nf2 Rh4 Nfh3 Rc3 Qg4 Rc7 Qg6 Bf3 Qh5 Rc6+
2BRb1B1/r1q2P1b/n2QNR1r/b1r5/4Pr2/2q2r1q/3N3Q/1RBkq1nK b - - 0 1 illegal: No proof kernel
n3RK2/qq1P4/Bb2N3/q1Nb1nN1/4b3/Br2Q3/kQ1nPnQr/2R1q2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 d4 h5 b3 f5 g5 a5 g6 a4 g7 f3 b6 h3 b7 a3 d5 f4 d6 h4 d7 c3 Ke6 c2 Kf7 a2 Bb2 c1Q Qd4+ c4 Qd5 c3 Bg2 c2 Qc6 f2 Nf3 f1N Qc7 h2 Nd4 f3 Qe5 f2 Na3 h3 Qc7 Nh6+ Kg6 Bc5 g8N Qe1 Kg7 c1N Qe5 Na6 b8Q+ Bb7 Nf3 Nd2 Qe3 f1B Ng5 Nc7 Nf6 Nd3 Nb5 Ra3 Rc1 a1Q Nd4 Na8 Nde6 Qa5 Qg8 Bb6 Kf8 Bd5 Nfe4 Nf5 N4c5 Nf2 Be4 Qa7 Bd3 Bfg2 Ba6 Bge4 Rg1 h1Q Rg4 h2 Rg1 Ra4 Ba3+ Ka5 Rg4 Rb4 Rh4 Qa2 Rh7 Qf3 Re7 h1N Re8 Rh4 Nf7 Rh2 Qg2 Rc4 Nfg5 Rc3 Nd3 Qa1 b4+ Ka4 b5 Kb3 Ndc5+ Ka2 Bb7 Bd8 b6 Rb3 Ba6 Bc7 b7 Bb6 b8Q Qc3 Qd4 Qa5 Qb7 Qg3 Qc3 Qc7 Qe3 Qc8 Qb8 Qc6 Qe5 Qcb7 Qb2+
1r2kq2/q1Pnb2B/3QqBr1/P3Q3/q1b2Kb1/1n4N1/RRBR2bb/N1n5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 e5 c4 h5 f4 b5 g4 d5 a4 b3 g5 b4 c5 b2 f6 b3 c6 d3 Ke3 h3 f5 h2 g6 d4+ Kf3 d2 c7 d3 a5 h4 g7 e4+ Kg4 h3 Nc3 b1Q Qe1 d1B+ Be2 d2 Qg3 e3 Na4 b2 Qe1 Qa2 Qf2 b1N Nf3 Nc3 Nb2 Qe6 Ra4 Na2 Qg3 Ba6 Ng1 Bc4 Kf4 Rh6 Nd3 Be7 Ne1 Nc6 Bb2 Nd4 Nc2 Nc1 Bd3 e2 Ra2 e1B Ne2 Rg6 Na1 Rb8 Bc2 Ndb3 Qg5 Qdc8 Ng3 Bg4 Bd4 Bf2 Rd1 h1B Qh5 h2 f7+ Kd7 f8Q Nf6 g8B Bg2 Qg5 h1Q Bh7 Bg1 Bc3 Bh2 Qfh6 Ne8 f6 Qg1 f7 Nf6 f8R Qa7 Qe5 Qd8 Rf7 Ke8 Bd4 Nd7 Rf6 Qd5 Rb6 Qe6 Rb7 Nbc5 Rbb2 N5b3 Rf1 d1Q Rf2 Qe1 Re2 Qb4 Rf2 Qa4 Rd2 Kf7 Bc3 Qf8 Bd4 Rg7 Qhf6+ Ke8 Qd6 Rg5 Qf5 Rg7 Bf6 Rg6 Qfe5
q3B1rN/7R/1q1bbK1n/NrRR1N2/1bQ3qB/bP4Q1/2n1nrkP/4q3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 c4 d5+ Kd3 Ke5 e4 f5 b3 a5 b6 g3 b7 f3 c5 g2 c6 a4 c7 f2 Ra2 a3 Rd2 Kf4 e5 a2 e6 a1B e7 g4 e8Q g3 Ne2+ Kf3 Qe1 g1N Qd1 g2 Qe6 f4 Bb2 Bd6 Qh6 Na6 b8R Be6 c8N Qb6 Ba3 Bc3 Rb7 Rb8 Qe1 Bcb4 Nc1 Ne2 Re7 g1B Qg6 Nh6 Rd7 Rg8 Ne7 Rb7 Bh3 f1Q Nf5 Qg2 Qf7 Bf2 Rc2 Bh4 Rc5 Bhe7 Qc3 Kf2 Bg4 f3 Bh5 Qg4 Rdc7 Kg2 Rd1 f2 Nd2 f1R Nc4 Rf2 Na5 Rbb8 Qg7 Bf8 Qc4 Bfe7 Kc2 d3+ Kb2 d4 Be8 d2 Nd3 Bf8 Ne5 d3 Ng6 Qf3 Qe5 Qa8 Rh7 Rb7 Nh8 Bfe7 Rc1 d1Q Rd5 d2 Rc3 Qe1 Qg3+ Kf1 Rc1 d1Q Rc3 Qdd4 Kc2 Qh4 Kd3 Qg4 Bc1 Ba3 Bg5 Bdb4 Bh4 Bed6 Qgf4 Kg2 Ke4 Nc7 Rc1 Nb5 Rc2 Nbd4 Rc3 Be7 Ke5 Bed6+ Kf6 Rb8 Qc6 Nc2 Rcc5 Qba6 Qc7 Rb5 Qc4 Qb6 Qb8 Bf8 Qe5 Bd6 Qg3+
n2K2R1/Q5B1/r1N1b3/2PN1Q1B/n1R2N2/bP2qqk1/nq2q1b1/r1bBr3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 h5 e4+ f3 g3 f5 b3 a5 b6 a4 e5 d3 b7 a3 e6 h3 e7 d2 Kd6 f4 Qe1 d1N Be3 f2 Bd2 h2 Bg2 f1R Be4 a2 Qf2 h4 Bc3 h3 Be5 f3 Bg7 Re1 Bf6 Rh6 Qb2 f2 Qc2 f1B Qd3 Qe8 Kc7 d5 Be5 d4 Qd2 d3 Bd5 Nc6 b8Q Be6 Qc8 Nc3 Bf6 Na4 Qf2 d2 Nc3 d1Q Bg7 Nb4 Rc1 a1B Qa7 Bg2 Nge2 Bb2 Rg1 h1Q Nf4 h2 c5 Qe2 Be4 Nf6 Bc2 Na2 Ncd5 Nd7 Bd1 Ndb6 Rc4 Ba3 Qd7 Kf3 g4 Kg3 g5 Rf6 g6 Qb2 Bh8 Bh6 g7 Qh5 g8N Qhe2 e8B Rg6 Rf1 Qg1 Nge7 h1Q Bg7 Qge3 Nc6 Qhh5 Qf7 Qhf3 Qf5 Rf6 Bh5 Rg6 Qb7 Ra5 Qa7 Na8+ Kd8 Ra6 Qd3 Rg4 Rf2 Rh4 Qf5 Rhh1 Bc2 Ra1 Bd1 Re1 Rf1 Qee5 Rg1 Q5e4 Nh3 Bc1 Nhf4 Q4e3 Qh3+ Kf2 Qf5 Bh3 Bh8 Bf1 Rg8 Bg2 Bg7 Kg3 Rc3 Qb5 Rc2 Qbe2 Rc4
1q1Bnqr1/qq1PRB2/Pn5N/2N1R3/3br3/bQ6/K1b1Nr1r/RQ2k1n1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 a4 Ke7 g4 Kf6 e4 Ke5 d6 Kd4 e5 h5 e6 c5 d7 f5 e7 b5 e8R b3 g5 f3 g6 b2 a5 f2+ Ke2 h3 d3 h4 Kd2 h2 Kc2 f4 Kb3 f3 g7 c4+ Ka2 b4 a6 h3 Nd2 Kc3 d4 b1R d5 Qc7 d8Q Nd7 d6 b3+ Ka3 b2 Re2 Nb6 Qe1 Qa7 Qc7 Nf6 g8N Bg7 Re8 Bf5 d7 Bc2 Bg2 f1R Rc8 f2 Ne7 Ne8 Nf5 Bd4 Bc6 Rh4 Bd5 Re4 Be6 Kd3 Bd5 c3 Ne2 Rb8 Rg1 h1Q Rg4 h2 Bb3 Qg2 Qd6 h1N Rc6 Ng3 Bf7 Rh1 Rg8 f1Q Rc8 Rh2 Nh6 Ke3 Qd1 Kf2 Nb3 Ra8 Qd3 Ke1 Bg5 Rb8 Nec1 Ne2 Qb5 Ng1 Qdb4 Qf4 Be7 Qd6 Bf6 Qf8 Rg5 Ra8 Rc6 Qg3 Re6 Qgb8 Bd8 Qbb7 Na2 Rc1 Ree5 b1Q Nc5 Rd1 Qd3 Rdd2 Nc1 Rdf2 Re7 Qbb8 Qbc4 Qb5 Rf5 Qc6 Qb4 Qcb7 Rfe5 Bb3 Qdc4 Qg8 Rb1 Qd6 Qd5 Nf6 Ne2+ Bd1 Qb5 c2 Ra1 c1B+ Ka2 Bc2 Bc7 Rf8 Qdc4 Ne8 Bd8 Qdb8 Qb1 Qg7 Qd3 Rg8 Qdb3 Qf8 R7e6 Kd2 Re7 Ba3 Nc1 Ke1 Ne2+
2n2n1K/1NPb1q2/QP5N/B4qn1/1Rkr4/BR1rq2n/2bb4/1QrQ1B1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 a5 e4 h5 c4 d5+ Ke5 f5 g4 h3 g5 f3 b6 f2 b7 h2 g6 h4 b3 d3 g7 a4 Bb2 a3 Qc1 f4 Nf3 d4 Qd2 h3 Nc3 a2 Ne2 Ne7 Kf6 Ra4 g8Q Bh6 e5 Qb6+ e6 Nd7+ Kf7 Nf8 b8B Bd7 Ng3 Nc8 Ng5 f3 Rb1 a1R Qd1 d2 e7 d3 e8Q R1a3 Rg1 h1N Nf5 h2 Qee1 Ng3 Bc7 h1B Qg6 Ne4 Ne6+ Kb4 c5 Ng5+ Kf6 Kb5 b4 Kc4 c6 Qe3 b5 Rb4 Be2 f1Q Rg3 f2 Nd8 Rc3 Ba3 Rc1 Nb7 Qh3 Qh5 f1Q Ba5 Rg8 Qa4 d1N c7 Nf2 b6 Qg4 Qed1 Nfh3 Qg6 Qff2 Bf1 Rg7 Bg2 d2 Rb3 Qge4 Bf1+ Q4d3 Rg2 Re7 Rg1 Re4 Rg4 Rd4 Re4 Qff4 Re5 Qff3 Rb5 Qh5 Qe2 d1B Qe1 Bc2 Qd1 Nge6 Kf7 Neg5+ Kg8 Rd6 Qh7 Qf7+ Kh8 Rd4 Bg2 Qde4 Bf1+ Rd3 Qg6 Nge6 Qh7 Bf4 Nh6 Neg5 Qg7 Qef5 Qb2 Bg3 Qb1 Be1 Re5 Bd2 Qb5+ Kd4 Qa6 Rc4 Rb4 Kc3 Reb5 Rcd4 Rb3+ Kc4 R5b4+
2BQn1n1/RP1RRbBK/2b2Q2/rb1r2b1/B1Nq1q2/q1knr2P/1q2N3/8 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 a5 e4+ d3 e5 g5 c3 d5+ e6 f3 h3 f2 b6 d4 b7 a4 b5 g3 b6 g2 Ra3 g4 Bb2 g3 Qf3 Na6 b8R Qf6+ Kg4 Bd7 b7 Rh5 Qd1 Bc6 e7 Rd5 e8B Be7 Bd7 Nc7 Ne2 g1R Bc8 g2 Rh2 d2 Rh1 d3 Qe1 d1N Ng3 Raa5 Qe5 Ne8 Be2 f1Q Kh5 Nf2 Ra1 a3 Bf3 a2 Qf5 d2 Bd1 Nd3 Ra8 Qf4 Ba4 d1B+ Ne2 Bb3 Ra7 Re1 Rf1 g1Q Nd2+ Kc5 c4 Kb4 c5 Qgd4 Rc1 a1Q Rd1 Qa3 Nc4 Q6e5 Rf2 Bg5 Qf6 Ba2 Ba1 Qdb2 Rf3 Qed4 Re3 Bb3 Re7 Ba2 Qe5 f5 Kg6 Bb3 Qf6 Ba2 Nc1 Kc3 Kh7 Re3 Rd2 Qh2 Rd1 f4 Rd2 f3 Ne2+ Kb4 Rd1 f2 Rd2 f1B Rd1 Bb5 c6 Qhf4 c7 Bg2 Bf5 Rd8 c8Q Bgc6 Be6 Rd7 Qd8 Rd5 Bc8 Rde5 Nd2 Bf7 Nc4 Rd5 Rg1 Bh4 Rg7 Bg5 Rd7 Bh5 Rge7 Bg6+ Kh8 Bf7 Kh7 Qde5 Rd6 Qd2 Qe6 Qef6 Bd4 Qdb2 Rdd7 Q6e5 Qf5 Qee4 Bg7 Qed4 Ng3 Kc3 Qg6 Ree5 Qf6 Re3 Ne2+
4N3/BKn1Q2r/7b/3R4/qn1b2rP/PN1n3b/bbn1b2B/RQ1rRBk1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 h4 c5 e4 b5 a3 f5 Nf3 g5 Bh3 g3+ Ke2 b3 Kd3 b4 Kc4 b2 Kb5 g2 Qe2 g1B Qe3 c4 Qc3 g4 Nfd2 f3 Qb3 f4 Ra2 g3 Nc3 b1R Qa4 f2 Nf3 f1N Nd2 f3 Ra1 f2 Be6 b3 Na2 c3 Bf5 g2 Bh7 c2 Qa5 b2 Rh2 Qd7+ Kb6 Na6 Nb3 Nc7 Nc3 Ne7 Be3 c1N Rh1 Qa4 Qb5 Bh3 Kb7 Nd3 Qb6+ Nc6 e5+ Ke7 d6+ Ke6 d7 Rd1 d8Q b1B Nb5 Bh6 Qe7+ Kd5 e6 Ba2 Nd6 Rag8 Ne8 Ncb4 Bg6 Kc4 d5 Rh7 d6 Kd5 Bf4 Ne3 d7 f1B d8B Be2 Bh2 Nec2 Qb5+ Bc5 Re1 g1B Bh5 Ke4 Bf3+ Ke3 Bg2 Kf2 Bf1 Nca6 Bb6 Nc7 Ba7 Bd4 Qb6 Bh5 Re5 Be2 Rd5 Rg4 Qbc5 Ne3 Qc1 Nec2 Qb1 Bhe3 Qc5 Bb2 e7 Bed4 Ng7 Be3 e8R Bed4 Qe7 Be3 Bb8 Bh6 Ba7+ Nc5+ Kc8 Bd3 Qd7 Bb5 Re1 Be2 Rd4 Ncd3 Ne8 Kf3 Rd5 Bgd4 Qe7 Kf2 Bd6 Kg1 Kb7 Bc3 Bg3 Bb2 Bh2+
2Rrn1K1/1r3BPr/R6P/b1B1Q1rQ/2k3Nq/bbb1r3/1n4Q1/N1n3rB b - - 0 1 illegal: No proof kernel
2N1bq1B/5rR1/R4Q2/PPN1Q2r/1b1qb1Q1/b2bkB1r/bn3n1r/2K2N2 b - - 0 1 illegal: No proof kernel
1RQ2NB1/Qq1n3r/5b1P/1r2kP1K/1rbR3B/2b2RN1/r3q1r1/1Q1rnb2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Ke6 f4 d5 h4 a5 b4 g5 b6 g3 b5 e3 Kf3 a4 Kg4 g2 h5 e2 h6 e1R b7 a3 c5 d3 f5+ Ke5 c6 d4 b6 d2 c7 a2 Ba6 d3 Qb3 d1R Ne2 g1R+ Kh5 d2 Rh4 g4 Rh3 g3 Rh2 g2 Kg4 Bg7 Bc4 Nd7 b8R Ba6 c8Q Nc5 b7 Qd7 Qb5 Nf6+ Kg5 Rh7 Qb4 Nd3 Ng3 Re4 Qb6 Ne1 Bb3 Bf1 Qcc6 Rb4 Na3 e6 Rb1 a1B Nc2 Ra2 Rh5 Bc3 Qd8 Rh1 Bd5 g1R Qcb6 Rg2 Rb3 Qc7 Qg8 Nd7 Rh4 Bf6+ Kh5 Qc8 Bb2 Rb1 Nd4 d1B+ Qg4 Bc2 Qa7 Bcd3 Qd1 Bc4 Bc1 Rb5 Bg5 Rbb2 Ra3 R2b4 Qb1 Qc7 Rg8 Qc8 b8Q+ Qc7 Qba8 Qb7 Rb8 Nc2 Qb3 Bfd3 Bc1 Bb2 Rf8 Kd6 Rh8 e5 Be6 e4 Bg5 e3 Qg8 Ba1 Qb1 e2 Bf7 e1Q Ne6 Rf1 Rd4+ Ke5 Bh4 Qd2 Rb3 Rd1 Qe8 Bf1 Rf3 Bc3 Rf8 Bb2 Bg8 Bc3 Qea8 Qd3 Rd8 Ne1 Nf8 Qe2 Rc8 Qb6 Qc6 Qc7 Rb8 Qb7 Qc8
NB2R3/RBq1R1B1/3k1P2/2bn1nrQ/rq1q1NQn/2P4q/4b2n/2n1Kn2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 g4 d5 f4 Kd7 b6 e5 f5 h5 b7 a4 c3 e3 g5 d3 g6 d4 b5 d2+ Ke2 a3 b6 e4 f6 h3 g7 a2 Nf3 h4 Nh2 Nh6 g8Q Bc5 Qgb3 Ra4 Qbc2 Qc7 Qe1 d1N Nf3 h2 Rg1 h1Q Qg3 h3 Qd2 h2 Qf2 d3+ Ke1 e2 Rg3 Na6 b8B Nf5 b7 Rg8 Ba7 Nb4 b8R Rg5 Qc2 Nd5 Bb6 N1e3 Nfd2 Kd6 Nf3 Ba6 Qg1 Nh4 Re8 Nef5 Nd4 d2+ Kf2 e1N Qd1 Bc4 Re3 Nef3 Qg4 Ba6 Qe2 d1Q Ne6 Qd4 Nd2 Bc4 Qd1 Be2 Nf4 Qb4 Ba7 Qd4 Rb1 a1Q Bb8 Qa3 Rb7 Qab4 Qh5 Ne5 Ke1 Ng4 Re7 Qg2 Ra7 h1N Ba3 Qh3 Bg2 Nhg3 Re8 Nh2 Nc4+ Kc6 Bh1 Ngf1 Nb6 Kd6 Re7 Qe5 Na8 Qed4 Rg3 e3 Bf3 Nb6 Bb7 Nd5 Rg2 Bc4 Qdg4 e2 Rg3 Bb5 Rge3 Ba6 Kf2 e1N Bc1 Nd3+ Ke2 Ne5+ Ke1 Be2 Bd2 Nc6 Re8 Na5 R3e7 Nb3 Ng2 Rg6 Bh6 Rg5 Bg7 Nc1 Nf4
2rr1r2/1Bbb1Pn1/1B5K/6NN/2B1N3/qb2RR1P/2b2Qbn/krnQ1n2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 f4 Kf6 a4 b5 c4 d5 a5 g5 h3 e5 a6 e4 c5 d3+ Ke3 d4+ Kd2 g3 c6 b3 c7 g4 a7 e3+ Ke1 b4 Ra3 e2 Kd2 e1R Bb2 g2 Bc1 g3 Qh5 b2 Qh7 b3 Ra5 Qe7 Rd5 Nd7 Nc3 b1B Nd1 b2 Be2 Ne5 Rh2 Qa3 Rb5 Rf1 Rb8 Bd6 Rb3 Bc2 Rh1 b1R Rb7 Ng4 Nb2 Ne3 Rb3 Ne7 Qh5 Rd8 Nf3 g1N Ng5 Bd7 c8N Bc7 Nd6 Rac8 a8B g2 Bb7 Rf3 Bf1 Ne2 Rh2 g1N Rf2 Ng4 Rc3 Ng3 Be2 Nh2 Nde4+ Kg7 Bf1 N1e2 Qg4 Bb3 f6+ Kg6 f7 Nef5 f8Q Ng7 Qc5 Bd5 Qh5+ Kf5 Rb3 Nc3 Re2 Na2 Re3 Rf2+ Qe2 Rf3 Qd1 Rf2+ Be2 Ngf1+ Ke1 Rf3 Bd2 Nc1 Ba5 Rf2 Bb6 Rf3 Nf2 Kf6 f5 Rf4 Nfe4+ Ke5 Rf3 d2+ Kf2 d3 f6 Rf5 Kg2 Rf4 Qf2 B5c6 Qc2 d1B Rc3 d2 Bc4 Bd5 Rce3 B5c6 Qd3 Bb3 Qc2 d1B Nd3+ Kf5 Qcd2 Bdc2 Qd1 Bd5 Rg3 Rf3 Nf4 Ke5 Nh5 Rf5 Rgf3 Rf4 Nc5+ Bde4 Bd3 Kd4 Bc4+ Nd2 Kg3 Bd5 Bd3 Kc3 Nce4+ Kb2 Bc4 Rf5+ Kh4 Ka1 Nc5 Ndf1 Nce4 Re5 f7 Ree8 Ne6 Rh8 Kg5 Rhf8 Kh6 B5c6 N6g5 Bd5 Nd2 Bde4 Rf5 Bf3 Nde4 Bg2 Rff3
3n2N1/B2QP2k/B1b2b2/nP1r1B1K/1Rr2Q2/r1q3r1/1rNn4/qR1r2nQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 d5 Kf3 h5 e4 a5 b4 f5 c4 Kf7 g4 Kg6 e5 d3 g5 h3 c5 h2 c6 d4 b6 d2 b5 a4 b7 h4 e6 d3 e7 a3 c7 a2 Qc2 h3 Ne2 Nc6 b8Q Bd7 c8B Qc7 Rg1 h1R Qc3 h2 Qe5 Bg7 Qb7 Nh6 Qe4 Rg8 Qb4 Kh7 Ba3 Nf7 Nbc3 Nfd8 Rb1 a1Q Bc1 Ra3 Bg2 Na5 Kf2 f3 Nd4 f4 Ne4 Qcc3 Rb3 d1N+ Kf1 d2 Nc2 f2 Ke2 f1R Bh3 Rf3 g6+ Kh6 Nf6 Nf2 Be6 Nh3 Ne3 Rg3 Qc6 Rg4 Kf3 Bh8 Qce4 Bc6 g7 Rh4 Rf1 Rg1 Qd4 h1R Rb4 Rh2 Ba6 Rg5 Qd7 Rd5 Bf5 Rg2 Re1 Re2 Qc4 Rh2 Qf1 Rg4 Qh1 Ng1+ Ke4 Rg3 Rd1 f3 Kf4 f2 Bb2 f1N Rb1 Qc4+ Bd4 Qcc3 Bc5 d1R Ba7 Rgh3 Kg4 Rb2 Nc2 Nd2 Be6 Rf8 g8Q Rf7 Qge8 Kg7 Ng8 Rg3+ Kh4 Kh7 Qf8 Rf4+ Bg4 Rfd4 Qf4 Rc4 Be6 Be5 Kh5 Bf6+ Bf5+
3Bb3/1bb1q1r1/1b4Nb/bNQB4/4R2b/n1P1R2K/b2PqQr1/4knQR b - - 0 1 illegal: No proof kernel
qBR3n1/2r4N/2Q4b/2Q1NBbr/qP4P1/1n2qNk1/1K1Q1q2/Rb2nnb1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Kg6 g4 Kg5 c4 Kf4 Kc2+ e3 c5 d5 b6 h5 c6 e5 b7 a5 f3 e4 c7 h3 Kb2 h4 Nc3 h2 Ka3 d3 Ka2 a4 Ba3 h3 Be2 d4 Bb2 a3 Na4 d2 Qf1 d1N Ba6 e2 Nb6 e1B Nc4 e3 Rc1 d3 Ka1 d2 Qg2 a2 Qf2 e2 Rc3 Bf5 c8N Qb6 Rb3 Ra7 Ne3 Nd7 b8Q+ Rc7 Ne7 Bb1 Nc4 Ne3 Qc8 d1Q Ne5 Rh5 Bd3 Nf1 Rc3 Bh6 Bf5 Qe3 Qa8 Bg5 Qc6 Bd2 Bc1 e1N Kb2 Bh6 Rc2 Nc5 N7g6+ Kg5 Nf8 Kf4 Qg2 Nb3 Nh7 Bg5 Qe2 Kg3 f4 Bh6 Ngf3 a1B+ Ka3 Bd4 Qd3 Bb6 Kb2 Qf2 Rc5 Be3+ Qd2 Bg5 Bd3 Bh6 f5 Beg5 f6 Qde2 f7 Qee3 f8Q Ba7 Bf5 Bb6 Nh4 Ba7 Ng2 Bb6 Rg1 h1Q Nh4+ Qhg2 Rc3 h2 Qfc5 h1Q Rc4 Qh3 Rh1 Qd5 Nhf3 Qd8 Rc3 Qa8 Ng6 Qee8 Rc4 Ba2 Qe6 Rd7 Qc2 Qg1 Qf8 Qhh2 Rc6 Ng2 Nf4 Nfe3 Ng6 Qa4 Qd1 Qea8 Rc8 Qe1 Qc2 Qd2 Rd1 Ne1 Qc6 Nf1 Qe7 Bg1 Qec5 Qd3 Qe2 Qf2 Bf4+ Kh3 Bg3 Qde3 Bb8 Rc7 Qd2 Kg3 Ra1 Bb1 Nge5
1qq1nR1b/2b2K1B/4QP1P/r2R2Bn/N1Q2N1n/bb3q2/R4r2/nkN2q2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kf5 h4 g5 b4 e5 c5 d5 c6 a5 h5 e3 Kd3 g3 b6 e4+ Ke2 a4 h6 d3+ Ke1 d4 b7 d2+ Ke2 a3 b5 g2 b6 a2 c7 g4 Qb3 g3 Rh3 Na6 b8N Nf6 b7 Nh5 Nc3 Ba3 Nb1 Be6 c8R Nc7 Nf3 g1Q Rh4 g2 Nc6 Qh2 b8Q g1N+ Kd1 e2+ Kc2 e1B Qc4 e3 Kb3 Ke4 Bh3 e2 Nb4 d1Q+ Nc2 Bg3 Qb6 e1B Ne5 Ra5 Nd3 Qf3 Nb4 Ne8 Nd5 Rf8 f5+ Bf4 Bg4 Bc7 Bg5 Bc3 N5f4 Qf1 Rh3 Nf3 Nc1 Nh4 Rd3 Qd7 Rd8 Qc8 Rf3 Bf7 Rd5 Qg3 Rf2 Ke3 Qba6 d3 Qe6+ B3e5 Bh3 d2 Nc3 Qf3 Na4 d1Q+ Rc2 Qd4 Rf2 Qde4 Bg4 Bh8 Bh3 Qe5 f6 Rg8 Bf5 Rg7 Be4 Qd6 Rb1 a1N+ Kc3 Qb6 Ra2 Qbb8 Rbb5 Bg8 Rd8 Rd7 Rf5 Rd2 Rfd5 Neg7 Rf8 Ne8 Qb4 Re2 Kc4 Bf7 Qb5 Rb2+ Bd3+ Kd2 Kd4 Kd1 Bh7 Rf2 Qc5 Bg6 Qb4 Bc2 Qc4 Bb3 Qf7 Nd6 Ke5+ Rd2 Ncd3 Rf2 Qd7 Ne8+ Ke6 Qcb7 Kf7 Qa6 Qe6 Qac8 Nab2+ Kd2 Qd4 Kc2 Qc4+ Kb1 Nc1+ Q3d3 Na4 Qf5 Nfd3 Qf3 Nf4+
qBq2nqR/b1nNr1r1/bBbP2Pn/2b5/1n2q1Q1/4Q3/3k3R/K2B2QN b - - 0 1 illegal: No possible last move
1Rr1b3/q2N1Br1/nN1B2Nr/2r1b2k/5q1Q/1r2Q2P/p1PK1R1n/q4bQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 d5 b4 g5 b6 a5 e5 f5 e6 d3 e7 Kf7 e8N Kg6 h3 d4 b5 d2+ Ke2 g3 b7 a4 b6 f3+ Kd3 f2 Bb2 f4 Ng7 g2 Ke2 a3 Ne6 d3+ Kf3 a2 Be2 f1Q+ Ke4 f3 Ke3 g4 Nc5 f2 Qe1 d1Q Bc1 g3 Ne6 d2 Bb5 Qc7 Bc4 Nf6 Nc3 Bd6 Nf3 g1R Ba3 g2 Nd5 Rh6 Rh2 Bd7 Nh4+ Kh5 Nf8 Na6 b8Q Qa7 Qd8 Be8 Rb1 Rc8 Nd7 Bc7 Bb3 Be5 Bd6 Rh1 Rb2 g1R Bc4 Rg8 Ng6 Qa1 Rb5 d1R Qd2 Qa8 b7 Rg7 b8Q Qa7+ Qbb6 Rb1 Qdd4 Ng4+ Kd2 Rb2 Rg2 Nh2 Qbc5 Rb1 Rb8 Rb5 N5b6 Rg1 Qa3 Rbc5 Bf7 Qc4 Qg3 Rb1 Qde3 f1B Rf2 Qf4 Qg1 Rb3 Qh4+
nB5q/Q1b3B1/q5r1/k1K1NrR1/1RB3nr/RpQ2qPN/b1n2nP1/3n4 b - - 0 1 illegal: No possible last move
qR2n3/Q1bNqr2/1RB3N1/5bQ1/kbK1P3/1rnP2bb/B3N1p1/r1Bq4 b - - 0 1 illegal: No possible last move
2N1Nbbr/1Bb5/Qn1rR1Qn/4n2K/q1r1P2N/Prp1krBq/1R6/R7 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 Kd6 h4 c5 e4 b5 h5 g5 h6 f5 a3 f3 Kg3 f4+ Kf2 b3 h7 b2 Rh4 g3+ Ke1 b4 Nh3 g4 Qa4 g2 Kf2 g1B+ Ke1 f2+ Ke2 g3 Kf3 c4 Qa5 g2 Nc3 b1R Qa4 b3 Rh6+ Be6 Ng5 Nd7 Qa6+ Nb6 Na4 c3 Bd2 b2 Be1 Qe8 Nf7+ Kd7 d6 Kc6 d7 Rd8 Be2 Bh2 Nd6 f1R+ Bf2 Bd5 Kg4 g1N Bg3 f3 Re6 f2 Bd3 Rc8 d8Q Nf3 Qf6 Rbd1 Qg6 b1R Kh5 Ne5 Be2 Ba2 Bc4 Nh6 d5+ Kd7 Be2 Rc4 Bd3 Qa8 Ne8 Rb3 d6 Kc6 Be2 Qa7 d7+ Rd6 d8R Qa8 Rb8 Qa7 Nb2 Kc5 Na4+ Kd4 Rb7 Ke3 Rb8 Nd5 Nb6 Qd7 Nc8 Qa4 Bg4 Nb6 Bf5 Re1 Bh3 f1Q Bf5 Qg2 Bg4 Rf1 Be2 Rg8 h8N Rf3 Bf1 Rc7 Bb5 Rc4 Bc6 Qh1 Bb7 Qf1 Qf5 Qd3 Ng6 Rh8 Nh4 Qf1 Ra8 Qh3 Qg6 Rb2 Rg1 Rd1 Qf6 Nd3 Bd6 Rd4 Re7 Nd7 Rb8 Bg8 Re6 Rc4 Ba8 Rbb4 Rb5 Nb6 Bb7 Rbb1 Qg6 Bf4 Rbg5 Rb3 R5g2 Bh2 Rb2 Be5 Bb4 Bc7 Bd6 Rd2 Bg3 Ne5 Rc1 Rd6 Ra1
R2QQ3/n4n1K/1N1R1q2/3q1kB1/2RrP1pP/N1r2Bb1/1b2n3/qq1q1bB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Ke6 h4 g5 b4 d5 c5 a5 e3 f5 b6 a4 b7 d3 c6 d4 c7 a3 b5 g3+ Kf3 g2 b6 a2 Na3 d2 Qb3+ Qd5+ Ke2 d1Q+ Kf2 f3 Kg3 d3 Qb1 d2 Ne2 g1N Qb4 f2 Qf4 g4 Bb2 Ra4 Bg2 f1Q Qd4 Qb1 Nc3 d1Q Bf3 Nc6 Kf4 Ne2+ Kg5 Bd6 Kg6 Bg3 b8B Ba6 c8R Nh6 b7 Na7 Rc4 Rc8 Kh7 f4+ Qd3 Rb4 Na4 Nf7 Nb6 Qfe1 Bh8 Qc3 Bg7 Qf6 Bh6 Ra4 Bg5 Rc6 Rc5 Rd4 Rc4 Rc5 Be5 Rc7 b8Q Rc6 Ra4 Rc3 Rc4 Bb5 Qg6 Ba6 Qd8 Bb5 Be4 f3 Bef4 f2 Bf3 f1Q Rg1 Bf2 Bh2 Be1 Rg2 Bg3 Bg1 Qfe1 Nc2 Ba6 Qgg8 Bb5 Qge8+ Kf5 Na3 Nf4 Rc5 Bf1 Rd2 Ne2 Rc8 Qbb5 Rc1 a1B Ra8 Qb1 Rcc2 Bb2 Rd3 Rc8 Rc6 Qea5 Rd6 Rc1 Rc3 Qaa4 Rc4 Rc3 Nb5 Qaa2 Na3 Qaa1 e4+
2n2Bqr/8/bbb1Rb1R/1n1k1B1Q/4pK1Q/5P1r/1BR3P1/rN1qbqN1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Ke6 b4 d5 f3 a5 c5 h5 c6 h3 b6 d3 Ke3 a4 c7 d2 b5 h2 b7 a3 b6 a2 Qe1 d1B Bd2 d4+ Kf4 d3 Ke3 h4 Qe2 h3 Ba5 d2 Qa6 Ba4 Ne2 d1Q Be1 Nc6 b8R Kd5 b7 e5 Qa7 Nd4 Qb6 Bc5 Qg6 Bb6 Qg4 Bc6 Ng1 Ne7 Bd3 Qg8 Bb4 Nb5+ Bc5 Ra6 Qh4 Ra4 Ra8 Qf1 b8B Ba6 c8Q Ra3 Qf8 Nc8 Qe8 Ra4 Na3 Ra5 Rb1 a1B Rc1 Bc3 Nb1 Ra1 Qg6 Bb2 Rc2 Qd1 Kf2 e3+ Kg3 e2 Bf5 e4 Bf8 Bf6 Be5 Qf1 Kf4 e1B Ne2 Bbf2 Qgh5 Bb6 Rg1 h1Q Bb2 h2 Ra7 Bb4 Re7 Qd1 Re1 Qf1 Ng1 h1R Re8 Rh3 Re6 Qd4 Rd1 B4a5 Rd3 Be1 Ra3 Qd1 Rac3 Bcb7 Rc7 Ba8 Rh7 Bc6 Rh6
1BnqQ1B1/6r1/1bK1n3/r1RBqb1Q/1NN1pQP1/4r2b/nR2n2P/2nk4 b - - 0 1 illegal: No proof kernel
N1b3N1/2kn1B2/q3r3/3b2b1/QRprPPnb/Q5r1/3N3q/B1K1nbRQ b - - 0 1 illegal: No proof kernel
1nNB1bR1/1q3b2/3R1K2/qq2NB2/kPP5/2pr3r/Rb1b2N1/bQ1Qr1n1 b - - 0 1 illegal: No possible last move
1N4k1/2NbN2r/2R1q2b/1Rr3bB/1p4Pq/3PQ1Bb/1K3Q1q/nQn1bn2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 a4 b3 g4 Kf7 f4 e5 d3 c5 Kd2 b5 Kc3 h5 d6 b2 a5 b4+ Kb3 c4+ Kc2 e3 a6 h3 a7 h2 d7 e2 f5 h4 f6 h3 Bg5 e4 Bh4 e1B Nf3 c3 Ra6 Ne7 Qc1 Bd2 Ra4 e3 Ra2 e2 Qd1 Rh7 Bg5 Na6 Bf4 Nc5 Ne5+ Kg8 Nc6 e1B Bg3 Bfh6 Nb8 Nb3 Ra6 Nd5 Bg2 Qe7 Rf1 Bdg5 Rf5 h1Q Na3 Qe4 Nb5 Qe7 d8N Qe6 Bf4 h2 Be4 Bd7 Nc7 Qg1 Ndc6 h1B Kb1 Bg2 f7+ Kf8 Kc2 Bh3 Ne7 Qh2+ Qe2 Kg7 Rc6 Ne3+ Kb1 Nf1 Qe3 c2+ Ka2 Kh8 f8Q+ Qg8 Qf7 c1N+ Kb1 Qg6 Ra5 Qh5 Bg3 Qh4 Qff2 Kg7 Bg6 Kh8 Kc2 b1Q+ Kd1 Qb2 Bh5 Qf6 Kc2 Qe6 Kb2 Kg7 Nba6 Rb8 a8Q Rb5 Nb8 Rc5 Rb5 Kh8 Qa2 Na1 Qb1 Kg7 Nf5+ Kg8 Ne7+
1nb2q2/KQrbbkN1/R4Qn1/1r1PQ3/5Bnb/2N1r2B/P1pbN1R1/3q4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 b5 h4 f5 d4 g5 e4 c5 e5 c4 d6 c3 h5 c2 e6 b3 h6 b4 h7 b2 d5 g3+ Ke2 g2 Kd3 g4 Kc4 g3 Kc5 f3 e7 f4 d7+ Kf7 Nc3 b1Q Qd4 b3 Kb5 b2 e8N f2 Nc7 f3 Kb6 Be7 Bd2 Qf8 d8Q Ra3 Nh3 g1B Na4 g2 Qc3 Qd1 Ne6 b1R+ Bb5 f1N+ Qc5 f2 Ng7 Nh2 Qcc7 Ng4 Ka7 Re3 Nc3 f1B Nf4 Bf2 Bd7 g1B Qb7 Bfh4 Nfe2 Bh3 Rh2 Rb5 Rb1 Bgf2 Rg2 Be1 Bc1 Bd2 Bf5 Rc5 Rb6 Rb5 Bd7 Ba3 Ra6 Ne7 Qdc7 Ng6 Qe5 Bae7 Bf5 Rg8 h8Q Bd7 Qh6 Rh8 Qg5 Rh7 Qgf6+ Kg8 Bd3 Bc8 Qa8 Bd8 Nf4 Re4 Bf1 Bde1 Rf2 Nh2 Be3 Bd2 Qb7 Bhg4 Ngh5 Rc7 Bh3 Bgd7 Rg2 Ng4 Nfe2 Be7 Bf4 Re3 Qc6 Kf7 Ng7 Qa1 Qcd6 Qd1 Qdf6+
1q1b1QBn/4Q1r1/2n1b2r/k1pNPBP1/5q2/b3R2b/1n2K1R1/2R1BrbN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 d4 Kd7 e4 Kc6 g4 Kb6 b4 a5 d5 f5 d6 h5 b5 c3 g6 a3 d7 c2 g7 a4 g5 f3 Qd2 a2 Qe3+ Ka5 b6 a3 b7 f2+ Ke2 h4 Nh3 f4 Qd4 f3+ Kd2 Nh6 g8B Nf7 Kd3 Nc6 b8Q Rh6 Nd2 Nh8 Qe3 Ra7 Ng1 h3 Bc4 h2 Bb2 c1Q Be2 f1B Nb1 f2 Bg8 Bh3 Bg4 f1R Bf5 Be7 Qe2 Qf4 Nc3 Bf8 Rc1 a1B Qa8 a2 Nd5 Ba3 Be5 Qf8 d8R Be6 Re8 Bd4 Rc2 Bf2 Bc3+ Qb4 Rc1 a1B Be1 Bf6 Re7 B2d4 Qf8 Rb7 Re8 Bd8 Qe3 Ba7 Ne2 Bc5 Rg1 h1N Ng3 Nf2+ Ke2 Nd1 Rg2 Nb2 Nh1 Bd4 Qc3 Bg1 Qcg7 Ra7 Rc3 Qb8 Rc1+ Nb4 Qd7 c5 Qdd6 Rf7 Qde7 Rg7 e5 Bc7 Rd8 Bb6 Rd7 Bd8 Rd6 Ka4 Rb6 Nc6 Rb4+ Ka5 Rb3+ Bb4 Rbc3 Ba3 Re3+
Q1K4n/q2N1Q2/2bRn2k/qPp1q2n/1bn5/1r2P1B1/NRQ1B3/n2bR1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 Kf7 g4 Kg7 b4 h5 d4 a5 b6 a4 g5 h3 d5 h4 b7 a3 d6 c3 e3 a2 b5 c2 d7 h2 g6 h3 Bg2 Nh6 Na3 Bb4 Qd5 c5 Qb3 Na6 b8Q Nf7 Qd5 Nc7 Qbb7 Kh6 g7 Rg8 Qd3 Ne6 Qf1 Nh8 Qf2 Qa5 Rb1 a1N Bb2 c1Q d8Q Qc3 Nc2 Qe5 Bd4 Bd7 Bf1 Bc6+ Qd5 Ra6 Qf7 Ra7 Ke2 f3+ Kd3 f4 Kc4 Rd7 Qd2 f2 Rb2 f3 Be2 f1N Qd1 f2 Nf3 Ng3 Re1 h1Q Bc3 Qb8 Be5 Nh5 Bg3 f1N Ne5 h2 Q1d2 Rdd8 Nd7 Qe5 Qg2 Bf3 Qc1 Bg4 Qa8 Qb7 Qd2 h1B Qc3 Rgf8 g8R Qba7 Rg7 Rg8 Rg5 Qeb8 Rd5 Qe5 Rd6 Bc6 Qb3 Ba3 Nb4 Nd2+ Kd3 Nc4 Na2 Bb4 Qc2 Qf4 Rd5 Qd6 Ke4 Bf3+ Kf5 Qe7 Bd3 Bd1 Rd6 Rg4 Bf1 Rdg8 Be2 Rd4 Bh4 Rg1 Bg3 Rd3 Qfg8 Nf4 Qf7 Qe8 Kf6 Qeb8 Ke7 Nh5 Rd5 Qe5 Rd6 Rb3 Ke8 Kg5 Ke7 Nc7+ Kd8 Ne6+ Kc8 Kh6 Bh4 Rg6 Bf2 Rg1 Bg3
n1N1R2b/R4K2/b2rB2r/P1Q4r/1BRpk2P/nb2Bb2/2b1N3/nq2Q1q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 b5 h4 g5 a4 d3 c4 d2 f4 b3 a5 b4 c5 e4 c6 g3 c7 g2 Bd3 g4 Qf3 d1B Ba3 b2 Bc2 b3 Ra2 g3 Bd3 e3 Qf1 e2 Rh2 e1N Nh3 g1Q Bc2 g2 Nc3 b1B Qb5 b2 Na4 Rh5 Qb4 Na6 Nc5 Bg7 Na4 Bh8 Nb6 Nh6 Bb3 Nc2 Qe1 Ng4 Bb4 Na1 Ra4 Bf3+ Kd6 Qg8 Be6 Qh7 Bc5 Bcb7 c8R Ne5 Rc7 Ba2 Rc4 b1B Nc8 Bb3 Be3 Bd3 Rh1 Bbe4 Ra7 Nc7 Rh2 Bb7 Rh1 Ba6 Rh2 Bdc2 Rh1 Kg7 Ke7 d5 f6+ Kg6+ f7 d4 Kf8 Rb8 f5+ Kf6 Rh2 Na8 Nf4 Rb6 Ne2 Rd6 Ke8 Rh6 f8B Qb7 Rh3 Rh5 Rg3 Rh6 Rg8 Qb5+ Rc6 Nc4 Be7+ Ke5 f6 Na3 f7 Ke4 f8Q Qd3 Kf7 Qd1 Rc4 Qb1 Bc1 Qf1 Be3 g1R Qc1 Rg5 Qe1 Rc6 Bc5 Qg1 Bb4 Rgh5 Qc5 Rd6 Re8
4rRrq/3B3n/qqnQN1N1/pB3rkP/Q2P1R2/8/KQb3n1/Bn2bn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Ke7 e4 Kf6 h4 c5 b6 a5 d3 g5 Kd2 g3 Kc3 g4 Kb2 c3+ Ka2 f3 b5 f2 b7 c4 b6 g2 h5 c2 Bd2 c1Q Qe1 g3 Bf4 c3 Na3 c2 Bh6 Bf5 Qb4 Nc6 Qd2 Bb4 Nf3 g1Q b8Q g2 Qd1 Be1 Bf8 Qh6 b7 c1N+ Kb2 Na2 Nd4 Nc3 e5+ Kg5 e6 Nb1 e7 Nf6 e8B Nh7 Bd7 Rg8 Ka2 f6 Be2 f1N Rh4 Ne3 Qa4 Qb6 Bf1 Qa6 Qd6 Re8 b8Q Qf2+ Be2 g1R Rf4 Rf1 Nc4 Ng2 Qb2 Qg7 Ne5 Qh8 Bg7 Be4 Qd1 f5 Qa4 Qe3 Ng6 Qg1 Nb3 Qgb6 Nc5 Rf2 Bc3 Rf3 d4 Bc2 Bb5 Rf1 Rf3 f4 Rf2 f3 Ne6+ Kh6 Re2 f2 Re4 Rh1 Rf4 f1N Rf8 Rh3 Rf4 Rf3 Rf8 Na3 Rd1 Nb1 Rd3 Rf5 Rf3 Nh2 Rf4 Nf1 Qc1 Na7 Ba1 Nc6 Nd8 Kg5 Qca3 Qa8 Qb2 Qaa6 Ne6+
4q1Nr/1Kn1n3/r1B1N3/pN2BP1b/kbRPBb2/Qb6/q1Qn4/2Rr1b2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 c5 b4 e5 d4 a5 g4 h5 f4 h3 f5 h4 g5 c3 g6 c4 b6 Kc6 b7 Kb5 g7 h2 Ra2 c2 Be2 h3 Bh5 c3 Bg6 Ra6 Qd2 Qd5 Ba3 c1R Nf3 c2 Ng5 Ka4 b5 Be6 b6 Ne7 g8B Rd1 Ra1 c1B Bd6+ Qa2 Na3 Bd5 Ne6 Bb3 Rg1 h1B Nb5 h2 Be8 Bg2 Bc6 h1B Bf7 Bb2 Rc1 Bf1 Qc2 Bf3 Bh5 B3e2 Bf3 Ba3 Rg8 Bb4 Bh1 Bg7 Rc8 Bh5 Bc7 Bf6 Bg2 Bh4 Bf3 Bg3 Bd6 Nd7 b8N Nf6 b7 Ne8 Nd7 Nc7 b8Q Bh2 Nf6 Bg3 Ng8 Bf4+ Kf2 e3+ Kg1 e2 Kf2 e1N Bfe4 Bg3+ Ke3 Nf3 Be8 Na8 Rc4 Nd2 B8c6 Nc7 Bd3 e4 Be5 Bf2+ Kf4 e3 Bde4 e2 Bf3 e1Q Bg7 Ne8 Nd6+ Ka3 Bcd5 Qe2 Ng5 Be3+ Ke5 Ka4 Ke6 Ng6 Kd7 Nc7 Kc8 Bf4 Bc6+ Ka3 Qb5 Qe8+ Kb7 Bc3 Bfe4 Ne7 Ne6 Ba4 Qbb1 Bb3 Be5 Bb4 Nb5+ Ka4 Qcb2 Bfe2 Q1c2 Bf1 Qa3+
2n1q1b1/1R3Nk1/2B1B2p/1BKb3Q/q1bNrb2/r2RbQPP/2R5/1qn1r3 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Ra1 f3 Bf4 exf4 Kd2 f2 Kd3 d5 c4 f5 b4 Kf7 e4 a5 c5 a4 g3 a3 h3 a2 e5 h6 b6 f3 b7 f4 c6 Ne7 e6+ Kg7 b5 Ra3+ Nc3 Nd7 b8R Ne5+ Kd2 d3 c7 d4 b6 Qe8 Qb3 Bb7 c8B Bd5 Re1 a1B Ba6 Nc8 b7 Bd6 Be2 f1Q e7 f2 Ne4 f3 Rd1 Rf8 Qa2 Rf4 Ng5 Re4 Bc4 Bg8 Rh2 Qe1+ Kc1 f1B Qb3 f2 Nf7 d2+ Kc2 Bg2 Nf3 f1B Be6 Nd3 Qc3 Nc1 Bb5 Bf4 Bc6 Qd8 e8B Bc4 Qa5 Bc3 Qh5 Bb4 Bb5 Bc5 Bec6 d3+ Kb2 Bg1 Nd4 Bge3 Qf3 Qe8 Qh5 Ra5 Kc3 Ra3+ Kb4 Qf1 Kc5 Bf3 Re1 d1R Rc2 d2 Re2 Bh1 Rc3 Re1 Rd3 d1Q Rb2 Na7 Rc8 Bf3 b8Q Qa4 Qa8 Qg1 Rc7 Nc8 Rc2 Qf1 Rdd2 Qd3 Rb7 Qdb3 Rd1 Qb1 Rdd2 Bfe2 Rd3 Bd5 Qa5 Bf1 Qd2 Be2 Qd1 Bf1 Qdf3 Be2 Rd1 Bec4 Rd3
NRq2Q1Q/BR6/2bq1q1p/n1rNb3/3B1P1P/N2q3r/1q1b2Kn/3krB2 b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 c4 Kd7 f4 Ke6 Kf2 Kf5 d4 e5 c5 a5 d5 g5 c6 e3+ Kg3 Ke4 b6 b3 h3 a4 c7 a3 b7 e2 d6 e1B+ Kg2 a2 d7 b2 Ba6 g3 Nf3 g4 Ng1 Bg7 Qd2 Nc6 b8B Nh6 Na3 b1Q Kf1 g2+ Ke2 g3 Nb5 Qd3+ Kd1 Qf6 d8Q Bb7 c8N Ng4 Qf8 Nh2 Ba3 Na5 Nd4 Bc6 Rc1 a1Q Bb4 Qb2 Nge2 g1Q Nb6 g2 Ba7 Rc8 Nc2 Kf3 Na3 e4 Rb1 Qgd4 Bc5 g1Q Nc3 e3 Ncd5 Qg4 Na8 Rc7 Bc4 Qc8 Bb5 Qdb4 Bd4 Qbd6 Bc4 h6 h4 Rg8 Ba6 Bh8 Rg1 Rg3 Bc4 Rh3 Rg7 Qdf5 Qc3 Bd2 Bf1 Qd3 Rg6 Qg5 Rg8 Be5 Rg7 Qgf6 Re7 Be8 Rd7 Rc5 Rb7 Bc6 Rb8 Bc1+ Ke1 e2 Qc2 Ke4 Kf2 e1R Kg1 Kf3 Qc3 Bd2 Kh1 Qc2 R1b6 Qb2 R6b7 Re4 Bg2+ Ke2 Bf1+ Kd1 Kg2 Re1 Qb4 Qdf5 Qb6 Qd3 Qbd8 Rf3 Qh8 Rh3 Qdf8
q2nk3/Qbb4K/1R4Bp/1bnN1R1P/b1Nr4/Br2q3/r1PRq3/1bQ1Q3 b - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Kf2 e5 h4 a5 d4 f5 g4 b3 b6 b2 b7 e3+ Kf3 e2 g5 e1Q d5 a4 g6 a3 d6 a2 g7 e4+ Kg2 f3+ Kh3 f4+ Kh2 e3 Ne2 f2 Ng3 f3 Ne4 e2 Kg3 Na6 Kf4 Nh6 g8Q Nf7 b8Q Bb7 Kf5 Nc5 Qg1 Ra3 Qa7 Qa8 Nbd2 Bh6 Nc3 Bf4 Bg2 f1B Rb1 f2 Be4 a1R Rh2 Bg2 Nc4 R1a2 Qh1 Rg8 h5 h6 Rh4 Bg3 Rf4 Rg4 Qf1 Rh4 Kg6 Bh2 Bd3 Bgc6 Kh7 Ba4 Bg6 Qd2 Rf6 e1Q Qg1 Qe6 Qge1 Qee3 Rf4 Qde2 d7+ Ke7 Rf3 Bc7 d8R Rg4 Rd4 Nd8 Rd2 Rd4 Rf7+ Ke8 Nd5 Rad3 Ra1 Raa3 Ra2 b1B Rb2 Ra2 Rb6 Rb3 Ba3 f1B Qc1 Q2f3 Na5 Bfb5 Nc4 Qfe2 Rf5+
b2Q1R2/1Bn2Nn1/2bPN2K/kr4Q1/rBnpqPq1/2RQb3/5n1R/2q4n b - - 0 1 illegal: No proof kernel
rNNbK1nB/b2n2r1/2PknQ2/2Nq1r1B/q1p1Qb2/4R2Q/1b2bR1P/8 b - - 0 1 illegal: No proof kernel
Bbn1Q2K/qq2R3/N1P1R1bN/qP4pn/1Qk2n2/q2r2Q1/1B3R2/3rb2q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd3 a5 h4 g5 b4 f5 c4 a4 e4 a3 h5 a2 b6 f3 c5 f4 b5 g3 c6 g2 b7 f2 h6 f3 h7 Na6 b8R Nc7 e5 Ra3+ Nc3 Ne7 Nh3 g1Q Bg2 f1N Nf2 Ng3 Rb7 Nh5 Rb1 a1B Ne4 f2 Qe2 f1Q Rh2 Qf7 Bb2 Bd7 Nd6 Nc8 Qf3 Be8 Nf5 Bb4 Qe3 Qg7 Qe1 Bg6 Qg3 Qd6 Re1 Rd8 h8Q Rd7 Ke2 d3+ Kf3 d2 Kg4 d4 Na2 d3 Qf8 Nd5 Nh6 Qa7 Bh3 Ndf4 Rf2 Kd5 e6 Kc4 e7 d1Q+ Ree2 d2 e8Q Rd8 Re7 Qh1 R2e6 Ba5 Nb4 Rd3 Na6 d1Q+ Rf3 Qd2 Rf2 Bf7 Kf5 Qa3 Bg4 Qb7 Bh3 Qd4 Bg4 Qda7 Ke5 Bg6 Bf5 Ng7 Kf6 Bc7 Bh3 Qda5 Bf5 Bb8 Bg4 Be4 Kf7 Rd1 Kg8 Ngh5 Kh8 Bg6 Bh3 R8d3 Bg4 Nh3 Qff4+ Kd5 Qb4 N3f4 Bf6 Bae5 Bf5 Bec7 Bb2 Bb6 Bg4 Be3 Bh3 Bd2 Rg2 Qbc7 Rf2 Nd6 Re3 Be1 Bc8 Qd7 Bb7 Nc8 Ba8 Qdb7 Qd2 Kc4 R3e6 Re3 Qd6 Red3 Qb4+
2b5/qB1bKR2/1pbr1r2/2bNn3/bB5Q/3kqPnP/BNn4q/2Q2R1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 g5 a4 e5+ Kb5 d5 a5 b3 a6 g3 h3 b6 c5 g2 c6 b2 c7 g4 f6 g3 a7 d3 f7 d2 Ne2 g1Q f3+ Kd3 Ra6 g2 Na3 b1B Qa4 d1B Qa5 e4 Qe1 d4 Qh4 e3 Rh2 Qe7 Qh6 Nd7 Kc6 Ne5+ Kd5 Ba4 Nc3+ e2 Rh1 Qh2 Qh4 g1Q Bd2 Qe3 Nc4 Bad7 Ra4 Rb8 a8Q Nh6 Ra7 Nf5 Qc6 Rh6 Nb2+ Kc2 Qg6 e1N Qg2 Rf6 Bc4 d3 Rf1 Ng3 Ba2 Qa3 Rb7 Bc5 f8Q Qa7 Qh1 Ra8 Qfh6 Rb8 Bc1 d2 Q6g5 d1B Bd2 Be2 Qgh6 Beb5 Q6f4 Ba4 Qfg5 Bf5 Qgh6 Bcd7 c8B Ra8 Rc7 Bg4 Bb7 Rd8 Ncd1 Bgf5 Bb4 Bg4 Nc3 Kd2 Qf8 Nc2 Qd6 Bc8 Rf7 Bgd7 Qe6 Bd4 Kd6 Bc5+ Kc7 Bdc6 Qec4 Rdd6 Qcf4 B8d7 Kd8 Bc8+ Ke7 B6d7 Be6 Ba2 Qfg5 Bd5 Qgh6 Be4 Ba2 Bec6 Nd5+ Ke2 Nc4 Kd3 Q6g5 Qe1 Qc1 Qe3 Nb2+
5rR1/1qnb2n1/P1pbqr2/rk2b3/3N3K/1bP2q2/BQR1B1QN/b5RN b - - 0 1 illegal: No possible last move
r4n2/Qb1bR2n/p2P1q2/3N2bN/1n1P2BN/R1r1q1Q1/1r2k1Q1/b4bBK b - - 0 1 illegal: No possible last move
n1Rq1n1q/1n4PQ/2b4n/3B2r1/N1n4b/1N2bpQr/3R1R1P/QK1kB2q b - - 0 1 illegal: No proof kernel
bK6/1nn2P1n/3B2k1/2nPQ1BB/3N2Qn/p1b2q1b/1rq3RR/Q3Nr1q b - - 0 1 illegal: No possible last move
q2r1nnN/1Q1rnPR1/nNPBq1b1/1q1kp3/5B1n/1Bbb2Q1/7R/2Q4K b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Ke6 f4 a5 Kf2 d5 Kg2 h5 c4 a4 g5 e3 b6 e2 g6 e1Q b7 d3 b5 d2 b6 d4 c5 h3+ Kh2 h4 g7 a3 f5+ Kd5 c6 d3 f6 a2 f7 Qe6 Ba3 Ra7 Bb4 Nd7 b8Q Ba6 Qb7 Qa8 Qa4 d1B Be2 d2 Bc3 Bc2 Qb8 d1Q b7 Bad3 Qa3 Qf1 Qd8 Bg6 b8B Bcd3 Nd2 Rb7 Rd1 a1N Ngf3 Nc2 Qc7 Nb4 Qa1 Na6 Ne5 Qff5 Kg1 h2+ Kg2 Ra7 Rhg1 h1N Qc1 Ng3 Qb7 h3+ Kh2 Qg5 Bb4 Nf5 Kh1 h2 Ndc4 Nh4 Rd2 Qh5 Bd1 Qe2 Ra2 Qb2 Be1 Qb5 Bd6 Bh7 Qf4 Qh3 Bg3 Ngf6 g8Q Bg7 Qb6 e6 Bb3 Qg4 Qc8 Rd8 Qbf2 Nf8 Qc1 Rad7 Bf4 Ng8 Ng6 Bc3 Qb7 e5 Nh8 Qe6 Rg7 Bhg6 Qfg1 Nf5 Qg4 Nfe7 Kg2 h1N Kg1 Ng3 Rh2 Ngf5 Kh1 Nh4 Qgg1 Bb4 Qg3 Bc3 Nb6+
1R1qn3/3bP1qb/1N2P1kN/1r2Q1B1/4p2r/bq1rn1b1/4bB2/K1QR1B1Q b - - 0 1 illegal: No proof kernel
2Bq3k/N3PK1n/pBbr3b/2b2b2/3r3r/1NNbQPqq/1n1R2Q1/1R5R b - - 0 1 illegal: No proof kernel
3b1Q1q/3PNBn1/Q1Nr2b1/n1B2b2/2nQn3/4pBk1/KR2rnP1/1R2q1q1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kd7 a4 Kd6 d4 b5 Kd2 e5 Kc2 h5 Kb2 c5 a5 c4 f5 e3 f6 b3 a6 h3 f7 h2 a7 e2 Ra4 e1Q Ra5 e4 Ka1 c3 Qf3 b2+ Ka2 c2 Bd3 h4 Ra3 b4 Nc3 b1N Bg5 c1Q Kb3 h3 Qf2 e3 Nd1 Bf5 Bc2 Nf6 Bh4 Nh5 Ra6+ Nc6 Rb6 Be7 f8Q Na3 Qf1 Rh6 Ka2 Ng7 Qa6 Nc4 Ne2 Rb8 Rf1 h1N a8B h2 Ndc3 Nf2 Bb3 h1N Bb7 Ng3 Rh1 Kd7 d6 Ke6 d5+ Ke5 d7 Nge4 d6 N6a5 Nd4 Kf4 Nc6 Qc8 Rg1 Bd8 Be7 Kg3 Rh1 Qg1 Nd5 Qce1 Rb5 Bb6 d8Q Re6 d7 Rd6 Qf6 Bc7 Qdf8 Bd8 Qd4 Bg6 Bd1 Bf5 Bh5 Ra8 Bf7 Ra7 Qd1 b3+ Kb1 b2 Ka2 Ra8 Qd4 b1B+ Ka1 Ned2 Rh5 Bg6 Rb6 Rb8 Qg8 Bc7 Na7 Bbc2+ Rb1 Rc6 Ka2 Qf8 Bb4 Bd8 Ne7 Rd6 Rb5 Bcf5 Bf3 Nde4 Bc5 Qe8 Qh8 Qg8 R5b4 Qh7 Qf8 Qh8 Nac6 Rb6 Ra4 Rb3 Rb4 Rb2+ Ka1 Rd2 Rb2 Re2 Ka2
1q4B1/3P1R2/2q1r2Q/1rrrn1R1/2bq3N/N1N1pQPb/1kB2B1K/2b1r2n b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 a4 Kf7 f4 Kf6 Kf2 b5 d4 h5 d6 e5 d7 c5 f5 c4 a5 c3 d5 c2 g3 b3 Kg2 e3 d6 e2 a6 e1R a7 h3+ Kh2 e4 Qe2 Ke5 f6 Kd4 f7 h4 Ra5 b2 Qf3 e3 Ra1 b4 Na3 Kc3 Qd1 b1Q Be2 b3 Ba6 b2 Qg4 Rh5 Nf3 Nc6 Nc4 Ne5 Qf4 Nh6 Rf1 Nhg4+ Kh1 h2 Na3 Nf2+ Kg2 h1R Qh6 Rb8 a8B Rb5 Be4 Kb3 Bd2 c1R Ng1 Rcc5 Ne2 Rh3 Bab7 Nh1 Nc3 Rh2+ Kg1 h3 Bd3 Qh4 d8Q Qd4 Qdf6 Qc1 Bbe4 b1Q Bd5+ Kb2 Bc2 Be6 Ba2 Bc4 d7 Rf2 Qc6 Rf6 Qf3 Re6 Kh2 Be7 f8N Rd5 Kg1 h2+ Kg2 Bd6 Ng6 Bb4 Nh4 Rbc5 Bg6 Qcc2 Rf2 Qa4 Bc2 Qc6 Bab3 Ba5 Nab5 Bb4 Ra5 Ba3 Rf1 Ka1 Ba2 Bc1 Na3 Qb8 Kh3 Kb2 Bab3 Re2 Be1 Rb5 Bf2 Re1 Bg1 Nf2+ Kg2 h1B+ Kh2 Bg2 Ba2 Nh1 Bf2 Qg8 Ra8 Qh8 Rg8 Bh3 Rg5 Qb8 Bh7 Qd2 Bg8 Qd4 Bb1 Rdc5 Bc2 Ng6 Rg4 Rhd5 Rg5 Ne5 Qd1 Bd3 Bg1 Qcb7 Rf7 Bc4 Qf3 Qc6 Bf2
2NQK3/nB1p4/RQ1BNbRn/P1Qb3r/B1q1r3/1P1qb1q1/2b4r/1k3b2 b - - 0 1 illegal: No proof kernel
1r1q4/2Pb1Q2/nrB1p2b/1Pq5/NnBQrQ2/1b2B3/NK1nrR2/3R1rk1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 f5 a5 g5 a4 c3 a3 Kc2 h3 b6 e3 g6 Ke4 c4 d5 g7 d3+ Kc3 e6 b7 h2 b5 h4 c5 a2 f6 d4+ Kb3 h3 c6 d2 f7 d3 c7 e2 Na3 Ke3 Bg2 Kf2 Bf3 e1R Rb1 a1N+ Ka2 Bd7 Rb2 Na6 b8Q Re2 Rc2 Nb3 Bc6 Ne7 g8B Nd5 Qb7 Rh4 Nb1 Ndb4+ Kb2 Rb8 Qc8 Bh6 Nc3 Rhe4 f8Q+ Kg2 Na2 Rb6 Qe1 d1B Qc3 d2 Qf7 Qf8 Bh7 Qc5 Bf5 Kf1 Qd4 Kg2 Rc4 Bc2 Qcf8 d1Q Rc3 Nd2 Rf3 Bb3 Bh7 Qe1 Qfd6 Qh4 Q6e5 Qd8 Qef4 Re1 Ne2 Rf1 Qd3 Rf2 Nec3 Rfe2 Rd1 h1R Bf5 h2 Qd4 Rf1 Rf2+ Kg1 Na4 h1R Bg4 Rh2 Bf3 Rg2 Bd5 Rg8 Bc4 Qh4 Bh1 Rgb8 Bg2 Qd8 Bf3 R4e3 Bc6 Re4 Ka3 Nf3 Be3 Nd2 Kb2
5B2/BP1K1nN1/1RN4n/P1QB3p/1q3bkb/2bbrbn1/Q2Q3r/3R2qr b - - 0 1 illegal: No proof kernel
1b1KnNbr/P2R3k/b4r1B/N1B2q2/1Q1Q1n2/pPq2R2/4BQn1/bb2q3 b - - 0 1 illegal: No possible last move, all moves rejected
4r1r1/Pn2r2q/1R2QN2/RKb2Q2/2Nk1p1Q/q2q1b1P/N1q1q3/2nBBb2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kd3 b5 e4 c5 a4 f5 a5 g5 a6 g3 h3 g4 a7 c4+ Ke2 c3 Kd3 f3 Qb3 f4 Ra6+ Nc6 Ba3 c2 Nc3 c1Q Nd1 g2 Qc4 g3 Rh2 f2 Nb2 Ne7 Ne2 g1Q Qb3 g2 Qc2 Bg4 Qa4 Rg8 Qc2 Ng6 Nc3 Bf3 Be2 f1B Rb6 Qf2 Na2 g1R Rg2 Qc7 Rg5 Qh7 Re5 Re8 Nc4+ Kd7 d6 b3 d5 b2 Qb1 Nd8 Bb4 Nb7 Be1 b4 Rg5 b3 e5 Qh2 Qc2 b1Q e6+ Kd8 d7 Ke7 d6+ Kf6 e7 b2 d8Q Ne5+ Kc3 Nd3 Ra5 R1g7 Bd1 Qe2 Qd7 Qce3 Qb3 Nc1+ Kb4 Qbd3 Kb5 b1Q Qg4 Qbc2 d7+ Qe6 d8Q Qed6 Qh4+ Kf5 Qa8 Ke4 Qc8 Kd4 Qcg4 Qa3 Qf5 Rb8 e8N Bc5 Nf6 Rbe8 Qb4 Rge7 Qd2 Qe3 Qe2 Qed2 Qee6 Qf2 Qg6 Qfe2 Qgf5
n4bq1/P4q2/bBR1Q3/3RK2P/5r1n/2r1pBqb/Q1b1RkN1/b1Bn2N1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Ke3 Kf5 Kd4 Kf4 h4 c5+ Kc4 b5+ Kb3 e5 a4 e3 d4 g3 h5 g4 d6 c4+ Kc2 g2 d5 e4 a5 c3 d7 g3 f3 Na6 d6 Nc7 a6 Nf6 a7 Qe8 d8R Bh3 d7 Rc8 Bc4 Qf7 Bd5 Ng4 Bc6 Nf2 Ra4 Na8 Qd5 Nd1 Kb3 c2 Bd2 c1B Nc3 Bb2 Ra5 Ba1 Kc2 b3+ Kb1 b4 Bc1 b2 Kc2 b1B+ Kb3 Rc7 Kc4 b3 Kd4 b2 Qa2 Bc2 Rd5 b1B Rc8 Rh6 d8Q Rf6 Qe8 Bd3 Qe7 Bbc2 Qe6 Ba6 Bb7 Rc5 Rc6 Rf5 Bb2 e2 Ba3 e3 Bc1 Nb6 Ba8 e1Q Bb7 Kg5 f4+ Kh4 Ba8 Rf6 f5 Qf2 Bb7 Na8 Ke5 Kg4 Qe8 Qg8 Qe6 Rf7 f6+ Kh4 Ne2 g1Q Nf4 Qgf1 Rg1 g2 Rh1 Qc4 Re1 g1N Ng2+ Kg3 Bb2 Qh4 Ne2+ Kf3 Bd4 Rc3 Bb6 Rg7 f7 Rg4 Qc8 Rf4 Qe6 Be7 f8B Qhg3 Bg7 Bf8 Bf6 Qf1 Be7 Kf2 Ba3 Bhf5 Bc1 Nf3+ Kf6 Nh4 Ng1 Bh3+ Ke5 Qb5 Qg4 Qb3 Qe6 Bd3 Ba6 Bf1 Be2 Qf7 Bg4 Ba6 Bf3 Qfg8 Bd8 Qb7 Bb6 Qbf7 Re2+
1Kn1b3/r2r4/1bN3bk/1B1nBPP1/1Q3n2/bb1q1R1R/B3Q1p1/1RN1b2b b - - 0 1 illegal: No possible last move, all moves rejected
R1rQN3/b2r2n1/5p2/QN4kP/2r3nq/nK1b2P1/rB2r1Rr/Nr4RB b - - 0 1 illegal: No proof kernel
6NK/3rBp2/kr1PnN2/b3rn2/r1B1Q3/QR1rq1rB/4bbRP/4N1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 a5 e4 c5 b4 Kc7 e5 Kb7 b6 g5 e6 g3+ Kf3 g2 Kg4 f3 Kf5 g4 b5 f2 d5 g3 Be3 a4 Bd4 c3 Ke5 c4 e7 c2 e8B c1B Bc3 a3 Nh3 g1R Bd4 g2 Nd2 c3 Qe2 c2 Nf4 a2 Qe1 Na6 Nh5 Nc7 Nf3 Ra5 Bc5 Be3 Bd7 c1R Be7 Rh6 Rb1 a1R Bc4 f1R Nf6 R1a4 Bh3 Bf2 Rb3 Rc3 Qe4 Ne6 Ne1 Rd3 Kf5 Rg6 Ke5 Nh6 Ng8 Rgg3 Kf6 Nf5 Qh4 Ra7 d6 Bh6 Qd4 Qe8 Qe4+ Kb8 b7 Bd2 Nf3 Rb1 Ne1 Rf1 Rg1 Ba5 Rh1 Ra8 Rg1 Ka7 b8N Ba6 Nd7 Rd8 Bf8 Rc8 Be7 Rc6 b6+ Kb7 Qe2 Rc7 Qb2 Bb5 Qa3 Ka6 b7 Rb2 b8Q Re2 Rb1 Re5 Qa8+ Ra7 Qe4 Rc7 Rh1 g1R Rb3 Rb7 Ng2 Rb1 Ne1 Rf1 Rg1 Rb6 Rg2 Rg1 Nf8 Ra1 Nh7 Rc1 Bd5 Rc7 Bc4 Rd7 Qe3 Qf8 Bd5 Rd2 Qe4 Be2 Bc4+ Rbb5 Qf4 Rdd3 Qg4 Qh6+ Qg6 Qe3 Qg4 Ng5 Qe4 Nd4 Kg7 Nf5+ Kh8 Ne6 Bd5 Rbb4 Nhf6 Rb6 Bc4+
q1BKn3/2PPQb2/1Bk1N3/3b1b2/rQ2Q3/1b2rpbb/2N4R/2r1RbnN b - - 0 1 illegal: No proof kernel
3NK3/k1q2rqn/n3B3/b2RQ2b/1Q1rRQP1/p1P1nr2/Nn4q1/b3B2N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 b4 d5 f4 Kd7 b6 Kc6 b7 Kb6 g3 e5 b5 h5 f5 a4 f6 h3 f7 e3+ Kd3 h2 Qf3 a3 Qf2 e2 Qe1 h4 Nh3 e4+ Kd2 d3 Ke3 d4+ Kf4 e3 Ke5 d2 Nf4 d1N Ng2 d3 Qb4 e1N Nc3 e2 Bf4 h3 Rb1 d2 Nh4 Ng2 Nf5 e1B Bc4 Nb2 Rd1 Ra7 Be6 Ne3 Na2 Na6 b8N Nf6 Nc6 Bg7 f8Q Rf7 g4 Bd7 Kd6 Nh7 Qe7 Rhf8 Ng3 Bf6 Rg1 h1Q Be5 h2 Bc3 Qe4 Nh1 Qg6 Qe8 Kb7 b6 Qg7 Rg2 Bd4 Re2 Rf3 Qf7 Qc7+ Ke7 Ka8 Nd8 Be8+ Bd7 Kb8 b7 Ka7 Qa4 Nf1 Re4 Ne3 Qb4 Be5 Ke6 Bd4 Qf4 Bf7+ Ke7 Be5 Ra1 d1R Rc1 Rd4 Rd1 Rc4 Rd5 Rd4 Ng3 h1Q Bd2 Qb6 Be6 Qg2 Nh1 Bh5+ Bf7 Qgg6 Be6 Rf7+ Ke8 Qg7 Bc3 Bc7 Bd2 Qd6 Qe5 Ba5 Bc3 Bd2 Qf4 Bc1 Be1 Qc7 c3 Na4 Qf5 Bb2 Qe5 Ba1 Qf4 Nb2 Qe5 Nc5 b8Q+ Ka6 Q8b5+ Ka7 Qf1 Na6 Qf2 Rc4 Qfg3 Rd4 Qgf4
r1n2Q2/1Q1n2rb/B2q4/2b2q2/q2PrB2/2QN1kb1/PRN1p3/1nb1R1RK b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 g4 Kf7 d4 Kf6 f4 b5 Kf2 h5 Kg2 e5 f5 c5 d6 h3+ Kh2 c4 d7 b3 Bg2 b2 Bd2 b4 Bh6 h4 Qe2 b3 Na3 b1N Nc2 e3 Na3 e4 Bf3 c3 Qd1 c2 Bg7+ Kg5 f6 Kf4 f7 c1B g5 b2 g6 e2 Qb3 e1B Bg2 e3 Qc3 e2 Qb3 Rh7 Qa4 Ne7 Nf3 Bg3+ Kg1 Qe8 d8R Bf5 Qa6 Qa4 Ne1 Nc8 Bb7 Bc5 f8Q Nd7 Nac2 h2+ Kg2 Kg4 Bh6 Rg7 Rg1 h1R Nd3 Rh3 Re1 Rh2+ Kg1 h3 Bf4 Rf2 Qa7 h2+ Kh1 Rg2 Ba6 Kf3 Qb8 Re7 g7 Re4 g8Q Bh7 Qf5 Bh4 Qb4 Rg7 Qgc4 Bg3 Qfd5 Na3 Qf5 b1Q Qb7 Qb6 Qb3 Nb1 Qc3 Qd6 Qf8 Kg4 Qbb3 Na7 Rf1 Be3 Bh6 Nd2 Rb8 Nc8 Rae1 Nb1 Kg2 Bc1 Qd5 Bgf4 Rb2 h1Q+ Kf2 Qh5 Kg1 Qh3 Qb7 Bg3 Bf4 Qh5 Kg2 Qg5 Rg1 Qf5 Kh1 Kf3 Qh8 Qff8 Qg8 Qf5 Qf8
brB4q/q2Q1nRB/2Q1bN2/4q2P/1Br4k/nNnpP3/1b3R1n/1rR1K3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 h4 Ke7 c4 Kf6 b4 d5 h5 Kg5 b6 a5 b5 f5 b7 a4 c5 a3 b6 d3 c6 d4 c7 d2+ Kf2 f3 Ra2 f4 Rh2 d3 Qe1 Na6 b8Q Be6 c8B Nc7 b7 Nh6 Nh3+ Kh4 Rc2 d1N+ Kg1+ f2+ Kg2 g5 Qb4 f3+ Kh1 a2 Qc4 a1Q Rc3 Nf7 Na3 Ra4 Bd7 Bg7 Bc8 Nb5 Bg2 f1B Bd2 f2 Nc2 Na3 Be4 g3 Qc6 g4 Bh7 Rc4 Qbc7 Qd6 b8R Qe5 Nd4 Rd8 Rc2 Nc3 Nf4+ Bh3+ Rb1 f1N Kg1 g2 Kf2 g1R Rd1 g3+ Ke1 g2 Q7d7 Rh1 Nb3 g1Q Ra2 Qa7 Rf2 Bg2 e3 Be4 Rg2 Nh2+ Rg1 Bg2 Nd5 Rh8 Nf6 Bf3 Qb6 Ba8 Qbc6 Re8 Rc1 Rf8 Ba6 Rb8 Bc8 Bh8 Kf2 Qb2 Rg7 Re1 Rc2 Rb1 Rc1 Ne2 Ba5 Qbd4 Ke1 Nc3 Qdc7 Qd8 Rf2 Qf8 Bb4 Qe8 Rg1 Bg7 Q7d6 Qh8 Qdd7 Nd1 Rg3 Qec5 Ne8 Bb2 Rg7 Nc3 Nf6 Qd4 Rgg2 Qe5 Rg7
3B4/2Q5/1nn1B1nk/1q1PR3/N1b1RQp1/Q2r1q2/PNqbr1BK/3nr2b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 b5 Kg2 f5 e4 Kf7 d4 Kg6 h4 c5 h5+ Kh6 e5 g5 e6 f3+ Kg3 b3 e7 c4 e8B c3 d6 b2 d7 b4 Bc4 f4+ Kh2 b3 Bd3 g3+ Kh3 f2 Ne2 f1N Qe1 g4+ Kg2 c2 Kg1 g2 Be4 Ra3 B4g6 Bb4 Bgf7 Nd2 Qf2 f3 Qh4 f2+ Kh2 f1B Qf2 g1R Qg3 Ne7 Be6 Bb7 Nbc3 b1N Na4 b2 Nec3 Ng6 Nd1 Qf6 d8Q Qf3 Qdc7 Bc4 Bc6 Nc3 Qge5 b1Q Ndb2 Rd1 Re1 Re8 Re4 Re1 Qf6 Re7 Bcd5 Nc6 Qff4+ Kh7 h6 Nd1 Re5 Rd3 Re4 Bb5 Re5 Nc4 Bd2 c1Q Re4 Ba3 Ba5 Nb6 Re5 Bc4 Re4 Kh8 h7 Kg7 Re5 Bb4 Re4 Nh4 h8Q+ Kg6 Qhc8 Bd2 Qcf8 Qcc2 Re5 Re8 Qa3 Re7 Re4 Kh7 Re5 Ng6 Be4 Qb3 B4d5 Q1c2 Rb1 Qb5 Rc1 Qe3 Bg2 Qf3 Re4 Qb1 Rc3 Qc2 Rb3 Ba8 Rb4 Bb7 Re5 Qf2 Bd7 Bd5 Re3 Nc8 Qcd6 N6a7 Bd8 Nb6 Qc7 Qf1 Rc4 Qe2 Rc5 Bc4 Bc8 Qf1 Bh3 Bh1 Bg2 Nc6 Bd7 Re4 Re5 Qf3 d5 Kg7 Rg5 Kh6 Be6 Rdd4 Rd3 R4e2 Re3 Rd3 Re4 Bc1 Qfe5 Be3 Qf4 Bd2 Rge5+
Q2n4/K2B1r1q/2q1nNq1/3p1r2/3RPP1r/bb5Q/1k1NrBRn/B2R2b1 b - - 0 1 illegal: No possible last move
4kNK1/nr1Br1B1/5P1R/1n2BR2/p1n1b3/b4QqQ/2P2r1q/qNQb2r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 g4 h5 f4 e5 b4 a5 b6 a4 f5 h3 g5 d3 Kc3 h2 b5 d2 g6 e3 f6 e4 Kd4 e2 Ke5 e1Q g7 h4 b7 e3 b6 e2 Bb2 d4 Na3 d3 Qc1 d1B Rb1 d2 Nf3 h3 Ra1 Qd3 Rg1 h1Q Rg6 h2 Ng5 Nh6 g8Q Ra7 Nb1 Bf5 Qh7 Ba3 Ne6 Be4 Nf8 Qdg3+ Ke6 Ng4 Bh3 Ne5 Rh6 Nc4 Be5 Nc6 b8B Rb7 Bbd6 Na7 Qf5 Qhg2 Qf3 h1R Bf5 Rg1 Bg4 Rb8 b7 Q2h2 Be7 Rh7 Bc5 Rd8 b8Q Rb7 Qd6 Qf1 Qdd3 e1R Bf5 Re3 Bg4 Qfe1 Qdf1 Re2 Qh3 Rdd7 Be3 Rf2 B3f4 Be7 Ra3 Rdc7 Rd3 Bc5 Rd5 Ba3 Rh8 Qgg2 Bb2 Nd6 Bh6 Nc4 Bg7 Qgg3 Nc3 Be2 Rh6 d1N Qg5 Qd2 Qgf4 Qd4 Qc1 Rf7 Nb1 Nc3 Rg5 Bd1 Re5 Ncb5 Rg5 Qd8 Be5 Qd4 Bf5 Rfd7 Bg4 Kd8 Rgh5 Qa1 Rg5 Be7 Kf7 Ba3+ Kg8 Re7 Bc8 Ke8 Rf5 Rff1 Be6 Rf2 Bd7+
1N1rrn2/2n1b1b1/2rP3n/2BNpR2/5R2/1q1N2qB/B1Q2P1q/b1K2bQk b - - 0 1 illegal: No possible last move
RQ1R4/B3Q2r/Pb3b2/1nN2n1q/b1K2NrP/2nBBbr1/3k1p2/Rq2q3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 e4 Kd6 Ke2 Kc5 Kd3 f5 h4 g5 a5 b5 e5 g3 d6 g4 a6 g2 d7 f3 e6 g3 e7 f4 e8Q b3 Ra3 Kb4 Qde2 c5 Qd1 b2 Rc3 f2 Ne2 g1B Qe5 c4+ Kd4 g2 d3 f3 Nf4 Qe8 d8B Be7 Qe6 Rh7 Ng6 Nc6+ Kd5 Bf6 d4 Na7 Rh2 Nh6 Rh3 Bd7 Bc7 Nf5 Na3 b1N Bd3 f1B Bh6 Be2 Nf4 Qh5 Rh1 Rg8 Bb8 Rg4 Bg7 Be3 Qe8 g1R Qe1 f2 Qd8 R1g3 Nc2+ Ka4 Qb6 b4 Na1 Nb5 Ba7 b3 Qb8 b2 Nb3 Kb4 Nc5 Bd1 Rc1+ c3 Qe2 c2 Rg1 Na3 Ra1 Kc3 Rg2 b1Q Qe1+ Bd2 Qe7 c1Q Rg1 Be3 Bh8 Kd2 Bg7 Nc2 Kc4 Bc6 d5 Bf3 d6 Qe1 d7 Ncd4 d8R Nc3 Rg2 Ba4 Bh8 Bg5 Bf6 Ndb5 Bd4 Bf6 Rg1 Rh3 Rg3 Rg8 Rg7 Rg3 Rf7 R8g6 Rff8 R6g4 Rde8 Qbc1 Qc8 Rg1 Be5 Qb2 Ne6 Bb6 Nc5 Qg5 Bd4 Qh5 Qcc7 Rg5 Ra8 R5g4 Qb8 Qbb1 Rd8 R1g3 Be3+
q2k3Q/1b1r1P2/n3KpP1/R2rnNQ1/Q3R3/4qr1B/1bRb2nB/2qN3b b - - 0 1 illegal: No proof kernel
5r2/2Q2p1b/3qbRrP/1bNQRnnB/4Bn1k/3n1Pq1/5r1N/2BqN2K b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 e3 d5 Qf3 e6 Nh3 d3 Qd1 d4 Ng1 Be7 Bh3 d2+ Kf1 d3 Kg2 Qd6 Ne2 Bf6 Ng1 Bd4 exd4 Qc6+ Kg3 Qa6 Bf1 Qd6+ Kg2 Qd8 c4 Ke7 h4 Kf6 a4 g5 f3 b5 h5 e5 h6 b3 d5 b4 c5 b2 a5 e4 c6 e3 c7 e2 d6 e1Q a6 g3 a7 b3 d7 g4 Ra6+ Kg5 Ra1 Ne7 Ra4 Rg8 Rd4 Na6 Rc4 Nf5 Ra4 Nc5 Rb4 Rg6 Na3 b1R Nb5 b2 Nh3+ Kh4 Qc2 d1B Qb3 d2 Nd4 Be2 Qd5 d1Q Rb6 Bb5 Rf6 Nd3 Nc2 Qe5 Kg1 g2 Ne1 Qg3 Be2 Qf8 d8N Qfd6 Nb7 Be6 Nc5 Rf8 c8Q Ra1 a8B b1B Qc7 Ra2 Bf1 Rb2 Qd4 Rf2 Be4 Qgf4 Qe5 Qg5 Kh2 g1N+ Bg2 Ne2 Rf1 g3+ Kh1 Bba2 Qd5 Bb1 Rg1 Nef4 Bf1 Rd2 Nf2 Rc2 Ng4 Rf2 Bh3 g2+ Kh2 Bc2 Rf1 g1N+ Kh1 Bb1 Nh2 Qg3 Bg4 Ngh3 Bh5 Ng5 Rg1 Rd2 Rg2 Ra2 Re2 Rc2 Re3 Rf2 Re2 Rgg8 Ba3 Ne3 Bc1 Nb4 Bh7 Be4 Qa8 Nbd3 Qd5 Rg7 Bf5 Rgg8 Bh3 Bh7 B3g4 Rg6 Bf5 Nf1 Re5 Ne3 Be4 Nf5 Qcc6 Qe7 Qb6 Qd6 Qc7
2q2Q1K/b3P2n/1n3PN1/3b1bBQ/1pN1k3/3rN3/2RR1rB1/Bqnr1q1q b - - 0 1 illegal: No proof kernel
1Q1n1N2/1QbPQ1p1/b2R4/2r3bK/8/qBrq2RP/1q1nr1qB/kN2R2n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 d4 Kd6 b4 Kd5 b6 a5 e3 f5 b7 c5 b5 c3 h3 g3+ Kf3 c4 b6 c2 Bb2 c1Q Qd3 c3 Ra4 g2 Ra2 a4 Qd1 c2 Qd3 a3 Qd2 Be7 Bc3 Ra5 Bb4 Nh6 Qf2 Ng4 Nd2 Nc6 b8Q Ba6 b7 Re8 Be2 Bg5 Bb5 Qb2 Qe1 c1R Nb1 Nf2 Ne2 g1B Bd6 Bh2 Ba4 Kc4 d5 Rc5 Nd4 Rc3 Rg1 Nh1 Bb3+ Kb4 Ra1 a2 Ne6 Qd7 Nf8 Nd8 Rg3 Re4 Nd2 Ka3 Rd1 a1Q Be5 Qb5 d6 Qd3 d7 Qaa2 Qc7 Qaa1 b8Q Qac1 Ba4 Ka2 Qcb7 Ka1 Nb1 Qa3 Bb3 Qcb2 Bc7 Re7 Qe2 Re6 Kg2 Re7 e4 Re6 e5 f3+ Kf1 f2 Kg2 Re7 e6 f1N Rd2 Re8 e7 f4 Rd1 Nd2 Qe3 Nf1+ Kf3 Nd2+ Kg4 f3 Kh5 f2 Re1 f1Q Qe6 Rc2 Qf7 Qg1 Re6 Qg2 Rd6 Nc6 Qe6 Rc8 e8R Nd8 Qf6 R2c3 Ree6 Re5 Qe7 Re2 Bb6 R8c7 Bg1 R7c5 Ree3 Rf2 Re1 Re2 Rg4 Be5 Bh2 Bef4 Rg3 Be5 Rf6 Bc7 Rd6
2bqq3/K1PQ1n1B/Q1r4N/2r4n/nR1Bn2Q/2p2PRb/Nq1r4/k4Bb1 b - - 0 1 illegal: No proof kernel
1Bb5/rNp2B1K/B2Qb1r1/1N1Rq1r1/1Qnq1bPn/bnR2q2/P7/k5R1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 h5 g6 b5 d3 f5+ Ke5 h4 e4 b3 d4+ Kb4 g7 c3 d5 c2 d6 b2 d7 h3 Qd5 h2 Nh3 f3 Ng5 f2 Bf4 c1B Qf7 Na6 Na3 Kc3 Qd5 b1R Be3 Kb2 Bd3 f1N Qe6 f4 Kf5 b4 Kg6 f3 e5 f2 Rg1 h1Q Bc5 b3 Nh7 Qf3 Qc4 Ra7 e6 Ne3 e7 f1Q e8B Qe1 Be4 Nh6 g8R Nhf5 Qb4 Nc4 Bd3 Bf4 Ng5 Rh5 Ne6 Qe5 Bf7 Rg5+ Kh7 Nh4 Nb5 Rc1 Bf2 Nc5 Rg6 Qdf6 d8Q Qd4 Rg7 Qfe5 Qd6 Rc3 Rad1 Rc1 Be2 Ka1 Rd3 b2 Rc3 Nb3 Nd8 b1B+ Bd3 Rg6 Nb7 Re1 Be2 Bbf5 Rg8 Be7 Rd8 Bfe6 Bf1 Qf6 Rd7 Re5 Rd8 Reg5 Be3 Qde5 Bf2 Ra3 Ba7 Qd4 Bb8 Qfe5 Qa6 Ra4 Rd5 Bc5 Qd6 Ra7 Qa5 Ba3 Qab4 Qee3 Bd3+ Qe1 Bf1 Qee5 Be2+ Bac1 Na3 Ncd2 Ba6 Nc4 Rg3 Bb2 Nb5 Ba3 Rg1+
k2br1NN/1pqnP2b/4K1R1/B1qrR1q1/3Q4/1rbPnQ1n/3Q1R2/4bB2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 c5 e4 Kc7 h4 g5 e5 f5 a5 f3 Kg3 f2 h5 b3 e6 c4 d3 f4+ Kh2 g3+ Kh3 f3 Kg4 b2 Kf5 c3 a6 g2 h6 g4 a7 g3 h7 c2 Rh6 Ne7+ Ke5 Bg7+ Rf6 Re8 h8R Nf5 e7 Ne3 Qe1 Bf5 Rg8 Bh7 Ne2 g1B Bd2 c1B Bc3 g2 Ke6 Bd2 Nd4 Nd7 Na3 b1R Nc4 Rb3 d6+ Kc8 Rgf8 Qc7 Nf5 Rd8 Qe2 Be1 Ne5 Bh2 Rb1 g1N Ng6 Nh3 Ba5 Rb8 a8Q Re8 R6f7 Bgc3 Nh6 Bg1 Rg8 Rd8 Bg2 f1Q Qd2 f2 Nh8 Qe2 Rg5 f1Q Rf2 Qh5 Rg6 Qg5 Ng8 Qe2 Rb2 Qeh5 Bf1 Qgc5 Rf5 Qg5 Re5 Bgf2 Qa6 Ra8 Qc6 Kb8 Qf3 Re8 Bb4 Ra5 Rc2 Rb5 Ba5 Ka8 Rb2 Qa3 Ra2 Rd5 Rb2 Qac5 Ra2 Nb8 d7 Bg3 d8Q Bf4 Qd6 Nd7 Rb2 Q7b6 Qc2 Rd4 Rf5 Qd8 Qdd5 Bc7 Re5 Bb6 Qde4 Rd5 Qd4 Qb8 Qcd1 Bd8 Rf2 Qbc7 Qd2
kR1b2rb/p3rB2/4b3/n3BnQ1/3N1n1P/Q1NQ3P/q1rq3R/1B1qbK2 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 f5 b5 f6 bxa4 g3 h4 gxh4 exf6 Qd2 f5 Qd1 f4 c4 d5 b4 Kd7 e4 Kc6 e5 Kb7 c5 g5 b5 f5 b6 a3 h3 a2 e6 d3 e7 d4 e8Q g4 Be3 f3 Bd2 g3 Qg6 f4 Qh7+ Ne7 Ne2 g2 Na3 g1B Bg2 Bf2+ Kf1 Rg8 Qf7 Qd5 Ng1 Be6 Qe8 Nf5 Rc1 a1B Bb4 d2 Rc4 d3 Qea4 Be1 Qc1 d1Q Qd2 f2 Nc2 Nc6 Rh2 Re8 Ne2 Be7 Ncd4 Ka8 Qa3 Na5 c6 Bd8 c7 Re7 c8B Qb1 Qe3 d2 Qed3 d1Q Bc3 Qa2 Be4 Qad2 Rc6 Q5a2 Bd7 Bb2 Be8 Ba1 Bf7 Bb2 Qg3 Ba1 Bb1 Bb2 Kg2 f1R Qg5 Rf2+ Kg1 Rg2+ Kf1 f3 Rc4 f2 Rb4 Ba1 Rb3 Rg3 Bb2 Rc3 Rb4 Rc1 Nc3 Rc2 b7+ Kb8 Kg2 f1N+ Kg1 N1g3 Rb3 Nh5 Kf1 Nf4 Rb4 Kc7 b8Q+ Kd7 Qb5+ Kc8 Qd3 Kc7 Rc4+ Kb7 Rb4+ Ka8 Nd5 Rc5 Nb5 Qc4 Bh8 Be5 Nd4 Qca2 Rb7 Rc2 Nc3 Bg7 Rb2 Bh6 Bf6 Bg7 Be5 Bh8 Rb8#
1kR3bn/n4Nb1/2QN1b2/qP2bbR1/2B1P2K/BrQ5/2prN2b/1n2Q1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 c5 e4 Kc7 h4 g5 b4 a5 d5 f5 h5 a4 h6 a3 h7 a2 Be3 c3 Qb3 f3 Kg3 c2 Qd3 c1B Qa3 c4 Be2 c3 Bc4 f4+ Kf2 c2 Ne2 g3+ Kg1 g2 Kh2 g1R Nec3 g4 Bc5 f2 Bb3 f1B Ba7 f3 Qa4 f2 Nd2 Bc4 Ne2 Bg7 Bc5 Nc6 b6+ Kb8 b7 Bf5 d6 Nge7 d7 Na7 Qc6 Bg8 b5 Qa5 d8N Ng6 Bc4 Bcb2 Ba3 Bbf6 Rf1 a1B Nf7 Bac3 Rb1 Ba1 Rb3 Bae5+ Rg3 Ra1 Kg2 f1N Rh5 Rc1 Rc3 g3 Rg5 Ra1 Kf3 g2 Kf2 g1B+ Kg2 Ne3+ Kf3 Nd5 Kg2 Ngf4+ Kg3 Bh2+ Kh4 Rg1 Bb3 Ne3 Nc4 Nf1 Ncd6 Nd2 Bc4 Nb1 Nd8 Bge6 N8f7 Rd8 h8Q Bd5 Qh5 Bde6 Qf3 Bd5 Qf2 Bde6 Qe1 Ng6+ Kh5 Nh8 Kh4 Bd5 Bb3 Rg3 Qa6 Rg2 Nc4 Qb4 Bb2 Qa3 Nh6 Bg8 Nf7 Rd2 Ncd6 Rg1 Rc7 Nc8 Qa5 Ra6 Qc3 Ka7 Bc4 Qb4 Bc1 Ra3 Bb2 Rb3 Bc1 Kb6 Ba3 Na7 b8Q+ Ka5 Nb7+ Kb6 Qa8 Qa5 Qe8 Nc8 Qe6+ Ka7 Qc6 Kb8 Nbd6 Na7 Rc8+
1nBR2nR/rqB1bNpr/4KN2/4n3/k4b2/PrQN2P1/3b1r1Q/1r3r1R b - - 0 1 illegal: No proof kernel
Q6K/b3BR2/b4R1n/2P2bP1/r2kB2n/p1b2bq1/BNr2QN1/1rr1N2r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 b4 d5+ Kf3 Ke5 e4 a5 c4 f5 g4 h4 g6 h3 b5 a3 g5 a2 g7 a4 b6 a3 b7 h2 Qd3 Qd6 Qb3 d3 Nc3 d2 Na4 d1R Bd2 d4 Qc2 d3 Bg2 Rc1 Bb4 d2 Nb2 Nc6 b8Q Kd4 e5 Ra4 e6 Nh6 g8B Ne7 Qa8 Ng6 e7 d1B+ Qe2 Qb8 e8N Bc5 Nf6 Ba7 Nh5 Rb1 Be7 Nh4+ Kf2 f3 c5 Qb3 Kg3 f2+ Kf4 f1B Be4 Bd7 Qe1 Ba6 Bf7 Bf3 Qf2+ Kc3 Ke5 f4 Kf6 Bf5 Kg7 Rc1 Qg2 Kd4 Qf2+ Qe3 Rb1 a1B Ba2 Rc2 Rc1 Rb8 Rf1 Rbb4 Kh8 Rbc4 Nh3 Rc1 Rhg1 h1R Rg4 R4c2 Ng1 Bg2 Rg3 f3 Nf4 Rb1 Nfd3 Rbc1 Nh3 Rb1 Nhf4 Rbc1 Qd2 f2 Ne1+ Qd3 Rg4 Bf3 Nfg2 Rb1 Rf4 Rbc1 Rg1 f1R Qf2+ Qe3 Nbd3 Bc3 Nb2 Bh7 Rf7 Bf5 Ned3 Rfe1 Rf1 Rb1 Rf6 Rec1 Nde1 B3g4 Qe2 Qg3 Rf4 Bf3 Rf7 Bh3 R4f6 Bf5 Qf2+
6B1/3rn1Q1/Knbb1nP1/N7/1q1Pr1RQ/r2kB3/Qrp4R/2n1RnrN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Kd6 Ke2 Ke5 g4 Kd4 b6 c5 d3 a5 b5 f5 b7 h5 g5 c3 g6 c2 b6 f3+ Kd2 c4 e5 a4 e6 c3+ Ke1 h3 e7 a3 e8Q h4 Qd7+ Bd6 Qf7 f4 Bb2 c1N Qfb3 h2 Qf7 h3 Qd7 a2 Qe2 f2+ Kd1 f3 Kc2 Nf6 Ba3 Rh7 Nd2 Qf8 Qg7 Nc6 b8R Bb7 Nc4 Ra4 Na5 Ne7 Qd2 Bd5 b7 Bc6 Rd8 Rb4 b8Q Rh4 Qe1 Re4 Qa7+ Rb6 Be2 f1N Qh4 f2 Bg4 Ke3 Be6 Nd2 Ne2 f1N Bg8 Nc4 Ng3 Kd4 Rb1 a1R Rb4 Ke3 Re8 Ra2+ Bb2 Ra3 Qa8 Rb7 Ba1 Nb6 Ra4 Re5 Rg4 Rd7 d4 Re4 Bb2 Nec8 Re5 Ne7 Qa6 Qb8 Qc4 Qf8 Qa2 Qb8 Rh5 Qb7 Rg1 h1R Rh8 h2 Rh6 Nd2 Rf1 Rg1 Nh1 Ke2 Rd1 Nf1 Rh8 Nb3 Bc1 Qb8 Be3 Nc1 Kb1+ c2+ Kb2 Qf8 Re1+ Kd3 Rh7 Ra4 Rh6 Rb4+ Ka3 Qb8 Ng3 h1R Rh8 Rh3 Nh1 Nbc8 Rh6 Rb5+ Ka4 Rf3 Nb7 Rb2+ Ka5 Nb6 Ka6 Nbd5 Na5 Qb4 Bf2 Nb6 Rh5 Kd2 Rh8 Ra3 Be3+ Kd3 Qg3 Nd2 Rh2 Nf1 Qh4
1B1R3k/bbn1P3/1qn1r3/3b1n2/RRP2Qb1/2Qr3n/3nBp1b/KN2N1N1 b - - 0 1 illegal: No possible last move
3N1q2/1bR1rnqQ/nn2BrQb/2B2Q1N/3nP1K1/n2k3P/2pbB2R/6n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 e4 Kc5 a5 Kd4 a6 b5 d6 g5 h3 c5 d7 f5 a7 b3 d3 b2 Qa4+ c4 Ra2 f3 Kg3 f4+ Kh2 b4 Nd2 b1Q Qb3 f2 Ra1 g3+ Kg2 c3 Kf3 c2 Qa2 b3 Qa6 g2 Qb7 g4+ Ke2 g3 Kf3 b2 Ra5 Qa1 Be2 f1N Nc4 b1N Nd2 Rh6 Nc4 Na3 Nd6 Nd2+ Kg4 f3 Nf7 f2 Rc5 f1N Rc7 Ndc4 Rh2 Rf6 Be3+ Kc3 d4 Bh6 d5 Nd2 d6 Nb3 Qd5 Bb7 Qf5 Qf8 d8Q Nd4 d7 Na6 Qe7 Re8 d8Q Qb2 Qed7 Re7 a8B Qa1 Bf2 Kd2 Q8c8 Nb6 Nd8 Qc3 Qg6 Qa1 Bd1 Kd3 Ne2 g1B Be3 g2 Ng3 Bf2 Nh5 g1N Qdf5 Bh4 Qcd7 Be1 Bf2 Bed2 Be3 Bc8 Bd5 Bb7 Bf3 Bg7 Be6 Nh6+ Kh4 Nf7 Kg4 Bh6 Bf2 Nd6 Bd1 Ndf3 Bc5 Nd4 Qh7 Nf7 Qfg6 Qg7 Qd5 Qa2 Qdg5 Qd5 Q5f5 Qd6 Nc6 Qd8 Bf3 Qe8 Nd8 Qef8 Be2+
2n2bB1/5n2/q5rk/R2n3n/K1b1P2r/2Q2PNq/Q1n2Q1p/B1R1RNnq b - - 0 1 illegal: No proof kernel
1n2r3/3QQbkr/NK1nq3/B2b2p1/b2N1Rb1/PB1rBn2/Pn6/R1b1R3 b - - 0 1 legal: proof: f4 a5 g4 c5 d4 cxd4 f5 h5 f6 hxg4 Bf4 a4 Bh6 a3 bxa3 exf6 Bd2 f5 Bc1 f4 Kf2 b5 c4 d5 e4 f5 h4 Kf7 e5 b4 c5 b3 h5 f3 h6 g3+ Ke1 f4 Kd2 f2 Kd3 f3 h7 b2 c6 g2 c7 Qe8 Rh3 Nh6 Qe1 Bg4 c8Q Qe6 Rh1 Nf5 Bh6 Nd6 Nh3 g1N Bg2 f1B+ Qe2 f2 Nd2 b1R Bf3 Rd1 Nf4 Bg2 Rh4 f1B Qd7+ Be7 Be4 Nf3 Bg6+ Kf8 Bf7 Bg5 Bg8 Bh1 Bf7 Bfg2 Qe1 Bf1+ Ne2 Be3 Bf4 g5 Bg8 Ra7 Bf7 Rg8 h8B Rc7 Bf6 Bfg2 Be7+ Kg7 Bd8 Rb7 Ba5 Re8 Rh2 B2h3 Rf2 Bh5 Bg8+ Bf7 Rf1 Bg4 Rf2 Rdb1 Nb3 Bc1 Nc5 Bg2 Be3 R1b3+ Kc2 Rd3 Na6 Rd1 Rf1 d3+ Kc3 d2 Nd4 Ra7 Kb4 Bh1 Nc2 d4 Kc5 d3 Kb6 Rc7 Nd4 Ra7 Qe7 Bg2 Qg3 Rd7 Rf2 Rh1 Rf1 d1N Qh3 d2 Rf2 Nb2 Rf1 Qf6 e6 d1B Rf2 Ba4 Rf1 Ne1 Rf5 Nf3 Rf4 Bh5 Qf5 Bg4 Qd5 Rdd8 Qdb7 Rh6 Qed7 Rh7 e7 Qe6 Qbc7 Rc8 Qa7 Red8 e8R Rc3 Re7 Re8 Qac7 Rd3 Qcd8 Qd5 Re6 Qf5 Q8e7 Qg6 Re5 Qe6 Nb5 Qd5 Qc7 Ng1 Bc5 Be4 Bf2 Nf3 Nd4 Qc4 Qc8 Ba8 Re1 Qd5 Qe2 Bfh5 Qd7+ Qf7 Qe4 Qe7 Bc4 Bd5 Bb3 Bhf7 Be3 Qf6 Qee7 Qh6 Rf1 Qe6 Re1
2B3q1/qb4nb/Qb1R2R1/1bqPBr1P/2r2b1K/1bk4p/3nNQ2/R5BN b - - 0 1 illegal: No proof kernel
6b1/b4Qk1/2bK3n/RRrpn2n/2b2PBQ/2BP3N/3QrRq1/r2N2rb b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 Ke2 Kf7 Ke3 h5 Kf4 e5+ Kf5 a5 f4 e3 g4 h3 c4 h2 c5 a4 g5 b3 b6 e4 Ke5 h4 c6 a3 c7 b2 g6+ Kg7 b7 e2 d3 e1N Nf3 e3 Bh3 e2 Nbd2 b1B Ra2 Bc5 Nb3 Qg5+ Bf5 h3 Qc2 Nh6 Qc3 Rg8 Nbd4 Qg2 Rb2 a2 Rg1 a1R Nc2 h1B Bd2 h2 Bg4 Ba7 Ne3 Ba2 Ng5 Bc4 Nh3 Nf3+ Kd6+ Ne5 Nd1 e1R Rf1 Ra5 Ra2 Rc5 Rf2 Re4 Ra5 Re2 Ke7 d6 Qc2 B8e6 c8Q Bf7 Bc3 Nd7 b8R Nf6 Rbb5 Nh5 Qb7 Rgd8 Qf3 Bg8 Qg3 Rdc8 Qh4 R8c6 Rb7 Rb6 Qd2 Rb1 Rbb5 Rc1 Ne3 Rg1 Nd1 Qg3 Rb8 Bc6 Rbb5 d5 Kd6 h1B Ke7 Qg2 Kd6 Kh8 g7+ Kh7 Bf3 Rb8 Rb3 Bf7 Bg4 Kg6 Rba3 Rb1 Rb3 Ra1 Rbb5 Be6 Ng5 Bf7 g8Q+ Kf6 Qe8 Bg8 Nh3+ Kg7 Qf7+
1Nr1nK2/k2RNn1b/1bn1RQ1P/r2n4/bP6/1B2p2q/2B1R1nb/2B3Qr b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 h4 d5 c4 Kd7 f4 Kc7 b4 Kb7 h5 e5 b6 g5 f5 e3 Kd3 e4+ Ke2 g3 f6 g4 c5 a4 h6 g2 f7 a3 Rh3 d3+ Ke1 a2 Nc3 d2+ Ke2 g3 Rh1 d4 Rh3 Qh4 Rb1 a1R Rh2 Nf6 Qe1 d1N Nf3 g1B Nd5 g2 Ne7 Qh3 Ne5 Nc6 Nd7 Ne8 Nb8 R8a5 Qg3 Bg7 f8Q Be5 Qf6 Bf5 Qg4 Ka8 b7+ Ka7 Rb3 Bh7 Rd3 Bc7 Qgg5 Bb6 Qgg6 Ne5 c6 Nf7 c7 Rb1 c8B Nc3+ Ke1 e2 Kd2 e1N Be6 Rg8 Bb3 Nd5 Re3 Rh8 Bd3 Rba1 Bdc2 d3 Re2 Rg8 Rh1 Bh2 Rf1 g1N Qg4 Nf4 Kc3 e3 Kc4 Neg2 Rd1 d2 Qg3 Nf3 Qe1 R5a3 Qg1 Nd5 Kb5 Ra5+ Kc6 Qg3 Kd7 Nd4 Na6 Rb1 b8R Nc6 Rc8 Qh4 Nb8 Qh5 Rd8 Rf8 Rf1 d1B Rf5 Rh8 Re5 Qh3+ Re6 Ned6 Rg8 Rba1 Rg5 Rc8 Rg7 Ne8 Bd3 Nd4 Ng6 Be5 Qgf1 R5a2 Ba3 Qh5 Bbc4 Nc6 Be4 Bb3 Bc2 Nfd6 Qh1 Rg1 Bc1 Qh3 Qh2 Rh1 Qg1 Ra5 Rf7 Ba4 B4b3 Bh2 Re7 Ndc7 Rg7 Nd8+ Ke7 Nd5+ Kf8+ Bd7 Ne7 Ba4 Rf7 Nc6 Ng8+ Ndc7 Rd7 Nf7 Rdd6 Nd5 Ne7 Bg3 Rd8 Bh2 Rd7+
2B2R1Q/b3rB2/1N1Q1N1p/k1b4P/1q6/1nr1bP1K/2R1Rrnb/1rb1n1B1 b - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 f3 axb4 e5 Bg4 f4 Bf3 e6 fxe6 gxf3 e5 Qb3 e4 Qc2 Qd6 Qd1 Qd8 Kf2 Kd7 Kg2 Kc6 d4 Kb5 a4+ Ka5 h4 e5 f5 c5 h5 g5 d5 b5 d6 e3 f6 e2 d7 e1B f7 e4 Be3 b3 Qd6 b2 Qf6 b4 Qc6 g4 Qd6 h6 Rh3 g3 Nd2 b1R Qe5 b3 Rh1 b2 Be2 c3 Bd4 e3 Qf5 c2 Qd3 c1B Qh7 c4 Bf6 c3 Bc4 e2 Bh4 c2 Bd5 Bc5 f8Q Nc6 Qd6 Qe7 d8R Nd4 Bf7 Nb3 Ra2 Ra7 Rh2 Bef2 Kh3 e1N Rf8 g2 Ne2 g1B Ne4 Nf6 Nf4 B1e3 Nd5 c1B Nb6 Nd5 Nf6 Rc7 Qg7 Rh7 Qh8 Rc6 Rg2 Bh2 Bg5 Bfg1 Rc2 Qe4 Bh4 Qb4 Bf2 Ra1 Re2 b1R Rad2 Ra2 Rc2 Ka6 a5 Nf4+ Kh4 Kb5 a6 Nfg2+ Kh3 Ka5 a7 Rg7 a8B Rc8 Be8 Re7 Bb7 Rc6 Bc8 Rab2 Nbd5 Ba7 Bf7 Rc3 Nb6 Bc5 Bh4 Bge3 Bf2 Ra2 Bg1 Nh4 Red2 Nhg2 Rf2 Ba3 Rc1 Rd2 Rc2 Bc1 Re2 Bef4 Re3 Rf2 Ree2 Bfd2 Bb7 Bde3 Bc8
b1q2b1N/4br1q/2n2RPN/1R2r1B1/2Kb2kb/1BN1P3/2Bp1Qn1/1n2bQ2 b - - 0 1 illegal: No proof kernel
B2brn2/nb1N3n/2nQ1RPp/B1N2br1/R7/k1Kb4/2RNP3/1b1Qq2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 c4 Kd6 b4 f5 g4 a5 g5 a4 b6 d3 g6 a3 b7 f3 b5 Kc5 b6 Kb4 c5 d5 c6 f2 c7 a2 Qc2 h3 Rh2 h6 Na3 d4 Nb5 f4 Na7 f3 Qd1 Nf6 Bb2 Nh7 Rc1 a1N Qc2 Be7 Qc6 Re8 Rc5 Nb3+ Kd1 d2 Kc2 d1N Qf6 d3+ Kb1 d2 Kc2 Nd4+ Kd3 Ne6+ Kc2 Nc3 Rh5 Nef8 Nb5 Ra5 Nd4 Nb5 Nb3 Na7 Bg2 f1B Rf5 f2 Bc3+ Ka3 Qd4 d1B+ Kd3 Bg5 Nf3 Bc2+ Kc4 Bf6 Qd1 Bb1 Nfd2 Rae5 Bf3 Bg2 Ba5 f1B Bc6 Bd7 c8R Bge4 Rf4 Bh4 Rhf2 h2 Bd5 h1R Rc6 Na6 b8Q Bfg2 b7 Nb4 Qd6 Bed3+ Kd4 Bc8 b8N Qb6+ Rc5 Bd8 Ba8 Rg5 Re4 Bch3 Rf6 Bf5 Rg4 Bb7 Nd7 Bdc2 Kc4 Bce4 Rc6 Qg1 Rc7 Qf1 Kd4 Bed3 Rc2 Qf2+ Kc3 Qe1 Nbc5 Nbc6 Ra4#
1Rr1Qr1b/n2nN2b/q2R2pK/1n1nnB2/1Q6/BqN2P2/kq2Q1PN/4n3 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 h4 fxe4 h5 b5 axb5 Qc7 h6 Qf4 Na3 Qxh6 Nb1 Qh2 Kd2 Kf7 c4 Ke6 b4 h5 b6 a5 c5 Kd5 c6 e5 b7 a4 c7 d3 Ke3 Kc4 f3 d5 b5 d4+ Kf2 e3+ Ke1 e4 b6 a3 Nh3 a2 Be2 h4 Nf4 h3 Nh5 Nd7 b8Q Ngf6 b7 Qd6 Nc3 h2 Qc2 Qa6 Nf4 Nd5 Rf1 h1Q Rb1 a1Q Nh3 Qb2 Bd1 e2 Kd2 e1N Be2 e3+ Kd1 g6 Qa7 Bg7 b8N Rf8 Qb6 Bh8 Qd2 Qg1 Qd6 Kb3 Nb5 Ka2 Nf2 Qh2 Qc2 d2 Nc6 Nd3 Ng4 N3e5 Ne7 Bb7 Bd3 Rac8 Ke2 d1N Bf5 d3+ Ke1 e2 Kd2 e1N Qb4 Qh7 Nh2 N1c3 Rf2 Qf7 Re2 Nf4 Ke3 Qb3 Rd2 Bd5 Qd1 Bg8 Qe2 Bh7 Rd1 Rce8 c8Q d2 Qa8 Rc8 Qb8 Qa1 Ba3 Qab2 Qa8 Ncd5+ Ke4 Ne6 Qc6 Nd4 Qe6 Nc3+ Kf4 Nd5+ Kg5 Ndc6 Kh6 Na7 Qf7 Nc5 Qe8 Ncd7 Rdc1 d1N Rc6 N1c3 Rb6 Nc4 Rb8 Nce5 Rd1 Nc7 Rd6 N3d5 Qe3 Ka1 Nc3 Ncb5 Ne4 Kb1 Qe2 Ka2 Nc3+
2K1B2b/2Q3nR/Q1r2rpb/2R2N2/1BR1q1N1/bPn3Pr/n2nB3/3k2nr b - - 0 1 illegal: No extended proof kernel
5k1n/Bnr2Bb1/4QPr1/Pr2RR1b/2q1B2n/NrnpK3/nQ3Rb1/1N6 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 e5 c4 h5 f4 b5 g4 d5 a4 b3 g5 b4 c5 b2 f6 b3 c6 d3 f5 e4 c7 e3+ Ke1 d2+ Ke2 h3 g6 h4 g7 h2 a5 d4 Qe1 d1N Ra4 d3+ Kf3 e2 Bg5 h3 Bg2 Nd7 Bf1 Ne7 g8B Ng6 Bh6 Rh7 Na3 b1R Qg3 e1N+ Ke4 b2 Nb5 Nf3 Bd5 Bg7 f7+ Kf8 Be2 Nh8 Bb7 Nh4 Bh5 Nc3+ Ke3 Rb8 Ne2 Na2 Qf2 Nc5 Be4 Nb7 Re1 h1B Nec3 h2 Na3 Qd5 Rb4 Bd7 c8Q+ Be8 Rb5 Qc4 Qe6 Bg2 Re5 h1R Rf1 Rh2 Qd2 Rh1 Rf2 Rhc1 Bg5 Rh6 Bd8 Rg6 Bb6 Rc2 Ba7 Rcc1 Ncb5 Rc3 Qc1 Rb3 Nc3 Rc8 Qd2 Rc5 Qe2 Rc1 Qd2 b1N Qb2 Nd2 Ncb1 Rcb5 Bd5 Ne4 Bc6 Ng3 Be4 Ne2 Bhf3 Qc8 Bc6 Rf6 Bfd5 Rc4 Be4 Nec3 Qd5 Qe6 Bd7 Ke7 f8R Bh5 Be8 Rg6 Rf6 Rc7 Bf7 Kf8 Qc6 Qd5 Qe6 Rg5 Rg6 Rg4 f6 Qc4 Rgg5 Rg3+ Rf3 Rg4 Rgf5 Rg6 Rf2
1QRr2R1/b4q2/1N2P2n/QrQ1nkN1/1bn2n1B/b1r2B2/Kpb2P2/2b1N3 b - - 0 1 illegal: No proof kernel
8/7n/bRnrP1bQ/Bnr2B2/2r4Q/kRN1bn1K/1pP1bNN1/q4bR1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kg2 Kd6 e4 Kc5 h4 f5 a4 b5 a5 d5 a6 g5 e5 b3 e6 Kb4 h6 g4 h5 f3+ Kh2 d3 a7 d2 h7 f4 h6 g3+ Kh3 d4 Kg4 g2 Bd3 b2 Qe1 f2 Bg6 f1B Qg3 d1R Qd3 f3 Qe4 f2 Ra3 Qa5 Qf5 d3 Rh5 d2 Nc3 b1N Nge2 g1N Rg5 Nc6 Bb2 Ba6 Ne4 Nc3 Qf4 Rc8 a8R Nf3 Bf5 Bc5 Rb8 Be3 Rb6 Nf6+ Kg3 Rhg8 h8Q Nh7 Qh4 Qa4 Rg4 Rg5 Ra1 Rh5 Rc1 Qa1 Ba3+ Ka4 Bb4 Bh3 Ba5 f1B Rf4 b4 Nf2 Nb5 Nc3+ Ka3 Rb1 b3 Rb4 b2 Q8f6 Nf8 h7 Bg4 h8N Nh7 Qg7 Rg5 Qgh6 Bh5+ Bg4 Rc5 Ng6 Rc4 Nf4 Bg6 Ng2 Nb8 Qh1 R8c5 Q1h4 Nc6 Bh3 Rc1 Bg4 d1B Kh3 Bde2 Bf5 Rd1 Rc1 Rd6 Rb1 Bd3 Rc1 Bfe2 Rh1 Bf1 Rg1 Bde2 Rb3#
1nQr2b1/1N5R/B1rp3q/k1n2rQ1/rn3NnQ/2KR2b1/P2B1P1b/3r3B b - - 0 1 illegal: No possible last move
4kn1b/1Nn4P/1QrB1Pp1/nN2b3/n1b1b1r1/1r4R1/BR1RQ1N1/1q2b1K1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 a5 Kf2 d5 c4 e5 h4 a4 b4 d3 c5 e3+ Kg2 g6 c6 d2 f5 a3 c7 a2 f6 e4 b6 e2 h5 e1B b5 e3 b7 d4 h6 g3 b6 e2 h7 d3 Nf3 Bf5 c8Q Nd7 b8R Ra6 b7 Rc6 Na3 Be4 Qc2 d1N Qc4 d2 Qd5 Nc3 Rh6 d1B Bf4 Bg7 Qd3 Bb3 Rh4 Na4 Qc7 Bc4 Rd1 a1N Kg1 g2 Bg3 Nb3 Nb5 Na5 Rd2 Ne7 Rh3 Nd5 Qb6 Nc7 Bd6 Nf8 Nh4 Bg3 Qde3 e1B Qe2 Be5 Rg3 Nce6 Ra8 Nc7 b8N Qc8 Na6 Qb8 Nc5 Rg8 Nb7 Bh8 Kh2 g1R Ng2 Qd8 Rb8 Rg7 Bc5 Rd7 Be7 Rd3 Bd6 Rb3 Qef2 Bg8 Bc4 Qc8 Qe2 Qd8 Bd3 Bc4 Bb1 Qc8 Nd8 Qf5 Ba2 Rf1 Rb7 Rf4 Kg1 Rg4 Rb2 Na6 Rd7 Nc7 Nb7 Qg5 Be7 Qc1 Rdd2 Qb1 Bd6
1rbQR2R/bN1n2Pn/1bk5/Qp6/bnbrNr2/QR3P1K/2B5/1q2Bn2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kd7 a4 e5 g4 h5 d6 c5 g5 b5 g6 e3 d5 b3 g7 e4 a5 e2 a6 c4 a7 b2 Nf3 h3 Ng1 h2 Bd2 h4 Bc1 c3 Nd2 b1B Ra3 h3 Ra2 c2 Ra1 Rh4 Ra5 Nf6 Bg2 Rf4 Ra1 Nh7 Bb2 c1N Nb3 Na2 Qd3 Bc2 Bc3 Nb4 Na5 Ba4 Rb1 Qe8 Qg3 Qg6 Rb3 Be7 Bd2 Bd8 Nf3 Bb6 Ng5 Qf5 Nb7 Qg6 Rg1 h1N Qe3 Ng3 Rh1 h2 f3 Nf1 Kf2 e1R Bh3+ Qf5 Kg2 Rd1 Be1 Rd4 Qc3 e3 Ne4 e2 Qd2 Ke8 d7+ Ke7 d8R Nd7 Qa2 Rb8 d6+ Ke6 a8Q Kd5 Rh8 Kc6 Re8 Ba7 Qa3 Bb6 Bc3 e1B Qa5 Bf2 Be1 Be3 Bg4 Bf2 Kh3 Ba7 Nd2 Qb1 Bf5 Bg1 Bc2 Be3 Rg1 h1B Ne4 Bb6 Rg4 Bg2+ Kh4 Nc5 d7 Ba7 d8Q Nd7 Kh5 Bh3 Rh4 Be6 Rh2 Bc4 Rh1 Rf8 Kh4 Rf4+ Kh3 Rd1 Kg2 Beb6 Rh4 Rd4 Kh3 Nhf8 Rh8 Nh7 Bh4 Nh2 Bf2 Nf1 Be1
qrr5/1b1B1QpK/b3Nr2/1Rbk4/PN3b2/BQn1b3/1r3R1P/nn2Q2R b - - 0 1 illegal: No possible last move
Q6n/2nbrRp1/3rN3/3B1P2/b3R1qr/Knk1PQ2/nr3bBN/2R1B2n b - - 0 1 illegal: No possible last move
N4N2/2bq1P1b/n1nRBnr1/2Bp1KNQ/Q7/1k2b1Pr/r2bnR2/2R3n1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Ke6 b4 Kd5 c3 a5 g3 h5 f5 e5 b6 h3 b7 d3 Ke3 Kc4 f6 d5 f7 h2 b5 a4 b6 a3 Qf3 h4 Bd2 a2 Ne2 h3 Qf6 Bc5+ Nd4 Rh6 Qg5 Na6 b8Q Qd7 b7 Nf6 Qf5 Rg6 Rg1 h1R Qd6 h2 Kf2 e3+ Kf3 e2 b8R e1B Qc6 e4+ Kf4 e3 Bh3 e2 Be3 d2 Qh5 d1N Rf1 Bd2 Rf2 e1N Be6 Nf3 Rb6 Ne5 Kf5 Ra7 Qa8 Bd6 Rc6+ Bc5 Rd6 Nc6 Bh6 Bb6 Bf8 Bc7 Be7 Nb2 Bf8 Nd3 Be7 Be3 Bf8 Nc1 Nd2+ Kc5 c4 Kb4 c5 Ne2 Re1 a1B N2f3 Bc3 Ng5 Bcd2 Rc1 Ka3 Nh7 Kb2 Nf3 Kb3 Nfg5 Rd1 Nh3 h1N N3g5 Rg1 Be7 Rg2 Nf8 Rh2 Qh4 Rh3 Qg4 Nab4 Qh5 Ra2 Qa5 Nb8 c6 N4a6 Rf3 Nf2 Rf4 Bd8 c7 Nc6 Rf3 Rh4 Rf4 Nh3 Rf2 Nhg1 Qb5+ Ka3 Qc4 Rh3 Qch4 Kb3 Qf4 Bb7 c8N Bc7 Nb6 Bc8 Na8 Nab4 Ngh7 Ba6 Ng5 Bd3+ Qe4 Na6 Bd8 Bb8 Bb6 Bc7 Bc5 Bc2 Qh4 Rg8 Qh5 Ncb8 Ke5 Rg7 Qeh4 Bh7 Qd4 Rg6 Kf5 Nc6 Qa4+
Q7/r3p1Nn/1R1P2K1/b2n1N1N/b1Pr1B2/b2R1Qb1/1q2B1rr/r1n3kR b - - 0 1 illegal: No possible last move
4k3/BbnP3K/Bbqr2nN/Np2R2R/2Br2rr/4N1P1/1b4Q1/1Q1bnb2 b - - 0 1 illegal: No possible last move, all moves rejected
2qr1b2/2nP1BQ1/bQP1R2b/1nnN1r2/2K1pr2/1Q4nk/b1NR4/B3N1b1 b - - 0 1 illegal: No proof kernel
1r1q1r1n/1N1PNR2/pb2kBnr/3r1q2/8/1Q1rRb2/Q2QbrBP/6BK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 Kg2 f5 e4 c5 b4 g5 d4 c3 b6 a6 b7 g3 b5 g4 d5 c2 e5 c4 d6 c3 b6 Rh6 Bb5+ Nc6 b8Q f3+ Kf1 f2 Kg2 f1R b7 f4 Ba4 Ke6 d7 Bc5 Qe2 Nge7 Ba3 c1R Qa7 c2 b8B Ng6 Nc3 Nce7 Qb7 Nh8 Ne4 Neg6 Bc6 Bb6 Nd6 Rb1 Nf3 c1Q Qd2 Qc2 Nh4 Qf5 Bc5 Rbd1 Bc7 Rb8 Bg1 Rf3 Ra2 Rd3 Ra3 Rd5 Re3 Rf1 Qa7 Bb7 Qa2 Ba8 Nb7 Rd1 Qb3 Rd3 Qa2 Bc5 Qb6 f3+ Kf1 f2 Qbb3 Bb6 Kg2 Qff8 Nf5 Qff6 Ne7 Qf5 Kf1 g2+ Ke2 Kf7 e6+ Kf6 Bf4 f1B+ Kf2 Be2 Kg3 Re5 Be4 Red5 Be5+ Kg5 Bf2 g1R+ Bg2 Rf1 Bg1 Rf4 Nc6 Rf2 e7 Bd1 e8Q Be2 Bc7 Kf6 Ne7 Rf4 Be5+ Ke6 Be4 Rf3+ Kg2 g3 Qf8 Qc7 Qc8 Qd8 Qcc3 Rf1 Qcd2 Rf4 Bf2 Rf3 Rf1 Rf4 Kg1 g2 Bg3 Rf2 Bd4 Qg5 Bge5 Rf8 Rf7 Qf6 Bf3 Qf5 Kf2 g1R Bc5 Re1 Kg2 Rf1 Bcd4 Rf2+ Kh1 Qc7 Bg2 Qd8 Rf3 Rf1+ Bg1 Rf2 Re3 Bf3 Na5 Bc6 Nb7 Ba4 Qc4 Bad1 Qcb3 Bde2 Bf6+
n1brk2K/nBPQ1b2/N1Rpb2R/3nQ3/1q2r1Nb/4BnbP/3Q1N2/7r b - - 0 1 illegal: No possible last move
2Q1k3/K1P3P1/1n1qB3/2qqb2R/2q1nr1N/2nQNb1q/Rrp4B/q5RN b - - 0 1 illegal: No proof kernel
1K1B2r1/2p2RBb/1Q1b2rQ/5PB1/5Rk1/2PNbqn1/b1qn3r/1NN1b2b b - - 0 1 illegal: No possible last move, all moves rejected
K1n5/1PPQ1r1r/k1bB1b2/2n1Nr2/bRb1BB2/2qR2N1/3p2rN/3n1rQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 e4 Kc7 g4 Kb6 b4 f5 c4 f3 g5 f4 g6 h3 g7 f2 Qb3 f3 Qd1 d3 Ba3 h4 Nc3 d4 Nce2 a4 Ra2 d2 Ra1 h2 Rb1 d3 Ng3 h3 Bg2 Qc7+ Kd5 f1B e5 f2 e6 Ra7 e7 Nd7 e8N Nc5 Nf3 Be7 Nf6 Bd7 Ne5 Rh7 Nfg4 Bf6 Be4 Kb7 b6 Ka6 Rg1 h1R b7 Rh2 b8B Rg2 Nh2 Be2 Bc1 f1R Rb2 Qa5 Bd6 a3 Qa4 d1N Bf4 Be8 Qd7 d2 Kc6 a2 Rb3 a1R Rd3 Qa3 Rh1 Qc3 b5+ Ka5 b6 Ka6 Rg1 Ra5 Rh1 Nb7 c5 Ne7+ Kc7 Nc8 c6 Nc5+ Kb8 Rb5 g8Q Ra5 Qd8 Raf7 c7 Ba4 b7 Rb5 Qd7 Ra5 Nhg4 h2 Ka8 Rb5 Rg1 h1B Nh2 Ra5 Rd4 Rb5 Rb4 Bc4 Qg7 Rf3 Re1 Rf1 Re3 Re2 Bg6 Bc6 Rd3 Rg2 Be4 Ne6 Neg4 Rf5 Ne5 Nc5 Ne2 Rgf2 Qg1 Rg2 Ng3
nBK1Qr1q/P2N1N2/pQn2b2/R4Qb1/1P1b4/2bRn3/2b1r2n/2kB1N1r b - - 0 1 illegal: No proof kernel
nQbbr2r/P2p1PB1/nB6/1Rb2q2/4rR2/3RNBnn/K1Q2b2/4N1kn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 Kb2 g5 a4 e5 f4 b5 c5 g3 h5 g4 h6 b3 h7 g2 a5 b4 c6 g3 f6 d3 f7 d2 a6 Ke3 f5 Kf2 f6 e4 c7 e3 a7 e2 Ra4 e1B Nf3 g1B Ne5 g2 Rh4 Ne7 Re4 Na6 Qc2 Nf5 Ra2 Be7 f8R Ng3 Be2 d1N+ Ka1 Qe8 f7 Bd8 Rh4 Qe6 Qc4 Qf5 Ra3 b2+ Ka2 Rb8 Nc3 b1N Rh2 Nd2 Bf3 Ra8 Qd3 Nc4 Nd5 Nb6 Ne3 Rb8 Rg8 Na8 Rg4 Re8 h8B b3+ Kb1 b2 Rf4 Rb4 Bg7 Re4 Ka2 b1R Rh5 Rb8 Qd6 Bb4 Rd3 Bc5 Bd2 Rh8 Ba5 Re8 Bb6 Rh8 Nd5 Kf1 Qf8 Bgf2 Ne3+ Kg1 Qd6 Be1 Qc6 Nf2 Qa4 Nfh1 Qc2 Bb7 c8Q Bf2 Qc7 Bc8 Rg5 Kh2 Qb7 g1N Qc7 Nh3 Qd6 Rb7 Qb8 Kg1 Rd5 Rg8 Nd3 Rge8 Ne1 Rc7 Rd3 Rc6 Rgg4 Rh6 Rg5 Rhh8 Rh5 Qg4 Re5 Qf5 Red5 Bf8 Ra5 Bc5 Rb5
1n4r1/1n4bq/1b1bb2R/kr3BP1/N1r2Pb1/4p1KQ/1N2Q1B1/rQR2qB1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 a5 c4 h5 f4 e5 Kf2 d5 g4 Kd7 b6 Kc6 c5 a4 b7 a3 g5 a2 Qd2 h3 Ne2 Kb5 c6 h2 c7 d3 Bg2 h4 Qe3 d2 Ng1 d1B Qa7 d4 Nh3 d3 Rg1 h1Q Qd4 e3+ Kf1 d2 Bb2 e2+ Kf2 e1B+ Kf1 e4 Qe3 Bf2 Bc1 Nh6 Qf3 Nf7 Qe3 Qd3+ Qe2 Bb6 Nf2 Be6 c8B h3 Nc3+ Ka6 b5+ Ka5 Bd7 h2 Na4 Rg8 Bc8 Qd7 Nd3 Nd8 Ndb2 Qh7 Rb1 a1B Bd7 Bc7 Kf2 Bfd6 Kg3 Bb6 Re1 Qf1 Bc8 Na6 b8Q h1R Qb7 Rb8 Qd7 Ba2 Qh3 Nb7 Bf5 Be6 Qe3 Bf3 Qe2 d1R Be3 Rc1 Bg1 Rc4 Rbc1 e3 Red1 Bg4 Rd5 Bd7 Re5 Bc8 Re6 Bd7 Rh6 Be6 Nd1 Bg7 Ndb2 Rbd8 Nd1 Nb8 Ndb2 Bbd4 b6 Rdc8 Bb1 R8c5 Bc2 Rb5 Bf5 Nd8 b7 Bb6 Qh2 Nd7 b8Q Nb7 Qc8 Nb8 Qh3 Ba3 Qe8 Bd6 Qg6 Rc2 Rb1 Bdc5 Bh2 Bd6 Bd3 Qc1 Qf5 Rd1 Bg1 Rc4 Bc2 Rdd4 Qfd3 Qf1 Qdd1 Rd2 Bf5 Rd3 Qdc2 Ra3 Rc1 Ra1 Qb1
B2R2N1/b1q2q2/k1Q5/1rB2pP1/N1n1b1Q1/n2n4/2Rb2PR/1nbrbB1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 b4 Kc6 d4 Kb5 e4 a5 d5 h5 e5 c5 d6 f3 e6 h4 e7 h3 e8B+ Nc6 d7 a3 Be2 a2 Qa4+ Ka6 Na3 h2 Bd3 Ne5 Nb1 Bb7 Bb2 Rb8 Qd1 a4 Ba3 Ne7 Bc1 a3 Nc3 Nd5 Qe1 Qc7 Kg3 f2 d8Q f1Q Nb1 Nc3 Qe3 Be4 Ba4 Rb5 Nd2 Nb1 Bac2 c3 Ne2 c4 Qf3 Bc5 Qa8+ Ba7 Qg4 Rd8 Ba4 c2 Nc3 Qf5 Bf1 f6 Bb2 c1B Bb3 Rd7 Na4 c3 Bd5 c2 Bd4 Nc4+ Kh3 Qe6 Bc5 f5 Qe8 Qf7 Ba8 Nc3 Rb1 a1B Rb2 Nb1 Ra2 Rd5 Qd7 Bc3 Qc6+ Qb6 Rb2 a2 Kg3 a1N Ra2 Bf3 Ne4 B1d2 Nf6 c1B Ng8 Be4 Rc2 Rd7 Rg1 h1N+ Kh2 Nf2 Rh1 Be1 Kg1 Rd4 Rh2 Nd3 Kh1 B3d2 Qe8 Qbc7 Qc6+ Rb6 b5+ Ka5 Rb2 Nc2 Ra2 Rb8 b6 N2a3 b7 Rd7 Rc2 Rd6 Qd7 Ka6 Qc8 Rd5 Qe8 Rbd8 b8R R8d6 Rd8 Rd7 Bd4 Rb5 Bc5 Nb4 Ra2 Be3 Be7 Rd1 Bc5 B3d2 Rc2 Nd3 Qc6+
B3BR2/b1k3NN/2NQ1R2/1bP1B3/p7/1rnq1b1K/n1b1n1Pn/1n1rq2Q b - - 0 1 illegal: No possible last move, all moves rejected
4RB1N/1Q2nN1n/q1Rrbk2/2p2b2/2q1B2r/P2R2Pq/q1b3bb/1QK2Q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Ke7 d4 f5 Kd2 c5 a3 h5 d6+ Kf6 d7 b5 d5 f3 d6 f2 Ne2 f4 Kc2 b3+ Kb2 b4 Rh3 f3 Rh2 h3 Qd2 h4 Ng1 Nc6 Qd5 Nce7 Ne2 Ra6 Nf4 Qb6 d8Q Bf5 Be2 f1B d7 f2 Bf3 Bc4 Qb7 f1Q Ng6 Bce6 Bh6 Qc4 Nc3 Qa7 Qa5 Rd6 d8Q Qaa6 Qdb6 Rh7 Kb1 b2 Nb5 Bg7 Rh1 h2 Nh8 h3 Qa4 Bf8 Qd1 Bg7 Rg1 h1B Qf1 h2 g3 Bg2 Ra2 h1Q Ra1 Qh2 Rh1 Qh3 Rh2 Rd5 Nd6 Rd4 Ndf7 Rd6 Bc1 Rh4 Bh6 Qa2+ Kc2 b1B+ Kc1 Bc2 Rb1 Qd5 Rb3 Qdc4 Rd3 b3 Qb5 Ng6 Rh1 N8e7 Qb4 Nf8 Qbe1 Bd7 Rh2 Nh7 e5+ Ke6 Be4 b2+ Kd2 Bf6 Bf8 b1Q Qc1 Qb2 Qb1 Qba2 Kc1 Bg5+ Rd2 Be3 Rh1 Bg1 Rd3 Qca4 Rh2 Bh1 Rhd2 Bg2 Rd1 Bh2 R1d2 Bd1 Rb2 Bc8 Rb6 Bc2 Rc6 Q4c4 Q1b6 Ng6 Qb1 Bd7 Bh6 Ke7 e6 Kf6 e7 Be6 e8R Ne7 Bf8
3r1q2/2Q1N1bN/3Q1BRn/nP1Rr1r1/3R2r1/3bP3/kqnrp1B1/Q1n3K1 b - - 0 1 illegal: No possible last move
1B3N2/4rqq1/1bq2NPk/1bQb3N/R2qr1R1/p3P3/1b2B3/bRnQ1K1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 a5 g4 f5 d4 Kf7 d5 Kg6 b6 h5 d6 c5 b7 c3 e3 a4 d7 c4 g5 h3 b5 c2 b6 c3 Nf3 h2 Ba6 h4 Ke2 h3 Qe1 a3 Nd4 f3+ Kf2 f4 Nd2 Nf6 Rg1 h1Q Ne6 h2 Ng7 Rh4 Ne4 Bc5 Bf1 Ra7 Rg3 Na6 b8R Nh5 b7 Nb4 Be2 Na2 Bd1 Bb6 Rg2 Ng3 Qf1 Qg1+ Ke1 h1Q Bb2 c1B Nd2 c2 Bd4 Bb2 Be2 c1B Ne4 f2+ Kd1 f3 Rb1 Ba1 Be5 Bcb2 Nh5 Nc1 Nef6 Re4 Ra8 Qh8 b8N Bb7 d8Q Bd5 Qf8 Re7 Qe1 f1B Ra4 f2 Nbd7 Qg7 Bb8 Qh4 Qg8 Nh1 Rg4 Qg2 Qc8 Qf3 Qc5 Qg2 Bf3 Bb5 Be2 f1Q Kd2 Qf4 Qg1 Qhf2 Qd1 Qf2f3 Ke1 Qe5 Ne8 Qff7 Nef6 Qd4 Nf8+ Kf5 g6 Qf3 Rf4+ Kg5 Rh4 Kh6 Rg4 Qg2 Bd3 Qc2 Be2 Qcc3+ Kf1 Qcc4 Qd6 Qc6 Qc5
1bb2n2/1R1N1r1r/1qN1QqP1/6rR/RP2n3/5nnk/1B3pr1/1Q1KQB1r b - - 0 1 illegal: No possible last move
4bnQn/nKb1rqNB/2nbq1P1/3Rp3/2b3r1/RN4bQ/4kBP1/3N1R2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 Ke2 Kd7 Ke3 Ke6 d4 Kf5 a4 b5 f4 h5 a5 c5 g6 c3 a6 h4 a7 h3 d5 c2 d6 h2 d7 b3 Ra2 b2 Ra3 c4 Kd4 b4 Kd5 c3 Qf3 e3 Ra5 e2 Rb5 e1B Qf2 b3 Rb7 Qb6 d8Q Bd7 Ne2 Nc6 Qc7 Re8 a8R Nf6+ Kc4 Ke4 f5 Nh7 Qc5 Bg3 Bg5 c1N f6 c2 f7 Nd3 Qb5 c1B Bh6 Nde5+ Kc3 Bcf4 Qc8 Ke3 Rg1 h1Q Nd2 b1B Qc4 b2 Ra3 Ba2 Nb3 e6 Rba7 Bd6 f8N Re7 R7a5 Nf7 Rd5 Be8 Qd3+ Kf2 Kc4 b1N Nc3 Qc7 Kb5 Qh3 Ka6 Qd7 Na4 Nc3 Nb2 Nb5 Nd1+ Ke1 Bg7 Nba7 Bd4 Bc7 Qf3 Bfd6 Kb7 e5 Ne6 Nf8 Ng7 Qhe6 Qg4 Rh5 Qh3 Nh8 Rh1 Rf5 Bc4+ Rf1 Bg1 Rf4 Qa8 Rg4 Qb8 Bb1 Qc8 Bd3 Bf2+ Ke2 Rf1 Qf5 Rda5 Qf4 Bg8 Qe6 Bh7 Bc4 Rd5 Qff5 Qh5 Qf3 Qf5 Qf4 Qf7 Qff6 Qg8 Qef7 Qf5 Q7e6 Qh5 Qff7 Qh3
n1Qr4/3bR1q1/Q1qBPk2/1r6/qBN5/q1n1RBp1/2NqPr2/1rN1b1K1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 Ke7 h4 g5 c4 b5 a4 f5 e6 d5 h5 g3+ Kg2 b3 a5 g4 h6 d3 h7 d4 a6 d2 a7 f4 c5 b4 c6 b2 c7 d3 Nc3 b1Q Nb5 b3 Rh2 f3+ Kh1 b2 Qc2 d1Q Nc3 d2 Qg6 f2 Na4 Qe4+ Nf3 b1R Rh3 g2+ Kh2 Qc6 Qe8+ Kf6 Qh5 Qd3 Qb5 Nd7 Ne1 Rb8 a8N Qa3 Qa6 Nb6 Nb2 Ne7 Nbd3 Ned5 Re3 Qda4 Nc2 d1Q Bd2 Bd7 c8Q Bb4 Nc1 Nc3 Be1 Rd8 h8B+ Ke7 Bg7 Qd2 Bf8+ Kf6 Bd6 Rb7 Nc7 Na8 Nb5 g1R Bh3 f1Q Bg2 Qf5 Be4 Rf1 Bf3 Rf2+ Kg1 g3 Ra2 Qh7 Rb2 Q3b3 Nba3 Qg7 Nc4 Qba3 Rb3 Ba5 Rb2 Rb8 Rb7 Bb4 Ra7 Rb5 Rc7 Be8 Re7 Bd7 Nb6 Ba5 Nc4 Nd5 Nb4 Qd4 Nc2 Bb4 Bc3 Ba5 Ba1 Be1 Rc3 Qd2 Re3+ Kg6 Bd4 Nc3 B4c5 Kf6 Bb4
KQ1b3b/n4bN1/2Nrpq1n/PB1n4/1n1R1rQ1/b6R/3k2PR/1q1Bb1B1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 Ke2 Kd7 Ke3 Kc6 a4 Kc5 f4 b5 f5 h5 g6 h4 g7 h3 f6 b3 d4+ Kb4 f7 c5 d5 c3 a5 c4 Kd4 c2 d6 c3 Kd5 e3 d7 e2 Rh2 e1B Nd2 b2 Ra3 b1N Qe2 Rh6 Qd3 Nc6 Ngf3 Rd6+ Ke4 Nh6 g8B Na7 Rh1 h2 Ne5 Bg7 f8R Bh8 Rg1 h1N Bb2 c1B Qe2 c2 Ndf3 Bg5 Bd4 c1B Bb3 e6 Nh4 Qf6 d8Q Bd7 Qg4 Be8 Bd1 Bf7 Rh3 Ba3 Qb8 Nc3+ Kd3 Nd5 Nf5 Bgh4 Rd8 Bg5 Ng7 Nf2+ Ke2 Bh4 Rgh1 Nd3 Bg1+ Kc3 R1h2 b4 Nc6 b3 Rd7 b2 Rd8 Ne7 Ke3 Nb4 Bb5 Ned5+ Ke4+ Kd2 Rd7 Qf3+ Kd4 b1Q Kc5 Qf6 Rd8 Nc3 Kb6 Ncd5+ Kb7 Bg5 Qc7 Rc8 Qb8 Bgh4 Ne5 Rc4 Ka8 Rf4 Nc6 Qfa1 Rg8 Bd8 Rf8 Bg6 Rf5 Qf6 Re5 Be8 Re4 Bf7 Rd4+
1rB2K2/4B1r1/2RP1b1p/NP2b1kb/Q4r2/4qnrb/qB3NnR/1rQ4Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 b4 c5 g4 f3 d4 c3 e3 a4 d5 c2 b6 c4 b5 h3 b7 f2 d6 h6 Kd5 h2 e4 a3 Be3 c1R Qe2 c3 Bh3 f1R Kc5 a2 Bf2 c2 e5+ Kg5 e6 f5 e7 f4 e8Q f3 Qe1 Qa5 Bd4 f2 Na3 Nd7+ Kd5 Rb8 Ke6 Be7 Kf7 Rb1 Nc4 c1Q Bb2 Qe3 Qc1 Bf6 Qe4 Ne5+ Kf8 Rh7 Qg2 Qa4 Na5 Ne7 Qd5 Qa3 Qb3 Nf3 Qa4 Kh4 g5+ Bg4+ Qc8 Nf5 g6 Re7 g7 Kg5 g8Q+ Rg7 Qd5 Bh5 Bg4 Be5 Qdd1 N5h4 Nh3+ Kf6 Qc1 Ng2 Qe8 Rg1 Bc8 f1B Nf2 Kg5 Qec6 Bf6 Be5 Rb4 Bb2 Rf4 Rb1 a1B Qce4 Ra8 b8B Qa2 Bc7 Rb8 Qec6 Qc4 Bd8 Qa2 Ba3 Be5 Be7 Bd3 Rb4 Bf5 Rc4 Bh3 Qb7 Kg6 Rc6 Kg5 Qcc4 Rb1 Qc1 Rb3 Bb2 Rd3 Re1 h1R Re2 Rhd1 Re1 Rb3 Rh1 Ra3 Rh2 Rc3 Qcc2 Rb1 Qc1 Nd2 Ng4 Qa7 Qb6 Rg3 Qbg1 Nf3 Qh1 Qe3 Nf2
3n1Bqq/R2bbN1r/2pPRk1q/Q1Nbr2P/B2Q2R1/1b6/2Q3q1/K1nq4 b - - 0 1 illegal: No possible last move
QN1qq2R/nnnQ1N1r/1p1b1Rb1/4P1nq/3Bn3/1Bk5/KN1q1P2/1r2B3 b - - 0 1 illegal: No proof kernel
rB3n2/2R2N2/PqN1kPp1/1r3r1r/4n2R/2bbnB2/Q1qn3K/QB1n2R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 h4 Kf7 a4 e5 c4 d5 f4 b5 Kf2 e4 Kg3 b3 h5 e3 a5 e2 f6 e1Q+ Kg2 b2 a6 d3 f5 g3 h6 d2 h7 b4 c5 b3 c6 g6 c7 d4 Bd3 Bg7 Ra5 Qe4+ Kh3 g2 Nc3 b1R Nf3 g1R Na2 b2 Rc5 Nd7 Nb4 Rf1 Rg1 Nf8 Kh2 Bd7 c8B Qb6 Rc3 Bb5 Bb7 Bc4 Qc2 d1N Bf4 Ne3 Bb8 Qec6 Be4 d3 Qg2 Qc8 Nc6 d2 Qh1 d1N Ng5+ Ke8 f7+ Kd7 Qg2 Nf6 Bd3 Ne4 f6 Rf5 Qc2 Bh6 Qb3 Bb5 Qa2 Bc4 Bc2 Bd3 Qa1 Rc1 Rc5 b1N Rc4 Nbd2 Bb1 Rc3 Qa2 Rb3 Rc1 Rg8 h8R Rbb5 Rh7 Rh8 Qa1 Bg7 Rh4 Rh5 Rc5 Bh6 Rc3 Ne6 f8Q Qcc7+ Kh1 Qc8 Qg8 Nf8 Nf7 Ke6 Kh2 Bg5 Na5 Qc4 Rc2 Qa2 Rc7 Qc2 Bc6 Nc5 Bh1 Nce4 Bf3 Bf4+ Rg3 Be5 Nc6 Bc3 Rg1 Nh7 Qd8 Nf8 Qe7+ Kd5 Qea3 Ke6 Q3a2+
r7/1BN1RNkp/2PrNn2/n3n1rq/Q2Qr2P/3bbB1R/3r3q/n1K2R2 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Ra1 f3 Bf4 exf4 Kd2 f2 c4 a5 e4 f5 g4 Kf7 b4 d5 h4 a4 e5 f3 e6+ Kg7 c5 d3 b6 d4 b7 f4 c6 a3 g5 a2 g6 Bc5 e7 Qc7 e8B Nd7 b8Q Ne5 b5 Ba6 b6 Nf6 b7 Rg8 Kc1 d2+ Kb2 d3 Nh3 Be3 Be2 f1Q Nc3 f2 Qa4 d1R Bf3 d2 Nb5 Qe2 Ng5 f1R Qa7 Rfe1 b8R Qf7 Rc1 a1N Q7d4 Qh2 Nc7 Bd3 Bd7 Qd5 Re8 Qc5 Bg2 f3 Bc8 f2 Bf3 f1N Bb7 Qd5 Re7+ Qf7 Bc8 Re2 Ba6 Rde1 Bb7 d1R+ Rc2 Nd2 Rf1 Ndb3 Nge6+ Kh6 g7 Qh5 Rd2 Na5 Rc2 Rg2 Rcf2 Rgd8 g8N+ Kg6 Rh1 Rd6 Nh6 Rg5 Nf7 Re2+ Qc2 Rdd2 Kc1 Ra7 Rff1 Ra8 Nf8+ Kg7 Qca4 Qg1 Rh3 Qh2 Qc3 Ba7 Qc5 Re4 Qd5 Bf2 Qdd4 Be3 Nfe6+
8/3b1Pk1/q1Qn3B/Qq2nrqB/3rNRNr/q2rbqPR/N2B2p1/K7 b - - 0 1 illegal: No possible last move
q1rn4/nnnP1Q2/1q1N1Br1/Q2bNQp1/1b6/2kPn2R/1R2BK2/R5rr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Ke7 e4 Kd6 a4 Kc5 h5 Kd4 a5 f5 d3 g5 h6 b5 e5 c5 e6 g3 a6 b3 a7 b2 e7 f3 e8R f4 h7 f2+ Ke2 f3+ Kd2 c4 d6 g2 d7 c3+ Kc2 b4 Bf4 Na6 Bc7 Ne7 Ra3 Rg8 Rh2 Bb7 Ba5 Nc7 Qe2 b3+ Kd1 c2+ Kd2 c1N Rh3 Nc6 Ra2 Rg6 Re5 Qe8 Nc3 b1Q Rf5 b2 Ra3 Qe4 Rc5 Rc8 a8Q Nd8 Qe1 Bd6 Be2 f1N+ Kd1 f2 Rb5 Ne3+ Kd2 f1R Qf2 Qc6 Qf5 Qa2 Bb4 Qb6 Ne4 Bd5 Ra6 Bf8 Be7 Qa4 Rb3 Qac6 Qa7 Qa8 Ra1 Re1 Qa5 Rf1 Rb5 Re1 Bg4 Rf1 Bf3 Nb3+ Ke2 b1N Bg4 Re1+ Kf2 Nc5 Be2 Ncb7 Rb3 Na3 Rb2 Nab5 h8Q+ Rg7 Qhh7 Rg6 Qhf7 Na7 Bb4 Bc5 Nd6 Rc1 Be1 Bb4 Bd2 Nc4 Bf4 Ne3 Nf3+ Kc3 Bh2 Rh1 Be5+ Qd4 Bh8 g1R Ne5 Qb6 Bf6
R1r2B2/1n1PQ1rQ/4BK2/b1nRP1r1/1r1pq3/5br1/1Rk1qnNQ/2N1n3 b - - 0 1 illegal: No proof kernel
3B3K/1P1Bqb1n/1N3QP1/N7/Qr2bN1p/bn2b2q/q3bB2/1qRk1r1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 d4 b7 a4 b5 h3 g6 h4 b6 a3 c3 f3 Qc2 f4 Ne2 a2 Bb2 f2 Rh2 f3 Qd1 d2 Na3+ Kd3 c4 Nc6+ Kf4 Ra4 b8B Nf6 Kg5 Nh7+ Kh5 Be6 c5 Qe7 b7 Na5 e5 Rb4 c6 Bf7 e6 Nb3 Rg2 h2 c7 h1B Rc1 a1B c8N Rg8 Qe1 d1Q Rg1 Qd2 Bh3 f1Q Ba7 f2 Nc4 Be4 Rh1 Qg2 Bc5 f1B Na5 Qe3 Bf5 Qeh3 Qf2 Kd2 Nb6 d3 Bf6 Bd4 Nf4+ Be2+ Qf3 Rg7 Kh6 Be3 Qf1 Qd6 Bd8 Qe7 Qg1 Qgh2 Qg5 Q2g2 Qf6 Qf2 Rcd1+ Kc2 Rde1 d2 Ra1 d1Q Rc1+ Kd2 Bd4 Qc2 Bg4 Qb1 Bf5 Qd7 e7 Qfg2 e8Q Qe7 Qa4 Qgh2 Bd7 Qf2 Rh2 Qfg2 Rc5 Kd1 Rh1+ Bf1 Bc3 Qga2 Be1 Be2 Rc2 Qe8 Rc8 Bfc5 Rc6 Qe7 Rc7 Rg8 Rc6 Rf8 Kg7 Bd6 Bf2+ Bf1 Ng2 Rc4 Bg3 Bg8+ Kh8 Ba3 Qe5 Rb4 Rc2 Rf3 Qf6 Bf7 Nf4 Rf2 Rc5 Rf3 Be1 Be2 Rc6 Rf1 Bf2 Qg3 Rc2 Qh3 Rc1+
n1RQB3/P2qNN2/1R2r3/1P1b1NBn/1n2p2n/k1n1r1b1/4b3/2Rq1bQK b - - 0 1 illegal: No proof kernel
kb2b1QK/2Qrq3/4qRB1/6r1/N2nQb2/Bn3Nrp/P1Pn4/1B1nb1R1 b - - 0 1 illegal: Other
3qB2B/1KB2R2/2r3Nr/3n1q2/b1Qr2k1/NP2bpP1/q5qr/1Qnn2NR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 a5 e4 h5 c4 f5 c5 d3 b6 a4 g3 a3 b3 d2 e5 a2 c6 f3 c7 h3 e6 h4 e7 f4 e8Q f2 b7 h2 Na3 h3 Qf7 Na6 b8B Bc5 Ne2 Nb4+ Ke4 d5+ Ke5 d4 Rb1 a1Q Bb2 d3 Nc3 Rh6 Qd7 Nf6 Qe6 Nfd5 Bg2 f1Q Rg1 h1R Qc1 d1N Ba7 h2 Ne2 d2 Bb8 Bd7 c8N Be3 Kd6 Qa2 Bc7 Nd3 Ne7 Rc8 Ng6 Kh5 Qe4 Kg4 Qcc4 Nc1 Bh8 Qf3 Rf1 Ba4+ Ke6 Qf2 Ng1 Qf3 Bd6 Rc5 Bc7 Rc6+ Ke5 Nf2 Ra1 d1R Qb1 Rd4 Bh3+ Kg5 Bd7 Nd1 Be8 Kg4 Ne2 Rg1 Rf2 Rg2 Ng1 h1Q Rf1 Rgh2 Rf2 Qhg2 Rf1 Rc5 Ke6 Qb8 Kd6 Rc6+ Kd7 Qb6 Kc8 Qa5 Kb7 Qe4 Bd6 Qd8 Bc7 Qf5 Re1 Bf2 Re7 f3 Rf7 Qb2 Ra2 Qa1 Re2 Be3 Re1 Qaa2 Ne2 Qdd7 Rh1 Qd8 Ng1
1rq5/2qR2B1/2r1NN1K/1kQ1P3/r2n1NRn/2P2B2/1nbpnbbQ/2r3Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 b4 a5 e4 d5 g4 Kd7 c3 h5 b6 Kc6 g5 d3 b7 a4 e5 a3 g6 a2 g7 h3 Rh2 f3 Ke3 d4+ Kf4 f2 Qf3+ Kb5 Qe3 h4 Nd2 Nc6 b8N Rh6 Bb2 Qc7 Kg5 f4 Nd7 f3 Qe1 Bc5 Nf6 Bf5 Qc1 Rb8 Nh5 Nge7 g8Q Ng6 Rg2 h2 Qe1 h1N Qg7 h3 Qe2 h2 Nf6 Ng3 Nh3 h1B Nde4 Nh4 Rd1 a1R Bc1 Ra4 Nf4 Bg6 Qc2 Ne2 Rg4 d2 Bg2 f1Q Ba3 f2 Bf3 Bb6 Nc5 d3 Nce6 Ncd4 Qf8 Qh3 Qc5+ Ka6 Qa2 f1R b5+ Ka5 Bc1 Bg2 Qb1 Ba7 b6+ Ka6 b7 Bh7 Re1 d1N Be3 Nb2 Rd1 Be4 Rd2 Rh1 Qg1 Bb6 Qh2 Rc1 Qg1 Bd5 Qh2 Bb3 Rd1 Bc2 Bd2 Rf8 b8Q Ba7 Qa8 Rb8 Qe4 Bb6 Qe3 Ba7 Qeg1 Bb6 Qa3 Kb5 Be3 Nb3 Bc5 Nbd4 Bf8 Ba7 Bg7 d2 Rf1 Ndf5 Qd6 Bf2 Qe7 Nfd4 Qf8 Rh8 Qa3 Rhf8 Kh6 Rfc8 Qc5+ Ka6 Rg5 Rb6 Nd8 Qa7 Nd5 Rc7 Bh5 Rbb7 Nh7 Bg3 Rf7 Qc8 Ne6 Bf2 Bf3 Rc6 Rg4 Rb8 Nhf6 Qad7 Ndf4 Qdc7 Qd5 Kb6 Rd7 Ka6 Qd6 Kb5 Qc5+
n6K/nq3QRb/Br6/2n1prQ1/Qr2P1P1/rnbN2kq/R1N2N2/2q3B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 g5 d4 gxf4 Qd2 cxd4 Qc3 h4 Qg3 hxg3 Kd2 d5 Kd3 Kd7 e4 Kd6 c4 Ke5 b4 f5 h4 a5 c5 a4 h5 g2 h6 f3 b6 a3 b7 a2 b5 f2 h7 f4 c6 f3 c7 Na6 b8Q Nc5+ Kd2 Kf4 b6 e5 b7 d3 Kc3+ d2 Bc4 f1Q Rh2 d4+ Kb4 f2 Kb5 d3 Kc6 Qd5+ Kb5 Ne7 Qa7 Bf5 b8Q Nc6 c8Q Kg3 Qbb7 d1Q Qd8 d2 Nh3 g1R Qa4 Na7+ Kb6 Qb3+ Kc7 d1N Na3 Nc3 Be3 Qc1 Nc2 f1R Qg5 Rg2 Rb1 a1N Bg1 Rgf2 Ba6 Ncb5+ Kb6 Qf3 Qf7 Nc7 Rb3 Rd2 Nf2 Rd4 Rc3 Rg8 h8N Bh7 Ng6 Nab3 Nf4 Bh6 N4d3 Rg6+ Qgf6 Bd2 Rc4 N5e6 Qg5 Bc3 Rc5 Rh6 Rc6 Nec5 Rg6 N7e6 Rg8 Qg2 Rg7 Qh3 Nd1 Rf5 N1f2 Nf8+ Kc7 Rb4 Bb7 Nfd7 Ba6 Nc8 Kd8 Rhb6 Ke8 Qb7 Bc4 Ra5 Ba6 Na7 Ke7 Ne6 Ke8 Nc7+ Ke7 Ndc5 Kf8 Bg6 Kg8 Bh7+ Kh8 Na8 Qad7 Ra3 Qa4 Qe3 Nd1 Qf4 Rd2 Qe3 N1f2 Qf4 Rd1 Qe3 Ra1 Qc1 Ra2
b4k1Q/r3R2q/1b1N2Bb/b2Prq2/2KBN2n/1P1R1q1p/1Q1N2r1/1q2B1n1 b - - 0 1 illegal: No possible last move
3NR1r1/RQqq2n1/Q7/n1rpB3/3qP2P/K2kr2B/3NNbb1/1qBb1b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 Ke4 Kc2 f5 Kb3 g5 b6 a5 b5 d5 c5 g3 e3 g4 c6 a4+ Ka2 d3 b7 a3 c7 f3 b6 f4 Nh3 d2 Bc4 f2 Bb5 f1B Be8 g2 Qf3+ Kd3 Rh2 g1R Qd1 f3 e4 f2 Bg6 g3 Qh5 d1B Rh1 g2 Bf4 Nc6 b8Q Nge7 b7 Ra5 Qg5 Rg8 Nd2 Qd7 Qf6 Rc5 Bf5 Na5 Rh2 Rh1 Ng1 Bg7 Qb6 Bd4 Bh3 Nf5 Ne2 g1Q Rg2 Ng7 Q6a7 Qh2 Qa6+ Kc2 Qba7 Rg1 Rg5 Rg3 b8B Re3 Re5 Qg3 Q6b7 Kd3 Re8 Bg2 Bg5 f1Q Bh6 Qf6 Qaa8 Qb6 Qaa6+ Qbb5 Qbc6 Bb7 c8N Qgc7 Nd6 Bc8 Nf7 Bb7 Qa7 Ba6 Qcb7 Qa4 Nd8 Bc4+ Kb1 a2+ Kc1 Qb3 Qaa6 Qba4 Nc3 Bb5 Kb2 Qc2+ Ka3 Bc4 Rc1 Qb1 Ne2 Bb5 Rc2 a1Q+ Ra2 Be5 Nf3 Bg3 Nd2 Bf2 Bf4 Qd4 Be5 Qda1 Bb2 Bc4 Bc1 Qd4 Ra1 Qcc8 Bh2 Qcc7 Be5 Qa2+ Kb4 Nb3 Ng3 Qb1 Qac6 Kc2 Ra7 Bcf1+ Ka3 Kd3 Ne2 Na5 Qca6+
3N1n2/2b2k2/Nr6/3pbP2/Q3qB1n/qq1b2bP/BrNqRB2/2RQn1K1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 b4 e5 f4 a5 Kf2 g5 c4 e3+ Kg2 e2 h3 e1Q c5 e4 f5 e3 b6 d3 b5 a4 c6 e2 b7 g3 c7 g4 b6 a3 Ra2 d2 Rh2 Bg7 Rh1 Ra6 Qc2 d1Q Qb3 Be5 Nf3 Ne7 Ng5 Ng6 Qc4 Nh4+ Kg1 g2 Rb2 a2 Ne6 a1Q Qa4 Kf7 Bf4 d5 Rb4 Qg5 Rh2 Nd7 Bg3 Qgd2 b8N Rd8 b7 Nf8 Rb3 Bd7 c8Q Bb5 Nc3 Qab2 Ne4 Qa3 Qc1 Rc6 Na6 Rb8 Rb1 Rc2 Nd4 Rb2 Qc5 Q1c2 Qc8 Qed1 Nec5 e1N Nce6 Qe4 Bd3 Qdb3 Rc1 Bc4 Bb1 Bd3 Qc2 Bc7 Ba2 Be5 Ne2 Bc7 Kf2 g1B+ Kf1 Ba7 Qd1 Bd4 Rf2 Bde5 Kg1 Nd7 Bf4 Nf8 Be3 Bg3 N2d4 Bge5 Nc2 g3 Re2 g2 Kf2 g1B+ Kf1 Kg8 Nd8 Bgh2 Bf2 Bhg3 Kg1 Ra8 Nab4 Ra5 Na6 Rb5 Be3 Rb4 Bf4 Rb5 b8B Rb7 Ba7 Kg7 Bae3 Rb6 Bf2 Kf6 Nb7 Kf7 Nd8+
B3bk1N/3Rr3/n1brr1rB/BQP2P2/2n2b2/2pR3q/R1b1Q2q/Kn3N2 b - - 0 1 illegal: No proof kernel
2KNQ1bQ/Q2n4/rbR1n2n/np2Bq2/3R2NP/q3Rb1r/BqP5/q3k3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 f4 e5 a4 d3 a5 g3 a6 b3 h3 e4 a7 g4 Ra2 b2 Qe2 g2 Qe1 d2 Rh2 d1N Qb4 g3 Rh1 e3 Bd3 e2 Qe1 Ne3+ Kd4 d5 Bd2 Be6 Na3 b1Q Nc4 Qe7 Bc3 Nd7 Ne5 Nc4 Ra4 Nh6 Nf7 Na5 Nf3 g1N Bc4 g2 Nh2 Qa3 Ba2 Qbb2 Nd8 Bg8 Rc4 Bd6 Rc6 Rh7 Qf2 e1Q Qe2 Qf1 Qe8 Rf7 h4 Nh3 Rg1 Ng5 Rh1 Qf3 Re1 g1Q+ Re3 Qga1 Ng4+ Kg7 f6+ Kg6 f5+ Kh5 Qe7 Bc7 Qe6 Rf8 f7 Qh3 f6 Bb6+ Rc5 Re8 f8R Qf3 f7 Qf5 Qf6 Re7 Re8 Re5 Rd3 Re3 f8Q Rg3 Rde3 Rh3 R8e4 Ne6+ Kd3 d4 Qh8 Rc8 a8Q Rc6 Qa7 Rd6 Kd2 d3 Be5 Rc6 Rd4 Rd6 Rg3 Rc6 Ke3 d2+ Rc3 d1B Qe8+ Qf7 Ke4 Be2 Qe7 Qf5+ Kd5 Bd1 Rge3 Bf3+ Ree4 Rc8 Rc6 Ra8 Qc7 Ra6 Qa7 Qf6 Qf8 Qf5 Qe8+ Qg6 Nf2 Qf7 Qe7 Qf5 Qf8 Qa4 Kd6 Qab3 Re3 Qbd3 Ne4 Kg4 Qe8 Qdb3 Bg7 Qd3 Nf2+ Kg3 Ng4 Kg2 Bf6 Kf1 Be5 Ndc5 Ke7 Qda3 Rb3 Ke1 Rbd3 Ncb3+ Kd7 Nbc5+ Kc8 Nd7 Re3+
Rnk1b3/6BK/3r2PP/RR2N1b1/2Bq1pn1/nN1n1b2/q3rQ1Q/br2B3 b - - 0 1 illegal: No proof kernel
n4Rk1/4K3/qQB1bP1R/QP2pq2/1NN1nb2/qn1r1q1B/r3rnN1/2B5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 h5 g4 a5 b4 e5 c4 d5 c5 e3+ Kd3 h3 c6 a4 b6 e2 b5 e1R c7 h2 b7 h4 f5 h3 g5 a3 Nd2 a2 Ndf3 Be6 c8N Qa5 Qe2 Qa3+ Kd2 d3 Ke3 d4+ Ke4 d2 Bg2 d1N Nb6 d3 Qe3 d2 Nc4 Na6 b8Q Bh6 Qb6 Re2 Ne1 Nc7 g6+ Kg7 Nd3 Bf4 Rb1 a1N Qa5 Nb3 Nb4 Rh7 Nf3 Nf6+ Kd3 Kh8 g7+ Kg8 Nh4 Ne4 Qeb6 Rh5 Rf1 h1Q Ra1 h2 Bh3 Qg1 Ng2 Qf2 f6 Ra6 Rh1 Na8 Ra2 Bg5 Ra1 Qf5 Ra2 Bf4 Ra1 Kf7 g8B+ Kf8 Bf7 Rh6 Be8 Kg8 Bc6 Ndf2+ Kc2 Rh7 Ra2 Rd7 Ra1 Ng5+ Kc3 d1Q Ra2 Qg1 Rd2 Rd8 Rd7 Qd1 Rf7 Qd6 Rd1 h1Q Rd4 Be3 Rh4 Bf4 Rh6 Bd7 Nb2 Nge4+ Kc4 Ra7 Nh4 Qf3 Ng2 Qb8 Kd5 Qc8 Nc4 Qa6 Qb8 Nec5+ Kd6 Nce4+ Ke7 Be6+ Qbc7 Rdd2 Qb7 Ra2 Qbc7 Rb7 Qb6 Rb8 Qa5 Rd8 Qcb6 Rd3 Rf8#
1KB2Nr1/nn2knb1/2b1p3/b1q3Q1/rR5P/1NbRB3/q1NP2Br/n2Q4 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 g5 Ke3 c5 f4 b5 h4 e6 a4 b3 a5 b2 f5 g3 f6 g4 Kf4 g2 Ke5 e3 a6 g3 a7 b4 d6 c4 Nh3 g1B Nf2 g2 Bd3 c3 Ra5 e2 Ra3 e1N Nh3 c2 Be4 b3 Nf2 Qb6 Nd3 Qc5+ Bd5 Bd7 Ra1 Nc6+ Ke4 Nh6 Ra6 Rg8 Ra3 Bd4 f7+ Kd8 Rf1 g1B Rf4 Bfg7 f8N Bc3 Rg4 Na5 Bb7 Nf7 Bc8 Nb7 Kf4 Bb5 d7 Ke7 Ke4 B1d4 Kf4 Ba5 Ke4 Rb8 a8B Bdc3 Rf4 Nf3 Rg4 N3e5 Rf4 Qb6 Nc5 Nc6 Rg4 Na7 Rf4 Kd6 d8Q+ Bd7 Qg5 Bc6+ Kd3 Qc7 Rb4 Qb6 Kc4 Qc7 Raa4 Qe7 Na3 b1Q Bb2 c1N Nc2 Qa2 Ba1 b2+ Nb3 b1R Ra3 Qc7 Qgg4 Ke7 Qg5+ Bcf6 Bd4 Qe5 Qgg1 Qh5 Be3 Bc3 Bd7 Rd8 Bc8 Ra1 Qg6 Rd5 Qg3 Rf5 Qe5 Rf2 Qd5 Nbd8 Kc5 Rh2 Qe5 Bb5 Bg2 Bc6 Rd4 Qg5 Rd3 Qf5 Ra4 Qf2 Rb4 Nb7+ Kc4 Qb1 Qg3 Ra4 Qe5 Qa2 Qd5 Nbd6+ Kc5 Qf5 Qe5 Qg5 Qf5 Nb7+ Kc4 Qb2 Nbd4 Nb3 Qd5 Na1 Nb3 Nbd8 Kc5 Qa2 Qe5 Bc7 Qf5 Bc7e5 Kb6 Nb7 Qfg4 Bed4+ Kc7 Bb6+ Kb8 Ba5 Qf4 Qc5 Qg5+
1n1B3Q/2Kbb3/2PNqR1Q/n1B5/5R1n/qQ1BPr2/4p1q1/1n1rkrrN b - - 0 1 illegal: No proof kernel
R5k1/1NRN2q1/1NP2P1Q/r1pB1br1/1r1b1qQK/2nb3n/4qr2/2BB1b2 b - - 0 1 illegal: No possible last move
2KN1Bq1/5Nq1/1Rpq1R1r/2B1q2n/1Q3brP/n2B4/b1P1R3/Qnkb3b b - - 0 1 legal: proof: f4 b5 e4 h5 g4 hxg4 a4 d6 e5 dxe5 axb5 exf4 Ke2 f3+ Kf2 Qd4+ Ke1 Qd8 h4 Kd7 Kf2 Kd6 Ke3 Ke5 b4 a5 d3 g5 b6 f5 b7 f4+ Kd2 Kd4 b5 e5 b6 c6 Ra3 e4 Qe1 e3+ Kd1 a4 Nh3 f2 Ke2 g3 Kf3 e2 Rb3 g4+ Kg2 a3 Nc3 a2 Qd1 a1N Bd2 e1Q Rb2 Nd7 b8B Nb3 b7 Ne5 Qc1 Bh6 Na2 Qd6 Nc3 Nf6 Ng5 Be6 Nf7 Nh5 Qa1 Nc4 Rh2 Ra4 Nd5 Qee5 Nc7 Na3 Be3+ Kc3 d4 Nd2 d5 Ndb1 Bea7 Kd2 Bc5 Kc1 Bd3 Rd4 Rb6 f1B+ Kg1 g2 Kf2 g3+ Kf3 g1Q Re2 g2 Ba7 Qd7 d6 Ba2 b8Q Qh2 Qf8 g1Q Ne6 Bg2+ Kg4 Bg5 Bb8 Rh6 Bc7 Qg7 Kf5 f3 Bb8 Qc7 d7 f2 d8R f1B Rd6 Bh1 Ned8 Bf4 Rf6 Qd6 Qe7 Bfg2 Qe4 Ra4 Qb4 Bf3 Bc7 Qg8 Bb8 Q1g7 Bc7 Qd4 B7d6 Qhg3 Bf8 Qd6 Re5 Bd1 Re2 Qe1 Bc4 Qb8 Ke6 Qd2 Ke7 Qdd6+ Ke8 Qe5+ Kd7 Qbd6+ Kc8 Bg3 Qbc3 Bh2 Bd3 Rg4 Qa5 Bf4 Qb4
1q6/1n1Nn1r1/1P5q/RQn1P2b/2QnbB1k/1BK1R2r/qB1Qp3/1b2b1N1 b - - 0 1 illegal: No proof kernel
3N2r1/K1Nn2n1/1P2nNPQ/bb1q4/Bp1bqBb1/kq1r1q2/2Q4R/2R3Q1 b - - 0 1 illegal: No proof kernel
N1b1k1n1/2b1R3/P1n2Rq1/3NQrnB/r1r1b1K1/2Q2n2/p2R1P2/B2rQq2 b - - 0 1 illegal: No possible last move, all moves rejected
1Q3K2/q7/Pbn3N1/1BrQ1b1R/bp1r1rQ1/qnB1q1r1/3R1P1B/Nb4k1 b - - 0 1 illegal: No possible last move
q1bQ2N1/4rBB1/p1RP1K2/4r2b/P1Nq4/Q2Q2nn/bb2nR1q/q4k1N b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 Ke5 f5 g4 h5 e4 f3 d4 f4 d5 f2 c6 h3 a3 h4 g5 f3 c7 a6 g6 h2 g7 h3 Bd3 f1N Nd2 f2 Ngf3 Ra7 Ra2 Rh5+ Ng5 Nh6 g8N Bg7+ Nf6 Ng4+ Kf4 Nc6 e5 Nd4 e6 Ng3 e7 f1B Ngh7 Be2 Bg6 c3 Rg1 h1Q Bf5 c2 Bg6 h2 Ng5 Nf2 Ke5 Nh3 Bb2 c1Q Re1 Qa1 e8Q+ Kc5 a4 b5 Qe6 b4 Bf7 b3 Nc4 Rb7 Bc3 b2 Qd3 b1B Rc1 Qd1 d6 h1Q Qg4 Qh2 Qgf3 Qh8 Rb2 Ba2 Qfe3 Beg4 Rg2 Qf3 Bb2 Ra7 Rc3 Qa8 Qf3 Nde2 Rc2 Bcd7 c8Q+ Rc7 Qd8 Bc8 Na3+ Kb4 Rc6 Ra7 Nc4 Rc7 Kd5 Re7 Ng8 Be5 Ne4 Rg5 Qc2 Bh5 Nf2 Qf6 Nh1 Qg7 Bc1 Bb2+ Qcf5 Qf6 Bf4 Qc3 Be5 Kb3 Qg6 Rf5 Qe3 Kc2 Qh7 Qb4 Qa3 Kd1 Qg6 Ke1 Qh7 Rf2 Qhd3 Kf1 Bg7 Rf5+ Be5 Rd7 Ke6 Rg5 Bg7 Re5+ Kf6 Rde7 Qe3 Qc5 Qed3 Qd4 Rf2+
NbnRn2N/N3r2p/2q2Q1n/5Br1/r1P3q1/1R1Q1q2/bk4BP/1q1R1n1K b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Ra1 f3 Bf4 exf4 Kd2 f2 g4 Ke7 b4 Kf6 e4 Ke5 Ke2 a5 Kf3 d5 Kg2 f5 b6 d3 b5 Kd4 b7 d2 e5 a4 b6 a3 e6 f3+ Kg3 f4+ Kh3 a2 g5 Nd7 b8R Qe8 e7 Nh6 b7 Ra5 g6 Nf6+ Kh4 Qc6 e8B Bd6 g7 Be6 Ba6 f1N g8Q f2 Qg6 f3 Bd7 Ng3 Na3 Kc3 Bf1 d4 Rc1 a1R Ne2+ Kb2 Nf4 d3 Bg2 f1Q Rd8 f2 b8N Ngf5+ Kh3 Ba2 c4 Re8 Rc3 Re7 Na6 Bb8 Nc7 Ne8 Na8 Nfd6 Nb5 Nc8 Na7 Rg5 Bf5 Qe1 Qe2 f1N Qf6 Qb1 Qf3 d1Q Ng6 d2 Qd3 Qb3 Nh8 d1Q Rg1 Ng3 Re1 Qe2 Rd1 Qa3 Bd5 Qg4+ Kg2 Nf1+ Kh1 Qb3 Rdc1 Qbd1 Bg2 Qdf3 Re1 Bb3 Rec1 Ra4 Rd1 Ba2 Rb3#
N3nN1K/bkQ2B1p/Nq5P/1r3Qr1/1P2rn2/3Rrq2/4b3/BbbqB1R1 b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 Bc4 dxe4 Bd3 c5 Bf1 cxb4 Ne2 b3 Ng1 b4 axb4 Be6 Be2 Bd7 Bf1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 e5+ Kg3 a5 f4 g5 d4 e3 h4 b2 c4 e2 h5 e1R c5 e4 f5 a4 f6 a3 f7 e3 d5+ Kb7 d6 a2 d7 e2 Qc2 Qf6 d8B Ne7 Rh3 Rg8 Nc3 b1B Nb5 Ng6 Qf5 Na6 Bb2 Bh6 f8N Nf4 Nf3 Rb8 Nfd4 Nc7 Nb3 Ne8 Nc7 Be6 Na8 Bc4 Bc3 Qb6 Bdf6 Rg7 Kf2 g3+ Kf3 g2 Kg4 g1B Rd3 Re7 Bfd4 Re4 Bg2 Be3 Bd2 Rg1 Be1 Bc1 Bf6 Bg7 Bb2 Bd4 h6 Bde3 Bg3 e1R c6+ Ka6 c7 Kb7 Bf1 Qc6 Bg2 Ba7 Bf2 R1e3 Be1 Rd8 Bbc3 Rd5 Bf6 Qb6 Bb2 Rb5 Nc5+ Kc6 Na6 Kb7 Qd5+ Qc6 Kf5 g4 Bf3 g3 Bh5 g2 Bf7 Bd2 Kg5 Bc1 Qf5 Qd5 Rc3 Be2 Rd3 Bc2 Rb1 a1Q Bbc3 Qa5 Bb2 Qb6 Ba1 Nd6 Kf6 Qdc6 Kg7 Ne8+ Kh8 Qd5 Rbb3 Bb1 Qf6 Qh5 Qf5 Qf3 Rd1 Rf1 Rbd3 g1Q Bh4 Rf2 Re1 Qgh1 Rg1 Rg2 Be1 Rg5 Rg2 Qhf1 Rg1 Bb8 Bec3 Qd1 c8Q+ Ka7 Qc4 Kb7 Be1 Ba7 Qc7+
2n4K/2B3P1/qNnb2bn/2n1RPq1/Qqb2QRR/5b2/Bp3N1r/4rkB1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Ke5 b5 d4+ e3 g4 h5 a4 c5 f3 b3 d6 h3 d5 Kh4 a5 Kg3 f4 Kf2 d7 b2 g5 c4 d6 h2 a6 h4 g6 e2 a7 e1Q+ Kf5 e5 g7 b4 Kg6 e4 Bd2 b3 Bc1 h3 Qc2+ Qe2 Nf3 c3 Kf7 e3 Ra5 Ne7 Rb5 Nbc6 Qh7 c2 Qh5 Ba6 Qe5 Nc8 Nfd2 Qg5 Rg1 h1B d8R h2 d7 Bd6 Nc4 Bf3 Nc3 h1N Rg4 b1B Nb6 Rh2 Kg8 b2 Nd1+ Ke1 Rd5 Ng3 Nf2 Bc4 Qf6 Rb8 a8Q Nf5 Qa4 Nh6+ Kh8 Qd3 Rb5 e2 Be3 c1N Re5 Nb3 Rf8 Nc5 d8B Qa3 Bc7 Bg6 Rfe8 Qd3 Re4 Qa3 R8e5 Qb4 f5 Qa5 Rh4 Qa6 Reg4 Rb7 Bg2 Rb8 Bh1 Kf1 Qf7 e1Q Qe6 Bce2 Qec4 Qb4 Qf4 Bc4 Bd4 Bd1 Be4 Bf3 Bb1 Ra8 Ba2 Ra7 Bb8 Re7 Bc7 Re6 Ne4 Re7 Bg1 Re6 Nf2 Re7 Rd5 Re1 Re5
2b2K2/2nRNnpq/kqB3b1/1Qr1Q1Qn/P2Bb3/1r2RPN1/1br1r1R1/8 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 e5 a4 c5 d4 Kc7 h4 Kb6 f3 g3 d6 b3 d5 b2 h5 g2 d7 c4 h6 c3 h7 c2 d6 Na6 Nd2 b1B Ba3 c1R Rh5 Qh4 d8Q+ Nc7 d7 Ra5 Nc4+ Ka6 Be7 b5 Qb3 b4 Bd6 Rc2 Rg5 Rc5 Qb2 b3 Ne2 Nf6 Ra3 Nh5 Nb6 g1N Nd5 Nh3 Qd4 b2 Rg2 Ng5 Qb4 Nf7 Qg5 Be7 d8Q Bf6 Qe8 Qh3 Bf8 Qe6 Ne7 Qb6 Rd3 Rg8 Rd7 Rh8 Kf2 Rg8 h8R e3+ Ke1 e4 Ng3+ e2 Kf2 Be5 Ke3 Bc3 Rh6 Rh8 Re6 Bf6 Rd3 e1Q+ Be2 Qh1 Rd7+ Kb7 Re5 Qh2 Kd4 e3 Bc4 e2 Bd5+ Ka6 Bc6 Qh1 Ke4 e1R+ Kf5 Ree2 Kg6 Qh3 Re3 Qh2 Nef5 Qh3 Qe5 Rg8 Be7 Rd8 Rd1 Rd3 Bd6 Qh1 Ne7 Rb3 Kh7 Qh3 Kg8 Qf5 Kf8 Qh7 Red3 Ba2 Re3 b1B Qef4 Bb2 Be5 Rc1 Bd4 Be4 Qfe5 R1c2 Bc3 Bg6 Rd7 Bb1 Bd4 R2c3 Nd5 Bbe4 Ne7 Rcc2 Qb5+
r3R3/k2rRBpb/2qnBb1Q/3n1PBN/q2QqP2/3Q4/nr1rnK2/6N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 a4 b5 c4 d5 c5 Kd7 c6+ Kc7 a5 e5 a6 Kb6 c7 g3 h3 d3 f3 b3 a7 d4 Ra2 b2 Ne2 g2 Ra3 g1N Bh6 b4 Nbc3 b1R Bg2 b3 Bf1 b2 Bc1 e4 Qd2 e3 Ra2 Qd6 Qd1 Nh6 Ra4 Na6 Rh2 Nf7 Nf4 e2 Na2 d2+ Kf2 d3 Re4 Be7 Nh5 Bf6 Re8 Qc6 Nc3 Nb4 h4 Be6 c8Q Nd6 Qd7 Bg8 Re7 e1N Ne2 Nd5 Rh1 Rd8 a8B Bh7 Qa4 d1Q Qd4+ Ka6 Bg5 d2 f4 Qda4 Rh3 d1R Rhe3 Nc2 Bg2 Nc7 Bd5 Nb4 Bf7 Ncd5 Re8 Rd2 R3e7 Na2 Qd3+ Nb5 Bb7+ Ka7 Bc8+ Qc7 Qd6 Rd7 Qb4 Nd6 Qbc4 Rd8 Bce6 Rd7 Qcd4+ Qb6 Ng3 Rg8 h5 Qc5 h6 Rf8 Rb8 Rd8 Nh5 Rg8 Rb6 Ra8 Re8 Qcc6 Re7 Rc1 Rb8+ Rc5 Rbe8 b1Q Qh3 Qe4 Qhd3 Bg8 h7 Rb2 h8Q Bh7 Qb4 Rcc2 Qbc4 Rd2 Qb4 Bg8 Qh6 Bh7 Kg3 Nf3 Ng1 Nd4 Qbc4 Ne2+ Kf2 Nb6 Qcc3 Nd5 Qcd4+
N2NK1b1/rq1Q1npB/R2P4/3kB1nb/r4q2/q1R3Pq/3bR3/1Q1B1br1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 f5 b5 axb5 h4 g3 h3 f6 exf6 Qb3 f5 Qf3 f4 Qg2 hxg2 Kf2 Kd7 Kf3 Ke6 Ke4 a5 h4 c5 d4 a4 b4 a3 d5+ Kd6 b6 c3 h5 c2 b5 a2 b7 f6 h6 f3 b6 c4 h7 c3 Nh3 g1R Nd2 f2 Bb2 c1Q Ng5 c2 Nc4+ Kc5 Rh2 f5+ Ke5 f4 e4 f3 Be2 f1B Nf7 f2 Bd1 Qh4 Nd8 Nd7+ Ke6 Be2 Kf7 f1B b8Q Qb1 b7 c1Q e5 Ndf6 e6 Qh3 e7 Qf4 e8B Ra4 Nb6 Ne4+ Bf6 Bcg4 Qa7 Bc4 b8Q Qb4 Bc6 Ng5+ Ke8 Nh6 Qd7 Nhf7 Na8 Qb7 Be5 Bh5 Re2 Rg8 Rc1 a1Q h8R Qa3 Rh6 Ra7 Bb5 Rh8 Ra6 Rh6 Ra5 Rha6 Rc3 Be7 d6 Kd5 Ra4 Ba2 Bd3 Bc4 Rb4 Ra4 Rb6 Ba2 Ra6 Bb3 Nc6 Bd8 Bh7 Ba5 Nd8 Ba2 Rce3 Bd2 Rc3 Bc4 Bhc2 Bd3 Bb1 Bh7 Bf5 Bg8 Bh7 Qc8 Qb4 Qb7 Qb1
NRqQ2b1/1b3Prq/2k1BP1n/N4q2/1R1r1b2/K1Qr2b1/pN1r3B/3B1n2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Kd2 a5 c4 d5 Kc2 Kd7 g4 e5 f4 h5 b4 a3 Kb3 h3 f6 a4+ Ka2 h4 f7 d3 c5 d4 b5 h2 g5 h3 g6 e4 b6 e3 b7 d2 f5 e2 Bb2 e1B Nf3 d3 Bd4 Rh7 Ng1 Kc6 Be2 Bd6 Bf1 Be6+ Qb3 d1R Be3 d2 Bf4 Bg3 Ne2 Nd7 b8Q Qc8 Nec3 Nh6 Be2 Ne5 Re1 h1B Bf3+ Kd7 Re4 h2 Rb4 Nc4 Qc2 Rg7 c6+ Kd8 c7+ Kd7 Bh5 Bb7 Be2 h1Q Qc1 Qd8 c8N Kc6 Nb6 Qc8 Qb2 Ra7 Na8 Ne3+ Qb3 Nf1 Bg4 Be1 Bh2 Bf4 Bh5 Beg3 Bg4 Re1 Nd1 Re2 Nb2 d1R Nd2 Re4 Bh5 Rd4 Ndc4 R1d2 Qc3 Ra5 Re1 Rad5 Bd1 R4d3 Re5 R5d4 Reb5 Qd5 Qa7 Qc5 Qa5 Q5f8 Qd8 Qg8 Ka1 Qh7 Kb1 a2+ Kc1 Ba6 Rb8 a3 Be2 Rg8 Bd1 Rf3 Na4 a1Q+ Rb1 a2 f6 Bb7 g7 Bd7 Qb2 Qd3 Qc3 Re8 g8B Bf5 Bh7 Rg8 Bg6 Rg7 Bh7 Be4 Bf5 Re3 Be6 Bh7 Qc2 Qac3 Rb4 Qb3 Qb2 Bg8 Qc3 Qg6 Qc2 Qbd3 Kb2 Rde2 Qd2 Qh7 Qc2 Qdf5 Qd2 Re1 Qc3 Red3 Ka3 Re2 Nab2 Red2 Na5#
Q2Rb2b/4PN2/n3qn2/1R2R2P/Q1q2pB1/n1q2rB1/b2b2K1/1k1q1NBr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 c5 g5 b6 a5 b7 a4 b5 f3 c6 f4 c7 a3 b6 g3+ Ke1 f2+ Ke2 g4 Bd2 g2 Qc1 g3 Kf3 d3 Bb4 Kd4 e5 a2 e6 d2 e7 d1B+ Ne2+ Kd3 Qa3+ Kc2 Qa7 g1B Bc5 d4 Bd6 g2 Qa6 d3 Qb5 d2 Bc5 Qd6 Nc3 Bg7 Rb1 a1N Ne4 Qe6 Nd6 Nf6 Nf7 Na6 b8R Bd7 c8Q Be8 b7 Rh7 Qa5 Bh8 Rb5 Ra7 Bb4+ Kb1 Qa4 Bb3 Ng3 d1Q+ Be2 Nc2 Nf1 Na3 Be1 Qd2 Re5 Ba2 Ra8 Qd4 b8B Rb7 Ba7 Qc3+ Be3 Rb3 Rb8 Rh6 Rbb5 Rh7 Qa8 Rh5 Ng3 f1Q+ Bf2 Qd1 Nf1 Qdd4 Be1 Qdc4 Bg3 Bf2 Rh2 g1Q Bd1 Be1 Rd2 Rh7 Rd8 Bd2 Be2 Qh1+ Kf2 Rh5 Bg4 Qf3+ Kg1 Qd1 Kg2 Qb2 Bg1 Rf3 Ra5 Qbc3 Rac5 Rg5 h5 Rg7 Bh3 Rg4 Rcd5 Rh4 Bg4 Rh1 Rb5+
1brn4/R1q1PB1N/3p1q1R/1k4qn/2B3NB/2nRnrQQ/P6q/K1b4b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 g5 h4 b5 e4 f5 c4 b3 e5 b4 h6 f3 c5 d3 e6 f4 e7 b2 c6 d6 h5 b3 Kc3 g4 h7 d2 c7 Kd7 h6 Kc6 Qe2 d1Q Rh5 f2 Re5 g3 Re4 g2 Nh3 g1B Qd3 f3 Be3 Qe2 Bg5 Nf6 Bg2 f1Q Re6 Bb7 c8B Qc7 Re5 Ra3 Bh4 Nh5 Ra5 Ba7 Nd2 b1Q Ne4 f2 Be6 b2+ Bb3 Qg1 Nhg5 f1N Qg3 Ne3 Bf1 Qeh2 Bc4 Qbf1 Nf2 b1N+ Kb2 Nc3 Rd1 Bg7 Ka1 Rc8 Ng4 Qf6 h8R Kb6 h7 Bh6 Bb5 Bh1 Bf7 Nc6 Bbc4 Bb8 Ra7 Qgg2 Rd3 Nd8 Rg8 Qd5 h8Q Qde5 Nh7 Qeg5 Bce6 Kb5 Rg6 Ra4 Bb3 Rf4 Bbd5 Rf3 Bde6 Qgf5 Bb3 Bf4 Rh6 Q5g5 Bbd5 Nf1 Bde6 Bc1 Bc4+ Kc5 Qe8 Ne3 Qd7 Kb6 Nf2 Kc5 Qdh3 Kc6 Ng4 Kc5 Bcd5 Kb5 Bc4+
N1bk1n1K/1Rb1P2Q/r1p5/b3Qr2/2P1q2B/1Nn2RN1/2q1Bq2/1rRb2r1 b - - 0 1 illegal: No possible last move, all moves rejected
r7/1QB1P3/q1pr4/1qPnn1n1/Rb2r2N/3B2Q1/1QnR1Br1/1Kbk1N1b b - - 0 1 legal: proof: g4 e5 h4 b5 d4 exd4 a4 f6 g5 fxg5 axb5 gxh4 Ra2 h3 Ra5 Bb7 Ra1 Bc8 Kd2 Ke7 e4 Ke6 f4 h5 b4 g5 c4 d5 Kc2 a5 f5+ Ke5 f6 a4 b6 h4 f7 d3+ Kb2 Kd4 e5 h2 b5 d2 b7 Ke3 e6 d4 b6 a3+ Kc2 d3+ Kb3 h3 Ka2 g4 Nf3 g3 Ng5 g2 Nh7 g1N Nc3 Qd5 Nb1 Nf3 Nf6 Ne7 Qc2 Nd7 b8B Bb7 Bg2 Ke2 Qb3 d1R Bd2 Rh4 Bf4 d2 Ne4 Ng5 Bg3 Ne5 Nd6 Rg1 Be1 d1N Nd2 Ne3 Nf5 Nc2 Kb1 Kd1 Bf1 Rg3 Rg1 h1R Rg2 Rh2 Qb5 Rd3 Ra2 Bc6 b7 Qc5 Bg3 Qa7 Be1 Qa6 Rf2 Rf4 Nh4 Bd5 Qb6 c6 Bc7 Bg2 b8Q Re4 Qb4 Rd7 Q8b6 Nd5 Qb7 Bd6 Qc3 Bb4 f8Q Rd6 e7 Bf3 Qf4 Bg2 c5 Bf3 Rb2 Bg2 Rb3 a2+ Kb2 a1B+ Kb1 Bf3 Ra3 Bb2 Ra4 Bc1 Qg3 Bg2 Rf4 Bf3 Qb2 Rf2 Bb5 h2 Nf1 Bg2 Bc4 Rfe2 Rf2 h1Q Nd2 Qh2 Nf1 Bh1 Bb5 Qg2 Bc4 Qf3 Rg2 Qd3 Rh2 Qd4 Bd3 Qdc4 Rf2 Qcb5 Rg2 R2e3 Rf2 Rf3 Re2 Rf2 Qa7 Raf8 Qb7 Rg2 Bf2 Ra8 Rd2+
3Nb1K1/3Qp2B/6N1/3Rb1nb/Q2Q1B2/2q1Pqr1/rknP2Rb/2Rqr1q1 b - - 0 1 legal: proof: g4 d5 h4 b5 c4 dxc4 a4 f6 g5 fxg5 axb5 gxh4 Qb3 h3 Qc2 Kf7 Qd1 Ke8 f4 Kd7 Kf2 Kd6 Ke3 Kd5 b4 h5 b6 a5 f5 g5 b7 c5 f6 a4 b5 g4 Kf4 a3 Kg5 h4 Kg6 c3 Kf7 Kc4 e3+ Qd3 b6 a2 Bg2 h2 Be4 h3 Qe2 Kb3 Qf3 g3 Qf1 c4 Qe2 c2 Na3 g2 Qe1 c3 Qf2 Nc6 b8R Bg4 b7 Bh5+ Bg6 Bg7 Bb2 c1R Nb5 c2 Qg3 Qc3 Nc7 Re1 Ne6 c1Q Qc7 Nd4 Qd7 Qd1 Rc1 a1Q Nf3 g1B Rd8 Ra2 Ne5 Nc2 Qd4 Qf3 Rd5 Rh7 Nd8 Nh6+ Ke6 Bh8 f7 Rg7 f8Q Nf7 Bh7 Rg3 Ng6 Be5 Qe8 Qd1 Qd7 Ng5+ Kf5 Qb1 Ba3 Qba1 Bd6 Kb2 Bc7 Bf2 Rf1 h1B Rg1 h2 Rg2 Bg1 b8Q+ Ka3 Qa8+ Kb2 Rf2 B1f3 Qaa4 h1Q Bd6 Bh2 Rg2 Be2 Bb8 Bb5 Bd6 Bh8 Bf4 Be5 Rf2 Qhf3 Rg2 Nh3 Ke6 Bc6 Kf7 Ng5+ Kf8 Bb5 Qf5 Be8 Qfd7 Rg1 Q7a7 Qde2 Rd1 Qef2 Qc7 Re1 Kg8 Qg1 Qc8 Qc1 Qcd7 Nb4 Rd6 Qc2 Rc1 Qcd1 Rd5 Nc2 Ra5 Qgf1 Rc5 Qg1 Rd5
B3r1R1/knBPP3/b3B2q/2r1pR1b/K7/2Q1r1nN/NrQq1b2/3Nn1b1 b - - 0 1 illegal: No proof kernel
8/1KBp1bqR/B1n3P1/b3qk2/2Nq4/RP1qr1Qb/n1n1b2N/1N2rBQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 h5 g4 f5+ Kd3 a4 e4 h3 g5 f3 e5 f2 b3 h4 g6 f4 Ke4 f3 b6 d3 b7 d2 c5 h2 c6 h3 c7 a3 Ne2 a2 Qe1 d1Q Bh6 Ne7 Bc1 Na6 b8Q Nc6 Bh6 Qe7 Na3 Nab4 Bd2 Qg7 Qb5 Ba6 Rc1 a1N c8B Nac2 Nc4 Na2 Qa5 Bb4 Ra1 Re8 Qc5 Ba5 Nc3 Ra7 Kd3 Kf5 e6+ Qe5 e7 Bb5 Rg1 h1B Ba6 h2 Nb1 Bg2 Rh1 Bh3 Qd6 Qg7 Qg3 Qe5 Rg1 h1B Rg2 Qg7 Rh2 B1g2 Qe3 Qe1 Qb6 Qee5 Bb4 Rc7 Bd6 Rcc8 Bc7 Bh1 Be2 f1Q Qbg1 Qf2 Bf1 B1g2 Rh1 Qa7 Rh2 f2 Rh1 Bd5 Rh2 Rg8 e8N Bf7 Nf6 Rce8 Ng4 Rh8 Rh1 Rh4 Nh2 Re4 Bb8 Re1 Bc7 Nc3 Ra3 Na2 Ng4 Bg2 Rh7 Bh3 Nh2 Qb6 Be2 f1Q Rh4 Qb2 Rh7 Ba4 Ne5 Re6 Kc4 Bb5+ Kd5 Bd3 Nc4 Re3+ Kd6 Qb5 Bb6 Qbd4+ Kc7 Qbc5 Kb7 Qce5 Bf3 Qe2 Bg2 Qd1 Bf1 Be2 Bd8 Q1d3 Bc7
1Nq4B/2P2Q2/P1N3r1/pk1qQ1RK/2bb4/rb1n3n/B6r/bQN1Rq1q b - - 0 1 illegal: No proof kernel
nnb1N2r/1QPQ1KPN/1N2p3/bR6/1r4qn/1Bn2Rk1/1B3r2/Q2qb2r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 h5 c4 d5 b4 a5 g5 Kf5 c5 e6 g6 d3 Ke3 d2 Kd4 a4 g7 h3 b6 h2 b5 a3 b7 h4 c6 e3 b6 e2 c7 Kg4 Ke5 a2 f5 d4 f6 d3 f7 h3 Na3 Qh4 Rb1 a1R Nf3 e1B Nb5 R1a2 Nd6 Nf6 Ng5+ Kg3 Rb5 Qg4 Ne8 R8a4 Bb2 Nd5 Nh7 Bb4 f8Q Ba5 Qf7 Rb4 Qa1 d1N Qd7 d2 Bc4 N1c3 Bb3 d1Q Rf1 h1N Rf4 h2 Rf3+ Kh4 Kd6 Ng3 Ke5 h1R Kd6 Ne3+ Ke7 Ned5+ Kf7 Nf5 Rf2 Nc6 b8N Kg3 b7 Nh4 Rf5 Nb6 Rf3+ Kg2 Qd6 Na8 Nd7 Nb8 Nb6 Bd7 Qd3 Bc8 Qd7 Kh2 Bc1 Rf2 Bb2 Nc6 b8Q Kg2 Rff5 Kg3 Qb7 Nb8 Rf3+
2N1RRB1/K1p3bQ/2P3q1/N1n5/1br2krB/bn1qn1qQ/2NPq3/Q5b1 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 h5 a4 e5+ Ke3 h4 c4 h3 a5 h2 f5 b3 f6 b4 f7 b2 g5 b3 g6 Qg5+ Ke2 e3 Kd3 e2 a6 e1B a7 e4+ Kd4 e3 g7 e2 Ra2 Bf2+ Ke4 e1N Qe2 Nd7 Nf3 g1B Ne5 g2 Qe3 Nf3 Nc6 Nh6 g8Q Ng4 Na5 Nd4 Qh7 Bg7 f8N Rg8 Na3 b1Q+ Nc2 b2 Qeh3 Ne3 Ng6 Nb3 Ne7 Qg3 Ra4 Raf8 a8Q Rf4+ Kd3 Ke5 c5 Rc4 c6 Kf4 Nc8 Bc3 Rb4 Rg4 Rb8 Bb4 Be2 Ba3 Bf3 Bb4 Bd5 Ba3 Bg8 Ndc5+ Ke2 Nf1 Qa6 Bd4 Qa7 Ne3 Qa8 Na4 Kd3 Bg7 Qa6 Bf2 Rf1 g1B Re1 h1Q Ra8 Qa2 Rf1 b1Q Bb2 Qhg2 Bf6 Qaa1 Bh4 Qf6 Re1 Re4 Qa7 Qg6 Qd4 Nac5+ Kc3 Nf1+ Kc4 Ne3+ Kb5 Q2f3 Qa1 Rc4 Re2 Qf1 Re1 Qfd3 Rb8 Qfe2 Ra8 Nd7 Ka6 Ndc5+ Ka7 Nf1 Bf6 Bd4 Bd8 Bc3 Bh4 Bcb4 Rb8 Qd1 Re8 Ne3 Nd6 Q1e2 Rf8+ Qf7 Rbe8 Qff5 Nc8 Qf6 Bf7 Qfg6 Bg8+
RN1q4/P5K1/1q3R1B/NQnnB3/1kBprb1q/1nrPb3/4bn2/2bQ3Q b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 c3 axb4 Rh2 bxc3 Rh3 Ra7 Rh1 Ra8 Ke2 h5 Kf3 c5 Kf4 e5+ Ke4 Ke7 f4 Kd6 a4 b5 g4 c2 f6 h3 Kf5 c4 Kg6 Kc5 f5 d5 d3 c3 a5 e4 a6 d4 a7 b4 g5 e3 f7 e2 f6 e1B Bg2 h2 Nh3 b3 Ng1 h4 Nf3 h3 Nh4 b2 Bd5 Bf2 Nf3 Kb4 Na3 b1Q Nc4 Bh6 Ra6 Be3 Nfe5 Bg4 Nd7 Be2 f8B+ Ne7+ Kf7 Rg8 g6 Bhf4 Bg7 Re8 Na5 Qb3 Bc4 Nd5 Bh6 Re4 g7 Qb1 Rc6 Na6 g8Q Rc8 Qg2 Nc5 Nb8 Qb2 Rg1 h1Q Kg7 h2 f7 Rc7 Bd2 c1N Rf6 N1b3 Qh3 Rc8 f8Q Qb1 Bc1 c2 Qe8 Qb2 Rgg6 Qe1 Rf8 h1N Rgf6 Qh4 Rh8 Nf2 Qhh1 Qa2 Qd7 Qa4 Qc6 Qb5 Rg8 Qbb6 Qb5+ Kc3 Ba3 c1B Rh8 Nb7 Bd6 N7c5 Be5 Rc7+ Qd7 Kb4 Rg8 Rc8 Qb5+ Ka3 Qd7 Qe8 Na6 Nb7 Bb5 Rc3 Bc4 N7c5 Qb5 Qeb8 Rgf8 Q8d6 Ra8 Qdc7+ Qd7 Qd8 Nb8 Kb4 Qb5+
n1n1q1Nr/p3qb2/Q2B2r1/P2rN3/P2R1Rn1/b1B2r1q/Q2N1q2/KQ2k3 b - - 0 1 illegal: No proof kernel
1Rb1B1Nr/3n1r1N/Rb5Q/B5Pr/P1QN1Q2/rnrk1Kb1/p5r1/bq6 b - - 0 1 illegal: No proof kernel
1QNb3k/1N2n3/2bQr1B1/PP6/1bn4R/1Nb1prQ1/2R3q1/1KnbBnb1 b - - 0 1 illegal: No proof kernel
QBn1nb2/R4K2/1rn1BNp1/bk4bN/R2nQ2P/r3bR2/3q1nPN/n7 b - - 0 1 illegal: No proof kernel
5rBB/4kP1n/Q1N2N2/b1QqPRb1/K3b1nr/4nbnR/p4nR1/4Bn2 b - - 0 1 illegal: No possible last move
R7/2P1p1b1/6rb/1QkbbR1N/KbBNnr1B/1R1bQr2/n1qP1N2/5r2 b - - 0 1 illegal: No proof kernel
nbB2Q2/2kN2Rr/8/r1rBR3/nNb1N1n1/K2PBPp1/2q2Qn1/3br1b1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 a4 Kd7 h4 e5 d6 b5 h5 c5 f3 g5 h6 c4 d3 c3 h7 c2 Kd2 g3 a5 g4 a6 b3 Kc3 g2 Kb4 g3 a7 b2 Qe1 e3 Ra2 e4 Ra5 e2 Qf2 e1N Rh6 e3 Ra4 e2 Be3 c1R Rh2 Rc5 Rh4 Nh6 Ra3 Ba6 Re4 Ng4 Bg5 Qc7 Nh3 g1B Re5 Ng2 Ra2 e1R Nc3 b1N Nd5 Nc3 Be3 Na4 Ng5 Kd8 d7 Bd6 Kb3 b4 Ne4 Qc8 Ndf6 Kc7 d8N Nd7 Ra3 Ndb6 Nc6 Bb5 Ka2 Ba6 Rc3 b3+ Ka3 b2 Nb4 b1B Nd7 Bc2 Rc4 Bd1 Rc3 Rg8 h8Q Rg7 Qf8 Bc4 Rc2 Rh7 Rc1 Rb8 a8B Ra5 Bb7 Na8 Bd5 Rbb5 Rc2 Rc5 Re2 Nf4 Bh3 Ng2 Rg5 Nf6 Bf5 Ng4 Rg7 Qb7 Na2 Qb1 Nb4 Qc2 Ne5+ Kb6 Bc8 Bb8 Nd7+ Kc7 Nd6 Rc6 Bd2 Nf4 Re5 Ng2 Be3 Rcc5 Ne4
n3n2r/8/2Nk2b1/b2pbB1r/nn2P3/P1qR3r/rN1RKQ1R/1b1Q1NB1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 c4 Ke7 h4 b5 e4 g5 h6 d5 c5 f5 c6 b3 c7 f3 h5 d3 h7 b2 h6 g4 Qa4 f2+ Kd1 g3 Rh3 f4 Qa5 d2 Rh2 b4 Bb5 f1R+ Ke2 d1N Nf3 g2 Qa6 g1B Bd2 b3 Nh4 f3+ Kd3 f2 Bd7 Nc3 Ng2 Nb5 Bc1 Bg7 Rh5 Nc6 Ne1 Nb4+ Ke2 Be5 Qa4 Nf6 Rh2 Ne8 Be3 Kd6 Nd2 b1B Bf5 b2 Nd3 Qf6 Qd1 Be6 c8Q Bf7 Qcc2 Nbc7 a3 Bg6 Ba7 Rc8 Bb6 Na8 Ra2 Rc3 Rh3 Bgh2 Ba7 Rh1 Nf1 Bhf4 Rg3 Bd2 Be3 Rf8 h8R Rh5 h7 Qg7 Rh3 Rb3 Rh2 Qc7 Rg8 Qc3 h8N Be1 Ng3 f1R Bg1 Rf3 Nf1 Rfh3 Nf7+ Kc7 Rg7 Rfh8 Nd8+ Kd6 Qcd2 Qc8 Rc7 Na6 Nb4 Bc2 Rc4 b1N Rd4 Rb2 Qf4 Qc7 Nd3 Ba5 Qe1 Nb4 Qd1 Qc6 Qf2 Nc3+ Kd2 Qc5 Nc6 Na4 Ke1 Qc3+ Ke2 Rb3 Rb2 Bb1 Rc2 Rb2 Rd2 Ra2 Nb2 Qc5 R4d3 Qc4 Bg4 Qc3 Bf5
K6N/brRrBN2/1PR4P/1nb1Q2n/3rNQ2/1RqBr1n1/1p3bb1/3k1n2 b - - 0 1 illegal: No proof kernel
3q2bb/N1k2BQ1/pr1Bn3/r2bP2K/2P4n/1N1n1r2/1R1B2br/2RNQn2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 Kf3 d5 g4 Kd7 e4 h5 c4 h3 b4 h2 b6 d3 g5 d2 g6 h4 b7 d4 b5 h3 g7 d3 b6 Na6 b8Q Nh6 g8N Nc5 e5 Ne6 b7 Bg7 Qc2 d1R Bb2 d2 Nc3 Rb1 Nce2 d1N Ba3 Rb6 Bc5 Nb2 Rc1 Nd3 Bg2 Rh7 Qb2 Bh8 Qb4 Kc6 Nc3 Bd7 Ke2+ f3+ Ke3 Rf7 Nd1 f4+ Ke4 f2 Kf3 f1N Be3 Rf6 Qe1 Nf5 Kg4+ f3 Bd2 Nh4 Ne2 Rf5 Rg1 h1R Rc2 h2 Rb2 Be8 Nc1 Bf7 Ne7+ Kd7 Bh3 f2 Nb3 Rf3 Nc6 Bg8 Bg2 a6 Qa7 Rc8 Kh5 Kc7 Bh3 Rb8 Bg4 Rb5 Bh3 Ra5 Bf5 Ne3 Bh7 f1B Bg6 Bg2 Bf7 Nf1 Qae3 Rg3 Na7 Bd5 Qh6 Rf3 Rg2 Rg1 Qg7 h1B Rg4 Rg2 Rg6 Rh2 Rg1 Bg2 Rh1 Rc8 b8B+ Kb7 Qe2 Rc6 Bd6 Rb6 Qe1 Ra2 Qe2 Ne3 Nf2 Ra5 Rc1 Nf1 Qe1 Rc5 Be7 Ra5 Nd1 Kc7 Bd6+
3R2nK/1pR5/1BQ2n2/1P1N2rB/B3R1Q1/q4Pkb/n3n1r1/Nrrqn1q1 b - - 0 1 illegal: No proof kernel
kr6/2Q1q2b/NRrNq1Rp/qR2rrQ1/3PBn2/1Bb3KP/1q6/1bq1B3 b - - 0 1 legal: proof: b4 g5 c4 d5 a4 Bg4 f4 gxf4 e4 dxe4 b5 Be2 c5 Nd7 c6 bxc6 a5 Nb6 axb6 Bg4 Nc3 Bh3 Nb1 Bc8 Kf2 Kd7 g4 f5 d4 e5 h3 a5 b7 e3+ Kg2 e4 b8R a4 b6 f3+ Kh2 e2 b7 e1R g5 f4 g6 a3 g7 e3 Ra2 e2 Rb2 h6 Qd2 c5 Qe3 Kc6 Qd3 c4 Rd2 f2 Qe3 c3 Bg2+ f3 Qe7 f1B Rb2 a2 Qe5 a1Q Qe7 c2 Na3 Nf6 g8B Ra6 Rb3 Bf5 Rb2 Nd5 Nb1 f2 Qe3 Bb4 Bh7 Qa5 Be4 Qe7 Re8 Bc3 Bd2 c1Q Bg8 Bh7 Rb5 Qb2 b8Q Bg2 Qg5 f1R Kg3 Rf5 Nf3 Rb6 Bc2 Nf4 Nh4 Be4 Na3 Bd3 Qd8 Kb7 Bgb3 c5 Rg8 c4 Rg6 Be4 Qd7+ Ka8 Qc7 Rc6 Bb1 Rd8 Nc2 Rb8 Nb4 Bc2 Na6 Be4 B1a2 Bb1 Rb6 Bb4 Bc2 c3 Be4 c2 Bb3 c1Q Rf1 Bc3 Rf2 Re5 Nf5 Rf1 Nd6 e1Q Rb5 Qe2 Be1 Qc4 Rd2 Qce6 Rb6 Nd5 Rg2 Rff5 Rh2 Nf4 Rc2 Bd2 Rc5 Bc3 Rcb5
2n2Q2/1PBp1q1R/2q2N2/1R1PNn1n/N1B3K1/1qk3nn/Q3n1rq/1Qr4b b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c3 gxh4 Nf3 b5 Bb2 b3 Ng1 b4 Bc1 b2 Na3 b3 Nb1 Bb4 cxb4 Qf6 Nc3 Qg5 Nb1 Qd8 Kf2 Ke7 Kf3 Kd6 a4 Kd5 d4 Kc4 g4 f5 a5 h5 a6 c5 g5 h3 a7 h2 g6 h4 g7 h3 b5 Qc7 b6 Bb7+ Kf2 f3 Ra3 f4 Qe1 Nf6 g8N Nc6 Ra6 Ne7 Nh6 Rac8 a8Q Qc6 Ra7 Nh5 Nf7 Rhg8 Nc3 b1Q Bg2 b2 e4 Qa2 e5 b1Q+ Nge2 Qbb3 Rg1 h1Q e6 h2 Kf1 f2 Ne4 Rg5 Bh3 Rg2 N2c3 Kb4 Bf5 c4 Na4+ c3 Ne5 Rc7 Bg4 Nc8 e7 Qf7 e8Q Qab3 Ke2 f1N+ Kf3 Nfg3 Ra5 Nf5 Qf1 c2+ Be3 c1N Qf8+ Ncd6 Rc5 Ne2 Qb1 Nc8 Rf1 Qg1 Qa6 h1N Bh3 Nfd6 Be6 Nf2 Bc4 Qh2 Rh1 Nf5 Qa7 Nh3 Qa8 Nhg3 Kg4 f3 Bf4 f2 Nf6 f1N Qa6 Nh5+ Bg3 Qb5 Qa7 Be4 b7 Qa6 d5 Qc6 Nb6 Kc3 Rb5 Rf2 Bf4 N1g3 Qa6 Rg2 Qaa2 Qce6 Ng6 Rc5 Bc7 Qc6 Ne5 Kd4 Bd3 Rc1 Bc4 Kc3 Na4+ Kd4 Ra5 Nhg1 Ne8 Nhg7 Kg5 Qh7 Nd3 Rh2 Nac5 Kc3 Nf6 Rf2 Rh3 Bh1 Kg4 Rg2 Rb5 Qh6 Rh5 Qh8 Ne5 Qh7 Rg5 Qh2 Rh5 Nh3 Rh7 N7h5 Na4+
R3N3/NrB1Kp2/4nPRr/kQ2r3/2R1rrP1/rq1N1BQ1/b3n3/1r1q3r b - - 0 1 illegal: No possible last move
Nr2BQ1r/1R3q1r/1Bq4b/1rr3kB/5pPn/K4Pr1/5Nn1/3QrRNr b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 Bd2 axb4 Bc1 g5 e4 gxh4 Rh2 d5 Qd3 Be6 Qd1 d3 Rh3 d4 Rh1 Bd5 exd5 Qd7 Qd2 Qc7 Qd1 Qd8 Kd2 b5 a4 e5 c4 Ke7 g4 Kf6 f3 h5 a5 h3 c5 e4 d6 b3 a6 h4 a7 e3+ Ke1 h2 d7 b4 c6 h3 c7 e2 Kd2 e1R c8Q b2 Nc3 b1Q Ba3 b3 Bb4 b2 Ra3 Qa2 Nce2 b1R+ Qdc2 Nh6 Rb3 Kg5 Rb2 f5 Qa4 f4 Qaa6 Nc6 Qa3 Qf7 Qa5+ Ne5 Qc1 Qc7 d8N Rb8 a8B Qc6 Qac5 Nf5 Ng3 Ng6 Qd1 Bh6 Qf8 Ne3 Bc5 Nh4 Rb7 Rb5 Kc1 Neg2 Be2 d2+ Kc2 Qfd5 Bd3 Qf7 Bg6 d3+ Kc3 Re5 Bh5 Rh7 Qb1 d1R Ne6+ Kf6 Kc4 Rde1 Qd1 d2 Kc3 Rh8 Nc7 Kg5 Kc2 Ra5 Kb2 Rb5+ Ka3 Rf5 Qa1 d1R Bb6 Rfc5 Qd4 Rdb1 Qd1 Rh7 N1e2 R1b2 Rf1 h1R Ng1 Rh2 Nh1 Rd2 Nf2 Rh1 Ra7 h2 Bb7 Rh8 Na8 Rd7 Ne2 Rg1 Bc8 h1R Rb7 Rd8 Bd7 Rh7 Qfd6 Rdh8 Be8 Rh3 Qf8 Rgh1 Ng1 Rg3 Qb3 Re3 Qd3 Re1 Qd1
RQ2q1R1/q2n1b2/1n1Nb1r1/2p1b3/1PPq1qQ1/2N1n3/2k1K1BB/B1b3Rn b - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 f5 a5 fxg4 a6 bxa6 Bh3 a5 Bf1 a4 h4 g5 Qf3 a5 Qg2 g3 Qf3 g4 Qd1 Ra6 Bh3 Rg6 Bf1 Rg5 hxg5 Qd5 Bd3 Qd4 Bf1 Qd8 c4 Kd7 b4 Kd6 f4 c5 d4 h5 f5 e5 f6 a3 g6 a4 d5 g2 f7 g3 g7 a2 Ba3 e3 Nh3 g1N Qc1 h4 Nc3 e4 Bd3 Ke5 d6 Kd4 d7 g2 Qd2 e2 Qf4 Qc7 d8B Nf6 g8R Rh6 Be7 Nbd7 Ng5 h3 Kd2 e1Q+ Kc2 h2 Qd2 e3 Bb2 a3 Qc1 e2 Bf5 Rg6 Bd8 Bh6 f8Q Qf4 Be7 Nd5 Qe8 Nh3 Nh7 g1Q Bd3 N5b6 Nf6 Nf2 Rb1 a1B Nh7 a2 Bf8 Qgg4 Rf1 h1B Qd1 Bd5 Bd6 Nh1 Ng5 Bf7 Nge4 Qgh4 Rg1 Qe7 Rg2 Qef2 Qf8 Qe8 Rg1 Ke3 Kc1 e1N Qg4 Nc2 Kd1 Kd4 Be2 Ne3+ Kd2 Qh4 Bf3 Qhf6 Ke1 Kd3 Bg2 Kc2 Ke2 Qd4 Be5 Bg5 Qd6 Bh6 Qb8 Bg5 Nd6 Bh6 Bc1 Bb2 Bd2 a1Q Be1 Qa5 Bg3 Qa7 Ra1 Bc1 Bh8 Bg7 Bh2 Be5 Bg7 Bb7 Ra5 Bbd5 Ra3 Bde6 Ra5 Qc7 Ra8 Qa7 Nce4 Qd5 Nb5 Bc7 Ba1 Qd4 Nbc3 Be5 Nd6
RnN1n1B1/1Qr5/3N4/2q1R2p/pQ1Q2P1/1rqb1K1P/Rk1r1Bn1/2q1bb2 b - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Ke2 Kd7 d4 Ke6 c4 f5 g4 a5 c5 Kd5 b6 Kc4 h3 h5 d5 e5 c6 b3 d6 a4 d7 b2 c7 e3 b7 f3+ Ke1+ e2 Kf2 e4 Bd2 e3+ Kg3 f4+ Kh2 f2 Kg2 f3+ Kg3 Qg5 d8Q Bf5 Qc8 Bd3 Nc3 e1N Nb5 b1R Qd7 e2 c8R+ Qc5 Na7 Nf6 Be3 Kc3 Ra2 Rh7 Re8 Rb6 Nc8 Ng2 Qd5 e1Q Ne2+ Kb4 Nd4 Kc3 Qf7 Rb3 Nf5 Bg7 Be2 f1Q+ Bf2 Bh8 Rd8 Ne8 Nfd6 Ra5 Qd5 Rc7 Qb1 Qc1 Rg1 Qfd1 Re1 Qdd2 Bd1 Rab5 Re5 Rb2 Qa1 Rb3 Be2 Kc2 Qc4+ Qc3 Qb4 Bg7 Bf1 Bh6 Be2 Bd2 Bf1 Ba6 Bc4 Be1 Bg8 Bd3 Qd4 Kd1 Qb4 Rd2 Qb2 Q3c2 Q2d4 Q2c3 Ra1 Kc2 Ra3 Nd7 b8Q Kb2 Q8b7 Nb8 Ne7 Na6 Ra8 Nb8 Nec8 Bb1 Kh2 Bd3 Ra2+ Kb1 Bh4 f2 Kg3 f1B+ Kf3 Re7 Bf2 Rc7 Ra1+ Kb2 Ra2+
3b2K1/3r2br/kR6/1RP3p1/Bq1Nnn2/Q1nb2qq/RpP2N1Q/N1r1B3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 b5 e4 g5 h4 d5 a4 Kd7 h5 Kc6 e5 Kb7 a5 f5 e6 b3 e7 d4 e8Q b2 h6 d3 h7 f3 Kg3 f4+ Kf2 b4 Qa4 g3+ Ke1 g2 Kf2 d2 Nc3 b1Q Nb5 b3 Bd3 Bf5 Nh3 Ka6 Qe2 Nd7 Ra2 Ra7 Qa3 Ngf6 Rf1 Bg7 Nd4+ Kb7 Bc4 Qc7 Bb5 Nh5 Ba4 Bd3 Bb2 Ka6 Bc3 b2 Nb3 Ndf6 Na1 Qd6 Qe5 Rd7 Re1 Qc7 Re4 Qb7 Rb4 Qh1 Qc7 Qh2 Rb5 Qe4 Qe5 Qb4 Qb8 d1R Qc7 Nd5 Be1 Nc3 Qe5 Rc1 Qb8 Rf8 h8R Rff7 Rh6+ Bf6 Rg6 Rh7 Qd6+ Ka7 a6 Qg3+ Kg1 Bd8 Nf2 Qg4 Kh2 g1B+ Kh1 Bh2 Qe5 Qg3 Rgb6 Ka8 a7 Bg1 Nh3 f2 Qc7 f1N Nf2 Nd2 Qd6 Qe3 Kg2 f3+ Kh3 Nf4+ Kg4 Nde4 Kf5 Bh2 Ng4 Qg1 Nf2 Qg2 Qh6 Bg1 Qh2 Qg3 Ng4 Bd4 Nf2 Nfe2 Ke6 Bg7 Qh4 Rd5 Kf7 Rd7+ Kg8 Nf4 Ng4 f2 Qh2 f1Q Nf2 Qh1 Rc6 Bb6 Rd6 Kb7 a8N Qhg2 Nc7 Q2h3 Ne6 Ka7 Nd4 Ka6 Rd5 Bd8 Rf5 Rd5 Rf7 Rd6 Rfb7 Rd7 R7b6+
2KB2Q1/1n3B1Q/6RN/NrpP4/2qb1n1R/n1b3N1/2P1rbqp/B1qkr3 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 Ke6 c5 a4 b5 f4 h5 f5 b3 d3 h4 a5 e3 g5 e2 a6 e1B g6 h3 f6 b2 f7 b4 a7 h2 g7 b3 Qd2 Bf2 Nh3 g1Q Qg5 g2 Ra5 Nf6 g8Q Nc6 Q8g6 Nd5 Nd2 Kc3 d4 b1Q Q5h5 b2 Ng5 Bg7 f8B Rb8 a8N Rb5 Ra4 Na5 Nf7 Nb7 Nb6 Qc7 Qhg4 Qf4 Kd7 e5 Nh6 e4 Qh7 e3 Be7 e2 Bd8 e1R Nbc4 Rhe8 Kc8 R8e7 Bd3 R7e2 Bg6 Qa2 Na5 b1N Bh5 Na3 Nf1 Qa1 Be3 Qc1 Bf7 Qe4 Beg5 Qd3 Bgf6 Qe4 Ng3 Kd2 Ngf5 Kd1 Qgg6 Bh8 Qgg8 Qd3 Rb4 Qf1 Rg1 Qc3 Rb3 Qc4 Rh3 Nf4 d5 Bg7 Bb2 Bc3 Rh4 Bfd4 Ba1 Qf3 Rf1 g1B Rf2 Qh3 Rg2 Bgf2 Rg6 Qg2 Ng3
3BK3/2R1Q3/3Q1q1P/rR1n3N/Bp1N1pbP/4b1qr/1r1bB1k1/nn3qQ1 b - - 0 1 illegal: No possible last move
1n1K1Q2/2NR1N2/4Qnp1/q1b1rn1P/2B2r1B/R2p3P/1qRB1q1r/3b1bk1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Kd2 Kf7 c4 Ke6 a4 Ke5 a5 Kf4 a6 b5 a7 d5 c5 e5 f3 b3 c6 d3 Kc3+ d2 c7 Ke3 Bh3 Kf2 Bg4 e3 Ne2 g6 Nf4 e4 Kd4 b2 Ke5 b4 Qb3 d1N Na3 b1Q Be6 e2 Nb5 e1Q Bd2 e3 Ra3 e2 Nd6 d4 Nd5 d3 Nf7 Nf6 f4 Bc5 f5 Ne3 Rf1+ Kg2 Rf4 Qf2 Rd4 e1R h3 Qb2 Qc4 Bb7 c8R b3 Nc7 Kg1 Bd5 Bc6 Ke6 Rf8 Qa6 Re2 Bc4 Bg2 Rd7 Bf1 Qd6 Ng8 f6 Nf5+ Ne5 Re4 f7 Nf6 Qe7 Re8 f8B Rd4 Nf7 Rf4 Nb5 Qa5 Nc7 Qc1 Bh6 b2 Bg5 b1B Bh4 Qb2 Nh6 Rd8 Nf7 Bc2 Qd6 Bd1 Qd5 Nd6 Ke7 Rg8 Qc6 Rg7 Kd8 Nf5 Qe6 Rh7 Ne5 Re7 Nf7 Qa6 Qd6 Re5 Qe6 Qa5 Qc6 Na6 Qe6 Rb8 a8Q Rb6 Qe8 Nb8 Qa6 Rbe6 Qf8 Re2 Qc6 R6e5 Qcd6 Qe1 Qe6 Rh2 Rc3 Qf2 Rc2 Na6 Ra8 Nb8 Ra6 Qab4 Ra1 Qa5 Ra3
qr5k/r3N1bq/Q1PK1N1n/pB1n1b1R/q3RBN1/1p5r/4P2n/3Q2bR b - - 0 1 illegal: No proof kernel
n1N3bK/1rn1N1R1/2Prqp2/B2kr2B/1q1b1p2/1nQ1QPN1/B2R1b2/q7 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Qd2 cxd4 Qg5 e5 Qf4 exf4 f3 Ke7 Kf2 Ke6 c4 d5 e4 h5 g4 a5 b4 f6 g5 a4 e5 a3 c5 d3 g6 d4 c6 h3 b6 h4 g7 d2 b5 d1R b7 h2 b6 d3 Bd2 h3 Ra2 Ne7 g8N Qe8 Ne2 Nd7 b8Q Ra5 b7 Rh7 Rc2 a2 Na3 a1B Qa7 Nb6 b8Q Na8 Qb3+ Nd5 Rg1 h1Q Nb5 h2 Nd6 Rb7 Rg7 Rab5 Qb4 Ndc7 Ng3 Rd5 Bc3 d2 Bc4 Qe1+ Kg2 h1N Kh3 Nf2+ Kh4 Nd3 Ba2 Nc5 Qb2 Qe4 Ba5 Qb4 Qc1 Bd7 Nc8 Nb3 Qb6 Qee7 Kh5 Re1 Kh6 d1Q Kh7 Qe8 Na7 Bc5 Kh8 Rd6 Rd2 Bf2 Nc8 Bc3 Qc2 Qa1 Qa7 Re4 Qe3 Bd4 Qcc3 Kd5 e6 Re5 e7 Qf7 e8B Be6 Qc1 Qe7 Bh5 Bf7 Qcc3 Qe6 Nh6 Bg8 Nhf5 Rb5 Bb1 Rb6 Ba2 Rb7 Nfe7+
1r1nQR2/1b2b1BQ/pb3P2/3q1Q1p/k4K2/PRN3n1/1rNNq1q1/n4Br1 b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b3 g5 b4 gxh4 bxc5 d5 Qe2 dxc4 Qf3 Qd3 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 f4 Kb5 d4 h5 g4 e5 c6 h3 g5 a6 d5 h2 f5 Nh6 d6 Rg8 c7 Be7 f6 Nc6 d7 Rb8 g6 Nf5+ Kd2 e3+ Ke2 e4 g7 c3 a3 c2 Bg2 Ka4 Qd3 b5 Bf1 b4 Nf3 b3 Bd2 c1B Rg1 h1Q Nd4 b2 Nc2 Bb7 c8N Qa5 d8Q Qd5 Qc7 Nd8 Nd6 Qh3 Nb5 Ng3+ Ke1 e2 Kf2 e1N Ke3 Qh1 Kf4 e3 Qf5 e2 Qcd7 Qh3 Qe8 Qhg2 Be3 Bd2 Ra2 Bdb4 Nd2 b1R Rb2 Ba5 Rb3 Rb2 Bc5 Bb6 Bb4 Rh8 g8Q Rh6 Qgh7 Rg6 Ne3 Nc2 Bc5 Na1 Nc2 e1Q Bd6 Nf7 Bc5 Bed8 Bf8 Be7 Bh6 Qee2 Bg7 Qh1 Rg2 Nd8 Rg1 Ne4 Rgg3 Qh3 Rgc3 Rg1 Rc8 Qhg2 Qed7 Nc6 Rf8 Nd8 Qe8 Ng3 Nc3+
1QK5/1Q2prb1/kr6/1qPq1BBR/bb3R2/n3rN1n/Pnq1p3/1B1N1N2 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Kd2 b5 Ke3 g5 Kd4 d5 Ke5 Kd7 c4 Kc7 f4 Kb7 h4 b3 c6+ Ka6 f5 d4 f6 b2 f7 d3 h5 e3 c7 d2 h6 e2 h7 g3 Bg2 b4 Nf3 b3 Bf1 g4 Nh4 g2 Qe1 d1N Qg3 g1Q Bh6 Nd7+ Ke6 Qc5 Nf3 Bg7 f8Q Ngf6 Ne1 Nh5 Qff3 Qb5 Bh3 Rf8 h8N Rf7 Nc3 b1R Be3 b2 Nc2 Qg8 Qe5 g3 Bf5 g2 Bg5 g1B Ng6 Bc5 Ne3 Bb4 c5 Rb8 Qd6+ Rb6 Nf1 Bb7 c8B Ne5 Rh4 Nc4 Rf4 Na3 Nh4 Rc1 Qh1 b1Q Nf3 Nb2 Nd1 Rc3 Bd3 Qc1 Bb1 Qc2 Bd7 Bc6 Qb8 Nf6 Qg2 Ne4 Qh1 Nf2 Qg2 Nh3 Qh1 Qa5 Bc8+ Bb7+ Kd7 Qb5+ Kc7 Re3 Bf5 Bc6 Qg2 Qh7 Kc8 Qh5 Nh4 Be8 Qgb7+ Ka5 Nf3 Bc6 Qd7 Ka6 Qdc7 Be8 Qcb7+ Ka5 Bg4 Bh8 Bh6 Rbf6 Nc3 Qd5 Bg5 Qa6 N1d2 Rb6 Bd7 Ng1 Bf5 Qcd3 Bc2 Ba4 Rc1 Bg7 Bb1 Qab5 Re1 Qc2 Nd1 Nh3 Rh1 Nf2 Rh5 Nh3 Qd7 Ka6 Nf1 Rb3 Qc6 Re3 Qcb7+
2N3qN/2rBKQ2/4b2r/1kP3rp/2n1RQbR/3r3p/Pb1Br3/n3R1Nn b - - 0 1 illegal: No possible last move, all moves rejected
1n1r4/1bR2Bkr/2Rr1n1R/1p1N1N2/1PB2bn1/3p1Pr1/KQ1B2r1/bQq5 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 d4 c5 Qh5 cxd4 Qf3 f5 exf5 a4 Qb3 axb3 Kd1 Kf7 g4 b5 c4 h5 a4 d5 f6 e5 c5 b2 Kc2 d3+ Kb3 d2 c6 d1R f3 h3 c7 h2 g5 d4 a5 h4 a6 h3 a7 e4 Be3 Bd6 Bf4 e3 Ka3 e2 Bd2 e1B Nc3 b1R Nd5 Bb7 c8R Qc7 Ne2 Rb2 Ng3 Qc1 Bc4 Bf4 Rc6 Rh7 g6+ Kf8 f7 Nf6 Rc7 Kg7 Ra2 Rc2+ Rb2 d3 Ka2 Bf2 Rc6 Bd4 Rc7 Rg1 Nf5+ Kh8 Rc6 Rg3 Rc7 Rh6 g7+ Kh7 f8Q Bde5 Rd1 h1N g8B+ Kg6 Be6 h2 Qh8 Nf2 Rh1 N2g4 Bg8 Nc6 Be6 Rd8 a8Q Nb8 Qa4 Rh7 Qb3 Rhd7 Rc6 Rd6 Bg8 Rc3 Rb1 Rc2+ Qb2 Bc3 Qh3 Bd4 Qf1 Bc3 Bf7+ Kh7 Rg1 h1R Rg2 Rh4 Rh2 Kh8 Qd1 Rh7 Rh6 Bce5 Be3 Rcg2 Bd2 Bd4 Qg1 Qc3 Re1 Qc1 Re7 Bc3 Rec7 Bd4 Qf2 Bc3 Qb1 Ba1 Bh5 Kg8 Qd4 Kf8 Qdb2 Kg8 Bf7+ Kf8 Nh4 Kg7 Nf5+
4R3/R3B3/bKPq1nb1/2N1pP1B/1n2rn2/1p2Q1N1/rb1Brb2/k3b1QN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 g5 h4 b5 c4 d5 a4 b3 a5 b4 f6 d3 a6 d4 h5 b2 h6 g3 f7 b3 h7 d2 a7 g2 f3 d3 Qc2 d1N Nd2 b1B Kb5 Kd4 c5 e5 c6 g4 f4 g3 Ra2 Ba3 f8B Bb2 Rh6 Nc3+ Kb4 Nf6 Qd1 Ne2 Kb5 Kc3 Be7 Qd6 Nh3 g1B Nf2 g2 Kb6 Na6 Rh1 Rg8 h8Q Rg4 Qh3 Nb4 Qe3 Ba6 Rh8 Bh2 Nh1 g1B Bh3 Bg3 Re8 Be1 Nf1 Bgf2 Nfg3 Rh4 Bg4 Bc2 Ka5 Bb1 Bh5 Bc2 Qb6 d2 Ra1 Bh7 f5 Bg6 Ra4 Re4 Qe3+ Qd3 Kb6 Nf4 Qg4 d1R Bd2+ Kc2 Ra5 Kb1 Ra3 Qd6 Ra2 Rc8 a8N Rc7 Ra4 Ra7 Nc7 Rc1 Ne6 Rc2 Nc5 Ra8 Bc3 Re2 Ra2 Bd3 Ra7 Ba6 Bd2 Ka1 Rb7 Bb5 Rd7 Ra2 Ra7 Bd3 Nf1 Bb5 Qg1 Ba6 Nfg3
n1q2kb1/1r1b4/rP1p4/n2BP3/6NQ/B1Q1b1br/KpR1Qb1N/3n1R1R b - - 0 1 illegal: No proof kernel
r3B1RK/b4bp1/p1nnB3/5bP1/1QPNn3/3Q1r1N/R3nQ2/qNk1n2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Be3 cxd4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 d5 b4 f5 e4 a6 c4 d3 h3 g2 b6 d2 b7 f3 b5 f2 b6 f4 Nc3 d4 Ra4 f3 Qb3 d1B Qb1 d3 Ra2 d2 Qb2 Nf6 h4+ Kh6 h5 Kg5 h6 Bc5 h7 Ne8 Be2 f1R Qb1 Rf8 h8Q f2 Qh2 Qf6+ Kd5 Rh8 e5 Nd6 e6 Nc6 b8Q Rh6 b7 Ba7 Qh4+ Kf4 e7 Ke3 e8B Bc2 g5 d1N Qg3+ Kd2 Bg4 Nb2 Bgd7 Rh8 Rh4 Rf8 Rh8 Bg6 Nh3 g1N Qg2 Qd4+ Ke6 Rf3 Qf5 Bh5 Nb1+ Kc1 Rf8 Nd3 Qh7 Ne1 Qd3 Nf7 Qd6 Ne2 Qb4 Nd6 b8N Qa1 Qg1 Na5 Nc6 Bg6 Qg3 Rh1 Nd4 f1N Qf2 Nfg3 Ke7 Bh5 Rh8 Bf7 Kf8 Nc6 Bf5 Bg6 Kg8 Bf7+ Kh7 Nge4 Rg8 Bd7 Kh8 Bc8 Be6 Bd7 Bd5 Bf5 Be6
8/1b1rBpPN/3n1nQ1/r3N1R1/pK5P/1R1Bnn1k/1r2bqQb/R1n3B1 b - - 0 1 illegal: No proof kernel
1b5K/n2np2N/1BRr1B1q/r2bP2R/1nB1k1r1/4N3/1Q1pPQ1r/Rr2b3 b - - 0 1 legal: proof: f4 c5 b4 h5 d4 cxd4 g4 hxg4 b5 Qc7 b6 Qe5 fxe5 axb6 Bd2 b5 Bc1 b4 Kf2 f5 Kg3 Kf7 Kf4 Kg6 c4 d5 h4 b5 a4 d3 c5 d2 c6 g3 c7 g2 a5 d4 a6 b3 a7 b2 Qb3 d1R Qe6+ Nf6 Qd5 b4 Qe4 b3 Qc6 d3 Qb7 Nbd7 Bd2 Nd5+ Kf3 f4 Ke4 f3 Ra2 f2 Rh3 Nb4 Nf3 g1B Nc3 b1N Ra4 b2 Bg2 f1Q Be1 Na3 Bf2 b1R Bb6 Nb5 Ng5 Qf6 Ra1 Qe6 Qb8 Bb7+ Nd5 Bc5 c8Q Bd6 Qc5 Bc6 Qb7 Bb8 Qf2 Rh5 Nh7 Rd2 Kf3 Kf5 Rh2 Rh6 h5 g5 Bh3+ g4+ Kg3+ Ke4 Kh4 g3 Kg5 g2 Ne3 Qb3 Be6 Bd5 Rh1 Qc3 Rc1 Qb2 Rc6 Qc1 Bg8 Rd1 Bf7 Rd6 h6 Rh1 Be6 Rh3 Kg6 g1R+ Kf7 Bg7 Kg8 Rg4 Bf7 Bf8+ Kh8 Rh2 Qa6 d2 Qa2 Qh1 Qb2 Bg7+ Kg8 Bb3 Bc4 Ba2 Nf8 Bb3 h7 Ba2 h8B Bf6+ Bg7 Bh4 Kh8 Bb3 Nh7 Bg3 Qf8 Be1 Qf7 Qf3 Qf6 Qh3 Qf2 Qh6 Bf7 Bd5 Bf6 Bc7+ Bg8 Rf8 a8R Bb8 R8a3 Rc8 Rac3 Rc7 Be6 Ra7 Bf7 Ra5 Rc1 Bb3 Bc4 Na7 Ba6 Rh1 R6c2 Bd5 Rc6 Rhh4 Bc4 Rh5 Qh2 Bg3 Rh1 Be1 Qf2 Rhh4 Rh3 Rh5 Rg3 Rh1 Rh3 Rh2 Rh5
KQ2qRNk/BP5r/Q2bQPR1/r3pN1r/p4nnr/8/4r3/1BnNb2b b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg7 c4 a5 b4 e5 g4 h5 f5 d5 b6 h3 b5 d3 Ke3 d4+ Kf2 a4 b7 h2 b6 h4 g5 d2 c5 e3+ Kf3 d3 Ke4 h3 g6 e2 c6 e1B c7 Nc6 b8Q Rh4+ Qg4 d1N f6+ Kh8 Nf3 d2 Bd3 Bd6 Kd5 Bb7 c8Q Nh6 Qge6 Nb2 Nc3 d1R Nd4 Rd2 Nf5 Ng4 Nd1 Re2 Be3 Qe8 Bb1 Nd8+ Qc6 Nd3 g7+ Kh7 g8N Ra5+ Bc5 Nc1 Ra3 Rh5 Rg3 Kh8 Rhg1 h1R Rd3 Nh2 Rg6 Ng4 Rc3 h2 Rg3 Ba6 b7 Bb5 Qa6 Bc6+ Kc4 Bg2 Ba7 Rh4 Rg7 Rh5 Rf7 Bf3 Rf8 Bg2 Qf7 Ne6 Qd7 Nf4 Qe6 Nf2 Rg6 Ng4 Qe7 Rf1 Qf7 h1R Qe6 R1h4 Qb5 Bc7 Kc5 Bd6+ Kb6 Bh1 Qd3 Rf3 Qa6 Rfh3 Qd8 Be7 Kc7 Rhh2 Kb8 Bd6+ Ka8 Rh7 Qb8 R4h5 Qd8 R2h4 Qb8
1n1b1rR1/1pbNNp1K/n4P2/1q1QN3/3B3k/1Q1Rr1b1/b3brBP/3n1Q2 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 Qb3 hxg4 Qa4 Ra5 Qd1 Ra8 a4 Ke7 e4 c5 Ke2 g5 Ke3 d5 f4 c4 a5 d4+ Ke2 c2 a6 g3 Kf3 g2 a7 d3 e6 Kf6 Kg4 c3 f5 d2 e7 Nh6+ Kh5 g4 e8Q g3 Qe2 d1B Qf3 Be6 Bb5 Ba2 Bc4 Bd6 Qb5 Rf8 Qd5 Bc7 Be3 c1R Bf1 c2 Nc3 Qe8 Bd4+ Qe5 Rb1 Be2 Rb3 Ng4 Qd3 Rd1 Nf3 g1B Bg2 Bf2 Rg1 Ne3 Kh6 c1N Kh7 Rd2 Qb1 Nd3 Qf1 Nc5 Ra3 Nbd7 Rb3 Rab8 a8Q Nd1 Qa4 Na6 Ra3 Rbe8 Qab3 Re6 Bc5 Qd4 Ne5 Qc4 Bd4 Kg5 f6 Bf3 Na4 Be2 Nb6 Ndb8 Nbd7 Re7 Nf3+ Kg4 e5 Qb5 e6 Ree8 Nfe5+ Kh4 e7 Be1 Be4 g2 Bf3 Bg3 Be4 Rc8 e8N Bd8 Nd6 Rc3 Bf3 Re3 Nc8 Rb2 Ne7 Rd2 Rh1 g1B Bg2 B1f2 Rg1 Rc2 N5c6 Bgc7 Nce5 Rb2 Qc2 Bg3 Rd3 Bg4 Qcb3 Rf2 Bh1 Be2 Rg2 Bf4 Rg8 Bg3 Bg2
2b1n1q1/1b1k2b1/rnqQ1R2/3BQ2P/3pR1rp/1NB5/2b1PN2/n1KQ1B1b b - - 0 1 illegal: No proof kernel
K6b/1Br2Q2/3rbb2/B2RnP2/1N1bP1pQ/nkN3q1/pn1b2qN/2Q3R1 b - - 0 1 illegal: No proof kernel
Rb2n1B1/2r1N1q1/1Q3Bq1/3r1p1q/4RpR1/r1qkPQ2/1nb1P1K1/1Nq2Q2 b - - 0 1 illegal: Other
Rb1Q4/4K3/rqN5/b1kP1b1b/Qr1q1pB1/1Rn1nP1N/b1p2r2/1Q1B2R1 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 Be3 d5 axb5 dxc4 d5 Na6 Bb6 Nb8 Bd4 exd4 Kd2 Ke7 e4 Kd6 g4 f5 b4 a5 b6 h5 g5 c5 g6 h3 b7 f4 b5 d3 Kc3 d2 g7 h2 b6 a4 Bg2 a3 Qe2 d1B Nf3 a2 Qb2 h4 Qc1 h3 Nbd2 Bb3 Ng1 Ra6 Rb1 a1Q+ Qb2 Nf6 g8Q Nc6 b8R Na7 b7 Ng4 Ra8 Ba2 Rf1 Ne3 Bf3 Qb6 Bh5 Bf5 Rb1 Rh6 Ndf3 Nb5+ Kd2 c3+ Kd3 c2 Qb3 c1B Nd4 Bg7 Qa4 Nc3 Bd1 Bd2 Nc6 Be5 Rb3 Rh7 b8Q+ Rc7 Qbe8 Rb7 Qh7 Rb8 Nf3 Be1 Rg1 h1B Ng5 h2 Nh3 Bf3 Qeh8 B3g4 f3 h1R Q8g8 Rh2 Qhg6+ Kc7 Qd8+ Kb7 Qh7+ Bc7 Qg6 Rf2 Qh7 Bh5 Qg6 Bd7 e5 Qb2 Qge4 Bf5 e6 Qa1 e7 Be5 Qg8 Kc7 e8B Kd6 Bg6 Ne2 Ne7 Qc6 Qd8+ Bd7 Qed4 c4+ Ke4 c3 Bf5 c2 Qg8 Ba5 Qb2 Kc5 Qd8 Rb5 Qc1 Qb6 Bg4 Bb8 Nc6 Qc3 Qb1 Qd2 Qc7 Rb4+ Ke5 Nc3 Kf6 Qd4+ Ke7 Bf5 Qd8
R3B3/bqbb1QQ1/4N1q1/r1prP2k/p1q4q/1NB3BP/3n1KN1/3q1nR1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 f5 d4 Kf7 e4 Kg6 d5 a5 e5 g3 b6 c3 b5 f3 h3 f2+ Ke2 a4 b7 f4 d6 f3+ Ke3 c2 b6 g2 d7 Nh6 Bb2 c1Q+ Qd2 Ra5 Bc3 Ng4+ Kd3 Nh2 Ke3 Qd1 Bc4 f1Q Bb2 f2 Qd4 Na6 b8Q Nc5 b7 Ne4 Qd5 Qh4 d8N Kh5 Qa7 g5 b8B g4 Bb5 g3 Nf3 g1B Ne6 g2 Bc3 Bd6 Ne1 Rd8 Nd2 Qc4 Nb3 Bd7 Rc1 Nd2 Qab7 c6 Ba7 Bc7 Bc5 Qb4 Be7 Qbc4 Bg5 Qb4 Bf4 Qbe7 Bg3 f1Q+ Bf2 Qfc4 Qf3+ Qcg4 Qf7+ Qg6 Rc2 Qc1 Ke2 Nhf1 Bg3 Ba7 Rg1 c5 Kf2 Qd1 Rb2 Qc4 Qg7 Qeh4 Qf3+ Qcg4 Qff7 Qc4 Nc2 Qb1 Ne3 Qbe4 Rb1 Qb7 Rb2 Bc8 Be8 Rd5 Nbd4 Bd7 Rb3 Qba6 Rb8 Qb7 Nb3 Nf3 Rh1 N3d2 Ra8 g1Q+ Ke1 Qh2 Rg1 Qh1 Kf2 Qf3+ Ke1 Qfg4 Ng2 Qd1+ Kf2
1R6/r3rB1Q/1nbBrN2/p3Bqk1/n3n3/R1p1qP1Q/2PN2rr/N2K1b2 b - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 f5 Ke2 b5 Ke1 bxa4 h4 g5 Bd3 Bh6 Bc4 fxg4 Be2 g3 Ba6 g4 Bf1 Bg5 hxg5 Ba6 Bg2 Bb7 Bf1 Bc8 d4 Kf7 b4 Kg6 d5 e5 d6 a5 b5 c5 b6 h5 b7 e3 d7 a3 Qd4 e2 Qa4 c4 Rh4 a2 Nf3 g2 Nfd2 g1R Rh3 e4 Rc3 g3 Qc6+ Qf6 d8N h4 Ra3 h3 Qb6 g2 Qb2 h2 Rb3 h1B Rg3 c3 Nc6 Nd7 b8B Ba6 Qb3 Nb6 Ba3 Ra7 Be5 Qf5 Qe6+ Nf6 Nb3 Rh2 Nb4 Kh5 g6 Bd3 Re3 Kg5 N1d2 Ba6 Rb1 a1N g7 Bc4 Nd5 Bb5 Nc1 Nb3 Ra1 Nc5 Ncb3 Nca4 f3 Bc6 Kf2 e1R g8Q+ Rg7 Qh7 Ra7 Rd3 Re3 Bad6 Re1 Ra3 e3+ Kg3 e2 Kf2 Ne4+ Ke3 Rc1 Na1 e1R+ Be2 Rb1 Nf6 Rb5 Bg3 Re5 Qed7 Re7 Bge5 Re6 Rd4 Re7 Rb4 Re6 Kd4 Re7 Bc4 Re2 Kd3 Rge1 Ne8 g1Q Nf6 Bg2 Bf7 Rf2 Rbb3 Ree2 Qc8 Bf1 Qe6 Rfg2 Rb5 Nd7 Rb8 Ndb6 Qc8 Qf2 Qch8 Qc5 Qh3 Qg1 Q8h7 Qf2 Bg3 Q2c5 Rh8 Qg1 Rb8 Nf2+ Kd4 R2e6 Bge5 Bd3 Ke3 Ba6 Nc4 Qc1+ Ke2 Qcf4 Ra8 Ne4+ Kd1 Qe3 Nd2 Bf1 Rb8
k3Q2R/2N1B1n1/1r2Q1p1/3PbQR1/q1qRp3/N3nb1B/P2br2q/K2bb3 b - - 0 1 illegal: No possible last move
2b1kB1R/1qR5/1n2NRp1/p2BQP2/n1nb1QKN/5n2/1Br1P3/q2rb2n b - - 0 1 illegal: No proof kernel
2r1nRb1/K1N1r1Q1/1r2BPP1/6q1/8/b1N3bp/1B2QpR1/BkbnRqb1 b - - 0 1 illegal: No proof kernel
1q3R2/4nNrR/2Qp1KNB/r4RP1/r2r1P1k/n1q2b2/2pQrbBn/2N5 b - - 0 1 illegal: No proof kernel
1rq5/6bq/B1P1N1B1/1bp2N2/n1QQrp2/B1nK3R/qNr1P3/qk1Rq3 b - - 0 1 illegal: No proof kernel
4k1r1/2bq1nnQ/2p1b2R/2R2Rq1/1NBP4/1p1BNqNq/rqPK1Q2/4n3 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 a5 Qh5 axb4 Qg4 Ra3 Qd1 Ra8 g4 h6 g6 Qd3 g7 Ra3 g5 Rc3 g6 Ra3 Bb2 Ra8 Bf6 Qd8 Bg5 hxg5 a4 e5 d4 b5 h4 f5 h5 f4 h6 f3 a5 g4 h7 g3 a6 c6 a7 b3 Nc3 g2 Ra3 b4 Na2 b2 Be2 b1Q Rh2 e3 Bc4 e4 Be2 b3 Bc4 e2 Qc1 f2+ Kd2 e1N Nf3 g1Q Rh5 f1Q Ng5 Nh6 g8B Qf3 g7 Bd6 Bd3 Qd7 Bgc4 Qb2 Nb4 Rg8 h8R Na6 Ra5 Bc7 Rf5 Nf7 R8h6 Nc5 Qd1 Qgh1 Qe2 Ne6 Qf2 Qhh3 Rc5 Rf8 g8Q Ng7 Qh7 Rg8 Qg2 Qe7 Qg1 Be6 Qf2 Qd7 Rf5 Rb8 a8N Rb6 Rf4 Ra6 Nb6 Ra2 N6d5 Qc1+ Kc3 e3 Ne4 e2 Rff5 Qg5 Ne3 Ng2 Ng3 e1Q+ Qd2 Qb1 Qf2 Ne1 Kd2 Qb2 Rc5 Qge7 Rhe5 Qg5 Rf5
2Bb4/2k1R1bN/1bp5/r1n3b1/1KPQ2np/Q1N4r/1B1PRqr1/B3qN1b b - - 0 1 legal: proof: g4 d5 h4 b5 e4 dxe4 a4 f6 g5 fxg5 axb5 gxh4 Qf3 h3 Qh5+ Kd7 Qd1 Ke8 c4 Kd7 f4 e5 b4 h5 f5 g5 b6 a5 b7 a4 b5 h2 b6 g4 f6 g3 f7 g2 Nf3 g1B Ra2 e3 Be2 a3 Bd3 e4 Ke2 Be7 f8Q Nf6 Ne1 Ng4 Rb2 a2 Qf6 a1B Ng2 Qf8 Qb3 Ra5 Nc3 Na6 b8B Nc5 b7 Bd8 Qa3 Rg8 Qd4+ Kc6 Kd1 e2+ Kc2 e1B Ne3 Beh4 Nf1 e3 Bf5 e2 Rb3 e1Q Bb2 Bhg5 Rb4 Nd3 Kb3 h4 Ra4 Nc5+ Kb4 Be6 Ba7 Bf7 Bc8 Bd5 b8N+ Kd6 Nd7 c6 Nf6 Kc7 Nh7 Bf2 Rg1 h1R Rg2 Rh3 Rh2 Bh1 Rg2 Bfe3 Re2 Qff2 Qd3 Ne4 Bd4 Rg6 Bg7 Bb6 Qd4 Nc5 Bh8 Rf6 Bg7 Rff3 Bf6 Rfg3 Bg7 Ra7 Ra5 Rg2 Rb5 Ra5 Bh8 Ne4 Re5 Nc5 Re7+ Nd7 Bc1 Bf4 Nd5+ Kd6 Qde3 Nc5 Qe4 Bf6 Bg7 B6g5 Ba1 Be5 Nc3 Bef6 Bcb2 Bg7 Re5 Kc7 Qd4 Rgg3 Re8 Rg2 R8e7+
nnb3N1/2r2q1n/B1pN4/4r1PQ/1Qbp1B1K/1PkqR3/b5b1/1QbB3R b - - 0 1 illegal: No proof kernel
4Bn1Q/1KnNQ2N/Pb1b1R1n/pPpnr1r1/1B2b3/2q1R3/1B4q1/k3n2N b - - 0 1 illegal: No proof kernel
kn2K2b/R2Q4/pqBBP3/2P1Br2/1b6/QbRbNrbR/6p1/1qN3rn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kf2 f5 Kg3 d5 Kf4 Kd7 b4 Kc7 h4 Kb7 e4 g5+ Kg3 a3 c4 a6 e6 f4+ Kg2 a2 h5 d3 h6 g3 Kf3 d4 Kg4 f3 Kh5 g4 Kg6 d2 Kf7 f2 e7 d3 e8Q g2 b5 g3 b6 Bb4 c5 Ne7 e5 Rg8 h7 Nf5 Ne2 g1B h8B Bh2 Qda4 d1B Qa3 d2 Nbc3 Bb3+ Nd5 d1Q Bf4 Qb1 Bg2 f1R Nc1 Rf3 Qd7+ Qc7 Bf6 Ra7 Be7 Ka8 Bd6 Bb7 e6 Rg4 Ne7 Be4 Ke8 Bd3 Nd5 Rb7 Ne3 Rg5 Bf1 g2 Bfe5 Bg3 Rh7 Rh5 Be2 Rh1 Rh3 Rg1 Bd1 Bh2 Be2 Ng3 Bd1 Rf5 Bf3 Nh1 Bd5 Bg3 Bc6 Qc2 Rb1 a1B Rb2 Qb1 Rc2 Bd4 Rc3 Rf3 Bf4 Bh8 Bfe5 Rf5 Bf3 Qc6 Bd5 Rc7 b7+ Ka7 Be4 Qb6 Bc6 Rf3 Qd8 Rcf7 Qc8 Nd7 b8R R7f5 Qd8 Rd1 Qe7 Rg1 Rb7+ Ka8 Qf7 Nb8 Qc7 Ba4 Qd7 Bb3 Ra7#
5Q1N/1RNB1NP1/rnr1QB2/2pb1bK1/r2bp2P/nqr5/q1k5/r1R4B b - - 0 1 illegal: No proof kernel
4KnN1/1Q1PB1k1/qq6/q4p1R/1rr1p2q/b2P2n1/q2nBR2/QbN1N2Q b - - 0 1 illegal: No proof kernel
bqk3N1/2p1r1bQ/6QP/bN1qbB1p/5B2/2r1R1PB/4nQ2/1rRnK2b b - - 0 1 illegal: No possible last move, all moves rejected
r1r1r3/1rpR1P1Q/q2B1kbq/2R4N/nQ3br1/6NN/pPB2nK1/2q2Q2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kf7 Kf2 a5 d4 e5 g4 h5 d5 c3 f5 e3+ Kg2 c2 f6 e4 g5 e2 d6 e1R d7 a4 b6 e3 b7 h3+ Kh2 h4 Qd6 a3 Ra2 e2 Qc5 Bd6+ Bf4 c1Q Bg2 Nh6 Qe5 Na6 b8Q Nc5 Qb6 Na4 Nd2 Bb7 Qf5 Qc8 Qbb5 Be4 Nf1 Qa6 Qb4 Rhb8 Ng3 Rb7 Ra1 Bb1 Be4 a2 Bc2 Rf1 Qd3 e1R g6+ Ke6 f7 Kf6 d8N Re8 g7 Be5 Bd2 Rf4 g8Q Rg4 Ne6 Bf4 Qf1 Rec8 Ng7 Re8 Bd1 Bg6 Bc2 Rac8 Qh7 Ra8 Nf3 Rac8 Kg1 h2+ Kg2 Ra8 Rg1 h1R Ng5 Rec8 Nh3 Rh2+ Kf3 Re2 Rh1 Ree8 Kg2 Rg5 Be3 Ng4 Bc5 Nf2 Bd6 Rg4 Rb1 Qd2 Rd1 Qc1 Rd5 Qd2 Rc5 Qc1 Ng5 h3+ Kf3 h2 Nh3 Nd3 Rg1 h1Q+ Rg2 Qg1 Rd2 Qe3+ Kg2 Qe6 Bf8 Nf2 Rd7 Qe5 Bd6 Qh5 Qb3 Qh4 Qb4 Qh6 Nh5+
BR4Q1/bKpkpP1R/1RBb4/Nb1qr3/4n3/nQ1BP1bb/N1q2n2/3r4 b - - 0 1 illegal: No possible last move
1nq5/npr1bQ1n/1Q2br1k/4KQ2/NNN1p2P/4rP2/1BB5/1rrRqR2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 c5+ Ke5 e3 d4 b3 h4 b2 a4 e2 a5 e1R+ Kf4 e5+ Kg3 e4 Kf4 c4 a6 c3 a7 g3 f3 c2 d6 g2 d7 Ne7 d5 Nec6 d6 Rh6 Nd2 b1R Bb2 c1R Qb3 Re3 Nc4 Be7 Ne2 g1N Nc3 Qg8 d8Q Be6 Qc7 Qc8 d7 Kh7 Qe5 Rf6+ Qf5+ Kh6 d8Q g6 Na2 g5+ Kg4 Nh3 Qdb6 Nd4 Kg3 g4 Nb4 Ndc6 Bd3 Ng5 Kf4 g3 Bc2 g2 Rd1 g1Q Qa2 Nh7 Qb3 Nd4 Ke5 Qe1 Qa2 Nb5 Qb3 Na6 Qa2 Rb8 a8N Na7 Qc6 Rf7 Nab6 Rf6 Na4 Ra8 Qb3 Nb8 Qd5 Nb5 Qc5 Ra6 Qc7 Rc6 Qb6 Rc7 Nd2 Bd7 Qf7 Na7 Nc4 Be6 Ra3 Qh1 Rad3 Qg1 Rf1 Qf2 Rd4 Qe1 Rd1
Q4N2/1pr1Nr1Q/B1pPn3/1NrR4/2q1RnQ1/BP5q/K3n2n/2b1bkn1 b - - 0 1 illegal: No proof kernel
1NqN1nn1/1pPr2np/RP1nrnbR/3B4/r2b4/2k2BK1/3Q1R2/4qQ1N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 d4 c5 b5 cxd4 Ba3 Nh6 Bd6 Ng8 Bb4 axb4 a4 Kf7 c4 Kf6 f4 e5 Kf2 d5 g4 d3 c5 d4 a5 e4 b6 d2 a6 b3 a7 d3 c6 b2 c7 h3 Ra4 e3+ Kg3 h2 Be2 Bc5 Bf3 e2 Ra6 Bd4 Nh3 e1Q+ Nf2 Nd7 Na3 b1N Nc4 Nf8 Ne5 Nc3 Nc6 Nb5 Nb8 Nd6 Qe2 d1R Qf1 d2 g5+ Kf7 f6 Ke6 f5+ Ke5 f7 Be6 g6 Qc8 f6 Bf5 g7 Bg6 Bh5 Kd5 Be2 Kc5 Bf3 Kb4 Nc6+ Kc3 Nd8 Rb8 a8R Ra1 Ra2 d1N R8a6 Ne3 Qe2 Ng4 Qd2+ Kc4 Rb2 Ra3 Ra2 Re3 Rb2 Re6 Rba2 Ra8 Rb2 Nd7 f8Q Ra7 f7 N4f6 Rb5 Ra8 Rh5 Kb3 Rf1 Kc4 Rh6 h1N+ Kh2 Ng3 Nh1 Ngf5 Rf2 Nge7 g8B Ng7 Kg3 Ra7 Qe2+ Kc3 Qf1 Ra8 Qe8 Ra7 f8N Ra8 Bf7 Neg8 Qe7 Re2 B7d5 Re6 Nc6 Ra7 Qd8 Ra8 Nb8 Ra7 Ra1 Ra4 Ra2 Re7 Ne6 Nf8 Qd7 Re8 Nd8 Re6 Ra1 Nde4+ Kf4 Ra7 Qdb5 N8d7 Rfh2 Ne7 Nf7 Nd6 Rf2 Rd8 Qbe2 Neg8 Kg3 Nf8 Ra2 Rd7 Nd8 Ra4 Qd1 Rb4 Ra6 Ra4 Qd2+
4N3/PK2bbpn/r1P1n1qR/1Q1N1q1n/1RN1B1p1/6B1/1Rqn1kn1/1Q2r3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 f4 d5 a4 e5 c4 d3 h4 d2 h5 Ke3 a5 e4 f6 d4 h6 b3 c5 b2 h7 d3 f7 Qd6 c6 Nf6 Kb6 Na6 f5 Nh5 f6 Be6 Be2 Kf2 Rh3 e3 Nc3 b1N Ra3 Nc5 a6 Be7 f8R Bf7 Ra2 Ne6 Rb8 Re8 Bf3 e2 h8Q e1N Be4 Nf3 Nd5 Nfg5 Rb2 Nh7 Nf3 Qe5 Qc2 Qf5 Ne5 Ra7 Qc4 Ra8 Rb4 d1N Bf4 d2 Qb5 Ne3 Nc4 d1Q Rh1 Qc2 Bg3+ Ke2 Qf8 Nd2 Qg8 Ng2 Rb2 Bg6 f7 Ra7 f8N Bf7 Nd7 Qg6 Bd6 Kf2 N7f6 Qc3 Bf3 Nhf4 Qh8 Nhf8 Ra2 Bd8+ Bc7 Nd4 Qb4 Re5 Rc2 Be7 Rc8 Nde6 Ne8 Qcd3 Qa5 Qdf5 Rb8 Re2 Qh2 Nh7 Be4 Ra8 Ra1 Re3 Qh1 Ra7 Qd1 Re2 Ra3 Re1 Rh3 Ra8 Rh6 Nh5 Qb4 Ra7 Ka5 b5 Kb6 Ra8 Qa5 b4 Bg3+ Kf1 Qda1 b3 Rb7 b2 a7 b1Q+ Qb4 Rb8 Rb2 Qc2 Qb1 Ke2 Ka6 Kf1 Qa4 Ke2 R7b4 Rb6+ Ka5 Ra6+ Kb5 Ra5+ Kb6 Ra6+ Kb7 Kf1 Qb5 Ke2 Bf4 Kf2 Bg3+
2qq4/Pr1k1pb1/b1p2nQ1/NbPR4/1bnNB3/1Q2N2B/3nRbBK/5r2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 a5 Qh5 axb4 Qg4 Ra3 Qd1 Ra8 g4 h6 g6 Qd3 g7 Ra3 g5 Rc3 g6 Ra3 Bb2 Ra8 Bf6 Qd8 Bg5 hxg5 Kf2 e5 Kg3 b5 h4 b3 d4 c6 c4 e3 a4 e4 a5 g4 a6 b2 c5 b4 d5 b3 d6 e2 h5 e1Q+ Kh2 e3 h6 e2 h7 Qeh4+ Bh3 e1B d7+ Ke7 a7 Qh6 Na3 b1B Nc2 b2 Nf3 Nf6 Rf1 Bb4 Ra2 Ba6 Ne3 Bbd3 Qb3 b1N Nd4 Bdb5 Re2 Nd2 Rf5 Qc8 d8N Qh4 Nb7 Kd7 Na5 g3+ Kg1 g2 Kh2 Rg8 h8Q Qg5 Qh5 g1B+ Kh1 Bf2 Kh2 Rh8 g8B Bg7 Bh7 Re8 Qg4 Re4 Qg2 Rg4 Qe4 Rg1 Qeb1 Rf1 Q1d3 Bh6 g7 Qh4 g8B Bg7 Bg6 Qh8 B8h7 Qhd8 Re1 Kc7 Qe4 Nbd7 Re2 Rb8 Bh5 Rb7 Bf3 Nb6 Bfg2 Nbc4 Qg4 Ba4 Qg6 B4b5 Qg3+ Ne5 Rg5 Rb6 Bhe4 Rb7 Rf5 Kd7 Qg6 Nec4 Rd5+
1R2r1b1/PK1P1kQ1/1Q3nN1/1qb2B1p/p1q3Br/Q2qR3/2q3NB/2b1nq2 b - - 0 1 illegal: No proof kernel
1Rr3r1/P1rp2Qb/k1q1N3/r2qb1nK/R1B5/3p2r1/nP1Q1NN1/b5BB b - - 0 1 illegal: No proof kernel
2N2RB1/PPB1nn2/5p2/NrQ5/1Q1b1bkp/K1Qn4/B3n1n1/Rr2qbq1 b - - 0 1 illegal: No proof kernel
8/p2K4/1R1B4/2bnN1Q1/rBN1qkrr/B1N2p2/P2Pnq1n/1b1n1nQR b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 d5 f5 dxe4 Bh3 g6 fxg6 Kd7 g5+ Ke8 Bg4 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 c5 b4 f5 h4 e5+ Ke3 c3 b5 c4 b6 g3 g7 g2 g6 c2 b7 f4+ Kf2 f3 Kg3 c3 h5 e3 h6 e2 h7 e1Q+ Kh2 e4 Nh3 Ke5 Qe2 g1N Qd1 e3 Nf4 e2 Ba3 c1R Nd5 c2 Ne3 Qe8 Nf1 Kf4 Bb4 Qe4 Be7 Nh6 g8Q Nh3 g7 Bf5 Ba3 Nd7 Ne3 Nf6 Nc3 Nd5 Nc4 Nf2 Rb1 Bc5 Rb6 Qf1 Qd8 e1N g8N Ng2 Nf6 Nge3 Nd7 Rg8 h8B Rg4 Qe1 Nfd1 Nde5 Qf2+ Kh3 Nf1 b8B Rb1 Qe7 c1N Bd6 Ne2 Bg7 Bg6 Bf8 Rb4 Qd8 Ra4 Bb4 Nh2 Qg1 Nf5 Ba3 Nfe3 Qh4 Bd4 Bdb4 Nef1 Bfd6 Bc5 Qd8 Rg3+ Kh4 Bh7 Kh5 Rg5+ Kh6 Rh5+ Kg7 Rh4 Kf7 Rc8 Qe7 Rg8 Ke6 Rgg4 Kd7 Qed4 Rb7 Bb1 Rb6 Qe4 Qg5+
QBb1q1N1/p1nqR3/4Q2N/rnr3B1/3b4/n1r1P1P1/1pBnKN2/R4n1k b - - 0 1 illegal: No proof kernel
4B3/pB3bnN/q1rR2bN/4Q1Q1/P1n2n2/2p1kNK1/1RPnBrn1/q1r5 b - - 0 1 legal: proof: h4 d5 a4 g5 f4 gxf4 e4 dxe4 g4 b5 b3 b4 g5 Ba6 Ba3 Bh6 g6 Bg5 hxg5 bxa3 Bg2 Bb7 Bf1 Bc8 Kf2 Kd7 d4 Kc6 g7 Kd5 b4 e5 g6 f5 b5 h5 b6 c5 b7 h4 Nh3 c4 Ra2 f3 Ng1 f4 Bh3 e3+ Kf1 Ke4 d5 e2+ Kf2 e1N d6 c3 d7 Nd3+ Kf1 f2 Kg2 f1N Nf3 Qf6 d8Q Bf5 Qc1 Nc6 b8N Na5 Nd4 f3+ Kg1 f2+ Kg2 Rh6 Qd7 Ne7 g8B Nc4 g7 Qa6 Bf7 Rb6 g8B Bg6 Bg4 Nf5 Rb2 a2 Kh3 a1Q Qd2 Ng7 Nbc6 Rf8 Qe7 Nfe3 Qe8 f1N Nf5 Ng2 Nb8 Rd6 Bd1 Rf6 Kg4 h3 Nh6 h2 Qg5 Kd4 Nd7 e4 Kh3 e3 Nd2 e2 Rg1 e1R Be2 Rd6 Nf6 Rc1 Nh7 Rb6 Bd5 Rf2 Bb7 Rc6 Bf7 Ndf4+ Kg4 h1B Qe6 Nh4 Be8 Bd5 Qef6+ Ke3 Nf3 Bdf7 Qfe5+ Be4 Rh1 Ng2 Rg1 Nfd2 Rd1 Nb1 Rd6 Nbd2 Qb5 Bd3 Kg3 Bdg6 Qbe5+
Knq2R2/p2n1R2/rB1P1Bb1/2b1b1pN/1Qq3Q1/QB3P2/6bk/1r3rNb b - - 0 1 illegal: No proof kernel
1b6/n1NQ1R1n/2kq2b1/rr2nnNp/1n1Q2PP/2K2n2/Bpn5/1R3BNB b - - 0 1 legal: proof: d4 b5 b4 c5 f4 e5 a4 exd4 Ba3 g5 axb5 gxf4 b6 Ba6 b5 Bc8 Bb4 cxb4 Kd2 h5 e4 a5 c4 f5 h4 d5 g4 Kd7 b7 d3 c5 a4 e5 b3 b6 f3 e6+ Kc6 e7 a3 e8B+ Nd7 b8Q f4 b7 b2 Nc3 d4 Rh3 a2 Nce2 f2 Bf7 f3 Qb1 Ra5 Bb3 Ngf6 Qc1 Nh7 Rg3 Ne5 Bd1 Bf5 Nh3 Bd6 Nhg1 Bg6 Qa8 Bb8 Qc2 Qd6 Rc1 a1N Qc4 Nc2 Nh3 Nb4 Bc2 Rf8 Qe6 Rf5 Rb1 Rb5 Qa4 Rg5 Kd1 d2 Bb3 Rf5 Neg1 Rg5 Bfc4 f1N Ba2 f2 Rf3 Ng3 Rf7 f1N Qf6 Rf5 Ng5 Nh2 Bf1 Nhf3 Qa7 Rf4 Qe7 Nf5 Ke2 d1N Qe6 Ne1 Kd2 d3 Qe7 Nde3 Kc3 d2 Qd8 Qe7 Qd4 N3c2 Qa4 N1f3 Qa7 Kc7 c6 Re4 Qa4 Re2 Qd7+ Kb6 c7 Qd6 c8B Re4 Qd8+ Kc6 Qa7 Rd4 Bce6 Rdd5 Qd4 Rdc5+ Bec4 Ra5 Bg2 Rd5 Bh1 Rdb5 Bf1 d1N+ Kb3 Nde3 Kc3 N3c4 Qe7 Nb6 Qd8 Bc7 Qe7 Nc8 b8N+ Kb7 Na6 Kc6 Qd8 Bb8 Nc7 Na7 Qd7+
Kb3N2/bn4B1/3nR2Q/2n3Q1/5r2/1NRPB1qp/1RPqbnp1/1Bqk2r1 b - - 0 1 illegal: No proof kernel
1k1B1K2/1R2r3/qNq3q1/nbbRQ3/3q2N1/RPn5/1pnBrpBP/4r2Q b - - 0 1 illegal: No proof kernel
Q1QnB1rB/rbK5/2RNN1q1/N3R3/3r1P2/2P1q1Q1/n1pbq1p1/2b1r2k b - - 0 1 illegal: No proof kernel
n6N/B4KQR/1N1q4/2bB2bN/1Pr1P1np/4q1rq/qB1pb1k1/R1Q1n3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kd3 Ke5 Kc4 Ke4 g4 d5+ Kb3 a5 c4 h5 c5 f3 g5 d3 g6 d4 Kc4 a4 b4 d2 b6 a3 e3 f2 g7 h3 b7 a2 c6 h2 c7 h4 Qh5 d1Q Qe2 f4 Bd2 d3 Be1 f3 Bh3 f1Q Qg2 d2+ Ne2 Qd6 Qf2 Na6 b8B Nf6 g8Q Qg1 Qgg3 Bg4 c8N Qa4 Qf1 f2 Na3 Rg8 Ne7 Nc7 Ba7 Rc8 Ng6 Bf3 Bg2 Ng4 Rc1 a1B Nef4 Bf6 Nh5 Bg5 Nh8 Bfe7 Bd4 Qa7 Bb2 Na8+ Kb5 Rc2 Nc4 Qa2 Nb6 Rc4 Rc3 Bf8 Ra3 Rg6 Ra7 Rg8 Rh7 Rg6 Qe2 f1N Qd1 Qf2 Rg1 h1Q Qc1 Qh3 Bh1 Qe2 Bf2 Nfh2 Bg2 Qe7 Qc7 Qd6 Qg7 Qed3 Qcc3 Qe2 Ra1 Qe1 Qc1 Bfe7 Bf1 Be2 Bg2+ Nf3 Bg1 Qeg3 Bf2 Kd3 Bg1 Ne1 Bd5 Qf2 e4 Ke3 Nd7 Kf3 Nb6 Qfg3 Bc5 Kg2 Bf2 Qb8 Bc5 Bd6 Kc6 Qe3 Kd7 Qc7+ Ke8 Bf8 Bcd4 Bc5 Be5 Qd6 Kf7 Qc6 Bb8 Qd6 Ba7 Rf6+ Ke8 Rf3 Be5 Rg3 Kf7 Rd4 Bf6 Rc4 Bb2
1B1n1Q2/1N3R2/2n1q2B/rb6/kPqp1N2/1QpP4/2RnN1Kb/rqR1q1b1 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 b5 Bd3 bxc4 Bc2 f5 exf5 a4 Bb3 axb3 Kf1 h5 f4 e5 g4 d5 a4 Kd7 d3 Kc6 f6 h3 f5 h2 f7 c3 g5 e4 f6 h4 g6 d4 a5 Kb5 g7 c5 a6 h3 a7 c4 Qe1 b2 Qe3 c2 Ra3 c3 Qg3 e3 Ra6 e2+ Kf2 e1Q+ Kf3 Qd7 Bh6 c1B Qf2 Be3 Ne2 Ne7 g8Q Nec6 Ra2 Qe6 Nd2 b1N Nc4 Nd8 Rc2 Nbc6 Nd6+ Ka4 Nb7 Bd6 f8N Bd7 f7 Qc4 Qfg2 Bg1 Ne6 Be5 Bf4 Rh5 f8B Bb8 B8d6 Ra5 Bh6 Bc7 Qf2 Nd2+ Kg3 Qb1 Qff8 Qba2 N6f4 Qe6 Qg5 Qac4 Be5 Be3 Rd1 h1Q Rdc1 h2 Qg6 Qe1+ Kg2 Bf2 Qg3 Bg1 Qf2 Ne7 Bd6 Bb5 Be5 Nec6 Bd6 Rb8 a8R Rc8 Ra7 Ra8 Bc5 Be5 Bd6 h1Q+ Kg3 Qe4 Bb8 Qh7 Kg2 Bd6 Nd5 Bdh2 Ndf4 Qhf7 Nd6 Qff6 Rf7 Qh4 Nb7 Qhg4+ Ng3 Qgd1 Nge2 R8a7 Rb2 Qdb3 Rbc2 Qb1 Qe8 Nb3 Qf8 R5a6 Rd2 Ka3 Ng3 Ra4 Rb2 R7a5 Qc2 Nd2 Nge2 Qa1 Qb1 Qaa2 Rbc2 Qb2 Bg5 Kb3 Qa1 Qb1 Bh6 Ra2 Qb2+ Ka4 Qc5 Ra3 Qf8 Ra1 Qb3+
1QNNQ1R1/2q1n2n/B1n1b2K/qr1b2P1/2pp4/R1bk4/Nr1BqP2/Q5n1 b - - 0 1 illegal: No proof kernel
2R1rN1q/1rQ2B1q/rn1R1b1k/n3Q1pq/Rn4bP/4PQBr/N3pK2/8 b - - 0 1 illegal: No proof kernel
6kB/4N1Nq/nQB1R3/5pb1/3pPrb1/1b2qQ2/4rnBP/KbrQ2Rq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 g5 c4 a5 Kc2 d5 e4 a4 b4 g3 Kb2 g2 b6 f3 b5 g4 c5 d3 c6 d4 b7 g3 c7 f2 b6 a3+ Ka2 d2 Nf3 g1Q Bb2 g2 Ba6 f1B Bc1 Be7 Ne1 Kf8 Nc3 Qd7 Nc2 Bg5 Nd5 Rh4 Nce3 Nf6 Bb5 Bd3 Ne7 Rf4 Bc6 Na6 b8Q Ng4 b7 Nf2 N3f5 f6 Qf3 d1B Ng7 Kf7 Rb1 Bb3+ Ka1 a2 Qa7 Qf1 b8Q g1Q Qab6 Kf8 Rb2 Bb1 Q8b7 Qg3 Rg1 Qgh3 Qd1 Qe3 Rc2 Qfe1 Rc5 Qf5 Re5 Qh7 Re6 Bd7 c8B Ra7 Rd6 Bg4 Re6 Qf1 Ba3 f5 Bd6 Qg2 Be5 Qh1 B8d7 Kf7 Bb5 Ra8 Bf1 Rc8 Bf6 Rc2 Bg2 Re2 Bc6 Kf8 Nd5 Kg8 Q7c7 Rf3 Qg3 Rf4 Qf3 B1c2 Kb2 a1R Be5 Rc1 Ne7+ Kf8 Bf6 Bb1+ Ka1 Kf7 Nh5 Kf8 Bh8 Kf7 Ng7 Kf8 Nc8 Kg8 Ne7+
R1Qb4/B1Nb2nK/4qQn1/k1P5/3NBr1n/RP4r1/2qrq1pp/2NnR3 b - - 0 1 illegal: No possible last move, all moves rejected
R1qQ1b1N/4nbqR/r1B2b2/1PBnp3/pB3R1r/1kQP1r2/1n3n2/2KN4 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kf7 g4 Ke6 b4 Kd5 b6 c5 b7 e5 g5 a5 b5 h5 g6 c3 f5 a4 f6 c2 f7 c4 g7 c3 Qe2 h3 Qf3 h4 Be2 h2 Ra3 h3 Qf5 e3 Qh7 Be6 Bh5 Kc4 Ra2 e2 Rb2 Nf6 g8R Qe7 Bg4 Ra6 Nf3 Nc6 b8Q Nd5 Ng5 Qb7 Qf5 Nce7 Bf3 Rh4 Qd8 Qd7 Ra2 Kb3 Ba3 c1B Bc5 c2 Nc3 Qb7 Rf1 h1R Nd1 h2 Qh3 Rf4 Be4+ Rf3 Bb4 Ba3 Ra1 Bg7 f8B c1Q Nf7 Bf6 Nh8 Qcc8 Rc1 Qbd7 Rc7 Bf7 Ra7 Qg4 Rg7 Qg1 Rh7 Qg7 Ra8 Rd3 Kf2 e1N Ke2 Rf3 Qg3 Nd3 Qe1 Nb6 Bc6 Nb2 d3 Nbd5 Kd2 Rg1 Ba5 h1N Kc1 Rg4 Bb4 Nf2 Bc5 Rh4 Bb4 Ng8 Bfc5 Nge7 Qc3+ Ka2 Ba7 Ng4 Bg1 Re3 Qd6 Nf5 Rf4 Rf3 Bd4 Nf2 Ba5 Bb4 Qd7 Bf8 Bb4 Nfe7 Qe8 Be6 Bdc5 Bf7 Qe1 Kb3 Qd8 Nb6 Qd2 Nbd5 Qc3+
B2B1b2/2KQ1Q2/b2nBQqR/p6q/rqN1PP1p/1q1r1N2/2kn3n/R3r3 b - - 0 1 illegal: No proof kernel
1N4rQ/1K4nn/4B2P/1Rq2R1b/bbQ1prkq/2B2Pbq/2N2pN1/5r1Q b - - 0 1 illegal: No possible last move, all moves rejected
1B3nbK/2Q1N3/3n1rrP/2q1k1BR/1p1PbN1b/Q2R4/2qpBnbq/1N6 b - - 0 1 illegal: No possible last move, all moves rejected
1nb2RQR/1r1BN1K1/1Qq1r1bp/5kb1/6N1/BP1nqn2/2p4P/nr2RB2 b - - 0 1 illegal: No possible last move
b6Q/qB3q2/2n4p/P3nr1R/1N5r/1qpRr2b/R1PQ1Bb1/Q1KN1k1q b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Bg2 Bh6 Bh3 fxg4 Bf1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bf5 Ne2 Be6 Ng1 Bc8 d4 Kd7 Kd2 Kd6 f4 Kd5 a4 c5 f5 e5 a5 b5 g6 g2 f6 e3+ Ke1 Ke4 f7 g3 f8Q e2 Kd2 e1R d5 b3 g7 c4 d6 b2 d7 b4 Qf6 b3 Na3 b1B Qe6 b2 Rh6 Qe8 d8R Ne7 g8Q Nec6 Rh1 Qf7 Nb5 Nd7 Na3 Re3 Rh3 Ba2 Qh5 b1B Qf6 c3+ Kd1 Bd5 Qe6 Bba2 Ne2 g1Q Qg7 g2 Rb1 Qh1 Qf8 g1Q Nf4 Kd4 Rb8 e4 Qeh6 Nde5 Rb2 Qgg7 Rh2 Bh3 Nc4 Rb8 Nd3 Rb5 Qg8 Qa7 Nb4 Qgf7 Qg1 Bg2 Rg8 Be6 Bd3 Beh3 Rg3 Bb3 Ra2 Rc5 Nd2 Bd5 Ba6 Nf3 Qd6 Nd8 Nc4 Bf5 Bd2 Bg4 Qf1 Rd3 Bb5 e3 Qe6 e2+ Kc1 Ba8 Ne3 Rf5 Be1 Nc6 Qeh6 Nfe5 Bf2 Ke4 Qd1 Kd4 Kb1 e1Q Q5g5 Ke4 Qhf6 Qeg1 Rh6 B4h3 Ba6 Qf1 Bb7 Qe2 Rg4+ Kf3 Qf1 Qd2 Rd4 Qe2 Qg1 Qd2 Qc1 Ke2 Nd1 Kf1 Rd5 Qe2 Qgd2 Re3 Qb2 Qd3 Qa1 Qc4 Kc1 Qb3 Rd7 Rd8 Rh4 h6 Rd3 Rd4 Rh5 Rh4 Qh8
2N1b2n/q2nB3/r1N3PK/1rb1P3/rpkr1Q1Q/4R1bB/2p1q1RN/R1n5 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5+ Kh5 c5 d4 f5 a4 b5 g4 f3 e3 f2 g6 c3 g7 c2 a5 b3 g5 f4 g6 b2 a6 f3 a7 c4 Qe2 c3 Ra5 Qe7 Bh3 f1N Bg2 Nh6 g8Q+ Nf7 Rh4 Nd7 Qg7 Ng3+ Kg4 h5+ Kf4 Qc5 Rg4 h4 Qf1 h3 Ra1 h2 Bh3 h1R Qf6 f2 Na3 b1R Nc4 Rh4 Ba3 c1B Nd6 c2 Nf3 Nh8 Kg5 Ne2 Rg2 Rg1 Qe1 f1Q Nh2 Bb7 Qff2 Bc6 Nc8 Kc4+ d5 Rd4 Qf4 Bd6 e4 Be3 Bb4 Nc1 Qh4 Qe2 Kh6 Bf2 e5 Bg3 Ba3 Qb6 Bb4 Bc5 d6 Qc7 Ra3 Ra1 Re3 Ra4 Ba3 Rb8 a8R Qa7 Bb4 Rb6 Ba3 Rba6 Bb4 Rd1 Ba3 Rd3 Bb4 Rb3 Ba3 Nb8 d7 Rbb4 d8N Be8 Nc6 Rb2 Bb4 Nd7 Ba5 b4 Bd8 Rba2 Be7 R4a5 Rb8 Rb5 Rb7 Nb6 Rd7 R2a4 Rd6 Nd7 Rd5 Re4 Rd1 Rd4 Rh1 Nd3 Rb1 Nc1 Ra1
Nbn1qR1b/1bB2Nqn/5RPq/P7/4pr2/KB1Q3r/B2p2n1/1Qk1N1n1 b - - 0 1 illegal: No possible last move, all moves rejected
1bq4r/Q1N2Kb1/R4QPp/1nN1r2B/1QRBp2P/B3q3/n2b2r1/1kr4q b - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 e4 a5 f4 gxf4 d5 Be6 d6 Bd5 exd5 axb4 Ke2 Kd7 Kf3 b5 Kg4 c5 Kf5 e5 g4 b3 a4 h6 h4 b4 g5 e4 a5 c3 a6 f3 g6 c4 a7 b2 Qb3 c2 Qa4+ Nc6 Bg2 b3 Bf1 f2 Na3 b1Q Bb2 c1B Be2 f1Q+ Bf3 c3 Ne2 c2 Qb4 Bd2 Qa5 c1B Nc3 Qbd3 Ncb1 Bg7 Nb5 Qc8 Qa2 Nb4 N1a3 Ne7+ Kg4 Nf5 Rh3 Qe3 Bd4 b2 Qc4 b1R Nc3 Qh1 Nab5 Na2 Na4 Rb2 Nc7 Re8 Rg3 Re5 Qb4 Rb8 a8Q f6 Bb6 Nd4 Qa7 Nb5 Bd4 Rc2 Rg1 Bb2 Rgc1 f5+ Kh5 f4+ Kg4 Ra8 Be2 f3 Nc5+ Kd8+ d7 Ke7 d6+ Kf6 Bd1 f2 Be2 f1R Bd1 Nac3 Ra6 Na2 Bf3 Ba1 Be2 Rb2 Rc4 Rc1 Bf3 Be1 Be2 Bg3 Bf3 Rg2 Be2 Bc3 Bf3 Qe8 Be2 Bd2 d8Q+ Qe7 Qh8 Qe8 Bf3 Qc6 d7 Bh2+ Kh3 Kf5 d8B Kf4 Be7 Rc8 Qd8 Qa8 Qd6 Rh8 Qe6 Qee1 Bh5 Qc8 Bb2 Ke3 Qf5 Bg3+ Kg4 Ke2 Bd4 Kd1 Qe6 Qe3 Bd6 Rc3 Qf5 Kc2 Bf8 Re6 Qf6 Kc1 Kf5 Rc2 Bb2+ Kb1 Bd6 Rc1 Ba3+ Qb3 Be5 Bgf4 Beb2 Qe3 Bd4+ Qb3 Na8 Bb8 Nc7 Bf8 Qd8 Re5+ Kf6 Bg7+ Kf7 Re1 Bab2 Qe3 Qf6 Rc1 Ba3+
q5rb/2Qn1B2/5RpQ/NP1pq1Q1/br2PNqB/b7/r2bRR2/n4K1k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 Ke7 c4 Ke6 b4 Ke5 h4 d5 b6 a5 c5 f5 h5 d3 h6 g6 h7 a4 c6 g3 b7 g2 c7 f3 Nd2 Kf4 Be2 Kg3 Qc2 a3 Nb3 f2+ Kd2 f1R Qc4 a2 Nc5 f4 Qc3 f3 Qb3 f2 Bg4 Na6 b8R Nf6 Rb6 Rg8 h8Q Bd7 c8Q Ba4 b5 Nd7 Ba3 Rb1 Qc6 f1Q Qh7 Qff6 Qh6 Qe5 Nh3 g1B Qc7 Kg2 Be6 Nb4 Bf7 Nc2 Nb7 Bh2 Qbc4 Rb4 Rae1 a1B Na5 Bf4+ Kd1 d2 Ke2 Bc3 Rhf1 Na1 Rf6 Ra7 Qd4 Qa8 Qe3 Kh2 Rf3 d1Q+ Kf1 Kh1 Rf2 Qg4 Ree2 Bb2 Qg3 Bd2 Qgf4 Bg7 Qfg5 Bbc1 Bb2 Bh8 Bd4 Ba3 Be3 Qc6 Bf4 Ra6 Bg3 Qa8 Bh4 Rc6 Qe3 Rc2 Qeg5 Ra2 Nf4
Nk1QB2q/R3B1rq/3R1Pn1/Pp4B1/6qr/3r1Q1N/3b1p1n/2Rqnb1K b - - 0 1 illegal: No proof kernel
1rN3bK/q1rBkBN1/4np1P/7R/1pQnq2r/2b3RP/5n2/Q2b1NBn b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 d5 Kf3 g5 a4 b5 c4 g4+ Kf2 g3+ Kf3 g2 e4 d3 a5 d2 e5 d4 Ke4 f3 a6 f6 h3 b3 c5 f2 a7 b2 c6 d3 c7 Qe7 e6 Nc6 Kf5 Rb8 Kg6 Nd4 a8Q Nh6 Ne2 g1Q+ Ng3 Nf7 Qc2 d1N Ra5 d2 Qc4 Ng5 Nf5 b4 Be2 f1N Bg4 Bh6 Ng7+ Kf8 Rc5 Ng3 Qa1 Nf2 Re5 d1B Nd2 b1R Nf1 Ba6 Be3 Rc1 c8N Rc2 Rh2 Ngh1 Rg2 Qb7 Bf5 Qe4 Rg3 Bb7 Rc5 Bd5 Rb5 Ra2 Rc5 Ra7 Rb5 Rc7 e7+ Kg8 e8B Kf8 Rc5 Bg8 Bf7 Nge6 Rb5 Nd3 Bf2 Bd2 Be3 Bc3 Ra5 Qgg2 Bg1 Ndf2 Re5 Qb7 Ra5 Qa7 Bg4 Rb5 h6 Rh5 Rf5 Rh4 Rh5 Qc6 Bf3 Qe8 Bc6 Qe7 Bd7 Qe8 Nd6 Ke7 Nc8+ Kd8 Rc5 Ng5 Bf5 Qe4 Nd6 Ke7 Rb5 Qg4 Bd7 Qe4+ Rf5 Nge6 Nge8 Nd8 Kg7 Bh7 Rd5 Rf8 Rh5 Bg8 Kh8 N8e6 Ng7 Rb8 Nc8+
1r1b1n1q/1q4Q1/RQ1RP1n1/B2R3k/2BN1p2/1NqN3q/P2b3p/1K1br2r b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 g4 f5 e4 Kf7 d4 Kg6 Kd2 h5 Kc2 b5 e5 c5 g5 f3 d6 b3+ Kb2 f2 d7 c4 d5 f4 d6 h3 Rh2 b4 Ne2 h4 Qe1 Qf6 d8Q Ne7 d7 Kh5 Rg2 h2 g6 h1Q g7 h3 g8N Ng6 Nbc3 Be7 Nb5 c3+ Kb1 b2 Qb6 Bd8 Kc2 b1R Ne7 Bb7 e6 Bf3 Nc6 Bg4 Na5 b3+ Kd1 b2 Kc2 Rh6 Bd2 Qh8 Rg1 Qf3 Nbd4 Qb7 Nc1 Bd1+ Kd3 c2 Rg3 Qc8 Nab3 Qc5 Ba5 Qc3+ Ke4 Rh7 Bc4 f1Q Nd3 c1B Re3 Bd2 Qg3 Rc1 Qg2 b1Q Rg3 Bf6 d8R Nd7 Re3 Ndf8 Rd6 Rb8 Rd5+ Ne5 Qg7 Bd8 Rd6 Qbb2 Rb1 Neg6 Rg3 Kh4 Rg5 Rh5 Rc5 h2 Rcd5 Qh3 Qb5 Rg5 Ra6 Kh5 Qb6 Bg4 Rd6 Rh1 Rg1 Rb5 Rg3 Bd1 Rg5+ Kh4 Rgd5 Rb4 Ne5 Kh5 Nd3+ Kg4 Nbc5 Bg5 Ne5+ Kh5 Qbb7 Bd8 Qc6 R4b7 Qcc7 Qb5 Qc6 Rf7 Ncb3 Rf5 Qcb7 Qcg3 Qbc7 Qb7 Qb6 Be3 Kd3 Qf3 Ng4 Re5 Nf2 Qfg3 Kc3 Bd2+ Kb2 Qe3 Kb1 Qc3 Nf5 Re2 Nd3 Ree1 Nfd4+
Bb2r2N/R6n/4P1rr/2pn1b2/q1Q1q1Bp/Nr2b1RP/R1Nn3K/2k4Q b - - 0 1 legal: proof: c4 e5 a4 d5 b3 dxc4 Qc2 b5 axb5 e4 Kd1 e3 Bb2 exf2 Bf6 gxf6 Kc1 f5 Qd1 f4 g4 Ke7 e4 Kd6 d4 a5 Kd2 c5 Ke2 f5 Kf3 h5 Kg2 c3 e5+ Kd5 h3 Ke4 g5 Ke3 b4 h4 b6 f3+ Kh2 c2 g6 c1B d5 f4 d6 a4 d7 a3 b5 a2 g7 Bd6 b7 Qe8 d8N Nc6 b8Q Nf6 g8B Rh6 b6 Nh7 b7 Bf5 Nd2 Ne7 Be6 Nd5 Bg2 f1R Ne2 f2 Nd4 f3 Nf7 Rg1 Nh8 f1R Nb1 f2 Na3 Qc6 Qf8 Re8 Qg8 Bb8 Qe1+ Kd3 Ndc2 Be3 Bf3 Rg3 Rg1 Rgg6 Rg3 Rg1 Qf1+ Kd2 Qg2 Rc1 Qh1 Rb1 Bc8 Rb3 Qe6 Nb4 Qc4 Qe4 e6 Nd5 Bg4 f1Q Bd7 Qff3 Bc6 Qff4 Rb1 a1N Rb2 Nhf6 Ra2 Nh7 Qcf1 Qa4 Qa6 Qfe4 Qc4 Bd6 b8R Bc7 Bd1 Kc1 Rb7 Bb8 Rf7 Rb6 Ra7 Nb3 Bb7 Nd2 Ba8 Rb3 Bg4+
4qbq1/Q1NR4/2nP1rr1/2NRRQ1B/1qbB1p1P/1b2p2K/1k3r2/nq4Q1 b - - 0 1 illegal: No possible last move
2BbN1KR/1k2r1B1/b1RPP2R/b1pNn1pQ/6r1/5q1n/q3Nn2/2bQr3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 c5 e4 Kc7 b4 a5 h4 f5 e5 g5 d5 a4 e6 c3 d6+ Kb7 b6 c2 h5 g3+ Kf3 g2 h6 a3 h7 a2 b5 Nh6 Qd3 Nd7 Qd1 Ra7 Bb2 c1B Bg7 Ng4 Rh6 Be7 Nc3 Nf2 Nd5 Qc7 Bc4 Bd8 Ne2 Rf8 Rb1 a1B h8Q Bc3 Ra1 Rf7 Ra6 Re7 Qe8 B3d2 Qh5 Ba5 Bd3 Qb8 Bc2 Qa8 Ba4 Kb8 b7 g1N+ Kg2 f3+ Kg3 Ne5 Rb6 Ra6 Rc6 Ka7 b8N Kb7 b6 Ngh3 Nd7 Qa7 N7f6 f4+ Kh2 Ne4 Ne8 f2 Kg2 f1R Kh2 f3 Bb5 Nef2 Kg3 Kb8 b7 Re1 Ba4 Qa8 Bb5 Ka7 b8R Rb6 Ba4 Ba6 Rbc8 Rb4 Rb8 Nfd3 Bb5 f2 Rbc8 Nc4 Kg4 Nce5+ Kf5 Rg4 Kf6 Kb7 Ba4 Nf3 Kg6 f1Q Kh7 Nfe5 Kg8 Ndf2 Rb6+ Ka7 Bd7 Qg2 Rcc6 Qh1 Rb4 Qf3 Rf4 Kb7 Rh8 Qa7 Rf6 Qb6 Rg6 Qb1 Rgh6 Qa2 Bc8+
1Q1kN1rq/1q2b2N/1r1p3n/3B2n1/P1p1NB1K/3RQrPQ/4b3/2nbR1r1 b - - 0 1 illegal: No proof kernel
3B2Qn/R1bQkbn1/2Pqq3/1nN3pb/Rqr1rp2/B2n2Q1/R4PK1/N7 b - - 0 1 illegal: No possible last move
2Rr4/3b4/2P1N3/B1ppqr1R/Br1q1B2/4bP1R/nrbn1Q2/QNn1K1k1 b - - 0 1 illegal: No proof kernel
NK1B4/QbNQ2r1/2pRr1Bq/4n3/1q1b1qk1/2r3P1/r1BRP1bp/2n1Q3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 a4 h5 d4 f5 g3 h3 a5 c6 d6 b3 d5 b2 a6 h4 a7 b4 d7 h2 d6 b3 Be3 h3 Bc1 Nf6 Na3 b1Q Qe1 b2 Qf2 Rh6 Ke6 Qc7 Nb5 Bb7 d8Q Na6 d7 Bg7 Qe1 Kg4 Qb8 f3 d8Q f4 Bg2 f2 Ra2 f1R Qd7 f3 Bg5 f2 Be4 Nb4 Nf3 Nd3 Nd2 Qf4 Nc7 Nc1 Bc2 Rh7 Rg1 h1Q Nc4 Bh8 Nb6 Rg7 Bh4 h2 Bg6 Qh6 Bg5 Qhe4+ Kd6+ Qf5 Rh1 Qe4 Rg1 b1R Rd2 Rb3 Rh1 Rc3 Bh4 Nh7 Bd8 Ng5 Rg1 Nf3 Rh1 Bc8 Rg1 Ne5 Qb7 Rb8 a8B Qb1 Qa7 Bb7 Nb5 Qe4 Kc7 Qb4 Rh1 Rg1 Rd6 f1B Rd2 Ba6 Bb7 Bg2 Bc8 Bb7 Na8 Rf1 Rd6 Rff3 Rf1 Rfe3 Rf3 Re4 Rfd3 Re3 Rd2 Re4 Nd4 Ree3 Ne6 Qff4 Bc2 Re4 Qe7 Ree3 Bd7 Re4 Be8 Ree3 Qd7 Re4 Nb6 Ra8 Bg6 Ree3 Qb8 Ra2 Qa7 Ned3 Kb8 Re5 Nc7+ Re6 Nc8 Ne5 Nb6 Rh7 Na6 Nc4 Bh4 Bd4 Nc7 Ne5 Nba8 Rg7 Bd8
1bN2q1N/3r1Qbq/N1p1P2r/kB3n2/2Rr1p1r/P2n2q1/1Q2b3/1K1BB2R b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 d4 Kd7 Kd2 Kc6 Kc2 Kb5 e4 f5 g4 h5 g6 h4 e5 c6 d5 h3 a3 h2 g7 f3 g5 f2 g6 b3+ Kb2 Qh4 d6 Rh6 d7 Na6 d8Q Ne7 g8N Nb4 g7 Ra7 e6 Nd3+ Kc3 b2 Kc2 c3 Qe1 Qg3 Qd6 Ka5 Bd2 b5 Qf4 b4 Ne2 Ba6 Qc1 Rd7 Be1 Bb5 Nd2 b1R Qb2 Rd1 Rc1 b3+ Kb1 c2+ Ka1 Rd4 Ne4+ Rd2 Nc5 Ba6 Bh3 f1Q Bg4 Bb5 Na6 Rh4 Rd1 c1B Kb1 Rd7 Qf3 Qff2 Nf4 Rh6 Qc2 b2 Ng6 Qc5 Bh5 f4 Nh8 Nf5 Ne7 Bc4 g8B Bg7 Nc8 Qf8 Qe2 Be5 Qe3 Bb8 Qa7 Rd4 Qf7 Bb5 Rg1 h1R Bh7 Rh4 Rh1 Rd7 Bf2 Bc4 Rdg1 Rd1 Be1+ Bd2+ Qc1 Bc3 Rg2 Bb5 Rc2 Rd2 Bd1 Bg7 Rc4 Rd4 Ka2 Rd7 Kb3 b1Q+ Qb2 Qc2+ Ka2 Nc5 Re4 Be2 Rc4 Nd3 Bg6 Qb3+ Kb1 Qb7 Bh5 Qa7 Ba4 Rd4 Bb5 Qae7 Qf6 Qef7 Bg4 Q7g8 Qe7 Qh7 Qf7 Rd7 Rb4 Ne5 Qg8 Bc4 Bf3 R2d4 Bd1 Be2 Qf7 Nd3 Rc4+
3KR2k/2nb1B2/1PRNqN2/1nr1p3/bpr2b2/N1B1Q2r/qP5r/R1q4Q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 h4 c5 h5 cxd4 h6 b4 Be2 Qa5 Bd3 Qb5 axb5 gxh6 Bc4 h5 Bf1 h4 Ke2 Kf7 f4 Kg7 g4 h5 c4 a5 c5 d5 c6 h3 c7 h2 b6 a4 f5 a3 g5 e3 Kd3 a2 g6 e2 Bg2 e1Q Bd2 h4 Nh3 Na6 Rg1 h1Q Bf3 Bd7 c8N Nh6 Nf2 h3 Bh5 h2 Rf1 Nc7 Bg5 Ra5 Qc1 Qe6 Qe1 Rc5 Bc1 Nf7 Ne4 Nd6 Qe3 Ndb5 f6+ Kg8 Bd2 Bh6 g7 Bf4 Bg6 Rh3 Bf7+ Kh7 Rf2 Qc1 g8R h1R Ncd6 R1h2 Na3 Rc4 Rg6 Kh8 Re2 Rc5 Bc3 Rc4 Rb1 a1Q Re1 Qa2 Ra1 Rc6 Be8 Rc4 f7 Rc5 f8Q+ Qg8 Nf6 e5 Reg1 Rc4 Qe7 Qe6 Qd8 Rc5 Qa8 Rc4 Qb7 Rc5 R1g2 Rc4 Bf7 Rc5 Ke2 d3+ Kf2 d4 Qbe4 Rh6 Kf3 d2 Qb7 d1B+ Ke4 d3 Rc2 R6h3 Rh6+ Kg7 Rh8 d2 Re8 Be2 Qc6 d1R Qd5 Rg1 Qd1 Rg4 Qh1 Bd1 Rb1 Qeb3 Ra1 Ne6 Kf5 Qd5 Ng8 Kh8 Kf6 Nec7 Ke7 Qe6+ Kd8 Rgh4 Rd2 Ba4 Rd5 Rc4 Rc5 Rc2 Rc6 Rc5 Be1 R2c4 Bd2 Rh2 Bc3 R4h3 Nf6+
4Qb1q/2R2B1k/qPb2NR1/1qpNbrQ1/3N1B1n/p4r1n/6P1/K1n2Q1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 a5 Kd2 h5 Kc2 c5 e4 f5 b4 Kf7 Kb2 Kg7 d5 h3 b6 f3 b5 c3+ Ka2 h2 b7 f2 d6 f4 b6 a4 e5 a3 d7 c2 e6 f3 e7 h4 e8N+ Kh7 Bh6 c1B Qb3 h3 Be2 f1Q Nc7 f2 Bf4 Nh6 Be5 Bb2 Bd3+ Nf5 Qc4 Na6 b8Q Bb7 Ne2 Bc6 Bf4 Be5 Ne8 Nb4+ Kb3 Rg8 Nd4 Na2 Nc3 Rg5 Rd1 Nc1+ Kc2 Qf6 Kb1 Qh8 d8Q Qe2 Rhf1 h1N Ka1 h2 Nd5 Ra4 Rfe1 f1Q Rd2 Rg3 Qg5 Rf3 Qb5 Ra8 Bc4 Nf2 Rd3 h1Q Qbd8 Rh3 Rg3 Nh4 Rg4 Rf3 Rd1 Nh3 Qde7+ Qg7 Nef6+ Kh8 Bb3 Qg8 Qa6 Qb5 Qe8 Ra7 Rd2 Rf7 Re2 Bed6 Re6 Be5 Re7 Qh7 Rc7 Qh5 Nd7 Rf5 N7f6 Qfc4 Qa4 Qa6 Qb5 Qca4 Qf1 Q4b5 Ne3 Qh7 Bf7 Qg7 Ned5 Qg8 Qh5+ Qh7 Rg6 Qh6 Nd7 Kh7 Qg4 Qg7 Qg5 Qh8 N7f6+
KRrR4/Q2q1b1N/rP4Qp/q4P2/p1n5/B3n1n1/N1kbNnBr/3b3Q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 a5 c3 e5 f5 h6 g5 a4 b6 d3 Ke3 Kc4 g6 d5 b5 d4+ Kf2 h3 g7 h2 b7 e3+ Kf3 e2 Ke4 e1N b6 Nc2 Ra2 Kb3 c4 d2 c5 d3 c6 Ra6 c7 Nc6 b8Q Bb4 Qe1 d1N Ne2 d2 Ra1 Qd7 Qa7 Nce3 Rg1 h1R Nbc3 Na5 Na2 Kc2 Bg2 Rh2 Ba3 Nac4 Qg3 Ba5 Qg6 Bc3 Rb1 Ba5 Rb5 Bb7+ Rd5 Nf6+ Kf3 Bb4 c8Q Ne4 g8N Ng3 Qca8 Nf2 Nf6 d1B Nh7 e4+ Kf4 Rc8 Rd6 Nd2 Ke5 Ndc4+ Kd4 Bd5 Qc6 Qe8 Rd8 Bd2 Kc5 Bf7 Kb5 Qe7 Qcb7 Ra8 Kc6 Rc8+ Qc7 Qd7+ Kb7 Qe6 Qcb8 Qd7+ Ka8 Nd5 Nec1 e3 Re1 e2 Rg1 e1Q Ne2 Rc6 Qb7 Nde3 Rb8 Rc8 Rf1 Nh3 Rf4 Nf2 Rd4 Bc1 Rd6 Qa5 Rd3 Bd2 Rd6 Qc6 Rd8 Qd7 Qf3 Nh3 Qf1 Nf2 Qh1
3Q1rB1/2nq4/Pr3bKN/1q3Nbp/1n1Qb3/kBq4P/Q2qp3/2R1RnN1 b - - 0 1 legal: proof: e4 a5 c4 f5 f4 g5 b4 axb4 Bb2 d6 Be5 d5 cxd5 fxe4 f5 Na6 Bd6 Nb8 Bf4 gxf4 Ke2 Kd7 a4 Kd6 g4 Kc5 f6 e5 f7 b5 d6 h5 g5 f3+ Ke3 f2 d7 b3 d4+ Kb4 a5 c5 a6 c4 g6 b2 d5 c3 h3 c2 d6 c1B+ Nd2 b1Q g7 Bb7 Bc4 f1N+ Kf2 e3+ Ke2 e4 Ra2 Nc6 Bd5 Be7 f8N Bf6 Nc4 Nge7 g8B Qd3+ Ke1 e2 Kf2 e3+ Kf3 e1Q Kf4 e2+ Ne3 Qdc3 Ng6 Qed2 Nh4 Rb8 Rc2 Ka3 Nf5 b4 Nh6 b3 Bdf7 b2 Bb3 Qc8 d8Q b1Q d7 Nd5+ Kf5 Nc7 Kg6 Nb4 Nef5 Be4 Qe8 Rb5 d8Q Rb6 Qe6 Qcd7 Qf7 Bb2 Rc1 Bg5+ Qff6 Qbd3 Qc2 Q3b5 Qd6 Qcd3 Qc4 Bbf6 Qdd4 Q3c3 Nf3 Nh2 Rhe1 Nf1 Qcd5 Rc6 Ng1 Rb6 Bf7 Rf8 Bg8 Qcc5 Q5c4 Qcc6 Qc2 Qcc3 Qa2+
2n1Nb2/2Rq3q/pn1PbB2/QqPB1q1Q/1Qr3b1/p1N2r1B/5nK1/4k1R1 b - - 0 1 illegal: No possible last move, all moves rejected
3Rr2q/Q1rqq1qP/K3B3/3N1r1Q/3Pnp2/b4bbR/k3QBp1/3nRN2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 Ke2 f5 h4 c5 e5+ Kd5 e6 g5 e7 a5 e8Q a4 d3 f3+ Ke3 c3 h5 a3 h6 f2 b6 a2 b5 c2 h7 g3 b7 g2 b6 c4 Na3 g4 Qa4 g3 Qe2 c3 Qe1 Ra7 Qe8 Ne7 Qd1 Nd7 b8Q Bb7 Be2 f1R Nb1 Nc5 Qa8 Qd7 Nf3 g1Q+ Kf4 Ne4 Bd2 c1B Rh2 c2 Qh5 Ba3 Rh3 c1Q Be3 Qc5 Bf2 Bc6 Qd2 Rc7 b7 Bg7 b8R Re8 Nh2 Be5+ Kf3 g2 Qa7 Bg3 Qe3 Qd4 Qd2 Qg7 Ke3 Qh1 Bg4 Qh8 Bg1 Rf4 Bf2 Qe1+ Qe2 Bb7 Qa8 Kc5 Qa7+ Kb4 Rc8 Kb3 Nc3 Bd5 Rd1 a1Q Rd8 Bc6 Nd5 Qag7 d4 Bb7 Nf6 Nd5+ Kd3 Ne3 Nf1 Ba8 Rc1 Nd1 Nd5 Qb4 Ra1 Qbe7 Rc1 Ne3 Re1 Nd1 Qf3 Bc6 Qe3 Ka2 Kc4 Rf3 Qd3 f4 Bf5 Re3 Be6 Re2 Qe3 Rf8 Qef3 Rf5 Qfg4 Re3 Qe2+ Kb1 Qef3 Nf6 Nb4 Qef8 Bf7 Re8 Qe2 Qfe7 Be6 Ba8+ Qc5 Bf3 Nd5 Qdd6 Kb5 Ne4 Ka5 Qdd7 Qa7 Ka1 Ka6 Kb1 Qd3+ Ka2 Qe2+
Q5bb/n1N1k1rP/2bpnr2/1r1PqB2/p2Rq2Q/Nq3BRB/7K/1R1r4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 Ba3 exf4 axb5 c5 b6 Rh7 b5 Rh8 Bb4 cxb4 Kf2 g5 Kg2 a5 c4 f5 h4 d6 e4 g3 d4 a4 d5 b3 c5 f3+ Kh3 b2 e5 f4+ e6 f2 b7 g2 h5 g4+ Kh2 f3 c6 g3+ Kh3 Qe7 c7 Nc6 b8Q Rh7 h6 Na7 b6 Bg7 b7 Bh8 Ne2 g1Q Nbc3 b1Q Qd4 g2 Nb5 Nf6 Ra2 Ne4 Ra3 Rg7 h7 Nc5 Nec3 Qe4 Nb1 Kf8 Be2 Qd1 Kh2 Qb3 Rd1 f1B Qf6+ Ke8 Qh4 g1R Rd4 f2 Bf3 Qf6 e7 Ne6 Ra1 Be2 N1a3 f1R Rb1 Kf7 e8B+ Ke7 Bc6 Bd7 Qg8 Rb8 c8B Be8 Nc7 Bf7 B6d7 Bb5 Qe1 Bc6 Qh4 Nf8 Bh3 Ne6 Bd7 R1g6 Bf5 Rd1 Qc8 Bg8 Bh3 Ra8 b8R Qg5 Rb5 Rf6 Qb7 Re8 Qa8 Rb8 Rc5 Rb5 Rc3 Nf8 Bdf5 Ne6 Bh5 Qgf4+ Rg3 Qfe5 Bf3
2r4k/1rBBB2P/p1RK2b1/r3nP1q/NnR1N1Q1/4b2p/1qn3N1/Q4rq1 b - - 0 1 illegal: No proof kernel
3r1rb1/3nNq1p/NnQqnBQ1/1R1p3R/5bB1/3nr3/1k1K1P1P/2R3Nb b - - 0 1 illegal: No possible last move
2N1qBq1/5Q1p/bbn2R2/1N1p1rk1/2qQ1nBP/1nB1b3/bPN4K/r1R5 b - - 0 1 legal: proof: e4 b5 d4 g5 f4 gxf4 a4 c6 d5 cxd5 axb5 dxe4 Ra2 e3 Ra4 Ba6 Ra1 Bc8 c4 f5 g4 Kf7 h3 Kg6 c5 a5 g5 e5 c6 d5 b6 e2 Kf2 e1B+ Kg2 a4 c7 f3+ Kh2 e4 b7 f2 Nc3 a3 Bf4 e3 Bd3 f1B Ne4 a2 Qc1 e2 Qd2 Bc5 Bb5 Bb6 Bd6 f4 Qd1 f3 Be7 f2 Qd4 Nc6 b8B Nf6 Rc1 a1N Nc3 Qg8 Nf3 Ba6 c8N Nh5 Bf8 Nf4 Be5 Bd2 Ne1 Be3 Nc2 e1Q Be2 Nb3 Bg4 Bfc4 Nb5 f1Q Rg1 Ra7 Rg3 Rf7 Rf3 Rf5 Bf6 Nba5 Be5 Ba2 Rf2 Qc4 Beg7 Kf7 g6+ Ke6 Bf6 Nb3 g7 Kf7 Be5 Kg6 Rf1 Kg5 Rf2 Qf7 g8Q+ Qg6 Qf7 Qg8 Bd1 Qee2 Beg7 Qh5 Bg4 Qg6 Bb4 Qe8 Bc3 Rg8 Bf8 Rg7 Qg8 Ra7 Qf7 Qg8 Re2 Bd2 Re6 Be3 Rf6 Bb7 Nbd6 Bb1 Rh1 Ra1 Nb5 Ba6 Rc1 Ba2 h4+
1q1NN2r/4Qnrp/3p3k/q1n1qrQ1/2B2R1B/b4PnN/Pn2QKb1/R7 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 Kf7 g4 Kg7 c5 e5 c6 b5 g5 h3 g6 h2 c7 e4 f3 d3 Ba3 b3 f6+ Kh6 g7 e3 f7 d2+ Ke2 b4 Nh3 b2 Qc1 d1N Qc2 b3 Qf5 Ra7 Bc5 Na6 Ke1 e2 Na3 b1R Qg4 b2 Bf2 Nc5 Bh4 Qe7 Qe4 Qe5 Nb5 Rb7 Rg1 h1N Nd4 Ng3 Ne6 Rc1 Qd3 b1Q Nd8 Nb2+ Kf2 Rc4 Qd1 Rf4 Qc2 Be7 f8Q Rf5 Qd3 Bd6 Qe7 Ra7 Qd1 Ba6 c8Q e1Q+ Kg2 Bb5 Bc4 Qa5 Kf2 Rb7 Re1 Ba6 Re4 Ra7 Bb3 Bf1 Rf4 Bg2 Qc2 Nb7 Qd2 Ba3 Bc4 d6 Qe2 Nc5 Qce6+ Kh5 Q6d7 Nh6 g8N Nf7 Nf6+ Kh6 Ne8 Qc2 Rd1 Qb3 Ra1 Qb8 Qde6+ Rf6 Qg4 Rf5 Qb7 Ng5 Qbe4 Rg7 Qb7 Nf7 Qa7 Rh5 Qe7 Rf5 Qgg5+
4rB2/2n1q1P1/rq3q1R/n1B1bq2/6B1/2Q1r1p1/pQ1bNPRN/R2K1k1b b - - 0 1 illegal: No proof kernel
2Rq4/Q4rPk/n1b1nBb1/n1N2N1p/1q2Q1R1/3p1B2/1P1b4/1Kn1qQrR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 g4 d5 c4 f5 Kc2 Kf7 e4 Kg7 c5 a5 c6 a4 c7 a3 e5 f3 e6 a2 b6 h3 e7 d3+ Kb3 d2 Kc2 d4 e8R d3+ Kc3 f4 g5 h2 b7 f2 g6 f3 Qa4 d1Q Re2 Bf5 c8Q Nf6 Qa6 Qe1+ Nd2 Bb4+ Kb3 Ne4 Nc4 Ng5 Bg2 f1N Qce6 f2 Rc2 Ng3 Ne5 f1Q Bf3 Bd2 Qa7 Ne2 Rc8 Rg8 Nd7 Na6 Qe4 Ne6 b8Q Qff2 Qb5 Qfb6 Nc5+ Qb7 Rb1 a1N+ Ka2 Nb3 Ra1 Na5 Kb1 Rf8 Ra4 Rf7 Qbb6 Kh6 g7 Bg6 Qc7 Qb5 Qcf4+ Kh7 Qff5 Qb3 Qh3 Qb4 Qf1 N2d4 Ne2 Ndb3 Qe7 Ra7 Nd4 Rc7 Nf5 Rc6 Rg1 h1B Qa7 Rd6 Rg4 Rd5 Ra1 Re5 Qc4 Re2 Qd5 Rg2 Qe4 Rg1 Ka2 Bc3 Bg5 Bd2 Bf6 Bg2 Rd1 Nc1+ Kb1 Bf4 Rd2 Bh1 Rh2 Bd2 Bd1 Bg2 Rh1 Bf3 Qe3 Be4 Bf3 Bc6 Qe4
QrbBRK2/2n2Pr1/1bN3q1/k5q1/r3P3/1q1Rn1Qp/2p3N1/2QBnr1N b - - 0 1 illegal: No proof kernel
5Qq1/B1N1bP1k/brQr2B1/3r1BpP/4Rpn1/2R1b2K/3qbRN1/3q1n2 b - - 0 1 illegal: No possible last move
1r1b4/1bQ2P1p/Rnb1b3/3rN2N/1rR1P2B/1qnp4/BknqR3/5KQB b - - 0 1 illegal: No proof kernel
1Q5b/5PPr/rqBNq2B/1R4r1/p1bp3Q/Nb2k1n1/2n2nb1/RK2RB2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 c4 Kf5 Kc2 a5 b4 e5 c5 d5 c6 h5 c7 a4 g3 h3 b6 h4 b5 d3+ Kb2 h2 b7 h3 b6 e3 g4+ Ke4 f5 d4 g5 d2 f6 e2 f7 e1Q g6 Ke3 Bd3 e4 Qc2 Bg7 Na3 Rh7 Bf1 Be6 c8B Ra6 Bc4 Bh8 g7 Nf6 Rb1 Nh5 Nb5 Ng3 Nf3 Nc6 b8R Nb4 b7 Qb6 Qd1 Nc2 Bf1 Bc4 Ra1 Qe2 Rg1 h1N Ne5 h2 Qe1 Nf2 Kb1 h1B Bd7 Bf3 Bc6 Bg2 Qd1 Qe1 Qg4 Qe2 Qh5 Qg4 Qh4 Qe6 Bb2 d1B Na3 Kd2 Rh1 e3 Rg1 e2 Rh1 Bb3 Nec4+ Kd3 Nd6 Ke3 Rg1 e1R Rh1 Re2 Bc1+ Rd2 Rc8 Be2 b8Q Bb5 Rc7 B5c4 Rb7 Qc5 Rb5 Qb6 Be8 Kf3 Rg1 Re2 Rh1 Re5 Bh6 Rg5 Bc6+ Ke3 Be2 Ra5 Re1 Ra6 Bf1+
1n4B1/2bRP1n1/2n1b1rq/bk2qP2/1B1p2N1/2rQ2p1/NK3bqN/2R3RQ b - - 0 1 illegal: No proof kernel
7q/1Rr1P1QQ/B1r3NP/n2brbB1/4p2K/3p1R2/2qbNnb1/3k1nQB b - - 0 1 illegal: No proof kernel
3n2KQ/R2qP3/1qk2pp1/BrN1R1n1/6b1/4r2q/n1rQ2PB/1bQq2NB b - - 0 1 illegal: Other
2Kb2qB/Rr2p3/Nb2Pp2/r2qQ3/1RP1n2n/3Q4/B1bb1B2/N2kqR1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 g5 d4 gxf4 Qd2 c5 Qd1 cxd4 Kd2 d5 Kd3 Kd7 c4 Kd6 b4 Ke5 e4 a5 h4 f6 h5 f3 b6 f2 b7 a4 b5 g3 h6 a3 b6 a2 h7 g2 Rh6 Na6 b8R Nc5+ Kc2 d3+ Kc3 d4+ Kb4 d2 Kb5 Kf4 Kc6 Ke3 b7 d3 e5 Ne4 Rh1 Bh6 Qb3 Ra5 Qc3 Bf5 Be2 f1Q e6 Qe1 Nh3 g1B Ba3 d1N Ng5 Ndf2 Nd2 Bh2 Rf1 Nh1 Bd1 Bc7 Ba4 Ke2 Nb3 d2 Bc5 d1Q Bf2 Qf8 Qd4 Bd8 Kd7 Qf7 Qd6 Qd5 Kc8 Qf8 Nf7 Bg6 Ne5 Bd2 Nd7 Nh6 Ndc5 Nf5 Na6 Nh4 Qe5 Rg8 h8B Bf5 Qc3 Rg3 Qe5 Qg8 Qd6 Rc3 Qg3 Rc1 Qd3+ Kd1 Rb1 a1B Ra8 Qe8 b8Q Qg8 Qe5 Bd4 Ra7 B4b6 Rb2 Rc3 Na1+ Rc2 Rb3 Rb2 Rb4+ Rb3 Qdd4 Neg3 Qc3 Bbe3 Rbb7 Bc2 Qd3 Ne4 Rb6 Rbb5 Bb3 Bc5 Ba2 Rb2 Rd6 Rb7 Rb6 Bd4 Rb2 B4b6 Rb4
2qn1Q2/BNQPr1Q1/4B3/4rR2/Kn3b2/p1N1Rbb1/1PB4p/2b1qknr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 d4 Ke6 Kd2 c5 Kc2 a5 g4 h5 b6 f5 d5+ Ke5 g5 h3 g6 c3 Kb3 h2 d6 c2 g7 c4+ Ka3 h4 b7 c3 Be2 a4 Bg4 f3 Be3 c1B Bc5 Kf4 d7 Kg3 e5 Kg2 e6 c2 e7 f2 e8Q f1N Qd6 h3 Nc3 f4 Bb6 f3 Bc5 f2 Nf3 Nh6 g8B Rh7 Qb6 Na6 b8Q Bb7 Nd1 Ng3 Q6a7 f1Q Qf4 Re7 B4e6 Qe1 Bb3 Qc8 Nc3 Nb4 Nd4 Bf3 Nc6 Nf7 Qe5 Nd8 Qac7 Bf4 Qg7 c1B Bc2 Ra5 Rf1 h1R Ba7 h2 Be6 Re5 Rf2+ Kg1 Re2+ Kf1 Re3 Ne2 Na5 Ng1 Nb7 Bd2 Rd1 Bc1 Rd5 Bg3 Qh7 Bg7 Qf8 Bh6 Qhg7 Bhf4 Ra5 Re4 Rh5 Re5 Rf5 Nd5 Ka2 a3 Kb3 Nb4 Ka4
2rB1qNR/qR1PPrQQ/1q1p2K1/7r/2nqBbnk/2n5/1R2Np1B/5b2 b - - 0 1 illegal: No proof kernel
3Q1K1n/q2PpB2/4Bk1p/2qB1rqn/R2R2q1/1r6/1N1bQN1P/2nQr2b b - - 0 1 legal: proof: e4 b5 b4 c5 f4 d5 a4 dxe4 Ba3 g5 axb5 gxf4 b6 Nh6 b5 Ng8 Bb4 cxb4 Ke2 f5 d4 Kf7 g4 a5 c4 b3 d5 f3+ Ke3 f4+ Kd4 e3 Kc5 e2 b7 e1R d6 f2 d7 f3 g5 b2 b6 a4 g6+ Kf6 g7 a3 Nh3 a2 Rg1 Ra3 Bd3 f1Q Qe2 f2 Kd5 Nh6 g8B Qc7 c5 Rb3 c6 Qg2+ Be4 f1N Nf2 Qg4 Bf7 Na6 b8Q Ng3 b7 Nc5 Nd2 b1Q Nc4 Nh5 Nb2 Qc1 Bf5 Nd3 B5e6 Qd2 Rg3 Nc1+ Rd3 Qdf4 Rd4 Qfg5+ Bf5 Qb6 c7 Bg7 Qa7 Rf8 b8Q Bh8 Qa4 Bb7+ Kc4 Be4 c8B Bh1 Bb7 Qd6 Qd8 Qa3 B7g6 Nf7 Be6 h6 Bf3 Bg7 Bfd5 Nh8 Bgf7 Qd6 Qb4 Qb6 Qbd2 Qd6 Qdd1 Qde5 Rb1 a1Q Kc5 Qa4 Ra1 Qa2 Kc6 Qef5 Kc7 Qa4 Qe8 Qa7+ Kd8 Qc2 Raa4 Qcc5 Bg8 Rf7 Qf8 Kg6 Ke8 Rf5 Qec2 Be5 Bgf7+ Kf6 Qce2 Bf4 Qg8 Bd2 Kf8 Rf4 Qh7 Rff3 Qhe4 Rf5 Qec2 Qd6 Qc7 Qdc5 Qd8
nR2KB2/2kp4/Nnr2r1q/1QR3BB/bN4qb/b2P3P/p2NQq2/1n4b1 b - - 0 1 illegal: No possible last move
4bR1q/1KpQ4/1B4N1/1k2NBb1/4p1nN/P1Qr2Qb/rqR2rP1/2n2r1n b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 b5 Kd4 e5+ Ke3 h5 d4 b3 f4 h3 f5 b4 f6 b2 d6 Kc6 f7 b3 d7 h4 Qf3 h2 Ba6 h3 Nd2 b1Q Bf1 b2 Bd3 Bh6+ Qf4 Bg5 f8N Nf6 Ng6 Na6 Nc4 Kb5 d5 Rf8 d6 Nc5 Nf3 Nb3 Rf1 h1R Nfh4 h2 Rf3 Rf1 a3 h1N Ra2 Ra4 Bd2 Nc1 Ba5 Rf7 Bb6 Qh8 d8Q Bh3 d7 Ng4+ Kd2 e3+ Kc3 e2 Qdf6 e1R d8Q Re3 Qg3 Re2 Bf5 e4 Nce5 Rd4 Qg7 Rdd2 Qgf6 Rfd7 Qde7 Ref2 Qed6 Rc2+ Kd4 Qa1 Kd5 b1B Rf4 Qb2 Qg7 Rce2 Qc3 Bc2 Qh7 Ka4 Kc6 Bd1 Kb7 Kb5 Qg8 Ba4 Qdd2 Rd3 Rf3 Qb1 Rc2 Qb2 Qg7 Bb3 Qf4 Bf7 Qg3 Red2 Be6 Be8 Rf8 Rde2 Bf5 Qb3 Rb2 Red2 Rb1 Ra2 Rb2 Qb4 Rc2 Qb2 Qd7+
4nq2/B1p1Qr1B/1N5k/1PP2N1q/5r2/1Bqr2Q1/Rp2bnR1/2RnnbK1 b - - 0 1 illegal: No proof kernel
3R4/KQp4r/8/1pP3Pb/Q2n2bq/RbqNqrn1/1BB3Nn/1k2qNR1 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h4 g5 Bg2 Bh6 Bh3 fxg4 Bf1 g3 Ne2 g4 Ng1 Bg5 hxg5 Bf5 Ne2 Be6 Ng1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 h5 c4 e5+ Ke3 Kc5 f4 b3 d4+ Kb4 a5 b2 f5 h4 f6 g2 c5 h3 a6 h2 f7 g3 f8N Nf6 a7 Nh5 d5 Bg4 d6 Nc6 d7 Qf6 d8R Rh7 Qd7 Kb3 Ra2 Kc2 Qe6 Nd4 Ne2 g1N Qe7 g2 Ra4 Ngf3 Nd2 b1B Qd6 Ba2 Ng6 Bb3 Qc6 Ng3 Rg1 h1B Nef4 Nh2 Be2 Rc8 Nf1 Kb1 Kd2 e3+ Kc3 e4 Bd1 e2 Kb4 e3 Ka5 e1Q+ Ka6 e2 a8Q Qc3 Ba3 e1Q Ne5 Qh6 Ka7 Qh4 Bb2 Qee3 Qcb7 Rb8 Rd5 Rf8 Ra3 Rff7 Ned3 Rf8 Nh5 Rf3 Nhf4 Qee1 Ka6 Bh5 Rd8 Rf2 Ka7 Bg8 Kb8 Bgf7 Qa4 Bb3 Ne3 Rf1 Ka7 Rf2 Rf1 g1Q Rg8 B1f3 Rd8 Bfg4 Nfg2 Qe2 Re1 Rf3 Rf1 Qgf2 Rg1 Qfe1 Nf1 Qe3 Bc2+
BQ2R1rR/BPq1PqnR/8/bQ6/r5pr/3r3k/bN3BpN/1bqn2K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 g5 c4 a5 b4 d5 b6 d3 e5+ Kf5 c5 a4 b5 f3 e6 g3+ Ke3 Kg4 b7 f5 h5 d4+ Kd2 f4 Ke1 a3 h6 g2 Kf2 d2 h7 a2 b6 d3 c6 Na6 b8R Bb4 e7 Nf6 c7 Nc5 Be2 Nh5 Qf1 d1R Qe1 d2 Bd3 Na4 Bc2 Ba5 Nc3 Bf5 c8Q Nb2 Nce2 Qc7 Nc3 Ng7 Qe5 Rg8 Rb1 a1R h8B Ra4 Qb5 Be6 Qd8 Ba2 Rh7 Rd4 Na4 Rd3 Nh3 Rh1 Ng1 d1B Be3 Rh4 Qd6 Ra6 Re8 Ra7 Bb3 Bc2 Bd5 Ra8 Rc1 Bcb1 Qdb4 Ra6 Ba8 Ra7 b7 Ra6 Ba7 Nd1+ Ke1 Kg3 Nb2 g4 Rc5 Kh2 Rch5 f2+ Ke2 Kg3 Nf3 Kh3 Q4c4 Bc3 Qd4 Ra4 Nh2 Ba5 Qdb6 Rc3 Qd6 f1Q+ Kd2 Qh1 Ke2 Rd3 Qd8 Qg1 Qb8 Qgc5 R5h6 Qc1 Bf2 Nh5 Bc3 f3+ Ke1 Ng7 Rh8 Q1f4 R6h7 Qf7 Ba7 f2+ Ke2 Rg3 Bcd4 Rc3 Kd2 f1Q Bf2 Qg1 Ke2 Rd3 Be1 Ne3 Bg3 Qgc1 Be1 Qh5 Kf2 Qf7+ Kg1 Nd1 Bef2
bb1B1N2/rpn3r1/R4QQQ/Rb6/N1b1K1nq/2p2PB1/r1Pq1N2/k1q5 b - - 0 1 illegal: Other
B5Q1/Npbr1n1K/Rb2r3/2B1nP1Q/2N1N1r1/rR1BPk2/p1bq4/4qn2 b - - 0 1 illegal: No proof kernel
R2kqN1Q/Bp5R/Q7/np1r3B/2q1rBqn/3Pr1n1/n1RP2b1/K4Nb1 b - - 0 1 legal: proof: f4 d5 b4 h5 g4 hxg4 b5 e5 b6 exf4 Kf2 axb6 Ke1 d4 Bh3 b5 Bf1 d3 cxd3 Ra7 Qa4 Ra6 Qd1 Ra8 h4 g5 e4 c5 a4 f5 h5 g3 h6 g4 a5 f3 h7 g2 e5 f4 a6 f2+ Ke2 c4 a7 c3 e6 c2 e7 f3+ Ke3 g3 Rh5 Nc6 Rh2 Bh3 Na3 Na5 Nc4 Nh6 Bb2 c1N Be2 f1R Ne5 f2 Nd7 Re1 Kd4 f1N Kc3 Nf5 Qa4 Nh4 Nf3 g1Q Ra2 g2 Kc2 Qe3 Kb1 g1Q Be5 Qd4 Rc2 Qgg4 Bf4 Qc4 Ka1 Ng3 Qa2 Bh6 Nf8 Bg2 Rh1 Rg8 h8B Rg5 Bd4 Rd5 Nh2 Qb8 Bd1 Re3 Nf1 Qe5 Qa4 Na2 Rh3 Rad8 a8R Qb8 Bf3 R8d6 Bd1 Rde6 Ba7 R6e4 Qa3 Bg5 Qd6 Qbc8 Qa6 Qb8 Ne6 Kd7 Nf8+ Kc8 e8Q+ Bd8 Qh5 Bb6 Qh8 Kd8 Bf3 Qbc8 Bfb8 Qce6 Rh1 Qe8 Rh3 Ng6 Rh7 Nh4 Bd1 Rf3 Be2 Bg1 Bd1 Rfe3 Bf3 Qge6 Bh5 Qg4 Bf4+
nRN1N1B1/1pq3P1/1pb3b1/5PQR/5B2/k2nK3/rrb2N1b/q2B1Qrq b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 b4 cxd4 h4 gxh4 b5 Kf7 b6 axb6 Bb5 Ke8 Bc4 Nc6 Bf1 Nb8 Ke2 d5 f4 Kd7 a4 Kd6 c4 Kc5 g4 Kb4 c5 h5 c6 e5 a5 e4 a6 d3+ Kf2 h3 a7 h4 c7 d4 f6 e3+ Kf3 e2 f7 e1Q g5 d2 g6 h2 g7 d3 Bg2 h3 Nc3 Bf5 c8B Bg6 f5 Nc6 Qc2 d1R Ra3 d2 Qd3 Bd6 f8Q Nf6 Be6 Nd5 Qf1 Nc7 Ne4 Ne5+ Kf4 Rh7 Qf6 Nd3+ Kf3 Bg3 Nd6 Qe5 Ba2 Qa1 Bg8 Re1 Nc8 d1B+ Ne2 Qd7 Ke3 Bc2 Bf3 Rd1 Nf4 Qf7 Rg1 h1B Qg5 h2 Nh3 Bd6 Be2 Bc6 Nf2 h1Q Rc3 Rd2 Bd1 Bh2 Rg3 Rh4 Rh3 Rg4 Rh5 Rg1 Rc5 Qd7 Re5 Qd8 Re8 Qd6 Bb2 Ka4 Be5 Ka3 Rf8 Rb8 Bf4 Na8 Ne7 Rd8 Re8 Rd7 Rb8 Qc7 Nc8 Rd4 Qe2 Ra4 Qf1 Ra5 Qh4 Rb5 Qhh3 Bb3 Qg3 Ra2 Qh4 Bc2 Qg5 Rbb2 Be6 Qd7 Bg8 Nc7 a8N Ne8 Nc7 Qe7+ Ne6 Nc7 Rh6 Qd8 Rh5 Na8 Nc7 Qd7 Ne8 Qd8 Bf7 Qc7 Bg8
1N2k3/P4bRN/2r3R1/8/qB1Pn2p/2pK1nrB/rBr1Qq1q/1nbR1Q2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 b5 Kd2 h5 g4 f5 a4 c5 e4 f3 e5 b3 a5 h3 e6 f4 e7 f2 g5 b4 g6 b2 g7 f3 a6 c4 d6 h2 Nh3 b3 Rg1 h1Q Ke3 c3 Rg5 h4 Rf5 Nf6 g8Q Qh2 Qg7 Qa5 Qg2 Rg8 Rg5 Qa4 Rg6 Nbd7 Ng5 Ne5 Nh7 Be6 Nd2 b1N Ne4 b2 Nc5 Bf7 Nd7 Ne4 Qe2 Bg7 Nb8 Bh6+ Qg5 Rg7 Bh3 f1Q Qf4 f2 a7 Nf3 Kd3 Qfg2 Qfe3 f1R Qg1 Qf2 Qg2 Rg1 Qgf1 Rg8 Rg7 Rg2 Rg6 Na3 Rg7 b1R Bb2 Rc1 Rb1 Rc2 Rd1 Bd2 Rg6 Bc1 Rg7 Bh5 Rg6 Nb1 d7+ Kf7 d8B Ke8 Rg7 Bf7 Ba5 Rg3 Bb4 Rf8 Nc6 Rc8 Nb8 Rc6 Rg6 Be6 Rg7 Rf5 Rg6 Ra5 Rg7 Qb3 Rg6 Ra2 Rg7 Qa4 Rg6 Kf7 e8R Bd5 Rc8 Bb3 Rc7+ Ke8 Rcg7 Be6 B2a3 Bf7 Bb2
N7/P3N3/3R1Q2/bpqQ3b/2r1Qnr1/Bkb1rP2/pR2N2n/K1n1q1bB b - - 0 1 illegal: No possible last move, all moves rejected
1BRb2r1/P1N2n1b/pr1n2R1/k1Qr2Br/B2QN1qp/n2q4/7P/bR5K b - - 0 1 illegal: No proof kernel
n6b/P4k1p/NqN4Q/RR3nNr/KP1B2q1/1B2bR1q/2rQ1q1p/3b3r b - - 0 1 illegal: No proof kernel
Bn1r1r2/PPr2N1r/p5pk/RN1b3q/1R1K2B1/bb5n/4q2Q/2n1R1BQ b - - 0 1 illegal: No proof kernel
1RQB1rRB/pr2q1NK/3P1b1N/5p1r/3bq3/P2Qn1qR/5rn1/1k3b1N b - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 bxc5 gxf4 g5 h6 Be2 h5 Bg4 hxg4 Kf2 Kd7 c4 Ke6 d4 Kf5 h4 e5 c6 b5 d5 b4 h5 b3 g6 e3+ Kg2 Ke4 g7 f5 d6 g3 Kh3 b2 a3 e2 c7 e1Q h6 g2 c5 f3 c6 f2 h7 f1R Nf3 g1B Qb3 Nf6 g8Q Bd4 Bg5 Bg7 Qe8 Nd5 Nc3+ Kd3 Rb1 Ba6 c8N e4 c7 e3 Ne7 e2 c8R Rf2 Kh4 Ne3 Kh5 Nc6 Kg6 Bgf6 Rh3 Ng2 Ng8 Nb4 Nh6 Nc2 Ne4+ Qc3 Ng3 e1Q Qd5 Nce3 Nh1 Kc2 Qc4 Rf8 h8B Qe7 Qec6 Qe4 Kh7 Bb5 Q4d5 Bf1 Bh4 Rb8 Ng5 Rb7+ Qd7 Qc7 Ne6 Qec3 Bg5 Qd8 Rb8 Qe7+ Ng7 Qe1 Rd1 b1R Qc8+ Qc3 Re1 R1b3 Re2+ Kb1 Qdc4 R3b4 Qd3+ Nc2 Ree3 Rb3 Qd2 Bfe5 Reg3 Qe8 Bd8 Qe7 Rh4 Bf6 Rgg4 Qh3 Rg6 Rg3 Qd3 Rg5 Rh5 Qg3 Rh3 Rh5 Rg5 Rb6 Rg6 Q7e6 Ne8 Rb7+ Qc7 Q6e5 Rg8 Qe6 Ng7 Qe7 Qe2 Nce3 Qc8 Bb2 Qa6 Bbd4 Qd3+
K7/p3Q1Np/2R1P1q1/nr2NbBQ/1b2qn2/3r1R1P/2R1n1k1/1Bnq1bB1 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 Kf7 Kd3 Kg6 Kc4 Kf5 Kd5 g5 f4 g3 c4 Kg4 c5 b3 b6 b2 b7 d3 f5 g2 f6 d2 f7 Qf6 h3+ Kg3 e4 g4 c6 Bb4 f8R Qg6 c7 Nc6 b8B Na5 Qe2 d1B Nf3 g1N Na3 b1Q e5 d6 Rf6 Bf5 c8Q Bb3+ Nc4 Ne7+ Kd4 d5 Qd8 Ba2 Nd6 Bc4 e6 Qc2 Ke5 d4 Ne8 d3 Rh2 d2 Ng7 d1Q Bg5 Nd5 Rc1 Nf4 Qe7 Rd8 Bc7 Bcd3 Bb6 Rab8 Rf7 Qb1 Rc6 Ba6 Qb5 Rd3 Rhc2 Nge2 Bg1 Nc1 Qbc5 Rb5 Rf6 Rd2 Bd3 Kg2 Kd6 g3 Kc7 Kh1 Rb2 g2 Ne5 Qbc2 Be4 Rd3 Rf7 Qc4 Rc2 Qd5 Qf2 Qd4 Qf3 Qe3 Qh5 Qef3 Bb6 g1N Kb8 Nge2 Ka8 Kh2 Bg1+ Kg2 Bd5 Qe4 Ba2 Bd6 Rf8 Bb4 Bb1 Rd6 Rc8 Rc5 Bf2 Ng3 Rd8 Bf1 Rd7 Nge2 Bg1 Rb5 Rd8 Rd4 Rd5 Rd2 Rdc5 Rd4 R5c3 Rd6 Re3 Rd3 Rf3
Qnn1q2q/p1PBN2R/Q3K3/1r6/5BBr/1N1Qp2q/nkq1RP2/1r1bb3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Ke6 g4 Kd5 c3 h5 b6 e5 b7 d3 Ke3 Kc4 g5 d5 g6 h3 b5 h2 g7 h4 b6 d4+ Kd2 e3+ Ke1 e2 Kd2 e1R Be2 e4 Bg4 h3 Ra2 Rh4 Nf3 Ne7 g8B+ Be6 Rc2 Kb3 c4 Nc8 c5 Qe8 c6 Bb4+ Nc3 Bf7 Bh7 Bh5 c7 Rg1 Bd7 Rg5 Bg4 Rb5 Bhf5 Ba5 Bd7 Bb4 Ke1 d2+ Ke2 d3+ Ke3 Ba5 Qf1 d1Q Kd4 d2 Qd3 Qe2 Ra2 d1N Bf4 e3 Nd5+ Nc3 Ne7 Qc2 Rb2+ Ka3 Nd2 Bb4 Nb3 Na2 Ke4 Be1 Kd4 Qc1 Re2 Qc2 Nc5+ Kb2 Ke5 Ba5 Ke6 Be1 Rg1 h1Q Nb3 h2 Rf1 Na6 b8Q Qf3 b7 h1Q Rg1 Qhh3 Rh1 Qc6+ Bd6 Qc3 Bf4 Qch8 Rh2 Nd6 Qd8 Nc8 Qd6 Nb8 Qa6 Nc6 Bf5 Bg4 b8Q Bh5 Qbb7 Rb8 Qa8 Bf3 Bg4 R8b7 Rd2 Bd1 Re2 Nb8 Bc6 Rbh5 Qdd3 Rb4 Bd7 Rhb5 Nd2 Kc1 Rh1 Rb1 Nb3+ Kb2 Qde4 Rh6+ Qg6 Qf1 Rh5 Rh7 Qd3 Qh3 Rg5 Rh5 Rg7 Rh4 Rh7
Nq5k/bRbbKQRP/1p3QNr/6P1/bBnpQ3/7r/B3nr2/2Rb2b1 b - - 0 1 illegal: No proof kernel
1B3r2/K2pRn1r/3Q1Nk1/1rP1b1nr/Ppb5/5Q1B/2RrN3/2nRQ1rq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Ke2 b3 Kd3 Kf7 Kc4 h5 Kc5 e5+ Kb5 h3 g4 h4 c4 b2 f4 d3 a4 d2 g5 e4 f6 h2 f5 h3 c5 e3 Ne2 Bd6 Ra3 Rh7 Rc3 Nh6 Rb3 Na6 Nec3 e2 Rb4 e1N Rc4 Nd3 Nd5 Nc7+ Kb6 Qg8 Rg1 h1R Rc2 h2 Nbc3 Ne6 Ne2 b1R+ Bb2 Rb8 Ka7 b5 Be5 Nc1 Bg2 Ba6 g6+ Kf8 g7+ Kf7 Qf1 d1R Bf4 Qc8 g8R Ng5 Re8 Rd2 Qf2 Qc6 Rd1 Bc7 Qe1 Rg1 Re4 h1R Re7+ Kg8 f7+ Kg7 f6+ Kg6 Bf1 Rh5 Bh3 Rb3 Bh2 b4 Be5 Bc4 Bd6 Rb5 Be5 Ba5 f8Q Bc7 Qb8 Re3 f7 Rf3 f8Q Rff7 Qb6 Rf4 Qa8 Rf8 Nf6 Qh1 Qf3 Nhf7 Bh2 Bd8 Bb8 Bc7 Qe6 Be5 Qd6
nB1Q1n2/P2NPn1p/r1Qpb3/3N2r1/n1Bbk3/K4B1n/1N1R1qRn/5r2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 Ke7 e4 Kd6 c4 Ke5 Kc2 b5 Kb3 f5 g4 f3 a4 f4 a5 f2 c5 d3 a6 f3 c6 d6 c7 d2 g6 Bg7 g5 Be6+ Bc4 f1R c8B f2 Na3 Qf6 Ra2 Nd7 Nh3 Nh6 Rg1 Nf7 Bb7 Nf8 Rg2 Rg8 Qf3 d1N Be3 Bh8 g7 Qf5 Kc2 b3+ Kb1 b2 g6 b4 Nf4 Qf6 Ba7 Qh4 Kc2 b1N Kb3 Nbc3 Rd2 Nd5 Bb8 Nc7 Nd5 Qf4 Ka4 b3 Kb4 b2 a7 b1N Kb3 Nbc3 Kb4 Na4 Kb3 Nd7 Bc6 Rc8 g8N Nf8 g7 Qh2 Re2 Kd4 e5 Qf4 Ra2 Qd2 Qc3+ Ke4 Ngf6+ Kf5 Nb6 Rg1 B4d5 f1N Nfd7 Ng6 Nf8 Bd7 g8Q Rh1 e6 Bd4 e7 Nh2 Qc4 Be6 Nfd7 Nf2 Qh8 Qf4 Rd2 Rf1 Qc5 Qh4 Nac4 Nh3 Ka3 Qf2 Nb2 Rg8 Qc3 Rg7 Qe8 Nf8 Qd8 Rg5 Qc5 Kf4 Bc4 Ke3 Bf3 Kf4 Bh5 Ke4 Bhe2 Nd5 Bc7 Rc8 Bb8 Nc7 Bg4 Na8 Nd5 Rc6 Qb5 Rb6 Qc6 Ra6 Bf3+
1KbbQr2/4B3/k4Rq1/2rNQN2/B2Pnb1n/2ppB2P/r2Nb1r1/1R2r3 b - - 0 1 illegal: No proof kernel
1qr1kb2/N2Bb3/n2B1b1q/2b2n2/Npb1r3/1N2P2Q/2p1P1R1/1QK2RBb b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 g6 dxc4 Na3 e4 Nb1 e3 fxe3 hxg6 Kf2 g5 Ke1 g4 h4 c5 a4 g5 d4 f5 Kd2 b5 a5 b3 h5 c3+ Ke1 c4 d5 b2 h6 b4 a6 c2 Kd2 f4 a7 c3+ Kd3 f3 d6 f2 h7 g3 Rh5 g2 Nd2 b1B Qe1 g4 Rha5 g3 Rf5 Na6 Ngf3 g1B Rg5 g2 Ne5 Bb7 Bb2 Ba2 Nc6 c1B Kc2 Bc4 Nb3 Rc8 a8N Nh6 Na7 Nf5 Nb6 Bh2 Na4 g1B Bh3 f1Q Rg2 Qf4 Kb1 Rg8 h8Q Bf2 Qg1 Qh6 d7+ Ke7 Kc2 Rg4 Kd1 Qdb6 d8B+ Ke8 Bc7 Bh4 Bd6 Re4 Kc2 Bd2 Rf1 Be7 Qh1 Be1 Kc1 c2 Bbe5 B1h4 Bg3 Qd8 Bf2 Bhf6 Bg1 Bhe5 Bg4 Bd4 Qh3 Bc5 Qh7 Ng3 Be6 Nf5 Qg7 Bbd5 Qgg3 Bc6 Qe5 Qc7 Qa1 Qb8 Qb1 Rg4 Rh2 Bh1 Rg2 Re4 Bd7+
1b2N1bK/Q2R1b2/1Q3r1N/2R3Bp/5q2/1p1BP1Pn/1k1nn1nN/1B1rb2n b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 c5 d4 f5 g3 b5 a5 h5 a6 h3 a7 f3 d6 f4 d5 b3 d7 b4 d6 f2 Bb2 h2 Qd2 f3 Ke6 Nf6 Kf7 Nh7 Bh3 f1N Ra2 f2 Qe1 Ne3 Ba3 f1B Nf3 b2 Ra1 Kb3 Ne5 c4 Bg2 c3 Qf2 c2 Be4 c1B Nc4 Ng2 Bd3 Qh4 d8N Bd2 d7 Be1 Nd6 Nc6 Ne8 Bd6 Kg7 Rf8 Nf7 Qf4 d8Q Bb8 Nh6 Rf6 Qdb6 Nd4 Kh8 Ng5 Nd2+ Kc3 e3 b1N Nf3 b3 Be7 Nh3 Ra5 Ne2 Rc5+ Kb2 Rg1 h1N Nh2 Nd2 Bb1 Rc6 Bg5 Rf6 Qf3 Be6 Qfb7 Bg8 Bd3 Be5 Q7c7 Rb8 a8B Rd8 Qca7 Bb8 Bc6 Nc4 Bb1 Rd1 Bce4 Nd2 Bbd3 Nc1 Bb1 Bfc4 Bed3 Bcf7 Rf1 Ne2 Rf2 Qd4 Rff5 Qe4 Rfd5 Qf4 Rd7
1Q2b1rn/1Nn2n1B/Q2r1knb/N2P2p1/B3pN2/B2q4/2rPRrn1/3R3K b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 h4 Kf7 f4 b5 Kf2 c5 Kg2 e5 a4 g5 a5 g3 a6 c4 a7 c3 f5 c2 f6 b3 h5 b2 h6 e3 h7 b4 Rh3 e2 Rh2 e1N+ Kh1 b3 Na3 b1N Ba6 b2 Rh4 e4 Nf3 g2+ Kh2 g1N Rh3 Nc3 Rh4 b1R Qe2 Qd7 Bb5 Ng2 Bc6 Nh3 Nb5 Nh6 Kh1 Nhf4 Rh2 Qh3 Nfd4 Bd7 Nb3 Rg8 h8Q Ng6 Na5 Be8 Bd7 Qd3 Bf5 Nd7 Qf1 Rb8 a8B Nde5 Ba3 c1R Bc6 Rc2 Bcd7 Re1 Rd1 Re2 Bc6 Bg7 Bcd7 Rb6 Nd6+ Kf8 f7 Ke7 f8N Nef7 Ne6 Kf6 Ndb7 Rd6 Bc6 Nb5 Nf4 Nc7 Ba4 Rf2 Qe2 Rf8 Qg8 Nfh8 Qf1 N6f7 Qe2 N6h4 Bh7 N4g6 Qf1 Bh6 Qe2 Qh3 Qa6 Qd3 Re1 Bc6 Rd1 Ra8 Qb8 Bb5 Qba7 Rg8 Qb8 Bc6 Rh3 Bb5 Re3 Be8 Re2
1n4Q1/2K2B2/2n3n1/1rp2qBR/rq1p1Nbb/6k1/R1P1P1n1/R2QBnnN b - - 0 1 legal: proof: g4 e5 h4 b5 d4 exd4 a4 f6 g5 fxg5 axb5 gxh4 Ra2 h3 Ra5 Bb7 Ra1 Bc8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 g5 f3 h5 b6 c5 Kb5 a5 b7 d5 Bb2 Kf4 Ra4 d3 Nc3 h2 Ba1 g4 Qe1 g3 Qd1 g2 Na2 d4 Nc1 h4 Qd2+ Kg3 f4 h3 f5 Qd5 Kb6 Ne7 f6 Qf5 b5 Ng6 f7 Be7 f8Q Bh4 Qd1 d2 Ra2 a4 Qf7 a3 Qg8 Ra4 Bc3 Rh7 Ra1 a2 Nd3 Rf7 Nf2 Rg7 Qb1 d1N Be1 Ne3 Qd1 Bd7 Kc7 Re7 Nf3 g1N b6 Ng2 Ng5 Re3 Ne6 Rb3 Nf4 Rb5 Rb1 a1Q Rc1 Qc3 Ra1 Qb4 Ra2 Nc6 b8R Be6 Rd8 Nb8 b7 Qh5 Rd5 Bg4 Rd7 Qf5 Rh7 Nf3 Qd5 Nfe5 Rh5 Nec6 Rg1 h1N Qg8 Nd7 b8B h2 Ba7 Ndb8 Bb6 Qb2 Bba5 Qb3 Bad2 Qb4 N2d3+ Nf2 Rh1 Ne3 Bh3 Ng2 Rg1 h1N Bc1 Kh2 Bcd2 Ng3 Be3 Nfe4 Nf2 Nf1 Rh1+ Kg3 B3d2 Nge3 Bg2 Ng5 Bd5 Nf3 Bf7 Ng2 Qa1 Nce7 Ne6 Nge5 Bg5 N1h2 Bc3 N7g6 Nf4 Nec6 Rc1 Qb2 Be1 Nf1 Rd1 Qc3 Qc1 Ng1 Qd2 Nh8 Rda1 Ng6 Qd1 Qb4 Nh1+
2BnQ3/2R5/nnbk1Bb1/rpnpNb2/3P1q1P/3Q1N2/1rQR1b2/5RnK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 axb5 exf4 b6 c6 b5 cxb5 Kf2 Ke7 Kg2 f5 e4 g5 c4 a5 e5 a4 h3 f3+ Kh2 f4 b7 f2 e6 a3 c5 g3+ Kg2 g4 c6 a2 d3 Kd6 e7 Na6 b8Q+ Qc7 e8Q Ne7 Qd2 Nd5 Rh2 f3+ Kh1 Nb6 Bg2 f1B Qc3 f2 Qh5 Be2 Qc4 f1B Qa4 Bf3 Qe8 Be7 d4 Bh4 Qd8 Bd3 Qa7 Bg6 Qg5 Qb8 c7 Bc6 Na3 Rg8 Rb1 a1N Qf5 Nb3 Ne2 Nbc5 Bg5 Rf8 Qfc2 Rf2 Ng1 Rd2 Qd3 Rb2 Qb7 Ra7 Bd5 Ra8 Rd2 g2+ Kh2 Ra7 Bf6 Bf2 Nf3 g1N h4 g3+ Kh1 Nh3 Qa8 Nf4 Rf1 Nfe6 Qac2 Nd8 Be6 g2+ Kh2 g1N Kh1 B8b7 c8R Bce4 Rc7 Bbc6 Bg4 Bef5 Bh3 Nb4 Bg4 Ra5 Bh3 Nba6 Nc4+ Ke6 Ne5 d5 Bg4 Kd6 Bh3 Nf7 Bg4 Qf8 Qe8 Nd8 Bh3 Qh6 Bg4 Qf4 Bh3 Be4 Be6 Bef5 Bc8
rb3qb1/2R1nN1b/k2B1P2/6B1/1brq3P/QQpB4/pb1nN3/RQ1b3K b - - 0 1 illegal: No possible last move
3rb3/4B3/RQ2nPB1/q1R4B/N1b1QpKn/3pP3/kR3r1b/r1b2rNb b - - 0 1 illegal: No proof kernel
R3Q2K/2r1r1r1/rBR1P3/2Qp4/1nB2N2/b2rrq2/p1PBRNn1/q4b1k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 a5 b4 f5+ Kf3 Ke5 e4 d5 g5 h3 b6 h2 b7 d3 g6 d2 g7 h4 b5 h3 b6 a4 Na3 Nh6 g8R Rh7 Rh8 Rg7 Qe1 d1R Ra2 Na6 Bd3 Qf6 Rh7 Ng4 Qf1 Nb4 Bd2 Ne3 Rh5 Ra6 Bc1 Ng2 Bc4 Rd3+ Be3 Be6 Nb5 a3 b8Q+ Rc7 Rb2 a2 b7 Bd7 Nd6 Bb5 Rh8 Re7 Kf2 f3 Kg3 f2 Ne2 f4+ Kg4 f3 Qg1 f1Q Kh5 f2 Nf4 Qa1 Qe8 f1R b8B Re1 Bd2 Ree3 Bc7 Kd4 e5 Rg7 Nc8 Ke4 e6 Kf3 Bb6 Qf5+ Kh6 Kg3 Ng6 Qf3 Nd6 Be7 Nf4 Bf8 Qc1 Kf2 Re1 h1R Qd1 h2 Re2+ Kg3 Rb3 Rc7+ Kg6 Rg1 Rc3 h1R Kf6 Rhh7 Ne4+ Kh2 Nf2 Bc5 Rg8 Rhd7 Kg6 Be7 Kh7 Bc5+ Kh8 Re7 N2h3 Kh1 Qb1 Nc6 Qb4 Bd6 Qa5 Ba3 Rf8 Nb4 Rg8 Ba4 Qc5 Bb5 Rf8 Nh4 Rg8 Rgg7 Rf8 Ng2 Nf2+ Kg1 Qd7 Kh2 Ra8 Kg1 Qe8 Kh2 N2h3 Kh1 Nf2+ Kg1 Bb3 Red7 Qd6 Rd4 Re1+ Bf1 Rc6 Rdd3 Bc4 Rde7 Qc5 Kh2 Re2 Kg1 Nd1 Kh1 Nf2+
3r1Q1K/b1r1rbQ1/Bn1P1R2/Br1k2pb/1Rn5/b1bN1p2/2R1P3/1Q1q2N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 h4 c5 b4 f5 b6 g5 b5 a5 d5 f3 Ke3 f4+ Ke4 g3 h5 c3 b7 c2 h6 f2 b6 g2 h7 f3 Ra2 c4 Nc3 a4 Bd2 c1R Nh3 g1B Qb3 a3 Nd1 c3 Be3 c2 Qc3 Be6 Qd2 Nh6 Qd3 Ra7 Nb2 Nd7 b8R Rb1 b7 c1R Bb6 Rc7 Ba5 Bf7 Qb3 Be7 Nd3 Nf5 Rc2 a2 Qc3 a1B Qg7 Rg8 h8Q Bc3 Rh2 Re8 Qhf8 Ne3 Rh1 Nc4 Kf5 Rb5 Rh2 Be6+ Kg6 Bf7+ Kh7 Ndb6 Kh8 Bh5 Bg2 f1B Rh1 Bf2 Ng1 Qd7 Bh3 Rd8 Be6 Bh3 Rh2 B3g4 Rh3 Bg6 Rh6 Bf7 Rf6 Bgh5 Nf4 Kc5 Nd3+ Kd4 Bg4 Ba3 d6 Kd5 Bh3 Qc6 Bc8 Be3 Ra8 Qc5 b8Q Qd4 Ba6 Rab7 Ra7 Re7 Ra8 Rbc7 Ra7 Qh4 Rb7 Qe1 Qh7 Qd1 Qh6 Nc8 Qg7 Ba7 Rb6 Rbc5 Rb4 N8b6 Qc8 Rb5 Qh3 Qe1 Qf1 Qd2 Qc1 Qd1 Qb1
4r1q1/1n1q2b1/1B1pRbR1/1b1P4/2nPBkr1/1Q1p3Q/2NbbKb1/Q3B2N b - - 0 1 illegal: No proof kernel
1RB4Q/2bb2rR/Pn1b1k2/pn1N2r1/Q1R5/4Nr2/qPb1KpQr/4B1r1 b - - 0 1 illegal: No proof kernel
r7/3b1Nkp/1Q5r/1qn1n2N/B2KPprP/2r1R3/q1R3rr/QBB2bR1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 g5 cxd4 Bh3 e6 Bg2 Be7 Bf1 Bf6 gxf6 e5 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kf8 e4 b5 c4 g5 h4 d5 a4 g4 a5 b3 c5 b4 c6 d3 c7 b2 f7 g3+ Kf3 b3 a6 g2 a7 d2 Ne2 g1R Ra6 d4 Ra3 d3 Rh3 Kg7 f8R Nf6 Qc2 d1R Nd4 d2 Ra1 Rg8 Na3 b1Q Nab5 b2 Bc4 Qd7 Kf2 f3 Ke3 f2 Be6 f1B Qc5 Nc6 Qb6 Ne5 Ne2 Rg2 Nf4 Qa2 Nd6 b1R Kd4 Rb2 Re3 Qb5 Nf7 Bd7 c8B Rb3 Bc4 Rc3 Bd3 Re1 Bb7 d1R Bc6 Ree2 Rc8 Rh2 Rc7 Reg2 Rc8 Rdd2 Rc7 Rb2 Bb1 Rg6 Rc8 Rbg2 Rc7 Rh6 Nh5+ Kg6 Rc8 f4 Rc7 Be6 Be8 Nfd7 Rc4 Nc5 Bd7 Ra3 Rc2 Rc3 Bc6 Rac8 a8Q Bd7 Ng3 Kg7 Nh5+ Kf8 Qaa5 R8g4 Qa3 Ra8 Qaa5 Qbb3 Ba4 Qb5 Bd2 Ned3 Bb3 Qb2 B1a2 Be2 Rg1 Ne5 Bb1 Bf1 Qa1 Qa2 Bc1 Kg8 Ba4 Kf8 Nf6 Kg7 Nh5+
1rn2BR1/2rQ1NPn/7Q/2B2brN/q2npP1n/pn4bB/k2r1QR1/4K3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 g4 Ke6 c4 a5 f3 d5 b6 h5 b5 h3 b7 e3 b6 h4 c5 e2 g5 d3 g6 h2 g7 a4 c6 a3 c7 h3 Qd2 d4 Bb2 Kd5 Qh6 Kc4 Qf6 Kb3 Kf2 e1N Qf5 e5 Nc3 d2 Nd1 e4 Ke2 d3+ Kf2 Ra5 Qg6 Bf5 c8Q Nc2 Qh5 Nd4 Qc1 Ne7 Qc6 Qd7 Qd6 Nc8 Bc1 Nbc6 Nb2 d1N+ Ke1 Ne3 b8Q Ng4 b7 Nf6 Ne2 Nh7 Nc4 Ra7 Qhg6 Na5 Ra2 Qa4 Qd7 Bd6 Be3 Bg3+ Bf2 Rd8 f4 Rh8 Ne5 d2+ Kd1 Re8 Nf7 Re5 Bg1 Ra8 Qbd6 Rb8 Qh6 Rc5 Be3 Rc6 Qc5 Rc7 Rg1 h1R Rg2 h2 Rc2 Rg1 Rc1 Ra8 b8B h1N Ba7 Rb8 Bb6 Bf2 Ng3 Be1 Nh5 Ng3 Rc3+ Ka2+ Rb3 Be6 Bf2 Ngf5 Bh4 Bf2 Be7 Bg3 Bf8 Nh4 Ba7 Bf5 Bb6 Ndc6 Qf2 Nd4 Bbc5 Qb4 Rf3 Nab3 Rc3 Qa4 Rd3 Ndf3 Ke2 d1R Rd6 Rd3 Rc6 Nfd4+ Ke1+ Rd2 Re6 Rh1 Re8 Rh3 Rg1 Rh2 Bh3 Rg2 Rd8 Bh2 Re8 Rg5 Rg2 Bg3 Bfd6 Nc6 Rg8 Ncd4 Bf8
1k1B3K/1Q1n1pR1/n7/2nqr1B1/N1qb1Pnn/2PN2R1/1QQnbpN1/2r5 b - - 0 1 illegal: No possible last move, all moves rejected
1Qq1b1b1/NR2rp1n/1bp1B3/7b/b1Rq1NPQ/P1B1n3/1K1b1B2/r5Nk b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 d4 Ke7 Kd2 Kd6 Kc2 Kd5 g4 Ke4 g6 b5 g7 h5 d5 c3 d6 f3 d7 h4 e3 h3 Bd2 b3+ Kc1 h2 Bc4 c2 Bf1 c6 Qe2 f2 Kb2 c1B+ Kc3 b4+ Kc4 b2 Kb3 Bc5 Qa6 Ne7 g8N Nf5 Qa4 Bb6 Bc3 Bd2 Nh3 Kf3 e4 Ne3 Nf6 Re8 e5 Re7 Bc4 Kg2 e6 f1B Na3 b1B Nd5 Bh7 Nb5 Bg8 Kb2 b3 Qa7 Qe8 d8B Nd7 Qa5 Nf8 Ng1 Bd7 Na7 Nh7 Rb1 Qf8 Bc7 Qc8 Bg3 Be8 Bf2 Bd3 Qc5 Bc2 Qd6 Bg6 Qd8 Bh5 Rc1 Rb7 Qh4 Re7 Kb1 b2 a3 Rb8 Ka2 b1B+ Kb2 Bc2 Rb1 Ba4 Bb3 Rd7 e7 Rbb7 Nf3 Rdc7 Rhc1 h1Q Ng1 Qh2 Rc2 Kh1 Nf4 Rd7 Be6 Rd6 Nfh3 Qe5 Rcc1 Qd4 Rc2 Bd7 e8Q Rd5 Qed8 Be8 Qc7 Rf5 Qb8 Rf3 Nf4+ Rh3 Ka1 Re7 Rb4 Rh2 Rc4 Rh3 Rb2 Rh2 Rbb4 Rh3 Kb2 Rh2 Ngh3 Rg2 Rb3 Rg1 Rb5 Ra1 Rb3 Bc5 Rb7 Bb6 Ng1#
2Q1n3/BB2p1b1/p1b1bbQ1/1Q5q/3b1N1r/k2rrnPR/2R3Pr/1NK4N b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 e5 bxa4 e6 g5 Bb5 g4 Ba6 g3 hxg3 fxe6 Bd3 e5 Bf1 e4 Kd2 h5 f4 d5 c4 Kd7 b4 Kd6 b5 Kc5 f5 Kb4 b6 a3 b7 d3 c5 e3+ Ke1 h4 f6 d2+ Ke2 a2 c6 d4 f7 d3+ Kf3 e2 Ke3 e1B c7 h3 Qh5 d1R Qf3 d2 Qf2 h2 Nh3 Nd7 b8N Ne5 Nf4 Be6 c8Q Bg7 f8Q Qe8 Ba6 Nf6 Ng6 Rh4 Qg8 Nf3 Nf4 Qh5 Nd7 Ne8 Qf1 Bf2+ Ke2 Be3 Ne5 Bd4 Bb7 a6 Kd3 Re1 Kc2 Re3 Ng4 Ra7 Bb2 d1B+ Kc1 Ba4 Nf2 Bc6 Qe2 Bdf6 Bd4 Ra8 Ba7 Ka4 Qd7 Rd8 Qc8 Rdd3 Qf7 Bd4 Qg6 Bgf6 Rf1 Kb4 Nh1 Kb3 Rf2 Bg7 Nc3 Ka3 Rb1 a1B Rb5 Qg4 Rh5 Bgf6 Rh8 Qh5 Qf1 Bg7 Rc2 Bdf6 Ne4 Bac3 Nd2 Bcd4 Nb1+ Kb3 Nf2 h1R Rh7 R1h2 Nh1 Ka4 Rc3 Qe5 Qg4 Rd2 Qg1 R4h3 Qf1 Qg5 Rh4 Qh5 Rc2 Kb3 Qg6 Kb4 Nc3 Ka3 Qb5 Rdd3 Rg4 Qf5 Rg5 Rh7 Rh5 Qg4 Rh3 Rh4 Qd5 Qg5 Qb5 Qh5 Nb1#
3Q2b1/1n1p2q1/K1N1r3/5b1b/n2Pkr1N/p2Rr1b1/1NPR1r1R/1BQb2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 g4 Ke7 e4 Kd6 Ke2 Ke5 Kd3 a5 Kc4 h5 b6 f5 Kb5 f3 d3 h3 g5 a4 g6 h4 g7 f4 b7 h2 Bg2 h3 Ra3 b3 Qf1 f2 Bf3 b2 Bg4 f3 Qe2 f1R Ra1 f2 Nc3 b1B Qe1 a3 Qe3 Nh6 g8Q Na6 b8N Qg5 Bf5 Nc5 Qf7 Na4 Qa2 Ba6+ Ka5 Nf7 Qb2 Ba2 Qeb6 Rh6 Be6 Nd6 Be3 Qg7 Rd1 Re1 Qc7 f1R Qd8 Rf4 Qc1 B6c4+ Ba7 Re3 Rd2 Bab3 Bd5 Re6 Nd1 Be7 Nb2 Bh4 Bb7 Bd5 Ka6 Bg3 Bc6 Rf2 Nf3+ Kf4 e5 Nb7 Rhd1 h1B Nh4 Bhf3 Rh1 Bh5 Rh2 Rf6 e6 Be4 e7 Bg8 e8R Bf5 Re5 Re6 Rd5 Bd1 Rd6 Bh5 Bd5 Ke5 Rg2 h2 Ba2 h1B Rh2 B1f3 Bb1 Bd1 Nc6+ Kf4 Rd5 Rc8 Rc5 Ra8 Rc3 Rc8 d4 Ke4 Rcd3 Rf4 Bb8 Rf2 Qg5 Rf8 Qd8 Rfe8 Bf4 Ref3 Be3 Rf4 Qc7 R8e7 Qd8 Kd5 Kb5 R2f3 Qe8 Re5 Qc8 R7e6 Bg1 Rf2 Qf8 Re3 Qd8 Ke4 Ka6
1Qr1n1Q1/r1PrR2r/2B1p2b/PrQ2qB1/b1r1N2n/p2k4/2q4R/3R2NK b - - 0 1 illegal: No proof kernel
3r4/BKp1k1N1/3q1r1P/2B2b1b/1R2r1Q1/np1B1rr1/nP3Rq1/r3NQQ1 b - - 0 1 legal: proof: g4 e5 c4 b5 f4 exf4 c5 h5 c6 hxg4 a3 b4 Bh3 b3 Bf1 Bb4 axb4 dxc6 Ra3 c5 Ra1 c4 Kf2 a5 d4 f5 e4 g5 h4 a4 b5 f3 Ke3 c3 b6 f2 e5 a3 b7 c2 h5 f4+ Ke4 f3 e6 a2 d5 g3 d6 g2 Kd5 g4 h6 g3 d7+ Ke7 Be2 f1R Nc3 f2 Rh4 Nc6 b8Q Ra4 Nf3 g1R Qd3 g2 Ne4 Na7 Ne1 Nb5 Kc6 Nf6 Ng3 Re4 Nh5 Nd5 Qb6 Ndc3 Ng7 Na3 Be3 c1R Qb1 Rd1 Bd3 Rf8 Qa6 Rf7 Ba7 Rf3 Qc1 Qf8 Qg5+ Rf6 Qg4 Rd2 Rc1 a1R Rc2 Na2 Qb6 Rh1 Qe3 g1Q Qeg3 Qh2 Qg1 Rdd1 Re2 Qg2 Rc2 Rh3 Rd2 Qh8 Rc2 Rg3 d8B+ Kf8 Rd2 Qh7 Re2 Qg6 Rd2 Bd7+ Kb7 Rff3 e7+ Kf7 Rh5 Qd6 Rb5 Bf5 Rb6 Rdc1 Rb4 Rc6 Nc2 Rfd1 Ne1 f1B Rf2 Be2 Qf1 Kf6 e8Q+ Qe7 Qh8 Kf7 Kb8 Rf6 Kb7 Qd6 Be7 Qe6 Ba6 Qh2 Qh5+ Rfg6 Rg2 Rff4 Bec5 Rd8 Ne8 Qd6 Qd4 Ke7 Qdg1 Rf6 Rf2 Qg2 Bd3 Bd1 Qg6 Bh5 Ng7 Rff3 Qg4
K1BkN3/1P1N3q/1Qn2p1B/n1b3n1/pbNRbn2/1n2r2Q/P1B2b1r/7R b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 gxh5 b5 d3 bxc4 Qc2 cxd3 Qb3 Qf6 Qd1 Qd8 Kd2 g5 Kc3 d5 Kd4 c5+ Ke5 a5 h4 d4 b4 g4 e4 d2 b5 g3 b6 d3 b7 g2 h6 a4 h7 f3 h5 f2 h6 f6+ Kf4 c4 e5 c3 Ke4 c2 e6 Bc5 e7 Bf5+ Kf4 Qd7 Na3 Be4 Nf3 g1B Bh3 f1N Ne5 Bgf2 Nac4 Nc6 Qg4 d1N Qg1 Qc7 Bc8 d2 Rb1 Rb8 Rb4 Nc3 Kg4 d1N Nd7 Na5 Bf4 Bc6 Kf5 c1B Ke6 Nb2 Bg5 Bf3 Bf4 Ne4 Kd5 Kf7 e8B+ Ke7 Bg6 Bd2 Be3 Ng5+ Be4 Be2 Bc2 Kd8 Bf4 Nd3 Be3 Qh2 Bf4 Nb3 Kc6 Bf3+ Kb5 Bde1 Ka6 Ne7 Be3 Re8 h8Q Na5 h7 Nd2 Bf4 Ndb3 Be3 Nf7 Bh6 Bd2 Qb1 Nf4 Qb2 Ng5 Qd4 Bd6 Ka7 Be4 Qc5 Nf5 Qe3 Nfd4 Qh3 Bc3 Qg7 Bd2 h8N Re5 Qg8+ Bf8 Qge6 Bc5+ Rb6 Bdb4 Nf7+ Kc7 Nfd6 Kd8 Ne8 Ndc6+ Ka6 Bd5 Rb5 Re3 Rb6 Be4 Rb5 Be7 Rd5 Bed6 Rd4 Bdc5 Qg2 Qh3 Qf1 Qf5 Qh3 Qh7 Qd6 Bb6 Qc5 Ba7 Qb5 Bac5 Qb6+ Ke7 Bg7 Bd3 Qg4 Rf3 Nd6 Qg6 Qh4 Rg3 Qh7 Rg2 Qh3 Rh2 Bh6 Qf5 Nf8 Qh7 Bd7 Re8 Bc8 Nd8 Ka7 Ndc6+ Ka8 Bg6 Qb5 Kd8 Nd7 Re3 Ne8 Be4 Qb6+
2r3NQ/1p1Q1RQN/qp3Bbn/1b4rB/P3b2r/k2P1N2/2nr3b/2R2b1K b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 g5 h4 gxh4 b5 d5 b6 axb6 cxd5 Qd7 Nf3 Qd6 Ng1 Qd8 Kf2 Kd7 e4 Kd6 a4 Kc5 g4 Kb4 Kg2 f5 e5 h5 e6 c5 g5 c4 g6 f3+ Kh2 h3 d6 h4 d7 c3 g7 f2 e7 c2 e8N f4 Nf6 f3 Nh7 Nh6 g8Q Na6 Bg2 f1B Ra2 f2 Na3 Bd6+ Qg3 Bb5 d3 f1B Bd5 Rg8 Nf8 Rg5 Bb2 c1R Nc4 Rc2+ Nd2 Qc7 d8Q Qc4 Bf3 Bf5 Ba1 Rc8 Bh5 Bg6 Nf3 Bc7 Rb2+ Ka3 Qd7 Nb4 Nh7 Bd6 Rb1 Rb2 Qe2 Nc2 Ne4 Bb8 Kg1 Bc7 Rc1 h2+ Kf2 h3 Nef6 Ra2 Ng8 Bf4 Rg1 h1B Qe5 h2 Qh8 Bhg2 Bg7 h1R Bf6 Rh4 Rh1 Rb2 Kg1 Be5 Rh2 Bh1 Rf2 Bb8 Nd4 Bhe4 Nf3 Bf4 Qg2 Bh2+ Kh1 Ne3 Qc6 Rd2 Qd7 Nc2 Qgg4 Qc3 Qdg7 Qa5 Q4d7 Qa6 Re2 Bd5 Re7 Bde4 Rf7
2knB2B/P1n5/n1prR3/K6Q/pPNQq3/Q2n1bbb/1Nbb4/1RN4r b - - 0 1 illegal: No proof kernel
2n1NbQ1/p2r4/KN1p4/P1B3Qn/1Rn1bnbR/q1r2Pb1/1n2kB2/B6R b - - 0 1 legal: proof: d4 b5 g4 e5 c4 bxc4 Bh3 f5 gxf5 exd4 Bg4 h5 Qd2 hxg4 Qc2 Rh4 Qd1 Rh8 Kd2 Kf7 h4 Kf6 e4 Ke5 b4 Kf4 a4 g5 f3 c5 h5 g3 h6 d6 e5 d3 Kc3+ d2 e6 Ke3 f6 g4 h7 g2 f7 g3 e7 Qa5 e8Q+ Ne7 Bb2 Nc6 Ne2 g1B Ra2 g2 Bc1 Ne5 Rb2 Bh2 Nf4 g1N Ne6 Nh3 Nc7 Bg4 Qg1+ Ke2 Na3 Rc8 Rb1 d1B Be3 Bc2 Bf2 Rg8 h8R Bg3 Rh4 Be4 Qg2 Qa6 b5 Nf4 b6 Rg7 b7 Nh5 b8B Qa5+ Rb4 Qa6 Kb2 c3+ Kb3 c2 Nc4 c1N+ Kc3 Rh7 Nb6 c4 a5 Ncd3 Qb5 Ndf4 Ne8 Rc5 Kd4 Nc8 Bc7 Rc6 Qc5 c3 Qg1 Nc4 Qg5 c2 Bd8 Bh6 f8B c1N Bg7 Ncd3 Kc3 Rc5 Kb3 Rc6 Ba1 Rd7 Ka4 Bf8 Qg2 Qb7 Kb5 Ndb2 Qg8 Qc7 Ka6 Rc5 Qg1 Qc6 Bf6 Qa4 B6d4 Qa3 Qg5 Ne3 Qg8 Rc3 Bc5 Nec4 Qc1 Ne6 Qh6 Nef4 Qhg5
bB1K2Qr/1b3B1Q/N2nr3/N1Bk4/nPp5/Pr3rp1/3qQ1Rb/4Rnb1 b - - 0 1 illegal: No proof kernel
B2KRr1Q/2B1r1N1/5p2/3QQbn1/nkR2r2/1P1p2Pn/nr6/Nqb2Nb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 a5 e4 d5+ Ke5 h5 c4 a4 b3 f3 b6 f2 g3 h3 b7 a3 Qe2 d3 Nc3 f6+ Kf4 h2 e5 h4 e6 a2 Kf5 d4 Qe4 h3 Nd1 d2 Nc3 d1N Na4+ Kb4 c5 Rh7 c6 Nc3 c7 Nd7 b8Q+ Nb6 Qd5 Re7 Bg2 f1R+ Nf3 Bh6 Nb2 d3 Be3 Qe8 Rc1 a1B Nd1 Na2 Bf4 Bd4 Ne1 Bg1 Ne3 Qc6 Bf3 Qc2 Be5 Bd7 c8Q Qb1 Bc7 Rf2 Nf1 Rb2 Rc6 Bc1 Kg6 Nh6 Qh8 Nf7 Rc4+ Ka3 Kg7 Na4 Kf8 Bc8 Qbb5 Ng5 Qe5 Rb8 Bc6 Ra8 Qbd5 Rb8 Ba8 Rb4 Rc2 Rf4 Re2 Kb4 Re3 Rh7 e7 Bf5 e8N Re7 Re2 Bc5 Rg1 h1N Ng7 h2 Rgg2 Nf2 Nc2+ Kb5 Na1 h1R Rh2 Kb4 Rh4 Nfh3 Re1 Bg1 Re3 Rf7+ Ke8 Rhh2 Kd8 Rhe2 Qee8 Re7 Qeh5 Rf7 Re8 Ree7 Qe2 Rf8 Qee5 Nf2 Rh2 Nfh3 Rc2 Ref7 Rc5 Re7 Rc4+
4br2/6bP/1rB1B2N/nnn2N1p/3BQr2/kqP4K/rpb2Q2/R1N2R1n b - - 0 1 illegal: No proof kernel
1BbQ2B1/nn1P1p2/B2rQr2/b1r4Q/1P1R1k2/1Nr1R2K/bn2p3/1nq3N1 b - - 0 1 illegal: No proof kernel
2rbn2K/1P3k2/4Q2n/R2b3n/nQBR1rp1/2B5/2N1NPp1/B2brQqb b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 a5 h4 e5 b4 g5 c4 d5 c5 d3 Ke3 a4 b6 a3 h5 a2 b5 d2 c6 d4+ Ke2 g3 h6 g4 c7 d3+ Ke3 Na6 h7 Bb7 c8Q Be7 Rh6 Kf7 Rh1 Nc7 Rh6 Ra4 Rh1 Nh6 Be2 Bd5 b7 Ne8 Qdc2 d1B b8B d2 Bc4 Bf3 b6 d1B b7 Qc7 Na3 Bd8 Rh5 Bh1 Bd2 g2 Qb2 Qe7 Rb1 a1N Ne2 Nb3 Bc3 Nc5 Nc2 Rb4 Ba7 Na4 Bad4 Qh4 Qc6 Qh2 Qc1 Rg8 h8Q Qg1 Ba1 Rf8 Rb3 Rg8 Rd3 Rf8 Bdb2 Rg8 Rd4 Rf8 Kd2 e3+ Kd3 Rg8 Bc3 Rf8 Ng3 e2 Qb1 e1R Ne2 e4+ Ke3 Nc7 Kf4 e3 Ke5 Ne8 Qa6 Rb5 Qa5 Rc5 Qab4 Rc8 Qf6+ Kg8 Nc1 e2 Qfe7 Rf4 Rf5 Nd6 Kf6 Ne8+ Kg6 Be6 Rc5 Bd5 Qe4 Kf8 Kh7 Kf7 Kh8 Rf1 Qe5 e1N Ra5 Nd3 Ne2 Re1 Qb8 Rf3 Qe5 Nf4 Qed6 Nh5 Qdb6 Rf6 Qe6+ Kg6 Qd7 Rf1 Rd2 Rf4 Ne3+ Bc2 Rd4 Kf6 Qe1 Bd1 Nc2 Kg6 Ng3 Kf6 Qe2 Re1 Qf1 Kg6 Ne2 Kf6 Qdd6+ Kf7 Qe6+
1b1R1q2/rp2RBrr/4N3/r2Q1pPB/4bNn1/2k2N2/1P1R2bb/nQ2K1n1 b - - 0 1 illegal: Other
3n3Q/PR1n1r2/K5kP/1r3Nb1/BB1Nb2Q/2n3n1/Bbp3rp/3q1RQb b - - 0 1 illegal: No proof kernel
1n3k2/pb1pr3/2n2Q2/1n2P1K1/1Bb1r2n/6Q1/PR1R1r1b/rqNN1BNR b - - 0 1 legal: proof: g4 e5 h4 c5 d4 exd4 b4 f6 g5 fxg5 bxc5 gxh4 Ba3 h3 Bb2 Qb6 Bc1 Qd8 Kd2 g5 f4 h5 c4 b5 e4 h4 c6 d3 Ke3 g4 f5 h2 Kf4 h3 f6 d2 c7 g3 c5 g2 c6 b4 Qa4 d1N Qa5 b3 Qg5 b2 Ba6 Nc3 Na3 b1R Bd3 Rb4 Bd2 Rh7 Rd1 Re7 Qg3 Nb5 Nc4 Ba6 c8N Qb6 c7 Rb2 Bb4 Rf2+ Kg5 Bb7 Nf3 g1N Bf1 Bg7 f7+ Kf8 Rd3 Be5 Ncd2 Bd5 Nb3 Bc4 Nd6 Qb7 Nfd2 Qb6 Nc1 Nf3+ Kg4 Bf4 Nf5 Nh4 Nf3 Be5 Ne3 Bd6 Rg1 h1R Kg5 h2 Rd2 Qb7 Rg2 Rg1 Nd1 h1B Rh2 Bg2 Rh1 Be5 Qh3 Bh2 Qg3 Qb6 Ne1 Bf3 e5 Bb7 Nf3 Qg6+ Kf4 Qb1 Kg5 Re2 Rb2 Re4 Rd2 Nh6 Rb2 N6f5 Rd2 Nfd4 c8R+ Kg7 Rc5 Ndc6 Rb2 Kf8 Rd5 Na6 Rd3 Rc8 Rd6 Nab8 Rdd2 Rg2 Ng1 Rf2 Qh3 Kg7 Qa3 Rg8 Qg3 Kf8+ Kh6 Rgg4 Kh5 Rgf4 Kh6 Re1 Kg5 Rfe4 Nd3 Qc2 Nc3 Ra1 Nd1 Qb1 Nc1 Kg7 f8Q+ Kh7 Qf6 Kg8 Qg6+ Kf8 Qf6+
B4k1q/K5R1/n1b3QB/3q1r2/1q1Q1q1p/NN1nNPpn/rRP4Q/1n2b3 b - - 0 1 illegal: No proof kernel
1K3n2/2B2Q1R/1b1qbb2/k2bP2r/3p3N/q1npnQP1/RN6/1Brn2QR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 h5 Kf3 a5 Ke4 f5+ Kd5 d3 b4 a4 c4 h3 e4 f3 c5 a3 c6 h4 g3 f4 c7 h2 b6 a2 b7 h3 b5 f2 b6 f3 Ke5 d5 Be3 Kd7 Bd2 Kc6 Qc1+ Kb5 Bh6 Bc5 Be3 Ka5 Nd2 Be6 c8Q Nf6 Be2 f1N Bd1 f2 Bf4 Ne3 Qc7 f1N Bc2 Nd1 Bb1 Nfe3 Qf7 Qf8 Ngf3 Rh5+ Bg5 Qh6 Nh4 Bd4+ Kd6 Nbd7 Kc7 Nf8 Bf4 Rc8+ Kd6 Rc5 b8Q Rc8 b7 Bb6 Qbc7 Qg6 b8R Qh6 Re1 h1Q Q7c6 h2 Rb7 Qf1 Rc7 h1B Be5 Qf3 Qb7 Bg2 Rh1 Qf5 Bf4 Qe5+ Kc6 Qb2 Bd6 Qa3 Nc4+ Ka4 Nb2+ Ka5 Qb8 Qf4 Kb7 Qe5 Re7 Rc3 Bc7 Qed6 Qbe8 Rc6 Kb8 Rc3 Qc2 Rc5 Qf2 Rc1 Qg1 Bf3 Qc6 Bg2 Bc2 Bf3 Rb1 a1B Qfe8 Beg4 Nc4+ Ka6 Rh7 Be6 Qf7 Be5 Rb5 d4 Rb2 Nfd5 Bb1 N5c3 Ra2 Bf6 Nb2 Ka5 e5 Bg2 Qe4 Bf3 Qg4 Bfd5 Qf3
r7/3Br1Nr/NKb2b2/1n1p1qp1/6Q1/1PnBN2r/RP1n3q/n1RQk1B1 b - - 0 1 illegal: No possible last move, all moves rejected
1k5Q/2rBR3/1nbn1pb1/pn1QPb1n/4R1N1/1r2bP2/1N4B1/KRq2B1q b - - 0 1 legal: proof: d4 b5 Kd2 g5 a4 e5 axb5 exd4 h4 gxh4 Ra6 c5 Ra2 c4 Ra1 c3+ Kd3 Bb4 Bg5 Bf8 Bd2 cxd2 c4 d5 Kc2 Kd7 g4 Kc7 e4 h5 b4 a5 Kb2 d3 g5 d4 c5 h3 c6 h2 g6 h4 e5 h3 g7 Bf5 Bg2 Nf6 g8B Rh7 Ne2 Bh6 Nc1 Nh5 Ra3 f6 Ra4 Be3 Nc3 Nd7 b6+ Kb8 b5 Qc8 b7 Nb6 Ka1 Rc7 Nd5 Ra7 Rg1 h1Q f3 h2 Qb3 d1B Bf7 d2 Nd3 Be2 Nb2 d3 Rb1 d1B Re4 d2 Be8 Bf1 Bd7 Bc2 Qc4 d1N Qd3 Bg1 Ne3 Nc3 Ng4 Be3 Qd5 Bfd3 Bf1 Ba4 Bg2 Qg1 Bf1 h1N Bg2 Nf2 Bf1 Ra8 Bg2 Ka7 b8R Qc1 Bf1 Qh8 Re8 Rb8 Re7 Rbb7 Bg2 Kb8 Bf1 Ng3 Bg2 Qhh1 Bf1 Nh5 Bg2 Nc8 b6 Nb5 Bf1 Nd1 Bg2 Nbd6 Bf1 Nc3 Bg2 Ra7 b7 Ra6 Bf1 Rb6 Bg2 Rb3 Bf1 Ka7 Bg2 Nb6 b8Q+ Ka6 Qe8 Ka7 Qh8 Ncb5 Bf1 Rb7 c7 Bg6 c8B Kb8 Rf4 Bdf5 Re4 Rc7 Bg2 Nd4 Bf1 Bc6 Bg2 N4b5 Ba6+ Rc8 Qh6 Rc7 Qg7 Nd4 Baf1 N4b5 Qh8+
2bQK2N/3N4/3P1rB1/2Q1BR1p/3rr1pk/q2Pb3/bn1nb1qR/Nr1B4 b - - 0 1 illegal: No possible last move, all moves rejected
nn3qr1/2rRQ3/q1Qp1b2/2R4K/2P2NBb/2p3b1/k1rPb2r/N1Q3BR b - - 0 1 illegal: No proof kernel
3N2qB/8/bp2R3/B1Q1bp1n/rN3b1q/Qr2nK1P/2P1r1R1/1BQ2bkr b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 a4 Kf6 e4 Ke5 h3 d5 h6 f5 h7 g5 a5 d3 a6 Kd4 a7 b3 e5 g4 e6 d2 e7 b6 e8Q g3+ Ke2 b2 Qh5 g2 Qg6 f3+ Kf2 Nc6 Qe1 d1R Qge6 Bd6 Bd2 Ne5 Qf6 Ba6 Qg6 Nf6 Bh6 Nc4 Qe7 Re8 h8B Be5 Qgh7 Ne3 Nc3 b1R Bc4 Rb3 Na2 Nh5 Qc5+ Ke4 Qd7 d4 Ne2 d3 Nb4 d2 Rh2 Rh1 Nd4 d1Q Ndc6 Qd5 Re1 Qg8 Qd1 Qf6 Bf4 Qh4+ Bg3 Re6 Nd8 Re7 Re2 Re6 Qc1 g1B+ Ke1 Bf4 Rhg2 f2+ Kd2 f1B Be1 Kf3 Bd5+ Re4 Bf7 Rb1 Ba2 Rb3 Bb1 Re5 Qc3 Bgh2 Qc5 Rb8 a8Q+ Rb7 Qac8 Ra7 Q8c6+ Re4 Qa4 Be5 Qaa3 Bhf4 Rg6 Re7 Re6 Rc4 Bf2 Kg2 Be1+ Kg1 Rf2 Bg2 Ke2 Bf1+ Kf3 Re8 Nd3 Ra4 Ba5 Re7 Nb4 Rg7 Qc4 Rg2 Rd2 Re2 Qc5 Re1 Rf2 Re2 Rg2+
1K4B1/2r2qQp/Pp2n3/r2RQPq1/1N2N2r/B2B2b1/1R4rk/qR1nqb2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 a4 e5+ d6 h3 g4 e3 d4 e4 f3 Kg3 a5 e2 d5 e1Q f4 e3 g5 h2 f5 e2 g6 b6+ Kb5 c5 d7 b3 d6 c4 g7 c3 Qc2 b2 Bg5 Nc6 Nf3 Nf6 g8B Ng4 Qd2 c2 Na3 c1R Ra2 b1Q+ Rb2 Nf2 Qd5 Nd1 Nc2 Qa1 Be7 Qc7 d8Q Qd2 d7 e1Q Qd4 Qg5 Qe8 Nd8 Qg7 Ne6 Ba3 Bd6 d8R Qf7 Kc6 Ba6 Bd3 Bf4 Rf1 h1R Rd5 Rh4 Nd2 Kh2 Ne4 Bg3 Qb8 Bc4 Nb4+ Rc2 Qbe5 Rg2 Kd6 Rc8 Rg1 Rc5 a6 Ra5 Bb1 Be2 Bd3 Bf1 Kc6 Qe8+ Kb7 Qeh5 Bf7 Rc8 Bg8 Rc7+ Kb8 Be2 Rf1 Qf7 Rf2 Bf1 Rb1 Qgd2 Re2 Qg5 Reb2
4R3/2q1bPRb/q3pq1q/N2p1n2/2QbQ3/Qb2r3/B2P1R1n/BK2N1rk b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 f4 Kf7 g4 Kf6 c4 h5 f5 Ke5 c5 Kf4 b6 Kg3 c6 a5 b7 a4 c7 b3 g5 a3 g6 h3 g7 h4 f6 a2 f7 b2 Qb3+ e3 Kd1 h2 Kc2 h3 Qb4 e2 Qc5 e1B Qa5 Nh6 g8R+ Ng4 Qg5 Bf2 Qd5 Ra3 Qe4 Nc6 b8Q Nd4+ Kd1 Re3 Qh7 Nf5 Rg6 Rg8 Na3 b1B Bd3 Kg2 Qa8+ d5 Rf6 e6 Bb2 Be7 Kc1 Ba6 c8Q Bc4 Nf3 Bb3 Nc4 Qc7 Qa3 Rg7 Rd1 h1Q Ne1+ Kg1 Qh4 Nh2 Qe4 Qf3 Be2 B1c2 Na5 Kh1 Bc4 Rg1 Rg6 Bb1 Rg7 B1c2 Rb1 a1Q Bd4 Qa2 Ba1 Bd3 Qb4 Qa4 Qa3 Qac6 Rb2 Qa6 Rc2 Nf1 Kb1 h2 Ng2 Qff4 Re1 Qg5 Re2 Qf6 Ne1+ Rf3 Qf4 Bd4 Rf2 Re3 Qh4 Nd6 Qg4 Bh7 Qf4 Nf5 Rb2 Bd1 Ba2 Bb3 Qe4+ Rg2 Qb8 Bc4 Rg4 Kg1 Nb3 h1Q Qb5 Qhh6 Na5 Nh2 Rg7 Kh1 Rb4 Bb3 Qc4 Qaa7 Rb8 Qa6 Qec2 Rg6 Re8 Rg1 Qe4+
2BkqQ2/3rnpNP/1Q4Rr/b1R2Nn1/q2bN1K1/3B1P1p/1n1n1B1b/4b3 b - - 0 1 illegal: No proof kernel
qn1N1Bq1/1q1kPr2/1r2R2r/r1pq1RP1/1Rn2NB1/b4N1Q/1Q2p1b1/6K1 b - - 0 1 illegal: No proof kernel
BR3rbb/1n1qp2r/1QP3q1/b1P5/1Q3R2/Rr3pr1/1kN2Bb1/n2NKN2 b - - 0 1 illegal: No proof kernel
nNB1n3/k1P1KP1B/8/2R4p/1BnQpQR1/1r2Q2b/q1b3r1/n1qN2bb b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 e5 g4 h5 b4 d5 c4 Kd7 f4 Kc7 c5 Kb7 b6 a5 f5 e3 Kf3 a4 b5 e4+ Kf4 d3 Ke5 d4 f6 e2 g5 e1N f7 d2 g6 h3 g7 d3 Nf3 a3 Rg1 h2 Nc3 h1B Rg4 a2 Nd4 Nd7+ Ke6 Ng2 Nc6 Rb8 Ba3 Ne3 Bh3 Nc4 Rc1 a1N Bb4 Ngf6 g8B Ne8 Bh7 Rg8 Qe1 d1Q Qe3 Qf1 Nd1 d2 Rc3 Qc7 Rc2 Bg7 Ke7 Qe2 Qd4 Ka8 Qe3 Rb7 Nb8 Bd4 c6 Qf4 c7 Qh6 Qf4 Bg1 Rc3 Ne3 Rc5 Nc4 Rh4 Rg3 Be6 Rg2 Rg4 Ra7 Bef5 Ra3 b7+ Ka7 Be6 Ndb6 Bef5 Bd7 Be6 Bc6 Bc8 Rb3 Nd7 Na8 b6+ Ka6 b8Q+ Bb7 Qf3 Qhe3 Qf1 Qc3 Qf4 Qc1 Rcg5 Ne5 Qa7+ Kb5 Rg3 Bd5 Rf5 Be6 b7 Kc6 b8Q Nc4 Rd5 Bh3 Rg4 Qf2 Qa2 Qa7 Qb2 Qa3 Qa7 Qa2 Nf2 d1B Qae3 Bc2 Nd1 Bb1 Qbd4 Bc2 Nc5 Kb6 Na6+ Kc6 Rc5+ Kb6 Nb8 Ka7 Rgg5 Qa4 Rg3 Qa2 Rg4
br1q1N2/1kp2QRq/p2N4/1rP3rQ/b1B5/P2rnBnN/4b2K/2Q1bR2 b - - 0 1 legal: proof: e4 b5 d4 f5 c4 g5 h4 gxh4 Bd2 b4 Bc3 e5 dxe5 fxe4 Kd2 bxc3+ Ke2 Qe7 Ke1 Qd8 b4 d5 g4 Kd7 f4 Kc6 Kf2 h5 Kg2 h3+ Kh2 h4 a3 a6 b5+ Kb7 b6 d4 g5 c2 e6 c1R f5 d3 f6 e3 g6 d2 e7 e2 e8Q e1R g7 Nh6 g8B Bd7 f7 Re5 Ne2 Ng4+ Kg1 h2+ Kg2 h3+ Kg3 Rb5 Qe3 Nc6 Nbc3 Nd4 Ng1 Rb8 Ne4 Bb4 f8N Rc3 c5 Rh5 Be2 Rd3 Bf3 Rg5 Bc4 Bc3 Qde2 d1B Qc1 Be1+ Qf2 Be2 Ra2 Kc6 b7 Ne3+ Bg4 Ra8 b8Q Be8 Qc8 Rab8 Qf5 Kb7 Qf7 Bc6 Qh5 Be8 Nf3 Bc6 Rf1 h1Q Ng1 h2 Kh3 Be8 Qff7 Ndf5 Bf3 Ng3 Ra1 Ra5 Ra2 Ba4 Rc2 Rb5 Rd2 Rc3 Rd6 Rcb3 Rg6 Rd3 Rg7 Qg2+ Kh4 h1B Nh3 Qg1 Nf4 Qf2 Kh3 Bg2+ Kh2 Bh1+ Bg2 Qf3 Nh3 Qf5 Bf3 Qh7 Be6 Bg2 Bc4 Rc3 Nf6+ Ka7 Bg4 Ba8 Ne4 Kb7 Bf3 Rd3 Nd6+
3rb1B1/1P1b3K/pq2N2B/1p1Q4/1bNQn3/nR1n2r1/RnP1b2k/3q1BQ1 b - - 0 1 illegal: No proof kernel
8/Rp1bRQK1/1n1Q1r2/6kB/rqP1n1pr/1NBb4/1qP4B/bN1rR1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 f5 axb4 d3 c5 f6 c4 dxc4 exf6 Ba3 f5 Bc1 f4 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kd4 g5 e4 b3 h4 g3 a4 f3 h5 g4 h6 g2 a5 f2 a6 b2 h7 Bg7 a7 Qb6+ Kd3 d4 Nf3 g1B Bf4 Qb4 Bh2 Bd7 Nfd2 Kg5 e5 f5 e6 f4 Ke4 f3 e7 d3 Nb3 d2 Bd3 f1B e8Q f2 Qf7 Nf6+ Ke5 Be2 Ra4 f1R Bg6 Bd3 Bh5 Rf3 Ra6 Rf2 Re6 Ne4+ Kd5 Rf6 Ke5 Ng3 Re7 Ne4 Qe1 d1R Qg3 Rc8 h8B Rcc6 Qf2 Ra6 Qc5 Ra4 Nc3 b1Q Qd6 Bc5 Rf1 Qb2 Re1 Bg1 Qfd5 Na6 Qf7 Rf8 a8R Nc7 Ra7 Na8 Kd5 Rh6 Nb1 Bc3 Bd4 Nb6+ Ke5 Rfh8 Qc7 Rf6 Qc5 Qa2 Qd6 Ba1 Bc3 Qb2 Bg6 Rh4 Bh5 Rf2 Qf3 Be8 Ke6 Bb5 Kf7 Bd7 Kg7 Rf1 Qf8 Rf6 Qf7
nnNrb1b1/p1q1R1KQ/3r1B2/1B3Q1P/5N2/k1P2RB1/1brr2pq/3Q3b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Kd6 h4 g5 e4 f5 b6 f3 Kg3 f4+ Kf2 d3 b5 Kc5 b7 Kb4 b6 d5 h5 g3+ Ke1 g4 Kd2 g2 e5 g3 e6 d4 e7 f2 e8Q f3 Ra2 Qc7 Qf7 Be6 Nc3 Nf6 Be2 f1B Qg6 f2 Qh7 Bg7 Ne4 Nfd7 Ra5 Rd8 Re5 Bg8 Nh3 g1Q Nf4 Bg2 Bb2 f1B Rh3 Bh1 Re7 g2 Rf3 Qh2 Nd6 Bh8 Ba1 Ka3 Nc8 Bf6 Ke1 Bg7 Kf2 Bh8 Bc3 d2 Bb5 d3 Ke3 Bg7 Ba1 Bb2 Ke4 Be2 Kf5 Bf1 Qc1 d1R Kg6 Rd2 Qd1 Be2 Rfe3 Bg4 Rf3 B4e6 Kh6 Bef7 Qf5 Be8 Qh7 Bc1 Bf6 Bb2 c3 Rc2 Kg7 d2 Qf1 d1R Qf5 Na6 b8Q Rd6 Qb7 Nab8 Qd1 Rdd2 Qbe4 Rd6 b7 Nb6 Qh7 Rdd2 Qd5 Rd6 Qdf5 Na6 Ne2 Rb8 Nf4 Na8 Nb6 Rbd8 b8B Qd7 Bc7 Nb8 Nc8 Qc6 Bb6 Qc4 Bf2 Qc7 Bg3
1RbQ2q1/1B2NbRn/1p3q2/5QQ1/1qb2b2/b2pB1r1/1k1P1NnP/n2K3R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 e5 c5 exf4 c6 Ra7 Qa4 b6 Qd1 Rb7 cxb7 axb4 e4 Ke7 a4 Ke6 e5 Kd5 e6 f5 a5 c5 a6 g5 a7 c4 a8R f3 e7 g3 e8Q g2 Qh5 f4 Be2 c3 Nh3 g1B R1a7 f2+ Kf1 c2 Ra3 b3 Qe8 b2 Qg6 g4 Re3 g3 Rc3 Ba3 Qf6 Nc6 Bd3 g2+ Ke2 f1B+ Ke1 f3 Ra4 Nce7 Ra8 Be3 Rg1 Nf5 Rb3 Nh4 Bb5 Bf4 Qg6 Nf6 Bd3 Rg8 Be4+ Kc4 Qg4 d5 Qg6 d4 Rh1 g1Q Nc3 b1Q Bf5 Nh7 Be4 Qf6 Bb2 c1N Qc2 f2+ Kd1 Qgg5 Bc6 Ng2 Qcf5 Bd3 Qh6 f1B Nf2 Be4 Qh4 Bd5 Ba1 Bde6 Nd5 Bf7 Rg3 Qb4 Ne7 Nb3 Bb2 Na1 b8Q Ba6 Rg4 Kb3 Qd8 B1c4 Rb8 d3 Bd4 Bc8 Be3 Kb2 Bb7 Qgg7 Qh6 Qf8 Rg3 Rg5 Rg4 Qg8 Qhg6 Rh5 Qh6 Rh3 Rg7 Rg3 Qhg5
3QK2Q/1R2B3/Pb1qrpN1/3B1n2/4RP2/RBk4N/n2q3p/r1qn1qqr b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 Bd2 axb4 Bc1 g5 e4 gxh4 Rh2 d5 Qd3 Be6 Qd1 d3 Rh3 d4 Rh1 Bd5 exd5 Qd7 Qd2 Qc7 Qd1 Qd8 Kd2 Kd7 a4 Kd6 f4 Kc5 g4 Kc4 c3 e5 a5 b5 g5 h5 g6 h3 g7 b3 d6 h4 d7 e4 Be2 e3+ Ke1 h2 Nf3 b4 Ng1 b2 Ra3 h3 Bf3 d2+ Ke2 Nh6 g8B b3 a6 Bc5 Bg2 d3+ Kf3 e2 Ke4 Nf5 Ke5 e1Q+ Be4 Qg5 d8Q Bb6 Qh5 d1N Qh6 Qg4 Kf6 d2 Bd5+ Kd3 c4 Nc6 c5 Nb4 c6 Na2 Nc3 b1R c7 b2 c8R Ra1 Qhf8 b1Q Rc7 Qe3 Bb2 Qc1 Rb7 Qge2 Qg7 Qf1 Qh6 Rc8 Qg7 Rh5 Qh8 Rc7 Bb3+ Rd7 Nd5 Re7 Bc3 Rh4 Bb4 Re6+ Kg5 f6+ Kg6 Qe5 Kf7 Qd6 Ne7 Rh6 Bc5 Kc3 Ke8 Rh5 Nf3 Rh6 Ng5 Rh4 Rg1 h1Q Rg2 Qhg1 Re2 h2 Re1 Rg4 Nh3 Rg3 Re5 Re3 Re4 Re1 Rb4 Nde3 Bf7 d1Q Re4 Qd1d2 Bg8 Nd1 Bf7 Re5 Bfd5 Re6 Kf7 Qe5 Ng6 Qb8 Bf8 Qd6 Be7 Qgd4 Qh5 Qfc4 Qh7 Rh1 Qh6 Qg1 Ke8 Qcf1 Qh8
5rn1/2p1bbQ1/2P1n1N1/2B1Rbq1/1bk2nR1/1Q1N3b/2PbBKpb/2R1N3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 e5 Ra5 e6 Rc5 dxc5 b5 Kd2 fxe6 Ke2 e5 Ke1 e4 f4 Kf7 a4 Ke6 h4 g5 c6 d5 a5 b3 h5 b4 a6 b2 a7 e3 a8N e2 h6 b3 h7 d4 f5+ Kd5 f6 e5 f7 g3 Nc3+ Kc4 Rh6 b1N Rh3 e4 Qd2 g4 Bg2 b2 Qe3 d3 Ra6 Nd7 Bf3 g2 Ra7 g3 Ra5 Be7 f8Q Nc5 Ra3 Ne6 Nd5 Nc3 Qf7 b1B Qg7 Ba2 Nb4 Nd5 Ra4 Ndf4 Ba3 Qd5 Rh1 Qg5 Bh5 Bd7 Nf3 g1B Ra5 g2 Re5 Bh2 Kf2 d2 Rc1 d1B Nd3 Bc8 Qb6 Bb3 Bc5 e1B+ Ke3 Bb4 Kf2 Bd2 Nfe1 Bg4 Qb7 Bf5 Be2 Nf6 Qb6 Rf8 h8R Ng8 Rh4 Bh3 Rg4 e3+ Kf3 Nd8 Qb7 Bf5 Qb8 Ne6 Nb6+ Kb5 Nd5+ Kc4 Bf1 e2 Kf2 Bd8 Ne7 Bb4 Ng6 Be7 Nf3 e1B+ Ke3 Bed2+ Kf2 Kc3 Be2 Bd5 Nfe1 Kc4 Qa8 Nd4 Qc8 Bf7 Qb8 Nde6 Qb7 Bbc3 Qb1 Bb4 Qb3+
1Qrq2Q1/N3kB1R/n1b4N/b7/1bp1qpbb/1R5b/3bPP2/NnB2BK1 b - - 0 1 illegal: No proof kernel
3nnBQ1/2bq1qNp/5Q1P/5B2/4nkq1/4nBR1/bNP3p1/KnnrQ2R b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 g4 b5 Qd3 f5 Qd2 Ra6 Qd1 Rf6 Nd2 exf4 Nb1 f3 Nd2 f4 Nb1 Rf5 gxf5 Be7 Nc3 Bc5 Nb1 Bf8 Kd2 Kf7 e4 Kf6 h4 Ke5 a4 d5 h5 g5 h6 f2 a5 g4 a6 g3 f6 d3 a7 g2 a8Q d4 f7 b3 Bb2 f3 Kc1 b4 Ne2 Qd7 Qa7 Nf6 Rh3 Ne8 Rh4 Nc6 Qb7 Bd6 f8Q Bc7 Qf7 Nd8 Nbc3 d2+ Kb1 d3 Bc1 b2 Ka2 b1N Qe1 d1Q Nd4 d2 Bd3 f1Q Rg4 f2 Rg3 Q1g4 Na4 d1N Qa6 Ne3 Qg8 Kf4 e5 Nd2 e6 Ne4 e7 b3+ Kb2 Bb7 Nf5 Bd5 Ng7 Bc4 Kb1 b2 Be2 Bf7 Bf3 Qc4 Bd2 f1N Bb4 Qb3 Ba3 Qb7 Qe6 Nfd2+ Ka2 b1N Nb2 Nb3 Qg6 N8f6 e8B Bc4 Bf7 Ne8 Be6 Qbd5 Bf5 Q5f7 Bf8 Bd5 Nd1 Nc1+ Kb2 Ba2 Qf6 Bc4 Ra7 Be6 Ka1 Ba2 Nb2 Qdd5 Ra5 Qc6 Bb4 N8d6 Qf8 Ne6 Qb8 Qb5 Bg6+ Qbf5 Ba3 Rd8 Re5 Rd7 Qg8 Ne8 Bf8 Rd1 Qd8 Q5f6 Rh5 Q6e7 Bf5 Qd7 Qf6 Nd8 Rh1
Nk5B/2B2r2/nKP3np/1Nn4P/2rQnRB1/2qb2rR/5pn1/1q1Q1n1Q b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g3 f5 Ba3 f3 Qc1 f2+ Kd2 f4 Qd1 f3 Bb2 Bd6 Bc1 Bf4+ gxf4 Ra5 Bh3 Ra3 Bf1 Ra8 Kd3 g5 Kc4 d5+ Kc5 Kd7 a4 Kc7 c4 b5 e4 b3 h4 g4 e5 g3 f5 b4 a5 d3 a6 h6 f6 d2 a7 b2 f7 g2 f8B d4 h5 b3 e6 d3 e7 Bf5 e8Q Qd4+ Kb5 Qc3 c5 Ne7 c6 Ng6 Be7 Rf8 Bf6 Rf7 Qee2 Na6 Na3 b1N Qee1 b2 Be2 f1N Rh3 f2 Nf3 g1R Ng5 Rg3 Bh8 Re8 a8Q Re4 Qf8 Rc4 Qb4 Kb8 Kb6 Be4 Bg4 Bf5 Qf3 d1N Qh1 d2 Nb5 Bd3 Ne6 Nde3 Ra4 d1N Nec7 Ng2 Bg5 Nbd2 Na8 b1Q Bd8 Nb2 Qd1 Ne4 Qc5 Be2 Qe3 Nd3 Qd4 Ndc5 Ra3 Qcb4 Rf3 Bd3 Rf4 Qc3 Bc7+
1R3b1N/r3kb1K/3nqB1b/pn4R1/1Q1p1bQ1/1R1P2Nn/1q1b1bP1/4N2B b - - 0 1 illegal: Other
n1b5/q2qRNQR/1BR1PK2/1p1Bn2b/pPb1Q3/1rNNb3/3nb3/4k2b b - - 0 1 legal: proof: h4 e5 a4 b5 f4 exf4 d4 g5 a5 gxh4 Nf3 c5 Na3 cxd4 Nb1 a6 Ng1 Ra7 Kf2 Rb7 Ke1 Rb6 axb6 a5 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 b4 d5+ Kh5 f5 g4 h3 g5 f3 e3 f2 g6 h2 b7 f4 g7 a4 c5 f3 c6 d3 c7 d2 Be2 f1N Qb3 d1B Ra2 f2 Qa3 d4 Qc3 d3 Qb3 d2 Bb2 Ne7 Kg5 h5 g8N h4 Ba1 h3 Bg7 Nbc6 b8Q Qd7 Qb2 Ne5 Qa8+ Nd5 Nf3 Bc5 Bc4 Be2 Ne1 d1B Nh6 Nd2 Nd3 Kf3 e4 f1B Nf7 Nb6 Bd5 Be3+ Kf6 Rh5 Qc6 Na8 Nc3 Rg5 Bf8 Rg3 Bc5 Kg2 Bb6 Rf3+ Nf4+ Kf2 Qa1 Ke1 Qb7 Nec4 e5 Rg3 e6 Ne5 Rc2 Bc4 Qb2 Bh5 Qc6 Bce2 Qc4 Rf3 Qe4 Bc4 Na2 Be2 Rc6 Rg3 Nc3 Rf3 Rg1 h1B Rg7 h2 Rh7 Rh3 Na2 Bc4 Nc3 Bfe2 Nd3+ Kf1 Rh8 Bf4 Bd4 Bb7 c8R Bg2 Rh7 h1Q Kf5 Qe7 Nf2 Ng6 Re8 Bc8 Na2 Qg1 Nd1 Bh1 Nc1 Rb3 Nd3 Qd7 Re7 Bg5 Ba7 Qc5 Qh8 Ne5 Nc3 Be3 Kf6 Qb6 Qg8 Qa5 Bb6 Qaa7 Nc5 Kf2 Qg7 Ke1 Nd3+
qR1qNR1b/Q3qBbN/k5pq/4B1P1/1RK5/pr1n3b/2Pbq3/1B1r1Q2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 e5 g6 e6 Nc6 h5 Ne5 Kd2 Nf3+ Ke2 Nh4 Ke1 Nf5 h6 Ng7 hxg7 fxe6 Qf3 e5 Qd1 e4 Ke2 e5 f4 h5 b4 a5 g4 d5 f5 Kd7 b5 Kc7 g5 Kb7 b6 d3+ Kd2 a3 Kc3 h4 f6 d4+ Kc4 e3 f7 e4 Kb5 a4 Nh3 d2 Ra2 e2 Ng1 e1Q Nc3 e3 Be2 h3 Rh2 d3 Bb2 Ne7 g8B Rb8 Ra1 a2 Ba3 Nd5 Qc1 d1Q Rb1 a1B Rb4 d2 Kc4 Bg7 f8R Nf4 Nd5 Ka6 b7 Nd3 Bb2 a3 Bf7 Bg4 Bf1 Qde2 Nf6 d1Q Be5 Rh4 Rf2 h2 Ne8 h1Q Nf3 Bh3+ Nd4 Rg4 Rf3 Rg1 Ne6 Qeh2 Rg8 e2 Nf8 Qe7 Bg2 Qf1 Rf5 e1B Nh7 Qfe2 Bgd5 Bd4 Qf4 Bd2 Qf1 Qhe4 Bde6 Qhh1 Rf8 Qh4 Rf4 B4c3 Rd4 Qh6 Rd8 Bh8 Bf4 Bcg7 Be5 Ra8 b8Q Qhb7 Qc8 Rb8 Qc5 Qa8 Qcf2 Rb5 Rb8 Rh1 Kd4 Rb6 Ba2 Rg1 Bb1 Rb7 Rc4 Rb3 Rcb4 Nb2 Nd6 Be1+ Kc5 Qdd3 Q1g2 Bd2 Qh1 Rd1 Qhf1 Qeb7 Ne8 Qd8 Qe3 Nd3+ Kc4 Qbe7 Qa7+
2rBbQ1k/N2Q3n/1r1PBN2/2r1p1Rr/1B2P2r/1b1RKbq1/pb6/Q4q2 b - - 0 1 legal: proof: c4 g5 f4 gxf4 h4 d5 g4 dxc4 a4 b5 g5 bxa4 h5 Nc6 Nf3 Ne5 Ng1 Ng6 hxg6 Bh6 Bg2 Bg7 Bf1 Bf8 Kf2 f5 e4 a5 d4 h5 b4 e5 b5 c5 g7 Kf7 b6 a3 d5 c3 b7 a2 b8B c4 Qd3 c2 Qd2 a4 Bd3 a3 Qa5 c3 Qb4 h4 Bb2 c1R Be2 f3 Rh2 c2 Qb3 h3 Nd2 f4 Qe3 Be6 Bd6 Rc8 Bd4 Nf6 Rg2 Kg8 Nb3 h2 Bc4 h1B Na5 Rb1 Nc6 c1R Qe1 Nh7 Ne2 Rb6 Bb4 Qf6 Nc3 Qg6 Rb1 a1R Na7 a2 Rb3 Bc5 Be3 Bd4 d6 Rab1 Nd5 Bb2 Rd3 Bd7 Bbd2 Be8 Bb4 Rc3 Bb3 R3c5 Rg3 Rbc1 Bc4 Rc3 Qa1 Rc1 Bed2 Bg2 Ba5 Rh1 Bdb4 Rh5 Bb3 Rbc6 Bd8 Rb6 Ke1 f2+ Ke2 f3+ Ke3 f1Q Rg4 f2 Bc4 Qe6 Nf6+ Kf7 Bb3 Bf3 Rg2 Kg6 Rg1 Qf7 g8Q+ Qg7 Qe6 Qg8 Rg3 Kg7 g6 Rh4 Nd5 Nf8 Bc4 R8h5 Qd7+ Kh8 Rg2 Nh7 Rg1 Bd1 Rg2 Bb3 Rg3 Qg2 Rg4 Qf7 Rg5 f1B g7+ Kg8 Nf4 Be2 Be6 Bed1 Nd5 Qh2 Bh3 Qf1 Bf5 Bf3 Bg4 Nf6 Be6+ Kh7 Bf7 Qg3 g8Q+ Kh6 Qf8+ Kh7 Bg8+ Kh8 Be6+ Ng8 Qff7 Nf6 Qfe7 Nh7 Nf6 R5c6 Qf7 Rc5 Qf8+
bNQ1r2b/nr3r1B/1B1RbpQ1/r2q4/1b3rR1/P3NP2/2pk4/2qN2KB b - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 e4 a5 h4 gxh4 d5 axb4 d6 Nd7 Rh2 Nb6 Rh1 Nd5 exd5 Bh3 Qh5 Bd7 Qd1 Bc8 g4 Kd7 g5 e5 a3 h5 g6 b5 g7 c5 Qe2 c3 Rh3 c4 Be3 e4 Bd4 c2 Re3 c1Q+ Qd1 b3 Nf3 b4 Bb2 h3 Be2 c3 Kf1 c2 Rd3 h2 Bd4 h1R+ Kg2 f6 Bf1 e3 Be5 b2 Rd4 b3 Rc4 e2 Ng5 e1B Be2 h4 Bg3 Rf1 Nc3 b1R Nh3 b2 Rg4 Ra5 Bf3 Ne7 g8B Nc6 Bh7 Bg7 Qd3 Na7 Nf4 Re8 Nd1 Bh8 Qg6 h3+ Kh2 Bb4 Ng2 Rfe1 Bf4 R1e4 Be3 Rf4 Kh1 h2 Bb6 Bc3 Ne3 Bb4 Kg2 h1B+ Kf1 Bb7 Kg1 Ba8 Be4 Bg2 Bf3 Bf1 Bh1 Bh3 Rg3 Be6 f3 Kc8 d7+ Kb7 d6 Kc6 Rg2 Kb5 Rg4 Ka4 Nc4 Kb3 Ne3 Qc8 d8N Qc5 d7 Qd5 Nf5 Kc4 Nc6 Kd3 d8Q Kd2 Qd7 Re7 Nb8 Rf7 Ra2 Ra1 Ne3 b1R Qc8 Rb3 Rb2 Rb1 Qcg8 Rc3 Rb3 Rc8 Rc3 Rd8 Rc6 Re8 Rd6 Bc5 Bd8 Rbb7 Bb6 Bb4 Qf8 Ree7 Qd8 Re8 Qc8
1R1RRQ2/B4P2/4pr2/3bN1Kb/2r2rpN/1Q2Pb1B/1b1r1q1k/qb1n2Q1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 h3 g5 Bf4 g3 Bd2 Nc6 Bc1 Ne5 h4 g4 Na3 Nf7 Nb1 Ng5 hxg5 Ra7 Bh3 Ra5 Bf1 Ra8 Kd2 Kf7 c4 Ke6 a4 Kf5 f4 b5 g6 d5 a5 h5 c5 d3 Ke3 b3 c6 g2 a6 d2 a7 e6 g7 b2 c7 h4 Ra6 h3 Nf3 g1Q+ Kd3 d4 Rb6 b4 Ra6 b3 Ne1 h2 Qc2 d1B Ra3 Bd7 c8R Nh6 g8Q Qa5 Re8 Rc8 a8Q Bg7 Qb7 Rc4 Rd8 Qf2 Ra2 Be8 Bh3 Bh5 Nd2 b1B Re8 b2 Ndf3 Qa6 Kd2+ d3 Ng2 Qa3 Re1 h1B Qa7 Bf6 Qgg7 Rf8 Ngh4+ Ke4 f5 Kf4 Rd8 Kg3 Ne5 Kh2 Qb3 Bd5 Qe3 Rf7 Qf8 Bg7 f6 Nf5 Qec5 Ne3 Re8 Rf4 Qd4 Rc7 f7 Rc4 Qdb6 Qa7 Ra4 Qa8 Rb4 Qa1 Qbc5 Rf6 Rbb8 Rcf4 Kc3 d2 Qa7 Bdc2 Rd1 Bce4 Kd4 Bh8 Neg6 Bf3+ Ke5 Bc2 Qac5 b1R+ Bb2 Bf5 Bd4 Rb2 Qc1 Bb1 Ba7 Bg7 Rg1 Nd1 e3 Nc3 Re1 d1R Re2 Rc4 Rd2 Rf1 Rd3 Rd2 Rd4 Bf5 Kf4 Bb1+ Kg5 Nd1 Ne5 Rf4 Neg6 Be5 Rd3 Bb2 Ne5 Bc6 Rd7 Bcd5 Rdd8 Rf6 Nd3 Bh1 Qh8 Qe2 Qb4 Nc3 Qg8 R1f4 Qgf8 Bhf3 Qb3 Qf2 Qe1 Nd1 Ne5 Qa6 Qf1 Qa1 Qg1+
3rBk1q/bq1p1PR1/2B2nb1/1rQ1Q1B1/2RP1qpr/3rRNq1/2K1N3/5r2 b - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 a5 Bg2 axb4 Bf1 h5 c3 hxg4 Ba3 b5 Bb2 b3 Bc1 Nc6 c4 b4 Bb2 Na7 Bc1 Nb5 cxb5 Rh7 Bc4 Rh3 Bf1 Rh8 d4 g5 Kd2 c5 f4 e5 a4 e3+ Kd3 e4+ Ke2 c4 h4 c3 a5 g3 h5 g2 b6 c2 h6 g4 h7 b2 b7 b3 b8Q Bb7 a6 Nf6 f5 Bc5 a7 Kf8 Nc3 b1Q Ra5 b2 Nf3 g1Q Ra3 Qg3 Qe5 Qf4 Bd2 c1R Qc2 Rd1 Ra4 Qe8 Rc4 Rd8 a8B Ba7 Rh3 Ba6 Bc1 Rd3 Bc6 Bb5 Ke1 e2 Bg2 Qh5 Bd5 Bc6 Bf7 Bd5 Be8 Bf7 Rg3 Bg6 Rh3 Re3 Kd2 e1R Ne2 Rf1 Ng5 Rb3+ Re3 Rb5 Kc3 Qh4 Bd2 Qbe1 Nf3 b1Q Qc1 Qeg3 Qa3+ Qb4+ Kc2 Rd1 Bc1 Rd3 Bd2 Qc5 Qc3 Qc7 Bc1 Qb7 Bd2 Rg8 h8R Qh1 Rh3 Rh8 Rh7 Qhh6 Re7 Qg7 Qa3 Rh4 Qac5 Qh8 Nc1 Bb6 Re1 e3 Nh2 e2 Bc6 Ng8 f6 Qff3 Bg5 Qff4 Nf3 Ba7 Rg7+ Ne7 Rf1 e1R f7 Red1 Rf2 Rg1 Re2 Rf1 Qcd5 Ng8 Re3 Nf6 Ne2 Rbb1 Qb5 Rb4 Qbd5 Rb5 Qc5+
8/p5kq/p1B2bPQ/K1bb2Q1/1Q1RN3/Pr2RN2/nb3Bq1/qqRr3q b - - 0 1 illegal: No proof kernel
Q1N1r1Rb/1q1p2NR/r2p4/1krP4/1qb2KQ1/2PN4/b1qBBbB1/1n1q4 b - - 0 1 illegal: No proof kernel
7k/q1p2r1n/2P3B1/2qn2Q1/1Bn1RNpq/r2qB1PR/2Q1rR1b/1K1N1r2 b - - 1 2 legal: proof: f4 a5 b4 axb4 e4 d6 e5 dxe5 h3 exf4 h4 g5 h5 f3 Bb2 Bf5 Bc1 Bg6 hxg6 Ra5 Rh2 Ra3 Rh1 Ra8 c4 h5 a4 b5 d4 e5 Kd2 f5 Kc2 e4 a5 g4 g7 Kf7 d5 f2 c5 h4 d6 h3 d7 e3 a6 b3+ Kb2 e2 c6 e1Q a7 f4 Rh2 b4 Rh1 f3 Rh2 Bd6 Qd2 Qde7 d8B Nf6 g8R Nh7 Qd1 Q1e3 Rf8+ Kg7 Nc3 Nd7 Bb5 f1R Qc2 f2 Ra5 Ne5 Qe4 Nc4+ Ka1 b2+ Ka2 b1N Qc2 b3+ Ka1 b2+ Ka2 Qc5 Be3 Qh4 Nge2 Rg8 Ba6 Kh8 Ra4 Bf4 Rf7 Re8 Nd1 Bd6 Rh1 h2 Nf4 Re6 Be7 Nc3+ Kb3 Nd5 Ka2 Re4 Kb1 Re6 Bc8 Re4 Bf5 Be5 Bd2 Re2 Be3 Bd6 Bg6 Be5 Rg1 h1Q Rf6 Q1h2 Rh1 Qg1 Rh3 Bd6 Ne6 Bh2 g3 Re8 Nf4 Ra8 Ka2 b1R Rf5 Rf8 a8Q Rb3 Qa5 Ra3+ Kb1 Rf7 Bf8 Rfe1 Qb5 f1Q Qa5 Qa7 Bb4 Qf3 Qc5 Rf1 Qe7 Qe4 Qg5 Qd3 Ne6 Qh1 Rf2 Qhe4 Nf4 Qe7 Be1 Qec5 Ba5 Nd6 Re4 Nc4 Bb4
1N6/r3B1Q1/1qPb1b1Q/1p4Rn/kPb3r1/qrQqbN2/6p1/r1NRK2B b - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 Qd3 cxd4 Qd1 h5 a3 hxg4 a4 Na6 a5 b5 Ra4 Nc7 Ra3 Nd5 Ra1 Nb6 axb6 Be7 Qd3 Bc5 Qd1 Bf8 c4 g5 h4 d5 e4 Kd7 c5 Kc6 h5 f5 h6 a5 b3 d3 b7 d2+ Kf2 d4 b8Q a4 h7 f3 e5 f4 e6 d3 e7 a3 e8N a2 Bg2 g3+ Kf1 g4 Qa7 Be6 Na3 Bd6 Qc2 Nf6 Qf7 Ra7 Qc4 Nh5 Nc7 Rg8 Qa4 Bc4 Nd5 f2 h8Q Qb6 Qe6 d1Q+ Qe1 Qf3 Qab4 d2+ Ne2 d1Q Qb2 Qdd3 Nf6 Rg5 Rb1 a1B Nd7 Rg8 Qh8 Bf6 Qec3 Kb7 c6+ Ka6 Qd4 Qfe3 Qbc5 Ka5 b4+ Ka4 Nc2 Qa3 Qh7 Qed3 Rg1 Rg7 Bh1 Rg5 Kg2 f1R Ne1 Rf3 Nb8 Re3 Kf1 g2+ Kf2 f3 Qh6 Rg8 Bb2 Rgg7 Rd1 Rg5 Nc2 g3+ Ke1 Rg4 Qcg5 Qb7 Qgg7 Qb6 Rf1 g1B Qc3 g2 Nd4 Ree4 Ba1 Be3 Nc1 Rg3 Nf5 Reg4 Nh4 Qb1 Rd5 Qe4 Rg5 f2+ Kd1 Qh7 Nf3 Qg6 Re1 f1R Bb2 Rg1 Rf1 Qc2+ Ke1 Qd3 Qd2 Bd8 Bf6 Rh3 Qc3 B8e7 Bd4 Bf6 Bc5 Bfd4 Qb2 Bh2 Nd2 Re7 Ncb3 Qh7 Kd1 Bef4 Na5 Bf6 Nab3 Ra7 Be7 Rc3 Qa1 Be3 Nf3 Bd6 Re1 Rc2 Qc3 Rb2 Nc1 Rf1 Nd3 Rb3 Ke2 Rf2+ Kd1 Ra2 Nc1 Ra1 Rg1 Bec5 Kd2 Qg6 Rd1 Qd3+ Ke1 Bg1 Qgh7 Be3 Q7g7
5Q2/b3pB1N/1q5q/1nQnPKnn/P1qp1B2/bqR1Qbk1/rN2B3/2R5 b - - 0 1 illegal: No possible last move
k4N2/qQ3b2/1rbR4/1QRq1B1P/1p1rp2K/Bq1r1r2/3nP2b/1N1q2NB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 d6 e4 Bg2 Nc6 Bf1 Ne5 fxe5 cxd6 Nf3 d5 Ng1 d4 Kf2 g5 Kg3 d5 a4 Kd7 h4 Kc6 c4 b5 c5 Kb7 a5 f5 e6 b3 e7 b4 e8N f4+ Kh2 f3 Kg3 b2 h5 d3 Nf6 d2 Qa4 d1Q Be3 d4 Qe8 d3 Ra3 d2 Nh7 f2 Rh3 Bd6+ Bf4 Ra6 c6+ Ka8 c7 Bd7 c8B Nf6 Qf7 Qb3+ Nf3 d1Q Ra4 Rb6 a6 Ne8 a7 Bc6 Nd2 b1B Qf8 Ba2 Bg2 f1R Be6 Bb8 Bg8 Qdd5 Ra5 Nd6 Rh1 Nc4 Nb1 Nd2 Qc8 Rf2 Bf7 Rd8 Qa6 Bc7 Nf8 Rd6 Kh2 g3+ Kh3 g4+ Kh4 Rd8 Ng1 Rf3 Rc5 Bd6 Bh3 g2 Qb5 g3 Bg6 Bc7 Bgf5 Rd3 Nf3 g1R Bg2 Rf1 Ng1 Rff3 Be5 Bb8 Bb2 Rd4 Ba3 Bd6 Bf1 g2 Rh3 Rd7 Rg3 Bb8 Rg6 Bh2 Rd6 Rdd3 Nh3 g1Q Bg2 Rd8 Bh1 Qdc4 Rf6 R8d4 Rd6 Qg7 Ng1 Qd5 Bc8 Qgf7 Bf5 Qde6 Rd7 Qa4 Rd6 Kb7 Bb2 Bad5 Rc2 Qb3 Rc4 Qfd7 Rc5 Qee7+ Rf6 Bf7 Ba3 Qdd5 a8Q+ Kc7 Qd8+ Kb7 Qd7+ Ka8 Qc7 Ra6 Qcb6 Qa7 Qc7 Rb6 Rd6 Rf1 Qe7 Rff3 Qb7+
2n2NnB/Bb5K/2n2R2/2r1Np2/N2p1rPQ/rk1BRP1r/2b2bnQ/1r6 b - - 0 1 legal: proof: d4 g5 b4 a5 d5 axb4 d6 cxd6 Nh3 d5 Ng1 d4 h4 gxh4 e4 d5 Qg4 d3 Qe2 d4 Qd1 Qd5 exd5 Ra4 Kd2 Ra6 Ke1 Ra8 Kd2 Kd7 c4 Kd6 g4 Kc5 a4 b5 f3 h5 d6 e5 a5 h3 a6 b3 a7 Kb4 d7 h2 d8B h4 c5 e4 c6 b2 c7 h3 Ra2 e3+ Ke1 d2+ Ke2 Bd6 Kd3 e2 Ke4 e1N Bf6 Nc6 Ne2 Bb7 Kf5 Bg3 c8Q Ng2 Qe1 Kb3 Nbc3 b1N Ba3 d1B Qb8 b4 Nf4 Bc2+ Bd3 Bf2 Ne6 Nd2 Na4 Ne4 Nf8 Nd6+ Kg5 Rh6 Bh8 Rf6 Qc7 Rc8 a8N Rf4 N8b6 f5 Kg6 Ra8 Qee7 Nc8 Re1 h1R Nc4 h2 Re3 Rc1 Ne5 h1R Qh4 Rh3 Kh7 Ra5 Qd6 Rc5 Ra1 Rf1 Rae1 Rg1 R1e2 Ra1 Re1 Ka2 Qdh6 b3 Bb4 b2 Ba5 b1R Bb6 Kb3 Ba7 Re4 Qf4 Ra3 Qh2 Rf4 Rc1 Bd1 Rc4 Rb5 Rc5 Bc2 Rd5 Ra5 Rd6 Rc5 Rf6
B1b5/1p1n1Qb1/1BPn1B2/1P1bn3/1b2n1rq/nR2Np1N/R5QK/k1n3Q1 b - - 0 1 illegal: No proof kernel
k1b1r3/1R3bb1/pb1b1p1Q/1rr1q3/B4R1K/P4PBN/nb1Q1r1Q/6NN b - - 1 2 legal: proof: e4 b5 h4 d5 b4 dxe4 c4 bxc4 b5 g5 b6 gxh4 Bd3 a6 Be2 Nc6 Bf1 Na7 bxa7 Qd6 Qg4 Qd4 Qd1 Qd8 g4 Kd7 d4 Kc6 a3 Kb7 d5 e5 d6 c5 d7 h5 g5 f6 g6 h3 g7 e3 Qd6 h4 Qd1 e2 Qd4 h2 Ra2 c3 Nd2 e4 Ra1 c2 Qe3 h3 Ndf3 c4 Ne5 c3 Ra2 Qe8 d8Q Ne7 g8Q Nd5 Nf7 Rb8 a8N Qe5 Ng5 Nb4 Bb2 c1B Qe8 c2 Qh5 Bg7 Qgh7 Re8 Nb6 Ka7 Na4+ Ka8 Bd4 Bb2 Nc3 c1R+ Nd1 Rc5 Qd2 Rbb5 Ra1 Na2 Q5h6 Rc1 Rb1 Rc4 N1f3 Rcc5 Rg1 h1B Rg4 h2 Ng1 Bf3 N5h3 h1R Rf4 Bh5 f3 Bf7 Kf2 e3+ Kg3 e1B+ Ndf2 Rh2 Kh4 Rg2 Bd3 e2 Bc2 Rh2 Ba4 Rg2 Qa5 Bb4 Nh1 e1B+ Bf2 Rh2 Bg3 Rf2 Qd8 Ba5 Qc2 Bb6 Qe2 Bb4 Qdd2 Rf1 Qh2 Rf2 Rg4 Rc3 Re4 Bd6 Rf4 Rcc5 Rc1 Rd5 Rc7 Rdc5 Rb7
1r5r/1q1b1q1R/1qR2nb1/4B1B1/1r4Bp/QP2P1NK/1n1R1p1p/2bQk1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 g4 Ke6 Kg2 Kd5 c4+ Ke4 e3 f5 b6 d5 c5 h5 b7 a5 c6 d3 b3 f3+ Kh3 f2 c7 a4 g5 a3 g6 a2 g7 d2 Kh2 f4 Nf3 h3 Ba6 f1Q Ne5 f3 Bc4 h4 Nd3 d4 Ba3 Bd7 c8R Na6 b8B Nb4 Bg3 Nf6 g8Q Rb8 Qc2 d1B Be1 Qb6 Nf4+ d3 Nh5 f2 Qe6+ Kf3 Nd2+ Ke2 Qd6 Bg7 Qb2 Bc2 Rc6 Bf8 Rc1 a1Q Nf3 Qa2 Bf7 d2 Be6 d1R Bc3 Rd4 Bg4 Nd3 Qb1 Rf4 Be5 Rb4 Ng1+ Kd2 Qc5 Nb2 Ng3 Qc4 Rc7 Qe4 Qd6+ Bd3 R1c6 Qf4 Qc2+ Ke1 Qcc5 Bg6 Qcd4 Be6 Rh7 Bd7 Qd3 Qb1 Qa6 Qbe4 Qd5 Rc4 Be7 Rb4 Qd6 Qd5 Qa3 Qf7 Qd5 Qc4 Qd4 Qca6 Qd3 Qab7 Bd8 Ne8 Bg5 Nf6 Rc4 Rb5 Rc6 Bb4 Qb1+ Kd2 N1e2 Ba5 Rhc1 Bc3 Ng1 Rb4 Bd1 Ke1 Rc2 Bd2 Qba1 Nc4 Qd4 Nb2 Bg4 Bc1 Qd5 Rhd8 Qf3 Rh8 Rd2 Rf4 Kh1 h2 Kg2 Ra4 Kh3 Rb4 Qd1+
nQ3B2/N1b1qq2/q1Bbr1p1/1R2NP1b/r6k/nNR1K3/PBp4p/r5Q1 b - - 0 1 illegal: No proof kernel
8/R3q3/1qRbPNnr/1k2p1Kp/1P3rb1/pQ1qrN1R/1N4nQ/n2BB3 b - - 0 1 illegal: No proof kernel
1b1N2qk/1NBK2RR/p4P1Q/1n2q1Bn/Q3r2P/4pn2/b1q2p2/3BR1br b - - 0 1 illegal: No possible last move
4B1kQ/1rrn1n1p/3Q4/Pqp1qq2/pRQ5/1b1B4/R1NbrNPB/1K3n2 b - - 0 1 illegal: No proof kernel
3R2qN/b6p/2B2KbP/3NRnN1/3PpnR1/rn1r1b2/2p2qq1/4QQkB b - - 0 1 illegal: No possible last move, all moves rejected
1kr2QK1/1rQq3p/2B1pBRP/4R3/1p1Pqb1B/b7/nN2N2n/qrR3n1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 f5 b5 fxg4 b6 d3 Qd2 axb6 Qd1 b5 Be3 b4 Bg5 Nf6 Bc1 Ng8 c3 d5 Qb3 d2+ Kd1 Qa5 Kc2 d1N Kd2 Qc7 Ke1 Qd8 Kd2 d4 Bh3 d3 Ke1 d2+ Kf1 Bf5 Bg2 Bd3 exd3 Qb6 Ke2 Qa5 Bf1 Qd8 h4 Kd7 a4 Kc8 f4 g5 a5 b5 f5 e6 h5 g3 Kf3 g4+ Ke4 g2 Ke5 g3 d4 Ra6 f6 Qd7 c4 Qe7 h6 Qf7 c5 Qg7 c6 Ra7 a6 Nc3 c7 d1R Nd2 Rb7 a7 Na2 a8R Qd7 f7 Nf6 Qc3 b3 Ra5 b2 Nc4 b1Q Nb2 Ba3 f8B b4 Ne2 g1Q Bg7 g2 Bg5 Qd3 Rh3 Rb1 Rg3 Rg8 Bh4 Nc6+ Kf4 Rh8 Kg5 Ng4 Re5 Nh2 Kf6 Qe4 Rg6 Qh1 Qc2 g1B Bg2 Be3 Qc5 Re8 Qf8 Bf4 Bf3 Qd8+ Kf7 Qd7+ Kg8 Qc1 Rh5 Ne5 Bgf6 Qd1 Bh1 Nef3 Re5 Ng1 Bg2 Ra7 Bh1 Kb7 Bg2 Rc8 Bf3 Ka8 Bh1 Rb7 Bg2 Rcb8 c8Q Qe1 Qcc5 Rc8 Bh1 Kb8 Qb6 Qc2 Bc6 Qe4 Qa5 Rd1 Rc1 Qc3 Na4 Qa1 Nb2 Rf1 Rc4 Rb1 Rc1 Nf1 Qb6 Nh2 Qc7+
6qB/Q1b2rP1/N4Qk1/pK1np1r1/1pNq1bb1/1RP1qB2/3N2Q1/n1R1r3 b - - 0 1 illegal: No proof kernel
r2Qqq1n/4R1Pb/N1P2r1Q/2q5/nk3p1p/1bR2N1n/Rp2K3/2bB1BB1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 e4 Ke7 c4 Kd6 a4 Kc5 g4 d5 g6 f5 g5 h5 e5 b5 e6 h4 a5 d3 g7 b3 g6 f3 a6 d2+ Kf2 b4 a7 b2 e7 b3 e8Q d4 Qde1 d1B Q1e6 d3 Ke1 f2+ Kd2 Ne7 g8R Rh6 g7 Rf6 Qe4 Kb4 Rh2 Na6 Nc3 b1Q Q8c6 Ng6 Ra3 Qe8 Qd4 Nc5 Nf3 Na4 Ne4 Nh8 Qd8 Qc2+ Ke3 d2 c5 Be7 Bb2 Ba6 Bd4 Bd3 Rh3 b2 Ra2 Qc1 Rf8 Bb1 Rf7 Bb3 Ke2 d1N Qe6 Bd6 Re7 Bf4 Qed6 Be3 Qf4 Qc3 Qh6 Bc1 Be3 Rc8 a8B Rb8 c6 Qc5 Bb7 Ra8 Bc8 f4 Ng3 Qf8 Bg4 Bh7 Ne4 Ndc3+ Kd3 Ne2 Rg3 Ng1 Bd4 Nh3 Ke2 Qh5 Nc5 Qhe8 Na6+ Kc4 Nh2 Bd2 Rc3+ Kb5 Bf5 Bc1 Bg2 Nf7 Bc2 Nh8 Nc7+ Ka5 Bd1 Kb4 Na6+ Kb5 Kf3 f1Q+ Bf2 Qh1 Ke2 Qg1 Bf1 Qg5 Nf3 Qc5 Nc7+ Ka5 Bg1 Kb4 Na6+
1n2QNrb/3n2pR/3B1Q2/2q2qNP/b2p1nQ1/5bq1/1R1PRrp1/1B2K1k1 b - - 0 1 illegal: Other
2bqqR2/2Q2P1r/3p1B1P/B2pQRrb/2Br1QNn/1n2p2k/1b2q2N/1K6 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 h5 b4 axb4 g4 hxg4 d5 c6 Bf4 cxd5 Bh6 Nc6 Bc1 Nb8 Kd2 Kf7 f4 Kf6 a4 b5 c4 g5 Kc2 e5 h4 e4 a5 g3 h5 g2 h6 e3 a6 b3+ Kb2 g4 c5 d6 c6 b4 a7 g3 c7 Nc6 Nh3 g1Q Qh5 g2 Nf2 Qh2 Bc4 g1R Nd2 Nge7 Nf3 Bg7 Kb1 Rg5 Rf1 b2 Bd2 Na5 Ra3 Qg2 Nh2 Ng6 Ra1 Rb8 a8Q Nb3 Qa4 Rh7 Ra2 Nh4 Nfg4+ Ke7 f6+ Ke6 f7 Kf5 f8B Qe2 Be7 Ra8 Qae8 Ra4 Bf6 Bh8 Qhf7 Bg7 Kc2 b1B+ Kb2 Bc2 Qff8 Bd1 Kb1 Nc5 Rf3 b3 Ba5 b2 Rf2 Nb3 Qe5+ Kg6 f5+ Kh5 Bb5 Rd4 Bc4 Ng2 Ra4 Kh4 Rb4 Kh3 Rb8 Nh4 Ra8 Ba6 c8Q Qe8 Qc7 Bc8 Be7 Bh8 f6 Qd8 Rf5 Bg7 Ka2 b1Q+ Ka3 Qa1+ Kb4 Qea2 Rf4 Bf5 Qe6 Qc2 Ne5 Bh5 Neg4 Rd3 Rb8 Qab1 Ka3 Qe2 Qe4 Bd7 f7 Bf6 Qe8 Qc8 Rf1 Ba1 Rf5 Rd4 Qf4 Qe4 Bf6 Bb2+ Ka2 Be6 Qee7 Qh8 Rg8 Bc8 Re8 Qe6 Kb1 Qd7 Qee5 Qd8 Ka2 Qf8 Kb1 Qfe7 Rh8 Qee8 Rf8
7r/3nbpRq/r2N2b1/P2b1NBQ/BPR2K1n/q3n3/1R3prp/2QB3k b - - 0 1 illegal: No proof kernel
3kr1Nn/q2n1pBQ/2PP2Qp/1b1N4/r1prRbK1/1q1B2R1/4n1B1/3q2N1 b - - 0 1 illegal: No proof kernel
b2r4/1q3p1p/B2p2N1/4R1KQ/Qbbk1BQn/1r1r2P1/1qnRqPN1/5N2 b - - 0 1 legal: proof: d4 b5 b4 c5 h4 g5 a4 gxh4 d5 cxb4 axb5 e6 Qd3 exd5 Qd1 d4 Kd2 Ke7 e4 Kf6 c4 Ke5 c5 a5 g3 b3 c6 a4 b6 h3 b7 a3 c7 h2 Kd3 b2 Nd2 b1Q+ Ke2 d3+ Kf3 a2 Kg4 Na6 b8Q Qb7 Qa7 Rb8 Ne2 Qe7 Nf4 Nb4 Qaa4 Kd4 e5 Nh6+ Kh5 Rg8 e6 Nf5 Ng2 Nh4 Qe2 Qe8 e7 Rh8 Rb1 a1Q Kg5 Qb2 Qa5 Nc2 Qg4+ Qe4 Ra1 Ba6 c8N Rb3 Ra2 Bc4 Rg1 h1B Be2 d6 Nf1 Bg7 Bf4 d2 Qa4 Q8c6 e8Q d1R Ne7 Qb7 Qeb5 Rd8 Ng6 Rdd3 Qbf5 Rdc3 Bd3 Qe2 Qh5 Bh8 Qfg4 Bg7 Bf5 Rd3 Bc8 Qb8 Ba6 Be5 Nge3 Ba8 Ng2 Qb7 Rh1 Kd5 Rg1 Bc3 Rh1 Bb4 Rh3 Qb1 Rb2 Kd4 Rh2 Na1 Rd2 Nc2 Rh1 Qee1 Nfe3 Qed1 Re1 Qb2 Nf1 Qdf3 Re3 Qe2 Re5
Br1nNr2/q1n1pQ1K/1Rb2P2/1P1RBB2/qk2N3/2Rqn1b1/4p2p/3r1Q2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 b4 d5 c4 Kd7 f4 Kd6 g5 a4 b6 a3 f5 a2 f6 e3+ Kd3 h3 b7 h4 b5 Kc5 g6 h2 g7 e2 Qe1 h3 Na3 Na6 b8R Bd7 Nf3 Nh6 g8Q Nc7 Ng5 Bc6 Bg2 Nf7 Bb2 Bh6 Rc1 a1Q Rb6 Rb8 Qf1 Kb4 Ne4 Bf4 c5 Bg3 Nc4 Qa7 Rc3 Qd6 Qe8 Nd8 Qf7 Rf8 Rg1 Qf4 Ncd6 h1Q Ne8 h2 Bf3 Qg2 Ba1 Qh3 Rg2 Bh4 Rg5 Bg3 Rf5 Bb7 c6 Qfh4 Kd2 d3 Ke3 d2 Kd3 d4 Rd5 d1N Bg2 Na8 c7 Bc6 c8B Ne3 Bf5 Nc7 Nc5 Qh6 Ke4 d3 Bf3 d2 Bh1 Bh4 Ke5 d1R Ne4 Qh7 Kf4 Bg3+ Kg5 Q7h4+ Kg6 Qf4 Bf3 Qhg4+ Kh7 Qd6 Rc2 Qgf4 Be5 Qd7 Rc3 Qg4 Rdc5 Qd3 Rd5 Qf4 Nc5 Qfc4 Ne4 Qca2 Bh1 Q2a4 Rdc5 Na8 Nd2 Bd7 Bg2 Nc7 Ba8 Bc6 Ne4 Bf2 Rd5 Be1 Qe6 Bg3 Qf7
4NQ2/r3p2p/1n1QK3/q1b2PBb/6N1/1B4rp/RPB2n1N/rRqb1kq1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 c4 Kg6 g4 a5 f4 d5 g5 Kh5 b6 Kg4 c5 Kg3 g6 a4 g7 a3 b7 e3 Kd3 Kf2 c6 a2 c7 e2 Rh3 e1Q Na3 Ra7 Re3 h3 Rb1 a1R Rg3 Nf6 g8N Ng4 Nh6 Nd7 b8Q Nb6 Nb5 Bg7 Nd6 Rg8 Ne8 Be5 Bg2 Bd6 Be4 Kf1 Nf3 Bc5 f5 Bd7 c8B Nf2+ Kc2 d3+ Kb3 d4 Bg5 d2 Bc2 d3 Ng4 Bc6 Be6 Qc8 Qd6 Rg6 Qc1 d1Q Qcf4 d2 Kc3 Ke2 Beb3 Kf1 Qb8 Qc1 Qfd6 Qd8 Qa8 Bb5 Qab8 Be2 Qa8 Bb4+ Kd4 d1B Ke5 Bc5 Qc8 Rg7 Ke6 Rg8 Nef6 Qc7 Qf8 Qa5 Ne8 Qc6 Ne1 Qh1 Re3 Qh2 Nf3 Qg1 Re4 Rg7 Ra4 Rg8 Ra2 Rg7 Ngf6 Rg8 Bf4 Rg4 Bg5 Rg3 Ng4 Qg2 Nh4 Rc7 Ngf6 Bh5 Ng4 Ra7 Nf3 Qg1 Nfh2+
6nN/B3pp1R/Q1Q2knq/3RqB1P/1NK5/b1P1q1pb/3rN3/b3rQ1r b - - 0 1 illegal: No possible last move, all moves rejected
1b4rb/2P2kPB/p7/2BN1qq1/1K1n1R1p/1RN2b2/QNpQ2Br/2qn3n b - - 0 1 illegal: No proof kernel
n1n2N2/1RPBR1pK/rn3pBQ/rN6/1b1B2qk/b3Q1Rq/3p1Pb1/4q3 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf4 a5 h4 d3 c4 a4 e4 d2 b6 a3 h5 d4 h6 d3 h7 b3 b7 a2 c5 g3 c6 g2 c7 b2 Nh3 g1Q Na3 b1Q Qb3 d1N Be3 d2 Qd3 Qd7 Ng5 Nb2 Nb5 Na4 Bh3 Ba3 Ne6 Ra6 Nf8 Ne7 Qe2 Qb3 Re1 a1B Ba7 Bb4 Qe3 Bb2 Bb6 Rg8 h8Q B2a3 Bc5 Qd4 Bd7 Nb6 Rh3 Na8 Rg3 Ra5 Re2 Qe1 Kg4 Qe6+ Kh5 Qd3 e5+ Kf5 Qhh6 f6 Be8 Nd7 b8R Ndb6 Bd4 Bb7 Bd7 Bg2 Rb7 Qe4 Be8 Qd7 e6 Nec8 e7 Qde6 Bd7 Ra6 Nh7 Rd8 e8B Qd3 Bc6 Rd5 Nf8 Qc4 Qb3 Qd7 Re7 Qde6 Bcd7 Qc3 Na7 Rda5 Nb5 Qc4 Rg5+ Kf4 Kg6 Qh3 Kh7 Qce6 Bg6 Qef5 Rh5+ Kg4 Qbe3 Qe6 Rf5 Qc4 Rf3+ Qe6 Bh5+ Kh4 Rg3 Qeg4 Bg6+
1B2r1n1/2p2nqp/1r4P1/1Bb1p2Q/1q1nr3/k1NKN1Pb/Rq3B1Q/5R1R b - - 0 1 illegal: No possible last move, all moves rejected
R3r3/1P2R1Bb/kp3qQN/2nBq1nb/1r1P3K/8/Bbqpp1N1/NQ2r3 b - - 0 1 illegal: No proof kernel
3N4/P2nkqrB/2B2pqp/Nr1b4/PQ2Rq1B/Q2n2p1/6Rn/1b1KN1b1 b - - 0 1 illegal: No possible last move
b2r1q2/P4k2/2B1p3/1r2Pq1p/3bNQ2/RR3QnN/nbK1Q1Rp/qrB5 b - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 c4 f6 g5 fxg5 cxd5 gxh4 Qb3 h3 Qc2 Bd7 Qd1 Bc8 e4 h5 d4 c5 Kd2 b5 a4 g5 f4 e6 a5 b3 d6 c4 e5 c3+ Kd3 g4 d7+ Kf7 f5 c2 f6 b2 a6 g3 d5 g2 d6 b4 a7 h2 Ne2 g1Q Qe1 b3 Nd2 b1R Qh4 b2 Bg2 Bb7 Bc6 Ne7 Ra3 Nf5 Qf4 Ng3 Ne4 Na6 Kc3 Qb8 d8Q Nb4 d7 Bc5 Kb3 Qf1 Ng1 Na2 Nh3 Bd4 Rg1 Qa6 Qb6 Qf8 d8R Rb8 Qb5 Ba8 Rg2 Rb7 Rb8 Rg8 Be3 c1B Kc2 Qa5 Qe2 Rb5 Bd2 Qc3+ Kd1 Qf3 Kc2 Qg4 Qff3 Qf5 Bf4 Qd6 Bd2 Rd8 Be3 Qf8 Bf4 Ra5 Rbb3 Rb5 Be3 Bd2 Qf4 B2c3 Bc1 Qe7 Qef2 Qh7 Qg1 Kg6 f7 Ra1 f8Q b1Q+ Kd1 Bb2 Qf3 Qd6 Q8f4 Qf8 Nf6 Kf7 Qgf2 Qhf5 Q3e2 Bbc3 Ne4 Qb2 Qf2f3 Rb1 Q4g4 Qa1 Kc2 Bb2 Qgf4
3R1Q1K/Pk2b2Q/p4pq1/1NR1n2B/PR1rrQ2/1q2Nb2/2r1pbBn/3n4 b - - 0 1 illegal: No proof kernel
Q6N/P2q2Rp/kB1n1bpK/q2r4/QbpN2BR/P4q2/3Nrn1r/5B1b b - - 0 1 illegal: No proof kernel
4rN1K/pQ5n/4rPkP/1ppRb1q1/Q2NR1N1/BBn2Q2/3qq2r/4bb2 b - - 0 1 illegal: No possible last move, all moves rejected
1Q5K/p5Pb/B1p1Q1B1/P4r2/3qr2q/1n1bR3/RNk1N1pq/r1Q1bnR1 b - - 0 1 illegal: No possible last move
1nrRnq2/p2r1pQN/4BQ2/R2b2PQ/1br1n1KB/3p3P/1Bq2b2/5Nk1 b - - 0 1 illegal: No proof kernel
B2b1rk1/QN1n4/6NR/4bq2/3R1bpB/KR1n2P1/1pP3pr/b1b2QrQ b - - 0 1 illegal: No proof kernel
n1r4q/6Nb/1rn1R1B1/1N1Kb1k1/B1Pp4/1nNp1QRQ/1Pp4r/3rB2r b - - 0 1 illegal: No possible last move, all moves rejected
b3r2n/3b4/K1Nk1q1b/R2Q3P/BP1n1B2/p1Qp2p1/r1Nb1b1R/2QN1r2 b - - 0 1 illegal: No possible last move
2rb1rkb/3N4/1nr1n3/2B3PQ/1pR1Kp1p/3RQN2/1qP1N1Br/1rB4b b - - 0 1 illegal: No proof kernel
1r1RN1K1/2rn1N1Q/1r2Q3/2QpBPp1/2B2qr1/1n1PB2p/3n1b1k/1R1b2r1 b - - 0 1 illegal: No proof kernel
5bBq/K3R3/N1Nn3P/BQ1br2b/1P1pkb2/1p1R1pQn/1r1b2rN/2R5 b - - 0 1 illegal: No proof kernel
4NK1n/1B2Q2R/3n1p2/2n1PpRR/kqbbQ1rb/p1n1QNnP/8/B1r5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 e6 Ra4 exf5 Ra2 Be7 Ra1 Bf8 Kf2 g5 Kg3 d5 e4 Kd7 b4 a5 c4 a4 b6 Kc6 c5 a3 e5 d3 h3 Kb5 c6 d4 c7 Ne7 b7 Rh4 Qe2 Ka4 b5 d2 b6 d1N Qa2 d3 Bb2 d2 Nf3 Nd7 b8R Nf2 b7 d1N Bg2 Ng6 Rg1 Be7 Qd5 Qf8 Nbd2 Nh8 Ne4 Nc3 Nd6 Nc5 Rac1 Be6 Qe4+ Bc4 c8Q Ra6 Bh1 Rc6 Qe8 Bd8 Qe3 Qe7 Ba1 Nfe4+ Kh2 Qf8 Qe7 g3+ Kg2 g4 Ne8 Nd6 Ra8+ Ba5 b8Q f6 Qbb7 Rc7 Qbe4 Rc6 Ng7 Qb8 Rcd1 Qb4 Rg8 Rc7 Ne8 Rc8 Rd3 Bb6 Rg5 Ba5 Kf1 g2+ Kf2 Bb6 Rh5 g3+ Ke1 Rg4 Kd2 Ndb7 Rd7 Nd6 Qf8 Rc7 Rdh7 Rc6 Qe7 Rc7 Rd1 g1N Rc1 Nge2 Rg1 g2 Kc2 Ng3 Kd2 Na6 Kc2 Ba2 Kd2 Ba5 Kd3 Bc4+ Kd4 Rc5 Rc1 g1B Rd1 Bf2 Rg1 Rc7 Rg2 Nc5 Rg1 Bb6 Bg2 Rh4 Bh1 Nf1 Rgg5 Rg4 Bg2 Bh4 Bh1 Ng3 Bg2 Nd1 Bh1 Bb5+ Kd5 Bd3 Bg2 Bc4+ Kd4 Rb7 Nh2 Qb5 Q4f4 Ba5 Bc6 Bd2 Nf3 Rb8 Qee4 Nc3 Ba8 Qa5 Bd5 Rb1 Bb7 Na2 Qfe3 Rc1 Rgg7 Qb4 Rgg5 Bb5+ Kd5 Bc3 Qb1 Bd4 Qbe4 Nd7 Ke6 Nc3 Qf8 Be2 Ke7 Nc5 Qf7 Bf1 Kf8 Bc4 Qe7
R1RQ1rnr/2NB1RN1/1rqpn1PP/3b2pK/5Nr1/2rQ4/5p1k/1nb3B1 b - - 0 1 illegal: No possible last move
1N1b4/4R1b1/bP1BNb2/qQR1rnRk/4BKpn/1pQP4/2pr4/n1Q2b2 b - - 0 1 illegal: No proof kernel
rbrB1qNK/2k3B1/rp5N/1p1b3Q/1P6/PnnR1N1p/b1r1B3/3rR1Q1 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 h4 exf4 Qb3 gxh4 Qc4 a6 Qb5+ axb5 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 f6 Kg6 h3 b4 h4 e4 h2 d4 h3 g4 b6 e5 c4 e6+ Kc7 a3 f3 g5 f2 e7 c3 e8Q f5 Bb2 f4 Nd2 c2 Ne2 c1R Ng3 f3 Nf5 Rc2 Be2 f1R Nh6 f2 Nf3 Nd7 Re1 Bd6 Kg7 Ngf6 Qh5 Nc5 g6 Nb3 Rd1 Ra6 Rd3 Ra1 Re1 f1R Bc3 h1B Bb2 Bg3 d6+ Kd7 d5 Rd1 Bd4 Ne4 Bb2 Re8 Kh7 Bh2 g7 Nc3 g8N Qf6 Ba1 Qf8 Kh8 Bb7 Bb2 Rea8 Ba1 Kd8 d7 Bb8 Bb2 Kc7 d8B+ Kc8 d6 Bd5 d7+ Kb7 Bf6 Kc7 Bg7 Rg1 Bc1 Rg4 Bg5 Re4 B5f6 Re8 Be7 Rc8 d8Q+ Kb7 Qde8 Kc7 Qeg6 Bc4 Qg1 Bg2 Nd4 Bgd5 Bef6 Nc5 Bg5 Ba2 Nf3 Nb3 Bd8+
Q2N1bK1/b1R4p/1BP1N2P/4pq2/B2n2Qn/2r2prB/1k2rr1R/R1n3r1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 Be3 bxa4 Bc1 g5 e4 gxf4 Bd3 d5 Kd2 Bb7 Bf1 d3 Ke1 d4 Qg4 Na6 Qd1 Bd5 exd5 Nb8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 f5 Ke6 a5 Kf7 e5 h4 a3 g4 a4 b5 f3 c3 a2 b6 f2 d6 f4 d7 f3 g5 a3 b7 Nc6 b8Q Nge7 g6 Nf5 h5 Nh4 h6 Qg5 d8R Rg8 Bh3 f1R g7 d2 Ne2 d3 Rc8 Rf2 Qg1 d1R Be3 d2 Bb6 Kb3 c4 Nd4 c5 Kb2 c6 Rc1 Nf4 d1R Ne6 Rc3 Qg4 Rg1 Rc7 Ra6 Qa8 Qf5+ Ke8 Re2 Nd2 Ra5 Nb3 Ra4 Re1 a1N Na5 a2 Rh2 Nab3 Nb7 a1B Nbd8 Ra2 Rf1 Nc1 Rd1 Rh8 g8B Rg3 Bf7 Rg8 Bg6 Qf4 Bc2 Qf5 Ba4 Rg1 Qg7 Rf2 Qd7 R8g3 Re1 Ka3 Qg7 Rae2 Qg4 Ka2 Rd1 Bb2 Rf1 Bba3 Rd1 Kb2 Re1 Bac5 Rf1 Qg5 Kf7 Qf6+ Kg8 Qf5 Ba5 Ba7 Bb6 Ncb3 Ra1 Nc1 Bg2 Rec2 Bf1 Rce2 Bh3
1N1r1R2/3b1p1P/pKRrR1b1/n1p1n3/BPb1Q3/B1kq4/2Nb4/1Qb1B2n b - - 0 1 illegal: No proof kernel
4b3/1nRPBN2/4BKbb/1kN1n2r/p5p1/5PrB/pQ1nn1Qn/R1q1Q3 b - - 0 1 illegal: No proof kernel
1B1rbN2/2pQnB2/1bQ1K1Pq/4P2b/2p2b2/1p1Nk1bN/1rQ2n2/1R3Rn1 b - - 0 1 illegal: No proof kernel
R1b1b1BQ/2p1R1rp/Bp1Rq3/2k1N1NP/2rQb1b1/3n1nPN/8/K2nb3 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 g4 Bb2 g3 Bd4 d5 cxd5 e6 Bf2 exf5 Qb3 gxf2+ Kd1 f4 Kc1 Ra7 Qd1 Ra8 Kb2 Ke7 d4 Kd6 h4 f5 a4 b3 e4 b6 a5 f3 a6 f4 h5 Qe8 a7 Nd7 g3 Ngf6 Ra2 Nc5 Na3 Nfd7 Ka1 Ne5 Rd2 Rg8 Nh3 Bg7 Bb5 f1N Rhh2 Qg6 Rhe2 f2 Re3 f3 Nc4+ Ke7 Ree2 Ne3 d6+ Ke6 d7 f1B d8Q f2 Re1 Be2 Rd3 f1B d5+ Kf7 d6 Ke6 d7 Bg4 Rd4 Nf3 e5 Qf6 Qd3 Nd1 Rd5 Bf8 Qd4 Rg7 Re4 Bd6 Qh8 Bd3 Re2 Bg6 d8N+ Ke7 Re4 Be8 Ne6 Qf7 Neg5 b2+ Ka2 b1B+ Ka1 Qg6 Re1 Bbf5 Re2 Nd3 e6 Bc6 Re3 Bb4 Ree5 Be4 Rd8 Kf6 e7 Be1 e8B Qh6 Bf7 Be8 Re7+ Kf5 Qg1 Qe6 Bg8 Kf6 Rd6 Kf5 Ne3+ Ke5 Qf2 Bd5 Bc4 Kd4 Bb5 Kc5 Nc4+ Ne3 Qb2 Nd1 Ne5 Be4 Bc4 Rb8 Qc3 Rb7 a8R Ra7+ Kb1 Ra4 Ba6+ Rc4 Ka1 Nc1 Qb2 Nd3 Qd4+
N1NB3n/P1p1K1NB/P2p2p1/r4k1b/1b3nr1/3b2RQ/4bnQ1/q1B2bR1 b - - 0 1 illegal: No proof kernel
4r1N1/p1N2KnB/1Rp2p2/b2Q2rr/1Qb2R1P/Pnrrq3/QB6/1b1k1R2 b - - 0 1 legal: proof: f4 h5 g4 hxg4 b4 e5 b5 exf4 b6 Rh3 c4 Rh5 c5 Rh8 c6 dxc6 bxc7 Qg5 Ba3 Qe7 Bc1 Qd8 Kf2 Ke7 e4 Ke6 d4 g5 h4 b5 a3 f6 d5+ Ke5 d6 b4 d7 b3 Rh3 b2 Re3 g3+ Kf3 g4+ Ke2 f3+ Kd3 Kf4 e5 g2 e6 g3 e7 f2 e8R Ne7 Nf3 g1R Ne5 g2 Qc2 Nf5 Nf7 Rh5 Nh6 Ng7 Ng8 Qe7 d8Q Nd7 Nc3 b1B Re4+ Kf3 Bb2 Ba6+ Nb5 Nc5+ Kc4 Rc8 Qd5 Nb3 Bd3 f1R Rf4+ Ke3 Bg6 Rc1 Bh7 Rgd1 Rd8 Ra8 c8Q g1R Qg4 Rd3 Rb8 Qe8 Rb7 Bb4 Rb6 Bc3 Qh2 Qe6 Qhg2 Re8 Qh2 Ba5+ Qc2 Nd4 Kc5 Qe5 Qc4 Kd2 Nc7 Qe3 Kd6 Rcc3 Qa2 Nb3 Kd7 Bc4 Kd6 Bc2 Raf1 Rg2 Qd7 Rg3 Qe7 Bb1 Kd7 Rgg5 Qe4 Rc8 Ke7 Re8+ Kf7 Ke2 Qe7 Kd2 Qb4 Kc2 R1f3 Kd1 Rf1+
2N4r/1bk1b3/nR1n2r1/rQ4P1/bB2BNK1/PNrn1pp1/Q2p1R2/1q3R2 b - - 0 1 illegal: No proof kernel
3qb3/K3brN1/Q3nQbB/4N1pB/P1B2Pn1/1pb2R1R/R2krp2/1n3r2 b - - 0 1 illegal: No proof kernel
1N1b1b2/3rB3/n1n2qQr/P2B2b1/b1KR1pRN/2pQ3p/2R1P3/k3Q1rn b - - 0 1 illegal: No proof kernel
2rbb2K/3rR2N/1Qp1PN1B/2prBr2/1bq1p3/n3P1nQ/Q7/n1Rk3N b - - 0 1 illegal: No proof kernel
R1RBr3/2nb2bK/1PQ1NQ1p/2np2b1/8/2bp2NP/1n2rBqB/kN4r1 b - - 0 1 legal: proof: e4 b5 d4 f5 f4 c5 a4 cxd4 axb5 g6 Be2 Bb7 Bg4 fxe4 f5 Ba6 f6 Bc8 Bf5 gxf5 Kf2 Kf7 Kg3 Ke6 Kh4 Ke5 Kh5 a5 c4 d5 b4 a4 g4 h6 Kg6 f4 b6 f3 b7 f2 b5 f1R g5 e3 h3 a3 c5 e2 b6 e1N c6 a2 f7 Nd7 c7 Nd3 b8B N7c5 Qh5 Nf6 Bb2 Bg7 f8B Ne8 Qf3 Bd7 c8Q+ Nc7 Bc1 Nb2 Bd2 d3 Ne2 Rg1 Ng3 Kd4 Qf6+ e5 Be7 Qg8 Be1 Kc4 Qb7 Kb3 Qbc6 e4 Bd8 e3 Bf2 e2 Rh2 e1B Rh1 Qf8 Rh2 Rg8 Kh7 Bd2 g6 Bg5 Rh1 Rg2 Rc1 Qe7 Rc2 Qe4 Rc1 Rg1 Rc2 Qg2 Rc4 Bh8 g7 Re8 g8N Bg7 Ne7 Ra4 Rc2 Re4 Ng6 R4e6 Nf4 Re2 Nc3 Ka3 Ne6 Kb3 Re1 a1B Nb1 Ka2 Rc4 Nba4 Rec1 Bd4 Rb4 Nb2 Ra4+ Kb3 Ra8 Bc3 Na3 Ka2 Nb1+ N7a6 Nh1 Ka1 Bh2 Be5 Ng3 Bc3 Rc2 Bb4 Nc7 Nb3 Qb7 Ba5 Rc6 Nbc5 Ne6 Bb4 Rcc8 Bc3 Rab8 Nc7 Qc6 Be1 Ra8+ Ba5 Rab8 Bc3 Ra8+
1N4k1/2BBnQ2/PK3n2/1Qr1qN1p/1p2R1P1/2R1rRrB/n1b1p3/2bb2n1 b - - 0 1 illegal: No possible last move, all moves rejected
2Q3QR/q2Nrp2/4NP1P/b2bbkp1/K1Q1R3/3pBn2/n1N1r3/1b1Br1n1 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 Ke7 h4 Ke6 e4 a5 f4 d5 c4 g5 Kc2 d3+ Kb3 d2 e5 a4+ Kb2 g3 b6 d4 h5 a3+ Kb3 g2 c5 a2 h6 d3 c6 Bb7 c7 Nd7 c8Q Nf6 Nh3 g1N Na3 Nd5 Qdc2 d1R Be2 Qc7 Be3 Ra7 Qc4 Kf5 e6 Ne5 Nc2 Re1 Bd1 Nc3 e7+ Qd7 e8Q Nef3 Rc1 Bd5 b7 a1B b8N Na2 Rh2 Be7 Re2 Bd8 Qg8 Ba5 Rb1 Be5 Rb2 Qe6 Ka4 b3 Nd7 Qb6 Rb1 b2 Rc1 Kg4 f5+ Qd4 f6 b1B Nf4 Kf5 Ne6 Rc7 Rh2 Qa7 Rh4 Rb7 Re4 Rb2 Qg7 Re8 Qg8 Re7 Nb4 Qb6 Rc3 Rh2 Nc2 Qa7 Rb3 Rf2 Rb8 Rfe2 Qcd8 Qc7 Qg7 Qb6 Qdc7 Qa7 Rh8 Ba8 Qg8 Bd5 Qcc8
1k1qR1B1/5p1P/r1r3p1/B3rQ2/3pbNb1/1Q1QBP1n/n3R1Kb/1n1r3N b - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 e4 a5 c4 d5 h4 Kd7 c5 Kc7 b6+ Kb7 f3 d3 Kf2 a4 e5 a3 e6 d4 e7 a2 e8Q g3+ Kg2 b3 h5 d2 h6 b2 Rh2 Bd6 Qea4 Na6 c6+ Kb8 b7 Rh7 Ne2 Ne7 Qab3 Nd5 Nbc3 b1B Nf4 Nab4 Ne4 Ra6 Nf2 Be4 Bd3 Bg4 Nh1 Nc3 Qdc2 d1R Be3 Nb1 c7+ Ka7 c8Q Rc6 Qce6 Kb8 Qf5 Rh8 Qcc3 Re8 Bc2 Re5 Qd3 Nd2 Rc1 a1R Rb1 Raa6 Rb2 Ka7 b8B+ Ka8 Ra2 Nb1 Bc7 Ka7 Ba5 Kb8 Nf2 Bc7 Rh1 Bd6 Re1 Bc7 Nh1 Bd6 Kg1 g2 Kf2 g1N Kg2 Nh3 Re2 Ka8 Ra4 Na2 Rb4 Ka7 Rb8 Qh4 Re8 Qd8 Qbe6 Kb8 Qeb3+ Rb5 Nh5 Bg3 Nf4 Bh2 Qfe6 Rab6 Qd2 Bd5 Bh7 g6 Bg8 Be4 h7 Rg5 Qdd3 Re5 Qa4 Ra6 Qf5 Nbc3 Qac2 Nb1 Qcb3+
3n1rrR/RrB1p2N/2QnNQ2/K7/bQB2n1k/1b1P2p1/2p1B1Pn/5qb1 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 b4 axb4 h4 fxe4 h5 Qd6 h6 Qxh6 Na3 Qh4 Nb1 Qh2 a4 Kf7 f4 Kf6 d3 h5 Kd2 b5 a5 c5 d6 g5 f5 g4 a6 Kg5 a7 e3+ Kc2 c4 f6 c3 Kb3 h4 f7 c2 d7 g3 d8Q h3 Bd2 Nh6 Qb6 Rg8 Qc5+ Nf5 Ra2 Kh4 Qc3 e2 Qc5 e1N Ra4 Bd7 Qc8 Nd6 Ra5 Nc6 Ra1 Nf3 Bh6 Bg7 f8Q Bd4 Nc3 Nd8 Nge2 Qg1 Ra5 h2 Nd5 Bc6 Ka2 b3+ Ka3 b2 Kb4 b1B Qe1 Ba2 Nef4 Bb3 Be2 Qf1 Nf6 Bg1 Nh7 Bd7 Ra3 Be8 Ka5 b4 Qff5 Bea4 Ne6 Bb5 Qb7 B3c4 Neg5 b3 Qe5 b2 Bf8 b1R Bh6 Nf5 Nf8 Kh5 Qc6 Ne6 Qf6 Rb4 Qec3 Bb3 Q3c5 Re8 Kb6 Nd8 Ra6 Kg4 Ka5 B5a4 Q5d6 Rb7 Qb4+ Bd4 Nfe6 Ref8 Nh7 Kh5 Bf4 Kg4 Bc7 Nd6 Rg1 h1N Nhg5 Nf2 Rh1 Nh3 Rh2 Ng1 Rh8 Nh3 Nh7 Nf4 a8B Rb8 Qe8 Bg1 Bd5 Rb7 Qc6 Kh5 Ra7 Kg4 Qa1 Kh4 Bc4 Nh2 Qf6+
7b/N1qP1p1r/n4B1r/2p4Q/2KQN2P/1nnBQ1rp/b1N5/RR2b1rk b - - 0 1 illegal: No proof kernel
1rBQ1nKn/1p1b2Q1/pRQR1B2/r2NNN2/b1P1P3/6p1/1n1r2q1/b3n2k b - - 0 1 illegal: No proof kernel
1r1Q1NKR/P1nr3n/b2r4/1r1RPp1B/2q3kb/1N5p/n3bBp1/Q1Q3R1 b - - 0 1 illegal: No proof kernel
8/1BQ2q2/1R2bb2/1N3R1P/1nNqQr2/1rpBp1Kn/nNPnB1pn/2k5 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f6 e5 Kf7 d6 Ke6 Bd2 Kd5 Bf4+ Kc5 dxe7 Kb6 e6 Kc6 Be5 fxe5 e8Q Kc5 h4 b5 f4 g5 Kf2 d5 a4 g3+ Kg2 e4 a5 d4 h5 d3 a6 Kd4 e7 Ke3 a7 c5 f5 b3 f6 d2 f7 g4 Qc1 b2 Qc6 c4 e8B b4 Ra4 b3 Ra5 Be6 Rf5 Qd5 Nh3 Bg7 f8N Nf6 Nd7 Na6 Nf4 Rf8 Qd1 Nb4 Bf7 Rab8 Nc3 b1N a8B b2 Nce2 Nc3 Nb6 b1N Rh2 Nca2 Bg6 c3 Qe1 d1Q Qc4 Nd2 Kg1 g2 Nd3 Qb7 Bh7 Qf7 Rh4 Bh8 Kh2 g1N Qc7 g3+ Kg2 Ng4 Bb7 Nh3 Nb2 Nh2 Rg4 Bf6 Rg7 Ra8 Rg6 Ra3 Rh6 Rb3 Rg6 Rg8 Rh6 Rg4 Bg6 Rf4 Bh7 Ng1 Nd4+ Ne2 Kh3 g2 Qh4 Ng1+ Kg3 Nh3 Nb5 Nb1 Bd3 Kd2 N6c4+ Kc1 Be2 e3 Qg4 Qd4 Qf3 Nd2 Qe4 Bg7 Rhf6 Bd5 Re6 Bf6 Rb6 Be6 Rc5 Qd3 Qf3 Qd4 Bhd3 Qe8 Rf5 Qf7 Qe4
Bn5K/4Q3/nN2Q1bN/Qr4nP/1R1rnp2/3B1Pnk/pb1p1qN1/q2R4 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 Bd2 e3 Bg2 exd2+ Kf1 c6 Bh3 cxd5 Kg2 d4 Kg3 Ba6 Bf1 Bc8 Kg2 Rh5 Na3 Rh6 Nb1 Rh8 Kg3 Ke7 Kf4 Ke6 c4 d5 h4 a5 e4 f5 b4 d3 h5 g3 c5 d4 e5 a4 c6 g2 c7 a3 b6 a2 b5 Qf6 b7 Na6 b8Q Ba3 b6 Ne7 b7 Bb2 Rh2 Rd8 Nc3 Nc6 Nf3 g1N Qe1 d1N Nh4 d2 Ne2 d3 Qa7 Nc3 b8N d1Q Ng2 d2 Nd7 Ncb8 Ng3 Nf3 Nb6 Ng5 Bd3 Nce4 Rh4 Rd4 Rg4 Bd7 c8B g6 Bb7 Be8 Qe3 Qe2 Re1 Qd1 Bc6 Qa1 Rd1 Bf7 Qc7 Ra7 Ba8 Rb7 Nd7 Rb5 Qa5 Nh7 Nb6 g5+ Kf3 Be8 Rh4 g4+ Kf4 Bg6 f3 Nhg5 Qe2 Qg7 Qe1 Qa7 Qe3 Kf7 e6+ Kg7 e7 Kh6 Nd5 Qb6 Ke5 Qc5 e8Q f4 Rhh1 Qa7 Qe7 Qb6 Rb1 Qa7 Rhd1 Qc5 Nf1 g3 Nh2 Qa7 Rbc1 Qc5 Rc4 Qb6 Rb4 Qa7 Nh4 g2 Qe1 g1N Ng2 Ne2 Qe6 Nh3 Ng4+ Kg5 Nh6 N2g3 Ne3 Nac5 Nb6 Kh4 Qe7+ Nhg5 Ng2+ Kh3 Qe3 Nc3 Kf6 Nca6 Kg7 Nce4 Kh8 Qc7 Bc2 Qc3 Qe2 Qe3 Bd3 Qf2 Qe3 Nf6 Q3e5 Nfe4 Q5e6+
3R1rr1/4r2Q/1n3b1R/Kp1r4/1P3nPp/1R1QNpr1/BB1qq2N/b3N2k b - - 0 1 legal: proof: f4 c5 h4 g5 a4 gxh4 d4 cxd4 f5 b6 a5 Bb7 a6 e6 axb7 exf5 Ra4 f4 Ra5 Qe7 Ra1 Qd8 Kd2 Ke7 c4 Kd6 e4 Ke5 b4 f5 g4 d5 c5 a5 c6 h5 c7 a4 c8R h3 Qe2 h2 Nh3 h4 Kd3 f3 Nf4 f2 Nh3 b5 Bd2 f4 Bc1 f3 Ba3 Bg7 Qc2 Bf6 Rg1 h1R Qb3 Ne7 Bb2 a3 Nf4 a2 Ng2 Nd7 Nd2 Rg8 Ne1 Kf4 e5 Nb6 b8Q Rh3 Qa7 Ng6 e6 Rg3 e7 Qd7 Rc6 Raf8 Rb1 a1B e8N Qd6 Be2 f1R Ng7 Rf2 Bd1 Re2 Nf5 Re7 Nf1 Qd7 N5e3 Qd8 Kd2 d3 Nh2 d4 Qba3 Qd5 Bb3 Qd6 Ba2 Qe6 Kc1 d2+ Kc2 d1R Qd3 Qe4 Rg2 Qe6 Rd2 Qc4+ Qc3 Qe2 Kb3 d3 Qc2 Re4 Qh7 Re7 Re6 Rg2 Qc3 Kg3 Qd4 Kf2 Kc3 Kg1 Rd6 Nf4 Rc6 Bg5 Rh6 Kh1 Qd5 Rg1 Kd4 Bf6+ Kc5 Rg3 Qc4 Rc1 Rd1 d2 Kc6 Rc3 Kc5 Ra3 Qcd3 Raa7 Kc6 Rad7 Kc5 Rd5+ Kc6 Re4 Kb7 Re7+ Ka6 Kg1 Ka5 Kh1 Rdc1 d1Q Rc8 Qdd2 Rd8 Qf1 Ba3 Qfg2 Rb3 Qge2 Bb2
5n2/QN3BK1/1NbbrpnQ/2p1B1Pp/2kNR3/Rq6/R1n2P1q/4rn1n b - - 0 1 legal: proof: d4 b5 c4 e5 h4 exd4 a4 g5 axb5 gxh4 Rh3 d5 Rh1 dxc4 Kd2 Ke7 e4 Ke6 b4 a5 g4 h5 b6 c5 e5 Kd5 b7 d3 Ke3 a4 Kf4 d2 e6 a3 Kf5 a2 b5 h3 g5 c3 b6 c2 Nf3 h2 Bb2 c1N Na3 Nd7 b8R Ne2 e7 Rh6 e8N Bd6 b7 Re6 Be5 Qc7 Nd4 Nf8 Nc4 Bd7 Qb3 d1Q Qb6 Ra3 Ra8 Bc6 b8Q Re3 Ra3 Qb3 Q8a7 Qb8 Rg1 h1N Rg4 Qc7 Re4 Neg3+ Kf4 Qb8 Bh3 Nf1 Kf5 Re1 Bg2 Be7 Ned6 Qc7 Nb7 Bd6 Nb2 Qb8 Na4 Kc4 Bf3 Nf6 Bg4 Nd5 Bf3 Nf4 Qba6+ Kb4 Nb6 N4g6 Be2 Kc3 Bc4 Qc7 Rb1 a1N Rb2 Nc2 Rba2 Re7 Kf6 Re6+ Kg7 Qb8 Qa8 f6 Q6a7 Re7+ Bf7 Qc7 Qd8 Re6 Na8 Kc4 Qdb8 Nd7 Qh8 Ndf8 Qh6 Qg3 Rd3 Qb6 Rf3 Qh2 Rfa3 Qb3 Nb6+
b2Q1RnN/1k1KQ2r/4Bp1P/n4qR1/Bb1prB2/Q2pn3/PN4n1/5nq1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 b5 Kf3 d5 c4 Kd7 Kg4 g5 Kf5 g4 h4 f3 e4 f2 h6 g3 h7 d3 c5 b3 e5 Kc6+ e6 b2 h5 f6 Qb3 g2 Ne2 g1N Na3 b1N Nc4 Nf3 Nb2 Nbd2 Qa3 Kb7 Nf4 Nc4 Ng6 Qd7 Bf4 Nc6 h6 Qg7 Rc1 N6a5 Rh5 Ne1 Rg5 Ng2 Be2 f1N Bd1 d4 Ba4 b4 Rb1 b3 c6+ Ka6 c7 Bb7 c8B Bb4 e7 Nce3+ Ke6 Ka7 Bcd7 Re8 Bc8 Ba8 Kd7 Qf8 Rc1 Qf7 Rc6 Qd5+ Rd6 Qf5+ Re6 Rf8 e8Q Rf7+ Qe7 Rf8 Ba6 Re8 B6b5 Kb7 Bc4 Qe5 Ra6 Qe4 Be6 Qf5 Nc4 b2 Rd6 b1Q Nb2 Qd1 Rc6 Rb8 Rc8 Qc1 Rf8 Re8 Bh2 Qe1 Be5 Qef2 Bf4 Qg1 Qd8 Qe5 Beb3 Re6 Rf7 Ne7 Rf8 Rg8 h8Q Qf5 Qh7 Rg7 Nh8 Re4+ Be6 Rf7 Qg8 Rh7 Qf7 Ng8 Qfe7
3r2qR/2K1n1bk/2pp4/n4b2/P2rRp1N/1nP1BNB1/n1QQq3/1B4Nn b - - 0 1 illegal: No possible last move
3N1K1R/1k3P1Q/5b1p/1pQ4B/qN1p4/Pb4bn/br1r1R2/bnQ1q1BR b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 d5 f4 Kd7 g4 Kc6 c4 e5 g6 b5 f5 e3+ Kd3 e4+ Ke2 d3+ Ke1 h6 f6 e2 Kf2 e1B+ Ke3 b3 Kd4 b2 Ke5 d2 g7 e3 g5 e2 c5 Be6 f7 Bh4 g6 e1B Nf3 Na6 Na3 b1B Nc2 Qe7 Ng5 Nb4 Be2 Kb7 Bh5 Nf6 g8R Ne4 g7 Nf2 a3 Na2 Nb4 Rc8 Rh2 Nh3 Rf2 Nc3 Qc2 d1Q Be3 Rc6 Qc1 Ba2 Bd4 Qe8 Kf6 Qa4 Kg6 Bd6 Rf8 Bd2 g8Q Nb1 Kg7 Bdg3 Qh7 Bc3 Rg8 Qe7 Ra8 Rd8 Rc8 Bf5 Ne6 Bc2 Ra8 Rd7 Rh8 Bf6+ Kg8 Bcb3 Nd8+ Kc7 Be3 Re6 Bd4 Re2 c6 Rb2 Bc5 Kc8 c7 Qe1 Kf8 Rd6 Rf4 Bce5 Bg1 Bd4 Rf2 Bc3 Ne6 Kb7 c8Q+ Ka7 Rf5+ Qf2 Ng5 Nd2 Qe1 Rc2 Qc5+ Kb7 Bh2 Qg1 Rb1 Ba1 Ne6 Rb2 Rf2 Rd7 Rd1 Nb1 Qd2 Qf1 Qdc1 Qe2 Rh1 Qe1 Bg1 d4 Q5c4 Re7 Qc5 Rc7 Qd6 Rcc2 Qc5 Rd2 Nd8+
nKn1q3/1Q1P4/1n1pNRB1/1b6/n2PR3/1N2N1rq/1BpQpkn1/1r1Q1b2 b - - 0 1 illegal: No extended proof kernel
1BR1K3/qNp1p1R1/Rr1B3r/2P1r3/NQP1nrk1/3p4/Q2b4/qr1n2Bb b - - 0 1 illegal: No proof kernel
2q3rb/pbb3pq/2P5/BQb1Qn2/R1K1pn2/3N1bk1/RrP2NQ1/2R4B b - - 0 1 illegal: Other
2Q3QK/Bb2rN1N/4R1rn/q1bR2N1/P2p4/p7/b1pbBPBq/nnk5 b - - 0 1 illegal: No proof kernel
3b4/n1k1BNRR/2R4r/q2PQ2n/2pP1Nbn/p5pB/rq1N2n1/2Q3Kb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 hxg4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 h4 a5 d4 f5 b4 c5 e4 g5 e5 g3+ Kg2 c4 b5 g4 e6+ Kc7 e7 a3 e8Q a2 h5 a4 h6 Nc6 h7 Na7 Qf3 Be7 Qc3 Nf6 Be2 f3+ Kf1 g2+ Kf2 f4 Qb3 Nh5 Nh3 g1N Ba3 g3+ Kf1 f2 Bg4 Bd7 Qc3 Nf3 Nd2 Nh4 Qc1 Bg5 Rb1 a1Q Be7 Qb2 Ra1 Bc8 Ra3 Bf6 Re3 Bf5 Re6 Be4 Rh2 Bh1 Rd6 Bg5 Qf7 Bf6 Qe6 Bg5 Qe5 Bf6 Ke2 f1N Bd7 Ne3 b6+ Kb8 b7 f3+ Ke1 Kc7 b8R Neg2+ Kf1 f2 Rb3 Bg5 Rf3 Bf6 Bc8 Bg5 Rf7 Bf6 Nf4 Bg5 Rg7 Bf6 Ke2 f1B+ Kd1 Bd3 Bh3 Bf5 Ke2 Bg4+ Kf1 a3 Qe6 Rb8 Kg1 Rb6 Qe2 Rf8 h8N Bg5 Nfg6 Rf2 Nf7 Ra6 Nf4 Qa8 Rd8 Rh6 Rd6 Bf6 Qe5 Bg5 Bf8 Bd8 Be7 Qc6 Qb1 Qcb6 Qc1 Qa5 Rg8 Qbb5 Nb1 Rf6 Qf1 Ng7 Qc1 Ra2 Nd2 Qb7 Re8 Qb2 Rg8 Ne3 Bf1 Nhf5 Rhh8 Nh4 Rh7 Nh5 Rgg7 Rh6 Bh3 Neg2 Rc6+
1r5b/N1rRQ3/q5R1/1bnpqQN1/2n2N1P/B1pkPR1r/1n3pBn/7K b - - 0 1 illegal: No possible last move
2bn2nQ/2q1R1qr/rB3Q1N/1kp1N2B/2PpPR2/2b2K2/3p4/qBqQ2b1 b - - 0 1 illegal: No possible last move, all moves rejected
4nR1Q/qrBNb1NK/2R5/p3qnb1/qQP1b2p/5P1Q/p1R3B1/rq4k1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Ke2 Kf7 Kf3 Kf6 Kf4 h5 g4 d5 b4 e5+ Kf3 d3 c4 h3 b5 d4 Ke4 h4 f3 a3 b6 h2 b7 d2 Ra2 Kg5 f6 d3 f7 Qf6 Qa4 Nc6 b8R Nce7 Ne2 Rh7 Qb5 Bf5+ Ke3 d1Q Rg1 h1Q Qb4 d2 Bg2 e4 Nd4 Qa4 Rc2 d1Q Nc3 Qe5 Nd5 Nf6 Nb6 Ne8 Nd7 a6 Bb2 Qa1 Re1 Bh6 f8Q Qf1 Ree2 Qfb1 Qh8 Rg7 Rc8 Bg6 Rc6 Nf5+ Kf2 Kf4 g5 Bh7 g6 Bg5 Bc3 Re7 g7 Bg6 Re1 e3+ Ke2 Kg3 Kd3 Kh2 g8Q e2 Ne6 Rh7 Ng7 Ra7 Rg1 e1B Qe6 Bed2 Bd4 Be7 Bb6 Bdg5 Bc7 Rb7 Re1 Rh6 Re4 Kg1 Rg4 Bh7 Rf4 Rg6 Bh1 a5 Bg2 Qc5 Ke4 a2 Qd2 Qa7 Qb4 Ne3 Qh3 Nf5 Nc5 Rd6 Nd7 Rd4+ Ke5 Rd1+ Ke6 Qe5+ Kf7 Ng3 Rff6 Be4 Kg8 Nf5 Rf7 Qbb3 Rff6 Ra1 Rf8 Qb1 Kh7
BN1r2Q1/3R1BB1/3b3b/pkP4K/R1pPbpQ1/3rn3/q2q1N2/nnbR4 b - - 0 1 illegal: No proof kernel
3qNnrQ/1rn4R/1rRb2Bp/1q4pK/4bp2/Q1r1N1Bk/1n1P3P/Q5R1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g3 b5 axb5 fxg3 Ra4 dxc4 Ra6 Qg5 Ra1 Qd8 b4 Ke7 e4 Ke6 Ke2 f5 Kf3 a5 e5 c5 b6 g5 b5 c3 b7 a4 b6 a3 Bh3 a2 Qa4 c2 Qd4 c4 Qc5 c3 Qa3 h6 Bb2 c1N Ne2 c2 Nbc3 g2 Nd1 g1R Ng3 Na6 b8R Bd6 b7 Ne7 Ne3 Ra7 Nh5 Ng6 Nf6 Nc7 Ne8 Nd3 Rc1 a1Q Bg2 Re1 Rg1 Rg8 Ra8 Bd7 b8Q Rb7 Ra7 Qb1 Qa8 Nf8 Bd4 f4 Kg4 Bb5 Kh5 Bc6 Be4 Qb5 Bg6 Nb2 Qa1 Rb6 Rb7 Be4 Q8a3 Nd5 Rh7 Nc7 Nc4 Re2 Bf2 Re3 Bh4 Rb3 Bg3 Rb7 Ne3 Rb6 Rcd1 c1R Rde1 Rcc6 Rc1 Rb7 Rc5 Rcb6 Rc6 Rc3 Ng2 Kd5 e6 Kd4 e7 Kd3 Ng7 Ke2 e8Q Kf3 Ne3 Qd7 Qea8 Qd8 Ng4 Rh8 Ne8 Rg8 Re1 Kg2 Ne3+ Kh3 Rg1 Qd7 Qd8 Qc8 Qf6 Qd8 Qh8
1nrR1qq1/2nbbr2/5NPk/5Q2/3pQP1B/RK3p1B/1p3bR1/2NQqb2 b - - 0 1 illegal: No proof kernel
1rkr1n2/1qb1K2R/1RQ2NP1/q1p2P2/p5b1/Nr2p3/Q2B1RB1/nq1Qq3 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 e5 f4 h5 b4 a5 d4 c5 g4 a4 g5 c3 g6 c2 b6 h3 b5 h4 b7 h2 d5 h3 d6 Na6 b8R Nf6 b6 Nb4 b7 Nh7 Bg2 Qa5 Bd2 c1Q Na3 Qb1 Nf3 Nc2+ Ke2 e3 Kd3 e4+ Kc4 e2 Kd5 e1R Ng5 e3 Ra2 Na1 Ne4 Bg7 Rc2 Be5 Nf6+ Kd8 d7 Nf8 Rb2 Bc7 Qb3 Rc1 Qa2 Rc3 Rb6 Rb3 Kc6 Ke7 d8Q+ Ke6 Rf1 h1Q Rf2 h2 Qd3 Qhe1 Qf1 Qec1 Qd1 Ke7 Kd5 Bg4 f5 h1Q Rd8 Qcb2 b8Q Qe1 Qb7 Rb8 Qc6 Rg8 Rd6 Rh8 Re6+ Kd8 Re7 Kc8 Rd7 Qbc3 Rh7 Qcb4 Ra6 Qb7 Rb6 Nd7 Ke6 Rd8 Kf7 Nf8 Ke7
r1b1q3/2k1rQrq/2n1nP1B/1KPpNrp1/N5B1/b1R2p2/2b5/1Q1QN1R1 b - - 0 1 illegal: No proof kernel
nRKB2rb/1nnN1B2/n1Q2P1P/1R2r3/3q2Qp/1k1p4/b1N2p1N/1r1R1q2 b - - 0 1 illegal: No proof kernel
1q1R1Q1Q/B7/q2P2n1/k1Np1B1K/b6p/nr3prR/r2Q1b1P/n1N2Nr1 b - - 0 1 legal: proof: d4 b5 c4 g5 a4 d5 axb5 e6 f4 dxc4 d5 gxf4 d6 Na6 Qd4 Nb8 Qd5 exd5 Kf2 Kd7 Kf3 c5 Kg4 a5 e4 h5+ Kf3 f5 b4 a4 g4 a3 b6 Kc6 g5 Kb5 e5 h4 e6 a2 e7 Bd7 e8N Ne7 b7 Bh6 g6 Na6 g7 Rg8 Bd2 Qb8 Bh3 c3 Ne2 c4 Nf6 c2 Rc1 c3 Ne4 Ng6 Nc5 Nc7 Be3 Bg5 Rg1 c1R Nd2 c2 Rg3 Rb1 Nc1 Rb3 Nf1 Raa3 Rb1 a1N Bg4 Ra2 Rh3 Kb6 b5 Ka5 b6 Nb5 Rb2 Na3 Rb1 Rh8 g8Q Ba4 Qf8 Rg8 Qh6 Bf6 Rb2 Bd4 Qh8 Qa7 b8Q Rg7 Qbe8 Qb8 b7 Rg8 Qf8 Rg7 Ke2 f3+ Kf2 f4 Bf5 Rd3 Rb6 Rb3 Rc6 Rg8 Rc8 Rg7 Rd8 Rg8 Kg1 f2+ Kg2 Rg7 Kf3 Rg8 Kg4 f3 Ne2 c1R Kh5 Re1 Nc1 Rg7 Ng3 f1Q Qh6 Qa6 Nf1 Rg8 Bg1 Bf2 Qh8 Qba8 b8Q Rd1 Qb7 Qb8 Qc8 Ne5 Qe6 Rg3 Qeh6 Ng6 Ne4 Be1 Ba7 Bf2 Nc5 Re1 Nd2 Rh1 Nf1 Rhg1 Qd2+
Qrr2r1r/3qR2n/N1Pn1pR1/kbp2qR1/1n3bp1/PB6/1BB3Q1/2NK4 b - - 0 1 illegal: No proof kernel
1n4k1/BR1N4/QbpN1Kb1/1q1r1bnQ/3PB1P1/qq3pRp/6BR/5r1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 Kf7 g4 a5 e4 h5 b4 c6 d4 c3 e5 a4 b6 c2 b7 a3 b5 a2 b6 h3 Qe2 h4 Nc3 h2 Qb5 h3 Ba3 c1Q Qa6 Nf6 e6+ Kg8 e7 Qb2 e8B Bc5 Ne4 Nh7 Bg6 Qb5 Bg2 Qd5 Rf1 Qdc4 Nd6 a1Q Rd1 Qbb3+ Rd3 Qcb5 Bb4 Qaa3 Ba5 Nd7 b8Q Ra7 b7 Bb6 Qc7 Nb8 Qe7 Be6 Qg5 Bf7 Qh5 Ng5+ Ke2 f3+ Ke3 f2 Kf4 f1B Nf3 Be2 Ne5 Bf3 Bb4 Be4 Rg3 Bc2 Bc5 Be4 Rc1 h1B Nd7 Bb1 Ke5 f4 Bf5 f3 Be4 Bg6 Rc2 Rh7 Re2 Re7+ Kf6 Re5 Bf1 Bd3 Rh2 Rd5 Bg2 Bc4 Bc2 Bcd3 Bb1 Bdf5 Be4 Bc7 Qb6 Ra4 Qa6 Rc4 Bb6 Rc1 Ba7 Rf1 Qa4 Na6 Qc4 Bb6 b8R+ Be8 Rb7 Nb8 Qa4 Beg6 Qa6
1Kn2q2/4Nq2/2p2r1B/N2Qr1qn/R1P2kp1/1p1b4/R1Pnq1RQ/1B3B1b b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 h5 b5 hxg4 b6 Bb4 Na3 Bc3 dxc3 axb6 Nb1 b5 Qd3 b4 Qd6 Ra4 Qd1 Ra8 Kf2 Ke7 h4 Ke6 e4 Ke5 a4 g5 h5 b5 h6 f5 h7 d5 a5 d4 a6 g3+ Kf3 d3 a7 b3 c4 b4 Ba3 d2 Rh4 g2 Rh2 b2 Rh3 Nd7 Rh2 Ndf6 Ne2 g1Q Nc1 Ne7 Rf2 Nh5 Nb3 Qf8 Ra2 Bb7 Rg2 Re8 a8R Nc8 Nc3 b1N Bc1 Qgc5 Nd5 g4+ Ke2 f3+ Kd3 f2 Na5 f4 Ne7 Rg8 h8Q+ Rg7 Ra4 f3 Qh7 Kf4 e5 Qf7 e6 Qg5 Kd4 Rg6 Qh6 Bd5 Kc5 Rf6 Kb5 Be4+ Ka6 Bd3 Kb7 Qf8 Be2 f1Q Kb8 f2 Ra2 Qe1 Bf1 Qe2 Ra6 Rd8 Ra4 Rd5 Ra7 Re5 Ra8 Ng3 Qh2 Qf7 Nec6 Qf8 e7 Qf7 e8B Qf8 Qh6 Nh5 Ne7 Qf7 Bb5 c6 Ra2 Qf8 Ba4 Qf7 Bb3 Qf8 Ra4 Qf7 Ba2 b3 Qh8 Qf8 Qe1 Qf7 Qg8 Qf8 Qd5 Qf7 Ba3 d1B Bc1+ Nd2 Ra6 Qe4 Bb1 Bf3 Qe2 Qf8 Rg1 Bh1 Rg2 Qeg6 Rb6 Qh7 Rbb4 Qhg8 Ra2 Qgf7 Rba4 Be4 Qed3 Bg6 Qh3 Bd3 Be2 f1Q Qh4 Qe1 Bf1 Qd1 Qh2+ Ke3 Qd8 Qf4 Rg1 Qe2 Bb2 Nf3 Rg2 Ke4 Bd4 Nd2 Be3 Qf5 Bh6 Qg5 Qd5+ Ke3 Qh4 Kf4 Qh2+
R2N1bKQ/q1Q1r2n/q1p1R1QB/5r1p/2P1k1n1/3n3P/1bB4p/2B2Nrr b - - 0 1 legal: proof: e4 e5 b4 a5 f3 axb4 Kf2 d5 Nc3 dxe4 Nce2 e3+ Kg3 e4 Nc3 e2 Nb1 e3 Kf4 Bh3 Kg3 Bf5 c3 g5 Qe1 Be4 fxe4 g4 h3 Ra5 Kf4 Ra7 Qg3 Ra8 Qh2 g3 Kf3 gxh2 Kf4 Kd7 Ke5 Kc6 d4 e1Q a4 b5 g4 f5 Ke6 h5 Kf7 f4 a5 e2 e5 Kd5 a6 b3 e6 f3 e7 b2 e8Q b4 a7 b3 g5 f2 g6 c6 g7 Nd7 Qe7 Qc8 Nd2 b1R Ngf3 b2 Ng5 Nc5 Qc7 Nf6 g8Q Nd3 Qg6 Qa6 Ne6 Re8 a8Q Nh7 Nd8 Qd1 Rg1 e1B Rg3 Qa7 Re3 Qda4 Re6 Q4a6 Be2 f1N Bd1 Rg8 Bc2 Ne3 Nf1 Ng4 Bh6 Rc1 Qc8 b1R Qb8 Kc4 d5 Rb5 d6 Kd5 c4+ Kd4 d7 Bc3 Ra5 Bb2 Qbb6+ Rc5 Qb4 Ngf6 Ng3 Q7b6 Qg7 Qab7 Ra8 Rh1 Nf1 Rf5 Qd2 Qc8 Qh8 Rgg1 Qg2 Qca6 Qg6 Qba7 Bc1 Re5 Bh6 Ng4 Kg8 Re7 Nb7 Rf7 d8B Rd7 Bdg5 Re7 Rf6 Ra5 Nd8 Rf5 Bc1 Ke4 Re6+
7K/n3kr1b/QP1N2RR/1nrP2q1/1b3B1p/q2ppR1q/BN1Q1n1n/4N3 b - - 0 1 illegal: No proof kernel
1r1B2K1/r2B2N1/1P1pQbk1/3p1q2/R1N1Pnp1/2QN1n1R/bqR3r1/2rq4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 d5 c6 Qd2 cxd5 Qd4 Bc5 Qd1 Bf8 Kd2 a5 Kd3 f5 Kd4 Kf7 Ke5 g5 e4 g3 b4 f3 c4 f2 h4 f4 b6 f3 b7 a4 c5 g2 b5 a3 c6 a2 c7 Ra6 h5 Ra8 h6 Nf6 h7 Be7 b6 Kg6 Ne2 g1R Na3 Rg2 Ng3 Nh5 Nc4 Ra7 Rh3 Qf8 Nf5 Nf4 Ng7 g4 Qb3 Bd8 Qc3 Qf5+ Kd6 Rg8 h8R Nc6 b8N Ne5 Na6 Bf6 Nc5 Ba6 Nd3 Rb8 c8Q Bb5 Be2 f1R Qc6 f2 Rc8 Re1 Bd1 f1Q Ba4 Nf3 Bb2 Bd4 Ke7+ Bf6+ Kf8 Rc1 Qe6 d6 Kg8 Ba6 Bd7 Qd1 Qa5 Bb5 Bd4 Ba4 Qc3 Bb3 Bf2 Bc2 Bh4 Bb3 Rb1 a1Q Bg5 Qa4 Ra1 Qb5 Ra4 Ba2 Qc2 Qb4 Na5 Qb2 Qd2 Rbb7 Rc2 Rb8+ Ne8 Rab7 Qc3 Rc7 Nc4 Ra7 Qee5 Bh8 Bd8 Bg7 Qe6+ Bf6 Ng7
n2b2Nk/2b4q/1p3rP1/rbPqN3/b1p1p1q1/1Q3RR1/n2Q2KR/1B2B1N1 b - - 0 1 illegal: No proof kernel
3rq1b1/Kb1n3R/1pP2pnR/1b3PQ1/Bq1B4/r2pr1b1/Q1B1R2N/kN6 b - - 0 1 illegal: No possible last move
1q3nbB/QR1nQnqk/pBR2b2/3BN3/1P3pb1/prN1P1r1/R7/3nK3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 g4 f5 b4 Kf7 d4 Kg7 d6 c5 d7 h5 g5 h3 g6 h2 d5 a3 d6 h4 e3 f3 Bd2 f4 Bc3+ Nf6 Qd3 h3 Qe4 f2+ Ke2 Rg8 Qd4 Be7 Bg2 f1B+ Kd1 Bc4 Bd2 a6 Qd3 Nh7 Bc1 Nf8 Nc3 Bf6 Qe2 Kh8 g7+ Kh7 Qf2 Be6 Na4 c4 Kd2 c3+ Ke1 c2 Bb2 c1N Nc3 Qb6 d8Q Nbd7 Qc7 Qb8 Qa7 Nd3+ Kd2 N3e5 Nf3 Nf7 Ra2 Bg4 Rc1 h1N Ne5 h2 Ke1 Be6 Qg1 Nf2 Bd5 h1Q Ba1 Qh5 Qg5 Nd1 Bb2 Qg6 Ba1 Rh8 g8R Qh6 Rg6 Rg8 Bb2 Qg7 Ba1 Nc5 d7 Bg4 d8B Bce6 Bb6 Ncd7 Qb7 Ra7 Qa8 Rc7 Qa7 Rc4 Rcc2 Rd4 Rg2 Rd2 Rg3 Rb2 Rg2 Bd8 Qe7 Rb3 Rgc2 Bef5 Rc6 Be6 Qc5 Bf6 Qe7 Nd6 Rc7 Nf7 Rb7 Qg6 Re2 Bh8 Nb5 Bgf5 Qd8 Nd6 Qe7+ Rg7 Bad4 Bg8 Ng4 Nf7 Rec2 Qh6 Rc6 Rg6 Ne5 Rg3 Ng6 Bg4 Nc3 Qg5 Bg7 Qf6 Ne5 Qg6 Bh6 Bf6 Bg7 Qh6 Bh8 Qg5 Qe6 Qg7 Qe7
5q2/5nR1/p1rB1r1N/5P2/1q1pnbNK/3p3P/bQBBk1qN/2R1nqQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 c4 Kf7 b4 Ke6 f4 Kf5 Kf2 e5 Kg3 d5 c5 g5 c6 e3 h3 Ke4 c7 e2 b6 e1Q+ Kh2 a6 b7 g3+ Kg2 g4 b5 d3 f5 d4 b6 Bd6 Ba3 Ke3 Nc3 e4 Be2 Rh6 Rb1 Be6 c8N Nf6 Rc1 Nc6 b8B Qf8 b7 Bf4 Bad6 Nd8 Ne7 Nf7 Nf3 Ba2 Nh2 Qd2 Bbc7 Rc8 Ba5 Rc6 b8Q Qb2 Rf1 Qb4 Rg1 Rg6 Ng8 Rh6 Kf1 g2+ Ke1 Rg6 Nh6 g3 Bg4 Qc4 Qb2 Qb4 Rf1 g1Q Be2 Qh1 Rg1 Qg2 Bh5 Qd2+ Kf1 Qe1+ Kg2 Qd2+ Be2 Qc2 Qf1 Kd2 Nd1 e3 Bh5 e2 Ne3 Ne4 Neg4 Rf6 Kf3 g2 Qf2 Nc3 Qf1 e1N+ Kf2 Be3+ Kg3 Bf4+ Kh4 Ne4 Qf3 Nfg5 Qg3 Ke2 Bf7 Qcd2 Bb3 Nf7 Bc2 Qd1 Rf1 g1Q Rf3 Qe3 Qg1 Qf2+ Rg3 Qg2 Ne5 Kd2 Rg7 Qdf3 Neg4 Ke2 Bb6 Qff1 Ba5 Qb3 Bc3 Qb4 Bd2
2qk1rnb/1R3QBQ/p3b2R/4P1K1/p1B2Nn1/2PpbqN1/b1q4R/3rB3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 exf4 a4 bxa4 Nc3 c5 Nb1 cxd4 Kf2 d5 Kf3 g5 h4 f5 e4 d3 b4 d4 h6 a6 h5 d2 c3 Be6 h7 Qc8 b5 Kd8 b6 Nd7 b7 Bg7 b8Q Ndf6 h6 Ng4 Qdb3 d1Q+ Ne2 Qc2 e5 Ra7 Nd2 Rd7 Qa7 Bf6 Kg2 f3+ Kg3 f2 Rb1 f4+ Kh3 f3 Nf4 Bg7 Bc4 f1B+ Kg3 f2 Rh2 Be2 Ne4 f1Q Bd2 Qh1 Kh3 Qf3+ Ng3 Rd6 Be1 Bf6 Bd5 Bc4 Qf7 Bg7 Qbb7 Ba2 Rb5 d3 Qa7 Rb6 Bc4 Rb8 Rb7 Bf6 Re7 Rb1 Rb7 Rd1 Rf2 Ne7 Rh2 Rf8 h8B Ng8 h7 Rd2 Bg7 Rd1 Bh6 Bh8 Bg7 Ne3+ Qf5 g4+ Kh4 Rc1 Nf1 g3 Qf7 g2 Kg5 g1B Ng3 Ng4 Qd4+ Qd5 Ng2 Be3+ Nf4 Rd1 Qe4 Qdc6 Bh6 Bg7 h8R Qd5 Rh7 Bh8 Bg7 Qdc6 R7h6 Qd5 Qef5 Qf3 Qh7
BN6/n2r2RP/3qrNP1/5r2/1qqbp3/1B2prpR/n2N1QQB/kb1K4 b - - 0 1 illegal: No proof kernel
1r1n2q1/KR1Bb2p/R5NQ/1b2R2Q/n1qP1pr1/2B1P1bb/5p2/1QkNq3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 d4 Kd6 g4 Kd5 b4 Ke4 b6 f5 b5 a5 b7 c5 b6 f3 g5 c3 g6 c2 g7 a4 Rh3 a3 Rh2 c4 Bb2 c1B Bg2 a2 Qd2 h3 Qc3 Bf4 e3 Na6 b8R Nc5 b7 Na4 Bf1 Ne7 g8Q Nc6 Ne2 Be7 Qg4 Qg8 Qh5 Nd8 Qa3 c3 Qd6 Kd3 Qdh6 c2 Nbc3 Kd2 Nd1 c1Q Bc3+ Kc2 Bg2 Bc7 Nf4 Ra5 Rh1 h2 Ng6 Bg3+ Kf1 f4 Bh3 f2 Ke2 Rg5 Bd7 Rg4 Kf3 Bg5 Ke4 Be7 Rg1 h1B+ Rg2 Qg7 Kd5 Re8 Kc4 Qg8+ Kb5 Rf8 Rh2 Bc6+ Ka6 Bb5+ Ka7 Re8 Qd5 Rf8 Rh5 Re8 Re5 Rf8 Rb1 a1Q Ra8 Qa2 b8Q Qc4 Qb6 Qd2 Rb3 Kc1 Qdh1 Qe1 Q1h5 Bb7 Rb4 Bg2 Qb7 Bh3 Qe4 Bc6 Rb7 Re8 Rc8 Bb5 Rc6 Nf7 Ra6 Rb8 Qef5 Nd8 Qb1+
b3nqR1/1r3B1p/2P1b2r/NP2R3/1q1qnQ2/Bp4b1/k4b1p/RN1Q1KB1 b - - 0 1 illegal: No possible last move
B2Q2N1/3r1bP1/r2pPb2/n3B2k/bBn4R/1R2Q2K/p1r1p3/b1Qq1Nq1 b - - 0 1 illegal: No proof kernel
3Q1n1b/kr1b2p1/qp5P/P2R2K1/nb1Rr3/QB5N/1B1NbBRp/4nq2 b - - 0 1 illegal: Other
2qBnQr1/2N1RP1k/pn1p2bQ/Q2P4/1bN1rRp1/2q2n2/KR6/n1qB4 b - - 0 1 legal: proof: e4 b5 b4 h5 a4 f5 g3 fxe4 g4 hxg4 axb5 c5 Bh3 cxb4 Bg2 Nf6 Bf1 Ng8 f4 Kf7 c4 Kg6 d4 e5 Kd2 g3 Kc2 a6 Kb2 d6 h4 b3 b6 e3 f5+ Kh7 c5 g5 d5 e4 h5 g4 c6 e2 h6 e1N c7 e3 f6 e2 b7 g2 f7 Qg5 Nc3 Nf3 Ra4 e1Q Be2 Be7 Qd2 Nd7 b8R Ngf6 Nb5 Ne8 Bd1 Nb6 Rf4 Bd8 Qa5 Bf5 c8Q Qg8 Nc7 Bg6 Qf5 Qc3+ Ka3 b2+ Ka2 b1N Qg5 Nbd2 Bb2 Qb4 Bf6 Nb3 Rh2 Qc3 Rb7 Na1 Ra7 Ne1 Nf3 g1Q Ne5 Nf3 Rb2 Qge3 Be7 Qec1 Nc4 Qf8 Rb7 Rg8 Bf6 Qe7 Ra7 Qe6 Be7 Qc8 Bf6 Be7 Rb7 Bf8 Bd8 Bg7 Ra7 Bd4 Rb7 Bc5 Ra7 Kh8 h7 Bb4 Rb7 Kg7 h8Q+ Kf8 Qhh4 Kg7 Qe1 Kh7 Qee7 Ra7 Qf8 Ra8 Nb5 Ra7 Re7 Rd7 Re1 Re7 Nc7 Re4 Re3 Rd4 Re7 Re4 Qgh6#
b2nNQk1/b3Rp2/p3NQ2/R1rPQ3/1P1K1B1n/1bB5/2Bpb3/q1r1nq2 b - - 0 1 illegal: No proof kernel
1Qk2N2/1n2RpP1/2b1nP2/3p1Q1b/2r2bRN/1q2r1p1/1b2B1nB/QK1N1q2 b - - 0 1 illegal: No proof kernel
N7/2n2pP1/Q1pN1r1B/K1nq1BR1/5n1r/Pk1pb2Q/2r2R1n/1q1Q1b1B b - - 0 1 illegal: No proof kernel
k4bBK/1r1Qp2B/3NP1bP/r2pR3/1N4q1/1Np2qR1/1n1bBn2/1q1Q3b b - - 0 1 illegal: No proof kernel
2NKQ3/n2Np3/PQ1PkNqB/q1p2p1B/r2bb1R1/2R4r/2n1b1q1/4b2R b - - 0 1 illegal: No proof kernel
1R4KR/3p1Q2/2qn1QnR/8/2BBrn2/qN1pNpbr/2PPn3/3bqB1k b - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 e3 e5 Qg4 b5 axb5 exf4 Qg7 Qa5 Qf6 Qd8 Qd4 cxd4 Ke2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 b4 f5 g4 a5 b6 h3 b5 a4 b7 d3 b6 f3 g5 a3 g6 f2 g7 f4 Ne2 Kf3 e4 a2 e5 h2 e6 Qe7 Ng3 Qa3 e7 Nf6+ Kh6 Ne4 e8B Ra4 Nc3 Nc6 b8R Ne7 b7 Nd6 Nge2 Ng6 Ng3 Re4 Rg1 h1N Bh3 f1N Ra8 Nf2 b8Q Bb7 Nge2 Ng3 Bf1 Nh3 Rb1 a1Q Bb2 Bd5 Nc1 Ne2 Bf7 Be6 Ra6 Bg4 Nd5 Be7 g8Q Bh4 Kg7 h5 Qb5 Bg3 Qa4 h4 Rh1 Kf2 Rh2+ Kg1 Ne3 Bf3 Be5 Q1c3 Rab6 Qc6 Bc4 Bh5 Nb3 Bg4 Rf2 Kh1 Bd4 Qc1 Rb5 Neg1 Rf5 Bh2 Rf8 Bd1 Na5 f3 Qh7 Ne2 Ba7 Nhf4 Rbb8 h3 Qa1 Qa3 Qg8 Rh4 Qf6 Rh6 Bd4 Kg1 Qgf7 Rh8 Nb3 Bg3 Bg2 h2 Rg8 Rh6 Rh8 h1Q Kg8 Rh4 Rf1+ Kh2 Rf2 Qe1 Bf1+ Kh1 Rg2 Bh2 Rg4 Rh3 Rgh4 Bg3 R4h6
qnBk2q1/q1Np2b1/1RN3R1/QK3b1N/1P4pP/5prr/qr3B1Q/5Rn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 Kd3 g5 Kc4 a5 e4 d3 b4 d2 h3 f3 e5 a4 e6 g3 e7 g2 b6 f2 b7 f4 Ne2 g1Q Ng3 a3 Nc3 g4 Qe2 d1Q Nd5 f3 Kb5 a2 c4 Nh6 c5 Nf7 c6 Qc2 c7 Bg7 Nh5 Ng5 Be3 Qb2 Rc1 a1Q Rc6 Ra2 Rb6 Qbb1 Qd2 Rb2 Bd3 f1R Qh2 Rc1 Bf2 Qa8 Rg6 Qba1 Be2 Qg2 Rf1 Q1a7 Bc4 Ne4 Be2 Ng3 Bd3 Ne2 Be4 Na6 b8R Ng1 Rbb6 Bb7 c8Q Nb8 Qc2 Ra1 Qa4 Qc8 Qa5 Raa2 Ndf4 Rh7 Bd3 Be4 Ne2 Bf5 Nd4 Ra1 Be4 Rd1 Bb7 Qc4+ Ka4 Qg8 Bc8 Rdd2 Nc6 Rdc2 Bh4 Qe2 Bg3 Qea6 Bh4 Rg2 Be1 Qac4 Bf2 Qa2+ Kb5 Rg3 Rd1 Kf7 e8N Rh6 Nc7 Kf8 Nd4 Ke7 Rf1 Kd8 Rg5 Re6 Rg6 Ree2 h4 Rh3 Bg3 Rg2 Bf2 Rgg3 Nc6+
3Bb1qb/3p1r2/nRP1Q1PQ/q6B/3k2K1/3NQ1pR/N3pr2/bq2n1bR b - - 0 1 illegal: No proof kernel
b5kq/2rpn2p/1Pp3B1/K2nrr1b/P3r2B/1N1Nq1QR/R3Q2b/3Q2B1 b - - 0 1 illegal: No proof kernel
K5nn/3pp1r1/Q1R2B1P/7R/B1q1Pb1n/3Q1rq1/Q1pNb3/1n1NkbR1 b - - 0 1 illegal: No proof kernel
N6Q/K1pN4/1Rrn4/1b1Nn2B/1q1kpB2/1bQrpP1P/2Bb2b1/2qR1n2 b - - 0 1 illegal: No possible last move, all moves rejected
1B4Q1/N1pR1K1b/n1NQ1Q2/n1q2q1n/NbP1kq2/r5B1/1pp3RP/5q1r b - - 0 1 legal: proof: g4 d5 e4 h5 b4 hxg4 b5 f5 exf5 d4 b6 d3 c3 axb6 Bg2 b5 Bd5 b4 Bb3 Qd6 Bc2 dxc2 Qe2 Qd3 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 d4 g3 a4 g2 a5 b3 a6 b4 c4 b2 a7 b3 d5 Na6 d6 Qd7 Ne2 g1Q Nd4 Rh3 Nc3 b1N Ndb5 b2 Na4 Ra3 Be3 Qf1 Rg1 Nd2 Rg2 g5+ Kg4 Ke5 Kh5 g4 Kg6 e6 f4+ Ke4 f6 g3 f5 e5 f7 Qf4 f6 Nb3 Bd4 Qe6 d7 Na5 d8N Bb4 f8B Qef5+ Kf7 Bd7 Bd6 Be8+ Kg7 Bg6 f7 Nf6 f8Q Bh7 Nc6 Rd8 Kf7 Nh5+ Ke7 Ra8 Qf6 Rf8 a8Q Rg8 Rf2 g2 Ba7 g1Q Rg2 Qc5 Kf7 Rg5 Qg8 Rg4 Rd2 Rg1 Bb8 Rh1 Rb1 Ke3 Rg2 e4 Qd4+ Kf3 Re1 e3 Nba7 e2 Rd1 e1Q Be5 Qf1 Qd6 Ke4 Rd3 Q4c1 Bg3 Q1e3 Qdd8 Qef4 Rd7 Bd2 Qdf8 Bb4 Qd6
1QQRq3/1Pnnn1K1/N1r1N3/pBN5/2kr1R2/P2pb2p/bB2R3/3n2bq b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 b5 d3 bxc4 Be3 cxd3 Bh6 Nc6 Bc1 Nb8 Kd2 Kf7 Ke3 c5 Kf4 a5 Kg5 d5 g4 h5 b4 e5+ f6 Ke6 Kg6 e4 f4 c4 b5 d2 f5+ Ke5 b6 Kd4 b7 e3 a3 e2 f7 e1B f6 h3 g5 c3 Bb2 h2 Bb5 h4 Qc1 d1N Ba4 h3 Nd2 Qe8 Ra2 Ra6 Ne4 Kc4 Ne2 d4 Rf1 h1Q Nc5 c2 Rf4 Bf2 Nc3 Rh4 N3e4 Rc6 Na6 Be6 Nec5 Bh6 Kh7 Bg1 f8R Ne7 g6 Bd5 f7 Nd7 g7 Rg4 g8Q Rh4 Rf3 Bhe3+ Kg7 d3 Rf2 Rd4 Rf4 Nc3 Qh8 Nb5 Rg8 Nc7 f8N Bg2 Nfe6 Bd5 Qd2 c1N Qh2 Ne2 Qg3 Qh5 Rd8 Nc3 Qg4 Qe8 Qf5 Nd1 Qe5 Na8 Qb8 Nc7 Qf8 Ng6 Qc8 Nb5 Qd6 Ne7 Qdb8 Nc7 Bc1 Kc3 Re2 Ba2 Bb2+ Kc4 Bb5+
Bn3k2/rpb3b1/3Q1BBP/N1n3n1/qNK1pp2/1Q3P1n/rR4R1/rq2N3 b - - 0 1 legal: proof: e4 h5 g4 d5 Ba6 d4 Bd3 Be6 Bf1 Bd5 exd5 Qd7 Qf3 Qc8 Qd1 Qd8 b4 hxg4 b5 c5 b6 c4 d3 cxd3 Bb2 axb6 Ba3 b5 Bc1 b4 Kd2 e5 c4 g5 h4 f5 a4 f4 a5 g3 c5 g2 h5 g4 h6 g3 a6 b3 c6 b2 a7 Nf6 c7 Bg7 c8Q Kf8 d6 Qe8 d7 Nh7 d8N Qa4 Nf3 g1B Ra2 g2 Qc7 Ng5 Na3 b1Q Nc4 e4 Qb3 Rg8 Ne1 Rh8 f3 Rg8 Kd1 d2 Rb2 Be3 Ke2 d1N Na5 Nf2 Rh2 Nd3 Ndc6 Nc5 Nb4 g1N+ Kd1 d3 Rhg2 d2 Bb5 Bed4 Be8 Bde5 Bg6 N1h3 Ke2 d1R Bd2 Qaa1 Bc3 Qa4 Bd4 Bd6 Bf6 Rc1 Qd7 Bc7 Kd2 Rd1+ Kc3 Rh8 Rbe2 Rd2 Qdd5 Ra2 Kc4 Ra1 Nd3 Qd7 Nac6 Nba6 Qd4 Kg8 Bh7+ Kf7 Ne1 Rhc8 Nb8 Kf8 Bg6 Rd8 Qe5 Qa4 Nc6 Rd2 Na5 Rda2 Rb2 Rd8 Qbc3 Rd6 a8B Nb8 Qe6 Ra6 Qb3 Ra7 Qd6+
1BRNrqqn/1p1R4/2N1QkPP/1B3pb1/R1r4B/1n2Qp2/K3bb2/b1r5 b - - 0 1 illegal: No proof kernel
BBb1R2r/1p1RnQ2/rpN3n1/pkq4P/1bQ3b1/1Qr5/P2rNN1K/3q4 b - - 0 1 illegal: No proof kernel
N4rBR/kpRqp3/P1Q2N1n/2n1Q3/p2P3Q/b3Bqn1/n1r3bK/q3N3 b - - 0 1 illegal: No proof kernel
2BRB2r/P2qR3/b1nr3N/2N3p1/n1p1nB1q/k2Q3Q/2NpqP2/bKn5 b - - 0 1 illegal: No possible last move
r3nQkn/PR1pbr2/1NR1q2n/4q2R/K3pB1b/2Q1N2n/2BpP3/2Nr4 b - - 0 1 illegal: No possible last move, all moves rejected
K1n3rq/p2QPkB1/1p2p3/n1N4R/2B1nNq1/2bRQb1b/4P1r1/2R1N2b b - - 0 1 illegal: No proof kernel
qQ2qk2/p1Np4/KNbQ3n/n1P1rq2/2R2r2/B1pr3P/3q1bR1/BBQ5 b - - 0 1 illegal: No proof kernel
7R/pb1pQP2/q2P1n1k/7N/bN2rr1B/q1q2qR1/1p1nBQ1K/1nRN4 b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 c5 h5 cxb4 h6 gxh6 Na3 h5 Nb1 h4 a3 b5 Bd3 b3 Qe2 b4 Kd1 b2 Ke1 b3 Qd1 Bg7 Bb5 Bc3 Bf1 Bb4 axb4 Ba6 Qe2 Bb7 Qd1 Bc8 f4 Kf7 Kf2 Kg6 c4 h5 d4 e5 g4 e3+ Kg2 h3+ Kh2 e2 f5+ Kh7 g5 e1Q c5 h4 b5 e4 b6 e3 f6 e2 c6 Bb7 c7 Qe7 c8Q Qa3 d5 Nc6 f7 Nf6 d6 Nd4 Qc5 Qea5 Qe1 Rae8 Nc3 b1N Nd1 b2 g6+ Kg7 Qc2 Re4 Bg5 Qa6 Qf2 e1Q Qce2 Bc6 b7 Qec3 b8N Ba4 Nc6 Nb3 Nb4 N3d2 Qee1 Rhe8 Ne2 Rf4 Ng3 Re5 Be2 Ree4 Kg1 h2+ Kg2 Kh8 g7+ Kh7 Nh5 Kg6 Rg1 h1B+ Kh2 h3 Bh4+ Kh6 g8R Bf3 Kg3 h2 Rh8+ Nh7 Kh3 Bh1+ Rg3 Bf3 Rg4 h1Q+ Kg3 Qf1 Kh2 Bh1 Rg3 Bg2 Qb6 Qff3 Qd8 Bh1 Qe7 Bg2 Rc8 Nf6 Qf2 Bh3 Rb8 Be6 Rd8 Bd5 Rh8+ Nh7 Rg2 Bb7 Rf8 Nf6 Rd8 Qcc6 Rg4 Nc3 Rc1 Ncb1 Rg3 Qcc3 Rh8+
1Q1RBr2/2RRb3/b1pP3r/3p2Bb/4kb1K/q1n1PbN1/Q2pB2N/1n2b3 b - - 0 1 illegal: No possible last move, all moves rejected
5Q2/2n1nBp1/1kb3RQ/1RpP1P2/3R1K2/Bpn1nnr1/1Nn4b/1qB2Nr1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 c5 h4 Kc7 f4 e5 d4 b5 a4 b3 d6+ Kb6 f5 b2 h5 b4 h6 g3 h7 b3 d7 g2 Qh5 Bd6 Qh6 Ne7 Ne2 g1N Nd2 b1N Ba3 Nc3 Rd1 Nf3 Ng3 Bb7 Bc4 Bc6 Bf7 Na6 Ngf1 Nc7 Rg1 Re8 h8Q Ra7 Kf2 e3+ Kg3 e2 Qf8 e1N d5 e4+ Kg4 Qa8 d8B e3 Rg3 e2 a5+ Kb7 a6+ Kb6 Rg1 Bh2 Rg2 Nc2 Nc4+ Kb5 Rd3 e1N Nb2 Kb6 Rg1 Ng2 Rd4 Nfh4 Kg5 Nge3 Rg3 Nf3+ Kf4 Nc8 Bf6 Re5 Bg5 Ne7 Qf6 Qe8 Qh6 Ra8 a7 Re6 Bg8 Qh5 Bf7 Rg6 Qd8 Qh3 Qf8 Re8 a8R Qg2 Nd2 Qh1 Ra5 Qb1 Nf1 Bg1 Rg2 Ra8 Bh4 Rg3 Bg5 Bh2 Re2 Nc4 Re6 N4e3 Rg6 Rd8 Rd1 Nc4 Rd6 Rh3+ Kg4 Rd7 Rd4 Rd8 Rf6 Rd6 Bc1 Re6 Nd2 Re1 Rg6 Rg3+ Kf4 Reg1 Nf1 N4e3 Rb5+
n4B1n/pR2Q1p1/r1rk4/1B1n2bQ/2RpK1nN/q3PP1N/1Q4B1/3bn1n1 b - - 0 1 illegal: No possible last move, all moves rejected
1B3nq1/2b2rRR/3k1p1r/1P3P1N/K1brNn1p/4Qp1b/4Bb1r/R3QN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e6 Qd2 e5 Qf4 exf4 Kd1 Ke7 e4 a5 b4 d5 c4 h5 Kc2 a4 g4 h3 g5 h2 e5 a3 Kb3 a2 e6 h4 b6 d3 b7 d2 b5 d1R g6 d4 g7 d3 c5 f6 c6 d2 c7 Kd6 e7 Be6+ Bc4 Nd7 b8Q Rh6 e8Q Ne7 g8R Nd5 Ne2 Ra7 Re1 h1R Ng3 Rh2 Be2 f3 Rg7 Nf4+ Kb4 Bc4 Nh5 Be7 Rh7 Nf8 Rg1 Qc8 Ba3 Bd8 Rgg7 Qe6 Qa8 Qg8 Qe3 Rb7 Qa5 Ra7 Nc3 Rb7 Nd5 Ra7 Rb1 a1B Rc1 Bd4 Ka4+ Bc5 Ra1 Rb7 Bc1 Ba7 Qe4 Bf2 c8N+ Kc5 Ne3 Rf7 Nf1 Bc7 Qe3+ Kd5 Nb6+ Kd6 Bb2 Rb1 Nd7 d1B+ Ka3 Bc2 Nc5 Rd1 Qe1 Rd4 Bc3 B2d3 Ka4 N8g6 Ba5 Nf8 Bb6 Rh1 Ba7 Rh2 Bd1 Be2 Bb8 Bed3 Nd2 Bf1 Be2 Bg2 Nf1 Bh3 Ne4+
1QN2b1b/n2rn2B/1r2Pk2/2Q3Rq/pbb2K1B/2p1r1QB/P4prR/7N b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 Kf2 Ke7 d4 f5 h4 g5 e4 b5 d5 a5 c6 g3+ Kf3 b4 d6+ Kf6 d7 g4+ Kg2 b3 h5 c3 h6 b2 c7 a4 h7 Qe8 d8Q+ Ne7 Q1d7 Rg8 Bd3 f3+ Kf1 f2 Ke2 f1R Ke3 g2 Qd6+ Be6 c8B g3 Rh2 Re1+ Kf4 Qh5 Nd2 b1R Qa5 Re3 Nh3 g1B Nc4 g2 Qac5 Nbc6 Nf2 Ra7 Nb6 Rd7 Nh1 Na7 h8Q+ Rg7 Qb8 Bc4 Qg8 Bf2 Bd2 g1B Be1 Rg2 Qg3 Rb4 Bb7 Rb1 Nc8 Rb6 Bb1 Re2 Bd5 Bd4 Be6 Re3 Bd3 Bf2 Rb1 Bg1 Rb5 Bf2 Bf1 Bg1 Bg8 Bf2 Bh7 Bg1 Qd5 Bc5 Ra5 Bb4 Qc5 Rf2+ Qf3 Kg7 e5 Red3 Bh3 Rg2 e6 Bd4 Qcc6 Re3 Bh4 Bf6 Rd5 Bd4 Qc5 Bf6 Bg8 Kg6 Re5 Bh8 Bh7+ Kg7 Bg3 Kf6 Qg4 Ree2 Kf3 f4 Rg5 Re5 Bh4 Re1 Qe3 Ree2 Ke4 f3 Qgg3 f2 Kf4 Re1 Qd4+ Re5 Qd5 Re3 Qc5
2RKB3/1qnNRbnP/3Qr1p1/3krpP1/2r5/1N1nB2p/1r1nN2Q/b2R4 b - - 0 1 illegal: No proof kernel
2RbQ3/1r3Qp1/b2BK2k/q1rB1r1b/3pQ2R/1N4BP/rpn2Pb1/4N1n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 e5 Ke4 d5+ Kd3 b5 c4 e4+ Ke2 d3+ Ke3 d4+ Kf4 e3 Ke5 g3 a4 e2 f6 Kg6 h3 e1R+ Be3 d2 a5 g2 c5 b3 c6 b4 c7 b2 a6 b3 a7 Na6 f7 Rh5+ Ke4 Nh6 Bc4 Rc5 Ra5 Nb4 Rh2 Nc2 Qf3 d1B Rh1 Nf5 Nd2 b1B Bd5 b2 Ke5 Ng3 Nb3 Ba6 c8Q Ne2 Bf4 Be7 Bg3 Kh6 f8B Bh4 Rb5 Qa5 Qe8 Bd8 Qff7 Ba2 Nf3 Ng1+ Kf5 Re7 Ne1 Rb7 Bfd6 Bh5 Ke6 Bb1 Bc4 Rf5 Bd5 Rc8 a8Q Rc5 Rb6 Ba2 Na1 B2c4 Nb3 Bf1 Rb5 Nf3 Rb6 g1R Rc6 Bg2 Rc8 Rf1 Rg1 Bb6 Nd3 Ra1 Re1 Bc7 Re4 Bd8 Ne1 Ng1 Rh4 Ra2 Bc4 Rb4 Qe4 Rb7 Bd5
1bB1rq2/2br1PBp/3nn1r1/2p4p/b1r3RP/BQ3N1K/1bN2k2/1R3R1Q b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 e4 dxc4 Ke2 fxe4 Ke1 g6 Qh5 gxh5 b4 Kd7 g4 Ke6 d4 Kd5 f4 e5 Kf2 c5 Kg3 a5 h4 c3 f5 a4 g5 a3 g6 c2 b6 e3 f6 Ke4 b7 e2 f7 e1R d5 a2 b5 Bd7 d6 Na6 b8R Rd1 b6 Ba4 g7 Nc7 b7 Ra6 d7 Bd6 Nh3 Nh6 g8Q Qf8 d8B Ne6 Ba5 Bc7 Ng1 Nf5+ Kh3 Nd6 Ba3 Ke3 Nf3 c1R Bc3 e4 Bg7 Kf2 Rg1 e3 Rg4 Rc4 Bd3 e2 Bf5 Qe7 Qe8 e1B Qc6 Re8 Qe4 Qf8 Qd5 Nd8 Bc8 Bd2 Qc6 Bf4 Qd5 Rdc1 Qd1 Ne6 Qh1 Re1 Ra8 Bh2 b8Q Rd1 Qb3 Rd3 Rb8 Rd1 Nbd2 Rc6 Rc1 a1B Nf1 Bb2 Ne3 Nf5 Qc3 Rd7 Re4 Bb6 Ne1 Ba1 Bh6 Nd8 Bg7 Rg6 Nf3 Ne6 Nc2 Ba7 Rb5 Bab8 Rg4 Bhc7 Rbb1 Bb2 Qb3 Nd6 Rf1+
b5BK/bB1nP3/1R3p1b/nnRqbN2/Qp6/R4N2/1PQpnk1Q/2r3r1 b - - 0 1 illegal: No proof kernel
R1b4b/n1np1P2/kb4n1/B2r1B1Q/1Q2p1RN/1p2P1Q1/b4qB1/2KN1n1r b - - 0 1 legal: proof: g4 a5 d4 g5 h4 c5 b3 cxd4 b4 axb4 hxg5 f5 Rh4 fxg4 Rh2 Nf6 Rh1 Ng8 Kd2 h5 f4 b5 c4 e5 a4 d3 a5 e4 a6 b3 a7 b2 c5 g3 c6 b4 c7 b3 f5 h4 g6 g2 g7 h3 f6 h2 Ra6 Ne7 g8B Nbc6 Bc4 Ng6 Ra3 Bg7 Nf3 g1B Bh3 Bb6 Rf1 h1N e3 Ng3 Nc3 b1B Bg2 Ba2 Rg1 Rh1 Nh4 Bh8 Qh5 Nf1+ Kd1 d2 f7+ Ke7 Be6 Kd6 Bf5 Kc5 Ra6 Rb8 a8Q Qf6 Qb7 Na7 Ba3+ Kc4 Bb4 Ra8 Ba5 Rb8 Na4 Kb5 Nb2 Ra8 Bf3 Rb8 Rg4 Ra8 Bg2 Rb8 Ke2 d1N Ke1 Nc3 Nd1 Nd5 Ke2 Ng3+ Kd2 Nf1+ Kc1 Ra8 Be6 Qf2 Bf5 Nc6 Ra7 Rb8 Ra8 Na7 Qc6+ Ka6 Qa4 Bbd4 Qb4 Rb5 Qd2 Bb6 Qb4 Bb7 c8Q Nc7 Qb8 Rd5 Qg8 Bc8 Qg7 Bc5 Qe5 Bb6 Qg3
1r1kNrB1/1rp1Q2N/1bb1Qq2/2B1N1nR/b6b/p6p/1P3P1Q/Kn4Rr b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 h5 Kd2 a5 Kc3 e5 g4 h3 b6 h4 b7 h2 d5 a4 d6 e3 g5 e2 g6 e1B+ Bd2 h3 g7 a3 Qc2 e4 Qd3 e3 Kc2 e2 Qe4+ Be7 Qe5 c3 Bg5 Nh6 g8N Nc6 b8Q Ra7 Nd2 Nf7 Kb1 Na5 Qb3 Bd7 Qbe6 Nb3 Be3 Rb7 Ndf3 Ng5 Bc5 c2+ Ka2 Ba4 Rc1 Nd2 Ka1 Nb1 d7+ Kf8 Bg2 Ba5 Nf6 e1R Ne8 Bb6 Q5d6 Re4 Ne5 Rb4 Ngf3 Rf4 Rhe1 h1B Rg1 Rf7 Rcd1 c1R Rd4 Rd1 Rh4 Rf5 Rh5 Rg8 Ne1 Rf6 Bf1 Bhc6 Bc4 Rh8 N1f3 Rf1 Rg2 Rh1 Rg1 Rg8 Ng4 Rf7 Qh2 Rf4 Ba2 Rb4 Ngf6 Rb3 Qe1 Kf7 Qe4 Rf8 Nh7 Bf6 Qg4 Qe7 d8Q Qd6 Qb8 Ke7 Ne5 Rb5 Qa7 Kd8 Bg8 Be7 Qa6 Qf6 Qe6 Ra5 Qf1 Ra8 Qe1 Rab8 Ng4 Bd6 Q1e4 Bg3 Ne5 Bh4 Q4g4 Nf3 Qg7 Ng5 Qge7+
4Q1n1/K1Q3pq/1P1Bq1P1/1p4q1/N2RBpQ1/3n4/1nN1rR1n/2rkbRn1 b - - 0 1 illegal: No proof kernel
B3n2R/p2q1p2/K2PnPN1/6pq/2Nb1B1r/RN4rr/Q1R1k3/1nnn2Q1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bc1 h5 e4 hxg4 Be3 d5 Ra2 d3 Ra1 d4 Bf4 Bb7 Bc1 Bd5 exd5 Qc7 Ra2 Qc8 Ra1 Qd8 Kd2 Kd7 f4 Kd6 h4 Kc5 c4 e5 d6 g5 h5 g3 f5 g2 h6 a3 h7 a2 b3 e4 Be2 Qd7 Rh4 Nf6 Bf3 Na6 Na3 Ne8 Ne2 Bg7 Qg1 Nac7 Rh5 Be5 f6 Ne6 Rh6 Kb4 c5 Rb8 c6 e3+ Ke1 Kc5 c7 Rb4 Nc4 d2+ Kd1 Ra4 Kc2 d1N Kd3 Nc3 Ba8 Nb1 c8R+ Kb5 b4 Ra3+ Ke4 d3 Kd5 d2 Rc6 d1N Nd4+ Ka4 b5 Kb4 b6 Kc3 b7 Kd3 b8Q e2 Nb3 e1Q Be3 Bd4 Bf4 Ke2 Qb7 Qf2 Qa6 Qh4 Qa5 Qh5 Qa4 Rg8 h8N Rg7 Ng6 Rh7 Nca5 Rh8 Kc4 Rh7 Kb5 Rh8 Nc5 Rh3 Nc4 Rh4 Ka6 Rh3 Qh1 g1R Nb3 Rgg3 Qg1 Na3 Rc1 a1N Rc3 Nb1 Rc5 Nc2 Qa5 Ne1 Qa3 Nd3 Qa2+ N1b2 Ra5 Nc1 Ra3 Rh7 Bd2 Nd1 Rc2 Rg7 Rh8 Rh7 Nc5 Qf3 Nb3 R7h4 Nge5 Qg4 Ng6 Qh5 Bf4+
3RQ2q/rrp2N2/qQP2bKN/4B3/1R2rq2/1Q1ppP2/B3b1N1/1r2rnk1 b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 d4 gxh4 Qg4 e5 Qf3 e3 Qg4 e4 Qe2 Nc6 Qd1 Ne5 dxe5 Qe7 Qd3 Qg5 Qd1 Qd8 Ke2 Ke7 g4 Ke6 a4 h5 c4 b5 f3 d5 c5 b3 g5 Kf5 a5 Kf4 a6 Kg3 a7 b4 c6 h3 e6 b2 e7 d4 e8N b3 g6 h4 g7 h2 Qd2 h3 Ra3 Qh4 Qc3 Be7 Qc5 Qf4 Nf6 Rh4 Ra4 Nh6 g8Q+ Ng4 Nc3 b1R Ncd5 b2 Qb6 Ba6+ Rc4 Bd8 Bd2 Be7 Bc3 Bb5 Qgb8 Bd8 Ng8 Bf6 Nh6 Ba6 Qb3 Bb5 Qd1 Ba6 Qb6 Bb5 Ke1 e2 Rb4 Ne3 Kd2 Kf2 Qb3 e1R Bc4 Nf1+ Kc2 e3 Kd3 Re8 a8Q Re4 Qe8 Ra1 Ne7 b1R Neg8 Ra7 Ne2 Rb7 Rg1 h1Q Nf7 h2 Ngh6 Qg2 Ba1 h1Q Bc3 Qgh3 Rg8 Qc8 Bb2 Ra7 Rh8 Qa6 Ba1 Qg4 Nf4 Kg1 Ng2 Qf4 Nf5 Rh5 Qc8 Rb7 Qc2 Re6 Qd7 Qhh4 Rd8 Qa8 Qe8 Rg5 Qd1 Qh8 N5h6 Ba6 Qc2 Rb5 Ba2 Ra5+ Qc4 Qa7 Kc2 Ree5 Qb3 Be2 Bb2 d3+ Kc3 Qg3 Kd4 Ra4 Ba1 Re4+ Kd5 Qa8 Be5 Qf4 Ke6 Ra3 Ng5 Qa5 Kf7 Qb5 Kg6 Raa7 Ngf7 Qa4 Rb5 Qa6 Rb4
1k3bNb/1Qp2B1R/npPb4/2n1bPN1/pB2Qq2/7K/1q1Qr3/n4RNb b - - 0 1 illegal: No possible last move
r6n/1bNq1n1n/3NNn2/QPpR1pQ1/2P2n2/p1RRkq2/1BB5/b1K4b b - - 0 1 illegal: No possible last move, all moves rejected
rQnRnk2/1Pr5/NR4qQ/p3nNq1/P2n4/2Br3p/Rn1pB2K/3b1Q2 b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 Bh3 b5 Bf1 bxc4 h4 g5 Qa4 Be7 Qb3 fxg4 Qc2 g3 Qd3 g4 Qd1 Bg5 hxg5 Bb7 Qc2 Ba6 Qd1 Bc8 e4 c5 a4 a5 b4 d5 f4 h5 e5 h4 b5 d3 g6 d2+ Ke2 c3 f5 h3 e6 g2 Kf2 c4 Kg3 d4 e7 c2 g7 d3 b6 c3 b7 Nf6 Be2 Nc6 Bf3 Na7 Qf1 d1N Nd2 Nb2 Ne2 g1Q+ Kf4 g3 Nb3 d2 Ned4 g2 Kg3 Be6 Ra3 Nc8 Nc5 Bb3 g8R+ Kf7 Ra2 Ne8 f6 Rh5 Qc4+ Rd5 Qf1 Rd6 Nf5 Rd3 Na6 Qgb6 Rh2 g1N Rf2 Ne2+ Kh2 Nd4 Be2 Qd5 Rfg2 Qdc5 R2g6 Qbc6 Ng3 Qg5 Rh8 Qe4 Rgh6 Qeg6 Nf5 Nc4 Bb2 c1R Rg8 c2 Bc3 Ne5 Rgh8 Ra1 Rg8 c1N Rgh8 Bd1 Rf8+ Ke6 f7 Rb1 Rfh8 Rb4 f8Q Rc4 Qg7 Rc5 Rg8 Rc7 Qh8 Kf7 Qh7+ Qg7 Qh8 Qh7 Rb6 Qhg6 Qh6 Re3 Rc6 Ncd3 Re6 Nb2 Rb6 Rd3 Rh8 Ned6 e8Q+ Kf6 Qc6 Kf7 Rd8 Ne8 Qd6 Qh4 Qhf4 Qhg5 Qc6 Kf8 Qd6+ Re7 Qb8 Rg7 Qh4 Rc7 Qh6+
RQr5/1Bp2k1p/1Qqr3r/3N1N1P/1qp1rr1B/P1n1b3/R1b5/R2B2bK b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 g4 f5 Ba3 Nc6 Bc1 Nd4 Nh3 exf4 Ng1 f3 Na3 f4 Nb1 Nf5 gxf5 Bd6 Bg2 Bc5 Bf1 Bf8 Kf2 g5 d4 b5 e4 b3 h4 b2 h5 b4 f6 g4 e5 b3 a3 g3+ Ke1 g2 Kf2 Qd5 e6 Bh6 e7 Ra6 Be2 Kf7 Nc3 b1Q Rh2 b2 Qb3 Rd6 Bd1 Bf5 Nge2 Qc6 Kg1 Bc2 d5 Bg5 Qb6 Bh6 Rh4 f2+ Kh2 g1B+ Kh1 f1R Ng3 f3 Nf5 f2 Rh2 Re1 Bg5 f1R Bh4 Re4 e8B+ Kf8 f7 Ne7 Bd7 Bhe3 Bc8 Rff4 Bb7 Rh6 d6 Nd5 d7 Rd6 Na2 Nc3 Nb4 Rg8 Nd5 Rgg6 Bf3 Rh6 Bg4 Qe1 Bd1 b1R Rd2 Rb5 Re2 Ra5 Rf2 Ra8 d8Q+ Qe8 Qb8 Qd2 Q8a7 Rc8 Qb8 Qc6 Rh2 Qe1 Rg2 Bb1 Rga2 Bc2 Nd4 Kg7 f8R Qd2 Rg8+ Kf7 Nf5 Qe1 Bg4 Qb1 Bd1 Qb4 Qa8 Rce8 Qc8 R8e5 Rd8 Re8 Qa8 Rf8 Qaa7 Rh8 Ra8 Rc8 Qb8
4k2B/4rBb1/1q2Rn2/N1QNQQbR/1n1p4/1Kb2q1p/pPBP1n2/1b3b2 b - - 0 1 illegal: No proof kernel forced: bxDB
3rB2r/2p3NR/n1BBnPQ1/1QPR3N/2k1p1rr/p1r1Qq2/2b5/4Kn1q b - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 f5 Ke2 b5 Ke1 bxa4 h4 g5 Bd3 Bh6 Bc4 fxg4 Be2 g3 Ba6 g4 Bf1 Bg5 hxg5 Ba6 Bg2 Bb7 Bf1 Bc8 c4 Kd7 d4 Ke6 b4 a5 f4 h5 c5 Kd5 b5 e5 f5 h4 g6 e3 f6 e2 g7 g2 b6 g3 b7 h3 Na3 h2 Qc2 Ne7 Bg5 Na6 b8Q Bf5 Rd1 Ng6 Rb1 Nf4 g8B+ Ne6 Nc4 a3 Rb4 a2 Nh3 g1N Qb5 g2 Bf7 a4 Bf4 a3 Be8 a1R+ Qb1 Qc8 Nd6 Bc2 Nf5 Qb7 Ng7 Rd8 Qc1 Ra2 Qe3 e4 Bd6 Nf3+ Kf2 Nd2 Ke1 g1R Rb1 Rh5 Rd1 Rh4 Qed3 Qb6 Qa5 Rb2 Bg3 Ra8 Kf2 e1R Qdc3 Rh8 Bfb5 Bb3 Qf3 Ba2 Bbc6+ Kc4 d5 Rb4 d6 Rb3 Nf4 Bb1 Qg2 Rbe3 d7 Bc2 d8Q Qb3 Qd7 Rd8 Qb5+ Kc3 Qd5 Rd3 Qf3 Ree3 Qg4 Nf1 Qdg5 R3d5 Qh6 Rh5 Qgg6 Rf3+ Ke1 Rg2 Bf2 Rg4 Rd5 Rd3 Bg3 Rh3 Rg1 Rh5 Rg2 h1Q Rd2 Rh3 Rh5 Rf3 Rdd5 Rhh4 Qhg5 Rd3 Rh7 Rf3 Nfh5 Rd3 Qa5+ Kc4 Bd6 Rdh3 Qgd2 Qg3+ Qf2 Qgg2 Qf4 Rc3 Qe3 Qf3 Qb5#
5R2/prP2r1k/2pR3b/KbqB2nQ/2PRbp2/5q1N/N2Q1q1B/1B1q1q2 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 d4 bxa4 d5 g5 d6 gxh4 Rh3 c6 Rh2 Na6 Rh1 Nc7 dxc7 Bd6 Nh3 Bc5 Ng1 Bf8 Kd2 f5 Kc3 Kf7 b4 Kg6 g4 d5 e4 h5 e5 d4+ Kc4 a3 e6 h3 b5 h4 e7 a2 Kb4 d3 c4 d2 b6 h2 g5 f3 b7 h3 b8R f2 Qe1 d1Q Qc3 f4 Rb6 Q8d4 Qd2 Rh7 Nc3 Rf7 Ka5 Ba6 e8Q Kh7 Rb8 Nf6 Bd3+ Ne4 Bb1 f1Q Qe5 Bh6 Rf8 Qff3 Qb5 Qff2 g6+ Kg7 Qc5 Rb8 Qh5 Bb5 Ba3 Qde3 Bc5 Ng5 Bb6 Rb7 Bc5 Kf6 g7 Qdf3 g8B Kg7 Bgh7 Qe5 Bhe4 Qed4 Bb6 Qc5 Bd5 Qd1 Bg6 Qdf1 Rd1 a1Q+ Na2 Qb1 Bh7 Qb3 Bb1 Qbf3 Re1 Qd1 Re4 Kh7 Rd4+ Qc2 Nf3 Qe4 Rg1 h1B Rg2 h2 Ng1 Qd1 Nh3 Qd3 Rg1 Be4 Rg3 h1Q Re3 Bf3 Re6 Be4 Rd6 Qhf3 Be6 Qe5 Bd5 Qd3e2 Rd3 Qff1 Bg1 Qef2 Rd4 Qf5 Bh2 Qe5 Be6 Qc5 Bd5
2n1b3/7r/1N2r3/Kn1QQp1q/p1pPrR2/1BN2k1r/1rPR1BR1/qq2B3 b - - 0 1 legal: proof: e4 g5 a4 d5 f4 gxf4 g4 dxe4 h4 b5 g5 Bh6 g6 Bg5 hxg5 bxa4 d4 Kd7 Kd2 Kd6 Kc3 Kd5 Kb4 f5 g7 a5+ Kb5 e5 b4 h5 g6 c5 Ne2 f3 Be3 f2 Nd2 c4 Bh6 e3 Qb1 a3 Qc1 h4 Rb1 a2 Bg5 a1Q Bh3 f1Q Ne4 Nc6 Rh2 Qe8 Bg2 h3 Nd6+ e4 Bh4 Bd7 Nc8 Nge7 g8R Rh7 g7 Qh5 Qe1 Be8 Bf2 Na7+ Kb6 Qg1 b5 Rb8+ Ka6 Rb7 b6 Nb5 Bf3 Rb8 b7 Qf1 Rg2 h2 Rd1 h1R Rd2 Rh3 Rg4 Qh1 Rf4 Qb1 Na7 Nc8 Nc3+ Ke6 Bg2 e2 Bf3 e3 Bc6 Kf6 Bd7 Kg5 Bc6 Nbd6 Ba4 Nb5 Bb3 a4 Ka5 Qa1 Qf1 e1R Qe2 Rg1 Be1 Rg4 Qh2 e2 Bf2 Ncd6 Nc8 e1R Nb6 Re6 Qg3 Qhf1 Qe3 Qfb1 Qe5 Rd8 b8B Nc8 Bd6 Rd7 Bb4 Rb7 Rf3 Re4 Rf4 Ree3 Rf8 Re4 g8Q+ Rg6 Qgd5 Re6 Rf3 Kg4 Rg8+ Bg6 Be3 Rb8 Rf4+ Kg3 Bf2+ Kg2 Rg4+ Kf3 Rg2 Be8 R8g4 Rg7 Be7 Rf7 Beh4 Rh7 Be1 Rbb7 Rf4+ Ke3 Nd7 Nbd6 Ba2 Rb2 Nb6 Nb5 Bhg3 Rh1 Bb3 Rh3 Rh4 Kf3 Bgf2 Rd6 Rhg4 Re6 Rf4+
Nbb2QK1/1nqR2p1/1p2RN1b/2B3br/1Pq3PR/1k3p2/2N1b1Qq/4B1r1 b - - 0 2 legal: proof: f4 e5 d4 exf4 a3 h5 g3 c5 Nh3 cxd4 Ng1 h4 Bg2 h3 a4 hxg2 a5 b6 a6 Nc6 Kf2 Na5 Ke1 Nb7 axb7 Bd6 Ra6 Be7 Ra1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 a5 b8B f5 e4 d6 b4 a4 h4 f3 h5 f4 h6 a3 g4 f2 h7 f1Q+ Qe2 a2 e5 f3 Bd2 d3 Nh3 g1B Be1 d2 Nf2 d1B Ne4 Ne7 Na3 Be3 Nf6 Nc6 Rh6 Be7 c3 Bd2 Nc2 Qc7 Rb1 Qh3 Qg2 Nd8+ Kd4 d5 c4 Ra7 c5 Nb7 c6 Be2 Rd1 Qh2 Rh4 Bh6 Rd3 Rd8 h8R Ra5 Re3 Rd7 Rd8 Rd6 Rd7 a1B+ Bc3 Bb2 Re4 Bbc1 Be1 Bcg5 Re3 Qd8 c7 Ra1 Kc3 d4+ Kb3 d3 Kc4 Rc6+ Kd4 d2 Ke4 Kf7 Kf5 d1Q Re4 Qd3 e6+ Kf8 Kg6 Rc5 Kh7 Bd6 e7+ Kf7 e8N+ Qe7 Qh1 Qc4 Qg2 Be5 Kh8 Ke6 Kg8 Qd6 Nh5 Kd5 Re3 Qd4 Nhf6+ Kc4 Re4 Bg3 Re6 Kb3 Rde7 Bd7 c8Q Qc4 Nc7 Rca5 Qd8 Bc8 Na8 Qdc7 Rd7 Bd6 Qf8 Bdf4 Bf2 Rg1 Be1 Q7c6 Nh5 Bf6 Ng3 Rh5 Bd6 Bf6g5 Bc5 Bb8 Ne4 Qcc7 Nf6
Qr1N4/2KQ4/1P1p4/2bbppb1/n2Rqqk1/B2P4/1NqR3B/1N1Bbbr1 b - - 0 1 illegal: No proof kernel
1B2BRnk/1r1bq3/Kn3p2/n2n4/Q1R3Nq/r1p2Npq/1Q3P1P/BnR5 b - - 0 1 legal: proof: c4 d5 b4 dxc4 d4 h5 g4 hxg4 e3 e6 b5 Bc5 d5 Bd4 b6 axb6 exd4 b5 Bg5 b4 Bh6 Nd7 Bc1 Nb8 Kd2 Kf8 a4 g5 a5 Kg7 d6 b5 a6 c5 a7 e5 d7 b3 Kc3 b2 d5 e4 d6 e3 Ra2 e2 Nd2 e1Q Ra6 b1N+ Kb2 b4 Ngf3 g3 Be2 b3 Nh4 c3+ Ka1 c4 Qc2 g4 Ng6 g2 Nf3 g1Q Nge5 b2+ Ka2 g3 Ng4 Qgf1 Ra4 Rh7 Bf4 Qh4 d8R Qfh3 d7 Kh8 Rf8 f6 d8B Rb7 Bb6 Bf5 Bd4 Nd7 Bb8 Nb6 Bd3 Qe5 Rc1 Bd7 Bg6 Qe7 Qb3 c2 Be8 Kg7 Qb4 Nc3+ Ka3 Ncd5 Bc3 Kh8 Bce5 Qeh7 Qb5 Qe7+ Rb4 Nc8 Ka4 b1N Ka5 Ncb6 Ba1 c3 Re4 Nf4 Rc4 Nfd5 Rh1 c1N Ka6 Nb3 Rc1 Na5 Qb4 Kh7 Qb2 Kh8 Be5 Rc8 a8Q Rc5 Bf4 Rb5 Bb8 Rb3 Qa7 Ra3 Qa8 Rc7 Qc6 Rb7 Qa4
K1QqrR2/1R2r1p1/5p1n/pPQq1R1n/b4Qr1/NrB4B/3rk1PN/3n4 b - - 0 1 illegal: No proof kernel
4rr1r/bkR2rQp/2bq1RBP/2rrn2p/p2B2N1/K2P1r1Q/3N3N/5B2 b - - 0 1 illegal: No proof kernel
1Nr1q3/p4nKp/Bq1B2Q1/1r1Q1rp1/Rn4P1/3NP1nR/b2r3R/4qQk1 b - - 0 1 legal: proof: f4 b5 h4 c5 a4 bxa4 d4 cxd4 f5 g6 h5 Bg7 h6 e6 hxg7 exf5 Ra2 f4 Ra3 Qc7 Ra1 Qd8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 b4 f5+ Kh3 d5 g4 g5 b5 d3 e3 d2 c5 d4 b6 d3 c6 a3 b7 a2 c7 f3 Bb2 f2 Qc1 d1Q Nf3 f4 Na3 d2 Ba6 f1N Ne5 f3 Nd3 f2 Nb5 Kf3 Be5 Qe1 Bd6 Be6 c8Q d1R Q8c5 Qe8 Nc7 Nh6 g8Q Ng3 Qg6 Nc6 b8R f1R Rb2 Nf7 Rbh2 Rd2 Qe5 Nb4 Qd5+ Ne4 Qcc4 Qb1 Qc1 Rb8 Qe1 Rff2 Qf1 Qe1 Na8 Rb5 Nb6 Rg8 Nd7 Rf8 Nb8 Rh8 Rc1 a1Q Rc4 Qa5 Rd4 Qb6 Rc4 Na2 Ra4 Nb4 Qg2+ Ke2 Qg1 Nf6 Kg3 Rg8 Rh3 Rf5+ Kg2 Ne4 R1h2 Nf2 Kg3 Rh8 Qgg2 Rf8 Qgf3+ Kf1 Qf4 Rh8 Kf3 Nh1 Ke4+ Kg1 Qc6 Qed8 Qc5 Ba2 Qd5 Qd7 Qf3 Rc8 Qe2 Rf2 Qf3 Qe8+ Kf5 Rf1 Kf6 Ng3 Kg7 Rff2 Qe2 Rf5 Qf1+
3B1b2/2qk3r/r2NpBq1/3BNp1b/3rRPR1/2QpP2K/1q1b1Q2/nqN5 b - - 0 2 legal: proof: d4 a5 b4 c5 g4 cxd4 a4 b5 Ba3 h5 Bb2 hxg4 Ba3 Nc6 Bc1 Na7 Nd2 axb4 Nb1 b3 Nh3 b4 Ng1 Nb5 axb5 Rh7 Bg2 Rh5 Bf1 Rh8 c4 d5 h4 g5 f4 d3 Kf2 g3+ Kg2 g4 h5 d4 c5 b2 c6 b3 c7 d2 h6 Rh7 b6 Ra6 b7 Nf6 b8Q Nd5 Qb6 Nb4 Nc3 b1Q Bb2 Kd7 Ra4 Nc2 Na2 Na1 Qc1 d1R Nf3 f5 Rc4 e6 Rh4 Bb7 c8N Qc7 Nd6 Be4 Ba3 b2 Qc3 Qc1 Bb4 b1Q Ba5 Qcb2 Nc1 Rd2 Qa7 Bc2 Bb6 Bd1 Rb4 d3 Re4 Rc2 Qh8 Rc5 Qc3 Rc4 Ba5 Rb4 Qf2 Rd4 e3 Be2 Kg1 g2 Kh2 g3+ Kh3 g1B Rg4 g2 Bb6 Bh2 Ba5 g1Q Bg2 Bg3 Bb6 Rg7 h7 Bh4 h8B Rh7 Bf6 Bd1 Ng5 Bf3 Ngf7 Be2 Rg8 Bh5 Bh1 Qg5 Bg2 Qh6 Rg4 Qg6 Bh1 Qc5 Bbd8 Qc7 Re5 Bg3 Bd5 Bh4 Re4 Bg3 Qg1 Be1 Qf2 Bd2 Ne5+
2r1N1q1/B1Qkbq1b/2RNp3/4P1Bn/1pqn2R1/P3Qb2/BKn3p1/R3b3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Bg2 fxg4 Bf1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qb6 Bb2 Qa5 Bc1 Qd8 Kd2 h5 f4 d5 e4 e6 c4 h4 Kc2 h3 e5 g2 g6 h2 a3 b3+ Kb2 d3 g7 d2 c5 g3 c6 d4 f5 d3 c7 b4 f6 Be7 f7+ Kd7 f8B Nf6 g8Q Nc6 Qgg4 Bb7 c8R Nh5 Qde2 d1Q Ra2 d2 Qg7 Nd4 Nh3 g1B Ng5 g2 Ne4 Bf2 Nbc3 Be1 Qe3 Qe2 Rc6 Qc4 Nd6 Rg8 Ne8 d1N+ Kb1 b2 Nb5 Qa8 Ra1 Qb8 Bd3 Ba8 Rf1 h1Q Rf4 Qf1 Rg4 Qf7 Nbd6 Bb7 Bc2 Rh8 Bb3 Qd8 Qd3 Ne3 Ba2 Nec2 Bg5 Rg8 Qe3 Qb8 Ra6 Bf3 Rc6 Qc8 Bb3 Qa8 Ka2 b1B+ Kb2 Bf6 Be7 Rf8 Bd8 Be7 Bb6 Rh8 Ba7 Qc8 Nc7 Qcg8 Nce8 Qh7 Nc7 Rc8 Nce8 Qh8 Ba2 Qhg8 Qc1 Ne3 Qh7 Bd3 Qe4 Nec2 Qee3 Bde4 Qcd2 Bh7 Qdc3 Qa6 Qc5 Qe2 Qb6 Qc4 Qc7+
k2B1n1Q/3p4/4b1pp/K1R1qN2/1QQ1R2P/bP1r3q/1rb3qq/1Br2NN1 b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 g5 axb4 g6 b3 Na3 fxg6 Nb1 g5 Bf4 g4 Bh6 Qf6 Bc1 Qd8 Nc3 b5 Qd3 b2 Nh3 b1B Qd2 b4 Qd1 b3 Ng1 b2 Ne4 Na6 Nd2 Nc5 Nb3 Kf7 Nd2 Nb3 cxb3 Ke8 e4 c5 a4 c4 f4 d3 h3 c3 a5 g6 f5 g3 f6 g2 e5 c2 e6 Ba3 a6 Bb7 e7 Qa5 a7 Bd5 Ra2 Be6 Qf3 Qe5+ Qe2 Rc8 Ra1 Rc3 h4 h6 Rh2 Rh7 Rh3 Rf7 Re3 Qh2 Re4 Qh3 Ngf3 g1Q Ra2 Qgh2 Ng1 Qe5 Bg2 Qhh2 Nf1 Rf8 Bf4 c1R+ Kd2 Bc2 Bg5 b1Q Qg4 Qb2 a8Q+ Qb8 Qa4 Qbe5 Qb4 Rf7 Qe2 Rf8 Bh3 Qg2 Bf5 Qeh2 Ke3 d2+ Kd4 Rd3+ Kc5 d1Q Kb6 Qbe5 Qg4 Qdf3 Qc4 Bb1 Rc2 Qfh3 Rc3 Bc2 Qb4 Kf7 Rc5 Rc8 Ka5 Ke8 Qc4 Rb1 Qf4 Rb2 Qd2 Rc7 Qdb4 Rc3 Qe2 Bd3 Rf4 Bb1 Rb5 R7c4 Rc5 Rf3 Rg4 Rc1 Qec4 Rg3 Bc2 Rd3 Rd4 Kf7 e8N Kf8 f7 Nf6 Be3 Ke7 f8Q+ Kd8 Qh8 Nh7 Ng7+ Nf8 Re4 Qc7+ Kb5 Kc8 Nf5 Kb7 Bg5 Ka8 Bd8 Qce5 Ka5 Rg3 Bd1 Bd3 Bc2 Re3 Bb1 Bc2 Rd4 Rd3 Re4
1Qrk2bQ/np2Np2/2q2RB1/Bpn2R1P/qN1Q3K/4q3/nP1B3b/2n4b b - - 0 1 illegal: No possible last move
1N2r1bR/k3PnB1/1p2qp2/p2rr2Q/Q2q1N1r/4R3/1qBQKPB1/n2n4 b - - 0 1 illegal: No extended proof kernel
Q1qRN3/nQbpkNrP/R3r3/3Bn1p1/2B1KB2/r2PpN2/1n2n3/1q5q b - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 a5 Bg2 axb4 Bf1 h5 c4 hxg4 Ba3 b5 Nc3 b3 Nb1 b4 Bb2 Ba6 Bc1 Bb5 cxb5 Ra6 Nh3 Ra4 Ng1 Ra8 Ke2 g5 Ke3 e5 f4 c5 a4 c4 h4 g3 b6 b2 h5 b3 b7 g2 a5 c3 a6 c2 h6 Ne7 a7 Nec6 f5 Ke7 Nf3 g1N Bc4 Ne2 Nc3 b1Q Ra6 b2 Nb5 Rh7 Nd6 Rg7 Ne8 Qc8 h7 Qa1 Re1 b1Q f6+ Kd8 f7 Ke7 Bb2 c1N Qa4 Nd3 Bc1 Nb2 d3 Kd8 Rd1 Bd6 f8N Ke7 Ne6 Bc7 Qb5 Nf4 Re1 Ne2 Kf2 e3+ Kg2 e4 Nd8 Qa5 Nf7 Ne5 Qa4 Nbc6 b8Q Qd5 Qb7 Ned4 Rf1 e2 Bf4 e1R Kf2 Ne2 Ke3 Qd6 Rf2 Qh6 Qa1 Qh1 Qa2 Rb8 a8B Na7 Rf1 Ng1+ Kd4 Ne2+ Kd5 e3 Ke4 Rc1 Qa5 Rc3 Rc1 Qh6 Qbb6 Ra3 Qd5 Qb7 Bb3 Bd8 Rc8 Qhh1 Bc4 Bc7 Rd8 Qc8 Qb3 Rb5 Bc6 Rc5 Qb8 Rb5 Qa8 Rb6 Bb7 Re6 Qb5 Rh6 Bbd5 Re6 Qbb7
2Q5/2prq1nK/1Nn1bk2/1N2qrB1/1Q6/pqP1PB1R/2prBq2/2nQ2R1 b - - 0 1 illegal: No proof kernel
1B3n2/1NpB3p/1k1R1Q2/1qNb2Rn/q2n1bK1/1QP1P1br/2Q1p1q1/3n2R1 b - - 0 1 legal: proof: e4 d5 Ke2 dxe4 h4 g5 b4 gxh4 b5 e3 Kf3 e2 b6 axb6 Ke4 b5 Ke3 b4 d3 e5 Kd2 e4 Ba3 e1B+ Kc1 Ne7 Kb2 Qd4+ Kb3 Ng8 Bc1 Qd5+ Kb2 Qd8 Nd2 b5 Rb1 e3 Ra1 e2 Nb1 Ra6 Bd2 Re6 Bc1 Re3 fxe3 Ba6 Bd2 Bb7 Bc1 Bc8 a4 Kd7 g4 Kc6 d4 f5 a5 f4 c3 f3 Kc2 b3+ Kd3 b4 Ke4 f2 Kf3 b2 a6 b3 a7 h3 a8R h2 g5 Ne7 d5+ Kb5 g6 Nec6 g7 Bb4 g8Q Qd7 d6 Bc5 R8a5+ Kb6 Nh3 Bb7 Rg1 h1N Nd2 b1Q Bg2 f1N Nf4 b2 Ne6 Bg3 Nd8 Qg6 Ne4 b1Q Qc2 Nf2 Ba3 Qb5 Qgb3 Rg8 Rd1 Qde8 d7 Bcd6 Rd4 Nd1 Nc5 Bdf4 Rd6 Qg5 Bb4 Rg6 Ba3 Rh6 Bb4 Ba8 Ndb7 Rh3 d8Q Nd7 Qf6 Nf8 Bh1 Qd5+ Kg4 Qde4 Nd3 Qa4 Rg5 Qg2 Ndc5 Qe5 Ne6 Qeb5 Bc5+ Ka6 Bb6 Nd4 Ba7+ Nc6 Rd7 Nd4 Bb8 Kb6 Rd8 Qh2 Bc6 Qg2 Nd6 Bb7 Nc5 Ba8 Bd7 Bd5 Bc6 Nd2 Ndb7 Ne4 Qe7 Nd6 Qe5 N6f5 Qf6 Ng7 Rd6 Nh5 Bd7+
r3Q1nb/b6B/1p2Rpqp/2kR1B2/B1b5/N3KQ1b/QP2nP2/nq2q2N b - - 1 2 legal: proof: c4 g5 h4 gxh4 a4 d5 a5 dxc4 a6 b6 Ra3 Nd7 Nh3 Rb8 Ng1 Rb7 axb7 a5 Ra1 Nb8 d4 e5 d5 Qd7 Be3 Qd8 Bd4 exd4 Kd2 Ke7 g4 Kd6 e4 c5 g5 h6 g6 f6 g7 c3+ Kd3 h3 Qc1 a4 Be2 h2 Qe3 c2 Qc1 c4+ Kd2 d3 e5+ Kc5 e6 a3 e7 a2 e8B c3+ Ke3 d2 d6 d1Q d7 Qe1 Qd1 Nc6 b8Q Nd4 Na3 c1Q+ Ke4 c2 Qa7 Qb1 Ke3 Qc7 d8Q Qf7 Ba4 Qg6 Qe8 Bf5 Qaa8 Bh3 Qf3 c1B+ Qd2 Qf1 Bd3 Ne2 Bdc2 Qe1 Bf5 Ne7 g8B Bg7 Bh7 Rg8 Qf7 Ra8 Qf8 Bh8 Qe8 Nd4+ Ne2 Ng8 Rg1 h1B Rg5 B1g2 Rh5 Bf1 Rg5 Qd1 Ng3 Bc4 Nh1 Ne2 Rg4 Qe1 Re4 Qc2 Rb1 a1N Re6 Qcd1 Ke4 Qc2+ Qdd3 Bd2 Rd1 Qb1 Qc2 Bc3 Ke3 Be5 Qb3 Bb8 Qa2 Ba7 Rd5+
Nn1r3q/1qp2K2/1R1qRBB1/PqRQ1r2/1b2nrB1/1Q1pp1N1/n1Pk4/8 b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 Ke2 e5 d3 e3 Nh3 e4 Qe1 b6 Qd1 Bb7 Ng1 Bd5 Ke1 e2 Kd2 Bc6 Ke3 Bb7 Kd4 e3 Kc4 Be4 dxe4 Be7 Kd3 Bf8 Kd4 Ke7 Kd5 Kf6 g4 e1R f4 h5 a4 h3 a5 b3 f5 b2 Qf3 h4 Rh2 b5 Nd2 b1Q Nc4 b4 Ne2 b3 Ng3 b2 Be2 Bb4 Nb6 Rf1 e5+ Kg5 e6 Nf6+ Ke5 d5 e7 d4 Ke6 d3 e8B Rf8 Qd5 Kf4 g5 Ne4 g6 Rf7 Rg2 h2 f6 h1Q g7 h3 g8Q h2 Bg4 Rf8 f7 Rf2 Bf5 Kf3 Ra3 Rf1 Rc3 Rf2 Bg6 Rf1 Rc5 Qd6+ Kf5 Rf2 Bd7 Rf1 Rg1 Kf2 Rg2+ Ke1+ Rf2 Rd8 f8R Qg2 Be6 h1Q Re8 Qh8 Rf4 Ra6 Na8 Rb6 Bc8 Rb5 Re6 Rf3 Bd2+ Kd1 Bc3 Rf2 Bf6 Kd2 Bh5 Rf1 Kg6 Rf2 Rh4 Rf4 Qb3 Qgh1 Kf7 Qf3 Rc4 Rbf5 Bg6 Qfh5 Bd7 Qh1 Rg4 b1N Rc5 Nbc3 Rg5 Na2 Rb5 Nec3 Rb6 Qb7 Bc8 Ne4 Bd7 Rb5 Rc5 Qhe5 Re8 Qg5 Bg4 Qgd5+ Re6 Qc4 Rcc6 Rbf5 Rc5 Qca6 Qh7 Qb5 Qh1 Nec3 Qc6 Ne4 Qcd5
1n1N2q1/R3nppB/2P2bPN/3Rnb2/1n1B3k/pQ2r3/1Q3R1B/bn1K3n b - - 0 1 illegal: No proof kernel
2R2r1N/2r5/r1b4Q/2QRrN2/2b1kp1Q/P2pBp2/1KRr1P1b/n4rqB b - - 0 1 illegal: No proof kernel
1NQ1B1RQ/r6n/3nK2B/nr1R1Pqp/3N1b2/1Qn4N/n1p1p2P/1n2r1k1 b - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 b4 dxc4 f4 a5 f5 axb4 f6 Bf5 gxf5 Qd7 Be2 Qc8 Bf1 Qd8 Kf2 Kd7 Ke3 Kd6 Kf4 Kd5 d4 c5 a4 g5+ Kg4 e5 f7 h5+ Kg3 b5 a5 c3 a6 b3 a7 g4 Ba3 c2 Nd2 c1N Bd3 b2 Ne2 b1N Nb3 e3 Nd2 b4 Qa4 b3 Ra2 e4 Kf4 g3 Nc4 g2 Qb4 g1N Qb5 b2 Qb3 Bd6+ Ne5+ c4 f8N Nc3 Ra1 b1N Qa2 Nb5 Qb3 Na2 Bc1 Nc6 Nd7 Na5 Nb8 Nf6 Kg5 Re8 Ng4 Re5 Nf2 Nh7+ Kg6 Qg5+ Kf7 Nh3 Rg1 Nf4 Ba3 Bc7 Bf8 Bd6 Bh6 Bc7 Qb2 c3 Rd1 c2 Qb3+ Kd6 d5 Kc5 d6 Nd5 d7 Ndc3 Nd4 e2 d8Q e1R Qc8 e3 Be4 e2 Bc6 Rd5 Rd2 Bf4 Ke6 Nd6 Bb5+ Kb6 Be8+ Rb5 Nbc6 Kc5 Rd3 Rab8 a8Q R8b7 Rg3 Ra7 Rg1 Na3 Rd1 Nab1 Nb8+ Rc7 Qg2 Nf7 Ndc6 Qd8 Qg8 Nd6 Qh8 Ra7 Nh3 Qh4 Rg8 Qg5 Qb2 Kc4 Rd3 Kc5 Rd5+ Kc4 Nd4+ Kd3 Qb3 Ke3 Ndc6 Kf3 Nf2 Kg2 Nd4 Kg1 Nh3+
bn5N/rbNQ4/4pr2/3BQP2/1R3npK/Q2R2N1/p1n1Pbrk/1r2B2r b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 Be3 bxa4 Bc1 f5 h4 g5 Qd3 Qa5+ Qd2 Qb5 Qd3 fxg4 Qd1 g3 Bh3 g4 Bf1 Qg5 hxg5 Bh6 Ra2 Bg7 Ra1 Bf8 c4 Kf7 f4 Ke6 b4 Kf5 g6 h5 b5 a5 g7 d5 c5 a3 b6 d3 c6 a4 b7 g2 Kf2 h4 c7 d4 Be3 d2 Ra2 h3 Kg3 e6 Bf2 d3 Ra1 h2 Nf3 g1R+ Bg2 a2 Ne5 a3 Qc1 d1R Qc5 d2 Be1 Rh6 Nc3 Ra7 Nd5 Ne7 g8N Rf6 Kh4 Rb1 Ng6 d1R Nh8 Rdc1 Bf3 Rg2 Rf1 h1B Qc3 Rb5 Rb1 a1N Rb4 a2 Qa3 Nc2 Rf2 Bd7 c8Q Bc6 Nc7 Nd5 Qd7 Bc5 Rb3 Rb6 Rd3 Rbb1 Rf1 Rf8 Nf6 Bf2+ Kh5 Rf7 Ne4 Rf6 Rg1 Na6 b8Q Ba8 Nd2 Bb7 Nf1 Ba8 Qbb2 Nb8 Qa1 Nb6 Bb7 Nd5 Q1b2 Ke4 f5 Kf4 Ng3 Ra6 Bb4 Ra7 Nf1 Ra1 Qa6 Rg3 Kh4 Bf3 Qaa3 Rg2+ Ng3 Be4 Rgd1 Bf3 Rd4+ Be4 R1d3 Rcg1 Be1 Rb1 Rb4 Rf1 Kh5 Rfg1 Nf1 Rh1+ Nh2 Nce3 Qa1 Kg3 Qe5+ Nf4+ Kg5 Bf3 Nf1+ Kh3 Bc6 Nc2 Ng3 Kh2 Kh4 Be4 Ba4 Bed5 Bb3 Bdb7 Bd5
Q1B1k1r1/n2P4/4prnp/B3RR2/3K4/q3NRBQ/1p2Pn2/Nr2bnnn b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Qd4 Qb3 Qd5 Qd1 Qd8 a4 c5 d4 b5 Kd2 c3+ Ke3 c2 f4 c4 a5 h6 d5 b3 g5 b2 a6 c3 g6 b4 g7 b3 a7 Qd6 f5 Kd7 f6 Qa3 f7 Nc6 Nf3 g1N Nh4 g2 Nd2 b1N Rh3 b2 Rf3 Nh3 Nb3 g1N Bd2 c1R Nf5 c2 Ba5 Nf2 Bh3 Nd2 Qf1 Rb1 Ra2 Rd8 a8Q Na7 Kd4 c1N Na1 Ncd3 Qg2 Nf1 Ne3+ Ng4 Rf5 Ngf2 Bg4 Nh1 Qh3 Ndf2 Re5+ Kd6 Bc8 e6 Rf5 Ne7 g8R Rh7 Rg3 Ng6 Rgf3 Ke7 Re5 Bg7 f8B+ Ke8 Bd6 Rh8 Bb8 Rg8 Bbc7 Bf8 Ref5 Be7 Bg3 Bb4 d6 Be1 Re5 Qb3 Ra4 Qa3 Rb4 Rd7 Rbb5 Rf7 Ref5 Rff8 Rbe5 Rf6 d7+
rB4Nn/1R2P1K1/Q3Qn2/5Bbr/p4p2/1N2qPkr/q1pr2B1/1rrNR3 b - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b6 b5 Ba6 a5 bxa5 b6 Bb5 cxb5 a4 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf4 c5 e4 a5 g4 h5 b7 a3 b6 h3 f3 d3 Be3 h4 Qb3 h2 Qc4 d2 Qc3+ d4 Qb2 d1R Qc1 a2 Nc3 d3 Rb1 a1Q Qa3 h3 Bg2 d2 Nge2 c4 Nd4 Nh6 Nb3 Qd3 Re1 Nd7 b8N h1R b7 h2 Nc6 Qa2 b8Q Be7 Qe8 Rc1 Ba7 d1R Bb8 Rd2 Nd1 c3 e5+ Kg6 g5 Kh5 g6 Kh4 e6 f5 g7 a4 g8B c2 Qd6 Nf6 Ke5 f4 Bh7 Kg3 Bf5 Rf1 Qc8 h1R Qa6 Rh5 Rb2 Bd8 Ne7 Rh7 Qd5 Qe3+ Qe4 Rfh1 Ng8 R1h3 Rb1 Rb7 Rb2 Nh7 Rb1 Bg5 e7 Nf7+ Ke6 Nh8 Qe5 Ng6 Kf7 Nf6 Qee6 Nh8+ Kg7 Rb5 Na1 Rb6 Rb5 Rb7 Nb3 Rb6 Rc5 Rb4 Rc7 Rb5 Rb7 Rb4 Nc5 Rbb1 Nb3
B1q2NKQ/3p1p2/3P4/1R1b2R1/1p1n1q1q/bPNR4/1QnNq2B/2k1rqq1 b - - 0 2 legal: proof: f4 a5 h4 g5 c4 gxh4 c5 a4 c6 a3 b3 b5 f5 Ra7 f6 Rb7 cxb7 Na6 b8B exf6 Ba7 f5 Be3 f4 Bd4 Nb8 Bdb2 axb2 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kf5 Kb4 g4 h5 a4 c5 e4 h3 d4 h2 a5 c4 g5 f3 a6 f2 d5 h4 e5 h3 e6 c3 e7 c2 e8N Rh4 a7 Ne7+ Kf6 Nbc6 a8Q Re4 g6 Nd4 g7 Re1 g8R Bb7 Bf4 c1Q Qh5 Qdc8 Bg2 f1Q Ne2 Nec6 Ng7 Nc2 Ne6 N6d4 Nec3 Qe2 Nd2 b1Q Qh8 Bd6 Rg1 h1Q Kg7 h2 Ra5 Be7 Rf1 Qg1 Nf8 h1Q Rf3 Qh4 Bh2 Bc5 d6 Bd5 Rd3 Qgf1 Na4 Ka3 Nc3+ Kb2 Qa6 Ba3 Be4 b4 Rb5 Bc4 Ba8 Bd5 Qa5 Qcd1 Qa4 Kc1 Qa7 Qhf4 Kh7 Qef2 Rg5 Qde2 Kg8 Q2h4 Qa6 Kb2 Qa5 Qbd1 Qa4 Kc1 Qa6 Qg1 Qa5 Qef1 Qa6 Qde2 Qa5 Bb2 Qa2 Ba3 Qb2+
6QN/Q1p2R2/2P2Kn1/2P1rnR1/qbB1p1bb/b1b2p1q/kb1B3N/3N2B1 b - - 0 1 illegal: No proof kernel
r1R5/Npr2n2/n1rRnK2/2B2Nn1/1p3Bb1/k2Rn2p/1Pq2QrP/3Q2B1 b - - 1 2 illegal: Other
2Q2Q2/2n1Kp1B/pPrn4/R1BN4/Pb3R1R/r1r2nq1/kNr2n1p/N4n2 b - - 0 1 legal: proof: e4 g5 c4 d5 g4 dxe4 f4 gxf4 h3 b5 g5 Bg4 hxg4 bxc4 Kf2 Kd7 d4 Kd6 b4 Kd5 b5 h5 a3 e5 g6 c5 b6 h4 g7 h3 g5 c3 g6 c4 Rh2 e3+ Kf3 e2 Kg4 e1N Kf5 c2 Rd2 c3 Rh2 f3 Bb2 c1R Nd2 c2 Ne2 e4 Nc4 Nf6 g8Q e3 g7 Bb4 Qf8 f2 g8N Qc7 a4 Nd3 Ba3 Ne4 Nb2 Nd6+ Kf6 Na6 Qd2 Re8 Qc3 Rc8 Ra2 Qb8 Ke7 Rc6 Rh1 Ra1 Nc1 e2 Nb3 e1N Rh2 Rc1 Na1 Nc7 Be2 f1N Rf2 a6 Rf4 Ne5 Bd3 N5f3 Bh7 Nd3 Rh4 Nf2 Rf4 Ba5 Bc5 Bb4 Ra3 h2 Rb3 Ba3 Rb5 Bb4 Rh4 Nde8 Ra5 Nd6 Bg6 Rh5 Rf4 Rh3 Bh7 Rd1 Rh4 c1R Qc2 Rd2 Qf5+ Ne5 Q5c8 Ra3 Rf4 Nf3 Rh4 Ndb5 Rf4 Rdc2 Rh4 Rg6 Rf4 Nd6 Nf6+ Kc6 Nd5 Rcc3 Rh4 R1c2 Rf4 Nb7 Rh4 Rd6 Ne3 Rf6 Qf5 Ne6 Qh3 Qg3 Qg4 Nc7 Qgc8 Qg6 Ng2 Kd5 Nf4+ Ke4 d5 Rc6 d6 Ke5 d7 Qg3 Bd6+ Kd4 d8R Rc1 Nd1 Kc4 Bc5 R1c2 Rd5 Nd6 Rf5 Qg4 Nd5 Qf4 Bd4 Qg3 Rff4 Rc1 Nc2 Kb3 Bc5 Ka2 Na1 R1c2 Nb2
2Q3q1/2N1ppb1/Rb4b1/nnb1pN2/1n1nQPQ1/PBB1r3/RB1b4/1k3K2 b - - 0 1 legal: proof: e4 a5 b4 b5 c4 h5 g4 hxg4 e5 d6 Ne2 dxe5 Ng1 Ra7 Bg2 Rb7 Bh3 axb4 Bf1 b3 Na3 b4 Nb1 Rb5 cxb5 Qd5 Qc2 Qd6 Qd1 Qd8 f4 Kd7 h4 Kd6 d4 Kd5 b6 Ke4 b7 g5 a3 c5 h5 b2 d5 c4 d6 b3 d7 c3 h6 g3 h7 c2 Ba6 g2 Bb5 g4 Ra2 g3 Ba6 Bg7 Bc4 Nf6 Rh3 Nd5 Bd2 c1B Rh1 Nc6 b8B Na5 Be3 Nb4 Qe2 Qg8 d8Q Bf5 Qc8 Bg6 Nf3 g1B Bc7 g2 Qd1 Bd2+ Ke2 Bf2 Nh4 g1B Bd4 Bfe3 Bc3 Bb6 Kf1 Bgc5 Qdg4 Ke3 Bd5 Kd3 Nf5 Kc2 Rh6 Kc1 Bd4 Kc2 Be6 Kc1 Nc3 b1N Bd5 b2 Nb5 Nc3 Bb3 b1N Bd6 Ne2 Nc7 Nbc3 Qb7 Nd3 Qe4 Nb5 Ba1 Kb1 Bb2 Bf2 Bb4 Bfc5 B4c3 Ned4 Qb7 Nb4 Qbf3 Qa8 Qe3 Rd8 h8Q Rd5 Qee2 Qg8 Qc4 Ne2 Qh7 Rd3 Qe6 Ned4 Qc8 Bh5 Re6 Bg6 Qh1 Re3 Qhb7 Ba7 Ra6 Bab6 Qe4+
1B6/p2pqrP1/1N2Bq2/1n3RQ1/P3B3/bKR1Rqqq/1p1rq1Q1/1bN2k2 b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 c5 g5 cxb4 g6 fxg6 Bd2 g5 Bc1 g4 h3 g5 Bb2 g3 Ba3 Nc6 Bc1 Ne5 h4 g4 Bh3 Nf7 Bf1 Ng5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 Ke7 c4 Kd6 Kc2 Ke5 e4 b5 a4 h5 c5 g2 g6 g3 c6 d3+ Kb3 Kd4 f4 h4 g7 h3 c7 h2 f5 d2 f6 Ke3 f7 Kf2 e5 Qf6 e6 Nh6 e7 Nf5 e8R Nd4+ Ka2 b3+ Kb2 b4 Re6 Nb5+ Re5 Ba6 Ne2 g1Q c8B g2 Qc2 d1Q Bb7 Rh4 Qh7 Rd4 Bf4 Rd2+ Qc2 Be7 Nbc3 Rf8 Nc1 Qf3 Bc4 Qe1 Ra2 g1Q Be6 Qgg3 Re3 Qee2 Ra3 Kg2 Rf1 h1Q Bc7 Qhh3 Be4 Bb7 Bb8 Bd5 Kb1 b2 Rb3 Bc4 Ka2 Bd3 Nd5 Bd6 Rc3 Bc5 Kb3 b1Q+ Qb2 Qe7 B6f5 Qa1 Be6 Bb1 Nb6 Bd6 Rcd3 Bc5 Qf6 Qae5 Qg5 Q5f6 Rc3 Bd6 Rf2+ Kg1 Rg2+ Kf1 Rh2 Rd8 f8Q Rc8 Qh8 Rf8 Rc5 Rf7 Rf5 Be5 Qhh5 Bb2 Rc3 Ba3 Qhh4 Qe3 Re2 Qef2 Ree3 Q2g2 Kc4 b3 Qh8 b2 Kb3 Qe2 Qhh6 Qhg4 Qh2 Q4h3 Qg2+
KnR1qk1n/1pq2P2/nB2r3/1P6/4B1nq/bpprQ1NB/2qN4/1N1Q2R1 b - - 0 1 illegal: No proof kernel
nN1B4/R1n3qp/4NbqQ/PR6/2B3kP/KpQ1b1R1/br1p2Q1/2b3qq b - - 0 1 illegal: No possible last move, all moves rejected
4r2r/nbbpR1qB/Q2pr1Nb/1Np3b1/4QN1B/1K1P4/3kPRBr/q7 b - - 0 1 illegal: No proof kernel
B1br1r2/2KQ4/NNpB1P2/nrb3pq/3b4/1QPRprqR/1N5R/1bk5 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 d5 h5 dxe4 Qe2 Nc6 Qf3 Ne5 Qd1 Ng6 hxg6 f5 Ba6 fxg4 Bb5+ Bd7 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 h5 f4 e5+ Ke3 Kc5 g7 b3 d4+ Kb4 a5 g3 f5 b2 d5 g2 d6 h4 d7 h3 f6 h2 a6 Ne7 g8R Nc6 a7 Na5 Nd2 Kc3 Nh3 b1R Nf4 b4 Ba3 b3 Ne6 b2 Ra2 Qe8 d8Q Qh5 Nc4 c6 Nc7 Rb8 a8N Bb4 Re8 Rf8 Q8d7 Rb5 Qf3 Rd1 Na6 b1B Rd8 Rd6 Nab6 g1B+ Ke2+ e3 Nb2 Rd4 Bh3 Be7 Bd6 Rf4 Bg4 Bf2 Qd5 e4 Qg8 Rf3 Qb3+ Kd4 Rg1 h1Q Rg3 Qg2 Rh3 Qg3 Bb4+ Ke5 c3 Kf4 Be6 Bc5 Bc4 Bd4 Bd6+ Re5 Nb8 Bc5 Ba6 Bd4 Bb7 Bg1 Bb4 Rb5 Ba8 Bc5 Na6 Bf2 Kd1 e2+ Kd2 e1R Ba3 Rc1 Ke2 Bfd4 Bb4 e3 Ba3 Rc2+ Kd3 Nb7 Kc4 Ke4 N2a4 Rc1 Rah2 Rd1 Nb2 Rf5 Rd2 Kf3 Rd3 Ke2 Rd2+ Ke1 Rdh2 Rf2 Bb4 Kd2 Ba3 Kc1 Bb4 Be7 Bd6 Rf3 Bb8 Rf7 Qf5 Be5 Rd7 Rd6 Qd3 Rf8 Qh7 Re6 Rd3 Rd6 Qf5 Rdd8 Qd7 Bc7 Kd4 Bc5+ Ke4 Bf4 Kf5 Bd4+ Ke6 Na5 Bc7 Bc5 Be5 Bd4 Kd6 Bc5+ Kc7 Bd4 Rdd2 Bc5 Bd6 Be5 Rd3 Bed4 Qg7 Bd7 Qe7 Bc8 Qd7
1k4r1/3pPbn1/rBrPbbb1/3r4/nr5R/Q1NQ1NKB/1pp5/2R2B1Q b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c4 gxh4 Na3 b5 Rh3 b3 Nb1 b4 Rh2 Qg5 Rh1 Qb5 cxb5 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Kd8 a4 f5 d4 h5 g4 c5 e4 Kc7 d5 h3 g5 h2 a5 f3 g6 b2 a6 b3 g7 h4 e5 f4 e6 c4 a7 c3 e7 h3 Bg2 c2 Qd4 Nf6 g8Q Bb7 Qf7 Nh5 Qg6 Na6 Nd2 b1R Ne2 Rg8 Qe8 Ng7 Ra5 Nc5 Bf1 Na4 Rg1 h1B Qf7 h2 Bg2 b2 Kf1 f2 Bh3 Be4 Nc3 h1B Nf3 Bg6 b6+ Kc8 Ke2 f1R Be3 Rbd1 Qd3 Ba6 Bc5 Bc4 b7+ Kc7 Qf6 Rfe1+ Kf2 Re6 Rb5 Rc6 Qh4 Rb8 a8B Bg2 Ng5 f3 Kg3 f2 Rb4 f1R Nf3 Rfe1 Qh8 Ree6 Rf1 Ba2 Rh4 Ra6 Rh1 Rec6 Bf2 Rd2 Rc1 Bh1 Bf1 Bg2 Qh5 Bh3 Bg1 Be6 Qh6 Re8 d6+ Kb8 Bb6 Bef7 Qhe3 Bae6 Qg1 Rec8 Qh1 Rc4 Bh3 Rb4 Qd5 Rbc4 Bf2 Ne8 Ng1 Bg7 Qde4 Rdd4 Qd3 Bf6 Be3 Ng7 Bf1 Rb6 Bf2 Ka7 b8Q+ Ka6 Be4 Rd5 Beg2 Rcc5 Qc8+ Ka7 Nf3 Ra6 Bh3 Re4 Qc6 Kb8 Bd4 Rc4 Bb6 Red4 Qb5 Rc6 Qb3 Rb4 Qa3
2r1n1kr/1bp5/2Q3nb/Bb2N1BR/p3Ppr1/4r1N1/KRQn1P1n/5BR1 b - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 c5 bxa4 b5 Qe7 Bg5 Qf6 Bc1 Qb6 cxb6 Bb7 Qc2 Ba6 Qd1 Bc8 Kd2 h5 Kc2 a5 Kb2 f5 e4 Kf7 g4 d5 g5 h3 b7 h4 b6 f4 Bc4 d3 Qc2 a3+ Ka2 a4 Rh2 d2 Ba6 d1N Be2 d4 Bg4 d3 Nd2 Bh6 Rh1 h2 Bf3 h3 Bg4 Nc6 b8B Nf6 g6+ Kg8 b7 Ne7 g7 Ne8 Rb1 Ne3 Ndf3 d2 Rb6 d1B Bb2 Be2 Ba7 Nf1 b8R Ng6 Ne5 Bb5 Ne2 Bb7 Rg1 h1R Ng3 h2 Be2 Nd2 Rd8 Rc8 Rd5 Nf3 Bf1 Nd2 Ka1 a2 Ba3 Nf3 Be7 Nd2 Kb2 a1R Bg5 Re1 Ka2 Re3 Qc6 B5a6 Rb2 Bb5 Rg2 Rg1 Bb6 h1N Ba5 Nf3 Rd1 Nd2 Rh2 Rg2 Rh5 Rg1 Ne2 Rg4 Ng3 Rb3 Bg2 Re3 Rg1 Nf8 Bf1 Ng6 Nf5 Ng3 Qc2 Ne2 Ng3 Nd4 Nd7 Kf7 Qc6 N4f3 Qc2 Nf6 Qc6 Nh2 g8Q+ Ke7 Qgc4 Ke8 Qc3 Kf7 Ne5+ Kg8 Qc1 Ne8 Q1c2
3nR2b/7N/1p1rQ2n/1qn1p2k/1NP2Q2/1BbbKR1P/1r2Bp1p/2B2rN1 b - - 0 1 illegal: No proof kernel
2Q3KB/1r5N/pb3kbQ/pR1p1r1b/5Pn1/1Rr2PnB/p5R1/q1nN2N1 b - - 0 1 illegal: No possible last move
n2bR3/3Np1kB/1Bp2Q2/RNn4n/2bPB2r/KP2p1b1/1pqRQ3/3r2r1 b - - 0 1 illegal: No proof kernel
3b2Q1/p1BkpR2/6N1/bQ1pB3/2RNN1p1/Prrq1P2/n2n1r2/1Bn1K2b b - - 0 1 legal: proof: g4 c5 b4 h5 bxc5 hxg4 e4 f5 d3 fxe4 Bg2 exd3 Bh3 Nh6 Bf1 Ng8 h4 b5 c4 g5 c6 b4 c5 b3 h5 d2+ Ke2 g3 a3 g2 c7 g4 c6 b2 h6 Na6 h7 Nc5 Nf3 g1B Qb3 d1N Nd4 Bg7 Nc3 b1R Qb5 Rb3 Ke1 Nf6 Nce2 Nfe4 Nf4 Ndc3 Ng6 Bb7 c8N Na2 c7 Rf8 h8B Nd2 Rh7 Bh1 Bd3 Bh2 Bb1 Nd3+ Ke2 Bge5 Rf7 Bg7 Bb2 Ndc1+ Ke1 Rb8 Bc3 Bd6 Ba5 Rc3 Bb6 Bge5 Bf6 Bb4 Bg7 Ba5 f3 Rh8 Bf6 Rh2 Bg7 Rf2 Bf6 Bf4 Be5 Nb4 Ra2 Rb7 Rb2 Nba2 Rb4 Be3 Rc4 Bf4 Bc5 Bg3 Bcd6 Bh2 Qc6 Rbb3 Qb5 Bf4 Nb6 Be3 c8Q Bf4 Nd5 Be3 Nc6 Beb6 Bc7 d6 Qa8 Kd7 Qb8 Qh8 Qg8 Qh7 Bb8 Bd8 Nf6+ Kc8 Ne4 d5 Bbc7 Kd7 Bb8 Qh6 Bbc7 Qe3+ Kd1 Qd4 Ke1 Qd3 Nd4+
6n1/1q2qRr1/1R2Qrn1/N3b1B1/p5kP/rBQp3p/NpbK2P1/N2b3Q b - - 0 1 illegal: No proof kernel
7n/1BR2NR1/pN2bR1K/Pr1r2n1/3Q1pq1/r2Q3p/1Nbp1B1P/1qn2k2 b - - 0 1 legal: proof: d4 b5 f4 e5 c4 bxc4 f5 exd4 b4 a6 f6 Bc5 b5 Ba7 b6 gxf6 bxa7 f5 Qa4 f4 Qb3 Qf6 Qd1 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kh5 d5 a4 f5 e4 f3 g4 f4 a5 d3 e5 Kd4 e6 c5 g5 f2 e7 d2 e8R c3 g6 c2 g7 c4 Re7 c3 Na3 Nd7 Bg2 Kd3 Qg4 d1B Kg5 f1Q Qh5 d4 Nb1 Nc5 Nf3 Be6 Nfd2 Qd7 Nc4 Nh6 g8N Rd8 a8Q Nf7+ Kf6 Ne4+ Kg7 Neg5 Be3 c1N Qa7 c2 Qh3 Ke2 Bf2 h5 Rg1 h4 Bb7 d3 Nba3 d2 Nb6 Rh5 Nh6 Nh8 Nf7 Qc8 Rc7 Rd5 Qb3 h3 Nac4 Qe1 Rg2 Kf1 Rb1 Qe4 Qg3 Qf5 Rb4 Qb8 Nb2 Qg4 Bc8 Qb7 Rd4 Rb5 Rd6 Qe4 Bb7 Qb4 N2c4 Qb1 Qd3+ Qe2 Rd5 Nh7 Be1 Na2 Bf2 Rf5 Rg6 Ng5 Nd7 Re5 Qad4 Re3 Rf5 c1R Nb2 Rcc5 Q3e4 Bc2 Kh6 Nc1 Nb6 Rd5 Rff6 Ra3 Rg7 Qg4 Qed3+
b1B5/qB4P1/1p1n1RKb/b3pnpP/1qpN2nB/3RkN2/Q5RQ/r6r b - - 0 1 illegal: No proof kernel
q2bQ1bk/5p2/npqrn1p1/QN4n1/pb6/2R4r/1P1N2PN/1KBBR2R b - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 Nc6 cxd5 Nb4 h5 Na2 a5 Qf6 a6 Qxa6 h6 Qxh6 Na3 Qh5 Nb1 Qh2 d4 h5 Kd2 a5 Kc2 c5 e4 c4 d6 b6 d5 c3 e5 h4 e6 a4 e7 f3 Bh6 f2 Be3 h3 Bc5 Nh6 Qg4 Nf5 Be2 f1N Qf3 Nd4+ Kd1 c2+ Ke1 c1B Kd1 Ne6 Kc2 Bg5 Na3 Ng3 Rc1 Ne4 Nb5 Nb4+ Kb1 Na6 Rc3 Bb7 Qf2 Rd8 Qf5 Qe5 Bd1 h2 Bb4 Qf6 Nf3 Rh3 Nd2 Ba8 Re1 h1Q Bc5 Qf1 Be3 Qc4 Qe5 Qf3 Qf5 Qc6 Rh1 Kd7 e8R Bf6 Qh5 N4g5 Bf4 Nd4 Ree3 Nde6 Ree1 Ke8 Be3 B8e7 d7+ Kf8 d6 Kg8 Bf4 Ne4 Qc5 Kh8 Qb4 N4g5 Qa5 Bd4 Be3 Bc5 Bf4 Bb4 Be3 Re8 d8Q Bb7 Qd7 Bd8 Bf4 Rf8 Qe8 Bc8 d7 Qa8 Rhf1 Bb7 Rh1 Be4+ Ka1 Bh7 Be3 g6 Kb1 Bc7 d8N Bg8 Nc6 Bd8 Ncd4 Qfb7 N4f3 Qc6 Qd7 Re8 Nh2 Re7 Qe8 Rd7 Ne4 Rd4 Bc1 Rd6 Nd2
2N3b1/2R2p1b/p2RQrb1/p7/kqQK1N1P/1BnB1P1p/1q2r1Q1/Br4n1 b - - 0 1 illegal: No proof kernel
k2nq2R/3pQ3/nqQ1bB1N/N2Rq1b1/Pr1Ppb2/1p6/3prR1N/1B1K4 b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 hxg4 Bd3 c5 Bf1 f5 exf5 c4 Qd3 cxd3 f4 e5 c4 b5 a4 g5 h4 e4 h5 d2+ Kd1 g3 f6 b3 h6 g4 h7 g2 c5 b4 c6 b2 f5 g3 c7 Na6 Bc4 Ne7 Rh4 Bb7 c8Q Bh6 Rh5 Bg5 Na3 b1Q Bd3 Bd5 Qc6 Rb8 Nf3 g1B Nc4 g2 Na5 Be6 Nh2 B1e3 Ra3 Qc8 f7+ Kd8 f6 Bef4 f8N Qc7 f7 Kc8 Ng6 Rf8 h8R g1Q+ Nf1 Rb5 Ne5 Kb8 Ng4 Qe5 Nh6 Rb7 Bc2 Ka8 Rf3 Qb2 Bb1 Qg2 Qc7 Nc6 Nh2 Nd8 Qc6 Rg8 f8Q Qg4 Rh3 Qh5 Qe7 Qe8 Rf2 Rf8 Rc3 Rf7 Rc5 Rh7 Nf5 Rh3 Rb5 Re3 Nh6 Re2 Rc5 b3 Rd5 Qc3 Ba3 Qb4 Qf8 Qb6 Be7 Qbc7 Bf6 Qcd6 Qc2 Rb4 Qe7 Qb6 Qc6+
3R1q1q/2PbNBP1/2NR1n2/1p2Q2r/5Knb/b2pR1Q1/p2B2p1/2k1n1rN b - - 0 1 illegal: No proof kernel
2N1R1Q1/1P4q1/3qP1bp/qpr2Bpn/NB3nK1/kN1nB1bp/r5Q1/1R6 b - - 0 1 illegal: No proof kernel
3q2kq/np3r2/1P1nQ2n/R3QNN1/b1QR1r2/Pp1p1B1q/1p4BB/3bK3 b - - 0 1 illegal: No proof kernel
Bq1qQ1q1/Np3nR1/pQ2b1r1/1N2P3/1n1p2pB/KPr3rR/8/k1R2b1N b - - 0 1 illegal: No proof kernel
1R2Nr2/1ppQ1r1n/1PR3bb/P2nKpB1/Q5pR/1Q1qkq2/3nN3/2bB4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 cxd5 e5 b5 exf4 Qb3 Rh5 Qc3 Rh8 Qb4 axb4 Kf2 Kd7 h4 Kd6 a4 Kc5 d4+ Kc4 e4+ Kb3 e5 Kc2 d6 g5 e6 f5 b6 g3+ Kf3 b3 a5 b2 d7 g2 e7 Kd1 e8Q Rh5 d5 Nf6 d6 Kc2 Nc3 b1N Nd5 Rh7 h5 Na6 h6 Nb4 Be2 Rg7 Bd1+ Kd3 Ne2 g1B h7 Be3 h8R Nh7 Nf6 g4+ Kg2 f3+ Kg3 f2 Rh4 f1Q Rg8 Bg1 Bg5 Be3 Qe6 Kd2 Qb3 Re7 Qa4 Bh6 Ra3 Rg7 Rc3 Rb8 Rc6 Qf3+ Kh2 Kd3 Re8 Bc1 Rf8 Qe4 Kg3 Nd2 Re8 Qd5 Kf4 Qf3+ Ke5 Ra8 Nf4+ Ke3 Rg8 Qf8 d8Q Be6 d7 Bf7 Qc8 Rb8 d8Q Bg6 Qe6 Rf7 Qdd7 Rc8 Qea2 Nd5 Qb1 Qa3 Ne2+ Nf4 Re8 Qd3 Qbb3 Ra8 Re7 Raf8 Re8 Kf2 Rb8 Nd5 Nf4 Ke3 Ne8 Qh3 Rd6 Qg2 Rc6 Qf3 Ne2+
2KNBN2/Pn2rb2/3Q1p2/p1bQR2P/p1RR1B2/2b1N3/2n2p1r/1qrq2k1 b - - 0 1 illegal: No proof kernel
K1B1QR2/P4nNp/1qQ2b2/1p2BqQn/8/1p1Bp1R1/1Pk1n1N1/q1b2r1r b - - 0 1 illegal: No proof kernel
1nB3KB/Pb1Nr1p1/qr1p4/qR6/2pk2qP/3Rp1B1/Q1QbnrN1/3R4 b - - 0 1 illegal: No proof kernel
1Q6/p1q1R3/Bq1Rn3/2B3pN/1N1Q2KR/1B1p2p1/rPbn3P/1bqr2bk b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 e4 Kg5 e5 Kh4 c5 d5 e6 g5 e7 f5 e8Q d3 c6 f3 c7 d2 b6 g3+ Ke3 f4+ Kd4 f2 Ke5 f3 b7 d4 Ra2 Nc6+ Ke4 Nf6+ Kd3 Ne4 b8R Rh6 Ra3 Bf5 c8B Bc5 Ra2 Qc7 Rb4 Nd8 Nh3 Ne6 Ba6 Rd8 Na3 Kg4 Be2 f1Q Nf4 Qf2 Nh5 Kh3 Nc2 Kg2 Re1 Bg6 Bf1+ Kh1 Qg8 Rd6 Qb8 Qg1 Rc4 f2 Nb4 Bf5 Qg4 d1B Be3 Bc2+ Ke2 Nd2 Ra4 Bb6 Rc6 Bb1 Bc4 Bfc2 Bb3 Rd5 Rd6 Ra5 Ra1 Ra2 Qf4 Rh7 Qh4 Rd7 Qf4 Nc4 Kf3 Nd2+ Kg4 Rd8 Bd3 f1Q Ba6 Qb5 Re2 Qc1 Bg1 Bc5 Re5 Qbb6 Qf6 Ng7 Re7 Ne6 Qg7 d3 Qd4 Rf8 Nd5 Rf1 Bf2 Ra5 Ra4 Rd1 Rc4 Ra4 Nb4 Ra2 Qe5 Be3 Bg1 Bf4 Bc5 Be3 Re4 Bg1 Qd4 Qcc6 Kh3 Qd7 Rh4 Qdc7 Kg4
k4R1B/p1K5/2Q1r1rb/1Rq1pb1p/2nqN3/p1R1Bn1P/4NP1b/1N2Q2n b - - 0 1 illegal: No possible last move
1bR1N3/p4Bn1/nPqbr2p/1RB3p1/q2B1pK1/rQq2R2/P5k1/N1n3Q1 b - - 0 1 illegal: No proof kernel
K4Qn1/p1q1b1p1/1bR1R3/1kn2NRb/B2B1PP1/2q2pN1/Q1Q1p2r/1q4r1 b - - 0 1 illegal: No proof kernel
2R5/N3P2b/1B2k1pK/Q2bbB2/3Qp1BP/N1r1RbQr/b2n1pp1/q1n5 b - - 0 1 illegal: No possible last move
1r3R2/2K1p3/B1N1pq2/4P2k/2bQ1pnP/1r1R1B1N/1nbp1Br1/rQr2R2 b - - 0 1 illegal: No proof kernel
3r2Nq/bN6/6R1/pp1r4/BpPBN1p1/1PnbKQ2/nk1R1Q2/2rr2Qb b - - 0 1 illegal: No possible last move, all moves rejected
1NR2R2/b5nk/1ppnNKB1/b2qn3/1B2Bp2/2Pr2N1/1Pp1r2b/Q2Q2b1 b - - 0 1 illegal: No possible last move, all moves rejected
b1R1k3/2r1q3/p2b1p2/2n1Qr2/1PQ3NK/BRNn2pp/3P1Qrr/NB3b2 b - - 0 1 illegal: No possible last move, all moves rejected
QBr2rbb/3N2np/RK1Q3b/2pR3P/1k3PB1/n1p4n/Q1p2qnB/N7 b - - 0 1 illegal: No proof kernel
2k4n/B2rB1rp/5p2/1P1q1pR1/1R5K/1R2rPQn/1bNpb2B/QN3r1n b - - 0 1 illegal: No proof kernel
nnb2BN1/1Rr1Q1Pp/1n1K1N2/b2p3q/n7/1b2rkP1/1pNpR2Q/5R1B b - - 0 1 illegal: No possible last move
1RQ2r1N/1R1P4/p1nP1prp/3b3K/2r1N1Q1/5Bp1/n2BRq2/3rbkBb b - - 0 1 illegal: No proof kernel
1Q1qr3/rnbp2Nr/nk3B2/1P2Q2p/1BQP3p/2BR1r2/p4n2/NR4Kb b - - 0 1 legal: proof: b4 f5 e4 fxe4 h4 b5 c3 g5 Bc4 gxh4 a4 c5 Bb3 c4 axb5 cxb3 Kf1 e5 f4 a5 d4 h5 g4 b2 c4 a4 b6 a3 f5 e3 b7 e4 b5 a2 f6 Ra6 f7+ Ke7 g5 Kd6 c5+ Kc7 g6 Ra7 c6 Ra6 g7 Ne7 g8Q Bh6 f8B Bg7 Rh3 Rh7 Qe2 Nf5 Nf3 Nd6 Nbd2 b1R Qgc4 Be5 Nb3 Kb6 c7 Ra7 Ng5 Na6 b8B Bb7 c8Q Bc6 Qh2 e2+ Kg1 e1N Bd2 e3 Bc3 e2 Rd3 Bh1 Ne6 Nb7 Bfb4 Bc7 Ng7 Rb2 Rc1 Rb1 Na1 Rb3 Rb1 Ra3 Rh3 Nd3 Qe5 Nf2 Rd3 e1R+ Kh2 Re3 Kg1 Re2 Qed5 Bg3 Be5 Re3 Bf6 Bc7 Qb8 Re8 Qe5 Rb3 Rdd1 Ra3 Bd2 Rd3 Bdc3 Rf3 Rd3
BRQ4N/1B1p1p2/bR1K1n2/pp1b1P2/k3R2r/N3b1n1/P3r3/1b1nqQB1 b - - 0 1 legal: proof: d4 c5 b4 e6 bxc5 e5 h4 exd4 c3 dxc3 Ba3 g5 Bc1 gxh4 g4 h5 e4 a5 Ke2 b5 Kd3 c2 Kd4 h3 Kd5 h2 f4 h4 g5 h3 e5 Ba6 c6 Qe7 c7 Bh6 c8B Nc6 e6 Nd4 f5 Ne2 g6 Ng3 g7 Be3 Ne2 Rh4 Bb7 Nf6+ Ke5 Kd8 g8Q+ Kc7 Nf4 Kb6 Bfg2 Kc5 Qf1 Kb4 Qc8 Ka4 Na3 Rb8 Rg1 h1B Ng6 h2 Nh8 Qb4 e7 Qe1 Bgc6 Be4 e8R h1B Kd6 Bhf3 Bb2 c1N Bd4 Nce2 Rc1 Bd5 Re4 Nc3 Ba8 Bg2 Bcb7 Nd1 Rc6 Bf3 Rb6 Be2 Qf3 Bd3 Qf1 Bb1 Rg2 Ne2 Rg8 Ng3 Qc7 Re8 Qc3 Re5 Rb8 Re8 Qc8 Bd2 Rg4 Re2 Re4 Bc1 Re5 Bf4 Bg1 Be3 Re4+
Nr1NQ1rr/2P1B3/R1p4b/2QbB1Rp/Kn6/P7/NpB1p2b/b2n1k1q b - - 0 1 illegal: No proof kernel
q2n1QNQ/2p1B1pp/2nN1B1N/1pnR1bPR/r7/3b4/2P4K/B1r1kbn1 b - - 0 1 illegal: No proof kernel
3b1N1R/P4r1p/1n3r2/pQBnkP1B/R1n3pK/Q3Nbp1/1qb1b2B/N7 b - - 0 1 illegal: No proof kernel
r1RNn3/b1rb4/N4qbB/P1pQR1pq/5k1p/1pKnQ3/1B2Q1bP/5N2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g3 axb4 g4 fxg4 d4 e6 d6 Qe7 d7+ Kf7 d5 Nf6 d6 Ng8 Bg2 Qd8 Bd5 exd5 Kd2 Kf6 e4 Ke5 a4 h5 a5 b5 f3 g5 Ra3 h4 Bb2+ d4 Ra2 b3 Qf1 g3 Nc3 d3 Qe2 b4 Na4+ Kf4 e5 g2 e6 Na6 e7 Nf6 e8Q Rh7 Nc5 c6 Q8e7 Ne8 Ra3 Qb6 d8N Bd7 Ra1 Bg7 Re1 Bd4 Q7e3+ Kf5 Ncb7 Nc5 f4 Rf7 Nf3 g1Q Rc1 Qg4 Rhe1 Qh5 Rc4 Kg4 f5 Rh7 f6 Rf7 Ba1 b2 Rc2 b1B Bb2 Re7 f7 b3 f8B Rh7 Bh6 Rf7 Qe6+ Kf4 Rcc1 Bg1 Kc3 d2 Qd5 d1B Nd2 Qa6 Nf1 Nd3 Nc5 Qb6 Na6 Rg7 Qe7 Bf3 Re5 Bg2 Qb5 Qf2 Qc5 Qff3 Qf2 Rf7 Qe2 Ba7 Rc2 Bc8 Qe6 Rc7 d7 Qf2 Nf7 Qb6 d8Q Bd7 Qde7 Qf2 Qd5 Qb6 Nd8 c5 Rd2 Qf6 Qee6 Nc1 Rd4+ Bbe4 Rb4 Nd3 Rb8 Bg6 Rc8 Bb8 Qh3 Ba7 Qhe3#
qkQ3q1/3RnB2/5r1p/4Bb1R/p2NNnpr/2bQpB1P/1rP2r2/6RK b - - 0 1 illegal: No possible last move
RN5R/2bb2Bq/2k2Kpp/Qrq1ppP1/1n2N3/1P1Rn1b1/br1Q4/3B1B2 b - - 0 1 illegal: No proof kernel
R1b1B3/2Qn4/nb1p2P1/2rb1pP1/k3prRN/p3Bq2/1Q3qbK/2N2QR1 b - - 0 1 illegal: No proof kernel
3N3n/2RR3P/bN2q3/B4b1P/p1qp1b1p/1NQ4Q/2rpB1rQ/bnk4K b - - 0 1 illegal: No proof kernel
4r1bN/2qn3P/1R1r1bn1/1N1p1B1Q/qR2Q2N/r1B5/p2Pppr1/KR2k3 b - - 0 1 illegal: No proof kernel
rB1b4/Q2QNqrp/2pRQb2/1B1N1n2/2p2pPR/7R/1q2P2K/b2knb2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 bxa4 Rh6 e5 Rh1 exf4 Kf2 Kd7 b4 Kc6 d4 Kb5 g3 a5 Kg2 f5 d5 a3 g6 a2 d6 a4 d7 f3+ Kh3 a3 g7 f2 Bd2 Nc6 Bf4 Be7 Bg2 f1Q Kh2 Nd4 Nh3 Nh6 g8Q Nc2 Qe6 Ka4 b5 Kb3 b6 Rg8 b7 Rg7 Bc6 Qh8 Nc3 Bd8 Bb5 c6 b8Q Kb2 Qc7 Ne1 Qa7 Qf3 Qdd6 Kc2 Nd5 Qf1 Rb1 a1B Ne7 a2 Rb3 Bf6 Be5 a1B Nf4 Qf3 Nfd5 Kd1 Qdc7 f4 Qcb7 Qc3 Bb8 Qb2 Rc3 Nf5 g4 Qf8 Rh3 Qf7 Qe4 Ba5 d8R Be6 Rd6 Bd8 Nb6+ Bd5 Qd7 Nd4 Qee6 Bg2 Nbd5 Nf5 Rg1 Bf1 Rgg3 Be5 Rh4 Bf6 Rgh3
1b1BQ3/N2q1p2/4pB1q/1k1qqp1R/p3nRr1/2QrBP1b/1PnQ1N2/2K5 b - - 0 1 illegal: No proof kernel
1Bb1kr2/b3pqQ1/N1KBP1Q1/2p2pp1/2q2N2/3R1nrP/3R1r2/NR3rn1 b - - 0 1 legal: proof: f4 b5 g4 d5 a4 g6 c4 dxc4 axb5 Bh6 g5 Bf8 f5 Nc6 Bg2 Nb8 Be4 gxf5 g6 f4 g7 Bh3 Bd3 Bc8 Bg6 hxg6 Kf2 a5 Kf3 g5 Ke4 c3 d4 c2 b4 f3 h3 a4 d5 c5 b6 Ra7 d6 f5+ Kd5 f2 e4 f1Q b7 a3 b5 a2 e5 Nc6 b8N Nh6 g8Q Ng4 b6 Qa6 b7 Nd4 Ne2 Nh2 Bf4 c1R Nd2 Rc3 Nb3 Rg3 Qc1 Qa4 Qc3 Nhf3 Rad1 a1R Qe6 Ra5 Na6 Bg7 Rhe1 Ng1 d7+ Kf8 Qg6 Qe8 d8R Ndf3 e6 Be5 Rd7 Qc4+ Kc6 Qf7 R7d3 Bb8 Bd6 R5a2 Nf4 Ke8 Qcg7 Rf2 R1d2 Ba7 b8B Rf8 Red1 Rb1 Na1 Rc1 Rb2 Rb1 R1d2 Rbf1 Rb1
1N2R1QK/3p1q2/1R1PN1p1/k1b1BrR1/p2Q2N1/1rP1p3/b3rnn1/4qBr1 b - - 0 1 legal: proof: e4 b5 b4 h5 a4 f5 g3 fxe4 g4 hxg4 axb5 c5 Bh3 cxb4 Bg2 Nf6 Bf1 Ng8 Ke2 a5 Ke3 e5 d4 b3 h4 g3 f4 a4 h5 g2 h6 g6 h7 b2 d5 Nf6 c3 Bc5+ Qd4 Ra5 d6 Ba6 b6 Nh5 f5 Qf6 b7 Kd8 Ne2 g1R Nd2 b1R Nc4 Re8 h8Q Qf7 f6 Rb3 Nf4 Nc6 b8N Nb4 Qg8 Kc8 Ne6 Kb7 Rb1 Nf4 Rh5 Nbd3 Rg5 Nf2 Rb2 Ka7 Rb1 Bb7 Bd2 Bd5 Bc1 Qf8 f7 Qe7 f8R Qf7 Rb2 Re7 Re8 Ng2+ Ke2 Kb7 Ne3 Kb6 Ng4 e3 Bd2 e4 Be1 Nh3 Bg3 Rab5 Be5 Ka5 Kd1 e2+ Kd2 e1Q+ Kc2 e3 Kd3 Bc4+ Ke4 Rb6 Bg3 Nf2+ Ke5 R6b5 Rb1 Rb2 Bh2 Re2 Rb3 Rb7 Rb6 Ba2 Bf4 Qh7 Kf6 Rg7 Rc6 Rb3 Rb6 Re7 Nf8 Re5 Ne6 Qh5 Kg7 Rf5 Bg3 Qh2 Be5 Qf4 Kh7 Qf3 Kh8 Qd5 Nf8 Qf7 Ne6
1n1N2b1/rq1pn1Q1/P1N5/QBpk1n2/2P1npqN/1b3rp1/1K3BR1/2Q4R b - - 0 1 legal: proof: d4 h5 b4 e5 g4 exd4 e4 hxg4 f4 a5 e5 Bd6 e6 Be5 fxe5 axb4 Kd2 Ke7 h4 f5 a4 c5 h5 b5 a5 g5 h6 g3 a6 b3 h7 g2 Nf3 g1Q Ra5 g4 Be2 f4 Kd3 b2 Ra4 b4 Ra1 b3 Nc3 b1B Be3 b2 Na2 Ra7 Qc1 Bb7 Nh4 Qc7 Bf2 Bd5 Nb4 Bba2 Rh2 b1N Rg2 Nc3 Nc6+ Ke8 e7 Kf7 e8N Ke6 Nd6 Qb7 Kd2 d3 Nf7 Bdb3 Nfd8+ Kd5 e6 Ne7 Rb1 Re8 h8Q g3 Bf1 Ne4+ Kd1 d2 Qg7 Qh2 Bb5 Qh3 Ra1 Nc8 e7 Qf5 Ke2 d1N Kd3 Qg4 Rb1 Ne3 Ra1 Ng5 Kc3 Nf5 Kb2 Ne4 Rb1 Rf8 e8Q Nce7 Qeg6 Rh8 Qc3 Rh6 Qgg7 Rd6 Qa5 Re6 Ba4 Rd6 Ne5 Rb6 Nec6 Rb4 Bb5 Rc4 Qe3 Rc3 Rh1 Rd3 Qc1 Rf3 Qg1 Kd6 Qge1 Bg8 Qa1 Kd5 Qc1 Bb3 c4+
1Qn5/2PQQp2/2pR1K2/q5rb/1nP1p2R/p1B1bB1b/5RNk/1r2qbN1 b - - 0 1 illegal: No proof kernel
7B/QnPpQ2R/1r2npkN/4qb1n/1q2NBNp/4R2p/K2Q1P1b/6rn b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 axb5 e5 h5 e4 h6 gxh6 e3 h5 Bc4 h4 Bd3 exd3 Kd2 a5 b4 h5 g4 a4 c4 a3 g5 a2 g6 Nf6 e4 Ba6 c5 Nc6 b6 Rh6 b5 Qb8 g7 Bd6 g8N Nd8 b7 Bh2 c6 Qe5 b8B Nb7 b6 h3 Bb2 h4 Kc1 Bb5 Nc3 Nh5 Nf3 d2+ Kc2 d3+ Kb3 Ra6 Rg1 Rg6 Nh6 Ke7 Qc1 d1N Qd2 Ne3 Rae1 Nf5 Re3 Kf6 Bd6 a1Q c7 Qa5 Rg5 Ba4+ Ka2 Nfg3 Ba1 Rg8 Rg7 Qb4 Rh7 Nh1 Bb2 Rg1 Ba1 Qeb5 e5+ Kg6 e6 Qe5 e7 Bd1+ Na4 Bc2 e8Q Ra8 Qe7 Rb8 Qe1 d2 Nc3 d1N Qd2 Nb2 Ne4 Nd3 Bc3 Bg3 Nh2 Ndc5 N2g4 Ne6 Bd4 Bh2 Bc3 Qf5 Bh8 f6 Bf4 Qe5 Ng3 Bf5 Ne4 Nd6 b7 Rd8 b8Q Nb7 Qa7 Ra8 Qa3 Ra6 Qa4 Rb6 Qa7
1q1n4/2pN3P/N4Q2/3R1K1k/1Pqq2R1/1p1QpBbq/2b2p1r/2nN1RBr b - - 0 1 illegal: No proof kernel
1Q1b1BK1/2pp4/qNr3p1/bn1rNR2/3b1P2/1nQp4/b1q1BP2/1k2BNR1 b - - 0 1 illegal: No proof kernel
B2Rnq1B/1P1Rb1rp/pQRN4/Kp1p3n/4QbN1/bq5b/4rk1P/7Q b - - 0 1 legal: proof: d4 b5 b4 f5 g4 fxg4 a4 e5 axb5 exd4 b6 c6 b5 cxb5 Kd2 Kf7 c4 Kg6 f4 Kh5 e4 Kh4 f5 g5 f6 g3 e5 d3 Kc3 d2 e6 d6 Kb4 a6 e7 g4 e8Q g2 f7 g3 c5 Qc7 c6 Be7 f8R Nd7 Ne2 g1B Nf4 g2 Na3 Be3 Bb2 g1B Nc4 Ndf6 Ka5 Ra7 Rc1 Qd8 c7 Bh3 c8Q Nh5 Qc7 Ngf6 Nd5 Bf4 Bg2 Bc5 Nde3 Ba3 Ba8 d5 Nd6 Rg8 Rg1 Rg2 Rc6 Re2 Rg7 Rb7 Qg1 d1Q Qh1 Qb3 Qg6 Ne8 Qge4 Qc8 Rgf7 Qf5 Bh8 Qf6 Qd8 Rd7 b7 Qg7 Ng2+ Kg4 Qb6 Qf6 Qc2 Kf3 Ne3+ Kf2 Qce4 Neg7 Rd8 Ne8 Rg7 Qf8 Rg6 Bh4 Re6 Rf7 Re7 Rg7 Red7 Be7 Ng4#
1n2NN1r/P3N1K1/1Qq2nb1/RBq5/rRp1b1R1/q1P4p/p5p1/3qQ1Bk b - - 0 1 illegal: No proof kernel
1K1b1qN1/p2p1nP1/R2npBb1/n3r1Q1/1P2B2p/1Q6/2NQrR1B/k1nq4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Ke6 g4 Kd5 f4 h5 c4+ Kd6 g5 e3+ Kd3 e2 Ke4 e1Q+ Ne2 h3 g6 e6 b6 h4 c5+ Kc6 Ke5 Kb5 g7 Kc4 f5 h2 b7 d3 c6 d2 f6 Nh6 f7 Be7 c7 Qf8 Bb2 Bd8 Na3+ Kd3 Rg1 h1N Nc2 Nf2 Rg2 Ne4 Rf2 Nd6 Bg2 Qf1 Qc1 d1N Ra6 Nc3 Ned4 Ne2 Qg5 Nc1 Nc6 Qd1 Be4+ Kc4 Bc3 Kb3 Ne7 Rh7 Ng8 Nc6+ Kf4 Rb8 Bf6 Na5 Ke5 Kb2 Qd2 Ra8 b8B Bb7 c8Q Ka2 Qc5 Kb1 Bc7 Rc8 Bb8 Rc7 Qce3 Rc3 Qg3 Re3 Qg5 Re2 Bc7 Bc6 Bb8 Bb5 Bc7 Bd3 Bb8 Qe8 f8Q Rh8 Qf7 Qf8 Qfh5 Kb2 Qf3 Ka2 Kd4 Nhf7 Kc5 Nc4+ Kb5 Rh5 Bh2 Kb1 Bc6 Bg6 Be4 Ncd6+ Kc5 Nac4 Qb3+ Nb2 Qbc3 Nbc4 Qgd5 Na5 Qce3 Rf5 Qg5 Nc8+ Rd6 Nh8 Kb5 Re5 Ka6 Nf7 Rc6 Nab3 Kb7 Na5+ Kb8 Ncd6 Ra6 Kb2 Na3+ Ka1 Q5d3 Nc8 Qb3 Ncd6 Nc2+
Qr1Q1NN1/p1P2R2/1n5p/2R2r1p/3qP2B/BKN1pb1b/4nbB1/b3qk2 b - - 0 1 illegal: No proof kernel
2N1r1nn/b2k1B2/rNNn4/2R1p2K/rp4pp/6PP/QB2Qq2/1B1qq2R b - - 0 2 legal: proof: d4 c5 b4 cxd4 e3 dxe3 Be2 a5 Bf1 axb4 f3 b6 f4 e5 f5 Ba6 Bd2 Bc4 Bc1 Be6 fxe6 Qc8 Bb2 Qc7 Bc1 Qd8 Ke2 d5 Kf3 f5 c4 h5 a4 g5 h3 b5 a5 b3 c5 b4 a6 b2 g3 g4+ Ke2 f4 e7 f3+ Ke1 d4 c6 f2+ Ke2 h4 a7 Nd7 Nc3 b1N c7 Na3 c8N Nb5 Nd5 Qb6 Nf3 Nd6 Kd3 e2 Ra5 e1Q Qe2 Qc5 Bg2 f1R Bb2 Bh6 Rb5 Be3 Ndb6 Nf8 Ra5 Ng6 Rb5 Rb8 a8Q Rh6 Qa2 Nh8 Ra5 Ra8 Rb5 Ra4 Ra5 Ndf7 Ke4 d3 Nd4 d2 Nc6 d1Q Bf3 Bf2 Kf5 Nd6+ Kg5 Bd4 Bg2 Rf8 Be4 Bg1 Bb1 Qcf2 Rc5 Rhf6 Nc4 Kd7 Kh5 Re6 N8a7 Ra8 Nc8 R8a6 e8B+ Kc7 Bf7 Re8 Ra5 Kd7 Rd5 Qff1 Ra5 Ba7 Rc5 Qff2 N4b6+
4N3/1q4Bn/r1P2RB1/RR2pQ2/Nb2qrn1/2r1P1K1/pp1Qp3/qnN2k2 b - - 0 1 illegal: No proof kernel
K5R1/p7/1Q1nn3/b1p1Bk2/PpQq1q2/PN3Npr/1b1Nb1n1/1B1qR2R b - - 0 1 legal: proof: c4 e5 g4 b5 f4 exf4 g5 d5 g6 dxc4 Qb3 hxg6 Qa4 g5 Qd1 g4 a3 Rh3 a4 Ra3 bxa3 Na6 Nc3 Rb8 Nb1 Rb6 Qb3 Rh6 Qd1 Rh8 Kf2 Ke7 h4 Kf6 d4 g5 e4 f3 Ke3 f2 d5 c3 Kd4 c2 d6 Nh6 Kd5 Nf5 Kc6 Nc5 h5 Ba6 Bd2 c1B d7 Bb2 Be2 f1N Qc2 N1e3 h6 b4 h7 Bd6 Bf3 Be2 Qc4 Qf8 d8R Be7 Rb8 Bd8 e5+ Kg6 e6 Qh6 e7 Qh2 e8Q Nd6 Qee4+ f5 Qcd4 Ne6 Bc3 Qf2 Qed5 f4 Q5c4 Kf5 Ra8 Qe1 Nd2 Qb1 Nb3 Qc2 Bg2 f3 Rb8 f2 Re1 f1Q Rc8 Qd1 Qdc5+ Nd5 Be5 Ne3 Q5d4 Qf4 Qdc5 g3 Ra8 g4 Be4+ Kg5 Q5d4 g2 Bb1 g3 Nf3+ Kg4 Nfd2 g1Q Rb8 Nf7 Kb7 Ng2 Ka8 Nd6 Qf2 c6 Qfc5 Ba5 Qb6 c5 Rc8 Re8 h8N Qgd4 Nf7 Rh8 Ng5 Rh7 Ngf3 Rh3 Ne4 Kf5 Rg8 Bf1 Ned2+ Bd3 Ba2 Be2 Bb1+
3NBK2/7p/r1Q3pP/1Bp1q1br/R6b/1k2N1bb/pQ3NPn/Rb3Qr1 b - - 0 2 legal: proof: c4 e5 d4 b5 a4 Qh4 e4 Qd8 f4 Nc6 d5 Nd4 Be3 bxa4 f5 Ne6 Bd4 exd4 e5 d6 c5 dxc5 fxe6 c4 Kf2 Ke7 Kf3 f5 Kf4 c5 Kg5 a5 b4 g6 h4 f4 b5 a3 h5 a4 h6 d3 b6 f3 b7 f2 b8Q d2 Qh5 d1R Qf3 a2 Qh3 a3 Qb5 c3 Qb7+ Qc7 Ne2 c2 Qc3 c1B+ Qe3 Nf6 Qf4 Ra6 Ng3 Ng4 Qb2 Nh2 Bb5 f1B Nc3 Bd3 Nce4 Bb1 Nf2 Rg1 Nf1 Bg7 Ne3 Re8 Qc4 Bh8 Qf1 Bf6+ Kf4 Bh4 d6+ Kd8 d7 Ke7 d8N Qb8 Qd3 Rf8+ Ke4 Rf5 Kd5 Rh5 Qf1 Bg3 Nc2 Bg5 Ne3 Kf8 e7+ Kg8 e8B Bh3 e6 Qe5+ Kc4 Kf8 Qc3 Ke7 Qb2 Kd6 e7 Be4 Bf7 Bb1 e8Q Kc7 Qd7+ Kb6 Be8 Ka5 Qc6 Be4 Rd1 a1B Rd4 Bb1 Rg4 a2 Rf4 Qg7 Kd5 Qc3 Kd6 Qg7 Qb3 Baf6 Qb2 B5h4 Neg4 Bfg5 Ne3 Ng4 Ke6 Qe5+ Kf7 Nh2 Kf8 Be4 Qc2 Kb4 Rg4 Ka3 Qce2 Bf5 Ra4+ Kb3 Qc1 Rd1 Qa1 Rd2 Rc1 Rd1 Qd4 Bc2 Ra1 Rg1 Qf1 Bb1 Qb2+
BQ1R2q1/nbB1b2p/bRb5/1Q2KN2/1qNr1p1p/5pRP/b1P4r/1Q3k2 b - - 0 1 illegal: No proof kernel
1qbqB1Q1/1R2BKNr/qbpQ4/2R2N2/pq2p3/P1k5/1r2Pp1Q/1R3qn1 b - - 1 2 legal: proof: d4 g5 c4 b6 g4 Bg7 f4 gxf4 g5 Bf8 h3 Nc6 h4 Ne5 c5 bxc5 h5 Ng6 hxg6 cxd4 Bh3 d3 Bg2 Bb7 Bf1 Bc8 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 d5 b4 Kd7 b5 c6 b6 d2 b7 h4 b8Q h3 g7 f3 g6 d4 a3 f4 Qb4 h2 Qda4 d1Q Qbb5 f2 Kf5 Kd6+ Kg5 f3 Qb6 Ke5 Qc2 a4 Qd3 Qe1 Nc3 Rh7 Rb1 Nh6 g8R Ng4 g7 Rb8 Nd5 Qb4 Bh3 f1Q Kg6 Nf2 Bd7 Nh3 Nf6 f2 Be8 e6 Qd1 d3 Bg5 d2 Kf7 Bc5 Qc7+ Kd4 Nf3+ Kc3 Nh5 e5 Be7 e4 Nh4 Ng1 Nf5 Bb6 Rf8 Qd3 Qd6 Qa6 Rc1+ Kb2 Rc5 Rb7 Qe1 d1Q Qed2+ Kb3 Q2h6 Qdd4 Kg6 Kb2 g8Q Qh8 Rf7 Qd1 Qc7 Qd8 Qd6 Qe5 Nhg7 Kb3 Qdd2 Qb8 Qd6 Kb2 Rd5 Kc3 Ra5 Nh3 Rb1 h1Q Qhf4 Qf1 Qh2 Ng1 Re5 Ba7 Rd5 Rb5 Re5 Bb6 Rc5+ Qc4 Bf8 Rb2 Rb7 Rd2 Be7 Rb2 Rd5 Qb3 Kf7 Qb4 Rc5+
1K5b/3pn1q1/pNpRqk2/Q1r4B/Q2P2rQ/2qbq2q/RN1B1pPN/8 b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b6 b5 Nc6 a5 bxa5 b6 a4 Rh3 Nd4 Rh1 Nb5 cxb5 Bg7 Nc3 Bh6 Nb1 Bf8 Kf2 Ke7 Kf3 f5 d4 h5 e4 c6 b7 a3 b8Q a2 e5 h3 e6 h4 b6 h2 b7 h3 Bd2 Rh4 Qe5 Rg4 b8Q Bg7 Qdb3 Ba6 Qd1 Bd3 Qa4 Qf8 Qbb3 Bh8 Na3 Qg7 Qea5 Kf6 Nc4 Ne7 Nb6 a6 Be2 Re8 Nc4 Rb8 Nb2 Rb5 Qba3 Nd5 e7 Rc5 Rd1 a1Q e8N+ Ke6 Re1 Ne7 Nc7+ Kf6 Na8 Qc1 Nb6 Qc3 Kf2 f3 Ke3 f2 Nf3 f1Q Ra1 Qb1 Ra2 Qbc1 Re1 h1Q Nh2 f4+ Kf3 Bb5+ Ke4 Qg1 Bd1 Qc4 Qg3 Q1c3 Bb3 Qcg8 Bf7 Bc4 Bh5 f3+ Bf4 f2 Re2 Qgc1 Re1 Rg6 Bd2 Bd3+ Kf4 Qd5 Re5 Qdg8 Rd5 Qe6 Rd6 Rg4+ Kf3 Qe1 Nf1 h2 Rd5 Rg6 Kf4 h1Q Qh2 Be2 Qg3 Qhh3 Nh2 Qef7 Ke4 Qgf8 Kf4 Kg7+ Ke5 Rg4 Kd6 Qe6+ Kc7 Bd3 Kb7 Q1e3 Rd6 Kf6 Kc7 Qfh6 Kb8 Qg7 Qh4+
4r3/B3P1B1/1np1n1Kp/Q2n1ppN/3b1NP1/2krR3/qqB1qQ1R/1n2N3 b - - 0 1 legal: proof: f4 a5 c4 g5 b4 axb4 f5 d5 f6 dxc4 h4 Bf5 h5 Bg6 hxg6 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Kf5 Kd4 g4 b5 e4 h6 a4 b3 g7 c3 e5 b2 a5 c2 e6 f6 e7 f3 a6 c6 a7 b4 Kg6 f2 Na3 b1N Bb2+ Nc3 Nh3 c1Q Nf4 b3 Bd3 f1Q Qe1 f5 Bc2 Qe2 Rh2 Nf6 g8N Ne8 Nf6 Qa5 N6h5 Bg7 d3 Nc7 Qf2+ Qce3 Rah1 Ne6 Re1 Nd7 Ba1 Rae8 a8Q Qb4 Qa5 Qd2 Re2 b2 Re1 Nd5 Re2 Kc3 d4 Ndc7 d5 Nb6 d6 Ncd5 d7 Bd4 d8B Qe4 Re1 Qee2 Bc7 Rd8 Bb8 Rhe8 Ba7 Rd6 Be4 Qc2 Bd3 Qb1 Nc2 Qa2 Be4 Kb3 Bd3 b1N Bb2 Qba3 Bc3 Q3b2 Be4 Qd1 Re3 Qe2 Ne1 Kc4 Bb4 Rdd8 Bd6 Rd7 Be5 Rd6 Bg7 Rd7 Qa6+ Kb4 Bd3 Kc3 Qa5+ Nb4 Re5 Bc5 Bb5 Rd3 Ba4 Be3 Bc2 Bd4 Qa6 N4d5 Re3 Rg8 Qb5 Re8 Qa5+
bB1b3Q/2pKp3/2R3k1/P1R3NR/4N2q/3Bp1p1/2q1P1q1/bNrQnr1b b - - 0 1 illegal: Other
5BQb/3Br2b/1P1bn1pR/1NQ1B1qk/Kpp5/n1PR1q1b/p6q/N1R5 b - - 0 1 illegal: No possible last move
NKBQn3/P2p2pp/1NN2R1k/QpB1rq1P/R2B3n/1n6/3n1r1q/3r3b b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 g3 f5 Ba3 f3 Qc1 f2+ Kd2 f4 Qd1 f3 Bb2 Bd6 Bc1 Bf4+ gxf4 Ra5 Bh3 Ra3 Bf1 Ra8 Kd3 Kf8 Kc4 d3 Kd5 b6 Kd6 b3 h4 b2 c4 d2 a4 Qf6+ Kc7 Qf5 e4 Qf6 f5 Bb7 a5 Qh6 h5 Bd5 e5 Qf4 a6 Qe3 c5 Nh6 c6 Ng4 f6 Qa3 f7 Nf6 a7 Qa2 e6 Ke7 Qe1 d1R Ba6 f1Q Be3 b5 Na3 b1N Qa5 f2 Nf3 Nd2 Bc8 Rf8 Ne5 Nb3 Bd4 Ne8+ Kb7 Kf6 e7 Kg5 Nac4 Qd2 Ra4 Kh6 Nb6 Qf4 Rh3 Bh1 Rf3 Qh2 c7 Nc6 Rf4 Qd3 Rf5 f1N Rf3 Nb4 Nc6 Nfd2 Rf4 Nd5 Rf3 Rg8 f8B Nf4 Rf1 Ng2 Rf3 Nf6 e8Q Qf5 Bfc5 Rf8 Qd8 Ne8 Rf4 Qg6 Rf6 Nh4 Ka6 Rb8 Na8 Rf7 Bb7 Re7 c8N Re5 Ncb6 Rc8 Ne7 Rc7 Bc8 Rc6 Kb7 Rd6+ Rf3 Rf6 Kb8 Rf4 Nc6 Qf5 Rh3 Rf2 Rf3 Qe4 Rf8 Qf5 Rf6+
3B2bK/1PqN3Q/q1q5/1p1n1p2/B1nRBQp1/3n1r1p/1b1qQP2/R1N2k2 b - - 0 1 illegal: No proof kernel
1q1q1Bn1/3bp1P1/2rRnk2/1Np1r2n/4P1Kp/2qRQ3/NBp1B2Q/2N1n3 b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 f5 Ba3 a5 Bc1 axb4 h4 g5 Bh3 Bh6 Bg2 fxg4 Bf1 g3 Nc3 g4 Nb1 Bg5 hxg5 Kf7 Nh3 Kf8 Ng1 Ke8 f4 Kf7 a4 b5 e4 c5 Ke2 h5 d4 c3 f5 c2 a5 g2 f6 b3 a6 b4 d5 g3 Kf3 b2 a7 h4 d6 b3 d7 Na6 Ra3 Nc7 Nc3 b1Q Qd2 b2 Be2 Ne6 Kg4 Rh5 Qe3 Qa1 Na2 b1Q Rd3 Qc3 Bb2 Rb8 a8Q Rb6 Qb8 Rc6 Qd6 Kg6 f7 Kg7 g6 Re5 f8B+ Kf6 Nf3 g1N g7 g2 Nd4 Nh3 Nc1 g1N Nb5 Nf3 Rhd1 Nf4 Qc7 Qe8 d8N Ne1 Rd6 Nh5 R1d3 Bd7 Qb8 Ra6 Nc6 Qd8 Nb4 Rc6 Nba2 Qa1 Nb4 Qa7 Qc7 Qab8 Nba2 Rf5 R6d4 Rd5 Qh2 Re5 Rd6
1R6/ppR1p3/1NQPBrb1/q1N1pQk1/1b1r1q2/3n4/PQ2q2q/1K1BB2b b - - 0 1 legal: proof: e4 f5 b4 c5 g4 cxb4 e5 d6 Bg2 dxe5 Bh3 Na6 Bf1 Nb8 h3 g5 Ba6 Nd7 Bd3 Ndf6 Bc4 fxg4 Bf1 g3 h4 g4 Nf3 Ne4 Ng1 Ng5 hxg5 Qd6 Nc3 Qd7 Nb1 Qd8 f4 Kf7 c4 Kg6 d4 h5 Kd2 b3 f5+ Kf7 g6+ Kf6 g7 h4 d5 h3 d6 h2 c5 b2 Kc2 g2 c6 g3 c7 Be6 c8Q Bf7 Na3 Qa5 Qd4 Nh6 g8B Ng4 Be2 Nf2 Nh3 g1Q Kb1 g2 Nf4 Nd3 Nc4 Qd1 Qc6 g1Q Nb6 Rh4 Ne6 Bg6 Nc5 Bh6 Be6 Bd2 Qf2 Qde1 Bd1 Bb4 Bd2 Qe2 Be1 Kg5 f6 Rf8 f7 Qg3 Rf1 h1B Qh2 Qf4 Rf2 Rfh8 f8Q R8h6 Rf3 Rg4 Qf2 Rgh4 Qfc8 Qh2 Rf8 Rd4 Q8d7 Bh7 Rb8 Rf6 Qdc8 Bf5 Qf8 Bg6 Qf7 Qf4 Qh7 Qh2 Qh3 Qf4 Qf5+ Kh6 Qcf3 Qa4 Nb3 Qf1 Kc2 Qa5 Rc1 Qh2 Kb1 Qf4 Rc7 Qh3 Kc2 Qhh2 Q5h3+ Kg5 Qc6 Qfg3 Nc5 Qg4 Kb3 b1Q+ Qb2 Qc1 Qf1 Qe3 Qff2 Qge4 Kc2 Qe2+ Kb1 Qeh4 Qff3 Qg4 Qh3 Qgf4 Qf5+
n1n2Nqk/B6n/Qp1R1pPn/2p1rPNR/5K2/4QR2/3bBpN1/n5nb b - - 0 1 illegal: No proof kernel
bb6/n1p1PB2/1R1B3n/bR2p1qr/1nP2p2/Q6B/1pQ3Nk/1b1nNKQ1 b - - 0 1 legal: proof: f4 d5 h4 e5 e4 b5 b4 a5 h5 axb4 h6 Ra6 f5 dxe4 Bc4 Re6 fxe6 gxh6 Bd3 h5 Bf1 h4 g4 Ke7 d4 Kf6 c4 h5 a4 b3 g5+ Kf5 a5 b4 a6 e3 d5 Kf4 g6 Kg3 g7 f5 d6 h3 d7 b2 a7 b3 a8Q e2 Nc3 b1B Bb2 h2 Qc6 f4 Qa4 h4 Na2 h3 Qa5 Bb7 Qc2 Nc6 Nc1 Na7 Ba3 b2 Bd6 Ba8 Nd3 Qg5 d8Q Rh5 Qa3 Nh6 g8B Be7 Bf7 Bf8 Bb4 Bc5 e7 Bb6 Nf3 Ba5 Kd2 e1B+ Ke2 Bf2 Nh4 Bc5 Bg2 Bcb6 Rd1 h1N Qg8 h2 Bh3 Nf2 Bd6 h1N Kf1 Kh2 Ng2 Bd4 Rd2 Nd1 Nde1 Nhf2 Qgg6 Bdb6 Rd5 Nd3 Rb5 Nb4 Qg8 Qf6 Qg4 Qg5 Qgg3+ Kh1 Qgf2 Kh2 Ra2 Be3 Qg1+ Kg3 Qca4 Nc8 Qf2+ Kh2 Qac2 Ba7 Qac3 B5b6 Ra6 Ba5 Qa3 Bb8 Rab6 Na7 Qg1#
4q3/1Nr1kR2/n2pP1Rp/rQ1QnQBK/B2B4/1Npb4/1pn1r2P/r2n4 b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 Bb2 axb4 Bc1 f5 c3 fxg4 Qc2 b5 Qd1 b3 Ba3 b4 Bc1 b2 Qc2 b3 Qd1 Bb4 cxb4 Qg5 Bd2 Qh4 Bc1 Qd8 f4 g5 Kf2 c5 Kg3 h6 a4 d3 e4 c4 e5 d6 b5 d2 a5 c3 a6 Qc7 f5 Qe7 f6 Bb7 f7+ Kd8 f8B Bg2 e6 Bd5 b6 Bg2 a7 Be4 b7 Na6 Na3 b1N Bb5 b2 Nc4 Rh7 Ne2 Nf6 Nd4 Bd3 Bg7 Na3 Ba4 Nd7 Qf3 d1N Na5 Qe8 b8Q+ Ke7 Rf1 Nc2 Nb7 Ne5 Bh8 Rf7 Nb3 Rh7 Qf5 Rg7 Kg2 g3 Kh3 g4+ Kh4 g2 Rg1 Rf7 Kh5 g3 Rf1 g1R Bg5+ Kf8 Rf4 g2 Bhf6 Re1 Rc1 Nc6 Bd4 g1R Rf2 Re2 Rg2 Nde3 Rf1 Ne5 Rf3 Ra1 Rg4 Nd1 Rg1 Kg8 Rf2 Qf8 Qe8 Kg7 Qb5 Qe8 Rff1 Kf8 Rg3 Rc8 a8Q Rc7 Rf2 Nb8 Qaa5 Na6 Qd5 Rc5 Qb5 Rc7 Bc1 Ke7 Rg6 Rf8 Bg5+ Rf6 Qfe4 Nc4 Qbc6 Rc1 Qa5 Ra1 Qg4 Re5 Qce4 Rb5 Qd5 Ne5 Qb4 Ra5 Qbb5 Kf8 Rf1 Rf2 Qgf3+ Nf7 Qfe4 Re2 Rff6 Ke7 Qef5 Ne5 Rf7#
N3K2B/3n2Np/b4rp1/2kQ1RP1/p1n2N1r/5pnR/nnBP3n/1Rb2Q2 b - - 0 1 illegal: No possible last move, all moves rejected
3r1R1N/3Qp3/br2rN2/pn1K4/1bpnPR1b/2BB1rNk/P3bp2/4QR2 b - - 0 2 legal: proof: d4 h5 g4 hxg4 c4 b6 c5 bxc5 Bg2 cxd4 Bf1 d3 f4 g5 Kd2 g3 Nf3 c6 Ke1 g4 Ng1 Qb6 Bg2 Qb5 Bf1 Qg5 fxg5 Bg7 Nd2 Bh6 Nb1 Bf8 Kd2 a5 Ke3 f5 Kd4 Kf7 h4 Ke6 b4 d5 h5 d2 h6 g2 g6 f4 h7 Kf5 g7 f3 e3 g3 e4+ Kg4 b5 c5+ Ke5 d4 b6 c4 b7 d3 Rh5 Nc6+ Kd5 Nf6+ Kc5 Nd4 g8R+ Bg7 b8Q Ne8 Nh3 g1R Qb7 g2 Rh6 Rb8 Qb2 Rb6 Re6 Nd6 Qe2 d1R Nd2 Ba6 Kd5 N6b5 Rf8 Bf6 Qe1 Bh4 Nf4 f2 Nh5 Kh3 Rf4 Rf8 h8N Rh1 Be2 g1B Nf6 Bh2 Nf1 d2 Bd3 Rg1 Qc2 Rg6 Bb2 Rf7 Bc3 B2g3 Rf5 Bd6 Qa4 Bb4 Ng3 Rf8 Rd6 Rd8 Rf3 Rc1 Rf4 d1B Rd7 Be2 Qad1 Rb1 Rd6 Rb3 Rd7 Rdb8 Rd8 Rh6 Rf8 Rd8+ Nd7 Rhe6 Rc1 Nd6 Nf6 Ra3 Qa4 Rb3 Qe8 N6b5+ Qd7 Ba3 Bb4 Nf3 Bb1 Rc6 Qd2 Nfd4 Rf1 Rb6 Qe1 Rf3 Bc3 Bb4 Bd3
2RQKBQ1/8/pnBp1Rp1/1r1p1q1P/P1b1b2N/p3N2N/n1r1b3/1r2k2B b - - 0 1 illegal: No proof kernel
1N3KQ1/N4nPq/kp2p3/r1B1r3/b2p1pB1/b1p4Q/2nrR1P1/1R1Q1Bb1 b - - 0 1 illegal: No proof kernel
QB1brN2/N4pn1/3RrP1R/p2r3n/3qPp2/b7/1NB3pp/1K1B1nkQ b - - 0 1 illegal: No possible last move
3NRb1Q/2pB2pp/nN2p3/4p3/Pkn3NK/r5nQ/P6B/b1BbR1rq b - - 0 1 illegal: No proof kernel
1rQ2q1b/1ppP1p1N/nR4Bk/1rr3pp/2P1b3/Q2N3R/1BKn2b1/3Q3N b - - 0 1 illegal: No proof kernel
8/p1r1R3/P1bn2KB/p1qprR1N/1b1Qp2N/Bn4pk/3P1B2/r2QR2b b - - 0 1 legal: proof: e4 h5 b4 f5 exf5 Nc6 a4 Nd4 g4 hxg4 a5 Nc6 b5 Nb8 a6 Rh7 Qf3 Rh8 Qa3 b6 Qa5 bxa5 b6 c6 Bb5 cxb5 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 f4+ Kh4 c4 g5 c5 e5 c6 g3 c7 d6 f6 g2 b7 b4 f5 g4 f7 b3 f6 b2 Nc3 Nd7 Kf5 b1B+ Ne4 d5 b8B Ba2 Ba3 Bg7 f8R Nh6+ Kg6 Nf7 Ng3 Rh5 Nf3+ Kh3 Rhe1 g1R Nh4 Nd6 f7 Bb7 c8Q Qb6 Qc2 Nc5 Qd1 Nb3 Bc7 Qf2 Bb6 Qc5 Rb1 Rh7 Nh5 g3 Re8 e4 f8B Bc3 Re7 Bb4 Bh6 Bc6 Rf1 Re8 Rf5 Qc1 Bf2 Qc5 Qf3 Rf1 Re1 Bb1 Qe2 Bd3 Qd1 Be2 Rd7 Kg4 Bhe3 Kh3 Nf6 Bc4 Qc2 Rhe7 Rc1 Bb7 Be1 Rg1 Nf3 Kg2 h4 Re6 B1f2 Bc8 Re7 Kh3 Ra1 Be2 Qb1 Re5 h5 Bb7 h6 Nf7 Nh4 Nd6 Nh5 Rc8 Bg5 Bf3 h7 Bc6 h8Q Bh1 Qf6 Rc7 Bh6 Re6 Qc2 Re1 Rc1 Re3 Rg1 Re1 Qb1 Rc1 Re1 Rd1 Qc2 Rc1 Qd1 Ra1 Re8 Ree7 Qd4 Re5 Re7
2B1rb1q/1r3RN1/1Qqq1p1p/Np1k3b/1p4nR/B6P/3QNpP1/K1B4n b - - 0 1 legal: proof: d4 a5 c4 e5 f4 d5 b4 axb4 f5 exd4 cxd5 g6 Bf4 gxf5 Bc1 f4 Kd2 Kd7 Kc2 Kd6 Kb2 c5 e4 f6 a4 d3 a5 f3 a6 f2 a7 h6 Na3 b6 Ne2 Nd7 Qd2 Rb8 a8Q Ne7 Qb7 Nf5 Qa6 Ke5 d6 Ng3 Nc4+ Ke6 e5 Rb7 Qa7 Kd5 e6 Ne5 d7 Ng4 e7 Qe8 d8B Bd7 Qd1 d2 Na5 Bc6 Qe1 d1Q Ra3 Ba4 Ka1 Qd4+ Rc3 Bd1 Qd2 Qc6 e8N c4 Bc7 Qd3 Ba3 b5 Qb6 Qd4 Bf4 Qd3 Rc1 c3 Ng7 c2 Nd4 Qh7 Bd3 Be2 Bf5 Qd6 Bc8 Rg8 Rcd1 Qh8 Rde1 Bd1 Re7 Bf3 Rf7 c1Q+ Ka2 Qcc6 Ka1 Be4 Be3 Bg6 Bg5 Bh5 Ne2+ Ke5 h3 Ke4 Rc1 Nh1 Rc4+ Ke5 Qa2 Kd5 Bgc1 Be7 Qb2 Re8 Rf4 Bf8 Rc4 Ne5 Rh4 Ng4 Qd2+
2B1Bq1R/6P1/kQpN2b1/1rp4p/K1Npr3/1QP1nqb1/BRpb4/Nn6 b - - 0 1 illegal: No possible last move
KN1R2b1/3p2qp/k7/1pnrBQ2/1R3p1P/P2B1b1n/pB1qr3/NR1b1Q2 b - - 0 1 illegal: No proof kernel
R7/1QnppBp1/4r3/Nk1PnR2/3qPq2/b3rbNQ/p2Bp1Q1/3BKb2 b - - 0 1 illegal: No proof kernel forced: wxDB
r2n1rQ1/2pn4/3kb3/RPNpBB1q/1K4Bp/p5Qq/pR1P3N/b4N1r b - - 0 1 illegal: No possible last move, all moves rejected
2B1bN2/1bp5/N1Nq2Q1/Pk3KB1/1Qp2p1b/R1qp1r1p/1Q2P1n1/5nRr b - - 0 1 illegal: No possible last move, all moves rejected
2Rr1BB1/2pb1kq1/1bNpnp2/1q5N/B1b1P1QR/pr5Q/4P2p/n2K2R1 b - - 0 1 illegal: No proof kernel
1b1Qq1Rn/6b1/8/1N1Kp1br/PB2pkb1/p3p1P1/pQN1r1n1/Q1B3RB b - - 0 1 illegal: No possible last move, all moves rejected
1R1QQrbn/4Q1p1/pr2RB1P/nN3k2/2p1B3/5n1p/q2b1PNp/3B1K1n b - - 0 1 illegal: No proof kernel
Q3nR2/2RB3Q/Nq2r3/2pq4/5Pqp/1p1pkNrP/1N3p1b/K1Br1nB1 b - - 0 1 illegal: No proof kernel
k1B2bN1/5Q1Q/3pNn1p/1R2r2q/2R1b1p1/2qPb1Pp/n3Kp2/1n1RB2N b - - 0 2 illegal: No proof kernel
1B1b4/q1Nb4/1q3p1b/1RR2N1K/rr1pNp2/2pPQBQ1/nPrp4/k3B3 b - - 0 1 illegal: No proof kernel
b1K1b3/1B3p1n/1N1p4/2Rqn1Np/1bN1p1Q1/2pPqqQ1/1r2P3/3BB1Rk b - - 0 2 legal: proof: c4 g5 f4 gxf4 h4 b5 g4 a6 g5 Ra7 b4 bxc4 b5 axb5 h5 c3 Rh2 Ra6 Rh1 Rg6 hxg6 Ba6 Ba3 Bb7 Bc1 Bc8 Kf2 e5 Kf3 Ke7 Ke4 Ke6 a4 h5 g7 c5 a5 c4 g6 c2 a6 b4 a7 f3 a8N f2 Bg2 f1Q Qe1 b3 Qg3 c3 Na3 b2 Rh2 b1B Nc4 Nc6 Nh3 Bb4 Ra5 d6 Bf3 Qg5 Nab6 Bd7 Rc5 Be8 Rg2 Kf6 Kd5 Kf5 d3 Ba2 Bd2 c1Q Be1 Qge3 Ng5 Bb3 Qh3+ Kf4 Bg4 Qa1 Bd7 Qa5 Be6 Nh6 g8Q e4 g7 Ne5 Bd7 Qa2 Ba4 Nhg4 Qh4 Qff3 Qh3 Nd7 Kc6 Ndf6+ Kb7 Ne5 Kc8 Nh7 Qg3+ Kf5 Nd2 Bd5 Bd1 Ba8 Ndc4 Qb3 Qf8 Qa2 g8B Qa5 Qg7 Qb5 Rc6 Qd5 Rc5 Nf8 Qh3+ Kf4 Bh7 Rg8 Bf5 Nh7 Bd7 Rh8 Bc6 Rf8 Qd7 Rh8 Rf2 Kg3 Bb7 Rg8 Rf1+ Kg2 Rg1+ Kh2 Rg2+ Kh1 Qg4 Bc6+ Kc7 Rb8 Qg3 Be8 Qg6 Rd8 Qe6 Rd7+ Kc8 Re7 Qeg4 Rd7 Ba6 Ra7 Bb7 Ra2 Q4f4 Rc2 Qfg4 Rb2 Rg1+
Q1k5/B1R1rR1K/R5NN/1pb2n1N/1P1p2bp/rp2qpQB/3P4/4qbr1 b - - 0 2 illegal: No possible last move
1B4NQ/b1ppR1p1/qk1Nnq1Q/pP2n3/bR3qrR/3P1B1p/2n2K2/5Q2 b - - 0 1 illegal: No proof kernel
1n1B1B1Q/1r1Bbk1p/prbp3p/1RN2r2/8/1QP2p1K/1Q3Pnn/2b2NR1 b - - 0 1 legal: proof: e4 b5 a4 bxa4 h4 d6 h5 Kd7 h6 gxh6 e5 c5 d4 Kc6 e6 Qd7 exd7 cxd4 d8B Kd7 g4 Ke6 b4 f5 g5 f4 g6 f3 b5 a3 c3 a2 b6 d3 b7 a6 g7 Bd7 Bf4 Bc6 Nh3 Kf7 Rg1 e5 Nd2 e4 Be5 e3 Nf4 e2 Bh3 Be7 Bd7 Ra7 Rb1 a1B Nf1 Nf6 Ne6 Bb2 Nc5 Bc1 Rb5 Ng4 Bd4 Rf8 Qb3+ Kg6 Qb2 Rf5 Bf6 Kf7 Bh4 Bf6 Be7 Nh2 Bf8 Be5 Bd8 Bf6 Qa3 Be7 g8Q+ Kf6 Qh8+ Kf7 Rg5 Bb2 Kd2 e1N Ke3 d2 Rg1 d1R Qb4 Rb1 Qb3+ Rd5 Kf4 Bc1+ Kg3 Ng2 Qb2 Re5 Kh3 Rf5 Bc8 Nd7 b8Q Rb7 Qa7 Nb8 Qb6 Ra1 Bd7 Ra3 Qa5 Rb3 Qa4 Rb4 Ra5 R4b6 Rb5 Ne1 Qab4 Ng2 Q4b3+
Br3B1b/2rbp3/1QBk4/2p1N3/4r1q1/1bK2Pnp/bpPRN1Qp/3R3R b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 axb4 e5 c5 d5 Nc6 e6 fxe6 dxc6 e5 Rh2 e4 Rh3 Qc7 Rh1 Qd8 Kd2 h5 a4 b5 g4 d5 f3 e3+ Kd3 e2 a5 e1R g5 d4 c7 Kd7 a6 b3 a7 h3 g6 b4 g7 h4 Qd2 h2 Qg2 h3 Bf4 b2 Kc4 b3 Ra5 d3 Bg3 d2 Qf2 d1B Nd2 b1B Ra1 b2 Qg2 Nh6 g8R Re4+ Kc3 Bg7+ Be5 Nf5 Ne2 Ng3 Nc4 Rb8 a8B Ba2 Bd4 Rb7 Ne5+ Kd6 Rc1 Bd7 c8Q Ra7 Qb7 Qc8 Rd8 Bb3 Qb4 Rc7 Be3 Re8 Bh6 Bh8 Bf8 Ba2 Nf4 Bb3 Bb5 Be2 Bbc6 Bec4 Qb6 Ba2 Ne2 Bcb3 Bg7 Qa6 Bf8 Qc4+ Kd2 Qg8 Kc3 Qg4 Rcd1+ Bd5 Rb8 Rec8 Rb7 Rb8 Ra7 Bb3 Raa1 Ba2 Rd2 Bb3 Rad1 Ba2 Kd3 Bdb3 Kc3+
1KRq1R1b/pN1pn1n1/bB6/4k2P/BR2p1pp/rqn3B1/4Q1NP/4n1Q1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 e5 h5 e6 h4 Ke2 Na6 Nf3 Rb8 Kd2 Rb5 Ke1 Rbh5 gxh5 fxe6 Ng1 e5 Bg2 e4 Bh3 Qb6 Bf1 Qd8 Ke2 Kf7 c4 Ke6 f4 g5 b4 e3 Kf3 e2 Ke4 e1N b5 g4 c5 a3 f5+ Kf6 Kd5 e5 b6 d3 b7 e4 b8B d2 c6 a2 c7 Qe7 Nc3 Nc5 Nb5 Na6 Nf3 Qe8 Qe2 d1N Nd6 Qg6 Nb7 Be7 Be3 Nb2 Bb6 Qe8 Rb1 Nd1 Rb4 a1Q Rg1 Bd8 Kd6 Qa2 Rg2 Rh6 Rf2 Ng2 Ne1 Qb3 Rf4 Nc5 Rf3 Nc3 Rf4 Ne3 Ng2 Ne7 Rf2 Nc2 Rf3 Kg5+ f6 Ne6 f7 Ne1 f8Q Ng7+ Rf6 Rg6 Qf7 Qf8 Qfc4 Qh8 Qd4 Rh6 Qg1 Qe8 Nc5 Ba6 c8R Qeg8 Nb7 Bc7+ Kc5 Qd8 Rf8 Be5 B8c7 Bf6 Bg3 Kf5 Kd6 Rg6 Qd2 Rg5 Bb5 Rg6 Ba4 Rg5 Rg8 Bd4 Qe2 Kf6 Re8 Ra5 Bb5 Ra2 Ba4 Ra3 Rh8 Qdg8 Kc7 Qd8+ Kb8 Ke6 Bf2 Bf6 Rf8 Ke5 Ka8 Ne8 Kb8 Bh8 Nd6 Ng7 Bg3+ Ke6 Nb7 Kd5 Nf4+ Ke5 Ng2+
1RK3RQ/5bp1/1bPBBr1p/Rb1pn1Pk/2bB1p2/1q1p2Q1/3r2N1/2N2q2 b - - 0 1 illegal: No proof kernel
NQ2kB1B/2rn3p/1p2qR2/p1P3N1/2p1NrBR/1nq2p1P/1n3n1b/4QK2 b - - 0 1 illegal: No proof kernel
6N1/rN1n3P/1n2R2p/r4pQP/4br1p/1p1R1pnB/r1N2Q2/b2KBkB1 b - - 0 1 illegal: No possible last move
bN6/P1p1b2B/1n3k1B/6bN/3R3n/pRKp2pr/1P1prpRN/2Q2Qq1 b - - 0 1 illegal: No proof kernel
KnB4q/pNQQ2n1/1R6/3b1p1R/b3R2r/ppBk1PB1/p2P3p/1r2Nq2 b - - 0 1 illegal: Other
3Qqb1r/1Pn1R2p/2pp2q1/2Q1N3/4BR1P/n2bpp2/1BpR4/nk1N1B1K b - - 0 1 illegal: No proof kernel
R1bBQ1Qb/p1NNbp1p/q2k2RK/3rBB2/1p1PrP2/4R1p1/n1p5/1q6 b - - 0 1 illegal: No proof kernel
4n1Bk/r1Q3R1/Q1nb2n1/qq2rp2/pp6/4R1pN/p1Pp1P2/B1BRN2K b - - 0 1 illegal: No proof kernel
1K1BNBb1/PpN5/2p1pqp1/1n1R2QN/2Qp3b/rB2rq2/3pPR2/k5q1 b - - 0 1 illegal: No proof kernel
N1N1B2q/2pR4/2rB1Npp/2bPnpk1/p7/2pn1QKB/1rP5/3rQr1R b - - 0 1 illegal: No proof kernel
2q2BB1/2p4n/2pnkp1p/Q1P1r1b1/pNNQ3P/p2n4/1nKN2b1/1RQR4 b - - 0 2 legal: proof: e4 a5 d4 g5 f4 gxf4 e5 Ra6 d5 Rd6 exd6 b5 a4 bxa4 Bb5 Bb7 Bc6 dxc6 Qg4 Ba6 Qd1 Bc8 Kd2 Kd7 g4 e5 c4 h6 h4 f3 b4 e4 g5 e3+ Kc2 f6 b5 f2 b6 f1N g6 e2 g7 Qe8 b7 Ne7 Na3 Nf5 Nf3 Nd2 Rb1 Be7 c5 Nc4 Bf4 Nb2 Nc4 a3 Qc1 a4 Nfd2 Qd8 Bg3 Re8 Rd1 Bf8 Bf4 Re5 Bg3 Ke8 d7+ Ke7 d6+ Ke6 Bh2 Qe8 d8Q Nd7 b8N e1N+ Kc3 Ned3 Kc2 Be7 Na6 Nf8 d7 Nd6 Nb4 Nh7 Bg3 Ba6 Qa8 Qc8 d8Q Bb5 Qa5 Bf8 Ne3 Bc4 Bh2 Bd5 Nec4 Bg2 Bf4 Nb5 Qd4 Bd6 Bg5 Rf5 Be3 Bf4 Bf2 Rd5 Bg3 Bg5 Bd6 Re5 Bf8 Nd6 g8B+
4Q1r1/K2pB2Q/B3pppk/2N4B/2n1rr2/1P2RPRq/p3nb1p/3rRN2 b - - 0 1 illegal: No proof kernel
6B1/2B1P2Q/3NKQ1N/n1pp1p2/q3RppR/kn3ppr/2N2P1b/r2q1Q2 b - - 0 1 illegal: Other
1kq4q/qqqQnN1B/1N2B3/N5Kn/2b1p3/3pR2R/q2PPr1b/3QbrB1 b - - 0 1 illegal: No proof kernel
b2K4/b3B2p/rk1pQn2/qnNP4/2nQnB1P/1bN1n3/4q3/n2QRrRB b - - 0 1 illegal: No proof kernel
1b5r/R1n2np1/1b3kPN/3qbQ1n/1KR1Bb1B/1p1N1bq1/1P2rQ2/3BR1n1 b - - 0 1 illegal: No possible last move
R1r5/2Br1R2/1Qn1BN1q/4p1p1/2n2nP1/b1R1P2Q/b2bnKNk/Bqn2b2 b - - 0 1 illegal: No proof kernel
3nBQK1/Nnp1Rn2/1r2Rr2/B1P1q2q/q1N2k2/2b1qB1p/4n1bP/qQ2R3 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 a4 b5 c4 e5+ Ke3 h5 f4 h4 d4 b3 f5 b2 f6 b4 d5 b3 f7 h3 a5 g3 a6 g4 a7 g2 Be2 g3 Bd3 Nc6 Qc2 Bb7 Na3 b1Q Qd2 b2 Be2 Qa2 Bd3 b1Q Qb2 Nh6 Qb3 Qe8 Nc2 Qa4 Nb4 Bg7 f8R Qh5 Rf7 Nd8 Nc6 Rf8 Qd1 Rb8 Re7 Nhf7 Nf3 g1N a8B g2 Nd2 Ne2 Re1 Qba2 Rb1 Qa1 Na7 Bc6 Bb2 Rb6 Bc3 Bb7 Ba5 Bh8 Rf1 g1Q+ Rf2 Qg7 Qb3 Qf6 Re1 Bg7 Qb1 Qe6 Rf6 Bc6 Kf2 e3+ Kf1 Bh8 Bg6 e4 Bb7 Ke5 d6 Bg7 d7 Bd5 Re8 Qe7 Re6+ Kf4 Bc6 Qeg5 R8e7 Bc3 Bb7 Qe5 c5 Nd6 Bc6 Rf6 Nc4 N6b7 Be8 Ng3+ Kg1 e2 Kf2 e3+ Kg1 Bg2 Bf3 Ne4 Nb2 Ng5 Nc4 Nc6 d8Q Nf7 Rc1 e1N Qb8 e2 Kf2 Nc2 Re1 Kf5 Qc8 Qe3+ Kg3 Ncd8 Qa8 Qg6+ Kh4 Kf4 Qb8 Nd4 Qa8 Qgc2 Kh5 Qd1 Rf1 e1Q Rh1 Qe1d2 Re1 Ne2 Qb8 Qdb2 Qa8 Rf5+ Kg6 Rf6+ Kh7 Qd5 Kg8 Qh5 Bd7 Bb4 Qb8 Qbe5 Be8 Bc3 Bb5 Nc6 Qf8 Ncd8 Be8
r2B1qB1/2rb2N1/pBnbb2K/1pQNqR2/Pnq1bR2/8/1P1b2k1/2qQ3Q b - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 g5 cxd4 g6 hxg6 Bd2 g5 Bc1 g4 Kf2 Ke7 a4 Kd6 e4 Ke5 c4 b5 h4 d5 h5 g5 h6 f5 h7 g3+ Kf3 g4+ Kg2 a6 c5 d3 c6 d2 c7 d4 Qc2 d1B Na3 d3 Qd2 Qe7 Rb1 Bb3 Qc2 d2 Ne2 d1B Nc3 f3+ Kg1 f2+ Kg2 f4 Qd2 Nf6 Nc2 Bd7 c8Q Nd5 Qc5 Nc6 Ne3 Bdc2 Bc4 Bd3 Rh4 f3+ Kh1 Kf4 e5 g2+ Kh2 f1Q e6 f2 Qd1 Qf6 e7 Qe5 e8Q Ndb4 Bg8 Bbe6 Qh5 Be4 Bd2 Qe2 Nf5+ Kf3+ Bf4 f1Q Nd5 Ra7 Ng7 Bd6 Ra1 Qf2 Qh1 Rc7 Rf1 Qc4 Bg3 Ke2 Bf4 Qf3 Bg3 Qff6 Rf5 Qf8 Bf4 g1B+ Kg3 Qed4 Be5 Be3 Bf4 Bd2 Be5 Bc3 Kf4 Kf2 Qd1 g3 Kg5+ Kg2 Kh6 Be1 Bf6 Bd2+ Rhf4 Qe5 Qhf3+ Kh3 Qff1+ g2 Qh1+ Kg3 Bd8 g1Q Qc2 Qc1 Qcd1 Qe7 Bf7 Rf8 h8B Re8 Bg8 Qf8 Bg5 Ra8 Bd8 Qe7 Ne8 Qf7 Bhf6 Qf8+ Ng7 Rca7 Bb6 Rc7 Qhf1 Kh2 Bd8 Kg3 Qfe1+ Kg2 Qh1+
b3N3/1np4b/K1RBq1kq/2rB2pr/1Q2BbPN/1b3qR1/n1P2b2/Q4Rq1 b - - 0 1 illegal: No proof kernel
5qq1/1B3pQR/nbp2K2/2NqR2r/rnP2nb1/5PR1/NBQ2B2/1q3kqn b - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 c4 b5 g4 c6 a4 b3 g5 e3 g6 b4 d3 e2 a5 e1Q+ Qe2 h3 g7 h2 a6 h4 a7 h3 Bg5 b2 Nf3 b3 Ra2 Nf6 g8Q Nh5 Bc1 Na6 Qg3 Nf4 Qe4 Qb4 Qg5 Rh5 Nc3 b1Q Nd4 b2 Ra3 Bg4 Na2 Bh6 Qe2 Qg8 Qc2 e6 Kf6+ e5 Qg6 e4 Qg7 e3 f3 e2 Ra5+ Qb5 Rg1 e1N Rg3 h1Q Be3 h2 Bh3 Qg1 Bf2 h1N Ne6+ Kd6 d4 Qd5 Rb5 Ned3 Nc5 Ndb4 Ra5 Qbe1 Rb5 b1Q Ra5 Rd8 a8R Qee8 Rb8 Qef8 Rbb5 Qe4 d5 Ra8 Rb8 Ne2 Re8 Be3 Re5 Nf4 Rb5 Nc7 Rb8 Ra4 Rc8 Nca6 Ra8 Kc7 d6+ Kb6 d7 Qd5 d8B+ Nc7 Be7 Nca6 Bf1 Bd4 Bd3 Be3 Bf5 Ka5 Bc8 Bd4 Ne6 Bb6 Bb7 Nbd3 Nc7 Qh8 Nb5 Qb8 Nd6 Qhe8 Nc3 Kb4 Nde4+ Qbd6+ Re6 Qh8 Rd8 Qh7 Rh8 Qg8 Rh7 Q6c5 Qd2 Kb3 Bd6 Kb4 Bc7 Qcf8 Be5 Kb3 Na2 Ndb4 Qe3+ Kc2 Qc1+ Kd3 Bb2 Ke2 Qc2+ Kf1 Nc5 Ba7 Re2 Bb6 Re5
2rnB2r/BbRnbR1k/2bQ1R2/6qq/p1q3p1/P1n1N1n1/3N1KP1/qN2Q3 b - - 0 1 illegal: No proof kernel
N5rB/5Br1/2qqb2n/R1p1n1QN/1br1pKQ1/3bP2b/rnP1R2B/5R1k b - - 0 1 illegal: No proof kernel
bk2R1Nn/1p1qQ3/1rB1Q1QN/3qBnn1/q2p4/1P2rb1R/b1KP1n2/4b2N b - - 0 1 illegal: Other
1B1Nbq2/bkqr4/p1p1r1bR/n1Q1pq2/4Bn2/P1P2N1R/5n1r/1K2QQR1 b - - 0 1 illegal: No proof kernel
2Q1R1b1/2rp2Nn/1n1qR2q/pK1B2Qq/3bp1B1/b2nBr1N/PQ1P3r/7k b - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 g5 c5 gxh4 c6 bxc6 Na3 c5 Nb1 c4 Ke2 Kf7 b4 Ke6 f4 Kd5 g4 c5 f5 e5 f6 h5 f7 a5 g5 h3 b5 c3 b6 h4 g6 e3 Kd3 h2 b7 e2 g7 e1B Qa4 c2 Qb5 h3 Qa6 c4+ Kc3 Ke4 Qe6 Bf2 Nf3 Qc7 Qe8 Nc6 b8Q Na7 Bg2 Ba3 f8Q Nf6 g8B Qd6 Rf1 h1Q Qb3 h2 Qfe7 Ba6 Qb6 Nc8 Bb2 c1N Be6 Nd3 Bg4 Nh7 Qg5 Bg1 Qb4 Nb6 Re1+ Be3 Qeg8 Rf8 Nd4+ Rf3 Nf5 Bb7 Q8d8 Bd5 Qc8 Bg8 Re2 Qd1 Ng7 h1Q Qb3 Qhh6 Qb5 Bc5 Ba3 Qdh1 Qb2 Q1h5 Bh1 Qdf6 Re1 Bf8 Bc5 Qd6 Na3 Be7 Nb5 Bf8 Nc7 Be7 Kc2 c3 Nce6 Bf8 Kb3 c2 Ka3 c1R Nf4 Rc4 Nh3 Rc2 Bb4 Rc7 Rac1 Be7 Rc6 Bf8 Bc5 Be7 Rd1 Bd4 Re1+ Kd5 Rf1 Qdf6 Bd6 Ke4 Ne6 Nf8 Qh4 Qhf7 Rc5 Qhg7 Qb1 Rh6 Qb2 Nh7 Rc2 Rh5 Rg1 Qgh6 Nhf4 Bf8 Qg5 Rh2 Rgc1 Qfh5 Rc6 Be7 Rg1 Qff8 Rg2 Rg3 Ng7 Nc4+ Ka4 Nb6+ Kb5 Qff6 Nh3 Qf4 Be6 Kf3 Bf5 Rb7 Bc7 Ba3 Bd6 Rc7 Re2+ Rgg2 Bg4+ Kg3 Qa8 Rf2 Bd5 Rf3 Qc8 Qf8 Re4 Kg2 Re2+ Kh1 Be7 Bc3 Bc5 Qe7 Bf2 Bd4 Re4 Qef6 Be3 Qe7 Rf6 Qd6 Rf8 Rg2 Re8 Rh2 Rf4 e4 Rf6 Be6 Rg6 Bg8 Rge6
n1n1N1Q1/1rq5/p3KQR1/P2Qp3/1b1BP3/2p2B1r/Nb1rR3/1Nrbkn1r b - - 0 1 illegal: No proof kernel
bn1knQ2/1r1p1N2/nRn1q1b1/2B1R3/QpBr3b/1P2K3/R1rP1N1p/3Qn3 b - - 0 1 illegal: No proof kernel
2NQ2r1/1qp1Q2K/1R3p2/BnP1q3/b1R3p1/1Rbr1P1b/1n2B1kq/b2QNb2 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 axb6 Bh3 b5 Bf1 b4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 b5 h4 e3 c4+ Ke4 a4 g3 d4 g2 h5 e2 d5 e1Q c5 b3 h6 e5+ Kh5 g5 h7 b4 d6 b2 a5 b3 d7 Nh6 a6 Rg8 h8Q Ng4 a7 Ne3 Qh6 Bg7 Qe6 Nc4 Qh3 Nc6 Qg3 Nd4 Ra4 Nb5 Nf3 g1Q Qg2 Qh2+ Qh3 Qe7 d8R Qb4 Na3 b1B Qd7 b2 Nh4 Bc2 Nf5 b1B Qh4+ Kf3 Bd2 e4 Be2+ Kg2 f3 e3 Nd6 Ba1 Kh6 Qee5 Re1 Bb3 Nc2 Nb2 Kh7 f6 Qe7 Rb8 a8Q Bh3 Qd4 g4 Nc8 Rb6 Rc1 Rd6 Ra6 Ba4 Rb6 Ba2 Be1 Bc4 Qd1 Rd3 Rb1 Qb3 Ba5 Qb4 Rd4 Qb3 Qd5 Qb4 Qdd8 Qb3 Qe1 Qb4 Bd1 e2 Qd2 Qb3 Qc1 e1B Be2 Bc3 Qd1 Bd5 Re4 Bb7 Rf4 Ba6 Rd4 Qbd5 Rc4 Qb7 Qc1 Nd1 Rb3 Nb2 Qd1 Re3 Rd4 Na3 Bc4 B6b5 Be6 Be2 Bc4 Bf1 Be2 Nb5 Rc4 Rd3 Ne1+
1qq2n1Q/1r1bB2B/1b2R1q1/r3n1r1/2RNpQp1/k3PN2/2p1N1PK/bq5R b - - 0 1 illegal: No proof kernel
bNq2bn1/1bQ2n2/1K4N1/1pp2nr1/pr1R1R2/kPPB4/2rbQ3/1NB2qR1 b - - 0 1 illegal: No possible last move
kBK3nr/1r1p2b1/1bQrN1BQ/1p1RpR1Q/1q2P1N1/3P4/1R6/1qnb2rq b - - 0 1 illegal: No proof kernel
3N1Q2/4R3/n2pr1qb/nQ4p1/1Q1Pq1B1/1q1r4/prk1rRPN/NbB2K1b b - - 0 1 illegal: No possible last move
qqQ1n1K1/1B4p1/2rQ2rp/4bRnb/k2p1r1b/2Qr2P1/1R3RqP/2B2NN1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 Ke2 d5 a4 Kd7 c4 Kc6 f4 e5 c5 b5 a5 e3 Kf3 b3 a6 e2 a7 e1Q f5 h6 Kg4 e4 Kh5 b2 Kg6 e3 Kf7 e2 f6 b4 Bf4 Kb5 c6 b3 c7 d3 Nd2 b1Q Qc2 d4 Qa2 b2 Ngf3 Qg3 Ng1 e1B Be2 Bd6 Bf3 Bg4 c8Q Be5 Bd5 Nd7 Qc2 Nf8 Qc3 Ne6 Bb3 Rc8 a8Q Rc6 Q8a3 Qa8 Nf1 d2 Bc2 d1R Bc1 Rd3 Qd6 Qf3 Qa7 Bh4 g3 Qg2 Qac7 Be2 Qc8 Ng5+ Kf8 Bh5 f7 Nf6+ Ke7 Rd1 f8R Rd3 Ra2 Ne8 Rf5 Rf8 Bd1 Rf6 Bf3 Rg6 Kf8 Qa6 Ra3 Qa8 Rb3+ Ka4 Rb5 Qbc2 Rb6 b1R Rb2 Qb3 Rf2 Qbb8 Kg8 Rc7 Bb7 Rf7 Nf3 Rb6 Rg1 Rc6 Rb2 Qh1 Rgg2 Qg1 Rge2 Qg2 Ng1 Rff6 Rf3 Rf4 Ref2 Re4 Rf7 Rf4 Rf5
5bN1/Q1pr1q2/B2p2b1/RrR1nNq1/1B2q2k/2PbB1p1/2NP2Q1/n2K2nb b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 g5 axb4 g6 hxg6 Ba3 g5 Bc1 g4 h4 Ke7 a4 Kf6 e4 b5 h5 Kg5 a5 f5 c3 g3 e5 g2 a6 b3 a7 b4 e6 f3 e7 f2+ Ke2 f4 e8N b2 h6 d6 h7 f3+ Ke3 b3 Na3 b1B Nf6 b2 Qa4 Ne7 Rh2 Nd7 Nd5 Ne5 Qc6 Bb7 Nf6 Bg6 Ne8 b1Q Ne2 g1N Ng3 Nd5+ Kd4 Ne3 Nf6 Rb8 Ba6 f1B a8Q f2 Qa7 Bfd3 Qg2 f1Q Ng8 Qf7 Nc2 Bd5 Rh1 Rb5 Rh5+ Kg4 Ba3 Qg5 Bb4 Qe1 Qf1 Bh1 Nf5 Qeh4 Ra5 Qe1 Rh2 Qeh4 Re2 Qe1 Qg2+ Kh5 Ng3+ Kh4 Rf2 Qe2 Rf5 Qd8 Rf4+ Qg4 Qc6 Qff6 Qca8 Be8 Na1 g5 Qg2 Beg6 Re4 N3c4 Rf4 Na3 Ke3 Nc2+ Kf2 Qfe7 Rc4 Qe4 Rc5 g4 Nf5+ Kg5 Nb3 Na1 Nbd4 Kh5 Nc2 Qf6 Ne3 g3+ Ke1 Qg5 Kd1 Qd7 Ngh6 Rg8 Nc2 Rg7 Ng8 Qe8 Bc8 Rd7 Ba6 Qf7 h8B Nc4 Bd4 Ne5 Be3 Kg4 Ng7 Kh4 Nf5+
4b2N/p1n1BR2/2pqQnnb/r3pK1n/1N1Q4/P1r1rB1k/2PB2b1/4qRN1 b - - 0 1 illegal: No proof kernel
N2Q1RK1/1p1nR3/N7/2p4R/1rQ4b/BPPp1qQn/Bnr3n1/nbkbn3 b - - 0 1 illegal: No proof kernel
1rn1NK2/1rnN2n1/bQ1RpbpQ/B2r1nrB/2R3P1/4P3/n1Q1k1p1/1R5q b - - 0 1 illegal: No proof kernel
Qk2r3/q2R4/1b2rBRq/1bBn1Bp1/N2r1pn1/3pN1P1/Kn1Pnr2/QR6 b - - 0 1 illegal: No proof kernel
1nBrqq1Q/3bnpQ1/ppb1q3/P4BQ1/rP2NpK1/R5B1/r3kR2/b4N2 b - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 d5 gxh4 d6 cxd6 Qd3 d5 Qd1 d4 Kf2 Ke7 Kf3 Ke6 c4 Kf5 b4 d5 a4 h5 c5 d3 c6 b6 c7 d2 Nc3 h3 Ne4 h2 Ra3 Bd7 c8B h4 g4+ Ke5 e3 h3 g5 d4 g6 d3 g7 Ne7 g8Q Qe8 Ne2 Bg7 N2g3 a6 Qe1 d1R a5 d2 Bd3 Bf6 Rg1 h1B+ Rg2 h2 Qg1 Kd5 Qg7 Ba1 Nf1 Qf8 Bc2 Kc4 Bb2 Re1 Bf6 Rh5 Bh4 d1Q+ Kf2 Rg5 Rg3 Qg4 Rf3 Qe6 Bb1 Re5 Q1g5 Bg2 Bg3 h1Q Nf6 Rd1 Bf5 Qhh8 e4 Red5 e5 R5d2+ Kg1 Qe8 Ne4 Qhf8 Kh2 Bh1+ Kh3 Ra2 Kg4 Rdd2 Rae3 Ra4 Ra3 Ra2 Rae3 Kd4 Ra3 Qb3 e6+ Kc4 Ne3+ Kd3 Nf1+ Ke2 Nf6 Ng8 e7 Qe6 Ne4 Qd8 e8Q Ne7 Rfc3 Bg2 Nd6 Bgc6 Rf3 Qg8 Qef8 Qe8 Ne4 Qh8 Qfg8 Qhh6 Q7h8 Qhf8 Qg8g7 Bb5 Bf2 Nbc6 Bb7 Rd8 Bg3 Nb8 Bc8 Bbc6 Rf2+
Q1nr2Bq/2n5/2N1qppp/2R1n1NQ/1RQ4K/2b2P1P/1b1Bbp2/B2r1qk1 b - - 0 1 illegal: No proof kernel
3b2k1/1prQb2r/1nn1q1p1/4r1RR/b1q1p3/1np1PB1N/NP2Q2R/BK1N4 b - - 0 1 illegal: Other
2k5/p5r1/3q1nN1/BKQQqnR1/2R2ppQ/P2B2rN/pR1b2P1/1r2qbb1 b - - 0 1 illegal: No proof kernel
R1N2rn1/2p1B3/bnQ2q2/n1KNrpnk/6p1/2P1pP2/4NQ1b/BbRB2n1 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 axb6 Bh3 b5 Bf1 b4 Ke2 b5 Ke3 g5 a4 f5 d4 Kf7 h4 Kg6 a5 e5 a6 b3 d5 g3 a7 b2 d6 b4 d7 g4 Qd3 b3 Qd4 g2 Nc3 b1B Bb2 Qf6 d8B Kh5 Be7 Ba6 Be2 Nc6 Bd1 Na5 Nd5 Re8 Ne2 g1N a8N Bg7 Bc3 b2 Nab6 Rf8 Nc8 Rh7 Ba3 Bh8 Qc5 Re7 Qc6 Re6 Bd4 Ree8 Be7 Bg7 Kd2 e3+ Kc3 e4 Kb4 Bh6 Ra4 Bf4 Kc5 Bh2 Ra1 Ba2 Rc1 b1N Ba1 Nd2 c3 Ndc4 f3 Nb6 Bd8 Re5 Be7 Bb1 Bc2 Kh6 h5 Kg5 h6 Kh5 Nd4 e2 h7 e1N Bd1 e3 Ne2 Nc2 h8Q+ Nh6 Qg8 Nd4 Qge6 Ng8 Qed6 Re4 Qg3 Re5 Qf2 Ne6+ Kb4 Ng5 Kc5 Kh6 Rc2 Bb5 Ra2 Kh5 Ra4 Nac4 Ra7 Ba6 Ra8 Na5 Bc2 N1h3 Rc1 Ng1 Bd1
Rb1B2Q1/1r1rp2p/b1rR1rB1/3K1Npq/7b/NpR1Pn2/1Nr4P/2k1n1Q1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 Kd2 Kf7 Kd3 Ke6 Ke4 g5 f4 b5 a4 d5+ Kd3 Kf5 c4 g3 e3 g2 a5 b3 a6 b2 c5 b4 c6 Nd7 c7 Qe8 a7 Nh6 Ra3 Ng4 Ra2 Nf2+ Ke2 Ke4 f5 d3+ Kd2 d4 f6 Ne5 f7 Ba6 c8Q Bg7 f8N Qh5 Qd8 Rc8 a8R Rc6 Ne6 Rf8 Ra1 Rf6 Na3 b1R Nf3 g1B Nf4 b3 Ne1 Rb2+ Nec2 Ra2 Bb2 Nf3+ Kc1 Bh8 Qg8 d2+ Kb1 d3 Bc3 Bg7 Nd4 Rc2 Nf5 Bh8 Qc1 d1R Ba5 d2 Bd8 Nd3 Be2 Nde1 Nd3 Bg7 Nb2 Bf2 Bc4 Bh8 Bf7 Bh4 Bg6 Bg7 Ra2 Bh8 Ka1 Bg7 Qb1 Rc1 Rc8 d1R Rc7 Rb6 Rc3 Rb7 Rf1 Rd5 Rf2 Rdd7 Rd2 Rc6 Rdd3 Be5 Rd1 Bb8 Rd6 Rd1 Qc1 Rd3 Qd1 Ng2 Qg1 Nge1 Nac4 Rd5 Ra5 Re5 Na3 Re6 Kb1 Rf6 Ra4+ Bc4 Ra8 Ba6 Rc4+ Nd4 Na4 Rc1+ Kb2 Kd3 Rc5 Kd2 Rc2+ Kd1 Rc4 Rb1+ Kc3 Rb2 Rc5 Rf2 Nb2+ Kc1 Rc4 Nf3 Rc5 Ne5 Kd4+ Rc2 Rc3 Nf3+ Kd5
3bR3/1rQRp1pk/4b3/2pNqnBQ/N1P1P3/1nr2n2/4Bpnr/BQ1K1b2 b - - 0 1 illegal: Other
R2n1bn1/1N2b3/Bpprr2Q/p1P2pRq/Br2NK1n/1P5Q/1k6/3nBb1R b - - 0 1 illegal: No proof kernel
7K/pp1rbrBB/1qrR4/1kn5/N3RBR1/PQ3bpn/pPnb1N2/1rQ5 b - - 0 1 illegal: No proof kernel
1N1qN3/npQ1kbbp/1P3b1r/qR5B/n6B/pNQ1p3/Pb1r1Q2/2R1n2K b - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 g5 c5 gxh4 c6 dxc6 Ne2 c5 Ng1 c4 f4 c5 Kf2 e5 g4 a5 Kg2 e3 d4 a4 b4 e4 f5 e2 f6 a3 g5 c3 b5 c2 g6 c4 g7 c3 f7+ Ke7 d5 Na6 Qe1 Be6 Nf3 Nc5 Ne5 Ra6 Nd7 Na4 Nb8 h3+ Kh2 Rc6 b6 e3 Bd2 c1B d6+ Kf6 d7 c2 Rg1 Bb2 Kh1 c1B Rg5 h2 Rb5 Ne7 Bh3 Rg8 Bg4 Nc8 Bh5 Na7 Bb4 Rd6 Qc3+ Ke7 Nd2 e1N Nb3 Bc4 Ba5 Rh6 Rb1 Bd2 Rc1 Rh8 g8Q Be6 Qg1 Bg7 f8N Bf7 Ne6 Rf8 Qf2 Bf6 Qd4 Bdc3 Nc7 Rg8 Qc4 Rg2 Ne8 Bg7 Qc8 Bcf6 Bd2 Rg5 Bc3 Rd5 Be5 Rd2 Qc3 Nd3 Bg3 Ne1 Bh4 Nd3 Kg2 h1Q+ Kg3 Qe4 Kh2 Qb4 Kh1 Qa5 Qg1 Ne1 Qf2 Qc7 d8Q+ Kf8 Qd7 Qd8 Qdc6 Ke7 Qc7+
K1Q1kNB1/p4p1B/1NN1rP1p/r1R4q/2pn1BQP/bb6/1Rqn1bn1/1b6 b - - 0 1 illegal: No proof kernel
3B2b1/1p1Q1B2/pKp1n2p/1bNr1N1q/Pq1r1kNP/R4Q2/3nBR2/b2r1b2 b - - 0 1 illegal: No possible last move
2R1r3/QQK2b1B/1r2pQrp/3pBn1P/n1p2kbq/2b4q/B3P3/bNR1N3 b - - 0 1 illegal: No proof kernel
b4qb1/Q3q3/5p2/1p2pr1R/nnN2BR1/Q1pbPNn1/1PBBr1k1/2K1N1b1 b - - 0 1 illegal: No possible last move
R2nn3/1r3b1B/pR1R4/2Qpr2n/Q1Np1b2/KN1p4/PnQP1k1q/1bq3B1 b - - 0 1 illegal: No possible last move
1R1q1Qq1/2q1ppR1/8/QN1bNQ2/p2n4/Br1n1Pr1/Pqp1B3/2Bk1rbK b - - 0 1 illegal: No possible last move
3K4/2p3pb/1k1QRp2/2b1Q3/2qNn1P1/NpP3Rr/BBn1BNb1/q2r2nb b - - 0 1 illegal: No proof kernel
1k3rnN/B1bB1b1n/2p5/1RBrbp1n/p1q1Q1bp/PN5P/Q7/nKR4R b - - 0 1 legal: proof: e4 d5 c4 dxe4 f4 g5 c5 gxf4 c6 bxc6 Be2 c5 Bf1 c4 g4 Kd7 d4 e5 Kd2 h5 Kc2 a5 b4 a4 a3 e3 g5 e4 g6 e2 b5 e1N+ Kb2 c6 b6 f3 h3 e3 g7 h4 d5 c3+ Ka2 c2 b7 Kc7 Nd2 f2 Qg4 e2 Qc4 Nd3 Nb1 e1N Bd2 c1B Bb4 Bb2 Bc5 Nc2 Nd2 Nd7 b8R Nf4 Ngf3 Ndf6 Qe4 Bd6 Bd3 f1B Rb5 Bbe5 Kb1 Nh7 Ng5 Nh5 Nb3 Ra5 Be2 f6 Bg4 Bc4 Nf7 Qe7 Bd7 Qe6 Ra2 Na1 Rc2 Qg4 Rcc1 Qe2 Be8 Bg4 Bd7 Ne7 g8Q f5 Qg7 Re8 Nh8 Rf8 Qf7 Ng8 Qe6 Kd8 Qf7 Bc7 d6 Qf1 Qfd5 Qe2 Qd2 Bf7 Qa2 Qc4 Be6 Bb6 d7 Kc7 d8B+ Kb8 Bd7 Ka8 Bde7 Bbc7 Bb6 Kb7 Rb4 Rd5 Rb5 Ka8 Bec5 Kb8 Ba7+
1bBr2kn/3bB3/1pQ2p2/R1n1RP1b/1PQ2K2/2pRNp2/3p1r2/nQN1r2q b - - 0 1 illegal: No proof kernel
QN1rB1n1/n1n4p/R2qQp1p/r1Bp4/p3r3/bb2RPR1/1B1PKb1k/2N5 b - - 0 1 illegal: No proof kernel
qbr1Q1N1/2BRbq1n/2rp3n/2pP1b2/Q1p1pp2/2QB4/N1B1kPR1/4n2K b - - 0 1 illegal: No possible last move
2N5/1kpq2p1/p4ppR/1RPbqP2/KNn2B2/b1Q2Q2/2rN2B1/Qr1nqb2 b - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 g5 bxa4 g6 hxg6 Kd2 d5 e4 Kd7 b4 Kc6 f4 d3 Kc3 a6 h4 a3 Kb3 d2 c4 d4 e5 a2 e6 f6 b5+ Kb7 h5 d3 b6 Kc6 h6 Bd7 h7 Bb4 c5 Ne7 b7 Ba3 f5 Nd5 e7 Be6 e8N Ne3+ Ka4 Bd5 Qf3 Nd7 b8Q d1B+ Qb3 d2 Nd6 Rb8 Nc8 Be2 Nh3 d1Q Nf4 Ne5 Rh6 Qe1 Qc3 Nd1 Bg2 Qd7 Nd2 Nc4 Rb1 a1Q Rb5 Bf1 Nd3 Rb6 Nb4+ Kb7 Rh1 Re8 h8Q Re2 Rh6 Rf2 Qe8 Qb2 Qee5 Qa1 Nb3 Rc2 Qed4 Qe5 Bf4 Qc1 Qa1 Qce3 Qd2 Qe1 Qdc3 Qee8 Nd3 Kc6 Ra5 Q8e5 Nd2 Rb1 Nb4+ Kb7+ Rb5+
n2B1kqb/4Qr1r/3Npq1N/2Kpn2B/4PR2/1ppb4/RP1bp1Q1/2R1nB2 b - - 0 1 illegal: No proof kernel
4Bk1N/1K1Q2b1/1B3qQ1/1R1Q2bb/pp1pB1p1/PNp2rq1/1n1n2P1/5Rrn b - - 0 1 illegal: No proof kernel
B2K2n1/prp1Qp1p/P1bBQ1r1/1R1rb3/1pP1N3/RB2n2q/2N1q3/1Q4kb b - - 0 1 illegal: No proof kernel
1R2B2r/NQpR2q1/5B1r/1bbK2Qn/kpPp1qpR/1Q3N2/n1rp2P1/5n2 b - - 0 1 illegal: No proof kernel
kBb5/3q4/1rrnp1KQ/1RRr2p1/1N2P1p1/2QQp1P1/1p3nNn/b4BRr b - - 0 1 illegal: No proof kernel
Rr1r2NQ/1B1n3p/q3b2p/1pbB2bN/n3Rp2/r4P1P/bQkp2N1/6BK b - - 0 1 illegal: No proof kernel
1rB1nQRK/Q1p1Bq2/3p2b1/2p1pR2/5p2/n1n1P2n/1B2NPNr/1kb2Nb1 b - - 0 1 illegal: No proof kernel
1n2N3/n1qN1RQ1/rR2K2p/5p2/1pnppb2/qNBB1Pn1/1P1rb3/1k2Q2R b - - 0 1 illegal: No possible last move
5b1R/nR1Rp2n/p1k2p2/4q2q/4Q1b1/2BQPp2/Nrr1pPrr/N2BK2Q b - - 0 1 illegal: No proof kernel
R2r4/b4b1N/2Q2p2/ppp1qk2/Np3Pb1/5R1n/1BPn2Kb/1q1RrBQB b - - 0 1 illegal: No proof kernel
3NQBkN/1r3b2/1p2Rn1r/4b1NR/BPp3pp/2Qp2n1/pKP1rb2/1Q3q2 b - - 0 1 illegal: No proof kernel
B2B3N/Np2nr2/1r3qpp/p7/1p3kPb/Nb1Q4/RPQ2np1/2K1nRBb b - - 0 1 illegal: No proof kernel
1b1b2bn/Qp3RnQ/qrpkBpp1/2B1p3/1N3rP1/p1N1q3/5PN1/4RRK1 b - - 0 1 illegal: No proof kernel
8/rpbQp2r/N3r1Rp/1k5q/NPpKQp2/1BR1Bb1P/q1Qn2np/6R1 b - - 0 1 illegal: No proof kernel
b2Nn1nK/r1qQ3Q/2pBp1p1/nkp2N2/R1R1P3/2N1p3/5pPb/2n1r1QB b - - 0 1 illegal: Other
R3BQ1B/b1r1N1P1/3pR3/Knbp4/1r4r1/Rr2NP1R/2Rqr1k1/1n6 b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 g5 exf5 b5 d4 c6 h4 gxh4 d5 cxd5 a6 b4 a4 Nh6 a5 Bb7 axb7 Ng8 a6 Nc6 b8Q Nxb8 Kd2 Kf7 c4 Kf6 g4 Ke5 c5 Ke4 c6 h5 a7 b3 Kc3 b2 Kb4 h3 g5 h4 g6 h2 f6 h3 c7 Nc6+ Ka4 Rh7 c8R Rb8 a8R Nd4 f7 Nb5 Be3 Nf6 Ne2 Kf3 Bd4 Ne4 Na3 b1R Ra6 Nd2 Nc2 Rb3 Nb4 Nb1 Rg1 h1R Ra3 h2 Rc2 e5 Rd6 e4 Nc6 e3 Re6 Bc5 Nc3+ e2 Bh8 Qg5 Ka5 d6 Ne7 Qd2 f8R+ Rf7 Rg5 Rg1 g7 h1R Rh5 Rh2 Rh3+ Rg3 Qc1 e1B Bc4 Rb6 Ra8 Kg2 f3 Bef2 Bd3 Rg4 Bg6 Rbb4 Nd1 Rb8 Qb2 Ba7 Qf6 Bfc5 Nc8 Rc7 Qf8 Kg1 Bf7 Re2 Be8 Kg2 Ne7 N5c3 Re5 Rb3 Re4 R8b4 Re6 Nb5 Ne3+
1n5B/b6n/2R4P/NkpP3q/npNNNq2/1NBqq2Q/3Rq3/4n2K b - - 0 1 legal: proof: c4 d5 d4 dxc4 f4 b5 e4 a6 d5 Ra7 b4 a5 e5 axb4 Bb2 Ra6 Bc1 Rd6 exd6 Bb7 Be2 Ba6 Bf1 Bc8 g3 h5 Qg4 e5 Qe2 f5 Bh3 g5 Qd1 e4 Bg4 Rh7 Bd2 Re7 Bc1 Re5 fxe5 f4 Be2 Bb7 g4 Bc8 Bf3 Bf5 gxf5 Bh6 Be2 Bf8 Bg4 hxg4 Kf1 Kd7 Kg2 g3 h4 g4 a4 c3 a5 b3 a6 b2 h5 e3 a7 e2 a8N b4 h6 c2 f6 Qe8 f7 Nf6 Qf1 Nh7 Bd2 c1Q Rh2 e1N+ Kh1 f3 Bc3 f2 Qh3 f1Q Ra6 Qe2 Nd2 b1Q Ngf3 Qbd3 Nb3 Qf4 Nfd4 c5 Rc6 g2+ Kg1 Be7 f8B Qh5 Bg7 Bd8 Bh8 Bb6 e6+ Kd8 e7+ Kd7 e8N Ba7 Rb6 Kc8 Rc6+ Kb7 Nb6 Ka6 Nf3 Kb5 d7 Qee5 d8N Qe7 Kf2 g1N Nf6 Ne2 Nc4 g3+ Kf1 Qee8 Ne4 g2+ Kf2 Qe7 Nb7 Qee8 N7a5 Qe7 Bcf6 Nc3 Kg1 Na4 Bc3 Qef8 Kf2 Qfe3+ Kg3 g1Q+ Rg2 Qgf1 Kh2 Qff5 Rd2 Qfe2+ Kh1 Qff4 Nfd4+
4bQNB/2q2rn1/2R4N/PkP1N2r/qp2p1K1/1n1B4/3nNN1p/2b4R b - - 0 1 legal: proof: b4 c5 h4 a5 bxa5 g5 e4 gxh4 a4 f5 exf5 Rxa5 d4 Ra8 a5 Qb6 Nd2 Qb1 Nxb1 cxd4 Ke2 e5 Kf3 d5 g4 Kd7 c4 Kc6 f6 h5 g5 b5 f7 h3 c5 h4 g6 b4 g7 e4+ Kf4 d3 f3 d4 Bd2 h2 Na3 h3 Ra2 Rh5 Nb1 Nf6 g8N Kb5 Bc3 Ra7 Rd2 Ne8 Ne2 Nc6 Nh6 Ng7 Qc1 Be7 f8N Bd7 Ng6 Be8 Kg4 Bg5 f4 Rf7 f5 Bf4 Rd1 d2 f6 d3 Ne7 Nd4 Neg8 Nb3 Bb2 Bg5 Qc3 Be3 Qd4 Bf4 Qd6 Bg5 Qf8 Bf4 Re1 d1N Ba1 Nc3 Rd1 Bc1 Bb2 Re7 f7 d2 Ba1 Na4 Bb2 Nb6 Bd4 Nc4 Bc3 Ne6 Bh8 Ng7 Nbc3+ Ka6 Nd5 Kb5 Ndf4 Rc7 Nd3 Rd7 Rg1 h1Q Nf2 Qh2 Re1 d1Q Rh1 Qd2 Rd1 Qc2 Rd6 Ncd2 Rc6 Qc7 Qd6 h2 f8N Bf7 Ng6 Be8 Qf8 Qa2 Ne5 Qa4 Ng3+ Nc4 Bd3 Rf7 Bb1 Ncd2 Ne2 Na1 Bc2 Nab3 Bd3+
3Bq1R1/1KN3n1/1R1Rq3/3B4/1Pq4R/nr1b3R/br1QrP1N/1k2brn1 b - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 f5 h4 g5 e4 gxh4 b3 fxe4 Ne2 a5 Ng1 a4 Ba3 axb3 Bb2 Ra2 Bc1 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 e5+ Kc4 c5 Kb5 c4 d4 c3 g5 c2 g6 b2 g7 h3 Ra2 e3 Qe1 e2 Rh2 h4 Nf3 e4 Be3 c1Q Nc3 b1N Ng5 Be6 Ra1 Nf6 g8R Bh6 Ra6+ Nc6 Qd1 e1R Bg2 Ne8 Qh5 Na3+ Ka4 Ng7 Qe8 Re2 Nd1 Qc4 Ra5 Ne5 Rf8 Nf3 Rf4 Ng1 Nf3 Rf8 Qb5 Qe8 Nc3 Rf5 Bd2 e3 Re4 Rc8 Ra6+ Rc6 Rh1 h2 Ka5 h3 Rb6 Re5 Bc1 Rb2 Ka6 e2 Rh4 e1Q Bg5 Ree2 Bd8 Bd2 Kb7 Bf5 Qa4 Bd3 Qd1 Rb3 Na4 Bc3 Nc5 Reb2 Na6 Q1e6 Nc7 Be1 Qc2 Ne2 Rg1 h1R Qd2 h2 Rf1 Rg1 Rh3 h1B Nh2 Nf4 Rh4 Nh3 Bf3 Bg2 Be4 Rh1 Rg1 Bgf1 Rg3 Ng1 Rgh3 Bb1 Bg2 Bfd3 Be4 Ba2 Bf3 Kd7 d6 Rc5 Bg2 Re5 d5 Re2 Qc2 Nf3 Qd2 Nh5 Bg5 Rf1 Bf6 Ng1 Bh1 Rc3 Bd4 Kd8 d7 Ke7 Bf6+ Kf7 Be7 Rcb3 d8R Kg7 Rd7 Kf7 Bd6+ Kf6 Be7+ Ke5 d6 Q6g6 Be4 Kd4 Bd5+ Qe4 Rd8 Qg4 d7 Qe4 Qe3+ Kc3 Qf4 Kc2 Qd2+ Kb1 Bg5 Q8e7 Rg8 Ng7 d8R Qe8 Rdd6 Q4e6 Bd8
4nBK1/2br1Q2/n1R2Nb1/1r1P2P1/r5R1/2nkNB2/N1bn4/Nr2Nqn1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 e5 f4 d5 cxd5 b5 axb5 exf4 Rh3 axb4 Rh2 Ra5 Rh1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 c5 d4 h5 g4 h3 d6 h2 Kd5 f3 e4 b3 b6 b2 d7 h4 b7 h3 Ba6 c4 Ra4 f2 Nc3 f1R Na2 b1N Ra3 c3 Qe1 c2 Ne2 Bd6 Nec3 Qf8 d8N Bf5 Ne6 Bc7 Be2 Bg6 Ra4 Na6 b8N Rh7 Bh6 c1N Bf3 Ne2 Nc6 Ng1 Nf4 Rf2 Rb4 Rb2 Qf1 Ra7 Rc4 Rb5+ Rc5 Ra8 Nd1 Ra7 Na5 Nc3+ Kc6 Ra8 d5 Ke5 Kd7 Kd4 g5 f5+ Ke6 Rd7 e5 Nf6 Ne3 Ne8 Nfg2 f4 Rc6 Ra7 Qf2 Kd3 Nb3 Ra8 Na1 Ra7 Bh5 f3 Bg7 Qf4 Bf8 Ra8 Qb2 f2 Bf3 f1N Qf2 Nd2 Qf1+ Nge2 Rg1 h1B Qf2 h2 Qf1 Qc4 Qf2 Ng7+ Kf6 Ra7 e6 Ra8 e7 Ne8+ Ke6 Ra7 Bh5 Ra8 Qf7 Qf4 Bg4 Qf1 Bf3 Ra7 Nh4 Ra8 Rg4 Ng1 Nhg2 Nb8 Bg7 Ra4 Bf8 Na6 Qf6 Bh7 Kf7 Be4 Kg8 Bg6 Nh4 Bg2 Qf7 Bh3 Nhg2 h1R Rf4 Bhf5 Rg4 Nd6 e8N Be4 Nf6 Ne8 Qh7 Kd4 Rg3 Bc2 Rg4+ Kd3 Qf7 Rh4 Rg3 Rhb4 Rg4 Rb1 Ne1+
1n2rrN1/B2b1bK1/b5n1/1B2P3/B3q1R1/N1P1R1BQ/1qq1bk2/B2nn3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 g3 b5 axb5 g5 Ra2 Be7 Ra4 g4 Ra1 Bg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kf4 Kd5 b4 h5 b6 a5 c3 g2 e3 d3 b5 g3 b7 d2 g6 a4 b6 h4 g7 a3 Qa4 d1N Bb5 h3 Qa7 h2 Bd2 a2 Na3 Qe8 Kg5 Ke4 Ba6 d5 Nb5 d4 Rc1 a1Q Na3 d3 Bc4 f4 Bb5 f3 Nh3 g1N Nf4 f2 Nd5 Kf3 e4 f1B Nf6 Ne7 g8B g2 Bb3 Ng6 Ng8 Kf2 Kf6 Qb2 Kg7 Bd7 B3a4 Nf3 Rg1 h1B Rb1 Qc2 Bc1 d2 Bb2 Ne1 Ba1 Bc4 Rb4 Bf7 Rd4 Qe6 Rd3 Qeb3 Re3 Qbb2 Nh6 Rf8 Ng8 Nc6 Qa5 Rae8 Qb4 Nb8 Qd6 Bc4 Qh2 Bf7 Qh3 Nd3 Rge1 g1Q Rg3 Qf1 Ree3 Qe2 Rg5 Ne1 Rg4 Na6 b8B Qed3 e5 Qe4 Ba7 Nb8 b7 Bf3 Bb6 Be2 Bd8 Na6 b8B Bf1 Ba7 Nb8 Bc6 Ba6 Bcb5 Bb3 Bdb6 Bf7 Reg3+ Ne3 Bd8 d1B Bh4 Be2 Bg5 Qd4 Bf4 Nd1 Re3 Qde4 Bg3+
3R3Q/Bn4bR/k1K5/br1NB1nn/q1b2B1b/P3N1P1/r1B1B1b1/2b1n3 b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Nf3 fxg3 Na3 g5 Nb1 g2 Ba3 g1B Bb2 Bb6 Bc1 Bg1 Nh4 g4 Nf5 g3 Nh4 g2 Nf3 Qg5 Ba3 Bd6 Bc1 Qg3+ hxg3 Bf8 e4 Kd8 Ke2 b5 Kd3 h5 e5 c5 Ke4 Kc7 d4 Kb7 d6 f5+ Kd5 f4 e6 h4 d7 c4 d8B b3 e7 h3 e8B c3 Nbd2 b2 Bc4 b1N Bg5 h2 Bh4 b4 Nf1 c2 Bb2 c1B Ne3 b3 Bd3 Be6+ Ke5 Nf6 d5 Na3 d6 Bc4 d7 Ka6 d8B Nc6+ Kf5 Bg7 Bf1 Na5 Ke5 Rh5+ Kd6 Rb5 Bb6 Nh5 Ba7 Nb7+ Kc6 Nc2 Qe2 Ne1 Nd4 f3 Nd1 f2 Ba3 b2 Bg6 b1N Bc2 Nd2 Ne3 Ndf3 Bf6 Ng5 Be5 Bf6 Qd2 Bg7 Be2 f1B Nd5 Be3 Bf8 g1B Nf5 Bg2 Qc3 Bf4 Qb2 Bb6 Bfd6 Ba5 Bdb8 Bfd2 Ne3 Bdb4 Bf4 Be7 Qf6 Bed8 Bbe5 Be7 Qf8 Bed8 Qh8 Bdf6 Rg1 h1Q Rb1 Qh3 Rh1 Qg4 Rh3 Ngf3 Rb3 Bh4 Rd3 Ng5 Rh1 Qf5 Rd4 Qf8 Rd1 Qb4 Rd3 Qa4 a3 Re8 Bb2 Re4 Bbe5 Rd4 Rd1 Rd2 Bg6 Ra2 Bc2 Nf6 Rh2 Ne6 Rd3 Bg5 Rh7 Bh4 Rd1 Ng5 Rd2 Nef3 Nc3 Nh5 Rd8 Ne1+ Ncd5
1rB1r1n1/1R6/B1bR4/P3Pr2/Rqk1rR2/1NN1R3/rbb1nKb1/2r4Q b - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 f4 e5 hxg5 axb4 c4 exf4 Ba3 bxa3 cxd5 Qf6 Qc2 Qe7 Qd1 Qd8 g3 Ne7 e4 Kd7 d4 Kd6 g4 h5 g6 f5 a5 c5 g7 b5 g8B a2 g5 h4 g6 b4 g7 c4 Ke2 h3 Kf3 b3 Kf2 f3 Qe1 f4 Qe3 b2 Qb3 h2 Nd2 b1B Qb2 c3 Bf7 c2 g8R Bb7 Ke1 f2+ Ke2 f3+ Ke3 Nbc6 Ba6 f1R Rg3 f2 Be6 Qb8 Qc1 Re1+ Ne2 f1R Bc8 Rf5 Rf1 h1B Nb3 Bg2 Rf4 Bg7 Kf2 Re8 Qd1 c1R Rgf3 Bf8 Nc3 Ng8 Rd3 Bc2 e5+ Ke7 Rdf3 Re4 d6+ Kf7 d7 Ke6 Qg1 Ba3 Qh1 Bb2 Rh3 Qd6 Re3 Qb4 d8R+ Kf7 d5 Nd4 d6 Ne2 d7 Ke6 Rh3 Rb8 Rd3 Bc6 Re3 Re7 Rf8 Re8 d8R+ Bd7 Nb5 Kd5 Rf7 Kc4 Re7 Bc6 Rd6 Bd4 Rb7 Bc3 Rb1 a1R Rb2 Bd4 Ra2 Bb2 Ra4 Ra2 Nc3+
R1Rbn1n1/2b1P2r/2N1BB2/2bk1r1R/1PnrN3/1K3nn1/2n2R1r/Q2R4 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 d4 e5 d5 exf4 d6 f3 Nh3 f4 Ng1 cxd6 Bd2 d5 Bc1 d4 h3 g5 Bd2 Qf6 Be3 Bb7 Bc1 Be4 Bg2 Bf5 Bf1 Qg7 gxf5 g4 Bd2 g3 Bc1 Qg4 hxg4 Bg7 Ra2 Bh6 Ra1 Bf8 Kd2 Ke7 c4 Kd6 Kc2 a5 e4 h5 b4 d3+ Kc3 a3 g5 h4 f6 h3 g6 d2 f7 a2 g7 a4 Bg2 f2 Kc2 f1N Qe1 d1N Bd2 f3 Qe3 a3 Qe2 h2 Be1 f2 Qh5 Nde3+ Kc3 Nd2 Qf3 f1N Ne2 Be7 f8R Bd8 Qf2 Nf3 Nd4 Rh7 Qc2 Ra5 Ne2 Na6 Qc1 Rf5 Nd4 Nc7 Bh3 g2 Kb3 g1B Bh4 Ne8 Nc6 Ng3 e5+ Ke6 c5 d5 Be7 d4 Nd2 d3 Ne4 d2 Bf6 Kd5 e6 d1R e7 Rd4 Qc3 Bf2 Rad1 a1B Qc1 Bb2 Qa1 a2 Bg4 Nc4 Rf7 Rg5 Bd7 Rf5 Rf8 Bc1 Rf7 Bf4 Rf8 Nh6 g8R Bfc7 Rh8 Ng8 Rhf1 Rf7 Rh5 Bg1 Rf2 h1R Na7 Rh7 c6 Ba5 c7 Rh2 c8R Bab6 Nc6 Bbc7 Qc3 a1N+ Ka4 Nc2 Qa1 Bb6 Kb3 Bc5 Rfd2 Be3 Rg2 Bf4 Rf2 Ba5 Ra8 Bfc7 Rc8 Ng7 Rfd8 Ne8 Ra8 Bab6 Rdb8 Bd8 Rc8 Bbc7 Be6+
1kn3NR/2Bn2P1/Q2nB2n/r2b1RBq/1K1pP1bb/3B4/3B3r/2n3Nr b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 cxb5 g5 a5 c4 a6 Nxa6 d4 c3 d5 Nb8 d6 Bxd6 hxg5 Bf8 b4 d5 g4 Kd7 g6 Kc7 g5 h5 e3 a5 g7 f5 g6 h4 Ba3 a4 Bd3 d4 Rh3 c2 Kd2 c1N Bf1 f3 Bg2 f2 Kc2 f1N Bb2 a3 Nc3 a2 Qe2 f4 Ne4 f3 Bc3 f2 Nf6 Nh6 g8B Nd7 g7 Qe8 b6+ Kb8 b5 Be7 b7 Nd2 Be6 f1N Be4 Ng3 Bd3 Ra5 Ng8 Nde4 Bd2 Ngf5 Rf3 Nfd6 Rf5 h3 Rb1 Ka7 b8B+ Ka8 b6 a1R Kb2 h2 Bc7 h1B b7+ Ka7 Bd8 Bh4 Bg5 Qh5 b8B+ Kb7 Bc7 Bf3 Bb6 Kb8 Qf1 Bg4 Qe2 Bb7 Bc7+ Kc8 Kc2 Bd5 Kb2 Kb7 Kc2+ Ka7 Rb8 Nc8 Qf1 Ned6 e4 Nb3 Qe2 Rf1 Kb2 Nc1 Kc2 Rf2 Kb2 Rh2 Qf1 Rb5+ Ka3 Ra5+ Kb4 Ncb6 Rd8 Nbc8 Ne7 Rh7 Rh8 Kb7 Ng8 Rh1 Bb6 Kb8 Bc7+ Ka7 Rf8 Bf2 Rf5 Qf7 Re5 Nhf5 Ne7 R7h2 Ng8 Qh5 Bb1 Nh6 Rf5 Bh4 Qc4 Ka8 Bd3 Kb7 Bb6 Ka8 Qa6+ Kb8 Bc7+
2bk1R2/2R4B/Nn2r2N/rqRr4/2P1p1R1/3P2nr/b1Q5/Bnrq1RK1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 h5 c3 h6 gxh6 Qe2 h5 Qd1 h4 d3 c5 Ra5 c4 Be3 c2 Ra2 c1N Bc5 c3 Ra1 c2 Bb4 Bg7 Ba3 Bc3+ bxc3 Qd7 Be2 Qd6 Bf1 Qd8 f4 a5 Kf2 e5 g4 h5 b6 e3+ Kg2 h3+ Kh2 e2 b7 e1R f5 a4 f6 h4 g5 Na2 g6 c1R g7 Qb6 f7+ Kd8 Bb2 a3 Qb3 Ne7 Nd2 Nd7 b8R Nf5 Ne2 Qb5 Kg1 Rh5 Ne4 Ng3 Nc5 Nb6 Nd4 Ra5 Qc2 Rg5 Nf5 h2+ Kf2 h3 Rb7 Re4 Na6 Rh5 Rg1 h1R Rc7 h2 Nh6 Rh3 Be2 Rd4 Kg2 Rd5 Rf1 Rg1+ Kf2 h1B Bh5 Bf3 Rb1 e4 c4 Bd1 Bd4 Nc3 Bg6 a2 Bh7 a1Q Rb2 Nb1 g8R+ Qe8 Rg4 Qb5 Rb4 Qaa4 Ba1 Rgh1 Qd2 Bb3 Qc2 Ba2 Rb2 R1h2+ Kg1 Rf2 Rb3 Rf6 Rb4 Re6 f8R+ Qe8 Rb5 Qb3 Rff7 Qd7 Rbc5 Qdb5 Qd2 Qd1 Qc2 Nd2 Rf5 Nb1 Rf8+
1Q1nKbNn/bB3P1R/4BBq1/2r3n1/2bp1P2/Bq3NRq/B3k3/4br2 b - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 g5 h4 gxh4 d3 Kf7 Qf3 Ke8 d4 cxd4 Qc3 dxc3 axb5 Qc7 Ra6 Qb6 Ra1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 d5 Kc5 Ke5 f4+ Ke4 b4 h5 g4 a5 g5 c2 f6 h3 b6 e5+ Kb5 h2 b7 a4 f7 h4 g6 a3 c5 a2 c6 h3 g7 Qg5 c7 Be6 c8B Ra5+ Kb6 Ne7 Kc7 Rc5+ Kd8 Ng6+ Ke8 Nc6 g8B Nd8 Ne2 Kf3 b8Q e4 b5 e3 Nec3 e2 b6 e1B Be3 c1Q b7 Qd1 Ba6 Qb3 Bh7 Qh5 Rg1 h1Q Bd4 h2 Ne4 Qh3 Rg2 Qg1 Bf6 h1N Nbd2+ Ke3 Rh2 Nf2 Nf3 Qg5 Rd1 a1B Rd3+ Ke2 Rh1 Bd4 Bd7 Bg4 Be6 Rg8 Rh2 Nh8 Bhf5 Qg6 Rh1 Qg2 Rh7 Nh3 Bc4 Qh2 Bc8 Ng5 Bfe6 Qb4 Ba2 Qh3 Qe5 Bdf2 b8B Qb3 Bb7 Be3 Bd6 Rg7 Rc3 Bf5 Nf2 Bd3 Ng4 Bc4 Nh6 Rc6 Bde7 Qgb1 Ba3 Ne4 Nh4 Ba7 N6f5 d4 Qd6 Rc5 Ne7 Rg1 Qb8 Rf1 Rg3 Ng5 Nf3 Qg6 Ng8
QBb2r2/K3PbB1/1rqR4/2b3R1/7N/pr2n1Bn/1qNPkB2/3b1B1n b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 Kf2 Ke7 h4 Kf6 e4 Ke5 d6 Kd4 b6 a5 h5 f5 d7 g5 b7 a4 e5 f3 e6 g3+ Ke1 g4 h6 g2 Kf2 g3+ Ke1 b3 h7 a3 Bb5 b2 Bc4 f4 Be2 Bc5 e7 Ra6 Qb3 f2+ Kd1 f1B Kc2 f3 Nc3 b1R Bb2 f2 Bf3 Nc6 b8B Rb6 Rh6 Nf6 Qa4+ Nb4+ Kb3 Kd3 Nd1 Ng4 Ne3 Qc7 d8B Qc6 Bdc7 Be2 Qa8 f1B Nc2 Rf8 h8B Bd1 Bd4 Nf2 Rd6 Nh1 Bd5 Bfe2 Nf3 g1Q Bf2 g2 Nh4 Bh5 Be4+ Ke2 Kc4 Qe1 Bg7 g1N Bg2 Rb3 Rc1 Nd5 Rb1 Rh3 Rb5 Bf7 Ra5 Bb4+ Kd4 Ne3 Rg5 Rf3 Rd8 Nh3 Bcg3 Qf1 Rd6 Bc5+ Kc3 Nd5+ Kc4 Rfb3 Be3 Qf6 Bef2 Qc7 Nb4 Ra6 Kb5 Rb6+ Ka5 Qb2 Nc2 Rb7+ Ka6 Ne3 Rd3 Qd7 Rd4 Qe8 Rd6 R7b6+ Ka7 Qc6 Bf1+
2bqbR2/1b1b4/B1bBN2b/7k/pQ1P1N2/n4Pr1/n3K1Bn/RBr3B1 b - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 d4 gxh4 e3 cxd4 Kd2 f5 Qe2 d5 Qc4 d3 Qe4 fxe4 Kc3 d2 Kb4 d4 Kb3 d3 Kc3 Qd4+ exd4 Ba6 Nf3 Bb7 Ng1 Bc8 g4 Kf7 b4 Kg6 g5 d1B Kd2 e5 c4 a5 b6 h5 b5 a4 b7 e3+ Ke1 h3 c5 e4 b6 h2 c6 h4 c7 h3 Ra2 e2 Na3 Na6 b8B Nf6 b7 Ng4 Ra1 Nb4 Be3 Bh6 Bd2 Rg8 Nf3 Na2 Bg2 Kh5 Rg1 h1B g6 h2 g7 Bb3 Rf1 Bf7 Be3 Be8 Kd2 e1N Nh4 Nc2 Kd1 d2 Nb5 Na3 Ng6 Ra7 Ke2 d1B+ Kd2 Bcd7 c8B Bb3 Be5 Bbe6 b8Q Rc7 Ba6 Rc1 Nc7 Bc8 Bd6 B6d7 Bh3 Bg2 Ne6 h1B Qb4 Bf3 Bg2 Nh2 Bef4 e3+ Kd3 e2 Be3 Rf8 g8B Bfc6 Bh7 Rf3 Kd2 Rg3 Ngf4+ Kh4 Bb1 e1Q+ Kd3 Qc3+ Ke2 B6b7 Bh3 Bhc6 Bg2 Qb3 f3 Qd5 Bg1 Qa5 Rd1 Qb6 Rd3 Qd8 Rc3 Rg6 Rc5 Rg3 Rf5 Nc4 Nh3 Na3 Rf8 Kh5 Nhf4+
1Qbn1n2/1R2qpRB/R1b3N1/2q1b3/kn4nP/n2N2P1/1n1BK3/3R2Rb b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 f5 a5 g3 axb4 f6 h4 Kd2 exf6 Ke1 f5 Bd2 f4 Be3 Qg5 Bc1 Qd8 Nh3 b5 Qd2 g5 Qd3 g4 Ng1 Ra3 Qd2 h3 Qd1 Rh4 gxh4 g3 Kd2 g2 Ke1 Rg3 hxg3 Bh6 Nd2 Bg7 Nb1 Bf8 e4 d5 c4 Kd7 a4 Kc6 e5 h2 a5 d3 a6 d4 c5 b3 e6 d2+ Ke2 f3+ Kf2 b2 a7 d3 a8R b4 e7 Kb5 e8R b3 c6 Ne7 c7 Nec6 Re3 Bg7 R8a2 Nd7 Re2 Qe7 Ra4 Nd8 Rd4 Nf8 Ra6 Be5 Rb6+ Ka5 Nc3 b1N Qe1 d1B Nh3 b2 Na2+ d2 Rg1 h1B Nb4 Ba4 Nf4 Na3 Nbd3 b1N Ng6 Nc2 Qd1 Nb4 Qb3 d1N+ Ke1 Bh8 Bd2 Bc6 Ree4 f2+ Ke2 Be5 Rg4 Na3 Rb7 Be6 c8R Nb2 Rcb8 Bc8 Rb6 Nd7 R8b7 Nf8 Qe6 Ka4 Qd6 Qe6 Qb8 Qe8 Ke3 Qe7 Be2 f1N+ Kf2 Nc2 Bd1 Nh2 Ke2 Ka5 Rg5 Na3 Bc2 Ng4 Nh8 Nb5 Rg7 Na3 Bb1 Ka4 Ng6 Qe6 Rc4 Qe7 Rcc1 Kb3 Rcd1 Ka4 Rgf1 g1Q Rfe1 Qgc5 Rg1 Nh7 Ne1 Bce4 Nh8 Nhf6 Bd3 Beg2 Bh7 Nd7 Nd3 Bc6 Ng6 Nf8 Ra6+
rrb5/2KpB1RQ/N2R1R2/2n4b/BRRP1nbq/1pNP4/1n6/r1n1k3 b - - 0 1 legal: proof: e4 g5 b4 f5 exf5 a5 Bb2 axb4 Ba3 Bg7 Bc1 Bf8 h4 gxh4 c3 Bg7 a3 Bd4 cxd4 bxa3 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 Kf4 g4 b5 f6 e5 g5 h5 f3 Kg3 g6 Kf2 f4 a2 g7 e4 f7 h3 f8R h2 f5 e3 f6 h4 f7 h3 Ne2 b4 Re8 b3 f8R+ Nf6 g8R Na6+ Kb5 c5 Rg6 c4 Qc2 c3 Re6 Nc5 Ng3 e2 Ba3 e1N Rd6 Ned3 Ne4+ Ke1 Rg7 Nd5 Rff6 N5f4 Bb4 Qe7 Kb6 Nb2 Kc7 Re8 Qd3 c2 Nbc3+ c1N Rhg1 h1B Qb1 Ncd3 Nc5 h2 Na6 Nc5 Qh7 Bf3 d3 h1B Bg2+ Kd2 Ba3 Bg4 Bc6 Bhf3 Ba4 Rh8 Rg2+ Ke1 Rc2 Rf8 Nb5 Bh5 Rc4 Bfg4 Rb4 Rb8 Rb1 a1R Nc3 Nd1 Rb2 Ra8 Rc2 Nb2 Ne2 Qe4 Rcc4 Qh1 Nc3 Qh4 Rgf7 Bb7 Rg7 Rfb8 Rh6 Bc8 Rhg6 Rb6 Rgf6 Rbb8 Rbb6 Be2 Rdc6 Nb7 Be7 Nc5 Rcd6 Beg4 Rbb4
2b1Nr2/1NkNpBKb/2q4Q/2P1Rp2/PBn3n1/n2q2r1/1q3R2/1N1N3n b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 dxe3 g4 g5 b5 h5 f3 Bh6 gxh5 g4 b6 Bg5 f4 axb6 fxg5 b5 Be2 b4 Bd3 Ra5 Bf1 Ra8 Ke2 f5 a4 d5 h4 Kd7 c4 b5 g6 g3 Kf3 g2 Kf4 e2 Kg5 e1N c5 b3 h6 b4 h5 b2 g7 d4 Kg6 d3 h7 b3 h6 d2 Qh5 d1B Rh2 Nc6 Bd2 Nf6 g8N Kc7 Nh3 Ne5+ Kg7 Nfg4 Nf2 g1Q Bc4 N1d3 Bb4 Qh1 Nf6 Rf8 h8N Qc6 Bf7 Nc4 h7 Bf3 Nd1 Ndf2 Nd7 Nh1 Rc2 Bd5 Rf2 Rb8 Qh6 Rb7 Bh5 Bg8 Nf7 Rb6 h8N Bh7 Nd6 Rb5 Nd2 b1Q Bf7 b2 Nb7 Qa2 Rc1 b1N Rc2 Nba3 Nb1 Qb3 Rce2 Qb2+ Re5 Rb6 Bd5 Ra6 Nf7 Rb6 Nfd6 Rb5 Bd2 Rb3 Bf7 Rg3 Bb4 Qe8 Ne4 Qd6 Nef6 Qd3 Nb6 Qb5 Nbd7 Qc6 Ne8+
2B2bRb/Pn3rP1/BKNq3q/pRBkn3/6b1/2B1r3/3pNQ2/1b2n2B b - - 0 1 illegal: No possible last move
2N1R2r/2NB1bQk/2r1bn1b/P1PbK1pn/qR1BR3/p7/n3R3/2nR4 b - - 0 1 legal: proof: g4 f5 a4 h5 gxh5 a5 d4 c5 Qd3 cxd4 Qa3 f4 b4 axb4 e3 bxa3 exf4 Ra6 f5 Ra8 Kd2 Kf7 Kd3 e5 Ke4 g5 f4 Kg7 c4 b5 h4 b4 c5 d6 f6+ Kh7 a5 d3 h6 d2 h5 d1N f7 b3 f5 b2 f6 Qd7 Nf3 Be7 f8Q Qa4+ Nd4 Be6 f7 Ra6 Be3 Rc6 Ra2 Nd7 Nd2 b1B+ Bd3 Bc2 Nc4 Bb3 Nb5 Bf6 Rb2 Bg7 Bd4 Bd5+ Kf5 e4 Nb6 e3 Re2 Nc3 Rd1 Na2 Nc7 Ngf6 Bb5 Bbc4 Nc8 Bb3 Rc2 e2 Rb2 e1N Re2 Nd3 Re4 Ra6 Bc6 Ndc1 Bb5 Ne5 Bd7 Ned3 Re2 Nf4 Re4 Bb7 Re2 d5 Ke5 Rc6 Re4 Rg8 Re2 Kh8 h7 Bh6 Qd8 Kg7 f8R Rh8 Re8 Ba8 Kf5 Bc4 R8e4 Bb3 Ke5 Bb7 Bb2 d4 Bc3 d3 Bd4 d2 Qe8 Rf8 h8R Bf7 Qe7 Rd8 Re8 Kh7 Qf8 Be6 Rg1 d1B Rf1 Bdb3 Rd1 Bg7 h6 Bbd5 Rh1 N4h5 Rd1 Kg6 h7 Bh6 h8R Bb3 Rg8+ Kh7 Nd6 Ra8 Rb8 Bbd5 Nc8 Ba6 Rb4 Bac4 Qd8 Bf7 Re8 Bde6 Qe7 Bcd5 Qf8 Bf5 Re6 Nf4 Nb6 Rc8 Qd6 Rf8 Re8 Bf5e6 Nc8 Rh8 Qf8 N4h5 Qg7+
1R3q2/1Q1Pq3/B1r1nk1N/1Rp5/1prn1BbK/1P1nR1rN/R6n/R4n2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 h4 g5 e3 fxe3 a4 gxh4 a5 b5 Ra3 Bc5 Ra1 Bb6 axb6 Bb7 Nf3 Ba6 Ng1 Bc8 d4 Ke7 g4 h5 b7 f5 b3 a5 d6+ Kf6 d5 c5 d7 b4 d6 e2 Kf2 e1N Ra4 h3 Kg3 h2 Qc2 f4+ Kh3 f3 Qa2 f2 Bd3 f1N Bh7 h4 Bd2 Na6 b8R Qe7 d8R Nd3 Bf4 Nc7 Nf3 Nh6 Nc3 Ne6 Re8 Rg8 Nb5 Ra6 Qg2 Rc6 Ra2 a4 Ng1 a3 Nd4 Rg6 Nf5 Rg7 Rc2 a2 Rb5 a1N Ra2 Nc2 Qe4 Ncd4 g5+ Kf7 g6+ Kf6 Qg2 Ng4 Nh6 Rg8 g7 Bd7 Nf3 Bc8 Ng5 Qf8 Rg1 h1Q+ Qh2 Qd5 Qg2 Qe4 Rh1 Ngh2 d7 Ba6 Bg6 Qe5 Bh5 Qed6 Be2 Qde7 Rbb8 Bc4 Rb5 Bd5 Rg1 Bf3 Qh1 Ne3 Rga1 Nef1 Reb8 Bh5 Kg2 Bg4 Nh3 Rh8 g8R Rh7 Rg5 Rg7 Re5 Rg6 Re3 Rg7 Nf2 h3+ Kg1 Bf3+ Qg2 Rg3 Kh1 Bg4 Qe4 Rb6 Qb7 Rc6 Rc2 Ne1 Rd3 Rg2 Rb6 Nhf3 Rca2 h2 Re3 Rg3 Ba6 Nd3 Rb5 Rg2 Nh3 Rc2 Ree1 Rc4 Kg2 h1R Re3 N3h2 Rba5 Nd2 Kg3 Rg1+ Kh4 Ndf1 Rb5 Rg2 Rd1 Rg3 Rda1
3Q3R/PbnB4/4NpR1/2RP1B1K/3rRbNb/2b2p1R/2qb2rb/2q4k b - - 0 1 legal: proof: f4 d5 g4 a5 b4 h6 bxa5 f6 c4 dxc4 g5 Kd7 g6 Nc6 Ba3 Ne5 Bc5 Nf7 gxf7 e5 Bf2 exf4 Bh4 Bb4 Bg5 hxg5 Nf3 Bc5 Ng1 Bf8 Kf2 Kc6 Kf3 Kd5 h4 b5 d4 c5 a4 c3 h5 g4+ Kg2 Ke4 e3 g5 a6 g3 a7 c2 h6 c1B a5 g4 a6 c4 h7 c3 Ra4 b4 Rh6 b3 Rh1 c2 Na3 b2 Rh5 b1Q Nc4 Bb7 Nf3 Qc7 Rc5 Bd2 Nce5 Rd8 a8R c1B a7 Qc2 Rc8 Bd6 f8R Ne7 Rg8 Bb2 Rg6 Rhg8 h8R Nd5 Rh3 Bbc3 Bb5 Rg7 Bd7 Qc6 Rac4 Nc7 Be6 Rdd7 Rch8 Rd8 Nh4 Qc1 Nf5 Qa4 Bc8 Qac2 Ra4 Rgg8 Ng7 Rd7 Ne6 f3+ Kh1 g2+ Kh2 g1B+ Kg3 Bh2+ Kh4 g3 Kh5 g2 Ng4 g1B Rb4 Kd3 e4 Bdf4 e5 Ke4 Nd8 Rd6 e6 Bf2 e7 Bh4 e8B Rg7 Bed7 Rd5+ Ne5 Ke3 Ne6 Kf2 Ra4 Rd6 Ng4+ Kg2 Rac4 Bde1 Rb4 Kh1 Qd3 Ra6 Qd2 Ra4 d5 Rg8 Re4 Rd4 Qe2 Bcd2 Qb5 Bc3 Qb6 Bed2 Qd6 Rg7 Qf8 Rg8 Qd8 Qa1 Bc6 Bd6 Nh6 Na8 Rg7 Rc4 Nf8 Nc7 Bf5 Rd4 Bcd7 B6f4 Ne6 Qe1 Re7 Rg6 Rg7 Rg2 Rg6 Qec1 Ng4
3q2rn/6q1/1R1r1rPR/NKN1q2P/3p2NB/4rQB1/b5p1/1nqN2kN b - - 0 1 legal: proof: e4 b5 d4 d5 f4 g5 a4 gxf4 axb5 c5 e5 cxd4 Bc4 Bg7 Bf1 Bh6 Bd3 Bg5 Kd2 Bh4 Bf1 Be1+ Ke2 Bb4 Kf2 Bc5 Ke1 Bd6 exd6 h5 g4 Bb7 g5 Ba6 Be2 Bc8 Bg4 hxg4 Kd2 Kd7 Kd3 Ke6 h4 Kf5 c4 a5 b4 e5 h5 e4+ Kd2 a4 d7 a3 c5 a2 c6 e3+ Kd3 f3 g6 Kf4 b6 Kg3 b7 Kf2 c7 f5 b5 e2 b6 e1Q Bg5 g3 Qb3 f4 Qb5 g2 Be7 Nh6 Nc3 Nf7 Qb3 Na6 b8B Qe5 b7 Re8 Nge2 Nh8 Rhb1 Qg7 Ng3 Nc5+ Kc2 Na4 Kd3 Qe5 Nd1+ Kg1 Bh4 f2 Nh1 f1R Qa3 f3 Rb6 f2 Qf8 Qg3+ Qf3 Nc3 Rab1 a1Q R1b3 Qdg5 d8N Q3e5 Ne6 Nb1 Nc5 Be6 c8N Qd8 Nd6 Rg8 Nc4 Ra3 Na5 Qg7 Ke2 d3+ Ke3 d2 Kd3 Qab2 Bbg3 Qbe5 b8N d4 Rc3 Ba2 Nbd7 Re1 Rcb3 f1R Kc4 Re3 Nf6 Rf2 Ng4 Rf1 Qc6 Rf6 Kb5 Rd6 Qa8 Rf3 Rb4 Rff6 Qf3 Re3 Rb7 Qgf8 Rh7 Qg7 Nc3 d1Q Rh6 Qe1 Nd1 Qd2 Ka4 Qb2 Rb6 Qc1 Kb5
1k5n/pBb1n1b1/3Rqp1B/1P6/q1BNrrb1/2K1Bpn1/6PB/Q2N2R1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 Qc2 gxh4 Qa4 h3 Qd1 h2 Qa4 Qg5 Nf3 Qd8 Rg1 h1Q Qb4 Qh2 Rh1 Qg1 Qa3 Bh6 Qf8+ Bxf8 b4 Kd7 d4 h5 Kd2 c5 e4 Kc7 b6+ Kb7 b5 c4 d6 h4 e5 h3 e6 h2 d5 f6 d7 Bg7 d6 Qe8 d8B Nd7 e7 Ne5 d7 Rh4 Nd4 f3 Kc3 Nf7 Ra6 Kb8 b7 Nh8 Bb6 Rf4 d8Q Qf7 e8B Ne7 Bd2 Qe6 Bc6 Qf2 Qe8 Qh4 Rg1 h1N Qh5 Ng3 Qe5+ Qd6 Qe1 Bg4 Be4 Qe5 Bc5 Qe6 Rd6 Kc7 Be3 Re8 Ba3 Kb8 Bac1 Kc7 b8B+ Kc8 Kb4 c3 Bc4 c2 Bcd2 c1B Nc3 Bb2 Nd1 Bc3+ Kb3 Ba5 Bc1 Bd8 Qa5 Bc7 Qa1 Qh7 Bc6 Qc2+ Kb4 Qa4+ Kc3 Re4 Bh6 Rf4 Be3 Bd8 Rd7 Bb6 Be5 Bc7 Bb7+ Kb8 Rd6 Rd8 Ra6 Rd5 Bd6 Re5 Rb6 Ree4 Be5 Qf7 Rd6 Qe6 Bc1 Ne2+ Kb2 Rf5 Bh2 Ng3 Bce3 Rff4 Kc3
3BRN2/br2b1qk/n4r2/3R1Pp1/p2N4/2N3pr/NPnN4/bb2QBK1 b - - 0 1 legal: proof: c4 b5 e4 d5 a4 bxa4 d4 h5 g4 f5 exf5 hxg4 cxd5 c5 Bh6 cxd4 Bd2 Qd6 Bc1 Qd8 h4 Kf7 f4 g5 Kf2 Kg7 h5 e5 f6+ Kh7 d6 a5 f7 e4 h6 e3+ Kg2 d3 d7 g3 Rh2 d2 Nc3 a3 Ra2 e2 Qe1 d1R Be3 Ra6 Nf3 Ne7 Nd4 Qc7 d8N Bf5 Kg1 Bb1 f5 Nd5 N8c6 Be7 Nb4 Rf6 Ra1 a4 Nba2 Na6 f8N+ Kg8 Rh4 Ndb4 Re4 Nc2 h7+ Kg7 Re5 Qd7 Rd5 Qc7 Qf2 e1B Bf4 Qb7 Bc7 Bd2 Bd8 Be3 Nc6 Ba7 Nd4 Rd2 Qe3 Rh2 Qe1 Rg8 h8N Rh3 Nf7 Qc7 Ne6+ Kh7 Nd6 Rg7 Nde4 Qe5 Nb4 a2 Nd2 Bd6 Qc1 Rb7 Qe1 Kh8 Nf8 Qe7 Ne2 Qg7 Nc3 Be7 Qd1 Bd6 Ne6 Kh7 Qc1 Ne1 Qd1 Bc2 Rc1 a1B Nba2 Bb1 Nf8+ Kh6 Qe2 Nc2 Re1 Bdc5 Qf2 Bd6 Re8 Be7 Nfe6 Kh7 Nf8+ Kg8 Qe1 Kh8 Ng6+ Kh7 Nf8+
b1q2r2/K1bbP2p/1Nqp4/2knnpR1/1b3N2/NQ6/4P2B/1B2NqNR b - - 0 1 legal: proof: h4 e5 a4 a5 f4 b5 axb5 c5 d4 g5 Na3 gxh4 Rh2 c4 Nb1 exd4 Qd3 cxd3 Rh1 Ra6 Bd2 Re6 Bc1 Re5 fxe5 Bh6 Bg5 Bg7 Bc1 Bf8 Kd2 Ke7 b4 f5 g4 d6 c4 h3 g5 a4 e6 h2 g6 a3 g7 a2 c5 Nh6 g8N+ Ke8 b6 Bb7 b5 Qc7 c6 Nd7 e7 Nc5 Bg2 Nd7 Na3 Ba8 b7 Ne5 b8Q+ Qc8 b6 Nhg4 b7 Bg7 c7 Kd7 Be4 Ne3 Nf6+ Ke6 Nd5 Rf8 Rb1 a1B Nf4+ Kd7 Bb2 Nd5 Bc3 Kc6 Rc1 Qd8 c8N Kc5 Nb6 Qc8 Rf1 Bh8 Rf3 Bf6 Rg3 Bh4 Rg5 Bf2 Nc2 Bb2 Nc4 Ba3 Ne1 Bb4 Na3 Be3+ Kd1 d2 Kc2 d3+ Kb3 Bf2 Ka4 Bd4 Ba1 Bdc3 Bb2 Ba5 Bc1 Bcb4 Bb2 Bc7 Bc1 Kd4 Kb5 d1B Ka6 d2 Bb1 Ba4 Ka7 Kc5 Bb2 Ng6 Be5 d1Q Neg2 Qf1 Ne1 Rf7 Nec2 Bd7 Ne1 Qh8 Qg8 Rf6 Qe6 Qc8 b8N Rf8 Qf7 Nb6 Qb3 Nd5 Nfh3 Bd8 Bg3 Bc7 Nf4 Ne5 Nc6 Nf3 Na5 Ne5 N5c4 Ne3 Nb6 N3c4 Ngf3 Ne3 Rg1 h1Q Bh2 Qhg2 Nh4 Qc6 Nhf3 Nd5 Rh1 Rf7 Ng1 Rf6 Neg2 Rf8 Ne1
nNB3q1/B1Bpq3/rp1P3K/1P6/1Rq2kNB/1np4R/qBb5/2r3Qn b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 h5 a5 hxg4 a6 Be7 axb7 Bf8 b4 Rh3 b5 Rh5 b6 Na6 b8B Rh7 b7 Rh8 c3 Rh3 Qb3 Rh8 Qb6 Bb4 cxb4 axb6 Kf2 Ke7 e4 Kf6 d4 Kg5 e5 f5 d5 c5 e6 g3+ Kf3 g2 h3 c4 b5 c3 d6 Nf6 e7 Nc5 e8Q Nb3 Ra3 Nd5 Qg8 Nc7 Nd2 Qe7 Bb2 Ra6 Ne2 g1Q Nd4 Qh2 Nc6 Na8 Bc7 g6 b8B Bb7 Bg2 Rh6 Kf2 f3 h4+ Kf4 h5 g5 Ba7 g4 Nb8 Be4 Nc4 Bc2 Ra4 Re6 h6 Re1 h7 Rd1 h8B Rc1 Re1 g3+ Kf1 f2 Rb4 Be4 Ke2 f1N Bd4 Bc2+ Ne5 Qh8 Bd5 g2 Bb7 g1Q Bc8 Qgh2+ Qg2 Qg8 Bf2+ Be4 Bh4 Ng3+ Kf2 Nh1+ Ke2 Qh3 Qg1 Qh2+ Kf1 Qc2 Ng4 Qb1 Ke2 Qa2 Rd4 Qe5 Rd3 Qe7 Rh3 Bc2+ Ne3 Ke5 Kf3 f4 Ng4+ Kf5 Bg3 Kg5 Re4 Kf5 Rb4 Kg5 Kg2 f3+ Kh2 f2 Bh4+ Kf5 Kg2 f1Q+ Kh2 Qfc4 Kg2 Ke6 Kf3 Be4+ Kf4 Kd5 Bf6 Bg6+ Kg5 Ke4 Kh6 Kf4 Bh4 Bh7 Bf2 Bc2 Bh4
3QR1Rq/N1pN3B/1rB4b/p2q1bP1/p2q1n2/3Bn1P1/1k1B3K/B2b1q2 b - - 0 1 illegal: No possible last move
q1QR2R1/1R5P/rpb1B1K1/1R2p3/N3Rq2/bP1b1Bk1/4pbq1/N4r1r b - - 0 1 legal: proof: d4 f5 a4 c5 e4 fxe4 f4 cxd4 g4 b6 g5 h6 a5 Na6 f5 Nf6 gxf6 Nc5 a6 Nb7 Bg5 hxg5 axb7 Rh6 Ba6 Rh4 Bf1 Rh8 Ke2 Kf7 b8R a5 c4 d5 h4 e5 c5 g4 h5 g5 c6 e3 Kd3 g3 h6 g2 b3 g4 c7 a4 Qe1 a3 Qd1 e2 Rh3 g3 Qc2 a2 Qd1 Ra6 Qc2 Ba3 Nf3 g1B Rh4 g2 Re4 Qf8 Ne1 Bf2 Nc3 g1Q Na4 Bb7 c8B Bc6 Bg2 Rh7 Rc1 a1Q Bf3 Qg2 Bd7 Rh8 Rb7 Qa8 Rd1 Qc1 h7 Qf4 Rc1 Rg8 Ra1 Rg5 Qc5 Rh5 Nc2 Rh1 Rc1 Rf1 Na1 Rh1 Rc4 Rf1 Rb4 Rh1 Kc2 d3+ Kc3 d2 Kd3 d1B Rb5 d4 Be6+ Ke8 f7+ Kd8 f6 Bc2+ Kc4 d3 Kc3 d2 f8R+ Be8 f7 d1R Rg8 Rdf1 f8R Bb1 Bd7 Bd3 Qc8+ Ke7 Be6+ Bd7 Rd8 Kf6 Rge8 Kg5 Rh8 Kh4 Rhg8 Bb1 Kc4 Bd3+ Kd5 Bb2 Kd6 Bc6 Ke7 Ba3+ Rc5 Qfg4 Kf7 Kg3 Rb5 Qg5 Rgf8 Qh4 Kg6 Qf4 Rg8
1r3N2/3BRq1b/KQ1q1Np1/3n1NP1/2n3pB/nq1NR3/kPp5/q1Nn4 b - - 0 1 legal: proof: f4 a5 c4 d5 g4 dxc4 d4 h5 e4 e5 g5 b6 d5 Bc5 Qg4 hxg4 a3 Bd4 a4 b5 d6 bxa4 Nc3 Ra6 Nh3 Rc6 Ng1 Rc5 Nb1 Rd5 exd5 e4 Kd1 Na6 Ke1 Be5 fxe5 Nb8 Kd2 Kd7 Kc3 f5 h4 c5 h5 a3 h6 f4 h7 a4 Be2 a2 Rh4 a3 Rh3 f3 Rh6 f2 Rh2 f1N Bd1 e3 Re2 Ne7 Bb3 Nbc6 Nd2 Na5 Ndf3 g6 Re1 e2 Bf4 Ne3 Nh4 Qc7 Rad1 a1Q Rd3 a2 Nf5 Qd1 Bg3 a1Q Bh4 Bb7 Bc2 Rb8 h8N Bc6 Ba4 Qb3+ Kd2 Qa7 Nf7 Nd1 Re3 c3+ Kd3 Qc7 Bb5 c4+ Kd4 c2 Kc5 c1Q e6+ Ke8 Ne5 c3 Ba4 Nc4 Nd3 Qd2 d7+ Kf8 d6 Nd5 d8N Qf7 e7+ Ke8 Nh3 Kd7 e8N Bb5 Ng1 Bc6 Rf1 e1N Ne2 Nc2 Ne6 N2a3 Re1 c2 Bb5 Kc8 d7+ Kb7 Ba4 Ka6 Nf6 Ka5 Nf8 Bb7 Bb5 Ba6 Bc6 Bb5 d8Q+ Ka4 Bd7 Bc6 Bc8 Bd7 Re7 Be6 Qb6 Qf4 Nec1 Qe5 Re3 Qf4 Ne2 Qd6+ Kd4 Qbb4 Bd7+ Kb3 Be8 Ka2 Bc6 Qb3 Bd7 Qf4+ Kc5 Ra8 Kc6 Qd6+ Kb7 Rb8+ Ka7 Qh7 Bc8 Bg8 Bd7 Qf7 Ka6 Bh7 Nec1+
1N6/Q3n1b1/2p2PN1/2b1PR2/n1KBppn1/4Nqp1/4BrN1/r3bRNk b - - 0 1 illegal: No extended proof kernel
1RN3KN/B3b1p1/1Q4Pp/4N1B1/b1P4N/1p1n2R1/2bp1qnk/1Nrrn3 b - - 0 1 legal: proof: g4 a5 d4 f5 b4 axb4 Bg2 c5 Bd5 cxd4 gxf5 e5 h4 Qg5 Bc4 e4 Bd3 exd3 hxg5 Ra3 Qd2 Ra5 Qd1 Ra8 Kd2 Kf7 c4 b5 a4 d5 f4 b3 e4 h6 a5 b4 g6+ Kf6 a6 b2 a7 b3 e5+ Ke7 e6 Kd6 f6 Nc6 e7 Bd7 f7 Nf6 f5 Ke5 e8N Kf4 Nd6 Kg3 Nf3 Be7 f8N Nh7 f6 Nb4 f7 Ba4 Nd7 Rhd8 f8B Ng5 Rg1+ Kh3 Nh4 Kh2 Ne5 Rd7 Na3 b1B Rg3 Bc2 Ndf7 Re8 a8N Red8 Ke1 d2+ Ke2 d3+ Ke3 d4+ Kf4 Nf3 Kf5 Ne1 Ke6 Rd5 Qg4 d1N Bg5 d2 Nb6 d3 Nb1 Ne3 Qd4 d1Q Nh8 N3g2 Kf7 Qd2 Kg8 Qf2 Qc5 Rd4 Nc8 Re4 Qd4 Re2 Qc5 Rd2 Qb6 Rd1 Ra2 d2 Ra3 Rd3 Ra1 Rc3 Ra3 Bd7 Ra8 Nbd3 Rb8 Ba4 Na3 Bf6 Bc5 Be7 Bce3 Bb1 Bc5 Rcc1 Bd4 Bc2 Nb1 Bb5 Qa5 Bc6 Ba7 Ba4 Qb6
R4q2/nK5B/n2rN2P/1b3n1R/kpR1pPN1/1p2pr2/2R1pB2/5RrQ b - - 0 1 legal: proof: e4 b5 g4 e5 b4 h5 gxh5 a5 c4 f5 c5 fxe4 Qa4 e3 Qb3 e4 Qd5 Bd6 Qc6 Be5 Qh6 Bd4 Qd6 axb4 Qe6+ dxe6 Be2 b3 Bf1 Bc3 Nh3 Ba5 Ng1 Bb6 cxb6 Rh6 Bb2 Rh7 Bc1 Rh8 Ke2 Kd7 d4 Kc6 f4 g5 h4 e5 a4 b4 h6 g4 d5+ Kc5 b7 g3 d6 g2 h5 c6 a5 Kb5 a6 c5 d7 c4 h7 c3 a7 c2 Nc3+ Kc5 Nd1 Kb5 Nf2 Ne7 Nf3 g1R Nd4+ Kb6 Ne6 Kb5 Ng4 Na6 b8R+ Qb6 d8R Bb7 Rbc8 Qc5 Rd4 Nc6 Rc4 Qf8 h6 Rg8 h8Q Rg3 Rb1 Ka4 Rh5 Rf3 Bg2 Rb8 a8R Na7 Qg7 Bc6 Qb7 Bb5 Bb2 Rh3 Bd4 Rf3 Rf1 Rg7 Qd5 Rb6 Bc5 Rd6 Qd1 Nc7 Qe1 Rg6 Qh4 Rg7 Qh1 c1N+ Ke1 e2 Qg1 Nd3+ Kd2 Nd5 Nf6 Rf2 Qh1 Ne7 Ke3 Rg3+ Bf3 Rg1 Bg4 Ng8 Rc2 Ne7 Bd4 Nc5 Bf5 Na6 R8c4 Nc7 Ng4 Na6 Bh7 Rf3+ Kd2 Nd5 Bf2 e3+ Kd3 e4+ Kd4 Ne7+ Ke5 Rb6 Kd4 Nf5+ Ke5 Nb8 Kd5 Rd6+ Kc5 Rd4+ Kb6 Rd6+ Kc7 Na6+ Kb7
rQ4NK/P2bb1B1/p1NnPpNp/rp4Np/N1R2p2/5B2/Rr1k4/2q5 b - - 0 1 legal: proof: b4 e5 f4 exf4 h4 d5 c4 g6 cxd5 Qf6 b5 Qa6 h5 gxh5 b6 Nc6 a3 Qc4 a4 a6 a5 Na7 bxa7 Qa2 Nh3 Qxa5 Ng1 Qa2 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 c5 d4 b5 e4+ Qe2 d6 h6 d5 Be7 d7 Bg5 d8N Rh7 d6 Kb4 d7 c4 Bb2 c3 Ne6 c2 d8N c1R Bg2 Rc7 Qd6+ Kb3 Nf8 Kc2 Nf3 Nf6 Nc3 Qf2 Rhc1+ Kb3 Ra2 Ne8 Na4 Rd7 Nc6 Rc7 Rc4 Qc2 Ng6 Be7 Ng5 Bd7 Bf3 Qc1 Ba1 Rcc8 Qb8 Nd6 Bb2 Rg7 Bc3 Bf8 Kf6 Rg8 e5 Rg7 Ra1 Kc2 e6 Kd3 Bb2 Kd2 Ra2 Rd8 Nh7 Rc8 g5 Rg8 Nge7 Rg7 g6 Rg8 g7 Rc7 Ng6 Be7+ Ke5 Rgc8 g8N Rd8 Nd4 Rc6 Ng5 Rcc8 Rc3 Rc4 Nc6 Rb4 Rc5 Rb3 Rc4 Ra3 Nb6 Ra5 Na4 Bf8 Kf6 Be7+ Kg7 Rc8 Ra3 Rc7 Kh7 Rc8 Bg7 f6 Nb4 Rc5 Kh8 Rd5 Ra1 Rd3 Ra3 Rb3 Ra2+ Rb2 Nc6
QK2nb1b/2nR1R1r/3qnr2/PnR2bBP/5R1N/1Nn2Rrn/2q1B2k/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kf6 h4 Ke5 a4 f5 d6 c5 h5 b5 d7 g5 a5 f3 Kg3 f2 d3 b3 Rh3 b2 Bg2 f1N+ Kf2 b4 Qe1 c4 Rh2 c3 Ra4 b3 Bd2 f4 Rc4 c2 Ne2 c1Q Rb4 f3 Qd1 g3+ Ke1 g4 Nd4 f2+ Ke2 Ne3 Bf3 Kf4 e5 f1R e6 g2 e7 Kg3 e8R g1B Rf2 Ng2 Re3 Na6 Nf5+ Kh2 d4 g3 Kd3 Rh7 Ke4 Qc2+ Ke5 Nf6 d5 Nc7 d6 Nfe8 Be2 Rb8 Rff3 Nf4 Nh4 g2 Rc3 Nfe6 Rbf4 Be3 Qc1 g1N Rc5 Nh3 Rf7 Qe7 d8R Rb6 d7 Rg1 Qe1 Rg3 Qc1 Beh6 Bg5 Rc6 Nd2 b1N Qf1 b2 Nb3 Nc3 R3f4 b1N Qf3 Rb6 Qa8 N3b5 Rf3 N1c3 R7f4 Bb7 Rb8 Bd5 d8R Be4 Rd7 Qd8 Rb7 Bhg7+ Rf6 Bh8 Rf7 N6g7 R6f4 Rf6 Ra7 Nge6 Rb7 Na6 Rbe7 Bf5 Rd7 Ne4 Kd5 Nac7+ Kc6 Nec3 Kb7 Qe7 Kc8 Qd6 Kb8
5k2/5r1n/1Nrn1rb1/KRQ2R2/2qBnNr1/1q1nP3/2RR1b1P/R2r1Bb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 c4 f5 b4 d5 b6 g5 b7 g3 b5 f3 b6 g4 c5 d3 Kc3 d2 c6 f4 c7 a4 Ba3 d4+ Kc4 f2 Kb5 d3 Nc3 f3 Nb1 g2 Be7 g3 Nh3 g1R Qe1 d1N Nc3 a3 Ra2 d2 Bg2 f1N Ne4 f2 Nc3 Ra6 Bd6 Nh6 Bc5 Nf5 Nb1 Nb2 Be3 d1Q Bd5 g2 Bc1 Rh7 Be3 Bc5 Bd2 N1g3 Be6 f1R Be3 Nd7 b8R Qb3+ Qb4 Nf8 b7 Ne4 Bd4 Rf7 Nf4 Nh7 Nc3 Kf8 Na4 Qh4 Bc4 Rc6 Nb6 Nfd6+ Ka5 Nd3 Rd2 a2 Ra8 Rf3 b8R a1R+ Qa3 Rgd1 Rf1 g1B Rb7 Qg4 Raa7 Bd7 c8R+ Be8 Ba6 Rac1 Qb4 Rc4 Qb5 Ba3 Qc5 Rf6 Rcc7 Bg6 Bb5 Bb2 e3 Bc3+ Ka6 Rb4 Ka5 Qge6 Rff2 Qec4 Rf7+ Kg8 Rc2 Be1 Rfd2 Bef2 Ba6 Re6 Rf5 Rf6 Na4 Kf8 Rb5 Rg3 Nb6 Rg5 Re5 Rgf5 Rd5 Rf7 Re5 R5f6 Rf5 Rcc7 Ra8+ Rc8 Ra7 Rc6 Ne2 Nf4 Bc3 Ng3 Bb7 Qe6 Ka6 Rc8 Bg2 Nd3 Bf1 Rg4 Nf4 Ne4 Bd4 Rcc7 Nbd5 Rc8 Kb6 Rcc7 Ra1 Rc8 Ka6 Rc6+ Nb6 Qec4 Ka5
n1n2RbK/3r4/N3QNP1/1R2nq1N/4n3/2r1qnNN/P2b2bk/B4brB b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 b5 g4 c5 d4 f5+ Kf3 h5 e4 c4 g5 c3 g6 c2 Bc4 b3 Qf1 b4 Qd3 h3 Qc3 h4 Bb5 h2 Ba3 c1N Bd7 b2 Bc6 h3 Ba4 Nd3 Qd2 Ne5+ Kf2 f3 Kg3 f4+ Kf2 Qe7 Qe3 Rh7 Bc6 Be6 Nd2 b1R Bb2 b3 Nf1 Na6 Ng3 Nc7 Bc3 Rd1 Rb1 Ra3 Ba1 b2 Bb7 Rc3 Qe1 Kd7 d6 Na8 d5 Bh6 Qe2 Qe8 Qe3 Ne7 Qe1 N5c6 e5 Nc8 Qe3 Bg8 e6+ Kd8 e7+ Kd7 Qe2 Ne5 Qc4 Qf8 e8N Qf5 N1e2 Qe6 Nh5 Rg1 Neg3 Qe7 Rf1 b1N Qe2 Nd2 Nef6+ Kd8 d7 Kc7 d8N Kd6 Bc6 Qa7+ Qe3 Rd7 Ne6 Qa3 Nc5 Ne4+ Ke1 f2+ Ke2 Qb3 Rb1 f1N Na6 Nfd2 Qb6 Qa3 Rb5 Ndf3 Qe3 Nf7 Qb6 Ke5 d6+ Qc5 Nf1 Kf5 Nfg3+ Kg5 Bb7 Qf5 Qe3 Kh4 Bd5 Rb7 d7 N7e5 d8N Rd7 Ne6 Rd1 Rf1 h1Q Bb2 h2 Ng5 Qg1 Nh3 h1B Ba1 Bg2 Qb6 Bg5 Qe6 Qc5 Rf2 Rg1 Nb4 Nfd2 Nh1 Nf7 Bc6 Ned6 Be4 Qfd5 Nh7 Bf1+ Ke1 Bh6 Bg2 N6e4 Na6 Qcd4 N1g3 Qb6 Bh1 Bg2+ Ke2 Qbc5 N3g5 Qcd4 Rf1 f3+ Ke1 f2+ Kd1 Qb6 Ke2 Rc5 Ke3 Rc3+ Kf4 Qdc5 Rb2 Qf8 Kf5 Ne5+ Nf7 Kh3 Rb5 Qg7 Nfg5+ Kh2 Nh3 Bf4 Re1 Be3 Re2 f1B Rf2 Qf8+ Qf7 Ned6+ Kf6 Qd4 Rf5 Ndf3 Rf4 Bd2 Rf5 Qh6 Qe6 Qd3 Rf4 Qc2 Rf5 Qe3 Rf4 Ndf7 Kg7 Nfd6+ Kh8 Qce4 Rf6 Qf5 Rf8 Ne4 N7f6
2nBb1K1/r1q1B1Rn/NPn1B3/b1P2bqr/bqR4B/k6Q/N1b3B1/3n4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 a5 h4 f5 b4 g5 e4 d3 c3 d2 b6 a4 h5 a3 b7 g3 h6 g2 h7 a2 b5 f3 b6 f2 Qc2 d1N Na3 g4 Bb2 g3 Rh2 f4 Nh3 g1Q Qb3 f3 Bd3 f1B Rc1 a1Q Nb1 g2 Nf4 f2 Ne6 Qc7+ Nc5 Qa5 Ba3 Nc6 b8B Nge7 Rh1 Ra7 Na6+ Nb4+ Kd4 Bh6 c4 Bd2 Bc2 Bd3 e5+ Kc6 e6 d5 Rh3 f1B+ Re3 Bfe2 Nc3 Bh5 Na2 Be8 Qc3 Be1 Bb3 Bc2 Qd3 Bcd7 Qc3 Nc8 e7 Bdf5 Qd3 Nf2 Rg3 Nd1+ Qe3 Bd2 Rg7 Qe1 Qh3 g1N c5 Kb5 Bb2 Qeg3 Bc4+ Ka4 Bf1 Qg5 Bg2 Bb1 Rc4 Bbc2 Bc1 Be1 Bf4 Qb5 Bd6 Qa5 Ke5 d4 Qh4 d3 Qh3 Beg6 e8B+ Ka3 Bd7 Nc6+ Kd5 Be8 Be6 Qb4 Be7 Nf3 Bd8 d2 Be7 Rf8 h8B Rf6 Bd8 Rh6 Be7 Rh5 Bd8 Qd7+ Bd6 Qc7 B6e7 Qe3 Rh7 Ng5 Bhf6 Qeg3 Rg7 Nh7 Bh4 Ba4 Qh1 Qg5 Qh2 Nb2 Qh1 d1B Qh2 Bdc2 Qh3+ Bfd3+ Bf5 Nd1 Ke6 Qb3 Bg4 Ba5 Bf5 Qb4 Bg4 Bd7+ Kf7 Be8+ Kg8 Qb1 B2f3 Qb4 Be6 Bf5 Bg2+
1kq2R2/2P1K3/r2rbnN1/4nNBB/2N1b1PQ/2R2Nb1/2rbn1n1/N2q3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 h5 b4 f5 c4 a5 c5 h3 e5 f3 e6 h4 e7 h2 c6 f2 Nd2 f4 Nb1 h3 Qb3 a4 Bb2 a3 Nf3 a2 Nbd2 Be6 Nc4 Bh6 Rc1 a1B Rc3 Nf6 Bc1 Nbd7 e8N+ Kb8 b6 Qc8 b7 Ra6 b5 Rf8 Bg2 f1N Ned6 Ng3 Rf1 h1R Nf5 h2 Qb2 Bg5 Qf2 Ne2 Qh4 Bb2 Bd2 Bc1 Be3 Bd2 Rf2 Be1 Rf1 Bg3 Bd2 Ka7 b8N Ka8 b6 Ne5+ Kc2 d3+ Kb3 d4 Kb4 Rd8 Kc5 Rd6 b7+ Ka7 Bc1 d2 Nd7 d1Q b8N d3 Nf8 d2 Nbd7 Ka8 Ng6 Bh6 N3d4 f3 Nc2 f2 Bd5 Bhf4 Na1 Bg5 Re1 f1N Be4 Ne3 Rf1 Ng2 Bb1 Nf7 Nde5 Kb8 Nf3 Ne5 Be4 Qb3 Bc2 d1R Be3 Bh6 Bg5 Rc1 Be4 Qd1 Bd5 Bg8 Bf7 Rc2 Be8 Rd3 Rf2 Bd5 Kd6 Be6+ Ke7 Rd6 Bc1 Bd2 Bf7 Be1 Bg5 Bd2 Nf8 Rg1 Bh5 h1B Ng6 Ne3 Nh2 Be4 Nf3 Rh1 Nh2 Kc7 Ng7 Ne8 Rf8 Nf6 Nf3 Ng2 Nf5 Kb8 c7+
R3k1N1/2b1br2/NP1n2B1/1N6/2b1N2R/b2nK3/1rNPbnpQ/2B1qr1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 c5 e4 a5 h4 g5 b4 f5 e5 a4 h5 c3 e6 f3 b6 g3+ Ke3 c4 e7 c2 h6 f2 b5 f4+ Ke4 g4 b7 g2 b6 a3 h7 g3 Nf3 g1Q Bg2 f1R Nh4 c3 Bf3 g2 Rh3 a2 Ng6 Bg4 Rh2 Nh6 Qe2 Nd7 b8N Ne5 Rh1 Nc4 Rh5 Qh1 Rh2 Nd6+ Kd3 Ra3 Qe3 Rb3 Ba8 f3 Qe1 f2 Qe6 Rb2 Be4 Be2+ Ke3 Bc4 Qe5 Ng4+ Kf3 Qd7 Na3 Qe6 Na6 Rg8 h8N Rg7 Qf4 Rf7 Rh4 Qe5 Bf5 Qe6 Qh2 Qe1 Rb1 a1B Kf4 Rh7 Nf7 Rg7 Ng5 Rf7 Kf3 Ra2 Bb2 c1N Nc2 Nd3 Bc1 Rb2 Ne4 Rb3 Nd4 c2 Rb2 Rb4 Ra2 Rb2 Ra3 Rg1 Ra5 f1B Ra2 Ngf2 Ra4 Be2+ Ke3 Be6 Ra5 Rf1 Ra4 Kd7 e8N Be7 Nec7 Kd8 Ra3 Bc4 Ncb5 Ke8 Ra5 Rb4 Ra2 Bc3 Ra3 Rb2 Ra4 Bb4 Ra2 Bd8 Ne7 Bc7 Bh7 Nb7 Ng8 Be7 Ra5 Nd6 Bg6 Rb4 Bb2 c1B Nc2 Rb3 Ba1 Ba3 Bb2 Rb4 Bc1 Rb3 Nb8 Rb4 Ra8 Rb2 Na6+
bqN2N2/NNNqqqRp/P6Q/1nnB4/1R1b1r2/1r1P2n1/K2Bk2q/2r5 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Kd7 a4 Kd6 g4 Ke5 g5 Kd4 a5 b5 g6 c5 d6 f5 a6 h3 d3 f3 Kd2 b3 g7 f2 e5 b2 Kc2 b4 Kb3 f4 e6 c4+ Ka2 b3+ Ka3 c3 e7 c2 e8N f3 Qe1 h2 Nc3 b1Q Nc7 b2 Qe6 Nf6 g8N Nh5 Na4 Qe7 Bh6 c1R Bh3 f1Q Bg5 f2 Nc3 Nd7 N3d5 Bg7 Ngf6 Rb8 Bd2 Nc5 d7 Rf8 d8N Bb7 Qd6 Ng3 Nd7 Ba8 Bg2 Rf4 Nf8 Qfe2 Bf3 f1Q Qh6 Qd7 Nb7 Qee7 Nb6 Bf6 Nc8 Bh8 Bc3+ Ke3 Ne2 Bd4 Rg1 h1Q Bd5 Qh2 Ra2 Qf3 Bd2+ Kf2 Ra1 Qfh5 Nc3 Qhf7 N3b5 Ke2 Nd8 Qc2 Nba7 Rb3+ Ka2 Qd1 Rf1 b1N Nb7 Na3 Rb1 Nb5 Rh1 Qdg1 Rb2 Qge3 Rg1 Q3e5 Rb1 Nf5 Rg7 Ng3 Ne8 Qb8 Nc7 Rbc3 Rb4 Rb3 Qh3 Qe5 Qh4 Qee7 Qh6
1n2b1q1/K3BNqr/1R2RRBR/bR2b2r/n2nN3/1Q1qq1Pp/Pr4k1/8 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kd6 e4 h5 g3 b5 Bd2 c5 Nh3 f5 Bc1 b3 Qf3 b4 Be3 b2 Qg2 b3 Qh2 c4 Kf3 c3 Ng1 c2 Bf2 c1B Bb5 h3 Be2 h4 Ba6 Nh6 Qg2 h2 Bb7 h3 Nc3 Ra7 Rb1 Bd7 Qf1 Qf6 Qd1 Be8 Be1 Qg7 e5+ Kc7 e6 Kd6 e7 Bd2 Ke2 f3+ Kd3 f2 Kc4 f4 Nf3 Nf5 Rf1 h1Q Ne5 f3 Ba6 Rd7 Kb5 Rh5 Kb6 Qg1 Bd3 Qg8 Be4 Bg7 Bc2 Ne3 Bg6 Nc2 Nc6 Be5 Nd8 Bf7 e8R Ra7 Re7 Be8 Rh7 Re7 Rh6 Rh7 Ra1 b1R Nf7+ Ke7 d6+ Ke6 d7 b2 Ne4 Kd5 Ka7 Ba5 Bc3 Qg7 Re1 f1Q Bb4 f2 Be7 Qd3 Qf3 Qc4 Qb3 f1Q Re2 Qe3 d8R+ Nd7 Rc8 Nb8 Rc6 Qf5 Rb6 Qg4 Qa3 Qcd3 Rf2 Qgg5 Rff6 Qg8 Rfe6 Qf6 Qc3 Qfg7 Qb4 Rd1 Qa3 Rd2 Rf1 b1N Rff6 Nc3 Qb4 Na4 Qb2 Kc4 d5 Nd4 d6 Kd5 d7 Rh2 Qb1 Rb2 d8R+ Kc4 Nf2 Kc3 Rb5 Kd2 Rdd6 Ke2 Qc2+ Kf1 Rdb6 Kg1 Qb3 Kg2 Ne4
1b3q1b/Rr1k3R/n7/nP1nrr1p/3RqR2/1b1NBB1N/Q4q1P/2bR3K b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 d4 g5 f4 e5 Kf2 a5 Kg2 h5 c4 b3 c5 b2 f5 e3 c6 g3 d5 e4 c7 g4 d6 e2 f6 e1Q f7+ Kd7 Bg5 e3 Nc3 b1Q Nf3 a4 Na2 a3 Bc4 e2 Nb4 a2 Bh4 Ra7 Bf6 Na6 Bg7 Rb7 Nd4 Nf6 Nbc6 Nd5 Qb3 Qe4+ Nf3 Be7 f8R Bg5 Re8 Bc1 Re6 Rf8 Bd4 Rf5 Be3 Qf8 Rh6 Qd2 Qa4 e1R+ Be2 Qb2 Nb4 Qbc2 Rb1 a1N Nd3 Nb3 Qa2 Na5 Rf1 Qc5 Kg1 g2 Ng5 Qa7 Bf3 Qc5 Kf2 g1B+ Kg2 g3 Kh1 Qb6 Nh3 Bf2 Bf4 Bd4 Be3 Bh8 Rb4 Re2 Rd4 g2+ Kg1 Ke8 d7+ Ke7 d8R Be6 Ra8 Kd7 c8R Re1 Rcc4 Qa7 Kf2 g1B+ Kg2 Bf2 Rg1 Bg3 Kh1 Bb8 Ra4 Qac5 Ra7 Qc2 Rac4 Qf2 Ra4 Re2 Rd1 Qf4 Bd2 Ree5 Rac4 Q4e3 Rf4 Qe4 Be3 Ne7 Ra4 Bb3 Rd4+ Nd5 Rh7+
3nk1rb/4N1bq/R2r2bP/N2RRR2/4q2r/1B1rBpK1/1q1PRn2/2n1Q3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 c5 e4 a5 h4 g5 b4 f5 e5 a4 h5 c3 e6 f3 b6 g3+ Ke3 c4 e7 c2 b7 c3 b5 f4+ Ke4 g4 b6 a3 Bb2 c1N Rh3 g2 Rg3 c2 Qe2 a2 Bd4 f2 Re3 g3 Kf3 Nf6 Bc5 Qd3 Ba3 Qh7 Bc5 Ne4 Qe1 Bf5 Nh3 g1Q Na3 g2 Re2 Bg7 Nc4 Ra3+ Be3 Rd3 Na5 Nc6 b8R+ Nd8 b7 Bg6 h6 Rg8 Ra8 Qh1 b8R g1R+ Bg2 Bh8 Rb5 f1R+ Kg4 Rf3 Rf5 Rd6 Ra6 Nf2+ Kh4 Rg3 Bd5 Qe4 Bb3 Rh1 Rb1 a1B Rb2 Kd7 e8R Rf3 Ra2 Bag7 Ree5 Rh2 Rd5 Ke8 Ra4 Rh1 Rb4 Rg3 Rbb5 Rf3 Bc5 Rc3 Be3 f3+ Kg3 Rd3 Nf4 Rh4 Rbc5 Na2 Rb5 c1Q Rbc5 Qb2 Rb5 Bf7 Ng6 Nc1 Ne7 Bh5 Rde5 Bg6 Rbd5
2B2qr1/K1NRB2k/Pn1Q1n2/q3bR1b/2Rn3p/5q2/P2b1R1b/r1rR2N1 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 gxh4 Bc4 c5 Bf1 cxd4 Kd2 Kf7 c4 Kg6 g4 h5 f4 d5 a6 e5 c5 b5 g5 b4 f5+ Kh7 c6 b3 c7 b2 f6 h3 f7 e3+ Kd3 e2 Nd2 b1Q+ Qc2 e1B Ndf3 e4+ Ke2 h2 Qc5 d3+ Ke3 d2 Kd4 d1N Ne5 h4 Bc4 e3 Bb3 e2 Qa3 Bd6 f8R Bg4 c8R Bh5 Rf1 Nc3 Ng6 Nf6 Qc5 Rg8 Rc6 Qf8 Ba3 Bd2 Ne7 e1B Rf2 Qf5 Rd1 Na4 Bc4 B6f4 Qd6 Nb6 Kc5 d4+ Nd5 Be5 Nc7 d3 Be6 Bdf4 Bb4 d2 Bc8 Ra7 Kb5 Ra8 Rc5 Nc6 Rc4 Nd4+ Kc5 Nb5 Kc6 Nd4+ Kb7 Rb8+ Ka7 Bg3 Rb1 d1R Ra1 Rc1 g6+ Kg7 Bc5 Bd2 Ba3 Kh8 g7+ Kh7 Rb1 Qf3 Rb5 Qc3 Rd5 Qa5 Rdc5 Nbd7 Rd5 Rbb1 Rb5 Nb6 Bc5 Rh8 g8R Ra1 Rg5 Bgf4 Rf5 Rg8 Rb3 Bg3 Rd3 Bgf4 Nf3 Bg3 Rd1 h1Q Ng1 Qg2 Qc6 Qh1 Be7 Bh2 Qd6 Qf3 Qc5 Nc2 Rd7 Nd4 Qd6
K1n1Rbn1/5b1P/R2qB1Nq/B1PN3b/b2p4/1R4Q1/1rn2krR/2R1q2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kh4 c4 g5 e4 f5 b4 a5 e5 f3 h3 Kg3 c5 f2 e6 f4 h4 a4 h5 f3 h6 a3 e7 d3 e8R d2 b6 a2 b7 Nc6 b8R Nce7+ Ke5 d5 b5 d4 b6 Be6 b7 Bf7 Nh3 Qd6+ Ke4 Nc8 Ba6 f1B Bd3 f2 Ba3 Be2 Bb4 f1Q Bb5 Qe1 Nf4 Kf2 Nc3 g3 Ng6 g4 Qb3 d1B Nd5 g2 Rh2 g3 Rc1 a1N Ba5 Nc2 Bd7 Ra6 Bh3 Rb6 Be6 Qh1 Qc3 Bh5 Ra8 Rb2 b8R Rh7 Ra6 Rh8 Rh4 Qh3 Rb5 g1Q Rb3 g2 Qd3 Qf1 h7 g1R Qc3 Rh1 Qg3+ Ke2 Nde7 Qe1 Nd5 Kf1+ Kd3 Qh2 Kc4 Qhd2 Kb5 Qh6 Qg5 Kf2 Rh3 Qf4 Kc6 Qd6+ Kb7 Ne3 Rbb6 Ba4 Ka8 Nc2 Rb5 Nf6 Rh4 Rg8 Rb3 Rg7 Qe5 Ng8 Rh2+ Kg1 Nge7 Rg2 Ng6 Kf2 Qg3+
1Rrb3n/1BBNNr2/qQ4nP/2b2b2/3k1PB1/R1p2BK1/nr1n2nB/4n3 b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nc3 h5 Nb1 hxg4 h4 Kd7 d4 Kc6 f4 Kd5 Kf2 e5 a4 b5 a6 c5 a5 g5 h5 g3+ Kg2 b4 a7 c3 h6 e3 a6 g4 Na3 e2 Rh5 e1N+ Kh1 c4 Ra2 b3 Bh3 c2 Nb5 b2 Bf1 b1N Be3 c1N Rhh2 c3 Bd3 e4 Qf3 Rh7 Be2 Rf7 Rh5+ Bf5 Qf1 g2+ Kh2 Qa5 Qf2 Be7 Nd6 Bd8 Nf3 g1B+ Kg3 Ne7 Ra3 Nd7 Nc8 Ng2 Ne5 Nf8 Nd7 Na2 Bd1 Kc4 d5 Nd2 d6 Neg6 Ne7 Rc8 a8B Nh8 a7 Qa6 Bb7 Nfg6 a8B Kd3 Ba7 e3 Rg5 e2 Qb6 e1N Rh5 Be6 Rb5 Bc5 Bbf3 Kd4 Bab7 Rf6 Ne5 Bf5 d7 Bc7 d8B Rf7 Qc6 Ba5 Bc7 Bab6 Nd7 Ba5 Bd6 Bd8 Bc7 Bb1 Kh2 g3+ Kh3 Be4 Qb6 Bf5+ Bg4 N2h4 Bdf3 g2 Rb2 g1R Kh2 Nhg2 Kg3 Rh1 Bbe4 Kc4 Qc6 Nd3 Ba5 Rb1 Bc7 Nde1 Rb8 Rb2 Qf6 Bd6 Bg1 Bb4 Bb7 Bc5 Bh2 Kd3 Qe6 Kd4 Qb6
4B2Q/1r3rnn/2KB1R2/b1nNr1N1/4bbp1/NPr2q1N/4P3/3nkrRN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 f5+ Kd3 Ke5 Kc4 Ke4 h5 d5+ Kb3 a5 Ka4 d3 c4 d2 h6 Ke3 c5 Kf2 b3 f3 b6 d4 Kb5 d3 h7 g3 b7 g4 c6 g2 c7 f4 Kb6 a4 Nc3 a3 Rh2 a2 Nb5 Bb4 Rb1 a1R Na3 Nd7+ Kb5 Nc5 b8N Qd5 Rh6 Ra5+ Kb6 Bf5 c8N Be4 Na6 Nf6 Ne7 Rb8+ Kc7 Rb7+ Kc8 Rab5 h8N Nh7 Nc7 Ba5 Qc2 d1N Be3+ Ke1 Qb2 f2 Ra6 f3 Nh3 g1B Nf7 d2 Bg2 f1R Nf5 f2 Bf4 Bh2 Bd6 Bf4 Nfg5 Qd3 Kd8 Qf3 Ng3 Ra2 Qd4 Rc2 Qh8 Rc1 Ra1 Ne3 Nh1 d1N Kc8 Rc4 Nd5 Nf5 Rc6 Ng7 Rb6 Rb8+ Kc7 Rc3 Kc6 Re8 Rb8 Re5 Rf8 Rb7 Rf6 Rg1 Rc1 f1R Rb1 Rf2 Rc1 Rgf1 Ra1 Qg3 Rc1 Bc2 Be4 Qf3 Bg6 Be4 Be8 Rh2 N3f2 Rh4 Nfh3 Rh6 Rf5 Rf6 Rb1 Rf8 Rf6 Rff7 Rc1 Kd2 Be7 Nb2 Bf8 Rg1 Rf1 Nd1 Rf2 Rf1 Rg2 Ke1 Bd6 Bd3 Rg3 Be4 Rg1
5r2/1Rr1n1bR/qN3B2/R2RK2B/p2rn3/1N1qrb1P/2R2r1P/r2Q1kb1 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 bxa4 f5 cxd4 f6 h5 Nh3 h4 Ng1 h3 gxh3 exf6 Qd3 f5 Qd1 f4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kd3 Kd5 b4 a5 c3 g5 b5 a3 b6 g4 b7 g3 e3 f3 Bd2 f2 Qa4 f4 Be2 f1R Ra2 f3 Be1 g2 Bg3 f2 Qc2 a4 Qd2 Nf6 Nf3 g1B Bc7 Bg7 Be5 Ra7 Rc2 a2 Na3 a1R Nc4 Nc6 b8R Ne7 Rb7 Ne4 Bf6 Rf8 Nb6+ Kc5 c4 d5 Bd1 Bg4 Be2 Rfe1 Bd1 f1Q+ Be2 Kc6 c5 Kb5 c6 Ra2 c7 Rb2 Ng5 Bf3 c8R Ra1 Ne6 Qd6 Rd7 Rc7 Nc5 Qd1 Nb3 Qc6 Na8 Qa6 Nb6 Qf1 Rb8 Rba2 Rb7 Re1 Rc3 Raa1 Kc2+ d3+ Kb2 d4 Rc2 Bg2 Bh5 Bf3 Rd8 Re2 Ra8 Rf2 Raa7 Ng5 e4 Ra3 e5 Ne4 Qe1 d2 e6 d1R Qd2 d3 Ra8 Rda1 Raa7 Nc5 Kc3 Ne4+ Kd4 Qd1 Ke5 Qb1 Qc3 d2 Qe3 d1R Qd2 Re1 Ra8 Re3 Raa7 Qf1 Ra8 Qd3 Raa7 Nc8 e7 Rd1 e8R Ne7 Rea8 Raa1 Qe1 Rf7 Rh8 Rf8 Rh7 Rdd2 Rc5+ Kb4 Rd5 Kc3 Qe2 Qab5 Ra5 Qa6 Qf1 Kc2 Qg2 Kd1 Qg5 Ke1 Qf4 Rdd1 Qh6 Ree2 Qd2+ Kf1 Nd4 Qa3 Na8 Re3 Qc3 Kg2 Nb6 Qb3 Qc1 Qb1 Nb3 Rd4 Qb2 Qbd3 Qc3 Rfe2 Qb2 Bf2 Rc1 Bg1 Qd2 Rf2 Rc2 Kf1 Qd1+
RN2NQ2/2B2r1q/KP1b2rP/Rn2nq2/B4r1R/1bk1qq1R/1Rp2q2/q7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 Ke2 Ke5 h4 Kd4 e5 c5 e6 a5 d3 f5 b6 g5 e7 g3 e8R g4 b5 c3 h5 c4 b7 f3+ Ke1 c2 Kd2 c3+ Ke1 g2 h6 a4 b6 g3 Re5 a3 Bb2 c1Q Nd2 a2 Ne4 f2+ Ke2 f4 Nh3 g1Q Rh5 g2 Nc5 Bd6 Rh4 Ra7 Nd7 Na6 b8R Nf6 Ra8 Nc7 Nb8 Rf8 Ng5 Be6 R1h3 Nb5 Ne4 Nd7 Nf6 Qe7 Ne8 Ne5 Qa4+ Bc4 Qa3 Bb3 Rb1 Rd7 Ra5 Qh7 Ba1 Qh2 Rb2 g1R Bg2 c2 Bc6 Kc3 d4+ Rg3 d5 Rdf7 Bd7 Qcg1 Bc6 f3+ Ke3 Bc7 d6 Rg6 d7 Bd6 d8R f1Q+ Ke4 Qhf2 Bd7 Nc4 Kd5 Qf1g2 Kc6 Ne5+ Kb7 Qge1 Rh2 Qee3 R2h3 Rf4 Ka6 R8f7 Bc6 Qg4 Bd7 Qf5 Bc6 Qg2 Bd7 f2 Bc6 f1Q Bd7 Bc7 Qf8 Qff2 Bc6 Bd6 Bd7 Nd4 Ba4 Qgg3 Rd7 Qff3 Ra7 Nb5 Ra8 Qgf2 Rb1+ Kd3 Bd4 a1Q Rb2 Kc4 Bc5 Kc3 Ba3 Bc7 Be7 Bd6 Bd8 Rg1 Bc7 Rg2 Rb1 Rg6 Rb2
B3b1B1/1P3N1B/1Kbq3N/3r4/PpR1BR1b/Bn1n1r2/1r1Q1rb1/n1k2r2 b - - 0 1 illegal: No possible last move
4r3/3NnN1K/b1pbq3/r1PqQ1RB/P2r1rq1/1R1kN2r/1BN1Nq2/2n5 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b3 e5 b4 axb4 dxe5 f5 Ba3 fxe4 Bb2 Be7 Bc1 Bf8 Ke2 Ke7 Ke3 Ke6 Kf4 h5 g4 b5 a4 d5 c4 b3 f3 c6 c5 b2 g5 b4 g6 b3 g7 d4 Qe1 Kd5 e6 h3 Kf5 d3 Kg6 Kd4 e7 d2 e8N d1Q f4 h2 f5 e3 f6 e2 f7 h4 Nc3 b1R Bg5 h3 Be3+ Kd3 Nd6 b2 Nb7 Qh4 Bf2 Na6 Nd6 Nb4 Nc4 Ba6 Ra2 Bd6 Ra3 Na2 f8N Nc1 Bd4 Qf2 Nf3 Re8 Rb3 Rh4 Nd7 Rf4 Bf6 Ne7+ Kh7 Rd4 Rg1 h1Q g8N h2 Ne3 Ra1 Ned5 b1R Nh6 Qhg2 Ne3 h1R Be5 Rh3 Bg7 Rf4 Nd4 Qd5 Rg5 Ra2 Bg2 Rd2 Bf3 Rbb2 Bh5 Rb1 Ra3 Rb5 Nf7 Ra5 Bh8 Rff3 Rb3 Rf4 Qg1 e1Q Qg3 Qg4 Ndc2 Qee2 Bd4 Qge6 Be5 Q2g4 Ne2+ Ke4 Bc3 Rd4 Qh2 Kd3 Qg3 Rf5 Qe5 Rff4 Bb2+
1bKQ2rq/1r1N4/1PR1R1q1/3r2rn/k2NR1R1/2P2b2/B2br1p1/b1B1nR2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 g5 b4 a5 h4 f5 e4 d5 c3 Kd7 h5 f3 Kg3 d3 h6 d4 b6 Kc6 e5 Kb5 h7 f4+ Kf2 a4 e6 g3+ Ke1 a3 Kd2 g2 b7 f2 e7 f3 e8R g4 Nh3 g1B Ng5 g3 Re6 g2 Rh4 a2 Ree4 Bh6 Re1 Ra7 Ba3 Nd7 b8R+ Bb7 Be2 f1R Bb2 f2 Bg4 Ne5 Bf3 Bh2 Rc8 Nf6 Rhe4 Rg8 h8R Nh5 Bc1 Rg1 Rh7 f1Q Rc6 Qe8 Rhc7 Qg6 Rg7 Ba8 R1e3 Rb7 Nf7 Qf2+ Be2 Qh4 Bg4 Rf1 Be6 Rf5 Bd5 Rg5 Re2 Nd7 Ne5 Nc5 Nd7 Bb8 Ree6 Qh1 R2e4 Qh2 Qe1 Qh4 Na3+ Ka4 b5 Qh3 Rb1 a1B b6 Qh2 Ba2 Qh4 Kd1 d2 Ke2 d1R Kf3 Rd2 Nc2 Nd3 Qd1 Re2 Qd2 Nb4 Qd1 d3 Nd4+ Nc2 Qd2 Re5 Qg5 d2 Qf6 d1R Qd8 Qe8 Rgg4 Reg5 Ba3 Rdd2 Rf1 Qh1 Bc1 Rd1 Re3 Ne1+ Ke4 Rdd2 Re5 Rd1 Kd5 Qg6 Ree4 Rd3 Rff6 Qh2 Ke6 Rd1 Ke7 Rd3 Ree6 Qe5 Rf1 Qh8 Bc4 Rd1 Nb5 Rdd5 Nd4 Rge5 Ba2 Bd2 Qf8 Rf5 Kd8 Rg5 Kc8 Ra5 R4e5 Rba7 Rcc5 Bf3 Qd8 Rb7 Rcc6 Rd5 Ree4
3n2NB/2qk1N1P/1rBq2b1/R1QN4/1R5N/1p1N4/rPbr3r/1bK2bbn b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 c5 d4 cxd4 a5 h5 gxh5 Qxa5+ Nd2 Qa4 Nb1 Qa2 Kd2 f5 e4 d5 h4 a5 c4 g5 h6 b5 h7 d3 h5 b4 h6 d4 c5 f3 c6 f4 e5 f2 c7 b3 e6 g4 e7 f3 Rh2 a4 Qe2 a3 Qe3 g3 Rh4 g2 Ne2 g1Q Rh3 Qg7 Bg2 f1B Qe5 f2 Bd5 Ra6 Qf6 Bf5 c8N Rb6 Qe5 Kd7 e8N Nf6 Qg3 Nc6 Qg4 Ne4+ Kd1 d2 Rg3 Nd8 Qh5 Bg6 Nc7 Bc5 Nf4 Bd3 Rg4 f1B Ne7 Ng3 Ng8 Nh1 Bf3 Qe7 Ncd5 Qd6 Rh4 Bdf5 Nd3 Be4 Nbc3 Qb1 N5f4 a2 Ng2 Qc7 Nd5 Bef5 Nf2 Qd3 Be4 Qdg3 Nd3 Qgd6 Rf4 Qb8 Nh4 Qbc7 Rb1 a1R Qg5 Ra4 Ra1 Rab4 Ra5 Ra4 Bf3 Ra2 Nge7 Re8 Ng8 Re2 h8N Rh2 h7 Be4 Nf7 Bef5 Nf2 Bb1 Nd3 Bg2 Ke2 d1R Be3 Rd2+ Ke1 Bf1 Bg2 Rf2 Kd1 Re2 Kc1 Rd2 Nf2 d3 Rb4 Ra3 Bd4 Ra2 Bh8 Bd4+ Nc3 Be3 Qc5 Bd4 Nfd1 Bg1 Nf2 Re2 Kd1 Rc2 Ba8 d2 Nd5 Bh3 Ke2 d1B+ Ke1 Bf1 Nd3 Rcg2 Bb7 Bdc2 Ba8 Bf2+ Kd2 Bg1+ Kc1 Rd2 Bc6+
1R2K1n1/b2rb1kP/2bP4/N1r1b1n1/2NBN1q1/N2NQBR1/1q1r3p/2r1b3 b - - 0 1 illegal: No proof kernel
B1q1r2b/4bP2/P1r5/1Qn1p1bR/2BBb3/5N1r/qR1b4/rk1nNBKB b - - 0 1 illegal: No possible last move, all moves rejected
1B1qBqR1/Rp1Bk3/BP2qbbr/P1Kb1rn1/4bnNb/3Q1N2/B7/3q4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 e5 fxe5 c5 b5 cxd4 Qd2 Rh5 Qc3 Rh8 Qb4 axb4 Kf2 g5 h4 f5 e4 d5 a4 b3 c4 f4 e6 g3+ Kf3 g2 e7 g4+ Ke2 d3+ Kd2 f3 Ke3 f2 Kd4 d2 h5 d1B e5 b2 a5 g3 b6 Bf5 c5 Bf3 c6 Na6 c7 Bg7 c8B Nb4 h6 Bf6 h7 Bg6 Kc5 d4 Nd2 b1B Ra3 d3 Nh3 g1B Ra2 g2 Be6 Bd5 Nf3 d2 Ba6 f1Q+ Nf2 d1Q Bf4 Bbe4 Bd7+ Kf7 e8B+ Ke7 e6 Nh6 Bb8 Nf7 Re2 Bh2 Rg1 Ng5 Ng4 Bg3 Bf7 Bh4 Re1 Rf8 h8Q Qde2 Qh7 Nd3+ Kb5 Nf4+ Kc5 Bh5 Qf5 Bg6 Rc1 Rh8 Rc3 Rh6 Rc2 Bc6 Rc4 Bed5 Qd3 Bde4 Rd4 Qee1 Rd6 Bcd5 Rc6 Qee2 Rc8 Bh8 Qb1 Ba2 Kb4 Qc4+ Ka3 Nh7 Qd1 Ne2 Nge5 Kf8 Ba7 Qe8 Rh1 g1Q Nd4 Bgf5 Qd3 Qff2 Rh3 Qd1 Rg3 Rb8 Rg7 Ng5 Ng4 Bg6 Bg8 Qf7 Nf3 Nf4 Rd8 Qc7 Kb4 Rc8 Kb5 Qb8 Kb4 Rc5 Rc8 Qe5 Ra8 Qd8 Bb8 Qef6 Ra7 Rf5 Bc6 Qfd7 e7+ Ke8 Be6 Qf8 Rg8 Bf6 Ba4 Bc4 Bb3 Bcd5 Ba2 Qc6 Bc8 Kf7 Bd7 Qd6+ Kb5 Qe6 e8B+ Ke7 Kc5
5Rbr/4N2R/2B2n1r/1r1n1N1r/2p1q3/K1n1Pn2/P2Qbb2/B2RRRkq b - - 0 1 illegal: No possible last move
3N4/r2nn2K/B1Rqb1p1/4rPPn/b1R1q1N1/1n2b2b/B1N2rkN/Q4N2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Bd2 h5 Bf4 h4 Bg3 hxg3 Ke2 Kf7 h4 Kg6 f4 d5 c4 e5 b4 a5 b6 a4 b5 a3 c5 d3+ Ke3 g2 b7 d4+ Kf2 e3+ Kg3 e2 c6 e1R g5 Kf5 h5 Ke4 Kh4 a2 h6 d2 Kh5 d3 Kg6 Be6 f5 Qd6 c7 Nd7 c8B Ra7 Nf3 g1N b8N Ne2 h7 Ng3 b6 Nh5 b7 Kf4 Nc6 Kg3 b8N e4 Rh4 e3 Rf4 e2 Nce5 Be7 Qc1 d1B Nh2 d2 Rc4 Ba4 Nbc6 d1B Nd2 Bf8 Rb1 a1N Rb6 Nb3 Ba6 Be7 Qb1 Bf6 Neg4 Bd4 Bg2 Be3 Nd4 Rf1 Bh1 e1Q Rbc6 Rf2 Bd5 Bf3 Qa2 Bg2 Nc2 Bh3 Qb2 Qh1 Qa1 Qe4 Ndf1+ Kg2 Bb7 Ngf6 Ba6 Re8 h8N Ng8 Kh7 g6 Nf7 Ne7 Nd8 Rf8 Nb7 Rb8 Nd8 Rb5 Rc3 Rc5 Bdc4 Re5 Bd5 Nc1 Ba2 Nb3 R3c4
b2B1QK1/3r1Rn1/2P2bB1/n2qk3/1N3p2/1qB2P2/nb1rR3/rb1BNnB1 b - - 0 1 illegal: No possible last move
1K4k1/B2N1p2/q1N3Pq/Rb3BNr/1NQ1rrnn/b1R2P2/1r4nn/1qN5 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 a5 Ke3 h5 Kf4 e5+ Ke3 h3 d4 a4 c4 h4 g4 a3 g5 a2 b6 h2 d5 h3 c5 b3 f3 b2 b7 Nd7 b8N Nh6 d6 Qa5 g6 Nf6 c6 Qa6 c7 Nf5+ Kf2 e3+ Ke1 e2 Kd2 e1N Kc3 e4 Kb4 e3 Kc5 e2 Na3 b1R Qd3 Nh4 Nc2 Bd7 c8N Bb5 Be3 Rb2 Nc6 Ng4 N2b4 Neg2 Nb6 e1R Nd7 Rh5+ Qd5 Be7 Bd3 Rb8 Rc1 a1Q Ne2 Qb1 Rc3 Rb6 Rf1 h1N Nc1 h2 Bf5 Ng3 Qc4 h1Q Kd5 Rb8 Ba7 Re4 Re1 Rf4 Re5 Nf1 Kc5 Nfh2 Kd5 Qc8 Kc5 Ra8 Kb6 Qa6+ Kc7 Rb8 Rc5 Rb7+ Kc8 Rc7+ Kb8 Re4 Nde5 Kf8 d7 Kg8 d8N Rd7 Ne6 Rdd4 Ng5 Rf4 Nc2 Rde4 Rd5 Ba3 Nd7 Qg1 Re5 Qc5 N2b4 Qf8+ Kc7 Qh6 Kb8 Ba4 Ra5 Bb5 Bc5 N2e3 Bb6 Neg2 Ba7
4BBrb/1N1P3b/2Qr4/1nnrnpRP/1bRk4/n2q1rN1/4B2B/K1Bq4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 d4 g5 Kd2 c5 Kc2 a5 Kb2 g3 h4 a4 h5 c3+ Ka2 c2 b6 f3 d5 Ke5 d6 g4 b7 g2 b5 a3 b6 c4 Nd2 g3 Qe1 c3 Rh2 f2 Bb2 c1Q Rb1 Nc6 b8B Ra6 b7 Nd4 Nh3 g1B Nf4 c2 Bc3 g2 Qe3 Nh6 Qe2 Rg8 Ba7 Ng4 b8B Bf5 Bb2 Qd1 Ra1 Bh7 Bc1 f5 Bc5 Nb5 Qf3 Qd7 Be2 f1R Rh4 Bd4 Qc3 g1R Nb3 Rf3 Na5 Qd3 Rb1 Rd1 Ka1 a2 Nb7 Rc6 B5a3 Rc5 Rb2 Rd5 Qc6 Bc3 Bc7 Kd4 e5 Bg7 e6 Bh8 e7 Ne5 e8B Bb4 Rb3 Qd8 Rg4 Qd7 Rg5 Qd8 Kb2 a1N Rc3 Rd2 Ng2 Rd1 Ne3 Rd2 Nf1 Rd1 Bf4 c1N Ng3 Ncb3 Bc1 Nc5 Ka2 Nc2 d7 Qa8 Bd6 Qa4 Bf8 Rd6 Bf4 Rd2 Kb1 Rd1+ Bac1 Nca3+ Ka2 Rd2+ Ka1 Qd1 Rc2 Rd5 Rc3 Ng6 B4d6 Ne5 Rc4+ Ke3 Rc3 Ng6 Bc7 Rd4 Rc2 Qe4 Be5 Rd6 Nh1 Qc4 Rb2 Qcb3 Bh2 Ne5 Rc2 Qc4 Qc8 Ke4 Qc6+ R2d5 Rc3 Qcd3 Ng3+ Kd4 Rc4+
2r1r1QN/3P3p/1b3N1R/BrNnnK1N/qR2PbB1/N1n2q1n/b7/2k4r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 f5+ Ke5 a5 e4 c5 b3 a4 b6 a3 g5 h3 g6 c3 d5 a2 d6 c2 g7 h2 b7 f3 Kf4 c4 Qe1+ c3 Qd1 f2 Bb5 f1Q+ Qf3 Qd7 Na3 Nc6 b8N Nge7 g8N Ne5 Bc6 Nd5+ Kg5 f4 Qd1 f3 Be3 c1N Nf6 f2 Nf3 c2 Nh4 Kc3 b4 Kb2 b5 Ne2 b6 c1B b7 Nec3 Qg4 Qh3 Bf4 f1R Ng6 Qf3 Na6 Qe8 b8N Be6 Nbd7 Rc8 Qg3 Be7 Ba4 Bd8 Bd1 Bb6 Nh5 Bf7 Ndf6 Qa4 d7 Rhe8 Qg1 Bd2 Be2 Rb1 Nc5 Be3 Bd1 Kc1 Kf5 Bd2 Qg5 Be3 Nh8 Bd2 Rf1 h1N Qg8 Nf2 Rh1 Nh3 Rh2 Qh1 Bg3 Bf4 Bg4 Qf3 Rh1+ Kd2 Bh4 Rb5 Rab1 a1R Rb4 Rf1 Rh2+ Kc1 Be1 Rh1 Ng3 Ng5 Rh6 Nh3 Ngh5 Nc7 Qg6 Ba2 Qg8 N7d5 Rb2 Nb1 Ba5 Nbc3 Rb4
5bN1/R5PN/2rn2qr/8/KPR3QR/bB1r3R/1p1bn2b/Bb1kbR1r b - - 0 1 illegal: No proof kernel
3qkn1B/p1n1b2r/2K3n1/1Q1nP2b/2B4R/2N2r2/bbN2RrP/2rRR2R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 d5 Kd3 g5 c4 f5 e4 f3 b4 g3 b6 f2 e5 g2 b5 g4 b7 g3 c5 f4 b6 f3 c6 Be7 c7 Rh7 Ba3 Nd7 b8R Nf8 b7 Be6 Be2 f1N c8R f2 Qc1 Ne3 Rc4 f1R Bb2 Rf3 Nh3 g1B Nf2 g2 Ne4 Bf2 Qd1 g1R Rb4 Rg2 Ba3 Be1 Rc4 Bc3 Qf1 Bb2 Nec3 Bf7 Rbc8 Rb8 R8c7 Rc8 b8R Bh5 Rd7 Bf7 Kd2 d3 Rh4 d4 Bc5 Ba2 Na3 Rc6 Nc2 Nd5 Re1 Nc7 Ba3 Rc5 Rb6 Rc4 Rf6 Rc5 Kd1 d2 Bc4 Rg5 Ke2 d1N Rd5 Ne3 Kd3 Rg2 Ke4 d3 Bb4 d2 Rd3 Rfg3 Rf2 d1B Ba3 Be2 Rdd1 Bh5 Qd3 Rh3 Qd5 Rc6 Qb5 Ned5 Bc5 Rhg3 Be3 Rf3 Bh6 Ngf6+ Kd4 N6d7 Bg7 Ng6 Bh8 Ndf8 Qa6 Rd6 Kc5 Rdf6+ Qd6 R6f4 Kc6 Rd4 Qc5 Rd2 Nd4 Rc2 Qb5 Rc1 Nc2
B1Q1r2r/KpR1R2B/1BP2b2/8/b1bB2Nq/1P1nbb2/1Nkbq1bq/4B3 b - - 0 1 illegal: No proof kernel
B1r1RrRN/1q6/1nb1q2Q/2n1k1K1/q1B2p2/rp5r/1P2P1Rr/b1RNR3 b - - 0 1 illegal: No proof kernel
2B1n1R1/1b1b1r1B/1qB2pK1/2nPBRb1/N2BP2b/rp2Q3/2rkNq2/2b5 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 h4 Kd4 a4 b5 d3 g5+ Kg3 c5 a5 c3 a6 b3 a7 b2 e6 c2 h5 b4 e7 b3 e8B c4 h6 c3 h7 Na6 Nd2 Ke3 d4 b1B d5 Bh6 Rh5 Nc5 Ba4 Qb6 Ra2 Bb7 Rh3 Nf6 Bb2 c1B Rh5 c2 Bd7 Rhf8 h8B Ne8 Bhe5 f6 Qe1 Rf7 Ra5 Qd8 Ne4 Qb6 Kg2 g3 Kh3 g4+ Kh4 g2 Rf5 g3 Kh5 Bg5 Nc3 Bh4 Na4 Bg5 Qf2+ Kd2 Kg6 Bh4 Bc8 Bg5 Nh3 g1B Bbd4 g2 Nf4 Bh2 Qg3 g1Q e4 Qf2 Ne2 Bh4 Qg1 Bf4 Bh3 Bfg5 Ra6 Ba3 Qg3 c1R Qf3 Bd3 Qe3+ Kd1 Bg4 Bb5 Bh5 Rc2 Bg4 Rb8 a8B Bd7 Ra7 Bc1 Ra5 Ba6 Bc6 Ra8 Rb5 Qa5 Rb8 Bb7 Rf4 Qb4 Be6 Qb6 Rf5 Rh7 Bg8 Rf7 Bh7 Ke1 Nb2 Ra3 Na4 Ba8 Ba6 Bb7 Rc8 Nc7 Rg8 Ne8 Qg3 Kd2 Qh3 Ba8 Bc8 Bb7 Qe3+
1B2rq1N/3bpb2/3RP1B1/3K4/QrRR1Nn1/4P1bR/1Rbp3n/1q2bqk1 b - - 0 1 legal: proof: d4 h5 b4 a5 g4 axb4 d5 hxg4 d6 cxd6 e3 Qb6 e4 Qe3+ fxe3 d5 Qf3 d4 Qe2 Ra7 Qd1 Ra8 Ke2 f5 Kd3 Kf7 Kc4 Ke6 h4 Ke5 a4 d5+ Kc5 g5 c4 b5 a5 b3 h5 f4 a6 b4 a7 f3 h6 d3 h7 d2 Na3 d4 Ra2 f2 Nb1 d3 Qc2 d1B Ra4 d2 Bg2 f1Q Ra5 g3 Bh3 b2 Ra4 g4 Bg2 b3 Rb4 Bd7 Nh3 Bh6 Qd3 Qf8 Na3 b1B Nf4 b2 Rh4 Bb3 Rb6 B1c2 Rd6 b1Q Nb5 Nc6 Ba3 Rb8 a8R Nf6 Ra6 Bg7 Rb6 Nd4 Bf1 Rg8 h8R g2 R8h6 Ba2 Qb3 g1Q Bd3 g3 Qa4 g2 Rg4 Qgf1 Rh3 Nf3 Bb4 Bc8 Kc6 g1B c5 Bh8 Ba5 Bae6 Rb7 Bf7 Bc7 Nh2 Rgh4 Ra8 Bb8 Nfg4 Rb6 Bce6 Rb7 Bf2 Rb6 Kf6 e5+ Kg5 Bg6 Be1 Rb7 Bc8 e6 Bd7+ Kd5 Be5 c6 Ra6 c7 Rb6 c8R Rh8 Nc3 Rb4 Rc4 Rg8 Nce2 Rh8 Bh5 Kf5 Ng6 B5g3 Nef4 Rg8 Nh8 Kg5 Kc5 Kf5 Rc3 Ke4 Bg6+ Kf3 Kd5 Kf2 Rc4 Kg1 Rd4 Rc4 Rb2 Rb4 Rh6 Qg7 R6h5 Re8 Re5 Qf8 Ree4 Qa2+ Rc4 Qb1 Red4
3N4/2Pb1B1R/r1q2k1b/1prPq1nR/3r1q2/1nB4p/Nr6/rQB2BBK b - - 0 1 illegal: No proof kernel
3nb3/1PK2bn1/1r2R2b/1pPN1nRQ/3p2R1/1nRn1k2/2rB4/1N1Bqq1R b - - 0 1 illegal: No proof kernel
1kbK4/bPn1B3/1Pp3b1/2Bbn2q/1B2n3/1Bb1R1rN/3R1p1N/QrB1q3 b - - 0 1 illegal: No proof kernel
r3nBKQ/1n2p3/nrRB4/pPn4b/n1B1n3/2qP1kBB/1b2N2N/1R4n1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 c5+ Kc3 Kd5 g4 a5 b4 h3 b6 e3 b5 Ke4 f5 e2 b7 e1N g5 h2 f6 h4 f7 h3 g6 Qd3+ Kb2 c3+ Kb3 c4+ Ka4 c2 g7 c3 Kb3 Nf6 g8B Na6 b8B Nf3 Bg3 Bg4 Bb2 c1N+ Ka4 c2 Ne2 Rh6 Bbe5 Na2 Qe1 c1N Bb8 Bg7 f8B Bh5 Bf7 Qc3 Bg2 Nb3 Bc4 Ne8 d3+ Ke3 Nd2 Ng1 Rb1 Rb6 Ka3 Bh8 Nf3 Nbc5+ Rb3 Bd4 Bbd6 Nb7 Qa1 Bh8 Bf1 Bf6 Ne5 Bg7 Ng4+ Kf3 Qb2 N2b4 Qa1 Nac5 Qb2 Nba6 Qa1 Qc2 Rb1 Na4 Rc1 Qd2 Kb3 Bb2 Rb1 Bc1 Qh8 Bb2 Bf7 Qe1 Kc4 Qc1+ Kd5 Qc3 Nf4 Ne2 Rg1 h1N Ke6 h2 Bh3 Nf2 Rgc1 Ng1 Ne2 h1N Bg8 Ne4 Nh2+ Ke3 Bf7 Nhf2 Rc2 Qb4 Rc6 Qc3 Bg6 Nec5+ Kf7 Nfe4 Kg8 Ba1 Bf7 Bb2 Bge5 Kf2 Bc4 Ke3 Bf4+ Kf2 Bg3+ Ke3 Ng4+ Kf3 Nh2+
5B2/6n1/2K5/1r3B1R/krPRNbNb/pbNn1PQ1/N1Npqnr1/b2q4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 d5 b4 Kd7 f3 h5 c3 e5 b6 Kc6 g5 h3 g6 h2 b7 a4 g7 e3+ Kd3 Kb5 Qb3 a3 Qc2 e2 Bh6 e1B Qe2 e4+ Kc2+ d3+ Kb3 h4 Qc2 d4 Qb2 h3 Qe2 e3 Qd2 e2 Ra2 Na6 b8N Nf6 g8N Qe7 Rc2 Bg7 Nd7 Bg3 Qf4 e1B Rd2 Qe2 Ne5 Rb8 Ng4 Ne8 N8f6 Rg8 Ne4 Bf6 Rd1 d2 Bf8 d3 Qc7 Bgh4 Qg3 Ng7 Bg2 Bf2 Bf1 Be3 Bg2 Qf2 Ne2 Bf4 Nc1 Qe2 Na2 Bd7 Rhg1 h1N c4+ Kb6 b5 Ka5 b6 h2 b7 Ba1 Bf1 Nb4 Nbc3 Nf2 Bh3 h1R Rge1 Rh2 Rh1 Rg2 Rh2 Rh8 Rhh1 Rh5 Rh2 Re8 b8N Rb5 Na6 Reb8 Rhh1 Kb6 Ka4 Rb7 Rb1 d1Q+ Rb3 d2 Rh2 Nbd3 N6b4 Kc7 Nc2 Rb4+ Ka5 Ba4 Ka6 R7b5 Ka7 Re5 Ka8 Kb6 Kb8 Ka5+ Kc7 Rb8 Rb6 Rh5+ Rd6 Rhb5 Kc6 Bb3 Rd4 Rb4 Nh6 R8b5 Bf5 Nh3 Ng4 Nhf2 Nb1 Ka4 Rh1 Be7 Rh5 Bh4 Nbc3+
1n3N2/r1b1r3/2b3Nn/k1N4p/1qN2pNP/1b2P1nK/qB3q1R/Q1B1R1b1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 f5 b5 axb5 e4 e3 g6 Bc4 gxf5 Be2 f4 Bf3 exf3 Kf2 a5 b4 d5 h4 Kd7 c4 Kc7 g4 Kb6 g5 f5 g6 h5 g7 d3 Qe2 a4 Qd1 d4 Nc3 d2 Qf1 d1Q Ba3 d3 Nge2 d2 Bc1 a3 Rh2 a2 Ne4 Bd6 Nc5 Nh6 g8N Ra7 Nf6 Re8 Ng4 Qe1+ Kg1 f2+ Kg2 d1B Kh3 f3 Nf4 Qc7 Ng6 Qf7 Qh1 f1N Qg1 Kc7 b6+ Kc6 b7 Kb6 b5 f2 Qh1 Ka5 b6 Re7 Rb1 a1B Qg1 Nc6 b8N Bae5 b7 Qb4 Nbd7 Nb8 Ndf8 Ng3 Qe1 Bc7 Qc3 Nd7 b8B Bb7 Qa1+ Ba4 Rb2 Bh1 Re2 Bc6 Re1 f1Q+ Rg2 Qf2 Rh2 Bd8 Bd6 Bf4 Be5 Bc7 Beb2 Bfe5 Ne4 Nb8 c5 Be8 c6 Qa2 Nc5 Bb3 Nh7 f4 Nhf8 Bc3 Reh1 Be1 Rf1 Be5 c7 Bc6 c8N Bc7 Nb6 Qe2 Nd5 Bf2 Re1 Bg1 Nb6 Qf2 Nc4+
1K2b1q1/3kR1rQ/1BRBr1b1/2p5/q1P4B/NpB5/PBNnqn2/2b3rb b - - 0 1 illegal: No possible last move, all moves rejected
2B2q1r/3R4/kP1B1n2/b2qQr1b/4rqr1/p1PR2B1/p1NnN1B1/K1B3n1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Kd2 e5 g4 h5 b4 d5 f4 Kd7 f6 Kc6 f7 Kb6 f5 a5 g5 e4 b5 d3 Kc3 h3 Kb2 h4 c3 e3 f6 e2 g6 e1N g7 d4 Ne2 a3+ Ka2 d2 Rh2 a4 Ng3 d3 Qg4 d1Q Qf5 d2 Qf4 Nd7 Ne2 Nf3 Ng3 Bb4 f8B Ra5 f7 Ndf6 Qg5 Ng1 Ne2 Bg4 Qd5 Bh5 Qf3 Ne4 Nf4 Ngf6 Qh1 Qg4 g8B d1R Bd6 Re1 f8B Nd2 Be6 Re4 Ne2 Qf4 Bc8 Qe8 Bfe7 Qf8 Bg2 Rg8 Be5 Rg4 B7d6 Ka7 Bd7 Kb7 b6 Ka6 Be6 Rb5 Bf5 Ba5 Be6 Qf5 Bg3 Qf4 Bd7 Rf5 Be6 Ngf3 Qe1 Ng1 Rh1 h2 Bd7 h3 Be6 Kb5 Bc8 Ngf3 Rf1 Ng1 Rf3 h1Q Rd3 h2 Qf2 Nh3 Qd4 Qd1 Qe3 h1R Qd4 Qg1 Qe5+ Qc5 Bf3 Ng1 Bg2 Nc4 Nd2 Rh3 Nf1 Qd5 Ne3 Rh2 Nc2 Rh1 Be6 Ka6 Kb1 Rhh4 Ra2 Nd2+ Ka1 Qda8 Bc8+ Qb7 Rb2 a2 Rb5 a3 Rc5 Rh1 Rc7 Rhh4 Bd7 Qd5 Rb7 Bg6 Be6 Rh8 Bc8 Bh5 Rd7+
1R4B1/1K3B1p/P4rqr/2k2n2/B1n4b/1Qnn2BR/N1b1qNpP/1q1r2B1 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 f5 c3 bxc3 Qd4 fxg4 Qa4 Nh6 Qd1 Ng8 e4 Ke7 Ke2 c5 Ke3 g5 f4 b5 a4 d5 a5 d4+ Kd3 g3 f5 c2 e6 Kd6 e7 b4 Kc4 d3 Kb5 c4 e8B b3 f6 g2 f7 b2 Na3 b1Q+ Bb2 c1R Nh3 g1Q Qd2 c3 Qc2 d2 Bd7 d1N Be2 g4 Bc4 g3 Nf2 Nh6 Qb3 c2 Bd4 Qe8 Kb6 Nc3 Ba4 Bf5 Kb7 Be7 f8B Nd7 Bg8 Ne5 a6 Rc8 Bg7 Nc4 Bde5+ Kc5 Nb5 g2 Bg3 Qf1 e5 Qe2 e6 Bh4 e7 Qg6 e8B Rd1 Ra3 c1N Bef7 Rc6 Rf1 Nd3 Bf6 Ne4 Nc3 Re6 Na2 Nc3 Re1 Rc6 Rg1 Be4 Bfe5 Nf5 Rh1 Nc1 Bef4 Bc2 Bd2 Nd3 Re1 Qf1 Re8 Qe2 Rb8 Rd6 Bd5 Rf6 Bgf7 Re8 Be3+ Nd4 Bg8 Re5 Bdf7 Rh5 Nh1 Rh6 Bg1 Nde5 Nf2 Nf5 Qb2 Ne4 Rf3 Nd3 Qb3 Nc3 Bf4 Nd2 Rh3 Nc4 Bg3
4nqr1/1BbqR1p1/1r1R1NPb/1Bb4k/2B1p3/PB4K1/b1Qr4/2qBn1N1 b - - 0 1 illegal: No proof kernel
N3nq2/1R3P2/r2rR1q1/BR1B1pQ1/K2n1pPb/8/nqR1b2q/2N1Rr1k b - - 0 1 illegal: No proof kernel
3nK3/rb1pp3/4n2r/1N1PBQ2/B1r1RB2/bBn1P1q1/1b1Rk3/BN3q1r b - - 0 1 legal: proof: g4 c5 b4 f5 a4 fxg4 h3 b5 axb5 gxh3 Bb2 cxb4 Ba3 Nh6 Bc1 Ng8 f4 Kf7 Kf2 Kf6 Kg3 Kf5 Kh4 Ke4 Kh5 g5 d4 a5 c4 a4 d5 a3 c5 b3 c6 g4 b6 g3 e3 b2 f5 h2 f6 a2 b7 g2 c7 Nh6 f7 Nf5 Ne2 Kf3 Qc2 g1R Bd2 Nc6 b8B Ng7+ Kh6 Ra7 Bh3 Rg4 Bc3 Bb7 c8B Qc7 Rd1 h1R Rd2 Rc4 Be5 Nd8 Nec3 Nge6+ Kh5 h6 Kg6 h5 Bf1 h4 Nb5 Bg7 f8B h3 Qd3 Bf6 Bg7 h2 Be2+ Kf2 Bd1+ Ke1 Bf4 Be5 Qe4 Bd6 Qf5 Ba3 Ba4 Qe5 Rd4 Ke2 Re4 Nc6 Kf7 Rh6 Ke8 Ncd8 Bh8 Qg7 Bbe5 Qg3 Nd2 b1N Bb3 Ba8 Bb7 Nc3 Bc6 Bb7 Rd1 a1B Nb1 B1b2 Rdd4 Rd1 Bhf6 h1Q Bg7 Qf1 Rd2+ Ke1 Nd6 Rc1 Bca4 Rd1 Nb5 Rc1 Rd3 Ke2 Rd2+ Kf3 Bc7 Na2 Qf8 Qfg1 Bd4 Ba1 Rd3 Ke2 Bb2 Nc3 Qf5 Q1g2 Bce5 Rch1 Rdd4 Qf1 Rd3 Nd1 Bc1 Bc3 Bb2 Bd4 Ba1 Bdb2 Rdd4 Nc3 Rd2+
6Q1/1Pq1R1R1/RNBnp2K/N1rbB1PR/Rp1qn3/2b1k1r1/8/1b1rqq2 b - - 0 1 illegal: No proof kernel
2q2rN1/1p1N1n1N/kqq1P1NB/8/Rr1b2bR/Qrp1P2b/2KN1qB1/7n b - - 0 1 illegal: No possible last move
b1NR2nk/p5Rr/8/nqR2Q2/1r3P1b/P2b1qRN/RrrpB3/K3n2B b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 Bd2 h6 Ba5 hxg5 Bc7 g4 Be5 Kf7 Bf6 Ke8 Bh4 Qe7 Bg3 fxg3 Qc1 Qh4 Qd1 Qd8 Kd2 Kf7 Kc1 b5 Kb2 d5 h4 g5 f4 Kg7 e4 d3 c4 d2 e5 b4 e6 b3 h5 d4 c6 g2 e7 d3 e8R g3 c7 g4 a3 Be7 c5 Qd7 c6 Rh7 h6+ Kh8 Nc3 Bh4 Qb1 d1Q Ne4 d2 Nc3 Qf3 Qc1 Bb7 Nh3 g1N c8R g2 c7 g3 Ne4 Qb5 Qb1 Nc6 Be2 Na5 Re7 Rb8 Nd6 Ba8 Qf5 Rb6 Kb1 b2 Rg7 Rc6 Ka2 Rc3 Rd8 Rc2 Rc1 b1B+ Ka1 Rb2 c8B Bd3 Rc5 Qg4 Rg5 Rc2 Rc7 Rf7 h7 Bc4 Rdd7 Nf3 Rd1 g1R Bb7 g2 Be4 Bd3 Rb1 Re1 Bd5 g1R Rc5 Rg7 Bd1 Re4 Rb2 Rb4 Ra2 Qg2 Rg3 Re7 Ng5 Kg7 Nc8 Rcb2 Rd8 Rge1 h8R R1e6 Rc2 Rc6 Be2 Ne1 Bdf3 Qf1 Bh1 Qf3 Rh6 Rb7 Rg6+ Kh8 Nh3 Rh7 Rg7 Rc7 Rc5 Rc6 Re5 Rcc2 Rc5
Bkb1N1q1/3br1bR/2r5/p3pbBQ/n7/n5b1/rPBNPR2/B1KB1b2 b - - 0 1 illegal: Other
r1b2rb1/b1nb2P1/kQNpp3/8/N4NP1/BBN3n1/2b1q2R/b1KRnN2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 b5 c4 h5 f4 b3 g4 e3+ Ke2 b4 a4 e6 c5 d3+ Ke1 b2 f5 e2 Kd2 e1B+ Ke3 b3 f6 h4 g6 h3 c6 d2 c7 h2 a5 Nc6 a6 Nge7 g7 Nd4 a7 Nf3 Bb5 Nd5+ Ke2 Bc5 Ra6 Rf8 Nc3 b1B Bc4 b2 Bb3 Bh7 Ra2 b1B Ba3 Bbc2 Qb1 Bg8 f7+ Ke7 Qb2 Kd6 Ra1 Kc6 Rd1 Kb6 Qb1 Bb7 c8N+ Ka6 Ne7 Bc8 Nc6 Nc7 Qb2 Bef2 Qb1 Ne1 Nf3 Bcd4 Qb2 Re8 f8N d6 Qb1 Qf6 Ng6 Rf8 Nf4 Bfe3 Qb2 Qe5 Qb1 Bg6 Qb2 Be8 Qb1 Bed7 Qb2 Rb8 a8N Qe4 Nb6 Ra8 Nba4 Ba7 Rf1 h1N Nh2 Qg2+ Rf2 Bed4 Nf1 Be5 Rb1 d1B+ Kd2 Bc2 Rd1 Ng3 Kc1 Qf3 Rh2 Qe2 Nb1 Bf6 Qd4 Be5 Qe3 Ba1 Nbc3 Bg6 Qg1 Bc2 Qb6+
1R1K2b1/P2B1N2/p3r3/nr3NPq/1b1rnr1r/1Rb5/2Q1pBNN/k3rN2 b - - 0 1 illegal: No proof kernel
1Q2nNqq/1pbN2r1/1r1b2Np/BBR2K2/1N6/2b1P1bN/b5P1/R1kbn3 b - - 0 1 illegal: No possible last move
N1r2rb1/prRr1Pbq/2Q1rBN1/B1Nb4/PN3R1p/8/b7/2k1NnKn b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 h5 f4 Ke2 f3+ Ke3 g6 Bd3 gxh5 Be2 Qa5 Kd4 fxe2 Kc4 Qd8 Kc3 h4 f4 Kf7 d4 Kf6 Kd2 Kf5 Ke1 b5 Kf2 e1R a4 e5 c4 h5 g3 e3+ Kg2 Ke4 c6 e2 f5 b4 d5 b3 g4 b2 c5 Qe7 d6 Na6 c7 Nb4 g5 Qh7 d7 Bg7 d8B Nh6 f6 Ng4 c6 Nd3 g6 Rf8 Na3 b1B Nc2 Nh2 Nf3 Nf2 Bb2 Be6 c8N Bba2 c7 Nf1 Ne7 h3+ Kg1 h4 c8N Bg8 Qd6 Rb1 f7 e1R Nb6 Red1 Nfe1 Rc8 Nb4 Ke3 Na8 e4 Qc6 Kd2 Ba5 e3 Bf6 e2 Rh2 Nh1 Rf2 Rb3 Rc1 Rb1 Rf4 Rb2 Ng2 e1R Rcc4 Re6 Ne1 Rc2 Rc3 Kc1 Rcc4 Rd7 Rc5 Bh8 g7 Rb8 Ng6 Rbb7 Qb6 Rc3 Rc7 Rc5 Qc6 h2+ Kg2 Nhg3 Kf2 h1B Kg1 Rc3 Ne5 Bhd5 N5d3+ Kd2 Nc5 Kc1 Be5 Nh1 Bf6 Rc4 Nb3+ Kb1 Qd6 Rb6 Rb7 Rcc8 Nc5 Kc1 Rc7 Rb7 Qa6 Qb1 Qb5 Bh7 g8N Bg7 Ne7 Bg8 Qc6 Qh7 Ng6
2BRb1r1/N1bq2n1/3B1b1p/1N1k1r2/K6Q/3qB1bn/2PRPp2/BBq1q3 b - - 0 1 illegal: No proof kernel
2k2qB1/N1q2r1R/1Q3r1p/bB1B3r/1bbnq1P1/2B2p1P/1r3r2/K1NR3B b - - 0 1 illegal: No proof kernel
2b2q2/2p2N2/2r1qNRn/Q1qN2K1/1nqp4/Pn1NB2N/1bRPk3/3n1B1b b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 a5 Bc1 axb4 c4 gxh4 Na3 b5 Rh3 b3 Nb1 b4 Rh2 Ra5 Rh1 Rb5 cxb5 Bd6 Nc3 Bc5 Nb1 Bf8 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 e4+ Kd4 e5 h5+ Kf5 d5+ e6 b2 g4 b3 a3 h3 g5 h2 g6 h4 b6 h3 g7 f3 b7 f2 Kg4 f5+ Kf4 Qe7 Qh5 Rh6 Bb5 f1Q+ Qf3 Qc4 Qe2 Qec5 e7 Rc6 e8N Nh6 g8N Na6 b8N Nb4 Qf2+ Kd3+ Kg5 f4 Ngf6 f3 Qg3 Bg7 Qe5 f2 Nc3 b1Q Na6 f1Q Bb2 Qbe1 Rc1 Qe4 Ba1 b2 Ba4 b1N Nd6 Qee1 Nf7 Qee2 Nce4 Nc3 Rc2 Nca2 Bd4 Nc1 Be3 Nb3 Nc3 Qff2 Nf3 Qff1 Rg1 h1B Rg4 h2 Ng1 Bh8 Nh3 Qff3 Nce4 Qe1 Nef2+ Ke2 Nd3 Qff2 Qd4 Qf8 Qc5 Bg7 Qa5 Qfc5 Ne8 Bb2 Nf6 Qf8 Bb5 d4 Ba4 Qg3 Bb5 Qgd6 Rg3 Qc1 Rg1 Qce6 Bc4 Qc5+ Bd5 Be4 Rg4 h1N Rg3 Nf2 Rg4 Na2 Nab4 Bh1 Rg3 Qc4 Bg2 Nd1 Nbd5 Qcc5 Kh5 Nb4 Rg6 Bc3 Kg5 Ba1 Rb2 Q1c4 Rc2 Bb2 Bf1+
K2Bb2k/5Rb1/bp1B2Bp/PB4b1/2n4b/n1NR2nN/1n1bqQ1P/2r4B b - - 0 1 illegal: No proof kernel
Q2Rb3/1qrBp1q1/1R1Nn3/2brP3/2Kn1R1p/1P3b2/4pBn1/N1kqR2R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 h4 gxh4 axb5 c5 e5 cxd4 Qd3 Bh6 Qf3 Bf8 Qe4 fxe4 Kd2 Kf7 g4 Kg6 c4 Kg5 c5 Kf4 b6 a5 b3 h5 c6 d5 b7 d3 Kc3+ e3 g5 d4+ Kc4 a4 c7 h3 g6 a3 f3 h4 g7 d2 Ra2 d1Q Bg2 h2 Rf2 d3 Bb2 d2 Bh3 a2 Ba1 e2 Be6 Ke3 f4 Nf6 g8R Nh5 f5 Nc6 b8Q Qd5+ Kc3 Ra5 f6 Bd7 c8R Be8 f7 Bh6 f8R Nd4 Rg7 Nf4 Bd7 Qb7 Na3 Nfe6 Rf1 Rd5 Rd8 Bg5 Bb2 a1Q Kc4 Qab1 Nf3 Qh7 Rgg8 Qg7 Re1 Bf4 Ng5 Bg3 Bb5 Bf2 Bd7 Rh6 Ne4 Rg6 Rhf1 h1B Nd6 Bf3 Rh1 Nc2 Rh8 Nc5 Qa7 Qa1 Qa8 d1N Rh6 Kd2 Nf7 Rc6 Bd4 Rc7 Rb6 Nde3+ Kb5 Ng2 Nd6 Qd1 Kc4 Kc1 Rf4 Ne6+ Bc5 Nb4 Nc2 Nc6 Na1 Bg1 Bb4 Bd4 Bc3 Bc5 Bd4 Be4 Rhg1 Bf3 Bf2 Ncd4 Rh1
KR1n2rQ/2P1n3/BB4BN/rpqr4/1b2p1Bb/1q1PNRq1/bp3B2/2k5 b - - 0 1 illegal: No proof kernel
qRK2B1n/bP3b2/nkp2r2/1NP3p1/3rR3/1bB2p2/RNn1R1rq/3Q3R b - - 0 1 legal: proof: f4 b5 g4 d5 a4 g6 e4 dxe4 axb5 Kd7 f5 Ke8 g5 Nh6 Be2 Ng8 Bh5 gxf5 g6 f4 g7 Kd7 Bg6 hxg6 Ra6 Ke8 Ra4 Bg4 Ra1 Bc8 Ke2 Kd7 b4 a5 d4 f5 h4 e5 h5 g5 h6 c6 b6 e3 Kd3 e4+ Kc4 a4 c3 e2 b5 e1Q d5 a3 h7 f3 b7 Kc7 d6+ Kb6 d7 f4 Be3+ Bc5 Rh2 a2 Nd2 f2 Ne2 f1B Rh1 Nh6 g8R f3 Re8 Rf8 h8B Qf2 Bhd4 Na6 b8R+ Ka5 b6 Nf7 b7 Kb6 Bf4 e3 Bd6 Qh2 Re4 Nh8 Be7 Rf7 Bf8 Rf6 Be5 Bh3 Nd4 e2 Nb5 e1N Re2 Qe8 d8R Nc2 Rd4 Bcg4 Rde4 Bh5 Nb3 B3g4 Nc1 Bf5 Nd3 Qc8 Nb2 Be6+ Kd3 Bb3 c4 Bf7 Bc3 Bg1 Rf4 Qd8+ Ke4 Be3 Ke5 Bc5 Rc1 a1R Rb1 Ra2 Ra1 Rd6 Kf5 Rd4 Rfe4 Qe8 Rd8 Rc8 Kf6 Rc7 Rb8 Rcd7 Kf5 Qc8 Kf6 R7d6+ Ke7 Rf6+ Nd6 Qf5 Kd8 Qg6 Kc8 Qg8 Nb5 Bd6 Ra8 Bb8 Nd3 Ba7 Rb8 Rb2 Ra2 Rb1 Qd2 Rg1 Nb2 Rg2 Qd1 Qg6 Ra8 Bd5 Kd8 Qgh5 Rc8 Qb8 Kd7 Qa8 Rb8 Bf7+ Kc8 Qh2 c5+
1Q1b2n1/6Bn/1N1P2nb/3n2p1/KNn1B1Rr/Rr3qN1/Pp4p1/kNN4b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 f5 e4 b5 h4 g3 h5 f3 h6 c4+ Kc2 f4 h7 c3 Kb3 f2 Be2 f1N Bg4 f3 Bd7 f2 Qh5 c2 Nf3 Nd2+ Kb2 f1N Qg6+ Qf6 Ng5 b3 Qe8 b4 Bc6 Ra3 Rh3 Qf3 Ba8 Nh2 e5+ Kc7 d6+ Kb6 d5 Ka5 e6 Nd7 e7 Ka4 Ne4 Ng4 Qd8 N4f6 e8N Bb7 Qb8 Ne5 d7 Ng6 d8N Be7 Nc6 Bd8 d6 Nd5 N4f6 Ne4 Bh6 Ng5 Nd7 Ne3 Na5 Nd5 Nef6 Bc6 Nh5 Bb7 Kc1 b2+ Kd2 c1B+ Kc2 Rd3 Nb3 Bf4 Nc1 Rb3 Nd2 Ka3 Nb6 Bc6 Bb7 b1N Ba8 Nbc3 Rb1 Be3 Rh4 Na4 Rg4 Nb2 Bb7 Nc4 Rb2 Ngf6 Rb1 Re8 h8N Ng8 Nf7 Re4 Ne5 Nh7 Ned3 Rf4 Rg5 Rh4 Rg4 Nge5 Rb2 g6 Bg7 Bh6 Bc8 g5 Bf5 Ng6 Be4 Bd7 Rf4 Bh3 Rg4 Bg2 Rb1 Bh1 Rb2 g2 Ng3 Rc3+ Kb1 b3 Nb4 Nce3 Rc2 Rd3 Rc3 Nc4 Nce2 Qf8 Kc1 Re3 Kd1 Kb2 Nb1 Qf5 Nc1 Ka1 Rd3+ b2 Kc2 Qf6 Kb3 Qf3 Rc3 Rd3 Ka4 Re3 Ra3 Rd3 Na8 Rb3 Nb6
3n2b1/rn4P1/Rr1p1r2/N1B1rPR1/p2KR2b/1N4QB/pR2r2b/2k2q1R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Kd2 Kf7 Kd3 Kf6 c4 Ke5 g4 a5 b4 h5 c5 h3 c6 h4 c7 a3 b5 a4 g5 h2 g6 h3 f6 a2 f3 Ra7 b6 Rh6 b7 Na6 b8R Nc5+ Kc4 d3 g7 d2 f4+ Ke4 f5 Ke3 f7 e5 Bg2 e4 Qf1 Rf6 Rb5 Nh6 Ba3 d1R Rb2 Bd6 f8R Re1 Rb7 Re2 Rb5 Nb7 Rg8 Nf7 Nc3 Kd2 Nd5 e3 Ne7 Qe8 Rf8 Nfd8 Qf3 Qg6 Bf1 Qg2 Bc5 Bf4 Kd4 d6 Rg8 Be6 Re8 Bg8 c8R Qf2 Bg2 Qf1 Ra8 Bg3 Rab1 Bh4 R1b2+ Kc1 R5b3 Bg3 Qf2 Bh4 Nf3 Bg3 Rg1 h1R Nc6 h2 Bh3 Bf4 Rg5 Rg1 Rh5 h1R Re4 Bh2 Na5 Rgg6 Rh8 Re6 Qg1 Re5 Qg3 Rf6 Nd2 Rg1 Rg4 Rgg2 Rg5 Rgf2 Rb6 Rf3 Ra6 Rf4+ Kd3 Rb4 Rh6 Rb6 Kd4 Rg2 Rh4 e2 Re4 e1B Rb8 Re2 Ndb3+ Kd1 Qg1 Bh4 Qg3 Qf3 Rb1+ Kc2 Rg1 Qf1 Rh1 Rc6 Rc8 Re7 Ba3 Re5 Bb4 Kb2 Rc7 Rb6 Rc2+ Kb1 Ba3 Bf7 Bc5 Bg8 Rc1+ Kb2 Rb1+ Kc2 Rb2+ Kd1 Na1 Kc1 N1b3+
Rrb2bBr/3R2pR/r1b3N1/1r1R1Q1K/p2PP3/R1n4k/3pn1rN/q5B1 b - - 0 1 illegal: No proof kernel
bB6/1rBNB2b/2NR1n2/q3p1P1/pRpbn1n1/3Br2k/2Pr4/1QK1B1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 g5 e4 gxf4 g5 dxe4 Qg4 hxg4 Kd1 Kd7 h4 Ke6 d4 Kf5 b4 a5 h5 e5 h6 c5 d5 c4 b6 f3 d6 g3 b5 Kg4 d7 f5 b7 e3 b6 g2 h7 f4 Bb2 a4 Be2 Nh6 Nc3 Ra7 Kc1 Bc5 Nh3 g1B Rb1 Bd4 Bd3 f2 Nd5 f1N Rh2 e2 Ne7 f3 Nf4 f2 Nc6 Nd2 Bc3 f1B Rb4 Ne4 Ng6 Bg2 Be1 Bf3 Rf2 Kh3 Nf8 Ng4 Rf1 Qc7 d8B Bf5 Be7 Nd7 b8B Ndf6 b7 Qa5 Nd7 Rd8 h8Q+ Bh7 Bc7 Bg2 b8B Rb7 Bd2 Bf3 Rd1 e1R Qg8 Re3 Qd5 Nef2 Qb5 Bd5 Bc3 N2e4 Be1 Rb6 Na7 Ba8 Nc6 Rb7 Be2 Kg2 Rb1 Ba1 Nf8 Rd2 Nd7 Kh3 Bf1+ Rg2 Rd6 Bc3 Bd3 Bd4 Qb2 Rf2 Qa1 Rh2 Rb4 Rd2 Qb1
1B4q1/RbRn1pr1/p3NB1b/K4pr1/R6n/2R2NQ1/P4PR1/1r1nr1bk b - - 0 1 legal: proof: h4 d5 c4 g5 e3 gxh4 Bd3 e6 Bf5 exf5 b4 c5 bxc5 dxc4 g4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 Ke4 Kb4 h5 d5 b5 g5 c3 g6 c2 d6 h3 c6 a6 g7 h2 c7 h4 Qh5 h3 Qh6 Bb7 c8R Rh7 Bd2 c1B Qg6 Nd7 Rc3 Ne7 g8R Bh6 Na3 Rg7 Qg3 Ng6 Nc2 Nh4 Nd4 Qf8 Ka5 b4 Rb1 b3 Ngf3 b2 Ne6 Bf4 Rg1 h1R Rg2 h2 Rh8 Qb8 Rhc8 Re1 R8c6 h1R Rc7 Ne5 d7 Qg8 d8B Nd7 Bf6 Be5 Ra1 b1N Ra3 Nc3 Ra4+ Bd4 Rb1 Nd1 Rb3 Rc8 Bb4 Be5 Rba3 Rhg1 Rac3 Rb8 Bd6+ Kd5 Qg5 Bh2 Qg3 Bd2 Ned4 Ke4 Bf4 Bd5 Ne6+ Rb4 Ra7 Bb7 Bb8 Bc1 Nfd4 Rb6 Rc7 Rb1 Nf3+ Kd3 e4 Ke2 e5 Kf1 Ned4 Be3 e6 Bh6 e7 Rg5 e8R Rg7 Qf4 Rg5 Rec8 Rg7 Rg6 Rg5 Ne6 Kg2 Qg3+ Kh1 Rc3 Bg1 R8c6 Ra1 Rc7 Rb1 Qf4 Rh5 Rg2 Rhg5 Qg3
k2n1NBB/3p2R1/3P1p1R/p1qnPN2/n2BK3/r2Q1n1B/b3brbB/7r b - - 0 1 legal: proof: b4 g5 f4 e5 h4 gxh4 a4 exf4 b5 Bb4 c3 b6 a5 bxa5 cxb4 a4 Kf2 a5 Kf3 c5 d4 h5 e4 a3 g4 c4 g5 c3 g6 a2 d5 h3 e5 h4 g7 h2 d6 c2 b6 h3 b5 Qc7 b7 Kd8 b6 Nc6 b8B Nf6 g8B Nd5 Bd3 Ba6 Be4 Kc8 Qe1 Kb7 Qc3 Nd8 Na3 Qc5 Bf5 Be2+ Ke4 f3 Bh6 c1N Nc2 f2 Nf3 f1N Ba7 Nd3 Nh4 Nb2 Nd4 Na4 Ne6 f6 Qc4 Rb8 Bg7 Ka8 Qd3 Rh5 Rb1 a1R Bh8 Ra3 Nf8 Rb7 Rg1 h1B+ Rg2 h2 Bh3 Rf5 Rb3 Rf3 Rg7 Bg2 Nf5 h1B Rb1 Nh2 Rg1 Bgf1 R1g6 Rc7 Rh6 Rf2+ Rg2 Nf3 Rg7 Bfg2 Qc2 Kb7 Qd3 Kc6 b7 Rc8 b8B Kb7 Bb6 Ka8 B8c7 Rb8 Ba7 Rb1 Bcb6 Bgf1 Qc3 Bhg2 Qd4 Bc4 Qc3 Bfe2 Qd3 Qb5 Be3 Ba2 Bf4 Rh1 Bd4 Qc5 Bh2
bb2b3/2n3P1/1B2P3/RB2KR1N/3pR1bn/2p1q1R1/1q2Qp2/1b1RNrrk b - - 0 1 illegal: No proof kernel
n3KbBB/N1PNppQ1/1R2n2P/n1q5/1q5B/5p2/BrBnr1bk/5n1R b - - 0 1 illegal: No proof kernel
2K2b2/2b4q/r1B1R1P1/3B1pRn/1BpPB1QN/3q2Nb/krpb2B1/1n4q1 b - - 0 1 illegal: No proof kernel
q2n3b/2N4r/2RNbp1n/N2PN1rk/K2pPB2/1n2pQ2/2NRb3/2qB3n b - - 0 1 illegal: No proof kernel
1r1Nr2B/qn2r1bB/1BnBp2P/1P2R3/q1k1nRp1/4Kb1N/2p3Br/1Q6 b - - 0 1 illegal: No proof kernel
1qqN3k/Br6/B1p1B1bB/K1bP4/1n1pnR1Q/4pRb1/2BP3N/b1n4r b - - 0 1 illegal: No proof kernel
n2rNN2/2q5/1PB1N1Rp/R3pr1r/2qp1bbq/1P1NB3/2k2nK1/4r1QN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c4 Kf7 f4 Kf6 Kf2 Kf5 b3 e5 b6 a5 c5 d5 g3 e3+ Kg2 Ke4 c6 d3 c7 e2 f5 e1R f6 a4 f7 d4 g4 h3+ Kf2 d2 g5 h2 g6 a3 g7 a2 Nf3 Nh6 g8N Na6 Na3 Ng4+ Kg2 Bh6 f8N Bf4 Nb5 Nf2 Ne7 Bg4 c8N Qc7 Rg1 h1R Be2 h6 Nf5 Rh5 Ng3+ Ke3 Ncd6 Rd8 Bd3 Rg8 Bc4 Rgg5 Ne8 Rf5 Bd5 Kd3 Nh1 Qc4 Bb7 Nc7 Bc6 Na8 Nbc7 Kc3 Nce6 Kd3 Qe2+ Kc2 Qf1 d1Q Be3 Qde2 Nfg5 Qed3 Nc5 Qd2 Nd3 Qdc3 Bd7 Qc7 Bc6 Qb4 Nge6 Qc4 Rb1 a1Q Rd1 Qa3 Ra1 Qae7 Ra5 Bh3+ Kf3 Qf6 Rg6 Bg4+ Kg2 Qh4 Qg1
2bb1Br1/2BB1R2/p1pKP1k1/PN6/B3bQR1/6pr/1n1N1q2/1n2Bnqn b - - 0 1 legal: proof: f4 h5 g4 hxg4 b4 e5 b5 exf4 b6 Rh3 c4 Rh5 c5 Rh8 c6 dxc6 bxc7 Qg5 Ba3 Qe7 Bc1 Qd8 Kf2 b5 e4 g5 a4 f5 d4 Kf7 h4 b4 a5 b3 d5 a6 d6 f3 Ke3 f4+ Kd4 b2 Ke5 f2 d7 f3 h5 Ra7 h6 Nf6 h7 Rg8 h8B Be7 Rh3 Kg6 Be3 Qf8 d8B Nh5 Qc1 Ng3 Na3 Nh1 Bb5 f1B Bc5 f2 Nf3 Bg2 Ba4 Nd7+ Ke6 Rb7 e5 Rb3 Nb5 Re3 Ra3 b1N Rh4 f1N Bb4 Bf6 Be1 Be7 Rd3 Nb6+ Rd7 Nc4 Bg7 Nb2 Bh6 Qf4 Bf8 Qg3 Qc4 Qf2 Nd2 Rh3 Qf4 Bf6 Kd6 Be4 e6 g3 Nd4 g2 Rf7 g1Q Nb5 Bb7 c8B g4 Bc7 g3 Bd7 Bc8 Nd4 Bg5 Nb5 Bd8 Rg4+
k2B2rQ/R5p1/b2p4/1q2N1Nn/BB2r3/P2P1Rrn/BbKn1pq1/1B3n2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 b5 Qa4 bxc4 b5 e5 Qb4 axb4 fxe5 Ra7 Na3 Ra4 Nb1 Ra8 Kd1 c5 e4 f5 h4 g3 b6 g2 d3 f4 b7 c3 e6 b3 e5 f3 e7 c4 h5 b2 h6 c2+ Kd2 f2 h7 c3+ Ke3 Nc6 b8B Na5 Nh3 g1N Na3 b1Q Kd4 Nc4 Bh6 c1R Ba7 c2 Kc3 Ba6 Bg5 Ne3 Bc5 Re1 Nc4 c1N Be2 Qb5 Bb4 Nb3 Bd1 Nf6 Bc2 Nh5 Bb1 Nf1 Kc2 Re4 Bf6 d6 Ng5 Kd7 e8B+ Kc8 e6 Kb8 e7 Nh3 Bf7 Nbd2 e8B Be7 Ne5 Qdb6 Rg1 Qb7 Rg3 Ka7 Bd7 Rag8 Rf3 Ka8 Bb3 Q7d5 Be6 Bd8 Ba4 Bb6 Bd8 Bd4 Bf7 Bb2 Be6 Re8 Bf7 Rhg8 h8Q Re6 a3 Rg6 Ra2 Bc1 Rb2 Qdb7 Rb3 Bb2 Rc3 Q7c6 Bfa2 Qcd5 Rc7 Qdb7 Nh7 Rg3 Rcf7 Q7d7 Ng5 Qg4 Re3 Qf3 Rc7 Qh1 Rf3 Qg2 Ra7+
B1r3Q1/3q1P1q/p1pN2n1/qr1pB1Nq/1bB1BR2/2P5/n4nbR/K1k4B b - - 0 1 legal: proof: e4 b5 d4 e5 h4 g5 a4 bxa4 Qd3 gxh4 dxe5 f5 e6 Qg5 e5 Qd8 Qe4 fxe4 Kd2 Ke7 Kc3 h5 b4 a3 g4 a6 f4 h3 b5 e3 f5 h2 b6 a2 Kb2 h4 g5 e2 c3 e1Q b7 h3 g6 Nc6 b8Q Qe2+ Nd2 Rh5 g7 Bb7 Bg2 Nb4 Be4 d6 Nf3 Qd7 Rf1 h1N Ng5 h2 Rf4 Nf2 Qc8 Qd3 Nc4 h1Q Bd2 Qhh3 Rh1 Qg4 Rh2 a1Q+ Kb3 Qaa4+ Kb2 Na2 Ka1 Qa5 Be3 Bc6 Bd4 Qgh3 Bh1 Bg2 Qb8 Qe2 Qb3 Rc8 f6+ Ke8 Qb8 Ne7 g8B Ng6 e7 Qed3 Bd5 Qe4 Ba8 c6 Nh7 Kf7 e8B+ Ke6 Ng5+ Kd5 e6 Qef5 Be5 Qh7 e7 Qd7 Bf7+ Kc5 Nb6 Kb5 Nc4+ Ka4 e8B Qh4 Qa7 Kb3 Qb8+ Kc2 Bd5 Qhh3 Bef7 Kc1 Be4 Qhg4 Bfd5 Qh4 f7 Be7 Ne6 Rf5 Ng5 Q4h5 Qb6 Bf8 Qd8 Be7 Qg8 Bf8 Bd4 Be7 Be6 Rb5 Be5 Bf8 B6f5 d5 Nd6 Be7 Bg4 Bf8 Be2 Be7 Bc4 Bf8 Nf5 Bb4 Nd6
rB1r1br1/Qn1nPp2/2NN1P1p/7K/nqqr1p2/3N2bR/2B3Nk/R3N3 b - - 0 1 illegal: No possible last move, all moves rejected
1Bn3B1/1B1Bp1kq/r1bpNRrq/1b2N3/3R1q1p/1Kn1Q1P1/1P1b2B1/6q1 b - - 0 1 illegal: No proof kernel
bnB4b/N1BP1n2/5PKN/3Qrpb1/b2N3q/1q2n3/2NpNkpR/R2r4 b - - 0 1 illegal: No proof kernel
1K4B1/1bpR1pN1/3Q1R2/1Pp2n1R/1q4R1/1Rqb2P1/2rbN1n1/1qBk2qr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 e5 c4 exf4 c5 d6 Ra6 dxc5 Ra5 Qd5 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 b4 a5 d4 f3 g3 f2 e3 a4 b6 a3 b5 h3 b7 h2 d5 a2 Qd2 h4 Ne2 h3 Nbc3 Nh6 Nd1 Ng4 Rb1 a1Q Rb3 Nc6 b8R Ra2 Rb6 Bb7 Bg2 f1B Qd3 Ke7 d6+ Ke6 d7 Qh4 d8R Bh6 Rd7 Rc2 Qd2 Kf6 Kd5 Kg5 Be4 Qc3 Bh7 Nd4+ Rc6 Nf5 e4+ Kh5 e5 Bg5 Qd3 Bd2 e6 Kg5 e7 Kh5 Rg1 h1Q+ Rg2 h2 e8R Qg1 Re4 h1Q Bg8 Rh6 Rh2 Rh7 Ne3 Kg5 Qd4 Rh6 Nf4 Bd3 Ne2 Kh5 Qe5 Kg5 Qd6 Rh5 Bb2 Qb1 Bc1 Qg1 Ng2 Rh8 Ngf4 Rh7 Nh5 Rh6 Rd4 Nge3+ Ke5 Rh7 Ng7 Ng2 Kd5 Rh6 Ra4 Qhb4 Rh3 Kg4 Rh5 Bc8 Rb6 Kf3 Kc6 Kf2 Rba6 Ke1 Rb6 Kd1 Rba6 Qa3 Rg4 Rh7 Raa4 Rh8 Raf4 Qab4 Rf2 Nh6 Rf6 Nf5 Re7 Bb7+ Kd7 Ba8 Kc8 Bb7+ Kb8 Rh7 Rd7 Rh6 Rhg5 Rh1 Rh5
1q1q1N2/1pP1n3/P1p1NKb1/5b1k/Qb1r1R2/1nB1pRq1/5q1R/2R2rRB b - - 0 1 illegal: No proof kernel
1qn2QRr/pq1N1K2/1n5N/P1p1pBbn/qB2qP2/8/4R1RR/R1r1b1k1 b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 Nf3 b5 Ng1 bxc4 h3 fxg4 Ke2 g3 Ke1 g2 Nf3 g5 Ng1 g4 Ne2 g3 Ng1 Bg4 hxg4 Qd7 Ke2 Qc8 Ke1 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 b4 h5 d4 e3 a4 c3 g5+ Ke6 a5 Kd5 Kf5 e5 Kg6 Ke4 f4 c2 b5 e2 d5 e1B d6 h4 b6 h3 b7 h2 d7 Be7 Ne2 Kf3 Nd4+ Kf2 Bd2 c1Q Nf5 g1Q Bh3 g2 Kf7 Qa3 g6 Qa4 g7 Bg5 Nh6 Ne7 g8R Nc8 Na3 Qb6 d8R Nd7 b8R Qb7 Bf5 Ndb6+ Rd7 Qbe4 Rbb7 Rb8 Bb4 Qf1 Qd5 g1N Nc4 Ne2 Qd6 Ng3 Qf8 Nh5 Rd2+ Qfe2 Rda2 Qb2 Rf1+ Kg2 Rf2+ Kg1 Rd7 Qbb3 Rae2 h1Q Rdd2 Qb2 Nd6 Qhf3 Ne8 Qg2 Nf6 Rb7+ Qe7 Rd7 Rc2 Rd1 Nd7 Rc1 Qf8 Qb7 Rcd2 Qge4 Rh2 Qbb1 Ref2 Qb8 Rb2 Qeb7 Rbe2 Q1e4 Rfg2+
2R4K/p1BbNBpb/qqR1b1PB/1B6/1rbp2Qn/1N3nrr/1Bk1P3/8 b - - 0 1 illegal: No proof kernel
1Rn1R1R1/bN5r/1BBb1pN1/4Qb1n/prRb1p2/1k2Pq2/3K2Pr/6rR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Kd7 b4 Kd6 b6 Kd5 b5 h5 b7 c5 b6 a5 Rh3 c3 Bb2 Kc4 d5 c2 d6 c1B d7 a4 Nc3 Rh7 Rf3 h3 Qd4+ Kb3 Qf2 h4 Nd5+ Be3 Be5 h2 Ra2 h1R Bd4 h3 Nc7 h2 Nb5 c4 Rh3 c3 Rc2 Bd6 Nf3 Nf6 Ne5 Nh5 Ng6 Nc6 b8R f6 b7 Rg1 Bb6 Bd4 Qe3 h1R Qe5 Na7 e3 Rh2 Rc1 c2 Kd2 Qh8 d8R Bf5 Re8 Nc8 Rh4 Qg8 Bd3 Qd5 Be4 B6c5 Nd6 Ra6 Bd3 Qf3 Bb5 Ra5 Bd7 Rb5 Bc6 Rb4 Rg8 Ne7 Rbe8 Nc8 Bc7 Bb6 b8R Ba7 Bb6 Rh8 Rf1 Rh7 Nb7 c1B+ Ke1 Ba3 Kd2 Rc4 Rc1 Bd6 Rh3 Rb4 Rc4 Qe4 Rf3 Qd5 Rf1 Qf3 Rf2 Ra1 Rf1 Re1 Rh1 Rc1 Qe6 Rg1 Qe5
Rb2N1K1/qR1r1QRP/5p2/BbpB1Rnn/4b1P1/b1p1n3/r1R5/3N2nk b - - 0 1 illegal: No proof kernel
3r4/qn1r2rB/4P3/2NpB1p1/2bRN1Q1/2pP1K2/3Nr1nq/Nq2kNrR b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c3 hxg4 Kf2 b5 Nf3 b3 Ke1 b4 Ng1 b2 Na3 b3 Nb1 Bb4 cxb4 Rh5 Nc3 Rh4 Nb1 Rh8 Kf2 Ke7 a4 Kf6 e4 Kg5 a5 Kh4 b5 d5 h3 g5 a6 c5 e5 f5 a7 g3+ Kf3 g2 d3 c4 e6 c3 b6 Qd6 b7 Nc6 b8N Nf6 Ra5 Rd8 Ke2 Kg3 h4 f3+ Ke3 f2 h5 Ba6 h6 Bc4 h7 Rd7 h8N Nd8 Nf3 g1R Nh2 Nb7 Nd2 b1Q Nf7 b2 Nc6 Qa2 Bh3 f1R Ra4 b1Q Na5 Nh5 Nab3 Rad8 a8N Rf2 Nb6 Nf4 Na1 Rfg2 Rb4 Qa7 Bg4 Qc7 Nd6 Rf2 N6e4+ Kg2 Nhf1 Re2+ Kd4 Rg7 Bh5 Qcb8 Bg6 Rdd7 Nd6 Kf2 Bh7 Ng2 Qa4 f4 N6e4+ Ke1 Ba3 Nc5 Bc1 Rd8 Nd7 Nb7+ Ndc5 f3 Ba3 Ba2 Rc4 f2 Bb4 Qg3 Ba5 Qh4 Bc7 Qh2 Be5 Bb3 Qe8 Ba2 Qh5 Bb3 Ra4 Bc4 Qg4 Rgd7 Nfg3 f1R Rb4 Rff7 Ngf1 Rg7 Ra4 Rf2 Rb4 Nf4 Ke3 Re2+ Kf3 Ng2 Ra4 Bb5 Rd4 Ba6 Bc7 Bc4 Be5
3BBbb1/n4bB1/p1nB1rq1/Pp2q1N1/pk6/1P1R1BNn/1b1RQ3/4K2b b - - 0 2 illegal: No proof kernel
b1B3qB/1N1Rkp1q/1r1pq2b/4p3/1Bq4N/6qQ/4PPRn/B2bn1BK b - - 0 2 legal: proof: b4 b5 c4 h5 g4 hxg4 d4 c5 a4 bxa4 b5 cxd4 c5 a5 Ra3 Ra6 Ra1 Rb6 cxb6 Bb7 Qc2 Ba6 Qd1 Bc8 h4 g5 h5 e5 b7 d6 h6 d3 b6 g3 h7 a3 Bb2 g2 Nf3 g1Q Qc2 g4 Rh2 a2 Nc3 a4 Qd2 a3 Nd5 g3 Qc3 g2 Ne3 Qe7 Nh4 Nh6 Nc4 Nd7 b8B Ng4 b7 Nc5 Bc7 Qe6 b8B Bb7 Na5 Ke7 Ba7 Ba8 Nb7 Bh6 Ba5 Rb8 h8B Qh1 Rb1 g1Q Rg2 a1Q Bb4 Qaa2 Ba1 Qac4 Rc1 a2 Rc2 Ne4 Be3 Nd2 Bf4 Qh3 Bh2 Qg3 Rb2 Qh1 Bg1 Nh2 Nd8 Rb6 Nb7 Qcc8 Rc2 Qcg8 Qc8 Qc4 Qh3 Qe6 Rc8 Ndf3+ Kd1 Ne1 Rd8 Q8g4 Rf8 Qgc4 Rd8 Bf8 Kd2 Qg8 Ke3 d2 Bb2 a1Q B2c3 Qaa6 Ba1 Qc3+ Ke4 Nd3 Ke3 d1B Ke4 Qac4+ Ke3 Ng4+ Kf3 Bh6 Qh2 Qcd5+ Kg3 Qf6 Nf3 Bf4+ Kh3 Qd2 Rg3 Qc3 Bg2 Qf5 Bf1 Qfh7+ Nh4 Bh6 Bg2 Qc7 Be4 Ne1 Bf5 Qd7 Rg2 Qc4 Kg3 Qdc8 Bd7 Qe6 Qh3 Qcc2 Bc8 Qcc4 Rh2 Q1e4 Rg2 Qhg7 Qh2 Qeh7 Qh3 Nf6+ Kh2 Qg3+ Kh1 Ng4 Bc5 Nh2 Ba3 Qa6 Bb4 Qac4 Rd7+
1Q3b1N/1bK1p2b/pR2rr2/2B1P2R/2q1n3/3Rb3/2p1PNqR/b1b1kB1R b - - 0 1 legal: proof: f4 d5 c4 dxc4 g4 h5 a4 hxg4 a5 Nc6 a6 Ne5 fxe5 bxa6 Na3 a5 Nb1 a4 Kf2 Kd7 Kg3 Ke6 Kf4 Kd5 h4 Kd4 b4 g5+ Kg3 c5 h5 f5 h6 a3 d3 f4+ Kg2 f3+ Kg3 a2 b5 c3 h7 c4 b6 f2 b7 a6 b8R c2 Bf4 c1B Nd2 Kc3 d4 Bb7 d5 Qc8 d6 Nf6 d7 Ne4+ Kh2 g3+ Kg2 g4 d8R Qc5 Rb1 a1B Ndf3 Rg8 h8R Rg6 R1h3 Re6 Qd6 Kc2 Rd7 c3 R8h5 Qc4 Bd2 Kd1 Rh2 c2 Ng5 Qc5 Bf4+ Ke1 Be3 Qd5 Bc5 Qc4 Rc8 Rb8 Rc6 Rc8 Rcb6 Rc6 Qb8 Rf6 R2h3 Rcd6 Nf7 Rde6 Kh1 g2+ Kh2 Rg6 Rdd3 Rgf6 R3h4 g3+ Kh3 Bd4 Kg4 Ba1 Nh3 g1Q Nh8 g2 Ng5 Qh1 Rh2 g1B Nh3 Bd4 Bg2 f1B Nf2 Ba1 Bh3 Rh6 Kf5 Bg2 Ra3 Bf3 Bf1 Bg2 Rah3 Bf3 R1b3 Qg2 Rd3 Rhg6 Rh1 Rh6 R3h2 Rhg6 Nh3 Bge3 Nf2 Rh6 R5h4 Bh5 R4h3 Bf7 Rh5 Bg8 Rg1 Reg6 Rgh1 Bh7 Rf6 Qa4 Ke6 Qa2+ Kd7 Qc4 Rb6 Re6 Kd8 Rhf6 Kc7
2nbr1q1/3R1b1k/N1r2nBP/B5p1/6R1/K2pb1pB/p3P2Q/q2BN1Bn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kd2 g5 b4 f5 c4 Kf7 Kc2 Kg7 Kb2 d5 h4 a5 e6 f4 b5 d3 h5 d2 h6+ Kg6 b6 d4 b7 g3 e7 f3 e8B+ Kh7 c5 f2 c6 d3 c7 Nc6 b8B Nce7 Rh4 Be6 c8B Bf7 Nc3 Ra6 Nd5 Rc6 Nc7 Nf6 Be6 Nc8 Na6 Bc5 Nf3 Be3 Bfh3 f1Q Rg4 a3+ Ka2 a4 Ba7 Qh1 Qg1 d1N Bb3 Nf2 Qh2 Qe1 Bb6 Nh1 Ba5 Qd1 Ne1 Qd5 Kb1 a2+ Kb2 Qe6 Rb1 a1B+ Ka3 Bad4 Bb2 Bb6 Bd4 Bd8 Bc2 Rf8 Rb7 Qb1 Rd7 Qa1+ Kb4 a3 Bd1 a2 Ka3 Qf5 Ba7 Qg6 Bc5 Qg8 Bcb6 Bd2 Bg1 Be3 Rd5 Be6 Bh5 Re8 Rd7+ Bf7 Bg6+
2b2K2/1n3p2/1p2P3/2Q1R1n1/R1Np1BNB/r2rp1Nk/2N1P1Nb/1rq1n1q1 b - - 0 1 illegal: No proof kernel
1BN4N/P1N3pR/B2N1bp1/1r2N1n1/q1Qn2q1/nk1b3R/3Pr1pp/b1K5 b - - 0 1 illegal: No proof kernel
1n3NQ1/2p3B1/2p1Bn1R/rRP4R/1K1kbbR1/n1Pp4/3pqr2/1RN3nr b - - 0 1 illegal: No possible last move, all moves rejected
5RNK/rN5N/3pq2k/1prb4/1Pr4b/1BNR2rP/p1n2p1B/1n2qQ1N b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 c5 d4 cxd4 a5 h5 gxh5 Qxa5+ Nd2 Qa4 Nb1 Qa2 Kf2 g5 Kf3 a5 Kg4 b5 Kf5 a4 b4 d6+ Ke4 g4 c4 f3 h3 g3 c5 f2 h6 g2 c6 a3 c7 d3 h7 d2 Nc3 Bb7+ Kf5 Nc6 c8N Be7 e4 Kf8 e5 Kg7 e6 Ra7 Nge2 g1R Ng3 Nf6 Bc4 Nd5 Qf1 d1R Bf4 Bh4 e7 Rd4 Bb3 Rc4 Rd1 f6 Ke6 f5 e8N+ Kg6 Be5 f4 Ne7+ Kh6 Kf7 f3 Nf6 Nd4 Rd3 Rhc8 h8N R8c5 Nh7 Nc2 Rh2 Bc6 Nh1 Rg3 Rg2 Qb2 Kf8 a2 Kf7 Qa1 Kf8 Qe1 Nf7+ Kh5 Nd8 Kh6 Nb7 Qe3 Qe2 f1Q Rf2 Qe1 Qf1 Qe4 Kf7 Qg6+ Kf8 Qe6 Bf4+ Rg5 Bh2 Rg3 Re2 f2 Ng8+ Kg6 Ree3 Kh5 Rf3 Kg6 Ne4 Nc3 Rf4 Nb1 Nc3 Bd5 Rf5 Re3 Rf7 Kh5 Kg7 Rg3+ Kh8 Kg6 Rf8 Kh5 Ngf6+ Kh6 Ng8+
1q1bN2b/krp3P1/n2R3p/1RQ1B3/K2n4/2Rqp1pb/P1R1B3/1NR1b1r1 b - - 0 1 illegal: No proof kernel
3Kn2R/rBp1p1bR/k2b3B/pnB5/B2qpPB1/1P4Q1/6qN/r1b1N2b b - - 0 1 illegal: No proof kernel
b5BN/2k1b3/4qpR1/2NBbPp1/1n4b1/BK1n1b1R/pp2B1Pn/2B2Q1r b - - 1 2 legal: proof: h4 e5 a4 b5 d4 bxa4 b4 exd4 b5 a5 h5 c5 Qd2 g5 Qc3 Ra6 Qb4 Rg6 hxg6 cxb4 Kd2 d5 c4 Kd7 Kc2 h5 f4 h4 e4 b3+ Kb2 h3 e5 f6 b6 h2 c5 d3 f5 a3+ Kc3 a2 g7 d4+ Kc4 a4 b7 d2 e6+ Kc7 e7 d1B e8B a3 c6 d3 Nh3 d2 Nf4 Qe7 Ng6 Bf3 Be2 d1B Nd2 Nh6 g8B Na6 Bef7 Ng4 Ne4 Nb4 Bd5 Qe6 Nc5 Be7 Rb1 Rh3 Nh8 a1B Rb2 a2 b8B+ Kd8 Rd2 Bb7 Rd3 Ba8 Bd6 Be5 c7+ Kc8 Rc3 b2 Re3 Nc2 Kb3 Rh4 Re1 h1N Rd3 Nhf2 Rh1 Rh7 Rh6 Nh2 Rg6 Bg4 Rh3 Nd3 Nd7 Rh4 Ba3 Rh7 Nc5 Rh4 Bf1 Bdf3 Be2 Rh6 Ne4 Kd7 Nc5+ Kd6 c8Q Ncb4 Qe8 Kc7 Qb5 Nf1 Rg3 Rh1 Rh3 Nh2 Qa6 Bf4 Qc4 Be5 Qf4 Be4 Qf2 Bef3 Qf1
1q3r2/N1k1N3/Qnp2p1N/B1KPRqN1/rRpp1Nb1/3P2n1/5nq1/5B1n b - - 0 1 illegal: No proof kernel
B2R3b/1qn2R1K/pp1kn1N1/7R/p3q1NB/Pr2pPq1/R2bb3/q1Q3R1 b - - 0 1 illegal: No proof kernel
B1rb2Qb/bN1Bppbk/RBB5/3n3p/Np1B4/6R1/P2rP3/bb4nK b - - 0 1 illegal: No proof kernel
5RrB/1pp1N1Bp/2P5/p2N2KB/k1Qb1BB1/r1Rq1b1b/4rpP1/n2q4 b - - 0 1 illegal: No proof kernel
3nn1K1/2BB1Q2/2p1N2p/N1p5/2bnqpB1/RrBp2PP/qB4k1/3qr2R b - - 0 1 legal: proof: b4 g5 f4 gxf4 c4 e5 d4 exd4 c5 Bh6 c6 bxc6 a3 Bf8 b5 Bb4+ axb4 c5 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 Kh5 Ke4 h3 a5 g3 d5 b6 f5 b7 d3 e3 d2 b5 h6 Kg6 d4 Kg7 f3 b6 a4 Bc4 f2 Ba3 f1Q Ne2 Kf3 e4 f4 e5 d3 e6 Qg2 e7 Qd5 e8B Be6 Kf8 Nc6 b8B Nd8 b7 c6 Qb3 d1Q Be5 Qe4 Bab2 a3 b8B a2 Bd7 Ra3 Bbc7 Nf6+ Kg7 Rf8 Bec3 Re8 Nd2+ Kf2 Qb7 Rb3 Nd4 Re7+ Kf8 Ne8 Qa7 Bg8 Ne6 Qh2 Bd5 Kg2 Nc4 Bf7 Na5 Bg8 Rc1 a1N Qb7 Nc2 Ra1 Nd4 Ra3 Qef3 Be4 Bf7 Bf5 Qe4 Bg4 Bg8 Ng5 Bc4 Qa7 Qef3 Qb7 Re1 Ne6 Qe4 Kg8 Qg1 Qa7 Qf2 Ba1 Qa2 Bab2 Bb5 Qb7 Ba6 Qb4 Bb5 Qc4 Ba6 Qd5 Bb5 Qf5 Bc4 Qf7
n6B/5pPb/Nb1p1p1K/nRnP4/p3BB1n/BRk3n1/rp2q3/Q1N2B2 b - - 0 1 illegal: No proof kernel
2k1q1n1/4pnRp/2R1R1rB/1Qp2bn1/N1N2K2/2r1P1Pp/1p2q1B1/2n2R1R b - - 0 1 legal: proof: c4 g5 b4 d5 h4 gxh4 g3 dxc4 b5 Bh6 b6 Bf4 g4 Bg3 fxg3 axb6 Ba3 b5 Bc1 b4 Kf2 Kd7 Ke3 f5 d4 c5 a4 b5 d5 b3 d6 h3 a5 b2 a6 b4 g5 b3 a7 c3 g6 c2 g7 Nc6 Nf3 Ne5 Bg2 Nf7 Nc3 b1N Na4 b2 Kf4 Qe8 Qd3 Nc3 Nd2 Ne4 Nc4 Neg5 Qb3 Rb8 a8R Rb4 Qd3 Rb3 Ra6 Rc3 Rc6 Kd8 Be3 Kd7 Raf1 c1N Ra6 Kd8 d7 Kc7 d8R Be6 Rd4 Kc8 Bd2 Bd7 Re4 Be6 Ke3 Bd7 Ree6 f4+ Kf2 f3 Ke3 f2 Kf4 Bc6 Rb6 Be4 Ra6 Ngh6 g8R Bf5 Rgg6 Rg8 Be3 Ne4 Rg5 Rg6 Rg4 Neg5 Qd7+ Kb8 Qb5+ Kc8 Rab6 Ng8 Rbc6+ Kd8 Bd4 Kd7 e3 Kd8 Bg7 Kd7 Re1 Kd8 Bh6 f1Q+ Bf3 Qd3 Bg2 Qe2 Ref1 Nf3 Qb7 Rf6 Rg6 N3g5 Rg7 Rg6 Qb5 Kd7 Ra6+ Kc8 Rac6+
1rrb3k/2p1p3/4p3/3PKp1p/1Rr2NbN/n1B1n2P/2BBB2Q/2B1b1rR b - - 0 1 illegal: Other
BB1Rbr2/2QN1p1K/NRn5/bk2NP2/6n1/p2qn1b1/Pbnb4/N1nr3N b - - 0 1 illegal: No possible last move
2BR2N1/Q1k1p2N/2q1Pp1q/4rq2/1Br2Pb1/1p1N1nR1/3Nb2n/KNbb3b b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 Kd2 d5 e4 Kd7 g4 h5 c4 b5 Kc2 b3+ Kb2 f6 a4 h3 c5 b4 c6+ Kc7 f3 d3 a5 h2 e5 d4 g5 h4 g6 d2 g7 d3 a6 h3 a7 Qe8 Ne2 Nd7 Rg1 h1Q Rg3 h2 Bh3 Nh6 g8N Ng4 Qg1 d1B Bd2 Rh5 Nf4 Be2 Ra4 Rb8 Ka1 Bh6 Bc3 d2 Nd3 Be3 f4 d1B Ra2 Qg6 Rd2 Qh6 Qf2 Qd5 Qg1 h1B a8N+ Kd8 Nc7 Nh2 Bg4 Rb5 Bf5 Rc5 Qf2 Rc4 Ne6+ Ke8 c7 Qc6 Nf8 b2+ Ka2 Rg5 Nh7 Rh5 Rc2 Bc1 Rd2 Rg5 Qa7 b3+ Ka3 Bg4 Bb4 Ba6 c8N Kd8 Nd6 Rh5 Ne4 Rg5 e6 Ne5 Bg6 Bb5 Be8 Nef3 Bd7 Re5 Bc8 Qb7 Ne1+ Kc7 Rd8 Ba6 Nd3 Bb5 Nec3 Ba6 Nd2 b1Q+ Nb2 Qd3 Ncb1 Qf5 Ne4 Be3 Nd3 Bb5 Kb2 Bc1+ Ka1 Ba6 Qg1 Qc6 Ned2 Rce4 Nc5 Bae2 Nd3 Rc4 Qa7+
3bnnNr/1kp1r1Nn/2N1q1q1/4RN2/3N1Rqp/b1Pb1bpP/6B1/K1Q1B3 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 d4 Kd7 Kd2 Kc6 f4 b5 a4 g5 f5 e5 h3 h5 a5 e3+ Kd3 e4+ Ke2 g3 c3 g2 f6 g4 f7 b3 a6 b2 a7 b4 d5+ Kb7 d6 b3 d7 Qg5 Na3 b1B Qc2 b2 Kd1 Nf6 Ra2 Ne8 Nc4 Ba3 Nf3 g1N Nd4 Nf3 f8N g3 Nfe6 h4 Bg2 Qg4 Rf1 Ng5+ Rf3 Nh7 Ng7 e2+ Kd2 e1B+ Kd1 e3 d8N+ Ka6 Bd2 Nd7 Nd6 Bb7 N6f5 Ndf8 Qc1 Bd3 N8c6 b1Q Rb2 Bf2 Be1 e2+ Kd2 Rd8 a8N Rd7 Rb5 Re7 Nb6 Ba8 Rd5 Kb7 Nd7 Qb6 Re5 Qa6 Nc2 Bd4 Nf6 Qb6 Ng8 Qb1 Rd5 Bf6 N2d4 Qb6 Rf4 Bg5 Nb4 Qg6 Rc5+ Ka7 Re5 Bf3 Nbc6+ Kb7 Rd5 Re3 Re5 Bd8 Rc5 Re7 Re5 Ba6 Kc2 Bb5 Bd2 e1Q Kb1 Bd3+ Ka1 Qe3 Be1 Qe4 Ra5 Qee6 Re5
1B2n1K1/4rR2/1q2R1np/1bpN2NP/Qn4B1/n1b2pb1/p1PRrR1R/n6k b - - 0 1 legal: proof: e4 d5 a4 dxe4 f4 g5 a5 gxf4 a6 bxa6 Ra2 a5 Ra1 a4 Ke2 Kd7 g4 Ke6 b4 Ke5 h4 f5 b5 c5 h5 a5 g5 a3 g6 a2 d3 f3+ Ke3 h6 b6 a4 g7 f4+ Kf2 e3+ Ke1 f2+ Ke2 a3 Kf3 e2 b7 e1N+ Ke2 f3+ Ke3 Rh7 Rh4 Qb6 Nc3 Bd7 Bh3 Na6 b8R Nb4 Re8 Nf6 g8R Bb5 Rf4 Bg7 Bg4 e6 Re7 Ne8 Nd5 Ra4 Rb1 a1N Rff7 a2 Nh3 Bf6 Ng5 f1N+ Kf2 Ne3 Kg3 Nc4 Bf4+ Kd4 Bb8 e5 Re6 e4 Kf4 e3 Kf5 e2 Kg6 Ng2 Qh1 e1B Qh4 Bc3 Rf1 Na3 Rf2 Be5 Rgg7 Bg3 Rg8 Rh8 Rgg7 Rg8 Kh7 Nf4 Rgg6 Rg7+ Kh8 Rh7+ Kg8 Qd6 Ree2 Ra7 Rge6 Ng6 Rg2 Qb6 Ref2 Ne5 Nf6 Ke3 d4 Kf4 d5 Re7 d6 Ng6 d7+ Qd6 Re5 Qb6 d8R Re6 Rd6 Re7 Red5 Re2 Rd2 Ke3 Rf8 Rb7 Rf7 Re7 Re6+ Bce5 Bf5 Nd5 Qa4 Nb4 Bg4 Qa5 Nfe4 Bc3 Rf1 Qb6 Nf6+ Bge5 Rh1 Kf4 Rf2 Kg3 Nd5 Bf4 Rff1 Kg2 Rhg1+ Kh2 Rg3 Bfe5 Rf2+ Kh1 Rgg2 Bg3 Rh2+
rn1Nn1KR/2b1Q3/R2pBN1k/pR3p2/2Rq1P1b/1b1n1r2/PBb1Rb1p/8 b - - 0 1 legal: proof: d4 e5 c4 exd4 h4 b5 h5 bxc4 h6 gxh6 Kd2 h5 Ke1 h4 Kd2 h5 e4 a5 f4 f5 g4 Kf7 b4 Kg6 g5 c5 b5 d6 e5 d3 Ke3 h3 e6 h4 e7 d2 e8R c3 b6 c4 Kd4 c2 Kd5 c3 b7 h2 Qe2 d1N Nd2 h3 Nc4 Nb2 Nf3 Qb6 Qe7 Nd3 Bb2 c1B Nce5+ Kh5 g6 c2 g7 Be3 Bg2 c1B Nf7 Bf2 Nd8 Kh6 Ng5 Bce3 Nh7 Bd7 Rad1 Ba4 Ke6 Bb3+ Bd5 Qd4 Kf7 Nf6 g8R Bh4 Rdf1 Bef2 Rc1 Bc2 Rhe1 h1B Re2 h2 Be6 Bd5 Rg7 Bdb3 Rg8 Na6 b8R Bg7 Ref8 Ne8 Rb5 Bgf6 Rg7 Nb8 Rgg8 Bb1 Rc6 Bfg5 Ra6 B1c2 Rg7 Bf6 Rg1 Rg8 Rc1 Rg3 Rh8 Rf3 Kg8 Bb1 Rc4 B1c2 Qd7 Be7 Nb7 Bd8 Qe7 Bb6 Nd8 Bc7 Nf6+
K6N/p1qB1pB1/P3nq2/1pp2bNR/3n1qNq/1k2rNb1/2P3QR/rq4N1 b - - 0 1 illegal: Other
2KN1qRr/2n4p/N1Q1p1R1/B2R3R/p1rb1npn/2kB2P1/n2bP2R/1b2b3 b - - 0 1 illegal: No proof kernel
n1B4K/BB2kpR1/1rp1BP1p/1NNb2p1/4p3/B1PqQb2/1Rn4b/n3r1b1 b - - 0 1 illegal: No possible last move, all moves rejected
3R1N1n/3Rbqr1/2PP4/1kqrb3/2N3nN/3qR2B/B1q1Q1N1/b1n4K b - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 gxh4 axb5 f5 exf5 Qa5 Ke2 Qb6 Ke1 Qd8 c4 a5 Bb2 Ba6 bxa6 d6 Bd4 cxb4 c5 Qb6 c6 Qd8 Bc5 dxc5 d4 e5 f4 h5 Kf2 h3 g4 e4 g5 a4 d5 c4 g6 e3+ Kf3 h2 Kg2 a3 g7 e2 f6 e1B f7+ Ke7 f5 Kd6 a7 Kc5 f6 h4 Qh5 h3+ Kf3 a2 Nd2 b3 Bg2 b2 Ne4+ Kb5 Qf5 b1Q Nf2 c3 Qe5 c2 Qh5 c1N Nd3 Rh7 Bf1 Ne7 g8B Bc3 Ne1+ Qd3+ Kf2 Be5 d6 Qc7 Ngf3 Ng6 Ng2 Nd7 Nfh4 Nh8 Qe2 Be7 f8N Rg7 f7 Nf6 Nfg6 Rb8 a8R Qb7 Rg1 h1Q f8N h2 Be6 Re8 Rd8 Qc7 Bb3 Qb7 Rb1 a1B Rb2 Qc7 Rc2 Qa5 Ba2 Qa4 Rc4 Qac2 Re4 Qc5+ Re3 Ng4+ Kf3 Qc2 Rd7 Ra8 Rd8 Ra4 Rd7 Rd4 Rd8 Rd5 Rd7 B5f6 Ne5 Qc5 Nc4 Bfb2 Kg3 Be5+ Nf4 Qc2 Bh3 Qhe4 Rf1 Qh7 Kg2 Qh5 Kh1 Qf7 Ra3 Qd3 Rf3 Qc2 Ra8 Qd3 Re3 Qc2 Rad8 Qd3 Kg2 h1Q+ Kg3 Qe1+ Kg2 Qed2 Kh1 Q2c2 Nfg2
1q6/bP2RnRr/BbB1q3/1nk1N3/KQ1N1b2/R1r2rnB/P3Rb2/8 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 d3 c5 Be3 c4 Bc1 c3 Be2 c2 Bb2 b6 Bd4 Ba6 Bc5 bxc5 b6 c4 Bf1 c3 Na3 Bb5 Nb1 Bc4 dxc4 Qc8 Na3 Qd7 Nb1 Qd8 g4 Kd7 f4 Kd6 g5 c1B Kd1 h5 Kc2 e5 Kb3 e4 g6 h3 f6 c2 b7 e3 f7 h2 f5 e2 g7 e1B f6 h4 Nd2 h3 Ndf3 Be3 Nd4 c1B Ngf3 Nc6 Rg1 h1Q Ne5 Kc5 d6 h2 d7 Na7 Ka4 Nh6 g8B b3 Rg7 Qb8 d8R b2 Re8 b1R Re7 Rb3 Bh7 B1f2 Be4 Bf4 Bc6 Bce3 Re1 Qe4 Re2 h1N Rd2 Kb6 Re2 Ng3 c5+ Ka6 Bd7 Rc3 c6 Kb6 c7 Rh7 c8B Kc5 Bc6 Qd5 Bch3 Qe6 Rg6 Bg7 f8R Nf7 Rfe8 Bgh6 Rg7 Bhg5 Nef3 Bc7 Ne5 Bgf4 Rf8 Ba5 Rc8 Nb5 Rd8 Nfd6 f7 Ra6 f8Q Nf7 Bcg2 Rd6 Bc6 Bb6 Rde8 Bg1 Rc8 Bef2 Rce8 Rf3 Re3 Rd8 Ra3 Rc8 Bd3 Na7 Ba6 Nb5 Re3 Ba7 Ra3 Qf5 Bd5 Kb6 Rc7 B2e3 Rc2 Rc6 Nb3 Qe6 Re2 Rc3 Bc6 Bgf2 Qb4 Bd4 Re7 Bc5 Be8 Bce3 Nd7+ Kc6 Ne5+ Kd5 Bd7 Bec5 Nd4 Bcb6 Qb2 Kd6 Bc6 Kc5 Qb4#
4q2r/b1QN2R1/K3N1p1/1BN1bq2/bqP3qq/2P2R1N/1B1rB3/1kn5 b - - 0 1 legal: proof: f4 e5 a4 b5 axb5 c5 d3 c4 dxc4 Qe7 Be3 Qf6 Bc1 Qd8 b4 exf4 g4 a5 g5 axb4 g6 Na6 bxa6 hxg6 Ra2 g5 Ra1 g4 Kd2 Ke7 Kd3 Ke6 e4 Ke5 h4 f5 c3 d5 h5 f3 a7 g3 h6 b3 h7 g2 Bh6 f2 Bg5 f4 Be7 b2 Qc1 g6 Ra2 f3 Rh4 d4 Ra4 Nh6 Qc2 Bd7 Rh3 Nf7 Be2 f1Q Nd2 b1Q Nb3 f2 Ba3 Qe8 Rf3 Bd6 Bb2 Qfe1 Nc5 f1Q Nh3 Rd8 a8N g1B Ra7 Qh4 Nc7 Ba4 N7e6 Bb8 Re7 Ba7 Rd7 Bh2 Rc7 Nh6 Rb7 Nf5 Rd7 Ng3 Rg7 Qbd1+ Qd2 Qb3 Qd1 Qb4 Qa1 Bd7 Qa5 Ba4 Qc7+ Rd6 Re3 Qf5 Rf3 Rf8 h8N Rg8 Kd2 d3 Ke3 d2 Nf7+ Kf6 Nef4 d1Q Ne5 Rh8 Ne6 Rd2 Nd3 Nh5 Kd4 Be5+ Kd5 Bd4+ Ne5 Nf4+ Kd6 Nd3 Kd5 Nc1 Kd6 Bc2 Kd5 Qf7 Kc6 Qe8+ Qd7 Ba4+ Kc7 Qa5+ Kb7 Qb4+ Ka6 Qg1 Qc7 Qgg4 Nc6 Qff4 e5+ Kf5 Nb7 Ke4 Nb8 Qff5 Nd7 Na2 Ned8 Nc1 e6 Bf6 e7 Be5 Ne6 Be3 Bd1 Kd3 Be2+ Kc2 Nbc5 Bf2 Qa7 Kb1 Qc7 Qef8 e8B Bfd4 Nb7 Ba7 Nbc5 Q8f7 Ndf8 Qfe7 Bb5 Qe8 Nfd7
8/2K1Qn1B/RB4pq/2N1Rq2/2q1pR2/1n1P1kB1/q2Pr2q/N1rRn3 b - - 0 1 legal: proof: g4 f5 e4 fxe4 b4 b5 a3 e6 g5 a5 g6 hxg6 a4 g5 axb5 g4 Ra2 a4 Ra3 Ra5 Ra1 Ra8 Ne2 Bb7 Ng1 Bd5 Ra3 Bc5 Ra2 Bb6 Ra1 Ba5 bxa5 Kf7 Nf3 Kf8 Ng1 Ke8 Qf3 Bc4 Qa3 Bd3 cxd3 d6 Qc5 d5 Qc4 dxc4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 h4 c3 b6 e3 a6 a3 h5 c4 b7 a2 h6 e2 a7 e1N h7 c2 Bb2+ c3 Bh3 c1Q Nf3 g3 Ng5 g2 Rf1 g1Q Na3 Qc8 Ne4+ Kg6 Ke5 Kh5 Kd6 e5 f4 c2 f5 Nh6 f6 Qf5 f7 Rc8 f8Q Nc6 h8R Na5 b8B Qh2 Rf4 Nb3 Qe7 g6 Bd4 Qb2 Bb6 c1Q Nc5 Qc4 Rd1 a1Q Re8 Qaa2 Nc2 e4 Na1 Qg7 B8c7 Nf7+ Kc6 Rab8 a8R Qh6 Ra6 Rb7 Qf8 Kg5 Re5 Kh5 Bg4+ Kh4 Qe7+ Kg3 Bh3 Rh8 Bd6 Rbb8 Bdc7 Rbc8 Kb7 Qfh5 Be6 Qf5 Rh4 Kf3 Bb8 Ng5 Bg8 Nf7 Bh7 Qca4 Ne6 Rc1 Nc5 Qc4 Kc7 Qhg5 Bg8 Rh5 Bh7 Qh6 Rg4 Rg5 Rh4 Rg2 Rf4+ Kg3 Rd5 Nf3 Kc6 Ne1 Rg4+ Kf2 Bg3+ Ke2 Re5 Kf3 Kc7 Re2 Rf4+
q7/2Nn1n2/N3P3/1B1b1kNK/nNPB1p2/1nBQ1R2/5npR/3b1nb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 b4 g5 b6 a5 b7 Rh3 b5 Re3 Bxe3 Ra6 Bc1 Re6 b6 Re3 Bxe3 Bd6 Bc1 Bf8 Kf2 Ke7 h4 Ke6 c4 f5 e4 d5 e5 g3+ Kf3 g2 h5 d3 h6 a4 h7 a3 h8N g4+ Kf2 d4 Nh3 g1N Ra2 d2 Bg2 d3 Bc6 f3 Kg3 f2 Rh2 Nh6 Ng6 Bc5 Ne7 f1N+ Kh4 g3 Kh5 g2 Nc3 f4 Ned5 Ne2 Ng5+ Kf5 e6 Bg1 Nb4 Nf7 Ncd5 Nc3 Nc7 Na4 Bb5 Nd7 b8N Bb7 Bb2 Bd5 N8a6 Qa8 Qc2 d1N b7 Nf2 b8B Ndb6 Ra1 a2 Ba7 Nd7 Re1 a1N Bc3 Nb3 Bad4 Nac5 Re3 Na4 Qe2 d2 Rf3 d1B Qd3+
2NB1Rb1/1pK3n1/1pBNqQ2/2P2R2/b5q1/3bqP2/1Bp2Rr1/2Bb3k b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 g5 b4 gxh4 a5 Na6 b5 Nb4 b6 axb6 a6 Rb8 a7 Na6 axb8B d5 c3 d4 Qg4 d3 Qf3 Bg7 Qd1 Bd4 cxd4 Bh3 Ra4 Bg4 Ra1 Bc8 Ba3 c5 Qb3 c4 Qb2 c3 Qc1 c2 Qd1 Nb4 Bb2 Nd5 Bc1 Nc3 dxc3 Bd7 Bd6 Be6 Bb8 Bc8 Kd2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 Kf5 g3 h5 c4 d2 c5 h3 d5 h4 d6 h2 d7 h3 Bc7 Qh4 d8B Nf6 Bb5 Nh5 Nc3 Bd7 Nd5 Qg4 Nf3 Ng7 Qf1 d1B Bc6 Rg8 Nd2 Be6 Rg1 h1B Rg2 h2 Ne7+ Kg5 Bb8 Bb3 Ra3 Ba4 Nc4 Kh5 Nd6 Kg5 Kd2 e3+ Kc3 e4 Kd4 Kh5 Kd5 e2 Rc3 e1Q Rf3 e3 Nec8 e2 Ke5 Qd2 Rf5+ Qdg5 Bb2 e1Q+ Kd5 Qe3 Bc1 Qh3 g4+ Kh4 Bbc7 Qge7 g5 Qg4 g6 Kh3 Bb2 Qe8 Bg5 Q8e7 Bd8 Qf6 Nc4 Qf7+ Kd6 Qf6+ Kc7 Qfe6 Rg1+ Bg2 N4d6 h1B Bh6 Kh2 Bf4+ Qeg3 Bfc1 Be4 Rg2+ Kh3 Qd3 Qe3 Qc3 Bd3 Qd4 Q3e4 Qf6 Qe3 Rg1 Kh2 Rf1 Bd5 f3 Ba2 Rf2+ Kh1 Qf7 Rh8 Qe7 Rh2 Qf6 Nh5 g7 Rg2 g8R Ng7 Qe7 Q6e4 Rgf8 Bg8 Qf7 Qe6 Qf6
r1b2B2/RN1p1R1p/KR1RPQp1/1p2bk1n/B1q5/1PN1b3/4bp2/7N b - - 0 1 legal: proof: h4 b5 a4 e5 f4 exf4 d4 c5 a5 cxd4 h5 Na6 g3 Rb8 h6 Rb6 axb6 Nc5 Nd2 a5 Nb1 Ne6 Ra4 g6 Ra1 Ng7 hxg7 fxg3 Kd2 Ke7 c4 Ke6 e4 f5 c5 a4 e5 f4 b7 d3 Kc3 d2 Kb4 g2 b8R a3 Nh3 g1B Rb6+ Kf5 Ka5 f3 c6 a2 e6 Qe7 c7 Qd6 Qa4 d1B Bh6 Be2 Nc3 Bb7 c8N Bd1 Bd3+ Be4 Ka6 Ke5 Bc2 Qb4 Nd6 Qc4 Nb7 Kf5 Nf2 Nf6 g8R Bg7 Rf8 Be2 Rf7 Rg8 Rd1 a1Q Rdd6 Rh8 Rh4 Qf1 Nh1 Be3 Bb3 f2 Qb4 Qa1+ Ba4 Rg8 b3 Bh8 Bf8 Bg7 Re7 Nh5 Re8 Bf6 Ra8 Be5 Ra7 Qb2 Bg7 Ra8 Rf4+ Kg5 Rf7 Qa1 Re7 Kf5 Bf8 Bd5 Nd1 Qad4 Nc3 Qh4 Rf7+ Qf6 Qc5 Bg2 Qd4 Bd5 Qh4 Be4 Nd8 Bb7+ Ka5 Bc8 Nb7 B5f4 Ka6 Be5 Qxf6+
4bnbK/nB3rP1/1N5k/3R1n1n/qrnq3R/8/QBq3PR/bB3BN1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 a4 c5 d4 cxd4 f4 b5 axb5 axb4 Rh3 exf4 Rh2 Qa5 Rh1 Qd8 Kd2 d5 Kd3 h5 c4 f5 e4 Kf7 g6+ Kg7 c5 b3 b6 h4 c6 h3 e5 h2 c7 f3 b7 f4 e6 f2 e7 f3 e8B b2 Bc6 Ra7 Qc2 Nf6 Qd1 Be6 c8B Nbd7 b8R Rh4 Rb6 Bg8 Be2 f1N B6b7 f2 Bf4 Nd2 Na3 f1B Qc1 b1N Rd6 Nc3 Rb1 Nh5 Qb2 Nb5 Ba8 Nc4 Bg3 Kh6 Qa2 Bg7 Ra6 Nf8 Bf5 Rf7 Bc7 Na7 Ra5 Qd7 Bb7 Qa4 Be5 Bf6 Rb3 Rf4 Kc2 d3+ Kc3 d2 Rb4 d1Q Bb1 Qc1+ Kd3 d4 g7 Rh4 Nc2 Qf4 Ne3 Qg4 Nd5 Qc8 Nf4 Qc5 Ke4 d3 Kf5 d2 Rab5 d1Q Nd5 Qcd4 Nb6 Qdc2+ Bd3 Be2 Rd5 Bf3 Rdb5 Bc6 Rd5 Re4 Bf1 Be8 Rb3 Qdd2 Rh3 Qdd3 Bb2 Qd4 Rh4 Ng6 Ne2 Nf8 Rg1 h1N Rh2 Nf2 Rgh1 Nd1 Ng1 Ng6 Re5 Nde3+ Ke6 Rg4 Rd5 Nf5 Rh4 Rg3 R1h3 Rb3 Rh2 Rb4 Bd3 Qe3+ Be4 Bh7 Be5 Rc7 Bd3 Qe4 Bf1 Qg4 Bg3 Ba1 Be1 Qd4 Bc3 Bd7+ Kf7 Nf8 Na8 Bg6+ Kg8 Bde8 Bb2 Bh7+ Kh8 Bg8 Nb6 Rd7 Bc3 Rf7 Bb2
2r5/BkPbN3/b2B1R2/2r1nN1b/1qb1q1qn/1Q1P4/R1bB2B1/3b2KR b - - 0 1 legal: proof: f4 e5 e4 exf4 h4 g5 b4 gxh4 Ba3 c5 Bc1 cxb4 a3 d5 exd5 b5 Ne2 b3 Ng3 b2 Ne2 b4 Ng1 b3 Qg4 Qc7 Qd1 Bb4 axb4 Qd8 Kf2 Kd7 c4 Kc7 g4 h5 d6+ Kb7 d7 a5 c5 f5 g5 f3 g6 h3 g7 h2 b5 a4 b6 a3 Bc4 a2 Ne2 f4 Ng3 h4 Be2 h3 Qf1 Qe7 d8B Nh6 g8R Ra5 Rg1 h1B Rg4 h2 Bc7 Nf5 Be5 Nd7 Rg6 Nh4 Bd4 Qe4 Nh5 Ne5 Ng3 Bd7 Qh3 Rc8 Nc3 b1Q Qg4 b2 Kf1 f2 Nd5 Bf3 Nf5 h1B Qg3 Bh5 Qb3 B1f3 Rh1 Bfg4 Bd3 Bd1 Rf6 Rb5 Be3 Qb4 Be2 Q1e4 Bf3 b1B Bg2 Bbc2 Nde7 Ra5 Rb1 a1Q Rb2 Qaa4 c6+ Ka8 c7 Rc5 Ra2 Kb7 Ba3 Qac6 Rf7 Qg6 Rf6 Qg4 Bf3 Ka8 b7+ Ka7 b8B+ Kb7 Ng3 Nf5 Kg2 f1B+ Kg1 Ba6 Bg2 f3 Ba7 Nh4 Ngf5 f2+ Kh2 f1B Kg1 Bfc4 d3 Bf3 Bf4 Bfd1 Bac1 Nf7 Bd6 Ne5 Bd2
1bR4B/1n4nB/n5rN/1BPk2Pq/2q1n2B/4n2r/3qRq2/KQRN2b1 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 Ke7 c4 Kd6 Kc2 a5 e4 h5 b4 f5 Kb2 f4 g5 f3 b6 a4 b5 d3 b7 a3+ Ka2 h4 b6 f2 Nh3 g1B Qe1 d2 Qe3 d1N Qe1 g2 Qc3 Nh6 Qe3 Nc3+ Kb3 a2 Kb2 Ra6 Qe2 Nf5 Qe1 Ng7 Be2 f1Q Nf2 h3 Ng4 h2 Bd3 Rh3 e5+ Kc5 e6 d5 e7 d4 e8B Ne4 Bf4 Bd6 Nc3 Qe2+ Bc2 d3 Bg3 d2 Rc1 a1N Nd1 Nb3 Bb5 Na5 Ka1 Kd4 c5 Kd5 Nh6 Qc4 Bh4 Be5+ Nb2 d1N Qf1 Bf4 Bd3 Ne3 Nd1 Qd6 Qe1 Bg3 Qb4 Qf4 Qb1 Qf2 Bc2 Qd2 Bd3 Nd7 b8B Nb7+ Ba4 Bf4 Be5 Nb8 Bd4 Nd8 b7 Rg6 Bdc2 Na6 b8R Nb7 Rc8 Bb8 Be8 Bf2 Bd7 g1Q Bb5 Qgf1 Rg1 h1Q Rg2 Bg1 Re2 Qf2 Be5 Qhf3 Bd3 Qh5 Bb2 Ngf5 Bh8 Ng7 Qb2 Nf6 Bf5 Ne4 Qb1 Re6 Bh7 Rd6 Rf8 Rg6 Rc8
4rq1B/1Q1q1b2/1R1n1N2/NP2Bb1n/1nn2qR1/2q3P1/1BB2kNK/r3r3 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 g5 h4 gxh4 b4 e5 c4 exf4 c5 b5 axb5 Bd6 Qc2 Bc7 Qd1 Bb6 cxb6 Ke7 Qd2 Kf8 Qd1 Ke8 Kf2 Ke7 e4 Ke6 g3 Ke5 Kg2 d5 b7 h5 b6 a5 b5 f5 Qb3 h3+ Kh2 f3 Qe3 f2 Ra4 h4 Ne2 f4 Rg1 f3 Qd3 Nc6 Nbc3 Bf5 Ra3 a4 Bb2 Nb4 Nd1 Nf6 Qb1 Nh5 Ra2 a3 Kh1 h2 Bg2 f1N Qd3 f2 Qc2 Re8 Qc5 Ne3 Re1 f1Q+ Ng1 Nc4 b8B+ Nd6 b7 Qf4 Bc1 d3 Ne2 d2 Qc8 d4 Ne3 d3 Nd4 d1N Nb3 d2 Na5 Kd4 e5 Nb2 e6 d1Q e7 Nbc4 Be4 Qdf3+ Ng2 Qd7 Ra1 a2 Bc2 Qa3 Rb1 a1Q Re6 Q1c3 Bc7 Ra7 b8B Ra8 Qb7 Ra7 Ne3 Ra8 Kg2 h1R Bb2 Re1 Kh2 h3 Ng2 Ra7 Ra1 Ra6 Rg6 Ra8 Rg4 Ra6 Nh4 Ke3 Ng2+ Kf2 Bd8 Qf6 Bdc7 Qf8 Ba7+ Qae3 Bad4 Ra7 Bh8 Qc3 Nc6 Raa8 Ra6 Ra7 Rb6 Raa1 Na5 Kf1 Kh1 h2 Ne3+ Ke2+ Kg2 h1B+ Kh2 Bf3 Ng2 Bd5 Bb8 Kf2 Bc7 Ra8 e8N Bf7 Nf6 Rae8 Bb8 Ne4 Be5 Ned6 Rg6 Na3 Rg5 Nac4 Rg4
1NRbn1bq/nb2r2N/Br1r1P1N/1q6/R2N3Q/2KP2k1/3Bb3/n2R2r1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 f4 Kf7 g4 Kg6 f5+ Kg5 d6 Kf4 b6 h5 d3+ e3 b7 e5 d7 c5 g5 h3 g6 b3 g7 h2 Bd2 c4 Ra5 c3 Ra7 e4 Ra5 h4 Nf3 b2 Qe2 h3 Nh4 c2 Ra2 c1R+ Qd1 Ra6 Nc3 b1Q Rb2 Rhh6 Rb6 Kg3 Nf3 e2 Nb5 Nc6 b8R Nf6 g8N Bb7 Nbd4 Na7 Nc2 Be7 Ng1 Ne8 Bg2 Rd6 f6 Qb5 Rc6 Rb6 Rc4 Qc8 Bf3 Bd8 Nh6 Bd5 Bg4 Bg8 Nf3 Rb1 Rf1 h1B Ncd4 h2 Ng5 Bf3 Ra4 h1B Nh7 Rc1 Be6 Rc7 Bc4 Rcb7 Be3 Bh5 Kd2 e1R Kc3 Be2 Bc1 e3 Bd2 Be4 Rh1 Rg1 Qb1 Rc7 Qb4 Bb7 Ra8 Bd1 Rb8 e2 Ra8 e1N Rb8 Be7 d8N Nc2 N8c6 Bd8 Ra8 Qh3 Rc8 Be2 Nb8 Rcd7 Qb3 Re7 Qb4 Qa5 Ba6 Qb5 Qc5 Na1 Qh5 Rg2 Rd1 Rg1 Ng4 Qh2 Qg5 Qh6 Qh5 Qg7 Nh6 Qh8 Qh4+
3bnQ2/2bnnNPn/2P1q1b1/1N2rB1R/k4nKN/2b2B2/qB6/Bq1R4 b - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 b4 h5 e4 d5 Ke2 Kd7 c4 f5 c5 d3+ Ke3 f4+ Kd4 f3 Ke3 g2 Kf4 f2 g6 d4 e5 d2 g7 g3 b6 Kc6 e6 h4 b7 h3 e7 a4 e8B+ Qd7 Qc2 d1Q Ba3 d3 Kg5 Kb5 c6 h2 Qb2 Ne7 Qc3 Rh5+ Kf4 Re5 Bb2 a3 Ra2 Qe6 Ra1 a2 Qd2 Ka4 b5 Qc2 b6 Nd7 Qc3 d2 b8B d1N b7 Ne3 Qd4+ Nc4 Qd2 Nd6 Bf7 Ne8 Ne2 g1N Na3 g2 Rb1 a1B Nd4 Nf3 Rd1 g1B Bh5 Ng5 Bh3 f1N Nab5 Ng3 Nf5 Bb6 Kg4 Bd8 Qf2 Nh7 Ba7 Ne2 b8N Qb1 Bad4 Nf4 Qf3 Qea2 Nh4 Qe4 Bf1 Qed5 Bd3 Qe6+ Bf5 Bc7 Ba3 Bc3 Bb2 Ng8 Qf2 Be7 Qf1 Bed8 Qf3 Nc5 Nd7 Ne7 Qf1 Rd5 Ne5 Nd7 Nf7 Re5 Kg3 Ba6 Bf3 Bc8 Kg4 Ba6 Rg1 h1Q Rg3 Qg1 Qf2 Qf1 Rh3 Qd3 Ba1 Qdb1 Rh2 B3a5 Bdb2 Bc3 Na3 Bd3 Qc5 Ng8 Qf8 Ne7 Nb5 Qec4 Be6 Bg6 Bf5 Qd5 Ng2 Qd6 Rh5 Qde6 Nh4
1nrk2N1/K3b1Qn/4b1PB/1r2B2N/2rrb2B/2r1RR1b/1P1N4/b3N1n1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 d4 cxd4 f5 g6 g4 Nc6 h4 Bh6 g5 Na5 f6 Bf8 Bh3 Nc6 Bf5 gxf5 h5 Nb8 Ne2 Qb6 Ng1 Qe6 Kf2 Qf7 Ke1 Qg6 hxg6 Bg7 Qg4 Bh6 Qd1 Bf8 Kf2 e5 c4 h5 b6 a5 f7+ Kd8 b7 d5 c5 a4 c6 f4 g7 e3+ Ke2 h4 Kd3 a3 g6 e4+ Kc2 a2 Kb3 e2 Rh2 e1N Rd2 f3 Rh2 e3 Nh3 e2 Qd2 d3 Qe3 f2 Qf3 f1B Na3 d4 Kc4 d2 Kb5 d1R Kb6 d3 Qf5 d2 Qf6+ Be7 f8B Ra4 Nf4 h3 Rf2 h2 Rf3 h1B Nc2 Be6 Nh5 Rc4 Ka7 Bfh3 Qf7 Nf6 g8N Nh7 Bh6 B1g2 Qg7 Rc3 Re3 Nf3 Ne1 Ng1 Rb1 a1B c7+ Ke8 c8N Kd8 Nd6 Be4 Bg5 Rc4 Bh4 Rc3 Nf3 e1R Nc4 Rf1 Ne1 Rf5 Nd3 Rdf1 Ne1 d1R Nd2 R1f4 Rf3 Rb5 Re3 Na6 b8B Rg4 Be5 Nb8 Nc4 Rd2 Rf3 Rd4 Bh6 Rg2 Rd1 Rgc2 Rdd3 Rc1 Nd2 Rc4 Bhf4 R1c3 Rde3 Kd7 Nh6 Rhc8 Ng8 Kd8 Bh6
r2NK2B/PR3r1q/1Q1bB1rq/R2q4/1Pq2Bb1/1N1B4/1q1rR1r1/4q1k1 b - - 0 1 legal: proof: g4 c5 f4 h5 d4 hxg4 a3 cxd4 f5 b5 f6 b4 Bg5 b3 Be3 exf6 Bg5 f5 Bc1 f4 Nc3 a5 Ra2 a4 Nb1 Nc6 Ra1 Nf6 Kd2 Nd5 Ke1 Nb6 Kf2 Nc4 Ke1 Nb4 axb4 a3 Be3 a2 Bc1 Na3 bxa3 Ra7 Be3 Ra6 Bc1 Ra8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 e4 g5 c4 d5 c5 f5 c6 b2 h3 Kg3 h4 Kf2 h5 f3 h6 d3 a4 d2 c7 d4 h7 g3 a5 g4 a6 g2 a7 g3 Ba6 f4 Rh4 d3 Rh6 Rg8 h8B Qh4 Rh5 Bd6+ Kd5 Qh2 Na3 b1Q Qb3 d1Q Kc6 d2 e5 Qh7 e6 Rg6 e7 Bg4 Ne2 g1Q e8R g2 c8B Qge1 Nd4 g1R Ne6 Rg2 Nc2 Kg1 Qe3+ f2 Ncd4 f3 Rb5 Q2h6 Rb7 Qb3 Ree7 d1R Kd7 Qd5 Nb3 Rd3 Qc5 Rd4 Qc7 f1R Qb6 f2 Ke8 Rd1 Be3 Rd4 Nd8 Rd2 Rc1 a1Q Rc5 Qb2 Ra5 Qec1 Be2 Qcc4 Bg5 Rc1 Re3 f1Q Be6 Qf2 Re5 Rf1 Bd3 Qe3 Re4 Rf7 Bf4 Qf2 Re3 Qe1 Re2+
R3nk2/BKb1bPNR/rb1NBB2/q7/2P2pQR/6r1/3q4/q2R1rnn b - - 0 1 legal: proof: e4 c5 h4 b5 a4 g5 axb5 gxh4 d4 cxd4 Be3 f5 Qc1 f4 Bd2 Bb7 Qd1 Bd5 Bc1 Be6 Kd2 Bf5 exf5 Qa5+ Ke2 Qe1+ Kd3 Qxf2 Kc4 h5 Kc5 d5 b4 a5 Kb6 e5 c4 a4 g4 d3+ Kc7 h3 b6 e4 f6 h2 b7 a3 b5 d2 b6 a2 g5 d4 g6 e3 g7 d3 Nc3 h4 Ba3 h3 Bd6 e2 Be5 e1B Qb1 d1R Ne4 d2 Bd4 Nc6 b8B Be7 b7 Ne5 Ne2 Nf3 Ng1 Ra6 Ne2 Ng1 Be5 Qa7 Nd4 Bf2 Nf5 Bb6+ Kc6 Re1 Qd1 Rh5 Bd4 Rg5 Qg4 d1Q Bg2 Qa8 Ba7 Qd2 Rd1 a1B Bc3 Qad8 b8R Rf1 Kb7 Bc7 Be5 Bd4 Ra8 Bdb6 Bf3 Kf7 Bd4 Qa5 Bb2 Qdd2 Ned6+ Kg6 f7 Nf6 Bc3 Ne8 g8R+ Kh7 Bd5 Rg7 Qf3 Rg3 Rg7+ Kh8 Rg4+ Kh7 Rh4+ Kg6 Nd4 Kg7 Qg4+ Kf8 N4f5 Nf3 Rg1 h1Q Be6 h2 Rg2 Qg1 Bf6 h1N Ng7 Qgd4 Rf2 Ng1 Rfh2 Qde5 Rh7 Qea1 R2h4
R2nq1N1/1k3qB1/N3P1Br/1nr1Q1r1/1b1R1N2/3Kn2p/1PR1n2b/6Nn b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 Kd2 a5 c4 f5 e4 d5 b6 Kd7 g5 Kc6 g6 h5 g7 f4 c5 d3 e5 a4 e6 d4 b7 a3 Qe2 h4 Qe3 h3 Be2 f3 Ra2 f2 Bh5 f1Q Nc3 Rh6 Qg5 Ra5 Qe3 Qe8 Ne4 Na6 b8N+ Kb7 Bg4 Nc7 Qe1 Nb5 Nc6 Ne7 g8R Qff7 Nb4 Nc6 Ra1 a2 Rh2 Nd8 Nf6 Be7 Rb1 a1R Nh5 R1a4 Na6 Rc4 Nf4 Rc3 Nge2 g1B Bh5 g2 Bg6 Bd6 Ra1 Bf8 Ra4 Rc4 Rh1 Bh2 Ng1 Rc3 Qe5 Bd6 Ke1 d2+ Ke2 d1N Be3 Nf2 c6+ Kc8 c7 d3+ Kd2 Kb7 c8N Bb4 Bd4 Rc5+ Ke3 d2 Ne7 d1N+ Ke2 Bg3 Rh2 Nh1 Kd3 Ne3 Rh8 Bbe1 Ng8 Bb4 Nf3 g1N Rc2 Ne2 Ng1 Bh2 Bc3 Ba3 Rd4 Bb4 Be1 Qfe7 Bh4 Q7f7 Bf6 Ra1 Bg7 Rf1 Nd5 Rf5 Nf4 Rg5 Qe4+ Nc6 Ne7 Qd7 Ra8 Qde8 Qe5 Nd8 Ng8
1R3b1b/R1N4K/N4rn1/1q3rBB/b3P3/2P1Bpn1/Qr2kR2/q1n3Rb b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 c5 a3 cxd4 a4 b5 axb5 axb4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 h4 g5 b6 d5+ Ke5 f5 e3+ d3 h6 f3 h7 b3 h5 b2 c3 f2 b7 d4 h6 f4 Qh5 g4 Qh4 g3 Ra5 g2 Bd2 Nc6+ Ke4 Nb4 b8B Qd7 Bc7 Ne7 Ne2 g1B Nc1 Ng6 Be2 f1N Bb6 Na2 Nb3 Qb5 Qf2 Nc1 Nc5 Ra6 Bh5 Bb7+ Kf5 Ng3+ Kg5 Bh2 Rf1 Bh1 e4 f3 Ra2 Rg8 h8R Ra5 Be3 d2 h7 d1Q Bd8 d3 Ra1 Rg7 Kh6 d2 Na6 Kd3 Na3 b1R Rg8 Rb2 h8R Rf7+ Rg7 Rf6 Kh7 Qe1 Ra7 d1B Be7 Ba4 Qg2 Rb3 Qa2 Rb2 Bd8 Ke2 Be7 Qb6 Nb5 Qc6 Nbc7 Raf5 Rg1 Qb5 Rg8 Rc6 B7g5 Rcf6 Rf1 Bg1 Bd2 Bgc5 Bde3 Bg7 Rg1 Bh8 Rb8 Bf8 Rf1 Nb3 Rd1 Nc1 Rg1 Qd2 Rdf1 Qd6 Qe6 Qa3 Qf7 Qa1 Qg8 Qe8 Qa2 Qb5 Rf2+
3R4/1r4BP/2nK1n2/k6N/b1bQB1n1/BNR1Pp2/q2B3n/br2Rr1q b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 h4 f5 d4 c5 b6 g5 b7 Kc7 e3 Kb6 d6 c4 h5 f3 Kg3 c3 h6 f2 h7 b3 d7 f4+ Kg2 c2 d5 b2 d6 g3 Kf3 g4+ Ke4 g2 Kd5 g3 Rh2 Nf6+ Ke5 Ra7 Qd2 Nc6+ Ke6 Bg7 b8B Rf8 Rh6 Rb7 Bb5 f1B Qd5 Bc4 Bd2 c1Q Ne2 g1N Rh5 g2 Ng3 Qd1 Re5 Qe1 Nh5 Nh3 Ba4 g1N Bc2 Nf3 Be4 Nh2 Rg5 f3 Ra3 Qf1 Rc3 Nf2 Rg1 Rg8 Ba7+ Ka6 Bc5 Qa5 Ba3 Nf2g4 Rh1 Qg2 Rf1 Qh1 Re1 Bb5 Qd4 Ba4 Bc1 Kb5 Nd2 b1R Nb3 Bh8 Bd2 Rg5 Bac1 Rc5 Ba3 Qa7 Rd3 Rcc1 Rc3 Bg7 Re2 Rf1 Re1 Ng8 Kd5 Ka6 d8R N8f6+ Kc4 Qa8 Kc5 Be6 d7 Bc4 Kd6 Kb5 Rh8 Qa6 d8B Qa8 Be7 Qg8 Bf8 Qf7 Na1 Ka5 Nb3+ Ka6 Rd3 Bcb5 Qe5 Nd7 Nd4 Qa2 Nb3 Bc4 Qd5 Ba1 Bg7 Ndf6 Rd8 Kb6 Qd4+ Kb5 Rc3 Ka6 Nc1 Ka5 Nb3+
3RBr1r/N7/2qrn1Q1/B1R1Rn1b/1BKR1bP1/2nPN3/np1r4/1r2k3 b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 a5 c4 g5 cxd5 gxh4 b4 axb4 a3 bxa3 Ke2 Kd7 Kd3 Kd6 f4 Kc5 d6 Kb4 d7 h5 f6 b5 f7 e5 g3 c5 f5 a2 f6 h3 Bg2 c4+ Kc2 h4 d3 e4 Bf1 h2 Bb2 e3 Ne2 h3 Ng1 c3 Ne2 Qb6 d8B Na6 Nd2 Bh6 f8R Nc5 f7 Nf6 Bc7 Bg4 Qb1 Bf4 Bb8 Nd5 Bg2 Ne6 Bf1 Bh5 g4 Qc6 Nd4 e2 Rg1 e1R Nc4 h1R Bg2 h2 Ne3 Rd1 Re1 Rf1 Ba7 h1N Rc8 Ng3 f8R Nf5 Bb6 Ra6 Rfd8 Rf3 Qc1 Rf1 Rb1 a1R Qd2 Rf2 Rc1 Rb1 Ba5+ Kc5 Kb3 b4 Rd6 c2 Rcd8 Nc3 Nb5 Rb6 Qe2 Rd2 Na7 Rf1 Bd5 Kd4 R6d7 Qb7 Qg2 Rd6 Bc6 Rff2 Ba4 Qc6 Qe4+ Kc5 Rb7 Ne7 Bc7 Ne2 Bb8 Qd5+ Nc4 Be5 Rg8 Rd1 Rd8 Rff8 Rg1 Bf4 Qg6 Nf5 Be8 Qc6 Bc7 Kd5 Re1 Kc5 Ka2 b3+ Ka3 Kd5 Bc3 b2 B7a5 Kc5 Bd2 Kd5 Rb4 Kd4 Be3+ Kc3 Bc5 Ng1 Re4 Ne2 Ne3 Kd2 Kb3 Ke1 Rbd4+ Kf2 Re5 Rd2 Re1 c1N+ Kb4 Na2+ Kb3 Nec3 Rc1 Nd1 Bcb4 Ke1 Rcc5 Ndc3 Kc4
n3k1K1/3rB3/R1b1p3/B1n1bnnr/n7/1N1P1PRQ/2RRN1B1/b2qb3 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 Ke2 c5 Ke3 h5 Kf4 e6 Ke5 e3 g4 h3 g5 h2 b6 c4 d6 b3 b7 h4 f3 h3 g6 c3 g7 b2 Ra5 c2 Bc4 e2 Ba6 e1B Bd3 Nd7+ Kd4 Ne7 b8B Nd5 g8R Nc7 Nc3 b1N Na2 Nc3 Ba3 c1B Ne2 Bb7 Rg3 Rh5 Ra6 Bb2 Nac1 Ba1 Nb3 Bc6 Bf5 Nc5 Ke5 Qd7 Kf6 Ra7 d3 Na8 Bc7 Bg7+ Kg6 Bf6 Ba5 Be5 Rhg1 h1N R1g2 h2 Bh3 Qc8 Qc2 Nf2 d7+ Kf8 B3b4 h1N d8R+ Ke7 Qc1 Nfe4 Qh6 Rd7 Kh7 Na4 Kg8 Ng5 Qh8 Qc7 Rc8 Qb7 Rc7 Ke8 Rh2 Qb5 Bg2 Qc4 Qh7 Qc2 Qf5 Qd1 Qh3 Nf2 Ba3 Nfe4 B3b4 Nd6 Ba3 Nce4 B3b4 Nf5 Be7 Bd5 Rc2 Nec5 Bf1 Be4 Rf2 Bc6 Bg2 Bb5 Nec1 Bc6 Rfd2 Rh6 Ne2 Rh4 Bb4 Rh5 Ba5
rb2N2q/b1N1BR2/3r4/2pn4/1NQPRn2/3bRPRk/1K5n/nB3rr1 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra3 fxe4 Ra6 Nf6 Ra1 Ng8 d4 Kf7 Kd2 Kg6 Kc2 Kf5 g3 h5 d6 e5 b6 b3+ Kc3 e3 b7 e2 d7 Kg4 Qc2 e1N Rh2 e4 Qe2+ Nf3 Bb2 e3 Ra3 h3 Qc2 e2 Qd3 e1B+ Nd2 h4 Qc2 Rh6 Rh1 h2 Ne2 h3 Nf4 Nf6 Nd5 Na6 b8N Nc5 Nc6 Nh5 Ncb4 Nf4 Bd3 Rd6 Rf1 h1R Bh7 c6 Nc7 h2 Bg6 Qh4 d8R Qh8 Re8 Rg1 Re4 Kh3 g4 h1R g5 Ba6 Qd3 Bb5 Qc4 Nh2 Bh7 Be7 g6 Ba6 Bc1 b2 g7 b1N+ Kb2+ Nb3 g8R Nc3 Rg2 Ncd5 Rg3+ Kh4 Bg6 Na1 Rae3 c5 f3 Bf2 Rfe1 Bd8 Re7 Rf1 Bb1 Rhg1 Ne4 Bb5 Rf7 Ba6 Rg6 Bg3 Nf6 Kh3 Nfe8 Bb5 Re4 Ba6 R1e3 Bb5 Nca6 Bb6 Nac7 Ba7 Rg4 Ba4 Rg6 Bc2 Bd2 Bd3 Be1 Bh4 Bf2 Bf6 Bh4 Be5 Be7 Rf6 Nca6 Beb8 Nac7 Rd6 Rg3+
Nb2q2q/1k2n1R1/1R5B/q2N2n1/r2R2p1/3b1PQr/q2BP1B1/1bb1K1R1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 d4 hxg4 d6 e5 d5 f5 Qd4 exd4 d7+ Ke7 Be3 g3 Bc1 Qe8 d8Q+ Kf7 Qg5 Qd8 Qf4 Ke8 Qg4 fxg4 h4 Kd7 b4 c5 f3 Kc7 b6+ Kb7 d6 g5 d7 a5 h5 c4 h6 c3 b5 c2 h7 d3 Bh3 d2+ Kf1 d1B Bf4 c1B Ke1 a4 Ra2 a3 Rd2 a2 Be5 a1Q Ra2 g2 Bg7 g3 Bh6 Ra4 Nd2 Bc2 Nc4 Qe8 d8R Nc6 Rd4 B8f5 Ra3 Nce7 Rc3 Kb8 b7 Bcd3 Nb6 Nf6 Na8 Qa2 Rc7 Ne4 Rcd7 Ka7 b6+ Ka6 b8B Bb1 R7d6 Kb7 Rf6 Bg7 Bf4 Bd3 Rfd6 Be5 Bd2 Bf4 Rg6 Bb8 Rg7 Bg6 Bf5 Bb1 Nh3 Bd3 Rf1 g1Q Nf4 g2 Nd5 Qh2 Bh3 g1Q Bg2 Qe3 Rg1 g4 Nf4 Ng5 Nd5 Ka6 b7 Qee5 Ne3 Qa5 Nd5 Bd6 b8Q Bb1 Nf4 Bgd3 Nd5 Qh1 Qc7 Bh2 Qg3 Kb7 Qh3 Bb8 Qg3 Rf8 h8R Rf7 Rg6 Rh7 Rhg8 Qh5 R8g7 Qh8 Rc6 Q5e8 Re6 Ne4 Bg5 Rh3 Bh6 Ng5 Rb6+
K4nR1/6r1/1pN1Rr2/1NPB3b/2P1rr1q/1rqk2RB/1n3qB1/3rRQ2 b - - 0 1 illegal: No possible last move
b2N2N1/1b1PKB2/BQ2BPbp/Rrn3n1/1R1r4/nnB5/2R2n1r/k6n b - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 h4 f5 c4 fxe4 f4 dxc4 g5 Qd6 f5 Qf6 gxf6 g5 Bb2 g4 Ba3 Bh6 Bc1 Bg5 hxg5 Ra5 Kf2 Ra7 Ke1 Ra8 Kf2 Kf7 Kg3 c5 Kf4 b5 Ke5 e3 d4 e2 a4 e1N a5 g3 d5 c3 d6 c4 d7 g2 a6 c2 a7 c3 Qd2 b3 Qd6 b4 Bf4 c1R Nf3 g1N Ra6 b2 Qc5 b3 Rh2 c2 Qd6 Ne2 Nh4 Ng3 Qc6 Nh1 Rf2 Bb7 Kd5 e5 Kd6 e4 Qb6 e3 Qc7 e2 Bh3 Nf3 Rg2 e1N Qc8 Nh6 Nc3 b1B Be5 b2 Nd5 Rd1 Qc6 c1N Ng6 Nb3 Ne7 Ng4 Ng8 Nc2 Qb6 Na3 Bc3 Be4 Ra5 b1B Rc2 Ngf2 Bf1 Rd4 Ba6 Ra4 Nf4 Rd4+ Kc7 Bec6 Ne6 Bd5 Kd6 h6 Bd3 Na6 Bb5 Re8 a8B Nac5 Ba6 Rb8 Qa7 Rh7 Qb6 Rg7 Nd8+ Kf8 g6 Ng5 Ra2 Re7 f7 Kg7 f8R Re2 Re8 Rb2 Re4 Re2 Ne7 Kf6 g7 Rb2 g8B Bc2 Rh4 Bdc6+ Kc7 Ke5 f6 Bg6 Be6 Bg2 Ng8 Bgd5 Rh5 Ke4 Rb5 Kd3 Kd6 Kc2 Ke7 Kb1 Rb4 Rc2 Rb2+ Ka1 Bf7 Bc8 Bc6 Bb7 Bcb5 Ba8 Bc4 Bdb7 Bce6 Nfd3 Rh3 Rh2 Rf3 Ndf2 Rf5 Ncd3 Ra5 Ndc5 Qa7 Bf3 Qc7 Rb5 Qb6 Bfb7 Rc2+
1q2R3/2kr1N1n/qp2B3/nR1qb2K/PR1qr3/2BQ2r1/nB2P3/NR1r4 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 d4 Kd7 a4 c5 g5 f5 g6 h5 g7 c4 d6 b6 d5 b3 Na3 f4 Rh2 f3 Nh3 g1R Bb2 g2 Kf2 h4 Qd4 c3 Bc1 b2 Nc4 b1Q Qf6 c2 Qg6 Nc6 Ng5 h3 Kg3 f2 Kg4 Rh7 Nf7 Qb5 Bb2 c1N Na5 Qa6 Qd3 Na2 Rb1 Qb8 Nb3 Na5 Na1 Nf6+ Kg5 Ra7 g8R Bg7 Re8 Rh4 Re5 Kc8 d7+ Kc7 d8R Re4 Rde8 Nh7+ Kh5 Rb7 Rf5 Be5 Rg5 Rh1 Rg4 g1R Rh4 Rg3 d6+ Kd7 Bg2 f1Q Bc3 Kc6 d7 Qf6 d8B Rd1 Bh1 Qf2 Bf6 Qd4 Bf3 Kd7 Bg4+ Kc7 Be6 Ra7 Rf2 h2 Rf5 h1Q Bh8 Kc6 Bf6 Rd7 Bb2 Kc7 Rg5 Bd6 Rb5 Be5 Bg5 Reg4 Bc3 Qf2 Bc1 Qd5 B1b2 Qe3 Rh2 Qf4 Rf2 Qfe4 Rf4 Qec4 Rd4 Re4 Bg4 Qcc5 Rdb4 Qcd4 Be6
3RNR2/1P3BK1/N2qq1p1/3RNP2/3Bn2r/1qn2n2/N1n1nnQk/2r2n2 b - - 0 1 legal: proof: f4 b5 g4 f5 h4 c5 d4 cxd4 a4 bxa4 e4 fxe4 h5 g6 h6 Bg7 hxg7 Na6 f5 Rb8 Nh3 Bb7 Ng1 Bd5 f6 Ra8 Nh3 Be6 Ng1 Bf5 gxf5 Nb8 Ke2 Kf7 b4 h5 c4 a5 c5 e5 b5 d5 b6 a3 c6 e3 Kf3 a2 b7 d3 c7 h4 Kg4 d4 Kg5 a4 c8N e4 Nf3 e2 Nbd2 e1N Rh3 e3 Bb2 e2 Ba3 Nc6 Rb1 a1Q Rc1 Qd6 Ne7 Qa2 Bc5 a3 Nc8 Qb3 Ba7 a2 Bg2 a1N Rh2 h3 Nc4 d2 Bb8 d3 Na5 Nac2 Na7 N6d4 N5c6 Rh4 Nb5 Ra1 Ba7 Rb1 Rh1 h2 Nc3 Ra1 Rg1 h1N Na2 Ng3 Ncb4 Nf1 Na6 Rb1 Bh1 Ra1 Rg4 Rb1 Re4 Ra1 Re5 Rb1 Nh2 Ra1 Ng4 Nef3+ Kf4 e1Q Qe2 d1N Qg2 Nc3 Rd1 d2 Bc5 Qd7 Rd5 Qee6 Bb6 Rc1 Ba7 N3h2 Kg5 Nde2 Bd4 Qdd6 Ne5+ Ke8 f7+ Ke7 f8R Nf6 Re1 d1N Rd8 Nf2 Rf8 Rf4 Kh6 Nf3 Rd1 N6e4 Rd3 Qf7 Kh7 Kf6 Kh8 Rg4 g8N+ Kg5 Nf6 Kf4 Ne8 Qfe6 Kg7 Rh4 Bc5 Qc6 Rd8 Qcb6 R3d5 Qbd6 Bd4 Nc5 Qh3 Nfe1 Bg2 Qc8 Qh1 Kg3 Be4 Nf3 Qg2+ Kf4 Bd3 N5e4 Ra5 Qcc4 Rb5 Qc8 Bc4 Qcd7+ Bf7 Q7e6 Qh1 Kg3 Qg1+ Kh3 Qg5 Kh2 Rd5 Nf6 Qg4 N6e4 Qg2+
n2QqqRK/BRr3R1/2b5/Bqq1qqr1/N7/3P1P1B/pq2q1RN/5k2 b - - 0 1 legal: proof: e4 d5 c4 dxc4 a4 b5 e5 bxa4 g3 g6 e6 fxe6 Qe2 e5 Qd1 e4 Be2 g5 Bd3 Nd7 Bf1 Bh6 h3 Ndf6 h4 g4 Nc3 Bf4 Nb1 Bg5 hxg5 Nd5 Rh3 Be6 Rh1 Nf4 gxf4 Bc8 Ke2 Kd7 Ke3 Kc6 b4 Kb5 g6 e5 g7 a5 f3 h5 f5 c5 f6 g3 f7 a3 f8B h4 Qc2 a2 Qc3 g2 Qa3 h3 Be7 a4 Bf6 h2 Nh3 g1Q+ Nf2 Rh7 Qd3 a3 Be2 Qg4 Bf1 Qf5 Bg5 Ne7 g8R Ra5 Ng4 Bd7 Nf6 Nc8 Bf4 Qf8 Be2 Bc6 Nd7 Nb6 Rh8 Na8 Rd1 h1Q Bh6 Qhh5 Nf6 Rc7 Rg8 Qhe8 Kf2 e3+ Kg3 e4 Bf1 e2 Kh4 e3 Qd8 c3 Bh3 Kc4 b5 c2 Rdg1 e1Q+ R1g3 e2 b6 Qed7 b7 Kd3 b8R c4 Rb7 c3 Be3 Qf1 Ba7 e1Q Rg7 Ke2 Ng4 Qde8 Rg8 Qd1 Rg2+ Ke1 Rg7 Q1b5 d3 Qde2 Bd2+ Kf1 Rg8 c1Q Rg7 c2 Nc3 Qf4 Na4 Q4f5 Rb1 a1Q Be1 Ra6 Ba5 a2 Rb4 Qae5 Rg8 Rc8 Rbg7 Rc7 Rb3 Qb1 Rb2 Qbc5 Rb7 c1Q Qg5 Qb8 Kh5 Qbe8+ Kh6 Qcb2 Qd8 Qbb5 B5b6 Q1b2 Ba5 Q5f7 Kh7 Qff5+ Kh8 Rb6 Bb4 Ra6 Nc3 Ra4 Ba5 Rd4 Na4 Rd6 Qc8 Rg6 Qd8 Rg5 Nh2+
1q1rB2n/b1NPbB2/4r1qk/KRR1bp2/1p1n2BQ/NPRq1n2/8/R7 b - - 0 1 legal: proof: f4 d5 e4 e5 h4 b5 a4 g5 b3 gxh4 Bb2 Ba6 Bd4 b4 c4 exf4 cxd5 Bb5 Be3 fxe3 axb5 Qd7 Be2 Qc8 Bf1 Qd8 d4 h5 g4 a5 d6 c5 g5 f5 b6 Kf7 e5 Kg7 d7 h3 g6 h4 d5 c4 d6 h2 b7 c3 e6 h3 e7 c2 e8B c1B Qf3 a4 Be2 a3 Bf1 a2 Ne2 Be7 Qd5 Kh6 g7 Nc6 b8R Ra6 Nec3 e2 Qe4 Be3 Nb5 Ba7 Kd2 e1N Nc7 Nd4 Na3 Nef3+ Kd3 Qc8 Rb6 Qb8 Rb5 Rb6 Rc1 a1B Kc4 Bc3 Rg1 h1Q d8R h2 d7 Qg2 Rc8 h1Q Be2 Qg6 Rge1 Ba1 Rc3 Re6 Rb1 Bb2 Ra1 Qb1 Bd1 Bd8 Qe1 Ne7 g8B Qc2 Bgf7 Qe4 Rb6 Qd3+ Kc5 Bc1 Qg3 Bf4 Qf2 Be5 Qh4+ Qh5 Be2 Ng6 Bd1 Rf8 Be2 Nh8 Bd1 Qe4 Kc4 Be7 Rb5 Ng1 Bg4 Ngf3 Na8 Qb1 Rcc5 Qc2 Nc7 Qe4 Bg6 Qe3 Bef7 Rd8 Be8 Qe4 Bgf7 Qd3+ Kd5 Qc8 Rb7 Qc2 Kc4 Qb8 Rb6 Ne2 Kb5 Qd3+ Ka5 Ned4 Qg3 Qg5 Rbb5 Qg6 Qh4+
4B1q1/1nrpp1Nk/nP3n2/1R3bNb/Q3qr1N/q6R/P5B1/b1B3BK b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 c5 d4 h5 b4 h4 b5 b6 Nd2 h3 Rb1 Rh4 Rb4 axb4 gxh3 Rh5 h4 Rh8 h5 Rh6 Qc2 cxd4 c5 Rh7 c6 Rh8 Qc5 bxc5 h4 Kf7 f4 g5 Kf2 Kg7 Kg2 g4 b6 b3 h6+ Kh7 h5 b2 c7 b1B f6 g3 f7 c4 f5 c3 f6 c2 Bc4 d3 Nh3 Ba6 c8B Qe8 Nf3 d2 Bb7 d1N Nh4 Bg7 f8Q Nb2 f7 Na4 Rg1 Ra7 Kh1 Be5 Bg2 Nf6 Rf1 Qd8 Rf5 Ba1 Rb5 Nc5 Qe8 Rf8 Ng5+ Kh8 h7 Rc7 Bd3 Nb7 Bg6 Kg7 h8B+ Kh6 Rc5 Be2 Rb5 Qc8 Qd8 Na6 Qe8 Qa8 Qb8 Ng8 Bd4 Nf6 Qa7 Kg7 h6+ Kh8 h7 Bh5 Bcb2 c1Q+ Bg1 Bf5 Ba3 Kg7 h8R Qc3 Bb2 Qa3 Bc1 Na5 Re5 Qe4 Rb5 Nb7 Rh6 Rd8 f8N Kg8 Nfe6 Rf8 Ng7 Rf7 Bf3 g2+ Kh2 Nb8 Qa4 Na6 Bge3 Rf8 Be8 Rf7 Kg3 g1Q+ Bg2 Qd1 Kh2 Qdd5 Bg1 Rf8 Rg6 Kh8 Kh1 Qg8 Nf7+ Kh7 Rg3 Qb1 Rh3 Qe4 Ng5+ Kh8 Bge3 Nd5 Bed2 Bfg4 Be3 Rf4 Rh2 Bf5 Rh3 Nf6 N5e6 Kh7 Bc5 Kh6 Bg1 Kh7 Ng5+
N3r3/q5k1/3p1BP1/1N1r1R2/4np1b/1nR4r/1rPQ2Kb/1Brn1BNN b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 fxg3 Bg2 g5 Bf1 g4 Ra4 g2 Ra2 Bd6 Ra1 Bf8 Kf2 g3+ Ke1 Bb7 Ra6 Bf3 Ra1 Bg4 hxg4 Be7 Nc3 Ba3 Nb1 Bf8 e4 a5 b4 h5 e5 f5 g5 Kf7 g6+ Kg7 e6 d3 b6 a4 e7 d6 e8B f4 b5 h4 b7 d2+ Ke2 h3 Kf3 h2 b6 a3 Qe1 d1N Nd2 a2 Ne4 Qe7 Qd2 Rh5 Bf7 Nc6 b8N Rd5 b7 Na5 Na6 Re8 b8N Nf6 Bb2 Nb3 Nf2 Qa7 Nc7 Be7 Nd7 Bd8 Rb1 a1R Nb5 Ra2 Nb6 Be7 Ba1 Rb2 Na8 Ne4 Bg8 Bh4 Be6 Ne3 Re1 Nd1 Re3 Rh5 Bec4 Rf5 Rc3 Rd5 Ne2 g1B Kg2 Na5 Ba2 Nb3 Kf3 g2 Bb1 Re7 Nh3 Re8 Ng3 Bd4 Rg1 Bf2 Nh1 Be1 Be2 Beg3 Re1 g1R Bf1 Nef2 Re5 Ne4 Be2 Re1 Kg2 Rf1 Rf5 Re1 N1f2 h1R Ng1 Rh3 Nh1 Bh2 Bc4 Ndf2 Be2 Rc1 Bf1 Ra2 Bb2 Nd1 Ba3 Rb2 Bc5 Kh8 Bd4+ Kg8 Bf6 Kf8 Be7+ Kg7 Bf6+
rNb1r1N1/4rNk1/nrB5/p5nB/KPP5/1R4Rp/Q1n1B3/1qbbB3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 e5 f4 exf4 e3 b5 axb5 g5 hxg5 dxe3 c4 f5 b4 Kf7 g4 h5 g6+ Kf6 g7 a5 b6 d5 b7 e2 Kd2 e1R Kc3 h4 Kb3 f3 Ra3 d4 Rh3 f4 Qc2 f2 Ka4 f3 Nc3 d3 Qa2 d2 Be2 f1N Rg3 d1B+ Rb3 h3 Bd2 f2 Nf3 Nh6 g8B Nf7 g5+ Kg7 g6 Na6 b8N Ng5 Bd5 Ne3 Bc6 f1R Ne4 Nc2 Ne5 Rf6 Nf7 Qd3 Bc3 Rh7 Bd2 Re6 Nf6 Bc5 Ng8 Be3 Bc1 Re8 Bd2 Rf1 Be1 Rf6 Bcf3 Rb6 Bh5 Bd2 Ngh6 Kf6 g7 Bc1 g8B Rg7 Bh7 Qf5 B7g6 Rh7 Ng8+ Kg7 Bhf3 Na1 Bg4 Kf8 Nh8 Rhe7 Nf7 Kg7 B4h5 Qb1 Be4 Nc2 Bc6
k1N3bb/6B1/1N3K2/1pb1BQ2/1bP2R1r/2nnp1b1/1r1B1RqP/1R1q2B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 Ba6 h5 Bf1 hxg4 c3 d4 Bg2 d3 Be4 Bd7 Bd5 Bc8 Na3 c5 Nb5 c4 Nc7+ Kd7 Bxc4 Nf6 Bb3 Ng8 Bc2 dxc2 Ke2 Kc6 Ke3 g5 Ke4 e5 f4 b5 d4 Kb7 a4 b3 d5 b2 a5 b1Q a6+ Ka7 f6 g3 c4 g2 f7 g4 f5 g3 d6 Qh4+ Qg4 Qh7 d7 Ne7 d8B Qg7 f6 Rh7 Ne8 Rh4 Bd2 Nd5 Ra2 Nd7 Kf5 e4 Nd6 c1B Bc7 Nc3 Nh3 g1B Nf4 g2 Nd5 Bc5 Nb6 g1B Qf4 Be7 f8B Qg2 f7 Bgf2 Bg7 Bg3 f8B Bb2 Qe5 Qc2 Rb1 Qd1 Kg6 Bb4 Qf5 Nc5 Be5 Be6 Bfg7 Bf8 Kf6 Nd3 Bd8 Kb8 Ndc8+ Bfd6 Be7 Bg8 a7+ Kb7 Bef8 Bdc5 Bfd6 Ba1 Bd4 Bb2 Bg1 e3 Be5 Ba1 Ne7 Rd8 a8R Rdd4 Rab2 Rdf4 Rd8 Rf2 Rd4 Re2 Rf4 Rf2 Na4 Ka8 Nc8 Re2 Be1 Rc2 Ra2 Rb2 Bd2 Rb3 Rc2 Rb2 Nab6+ Kb7 Bd6 Nc1 Kg6 Rb3 Bh6 Nd5 Be1 Nd3 Rcf2 Bh8 Bd2 Rb2 Bg7 Nc3 Bc7 Be7 Bce5 Bec5 Nd6+ Kb8 Kf6 Ka7 Ndc8+ Kb7 Nd7 Ka8 Ndb6+
3n4/k2r2PP/3r2R1/N3q1BR/1K1R1N2/1bR4B/rb3rpp/QrB2qn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Ke7 h5 Ke8 b4 h6 g4 Nd7 Rh4 Nb8 Qb3 Ba6 Qg3 Bb7 Rh1 Ba6 Qh4 Bc8 Ra3 Nc6 Rg3 gxh4 g5 Nb8 g6 Bd7 Rg4 Bc8 Rg5 hxg5 d4 Kd7 Kd2 c5 Kc3 Kc7 e4 Kb7 e5 f5 h6 a5 b6 g4 e6 a4 h7 c4 b5 a3 g7 f3 d6 g3 e7 a2 e8R a1R d5 f2 d7 h3 d6 h2 Re4 f4 Re8 f3 Re4 g2 Rg4 R1a7 Bd3 f1R Ne2 f2 Kb4 c3 Rd4 c2 Bf5 Qe8 d8R Nh6 Bh3 Nf7 Nd2 Qe5 Nb3 Be6 Nf4 Nd7 Re8 Bd5 Re6 Nd8 Rg6 Rd1 Re1 f1Q Na5+ Kb8 b7 Bb3 Re3 Ra6 Be6 Ka7 b8R Be7 Rb6 Bf6 Bh3 Rf8 Rc3 Rd2 Rbc6 Rf2 R6c5 Rf7 Be3 c1R b6+ Kb8 b7 Rb1 Bc1 Ka7 Nc4 Raa2 Na5 Rc8 Rb5 Rc6 Rbd5 Qe4 Rh5 Ne5 d7 Nf3 Re5 Ng1 Rh5 Rd6 b8Q+ Ka6 Qb5+ Ka7 Qa4 Qe5 Qa3 Ne6 d8B Rfd7 Be7 Nd8 Qb2 Qe6 Qa1 Qee1 Rd2 Bd4 Bg5 Qe5 Rg3 Bb2 Rd4 Ne6 Rf3 Nd8 Rc3
1N1B1bN1/NKB3kR/8/qp1rR2Q/NPn5/qR6/n1rPbpr1/2rq4 b - - 0 1 legal: proof: f4 b5 g4 e5 c4 exf4 a4 h5 gxh5 d5 Bh3 Bxh3 a5 Bc8 a6 Bxa6 cxd5 Bc8 Kf2 g5 Kf3 c5 Ke4 a5 b4 f3 h4 g4 h6 f6 d6 Kf7 Kd5 f5 e4 f4 h5 a4 h7 a3 d7 a2 e5 f2 e6+ Kf6 e7 f1Q e8R g3 h6 g2 Qh5 c4 Bb2+ c3 Ne2 g1R Re5 c2 Nbc3 c1R Na4 f3 Rb1 a1Q Nd4 f2 Nc6 Qa3 Na7 Qa5 d8N Qd1 Ndc6 Nd7 Nb8 Rg2 Bd4 Rc2 Rb3 Ne7+ Kd6 Rhg8 h8N R8g5 h7 Nb6 Ng6 Ned5+ Ne7 Nc3 Kc6 Bg4 Ng8+ Kg7 Kb7 Nc4 Bb6 Na2 Bd8 Rf5 Nac6 Ra6 Na7 Rd6 Bc7 Rd5 Rhh3 Rf6 Rh2 Rh6 Rhh3 Be2 h8B+ Kh7 Bf6 Rc1 Be7 Kg7 Bed8 Rhg6 Nb2 R6g3 Na4 Rgc3 Qf5 R1c2 Rh8 Rc1 Qh5 R3c2 Rh7+
1BRRK3/bqrN2Qq/2R4k/p2Pn2N/2b3rP/2BR2bp/n2Nq3/2q5 b - - 0 1 illegal: No possible last move
4N1b1/R1bb2nB/2Q2pp1/1KPrb3/RN6/P4B1q/R1B5/qrknR1q1 b - - 0 1 legal: proof: c4 c5 g4 e5 d4 cxd4 f4 a5 fxe5 h5 gxh5 a4 b4 axb3 Na3 b2 Rb1 bxc1B Rb3 Bb2 Rc3 Ba1 Kd2 Ke7 Kd3 Ke6 h4 Kf5 e4+ Kf4 h6 d5 c5 b5 h5 b4 h7 b3 e6 f6 e7 g6 e8B b2 e5 b1B+ Nc2 Na6 a3 Ba2 h6 Rb8 e6 Qd7 e7 Rb1 Nb4 Qh3+ Nf3 Nc7 Bg2 Ne6 Rc4 Ng7 Re1 Bd7 Bf7 Bb3 e8B Bd6 Rc2 Bc7 Ra2 Ne7 Bg8 Nef5 Bh1 Ne3 Ne5 Bc3 Nc4 Ba1 Qc2 Nd1+ Bf3 Bb2 Nd6 Bc4+ Kd2 d3 Qa4 Be5 Qc6 d4 Bef7 Bd5 Ne8 Bb3 B7d5 Bc4 Bde4 Bd5 Bf7 Rg8 h8R Rf8 Nd6 Rd8 Bg8 Bf7 Bh7 Bg8 Nb5 Bg4 Bf5 Rd5 B5e4 B4e6 Nd6 Bd7 Ne8 Rb3 Kc1 d2+ Kc2 Rb2+ Kd3 Rb1 Kc4 d3 Be2 Ke3 Kb5 Nf2 B4f3 d1Q Be4 d2 Bc2 Bf7 Rf8 Bg8 Rf7 Qc1 Re7 d1Q Bf3+ Kd2 Rf7 Qb2 Re7 Kc1 Rf7 Bb8 Re7 Qa1 Rf7 Bf5 Ra7 Bbc7 Ra4 Bg4 Re3 Qg1 Re2 Nd1 Re1 Bf7 Bg8 Ba5 h7 Nh5 h8R Bd8 Bh7 Bdc7 Ng7 Bd7 Rha8 Bg8 Ne8 Ng7 R8a7
1q3b1N/1N2rBb1/R1pn1B2/QPr3PR/2n2B2/2q1N1bb/1N2K2p/2r4k b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 a4 e5 axb5 exf4 h4 gxh4 e3 fxe3 b4 Ke7 d4 Kf6 g4 Kg5 b6 Kf4 g5 Kg3 d6 a5 b5 f5 d5 h5 d7 f4 b7 e2 d6 f3 Ra4 h3 Qb3 h4 Kd2 e1B+ Kd3 h2 Rb4 f2 Nc3 a4 Bg2 f1R Qc4 a3 Be3 a2 Qd5 a1B Qa2 h3 Ra4 Nh6 Bd5 Nf7 Ke2 Rh7 Bd4 Nc6 b8B Na5 Nd1 Nc4 Nf3 Kg2 Bf6 Bg3 Nb2 Rc1 Ra6 c6 Be6 Qa5 d8N Qc3 d7 Nfd6 Bg8 Re7+ Ne5 Ra7 Qa5 Re8 Rf1 h1Q Nb7 Qh2 d8N Re6 Rf2+ Kh1 Nf7 Re7 Nh8 Rf7 Nc5 Rae7 Nb7 Be6 Ng4 Bd7+ Be5 Rf5 Bf7 Be6 Bf6 Rc5 Ra8 Qg2 Ra6 h2 Ne3 Bh3 Bc7 Qe4 Rf4 Qe6 Bb8 Qc8 Rh4 Qe8 Bc7 Qb8 Rh5 Ne8 Na4 Qb3 Bf4 Ned6 Bg7 Be5 Nb2 Qc3 Bf6 Re8 Be7 Beg7 Bf6 Re4 Ra7 Re7 Ra6
4B3/3k2KP/Nqp2BB1/rrrb2nq/3B2Nn/1np3rQ/b2P3R/N3R3 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 Nc3 e5 Nb1 exf4 h4 gxh4 g3 h3 Qb3 h2 Qa4 Bb7 Qd1 Bc8 Nh3 h5 Kf2 h4 Ng1 h3 Ke1 Bd6 Kf2 Be7 Ke1 Bh4 gxh4 Rh7 Nc3 Rh5 Nb1 Rh8 Kf2 f5 Kf3 a5 b4 c3 e4 c6 e5 a4 e6 a3 h5 a2 b6 Na6 h6 Nc7 b5 Ra5 h7 Ne7 b7 Ng6 b8N Rg8 e7 Ne6 Na3 Qb6 Na6 Kd7 Bd3 Rg7 Rb1 a1N Nc2 Nb3 Qf1 Rg8 Ba3 Ng5+ Ke2 Rg7 Re1 Nh4 Bc5 f3+ Ke3 f2 Kf4 Rg8 Ke5 f4 Kf6 f3 Qg2 f1R Bd4 f2 Nf3 Rg1 Be4 f1R Na1 Rf8+ Kg7 Rf5 Bb1 Rc5 Bg6 Rf2 Qf1 Rg3 Qg2 Re2 Qf1 Ree5 e8B+ Ke7 Qd3 Be6 Qe3 Red5 Ne5 Kd8 Ng4 Ke7 Rhf1 h1B Rf2 h2 Rfe2 Be4 Rf2 h1Q Rh2 Kd6 Qf3 Bb1 Qg2 Ba2 Qh3 Rf5 Bf6 Bd5 Bd4 Qb8 b6 Qa7+ b7 Qb6 Bf6 Re5 b8B+ Ke6 Bef7+ Kd7 Bd6 Rcb5 Bc5 Rf5 Bcd4 Qf3 Ne3 Qh5 Ng4 Bf3 Rd1 Rfc5 Re1 Bd5 Be8+
N2N1rB1/7p/3n1NR1/1Pbqnr2/Nq2n1qB/1QPb2R1/2knB1p1/4K3 b - - 0 1 legal: proof: h4 f5 g4 c5 a4 b5 d4 cxd4 Qd3 g5 axb5 gxh4 e4 Qb6 exf5 Qd8 Qg3 hxg3 b4 Kf7 f4 Kf6 b6 e5 b5 d5 b7 a5 Ra4 e4 Kd1 g2 Rh3 e3 Rc4 e2+ Ke1 d3 Rf3 a4 Nd2 a3 Rg3 d4 Ra4 a2 Ra6+ Nc6 b8Q a1N Nc4 Nb3 Nb6 Bc5 Ba3 Ra7 Na8 Nh6 Qb7 Nf7 g5+ Kg7 f6+ Kg6 Qb6 Kf5 g6 Ke4 f5 Nce5 g7 Nd6 g8B Nd2 f7 Qd7 f6 Qg4 f8N Bf5 Ne6 Rf7 Nd8 Rf8 Bb3 Rhg8 Bb2 Rg5 Bg8 Bg6 f7 Rf5 Qa7 Ndf3+ Kf2 d2 Bc1 d1Q Bg5 Qd3 Bh4 Nd2+ Ke1 Qc4 Rc6 d3 Qa3 Qd5 Qb3 Kd4 Nh3 Ke4 Nf4 Kd4 Nh5 Ke4 Qb1 Kd4 Qa2 Kc3 Qc4+ Kb2 c3 Kc2 Nf6 N2e4 Rf3 Qd4 Qe6 Qb4 Qb3+ Kc1 Qe6 Bd4 Qa2 Ng5 Nd7 Nc8 Rd6 Rf4 Qd5 Re8 f8N Kc2 Rh3 Bc5 Rf6 Nd6 Ndb6 Rf2 Nfe6 Rf8 Na4 Be4 Re3 Rf5 Nf4 d2+ Kf2 e1N Rg6 d1Q Be2 N1f3 Nh5 Qdd4 Qf7 Nd2+ Ke1 Bd3 Rg3 Nge4 Nf6 Qdc4 Qd5 Qd4 Qc4 Qd5 Qb3+
4n2K/N1r1PBnb/6k1/2P1r1b1/1B4Bn/Q4rq1/2pqR1p1/1BRN2rR b - - 0 1 legal: proof: c4 c5 b4 e5 f4 exf4 g4 h5 gxh5 a6 Qc2 a5 Qc3 axb4 d4 bxc3 dxc5 Qf6 Bd2 Qg5 Bc1 Qd8 Kf2 g5 Kf3 d5 a4 b5 h4 f5 e4 Kf7 h6 g4+ Ke2 b4 Kd3 f3 Kd4 b3 Ke5 g3 h5 f4 a5 d4 a6 d3 a7 g2 h7 b2 c6 f2 c5 f3 c7 d2 h6 d1R Bd2 Ne7 Bc4+ Kg6 Nh3 f1Q Nf2 Bf5 c8B Qfd3 Na3 b1N Nb5 Rg1 Nd1 f2 Bd5 Rg8 h8Q f1R h7 Rg7 Qg8 Qh3 h8R Rf3 Be1 Nd2 Rc1 Na6 Bf7+ Kg5 Rh6 Bh7 Bg4 Nf5 Re6 Be7 Qe8 Rc8 a8B Nc7 Na7 c2 Bd5 Qh4 Qa4 Ne8 Qa3 Rc7 Ba2 Rg8 Bb1 Nfg7 Rd6 Rf8 Rd3 Kh6 Re3 Bg5 Re2 Re3 Bc4 Rff3 Bf7 Nb3 Bb4 Nd4 Bg8 Ndf5 Bf7 Nh5 Ke6 Qg3 e5 Qd2 Bg6 Rc8 Kf7 Rc7+ Kf8 Nh4+ Bf7 Nhg7 e6 Re5 e7 Bg6 Kg8 Be4 Bc4 Bh7+ Kh8 Kg6 Bf7+
2bq1R2/r1pk1N1P/1N1Nr3/1qnBbR1K/1n3N1B/6b1/1PqR2p1/1q1Q4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 h5 a4 e5 axb5 exf4 g4 hxg4 e3 fxe3 Ke2 g5 h4 f5 d4 a5 h5 g3 Kf3 f4 d6 e2 h6 e1B b6 g2 h7 a4 d5 a3 b7 a2 Ne2 g1Q Rh2 Bg3 Bg2 Nd7 Kg4 f3 b8N f2 Kh5 f1Q Na3 g4 Bg5 Qc5 Bh4 Bg7 Nf4 Qfb5 Nc4 Ra7 Bh1 Bf6 Rd2 Ne7 Rb1 a1Q Rc1 Nf8 Nd7 Qb1 Ndb6 Nc6 d7+ Ke7 Nd6 Nb4 Rc3 Ne6 Rf3 Qcc2 Rff2 Nc5 Rf1 Qg8 d8N Qge8+ N8f7 Qd8 Ne2 Re8 Rf5 Bh2 Bf3 g3 Nf4 g2 Nb7 Bg3 d6+ Kf8 d7 Re6 Bd5 Ke7 Nbd6 Qf8 Rg5 Be5 d8R Qg8 Rf8 Qh8 Na8 Kd7 Rf5 Qf6 Kg4 Qe7 Kh5 Qd8 Nb6+
2nN1r2/p1RRq1k1/2rb1B2/1r4r1/qR1b2P1/1BnKNPpQ/8/1N3n1R b - - 0 1 illegal: No possible last move, all moves rejected
2Q4b/p1r1N3/3P3K/1P6/r1BqqN2/2N1kp1b/nB1b1N1B/2bRR1nn b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 g4 hxg4 c4 e5 cxd5 exf4 axb5 c5 Qa4 cxb4 Qb3 Nh6 Qd1 Ng8 Kf2 Ke7 e4 Kd6 h4 Kc5 d6 Kd4 h5 g5 d3 f5 h6 f3 Kg3 f2 d7 f4+ Kh2 g3+ Kh3 g2 Kg4 b3 Kh5 g4 e5 g3 e6 b2 h7 f3 e7 Nc6 e8N Bg7 Nc7 Nge7 Qe1 Nd5 Qe6 Ncb4 Qh3 Na2 Qh2 Ndc3 Nh3 g1B Ng5 g2 Nd5 Ne2 Nbc3 b1Q Bb2 Bf6 Nf4 Ke3 d4 Qe4 d5 Rg8 Rd1 Bh8 Nf7 Rg4 Qh3 Qb6 d8N Qbd4 d6 Bf5 Qh2 Rc8 Ne5 Rc7 Ndc6 Rh4+ Kg5 Bh3 Qg3 Bh2 Qg4 Ng1 Bc4 f1N Qc8 Bg3 Ne7 Be1 Ned3 Bd2 Nf2 Ng3 Rh2 Rg4+ Kh6 Nh1 Re1+ Ne2 Rd1 g1B Rg2 Bh2 Rgg1 Bg3 N2d3 Bge1 Nf2 Bc1 Rf1 Bed2 Rfe1 Be5 h8B Bf6 Rf1 Be5 Bf6 Ng1 Bh4 Bh8 Bg3 Rg5 Bh2 Rgc5 Be2 Rc4 Rfe1 Ra4 Bc4+
1r2BRn1/4nb2/3n1Q2/q4r2/N1bPB3/NNPrrp2/Rp4Rn/3N1k1K b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 Bb2 dxe4 Bc1 h5 gxh5 c5 f4 e5 Bg2 c4 Bf3 e3 Bg4 c3 Bh3 e4 Bf1 Bd6 Bb2 Be5 fxe5 cxb2 d4 Kd7 Nd2 b1N a4 Rh7 h4 Kc6 h6 Kd5 c3 g5 a5 f5 a6 b5 h5 e2 Kf2 e1N e6 b3 e7 g4 e8N e3+ Kg3 b4 Kh2 g3+ Kh3 f4+ Qg4 e2 a7 g2 Kh2 Qa5 Nh3 g1R Ra2 Na3 Qg7 b2 Qf8 b1B Ng7 b3 Nf2 b2 Nd1 Rg3 Rg1 Be6 Rg2 Bg6 Nb3 Kc4 Kh1 Kd3 Qd6 Bd5 Ne6 Rf7 h7 Nb5 h8N Nc6 h6 Nf3 h7 Rf5 Nf7 Rb8 a8B Nh2 Qd8 Rf3 Qf6 Nce7 Nd6 Rg3 Nc4 Nd6 Bc6 Rh3 Na3 Bc4 Be8 Rf3 Nf2+ Ke3 Nec5 e1R Na4 Rd1 Rg4 Rd3 Bg2 Ke2 Nd1 Rfe3 Be4 f3 Rg3 Kf1 Rg2 Nh6 h8R Bgf7 Rf8 Nhg8 Ba8 Qb6 Bac6 Qa5 Be4
5KN1/2r3QN/BP1RBR1q/pn2k1p1/b1r5/3n2Nn/2Pr1R2/Rq1nn3 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra6 f4 Nb1 f3 Ra1 h6 Kd3 Be7 Bg5 Bd6 Kd2 Bf4+ gxf4 hxg5 Kd3 Kf7 Ke4 Ke6 h4 a5 b4 d3 f5+ Kd6 f6 d2 Kf5 g4 Kg6 g3 Kf7 g5 e4 g2 b6 Bb7 b5 Ne7 h5 Ra7 h6 Ng6 h7 Na6 Rh2 Ke5 Ne2 g1N Ng3 d5 Nc3 d4 Nd5 d3 Ne7 Bc6 b7 Nf4 b8R Ngh3 b6 Nc7 Ng8 Qd6 Rd8 Ba4 Rg2 Qe6+ Kf8 Nb5 f7 Rc7 Rd6 Qf6 Be2 f1N Rf2 Ne3 Qe1 d1N Qc3+ Nd4 Qb2 d2 Ba6 Nd3 Qc3 Ng2 Qb2 Kf4 e5 Nge1 e6 Nb5 e7 Qh6+ Qg7 Rc4 Rf6+ Ke5 e8B Rc7 Bd7 Rc4 Rh2 f2 Be6 f1Q Rhf2 Qh1 Ke8 Rc7 f8N Qf1 Ne7 Rg8 h8R Qg1 Kf7 Qh1 Nh7 Rgc8 Rd8 Rc4 Re8 R8c7 Rd8 Ndc3 Ra2 d1R Rd2 Ng2 Rdf2 Rd2 Kf8 Qb1 Rd6 Nge1 Ng8 Nd1 Ra1
R2r1RnB/2rNR1p1/4n1k1/6Pn/6pn/P1qqBN2/1r1N1Q1K/b1N3n1 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 g4 exf4 g5 d5 Bh3 h5 Bg4 hxg4 Qb3 c5 Qd1 Bd7 d3 Bb5 cxd5 c4 Nf3 c3 Ng1 Bc4 dxc4 Rh4 Nf3 Rh7 Ng1 Rh8 Kf2 f5 Kg2 Kf7 h4 b5 e4 c2 a3 b3 c5 f3+ Kg3 b2 d6 f2 e5 f1Q c6 f4+ Kh2 b4 c7 b3 c8N f3 d7 f2 e6+ Kg6 e7 Qa5 d8N Qc3 e8R Nc6 Re3 Qfd3 Rg3 Bd6 Qe1 Nd4 Nb7 Ra7 Nd2 b1R Nb6 b2 Nc5 Be5 Nbd7 Rc7 Ncb3 Ne6 Ngf3 Bf6 Qe2 Be5 Re1 Bd4 Rh3 f1N+ Kg2 Be5 Qf2 Ng3 Kh2 Bf6 Re4 Nh5 Ra4 Bd4 Ra8 Bf6 Ne4 Bd4 Be3 c1N Ned2 Ne2 Nc1 Ng1 Ra2 Ra1 Rf8 b1N Rb2 Ra2 Rbb8 Rb2 Ra8 Nhf6 Ndb3 Nd2 h5+ Kf5 h6 Kg6 h7 Nh5 Ne1 Bf6 Rf3 Bd4 R3f7 Bf6 Re7 Ndf3+ Kg2 Bd4 Nd2 Nh4+ Kh2 Ngf6 Rfc8 Rd8 h8B Ng8 Nef3 Rb1 Ne1 Qc5 Qg2 Rf8 Nef3 Ba1 Rd8 Rb2 Rdb8 Qcc3 Qf2 Re8 Rb5 Rec8 Rf5 Rd8 Rf8
3b1kNb/1r4np/3BPRbQ/1b4b1/3R3q/1NbBP1Np/1r2RK2/3bR3 b - - 0 1 illegal: No possible last move
r1B2k2/3b4/pb4r1/4NPNQ/3BRb1n/2KN3r/qRPp2B1/q1N1qb2 b - - 0 1 legal: proof: b4 b5 a4 f5 axb5 c5 h4 g5 d4 gxh4 e4 cxd4 b6 fxe4 b7 a6 b5 Nc6 b6 Na7 bxa7 Qb6 Rh3 Qc7 Rh1 Qd8 Kd2 h5 b8N d5 g4 e5 f4 h3 f5 e3+ Kd3 h2 g5 e2 g6 e1B g7 h4 Na3 e4+ Ke2 h3 Bh6 d3+ Ke3 d4+ Kf4 e3 Ke5 e2 Nc6 d2 Nc4 d3 N4a5 Bd6+ Kd4 Bd7 Be3 Bf4 Kc3 Rh6 Ra2 Ne7 g8N Rg6 Nb3 Bf2 Rb2 e1Q Bg2 Kf8 Nf6 Qa5+ Nb4 Qa2 Bd4 B2e3 Qh5 d1B+ Kc4 d2 Kc3 Be2 Ng4 Bd3 Ne5 Bf1 Ngf3 Qea1 Rg1 h1Q Nc1 h2 Ng5 Bf2 Bb7 Qe4 Rg3 h1R Rg4 Rh3+ Nbd3 Qe1 Rh4 Re6 Rg4 Ng6 Bc8 Rb6 Bb7 Nh4 Bc8 B4g3 Re4 Bf4 Qe2 Rg6 Qh5 Rb8 a8B Bg1 Bd5 Ra8 Re2 Bf2 Bg2 Bg1 Ba7 Bb6 Re4 Bd8 Bg1 Bb6 Bd4
n7/1bQ1PN2/1pn1b1K1/BP1BRBN1/b1kB4/q7/npqn4/q1r1NR2 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 exf4 g4 cxd4 b5 a6 Qd2 a5 Qb4 axb4 Na3 g5 Bb2 f5 Nb1 f3 Ba3 f4 Bc1 Ra6 h3 Rf6 h4 Rf5 gxf5 g4 Nc3 Bh6 Nb1 Bg5 hxg5 Qe7 Rh4 Qf6 Rh1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 c4 d5+ Ke5 h5 a4 h4 e4 h3 f6 b3 g6 h2 g7 b6 a5 d3 f7 f2 f8B+ Ne7 Kf6 b2 g8Q g3 e5 g2 a6 d2 e6 d1B a7 f3 a8N d4 Nd2 d3 Qg7 Na6 Nh3 g1Q Bg2 f1N Ng5 f2 Nc7 Ba4 Ne8 Qc7 Bd5 Qgg3 Ndf3 d2 Nd6 d1N Ne1 Qa3 Ndf7 Nc3 Bd2 Na2 Ba5 Nd2 Rf1 h1B Rc1 Kd4 c5 Nc6 e7 Be6 Kg6+ Qe5 Rc3 Nc7 Re3 Na8 Qg8 Qd6 Re5 Qc7 Bg7 Rh3 Qh8 Rc3 Qb8 Qc8 Qc7 Rc1 Rg1 f1Q Bf6 Qe2 Rf1 Qd1 Bg7 Rc2 Bf6 Qa1 Bg7 Rc1 Bh8 Nd8 c6 Rc3 Qd6 Rc2 c7 Bg4 Bc4+ Bd5 Bf6 Rc1 Ref5+ Ke3 Bg7 Bb7 Bd5 Bh3 Bd4+ Ke2 Ng2 Kd3 Re5 Be6 Qd7 Nc6 Qd6 Na7 Qc6 Qe8 Qc5 Qc6 Qd6 Qc2 c8B Bd7 Qc7 Nc6 Bf3 Bh3 Ne1+ Kc4+ Be4 Kb3 Bg4 Kc4 Bf3 Bd7 Bf5 Be6 Bd5+
1B5n/B1pN2qr/Rn2NR2/P4r1n/qq2R3/2P1NQ1K/2rpb3/Nk1r4 b - - 0 1 legal: proof: d4 e5 b4 a5 g4 axb4 f4 f5 e4 h5 Ba6 Bd6 exf5 hxg4 Bb5 e4 Bc4 Be5 dxe5 Nf6 Bg8 Nxg8 Kf1 Kf7 Kg2 d5 a4 b5 h4 g5 h5 e3 h6 g3 f6 Ke6 c3 Kf5 e6 Ke4 f7 e2 f8B e1R h7 b3 a5 b2 f5 b4 f6 g4 f7 b3 e7 d4 e8R+ Ne7 Rh4 d3 Qd2 Nd7 Rh5 Rd1 Rg5 Nb6 Qf2 d2 Ra2 Kd3 Na3 b1R Nc2 b2 Na1 Qd4 Ne2 Ng6 Rf5 Ba6 Rf6 Qa4 Ree6 Rc8 Bc5 Rcf8 Be3 Bb5 Qf3 Bc4 Nb3 Kc2 Nf4 Be2 Nd5 Ra1 Ra3 Ra2 Na1+ Kb1 Bf2 Rhg8 h8N Rg7 Rb3 Rh7 Re7 Re8 Re3 Re5 f8N Rf5 Nf7 Nh8 Ng5 Bb5 Re1 Be2 Kg1 g2 Nd7 Nf7 Be3 Nh8 Kf2 g1N Kg3 Nh3 Ne6 Nf4 Bc5 Bb5 Re4 Be2 Ne3 Nh5+ Kh4 g3 Kh3 g2 Rbb4 Nc8 Rb6 g1Q Ra6 Qg7 Ba7 Nb6 Bb8 Nc4 Ndc5 Na3 Nab3 Nc4 Ng4 Kc2 Nd7 b1Q Ba3 Qb2 Bd6 Kb1 Na1 Qbb4 Bc5 Rc2 Bca7 Nb6 Ne3
1bbn1N1R/1bB5/bp4P1/PNr2n2/Q3n1R1/2qk4/p1bR3b/1B1BKB2 b - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 c5 Rh3 cxd4 Rh1 g5 hxg5 a5 b4 a4 Be3 Qc7 Bc1 Ra5 bxa5 Qd8 Be3 Na6 Bd2 Nb4 Bc1 Nxa2 c4 Kf7 f4 Ke6 g4 d5 g6 h5 g7 b6 c5 e3 c6 h4 g5 Kf5 g6 Ke4 c7 e5 f5 a3 f6 e2 f7 d3 Kf2 e1B+ Kg2 h3+ Kh2 d2 Be2 d4 Bh5 d3 Qa4+ Nb4 Qd7 d1B Qe7 a2 Bg4 d2 Bh5 Qd4 Na3 Kd3 Nb5 e4 Ne2 e3 Kg1 h2+ Kf1 Bg3 Qe8 Bfd6 f8R Nc6 Rf2 Nh6 g8B Qc3 Ned4 Nf5 Ne6 Nd8 Nf8 Bc2 Bd1 Rh5 Re2 Bgf4 Rg1 h1B Rg4 Bh2 Ba3 Bdg3 Bd6 Bhb7 Bd5 Ba6 Bg2 Bcb7 c8B Be5 Ba3 Bb8 Bd6 Rg5 Bc7 Rh5 Re1 e2+ Kf2 Rg5 Rh1 Rh5 Bf1 Rg5 Rb1 Rh5 Rb2 Rg5 Bg2 e1N Bh3 Nf3 Kf1 Nd6 Bf5+ Ne4 Bg2 Nd4 Qc6 Bd6 Rh8 Bh2 Qc4+ Ke3 Qa4 Kd3 Bdf3 d1B Bh3 Bb3 Re2 Bdc2 Bhg2 Be6 Bh3 Qa3 Ke1 Bec8 Bf1 Qb2 Be6 Rc5 Bb3 Bb1 Bd1 Bc2 Bh1 Nf5 Bhg2 Nd2 Bc6 Qc3 Bd7 Ng7 Bf5+ Ne4+ Rd2+ Ke3 Rg2 Bd3 Be6 Nf6 Rg4 Bde4 Beb3 Nf5 Bbc2 Bd3 Bb1 Bc2 Rg5 Ne4 Rg4 Qg7 Re2+ Kd3 Rgh4 Qb2 Rg4 Qc3+ Rd2+
2B1R2b/1knPR2Q/2BB2K1/bpbnq2p/P1b3n1/3N2B1/b7/N1rbR3 b - - 0 1 illegal: No possible last move
RqR1R2n/8/2N1RN1K/1nr5/N1q3P1/1pk1nPn1/Q2b2p1/B1r1qBq1 b - - 0 1 legal: proof: c4 a5 e4 f5 b4 axb4 Qa4 fxe4 Qd1 d5 cxd5 h5 g4 hxg4 h3 g3 Qf3 g2 Qh5+ Kd7 Qd1 Ke8 Ba6 g5 Bf1 g4 Be2 g3 Bf1 Bg4 hxg4 Rh3 Qb3 Rh7 Qd1 Rh8 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Ke3 c5 a4 b5 d4 b3 f3 b4 d6 b2 a5 c4 a6 c3 d5 c2 a7 b3 d7 Bh6+ Ke2 e3 d6 e4 Rh4 Ke5 Rh2 Na6 Na3 b1N Qe1 Kd4 Qd1+ Nd2 Nc4 Qb8 d8N Nc7 d7 Kc3 Rh4 Nb5 Nh3 g1Q Ra6 g2 Nf2 Ne7 Nb2 Ng6 Nc6 Rc8 d8R Nh8 Re8 Nc4 Qd8 Ncd6 Qe7 Nf5 Qa3 Bg5 Qa2 Ng3+ Ke1 e2 Rh5 Nf7 Rhh8 Rc7 Rhf8 Nh8 Rc8 Bf4 Rfe8 Bg5 Nd8 Bh6 Rae6 Rc5 Nc6 Bf4 Be3 c1Q+ Nbd1+ Kc4 Bd4 Be3 Ba1 Qc2 Nb2+ Kc3 Nh3 Qd3 Ng5 Qc4 Nh7 Qb6 Rcd8 Rc8 a8R Qb8 Nf6 Kc2 Qa6 Re5 Nd1 Qd5 Qa5 Kd3 Ne7 Rc1 Rc8 Rh5 Nf5 Qc4 Qa2 Bh6 Ne7 Rc5 Neg8 Qh1 Kf2 Bd2 Nb2+ Kc3 Ne7 e1N Nc6 Nc2 Bd3 Qh6 Bf1 e3+ Kg1 Qg5 Kh2 e2 Kh3 Qe3 Kh4 e1Q Bd3 Nf5+ Kh5 Q3g1 Bf1 Nce3 Kg5 Ng3+ Kh6 Rd1 Na7 Rb1 Nc6 Rc1 Na4#
2RN3q/r1B2pB1/n3qB2/N1R4k/Q2P1B2/1n1p1nr1/P7/1qNqbK1n b - - 0 1 illegal: No proof kernel
4r2q/1Pn3Rp/2bN1q2/5Q1R/2RNq3/2kp3B/P1rbq1B1/NK1Rb2b b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 b5 h4 gxh4 d4 c5 Ba3 Na6 Qb3 bxc4 b5 c3 Qd1 c4 Bb4 Nc5 dxc5 axb4 g4 Kf7 f4 Kf6 b6 d5 c6 e5 b7 b3 c7 e4 Qc1 c2 Kd2 d4 Be2 b2 Bf3 h3 Na3 b1Q Qf1 h2 Ne2 Ne7 Bg2 Bd7 c8N Bc6 Nd6 c1B+ Kd1 e3 Nc2 d3 Ned4 c3 Bh3 Qb2 g5+ Kg7 g6 Kf6 g7 Nd5 g8B Rc8 Qf2 Nc7 Bd5 Bd2 Bdg2 Be7 Rc1 Re8 Na1 Qb4 Rf1 h1B Rc2 Be1 Kc1 e2 Rg1 Qc4 Kb1 Bd2 Rcc1 e1Q Rd1 Qe2 Qf3 Qg8 Qf1 Qh8 Qf2 Kg7 f6+ Kg6 f7 Kf6 f5 Ke5 f8R Bh4 Rg8 Qdf6 Rg4 Qe4 Qf1 Bhe1 Rh4 Kd5 Rh5 Kc5 Qf3 Kb4 Qf1 Qg6 f6 c2+ Kb2 Qh6 f7 Q6f6 f8R Qe2 Qf5 Qe4 Nb3 Qe2 Ka1 Kc3 Rg8 Qe4 Rg7 Qe2 Rf1 Qe4 Rf4 Qe2 Rb1 c1Q Rfg4 Qa3 Rd1 Qc5 Kb1 Qd5 Na1 Qde4 Rf7 Ra8 Rd7 Ra4 Rgg7 Rc4 Rd8 Kb4 Ra8 Rc2 Ra4+ Kc3 Rc4#
1Qb5/q1kBP2N/1bn1R2b/1bq3pp/1R1B1P1b/1N2R1r1/q2R4/1bB1K3 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 f5 b5 e5 b6 exf4 g3 f3 Qb3 axb6 Kd1 b5 Kc2 f2 Kc3 Nc6 Qd1 b4+ Kc2 Nb8 Ba3 b5 Bc1 f4 Qe1 f3 Qd1 Nc6 h4 g5 h5 Ne5 Ba3 Rb8 Bc1 Ng6 hxg6 Rb6 Bh3 Rf6 Bf1 Rf4 gxf4 Be7 Na3 Bd6 Nb1 Bf8 a4 Kd7 d4 c5 Kd2 h5 e4 b3 g7 b2 a5 b4 d5 b3 e5 Rh6 a6 Kc7 a7 Ra6 a8R Qe7 e6 Ra3 Nc3 b1B Ne4 b2 Bh3 f1B Ra6 c3+ Ke1 c4 Rh2 c2 Nf6 c3 Rd2 Qc5 Ne2 Ne7 g8R Nc6 e7 Bh6 Nd4 Bb5 Bd7 Qa7 Qe2 Qc5 Nh7 f2+ Kf1 Rb3 R1a3 Qa7 R6a4 Qc5 Rg6 Qa7 Kg2 f1Q+ Kg3 Qc5 Qg2 Qg1 Re6 Qa7 Rb4 Qe3+ Nf3 Qeb6 Nd4 Qc5 Ra2 Ra3 Kf2 Rb3 Rd3 Ra3 Rde3 Rb3 Bd2 c1B Ke1 c2 Qh1 Rc3 Nb3 Rd3 Re2 Rg3 d6+ Kb7 Be3 Kb6 Bd4 Be3 Qe4 Bg1 Re3 c1B Qf3 Bg6 Qd5 b1Q Rd2 Qba2 Qg2 Bb1 Bb2 Ne5 Qa8 Nc6 Bd4 Ba3 Bb2 Bh2 Bc1 Bb2 Be8 Be5 d7 Bd6 d8B+ Bc7 Bd7 Bg1 Nf6 Bf2+ Kd1 Ka6 Nh7 Ba5 Bc7 Be1 Bb8 Kb6 Be5 Bf2 Bd4 Kc7 Rg6 Bb6 Rge6 Rg4 Rdd3 Bh4 Rd2 Rg3 Ke1 Qb8 Be8 Qb7 Bd7 Qba7 Qb8+
R5R1/qk1BPBB1/1rnK1Bq1/QN2np2/3R1p2/2n4r/rrP3r1/1N4q1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 g5 cxd4 Bd2 e5 Bc1 exf4 h3 b6 Bd2 Bb7 Bg2 Bf3 Be3 Bg4 Bd2 Be7 Bc1 Bf6 gxf6 g5 Bf1 Bh5 Ba3 g4 Bb2 g3 Bc1 Bg4 hxg4 Ra6 Rh6 Ra4 Rh1 Ra8 Kd2 d5 Kd3 Kd7 a4 Kc7 e4 h5 a5 g2 a6 h4 a7 b3 f7 h3 f8B b2 g5 h2 g6 b5 g7 b4 e5 b3 e6 Ne7 g8R Kb7 Be3 Nbc6 Nc3 b1R Qc1 b2 Rg6 Qb8 Bd2 Rg8 Nge2 g1Q Qe1 Qc7 Rg3 Ng6 e7 Qg2 Rg1 h1R Bg7 Rh3 Nb5 Qa5 Bc3 Nge5+ Kd2 Qb6 Rd3 Qg6 Bg2 Qa6 Bf3 Qa4 Bh5 Qa3 Nc1 Qa2 Nb3 Qa4 Ke2 Qa2 Rd1 d3+ Kd2 d4 Rg4 Qe6 Bf7 Qg6 Rg5 Rc1 Rg1 b1R Rg2 Rb2 Rg4 Rab8 a8B+ Kb6 Bb7 Qa7 Bc8 Ra2 Bce6 Kb7 Bd7 Rb2 Ra5 Ra1 Rg3 Raa2 Bf6 Qc5 Ra8 Qa7 Rg5 Ng4 Qe5 Rg7 Qc5 Nge5 Qa3 Rgg8 Qa5 Qh7 Bg6 Nc4+ Ke1 d2+ Ke2 Qh6 Bh8 d3+ Kf1 Qh5 Bcf6 N4e5 Bf7 Qh6 Ra1 d1N Nd2 Nc3 Rd1 Rg7 Nb1 d2 Rg6 Rc8 Rg3 Nb4 Rg2 Rc6 Rg5 Na4 Ke2 Rb6 Rg6 Nbc6 Rg4 Nf3 Kd3 Nc3 Kc4 Nfe5+ Kc5 Rg5 Kd6 Qg7 Rh4 Rg2 Rg4 Qh6 Rgg8 Qh7 Re1 Qg6 Re4 d1Q+ Rd4 Qg1 Bg7
2kr1q1n/1B3QBN/7N/1rpN1N1r/1b3qqp/5rP1/1RqPK3/1q2R2B b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 Nh3 g5 Qc2 f4 Bg2 Bf5 gxf5 g4 Ng1 g3 Kd1 Na6 Bf1 g2 Ke1 Nc5 Qb3 Ne4 Qd1 Ng3 hxg3 Qb8 Rh4 Qc8 Rh1 Qd8 e4 Kd7 a4 b5 f6 h5 a5 c3 a6 f2+ Ke2 h4 e5 b3 f7 f3+ Kd3 c2 a7 b2 e6+ Kc8+ Ke3 b4 e7 b3 e8N Nh6 Ne2 g1Q Bg2 Bb4 f8N c5 Nh7 Nf7 Nef6 Qf8 Nbc3 b1Q Qf1 b2 Ra2 Qh2 Ng8 Qh3 Kd3 Qg4 Nd4 Rb8 a8B Rb5 Qe2 f1Q Nd5 f2 Nh6 Rb8 Ke3 Rb5 Qe1 Qc4 Qe2 f1R Ndf5 Qcf4+ Kd3 Rb8 Qe7 Rf3+ Ke2 Rb5 Re1 Rb8 Nhf6 Rh7 Bh1 Nh8 Qf7 Rb5 Nhg8 Rh5 Ngh6 Qa1 Bg2 b1R Bb2 c1Q Nh7 Qc2 Bg7 Rb2 Bh1 Qab1 Bc6 Rbb3 Rb2 Rbd3 Nde3 Rd6 Nd5 Rd8 Bb7+
RB5R/4Nn1b/3q4/b1p1R1p1/2rb2kB/1n1pQ2N/1Pq1R2P/1Nr1n2K b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 a4 b5 axb5 Rh5 Nc3 Rh6 Nb1 Rh8 c4 c5 d4 cxd4 c5 Rh5 Bd2 Rh4 Bc1 Rh8 c6 Na6 c7 Nb8 Bg2 Bb7 Bf3 Bc8 Bc6 dxc6 Kf1 Kd7 Kg2 a5 f4 g5 f6 Ke6 b6 Kf5 b7 e5 f7 g3 Nh3 e4 Rf1 a4 Qb3 e3 Kg1 e2 Rf2 e1N Bd2 d3 Rf3 g2 Be3 a3 Bc5 a2 Bd4 Ra4 Qc3 Rc4 Qc2 Na6 b8B Nh6 Rf2 Qd6 Qd2 Nc5 Re2 Nb3 Bf2 Kg4 Qe3 Bf5 c8N Bh7 f5 Be7 f8R Bd8 f6 Ba5 Bh4 Nf7 Re8 c5 Rf2 Rf8 Re5 Re8 Re2 Rc1 Rf5 Re4 Ne7 Rf4 Re5 Rfc4 Kf2 g1B+ Kf1 Nh6 f7 Bf2 f8R Nf7 Qd2 Bd4 Qe3 R4c3 Kg1 Rc4 Nd2 R1c3 Rh8 Rc1 Rb1 a1Q Kh1 Qa2 Ra1 Qb1 Ra2 Qc2 Nb1 Bd8 Ra6 Ba5 Ra8
5n1q/7r/2n1bNBP/2Nb1p2/rR1p2NK/r1k2p1b/1P3Rb1/QB3N1B b - - 0 1 illegal: Other
2Rrb3/2b2nkp/1pq3bn/P4NQB/p1r2N2/K2BR3/nPN2n2/6NB b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 d3 Qd6 Be3 Qd8 Bb6 axb6 a4 b5 a5 Bg7 Qb3 Bf8 Qa4 bxa4 Kd2 c5 Kc3 f5 e4 Kf7 g4 f3 d6 b6 g6+ Kg7 d7 c4 d4 f2 e5 f4 g5 f3 d5 Nh6 e6 Ba3 e7 Rg8 e8B Nf5 d6 Qc7 d8Q Bd7 Bd3 f1N Rh3 f2 Re3 Nh2 Bf7 Bc5 Na3 f1B Nc2 Be8 d7 Bd6 Rc1 Qc6 Bd5 Ng4 Bh1 Bf4 Kb4 c3 Ka3 Bc7 Qe7+ Kh8 d8N Nf2 Qc5 Nd7 Ne6 Rc8 Nf4 Ne5 Qe7 Rf8 g7+ Kg8 Qc5 Nh6 Qb5 Kf7 g8B+ Kg7 g6 Nef7 Qg5 Be2 Nfh3 Bh5 Nf4 Nh8 Be6 N8f7 Bg4 Rd8 Bd1 Rd4 Bg4 Rc4 Bgf3 Kg8 g7 Bg6 Na1 c2 Bfe2 Nd6 Bh5 Kf7 g8N Kg7 Ne7 Ndf7 Rd1 c1N Nc2 Na2 Rc1 Rh8 Nf5+ Kf8 Bd5 Rb4 Rf3 Qf6 Rf1 Bd7 Be2 Bd8 Nce3 Rg8 Rd1 Bb5 Rd4 Rc4 Nc2 Bc7 Re3 Bd7 Bf1 Qc6 Bh1 Rh8 Bd3 Kg8 Nh4 Kg7 Rde4 Rg8 Re8 Rf8 Ra8 Rd8 Rc8 Be8 Nf5+
R7/5p2/2NB2p1/K1np2BP/5rQb/N1P3Bn/br1RR1B1/qr3rkq b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 d4 c5 a3 cxd4 a4 b5 axb5 axb4 Kd2 Ke7 h4 Kf6 e4 Ke5 b6 b3 h6 d3 Kc3 b2 h7 f3 h5 g6 b7 d2 Ne2 f2 Ra6 Be7 Nd4 Kf4 e5 Kg3 e6 Nf6 Kc4 Ng4 Kb5 Qa5+ Kc4 Bh4 c3 Qa1 Na3 b1R Bg2 f1R e7 Kf2 Rh2 Kg1 e8R Nf2 Qg4 d1Q Nc6 Nh3 Re2 d5+ Kc5 Bf5 Bg5 Rf8 h8B Nd7+ Kd6 Bc2 Kc7 Rfb8 Be5 Bb3 Bd6 Nc5 Kb6 Ba2+ Ka5 Rb2 Rd2 Qdb1 Bg3 Qd1 Be4 Qf3 Rhe2 Qh1 Bf3 Re8 b8B Re4 Bbe5 Rab8 Ra8 Rf4 Bd6 Rbb1 Be4 R8b2 Bg2
qR1N1Bb1/n1B3rR/1P2B1p1/N6B/1rp4n/1r1PrRr1/2QK2p1/5q1k b - - 0 1 legal: proof: c4 d5 a4 dxc4 h4 e5 f4 exf4 h5 b5 axb5 g6 g3 fxg3 h6 Bg7 hxg7 Qd6 Rh5 Qd3 Rh1 Qd8 b4 Ke7 e4 Kd6 e5+ Kd5 b6 Ke4 b7 c5 e6 h5 e7 a5 e8R+ Ne7 g8B f5 b5 a4 b6 a3 Rh4+ f4 Ke2 c3 Bb2 a2 Bf7 c2 Ke1 c1R B1c4 Nc6 b8B Rc3 Bc1 Re3+ Qe2 Rg8 Bfe6 Ra3 Bd7 Rb3 Ba7 Rg7 Rf8 Nf5 Rh2 h4 Rh8 f3 Bce6 c4 Bb8 h3 Bc7 Nh4 Ba3 Na7 Bf8 f2+ Kd1 g2 Nf3 f1Q+ Kc2 Bb7 Ne5 Kf4 d3 Kg3 Kd2 Bd5 Rh1 h2 Nf7+ Qf4 Rg8 Qa8 Nd8 Rb4 Rf1 h1R Rf3+ Kh2 Ba4 Kg1 Bd1 Rh3 Rh8 Rg3 Rh7 Nf5 Kc1 Nh4 Nd2 Qf5 Nb3 Kh1 Na5 Rb3 Kd2 Qf7 Rc1 a1R Rb1 Ra4 Ra1 Rab4 Rf5 Qc6 Kc1 Qf6 Bg8 Ra3 Nab7 Kg1 Qc2 Nb5 Kd2 Rab3 Ra8 Kh1 Rb8 Na7 Na5 Qa8 Bh5 Qa1 Rf3 Qf1 Bf7 Be6 Be8 Bd5 Bd7 Bg8 Be6
7B/2q1n1pp/R1P2k2/2bbNr2/Q2bBN2/1RpK1b2/1B1P1Nrb/2q4B b - - 0 1 illegal: Other
brrB4/N1Qq3q/1b1B1Rq1/1Pp1p3/2K1B2k/1p4NP/B1b2N2/1bn3R1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 b4 a5 c4 axb4 d4 b5 d5 b3 d6 b4 Bd2 Nc6 Nh3 Nd4 Ng1 Ra5 Bh6 Rd5 Bc1 Nb5 cxb5 Rxd6 Bh6 Rd4 Bc1 Rd2 f4 Kf7 a4 Kf6 h3 e5 a5 g5 a6 d5 a7 g3 a8B g4 Bb2 d4 Be2 g2 Ba3 b2 Qc1 d3 Nc3 b1B Be4 g3 Nd1 Qd7 Nf2 Rc2 Ra2 Rc4 Kd2 Ne7 B2f3 c6 Ne2 Nd5 Rg1 Nc3 Bd5 Bd6 Bfe4 Bb7 Ra1 Rc5 Ba2 b3 Bb4 Bf8 Ba5 Ba8 Bd8+ Be7 Rf1 g1Q Qc2 g2 Ng3 Ne2 Qc4 Nd4 Kc3 d2 Kb4 d1B Qc2 Rd5+ Kc4 Ne2 Qc3 Rd6 Qa5 c5 Qc7 Qh2 Rg1 Rb6 Rf1 Kf7 f6 Rb8 f5 Bdc2 Rg1 Nc1 Rf1 Kg8 f7+ Kh7 f8N+ Kh6 f6 Kg5 f7 g1Q Ne6+ Kh4 f8B Bg5 Nd4 Qhh1 Bg6 Qb7 Bd6 Qgg2 Nc6 Re8 Bf6 Rec8 Be4 Qa7 Bd8 Be7 Ne2 Qg6 Ng3 Qb7 Na7 Bf6 Qb6 Qdh7 Qa5 Qbd7 Qc7 Be7 Nfh1 Bg5 Rf6 Bd2 Nf2 Ba5 Qb7 Bb6 Qc6 Qgg7 Qc7 Qgg6 Nd1 Ne2 Nb2 Bd1 Bb7 Be4 Nd3 Bf5 Nf2 Be4 Rc1 Bb1 Be4 Bdc2 Rh1 Nc1 Rg1
rq1kb3/3N3B/2r1qp1B/r2q1NB1/1nR3qP/R2Q4/PRp1bRp1/6K1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 b6 exf4 g3 h4 Bh3 axb6 Bg2 b5 Bf1 b4 Nf3 g5 Qb3 g4 Ng1 Be7 Qc2 h3 Qd1 Bh4 gxh4 g3 Nf3 g2 Qc2 Na6 Ng1 Nc5 Qb3 Ne4 Qd1 Ng3 hxg3 Qd4 Na3 Qd5 Nb1 Qd8 Kf2 b5 e4 c5 d4 h2 e5 f3 d5 c3 d6 c2 g4 b3 g5 b4 g6 c4 g7 c3 e6 b2 e7 b3 Bg5 c1R Ne2 Rh5 Nd4 Bd7 Nf5 Nf6 Nd2 b1Q Ne4 b2 Nc5 Nd5 Bd3 Nb4 Rf1 h1Q Bh6 Qh3 Kg1 Qg4 Rf2 Qc8 Be4 Qd3 Rb1 Qd5 Bd3 Bc6 Nd7 Rc2 Rc1 b1Q Be4 Qb8 Qd3 Qbb3 Rb1 Qe6 Rb2 Bb5 Nf8 Qbd5 g8R Qf4 Rg3 Qg4 Nh7 Kd7 e8R Rg5 Re7+ Kd8 Rc7 Be8 d7 Rh5 Rc4 Rg5 Re2 Rh5 Nf6 f2+ Kh2 f1B Kg1 Rg5 Rf2 Be2 Rd4 Kc7 d8B+ Kc8 Nd7 f6 Bc7 Rh5 Bcf4 Kd8 Bc1 Rd2 Rc4 c2 Qf3 Rd3 Bcg5 Rda3 Qc3 R3a6 Qd4 Rd6 Ra3 Rc6 Qd3 Bf3 Ne3 Qc5 Bf4 Be2 Bh7 Rd5 Bfg5 Qcd4 Qd1 Rda5 Qd3 Qdd5 Nf5
2BN3q/R1K2Q2/N2Pq1nb/1B1Nk1Br/rpnPN1R1/2p2rp1/5r2/7n b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 fxg3 h3 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Ke7 Qc2 Kd7 Qd1 Ke8 a4 Ke7 e4 Kd6 Ke2 b5 Ke3 c5 Kf4 f5 g5 h5 e5+ Kd7 e6+ Kd6 e7 b3 e8N+ Kd7 Ke5 b4 g6 b2 g7 h4 a5 f4 a6 c4 a7 h3 Ne2 g1Q Nc7 h2 Ne6 f3 Qb3 f2 Nbc3 b1R Bb2 Rh7 N2f4 Re1+ Ne4 Ne7 g8B Re2 d6 Ng6+ Kd5 Nc6 Bf6 c3 Bg5 Qe7 Nd8 Nce5 Ra3 Rh5 Be6+ Ke8 Ra1 Nc4 Kc6 Bh6 Bc8 Qe6 Kc7 Re3 Ra4 Rf3 Nd5 Qg2 Be2 f1R Ra6 R1f2 Re1 Rb8 a8N h1N Ra7 Qh2 Qa2 Kf8 Bf1 Kg7 Be2 Na3 Bb5 Rb6 Re3 Ra6 Rd3 Ra4 Rd4 Ne7 Qc4 Kg6 Qf1 Kf5 Rc4 Ke5 Rd4 Re2 Qf2 Nc4 Qf1 Rd3 Qf7 Rf2 Kb8 Rh4 Nef6 Ng6 Nac7 Bg7 Na6 Rdf3 Rg4 Rh8 Ne4 Qh7 Nac5 Qg8 Kc7 Rh5 Na6 Bh6 Nac5 Qf8 Na6 Qh8 d4+
1n1B3K/7P/2k1p1p1/RP4p1/b5n1/q1rqr2B/1NNnQRnq/2N2RR1 b - - 0 1 legal: proof: e4 d5 g4 b5 g5 a5 g6 hxg6 Nh3 g5 Ng1 d4 Bd3 Ra6 Bc4 Rd6 Bf1 Rd5 exd5 Rh5 Bg2 Rh3 Bf1 Rh8 a4 bxa4 f4 c5 f5 c4 f6 g6 d3 Bg7 fxg7 cxd3 Kf2 Kd7 Kf3 f5 b4 d2 c4 a3 h4 a2 h5 d3 h6 a4 d6 e6 c5 a3 c6+ Ke8 c7 Kd7 h7 f4 Ke4 f3 Ke5 f2 Bh3 f1N Ne2 Kc6 d7 Ng3 Rf1 Nh6 g8R Ne4 Bb2 Bb7 c8N Qc7+ Nd6 Ng4+ Kd4 Bc8 d8R Bd7 Nc4 Qh2 Nc1 Be8 Qc2 d1Q Qe2 d2 Rd5 Qb3 Rf2 d1N Rgf8 Nd2 Ra5 Nde3 Rf1 Rg8 R8f2 Ng2 Bc3 Bd7 Nb2 Rc8 Rg1 Kb6 Rgf1 Ba4 Rg1 Kc6 Rgf1 Nf3+ Ke4 Rc7 Bf6 Nd2+ Kd4 Qf3 Bd8 Qb3 Nc3 Rc8 Nb5 Qf3 Rb1 a1R Rg1 a2 Na3 Qf5 Nc2 Qb5 Nb3 Qa6 Rbf1 Re1 Nc1 a1Q Rf4 Nh6 Ke5 Qa3 Kf6 Q6d3 Kg7 Ng4 R4f2 Rc7+ Kh8 Rc8 Qe5 Re3 Qe4+ Kd7 Qf3 Rc3 Qe2 Kc6 b5+
RNq5/2b1p1P1/r1N1P2b/1p6/bp1Rr1bn/1B1BkB2/3N4/r1q1N1QK b - - 0 1 legal: proof: g4 c5 d4 a5 b4 axb4 f4 d5 c4 h6 g5 g6 f5 gxf5 g6 Na6 Bg5 hxg5 cxd5 f4 Qd3 c4 Qd1 Nc5 dxc5 Be6 Nh3 Bf5 Ng1 Bc8 Kf2 Kd7 Kg2 f5 a4 b5 e4 c3 h4 c2 c6+ Kd6 h5 Kc5 d6 c1Q d7 g4 c7 g3 h6 Qe8 d8N Ra5 h7 Nh6 e5 Ra6 Bd3 Kd4 a5 Ke3 Rh4 f3+ Kh1 f4 Nc6 f2 Nf3 f1B Ne1 f3 Nb8 f2 Rd4 Be2 Nd2 Bcg4 c8B Nf5 Be6 Nh4 Bb3 Qec8 e6 Bh6 g7 Rd8 h8N g2+ Kh2 f1R Nf7 g1B+ Kh1 Rd5 Nd8 Re5 Ndc6 Re4 Ra3 Qb1 Qc1 Bd1 Qc5 Qc1 Ra4 Rb6 a6 Bc2 a7 Ra6 a8B Bcd1 Qb6 Bc2 Nef3 Rd1 Qc5 Bh2+ Ne1 Bc7 Bb7 Rb6 Ra8 Ra6 Bd5 Ba4 Bb3 Qc2 Ne5 Qc4 Bd5 Ra1 Nec6 Rf4 Bf3 Qc1 Qe5+ Re4 Qg3 Bf5 Qg2 Bg4 Qg1+
Rq1N2NN/1PB3p1/1r1B4/K2n1r1R/N4pp1/5bq1/2k4P/BQnn1n1r b - - 0 1 legal: proof: f4 e5 g4 b5 d4 c5 a4 cxd4 g5 f5 axb5 Be7 Bh3 exf4 Bg4 Bf6 gxf6 h5 Qd3 hxg4 Qd2 Rh4 Qd1 Rh8 Kd2 Kf7 e4 Kg6 b4 d5 c4 a5 b6 a4 f7 a3 f8B d3 Kc3 a2 b5 d4+ Kb4 d2 c5 d3 b7 f3 e5 f2 c6 f1R c7 f4 e6 Kf5 e7 Ke4 e8N Ra6 b6 Nf6 Ne2 Rg8 Bd6 Nbd7 b8B Ne5 Bb2 Rf8 Nd4 Bb7 c8N Nd5+ Kb5 Rf6 Nc6 Rf5 N8e7 Rg1 Qb3 d1N Ng6 d2 Bbc7 N1e3 Nc3+ Kd3 Nf6 d1N Ng8 Nf1 Nh8 Qb8 Nd8 Kd2 Na4 Nd3 Rb1 Nc1 Ba1 Ba8 Qb4+ Kc2 Rb3 Bb7 Rh3 Ba8 Rh5 Bb7 Bf6 a1Q Bd4 Qa3 Ba1 Qg3 Qe1 Bc8 b7 Rb6+ Ka5 Bd7 Qb4 Bb5 Qe1 Be2 Qb4 Nd2 Qb5 Re1 Rg1 Bf3 Rg2 Rg1 Re2 Re1 Re8 Nf1 Qb1+ Kd2 Bc5 Nfe3 Rh4 Rh1 B5d6 Nf1 Ne6 Qc8 Rh5 Qd8 Re7 Qe8 Rd7 Qf8 Rd8 Qe8 Ra8 Qb8 Qb5 Kc2 Nd8 Qh3 Qb4 Qg3 Qb1+
1Kn4q/pP5P/Nn2b2b/B3p1Bk/2N2q2/2q1r3/B1NBp1R1/1Qb2R1b b - - 0 1 legal: proof: e4 c5 a4 f5 d4 fxe4 b4 cxd4 g4 b5 axb5 h5 c4 hxg4 b6 Ba6 b5 Bc8 c5 Na6 c6 Rb8 Bc4 Rb7 cxb7 Nb8 Be2 Nc6 Bf1 Nb8 Kd2 Kf7 f4 Kg6 h4 d5 f5+ Kh5 f6 g5 f7 e5 Ne2 d3 Ke3 d4+ Kf2 d2 Rh2 d3 Ke3 g3 Na3 g2 Nc4 g4 Nd4 Nd7 b8B Ne7 b7 Nb6 Bc7 Be6 b8N Nec8 Nc2 g1B+ Rf2 Ba3 f8B Rh6 Bg7 Qh8 Na6 Rh7 Qe1 d1B Bh6 g3 Bd2 g2 Bg5 Bf3 Qb1 Bc1 Ra2 Bh2 Rb2 g1Q Bg2 Na4 b6 Qf1 b7 Nab6 Bh1 Qh3 Rf1 Qf5 Bg2 Qff8 Bh3 Bh1 Bf5 Rg7 Bh7 Qb4 Bg8 Qc3 Ra2 Na8 Ba5 Bf4+ Kf2 Nab6 Bf7+ Kg4 h5 Rg6 h6 Kh5 Bg8 Rg7 h7 Rd7 Bf6 Bh6 Bfg5 Rd5 Ke3 Rb5 Rf2 Rb3 Rg2 Ra3 Ra1 Rb3 Kf2 e3+ Kf3 e2 Ke4 Bh3 Nb2 Ra3 Ba2 Be6 Nc4 Rb3 Bdf4 d2 Be3 d1Q Bd2 Bd5+ Kf5 Be4+ Ke6 Qf1 N4a3 Qf4 Nc4 Na8 Kd7 Bf5+ Kc6 Nab6 Kc7 Be6 Kb8 Qb2 Rf2 Re3 Rg2 Qc3 Qb4 Ba3 Rf1 Bc1 Qb1
1n1n1rRr/KR3r1N/1P6/1qQB2rk/B6P/B1rB2p1/RprNb2p/8 b - - 0 1 illegal: No proof kernel
1B6/p1pn2R1/1nBN3p/2b3Qq/1nnPr3/3B1P2/Nn1n1B1N/k2bR2K b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 c4 fxe4 h4 gxh4 b6 d5 b7 dxc4 bxa8B Bg7 Ra3 Bh6 Ra1 Bf8 g4 Kf7 d4 Ke6 b4 c3 b5 h3 b6 e3 b7 Kd5 g5 e5 g6 e2 g7 Kc4 Ra3 e4 Be3 h6 Bg5 c2 Nc3 c1N Na4 h2 Ra1 Nd7 b8B Nb6 Qd2 Kb3 Nc3 Na2 Qd3 Kb2 Qh3 Bc5 Qh4 Qd5 Bg2 Bg4 Be7 Qh5 Bf6 Nb4 Bc6 Bf3 Bg5 Nf6 g8N Nfd7 Ne7 Re8 Nc8 Re7 Be3 Re6 Kd2 e1N Nd6 Nec2 Bf1 Na3 Ke1 Bd1 Nf3 Nac4 Rg1 h1N Na2 Ng3 Bd3 Nf1 Nh2 Nfd2 f3 Re5 Bf2 e3 Qd8 e2 Rg7 Re4 Qg5 Nde5 Bg1 Ned7 Kf2 e1N Kg3 Ng2 Bf2 Ne1 Bc2 Ned3 Kg2 Qe8 Rc1 Qh5 Bb1 Ka1 Kh1 Ndb2 Bd3+ Nb1 Rc3 Nbd2 Rc2 Nb3 Re2 Nbd2 Re1
R1R2n1K/Qp4pn/1bNrP3/r3n1N1/N1k1bR1R/1b2P2n/rp2B3/3B4 b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 Na3 f5 Qd3 h6 Nb1 Qf6 Bg5 f4 Qd1 Qf5 gxf5 hxg5 Kf2 Ke7 Kf3 d5 Kg4 d3 c4 f3 h4 f2 a4 b3 h5 d2 a5 d4 e3 b2 a6 d3 c5 Bd7 c6 Bc8 a7 Kf7 h6 Ba3 Kh5 g4 c7 g3 f6 Ke6 Kg6 Kd5 h7 g2 f7 Kc4 f8N Nd7 Nh3 g1N Ng5 Bc5 Nfe6 Ngf6 Nd4 Nh3 Be2 f1N Nc3 Bb6 Nc6 Nh2 Na4 Nhg4 Rh2 Rg8 h8R Nh7 Qh1 Rd8 Rf1 d1B Qg1 Bb3 Rf4+ Kb5 Qa1 Ndf8+ Kh5 Bd7 c8B Bf5 e6 Ne5 Bd7 Be4 Qa3 Rab8 a8R Kc4 Bd1 d2 Rh1 Nf2 Rhh4 Nh3 Be8 Rd5 Bf7 Nfd7 Rc8 Ndf8 Bg6 Rb5 Bf5 Ra5 Bfg4 Nd3 Bde2 d1R Bgf3 Ra1 Bd1 Ra2 Bfe2 Rc5 Nc3 Re5 Qa7 Rc5 Na4 Ra5 Rc7 Rd8 Rcc8 Rd6 Rf2 Rf5 Rff4 Nd7 Kg6 Ra5+ Kf7 Ndf8 Kg8 Rb5 Bg4 Ra5 Kh8 Ne5 Bge2+
2nk3b/r2rpp1p/2RnN3/N3N3/1bB1Rnrn/r4B1Q/P3N2P/R1K5 b - - 0 1 legal: proof: c4 b5 f4 bxc4 b4 a5 b5 g5 Ba3 gxf4 Bb4 axb4 d4 c5 e3 d5 Qb3 c3 Qa4 c4 Qd1 Qd6 e4 Qc5 dxc5 d4 Ke2 Be6 Ke1 Bd5 exd5 Bh6 Qd2 Bg7 Qd1 Bf8 g4 d3 c6 f3 b6 b3 b7 d2+ Kf2 b2 Ke3 c2 d6 c1N c7 c3 c8B f2 g5 c2 g6 Bg7 d7+ Kd8 Bb5 f1R Qe2 d1R Qd2 Ra7 Qd3 Nf6 Nd2 b1N Ne2 Rg1 Bc4 Ne8 Nf3 Nc6 b8N Nd6 Ne5 Rg4 Bb7 Nd2 Re1 Nf3 Ba8 Bf6 g7 Nh4 Qf5 Rf8 g8R Bh8 Rg6 Nd3 Qf3 Nf4 Qh3 Rd5 Rh6 Rda5 Kd2 c1B+ Kc2 Bb2 Re6 Bc3 Kc1 Ra3 Bb7 Kc7 d8N Bb4 Ba8 Kc8 Rg6 Rg8 Ne6 Rd8 Rh6 Rdd7 Rg6 Nd4 Nbc6 Nd4f5 Rh6 Rg8 Na5 Rg4 N6d4 Kd8 Bf3 Nc8 Rc6 Nfd6 Ne6+ Ke8 Ng1 Rg6 Re4 Rg4 Nd4 Kd8 Nge2 Rac7 Ng3 Rb7 Nge2 Ra7 Ne6+
1Q3q2/qPpnbb2/2bpk3/rR1bP3/B2R3b/1NpN3K/1R1N1B2/3Rb3 b - - 0 1 legal: proof: d4 b5 c4 bxc4 b4 e5 f4 exf4 a4 a5 e4 h5 g4 hxg4 e5 Qf6 d5 Na6 b5 Qd8 b6 Nc5 b7 Ne6 dxe6 Ra6 Qd2 Rb6 Qd1 Rb5 axb5 Qg5 Qd4 Qf6 Qd1 Qd8 Kf2 Ke7 Kg2 g5 b8N f5 h4 a4 b6 g3 b7 d6 h5 a3 h6 g4 h7 c3 Rh2 a2 Qc2 f3+ Kh1 f2 Kg2 f4 Bb2 f3+ Kh1 Nf6 Qb3 Bd7 Nh3 Bc6 Na6 Nd7 Bb5 f1B Nf4 Bc4 Ba3 B4d5 Rb2 g2+ Kh2 g3+ Kh3 g1B Nd2 f2 Nc5 g2 Rd1 f1B Ba4 a1Q Nfd3 Bf2 Qa2 Bh4 Ncb3 Be2 Bc5 g1B Bf2 Bh5 Qa3 Rg8 h8R Bf7 Qc5 Bh2 Qa7 B2g3 Qb8 Qa3 Rh7 Qc5 Rg7 Qa7 Rg4 Qc8 Rb4 Rg4 Rb5 Rc4 Bg1 Be1 Bf2 Rc5 Rb6 Ra5 Rb5 Ke8 e7 Nc5+ Kh2 Kd7 e8R Bfe7 Rh8 Ke6 Kh3 Nd7 Rg8 Qd8 Rg4 Qf8 Rd4
1q2r3/p1QB4/1R3k1P/B2b2r1/3N1p1N/1NBp3r/PbnRpK2/1r1N2n1 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h6 bxc5 Qg5 g4 Qe7 g5 Qd8 f4 hxg5 e4 f5 Qg4 fxe4 f5 Ne7 Qf3 Ng8 Qf4 gxf4 c4 Ke7 h4 b5 c6 d5 c5 g5 f6+ Ke6 f7 g4 c7 d4 h5 b4 c6 e3 h6 g3 Nh3 g2 Bb2 g1R Nd2 b3 Rd1 e2 Bc3 d3 Nf2 b2 Nb3 Nf6 Rd2 b1R+ Nd1 Rb2 Kf2 Bd7 c8Q Rg5 c7 Bg7 f8B Rb1 Bfb4 Nd5 Ba5 Nc6 Bh3+ Kf7 Qb8 Nd4 c8N Be6 Ne7 Nf3 Nc6 Nb4 Ncd4 Bd5 e6+ Kf6 e7 Ng1 Bd7 Re8 Qc7 Nc2 Rh5 Rg8 Rh1 Qb8 e8N+ Kf7 Nd6+ Kf6 N6f5 Rh5 Rh2 Rh3 Rg2 Bh8 Nh4 Rg5 Bf5 Qf8 Rg4 Re8 Bd7 Qb4 Rg3 Qb8 Re3 Bg7 Re5 Bf8 Re4 Ba3 Re7 Bb2 Re6+ Kf7 Rb6 Ke7 Be6+ Kf6 Bd7+
3b4/Nb2n1KR/NRP1pn2/6pP/1np5/q1B1QBqk/6p1/Rq1rB2R b - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 f5 Bg2 fxe4 Bf1 d5 c4 c5 b4 a5 Bb2 Ra7 Bc1 Rc7 Na3 dxc4 Nb1 c3 Be2 c4 Bf1 Rc5 bxc5 Qd5 Nh3 Qd4 Ng1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 Kh4 f4 g5 d4 e6 c6 a4 d5 a3 f5 g3 d6 c2 f6 a2 f7 g2 d7 e3 b6 e2 b7 e1Q+ Qe2 Bb4 f8R Qf2 Bb2 c1Q Bc3 Ba3 Rf7 Qd1 Nf3+ Kg4 h4 Bb2 h5 Qh4 Qe3 Qb6 d8B Qdb3 Nbd2 Ne7 Kf6 Nd7+ Kg7 Nf6 b8R Bb7 Be2 Qg3 Ne4 Qa3 Nc5 Qb5 Bb6 Rd8 Bba5 Rd1 Na6 Qf5 Be1 Qb1 Bad2 Be5 Bc3 Bc7 Nd4+ Qf3 Bed2 Bd8 Nb5 Kg3 Be1+ Kg4 Rf1 Kh3 Na7 Qg3 Bf3 Qf5 Rc1 a1N Rg1 Nc2 Ra1 Nb4 Rf1 Ba8 Rb6 Bb7 Rh1+ Qh2 Kf8 Qc2 Rh7 Qb1 Rf1 Qe5 Kg7 Qg3 Rh1+
3rNqkN/2pb1r2/1r2Q1RR/3K1P2/BqN2R1p/4pp2/P1nB3N/2n1n3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h3 axb4 h4 gxh4 e3 f5 Rh3 f4 Rh2 f3 Rh1 Bh6 Nc3 Qd7 Nb1 Bf4 exf4 Qf5 Qc2 Qe6+ Kd1 Qg6 Qb3 Qg3 Kc2 Qxf2 Qe3 Kf7 Qe1 Kf8 Qd1 Ke8 Kb3 Kf7 Kc4 h5 g4 e5 d4 b5+ Kc5 h3 g5 h2 d6 b3 d7 b4 d8R b2 f5 e4 Nd2 b1R Qe1 b3 Bb5 b2 Ba4 Nh6 Nc4 Nd7+ Kd5 Rh7 Bd2 Nc5 Nh3 Nb3 g6+ Kg7 Rd7+ Kg8 g7 Ng4 Qe2 Qg3 Nf2 Nc1 Rg1 Ne5 Ng4 h1Q Nh2 Qf4 Rg6 Ned3 Rdd6 h4 Rg4 Qg3 Rh6 Qhe1 Rf4 Bd7 Qe3 Rd8 Qe2 Kf7 g8N Qg7 Nf6 Qf8 Ne8 Kg8 Qe3 Ne5 Qb3 e3 Qb6 Rf7 Qe6 Nb3 Ng4 Nd3 Nh2 Rd1 Rc1 b1N Rc3 Nbc1 Rb3 Ne5 Rb6 Na3 Qd6 Qg3 Ba5 Nb3 Re4 Bb5 Ke6 Rb1 d5 Ra8 Rf4 Nd3 Qd7 Qgg7 Bd2 Qc3 Qc6 Nc2 d6 Rf6+ Kd5 Nbc1 d7 Nde1 d8N Qca3 Qd6 Bd7 Nf7 Rd8 Nh8 Rf7 Rc6 Rb6 Qe5 Qab4 Rcf6 Ra6 Qe6 Rb6 Rfg6+
4NBK1/3NP1R1/BppQ1b1N/1Rbn4/1rB5/kp1B4/6Pp/1nnqb1n1 b - - 0 1 illegal: No proof kernel
1B6/1BqnQ1B1/Rq3R2/n4Nr1/2qq1pk1/KNpp2r1/1pPB1P2/R4b2 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g3 h5 g4 hxg4 a3 bxa3 e3 d5 Nf3 d4 Ng1 d3 Qf3 Bc5 Qd1 Bd4 exd4 Qd7 Qe2 Qd6 Qd1 Qd8 Kd2 Kd7 Kc3 Ke6 Kb3 Kf5 h4 g5 h5 b5 e6 c5 e7 a2 e8R b4 d5 g3 h6 g4 d6 g2 h7 g3 d7 c4+ Kb2 b3 Re6 Nf6 Re4 Nc6 Na3 Ra5 Nb5 Rg8 h8B Qb6 d8B Nd7 Nh3 g1Q Ng5 g2 Qe1 Qh2 Nf3 g1Q Re6 Kg4 Nh4 f5 Rf6 Qhc7 Bd2 f4 Nd4 Rag5 Nhf5 Na5 Ka3 c3 Bg7 b2 Bg2 Bb7 Bf1 Bg2 Nb3 Qh2 Qe4 Qh8 Qe7 Bh3 Bg2 Qc4 Bc6 Bf1 Bd5 Qbc7 Bg2 Qh6 Ra6 Qhb6 Rh6 Qcd4 Rf6 Qcc4 Bb7 Qcc7 Rb1 Qdc4 Nc1 a1Q+ Na2 Re8 Qe4 Qcd4 Qe1 Qc8 Bc7 Re3 Bb8 Qcc7 Rd1 Rg3 Qe7 Qb1 Nc1 Qe4 Nb3 Qc1 Be1 Qce3 Bd2 Qec4 Rb1 Qed4 Ra1
qRR1R3/n3K3/1rb4N/B4b1p/P3p1p1/R3nnP1/2nq1Q1p/2BN2Bk b - - 0 1 illegal: No proof kernel
2r3QB/1R1n1P1N/2rP1pb1/1Nk5/K2br2B/1pp1b3/1Bn1p2b/RR4R1 b - - 0 1 illegal: No proof kernel
1n1N2R1/4q1Q1/p1q1k2q/3pBN2/1N3p2/B1r1PbP1/K1bNb1pR/4bB2 b - - 0 1 legal: proof: d4 e5 a4 c5 a5 cxd4 a6 bxa6 Qd3 a5 Qd1 a4 g4 f5 f4 exf4 Bg2 f3 Bh3 a6 Bg2 f4 Bf1 Ra7 Nd2 g5 Bh3 Nc6 Ra2 Nce7 Kf1 Ra8 Ke1 Nf5 gxf5 g4 Ra1 g3 Bf1 g2 Nb1 Rb8 Bd2 Rb6 Be3 Rg6 Bc1 Rg3 hxg3 Ke7 Rh6 Kf7 Rh1 Ke8 Kd2 f2 c4 Ke7 Kc2 h5 b4 d5 Kb2 h4 c5 d3 c6 d2 f6+ Ke6 b5 h3 c7 h2 f7 Bc5 b6 Bb7 c8N Ne7 Nd6 Bb4 Nf3 Nc6 Na3 Qe7 Rb1 Rc8 Nc2 a3+ Kb3 a2 e3 a1Q Nf5 Ba8 b7 Qc3+ Ka2 Qcc5 Qe1 d1B b8B Bc3 Qe2 Be1 Ba3 Qc3 Qd3 Rc7 Nd2 Bf3 Rc1 Rc8 Bc7 Nb8 Nb4 Bc6 Qd4 Ba4 Qg7 Qcc5 Rc3 Bc2 Be5 Qb6 Rc7 Qb7 Rd7 Rc3 Rd8 Qa8 Rg8 Qc6 Be2 f1B Bd3 B1e2 Bc4 Bed1 Bb5 Kd7 Bf1 Bde2 f8N+ Ke8 Rg1 h1Q Ne6+ Kd7 Nd8 Qh4 Rh1 Qhh6 Nb7 Ke6 Rh3 Rd3 Rh2 Rc3 Nd8+
1R3Bq1/npb3p1/2N3K1/rQ1p2R1/N4b1p/p4nB1/nrB1PP2/2k1N2N b - - 0 1 illegal: No proof kernel
1n1NB2N/k4P1p/2Q1b3/Pp2p2K/2prp1n1/4br1R/1R1r3R/N2b1NB1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 axb4 e4 fxe4 h4 g5 d4 gxh4 Bh6 c5 Bc1 c4 Qg4 Qc7 Qd1 Qc5 dxc5 Be6 Bh6 Bd7 Bc1 Bc8 Ke2 Kd8 a4 Kc7 g4 h3 f4 h2 f5 e6 g5 b3 a5 b2 d6+ Kc6 g6 Nf6 g7 Ng4 g8R Nh6 d7 Na6 d8N+ Kb5 c6 Bc5 c7 Bf2 f6 Bb6 f7 Nc5 Bh3 Ka6 Qd6 Ka7 Rg2 Na6 Nd2 b1R Ngf3 Bf2 Ra2 Bd4 Ne1 Bg7 Nf1 Re8 Qc6 Rb3 Be3+ Bd4 Nc2 Ng4 Rb2 Nb8 Bg1 Be3 Na1 Re7 Rg3 Rd7 Bg2 Ra3 Rh3 Rd4 Bf3 Nf2 Bg4 e5 Bd7 b5 Be8 Be6 Ke1 Na6 Ke2 Ng4 c8N+ Kb8 Ne7 Ka7 Ng6 Nb8 Ng3 Rad3 Kf1 Ra3 Kg2 Rad3 Nf1 Rd2+ Kg3 Rf2 Kh4 Rf3 Bf2 Rd2 Rg1 h1B Kh5 Bg2 Nh8 Rd4 Nd2 Bf1 Rgh1 Be2 Bg1 Bd1 Nb7 Nd7 R1h2 Rd8 Nf1 Nb8 Qc7 Rd2 Qc6 R8d4 Nd8
2B2rnK/BP1P1Q2/1qp4B/6R1/n4p1r/1Np1k2r/p2NpBRr/6qR b - - 0 1 legal: proof: c4 b5 g4 h5 d4 hxg4 a4 bxa4 e3 d5 Qe2 dxc4 Qd3 Rh3 Qd1 Rh8 d5 e5 Na3 e4 Nb1 Bc5 f3 Bd4 exd4 e3 Bd3 Bf5 Bf1 Be4 fxe4 Qd6 Qb3 Qe7 Qd1 Qd8 Ke2 Kd7 b4 Kd6 h4 a5 h5 f5 b5 g5 e5+ Kd7 h6 a3 d6 Ke6 h7 Kd5 b6 Ke4 b7 c3 d7 a2 d5 a4 e6 a3 d6 g3 e7 c6 e8R+ Kf4 Kd3 g4 Kd4 g2 Qb3 g3 Re5 Qe8 d8B Ra6 Nf3 g1Q Bh3 g2 Bh4 Ra8 Bf2 Qd8 Nbd2 e2 Qf7 Na6 Rh2 Qa5 Rd5 Re8 Nb3+ Re3 Re5 Nc5 Nfd2 Na4 Bg4 Rh3 Rb5 Kg5 Ke5 Qb6 Ke6 Kf4 Re5 Nh6 Kf6 Rf8 Kg7 Ng8 h8B Rh4 Rb1 a1R Rc5 a2 Rd5 Qd1 Bh3 g1R+ Rg2 Rh1 Ra5 Nh6 Kh7 Qg1 Bhd4 Rh2 Bg4 Qd8 Ba7 Ng8+ Kg7 Qb6 Bh3 Rg4+ Kh8 Rg3 Ne4+ Kf3 Bh6 f4 Bc8 Rgh3 d7 Rh4 Rag5 R4h3 Bg3 Ke3 Ned2 Rh4 Rb2 Rf1 Rb1 Rf3 Be1 Rfh3 Bg3 Qf2 Rh1 Qg1 Bf2+
2R5/N1p2qQ1/2P1pB1n/b3p1R1/1Pp1N1N1/1q1b1p2/rk2NKp1/1Bn3B1 b - - 0 1 legal: proof: f4 h5 a4 a5 b4 d6 g4 b6 gxh5 Bh3 c4 Bc8 c5 Ra7 c6 Rb7 Qc2 Qd7 e4 Qf5 e5 dxe5 Qc5 bxc5 Kd1 Rb5 axb5 Qxf4 Ra2 Qg3 Ra1 Qf2 d4 f5 h4 Kf7 d5 Kf6 h6 g5 h7 a4 b6 c4 b7 a3 h5 a2 d6 g4 d7 f4 d8B f3 h6 g3 Bd3 g2 Rh5 Qc2+ Ke1 Na6 b8N Nc5 Be3 Bf5 Rg5 Nb3 Nd2 Nc1 Nd7+ Ke6 Nb6 Qb3 Nc8 Kd5 Ne4 e6 Kf2 Bc5 Bb1 Bb6 Na7 Ba5 Ne2 Bg6 Bf6 Bf5 Nd6 Bd3 Bd4 Ne7 Be3 Ra8 h8N Ng8 h7 Nh6 Bd4 Nf5 Nhf7 Nh6 Nb7 Ke4 h8Q Kd5 Bb6 Ke4 Nc5+ Kd5 Nf4+ Kd4 Qg7 Kc3 Ne2+ Kb2 Ne4 Qd1 Nfd6 Qh1 Nf5 Qh5 Ne3 Qf7 Bc2 Nb3 Rh1 a1Q Bb1 Qa2 Ng4 Nc1 Rd1 Qb3 Be3 Bc2 Rd8 Bd3 Rc8 Bb6 Nb5 Ra2 Na7 Ba5 Bf4 Qg8 Bh2 Qf7 Bg1
2qkbqrq/K4Q2/3P1R1b/N2P2Nb/2B1qn2/N5nq/R1Rrn1r1/N3B3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 d4 f5 e4 h5 g4 c5 a4 f3 Ke3 f4+ Kd3 h3 d6 h2 d5 b3 e5 h4 g5 h3 a5 f2 a6 f3 a7 b4 Kc4 b2 Kb5 c4 e6 b3 e7 c3 g6 c2 g7 Bd7+ Kc5 Nf6 g8N Bh6 Nd2 b1B Be2 f1R Bb5 f2 Qf3 b2 Ra3 Nh5 Ba4 Rd1 Bc6 f1Q Ra2 Nf4 Bb5 Nc6 Nb3 Rd2 Bc4 Nd4 Na1 Nde2 Qf2 Ng3 Nf3 Qc8+ Kb6 Rh7 Ng5 Rg7 Rg1 h1Q Rg2 h2 Qf3 Bc6 Qh5+ Kd7 e8N Kd8 Nc7 Be8 Ne7 Rg6 Rf2 Qfh3 Qf3 Q1f1 Nb5 h1Q Na3 Rg8 Rh2 Rg2 Be3 c1N Bf2 Bbg6 Be1 Nce2 Qf2 Bh5 Nc6+ Kd7 Na5 b1Q+ Bb4 Qe4 Be1 Kd8 Qf3 Ne6 Qf7 Qf6 Rc2 N6f4 Ra2 Qg7 Rc2 Qf1 Rh1 Qff3 Rf1 Qfc3 Rf3 Qf8 Rf2 Qh8 Rf1 Qcd7 Rf2 Rc8 a8R Rb8+ Ka6 Qc8+ Ka7 Rb2 Rf3 Ng6 Rf6 Ngf4 Rc1 Rd2 Rc2 Bf3 Rb8 Bg4 Rbb2 Bh5 Ra2
3b2nR/5Br1/K3b1B1/1r1Bn1n1/R1n1NRr1/3kP1P1/1r1Q2nq/1Nbr2B1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 a4 Kd7 d4 Kc6 Kd2 Kd5 g3 Ke4 g6 c5 g7 f5 d5 b5 a5 h5 d6 b3 Kc3 f3 a6 f4 a7 b2 d7 h4 Rh2 b4+ Kd2 f2 Qb3 c3+ Kc2 f3 Be3 c4 Bc1 h3 Ra6 Rh7 Na3 b1R Rd6 Qh4 d8R Be6 Be3 Nc6 Bc5 Ne5 Bg2 f1N R6d7 Be7 Rc7 Nd2 Bh1 Rb2+ Kc1 c2 Rd3 Bd8 Rf2 h2 Qc3 b3 Rc8 Qh5 Bg2 h1N Nb1 Qh2 Nh3 Rh4 Qa5 Rg4 Rd4+ Ke3 Rf1 Nf2 Ng5 Nh3 Ne4 f2 Bh1 Rb8 a8B Ng5 Bd5 Rb5 Bg2 Rb7 Ra8 Rb5 Rh1 f1N Ra7 Nh6 g8B Rb7 Bh3 Rg7 Bf7 Ng8 Qb4 Ndf3 Ra5 Nh4 Ra4 Ng2 Qe1 Nd2 Ba7 Rf4 Bf5 Rg4 B5g6 Ra2 Rb4 Ra5 Kb2 c1B+ Kc3 b2 Ra4 Rb5 Na3 b1R Bb6 R1b2 Nb1 Qg1 Rh6 Qh2 Rh8 Nb3 Nd6 Na5 Qd2+ Kf2 Re4+ Kf1 Kd4 c3 Bc5 c2 Rf4+ Nef3+ Kc3 Nc4 Bf2 Nfe5 e3 Nh7 Ne4 Ng5 Qd4 Ke2 Bg1 Na3 Qb4 Nac4 Kd4 Bd2 Qa5 c1R Qc3 Rd1 Qb4 Rb8 Kc5 Bc1 Qa5 R8b3 Qb4 Kd3 Kb5 Ra3 Ka6 Rab3 Qa5 Rb5 Qd2+
5b2/n1BN1r1N/2bR1nR1/1q1bQbrN/BNn2r2/b1P1B1q1/k5P1/1b1K4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 e4 Ke7 b4 Kd6 e5+ Kd5 e6 h5 c3 a5 e7 f5 e8N h3 b6 f3 b7 h4 b5 h2 b6 a4 Bb5 h3 Kd2 f2 Qc2 f1N+ Kd1 f4 Qf2 a3 Be2 d3 Nf6+ Kc4 Ne8 Kb3 Nd6 a2 Qg3 f3 Qe1 f2 Qd2 Qg5 Nf7 d5 Bf3 d4 Ba3 Rh5 Nd6 Bf5 Be2 Nc6 b8N Nf6 b7 Na7 Nd7 Ne3+ Kc1 f1B b8B Qg3 Bg4 Nc4 Ne8 Rg5 Qe3 d2+ Kd1 B1d3 Qf4 Bde4 Nc7 Bd5 Ke2 d1B+ Kf1 d3 Nf3 d2 Bc5 Kb2 Ne8 Bdc2 Bc7 d1B Na3 Bb1 Ng7 Ba4 Ke2 Bac6 Rd1 h1R Qe5 h2 Be3 Rf1 Nh5 h1Q Nc2 Re8 Rd2 Re7 Nb4+ Kb3 Bh3 Rf7 Bg4 Qhh4 Bh3 Rf2+ Kd1 Qd4 Rd3 Qc5 Rd2 Qb5 Rd4 Rg6 Ng5 Rf4 Nh7 Rg5 Bg4 Ka3 Be2 Bbe4 Rb1 a1B Bd3 Bb2 Bc2 Bd3 Ba4 Bc1 Ra1+ Kb2 Ra3 Bb1 Rb3+ Ka1 Rd2 Ba3 Rbb2 Bde4 Rd6 Bed5 Rd2 Ne8 Rg6 Nf6 Nc2+ Ka2 Rd3 Bde4 Rd6 Bed5 Nb4+
q1Q1r3/n2rb2n/q6N/3BK2N/rR6/P1rq1Nn1/3NPk1r/1bB1Rr1B b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 b5 d6 f5+ Ke5 h5 d3 b3 d7 b4 a3 f3 g5 f2 g6 h3 g7 b2 Qd2 h2 Qe1 f4 Qd1 f3 Kf5 Kd4 Kf4 c5 Qe1 b3 Qd1 c4 Kf5 h4 Kf4 h3 Qe1 c3 Ra2 c2 Qa5 Be7 Bg2 f1N Nd2 b1Q Nc4 b2 Qb4 f2 Qa5 Nf6 g8B Nc6 Ne3 Na7 Qe1 Qa5 d8N Ng3 B8d5 Nh7 Nc4 Bf5 Nd2 Qa6 Nf7 Rhe8 Nh6 f1R+ Bgf3 Rad8 Ra1 Rd7 Qd1 Qa2 Rb1 Q2c4 Qe1 Qcc8 Qd1 Qa8 Qe1 Kc3 d4 Bg6 Ke5 Bd3 Ra1 b1Q Qf2 Qbb5 Rb1 Bg6 Rb4 Qd3 Bg2 Bf5 Ngf3 Be4 Rg1 h1R Qe3 h2 Qf4 Bg6 Qf8 Be4 Nh4 Rf4 Re1 Rhf1 Nhf3 h1R Qf5 Rh2 Bh1 Rc7 Qc8 Bg6 Bc6 Rd7 d5 Rg4 d6 Rgh4 Nc4 Rf4 Bd5 Rd4 Be3 c1R Ncd2+ Rc4 Nf5 Kc2 Ng7 Rc3 Nh5 Rb1 Rb7 Rb4 Rb8 Ra4 Rb4 Rb7 d7 Be4 d8N Rd7 Ra1 Bg6 Nf7 Be4 Nb1 Kd1 Bc1 Bg6 Nbd2 Bf5 N3g5 Ke1 Ngf3+ Kf2 Nh6 Qdc4 Bb2 Be4 Rc1 Bb1 Re1 Qd3 Bc1
b2Kb1NR/1b2B2k/nPRbqP2/8/4rr2/1B3b1r/nqN4b/2NB1NqQ b - - 0 1 illegal: No possible last move, all moves rejected
B1r1RNr1/1r3rRq/P7/rn3Qn1/1N1B1r1q/qk1P4/n2RNR1b/K2b4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Kd7 g4 Kd6 a4 Kc5 g5 b5 e5 h5 e6 f5 e7 h3 e8R b3 g6 Kb4 d6 c5 d7 f3 d3 h4 Kd2 h2 g7 f4 a5 c4 a6 f2 Nh3 f3 Qe2 c3+ Kd1 b2 Kc2 Qa5 d8N Bg4 Bd2 Bd6 Nb7 Nf6 g8R Ne4 Qe1 Nc6 Qc1 Rc8 Qd1 Na7 Rd8 Ng5 Ng1 h3 Ra2 Qa3 Rge8 Rg8 Bg2 f1R Re6 f2 Bf4 Bc7 Nd2 b1R Rde8 Ra1 Rb6 Ka4 Qc1 b4 Rb2 Nb5 Nb1 Be2 Qe1 b3+ Kc1 c2 Rf6 Be5 Be3 Bd1 Ne2 Bc7 Rg1 h1Q Rff8 h2 Nd8 Bf4 Bd5 Qe4 Bc6 h1Q Ne6 Qhh7 Ba8 Bh2 Bd4 Qeh4 Rg3 Ra2 Nbc3+ Kb4 Nd5+ Ka4 Kd2 c1N Nb4 Ra1 Rc2 b2 Rf4 b1R Nf8 Na2 Rg1 Nh3 Rg7 Kb3 Rf5 Ng5 Rf3 Rg1 Qf1 Rg4 Qh3 f1R Rf2 Rf4 Qd7 Rf7 Qf5 Ka4 Rg2 Rf4 Rf2 Rc1 Rb2 R1c7 Rc2 Rc1 Rb2 R1c5 Rc2 Rb7 Rb2 Nac3 Kc1 Na2+ Kb1 Rd5 Rd2 Kb3 Re6 Nd6 Re7 Ra5 Ka1 Nb5 Re8
1K2bR2/2n1R1NP/BB5N/k1r3b1/1bBb4/1b1BP2r/qrQ4R/q1n2b1n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 d5 Kd3 Kd7 c4 Kc6 a4 Kb6 h4 g5 e6 f5 e7 b3 e8R f4 c5+ Ka5 c6 b5 c7 b4 h5 f3 h6 f2 Bd2 b2 Qb3 g3 Be1 g2 Qc3 g4 Na3 b1N Qd2 g3 Nh3 g1B Nf4 g2 Re3 Ne7 Re6 Nf5 Ra2 Nc3 Nb5 b3 Re3 b2 Qc1 b1R Rc2 Bd7 c8B Ng3 Nh5 Be8 Rh2 Nh1 Nd6 Na6 Ng7 Nc7 Nf7 Rb2 Ba6 Bb4 Re7 Rc8 Rd2 Qd6 Qc2 Na2 Rd1 Qe6 h7 Rg8 Bd2 Rf8 Nh6 Rf3+ Be3 Qg8 Rh4 Rh3 Rd2 Bh2 Rf4 g1B Rf8 Bf4 Bc4 Ne6 Ba6 Rc5 Bc4 Nc7 Ba6 Kb6 Bc4 Bg5 a5+ Kb7 a6+ Kb6 a7 Ka5 a8B Qe6 Bg2 f1B Bb7 Qf7 Be4 Qg8 Qc3 Bf2 Rc2 Qe6 Bba6 Nc1+ Kd2 d3 Bg6 Bf6 Bd4 B2h4 e3 Bhg5 Be4 Rb5 Ba7 d4 Ke1 Rf5 Rh2 d2+ Kd1 Rc5 Bed3 Rb3 Kc2 d1B+ Kd2 Rb2+ Bc2 Ne2 Kd3 Qf7 Ke4 d3 Qb3 d2 B2d3 Nc1 Qc3 Bb3 Qc2 Rc6 Kf5 d1Q Ke4 Qe1 Kf5 Bd4+ Ke4 Ne6 Kd5 Rc5+ Kd6 Nc7 Re2 Qg8 Rh2 Bh5 Kd7 Be8+ Kc8 Qf7 Qg2 Qff2 Kb8 Qc2 Qe4 Qb1 Qc6 Qe2 Qg2 Qa1 Qf2 Qc2 Qg2 Qcb1 Qc2 Qba2 Bb6+
bq3N1q/1qPR2qB/2N5/qN3r2/b2B1B1R/b7/KnN3rP/n1Qkqr2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Ke6 c4 Ke5 Kc2 Ke4 Kb2 a5 e3 g5 b6 d5 b7 f5 b5 g3 b6 a4 c5 a3+ Kb3 a2 c6 f3 c7 d3 Qd2 f4 Qb2 g4 Ne2 d2 Qf6 Kd3 e4 d1Q+ Kb2 g2 e5 g1Q e6 f2 e7 f3 e8N g3 Bd2 d4 Nbc3 g2 Qe7 Nh6 Ne4 Na6 b8B Bb7 Bg5 Rg8 N8f6 Nb4 Nd2 Nf7 Nb1 Qd2+ Kb3 Nc2 Ne8 Ne5 Be3 Qa5 Qd6 Nc4 Bf4 Nb2 Qe5 Ba3 Ba7 Qb8 Bg3 Bc6 Nbc3 Kd2 b7 d3 Rb1 a1Q Nb5 Rf8 Ng7 Rf5 Bd4 Ra7 Nc1 Kd1 Bf4 d2 Bd3 f1Q Qe3 f2 Ne6 Qe1 Nf8 f1R Be4 Qgf2 Bd3 g1Q Be4 Rd5 Bh7 Qg7 Rg1 Re5 Rg4 Qg2 Rh4 Bf3 Bg3 Rf5 Bf4 Qc8 b8N Ba8 Nc6 Qb8 Nb4 Qgb7 Nc6 Nd3 Rb2 Ra6 Ra2 Nb2 Nd3 Rb6 Ndb4 Qh8 Nd8 Rg6 Ndc6 Rg2 Nd5 Qc1 Ndb4 Qg3 Ra1 Qgg7 Rb1 Na1+ Ka2 Na4 Rb3 Qc3 Nc2 Nb2 Qe8 Qcg3 Re3 Qf2 Re7 Qe1 Rd7 Kc1 Ne3 d1B Qe5 Ba4 Nc2+ Kd1 Qe4 Qeg3 Qe3 Qge1 Qc1+
3k2K1/1Rn1qn1r/N1Pn1Nbr/qq4N1/8/2BPNBB1/qqR3Q1/2bn3n b - - 0 1 illegal: No proof kernel
1b2N2B/nrrPNqn1/P7/B1RBrbK1/3Qb3/2r3b1/1k2R1Rr/qB3b2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 g4 Kc5 a4 Kd4 e4 f5 e5 b5 g5 c5 d6 h5 d7 c4 a5 c3 e6 c2 g6 h3 g7 h4 a6 h2 d3 h3 e7 b3 e8R b2 Qe2 b4 Qe6 b3 Ra5 Nc6 Ra2 Nf6 g8B Qa5 d8B Bd6 Ra3 Bb8 Nc3 b1R Bh7 b2 Qe7 Nh5 Bc7 Ng7 Na4 Na7 Bg6 Rh5 Nc3 Qa4 Rb3 Qa1 Rb5 Bd7 Bd2 Rc1 Rc5 b1R Qh4 Rb7 Ba5 Rc7 Re3 Rb1 Qf2 c1B Ne4 Rbb7 Bg2 Bb2 Bc1 Bc3 Ba3 Be1 Nf6 Rg5 Qh4 Bg3 Ne8 Nh5 Ng7 Rc8 Bd8 Bc7 Rb5 Kc3 d4+ Kc2 Bb4 Kb2 d5 Bd6 Qg4 Rc3 Bf6 Rc8 Ne2 Bb8 d6 Rcc7 Rg1 h1R Rc5 h2 Ne8 Be6 Bh8 Ng7 Nd4 Bc8 Ke2 f3+ Kd2 f4 Ba5 f2 Bc2 f1Q Bd5 f3 Nc6 f2 Ne7 Rf5 Qd4 Re5 Rg2 Bg4 d7 Qc4 Re2 f1B Bde4 Qf7 Bd5 Bf5 Qd3 Be4 Ke3 Bf5+ Kf3 Bh7+ Kg4 Bf5+ Kg5 Rg1 Qd4 h1B Rgf2 Bhe4 Rh2 Rh1 Rhg2 Rh2 Bb1+
1nN1r3/4B3/Q1b4b/n2kB1r1/1B2nN1q/4R1P1/Kb1P1RBq/Rr1b2rr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Ke7 b4 Ke6 b6 a5 b7 h5 e5 c5 g3 f5 b5 h3 b6 f3 Bg2 c3 Ra3 f4 Ra4 h2 Bb2 c4 Qe2 c2 Ra3 c1Q+ Qd1 f2+ Ke2 f1R Bc3 f3+ Ke3 a4 Qb3 f2 Ba5 h4 Qd1 h3 Qf3 c3 Bb4 c2 Nc3 Nf6 Ra2 a3 Qe2 Ne4 Qd3 Ra5 Ra1 a2 Nd5 Qh4 Kd4 Bh6 Kc4 Re8 Ne2 Rg1 Kb3 f1R Qa6 Bd7 Ne7 Bc6 Nc8 Kd5 e6 Rb5 Rb1 a1B e7 Bb2 Ka2 Qd1 Ra1 c1N+ Kb1 Nb3+ Ka2 Na5 Nf4+ Ke5 Qa7 Qdh5 Qa6 Rf3 Rf1 Rb3 Rf2 Kd4 Ng6 Rg5 Nf4 Rc1 Re1 h1R Rd1 h2 Re1 Rh8 e8R Rg1 Re6 h1B Ref1 Re1 Be7 Re2 Ra1 Qh2 Bb4 Q5h4 Re7 Ree1 Re5 Re8 Re6 Nd7 b8B Rd1 Bc7 Nb8 b7 Rb1 Bcd6 Rbd1 Bf1 Bf3 Bg2 Rde1 Be7 Bd1 Rd6+ Ke5 Rd3 Rh1 Re3 Reg1 Qb6 Ba3 Qa6 Rb1 Nd6 Bb2 Nc8 Nd7 b8B+ Kd4 Nh3 Kd5 Be5 Nb8 Nf4+
B3N1n1/b1Bq1N2/3R2N1/3b3r/N1rqq2n/1K1P1kRP/1Br2q1b/Q3q1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 Kd6 e5+ Kd5 e6 Ke4 h3 f5 b6 c5 e7 a5 e8N g5 b5 f3 b7 c3 b6 c2 Na3 f4 Ra2 c4 Rb2 g3 Nb1 a4 Ra2 g2 Ng7 a3 Ne6 f2+ Ke2 c3 Rb2 a2 Nc7 a1Q Ne6 g4 Na3 g3 Rb1 Bd6 Rb5 Nd7 b8B Nf8 b7 Ng6 Rc5 Ra4 Rb5 Nh4 Rb3 Qd7 Ng7 Rc4 Nb1 Rh5 Nf3 g1B Bc7 g2 b8N Bb7 Bb2 c1R Ne5 c2 Nf7 Bd5 Nc6 Qa7 Nce5 Qd4 Rf3 Bc5 Rg3 Bh2 Qe1 g1B Ng6 Ba7 Ne8 Rd1 Nh6 c1Q Nf7 Qc2 Bg2+ Nf3 Bb8 Rc1 Bc7 Qca4 Qf1 R1c2 Kd1 Qac6 d3+ Ke3 Nc3 Qa4 Rg4 Nh4 Rg3+ f3 Qe1+ Re2+ Kc1 f1Q Kb1 Qb4 Ka2 Qf2 Qa1 Rc2 Na4 Qbe7 Kb3 Qee4 Ngh8 Qe1 Rg6 f2 Rd6 f1Q Ng6 Qff2 Bf3 Bg3 Rh2 Be5 Rg2 Beh2 Rg3 Qee5 Bb6 Be6 Be4+ Ke2 Ba8 Qee4 Rg4 Bd5 Bc7 Kf3 Rg3+
1bB3n1/bq2q1b1/1kBBn3/5q2/KQ2b3/1NPrRRP1/B3n2N/1rbq2N1 b - - 0 1 illegal: No proof kernel
nB4b1/K1n1nq1B/1Bbb4/4q1n1/1krNRN2/PN1BP1Q1/1r2r1R1/3r2r1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 d4 Kd6 g4 c5 g5 b5 g6 f5 e3 h5 g7 b3 Qf3 b2 Bh3 c4 Ne2 c3 Bf1 c2 Qg3 b4 Na3 b1R Qh2 b3 Bg2 h3 Be4 b2 Rd1 h4 Qg2 f3 Qg5 f4 Qg1 h2 Bd2 c1R Qg2 h1R Nc3 h3 Re1 h2 Rf1 Ne7 g8B Nd7 Na4 Nb6 Bc3 Rg1 Bgh7 h1B Bd3 Qc7 Nc2 Be6 Qg3 Rd8 Nc5 Na8 Nb3 Bg8 Ba5 Rc8 Bb6 Rd1 Ba7 Qa5 Bb6 Bg2 Ba7 Rc4 Bb8+ Kd7 d6 Kc6 d7 Qe5 d8N+ Kb5 d5 Bh1 Ncd4+ Kb4 d6 Bg2 Bhe4 Rh2 d7 Rd2+ Be2 Rbd1 Bh7 b1N N8e6 Rb2 d8B Na3 Rc1 Nb5 Rc2 Nbc7 Bed3 Nc8 Ng7 Bd6 Nh5 Ne7 Re2 Rhh1 Rc2 Rd2+ Ke1 Re2+ Kd1 f2 Kc1 f3 Nf4 Ncd5 Bb6 Ndc7 Rd1 f1N Rd2 f2 Rc3 Rb1+ Kc2 Rd1 Kb2 Nh2 Kc2 Rc6 Rc5 f1Q Rc4+ Ka3 Kc3 Nf3 Rb2 Ng5 Rd2 Rc5 Rc2 Bc6 Rb2 Ra5 Rb4 Rd5 Kc4 Rhh2 Rc2 Ree1 Rg2 Re2 Nh3 Qf7 Nf4 Kb2 Ra4 Rc5+ Kb4 Bb5 Ka5 Kc3 Rb4 Rc4 Ra4 Ncd5 Rb4 Bc6 Ka6 Ndc7+ Ka7 Rb2 Rb5 Re2 Rc5 Kb4 Ra5 Qee6 Re5 Rb2 Re4 Qe5 Rd2 Re2 Rc2 Ree1 Rg2 Ree2 a3+
1NkqQ2r/3rBN1B/5bKb/n5N1/qRPq1qr1/1P6/4BB1r/n2b2Rq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 e4 Kd7 c4 h5 g4 a5 b3 h3 g5 f3 e5 h4 b6 f2 g6 a4 g7 f4 b7 f3 Qd2 a3 Qa2 h2 Qe2 a2 Qe1 h3 Nd2 Nh6 g8B Nc6 b8B Ng4 Rb1 a1B Qe4 Bh6 Bg2 f1Q+ Qe2 f2 Rb2 Ne3 Ra2 Na5 Ba7 Nc2 e6+ Kc7 e7 Bg4 e8N+ Kc8 Ngf3 Qd1 Re1 h1R Bh7 f1Q Nh4 h2 Nf5 Qf4 Ra4 Bb2 Rf1 Na1 Rb4 Qe1 Qe3 Bd1 Nf3 Rg1 Nf6 h1Q Bh3 Rg4 Qe8 Qe6 Bb6 Qc6 Rg1 Qa4 Bf1 Ra7 Ng5 Rd7 Be3 Bc3 Be2 Bb2 Kd2 d3 Bc5 d4 Be7 Bc3+ Kc1 d2+ Kb1 d3 Bf2 Rd5 Nd7 Bf6 Nb8 Rd4 Kb2 Rg2 Kc3 Rh2 Qf8 Qff3 Qe8 Rg4+ Bd4 Qf4 Nd6+ Kc7 Ndf7 Kc8 Be4 Bc2 Bg6 d1Q Bh7 d2 Nf3 Qf1 N3g5 Bd1 Kd3 Q1f2 Bf1 Bf3 Rb5 Qd6 Rb4 Qfg3 Ke3 d1R Ba7 Rd5 Bd4 Qge5+ Kd3 Bd1 Be2 Qf5+ Ke3 Qf1 Kd3 Qc5 Ke3 Rd7 Kd3 Rgg2 Ke4 Qf2 Be3 Qg3 Bf2 Qd4+ Kf5 Qgf4+ Kg6 Rg3 Ne5 Rg4 Nf7
2nrb1rr/1B1n2QB/6q1/3NrP2/R1N1B1qR/qkb1P3/qN2n2K/2q1B3 b - - 0 1 illegal: No proof kernel
2NbNb2/1rb2r1R/1q1NKBnP/n1B4k/b7/r1qQ2R1/1P3r1b/B1n4B b - - 0 1 illegal: Other
qb2rr1B/R1B5/1Br1PrR1/4Nbnq/1b1K2Q1/2r2Pq1/3nBN2/4R1qk b - - 0 1 illegal: No possible last move, all moves rejected
3KBQ2/n3Rq2/N2PqnB1/1k4Pq/3nRB1B/b3n2b/1r4Rq/1q1Nr2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 e4 c5 g4 h3 b4 a4 d4 a3 b6 Kc6 g5 f3 d5+ Kb5 b7 f4 Qd4 h2 Qf2 a2 Qg3 h4 Be3 h3 Be2 f2 Qf3 f1Q Bd3 Qb6 Ne2 Nf6 Rg1 h1Q Rg2 h2 Ng3 Bh3 Bf2 Ra4 Bc2 c3 Bd3+ c4 Bc2 Na6 b8R Nc7 Rb7 Ra3 Bd3 c2 Be1 c1N Nc3+ Ka6 Rb1 a1R Nd1 Nb5 Rd7 c3 Rbb2 Qc6 Rbe2 R3a2 Bb1 Na7 b5+ Ka5 b6 Kb5 b7 c2 b8B Nb3 Bf2 c1Q Bd6 Ng4+ Ke6 Rb2 e5 Nf6+ Bf5 Q6c4 Ne4 Qb1 Bh4 Nd4+ Kf7 Qhg1 e6 h1Q e7 Qgh2 e8B Rh5 Bb8 Ba3 Bg6 Qb3 Qf2 f3 Nc5 Qe1 Qf1 f2 Na6 Qc4 Ree7 Qe6+ Kf8 Rh7 Bf4 Rh6 d6 Rh7 Qe2 f1N Qf3 Ne3 Qf2 Qed5 Re4 Qe6 Rg3 Qf3 Rg2 Qh5 Qf1 Qf5 Qf3 Rh8+ Ke7 Qf7+ Kd8 Q5e6 Qf1+ Qd3 Nf2 Re1 Nd1 Rh7 Be5 Rh8 Qf5 Qb1 Bf4+ Nfd5 Qf6 Rh7 Qg7 Nf6 Qf8 Qh6 Rc2 Bg2 Rd2 Qg1 Bhg3 Qhh3 Rf2 Qhg4 Rf3 Rh1 Rf2 Qh2 Bh4 Bh3 Rg2 Qh5 Re7+
2qRBR2/1Q2n1P1/NB4nN/1Kb4b/rnN1N2b/4P3/2q1r2B/bn1bkr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Ke7 Kd2 Kd6 Kc3 Kd5 b4 Ke4 g4 c5 g5 a5 b6 f5 d5 h5 b7 f3 b5 f4 b6 a4 g6 a3 d6 h3 g7 h4 d7 f2 Qe1 a2 Bd2 h2 Be3 f3 Bg5 h3 Bd2 Nc6 b8B Ne5 b7 Ng6 Bh6 Ra4 Bg2 f1N Bg5 Nd2 Bf1 f2 Bf6 Ke3 Kc2 c3 Bbe5 c4 Kc1 c2 Kb2 c1B+ Kc2 c3 b8N Bb7 Bg3 Bf3 Na6 Qc8 Bd8 Bc5 Bgc7 N8e7 Na3 Rh7 Rb1 a1B Qd1 Bg4 Nf3 Bcb2 Rg1 h1N Ng5 h2 Ne4 Rh4 Bh3 Bh5 Rf1 Rg4 Qe1 Rg2 Rd1 Bc1 Be6 Bcb2 Bf7 Nb1 Kb3 c2 Qa5 c1Q Be8 Bf6 Qb5 Bh4 Qb7 Qd2 Bb8 Qc1 Bb6 Qd2 Rfe1 f1B d8N Nf2 Nf7 h1R Nh6 Nd3 Bh2 Nb4 Kc4 Qc2+ Kb5 Rhg1 Nf6 Kf2 Nc4 Rh1 e3 Bfe2 Rd5 Bd1 Rf1+ Ke2 Rff5 Rf1 Rd8 Ke1 Ne4 Re2 Rf8
1Nq1nQr1/3nPb1R/3b2nN/K3BB2/P2n3B/NR2bn2/N3r3/2qkr1r1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 Kd2 Kd6 a4 b5 g4 f5 e4 h5 g5 c5 g6 c4 g7 f3 Bg2 b3 Kc3 f4 Kb4 c3 Ra3 h3 Rh2 f2 Qe2 f1N Nf3 h4 Ra2 b2 Ne1 c2 Qd2 f3 Rh1 f2 Ra1 h2 Ra3 h3 Bf3 Ne3 Ng2 f1N Ra2 Ng3 Rd1 h1R Ra1 h2 Qe1 Nh5 Rd3 Nhf6 Qf2 Nf5 Ra2 Nge7 g8N Be6 Bg4 Re1 Rb3 h1Q Bh3 Ne8 Nc3 b1R Ne3 Bf7 Bb2 c1B Nh6 Ng6 Nc2 Rg8 Na3 Qc8 Qf3 Be3 e5+ Kc7+ d6+ Kb6 e6 Nd7 d5 Nd4 Ra1 Re2 Ra2 Qc1 Bf5 Re1 Ba1 Rb2 Qf2 Rbe2 Rd2 Ra7 Na2 Rc7 Rd1 Rcc2 Qf1 Rg2 Rd2 Rg1 Rh2 Rce2 Rh5 Nc5 d7 Bd6 d8N Ka6 Nc6 Kb6 Nc2 Nd7+ Kc3 Kc5 Nb8 Bg3 d6 b4+ Kd3 Kd5 Na3 Ke5 Qf3 Bh2 Qa8 Kf4 Bc3 Kg3 Rh3+ Kf2 Ba1 Ndf8 d7 Bd6 d8B Nd7 Bg5 Kf1 e7 Kf2 Bh4+ Kf1 Rc3 b3 Rh1 b2 Rb3 b1N Bb2 Nc2 Be5 Nd2 Rh2 Nf3 Rh3 Nc5+ Kc3 Ncd4+ Kb4 Nd7+ Ka5 Rf2 Qa7 Ke2 Qb6 Kd1 Qd8 Rfe2 Rh2 Ng7 Qf8 Ne8 Rg2 Nh8 Rg7 Ng6 Rh7
1r3BB1/k1P1R3/N1B1r3/1N3b1q/q1Nn1n2/1b4K1/qPqnQ1n1/bR3B1q b - - 0 1 illegal: No proof kernel
r1bb1N2/1B1bnK2/1q2rb1N/nQn1PN1P/n3bR2/3k4/1B3Rb1/2nB2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 Ke5 c4 f5 b4 d5 b6 g5 c5 a5 h5 g3+ Kf3 g4+ Kg2 a4 b5 d3 b7 Kd4 b6 a3 e5 d2 c6 a2 c7 Be7 Bd3 f3+ Kf1 f2 Kg2 f4 Qe2 d1B Qc2 Bf3+ Kf1 Nc6 b8B Na5 b7 Be4 Ke2 f1B+ Kd2 f3 Ba3 g2 Nh3 g1N Be2 f2 Qb3 g3 Bd1 g2 Nc3 Bb5 Bb2 f1B Nf2 Bbd7 Ng4 Bf6 Nh6 Ne7 Qb5 Re8 Rh4 Ne2 Rf4 g1B Rc1 a1N Rc2 Ra6 Ba7+ Rb6 b8N Bg2 Na6 Nc1 Nc5 Re6 Bb6 Bf2 Ba7 B2h4 Bb6 Ba6 c8B Rg8 Ba7 Qb6 Bb7 Rh8 Rf5 Ra8 Rf4 Nd3 Ke2 N1b3 Rd2 Bhg5 Rc2 Ndc1+ Kf2 Nc8 Kg3 Ne7 Kg4 Ke3 Rd2 d4 Rdf2 d3 Ne2 d2 Ng3 Bh4 Be2 d1N Ngf5+ Kd2 Bf3+ Ke1 Be2 Nc3 Bf3 Na4 Bd1 Rc6 Ne6 Nbc5 Nf8 Re6 Bc6 Bac8 Bb7 Nc5b3 R2f3 Kd2 Rf1 Qa6 Bg1 Nbc5 R1f3 Nd5 Rf1 Bd8 R1f3 Ne7 Rf1 Bf6 R1f3 Bh8 Kg5 Qb6 Rf1 Nc4 R1f2+ Kd3 Nf7 Bf6+ Kh6 Bg5+ Kg7 Bh4 N7h6 Bg5 Kf7 Bf6 Qc6 Na5 Qb5+
3b2B1/1bBk1n2/1r2n2R/5br1/4B1n1/PN1P1NQb/K3Bnr1/2q1qqRN b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 h5 g4 c5 a3 b5 d6 f5 g5 h3 g6 c4 g7 h4 e5 h2 e6 f3 e7 h3 Bg2 c3 Ne2 f4 Ng1 c2 Qe2 f2+ Kf1 b3 Qe4 b2 Ke2 f1B+ Ke1 f3 Ne2 b4 Rg1 h1N Qc4 h2 Qc5 b3 Qc7 Ra5 Qc4 Rg5 Qb4 Qa5 Qe4 Kd7 Ng3 Nc6 Qg6 Nh6 g8B Nf2 Nh1 Bb7 Ra2 Nd4 e8B+ Kd8 d7 Be7 Qd3 Nfg4 Bh5 Ne6 Qd6 Nf7 Qg3 Bf6 Ra1 Ke7 d8N Kd7 Nc6 Bd8 Nd4 Rh7 Ra2 Rhg7 Ra1 Bd3 Ra2 Bf5 Ra1 Qb5 d3 f2+ Kd2 f1B Kc3 Qa5+ Kc4 Qe1 Nd2 b1Q Be4 b2 Kb3 Bh3 N2f3 Qf1 Bd2 Qbe1 Ba5 c1Q Ka2 b1R Bc7 Rb6 Nb3 Qf4 Nf2 h1N Rc1 Qfe3 Rc6 Q3c1 Nh2 Ne3 Be2 Ng4 Nf3 Nf4 Nd1 Nhf2 Rh6 Ne6 Bd5 Ne4 Nf2 R7g6 Nh1 Nef2 Be4 Nh2 Rh4 Rg4 Rh8 R6g5 Qe5 Rg2 Rh6 Nhg4 Qg3
1rR3k1/bn1Bqn2/2rb1B2/1r1RR3/bP1b2n1/4r1q1/1NN2P2/Q1NK1Rq1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c4 Kf7 b4 e5 g4 h5 g5 a5 c5 d5 b6 d3 b7 a4 c6 d2+ Ke2 e3 c7 h3 Ra2 h4 Rc2 a3 Qe1 d1N Qc3 d4 Rb2 e4 Ke1 d3 Nf3 d2+ Ke2 a2 Na3 a1B Bg2 h2 Bf1 h3 Ra2 Qe7 Qb2 Rh5 Qe5 Na6 b8N Bd4 Bg2 Ba7 Qc3 Nc5 Ra1 Nh6 g6+ Kg8 g7 Nf7 Ng1 Bd7 c8R Ba4 Rd8 Nb7 Nc4 Rb5 Na6 Rc8 Nf3 Rb8 Rf1 h1R Rg1 h2 Re1 Rf1 Rd4 h1Q Rb1 Qhh4 Bh3 Qg3 Qa1 Rh1 Bg4 Rh6 Nb2 Rc6 Rd7 Qee5 Nc5 Bd6 Nd4 Qe7 Ncd3 Qgh4 Kf1 e2+ Kg1 e3 Nc2 Qhg5 Kg2 Qge5 Kf3 Qc3 Rf1 e1B Ke2 Qce5 Nc4 Qh2 Bb2 Qg3 Nc1 Qe8 Bf6 Qe7 Kd3 e2+ Bf3 Rbc5 Nb2 Ne3 Bg4 Rb5 Bh3 Be5 Rd5 Bd6 Bd7 Ng4+ Ne3 Qh4 Re5 Qg5 Nc2 d1Q+ Ke4 Qh4 Kf3 Bc3 Rd5 Bcd4 Re5 Kh7 g8R Qh2 Rc8 e1R+ Ne2 Qc1 Rd5 Qg5 Nc1 Qg1 Re5 Qg6 Rd5 Re6 Re1 Qg5 Ree5 Qh4 Ke2 Qhg3 Be8 Kg8 Bd7+ Qe8 Nb3 Qd8 Rf1 Qf8 Kd1 Re8 Rf5 Re3 Rfe5 Qd8 Nc1 Qe8 Rc7 Qe7 Rc8+
2qb4/q1n1RBb1/2b2r2/3P2rq/1K1NP1nk/B1BRr1Q1/N1B3b1/2n1R2q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Ke7 e4 Kf6 d4 Kg5 Kd2 h5 Kc3 a5 g4 f5 d5 c5 b6 a4 b5 a3 b7 a2 b6 h3 Bg2 h2 Qe1 h4 Qg3 h3 Bb2 f3 Qf2 f4 Qe3 f2 Nd2 f1R Rc1 a1Q Re1 Bg7+ Qd4 f3 Re3 f2 Re2 Nf6 Re1 Rg8 Qd3 Na6 b8R Kh4 g5 Nc7 g6 Qa7 b7 Ng4+ Qd4 Bd7 Nb1 Qc8 Bf3 Bc6 Re3 Re1 Ne2 f1B Rd3 Bg2 Qe5 Rf8 Ba3 Rf6 Rf1 h1Q Nd4 h2 Bd1 Re2 Bc2 Re3 Rc1 Qd1 Qf4 h1Q Qd6 Qf3 Re1 Qff5 Qe5 Qh5 Qg3+ Kg5 Kb2 c3+ Kb3 c4+ Kb4 Bh8 Bb3 c2 g7 c1B g8B c3 Bf7 c2 Nc3 Bg7 Na2 Bb2 Ba4 c1N Bc2 Ba1 Qe5+ Kh4 Qd6 Qd7 Re8 Qc8 b8B Bb2 Re7 Bc3+ Kc4 Ba5 Qf4 Ne6 Bbd6 Bd8 Bdb4 Nc7 Bc3 Rb8 Qd6 Rb6 Kc5 Rf5 Qe5 Rg5 Kc4 Ba8 Qf4 Rf6 Kb4 Bc6 Qg3+
BQ3n1q/NK1b2q1/r1B4r/bnP1RR2/r1Pn1R2/1bb1B1N1/2qk4/4q1B1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 Ke7 h4 Ke6 e4 Ke5 a3 g5 h5 f5 c3 d5 h6 b5 h7 b3 Rh6 g3+ Kf3 g2 Rf6 d4 Bd2 d3 Rf7 b4 Qc2 b2 Qc1 b3 Qe1 g4+ Kf2 g3+ Kf3 Nc6 Qf2 Ra4 Be3 d2 Nh3 g1Q Rc7 d1B+ Be2 g2 Rf7 Nf6 Qg3 Bd7 Ng5 Bg7 Bf2 Qe1 Ra2 g1B c4 Bh2 Nc3 b1Q Rb2 Qc2 Nb5 Qg8 Ra2 b2 Na7 b1N Rb2 Ra6 a4 Nc3 a5 Nb5 Rb3 Qd8 Re3 Kd4 e5 Qg1 Re4+ Kc3 e6 Kd2 e7 Qe1 e8R Ncd4+ Kg2 Qc7 R8e5 Ra8 h8B Nh7 Qb3 Nf8 Bf3 Bf6 Bg1 Qh4 Bg7 Qh8 Bf2 Bd8 Qb2 Rh6 a6 Qb7 Bg1 Ba5 Kf2 Bc3 Bg2 f3 Rf4 Qc6 Qb4 Qg6 Bf6 Qgg7 Ne4+ Kc1+ Ke3 f2 Qb3 f1R Bh4 Bg3 Qb4 Bge1 Ng3 Rf2 Qb3 Ba5 Bc6 Bec3 Ne4 Rg2 Bhf2 Rgg6 Ng3 Qa2 Rf3 f4+ Ke4 Qc2+ Kd5 Kd2 Rff5 Re6 Rfe3 f3 R3e4 Qc1 Qb1 Bb3 Ref4 Ref6 Nc8 Qc2 a7 Rb8 a8B Re6 Bcb7 Ra6 Bc6 Rb7 Qa2 Rba7 Qb2 Bc7 Qb1 Ra4 Qb2 R7a6 Na7 Bd8 Qa3 Bda5 Qb4 Nd6 Qb6 N6b5 Qb8 Bc7 Bcb7 Ne2 Bd4 f2 Be3+ Ke1 Bd4 f1Q Bdf2+ Kd2 Bc8 Bb6 Bcb7 Be6+ Kc6 Qe1 Bc8 Bc7+ Kb7 Ned4 Bd7 Bb6 Qc7 Bba5 Bc6 Bd7 Qd6 Ng6 Qb8 Nf8 Be3+
1n2q2B/1r1r1NR1/RNrb1P1K/5R2/1N2bk2/1N3b2/Pn1q1Qq1/1nq1b2B b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 g4 b5 d3 h5 d6 c4 d7 e3 f3 e2 Na3 e1Q Bh3 b3 Rb1 b4 Ra1 c3 Qd2 b2 Ne2 b1R Bg2 h3 Rg1 h4 Bf1 b3 Nb5 h2 Nc7 h1B Bb2 h3 Bg2 h2 Nd4 c2 Nd5 c1Q Nb6 Qe8 d8N Ra7 Bc3 b2 f4+ Kd6 f5 Ke5 Bd5 Bb7 Rf1 Qf2 Nb3+ Qd4 Rf4 Nh6 Qf2 Bf3 Be4 h1Q Nc6+ Kd6 Nb4 Ke5 Bd5 Nf7+ Kg6 e6 g5 Bd6 Kg7 Ra6 g6 Qg2 Rh4 Rf8 Rh6 Kf4+ Kh7 e5 g7 e4 g8R e3 Rg7 e2 Rf6 Ng5+ Kh6 e1B Be4 Qde3 d4 Nh3 d5 Qed2 Re6 Rf7 Bd4 Bf8 d6 Bc6 d7 Bd6 d8N Rd7 Nf7 Bd5 Qf1 Nf2 Rf6 Nd3 Qf2 Ba8 Qg1 Qc7 Nc6 Bc5 Rg5 Qf1 Nc4 Bd1 Rgg6 Bc2 Nba5 Bg3 Qh2 Be7 Bh1 Bd1 Qg1 Bf3 Qh2 Rb6 Qe2 Rc1 Nb4 Bae4 Qe1 Rb7 Nb3 Rc3 Qe2 Qf2 Rg1 b1N Rg5 Qcc8 Ra6 Bd6 Bh8 Nb2 f6 Bh4 R1g3 Qg2 Nb6 Rc1 Rb5 Rc2 Rg7 Be1 Rh5 Qcc3 Qf1 Qc1 Rc5 Q3d2 Qf2 Rc3 Re5 Rc6 Rf5+
2Q1nRn1/6bb/2r1PnR1/3B1rBB/5q2/2qR2b1/rkRNKNPq/1r4q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 b4 Ke7 c4 Kf6 e4 Ke5 b6 d5 b5 h5 c5 f5 b7 a5 b6 h3 c6 h4 c7 f3 Qd2 d3 Kf2 Kd4 e5 f4 Qe2 d2 Qe1 d1R Ra3 h2 Ba6 a4 Ra2 h3 Re2 a3 Bc4 a2 Bb5 a1B Nd2 Kc3 Ba3 d4 Bc6 d3 Be4 Bg7 Nc4+ d2 Bc6 Rb1 Re3+ Qd3 Nb2 Bf5 c8B Rh6 Re2 Nd7 b8R Bh7 b7 Ndf6 Bb5 Ne8 Bc4 Rc6 Be7 Ra2 Kf1 f2 Nf3 Kc2 e6 Qc3 Re3 d1N Ke2 f1R Bd5 Nf2 Nd3 Ne4 Nf2 Kb2 Bd7 N4f6 Rg1 h1Q Nd2 h2 Rd3 Rca6 Ba4 Rc6 Bd1 f3+ Ke3 Nd7 Bg5 Be5 Qe2 Ndf6 Ra8 Bg3 b8R+ Qb4 Rb7 Qb3 Rg7 Qc3 Ng4 f2 Rg6 Re1 Rc8 f1Q Rd8 Qf5 Nf2 Rf1 Qg4 Qf4+ Ke2 Qb8 Qc4 Qf4 Ng4 Rf3 Rf1 Qg1 Nf2 h1Q Qc5 Ng7 Rf8 Qhh2 Qc4 Nge8 Qa6 Qfd4 Qc8 Rf5 Bc2 Nc7 Rc1 Nce8 Bcb3 Qa4 Bf3 Qah4 Bbd5 Qf4 Bh5 Qcb4 Nf1 Ng4 Rd4 Ka3+ Rd2 Bg7 Nd3 N4f6 Nf2 Raa1 Rd3+ Qc3 Nd2 Kb2 Qa6 Ra5 Qc8 Ra2 Rc2+
k1KR2r1/1r3P2/2B1n2B/r1r1R2n/N3P1qB/nB2Q1b1/R1q3q1/1N2b1qb b - - 0 1 illegal: No proof kernel
2k1BrRB/1b3Nb1/QB3r2/P2RP1bK/2n1R1n1/rn1b1b2/1R3b2/2rNq3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 c5 e4 b5 h4 f5 d4 g5 h5 b3 e5 b2 d6 c4 d5 f3 Kg3 f2 h6 f4+ Kh2 g3+ Kh3 f3 Kg4 b4 h7 b3 Kh5 c3 Qe2 c2 Rh4 g2 Qd1 g4 Ba6 f1N Rh2 g3 Bb5+ Nc6 Qd3 f2 Qd4 Nh6 Qb4 Ne3 Qh4 f1R Qe4 Rf6 Qd4 Qa5 Bc4 Qe1 Nc3 b1B Qa7+ Bb7 Bb5 b2 Nd1 Bg7 Qa6 Nc4 Nh3 g1B Be3 c1R Bb6 g2 Ng5 Rhf8 h8B Ng4 Nf7 Kc8 Rh4 Ba2 Rb1 Nd4 Be8 Be3 d7+ Kb8 d6 g1B Ra1 Bg5 Rb1 Nb3 d8R+ Bc8 d7 Bf2 Ra1 b1B Rh2 Bd3 Rg2 Bfh4 Rb2 Bf2 Rab1 Ra7 Re2 Ra8 Rbb2 Bab1 Re3 Be4 Ree2 Bf3 Re4 Bd3 Qb5 Ra5 Qa6 Rb5 a5 Rb4 Bd4 Ra4 Be3 Kc7 Bc5 Bb7 Ra8 Bfe3 d8R Ra3 Rd5 Bf2 Rad8 Bc8 Bb6+ Kb8 R8d7 Bb7 Re7 Kc8 Re6 Rf5 Rh6 Rf6 Rg6 B7h6 Rg8 Bg7 Ba4 Rf4 Bb5 Rf6 Be8
K4nb1/PR3b2/1b1r1nRr/3P1n2/1BQ1rn1B/2N3k1/2nqBN2/1N2b1nB b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 a4 b5 d4 f5+ Kd3 c5 e4 c4+ Kc2 f3 g4 h3 a5 f2 a6 c3 Kd3 f4 a7 f3 g5 h4 g6 h2 g7 b3 Ra2 b4 Kc4 c2 Kb5 h3 Bd3 f1R Qe2 f2 Qh5 b2 Qg4 b3 Qf5 Rh6 Ne2 Be6 Ra1 Rd1 Qg6 f1B Qg5 Nd7 Ka6 Ngf6 Kb7 Bf7 Na3 b1N g8N b2 Ra2 Nd2 Qh5 b1N Qg5 Nf3 Bd2 c1B Qh4 Ng1 Nc3 Be7 Bc4 Nf8 Be2 Re1 Bg5 Be3 Rb2 Qa5 Qg4 Rd8 Rb3 Rd7+ Ka8 Bd8 Rb5 Bf2 Rb7 Bb6 Qh4 Qb4 Qg4 Qb2 Qh4 Qd2 Qg4 Nh5 Nf6 Nf4 Qh4 Bg8 Ng4 Bg3 Nf2 Bf7 Bg4 Bc4 Bd1 Re3 Be2 Bg8 Ng4 Be1 Nf2 Nf3 Rf1 h1N Rg1 Ng3 Qg4 Ngh5 Rg3 Nf6 e5+ Ke7 e6 Kd6 e7 h2 e8B h1N Bg6 Bf7 Be4 Ng1 Qh4 Bg8 Rg4 Ng3 Bh1 Nf5 Rg3 Ke7 d6+ Ke6 Qg4 Re4 d5+ Ke5 Rg2 Bd3 Qh4 N6h7 Be7 Nf6 Rg6 Bf7 Nab5 Na3 Nb1 Nc2 N5c3 Rc7 d7 Rc6 Ba3 Rd6 d8B Bg8 Bc5 Bb5 Bb4 Be8 Qh3 Bef7 Qd3 N4e6 Qc4 Kf4 Bg4 Kg3 Be2+ Ng4 Bf6 Nf4 Bg5 Nf6 Bh4+
Qb1rr3/1K1Bn3/N1N2R2/2b3b1/1b2Pb1q/qBR3Rb/4rP1B/1B1k1nr1 b - - 0 1 illegal: No proof kernel
k1NN2B1/R1br1b2/2R4P/nqnP3n/2qB3Q/b2brRb1/2nK1R1b/4N3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 e4 f5 d4 c5 h4 Kc7 b6+ Kb7 d5 a5 b5 g5 e5 a4 h5 f3 h6 f2+ Ke2 c3 e6 g3 e7 a3 e8N c2 Bb2 c1N+ Ke3 g4 Rh5 c4 Ra2 c3 Qc2 g2 Nc7 g3 Ne2 g1B Qd1 f4+ Kd4 c2 Kc3 g2 Rf5 f3 Ra1 a2 Qd3 Nb3 Rf6 c1B Ne6 Nc5 Qc2 Rh7 N2f4 Rd7 Qa4 Bd6 Bd3 f1B Bh7 f2 Nd2 Qc7 Ne4 Bh2 Nd3 g1B Ne1 Nc6 Rf3 Nf6 Bg8 Bd3 Nd8+ Kb8 b7 f1Q Rf2 Bdg3 Nd6 Na5 Qh4 Nh5 Rf3 Bcf4 Rc1 a1N Rf2 Ka7 b8R Nc2 Rf3 Be5+ Kd2 Bgd4 Ba1 Bb2 Rf2 Ba3 Bd4 Qc6 Rb6 Rb8 Rb7+ Ka8 b6 Qb5 Rf3 Rg7 Rf2 Be6 Nc8 Rh7 Rbf7 Bc7 R7f6 Rd7 R6f3 Nb4 Rc2 Bf7 Rc4 Nc2 Rc3 Na6 Rc6 Nc5 Ne7 Rc8 b7+ Ka7 b8R Qc4 Rb1 Ka8 Rbb6 Rb8 Rb2 Rb3 Nc8 Rc3 Ng2 Qb1 Rb7 Qbb5 Ne1 Bh7 Rcb6 Re3 Rc6 Bd3 Ra7+
b7/K2Bqqbn/1P2r1kB/bR3R1R/2b1qrbn/1P1b4/3RBN2/3Nq1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 Kf7 Kc4 h5 e4 a5 g4 d5+ Kd3 f3 c4 f2 b3 a4 e5 h3 b6 f4 g5 h2 c5 f3 e6+ Kg6 e7 h4 e8R h3 c6 a3 c7 a2 Be3 Bb4 Nd2 Ba6+ Nc4 Rh4 c8B Rf4 Be6 Ne7 Qe1 Ba5 Qb1 Nd7 Rh8 Nf5 Re8 Nh4 Qb2 Nf8 Bd2 Nh7 Bg4 Qe7 Rc1 a1B Rh8 Re8 Be2 f1B Rc2 f2 Qc1 Bb2 Bd7 Bbc3 Nf3 Ba1 Rg1 h1B Ne1 h2 Rf8 Bhg2 Rf5 h1Q Be3 Bf3 Rd2 Bg4 Qb1 Bg2 Qd1 f1B Qc1 B2f3 Rg2 Qf7 Rh2 Re6 Qb1 Bc8 Nb2 Ba6+ Kc2 Bc4 Ned3 Qe7 Nd1 Qg2 N3f2 d3+ Kc1 d4 Rh1 Kg7 g6 Ba8 Rh3 Kh6 g7 Qe4 g8R Qf7 Rc8 Kg6 Rcc5 Qe7 Rb5 B1c3 Rc2 Qf7 Qa1 d2+ Kb1 d3 Ka2 Bd4 Ka3 Bg7 Ka4 Qe7 Nb2 d1Q Rd2 Qe1 Nbd1 Nf3 Rhh5 Nh4 Ra2 d2 Qd4 Rf3 Bh6 Rf4 Qe3 Qf7 Qg3 Qe7 Qg1 Qf7 Nc3 d1Q Rd2 Qdb1 Ncd1 Qbd3 Rbc5 Qd6 Rce5 Bcd5+ Kb5 Qde7 Ka6 Bc4+ Ka7 Bd3 Rb5 Bc4 Bf3 Bfd3 Be2
2R1r3/2b1q1RP/4QNn1/rNBB1B2/b3b2q/P3b1n1/1br2k1r/1KBNb3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 h4 Kd6 d4 c5 Kd2 b5 Kc2 g5 h5 f5 h6 b3+ Kb2 f3 a3 c4 h7 f4 Rh6+ Nf6 Nd2 b4 Rg6 g3 Qe2 g4 Ra2 c3+ Kb1 f2 Qd1 f3 Ne2 b2 Qc2 g2 Nf4 g1B Rg7 g3 Qb3 g2 Qc2 Bd7 Ne6 Bh2 Qb3 g1B Qa4 Qe7 Rg4 Nc6 Bc4 f1Q Nd8 f2 Qa6 Nh5 Rg7 Qh3 Ne6 f1R Nf4 Be3 Ne2 Ng3 Bd3 Rh1 e5+ Kc7 e6 Kd6 Qb6 Qhh4 Bf5 Ra5 Qa6 Be8 Qc8 Ne5 Qc4 Qf7 e7 Ba4 e8B Ng6 Bc6 Be7 Bb7 Re8 Qc8 Bf6 Ba8 Qe7 Qe6+ Kc7 d6+ Kb6 d5 Kc5 d7 Bf2 d8N Be1 Nf4 Kd4 d6 Be5 d7 Ke3 Nc6 Kf2 d8B Bf6 Ra1 c2+ Ka2 b1R Nd4 Rb3 Nfe2 Rc3 Bb6 b3+ Kb2 Bg5 Bc5 Be3 Nb5 Rc4 Rb1 Rc3 Ka1 b2+ Ka2 Rc4 Bd5 Rc3 Ra1 b1B+ Kb2 Nf1 Ra2 Bc7 Ra1 Rc4 Nec3 Rh2 Ra2 Ng3 Nde4+ Kf1 Nf6 Kf2 Bd2 c1B+ Ka1 Bd3 Rc2 Bb2+ Ka2 Rd4 Kb1 Be4 Bc1+ Rd2 Ne2 Bh1 Rc4 Rc2 Nec3 Bd8 Bb6 Be4 Rc8 Bc7 Bd4 Kg1 Bc5 Kf2 Nd1+
Nqq3B1/1nr1Rrq1/3n4/1rR2kB1/2P5/q1RP2nK/1bb1R1r1/Qn4BN b - - 0 1 illegal: No proof kernel
bR1B4/4K1nN/BB1QPn1q/bn4r1/P2r3n/2b3q1/RqNkb1q1/5BN1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 a4 b5 d4 c5 d6 f5 d5 f3 g5 h3 g6 h4 d7 h2 Ke6 b3 g7 b4 d6 b2 Ra2 h3 Nc3 b1Q Qc2 b3 Bf4 f2 Bh6 b2 Ra3 f4 Ra1 f3 Qh7 Qc7 Bf4 Ba6 d8N Nd7 Ra2 Ne5 d7 Nf6 g8B Ng6 Nd1 Bg7 Be5 Nh4 Qg6 Rh5 Bd6 Rg5 Bf8 Qg3 Bg2 f1Q e4 Kd3 e5+ Kd2 Ke7 f2 e6 c4 Bf3 c3 Ra1 c2 Bd5 c1B Bb7 Be2 Nf7 Rd8 Qh6 Qfg2 Bh7 f1N Bg6 Ne3 Ra3 Qa2 Qh8 b1N Ba6 Nc3 Bgd3 Qb2 Ra2 Nb5 Qh5 Bh8 Qg4 Bg7 Qd4 Bh8 Qd6 Bg7 Nh6 Bh8 Ng4 Nef5+ Kf7 Ng7 Nde3 Kc3 Nc2 Bd2 Ke7 Be1 Nf3 Bd2 Rha1 h1B Ng1 h2 Rb1 Be1 Qd5 Kd2 Qd6 Rc8 d8B Rc4 Bb6 Rd4 Bc4 Q2h3 Bd3 Ba8 Bc4 h1Q Bd8 Nfe8 Nf6 Q1g2 Nh7 Nf6 Bb6 Qf5 Bd8 Qg6 Bb6 Qh6 Bd3 Bef3 Bf1 Bg4 Kf7 Be2 Be7 Kd3 Kf8 Ba5 Bed8 Kd2 Ke7 Nc7 Nb4 Nfe8 Nd5 Qc2 Qd7 Rdg4 Bc8 Nh5 Bc5 Bhc3 Rb8 Rd4 Ne3 Nb5 Qd6 Nhf6 Ba6 Qb2 Bcb6 Ng7 Nc2
RnrN1B2/rn2B3/k4n1b/3b1qR1/3RNB2/Q1rbP1b1/2Pqbp2/3B3K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 f5 b4 d5 g4 Kd7 Kg2 Kc7 e3 Kb6 g5 h5 g6 a5 g7 a4 Ba3 d3 Qe2 d4 Qd1 f3+ Kh2 d2 Qe1 d1B Bc4 h3 Qc3 h4 Qd3 f4 Qf5 f2 Nf3 f1Q Qe4 d3 Qd5 d2 Qe5 Ra7 Qe4 Bf5 Qe5 Be2 Bc1 d1R Ba3 Nf6 g8R Rd3 Nd4 f3 Rg5 Bh6 Qe7 Rc3 Nc6 Qd2 Nd8 Bfd3 Bd5 f2 Bf3 Qfe1 Rf1 Rg8 Kh1 h2 Rfg1 Qf1 Rg4 Qh3 Rd4 Qf5 Rg5 Re8 Nc6 Rc8 Nd8 Ne4 Bg4 Nd6 Bh5 Nb7 Qf8 R3c6 Nc3 R6c7 Ne4 Rc3 Kg2 h1B+ Kh2 Bf1 Bd1 h3 Qe7 Bf3 Qf8 Bf3e2 Kh1 h2 Ra2 Bc4 Ra1 Bd5 Ra2 Ra8 Qd6+ Ka7 b6+ Ka6 Qe7 Ra7 b5+ Ka5 Bd6 a3 Qf8 Bd3 Be7 Bfe2 Ra1 Nc5 b7 a2 b6 Ka6 Rb1 a1B Rc1 Nc6 b8B Nb7 Bbd6 Nb8 Bf4 Bb2 Rb1 Ba3 Rb3 Bd6 Ra3+ Na5 b7 Be5 Kg2 h1N Ra2 Ng3 Kh2 Nh5 Kh1 Nd7 b8B Nhf6 Bbd6 Nb8 Rb2 Nbc6 Rb8 Nb7 Ra8 Nb8 Qg8 Bc6 Qb3 Bd5 Bf8 Ka5 Bde7 Ka6 Bh2 Bg3 Qb2 Bh4 Bf4 Bg3 Qa3+
1nBr1n2/1r5n/1N1b3R/1q5q/nNn1b1N1/2p2PQN/qR1P4/r1kRK1B1 b - - 0 1 illegal: No possible last move
R2BR1NK/5q2/k4Bq1/Nr1q1B2/1bpr1n1b/PQ6/1rPn1q2/1B1R2qn b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 a5 Ke1 axb4 h3 fxg4 Ba3 g3 Bc1 g2 Nc3 g5 Nb1 g4 Bc4 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Ke3 Kc8 Kf4 b5 Kg5 Kb7 f4 h5 Kg6 e5 d4 c5 d5 e3 a3 b3 g5 h4 f5 e4 d6 b2 d7 h3 f6 e2 f7 e1Q Qd2 b4 Nc3 b1R Qe2 e3 Qd1 c4 Be2 h2 Nf3 g1Q Nd4 b3 Qd3 b2 Bg4 g2 Bf5 e2 Ne4 Bb4 Kg7 Na6 f8R Qef2 g6 e1B Nc6 Ne7 Bg5 Rb8 Re8 Rh4 Nf6 Rd4 Ng8 Nc5 Kh8 Ka6 g7 Nd5 Bf6 Nb3 Na5 Nd2 Qb3 Qgf1 Rg1 Rb5 Rh1 Qb6 d8B g1Q Bd7 Nf4 Bc6 Rc5 Ba4 Qg6 Rg1 h1N Rg5 Rb5 Rc5 Qgg1 Rc8 Qd3 Ra8+ Qa7 Nh6 Qe4 g8B Qgg6 Bh7 Qc6 Ng8 Qd5 Rb8 Qaf7 Rc8 Qgg5 Bf5 Qgg6 Rb8 Qf1 Rc8 Bh4 Rb8 Qf2 Rc8 Re1 Rd1 b1Q Rb8 Re7 Ra8+ Ra7 Qc3 Qa1 Bb3 Qc1 Ba2 Qb1 Rb8 Rab7 Qb3 Qc1 Bb1 R7b6 Rf1 Qd1 Rg1 Qdg4 Rf1 Qgg1 Ra8+ Qa7 Rd1 Bd6 Qh3 Rb2 Rf8 Bb4 Re8 Rb5 Rb8 Qad7 Qb3 Q7f7 Ra8+
7Q/B4n2/K2b4/RNr3b1/P1Bb2Nq/nb1P1r1q/B3qnp1/2bN1kRB b - - 0 1 illegal: No possible last move
1B2QNrN/5K2/qR1q1b2/3n1P2/bp1R1q2/q1RB4/kr2q2P/n2B1rBn b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 g5 Kd4 e5+ Kc4 c5 f4 b5+ Kb3 g3 d4 e3 a4 e2 a5 e1N a6 g4 d6 Ke6 d7 Kd5 f5 c4+ Kb2 c3+ Kb3 g2 a7 g3 Nd2 e4 Qc2 e3 Ra2 e2 Nb1 Be7 Nf3 g1R Bb2 g2 Nfd2 Bf6 Bc1 Nh6 Nf3 Na6 Ng5 Ng4 Ra3 Nf2 Nh7 Nc7 Be3 Rg8 Nd2 Rb8 a8B+ Bb7 Nf8 Bc6 Qa2 c2 Nf3 c1Q Ng5 Nc2 Nf7 e1Q Bd3 Qe2 Nh8 Rf1 Qb2 Qc8 d8B g1Q Be7 Qe6 Bd6 Qg6 Rg1 Qh6 Rg6 Nh1 Bg1 Qcf4 Qc1 Qc8 Qe3 Qa6 Qe8 Qh3 Bc5 Qd6 Ba7 Qhg4 Bb7 Qgf4 Ba8 Rb7 Bb8 Bd7 Kb2 b3 Kc3 Na1 Rh6 Qde5 Kb4 b2 Rc3 Bd8 Rb6 Bf6 Bc2 b1Q+ Bb3+ Ke4 d5 Qbb2 d6 Nd5+ Kc5 Bc6 d7 Qe6 Rc4+ Kd3 d8R Qd7 Rd4+ Kc3 Rc8 Qba2 Bc2 Kb2 Bd1 Qb3 Rc7 Ka2 Rc8 b4 Rc7 Ra7 Rc8 Bb5 Bc6 Ba4 Bb5 Qa3 Bd3 Qh7 Rcc6 Qhh6 Rc8 Re7 Rcc6 Re5 Kd6 Qg6 Rc3 Re3+ Qe5 Ref3 Ke6 R3f2 Qe3 Qgh6 Kf7 Qd6 Qe4 Qhf4 Nhg6 Qee3 Qe7 Rb2 Qe8 Qe2 Nh8
2b2r2/R4Q1K/B1b1nr2/2Bp2b1/3n2q1/P1bR2NB/P1R2kN1/3bBqqr b - - 0 1 legal: proof: f4 a5 g4 c5 d4 cxd4 f5 h5 f6 hxg4 Bf4 a4 Bh6 a3 bxa3 exf6 Bd2 f5 Bc1 f4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 b5 h5 f5 h6 g5 h7 g3+ Kf3 d3 e5 Kd4 e6 g2 c5 b4 e7 d2 e8B g4+ Kf2 b3 c6 f3 Kg3 Ke3 c7 f2 Nf3 g1B Rh3 f4+ Kg2 g3 Nh4 b2 Be2 f1R Bb5 Nh6 Rh2 f3+ Kh3 f2 Ba6 g2 Qh5 Bg7 Qf7 Nf5 Kg4 Bc3 Kh5 Nd4 Kg6 Nbc6 Kh6 d5 Bd7 Qg8 Bh3 Ne6 Rh1 Bd7 c8R Ncd4 Rh2 Ba4 Rc7 Qg4 Ra7 Rhf8 h8B Bc6 Kh7 Rac8 Qg7 Rf6 Qf7 Rf8 Bg7 Rd1 Bh8 f1Q Bg7 Rb8 Bf8 Kf2 Bb4 Re1 Bc5 d1B Nd2 Rf8 Rb1 Kg3 Ra1 Be3 Rb1 g1Q Ng2 Bg5 Ne4+ Kf3 Ng3 Kf2 Ra1 Ra8 Bd2 Rf8 Rc1 b1B+ Rc2 Bb2 Qg6 Ba1 Rc3 Bf5 Rd3 Bc3 Ra8 Nf4 Ra7 Bc8 Qf7 Ne6 Re7 Qh1 Ra7 Qfe2 Bf4 Kg1 Ne3 Qef3 Rhd2 Qe2 Ng2 Kf2 Rb2 Qh2 Rbd2 Rh1 Rc2 Qg1 Bd2 Qef1 Be1#
1RN3K1/2B1kn2/b1n2rBr/2Pq2BR/1bq1N3/2q3Pq/Q1pr4/3bqN1N b - - 0 1 illegal: No proof kernel
3b3n/4Rq1Q/3rBn1B/2p2KRN/1R2n3/nR1BPNbn/qr1P4/k4br1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 b6 h5 b3 c5 b7 f5+ Ke5 a5 g5 h3 e3 a4 g6 h4 g7 c3 Rh2 a3 Qe2 a2 Qa6 c2 Be2 f3 Bf1 f2 Qd6 f4 Qg6 f3 Kf4 Qd5 Bg2 f1Q Nc3 f2 Qa6 Be7 Nb1 Nd7 Bb2 c1B Qa7 Ne5 Qa6 Nf6 g8B Nf7 Ne2 Rb8 Qe6 Rh6 Qd6 Bd8 Be5 Nh8 Ng1 Bb2 Rh1 h2 Nc3 Ka3 b4 h3 b5 Qe6 Re1 a1N b6 Nc2 Qe7 Qa2 Ne4 Bd4 Kg5 Kb2 Ng3 Na3 Bf4 Be5 Nh5 Qfc4 Qc7 f1R Nf3 Rg1 Qh7 Qf7 Re2 Bg4 Bf1 Ka1 Rg2 Bf5 Bc4 Bd3 Ba6 Be2 Bd3 Bf1 Kf5 Rg6 Bh6 Bg3 Rf2 Rg4 Rg2 Rd4 Bf8 Rd6 Bh6 Rc8 b8R Rcc6 b7 Rb6 Rf2 Rb2 Re2 Rg2 Rg1 h1N Rf2 h2 Bf4 Bh4 Bh6 Rg3 Rfg2 Nf2 Rh1 Rg7 Rg5 Nh3 Rhg1 h1N R1g4 Rd4 Re4 Rd6 Re8 N1f2 Re7 Qfc4 Be6 Bg3 Ra8 Rg8 b8R N2e4 Rb3 Rg6 Rab8 Rg8 Bc8 Qf7 Be6 Bh2 Rg4 Rg6 R8b4 Rg8 Rh4 Rg1 Rg4 Bg3 Rg5
n3b2R/r1N2N2/rb2kqnn/p1P3Rq/4K2n/Q2nN1rP/1RB1q3/2B4R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 g5 e4 a5 c4 d5 b4 f5 e5 g3 b6 g4 e6 f3 h3 f4 b7 f2 b5 f3 b6 g2 Ra4 g3 Bf4 Ra7 Rh2 Nd7 b8N Nh6 b7 Ne5+ Kc2 d3+ Kc3 d4+ Kd2 Ng6 Qc1 Bd7 Ne2 g1N Qc3 g2 Ra3 Be8 Kd1 d2 Kc2 d1N Kd3 Nb2+ Ke4 d3 Qb3 d2 Nd4 d1Q Nd7 Nd3 b8R Ra6 Ne5 Rh7 Be2 f1N Bc1 f2 Nf7 Ne3 Nc3 f1Q Rh1 Nd5 Ncb5 Nf3 Nc2 g1R Nc7 Nfh4 Ne3 Nb6 c5 Rg3 Ra4 Na8 Qa3 Qf2 Bh5 Qfe2 Rb2 Kf6 Bf3 Bd6 e7 Rg7 Bg2 Qh5 Rd4 Qde2 Rd5 Rh7 Rg5 Bf4 Nb5 Bc7 Bf1 Bb6 Nc7 Bb5 e8R Qd6 Rg8 Be8 Rh8 Ke7 Bg2 Qf6 Bf3 Rg7 Bg4 Rh7 Be6 Rg7 Bb3 Kd7 Nd5 Ke6 Bc2 Rh7 Ne5 Rd7 Nf7 Rda7 Nc7+
2RNKR1N/B4rb1/R4P2/r4Q2/2B1Rr1b/p2qr1nn/k1q1P2q/1br1N3 b - - 0 1 illegal: No proof kernel
3K4/2n3b1/bQr1rP1N/Rr1N2qr/2B1rBn1/p1qR1B1P/5N1n/B3k1q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 f4 Ke6 c4 Kf5 b4 e5 b6 d5 b7 g5 c5 a5 h3 e3 Kd3 a4 c6 e2 c7 e1R b5 a3 b6 g3 Be3 e4+ Kd2 d3 Kc3 g2 Kd4 d2 Bc4 g4 Bb5 g3 Qb3 d1Q+ Bd2 e3 Ne2 g1N Nec3 e2 Ne4 g2 Bc4 Nh6 Nbc3 Qg5 Nf2 Qc1 Rb1 Bg7+ Kc5 d4 Kd6 d3 Nd5 Na6 b8B Ng4 b7 Nf3 Bc3 g1Q Ba1 d2 Qb6 d1R Rb5 Qc3 Ra5 Rb1 Rh2 Rb3 Rg2 Rbb1 Rg3 Nfh2 Rd3 Rh5 Kc6 Rb5 Kd6 Be6 c8B Nc7 Bd7 Ra6 Bc6 Bg8 Kd7 Rc1 Kc8 e1R Kd7 Re4 Kc8 Ke6 f5+ Ke5 f6 Be6+ Kd8 Bc8 Ne3 Kf4 Nf5 Rce1 Nh6 R1e3 B6d5 Kf3 Bc6 Ke2 B6d5 Ne8 Bf4 Ke1 b8N Nc7 Nd7 Re6 Bf3 R3e4 Ne5 Bb7 Nc6 Bc8 Ne7 Bb7 Qd6 Rc6 Nd5 Bc8 Qc5 Ba6 Qb6
k4b1N/nrr3rR/4KPbr/n7/N1pB1qBb/1n4N1/1rR1P3/Q1N2B1q b - - 0 1 illegal: No proof kernel
2n1q3/4bb2/2r1PbB1/nRq2NP1/NNk2N2/b4R1R/1nbB1p2/rq1Q3K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 b4 Ke6 g4 Kd5 Kg2 a5 d4 h5 e3 c5 g5 f5 b6 h3+ Kh2 f3 b5 a4 b7 f4 b6 h4 Qb3 f2 Qc2 a3 Ra2 c3 Bd3 f1B Ba6 f3 Qa4 c2 Bb2 c1B Bc3 c4 Bb5 f2 Bb2 c3 Ba1 c2 Rb2 a2 Bd3 Rh6 Nf3 Nc6 b8R Bf5 b7 Na5 Rb3 Be7 Bc3 a1B Bd2 Qe8 Rc3 Bh7 Bg6 Bc4 Qb3 Bca3 e4+ Kc6 d5+ Kc5 d6 c1N d7 Nd3 d8N Nb2 Rd3 Bf7 Qd1 Kc4 e5 Ra7 Nd4 Ra6 Be4 Rhc6 Nc3 Ra8 Re3 Ra7 Bb1 Bc2 Na4 Ra8 N8e6 Raa6 Rhe1 Ra7 Kh1 h2 Nf4 Raa6 e6 Ra8 Kg2 h3+ Kg3 h1Q Rf3 h2 Nf5 Qf1 Ree3 h1Q Rd3 Qh6 Rb3 Qhf8 Kh2 Qd3 Rb5 Qb3 Kh1 Qb4 Rc8 Qc5 b8N Qg7 Rc7 Qg6 Rcb7 Bd3 Na6 Bd8 Nh4 Bb4 Qe1 Nd1 Rg3 Baf6 R5b6 Rb8 Nc7 Ne7 Na6 Ba3 Rb3 Nc8 Rh3 Bde7 Bc2 Bf5 Rbf3 Be4 Rb1 Rb2 Qg1 Ra2 Rb5 Nb2 Nb4 Ra1 Qd1 Bd3 Bb1 Qe4 Qf1 Qe1 Bc2 Qb1 Qd1 Bf1 Bh7 Bd3 Bg6 Bc2 Nf5
4bq1R/1k5K/1qPbb2R/r1R1P3/p3B2B/Qn1R1NN1/4B1r1/b2bnq1n b - - 0 1 illegal: No possible last move, all moves rejected
1N4Bq/7r/b1PnnR1Q/1B1p1RRn/rq1B3P/1b3bbN/2k4q/1b3K1R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 c4 Ke7 h4 Kd6 e4 Kc5 b6 Kb4 b7 f5 b3 d5 e5 a5 e6 g5 e7 g3 e8B g4 c5 f3 c6 d3 Bh3 g2 Bf4 f2+ Kd2 f1B Ke1 d2+ Kf2 a4 Bg5 f4 Qe1 a3 Qc1 d1B Bh5 g3+ Ke1 a2 Bf5 f3 Qf4+ Bc4 Bd7 f2+ Kd2 f1B Ke1 Ne7 Ne2 g1Q Na3 g2 Bf6 Rh7 Be6 Ra4 Nb5 Qd6 Qh6 Nf5 Bg8 Nd7 b8R Nc5 Nf4 Qh2 Nh3 Bfd3 Be2 g1N Nc7+ Ka3 b4 Kb3 b5 Ne6 Rc1 a1Q b6 Bb1 b7 Qb4+ Rc3+ Kb2 Bh8 Be7 Kf1 Bcb3 Bb5 Bd6 Na6 Ne2 Rg3+ Kc2 Rg5 N2f4 Ra8 Qg7 b8R Nh5 Rb7 Bg3 Rf7 Nd6 Rff5 Bb7 Raf8 Bf3 Nb8 Ba6 R8f7 Qg6 Bb2 Qf6 Bd4 Qh8 R7f6
2r1b2b/1BN1b1qB/pQPq1rR1/q2P3N/N4RKB/1kn5/1n5q/qN3r2 b - - 0 1 illegal: No proof kernel
6B1/NRbbn1pB/kb1P1Bq1/r4R1q/1N2Pr2/1N1n4/1nn3nq/QK2B3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 h4 c5 d4 Kc7 Kd2 Kb6 Kc2 f5 a5+ Ka6 d6 b5 h5 f3 h6 f4 d5 c4 h7 f2 d7 c3 e3 f3 Ne2 b3+ Kd3 b2 Kc2 g3 Qd2 b4 Qd1 b3+ Kd3 g2 Bd2 g1B Rh4 c2 Rh3 Qg5 d8B Ne7 Nf4 Qh5 Be1 Nd7 Nd2 Nb6 Rb1 c1N+ Kc3+ Nd3 d6 Bd7 Nd5 Nc4 Bg2 Rg8 h8N f1N Ng6 f2 Rf3 Ra7 Rf5 Qh2 Rc1 b1Q Be4 b2 Ne5 Qa2 Kc2 Qh5 Nb3 b1Q+ Kc3 Ra8 Nc6 Ncb2 Na7 Rh8 Rc2 Rh6 Rc1 Rg6 Rc2 Rg4 Qc1 Rf4 Re2 Nc8 Bf6 Be7 Rd2 Bd8 Rc2 Nc4 Rb2 Bc7 Qd1 Ne7 Qc1 Qa3 Qd1 Qba2 Kc2 Qg6 Qa1 Qc5 Nc3 Qb5 Bd5 Qc5 Bg8 Qd5 e4 Qdf7 Nd5 Nfe3+ Kc3 f1N Bh7 Ng2 Kc2 Bgb6 Nb4+ Kb7 Nc1 Qh5 Nb3 Qfg6 a6+ Kb8 Nac6+ Kc8 a7 Nfe3+ Kc3 Nc2 Rb1 Rb8 a8B Ncb2 Kd2 Rb7 Na7+ Kb8 Nc8 Ra7 Bd5 Ra8 Bdg8 Ra5 Na7 Kb7 Rc1 Nd4 Rcc5 Nc2 Rb5 Qb1 Kc3 Qh2 Kd2 Qd1+ Kc3 Qdh5 Kd2 Nf2 Kc1 Nfd3+ Kb1 Nc4 Nd5 Ncb2 Rb4 Ka6 Rb5 Bg1 Rb7 Bgb6 Nb4+
2R1Nrrn/BbrQ1P2/PR2R1B1/p1b1qB2/8/q2Nq2n/6qB/1K1b1qk1 b - - 0 1 illegal: No proof kernel
bR4Nr/Q3P2q/5r2/1p1N1Bn1/2R2q1P/bB2r3/K1nrk2r/1BNq2Bb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 h4 Ke6 a4 Kf5 c4 Ke4 Kc2 f5 Kb3 b5 e3 d5 h6 g5 h7 g4 c5 d3 c6 g3 c7 d4 a5 g2 a6 d2 a7 d3 Nh3 g1R Qe2 d1R Ra6 f3 Bg2 d2 Qe1 Kd3 e4 f2 e5 f1R e6 f4 Ka2 f3 Qe5 f2 Qd4+ Ke2 Qf6 Nc6 Bd5 Rg3 Bb3 Bb7 c8B Qd7 Qf7 Nf6 Rb6 Re3 Rh2 Nd4 Nf4+ Kf3 Rg2 Nc2 Nd3 Ke2 Rg4 Bh1 Rc4 Ne4 Rb8 Ng5 Bb2 Qc7 Bd4 Qf4 Qb7 Bc5 e7 Bd6 Bf5 Bc5 Rg8 Rf8 a8B Rf6 Rb8 Rg1 Re8 f1B Rb8 Rg2 Qa7 Rh2 Bae4 Bfg2 Nc3+ Kf1 Nd5 Ke2 Bg6 Bd6 Bef5 Bc5 Nb6 Ba8 Nd5 Ree6 Bg1 Re3 Ba4 b3+ Kb2 Re8 h8N Bd6 Nf7 Rh8 Nh6 Ba3+ Kc3 b2 Ng8 b1Q Bh7 Qa1+ Kb3 Qad4 Ka2 Qde4 Be6 Qg6 Bb3 Qf7 Bg6 Qh7 Bd7 Rf1 Be4 d1Q Bdf5 Rff2 Nc5 Ne1 Bb1 Nc2 Nd3 Kf3 Rd4 Rd2 Rc4 Ke2 Nc1+
3Q1qBn/1NpN1q2/3nP1rk/K1N3P1/2q1Bq1N/1r4br/RB4bR/5q1b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 b5 Kd2 h5 g4 f5 e4 Kf7 a4 Kg7 e5 f3 a5 h3 a6 f4 a7 h4 d6 h2 d5 h3 e6 b3 Kc3 b2 Kb4 f2 Na3 b1R+ Bb2+ Nf6 Ra2 f3 Qb3 Bb7 Ka5 b4 d7 Nc6+ Kb5 Ne5 d6 Ne4 Bd3 f1Q Ba1 f2 Qd1 b3 Qe2 b2 Bc2 Ng6 Qc4 Kh6 Ka5 Qf6 d8N Qf4 d7 Nd6 Qc6 Q1c4 Nf3 f1Q Nh4 Q1f2 Qb5 Bg2 Qb8 Rh7 Nb7 Nh8 d8N Qf7 Bf5 Qff4 Bc2 Rg7 Bd3 Rg6 Nc5 Bg7 Qc8 Be5 Ndb7 Rb8 a8B Rd1 Re1 h1B Re2 b1Q Qd8 h2 Bb2 Qa1 Be4 Rd3 Bf5 Qaf1 Rd2 Qd5 Nc4 Rh3 Nb6 Qdc4 Nbd7 Qf8 Bb1 Q4f7 Bf5 Bg3 Bb1 Q1f4 Re2 Rg7 Bh7 Rg6 Bg8 Nf5 Nd6 Rb3 Ndb7 Nd6 Rd2 Bf3 Rf2 Bhg2 Rd2 h1Q Rc2 Qhf1 Rf2 Bh1 Rh2 Nc8 Nd6 Bfg2 Be4 Qfd3 Ndb7 Nd6 Qc8 Qd1 Qd8 Qdf1 g5+
rnB1KBqB/NP1pn1b1/2R2q2/bQ3b2/nr2P1b1/2q2R1B/7R/1b3Nk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 c4 Kg3 e4 Kf2 b4 a5 g4 f5 b6 h5 b5 a4 g5 h3 b7 d3 c5 h2 b6 h4 c6 h3 c7 f3 g6 a3 g7 a2 Bg5 f4 Be7 d2 Bg5 Bb4 Bf6 Ne7 g8B Ba5 Qc1 d1N Kd6 Nb2 Bf7 Qg8 B7c4 Na4 Qc3 Rh5 Bce2 Rb5 Na3 Rb4 Rb1 a1B Nb5 Bb2 Qb3 Ba1 Bc4 Bc3 Bh8 Bg7 Bfe2 Kg2 Rf1 f2 Na7 f3 Qb2 Qh7 Ba6 Qg8 Rc1 f1Q Rc3 f2 Bg4 Qa1 Ne2 f1Q Ng3+ Qf2 Qb1 Qf6+ Be6 Qa3 Nf1 Qb2 Rc6 Qbc3 Qd3 Kf2 Qb5 Kg2 Rg1+ Kf2 Rg3 h1B Re3 Kg1 Rf3 Qb2 Rc2 h2 Re2 Qfc3 Bh3 Bg2 Rd2 h1B Rc2 Nbc6 b8B Bb7 c8R Qf6+ Be6 Bh3 Rh2 Qbc3 Bc7 Bf5 Bd8 Nb8 Rc6 Ng6 Be7 Bg2 Kc7 Bgh3 Bf8 Ne7 Kd8 Bhg4 Ke8 Bc8 Rc7 Bb7 Rc4 Bd5 Rc6 Bc4 Bc8 Ba2 b7 Bb1 Re3 Bd1 Rf3 Be2 Bf7 Bd1 Bh5 Be2 Bg4 Bd1 Bh3 Be2 Re3 Beg4 Rf3
3kbr1q/2RB1N2/3N1QPr/1r2B3/RnrPbrn1/7N/1rpKR2N/r5b1 b - - 0 1 illegal: No possible last move
2NNBbbn/1pb1N1r1/2NB4/4Qq1n/r2RP2r/b1P4R/6bk/2b1KbR1 b - - 0 1 illegal: No proof kernel
2RQ1K2/B3rb1r/b1r5/nN4q1/3RqbB1/PPp2n1q/qB4nk/4RN1B b - - 0 1 illegal: No proof kernel
2bbn1n1/rR1BQ3/r4q2/B3R1qr/1p1k4/N2r2N1/R1n1RPKP/4q1bN b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 a4 Kf7 d4 Kf6 d6 g5 d7 c5 a5 b5 a6 e5 d5 g3 a7 g4 d6 e3 Ke2 c4 Qb3 c3 Ra5 c2 Qd5 b3 Ra4 b4 Ra2 g2 Qa5 e4 Nh3 g1R Na3 g3 Ng5 g2 Qc7 Ke5 Bb2+ Kd5 Bd4 c1Q Bb6 b2 Ba5 Qf6 d8R b1R d7 Na6 Re8 Rh5 d8N Rb3 Ndf7 Be7 Nd6 Bd8 Re5+ Kd4 Qe7 Qc5 Ke1 Nc7 Ke2 Rd3 Nf5+ Kc3 Ke1 Ne8 Ng3 Kd4 Ke2 Rb8 a8R Rb7 Ke1 e2 Rb8 Ra7 Rb7 Re3 Kd2 e1N Bb5 Nc2 Bd7 Ra1 Re1 g1B Nh1 Rd3+ Ke2 e3 Kf1 e2+ Kg2 Qd5+ Ne4 Qc5 Rd1 e1Q Neg3 Ra6 Re2 Qcg5 Rdd2 Ra7 Re5 Ra6 Rde2 Ra7 Rb2 Ra2 Nb1 Ra4 Na3 Ra6 Ra2 Ra7 Bc7 R4a6 Ba5
1rN1r3/bN2N3/5r2/1Rb1RRPq/1kqqn1BB/1nn2P1b/5p1K/4rN1Q b - - 0 1 illegal: No proof kernel
qk6/nN1nb1B1/3rb1r1/KQPNRpqB/1R2P1q1/8/nb1RB3/3qr2B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kd2 g5 a4 d5 h4 Kd7 e4 Kc7 c4 f5 h5 b5 e6 d3 a5 b3 Kc3 g3 h6 d2 a6 d4+ Kd3 g4 a7 b2 e7 b4 e8B g2 c5 b3 Kc4 d3 Kb4 g3 h7 Nc6+ Kb5 Nf6 Ne2 g1Q Ka4 g2 Na3 b1R Nf4 b2 Bh5 Rg8 h8R Be6 Qb3 d1Q Ra2 d2 Nc4 Rg6 Na5 Nd7 Nb7 Qg4 Qb5 Be7 Re8 Rb8 a8B Na7 Rh2 d1Q+ Ka5 Rc8 Ra4 Kb8+ Qb6 Qe3 Nd5 g1B Rb4 Rc6 Rd2 Qeg5 Bg2 Rd6 Bh1 Qc8 Qb5 Bd4 Rh2 Bg7 Bf4 Rc1 Be5 b1N Rd2 Nc3 Bd4 Na2 Bc3 Bgf8 Bg7 Bf6 Re7 Bb2 Re8 Bf7 Re6 Be7 Re5 Be6 Nd8+ Rb6 Bb7 Rd6 Ba6+ Qb7 Nb6 Qa8 Nb7 Qdf3 Nd5 Re1 Qb6 Qb3 Be2 Qd1 Qb5
3bn1B1/1b1r4/1B2nnqQ/P1B1q1NB/r2q2R1/P2p1R1N/1k1K2bb/3N3r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 e4 Ke7 h4 Kf6 h5 Ke5 c3 d5 h6 f5 h7 b5 Be3 g5 Be2 b4 Bb5 f3 Qa4 d3 Bb6 g3 Ne2 b3 Kd1 d2 Bf2 d4 Rh6 b2 Bd7 g2 Rd6 g1B Bb5 f4 Qb3 g4 Qc2 g3 Qd3 g2 Ba4 Bb7 Rg6 Nf6 Bb3 Be7 Qa6 Nbd7 Rg4 Bh2 Bg8 Ne8 Qh6 Ndf6 Ng1 Qc7 Nh3 g1N Be3 f2 c4 f1B c5 f3 c6 f2 a3 Nf3 Ra2 Ra7 Nc3 Ng5 Kc2 b1R Nd1 Bg2 Kd3 Qd6 c7 Bd8 c8N f1Q+ Kc2 Qb8 Nd6 Qg1 Bf2 Rb4 Nf7+ Ke6 e5 Kd5 e6 Kc4 e7 Qe5 Be3 Ne6 Nfg5 Ra4 Bf2 Bbf3 Rb2 Rd7 Rb3 Bb7 Rf3 Rd6 Be3 Rd7 Kb1 Kb3 Bf2+ d3 Bc5 Nd6 e8B Qgd4 Bg6 Nde8 Bh5 Kc4 Nc3 d1Q+ Kb2 Qde2+ Kc1 Kb3 Nd1 Q2e4 Kd2 Qg6 Bf7 Rg8 h8B Rg7 Bg8 Rh7 Ndf2 Kb2 Bg7 Bg3 Bb6 Bh2 Bf8 Rc7 Bb4 Rhd7 Bf8 Rc1 Bfc5 Rh1 Nd1+
5R1q/NKR1NkB1/2Rq1prn/P5bn/2qB4/2Pr3Q/5rb1/1bBB2rn b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 d5 Kf3 g5 a4 b5 e4 g4+ Kg2 f3+ Kg3 d3 Kf4 d2 Ke5 f2 h4 g3 h6 d4 a5 g2 c3 b3 h5 b2 h7 d3 h6 b4 Rh2 b3 Qf3 d1N Rh3 d2 Na3 b1R Nb5 b2 Na7 Bb7 Be2 f1Q Ra4 Be7 Rc4 Bg5 Rc6 Nd7+ Kd6 Nf2 e5 Nh1 Bd1 Qc4 Ne2 g1R e6 Kf8 Nd4 Ndf6+ Ke5 Rg2 Nf5 Rf2 Ne7 Nh5 Rg3 Qe8 Kd6 Rd8+ Kc7 Rd3 Qg4 Ra1 Qh3 b1B Re3 Ba8 Re5 Bb7 Rec5 Qb8+ Kb6 Qh2 Rc7 Bg2 R5c6 Qe5 Kb7 Qd6 Bc2 d1Q Bb3 Qdg4 Bd1 Qh4 Ka8 Ngf6 Kb7 Rg8 h8B Rg6 h7 Ng4 Bd4 f6 h8B Nh6 Bg7+ Ke8 Nec8 Qcc5 e7 Qc4 Qg4 Kf7 e8R+ Qd7 Ne7 Qd6 Rb8 Qh3 Qg3 Qc8+ Kb6 Qh8 Kb7 Rf1 Qg4 Rg1 Qh4 Ra2 Qh3 Rf2 Rf8+
b2r3B/3qN1q1/1k2P1Nr/b2p2RR/R2n2K1/Pnnrq1NR/q1B1Q1b1/8 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 g5 Kf3 d5 c4 Kd7 h4 Kc6 e4 b5 c5 f5 a3 d3 h6 g4+ Kg2 f3+ Kg3 f2 h7 f4+ Kg2 b3 h5 f3+ Kg3 d2 h6 b4 e5 b2 e6 b3 Qe1 d1R Qa5 Bb7 Bg2 f1N+ Kf4 g3 Ne2 f2 Nd2 b1Q Nc3 b2 Rh3 Qg6 Nf3 b1Q Ne2 Qa2 Bb2 Nf6 Qe1 Qg7 Nh4 Qdd7 Ng6 Nd2 Be4 f1B Bc2 g2 Ng3 g1Q Qe2 Nfe4 Kg4 Bg2 Rb1 Kc7 c6 Kb6 c7 Bb4 c8R Bc6 Rg8 Nb3 Bf6 Nc3 Rb2 Qgf7 Ne7 Ba5 Rg5 Qg7 Rh5 Rd8 h8R Rd3 h7 Qe3 Rb1 Bb7 Rbh1 Nc6 R1h3 Rab8 Re8 Ncd4 h8N Bc6 Nhg6 Ba8 Be5 Rbc8 Rf8 Rb8 Rf4 Rh8 Re4 Rh6 Rf4 Rd8 Re4 Qh7 Bh8 Qg7 Rf4 Ndb5 Rc4 N5d4 Ra4
q5QK/nR1B1brn/1rPb3R/6P1/N1rN3q/5R2/p1r1b1qR/B1n1kB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kc4 b4 h5 e4+ d3 g4 d5+ Ke5 a5 g5 f5 b6 a4 b5 f3 c3 f2 b7 f4 b6 a3 Bd2 f3 Be1 d4 Ne2 d2 Qa4+ Kd3 c4 d1R c5 h3 Qa7 a2 Rh2 h4 Ba5 Be6 Nbc3 Kd2 Rb1 d3 Ra1 Rc1 Rh1 h2 Qa6 h3 Rg1 h1R Qc4 h2 Nd4 Ra6 Qb3 Rh7 Be2 f1Q Rg3 f2 Qc4 Ke1 Na4+ d2 Rf3 Qg2 Bc3 Rg7 Bf1 Nf6 Rb1 Qe8 Ba1 d1B Rb2 Bf7+ Kf5 Bd6 e5 Qd8 e6 Rc2 e7 Nc6 b8R Na7 e8B Nh7 c6 Be2 b7 Rb6 Bd7 Rg1 Ra8 h1Q b8R Qh4 Rb7 Qg8 Rc8 Qe8 Rcc7 Qa8 Rc8 Rh1 Rh8 Rh3 Qe6 Rg3 Qe8 Rg4 Qg8 Re4 Ne6 Rec4 Nd4 Nf6 Rh5 Nh7 Rh6 Qgg3 Bh3 f1N Bg2 Nd2 Bf1 Nf8 Kf6 Nb3 Rf2 Qgh3 Rh2 Nc1 Rb3 Qg2 Rbh3 Bd5 Rf3 Nh7+ Kf5 Re7 Kg6 Bf7+ Kg7 Be6+ Kh8 Rg7 Nf5 Bf7 Nd4
2Q2N1n/1b2RN1R/2p1r2b/2KB2nr/R4B2/n2r1B2/1qPR1P1q/k1bb3q b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 e5 d4 e6 fxe6 Qe2 e5 Qf3 e4 Qe3 dxe3 Ke2 Kf7 b4 Ke6 g4 Ke5 b6 Kd4 g5 e5 b5 a5 d3 h5 b7 a4 g6 h3 g7 h2 b6 h4 Ra3 c6 Bg2 h3 Bf1 Nh6 g8B Nf7 Rc3 a3 Bb2 a2 Nd2 a1Q Nc4 Na6 b8Q Nc7 b7 Nb5 Na3 Qh4 Nc4 Ra3 Bc1 Qh6 Ke1 e2 Rb3 Rh7 Qc7 Nh8 b8R Bb7 Rb4 Kc3 d4 Rb3 d5 Na3 Nf3 Bg7 Rg1 h1B d6 h2 Nh4 Bf3 d7 h1Q Ng6 Q6h2 d8R Rh5 Bh3 Bh6 Nd6 Qa2 Bf4 Kb2 Kd2 e1R Rc4 Bd1 Bf7 Ka1 Bg2 Qb2 Ra4 Rf3 Rbc8 e3+ Kd3 e2+ Ke4 Qb3 Qb8 Qa2 Bb3 Qb2 Rc7 Rc3 Rh7 Rch3 Bg5 Rc3 Bf3 Re3+ Kf5 e4 Ke6 Rc3 Nf7 e3 Rd2 Rd3 Nf8 Rf1 Qe8 e1B Qc8 e2 Rgg4 Rg1 Rge4 Rg2 Bf4 Rg6+ Ke7 Rgd6 Ke8 Rf6 Re7 Re6 Bc4 Rdd5 Rd3 Bd2 Ba2 Bc1 Rd2 Rd4 Bad5 Rd3 Kd7 e1N Bg2 Nf3 Kc7 Qf6 Kb6 Ng5 Bgf3 Qb2+ Kc5
1NKn2B1/1BN2p2/3qn3/rb3P1R/Q2bqq2/1RB4r/PbNrn1N1/k1n5 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 c3 bxc3 Qd3 gxh4 Qd6 Nc6 Qd1 Nb8 f4 Ke7 Kf2 Ke6 Ke3 c5 Ke4 b5 g4 h5 e3 d5+ Kd3 h3 e4 c4+ Kd4 b4 g5 h2 g6 b3 g7 b2 Bd3 c2 Be3 c1B Bf1 h4 Bf2 h3 Be1 c3 Bc4 c2 Nf3 Nh6 g8N Qd6 Nh4 Nf5+ Kd3 Bg7 Ba6 d4 Kc4 d3 Kb5 d2 Nf6 Nc6 Kb6 Nfd4 Ng2 Bd7 Na3 b1N Kb7 Bb2 Bd3 c1N Qa4 d1R Bc3 Rd2 Nc2 Be8 Nd7 Ra5 Nb8 Nd8+ Kc8 Bb5 Rf1 h1Q Rf3 h2 Re3 Ke7 e6 Kf6 e7 Qf1 e8B h1Q Bc6 Rh3 e5+ Ke6 Bh7 Qf2 Nge1 Qe4 Bg8 Kf5 Ng2 N4e6 Bb7 Qf1 Bb4 Nc3 Rg3 N3e2 Rb3 Nf8 e6 Bgd4 e7 Nfe6 Rb1 Kf6 f5 Ke5 e8N Qff4 Ba6 Kd5 Nc7+ Kc4 Bb7 Nd3 Rh1 Ndc1 Bc3+ Kd3 Nb4+ Kc4 Nbd5+ Kd3 Rh2 Kc2 Nde3+ Kb1 Rh1 Ka1 Rh2 Rf3 Rh5 Rh3 Nc2+
k3B1N1/R3p1q1/1KbP2qN/1B1b1qbn/R3q2Q/B2PnR2/5R2/r1r1r2n b - - 0 1 illegal: No possible last move, all moves rejected
KN2QrqB/1P2Brb1/nB6/1rp5/2B1bR2/nNb1rN1P/1n1rR2k/6r1 b - - 0 1 illegal: No possible last move
nKb2nR1/B3bN1Q/1b4rb/3Brq2/B1b1r1P1/R3B3/Pk2nnp1/3N3N b - - 0 1 illegal: No proof kernel
1bB4n/Bbn2r2/2q2n2/P1QnqRn1/p1R3qN/1nP1krNB/1RR3K1/8 b - - 0 1 illegal: No proof kernel
r2R4/1qrn1B1K/1p1BP2R/1nqr4/N3QR2/r1P1N3/2R1q3/Bb1rrkb1 b - - 0 1 illegal: No possible last move
1N1br3/rNB2Pbb/2nN1R2/P1k3BN/4R2K/qn1rp1n1/2r3r1/2Q1n2B b - - 0 1 illegal: No possible last move
N2B2b1/b1N2pr1/1q2qNr1/q2B4/1P1Bqk2/1K2bn2/PR2qq2/1RNn2Q1 b - - 0 1 illegal: No proof kernel
1R1N4/1NpBbB2/2Q1q3/B1P3N1/rr1b3K/1PRrnNn1/r1bk2bn/5b2 b - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 g4 Ke6 d4 Kd5 c4+ Ke4 b6 e5 g5 h5 b3 f5 d5 a5 d6 f4 d7 a4 c5 h3 g6 a3 b7 h2 g7 h4 Bb5 h3 Bd2 a2 Ba4 Kd3 Na3 e4 Nc4 e3+ Kf1 f2 Nd6 Na6 b8N Ne7 g8B Nf5 Qe1 Qf6 d8N Nb4 Nd7 Rh4 Bc3 Nc2 N8f7 Be7 Nh6 Qe6 Rc1 a1R Ne4 Ra2 Bc6 R8a4 Ba8 Bb7 Ng3 Be4 Nf3 Rb4 Rg1 h1R Nb6 h2 Kg2 f1N Nf7 e2 Bc6 Nce3+ Kf2 Rh3 Nc8 Raa4 Rg2 Rg1 Ncd6 h1B Bd2 Nh2 Nd8 Ra2 Rc2 Rh4 Qb1 Rd1 N6b7 Rba4 Rg1 Bg2 Bd7 Rg4 Bf7 Rb4 Ng5 f3 Nf1 Ng3 Be1 Rba4 Ba5 Bh7 Nd2 Rgb4 Qb2 Bg6 Rf1 Be4 Qf6 e1B+ Kg1 Ke2 Rc3 Bc2 Qh6 Qg4 Qc6 Qe6 Nc4 Rd3 Ne5 Bd2 Rd1 Bc1 Re1+ Kd2 Kf2 Bb2 Rh1 Nhf1 Rh8 Nh2 Rc4 Bd4 Rc3 Nh5 Rg8 Nf6 Kg3 f2 Rf8 f1B Kh4 Ne4 Nf3+ Ke2 Re8 Ng3 Rh8 Qf5 Ne6 Kd1 Ra8 Qg6 Ned8 Qe6 Rb8 Kc1 Ng1 Kd2 Nf3+
1n6/1pbrq3/rnrBb2P/1Q1R1N2/Bn1R3N/kNb1P2r/1r3N2/K2B3b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 h4 Kd6 a4 Kc5 c4 d5 Kc2 g5 Kb2 f5 a5 g4 e3 d3 a6 f3 h6 f4 h5 d4 a7 b3 h7 Kb4 c5 g3 c6 f2 c7 f3 Ra3 g2 Rh4 d2 Ra6 Qe7 Rf4 Bg7 Ra5 Nf6 Re4 Nfd7 Qc2 d1R Ka1 b2+ Ka2 Nb6 Be2 f1R Qd3 f2 Nd2 b1R Rd5 Be6 c8B Rb2+ Ka1 Rfe1 Qc4+ Ka3 Nb3 f1B Nh3 g1B Bd7 d3 Ba4 d2 Qb5 Bc3 Red4 Bg2 Nf2 Bh2 h6 Rh1 Bh5 Rc8 h8N Bc7 Ng6 Rh3 Nh4 Bh1 Bg4 Rg1 Bh5 d1N Bd2 Rg7 Be1 Bd2 Be2 Nc3 Bd1 Bc1 Bd2 Na2 Bc3 Bd2 Ba5 Nc4 Bb6 Bc3 Bc5+ Nb4 Bd6 Nb6 Qc4 N8d7 Qb5 Rab8 a8N Rg6 Rd3 Rd8 R3d4 Rbc8 Ng4 Nb8 Nf2 Nc4 Nb6 Rd7 Rg5 Rf6 Nd5 Nb6 Rh5 Bd8 Rg5 Rc6 Rf5 Bc7 Re5 Qe8 Ne7 Rg6 Nef5 Qe7 Red5 Rg5 Qa5 Qd8 Rc5 Qe7 Ng3 Rd5 Ngf5 Re5 Rcc4 Rec5 Rd5 Rb5 Qa6 Ra5 Qb5 Ra6 Rcd4
1rk2NN1/pQ2K2R/n2Pb3/3PRbn1/5NB1/1r2b1rr/2bB4/qnr1R1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 Kd7 Kf3 c5 Ke4 f5+ Ke5 h5 g4 c4 b4 c3 d4 c2 e4 h3 d6 a3 d5 f3 b5 a2 g5 f2 b6 h2 g6 h4 g7 f4 b7 h3 Nf3 Nh6 g8R Nf7+ Kf5 Qf6+ Kg4 Na6 b8R Bh6 e5 Ng5 Be3 c1R Bd3 f1R Nd4 f3 Be2 f2 Ne6 Rg1+ Kh5 f1N Qb3 Nd2 Nf8+ Kd8 e6 Rg3 Nc3 Nb1 Bg4 Qd4 Rb4 Rb8 Kg6 Bd7 e7+ Kc8 e8N Be6 Rg1 h1B Rb7 h2 Nf6 Qa4 Bd2 Be4+ Bf5 h1B Ne2 Qd4 Rh7 Bc2 Nf4 Bhe4 Rgg7 Qa4 Ng8 Qa3 Kf6 Qa4 Bg4 B4f5 Qb5 Rb3 Rg3 Rg1 Rh3 Rgg3 Rh5 Nf3 Rh2 Nc3 Re7 Bf7 N4g6 Qd4+ Re5 Be3 Rhh1 Ng5 R7h3 B7e6 Rae1 a1R Ke7 Rc1 Nf4 Nb1 Rhg1 Qa1 Rh4 Rh6 Qb6 Rg6 Rh7 Rh6 Qb5 Rhh3 Qb7+
1b1b4/3BBn2/qr2Q2r/2rB4/R6R/P2qprR1/b1P1rN1R/2nb1kNK b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 g4 Kf7 f4 Kg6 Kf2 b5 Kg2 h5 a3 d5 Qd2 e5 Ra2 e3 Qe2 b3 Nf3 b4 Rg1 d3 Qd1 d2 Qe2 d1R Qe1 e4 Bd2 b2 Qf2 b3 Be2 h4 Bc1 d4 Nc3 b1R Na4 d3 Kh1 h3 Qh2 d2 Ne1 b2 Nc3 Nc6 Nd3 Na5 Bf1 e2 Rg3 e1B Rg2 e3 Qg3 h2 Nf2 Bd6 Qf3 Nh6 Qd5 Bb8 Ne2 Rf8 Ra1 Be6 Ng1 Nb3 Bb5 Nf7 Bd7 Ra5 Rg3 Rc5 f5+ Kh7 g6+ Kh6 g7 Kg5 g8R+ Kh4 f6 Qc8 g5 Qa6 Kg2 h1R g6 Rh3 Rg7 Rh8 Qe5 Rh6 Rh7 Bc4 g7 Be2 Rg5 Rf3 Kh1 Bc4 Qf5 Be2 Rh5+ Kg3 g8B Bc4 Rh4 Be2 Nd3 Bf2 Qe6 Re1 Rh2 d1Q Bd2 Nc1 Bb4 Qd2 Rh8 Bd1 Rh7 Re2 Rh8 Rc7 Be7 Rc5 Rh7 Be1 Nf2 Qdd3 Rh4 Ba5 Rh2 Ng5 f7 Bd8 f8R Nf7 Rh4 Nd6 Rf4 Nf7 Nfh3 Qb3 Ra4 Qbd3 Nf4 Kf2 Nfh3+ Ke1 Nf2 Kf1 Rg7 Ne5 Rg3 Nf7 Ra2 Ra1 Rh2 b1B Rb2 Ba2 Rbb4 Rb1 Rbh4 Rb6 Qc4 Ne5 Bd5 Nf7 Qg4 Bb1 Qg6 Ba2 Qe6
2R1q3/3rBBQK/1r1qR3/2B1r3/2RPN2p/brN3qP/1r2kbq1/1nR4n b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 f5 b5 fxg4 b6 d3 Qd2 axb6 Qd1 b5 Be3 b4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 c3 Kd7 Qb3 Ke8 Kd1 d2 Kc2 d1R Nd2 d4 Kd3 Bf5+ Kc4 d3 Nb1 Kd7 Kd4 d2 Ke3 Bd3 exd3 Ke8 Ke2 Qa5 Ba3 Qb6 Bc1 Qd8 Ke3 Kd7 Ke4 Kc6 Kf5 Kc5 f4 e5 a4 b5 h3 h5 Kg6 e4 c4 Kd4 f5 Ke3 c5 h4 a5 g3 c6 g2 f6 Nd7 f7 Ngf6 c7 Ra6 c8R Nh5+ Qe6 b3 Rh2 b2 Ne2 g1B Na3 b1R Nd4 b4 Qc6 b3 Bg2 b2 Bf1 Bf2 Nf3 Rb6 a6 Ne5+ Kf5 g5 a7 g4 a8R g3 Ng1 g2 Qd6 Qe8 Qd7 Ng3+ Kg5 Nh1 Ra4 Nc4 Ne2 g1Q+ Ng3 Qg2 Nb5 Ba3 f8B Re1 Qc7 Rh7 Nc3 Rd7 Be7 Kf3 Ra6 d1Q Be3 Nd2 B3c5 e3 Kf5 e2 Nge4 Qb3 d4 Qd5+ Qe5 Qd6 Ra4 Rbd1 Rc4 b1R Qf6 R1b3 Rc1 Nb1 Qg5 Rd2 Qg7 Qg1 Rg2 Rdb2 Rg6 Qg2 Rh6 Rd1 Rg6 e1Q Re6 Qe3 Bd3 Re1 Bc2 Qd3 Bd1+ Ke3 Bh5 Ree2 Bf7 Re1 Nd5+ Ke2 Kf6 Q3g3 Ndc3+ Kf3 Qg6 Ree2 Kg7 Ke3 Kh7 Kf3 Nf6 Re5 Qg7 Ke3 Nfe4 Kf3 Na2 Ke2 Nac3+
b6B/1N1r1rb1/1RNnQkb1/1q4N1/rpP4B/2q5/Pn1b4/1r1BNrRK b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 f4 Kf7 Kf2 d5 g4 e5 Kg2 b5 c4 h5 g5 d3 g6+ Kf6 g7 e4 Qe1 e3 Qd2 e2 Rh2 e1B Qf2 d4 Rh3 b3 Kh1 b4 Rh2 d2 Qf3 d1Q Qe3 b2 Bd3 h3 Rg2 h4 Nf3 h2 Bd2 Qc2 Qf2 Nc6 Na3 b1R Qe3 Qe8 Bc3 Ra4 Ng5 Ne5 Be2 d3 Bd1 d2 Qh3 Qc1 Nc2 Ne7 Bb2 Rh7 g8N+ Kg7 Qg4 Qb5 f6+ Kg6 f7 Nd3 Be5 Bf5 Bh8 Bg7 f8B Nc8 Ne7+ Kf6 Nc6 Bg6 f5 Nb2 Bc5 Nd6 Bf2 Nd3 Rg3 Qa3 Re3 Qc3 Re7 Nb2 Rb7 Qa5 Rb6 Qb5 Be2 d1R Qh3 Rd3 Bd1 Bd2 Ne1 Qa5 Nd8 Qb5 Nb7 Re3 Bg3 Re7 Bf2 Rf7 Qg4 Ke5 f6 Rd7 f7 Kf6 f8N Rf7 Kg2 h1R Nfe6 Rf1 Ned8 h3+ Kh2 Rd7 Nc6 Rf7 Qg1 Rd7 Kh1 h2 Bg3 Rh4 Bf2 Rf4 Bh4 R4f3 Kg2 Rf4 Qe3 h1B+ Kh2 Re4 Qe2 Ree7 Qe4 Rf7 Qe3 Kf5 Qe6+ Kf4 Bh5 Bc2 Ncd8 Rd1 Nc5 Ba8 Ncb7 Rf3 Nc6 Bg6 Nc2 Rc1 Qe1 Kf5 Kh1 Kf6 Bg4 Nd1 Qe4 Rb1 Qe3 Rb2 Rc1 Rb1 Qe8 Nb2 Rg1 Nd3 Ne1 Rf1 Bd1 Nb2 Qe6#
N2b2b1/1K3RR1/BRnBQ1rN/b2k2Pq/4q3/q2b4/nP2q1p1/1RN3qr b - - 0 1 illegal: No proof kernel
b2r4/1b3RR1/2q2qnp/1N1rqq1P/1PBrB2R/Nr3n2/1k4K1/R1B2Q1r b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 c3 b5 Qc2 e6 Qd1 b3 Bb2 b4 Bc1 b2 Bc4 b3 Bf1 Bb4 cxb4 Ke7 Nf3 Kf8 Ng1 Ke8 d4 Ke7 a4 Kf6 h4 g5 f4 c5 Kf2 g3+ Kg2 e3 a5 h6 h5 e2 f5 e1R d5 Ke5 a6 c4 d6 c3 f6 c2 f7 g4 f8R Ne7 a7 Nd7 Rf3 Bb7 Ra6 Ng6 Ne2 Qf6 Nd4 Rad8 a8B Re4 Bg5 c1Q Nb5 Rd4 Ra5 Qc6 N1c3 b1Q Qc1 b2 Nd1 Qbf5 Nf2 b1B Be2 Be4 Kg1 g2 Kh2 g1R Bd3 Rg3 Bc2 Rhf8 Rf4 Rb3 Qe1 g3+ Kg1 g2 Qf1 Bf3 Kh2 g1R Ne4 Rd5 Na3 Kd4 Ra6 e5 Nc3+ e4 Bd3 Nde5 d7 Bg2 Rf3 e3 Bc4 e2 Bc1 e1Q Ra5 Qe3 Kg3 Qee4 Rh4 Rh1 Rf2 Nf3 Ncb5+ Ke5 Ra7 Rfe8 Ra4 Re6 Ra7 Red6 Ra2 Rd4 Ra1 R6d5 Kf2 Rf8 d8R Qef4 Rc8 Rfd8 Rc7 Ke4 Rh3 Q4e5 Rg7 Rd1 Nd6+ Kd4 Rh4+ Kc3 Rf7 R1d4 Rg7 Ba6 Raf7 Bc8 Bg5 Bb7 Ndb5+ Kb2 Bd2 Ne1+ Bf4 Bf3 Kg3 Be4+ Kf2 Nf3 Kg2 Qec7 Bg5 Qce5 Qd1 Qcd6 Qf1 Rc5 Kf2 Bc8 Bad5 Ba6 Be6 Ba8 Bed5 Qc6 Kg2 B6b7 Be4 Rcd5 Bc1+
2QqN2R/q2k1r2/B1R2BPp/n1r3n1/b1B5/2qnb1P1/1R3N1K/Rn1qq3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kf2 f5 c4 b5 a4 d5 e4 h6 g6 b3 c5 b2 a5 f3 Kg3 d3 c6 d4 a6 b4 e5 f4+ Kh2 d2 g3 b3 c7 f2 a7 f3 e6 d3 e7 Kd7 e8R Bc5 Re6 Rh7 Rc6 Be3 Qc2 d1N Na3 b1Q Nc4 d2 Kh3 b2 Na3 Qa2 Kh2 b1N Ba6 f1Q Qb2 f2 Nf3 Qfc4 Re1 f1Q Re2 Qc3 Nc4 Nf2 Ng5 d1Q Ne4 Rf7 Qb7 Nd3 Bb2 Nf6 Ncd6 Nh7 Nf2 Qfe1 Bc4 Ng5 Ne8 Qaa4 Qb3 Ba6 Qc2 Bb5 Qc1 Qaa3 Rd2 Ba4 c8B+ Ke7 B8a6 Kd7 Rf6 Nc6 Rc2 Rb8 a8R Na5 Rc6 Rc8 Rd2 Qcc2 Bf6 Qcc3 Rb2 Qc5 Rab8 Qa7 Re6 Qdd2 Ng7 Qf8 Bb3 Qcc7 Qc5 Qe5 Bbc4 Qdd1 Reb6 Qfe8 Qf8 Rc5 Rc6 Qc8 Ra8 Qcc7 Qb8 Q5c3 Qb7 Bb5 Rh8 Ba4 Qb8 Qcb6 Ne8 Qd8 Qc8+
q7/1bqr3R/b3P1nR/2r1B2K/4PB2/3n1Rb1/2pN2r1/QBRrbbNk b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 dxc4 h5 e5 fxe5 g6 Rh4 gxh5 Rh1 h4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ e6 Ke4 d4 h5+ Kh3 b5 g4 c5 a4 f5 d5 f4 e3 c3 g5 c2 d6 c4 g6 c3 d7 f3 a5 b3 a6 f2 g7 b4 a7 b2 Ra4 Na6 Na3 b1R Bb5 f1B+ Kh2 h3 Kg3 h4+ Kg4 h2 Ne2 h3 Bb2 c1B Nf4 c2 Nd5 Qc7 d8B Rh7 Ne7 Nc5 Qd2 Nd3 Nc4 b3 Ra3 Ba6 Ng6 Bd6 Be5 b2 Qe1 Bd2 Nh4 Ne7 g8R Rc8 a8R Rd1 Rg6 b1R Rh6 Ng6 Ra7 Rd7 Nf3 Rb4 Rg1 h1Q Bg5 h2 Kh5 Qg2 Rc3 h1B Bgf4 Rg8 Ba4 Rb5 Bb3 Rc5 Ba2 Rgg7 Bb1 Rg8 Qh4 Be1 Qf6 Rgg7 Nd4 Rg8 Ne2 Kf3 Nd2+ Kf2 Qg7 Qa8 Ra3 Bc6 e4 Bcb7 Rh1 Kg2 Ng1 Nb2 Rf3 Nd3 Rh4 Bc4 Rg4+ Kh1 Ra1 Bca6 Qh8 Nf8 Rg7 Ng6 Re7 Nh4 Reh7 Rg2 Ba2 Ng6 Rc1 Be7 Bb1 B7h4 Qb8 Bhg3 Qa7 Ra5 Qd4 Rc5 Qa1
4N1Qr/1qR1k2r/1B2p1q1/n1bB4/q1bNRKBR/2bP3P/b2Bb3/3n3q b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 b5 Ke3 g5 f4 c5 a4 g3 f5 e6 d6 b3 h3 b2 d7+ Ke7 a5 b4 a6 g4 a7 c4 Qe1 c3 Rh2 g2 Rh1 g3 Ra4 b3 Ra3 c2 Kf4 e3 Ra4 e2 Qd1 e1B Rd4 Qa5 d8R Nf6 Rd3 Ba6 R3d4 Qa4 Qg4 Rh7 Nf3 g1Q Bg2 Bc4 Qg8 Nc6 Re4 Qb6 Nd4 Ng4 Bf3 g2 Na3 b1B Nab5 g1Q Nc7 b2 Ne8 Ne3 Bg4 Nd1 d3 Bc3 Rd6 Na5 Bd2 c1Q Rd5 Rd8 a8B Qb7 Rb5 Bba2 Rb4 b1B f6+ Kd7 f7 Bc2 Rh2 Bc5 f8B Rb8 Bg7 Ke7 Be5 Qh1 Bc7 Bc2b3 Bb6 Qb2 Be1 Qbg2 Bd2 Bc2 Bf3 Qg6 Bg4 Nf2 Rg2 Bd1 Rg1 Bf3 Rc1 Nd1 Rc2 Be2 Rc1 Qa7 Bd5 Qb7 Nf6 Qe1 Re5 Qc8 Nf3 Bf2 Qh8 Bcb3 Rh5 Qb7 Qc8 Bb2 Rh4 Qh1 Re4 Ra8 Rc6 Bc5 Nd4 Bc4 Qh8 Rg8 Ne8 Bc3 Rc8 Rhg7 Qh7 Rh8 Qg8 Rgh7 Rc7+
2NbbQq1/K6B/3pN1Br/B3krb1/2r5/bPN1r1nR/1N2nPR1/rq6 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 c4 Ke6 g4 a5 g5 h5 b3 d3 Kc3 d2 Kd4 h3 Kc5 e3 b6 h2 g6 h4 g7 e2 b7 e1B Nf3 h3 Ng1 a4 Bd3 a3 Qh5 d1R Bc2 a2 Qf3 Nh6 g8N Nf5 Nc3 Rd5+ Kb4 Bd2 c5 Bg5 Kb5 Rh6 Bd2 Ng3 Bg6 Nc6 b8N Nd4+ Kb4 d6 Rb1 a1B Nd1 Bb2 Bf4 Bd7 Bd2 Ra1 Ne2 Bg7 Bh7 B7f6 c6 Ba3+ Kc4 Qf8 c7 Be8 Nc6 Rb5 Rg1 h1R Nb2 h2 Rg2 Rc1+ Bc3 h1Q c8B+ Kf7 Ba6 e5 Nge7 Ke6 Nc8 e4 Qf4 e3 Nd8+ Kd7 Bb7 Qg8+ Bd5 Be7 Bf7 Qe1 Qf6 Rf5 Qg7 Rc2 Qf8 Qh1 Rbg1 Rcc1 Rh2 Qe4 Rh3 Qb1 Rg2 Bef6 Ne6 Bd8 Bfg6 Kc6 Nf4 e2 Nd5 e1R Ng7 Re3 Ne6 Rg1 Ba5 Nde2 Ng7 Kd7 Kb5 Rc1 Ka6 Rc4 Ka7 Kc6 Nc3 Kc5 Rh1 Kd4 Rh3 Ke5 Ne6
6Nq/8/1P1q1BKR/1q2r3/q1bnN1PQ/p1brqB2/1B1N2r1/r2BR1nk b - - 0 1 illegal: No possible last move, all moves rejected
N7/2NB1Qb1/bP6/kqBqb1bn/1pr1P3/1n3B1K/B2nnRR1/4r1bN b - - 0 1 illegal: No proof kernel
1rBn1R2/b2N1nqn/Pk1r4/3b4/1Bp3BN/1N2K2P/nnqR2NQ/5b1b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 g5 d4 b5 e4 c5 a5 Kc7 h3 f5 a6 f3 d6+ Kb6 d7 c4 e5 b3 d5 b2 e6 g3+ Ke3 f2 d6 f4+ Ke2 f3+ Kd2 g4 e7 b4 e8B g2 Nc3 b1N+ Ke3 b3 Qe2 b2 Ne4 g3 Ra3 Nc6 Rd3 Nh6 Rd5 Nc3 Rg5 b1B Bd2 Nf7 Rg8 Na2 Qd3 Rh6 Qd5 Rb8 Qe6 Bb7 Nf6 Be4 Rh2 Bd5 Be2 f1B Bb4 f2 Nf3 g1N Nh4 g2 Bg4 Nf3 Qe5 g1Q Qb2 Qc8 d8N Qf5 d7 Qc2 Ne6 N3g5 d8N Nh7 Nd4 Bc5 Ne6 Ncd8 Nf4 Ba8 Bc8 Qg7 Bed7 Bh1 Bg4 Bad5 Nfg2 Rg6 Nh5 Rd6 Rf8 Kc7 Qc3 Ba7 Qb2 Kb6 Nf6 Be2 Nb3 f1N+ Kf4 Ne3 Qe5 Nd1 Nd7+ Kc7 Qb2 Bf1 Qe5 Nb2 Qe2 Rb5 Qe5 Rb6 Ke3 Kc6 Nf4 Kb5 Rd2 Kc6 Nfg2 Rb8+ Ndc5 Kc7 Qh2 Kb6 Nd7+
1rk1N1q1/1R1p4/1BPPq1b1/rq1Nn1bq/b2N1Bq1/K3R3/2RQb3/3n2R1 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c6 b6 Bh6 b5 Qf6 b7 Bg7 e3 Bf8 b6 Qd8 Bb5 cxb5 g4 f5 d4 h5 Kd2 a5 Kc3 f3 Kb3 h3 c4 h2 c5 h4 e4 a4+ Ka2 h3 e5 f2 e6 f1B d5 f4 d6 f3 g5 b4 g6 a3 e7 f2 g7 Nc6 b8N Bca6 b7 Nf6 g8R Bab5 Rg3 Bfe2 Nc3 f1Q Nd5 b3+ Kb1 a2+ Kb2 Ra5 Nc3 Ne5 c6 Ne4 Rg2 Bh6 Rg6 Bg5 Be3 Ba4 Ka3 b2 Nf3 b1B Bd2 Nf2 Rg1 h1Q Nd4 h2 Nd5 Qhg2 Bf4 h1Q Na6 Qg4 b8B Qhh5 Qd2 Nd1 Ba7 Qe6 Rg7 Bg6 Rb1 Qa8 Rb7 a1Q+ Kb4 Qb1+ Ka3 Qg2 Bb6 Qb5 Rh7 Qgg4 Rh6 Kf7 Nac7 Qg8 e8R Qg7 Ra8 Rb8 Ne8 Qg8 Raa7 Qh1 Rh3 Kf8 Re3 Qhh5 Nec7 Kf7 Na6 Ke8 Nac7+ Kd8 Ne8+ Kc8 Ra6 Qc4 Ra8 Rb5 Ra5 Rc5 Rb5 Qd3+ Rb3 Ra5 Rc3 Qb5 Rc2
nR2Brrr/1PNq2r1/r3PN1B/4bK1b/2R1N3/5k2/Nb1b3p/n3qQB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kf3 Ke5 b4 c5 e4 h5 g4 a5 b6 h3 b5 h4 g5 h2 b7 a4 g6 a3 d3 c3 b6 h3 g7 a2 Qa4 c4 Qc6 c2 Qg6 c3 Qg5 Nh6 g8N Bg7 Nd2 Ng4 Ne7 Na6 b8B+ Nc7 b7 Ne3 Qh6 Qd7 Ba3 c1B Ng8 c2 Bf8 Bb2 Qa6 c1B Nf6 Nc2 Ne2 Rh7 Rb1 a1R Nc3 Rh8 Qc4 R1a6 Ba7 Na1 Na2 Rg8 Rg1 h1R Bg2 Bh8 Bh6 h2 Rd1 Rb8 Bg1 Na8 Bh3 Bg7 Bg4 Bh8 Bh5 Bg7 Be8 Rh8 Nf1 Bd2 Rbc1 Rg8 Ng3 Bh8 Kg2 f3+ Kh3 f2 Qf7 f1R Rc4 f4+ Kh4 f3 d4+ Kd6 d5 Ke5 d6 f2 Kh5 Bg7 Kg6 Rh8 Rc6 Kd4 e5 Kd3 Nge4 Ke2 Qf8 Kf3 Rc4 Re1 Ra4 f1Q Rc4 Qf2 Rdc1 Rf1 R1c2 Qe1 Qf7 Qc7 d7 Qc6 d8N Bg4 Rc1 Bh5+ Kf5 Qd7+ Ne6 Rd8 Rc8 Rg8 Rb8 Rc8 Bc5 Rhg1 Rc4 Bh8 Ba7 R1g7 Bae3 Rfg1 Bf2 Rf8 Ba7 Rgg8 Bb6 R1g7 Bg1 Qd8 Nc7 Qd7+ e6 Rg4 Qg7 Rf7 Rd4 Rgf8 Rc4 Re7 Bf7 Rfd8 Nh7 Rg3 Qg8 Bhe5 Qg7 Rh8 Nhf6 Ree8 Bg6 Reg8 Bf7 Rcf8 Be8 Rg2 Qg3+ Ke2 Qh3 R2g6 Bf2 R6g7 Qf1+ Kf3 Bg1+
2N2b2/1P1K1nn1/nPN2kr1/B2BNr1N/5nb1/4n1Rq/2Rp3r/1B1rQ1q1 b - - 0 1 illegal: No possible last move
1R2n3/PRr2r1r/n5rQ/k2q4/3bbB1R/P4NB1/pn2Nr2/qBR3nK b - - 0 1 illegal: No proof kernel
b7/Nk2NbBK/r1n2Br1/n2B3N/7p/RP1bq3/q1N2Pnr/2bR1Qr1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 g4 d5 c4 Kd7 c5 Kc7 b6+ Kb7 b3 h5 g5 a5 g6 e3+ Kd3 e2 g7 e1Q Bh6 a4 Bd2 a3 Bc3 a2 Nh3 e4+ Kc2 e3 Kd3 e2 Rh2 Ne7 g8N Bh6 Ng1 h3 Bb4 Nbc6 Qd2 Na5 Qg5 Be6 Rg2 h2 Bc3 h1B Qc1 Ra6 Na3 Bf7 Nc2 Qa8 Nh3 Nec6 Nf4 h4 Ne7 Rg8 Rh2 Rg6 Nh5 Bg2 Qd1 Bc1 Rh1 Bf3 Bg2 Qa7 Rb1 a1R Rg1 Qf1 Bh1 Qh3 Qf1 Qg3 Rb2 Qg5 Ra2 Bg2 Ra3 e1N+ Ke2 Be4 Bb2 Ng2 Bc3 Bf5 Kf3 d3 Bg7 d2 Bf6 d1R Bg7 Kb8 b7 d4 Bf6 Kc7 b8B+ Kb7 Bbe5 d3 Bg7 d2 Bef6 Ne3 Bg2 Bd3 Rh1 Qe5 Rg1 Qb2 Kf4 Qa2 Bd5 Re1 Rh1 d1B Rg1 Bf3 Rh1 Rg2 Rg1 Rh2 Kg5 Re2 Kh6 Rd2 Rh1 Ng2 Rg1 Bc4 Kh7 Rd3 Be4 Rd6 Bd5 Qb6 Qd3 Rb1 Rd1 Re6 Qf1 Bce2 Be5 Rg6 Bef6 Bd3 Qg1 Kc7 Qe1 Nd4 c6 Qc5 Be6 Bb2 Rc1 Kb6 c7 Ba8 c8N+ Kb7 Bc4 Ndc6 Bd5 Qe3 Na7 Ra1 Rd1 Rc1 Rd2 Rd1 Qe2 Rg1 Qf1 Bc1 Rd1
2B1nrRr/KN1b3q/8/BRrR1b2/1rk2bPP/2QR2B1/3bpq2/2q1nN2 b - - 0 1 illegal: No proof kernel
2brB3/K2BnkN1/3Br3/1Q5q/N1Pn1B1R/R1pqn3/n1N3P1/q1b1r1q1 b - - 0 1 illegal: No possible last move
2qb1KbN/6B1/n1N3BQ/4P2q/nB1P2p1/1q1r2B1/b2b1Rrn/R3nN1k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 d4 Kd6 b4 Kd5 h4 Ke4 h5 c5 e3 g5 b6 f5 b7 a5 b5 f3 Kg3 f2 h6 f4+ Kh2 a4 b6 c3 h7 c2 Bh3 f1N+ Kg2 g3 Nf3 g4 Rh2 a3 Ne1 c4 Qe2 a2 Qd2 f3+ Kh1 c3 Na3 g2+ Kg1 Qe8 Kf2 g1N Nc4 Be7 Qe2 Na6 b8B Nf6 b7 Nd7 Bb2 c1Q Ne5 c2 Rg2 Nb6 Qd1 Qh5 Ba3 Nh2 Kg3 f2 Qd2 f1B N1f3 Bd8 Bb4 Be6 Rf2 Bg8 Nc6 Bfc4 Be5 Na4 b8B Qd1 B8d6 c1B Bf1 Qb3 Bg7 Bcf7 Be2 Rb8 Bc7 Rb5 Bc4 Rc5 Be6 Rc3 Bc8 Rd3 Bf5+ Kd5 Kf4 Be6 Qb2 Bd2 Qc1 Bef7 Bg6 Be6 Nh4 Ngf3 Nf5 Ne1 Ng3 Bef7 Nf1 Be6 Rb1 a1Q Bcd6 Qac3 Ra1 Bgf7 Bde5 Re8 h8N Bg8 Na5 Qc8 Nc6 Re7 Bed6 Qh7 Kg5 Qh5+ Kf6 Bef7 Rf5+ Ke4 Bf4 Kf3 e4 Kg2 e5 Kh1 Bg3 Bd5 Rf2 Bdf7 Bh6 Rc7+ Kg7 Rb7 Kf8 Rc7 Na5 Rc2 Nc6 Bf4 Rf3 Rg2 Qc2 Qc3 Rf2 Ba2 Bg7 Qb3 Qe2 Bc1 Qe3 Bd2 Qh6
1Bbq2B1/Bn6/n5qR/bKP1p2q/rB1PkQ2/qN4rr/b6N/2r1NR2 b - - 0 1 illegal: No proof kernel
2b3rn/1qn1Bn1q/1b3Nkq/1pR3n1/RRB1P3/3Q4/Rb2b1P1/r2NN1K1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 b5 a4 c5 e4 h5 d4 f5 a5 Kf7 a6 f3 d6 b3 d7 b2 a7 h3 d5 h4 d6 c4 Bd2 c3 Bd3 h2 Kf1 f4 Na3 b1N Qc1 h3 Be3 f2 Bd4 c2 Bb6 Kg6 Qe3 c1B Nf3 Qe7 d8N Bb2 d7 Nh6 Nd2 Rg8 Bc4 Nc3 Ra2 Nd5 Nc6 Nc7 d8R Nf7 Re8 Nh8 Nab1 Nd7 Ra4 Ne5 Na3 Nef7 Qd3 Bh6 Rg1 h1Q Nc2 h2 Nf3 Bhg7 Bc5 Bgd4 Bd6 Bb6 Ne3 Qd7 Nb4 Qc6 Nd1 Qb7 Ke2 f1N Nd5 Nd2 Ne1 Nf3 Kf1 N3g5 Re5 f3 Nf6 f2 Ra2 Bc1 Rc5 Bb2 Ke2 f1B+ Kf2 Rb8 a8R Be2 R8a4 Ra8 Be7 Ra6 Nf3 Ra5 Ne3 Ra7 Rb1 Qc1 Nd1 h1Q Ne1 Qh7 Kg1 Qf4 Qg3 Qfh4 Qh3 Q4h6 Qd3 Bf1 Ra5 Bc3 Rb4 Be2 Rab2 Be5 Ra1 Ra3 Ra4 Ra2 Rab1 Ra1 Rba2 Bc3 Rb3 Bb2 Rbb4
rN4n1/3r2Rb/n4q2/P1nqB1QP/kbBB4/3Rp2N/1q1bN3/bq2N1K1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 d4 Kd7 h4 c5 f4 e5 Kf2 g5 a4 b5 a5 b3 d6 Kc6 d7 c4 f5 b2 f6 g3+ Kg2 b4 f7 Kb5 d5 e3 h5 g4 d6 b3 Qd3 e4 Ra4 e2 Nf3 e1B Rg1 Na6 Bd2 Qf6 d8N Rh7 d7 Bb4 Bc1 Bed2 Kh1 g2+ Kh2 g3+ Kh3 e3 f8N Bb7 Ne1 Be4 Qd4 Rf7 Qc3 Bh7 Nde6 Rg7 d8B Rd7 Rh1 g1N+ Kg2 Nh3 Ra3 Nf4+ Kg1 g2 Bc7 Nd3 Ng5 Ndc5 Qe5 Bdc3 Nh3 Bd2 Nd3 c3 Qg5 c2 Be5 Bdc3 Bd2 c1B Be1 B1d2 Bd4 Qc6 Bg3 Qd5 Bge5 Bc1 Nd2 b1Q Nf3 b2 Nfe1 B1d2 Rb3 Qa2 Ndf4+ Ka4 Bc4 b1Q Ne2 Ba1 Rh2 Qg6 Rd3 Qb2 Rh1 Rdd8 Nd7 Qf6 Nb8 Rd6 Kh2 Rd7 Rf1 Qe7 Rf7 Qee6 Rg7 Qf6 Kg3 g1Q+ Ng2 Qgf1 Kh2 Qd1 Ne1 Qdb1 Kg1
2n3q1/b2br2B/4N1pN/1rn5/4k2B/K1bR1N1P/1rbq1BPR/NQq3q1 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 axb4 e5 cxd4 Qd3 f6 Qe4 fxe5 Qxh7 e4 Kd2 Kf7 a4 Ke6 f4 Kd5 h3 b5 a5 e5 a6 e3+ Kd1 e2+ Kd2 e1Q+ Kd3 g6 c3 b3 a7 b4 f5 b2 Kc2 b3+ Kd3 Na6 f6 Bc5 f7 Ne7 f8B Rb8 a8N Rb5 Nf3 Ba7 Be2 Qg1 Nbd2 b1R Ra3 b2 Kc2 e4 Rh2 e3 Nb3 Ke4 c4 d5 c5 Bd7 c6 Nc8 c7 Nc5 Bc4 e2 Be7 e1B Na1 Qg8 Be3 Bc3 Bh4 Re1 Bb3 Rb1 Qh6 Rh7 Bef2 Re7 Ba2 Rd1 Qc1 d3+ Kb1 d2 Bb3 d4 Ka2 d3 Qb1 Re1 Bf7 d1Q Bc4 Qg7 Bg8 Re2 Bh7 Qc1 Rb3 Qg8 Ka3 Nb6 c8N Rd2 Qa2 b1B+ Qb2 Rc2 Nc7 d2 Ne6 d1Q Nd6+ Kd3 Nd8 Qdd2 N6f7 Nc8 Ne6 Ke4 Nh6 Qcd1 Qc1 Rb2 Nc2 Qd1e1 Na1 Bc2 Qb1 Qef1 Nf5 Qfc1 Nh6 Bd4 Rd3 Bg7 Bhg3 Bc3 Bh4
1B5r/5N1n/b3RNpq/1b1Q1P1n/Rr1N4/b2P1K2/n1qkR1BR/2n2br1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 a4 Kd6 f4 Kc5 h4 Kd4 f5 b5 h5 c5 d6 e5 d7 e3 h6 c4 h7 g6 a5 g3 a6 c3 a7 g2 Qe1 e4 Qg3 c2 Nh3 g1R Qh4 b3 Rh2 b2 Qg4 b4 Bg2 b3 Nf2 Qg5 d8R+ Nd7 Qg3 Rb8 a8N Ba6+ Nd3 Ba3 Qe1 Nf6 Bf1 Qh6 Qd1 Rb4 Ra2 Nh5 Rg8 Ndf6 Nc3 b1B Rb8 b2 Rb6 Bb5 Ke1 e2 Kf2 e1N Bg2 e3+ Ke2 Ba6 Nc7 Kc4 Ra1 Ba2 Ne8 b1B Bb2 c1Q Rd6 Nc2 Kf3 e2 Re6 Kb3 Nb5 e1N+ Kf2 Kc4 Nd4 Bb3 Ke2 Ba4 Ra2 B4b5 Ne5+ Kc5+ Kf2 Nd3+ Kf3 Kd5 Nf7 Kc4 Bc3 Qb2 Rh4 Nc1 Rhe4 Kd3 Re2 Rf8 h8R Nh7 Ra1 Ba2 Nf6 Bac4 Nb3 Re8 Be5 Rf8 Nd4 Rb8 Rd8 Qb1 Rd7 Rh8 Bb8 Ng7 Re1 Bb2 Rc7 Na3 Bh3 Qa2 Nc6 Nb1 Qb3+ Nc3 Nd4 Qb1 Ra4 Nh5 R1e4 Qa2 Rh4 Qb1 Bg2 Ba3 Rh2 Qa2 Rc5 Qc2 Rce5 Bd5+ Kf2 Bf3 Qa2 Be2 Qd5 Bf1 Kf3 N3a2 Re2 Qb2 Nb3+ Kc2 d3+ Kc3 Re1 Qc2 Nd4 Kd2 R1e2+
1n1nKb2/4RnQb/N1kP4/3B1r2/q2n4/1bR3qP/1b2BBpq/R1r1RN2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 c5 b4 f5 d4 g5 e5 a5 h3 f3 Ke3 a4 b6 f4+ Ke4 a3 Kf5 c3 Kg6 f2 Kf7 c4 b5 c2 b7 a2 d5 g3 b6 g2 d6 c3 e6+ Kc6 e7 f3 e8B+ Qd7+ Kg6 g4 Na3 g3 Bf4 c1N Rb1 a1N Bf7 c2 Qe1 Na2 B1c4 f1Q Qe7 c1B Rb4 f2 Rb3 Qe2 Be3 f1B Rc3 Bb2 Bf2 Nc2 Nf3 g1Q Nd2 Ra5 Nb5 Nab4 Nc7 Nd4 Na6 Nh6 Be8 g2 Qg7 Qf3 Be2+ Rc5 Bf7 Qh2 Bfc4 Nf7 Rg1 Qe8 Rh1 Be6 Rg1 Nd7 b8R Rhh5 b7 Rhf5 Ra8 Bd5 b8R Qfg3+ Bg4 Be4 Rb7 Nb8 Re7 Bc2 Raa7 Bfd3 Rge1 Bb3 Nf1 Qd7 Ra8 Qa7 Nc7 Qa4 Na6 Kb6 Raa7 Nb4c6 Ra8 Ncd8 Raa7 Qh4 Be2 Q4g3+ Kh7 Rf3+ Kg8 Bb1 Be6 Be4 Re3 Qa2 Nb4 Rc1 Rc3 Ne5 B6c4 Bg6 Ra4 Rf5 Na6 Kc6 Ra5 Qa3 Ra4 Qb4 Ra1 Qa4 Qf6 Bg7 Qg5 Nef7 Qg4 Bh8 Kf8 Bh7 Ke8 Bg7 Qg6 Bf8 Qg4 Qa5 Qg7 Qa4 Bd5+
nN1KB1nb/4r3/1N1pQ2r/2rB4/R2R1B2/q1n1BnPb/1Pbrk2q/2N5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 a5 c3 h5 g3 f5 b6 a4 Kb5 d6 c4 d3 c5 Kd4 e5 f3 e6 f4 e7 f2 e8N h3 b7 d2 c6 Ke3 c7 f3 Kb6 a3 Bc4 f1N Ba2 h2 Nf6 h4 Bd5 a2 Qc2 f2 Nc3 h3 Bc6 Bf5 Nb1 Nd7+ Kb5 Rh5 b8B Ra7 c8B Nb6 Nd7 Na8 Bd5 Bg7 Kc6 Bh8 Bf7 Qa5 Nc3 Qa3 Qa4 Bc2 Nd5+ Kd3 Qf4 d1N Qh6 Nd2 Be8 f1B Bb7 Nc3 Qe6 Nf3 Ne2 Rh6 Rg1 h1Q Bf4 h2 N5b6 Bh3 Rgf1 Ra5 Ba7 Rb5 Nb8 Rc5+ Kd7 Rh7+ Kd8 Re7 Rae1 a1R Bd5 Rd1 Rg1 Rd2 Ra1 Qg2 Rgd1 h1R Ra2 Qh2 Nc1+ Kd4 Be5+ Ke3 Bf4+ Kf2 Ra1 Re1 Ra2 Re5 Ra1 Rh5 Ra2 Rh6 Ra1 Re2 Rd4 Rd2 Ra2 Qb4 Ra6 Qa3 Raa4 Rf6 Re4 Rc6 Nc4+ Kf1 Bg1 Rc5 Nb6 Rh6 Bge3 Ke1 Red4 Kf1 Nd3 Ke2 Nc1+
2B1B3/n1br2nq/1Nbp3P/kRbq1bB1/3qR2P/2n5/1K2NqQ1/4B1Rr b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Kd2 b5 c4 g5 Kc2 e5 a4 d3+ Kb3 e3 f4 e4 c5 g4 a5 g3 f5 g2 f6 d2 c6 e2 c7 e1B a6 e3 a7 e2 h3 Ne7 Ra2 Bg3 Ra4 e1Q Bc4 Nf5 Bd5 Qf2 Qf1 d1N Nd2 Bb7 c8B Bc7 Be6 Bc6 Ka2 b3+ Ka1 b2+ Ka2 b1B+ Kb3 b4 Ra6 Nc3 Ra1 Ng7 Ra4 Bf5 Ne2 g1Q Nc4 Bc5 Kb2 b3 f7+ Ke7 Nb6 Kd6 Qg2 Qd1 Bc4 Qd5 Bb5 Qf6 Re4 Q6d4 Bg5 Rh7 Kc1 b2+ Kc2 Rh8 Rg1 Rh6 Bd3 Rh7 h6 b1Q+ Kd2 Na6 h4 Nb4 Bb7 Re8 a8R Re6 Ra5 Rg6 Be3 Rg3 Bc8 Rh3 Bg5 Rh1 Rb5 Bb8 f8B+ Kc7 Bfe7 d6 Bd7 Kb7 Bef6 Ka6 Be8 Bc7 Be5 Bb7 Bg3 Nc6 Na8 Na7 Nb6 Qbf1 Kc2 Bc6 Kb2 Q1e1 Rb4+ Ka5 Ba6 Qed1 Bc8 Q1d3 B5f4 Ne6 Bd2 Rd7 Bg5 Ng7 Rb3 Qff3 Be1 Qff2 Re3 Q3e4 Rb4 Qe7 Re4 Qef7 Rb3 Qg8 Rb4 Qh7 Rb5+
NqqN1n1q/qR2n2r/2p3bP/P1B3bk/1QRb2r1/nR2N3/5N2/2b2K1B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 g5 h4 b5 a4 f5 e4 Kf7 a5 Kg6 e5 b3 d6 b2 e6 c6 d5 f3 e7 f2+ Ke2 g3 e8N b4 d7 b3 d6 g4 Nf6 f4 Bg2 f1Q+ Kd2 f3 Ra3 f2 Nd5 Qa6 Ke3 f1Q Bf3 g2 Nh3 g1B+ Kd2 g3 Ndc3 g2 Bd5 Qf7 Ke1 Bd4 Nb5 g1B N1c3 b1Q Nc7 b2 Rb3 Be7 Be3 Rh7 Nf2 Bg5 h5+ Kh6 Rh2 Ne7 Rh4 Qh8 d8N Nd7 Bh1 Nf8 N3d5 Bf5 d7 Qc8 Kf1 Bg6 Qe1 Bh2 Rg4 Bhf4 Rh4 Rb8 Na8 Rb4 Rg4 Qa1 Rh4 b1N Qc3 Rc4 Qb4 Qb2 Rg4 Na3 Rh4 Bb6 Bc5 Bc1 Ne3 Qbe5 Rd4 Qeb8 Rf4 Qfg7 Rf7 Rg4 Rf4 Bf6 Rc4 Kg5 h6 Kh5 Nb7 Ba7 d8R Bg5 Rd7 Bb6 Nd8 Qd4 Rb7 Qdd7 Bd6 Bd4 Bc5 Qdc7 Rb5 Qca7 Rb7
2nRb1R1/1rnq4/PBNb1Bn1/4RB2/qPnr1Q2/2b2kr1/4rp2/1N2RK2 b - - 0 1 illegal: No proof kernel
5qb1/R3Q2p/2k1b2P/2Br2N1/rbbN1B1K/B2rB2P/1RN1n3/2qq1n1r b - - 0 1 illegal: No proof kernel
Bb3KR1/B1n3pP/1q1k1R1r/2b3N1/3B2bP/1B1q4/1Qn1qRnN/2qr3b b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 Ke2 b5 h4 d5 f4 Kd7 a4 e5 c4 d3+ Ke3 b3 c5 b2 f5 d4+ Kd2 e3+ Ke1 d2+ Ke2 e4 a5 b4 f6 b3 f7 Na6 c6+ Kd6 h6 Nb4 c7 Bb7 c8R Ne7 a6 Qb6 a7 Nc2 Nh3 Nd5 Rh2 Nc7 Rf2 Rb8 Re8 Rd8 a8B Rh7 Qe1 d1N Nd2 b1Q Ra2 b2 Nf3 Qa1 Bd2 Qc1 Bc3 b1Q Ra6 Be7 f8B Rd7 Bg2 d3+ Kf1 d2 Ke2 Rh8 Bd4 Rh7 Nhg5 Rd8 Kf1 e2+ Kg1 e3 Kh2 Qb5 Kh3 Qd3 Kg4 Be4 Qf1 e1Q Kh5 e2 Nh2 Nde3 Bf3 d1B Qg2 Bc6 Bd5 Qed2 Bb3 e1B+ Qf3 Rd7 Qe2 Bh1 Rc8 Ng2 Rb8 Q3e3 Kg6 Qdd3+ Kf7 Ba5 Qd2 Bg4 Qc3 Qee2 Qb2 Bd2 Rc8 Bf4 Re8 Rd8 Kg8 Kd7 Kf7 Ba3 Bfc5 Rh8 Rg8 Bg3 Be7 Bc5 Bef6 Kd6 Be3 Re8 Bfd4 Re6 h7 Rh6 Rb8 Re8 Rc8 Re5 Rg8 Rd5 Kf8 Qb5 Bf6 Rd1 Bfd4 Qbd3 Ra7 Na6 Raf7 Nc7 R7f6+ Ne6+ Ke8 Qd8+ Kf7 Kc7 Rf8 Bb4 Ba7 Bc5 Bbd5 Qb8 Bc4 Qb6 Bb3 Kd7 Rc8 Bb8 Rg8 Kc7 Bd4 Kd6 R6f3 Nc7 Kf8 Na6 Rf4 Nc7 Rf6+
1bn1NB2/nrRqP1q1/Q3R1k1/1PNB2q1/q4p2/1bnB4/B1rn4/K5Nr b - - 0 1 illegal: No possible last move, all moves rejected
N1r2Bq1/BR1bP1Pq/7N/2nb1rBq/7k/1pr1n1qB/2Q2rR1/N3K1b1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 d4 Ke7 e4 Kf6 g4 Kg5 a4 c5 d6 h5 d5 b5 e5 f5 d7 h3 a5 c4 a6 c3 a7 c2 e6 h2 d6 b3 Nh3+ Kh4 g5 b2 g6 f3 g7 f4 Qd4 b4 Bd3 b3 Bf5 f2+ Kf1 Nh6 Ra4 Na6 Rb4 Nc5 Na3 b1Q Qd5 Ng4 Qc6 Ne3+ Ke2 f1R Bd3 Rf2+ Ke1 Rg8 Rb8 f3 Rg1 h1Q Ng5 Qh3 Qc7 Qg3 Rg2 Be7 Bf1 Rf8 Qc6 Rf5 Nf7 Qg8 d8B Bd7 Rb7 Rc8 Bb6 Bd8 a8N Bc7 Ba5 Bb6 Bb4 Ba7 Nh6 Bb6 Be2 Ba7 Bd1 Bb6 Bcd2 c1R Nc2 Ba7 Na1 Rc3 Bc1 Qe4 Bc2 Qeg4 Qc7 Qg6 Bd3 Q6h7 Bf1 Na4 Qa5 Rb2+ Rf2 Nc2+ Kd1 Bc6 Bd3 Kh3 Bc4 h4 Re2 f2 d7 f1B d8B Bfg2 Bf8 Bd7 e7 Bd5 Bf4 Bg1 Bb6 Nc5 Ba7 Ra2 Rf2 Ne3+ Ke1 Rac2 Qa2 Rb2 Nf7 Kg4 Qb1 h3 Bf1 h2 Nh6+ Kh5 Bg2 h1Q Bf1 Qhf3 Bh3 Kh4 Qa2 Rd2 Qb2 Qh5 Qc2 Qgg6 Rh2 Rf2 Rg2 Qg3 Bg5+
1q3R1b/b2Pp1qQ/K2nq1nn/1NB2krR/1P6/1RR1n3/B4r2/Nq1B3b b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 b4 Ke6 g4 h5 f4 a5 d4 c5 b6 e3 b7 h3 g5 h4 d5+ Kf5 g6 h2 g7 a4 d6 h3 d7 a3 Nd2 a2 Rb1 a1N Rb2 c3 Kd3 e2 Kc4 e1Q Kb5 c2 Ne4 c4 Qd3 c3 Nf3 Ra5+ Kc4 Nh6 g8B Bg7 Be3 c1Q Bd2 c2 Ne5 Qb1 Qa3 c1B Nf3 Nc6 b8R Nc2 Nc5 Bb7 Rb3 Ba8 Rb7 Qb8 Be3 Bf6 Bg1 Be3 Rc7 Bb2 Bd5 Rf8 Be2 Bh8 Bd1 Qb2 Qa1 Qg7 Qb1 Bd4 Rc8 Qe6 Be3 Rg8 Bf2 Ra2 Bg1 Bb7 Kb5 Ne5 Be3 Ng6 Rc7 Kg4 f5 Rb2 f6 Kf5 f7 Ba8+ Nb7 Ba7 Rcc3 Ra2 Nd2 Rb2 Rg1 h1N Bc5 Nf2 Rh1 h2 Bc4 Ne4 f8R+ Qgf6 Ka5 Nd6 Ka6 Rg7 Rg1 h1Q Rg5+ Kf4 Rh5 Ne3 Na5 Bg2 Nf3 Rf2 Nd4 Qe1 Nb5 Bh1 Ra3 Qg1 Ba2 Qff7 Nb3 Rg8 Rc8 Qg7 Na1 Qf1 Rab3 Qd3 Qb2 Qb1 Qa3 Rf8 Rd8 Rf5 Rf8 Ke4 Qa5 Rg5 Qd8 Ke5 Qe8 Ke4 Qf7 Ke5 Qg8 Ke4 Qh7 Ke5 Rd8 Kf5 Rf8+
bKn2r1B/1BPqrR1n/2q1N2k/3n1N2/2bp4/6b1/1BPR2Qq/1b2NnN1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 g5 e4 f5 h4 Kf7 a4 Kg6 c6 d5 e5 b5 e6 d4 a5 g3+ Kf3 b3 h5+ Kh6 c7 b2 a6 g4+ Kg2 b4 e7 b3 e8N Qd7 a7 Ne7 Bd2 Rh7 Be3 Bb7+ Nf3 Nc8 Qd2 Bd6 Rh2 Re7 Nc3 b1N Ba6 b2 Ne2 Nc3 Ng7 b1B Ne6 Nd5 Ne1 Qc6 Ra5 Nd7 Ng1 Nf8 Ra3 Rb8 a8N Nh7 Nb6 Ba8 Nc4 Be5 Nd6 Qd7 Kf1 g2+ Ke2 g3 Kf3 Qc6 Bb7 Qd7 Nh3 g1Q Qg2 Qh1 Rb3 Qa4 Ng1 Qd7 Rh3 Qh2 Bc1 Qh1 Rd3 Qh2 Qf2 g2 Bb2 Qc6 Rd2 Qd7 Ne2 g1Q Qg2 Qgh1 Ng1 Bg7 Ke2 f3+ Kd3 f4 Kc4 f2 Kc5 f1B Rf3 Bc4 Rff2 f3 Rf1 Qd8 Kc6 Be5 Rff2 Bf4 Rf1 Bg3 Rff2 Nhf6 Rf1 f2 Nf5+ Kh7 h6 Qd7+ Kc5 Kg6 h7 Kh5 h8B Nh7 Nef3 Qd8 Kc6 Kg6 Rfd1 f1N Ne1 Kh5 Rf2 Kg6 Rdd2 Kh5 Nfg7+ Kh6 Rf7 Qd7+ Kc5 Ncb6 Qe4 Rf8 Qf3 Ndf6 Nf5+ Kg6 Qf2 Qe4 Qg2 Qec6+ Kb4 Nfd5+ Ka5 Bb3 Ka6 Bc4+ Ka7 Nc8+ Kb8 Kh5 Nfg7+ Kh6 Nf5+
Rrb2rQ1/2p4N/PN2N3/2qB1n1n/1b4k1/1KP1rqr1/n1Nq1n2/BR2R3 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b3 e5 b4 axb4 dxe5 f5 Ba3 fxe4 Bb2 Be7 Bc1 Bf8 Kd2 Kf7 f4 Ke6 g4 h5 a4 d5 g5 Kf5 c3 b5 Kc2 e3 g6 b3+ Kb2 h3 a5 d4 g7 h2 a6 h4 e6 d3 e7 h3 e8R e2 Bd2 e1R Ne2 b4 Ra3 Nc6 Be3 d2 Re5+ Kg4 f5 Rb8 f6 Nge7 g8N Nf5 Qc2 d1Q f7 Q8d2 Nd4 Qf3 Bg2 Bc5 Bh6 Re3 Ne7 Rf8 Re1 h1N Ra1 h2 Na3 Nhg3 Rab1 h1N Nd5 Nf2 Re8 Nh5 Ne6 Be7 Nb6 Bd6 Ka1 b2+ Ka2 Be7 Qb3 Bc5 Ra1 b1R+ Nc2 Rd1 Qd5 b3+ Kb2 Bd6 Rb1 Nb4 Ka3 b2 Kb3 Na2 Bh1 Rg8 f8N Bb4 Nh7 Rf8 Qa8 Qde2 Bg5 Rdd3 Be7 Qd2 Rd8 Ba5 Ba3 Bb4 Bg2 Qg3 Bd5 Qf3 Ra1 b1Q+ Bb2 Qbc1 Rb1 Qcd1 Ba1 Q1e2 Bc4 Qd5 Re8 Qc5 Qg2+ Rg3 Bd5 Qf3 Rd8 Bd7 Rc8 Re3 Re8 Rb7 Ra8 Bc8 Qg1 Rb8 Rf1 Kh3 Rbc1 Rg4 Rfe1 Rgg8 Qg6 Rg7 Qf7 Rg3 Rb1 Kg4 Qg8+
2Q3q1/NPK1nkB1/1N1r4/3rq2b/5qBp/2bRR3/br2P1Nb/2NB1qn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 a5 Kc4 f5 Kd5 d3 c4 h3 g4 d2 b4 h2 b6 h4 b7 a4 c5 a3 b5 a2 b6 f3 g5 f2 c6 f4 c7 f3 g6 Ra6 g7 Kf7 Na3 Ne7+ Kd6 Nbc6 g8N Ne5 Bh3 f1Q b8N f2 Nc6 Nf3 Qc2 d1B Bg4 Rh7 Nh3 Ng1 Qc3 Bb3 Nf4 Bc4 Rb1 a1B Nd3 Ba2 Nf6 Rh6 b7 Rb6 Qc5 Bc3 Nc4 Rb2 Na7 Bg7 Bf5 Qg8 Nb6 Rh5 Be3 Bh6 Bd4 Bf4+ Be5 Qc1 Be4 f1Q Ng4 Bg3 Qc6 Qcf4 Ne3 Rf5 Ng2 Rf6+ Kc5 d5 Nc1 d4 Bc2 d3 Bd1 Rd6 Bg7 Bg4 c8B Bh5 Bg4 d2 Qc8 Qe5+ Nd5 Qff4 Ra1 Bb1 Ra3 Ba2 Rb3 Ba5 Re3 Bc3 Ba4 d1R Bc2 Rd3 Bd1 Nf3 Rf1 Ng1 Rff3 Rd4 Rd3 h1Q Rfe3 Bh2 Bb3 Rd7 Kb6 Rd6+ Kc7 Bd2 Nf6+ R4d5 Nd7 Ba5+ Nb6 Bc3 Ne1 Qg2 Bd1 Qgf1 Ng2
r2kbbb1/n1QBN1r1/r7/5pB1/b1R1b1rP/B3N1RR/KnPb1q2/2B5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 f5 h4 a5 b4 g5 e4 d5 b6 d3 Kc3 d4+ Kb2 g3 b7 g2 e5 f3 b5 g4 b6 g3 e6 f2 e7 a4 Nf3 g1R Bh3 f1B Be3 a3+ Ka2 g2 Kb3 a2 Na3 d2 Kb2 d3 Bf4 Nf6 Ne5 Bd7 Rb1 a1R Nf3 Ng4 Nc4 Ne3 Qc1 d1B Nd4 d2 Nc6 Bf3 Bg5 d1B Qd2 R1a6 Qa5 Qc7 Ka2 Rh7 Rb3 Rg7 Bg4 Bf1e2 Rh3 Be4 Bf3 Qg3 Ra3 Bf1 Qe5 Qf2 Qc7 Bde2 Rg3 Nd1 Ne3 Bb5 Ra4 Kf7 e8R Nb2 Ne7 Nc6 b8B Na7 b7 Bdc6 Ra3 Ba4 Rc8 Be8 Be2 Ke6 Bb5 Bc4+ Rb3 Kf7 Bd7 Bcd5 Qb6 Bc4 Bd6 Bcd5 b8B Bc4 Bgf4 Kf6 Qa5 Bg8 Ba3 Rg4 Bg5+ Kf7 Bb5 Ke6 Rc6+ Kd7 Rc7+ Kd8 Bd7 Re1 Qc3 g1B Rc4 Bh2 Bbf4 Rg1 Nd1 Rg2 Bc1 Rg1 Rh3 Bf4 Qe5 Bd2 Rbg3 Rg2 Ne3 Rg1 Bf4 Rg7 Bg5 Rg2 Rf3 Rg4 Rfg3 Qe1 Qc5 Qf2 Qc7#
k1r2n2/b2b2nN/6P1/3P1R1N/QR1R1nnK/nrBNq2B/pr3r2/2R3n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 f5 b4 c5 d4 Kc7 e4 Kb7 g5 a5 d5 h5 b6 a4 g6 c3 b5 c2 e5 h3 e6 h4 e7 a3 e8R h2 Re3 h3 Re1 c4 Qd3 c3 Ne2 f3 Kg3 f2 Bg5 c1N Qd1 a2 Bf6 c2 Be5 f4+ Kf3 Nd7 Kg4 f3 Nd2 Ngf6+ Kg3 Ra3 Bf4 Nd3 Nc3 c1N Re7 Nh5+ Kg4 Qe8 Qa4 Ne2 Be3 Ng1 Bf4 Rb3 Nce4 Ng7 Re5 Bc5 Rd1 Nf8+ Rf5 Bd7 Ng5 Qe3 Be5 Nf4 Bc3 Rb2 Bg2 f1R Nb3 f2 Rd4 Kb8 b7 Ba7 Nh7 Rfb1 Ba5 f1N Kh4 Nd2 Nc5 Nc4 Bc3 Na3 Nd3 Rf2 Bf1 Rbb2 Bg2 N8e6 Bf1 Rc8 Bg2 Nf8 Bf1 Kc7 b8N Kb7 b6 Ka8 Bg2 Nge2 Re1 h1R Rc1 h2 Bh3 Rg1 Rf6 h1N Rf5 Be8 Nd7 Rg3 Ndf6 Ng1 Nh5 Bd7 Rb4 Rff3 Rc4 Nf2 Rd4 Ng4 b7+ Kb8 Qb5 Rff2 Qb4 Rgg2 Qa4 Rb3 Qc6 Rfb2 Qa4 Rgf2 Qc4 Bc5 Qb5 Ka7 b8R Bb6 Rb7+ Ka8 Qa4+ Ba7 Rbb4
b2nR3/5R2/n1rb1PR1/r1Qbn1Nk/P2N2q1/1p1n2b1/2B1nB1n/3K1B1B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 Kf7 g4 d5 f4 h5 a4 b5 f6 Kg6 f7 e5 g5 b3 c5 b4 c6 h3 c7 b2 Na3 b1N Bb2 h4 Qf3 b3 Qe3 d3 f5+ Kh5 g6 d2+ Ke2 d1N g7 e4 f6 h2 Bc1 d4 Ra2 h3 Bg2 d3+ Ke1 d2+ Ke2 Qd4 Qd3 e3 Bc6 Nf2 Bb2 d1N Qe4 Nh6 g8B Nd3 Bd5 Nd2 Be6 Na6 Bd5 Bb7 c8B Ne5 Ke1 e2 Nf3 Nf1 Bh7 Bd6 f8R Nf2 Qb1 Nhf7 Qc2 Nd8 Rg1 h1B Rg6 h2 Bh3 Qg4 Ng5 Rg8 Be4 Bd5 Qc5 Rc8 Bf3 Rc6 Bd4 Bg2 Be3 h1N Nb5 Nh2 Nd4 Ng3 Rf7 Nfd3+ Kd2 e1B+ Kd1 Rg7 Bf2 Ne2 Rc2 Bh1 Bf1 Rg8 Rc4 Re8 Rb4 Re7 Rb8 Ra7 Be3 Bg3 Bf2 Rb7 Rc8 Rb5 B3g2 Ra5 Ra8 Ne6 Re8 Nd8 Bh3 Bhe4 Bhg2 Bf5 Bh1 Bc8 Rgg8 Bb7 Bf5 Ba8 Rg6 Ne1 Bb1 N1d3 Bc2
n1nRQk2/2rB4/1bP3K1/1R2Rp1B/1rNP2bN/2Br1n2/4nqr1/3Rr1r1 b - - 0 1 illegal: No possible last move, all moves rejected
nr1rNrr1/1b5b/1P2r2q/NR5P/1Bn1B1N1/B1rQ2bp/1RN1K1k1/7b b - - 0 1 illegal: No possible last move, all moves rejected
2b2bnq/b2B1pn1/1B2N1b1/rr3rRB/2r1Q3/Prr5/kB1N1RPR/5K2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Ke7 d4 Kd6 a3 h5 Kf2 c5 Qb3 b5 Nc3 c4 Rh3 f3 Na4 c3 Bb2 c2 Qc4 c1B Qc3 b3 Ra2 b4 Rh2 h3 Qc4 h4 Qd3 Be3+ Ke1 f2+ Ke2 Rh5 Qc3 Ra5 Qc4 Nc6 Qd3 Nce7 Nc3 Nf5 Rh1 h2 Nh3 Ng7 Ng5 h3 Ne6 Qh4 Qc4 Rf5 Qd3 Qh8 Nb1 Rf4 Nd2 Rh4 Rg1 h1R Qc2 h2 e5+ Kd7 d6 Re4 d5 Ba7+ Kd1 Rc4 Be2 f1B Bf3 Bd3 Ke1 Bg6 Qe4 Rc3 Rf1 Rg1 Bg4 h1R Bh5 Rh4 Ke2 Rgh1 Rf5 Rf1 Rg5 Rf5 Ke1 Rhh3 Ke2 Rc4 Ke1 Rhc3 Ke2 Ke8 d7+ Ke7 d8B+ Kd7 Bb6 Ke7 Bc1 b2 d6+ Kd7 Ke1 b1R Ke2 Rbb3 Bb2 Rd5 Ke1 Kc6 d7 Kb5 d8R Ka4 Rd6 Ra5 Rd3 Rcc5 Rh3 R3c4 Rh1 Rcb5 Rh2 Rbc3 Nd4 b3 e6 Ba6 e7 Bc8 Bc1 b2 e8B b1R Bd7 Rbb3 Ne6 Rd3 Bb2 Rbc3 Nf3 Kb3 Kf1 Re3 Bc1 Red3 Rf2 Re3 Nd2+ Ka2 Bb2 Rcb3 Nd8 Rec3 Ne6
BnRB2Br/3PN3/5P1R/bp6/1qr1r3/bnNkNbB1/5b1K/1r2bbQ1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 f4 Kf7 Kf2 Kg6 a4 Kf5 d4 h5 a5 b5 d6 e5 a6 c5 d5 h3 Kg3 e3 d7 Ke4 d6 h2 f5 h4+ Kh3 e2 g4 e1B f6 b3 a7 c4 g5 c3 g6 c2 g7 b2 Bc4 Qa5 Kg2 h3+ Kf1 Ne7 g8B Nec6 d8B Nd4 Ba2 Nb3 Be3 c1B Bg5 Be3 Ne2 B3f2 Nf4 Qb4 Bh6 Bd2 Nd5 Kd3 Ne7 e4 Qg4 e3 Nc3 b1R+ Qd1 Bg4 d7 Bf3 Bf4 Rh4 Bg3 Re4 Ng6 Bd6 Ne7 Rc1 Rb1 Rc2 Rc1 Bc5 Rg1 h1R Bd5 h2 Bg8 Be2+ Kg2 Bf3+ Kh3 e2 Qe1 Na1 Bad5 Nb3 Rg2 Bd6 Qg1 e1B Bb7 Be2 Bc6 Bf1 Bb7 Na6 Bc6 Rc8 a8N Nb8 Nb6 Rb2 Rc2 Rb1 Ba8 Rcc4 Rc1 Bc7 Rc2 Bc1 Nbd5 Ba3 Ne3 Ba5 Bgc7 Be2 Rg6 Bf1+ Qg2 Rg1 Rh6 h1B Rc1 Red4 Kh2 Re4 Qg7 Bf3 Rc2 Rg5 Rc1 Rgc5 Qg1 Rg5 Be5 Rg7 Bec7 Rh7 Bg3 Rh8 Na2 Rcd4 Rc8 Rc4 Nc3
3K2R1/B5n1/P1Rn1kB1/1b3N2/b2rN3/Q1BqpB1P/1N3br1/rrn1b2n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 e5 Ke4 d5+ Kd3 b5 c4 g5 f4 b3 a4 b2 c5 g3 c6 g4 h3 e4+ Kc2 g2 Kb3 g3 c7 d3 a5 d4 f6 b4 Ka4 e3 Kb5 b3 Kb6 d2 f5 d3 a6 Bd7 Qf3 d1N Ra3 d2 Nc3 b1R Bb2 Ne7 Be2 Bb5 Na4 Rg8 Bc3 Nf2 Nb2 Qd3 c8B d1B Kc7 Nd7 Kd8 Ra1 Qg4 Bc2 Nf3 g1B Qb4 g2 Nd4 Nc5 Bf3 Nce4 Ra5 Rg4 Qa3 Nd6 Ra4 Ra7 Rc4 Rg3 Rh2 Nh1 Rc6 Bf2 Bb7 g1N Rg2 Ne2 Bh5+ Kg8 f7+ Kg7 Bg6 Kf6 Rg1 Bg7 f8N Nc1 Nfe6 Rg2 Ng5 Bf8 Rc5 Bd1 Bf3 Rc7 Rc6 Bc2 Rb6 Rc4 Rc6 Rb4 Nde6+ Rd4 Ng7 Ke5 f6 Nef5 f7 Kf6 Kc7 Be7 f8B Bd8+ Kd7 Ba5 Ne4+ Ke5 Nh5 Ng7 Nhg3 Bb4 Kd8 Ke6 Nc4 b2 Nf5 b1R Nb2 Bb3 Be7 B3a4 Bf6 Rc4 Bcd4 Bbe1 Ba7 Rb4 Bc3 Rd4 Bd2 Rh2 Rg4 Rg2 Bc3 Ke5 Rh4 Ke6 Rh8 Ke5 Rg8 Ke6 Nd2 Kf6 Ne4+
B1bN3b/Bb4Rq/2n1b1b1/1r1R2rP/1N2N3/1bk3p1/6PB/brqQK1B1 b - - 0 1 illegal: No proof kernel
1n5K/1B3qBR/k1q1pNq1/1R1qPBR1/2r2q2/b1nrB2P/n3r2N/Q2r4 b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 h5 Ba3 a5 Bc1 axb4 f3 hxg4 Na3 g3 Nb1 g2 Qb3 g5 Qd1 g4 Na3 g3 Nb1 Bg4 fxg4 Qd3 Nf3 Qd7 Ng1 Qd8 e4 Kd7 Ke2 Kc6 Ke3 Kb6 Kf4 c5 Kg5 f5 Kg6 f4 a4 e6 d4 b3 a5+ Ka6 g5 b5 h3 b2 e5 c3 d5 c2 d6 c4 d7 c3 Qe1 f3 Bc4 f2 Bd3 f1Q Be3 c1N Qf2 c2 Be2 Na2 Kf7 c1R g6 Rc4 g7 b4 Nd2 b1R Ne4 b3 Nf6 b2 Qe1 Ba3 Bg4 Rd1 Bf5 b1Q Nf3 g1Q Nh2 Ne7 g8R g2 Rg5 Qf4 Kg7 Qc1 Qc3 Qe8 d8B Nd5 Rb1 Rd3 Rb7 Qgd1 Qa1 g1Q Rb5 Qgg3 Rf1 Ndc3 Be7 Qdf3 Bf8 Qd5 Rf3 Rh4 Kg8 Qg6+ Bg7 Qf2 Rfg3 Rg4 Kh8 Ra7 Rh5 Rd7 Rh7 Rh4 Rg5 Rg4 Bh6 Rg2 Bf8 Qff1 Bg7 Re2 Rc5 Kb7 a6+ Kb6 a7 Ka6 a8B Qc2 Bc1 Qa4 Be3 Qac6 Rb5 Q1f3 Qf1 Qfh5 Qh1 Qf7 Qf1 Qhg6 Qa1 Rb7 Rc5 Rb1 Rb5 Rbd1 Bb7+
k2b1BN1/4r3/1bNRn1n1/1p2rb2/3B1b1R/2Pn1B1R/1Pr5/2QKRrrb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 c5 f5 cxd4 f6 Qb6 a5 exf6 axb6 f5 Bg2 f4 Bh3 Ne7 Bf1 Ng8 h4 Kd8 e4 a5 b7 Kc7 c3 g5 e5 f5 e6 d5 h5 g3 e7 f3 e8R f4 h6 a4 h7 a3 Ra2 f2+ Ke2 d3+ Kd2 f3 Qb3 g4 Ra1 d4 Rh2 a2 Re3 g2 Re6 g3 Ra6 Nd7 b8B+ Kb7 Ba7 Nc5 Rf6 Ne6 Qb4 Be7 Rh1 Bd8 Nh3 g1B Qc4 g2 Ng5 Bh2 Bb8 g1B Be5 Ra7 Be2 f1B Qa4 f2 Nf3 Ne7 Ne1 Re8 h8R Ka8 Rhf8 Bf4+ Kd1 d2 Bd6 Bg2 Rh4 f1R Rfh8 Bh1 Qc2 Ng6 Bf8 Rae7 Bh5 Rf2 Nd3 Rg2 Ne5 Bf2 Ke2 d1R Nc6 Rdg1 Be3 d3+ Kd2 Rf1 Bf3 Rh2 Qd1 Rg2 Kc1 d2+ Kc2 Bd7 Qc1 d1N Bd4 B2e3+ Nd2 Nf2 Rb1 a1R Ne4 Rgg1 Rh3 Nd3 R8h4 Bc8 Qe1 Rf2+ Kd1 Rc2 Qf1 Bfc7 Rc1 Bef4 Qe1 Bb6 Qf1 Nc7 Rd6 Bf5 Nf6 Re5 Qe1 Ne6 Ng8 Re7 Qf1 Ne1 Qd3 Bg3 Qd2 Rc5 Ke2 Bf4 Rd1 Nd3 Rb1 Rcc1 Qe3 Re5 Kd2 Rcf1 Re1 Rc1 Ke2 Rc2+ Kd1 Nc1 Qd2 Nd3 Qc1
2Kb4/2NpPr1r/4B1bR/1R1q1nq1/bN4b1/BbqP4/1QB1B1q1/2N1b2k b - - 0 1 illegal: No possible last move
2B1Bb2/1n1R4/K2b1RqP/1n4p1/N1k3Pb/1q1rr1p1/1R2Q1n1/Rrq1N1B1 b - - 0 1 illegal: No proof kernel
N1R5/1nnr4/1N1Nqpp1/1QR2rqq/1P1nb3/3b3k/PrR4N/2BBK1b1 b - - 0 1 illegal: No proof kernel
R7/Rrq1bnKb/4P1p1/1qBn2nr/2P1N1Qb/k2B1R2/4pq2/2NrN2R b - - 0 1 illegal: No possible last move
1Qn1Bnb1/b3pP1r/N1p2nBR/N1q1r1Nq/1Br3P1/4k3/1K2RNb1/6q1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 d4 Kf7 Kd2 Kf6 Kc2 Kf5 f4 b5 a4 h5 g3 e3 d6 Ke4 a5 e2 g4 e1R f5 c6 a6 b3+ Kb2 h3 d7 h4 f6 b4 d5 h2 d6 h3 a7 Qb6 d8N Nd7 Bb5 Bg7 Ra5 Qc5 Nf7 Nf8 d7 Rh7 d8N Be6 Nd2+ Ke3 Nb7 Rd8 a8B Rd4 Ra7 Rc4 Ng5 Bd5 Ra2 Re2 Kb1 b2 Na5 Bg2 f7 Bd4 Bb7 Nf6 Bc8 Re1 Ra4 Re2 Ka2 b1N Ba3 Nc3+ Kb2 b3 Bd7 Re1 Be8 Ncd5+ Kb1 b2 Nde4 Nb6 Bb4 Re2 Ra2 Nc8 Ba4 Re1 Bc2 Re2 N1f3 Re1 Nf2 Re2 Bg6 Re1 Rf1 h1Q Nge4 h2 Nfg5 Re2 Qa4 Qg1 Qb5 h1Q Qb8 Qh5 Rd1 Qd6 Rf1 Ba7 Nc5 Qe5 Na6 Qc5 Bc3 Re1+ Kc2 b1B+ Kb2 Rd1 Bb4 Rd5 Rd1 Re5 Rd6 Rd5 Be4 N6d7 Re6 Rg7 Bf5+ Re5 Rh6 Nf6 Ra1 Bbe4 Rd1 Bc2 Rd2 Bd3 Be6 Bh7 Bf5 Bg8 Bg6 Rh7 Re2+
1Bn2n2/1rq3Nr/B1Rkpb2/n2Nb1P1/bnB1p1n1/1P1R2rB/1N2Q3/K7 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 c4 h5 Kd2 a5 Kc2 d5 f4 Kd7 g4 d3+ Kc3 d4+ Kd2 h4 f5 a3 g6 a2 g7 h3 f6 e6 g5 a4 f7 a3 c5 h2 b3 Bd6 Qe1 Rh7 Ne2 Ne7 Ng3 Ra7 Nc3 Rb7 f8N+ Kc6 Qd1 Nd7 Ng6 Nf8 Na4 Bd7 Nf4 Nc8 Ngh5 Bb8 Rg1 h1R Nb2 Rh3 Nd5 Rg3 Bh3 Bc7 g8B Bd6 Rb1 a1N Ng7 a2 Bf7 Nc2 Be8 Bb8 Qe2 Nb4 Nc4 a1B Rd1 Qa5 Bb2 Bc7 Kc1 Bd8 Bc3 Bf6 Bd2 Qd8 Bf4 Qe7 Rb2 d2+ Kb1 d3 Bb8 Qd6 Rc1 d1N Rd2 Bae5 Nb2 Ne3 Ka1 Nc4 Rc3 Na5 Rdc2 d2 Rd3 d1N Rc1 Nf2 Rc2 Kb5 c6 Nb6 c7 Ng4 Rc1 Nc8 Rcc3 Ka6 Rc5 Ba4 Bd7 Rb6 Be8 Kb7 Bb5 Qe7 Bc4 Qd8 Rb5 Kc6 Rc5+ Kd6 Rd4 Na7 c8B+ Qc7 B8a6 Nc8 Rd3 Rb7 Rc6+
r3B2n/1bR2RPn/N2p1PRQ/1k1rn1N1/1N1b1r2/1bp1N1r1/r2B3K/4q3 b - - 0 1 illegal: No proof kernel
B2rQ1K1/R1P1p1RB/1r5p/nNn1N3/1Pnbb3/3n1N2/1Bbn4/4Bqkr b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kg6 g4 a5 c4 d5 b4 h6 g5 Kf5 c5 d3 Kc3 a4 Kd4 h3 g6 e3 b6 a3 g7 d2 c6 a2 c7 e2 b7 Kg4 Ke5 Kg3 f5 Kf2 f6 e1N f7 h2 Nf3 d4 Bh3 d3 Qb3 d1N Bf1 d2 Bb2 Ne3 Qa4 d1B Qc6 Bc2 Qe8 Nf6 g8B Na6 b8N Ne4 Rg1 h1R Bg2 Bf5 Nd7 Rb8 Ng5 Rb6 Na3 Nac5 Bh7 Nd2 Ba8 Bfe4 Nb5 Qc8 Rg3 Qa6 Bc3 Rf6 Rg4 Bg7 f8B Rg8 Rg1 Bh8 Bg7 Rb6 Na7 Qf1 Nb5 Bg6 Bb2 Nec4+ Kd5 Bgd3 Bgc3 Bd4 Ne5 Bf5 Ngf7 Rf8 Rg7 Ned3 Ng5 Kg2 Bc1 Kg1 B1b2 Nf3 Be1 Nfd2 Rd1 a1N Rc1 Nab3 Ra1 Bg6 Ra7 Nce4 Nc3 Nba5 Nb5 Ned6 Ke6 Be4 Qd7 Rd8 Qe8 Nf5+ Kf7 Nfd6+ Kg8 Ndb7 Ba3 Nbc5 Bc1 Nb1 Bb2 Nbd2 Ngf3#
R1n2KB1/1PB5/1k1N1n2/1PRpQ1b1/1r2b1r1/4r2q/NB2B2p/r1Nb1nr1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 a5 g4 h5 f4 e5 b4 d5 c4 Kd7 f5 Kc7 g5 d3 Kc3 e3 g6 h3 g7 e4 Kd4 d2 Ke5 a4 c5 e2 f6 e1R c6 e3 f7 h2 Ra2 a3 Bb2 h4 Qe2 d1B Qf3 e2 Qf2 h3 Qf3 Bf5 Nc3 Rh4 Qe4 Nf6 g8B Bh6 f8B Qc8 Bd6+ Kb6 c7 Rg4 Ra1 Bh7 Na2 Nbd7+ Ke6 Rb8 Ke7 Bg5 Qe5 Be4 Rc1 Rb7 Rc5 Rb8 Nf3 Rb7 Nd4 Rb8 Rg1 h1N Nb3 h2 Nbc1 Ng3 Kf7 Nf8 Kg7 Ng6 Rh1 Ne7 Kf7 Kb7 b6 Qe6+ Kg7 Nc8 Kf8 Qf5 Rg1 Qh7 Rg2 Qh3 Rg1 Ra8 b5 Ra4 Rg2 Rb4 Rf2 Ka8 b7+ Ka7 Rf3 Kb6 Rd3 Bc2 Rd4 Rd1 Rdc4 e1R Be2 Nf1 Rc3 Rd3 R3c4 Bd1 Rd4 Rbb3 Ra4 Rb4 Ra5 Rdg3 Ra8 Rg1 Bd3 Re3 Be2 Na7 c8N+ Ka5 Ne7 Kb6 Nf5 Nc8 Bb8 Rbb3 Nc3 a2 Nd6 a1R N3a2 Rb4 Bc7+
BQ4BN/Pbn1b2p/q2n1Bp1/b7/rP3rB1/Nr4rR/1r1N2R1/n2K2k1 b - - 0 1 illegal: No proof kernel
K2Rb1k1/5Bb1/R1N4n/r1R1q3/rBN2PB1/Qpn2qnp/q1P4n/2n4R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 d5 g4 h5 f4 b5 a4 e5 a5 h3 g5 e4+ Ke2 h2 a6 e3 Kd3 h4 f6 b3 a7 b2 Qg4 e2 Bh3 e1N+ Ke2 d3+ Ke3 d2 Kd4 d1N Qg2 b4 Qf3 b3 Bf1 h3 Ke5 d4 Ra6 d3 Ne2 d2 Nd4 Bg7 Na3 b1Q Nc6 Rh5 Be2 Qa2 Nc4 Bd7 Kd5 Nh6 Ba3 Qe8 Bb4 Nd3 Qe4 Qe7 Bg4 Be8 Qe5 Qc7 Qb2 Nc1 Qa3 Kg8 Kc5 Qe5+ Kb6 Nc3 Kb7 d1Q g6 Nd7 f7+ Kh8 Ra5 Nf6 Rc5 Qf3 f8R+ Nfg8 Rf7 Nf6 Rd7 Kg8 Rd8 Rg5 Rhd1 h1N Rg1 Rc8 a8R Ng3 Ra6 Ra8 Rh1 Rh5 Rb6 Ra4 Ra6 Nf1 Ka8 Nfe4 Rg1 Neg3 Rh1 Bf6 g7 Nh2 Rdd5 Kf7 g8B+ Kf8 Ba5 Bg7 Rd8 Rg5 Bf7 Rf5 Bg6 Kg8 Bf7+ Kh7 Bc7 Qee3 Ba5 Rd5 Rb5 Qe5 Bb4 Kh8 Rbb8 Rda5 Rb5 Kh7 Rc5 Kh8 Bfh5 Kg8 Bf7+
RknnBN1r/1nRK2R1/QN2N1Np/r2P2P1/1p5b/Br1b2q1/1rq5/1r6 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 b5 Kg4 c5 Kf5 Kc7+ Ke5 f5 d4 h3 g4 h6 a4 h2 e4 b3 a5 b4 a6 b2 a7 f3 Nc3 b1R Bg2 f2 Na4 f1N Nh3 c4 Nc5 c3 Qa4 c2 Nd7 f4 Ke6 f3 e5 f2 Qa6 Nd2 Nf4 f1R Rg1 h1R Ng6 Qh4 Ba3 c1Q Ra2 Bb7 d6+ Kc8 d5 Ne7 Bh3 Rf3 g5 Qc2 Rc1 Rb2 Bg4 Rg1 Bh5 Nbc6 Raa1 Bg7 Ndf8 Rfb3 d7+ Kc7 d8R Qg3 Rd7+ Kc8 Kd6 Ne4+ Ke6 Nc5+ Kd6 Qg4 e6 Bd4 Ra2 Bf2 Raa1 Ng8 e7 Nd8 e8N Bh4 Rg7 Ne7 Nc7 Qgg2 Nce6 Qgf2 Qb5 Ba6 Qa4 Bd3 Ra2 Rb8 a8N Rb5 Qa6+ Kb8 Nb6 Ncb7+ Kd7 Nc8 Raa1 Qg3 Ra2 Qe2 Rc7 Ra5 Ne7 Qc2 Be8 Ra4 Qa5 Ncd6 Neg6 Rh1 Ra1 Ra2 Bb2 Nc8 Qb5 Rb1 Bc1 Rab2 Qc4 Ra8 Ra5 Ra2 Ba3 Ra6 Ra4 Rab2 Qb5 Ra5 Qc4 Rb5 Ra7 Rc5 Qa6 Ra5 Ra8#
1Q2nnB1/Nn2q2N/1Kbr2P1/p2b1Rp1/1BB1n1P1/2q1NR2/1n5k/rqB5 b - - 0 1 illegal: No extended proof kernel
2Qbr2R/1rqrN3/1B1B2pB/Kn4R1/1p1nR1P1/3BP3/2N2r1q/1bq1k1r1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Qb3 exf4 Qd3 h4 Qg3 hxg3 h4 Kd7 d4 Kd6 Kd2 b5 a4 c5 a5 f5 h5 g6 e3 b3 Kc3 f3 a6 f4 h6 b2 a7 g2 h7 c4 Kb4 f2 Nh3 g1R Bd3 f1R Ra6+ Nc6+ Kc3 f3 Nd2 b1R Ra3 f2 Rh2 Qc7 Nb3 Nf6 Na1 Be7 Nc2 Re8 h8R Bf5 Ra4 Rad8 a8Q Rd7 Nf4 Bd8 Qc8 Rb2 Bd2 Rfb1 R2h3 f1Q R3h5 Qe2 Rg5 Qh2 Be1 Be4 Bg3 Rbf1 Rb4 Rf2 Ra4 Nh5 Rb4 Ng7 Ra4 Nf5 Rb4 Ke7 d6+ Kf6 d5 Ke5 Ra4 Nd4 Rb4 Rf7 d7 Rbb1 d6 Rbd1 Kb2 c3+ Ka3 Rh7 Rc4 b4+ Ka4 Nb5 Nd5+ Rf4 Nd4 c2 Ne7 c1Q Nc2 Rd2 Bh4 Rff2 Bg3+ Ke6 Be5 Nfd4 Bg7 Bf5 Bh6 Ke5 Nd5 Be7 d8B Rg7 d7 Rh7 Bf1 Ke4 Be2 Bf6 Bd3+ Kf3 Be7 Rf7 Bd6 Bd8 Be4+ Ke2 Ne7 Kd1 Bd3 Rf6 Be5 Rb6 Bd6 Rb7 Rc5 Be6 Rce5 Ba2 Re4 Bb1 Ng8 Be7 d8B Bf6 Na1 Ke1 Ne7 Q7c6 Bb6 Qc7 Ng8 Bd8 Ka5 Rf7 Ne7 Rdf2 Ng8 Rd7 Ne7 Kd1 Nc2 Kd2 Na3 Ke1 Nc2+
1qR3Q1/n4br1/Kn3PN1/n3Np2/2Bpn2P/R1BB4/1b1k1r1R/3bn1qB b - - 0 1 illegal: No possible last move, all moves rejected
1n1B2KN/5rR1/r2rp3/1rrBPQR1/k1n1pBR1/1bq4P/Rq1b3N/3b4 b - - 0 1 illegal: No possible last move, all moves rejected
n1b1q3/N4B2/r2p2q1/2NRbR1q/1rN2q1P/p4Bb1/1PB1k1K1/nQ1qB3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 c4 Kf6 e4 Kg5 c5 f5 b6 a5 b7 d3 h3 a4 c6 d6 c7 g3+ Kf3 g2 e5 d2 e6 a3 e7 Qe8 Kf2 f3 h4+ Kg4 Nh3 g5 Bd3 g1B+ Kf1 f4 Qb3 f2 Qb5 Kf3 Qb3 g4 Qb6 g3 Qd4 Ra6 Qg7 Nf6 Qh6 Nd5 Qg6 Nc6 b8N Na5 Bf5 Nb6 Nc6 Nb3 Na7 Na8 Bc2 Bg7 Ng5+ Ke3 Rh3 Bh2 Ne6 Be5 Kg2 Ke2 Nc5 d1Q Nd2 Rf8 Rb1 Na1 Nc4 Rg8 Qh7 Rg4 Bd2 Qh5 Be1 f3+ Kh1 Rf4 e8B Re4 Bf7 Rg4 Na5 Rb4 Be4 Qa4 Nc4 Qe8 Rc1 Bg1 Rb1 f1Q Rd1 Qf2 Qg6 Bh2 Rd5 Qd4 Bc2 f2 Kg2 Qf4 Qh7 Bg1 Rh1 Bh2 Rf1 Qfg5 Qf5 Qgg6 Kh3 g2 Be4 Bd7 c8B g1Q Bc2 Q1g5 Bb7 Bhg3 Kg2 Qf4 Ba4 Qe7 Qb1 Bc8 Bc2 Qd7 Rd4 Qe7 Bbe4 Qe8 Rd5 Qfg5 Bc3 Qgg4 Rfd1 Q4f5 R1d3 Qfg5 Rf3 Qd2 Rf5 Qd4 Kh3 Qd1 Be1 f1Q+ Bg2 Qf2 Bge4 Qe3 Kg2 Qf4 Bf3+
4RNn1/2q1Brb1/QpB5/1nR1n1B1/5bP1/2nNp1rb/1Bn1Pk1K/qR6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 g5 Qb3 gxf4 Qe3 h4 Qg3 hxg3 a4 Kd7 h4 Kd6 d4 c5 a5 e5 a6 f5 a7 e4 h5 c4 h6 f3 h7 b3 Ra5 f4 Ra1 g2 Kf2 c3 Nd2 c2 Bb2 c1B Ra5 b6 Rh4 Bb7 Ra1 Nd7 Nb1 Qc7 Ra6 Bg7 Ra5 Ne5 Nc3 Rf8 a8Q Rf7 Nh3 g1N Bg2 Bc6 Kf1 f2 Nd1 Ngf3 Rc5 Bd2 Bh1 Be3 Kg2 f1N Qa6 Ba8 Ba3 b2 Ndf2 b1N Nd3 Nc3 Bb2 Bd2 Ng5 Ne3+ Kh3 Nc2 Bg2 e3 Bh1 Be1 Ne6 Bg3 Rh5 Nc4 Rb5 Nfe5 Nf8 f3 Rg5 f2 Bf3 Bh4 Kh2 f1Q Bh1 Qa1 Be4 Ke7 d6+ Kf6 d7 N4a3 d5 Be1 Rc5 Nab5 d6 Bd5 Bh1 Bg2 d8R Bh3 d7 Bf2 Re8 Bh4 Rh5 Bg5 Bc6 B5h6 Rh4 Kg5 d8B+ Nf6 Nb4 Kf4 Be7 Bg5 Rh6 Ng8 Rd6 B5h6 Rd1 Bg5 Rb1 B5h6 Kh1 Kg3 Bg5 Kf2 Kh2 Rf4 Be7 Rf3 Bg5 Rg3 Be7 Bf4 Bg5 Ne1 Nd3+ Kf1 Qa5 Bh6 Nb4 Kf2 Qa6 Nc2 Rd5 Ne7 Rc5 Rg8 h8B Rg7 Bd7 Rh7 Bhf6 Rf7 Bc6 Ng8 Be7 Bg7 Nd3+
6r1/3p2qb/2qrR2R/BqkP1pP1/N2q1RRq/2bn2n1/2K1B1n1/1NB1Q3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 g4 Ke7 e4 Kd6 c4 h5 d4 a5 Kd2 h3 b6 b3 g5 b2 b7 h4 Ra4 f3 Qc2 f2 Bd3 f1N+ Kd1 h2 Qg2 h3 Bd2 Nh6 Be1 Qf6 Qf2 Qg7 Qd2 Ng4 Ra3 a4 Bf2 Ng3 Ra2 a3 Be1 Rh6 Be2 Na6 Kc2 Nc5 b8B+ Kc6 e5 Ba6 e6 Nd3 e7 Rd6 Ra1 a2 e8R f5 c5 Bc4 Re7 Bg8 Re6 Bh7 Qb4 Kd5 c6 Be7 c7 Bf6 Ba7 Rg8 c8R Be5 Rc4 Ne3+ Kb3 Ng2 Kc2 Bf6 Bb6 Be5 Bd2 Bf6 Bc1 Be5 Nf3 Bf6 Rf1 h1Q Ba5 h2 Qe1 Be5 Rb4 Kc6 Nc3 b1Q+ Kd1 Bf6 Na4 Kd5 Rb6 Qb5 Kc2 Kc4 Rb1 a1Q Nd2+ Kd5 Rf4 Be5 Qd1 Qe1 Rc6 h1Q Rb4 Qh4 Nb1 Qeh1 Qe1 Qc3+ Kd1 Qg1 Ra6 Qcc6 Rg4 Bf4 Rc4 Bd2 Kc2 Bc3 Rh6 Rg6 Rb4 Kd6 d5 Q1d4 Nb2 Kc5 Rb6 Qa8 Re6 Qac6 Ra4 Qf2 Raf4 Qfd4 Re5 Rd6 Ree4 Qbb6 Ree6 Qbb5 Na4+
6Bb/3p1Nb1/KP1Rb3/5q1Q/br5n/P1knB2q/pr4R1/NBBq1bR1 b - - 0 1 illegal: No proof kernel
N1bB2bQ/KRP1Nk1p/n4PR1/B3n2B/3rr3/qNbb1q2/2B4p/2rb4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 Kd3 e5 f4 d5 g4 h3 a4 h2 c4 b3 c5 b2 c6 b4 g5 b3 f6 Qa5 g6 Bh3 f5 Qd8 c7 Qd6 g7 Na6 a5 Rd8 Nd2 Kf7 Rb1 Nh6 Ne2 Qa3 Nf4 Ng4 Ng6 Bb4 Rg1 Bc3 Be2 Rhe8 Ne7 Rd6 Qf1 Rd7 Bd1 Rdd8 Bc2 e4+ Ke2 e3 Kd3 e2 g8B+ Kf8 f7 e1R Rg2 Kg7 f8B+ Kf6 Nc8 R8e4 Be7+ Kg7 Bf7 Rd6 Ra1 b1B Bh5 b2 Bd8 Ba2 Ne7 b1B Nb3 Rd1+ Bd2 Rc1 f6+ Kf8 Qe2 Rd7 Qe3 Ne5+ Ke2 Bf5 Rg6 d3+ Kf2 d4 Qf3 Rg4 Qa8 Re4 Be1 d2 Qc8 Nb8 a6 d1B a7 d3 a8N Na6 Qb8 d2 Qc8 Rh4 Ke3 Kf7 Qb8 Bfg4 Ke4 Rd3 Qc8 Re3+ Kd5 Re4 Qb8 Nd7 Kc6 Ne5+ Kb7 Bc8+ Kb6 Rd4 Ka7 Rhe4 Na5 Bc4 Nb3 Ba2 Rb1 Bd3 Bf2 B1e2 Be3 d1Q Bd2 Qf1 Be1 Bd1 Bd2 Qf3 Be1 Ba1 Ba5 Bc3 Nc5 Kf8 Rb7 Bg8 Nb3 Kf7 Nd5 Bh3 Be7 Be6 Qd8 Bc8 Qf8+ Ke6 Qd8 Bf7 Qh8 Bg8 Bd8 Kf7 Ne7
1N3qn1/q1P2Pr1/1p3p2/B5qr/6Q1/bnN1RBk1/3n1nBn/Bb1RR1K1 b - - 0 1 illegal: No proof kernel
1B3R2/1np3nB/b1rQ1qrn/1P2Rq2/1p1P1kBn/bb6/n1N1N3/NN3K2 b - - 0 1 illegal: No proof kernel
1nb1r3/1NpN4/1Nn2QpB/8/1NK1R1n1/2b2qPB/rrRP4/rr2kB1q b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 f5 b5 axb5 h4 g3 h3 f6 exf6 Qb3 f5 Qf3 f4 Qg2 hxg2 b4 Ke7 h4 Kd6 e4 Ke5 Ke2 Kd4 e5 a5 e6 f5 b6 c3 h5 g6 b7 c2 b5 a4 h6 a3 h7 a2 e7 Nf6 e8B Nd5 b6 Nb4 Nh3 g1R Na3 Qf6 Nc4 Bg7 Ba3 c1R Ng5 Rc2 Re1 a1R Nf7 Rb2 Nd8 N4c6 Bf8 R8a2 Bd7 Rg8 h8Q f3+ Kf2 f4 Bdh3 Qh4 Re2 Be5 Qf6 Kd3 Bh6 Bc3 Re8+ Kc2 Re4 Kc1 Ke1 f2+ Ke2 f3+ Ke3 Kd1 Kd3 Nd7 b8N Re8 Na6 Ndb8 b7 Qf4 Bfg2 f1N Nb4 f2 Nb6 Qf3+ Kc4 Nh2 Bf1 Ng4 Re2 Na6 b8N Rab1 N8d7 Nab8 Re4 Rba1 Be2+ Ke1 Nb7 f1Q Bd3+ Kf2 Be2 Qg2 Bd3 Rgb1 Rc1 Qh2 Be2 Qh1 Rc2 Ke1 Bef1+
1q1nr2q/rP2k1B1/5p2/2RB2RB/2pPq2N/R3b1q1/2q3rB/Kb1n1Q1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 c3 e4 c5 b4 h5 g4 a5 g5 h3 b6 h4 b5 f6 b7 a4 b6 a3 g6 a2 g7 f3 e5 c2 Kd2 h2 Kc3 f2 Kb2 h3 e6 c4 e7 Nc6 b8B Ra7 b7 Nh6 g8B Bf5 Bd2 Ng4 Bb4 Ne3 Na3 Bh6 Be2 f1Q Nb1 Qf2 Nf3 c1R Bg3 Qb8 Nc3 Bb1 Rg1 h1Q Ne4 h2 Bgd6 Rc3 Ng3 Nd8 Qf1 Qhg2 Bf4 h1Q Bbd6 Qh5 Nh4 Qe4 Nh1 Rd3 Bh2 Rd2+ Kc3 Bf4 Rg5 Qg3 Bc5 Kd7 e8R Rb2 Bd1 Rg2 Bf8 Qh6 Bh5 Nd1+ Kb4 Qg7 Ree5 Be3 Rc5 Qh6 Bg7 Ke7 Bd5 Re8 Ra5 Qh8 Ka3 Bd3 Rb1 Bc2 Rb5 Bd3 Rc5 a1Q+ Kb4 Qb1+ Ka3 Bc2 Ra4 Qc1+ Ka2 Bb1+ Ka1 Qcc2 Ra3
1Nq1n1K1/1PqN4/pR1b4/1q1p1BBP/Rn3nb1/R6N/nrRn2Q1/r3k3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Ke6 h4 Ke5 c4 f5 b4 g5 b6 d5 c5 d3 b5 Kd4 h5 f3 Kg3 f2 e5 d2 e6 Ke3 e7 f4+ Kh2 g3+ Kg2 g4 e8N Bd6 b7 Nf6 c6 Na6 b8R Qc7 b6 Nb4 Bd3 f1N Nh3 Bd7 Na3 f3+ Kg1 f2+ Kg2 Qc8 Nc7 Ne8 Qc2 Be6 Bf5 Ke2 Qa2 Ke1 Nc4 d1N Ne5 Nc3 Na6 Qc7 Qc2 Nca2 Nd7 Rg8 Rh2 Nd2 Rb7 Qc8 Nab8 a6 c7 Ra7 Ng1 Rg6 Rh4 f1Q+ Kh1 Qe2 Nh3 Qb5 Kg2 Rf6 Be4 Rf1 Bf5 Qd8 c8R Qc7 Qb2 Ra8 Rd8 Qc8 Rc7 Ra7 Rc2 Rc7 b7 Rc3 Nc6 Rb3 Ncb8 Qc7 Qg7 Rb2 Rc8 Rf3 Rc6 Ra3 Rb6 Ra4 Kg1 g2 Qg8 Kd1 Kf2 g1N Ke3 g3 Kd4 g2 Rf4 Ra3 Rf3 Ra5 Ra3 Ke1 Qg6 Qd8 Rc2 Qc8 Be4 Bg4 Bf5 Nb1 Bg5 Ne2+ Ke3 Nf4 Kd4 Bc5+ Ke5 g1Q Qg8 Qh2 Ra4 Ng7 Kf6 Ne8+ Kf7 Bd6 Qg7 Qg3 Qg6 Qgc3 Kg8 Q3c7 Qg7 Nc3 R1a3 Nca2 Qc3+ Nd2 Qf3 Nbd3 Rac4 Ndb4 Qg2 Nc3 Rb3 Ra1 Ra3 Nca2 Rd4 Nc6 Rda4 Ncb4 Kh7 Ne6 Kh8 Nf4 Kg8
4r1NN/1PKPqb2/pp4qb/1r1B1RB1/3bB1b1/B2R3R/n2k3n/b5Qq b - - 0 1 illegal: No proof kernel
N5r1/Bp3B1q/7R/1Pn1Rbqp/P1K5/1r3QNr/1qk1Nb2/1rBrNn2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 b5 exf4 Qb3 Bh6 Qc3 Bf8 Qb4 axb4 d4 Ke7 Kd2 Kd6 Kd3 c5 e4 f5 a4 c4+ Ke2 b3 g4 c3 Kd3 f3 g5 c2 g6 f4 g7 h3 Nc3 f2 Ra3 f3 Kc4 h2 Ra2 b2 Nce2 Nh6 g8N b1R Nf6 Na6 Nh5 Nc5 Nhg3 Bf5 Bg2 f1R e5+ Kc7 e6 Kb6 d6 Ka5 d5 f2 e7 Ng4 e8Q Rd1 d7 f1R d6 Rf3 Qe4 Qg5 d8N Rfb3 d7 Bh6 Ne6 Rag8 Qf3 Bf8 Ba3 c1Q+ Rc2 h6 Nc7 Qb2 d8B Bg7 Be7 Bd4 Na8 Bf2 Bd6 Rh7 Bb8 Rhh8 Ba7 Rh7 Nh3 Rhh8 Re1 h1Q Nhf4 Nh2 Nd3 Nf1 Rc1 Qhh5 Bh3 Qhg6 Bg4 Qh7 Bh5 Rc8 Be8 h5 Bf7 Rhg8 Ndf4 Rcd8 Ng2 R8d3 Rc2 Qa1 Bc1 Qb2 Rd2 Re3 Rd6 Red3 Nd4 Re3 Rh6 Red3 Kd5 Kb4 Re5 Kc3 Ne1 Re3 Ng2 Kd3 Nde2 Kc2+ Kc4 Ra1 Nh1 Rh8 Qf4 Rh3 Qf3 Rg8 Nhg3 Rb1 Ne1+
R7/P2p4/2QPNR2/K3n1qN/R1Nq4/1rRb1n1p/BnqkB1qr/4bq2 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 b5 a4 b6 a3 Bb2 axb2 Nh3 cxb6 Ng1 b5 Be2 b4 Ba6 Qc7 Bf1 Qd8 a4 Kf7 f4 Kf6 c4 b5 d4 h5 Kd2 e5 g4 e4 a5 b3 Kc3 e3 c5 e2 Kb4 e1N d5 h3 a6 h2 a7 h4 Ra2 Nh6 Ra1 Na6+ Kc3 Nf7 c6 Nf3 c7 Nc5 Kb4 N7e5 Na3 b1Q Qc1 b2 Ne2 Rb8 Nc4 Ncd3+ Ka5 b4 Ra4 b3 Ng3 Qa1 Be2 b1Q Rf1 h1Q d6 b2 Qc3 Qg2 Rc1 Qc2 g5+ Kf7 f6 Kg6 f7 b1Q Rf1 Be7 f8R Rb3 Nh5 Ba6 Rf2 Qbf1 f5+ Kh7 f6 Kg6 f7 Kf5 g6 Ke4 g7 Nb2 g8B Qad1 Qe1 Qd4 Qc3 Bg5 Re8 Bd2 f8N Qdg5 Ra8 Be1 c8R Rh7 Ne6 Rh6 Na3 Bd3 Rc5 Ke3 Rcc8 Nd2 Qc6 Rh7 Rf6 Ndf3+ Rb4 Kd2 Ra4 h3 Qd5 Rg7 Rc3 Rf7 Qc6 Nh2 Rh6 Rf2 Rf6 Nhf3 Nf8 Rb7 Ba2 Rb3 Ne6 Qgh1 Bd1 Rh2 Be2 Qhg2 Nc4+
1n1b1R1b/pnkn1B2/2N4B/1P1n2Nr/1nPrq1NQ/2R1N1pq/4b1B1/6K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 e4 Kd7 b4 g5 c4 f5 h4 g3+ Kg2 f3+ Kh3 f4 e5 g2 Kh2 g4 e6+ Kc7 e7 d3 e8B f2 h5 d4 h6 d2 h7 f3 Bb2 d3 Ra4 Qd5 Na3 Nf6 Bc6 Be7 Qa1 d1N Ra5 d2 Bd3 f1Q Bg6 f2 Qa2 Ne3 Bf7 d1N Nf3 Nc2 Bc1 Qe4 Bh6 Nde3 Ng5 Ned5 Qa1 Nfd7 Qe1 Qfd3 Rf1 Bd8 Ra6 Qb3 Bb7 Qbe3 Rf6 Q3d3 Rf3 g1B+ Kh1 Bh2 Kg2 Be5 b6+ Kd6 b5 Ncb4 Bc6 g3 b7 Kc7 Nc2 Qg4 Qe3 Qde4 Qd4 Qe6 Rc1 f1N Kg1 Nd2 Ne3 Nb3 Rc3 Nbc5 Rf2 Qh3 Rf4 Re8 h8N Re6 Rf1 Rd6 Ng6 Bef6 Ne5 Bh8 Bf8 Rh6 N5g4 Rh5 Bh6 Nf8 Nf6 Bg4 Rf2 Be2 Nfg4 Nfd7 Qf6 N8a6 Qe7 Rc8 b8N Nb7 Qf6 Nbc5 Ba8 Nb7 Nc6 Nab8 Nh7 Be7 Qh4 Rf8 Ng5 Bd8 Bg8 Re8 Rf8 Re6 Bf7 Rd6 Rg8 N5b6 Re8 Rd4 Rf8 N6d5 Rc2 Na5 Re8 Qh7 Ne7 N5f6 Bg2 Nfd5 Rf8 Qe4 Rc3 Nb7 Nc6
2r2b1n/4bp1R/p4BP1/3r2bK/Rb2R1B1/N1R1BP2/k1Nq3Q/2b1b1bn b - - 0 1 illegal: No proof kernel
qn5r/2nR3N/BBRrr3/NQ1Nk3/7b/Pb2Rn2/pP1bK1pq/1nR5 b - - 0 1 illegal: No proof kernel
N1n4q/rn2Qb2/N3R1q1/1B1N4/p1k1N1Pb/3rpR2/1PbqqB1R/n6K b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 f4 Kf7 Kf2 Ke6 c4 h5 g4 a5 Kg2 d5 b6 e3 c5 e2 c6 e1N+ Kh2 h3 c7 a4 b7 d3 Nd2 h4 Nb3 d4 f5+ Kd5 f6 e5 f7 d2 Nc5 d3 Qe2 d1B Ne4 d2 Qe3 Be6 c8N Na6 b8N Ra7 Qc3 Ne7 Qa5+ Nc5 Na6 Bc2 Rb1 d1Q Ne2 Kc4 Ng1+ Qe2+ Nf2 e4 Bg5 e3 Qd2 Nb7 Rc1 Rh7 Qa5 Qd2 Qe5 Bh6 f8R Bf7 Bf4 Bg5 Bg3 Rh6 Re8 Rd6 Qg7 Rd3 Nb6+ Kb5 Qf8 Nc8 Na8 Kc4 Re6 Bf6 Qe7 Bg5 Nf3 Bf6 Nd4 Bg5 Rg1 Bf6 Kh1 h2 Ra1 Qf3+ Rg2 Kd5 Re4 Rb3 Ne6 Bd3 Nd4 Nc2 Re6 Bg5 Rb1 Na1 Nc6 Bc2 Bb5 Qfe2 Rf1 Rd3 Ncb4+ Kd4 Nd5 Bf6 Bc6 Kc4 Ne4 Bg5 Be1 Bf6 Rgf2 Bg5 Kg2 h3+ Kg3 h1Q Rf3 h2 Bf2 Bf6 Kh3 Bg5 Rg3 Qhf3 Rh1 Qf5 Rf3 Qg6 Bb5+ Kb3 Re1 h1Q+ Kg3 Qh4+ Kg2 Qh8 Rh1 Bf6 Rh2 Bh4 Bd7 Kc4 Kh1 Bb3 Be8 Bc2 Bb5+
rR2rr2/4n2r/Q2q1Bq1/kNR2BPp/nR3p2/1P2BnNb/8/K1B1bb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Kd7 Kd2 a5 Kc2 f5 e4 c5 g4 Kc7 e5 Kb6 d5 h3 b3 c3 d6 f3 g5 c4 d7 a4 e6 f2 e7 a3 e8R a2 Na3 f4 Qe2 h2 Qg4 Ka5 b6 Nc6 b7 Nd4+ Kd1 c2+ Kd2 c3+ Kd3 Nf3 b8B Bb4 Bh3 f1B+ Re2 Ne7 Ba7 Re8 Bae3 h6 Rb1 a1Q Nb5 Qa2 Rb2 Qb1 Qe6 Qc7 Bf5 Qd6+ Kc4 Rf8 Nh3 Re8 Nf2 Rf8 Ne4 h5 Rg1 h1R Ng3 Rh3 Bcd2 c1R Rc2 Re1 Bc1 Rd1 Rd2 c2 Rd4 Be1 Rh1 Rd2 Kc3 Rh2 Rb4 Rh3 Ba3 c1N Rg1 Nd3 Bc1 Nc5 d8B+ Qb6 Qh6 Rd7+ Rd2 Qe4 Kb2 Na4+ Ka1 Qc6 Rc2 Qg6 Rc5 Rc7 Rg2 Qbd6 Rd2 Rh2 Rdd5 Re2 Re5 Nc6 Bf6 Rh7 Re8 Ne7 Be4 Bch3 Bf5 Rc2 Rb8 Rc4 Rd5 Rcc8 Rc5 Rce8 Qg7 Nc6 Qb7 Ne7 Qa6+
1K2b2R/1QN3bb/4N3/1b2P1B1/kr1q1pqp/2RN2P1/1n1NB1r1/2nnrR2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 f5 Kd3 d5 c4 Kd7 e4 a5 b4 h5 g3 f3 b6 Kc6 e5 f4 b7 h3 c5 Kb5 c6 a4 c7 h4 Qd2 f2 Qe3 a3 Rh2 a2 Nd2 Bf5+ Ne4 Nh6 c8R Bg7 Ba3 Ng4 Qe1 Bh7 Qe2 Nc6 b8N Na5 Rb1 a1R Qb2 Nc4 Nf3 Ka4 Be2 f1B b5 Rf8 Rg2 h2 b6 h1B b7 Ra5 Be7 Nf2+ Kc2 d3+ Kc3 d2 Kd4 d1N Na6 Rg8 b8N Nd3 Nd7 Nc1 Qb7 Ncb2 Nfg5 Rb5 Rc3 Rb4+ Kc5 d4 Kc6 d3 Rg1 d2 Ne6 Bf3 Rh1 Bh5 Nac7 Be8 Bg5 Rh8 Bh5 Be2 Rf1 Bb5+ Kb6 Rf8 Ka7 Rf6 Be2 Ra2 Ndf8 Qd4+ Kb8 Rf7 Nd7 Ra1 Ndf6 Rd7 Nf2 Rd6 Nd3 Rc6 Rb3 Rc2 Ne4 Nc3 Bh5 d1Q Nd2 Qe2 Bg4 Ncd1 Rc3 Qf3 Nc4 Rg2 Nd2 Qfd5 Be2 Qf3 Rc6 Qg4 Rc4 Na2 Rbc1 Rb1 R1c3 Nc1 Rc5 Ra1 Rd5 Rb1 Rd8 Nf2 Ne1 Bh5 Rc8 Na2 Rh8 Bhe8 Nd3 Re1 Nf8 Nfd1 Nfe6 Nc1 Rf3 Bec6 Rf2 Be8 Rf1
n1NRbn2/r1r2R2/1NR2N1b/3p2p1/rn2q2P/2Q3Bk/BKPq4/1b2Rn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 b4 Ke6 e4 a5 h4 f5 e5 g5 b6 g3 b7 d3 Kc3 d2 b5 f3 b6 a4 Bg2 f4 Ra3 Kf5 e6 Kg4 e7 Ra7 e8R Ne7 Rh3 Nbc6 b8N Rh7 b7 Bh6 Rh2 Ng6 Qe1 d1N+ Kc4 f2 Rh3 f1B+ Re2 f3 Bf4 f2 Rd3 a3 Kb3 a2 Rc3 a1R Re8 Nf8 Nf3 Ne3 Nd4 Bc4+ Kb2 f1N Bd5 g2 Nf5 g1Q Ne7 R1a4 Bg3 Qh1 Nd2 Nb4 Ne4 Ba2 Rc6 Bb1 Ba2 Ned5 Qc3 Nc7 Rh2 d5 Nd7 Na8 b8R Qa5 Nb6 Bd7 Rf2 Kh3 Nf6 Qe4 Nec8 Rc7 Rd8 Be8 Re2 Ra7 Rb7 Rc7 Re1 Qa6 Rcd6 Qae2 Rc6 Qd2 Rc4 Rc5 Rf7 Rcc7 Rc6
qNBK1Rq1/1NRB2b1/r3r2b/2P1p2b/3R4/Qq1pPn2/1nq2kB1/4n1R1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 g5 fxg5 h6 g6 Qa5 g7 Qd8 g4 Qb6 g5 Qc7 g6 Qd8 Bg5 hxg5 Kd2 e5 Kd3 Ke7 Kc4 Kf6 Kd5 Kf5 c4 Kg4 h4 Kg3 a4 f5 c5 b5 h5 g4 a5 d3 h6 d2 a6 b3 h7 f4 a7 f3 Nc3 b4 Nb5 b2 Rc1 b1Q Nc7 b3 Rh2 b2 Rf2 Ne7+ Kd6 Nbc6 g8B Nf5+ Kd5 Nfd4 g7 Nc2 Nb5 N6d4 Bh3 Ne1 Nc7 Qc2 Nb5 b1Q Be6 d6 g8B Bg7 Bd7 Ba6 Bf7 Re8 h8R Re6 Bg2 Qg8 Rh7 Qb4 Rf1 f2 Nf3 Qba4 Rg1 f1Q Ra1 Kf2 Qc1 d1N Qa3 Nb2 Rd1 g3 e3 Qfd3 Bh5 Qdc3 Bg4 Q3d3 Nd2 Ndf3+ Kc6 d5+ Kc7 d4 Nd6 Qdb3 Nb7 Be2 Nc4 Qa6 Nca5 d3 Nc6 Qaa4 Nb8 Qa6 Rgh1 Qaa4 R1h4 Qa6 Bf1 g2 Rc1 g1B Bg2 Bh2 B4h3 Na4 Rd4 Bf4 Bc8 Bfh6 Bf5 Bf8 Kd8 Nb2 Rc7 Bd1 Be4 Be2 Bc6 Bfg7+ Be8 Nh4 Rd1 Bh5 Ra1 Nhf3 Rc1 Bf8 Bed7 Qaa4 Rd1 Qc6 Rc1 Bfg7+ Be8 Qcb5 Rf7 Qh8 Na5 Qg8 Rf8 Qa6 Bed7 Qe2 Rb1 Nc2 Rg1 Ne1 Nbc6 Rb8 a8R Rb6 Nb8 Qec2 Ra7 Rbd6 Rc7 Qa8 Nb7 Rb6 Re8 Ra6 Rf8
3qN1nb/3Nk3/2rBN1Rp/n2P2r1/BPn1n2b/1RBp4/2bqQ1NK/4q3 b - - 0 1 illegal: No proof kernel
bnqR1b1N/3nRK2/3q2P1/1N3B1r/3BPrpN/1Rnp1r2/3kRQ1r/6q1 b - - 0 1 illegal: No possible last move, all moves rejected
1rNr2Rq/b4Nn1/4BP2/3RbR2/1B6/pkP1qqQ1/r1n1N1bp/2bK3R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 f4 Ke6 g4 Kd5 f5 a5 b6 h5 f6 e5 b7 d3 c3 Kc4 b5 d5 g5 d4 g6 h3 g7 e3 b6 h4 Qc2 e4 Qe2 h2 Qb2 h3 Kd1 e2+ Ke1 d2+ Kf2 d1Q Bh6 e3+ Kf3 d3 Qd2 e1B+ Ne2 a4 Na3+ Kb3 Ra2 Qd4 Nc4 Nc6 b8R Ba3 b7 Nge7 g8R Bf2 Re8 Nb4 Bf8 Nc2 Rg1 h1Q+ Rg2 Nf5 Ra1 Bc1 Re5 Ng7 Qe1 d2 Nd6 a3 Be7 Rd8 Nf7 h2 Rd5 Bh3 Rc8 Rb8 Bb4 Bg3 Rc7 Be5 Rcc5 Qg1 Ra5 Qh4 Qg3 Qh8 Rab5 Bc7 Rf5 Be5 Rd5 Qf2+ Ke4 Qf3+ Kd3 Qe1 Rg1 Bg2 Rh1 Rbc8 b8N Qef2 Nc6 Rb8 Na7 Qe1 Qf4 Qeg3 Nc8 Qe1 Ng1 e2+ Qe3 Qeg3 Ra2 e1B Ne2 Qg5 Ra1 Bf2 Rg1 Bh1 Bh3 Bg2 Rh1 Qfg4 Qg3 Ba7 Rff1 Q4h5 Be6 Qh3 Rf5 Qf4 Ng1 d1R+ Ke2 Rf1 Ra2 Rf2+ Kd1 Qf3+ Ne2 Q3h6 Ra1 Qhe3 Ra2 Na1 Rad2 Nc2 R2d4 Qe8 Re4 Qh8 Rg4 Ne8 Qf4 Na1 Rg8 Ng7 Qg3 Qff4 Ng1 Ra2 Qf3 Nc2 Qg3 Qff3+ Ne2
nq1r2B1/2nbbK1R/1B3p2/2p1P1R1/4RbPq/1k1n1QN1/1Br2N2/1nB3r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 a5 d4 h5 e4 c5 b6 c3 b3 f3 b7 c2 d5 a4 d6 f6+ Kd5 h3 d7 h4 Ke6 f2 e5 h2 Bf4 c1B Bd3 f1N Nh3 a3 Qf3 a2 Be4 Ne7 Nf2 h3 Kf7 Nd2 Bh7 Nd5 Nc3 Nb1 Nce4 Na6 b8B Nac7 Ba7 Be7 Bg8 Nb6 Ng3 Rb8 Be3 Nba8 Bb6 Rh6 Bd4 Bf4 Bb2 Rh4 Re1 h1Q Bc1 h2 Re4+ Kb5 b4 Ka4 Bb2 Qe1 Ba5 h1N Bb6 Rh2 b5+ Qb4 Ba5 Qd4 Bac3 Kb3 b6 Qe3 b7 Qe1 Bc1 Rg2 Nh3 Nf2 B3b2+ Nd3 Nf2 Rh2 Bh7 Qh8 d8B Bd7 Bg8 Rc8 b8R+ Qb4 Nfh1 Rc2 Nf2 Qh4 Rb7 Ne8 Bb6 Rd8 Rb8 Nec7 Be3 Nc3 Rh1 a1R Bec1 Nb1 Rh2 Qa3 Rh1 Qa7 Rb7 Qb8 Ra7 Qg5 Rh5 Qh4 Rg5 Na3 Bd2 Rg1 Bdc1 Nb1 Rh5 Ne6 Re1 Bd6 Rg5 Bc6 Kg6 Bb5 Re7 Bd7 Rh7 Be7 Kf7 Nec7 Re4
Bb2R2K/1bB1Nr2/n4p2/PPQ1q2n/2p1RB1R/qb1n3k/3r3N/5rRb b - - 0 1 illegal: No proof kernel
b1R5/2K2nr1/4p1Pr/Q1bBRq2/r1B1NP1b/1p2Bnk1/1Bn4N/N1q3n1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 a4 h5 g4 b5 d4 e6 a5 e3 f3 e2 a6 e1B a7 h3 d6 h2 d5 c4 d7 c3 d6 b3 Bd2 b2 Ne2 h4 Qc2 h3 Ng3 b4 Ra3 b3 Bd3 Qa5 d8N Rh7 d7 Na6 Nf7 Bb7 Nh6 Nb4 Be3 Rg7 Qd2 c2 Bc4 c1Q d8B+ Be7 Ra2 Nc2 Na3 b1N g5+ Kg6 Rf1 h1R Ne4 Kh5 g6 Kh4 Ng4 Nh6 Nh2 Nf7 Bc7 Bd5 Be5 Bc5 Bb2 Bf2 Qc3 Nd2 Re1 Qb5 Qa5 Bb7 Ng4 h2 Ra1 Kh3 Rb1 Bh4 Ra1 Rh8 a8B Rh6 Re2 Rd1 Rb1 h1N Nh2 Ng3 Re1 Nd8 Ke5 Ne2 f4 Ng1 Ra1 Nb1 Ra2 Rd4 Ra1 Nd2 Re2 Ba6 Bad5 Bb7 Re1 Ba8 Rb1 Bb6 Kd6 Ndf3 Re2 Ba7 Ra1 Nf7+ Kc7 Bc5 Re1 Nb4 Nc2 Kg2 Ra4 Kh3 Na1 Nc2 Nc3 Kg3 Rb4 Qa6 Rb8 Qb5 Rc8 Re4 Bd2 Rd4 Re5 Re4 Be3 Rd4 Bd3 Ra4 Bf1 Qd3 Be2 Qe4 Bec4 Qf5 Ne4+
3Rq3/Q1Nbr1R1/3pRKRr/1q2BnN1/1N1p3b/bB1r3b/2nPP3/1k4q1 b - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 c3 b5 axb5 e5 Qa4 exf4 Qd4 cxd4 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 Kf5 Kc4 b4 Kb3 g4 Kc2 b6 a5 b5 h5 b7 h3 g5 h4 b6 f3 c4 h2 c5 f2 c6 h3 c7 a4 g6 a3 g7 a2 Bb2 Qe8 Bc3 Nh6+ Kg5 Ra3 g8N Nc6 b8R Nf5 b7 Rh6 Ba5 Nb4 Ra8 Rd3 Bg2 f1Q Nf3 Qg1 b8Q d6 Ne7 Bd7 c8R+ Kb2 Qc7 Nc2 Na3 Qb1 Rd1 h1Q Rg1 h2 Nc6 Re6 Nb5 Re7 Nb4 Bg7 Qa7 Bf6+ Kf4 Bh4 Nc7 f6 Bh3 Qg2 Bb6 h1R Ng5 Qc6 Rg2 Qb5 Rd8 Qg1 Rc1 a1B Rab8 Nh6 Be6 f5 Bb3 Rh2 Rf1 Rhh3 Rff2 Kb1 Rb7 Bb2 Rf3 Ba3 Re3 Ng4 Re6 Nge3 Ne4 Rh2 Rgg6 Rh3 Ng5 Rh2 Kf3 f4 Ke4 f3 Kf4 f2 Ba5 Nd5+ Kf5 Nde3+ Kf6 f1B Nca6 Rh7 Rc8 Nf5 Bd8 Be1 Be7 Bg2 Rd8 R2h6 Bf8 Bf1 Bg7 Bc8 Rbd7 Bh4 Nc7 Bh3 Rf7 Nfe3 Rfe7 Bd7 Rf7 Qh8 Ke7 Qg8 Be5 Nf5+ Kf6 Qe8 Rf8 Rg7 Rg8 Re7 Rg7
N5q1/2N3B1/rPrkpp2/b1nBr1PB/4NKBR/1q5r/3Q1nb1/b2Rn3 b - - 0 1 illegal: No proof kernel
Q3b2r/1BKNqb1N/P1RB1B2/5nqq/6rb/1B1p3k/1rP3np/3Rq2R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 b5+ Kd5 e5 a4 h5 f4 d3 g4 d2 a5 h3 a6 h2 Ne2 h4 Ra4 h3 Ra2 e4 Ra4 e3 Qe1 d1Q+ Bd2 b3 Rc4 b2 Qf2 b4 Rc7 b3 Nd4 e2 Qe3 e1Q Rc5 Qc1 Qf3 Be7 Nc3 b1B Bg2 b2 Nb3 Ba2 Rc6+ d6 Be3 Nd7 Bd4+ Ne5 Qe4 b1R g5+ Kg7 g6 Kf6 g7 Nh6 g8B Rb2 Be6 Bd7 Qf3 Be8 Ne4+ Kg7 f6+ Kg6 f7 Bh4 f8R Qe7 Bc3 Nc4 Bf6 Nf5 Ng5 Ra7 Qe4 Kh5 Nh7 Kg4 Nc5 Rab7 Nd7 R7b4 Rc5 Kg3 Kc6 d5 Kc7 d4 Qa8 d3 Bb7 Nce3 Rc6 Ng2 Bb3 Qce3 Ba4 Baf7 Bb3 Qa1 Rd1 h1Q Rg8+ Kh2 Rg5 Qac1 Rh5 Qee1 Rh6 Nd4 f5 Qg5 Bg7 Rc4 f6 Nf5 Rh5 Rg4 Rh6 Bh5 f7 Bg6 f8B Bgf7 Bd4 Kg3 Bf6 h2 Rg6 Kh3 Rg7 Qh5 Rg6 Qhg1 Rg8 Q7e6 Bd6 Qe7 Rg5 Nh6 Ra5 Nf5 Raa1 Qge3 Rab1 Qeg5 Ra1 Q1e2 Rh1 Qe1 Rd1
4R2n/n1Bb2b1/P3pb2/P2r1qNb/2r2k2/BRq2BNQ/K3n2p/2R1R1q1 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 gxh4 Bc4 c5 Bf1 cxd4 Kd2 Kf7 g4 Ke6 a4 Ke5 c4 h5 Kc2 b5 Kb2 d5 f3 e6 g5 e3 a6 e2 a5 e1B c5 d3 c6 b4 c7 d2 g6 d4 g7 b3 Qc2 d1Q Bg5 h3 Ra3 d3 Be7 d2 Bb4 h4 Bg2 h2 Qc3+ Kf4 Bc5 h3 Ka1 b2+ Ka2 Ne7 g8R Qd3 Bb6 Rh5 Rb3 Bd7 c8R Bh4 Qc6 Qc3 Bd8 Bg7 Re8 Ng6 Bc7+ Re5 Qd6 Bhf6 Qd3 Nh8 Qh7 Nc6 Ne2+ Kg5 Rf1 h1N Ng3 h2 Qh3 Na7 Re1 Rd5 f4+ Kg6 f5+ Kg5 Bb6 Kf4 Bf3 Qdc1 Bd8 d1B Nd2 Q1c2 Rc6 Rc8 Nde4 Qf2 Ng5 b1Q+ Ka3 Qg1 Bc7+ Be5 f6 Qf5 f7 Bf6 Be4 Bh5 f8B Bg7 Ka2 Bf6 Nf1 Ng3 Ba3 Ne2 Ng3 Bg7 Bd8 Bef6 Bf3 Qce3 Rc2 Rc4 Rcc1 Qc3 Bc7+
K5br/Q6N/pR2N1Pq/n4pPB/1n1b1BkN/2BqnnrN/6bR/2q5 b - - 0 1 illegal: No possible last move
1Nq1Q2K/bq3RNp/N3n2N/r5k1/b1n1P1B1/2Pr3r/Bb1pq3/R1r1B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kd3 a5 g4 a4 e4 f3 b4 h3 c3 f2 b6 a3 b7 a2 b5 h2 b6 Na6 b8N Bc5 b7 Ne7 Be2 f1Q Nf3 Nc6 Ng1 Ba7 Bd2 Nc5+ Kc2 Na5 Be1 d3+ Kd2 d4 Nf3 Bd7 Ne5 Kg5 Na3 f5 Nb5 f4 Nc7 f3 Qa4 f2 Nba6 Qc8 b8N Rd8 Ne8 Ne6 Ng7 Bc6 Rg1 h1R Rg3 Rd5 Rf3 Rh3 Rf7 Qg1 Qb5 f1R Qa4 Bd7 Qc6 Qb7 Qc8 Qf2 Qe8 Qf5 Bd1 Ba4 Bf3 Kf4 g5 Rd7 g6 Kg5 Ng4 Nc4+ Kc1 Qc5 Nh6 Qcc8 Bg4 Rg1 Nh5 Rgh1 g7 Rd8 g8B Rd6 Rb1 a1B Ng7 Rd8 Rb2 Rd7 Ra2 Bb2+ Kb1 d2 Ra1 d3 Ka2 Bb5 Kb3 d1Q+ Kb4 Qe2 Kb3 d2 Kc2 Nb6 Kb3 Rdd3 Kb4 Nc7 Kc5 Rdf3 Kd4 Ba4 Ke5 Rd3 Rf6 Rg1 Ba2 Ne6 Rf2 Kh4 Kf6 Nc4 Nc7 Rf1 Kf7 Rg1 Kg8 Kg5 Rf7 Rgh1 Nca6 Rg1 Bg3 Rc1 Be1 Be3 Nc7 Ra5 Kh8 Ba7 Nca6
2Q1K3/qB1N2Bp/3b4/q2n1pPn/Pr1BR2N/1nr3bR/1Rb2q2/3nBk2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 a4 Kg3 e4 Kf2 d4 b5 g4 c5 d6 b3 g5 b2 d7 b4 d5 c4 d6 h3 Qh5 b3 Qg6 c3 Bd2 c2 Qe6 c1B Qe7 h2 Ra3 f3 Ra2 Nc6+ Kd5 Nf6+ Kc5 Nb4 e5 Nbd5 Kc6 Rb8 e6 Nh5 Nc3 b1N Bg2 b2 Qe8 Rb4 e7 Qa5 d8B Bf5 d7 Bc2 Bc7 f5 d8B Rg8 Kd7 Rg6 Be5 Rc6 Bg7 Rcc4 Nb5 Nbc3 Nd4 b1N Nc6 Nd1 Rb2 Rc3 Ne5 Qa7+ Bc7 Qa5 Qc8 Qa7 e8R Bd6 Bf4 Nd2 Be3+ Ke1 Re6 f2 Ke8 f1Q Bd4 Qf2 Ba5 Nb3 Ngf3+ Ke2 Nh4 Bf4 Nd7+ Bfe5 Rg1 h1Q Be4 Bh2 Rg3 Qhe1 Rh3 Bhg3 Bf3+ Kf1 Bh1 Nb6 Bb7 Nd5 Re4 Qee2 Bd8 Qea6 B8f6 Q6b6 Bfe5 Qba5 Bf4 Bc7 Bd2 Bcd6 Be1
b2BnR2/1br3P1/1r1q3q/3bRn1r/qp2Np2/2b1Q1R1/P4NN1/1N1B1K1k b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 g4 Kd7 e4 Kd6 d4 h5 g5 f5 g6 c5 g7 b5 Kf2 h3 Ba3 f3 Qe2 h2 Bb2 h4 Qc2 b3 Qc3 c4 Nd2 h3 Bc1 b2 Qa5 b1R Ke1 c3 Bg2 c2 Kf2 Ne7 Kf1 f2 Bf3 Na6 Qc3 Bb7 Bd1 Rc8 Qe3 Rc7 Ba3+ Rb4 Nb1 c1Q Bb2 Rh5 e5+ Kd7 e6+ Kd6 Bc3 Qa3 Be1 Qa4 Bd2 Rb2 Ba5 Rb4 Nf3 f4 Nh4 Rb3 Ng2 Nf5 Rg1 h1Q e7 h2 e8R Be7 Rf8 Bf6 Bb6 b4 Ba5 Rbc3 Bb6 R3c6 Ba5 Kd7 d6 Rb6 d5 Bc3 Qh3 Ba8 Qe3 Kc8 d7+ Kb7 d6 Kc6 Nd2 Kd5 Nb1 Qf6 d8N Qe7 d7 Qd6 Ne6 Bb7 Qc5+ Ke4 d8N Bd5 Nf7 Ba8 Bb3 Kf3 Bd1+ Kg3 Nh6 Kh3 Ke2 f1B+ Kf2 Bb5 Ng4 Bbc6 Kf1 Bcb7 Ng5+ Kg3 Ne4+ Kh3 Ng3 Bd5 Qe3 Bdb7 Nh4 Qhc6 Ng2 h1B Nf2+ Kh2 Nge4 Qh6 Ne1 Qcd6 Rg3 Bf3 Ng5 Bfd5 Ng2 Re7 Nge4 Nc7 Nh3 Ne8 Nhf2 Rb5 Bd8 Rb6 Nbd2 Rf7 Rc1 Rc7 Nb1 Bf6 Rc5 Bc3 Nh3 Kh1 Ra5 Bf7 Re5 Bfd5 Nhf2+
2rN1kq1/3QrP1q/b1N5/4pp2/4b1qr/n2RP1RN/N1rB1n2/b1B2KB1 b - - 0 1 illegal: No proof kernel
2b5/1bb1Bp1b/n1BrNrn1/q2knB1P/3qqP2/1RR1BRp1/1Q6/5N1K b - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 e4 Ke7 c4 Kd6 f4 a5 Kf2 g5 Kg2 g3 h4 g4 h5 a4 b6 a3 b7 d3 Qc2 b3 Qf2 a2 Bb2 d2 Bd3 d1B Qe2 Rh6 Rh3 Ne7 Nd2 Qa5 Rh1 Rf6 Ngf3 Na6 Rh4 Ng6 Bc1 b2 Rb1 a1Q Nf1 Q1a4 b8B+ Kc5 e5 d5 e6 d4 Bf5 d3 e7 d2 e8B Bd6 Ng5 Bc7 Kg1 g2 Rh3 Bc2 Rg3 d1Q Be3+ Qd4 Rf3 Be4 Ne6+ Kd6 c5+ Kd5 Kh2 g1N c6 g3+ Kh1 Qac4 Ba7 Rb8 Bc5 Rb6 Be7 Qcb4 Rc1 b1B Rc3 Bbc2 Qg2 Bcd3 Rb3 Bb1 Rf2 Nf3 Qh2 Nfe5+ Rf3 Bbd3 Qb2 Qe1 Ra3 Bb8 c7 Kc4 Qa1 Bd7 Bf2 Nh8 Qb2 Rd6 Rb3 Bb7 c8R+ Kd5 Rcc3 Bc7 Bh3 Bdc8 Bg4 Bh7 Bf5 Qee4 Be3 Nhg6 Bc6+
Qn1KRb2/3p1r2/b2qPBb1/N3r1n1/1R4p1/B5q1/3Pk1nN/B2N1Bnq b - - 0 1 illegal: No possible last move
Rb6/q1P1p1N1/b1P1b2n/rRBpK1B1/3nn2Q/5qNB/k3Bn2/r2N3q b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 axb4 h5 c5 dxc5 g6 Ne2 gxh5 Ng1 h4 Kd2 Kf7 Ke3 Ke6 Kf4 h5 g4 b5 c4 b3 a4 b4 f3 h3 a5 b2 a6 e3 c6 h4 g5 h2 g6 b3 g7 h3 a7 e2 c5 e1N c7 Ba6 Qd3 Nh6 g8N Nc6 Qd1 Qb8 Ne2 Bg7 Nf6 Nd4 Ne8 Kd5 Nbc3+ Kc4 Be3 b1B Ng3+ Nd3+ Ke4 b2 f4 d6 Qg4 Kb3 Be2 Be5 Nd1 Ba2 Qh4 b1N Ng7 Nd2+ Kd5 Ne4 c6 Ndf2 f5 Rc8 Rf1 h1Q f6 h2 f7 Qf3 f8B h1Q Bg5 Bf4 Rg1 Be3 Re1 Bb1 Ra5 Bc2 Rb5+ Ka2 Rg1 Ndf5 Ke6 d5 Ke5 Bc5 Be3 Bb6 Bc5 Nd4 N3f5 Rd8 Rg5 Bd3 Ng3 Bc8 Rg6 Re8 Rd6 Be6 Rd8 Qb7 Rb4 Ba6 Rb5 Rb8 a8B Qa7 Bb7 Ra8 Rb8 Rd8 Bc8 Re8 N7h5 Rd8 Bg7 Rg8 Bf6 Rg6 Nf1 Rg1 Nfg3 Re1 Bg5 Rf1 Nb2 Ra1 Bd7 Qb7 Rg8 Ba7 Ng7 Bb8 Nd1 Qa7 Re8 Bf7 Bf5 Be6 Bh3 Bac8 Bd6 Qa5 Ba3 Ba7 Rb4 Bb7 Rb8 Bbc8 R8b7 Bb8 R4b5 Qb6 Bb4 Ra5 Ra7 Ba6 Ra8 Qa7 Bc5
1b2Q1BR/N1pnK2N/r1r3p1/2P2RBr/6Nq/2n2P2/1k1Nb3/b1qqb1R1 b - - 0 1 legal: proof: g4 d5 h4 b5 e4 dxe4 a4 f6 g5 fxg5 axb5 gxh4 Qf3 h3 Qh5+ Kd7 Qd1 Ke8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 c4 e5+ Ke3 Kc5 d4+ Kb4 d5 h5 b3 a4 b6 a3 f3 g6 d6 h2 d7 h4 b7 a2 Qe2 h3 Nd2 Kc3 b4 Qh4 d8R Nf6 b5 Ra6 b6 Bc5+ Rd4 Nbd7 b8N Rh5 b7 Ba7 Nc6 Bb8 c5 Kc2 Rb1 a1B Na7 Kc3 Qb5 Rc6 Bc4 Nd5+ Ke2 e3 Rf4 e4 Rf5 N5f6 Bg8 Nd5 Bb2+ Kc2 Bf6 Ra6 Bg5 Kc3 Kd1 e2+ Kc1 e1B Qc6 N7f6 Qe8 e3 Kd1 Nd7 Ke2 Kc2 Rd1 Kb2 Kd3 e2 Rc1 Qg3 Kd4 Nc3 Kc4 Na2 Kd5 Qh4 Nc6 Nc3+ Ke6 Bf2 Ke7 e1R+ Ne5 Re3 Bf7 Be1 Bg8 Rd3 Rd1 Rdd6 Ng4 Rdc6 Rc1 Nf6 Rd1 Be6 Rc1 Bc4 Rd1 Be2 Rc1 Ba7 b8N Nd7 Rd1 Rd6 Nc6 Bb8 Na7 Rdc6 Rc1 Bb5 Ne2 Bc4 Nf4 Be2 Rg1 h1Q Ne6 h2 Rd1 Kc2 Nf8 Kb2 Rg3 Qg1 Nh7 Qd4 Rg1 h1Q Nf1 Qc4 Rdd5 Qa4 Nd2 Qd1 Rf8 Q1h2 Rdf5 Qf4 Ba2 Qc4 Rh8 Qf4 Bg8 Qe3+ Ne4 Qec1 Nd2
QBnN3q/2p5/1PnqR1k1/1rN1p2n/2Bbn1r1/K1Rb2R1/bRP3r1/6B1 b - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 d4 h5 Kd2 e5 Kc3 a5 Kb3 f5 g4 Kf7 b6 f4 d5 f2 b7 f3 g5 h3 d6 h2 d7 a4+ Ka2 a3 b4 h4 b5 h3 b6 Bc5 Bf4 Ra4 Qc1 Nc6 b8B Nge7 Kb3 a2 Ba6 f1N Ne2 f2 Bc4+ Kg6 Nbc3 Bd4 Ne4 Rg8 Nc5 Ng3 Rb1 a1R Rb2 f1B Be3 Rb1 Bg1 Nh5 Qe1 Bb7 Qa5 Nc8 Qa8 Qe7 d8R Qd6 Re8 Rg7 Nc3 Bd3 Nd5 Rb4+ Ka3 Rb5 Be3 Rg1 Nb4 Rg2 Rhb1 h1N Bg1 h2 Re6+ Kf7 Rb3 Nf2 Rc3 h1Q Rb2 Rg8 g6+ Kg7 Nd5 Ne4 Nf4 Kh6 g7+ Kh7 Re7 Ba6 Ne6 Kg6 Bd5 Bc4 Nd8 Ba2 Bc4 Nhf6 Qb7 Qh8 Qa8 Nh5 Re8 Rf8 Re7 Rf4 Re8 Rfg4 g8R+ Qg7 Rgf8 Qh7 Rff3 Qh8 Rg3 Rb4 Bg8 Bd3 Bc4 Rb5 Re6+
1N4b1/K1p1r2r/P3RN1B/P1p1nB2/r5qb/nNQ4b/1nq1R1N1/1k1n1R2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 e5 c4 exf4 c5 d6 Rh3 dxc5 Rh2 Be6 Rh1 Bc8 Kf2 Kd7 e4 Kd6 a4 Ke5 g4 Kd4 d3 h5 g5 f5 g6 b5 e5 h3 a6 f3 e6 h4 g7 b4 e7 f4 e8R b3 Bd2 b2 Re3 h2 Re8 h3 Ba5 Nc6 Qc2 Nge7 g8N Ng6 Bd2 Nb4 Ra2 Be7 a5 Rh7 Bg2 Bh4+ Kf1 f2 Ke2 f1R Be4 Ne5 Ne7 Be6 Bf5 Bg8 Nd5 Qg5 Re6 Re8 Nf6 Ree7 Bc1 Rf3 Nd2 b1N Qb3 Rg3 Rc2 Rg4 Rb2 Nc4 Kf3 Nc6 Qa3 Qg6 Qa1 Qg7 Nb3+ Kc3 Ke4 f3+ Kd5 f2 d4 f1B Nf3 Nba3 Bh6 N6e5 Ne1 Rf4 Rg1 Qg4 Rh1 Re4 Rg1 h1Q Re2+ Nb2 Qc1+ Kb4 Qe3 h2 Qg3 Ng6 Kc6 Bh3 Kb7 Ne5 d5 Rc4 Kb8 Qhe4 d6 h1N d7 Nf2 d8N Nfd1 Rf1 Qd3 Ka7 Kc3 Ng2 Ra4 Re4 Kc2 Nc6 Qd2 Nb8 Kb1 Re2+ Qc2 Qc3
1qR1N3/1Pr2n1K/1B2p1R1/2rqp2b/b1QrB1PB/B4n1q/8/b1qNkR2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 g5 axb5 gxh4 e5 f6 Qd2 fxe5 Qd3 Nf6 Qd1 Ng8 Ke2 Kf7 Kd3 Ke6 Ke4 a5 b4 h5 f4 d3 c4 a4 g3 h3 c5 d2 c6 h4 c7 h2 b6 a3 b5 h3 b7 a2 b6 Ra5 Nc3 Bg7 Nb1 Nc6 b8B Nd4 b7 Rh7 Qf3 d1B Ne2 Ba4 Be3 Nh6 Rg1 h1Q Nd2 h2 Bg2 Nf7 Nc3 Rc5 Qe2 Nf3 Raf1 a1Q Nd1 Qc1 f5+ Kf6 Bd4 Kg5 f6 Kg4 Rf2 d6 Qa6 Bcd7 c8R Be8 Qb5 Qc7 Ba7 Qb8 Qc4 Bh8 Bb6 Bg7 Re1 Qf1 Bb2 h1Q Ba3 Qh5 Bh1 Kh3 g4 Kg3 Ree2 Qhh3 Bg2 Qfh1 Kf5 Bh8 Nb2 Qhd1 Kg6 Qb3 Re1 Qd3+ Re4 Qd5 Nd1 Nh6+ f7 e6 Ne3 Nh4+ Kh5 Qd3 Ref4 d5 Bh1 d4 Rf1 Bf6 Bb2 Bg5 Ba3 Qe4 Rf6 d3 R1f5 Qd5 Bf3 Kf2 Ne4+ Ke1 Nd6 d2 Be4 d1R Rf2 Rd4 Nd1 Nf3+ Kg6 Beb5 f8B Bd2 Be7 Bc3 Bed8 Rhc7 Be7 Bd7 Kh7 Ba1 Bd8 Be8+ Be7 Bh5 Ne8 Qa7 Rg6 Nf7 Bh4 Qb8 Rf1+
1r1B1n1R/1P1R2R1/1p2r1Q1/bbN2K2/1q4Bk/r3bP1p/r2Bq3/N1Bn3n b - - 0 1 illegal: No possible last move
N1b2Rqq/1P1p1N2/2nB1p1n/1Kb5/RB2P1q1/Nk1rNBr1/3nQ1q1/4r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 h5 b4 a5 e4 f3 g4 a4 b6 d3 b7 f6 g5 d2 g6 h3 b5 h2 g7 a3 b6 a2 Bg2 h4 Ne2 h3 Na3 f2 Bf3 f1R Ng3 Nc6 Qe2 d1Q Bd2 Re1 Kb5 Nh6 c4 Rg8 c5+ Ke5 b8B+ Kd4 Rg1 h1Q Nf1 h2 Ne3 Qg2 Bd6 h1Q Bb4 Qhh3 Rh1 Qb3 Rh2 Qhg4 Rh5 Ra4 Re5 Qf7 Re8 Be7 Rf8 Ra8 Rc1 a1N Rc2 Ra7 Ra2 Nb3 Ra1 Nd2 Ra2 Nb8 c6 Rb7 c7 Nc6 Nb1 Qfg6 Ra4 Qh7 Na3 Qh8 Bh2 Ra7 Bg3 Bc5 Bd6 Bb7 c8N Ra8 Ne7 Bc8 b7 Ra6 N7d5 Ra7 Nb6 Qe8 Nac4 Qd8 Ba3 Kc3 Bb4+ Kb3 Na8 Qe8 Ra1 Ra2 Na3 Rb2 Nac4 Rc2 Ra4 Rc3 Na3 Qeg6 Rd8 Rd3 Re8 Rf8 g8N Rf7 Rf8 Rg7 Ne7 Qf7 Ng6 Qfg8 Ne5 Q4h3 Nf1 Rg3 Nf7 Qhg4 Ne3
nR3B2/1Ppk3N/nB1b4/1rnK1B2/2r2N1P/1bQ2N1q/rp5q/1q1Nn1R1 b - - 0 1 illegal: No proof kernel
1N6/1pKRBbbN/Q1bnNR2/nq1rN1n1/1q2k1rr/p1P5/1P5B/3Bn3 b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qxa5+ Ke2 Qa6+ Ke1 Qa2 Kd2 Kf7 Kd3 Kf6 Ke4 h5 f4 a5 g4 e5 c3 d5+ Kd3 a4 Qb3 a3 Bg2 e4+ Kc2 d3+ Kd2 h3 Ke3 d2 Kd4 d1Q+ Bd2 e3 Ne2 h2 Qc4 h4 Qa6+ Be6 Rf1 h1B Bf3 Ne7 Kc5 d4 Kd6 h3 Kc7 d3 Nd4 e2 Nc6 e1N Bc1 h2 Nd2 Qe2 Nc4 d2 N4e5 Qd3 Bd1 Rh4 Rf2 Nc8 g5+ Kg7 g6 Kf6 g7 Qac4 Rf1 Nd6 Rf3 Qb4 g8N+ Kg7 Nf6 Bf7 Rf1 Qdb5 Nh7 Be4 Rf3 h1N f6+ Kh6 f5 Nf2 Rb1 Nh3 Rf2 Ng5 Rf3 Bc4 f7 Bg7 f8N Bf7 f6 Kh5 Ne6 Bd5 Ba4 d1R Bf4 Rd4 Bg3 Rdg4 Rd1 Kh6 Bh2 Ra7 Qb6 Ra5 Qa6 Kh5 Rd2 Be4 Bd1 Kh6 Nd3 Kg6 Rff2 Bf3 Nde5+ Kf5 Rd3 Ke4 Rdd2 Nd7 Nb8 Nb6 Rd5 Nbc4 Rd3 Nf5 Rd7 Nfd6 Rf1 Q5a4 Rf2 Rd5 Rf1 Qab5 Rf2 Bg6 f7 Na5 f8B Bf7 Be7 Rd4 Nef8 Kf5 Rd2 Bc6 Ne6 Rd5 Rf2+ Ke4 Rf6
1R1Rn3/1p1b1PQ1/nq2RN2/1B1qbK2/3p2nr/1R4Br/2P2N2/qk3bnN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 h5 a4 e5+ Kf3 b3 g4 h3 a5 h4 a6 d3 a7 d2 Qe2 d1Q Bf4 e4+ Ke3 h2 f3 h3 Qf2 b2 Ba6 Bd7 Qg3 Bg7 Bb5 Na6 Ne2 Rh4 Nbc3 b1Q Ra3 Qa1 Re1 h1B Rb3 h2 Qg1 Qdb1 Bg3 Bg2 Kf4 h1N Nd1 e3 Nf2 Bf1 Qg2 Rc8 a8R Rc3 Rb8 d4 Ke4 Kg5 f6 Rd3 f7 Nf6+ Ke5 Ne8+ Ke4 Qbb2 f8R Be5 Rh8 Qb6 Qg1 Qba2 f4+ Kf6 f5 Kg5 f6 Qaa5 Nf4 e2 f7 Rf3 Nh5 Rc3 Rd1 e1N Qg2 Nf3 Re1 Ng1 Re2 Ng7 Rhd8 Q5a2 Nf4 Ne8 N4h3+ Kf6 Re3 Ke6 Re2 Kd6 Re3 Kc5 Re2 Rh5 g5 Rf3 g6 Rh4+ Bf4 Rd3 g7 Rg3 g8N Rf3 Rbe3 Kb4 Qg7 Rg3 Nf6 Qd5+ Kd3 Ka3 Rf3 Qdd6 Ke4+ Ka2 Rb3 Qe6 Nd1 Qed6 Nhf2 Rgh3 Ree3 Bc6+ Kf5 Qd5 Bg3 Bd7+ Kg6 Bf4 Re6 Be5 N2e4 Nf2 Kf5 Ng4 Nef2 Nec7 Nh1 Ne8 Rf3 Kb1 Ndf2 Kc1 Rc3 Kb1 Rb3+
3Nq3/Pk1N1n1n/3b2b1/R1pBrQqb/n1BB4/2rNn2K/P2p2R1/2q2N2 b - - 0 1 illegal: No proof kernel
n1N5/p2b3q/n1nKRB1B/1k2Q3/1rRb2N1/1q2r2p/P2PRqbR/B5n1 b - - 0 1 legal: proof: e4 b5 h4 g5 c4 gxh4 e5 d5 cxd5 f6 Be2 fxe5 Bf1 e4 Bc4 bxc4 Ke2 Kd7 Ke3 e5 g4 c5 f4 h5 b4 c3 d6 Kc6 d7 c4 f5 h3 f6 h2 g5 c2 f7 h4 g6 c3 g7 h3 Bb2 c1Q Na3 c2 Qf3 Qd1 Bc1 Ne7 g8R Bg7 f8R Rh4 Ne2 Na6 Qg3 Qc7 d8B Bd7 Nc4 Kb5 Re8 Nc8 Bf6 Nb6 Bb2 c1N Ng1 Nb3 Nf3 Na5 Re6 Re8 Rc1 Nc6 Ba1 Na8 Nb6 Qb3+ Rc3 Re7 Nc8 Qb7 Re1 h1B Nh2 Bg2 Re2 Bh8 Qg5 Qc7 Ng4 Bg7 Kf2 e3+ Kg3 Qb7 Qf4 e4 Rc4 Bh8 Re8 Bg7 Rf2 e2+ Qe3 e1N Kf4 Nf3 Kf5 Bf1 Rh2 Ng1 Qg3 e3 Qe5+ Nc5 Kf4 e2 Kf5 e1Q Kf4 Ka4 b5+ Ka5 b6 Bg2 Kf5 Kb5 Kf4 Qc7 b7 Qe2 b8B Bh8 Qd6 Na6 Kf5 Qb7 Qg3 Qee3 Bf4 Qc7 Bh6 Qf2+ Qf4 Qb7 Bfg5 Bd4 Bf6 Nf3 Ke4 Qc7 Kd5 Ng1+ Re4 Qb7 Kd6 Re5 Re1 Re3 Re4 Be8 Re6 Qh7 Qg3 Bd7 Re2 Rh5 Rc2 Rc5 Rc1 Rc4 Rc2 Ra4 Rc4 Rb4 Qe5+
1r1b1q2/pkB1b1b1/bPB2B2/3pnBP1/5r2/1RN1N3/Kn1R1n1r/3Q2qN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 d5 g4 Kd7 f4 Kc7 c4 e5 Kc2 h5 Kb3 d3 b6+ Kb7 c5 d2 f5 h3 g5 e3 f6 h2 f7 h4 Bb5 e2 Ra2 e1B Qg4 d1N Nh3 e4 Nf2 h3 Nc3 Be7 f8N e3 Ne6 e2 Ng7 Qf8 Nf5 Nf6 Ne3 Rh4 Ba4 Nbd7 c6+ Ka6 b7 Rb8 c7 Ne5 Ra3 Ne4 Ka2 Bd8 b4 Nb2 Qf3 Rf4 b5+ Kb6 Rg1 h1Q Rb3 h2 Rg2 Qg1 Nh1 Nf2 Qh5 Bd2 Qg4 e1B Qd1 Nbc4 Ba3 Nb2 Be7 Bc1 Bf6 Bcd2 Ng3 h1R Rh2 Be7 Rg2 Rh2 Nh1 Bg4 c8B Be2 Bf5 Bd8 Nb1 Bb4 Nc3 Bd6 Qd3 B6e7 Qd1 Ra8 b8B Kb7 b6 Ba6 Bc7 Rb8 Ne4 Bc3 Bb5 Bd4 Nc3 Ne4 Rc2 Nf2 Rd2 Neg4 Bh8 Bg7 Ba4 Ne5 Bb5 Bh6 Bf6 Bg7 Bc6+
nr1k4/pb6/p1nKBP2/3n2BR/2Bb1R1q/2qrN2Q/P1rBn2N/N1b5 b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 Qe2 d5 cxd5 gxh4 Qa6 bxa6 Ke2 c5 Ke3 e5 f4 h5 b4 c4 d4 c3 g4 h3 b5 h4 f5 h2 b6 c2 g5 h3 b7 Bc5 g6 Qf6 g7 Kd8 d6 Qh4 d7 Nc6 b8Q Nge7 Bd2 c1B Qb3 Rb8 g8B Bb7 Nc3 Nc8 Be6 Nb6 Bfc4 Na8 Nf3 Rh7 Rf1 h1R Nd1 Rh2 Rh1 Rg2 Nh2 Rhg7 Rf1 Bb6 Rf4 R7g3+ Nf3 h2 Qd3 Ke7 d8N h1N Rb1 Rh3 Rb5 Ng3 Nh2 Ke8 Qf1 Ne2+ Qf3 Rhg3 Rc5 Rh3 d5 Rf2 d6 Rg3 Nf7 Rh3 Nh6 Kd8 d7 Ng3 N6g4 Ba5 Qh1 Bc3 Nf3 Rfh2 Ne1 Ba1 Nc2 Bc3 Qg2 B3b2 Kf2 e3+ Kf3 e2 Bb4 e1Q Rd5 Bd4 Na1 Qd2 Ra5 Qe1 Qf1 Rc2 Nh2 Qd2 Qd3 Qe1 Qc3 Qd2 Qe3 Qd3 Bd2 Qc3 Rg4 e4+ Kf4 Qf6 Qd3 e3 Qf1 e2 Qg2 Ke7 d8B+ Ke8 Qf3 e1N Qf1 Ne2+ Ke4 Nd3 Kd5 Qg6 Kd6 Qf6 Rf4 Qh4 Rb5 Re3 Qh3 Ndb4 Rd5 Rd3 Ne3 Qf2 Re5 Nd5 Bh4 Qg3 f6 Kd8 Rh5 Qe1 Bg5 Qf2 Bc8 Qh4 Be6
3B1R1K/p1P2pnn/2b1B3/N1Nqq3/kb2n1Q1/2R3qP/4B1Rr/1r2bqR1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 d5 e4 Kd7 c4 g5 b4 g3+ Kf3 g2 Kg4 d3 Kf5 d4 b6 f3 e5 Kc6+ e6 d2 b7 d3 c5 Kb5 c6 g4 c7 f2 Ra2 g3 Nf3 g1Q Be2 g2 Ne1 Ne7+ Kf6 Nf5+ e7 Qd5 e8B+ Bd7 Rb2 Bc6 Bd7 f1Q Be6 Qe3 Rg1 Qg3 Rc2 Bc5 Na3+ Ka4 b5 Bb4 b6 Rh5 Nc4 Ng7+ Bf3 Rh7 Na5 Qdd6 Qe2 d1N Rc3 d2 Nd3 Nf2 Qe4 d1Q Qg4 Qb3 Be2 Qbd5 Bf4 Q6c5 Bd6 Rh3 Be7 Qce3 Bd8 Qee4 Rc5 Be1 Rc3 Nd7+ Ke7 Rh6 b8R Nf8 b7 Nh7 Rc8 Qef4 b8R Ne4 Rb2 Rb8 Rd2 Rb1 Nc5+ Kb4 Rdc2 Qfe5 Ra8 Rf6 h3 Rf2 Rh1 g1B Rc8 Nf6 Kf8 Nh7+ Kg8 Rh2 Kh8 Be3 Rg1 Bg5 Bd3 Be7 Rcg2 Bd6 Be2 Bf8 Bh4 Bd6 Rf8 Be7 Ncb7 Ka4 Bf6 Bc5 Bd8 Bb4 Nc5+
3k1R2/4nqB1/R2K3N/1NB1r2n/1bbP1P2/3nnQBb/pn2BpR1/2r3n1 b - - 0 1 illegal: No possible last move, all moves rejected
b1NB1R1b/3b1b1N/n1q1b2r/3bp1Rn/2P1p1P1/2RBr2N/K5k1/2RQ3r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 a5 b6 h5 b7 a4 b5 a3 f5 h3 f6 h2 c3 a2 Kc2 h4 Kb2 h3 f7 d3 b6 d2 Ne2 Bg7 f8R Rh6 Qa4 d1B Nd2 Qe8 Rg1 h1B Nc4 h2 Qa6 Nf6 Rh8 Bb3 Rg8 Bh8 Rg6 Nh5 Qa4 Na6 Rb1 a1R b8N d6 b7 Be6 Rg3 Qc6 Nd7 Re8 b8R Bg2 Ng1 h1B Na3 Ba2 Nf6+ Ke5 Be2 d5 Re3 Kf4 Qd1 Bf3 Bd3 Kg3 Rg5 Kg2 Nb5 Bd7 Qc2+ Kg3 Qe2 Qb6 Rg7 Rf8 Qd2 e6 Re1 Bd1 Rg8 Bdb3 Ne8 Rf3 Be2 Bg2 Rg7 Bf1 Na7 Kg2 Nh3 d4 Ka3 e5 Nf6 d3 Nh7 Bf7 Rf8 Bde6 Qc2 d2 Rb3 d1B Bg5 Re3 Bd8 Qc7 Qb1 Bd7 Bb5 B1c4 Nc8 Bce6 Bd3 Bc6 Rg5 Ba8 Kb2 Qc5 Ra3 B2d5 c4 Ba4 Rc3 Bad7 Qc1 Rb1+ Ka2 Qc6 Qc2+ Kf3 Qa4 Kg2 Rf1 Rb8 Ra1 Rb1 Qb3 Rf1 Qd1 Rh1 Rac1
1Br3B1/bb2nn2/NN2q2n/N2Ppp1K/bP2R3/1N4Q1/1rk2R1b/4b1bB b - - 0 1 illegal: No proof kernel
2R3NR/b3rbk1/2n2pP1/1b2P2n/R5Bp/3BBQRK/qb2r3/2N1bn1b b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 c5 g4 h5 Kg2 b5 d4 b3 e4 h4 a4 b2 g6 c3 g5 c2 g7 b4 g6 b3 d5 f3+ Kh2 c4 e5 c3 a5 f2 a6 Qa5 d6 Nf6 g8B Bd7 a7 Bb5 Bd3 f1N+ Kg2 Nh5 Nf3 f6 Nbd2 b1B Bf5 b2 Be4 Ba2 Bd3 b1B Bgc4 Nc6 Rh3 Rh7 Rg3 Re7 Nh2 Qa6 Bg8 Bf7 Qf3 Qa2 Nb3 Rc8 Bf4 c1B+ Kh3 c2 a8R Bb2 Ng4 c1B Be3 Bd2 Nh6 Be1 Nc1 Rd8 Rc8 Bc2 Bf5 Be4 Bg4 Bed5 Qf5 Bh1 Qf3 Qb3 Ra4 Qa2 Nf5 Bh6 d7+ Kf8 Qd1 Bg5 Nh6 Kg7 Qf3 Be8 Bb3 Bf7 Ng8 Bf4 Bc2 Bh6 Bd2 Be3 Bd3 Bb6 Be3 Ba7 Rc7 Rb8 d8R Rb7 Rcc8 Rbd7 Be4 Rd2 Bd3 Rg2 Nh6 Rf2 Rh8 Re2 Ng8
3K1brr/nr2rN1n/1N2P2R/Nr2b3/3k1RpB/Rp1B3r/qb4P1/R6Q b - - 0 1 legal: proof: f4 a5 c4 g5 b4 axb4 f5 d5 f6 dxc4 h4 Bf5 h5 Bg6 hxg6 exf6 Qb3 f5 Qd1 f4 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5 Kf5 c5 d4 b5 a4 h5 a5 h4 g7 g4 a6 f3 e3 f2 a7 h3 Rh2 b3 Qe2 b2 Ra5 b4 Nf3 c3 Qd2 c2 Ra4 c4 Be2 f1R Rh1 h2 Ra2 c3 Ra3 Re1 Ng5 Nc6 Qd1 Qa5 Nd2 b1R Nc4 Nf6 g8R Nh7 Bd3 f6 Bd2 c1B Nf7 c2 Rg6 Bb2 Rh6 c1B Rf1 h1R Rf4 Rd8 a8R Rh3 Ra6 Re2 Be1 Na7 Bh4 Re8 Ra1 Qa2 Qh1 Bd2 Kg6 Bdc3 Ra3 Rb8 Kf5 Rb7 Kg6 f5 e4+ Ke6 e5 Kd5 Nd8 Rb5 Kf7 Rg8 Ke8 b3 Re4 f4 Nb7 f3 Kd8 f2 Rf4 f1R Nba5 Rb7 e6 Re5 Re4 Rff7 Rf4 Rfe7 Nb6+ Kd6 d5 Kc5 Rf5 Kd4 d6 Rb5 d7 Rf1 Rff6 Rff5 Rf7 Rfg5 Rf2 Rh8 Rff6 Rgg8 Rf4+ Kc5 Nd5 Be5 Nb6 Rf7 Ke8 Rfg7 d8N Rgc7 Nf7 Rd7 Rf3 Re7+ Kd8 Kd4 Rf4+
n2n1b2/1BN2Rb1/b1RP1R1B/2r5/pKQpR2B/4brP1/4N2r/3q1bkb b - - 0 1 illegal: No proof kernel
3r2Bn/1N2n1r1/1K1PnkR1/2pb1nRn/2R4q/2b1PnN1/1B2p1Q1/1r3R1B b - - 0 1 illegal: No possible last move, all moves rejected
1Rbq1bBQ/1n1p1K1N/4rR1P/BpP3N1/k5B1/7b/R2R1nr1/rr1rr3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 b5 Ke4 g5 a4 g3 h4 b3 c4 b2 f4 g4 a5 d3 f6 g2 Kf5 g3 Kg6 d2 f7+ Ke7 a6 Kd6 c5+ Kc6 a7 e4 f5 e3 f6 e2 h5 e1R h6 Re4 Ra2 Re1 Nc3 b1R Ne4 Kd5 Ng5 Nc6 N1h3 g1R Rh2 g2 Be2 Na5 Bg4 Kc4 Nh7 Kb4 N3g5 Nb7 Qe2 d1B Bd2+ Kb3 Qe8 Rh1 Bb4 g1R Rhd2 Rg2 Ba5 Be2 Qe5 Red1 Qb8 Rhe1 Qe5 Bf1 Qa1 Bd6 f8R Be7 f7 Nf6 Rg8 Ne4 f8R Nf2 Rf6 Re6 Re8 Bf8 Kf7 Rg8 Rf4 Ree1 Qh8 Rg6 Rf5 Rge6 Rf6 Rg3 Re2 Bh3 Red2 Rb8 a8B Rg2 Bc3 Na5 Baf3 Nb7 Ba5 Ra8 Bc3 Ra4 Ba5 Ra3 Bd5+ Ka4 Kg6 R6e3 Bg8 Re6 Kf7 Qc7 Rab2 Raa1 Bf5 R6e5 Ree6 Qd8 Rb6 Re6 Bg4 Nd6+ Kg6 Bg7 Rb8 Nb7 Kf7 Bf8 Ra2+
b2K3N/1q3NbB/1r4Q1/1p3BP1/qPNR1bb1/nB3pR1/N3r1n1/k1b1b3 b - - 0 1 illegal: No proof kernel
1R3Q1b/3r4/q1rR2nq/pr1rr3/P1prB2b/N3P3/N1n2N1N/B3kB1K b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h3 g5 Qb3 g3 Qb5 g2 Kd2 g4 Ke1 g3 Qb3 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bd6 Bd2 Be7 Bc1 Bf8 f4 Ke7 a4 Kd6 b4 Kd5 f5 Ke4 b5 h5 f6 d5 g5 a5 e3 c5 g6 d3 f7 c3 g7 d4 b6 c2 b7 h4 Qd2 h3 Bb2 c1R+ Qd1 d2+ Ke2 h2 Qe1 d1R Ra2 Ra7 Qb4 Ne7 g8B Qc8 Ba1 Nbc6 b8N Rd7 Qe1 Nb4 Rd2 Qa6+ Rd3 Rh5 Bc3 Re5 Qf2 Nc2 Bb4 Ng6 Bh7 Bg7 f8N Bh8 Nf3 g1B Ne6 g2 Na3 c4 Be1 Rb1 Bc3 Rbb5 Ba1 Rdd5 Nc6 Rd7 Qe1 Bf2 Qb4 g1R Qf8 Bh4 Nb4 Rg3 Rd2 d3+ Kf2 Rdd5 Rg1 h1Q Na2 Rgg5+ Rg3 Rgf5 Nf4 Rf6 Nh2 Rc6 Nh3 Rd7 Re2 d2 Re1 Bd8 Re2 Kd3 Rg1 Bh4+ Rg3 Qf3+ Kg1 Qf4 Kh1 Qh6 Rf3 Rdb1 Rf4 d1R Rf6 Rbd5 Rd6 Rb5 Re1+ Kd2 Nf2 Nf4 Be4 Ng6 Bh3 Rd4 Rg1 Ke2 Bf1+ Ke1 Rg4 Rdd5 Rf4 R1d4 Rf7 Rd8 Rb7 Rd7 Rb8
3B2nK/5rBB/3Qrbbp/n6b/1r2RR2/krpP4/1b1P1N2/q2BR1Nr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 e5 gxh4 e6 d5 Rh2 d4 Rh1 d3 cxd3 fxe6 Ke2 e5 Ke1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 c5 f4 b5+ Kb3 e3 g4 h3 a4 e4 g5 e2 f5 e1R f6 e3 g6 c4+ Kb2 Kc5 a5 e2 a6 b3 Kc3 h2 a7 b2 f7 b4+ Kc2 b3+ Kc3 Bg4 g7 Nc6 Qc2 Bh5 Ra4 Na5 Rb4 Rb8 a8R h6 Ra7 Qd6 Re7 Qa6 Re4 Rh7 Rf4 Bd6 f8B Qa7 Ra4 Rb4 Be7 Qa8 Bd8 Bb8 Na3 b1B Nb5 b2 Nd6 Ba2 Ne4+ Kb5 Kd4 b1R Bh3 R1b3 Bg4 Ba7+ Ke5 Bd4+ Ke6 Bb2 Nf2 Qa7 Qc3 Qa8 Qd4 c3 Qd6 Qa6 Ngh3 Qa7 Rf1 h1R Ng1 Ra3+ Kf5 Baf7 Ke5 Rab3 Re4 Ba1 Ba3 Bb2 Kf5 Bfg6+ Ke6 Nf6 g8B Rf7 Bh7 Ng8 Bf3 Rd4 Bc5 Rdb4 Bd4 Qa6 Ra1 Qa8 Rc1 Ka4 Bg7 Ka3 Rb1 Rc1 Ke5 e1B Bd1 Qa6 Nfh3 Bh4 Rff4 Be7 Nf2 Bg5 Bc2 Rf1 Rbe1 Bf6+ Ke6 Rh3 Bd1 Re3 Ne2 Rh1 Ng1 Rf8 Kd7 Rf7+ Ke8 Rd7+ Kf8 Qa8 Rc4 Re6 Rce4 Ka2 Bh8 Qc6 Qc7 Qa4 Qc6 Kb1 Qd6 Qa1 Nfh3 Ka2 Nf2 Bh4 Be5 Ka3 Bd4 Be7+ Kg7 Bh4+ Kh8 Rf7 Bg7 Bg5 Bf3 Bf6 Bd1
1B1r2k1/1bKb3N/1B1p1b2/R1RN2N1/bP2R1n1/1r1Pqp2/bbq5/4R1nQ b - - 0 1 legal: proof: h4 b5 f4 g5 a4 gxh4 e3 e5 c3 exf4 Bd3 c5 Bc2 c4 axb5 Qf6 b4 Qd8 Bb3 cxb3 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 Kf7 g4 f3 e4 h3 b6 b2 b7 h4 g5 h2 c4 d6+ Kd5 f2 c5 f1B c6 a4 c7 h3 e5 a3 Qf3 f4 Qg2 a2 Qe4 Nd7 Kc6 Bc4 b8B Bg7 d3 Bf6 Nd2 b1Q Qe3 Qe7 Qe1 Ra3 Ndf3 Qc2 Ne2 Rb3 Nc3 Nh6 e6+ Kg8 g6 Ng4 g7 Nde5+ Kb6 Bd7 c8R+ Qe8 Ng5 Nf3 e7 Ng1 Kc7 Bcb5 Be3 Ba4 Rb1 a1B Bb6 Bb2 Ra1 Nf3 Rg1 h1B Qd1 h2 Re1 Ng1 Qb1 Bab5 Ra5 Bd5 Qc1 Bdc4 Nd5 h1B Qd1 Ba4 Qb1 Qf8 e8R Bf3 R8e4 Qe8 Kb7 Bg2 Rcc5 Qe5 Kc7 Qd4 Qd1 Qe3 Nc3 Bd5 Qf3 Bb7 Nd5 Bh3 Qh1 f3 Rec4 Ne5 Rh4 Bhe6 Re4 Ng4 Nh7 Kf7 g8N Kg7 Nh6 Rd8 Nf7 Kg8 Nc3 Ra3 Nfg5 Ba2 Nd5 Rc3 B6a7 Rb3 Bb6
2r1n3/N2Nr2Q/2p1n2b/4pnBR/kP3R1n/1n2q3/BK1RN2P/Rb3q1n b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 d4 Kd7 Kd2 e5 Kc2 g5 b4 a5 f4 c3 b6 Kc6 b7 a4 f5 e3 f6 g3 f7 a3 Nd2 a2 Bc4 g4 Kb3 e2 Ba6 e1Q Ba3 g2 Qc2 g3 Qb2 c2 Qb1 c1N+ Kc3 Qe3+ Bd3 Qf6 Ndf3 Ra7 Qc2 Ne2+ Kc4 Nh6 Qb2 Nd7 Kb3 Nf5 b8R Bh6 f8N Nf4 Qb1 Ne6 Ne2 g1N Kc3 g2 Kb2 Nh3 Rf1 g1N Bc4 Nf2 Qd3 Rb7 d5+ Kb6 d6 c6 Bd5 Nh1 Nfd4 Nf3 Nb5 N3h4 Rf4 Qf7 Qc2 Nf6 d7 Ne8 d8R Rg8 Ra8 Re7 Na7 Ba6 Qe4 Bd3 Nd7+ Ka6 Rab8 Bb1 Rb7 Nfg7 Qh7 Ngf5 Rb5 Qf8 Rc5 Qf7 Rc2 Qf6 Rd2 Qf8 Nc8 Kb5 Na7+ Ka4 Rb8 Qg7 Bc4 Qg2 Ra8 Qf1 Rd8 N8c7 Rc8 Rh8 Rg8 Ne8 Rg5 N8c7 Bd5 Rc8 Rh5 Ne8 Bc4 Bc2 Rc1 a1N Ba2 Nb3 Ra1 Qb6 Kc3 Be4 Bc1 Bb1 Kb2 Qe3 Rd5 N8c7 Rc4 Qef3 Bg5 Ne8 Rd2 Qe3 Rf4
2rn1b2/1nn1N3/p1P1B1rQ/1p2RR1K/2q4N/nb1PR1BB/2r5/2kBr2r b - - 0 1 illegal: No proof kernel
4K3/2QBNN1P/2NR1b2/3n1PR1/2k1nnpp/1b1n1rBq/3N1r1b/4Rbb1 b - - 0 1 illegal: No proof kernel
6K1/1r2B2p/2BN1N1Q/R1n1b1P1/pR2bN2/2qkB1b1/Pbr2r2/2bnr2B b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b3 g5 b4 gxh4 bxc5 d5 Qe2 dxc4 Qf3 Qd3 Qd1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 Kd4 f4 e5+ Kh5 a5 g4 b5 c6 a4 g5 b4 d3 c3 f5 h3 c7 e3 f6 b3 f7 c2 Qd2 h2 Nh3 e4 Qg2 e2 Na3 e1B Nf4 b2 Qh3 b1R Rg1 h1R Rg4 e3 Bd2 c1B Nc4 e2 Nd6 Bf5 c8B Nh6 Bd7 Be4 Bc6 Qa5 Bg2 Rb7 Rb1 Na6 Rb5 Bg7 f8N Nf5 Nd7 Bg3 Nf6 Qc3 Ra5 Re1 Bh1 Nc5 Qh4 Rhf8 Be3+ Ke5 Qh2 Rac8 Rh4 Nh6 Qh3 Ng4 Qh2 Nf2 Qh3 Bh8 Kh6 Bh2 Ng2 Rcb8 Nh5 Rb2 Qd7 Qc4 Rf4 Rc2 Qh3 Bg6 Rh4 Qb3 Rb4 Nd1 Qh4 Bg3 Qh3 Rff1 Ngf4 Bb2 Qh2 Be4 Qh4 Qc3 Qh2 Bf6 Qh3 Bd8 Kg7 Rb7+ Kg8 Rf2 Qh4 Ref1 Qh3 e1B Qh4 Bd2 Qh2 Bdc1 Qh3 Bb6 Nf6 Rg1 Qh6 Re1 Nb5 Ne6 Nd6+ Bd5 Nb5 Kf5 d4 Bf3 d5 Bc7 d6 Nc5 d7 Be5 d8B Bg2 Na3 Bf3 Nc4 Bg2 N6d5 Ke4 Be7 Bf3 Ne6 Kd3 Nf6 Bd5 Nd6 Be4 Nf4+
2k2qRR/q4nP1/1np3BP/2b3n1/RN1nR1r1/2n1r2p/N3Q2B/2N1Kn1b b - - 0 1 illegal: No proof kernel
8/5Bpb/1r4b1/1prbBRQR/kn1n3K/1RPN4/1b1brBNP/3qB1r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 a4 e5 f4 d5 Kf2 Kd7 Kg3 Kc6 f6 e4 f5 b3 a5 b2 a6 e3 c3 e2 a7 Kb5 f7 d3 f6 e1B+ Kg2 d4 Ne2 g3 Bf4 d2 Nc1+ d3 Ne2 Nh6 Ra3 Bf5 Be5 Bh7 Kh3 g2 Qc1 d1B Nf4 g1R Ng2 Nf5 Qg5 Bb3 Nd2 b1R Nf3 Bd2 Nfe1 Nd4 Kh4 Bd5 Rb3+ Ka4 Bg3 Bd6 f8B Nbc6 f7 Ba3 Bc5 Bb2 f8B Rc8 Bfd6 Re8 Bde5 Nb4 Be2 Re6 Bh5 b5 Bg6 Rb6 Bf7 Ra1 Bf2 Ra2 Be7 Rc5 a8R+ Ra6 Rb8 Rb6 B7f6 Qd6 Rh8 Bf4 Be7 Qg6 Qh5 d2 B7f6 d1B Bg5 Bg8 Qh6 Qc2 Bg3 Rf1 Bh5 Ba3 Bf7 Bh5 Nd3 Bg6 Be1 Qd1 Rg1 Bfc1 Be3 Re2 Qg5 Bd2 Rh5 B8h7 Rh1 Rf3 Rf1 Bb2 Ngf4 Rg3 Rf2 Rg1 Ng2 Ndc2 Rf5 Nd4 B3f2
2n1r1B1/rBKp1N2/p1Nrbb2/RQbk2BN/2P5/1RP2b2/rN1q2rn/8 b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 b5 h5 bxa4 h6 gxh6 Nf3 h5 Ng1 h4 Kf2 Ke7 Kf3 Kd6 Ke4 c5 b4 h5 g4 f5+ Kf3 c4 e4 a3 e5+ Kd5 e6 a2 d3 a6 e7 h3 e8N h4 b5 h2 b6 h3 b7 Bc5 g5 Qa5 g6 Ne7 g7 Ra7 Nd6 Re8 Na3 Qd2 Ne4 Nbc6 b8N Bb7 Nb1 Nc8 Ne2 Nd4+ Kf2 f3 Kg3 f2 Nd6 Bc6 Bg2+ Nf3 Nf7 f1R g8B f4+ Kg4 Re1 Kf5 Rg1 Ng3 Bb7 Nc6 Ba8 Bf1 Rg2 Nh5 Bb7 Rg1 h1R Be2 Nh2 Bf3+ Re4 Re1 Rhg1 Qe2 Rg6 Qg2 Rd6 Qg5 Rg4 Bh1 f3 Rf1 f2 Rd1 f1B Bg2 Be3 Nc3+ Kc5 Re1 Re8 Nd1 Bd4 Bh1 Rg2 Nb2 Kd5 Rb1 a1B c3 Bf6 Nd1 Ba8 Rb3 Bb2 Re3 Ba3 Nb2 Bc5 Re1 Qc2 Bf4 Qe2 Ra1 Qd2 Ra5 Be2 Qh6 Bf3 Bg5 Re1 Qf8 Ra1 Qd8 Ra2 Qb6 Bg4+ Kg6 Be6 Qb5 Be7 Kg7 Bf6+ Kf8 Nf1 Ke8 Bg4 Rba3 Ke6 Qb4 Rf2 Ne7 h2 Bb7 h1R Kd8 Nh2 Be4 Re1 Rb3 Rg2 Bf3 Be4 Qb5 Bef5 Ba8 Bf3 Bb7 Ree2 Kc7 B5g4 Nc6 Kd5 Bf4 Re8 Bg5 Be6 dxc4+
q2N2N1/1Pr5/2prBn2/p2Qbb2/P1K2k2/1r4rR/3NrB1n/bb2BBR1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 b5 d3 bxc4 Be3 cxd3 Bh6 Nc6 Bc1 Nb8 Kd2 Kf7 Kc3 Kf6 a4 Ke5 b4 d5 g4 h5 f6 a5 g5 h3 g6 c6 b5 h2 f3 h4 g7 d2 b6 d4+ Kd3 h3 b7 Rh7 f7 Nh6 g8B Ng4 Qe1+ Kf4 Bg2 e5 Qd1 e4+ Kc4 e3 Ra3 e2 Kd3 e1B Ra2 Bg7 f8B Be5 Ra3 Bf5+ Kc4 d3 Bd6 Rc7 Bb4 Nd7 Nc3 Ndf6 Be6 Qh8 Qb3 Rg8 Bf1 Rgg7 Ne4 Qa8 Bb2 d1R Bd4 d2 Bf2 Rb1 Qd3 d1R Qd5 B1c3 Ra1 Nd7 Nf6 Rb3 Ng8 Ndf6 Rb1 Ba1 Bbe1 Rd2 Rc1 Rgd7 Rd1 Rd6 Rb1 Re2 Rd1 Kg5 f4+ Kh5 Nf3 Bb1 Rg1 h1B f5 h2 Nd2 Kg5 Rc1 Kf4 Rc3 Bhe4 Rcg3 h1R Rh3 Nh7 f6 Nh2 f7 Nf6 f8N Bf5 Nh7 Rg3 Ng5 Rb3 Nf7 Rg3 Rg2 Rg1 Nd8 Rb3 Rg6 Rgg3 Rg7 Rge3 Rg2 Rg3 Rg1
2N1nN2/Rp2b3/1bR1b1P1/q1Bn1b2/2NKB3/Nr1Qp3/4b1Pq/r3bB1k b - - 0 1 illegal: No proof kernel
Q5B1/pN2br2/b1b1KNPn/2b1B1rp/kN6/3RnB1P/1q1b4/2Nb1qR1 b - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Kf2 Kd7 d4 f5 c4 e5 g4 h5 b6 Kc6 b7 f3 Ke3 f4+ Kf2 e3+ Ke1 f2+ Ke2 b3 Kd3 e2 Ke4 e1B h3 f3 c5 b2 g5 Bd7 Nd2 Na6 Be2 f1Q Ra3 b1B+ Rd3 Kb5 Kd5 f2 b8N e4 c6 e3 c7 Qf6 c8B Bc5 Ne4 Rh7 Bb2 Nh6 Nc6 Bd2 Bf3 e2 Nb4 e1B Ne2 Rf7 Rg1 Bc2 Nc1 Ka4 g6 Rb8 Bc3 Rb5 Bb7 Qb6 Nf6 Bc6+ Ke6 Bg5 d5 Bed2 Qe1 Bd1 d6 Ra5 d7 Nc7+ Ke5 Qb5 d8N Nd5 Qe4 Ne3 Ke6 Qb6 Be5 Qb5 Ng8 Bge7 Nf6 Qb6 Ba6 Qb7 Bc4 Qb8 Nba2 Qb2 Nb7 Rf8 Nd6 Bd4 Bg3 Be8 Nb4 Rg5 Qa8 Bc6 Be5 Bc5 Nb7 Qe2 Rc3 f1B Bcd5 Qg2 Rb3 Ba6 Rd3 Qf1 Bc4 Bd5+ Kd7 Be4 Bg8 Rf7 Ke6 Bd5+ Kd7 Bc6+ Ke6
2nR3R/3B4/1rrr2r1/1k2b1Pp/BN1BnQbK/1N4B1/Pn3Npn/5qb1 b - - 0 1 illegal: No possible last move
R1b1qB2/3B1N2/2bKB3/1pQB3P/r1r2PrN/2kp3n/b1r1Nb2/2R2n1n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 c3 Kf7 Ke2 Kf6 Kd3 Ke5 Kc4 d5+ Kc5 b5 h4 g5 a4 b3 f3 b2 a5 g3 a6 g2 a7 g4 f6 g3 f7 Nc6 Ra2 Na5 Be2 Nf6 Bd2 Nc4 Bf1 Nh5 Kc6 Ne3 Be2 Qe8+ Kc7 e6 Na3 b1B Nc2 Bc5 Ra4 Ba2 Nh3 g1R f8N g2 Na1 Ng3 f4+ Ke4 Nc2 e5 Bg4 Kd3 Ra6 e4 Ng6 Rg8 Qb1 Rc1 h5 g1N Ng5 Nh3 Nf7 Rg7 Rd1 Nh1 Be6 Nf1 Nh4 e3 Qb4 e2 Bd7 e1R c4 Rg4 Ra5 Ba6 Kc6 Bb6 c5 Bc8 Qa3+ Kc4 Bb4 Re7 Qe3 Re4 Qf2 Kb3 Ba3 Kc3 Ra6 d3 Nd4 d2 Ne2+ Kb3 Ra5 Rc2 Rc1 d4 Ra6 Rb8 a8B d3 Kd5 Rec4 c6 Bb7 Bf8 Rc8 Ra5 Ra4 Qd4 Rc7 Qe5 Bf2 Kd6 Rc8 c7 Kc4 Nd4 Kc3 Qe3 Ba6 Bd5 Bb7 Ra8 Ba6 Bc4 d1B Bde6 Bf3 Qe5 Rb8 c8B Be4 Bcd7 Rc8 Qd5 Rc5 Bb3 Bc8 Qe5 Bc6 Ne2+ Kb4 Qe3 R5c3 Bbd5 Rc4 Qc5+ Kb3 Ng1 Kc3 Ne2+
R2r1qb1/bB2Bbrn/k7/P4K2/R1N1n1Qr/n1rB4/1R1pN1pP/5b1B b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 g5 Kf3 b5 Ke4 f5+ Ke5 d5 c4 Kd7 e4 Kc6 a4 Kb6 h6 d3 c5+ Ka6 a5 d2 h7 g4 c6 d4 c7 g3 Nh3 d3 Qf3 d1R Ra2 b3 Bg2 b2 Na3 b1N Bb2 d2 Bd4 b4 Nc4 b3 Nf2 b2 Nb6 Be6 Nc4 Na3 Ba7 b1R c8B+ Rb7 Ng4 Rc1 Qd3 f3 Rd1 f4 Nh6 f2 Qe2 f1B Nf5 f3 Rb2 f2 Qg4 Nf6 Nd4 Rc3 Ra1 Bf7 Bh1 g2 Ne2 Nbd7+ Kf5 Bc5 e5 Ne4 e6 Ndf6 e7 Qf8 e8B Bb6 Bb8 Ba7 Bd6 Bg8 Bg6 Rb8 Bd7 Rd8 Bc6 Rg7 Be7 Bf7 Nf4 Bd3 Ne2 f1B Ba8 Bb1 Bd5 Ba2 Ba8 Rhg8 h8R Rh7 Bd5 Rh4 Bc6 Nh7 Bd5 Bb3 Bc6 Nc2 Ra4 Rg7 Ba8 Nef6 Be4 Na3 Bd3 Bg8 Bf7 Ba2 Bd5 Bf7 Ba8 Ne4 Bc6 Bb3 Bb7+ Kb5 Ne3+ Bc4+ Bf6 Rdd7 Bc8 Qd6 Rd8 Qf8 Bb7 Rd6 Bb1 Bg8 Ra8 Rd8 Bd3+ Kc5 Ra2 Bbf7 Nc4 Kb5 Rc2 Rd6 Be7 Rd8 Bd5 Ka6 Rb2 Nb1 Bc6 Na3 Bb7#
1r2b1Bb/3n3n/Q2nb1r1/PBnp1b2/1qpr4/BP3R1N/5N1K/k1BRN3 b - - 0 1 illegal: No proof kernel
3B4/1n2P1R1/B1r3rp/b2Ppb2/n1Nq1RQR/1br1rNB1/2B1b3/n1k1K3 b - - 0 1 illegal: No proof kernel
2r4N/3bp1B1/1QR2nP1/4nPNk/2r1bbR1/3rn2p/qnB3R1/2N2bNK b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 b4 Kf7 f4 Kg6 Kf2 a5 g4 d5 Kg2 h5 c4 a4 g5 a3 c5 d3 b6 e3 b7 e2 b5 e1N+ Kh2 a2 c6 d2 b6 d4 c7 d3 Ba3 Bh6 Bb2 Ra4 Nc3 Nc2 Ne4 Nd7 b8N Ne3 Qb3 d1N b7 d2 Bg7 Ne5 Na6 Nf6 b8N Qg8 Qb6 Bd7 c8R Qe6 Rcc1 Rc8 Nac5 Qf7 Rab1 a1R Rb2 R1a3 Nc6 Qa2 Nd3 Rc3 Rbc2 Nb2 Nd8 d1B Rg2 Be2 Nf7 Rb3 Rc5 Rc4 Nc1 Bd3 Be2 Ra3 Bd1 Bf1 Rg4 Rd3 Bb3 h3 Rc7 h4 f5+ Kh5 g6 Rd6 Nh8 Rd3 Ba4 Rb8 Rc6 Rc8 Nf3 Bf4+ Kg1 Rd5 Bc2 Rd3 Neg5 h2+ Kf2 h3 Rhg1 h1B R1g3 Bhg2 Kg1 Be2 Kh2 Bgf1 Ng1 Bd1 Kh1 Bf3+ Rg2 Bd5 Qd4 Be4 Qb6
7B/2QP1nRb/qR1pP1n1/1p1r1Br1/bN2b2n/2k2Nn1/2r2b1K/2R1NR2 b - - 0 1 illegal: No proof kernel
Nk1r4/1r2B1NN/q3nBRn/2p3N1/1RP3b1/q4pn1/nr1P2Br/2Q3Kb b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 Ke2 a5 Ke1 axb4 f4 hxg4 Kf2 e5 Qf3 e3+ Ke1 e4 Qe2 Bd6 Qd1 Be5 fxe5 Ra4 Bb2 Ra3 Bc1 Ra8 c4 Kd7 a4 c5 h4 Kc7 e6 g5 h5 f5 e7 b5 a5 g3 a6 b3 a7 b4 h6 e2 h7 f4 Rh3 b2 Qa4 g4 Bg2 b3 Bh1 g2 Kf2 e1N Qb5 e3+ Ke2 g3 Qa6 Nc2 Qa2 Nh6 Nf3 g1R Ne1 g2 Rh4 Nd4+ Kd3 e2 Qa3 Na6 Qa2 Qd6 Nc3 b1R Qa3 b2 Rg4 Ne6+ Nd5+ Kb7 e8N Nb4+ Ke4 Qa6 Kf3 Na2 Kf2 Bd7 Nf3 Rd8 a8N Kb8 Ng5 e1Q+ Kf3 Qh4 Ng7 Qh3+ Kf2 Rd1 Rg3 g1N Nf6 Ne2 Bg2 Rh1 Rg4 Ng3 Qc3 Rhg8 h8B Rh2 Nfh7 Rge8 Kg1 Re7 Qa3 Bc6 Qc3 Rb7 Qc2 Nc3 Ra4 Na2 Rb4 Bd5 Bf1 Bh1 Bg2 f3 Rh4 Qf5 Rg4 Qd3 Qd1 Qda3 Qe1 Ra1 Qd1 b1B Bb2 Bd3 Bf6 Rb1 Qc1 Rb2 Be7 Bg6 Nf7 Bc2 Rg6 Bf5 Nfg5 Bg4 Ne8 Qb6 Bhf6 Qba6 Ng7
rR3n2/2K2R2/2bn1qn1/1pb2BbQ/3pBRrB/Pk2q3/P2b1N2/n4N1R b - - 0 1 illegal: Other
5b1B/2N1R3/4rn1R/p1K2k1b/bN1P1qr1/QrpR4/5BPr/bB1q2Rn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 e4 Ke6 b4 c5 b6 f5 e5 a5 b7 h5 b5 c3 b6 f3 Ke3 c4 d3 h3 Qc2 f4+ Ke4 h4 Ra2 f2 Nd2 h2 Ba3 h3 Bb4 f3 Qa4 c2 Bc3 c1B Nb1 Nh6 Rb2 Ra6 Rb3 Nd7 Kd4 Bb2 b8B Ng4 b7 Rg8 Ba7 Ba1 b8R Kf5 Na3 Re6 R8b6 Ndf6+ Rd6 Qc7 Nb5 Bd7 Ne2 Rg7 Rg1 h1R Qa3 h2 Nc1 Qd8 Nc7 Ba4 Be2 f1B Kc5 f2 Bf3 Be2 Na2 f1Q Nb4 Nf2 Bc6 Bh5 Be4+ Kf4 Bb6 Rg4 Bd4 Qd1 Rc3 Qb8 Bh7 Re7 e6 Re8 e7 Kg5 Rc2 c3 Rd2 Kf4 Bg8 Kf5 Ba2 Rg3 Bb1 Rg4 Ne6 Qc7+ Rc6 Qf4 Nc7 Rb8 Rd6 Rb7 e8R Rb8 Re7 Rb7 Rf1 Rg1 Rc6 h1R Re6 Rh2 Rfe1 Nh7 Bh8 Nh1 Rh6 Nf6 Ba7 Rf1 Bb6 Rf3 Rg1 Re3 d4+ Re4 Rd3 Re6 Ba7 Qe4 Bb8 Rbb6 Ncd5 Qe3 Bg3 Qf4 Nc7 Rb8 Bf2 Rb7 Nba6 Rb3 Nb4
QK2b2B/1bB4n/q4Pn1/2r2RNB/q2Pbb1N/1RnpN3/n2p4/N1k2r2 b - - 0 1 illegal: No proof kernel
1K3b1b/2R2nb1/1B2Prk1/1pB4R/B3QrP1/qBNqpnq1/6N1/4Nb1q b - - 0 1 illegal: No proof kernel
N2n1Rrk/Nn2r1R1/nP1r1p1B/3P3p/1q3Qb1/qr3Bn1/N5NK/4b1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 c5 g4 h5 Kg2 a5 e4 h3+ Kh2 f6 b4 Kf7 d4 Kg7 e5 a4 b6 a3 b7 f3 b5 a2 e6 f2 e7 c3 d5 c4 b6 c2 g5 c3 g6 Ra7 Nd2 Nh6 Be2 f1R Ngf3 Bg4 Ne1 Na6 b8B Rg8 e8N+ Kh8 Bb2 c1R Ng2 c2 Ne4 Rf3 Rg1 Re7 Qd2 Nf7 Qf4 Qd6 Bd4 Rb3 Bf3 Nd8 Nc7 Qb4 Na8 Re1 Nc3 c1Q Bd6 R1e6 Be3 Qca3 Bdc5 Rd6 g7+ Kh7 Rae1 a1N Bd2 Rdd7 Na2 Rd6 Kg3 h2 Re2 h1N+ Kh2 Ra7 Re8 Ng3 Bd4 Re7 B4e3 Rh8 g8N Bh6 Bc5 Bg5 Rf8 Bh4 Rc1 Kg7 Bg1 Kh7 Rc7 Kg7 Nh6 Rg8 Nf5+ Kh8 Nd4 Ne4 Rc4 Be1 Nb5 Ng3 Rc1 Nb7 Rb1 Nc2 Na7 Nd4 Rc1 Ne6 Rc7 Ned8 Bde3 Re5 Rg7 Re8 Qc4 Re4 Bh6 Re7 Qf4
7b/K1nqrRbp/N1q2RQn/5r2/B1B2B1P/1nkP4/3q1p2/nNN2qN1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 g5 b5 gxf4 b6 d3 Ba3 axb6 Bb2 b5 Bc1 b4 c3 d5 Nf3 d2+ Kf2 d4 Ng1 d3 Qc2 Bf5 Qb3 d1N+ Ke1 Nb2 Kf2 d2 Kf3 Bd3 exd3 Nd1 Ke2 Ra7 Qa3 Ra4 Qb3 Ra8 a4 Kd7 g4 Kc6 h4 Kc5 c4 Kd4 c5 f5 a5 b5 c6 e5 a6 e4 a7 e3 g5 Qd7 g6 Bg7 c7 Na6 c8B Nh6 Rh3 Re8 Bg2 f3+ Kf1 f4 Qe6 b3 Na3 f2 Ke2 b4 Qf5 b2 Bc6 b1Q Rf3 b3 Ba4 Nc7 Ba6 b2 Bc4 Kc3 Qe4 Bh8 g7 Qc2 g8N b1N Qg6 Re7 Nf6 Rf8 Nh5 Rf5 a8N Bg7 Ng3 Bh8 Kf1 e2+ Kg2 e1B Kf1 Ne3+ Ke2 Ncd5 Nc7 Bg7 Na6 Nc7 Ra2 Bh8 Rb2 Bg7 Rb7 Bh8 Bab5 Qa4 Rb6 Nc2+ Re6 Na1 Bc6 Qc2 Ba4 Be5 Rf6 d1Q+ Kf1 Bd4 Be3 Qdd2 N3e2+ Kb2 Nc1 Kc3 Rf7 Bg7 Kg2 Qa2 Kf1 Qdc2 Rf6 Nd2+ Ke2 Bh8 Rh3 Ndb3+ Kf3 Ne6 Ke4 f3 Bf4 f1Q Rg3 f2 Rf3 Bd2 Rf7 Be3 Rf6 Bd4 Rf7 Qc8 Rf6 Be5 Kd5 Nc7+ Kc6 Qd7+ Kb7 Qab2 Rf7 Beg7 Ka7 Qd2 Re3 Qbc2 Re6 Qcd1 Rd6 Qf3 Rdf6 Qfc6 Nb1+
2N1R1bB/1r3p1q/rr1N1B2/P1Kbq2p/P3B2n/1RBN3k/r2b1Q2/4n1b1 b - - 0 1 illegal: No proof kernel
n7/4P3/2R2QbK/3P1Rp1/2NbR1NB/pr2qqNn/1nq3kR/1qnBr3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 e4 Kd6 b4 Ke5 h4 c5 h5 g5 h6 f5 b6 a5 d3 a4 b5 g3+ Kf3 c3 b7 a3 b6 c4 h7 c2 Rh4 c3 Be2 g2 Bf1 Qd4 Rh3 Nf6 Bd2 c1Q Rg3 c2 Ne2 Na6 b8R Bc5 b7 Nd5 Rg4 Nac7 Be1 Nb6 Bh4 Nc4 Nd2 Re8 h8N Nb2 Ng3 Bb6 Be2 g1N+ Kg2 Ba7 Qf1 Nh3 Bd1 Qe3 Ng6+ Kd4 Ne5 f3+ Kh2 f4 Ndc4 Bf5 Rc8 f2 b8R f3 Rb5 Rb8 Rb1 Na8 Rc6 Bc5 Rf4 Rb7 Ng4 Bg6 e5+ Kd5 Ra5 Rb3 e6 Re7 Ra4 Bd4 Rb4 Qcd2 Ra4 c1N Rf5+ Be5 d4 Qc2 Qg2 f1Q Qf2 Qfd3 Ra1 Qb1 Qf1 f2 Kg2 Reb7 e7 Qdc2 Kh2 Qed2 Rb4 Re3 Kg2 Re1 Kf3 Rb8 Nh2 Rb5 Kg4 Qe3 Ra4 Rb3 Rb4 Bh7 Kh5 Bg6+ Kh6 Qed3 Rf7 Qe3 Ng4 Bh8 Rf5+ Be5 Ne2 Ke4 d5 Bd4 Ra4 Qf4 Rb4 Kf3 Ng3+ Re2 Qe1 f1Q Qc3+ Kg2 Ra4 Re1 Rb4 Be3 Qf6 Bd4 Ra2 Bc5 Rb5 Qe3 Ra1 Re2 Nb6 Qa2 Rb4 Qff3 Re4 Bd4 Nc4 Ncd3 Rb1 Qcd2 Rc1 Qb1 Bc2 Qc3 Re1 Nc1 Bd1 Qcc2 Rh1 Re1 Rh2+
b2nBbKB/1RP2r1n/kbr1NpN1/1QPp2b1/1q3R2/8/nN1N4/q3R1n1 b - - 0 1 illegal: No possible last move, all moves rejected
1B2qN1R/kpQq1nKp/N2b3R/bb1q2B1/2B5/1rPb1q1P/5n2/1R1B3r b - - 0 1 illegal: No possible last move
2Nrb2B/P1K3N1/rRp2b1n/2rqN2q/6bk/N2Bp1Q1/3BP3/3nR1rb b - - 0 1 legal: proof: g4 d5 h4 a5 b4 axb4 c4 f6 g5 fxg5 cxd5 gxh4 Qb3 h3 Qc2 Bd7 Qd1 Bc8 f4 Kf7 Kf2 Kf6 Ke3 h5 Kd4 g5 Kc5 b5 a4 e5+ d6 e4 d4 c6 d5 h2 a5 g4 f5 h4 a6 b3 Nc3 g3 Bb2 Kg5 f6 b4 f7 g2 Qc1+ e3 Rb1 h3 Qe1 Nh6 Qg3+ Bg4 Nb5 Be7 f8B Bf6 d7 Ra7 Bc3 b2 Kd6 b3 Na3 Qe8 d8N Nd7 Bd4 Qh5 Nb7 Nb6 Kc7 Na4 d6 Nc3 d7 Nd1 Bb4 Rd8 Bd2 Raa8 Nd6 Ra7+ Kb6 Raa8 Nc8 Ra7 Rc1 b1B Be5 Bh7 Rb1 b2 Bd4 Ra8 Kc7 Bg6 Be5 Be8 Nf3+ Kf5 Bd4 g1R Ne5 Kg5 Bg2 Ra7+ Kd6 Ra8 Be4 Ra7 Bd3 Ra8 Rc1 b1R Kc7 Rb5 Rb1 Ra5 Rb6 Rc5 Qf4+ Kh4 Ba1 Rg2 Re1 h1Q Qh2 Rg1 Qg3+ Kg5 Bd4 h2 Bb2 Qd5 a7 Rb8 Ra6 Rb4 Rb6 h1B Bd4 Ra4 B4c3 Bf7 Bd4 Ra6 Bb2 Rf8 d8N Be8 Bbc3 Qg6 Ne6+ Kh5 Qf4 Kh4 Ng7 Qh5 Qg3+ Kg5 Qg2 Bd7 Ng6 Be7 Qg3 Rd8 Nf5 Be8 Bh8 Bf6 Ng7 Bg2 Qf3 Bh1 Ne5 Kh4 Qg3+
1qB2R2/1nN1K3/1b1RQnR1/2q2p1N/2N1Pbr1/b2p1P2/n2k1Bb1/1b2q2R b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 Bb2 axb4 Bc1 h5 c4 hxg4 Bh3 b5 Qd3 b3 Qd1 b4 Bg2 Ra5 Bf1 Rb5 cxb5 Qe7 Qd3 Qh4 Qd1 Qd8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 a4 g5 b6 c5 e3 f5 b7 d5+ Kb5 b2 h5 g3 h6 d3 h7 g4 a5 c4 a6 b3 a7 d2 a8R d4 R8a5 c3 Qc2+ d3 Qd1 g2 Ra6 c2 R1a2 g3 Qe2 d1N Qd2 Nc6 b8N Ba3 Ne2 g1B Qe1 g2 Nf4 Na5 Nh5 Nb7 Rg6 Nc3+ Kc6 Nf6 Na6 Rg8 h8R Rg7 Ra1 Na2 Nc7 Kf3 Bd2 c1B Rf8 Be6 Bc3 Qb8 Bd4 Bf7 Qb4 Be6 Qe7 Bg8 Qe6 Bf7 Nc3 b1Q N3b5 b2 Nd6 Qc2+ Bc5 b1B Nc4 Qd1 Ba7 Qe1 Bc5 Ng8 Kd7 Nf6+ Ke7 Rg8 Rh6 Rg4 Rg6 Be8 Rh2 Bc6 Rh1 Bab2 Bb6 Be5 Bc5 Ba3 Be2+ Ke4 Bd1 Bd5 Bb3 Kf3 Ba4 Ke2 Bd7 Bf4 Bc8 Bf3 e4 Kd1 Nd6 Kd2 Ba7 Bgh2 Bc5 g1Q Bb6 Bg2 f3 Bhg3 Bf2 Be3 Re8 Bb6 Rf8 Bc2 Rc1 Bb1 Rc6 Bf4 Kf7 Kd1 Nc4 Kc2 Rd6 Kc3 Bg3 Qc5 Ke7 Kc2 Bf2 Kc1 Ne3 Kd2 Nc4+
n1rBBrr1/Rrb1p2N/2K1b1bP/1R6/2NB4/2p3qb/2P1R2k/Q3b1Rr b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 axb6 Bh3 b5 Bf1 b4 f3 g5 Kf2 g3+ Ke2 Nd7 Ke1 Ndf6 f4 g4 Bd3 Nh7 Bf1 Ng5 fxg5 Qd3 Ba3 Qd4 Bc1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 a4 f5 h4 c5+ Ke3 Ke5 d3 f4+ Kd2 g2 g6 f3 Ke3 b3 h5 b4 g7 b2 a5 g3 a6 f2 h6 b3 a7 c4 Bd2 c3 Qc1 Nf6 g8R Bf5 Nh3 g1R Qe1 g2 Ra6 Rc8 a8R Qc7 Nf4 Bg7 Qe2 Bg6 Rh2 Ne8 Rb8 Rh1 Nh5 g1R Na3 b1R Qe1 b2 d4+ Kf5 d5 Kg4 d6 Be5 Bd3 f1B d7 Bh3 d8B Qd6 Rf2 Nc7 Rb5 Na8 Nf6+ Kg3 Nc4 Rg2 Ra1 Kh2 Re2 Bg3 Rg7 Rf8 Nh7 Qf4+ Kd4 e3+ Kd5 Qg5+ Bf5 Bc7 Kc6 Qg3 Rf2 e2 Bd7 Re8 Be3 Rf8 Qf1 e1B Re2 Be4+ Kc5 Qh4 Rb4 Bf2 Rf7 Rgg8 Be8 Bg6 Bd4 Qg3 Ra7 Rd1 Na3 b1B Kc6 Ba2 Rf3 Bae6 Nc4 Ra1 Qe1 Ra3 Qa1 Rb3 Rd3 Rb2 Rd1 Rb1 Rg1 Rb2 Rba4 Rb1 R4a5 Rb7 Re4 Be1 Rb5 Bgf7 Ree5 Bg6 Re2+
1qB5/2n1kp2/r4PrR/4qP1K/1p2N1rB/R1B2r1R/qb2b3/1r1QrNB1 b - - 0 1 illegal: No possible last move, all moves rejected
2r5/1Kb4p/2Nb1Rq1/k1B2pR1/q1q1B3/PQ2qPN1/1q2N3/1n1bRqrN b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 Bd2 axb4 Bc1 g5 e3 gxh4 Rh2 d5 Rh3 d3 Rh1 d4 e4 Nd7 Bf4 Ndf6 Bc1 Nd5 exd5 Ra5 Rh2 Ra7 Rh1 Ra8 Kd2 Kd7 g4 Kc7 c4 Kb6 d6 e5 a3 e4 d7 b3 c5+ Ka5 g5 b5 c6 h3 g6 e3+ Ke1 h2 g7 d2+ Ke2 d3+ Kf3 b2 Ke4 b4 Kd5 e2 c7 e1B Kc6 b3 Qh5+ Qg5 d8N d1Q Nh3 d2 Bg2 Bd6 Qh6 Qdg4 Be4 d1Q Rg1 h1Q Qh4 Nf6 g8R Nd5 Be3 Nc3 Bc5 Qe3 Re8 Rg8 Re6 f6 Rg2 Qf1 Qg3 Ba6 c8N Be2 Ne7 Rc8+ Kb7 f5 Rf6 Qg6 Nd2 b1Q Nd5 b2 Ndf4 Qbd3 f3 Qa4 Nf2 Bc7 Nh1 Bd1 Ne2 Qdc4 Qf2 Bd6 Rg5 Nb1 Qh2 Beg3 Nc6+ Kb5 Qh6 Bc7 Qf8 Bgd6 Qf7 Rg7 Neg3 Rgg8 Nb3 Rg7 Nc1 Rgg8 Nb4 Ka5 Nce2 Nd2 Qe8 b1Q Rg4 Qgf7 Nh5 Qb2 Rc1 Bc2 Re1 Nb1 Qe6 Qcb3 Qc4 Bd1 Rgg6 Qbd3 Qb3 Qdc4 Rg1 Rg3 Rg2 Qg6 Rg1 Rh3 Rg5 Rh2 N5g3 Rg2 Bd5 Rg1 Bc6 Qa2 Be4 Qb2 Nc6+
n1B2rbb/1KNp1n2/1b1q1PN1/1QR1b2q/1p5B/2qNbk2/1P4N1/B4b1R b - - 0 1 illegal: Other
N1Kb1NRQ/b1pB4/kp6/bqb1Nn2/4b3/1PB1r3/PR2n1R1/2qR1qb1 b - - 0 1 illegal: No proof kernel
1kq2B1b/n1b2B2/3prn2/N1NPR3/1nqNN1bK/b1Q4p/P7/2b2nRR b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c4 gxh4 Qa4 b5 Qa3 Ra5 Qf3 b3 Qe2 b4 Qd1 Rb5 cxb5 Ba6 Ne2 Bb7 Ng1 Bc8 g4 e5 f4 h5 Kf2 c5 d4 h3 Kg3 e3 b6 h4+ Kf3 c4 b7 e4+ Ke2 b2 d5 b3 f5 h2 g5 c3 f6 c2 g6 h3 g7 Ba3 Nc3 b1Q Qd4 d6 f7+ Kd7 f8N+ Kc7 Qe5 b2 Na4 Bg4+ Nf3 Nc6 b8N Nb4 Nh7 Qc8 Qg3 Nf6 Qf4 Re8 g8R Re6 Rg1 h1N Nc5 Ng3+ Ke1 e2 Bg2 Nf1 Kf2 Nc6 Qh2 Na7 Bh6 c1B Nc6 Qd3 Re8 b1N Nfd4 Qc4 Na5 Kb8 Qe5 Qa6 Bf3 Qc4 Rh1 e1B+ Kg1 e3 Bf8 e2 Ng5 Bh4 Nge4 e1B Qg3 Bc3 Kf2 Bhg5 Bd1 Bh4 Ba4 Bhg5 Re7 Bc3b2 Be8 Bgd2 Bf7 Bdb4 Nab3 Ba5 Qc3 Bc7 Na5 Ne3 Kg3 Nc2 Na4 Nd2 Nac5 Nb4 Kh4 Nf1 Re8 Bh6 Re1 Bg7 Ra1 Bh8 Rd1 Bc1 Re1 Nh2 Reg1 Nf1 Nd2 Re4 Re7 Rf4 Re1 Re4 Re2 Re8 Re5 Re6 Nde4
q1k2n2/2q4Q/n1pnq3/RB1PNBNR/1b3Bb1/3n1p2/rRKbqPB1/8 b - - 0 1 legal: proof: c4 b5 e4 a5 d4 g5 h4 gxh4 d5 Ra6 b4 axb4 c5 Rd6 c6 dxc6 e5 c5 exd6 c4 Kd2 Kd7 g4 h5 a4 f5 g5 e5 a5 c3+ Kc2 c6 a6 f4 a7 e4 a8B e3 g6 e2 g7 e1B Bd3 f3 Ne2 h3 Bg6 h4 Bd2 b3+ Kd3 c2 Nf4 c1N+ Kc3 b2 Qb3 b4+ Kc2 h2 Bf7 h3 Qc3 b3+ Kd1 Nd3 Qb4 Na6 Rg1 h1Q Rg5 h2 Ng6 Ne7 g8B Qc7 Ra5 Qf1 Qh4 h1Q Bf4 Qhh3 Nc3 b1N Rh5 b2 Bh7 Nd2 Kc2 Ne4 Bb7 Bd2 Be6+ Kd8 d7 Qe2 Bg4 Nd6 Ne4 Rg8 Ne5 Rh8 Ng5 Ng6 Kb1 Be7 Kc2 Nf8 Be6 Qf5 Bg6 Qf7 Bh3 Qe6 Bg2 Rh7 Kb3 Rh8 Bf5 b1Q+ Ka4 Qa1+ Kb3 Ne4 Kc2 Beb4 Qh2 Nd6 Qh3 Qd4 Qh4 Qa7 Qh3 Qa8 Qh2 Nac5 Ba6 Rg8 Bb5 Na6 Rh8 Rg7 Qh5 Rh7 Qf7 Rh1 Rh5 Ra1 Qh7 Bb7 Ra2 Bc8 Rb2 Ra2 Qh6 Ke7 d8R Bd7 Rb8 Bc8 Rb7 Kd8 Ra7 Bd7 Qh7 Kc8 Rh1 Be8 Rh4 Bh5 Rh1 Bg4 Rh5 Nac5 Ra4 Na6 Ra5
2Q3NB/R2nKR2/r1r3r1/qRpRnB1N/1qP5/1NP5/n1pq2k1/2n1bq2 b - - 0 1 illegal: No proof kernel
4n1R1/1q1Rbrpq/1q4r1/1B2B1Pn/n1K5/R1p2R2/B1Pr1Nnk/q1N2Q2 b - - 1 2 legal: proof: g4 d5 e4 dxe4 b4 f5 h3 a5 Ke2 axb4 Ke1 fxg4 Ne2 g3 Ng1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Ke2 Kd7 d4 Ke6 a4 c5 f4 b5 a5 h5 a6 b3 a7 b4 Rh3 e3 Kd3 b2 Qe2 c4+ Ke4 h4 Ra3 g2 Ra4 b3 Rf3 h3 Na3 b1Q Bd2 b2 Ba5 h2 Nb5 h1Q Nh3 g1R Qg2 e2 Bb6 e1Q+ Re3 Na6 Bc7 Nf6+ Kf3+ Kd5 f5 e5 Re2 e4+ Ke3 Nh5 f6 Be7 f7 Rf8 Be5 Nc7 Nf2 Ne8 Ra3 Qb6 Nc3+ Ke6 Qh3 Rd8 a8B Qa1 Na2 b1N Nc1 Qeb4 Bc6 Nc3 Bb5 Na4 Rd2 c3 Bfc4+ Rd5 Ke2 e3 Kd3 e2 Qf1 Qbb1 Bb3 e1N+ Kc4 Ng2 Ba2 Qbb2 Rd3 Qh2 Rf3 Qb7 Ba6 Q2b6 Bb5 Rd7 Bb8 Rd6 d5+ Ke5 g5 Rh1 Ba7 Rg6 d6 Qh3 d7 Rh2 d8R Qf5 Rfd3 Kf4 R3d7 Kg3 Rc8 Rf6 Rb8 Qh7 Ra8 Rg6 Bb8+ Ngf4 Bc7 Rg2 Be5 Kh2 Ne4 Rd2 Nf2 Rg8 f8R Rh8 Rf6 Rf8 Rf5 Rf7 Rb8 Nef6 Rg8 Ne8 Bf6 Ng2 Rf3 Qh6 Bd4 Qh7 Be5+
nrqNn2k/2q3n1/QRr1B1N1/2b1qR2/1p2rN2/1P5n/Nr1P2Kp/4BB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 f5 dxc4 f6 b4 Rh3 Ba6 Rh2 Bb5 axb5 exf6 Rh3 f5 Rh1 f4 Kf2 a5 g4 f5 e4 Kf7 b3 Kg7 e5 c5 b6 h5 g5 f3 e6 c3 g6 f4 e7 a4 e8B h3 b7 h2 Bg2 c4 Ba3 c2 Qe1 c1Q Nh3 h4 Qe3 c3 Rg1 c2 Bf7 Nd7 b8N Qc8 Qa7 Nb6 Qe7 Nf6 Qe4 Ne8 Re1 h1N+ Kf1 f2 Qd5 Bc5 Na6 Rb8 Be6 Na8 Ng1 h3 Ne2 h2 Qc4 Rh4 Nbc3 Kh8 Bb2 a3 Nc7 a2 Qa6 Rg4 Rb1 a1Q Bh3 Rh4 Kg2 Qa5 Ba1 f1R Na2+ Qb2 Rec1 Qe5 Bd4 Nf2 Ra1 Rh1 Rf1 c1R Be3 Rb1 Bd4 Rb2 g7+ Kh7 g8N Kh8 Ne7 Rh6 Nb5 Qac7 Na7 Rh4 Nac6 Rg1+ Kf3 Rg6 Nd8 Rgh6 Bg2 Nh3 Bf2 Rf6 Be1 Rg6 Bd5 Rc6 Rf2 Rg4 Bf1 Rh4 Kg2 f3+ Kh1 Re4 Be6 Rcb6 Nf4 Rc6 Rg2 f2 Rg5 Qd5 Rf5 Qde5 Bb5 f1N Kg2 Ng3 Bf1 Nh5 Neg6+ Kh7 Rc1 Nhg7 Rc3 Ba7 Rc5 Bb6 Rb5 Bc5 Nf7 Kg8 Rb7 Kh7 Rb6 Kg8 Nd8+ Kh7 Nf8+ Kh8 N8g6+
1R1qRB2/3q4/1Bb2QK1/b1q4n/1N1P4/pNk2BpN/PqrbN1nn/1n6 b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 c5 fxg4 c6 bxc6 Ba6 c5 Bf1 c4 h4 a5 Qf3 g5 Qd3 g3 Qe2 g4 Qd1 Ra6 Ke2 Rg6 Ke1 Rg5 hxg5 Bf5 Bh3 Be6 Bf1 Bc8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 d4 e5+ Ke3 h5 f4 c5 b4 g2 f5 c3 f6 c2 b5 g3 b6 c4 g6 a4 g7 a3 b7 c3 f7 h4 Ne2 Kc4 Bd2 c1Q Rh2 g1N Qe1 h3 Rh1 c2 Bg2 h2 Qf2 Nd7 b8B Qb2 Ba7 c1Q Qf3 Ngf6 g8N Bb7 Qf1 Bb4 f8N Bc6 Bf3 Ba5 Ne7 Nh5 Qh3 Ndf6 Nf4 Ne2 Qd7 Nc3 Re1 h1Q N8e6 Qh3 Qd6 Qg4 Nc5 Qgd7 Nh3 Qcc2 Bc1 Kb4 Nd2 Nb1 Ne6+ Qc5 Nb3 Kc3 Bb6 Rg8 Nef4 Rg5 Ng1 Rf5 Nfh3 Rf4 Be2 Rf2 Bf3 Rc2 Qe6 Nd2 Rb1 Ng4+ Ke2 e3 Qf6 e4 Nd5+ Kc4 Nb4 Kc3 Kd1 Nh2 Re2 Qa1 Rb2 Nb1 Ke1 Ng4 Kf1 Nh2+ Kg2 Nd2 Re1 Nb1+ Ne2+ Kc4 Nd5 Bb4 Nf2 Qe6 Ng1 e2 Nd2+ Kb5 Ba7 Qf7 Kh3 e3 Kh4 Qh7 Kg5 Qhd7 Kg6 Ka5 Rb3 Qb2 Nfh3 Bc3 Rb6 Ka4 Rb7 Ba5 Bb6 Kb5 Nb3 Kc4 Nb4 Kc3 Rd1 e1N Rb8 e2 Bh6 Ng2 Bf8 e1B Rd2 Qa7 Re2 Qad7 Re8 Bd2 Ne2+
B1b2bQ1/5k2/3RnBqp/3P2R1/2q2r1N/N2N2Kb/rbpr1N1P/2rq3B b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 g4 f5 Ba3 Nc6 Bc1 Nd4 Nh3 exf4 Ng1 f3 Na3 f4 Nb1 Nf5 gxf5 Bd6 Bg2 Bc5 Bf1 Bf8 Kf2 b5 e4 g5 a4 c5 d4 b3 f6 g4 e5 h6 a5 b4 a6 b2 a7 g3+ Ke1 b3 e6 g2 Kf2 c3 e7 c4 Nd2 b1B Ra4 b2 Be2 c2 Ra6 c3 Nh3 g1R Nb3 Kf7 e8N Ne7 Nc7 Nd5 Nb5 Nc7 Na3 Ne6 Nc5 Qc7 Nd3 Qc4 Bd2 c1B Rd6 Bc2 Bf1 b1Q Bg2 Bb2 d5 Rg8 Qe2 Rc1 Rg1 Ba4 Qe5 Bad7 Bh1 c2 Be1 Rg2+ Kf1 Re2 Rg5 f2 Kg2 f1R+ Nhf2 f3+ Kg3 Rd2 Qc3 Qe4 Qd4 Qg6 Qc3 Rb8 a8B Rb4 Qe5 Rf4 Qc3 Qa2 Qd4 Qc4 Qe5 Re2 Bc3 Rd2 Bd4 Ra1 Bc3 Rfc1 Bd4 Ke8 f7+ Ke7 Qh8 Ra2 Nh3 f2 Be5 f1Q Nhf2 Bg7 f8N Kf7 Bd4 Qd1 Bf6 Qh7 Ng6 Bf8 Nh4 Qg6 Be5 Ng7 Bc3 Bh3 Bf6 Ne6 Qg8+
B2qbb2/pqq1B3/qRb2pkN/2B1nn2/R3b3/P5N1/NKP5/2Q1rB1n b - - 0 1 legal: proof: e4 c5 h4 g5 g4 b5 b4 cxb4 h5 d5 f3 dxe4 f4 gxf4 g5 Na6 Bh3 Rb8 Bg2 Rb6 Bf1 Rg6 hxg6 Qd4 Qg4 Qd5 Qd1 Qd8 d4 e5 Kd2 h5 d5 h4 g7 b3 Kc3 h3 a3 f3 d6 h2 g6 f6 Bc4 e3 Kb2 b4 Nh3 f2 Qd2 f1B Qe2 e4 Nc3 Bd7 Nd5 Nc5 Ba6 Nh6 g8N Bg2 g7 Kf7 Nf2 Nf5 Qd3 e2 Qc3 e1Q Nde7 e3 Ne4 e2 Qd4 Bc6 d7 Nd3+ Kb1 b2 Nc3 Ne5 Qd1 Qf1 Be3 e1Q Bc5 Qg3 Qc1 Bge4 Na2 Qc4 Bb7 Qa6 Ba8 Rh3 Rd1 h1N Rd4 Rh2 Rc4 Re2 Rd4 Re1 Rc4 Nh6 Nf5 Kg6 Rd4 Qc3 Ng3 Nf5 Nh6 Qcc4 g8B Qf7 Nc3 Qh7 Ka2 b1B+ Kb2 b3 Ra4 Ba2 Bc4 Qhe7 Be2 Qc7 d8B Qe8 Bde7 Qed8 Nd5 Be8 Nb4 B8c6 Kc3 b2 Rb1 Bf7 Bf1 Bfe8 Kb3 Kg7 Na2 Kg6 Ra1 b1Q+ Kc3 Qbb7 Rb1 Ng4 Rb6 Ne5 Kb2
1BRq2b1/3rqp2/1Q1qN3/q4n1P/r2N1nr1/4B1k1/Brp1RP2/B1n3NK b - - 0 1 illegal: Other
k1N2b2/1Nn2bbn/1R6/B2bRr1Q/Pn4pK/4N1Pp/2q2BBn/2N2bb1 b - - 0 1 legal: proof: e4 c5 h4 g5 b4 b5 d4 cxd4 e5 a5 e6 axb4 Bd3 g4 Bg5 fxe6 Bh6 e5 Bf1 e4 Bc1 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Ba6 Bc4 Bb7 Bf1 Bc8 f4 d5 Kf2 Kd7 Kg3 Kc7 c4 Kb7 a4 h5 c5 e5 f5 b3 c6+ Ka8 f6 d3 f7 e3 g6 e4 g7 h4+ Kh2 h3 Kg3 b2 c7 b4 Bd2 e2 Qe1 e3 Bc3 d2 Qc1 d1N Na3 b1N Rh2 e1B+ Kf4 d4 g3 b3 Bb5 d3 Bd2 e2 Qb2 Ba6 c8N Ndc3 Bc1 d2 Na7 d1B Bc4 Nf6 Kg5 Qc8 g8N Nc6 Be3 Nb4 N3b5 Ncd5 Nd6 Bf2 Ne7 e1B Ne2 Nc7 Nef5 Nd2 Qe5 b2 Nc1 b1B Bf1 Ba2 Rb1 Bf3 Bg2 Bf1 Nb7 Bg1 Bf2 Bfd5 Ne3 Nh7+ Kh4 Bg7 Qh5 Rf8 Rb3 Qf5 Nc8 Qg6 Nd1 Qc2 Re3 Bac4 Re5 Bb3 Bb6 Bef2 Ba5 Bc5 Ne3 Ba2 Be4 Bac4 Rf2 Bb3 Rf6 Bbc4 Rb6 Bd6 Qh6 Ba2 Bg2 Nf3+ Kh5 Nh2 Kh4 Rd8 Qg6 Bdf8 Qh5 Rd6 Re7 Rf6 Re5 Be7 f8B Rf5+ Rf6 Bc5 Rb6 Bf7 Be7 Bad5 Bf6 Bcf8 Be7 Rf4 Bc5 Rf2 Nd1 Rf4 Bf2 Rf5 Ne3
N2B1rbq/3R1q2/1nR2nB1/1K1Q2B1/pb2p2P/1r1R2RP/r4pq1/n3k1N1 b - - 0 1 illegal: No proof kernel
5brn/RBn4b/4q3/K3RNpq/5p1p/PQ2R2N/1k2rBPb/1q2nNR1 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 h4 axb4 h5 Qd6 h6 Qxh6 Nh3 Qh5 Ng1 Qh2 e4 Kd7 d4 Kd6 Kd2 b5 a3 g5 Be2 c5 Nc3 f5 Ra2 h5 Bf1 f3 Ra1 b3 Qe1 b4 Nge2 b2 Ng3 b1N+ Kd3 f2 Kc4 b3 Kb5 b2 Nce2 c4 Be3 c3 Nf4 c2 Qd1 c1B Nh3 Nd2 Qb3 b1Q Rg1 Na6 Ka5 Nc7+ Ba6 f1Q Bf2 Qe2 Nf1 Nh6 Ra2 Rb8 Bb7 Rg8 Rb2 Nf7 e5+ Ke7 e6 Kf6 d6 Nh8 d7 Nf3 d8N Bf4 d5 Ke5 e7 Ne1 e8R+ Be6 Bg3 Kd4 d6 h4 d7 Qh5 Ra2 Bc4 Ra1 Bd3 Re3 Qh1 Nf7 Re8 Bf2 Bh2 Nd6 f4 d8R Bh7 Ra2 Qe4 Rae2 Qe6 Ra8 Re7 Qb5 Re8 Re5+ Kc3 R2e3+ Kc2 Qc4+ Kb2 Qa4 Rd8 Nf5 Rd2 Qd1 Re2 Qb3+ Kc1 Ra7 Nc2 Nd2+ Re1 Qc4 Kb2 Rf1 Re2 Qa4 Nb4 Rc1 Nd3 Qc4 Qd1 Qd5 Qc2 Rg1 Qb1 Nf1 Ne1 Qb3+
4Q1qb/n3r1NB/2qn3N/BR2kp1R/1K2p3/1b6/r1BP1pPb/2r1BR1q b - - 0 1 illegal: No proof kernel
1R2kB2/1Rnrb1nN/3rnqb1/p2B1p2/q2PB3/4BP2/3pb1N1/4RqQK b - - 0 1 illegal: No possible last move, all moves rejected
5R2/NBq3Nq/2bpPB1r/1nB4R/p4b2/1RRp1Q2/1P2n3/k2nrrbK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Ke6 e4 a5 c4 g5 h4 f5 h5 g3 b6 f3+ Kh3 f2 Kg2 g4 h6 d6 h7 f4 b7 a4 e5 d3 c5 Kd5 c6 Kc4 c7 Nc6 b8B Bh6 Rh4 f3+ Kh1 g2+ Kh2 Bd7 c8R Nf6 Bf4 Qc7 Qe2 Kb3 Na3 Ne4 Rf8 Nc3 Nh3 g1N Ng5 g3+ Kh1 Nd1 Nb5 Na7 Ne6 Bc6 Bg2 f1R Rc1 Ka2 Rh5 f2 Rc3 Ka1 Ng7 Bg5 Bd2 Bf4 Qf3 Re1 e6 f1Q Be3 Ne2+ Bg1 Qf2 Rb3 Qe3 Rc5 Qe4 Rcc3 Rg8 h8R Rf1 Rh3 Qh7 Rh6 Rh8 Rh5 Re1 Nd4 Nb5 Ba7 Rc8 Bc5 Rf1 Ndf5 Re1 Ne7 Rd8 Nc8 Rd7 Na7 Rf7 Bf1 Rf6 Bgd4 Rh6 Ra8 Rf8 Be5 Bc1 Bf6 g2+ Kh2 g1B+ Kh1 Bd2 Bg2 Rf7 Rf8 Bf4 Be5 Rf5 Bf6 Bc1 Qe3 Rff1 Be4 Bd2 Qf3 Bf4 Bd5 Bd7 Ba8 Bc6 Bb7
4q3/4Q2R/K1p5/p1qkPP1r/R2B2R1/1np1nb1N/1nrNB3/N1bR1r1b b - - 0 1 illegal: No proof kernel
R4R2/7k/1p1rbN2/RprB1rq1/2b1p1Bb/2P1Bq2/P3Bn2/Q1Nn1K1n b - - 0 1 legal: proof: e4 c5 b4 f5 h4 fxe4 d4 cxd4 b5 g5 b6 axb6 hxg5 b5 f4 Kf7 g4 Kg7 f5 e5 g6 h5 g5 d5 c3 d3 Be3 b6 Bc1 d2+ Ke2 e3 Qa4 d1R Qe4 d4 Qg4 d3+ Kf3 d2 Ke2 e4 Qg3 h4 Na3 h3 Rb1 h2 Qe1 Na6 Nc4 Nc7 Rb3 Be6 Nd6 Nf6 Ra3 Ng4 Ra5 Rh5 f6+ Kg8 g7 Be7 f7+ Kh7 f8R Rc8 Ne8 Nd5 Bh3 Rc5 Kf1 Nf2 Ne2 Bf6 Rg1 h1N Bg4 Qe7 Rg3 Qf7 Rf3 Be7 Rf5 Bd8 Re5 Qf3 Ref5 Be7 R5f7 Bf6 Rfa7 Be7 Ra8 Bd8 Nf4 Be7 Nd3 e2+ Kg1 Ne3 g8B+ Kg6 Qf1 e1Q Nf6 Kg7 g6 Rhf5 Bf7 Kh6 g7 Bc4 Nd7 Bh4 Bd5 Qee2 Qe1 Kh7 Qf1 Qf4 Qe1 Qef3 g8B+ Kg6 Bgf7+ Kh7 Bfh5 Qe5 Ba3 Qf6 Nc1 Qg5 Qf1 Re1 Bb2 d1B Ba3 Bdb3 Nf6+ Kh6 Bb4 Ned1 Ba3 Re3 Qe1 Rd3 Kf1 Rc8 Bd6 Rc5 Bf4 Kg7 Be3 Kh6 Bc6 Be6 Bb7 Rd6 Bd5 Bc4+ Qe2 Bb3 Qb2 Kg7 Qa1 Bc4+ Ke1 Qh3 Be2 Qf3 Bg4 Kg6 Kf1 Kg7 Nd7 Kh7 Nf6+
1B2NK2/bnBq1RP1/p1pn3k/1n1bq3/8/R1qPN1QB/r3B1pr/3bR3 b - - 0 1 illegal: No proof kernel
Bqk4b/R3NBpN/1b2pr1r/2NBq2P/1np1B3/r1n5/1Qb3Pn/4R2K b - - 0 1 illegal: Other
k4r2/2bpP1R1/4bpK1/QR1rBN2/b4BPB/rq1pn3/1n2B3/nR1N2q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 Kd3 h5 Ke4 f3 Kf5 f2 g4 f6 c4 a4 b4 h3 e4 a3 c5 h4 c6 a2 c7 d3 b6 h2 e5 h3 e6 Ra3 b7 Bd6 b5 Nh6+ Kg6 Nc6 b8B Na5 b6 Ba6 c8R Bc4 b7 Rf8 Nc3 Nf5 Qb3 Bc7 Qa4 Ne3 Rb1 a1N Be2 f1R Nd5 Rf5 Ne7 Rd5 Rb6 Bb3 Bb2 Nac4 Be5 Nb2 Nf5 Bd1 Qa5 Ba4 Nd4 Ke7 Rb5 Ke8 Bg3 Ke7 Bf2 Kd6 Nf5+ Kc6 Bh4 Qe7 Re8 Qb4 Re7 Qb3 Rg7 Rh8 Nf3 Rf8 Rb1 h1B e7 h2 Ng5 Bg2 Nh3 h1Q Nf2 Qg1 Nd1 Be4 Ba7 Bh1 b8B Bf3 Bb6 Kb7 Qb4 Ka8 Bd4 Rd6 Qe1 Bd5 Be5 Be6 Bf4 Rd5 Qd2 Bd8 Bbe5 Bc7 Qa5+
2Q5/1qp1N3/2bRBn2/2N1K1kn/1bN5/p1Pb1RR1/2P2qpr/q1r1Nr1B b - - 0 1 illegal: No proof kernel
K2n1r2/1p1n2R1/1N1B1r2/1P2r3/1BQ1Rqn1/N1bb2P1/ppN1Nq2/Bk4b1 b - - 0 1 illegal: No possible last move
q2QRqkn/1p3N2/2N2Bb1/p1b2PN1/N1KP1n2/br2r1n1/1p6/2BRqB2 b - - 0 1 illegal: No proof kernel
1r3NR1/1p4P1/4bq1B/K4R1n/4rrn1/P4B2/B1N1ppNB/Qqkb1nb1 b - - 0 1 illegal: No proof kernel
3bKbnR/p2Rn3/qRB5/kr1PP3/4p1rr/1p4BN/2bqN3/n1BQ3B b - - 0 1 illegal: No proof kernel
2q2b2/pb1r4/q3pn2/P6R/bPNR1R1N/nQ4r1/Nq1nBBp1/3NK2k b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 c4 b5 d3 bxc4 Qa4 cxd3 Qb3 Bb7 Qd1 Bc8 h4 Kf7 a4 Kf6 b4 Ke5 f4+ Ke4 f6 g5 f5 c5 h5 d5 f7 d4 a5 e6 f6 c4 h6 g3 h7 d2+ Ke2 g2 Kf2 g4 Qc2+ d3 Bb2 d1Q Ne2 g1N Nd4 g3+ Kg2 c3 Nf3 Nd7 Be2 Bb7 Nh4 Nb6 Qb3 c2 Bd4 c1Q Bf2 d2 Nf5 Qdc8 Ne3 Nf3 Rh5 Nc4 Nc3+ Kf4 Na2 Na3 Rb1 Qb2 Ra1 Qdc2 Kf1 Q2c6 Nd1 Qa6 Rc1 Rb8 Rcc5 Ra8 Rhd5 Kg4 Rd4+ Kh3 Rf5 Kh2 Rff4 Bg7 f8N Kh1 f7 Nf6 Nd7 Rg8 h8N Bf8 Ng6 Rb8 Nh4 Rg6 Ne3 d1B Nb6 Nd2+ Ke1 g2 Nbc4 Rg3 Rf5 Bc2 Rh5 Ra8 Nd1 Rb8 Qe3 Ba4 Qd3 Bd5 Qb3 Rb7 Rh7 Rd7 Rh5 Bc5 f8R Bb7 Rg8 Bd6 Rgg4 Bf8 Rgf4
2k1B1q1/p1Bp4/1Q1N2N1/qR1rprnP/2PR1B2/1K1B2b1/3bbn2/r1Nn4 b - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 a4 bxa4 g4 hxg4 Bh3 f5 Bf1 fxe4 Kd2 g5 Kc3 e3 h4 g3 b4 g2 f4 a3 c6 a2 b5 g4 c7 e2 b6 e1B+ Qd2 g3 b7 Nc6 b8B Ba6 c8B Nf6 f5 Qa5+ Kb3 Kd8 Qd4 Nh7 f6 Bh6 f7 Bhd2 f8N Ng5 Bb7 Ne5 Na3 Be2 c4 Ng4 Bf3 Kc8 Qb6 Nf2 Rb1 a1R Nb5 Nd1 Bc7 Rh5 Ng6 e5 Bd5 Rb8 Bf7 Rb7 Be8 Bf2 Nh3 g1N Nhf4 g2 Nd3 N1h3 Rh2 g1Q Rg2 Qh2 Rg4 Qg1 Rd4 Bg3 Rb2 Nhf2 Rb1 Rh8 h5 Rf8 Rb2 Rf5 Rb1 Bc3 Bf4 Bd2 Nc1 Qg2 Nc3 Qgd5 Ne4 Qg8 Rb2 Bg4 Bd3 Be2 Kc2 Rb8 Rb5 Rb7 Kb3 Rb8 Qc5 Rb6 Qb4 Rd6 Qc5 Rd5 Qd6 Bg4 Qb6 Be2 Nd6+
1N1Bb3/1B1N1Q1b/2p3r1/BpN1n2K/6PR/b5BR/2p1n1P1/n1qn1krn b - - 0 1 legal: proof: e4 d5 b4 g5 c4 dxc4 b5 f5 h3 fxe4 b6 g4 hxg4 axb6 Ba3 b5 Bc1 b4 Ke2 Kd7 a4 Kd6 d4 Kd5 f4 h5 a5 e5 f5 b5 f6 e3 Kf3 c6 a6 c3 a7 h4 f7 b3 Qd3 b2 Qd1 e4+ Kf4 h3 Be2 h2 Nd2 b1B Ra2 Nh6 Qf1 Ba3 f8B Nf5 Qe1 Nd7 Bc5 Ng3 Bb6 Rg8 Qf2 Rg6 Bd3 e2 Ba5 e1N Ngf3 e3 Bf5 e2 Nb3 Kc4 d5 Ne5 d6 Nc2 d7 e1N Nc5 Na1 Bd2 Qc7 d8B Nec2 Be1 Ne3 Rb2 Qd6 Rb3 Bd7 Qa2 Be8 Bc8 Bd3 Bb7 c2 Bf2 Nd1 Bfe1 Rf6+ Kg5 Ne2 Bg3 Bh7 Kh4 Rg6 Kh5 Qd2 Re3+ Nb3 Rd3 Qc1 Re3 Rb8 a8N Rc8 Nc7 Ra8 N7a6 Ra7 Qb2 Na1 Nb8 Ra8 Rb3 Ra6 Qa2 Ra8 Ne1 Kd4 Ned3 Ke3 Ncd7 Ra7 Rf1 h1N Rc3 Ra8 Qf7 Ra6 Rf6 Kd2 N3c5 Ra8 Bf4+ Ke1 Rh3+ Kf1 Rd6 Ra7 Rdd3 Ra8 Rh4 Ra7 Rdh3 Ra6 Be1 Ra4 Bc3 Rb4 Bcd2 Rb1 Bg3+ Ndf2 Qf3 Kg1 Nba6 Qb2 Nab8 Rd1 Bh6 Qc1 Ba5 Re1 Qf7 Nd1 Bg5 Rf1 B3f4 Kf2 Be7 Rg1 Bed8 Kf1 Bg3+
Kn1N1k2/3p3Q/1b1pP2r/1q4Br/3r3b/bB1BN1nR/2P1RNp1/2bb3N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 d6 cxd6 fxe5 Rh4 Bh3 Rh5 Bf1 Rh8 Kd2 a5 Kc3 f5 Kc4 g5 Kb5 f4 b4 a3 e4 a2 h4 f3 h5 f2 e6 g3 e5 a4 e7 a3 h6 g2 h7 g4 Bg5 g3 Nd2 Bh6 Bd3 f1R Rh3 Bg7 Ne2 g1B Nc4 g2 Ne3 Nf6 Ng3 Rf5 Nh1 Ra4 Qc1 Kf7 e8B+ Kf8 Bf7 Ne4 Bb3 Bh6 Qd1 Qf6 Kb6 Bb7 b5 Ng3 e6 Rd4 Ka7 Bf3 b6 Qe5 b7 Qb5 Ka8 Re5 Rb1 a1B Qd2 a2 Re1 Red5 Re2 Bb2 Qc3 a1B Qc4 Rg4 Qe4 Ba3 Qf5+ Bf6 Qe4 Rg8 h8N Rg6 Nf7 Rc5 Qf5 Rd4 Ne5 Bf2 N5g4 Re5 Rd2 Bd1 Re2 Bg1 Qe4 Bd8 Ngf2 Bb6 Bd8 Rh5 Bg5 Rf6 Qh7 Rg6 Bf6 Bg5 Bd8 Bh4 Bf6 Rgh6 Bg5 Na6 b8N Bh2 Nc6 Nb8 Ne4 Bg1 Nd8 Bf2 Nf1 Be3 Nef2 Bec1 Ne3
3K3B/p2Bn2b/1NR4b/Pn2N1Rb/1N1NbqB1/4pP1k/n3rbp1/Q5r1 b - - 0 1 illegal: No possible last move, all moves rejected
4b1N1/pQ1pK1RP/2k2nN1/5r2/P1p3n1/4R1nB/1nq1NBb1/BrN2b1n b - - 0 1 legal: proof: d4 h5 c4 e5 g4 exd4 f4 hxg4 e4 b5 e5 Bd6 e6 Be5 fxe5 bxc4 Kf2 c5 Kg3 g5 b4 f5 a4 d3 h4 c3 b5 f4+ Kf2 c2 e7 f3 Ke3 g3 Ke4 g2 Kd5 g4 Kd6 g3 b6 f2 h5 d2 h6 Qc7+ Kd5 Nc6 h7 Rb8 Ne2 g1N b7 g2 Ra3 Nh3 Bb2 g1N Nbc3 c1N Ba1 Nd3 Qb1 d1B Na2 Nb2 Re3 c4 Bg2 f1B Nac1 Nf2 Bh3 Nf6+ Kc5 Qa5+ Kd6 Rf8 Qe4 Kf7 e8N Qc3 Ng7 Qc2 Ne6 Ke8 N6f4 Kd8 e6 Ne5 Ng6 Neg4 Rh2 Nh1 Rg2 Rf7 Nc3 Ne2 e7+ Ke8 Qc6 Neg3 Qb6 Bf3 N3e2 Rf8 Qb3 Kf7 e8N Be4 Kc7 Ke6 Kd8 Kd5 Ke7 Kc6 Qb4 Bd5 Qb3 Bf7 Rg1 Nfe4 Nf6 Be8 Ng8 Rf5 Qb4 Nef6 Qb3 Ra8 b8B Bb7 Bc7 Rc8 Ba5 Rb8 Be1 Kc7 Qb5 Bbg2 Bf2 Rb6 Qa6 Kc6 Qb7+ Kc5 Ne5 Bc6 Rb3+ Ne3 Ra3 Nd1 Ra2 Nge4 Ra3 Rb1 Nf4 Nb2 Rg5 Neg3 Rg7 Be4 Neg6 Beg2 Be1 Neg4 Re3 Qc3 Bf2 Qc2 Qb3 Kc6 Nfe2 Nd3 Qb8 Nb2 Qb7+
6q1/2B1r2R/bb3b1P/B2nRN1b/N4Np1/1rn1p1P1/1Rr1pn2/KNQ1k3 b - - 0 1 illegal: No possible last move
4k2n/Kb5R/Bn1rpqN1/BN1rp2b/5QRr/B1P3b1/Bnnp3P/7R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 c5 d4 cxd4 e5 f6 Bg5 fxe5 Bd2 Na6 Bc1 Nb8 Ke2 b5 Kd3 d5 f4 b3 a4 b4 h6 b2 h7 b3 f5 Nd7 a5 Bb7 f6 Nb6 a6 Nh6 c3 Nf7 Na3 b1B+ Qc2 b2 Ke2 d3+ Ke3 d4+ Kf2 d2 a7 d3 Ke3 g5 Nh3 e6 Nf4 g4 Nb5 g3 Ra4 g2 Ng6 g1R Rg4 Be7 Qa4 d1N+ Kd2 Bc5 Qf4 Bf2 Be2 Rc8 a8B Rc6 Bf1 Rd6 Be2 Bf3 Bd5 Bg3 Ba2 Bb7 Bf1 Qe7 Be2 Re1 Bf1 Re4 Be2 Rf8 h8R Bc2 Rhh4 Nh8 Rh7 Rf7 Bf1 Qf8 Be2 Rfd7 Bf1 Rd5 Be2 R7d6 f7+ Kd7 Bf1 Qe7 f8B Ke8 Be2 Qf6 Bf1 Nf2 Be7 Bd1 Bd8 Red4 Ke3 b1N Ba3 d2 Be2 Nd3 Bf1 Nd7 Ba5 Nb2 Rg5 Rd3+ Ke4 Bf2 Bc5 Bc6 Nd4 Rh3 Ba6 Bh4 Nb5 Bh5 Rg4 Na3 Bcb4 Nc2 Bc5 Bg3 Ba3 Nd4 Ke3 Rh4 Ke4 Nd1 Kd3 Bb7 Kc4 Nb2+ Kb4 Nc5 Bb6 Nc2+ Ka5 Ba8 Bd8 Bc6 Kb6 Nca4+ Ka7 Bb7 Ba5 Nb6 Qf5 Bc6 Qf3 Bb7 Qf4
1r3N1b/1BR2p1N/R3rBRP/nn3pKB/1k6/Q1pb1bP1/qr5n/2R1b3 b - - 0 1 illegal: No possible last move
1N2Rn1r/P2QRBN1/r2b1n2/1Rk5/bqbr3n/5p2/np2P2p/N2N2BK b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 a4 Kd6 d4 h5 g4 b5 Kg2 f5 a5 c5 g5 h3+ Kh2 c4 a6 b3 g6 c3 g7 c2 Ra4 b2 Rc4 b4 Rc7 h4 Be3 c1N Ra7 f3 Qa4 f4 Re7 f2 Na3 b1B Nc2 b3 Bg2 f1R Na1 Nf6 g8R b2 a7 Bc2 Bf3 Na2 Bh5 Ba6 Bf7 Qb6 Rg5 Nbd7 Rge5 Kc7 d6+ Kb7 d5 Qb4 Re8 Rd8 R5e7 Rd1 Bf2 Rd4 Be3 Kb6 Bf2 Nb8 d7 Kc5 d6 Bc4 Be3 Rc8 d8N Rc6 d7 Ra6 Nc6 Bd1 d8N Nbd7 Nb8 Bdb3 Re4 Bd6 R4e7 Nf8 Qd7 Ba4 Ne6+ Kd5 Ng7+ Kc5 Re4 Be5 Nf3 Bd6 Ne5 f3 Rd1 Bcb5 Kg1 Bc4 Ng4 h2+ Kf2 h1N+ Kg1 h3 R4e7 Rh6 Nf2 Rh8 Rd2 Ng3 Nd1 Nf5 Kh1 h2 Bg1 Nh4 Rd3 Qe1 Rb3 Qd2 Rb7 Qb4 Rb5+
1N2K1nn/P1r2nR1/2r1Bb1k/5Npq/1Bb1RB2/Bp1P1pQ1/3N4/3nr2b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 g5 a4 b5 h4 f5 e4 Kf7 e5 Kg7 d6 c5 d7 f3 Kg3 f2 e6 b3 a5 b4 e7 b2 e8N+ Kh6 a6 c4 h5 b3 a7 c3 Ra2 c2 Qe1 Nc6 Nd6 Nce7 Nf3 Rh7 Ra4 Qe8 d8B Ng6 Bc7 Be7 Bc4 f1B Ne5 Bf6 Nc6 Nh8 Nb8 Bb7 Be6 Bc4 d3 Rf7 Bd2 c1R Bb4 Rc3 Rh3 Bh1 Nd2 b1N Ba3 Re7 Ba5 Rc7 B5b4 Rc2 Qe3 Nc3 Qg1 Kh7 h6 Nd1 Qh2 Kg6 h7 Kg7 Rh4 Qh5 Ra6 Rc1 Rb6 Rc6 Rb7+ Kh6 Rg7 Rc2 N2e4 Re2 Nd2 Re1 Qf2 Nf7 h8B f4+ Kh2 g3+ Kh3 f3 Qh2 g2 Kg3 g1N Re4 Nc3 Qf2 Qg6 Kg4 Nge2 Qg3 Qh5+ Kf5 Nf4 Bc8 Nfd5 Ke6 Nf4+ Kd7 Nd1 Ke8 Ng6 Be6 Nd8 Na6 Rac8 Nb8 R8c7 Re7 Bd4 Be5 Nf7 Bf4 Bf6 Rd7 Nfh8 Rg7 Nf7 Re3 Ngh8 Re2 Bb5 Re4 Bc4 Nf5#
3b4/P4kB1/N1rpnr2/2pp1P1b/QbnrR3/nn1B1N1R/1N2q3/1R2R2K b - - 0 1 illegal: No proof kernel
2n3k1/7p/B1n2r1R/2NRqr1P/1N3qR1/1Npn1n1K/R2Bp1QP/2n2bb1 b - - 0 1 illegal: No possible last move, all moves rejected
7k/1Q2p1qP/1B2p2n/q3Nn1p/rR2B1rP/Bn3NbK/5Bn1/n1bR2N1 b - - 0 1 legal: proof: c4 d5 b4 dxc4 e4 a5 e5 axb4 e6 fxe6 g4 c3 g5 h6 Qc2 b6 Qa4+ Kf7 Qd1 Ke8 Ne2 Ba6 Ng1 Bd3 Nf3 Bg6 Ng1 Bh7 g6 Ra6 gxh7 Ra8 d4 Kf7 a4 g5 h4 Kg7 f4 c5 Kf2 b3 Kg2 b2 f5 c2 a5 g4 a6 c4 d5 b5 d6 g3 d7 c3 a7 b4 Be2 b3 Rh3 h5 Rh1 Nh6 Kh3 g2 Qd2 Nc6 Qd3 Qa5 d8B Rg8 f6+ Kh8 f7 Rg4 Ra2 Bg7 f8B Be5 Bb6 Bg3 Qb5 Nd4 Nd2 b1N Qc4 b2 Qd5 Na3 Bf1 b1Q Ndf3 Qb2 Bd3 Ndf5 Qb7 Qa1 Bb2 c1N Be4 Nc2 Ra4 Nb3 Ba3 Qb2 Bf2 Nca1 Rb4 c2 Bb6 c1B Bf2 Re8 a8N Qg7 Nb6 Ra8 Nc4 Ra6 Nce5 Ra8 Ne2 Ra7 Rd1 g1N+ Kg2 Nh3 Neg1 Ra6 Bb6 Be1+ Kh2 Nf4 Bf2 Ng2 Kh3 Qc7 Bb6 Ra4 Bf2 Qa5 Bb6 Bg3 Bf2 Nf7 Bb6 Qg8 Bh6 Qg7 Bhe3 N7h6 Bf2
B1n2n2/R1nP4/2br1qnB/NRK1N3/2p5/NQ1pRn2/p1RP1b2/3qkr2 b - - 0 1 illegal: No possible last move, all moves rejected
1kr1B1KR/qpp2Pb1/6br/1r2RR2/3Prr1N/B1Nn4/p3R3/q1nQ3B b - - 0 1 illegal: No proof kernel
1nn1rqrk/R2b1nB1/3R1N2/Q1Rb4/2N1Pb1B/2BPnKp1/4p1p1/1B2q3 b - - 0 1 illegal: No proof kernel
rr3R1R/8/3N1qb1/pr1pBbb1/1R1P1Pb1/N4B2/Knp1nR1Q/2Nq2k1 b - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 g5 h4 gxh4 c5 b5 axb5 Nc6 Ke2 Nb4 c6 Nxc6 Ra6 Nb4 Ra1 Nc2 g4 Kf7 f4 Kf6 b4 a5 d4 e5 Kd2 d5 Kc3 c5 Kb2 h5 g5+ Kf5 b6 e3 b5 Ke4 g6 e2 b7 e1R b8N h3 b6 h2 b7 c4 g7 c3+ Kb3 h4 Ra2 h3 Ra4 Ne7 g8R Na3 Rg7 c2 Rg3 Bg4 Rc4 Nf5 Bd2 Bh6 Nf3 Bg5 Rc7 Qf6 Ng1 Nc4 Bb4 Nb2 Nd7 Rhb8 Rf3 Ng3 Na3 Ne2 Rf2 Ke3 Bd6 e4 Rc4 Bf5 Qa1 Rb1 Bg2 Bg4 Be5 Bf5 Nf3 Bg6 Nb6 Bf5 Rg1 h1B Rb4 h2 Ne1 Bg4 Nc8 Bf5 Bf1 Bf3 Nd6 h1B Nd3 B3g4 Nc1 Bg2 Rh1 B2h3 Na2 Bg6 Nc1 B4f5 Ka2 Bhg4 Rg2 Kf3 Rh8 e3 Rgh2 Kg3 Bg2 Kf2 Bf3+ Kg1 Rf2 Ng3 Rhh2 e2 Rh8 e1Q Rf8 Qd1 Rh8 Rc8 b8R Ne2 Rf8 Rc5 Rh8 Rb5 Rbf8 Nd3 Qc3 Rb3 Qc7 Nb2 Qh7 Rbb8 Ra4 R3b6 Rb4 Rb5 Qh2#
q2k1r2/1qbR3b/R2B1p1R/N4P1p/nr5p/br5B/PR2n2K/B2rQN2 b - - 0 1 legal: proof: e4 d5 exd5 a5 b4 axb4 h4 g5 c3 bxc3 Bc4 gxh4 Ba6 Bg4 Bf1 Bc8 f4 c5 Kf2 e5 d4 b5 g4 h5 Kg2 b4 d6 f6 g5 c2 d5 e4 g6 e3 g7 e2 Qd2 e1R Na3 b3 Bd3 c4 Bf1 b2 Rh2 b1Q Nf3 c3 Nc4 Ra4 Na5 Na6 Bb2 Rd1 Qe1+ Ne7 g8R c1R Nd2 c2 Rg6 Rb4 Rh6 Nc5 f5 Be6 Bc3 Qa8 d7+ Kd8 Be5 Qb2 Rb1 Nc6 Bc3 Qb3 Ba1 Na4 Kg1 Qf3 Bh3 Bd6 Nf1 Rf8 Rb3 Rd3 Ra3 Rcd1 Rg2 c1B Rb2 Be7 Kh2 Bg8 Nc4 Bh7 Na5 Nc5 Ra4 Nd4 Ra3 Ne2 Ra4 Kc7 d8R Rdb3 Rd7+ Kc8 d6 Bd8 Nc6 Bc7 Ra6 Na4 Na5 Re4 Rf7 Rf4 d7+ Kd8 Re7 Qfb7 Rg7 Bb6 Re7 Rfb4 Rf7 Kc7 d8B+ Kc8 Be7 Bc7+ Bd6 Kd8 Rc2 Ba3 Rb2 Nd4 Re7 Ne2 Rd7+
q1rRN2n/4B1bR/N1B1p1nn/2P5/1K2k1B1/3q1bnr/p3Pp2/QR2Rr2 b - - 0 1 legal: proof: f4 b5 g4 g5 d4 c5 a4 cxd4 axb5 gxf4 g5 h5 Qd3 Ba6 Qf5 Bc8 Qg4 hxg4 Kd2 a5 c4 d5 h4 Kd7 b4 Kd6 g6 Ke5 b6 f5 c5 f3 h5 a4 b7 a3 b5 f2 g7 a2 b6 d3 Kc3 g3 h6 e6 h7 d4+ Kb3 f4 Bg2 f1N Nd2 f3 Nc4+ Ke4 Bg5 d2 Rh5 d1Q+ Kb4 d3 Rh6 d2 Be7 Nd7 b8R Bb7 Nh3 Ne5 Nf4 Ng6 Nd3 Bc6 Rh3 Nh6 g8B Bg7 b7 Qc2 Rb1 d1R Bf7 Qf8 Bh1 g2 Rd8 g1N b8R Ng3 Be8 Bd5 Bc6 Rf1 Re1 Qd1 Rh5 Nh3 Bg2 Ng5 Bh3 f2 Bg4 Ngf7 Nd6+ Kd4 Ne8 Ke4 Rh4 Ra3 Rb7 Rg8 h8Q Qc2 Ne5 Qd3 Nd7 Rc3 Nb8 Ra3 Qh7 Nh8 Na6 Ke5 Bh3 Qd4+ Kb5 Qf3 Ra8 N6f7 Rh6 Nh5 Nec7 Nf8 Qb1 Nfg6 Rh7 Nh6 Bg4 Qfe4 Qb2 Rh3 Bd7 Ng3 Qa1 Kf4 Ka5 Qdd3 Rbb1 Qg2 Kb4 Be4 Ra7 Rc8 Ne8 Ba8 Rc7 Qb7+ Bb5 Qa7 Ba4 Bf3 Rd7 Qa8 Rd8 Ke4 Bc6+
2bbR1rq/Bn5k/n2p4/q2pRN2/B1PpNrrP/3b1R2/1K5Q/2N1N2r b - - 0 1 illegal: No proof kernel
7K/q4rQ1/1rkpq1N1/RBP1p2N/B2BbBrR/5N2/P5np/n2nn1b1 b - - 0 1 illegal: No possible last move, all moves rejected
b2b1n2/N1B1RQKn/3p2P1/1pR2Brk/1qR5/2rpR1NP/q1b2Bqb/8 b - - 0 1 illegal: No proof kernel
2B5/5R1n/bpqqNb1P/4B2p/4NK2/2Rp2n1/Pkn2RNr/q2rq1QR b - - 0 1 illegal: No proof kernel
N3kQK1/6b1/pbN1P2b/1R1np2B/BR4P1/1N1qr2n/p2nr3/1bN1q1B1 b - - 0 1 illegal: No possible last move
1bB3N1/1b5P/p1qP1q2/1k2BnRQ/2q3R1/p3n2p/r3B2R/1Nn1rnKR b - - 0 1 illegal: No proof kernel
r6r/3kq1np/q1RB3K/2B2P2/nN1b2bR/R1qpP2B/1p1n1qBQ/5N2 b - - 0 1 illegal: No proof kernel
nr2r2R/r6p/q2kNQrP/PB3b2/4bB2/R2bp1R1/KB3nBp/1Nq5 b - - 0 1 illegal: No proof kernel
3b2b1/1k2BB1p/1q1bK1np/QR4rq/1n1NBP2/1R4b1/P1NN1p1N/2r2n2 b - - 0 1 illegal: No proof kernel
B2R2RK/1k4p1/1n3N2/1q4NR/1Pn1pB1n/rB1QP3/1bnqp1B1/r1b1q3 b - - 0 1 illegal: No possible last move, all moves rejected
qr1nB2K/Q2n2p1/N2Nb2N/P1P1R1b1/3qn1pk/4R3/R2p1BRn/1rq5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 b5 c4 e5 h4 b3 a4 d3 f4 b4 h5 d6 c5 d2 h6 b2 a5 b3 h7 Nh6 Nf3 Qc7 Nc3 b1N Rg1 b2 Nd4 Qb6 Ncb5 Nf7 Nc2 Bd7 Nb4 Qa7 Na6 Be7 Rg2 Be6 Ra2 Nd7 Qa4 d1Q Be3 Rad8 Bf2 Rb8 Qb3 Rhe8 h8N Nd8 Nf7 Qa8+ Qd5 Rh8 Qb7 Rh1 Nh6 Qd2 Bc4 Qc3 Bd5 Qc1 Bc6 d5+ Kd3 d4 Ke4 d3 Qa7 d2 Nd6 Na3 Qb7 Nc4 Qa7 Nb7 Bb5 b1N Bc6 Ne3 Ba4 Nf1 Bb5 Nf8 Be8 Nh2 Kd3 e4+ Kd4 e3 Ke4 Bd7 Kd5 e2 Ke4 Qc3 Kd5 Bd8 Ke4 Ke7 f6+ Ke6 f7 Kf6 f5 Kg5 f6 e1Q+ Kd5 Qf1 Ke4 Bf5+ Kd5 Nd7 f8R Qe1 Rf7 Qa1 Re7 Qb2 f7 Nc3+ Kd4 Qeb1 f8R Ne4+ Kd5 Q1c2 Re5 Rb1 Rf7 Qcc1 Rf6 Ng3 Re3 Kh4 Rfe6 Bg5 R6e5 Nd8+ Nb7 Nf6+ Kd6 Be6 Ke7 Qd4 Kf8 Nh5 Nd6 Nf6 Nhf7 Nd7+ Kg8 Kh5 Kh8 Ne4 Rgg3 Kh4 Nh6 Bc4 Ref3 Bb3 Re3 Be6 Rg2+
1R1n1rqB/1B2Qbp1/rpb1r1n1/3R3p/B1P4P/1NR1n1KN/1kB5/1n3q2 b - - 0 1 illegal: No proof kernel
2N4q/3KP1q1/1N2R1r1/bkNPQ1p1/n2R1R1r/1p1n1q2/1r2B1p1/1q1b1NB1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 c5 e4 b5 h4 f5 d4 g5 h5 b3 a5 f3 Kg3 b4 a6 c4 d6 Kc6 h6 f2 d7 b2 h7 b3 d5+ Kb5 e5 Nc6 e6 Nf6 a7 Nb4 Rh4 Nd3 Be3 c3 Qe2 c2 Ra6 c1R Nh3 Rc2 Nf4 Bb4 e7 Ba5 Nd2 b1Q Ne6 Rb2 Nc5 Qa1 Re6 f4+ Kg2 f3+ Kg3 Rg8 h8R Rg6 Rf8 Ba6 Rf7 Qh8 d8N Nd7 Nc6 Nb6 Rf4 Na4 Qe1 Qg7 Be2 f1Q Bg1 Rh8 a8N f2 Nb6 Rhh6 Ne5 Rh5 Ned7 Rhh6 Nc8 Qb1 Bh2 Qh1 Ndb6 f1Q Bg1 Rh7 Rd4 Qff8 Rf4 Qfh8 Nf1 Rhh6 Qc3 Rh7 Qe5 Qf3+ Kh2 g3+ Kh3 Qe3 Kg4 g2 Kf5 Qf3 Rg4 Rh2 Rf6 Rh4 Ke6 Bb7 Rd4 Bc6 Rgf4 Bd7+ Kd6 Bg4 Re6 Bh5 Kd7 Qh3 Nh2 Bf3 Bf1 Bd1 Be2 Qf3 Nf1
n1b1B3/n1N1Pr2/QpNk1R2/4p1qr/3Nb2r/KP4Rr/1N1pB3/4q1Bb b - - 0 1 illegal: No proof kernel
1n2n1R1/4pB1P/1qnN1n1K/2r2p2/pR3B2/bNbP4/2rBR2k/1b1QR1q1 b - - 0 1 illegal: No possible last move
2N2q2/1rRbprp1/4n2n/1QB1pkqR/2N1Pn1P/N2B4/rR3Kbn/7R b - - 0 1 illegal: No possible last move, all moves rejected
4B3/1n1P4/Pb1N1K1R/2Bq3N/1R3p1Q/r1p2qR1/1rBkp3/n1Bb1rbr b - - 0 1 illegal: No possible last move
k2n1N1K/q2pq2n/b6p/5rB1/1pQBP2R/RbN2N2/BPr4r/4q1rB b - - 0 1 legal: proof: f4 g5 d4 e5 d5 exf4 d6 cxd6 Qd2 d5 Qd1 d4 h4 gxh4 a4 b5 a5 Be7 Be3 Bc5 Bc1 Bb6 axb6 Qf6 Kf2 Qe7 Ke1 Qd8 Kd2 f5 Kd3 a5 e4 f3 c4 b4 g4 h3 b7 a4 c5 a3 c6 f2 g5 f4 c7 a2 g6 h2 g7 f3 Qa4 Nf6 g8N Nc6 b8B Ba6+ Qb5 Qe7 c8B Kd8 Ba7 Kc7 Bg2 f1Q+ Ne2 f2 Bg5 Nd8 Nc3 Qe1 Bb7 f1R Bd5 Rf5 Ng1 Rc8 Nf3 h6 Kc4 d3 Kd4 Nh7 Nf6 d2 Bb6+ Kb8 Qc4 d1B Bf7 Nf8 Nh7 Bb3 Be6 Rg8 Bc5 Rf7 Ke5 Ka8 Bd4 Rc7 Rg1 Rf4 Bh1 Rc6 Rg4 Rc8 Rb1 a1Q Rh4 Qa2 Ra1 Rf7 Bge3 Rg1 Bg5 Qa4 Ra3 Rc7 Nf6 Nh7 Kf5 Qa5+ Kg6 Rf8 Bf7 Qb6 Kg7 Qa7 Ng8 Rc5 Kh8 Rc6 Be6 Rf5 Nf6 Rcc5 Nfd5 Rc6 Nf4 Rcc5 Ng6 Rc6 Bg2 h1R Nf8 Rh2 Bh1 Rd6 Bc5 Rdd2 Bd4 Rc2 Qf1 Ba4 Ba2 Bb3 Qc4
2k1R1Rr/1nrp2Pq/1qBp1Q2/4b3/2qNB2B/p4bP1/2rr4/KB1RN2n b - - 0 1 illegal: No possible last move, all moves rejected
R5R1/Q1pq1b1N/nRNB3p/n1qB1R2/3B2b1/kPpPn3/2r2r2/4b1nK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Kd6 g4 Kc5 Kg2 Kb4 e5 a5 g5 f5 d3 f3+ Kh2 f2 e6 f4 g6 h3 b3 f3 g7 a4 b6 a3 b7 h6 e7 a2 e8R Bg4 Qe2 Ne7 g8R Qd7 Qe4 Na6 b8B Nc6 Be2 Na5 Kg3 h2 Nh3 f1N+ Kf2 Ng3 Nc3 Bg7 Bf4 Ka3 Nd5 Bc3 Rhf1 h1B Kg1 Be1 Ne7 c3 Qd4 f2+ Kh2 Bg2 Nc6 Bd5 Qa7 Bf7 Bf3 Ne2 Kh1 Ng1 Ng5 Rh7 Re6 Rg7 Rd1 a1Q Nh7 Rg5 Bg3 Rf5 Bd5 Qc1 Reg6 Qe3 Bd6+ Qc5 Rd2 Rf3 Re2 Rf4 Ree8 Rf5 Qb6 Rf4 Ba7 Rf3 Ref8 Re8 Rf6 Re2 Ra8 Rc2 Rf5 Nh3 Rg1 f1N Qb7 Ne3 Qb8 Qb4 Bd4 Qc5 Qa7 Rff2 Rg3 Ng1 Rgb8 Bd1 Rgg8 Bg4 Rb6
1R3N2/2pqr3/1Pq3k1/nnP4b/pKQ1NrB1/1p2BN1B/b2nN3/3q2qR b - - 0 1 illegal: No proof kernel
3nn3/1p6/r1RPQb1b/r3R3/B4p1P/pNbqqk2/2NrbN1K/RN2B3 b - - 0 1 illegal: No proof kernel
4r1Rn/1pK1P1b1/1r3Rb1/2k2q1B/rpNpN3/1RB1PQ2/3Rb1n1/1q1r1B2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 d5 e5 fxe5 c6 Bd2 cxd5 Bc1 d4 Kf2 Ke7 Kf3 f5 Kf4 d5 c4 h5 g4 h3 a4 h2 g5 d3 c5 h4 c6 d4 g6 d2 a5 h3 e3 Nd7 e6 Kd6 e7 Ngf6 a6 Bg7 c7 Ne5 a7 Re8 Bb2 Kc5 Ra6 Qd7 Rd6 Nf7 Bc3 Nh8 Ke5 f4 Na3 f3 Ne2 f2 Ng3 Nh5+ Rf6 Nf4 Qf3 d1R Nc4 Ng2 Rg1 Qg4 Rh1 Bf5 c8B Bb1 Be6 Bd3 Bf7 Qh5+ Ke6 Qg5 Kd7 Qf5+ Kc7 Bc2 Rg1 h1Q Na3 h2 Nc4 Rad8 a8R Rd6 Ra1 Rb6 Ra3 Ra1 Rb3 Ra4 Bd3 Bb1 Rd1 f1B Rd2 Qg1 Be2 h1R Bd3 Be2 Ne4+ Kb5 Bb2 Qc1 Ba1 Rd1 Bc3 Bf8 g7 Bc2 g8R Qb1 Bh5 Bg7 Ng3 Kc5 Qf4 Bf3 Bf1 Be2 Qf2 Qh7 Qf3 Bg6 Bg4 Qh3 Bh5 Qhf5 Ne4+
2q1n1r1/PR2NK1R/6p1/R6R/qb4B1/N1bPbpkQ/1nbp1n2/B3rB2 b - - 0 1 illegal: No proof kernel
2qr1BR1/Ppq4n/P1b4K/1RbR4/2np1B2/1n3B2/qn2p1QN/3BkNr1 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 gxh4 Bc4 c5 Bf1 cxd4 Kd2 Kf7 a4 Ke6 f4 Kd5 g4 e5 g5 h5 f5 h3 f6 h2 f7 e3+ Kd3 e4+ Ke2 Kc4 a6 d5 c3 d3+ Ke1 d4 a7 h4 a5 e2 Kd2 e1N a6 h3 g6 Bc5 f8B Nd7 g7 Nb6 Be7 Bd7 Bf8 Bc6 Qf3 Qc8 Bg2 Nf6 g8R Nh7 Ra5 Nc2 Rb5 Na1 Qf2 Rb8 Nf3 e3+ Kd1 d2 Ke2 d1N Nbd2+ Kd5 Rg1 h1Q Nf1 Kc4 N3h2 Nb3 Bf3 Nb2 R1g5 Qg2 Rd5 Qg3 Qg2 Qgc7 Bg4 Ra8 Kf3 Kd3 c4 e2 Bf4 Rb8 Kg3 Kc2 Kh4 Kd1 Kh5 Ke1 Kh6 Ra8 Bf5 Rb8 Bc2 Ra8 Ng4 h2 Bd1 h1Q+ Ngh2 Rb8 Qg4 Qe4 Qh3 Qb1 Qg2 Be7 c5 N6c4 Kg7 Qa2 Kh6 Bd7 c6 Bc5 Rg4 Rg8 Rg6 Qca5 c7 Bc6 Rg3 Qd8 c8B Qac7 Bg4 Qdc8 Re3 Rg7 Re8 Rg5 Bf3 Ra8 Qh1 Rg1 Red8 Q8d7 Re8 Rd8 Qg2 Qg4 Be7 Qf5 Rg8 Qfc8 Bf8
rk2r1RK/pn1b3N/1B2NR1B/4q1B1/2nbpn2/2B1PP1p/3r1QNr/3q4 b - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 b5 axb5 f5 e3 g5 Be2 gxh4 Qa4 f4 Kd1 f3 Kc2 fxe2 Kc3 Qd5 Qd1 Qd7 Kc2 Qd8 Kc3 Kd7 Kd4 e1R Ke5 c5 b4 Kc7 g4 h5 d4 h3 d5 h2 f3 c3 d6+ Kb7 g5 c4 d7 e6 g6 h4 b6 h3 g7 c2 b5 c3 Qe2 Qe8 d8B Bd7 Ra6 Be7 Na3 Bg5 Bb2 c1R Qf2 c2 Bc3 Qf8 Ne2 Rcd1 Nd4 c1N Nac2 Nh6 g8N Re2 Ne1 Qg7+ Nf6 Re8 Rg1 h1Q Ng2 Nf5 Bc7 Qe7 Nh7 Nd6 Bd8 Qg7+ Bf6 Kc8 b7+ Kc7 Rb6 Na6 b8B+ Kc8 Bc7 Nc5 Ra6 Ncb7 b6 Rdd2 Bd8 Qh8 Bg7 Bf4+ Kf6 e5 Ne6 e4 Kg6 Bg3 Bh6 Be5 Bdg5 Nc4 Kf7 Bd4 Kg6 Nba5 b7+ Kb8 Kf7 Qe5 Rd6 Re7+ Kg8 Nd3 Rb6 Nf4 Rd6 Rg7+ Kh8 Re7+ Ng7 Nb3 Rf6 Nc5 Ne6 Re8+ Nef8 Kc7 b8B+ Kc8 Bd6 Nb7 Bc5 Kb8 Bb6 Rb2 Nh4 Rbd2 Rg4 Qd1 Ng2 Re1 Rg3 Rh1 Rg4 Re7 Ne6 Rh2 Bh4 Re8+ Rg8 Qd6 B4g5 Qc7 Nc5 Qe5 Ne6
1QKR3n/p1N1b2r/3NBRR1/k1bB4/1p1b3P/1bpPrr1q/7R/2Bq2n1 b - - 0 1 illegal: No proof kernel
r1b1B1q1/p7/1kbq2NK/q1pn3B/N1Pr1R1p/Q1n1NRN1/P4B2/4q1r1 b - - 0 1 legal: proof: h4 b5 f4 e5 h5 exf4 c3 b4 h6 gxh6 Nh3 h5 Ng1 h4 Na3 Bg7 Nb1 bxc3 Kf2 c2 Ke1 Bc3 dxc3 Kf8 Nf3 Ke7 Ng1 Ke8 Kd2 f5 g4 d5 b4 Kd7 e4 Kc6 g5 h5 c4 d4 g6 d3 b5+ Kc5 g7 f3 Ke3 f2 Kf4 h3 e5 h4 e6 h2 e7 c6 Kg5 d2 b6 f4 b7 f3 Ne2 Nf6 e8B Rg8 Kh6 Qa5 Ng3 Nbd7 b8N Nd5 Na6+ Kb6 Nc3 c5 Nb4 N7f6 Be2 f1Q Nd3 f2 B2h5 Qe2 Rf1 h1B Nb2 Qe6 Qf3 d1R Be3 Rd4 Ncd1 c1Q Rb1 Qc2 Rc1 Qcf5 Rc3 Qfe5 Ra3 Q5d6 Rd3 Rf8 g8N Nc3 Ne7 Nfd5+ Ng6 Rf7 Ba4 Rg7 Be8 Rg4 Rd4 Qg8 Rf4 Bg2 Bd4 Rd7 Ne3 Rg7 Rh1 f1Q Rh3 Qc1 Ned1 Qd2 Bf2 Qe1 Qd3 Be4 Ne3 Bh1 Ne4 Rg1 Rhf3 Re7 Ng3 Re4 Qc2 Rd4 Qa4 Bg2 Qa3 Bgh3 Nh1 Bhd7 Ng3 Bc6 Na4+
k4nK1/p3PN2/q1Npbqb1/6bR/2PpR1NN/3r1Q2/Bq1Bq2n/B1r5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 h5 Kd3 h3 Kc4 h2 Kd5 h4 e4 f3 g4 f2 b4 f6 e5 h3 g5 Rh6 e6 Be7 Bc4 f1Q g6 Qe2 g7 f5 b6 f4 b5 f3 b7 f2 b6 f1Q Na3 Bg5 e7 Qf6 Bb2 d6 Nf3 Kd7 Ba2 Rh4 Nc4 Nh6 g8N Ng4 Ne3 Rh5 Re1 h1B Nh6 h2 Nf7 Rh3 Rb1 Bg2 Ba1 h1Q Rb5 Nh2 Ng4 Qhf1 c3 Qb2 Re4 Qfe2 Nh4 Rd3 Ra5 Qdh8 Qh1 Bh3 Rc5 Qff1 Qf3 Qf6 Ra5 Qfd1 Rc5 Qa4 c4 Qa6 Ngh6 Bf5 Ng4 Bg6 Rb5 Nc6 b8B Nd8 b7 Ne6 Bc7 Nf8 Ba5 Rb8 Bd2 Kc7 Ra5 Ra8 b8N Kb7 Nc6 Rb8 Rb5+ Ka8 Ra5 Rbb3 Rc5 Rbc3 Rb5 Nd7 Rc5 Rc1 Rb5 Qg7 Ke6 Qh6 Ra5 Nf8+ Kd5 Bf4 Nfd8 Qg7 Rc5 Nd7 Ke6 Qh8 Rh5 Bg5 Be3 Bf5+ Kf7 Qf6+ Kg8 Nf8 Bf4 Bce6+ Nf7 Bg6 Bd2
1Rb1Nr2/pq1PRqrP/R2n1B2/b2B4/B2p4/k1p2Kn1/2B1n1N1/r2Qr3 b - - 0 1 illegal: No proof kernel
1Nr2N1R/p2pPB1b/1k1bn3/2R2p2/B1Q1n1q1/2nRq1bP/1BKnr1B1/8 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kd2 f5 c4 g5 e4 d3 b4 a3 h3 a2 e6 g3 e5 g2 b5 g4 b6 g3 c5 Be7 b7 Rh4 c6 Nf6 c7 Na6 b8R Bd6 e7 Re4 Nf3 g1Q Nc3 g2 Bb2 Nc5 Rc1 a1N Qc2 Ba6 c8B Ne6 Nd5 Bc4 Ng5 Qdb6 Nb4 Nb3+ Kd1 d2 Na6 Qbf2 Nh7 Re2 Nf8 Qe3 Qc3 Ne4 Kc2 Bd5 Qc4 d1N+ Kb1 Re1 Kc2 Ndc3 Be2 Nbd2 Bd1 Re2 Bb7+ Nd8 Rc8 Bg8 Nb8 Bh7 Rc5 Ne6 Rh2 Kf7 e8B+ Ke7 Bf7 Kd8 Bc6 Kc7 Rh1 Nd8 e6 Kb6 e7 Ne6 Rb1 Qf3 Bb7 Qge3 Rf1 Qff4 Rf3 g1B Rg3 Qg4 Bc6 Qd4 Rd3 Bf2 Rc1 Bfg3 Ba4 Rf2 Bf3 Re2 Bg2 Qg1 Rf1 Qe3 Rf4 Qg7 Rh4 Qg4 Na6 Rc8 Nb8 Bg8 Rh8 Bh7 Re5 N4g5 Red5 Nge4 Rc5
bKR5/1BrknNnr/b2rPq2/6pB/2pr1Bp1/1NP2rB1/5R2/r4N1Q b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 Ke2 a5 Ke1 axb4 f4 hxg4 Kf2 e5 Qf3 e3+ Ke1 e4 Qe2 Bd6 Qd1 Be5 fxe5 Ra4 Bb2 Ra3 Bc1 Ra8 Ke2 f5 h4 b5 d4 c5 a4 b3 a5 c4 a6 b4 c3 b2 a7 b3 d5 Nc6 d6 Nf6 h5 Ba6 h6 Nh5 h7 Qf6 Rh2 Ne7 Rf2 Kd7 Nf3 Rad8 Nbd2 b1B a8B b2 Nb3 g6 Ra3 Ng7 Nfd2 f4 Bb7 Bc2 Bg2 b1R Qh1 Ra1 Nf1 Rc8 Bd5 Rc5 Bf7 Rc7 Ra2 Rd8 h8N g5 Bh5 Bb1 Nf7 Rh8 Ra5 Rh7 Rb5 Bc2 Rb8 Bb1 Rc8 f3+ Ke1 e2 Kd2 Bd3 Ke3 e1R+ Kd4 Rd1 Bf4 e3 Bg3 e2 Bf4 Ke6 d7 e1R d8B Kd7 Bg3 Rd2 Bf4 Red1 Bg3 Rc5 Bb6 Rc7 Ba7 Be2+ Ke4 Rd6 Be3 Re6 Bc1 Bd3+ Kd4 Be4+ Bd2 Bc6 Kc5 Rd6 Bdf4 R1d4 Kb6 Bcb7+ Ka7 Be4+ Kb8 Ba8 Ra2 f2 Bf3 Re1 Bb7 Ra1 Nh2 f1R Rf2 Rfe1 Nf1 Re3 Rg2 Red3 Rf2 Rf3 e6+
1B1N4/1rN2BbP/1Pb1qR1B/pn2b3/2b1R1kn/1b2Q2p/1pR1RKb1/7r b - - 0 1 illegal: No proof kernel
4q2N/pkrP1QnK/1rp3n1/B2B4/2Br2pb/R2N2r1/P2rb1r1/NRB5 b - - 0 1 legal: proof: f4 h5 g4 hxg4 b4 e5 b5 exf4 b6 Rh3 c4 Rh5 c5 Rh8 c6 dxc6 bxc7 Qg5 Ba3 Qe7 Bc1 Qd8 Kf2 Kd7 h4 b5 d4 f5 e4 g5 d5 f3 Ke3 f2 h5 f4+ Kd4 f3 Ke5 g3 Kf5 g4 Kg6 b4 e5 g2 h6 b3 h7 b2 d6 Na6 Bg5 Be7 Bc1 Bh4 Rh3 Nc5 Na3 b1R Nc2 Ne6 Bc4 f1R Qd5 f2 Ra3 Ng7 Nh3 g1R Nf4 Rg2 Nd3 Qe8+ Qf7+ Ne7+ Kh6 Rb5 Rb1 Rb6 Na1 Ba6 c8N Rfg1 e6+ Kd8 d7 Kc7 Bd5 f1R Nd6 Ng6 e7 Rd1 Bc4 Rf8 h8B Rdd2 Kh7 Rc8 Bd5 Kb8 Bc4 Rc7 Bd5 Nh5 Bc3 Ng7 Bb4 Rg3 Ba5 R1g2 Bc4 Qd8 e8B Ka8 Qe7 Rf4 Bef7 Rd4 Bfd5 Qe8 Nf7 Kb7 Nh8 Bb5 Qf7 Ba6 Bb3 Bb5 Nb4 Bd3 Bbc4 Be2 Nd3
1bq1B3/2R4n/3nRrB1/Pr3n1p/bPrp1Q1p/2Nn1r1N/2BN3k/1K2B3 b - - 0 1 illegal: No proof kernel
2b1N1r1/3nQ1r1/1R2B1pR/3K1b2/P1BB3p/nR2b1B1/4Pbkp/rr1q3N b - - 0 1 illegal: No proof kernel
2q3r1/r1QN1r1p/bN1BN1Rn/3P1b1B/4n2K/N1nR2p1/rp1k2P1/3Bn3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 e5 c5 exf4 c6 g4 Kf2 Be7 Ke1 Bg5 hxg5 dxc6 Na3 c5 Nb1 c4 Kf2 Kd7 e4 Kd6 d4 c5 a4 f5 g6 b5 g7 f3 Kg3 c3 e5+ Kd5 a5 Ke4 e6 b3 e7 f4+ Kh4 b2 d5 c4 a6 g3 a7 c2 Nh3 b4 Rg1 c3 Rh1 f2 Ra3 b3 Ra2 f3 Bc4 f1B Ra5 f2 Be3 c1N Ra1 c2 Bb5 Nd3 Ra2 c1R Ba4 Na6 Qc2 Nc5 Bf4 Nh6 g8N Bf5 Na3 b1N Bd6 Ke3 Nf4 b2 Nf6 Qc8 e8B Ne1 Bh5 Ne4 Qc7 Kd2 Ne6 Nbc3 Bad1 Ra1 Nd7 Ba6 Rh2 f1R Rh3 Rb8 a8N Rb7 Nab6 Rg8 Rh2 Ra7 Rh1 Rf3 Rf1 Re3 Rf3 Re2 Re3 Rf2 Rf3 Bg4 Rf6 Bf5 Rg6 Rf1 Nc2 Rf2 Ra3 Ra2 Rb3 Bg4 Na3 Rf7 Na8 Bf5 Nab6 Ne2 Rf3 N2c3 Rd3+
2r4b/nBb1P1NR/5pK1/npnbR3/Q1RN1BB1/2p4b/1n2qRP1/3rk3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 d4 c5 g6 h5 a3 f6 g7 f3 e3 f2 d5 h4 d6 h3 d7 b3 Kf5 b2 e4 h2 a4+ Kb4 e5 b5 a5 c3 a6 c4 e6 c2 a7 Ne7+ Ke4 Nec6 Kf5 Qe7 g8B Na6 d8R Nc5 Rd6 Bg7 Bf4 c1B Be2 f1N Nf3 Nd2 Ng1 Ndb3 Bf7 Nba5 Rd2 Rd8 Bg4 Bh8 Nc3 b1B+ Ne4 Ba2 Nd6 Kc3 Nf3 Bd7 Re2 Rac8 a8R Na7 Ne8 Bb3 Rhe1 h1N Ng7 Nf2 Ra4 Nfd3 Kg6 Nb2 Rf2 Bd2 Rh1 Kd3 Rh7 c3 Rb8 Bd5 Rc4 Qe8 Qa4 Be1 Re2 Bg3 Nd4 Qe7 Ra8 Bh2 Re3+ Kd2 Rf3+ Ke1 Rf2 Qd6 e7 Qe5 Rh5 Qe3 Re5 Qe2 Be8 B7e6 Bc6 Rd7 Bb7 Bg3 Bf3 Bh3 Bg4 Be6 Nb3 Rd1 Nd4 Bd5 Rb8 Rc6 Rf8 Rc8 Rf7 Be6 Re4 Nab3 Nh5 Ra1 Bd6 Na5 Rh7 Bd5 Ng7 Rd1 Bc7 Bh4 Bh2 Bg3 Re6 Bd6 Bf4 Bc7 Re5
1Rn2nr1/1P2bNRn/1Rkqp3/5R2/Kbp3Np/1B1n1rP1/8/bNB1Qb2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 b4 Kd7 f4 h5 d4 c5 Kd2 a5 Kc3 a4 f5 e3 f6 e2 g3 e1B+ Nd2 a3 d5 e6 b6 a2 b7 h3 b5 h4 f7 h2 d6 Ra3+ Qb3 Nf6 b6 Kc6 d7 Rg8 Nh3 Be7 f8R Nh7 Nf2 Qc7 Rb1 Qd6 Rf7 a1B+ Kc2 c3 Qb4 Rb3 Rg7 Ra3 Rg1 h1N Ng4 Nf2 Bc4 Ne4 Rf1 Rb3 Rb2 Ra3 Rf5 Rb3 Kb1 c2+ Ka2 Rf3 Nb1 Bc3 Kb3 Be1+ Be3 c1N+ Ka4 Nd3 Bc1 Bd2 Qa5 Bc3 Rb5 Bb4 Bb3 c4 d8R Nd7 b8N+ Kb7 Re8 Ndf8 Nd7 Kc6 Rd8 Bb7 Rb8 Ba3 Qe1 Bb4 Ne3 Qf4 Ng4 Nd6 Qe5 Nc8 Qe1 Qd4 Nde5+ Kd6 Nf7+ Kc6 Rh5 Qd6 Rbf5 Kd7 Rhg5 Be4 b7 Kc6 Rb5 Bf5 Nh2 Bg4 Rgf5 Bh3 Ng4 Bf1 Rb6+
qNrb4/p7/nR1pkr2/N2N1rQb/1rbp3P/2RP3R/1Rb1nBK1/5B2 b - - 0 1 legal: proof: g4 c5 f4 h5 a4 hxg4 c3 b5 axb5 e5 Qa4 exf4 Qd4 cxd4 Kf2 Ke7 h4 f5 b4 g5 e4 g3+ Kf3 g2 c4 g4+ Kf2 f3 c5 f4 e5 d6 e6 Rh5 c6 Nf6 c7 Rf5 b6 Nd5 b5 Nc3 b7 Na6 b8R Ne2 Nh3 g1R b6 g3+ Ke1 g2 Kf2 Kf6 b7 Be7 Ra2 Bd7 c8R Be8 Rc4 Bh5 Na3 Qg8 Rb2 Bd8 e7 Ke6 Rh2 Rh1 Rb6 g1R Rc3 Rg6 Nc4 Rgf6 Na5 Rg1 Rh1 Rgg5 Rh2 Rb5 Rh1 Rb4 Rh2 Rgf5 e8Q+ Kd5 Qg6 Ke6 Qg5 Qh8 Rbc8 Qe8 R8c4 Rc8 b8N Qc6 Rc5 Qa8 Ra3 Ng3 Kg1 Ne2+ Kh1 f2+ Rcc6 f3 Rcc3 Ke7 Nf4 Kf7 Nd5 Ke6 Bh3 f1B Rab3 f2 Rb2 Ke5 Bg2 Ke6 Rhh3 Nf4 Kh2 Bd3 Bf1 Bc2 Kh1 Ne2 d3 Bf7 Bg2 f1B Be3 Bg8 Bf2 Bf7 Rg3 Bh5 Bh3 Bg2+ Kh2 Bh1 Bf1 Be4 Rh3 Bh1 Ne3 Bc6 Nd5 Bb5 Kh1 Bc4 Kg2
NnK5/2N5/4RQ1n/2R1R1p1/q2NpnPp/rbr1Bq2/B3PnN1/2rk1n2 b - - 0 2 legal: proof: d4 f5 b4 c5 b5 cxd4 b6 axb6 Kd2 b5 Ke1 b4 g3 f4 Ba3 e6 Bb2 Bd6 Bc1 fxg3 Nc3 g2 Nb1 Bg3 hxg3 Ra3 Rh4 Ra5 Rh1 Ra8 Kd2 Kf7 Kd3 Kf6 Ke4 h5 f4 d5+ Kf3 Kf5 a4 b5 c4 g5 a5 d3 a6 b3 c5 h4 a7 b4 c6 b2 c7 e5 Ra5 d2 Na3 b1N Nb5 b3 Rh3 Be6 c8R d4 Rc5 b2 Nc7 d3 Ra6 Bf7 Re6 Qd5+ Ke3 Kg4 f5 Nh6 f6 Rc8 Nf3 g1N Ne1 e4 Ng2 Qf5 Kd4 Qf3 Kd5 Bg8 Qb3 d1Q Kd6 d2 Qc3 Qa4 f7 d1N f8N Nf2 Qf6 Nd2 Rce5 b1R Rh1 Ngh3 Rg1 Nb3 Be3 Nd2 Rh1 Nf4 Ke7 Nc6+ Kd7 Rc1 Rh3 Rcb8 Rh1 Rb3 Rg1 Rc8 a8N Rbc3 Rh1 Rb8 Rh3 Rbb3 Kc8 Nb8 Re8 Rb2 Ne6 Rbb3 Nd4 Ra3 Rh1 Bb3 R8e6 Rb1 Ne1 Rbc1 Bh3+ Kh5 Bf5 Nf1 Bg6+ Kg4 Bf7 Bd5 Ng2 Bb3 Rg1 Kh3 g4 Kg3 Rh1 Nd2 Rd1 Nh1 Nb5 Bc2 Rd6 Nf1 Ba2 Bb3 Bd2 Kf2 Rc5 Rb1 Re6 Ra1 Bc1 Rb1 Rdd5 Ra1 Ne3 Ke1 Nd4 Nf2 Ng2+ Kd1 Be3 Rac1 Rde5
1Q6/q2qrqn1/1qN4K/N1kn3P/4Bpb1/2R1BPpr/1q1pn1N1/N3BR2 b - - 0 1 illegal: No possible last move
2rrr1b1/K1N2B1N/R3r2n/2p5/QP1Rq2k/q1P1b1q1/pNp3N1/3r1RB1 b - - 0 1 illegal: No proof kernel
2K2k2/qr6/2B1N1Bp/5NPq/pB1qn1nN/R3pr1P/N1b1Rn1Q/5q1q b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 gxf6 Bf4 f5 Bc1 f4 e3 d5 Kf2 d3 Kf3 d4 Qd2 Bg7 Qd1 d2 Ke2 d3+ Kf2 Bd4 exd4 Qa5 Qe2 Qb6 Qd1 Qd8 Kf3 f5 g4 a5 b4 e5 c4 a3 h3 a2 d5 h6 c5 a4 b5 Qd6 c6 Bb7 g5 Kf8 b6 Qe7 d6 Na6 d7 Kf7 d8N+ Kg7 Qc2 d1N Ba3 d2 Rh2 Nc5 Nf7 Ne4 c7 Rb8 c8B Kf8 Bg2 Ndf2 Nc3 Ngf6 Bb4 N6g4 Nd6 d1Q+ Qe2 Ba6 b7 Bd3 Be6 Bc2 Bf7 Qc7 Bg6 Qb6 Bh1 Qa7 Bg2 Rh7 Bh1 Re8 b8N Rb7 Na6 Ree7 Nc5 Rf7 Rc1 a1Q Na2 Qdd4 Rb1 Qd1 Rb3 Qad4 Ra3 Rf6 Kg2 Rff7 Nf3 Rf6 Qd2 Qe2 Nh4 f3+ Kg1 f4 Ndf5 Nc3 Bg2 e4 Bh1 e3 Rg2 Ne5 Kh2 Qd1 Qe2 Nce4 Qd2 Nfd3 Re2 f2 Kg2 Ng4 Kf3 Rff7 Qe1 f1Q+ Qf2 Qfe1 Qg2 Ndf2 Qh2 Nd2+ Kg2 f3+ Kg3 Nde4+ Kf4 Ngf6 Ne7 Qg1 Kf5 N6g4+ Ke6 Rf4 Bg2 Qh1 Nef5 Nd3 Ne7 f2 Nef5 f1Q Bf3 Ndf2 Bg2 Nc3 Bc6 Rf3 Qc7 Nd5 Kd7 Nc3+ Kc8 Nce4 Qh2 Qf6 Bf7 Qdd4 Bfe8 Qg6 Bf7 Qh5 Bfe8 Kg8 Bg6 Kf8 Ne6+
QK1k1R1q/3N1pn1/2p4R/1nPnr1r1/1N2BP1b/r5N1/2np1B1R/N4q1n b - - 0 2 illegal: No possible last move, all moves rejected
bq1Nn3/1B1N2b1/2NpQ1r1/2bnR3/1B1b1b1p/1KBP1q1p/3k1P2/3Bn2R b - - 0 1 illegal: No possible last move, all moves rejected
1N1R1bNQ/Bqp1P2q/1p1q3p/3bBn2/qB5k/q1bB2nN/2PR1K2/1r6 b - - 0 1 illegal: No proof kernel
8/1nNnB3/3B1Q2/ppb2p2/1nRn1K2/P3nPRr/3NkBq1/1nBr2Rn b - - 0 2 legal: proof: e4 c5 g4 h5 b4 hxg4 Bd3 cxb4 Bc4 d5 e5 f6 Bd3 Be6 Be4 Bf7 e6 dxe4 exf7+ Kd7 Ke2 Kd6 Ke3 Ke5 h4 b5 c4 g5 a3 a5 h5 f5 c5 b3 c6 b2 f3 g3 c7 g4 c8R g2 d3 g3 h6 Nd7 h7 Nc5 Qe1 Nb7 Ne2 g1N Rc3 g2 Qd2 Nf6 Nd4 Nh3 Rb3 g1N Rb4 Ne2 Rb3 Nd7 Rc3 Nf2 Ne6 Nd4 Re1 Nh1 Nc7 e6 Rc4 Bc5 Qc2 Qg8 f8B Qg2 Qe2 Rd8 Nd2 b1N Ne8 Kd5 Kf4 e3 Qf2 e2 Rg1 e1N Bd6 Nec2 Qh4 Nb4 Qf6 e5+ Ke3 e4 Nc7+ Kc6 Kf4 e3 Ra2 e2 Rb2 Nb3 d4 e1N d5+ Kb6 Ra2 Nec2 Rb2 Nbd4 Ra2 Rhg8 h8B Rg3 Bg7 Rh3 Ra1 Qf1 Rg3 Qg2 Bh6 Re8 Bg5 Re1 Bh4 Rf1 Rg5 Ne3 Bf2 Rg1 Rg3 Rd1 Be5+ Ndc6 d6 Nd4 Qh8 Nf6 d7 Kc6 d8B Nd7 Na8 Kd5 Qf6 Bb6 Bd6 Ba7 Rc7 Bb6 B8e7 Bc5 Nf1 Kc4 Nd2+ Kd3 Rc8 Ba7 Rc4 Ke2 Nc7 Bc5 Be1 Nc3 Bb2 Rc1 Bf2 Rg1 Rc1 Re1 Rc2 Rb1 Rc1 Ra1 Rf1 Rd1 Bc1 Nb1 Rg1
1N1qN3/4n3/2BqNbpB/b3q2p/Q1N3nr/PR1p1n1P/2k3RB/3b1K1b b - - 0 1 legal: proof: d4 b5 g4 c5 f4 cxd4 e4 f5 b4 fxe4 f5 a5 g5 axb4 Nd2 Ra6 Nb1 Rf6 gxf6 Bb7 Ne2 Ba6 Ng1 Bc8 c4 Kf7 a3 e5 h3 d5 c5 e3 c6 d3 c7 d4 Qg4 e4 Qh5+ g6 Bg2 d2+ Ke2 d1B+ Kf1 d3 Qh4 b3 Qg3 e2+ Ke1 b2 Kf2 e1B+ Kf1 b4 Qg5 b3 Qh4 e3 Ba8 e2+ Kg2 Be7 Ra2 Bb7+ Nf3 Nh6 c8N Ng4 Bf4 Nc6 Nbd2 b1Q Bh2 b2 Nc4 Ba5 Nd4 e1Q Ne6 Qe5 Kf1 Qed6 Rg1 Qa1 Rg2 b1N Rab2 h6 Rb3 Qae5 N8b6 Rh7 Nc7 Rh8 Ne8 Nd2+ Kg1 Nf3+ Kf1 Bf8 Nd7 Ne7 Nb8 Bg7 Rg3 Nd4 Rg1 Bh1 Rg2 Nf3 Bd5+ Kf8 f7 Bf6 Bc6 Rh7 Nc7 Kg7 f8N Bg5 Qe1 Kf6 Qb4 Bh4 Ne8+ Kg5 Bg1 Kf4 f6 Bg5 f7 Bf6 Qa4 Rh8 Bb5 Ke4 Bh2 Kd4 Bc6 Rh7 Rb1 Kc3 Ne6 Rh8 Rg3 Rh7 Rb3+ Kc2 f8B h5 Bd7 Rf7 Bh6 Bh8 Bf8 Rf4 Bc6 Bf6 Rg1 Nf2 Bg7 Rh4 Bh6 Ng4 Rg2+
5K2/1p5p/2p1q2k/RPNN1nB1/2Q1RN1r/2P1N1n1/2bnq3/1nbBqb1B b - - 1 2 legal: proof: g4 a5 e4 g5 b4 f5 h4 d5 b5 dxe4 Qe2 Ra6 Qc4 Rc6 Qb4 axb4 Kd1 Rc5 Ke2 fxg4 Ke1 g3 Rh2 g4 Rh1 Rg5 hxg5 Bf5 Bc4 Be6 Bf1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 c6 Ke5 b3 f4 e6 d4 e3 a4 e2 f5+ Kg7 d5 e1Q+ Ne2 g2 g6 g1N d6 b2 d7 g3 a5 g2 a6 Qe7 d8Q Nh6 a7 Na6 a8N Nc5 c3 Nb3 Rh4 Rg8 Re4 Nd2 Na3 b1B Nc7 Bc2 Nd5 Nb1 Nef4 Ne2 Nc4 g1N Nce3 Ng3 Ra5 Qe2 Bg2 Qd7 Qe8 Ba3 Bh1 Qe7 Bd2 Bc1 Qd7 Qf7 Kd6 e5 Qe6 Nf3 f6+ Kh8 Qe7 Bh3 Qe6 Bf1 Qg4 Qe8 f7 Kg7 f8N Qf7 Nd7 Nhf5+ Kc5 Kh6 g7 Re8 g8B Qe6 Bf7 Re7 Bh5 Rg7 Kb6 Re7 Kc7 Rg7 Kd8 Re7 Rea4 e4 Nc5 Rf7 Qg8 Rg7 Rb4 Rg4 Qf7 Rh4 Bg4 Qf6+ Ke8 Qe5+ Kf8 Qe6 Nd1 e3 Re4 Qd3 Qg8 e2 N1e3 e1Q Bh5 Qde2 Bg4 N3d4 Bgf3 Nb3 Qg4 Qh2 Bd1 Qhf2 Qe2 Qh2 Qd3 Qhe2 Qc4 Qg2 Ng4+ Kg5 Ne2+ Kg6 Bg5 N3d2 Nge3 Kh5 Bd8 Kh6 Nef4 Qge2 Bg5+
R3k1b1/b5Kb/p1Bp3Q/2Nq1R2/Pqbn1rp1/RB1P4/2N1B3/1Bn1n2q b - - 1 2 illegal: No possible last move
4B1N1/3n1p1N/1Bqqnq2/2n5/3p1kRn/1r1PbP2/1bNp3R/1b1BBQ1K b - - 0 2 legal: proof: d4 h5 b4 a5 d5 axb4 d6 cxd6 Be3 d5 Bc1 d4 g4 hxg4 Bg5 b5 Bh6 d3 Bc1 Ra3 Kd2 Ra6 Ke3 d2 Kd3 Rd6+ Ke3 Rd3+ exd3 Qa5 Ke2 Qd8 a4 e5 h4 Ke7 c4 Ke6 h5 Kf5 c5 d5 h6 g5 f3 d4 Kf2 b3 Kg2 g3 a5 b4 h7 g4 c6 b2 a6 e4 c7 e3 a7 b3 a8N e2 Qe1 Kf4 Ra4 Ba3 Rh2 Qd6 Ra5 Nd7 Qd1 e1N+ Kh1 Ng2 Ra6 Ngf6 Rc6 Nh4 Qe1 Ne4 Be2 Nec5 Nb6 Bb7 Bd1 Rb8 c8B Ne6 Rc5 Bd5 h8B Rb7 Nc3 b1N Qf1 b2 Bf6 Ba2 Ne4 Nc3 Rg5 b1Q Nc4 Bb2 Ne3 Rb3 Nc2 Na4 Bb7 Nac5 Bc6 Qa1 Rg8 Bb1 Nh3+ Kf5 Be5 Qa8 Nhg5 Qa6 Bf6 Kf4 Nh7 Qc4 Ba4 Qcd5 Bd8 Q5c6 Nef6 g2+ Kg1 Ba1 Ba3 Bb2 Bb6 Ba1 Rh3 Bb2 Kh2 g1B+ Kh1 g3 Rh2 Be3 Rg5 Qe5 Ng8 Qf6 Rg7 Ne4 Be7 N4c5 Rf2 Kf5 Rg4 g2+ Kh2 Ke5 Bd6+ Kf5 Bg3 Qd6 Re2 Qc6 Be1 g1Q+ Kh3 Ke5 Reg2 Qf2 Kh2 Qg3+ Kh1 Kf5 Rf2 Qgd6 Rh2 Qc8 Rh3 Ne5 Rg5+ Kf4 Be8 Ned7 Rh2 Qcc6 Rg4+
n5qr/nBpPNp1q/1B1qpr2/q5B1/kN2R1Q1/1bN2P2/3r4/1RKn1N2 b - - 0 1 legal: proof: c4 g5 d4 d5 b4 dxc4 h4 gxh4 e3 Bg7 d5 Bd4 exd4 a5 Qd2 axb4 Qc2 Qd6 Qd1 Qd8 Kd2 Kd7 g4 h5 a4 b5 g5 b3 g6 b2 g7 b4 a5 c3+ Kc2 b3+ Kd3 h3 d6 Kc6 d5+ Kb5 f3 h4 d7 h2 a6 h3 a7 c2 d6 Nc6 Bg2 Nf6 Kd2 Nd5 g8N Nb6 Nh6 Qg8 d8B Be6 d7 Bc4 Nf5 e6 Na3+ Ka4 Ne7 b1Q Nb5+ Qa2 Ne2 b2 Re1 h1Q Ng3 h2 Bf1 Bb3 Rb1 Rb8 a8N Na7 Re3 Qa3 Bc4 Qd6+ Bd5 Rh6 Qg1 Rf6 Qg2 Qg1 Nf1 h1Q Re1 Qgc5 Qg1 Qhh7 Nc3+ Kb4 Qg6 Qa5 Re4+ Ka3 Qg4 Rc8 Ke3 Rb8 Bd2 c1R Bb7 Rc2 Be1 Rd2 Bf2 Na4 Nb6 Ra8 Nbc8 Nb6 Nc6 Rb8 N8e7 Na8 Re1 b1N Nb4 Rd5 Ke2 Rc8 Bb6 Rd2+ Ke3 Rb8 Ncd5 Nc3 Rb1 Ra2 Kd3 Ka4 Ke3 Nd1+ Kd3 Nb2+ Kd2 Nd1+ Kc1 Rd2 Ng6 Rf4 Bg5 Rf6 Nge7 Qgg7 Re3 Rh8 Re4 Qgg8 Nc3+
5n2/1pP5/n1N2N2/2r1pr1n/1B1p1nK1/Rn2PQRB/1R1bb2k/B1bB3r b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Bg2 Qa5 Bh3 fxg4 Bf1 g3 Nh3 g4 Ng1 Qg5 hxg5 Ra5 Rh3 Ra3 Rh1 Ra8 f4 Kf7 c4 Ke6 a4 Kf5 a5 h5 a6 e5 c5 d5 c6 g2 Kf2 b3 Kg3 h4+ Kh2 d3 g6 b2 a7 g3+ Kh3 d2 c7 d4 g7 Nf6 g8B Na6 Nc3 b1N Bb3 Bh6 Rh2 Rf8 Ba2 Nd7 Qe1 d1R Qf2 Nd2 Nf3 g1B Bb3 g2 Ne1 Rf7 Qe3 Nf8 Qf3 Be3 Bb2 Be6 Ra2 Bc4 Ba1 Bg5 Ba4 Nb3 Nc2 Bd2 Nd5 Rb1 Ra3 g1N+ Kg2 h3+ Kg3 Rd8 Nf6 Rd5 a8R Rc5 Nb4 Bb5 Rg2 h2 Nc6 Nh3 Ra2 Bh6 Rb2 h1N+ Kh4 Ng3 e3 Nh5 Rg3 Be2 Bg2 Rh1 Bf1 Ke6 Kg4 Bc1 Nd5 Rf5 Nf6 Bg5 Ra7 Bh4 Ra8 Na5 Bd1 Nb3 Rg2 Be1 Rg3 Bed2 Bg2 Nb4 Ra3 Na6 Ne4 Rf7 f5+ Kd5 f6 N3f4 Bh3 Rg7+ Kh4 Rg5 f7 Rf5 Nf6+ Kc4 Qf1 Kd3 Nd7 Ke4 Qf2 Bc4 Kg4 Be2+ Qf3+ Kd3 Nf6 Ba5 Rb1 Kd2 Nd5 Ke1 Nf6 Bad2 Rb2 Bf1 Qe4 Kf2 Bg2 Kg1 Qf3 Kh2 Bh3 Rb5 Rc2 Be2 Rb2 Nd7 f8B Ra5 Bd6 Nf8 Bb4 Rb5 Nd7 Rc5 Nf6
1B4R1/2pn3Q/3n2pR/1qP1RnpP/1B1rN2n/n2R2N1/1b6/qn2kbKB b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 a5 Bg2 axb4 Bf1 h6 f4 b5 g5 hxg5 Bb2 e5 Nf3 e3 Bc1 e4 Ng1 Ra6 Be2 Re6 Bf1 Re5 fxe5 Be6 Ke2 Bh3 Ke1 Bc8 c4 Kd7 a4 Kc6 d4 f5 h4 e2 Kf2 e1Q+ Kg2 f4 d5+ Kc5 a5 b3 h5 Kb4 e6 b2 c5 e3 d6 f3+ Kh2 e2 d7 g6 e7 f2 e8R Bg7 a6 Ne7 a7 Ba6 a8R Nf5 Bg2 Nd6 Re5 Qe8 d8B Nd7 Nd2 Kc3 Bf6 b1N Ba3 b4 Qa4 b3 Bb4+ Kc2 Ne4 Kd1 Qa2 b2 Qg8 Qb8 Qh7 Qb5 Rg8 Qc3 Ra4 e1N Ne2 f1N+ Kg1 Na3 Rh3 b1N N2g3 Qa1 Bh1 Ne3 Ba5 Nef5 Bb6 Ng2 Ba7 Ke1 Bb8 Ngh4 Rd4 Qb4 Rdd5 Qb3 Re7 Bf1 Bc3+ Nd2 Rf7 Qb5 Bb4 Bc3 Re5 Ndb1 Rd8 Rg8 Rff8 Rg7 Rh8 Rf7 Rdg8 Rf8 Rh2 Rd8 Rd2 Bb2 Qg7 Bh3 Rh6 Bg2 Qh7 Bf1 Ba7 Ra8 Bb8 Ra4 Ba5 Rc4 Bb4 Rd4 Rd3+
Bb5b/2nbN1B1/N3RP1p/K2Bbb1n/pQ3n2/3n2pR/B3N1rP/k2q4 b - - 0 1 illegal: No proof kernel
5N2/1p1KQ2n/kNp3p1/B1bB4/Rb3B2/1P1nb1NP/r4bbN/nq3R1n b - - 0 1 illegal: No proof kernel
8/r1BpN3/bpN2r1N/1Qb1n1kr/NP3n1B/n3r1pR/4r1P1/K1Br3R b - - 1 2 illegal: No possible last move
3q3B/b2n1BK1/bR2Pp2/nr3P1R/2R3N1/bn5k/1N1pQnpb/3R1B1q b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 a5 Bb2 axb4 Bc1 h5 c4 hxg4 Bh3 b5 Qd3 b3 Qd1 b4 Bg2 Ra5 Bf1 Rb5 cxb5 Qe7 Qd3 Qh4 Qd1 Qd8 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kf4 c5 h4 g5+ Kg3 Kf5 a4 d3 f4 b2 h5 d2 b6 b3 h6 f6 b7 d4 h7 d3 a5 c4 a6 c3 a7 c2 a8B Bc5 Ra4 Nd7 b8R Ba6 Rc4 Ne7 Bd5 Nc6 Na3 b1Q Bf7 b2 Nf3 Na5 Nh2 Ba7 Rb6 Rf8 Qe1 d1N h8R Nf2 Rh5 Re8 e3 Re5 Qe2 Rb5 Bd2 c1B Bb4 d2 Bf8 Nb3 Bg7 Qe4 Bh8 b1N Bh3 Qd5 Rd1 Qh1 Bf1 Bb2 Rd4 Bc1 Nc4 Na3 Nb2 Nc4 Re4 Nca5 Rc4 Rb4 Bd5 Rb5 e4+ Kg6 e5 Kf5 Na4 Ba3 Bf7 Qe4 e6 Qb1 Kg2 g3 Kf3 g2 Ng4 g1B Nb2 Bh2 Ke3 Nbc5 Kd4 Qc1 Kd5 Qb1 Kd6 Qe4 Rh6 Qh1 Rg6 Ncb3+ Rb4 Qb8+ Ke7 Qd6+ Ke8 Qd4 Rc4 Qdd5 Ne5 g4 Rg7 g3 Ng4 g2 Rg8 Ndc5 Kf8 Qd8+ Kg7 Nd7 Kh7 Nd4 Ne3+ Ke4 f5 Kf4 Ng4 Kg3 Rg5 Kh3 Kg7 Ndb3 Rh5+
1n4R1/pN1q1b2/Pr3k1b/B2brQRb/RqNPpK1p/5B2/8/r2R1Br1 b - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 bxc4 h5 Nd7 Rh3 Ne5 Rh1 Ng6 hxg6 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 e5 b4 Ke7 a4 f5 d4 c5 b5 h5 g7 c3 g6 e3+ Kf3 e4+ Kg2 h4 a5 f3+ Kh2 f4 a6 e2 b6 e1Q b7 c4 b8R f2 Bh3 f1B Rb7+ Qd7 Qd2 c2 Bg4 f3 Qg2 c3 Bd2 c1R Nh3 f2 Qf3 c2 Qf5 Rh6 Nf4 Be2 Kh3 Nf6 Ba5 Qb4 g8R Rg1 g7 c1R Rb5 Bb7 Bf3 Re8 Ra4 Bd5 Na3 Ra1 Ne6 Rhg6 Nc5 f1B+ Kh2 Kf7 Nb7 Re5 Nc4 Bd1 Rc5 Bfe2 Kh3 Bb3 Bg2 Bh5 Bf3 Rgb1 Rd1 Rg1 Rh8 Ke7 g8B Bg7 Bf7 Bh6 Rg8 Rb2 Be8 Bdf7 Ne3 Bbd5 Nc4 Qc8 Bb5 Nd7 Nb6 Qe8 Bf1 Nb8 Nc4 Qd8 Rc8 Qd7 Rg5 Qa3 Rcg8 Rb6 Rg2 Qb4 R8g5 Bhg6 Kg4 Bh5+ Kf4 Bg7 Qh7 Kf6 R2g3 Bf8 Rg8 Bg7 Rg5 Bh6 Qf5+
1n4qb/p1N1BRq1/2k5/1p1qRrRr/B4p1Q/KPP1r2q/1NB4B/4rn2 b - - 0 1 legal: proof: f4 c5 h4 g5 a4 gxh4 d4 cxd4 f5 b6 a5 Bb7 a6 e6 axb7 exf5 Ra4 f4 Ra5 Qe7 Ra1 Qd8 Kd2 d5 e4 Kd7 g4 f5 c3 h5 Kc2 b5 Kb3 f3 g5 h3 e5 d3 e6+ Kc6 g6 f2 e7 d2 e8R h2 g7 h4 Ka2 d4 Nh3 d3 Ng1 h3 Qa4 d1R Na3 d2 Ne2 Ne7 g8B Bg7 Bb3 Re1 Qh4 d1Q Nc4 Nd5 Bg5 Rh5 Ka3 Qd4 Be7 Bh8 Nf4 Ne3 Rg1 h1Q Rg5 h2 Ne6 Qg7 Ba4 Qhd5 b3 h1Q Nb2 Qh3 Bd3 f1R Bc2 Rf4 Rf8 Nf1 Rf7 Qdg8 Nc7 Rf3 Rd1 Rfe3 Rd4 Nd7 Re4 Rf8 Bd6 Nb8 Bh2 f4 Ree5 Na6 b8B Rc8 Ne6 Rf8 Bd6 Nb8 Bc5 Nd2 Nc7 Nf1 Rfe7 Rf6 Rf7 Rf5 Be7
1n6/2p3rr/2PRR1n1/nRKN3Q/1r2rBBn/4p3/b1P3p1/kNr1R1bN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 Bd2 f5 Be3 fxe4 Bh6 d6 Bc1 Qd7 Qe2 Qb5 Qd1 Qc5 dxc5 Rh3 Nf3 Rh5 Ng1 Rh8 Kd2 Kd7 Ke3 Kc6 Kd4 g5 f4 b5 a4 e5+ Ke3 d5 h4 d4+ Kf2 Kd5 h5 d3 Ke3 Kc4 f5 g3 a5 g2 a6 b3 c6 b4 a7 g4 f6 g3 h6 b2 h7 b3 f7 Be6 Nd2+ Kc3 Qf3 b1R Rh4 b2 Qf6 Ba2 Qf5 Ne7 Qc8 Ng6 Nb3 d2 Bd3 d1R Nh3 g1N Nf2 g2 Nd2 Nf3 Rh5 Nfh4 Qe8 Be7 f8R Bc5+ Ke2 e3 Nh1 e4 Rf6 Rg8 h8R Rg7 R8h6 Rf1 Rd6 Rff7 Ke1 e2 Ba6 Bg1 Bc8 Rh7 Bg4 Rfg7 Rf5 Nd7 Qf7 Rb8 a8N Rb4 Nb6 Nb8 Re5 Bh2 Kf2 e1R Rb5 Bg1+ Kg3 Re2 Qf5 Re1 Qh5 Re2 Nf1 Re1 Bf4 Rbc1 Nd2 b1N Nd5+ Kb2 Re6 Na3 Nb1 Nc4 Rd6 Bh2+ Kf2 Na5 Re6 Rf1+ Ke2 e3 Kd3 Bg1 Rd6 Nh8 Rhe6 N8g6 Bg5 Rff7 Bh6 Re7 Bf4 Bc4+ Kd4 Ba2+ Kc5 Re8 Rf6 Re4 Rfe6 Bb3 Ra3 Ba2 Rd3 Ka1 Rd1 Rh6 Rf1 Rhh7 Re1
2q1nK2/1q1N4/1B1R1RN1/3Q2pP/2p2BqP/r1p3p1/3b1B1k/1bnrr1NB b - - 0 1 illegal: No proof kernel
2RqRn2/7b/Q2b2B1/1bNP1pNp/1pq2nnk/2N3P1/3r2p1/BK1RNr2 b - - 0 1 illegal: No possible last move, all moves rejected
q1N2qRN/Nr1bN2K/1r1P2Q1/n2pk1BR/3B4/2pp3B/1rPp1nb1/3b4 b - - 0 1 illegal: No proof kernel
b6K/QR3qN1/2np1pp1/BN2P1n1/1qBbb2R/2pr2P1/nr1kN2R/6N1 b - - 0 1 illegal: No proof kernel
n2R1N1K/5Q1p/3r3b/1R2n1Pb/NP2pNpk/2bB3B/1B3p2/2qqn1Br b - - 0 1 illegal: No proof kernel
Q1N1b3/1r1rNp2/1r1b1q2/1RR2B1P/kq2p1BP/p3B1R1/Kp3bn1/4n1R1 b - - 0 1 illegal: No proof kernel
k7/2N1pq2/r2n1Q2/1b1Pn3/P1r1Nb1p/r2ppRBB/qNN4K/n2R2B1 b - - 0 1 illegal: No proof kernel
1nbqq3/rBrrp1Pp/RB1p4/1BN5/p1RQ4/NP1bk3/3bnN1B/7K b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 c3 Kf7 f4 d6 Kf2 Kf6 g4 a5 Kg2 e3 b3 e2 b6 e1R g5+ Kf5 b7 Ke4 c4 d3 g6 d2 f5 Nf6 c5 Qb6 c6 Bh6 g7 Bd7 c7 Nh5 c8B Ng3 f6 Ra7 f7 Rd8 Bb5 Ne2 f8N Qc6 Ne6 h3+ Kh2 Rf1 Bb2 Rf5 Ra2 Rc5 Be5 Rc3 Rc2 a4 Na3 Rc5 Qa1 d1B Qd4+ Kf5 Rc3 Bc2 Bf4 Bd3 Rc2 Na6 b8B Rc3 Bb7 Bc8 Bg3 Qe8 Bc7 Nb8 Ba5 Rc7 Rc6 Bd2 Nc5 Qh8 Bf4 Rdd7 Ra6 Qd8 Bb6 Nc1 Kg3 h2 Kg2 Ne2 Nh3 Kg4 Rc1 h1Q+ Kf2 Qd5 Rc4 Q5g8 Kg2 Qge8 Bh2+ Kf5 Nf2 Kg5 Nfe4+ Kg4 Kh1 Kf3 Qa1 Ke3 Nf2 Qf7 Qc3 Qfe8 Qd4+
Rr6/4pP1k/pRrBq1R1/N1RP1p1n/2Kn4/q3NpQq/1BB5/1b4br b - - 0 1 illegal: No proof kernel
1bb2Qq1/2p2qk1/3pRrq1/p1Bp1n1P/r4NBb/2N1PRN1/N4n2/1K3R2 b - - 0 1 illegal: No proof kernel
1kNnnq2/P2rN1B1/R4bbK/1r1q3N/2R5/Q1pr1pp1/B3p2P/2BN2q1 b - - 0 1 illegal: No possible last move, all moves rejected
n1b2rn1/pNRQ3N/B3qB1P/3NR2B/1K2kqp1/1bp2NP1/6p1/4rb1q b - - 0 1 illegal: No proof kernel
5KR1/pB1p1NBb/b2nkbP1/3p3r/2nPr3/3p4/r1RQq1Bq/R2BN3 b - - 0 1 illegal: No proof kernel
1Nr1n3/p2pP2k/2BB1N1p/1QqB4/r1Bbq1bR/3p4/2rqPRR1/1K2n3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 d5 e5 fxe5 c6 Qd3 cxd5 Qd1 d4 Kd2 f5 b4 Kf7 g4 Kg7 c4 h6 Kc2 f4 e6 f3 b5 a3 c5 h3 g5 f2 b6 a2 c6 h2 c7 Ne7 b7 Rh7 g6 Nbc6 b8R Ne5 Bf4 Nd5 e7 Nd3 Bg2 f1Q Bd6 Bb7 c8B Qb6 Nd2 Nf6 Ne4 Ne8 Nf3 Rh8 Nf6 Qe1 Ne5 Bf3 Nc6 Bg4 Ba6 Qc5+ Bc4 Rg8 Rb6 Rc8 Qb1 Qeb4 Rf1 h1Q Nb8 Ne1+ Kc1 d3 Bc6 Rh8 Rf2 Qe4 Rb5 Qa5 Rb4 Rg8 Qb3 Kh8 Qa4 Bg7 Qb5 Rf8 Rab1 a1R Rg2 Ra3 Ra1 Rc3+ Kb1 Rc2 B4d5 Rf7 Rd4 Qd2 Raa4 Qee3 Rf4 Qe4 Rff2 Rf8 Nh5 Bc3 g7+ Kh7 Rb4 Rf4 g8B+ Kg6 Bc4 Bd4 Bgd5 Kh7 Nf6+ Kh8 Rh2 Qg6 Nh7 Be3 Rhg2 Bh5 Ba2 Bf3 Rb3 Ra4 Nf6 Kg7 Ng4 Kh7 Rb4 Qf5 Rf4 Qe4 Bac4 Bd4 Nf6+ Kh8 Ng8 Kh7 Rh4 Bg4 Nf6+
1BnRn3/3r2NB/2R1N2K/2b2qP1/pPb1r1p1/7Q/ppR1N1rk/1rr2R2 b - - 0 1 illegal: No possible last move
2Rn4/2R5/N1brBprq/4PnBr/2N3k1/pK3Rrp/P2R1N1p/Qb4b1 b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 e4 Kd7 g4 Ke6 d4 a5 Kd2 b5 Kc3 h5 g5 f3 c6 f6 e5 Kf5 d5 h3 c7 b4+ Kb2 b3 d6 f2 d7 h4 g6 a4 g7 a3+ Kc3 h2 Qd4 b2 Qd2 h3 Nf3 Nh6 g8R Bc5 Rg7 Nc6 Qd1 Ra6 Ne1 Qf8 d8N Bd7 Ne6 Nd8 c8R Rd6 Nd2 b1B Nc7 Bc6 Na6 Rg8 Rgc7 Rg6 Be2 f1R Nd3 Bg1 Nf2 Kg5 Kb4 c3 Bg4 c2 Kb3 Nf5 Nc4+ Kh4 Qd4 Qh6 Bg5+ Kg3 Qd1 c1R Qd4 Rce1 Qb2 Re3+ Qc3 Bbe4 Rd1 Bb1 Rd2 Red3 Bf3 Re3 Bd5 Rf3 Be6 Re3 Nd3 Kg4 Qb2 Rg3 Qa1 Ba7 Rg1 Rf2 Rf1 Rfg2 Rf3 Bg1 Bf4 Rg5 Be3 Rh5 Nf2+ Kh4 Na5 Rg6 Nc4 R2g3 Nd1 Kg4 Bf4 Bd5 Bg5 Bc6 Nf2+
1b5K/7N/1p3p2/qrr1QR2/BN4p1/2nPpNPB/krR1n1rN/1nB4b b - - 0 1 illegal: No proof kernel
3bbrB1/7p/6R1/p1K1b1rp/N1pR1n1R/1PPR1Q2/Nr4nN/1q1B1b1k b - - 0 1 legal: proof: e4 b5 a4 e5 axb5 f6 d4 g6 h4 Nc6 h5 gxh5 Bf4 exd4 e5 Nb8 e6 Nc6 Bd6 Nb8 Be5 fxe5 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 g4 Kf4 b3 c5 b6 d5+ Kb5 a5 f3 Kg3 e7 c4 e8B d3 b7 e4 g5 d2 c3 d4 g6 e3 f4 d3 g7 e2 f5 e1B f6 Bd6 f7 Nh6 g8R+ Ng4 f8R Nd7 b8N Nc5 Rf7 Be5 Nh3 Bd7+ Nc6 Ne6 Rg6 Nf4 Nf2 Rg8 Be2 Kg2 Ne4 Bh4 Kc5 Qc8 Rh3 Bd8 Rh4 Rg7 Rf8 Rb8 Bf7 Be8 Bd5 Qf5 Nb4 Ra8 Bg8 Rb8 Qe1 d1B Na2 d2 Rf7 Bc2 Rd7 d1R Nbd2 Bd3 Rd4 Rb1 Nf1 Rb2 Nh2 Ra8 Bd1 Bf1 Qe3 Kh1 Qe2 Ne3 Qf3+ Neg2 Rc1 Rb8 Rc2 Ra8 Rcd2 Rb8 R2d3 Ra8 Rf6 Rg5 Rg6 Rb8 Nf6 Qe4 Nd5 Qf5 Nb6 Ra8 Re3 Qb1 Red3 Ra6 Nd7 Rf6 Nb6 Rf8 Na4
B4N1q/5Nnp/rP2npPB/3rb1N1/Nrb5/Rr3pb1/k1pRBQ2/7K b - - 0 1 illegal: No possible last move
2Rb1K1b/5P1b/5n1p/NBPp1rnp/2N3N1/5nBk/1Qp2nr1/4BNqR b - - 0 1 illegal: No proof kernel
7K/rbbnkp2/1B2B1p1/2Rp1PrN/2PR1B2/Q4rN1/2qp3r/RR2b2n b - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 a5 Kd3 d5 e4 b3 f4 g6 h4 g3 c4 a4 e5 g2 h5 a3 h6 b2 h7 a2 e6 Ra6 b6 Ra4 e7 Be6 b7 Qd7 Nd2 b1R Nh3 g1R Qf3 Ra8 Ne4 Rb6 Be3 Qa4 Ng3 Nd7 b8B Nh6 Bc7 Rb7 Bb6 Raa7 Be2 Rg2 Rhb1 Ng4 Bd1 Rh2 f5 Bg7 Nf4 Be5 Nfh5 Bc7 Bf4 Rg2 Qe3 Rb8 Qc1 Rba8 Qa3 Nf2+ Kd2 d3 Ke3 Nh1 Kd4 Rf8 h8R Qc2 Rh7 Rh8 Rh6 Ne5 Rh7 Bc8 Rh6 Kd7 e8R Bb7 Re6 Kd8 Rc6 Nd7 Rc5 Ke7 Rh7 Qc1 Ba4 Qc2 Ne2 Rg5 Neg3 Ra5 Bb5 R8a7 Ba6 Rb5 Rh6 Rb3 Rh7 Ba8 Bc8 Bb7 Rh6 Ne5 Be6 Nd7 Ng7 d2 Rh4 Rf3 Rg4 Rh3 N7h5 Rh2 Bd6+ Kd8 Re4 Nb8 Ke5 Ke8 Kf6 Nd7+ Kg7 Kd8 Rf1 Ke8 Bf4 Ke7 Rac1 a1B+ Kg8 Bg7 Ra1 Bd4 Rfb1 Bf2 Kh8 Be1 Rd4
3n2K1/3rqpb1/PB1Bn2R/1pN1Q1pp/R4r1b/4bPN1/2N2rk1/2b3BB b - - 0 1 illegal: No possible last move
k3B1BR/1r2p3/Kb1q3P/2rPR1p1/pbr1B3/3n1N1p/b1N2Q2/1bR2nB1 b - - 0 1 illegal: No proof kernel
3Q1BN1/3pr1qr/N1NP1b1b/R4n1n/1pR1n3/1KPB1pR1/2nk2Np/4r3 b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Bb2 c5 Bc1 cxb4 a4 gxh4 Nh3 b5 Ng1 b3 Bb2 b4 Ba3 Ba6 Bc1 Bb5 axb5 Qf6 Na3 Qb6 Nb1 Qd8 e4 Ke7 g4 Kf6 d4 Kg5 Kd2 f5 d5 h5 b6 a5 e5 b2 b7 a4 e6 a3 d6 f3 e7 Kf4 e8R h3 g5 h4 g6 f2 g7 h2 Re5 h3 Ra5 a2 Ba6 f1R Qh5 Qe7 Qd1 Rh7 Rc5 Nh6 g8N Qg7 Qe1 Nc6 b8N Nd4 Qe7 Re1 Nc6 Re8 Qd8 R8e7 Nc3 b1N+ Kd3+ Nd2 Nge2+ Kf3 Nd5 f4 Rc4 Ne4 Rg1 h1N Nc7 h2 Rg3+ Kf2 Bd2 f3 Nf4 Nhf5 Ng2 Kf1 Bh6 Kf2 Rb1 a1B Bb5 Bb2 Ra1 Bc3 Ra5 Ba1 Rg6 Nhg3 Na6 Nh5 Rg3 Bc3 Rc5 Bb2 Kc4 Ke2 c3 Nc2 Nab8 Bc1 Na6 Bg5 Kb3+ Kd1 Bd3 Bf6 Ne3+ Kd2 Rc4 Qg4 Bg7 Qg6 Ng2 Qf7 Bh8 Bh6 Bg7 Qg6 Bf8 Qf7 Kb2 Qg7 Kb3
3K1N2/BrPbpN2/Rb4r1/1N4pP/p2r1b2/2Bk3r/BnQpn1q1/6RN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 h4 Kg6 f4 Kf5 b4 a5 c4 d5 b6 e3 Kd3 e2 b7 e1R c5 g3 b5 g2 b6 Nf6 c6 Ne4 c7 Nd6 Bd2 Nc4 Ne2 g1B Na3 Ra7 Qc2 Bd7 Nb5 Nc6 b8N Rb7 Bc3 g5 Ra3 Bg7 h5 Rh6 Ra2 Rg6 Ra4 Be3 Rg1 Be5 Bg2 Ra1 Bf3 Ra3 Ng3+ Ke6 Nh1 Kf5 Na6 Rb3 Nc5 Qa8 Ne6 Bf2 Nd8 Nb2+ Kd2+ d3 Nf7 d4 Bd5 Ra3 Ba2 Ke4 f5 Bd6 f6 Be3+ Ke1 Bdf4 Kf1 Bf2 Kg2 Rb3 Ra3 Ke3 Ra4 d2 Ra3 d1R Ra4 Rb8 b7 d3 Ra3 Nd4 Ra4 Bc6+ Kh3 Ne2 Kg4 Ra3 Kf5 Be8 Rc4 a4 Ke6 Rb3 Rc6 Ke4 Ra6 Bb6 Nh8 Bd7+ Kf7 Rd8 b8B Rb1 Ba7 Ra3 Qd1 d2 Qc2+ Ke3 Ra5 Qg2 Ra6 Be8+ Kf8 Rd4 f7 Rb3 Ba5 Bd7 Bc3 Bf5 Ke8 Bd7+ Kd8 Ra3 Qc1 Kd3 f8N Ke4 Ba5 Rh3 Nf7 Kd3 Qc2+ Ke3 Qc3+ Nd3 Nfd6 Bc5 Na3 Rb7 Nf7 Bb6 Nb5 Ke4 Qb3 Nb2 Bc3 Kd3 Qc2+
Rq2qbr1/7n/Br5N/kQp3p1/pn1r2P1/3rNRp1/PBb4R/2BBK3 b - - 0 1 legal: proof: c4 Nf6 c5 Ng8 b4 d6 b5 c6 bxc6 dxc5 f4 h5 g4 e5 Qc2 exf4 Qb3 h4 Qg3 hxg3 e4 b5 d4 a5 h4 f5 c7 Kd7 h5 Kc6 e5 Kb6 h6 g5 d5 a4 e6 b4 e7 b3 e8B b2 d6 f3 d7 f4 h7 Na6 Bg2 Rb8 Ne2 Ka5 Nd4 Rb6 Nc3 b1Q Nf5 Nf6 Nh6 Nb4 Nd1 Rg8 h8B Nh7 Ne3 Ba6 c8Q Bd3 Qb8 Bc2 Bg6 Qe8 d8R Qb3 Bf1 f2+ Kd2 f3 Ba6 f1R Rh2 f2 Bhb2 Rh1 Bgd3 f1R Be2 Rff6 Bd1 Rf3 Qb7 Rf4 Ra8 Rd4+ Ke2 Rf1 Qd7 Rff6 Ke1 Rfd6 Ke2 Rb8 Bd2 Rd3 Qc6 Bb1 Bc2 R6d4 Kf1 Qd8 Ke2 Qf7 Bb3 Bc2 Rf1 Bd1+ Ke1 Qfe8 Rf3 Rb6 Bdc1 Qb8 Qd7 Bc2 Qc6 Bb1 Bd1 Bc2 Qb5+
1nK2n1B/4R1q1/k1R3pb/2P1BB1b/pbNPrR2/2b1B1pp/2N1Q2q/3r4 b - - 0 1 illegal: No proof kernel
1n2BK1N/1bB3R1/4pP1R/2ppQ2p/1R1q1q2/n1bqrPk1/2N2q2/R2Br3 b - - 0 1 illegal: No proof kernel
r2QrBR1/2R3N1/p1nKpBnn/1q2B3/2kP1bR1/2Np1p2/B1q4P/2nb4 b - - 0 1 illegal: No proof kernel
2KB2R1/5p1B/N2BN1r1/nn1prN1P/k1bqbpP1/2R2Qb1/5b1p/5Nq1 b - - 0 1 illegal: No proof kernel
8/B1NPq1n1/K1pq4/1pRN1r2/3k1B2/1B2Qb1p/nP1r2Bp/2bNbb1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 f5 dxc4 f6 Qd6 a5 Qb6 axb6 exf6 Nh3 f5 Ng1 f4 g4 Ke7 e4 Ke6 Ke2 Ke5 d3 a5 b7 f5 g5 h5 g6 h3 g7 c6 Ra4 h4 Qc2 c3 Ra2 h2 Ra4 h3 Ra3 a4 Rb3 f3+ Ke3 a3 Qd1 a2 Ne2 a1Q Nf4 c2 Ra3 f2 Qe2 Nf6 g8B Rh5 Bb3 Ne8 Nd5 Bb4 Bg2 f1B Nbc3 Ng7 Nd1 Na6 Qe1 Ra7 b8B+ Rc7 Ba7 Rd7 Bd2 c1B Ra4 Bc3 Rc4 Nb4 Rc5 Qa3 Qe2 Na2 d4+ Ke6 Kd3 f4 e5 f3 Bf4 f2 Kc2 Be1 Qe3 Kf5 e6 Rg5 e7 Qb4 Rc4 Qd6 e8N Rd8 Nec7 Be6 Nf6 Bd5 Rc3 Bf3 d5 Qe7 d6 Rd7 Nfd5 Rd8 Qd2 Ke4 Rc5 Rf5 Qe2+ Kd4 d7 Rdf8 Bc4 Re8 Kb3 Qd6 Qe6 Re7 Qh6 Re2 Ka3 Rd2 Bb3 Bd3 Qe6 f1Q Qe8 Qe2 Qe7 Nc3 Kb4 Na2+ Ka5 Qe3 Qg5 Qee7 Ka6 Bf1 Qh6 Qe8 Qe6 Qee7 Qe3+
b1N3Rb/1p4pR/5k1N/2Nqp3/rnQ1P2n/1Rp4K/2brBP2/3bBRq1 b - - 0 1 illegal: Other
r1k4B/1pPB1b1r/NK1bp3/2r1R1r1/p1N5/4n1RQ/p1NR3P/Nn1q1q2 b - - 0 1 illegal: No proof kernel
nr1r2Rk/p6r/p2qR3/P1qpN1K1/Pn3Qp1/3r2B1/2NBbB2/N1bN4 b - - 0 1 illegal: No proof kernel
bKnB2b1/p1Rk1q1r/pB1qp3/2n1Qr2/P1Pn1N2/R6p/N1B3N1/5nB1 b - - 0 1 illegal: No possible last move, all moves rejected
1nK5/p2nP2Q/1r3bN1/1ppRRNB1/NP2b3/2kbB3/R1p4b/1qq2Rr1 b - - 0 1 illegal: No proof kernel
Br1B4/kb1N1RP1/n4q2/pQ4nK/1nb1p1Nb/p5p1/1BN1Pq2/1N1qR3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 g5 bxa4 g6 fxg6 Kd2 g5 Ke1 g4 h4 g5 Bf4 a5 Kd2 g3 Ke1 g4 Bc1 Ra6 Nc3 Rg6 Nb1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 b4 h5 f4 d5 c4 Kd7 c5 Kc7 c6 Kb6 c7 e5 b5 g2 Kf2 h4 g6 d3 f5 d4 g7 d2 f6 a3 f7 d3 Bb2 g3+ Kf3 h3 Qb3 h2 Nh3 d1N Nf2 g1Q Ng4 d2 Bg2 Be7 f8B Bh4 Be7 Ba6 c8N+ Kb7 b6 Ne3 Qa4 d1Q Na7 Nd5 Qb5 Ngf6 Nc6 Nh7 Nd4 Nb4 Nc2 Qc5 Re1 h1B Bg5 Q8d6 Bd8 Qf6+ Ke4 Ka8 b7+ Ka7 Bf3 Qf2 Bg2 N8c6 b8N Bb7 Nd7 Na6 Bc7 Rb8 Bd8 Qh6 Bf3 Ncb4+ Kf5 Ng5 Rf1 Qhd6 Re1 Qe7 Kg6 Qf6+ Kh5 Bd5 Rf1 Bc4 Ba8 Bb7 Re1 e4 Rf1 Q2d4 Rf3 Qf2 Rf4 Qfd6 Rf7 Qdf6 Nc3 Qdd4 Re1 Qd1 Nb1
2r1q3/1K2nnBB/1p1Bk1b1/1PNN4/R2P3b/4Rnb1/Rp1pbb1p/R5Q1 b - - 0 1 illegal: No proof kernel
R1BR2k1/1b1bN3/3qN1K1/q1B1p1p1/4P1B1/2NQ4/n2bp1pP/nqNrb3 b - - 0 1 illegal: No possible last move
1k3N1q/1pq4R/1Ppn2Qr/b1qr2R1/K2bRRb1/b5BN/1ppPBN2/8 b - - 0 1 illegal: No proof kernel
1r1RnN2/nNQb1N2/1B3p1r/1k1p4/2P1nrr1/2R2Pq1/p1p1K3/BBN3q1 b - - 0 1 illegal: No possible last move, all moves rejected
KB2b1R1/p1bR2N1/1b2b2Q/2qBr2q/P1Nk1nPp/pNN5/1pnn4/2B5 b - - 0 1 illegal: No proof kernel
1n5K/3P4/Rq1p1Rpk/q1RN2q1/qN2rn2/1bp1npRB/3b2P1/N1B4Q b - - 0 1 illegal: No proof kernel
BN1N4/n3r1pR/1B3B2/3nRp1K/4bPnP/1b2n1pp/n2B1N1k/Qr4b1 b - - 0 1 illegal: No proof kernel
3r4/B1N1p2N/p1nRp2n/1pP1Q2n/nnk2B2/3NRb2/4PrnN/1BbK4 b - - 0 1 illegal: No proof kernel
N7/bbB1Kp2/p1pBR1Bq/n3B1nR/2P2P2/1rn3R1/p4kpN/2b2Q1r b - - 0 1 legal: proof: e4 b5 d4 d5 g4 h5 a3 hxg4 a4 e5 dxe5 dxe4 Qd3 bxa4 Qf3 Bf5 Qd1 Bc8 Ke2 Ke7 Ke3 Ke6 Kf4 g6 b4 g3 h4 a3 c4 a2 h5 g2 h6 a6 b5 e3 b6 e2 h7 e1N b7 Nf3 Ba3 Ng5 Bd6 Ne7 Nf3 g1B Nh2 Nbc6 b8B Bh6 Na3 Na5 Bd3 c6 Nb5 Qf8 Qf1 Bb7 Bbc7 Rb8 Re1 Qg7 Re3 Nd5+ Kg4 Nc3 Rg3 Qf8 f3 Ba7 Bc2 Rg8 h8B Rg7 Kf4 Rh7 Bg7 Nge4+ Kg4 Bc1 f4 g5 Bf6 Qh6 Bd3 Kd7 Kf5 g4 Bc2 Ng5 e6+ Ke8 e7 Kd7 e8R Rh8 Rh3 g3 Re6 g2 Rg3 Rh7 Bb6 Rhh8 Nc7 Rh7 Na8 Rhh8 Re2 Rh7 Bfe5 Rhh8 Kg4 Ke6 Bbc7 Rh7 Nf3 Rhh8 Rh5 Rh7 Re4 Rhh8 Kh4 Kf5 Nh2 Qg6 Bd4 Bc8 Nf3 Rb3 Rh7 Bb7 Re6+ Nge4 B4e5 Qf6+ Kh5 Qg7 Reg6 Qf6 Kh6 Qh4+ Kg7 Qg5 Rhh3 Rh4 Kf8 Qh6+ Ke7 Rh5 Bd1 Ng5 Re6 Ke4 Bc2+ Ke3 Bg6 Rh4 Qd3+ Kf2 Rh2 Rg4 Rh5 Rh4 Qd1 Rh1 Nh2 Nh7 Qd3 Ng5 Qf1+
1N2bQR1/4BpPr/pp1bB2n/6p1/r2rpn1n/N2qkN2/4P3/1NKR3R b - - 0 1 illegal: No proof kernel
1RRn1b2/P3p1N1/RN1N2p1/1p2bNrp/Q1n1K1B1/b3B1q1/r3p1P1/1r1k4 b - - 0 1 illegal: No extended proof kernel
1KnR3B/N2N2pq/6B1/rnpb1pR1/P3r2P/2br1p2/Rp2k3/R1Q1qN2 b - - 0 1 illegal: No proof kernel
n4KRk/1nqpBB2/2P3q1/1prBB1N1/1p4R1/5N1b/1p3pnP/b1NQr3 b - - 0 1 illegal: No proof kernel
K1BRBb2/Pn4p1/RRp2N2/q1B2pQ1/1b2P1b1/3b2kp/1pn2r2/r4RN1 b - - 0 1 illegal: No proof kernel
7Q/PprNppB1/1R3B2/1b6/1bb1kpnp/4NNrq/2RN3P/n2B1b1K b - - 0 1 legal: proof: e4 a5 d4 d5 f4 g5 b3 gxf4 b4 axb4 exd5 c5 Ba6 cxd4 Be2 Ra4 Bf1 Ra8 Kf2 Kd7 c4 Kd6 g4 Ke5 Kg2 h5 a4 b3 a5 d3 g5 d2 c5 b2 a6 h4 d6 Qd7 c6 Qf5 d7 Rh6 d8B Rh5 a7 Nd7 c7 Bg7 g6 Nh6 Be2 Qd3 Nf3+ Kd5 Ra2 Be5 g7 Ng4 g8N Bd6 Nh6 Bb4 Nf5 Ke4 Ne3 Nc5 Kg1 Be6 c8N Qd7 Bb6 Nb3 Bd4 Rc5 Bf6 Rc7 Nb6 Na1 Kg2 Qd3 Nd7 Bc4 Qf1 Rf8 Bd1 Rg8 Rg1 Rg6 Kh1 Rg5 Qg2 Qf1 Qf2 Qh3 Rg2 Rg6 Ra6 Bf1 Rb6 Bb5 Na3 b1B Nac4 Bd3 Bcb2 Bf1 Bg7 Rg5 Bbf6 Rg6 Ba4 d1B Qb2 Bde2 Bd1 Bd3 Rc2 Bde2 Na5 Bec4 Nb3 Ne5 Qc3 Rg3 Qb2 Ng4 Qe5+ Kd3 Qh5 Ke4 Qh6 Rc5 Qh8 Rc7 Nbd2+
2B3N1/p1p2b2/Q1PnrR2/1pnN2B1/pR1q4/1Bq3Rq/KBbP3p/4k1b1 b - - 0 1 illegal: No proof kernel
3N1q1B/3BR3/bpq2r1P/1P3p2/Kp1pp2n/BQ1N2q1/nRN3k1/2r1r2N b - - 0 1 illegal: No proof kernel
1n2NrB1/1R5R/kB4rq/1qPQ3b/2qBpn1p/Np2K1n1/2pp3P/1NN5 b - - 0 1 illegal: No proof kernel
1bb5/3B1K2/p1qBpRrP/2pn1p1N/1R1q1p2/4P1qR/2QNk2N/2R1nn2 b - - 0 1 illegal: No proof kernel
3rb3/p1KpNn1B/R1B3pP/BRb1p1q1/1r6/P1rN2qp/1NbN4/k6Q b - - 0 1 illegal: No proof kernel
Rrnb4/2Qn2Br/p4R2/4Nn1B/q2p1Kp1/3P2N1/1Rp1B1Pp/k3nB1n b - - 1 2 legal: proof: f4 e5 a4 exf4 h4 g5 c4 b5 c5 bxa4 c6 Nxc6 h5 Nb4 Kf2 Bb7 Ke1 Be4 Kf2 Bg6 hxg6 Nc2 Kf3 Ke7 b4 Kd6 e4 Ke5 b5 Kd4 g7 c5 e5 h5 d3 f5 b6 d5 b7 a6 b8R h4 e6 a3 e7 g4+ Ke2 a2 e8B h3 Ba3 c4 Rb7 f3+ Kf2 c3 Kg3 h2 Bc1 f2 Rb8 Qa5 Rb6 Be7 Nh3 Rh7 Na3 Bd8 Ba4 Ne1 Be8 c2 Qe2 Kc3 Rb2 d4 Bh6 Ne7 g8B Qa4 Kf4 Nc8 Nc4 Rb8 Rab1 a1N Ng5 Nb3 Bg7 Nc5 Qe7 Nd7 Qf7 Rh5 Ne5 Rh7 Be2 f1N Qe7 Rb5 Bd5 Ng3 Rf1 Nh1 Bdf3 Rb3 Bh5 Rb8 Nh3 Rh8 Ng1 Rh7 Kg5 f4 Rf2 Qb4 Bf1 Qa4 B3e2 f3 Kf4 Qa5 Rb7 Qb4 Ra7 Qa4 Rd1 Kb2 Rb1+ Ka2 Rb2+ Ka1 Ra8 Ng3 Qc5 Nf5 Bd1 Nce7 Qc7 Nc8 Rd2 f2 Ne2 Rb6 Ng3 Rb8 Re2 Nh6 Re3 Nf5 Bfe2 f1N Rf3 Nd2 Bf1 Ne4 Bde2 Nf2 Bh6 Nh1 Bf8 Be7 Bg7 Bd8 Ke4 Ne3 Rf6 Nf5 Kf4
1r5R/p1BR1r1b/Np1P4/2Bbp2N/3k1b1p/pPn5/BQBp4/1q1n1RK1 b - - 0 1 illegal: No proof kernel
1QKbq3/pp3pB1/3Pr1R1/2p1N3/P2Rprnn/1N5B/1q1b1NNp/2k2B2 b - - 0 1 illegal: No proof kernel
6N1/1p1k2P1/qp1QrR2/1Rp1pKn1/4P3/N4RpB/1pb2BrR/Nn2r1n1 b - - 0 1 illegal: No proof kernel
1q6/B2B4/1p2Bb1p/2ppbNQp/rPRB4/2r1R1bP/1K2pn1R/N4bk1 b - - 1 2 illegal: No proof kernel
R1R1R2K/3ppN2/1Bp5/1QNb1pn1/1r2R1pP/pk1pbBq1/4P1nq/2B5 b - - 0 1 illegal: No proof kernel
n6R/N1pb4/B1P3r1/2nK1pnB/rrRBn2n/2b1qP2/3k1bR1/R1n3NQ b - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 Ke2 Kd7 Ke3 Kc6 a4 Kc5 c4 h5 g4 e5 d3 f5 g5 b5 a5 b3 d4+ Kb4 a6 b2 d5 h3 f3 h2 g6 h4 g7 h3 c5 Bd7 d6 Nf6 g8R Nd5+ Kf2 e3+ Ke2 e4 a7 Nb6 c6 Qe7 Rg7 Na6 Rg4 Bg7 Qd3 Rh6 Rg3 Rg6 Qd1 Bc3 Ra3 Nc5 Nd2 b1N Nc4 Nd2 Na5 Ndb3 Bd2 Nc1+ Ke1 e2 Kf2 e1B+ Ke3 Bf2+ Kf4 e3 Ra2 e2 Nb7 e1N Rc2 Kb3 Bd3 b4 Be3 Qe8 Be4 Kc4 Bd4 b3 Rg5 b2 Rg2 b1R Bd5+ Kb4 Be6 Qe7 Ke5 Qg5 Rg4 Ng2 Bf7 Nh4 Rg2 Rb2 Be8 Kc4 Qe1 Kd3 Bf7 Rb4 Be8 Bd2 Rc4 Bc3 Qf1+ Kd2 Bf7 Be6 d7 Qh6 d8R Bd7 Nd6 Qg5 Ne2 Qh6 Rhg1 h1N Nb5 h2 Rh8 Ng3 Rh1 Qg5 Ng1 Nge4 Be8 Qe3 Bf7 Rb8 a8B Ra4 Bb7 Na8 Kd5 Ng5 Ba6 Rb6 Na7 Rb1 Ne2 Rbb4 Rhg1 h1N Be8 Rg8 Bh5 Ng3 Rh1 N3e4 Qg1 N1d3 Qh2 Rg7 Ra1 Nc1 Ng1 Rg6 Qh1
B4k2/1q1p2rr/1rp3r1/2KBRr2/1B3N2/BQ3bbn/2PPR2r/1rqn1N1N b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 g5 axb4 g6 hxg6 Ba3 g5 Bc1 g4 Kf2 g5 a4 f5 h4 b5 e4 g3+ Ke2 g2 Kd3 g4 Kd4 b3 e5 g3 e6 b4 e7 f3 h5 f2 a5 b2 h6 b3 a6 f4 a7 f3 h7 Na6 Rh3 Bb7 Be2 f1R Qe1 f2 Bd3 Qc8 Bb5 Bf3 Bd3 c6 Bb5 Nc5 Be2 Nd3 Ra5 Nh6 Rd5 Ng4 Re5 Ne3 Rh2 Nf4 Nh3 g1R Kc5 g2 Bc4 Nd1 Nc3 b1R Ba3 b2 Ne4 Qb7 Qe3 Rh1 Bd5 g1R Qd3 Rg7 Ng3 Rfg1 Nf1 R1g6 Qb3 Rb8 Rg2 Rh2 a8B Bh5 Ng1 Nh3 Ne2 Bg4 Nf4 Bf3 Ne3 f1R Re2 Qc7 Bb4 Rb6 Ba3 Rff2 Nf1 Qb7 Bb4 Rfg2 Ba3 R2g5 Bb4 Rf5 Ba3 Rhg8 h8B Rh7 Bb4 Bh6 Bg7 Bg5 Bf8 R8g7 Ba3 Bh4 Bb4 Re6 Ba3 Kf7 e8N Bg3 Nd6+ Kg8 Ne4 Kf7 Be7 Ke8 Bh4 Kf8 Nf2 Reg6 Bg5 Ra1 Nh1 b1Q Bh4 Qc1 Bd8 Rb1 Bc7 Rb4 Ba5 Rb6 B5b4
N1b1r3/1Qpk1Bb1/4n1p1/2R1r3/r1P2RKN/RRN2r2/2brr1P1/Bqnq4 b - - 0 1 illegal: No proof kernel
1nK5/pp4rb/P5BN/n6n/3Q1pNB/br2b2r/NP1n1RB1/R1nq1N1k b - - 0 1 illegal: No possible last move
4q2b/RB2qnr1/1Np1N3/K1B1N2Q/1R1qpp1q/2q1PPrk/2nN4/nB5b b - - 0 1 legal: proof: c4 d5 b4 dxc4 h4 g5 b5 gxh4 b6 axb6 Qa4+ b5 Qd1 b4 g4 Kd7 d4 Ke6 Kd2 b5 a4 h5 a5 f5 g5 h3 a6 b3 Kc3 b4+ Kb2 h2 e3 f4 a7 Kf5 g6 e5 g7 h4 d5 h3 d6 Bb7 d7 Na6 Bg2 Rh7 Ra2 c3+ Ka1 c2 Kb2 Qe7 d8N Nh6 g8B Bg7 Nc6 Nf7 Ne2 Kg4 Rg1 h1Q Qd5 h2 Ned4 Bh8 Nb8 Rg7 Qe4 Nc5 Bd2 c1Q+ Ka1 Qc3+ Rb2 Bd5 Rc1 Qd1 Nd7 h1Q Qh7 Qhh4 Ne6 Rc8 Be4 Kh3 a8N c6 Qh5 Rg3 Nab6 Rc7 Be1 Qdd3 Nd2 Qdd4 Bb1 Bh1 f3 e4 Ne5 Qe8 Bd3 Ra7+ Ba6 Rd7 Kb1 Qe7 Ra2 b2 Bb7 Nb3 Ra7 Na1 Ka2 b1N Rd1 Na3 Rb1 N3c2 Rb3 Qe8 Rb1 Qcc5 Rb2 Qce7 Rb1 Qdd6 Kb2 b3 Kc3 b2 Kc4 Na3+ Kc3 N1c2 Kb3 Na1+ Ka4 Qd4+ Ka5 Rc7 Nf1 N3c2 Bb4 Rd7 Bc5 Rc7 Nd2 Rd7 Rd1 b1Q Rc1 Qb3 Rb1 Qbc4 Rb4 Qcc3 Nc7 Nd6 Ba2 Nf7 Ne6 Rd5 Nd3 Rdg5 Ne5 Rg7 Bb1
1k1n2KQ/n2p3B/NrqP3r/3n1p1R/2p2qB1/qbP1bNrB/8/B1R1Nr2 b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 b5 gxh4 b6 axb6 Ba3 b5 Bc1 b4 Kf2 b5 Kf3 c5 Ke4 h5 Ke5 f5 e4 h3 g4 h4 d4 b3 a4 f3 a5 h2 a6 b4 c3 h3 g5 b2 g6 f2 a7 b3 d5 Nc6+ Kf4 Qh4+ Qg4 Kd8 e5 Kc7 e6 Nd8 Ke5 Ne7 g7 Bb7 g8B Bh6 Qd4 Be3 Qc4 Rh6 Nd2 b1R Ndf3 b2 Qd4 c4 Bh7 Bc6 Be2 f1R Ne1 Ba4 Bg4 Bb3 d6+ Kb7 Ngf3 Nd5 e7 Rb8 Rg1 h1Q e8N h2 a8B+ Kc8 Rg2 Rb6 Nc7 Kb8 Bh3 Rg1 Rg5 Rg3 Rh5 Qg1 Bg4 h1Q Bc6 Nf6 Be4 Nd5 Bd3 Qgh2 Bf1 Qe2 Bfh3 Qc2 Ra5 Ra1 Ra2 b1N Bb2 Qc1 Ra5 Na3 Na6+ Ka8 Ra4 Nb5 Rb4 Rb1 Ba1 Na7 Ra4 Qg2 Ra2 Qa3 Rc2 Rb2 Rc1 Rf2 Qf4 Kb7 Qg5 Qh1 Qg7 Rf1 Qh8 Nc7 Ng1 Qc6 Ngf3 Qg5 Bg6 Qf4+ Kf6 Nd5+ Kg7 Kc8 Kg8 Kb7 Bh7 Kc8 Nc5 Kb8 Na6+
1n2Bnqk/R2n4/1RpBb3/Kp1r2rp/N1P2b1P/1R2rQ1B/3Br3/3Nqb2 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 f4 Kf7 a4 b5 d4 e5 Kd2 g5 c4 Kg7 h4 h5 f5 e3+ Kd3 g3 a5 b3 Kc3 c6 a6 g4 d5 e2 d6 e1Q+ Nd2 b2 Kb4 b1B a7 e4 Ne2 g2 Qb3 g1R Qe3 g3 Rh3 g2 Nc3 Ne7 d7 Bd3 Qf3 e3 Nde4 e2 Nc5 Ng6 Bd2 Bd6 Nd1 Re8 f6+ Kh8 f7 Re3 f8B Bf4 Bd6 Qg8 d8R Be6 Ka5 Nf8 Ra3 Qf2 Rc8 e1R Na4 R1e2 Rc7 Qe1 Rb7 Na6 Rg3 Rd8 a8B Nb8 Rb6 Rd7 Bb7 Rd8 Bc5 Rd5 Rh3 Rh1 Bd6 g1N Bg2 Rh2 Bf1 Rhg2 Bc8 Rg3 Bd7 Rgg5 Qg4 Nf3 Be8 Ne5 Qf3 Ned7 Rg3 Rh2 Bh3 Bf1 Rb3 Rhe2 Rg4 Rgf5 Rg7 Rg5 Re7 Nc5 Rc7 Ncd7 Ra7
nrB4r/1ppQB3/1Pq5/1RPb2nk/bRrb1qN1/8/1p1n1rB1/3NK1BN b - - 0 1 illegal: No proof kernel
kNNBb2K/1q2N3/p1N2p1R/nr1qpP2/P4QB1/r1r1Rb2/rb2q3/B4n2 b - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 g5 c5 gxh4 c6 bxc6 Ba6 c5 Bf1 c4 Ke2 Kd7 Ke3 Kc6 Kf4 Kb7 Kg5 c5 b4 h5 g4 h3 d4 h2 f4 e3 f5 e2 b5 e1Q a3 f6+ Kg6 e5 d5 h4 g5 c3 b6 c2 d6 h3 d7 c4 Qd4 c3 Kf7 Qe2 g6 Nc6 g7 Na5 Nf3 Ne7 g8N Nd5 Ne1 Ne3 Bd2 c1R Ne7 c2 Nc3 Rb1 Ncd5 c1R Bc3 Rb5 Nc2 Rh6 Bg2 Nf1 Kg8 Rh4 Qd2 Ra4 Ncb4 Qc7 d8B Bd7 Qd4 Be8 Kh8 Qd6 Bb2 Rc3 Bf3 Bh6 Qg4 Bc1 Nc8 Qd7 Nde7+ Qd5 Rb1 Kb8 Ba1 Bb2 Qf4 Qb7 Rg1 h1Q Re1 h2 Bg4 Qhd5 Rg3 h1B Rh3 Bf3 Rh4 a6 Rh6 Ra7 Nbc6+ Ka8 Nd6 Rac4 a4 Ra3 Ndc8 Rcc3 Rd1 Ra2 Rd3 Rca3 Rc3 Qbd7 Re3 Rc7 Nb4 Rcc3 b7+ Kb8 Nd6 Ka7 b8N Ka8 N4c6 Qb7 Ndc8
n2KBqR1/1NpbBR2/nn2bRp1/1r2p3/1r2BbqQ/4P1P1/N3k1qn/3B4 b - - 0 1 illegal: Other
K1R1r1r1/p2BB2Q/2p1n1q1/b3R1q1/PNP3k1/B1n1rN1n/3Bp3/q4rNb b - - 0 1 illegal: No proof kernel
NQNr1n1B/b2bBp1R/n1r3p1/k1b2Prn/r1p1q3/2nR1N2/2PK4/4NB2 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 axb6 Bh3 b5 Bf1 b4 f4 Kd7 d4 Kc6 a4 Kb6 h4 e5 h5 c5 f5 g3 d5 g2 d6 g6 h6 c4 d7 e3 h7 e2 Be3+ Bc5 Bf4 e4 Be3 b3 Rh6 b2 Kd2 e1B+ Ke2 Qh4 d8N Nd7 Nc3 b1R Nb5 Bf2 Na7 Ka5 Nf3 g1R Qd3 b5 Bc1 e3 Qd1 b4 Bb2 b3 Bg2 Qe4 Bf6 b2 Qd6 Nf8 Ra3 Bd7 Bf1 Rg5 Be7 Nf6 Ne1 Nh5 Ne6 Ra1 Qh2 b1N Nd4 Rc8 Rd3 Rc6 Qb8 Rg8 Kd1 e2+ Kc1 Nc3+ Kd2 Rh8 Nc8 Ba7 Ndf3 Bfc5 Qg3 Rg8 h8B Ra2 Rh7 Ra3 Ng2 e1N Qb8 Ra2 Rd4 Nd3 Nge1 Nb4 Rd3 Ka6 a5 Ra4 Qf4 Kb5 a6 Ka5 Qd6 Ne6 Qb8 Rd8 Kc1 Nf8 Kd2 Bab6 a7 Na6 a8N Ba7 Qb1 Ne2 Qb7 Nc3 Qb8
b5Rb/1n1qR3/BNB3p1/1bp2n2/1NP1qrP1/N1qBkp1b/rq6/1QB3K1 b - - 0 1 illegal: No possible last move
nr6/1B1qb1RB/R2k1p2/2q1N2K/1R2p1rn/rRp2b2/1nPBP1r1/2N1nQ2 b - - 0 1 illegal: No proof kernel
B2Kn1b1/RrBN2B1/1NR2p2/r1b1n2R/1qp2P2/r1r1Qp2/1nPq3n/1B2k3 b - - 0 1 illegal: No proof kernel
n1bR1r2/pbbp4/N1kqp3/7r/P1RQ1N2/r1B1NBB1/nrB1PK2/b1q5 b - - 0 1 illegal: No possible last move
B2br3/RN1p3p/b1N1R3/Rq1pn1n1/q5B1/br1Bp1KP/nQ1rP3/1kB5 b - - 0 1 illegal: No possible last move
3r4/2B1r2N/Rpk1bp1p/4q2Q/1pBNnqR1/1R3RbP/n4P2/qr3bKB b - - 0 1 illegal: No proof kernel
1q2N3/prnQ1KpB/1p2NNP1/8/2rk4/1Pb2BRn/bp2nR2/1nrbB2B b - - 0 1 illegal: No possible last move
r3n1q1/q1p3kN/3ppb2/3QB2r/1nP1PRBp/1b2RN2/1r1r4/2KRbB1R b - - 0 1 illegal: No proof kernel
rB2N1Bb/R1KB4/p1pNN1r1/RN2q2Q/1bP1b3/P3q1n1/2p1n1p1/2b2qk1 b - - 0 1 illegal: No proof kernel
1kb1n3/pqR3pn/n1B2B1N/P1NB3b/p2Q1Rr1/3Kb1b1/n1Np2P1/N4r2 b - - 0 1 illegal: No proof kernel
3b1KBn/Rbr5/1pR5/1PNq2n1/1BpQbB2/1RPpq3/3krpNp/B2n4 b - - 0 1 illegal: No proof kernel
1Nnb3K/2rp1p2/1RRPB3/Rppr1P2/1R1N1nn1/r1q2k2/2bq1p2/B1Q2N2 b - - 0 1 illegal: No possible last move, all moves rejected
1KBRb1k1/R1pRrq2/5pnN/3p1p2/2q4b/qpPR1P2/2Q1b1r1/1NB1B1n1 b - - 0 1 illegal: No proof kernel
4BnBN/1Knp2pp/1Brr4/1Rp2N2/1pb1qNPn/2k5/2PB1Q1b/q4r1R b - - 0 1 illegal: No proof kernel
1n2nb2/p4Nrb/3Np1NR/2p1qpR1/Pp1RB3/1Pn2kn1/1KQrRB2/2n5 b - - 0 1 illegal: No proof kernel
4B2K/2NR3b/1nbp3b/R1p2bpr/B1nB1NBk/3pp3/r1P1Pq2/Q2R1n2 b - - 0 1 illegal: No proof kernel
3n1QR1/1p1q2p1/2rbqqk1/2NB3p/3Br1Rn/Bp4Pq/NP1p1Nb1/1K5N b - - 0 1 illegal: No proof kernel
Bbq1bKB1/2p4p/RQ3pN1/3rpRpN/1BPqr2P/2rB4/4k1n1/r3n1R1 b - - 0 1 illegal: No proof kernel
1n3q2/p1Brp2R/NppQ1R2/N1bn2kB/1Pb3np/R1P1rBp1/8/1r1R2K1 b - - 0 1 illegal: No proof kernel
R2b4/2rp2pp/NNq3RN/n3rp1P/q4P1b/k1p1n1QN/bB3p2/KB4B1 b - - 0 1 illegal: No possible last move
4r1r1/3kBb2/4b1P1/Kn1Q4/RR1B2B1/Np1nnqP1/r3Q3/BN4r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 c5 d6 cxd4 a3 bxa3 Rh6 Bg7 Rh5 Be5 Rh1 Bf4 Ke2 Bd2 Rh2 Bb4 Rh1 Ba5 Be3 Nh6 Bc1 Bb6 Ke1 Bc7 dxc7 Ng8 Kd2 e5 f4 h5 g3 b5 g6 e4 f6 b4 f5 a2 f7+ Kd7 f8B b3 f6 e3+ Kd3 e2 Kc4 e1N Kb5 h4 f7 h3 Bb4 h2 f8B d3 Bc3 d2 Bd4 Ne7 Bh3+ Nf5 Bb4 Re8 Qe2 d1R Bf4 Na6 Bg4 Nd3 Bfe5 Qf6 Nf3 Rg1 Ka5 Qc6 Nfd2 Qf3 Na3 Rg8 Re1 a1R Be7 Ra2 Ra1 Rb8 Nb1 Ra8 Bh5 Ne3 Bh8 Re1 Rf1 h1B Rf2 Rg1 Bg4+ Qf5+ Bhe5 Bd5 Rf4 Be6 Re4 Qf3 Bg7 Bb7 Bgf6 Rad8 Bh8 Bd5 c8Q+ Ke8 Qb8 Nc7 Qb7 Nb5 Bhf6 Bf7 Rf4 Bde6 Qd5 Nd6 Bfe5 Kd7 Bh8 Rd2 Ra2 Rde8 Ba1 Rb2 Rb4 Rc2 Bhd4 Rd2 Nc4 Rb2 Raa4 Ra2 Qe4 Nb5 Nca3 Rg7 Qa8 Rgg8 Qd5+
7n/np2pr2/q1bRN1Pk/1R2K3/q3QBQq/2R1RP2/2B5/Nq5n b - - 0 1 legal: proof: d4 a5 a4 g5 h4 gxh4 e4 f5 exf5 d6 d5 Bg7 c4 Bd7 c5 Kf7 c6 Bc3+ bxc3 Bc8 c4 Ra6 c5 Rb6 cxd6 Rb4 d7 Rxa4 d6 Rf4 Bxf4 a4 Bc1 a3 Ne2 Nxc6 Ng1 Nb8 Ke2 Kg7 Kd3 h5 Ke4 c5 g4 h3 f6+ Kg6 g5 h4 f7 h2 f8Q c4 Nf3 c3 Nbd2 h3 Nb3 a2 Bf4 c2 Nfd4 c1Q Bd3 Qe8 d8R Bd7 Qg4 Nc6 f3 Rh7 Rc8 Rf7 Re1 h1Q Re3 h2 Ne6 Qb1 Bc2 Na7 Rcc3 Nh6 Qh8 Qhe1 Qd4 h1N Qa4 Bb5 d7 Qh4 d8R Qd7 Qb4 Bc6+ Ke5+ Qd3 Rd6 Kh7 Re4 Qa6 Qa4 Qd1 Rc1 a1Q Rb1 Qg1 Qb4 Q1a4 Na1 Kg6 Rb2 Qb1 Ree3+ Rf5+ Kd4 Nf7 Qc4 Nh8 Rb5 Be4 Qb4 Rf7 Ke5 Kh7 Nc5 Kg7 g6 Bd5 Qe4 Bc6 Bh2 Kh6 Ne6 Qab3 Bg3 Qba4 Bf4+
1K4b1/nNn2b2/1p1N1P1r/3NN1Q1/B1PQ2n1/k2Rb3/3rR2B/1bq2r2 b - - 0 1 legal: proof: b4 c5 g4 h5 gxh5 f5 d4 cxd4 e4 a5 exf5 axb4 a3 Ra4 axb4 Rxb4 Ke2 e5 Kf3 Ke7 Ke4 Kd6 c4 Kc5 h4 g5 f4 d5+ Kf3 b6 f6 e4+ Kg3 g4 f5 d3 Kf4 g3 Ke5 d2 h6 e3 h7 g2 f7 d4 f6 e2 h5 e1R+ Be2 d3 h6 Be6 Ra2 Rb2 Rh2 Kb4 Nf3 g1N Rh3 Na6 Nc3 Bc5 f8Q Nc7 Qg7 Rf1 Qg5 Ne7 Rg3 Rc2 Nd5+ Kb3 Ba3 Be3 Bd6 Nh3 Qa1 d1B Qd4 d2 Bd3 Rg8 h8N Nf2 h7 Nc8 Nf7 Na7 h8N Rg6 Bf5 Qe8 Nd8 Rh6 Nb7 Bg8+ Be6 Be2 Nf7 d1B Rh3 Qd8 Bd7 Bd3 Be8 Re2 Rd2 B3c2 Ba4+ Ka2 Rd3 Rd2 Rh2 Bb1 Rg2 Ne4 Re2 Nf2 Bf8 Qe8+ Kd6 Ng4 N3e5 Qb5 Be7 Qb2 Kd7 Qc1 Nfd6 Nab5 Kc8 Na7+ Kb8 Bdc2 Rb3 Bg6 Rd3 B6f7 Ne8 Rh7 Bb4 Rh6 Ned6 Rb2 Be1 Rc2 Bg3 Rd2 Nc3+ Kb2 Bh2 Ka3 Nd5+
6R1/2PNP1b1/1qb2rqb/Q1p4N/1kBB4/2qQ1Rn1/K1n2rbN/6N1 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 gxh5 Ke7 b6 Ke8 b7 Bd6 Bh3 Bb4 Bf1 Bf8 b4 Qf6 c4 Qe7 b5 Qd8 b6 axb6 c5 Nh6 d4 Ng8 d5 c6 dxc6 bxc5 Kd2 d5 Kc3 g5 Kb3 f5 e4 g4 h4 d4 h6 g3 h5 d3 h7 d2 h6 f3 e5 f2 e6 g2 e7 f4 Ba6 f1Q Qe2 d1Q+ Ka3 f3 Qb2 f2 Qb4 Qfe1 Ne2 f1B Kb2 g1B Be3 Qb6 c7 Kd7 Nd2 Kc6 Bc4 Na6 Bf2 Bg2 Bd4 Nf6 Nf3 Ne4 Ra3 Qc3+ Ka2 Bd7 Nh2 Be3 Rg1 Qdd3 Qa5 Ng3 Rb3 Rg8 h8N Rg6 h7 Rf6 Ng6 Beh6 h8Q Bfg7 Qh7 Raf8 Ngf4 Qg6 Nh5 Rf2 Ra3 R8f6 b8N+ Kd6 Rb3 Bdc6 Nd7 Nb4+ Ka3 Nc2+ Ka2 Qcb4 Rf3 Qc3 Re1 Bh3 Ng1 Bg2 Bf1 Kd5 Rb1 Qa7 Rb8 Qb6 Rc8 Qcd3 Rg8 Kc4 Qa7 Kb4 Qa6 Qd1 Bc4 Qd2 Qa7 Qc3 Qa8 Qe8 Qd3 Qg6 Qa5+
RR1B1qB1/2Q1r3/1R1Pn1p1/brR2qp1/N3r2P/q5k1/b1K4Q/2N1q3 b - - 0 1 legal: proof: b4 a5 bxa5 d5 g4 e5 c4 b5 cxd5 h6 f4 exf4 g5 hxg5 a6 Nc6 a3 Nb4 axb4 Bxb4 Nc3 Bf8 Nb1 b4 d4 Kd7 Kd2 Kd6 e4 c5 h4 f5 a7 c4 Rh3 b3 Ra2 b2 Qa4 c3+ Kd1 c2+ Kd2 f3 Bc4 f2 Qe8 f1Q Ra1 g6 Ra5 f4 Rb3 f3 Nc3 b1R Na4 f2 Rc5 Nh6 Bb2 Rh7 Ne2 Re7 Nc1 Nf7 Rb4 Rb8 a8R Be6 Rbb5 Rc8 Rb6+ Rc6 Bc3 Rb5 Ba5 Qe1+ Kd3 Qc8 Ba2 Nd8 e5+ Kc7 Qf7 Bg7 Qf3 f1Q+ Qe2 Qf8 Qh2 Bg8 Rab8 Ne6 d6+ Kd7 d5 Rc7 Nb3 c1Q Ra8 Qb2 Nc1 Qa3+ Kc2 Rb7 Bc4 Rb4 Bb3 Re4 Ba2 Qf5 Bc4 Rb8 Bb3 Qcf8 Bc4 Ke8 d7+ Kf7 d8Q Bh8 d6 Bg7 Rb2 Rb5 Qc7 Bh8 Bb6 Kg7 Bd5 Kh6 Rb8 Kh5 Bb3 Nf4 e6 Kg4 Bc4 Bc3 Bd5 Rd7 e7 Ba5 e8R Rde7 Ba2 Bc4 Ra8 Ne6 Reb8 Be2 Bd5 Bc4 Rb4 Ba2 Bb3 Nf4 Bg8 Kf3 Qb7 Ne6 Bd8 Kg4 Qc7 Kf3 Rc6 Kg4 Rcb6 Kf3 Rc4 Kg4 Rc5 Kf3 Qe2+ Kg3 Qh2+
1N1Br3/2qPqPp1/R1RN4/kb1B3q/2Q3qQ/1rNKN1q1/3p3b/4q3 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 e4 d5 c3 f5 c4 b5 axb5 fxe4 Bg2 axb4 Bh3 Na6 Bf1 Nb8 Ra7 c5 Ra5 Nc6 Ra1 Na5 Ra2 Nf6 Ra1 d4 d3 Nd5 cxd5 c4 Bg5 c3 Bc1 Nc4 dxc4 Ra6 Qf3 Ra3 Qd1 Ra8 Ke2 Kd7 f4 Kc7 h4 Kb6 c5+ Kc7 c6 Kb6 d6 e5 f5 b3 f6 c2 d7 g3 h5 g2 h6 b2 h7 e3 f7 e4 c7 Bd6 Rh6 Rb8 Nc3 b1Q Nh3 g1Q Bg2 Qe7 Qd3 Ba6 Qc4 Rhe8 h8Q Qh1 Bf3 Qb4 Rb1 Ka5 c8N Bh2 b6 Bb5 b7 Qa4 Bd2 c1Q Nf4 Qab4 Ng2 Qc2 Rf1 Qba4 Rc6 d3+ Ke1 e2 Qh4 Qab4 Bg5 d2+ Kf2 Qc1 Ke3 e1Q+ Kd4 e3 Bd5 e2 Rff6 Qeg1+ Kd3 e1Q Ne3 Qgg3 Nd6 Qhf3 Rh6 Qh5 Re6 Qc5 Rb6 Qcd1 Rg6 Qdg4 Bf6 Qee6 Bd8 Qe7 Re6 Qc7 Rf6 Ra8 b8N Ra6 Nde4 Ra7 Rfc6 Rb7 Nd6 Ba4 Rb3 Rb5 Ra3 Rb1 Rb3 Rb2 Rb4 Rb3 Rbb6 Bb5 Ra6+
2b4r/b1Bp3N/5QNR/rN3r2/3QbPkn/pb4N1/3rPR1r/2KB4 b - - 0 1 legal: proof: b4 a5 h4 e5 f4 exf4 d4 g5 d5 gxh4 a4 b5 axb5 c6 Rh3 cxd5 Rh1 d4 g3 f5 Qd3 a4 Qf3 Qf6 Be3 Nc6 Kd2 Na5 bxa5 Qg5 Qf2 f3 Qe1 f2 Qd1 Qg4 Bg5 f4 Bh6 f3 Be3 Qf4 gxf4 Kd8 Kd3 Ba6 Bc1 Ke8 Kd2 Bc8 c4 Kf7 b6 Kf6 b7 Kf5 b8Q h5 c5 a3 c6 h3 c7 h4 a6 h2 a7 h3 Bg2 f1R Bb2 f2 Be4+ Kg4 Qb6 d3 Kc1 Bg7 Nd2 Nh6 Ngf3 Nf5 Ng5 Bd4 Qf6 Rg1 Nf1 Nh4 Ng3 f1R Nh7 Bc5 Be5 d2+ Kb1 Rf3 Bc2 Rd3 Bd6 Rg2 Qg1 d1B Kc1 Rd2 Qgd4 Rf2 Rf1 Rg2 Rf2 h1B Rb1 h2 Rb6 Rg1 Rc6 Be4 Bb3 Rb8 a8N h1R Ba4 Rb5 Bb3 Bb7 c8N Rh2 Nc7 Ba7 Ne7 Ra5 Nb5 Bc8 Ng6 Rgg2 Ba4 Bb3 Bc7 Bd3 Rc5 Be4 Rh5 Rg1+ Nf1 Rg3 Rh6 Re3 Ng3 Red3 Qdb6 Rd5 Qe3 Rf5 Qed4 Bf7 Bc2 Bb3 Bd1
2RnK3/4p1b1/3B4/1QN3P1/1q1p2Qk/1b1Qn1nr/2P1QRpr/B1N3b1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 g4 h5 Be2 d3 Kd2 dxe2 f4 g5 fxg5 hxg4 Ke3 Kf7 Kf4 e1N Ke5 a5 h4 d5 b4 d4 h5 a4 f6 a3 b6 g3 b7 g2 h6 Kg6 f7 a2 h7 Ra6 b5 Ra8 b6 Be6 Qg4 Nh6 Bb2 Qd7 Ne2 Qc8 Nbc3 Nf5 Na4 Qc3 Rf1 Bb3 Nc1 Ne3 Rf2 Qb4 Nc5 Ra3 Rb1 Bh6 f8Q a1B Qff3 Bf8 Qe2 Nc6+ Kf4 Nf3 b8Q Nh2 b7 Nd8 Ke5 Nhf1 Bc3 Rg8 h8Q Bb2 Qhh3 Rh8 Qhf3 Rh2 Qfe4+ Nf5 Q4d3 Ng3 Ra1 Ba4 Kd5 Bg7 Qbe5 Rb3 b8B Ba3 Bd6 Bb2 Na2 Bc1 Rb1 Bd2 Nc1 Be3 Ba1 Ra3 Qb5 Rd3 Qee4 Rb3 Q4d3 Rc3 Rf4 Bg1 Rf2 Bb3+ Qdc4 Ne6 Kc6 Nd8+ Kd7 Rf3 Ke8 Ne3 Qgd7 Kh5 Qcd3 Kh4 Rb2 Ne4 Ra2 Rfh3 Ra8 Ng3 Rc8 Bh8 Qe6 Bg7 Q6g4+
qkb3nK/2Bn2Q1/2nBpQr1/Rp5P/1R3RN1/2P1p2r/N1n1R3/3n4 b - - 0 1 legal: proof: g4 a5 d4 c5 b4 cxd4 e3 h5 gxh5 axb4 Qe2 d3 Qd2 Qc7 Qd1 Qd8 Ne2 f5 Ba3 d5 Ng1 d2+ Ke2 d4 Bc1 e6 Bg2 d3+ Kf1 Bc5 Be4 Bd4 exd4 fxe4 Kg2 Kd7 Kg3 Kc7 Kf4 g5+ Ke5 b5 f4 b3 h4 g4 a4 g3 f5 b2 a5 g2 h6 e3 d5 Ne7 Kf6 Ng6+ Kg7 Ba6 h5 Ne5 f6 Qe8 d6+ Kc8 d7+ Kb7 d8B Ra7 f7 Ng4 f8R Ne5 h7 Ng6 Nh3 g1N Qg4 d1Q Bb6 d2 Rh2 Ne2 Rf4 Nd7 Raa4 Kb8 Nc3 b1N Ba3 Nd4 Na2 Qc1 Nf2 d1N Rb4 Bc8 a6 Rf8 h8Q Nc6 Qf5 Nge7 Ng4 Rb7 Qf6 Ng8 Re2 Qd8 Qhh6 Qc7 c3 Qc2 Rf1 Qa4 Kh8 Rf7 Qfg7 Rf3 Qhf6 Rh3 Rff4 Ra7 Rbc4 Ra8 Bd6 Na3 Rb4 Nc2 a7+ Kb7 Qd8 Rb8 a8R Qa3 Ra6 Ra8 Rb3 Kb8 Qdf6 Ra7 Raa4 Rb7 Rab4 Qa8 Ra3 Ra7 Rbb3 Ra4 Rb2 Re4 Ra5 Re5 Rb1 Rg5 Rbb4 Rg6 Bbxc7+
2Nb1Rrq/2n1B3/r2b3b/1nP1r1B1/1n1P2QR/2k1NK2/q1R1R2Q/3q1n2 b - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 c3 gxh4 Qb3 c4 d3 cxd3 Kd1 d2 Kc2 Bb7 Qc4 Ba6 Qb3 Bc8 Kd1 d5 Ra6 d4 Ra1 Bd7 Kc2 d1N Kd3 Be6 Ke4 d3 Kf4 d2 Kf3 Bf5 Rh3 f6 Rh1 Bd3 exd3 f5 Be2 Ne3 Bd1 Ng4 Ke2 Qb6 Kf1 Qd8 Bf3 Ne3+ Ke2 Nd1 Be4 fxe4 Kf1 Qd5 Na3 Qd7 Nb1 Qd8 Ke2 Kd7 f4 Kd6 g4 Kc5 c4 Kd4 f5 h5 f6 a5 g5 e5 b6 a4 g6 h3 g7 a3 c5 h4 f7 a2 b7 h2 Nh3 e3 Kf3 e4+ Kg2 e2 Na3 e1B Nc4 e3 Nf2 h3+ Kf3 e2 Kg3 Na6 b8Q Nc3 Q8b7 Nc7 Qd1 Nf6 g8R Qd5 b4 Ra6 b5 Qe6 b6 N3b5 Kf4 Kc3 Rg2 Rg8 Ng4 Bh4 Nd6 e1R d4 Re5 Qa8 Be7 Re1 h1Q f8B h2 Nc8 Qd5 Rb1 a1B Rb2 Qe6 Re4 Qa2 Qg1 d1N Rge2 Ne3 Qg3 Qd1 Rbc2+ Kb4 Qc6 h1Q Qe6 Bc3 Qd7 Qh3 Kf3 Nf1 Bf4 Bd2 b7 Bd6 Be3 Ncd5 Beh6 Bf4 Ne3 Ne8 Qf5 Bhe7 Qh5 Qh4 Qh2 Bd8 Qg6 Qf6 Qf5 Bg5 Rh4 Qh8 Qg4 Kb3 Qgh3 Nb4 Qg4 Bgf6 Bg5 Bg7 Nb6 Bh6 b8R Nec7 Rc8 B8e7 Re8 Bd8 Nc8 Qg7 Bfe7 Qh8 Rb2+ Kc3 Rf8 Ra5 Rd2 Ra6 Rc2+
q1k4N/q5br/2N1QPB1/6QN/r1R1b3/3Rnq1b/2bKNbnP/1q1B4 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 c4 e5 b4 a5 g7 d5 b6 Kd7 f6 f3 b7 g4 b5 g3 c5 e4 b6 g2 Be2 e3 Bc4 a4 Bb5+ Nc6 b8Q a3 b7 a2 Nc3 e2 Kd2 e1Q+ Kc2 f2 Bf1 d3+ Kc1 d2+ Kc2 d4 Ba6 f1B Bb5 Nh6 g8B Ng4 Qc1 Bg7 Be2 Na5 Nd5 Rh7 Bd1 Nc4 Ne2 g1B Bf7 Bg2 Bg6 Bf2 Ndf4 Ra4 Nh5 d3+ Kc3 Qf8 Qe5 Nce3 b8N+ Kd8 c6 Be4 Rg1 Ng2 Qe6 N4e3 Rf1 Bd7 c7+ Kc8 Nc6 Qh8 Rb1 a1Q+ Rb2 Qa2 Rb4 Qb1 Rh1 Qg1 Rc4 Qe8 Bc2 d1B Kd2 Kb7 Bb3 Qa8 c8N Bc2 Nd6+ Kc7 Nf7 Kc8 Qe7 Bh3 Nh8 Qa1 Qd6 Qd4 Qd5 Qda7 Qg5 Qf1 Qa1 Qg1 Qae5 Qb1 Qe6+ Kb7 Kc3 d2 Rf1 d1Q Rh1 Qd7 Rd1 Qd5 Rd3 Qf5 Kd2 Qf3 Rdc3 Bcd3 Bd1 Bc2 Rd3 Kc7 Qee5+ Kc8 Qe6+
5qr1/2Qn4/qP1b3P/4r3/bBRQnbn1/r1NN4/1nBbN2N/k3R2K b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 d5 c4 e5 cxd5 b5 axb5 axb4 Bg2 exf4 Bh3 Ra7 Bf1 Ra8 Kf2 Ke7 Kg2 Kd6 h4 Ke5 e4 Kd4 e5 g5 d3 c5 e6 f5 d6 b3 e7 c4 e8Q f3+ Kh2 f2 b6 c3 h5 f4 d7 b2 h6 f3 Ra6 g3+ Kh3 c2 Qd2 g2 Kh2 g4 Qe7 g3+ Kh3 Nf6 Ra7 Rg8 Qee2 Ng4 Rb7 Ra3 Qe6 Qe7 d8N Bd7 Qee1 Ba4 Rc7 Qd6 Be2 f1Q Nb7 f2 Bd1 Qe2 Nc5 f1N Qf2+ Nfe3 Qf7 Nc4 Qb4 Be7 Bd2 c1B Bc2 Qf4 Qh7 Qf8 Be1 Bf4 Nf3+ Kd5 d4 g1R Bc3 g2 Nh2 Re1 Rc6 g1B Rc7 Qd3+ Kg2 Re5 Rc8 Bge3 Re1 Rf5 Kh1 Bd2 Qg7 Re5 Rc6 Qh7 Nd3 Bc5 Qa7 Qb7 Rc7 Be7 Rc6 Qa6 Qc7 Bde3 Bd2 Ke4 d5 Kd4 Qb5 Bc5 d6 Bb4 d7 Bd6 d8N Nd7 Ba5 Bd2 Qb4 Rg7 Nc3 Rg8 Na2 b1N Qb2+ Nc3 Ne6+ Kd5 Nd4 Ne4 Qc3 Nb2 Ne2 Bg3 Nc5 Bgf4 Qe3 Kc4 Bb4 Qf7 Nac3 Qf5 Bb1 Qf8 Nd3+ Kb3 Qd4 Nef6 Nd5 Ne4 Bc2+ Ka2 Rc5 Qfa8 Rc4 Qf8 Ndc1+ Ka1 Ndc3 Bde3 Nd3+ Bc1 Bb1 Bcd2 Bc2+
1rRQn2K/n3R1Nn/Q3Q3/1N6/QnqbP1rr/3n1Bk1/2b1nP2/1r3B2 b - - 0 1 illegal: Other
b2r4/1r1NrR1Q/qNBq4/1q1qn1bP/5R1r/P1R2Q1B/1b2RK2/4r2k b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Nh3 f5 Ba3 h6 Bb2 f4 Ng1 Nc6 Bf6 Nce7 Bg5 Nf5 gxf5 hxg5 h4 Kf7 e4 Kf6 d4 b5 a3 c5 d6 c4 d7 f2+ Ke2 b3 d5 Ke5 f6 g4 f7 g5 d6 f3+ Ke3 b2 Rh3 c3 Qd3 c2 Qb3 c1B+ Nd2 b1R Ra2 b4 Bc4 f1R Bb5 f2 Rc2 g3 Rc3 g2 Ba6 g4 Ke2 Kf4 e5 g3 e6 Bb7 e7 Nf6 e8B Ng4 Rc6 Bb2 Rh1 Bh6 Ngf3 g1R Rc5 g2 f8R+ Kg3 Rc1 Ne5 Rh2 Bg5 Rf4 Qa5 d8R Qd5 Qc3 b3 Rd7 Rd8 Nc4 Ba8 Nb6 Rd1 Rdf7 f1Q+ Ke3 Re1+ Be2 Rh7 h5 Rh1 Bc6 g1Q+ Rf2 Kh3 d7 Qg3 Qc2 Rg7 Qh7 Qh2 Rc3 Kg3 Rf8 Re7 Rf7 Kh3 Nd4 Kg3 Ne6 Kh3 Nf8 Kg3 Rf3+ Kg2 Rf2+ Kg1 Qe4 Qg3+ Qf3 Rh4 Rh2 Rb8 Rg2+ Kh1 d8Q Rbd1 Qd6 Rbb7 Qg6 Qd8 Ne6 Nd7 Qf5 Ba1 Qe4 b2 Nf8 b1Q Rf2+ Qgg2 Qg3 Ne5 Qh7 Qc7 Qg4 Rd8 Nfd7 Qd5 Rg2 Qcd6 Qf3 Rc1 Bd3 Qbb3 Bb1 Bb2 Bf5 Qa6 Bh3 Qbb5 Rh2+ Kg1 Re2 Re1 Qg4+ Kh1 Kf2 Qe4 Qg3 Qed5 Qf3+
4B3/1Pn2rb1/1b3B1B/Q5R1/1K1nr2k/1PQ2NN1/1n1R1B2/2nbrrrr b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 g4 b5 axb5 hxg4 f5 Qa5+ c3 Qb4 cxb4 e6 b3 exf5 Qc2 f4 Qd2 Bd6 Qd1 Bf8 Kd2 Ke7 h4 Kf6 e4 d5 b6 a5 h5 Kg5 h6 f5 b7 g3 b5 d3 Kc3 g2 h7 d2 e5 a4 b6 d4+ Kc4 a3 e6 f3 e7 f2 e8Q f4 Kb5 d3 Qde2 d1N Q2e3 d2 Qd4 f3 Qdd8+ Ne7 Nh3+ Kh4 Qg6 g1R Qdd6 a2 Qc7 Nbc6 b8B Ra4 b7 Nc3+ Kc5 d1N Be3 Nb2 Qf7 g5 Qb6 g4 Qf5 g3 Qc2 g2 Bh6 Ne2 Qa5 Bg4 Rh2 Bg7 Nd2 Re4 Qcc3 Nd5 Ba7 Nc1 Bb5 Nd4 Be8 Nc7 Kb4 f1R Bc5 Rfe1 Nf1 f2 Ng3 Rf8 h8B f1R Bb6 Bd1 Ng5+ Kg4 Nf3 Rf7 Rb1 a1R Rh5 Rh1 Rg5+ Kh3 Ba7 g1B Bc5 Bf8 Bf6 Bg7 Nh2 Kh4 Ba7 Na4 Rb2 Be3 Rd2 Nb2 Qc2 Nf3+ Qc4 Bb6 Qd4 Rhg1 Qc4 Nd4 Qc3 Rb1 Nf3+ Kh3 Qe5 Rh1 Qe3 Rfg1 Qd5 Ref1 Qd7+ Nde6+ Ka3 Ncd3 Bd4 Bc5+ Ka2 Bc2 Qd5 Rbe1 Bf6 Bd1 Qe5 Bd4 Ka3 Nc1 Qc3 Be3 Qea5 Bf2 Bad4 Be3 Bde5 Bb6 Bf4 Nd4 Be3 Rg4 Kb4 Re4 Rb5 Kg4 Bf2 Kh3 Rh5+ Kg4 Rg5+ Kh3 Nh2 Kh4 Nf3+
4K2n/2BN1B2/3P2nq/nk1q3q/b2q1RB1/2n1Pb1N/1B2bq2/bQRQ4 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 c5 exf4 c6 f3 Qa4 dxc6 Qc2 c5 Qd1 c4 h3 h5 Nc3 b5 Nb1 g5 Qc2 f4 Qa4 Rh7 Qd1 Rf7 h4 Rf5 gxf5 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Kd7 Na3 Ke7 Nb1 Ke8 Kf2 Kd7 a4 Kc6 d4 c3 g6 h4 g7 h3 a5 c2 a6 g3+ Ke1 g2 Kd2 f2 Kd3 h2 Ke4 b3 Ke5 b2 a7 f3 a8B+ Bb7 Ke6 b4 Kf7 b3 d5+ Kb5 f6 c5 Nd2 b1N Ra4 b2 Rd4 c4 Ne4 c3 Bg5 c1Q Ra4 c2 Be3 Nd7 Bg5 Ne5+ Ke6 Nc3 f7 b1B Ra6 Nh6 g8Q Bg7 f8B Ng6 Bf6 Nf7 Nh3 g1Q Nc5 Qh6 Qh8 c1N Qh7 Nfh8 Nd7 Bc2 Ra4 Nb3 Bd6 Na5 Rf4 Ba4 Bc7 Qgg5 Bg2 f1B e3 f2 Bf3 Be2 Bg4 f1Q d6 Qf2 Be5 Bbf3 Bd5 Qgh5 Rf1 h1Q Bd4 Nb1 Bb2 Nc3 Rg1 Qdg5 Bb3 Qc5 Ba2 Nh4+ Ke7 Qd4 Qhb1 N4g6+ Ke8 Bf6 Bf7 Qhd5 Ng5 Q1h5 Nh3 Qb4 Qd2 Na2 Bc1 Ba1 Bb2 Qbd4 Rc1 Nc3 Qd1
1K4R1/2PrrnN1/3N2b1/1RBPp3/4BNkQ/3q1n1b/4qQbn/r2N2q1 b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 Ne2 f5 Ng1 fxe4 b4 c5 Ba3 c4 Bb2 Bg7 Bc1 Bd4 c3 Bc5 bxc5 d4 Ra2 dxc3 Ra5 Kf7 Ra1 Ke8 Ke2 Kd7 Ke3 Ke6 Kf4 h5 d4 a5 g4 h3 c6 h2 f3 c2 b6 c3 b7 h4 g5 h3 g6 e3 g7 e2 Ba3 c1Q+ Qd2 e1N Bg2 a4 Bc5 a3 Ne2 c2 Nbc3 a2 Nd1 Nh6 g8N Nf7 Nh6 Nd7 b8Q Re8 Rb1 a1R Qb4 Nf6 Rg1 h1B Nf5 h2 Nd6 Ng4 c7 R8a4 Ke4 Qb2 f4 c1Q f5+ Kf6 Kd5 e5 Kc6 Re7 Be4 Bg2 Nf4 Kg5 f6 h1B Qc2 Nf3 Qf2 Qe2 Qc4 Bh3 Rb5 Bf5 Kb7 Bg6 Rg2 Qd7 Kb8 Ra6 Rg1 B1g2 d5 Qf5 Qa4 Ngh2 Qb4 Kg4 Qbe1 Nh6 f7 Qb1 f8N Nf7 N8e6 Qbd3 Qd4 Qg5 Ng7 Rc6 Qef2 Rb6+ Nb7 Rd6 Qa4 Rdd7 Nd6 Ne1 Qad4 Nef3 Qc3 Qh4 Ngf5 Kg5 Qe3 Bh5 Ng3 Bf1 Qe1 Qg4 Ngf5 Qgg2 Nd4 Qg3 Nde6+ Kh4 Rg2 Qgf2 Rg8 Bfg2 Qd4 Bg6 Ng7 Kg5 Qe3 Qg1 Qg3+ Bg4 Qh3 B4f5 Qh8 Bfh3 Qf2 Kg4 Qhh4+
n3Bq1N/2r1qqrQ/2pb2Rq/6Q1/3Nk2q/1P6/PR1N1bK1/B1bn2N1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 Ba3 axb4 Bc1 b3 Na3 b2 Nf3 b1Q Bc4 d5 Ba6 b5 Qe2 b4 Ng1 b3 Qe6 b2 Bf1 Ba6 Qe4 Bc4 Qd4 Bb3 Qc4 dxc4 cxb3 Ra7 Rh2 Ra5 Rh1 Ra8 d4 Kd7 f4 Kc6 Kf2 Kd5 g4 h5 g5 e5 f6 c3 g6 c2 f7 c6 f5 h3 f6 h2 g7 e4 Bb5 h4 Be2 h3 Bd1 e3+ Kg3 e2 Nb5 e1B+ Kf3 Rh7 Nd6 Qe7 Ne4 Bf2 Nd2 Nh6 g8Q Rg7 Qh7 Ng4 Be2 Ra3 Bd3 Ra8 Bg6 Ra7 Bh5 Nd7 Bg6 Kd6 d5 Ke5 d6 Nb6 d7 Na8 d8Q Ne3 Qa5+ Kd4 Qg5 Rc7 Bh5 Nd1 Bg6 Qe5 Bh5 Bb4 f8N Bd6 f7 Qe7 Ng6 Kd3 f8N Kd4 Nf1 Kd3 Bd2 c1B Bc3 Qc2 Be5 b1Q Nd2 Qc4 Ne6 Qbc2 Nd4 Qcf7+ Bf6 Qc5 Rb1 Qef8 Rb2 Qe5 Nge2 Qee7 Rg1 h1Q+ Rg2 Qe1 Ng1 h2 Rg4 Q1e3+ Kg2 Qf4 Be5 Ke3 Nh8 h1Q+ Kf1 Qh4 Kg2 Qc4 Be8 Qcf7 Qf6 Qfh6 Rg6 Kd3 Qg5 Q8g8 Nc2 Qd4 Rb1 Qdh4 Ba1 Qff8 Nd4 Qgf7 Qd5 Ke3 Rb2 Kd3 Qh5 Ke3 Qg5+ Kd3 Nc4 Ke4 Nd2+
N1q4R/3Rrqk1/4q2r/2n1q1bR/nb2B1Q1/3BpQ1n/5PP1/2KRbN2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 h4 g5 h5 Bb7 d5 c6 Bf4 cxd5 Bg3 d4 axb5 Bd5 Bh4 gxh4 Bd3 Bf7 Bf1 Bg6 hxg6 Qc7 Ra6 Qb6 Ra1 Qd8 Kd2 e5 b4 a5 c4 h5 g7 Kf7 b6 d5 c5 d3 c6 a4 b5 h3 b7 e3+ Kc1 e2 b6 e1B c7 e4 c8Q h2 Qd7+ Ne7 g8B+ Kg7 Ra2 e3 Nf3 d2+ Kb2 h4 Bb5 d4 Qb3 d1Q Qc7 d3 Nd4 a3+ Ka1 h3 Qa4 d2 Qc6 Ng6 Bd3 Bb4 Qe4 Qh5 Bgc4 d1N Qa6 Ra7 Bg8 Qc8 Nb5 Nf4 Nd2 Qf7 Kb1 Nc3+ Kc1 Na4+ Nc7 Nd7 b8R Ndc5 b7 Rh6 Ra1 a2 Bh7 Qce6 Rb1 a1B Rh8 Bf6 b8R Bg5 Na8 Re7 Rb7 Qe5 Rd7 Qfe6 Rf1 h1Q Qc8 h2 Qf3 Nh3 Bhe4 Qg1 Rb3 h1Q Rc3 Qgh2 Rg1 Qf7 Nf1 Qee6 Ra3 Qhe5 Ra1 Qhh2 Rh1 Qb8 Rb1 Qhe5 Ra1 Nf4 Rh5 Nh3 Rb1 Na6 Qc4 N6c5 Ra1 Qc6 Qe6 Qbc8 Qeg4 Q6a6 Kc2 Qac6 Rd1 Qce6 Kc1
2Q2R1r/2B5/2N3P1/1PqRQ1K1/p3Nnn1/1k3r2/2r1Nq1b/2nrBbbN b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 d5 h4 gxh4 cxd5 exf4 e3 f3 Be2 fxe2 Kf2 Qe7 Qe1 Qd6 Qd1 Qd8 Kf3 Ke7 Kf4 Kd6 g4 Kc5 b4+ Kc4 d4 e1B d6 h5 d5 f5 d7 a5 e4 c5 b6 h3 d6 h4 b5 h2 e5 a4 e6 h3 e7 Na6 e8Q Qh4 d8N Nc7 d7 Nh6 b7 Bf2 b8N Bd6+ Qe5 Nd5+ Kf3 f4 g5 Ng4 Qf1+ Kb3 g6 c4 Ne6 c3 d8B c2 Bd2 c1N Ke4 f3 Kf5 Nf4 Ne2 Bg1 Be1 f2 Nc6 Ra6 Qg2 f1R Ng3 Rf3 Nc3 Ra7 Nce2 Rc7 Qf1 Bb7 Ng5 Rc8 Nh5 Qf2 Ne4 Bc7 Kg5 Bb8 Nb4 Rc2 Nhg3 Bd5 Qg2 Bc4 Nc6 Bd6 Bc7 Qc5 N2c3 Bf1 Qd2 Bd4 Rg1 h1Q Nce2 Qh2 Nh1 Qf2 Qa5 h2 Qa8 Be3 Qc8 Bd4 Nhg3 h1R Rg2 R1h7 Nh1 Rd7 Rh2 Rdd8 Rh7 Be3 Rf7 Bd4 Rf8 Be3 Bb6 Bc7 Ra2 Rd1 Bba5 Bb8 Bc7 Rc3 Qe8 Qg2 Qf5 Bg1 Bd6 Nfd3 Qc8 Qgf2 Rd2 Rc2 Be5 Nb4 Rd5 Nbd3 Ba1 Bg3 Be5 Nf4 Bc7 B3h2 Qe5
rbq2Bn1/1q2Nr2/5PKn/R3Rp1Q/qbb2N2/3kP1N1/r2b2N1/4QB2 b - - 0 1 legal: proof: c4 b5 h4 g5 f4 d5 cxd5 f5 a4 gxh4 axb5 e6 g4 Bc5 Qc2 fxg4 f5 Be7 f6 Bf8 Qf5 exf5 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 b4 a5 b6 c5 b5 h5 d6 g3 d3 h3 d7 a4 b7 a3 b6 h4 Ra2 c4 Nd2 g2 Kg6 c3 Rh2 c2 Ne4 Rh7 Bh6 c1B Ng3 Nc6 b8Q Bd2 b7 Bfb4 Bf8 Nh6 e3+ Kc3 d4 Rf7 N1e2+ Kd3 d5 g1B d6 Qe8 d8Q Be6 d7 Bc4 Ra1 a2 Qa5 Qc8 d8N Bf2 Rh1 h2 Ne6 h3 Rd1 a1Q N6f4+ Kc2 Ng2 Qa4 Qf4 Kd3 b8N Be1 Rg1 h1Q Qf3 h2 Qh5 Bd6 Rb1 Bc7 Rb5 Ne7+ Kg5 Bd6 Nc6 Neg8 Ne7 Bb8 Kg6 Bb4 Re5 Bed2 Nh4 Qhb7 Ng2 Qc2 Qa1 h1R Qe1 Rh4 Rh1 Qa4 Rh2 Rf4 Rh4 Rd4 Ra5 Rd6 Re4 Rda6 Ree5 Qac6 Rab5 Ra2 Ra5 Qa4 Nef4+
b1KN2B1/2N5/1QP1rb1r/br2nq2/4b3/1R1n2Pn/2q1pB1B/RQ1kB3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 f4 Kf6 b4 Kf5 c4 d5 b6 e5 b7 a5 b5 h5 g3 d3 Kc3 h3 b6 d4+ Kb3 e3 Ka4 Ke4 Kb5 e2 c5 e1N c6 d2 f5 Ke3 f6 e4 f7 d3 Qa4 h4 Ra2 h2 Rc2 h3 Nc3 Nd7 b8Q Qf6 b7 Qf5+ Qe5 Rh6 b8B Ne7 Na2 Bb7 Ba3 d1Q Nc1 d2 Qb3+ Nd3 Rc3 a4 Bb4 a3 Na2 Ng6 Qed5 Nde5 Kb6 Nf4 Kc7 Qb1 Ne2 d1Q Nd4 Kd2 Ba7 e3 Ne6 Qdc2 Nd8 Rb8 Qc5 Rf6 Qb6 Re6 Qd5 Ke1 Rb3+ Kd1 Be1 Ba8 Nb4 a2 Na6 Bb4 f8B a1B Bc5 Ba5 Qg2 Rb7+ Kc8 Bb2 Rg1 h1R Nc7 h2 Qf2 Nh3 Bg2 Ng6 Bd5 Bf6 Rf1 Nge5 Rg1 Qc3 Qa2 e2 Bcf2 Qcc2 Rf1 Rg1 Bc4 h1B Bd5 Bf3 Bc4 Rh1 Bg1 Be4 Bh2 Qg5 Rg1 Re7 Bg8 Re6 Qb5 Qf5 Baf2 Rb6 Qa6 Rb4 Qb6 Rb5 Qa6 Qbb2 Qb6 Nhf4 Rf1 Qbc1 Bhg1 Rh6 Bh2 Nh3 Rh1 Q1b2 Rg1 Kc1 Rf1 Qc4 Bb4+ Kc2 Ra1 Qc5 Qa3 Qb1 Qa2+ Kd1 Bbe1 Qc2 Qxb1+
n3rbR1/8/P3prBb/P1q1Nn2/k2B4/1b1R2q1/n3KRN1/QnR3rQ b - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 h4 g5 b4 gxh4 bxa5 d5 cxd5 c5 Ba3 cxd4 Bb2 Kf7 Bc1 Ke8 g4 Kd7 f4 h5 a4 b5 d6 Kc6 a6 b4 f5 e3 d7 b3 g5 e2 f6 b2 f7 d3 a5 Kb5 g6 h3 g7 h4 Bf4 d2+ Kf2 h2 Nh3 Nh6 g8Q Qc7 d8R Nf5 Ra3 Qc5+ Rd4 Be6 Qg5 Bb3 Ra4 e6 Bg2 e1B+ Ke2 Rh6 Bg3 Nd7 Qf4 Re8 Rd3 Rf6 Be4 Nb6 Qh6 Na8 Nf4 h3 Ra2 Kb4 Na3 b1N Qh5 Ka4 Ng2 Bf2 Bc7 Be3 Bb6 Beh6 Qc1 d1N Nc4+ Qa3 Re1 h1R Bd4 h2 Ne5 Rg1 Qb2 h1Q Qa1 Qh3 Qh4 Bb4 f8R Qg3 Rg8 Bbf8 Rc2 Kb5 Qh1 Qc5 Rf1 Kb4 Rc1 Kb5 Re3 Kb4 Rf2 Ndc3+ Kd3 Na2 Ke2 Ka4 Rd3 Ng7 Bh7 Nf5 Bg6
1qR1N3/2n3PP/rr4Qb/q7/q3nNNk/1b1p2Q1/BKB2rR1/5Nbq b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Be3 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 Kd2 a5 Kc1 d5 c4 e5 b4 Ke7 h4 Kf6 b6 d3 b7 d2+ Kb2 a4 b5 e4 b6 e3 g7 e2 c5 e1Q c6 d4 h5 f3 h6 f2 c7 g4 h7 Kg5 f6 g3 f7 g2 Bd3 f1R Rh2 Na6 b8Q Nf6 b7 Rf2 Qc2 d1Q Nh3+ Kh4 Nd2 g1B Rc1 Be7 f8N Be6 c8B Ne4 Nf1 Bb3 Be6 Bg5 Nd7 Bh6 Ne5 Nc7 Ng4 Qa5 Rg2 Ra6 Nf4 Rf8 Bec4 Rff6 Bg8 Rfb6 Be6 Rf3 Qc6 Qd6 Bc2 d3 Bd5 Qf8 Qg6 Rf2 Be6 Na8 Qd6 Nc7 b8N Qg8 Nd7 Qb8 Ndf6 a3+ Ka1 a2 Ne8 Qa4 Kb2 Qd2 Bc4 Qda5 Nd5 Ne6 Nd2 Bh2 Bb1 Bc2+ Bb3 Bd1 Rc8 Nc7 Qf4 Bc2 Qe3 Bd1 Nf4 a1Q+ Kc1 Bc2 Ba2 Bb3 Qf3 Q1d4 Bc2 Qe3 Kb2 Qe1 Qe3 Qh1 Nf1 Bg1 Qg3+
nb2QB1b/2R2bNr/1qN4b/1Pr2N2/1knBK2R/p2Q3P/3b2N1/2n3b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 d4 Kd7 Kd2 Kd6 Ke3 g5 b4 a5 h3 c5 b6 f5 b7 g4 b5 c4 Bb2 a4 Ra3 c3 Rh2 c2 Rh1 c1B+ Nd2 f4+ Kd3 f3 e4 f2 Qe2 f1N Rb3 a3 Qd1 Ne3 Nf1 Nc4 Nf3 g1B Ne3 g2 Rb4 g3 Ne1 Nc6 b8N N6a5 Nc6 Bh6 Bc3 Nf6 e5+ Kc7 d6+ Kb6 e6 Bh2 d5 Kc5 e7 g1B e8Q g2 d7 Rh7 d6 Bd2 Qf3 Nb3 Nf5 Qb6 d8B Be6 d7 Nd5 Ke4 Nc1 Qd3 Bd4 Be7+ Bd6 d8N g1B Bf8 Bh8 Rh2 Rc8 Ng2 Bf7 Bf6 Nc7 Bc3 Qb8 Bf6 Na8 Ne6+ Kb6 Neg7 Kc5 Ra4 Qb6 Rh1 Bh2 Rf1 Bg1 Rf4 Rc7 Ra7 Rc8 Re7 Bb8 Rh4 Rc7 Ncd4 Kb4 Nc6+ Ka4 Bd4 Rc8 Na7 Rc5 Rc7 Kb4 Nc6+
Qnr1Rb1Q/qp4PK/b1n1P1Q1/2r3r1/1Q2Nrr1/8/2RnNB1k/3n1B2 b - - 0 1 legal: proof: c4 e5 b4 d5 cxd5 a5 Bb2 axb4 Ba3 Bc5 Bc1 Bf8 h4 g5 f4 exf4 a3 bxa3 hxg5 Ke7 Rh6 Kd7 Rh1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd3 Ke5 e4 c5 g4 h5 g6 a2 g5 c4+ Ke2 c3 Kd3 c2 d6 f3 g7 Kf4 d7 Kg3 e5 h4 g6 h3 e6 f4 Ke4 h2 Kf5 f2 d4 f3 d5 Ne7+ Kg5 Rh4 g8Q Qa5 d8Q Rg4+ Kf6 Qa7 d6 Bd7 Be3 c1R Qe1 Rc5 Nd2 Nec6 Rc1 a1R Rc2 Raa5 g7 Rcg5 Qe8 Rac5 Qg6 Be8 Qh8 Bd7 Bb5 Be8 Qb1 f1R d7 f2 d8Q Bd7 Qb4 Be8 Qgh5 Bg6 Be2 Bd3 Qg6 Ba6 Kf7 Kg2 Kg8 Kg3 Kh7 Kg2 Ngf3 Kg3 Nd4 Kh3 Rg1 h1N Ne4 Kh2 Qc8 Rf4 Rg3 Rg1 Rf3 f1N Bf2 Nd2 Bf1 R1g2 Ne2 R2g4 Bd4 Nf2 Rd3 Nd1 Bf2 Qb6 Rd8 Qa7 Re8 Nd7 Qc7 Rd8 Qb8 Rc8 Qa8 Ndb8 Bh4 Rcf5 Be1 Rc5 Bf2
1qb5/nQB1q2r/2k1rBb1/R3Rn1q/2KpN3/2P5/2P2b2/b1qRQ1NR b - - 0 1 legal: proof: f4 b5 g4 c5 a4 e5 axb5 exf4 g5 c4 g6 f3 Bh3 c3 Bg2 fxg2 dxc3 hxg6 Qd5 g5 Qd4 g4 Qd1 g3 Kd2 g5 Kd3 a5 e4 f5 b4 d5 h4 Kd7 h5 f4 e5 g4 b6 a4 h6 f3 b5 f2 b7 f1B+ Kd4 a3 b6 a2 e6+ Kc6 e7 Bd3 e8R Ne7 h7 Ra6 Qf1 Bg6 Bb2 Nf5+ Kd3 Qe7 Ne2 g1Q Qc1 g2 Qe1 g3 Ba3 Qh2 Bd6 g1Q Bc7 g2 Nd2 Qh5 Ne4 Qgh2 Rd1 a1B Ng1 d4 Kc4 Bh6 Kd3 Be3 Kc4 Qee5 Re7 Bf2 Re6+ Qd6 Re5 Qe7 Ra5 Kd7 Re5 Nc6 b8R Na7 b7 Re6 Ra8 Kc6 b8Q Qf4 Ne2 g1Q Qb3 Qgh2 Ng1 Qc1 Qb2 Rg8 h8B Rg7 Qb8 Rh7 Bf6 Nb5 Ra5 Na7 Red5 Qhd6 Re5 Qb4+ Kd3 Qb7 Kc4 Qa8 Qb2 Qb8 Qb7+
R4kB1/3R3K/bNnQ3b/2b1n1p1/r5P1/1qP1Nr2/nq1n3Q/bN1NB3 b - - 0 1 illegal: No possible last move
4B2n/1Bn5/2b3QR/2q1P2N/1brBP1pk/4Rb1q/Q6b/K1BrnN1n b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 e5 f4 c5 fxe5 b5 axb5 cxd4 Bb2 axb4 Ba3 Rh6 Bc1 Rh8 Kd2 Ke7 h4 f5 e3 g5 b6 d5 b7 d3 h5 b3 Kc3 g3 Kb2 d2 h6 g4 h7 g2 c3 d4 Ra2 f4 Qe2 d1B Ra4 d3 Nh3 g1B Qf2 d2 Bb5 f3 Ba6 Nh6 Qe1 f2 Ra3 f1Q Rh2 Qd6 Ra2 Qc5 Na3 Nf7 Nb1 Bd7 Ka1 Bf3 Ra3 d1N Qd2 Bdc6 Qa2 Nf2 Bb5 Na6 b8Q Nc7 Nf4 Qh3 Qb6 Nh1 Nd2 Ra4 Nh5 Rc4 Nf1 Ke6 Ba4 Kf5 Bb5 Rg8 h8B Kg5 Ba4 Kh4 Bg7 Ba8 Be8 Nh8 Qg6 Be7 e4 Bc6 Bgh6 Rg7 Bhe3 Bf8 Bd4 Rd7 Re2 Bh2 Ra6 Qb5 Re3 Bb4 Bc5 Rd1 Ba7 Rcd4 c4 Qa5 c5 Rc4 Rb6 b2+ Kb1 Ba4 c6 Qd5 Ra6 Bb5 Bd4 Qc5 Qa3 Ba4 Ka2 b1N Ka1 Nd2 Qa2 Na8 c7 Bc6 c8B Nc7 Ra7 Bg2 Ra8 Nf3 Ra6 Ne1 Bb7 Bf3 Qf5 Bd5 Rh6 Bc6 Qg6
RB1k3K/Q1rp4/1b2rP2/1B2r2n/b1n1b3/Br1NP3/N2R4/bBQ2q1q b - - 0 1 legal: proof: a4 b5 b4 c5 c4 f5 g4 h5 e3 f4 axb5 e5 Ra3 f3 Rd3 e4 Qe2 fxe2 gxh5 Bb7 Rd4 cxd4 d3 exd3 Kd2 Bc8 f4 e1R h4 g5 b6 a5 f5 g4 b7 a4 b5 g3 f6 g2 c5 a3 c6 a2 b6 a1R c7 Nh6 Nf3 g1B Nc3 Rb1 Na2 Nf5 h6 Bc5 h5 Ra6 h7 Ng7 h6 Nh5 Ne5 Bh2 Ba3 Rb3 Bg2 Nc6 b8Q Ng3 b7 Na5 Bd5 Rc1 Rd1 Nh5 Be4 Rc4 Qa8 Bf4 Qa7 Qe7 Ke1 d2+ Kf2 Rab6 Kf3 R6b5 Nf7 Bb6 Kg4 Be5 Kf5 Rcc5 Kg6 Nc4 Qa8 Ra5 Qb8 Qd6 Qa7 d3 Bf5 Qd5 Be4 Ba1 Ne5 Rf8 h8R Qc6 h7 Rbb5 b8B Bb7 c8B Qd5 Bf5 Qh1 Bc7 Rc6 Rg8 Re6 Bcd6 Bc6 Ba6 Rb1 Be4 Ba4 Kh6 Rb3 Kg6 Rc5 Bb5 Rd5 Nf3 Rf5 Ne1 Rfe5 Kh6 Kf7 Rh8 Rc8 Rd8 Rc6 Ra8 Rc8 Bb8 Ke8 Kg6 Kd8 Kf7 Rc7 Kg8 Bbd4 Rb1 d1Q Rb2 d2 Bb1 Qc1 Rc2 d1B Rd2 Nf4 Kg7 Bb6 Kg8 Bf3 Kg7 Qh4 Nd3 Be4 Kg8 Qd1 h8Q Qe2 Qg7 Qh1 Qg1 Nh5 Qc1 Qef1 Kh8
3r2b1/1Bn5/BNQQ2K1/b1q2N2/Pq2bbQQ/1rR1Pq2/Rp1b4/1k4r1 b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 cxd5 h6 d6 hxg5 Bh3 g4 Bg2 Be6 Bf1 Bc8 d4 Qf6 d5 Rh5 Be3 Nd7 Bd4 exd4 e3 Nc5 f3 Ne4 fxe4 Rh8 Ba6 Qg5 Bf1 Qd8 Ke2 Kd7 Kd3 c5 a4 b5 h4 f5 h5 g5 h6 g3 h7 f4 e5 g4 Ke4 c4 Kf5 b3 Rh3 b2 Qd2 g2 Nc3 b1B+ Ne4 g3 Qb2 c3 Qa3 d3 Nd2 f3 Kg6 b4 Be2 b3 Rh6 c2 Qb2 c1B Nc4 f2 Na5 f1Q Bd1 d2+ Kh5 Qb6 Nh3 g1R Nc4 g2 Qc2 b2 Ra2 Qb4 Kg6 Rb8 Nf2 Nf6 Ng4 Ne8 Bf3 d1Q Qe4 Qd4 e6+ Kd8 e7+ Kd7 Rh5 Qdc5 Nh6 Nc7 Nf5 Bd2 Qg4 Be4 Be2 Qf3 e8B+ Kd8 Rh6 Be6 d7 Bg8 Nb6 Bg7 Ba6 Bgc3 Kg5 Rb7 Rc6 Rb8 Ng7 Ke7 d8Q+ Kf8 Qdc8 Ke7 Kh6 Rb7 d6+ Kf6 d7+ Ke5 d8Q Rb8 Nd7+ Kd5 Bb7 Kc4 Nb6+ Kb3 Qd6 Kc2 Nf5 Kb1 Kg6 Qa3 Qh2 Ba5 Qd6 Qab4 Qcd7 Be6 Bf7 Rhd8 h8Q B6d5 Be8 Bg8 Qhh4 Rh1 Qhg3 g1B Q3h4 Bh2 Bf7 Rc1 Bc4 Bf4 Bca6 Rg1 Qe8 Qcd4 Rc2 Qdc5 Qec6 Qcd4 Bc8 Qb5 Rc3 Qbc5 Nd5 Rb3 Bcb7 Qdb4 Nb6
R2Nn3/1Bq3qr/1Q6/QrrkqN2/3q2r1/3R3p/2P2Prb/B1KN1Nb1 b - - 0 1 legal: proof: e4 a5 d4 c5 g4 cxd4 b4 axb4 e5 b6 e6 Ba6 Kd2 fxe6 Ke1 e5 Bh3 e4 Bg2 Kf7 Bf1 Ke8 Qd3 g5 Qd2 Bc4 Qd1 Be6 h3 Bf5 gxf5 Nc6 h4 g4 Qd3 Ne5 Qf3 Nf7 Qd1 Ng5 hxg5 Qb8 Ne2 Qc7 Ng1 Qd8 Kd2 Kf7 a4 h5 f6 Ke6 a5 d5 f7 g3 g6 e3+ Kd3 e2 Kd2 e1R a6 d3 a7 h4 g7 g2 Na3 b3 Rh2 h3 Nb1 d4 Qe2+ Kd5 Qf3+ Re4 Rh1 e5 Ra2 b5 Qf4 b4 Qh6 b2 Qf4 b3 Ra6 Bd6 f8N Qc7 Qh4 Rg4 Be2 e4 Ra1 e3+ Kd1 d2 Rh2 Nf6 g8N Rh7 Nh6 Ne8 Nf5 Rc8 Nf3 g1B Rg2 Bdh2 Ba6 Qg7 Qf6 Rc5 Qb6 Qc7 Na3 b1R Ne6 b2 Nb5 Qg7 Ra5 Ra1 Bc8 b1R Nd8 Ra4 Rg3 Rb2 Nbd6 Rbb5 Ne4 Qc7 Bb2 Rab4 Ne1 Rg8 Rf3 Rg2 Nd3 Ra4 Ba1 Rac4 Nb2 Ra4 Ke2 d3+ Kf1 Qg7 Neg3 Rg4 Nd1 Qc7 Nc6 Qg7 a8Q Qc7 Ra2 Qg7 Qaa5 Qc7 Nd8 Qg7 Nb2 d1Q+ Qe1 d2 Ra8 Qb1 Ke2 Qc1 Kd3 e2 Nf1 d1Q+ Qd2 e1Q Bb7+ Rc6 Rg3 Qee5 Rf3 Qec7 Rg3 Qe1 Qda5 Qee5 Nd1 Qcb2 Kd2 Qb4+ Kc1 Qbd4 Ba6 Rc4 Rd3 Rcc5 Bb7+
3q1n2/1q4BP/QQ2NN1p/q1r2n2/2n3q1/P2N1Bnk/K6n/2NbbRR1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Bg4 Qd1 Bc8 g4 gxh4 g5 h6 g6 Bd7 Ba3 Be6 Bc1 Bc8 Na3 b5 Nc4 f6 Na3 Ra6 Nb1 Re6 Bh3 Re5 Bf1 Re3 Na3 Re7 Nb1 Reh7 gxh7 Qd6 Ba3 Qd7 Bc1 Qd8 d4 Kf7 Kd2 Kg6 Kc2 Kg5 Kb2 Kg4 e4+ f3 e5 c5 e6 h3 e7 h2 e8N b3 a3 f5 d6 b4 d7 f4 d5 c4 d6 Ne7 Ng7 Nf5 Qd3 f2 Ne8 f3 Bd2 c3+ Kc1 b2+ Kc2 b3+ Kd1 Kh4 Bc1 c2+ Kd2 Ba6 Bg2 f1N+ Kc3 f2 Bh3 Nd2 Qd5 f1N Qa5 Be2 Qa8 Nc4 Nf6 Bd1 Nd2 b1Q Qa6 b2 Kb3 Rg8 Bg4 Rg5 Ne2 Bg7 Nd5 Bc3 Ne4 Be1 Bf3 Kh3 Rg1 h1N Ndf6 Nhg3 Nc5 Nh2 Nd3 Qa5 d8Q Nd7 Bf4 Nf8 d7 Qc1 Bb8 Qcd2 Qdb6 c1Q+ Ka2 Qcc2 d8N Qca4 Ne6 Q4b4 Ndc5 Qd8 Be5 Qba4 Rc1 Qad7 Nd3 Qd4 Nd5 Qg4 Bg7 Rh5 Nf6 Rg5 Rc2 Rh5 Nec1 Rg5 Kb3 b1Q+ Nb2 Ncd6 Qbb7 Ne7 Rf1 Rc5 Qb8 Qa1 Nbd3 Nc4 Rg1 Q1c3+ Ka2 Nef5 Rf2 Qcb4 Rff1 Qbb6 Qd6 Qb7 Qdb6
1b5k/r1Q1K1R1/5P1N/q1Bq4/b1nR2Qb/1n2B3/P1b2n1p/1qB1Nq1B b - - 0 1 legal: proof: g4 a5 e4 b5 f4 g5 c4 f5 h4 fxe4 f5 Ra6 b4 gxh4 g5 d5 cxd5 Rf6 gxf6 axb4 Kf2 Kf7 Ke3 h5 Kd4 c5+ Ke5 b3 d4 e3 d6 h3 d5 c4 d7 h2 d6 c3 Qf3 b4 Na3 b2 Qg2 b1Q Qf3 e2 Qh3 e1Q+ Be3 b3 Nc2 b2 Ne2 h4 Na3 c2 Qg2 c1N Qg3 h3 Qg5 Qda5+ Bc5 Rh7 d8B Bd7 Qd2 Nh6 Qd4 Kg8 f7+ Kh8 f6 Nb3 Bb6 Ba4 Ke6 Ng4 d7 Nf2 d8Q Nd7 Rg1 h1Q Qg4 h2 Nc2 Ne5 Bg2 Nc4 Qc7 Qf1 Ne1 Bh6 f8B Bf4 Ng3 Rf7 Qc8 Bb8 Qc7 Rg7 Bc6 Rh7 Kd7 e5+ Ke8 e4 Bh6 e3 Nf5 e2 Bc1 Rf7 Nh6 Qd5 B5e3 Rh7 Bbc5 Rg7 Qd8 Ra7 Qc7 Ra8 Ke7 Ra7 Nc2 e1B Bb7 Bc3 Ne1 Be5 Rg2 Bg3 Ba8 Bh4 Rg3 Qdd3 Bh1 Qd5 Rg1 Qg6 Rg2 b1B Rg1 Bc2 Rb1 Na1 Rb4 Nb3 Rg2 Ne5 Rd4 Nc4 Qf3 Qh7+ Rg7 Qhd3 Qg4 Qd1 B1a3 Qb1 Bac1
1Q3KR1/1NBk1bnN/1brn3P/rq1RPQ2/8/2bpRBp1/3r4/3q1R1q b - - 0 1 legal: proof: b4 a5 g4 e5 a4 h5 f4 hxg4 d4 exf4 bxa5 b5 axb5 c5 Qd2 cxd4 Qd3 Rh4 Qd1 Rh8 Kd2 f5 Kd3 g5 Kc4 f3 Kd5 f2 e4 d3 c4 d6 h4 d2 h5 g3 b6 f4 h6 g2 b7 f3 c5 g4 c6 g3 a6 Bg7 a7 Na6 b8Q Nc5 c7 Ne6 Nc3 Kd7 Nb5 Bc3 Nh3 g1B Ng5 Ng7 Be2 f1Q Ra5 f2 Qc2 d1R+ Qd3 Rd2 Nh7 Qh4 Bf3 Qd1 e5 f1Q Ba3 Ba6 c8R Bb6 Bc5 Qfe2 Rf1 Qh1 Rf8 Bc8 Rf4 Ba6 Re4 Bc8 Re3 Ne7+ Ke4 Nef5 Kd5 Ba6 Bb4 Rc8 Bc5 Bd8 Bb6 Rc6 Bc7 Bb7 Na3 Ba6 Nc4 Bb7 Rc5 Ba6 Na5 Bc4+ Ke4 Bg8 Nb7 d5+ Kf4 d4 Rd5+ Nd6 Qf5+ Be6 Kg4 Qb5 Kf4 Ke7 Kg5 d3 Kg6 Kd7 Ba5 Bb6 Kf6 Bc5 Bc7 Ra6 Kg6 Bb6 Kf6 Kc6 Ke7 Bf7 Qd8 Ra5 Qh8 Rd8 a8R Rd7+ Kf8 Re7 Re8 Re6 Rb8 Rf6 Ke7 Rg6 Rg8 Re6+ Kf8 Kd7 Qg6 Rf6 Qf5+ Kc6 Ke7 Nc4 Ra8 Rd6 Qb8 Rf6 Qa7 Rd6 Rg8 Rg6 Qe4 Rd6 Kf8 Kd7 Rc5 Rc6 Qb8 Nd6 Rd5 Ra6 Qg6 Ra5 Qf5+
1bQ2qb1/1B2N3/1p2N1np/qk6/2PR1Rn1/Br2R2K/bP3qQ1/nr5R b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 d4 cxd4 a4 gxh4 a5 b5 axb6 axb6 g4 d5 f4 Kd7 Kf2 Kc6 Kg2 e5 f6 d3 g5 h3+ Kh2 d2 f7 e4 f5 d4 f6 d3 g6 e3 g7 e2 Nc3 e1Q Ra3 Ne7 g8Q Ng6 Ra2 Be6 Ra5 Bd6+ Re5 Nd7 f8R Ba2 f7 Nc5 Na4 Kb5 Qg4 d1N Qe6 Qf2+ Bg2 d2 Ne2 Ne3 Qc8 d1Q Ng3 Qd5 Bd2 Nb3 Nf5 Bb8 Ne7 Na1 Nc5 Ra3 Ne6 Rb3 Bb4 h6 Qg7 Rg8 Ba3 Qd6 Rd8 Q5c5 Nc6 Qf8 Rd6 Qd5 Re4 Qdd2 Ne7 Qa5 Rd4 Qf5 Kg3 h2 Bb7 Qf2+ Kh3 Ng4+ Rd3 Qe8 Re3 Qf8 Rhd1 h1B R6d4 Bd5 Rh1 Qe8 f8R Qd8 Rff4 Qf8 Qe5 Rg7 Qe4 Bc4 Nd8 Bg8 Qg2 Rf7 Ne6 Rf5 Ref3 Re5 Rg3 Re1 Re3 Rb1 c4+
k2K2nN/2Rb3b/QP1p4/1r3P1p/2B3N1/N1n1Q1r1/r3r1nN/R1r1q1B1 b - - 0 1 illegal: No possible last move, all moves rejected
bK4N1/Q2r2P1/B1b3Nk/4pPqr/R1Q1pb1n/1b3QR1/4Q1B1/2nn3r b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 fxe4 b5 b6 Ba3 Ra7 Bb4 axb4 a5 Ra6 axb6 Ra8 Ke2 Kf7 g4 Kg6 c4 d5 f4 h5 f5+ Kg7 b7 h4 b6 b3 c5 e6 c6 d3+ Ke3 h3 Kf4 b2 Ke5 d4 c7 d2 g6 d3 g5 h2 Qf3 d1N Ne2 d2 Rg1 h1R Nbc3 b1B Nd5 R8h5 Ne7 Ra6 Nf4 Bd7 Kd6 e5 c8B Nc6 b8Q Ra7 b7 Nb4 Rg3 Nd3 Ra4 Ba2 Bg2 Bd5 Qa8 Nc1 b8Q Rc7 Qaa7 Ba8 Qb5 Rb7 Qbe2 Bc6+ Ke6 Rd7 Ba6 Nf6 Ng8 Ng4 Qd4 Nge3 Qa7 Kh8 g7+ Kh7 Bh3 Ng2 Ng6 Nh4 Bg2 Qb6 Nh6 Qe3 Ng8 Re7+ Kd6 Qf4 Kc5 Rd7+ Kb6 Ba3 Qc7 Bb2 Ka7 Bd4+ Kb8 Be3 Qb6 Qg4 Qc5 Bf4 Qce3 Nf2 Qd4 d1B Qa7 Bb3 Nh8 Rg1 Ne7 Bb5 g6+ Kh6 g8Q Bbc6 g7 Rh1 Nhg6 Qg5 Qgc4 Nd1 Ng8+
2n3Bn/1krP1N1r/1Q1rn1bN/8/p1qbb1R1/K1p1BQ1P/RQ1Q4/2n5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 b4 Kd7 d4 c5 Kd2 Kc7 Kc3 g5 Kb2 f5 e4 a5 e5 c3+ Ka2 c4 e6 c2 d5 a4 h3 f3 b6+ Kb7 b5 f2 d6 c3 d7 g3 e7 g2 e8Q g4 Nd2 g3 Qf3+ Nc6 Qee2 f4 Rb1 Nh6 Qh5 f3 Qc5 Ne7 Qa3 Bg7 Nb3 Nf7 Ra1 Ra7 Qb2 Bd4 Be3 c1N+ Ka3 Rh7 Qbd2 Nh8 Ra2 Qc7 Qed3 Qc4 Be2 f1R Bd1 f2 Nf3 g1Q Ne5 g2 Nf7 Qh2 Rg1 Qhc7 Qf5 Q7c6 Qf3 Re1 Bc2 f1B Be4 Be2 Bd5 Bd3 Be6 Bg6 Bd5 Bg7 Nd4 Rd1 Nf5 Bf6 N5h6 Bd4 Rh1 g1N Rh2 Ra8 Rg2 Ra7 Rg4 Nge2 Be6 Nf4 Bd5 Kb8 b7 Kc7 Be6 Kb6 b8Q+ Bb7 Qg8 Nc8 Bd5 Kc7 b6+ Kb8 Be6 Ba8 Bd5 Rc7 b7 Qb6 Be6 Ka7 b8Q+ Ka6 Bd5 Bc6 Be6 Bce4 Bd5 Qa5 Qbb2 Qb6 Qf8 Ka7 Qfb4 Kb8 Be6 Kb7 Q4b3 Ka6 Ng5 Kb7 Bg8 Ne6 Ngf7 Bf6 Qdg2 Rd6 Qgd2 Bd4 Qxb6+
b5b1/1P3N2/1r1p3q/RRp1Q1Br/5Nnr/q3QBQ1/n1Pr4/K2kr1Q1 b - - 0 1 legal: proof: g4 e5 e4 g5 d4 b5 a4 f6 f4 gxf4 g5 Bh6 axb5 exd4 h4 f5 g6 Bg5 hxg5 fxe4 Kd2 Ke7 b4 Ke6 b6 Ke5 g7 h5 g6 a5 b5 c5 b7 d3 Kc3 a4 Kb2 Kd4 b6 d6 Be2 e3 Ra3 d2 Bf3 h4 Bh5 h3 Qe1 d1R Qg3 f3 Qf2 h2 Bg4 Be6 Qf1 f2 Be2 Qh4 Nc3 Nh6 g8Q Nc6 b8Q Ra6 g7 Nb4 Qbe8 Rd2 Qg6 Na2 Rb3 a3+ Ka1 Ng4 Rb5 Qh6 Qh3 f1R Q6e8 Rf5 Ne4 Rh5 Bf3 e2 Ng5 Ke3 Nf7 e1R Ne2 Rh7 Rg1 h1B Nf4 Kf2 Qh8 Bd5 g8Q Bb3 Bd1 Ba8 b7 Rb6 Bf3 Rh4 Qg5 Bd5 Qhe5 Rh8 Nd8 Bg8 Nf7 Nc3 Rg3 a2 Q5e6 Qh7 Bd1 Ne3 Nd5 Rdd4 Kb2 Qg7 Qeg6 R8h5 Qee5 Qh6 Rg4 Qf8 Bf3 Qh6 Bd2 Rd3 Ra4 Rdd4 Qge4 Rd3 Ra5 a1Q+ Kb3 Qa4+ Kb2 Na2 Qhh2+ Kf1 Qgg3 Ng4 Bg5 Rdd1 Nf4 Rd2 Bd1 Qa3+ Ka1 Re3 Bf3 Ree2 Qgg2+ Ke1 Qe3 Kd1 Qhg3 Qf6 Be4 Re1 Qgg1 Qh6 Bf3+
r2R1b1b/nR2Q1Rp/K4QB1/5nPB/1k1q4/1Nr2n1b/b2PRp2/1q3N2 b - - 0 1 illegal: No possible last move
Nnq4q/3Np3/b3P3/RRP1r2k/R5b1/1RB3BQ/Qp2b1Kb/n4n1r b - - 0 1 legal: proof: b4 a5 g4 h5 d4 b5 f4 c5 f5 cxd4 a4 axb4 axb5 g6 Bh3 Ra3 fxg6 Ra4 g5 Ra8 Bg4 hxg4 Kf2 f5 c4 d5 e4 d3 h4 d4 h5 b3 e5 g3+ Kg2 d2 h6 b2 b6 f4 c5 d3 h7 Bh6 b7 Ra6 g7 Kf7 Ra4 Kg6 Nc3 Nf6 Qf1 d1B Nb5 d2 Nc7 Ne4 Na8 Be2 Nf3 d1B Rh3 Re6 g8R+ Bg7 Be3 Nd2 Bf2 Nb3 Ra5 Na1 Qh1 Nd7 b8R Bca6 Rbb5 Qc8 Rd8 Nb8 Rd4 Bh6 Rda4 Bg7 Kg1 g2 Bh4 Kh5 g6 Bh6 g7 Bg5 g8Q Bf6 Nh2 f3 Ng4 f2+ Kh2 Bg7 Rhb3 f1N+ Kh3 g1Q Nf6+ Kg6 Nd7 Kh5 Qh2 Qd4 Kg2 Bh6 Qh3 Bf4 R3b4 Bh2 Rb3 Rd6 Qc4 Rd5 e6 Re5 Qd5 Bg4 Qc4 Bde2 Qd5 Rg8 h8B Qc3 Qd1 Rf8 Qb1 Rf4 B8f6 Rd4 Bg7 Rd1 Qa2 Qd4 Ndb6 Qdd8 Nd7 Qh8 Bgf6 Ng3 Bg7 Rh1 Bgf6 Nf1 Bg7 Re3 Bc3 Re5 Bg3+
1Nq2R1Q/2QRp1P1/1b1pB1kP/3N4/q2Q1r2/3q1q2/b2B1rn1/2K1Q1nn b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 h5 exf5 gxf4 g5 Nc6 Qe2 Nb8 Qg4 hxg4 Kd2 Kf7 c4 a5 b4 d3 h4 d6 h5 a4 f6 f3 b6 f2 b7 g3 h6 a3 c5 g2 g6+ Ke6 f7 Kf5 c6 a2 b5 Be6 c7 Na6 b8Q Bg7 c8Q Bd4 f8Q+ Nf6 g7 Nc5 b6 Kg6 b7 Nd5 Ne2 Ra4 Qf4 Ne3 Nbc3 Rf8 Qd7 Bc4 Nd5 Rf5 Rh3 g1N Rf3 Qg8 Bh3 f1Q Qb5 Ng2 Qa5 Qe8 Rb1 a1Q Qe5 Qd7 Qh8 Qc8 b8Q Rb4 Rf4 Qa4 Rf2 Rf7 Be6 Ba2 Rf4 Bf2 Nd4 Rc4 Nc6 Re4 Kc3 d2 Kb2 d1Q Qe1 Qdd3 Bd2 Rd4 Kc1 Ne4 Qa7 Ng3 Rb7 Nh1 Rd7 Rc4+ Qc3 Bb6 Nb8 Re4 Rf2 Re2 Rf4 Qff3 Qac7 Rf2 Qd4 Rf8 Rf5 Rf6 Rh5 Rf4 Rf5 Rh4 Rf7 Rf4 Rf8
K1n4r/3P1N1P/BR2b3/q2Q1Qr1/p1q4k/4QrqR/1pQB4/1Nbr1n2 b - - 0 1 illegal: No possible last move, all moves rejected
N2BKb1r/Q1P1n1r1/n1QR3k/b4q2/P2RQ2b/Q1b1q3/pN5p/4nB2 b - - 0 1 illegal: No possible last move, all moves rejected
R1Qb4/pr1Bq2b/1r2n2P/k4R1B/bNQPK2b/nn4qB/6p1/B2N4 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Qb3 g4 e4 h5 Qf3 gxf3 g4 Nh6 g5 Ng8 b4 Rh7 Ra3 Rh8 Re3 Be7 Re2 Bf8 Rg2 Qd7 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 h4 c5 d4 Kc7 g6 Kb6 d6 f5 d7 c4 e5 c3 g7 c2 h5 g3+ Ke1 g2 Kd2 f2 Kd3 f3 e6 f4 e7 Rh7 e8B Qe7 d8R Bf5+ Kd2 Nh6 g8B Nd7 Ne2 Nf7 h6 Ng5 Nec3 Nc5 Bh5 Rb8 Na3 Nge6 Nd1 Nb3+ Kc3 Rg7 Bb2 c1B Ba1 Bh7 Nc2 Rb7 Rh4 Rg6 Kd3 Ba3 Be2 f1Q Ke4 f2 Beg4 f3 Bh3 Bc1 Rc8 Bg5 Rf4 Bh4 Rf5 Bg7 Ra8 Bgf6 Bf7 Qg1 Be8 f1B Bc6 f2 Bd7 Qh2 Bc3 Qg3 Ba1 Kc7 b6+ Kd6 Rh8 Bb5 Ra8 Ba4 b5 f1N Nb4 Bfg5 Be8 Ne3 Bd7 Rb8 b7 Nc4 b6 Na3 Bb2 Qf7 Ba1 Bd8 Rg5 Qe7 Rf5 Rc8 b8Q+ Rc7 b7 Rf6 Qc8 Rg6 b8Q Rf6 Qb5 Rb7 Qc3 Rg6 Qcd3 Kc7 Qbc4+ Kb6 Qdc2 Rf6 Kd5 Ka5 Qc1 Ng5 Qc8 Rfb6 Q1c4 Ne6 Ke4+
n2QB1bB/8/3r1n2/r3Pb2/4n1pK/qpN2QP1/RQrQ4/R1nNr2k b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 h4 exf4 a3 bxa3 Bb2 g5 Bc1 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qf6 Ra2 Qd6 Ra1 Qd8 Kf2 Kd7 d4 Kd6 e4 h5 g6 b5 g3 f5 g7 c5 Bd2 b4 Qa4 f3 Bc3 c4 Qb3 f4 Rh3 a2 Bg2 h4 Bh1 Nd7 Qd1 b3 Qe1 Qa5 Qf1 Ngf6 g8Q Rh6 Qf7 Qa3 Nd2 Nb6 Nb1 Bf5 Bd2 c3 Bc1 c2 Qg2 Rc8 Bb2 c1N Rh2 h3 Ne2 Rc2 Nc3 Na8 Nd1 Rg6 Kg1 Rh6 Nec3 f2+ Kf1 Rg6 Qf3 Rh6 Qg7 Rg6 Rg2 h2 Qh8 Ke7 d6+ Ke6 d5+ Ke5 d7 Kd4 Rb1 a1R d8Q Ke5 d6 Rh6 Rg1 Kd4 Bg2 h1R d7 R1h5 Bh1 Rg6 Kg2 Rhg5 Re1 f1N+ Re2 Nd2 Kf2 Rh5 Bg2 Rh1 Qh2 Re1 Qdh8 Ra2 d8Q+ Ke5 Ra1 Rh6 Qfd3 f3 Ke3 f2 Qhf8 f1B Qh8 Ke6 Kf4 Rg6 Rf2 Rh6 Kg5 Ke5 Qf3 Bc4 Bf1 Bg8 Re2 Qf8 Rg2 Ra5 Bb5 Qa3 Be8 Rg6+ Kh4 Rh6+ Bh5 Rg6 Ne2+ Rc3 Qh6 Nd5 Qf1 Rf6 Be8 Rd6 Ng1 Kd4 Ne2+ Kd3 Qfh1 Rc7 Bh8 Nf6 e5 Ke4 Qg5 Kf3 Qh6 Nde4 Qg5 Rc3 Qh6 Re3 Nec3 R1e2 Q1g1 Re1 Rga2 Red3 Qc2 Rd2 Qge3+ Kg2 Qb2 Rc2 Qf3+ Kh2 Qd2+ Kg1 Qfd3 Kh1 Qf3+
N1N2K2/b4RBb/1bNpQq2/n1P2k2/n5nR/2Q5/2Pp1n2/1n1Brq1N b - - 0 1 legal: proof: b4 a5 h4 b5 f4 c5 a4 e5 d3 exf4 h5 Ra7 h6 Rc7 d4 cxd4 axb5 Rc5 bxc5 gxh6 Rh4 h5 Rh1 h4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 h3 g4 h4 e4 f3 b6 f2 b7 d3 Ne2 d2 Rh2 a4 Qe1 a3 Nd4 a2 Nc3 Be7 Rh1 h2 Rb1 a1B Na4 h3 Qd1 Nh6 Bb2 Nc6 b8Q Na5 Qb4 Re8 Be2 f1N g5+ Kg6 e5 f5 e6 f4 Rc1 Ng4 Nc6 Kf5 Bg7 Be5 g6 Bb8 Qc3 Ba7 Nb2 Ba6 Bf3 Bd3 Qe2 Bd6 e7 Bc7 Qe3 Bcb6 Kd6 Ng3 Rhf1 h1N Nd1 h2 Nf2 Ne2 Ra1 Nhg3 Nh1 Be4 Rf2 Nf1 Ra4 Bd3 Qb2 Nc3 Bd1 Be4 Rd4 Na4 Qbc3 f3 Qe2 Ng3 Qec4 Ne2 Qe6+ Kg5 Rf1 Bd3 Rf4 f2 Rf7 Bf5 Rg1 f1Q Rg3 Rf8 e8N Qf6 Nc7 Re8 Na8 Re7 Rh3 Kf4 Qa3 Nec3 Rh4 Nb1 Qc3 Kg5 Bh8 Re8 g7 Bh7 g8N Kg6 Nge7+ Kg5 Ng3 h1N Nc8 Nhf2 Nh1 Re7 Bg7 Kf4 Kd5 Kg5 Qd6 Re4 Qe6 Re1 Kd6 Qg6 Ke7 d6 Qb3 Qf6+ Kf8 Kg6 Qc3 Kg5 Qa2 Kf5 Qe6+
QRK2Q1B/1R3p1P/3N2kn/3p4/1nR2n1q/b1BnNnP1/6b1/3rqbR1 b - - 0 1 legal: proof: d4 b5 e4 c5 a4 g5 axb5 h5 f4 gxf4 e5 a5 g3 h4 Bd3 h3 Bf1 d6 Bg2 hxg2 Qe2 Ra6 Qd3 d5 Qd1 Rd6 exd6 cxd4 Kd2 e5 Kd3 a4 c4 a3 h4 a2 b4 f3 h5 f2 h6 f1N d7+ Ke7 c5 Kf6 b6 Bg7 b5 Ne7 b7 Nbc6 b8B Na5 h7 Ng8 c6 Nh6 b6 Bf8 b7 Ne3 c7 Kg6 Ne2 g1N Bb2 Nc6 Nd2 Nf3 Rg1 Qh4 d8Q Ng2 Nc3 Bh3 Rb1 a1Q c8R Be7 Nf1 Re8 Qa4 Ba3 Nb5 e4+ Ke2 e3 Kd3 e2 Bc3 Re6 Be5 Re8 b8R e1N+ Ke2 Re7 Nd6 Nd3 R1b7 Ncb4 Qa8 Qb1 Qf8 Rc7 Bd2 Rc1 Rc4 Qa1 Bg7 Qc3 Bh8 Rd1 Rd7 Nc1+ Kf2 Nf4 Rdb7 Bg2 Be1 d3 Ke3 d2+ Kf2 Ncd3+ Ke3 Qhf6 Nh2 Rc1 Ng4 d1B Bd2 Qa1 Bc3 Nfe5 Kd4 Qh4 Ne3 Be2 Rbc8 Bef1 Rcb8 Nb2 Kc5 N2d3+ Kb6 Nf3 Kc7 Rb1 Bcf6 Qc3 Kd8 Rd1 Kc8 Qe1 Bc3
1r1qN3/PQqQ3K/3bq1Rp/2k2R1B/1N1N2rN/P2qrnp1/5Bn1/2q5 b - - 0 1 legal: proof: f4 a5 d4 e5 b4 exf4 bxa5 c5 g3 cxd4 h3 fxg3 Rh2 g5 Rh1 g4 Be3 g2 Bd2 Qe7 Bc1 Qd8 Nc3 g3 Rh2 b6 Nb1 Bb7 Rh1 Bc6 Na3 Bf3 Nb1 Bg4 hxg4 Qh4 Nc3 Qe7 Nb1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 f5+ Kf4 d3 e4 h6 c4 d2 e5+ Kc5 g5 d5 e6 d4 e7 b5 e8N b4 g6 b3 a3 d3 g7 b2 a6 Nc6 a7 Nf6 g8N Ng4 Nc3 b1Q Rh4 Qa2 Nb5 Ne3 Ngf6 Nd4 Be2 Rg8 Rg4 Rb8 Rg6 Nf3 Nd4 Qb6 Qb3 d1Q Nd5 d2 Nb4 Qdc2 Qa4 d1R Qd7 Qd8 Bb2 Rd3 Rf1 Rb3 Bc3 Rg7 Be1 Qc3 Bf2 Qc1 Nh3 g1Q Bd1 Qg2 Ng1 Qh3 Be2 Qac2 Qb7 Ne1 Ke5 f4 Ngf3 N3g2 Nh4 f3 Bd1 Qhc8 Qd7 Qa2 Kf5 Qcc7 Be2 Bd6 Bd1 Re7 Kf6 Re2+ Kg7 Re4 Kh7 Rg4 Be2 Qad2 Bd1 Qe3 Be2 Qe6 Bd1 Kb6 Be2 Re3 c5+ Ka5 c6 Kb6 Bd1 Kc5 Be2 Qb7 c7 Qc6 c8Q Qcc7 Bg1 f2 Qb7 Nf3 Rd1 f1Q Bf2 Ng1 Bf3 Qd3 Rf1 Rg5 Bh5 Nf3 Bg1 Rg4 Rf2 Nfe1 Rf6 Nf3 Bf2 Qb2 Rf7 Qc1 Rf5+
n2r1N2/Q7/1pRn1q1Q/3b1Pk1/K1BrQ1p1/4PRB1/3Qqqnr/2r4N b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Be2 e3 Bc4 Nh6 Bf1 Ng8 f3 e5 Ne2 e4 Ng1 Bc5 Qe2 Bd4 Kd1 Bc5 Qe1 e2+ Kc2 e3 Qd1 e1N+ Kb3 e2 Kb2 Be3 dxe3 Rh4 Bh3 Rh6 Bf1 Rh8 Kb3 Ke7 h4 Kf6 a4 c5 h5 g5 h6 b6 f4 g3 f5 g2 h7 g4 a5 c4+ Ka4 b3 d6 b2 d7 c3 a6 c2 a7 Na6 Bd2 c1Q Nc3 b1R Rh3 Rb5 Nd5+ Kg5 Ne7 Rd5 Ng6 Bb7 Nf8 Ne7 Qc2 Nc7 Qe4 Qb2 Rf3 Nc8 Rc1 Qdf6 d8Q Nd6 Rc6 Rd4+ Bb4 Rb8 a8Q Rc8 Qd7 Rd8 Qa7 Na8 Nh3+ Kh5 Qde7 g1Q Qd7 Ng2 Nf2 e1R Bc4 Rc1 Nh1 Kg5 Be1 Qe2 Bg3 Qgf2 Ng6 Rhe8 h8Q Re7 Nf8 Rh7 Qde6 Rh2 Q6d5 Bc8 Qda5 Be6 Qd2 Bd5 Qh6+
Rnkn1q1B/6P1/nq2b1r1/4pRPN/bR1pQ3/3K2bB/1b6/Q1qNR3 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 f4 gxf4 e4 f5 h4 fxe4 g5 Ra6 d5 cxd5 h5 Rg6 hxg6 d4 Ke2 h5 b4 d5 c4 Kd7 b6 e5 b5 f3+ Kd2 a4 c5 a3 b7 f2 b6 d3 Qb3 e3+ Kc3 d4+ Kc4 e2 Qb4 e1B Ne2 h4 Qb2 d2 Ng3 d1B Kd3 a2 Nh5 h3 Nc3 Ba4 Nd1 h2 Qb1 Qf6 Ba3 Rh6 c6+ Kd8 Bh3 Ne7 Qc1 Be6 Rf1 h1Q c7+ Kd7 c8R Nec6 Bb4 Nd8 Be7 Qg1 Rb1 a1N Qc3 Nb3 Qa1 Qh1 Rc4 Qc6 Rb4 Qf4 Bf6 Qfc1 Bh8 Nc5+ Ke2 Bd6 g7 Nca6 Kd3 Q6c5 Bg2 Rg6 Bh3 Bd2 Re1 Bf4 R1b2 f1Q+ Rbe2 Qh1 Rf2 Bg3 Rf5 Qg2 Rf3 Qf2 Rf5 Nbc6 b8R Qb5+ Rc4 Ba3 b7 Qb6 Rb4 Bb2 Rc8 Qff4 b8Q Qf2 Qa8 Ncb8 Qe4 Qff4 Rc5 Qf2 Rd5+ Kc8 Rd7 Qff4 Ra7 Qf2 Ra8 Qff4 Rf8 Qf6 Rf7 Qe7 Rff1 Qf8 Rf5
4R2K/1Q2PbNQ/2rk3R/b2P4/nb1R3q/1Np2B1p/q2Bb3/qr4rR b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 h4 g5 g3 Nc6 Qb3 Nd4 Qd1 Ne6 Rh2 g4 Rh1 Ng5 hxg5 fxg3 d4 Ke7 Kd2 a5 Ke3 h5 Kf4 f5 Ke5 c5 b4 c3 e4 c4 d5 f4 g6 h4 g7 c2 b6 f3 b5 g2 b7 c3 b8R f2 b6 g3 b7 a4 Be2 f1B Rh2 a3 Rh1 a2 Bh5 h3 Ne2 g1R Nd2 g2 Nb3 Rh6 Ned4 Nf6 g8R Be2 Qd3 Be6 Bf3 Bf7 Bd2 c1Q Ne6 Qa3 Rd1 a1Q Ng7 Q3a2 Rh8 Nd7+ Kf5 Nc5 e5 Ra7 e6 Na4 Qc2 Rg6 Rh6 Kd6 Rc8 Qe7 Re8 Qh4 b8Q+ Rc7 Qa7 Rc6 Qb7 Re1 Qe4 g1B Qd3 Rg5+ Kf6 Bb6 Qh7 Ba5 Qc8 Bh5 Qb7 Rg6+ Kf7 Rgg1+ Kg8 Bf7+ Kh8 Be7 Bg5 Bf8 Rd4 Rb1 Bd2 Ke5 Rd8 Bfb4 Re8 Kd6 e7+
1Bq1n2q/p3N1N1/1r5N/1Nbk1b2/4p1n1/b1P2RQQ/Kn2R1PB/5nq1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 f5 f4 b5 axb5 g6 h4 Na6 Bc4 Rb8 Be6 fxe4 f5 Rb6 f6 Rd6 Bg4 Rd5 Bh3 Rh5 Bf5 Rg5 hxg5 gxf5 Kd2 Kf7 b4 Ke6 g6 d5 f7 h5 c3 e3+ Kc2 d3+ Kb3 e2 g7 e1B b6 d2 b7 f4 b8B d4 b5 h4 b6 h3 b7 f3 Ne2 f2 Bf4 f1N b8N h2 Bc7 d3 Ka2 Rh6 Nd4+ Kd5 Na3 e5 Ne6 e4 Nb5 Nf6 g8N Ba3 f8Q Ng4 Qff3 Bf2 Nc6 Bfc5 Bb8 Nc7 Qe1 d1N Bf4 d2 Qeg3 Ne8 Ng7 Nb2 Re1 d1Q Re2 Bf5 Bfd6 Rf6 Nh6 Qc8 Rg1 h1Q Ne7+ Kc4 Bdc7 Rb6 Qe3 Qh5 Qh3 Qh4 Bh2 Qf6 Qf4 Qf8 Qfg3 Qh8 Neg8 Kd5 Rh1 Nfe3 Rf1 Qc1 Rff2 Qg1 Rf3 Nf1 Ne7+
2QbRbR1/n1PpnN2/Q2Kb1N1/Bq2P2p/nkBN2N1/5n2/r2n4/3b4 b - - 0 1 legal: proof: d4 a5 h4 c5 g4 cxd4 a4 b5 axb5 g5 f4 e6 f5 exf5 Bh3 Ra6 Bf1 Rg6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 e4 h5 c4 d3 b4+ Kb6 g6 a4 g7 f4 Nf3 a3 Nc3 g2 Qa4 g1B Nd1 a2 Ne3 g3 Ng5 g2 Nf7 Rh6 c5+ Kb7 c6+ Kb6 Rh3 d2 Rg3 f3 c7 f2 Be2 Bb7 Bc4 f1N Rg5 Rf6 Ng4 Bf2 Bb2 g1N Re1 B2c5 Bd4 a1N Re3 d1B Rg6 Nh6 g8N Bd5 Ne7 Nb3 Rg8 Rf2 Ng6 Ra2 Re1 Nf5 Bf2 Kb7 b6 Nfd2 Qa6+ Kc6 Re3 Bce7 b5+ Kc5 b7 Kb4 b6 Qc8 Re1 Bd8 Re3 Ne7 Kd6 Nbc6 b8N Ngf3 b7 Nc5 Re2 Na7 Nc6+ Kc3 b8Q Na4 Qbb7 Qb8 Qc8 Qb2 Bb6 Qb5 Nd4 Kb4 Rf2 Ne1 Rf6 Nef3 Re6 Nec6+ Re7 Be6 e5 Bg7 Ree8 Ne7 Bd5 Bh6 Bc4 Bf8 Ba5+
1B6/pb3N1b/k2p3P/Rr2bPRQ/r4RNr/2B2Q2/nR1K4/1br1rq2 b - - 0 1 illegal: No possible last move
1Bk2B2/Q2N1r1Q/1qP2bb1/pR1rR1b1/2r5/1Kb1n1qP/2p2R1R/4N1r1 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 d5 c4 h5 g4 hxg4 Qb3 Nc6 Be2 Nd4 Qf3 cxb4 c5 b3 Bc4 b4 Qd1 Nb5 axb5 dxc4 f4 Kd7 d4 e5 Kd2 g5 b6 a5 b7 e4 b8R c3+ Ke2 b2 f6 b3 d5 e3 Kd3 e2 Kc4 e1B h3 g3 f5 c2 d6 g4 f7 g2 f6 g3 Qd5 Bh6 f8Q Ra7 f7 Nf6 Nc3 b1Q Qa8 b2 Ra3 Qc7 Bf4 Nd5 Nf3 g1B Na4 g2 Qg7 Bd4 Rh2 g1R Re3 Bec3 Ne1 Rd8 Qh7 Bg5 f8B+ Bg7 Ree2 Bb7 Ref2 Ne3+ Kd3 Rc8 Nb6+ Kd8 d7 B7f6 Bg3 Bd5 Qb7 Bf7 Qa6 Qe5 Bf4 Kc7 d8R Rb7 Rd4 Rd8 c6 Rd5 Qa7 Qd6 Qh4 Bh5 Re8 Bg6+ Re4 Kd8 Qh7 Rf7 Nd7 Kc8 Be5 Qa2 Bg3 b1R Bf4 Rb4 Be5 Rdb5 Rd5 Qb2 Bg3 Qf4 Rc5 Qg4 Bb8 Qg3 Rcf5 Rc5 Re6 Re4 Rd5 Qb6 Ree5 Ba1 Kd2 Rec4 Kc1 Rb5 Rc5 Bc3 Rcd5 Bb4 Kb2 Bc3+ Ka3 Rb1 Rb5 Rd1 Ka2 Rd5 Kb3
4Qn2/1NB1b1QN/R1PB2Rn/Pr6/3rp3/3p2Q1/Kbkrb2n/2Qb1r2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 f4 a5 e4 axb4 e5 f5 exf6 Rh6 g5 Nc6 f5 Qa5 Be2 Nb8 Bf3 Qb6 Bg4 Kd8 f7 Qf6 gxf6 hxg4 Qd3 Rh4 Qd1 Rh8 Kd2 Kc7 h4 Kc6 c4 Kc5 Kc2 b5 Kb2 e5 a4 g5 h5 d5 a5 g3 h6 d3 h7 Kd4 c5 b3 c6 e4 Qh5 b4 Qg6 d2 Nh3 Kd3 Na3 d1B Be3 g4 Bg5 g2 Rc1 g1N Bd2 d4 Qg7 g3 Ng5 g2 Bf4 Nf3 Rh6 g1B Rg6 Nd7 Bc7 Nh2 Rb1 Be7 f8Q Nh6 f7 Ba6 f6 Rd8 Qe8 Nf8 Nc4 Rd6 Ka1 b2+ Ka2 Kc2 Qb8 Rd5 Nd6 Bae2 Nb7 d3 Qe8 Rg8 h8Q Bd4 Nh7 Be5 Rg2 Rd4 Qg3 Rg5 Rg1 Rf5 Qhg7 Rf2 Qh8 Nd7 f8Q Rf1 Qfg7 Nf8 f7 B5f6 Ra1 b1R Rg2 Rb3 Rb1 Rc3 Rg1 Rc5 Rb3 Rb5 Rb1 Nd7 f8B b3+ Ka1 b2+ Ka2 Bc5 Bfd6 Nf8 Qe1 Ba3 Rg6 Be7 Qg3 Kd2 Rc1 b1R Rc3 Rc1 Rb3 Bb2 Rb4 Rc2 Rb3 Rh5 Rb6 Rb5 Ra6 Kc3 Qf6 Rd2 Qhg7 Kc2 Qfe5 Ba3 Qef6 Ra4 Qa1 Rd4 Rf6 Bc1 Rg6 Bb2 Qc1+
kB5r/1r4Nb/r1BprRRK/rp2b2Q/3R2P1/1N4r1/n4bP1/2r2QR1 b - - 0 1 legal: proof: e4 c5 f4 a5 b4 axb4 d4 cxd4 Bc4 g5 Bf1 gxf4 e5 d6 h3 Kd7 e6+ Kc6 Kf2 Qa5 Ke1 Nd7 exd7 Qc5 Nd2 Qh5 Nb1 Qg4 hxg4 Kc5 Nc3 Kb6 Nb1 Kc6 Kd2 h5 d8Q e5 a4 f5 c4 b3 c5 e4 a5 b2 a6 d3 a7 f3 Ke3 f4+ Kf2 h4 Ra3 e3+ Ke1 h3 Rc3 h2 Nh3 e2 Kd2 f2 Qc2 f3 Ke3 e1B Kf4 d2 Kg5 d1R Be2 f1R Qd3 f2 Qa5 Ne7 Bf3+ Nd5 Nd2 b1R Nf4 Bg7 Ne6 Be5 Ng7 Bf5 Rc4 Bh7 Rg1 h1R Rd4 Rh6 Nb3 Re6 Be3 Rdc1 Qab5+ Kc7 c6 Nc3 Qc5 Kc8 c7 Na2 Bc6 b5 Qd5 Ra1 Qf5 Rb8 a8R Rc3 Raa4 Rb7 Rf4 Rd3 Ba7 Rg3 Bb8 Rc1 Rad4 Ra1 Rh1 Rg1 Rh6 f1R Rg6 Bf2 Kh6 Rfc1 Qf3 Rgd1 Qh5 Rd3 Rff6 Re3 Nc5 Ra3 Nb3 Ra6 Qe2 Nb4 Qc4 R1a5 Qe2 Na2 Qf1 Rba7 Be8 Kb7 c8R Ka8 Rcc4 Ra1 Rc1 Rb7 Bc6 Rb1 Qc4 Ra1 Rg1 Rc1 Qf1
2n1Rq1n/1rrn1R1Q/p1n2pn1/P2nqB2/2P1Bkn1/N2Q1B2/4KN2/4B3 b - - 0 1 legal: proof: f4 b5 h4 e5 c4 exf4 b4 bxc4 b5 g5 Nc3 gxh4 Nb1 a6 Kf2 Bd6 Ke1 Bc5 d3 c3 b6 c2 Nf3 Bb7 Be3 Bd5 Ng1 Bc4 Bc1 Bd4 Rh2 c5 Rh3 Bd5 Rh1 c4 Kd2 c3+ Ke1 Bc4 dxc4 Be5 Qd4 Nc6 Qd5 Bb8 Qd1 Ba7 bxa7 Nb8 e4 Ke7 g4 Ke6 a4 Ke5 g5 h5 a5 d5 g6 h3 g7 f3 Na3 h4 Qd3 h2 Bb2 c1N Qd4+ Kf4 Nb5 f6 Qc5 d4 e5 f2+ Kd1 d3 e6 h3 e7 c2+ Kd2 Na2 e8B c1N Bd7 Qf8 Qd5 Nb4 Be2 f1Q Be8 Ne7 g8Q Rh7 Nc3 Ng6 Ra2 Nh8 Nb1 Rc7 Qb5 N4c6 Bc3 Nd7 Qb3 Rb8 a8B Rbb7 Bd1 Ne2 Bc2 Qg2 Bb4 Qe4 Bd1 Qe5 Ke1 d2+ Kf1 Rb5 Na3 Rbb7 Bc2 d1N Bf5 Ndc3 Beg6 Nd5 Qc3 Ng3+ Kf2 Ne4+ Ke2 Nd6+ Be4 Nc8 Qh7 Qd4 Qd3 Qa1 Nf3 Qe5 Rg1 h1N Nd2 h2 Bf5 Nf2 Rg7 h1N Rf7 Nh3 Ra1 Qd4 Re1 N1f2 Bf3 Qa1 Ne4 Ng4 Nf2 Qc3 Ra1 Qd4 Be1 Qe5+ B3e4 Ng5 Rb1 Nf3 Rb3 Nh4 Rb2 Ra7 Rb8 N4g6 Bb7 Nde3 Ba8 Rab7 Bf3 Nd5+ B3e4 N8a7 Re8 Nc8 Nb1 Rb5 Kf1 Nd4 Bg2 Nde7 Bae4 Ndc6 Bgf3 Rbb7 Ke2 Nd5 Na3
qQ2n1R1/1pr4Q/2prn3/2B2nB1/1n2krBN/1Pn3r1/1B3P1K/1rR4N b - - 0 1 legal: proof: c4 f5 g4 d5 e4 fxe4 Ke2 dxc4 Ke1 h5 a3 hxg4 Bh3 e5 Bf1 Bb4 axb4 Rh6 Ra3 Rh5 Ra1 Rh8 Ra3 a5 Ra1 Bd7 Na3 Bb5 Nb1 Ba6 b5 Qe7 bxa6 Qd8 d4 Kd7 h4 Kd6 h5 Kd5 h6 g5 h7 a4 a7 a3 b3 g3 Bh3 e3 Kf1 a2 Kg2 e4 Ba3 g4 Bc1 e2 Bb2 e1N+ Kf1 c3 Ba3 c2 Bb4 c1R Ba5 e3 Bb4 g2+ Ke2 g3 Ba3 Ne7 Qc2 Nd3 Kf3 e2 Nd2 e1N+ Kg4 Nd7 Bd6 N3c5 Kf4 Nf6 Ne4 Ne8 Nf3 g1N Nh4 g2 Kg3 Ned3 Kh2 Ne2 Rg1 Nf5 Ng3 Rf8 h8B Nc3 Bg4 Nb4 Nh1 Ne6 Bc5 c6 Qb1 Rc8 a8Q Rc7 Qb8 Rd1 Qc2 Rff7 Rc1 a1R Bf6 Rb1 Bg5 Ne3 Qh7 Nf5 Bf6 Ke4 d5 Rd3 d6 Rd2 d7 Rd6 Bg5 Qc8 d8B Rf6 Qa7 Qa8 Qb8 Rff7 Bdf6 Rf8 Rgf1 g1R Bg7 Rg3 Rg1 Ncd5 Bb2 Nc3 Qh8 Nh6 Rg2 Rf4 Qh7+ Nf5 Bd8 N6g7 Be2 Re3 Rg3 Ne6 Rg8 Ref3 Bg5 Rg3 Bg4
5n2/n3b1n1/1B3N1k/2q1n2Q/Q1nN1N2/nBPR1PpK/2N2Rp1/qq1b4 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 axb4 d4 cxd4 g5 e5 g6 hxg6 Bd2 g5 Bc1 g4 Nh3 b5 Nd2 g5 Ng1 f5 Rb1 e4 Bh3 Ra3 Bf1 Rf3 Ra1 Rh7 Nb1 Re7 Kd2 Re5 fxe5 f4 Nh3 Rb3 Ng1 f3 Ke1 f2+ Kd2 Rf3 exf3 Qc7 Be2 Qb6 Bf1 Qd8 Ke2 Kf7 a4 Kg6 h4 d5 e6 g3 e7 g4 e8N d3+ Ke3 d2 Kf4 e3 c3 b3 h5+ Kh6 a5 b2 a6 e2 a7 e1N a8N b4 Ba6 f1N Bb7 d4 Rh4 d3 Ng7 g2 Ra4 b3 Ne6 g3 Kg4 Qc7 Na3 b1N Nb5 b2 Rc4 Nf6+ Kh3 Nfd7 Ne2 Nc6 Na3 Na7 Rhd4 Qc5 N2f4 Be7 Qa4 d1N Nc2 d2 Bd5 Na3 Nb6 b1Q Rb4 Nfe3 Bb3 Nec4 Nbd5 Ba6 Nf6 Nf8 Rd3 Nde3 Ned4 d1Q Rb7 Nf5 Be3 Ng7 Rb6 Kg5 h6 Bb5 h7 Kh6 Rd6 Be8 Rd2 Nd3 Rf2 Nde5 Rd8 Bg6 h8Q+ Bh7 Nc6 Qa1 Rd3 Qdb1 Bd4 Qa5 Bb6 Qc5 Qg8 Be4 N6d4 Bg6 Qf7 Bh7 Rd1 Bd3 Qd5 Be2 Rd3 Bd1 Qf7 Nd2 Qfe8 Ndc4 Qh5+
4nn1q/1kq4P/5n2/NB1rnrR1/4QnB1/1N1pKn2/NQNP2rp/5R2 b - - 0 1 legal: proof: f4 c5 g4 a5 b4 cxb4 f5 a4 f6 a3 Bb2 axb2 g5 exf6 Na3 f5 Nb1 f4 h3 h5 Nc3 b6 Qb1 Bb7 Nb5 Bf3 Nc3 Bg4 Qd1 g6 Nb1 Bh6 gxh6 g5 Kf2 Bf5 Ke1 g4 Na3 g3 Nb1 Bg4 hxg4 Qf6 Nh3 Qg5 Ng1 Qd8 e4 d5 Ke2 Kd7 a4 Kc8 c4 f5 h7 d4 c5 d3+ Kf3 b5 c6 h4 g5 h3 a5 g2 g6 b3 c7 h2 e5 b4 g7 Nf6 g8Q Ne8 e6 Nd7 a6 Nf8 a7 Kb7 c8N Qc7 Qg3 Rg8 Ne2 g1N+ Kf2 f3 e7 f4 Nbc3 b1N Nb5 b2 Nbd4 b3 Qg6 Nc3 Qf5 b1Q Nc2 b2 Bh3 Nd5 Nb6 Ndf6 Qe1 Rd8 a8N Rd5 Ra5 Qa1 Nc3 b1N Qee4 Na3 Na2 Nc4 Bg4 Ne5 Na4 Qac3 N8b6 Rg7 Kf1 f2 Nc4 Ngf3 Kg2 f1N Kf2 Ne3 Rf1 Ng2 Nc5+ Kc6 Nb3 Kb7 Rc5 Neg6 Qee5 Rd4 Rh1 Nfh4 Nac1 f3 Rd5 N6d7 Bh5 Qa1 Na2 Qb2 Kg3 f2 Qe4 f1R Bd1 Rff7 Rf1 N2f4 Kf2 Rf6 Bh5 Nf3 Ke3 Rff7 Qf6 Rg8 Rf5+ Rd5 Qfd4 Qc1 Qa1 Qb2 Qc1 Qh8 Qb2 Nge5 Nca5+ Ka7 Rd1 Rg3 Rg5 Rf5 Bg4 Rg2 Rh1 Ndf6 Rf1 Nd6 e8B Ka6 Bd7 Nde8 Bb5+ Ka7 Nc6+ Kb7 Nca5+
4N3/1rp2rbr/PNnB1q2/1r2Q2B/6rk/3KQR1p/1R2Pr1r/3NN2r b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Ba3 exf4 Bc1 f3 Ba3 f5 Bb2 g5 Bc1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Bg2 Nc5 Bh3 Ne4 Bf1 Ng5 hxg5 Kf7 Ba3 Ke7 Bc1 Ke8 a4 Ke7 d4 h5 Kd2 b5 g6 Kf6 d5 Kg5 d6 g3 f6 g2 g7 c3+ Kc2 f2 a5 b3+ Kd3 c2 d7 b4 f7 b2 a6 b3 Nh3+ Kh4 Na3 b1R Qd2 g1R Qe3 f3 Bg2 f1R Ra2 f2 Rb2 Qf6 d8Q Ne7 g8N Bg7 f8N Rh7 Bf3 Rg4 Qd5 Nc6 Qde5 Re8 Bd2 c1R Nd7 Re7 Ba5 Rf7 Bb4 Rfg1 Nc2 f1R Nb6 Rf2 Ba3 R1g2 Rf1 Rh2 Ne1 Rc5 Bb4 Rb5 Bd6 Ra1 Nf4 Rc1 Nfd5 Ra1 Nc3 Rb1 Rc2 b2 Nd1 Ra1 Rd2 b1R Rb2 Rbb4 Na8 Rb7 Nb6 Ra5 Rg1 Rb5 Rg3 Qh6 Nf6 Ra1 Ne8 Qf6 Be4 Rb1 Rf3 Rc1 Bg6 Ra1 Nc3 Rb1 Nc2 Rbh1 Ne1 Rgb4 Nbd5 Kg4 Nd1 h4 Qa7 h3 Bh5+ Kh4 Qae3 Rg4 Nb6
B4B2/NP2nq2/n1b1qb2/nR2N2R/NN6/p2b2n1/k2QpKP1/2q1Q2q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 d5 h6 d3 Na3 d4 Nb1 gxh6 Nc3 h5 Nb1 h4 f3 e5 Bd2 a5 Bc1 h5 Nd2 Rh6 Nb1 Rd6 f4 Rd5 exd5 e4 Rh3 Ra7 Rh2 Re7 Rh1 Re5 fxe5 Bd6 Qg4 Ba3 Qd1 Bf8 b4 Kd7 c4 f5 e6+ Kd6 e7 f4 e8Q h3 b5 Kc5 b6 Kb4 d6 e3 c5 a3 d7 h2 c6 a2 c7 a4 Qe2 Kb3 Qe5 f3 Ba3 h4 Qf2 h3 Qh4 d2+ Kd1 f2 Ke2 d1B+ Kd3 Ba6+ Ke4 d3 c8N d2 Kf4 Qe8 Kg3 Qe6 d8N Ne7 Qef4 Bg7 Ne2 Bd3 Nf7 Na6 Ne5 Bf6 Nec3 Bf3 Na7 d1Q Be2 Bc6 Bf3 e2 Qd2 f1Q Bb4 Qc2 Na3 Qcc1 Nc2 a3 Be4 Qff5 Na4 Qg6+ Kf2 Qgf7 Re1 h1Q Rb1+ Qb2 Bc5 a1N Rf1 h2 Qg3 Bb5 Ba8 Bc6 b7 Ka2 Bd6 Qc1 Rb5 Nb3 Rg1 Ng6 Bf8 Na5 Rd1 Ne7 Re1 Qa1 Reb1 Qc1 R1b4 Qab1 Rh4 Qa1 Rh5 h1N+ Ke3 Qab1 Qe1 Ng3 Kf2 Qa1 Qc3 Qab1 Qed2 Qh1 Qe1 Qd1 Qcd2 Qc1 Nb4+
3q1Q1N/7R/1nP3n1/3rpb2/N1Rb1Bq1/KpPQRk1r/1R1p4/B3nb2 b - - 0 1 illegal: No possible last move, all moves rejected
Q1B3B1/2BN1Kp1/q1r3B1/p2kqR1b/1prQb3/n1R2qN1/2P3nP/7r b - - 0 1 legal: proof: f4 e5 g4 exf4 d4 h5 gxh5 c5 Bd2 cxd4 Be3 Ba3 Bc1 Bf8 b4 Qc7 b5 Qc4 a3 Bc5 a4 a6 a5 Ba7 b6 Qa4 bxa7 Qxa5+ Nc3 Qa3 Nb1 Qa2 Kd2 Ke7 Kd3 Kd6 Ke4 b5 Kf5 b4 e4 f3 e5+ Kd5 e6 d3 e7 a5 e8B d2 h6 f2 h7 Qb2 Ra3 Nf6 Rc3 Bb7 Qe2 d1B Rc8 Na6 Nf3 Nc7 Bg2 f1R Rg1 Ng4 Kg5 f5 Kg6 f4 Qe7 Qe5 Bh1 Ne3 Qh4 Ng2 Kf7 Nb5 Rc3 Rc8 a8B Rc6 Nbd2 Na3 Ne4 d6 Bd7 Rhc8 h8Q Rc4 Qg8 R8c6 Bc8 Re1 Rf1 Be2 Ng1 f3 Bf4 f2 Nc5 Bf3 Ne2 Rb1 Re1 f1Q Nd7 Rc1 Qgd8 Ra1 Ng3 Bh5+ Kf8 Qfe2 Rf1 Ke6 Be3 Ra6 Bb6 d5 Rb1 d4 Qc7 d3 Ne4 d2 Rf1 d1Q Qb8 Nf4 Ng3 Rc5 Be4 Ng2 Bc7 Qdd6+ Kg8 Rc4 Bg6 Bd5 Rf4 Qf3 Rf5 Rh1 Qd4 Be4 Bab7 Qc6 Qa8 Rb6 Bd8 Qcb5 Bd5+ Kd6 Kf8 Rbc6 Bb6 Qa6 Bg8+ Qd5 Qf2 Qc5 Kf7 Qe5 Bc7+ Kd5 Qd4+
RbR4B/6pQ/1Nk2P2/1pn1n2r/b3qBN1/2r1nq1P/p2r2RK/R2Q4 b - - 0 1 legal: proof: e4 f5 g4 fxe4 c4 d5 cxd5 h5 gxh5 a5 b4 axb4 a3 Bg4 Bc4 Bc8 Ba2 b3 Kf1 bxa2 Ke2 Bf5 Ke1 Bc8 Kf1 Kd7 Kg2 e5 d4 c5 f4 e3 d6 c4 h6 e2 f5 e1Q h7 e4 d5 e3 f6 c3 h3 e2 a4 c2 a5 Nh6 a6 Nf7 a7 Ne5 Bf4 c1R Rh2 Na6 Nf3 Rc3 Nbd2 Nc5 Nc4 Qa5 Qd3 Qa3 Qb1 Rb8 a8R Qh1+ Kg3 e1N Rg2 Nc2 Qd1 Ne3 Nh2 b5 Ng4 Bb7 Qb1 Rd8 Qe4 Qb1 Kh2 Qab3 Qg6 Qe4 Rc8 Qd1 Qh6 Qdf3 Nb6+ Ke8 Ra8 Bc8 Qh4 Bf5 Rc8 Qd4 Qh6 Bc2 Qh4 Qde4 d7+ Kf7 d6 Ke6 Ra8 Ba4 Qh5 Rc8 d8R Rd3 d7 Kd6 Rgg1 Kc6 Rg2 Bd6 Re8 Rd4 d8Q Bb8 Qh6 Rd3 Qh4 Rc3 Qd1 Rd8 Qh6 Rd2 Rd8 Re8 h8B Re7 Qh7 Red7 Rf8 R7d5 Nc8 Ned3 Nb6 Rh5 Re8 Ne5 Rc8+
Qbn1qQ2/P2N1Q2/2K1p2R/2R2P1n/pQ1p4/n2q1B2/1b2rN2/r2bk2B b - - 0 1 legal: proof: b4 c5 g4 f5 d4 cxd4 e4 h5 exf5 Nf6 b5 Ng8 a4 Rh6 gxh5 Rh7 a5 Rh8 b6 Kf7 Bd2 axb6 a6 Ke8 Ba5 bxa5 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Kd5 Kf4 c4 b5 h4 g5 f6 g4 f7 b4 c5 b3 h6 d3 h5 b2 h7 d2 c6 g3 c7 g2 h6 Bg7 Qe1 d1Q+ Nd2 b1N Be2 Na3 Nf3 g1B Ne5 Nc6 Bf3 Bh2 Rc1 Na7 Rc5 Qe8 f8Q+ Bf6 Qg7 d6 Nd7 Bb2 Qf7+ Nf6+ Ke6 d5 Ne4 d4 Qb4 Rg8 h8Q Rg2 h7 Qd3 Qhf8 Bb7 h8Q Nc8 Qhg8 Bc6 Qh8 Ba4 Qhg8 Bg3 Rh6 Bd1 Qh8 Rh2 Bh1 Kg4 f4 Nh5 Kd5 e6+ Kc6 Re2 f5 Bh2 Nf2+ Kg3 Bf3 Ra7 Bg4 Kg2 Bf3+ Kf1 Qhg8 a4 Bh1 Rb7 a7 Rb5 Qa5 Rb3 Qb4 Rc3 Bf3 Rc1 Qh8 Ra1 Bh1 Nb6 c8B Bb8 Ba6 Nc8 Bc4 Qc3 Bcd5 Ke1 Bdf3 Qd2 Qe5 Qc3 Qc7 Qd2 Qcb7 Qc3 Qa8 Qd2 Qb3 Qd3 Qb4+
1NKb3r/rnbp2bk/8/1P1qPN1N/1Q3nB1/2ppb3/N2Q1RRB/6b1 b - - 0 1 legal: proof: e4 e5 b4 h5 g4 hxg4 a4 f5 d4 b6 c4 Ba6 a5 Nh6 b5 Ba3 c5 Bb7 c6 Ng8 cxb7 Be7 Qc2 Bf8 axb6 exd4 e5 Ke7 Qd3 Ke8 Qe4 fxe4 Kd2 Kf7 f4 Kg6 h4 c5 f5+ Kh7 h5 a5 h6 g5 f6 c4 f7 d3 Kc3 g3 Kd4 a4 Kd5 e3 Nc3 g2 Na2 a3 Rh5 g4 Ne2 g1B Rf5 g3 Bh3 g2 Bg4 Bg7 Kd6 Ne7 f8Q Nbc6 b8N Ra7 b7 Nd5 Rf2 Nf4 Ng3 e2 Nh5 Na5 Nc6 e1B Nd4 Qa8 b8N Nb7+ Kc7 Ba5+ Kc8 Bc7 Nf5 Bd8 Qb4 c3 Rb2 Bgb6 Rf2 g1B Rb1 Bbc7 Rbb2 Nc5 Rg2 Qd5 Rbf2 Nb7 Be3 Nh3 Bg5 Nf4 Bh4 Re8 Bg3 Rh8 Nc1 a2 Bh2 a1B Na2 Kg6 h7 Bb2 Qa5 Bc1 Qb4 Rf8 h8Q Be3 Qg8 Re8 Qe6+ Kh7 Qa6 Rg8 Qaa3 Rf8 Qab2 Rh8 Qd2
7r/1P2QR2/pN3bn1/pb5q/RR1bQ1b1/1n5R/P1r1bBp1/N2k1BK1 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 d4 exf4 Qd2 b6 Qa5 bxa5 Kd1 Bb4 c4 Be1 cxd5 Bd2 d6 Qxd6 d5 Qd8 b4 Kd7 h4 Kd6 e4 Ke5 Ke2 Kd4 Kf2 c5 h6 g5 d6 f5 d7 g4 b5 g3+ Kg2 Ke3 h5 c4 b6 a6 h7 c3 b7 c2 e5 Qg5 d8Q Nd7 e6 Ne7 h6 Nc5 Rh3 Nb3 Na3 Qh5 Nf3 Ng6 Ne1 f3+ Kg1 g2 e7 f4 Rb1 Bg4 Rb2 Rc8 e8Q+ Ne7 Qa4 Ng6 Rb1 Rc6 Bb2 Bc3 Qe7+ Kd2 Qae4 c1B Nec2 Be5 Bd4 Kd1 Nc4 Bf6 Nb6 Rcc8 Na1 Rc2 Rb2 Bd2 Bf2 Bdc3 Rh4 Bcd4 Rh3 Rf8 h8R Rfc8 Rh7 Rh8 Be3 f2+ Kh2 f3 Rf7 Rb8 h7 Rf8 h8R Rb8 Bc4 f1B Kg1 Be2 Rhh7 Rh8 Bf2 Nc1 Rb4 Nb3 Bd3 Qg5 R7h4 Qh5 Be3 f2+ Kh2 f1B Bf2 Bd7 Kg1 Bb5 Rf4 Bg4 Ra4 Bfe2 Bc4 Bef3 Bf1 Bfe2 Q4e6 Bc3 Rfb4 Bcd4 Qe4
4N2Q/3p1Qn1/3q4/2n2r2/1b3k1B/r1P2PpN/1nKnbRpN/B1bN3R b - - 0 1 legal: proof: d4 b5 e4 h5 a4 c5 axb5 f5 exf5 cxd4 b4 a6 g4 hxg4 b6 Nc6 b5 Nh6 b7 Nb8 b6 Ng8 Bb5 axb5 Kd2 Kf7 h4 Kf6 h5 Ke5 f3 g5 f6 d3 h6 g3 f7 g2 c3 b4 h7 g4 Qe2+ Kf4 Rh4 e5 Qe1 b3 Bb2 e4 Rh1 g3 Na3 Bb4 f8B Nf6 Be7 Na6 b8N Nc5 b7 Qc7 Nc2 Rf8 h8Q Qd6 Na6 Nh5 b8N Rf5 Ra2 Ng7 Ba1 b2 Nc7 Ra3 Nc6 Ba6 Ne8 b1N+ Kc1 e3 Ne5 e2 Bh4 Nd2 Ng4 Bb5 Nh2 Bc4 Qf1 e1B Ne3 Bf2 Nd1 Be3 Qf2 Nb1+ Kb2 d2 Nh3+ Ke5 Qf1 Ba6 Ndf2 d1N+ Kc2 Bf4 Qc4 Bc1 Qf7 Bf1 Ng5 Kf4 Rb2 Nd2 Rb1 Be2 Rf1 Nb2 Rh1 Nba4 Rf1 Bb2 Ngh3+ Ke5 Rbe1 Bc1 Nd1 Nb2 Rf2 Qe6 Ng5 Qd6 Rh1 Kf4 Nh3+
1Q5B/2p1RNkN/2qrBr1r/3nr2B/1b1n2P1/3Bp1Kp/1RP4Q/4nb2 b - - 0 1 illegal: No possible last move
1br1Q1rQ/R1r4q/1n1q1r2/3B1R1p/P1P2nk1/2pp3N/b2NQQ1B/7K b - - 0 1 legal: proof: e4 g5 b4 f5 exf5 a5 Bb2 axb4 Ba3 Bg7 Bc1 Bf8 h4 gxh4 d3 c5 c3 c4 dxc4 bxc3 g4 Kf7 a4 Kf6 f4 h5 Kf2 b5 Kg2 e5 Bd3 d5 Qf1 h3+ Kh2 d4 Bd2 e4 Ne2 e3 Qf2 b4 Bc2 b3 Rd1 b2 Ng1 e2 Be4 e1R Kh1 h2 Bd5 Qd6 Qe2 Ne7 Be3 Rf1 Nd2 b1R Bf2 Be6 Bg3 Rb7 Rdb1 Rf3 Nh3 Rc7 Rb7 Ng6 Ra7 Nd7 Rf1 Rac8 Rf2 Rg8 g5+ Kf7 f6 Nb6 f5 Nf4 Ba8 Bd5 Bc6 Be4 Bd5+ Ne6 Bf4 Bb1 Bg3 d3 g6+ Ke8 g7 Kd7 f7 Nf4 f6 Ba2 Rf1 Be7 f8Q Rf2 Be4 Ke6 Bd5+ Kf5 f7 Bf6 Qfe7 Be5 Qe8 Rf3 f8Q+ Kg4 Qfe7 Ng2 Qe1 Rf6 Rf5 Nf4 Qf2 Rc6 Bh4 Qd7 Bg2 Bb8 Qe6 Nfd5 Be4 Rh8 g8Q+ Qg7 Bg5 Qh7 Kg2 R6c7 Qg7 Rhf8 Qh8 Rg8 Bf4 Ne7 Bd5 Ng6 Qg1 h1Q+ Kf1+ Kh4 Qe2 Qh2 Be5 Qf4+ Kg2 Qg3+ Kh1 Qf4 Bd4 Qd6 Qgg2 Nf4 Bg1 Qhe7 Qgf3 Qh7 Qff1 Kg3 Bh2+ Kh4 Qef2+ Kg4 Q1e2+
R3b1Q1/2knr1PP/4n3/2n4p/N1pN1q1B/1R1pN1r1/3qnQ1K/N1b3B1 b - - 0 1 illegal: No proof kernel
R3r3/K1Q1NNb1/p1b5/B1Q1q1n1/P1p2Bqn/2b1qk1p/3R2PQ/Q3n3 b - - 0 1 illegal: Other
2k4b/2q1QnQ1/1n5r/pKn1Rp2/NQ2n1Q1/1N1B3q/PpP4b/1n2BR2 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 cxb4 e4 f5 g5 d6 e5 dxe5 Nh3 exf4 Ng1 f3 h3 b5 Bg2 Be6 Bb2 Ra6 Bf1 Bf7 Be5 Rf6 gxf6 g5 Bb2 g4 Bc1 g3 Nc3 Bh5 Nb1 Bg4 hxg4 Qd5 Bg2 Qd6 Bf1 Qd8 d4 Kd7 Kd2 e5 Kd3 h5 d5 b3 f7 b4 Kc4 e4 d6 e3 g5 e2 g6 e1N g7 f2 Ba3 g2 Kb5 b2 Be2 f1N Bg4 h4 Qd5 h3 Qd4 b3 Bb4 h2 Bf3 Nh6 g8Q Qc7 Qdg4 Nd2 Nc3 b1N Be4 b2 Bd3 Kc8 Nf3 g1B Na4 Ne4 Q8g7 Nd7 Nd4 Nb6 Nb3 Be7 Bd2 Bf6 Bb4 Be5 Bc3 Bgd4 Rf1 h1Q Bd2 Bh2 f8Q+ Qd8 Qfe7 Nf7 Bb4 Qc7 d7+ Kb7 d8Q Rh6 Qdd6 Kc8 Bc3 Qf3 Qb4 Qh3 Bc4 Nd3 Be1 Ndc5 Bd3 Nbd2 Rd1 Nb1 Rd2 Bde5 Re2 Bc3 Q7g6 Bh8 Qg7 Nf6 Re6 Nfe4 Re5
1RR1K3/4QQ2/n1B2Q1n/2bN3p/p1qbr1qQ/Pp6/Pk6/2Bbn1Nb b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 e3 fxe3 Qb3 gxh4 Qd1 a5 Bd3 b5 Be2 Ra6 Bf1 Rc6 Rh2 Rc3 Rh1 Ra3 bxa3 Bb4 Nh3 Bc5 Ng1 Bf8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 g4 h5 d3 a4 g5 b4 d6 f4 d7 f3 Ke6 Kd4 Kf7 c5 g6 b3 g7 e2 Bg2 e1N Bh3 c4 Bf5 f2 Nc3 f1Q Nd5 h3 Qe2 h2 Qe7 c3 Rb1 Qb6 d8Q c2 Ke8 Nh6 g8Q Na6 Qgf7 Qb4 Be4 Bg4 Qh4 Qg2 Qde7 Bd1 Rb2 Qc4 Qef6+ Kc5 d4+ Kb5 Rb1 Qg4 Bg5 c1B Nf4 Qc3 d5 Kc4 d6+ Qe6+ Kd8 Be3 d7 Be2 Rd1 Ng2 Ngh3 Qc2 Rhe1 h1B Rc1 Bd4 Ng1 Kc3 Ba8 Qg4 Nd5+ Kb2 Bb7 Bf1 Re8 Ne1 Bf4 Qce2 Rc7 Rg8 Bc6 Qc4 Bg5 Bc5 Bc1+ Kc2 Rb7 Be2 Rb8 Bd1 Rf8 Rg5 Re8 Rf5 Rg8 Rf4 Rf8 Ba7 Ke7 Kb1 Rfc8 Bac5+ Ke8 Kc2 d8Q Re4+ Qde7 Kb1 Bf4 Kb2 Bc1+
3n3q/2Bk3b/3NP2R/Q1K1pn2/P2N1pb1/R1bpr2B/1R6/n1bRQ2q b - - 0 1 illegal: No possible last move, all moves rejected
R2B3b/3Nqq1p/4p1n1/BNrN2pn/4KQP1/Nr4P1/3Qnkrn/2R5 b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 f5 Kd2 fxe4 Ke1 a6 b4 d6 h3 Nd7 b6 Ngf6 b7 Ng8 b5 Nb8 b6 Bg4 Bb5+ axb5 hxg4 Ra7 Bf4 Ra3 Bc1 Ra8 Ke2 Kf7 f4 Kf6 c4 g5 c5 d5 f5 Ke5 f6 d3+ Ke3 b4 g3 d2 c6 d4+ Kf2 b3 f7 e6 c7 d3 Ke3 b2 c8N Ne7 Qc2 d1N+ Kd2 Kd4 Rh3 e3+ Ke1 e2 Kd2 e1N Na3 b1R Nc4 Rb3 Rh1 Nc3 Nh3 Ne2 N8d6 Nd7 b8N Bg7 f8B Ng6 b7 Ra2 Na3 Qe7 Nf4 Nf6 Nd5 Nh5 Nd7 Be5 Bg7 Rc8 b8Q Rc5 Ndb5+ Ke4 Rg1 Kf3 Bf6 Kf2 Qf8 Qf7 Bd8 Bh8 Qd6 Qe7 Bb2 Qf7 Bc3 Rab2 Bca5 Nf3+ Kd1 Nh2 Kd2 Qe7 Rgc1 Ra2 Kd1 d2 Qb2 Bc3 Kc2 Qf7 Kd3 d1Q+ Ke4 Bh8 Qd2 Qe1 Qb4 Qc3 Qf8 Qcf6 Qd2 Rab2 Qd6 Q6e7 Q6f4+ Nf3 Nc4 Rb1 Rc2 Kg2 Bab6 Rg1 Rcc1 Kf2 Ra8 Rg2 Bbc7 Ba1 Nca3 Bh8 Qd6 Nh2 Ba5 Ng7 Qc7 Nh5 Qcf4+
2b3r1/NQpn3P/1r2bq1B/4R1pP/K1N1p1RN/1B2Q1b1/1qr4b/N5k1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e4 f5 g4 fxe4 h4 Ra7 h5 Nd7 h6 Ra8 Qb3 Ndf6 Qg3 Nh5 gxh5 Ra4 Qg2 Ra8 Qg6+ hxg6 Kd1 Kf7 Kc2 Kf6 Kb3 Ke5 a4 Kd4 f4 b5 f5 e5 h7 e3 f6 e4 a5 e2 d6 e1Q d7 g5 a6 g4 f7 g6 a7 g3 Ra5 g2 Rh4 Qf6 d8N Bc5 f8Q Bd6 Qh6 Qef2 Rg4 Bg3 Na3 Rb8 a8Q Rb6 d3 Rc6 Qg5 Rc2 Nf7 Qe2 Ne5 Qd2 Nh3 g1B Qb7 B1h2 Nf4 Ke3 d4 Kf2 Ng2 Kg1 Nec4 Qdf2 Qc5 Qe2 Bh6 g5 d5+ Qef2 d6 Q2d4 d7 Qdf2 Nb2 Q2d4 Ka2 b3+ Ka1 b4 d8N Qdf2 Nc6 Q2d4 Qc3 Qd2 Nbc4 b2+ Ka2 b1B+ Kb3 Ba2+ Ka4 b3 Rb5 b2 Re5 b1R Na7 Rb6 Nh4 Qc1 Be2 Qa1 Bd1 Qb2 Na5 Bae6 Nb3 Qe7 Qf3 Nf6 Nc4 Rg8 Na1 Nd7 Qd3 Qf6 Qe2 Rc3 Bb3 Rc2 Qe3+
1k1r2Rq/2p1P1r1/1QQ4b/2K2QpP/p2BQ1bb/R1N1N1n1/2b5/2B1q1r1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 Nh3 h5 Kf2 f5 Ke1 f3 Ng1 f4 Bh3 Nc6 Ra4 Nce7 Ra1 Nf5 gxf5 Rh7 Bg4 hxg4 Kf2 Rh6 Ke1 Rh8 Kf2 Kd7 h4 a5 d4 g5 e4 c3 b4 c2 f6 a4 e5 Rb8 e6+ Kd6 e7 Ba6 d5 Qe8 f7 Bh6 f8Q Qf7 b6 Qf5 b7 Qe5 b5 Nf6 b6 Rd8 b8Q Bd3 b7 Kd7 d6 Nh5 Ra3 Rg8 Qe2 Ng3 Qe4 Qh8 Ne2 Rg7 Nd4 Be2 Nc3 Bd3 Be3 c1R Nf5 Rg1 Bc1 Bb1 Qa7 Bc2 b8B Kc8 h5 Nf1 Ne3 g3+ Ke1 g2 Kf2 Ng3 Qb6 Bb3 Ba7 Bd1 Qbc6 Bc2 Bd4 Kb8 d7 Rh7 Nf1 Rg7 Ke1 f2+ Kd2 f3 Ne3 f1Q Qff5 f2 Rh4 Qc4 Rf4 f1B Rf3 Qe6 Rf2 Rc8 d8Q Be2 Qdd6 Bg4 Rf1 Rd8 Rd1 Bb3 Kd3 Qe5 Qdg6 Bc2+ Kc4 Qa5 Na2 Qe1 Kc5 Rf1 Nc3 g1B Rd2 Bf2 Qgd6 Rg1 Qdg6 Nf1 Qgf6 Bh4 Rf2 Bd3 Qfd6 Ng3 Rb2+ Ka7 Rb8 Bc2 Rc8 Rd7 Rg8 Rd8 Qa6+ Kb8 Qdc6 Ne2 Qa5 Ng3 Qab6+
1bBb1R2/1B5Q/4pBK1/1NN2r2/2R5/bbbrkPP1/p1p1Brn1/Q1n5 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 dxc4 a4 b5 e4 f5 Nc3 fxe4 Nb1 Qd5 Rh2 bxa4 Rh1 a3 Ke2 a4 Ke1 Qa5 bxa5 Bb7 Rh5 Ba6 Rh1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 c5 d4 h5 f3 h4 d5 e3 a6 a2 d6 h3 a7 e2 d7 e1B d8Q c3 Be2 a3 Bb2 c4 Q1d5 h2 Q5a5 c2 Nc3 c1B+ Qd2 Be6 Qb4 Bh4 Qb5 Rh5 Qb4 Nd7 Nh3 Nh6 Rg1 h1R Bd1 Rd8 a8B Nc5 Rf1 Ng4 Nb5 c3 Qa5 Bb3 Be2 Ne3 Qd7 Rh2 Nf2 Nd3+ Ke4 Bg7 Bb7 Be5 g3 c2 Rh1 Bb8 Bf6 Ng2 Qf5+ Kf7 Qh7+ Ke6 g6 Rf5 g7 Rdd5 Rb1 a1B Qa7 Bc3 g8B+ Kd7 Bc8+ Kc6 Qa5 Rd6 Bd5+ Kc5 Bdb7 B1b2 Ra1 Nc1 Nd3+ Kc4 Nc5+ Rd3 Qc7 Bg5 Qe5 a2 Rb1 Ba3 Rd1 Ba5 Qa1 Bd8 Rh1 Bd2 Re1 Bc3 Rh1 Rhh5 Rh4 Rh6 Rg4 Rh1 Rg8 Rf1 Rf8 Rf2 Rb2 Bd4 Nc7 Kc3 Nb5+ Kd2 Rb1 Bc3 Rb2 Bc4 Rb4 Bb3 Rc4 Ne1 Qh2 e6 Qh7 Re5+ Kf4 Rf5+ Kg4 Ke3 Kh4 Ng2+ Kg4 Rf4+ Kg5 Rf5+ Kg6
3rR2n/2Rk4/P1nbN3/1K1p3b/5Pr1/pn4QR/2RpBB1n/N1b1rQ2 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 Bd3 cxd4 Bc4 bxa4 Bb5 a3 Ba6 a4 Bf1 Qa5 bxa5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 h5 Kd3 e5 Kc4 d5+ Kb5 e4 g4 h3 c4 e3 f4 d3 c5 h4 c6 a2 g5 h2 c7 h3 f6 a3 f7+ Kd7 g6 e2 a6 e1B g7 Nc6 Be3 Nh6 g8Q Bd6 f8R Bd2 Qe1 Bc1 Qg5 Rg8 Nf3 Nf7 Qe2 Nh8 Qg3 Rg4 Nbd2 Rb8+ Bb6 Ra8 Rb1 a1N Nd4 Nb3 Ne6 Rb8 Rb2 Ra8 Nc4 d2 Ne3 Rb8 Nc2 Ra8 Rg1 h1R Na1 h2 Re8 Rb8 Rg2 Rg1 Qef3 h1N Rc2 Nf2 Be2 Re1 Qd3 Nh3 Rf2 Ng1 Rh2 Nf3 Rh3 Nh2 Qdf3 Bb7 Qf1 Rd8 Bf2 Bc8 Rf8 Ke7 Rg8 Bd7 c8R Be8 Rf8 Bh5 Re8+ Kd7 Rc7+
1kN2K2/1n5B/6qB/2P2Nnn/1QqpQ1pP/3p2qN/4brq1/1R1RN2q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 e5 d5 exf4 d6 cxd6 Nd2 d5 Nb1 d4 Nh3 h5 Ng1 b5 Na3 Be7 Nb1 g4 g3 Bg5 hxg5 h4 g6 h3 Qd2 Rh4 gxh4 Ra6 Qd1 Re6 Be3 Re5 Bd2 Rh5 Bc1 Rh8 Kd2 d5 Kd3 Kd7 c4 Kc7 a4 f5 e4 f3 a5 b3 g7 f2 a6 h2 c5 b4 e5 f4 e6 b2 e7 b3 e8Q f3 a7 Ba6+ Qb5 Nc6 Ra5 Nf6 g8N Qb8 Na3 b1N Qc4 b2 Nh3 Nd8 Nh6 Nh5 Nf5 Nc3 Qe2 b1Q+ Nc2 Nb7 Qe4 Rf8 a8N+ Kc8 Bh6 Qg3 Ra4 Kb8 Ra1 Bb5 Rg1 h1Q Nb6 Qhg2 Be2 f1Q Nc8 Qfc1 Rd1 f2+ Bf3 Ba6 Qb5 Qg5 Qc4 Qg6 Qb5 Qa2 Ne1 Qh1 Rab1 Qc4+ Kc2 f1Q Qb4 Qfg2+ Be2 Qcd3+ Kb3 Qb5 Bd3 Rf7 Qf3 Ne4 Qe3 Ng5 Qe4 Qc4+ Ka4 Qc3 Bc2 Bf1 Bd3 Be2 Kb5 Nf6 Kc6 Qc4 Bc2 Rf8 Bd3 Nh5+ Kd7 Rf6 Ke7 Rf8 Bc2 d3 Bb3 d4 Ba2 Qca6 Bg8 Qc4 Bh7 Rf6 Ne3 Rf3 Nf5 Rf2 Kf8
3B1bk1/1BpbP1P1/n1Nbn3/bKn1R1n1/Q1np2QN/8/1p4QR/2Q1r3 b - - 0 1 legal: proof: e4 a5 c4 f5 b4 axb4 h4 fxe4 h5 b5 h6 b3 Qe2 gxh6 Qg4 h5 Qd1 h4 d4 e5 Qg4 b4 Kd2 e3+ Ke2 e4 Ke1 Ra5 Qd1 Rb5 cxb5 Qg5 Bd2 Ne7 Bc1 Qe5 dxe5 Ng8 Ke2 Kf7 f4 d5 a4 h5 g4 b2 f5 h3 g5 d4 f6 h4 b6 b3 a5 h2 a6 h3 b7 Rh4 a7 Bd7 a8Q Ne7 e6+ Kg8 g6 Nf5 Nd2 b1N Nc4 b2 Na5 Na6 b8Q Ng7 Nc6 Na3 Qb5 Nc4 Ra5 Rf4 Bg2 Rf1 Nf3 Rg1 Qc8 Rf1 Rg1 h1N Nh4 h2 Qba4 Nf2 Re5 Nh3 Rh1 Ng5 Bd2 Rg1 Qc1 Rf1 Bb4 Rd1 Be7 Rf1 Rg1 h1N Bd8 Nf2 e7 Nd3 Rh1 Ndc5 Rh2 N7e6 f7+ Kg7 Qc3 Ra1 Qc1 Kh8 Kd1 e2+ Kc2 e1B Bh1 e3 Bf3 Nce4 Kb3 e2 Qb7 Bg3 Bh1 Nb8 Kb4 e1B+ Kb5 N4c5 Qba8 Nba6 Qc8 Be8 Qd7 Kg7 Qd5 Bd2 Qg2 Bd7 Re1 Ba5 Qgc2 Nf4 Qe3 Bg4 Nb8 Rb1 Bb7 Ra1 Qg2 Bd7+ Nc6 Nfe6 Qeg1 Bd6 Re5 Rc1 Qe3 Re1 Qc1 Kh6 Qg4 Bg7 f8Q Nf4 Rg2 Nfe6 Qff3 Bf8 g7 Kh7 Rh2 Kg8 Qfg2
4k3/PQ1N3R/P1b3p1/1Q1Bp2n/1b3rR1/BB2p2n/2N1Bp1r/3Kbqq1 b - - 0 1 legal: proof: d4 h5 b4 a5 bxa5 e5 g4 hxg4 f4 Qe7 e3 c5 f5 Qe6 fxe6 cxd4 Qe2 dxe3 Qf3 Rh6 Qd1 Rh8 h4 b5 c4 d5 a4 f5 h5 b4 a6 g6 h6 g3 e7 f4 h7 d4 a7 g2 c5 f3 c6 d3 a5 b3 a6 b2 c7 Kd7 Na3 b1Q Nc2 Nc6 Ne2 g1B Nf4 Bb7 c8B+ Ke8 Ne6 Nb4 Ra4 Bc6 Nc5 Nd5 Rg4 Nf4 Nd7 Nh3 Qe2 d2+ Kd1 Bf2 Qb5 Be1 Be2 f2 Bb7 Nf6 Rh2 Nh5 Rh1 Rg8 h8Q Rd8 Qf6 Rh8 Qf3 Rh7 Qfd5 Rf7 Ba8 Rf4 Qb7 Qb5 Ba3 Qc4 Bf3 Qf1 Qdb5 Rf7 Be2 Rh7 Nb8 Rd4 Nd7 Rf4 Bc1 Kf7 e8B+ Ke7 Bf7 Rh6 Bg8 Ke8 Bb2 Bb4 Ba3 Ng1 Qd5 Ng7 Bd3 Qg2 Rg3 Ba4 Qc7 Rh7 Rh4 Rh6 Rhg4 Rh2 Be2 Qh1 Rh4 Nh3 Rh7 Nh5 Rg4 Qg1 Qd3 Bb5 Bb3 Ba4 Bad5 Bb5 Na1 Bc6 Kc2 d1Q+ Kb2 Qg2 Nc2 Qg1 Qb5 Bed2 Qcb6 Qdf1 Qb7 Be1 Kc1 Be7 Kd1 Bc5 Nb6 Bcb4 Nd7
N4r2/4b3/P4B2/N2pqnrQ/k1RN1Q2/1r2B1pN/1prp1P2/2nR1Kb1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 exf5 a5 g4 axb4 Bd3 b6 Be2 h5 f6 Ba6 Bf3 Bd3 Be2 Bf5 gxf5 Ra5 Bf3 Ra8 Bg4 hxg4 h4 g5 a4 d5 c4 Kd7 f7 Kc6 h5 e5 h6 e4 f6 e3 h7 g3 a5 g4 a6 d3 c5 Kb5 c6 d2+ Kf1 e2+ Kg2 e1R c7 b3 c8Q b2 Qb7 Re5 Ra4 Rg5 Qc7 Qd6 Nh3 Nh6 Rc4 Nf5 Kf1 Be7 f8N Qe5 f7 Nd7 Ne6 Rhf8 h8B Rac8 Bf6 Nc5 Na3+ Ka5 Qd6 b1R Nd4 b5 Bb2 b4 Ba1 b3 Rg1 Qe4 Qf4 Nd3 Bb2 Nc1 Rh1 Rfd8 f8N Qe5 Nd7 Rf8 Nb6 Rc5 Na8 Rc6 Rc2 Ka4 Nc4 Rc7 Na5 g2+ Kg1 Rc4 Ba3 Rb2 Bc5 Rb4 Rc4 Rc2 Nf3 b2 Be3 Qb8 Nd4 Qe5 Kh2 g1B+ Kg2 g3 Qh5 Bh2 Rd1 Bg1 Rc8 Rb5 Kf1 Rb3 Rc4+
B1Qr1q2/b3n3/kPq2RP1/N1p4R/1RppN1bp/R1r5/b4q2/2Q1B2K b - - 0 1 legal: proof: e4 b5 a4 e5 h4 d5 f4 g5 c4 bxc4 f5 gxh4 d4 Nc6 dxe5 Nd4 e6 Nb5 axb5 d4 f6 Qxf6 e5 Qd8 Kf2 h5 g4 f5 Kg2 f4 b4 Bc5 g5 Ne7 b6 f3+ Kh2 a5 b5 f2 g6 a4 b7 h3 b8R a3 Ne2 a2 Bd2 Ba7 Nc1 c5 Bg2 f1Q Nc3 Qf2 Be1 h4 Nb3 Qd5 Ne4 Kd8 Rf1 Kc7 Qc1 Rd8 Na5 Qc6 Kh1 h2 Rb6 Qf8 Rf5 Rb8 Rh5 Rb7 Rb1 a1Q Rb4 Qb2 Ra6 Qbf2 Rb6 Ng8 e7 Bg4 e8R Ne7 e6 Rbb8 Ra6 Ra8 b6+ Kb8 Nb3 Kc8 Ra2 Kb7 Na5+ Ka6 Ra1 Bd1 Ra3 Bb3 Bf3 Ba2 Bg2 Rd5 Rc8 Rg5 Rd8 Rg3 Rd6 Rc3 Bf3 Nf5 e7 Rd8 e8Q Ne7 Re6 Qe3 Kg2 h1B+ Kh2 Bg2 Rf6 Bh3 Kh1 Qf2 Qd7 Bg4 Qc8+ Qb7 Ng5 Bh3 Bd5 Bd7 Ne4 Bg4 Qd7 Qc7 Ba8 Qc6 Qc8+
nrk1N3/N1n1RKp1/p2q1P2/5p1n/r2Q1bq1/1B2p1R1/P5QB/2B1qB2 b - - 0 1 legal: proof: e4 b5 c4 bxc4 g4 h5 e5 hxg4 d3 cxd3 f3 f5 Be3 Bb7 Bc5 Be4 Be3 e6 Bc1 Qf6 exf6 e5 Qc2 Bc6 Qd1 e4 Bh3 e3 Bf1 Be4 fxe4 Bc5 Bh3 Bd6 Bf1 Bf8 b4 Kd8 h4 c5 b5 d5 e5 g3 h5 g2 h6 c4 e6 d2+ Ke2 d4 Kf3 d3 Kf4 a6 Kg5 c3 Kg6 c2 e7+ Kc8 e8B Rh7 b6 Kb7 Nc3 Ne7+ Kf7 Nd5 Rb1 Kc8 Nh3 g1N Nf4 Nd7 Ne6 Rb8 Nc7 Nh3 Rg1 Bd6 Rg3 Nhf4 N3b5 Nh5 Rb2 Rh8 h7 Bf4 Qg4 d1Q b7+ Kd8 Qf3 d2 Qg2 N7b6 Na7 Qg4 Ba4 d1Q Bb3 Na8 Ne8 Ndc7 Rb1 Qd6 Rb2 Rg8 h8Q Rc8 b8B Kd7 Bd2 c1Q Rb1 Qe1 Bc1 Nd5 Qh6 Rc4 Qg5 Ra4 Qh4 Qc5 Be5 Qd6 Rb2 Kd8 Rc2 Rh8 Rc7 Rg8 Re7 Ndc7 Qhh1 Rh8 Qb2 Rg8 Qhg2 Rh8 Qd4 Rg8 Nc6+ Kc8 Na7+ Kb8 Rh3 Bg5 Bh2 Bf4 Rf3 Qd7 Nd6 Rd8 Ne8 Qd6 Qg3 Kb7 Qg2 Rb8 Nc6 Kc8 Rh3 Be5 Rg3 Bf4 Na7+
3qBKQ1/3p2R1/1Nq3r1/4p1Pk/1n4bp/pP1N1B2/1b1Q1nq1/3R1BBn b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 f4 gxf4 e4 f5 h4 fxe4 g5 Ra6 d5 cxd5 h5 Rg6 hxg6 d4 Ke2 h5 c4 e5 g7 Kf7 c5 Kg6 c6 e3 Kd3 f3 Kc4 e2 Kd5 e1Q b3 d3 b6 f2 c7 a4 b7 d2 Ne2 Rh6 Nbc3 Nc6 b8Q Ba6 c8B Nge7+ Kd6 Nb4 g8B h4 Nd5 a3 Nb6 Kh5+ Be6 Rg6 Bb7 Bd3 Ba8 Bf5 Bf3+ Bg4 Qc2 d1N Be3 Qc3 Qd2 Bg7 Nc1 Bf8 Nd3 Qc4 Rc1 Qe4 Rc8 Qc4 B1e2 f1Q Bg1 Qg2 Bf1 Nf2 Qa8 Rg7 Bg8 Qb5 Qd5 Rg6+ Qe6 Qa6 Bf7 Qc4 Rc6 Qa6 Be8 Qaa8 Kc5 Nf5+ Rd6 Ng3 Qg8 Bg7 Re6 Bf8+ Re7 Qa4 Kc4 Qaa8 Rg7 Bc5 Kb5 Bd4 Kc4 Ba1 Kc5 Bb2 Rf7 Rg7 Kd6 Qc7+ Ke7 Qad8+ Kf8 Rg6 Rg7 Qc6 Rh3 Ngh1 Rh2 Qg3 Rg2 Nd1 Re2 Qg2 Re1 Ndf2 Rd1
7K/1nrpN2p/1RPn2P1/Qp1Nn2k/3qp1rr/BBR2bq1/6B1/4Q1B1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 g5 f4 gxf4 h4 Nh6 g5 Bg7 g6 Bf6 Qf3 Bg5 hxg5 Ng8 Qg4 Nf6 Qd1 Ng8 Kf2 e5 Kf3 b5 Ke4 b3 c4 f3 a4 f2 a5 d3 f6 b2 Kf5 d2 a6 Ra7 f7+ Ke7 f8B+ Ke8 g7 Kf7 c5 Nc6 Qe1 d1Q Nc3 b1N Be3 Nf6 Ra3 Ne8 Nge2 Qd4 Nf4 Na5 Bg2 f1R Bg1 Bb7 Nd5 Qc7 Ne7 Bf3 Nfd5 e4 Rc3 Rg8 Rh6 Nb7 Rb6 Na3 c6 Qb8 Rc1 Qg3 Rc3 Ra8 a7 Rc8 a8Q Nc4 Qa5 Rc7 Ng6 Rf2 Ba3 Ne5 Nge7 Rc2 Bf1 Rh2 Bg2 Rf8 g8B+ Kg7+ Bf7 Rh4 g6 Kh6 Qd1 Kh5 Qe1 Ned6+ Kf6 Rg4 Kg7 Rh4 Be6 Rff4 Kh8 Rfg4 Nf4+ Kh6 Bb3 Kg5 Nfd5 Kh6 Qa1 Kh5 Qe1
r2k2Rr/r2nPp2/1bPqpp1Q/1RNN1p2/7r/3KN3/2B4N/rn3BQ1 b - - 0 1 illegal: No possible last move
QQ4q1/1K2n2r/5p1p/q2p2kp/bN6/bPPNBR2/1BQ1q1q1/R1Q4n b - - 0 1 legal: proof: d4 a5 h4 b5 f4 c5 g4 cxd4 a4 e5 axb5 exf4 h5 g6 h6 Ne7 g5 Ra7 Bh3 Nbc6 Bg4 Nf5 Bh5 gxh5 g6 Nfe7 g7 Nb8 Na3 Nd5 Nb1 Ra6 g8Q Rg6 Nd2 Rg4 Nb1 Rg7 hxg7 Nf6 Kf2 Ke7 Kf3 d3 e4 d6 e5 a4 c3 h6 b6 d2 b3 a3 e6 a2 b7 Qb6 Qc2 d1Q+ Ne2 Qa5 Bb2 Nc6 b8B Bd7 Rf1 Rh7 Na3 Ng4 Ke4 Kf6 e7 f3 e8Q f2 Ba7 Ne7 Qb8 Kg5 Nf4 f6 Be3 Ba4 Qe6 Qe2 g8Q+ Rg7 Kd4 d5 Qa6 Qd8 Kc5 Qe8 Qh8 Rh7 Kb6 Qf7 Kb7 Qg8 Rfc1 f1Q Nd3+ Kf5 Qaa7 Qfg2 Rf1+ Nf2 Qc1 Kg4 Qaa8 Nh1 Nc2 Kh4 Rf3 Kg4 Rb1 a1Q Qg7+ Kh4 Qg6 Qa3 Ra1 Qc5 Nf4 Qa5 Qe4 Kg4 Nb4 Kg5 Qec2 Nc6+ Qc7 Be7 Qb6 Bc5+ Qc7 Ne7 Qcb8 Bd6 Na2 Ba3 Nd3+ Kh4 Nab4 Kg4 Rf4+ Kg5 Rf3+
1b1qQ1B1/5p2/1P1qB1b1/KR3Q1p/2pNnkNb/3pnP2/1r2b2R/1N2N3 b - - 0 1 legal: proof: d4 d5 c4 dxc4 a4 e5 f3 exd4 Bd2 g5 Bc1 b5 axb5 g4 Be3 g3 h4 a5 h5 Qe7 Kd2 Qh4 Bf2 gxf2 g4 Qd8 g5 Ra7 Qc1 Ra6 Qd1 Rg6 hxg6 Ba3 Rh2 Bc5 Rh1 Bf8 b4 Kd7 e4 Ke6 b6 Ke5 g7 c5 b7 h5 b5 a4 g6 a3 Qc2 a2 Bh3 f1B Be6 Kf4 e5 Bd6 Rh2 Nh6 g8N Ng4 g7 Be2 Nh6 Ne3 g8B Na6 Ng4 Bb8 b6 d3 Kc3 Rh6 Qb3 Rg6 Qb5 Bd7 Qa5 Bc6 Qb5 Be4 Qd7 Rg5 Qc8 Bg6 Nh3+ Kg3 Nf4 Qd6 Kb2 c3+ Ka3 c2 Ka4 c1Q Ng2 c4 Ka5 Nc5 Ne1 Ne4 Qc5 Kf4 Qd5 Bc7 b8N Qb2 Qb5 Qbd4 Nc6 Bb8 Qc5 Q4d5 Nd4 Rf5 Na3 Rg5 Rb1 a1B Rb5 Qd8 Nb1 Q5d6 Bf5 Bb2 e6 Ba3 e7 Bb2 Nf2 Rg2 e8Q Ba1 Ng4 Rf2 Nc6 Bf6 Be6 Bh4 Qd5 Bf1 Qc5 Rb2 Nd4 Be2 Qf5+
K3kB2/2p3QP/P1n3r1/1n1QpQ2/4nR2/5p1R/1bN1qpp1/2bBN1Qn b - - 0 1 illegal: No proof kernel
3R3R/k1r1Bn1P/5rnn/1q1r3q/1Pn2N2/1bR1q1bB/3Q3R/NQbn1K2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 e4 g5 c4 a5 h4 d5 b4 Kd7 e5 Kc7 c5 Kb7 c6+ Ka7 e6 f5 e7 g3 e8Q f3 h5 g4 h6 g2 h7 d3 c7 f2+ Kd2 d4 Nh3 g1Q Qc2 g3 Qe1 f4 Qc6 g2 Qf3 a4 Ba3 Qh4 Kd1 d2 Ke2 d1R Nc3 Nc6 Rb1 Nh6 Bc1 a3 Bb2 a2 Qe3 a1B Na4 Be6 c8R Qh5+ Qf3 Bb3 Nc5 Ne7 Qd2 Ng6 Qc1 Bd6 Ng5 Rf8 Nd7 Rf6 Re8 Rc8 Qe3 Rc7 Rh2 Be5 Bc3 Bb2 Ne6 Bc1 Rd8 Rd3 Qg4 Rd1 Qd2 f3+ Kd3 Bg3 b6+ Ka6 b7 Ka7 Be2 f1N b8R f2 Ndc5 Ne3 Qf5 f1Q Nf4 Qgf2 Rh8 g1N Rbd8 Nh3 Ba1 Bb2 Rc1 Nc4 Rc3 Ng5 Qe4 Bc1 Qh1 Q1g1 Bg4 Ngf7 Bh3 Qgg2 Bb2 Qb7 Qe4 Qb5 Ba1 Ba2 Nb3 Qe1 Bb2 Qg1 Na1 Bb3 Qe1 Qf2 Bg4 Qg1 Ke2 Qe3+ Kf1 d3 Bh3 Qhe5 Qc2 d2 Qb1 Qh5 Rc2 Re6 Bf6 Ra6 Rc3 Rd6 Kg2 Rd5 Qf2 Rf1 Be7 d1N Qd2 Rf3 Ne6 Rff5 Nf4 Rf6 Kf1
R6q/1qQ1br2/b2N2n1/2bQn1kN/rP1Bb3/PK1bb1BB/3b4/2B1nR2 b - - 0 1 illegal: No proof kernel
BK4n1/NB1B4/1b6/1qq1n1rb/1rN1rQ1Q/3P1q1R/3BP3/1kr1rrbR b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 f5 g4 h5 a5 c5 d6 b5 d7 h3 a6 h4 g5 f3 g6 b3 g7 b4 a7 h2 Ra5 f2 Nf3 b2 Rg1 h1R Ra1 h3 Rg4+ f4 Nh4 h2 Ra5 b3 Qe1 Qe7+ Kf5 Nc6 Rg5 f3 Ng6 Rh5 Bg2 f1Q Nh8 f2 Bf3 Ne5 Nc3 b1R Kf4 b2 d8Q Kb3 d3 Kc2 Be4 c4 Ra3 Bg4 Bb7 Qc5 Nb5 c3 Qf6 Re8 a8B Qg2 Rg6 Rg5 Bd2 Bh5 Na7 f1R+ Qf2 Rbc1 Ra1 b1R Nf7 Qgc6 Nd6 Rb4+ Nc4 Q6b5 Rh6 Rhg1 Qd8 h1Q Qb8 Rfe1 Qh4 Be7 Rb1 Bd8 Rh7 Bb6 Qc7 Ne7 g8B Qg2 Be6 Ng8 Rh6 Qg3+ Ke4 Rgf1 Qf7 Re7 Qff4 Qgf2 Bd7 Re6 Rb3 Re7 Ra3 Kb1 Rh7 c2 Ra6 Bc7 Rah6 Bb6 Rh8 Rg4 R8h7 Qf3+ Kf5 Reg7 Ke6 R7g5 Rh8 Rcd1 R8h7 c1B Rh8 Bb2 R6h7 Bd4 Rh6 Qc8 Kd6 Rc1 R6h7 Bg1 Rh6 Bbd4 R8h7 Qf8+ Kc7 Qfc5+ Kb8 Bdf2 Qd4 Re4 Qf4 Bg6 Rh1 Bh5 Qh4 Qcc6 Qd6 Bb6 Qd4 Qcc5 Qf4 Be8 R7h3 Bg6 Qf2 Bh5 Q2h4
1Kb1Nq2/2nbPB2/4n3/2q1qBbr/2RknR2/B3rBnP/NQ4Q1/1nn5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 a4 b5 c4 d5+ Kf3 Ke5 e4 f5 h3 b3 a5 b2 a6 g4+ Kf2 b4 a7 b3 c5 d3 h6 f3 Ke3 f2 c6 g3 c7 g2 h7 d4+ Kf3 f4 Nc3 b1B Qe2 d2 Qd3 d1Q+ Nce2 b2 Ra2 Qe7 Qe3 d3 Qd2 Nh6 Ra5+ Qc5 Ra4 Qe1 Nc3 Nf5 Nge2 Ng7 Nb5 Be7 Nd6 Na6 Ne8 Bg5 Nc3 Ne6 Na2 g1N+ Kg4 Rb8 a8B f3 Qc2 d2 Bc4 Bd7 c8B Kd4 e5 d1N Kf5 f1N Be4 f2 Bf3 Qe3 Ra3 Rb7 Rc3 Ne2 Rg1 Nac7 Rg4+ Bf4 Kf6 Nfg3 Kf7 f1Q Qg6 Qd5 Ke7 Rb3 Qg5 Qa5 Kd6 Bf5 Qg7 b1N Ba3 Nf2 Qg8 Nf8 Bf7 Nc1 Qg5 Nfe6 Qg6 Rf8 h8Q Qee2 Qhf6 Rh8 Qg8 Rh5 Rh4 Ngh1 Qg2 Ng3 Qh8 Qe4 Rg4 Bg5 Rf4 Rb2 Qg7 Re2 Qf6 Re3 Qh8 Ng7 e6 Qab5 e7 Bg4 Qh7 Nge6 Qf5 Qa5 Qb5 Bf5 Qb2 Bg4 Bb7 Qf5 Bd5 Qb5 Bg6 Qf8 Bh7 Bc8 Bf5 Qa5 Kc6 Bd7+ Kb7 Qc5 Kb8 Bc8 Bg6 Bf5 Bf7 Bd7 Bc6 Bc8 Bd7 Bg4 Rf5 Qee5 Rf6 Nfe4 Rf4 Nd8 Bf5 Nde6 Bh7 Nd8 Bhg6 Bgd7 Bf5 Nde6 Rc4+
2Rq2r1/3rb1Pb/6Q1/3QNN1q/1b1PBqQn/1KBn2q1/2Q1bbk1/3q1R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 c5 g6 h5 g7 f5 d3 a5 Kd2 h3 Kc2 h2 b6 f3 b5 f4 b7 a4 b6 h4 Ne2 h3 Rg1 h1Q Nd2 c3 Nb3 h2 Nbd4 a3 Nb5 a2 Na7 c4 Be3 f2 Rb1 a1B Rg3 f3 Nf4 Bf5 Qe2 Nd7 Nd5 Nh6 Rg6 Qg2 Rb2 h1Q Rg5 Qg3 Nb5 Be7 Bg2 f1B Bd2 f2 Rb1 Rg8 Qg4 Be2 Nd4 f1Q Ne3 Qff4 Rf1 Ra7 b8Q+ Rc7 b7 Nc5 Bf3 Qh5 Qa8 Rd7 Rg6 Bb2 Rc6 Bh7 Nef5 Ba3 Rc8 Bb4 b8Q+ Rd6 Ne3 Nf5 Qc7 Nh4 Qcc6 Rd7 Nef5 Rd5 Qa2 Rd7 Qd5+ Kf6 Kc1 c2 Kb2 c1B+ Kc2 Bb2 Bc3 Bc1 Qa4 Be3 Bg2 Bf2 Nf3+ Qe5 d4 Qef4 Kb2 Nd3+ Ka2 Bg6 Qc2 Bh7 Ba1 c3 Kb3 Qfg5 e5+ Kg6 Qc1 c2 e6 Qf4 Qb1 c1Q Qc2 Qd1 Bc3 Kf6 Qh3 Qgg3 Qg4 Bed6 e7 Bdc5 e8Q Be7 Qa8 Ke6 Qa2 Kd5 Qeg6 Ke4 Nh2+ Bf3 Qa5 Qc7 Nh6+ Ke3 Qd5 Be2 Be4 Qd8 Re1 Bg1 Nf3 Kf2 Rf1+ Kg2 Nf5 Bf2 Ne5+
1Q1rNbr1/1P2nqR1/1q2Rn2/Nq2B2b/1r5Q/R2q2q1/1P2rkr1/1BK2R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 g4 Ke6 c4 Ke5 e4 a5 g5 h5 c5 d5 b6 f5 b7 f3 g6 Kf4 c6 Kg3 c7 h3 e5 d3 g7 f2 e6 d4 e7 f4 e8Q f3 Qe3 h2 Qa4 h4 Qc6 a4 Qe2 h3 Qd1 a3 Qda4 a2 Qe6 Ne7 Qa7 Rg8 Qc4 Bg4 c8R Qb6 Bg2 f1Q Re8 f2 Qc5 Bh5 Bf3 Nd7 Qb5 Nf6 Qc4 Rd8 Qc6 Qg2 Kd1 d2 Nc3 f1Q+ Kc2 d1R+ Nge2+ Kf2 Qc4 Qg3 Bf4 Re1 Nc1 d3+ Kd2 Re5 Qb8 Re6 Rg1 h1R Nb3 Rh2 Na5 Rg2 Be5 h2 Nb5 h1R Be4 Rh4 Nc7 Qe2+ Kc1 d2+ Kc2 Rg4 Qa4 Qeb5 Rgf1+ Ke3 Bh7 Rb4 Bg6 Rh8 g8R d1Q+ Kc3 Qb1 Rg7 Rg8 Bf5 Qd1 Bh7 Qdd6 Bb1 Ke2+ Kc2 Qdd3+ Kc1 Ke3 Re1+ Kf2 Re3 Qh7 Ra3 Qhd3 Bd6 Re2 Be5 Rb3 Qh4 Rb4 Bc2 Qh7 Rb1 a1Q Bg6 Qa2 Ra1 Nf5 Re6 Ne7 Ne8 Qad5 Bf5 Qg6 Bb1 Qf7 Rd3 Qdd6 Raa3 Qdd5 Rd1 Qdd3 Rf1+
1N1n4/nPbq1Rbr/1QP2B1q/b1Kb4/5n1B/k3BR1B/bn2r3/Qn1N4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kd6 c4 Kc5 e4 Kb4 b6 f5 b7 d5 h5 a5 e5 g5 b3 a4 h6 a3 h7 g3+ Kf3 a2 c5 g2 e6 d3 e7 g4+ Kf2 d2 e8Q f3 Ke3 f4+ Kd4 g3 Qe4 f2 Qe5 f3 Qc7 Qh4+ Qf4 Nc6+ Ke3+ d4+ Ke4 d3 b8B Qh6 Qe5 Be6 Bd6 Bg7 Be2 f1B Na3 f2 Qe1 Nd8 Kd4 Ne7 Bg4 Nc8 Ne2 g1B Nb5 g2 Qd1 Bh2 Nc7 g1N Bh3 Bg2 Qf6 f1N Nc3 Bg3 Rb1 a1B Be7 Ra2 Qe1 d1N Be3 d2 Na6+ Ka3 b4 Bb3 b5 Na7 b6 Bc7 b7 Bf7 Nb8 Ne2+ Kd3 Rb2 Qb6 Ba2 Bh4 Rc2 c6 Bb2 Na4 Bbc3 Nb2 Ba5 Rh2 Bf3 Rf2 Bh1 Rf6 Nf4+ Kd4 Bf3 Na4 Bh1 Nc3 Nb2 Kc5 d1Q Rf7 Nd2 Qg1 Qg4 Rf1 Bhd5 Rf3 Qd7 Qa1 Nb1 Bd2 Rf8 Be3 Re2 Nd1 Bf6 Re7 Rf7 h8B Rh7 Rf7 Bfe5 B8f6 Bec3 Be7 Bg7 Bef6
1QQKb1q1/3B4/5kqq/1n3q1N/2brb1R1/2BR2qR/3PPbR1/r1r1nN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 a5 g4 f3 b6 a4 b5 f4 b7 f2 b6 h3 g5 c3 g6 c2 g7 f3 Rh2 c4 Ra2 c3 Rb2 h4 Rb5 a3 Rc5 a2 Rc4 a1Q Re4 Qa6 Rg4 Nf6 g8R Bd7 Rc4 Be8 Rg3 Nd5 Rcg4 Nc6+ Kf5 Na7 b8Q Nb4 b7 Nb5 Rg8 Nd3 Qa7 Qh6 R8g6 Ne1 Rh1 h2 Rd6 h3 Qc5 Ra1 Bg2 f1Q b8R f2 Bc6 Qg2 Bd7 f1Q+ Nf3 Qg6+ Ke5 Rh4 Qc8 Rd4 Bb2 c1Q Qb3 c2 Nc3 Qc7 Rg1 h1B Rg4 h2 Ne4 Qd8 Nf6 Qg3+ Rf4 Bg2 Nh5 h1B Nh2 Bd5 Rg2 Bc4 Bc3 Qb2 Ra8 c1R Ra3 Qbb1 Qb4 Qh6 Rb3 Qg1 Nf1 Qbg6 Ra3 Qa5 Qb3 Qg8 Rd5 Q3g6 Rfg4 Kf7 Qb4 Be7 Qd6 Bh4 Qdb8 Bf2 Rb3 Rf4 Rd3 Rd4 Rh3 Ke7 Bb2 Kf7 Rbd3 Ke7 Bc3 Kf7 Rgh2 Be4 Rhg2 Qh2+ Rhg3 Qh4 Rh3 Qg3+ Nf4 Na3+ Qb5 Bcd5 Qbb8 Qb5 Be6+ Kg7 Kd6 Bc4+ Kc7 Qf5 Bd7 Kf6 Kd8 Nb5 Nh5+
6kb/N1rB1Nn1/3B1n1q/r1nqB2B/3RRq2/1q2Q1rP/2r1bQPK/q7 b - - 0 1 illegal: No proof kernel
Nb6/2rB1N1b/1r1rb3/N1Prn2q/1nr2Rnq/1R2Q1Q1/PK2b1N1/2B2k2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 g4 Kf6 f4 h5 c4 b5 Kc2 e5 c5 d5 Qf3 b3+ Kb2 h3 Be3 h2 Bg2 d3 Qe2 h4 Qc2 e4 Qc3+ d4 Qc2 b4 Qd2 h3 Qe1 d2 Qf1 d1B Na3 d3 Qe2 d2 Kb1 b2 Nc4 Ra7 Ne5 Rc7 Nc4 Rh4 Qf3 Nh6 Bf1 Be2 Qg2 d1R+ Kc2 b1R Bc1 e3 Qg3 Rd5 Na5 Nc6 Nf3 Ne5 Ne1 Be6 Ng2 b3+ Kc3 Rb2 Rb1 Bd6 Rg1 h1Q g5+ Kf7 f6 Kg6 f7 Kh5 f8Q h2 g6 Nhg4 f5 Rbd2 f6 b2 Ra1 b1R f7 Rb6 g7 Kg5 g8N Kf5 Qe8 Ke4 Qe1 Kf3 f8N Qg5 Qb8 Qh5 Rb1 R2d4 Qd2 Kf2 Rb3 Rd3+ Kb2 R3d4 Nf4 Qe4 Bg2 h1B Bh3 Rc4 Rg2+ Kf1 Nd7 Nh2 Qa7 Ra6 Nb6 Rb4 Nf6 B2g4 Nc6 Bf7 Nc8 Rd7 Ne8 Bb8 Ned6 Rc7 Qd4 Bf3 Bd7 Be6 Rg4 Bhg2 Bd2 e2 Nb6 e1N Bc1 Be2 Nf7 Nc2 Na8 Rbb7 Qc3 Nb4 Ra3 Qc4 Qd3 Be4 Qg3 Bh7 Ng2 Qf4 Re3 Qf6 Rc4 Rhd4 Ra3 Nhg4 Rd3 Qfh4 Qb6 Nc2 Qb3 Nb4 Na5 Rad6 Qc3 Re4 Qd4 Rbb6 Rb3 Re3 Qd2 Rc3 Rd4 Rc4 Qde3 Qf6 Re4 Qfh4 Rf4+
1Q4Nn/nR1R2b1/q1q1b3/B1P1k1r1/2B4Q/rrPK4/R1r3q1/2rR1Nbb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kd2 Ke7 a4 Kf6 e4 g5 h4 b5 h5 d5 c3 f3 a5 b3 a6 f2 h6 g3 h7 g2 a7 g4 Bc4 f1Q Nf3 g1R Bd3 d4 Bc2 g3 Rh4 d3 Qe2 g2 Ba3 b4 Rg4 b2 Ng5 b3 Nf3 Nc6 Bd1 Qb6 Rg5 Be6 Rg4 Nh6 Qe1 Bg7 Nd4 Ke5 Bf3 f5 Rg6 f4 Nf5 Nf7 Be2 f3 Qh4 f2 Ne7 Rhd8 Ra2 Nh8 Bb4 Rdb8 Ke3 d2 Bc4 d1R Ng8 Rc1 Ba5 Rc2 Nd2 b1B Ra1 Ba2 Rd1 b2 Rh6 Bd5 Rd6 b1R Rd7 Rbc1 Rb7 Qa6 Rd7 Qe1+ Kd3 Rb3 Nf1 Be6 Rd2 Qd1 Rb7 Qh5 Rd1 Qh6 Rd7 Ra3 Rb7 Rb8 a8R Na7 Rd7 Rb7 Rb8 Rbb3 Rbb7 Ng6 h8R Qc6 Rh7 Nh8 Rdc7 Bd5 Rf7 Qa6 Rfd7 Qhc6 Rh6 Rh1 Rf6 g1B Rf8 Rh2 Rfb8 Rg2 Ra8 Ke6 e5 Rg5 Qh2 Kf5 e6 Bh1 Qh4 Ke5 e7 Rb4 Bb5 Be6 e8Q Rbb3 Bc4 Re2 Ng3 f1Q Qf8 Qfg2 Nf1 Rf2 Qb8+ Qd6+ Ke3 Qb6 Qh5 Raa1 Nh6 Nc8 Qh4 Qa7 Bb6 Rfc2+ Qf2 Raa2 Ng8 Qa4 Ra5 Na7 Ra6 Qc7 Kd3 Qb5 Ra4 Qa6 Qh4 Raa1 Ba5 Raa2 Qe8 Qcc6 Ra3 Rab2 Ra1 Ra3 Ra2 Rbb3 Qb8+
b3brb1/7r/rNn5/2Pk1NQQ/Bq3qR1/1NPr2b1/3R1n2/BbN1Kn2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 f5 c5 dxc5 e6 Bh6 exf5 Bc1 f4 a4 Ke7 e4 Ke6 g4 d5 e5 b5 g5 f5 g6 h5 a5 f3 g7 f2+ Ke2 f4 a6 f3+ Kd2 b3 a7 b2 c3 h3 Ne2 h4 Ra2 b4 Ra5 d4 Rb5 b3 Qc2 h2 Qd1 d3 Qc2 h3 Nd4+ Kd5 e6 Qd6 e7 Qf4+ Kd1 d2 e8N Nc6 Bd3 f1B Bf5 f2 Nf3 Be6 Nd4 Nf6 g8Q Ne4 Ng7 Bd6 Qh7 Rhf8 Qh5 Bg8 Rb4 Bb5 Ne2 f1N Bd7+ Be5 Rg1 h1R Rg4 h2 Nf5 Ba4 Rb8 Bc7 Rd8 Be5 Na3 b1Q Nc4 b2 Na5 Bc7 Nb3 Bb8 Ng1 Nf2+ Ke2 d1R Qd2+ Qd4 Qdh6 Rd3 Ke1 Bg3 Ne2 Qf4 Qf6 Qa2 Qfg6 b1B Bb2 Qa3 Ba1 Qab4 Qg7 Rg1 Qf6 h1B Qfg5 Bg2 Nec1 Rh1 Qhg6 Rh7 Q6h5 Rb8 a8N Rb6 Re8 Bb5 Re2 Ra6 Rd2 Ne7 Bc8 Be8 Bd7 Nc6 Nb6+ Ke5 Qh3 Na5 Rc2 Ba8 Ba4 Nc6 Qhh5 Ke6 Rd2 Ke5 Nc8 Kd5 Nb6+
RqqQr1B1/qN4Bq/2rbNq2/1PRR1b2/8/n1r4k/KR3P2/Q1r3nn b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 Kg6 c4 Kg5 Kc2+ e3 Kb3 e5 c5 a5 b6 h5 c6 d5 b7 d3 c7 d4 Be2 a4+ Ka2 h3 b4 Kh4 g5 h2 b5 e4 g6 a3 g7 d2 Qf1 d1R Bb2 d3 Nc3 d2 Kb3 a2 Na4 Rh6 Bd3 e2 Nh3 e1R Nb6 e3 Bc2 e2 Rg1 h1Q Bh7 Nc6 b8R Ra3+ Kc2 Bd6 Rg3 Nge7 g8Q Ne5 Qe6 Nf3 Qd5 Nc6 Na4 Na5 Bd4 Rc1+ Kb2 d1Q Bh8 Qd4+ Nc3 Q4f6 Bc2 Ng1 Qg8 Bf5 Ng5 Qc8 Rb1 Nc4+ Ka1 Rb3 Rd3 Na3 Qd8 Kg4 Bd1 h4 Bg7 h3 Rd5 h2 Ra8 Qe4 Ne6 h1N Bc2 Qb8 c8R Qd3 Re5 Qh3 Ne4 Rc3 Rec5 Rg6 Bb3 Qh7 Rd5 Kh4 Qg2 Rh6 Qg6 Kh3 N4c5 Rh4 Nc7 Rf3+ Rd4 Nc4 Qf7 Re4 Qdf8 Rc2 Qh8 Rec1 Nb7 e1Q Qd8 Re8 Qg8 Qee6 Qf8 Bf4 Qa3 Qc6 Qa5 Bd6 Qc3 Qc5 Rd3 Qca7 Rd1 Na3 Bg8 Qe6 Rd5 Qd7 Ne6 Rd3 Rc6 Qdc8 Qcf6 Rc4 Kb2 Rf3 Qc3 a1Q+ Kb3 Ra4 Rc7 Ra6 Rc4 Rc6 Rcc5 Bd3 Qcf6 Qd4 Ka2 Bf5 Rb3 Qdh4 Qd4 Qf6 Qa1 Rfc3 Rb2
3rb1qB/1b1QQ2b/B2rqR1P/1nR2q1r/B1rb2N1/7B/2r2P2/2k1N1Kn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 c4 Kf7 h4 Kf6 a4 Ke5 c5 Ke4 f6 e5 h5 g5 c6 d5 f7 b5 a5 d3 a6 b3 c7 d2+ Ke2 b4 a7 d4 Bh3 d3+ Kf1 g3 Rh2 g4 Ba3 b2 Qc2 d1R+ Kg2 b3 Be7 Na6 Nf3 Nf6 Qc1 d2 Ra4+ Kd3 Bd6 e4 Ra2 e3 Nh4 e2 Na3 b1Q Ra1 e1Q Nc2 b2 Rh1 Qe6 Be5 Ne4 Bd6 Bb7 c8B Nc7 Bb4 Nb5 Nd4 Bc5 Rg1 Qg8 Ndf3 Bd4 Kh1 g2+ Kh2 Ng3 f8Q Nh1 Bd7 Rd8 a8B Ke2 Bc8 Qbf5 Qc6 b1B Ne1 Bc2 Rf1 g1R Bc3 Rg3 Bb2 Rc3 Qe7 g3+ Kg1 g2 Ng6 Rc4 Qcd7 Rc1 Rb1 d1B Ne5 Kd2 Ng4 Bd3 Ra1 R1c2 Ra6 Rh6 Ba1 Kc1 Rd6 Rg6 h6 Rg5 Rc6 Rh5 Rb6 Bdf3 Bc3 Bbc6 Ba6 Bb7 Rd6 Bfc6 Ba1 Ba7 Bh8 Bd4 Qc7 Be8 Qcd7 Qfe5 Rb6 Bh7 Rc6 Q6f5 Rg6 Qee6 Rf6 Bc8 Bf3 Bb7 Bd1 R2c3 Kh2 g1R Ba4 Rgg3 Rg1 Rgd3 Rg2 Rc2 Kg1 Ba1 Rg3 Rd6 Re3 Bc3 Re5 Bd4 Rc5
5b2/R2QqbrB/1n1qNq1P/1r2B3/N1k5/N5q1/1r1bKPR1/q2n1QbN b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 b4 Kf7 c4 Ke6 h4 d5 c5 a5 c6 g5 c7 d3 h5 g3 b6 a4 h6 g4 b5 e3 b7 d4 b6 Kd5 Rh4 e5 Nc3+ Kc4 Bg2 e2 Nf3 e4 Ng1 a3 Qd2 a2 Bf3 g2 Qf4 g3 Bh5 Ne7 Rg4 Nd7 b8Q Nf5 b7 Rh7 Rg5 Ra5 Rg6 Rg7 Bf3 Rb5 Rg5 Ne3 Nd5 Nb6 Qa7 Nd1 b8N Be6 c8N Bf7 Nd7 Qf6 Nc5 Rb2 Nc7 Rb5 Nh3 g1B Na4 g2 Ne7 Rb2 Nf5 Rb5 Rb1 a1Q Ng3 Rb2 Qh4 Rb5 Kd2 e1R Bb2 e3+ Kc1 e2 Kd2 Qa3 Be4 Qae7 Nh1 Rf1 Ra1 e1B+ Kc1 Bc3 Bh7 d2+ Kc2 Re1 Nf4 Re2 Nfe6 Ba5 Qh3 d3+ Kb1 Bh2 Ra3 g1Q Qf1 Qg3 Qb7 Bb4 Be5 Bg1 Qc8 Nb2 Qd7 d1Q+ Ka2 Qd2 Kb1 Nd1 Ra1 Qa2+ Kc1 Rb2 Rg6 Qgh4 Rg2 Qg3 Nd5 Bc3 Nb4 Qa3 Nc2 Ba5 Nc3 Qad6 Kd2 Bb4 Ra7 Ba5 Ke1 Bb4 Qe2 Ba5 Kf1 Bb4 Na4 Bd2 Na3+ Kd5 Ra6 Bb4 Nc2 d2 Nd8 Nc3 Qe1 d1Q Ne6 Qa1 Ra7 Nd1 Ke2 Kc4 Qf1 Bd2 Na3+
rq2rR2/k2N3r/1b1Q1P1R/1qr4q/R1B1nbb1/B4Qb1/1r1PK3/N3n2R b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kd7 g4 h5 b4 e5 f5 c5 b6 Kc6 b7 Kb6 g5 a5 g6 c3 b5 c4 g7 c2 Nc3 e3 Nd5+ Ka7 Bd3 h3 Ba3 c1Q Be4 h2 Nf4 c3 Ngh3 a4 Bf3 c2 Ng6 e4 Ng1 h4 Ne7 e2 Kf2 e1B+ Ke2 h3 Kf1 e3 Nd5 Nc6 b8R Bg3 Bg4 Nb4 Be2 Rh7 Nc3 Bc5 Bd3 Qb1 Bb2 c1R Bc4 a3 Nf3 a2 Na4 Nf6 g8R Nd3 Nd4 Ne1 Rg4 Ne4 f6 Bb6 Rh4 Bg4 Nc5 Qc7 Rc8 Qb8 Qf3 Rc2 Ba3 Rb2 Rh6 Rc7 Na6 Rc5 Ke2 Bf4 Nc2 Bg3 Rg1 h1Q Rf8 h2 Rf1 Qg2+ Rf2 Qh3 Rf1 Qh5 Rh1 Qc1 Rb1 a1B Nab4 Bf4 Nd3 Bg3 Ne5 Bf4 Rg1 h1R Nd7 Bg3 Nd4 Qc3 Nc2 Qb3 Rf1 Ra2 Rg1 Bae5 Na1 Bef4 Rb2 Qa4 Rb4 Rb2 Rf1 Rh3 Rh1 Qf7 Rg6 Rh7 Rgh6 Qh5 Ba2 Nc2 Rb1 Qd6 Rh1 Bc7 Ne5 Ng5 Kf1 Qb6 Nd7 e2+ Kg2 e1R Bg8 Re3 Kf1 Ree5 Bd5 Ne4 Ke2 Qb7 Bg8 Ree8 b6+ Ka6 Bd5 Qb5+ Bc4 Qa7 b7 Ne1 b8Q Bb6 Qe5 Qb8 Qd6 Ka7 Ra4+
1qQ5/n2n2r1/BR1Pn2b/1NbB1n2/R3BB2/1bP1q2r/1K1Q1r2/3k1rrN b - - 0 1 illegal: No possible last move, all moves rejected
1N2n3/1qb3P1/1Q1P2b1/2RnbRN1/3rRB2/KRn2Bbr/5rb1/Q1rq3k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Ke6 g4 Ke5 g5 c5 g6 h5 g7 f5 d3 a5 Kd2 h3 Kc2 h2 Kb2 c3+ Ka3 f3 b6 h4 b5 h3 b7 f2 b6 a4 Bd2 c4+ Ka2 a3 Be3 c2 Bg5 c1B Be7 Kf4 e5 Kg3 e6 c3 d4 f4 d5 f3 Qd2 c2 Bg5 Ne7 Bd3 Kg2 Qa5 f1R Be4 Nd7 b8R Nf6 b7 Ne8 Qb5 Rf2 Bf4 Ra4 Be3 Rd4 Bg5 Bf4 Qa5 c1R+ Kb3 a2 Nc3 Bc7 Bf4 Rh4 Rb1 a1B Nge2 Qd6 Rf1 h1Q Ra8 h2 b8Q Rh3 Qbb6 Qc6 Ka3 Qb7 Ra7 Qg1 Rb4 h1N Rb3 Ng3 d6 Nd5 e7 Bf5 Ra8 Bg6 Rc8 Kh1 Qa4 Rd3 Nd4 Ne2 Nc6 Rd4 Nb5 Nec3 Nb8 Nef6 e8R Be7 Qa8 Bed8 Re5 Ne8 Re1 Bg5 Rf5 Bh4 Re3 Bg3 Qaa7 Rc4 Nd4 Qd1 Ne6 Rd4 Qaa5 Rg2 Qaa7 f2 Ng5 f1B Qaa6 Bh7 Bf3 Bg6 Be2 Rgh2 Re4 Rf2 Bf3+ Bg2 Qaa5 Bd8 Rc4 Bc7 Rc5 Na2 Rbb5 Rd3+ Rb3 Be5 Qc3 Rd4 Qb2 Nac3 Qa1
Nk1B1b2/1nq2Pb1/K3b1Nr/1N1r1n2/2b5/3PNR1B/1Q1qr1b1/2q1Rq1Q b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 f4 a5 b4 c5 g4 Kc7 d3 e5 f5 h5 g5 c3 f6 c4 f7 e3 g6 h3 g7 h2 Qe1 e4 Qh4 c2 Qe7+ Nd7 b6+ Kb8 b5 h4 b7 c3 Nd2 h3 Ra4 Nh6 g8N Nf5 Qb4 Rh6 Qc5 Qc7 Qc6 Nc5 Nc4 Be6 Nf3 Ra6 Bd2 c1Q Nd4 c2 Ne7 Qa1 Ra2 c1Q Ng6 a4 Ba5 a3 Bg2 Qac3 Re1 h1B Qd5 h2 Bh3 Rd6 Rc2 Qc8 Bd8 a2 Rb2 a1B Rb1 Ka7 b8N Nb7 Nd7 Qc7 Ndb6 Kb8 Na8 Bg2 b6 h1B Nb5 Bb2 Qc6 Rd5 Rf1 Qa5 Rf3 Bbg7 Ra1 Qg1 Re1 Qf1+ Kd1 e2+ Kc2 e3 Kb3 Qc3+ Ka4 Qd2 Ra1 e1Q Rd1 e2 Ne3 Qeg3 Re1 Qgd6 Qc1 Qdc5 Qa1 Nbd6 b7 Qcc1 Rd1 e1R Qb2 Re2 Re1 Qdc2+ Kb4 Q7c6 Ka5 Qc7+ Ka6 Q2d2 Rf4 Rd4 Rf2 Bgd5 Rf4 Bc4 Rf3 Rd5 Qe5 Qg2 Qh2 Qf1 Qg1 Bg2 Qh2 Nd4 Qh1 N4f5 Rd1 Qc5 Re1 Qc8 Kb6 Qd7 Nd4 Qe7 Kc6 Ka7 b8Q+ Ka6 Qb2 Ka7 Nb5+ Kb8 Kb6 Nb7 Ka6 Qd7 Qb3 Qc7 Qb2
2qn1K2/3P1Rrb/b4QN1/2n1Q1B1/1r1n2Bn/k1b2P2/2qNbQ2/n2q1R1Q b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 h5 Kf4 a5 Kg5 e5+ Kg6 a4 Kf7 a3 b4 a2 g4 e3 d4 c3 g5 e2 g6 e1Q b6 c2 b7 e4 d5 c4 g7 e3 b5 Kc5 b6 Kb4 d6 c3 d7 e2 Bb2 c1Q Na3 c2 Rb1 a1N Bg2 h3 Nc4 h2 Nd6 h4 Qd3 h3 Bc3+ Ka3 Qd1 Na6 b8Q Nc5 b7 Nh6+ Kg6 Rg8 Nf7 Ra4 Nf3 Rb4 Qdd6 Qed1 Qg3 e1N Nd2 Nf3 Nh8 Nf7 Rf1 h1B Bf6 h2 Qbf4 Qc7 b8Q Ba6 Qe4 Qc8 Bh3 Nd8 Bg4 Bg2 Qge5 h1B Qbd6 Nh4+ Kh7 Qb2 Bg5 c1N Ng6 Nc1b3 Qdf6 Qbc2 Qe3 Ba8 f3 Be4 Qf2 Bg2 Re1 Nd4 Re2 Qh1 Rf1 Bd6 Kh6 Bc7 Ree1 Ba5 Kh7 Bed3 Re4 Bh3 Rf4 Be2 Rf5 Rb1 Kh6 Bc3 Kh7 Rb4 Rf4 Re8 g8Q Re7+ Kh8 Rf7 Qh7 Qg1 Kg8 Rg7+ Kf8 Qh1 Bh5 Be6 Bg4 Bg8 Qfd6 Qg1 Rf7 Qh1 Qh5 Bh7 Qdf6 Qg1 Rb1 Qgd1 Rc1 Qb1 Qh6 Qdc2 Rf1 Qbd1 Qh5 Nhf5 Qh3 Nh4 Qh1
3N3q/1b1Pr3/1K1bq2P/2R1rqnB/rRbr1B2/2n1Q1q1/QN3R1k/5R1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Ke7 e4 Kd6 b4 Ke5 h4 c5 h5 g5 h6 f5 b6 a5 b5 f3 Ke3 a4 b7 f2 b6 g3 d3 g2 Rh2 a3 Qc2 g4 Nc3 f4+ Ke2 a2 Na4 f3+ Ke3 c3 Rh3 g3 Qd2 c4 Rh4 c2 Qb4 c3 Nb2 Qe8 Ne2 g1R Qa4 g2 Rh2 Nf6 Rh4 Nbd7 b8R Rh1 b7 g1Q Qa6 Rh7 Rg4 Bd6 Rg7 Nf8 Nd4 Qe6 Rf7 Qg3 Be2 f1B Rb1 a1Q Qa2 f2+ Bf3 Qe7 Ne6 Ra4 Nd8 Qe6 Bd2 Be2 Rf1 c1R Ra8 c2 b8R Rb1 Rb4 c1R Ra5+ Rc5 Rab5 Rd5 Rc5 Rd1 Bc1 Bb7 Bd2 Qg2 Bh5 Rg7 Bc1 N8h7 Rf8 Re7 Bd2 Ne8 Rf3 Nc7 Bc1 Nb5 Bd2 Nc3 Bc1 Bc7 d4+ Kd6 Bd2 Re5 d5 Ng5 Kd4 Bd3 Be3 Qg3 Bf4 Rd2 Rc1 f1Q Re1 Kd7 d6 Qfh3 Ref1 Qhf5 Rd5 Bc4+ Kc5 Bb8 Kb6 Rd4 Rc5 Qeg6 Nc6 Ke6 d7 Bd6 Nd8+ Kf6 Rd3 Qe6 Re3 Qh7 Ref3 Qb1 Bg6 Qh8 Bh5 Red5 e5+ Kf5 Bf7 Kg4 Bg6 Kh3 Bh5 Qf7 e6 Qe4 Rbb5 Qef5 Rb4 Re8 e7 Re5 Rd1 Kh2 Rdf1 Rg8 e8Q Rg7 Qe6 Qfe8 Rbb5 Re7 Rb4 Red5 Qe3 Rde5 Rg1 Qef7 Rgf1 Q7e6 R3f2+
3Qr1RR/1PqnnK1Q/b3R3/6B1/rqB1NP2/1Rb1r2r/3N1n1k/1r4qn b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kg6 b4 h5 f4 a5 c4 d5 g5 Kf5 b6 Kg4 g6 Kg3 b5 e5 b7 d3+ Ke3 d4+ Kd2 e3+ Ke1 e4 b6 a4 g7 h3 c5 a3 c6 h2 c7 h4 Ra2 e2 Kd2 e1R Bg2 h3 Qb3 Nd7 b8R Ne7 g8R+ Bg7 Qe6 Ba6 c8Q Qc7 b7 Re3 Rb2 a2 Qe5 a1R Nc3 Ra4 Nf3 Rh6 Rd1 h1N Qh5 h2 Rb3 Nf2 Ba3 h1N Qd8 Rh8 Qf7 Rh3 Rc8 Rb8 Re1 Ra8 Bf1 Rb8 Ne5 Kh2 Nc4 Be5 Qh7 Ra8 Kc1 d2+ Kc2 d1R Nd2 Rb1 Bc4 Rb8 Bd6 Bg7 Be5 Ra8 Bf6 Bh8 Rb2 d3+ Kb3 Rb8 Bg5 Bd4 Nb5 Bc3 Nd6 Ra8 Rh8 Rb8 Qdg8 Ra8 Qd5 Rb8 Rcg8 Re8 Qd4 Rg3 Qf6 e3 N6e4 e2 Qb6 Qc6 Qd8 Qc7 Rg1 e1Q Rg6 Be5 Re6 Re3 Rg3 Bd6 Kc3 Bb4+ Kd4 Ba5 Nb3 Qb4 Nbd2 Rf1 Rb3 Rfa1 Nb1 d2 Rg1 d1Q+ Nbd2 Rb1 Rg4 Nc8 Kd5 Qc1 Rh6 Ne7+ Ke6 Qg1 Kf7 Qbc5 Re6 Bc3 Bf6 Q5a5 Rgg8 Qb4 Bg5
1K2n1bN/2N2q2/4nb1N/q2b1rnn/k2NPr2/8/RQBrRPqq/5QB1 b - - 0 1 illegal: No possible last move
2nkrbK1/2Rn1N1R/Qq1Qn3/3P2R1/N7/R1rbP1q1/2qqB2B/r4r1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 a5 g4 h5 d4 c5 b4 a4 d5 c3 b6 c4 g5 c2 b7 c3 b5 h3 e3 h4 g6 a3 g7 h2 b6 h3 Bd2 c1R Bg2 a2 Qc2 Nd7 b8Q Ne7 g8R Ba6 b7 Nc8 Qa4 c2 Qb3 Qb6 Bc3 Kd8 Rg5 Bd3 Kf2 f3 Kg3 f2 Kf4 f1Q+ Bf3 Qe1 Qb5 Qd2 Be5 Ra3 Bd1 Rc3 Be2 Re1 Bd6 c1Q Nf3 Qcc2 Qa6 Rd1 Ne5 Rg8 Kf3 f4 Kg4 f3 Kh5 f2 Nf7+ Ke8 Bg3 f1R Qd6 Rde1 Nh6 Kd8 b8R Rc1 Rb7 Rcd1 Rg1 h1Q Rc7 Qg2 Rh1 h2 Bf4 Qg3 Be5 Rc4 Nc3 Rc1 Na4 Rc3 Rb1 a1N Rb3 Rh8 Ra3 Nb3 Bf4 Nd4 Be5 Nf5 Kg6 Ra1 Kf7 Nd4+ Bf4 Rh7+ Kg8 Re7 Rg1 h1B Nf7+ Ke8 Rg2 Re5 Rh2 Ne6 Rh7 Re4 Nh8 Kd8 Be5 Nc5 Bf4 Re8 Be5 Ne6 Bf4 Qh4 Bh2 Qg3 Nf7+
rrk4Q/2N2bbP/2q4B/3nr3/q5n1/qRr2RbK/2BR2QP/b2nR1N1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 a4 e5 f4 d5 Kf2 Kd7 Kg2 g5 c4 b5 a5 b3 a6 d3 c5 e3 f5 d2 a7 b2 f6 e2 h6 e1B h7 g4 f7 d4 Qf3 d1N Qf2 g3 Qf6 b4 Qh6 d3 Qa6 d2 Bd3 e4 Nf3 e3 Qh6 e2 Qg6 b3 Bb5+ Nc6 Rg1 Bg7 f8Q Qf6 Qh5 Nh6 Ba6 Nb4 Rf1 Qc6 Qh3+ Ng4 Bd3 Nd5 Na3 b1Q Nb5 b2 Ng1 Qa2 Nc7 b1R Ne8 Rbb8 Bc2 Qa3 Rf3 Bb7 Rb1 Kc8 Rbb3 Bf2 Qf6 e1R Qc3 Re5 Qd4 Qe6 c6 Qh6 c7 Qc6 Qa1 Rf8 Qd4 Rf4 Qc3 Rc4 Qa1 Rc3 Qb2 Kd7 c8R Ba6 Qa1 Bc4 Rc7+ Kd8 Re7 Kc8 Re6 Nb6 Rd6 Bf7 Rd3 Nd5 Rde3 Nb2 Re1 d1Q Bh6 Bd4 Qh4 Bf2 Kh3 g2 Qg5 Qd4 Qg6 Nd1 Qb2 Bg3 Qf6 Bf8 Qh8 Bg7 Qa2 Qda4 Qb2 Rb7 Qa2 Rab8 a8R Ra7 Qb2 Ra6 Ra7 Ra5 Rd7 Raa8 Ne2 g1B Rd6 Nb4 Rd2 Bd4 Ng1 Nd5 Qa1 Rc4 Ree2 N1c3 Qf1 Nd1 Re1 Ba1 Qg2 Rc3 Nc7+
1b4R1/P3B2K/1NNb4/n1rr2rB/qQbb2P1/3B1R1r/1n4qB/2k1qnQ1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 c4 Ke6 g4 Ke5 a4 Kf4 g6 d5 g7 b5 a5 h5 c5 e5 a6 h4 f3 e3+ Kd3 h3 c6 b3 a7 b2 c7 e4+ Ke2 h2 Ra6 d3+ Ke1 d2+ Ke2 d4 Qe1 d1R Ra3 b4 Bd2 b3 Ba5 Ne7 g8Q Nd5 Bg2 d3+ Kf1 d2 Ke2 Nc6 Bf1 Qd7 Ra2 Bd6 Ra1 Rh3 Bb4 Na5 Na3 b1R Nc4 b2 Ra3 Ba6 c8B Qa4 Be6 Rbc1 Bf7 b1Q Qb8 Qbc2 Qb7 Rg8 Bh5 Rg5 Bc5 Bb8 Be7 Qa2 Rd3 Qb2 Nb6 Rc5 Qf2 Bc4 Qe1 Rb1 Qc1 Qe5 Qe1 d1N Qb4 Nb2 Qa6 Kg3 f4 Rd1 f5 Kf4 f6 Bd6 f7 Rd2+ Ke1 e2 Kf2 Ne3 f8B Bb8 Rc3 Rdd5 Nf3 Qe6 Rd3 e1B+ Ke2 Bc3 Nd4 Bd6 Nc6 Bd4 Kd2 Bb8 Rc3 Bd6 Bd3 Nf1+ Ke2 Bb8 Bd6+ Qe5 Bfe7 e3 Rb3 Nd2 Rc1 h1Q Qab5 Nf1 Qe1 Nd2 Qg1 Nf1 Qb4 Qe4 Ke1 e2 Rc2 Ne3 Kd2 Qg2 Rc1 Kf3 Rd1 Qe6 Bh2 Nf1+ Kc2 e1B+ Rd2 Qg3 Rf2+ Ke3 Rf8+ Bf2 Rc8 Qg2 Rg8 Qa1 Bdg6+ Ke2 Rf3 Bde5 Bf5 Bed6 Kc3 Kd1 Bd3 Bh4 Bb1 Kc1 Bd3 Rde5 Kd4 Qa4 Bf6 Qe8 Be7 Red5+ Ke4 Bhg3 Qb3 Bge5 Qb4 Rg7 Kf5 Bd4+ Ne5 Rg5+ Kf6 Rf5+ Kg7 Rg5+ Kh8 Qd1 Kh7 Qea4 Nc6 Qdd2 Bc2 Qe1 Bd3
NkB1R3/1br4r/3KQ1R1/q1nn1N1b/3P1r1b/3bP1Bn/nn2n3/1Q3NN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 Ke5 f5 b4 c5 g4 Kc7 d4 f3 e3 f2 g5 a4 g6 a3 g7 f4 Qg4 a2 Bd2 c3 Nh3 c2 Qd1 c1N Qc2 c4 Nc3 f3 Ne4 c3 Bc4 f1N Bb3 f2 Bc4 Rh7 Qd3 c2 Bc3 Nd2 Nc5 f1B Na4 Ne7 g8N Ne2 Qe4 c1N Nf6 Nd5 Nb6 Bb7 Rb1 a1R Ng1 h3 Ng4 h4 Nh2 R8a7 Na8+ Kc8 b6 Be7 b5 Na2 Qg6 Na6 Qe6+ Kb8 Bd3 Bg5 Bf5 Nc5 Rb4 Rc1 Ra4 Rf7 Ra6 Rc2 Bg4 Rf4 Bb4 Na4 Ba5 Ne4 Be1 Rc7 Bg3 Nb2 Bf5 Nc5 Bg4 Bc6 b7 Be8 Rd6 Bh5 Bf5 Bg2 Nf1 h2 Ra6 h3 Rc6 Qc8 Kd6 Be4 Rb6 Bd3 Rc6 Ra3 Rb6 Bh4 Bg4 Ka7 b8N Qa6 Rc6 Qa5 b6+ Kb7 Bf5 Rh7 Rc8 Rb3 Nc6 Rc3 Ne7 Rc1 Rc6 Kb8 b7 Rc3 Bg4 Rc1 Nf5 Rc2 Nf3 Rc4 Rg1 h1N Rc7 h2 Re7 Nf2 Re8+ Bd8 Rg2 h1B Ng1 Nh3 Qg6 Ka7 Qe6 Bh4 b8Q+ Ka6 Qb4 Ka7 Qe1 Rc2 Qb1 Rc3 Re7+ Kb8 Re8+ Bd8 Bf2 Ne7 Qd7 Ne6 Ng7 Rc7 Bf5 Nc5 Rg6 Bd5 Bg3 Bb7 Be6 Nd5 Nf5 Bc2 Qf7 Bd3 Bc8 Bh4 Qe6
b3b2k/3rq1nP/R2BbP1r/b3rn2/RB5Q/n1N5/1nbN2b1/1B2B1KQ b - - 0 1 illegal: No proof kernel
n1QRN1q1/1rP4R/2n1B1b1/2R1k2P/N3nb2/1Q2B1br/1r1rrRK1/1nr5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 h4 Kf6 e4 g5 c4 a5 b4 d5 b6 d3 b5 f3 c5 d4 c6 a4 c7 a3 b7 d2 b6 d3 Qc2 d1N+ Kg3 a2 Qc5 f2 Bb2+ Nc3 Qb5 d2 Qe8 d1R Kg2 g3 Be2 f1N Bb5 g4 Ba3 Na4 Bc4 Rd2+ Be2 Ra7 Bb4 Nc6 b8Q Bd6 b7 Nb6 Qd7 Ke5 Ba5 f5 Qg7+ Nf6 Nh3 f4 Qf7 f3+ Kg1 g2 Ng5 Qg8 Ne6 Na8 Ng7 Bf5 Qb3 Bg6 Ne8 Rb2 Bb4 Nd2 Nc3 Nb1 Bc5 f2+ Kh2 g1R Na4 f1R Qc8 Rh5 b8R Rb7 Be3 g3+ Kh3 g2 Bg4 Rh8 Be6 Rff2 h5 Rfe2 Rh2 Rc1 Kg3 g1B Rf2 Bh2+ Kg2 Nc3 Rb1 Bf4 Ra1 Rh1 Rc1 a1R Rc2 Nb1 Rc5+ Nd5 Qd7 Rc1 Rd8 Ra3 Qc8 Bg3 Qa2 Rd3 Qb3 Rh7 Rd7 Rf7 Re7 Rf3 Rh7 Rdd2 Bd4+ Kf4 e5 Nf6 Be3+ Ke4 Bf7 Bf4 e6 Rh3 e7 Bg3 Be6 Bdf4 Rc3 Ke5 Rc5+ Rd5 Nd6 Ne4 e8R Rh4 Rd8 Rh3 Rc3 Rd4 Ne8 Rdd2 Rc5+
b2nN2B/RP1rR3/4R1K1/rbQPb1nN/2Br2b1/1r4q1/R3nk2/bQ5b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 a5 e3 f5+ Ke5 h5 e4 c3 d3 c2 b3 a4 g5 a3 g6 a2 g7 f3 b6 f2 b7 f4 Nd2 f3 Bb2 c1R Qe2 h3 Rb1 a1B Rh2 h4 Qd1 Nc6+ Kf4 Nh6 b8Q Rh7 g8R Bg4 e5 Rc3 b4+ Kd4 e6 Rd7 b5 Nf7 b6 Ng5 e7 Bg7 e8R Ra5 Qa7 Qb8 Re3 Nd8 Re1 c5+ Re5 c4 Be2 f1R Ne4 f2 Nd6 Bh8 Qc1 Rd1 Rg6 f1B Ne8 Qc7 Rf2 h2 Nh3 h1B Re6 Ba8 Re7 Qd6 Qc7 Qg6 b7 Bf6 R5e6 Bg7 Ba3 Rb3 Bb2+ c3 Qc2 Rd2 Re1 Bh8 Qb1 Qg7 Ra6 Rd1 Ra7 Qg6 Ba3 c2 Bd6 c1N Be5+ Kd5 d4 Qg8 Ba6 Bb5 Ra2 Rdd3 Nf2 h3 Nh1 h2 Ng3 h1B Nh5 Bg7 Qd6+ Kc4 d5 Rd4+ Re4 Bh8 Bg7 Ne2+ Ke5 Kc3 Kf6 Kc4 R4e6 Kc3 Qe1+ Kc4 Qc5+ Kd3 Ke5 Ke3 Kf6+ Kf3 Qb1 Kf2 Kg6 Qf7+ Kh6 Qf3 Kg6 Qg3 Be5 Ba4 Bc4 Bb5 Bf4 Be5 Bd2 Ne4 Bh6 Ng5 Bg7 Rd6 Bf6 Rd7 Bh8
1n3K2/1q2nQ1B/BRB3br/1N3rQ1/1P3n1B/b1rbP3/N3kR1n/rr5b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 Kg4 c4 h5 g3 a5 c5 f5 b6 d3 b7 d2 e3+ f3 c6 a4 b3 f4 c7 h3 Bc4 h4 Qf1 d1R+ Bd2 f2 Bb5 h2 Nc3 a3 Bc6 h3 Nb5 f3 Rb1 a2 Na7 a1R Ke5 d5 Qg2 f1R Nb5 d4 Rb2 d3 Rc2 f2 Be8 Qd7 Ne2 Rh6 Nec3 Ba3 b4 Ne7 Be1 d2 Na2 Rdb1 Rc6 d1B Rb6 Be2 Qd5 Ra7 Qf7 Ra4 Rg1 h1B Rg2 Bd3 Rh2 Rh8 Kf6 Kf3 Kg7+ Ke2 g4 Rh6 g5 Qd5 g6 Bcf5 Rg2 h2 Kf8 Qe4 g7 Bg6 c8B Ra5 Nd6 Rf5 g8B Rb3 Nb5 Rc3 Bh7 Rg1 Bd2 Rgb1 Be1 Qd5 Bc6 Qe4 Rg4 f1N Rf4 Bf3 Bh4 h1N Bd5 Nh2 Bg5 Nbc6 b8Q Nf2 Bh4 Nh3 Ba6 Bh1 Qd6 Qf3 Qdf6 Nb8 Qg5 Qg2 Rf1 Nf4 Ba8 Qd5 Rf3 Qd7 Bc6 Qb7 Rf2+
QNnnBb2/1qnN1rBr/5Q1q/qb1P1QPk/5q1Q/5nnK/1R1n4/5R2 b - - 0 1 illegal: No possible last move
bRqB1K2/1rP1P1N1/2n3b1/b2B2kb/R1rr1Qb1/7Q/3q3b/rBN3Bn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 Kd5 a5 e4 h3 b4 a4 c4 a3 g4 f3 b6 f2 b5 h4 b7 a2 b6 h2 c5 d3 c6 h3 c7 d2 e5+ Kg5 e6 f5 Qe1 f4 Bg2 f1Q Bf3 d1B Qa5 Qd3+ Ke5 d5 Bb2 d4 Qb4 Qd2 Be2 f3 Na3 d3 Nc4 f2 Ne3 f1R Nf5 Rh4 Ng7 Ne7 Qa3 Bd7 Kd6 Nbc6 b8B Qc8 Ba7 Rb8 b7 Be8 Bf3 Bg6 Bd5 Rf4 Ne2 Rd4 Nc1 Bf3 Rf1 h1B Qb3 Rc4 Bg1 h2 Rb1 Bd1 Rf4 a1B Bbd4 Bc3 Bf6+ Kh6 Rd4 Ba5 Re4 Bg2 Qc3 h1R g5+ Kh7 Qe5 Bg4 Qf4 Rd4 Rb4 B2f3 Ra4 Rc4 Re5 B4h5 Be4 Bfg4 Rb5 Nf5+ Kd5 Ng3 Bd8 Bd6 e7 Qe1 Rb2 d2 Bb1 d1B Rb5 Bdc2 Rb2 Bcd3 Rb5 Qd2 Rb6 Ra8 b8Q Ra7 Rb2 Be5 Qb3 Rb7 Qc3 Ra7 Rb8 Rb7 Bc5 Rf1 Bg1 Nh1 Qa3 Bd4 Kd6 Bde4 Qag3 Bd5 Qh3 Bf2 Ne6 Bg3 Ng7 Nb4 Ke5 Bh2 Kf6 Nc6 Qff3 Bge4 g6+ Kh6 Qf2 Bef5 Qfg3 Bg2 Kf7 Kg5 Kf8 Bge4 Ne8 Bf3 g7 Bfg6 g8B Rd1 Ng7 Re1 Nb3 Rec1 Bd5 Bfe4 Bc2 Ra1 Nc1 Rbb1 Nb3 Ne5 Qhg2 Rh3 Be6 Ba8 Bd5 Nc6 Nc1 Rb7 Bb1 Rd4 Q3f2 Rc3 Qh3 Rcc4 Qf4+
4NnQB/1P2q2B/5qNK/1r1bQ3/b3n3/b2rQPn1/3nq1RR/1kb1Q1q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 b4 Kf6 g4 Ke5 c4 a5 c5 d5 c6 h5 b6 h3 g5 d3 Ke3 h2 f3 d2 b5 d4+ Ke2 h4 b7 d3+ Ke3 a4 g6 h3 b6 a3 c7 a2 g7 Nf6 g8Q Ra3 Nc3 Rh5 Qgb3 Nbd7 b8Q Bb7 Bg2 Bd5 Rb1 a1N Qbc2 Nb3 Qf1 d1B b7 d2 Kf2 Kd4 Kg3 e5 c8Q e3 Qb5 e4 Kf4 e2 Qcc7 e1B Na2 e3 Ra1 e2 Qba5 Ne4 Q2c5+ Kd3 Nc3 Kc2 Bb2 Qf6+ Kg4 Bd6 Qg8 Nf8 Qe3 Bh4 Rb1 e1Q Bf1 Bg5 Nge2 Bc5 Rg1 h1N Qe5 h2 Nf4 Nhg3 Ng6 h1Q Rg2 Qg1 Nb5 Bd6 Ra1 Bf4 Ra2 Kb1 Ba1 Bc2 Bc4 d1Q Nc7 Qde2 Ne8 Nbd2 Bd3 Rb3 Bb2 Ba3 Rh2 Rb5 Ba1 Rh7 Bd4 Rd7 Ba1 Nh1+ Kh5 Rd8 Bb2 Bh6 Ba1 Nhg3+ Kg4 Nc4 Ng7 Qb4 Qee6 Bc6 Qd6 Ng5 Qee6 Qfe5 Nh8 Qef1 Bh7 Qbb2 Ng6 Ba4 Qb8 Rd3 Ne8 Bd5 Qeb6 Qb4 Rag2 Qbe7 Q6a7 Qd1 Qe1 N5e4 Bc3 Q5d6 Bh8 Qdf6 Qe5 Bhc1 Qad4 Qe2 Qe3 Nf5 Kh5 Nfg3+ Kh6 Ncd2 Q5g5 Qf5 Qh5 Qff6 Qe5
4rr2/1RBQR2K/rR4N1/4b1q1/2BnqkNP/2p1R2q/P1bQr3/4nb1r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 e4 Kd6 h4 Ke5 d3 c5 d6 f5 d7 g5 Rh2 b5 Rh3 c4 Bb2+ c3 Kg2 g3 Kf3 b3 Qe1 g2 Qg3 g4+ Ke2 b4 Na3 Nh6 Bc1 b2 Rb1 b3 Qf3 g3 Qf2 f3+ Ke3 Nc6 Qc2 f2 Ne2 g1R Nf4 g2 Qd2 Ra6 Nc2 Qg5 d8R Bg7 Rd6 Nb4 Rb6 Rh1 Kf3 g1Q Ne3 Qh2 Ng4+ Kd4 e5 Nc2 e6 Re8 e7 Be5 Ng6 f4 Nh8 Nf5 Be2 f1B Rb7 Kd5 d4 Ke6 Ke4 f3 Bb5 f2 Re3 Ne1 d5+ Kd6 Bd3 Nd4 Bc4 Bd7 Rb6+ Bc6 Rb7 Qh3 Rb6 Rh2 Rb7 Ba4 Rb6+ Kc5 d6 Rh1 d7 Rh2 Ra1 b1R d8Q b2 Qd7 Bc2+ Bd3 Rf8 e8R Rg8 Re7 Re8 Qe2 Rh1 Bd2 Rc1 Rb1 Rd1 Bc1 Rd2 Qd1 Re2 Qd2 Nc6 Qf5 Kd6 Qc8 Qg8 Kf5 Qd5 Rbb7 Nd4+ Kg6 Qg8+ Kh6 Qg5+ Kh7 Kd5 Ra1 b1Q Qd7+ Bd6 Rb6 Qb4 Rb1 Qa4 Qf5+ Be5 Bb5 Qc4 Ba3 Qd3 Bd6 Qe4 Bb8 Bg2 Bd3 f1R Bc7 Rf4 Rb7 Bf1 R1b6 Rff2 Qg6 Rf6 Qf5 Rff8 Bc4+ Kc5 Rd6 Qef3 Rde6 Qfg2 Bb5 Kd5 Reb6 Qgf3 Rd3 Qfg2 Qd7+ Ke4 Re3+ Kf4+ Bd3 Nf5 Bb5 Qe4 Bc4 Nd4+ Ng6+
b1Nr3b/2n3RB/Q1k1r2Q/q1r2P2/3qp2b/2N2P1Q/1KRnQ2B/3q1r1r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 b5 c4 g5 Kc2 e5 h4 d5 a4 Kd7 c5 b3+ Kb2 g3 f3 d3 h5 b4 h6 g4 a5 d2 a6 d4 a7 d3 h7 g2 Qe1 d1Q Qd2 g3 Ra5 Be7 Rh6 Na6 Qf2 d2 Rc6 Nc7 Na3 Nf6 Ne2 g1R Qh2 g2 Nc3 Ne4 Nab1 Rh1 Bd3 g1B Be2 Re8 h8Q Bb7 Na4 Bd4+ Nbc3 Bh4 Bc4 Re6 Qe2 Rb8 Bd5 Ba8 Qh6 Qe1 Rb5 d1Q Bf4 Nd2 Rb7 e4 Bh2 Bh8 Bc4 Qf6 Bd5 Rd8 Nb6+ Ke8 Nc8 Kd7 Bc4 Qd4 Bd5 Re5 Bg8 Re6 Bh7 Rf1 Ra6 Rh1 Ra1 Kc6 Rc1 Rf1 Ka1 b2+ Ka2 b1R Rc2 Nd5 Rg7 b3+ Ka3 Rc1 Kb2 Bb7 a8Q Nc7 Qa2 Ba8 Qg2 Rh1 Qh3 Rf1 Ka3 b2 Qc4 b1R Qe2 Ra1+ Kb2 Kb7 Ne7 Ra5 c6+ Kb6 Bg1 Rc5 Bh2 Ne8 c7 Kb7 Ng8 Kc6 c8Q+ Nc7 Ne7+ Kb6 Qf4 Rh1 Ka2 Nc4 Qfe3 Qd1d2 Nd1 Qa5+ Kb3 Qed2 Nc3 Rcf1 Qg5 Qe1 Qh6 Nd2+ Kb2 Qd1 Qd7 Qda4 Qdd3 Qd4 Nc8+ Kc6 Qa6+
2Q4R/r5nr/n1Q1qN1q/2k1P2r/Bp1bKnPB/2rR3Q/b4QN1/q2r4 b - - 0 1 illegal: No possible last move, all moves rejected
1n2R1K1/2R3N1/rN2QB1B/rP2nQn1/1r1q2bq/5B2/q2Ppb2/q1kqB3 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 b4 c5 g4 a5 f4 e5+ Kh5 e3 b6 c3 f5 e2 g5 Kd3 g6 c2 b5 e4 b7 c4 g7 h3 f6 a4 f7 h2 Ra2 e3 Ra3+ c3 Ra2 a3 Bb2 c1N Ba1 c2 Nf3 Ra6 Ng5 Qd4 Rg1 h1R+ Nh3 Bg4+ Kg5 h5 Rb2 h4 Rg3 a2 Na3 Nf6 Kg6 Bc5 f8B Ne4+ Kf7 Rh5 Rb1 Ng5+ Kg8 Ba7 Bg2 e1Q Bf3 e2 Bc3 a1Q Nc4 Qa2 Bb2 Qeg1 Qf1 Ra5 Bc3 Rh6 Qf2 Re6 Nb6 Qd1 Rb4 Rd6+ Rc4 Re6 Rc7 Re1 Ng1 h3 Rg2 h2 Nh3 h1Q Bb2 Nf7 Ng5 Qh4 Rh2 Rc6 Ne6 Ng5 Rh1 Rc4 Rg1 Rb4 Rf1 Qe4 Bf6 Qd4 Rg1 Nb3 Qf1 c1Q Rg2 Qca1 Rg3 Na6 b8B Nbc5 Qf2 Kc2 Rh3 Qg3 Rh8 Qh4 Qf1 Kc1 Qh3 Bh5 Qf5 Rf1 Rc8 Rg1 Bg3 Bg4 Be1 Nb8 Rh7 Rg2 Re8 Nd3 Bd6 Nh3 Bf4 Ne5 Bh6 Ng5 Kh8 Ne4 g8Q Ng5 Ng7 Rg3 Qge6 Ra6 Bh1 Rga3 Kg8 R3a5 Bf3 Qdc3 Nd7 Bf2 Nb6 Qcc4 Nh5 Qd5 Rc7+ Qc5 Ng7 Qcc4 Rce7 Qcd4 Rc7+
5NRK/1knB1bB1/3r1q1R/P2nQP2/1q1N1b2/brB2b1B/2Q1rnp1/7b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 d5 a4 Kd7 c4 Kc6 h4 b5 f4 g5 c5 g3 a5 b3 f6 b2 f7 g2 f5 e4+ Kc2 d3+ Kc3 d4+ Kb3 b4 Kc4 e3 h5 g4 h6 e2 h7 e1Q Qb3 d2 Qa2 d1N Qa3 g3 Qe3 d3 Nd2 b1R Rh6+ Kb7 Rh5 b3 Qe5 b2 Rh6 Nf6 Nh3 g1B Nf3 d2 Nf4 Nd5 Bh3 Nf2 Kd4 d1B Ng6 Ra6 Bd2 Rd6 Bc3 Be6 Qe4 Rg8 Ke5 Bh2 h8Q Na6 Nd4 Nc7 Qg7 Qd2 Qc2 Bf3 Ra2 Be7 f8B Bf7 Qf6 Bh1 Bg7 Re8 Nf8 Bf3 Qh4 Bh1 Qf4 g2 Ra3 Rd1 Ra4 b1B Rb4+ Rb6 Ra4 Rb3 c6+ Ka6 Rb4 Ba2 Rb8 Ba3+ Nfe6 Qh4 Qg3 Re7 Rg8 Bh5 Qf4 Bf3 Qg3 Qdg5 Qf4 Rd2 Qg3 Rd7 Nf8 Rd6 Qf4 Qd8 Qg3 Qb8 Qf4 Qb4 Qg3 Ne6 c7 Ka7 c8B Nec7 Bd7 Kb7 Qb1 Ne3 Qc2 Re2 Re6 Qh8 Kf6 Ned5+ Kf7 Qh4 Qe5 Bf4 Kg6 Qf6+ Kh7 Bh5 Kh8 Bf7 Qb2 Bb1 Qc1 Be4 Qd2 Bf3 Qc2 Qe7 Rg6 Qf6 Rh6
B2rR1Q1/q1qNK2B/3pP1b1/4P2n/3n3r/2Bqn1bB/2k3NR/3Qqrq1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 d5 e5 fxe5 c6 Bd2 cxd5 Bc1 d4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 b5 a4 f5+ Kf4 b3 g4 d3 e4 b2 a5 b4 a6 h3 g5 h2 c5 d2 c6 h4 c7 h3 g6 b3 g7 Nc6 a7 Nf6 Kg5 f4 Nc3 b1Q Bb2 f3 Be2 f2 Ra4 f1R Rc4 Qa2 Qa1 d1N Nf3 Ne3 Ne1 Bd6 Qd1 Nh5+ Kg6 Nd4 Ba1 b2 Ng2 b1Q Nd5 Qd3 Rg1 h1Q Nf6 h2 Bc3 Bb7 c8B Qc7 Kg5 Rb8 a8B Qa7 Ra4 Bc6 Ra5 Rd8 Ra2 Rb4 Rd2 Ba4 Kg6 Bc2 Kg5 Re1 Rf1 Qg1 Rf4 h1Q g8Q+ Ke7 Rh4 Rf1 Rh2 Ra4 Bg4 Rc4 e6 Bg3 Ba6 Kd6 e5+ Kc5 Bh3 d6 Rf2 Bb1 B6b7 Ra4 Nd7+ Kc4 Rf8 Bc2 Be4 Kb3 Qg4 Bb1 Re8 Kc2 Qf3 Ne2 Bef5 Rh4 Bh7 Nd4 Qd5 Qf2 Qf3 Qe1 Qg4 Qg1 Qf3 Nf4 Kf6 Nh5+ Ke7 Ba2 Qf4 Bd5 Qf5 Be4 Qf3 Bg6 Qd1+
1r1B1Nr1/k3P1Nb/4QBB1/4b2K/1r5R/qq1Q1R2/P3pnB1/qq2nnq1 b - - 0 1 illegal: No proof kernel
Q1b1bKnb/4nR2/3r4/1bR3b1/1PQBQ1rb/QB1N1pP1/7b/qN3kn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 e4 h5 b3 f5 b6 f3 d3 h3 b7 c3 Be2 h4 Qd2 f2 Bh5 f1B Bb2 a4 Be2 f4 Qc2 a3 Bf3 h2 Bd1 a2 Bh5 h3 Qc1 c2 Bc3 Ra4 Qe1 c1B Be8 Rh6 Qd2 Be7 Nf3 Rd6 Bf7 Bh4 Rg1 h1B Qc2 h2 d4+ Kb5 d5 c5 Qb2 c4 Bd4 c3 Ne1 c2 Qa3 Qa5 Nd3 Qa8 Be6 Nc6+ Kf5 Qa7 Kg6 Nce7+ Kf7 Bb2 e5 c1B Kf8 Be2 Kg7 Bh5 Kf8 Be8 Bf7 f3 e6 Bcg5 Re1 Bbc1 Rg1 Bcf4 Rc1 Rc4 b4 Be5 Bc5 Rg4 Bd4 Bef4 Rc7 Bfg3 Rd7 Kc4 b8Q B3f4 Qa8 Be5 Nc3 Qa5 Rf1 a1B Rc1 Bef4 Nb1+ Bc3 Qb2 Qa1 Qba3 Be5 Re1 Bh8 Re5 Bcd2 Rf5 Bde3 g3 Bg2 Re5 h1N Ra7 Bf1 Rf5 Rd7 d6 Bg1 Rd5 Rd8 d7 Nf2 Re5 Nh3 Rb7 Nd5 e7 Bh2 Rf5 Ng1 Be6 Bf7+ e8Q Bg6 Rf7 Be2 Rb5 Bh5 Bf5 Nde7 Rd5 Bg6 Be6 Bf1 Ba7 Bh5 Rc5+ Kd4 Bb6 Ke3 Bb3 Ke2 Qd5 Bg2 Qc4 Kf1 Re5 Bh3 Bd4 Ba6 Rc5 Bb5 Re5 Ra8 d8Q Ra6 Rc5 Rd6 Qda8 Bg6 Rf6 Bf7 Qec6 Be8 Q6d5 Rf4 Qe5 Bc8 Rf7 Rg4 Qee4
2b1r1nR/1BBb2b1/P2bnqp1/BN1N2bk/1nb1B1r1/1Q1Q4/3PK1b1/3R4 b - - 0 1 illegal: No possible last move, all moves rejected
bRknQ1b1/1b3PbB/B3n3/1Nbb1KBr/q5Np/n2Q2PB/2Rb4/4r3 b - - 0 1 illegal: No possible last move, all moves rejected
R4N1b/n4r2/1nn1rR1q/B5R1/1NPkr1R1/q1Q2pnq/Q1bK1b1P/5B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 c4 Ke7 b4 Ke6 e4 Ke5 b6 a5 b5 f5 b7 d5 b6 g5 Bb2 g3 Qd3 g4 Qf3 g2 Qf2 a4 Nd2 a3 Nh3 g1R Ke2 g3 Bg2 f3+ Kd3 a2 Rf1 a1Q Nb3 f4 Na5 Qa3+ Bc3 Qdd6 Qa2 f2 Ng5 f3 Nh3 Ne7 Nb3 Ra7 Ba1 Nbc6 b8Q Rh6 b7 Re6 Qc2 Bg7 Qc7 Bh8 Rd1 Re1 b8R f1N Bc3 Bd7 Qe2 Nc8 Ng5 Nb6 Ra8 Rb7 Bh3 g2 Ba5 g1B Nh7 Bf2 Nf8 Ng3 Kd2 d3 Qb8 d4 Na1 Be8 Rc1 Bg6 Nc2 Rf7 Rg1 Bf5 Nb4 Bh7 Qa7 Qd7 Qe3 Re2+ Kd1 d2 Qb3 Bg6 Kc2 d1N+ Kd3 Nc3 Bf1 Re3+ Kd2 d3 Rd1 Kd4 e5 Nb5 Qa6 Rd6 e6 Nba7 e7 Re4 e8R Qh3 Re5 Re6 Rg5 Qh6 Ra1 Bf5 Kd1 d2 Ra2 Ne2 R1g4 Ng3 Ra1 Ke5 Kc2 d1Q+ Kc3 Qb1 Kd2 Kd4 Ra2 Qa1 Rb2 Rf4 Rb1 Bc2 Re1 Qh3 Ree5 Re4 Ref5 Qb1 Rf6 Qh6 Qb5 Qh3 Q5a4 Qh6 Qa2 Qbb2 Q4b3 Qa1 Bd3 Qf1 Be2 Qg2 Bf1 Qgh3 Qc3+
2n5/Rq4Nb/5Qb1/pN1Qr2R/4nNKB/P1r2PnB/q1N4k/qb2q1r1 b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 Bh3 b5 Bf1 bxc4 h4 g5 Qa4 Be7 Qb3 fxg4 Qc2 g3 Qd3 g4 Qd1 Bg5 hxg5 Bb7 Qc2 Ba6 Qd1 Bc8 e4 Ke7 Ke2 Kd6 b4 Ke5 f3 c5 b5 d5 b6 a5 a3 h5 b7 h4 g6 d3+ Ke3 d4+ Kd2 Kf4 g7 g2 e5 Kg3 e6 h3 e7 h2 e8N c3+ Ke1 d2+ Ke2 c4 Qc2 d1B+ Ke1 d3 Nd6 Nd7 b8N Qb6 Nb7 Ne7 g8Q Nc5 Qf7 Ne4 Qe2 c2 Nd2 c3 Na6 Rh5 Nb4 Re5 Na2 Bf5 Nd6 Bh7 Ne8 Qb7 Qb3 Nc8 Bb2 c1Q Nb4 c2 Bc3 Qb1 Nh3 c1Q Nf4 g1R Qd5 Qa2 Nb1 Bc2+ Qd1 Bg6 Ng7 d2+ Ke2 Ra6 Ke3 Rc6 Bh3 Bh7 Qe2 d1B+ Bd2 Bg6 Nc3 Bb1 Qa6 Bdc2 Nb5 Rc7 Qf6 Rc3+ Kd4 Bd3 Nc2 Qe1 Bc1 Rg2 Rg1 h1N Be3 Bh7 Bf2+ Kh2 Bh4 g3 Nf5 Qd1 Ke3 Bg6 Re1 Rg1 Ng7 g2 Re2 Qc4 Ra2 Qe1 Rb2 Qa2 Rb4 Qa1 Rc4 Qa2 Rc7 Nhg3 Re7 Qa6 Ra7 Bh7 Ng6 Qb7 Kf4 Rh1 Re3 g1Q Kg4 Qgf1 Nf4 Rg1 Bg2 Qff2 Bh3 Qa1 Ncd4 Qfa2 Nc2 Nd2 Re4 Bg6 Ra4 Bh7 Rc4 Bdg6 Rc5 Nde4 Qdf7 Re6 Rh5 Re5 Qd5
1q2rn2/q7/1BNP1RBp/1k3n1Q/bqn1b2b/1r4r1/QB3KPq/2BR1N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Kd7 b4 c5 e4 a5 b6 Kc6 d5+ Kb5 e5 f5 e6 f3 e7 f2+ Ke2 h6 e8Q+ Nd7 b7 f4 b8B c3 d6 c2 Bc7 f3+ Ke3+ c4 Qe4 a4 Bd3 f1N+ Kf2 a3 Bg5 c1Q Bd2 h3 Ba5 h2 Be1 a2 Bc3 Qd2+ Ne2 Ne7 Qg4 Ne3 Qe1 Rg8 Bg7 Bb7 Bb6 N7f5 Bb2 Be4 Ba7 Qb8 Bc3 Be7 Bb2 Nf8 Rf1 h1Q Bb6 Qh2 Qh5 Rg3 Qc1 Bd8 Qc2 Bh4 Rd1 Qc3 Nd2 Ra3 Rf1 Rb3 Rad1 a1Q Bc1 Qaa8 Qa2 Qaa7 Bd4 Qb2 Be5 Qba3 Beb2 Q3a4 Bc2 c3 Bb1 c2 Nd4+ Ka6 Nc6 Kb5 Rfe1 Q4a5 Nf1 Nc4+ Re3 Kb6 b5 Qb4 Ree1 Kc5 b6 Kb5 Be3 c1R b7 Rcc3 Bc2 Rd3 Re2 Rd4 Bec1 Rd5+ Re3 Re5 Bd3 Re8 Bc2 Qba8 b8B Q8b7 Bc7 Qab8 Rc3 Q7a7+ Ke1 f2+ Ke2 Re5 Rf3 Re7 Bb6 Re8 Nd2 f1B+ Kf2 Bfd3 Bb1 Bc2 Nf1 Ra3 Rf4 Ba4 Rf3 Rb3 Rf4 Bd5 Bd3 Nd4 Bh7 Nf5 Bg6 Be4 Qf3 Ne7 Rf6 Nf5 Qh5
B1R1q1N1/K2b4/p2nPN2/4qn1b/5b2/r2kQ1R1/Nrq2PQ1/b2nr1BN b - - 0 1 illegal: No possible last move, all moves rejected
3Q4/1qqN3P/QqbB1P1p/4N2K/Rn1b3N/r1NRk3/3r2nb/2nB2nr b - - 0 1 illegal: No possible last move
rB2R3/1R1P2r1/3PqNkQ/1Bbnb1b1/r2N2R1/n1p5/2q2Q2/q3nbRK b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 f5 Kg2 Kf7 h4 c5 e4 b5 a4 g5 d4 g3 h5 f3+ Kh3 c4 e5 b3 a5 b4 d6 c3 a6 g2 Kh2 g4 d7 f4 h6 g3+ Kh3 f2 e6+ Kg6 h7 b2 e7 f3 e8R b3 d5 Qb6 a7 Nc6 Re1 Ba6 Bb5 f1Q Re7 f2 Re4 Bh6 Na3 b1Q Qc2 b2 Qd2 Nb4 Re6+ Nf6 Ne2 Nd3 Rg1 Ne1 Nd4 Bg5 Qe3 Qc2 Re8 b1N Nc4 Rg8 h8Q Na3 Nd6 Rg7 Ne4 Qc6 Rb8 Qcc4 d6 Nd5 Nf6 Q4a2 Rb1 Qfc4 Rf8 f1R Qf2 Qa1 Be3 Q4a2 Rg8 Qab3 Rh1 g1B Rb2 Bh2 Rg1 g2 Qh6+ Kf7 Re8 Qc4 Re4 Be5 Rg4 Q4b3 Ba4 Qc4 Rb7 Q4b3 Bb5 Qba2 Qfh4 Rf4 Kh2 Qab3 Qf2 Qc4 Rf1 g1B+ Kh1 Q4a2 Ne6 Ra4 Nd4 Rf8 a8R Qc4 Qh3 Kg6 Re8 Rh8 Nb3 Q4e2 Ba7 Rf8 Nd4 Qe3 Re7 Ra8 Re8 Qee2 Bb8 Qee4+ Qfg2 Qf5 Qh4 Qe6 Qf3 Bf2 Rfg1 Be3 Ne2 Bc5 Nd4 Qcb2 Qff2 Qc2 Bc6 Bd3 Bb5 Bf1 Qh6+
1q1bqRK1/p1qBBQ1P/3n2nb/r3Pb2/6R1/r2B2B1/1n3br1/Q1N1N2k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 b4 g5 h5 f5 b6 d5+ Kb3 g3 c4 d3 b7 f3 h6 f2 c5 d2 c6 d4 Kc4 d3 e3 g4 b5 f4 b6 g2 c7 f3 Rh2 g3 Qa4 d1R Qa2 d2 Be2 f1Q Rh5 f2 Rh1 Bf5 c8B Ne7 Na3 Qe1 Rh2 f1Q Be6 Nbc6 b8B Ne5+ Kc5 N5g6 b7 Qf4 Nc2 Nc8+ Kc6 Qe5 Ba3 Nd6 Bd7 Qf4 Bc7 Qb8 Qf7 Rc1 Rh3 d1N Rh4 Nb2 Rg4 Rb1 Ra2 Ra1 h7 Bh6 Ba6 Rf8 Ne2 Kf3 Kd5 g1B e4 Kg2 Nc1 Kh1 Bd3 g2 Bb4 Qe2 Ne1 Bb6 Ra6 g1B Ba3 Ne8 Be7 Bgf2 Ra2 Qh2 Bg3 Bd8 Ra3 Qc7 b8Q Nd6 Qc8 Rg8 Qa6 Rb8 Rb3 Rc8 Rb8 Ra3 Ra8 Rb8 Qa5 Rb4 Rb8 Rba4 e5 Qh5 Rc8 Qb8 Qc3 Qc2 Qd4 Qcc7 Qc3 Be4+ Ke6 Ra5 Qd4 Bf5+ Kf6 Na4 Qa1 Nb2 Qg7 Nf8 Rh4+ Bh3 Bh2 Bf5 Qg6 Rg7 Qe8 Rg2 Rg4 Bf4 Kg7 Bh6+ Kh8 Qg6 Bg3 Qe6 Bf6 Be7 Qf7 Ng6+ Kg8 Qbb3 Bf1 Qbb8 Rf8 Bd8 Bd3 Qe8 Be7
nB2BQ1N/n3P1N1/4N1r1/3rpr1r/b3P2N/Kb1R4/bnRr2Q1/k1qr4 b - - 0 1 legal: proof: f4 a5 h4 c5 b4 axb4 d4 cxd4 f5 g5 f6 gxh4 Nf3 e6 Ng1 Be7 Qd3 Qc7 Rh3 Kd8 Rh1 Qa5 fxe7+ Kc7 Qd2 Kc6 Qd1 Qd8 Kd2 Kc5 g4 Kc4 e4+ d3 a4 b5 c3 d5 a5 h5 g5 f5 a6 e5 g6 f4 a7 d4 g7 f3 Qe1 Kb3 c4 h3 c5 h4 c6 h2 c7 h3 Be2 f2 Bf3 f1R Ne2 Be6 c8N Nc6 Nb6 Rh5 Qh4 Qc8 Nf4 Nf6 g8Q Nd5 Nc4 Nb6 Rg1 h1R Rg3 h2 Ng2 Rhg1 Qg6 h1R Nba3 Rh2 Rb1+ Ka2 Be2 b3 Re3 b4 Nc2 b2 Qf4 b3 Qf8 Rff5 Nd6 Rb8 a8N Na7 Nc7 Na8 Bd1 Rb5 Nf7 Rd5 Ne8 Bd7 Ng7 Ba4 Re2 Qc6 Nh4 Rhf2 Qd6 Rg6 Nh8 Rfg2 Rf2 Rh2 Bg4 Qc5 Kd1 d2 Qa6 Qc3 Qf1 Qe3 Qg2 Qg5 Ke2 d1N Be3 d3+ Kd2 Qf4 Rc1 b1R Rf3 b2 Nd4 Ka1 Rc2 Rc1 Nde6 b1B Rg3 Nb2 Kc3 d2 Kb4 d1B Ka3 Ba2 Bf2 Rb1 Rd3 Qc1 Bb6 B4b3 Bc7 Ba4 Bb8 B4b3 Qg1 Rd2 Qg2 Ba4 Rcc3 Bdb3 Rc2 Rf4 Nd4 Rf1 Bd7 Rff5 Be8 Qh1 Nde6 Rbd1 Rc8 Qf1 Rg3 Qc4 Rd3 Qc1 Rc2
N2n1Rb1/bn2P3/Q1r1nRp1/2BQ1q2/1nBnr3/2k2RRP/r1N3K1/5nb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 b4 Ke5 c4 a5 b6 d5 b5 f5 h3 g6 c5 d3 c6 Kd4 b7 a4 e5 f3 b6 a3 c7 f4 e6 g3+ Ke1 g2 Kf2 d2 Nc3 a2 Qc2 d1R Rb1 a1N Bd2 Bc5 e7 Nh6 Qb2 Nc2 Ra1 Re1 Bc1 Be6 c8Q Nd7 b8R Nb4 b7 Ba7 Qc7 Nc5 Qa3 Qc8 Qca5 Nf7 Q3a4 Re4 Q5b5 Nd8 Qb6 Bg8 Na2 Qf5 Qbc6 Nce6 Ne2+ Kd3+ Be3 g1B+ Ke1 d4 Qd5 Rh4 Nac3 f2+ Kd1 f3 Nb5 Rhg4 Qa6 Rg3 Rc8 Rg2 Rcc1 Rc8 b8R Rc6 Rc4 Rh2 Nc7 Rg2 Na8 Rh2 Bg2 f1N Ke1 Nd2 Ra3+ Nb3 Kf1 f2 Rc8 Nf7 Rf8 Nfd8 Nc3 Kc2 Na2+ Kb2 Bf3 d3 Be2 d2 Bc5 d1N Rc3 Nbd4 Rf3 Nc3 Bc4 Ncb5 Rg3 Nd6 Raf3 N6b7 Rf6 Nd3 Nb4 Kc3 Rf8 Qg4 R3f6 Qf5 Nc2 Rg2 Rg4 Nb4 Rf4 Rg4 Rh2 Rg3 Rg2 Rd3 Rgg4 Rd2 Kg2 f1N+ Rf2 Rd1 Rg5 Ra1 Rf4 Ra2 Rf3+ Kb2 Bd3 Kc3 Rgg3 Re1 Bb5+ Re3 Bd3 Re4 Bc4+
Rrb1rn2/N2Pb2R/3N4/2q1r1B1/r3r1rB/n1Pp3K/1BB2kr1/Q2Q2q1 b - - 0 1 illegal: No possible last move
n2b4/3P2Kb/6N1/1Bnbp1q1/1BBb1Qb1/2Q1P3/Rb2rb2/R2rBNqk b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 c4 gxf4 axb5 d5 g5 dxc4 Qb3 Qd5 Qh3 Qd8 Qg4 hxg4 Kf2 Kd7 b4 Kd6 d4 Kd5 h4 Ke4 d5 f5 b6 e5 e3 c5 b7 a5 d6 a4 h5 g3+ Ke2 g2 b5 a3 b6 a2 g6 c3 h6 c2 g7 c4 h7 f3+ Kd2 f2 Kc3 f4 Ne2 Kf3 Rg1 Bg4 d7 Qg5 Rh1 g1B Bd2 c1B Be1 Be7 Bd2 Bb2+ Kc2 c3 Kd3 c2 Kc4 c1Q+ Kd5 Bd8 Bh3 f1B Rh2 Bf2 Be1 Na6 b8B Bg2 b7 Nc5 Bd6 Rb8 Bf8 Nf6+ Kd6 Rg8 h8Q Nd5 Qh4 Nb6 Qh6 Rh8 g8B Na8 Bc4 Rc8 b8Q Qd1+ Bd2 Qg1 Qc7 Rb8 Be1 Rb3 Be7 Rd3+ Nd4+ Kg3 Nd2 Bd5 Ne6 f3 Nf4 Rg8 Bf1 Bd4 Rc1 a1B Ng6 Bab2 Ra1 Rh8 Qa5 Rf8 Qc3 Rh8 Nb3 Rd1 Nd2 Rf8 Bb5 Rf5 Bfc4 Rf4 Rh3+ Kg2 Nf1 Rf7 Qf8 Rf5 Rg3+ Kh1 Rg2 Rf7 Nh2 Rh7 Nf1 Rh2 Qf5 Bh4 Rd2 Re2 Qf4 f2 Bf8 Bc1 Rda2 Bb2 Nd2 f1B Be7 Bfg2 Nf1 Bge4 Bf8 Bf2 Be7 Qf5 Bf8 Ba5 Ke7 Qg5+ Ke8 Bc2 Bd6 Bd8 Kf8 Nb7 Bb4 Nc5 Nh4 Bg6 Kg7 Bh7+ Ng6
1k1n2rr/2R1Kb2/1rB2r2/b5N1/1p2PRR1/1RBNbQ2/5bPq/Qn3b1r b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 h5 Ke4 b5 Kf5 c5 d4 Kc7+ Ke5 f5 a4 h4 e4 f3 a5 b3 d5 f2 g6 b2 a6 c3 g7 c2 a7 c4 Be3 c1B Qe2 h3 Ra4 f4 Bd4 h2 Bc3 f3 Qd3 Qd6+ Kd4 Nf6 g8Q Bd2 Rb4 Be6 Nh3 Bf7 Na3 b1R Ng5 Be1 Be2 f1B Nc2 f2 Qg7 Qf4 Rb2 Bb4 Rb3 Ba5 Kc5 Nc6 Qf3 Rag8 a8R Nd8 Ra7+ Kb8 d6 Nd5 d7 Qh4 Rg1 h1R Rc7 Qh2 Nb4 Rb2 Nd3 Rb1 Be5 c3 Kd6 c2 Qgf6 Nc3 Ke7 c1B Qa6 Bb6 Qa1 Ba5 Bf6 Rb2 Bd1 Nb1 Bc3 Be2 Bc2 f1R Bd1 Rf2 Rf1 Be3 Qh5 Rf6 Rf4 Bh4 Qf3 Bf1 Be2 Nb7 Rg4 Bhf2 d8R+ Ka7 Rd5 Kb8 Rf5 Nd8 Bd1 b4 Rff4 Rd2 Rb2 Rb6 Ba4 Rf6 Rb3 Rc2 Be5 Rcc6 Bc3 Rb6 Bc6
3bR3/K3N1n1/3Q1BQk/b2r1P1B/b1npr3/q5b1/Q2b1rrP/Q4NrR b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 b4 e5 f4 a5 c5 d5 b6 e3 Kd3 g3 b7 g2 c6 e4+ Kc2 d3+ Kb3 e2 Ka4 e1B Kb5 d2 f5+ Kh6 c7 g5 Kb6 e3 b5 a4 Bb2 e2 Bc3 g4 Qc1 a3 Qc2 d1R Qb3 g3 Ba5 a2 Qb2 Nd7+ Kc6 Ne5+ Kb6 Bd7 b8Q Nf6 Nh3 g1R Qc2 g2 Qc4 Bd6 Bc3 Nh5 Nf4 Qe7 c8Q Ng7 Qe8 Bd2 Ng6 e1B Be2 Ra7 Qf7 Re8 Qa8 Bb4 Bh5 Bg3 Qb3 Rdf1 Qe6 Ra5 Qa6 Rf2 Ka7 Qf8 b6 Nc4 b7 Ba4 b8Q Rb5 Qad6 Ba5 Bf6 d4 Qc3 Rd5 Qbb3 Bd8 Qg8 Ree2 Ne7 Rge1 Qc1 g1R Qcd1 B2a5 Nd2 Rgg2 Qb2 Reg1 Nf1 Re4 Qg4 Bd2 Re1 a1B Qc1 Bc3 Qa1 Bca5 Qe2 Bc1 Qea2 Bg5 Rb1 Bgd2 Rb8 Qe8 Qf7 Qb5 Ra8 Qb2 Rb8 Qa3 Qfe6 Bdc7 Re8 Bd8 Qg8 Rh4 Qf7 Re4 Qg6#
3R1QN1/1B4b1/1rb5/p3P3/2RRRbrb/1QBrq3/rn1Pn2k/rN3K1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 b4 Kd7 e4 Kd6 g4 Ke5 g5 c5 b6 h5 g6 f5 g7 h3 b5 h2 b7 c3 b6 c2 Qg4 h4 Ne2 f3 Na3 c4 Qg6 h3 Qh5 c3 Qg6 f4 Kf2 Qe8 Rb1 Be7 Rb4 Nh6 g8Q Bd7 Bb2 c1B Qf8 Nc6 b8R Rg8 b7 Na5 Qh5+ Nf5 Qh4 Nc4 Qh5 Bh4+ Ng3 Rg4 Nc2 Bc6 Rg1 h1B Rc8 h2 Qhf7 Nd4 b8R Ne2 Nd4 c2 Ba3 Bb2 Qb7 c1B Ke1 f2+ Kd1 f3 Ngf5 Kf4 Nb3 Be5 Na1 Bcb2 Nc2 a5 Qbf7 Ra6 Bg2 Rb6 Ne7+ Kg3 Ng8 Bf4 Re1 Bg7 Bb2 f1R Bc3 f2 Na3 Qe7 Nb1 Nb2+ Kc2 Qc5 e5 Qe3 Rd4 Rg1 Qe6 f1R Qb3 Rf3 Rcd8 Qf2 Rc4 Rd3 Rdd4 Qe3 Bf3 Bg2 Rbd8 h1R Bd5 Rh3 Be4 Bh1 Bg2 Kh2 Be4 Bb5 Bb7 Bbc6 Rf1 Bfg5 Rff4 Re1 Rfe4 Bf4 Na3 Ra1 Nb1 Na4 Kd1 Rhg3 Ke1 Nb2 Kf1 Ra2 Qc2 Ra1 Bb4 Rda3 Qd1 R3a2 Qb3 Qd3 R4d7 Qd4 Rd6 Rd3 Bc3 Qe3 Rdd4
1bN1Q1b1/rB3rr1/5NQn/3R2r1/1kbbR1p1/3R1B1P/1n1q1RP1/1K3b1n b - - 0 1 illegal: No proof kernel
1r1R4/k1r1Q1Q1/NB5q/n1rq2R1/1r3pP1/rP2r2n/2RRB2N/bb1K1b2 b - - 0 1 illegal: No possible last move
1br2NQ1/4B2b/1r2rn2/5PnQ/1pr1Nq1B/rR1qk3/bPR2r1B/2K2B2 b - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 g5 h4 gxh4 a5 d5 cxd5 Nc6 a6 Nb4 Qe2 Nxa6 Qf3 Nb4 Qd1 Na2 d4 Kf7 Kd2 Kf6 g4 Kg5 f3 Kf4 d6 h5 d5 a5 g5 b5 g6 c5 d7 e5 d6 c4 g7 e3+ Kc2 b4 Rh3 a4 Nc3 a3 Qd4+ e4 Qc5 Rh6 Bg2 Nf6 Nd1 c3 Rg3 h3 g8Q h2 Bd2 h1Q Qd4 h4 Bf1 h3 Qgc4 h2 Be1 e2 Bf2 e1R Bg2 Re2+ Kb3 c2 Qa6 c1R Qac4 Nc3 Qb6 a2 Qg8 e3 Qc5 Nce4 Nc3 Ng5 Ne4 Rc4 Rc1 a1R Rc2 Be7 Be1 Rf2 Bf1 e2 Qf5+ Ke3 f4+ Qf3 Nh3 Qf8 d8B h1B d7 Bd6 Be7 Bb8 d8B Be6 Bc7 R1a6 Be5 Rb6 Qfg6 Rh8 Qh5 Bf5 B5d6 Bh7 f5 Qh6 Nf4 Ra4 Qe6 Rhc8 Ng6 Ra2 Nf8 Raa6 Bc3 e1R Qg8 Rea1 Bde5 Re6 Be1 Rab6 Rh3 Ra7 Bh2 Qg3 Nc5 Bd5 Ne4 Qf3 Qe8 Qh4 Qh5 Qf4 Rg3 Rab7 Ka2 Ra7+ Kb1 Raa6 Kc1 Ra3 Rg4 Qe2 Rg2 Qd3 Rc3 Rf3 Rgc2 Rf2 Rb3 R4c7 Rbc3 Ba2 Rb3 Rcc6 Nd2 Rc4 Ne4 Rg2 Beg3 Rf2 Bh4
bQ1n4/K1BbR1n1/QN1B1b1b/2p3Nr/2NP1b2/RN2r2n/1rP5/1q2k2n b - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Ke2 Kd7 b4 Ke6 h4 Kf5 b6 e5 g6 c5 d3 a5 b7 f3+ Ke3 f2 b5 f1B g7 g3 b6 g2 h5 a4 h6 a3 h7 a2 Nh3 g1N Ng5 Nf6 g8Q Bd7 Na3 Nh5 Qe1 Kg4 Bb2 f5 Qe6 Nc6 b8N Bh6 b7 Nh3 Qb4 Kg3 Nb1 f4+ Kd2 Kf2 Kc3 e3 Kc4 f3 Kb5 e2 Qe4 e1R Ba3 Ng7 Qe8 Bg2 Bc1 Re3 Q4g6 e4 Re1 Qc8 Kb6 Nd8 Nc6 Qb8 Ne5 Ra5 Nc4 Rb5+ Ka6 Rb2 Nbd2 Bh1 Nb3 Bg2 Rb1 a1B Bd2 Bh1 Ba5 Bg2 Bc7 Bh1 Rec1 Ke2 Rg1 f2 Rg3 f1N Rd1 Bf3 Rd2+ Ke1 Re2+ Kd1 Qf8 Bg2 Rf3 Ng3 Qfd6 Nh1 Qf4 Rf8 h8B Rf5 Qe5 Nh5 Bf6 Ng7 Rg3 Bf3 Be7 Bg2 Bed6 Bf3 Nh7 Rh5 Ng5 Bg2 Rf2 Ke1 Rf7 Rf3 Qge6 e3 Re7 e2 Qf4 Re3 Qg6 Qc8 Ka7 Bf3 b8N Ba8 Bb6 Qc6 Bbc7 Qb5 Qgf6 Kd1 Qg6 e1B Rf3 Bc3 Qf8 Bf6 d4 Ke1 Qg8 Rb1 Q8e8 Bc3 Qh8 Bd2 Rg3 Bg4 Nd7 Rb2 Ndb6 Bd7 Qd3 Nde6 Qb8 Nd8 Na1 Qb4 Qa3 Qb3 Qa6 Qa2 Nb3 Qb1 Rg4 Re4 Rg3 Bf4 Nbd2 Re2 Ra3 Re3 Nb3
BN1r1QR1/b1n1B3/Q3q1BK/2pR1bB1/2Pb1k2/n1r3nP/N2r3r/rb6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 g5 e4 gxf4 g5 dxe4 Qg4 hxg4 Kf2 Kd7 c4 Ke6 d4 Kf5 b4 a5 d5 e5 g6 a4 d6 f3 Kg3 e3 g7 e4 b6 e2 d7 e1R b7 e3 b5 e2 b6 f2 Ra3 Nh6 g8B Bg7 Bh3 f1R Rc3 a3 Rb3 a2 Bf4 a1R Be3 Qf6 d8B Rf2 Rd3 Rc1 Rc3 e1N Bg2 Na6 b8Q Rd2 b7 Nc2 Bf4 Na3 Qa7 c6 b8Q Nc7 Ne2 Rcc2 Kf2 g3+ Ke3 Bd7 Bf3 g2 Qa6 Qg6 Bh5 g1B+ Kf3 f6 Be7 Ba7 Bd5 c5 Qf8 Rd8 Rd3 Bc8 Be3 Ke5 Rc1 f5 Nbc3 f4 Nd4 Nf5 Na2 Rc3 Rg1 Qh6 Kg4 f3 Bc6 f2 Ba8 f1B Nc6+ Ke4 Rd7 Bd4 Rd5 Bd3 Nb8 Bb1 Be8 Qc6 Kg5 Kf3 Bf7 Rh6 Rg4 Ng3 Be8+ Bcf5 Bf7 Re6 h3 Qd7 Bf4 Ree2 Kh6 Rh2 Rg8 Qe6+ Bg6 Ke4 Bfg5 Kf3 Bh4 Kf4 Bhg5+
5QN1/2B1bn2/KBN1B1p1/3bq3/2r1qP1q/1BP1q1k1/bQRrq3/q1n4R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 h4 b3 a4 g6 f3 b2 a5 d3 c3 g3 h5 d4 a6 d2 h6 Kf4 f6 e5 h7 e4 f7 g2 a7 d3 Na3 b1Q+ Bb2 e3 Rh4+ Kg3 f4 e2 Qc2 e1Q Rh2 d1Q Qb3 d2 Rh1 Be7 f8Q Na6 Nc4 Nb4 Qa4 Qde2 Qa5 d1Q Ra2 Qbe4 Qa3 Nh6 Nh3 g1Q Bc1 Be6 Be3 Qa1 Nf2 Nf7 Ng4 Bd5 Bb6 Nd3 Rc2 Qge3 Na5 Rc8 a8B Rc4 Nh6 Nc1 Bh3 Qb8 Nc6 Qbe5 Bc7 b6 Ka6 b5 Bf5 b4 Ng8 b3 Be6 b2 Bb7 b1B Bb6 Ba2 Qb2 Q1f2 Bbc8 Nd8 Bf7 Qfe1 Bce6 Q1f2 Nf6 Rg8 h8B Qfe1 Bg7 Rh8 Ng8 Rh2 Be8 Nf7 Bc7 Qg5 Bd4 Qh4 Bdb6 Rg2 Na7 Qe5 Ba4 Q3e4 Bb3 Q2e3 Bc5 Rd2 Nc6 Q1e2 B5b6
r3N1N1/Q1K3p1/kn3B1Q/br6/2n2QP1/4Rq2/1bPb1RBn/Qr1nn1b1 b - - 0 1 illegal: No proof kernel
R2R3N/1qb2P2/2rP3n/b1pBnbB1/3b1B1q/2Bk3q/2N3Qr/K3bbQ1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 d4 Kd7 Kd2 Kd6 Kc3 Kd5 g4 c5 b4 e5 Kb2 h5 f4 a5 g5 h3 f5 c3+ Ka2 a4 b6 h4 b5 e3 g6 Ke4 d5 c2 g7 a3 f6 e2 f7 h2 b7 h3 b6 Bf5 Qd2 Bd6 Qg5 Nd7 b8B Ra6 b7 Rc6 Be3 c1Q Kb3 a2 Na3 Qb1+ Kc3 Qbb6 Rd1 a1B+ Kc2 Rh5 Nf3 Nh6 g8Q Qb4 Rg1 h1Q Nh4 h2 Ng6 Rh3 Qg3 Qh4 Nh8 Qg2 Bc7 h1B b8B Rh2 Ba5 Qb7 Q3g6 Bb2 Kb1 Qgh3 Nc2 Bg2 Bbc7 Bc3+ Ka2 Ba1 Bd8 Bc7 Bf4 Bc3 d6 Bb2 Ra1 Kd3 Qg4 e4 Q8g5 Bg7 Bc3 e3 Qg3 Bge4 Bg2 Bd4 Be7 Bf3 Qf2 Bh5 Bd5 Ne5 Rg3 Bf3 Qg1 Bg2 Qg4 Bf1 Qf3 Bc8 Rg8 Bf5 Beg5 e1B Rd8 Bg3 Qfg2 e2 Bb2 Be1 Kb1 Bd2 Raa8 e1B Ka1 Bda5 Bc3
1Q3b1b/rQ1b1pr1/1nP4k/2PR4/2q2qbK/1RR1n2b/1Bq3b1/1BNN3R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 g5 h4 b5 c4 d5 a4 d4 e4 g3+ Kf3 b3 h5 d3 e5 g2 e6 b2 Kg4 f3 a5 d2 a6 f2 h6 b4 a7 b3 h7 Nh6+ Kh5 g4 c6 g3 c5 Rg8 h8Q Qd4 Qg4 d1B Ne2 g1Q Qf3 g2 Ng3 Nf5 Ba6 f1B Qh6 Rg7 Bb7 Ne3 Qh8 Qf2 Ba6 g1B Ra3 Bd7 Nc3 b1B Bd3 b2 Nge2 Bh3 Rb3 Qc4 Be4 Qh2 Kh4 Qf4+ Qg4 Ba2 Bb1 Ke7 Qg8 Kf6 e7 Bg2 e8R Bh3 Be4 b1Q Rd8 Qc2 Bb2 Bh2 Nc1 Bf3 Re8 Bfg2 Re5 Bb1 Nd1 Bg3+ Kh5 Be1 Qf3 Bc3 Rd5 Bdg4+ Kh4 Nd7 Bf5 Nb6 Qe4 Bd4 Qe8 Bc3 Qb8 Be5 Qb7 Bd4 Be6 Kg6 Bf5+ Kh6 Be4 Qd2 Bh7 Bbf5 Qh8 Bd7 Bb1+ Rh7 Qe5 Qdc2 Qeb8 Bh8 Q8c8 Rb8 a8R Rg7 Raa3 Ra8 Qcb8 Ra6 Rc3 Ra7 Rab3
1N1n1BK1/3BpQRr/3q3r/bNn1k2r/1Pb2P2/1r3rn1/qR3NQ1/r1N5 b - - 0 1 illegal: No possible last move, all moves rejected
rnQRqr2/P3Rr1n/1Q6/RB1bPk2/4N1rb/1r2R3/2KN2pn/4Bb1b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 g5 h4 c5 a4 b5 e4 f5 a5 g3 a6 c4 a7 c3+ Kc2 b3+ Kd3 c2 d6 Ke6 d7 f3 e5 f4 d5+ Kf5 d6 g4 h5 b4 h6 b2 h7 f2 Nc3 b1B Qe1 f3 Nh3 b3 Nf4 b2 Nfd5 g2 Rh6 g1R Ra4 g3 Na2 Be7 Qa5 Qe8 d8Q Bb7 d7 Nf6 Nac3 Rf8 h8R Nh7 Rh3 Ba2 Nb1 Bh4 Nd2 b1R Nf6 Bad5 Nfe4 Rb3+ Qc3 Bbc6 Ra5 Bb7 Be2 f1B Qb6 f2 d8R Rf7 Ba3 c1R Bb4 Rcb1 Kc2 Rf8 Ng5 Bh1 Bb5 Bbd5 Qcc6 Rf3 Qcc7 Rbb3 Nge4 Rf4 Qc3 g2 Qcc7 Rg4 Re3 Nf6 Qc4 Be2 Rh5+ Kf4 Qbc6 f1N Nf3 Nh2 Be1 Rf1 Nfd2 Rf3 Qd4 Bf1 Rh7 Rf2 Re7 Nh7 Qdb6 Rf3 Nc5 Kg5 Qcc7 R3f7 Nce4+ Kf5 Qc8+
2n1RR2/4B2N/n2n1rr1/1Bb1b3/1PPqk1bp/K1QRq3/Q1b5/N2nn2R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 d5 c4 h5 Kc2 a5 Kb2 f5 b6 h3 g5 d3 g6 f3 b7 d4 g7 f2 Rh2 f4 Rg2 h4 Qb3 d2 Qa3 d1N+ Kb3 f3 Rh2 a4+ Ka2 d3 Bb2+ Qd4 Be2 f1Q Qb3 f2 Na3 d2 Bd3 Rh6 Nc2 a3 Rh1 h2 Qa4 Rg6 Be2 Qh3 Qb3 f1N Bg4 Bc5 Qc3 Nfe3 Bd7 Nf5 Bb5 Qe3 Nh3 Nge7 g8Q Nd6 Ng5 Ra6 Nh7 Bg4 Qg7+ Kf4 e5 Nec8 e6 Ke4 e7 Nf2 Raf1 d1N Na1 Nd3 Rf8 Ne1 Qf7 Rc6 Qf2 Na6 b8R Rf6 Kb3 a2 Ka3 Rg6 Rb7 Rb6 Rd7 Rc6 Rg1 h1B Qe2 Bg2 Rh1 Bf1 Qf2 Bd3 Bc1 Bc2 e8R+ Qe5 Rdd8 Qd4 Bg5 Qe3 Be7 Q5d4 Nb3 a1B Qfd2 Nf7 Rd5 Rcf6 Qf2 Nfd6 Qfd2 Bb1 Qdb2 Bc2 Qa2 Qe5 Rd3 Q5f4 Qd2 Be5 Na1 Qd4 Qc1 Qf3 Qd2 Qfe3 Qc3
q1Nb3q/N1r3br/bRQ3n1/1N2BQ1P/k1K2n2/P1b4R/Brp1r2N/5b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 Ke2 c5 Kd3 b5 h4 f5 h5 g5 d6 Kc6 e5 g3 a3 c4+ Kd4 b3 e6 f3 d3 g4 e7 c3 e8Q+ Nd7 Qde1 c2 Qd2 g2 Bb2 g3 Bc1 b4 Qd1 Kb5 Rh2 f2 Rh4 f4 Qee1 f3 Qee2 b2 Be3 b3 Rh3 Ne5 d7 Nf6 Bc1 Ra7 Kc3 Rc7+ Kd4 Nd5 Bf4 Rh7 Qe4 Bg7 Qf5 Qh8 d8N Ng6+ Be5 Ka4 Nc6 Ndf4 Na7 Ba6 Qd2 Qa8 Qc3 Qh8 Be2 f1Q Nc8 f2 Nf3 g1B Nh2 g2 Bf3 Qe2 Bd5 Qf3 Bf7 Qa8 Qc6+ Ka5 Kc3 f1B d4 Bf2 d5 g1B d6 Bh4 d7 Bd8 Bc4 Bf2 Bf7 Be1+ Kd4 Bd2 Nc3 b1R Nb5 b2 Ba2 Re1 Rb1 Re2 Kc5 Bc3 Kc4 Be7 d8N Ka4 Na7 Bef6 Nb7 Be7 Nd6 Bd8 Re1 b1R Ndc8 Rb2 Rd1 Re7 Rd7 Rf7 Rb7 Rc7 Rb6
B2N3r/3kb3/b1r1NBr1/4q1P1/n1n3QP/nN1R1Qp1/Rq2n1r1/2NK3n b - - 0 1 illegal: No proof kernel
3R2qb/n1Q5/1rQ1b2k/n2qbPN1/bRN1nB1b/Q4pnr/Q1P3B1/6K1 b - - 0 1 illegal: No proof kernel
q2B1R1r/2n1Q3/k3NK2/1nPq1BRN/1Q1pqbrn/2qq4/2Nn1P2/1N5b b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 a5 c4 e5 g4 h5 b4 d5 g5 Kd7 c5 Kc7 g6 Kb7 b6 e3 Kf3 e2 b5 e1Q g7 h3 Ba3 h4 Qd2 a4 Bb4 e4+ Kf4 e3 Ke5 e2 Nc3 a3 Rd1 a2 Qf4 a1Q Rd3 h2 Qf7+ Ne7 g8N h3 Rf3 d3 Qg6 d2 Qh6 d1N Bg2 Na6 Ba5 Nf5 Qf6 Bh6 Qe7+ Nc7 Nf6 Nh4 Nh5 Bf4+ Kf6 d4 Rg3+ Qd5 Nb1 Qd2 Be4 e1N Nf3 Nc3 Bf5 Qd3 Ng5 Nef3 Ne6 Nd2 Rg5 Rg8 Rhg1 h1Q R1g3 h2 Rf3 Be3 Rf4 Qhe4 Rf3 h1Q Rf4 Kb8 b7 Ka7 b8N Bb7 Na6 Rg7 Nb4 Rh8 Rf3 Bf4 Nc2 Bc6 b6+ Ka6 b7 N3b5 b8Q Qac3 Rg1 Rg4 Rg2 Na8 Bd8 Nac7 Rgg3 Na3 Qb3 Nab5 Qb4 Qa2 Qe8 Qee2 Qf8 Qac4 Rh3 Be3 Kf7 Rg2 Rhg3 Q4b3 Rg8 Rg4 Bg6 Bh6 Rf5 Bf4 Qe7 Bg2 Rf8 Qef3 Rf6 Qa8 Rf5 Qbd5 Kf6 Qe1 Rg5 Bh1 Bh7 Qee4 Bf5
2nb3B/nQ3R1N/2rq3r/1p1BQ3/1q1kPK2/q5rr/Q1bN1P1R/4qQr1 b - - 0 1 illegal: No possible last move, all moves rejected
4Kb2/1kBB3b/2pQ3N/Rrb5/1b1PRN1q/6Rb/1nqQ1rPq/q1n3R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 f5 e4 a5 d4 h5 b4 c6 b6 h3 b7 Kc7 e5 h2 e6 h4 b5 c3 e7 c2 e8Q h3 Na3 a4 Be3 c1B Qe2 Nh6 Nb1 a3 Qe4 a2 Q4c2 Bca3 Qe4 Nd7 b8R Nf7 Qb2 Nb6 Qd5 Qh4 Qc1 Na4 Qe6 Nb2 Qd2 Ra5 Bc4 Bac5 Na3 Ne5+ Ke2 Ned3 Kf3 Nc1 Ne2 Rh7 Qh6 Rf7 Rg1 h1Q Be6 h2 Bd7 Rf6 Ra8 Kb7 b6 Rb5 Ra5 Rf7 Rb1 a1B Qd6 Qh7 Nc2 Rf6 Kf2 f3 Kg3 f2 Kf4 f1B Kg5 f4 Bf2 f3 Bg3 f2 Ne3 Qc2 Ng4 Rf7 Nf4 Bd3 Nh6 f1Q Kh5 Rf5+ Kg6 Qfd1 Re1 Qg1 Re7 h1Q Re4 Qh4 Bh2 Nb3 Bg3 Qgh2 Rc1 Qdh1 Rd1 Nc1 Rg1 Rh5 Kf7 Rf5+ Ke8 Rf7 Re2 Bh7 Re4 Rf6 Ne2 Rf2 Nf4 Q4h3 Bh4 Qg4 Bd8 Qgh4 Bc7 Nd1 Ra8 Bc3 Ra3 B3b4 Rg3 Ka6 b7 Nb2 b8R Ka7 Ra8+ Kb7 Bf5 Be6 Ra5 Bc8 Bg6 Bg4 Bf5 Bh3 Rd1 Q1g1 Bd7 Qe1 Qd3 Qec3 Rg1 Qa3 Qc3 Qa1 Qd2
3RRBn1/Kn1N4/pN5q/3q2bn/1Q1P2b1/1Pq3q1/knN1N3/1r2rnQB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 g4 Ke6 d4 Kd5 b6 f5 b7 h5 e3 c5 g5 a6 g6 h3 g7 f3 Na3 h2 Qc2 f4 Bg2 h4 Nb1 h3 Ra3 c3 e4+ Kc4 e5 Qc7 e6 Nc6 b8Q Nd8 e7 Bg4 e8N Nb7 Ra2 Be7 Ra3 Bg5 Qh7 c2 Qd8 Rb8 Nf6 Qe5 Ra5 Kb3 Qf8 c4 Nd7 c3 Rd5 Ka2 Ne2 Qd6 Bd2 c1N Re1 h1Q Nb6 h2 Na3 c2 Bb4 Re8 b3 Qe5 Ng1 Nd3+ Kf1 c1Q Nc2 f2 Rd8 Re6 Qg6 Nb2 Bc6 Qhe4 Ne2 Q4d5 Ba3 Qc7 Qb4 Re4 Kg2 f1N Kf2 Ng3 Kg2 Nh6 g8N Nh5 Nf6 Ng8 Nfd7 f3+ Kf1 f2 Kg2 Bf5 Kf3 f1N Qg7 Qdd6 Bd5 Qh6 Bc6 Re7 Qg6 Be6 Ke4 Bg4+ Kd5 Qg3 Qg7 Re4 Qg6 h1Q Qg7 Na5 Kc5 Rh7 Bd5 Qd2 Qg6 Nb7+ Kc6 Re5 Kc7 Rf7 Kb8 Qdc3 Ka7 Rf3 Be4 Rd3 Bg2 Rd1 Bd5 Rb1 Qg7 Qhg1 Bh1 Q1g2 Qg6 Bh4 Qg5 Qd5 Qe3 Bf6 Qg1 Re8 Qc4 Re3 Bf8 Bg5 Qc5 Rd3 Qb4 Rdd1 Nf4 Rdc1 Ree8 Re1 Ne2
3r2qn/R1n4p/1Bk1Q1n1/P4Bn1/PnN1b3/brRNq3/Q1r1r3/3BBK2 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 gxh4 Bc4 c5 Bf1 cxd4 f4 d5 c4 Kd7 g4 b5 a4 e5 c5 b4 g5 e3 g6 d3 f5 h3 g7 e4 f6 d2+ Ke2 b3 f7 b2 Ra3 h2 Nc3 b1R Qb3 d1R Nf3 d4 Nd5 Nh6 g8Q Bb7 Nc7 Nc6 Qc2 Ne7 Qd2 Rb3 Qg3 Ng6 Qd3 Rc8 Qh3+ Kc6 Bg2 Rd2+ Kf1 e2+ Kf2 e1N+ Qe2 d3 Rg1 h1Q Nb5 e3+ Kf1 Nc2 Qg4 Qh3 Nd6 Nb4 Nc4 Rc2 Bb2 d2 Bc3 d1N Be1 Nc3 Qe6+ Bd6 f8B Nf7 Be7 Qg8 Bd8 Nb5 Bb6 Nc7 Qf2 Re8 Qd2 Rb1 Rc3 Rb3 Qf2 Qg3 Bh3 Rd8 Bf5 Re2 Bc2 Qg5 Bd1 Rc2 Rg2 e2+ Kg1 Qe3 Rg3 Ba8 Nfe5+ Kb7 Nd3 Kc6 Bd2 e1N Kf1 Nf3 Be1 N3g5 Rg4 Rc1 Qa2 Rc2 Rg1 Qg7 Rg4 Rhe8 Rf4 Nfh8 Rf7 Qg8 Rg7 Nb5 Rb7 Nc7 Ra7 Qd4 Qg4 Ree2 Qc8 Kd5 c6 Qe3 Qg4 Ne8 c7 Kc6 c8B Nc7 Qd7+ Kd5 Qg4 Nc6 Nc1 Ba3 Nd3 Nb4 Nce5 Kd6 Qe4 Bd5 Nc4+ Kc6 Qe5 Bf3 Bf5 Be4 Qe6+
Q1qnbb1R/2pbnrN1/1P1Q2RB/3BqBK1/6B1/1r1r2N1/1k1Pr3/4rb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5+ Kh5 a5 b4 f5 g4 h3 e3 h2 g5 c3 b6 f3 g6 c2 b5 a4 b7 f4 b6 f2 g7 f3 Na3 Nc6 b8Q Nge7 Bg2 f1R Qe1 Bd7 Kh4 h5 Qb7 Qc8 Nb5 Kc4 e4 Kb3 e5 a3 e6 f2 g8B a2 Ba3 c1R Nd6 Rc3 Ne2 Nd8 Ng3 Rd3 Kg5 h4 Ndf5 h3 Ng7 Ra5+ Bc5 Kb2 Bh7 Rb5 Bf5 Rbb3 Bd5 Be8 Rc1 a1Q Be3 Rh7 Qe2 Re1 Qa8 f1B Rc6 Qa5 Qf3 Re2 Qf4 Qc3 Qd6 Qe5 Kg4 Bd7 Bh6 Be8 Kg5 Bd7 Rg1 h1R Rc4 h2 Rh4 Be8 Rg2 Rg1 Rh5 h1B Rhh2 Nec6 e7 Bd7 e8B Ne7 Bh5 Be8 Ne6 Rf7 Bg4 Bd7 Ng7 Be8 Rf2 Be4 Rfg2 Bd7 Be6 Bec6 Bd5 Be8 Rh5 Bcd7 Kh4 Re1 Ne4 Rf6 Bd1 Rf7 Bg5 Be2 Rh8 Ref1 Bh6 Rf2 Rg6 Re1 Kg5 Bf1 Bg4 Rfe2 Ng3
B1bRqqN1/RP1q4/1bP1rb2/B4b1r/2q5/k2Q2pQ/B1N2BK1/q4n1n b - - 0 1 illegal: No possible last move
N2Rq2Q/1prbbQ1Q/BrBn2n1/1nq3PK/kPNq4/3R3Q/7n/2q4q b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 a3 b3 exf6 Nc3 f5 Bb2 axb2 Nb1 f4 Kf2 Kd7 Kf3 f5 g4 h5 e4 c5 a4 c4 d4 h3 b4 c3 d6 Kc6 a5 h2 a6 h4 d7 h3 e5 c2 e6 c1Q e7 Rh6 e8B Ne7 g5 Qc5 a7 Ng6 Bc4 Be7 Qd2 Na6 Na3 b1Q Nb5 Qd3+ Qe3 Nc7 d5+ Kb6 d6 Qdd4 Ra3 Rb8 Bef7 Qe8 d8Q Bd7 a8Q Rc8 Rd3 Kc6 Qa2 Kb6 Kf2 f3 Kg3 f2 Nf3 f1Q Bfd5 Qc1 Rhd1 h1Q Bc6 h2 Qb1 Ka6 Nd2 Kb6 Qe6 f4+ Kg4 f3+ Ne4 Qde3 Nd2 f2 Qc2 f1N Qa2 Qf7 Qg8 Qe8 Qf7 Qee5 Qb2 Qed5 Qh8 Qe5 Qhh7 Qg7 Nc3 Nb5 Nd5+ Ka6 Nb6 Rc7 Na8 Qgd4+ Qf4 Qhe4 Qf5 h1N Qe6 Nhg3 Qf5 Bc8 d7 Qh1 d8Q Bd7 Qe6 Ne4 Qff7 Bf8 Qdf6 Be7 Qfh8 Nd6+ Ne4 Nf4 Nd2 Rf6 Qef5 Nh2+ Kh4 Ng6+ Kh5 Ne4 Qh3 Rd6 B6d5 Rb6 Bc6 Nd6 Be6 Qcd5 Nc4 Q5e5 Bg4 Qec5 Be2 Na3 Bd5 Kb5 Bdf3 Ka4 Bc6+ Nab5 Re3 Ne4 Rf3 Bc8 Qh6 Qf6 Rd8 Qfd4 Na5 Bd7 Q6h7 Nd6 Bc4 Qf6 Rd3 Qfd4 B6d5 Na7 Ba6 Nab5 Nc4 Ng4 Bf3 Nh2 Bc6
nB4B1/P1r1R3/b3Bkr1/2pnNqNR/4P3/1nQ1bBrr/K4Q2/3q2rn b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 a4 Ke7 e4 b5 d4 c5 Kd2 h5 Kc2 f5 Kb2 h4 g4 c3+ Ka2 h3 d5 b3+ Ka3 b2 g6 h2 d6+ Kf6 d7 b4+ Ka2 c2 a5 f3 g7 b3+ Ka3 f2 a6 f4 a7 f3 Bb5 f1Q Be3 c1N Qd5 f2 Be2 Na6 Qc4 Ne7 g8B Nc7 Bf3 Rh3 Be6 Ned5 Bf4 Ba6 Nd2 Rc8 Rb1 Na8 Bb8 Rc7 Qd3 Bg7 Nc4 Bh6 Ne5 Be3 Qc3 Rg3 Nh3 Qc8 Be2 Qd1 Bf3 f1R Ng5 Rfg1 d8Q+ Kg7 Bf7 Qf5 Be6 Rh3 Qe8 Rgg3 Qa4 Kf6 Qad4 Bd2 Qf2 Be3 Rg1 h1N Rg2 Rh6 Rh2 Rg6 Rh7 Rh3 Re7 Rg3 Ra1 b1R Ra2 b2 Ra1 Nb3 Ka2 Rc1 Rb1 Qd3 Ra1 Rc2 Rg1 Re2 Rg2 Re1 Rh2 b1R Rhh7 Reg1 Rh5 Rh6 Ngf7 Qd1 g5+ Kg7 g6 Kf6 g7 Rhg6 g8B Rc1 Qcb2 Rc3 Ng5 Rc2 Qe1 Rh2 Qbf2 Rhh3 Qc3
1K5N/Rnnq2Nk/4bRnN/rr6/1b1Pr2B/bNQ2pP1/2B2q2/3r1Qn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 Kf7 b4 Kg6 e4 h5 d4 c5 g3 a5 b6 a4 b5 h3 b7 h4 e5 h2 b6 h3 e6 a3 e7 c3 e8Q+ Kh7 Bd2 a2 Qd7+ Ne7 Be1 c2 Ba6 c1N Ne2 c4 Qc7 c3 Rf1 h1R Bd3 c2 Qc3 h2 Nd2 Be6 Nb3 Na6 b8N Ng6 b7 Nc7 Bd2 Qd7 Nc6 Bb4 b8N Ra5 Ne5 Re8 Nbc6 Rb8 Be3 Rbb5 Ng4 Rg1 Nce5 h1R Be4 Rh4 Nf7 Nd3 Qde1 c1N Nh8 Nc5 Nh6 Nb7 Bc2 Rgh1 Qf2 Rg4 Qg2 Ba3 Rf2 Rd1 Qf1 Rh4 Ng1 Rg4 Nh3 Ne2 Ng5+ Kg7 Ngf7 Kh7 Nd6 Rh4 Ne8 Ng1+ Kg2 Rg4 Ng7 f3+ Kh2 Bc1 Bg5 Re4 Bh4 Ba3 Kh1 Bb4 Kh2 Ne2 Kh3 f4+ Ngf5 Ba3 Kg4 Ng1 Kg5 Bb4 Kf6 Ba3 Ng7 Bb4 Rc1 a1B Rb1 Bb2 Ra1 Ra8 Ra7 B2a3 Rd2 f2 Rd3 Ree5 Rf3 Re4 Ra6 Ra1 Qh3 f1Q Qg2 Qf2 Qf1 Rd1 Ra4 Bc4 Ra6 Ne6 Ra4 Qd5 Kf7 Ra6 Ke8 Qf5 Kd7 Nc7+ Ne6 Qf7+ Kc8 Qd7+ Kb8 Ra7 Ng7 Bf7 Ra6 Be6 Rd6 Ra4 Ra6 Raa5 Ra7 Re2 Re3 Ree1 Re4 f3 Rf4 Re4 Rf6
N1Bq4/1r3n2/1NQ2k1B/1q1R1p2/3KQ3/bQPb2rQ/1q2RPn1/n2r2nq b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 Ke2 e5 Ke3 Ke7 d4 h5 g4 a5 g5 f5 d5 b3 b6 b2 b7 a4 g6 h3 d6+ Kf6 d7 h4 Nc3 b1Q g7 h2 Ba3 h3 Qd5 Rh7 Qb3 Qe8 Qa2 Nc6 b8Q Nd4 Bc4 Ba6 Qbb2 Ne2 Qb8 Nh6 Bd6 a3 g8Q Bb5 Qg4 Qb2 Qb1 a2 Bb3 Ra3 d8Q+ Re7 Qh5 Nf7 Qdc7 Qd8 Qc6 Rd7 Qg4 Ba6 Qbb6 Rb7 Nf3 Bc4 Rc1 h1R Nd2 h2 Na4 Ba6 Qf3 Rf1 Qg2 h1Q Rd1 Ng1 Re1 Be7 Nc4 Bf8 Qh3 Bb5 Kd2 e3+ Kd3 e2 Ke3 e4 Bf4+ Bd6 Rd1 e1N Bh6 Qe5 Qd4 Ba6 Qbb2 Bb5 Rab1 a1N Qbc3 Ba6 Rb2 Bb5 Na5 Ba6 Be6 Be7 Nc4 Ng2+ Kd2 e3+ Kd3 e2 Bc8+ Bd6 Qde4 e1Q Rd2 Qd1 Rb5 Qb1 Rd5 Bb5 Re2 Rc1 Nb6 Ba6 Na8 Qb2 Rb5 Re1 Ncb6 Rd1+ Kc4 Rb3 Qb4 Rbd3 c3 Rg3 Qb3 Qee8 Qd7 Ba3 Qdd5 Rc1 Kd4 Rd1+ Rd2 Qc6 Rc5 Bd3 Re2 Qb5 Qd7 Re3 Rd5 Rg3 Qc6+
1b2nR2/1b2nNb1/5r1r/n2p2K1/B1PN2B1/k1nQB1qq/P1R5/B1b2Qr1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 Ke7 Kg3 f5 Kf4 g5+ Kg3 b5 e4 d5 h4 f4+ Kf2 b3 c4 b4 e6 Kd6 e5+ Kc5 e7 g3+ Kf3 d3 e8B d2 h5 b2 e6 g2 Kg4 b3 h6 Kb4 h7 f3 Kf5 g4 Bb5 f2 Rh6 g3 Rf6 Nd7 e7 Qc7 e8Q Bg7 Rc6 Ndf6+ Qe6 Bb7 Kg5 Rf8 Be2 f1Q Nf3 g1B Qd7 g2 Bd3 Ne8 Kh5 Be3 Kh4 g1B Bf5 Rf6 Ba4 Bh2 Nd4 Ne7 Nc3 b1R Bg4 b2 Ne4 Ka3 Qf5 Qg3+ Kh5 Qff3 Qf1 d1N Ng5 Nc3 Nf7 Bg5 Be3 Re1 Qe2 b1N Qfd3 Nd2 Qf1 Nb3 Rc8 Na5 Rc1 Qh1 Rc2 Rd1 Bg1 Bc1 Be3 Qhg2 Kg5 Q2h3 Qg2 Rg1 Qgf1 Rf8 h8B Rh6 Nd6 Rff6 Nf7 Qf3 Rd8 Bb8 Rc8 Qfg3 Rd8 Nd6 Rf8 Ne8 Bb5 Rb6 Qff5 Bge5 Nb3 Ne2 Qf1 Ba1 Bd4 Rbd6 Ba4 Rde6 Bb6 Bg7 Bd4 Ref6 Ba1 Nc3 Nd4
1r1r1Q2/7R/Rr2q1n1/bp1n1Q2/b1qq2P1/1q1PN2Q/1bB3bN/BK3Q1k b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Kd7 g4 Kd6 a4 Ke5 a5 h5 a6 f5 a7 c5 d6 h3 d7 b3 Ra3 b2 Be2 h2 Bb5 f3 Ne2 f2+ Kf1 c4 Rg3 h4 Ba6 f4 Rh3 c3 Rg1 h1Q Na3 b1R Qe1 c2 Bc4 Ne7 Bg8 Qf3 Rg2 Nbc6 Rgg3 Rb6 Bf7 Ng6 Ng1 Bb4 Bb3 Rb8 a8Q Nce7 Qa5+ Nd5 Bb2+ Qc3 Ke2 c1B Kd1 f1B Rf3 Bg2 Ba1 Bb2 Bc2 Qb3 Qf1 Kd4 Rf2 f3 e5 Rg8 Re2 f2 e6 Qf6 d8Q Bd7 e7 Ba4 e8Q Qe6 Qab5 Ba5 Nc4 Rf8 Rh1 h3 Qh4 h2 Ne3 Ke5 Qee7 Kf4 Nf3 Rfd8 Qh6+ Kg3 Qef8 Nc7 Qbf5 Nd5 Rg1 h1Q d3 Qh4 Rd2 Qhf6 Rh1 Qd4 Qhh8 Qdc4 Rh7 Qd4 Nh2 Qbc4 Qe2 f1Q+ Qe1+ Qf2 Qf1 Qb3 Re2 Qff4 Rd2 Qdc4 Rf2 Qfd4 Re2 Bbc3 Kc1 Bb2+ Kb1 Ra6 Rf2 b5 Qe4 Rc6 Rf6 Rcb6 Qef5 Bf3 Qh3+ Kf2 Qhg7 Kg1 Qc7 Kh1 Qcf4 Bg2 Qff3 Qg8 Rc6 Qe6 Qe2 R6b7 Ra6 Rb6 Qef1+
2NQ4/1b2bB1Q/1B2Rqp1/3P2k1/n2rbnr1/1Q1Pb3/3Q2qr/K1Nq1r1R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Ke7 e4 Kf6 a4 b5 a5 c5 h5 f3 e5+ Kg5 e6 f5 a6 g3 e7 c4 e8Q b3 a7 g2 h6 b2 h7 g6 Ra4 f4 Rh3 f2+ Ke2 b4 Na3 b1B Qe1 c3 Kd1 f3 Nb5 b3 Ra6 b2 Q8e4 Bb7 Rh4 Be7 Qd4 Nf6 Nd6 Nbd7 Qb6 Nh5 Nc8 Be4 d3+ Nf4 Kc2 Nc5 Kb1 Na4 Ne2 g1R Bh3 f1Q Qb3 f2 Be3 Qg2 Re6 f1R Nc1 c2+ Ka2 Qf8 Qd2 Qf6 Bb6 Rb8 Bf5 Ra8 Rh1 Rb8 Nd6 Rbc8 a8Q Rc4 Qd8 Rd4 Ne2 c1B Nc8 Qh2 Kb1 Rg4 Ka2 Qg2 Kb1 Re8 h8Q Rf8 Qh7 Rh8 Qdb4 Be3+ Nc1 Ne2 Qd2 Nf4 Qg7 Rh2 Qh7 Qg3 Rc6 Qg1 Be6 Qg2 Bf7 Rb4 Ka2 b1Q+ Ka3 Qc2 Re6 Qd1 Ka2 Rd4 Ka1
1N5Q/1BBq1R2/n2p4/1P1r1Q2/n1bbB3/1q4R1/n1q1qP1K/bbNk1Br1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 g4 Kf7 b4 Ke6 c4 Ke5 c5 h5 b6 a5 g5 h3 c6 h2 c7 d6 g6 a4 b5 d3 g7 Kd4 b7 e5 Nd2 Kc3 Nb3 e3 Na5 d2+ Ke2 e4 Bg2 h4 Kf1 h3 Qf3 Kc2 Qe2 a3 Bf3 a2 Qe1 d1Q Ba3 Nf6 g8B Be6 c8B Rh5 Ne2 Nfd7 Bc5 Nb6 Bh7 Bc4 Ba3 Bg7 Bd7 Bd4 Rb1 a1B Bdf5 Na6 b8Q Qd7 Nb7 Na4 Qh8 Rg8 B5g4 Qd3 Bb2 Qb3 Na5 Rf5 Rg1 h1Q Qg7 Qh2 Rh1 Qf4 Qh8 h2 Kg2 Rc5 Bc1 Qff5 Bd2 Rg7 Rd1 Qg6 Rg1 h1B+ Kh2 Rg8 Nc1 e2 Nc6 e3 Ba5 Qe4 Bc7 Re5 Qf1 e1Q Qg2 e2 Rd3 Qec3 Kh3 e1N Nb8 Qe2 Bb7 Rd5 Rf3+ Nd3 Rf7 Kd2 Qe4 Ndb4+ Kh2 Na2 Qb1 Be4 Bh3 Rg4 Bf1 Kd1 Qd3+ Qcd2 Qh3 Bb1 Be4 Qdc2 Rg2 Rgg5 Qf5 Rg7 Rg3 Rg4 Rc3 Rg1 Rg3
5n2/1bQ2N1k/1rPq4/4qp1K/P1QrRBnb/b2B1b1B/1B4r1/1R3nNr b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 b5 Kf3 f5 c4 Kf7 a4 d5 h4 g5 e4 Kg7 c5 b3 h6+ Kh7 c6 g4+ Kf2 b2 e5 b4 h5 g3+ Kf3 b3 e6 d3 e7 g2 e8B d4 Rh2 d2 Rh1 d3 Ra2 Nd7 Be2 Ngf6 Rh4 Ba3 Ra1 Nf8 Nc3 b1Q Ne4 b2 Qb3 d1R Qc4 d2 Bd3 Bb7 Nd6 Ng4 Nf7 Qc2 Rb1 Qd6 Nh3 Rh1 Ng1 d1R Bd2 Ra6 Be3 Rb6 Bd2 Kg8 h7+ Kg7 Be3 Rg8 h8B+ Kh7 h6 Qc3 Bf6 Qce5 Bg7 Kg6 h7 Rd2 h8Q Rd1 Ne2 g1B Bc1 Bgc5 Ng1 Bf2 Bh6 Rd2 Qf6+ Kh7 Qd8 Rd1 Qc7 Rd2 Bd7 Be1 Bc8 Rd1 Bf1 Rd4 Bh3 Rg7 Be6 Bg3 Bd5 Bf2 Be4 Be1 Ra1 b1B Bd3 Bc2 Bb2 Bd1+ Kg2 Rg8 Rb1 f3+ Kf1 f2 Kg2 f1N Bg5+ Nh6 Re4 Ng4 Bf4 Ngh2+ Bg4 Bh4 Kh3 Bf3 Bfc1 Be7 Bf4 Rg5 Kh4 Bd8 Bh3 Rg2+ Bg5 Ng4 Kh5 Be7 Be3 Bh4 Bf4
rB2NN1Q/2Q5/rbpq1rbK/6R1/4P2P/nB1qbR2/3rk2n/R1bn2R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Kd6 d4 f5 h4 g5 b4 a5 d5 Ke5 b6 c3 b5 c6 d6 a4 b7 f3 Ke3 c2 d7 f2 b6 f4+ Ke2 a3 Nd2 Kd4 Rh3 g3 Kf3 g2 Kg4 a2 Ra3 f3 Ra5 Ke3 Ba6 f1R Ba3 c1B Nb3 f2 Rb1 a1R Bb2 Nf6+ Kf5 g4 Kg5 g3 Be5 Bc5 Nh3 g1Q Bc4 g2 Nd2 Qh2 Qh5 g1B Nf4 Na6 b8Q Nc7 b7 Bb6 Bb3 Nb5 Qc7 Na3 b8R Nd5+ Kg6 Rf8 Kh6 Rd1 Ne6 f1N Nc4+ Kf2+ Bf4 Rd2 Nd6 Nc3 Ne8 Nd1 Rg5 Qh3 Rb7 Nh2 Ra7 Qd3 Raa5 Qe7 d8R Qed6 Rd7 Kf1 Rf7 Bge3 Be5+ Ke1 Rf3 Ke2 Bf4 Ra6 Rg1 Raa2 Rag5 Rf7 Ra1 Rf6+ Qg6 Ra8 Nf8 Bf5 Bg3 Nc4 Be5 R2a6 Bf4 Na3 Be5 Re6 Qf6 Bg6 Qh8 Rf6 Qa7 Qe6 Bb8 Qed6 Qc7
5B1r/qbq4R/P1bpRPbk/rQ6/B1n5/Nn3R1q/1b3nN1/nQR2K2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 c4 Kf7 a4 Kg7 f4 e5 g4 b5 f6+ Kh6 a5 e4 f7 h3 c5 b3 c6 d3 f5+ e3 c7 h2 f6 b2 Qa4 d2+ Ke2 d1N Nd2 b1Q Qe4 b4 Qb7 b3 Qa6 b2 Bh3 Ne7 Qd3 Nf2 Ndf3 Nf5 Ra3 Nc6 Ne1 Bb7 c8R Qa1 Qb1 Nfd4+ Kf1 Ne5 Nc2 Nc4 Nf3 Qc7 Nfe1 Nb3 Re8 d6 Rg1 h1B Re6 Bhc6 Ng2 Bg7 f8Q Qa2 Qa1 b1B Qb8 Ra6 Qe5 Qa1 Rh1 Qd4 Qb5 Qa7 Ra2 Bf8 Na3 Bg6 Rd2 Bg7 Rd4 Bf8 Rf4 e2+ Kg1 e1N g5+ Kh5 Rf3 Nc2 Kf1 Bh6 Bd2 Nca1 Rg1 Bc2 g6+ Bg5 g7 Bg6 g8R Kh6 Rg7 Be3 Bb4 Bd4 Bf5 Be5 Bc2 Bb2 Bc5 Kg5 Rh1 h5 Bd1 h4 Be3+ Kg4 Bd2 h3 Bh6 h2 Rg1 h1Q Bc2 Nc5 Ba4 Qh3 Rh1 Kh5 Rg1 Bd4 Qb1 Ncb3 Rh1 Rb6 a6 Rb5 Qe8 Ra5 Qd7 Bce4 Qb5+ Be5 Rg8 Bed5 Bf8 Bb2 Rg7 Bc6 Ke2 Kh6 Rc1 Bb7 Kf1 Bdc6 Rh7+
3n2NK/1qrP4/4nn2/1qR2qb1/r2Q2RQ/1r1BP2N/2p1qBr1/2kB1B1b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 c5 d4 b5 g4 h5 a5 f5 d6 f3 g5 h3 g6 f2 d5 b3 d7 h4 a6 h2 d6 h3 a7 b4 g7 b2 Be3 b3 Qe1 f4 Kf5 f3 Kg6 Qe7 d8Q Rh7 Bc1 Qb7 Qf6 Be7 Bg5 Nc6 Bg2 f1Q e3 Kd3 Qe6 Kc2 Ra2 f2 Ra1 c4 Bh4 c3 Bg3 Qfb5 Kf7 f1Q+ Qf2+ Kc1 Bh4 Nf6 Qd5 Qfe2 Nd2+ b1R Ra4 b2 Bf1 Nd8+ Kg6 Bd7 g8B Bc6 Ne4 Rg7+ Kh6 Rg2 Bh7 c2 Qd4 Qf5 Rc4 Rc8 a8B Rc7 d7 Qbb5 Qg3 Ra1 Kg7 b1R Rc3 Ra4 Kh8 Rb3 Rc5 Bd5 Qg5 Bc6 Bf2 Bd5 Nf3 Bc6 Rg1 h1N Qh6 h2 Qh4 Ng3 Nfg5 h1Q Nh3 Ngh5 Bg6 Nf4 Bh5 Ng4 Nf6 Nfe6 Ng8 Bg5 Bb7 Nf6 Ba6 Rh2 Rg3 Qhf3 Rg4 Rg2 Rc4 Q3d5 Rc3 Qb7 Bd3 Qdb5 Rc5 Rg1 Rg3 Bh1 Bf3 Rg2 Rg4 Qd2 Bd1 Qe1 Re5 Qe2 Rc5
2R5/1QQp1Q2/1K1b4/Nn1b2nr/3B4/q1nBP1RQ/Nr1nk1Pr/2rq1b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 c4 Kd6 b4 Ke5 e3 Ke4 c5 h5 b6 f5 b5 a5 b7 h3 c6 a4 b6 h2 c7 a3 Nh3 d3 Qd2 h4 Rg1 h1Q Ra2 f3 Bb2 f4 Bg7 Bd6 Ba1 Qf8 Bb2 Na6 b8Q Bb7 c8Q Nc7 Be2 Rh5 Bf6 Nb5 Qcc7 Nh6 Bd4 Bd5 b7 Nf7 Rf1 Ng5 Ng1 h3 Rc2 a2 Na3 a1R Nc4 h2 Na5 Rc1 Rc4 Ra7 Qa2 d2 Qb3 Qe7 Qh8 d1N+ Ke1 f2+ Kd2 f3 b8Q Ndc3 Qbb7 Ra6 Rc6 Rb6 Qc4 Kf5 Bd3+ Kg4 Ne2 Qg1 Qb4 h1R Qc4 R1h2 Rc5 Bc6 Qf7 Bd5 Qcd8 Qf8 Rc8 Qh1 Qdc7 Qe7 Rg1 f1B Qhh7 f2 Rg8 Ra1 Nc1 Kg3 Na2 Re1 Kc2 Rc1+ Kb2 Be2 Qh8 f1N Rc8 Nd2 Rf1 Qf8 Rf6 Qd1 Rg6 Bf1 Qh6 Qf3 Rg7 Kf2 Qh8 Ne6 Rg3 Ng5 Qhh7 Ke1 Qhf5 Qe2 Qh3 Qd1 Bc5 Nd4+ Ka3 Ndb5+ Kb4 Qe7 Nc6 Qf8 Ka5 Qe7 Bd4 Qf8 Bf5 Ke2 Be4 Na7 Bb1 Rb2 Bc2 Nab5 Kb6 Be5 Bg6 Qa3 Na5 Bd6 Bd3+
4B1N1/Q1pN1n2/nP1k1qPq/1Q3bb1/2N1b2r/rr2n3/R5nB/2RrN1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 h5 b4 a5 g4 f5 d4 a4 g5 c3 e5 h3 g6 h4 d5 c2 b6 h2 d6 f3 b7 h3 b5 a3 b6 f4 Qd4 a2 Qe4 Ra3 Qe1 Qf6 Qd1 Bh6 Nd2 Na6 Ne4 Bg5 b8N+ Ke6 d7 Nh6 Bb5 Nf7 Qe1 Rh4 Qa5 Rb3 d8N+ Kd5 Ndc6 Bf5 Bb2 c1R e6 Rd1 e7 Ke6 Rc1 a1R Ne5 Raa3 Nbd7 Kd5 Bc3 Ke6 Be1 Kd5 Kf1 f2 Ngf3 Ke6 Rg1 h1B Rg2 h2 e8Q+ Kd5 Qa8+ Ke6 Qa7 Kd5 Ke2 f1N Bg3 Ne3 Ne1 f3+ Kf2 Ke6 Bc6 Ke7 Qb5 Ke6 Rg1 Ng2 Ra1 Ke7 Ra2 Ke6 Kf1 f2 Bf4 Qg7 Nef6 Kd6 Ng8 Qf6 Ke2 f1N Kf2 Nfe3 Bg3 Nf4 Rf1 Bhe4 Rg1 h1Q Bh2 Qh8 Rf1 Qf3+ Kg1 Qf6 Nf8 Qh3 Be8 Nfg2 Nfd7 Nb8 Rff2 Na6 Rfc2 Rf4 Rc4 Qh6 Rc1 Rh4 Nc4+
1R2bBq1/1P1n1N2/q1brRn2/4pk2/1b3B1P/2n5/1QN1Q1bq/2KBqr1B b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 h4 Kg6 f4 a5 c4 e5 b4 d5 b6 d3 b7 a4 b5 d4 b6 e3+ Ke1 e2 Kd2 a3 c5 a2 c6 g3 c7 g2 Rh3 Bb4+ Nc3 Kf5 Qb3 g5 Qf7+ Nf6 Qh5 Ra6 Rh2 Bd7 c8B Rf8 Qh6 g4 Nh3 g1N Ng5 g3 Qh5 g2 Qf3 Qe8 Nf7 Qd8 Rb1 a1Q Rh3 Qe8 Rg3 Qe6 Rg6 Bc6 Rb3 Nbd7 b8Q Qd5 Bb7 Qe6 Ng5 Qg8 Nf7 Qa3 Bb2 Qa2 Kc1 e1Q+ Nd1 Qa4 Qe2 d2+ Kc2 Qb5 Bc1 d3+ Kb2 Ra2+ Kb1 Qa6 Rh6 Ra1+ Kb2 Rd8 Ne3+ Ke6 Rg6 d1B Nc2 d2 Ba8 Kf5 Qb7 Nh5 Re6 Nhf6 Qb8 Nh3 Qb7 g1Q Bg2 Ng5 Bh1 Bg2 Qb8 Qh2 Bf3 Nge4 Qb7 Nf8 Bh5 Rd6 Qb8 Nc3 Bg4+ Kg6 f5+ Kh7 Bh5 N8d7 b7 Nc5 Qf3 Qc6 Nd4 Rd7 Qd8 Qeg3 Ra3 Ba4 Qg4 d1B Bf4 Bb5 Ra8 Bdf3 Rb8 Rf1 Qa5 Qb6 Nc2 Rd6 Qa3 Be8 Qb3 Bfc6 Qd1 Q8g6 Kc1 Qa6 Qb2 Ncd7 Qe1 Qf2 Bd1 Qg8 Qe2 Qe1 Nd8 Nh5 f6 Kg6 f7+ Kf5 f8B Nhf6 Nf7
1KN1R1Q1/1P1bNn1B/3Bp2N/1R6/2q2b2/1b1r1Q1k/P2Nb1r1/1n1qqq1r b - - 0 1 illegal: No proof kernel
2qQ1N1B/P1b1K2P/q2n3B/Npq1RB2/bBq1Q1b1/1r6/1b1n2nr/3R3k b - - 0 1 illegal: No possible last move, all moves rejected
1bRbb3/5BK1/N2n2b1/nn1nnrqQ/2P1Q2p/3N1n1P/5R1B/3kNr1N b - - 0 1 legal: proof: e4 b5 b4 f5 g4 fxg4 a3 d5 a4 dxe4 axb5 c5 Bb2 cxb4 Ba3 Nd7 Bc1 Nb8 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 g5 c4 a5 d4 a4 f4 e3 b6 b3 b7 a3 f5 e2 f6 e1N f7 b2 d5 a2 d6 Bd7 Qd3 g3 Qg6+ Kg4 Nd2 b1B Qd3 h5 Qe3 h4 Qa3 g2 Qe3 Bg6 Ndf3 Be8 d7 Nh6 Bd2 Nd3+ Ke6 Nb4 Ne1 N8a6 b8N Nc7+ Ke5 Ra5+ Qc5 Nf5 Rd1 a1N Be3 Nbd5 Bd3 Nd6 Be4 Ncb5 Nd3 Nb3 Ne2 g1N Bg2 Nf3+ Ke6 Ne5 Bf4 Rh6 Bh3+ Kf3 Na6 g4 Ng3 Rh5 Rhg1 Ra1 Rd2 Rf1 Nh1 g3 Rdg2 Qa5 d8N Rf5 Nc6 Bh6 f8Q Bg5 Rd2 g2 Ncb4 Qd8 Nc2 Na5 Qd4 Bf6 Qh8 Bg5 Rd1 Ke2 Nce1 Bf6 Rb1 Bg5 Rb2+ Kd1 Qe4 Bf6 Ng3 Bg5 Rf2 Bf6 Rh1 g1N Qh5+ Ngf3 Bg2 Qc7 h3 Qc5 Rg1 Qe3 Bh6 Qg5 Nh1 Qg4 Nc2 Nd7 Nc1 Ndc3 Qd5+ Nd2 Bf4 Ndb7 Nc7 Bh7 Qh6 Bh5 Be4 Qg7 Nd3 Nf3 Rg3 Be5 Na6 Bb8 Rg4 N7d6 Rg3 Qg4 Bc1 Qf4 Rg7 Qg5 Bd2 Be8 Qh5 Bhg6 Qe5 Nb6 Bb7 Nd7 Bc8 Nd5 Bf4 N7f6 Bh2 Ng4 Qf4 Bef7+ Kd7 e5 Rg8 e4 Rf8 e3 Qe4 e2 Nce1 Na7 Rd8 Be8+ Ke6 Nge5 Bd7 Nab5 Rc8 Nb3 Ng2 e1B Bc6 Ba5 Nge1 Nf6 Bd5 Bac7 Ke7 Bd8+ Kf8 Na5 Bf7 Nd5 Kg7
3nK3/1R6/3b1bBP/Q1qb2N1/1pr1b3/Rnr1N2Q/1PbNkB2/3rbr1N b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 cxd5 hxg4 a5 Nc6 a6 Nb4 Bh3 Nxa6 Bg2 Nb4 Bf1 Na2 Kf2 Ke7 d4 Kf6 e4 Kg5 e5 c5 d6 b5 d5 f5 d7 a5 h3 a4 e6 b4 e7 a3 e8Q c4 d6 c3 Qf3 c2 Qf7 g3+ Kg2 Qa5 d8N Be6 d7 Bd6 Ne2 Qc5 Nbc3 Ne7 Nd1 Bd5 Qe6 Rc8 Nc6 Rhf8 Ncd4 Nc6 Rb1 Nd8 Bd2 c1R Rg1 Rc4 Qg8 Nc1 Nc2 a2 Qe4 a1R Kf3 g2 Nce3 Nb3 Ndc3 g6 Rh1 g1B Be1 Bf2 h4+ Kh5 Rg1 g5 Qe6 Bg3 Bf2 g4+ Kg2 Rc7 Re1 Rd1 Nb1 Rf7 Nd2 Rf6 Rh1 Rc3 Rh3 f3+ Kg1 f4 Q4e5+ Rf5 Bg2 Qb6 Kh1 R7c4 Rf1 Be4 Qa5 Qc5 Kg1 Be7 Kh1 Bf6 Re1 Bh2 Bf1 g3 Bg2 Kg6 h5+ Kg5 h6 Bc2 Bg1 f2 Be4 f1B Bf2 f3 Bd3 Nb7 d8N Rff4 Bg6 Be4 Nd4 Bfd3 Ndf5 Bc2 Rg1 Rg4 Re1 Kf4 Nf7 Nd8 Ng5 Bd5 Qc8 Bde4 Nef1 Bd5 Re7 Rh4 Ne3 Rh5 Nf7 Rf5 Rb7 Bce4 Qd7 Bc2 Nb1 Ke4 Ng5+ Kd3 Nd2 Ke2 Rh4 Re5 Qh3 Re8 Re4 Rf8 Re6 Bde4 Ra6 Bd5 Qb6 Bce4 Ra3 Rf7 Qa5 Rf8 Bg1 f2+ Ndf3 Bh8 Kg2 Rf6 Qe6 Rf4 Kh3 g2 N3d2 Bf6 Qc8 Rf3+ Kg4 Bd6 Ng3+ Ke1 Kh5 f1B Bh7 Bfd3 Nh1 Ke2 Qh3 Rff1 Bf2 Bc2 Bf5 Qb6 Kg6 Qc5 Bg3 g1B Bh4 Ne6 Kf7 Bf2 Ke8 Be1 Bf2 Nd8 Bg6
Q1b4Q/n2b1B1r/2R1p3/1krB1bKb/3Pq3/nPB2NR1/n6b/b1BN1n2 b - - 0 1 illegal: No proof kernel
2bkb1n1/q7/R1p1R1br/1b2rr1P/4n2B/r4P2/1NBb1QNB/1KbQ2B1 b - - 0 1 illegal: No proof kernel
R1K1Br2/1PB2brN/Q6k/bnprBr1q/r1n3Q1/P1b2B1r/4R3/3Nb3 b - - 0 1 illegal: No proof kernel
1b1Br2q/2N1nb2/1bRn1rrQ/p2Q1nPK/1r1R1k2/1bR5/2B1RP2/1n4N1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 Kf7 g4 Kg6 c4 h5 b4 d5 g5 Kf5 c5 e5 b6 e3 Kf3 e2 b7 e1B c6 h3 c7 h4 b5 e4+ Ke2 h2 b6 d3+ Ke3 h3 Qa4 d2 Qc4 d1B Qa2 Rh4 Ba3 Ne7 Nd2 Na6 b8R Be6 c8Q Nc7 b7 Bb3 Bb5 d4+ Ke2 d3+ Ke3 Ne8 Bc5 Nd6 Nf1 d2 Bd4 d1N+ Ke2 e3 Kf3 e2 Qb2 Ba5 Rc1 e1R Ba4 Bb6 Bf6 a5 Qd4 Ra6 Rc6 Nc3 Qd5+ Re5 Qc7 Bf7 Rc8 Rb4 b8R Nb1 Rc3 Bg7 Qcc6 Qh8 Rd8 Bf8 Rbc8 Bg7 Nd2 Bf8 Nc4 Bg7 Na3 Bf8 Ne2 Bg7 Rd1 h1N Rd2 h2 Nb5 Ng3 Nc7 h1R Ng1 Rh6 Re2 Rg6 Rd7 Ng8 Bd8 Ne7 Qcc4 Bf8 Qh4 Rf6 Qh6 Rg6 Kg2 Kf4 Kh3 Bg7 Kh4 Ngf5+ Kh5 Ree6 Bb5 Be5 Bd3 Ra8 Bc2 Ref6 Na6 Rb8 R8c6 Rc8 Bc7 Rcg8 Bd8 Re8 Nc7 Ne4 Na8 Bb8 Nc7 Ned6 Qe6 Nb7 Rdd3 Nbd6 Qd5 Ba2 Rd1 Bb3 Rd4+
7n/3r3N/1P1k2rB/qp4Bb/RP2Nb1R/1Nn1rQ2/2K3nb/Q3rbNn b - - 0 1 illegal: No proof kernel
2Kn1k1b/r7/Pr1Qn1qb/rNn1Q3/1R2B2P/2BBp3/Nb1B4/3bRrn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 e5 Kd3 d5 a4 g5 c4 b5 h4 e4+ Kd2 g3 f4 b3 a5 d3 Ke3 g4 Kd4 b2 Ke5 b4 a6 g2 f6 b3 c5 d4 f5 g3 c6 d2 c7 d3 Ra3 Nh6 Qg4 d1N Nh3 g1B Nf4 d2 Ra5 g2 Ng6 Nc3 Bc4 d1R Bd5 Nb5 Nc3 b1N Na4 b2 Qg3 Ra7 Qc3 Nd7+ Ke6 Rf1 Nf4 Nd2 Ne2 b1R Nd4 Nf3 Bd2 Nf7 Qc5 Rb2 Nc3 Rh5 Na2 Bh6 Ra4 Bge3 Bb7 g1B Qe5 Kf8 Rb4 Bef4 Bc3 Bc1 Ba8 e3 Be4 Bh2 Rg1 Bb7 c8B Rb3 Bd2 Bb2 Bd3 Bc6 Bb7 Qb6 Rh1 Ng1 Ba8 Nc3 Nb5 Nd8+ Kd6 Rg5 f7 Bf3+ Bc6 Nce2 Bc3 Qa5 Bce4 Nd4 Bd2 Nc5 Bc3 Ncb7+ Kd7 Qb6 Kc8 Bd1 Bd2 N4e6 Bc3 Ke7 f8B+ Kf7 f6 Nbc5 Bg7 Rgf5 Bh8 Kf8 f7 B2f4 Bf6 Bg7 Bd2 Bfh6 Qb8 Bh8 Bfc3 Qd6 Qc7 Qg3 Qe5 Qg7 Rh2 Qg6 Re2 Rf6 Re1 Ra3 Nd6 Ra4 Nb5 Ra5 Qg3 Kg7 Bg2 Nd4 Bge4 Rb6 f8Q+ Kh7 Bc1 N4e6 Qfd6 Kg8 B1d2 Kf7 Qge5 Ke8 Qd7+ Kf8 Qdd6+
1RQ3b1/1b1Bq3/1n1q2b1/1RPN1p1B/Q2BbP2/1bB1b1K1/2r3br/2q1kN2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 Bd2 axb4 Bc1 g5 e3 gxh4 Rh2 d5 Rh3 d3 Rh1 d4 e4 Nd7 Bf4 Ndf6 Bc1 Nd5 exd5 Ra5 Rh2 Ra7 Rh1 Ra8 c4 Kd7 a4 Kd6 f4 Kc5 Kf2 h5 g4 e5 a5 b5 a6 b3 g5 Kb4 d6 h3 d7 b2 a7 h4 g6 d2 g7 d3 Nf3 e4 Nd4 h2 Kg2 h3+ Kg3 e3 Bg2 e2 Ra5 e1Q+ Kg4 Ne7 g8B Nd5 Ne2 Bc5 Bh7 Bb7 Rg1 h1Q Ra3 h2 Ng3 Qee7 Nc3 b1B Qf1 d1B+ Qe2 d2 Bb2 Nb6 Bhe4 Be3 c5 Bb3 Bd3 d1B Bc4 Bg6 Nf1 f5+ Kg3 Qc7 d8B Qcd6 Bd3 Bg8 Ra5 Bdb3 Qd1 Rh7 Bde4 Kc4 Bh3 b4 Bc6 Rb8 Qa1 Kd3 Nd5 Ke2 Qa4 Ke1 a8Q Rh8 Rg2 Qg1 Bg4 h1B Bc7 Rh2 Rb5 Re8 Bd7 Rd8 Nd2 Qf1 Rf2 Bg2 Bd4 Qc4 Nf1 Qc1 Rb2 Re8 Q8a7 Ra8 Qb8 Ra5 Qa1 Ra2 Rb1 Rc2 Qa4 Bc4 Qf8 b3 Bh5 b2 Qc8 Bb3 Bd8 Qe4 B8f6 Qee7 Ra1 b1B Ra2 Rc4 Rb2 Bbe4 Bg7 Rc2 Bc3+ Bd2 Bgd4 Bc4 Bb4 Na8 Ra5 Bc6 Ba3 Be3 Rb8 Bb3 Rab5 Bb7 Bab2 Nb6 Bbc3+
kBNq1QQ1/1q1nP3/6RK/1R3q2/p3Q1Q1/rb3q2/P2nq2N/1B1qb1bq b - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 g5 c5 gxh4 c6 bxc6 Ba6 c5 Bf1 c4 f4 a5 Na3 e5 Qg4 e3 Qd1 e4 Nb1 Ra6 Bd3 Re6 Bf1 Re5 fxe5 Qd3 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 d4 Kc6 g4 Kb7 b4 h5 g5 f5 e6 c5 d5 h3 b5 a4 d6 h2 b6 f4 d7 f3+ Ke1 e2 Kd2 e1Q+ Kc2 c3 g6 f2 g7 c4 Qd6 e3 Nd2 h4 Qd3 e2 Ngf3 h3 Qe3 Ka8 Qe5 Bc5 e7 Nf6 g8Q Ne4 Rg1 h1Q Nh2 Qf3 Qg4 Rg8 Bg2 f1Q Rb1 Bb7 Rb3 Bd5 Rb5 Qf5 Ba3 Q1f3 Bh1 Bd4 Bd6 Rh8 Rg2 Bg1 Qe6 Qef2 Kc1 e1B b7+ Ka7 Be5 c2 Bc7 Q2e2 Qe5 Nc3 Ne4 Nb1 Nd6 Nd2 Qee4 Rh5 Qh4 Bg8 Rg6 Rg5 Bg2 Rg3 Qhg4 Be6 Nf1 h2 Nc8+ Ka6 Bf4 h1Q Nh2 Rh3 Nb6 Ka7 Be5 Qc8 d8Q Nd7 Qf8 Qd8 Bf1 Q3f4 Bg2 Ra3 Qg8 Qff3 b8Q+ Ka6 Bg3 Bf7 Qbf4 Ka7 Bf1 Bd5 Nc8+ Ka8 Qh6 Qhg2 Qhf8 Qh1 Qd3 Bf7 Bb8 Qb7 Qd5 Qef3 Bd3 Qhg2 Qde4 Qge2 Kb2 Bd5 Ka1 c1Q+ Bb1 Qcd1 Kb2 Qdb3+ Kc1 c3 Qh4 c2 Qhg4 Be6 Rc5 Qh1 Re5 Qbf3 Rb5 Bb3 Kb2 Be3 Kc3 Bh6+ Kd4 c1Q Bc2 Qf7 Bd3 Qcd1 Bb1 Nc5+ Ke5 Be3 Qef4 Qf7d5+ Kf6 Nd7+ Kg7 Bg1 Kh6 Qf5 Qe4
bK1b2r1/P4qnr/2rQ2B1/1bp1Q3/4bbk1/B1P3Q1/2R1bqNQ/2q2NR1 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 h3 g5 Qe2 g3 Qg4 Nd7 Qd1 Ne5 h4 g4 Bb2 Nf7 Bc1 Ng5 hxg5 Qd3 Nf3 Qd4 Ng1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 h5 f4 b5 a4 h4 d4 Kh5 g6 b3 g7 h3 a5 g2 c3 b2 a6 h2 d5 e3 f5 e2 f6 e1Q+ Be3 b4 a7 b3 d6 Ba6 d7 Qe8 d8Q Bb5 f7 Nh6 g8Q Rh7 Na3 b1B Q1d6 b2 Qf6 g3 Qgg7 B1d3 Qa6 b1B Qa4 Rc8 Qc4 Be2 Qb6 Qc1 Qa2 Rc6 Qc7 Nf5 Nf3 g1R Nd2 g2 Nac4 Be4 Qg3 Bh6 f8Q Qf7 Qe8 e6 Qd6 Ng7 Qc2 Bg5 Ra2 Bd8 Qee7 B2f3 Bd3 Be2 Qe1 Kg4 Nf1 Rc7 Qb2 Ba8 Bg6 Rc6 Ke4 e5 Qee6+ Qf5+ Kd5 e4+ Qee5 Qd7 Bh6 e3 Qbd2 Qb7 Rc2 Qe7 Nb2 Qf8 Nd3 Qf6 Nf4 Qf7+ Ne6 Bed3 Qef2 e2 Qde3 e1B Qed2 Qf8 Nf4 Be2 Qfe3 Bg3 Qed3 Ne8 Ke6 Ng7+ Kd7 Rb6+ Kc8 Rc6+ Kb8 Qf7 Q3e3 Qd5 Nd3 Qf7 Ne1 Bf4 Ng3 Rf1 Rg1 h1B Bg5 Rf3 Nf1 Rfh3 Qf2 Rh8 Q2d3 R3h7 Qde3 Rg8 Bh6 Bfg5 Qh2 Bf4 Qee5 Qd1 Bg5 Qc1 Qe4 Qa3 Qee5 Bg3 Bc1 Bf4 Qfe3 Qa1 Ba3 Qc1 Ng3 Qf8 Rf1 g1Q Qed3 Qge3 Rg1 Be4 Ng2 Qf7 Nf1 Qf2 Qdg3+
1B1r2N1/q3n1k1/pN1qq3/2Q5/nKBq1Q1P/rQ6/P2nQ2R/Rb1nn2q b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 h5 Nf3 b5 Ng1 bxc4 f4 hxg4 Qb3 e5 Qc3 e3 Qc2 e4 Qb3 Bd6 Qd1 Be5 fxe5 Qd4 Qc2 Qd5 Qd1 Qd8 b4 Kf8 h4 f5 d4 c5 b5 g5 b6 g3 e6 e2 Kd2 e1Q+ Kc2 g4 d5 g2 d6 e3 e7+ Kg7 e8Q f4 d7 e2 b7 f3 Bg5 g3 Qd6 c3 Kb3 c2 Qd1 c1Q Nd2 f2 Rb1 c4+ Ka4 c3 Nb3 c2 Qd2 Ne7 Qh5 Na6 b8Q Nc5+ Kb4 Na4 Nh3 g1Q Qg4 g2 Qgf4 Qh2 Qe3 g1Q Nc5 Qd6 Qf4 Q8c7 d8Q Bf5 Qd7 Rd8 Qdb5 Qcd1 Q8b7 c1N Rh2 Nb3 Ra1 Bb1 Qa5 Qe6 Ne4 Qcd6+ Qc5 Qh1 Nf6 Qed7 Bg2 f1N Bd5 Ne3 Ng8 Q7e6 Qb8 Qf2 Bc4 e1N Qe2 Q1d4 Qb7 Nd1 Qbf3 Nd2 Qb3 Qfe3 Bf6+ Kg6 Be5 Qeg1 Qff3 Kh7 Nf4 Qg7 Nd5 Qgf7 Bf4 Kg7 Nb6 Rac8 Qg4+ Ng6 Qc3 Qd6e5 Qe7 a6 Qgg5 Q5d5 Bb8 Qdc6 Qd6 Qa7 Qgf4 Ne7 Qh3 Qcd7 Qa3 Rc5 Qc6 Rf5 Qfd6 Rf3 Qf4 Q7d6+ Qc5 Rh3 Qb2 Ra3 Qb3
NNnB4/q2p1Qnb/r4q2/8/1k1nb1Q1/1PN1qBqN/2RP1b1b/3R2bK b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 g5 axb4 g6 b3 Na3 hxg6 Nb1 g5 Bb2 g4 Ba3 Ra4 Bc1 Ra8 Bg2 b5 Be4 b4 Bg2 b2 Nc3 b1B Bf1 b3 Nb5 b2 Na3 Rh3 Nc4 Rb3 cxb3 Ra6 Na3 Rh6 Kf2 Rh7 Ke1 Rh8 Kf2 Ke7 Kg2 Kd6 h4 Kc5 e4 f5 h5 g5 h6 g3 h7 f3+ Kh3 f2 Kg2 g4 e5 f4 e6 Bd6 e7 Bb7+ Nf3 Nc6 e8N Qf6 Bb5 f1N Ne1 f3+ Kg1 f2+ Kg2 Nge7 Rh4 Ne3+ Kh1 N3f5 Qf3 Ncd4 Nec2 Be4 Ne1 Kb4 Ba6 c5 Nc7 c4 Nab5 c3 a4 c2 a5 Ng7 Ng2 Ra8 h8Q Nc8 Bb7 Ra6 Qf8 Bh7 Nf4 g2+ Kh2 g1B+ Kh1 f1Q Qf7 g3 Qg4 Qf2 Nc3 Qe3 Nh3 Bf2 Bf3 Ba2 Rh5 b1Q Rc5 Qb2 Rc6 Qa3 Bb2 Bf4 Rf1 c1Q Rd1 Bab1 Rc5 Bbe4 Ba1 Rc6 a6 Rd6 a7 Ra6 a8N Be5 Nb1 Qcc3 Bb2 Qcd3 Rc2 Qa5 Ba1 Qc5 Nc3 Qa7 N7b5 Bb8 Nbc7 g2+ Kh2 g1B+ Kh1 Qb5 Bb2 Qbe5 Ba3+ Ka5 Be7 Qg3 Bd8 Kb4 N7d5+ Ka3 Nb4 Bd6 Nc6 Be5 Nb8 Kb4 Qge6 Qgh4 Kg2 Beh2 Kh1 Qg3 Qg4
1Qq2r2/NnrB1n2/2qrpr1n/4R3/1rkb1P1B/1R2Pr2/3B4/BKnQ1N2 b - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 Bh3 bxa4 Bf1 f5 h3 fxg4 Ra3 g3 Ra1 g2 Ra2 g5 Ra1 g4 Qc2 g3 Qd1 Bg4 hxg4 Bh6 Nc3 Bg7 Nb1 Bf8 b4 Kd7 f4 Ke6 d4 Kd5 Kd2 h5 Kc2 a5 g5 c5 e3 h4 g6 e6 b5 a3 g7 a4 b6 h3 b7 a2 Rh2 a3 Qg4 c3 Qh4 c4 Bb2 Na6 b8B Nh6 g8Q Bc5 Qe8 Qc8 Qb5 Rd8 Nf3 g1R Rd2 g2 Ng5 h2 Be5 h1Q Nf3 Rd6 Kc1 c2 Qb3 Ba7 Rd1 Nc5 Nfd2 Nb7 Be2 Rf1 Qh5 g1R Qb4 Rf3 Nf1 Rg6 Bc3 Rf6 Bd2 Nd8 Qb8 Ndf7 Ba5 Bc5 Rd3 Bb6 Bd2 Ra4 Qg6 Rb4 Rb3 Ba7 Qd3 Bc5 Be1 Ba7 Qd1 Bc5 Kd2 c1N Kc2 c3 Bb5 Nd3 Ba4 Kc4 d5 Bd4 Bd7 Nc5 Bd2 Nb7 Kc1 c2 Nc3 Qg2 Nb5 Qh1 Rab1 a1R Na7 Ra2 Ra1 Rb2 Rb1 a2 Ra1 Rf5 Rb1 a1R Bf6 Raa4 Ra1 Raa6 Ra5 Rac6 Bg7 Rc7 Rb5 Rb6 d6 Rf6 Re5 Rbc6 Be8 Qg2 d7 Rd6 d8B Ra2 Bd7 Ra5 Re4 Raf5 Re5 Qh1 Bc3 Qg2 Kb2 c1N+ Kb1 Rg5 Bh8 Rg8 Bd2 Rf8 Bg7 Rh3 Be7 Qc6 Bh8 Rf3 Bg7 Rg6 Bh4 Rf6 Ra5 Bc3 Bh8 Rg6 Bd4 Bb2 Re5 Ba1 Bb2 Rf6 Ba3 Bc3 Bb2 Bd4 Ba1
nbq1R3/4b2b/NR2Q3/qr2n1p1/N3rrN1/BP1qpN2/nQ4P1/KB4k1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 h4 fxe4 h5 b5 axb5 Qc7 h6 Qf4 Na3 Qxh6 Nb1 Qh2 Kd2 Kf7 c4 Ke6 Kc2 Kf5 f4 g5 b6 e5 b7 h5 c5 d5 c6 a5 b3 h4 Kb2 a4 c7 h3 Qe2 e3 Qg4+ Ke4 Ba6 e2 Qd7 e1B f5 a3+ Ka2 d3 f6 d4 f7 d2 Qe7 Ke3 Qe8 Kf2 Qd7 d1N Bd3 e4 Bb5 d3 Ne2 d2 Qd6 e3 Qb4 Nh6 Qc5 Na6 b8Q Be7 f8N Bf5 c8N Bh7 Bb2 Nf7 Qc2 Nc7 Nb6 Ra5 Qa8 Ne5 Qe8 Na8 Bd3 Rb5 Nfd7 Rf8 Nd5 Rf4 Nd4 Qg1 Be4 h2 Nbc3 Kf1 Qf7 Bg3 Na4 Kf2 Rc1 Nc3+ Ka1 a2 Nc7 Qd1 Qg8 Qg4 Nf6 Qc8 Bf5 Re4 Qe6 Rf4 Rhd1 h1R Ba3 Rhh4 Nf3 Re4 Rh1 Rhf4 Na6 Bh2 Qb1 d1Q Qb2+ Qe2 Rc2 Bg3 Rh4 Kf1 Rh6 Qd3 Ng4 Bh2 Ne1 Kg1 Rg6 Nd1 Rc6 Nc3 Rb6 Bg3 Rg8 Bh2 Re8 Bg3 Qb1 Bh2 Kb2 a1Q+ Kc1 Qd4 Nb2 Nc6 Nc2 Rf1+ Ne1 Bb8 Bc5 Qa5 Na4 Ne5 Kb2 Rff4 Ka1 Na2+ Qb2 Qd6 Ba3 Rd4 Bc2 Rde4 Bb1 Qd3 Nf3+
rR1q3Q/2k1b2q/3nbbq1/1r1pp3/1r1BN2P/Q1Q4B/n1K1PQ2/2R1N1n1 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Qd3 f5 Bf1 f4 Qg3 fxg3 Kd2 d5 b4 Kd7 c4 a5 f4 g5 h4 a4 c5 d3 f5 a3 f6 a2 c6+ Kc7 f7 g2 Nh3 g1Q Kc3 d2 Na3 d1Q Be3 g3 Nf2 g4 Nc2 g2 Rc1 g3 Ne1 Nh6 Ne4 Na6 Bd4 Nf5 Rh3 Be6 b6+ Kb8 b7 Kc7 b5 Nb4 Kb2 a1B+ Kb1 Nd6 Rh1 Bh6 f8Q Na2 Qf2 Bf8 Rh3 Qd2 Rh1 Qh6 Kc2 Qh7 Rb1 Qh2 Rb2 g1N Bh3 g2 Rb1 Qe8 Rb4 Qg3 b6+ Kd8 Rb3 Qgg6 c7+ Kd7 b8Q Qd8 b7 Rg8 Bb6 Bf6 Bd4 Ra5 Rb6 Rb5 c8Q+ Ke8 Kd3 Nf3 Qg3 Ra5 Bb2 g1R Nc2 Bg4 Na3 e5 Nc2 Rb1 Qa8 Rb5 Bd4 R1b4 Qa3 Rg7 Qf2 Be6 Rc1 Ng1 Qcc3 Rc7 Ne1 Kd7 Kc2 Rc8 Rd1 Ra8 Rc1 Qc7 b8Q B8e7 Qh8 Qd8 Qcb2 Kc8 Rb8+ Kc7 Qbc3+
Q4Q2/NnRK3b/1r1P1bBk/1P1rpp2/3r3B/NnN1Nqq1/q2b2n1/3R4 b - - 0 1 illegal: No proof kernel
1B3q2/R3R2B/1qkpBn2/4p1N1/1PPB2b1/K1b3q1/Qr1nrnb1/1N1Q2r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 h5 b4 a5 f4 a4 c4 e3+ Kc2 d3+ Kb2 d2 g4 h3 f5 h4 g5 h2 g6 a3+ Kb3 a2 b6 e2 f6 e1Q b7 d6 g7 Kd7 f7 h3 Bb2 Na6 b8B Nf6 g8B Nc5+ Kc3 Kc6 Kc2 Qb6 Be5 Nce4 Kb3 Bg4 Qf3 d1N Nc3 Bg7 f8Q Nf2 Rb1 a1Q Qf7 Ra2 Bd3 Re2 Bd4 Qa8 Ra1 e6 Qg2 Rh4 Nf3 Nd2+ Kb2 Qg1 Qf1 Qg3 Qa7 Rh8 Rg1 h1B Nb1 h2 Ng5 Bg2 Qd1 h1R Re1 R8h2 Bdh7 Rg1 Qa2 Bh8 Bc7 Qf8 Bb8 Qe5 Ka3 Qg3+ Be3 Nh5 Bf7 Bc3 Bd4 Nf6 Rf1 e5 Be6 Nh3 Rf3 Nf2 Rf5 Nd5 Rf7 Nf6 Re7 Bf1 Beg8 Nh1 Qb2 Nde4 Bf7 Re1 Qbb3 Rb2 Ka4 Ree2 Be6 Nhf2 Ra3 Bg2 Qa2 Rbd2 Kb3 Rc2 Ra6 Nd2+ Ka3 Rb2 Raa7
7k/bb3R1P/1q1r2bB/nnp1N2B/qr1R4/pn1N4/Q1KQ1Q1P/qQ3r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 exf4 a4 bxa4 Na3 d5 Nb1 dxc4 b4 f5 e4 Kf7 d4 g5 Kd2 Kg7 e5 a5 b5 f3 b6 f4 b7 f2 d5 g4 d6 c3+ Kc2 a3 d7 a2 e6 g3 e7 f3 e8Q a4 Bf4 a3 Bg2 f1R Qee2 f2 Bd6 Qe8 d8Q Nf6 Bf4 Nc6 b8Q Bc5 Be5 Rh6 Qf3 Kh8 Q8d4 Ra4 Bf4 Na5 Q4d2 Rb4 Ne2 Ba7 Nc1 Ne4 Q1e2 Rd6 h6 Bb7 h7 c5 Bh3 g2 Nd3 g1Q Bh6 Qg6 Bg4 Qf6 Qf5 Qfd8 Bh5 Qb6 Qc7 Qec6 Qcf7 Qa4+ Qb3 Re6 Rg1 Nd6 Rg4 Nb5 Rd4 Rd6 Qee4 Rh1 Qef4 f1B Qdf2 Be2 Nd2 Rf1 Nc4 Bg4 Qe6 Bf5 Q4d2 Bg6 Rd1 a1Q Ne5 Qc7 Rf4 Qb6 Rf7 Qa2+ Kc1 c2 Qb1 Qa1 Qa2 Re4 Qde3 Rb4 Kd2 c1N Qee2 Ncb3+ Kc2 Bge4 Qd2 Bf5 Re1 Bg6 Re4 Qc7 Rg4 Qb6 Rd4
6bB/1b4Qp/rB4nq/RB1Pq3/4QBrN/1P1R1qnK/1p3br1/2nN2k1 b - - 0 1 illegal: No proof kernel
5Bb1/BKn2PpR/3bN2N/q4RqQ/2rB2P1/1bn3p1/Q1r1k1r1/n1qB4 b - - 0 1 illegal: No possible last move
Q1R2Q2/1r1rP3/N1p3B1/bp4BR/k5Kn/Qn1qb2P/1r4Q1/nqN2b1q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 d4 g5 a4 f5 e4 f3 Kg3 f4+ Kf2 g3+ Ke1 f2+ Ke2 g2 Kf3 g4+ Ke2 b3 e5 f3+ Ke3 g3 Kf4 b2 d6 Kc6 d7 Nh6 h3 Nf5 e6 Nh4 a5 Rh7 a6 Ra7 Qd3 Bb4 Be3 Ba5 Ne2 g1R Ra3 g2 Nbc3 b1Q Na4 b6 Qe4+ Kb5 d5 Nc6 d6 Rb7 a7 Nb4 a8Q Nc2 Kg4 Na1 Nc5 c6 Bg5 Rf7 Na6 Rg7 Re3 Rh7 Qg6 Ka4 Nc1 b5 Be2 f1N Bd3 f2 Re5 Nd2 Qg7 f1Q Bg6 Ndb3 e7 Rh8 Rh2 Rh1 Rd5 g1B Rf2 Rh2 Rf8 Be3 Qb2 Qh1 Qg2 Rg8 Re8 Rf8 Rc5 Rf2 Rf5 Rb2 Rg8 Qc7 d8Q Be6 d7 Bc4 Qf8 Bf1 d8Q Qd6 Rh8 Qa3 Qd3 Rd2 Qc3 Rdd7 Rh5 Qd6 Qc5 Qdd3 Rd5 Rdc7 Rd8 Rd7 Qd6 Ba7 Rc8 Be3 Qgd5 Rf2 Qg2 Rb2 Qa3+
4b3/p2B2qB/2qP1Q2/1N3nQn/r1np3R/N3rN2/PRNb1q2/1r1kb2K b - - 0 1 illegal: No proof kernel
Bb1bRnqr/2bQ2P1/r1r2PpQ/8/1n2R3/B1R3p1/bNn5/k1KRbN2 b - - 0 1 illegal: No proof kernel
3nRbK1/nRP2Bb1/nQ1Ppr2/bN2p3/1kB3B1/1rQ5/2bqr3/2B1b2N b - - 0 1 illegal: No proof kernel
b3Brn1/b1P2pK1/q1N1P3/2rk2n1/QQb1nnR1/1QQrpn1N/5B2/1R6 b - - 0 1 illegal: No proof kernel
1Q3b2/n1p2Bb1/br4n1/bN2Nb1R/4Nk1N/1KPp1n1q/r2QP3/R5rB b - - 0 1 legal: proof: f4 b5 g4 g5 a4 e5 axb5 h6 d4 exd4 Be3 Bc5 Bf2 Be7 Bh4 gxf4 g5 Ba3 g6 Bf8 Bg5 hxg5 Kd2 Ke7 h4 Kd6 b4 Ke5 b6 a5 g7 d5 b7 f5 b5 d3 Kc3 g4 h5 g3 h6 a4 b6 f3 h7 d4+ Kc4 d2 Bh3 a3 Ra2 g2 Rh2 d3 Rb2 f4 Rb4 a2 Qf1 a1B Qc1 d1R Bd7 f2 Qd2 f1B Bg4 f3 Rb3 f2 Bf3 Ra2 Ra3 Ne7 g8B Ng6 Nh3 g1B Ng5 Nc6 b8Q Qd7 b7 Bh3 Nc3 f1N Nge4 Bf5 Bh1 Bb6 Nb5 Ba5 Kb3 Na7 Rh5 Nh2 Bf7 Rg1 Ra4 Rg8 h8N Nf3 Ra3 Bd4 c3 Rg7 Qa8 Rh7 b8N Rh6 Ra4 Ba6 Qb7 Be3 Nc6+ Kf4 Qb8 Bg7 Ne5 Qc8 Qd1 Bc5 Qc2 Bcf8 Qd1 Rd2 Ra1 Ra2 Qc2 Qd8 Qd1 Qh4 Qe1 Qh3 Qd1 Ne7 Qc2 Rb6 Nhg6+ Ke3 Nh4 Kf4 Qb2 Ng6 Qd2+
rk2B2R/RP3qNB/1K4Pn/B4QBr/5p1p/5b2/n2b1n1n/Q2nr1Nb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 f5 c4 a5 b4 h5 c5 h3 e5 h4 g5 a4 c6 a3 e6 a2 e7 f3 e8B f2 Na3 h2 Nc2 Rh5 Ne3 Na6 b6+ Kb8 b5 Qf6 b7 Bb4 g6 Nh6 c7+ Ka7 Bd2 Qf7 b8B+ Kb7 b6 f4 Nf5 Bd7 Rb1 a1R Ng7 Bg4 Bh3 Bf3 Be6 f1N Rb2 Ba3 Ba5 Bb4 Qa4 Re1 Qa1 Bd2 Ra2 Qf6 Bg8 Qf7 Bh7 Kc8 Bb4 Kb7 Be7 Kc8 Bg5 Kb7 Kc2 d3+ Kb3 d4+ Ka4 Nb4+ Kb5 Kc8 Rc2 Na2 Rc4 Be3 Ra4 d2 Ra7 d1N Bg8 d3 Bc6 d2 Bh7 Nf2 Nh3 Rc1 Ka5 Ng3 Re1 h1B Ng1 Bd5 Ba4 Bc6 b7+ Kd7 Re2 Re1 Bb5 d1N Ba4 Bd4 Re8 Be3 Rh8 Nf1 Bb5 Nh2 Ba4 Kd6 c8Q+ Qc7+ Ka6 Bd2 Qf5 Bcg2 Be8 Bf3 Bf7 Kc6 Be8+ Qd7 Bf7 Qe6 Bc7 Qd5 Ba5 Qb3 Bc3 Kc7 Be8 Kb8 Ba5 Qf7 Kb6
K1b1Q1nq/3RNqRq/3Nb3/n1Q5/1p1R1P2/B1pRq1P1/Bk2qr1b/2r5 b - - 0 1 illegal: No possible last move
3nQQKQ/2nq4/4R2q/kQ1pb1b1/2b2PNr/Bn5R/1N4pP/2b1bBr1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 a5 c4 g5 f4 d5 b4 Kd7 b6 Kc6 b7 Kb6 b5 e5 Qd3 a4 c5+ Ka5 b6 a3 c6 a2 c7 e3 Ba3 g3 Kf3 e2 Bh3 e1B Bf1 g2 Qh7 e4+ Ke2 e3 Kf3 d3 Qh3 d2 Bc4 d1Q+ Ne2 g1B Bd6 Rh4 Na3 Be7 Nc2 Bd2 Ba3 Nc6 b8Q Ba6 c8Q Bc1 b7 Qd7 Qf8 Nf6 Qbe8 Nd8 b8Q g4+ Kg3 Bb5 Nc3 e2 Na4 Bd4 Re1 Be5 Nb2 Qd3+ Ne3 Qg6 Rb1 a1N Qf1 Nb3 Bd3 Rh8 Qc8 Rg8 Kh4 g3 Ng4 Rg7 Qh8 Bc4 Qef8 g2 Qc6 Rf7 Qe6 Qh7+ Kg5 Qh6+ Kf5 Rh7 Ra1 Qh4 Kg6 Ne8 Qef7 Nc7 Q7e8 Qh3 Ra2 Rh4 Ra1 B5d6 Kg7 Be5+ Kg8 Bg5 Rb1 Be3 Rbc1 Ra6 Rc3 Bc1 Rd1 e1B Rd2 Qe3 Re2 Qb6 Re3 Qh6 Re4 Bg7 Re6 Be5 Be2 Ra8 Rh3 Rc8 Qf3 Rb8 Qd3 Rb4 Bf1 Ra4 Be7 Ra1 Ba3 Bb5 Rc6 Bf2 Qc5 Bd2 Be2 Rg1 Re6 Bfe1 Bf1 Bc1 Qcf8 Ba6 Qc4 Bb5 Qc6 Bc4 Qb5+
1b2q1QB/4n3/Qr1NPp1q/1r1R2QQ/B2n1p2/3R3N/4rrbP/3Kbrk1 b - - 0 1 illegal: No possible last move
bK3B2/1N3q2/2R1p1r1/2Pq1bBb/3Qb2R/1n4p1/n1QQPrQn/k1b1N3 b - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 d4 cxd4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 d5 b4 Kd7 h4 Ke6 c4 Ke5 g6 f5 g7 a5 b6 f3 Kg3 f2 b5 f1Q b7 f4+ Kh2 a4 c5 d3 b6 Kd4 h5 f3 Kg3 d2 Kf4 a3 h6 a2 h7 f2 Ba3 g3 Bc1 Nc6 b8B Bg4 b7 e6 Nh3 Nb4 Rh2 Nh6 g8Q Bh5 Bc7 Ng4 b8Q Bh6+ Qg5 Rg8 Qb3 d1B Qc8 Bc2 h8Q+ Rg7 Qe8 Rg6 Nc3 Ra3 Rb1 a1N Ne4 Na2 Qc6 Ra7 Bd6 Rf7+ Nf6 Qd7 Qh8 Qd1 Bf8 f1B Qcb7 Bg2 Nf2 Qh1 Qa4+ Kc3 Rh4 d4 Rb6 Nh2 Ke5 d3 Ne8 d2 Nd3 d1B Ne1 Rf2 Nd6 Bf5 Qd8 Bdc2 Qhf6 Bg7 Bg5 Qf7 Qd5 Bh8 Ra6 Kb2 Q8a8 Bgf3 Qd2 Kb1 Q8c6 Bcd3 Qc4 Nb3 Qcc2+ Ka1 Rb6 Ba6 Qg7 Bb7 Q6e4 Ba8 Rc6 Qe7 Nb7 Qf6+ Kd6 Qg2 Qe7 Qf7 Qd7 Bb2 Kc7 Bc1 Kb8 Qh1 Qec4 Bd5 Q4e4 Qf3 Qd6 Qd3 Qh1 Bde4 Qg2 Qc4 Q6d3 Qd5 Qd4+
1R2Kn2/3NN3/1rQPr1Pr/n3n2Q/3bk1rq/B4p1B/bp1R2qR/R4r2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 b5 g4 c5 a4 f5+ Kd3 f3 e4 f2 g5 h3 g6 f4 a5 c4+ Kc2 h4 a6 b3+ Kc3 b4+ Kd2 b2 a7 c3+ Kd3 h2 Kc4 c2 Kb5 b3 Bd2 c1N Qc2 h3 Nc3 b1R Qd1 Be6 Bg2 f1R Nf3 Qh4 Ne5 Ne7 Nd7 Nec6 Qh5 Nd3 Bc1 f3 Bb2 Nde5 Ba3+ Nb4 Kb6 Rh6 Kb7 Bg7 Kc8 Rg1 Bf1 Rg5 Kd8 Rg4+ Ke8 b2 Bg2 Re1 Bf1 Kc7 d6+ Kc6 Bg2 Ba2 Nd5 Re3 Rhe1 h1R Re2 h2 Bh3 Rf1 Ne7+ Kb5 d5 Kc4 Rg2 Kd3 Rf2 h1Q Rh2 Nec6 e5 Qg2 e6 Ke4 Nf8 Be5 d7 Na5 d8R N4c6 Nd7 Bd4 d6 Rb3 Rd1 Rb6 Rd2 Ne5 Rc8 Na6 Rd8 Rab8 a8R Nc5 Ra6 R8b7 Rb8 Rc7 Nd5 Ra7 e7 Ne6 Nf8 Bb1 Bc5 Nf4 Kd8 Nb3 Ra1 Ba2 Bb4 Na5 Ba3 Qhg3 e8Q Re7 Qc6 Qh4 Nd7 Ne6+ Kc8 Nf8 Kd8 Re6+ Ne7+ Ke3 Ke8 Kf4 Qa4 Ke4 Qc6+
1n1Br3/BN3b2/R1Pn2qk/bN3b1Q/2B1b1B1/qb1qpP2/Q6p/KR3r2 b - - 0 1 illegal: No possible last move, all moves rejected
N3Q1rq/nK3N2/R1P2prq/pk1bR1nN/q2bq3/2P4r/1B2Qq2/N4B2 b - - 0 1 illegal: No possible last move, all moves rejected
R6r/2KbBb1p/1QP1bbk1/1B3q2/1bNNnRP1/6Q1/r2p1QQ1/nr4q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 a5 Kd3 f5 Kc4 Kf7 Kd5 f3 e4 d3 c4 h3 b4 f4 g4 a4 e5 a3 c5 a2 e6+ Kg6 b6 h2 c6 f2 b5 f3 b7 Qg5+ Ke4 d5+ Kd4 Nd7 b8Q Qf5 b6 Ngf6 b7 Nc5 e7 Nb3+ Kc3 d4+ Kc4 Bd7 Bg5 Ra5 Be2 f1Q Nd2 f2 Qe1 Qg2 Kb4 f1B Ngf3 Qg3 Rg1 h1R Qd6 Qg2 b8Q Qh2 Qh4 Bg2 Raf1 a1B Qe1 Bb2 Qdg3 Ra8 Rf2 Bf1 Rgg2 Na1 Qb5 Ra5 Qd5 Ra7 Kc5 Bc3 Kd6 Bb4+ Qc5 Bg7 Bh4 Ra6 Kc7 Rg1 Qge5 Ra4 Rg3 Ra2 Qb6 Bg2 Qf1 Bh1 Qh3 Rb1 Qe4 Qg1 e8Q+ Kh6 Q8e7 Kg6 Qec5 Bg2 Qf4 Bf1 Qh1 Ne4 Be7 Bf6 Qfd6 Re8 Qg2 Rh8 Bd1 Be2 Ba4 Bd1 Qf4 Bb3 Bb5 Bf7 Nc4 d2 Ng5 Bd5 Ra3 B5e6 Qfg3 Bf7 Rf4 d1B Nd2 d3 Qcf2 Ba4 Ngf3 Bab3 Ra8 Bbe6 Nc4 d2 Nd4
3BnK2/N2k2PN/b2R4/p1Q1Q1Q1/Br3br1/pRPr4/r1n2r2/Q1q2n1q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Ke2 d5 Kf3 e5 Kg4 e4 Kh5 d3 f4 e3 b4 d2 g4 h3 b5 d4 f6 d3 g5 h2 f5 e2 c3 e1R f7+ Kd7 g6 Bd6 f8Q Bf4 g7 Nc6 f6 Ba6 f7 Re4 b6 Nd4 b7 Nc2 b8Q Rb4 Qc5 h6 Kg6 h5 f8Q h4 Kf7 h3 Ba3 Nf6 Nf3 Rh4 Qg5 Rg4 Qfc5 Ne8 Qbe5 Qb8 Qc1 d1N Kf8 d2 Bd3 Qb6 Bb5+ Qc6 Ra2 Nde3 Rb2 d1R Rb3 Rd3 Qb2 Nf1 Qa1 Rd8 Rg1 h1Q Bc1 h2 Na3 Ra8 Be3 Rg2 Bf2 Rg4 Bh4 Nd2 Rg2 Qc1 Re2 h1R Re4 Bh2 Rf4 Nf1 Rf6 Bf4 Rg6 Kc8 Rf6 Rh2 Rg6 Qc7 Bc6 Qd7 Nb5 Rf2 Rf6 Qd5 Rd6 Bb7 Rf6 a6 Na7+ Kd8 Bb5 Qe4 Rc6+ Kd7 Qgf6 Qd5 Ng5 Qh1 Nh7 a3 Qh5 a5 Qhg5 Ba6 Ba4 Rab8 Qfe5 R8b6 Qh6 R6b5 Bd8 Rb7 Rb1 Rb2 Qhg5 Ra2 Rb3 Rb4 Rd6#
1K1N1kb1/1QR2np1/pP3b1B/q2B2nN/4nPrq/6nN/1rQq2R1/2Nn4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 e5 b4 d5 h4 d3 Kc3 d4+ Kc4 d2 h5 d3 b6 g3 Kb5 e3 c4 g2 h6 e4 h7 e2 b7 e1N c5 e3 c6 e2 c7 a6+ Kb6 Nc6 b8N Be7 b5 Nf3 Nh3 e1Q Rh2 g1N Nc3 Bf6 Qc2 d1N Rg2 d2 Bc4 Be6 Kb7 Nce5 c8Q Nf7 Na2 N3g5 Bd5 Ne2 Nc6 Ng3 f3 Ra7+ Kb8 Kf8 b6 Rc7 Rb1 Qe5 Rb3 Qc3 Ra3 Qa5 Rc3 Re7 Rc5 Re8 Rc3 Qe7 Nd8 Qeb4 Qc7 Qh4 Qb7 Re7 Bc4 Bd5 Bb3 Re4 Rc7 Rg4 Bc4 N5e4 Bb3 Nfg5 Bc4 Bf7 Be6 Nh6 Bd5 Rg8 h8N Be6 Nhf7 Rh8 Ne5 Bg8 Nd3 Nhf7 Ndf4 Ndc3 Qb3 d1Q Qc2 Qd2 Nh5 Nd1 Bb2 Rh6 Nc1 Be7 Ba3 Rd6 Bc5 Bf6 Be3 Rc6 Bf4 Rc3 Be3 Rb3 Bf4 Rb2 Be3 Nh7 Bh6 Nhg5 f4
knBb1Kn1/1rrNrP2/pQp2qrQ/4N3/2N3Rn/4r3/R1PN1b2/4Bq2 b - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 f5 Ke2 b5 Ke1 bxa4 h3 fxg4 Bd3 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Qd6 Na3 Qd5 Nb1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kb7 Kf5 h5 Kg6 e5 Kf7 a6 b4 h4 f4 c6 d4 h3 b5 h2 g5 e3 b6 e2 d5 e1Q f5 e4 g6 e3 d6 e2 d7 a3 g7 a2 f6 Rh5 Nd2 Rh6 Nc4 Be7 Nf3 g1N Qd4 g2 Nfd2 Nf3 Rg1 h1R Qf4 Rg6 Qh6 Qd1 Bb2 e1B Bc3 Rh3 Be2 Nh4 Bg4 Re3 Bh3 Qc7 d8Q Ra7 Bc8+ Ka8 Ke8 Rb7 f7 Qd6 Bb4 Rc7 b7+ Ka7 Ba5 Qf6 Bc3 Bf2 Bb4 Nd7 b8N Ka8 Bc3 Qf1 Ba5 Ra7 Qb6 Rc7 Bb4 Nf8 Nd7 Bd8+ Nde5 Nd7 Ba5 Nb8 Kf8 Qc1 Rb1 a1R Rb2 Rb1 Ra2 Qf1 Bc3 Ne7 g8N Rbe1 Rh1 g1R Rh3 R1g4 Rg3 Rd4 Rg2 Rdd7 Rg4 Rb7 Bb4 Rdc7 Ba5 Qf5 Nf6 Ng8 Nfd7 Qf6 Nd3 Re7 N3e5 Re2 Nb1 Re4 Be1 Re3 Nbd2
8/4pQr1/1B1b1nk1/n3P1N1/Kb3Q1R/bpBqN3/1P1q2bb/1RR1qRr1 b - - 0 1 legal: proof: c4 f5 a4 h5 g4 hxg4 a5 d5 cxd5 g3 a6 Nxa6 Ra4 Nb4 Ra1 Na2 Bh3 g2 Bg4 fxg4 f4 Kf7 e4 c5 d4 g5 Kd2 b5 Kc2 a5 Kb3 g3 h4 b4 f5 g4 f6 c4+ Ka4 c3 e5 c2 h5 b3 d6 Bb7 h6 Kg6 d7 Rh7 f7 Rg7 h7 Nf6 h8R Nb4 d5 Nc6 Ne2 g1B d6 g2 Bg5 c1Q Bf4 g3 Qd2 Bh2 Rh4 g1B Ra3 g2 Ra1 Bc5 Rf1 g1B Nec3 Ba3 Nd1 Bgc5 Nbc3 Rc8 Qd4 Qd2 Ne3 Rb8 Rab1 Ra8 Kb5 a4 Ne4 Na5 Ng5 Bg2 Bg3 Bcb4 Be1 Rc8 Qf4 Rc1 Nc4 Qd3 Bc3 Qd2 Ne3 Bc5 Rh1 Rg1 Rc1 Qa8 d8B Qe4 d7 Bd6 Bb6 Qed3+ Qc4 Bab4 d8R a3 Rc8 a2 Rb1 Ba3 Ka4 a1Q Rf1 Qae1 Qf4 Rg8 Rc6 Bh6 f8Q Rg7 Bcd4 Q3e2 Rc1 Qed3 Bc3 Bg3 Rb1 Bab4 Nd5 Bf2 Bbd4 Qec1 Re1 Rf1 Bb6 Bfc5 Qe3 Ba3 Nf7 Bf4 Ng5 Bg3 Qf4 Bcb4 Ne3 Bh2 Qg8 Qcd1 Qd5 Q1e2 Rec1 Re1 Rf1 Qed1 Rf2 Rg1 Rf1 Q1e1 Qf7+
4K1N1/n2p3B/1n1kP3/5nr1/n3pr1q/n1bPBb1q/R1QNq2Q/2Q3RQ b - - 0 1 illegal: No proof kernel
2K5/NBp3r1/Pr1r1R2/kn2B3/3QnQ1b/p1qN1RB1/b2PnnB1/3n3q b - - 0 1 illegal: No proof kernel
2N2bqr/pB6/1R4q1/N2n1n2/2bNbpRk/1nB2P2/K1N1QPQ1/4b1rb b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 g5 a5 gxh4 a6 bxa6 Nd2 a5 Nb1 a4 Qd2 Qb6 Qd3 Qc6 Qd1 Qf3 exf3 Ba6 Qe2 Bb7 Qd1 Bc8 Kd2 d5 b4 e5 c4 Ke7 Kc2 Kf6 Kb2 h5 g4 h3 c5 a3+ Kb3 a2 c6 d3 b5 e4 b6 h2 c7 d2 b7 Kg5 Nc3 f5 Bh3 h4 Bf1 e3 Nge2 d4 Rb1 a1N+ Ka2 h3 Qb3 d1Q Nb5 d3 Qb4 f4 Ng1 e2 Rb3 e1B Qe4 d2 Qe7+ Nf6 Bb2 Qc2 Na3 d1B Ne2 Be6 c8N Kh4 g5 Qg6 Rg1 h1Q Nd4 h2 Bc3 Bc2 Ba6 Nc6 b8N Nd5 Bb7 Qg2 Rb6 Be4 Nac2 h1B Qe8 Qg8 g6 Nb3 g7 Nce7 Nbc6 Qg6 Na5 Nf5 Qb5 Nc7 Qe2 Bc4 Rg5 Nd5 Rg1 Q8e6 g8Q Rb8 Qg7 Qg8 Ne7 Rd8 Nc8 Rd7 Qe5 Rdh7 Qg7 Rh5 Rg3 Rg5 Rg4+ Kh5 Qh7+ Nh6 Rg1 Rg4 Qe7 Nf5 Qh7+ Kg5 Qh3 Rg3 Qhf1 Kh4 Rg2 Rh3 Rg5 Rg3 Qg1 Rg4 Qgf1 Rg1 Qg2 Bb4 Rg3 Bf8 Rg4+
1K6/pbQb1PBB/6r1/1bN4n/RP1R1b1n/2pR1R2/Qb2nq1k/2q2N1r b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc3 h5 Kb4 c5+ Ka4 c3 g4 e3 f4 e4 d4 c2 b4 c4 b6 h3 Ka5 h4 f5 e2 d5 Ke5 d6 e1B d7 e3 g5 Kf4 g6 Kg3 g7 h2 f6 h3 f7 e2 Bg5 c1Q Qb3+ Bc3 Qa4 e1N Bh6 Ng2 Nd2 Qh4 d8R Bd7 b7 Nf6 Nb3 Bd6 Nf3 Nh5 Qa2 Bf4 Bd3 Nc6+ Ka6 Bb2 b8Q c3 Kb7 Nd4 Qc7 Ne2 Rf1 h1B Nc5 h2 g8R+ Kh3 Bh7 Qf2 Rg5 Nh4 Rg4 Rg8 Bf8 Rg6 Bg7 Bb5 Rdd1 Rh8 Rd5 Bg2 Nd2 h1B Rg3+ Kh2 Rd3 Bh3 Rd4 Qg2 Rf3 Qf2 Rdd3 B1g2 R5d4 Bc8+ Kb8 Bgh3 Qa5 Bhd7 Ra4 Bb7+ Bg8 Rhh6 Bh7 Rg1 Qa6 Rh1 Qe6 Rf6 Qa2 Rg6 Nf1+
1BNN1br1/qr1nBn2/q1nq4/1R1bR3/1QBp1Bq1/P2P2r1/4Qp1k/5K2 b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 a6 b5 axb5 gxh5 bxc4 Bh3 c3 Bg2 Qe7 Bf1 Qd8 h4 Ke7 e4 Kf6 e5+ Kf5 h6 g5 a3 d5 h7 b5 e6 c5 h5 b4 e7 c2 e8Q b3 h6 b2 Nf3 Kg4 Qe3 Kg3 Qd4 f5 Be2 c4 Qg7 c3 Nh4 g4 Qf6 d4 Ng2 f3 Bb5 f4 Be8 f2+ Kf1 Nc6 Qd6 Be6 Qe1 Nf6 Qd5 Rg8 h8B Nd7 Qh5 Bd5 h7 Qf6 Bg6 Qd6 Bf6 Rb8 h8B Rb7 Rg1 Rb3 Qhe5 Kh2 Be7 g3 Bd3 Rb7 Bc4 Rb3 Nh4 Rb7 Nf5 g2+ Ke2 f1R Nh6 Rf3 Nf7 Rfg3 Nd8 f3+ Kf2 Rb4 Q1e2 Rb7 Re1 g1N d3 Nh3+ Kf1+ f2 Ra2 Ng5 Nd2 b1Q Rb2 Nf7 Rb5 Qb3 Ne4 Qa4 Qe6 Qa7 Bf4 c1Q Bhe5 c2 Qd2 Qb2 Qb4 c1Q Qg4 Qd1 Qe2 Qg6 Bb8 Qd6 Nc3 Qbb3 Na4 Qa6 Nb6 Qba4 Nc8 Q4a5 Qc2 Qg4 Re5 Qa7 Qcd2 Q5a6 Qe2
1r3NR1/rBq5/1Qb1n2K/q1b2p1Q/n2pBPNR/1qBB3P/2r1q3/4k2b b - - 0 1 legal: proof: d4 b5 b4 c5 g4 h5 a4 hxg4 d5 cxb4 axb5 e6 Nh3 exd5 Ng1 d4 Kd2 d3 Ke3 Ke7 Kf4 Ke6 e4 g5+ Ke3 Ke5 c4 f5 c5 d5 h3 a5 f3 d4+ Kf2 g3+ Kg2 g4 c6 b3 b6 b2 c7 d2 b7 Kf4 e5 Ke3 f4 a4 e6 a3 e7 a2 e8B Nh6 Na3 b1Q Bd3 Nd7 b8Q Ra7 Qf1 Nc5 Bdb5 Bb7+ Nf3 Qb3 c8B Qc7 Bb2 d1B Bc3 Nf7 Rg1 Ng5 Bd3 Nge6 Bc6 Bd6 Bd5 Bc6 Ne5 Rg8 Rb1 a1Q Qb6 Rh8 Bb7 Rb8 B5e4 Qaa2+ Bb2 Kd2 Nc2 Qa5 Qf3 Na4 Ng6 Bc5 Nf8 Be2 Ne3 Bd1 Kf1 g2+ Kf2 Be2 Kg3 Bd1 Kh4 g3 Re1 g1Q Kh5 g2 Kh6 Qh2 Qh5 g1R Ra1 Rg8 Rg1 Bf3 Rg4 Bh1 Rh4 Rg2 Rg1 Re2 Rg6 Ke1 Ng4 Rc2 Rg8 Qe2 Bc3+
1bQ1q2q/2B2n1Q/2Q1bq2/r2pR2r/k4pRb/1rqP4/Pn1Q2N1/K1NB4 b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 h5 g4 a6 b5 axb5 gxh5 bxc4 Bh3 c3 Bg2 Qe7 Bf1 Qd8 h4 g5 e4 b5 e5 f5 e6 c5 h6 d5 d3 g4 h7 g3 e7 Kd7 h5 Kc6 e8Q+ Nd7 h6 c4 Rh3 b4 Rh2 Kb5 Ba3 b3 Re2 b2 Rg2 c2 Kd2 c1Q+ Ke2 c3 Nf3 c2 Qf7 Nc5 Qe1 Bd6 Qg6 Be6 Nh4 Na4 Rh2 g2 Nd2 g1B Nb3 b1R Ng2 Bb8 Rh5 Qe8 Qd2 Ra5 Bd6 Qb2 Nc1 Bf2 Bc7 Bh4 Rg5 Qf6 Rg4 f3+ Ke3 f2 Be2 f1Q Bd1 Qfd8 Kd4 Nb2 Kc3 f4 Qf6 Qh1 Qg6 Ka4 Qf6 Ne7 Qg6 Nc6 Qf6 Rf8 h8Q Ne5 h7 Nf7 Qhg7 Qd6 h8Q Qh3 Qhh7 Rh8 Qhg8 Rh5 Q7h7 Qed7 Qc8 Qe8 Rg5 Qdf8 Re5 Qf5 Qe7 Qh8 Qd6 Nc4 Qda6 Rb7 Rb1 Qff6 Rb6 Nb2 Rd6 Rb4 Qc6+ Rbb5 Rd8 Qee7 Rg8 Qe8 Qb6 Rb4 Rg4 Rb3+ Kd4 Qeg8 Ne2 c1Q Qc5 Qc2 Nc1 Qe8 Qd6 Nc4 Qdd7+ Rbb5 Qc6 Qb3 Bf3 Qb4 Be2 Qc5+ Kc3 Qd4+ Kc2 Nb2 Kb1 Qb4 Ka1 Qc3 Qb6 Rb4 Bd1+ Rb3 Qc6+
R1BR1qN1/3r4/bkr3Qn/QP2q1N1/pq4N1/2b1N1pK/P2n4/Br1r2b1 b - - 0 1 illegal: No possible last move
1b5K/n2b1Q1Q/r1nrq3/1P2PBp1/1NBB1R2/qn4pn/kr3R1B/q5N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd3 a5 h4 g5 b4 f5 c4 a4 e4 a3 h5 a2 b6 f3 c5 f4 b5 g3 c6 f2 c7 f3 h6 Qe7 h7 Nc6 b7 Na7 b8B Qa3+ Qb3 Bd6 e5 Ne7 Bg2 f1N Rh4 f2 Rh1 Nd2 Ne2 f1Q Bb2 Qf6 Bf1 Bd7 c8B Nec6 Nbc3 Rf8 Rc1 a1Q h8Q Qe7 Rb1 Rf2 Ng1 Rh2 Qc4 Nb3 Na2 Qe8 Bc3 Rb2 Nb4 Qg8 Bc7 Qf7 Bb6 Bb8 Rh2 Qg8 Rc2 Qe8 Ke2 d3+ Ke3 d2 Qh7 d1R Rf2 Qg6 Qf4 d4+ Kf3 d3 Kg4 d2 Bcd4 Qf6 Kh5 Qe7 Kg6 Qd6 Nc2 Kd5+ Kg7 Qg6+ Kh8 Qe6 Re2 Kc4 Qff7 Re1 Bbc5 d1N Nb4 Nf2 Rd1 Nh3 Rf2+ Ree2 Rd3 Rbd2 Rdf3 Rd3 Rf4 Rb2 Be3+ Kc3 Be2 Rd6 Bed4+ Kd2 Bc4+ Kc1 Nc2 Kb1 Bb6 Qd5 Bbc5 Ka2 Bb6 Be8 Bf5 Qe6 Bbc5 Bd7 Bb6 Qd1 Nb4+ Ka1 Rc2 Nd2 Nf3 Nc8 Bf2 Nb3 Bg1 Ra6 Bh2 N8a7 Ng1 Qc1 Bd4 Qf1 Nd3 Ka2 Rcf2 Qa1 Nb4+
B1Rb1K2/4Q2b/1b1Nq2P/RRqkr3/Qb3prn/6N1/R3pP2/n3nB1r b - - 0 1 legal: proof: e4 b5 b4 c5 g4 d5 a4 h5 Ba3 hxg4 axb5 dxe4 b6 Qd5 b5 Qd8 Bb4 cxb4 Ke2 Kd7 Ke3 Kd6 Kf4 e5+ Kg3 a5 d4 g5 c4 f5 h4 e3 c5+ Kd5 b7 e2 c6 e1B b6 a4 c7 a3 h5 b3 Nf3 a2 Rg1 b2 Be2 e4 Ba6 e3 Nh2 e2 Rh1 Nc6 b8R Bfb4 b7 Qf6 Nf1 Ne5 Bd3 Nh6 Nh2 Nf3 Nd2 b1Q Nc4 Qc1 Nf1 Qe6 Qa4 Ra5 Nd6 Qc5 Rg1 Bd7 c8B Bb5 Bb1 Bd3 Bd7 Bed2 Rc8 Be3 b8R Ne1 Ra8 Rb5 Ra5 Rh7 Bc2 Rg7 Rb1 a1N Rb2 Rg6 Ra2 f4+ Kh2 Nf5 h6 g3+ Kh3 g2 Kg4 Rg7 Kh5 g4 Ng3 Nh4 Rf1 Bh7 Rh1 Nd3 Rb1 Ne1 Bg6 g1R Kg5 Qe4 Kf6 Rh1 Rbb2 Rg8 Kf7 Rg7+ Kf8 Qe6 Nf5 g3 Bf7 g2 Ng3 g1B Bh5 Bf5 Bf3+ Be4 Bg2 Bh2 Bf1 Bh7 Be8 Rg4 Bg6 Qe5 Be4+ Ke6 Ba8 Qe4 Nh5 Bg3 d5+ Ke5 Rb1 Qg6 Rb3 Qe6 Rb1 Nhg2 Rbb2 Bh4 Ng3 Bd8 Rb1 Nh4 Rbb2 Rb7 Rb3 Re7 Rb1 Bc3 Rbb5 Bed4 Ndf5 Bd2 d6 Bb4 d7 Be3 Nd6 Kd4 Nb7 Kd5 Nd6+ Ke5 Rcb8 Bc7 d8Q Qcd5 Nh5 Qg6 Nc8 Beb6 Nd6 Qc5 Qc8 Bd8 Qb7 Kd4 Qd7 Re5 Ng3 Qe6 Qb7 Bg6 Rc8 Bh7 Rc6 Kd5 Qe7 Qd7 Rc8+ Qc6 Nb7 Qe6 Nd6+
2K1nr2/B4kbB/2N4P/p2bQ1Qp/qN2r2P/Rn1B1qq1/7B/1r2rn1R b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 d5 bxa4 d6 Qh4+ g3 Qh6 g4 cxd6 g5 d5 Na3 d4 Nb1 Qc6 Nh3 h5 Ng1 Qh6 gxh6 Bb7 Nd2 Ba6 Nb1 Bc8 Kd2 d5 Kd3 a5 h4 g5 c4 f5 b4 f3 e4 f4 b5 f2 e5 a3 e6 g4 b6 a2 b7 g3 c5 f3 e7 g2 c6 Kf7 c7 Be6 c8Q Na6 b8B Nc5+ Kc2 d3+ Kc3 d2 Kd4 Nb3+ Ke5 d4 Kd6 d3 Kc7 Bg7 Qe1 d1R Qe5 d2 Qg5 Re1 Nc3 d1R Nge2 g1Q Bf4 Nf6 Ba7 Qg3 Nd4 Re8 Nc6 Bd5 Bd3 f1Q Qcf5 f2 Qe5 Rb1 Bh7 Qfg2 Bd3 Q3f3 Bh2 f1N Kb7 Rf8 Kc7 Qgg3 e8B+ Kg8 Beg6 Rae8 Bh7+ Kf7 Kb7 Re6 Kc7 Ne8+ Kc8 Re4 Ne2 Re7 Ned4 Re6 Nb4 Ree1 Qe2 Re4 Ndc6 Rbc1 Rb1 a1Q Rb2 Rcd1 Ra2 Rb1 Ra3 Qd4 Qb2 Qc4 Qbe5 Qd4 Na6 Qa4 Nab4
6Q1/q2rq3/Bk2q2p/1br2PQ1/r2pR3/n1nBNBKb/Nb2r1PR/4B3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 f4 b5 Kf2 d5 c4 Kd7 a4 Kc6 a5 e5 c5 h3 a6 d3 f6 d2 f7 b3 a7 b2 Ra2 e4 Ra4 h6 Nc3 b1Q Nge2 h2 Rd4 e3+ Kf3 b4 Nb5 b3 Qe1 d1R Rd2 b2 Rc2 Qa1 Rc3 b1B Ng1 e2 Bb2 Nf6 Ra3 Bd3 Nh3 Nbd7 Nc3 Ne5+ Kg3 Bg7 f8Q Nc4 Qd2 e1Q+ Nf2 Bh3 f5 Qde7 Na2 Q1e6 Ra4 Na3 Re4 Bb5 Bc3 Rc1 Bc4 Rh7 Qg8 Kb7 c6+ Kb6 c7 Rc2 Qd3 Re2 c8B Bh8 Be1 Rf7 Rf1 h1R Ba6 Rc8 a8B Rc5 Qe3 Qd4 Ng4 Rh7 Re5 Ne4+ Kf4 Rg7 Bd3 Nc3+ Kg3 Qa4 Rf4 Rf1 Rb4 Rf4 Ree4 Rf7 Qc1 Rh7 Ne3 Qa5 B6b7 Qa7 Ba6 Rf7 Re5 Rd4 Re4 Bg7 Rb1 Ra4 Rbb4 Bf6 Rh4 Rh7 Rbe4 d4 Nc2 Qe8 Kf3 Rd7 Kg3 Q8e7 Re5 Bg5 Bf3 Bg4 Rh2 Bh3 Re4 Bd2 Qd1 Bc1 Qd2 Bb2 Qdg5 Kc6 Ne3 Kc7 Rg4 Kb6 Re4
n1b2R2/N1qBr2n/1N3qpR/K1k1p2P/b1R2P1q/1b1nB3/2Q2R2/3Qr1b1 b - - 0 1 illegal: No possible last move, all moves rejected
1bN1qnqk/N3R3/1BbQ1p2/1n2qNp1/B1Q1b2r/2N5/KP1P1n2/1R1rb3 b - - 0 1 illegal: No proof kernel forced: bxDB
4nr2/8/K1bBP1N1/1Q1q1Qp1/1b1RNBqn/2rq1RN1/1Np2qP1/1k2nr2 b - - 0 1 illegal: No proof kernel
1nk3R1/b2br3/1RN1Pp2/3KBp2/b1NN3q/1rNn1Pq1/4B1b1/1qQ1Q1r1 b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 h4 g5 Qd2 gxh4 Qd3 e6 Qf5 exf5 Kd2 Nc6 Kd3 h5 Kc4 d5+ Kb3 Kd7 e4 a5 c4 h3 g4 f6 e5 h4 f3 h2 b6 d3 b7 d2 b8Q d1R c5 d4 Kc4 h3 b4 a4 g5 a3 g6 a2 b5 d3 g7 d2 b6 Ra3 b7 Nge7 g8Q Rh7 Bb2 Nd5 Qg5 Nf4 Ne2 Qc7 Rg1 Nd3 Kd5 h1B e6+ Kd8 Rg4 Qg3 Qe5 h2 b8N Bg2 Qee3 h1Q Be5 Bd6 Nd4 Qhh4 Nc3 Re7 Rb1 a1Q Qgf4 Kc7 Rg8 Bd7 Qf2 Rc1 Be2 Rg1 Qe1 d1B Qc1 Ba4 Rb5 Rb3 Rb4 Nd8 c6 Qb1 Rb5 Kc8 c7 Bc5 Rb4 Bb6 Rb5 Kb7 c8N Nc6 Nd6+ Kc7 Nc4+ Kb7 Rg4 Kc8 Rb4 Ba7 Rb6 Qh6 Na6 Qhh4 Nb4 Nb8 Nbc6 Qf4 Rg6 Qfg3 Rg8+
3r1R2/2qkbq2/1PN3N1/1r1r3B/q3bQp1/1PNb2Q1/pKnn3B/R1N2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 c4 d5 Kc2 g5 h4 f5 e4 g3 e5 a4 c5 g4 c6 a3 h5 g2 c7 a2 b6 d3+ Kb3 d4 h6 f3 e6 f4 e7 f2 h7 f3 Qe1 d2 Bc4 f1B Rh2 d1R Nh3 g1Q Qe2 f2 Qe1 d3 Bg5 d2 Bb5+ Nc6 Nc3 Kd7 Nf4 Ra5 Nfe2 Bb7 c8N Nf6 Bf4 Qc7 Na7 Ne4 Nc1 Bd3 Bd6 f1B Rf2 Qh1 Bh2 Qf3 Qe3 Qf6 Qf4 Qf7+ Bc4 Rg8 h8N Nb4 Nc6 Rb5 Rf3 Rgg5 Ng6 Rgd5 Rf2 Re1 Ka3 d1Q b3 Nc2+ Kb2 Nd2 Rf3 Qe2 Qg3 Qe4 Rf4 Rd1 e8Q+ Kd6 Qe5+ Kd7 Qd4 Qee8 Rf5 Be7 Qdf4 Qa8 Rh5 Qa4 Rh8 Ra5 Rf8 Rdb5 Na7 Bbe4 Nc6 Ra8 Bd5 Rd8 Bc4 Qg8 Bf7 Qh7 Nh4 Qf5 Bh5 Qf7 Ng6 Nb1 Na7 Bde2 Re8 Rdd5 Nc6 B2d3 Rg8 Nd2 Rf8
3R4/q3rq2/p1n3B1/BP2R2r/1N1krrQ1/3q3b/1KpbP1nn/Q1BB3N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 Kd7 Kd2 Kd6 Kc2 Kd5 g4 f5 b4 h5 g5 c5 b6 h3 b5 a6 g6 f3 g7 h2 b7 h4 Bd2 f2 Ra5 h3 Bc1 c3 Qd3 f4 Nf3 c4 Qh7 Ne7 Ng5 f3 Qh4 Nbc6 b8Q Ra7 Nh7 Nf5 Qf6 Nh4 Nd2 Re7 Ra1 Ng2 g8B+ Be6 Qff4 Bh6 Qg4 Qd7 Ne4 Bd2 Rg1 h1R Ng3 h2 Qbf4 Qb7 Qf6 Qa7 Bf7 Ra8 Bg6 Rf8 Qh8 Rf4 Nf6+ Kd6 d5 Ke5 d6 Kd4 Kb1 c2+ Kb2 Bf5 d7 c3+ Kb3 Ree4 d8B Bc8 Ba5 Bf5 Ba3 c1R Rb1 Rc2 Rd1 Re7 Bc1 Rb2+ Ka3 Rb4 Qg5 Bh3 Qg4 Ne1 Bg2 f1N Bc2 f2 Bge4 Ng2 Bg6 Rc4 Re1 Rfe4 Bd1 c2 Kb2 Rc5 Qg7 Rf5 Nd5+ Rf6 Qf7 Rff4 Nb4 Nfe3 Qb3 f1Q Qa2 Qf3 Qa3 Nf1 Qa1 Qd3 Qh4 Nfe3 Ref1 Ng4 Rf3 Rf5 Rgf1 Rh5 R1f2 Rf1 Re3 h1Q Rf8 Nh2 Qg4 Rff4 Rg8 Qf1 Nh1 R4e6 Re5 Qff3 Rc8 Qd5 Rg5 Ree4 Re5 Qf7 Rd8+
8/nbR2RQ1/p3Pq2/K1bB1p1r/2P1b1B1/1rQ1rq1n/2N1rq1B/2N2Bk1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kd2 Ke7 c4 Ke6 e4 Ke5 g4 f5 b4 d5 b5 h5 b6 d3 Kc3 a6 g6 d4+ Kd2 f3 g5 Kf4 g7 Kg3 g6 Kf2 b7 a3 e5 a2 e6 h4 Be2 h3 Bb2 h2 Bf1 Nh6 g8B Bc5 g7 Qf6 Ne2 Ng4 Bf7 Rh5 g8B Nc6 b8Q Na7 Qb4 Rb8 Nc1 Bb7 Na3 Be4 Qc3 Rb3 Rb1 a1R Rg1 h1B Nc2 Ra2 Be8 Bg2 Rh1 Raa3 Rh2 Kg1 Bgf7 Nf2 Bc6 Nh3 Bd5 f2 Qg4 Ra2 Qg7 Raa3 Be2 f1Q Bg4 Qf2+ Be2 Rh7 Bh5 Rh6 Bg4 Rh5 Kd1 d2 Bf1 Qf4 Ke2 d1R Ba1 Rd3 Rb2 Re3+ Kd2 d3 Rb1 Rb8 Rb7 Ra2 Rc7 Rb3 Bb2 Qg3 Ba3 Bd4 Bd6 Bc5 Ba8 Bb7 Be5 Bge4 Bd6 Bc8 Bd5 Bb7 Be5 Nf4 Rh4 Nh3 Bd6 Qf3 Bh2+ Kh1 Bf4 Rg5 Qf8 Bb4 Rhh7 Rg7 Bh2 Rg5 Rhf7 Rh5 Qg7 Bc5 Qa5 Rab2 Be5 Kg1 Qa1 Rb6 Kc3 R6b4 Nd4 d2+ Bd3 Qf2 Bh2+ Kg2 Qa3 d1Q Qb3 Rb5 Qb4 Rc2+ Kb3 Rd2+ Nc2 Qdf3 Ka4 Kh1 Qb2 Rb3 Bf1 Rde2 Qa1 Rbd3 Ka5 Rb3 Bf4 Kg1 Qc3 Bd3 Be5 Be4 Bh2+
1rN1b3/2qn2p1/K1nbQRRB/p2B3R/4P3/P2rNq2/q4b2/rkrR2Q1 b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 d4 Ke7 Kd2 Ke6 Kc3 Kd5 Kb4 Ke4 Kb5 a5 h4 f5 a3 f3 e3 c3 d5 f4 c6 c2 d6 f2 d7 f3 h5 g3 h6 g2 c7 Nf6 h7 Nc6 Rh5 Bd6 Rh1 Rb8 Bc4 f1R Nh3 g1B Nf4 f2 Rh5 b6 Bd2 c1R Ng6 Bb7 c8Q Qc7 d8R Nd7 Bb3 Kd3 e4 Rf8 h8R Rf3 Be6 Ba8 Qe1 Kc2 Rhf8 Rd3 Ka6 b5 Nc3 b4 Rf6 b3 Bd5 b2 Ne7 b1Q Nd1 Qa2 Ne3+ Kb2 Qd1 Re1 Rg6 f1Q Rf8 Qf3 Rff6 Bf2 Qe8 Rg1 Nc8 Rc4 Qf1 Nde5 Qf7 Nd4 Rh3 Bc6 Ng4 Be8 Qe6 Nd7 Bh6 Nc6 Rh5 Rcc3 Qg2 Rf1 Qg1 Rc2 Rc1 Rc5 Rc4 Ra1 Rc1 Rcc3 Rf1 Rcc1 Rd1 Kb1 Ne3
2n1N3/rBrqQ1p1/rRPBp1P1/q7/Nn3QK1/bk5n/N1n2b1R/1Nq5 b - - 0 1 illegal: No proof kernel
RN1q4/1Q3Np1/KP1p2k1/3B1Nqb/2nPn1r1/1nR4N/1q2Qr1n/b1B3r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b3 e5 b4 exf4 axb5 c5 Ba3 cxb4 Bb2 Nh6 Bc1 Ng8 h4 a5 c4 f5 e4 Kf7 Ke2 d6 Kd3 f3 b6 a4 c5 f2 Kc4 b3 Kb5 f4 d3 b2 c6 f3 e5 a3 h5 g3 h6 g2 e6+ Kg6 c7 a2 e7 Nd7 e8N Be7 h7 Ngf6 Qe1 Ne4 Bg5 Ne5 Na3 Nc4 Qe2 Bf6 Rh3 Rf8 Bc1 Ra4 Nc2 Bg4 c8Q Bh5 Nc7 b1N Nd4 Nbd2 Nf5 Nb3 Na6 Bc3 Rb1 a1Q Qb7 Qb2 Ra1 Qg5 Rg3 Bd4 Nh3 g1R Bg2 f1N Ra3 f2 Nb8 Nh2 Rf3 Rb4+ Ka6 f1Q Re3 Qd8 Bf3 Qg2 h8N+ Kh7 Nf7 Qgg5 Bg2 Kg6 Rf3 Qa2 Ra5 Ba1 Rg3 Qb2 d4 Rb5 Rc3 Rd5 Ng3 Rf5 Ra4 Rf4 Nf5 Rh4 Kb5 Rg4 Ra8 Ng3 Bd5 Ne4 N7h6 Rf6 Ka6 Rf8 Ng3 Rf3 Ngf5 Rf2 Nf7
QqrkBb2/nr3P2/1N1B2R1/q2bn2b/2n1r3/3Np1PK/2p3nQ/1N2N1R1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 h5 Kf2 e5 d4 c5 b4 a5 b6 h3 Kg3 h2 b7 h4+ Kf2 a4 g3 a3 Kg2 h3+ Kf2 e3+ Kf3 e2 f5 e1N+ Kg4 c3 d5 c2 d6 e4 b5 e3 b6 a2 Bg2 c4 Qd5 c3 Qb3 Ra4+ Qc4 Nc6 b8Q Na7 b7 Ne7 Qa8 Nd5 b8N Nb6 Ba3 c1N Nd7 c2 f6 Ncd3 Bc6 Ng2 Nf3 Ba6 Bb5 Qb8 f7+ Kd8 Rg1 h1R Ne1 h2 Bb4 Rg8+ Kh3 Ne5 Qe2 Nbc4 Nb6 Bb7 d7 Bf3 Bd6 Bh5 Rf1 Rg1 Rf6 h1B Rg6 Rf1 Qf2 Rb4 Qg1 Rf4 Qh2 Re4 Bc7+ Ke7 d8N Rb2 Be8 Rh8 Nd7 Rb7 Ne6 Rg8 Nf4 Rh8 Bd6+ Kd8 Na3 Rg8 Rc1 a1Q Nb1 Qa5 Nb6 Rd4 Bd7 Bh6 Bg4 Nh4 Nc3 Bd5 Neg2 Re4 Rg1 Bg7 Ne1 Ng2 Nb1 Bh6 Bb4 Kc7 Bd7 Rc8 Bd6+ Kd8 Be8 Bf8 Nfd3
4q2n/b1kB1Pq1/2bp1b2/1R1PBN1R/2bN1p2/K3nBQ1/n3Q2r/rB4q1 b - - 0 1 illegal: No proof kernel
2nk2q1/1bn2p1n/rQR1R1b1/B1KQNB2/1P2Nr2/n4P1B/1rB2p2/1qq5 b - - 0 1 illegal: No proof kernel
N1Q2n2/1qN1np1R/2b3B1/4r2P/Qr2r2b/1p1kR3/1P1B2B1/K1nbrqB1 b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 cxd5 hxg4 a5 Nc6 a6 Nb4 Bh3 Nxa6 Bg2 Nb4 Bf1 Na2 d4 Kd7 Kd2 Kd6 Kc2 c5 e4 g5 h4 b5 h5 a5 Qf3 g3 Qb3 g4 Qf3 a4 Qa3 g2 Qd3 a3 Ne2 g1N Kb3 g3 Bd2 b4 Qb5 f3 Nf4 c4+ Kc2 g2 Be2 c3 Qc4 f2 Rh2 f1B Ne6 Qe7 Bd3 Rb8 Qa6+ Rb6 Qa4 Ne2 Kb3 c2 Nc3 g1Q Nb5+ Kd7 d6 c1R d5 Rc5 e5 Bb7 Rg2 Nf4 Re1 Be2 Rg7 Ng6 Rh7 Qf1 Bb1 Bg7 Be4 Bf6 Bg2 Kc8 d7+ Kb8 d8B Bh4 d6 Bbf3 d7 Kb7 Ra1 Kc6 Re1 Kd5 Bc7 Ke4 d8Q Rc4 Qc8 Kd3 Bd8 Rb8 Bb6 Bc6 Bf2 Bg4 Bg1 Rb6 Re4 Qb7 Re1 Nc3 Re4 Ne2 Ka2 Bf3 Nd8 Bg4 e6 Rd4 e7 Rc4 Kb3 a2 Ne6 a1R Re5 Rb1 Ka2 Re1 Re4 Nc1+ Ka1 Bd1 Re2 b3 Qaa8 Kc2 Qa4 Be4 e8B Bd5 Nbc7 Rbb4 Bd7 Kd3 Na8 Bc6 Rg7 Re4 Nec7 Rh6 Be6 N8e7 Bf5 Nf8 Rh7 Re6 Bg6 Re5 Re3+
rq3qqn/4p1Q1/2N4q/1BkN4/2P2B1Q/1bR2r2/P1Qn1Rpb/1b1KQr2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 f4 b5 h4 d5 f6 Kd7 f5 Kd6 f7 g5 c3 d3 h5 b3 h6 d2+ Ke2 d4 h7 d3+ Kf2 b4 f6 b2 Qb3 d1Q Qc2 d2 Rh4 b3 Be2 g3+ Ke3 g4 Bf1 g2 Bd3 g3 Na3 b1B Rh1 b2 Qa4 Nc6 Qa5 Nh6 Rh3 Nd4 Nb5+ Kc5 Nf3 Be6 Ne5 Nb3 Nc6 Bg7 f8Q Qh5 f7 Be5 Qg7 d1R f8Q g1Q+ Qf2 Rf8 h8Q Nd2 Qhh7 Rf3+ Ke2+ Qd4 Qe4 Nf7 Qh4 Rf1 Rh2 Bb3 Nc7+ Kd6 Bb5 Qh6 c4 Qdf4 Qe1 Nh8 Rf2 Kc5 Nd5 Qf7 Qc7 g2 Qa5 Bh2 Qac3 Qg8 Qc2 Qh1 Kd1 Qg1 Re2 Qd4 Rf2 Qdf6 Nd4 Qff8 Nc6 Ne4 Bg5 Nd2 Bf4 Ba4 Qb3 Bg6 Rc1 b1Q Ba6 Qb2 Rc3 Bb1 Qc2 Qbb8 Bb5 Bb3 Qgg3 Nf7 Qgg4 Nh8 Qg7
4b1NQ/q1B1p1q1/1r4pR/PQ2rk1n/2nNb2b/1P1B4/K1RN4/1nbq2N1 b - - 0 1 illegal: No proof kernel
KQ1q1r2/2Pb2p1/Rq3N1b/rPQ1n1n1/3N1BR1/q2B1B1p/1k3r1n/B5n1 b - - 0 1 illegal: No possible last move
Knk5/2p3RN/1Nr1B2P/2nqqN2/1p2Qb2/Q1q1N3/B1P2Rb1/1rrn2n1 b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Bf4 g5 Bg3 hxg3 Qd5 g4 Qd3 Qh4 Qd1 Qd8 Kd2 d5 Kd3 Kd7 Kd4 b5 f4 g5 e4 b3 h4 g2 a4 g3 h5 b4 a5 b2 h6 g4 f5 Bg7 Kc5 d4 a6 d3 a7 d2 e6+ Ke7 f6+ Ke8 e7 Kd7 e8N Bb7 e5 Bc8 f7 Bf8+ Nd6 Nc6 Na3 b1R Bc4 Nf6 Qe1 d1N Ba2 Bb7 Nf3 g1N Rh2 g2 Qe4 g3 Nc4 Rg8 Ne3 Rg6 Ng5 Nb8 Nh7 Bg7 Ndf5 Kc8 f8N Nfd7+ Kb5 Rc6 e6 Nc5 e7 Qd5 e8B Be5 Bf7 Bf4 Nd7 Ne2 Bc4 g1Q Be6 g2 Ba2 Qe1 Ka5 g1Q Rf2 Qg5 Kb5 Rb3 Ka5 Qc3 Kb5 Nb2 Rg1 Nd1 Rg3 Qgf6 Rg7 Ng1 Ka5 Rb1 Kb5 Qfe5 Ka5 Nba6 Kb5 Rb8 a8Q Rc1 Qa7 Ra8 Ka5 Rb1 Kb5 Nb8 Qa3 Raa6 Qc1 Ra1 Qg2 Qf3 Bad5 Rd6 Bb3 R6a2 Qa3 Rb2 Ba2 Rc1 Ka5 Qfe4 Qf3 Q4d4 Qd5 Qdd2 Qd3 Bg2 Qe4 Qdd5 Kb5 Rbb1 Ka5 Nc6+ Kb5 Na4+ Ka6 Nb8+ Ka7 Rc6 Ka8 Nc5 Nb6+
Q1b1R1N1/1P3r2/1B1N2B1/4Knn1/r2N2kN/Ppqp2Qn/1r1qn2b/1bR5 b - - 0 1 illegal: No possible last move, all moves rejected
q2RQ3/bP3Rq1/6Nr/Q1p1q1b1/2P1Rb1B/KRp5/n2nB3/q2k1rNn b - - 0 1 illegal: No proof kernel
4n3/1P1Nr1pB/3b2q1/2pr2BB/2nBQ3/nbQb3k/RN1R2qP/r1n1K3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 d4 Kd7 e4 Ke6 b4 f5 e5 c5 b6 a5 b5 c3 b7 f3 b6 g3 Na3 f4 d5+ Kf5 e6 Kg4 d6 c2 e7 a4 e8B g2 d7 Qf6 d8B Nd7 b8Q Bd6 b7 Qg6 Nb5 a3 Bf6 a2 Nd4 Ne5 Be2 Nc4 Ne6 Na3 Bd7 Rh5 Bc6 Rd5 Nc7 Be6 Bd4 Nf6 Nb5 Ne8 Qd3 Kh4 Bce3 c1N Qe4 Bf7 Nc3 f2+ Kd2 f1N+ Ke1 Bg8 Na4 Nd2 Nf3+ Kh3 Nb2 Ndc4 Ne5 f3 Nd7 Bf7 Rf1 g1Q Bg5 Qg2 Rf2 Bg8 Bd3 Be6 Rd2 f2+ Kd1 f1B Ke1 Bf7 Qd8 Rc8 Qa5 Rc7 Qc3 Be2 Bc2+ Bd3 Bd1 Bg8 Bh5 Be6 Nb8 Re7 Nd7 Bg4 Ba4 Bd1 Bb5 Bb3 Bc6 Rf5 Bd5 Rfe5 Bg8 Rd5 Bh7 Ne2 Rad1 a1R Rc2 Nc1 Rdd2 Qf6 Na4 Qf7 Ra2 Qg6 Nb2
1r4RB/P1bRKbQ1/1q2N2N/1rp5/1Q1nn2p/3r1r1B/1nP2k2/b1N2N1q b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b3 e5 b4 axb4 dxe5 f5 Ba3 fxe4 Bb2 Be7 Bc1 Bf8 Ke2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 c5 a4 b5 f4 h5 e6 h3 a5 h2 e7 e3 Kd6 Ke4 g4 h4 g5 b3 a6 b4 g6 e2 g7 e1B a7 b2 f5 b3 f6 Ba5 f7 Nf6 g8Q Nc6 Bg5 Qb6 Na3 b1R Nh3 b2 Qc1 Kf3 Qe1 Bg7 f8N Rb8 e8N Nd4+ Ke7 d5 Rg1 h1Q Nf2 Be6 Qb4 Bf7 Nd6 Rd1 Nd3 b1R Ne6 Ne4 Nc1 Rd3 Bh3 Kf2 Bf6 Rh6 Be5 Rf6 Nac4 Rff3 Nd2 Rbb3 Nf1 Bh8 Qc4 Rb5 Nf5 Bg7 Nh6 Bh8 Bh2 Be5 Qg7 Bc7 Bf5 Bc3 Qb4 Bb2 Rb1 Ba1 Be5 Rc3 Qg5 Nb3 Ne2 d4 Rd1 d3 Nc1 d2 Bh3 Rce3 Bh8 Rc3 Re1 d1N Re3 Nb2 Rd3 Nd6 Qe5 Ne4 Rd7 Nd4 Rg8 Rcd3 Qg7
1B1Rbn2/P3r3/BRP1q1Q1/n1krq2b/1N2pnb1/1Q2N3/p4Q1K/bq4Q1 b - - 0 1 illegal: No proof kernel
3NQnb1/PRp5/3Prqbq/2rQRB2/R5rN/r1p4K/kqnb3B/3R4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 dxc4 Ne2 g5 Ng1 gxh4 g4 Kd7 a4 Kd6 f4 Kc5 Kf2 h5 Kg2 e5 g5 b5 d3 h3+ Kh2 c3 a5 b3 d4+ Kb4 g6 h4 f6 b2 f5 e4 f7 e3 g7 e2 a6 e1R d5 Nc6 d6 Re6 f6 Nge7 g8Q Rh5 Bg2 Nd4 Bc6 Rc5 Qg6 Bh6 f8R Bd2 f7 Nc2 Qgg4+ Kb3 Be4 b4 Qg8 Ng6 Ne2 Qf6 Re8 Nf8 Nf4 Bb7 Bh7 Bd5 Bf5 Ra7 Ra5 Ra8 Rb5 Ka2 Rb7 b3 Qf3 Bc4 Rd1 Ra7 Qd5 Ra8 Na3 b1Q Ng2 b2 Nb5 Qa1 Na7 b1B Nc6 Qb2 Nd8 Ra7 Kg1 h2+ Kf2 h3 Kg3 h1R Nh4 h2 Kh3 Rg1 Re7 Be1 Bf4 h1Q+ Bh2 Bd2 Qg6 Rg4 Qh5 Nd7 f8R Bb3 Rfe8 Nf8 Rg7 Qe4 Ree7 Qf4 Qe8 Q4h6 Rg5 Re1 Re4 Ra8 Qd3 Bg8 Rc4 Ree4 Qd5 Re6 Be4 Nd4 Re5 Bd3 Bg2 Bg6 Be4 Nc2 Bf5 Rc8 a7 Rb8 Rbb4 Rbb5 Rb3 Ra5 Rb7 Ra3 Ra4+
Qb4NN/p3qbrn/2Q4r/R2Bn2Q/K3b1Q1/1PP2p2/krnR2q1/4B2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 e4 Kd6 g4 Kc5 g5 Kb4 b3 h5 e5 f5 b6 d5 e6 h3 g6 f3 b7 d3 e7 f2 e8Q h4 g7 f4 Qee1 d4 Qe3 h2 Qe6 h3 Be2 f1Q Qg4 Bd6 Bf3 Qe7 Bc6 Nf6 g8Q Nbd7 Ba4 Bb8 Q8e6 Qg2+ Ne2 Ne5 Bc6 Nh7 Qh6 Be6 Ra5 Bf7 Nc3 Rg8 Re1 h1B Ne4 h2 Bd5 Rg6 Bb2 Rg7 Kc1 d2+ Kb1 d3 Ka2 Qg3 Nf6 Be4 Ng8 h1B Qc6 f3 Nf4 Qf2 Ng6 Qg2 Qc1 d1N Nh8 d2 Re2 Ne3 Qcg6 d1R Q6h5 Bg6 Rd2 Bf7 Bd4 Re1 Bc5+ Kc3 Ka3 Re2 Ka4 Rf2 Qg1 Kb2 Qc1+ Ka2 Bb4 Bc7 b8Q Re2 Qe8 Bb8 Rd1 Rf2 Be1 Rd2 c3 Rb2 Rd2 Nc2 Qd1 Bd6 Qb5 Rb8 Qde2 Rb6 Qc6 Bb8 Qec4 Ra6 Qa8 Rh6 Qcc6
r1n3Bq/p4B1P/B2Q2r1/RnPq1rpb/2NQkN2/1n1bb1b1/1B4K1/1R6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kf2 Ke7 e4 Ke6 b4 f5 c4 d5 h4 g5 c5 a3 b5 a2 b6 d3 b7 d2 h5 d4 h6 d3 h7 g3+ Kg2 f4 Kf3 g2 Rh4 Bd6 Na3 Na6 b8Q Ne7 Nc2 Rg8 Qb6 Rg6 Nh3 g1B Bb2 Nc7 Qc6 Nb5 Rb1 a1N Kg2 Nb3 Na3 Ba6 Nc4 Nc8 Qb6 Qe8 Qd8 Bc7 Qd4 Qh8 Rh6 Be3 Rh4 Kf7 e6+ Ke7 e5 f3+ Kh1 f2 Kg2 Bd6 Nf4 Bc7 Be2 f1R Rh1 Rf3 Ra1 Bb8 Ra5 Bd6 Qc2 Bb8 Rb1 d1Q Qcc3 d2 Qcd3 Qc2 Bf1 d1B+ Qd2 Qf5 Bd3 Kf8 e7+ Kg7 e8B Qd7 Bf1 Qd5 e6+ Be5 e7 Kf6 Be2 Kf5 Bf7 Bb8 e8B Be5 Q4c3 Ke4 Bg8 Bb8 Bef7 Bc7 Nd3 Bg3 Qg7 Rff6 Nf4 Rf5 Bf1 Bh5 Qf8 Na3 Qd6 Bb5 Ne5 Bbe2 Nc4 Nb5 Qc3 Bd3 Be2 Rff6 Qd4+ Kf5+ Bf3 Be2 Ne5 Na3 Kh3 Bb5 Be2 Ba6 Qd2 Ke4 Kg2 Rf5 Qc3 Bd3 Bf1 Bc2 Ba6 Bd3 Nc4 Nb5 Qd4+
N2n3r/pp2k1rP/q1b1b3/n1RP4/1B4BQ/bNq2b2/1BR3B1/1KQr1q2 b - - 0 1 illegal: No proof kernel
r2k4/1R2bp1n/b1K1R1qP/brp2bNn/b2BB3/4P3/b2N1QN1/NnQ5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 b5 h4 c5 a4 g5 d4 g3+ Kf3 g2 Ke4 f3 e3 g4 h5 f2 a5 g3 h6 b3 a6 b2 d6 b4 Kd5 b3 a7 Nd7 Nd2 b1B Bd3 f1B Nh3 g1B Bb2 g2 Be4 Qg5+ Kc6 Bh2 d5 g1N Bd4 b2 Qc1 Ngf6 Nf4 Nf3 Ra6 Qg6 Ng2 Bc2 Nb3 b1B Na1 Rb8 a8N Nd2 Nb6 Nh5 Nc4 Ndf6 d7+ Kd8 Rg1 Bf4 Ra7 Ba2 Rb7 Nb1 Nd2 Ba6 Rd1 Ke7 d8N+ Bc7 Ne6 Nh7 d6+ Ke8 Rg1 Ba5 Ng5 Kd8 Rf1 Bg4 Rf6 Be7 d7 Bf5 Re6 Ba4+ Rb5 Bh3 Ndb3 Bf5 Bg7 Rb6+ Kd5 Kc7 d8Q+ Kb7 Qd6 Kc8 Qf4 Rb7 Qf2 Kd7 Bd4 Ra8 Rbb6 Kc8 Rb5 Rbb8 Kc6 Kd8 Nd2 Bd1 Rb7 Bdb3 Rc7 Rb5 Ra7 Ba4 Rb7
3nbb2/KRq2B2/2Nn4/2Bn2b1/1R3r1Q/1r2pB2/1NQpPBPn/k1n4b b - - 0 1 illegal: No proof kernel forced: bxLB
1n2b2q/bR2r1Qk/1n6/Q2p2KP/B1n1p1R1/3bPR2/2b1RNB1/1n1n2rN b - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 axb5 h6 d4 cxd4 Be3 Qb6 Bf2 Qd8 Bh4 gxf4 g5 Qc7 g6 Qd8 Bg5 hxg5 Kf2 a5 Kf3 f5 b4 d5 h4 e5 c4 a4 b6 a3 c5 d3 g7 Kf7 e3 Kg6 b7 d2 c6 a2 h5+ Kh7 c7 g4+ Kf2 g3+ Kf3 g2 b5 e4+ Ke2 f3+ Kf2 f4 b6 Bc5 Qc1 Bd7 c8B Nf6 g8R Ra7 Rf8 Rg8 Nc3 Be8 Qa3 Nfd7 Nh3 g1N Nd1 Ne2 Rg1 Nc3 Qa5 Nb1 Rg4 Qf6 Bg2 Qh8 Ng1 Bd4 Ne2 Rg7 Ng3 Re7 Kf1 f2 Nh1 Rg7 Ke2 f1B+ Kf2 f3 Kg3 f2 Kh4 Bd3 Rf3 f1B Ndf2 Re7 Kg5 d1N Qa3 Bc2 Qa5 Nc6 b8R Bfd3 b7 Nb6 Bd7 Ra6 Ra8 Nb8 Ba4 Ra7 Qb4 Ra5 Ra7 Rc5 Qc3 Rc6 Qa5 Rg6+ Kh4 Na3 Rb1 a1N Rb2 Nb3 Ra2 Nd2 Rb2 Rc6 Kg5 Nac4 Ra2 Nb1 Rb2 Na6 b8Q Bc5 Qc7 Nb8 Rb7 Rg6+ Kh4 Bb3 Re2 Bbc2 Rgf4 Rg3 Rg4 Bd4 Kg5 Bc5 Bf1 Rg1 Bg2 Na8 Qe5 Ba7 Qb2 Nab6 Qg7+
Q4b1R/1r2bnBb/5P2/3RnbrQ/1qp3R1/N2p3P/BR2b1N1/2kq2bK b - - 0 1 illegal: No proof kernel
5r1q/R5Br/Nnq1RP1R/p1pkn1b1/2r1P2r/7b/1rRQBK1Q/r6N b - - 0 1 illegal: No possible last move, all moves rejected
8/2b1qbBN/1Rp2PBK/4Q3/b1r3Q1/1npP1nRb/1Rk1b1n1/1R3nNr b - - 0 1 illegal: No possible last move, all moves rejected
b7/1n1BB2p/1N1rQPp1/RN5r/n1kP2qN/1nb3Qb/2Rn1KbN/7b b - - 0 1 illegal: No proof kernel
K1B2bR1/brQPkB2/r2bn2r/2b5/1Nq2R1p/1N1r1Pp1/7B/nQ2B2b b - - 0 1 illegal: No proof kernel
5k2/1N1n4/1bp1B2K/nbBr1b2/1p3BP1/NQr1q1RQ/2Pr1Rn1/B4b1n b - - 0 1 legal: proof: e4 d5 b4 dxe4 f3 a5 Ba6 axb4 Bd3 Qd7 Bf1 Qd8 Na3 g5 Nb1 g4 g3 h5 fxg4 h4 Bh3 hxg3 Bg2 Ra6 Bf1 Ra8 Ke2 e5 Ke3 b5 a4 f5 h4 b3 d4 b2 a5 f4+ Ke2 b4 a6 e3 Kf3 e4+ Kg2 f3+ Kh3 g2 h5 e2 a7 e1N h6 e3 h7 e2 d5 f2 d6 Nc6 Ra6 Nd3 Na3 e1N Qf3 b1B Rh2 Nf6 Kh4 Nd7+ Kh5 Qe7 Bf4 Na5 Nh3 g1R Ng5 c6 Qh3 Rg3 Nf7 Ba2 Nd8 Bc4 Nb7 Qe3 Bg2 f1B Bd5 Bg7 Be6 Bb5 Rf2 Bd4 Kh6 Rg8 h8B Ng2 Bg7 Bb6 Ba1 Rb8 a8Q Kf8 Qa7 Rg5 Qa8 Rd5 Qa7 N7c5 d7 Rf3 d8B Nd7 Bdf6 Rg3 Bfd4 Ra8 Re2 Nf2 Qb8 Nh1 Rf2 Qe2 Qe5 Rc3 Qe4 Qe3 Qd3 Nf6 Ra7 Bd7 Qc4 Rd8 Qb3 Bc8 Bc5+ R8d6 Bg8 Bf5 Be6 Nd7 Nb1 Nc4 Ra2 Na5 Na3 Rd4 Rb2 Rd2 Rb1 Rd5 Re1 Rd2 Ree2 Rd5 Rf3 Rd2 Rg3 Rd5 Rf2 Rd2 Bd4 Rd5 Bc5+
3b4/3PbK2/1kNB2pQ/n1rrr2R/1pb2P2/1r4b1/R1nNQBB1/5qnB b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 b5 Kf4 e5+ Kf5 c5 Kg6 Kc7 f4 c4 d4 b3 h4 g3 a4 b2 d6+ Kb6 d7 g2 d5 b4 d6 e3 h5 c3 h6 e4 h7 c2 Qh5 e2 Qe5 e1B Kf7 e3 Nd2 b1R Ngf3 g1N Qe7 g6 Nh4 e2 Ra2 Bg3 Qg5 e1B Bh3 Nc6 Qh6 Ba6 Nf5 Na5 Bg2 Be7 Rh5 Nf6 Nd4 Rb3 Nc6 Re8 h8B Nd5 Be5 Bc4 Bh1 Qc7 d8Q Bgh4 d7 Beg3 Bcb2 c1R Bd6 Bhf6 Qc8 Bd8 Ba1 Bfe7 Bf6 Qb7 Bh4 Qa6 Bg2 Bd3 Bh1 Rc5 Bg2 Ne3 Bh1 Bh2 Bf2 Nc2 Bg2 Bg3 Bh1 Bg5 Bg2 Re5 Bh1 Bc7 Qe8 Bc4+ Qe6 Rd5 Qe2 Re8 Bg2 Ree5 Bh1 Be7 Bg2 Nb7 a5+ Kb5 Bh1 Bcd8 Bg2 Qa7 a6 Na5 Bh1 Kb6 Bg2 Qb7 a7 Qa6 a8B Qb5 Bh1 Qa4 Rb2 Qa1 Ra2 Qf1 Nb8 Rdd3+ Bad5 Rd4 Nc6 Rdd3 Ke8 Rd4 Bdg2 Rdd5 Kf7
1K3BB1/1NP1r2b/R1rb4/1n2Q1NP/QR1q4/4pbb1/r1np1kN1/1n3Nn1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 Kh4 b6 e5 f5 a5 b7 g5 c5 d5 c6 g3 h3 g4 f6 e3 Kd3 a4 b5 a3 b6 e2 c7 e1B f7 a2 Bf4 g2 Be2 g3 Na3 Rh7 Be3 Nc6 b8N Bd6 f8N Na7 b7 Ne7 Nc2 Nb5 Bh6 Ra7 Rb1 a1N Nc6 Ra2 Ne3 Nc2 b8Q Bg4 Bg7 Bf3 Na5 Bf2 Ne6 e4+ Kd2 d3 Ng5 d4 Rb4 Rh6 Nf1 Nd5 Nb7 Ndc3 Bf8 Re6 Qa1 Re7 Qa7 Qd7 Qa4 e3+ Kc1 Be1 Bd1 Be4 Ne2 g1R Nf4 g2 Bf3 Bf5 Bd5 Bh7 Bg8 Nb1 Kd1 d2 Ke2 d3+ Kf3 Bg3 Qe5 Rg7 Rh2 Rg6 Ke4 d1B Kd5 d2 Rh1 Re6 Rh2 Re7 Rh1 Qg4 Kc6 Bf3+ Kb6 Qd7 Rh2 Rh1 Ka6 g1N Ng2+ Kh5 h4 Qg4 Ne1 Qd4 Rf2 Kg4 h5 Bg2 Rf6 Bf3 Ng2 Rh4 Nf7 Kh3 Re6 Rf4 Ng5+ Kg4 Qh8 Rf5 Rh6 Rc5 Qe5 Rc4 Nd8 Rc6+ Kb7 Bd5 Kb8 Bde4 Ngf7 Kf3 Ng5+ Kf2 Nb7 Bf3 Rf6 N5a3 Rb6 Nb5 Ra6 Qc5 Rf4 Qb6 Rc4 Qd4 Rb4
2n1bQ2/pQ2NB1n/1q5b/1PQ5/1n2bRpr/B2N2P1/2r1R1rb/1Knk1Q2 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kf2 b5 axb5 h5 Ke1 h4 Qd3 h3 Qf3 Rh6 Qf2 Rh8 Qg2 hxg2 Kd1 Ke7 h4 Kf6 b4 Ke5 e4 g5 c4 d5 Kc2 f5 h5 f3 b6 f4 b5 d3+ Kb2 Kd4 c5 d2 c6 Ke3 e5 d4 c7 f2 e6 g4 h6 f3 e7 d3 e8Q+ Ne7 b7 Nd7 b8Q Nf6 h7 Bh6 Qb7 Bd7 c8Q Qb6 Qg8 Be8 Nh3 g1B Ra2 Bh2 Qc3 Rc8 Qcb3 Rc2+ Ka1 Nc8 Bg2 Ke2 Q3f7 d1N Qb8 f1N Qg5 f2 Qbb7 d2 Ba3 Nfe3 Qc5 f1B Nf2 Nc3 Bd5 d1R Nd3 Bg2 Rf1 Rdd2 Rf4 Kd1 Qff8 Rf2 Bf7 Ne2 Rb2 Ned5 Nc3+ Kd2 Ra2 Nc1 Kb1 Nb4 Nd5 Be4 Ne7 Rg2 Rb2 Kd1 Ra2 Rg8 h8Q Nh7 Qa1 Rg5 Qf6 Rh5 Qff5 Rh4 Rb2 Rc3 Re2 Rc4 Qf2 Rc3 Q5c5 Rc2 Qf1#
1RnQbbn1/b3b2K/4RkN1/Q4q2/p2N4/rPnq1pB1/P2NN2B/2nr4 b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 Bh3 e5 dxe5 gxf4 g5 Bd6 Bf5 Bf8 Bg4 hxg4 Kf2 Ke7 h4 a5 e4 c5 b3 f5 g6 d5 h5 g3+ Kf3 d4 e6 g2 h6 d3 h7 c3 e5 d2 g7 c2 Qe1 d1N Ne2 g1B Nd2 c4 Bb2 c1N Rb1 Ke8 e7 Kf7 e8N c3 Nc7 c2 Ne6 Ba7 N6d4 Nc6 e6+ Kf6 e7 Bd7 e8Q Nce7 Ba1 Qc8 Qd8 Be8 Bb2 Nc3 Ba3 Nd3 Bd6 c1B Rh2 Bb2 Rd1 Nc1 Rh6+ Kf7 Bb8 Ba3 Re6 Qc4 Bc7 Nc8 Be5 Bae7 Bb8 Nf6 g8N Kg6 Nh6 Kg7 Nf7 Ng8 Ne5 Qa6 Ng6 Qd3+ Kf2 f3 Kg3 f4+ Kg4 f2 Kh5 f3 Bh2 f1Q Bg3 Nf6+ Kg5 Qh3 Bh2 Rg8 h8B+ Kf7 Bg7 Qhf5+ Kh6 Ng4+ Kh7 Nh6 Bge5 Rg7+ Kh8 Ng8 Ngf4 Rg3 Ng6 Rg1 Beg3 Rf1 Re4 Kf6 Kh7 Rb8 Re5 Rb4 Rb5 Ra4 Rb8 Ra3 Qf2 a4 Re1 Qg5 Qe3 Qgf5 Qe5+ Kf7 Qea5 Kf6 Nf4 Rg1 Re5 Rh1 Nfe2 Rd1 Re6+
q3Bknb/5n2/2r1Bbp1/3RPr2/8/2N1qp1Q/NNKNb1Pr/1Qb1Rr2 b - - 0 1 illegal: No proof kernel
b4Qr1/2RR2q1/n1r1p1rN/qk2b2B/nPB3p1/4QNP1/1B1n1B2/K1n4r b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 g3 fxe4 Ne2 b5 axb5 h5 Ng1 h4 Qf3 h3 Qg2 hxg2 Kd2 a5 b4 d5 f4 Kd7 h4 g5 c4 e6 Kc2 g4 Kb2 d3 b6 Kc6 h5 a4 b7 e3 c5 d4 f5 d2 h6 d1N+ Ka2 e2 h7 e1R f6 a3 f7 d3 Rh4 d2 Nf3 g1N Ng5 Nf6 Bc4 Bg7 f8Q Qa5 Bb2 Na6 b8B Rg8 h8Q Ne2 Ba7 Rh1 Qh6 Ne4 Nf7 Be5 Qe3 Rg6 Rh7 Bb7 Nh6 Re8 Rd7 Ba8 Qf5 Reg8 Qf8 Ndf2 Bb6 d1R Nd2 Nd3 Nf3 Nd2 Rc1 Nc3+ Ka1 a2 Bb3 Kb5 c6 Rh2 c7 Na4 c8B Rdh1 Bb7 Rh5 Be4 Rf5 Bbd5 Rf4 Bf5 Rc4 Bc5 Rc3 Bc4+ Kc6 Qg1 Qb6 Rh7 Nc7 Bd5+ Kb5 Rg7 Rf6 Bd4 Nac5 Bg6 Qa6 Rc2 Nc1 Bh5 Rg6 Qe1 Qa7 Bf2 N7a6 Qe3 Rc4 Rc3 Qe7 Rd3 Qf6 Rc7 Qg7 Be4 Rc2 Rdd7 Rc3 Bd5 Rc4 Bd4 Rc3 Kb2 Rc4 Bc3 a1Q+ Kc2 Qa4+ Kb2 Qa5 Bd4 Na4+ Ka1 Rc2 Bb2 Rc6 Bc4+
1b2R3/2b1K1Nr/2pQn3/B2b2r1/3Pq1P1/1Rp3N1/b1Br1qnr/2QBk2B b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Ke5 h5 g4 b5 a4 c3 f4 e3 a5 b3 d4+ Kb4 f5 b2 g6 e2 a6 e1Q+ Be3 h4 f6 h3 a7 h2 f7 Na6 g7 Rh7 Qe2 Bb7 Ke6 Nf6 g8B Qe8 Nf3 Qf2 Bg5 Nc5+ Ke5 Ne6 Nbd2 b1R Ra3 Rd1 Qe1 Nh5 Ra1 Nhf4 Bh4 Ng2 Ng5 Bd5 Nb1 Rd2 Rg1 h1R Be2 Rh2 Ra2 Kb3 Rf1 b4 Ra3+ Kc2 Bd1+ Kc1 Qe3 b3 Re1 b2 Rb3 Rb8 a8B Rb5 Bc6 Rc5 Ba4 c6 Qf4 Bh6 f8Q Bg7+ Kf5 Be5 Re2 Bb8 Re4 Nd8 Ne6 Ra5 Ng7 e5 Kf6 Ne6 Re3 e4 Qd6 Bc7 Re2 e3 Re1 Qg6+ Ke7 e2 Bf7 Qe4 Bg6 Qe5 Be4 Qf5 Bf3 Qe4 Bf6 Bc4 Qh6 Rg5 Be5 Bd5 Bc2+ Rd1 Nd2 b1B Nf1 Ba2 Ng3 Kd2 Bf6 Nh4 Bh1 Ng2 Rf1 e1B Be5 Qfe3 Rf8 Bf2 Re8 Ke1 Nf1 Bh4 Ng3 Qf2 Bf6 Rf5 Qc1 Rg5 Kd7 Bb8 Bd8 Bc7 Ke7 Bb8 Ne2 Bg3 Ba5 Be5 Ng3 Bc7 Qb2 Rd2 Bd1 Bf4 Qc1 Bb8 Rb5 Be5 Bac2 Bf4 Rb3 Be5 Qd7 Bec7 Qd6
1K4bn/1B2Rrb1/QP1P2R1/r2q1rq1/ppR3n1/R2N1n2/Q7/N2rB1nk b - - 0 1 illegal: No proof kernel
B1q1rb2/1N2n1r1/Rp3K2/2Qp1R2/3n2P1/nn1BP1q1/3BBNb1/b3Qbk1 b - - 0 1 illegal: No proof kernel
K1brB2B/1R1nq3/1pnP1Qb1/k2pQN2/1B6/1n4q1/Bq1P1r2/1RnN1q2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 c5 d5 Bb2 e5 Bc1 Bd6 cxd6 exf4 Kf2 Kd7 e4 Kc6 h4 Kb6 a4 f5 e5 c5 h5 g5 e6 f3 Ke3 g3 e7 f2 e8B f4+ Kd3 b3 h6 g4 h7 c4+ Kd4 c3 Nh3 f3 Bb2 g2 Ba3 g1Q Qc2 g3 Bc4 f1Q+ Nf2 g2 Rh2 b2 Bb4 Nf6 Ba2 Nfd7 Qg6 c2 Na3 b1B Nb5 c1N Qf6 Bg6 Rb1 Rf8 h8B Qe7 a5+ Ka6 Rh7 Nc6+ Kc3 b6 Nd4 Nb3 Nf5 Qfe1 Nd1 f2 Rg7 Kb5 a6 f1Q a7 Rb8 a8Q Qg3+ Kb2 Q1e3 Ka3 g1N Rh7 Qe3e5 Qa5+ Kc4 Ka4 Ne2 Qa8 Qb2 Rg7 Kd3 Kb5 Nec1 Qb7 Rf7 Ka6 Kc4 Rh7 Nd8 Ka7 Kb5 Ba3 Ka5 Qc6 Rb7+ Ka8 Rf8 Qc4 Nc6 Qe4 Rc7 Bf7 Rd8 Be8 Ncb8 Qee6 Rc3 Qee5 Rf3 Rh4 Rf2 Bb4+ Kb5 Rc4 Ka4 Rc7 Nc6 Rb7 Kb5 Bc5 Ka5 Bb4+
R1q5/r2BbRp1/4N3/1b1r1n2/np3KB1/1q1r1BBP/rPnQ2N1/1n2Q2k b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 c5 d4 cxd4 a5 h5 gxh5 Qxa5+ Nd2 Qa4 Nb1 Qa2 Kf2 Ke7 Kf3 Ke6 e4 Ke5 c4 a5 c5 f5 h6 b5 h3 d5 h7 a4 c6 b4 c7 a3 Qb3 d3 Ne2 d4 Nbc3 d2 Ng3 d1R Be3 d3 Nd5 d2 Bc5 Ne7 Nc3 Nd7 Qa4 Ba6 c8B Qb3 Bb6 a2 Bg2 Nc5 Rh2 Ra7 Bh1 Bb5 Rc1 a1N Ne2 Nc2 Qa1 Na4 Rf2 Rg8 Nd4 Rh8 Kg2 f3+ Kg3 f4+ Kg4 Nf5 Nce2 Be7 Ne6 Rd8 h8Q Rd3 Qd8 Qc4 Rf1 f2 Bf3 Qb3 Bd7 Re1 Rb1 d1R Be3 Rd5 Bb6 R1d3 Bc7+ Bd6 Kg5 Red1 Bg4 f3 N2f4 Re1 Ng2 Ree3 Rh1 f1N Rc1 Nd2 Rcf1 f2 Qe1 Nb1 Bf3 Rd2 Kg4 Rc3 Qg5 R2d3 Qgd2 Rc6 Rhg1 Rca6 Bc8 Kf6 e5+ Kg6 Kf4 Be7 Nh4+ Kh6 Rg5 Ra5 Ng2 R5a6 Rh5+ Kg6 Rh8 Ra5 Rh1 f1Q Re8 Qf2 Rf1 Qc5 Bd7 Qcc3 Ra8 Qc6 Ng5 Qa6 e6 Qc8 Bb8 Nb6 Bg4 Ra2 Bc6 Na4 Bb7 Bc5 e7 Kh6 e8B Be7 Bd7 Kg6 Be2 Kh6 Rf3 Kh5 Ne6 Ba6 Ne3 Bb5 Rf2+ Kh4 Bg4 Rd6 Bbf3 R3d5 Ke4 Kg3 Ng2 Kh2 Kf4 Rd3 Rf1 R6d5 Ke4+ Rd6 Bd1 Nfd4 Rf7 Nf5 Ke5 R6d4 Bdf3 Rd5+ Kf4 Rb7 Ba7 Rc7 Bf2 Ra7 Qe5 Kh1 Bg3 Ba6 Qee2 Bb5 Qee1+
1B1R2R1/3P1N1Q/Bq1r4/1n2pB2/bN1BK1Pq/nQ2pnb1/6b1/b2krn2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 f4 Kc5 g4 h5 a4 b5 d6 h3 f5 h2 d7 b3 d4+ Kb4 f6 c5 f7 h4 a5 h3 d5 c4 a6 c3 a7 b2 d6 c2 Nd2 Kc3 Qf3 b1N Qg3 b4 Qf3 b3 Qe2 b2 Ngf3 Na3 Kf4 b1Q Qf2 e3 Nd4 Rh6 Qg2 Nc6 Bd3 Ne5 Ba6 Qbb6 Qd5 Nf3 Qf5 Nf6 Rb1 Ne8 Rd1 h1N Nc6 h2 Nb4 Nc7 Nc4 Ng3 Qh7 h1B Ne5 Nf1 Ke4 Ncb5 Bb2+ Kb3 Rd5 c1B Bd4+ Bb2 Rd1 Rb8 a8B Bg2 Ra1 Bg7 f8B e6 Bc6 Qh4 d8Q Bd7 Nf7 Be5 Qc7 Rf6 Qb7 Bg3 Rb1 Be8 Bd7 e5 Bf5 Rh6 Rc1 Ba1 Rc8 Rf6 Rd8 Rc8 Be7 Rc1 Rc8 Bc6 Rg8 Re1 Bd8 Rg6 Bc7 Be8 Bb8 Rf6 Nc6 Kc2 Nb4+ Kc1 Qc7+ Kd1 Qc4 Nc7 Qa2 Ba4 Qb2 Ncb5 Qb3+ Nc2 d7 Rd6 Rc5 Bf2 Rcc8 Bg3 Qa2 Nca3 Rcd8 Bf2 Qd5 Bg3 Qb3+
8/1Kp2Rn1/Q1Qk4/4n1BP/2B1bPpq/B1bNB1R1/1n3qNr/nb1r2b1 b - - 0 1 illegal: No possible last move
1Qrb1qnB/2p1r3/4B3/3qP3/1Q1Nn2N/qrqP3b/pkR3r1/3KB1BR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Ke7 g4 Nf6 b4 Kd6 e5+ Kd5 g5 Kd4 b6 h5 d3 a5 g6 c3 b7 f3 g7 a4 g8Q h3 b5 a3 b6 h2 Qg5 h4 Bh3 a2 Ba3 f2+ Ke2 f1R Bf5 h3 Qdc1 c2 Bh7 Nbd7 b8B Rf2+ Ke1 Nc5 b7 Be7 Bf5 Ng8 Qcd2 Rh7 Nc3 Qd6 Ba7 f6 Qg6 Bd8 b8B Be6 Rd1 c1Q Qf7 Qa1 Rc1 Qb2 Bg4 f5 Kd1 f4 Qf5 f3 Nce2+ Kd5 Qe1 Qa6 Bb4 Qaa3 Qg6 Bc8 Qb6 Re7 Bd2 Bf5 Bg5 Qbb4 Bf6 Qba5 Ng3 Kd4 Bh8 Rc2 Qe4+ Kc3 Qbb7 f2 Nf3 Q5b4 Nh4 f1Q+ Qe1+ Kb3 Ne2 Bc8 Qb6 Qf8 Rg1 Rc3 Kd2 h1R Bd7 h2 Kd1 Kb2 Bf5 Rb3 Bd7 Qbf4 Qeb4 Qc4 Qb7 Qc3 Q7b5 Na6 Bf2 Nc5 Ba7 Rb8 Rf1 Rg1 Be1 h1Q Bh3 Qa8 Qb7 Rgg7 Rh1 Ne4 Bg1 Rg2 Nd4 Bf5 Qa7 Rc8 Qab8 Qd5 Bg4 Bh7 Bd7 Bf5 Be6 Bh3 Rc2+
4RR1b/p2BKpRq/Qb1P1P1r/1B1qb3/n5Q1/2r5/N1b1NR1q/k4q1n b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 Be3 d5 axb5 dxc4 d5 Na6 Bb6 Nb8 Bd4 exd4 Kd2 Kd7 f4 Kd6 b4 c5 g4 h5 e4 d3 Kc3 d2 f5 Ke5 b6 h3 b5 h2 f6 h4 g5 h3 g6 Bg7 b7 Rh6 b6 Bh8 g7 Nd7 b8R Ne7 g8R Nf5 b7 Nb6 Qh5 d1Q Qf3 Ng3 Qh5+ Bf5 Be2 Qf1 Ra3 Na4+ Kc2 Kd4 Qg4 c3 Kb3 c4+ Kb4 c2 Rf3 c1B e5+ Bf4 e6 c3 e7 c2 e8B c1B B2b5 Be3 Rf8 Bc2 Rf2 Qc7 Rd8 Rc8 b8Q Qe5 d6 Rc3 Qb7 Qd5 Bbd7 Kd3 Ne2 Be5 Rg1 h1Q Rc8 Bc5+ Kb5 h2 Qa6 Qhe4 Rd8 h1Q Rgg2 Qh7 Rg1 Ra3 Nbc3 Qh2 Na2 Nh1 Rc8 Rc3 Rgg2 Qb3+ Kc6+ Kd2 Kc7 Qd5 Kd8 Bb6+ Ke7 Kd1 Bb5 Kd2 Bed7 Kd1 Nb4 Kd2 Rce8 Kd1 Nf4+ Kc1 Ne2+ Kb2 Na2 Ka1 Qe6 Qd4 Rg7 Qd5 Qg4
2Nq2Q1/2k1p2R/1n1bR1P1/1n2P3/r1nNq1q1/b2B4/2RQ1R1p/1KB2nnb b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Bg2 fxg4 Bf1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qb6 Bb2 Qa5 Bc1 Qd8 Kd2 h5 c4 d5 Kc2 Kd7 f4 h4 e4 g2 a4 b3+ Kb2 b4 g6 g3 e5 h3 c5 h2 a5 d3 a6 d2 a7 d4 f5 d3 f6 Bh6 f7 Nf6 f8Q Bb7 Qc2 d1Q Nf3 g1B Bg5 g2 Ra3 d2 Qf7 Ne8 Qc1 Nc7 Qfc4 Nb5 Ka1 b2+ Ka2 Kc6 Qd3 Nd7 Nc3 b1N Nd5 b3+ Ka1 Bf2 Qdc4 b2+ Ka2 Qa4 Nb6 d1Q Qg8 Nd2 Bf4 Qd4 Ra6 b1N Bc4 Qd5 Rf1 g1N Qc3 Bd4 Rf2 Nf1 Bd2 Bhe3 Bc1 Rh4 Qe1 Bb2 Qd2 Qd4 Be2 N1a3 Bc4 Nc2 Kb1 Ba3 Bd3 Qf4 Ra4 Qc4 a8R Bd4 R8a5 Nce3 Ra6 Qd5 Rc4 Bc3 Rf4 Bcb4 Rf7 Qd4 Rh7 Rf4 Ne1 Qg4 Nc2 Ba8 Na4+ Kb7 c6+ Kc8 c7 Bh1 Re6 Bd6 Nb6+ Kb7 Nc8 Nb6 Na7 Qd5 c8R Ra4 Rc6 Qde4 Nd4 Kb8 Rc3 Nec4 Rc2 Kc7 Nc8
1Nrq4/1p1n2N1/p1P2R2/2B1rnq1/P2k1q2/N1r1N2R/2b1Q2q/2n1KBqQ b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 Ke2 c5 Ke1 cxb4 h4 g5 Na3 Bh6 Nb1 fxg4 Bd3 g3 Be2 g4 Bf1 Bg5 hxg5 Kf7 Bb5 Kf8 Bf1 Ke8 f4 Kd7 a4 Kd6 d4 Kd5 g6 e5 g7 h5 c3 e3 f5 b3 f6 h4 f7 e4 f8N g2 Rh3 e2 Rf3 g3 Nd2 b2 Rf4 b1Q Nc4 a6 Ne5 h3 Ngf3 g1Q Ng4 h2 Nd7 h1Q Nfe5 g2 Be3 Qc1 Rf6 Ne7 Nc4 Nf5 Na3 Rh3 g8N Rf3 N8h6 Qhh2 Rb1 Qf4 Rb3 Qgh2 Bf2 g1Q Be3 Nc6 Nb8 Ne5 Bf2 Be6 Be3 Nd7 c4+ Kd6 c5+ Kd5 Bf2 Rc3 c6 Qce3 Qc1 Qg5 Qd2 Qef4 Qe3 Bf7 Qf3 Bg6 Qh1 Rc2 Rh3 Rc3 Nb1 Kc4 d5 Bh7 Ne3+ Kd4 d6 Bg6 Kd2 e1N Na3 Nd3 Ke2 Nc1+ Ke1 Nc5 d7 Bh7 Nf7 Bg6 Nd6 Bh7 Nec4+ e3 Ne8 Bg6 Ng7 Bh7 Bh4 e2 Ne3 Bg6 Kd2 e1R+ Bf2 Qdc7 d8Q+ Nd7 Qe8 Qd8 Rh8 Nh6 Qe7 Bc2 Qe6 Nf5 Rh3 Ne7 Qg4 Nf5 Qe2 Nf8 Nd7 Rc8 Nb8 Nd7 Bg3 Qfh4 Bd6 Q4f4 Bc5+ Ke5 Qf2 Be4 Qfg2 Re2+ Kd1 Bd3 Nd5 Re3 Qe2 Bc2+ Ke1 Re4 Bd6+ Kd4 Ne3 Re5 Bc5+
1RqQ2R1/nkP1B3/1qq1Nn2/r3p1qR/7p/qQ1Bb1bb/N3P3/n2K1R2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 f5 h4 g5 Rh3 b5 Rh2 Ra6 Rh1 Rg6 Bg2 fxg4 Bf1 g3 Nh3 g4 Ng1 Rg5 hxg5 Qb6 Bb2 Qa5 Bc1 Qd8 a4 h5 f4 d5 c4 Kd7 f5 Kc7 f6 h4 g6 b3 c5 b4 f7 b2 g7 b3 a5 d3 a6 d4 c6 g2 a7 g3 a8R Bh3 Nf3 g1Q Nfd2 g2 R1a2 Rh5 R8a3 Nf6 g8R Qc8 Rh8 Ra5 Nc3 b1Q Ra1 b2 Nb3 Qa2 Bd2 b1Q Nc1 Qb6 Rb3 Qa3 Rg8 e5 Bg5 Bb4 f8Q Qe3 Rh8 g1B Bg2 Bc5 Rbb1 Bh2 Qb3 d2+ Kd1 Bg3 Na4 Qf4 Na2 Qf3 Kc2 d1N Rh5 d3+ Kd2 Qff5 Rg1 Ne3 Rbf1 Nc2 Kd1 d2 Be4 Be3 Bd3 Qe4 Nc5 Qg6 Rc1 Na1 Rc4 Qe4 Ra4 Qf3 Qe8 Qfg4 Bh6 Qg5 Bf8 Na6 Rg2 Nb4 Ne6+ Kb8 c7+ Kb7 Rgg1 Nc6 Be7 Na7 Qd8 Rd5 Rf2 Qf5 Bc2 Bh2 Qd6 Nb5 Rg8 Bg3 Ra8 Qg5 Rf1 Na7 Qd8 Rc5 Bd3 Ra5 Qb5 Nb3 Kc2 d1Q+ Kc3 Qe1+ Kc2 Qc3+ Kd1 Na1 Qb3 Qc6 Rb8+
4bRK1/b3N3/n1nRnP2/1Q1pBn2/r1QPnN2/4qQ1B/Q1p2k1n/n6b b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 Rh3 axb4 Rh1 g5 c4 gxh4 Qa4 b5 Qa3 Ra5 Qf3 b3 Qe2 b4 Qd1 Rb5 cxb5 Ba6 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 g4 h5 Kg6 c5 Kf7 d5 f4 e5 a4 b2 f5 h3 b6 b3 a5 h4 b7 c4 d3 c3 g5 e3 a6 e4 g6 c2 a7 e2 a8Q e1N g7 e3 f6 h2 Qa5 e2 Bd2 h3 Qb6+ Bc5 Ra6 Bd7 Bb4 Ke3 d4 Nd3 Ra1 e1N Nc3 b1N Nf3 b2 Ra5 Nf4 Ne4 Nc3 Bd3 b1N Bf1 Na6 b8Q Nd2 Qa8 Ne6 Qb5 Nb3 Ng1 Nf3 Ne2 Ba7 Nd6 Ne4 Nf5+ Kf2 Bd6 Na1 Be5 Ne7 g8Q Nc6 Nf4 Qc8 Rg1 h1N Ne7 h2 Bh3 Nhg3 Qdd3 h1B Qdc4 Qc7 Qg4 Nh2 Ra3 Rh7+ Kg8 Nf5 Rgg3 Be8 Qf3+ Ke1 Rg6 Qa5 Rg7 Qc3 Rf7 Qd2 Rf8 Qe3 Qd1+ Kf2 Qdd3 Nac5 Ra6 Rf7 Rb6 Na6 Qa3 Na5 Rd6 Nc6 Neg6 Rc7 Ne7 Rb7 Qaa2 Rc7 Qab8 Rb7 Qbb3 Rb4 Qbb5 Ra4 Qbd3 Nb3 Qd1 Na1 Qf3+
k2r2rR/3rNn2/3p2qr/1r4p1/RQ1b2nB/1Pn1Q1K1/3P3R/r2NRr1B b - - 0 1 illegal: No possible last move
5b1K/R2rrrNb/Qb2p1R1/rr5B/qR3qpP/3Q2Pr/1n1B4/4RNk1 b - - 0 1 illegal: No proof kernel
n1nBqB2/1rnn2bq/2p1n2R/2nqBr2/RN4B1/2p1N3/1kP1KP2/4Q2Q b - - 0 1 illegal: No proof kernel
1b5n/6qp/1N1Rq1kb/3B3P/2KB2Bn/N2r3p/nQ1Pn1bQ/n1R2bB1 b - - 0 1 illegal: No possible last move
rr1NK2R/q3BB1q/B1pqrq2/4Q3/2P1B1P1/1qR4Q/2Nkbp2/b1r1n3 b - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 g4 dxe4 b5 Nc6 h3 Ne5 g5 Ng4 b6 axb6 hxg4 b5 Rh3 b4 Rh2 Nh6 Rh1 Ng8 Ke2 Kd7 a4 Ke6 d4 Kd5 g6 Kc4 g7 f5 a5 h5 c3 b5 d5 e5 a6 h4 d6 e3 Kf3+ e2 a7 h3 d7 e4+ Kf2 h2 Nf3 c6 Bb2 b3 Ra5 e3+ Kg2 b4 Qd6 Nf6 g8B+ Nd5 Qc5+ Kd3 Qb6 Bg7 Bh7 Ba6 Nd4 f3+ Kh3 f2 Na3 Kd2 Ra4 e1Q Qa5 e2 Bg2 f1Q Qc5 f4 Nac2 f3 Ne6 Qef2 Ra3 Ne3 Qe5 e1R Ba1 Bd3 c4 b2 Rc3 b1R Bb2 b3 Ba3 b2 Be7 Re8 Bg8 Rbc1 Bf7 Qb8 d8Q b1Q Qdd4 Qd6 Nd8 Qb3 Qg3 Q1g1 Qde5 Be2 Kh4 Rh8+ Kg5 Rf8 Nd4 Nc2 Qh3 Bf6+ Kg6 Rh8 N8e6 Rhb8 Nd8 Qh4 Qf4+ Qe3 Qe5 f2 Be4 Qh8 Bg8 Qhh6+ Kf7 Bh8 Ke8 Qhf6 Bf7 Bg7 Rf1 h1Q Rg1 Qh2 Rh1 Bh8 Qf1 Qh7 Qh3 Rg1 Rh2 Ne1 Nc2 Qeb6 Rh1 Rg3 Rh2 Re3 Rh1 Rc8 Rh2 Rab8 a8B Qa7 Bb7 Ra8 Qa5 Rcb8 Ba6 Bg7 Bd3 Re6 Qe5 Bh6 Rh1 Be3 Be4 Bd4 Re3 Ba1 Rc3 Qhh6 Qf3 Qhg7 Rh8 Qh7 Qh3
KR3N2/2k1r2b/2QbQp1N/pn2BB1Q/1R1Qn1b1/1r1n3b/Pb1P2n1/3n4 b - - 0 1 legal: proof: e4 g5 c4 d5 h4 dxe4 f4 gxf4 g4 b5 g5 Qd5 g6 Qg5 hxg5 bxc4 Kf2 Kd8 b4 a5 g7 h5 g6 e5 b5 c5 b6 f3 Ke3 c3 b7 h4 Qe1 c2 Qg3 h3 Qg4 h2 Bb2 c1B Qh5 c4 Nc3 f2 Qd1 Kc7 Qh5 Na6 Nge2 Rb8 Ba3 Bd6 Rg1 h1B Ng3 Rh7 Bd3 f1B Bc5 Bfh3 Rb1 Bcg4 Bd4 Bb2 Na4 c3 Nb6 c2 Nd7 c1N Nf8 Nf6 g8Q Ne2 g7 Nc3 Qh8 B1g2 g8Q Bf1 Bb5 Bd3 Nf5 Bc2 Nh6 Bd3 Kf2 e3+ Kg3 e4+ Be5 e2 Kf4 e1N Bd7 e3 Bf5 e2 Rf1 Bc1 Rb4 Bb2 Ke3 Nfe4 Kd4 Ng2 Rb1 Nd1+ Kd5 e1N Qgg6 Nac5 Qe6 Nc2 Qhf6 Na3 Qg7 Kd8 Kc6 Nb5 Kb6 Bc2 Qgg6 Nd3 Ka6 Nbc3 Ka7 Kc7 Qgf6 Rg7 Qfh4 f6 Qf2 Re8 Qd4 Ree7 Ka8 Nb5 b8Q+ Kc6 Qbe8+ Kc7 Bh7 Rg5 Bg6 Rf5 Bh7 Rf3 Bg6 Nc1 Bh7 Rb3 Bf5 Nd3 Qc6+ Kd8 Qg6 Ng3 Nh7 Nbc3 Qec4 Nde1 Qe6 Bc1 Qdd5 Rb2 Rb7 Rb6 Rb3 Bb2 Qd4 Rb4 Be4 Nb5 Qg5 Bd3 Nf8 Bc2 Bd5 Bh7 Be4 Nd3 Bf5 Ne4 Qh5 Na7 Ra3 Rb3 Ra4 Nb5 Rb6 Ngf4 Rb4 Ng2 Qcd5 Kc7 Rb7+ Kd8 Rb8+ Kc7 Qc6+
2R3q1/1qbbrp2/1N3K2/bqp3BR/N1N5/NQPk2PB/2Qr4/r1nr3q b - - 0 1 legal: proof: e4 g5 b4 d5 f4 gxf4 b5 dxe4 b6 Nd7 g3 Ndf6 h3 Ng4 hxg4 axb6 Bb2 b5 Bc1 b4 Kf2 Kd7 a4 Kc6 d4 Kd5 g5 b5 a5 e5 a6 c5 g6 h5 a7 b3 g7 f3 Ke3 f2 Ba3 b2 Qc1 h4 Be2 f1R Bh5 Kc4 d5 b4 d6 b3 d7 h3 Qd1 h2 Qc1 Ne7 g8Q Rd1 Qg5 Nd5+ Kf2 e3+ Kf3 e2 Ke4 e1R+ Kf5 e4 Qh4 Nb4 Ne2 Nd3 Bg4 e3 Nec3 e2 Na4 Bd6 Bh3+ Bf4 Qg4 Qg8 Qf3 Bc7 Kf6 Rh4 d8N Bd7 Bb4 Rd4 Nb7 Rd2 Qd1 Nc1 Ra3 Re8 a8N Re7 Ra1 R4d3 Na5+ Kd4 Na3 b1Q Qb7 b2 N8b6 Rg1 N5c4 e1B Qe2 Rd1 Qb8 Bc3 Qb7 R3d2 Qbf3 Rge1 Ba5 Bb4 Qb3 Bc3 Qg2 Bb4 c3+ Kd3 Rf1 h1Q Rf5 Qa2 Rg5 b1Q Rh5 Qab2 Qh2 Rg2 Ra2 Qe2 Ra1 Qe4 Ra2 Qb7 Re2 Qb2 Re6 Rgd2 Rc6 Bf4 Rc8 Bc7 Nd5 Qb1 Bb6 Ba5 Qg2 Bb8 Bd8 Bbc7 Ndb6 Rg1 Qa2 Qb5 Qb3 Na2 Qf2 Ra1 Qh2 Nc1 Qf2 Rgd1 Qf5+ Ke2 Qfc2 Re3 Be7 Re5 Bd6 Re4 Bf4 Re7 Qca2 Kd3 Bg5 Rb1 Qab2 Ra1 Q2c2+
BK5b/2n1Np2/5R1q/1QQP2q1/1nrpRn2/3n1PNQ/2b2bq1/1kQbB3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 Bd2 axb4 Bc1 g5 e4 gxh4 Qg4 b5 Na3 d5 Nb1 d3 Qh5 d4 Qd1 Ra7 Nh3 Rd7 Ng1 Rd5 exd5 Qd7 Nc3 Qd6 Nb1 Qd8 Kd2 Kd7 c4 Kd6 a4 Kc5 g4 e5 f3 h5 a5 h3 a6 b3 g5 Kb4 c5 h4 g6 e4 a7 e3+ Ke1 b2 a8Q d2+ Ke2 h2 Kd3 e2 Ke4 e1B Ke5 h3 c6 Nf6 g7 Nh5 g8Q Nf4 c7 Na6 Qh7 Qg5+ Qf5 Bf2 Nc3 b1N Qe1 Kb3 Be2 d1B Ra2 b4 Na4 Na3 Nb6 Nc2 Qc6 Bg7+ Kd6 Rf8 Qb7 Bh8 Bb5 Be6 c8Q Nc7 Qg4 Bf5 Ne2 Bd3 Rf1 h1Q Ng3 h2 Bd2 Qg2 Bc6 h1N Ra6 Kb2 Qh3 b3 Qbb8 Bh7 Ba8 Kb1 Qe3 b2 Re1 Rd8+ Kc6 Nb4+ Kb7 Bc2 Qc3 Ba4 Qc5 Bc2 Re4 Rd6 Be1 Rc6 Ka7 Qh6 Qbb7 Qg5 Kb8 Qh6 Qd6 Rc4 Qc5 Ne2 Qd8 Bg1 Ra5 Kc1 Ka7 b1Q Kb8 Nf2 Nc8 Nfd3 Qbb5 Bf2 Ra6 Kb2 Rc6 Qbc1 Qg5 Kb1 Rf6 Qf4 Ne7 Qf5 Qe3 Qfg5 Qd2 Nef4 Qc1+
7N/pr5q/q3B1n1/1PR1r1n1/3BR1rn/3pq2B/PQnk1b1r/1QNB1K2 b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h3 g5 Qb3 g3 Qb5 g2 Kd2 g4 Ke1 g3 Qb3 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bd6 Bd2 Be7 Bc1 Bf8 e4 Ke7 b4 Ke6 f4 h5 f5+ Ke5 b5 c5 g5 d5 f6 d3 g6 Kd4 f7 d2+ Ke2 h4 e5 h3 g7 c3 e6 c4 e7 h2 e8B c2 Na3 Kc3 Qe1 d4 Nh3 g1R Ng5 g2 Rb1 d3+ Kf2 Qf6+ Nf3 Qa6 Qe3 d1N+ Ke1 Nc6 Qg5 Nf6 g8B Bc5 f8Q Nh7 Qh5 Ne5 Bg5 c1Q Nd4 Ne3+ Qd1 Rb8 Bf6 Ng6 Be6 Rb7 Qg7 Ng5 Rb4 Nc2+ Kf2 Rh7 Be2 Re1 B8d7 g1N Be5 Qd2 Qb1 N1f3 Bf6 Qf4 Bd1 Re5 Kf1 Qe3 Nb3 Nfh4 Nc1 Kd2 Rg1 c3 Re4 h1Q Bc8 Rd5 Bd4 Qh2 Rh1 Qc7 Bh3 Re5 Bce6 Rh6 Qh8 Qh7 Rg1 Ne1 Rgg4 c2 Rgf4 Bb6 Rf8 Bc5 Rc8 Bb6 Rc5 Rh5 Ne2 c1R Qf6 Rc3 Nc1 Nc2 Qf5 Bc7 Rd5 Ng2 Bhg4 Rc4 Bb6 Nd4 Qf2+ Kc3 Rf4 Rh2 Bh3 Re4 Rh4 Ra4 Nc4 Bg3 Nd6 Re5 Nf7 Rc4 Qe2 Bf2 Rf4 N2h4 Nh8 Rcc7 Bc5 Rf7 Re4 Rf4 Qf3 Rg4 Qf6 Nc2 Qg7 Kd2 Qf6 Rf5 Qfb2 Re5 Bd4 Qh6 Rc5 Qh5 Rc4 Qh7 Rc5
5rnB/2rNR3/4Bp1k/1b2QPbp/1Nrn1b1b/3Q4/bNP5/3RnNKn b - - 0 1 legal: proof: d4 g5 a4 b5 d5 bxa4 d6 cxd6 Nc3 d5 Nb1 d4 h4 gxh4 e4 d5 Bd2 d3 Bf4 d4 Bc1 Qd5 exd5 Bh6 Qd2 Bg7 Qd1 Bf8 f4 a5 Kf2 e5 g4 h5 b4 e4 f5 h3 g5 e3+ Kg3 e2 Kh2 e1N b5 d2 d6 a3 g6 a2 b6 d3 g7 a4 b7 a3 Be2 Be7 Bb2 Bh4 Bg4 Nc6 b8Q Rh7 Qb4 Nd4 Qf3 d1B Nc3 d2 Nge2 Be6 Ng3 Be2 Na4 d1R Qc5 Bb5 Kg1 Bb3 Rb1 a1B Nf1 a2 Qd3 Bg5 Be2 h2+ Kf2 Rd2 Rd1 Rc8 Qcc3 Rc4 d7+ Ke7 d8N Kf6 Rg1 Bh4+ Rg3 h1N+ Kg1 Rh8 Re3 Kg5 Re8 Kh6 Re7 Rc7 Bf3 Rf2 Bd5 Rf4 Nc6 B3c4 Bc1 Bb2 Nb4 a1B Be6 Ba2 Bd2 Bc1 Nb2 Bg5 Qc5 Re4 Bc3 Bcf4 Na4 Bb2 Qe5 Bbc1 Bb2 Bh4 Ba1 Bfg5 Nb2 Bcf4 Qc5 Nf6 Qe5 Rf8 g8N+ Kg7 Nh6 Kh7 Ng4 Ng8 Nf6+ Kh6 Qd6 Nb3 Nd7 Rec4 Na4 Nd4 Bb2 Nc6 Bh8 f6 Nb2 Nd4 Qe5
1b2bNn1/brnk2K1/Bpn2n2/2Q2R1p/1R3n1B/1PQ3BB/n2PNq2/5b2 b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 d5 a4 dxc4 a5 g5 a6 gxh4 Rh3 b6 Rha3 Nd7 Rg3 Rb8 Rh3 Rb7 axb7 a5 Rh1 Nb8 Kf2 f5 Kf3 c5 e4 h5 g4 c3 e5 h3 g5 c4 b3 h2 e6 c2 g6 a4 g7 a3 e7 a2 Bd3 c3 Be4 Nc6 b8B Kd7 Ne2 Rh7 Ba3 c1N Qg1 c2 Nec3 Ne2 Qg5 c1N Rf1 h1N Rg1 Nhg3 Bd3 Ne4 Ba6 Nef6 Nd5 Qe8 Be5 Qf7 Nbc3 Bb7 Rb1 a1B Rg4 Na2 Nc7 Bc8 Ne6 Bb2 Kf2 f3 Ke3 f2 Rf1 Nf4 Ne2 Ba1 Bc7 Be5 Bd8 Bb8 Bd6 Bb7 B6c7 Ba7 e8Q+ Kc8 Be5 Bd6 Nf8 Bdb8 Qe7 Na5 Qb4 Nc6 Rb1 f1B Qc3 Nh3 Rb4 f4+ Kd3 f3 Bg3 f2 Qgc5 Nf4+ Ke3 Nd7 Bg5 Ndf6 B5h4 Kd8 Kf3 Bc8 Rc1 Bd7 Rc2 Be8 Ke3 Nge7 g8B Rg7 Bh7 Neg8 Bf5 Kc7 Bh3 Kd8 Ne6+ Kd7 Rc1 Rh7 Nf8+ Kc7 Bf5 Qg7 Qb2 Ng4+ Ke4 Qd4+ Kf3 Rf7 Rcc4 Bh3 Qa5 f1N Qc3 Qf2+ Ke4 Nfe3 Rc5 Nd5 Be6 Rh7 Kf5 N4f6+ Kg5 Bf1 Bh3 Kd6 Rcb5 Rb7 Rc5 Nde7 Rf5 Ned5 Qb5 Nc7 Qa5 Nge7 Kh6 Neg8+ Kg7 Ke7 Qac5+ Kd8 Ng6 Kd7 Nf8+
1r1Qq1QQ/5b2/1r2Qpp1/nP3N1b/q1P5/3KB3/nqBN1bRp/kr5R b - - 0 1 illegal: No proof kernel
1Kb1QR2/4Q2B/NPBr1P1B/1qn5/N1npbRp1/4B2p/2qb1n1k/3r3q b - - 0 1 illegal: No proof kernel
k2Q4/1n2nr1P/2bNK2b/1qqPpN2/pbQ5/1rRB1NRN/1B3p2/1r5n b - - 0 1 illegal: No proof kernel
rQ1b3K/1rb3pN/3P3B/n1N1N2Q/3pbn1N/PB2R1R1/pqq5/4qkr1 b - - 0 1 illegal: No proof kernel
2qQ4/B2QPB1p/1K5p/2B1r2R/NP1r3B/1n2qNpR/bn2bb1n/q2k4 b - - 0 1 illegal: No proof kernel
Rnr1qnQQ/k2PQR1q/3N1b1n/1r1pq1b1/4Np2/1B3P2/4p2Q/B3b1K1 b - - 0 1 illegal: No possible last move, all moves rejected
7R/1QP3K1/R4p1N/b1p2bnq/1NnbN3/1r1NB3/Bp2nr1P/r1q2Q1k b - - 0 1 illegal: No proof kernel
1N1Q2BQ/pKn4B/1bB2r2/P2q4/RR2p2P/N2r2nB/3nr2p/q1kbb3 b - - 0 1 illegal: No proof kernel
2NB2N1/pqkQ4/b2b1Qp1/3R2q1/2BRr2Q/2Pn4/Qbpr1Pn1/1q3nK1 b - - 0 1 illegal: No possible last move
K1Q1R3/p1p1B1q1/1N1r4/P2P1nRq/2R2q1k/RrpN3n/3n4/B1Q1r1bb b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 e4 d5 f5 dxe4 Bh3 g6 fxg6 Kd7 g5+ Ke8 Bg4 hxg4 Ke2 e5 Ke3 Ke7 a4 f5 d4 g3 h4 g2 b4 Bb7 g7 Qd7 g6 Kf6 b5 Ne7 g8Q Na6 a5 Rh6 h5 Kg5 b6 Rb8 g7 Rd6 h6 Nc5 h7 Nb3 h8B Nd2 Nh3+ Kh4 Ba3 g1N Nf2+ Nh3 Nc3 Bc6 b7 f4+ Ke2 f3+ Ke3 Qe8 Qc1 Qh5 Nd3 f2 Na4 f1Q Nb6 Qg2 Qe6 Bd5 g8R Qg7 Qc8 c3 Bb2 Bc6 Ra3 Bd5 Rf1 Bc6 Rf3 Bd5 Ba1 Nf5+ Ke2 Be7 Re8 e3 Rg8 Qf6 Rg5 e4 Bg7 Qe5 Bf6 Bf8 Be7 Qf4 Kd1 e2+ Kc2 e1Q Rfg3 Ra8 b8R e3 Rg1 Bh1 d5 e2 Rf1 Nb1 Kb3 Qeg3 Rf3 e1R Rf2 Qe5 Kb4 Nd2 Kc5 Qg7 Rf4+ Qgg4 Rc4 Qf4 Bd8 Be7 Kb5 Bf6 Ka6 Bd4 Kb7 Bg1 Be7 Qhf7 Qd7 Qh5 Rg8 Rf8 Qc8 Rff6 Re8 Rfe6 Rc6 R6e4 Rc5 Rb4 Rc4 Rb3 Ka8
5rBn/1n4Q1/qn3NP1/r3k1QK/1n2pN1n/pBbRP3/2p2r2/1BB1R1b1 b - - 0 1 illegal: No proof kernel
4bNKN/3R2b1/2P1n1qQ/r2BR1nn/RP1Rp1pn/3Qp3/1r3Bk1/4n2r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Ke2 Kf7 c4 Kg6 f4 Kh5 b4 Kh4 b6 e5 b7 d5 h3 Kg3 f5 a5 h4 g5 h5 d3+ Ke3 a4 h6 d2 h7 d4+ Ke2 d3+ Ke3 a3 f6 a2 f7 Nf6 c5 Nh5 c6 Qe8 Nc3 Nd7 b8R Nc5 Na4 Bd7 Nf3 Ne6 Nb6 Bg7 f8R Qg6 Rbe8 Ra5 Rf4 Rf8 Be2 Kg2 h8Q g3 Qh6 g4 Ng5 Rf5 Re7 Be8 Rd7 Rf6 Qc2 d1R Re1 d2 Nf7 Rf5 Bc4 Rf6 Rb1 a1N Bd5 Rf5 Qd3 Nc2+ Ke2 Ra2 Nh8 Rb2 Ra1 Rg5 Ra4 Rf5 Rh1 Rg5 Rh3 Rh1 Rh4 d1N Be3 Rf5 Bf2 Nde3 Kd2 Rg5 Kc3 Nf5 Kc4 Ne1 Rh3 Nh4 Rf5 Nef3 Rf4 e3 Rd4 Nf8 Kc5 Ne6+ Kd6 e4 Ke7 Ne1 Nc4 Qf5 Ne5 Qh7 Neg6 Rf5 Ba2 Ra5 Nf8 Qg6 Rh2+ Kf3 Bb3 g2 Bd5 g1N Rh3+ Kg2 Rf3 Nc7 Rf5 Ngf3 Re5 Ng5 Ne6 Bf6+ Kf8 Bg7+ Kg8 Ng3 Qc2 Nh5 Nf8 Nce6 Qd3
1q3NNb/kRR1nKp1/b2P2B1/1brp3n/1n5P/1RBQ1p2/Qn3R2/2r1n3 b - - 0 1 illegal: Other
2QBQn1R/1p6/r2n1RB1/1P1pK1pN/n4P2/q1n4b/Nb3n1k/1Bb1B2r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 hxg4 d4 c5 b5 cxd4 Qd2 Nc6 Qc3 Nb8 Qb4 axb4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 c4 e5 a4 g3 f4 b3 h4 b2 a5 g2 h5 d3 a6 d2 h6 d1N c5 Nf2+ Kd5 e4 h7 e3 a7 e2 c6 e1N c7 Qe7 Nc3 b1N Na2 Qa3 Bd3 Bg7 Ne2 g1B Bd2 Nh6 Ng3 Nf7 Rh2 Nd6 Nh5+ Ke7 Rh4 Bb2 f6+ Kf7 Ba5 Nc3+ Ke5 Bc1 Bb1 Ned3+ Kd4 Ke6 f7 Kf5 f8B Bb2 Be7 Bc1 Rh2 Kg4 Bd8 Nc5 Ke5 N5a4 Rh1 Kf3 Rh4 Kg2 Bg6 Rf8 h8Q Rf7 Qe8 Rh7 Rg4+ Kh2 Rh4+ Nh3 Bb4 Bge3 Ba5 Bb2 Rd1 Bec1 Bb1 Nde4 Rd6 Rh8 Re6 d5 Rf6 Nd6 Bg6 Bf5 c8B Bg4 Bcf5 Nd7+ Kd4 Rh6 Bb1 Nf8 Ke5 Bc8 Bab6 Bd7 Bf2 Bf5 Be1 Rh8 Rg4 Nf2 Rg3 Bh3 Rf3 Rc8 a8Q Rc6 Qc8 Ra6 Ng7 Rh4 Nh5 Rg4 Re3 Rg1 Re4 Rh1 Rc4 Bf1 Rc7 Bg2 Rh7 Bh3 Rh8
2r5/npP2RBK/4NbRN/rB2rP2/p4q2/rN1Np1Qb/n1r5/b2k1Q2 b - - 0 1 illegal: No proof kernel
RKQ2Br1/pN4q1/6Bk/Rbr2N1b/QpQp2Q1/4r2P/1P5r/2nrnb2 b - - 0 1 legal: proof: f4 h5 d4 e5 d5 exf4 d6 cxd6 Nh3 d5 Ng1 d4 g4 hxg4 a4 b5 a5 Ba3 Nc3 Bc5 Nb1 Bb6 axb6 Rh6 Nd2 Rh7 Nb1 Rh8 Kd2 d3 Kc3 Kf8 Kb4 f5 Ka5 g5 e4 Kg7 c4 d5 c5 d2 c6 f3 e5 g3 c7 g2 b7 g4 e6 f2 e7 g3 e8Q b4 Ba6 d4 Bc4 f4 Nh3 g1R Qc6 f1B Qb5 g2 Bd3 Ne7 Bc4 Na6 b8Q Bg4 Bf7 Nd5 Nc3 Qd7 Qe8 Ne3 Ne2 Rc8 Nf2 Nc5 Nd3 Nb3+ Ka6 Nc2 Kb7 Ne1 Ng3 Rh4 Qf3 d1R Nc5 Bd3 Be3 Nc1 Ra5 Rf1 Qbc6 g1R Nf5+ Kh7 Qg2 f3 Bh6 f2 Qce6 Qe7 Qa4 Bb5 Qc4 Rh3 Bg7 Re3 Qf3 Rg2 Rg1 Qf8 h3 Rh2 Rg2 Rg1 Bh6 Bh5 Rg8 Rg6 Qg4 Qe7 Rf8 Rg8 Bg6+ Kh8 Re8 f1B Bf8 Qg7 Qab3 Rd8 Qa4 Rd5 Ra8 Rde5 Kc8 Rd5 Nb7 Rc5 Bf7 Kh7 Kb8 Re8+ c8Q Re3 Nfd6 Kh6 Be8 Rg3 Bg6 Re3 Nf5+
r7/3rN2B/5PKp/RNnqR3/QB3p2/1nb1nPNQ/p1kN1b1b/1br5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 h6 f4 Kd2 Qa5+ Ke2 Qf5 exf5 gxh6 Kd2 h5 Ke1 h4 Kd2 Kf7 Kd3 Kf6 Ke4 a5 g4 e5 b4 d5+ Kd3 e4+ Ke2 Ke5 c4 d3+ Kd2 Kd4 g5 e3+ Ke1 a3 g6 a4 f3 h6 g7 e2 Kf2 e1B+ Kg2 d2 Kh3 a2 Kg4 a3 Kh5 h3 f6 h2 b5 Na6 c5 Rh7 c6 Bc5 b6 Bf5 c7 Bf2 c8Q Ne7 g8N Nc6 b7 Rd7 b8N Na5 Bd3 Nb3 Qc2 d1N Qc6 Ne3 Qe6 Bb6 Bd2 Nac5 Bb4 Bg3 Nd2 Be4 Rc1 a1B Qd1 a2 Na6 Bc3 Qh3 Bf5 Bb1 Bh7 Rc2 Kd3 Ne2 d4 Re1 h1R Nc7 Bh2 Nb5 Ba7 Ng3 Bf5 Re2 Bb6 Qe1 Rf1 Qf2 Rc1 Ne7 Ne4 Qg1 Nd5 Qe1 Na1 Bc5 Bca5 Ndf1 Bh7 Qb4 Nb3 Qa4 Be1 Na7 Bba5 Nec8 Bf2 Rcd2+ Kc3 Bd6 d3 Ne7 Bf5 Rd1 d2 Rde1 d1Q Bc2 Qd4 Nd2 Kb2 Bb1 Bc3 Bb4 Ng5 Re6 Ne4 Ra6 Nec5 Re5 Ne3 Ra5 Qd5 Nb5 Be4 Bd3 Bh7 Bf1 Bb1 Bd3 Qd6 Bh7 Qd5 Nef5 Kc2 Kg6 Re8 Ne7 Rc8 Ra7 Ra8 Ra5
1N2b1bK/1r6/1pnb3N/p1br1Pq1/1nPB3Q/4rQ1n/3p2RN/N1R2B1k b - - 0 1 illegal: No proof kernel
n3BB1B/B4bK1/p1R1P1n1/1N2p1PQ/3b2qk/r1r2n1n/2QR1prb/4N3 b - - 0 1 illegal: No possible last move, all moves rejected
1K3QBq/4PpN1/5pnb/2rb2Br/1Q1p4/n2nPk2/Q1R2b1Q/1r1N1R1n b - - 0 1 illegal: No proof kernel
1R3nb1/3p1Q1p/k4p2/bQr3RP/2n2NQB/r3qbrQ/BN1P4/3rnK2 b - - 0 1 legal: proof: a4 c6 b4 Qb6 b5 Qd8 Ra3 f6 Rf3 e6 Rf5 exf5 f4 g5 a5 Bg7 e3 Bf8 fxg5 Kf7 b6 Ke8 a6 bxa6 Bb5 cxb5 h4 a5 c4 b4 g4 f4 g6 b3 g7 b2 e4 a4 g5 a5 g6 a3 c5 a2 c6 a1R h5 f3 e5 f2+ Kf1 a4 e6 a3 c7 a2 b7 Qe7 Nh3 Ra5 Rh2 Rc5 Qf3 Nc6 b8Q Na5 Rh1 Nc4 Kg2 f1R Nf4 Rd1 Na3 b1B Qb5 Bb7 Rg1 Bc2 Kf2 Bb3 Bb2 Bd5 Qh3 Bf3 c8B Kd8 Ba6 Kc7 Bd4 Qe8 Rg5 Ne7 Bb7 Kb8 g8R Ka7 g7 Ng6 Bd5 Bd6 e7 Bc7 Be5 Nf8 Bd6 Ba5 Bc7 Qb8 e8Q Qb6 Qf7 Qe6 Ne2 Qe8 Bg3 Qe4 Nf4 Qe5 Qb8+ Ka6 Bh4 Qc3 Nc2 Qe5 Ne1 Qe3+ Kf1 Ng6 Rc8 Nf8 Qb4 Rg8 Qa4 Rac1 Rb8 a1N Qb4 Nc2 Qa4 Ra1 Be6 Rh8 g8Q Ra3 Qgg6 Rg8 Qgf5 Rg6 Qfg4 Ba2 Qb4 Ra1 Qb1 Rg7 Ned3 Ne1 Qb4 Rd1 Nb2 Nb6 Ne2 Bad5 Nf4 Nc4 Bf5 Rg8 Bb1 Be6 Ba2 Rg6 Qg7 Bg8 Qb5+ Ka7 Qgg3 Bb6 Qf7 Ba5 Rd5 Rg7 Qg5 Rg6 Qgf5 Rg2 Qfg4 Rg3 Qa4 Ka6 Rg5 Rc7 Qb3 Rc5 Qb5+
QN5q/n1n3k1/1KB5/pp1N1PR1/r1b3P1/5R1Q/3brBp1/nQq1Q1nn b - - 0 1 illegal: No proof kernel
1q4bB/2Bn1qp1/2kb2b1/Q1b1N1r1/3rB2N/4RPpb/p1R2P2/n1QB2K1 b - - 0 1 illegal: No possible last move
2bK1b1R/Q2NP3/QP1prp2/q2nr3/1r1nr1p1/3B1Rq1/2NB1R2/3k1R1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Kd6 b4 Ke5 c4 a5 h4 g5 c5 d6 b6 f6 c6 a4 b5 f3 Kg3 f2 b7 d3 b6 Kd4 h5 a3 h6 a2 h7 d2 e5 Ke3 e6 Ra4 c7 Re4 Nf3 Nc6 b8Q Nge7 Qa4 Nd4 Ne5 Nd5 Bd3 f1R e7 Rf5 Nd7 Rfe5 Na3 Re6 Rb1 a1R Rb3 Rb1 Rf1 Rg8 Rc3 Rb4 h8R Qe8 Rb3 Qh5 Qba7 Rg6 Q4a6 Rh6 Bb2 d1R Nc2+ Kd2 Bc3+ Kc1 Ra3 Rde1 Bd2+ Kd1 Rb3 Qe8 Rc3 Rh1 Rh2 Qg6 Rhf2 Qf5 Rb3 Ne3 Ra3 Qa5 Rc3 Nd5 Rb3 Bb7 c8R R4e5 Rd8 Bc8 Ra3 Bg7 Rh8 Bf8 Kg2 g3 Rc3 Nb3 Kf3 Nd4+ Kg4 g2 Rb3 Rg1 Kh5 g4+ Kg6 Rh1 Kf7 g1Q Ke8 Qg3 Kd8 Re4 Bb5 R4e5 Rbf3 Re4 Bd3 R4e5 Rf5 Re4 R2f3 R4e5 R1f2 R1e4 Rf1+ Qe1 R3f4 Rh2 Rh1 Qg1 Rf2 Rh4 R5f3 Rhh5 Ne1 Qg3 Rhf1 Rh1 Nc2+
N3R2B/n1B1b3/5q2/n2q1r2/Q3p1P1/2NQP2Q/2bp1knp/KQbnRr2 b - - 0 1 legal: proof: h4 f5 b4 a5 bxa5 c5 d4 cxd4 h5 f4 h6 f3 e3 gxh6 Bc4 h5 Be2 fxe2 Kd2 h4 a4 Kf7 c4 Ke6 Kc2 Ke5 Kb2 Ke4 g4 e1B f4 h5 c5 b5 f5 e5 f6 d5 c6 b4 a6 b3 a5 d3 c7 h3 f7 d2 a7 d4 a6 h2 Na3 h4 Nb1 d3 Nf3 h3 Ra5 Be7 f8B Nc6 Nd4 Nh6 Rf1 h1Q Rf7 h2 Rf1 Nf5 Rg1 Rh5 Qc2 d1N+ Ka1 Nh4 Bb2 Rf5 Nb5 Kf3 N1c3 Ng2 Qb1 Bd2 Re1 Kf2 Ra4 Rb8 a8Q Na5 a7 Bc1 Re4 d2 Qd5 Qf1 Qd4 Qd5 a8Q Bd7 Bg7 Rbf8 c8Q Bc6 Nc7 Ba4 Qdd3 R8f7 Rc4 e4 Bh8 Rf8 Ba3 R8f6 Bd6 b2+ Ka2 Rf7 Qa7 Rf8 Na8 Bc2 Bc7 R8f7 Qe8 Rf8 Qh5 R8f6 Qa1 b1N Qh3 Na3 Qb1 Nb5 Ka1 Rf7 Qad4 Na7 Rc6 Rf8 Re6 R8f6 Qa4 Rf7 Qdd4 Qa6 Re5 Qf6 Qd3 Bb4 Na2 Rh5 Qda3 Qa6 Rf1+ Ke2 Re8 Be7 Qbb2 Rf2 Qac3 Rhf5 Qb1 Qf6 Rh1 Nb2 Rd1 Rf1 Qd3+ Kf2 Re1 Nd1+ Nc3
4Rqr1/bq1B3b/N1N2Rq1/1n4PB/2Ppnp2/p2qkr1Q/4B2K/1Q1nB3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kf2 Ke7 e4 Kd6 b4 Ke5 g4 h5 Kg2 a5 c4 f5 b5 d5 g6 f3+ Kh3 f4 g7 a3 b6 h4 b7 f2 Qf3 a4 Bd3 f1Q+ Kh2 h3 g5 a2 Be2 a3 Qb3 d3 Qd1 Kd4 e5 d2 e6 Na6 b8Q Bc5 e7 Qf8 e8B Bf5 B8h5 Ke3 Qc8 d4 Nf3 Ba7 Ne5 Nc7 Nc6 Nf6 g8B Ne4 Be6 Bh7 Nc3 Nb5 Na4 Rb8 Nc5 Rg8 Rb1 a1Q Bd7 Rb7 Rb4 Qb1 Na6 Rb8 Bb2 Qd3 Qa1 Qfb1 Bc3 d1N Be1 Qbc2 Qb1 Rb7 Kg1 h2+ Kg2 Nc7 Ra4 Rb3 Ra5 Rc3 Rf5 Nb5 Rf6 Rb3 Rg1 h1Q+ Kf1 Qh4 Kg2 Qg4+ Kh2 Qe6 Bde8 Qef7 Qg4 Qb7 Bd7 Ng3 Rh1 Qg6 Qh3 Qcd3 Bef3 Ne4 Rg1 Rb2+ Rg2 Rf2 Be2+ Rf3 Rf2 Nc5 Bf1 Ke4 Rb2 Nd6 Rb5 Ke3 Be2 Nce4 Re5 Nb5 Re8
q1q2kB1/BRr4b/1b1b1Q2/ppP5/pB1n4/3Qr1P1/8/NBKbnNqR b - - 0 1 illegal: No proof kernel
3N3K/b2QR3/1nr1p3/2rr1P1p/2QN3P/kBB1n1q1/QbQ1r2p/qR2q3 b - - 0 1 illegal: No possible last move
2R3K1/b2n4/1N2p1bR/p2q2Pn/2Bk4/rrn2np1/N1Q1Q1Pq/3rBNN1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 e6 g4 Bh6 Qa5+ Bd2 Qg5 hxg5 fxe6 Bf4 e5 Bc1 e4 Kd2 Kf7 f4 Ke6 c4 d5 b4 h5 b5 g3 b6 a3 c5 e3+ Kd3 h4 c6 h3 f5+ Ke5 f6 a2 c7 h2 f7 e2 b7 e1N+ Ke2 d3+ Ke3 d2 Bb5 d4+ Ke2 d3+ Ke3 Nf6 Qe2 d1R Nd2 Nf3 Nf1 d2 Bc4 Nbd7 b8N Nh5 Na6 e6 Rb1 a1Q Nb4 Bb7 c8Q Be4 Na2 Bg6 Rb8 Qb2 Qc6 Qb5 Rc8 Qd5 Qc5 Bd6 f8N Bb8 Ba3 Rh7 Bb4 Rf7 Qc6 a5 Qa4 Ra6 Qc2 Rb6 Nh7 Ba7 Nf6 Qc6 Nd5 Rf4 Nc7 Qd5 Na8 Rd4 Bc3 Rb3 Nb6 Kd6 Ba6 Ra4 Bb5 Raa3 Bc4 Ng7 Kf4 Nh5+ Kg4 Ne1 Rh8 Kc5 Bb4+ Kd4 Rc8 Rc1 Kh4 d1N Kg4 Nf3 Be1 Ng7 Kf4 Nc3 Kg4 Rd1 Kf4 Bd3 Kg4 Nf5 Kh5 Ng7+ Kh6 Nh5 Rd8 Bg6 Rc8 Bf7 Kh7 Bg6+ Kg8 Ng7 Kh8 Nb8 Nh3 Nd7 Rg1 h1Q Kg8 Qh2 Rh1 Qg1 Rh2 Qh1 Nf4 Qg1 Rh6 Qh2 Nh3 Nh5 Ng1
1B1Nr1R1/N5Nn/2p1P2n/1bq1br2/2PQN1p1/1q2Q3/1Rqpn1Kn/1k2B3 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Bg2 exd4 Bh6 f5 Be3 f4 Bd2 f3 Bc1 fxg2 e4 Kf7 c4 Kf6 f4 a5 Kf2 g5 b4 d5 h4 d3 b6 d4 e5+ Kf5 h5 Ke4 b7 a4 b5 c6 e6 a3 b6 a2 f5 d2 f6 Kd3 h6 g3+ Kf3 Bg7 h7 Nd7 b8N Ba6 b7 Bb5 f7 Ra5 f8Q Qb6 Nh3 g1N+ Kg2 g4 Na3 Nh6 Na6 Ne2 b8B Nf6 Ng5 Qc5 Nc7 Rg8 h8N Nh7 Qf4 Re8 Rh3 Be5 Nhf7 Kc3 Qe1 d3 Nd8 Kb3 Qd4 d1Q Be3 d2 Bf2 Qc1 Ne4 Qc2 Qe3+ Kb2 Qg1 Qb3 Be1 Qc2 Rh5 Qb3 Rg5 Qc2 Rd1 a1Q Rg8 Qa2 Ra1 Qab3 Ra2+ Kc1 Kf1 g2+ Kf2 Ba6 Nab5 Kb1 Na7 Bb5 Qd4 Ng3 Qe3 Nf1 Qd4 Nh2 Qe3 Bh8 Kg3 Bg7 Qf2 g1N Kg2 Be5 Qd4 Re7 Ne8 Ne2 Ng7 Re8 Qf3 Ra6 Qfe3 Rb6 Nh5 Rb7 Ng7 Rf7 Ra6 Rf1 Ra2 Rf5 Rb2+
3n1Nn1/q1bkBN2/1pb1P2r/5Q1B/3Bq1Qb/B3P2p/np2rb2/R2R1K2 b - - 0 1 illegal: No possible last move
bN1b4/Q4R2/p2b1rnn/r4p1p/P7/1N2qQ1q/1BP3rb/N1RKNBk1 b - - 0 1 legal: proof: f4 d5 b4 g5 e4 dxe4 h4 c5 bxc5 Qd6 h5 gxf4 h6 Qxh6 Qg4 Qh3 Qd1 Qh2 d4 Kd7 g4 Ke6 a4 Kd5 c6 e5 g5 b5 g6 h5 c7 b4 g7 f3 Bb2 e3 Be2 Ke4 d5 b3 d6 f2+ Kf1 Nh6 g8Q Bb7 c8N Nd7 Nf3 Qh3+ Qg2 Rg8 Bc3 b2 Na3 b1Q Rh2 Qb6 Bc4 f6 Ke2 f1R Qf2 Rg2 Nb1 Be7 Bf7 Bd8 Bd4 Nf8 d7 Ng6 Ne7 Kf4 Nbd2 e4 Bc4 Bd5 Qe1 Bc6 Kd1 e2+ Kc1 e3 Qd1 e1B Nf5 e2 Nb3 Bb4 Bb2 e1B N5d4 Bec3 Ne1+ Bf3 Qde2 Bd6 Kd1 Bd2 Qe3+ Kg3 Rc1 Rff2 Qe7 B2f4 Na1 Bd5 Ndb3 Qe3 Qf7 Rf1 Qg4+ Kf2 Qf3+ Kg1 Qh7 Rff2 Bf1 Bfe5 Qg4 Rf5 Qf3 a6 Qg7 Rc8 Qh7 Rc5 Qe7 Ra5 Qh7 Re2 Rf2 Ba8 Qe7 Bh2 Qg7 B8c7 d8N Rf4 Nc6 Bd8 Nb8 Rff5 Qd5 Rf4 Rf3 Rg2 Qa7 f5 Rg3 Rc4 Qf3 Rc7 Rg4 Rf7 Re4 Rf8 Re7 Rf6 Rf7
r7/2K1n3/p1B1NQP1/5p1p/1R2B1bN/nrB2Pkb/1q1Q2b1/R1q1nb1B b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 Rh3 c5 Rh1 cxb4 a3 gxh4 Bb2 b5 Nc3 b3 Bc1 b4 Nb1 b2 Qd3 b3 Qd1 Bb4+ axb4 Qc7 Bf4 Qb6 Bc1 Qd8 Kd2 Ke7 Kd3 Kf6 Ke4 h5 Kd5 Kf5 Kd6 Kg4 c4 f5 b5 d3 c5 d2 e4+ Kf4 g4 a6 c6 h3 c7 h2 e5 Ne7 b6 Bb7 c8B Bg2 e6 Nbc6 g5 Bh3 g6 Nd4 b7 Nf3 b8Q Ne1 Bb7 Qc8 Nc3 b1Q Na4 b2 Nf3 Qa2 Qa7 b1N Be4 Na3 Qb6 Qb2 Nh4 Rf8 Rg1 h1B Nc5 B1g2 Bc4 Rd8 Bcd5 Rb8 Qc6 Rb3 Rb1 Bf1 Bh1 Bfg2 Be4 Rh8 Qc2 Kg4 Rf1 d1B Bd2 Be2 Bc3 Re8 Rg1 Bf1 Qd2 Rd8 Nd3 Re8 Nf4 Rh8 Qb6 Qc4 Qc6 Ra8 Kc7 d5 Ra1 d4 Rb1 Nc8 e7 d3 e8B Ne7 Ne6 Qc5 Ra1 Qe3 Qd6 Qh6 B8c6 Qg5 Qc1 d2 Qc2 d1B Qcd2 Nac2 Ra4 Na3 Rb4 Bde2 Nd8 Qe3 Qe6 Kf4 Qf6 Beg4 f3 Kg3 Ne6 Qh6 Qd5 Qhc1 Qd2 Bd3 Rf1 Be2 Rg1 Bf1 Qe2 Qe3 Kb7 Nec2 Qd2 Bd3 Ra1 Bdf1 Kc7 Ne1 Qdd4 Qec1 Qd2
Nn1qQ1R1/3q4/pB1pNn2/bk1qprP1/3R4/2B1nR1b/P2n3Q/K2Rr3 b - - 0 1 legal: proof: e4 c5 d4 g5 b4 e6 h4 gxh4 bxc5 Ke7 Bc4 e5 Be6 exd4 e5 Bg7 Bg4 Bf8 e6 Kf6 e7 Kg6 Be6 fxe6 Qd3+ Kg7 Qd1 Kf7 Kd2 Ke8 g4 b5 c4 h5 Kc2 e5 Kb2 a6 f4 b4 f5 b3 g5 d3 c6 h3 c5 h2 f6 h4 c7 h3 c6 d2 Ne2 Nh6 Qg1 Ng4 Na3 d1N+ Kb1 b2 Nc4 Nde3 Nf4 Rh5 Bd2 Rh4 Qg2 d6 Rd1 h1Q Ne6 h2 Bc3 Qd7 Qe2 Qd5 Nb6 h1Q Qh2 Qa5 Rf1 Qhd5 Rf3 Ra7 Na8 Rb7 Qg3 Rh2 Qf4 Rf2 Qh2 Rb4 Rg3 Rf5 Rf3 Bb7 c8R+ Qad8 Rc7 Bc8 Rb7 Re4 c7 Nd1 Rb3 Re1 Rb4 Bg7 Rd4 Bf8 Kc2 b1N Kc1 Nde3+ Kb2 Nd2 Rd1 Q7c6 f7+ Kd7 e8R Nf6 Ka1 Be7 f8B Qa4 Bg7 Kc6 Rg8 Kb5 Bh8 Qd7 Bg7 Bd8 Bf8 Qe8 Be7 Bd7 c8Q Ba5 Bd8 Qf8 Bb6 Qd8 Rd3 Qg4 Rd4 Qh3 Qc7 Bc8 Qe7 Qh7 Qe8+ Qhd7 Nf4 Bb7 Nh3 Qf7 Rff4 Bg2 Rf3 Qd5 Nf4 Bh3 Ne6
r2B1R2/r4bnp/4N3/3Bnrp1/Pp1Q1qq1/RK4b1/2BrN1P1/B1b2kQ1 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 h4 axb4 h5 Qd6 h6 Qxh6 Nh3 Qh5 Ng1 Qh2 e4 Kd7 a4 Kd6 d4 b5 Kd2 f5 Kc2 g5 Ne2 c5 Ra2 c4 Ra1 b3+ Kb2 f3 Qd2 f2 Qd1 c3+ Ka3 b2 Bd2 c2 Nbc3 b1R Ng3 c1B+ Ka2 f4 Be3 f3 Bd3 f1Q Nce2 f2 Nf4 b4 Bc2 Qh3 Nge2 Qg4 Ne6 Nh6 Rh4 Ra7 e5+ Ke7 Bf4 Nc6 d6+ Kd7 d5 Nf5 Bd2 Ng7 Bc3 Rb3 Bd4 Rd3 Rh1 Rd2 Kb3 Be7 Ra3 Bd8 Rh6 Bc7 Ba1 Ba6 Rf6 Rha8 Rf8 Bd3 Ra2 Bg6 Ra3 Bf7 Qe1 Qg1 Qf1 Qh2 Qg1 f1R Nd8 Qhf4 e6+ Kc8 e7 Ne5 Ne6+ Kb7 e8B Rf2 d7 Kb6 d6 Kc6 d8Q+ Kd5 Bd1 Ke4 Bc6+ Kd3 d7 Rf1 Bd5 Bd6 Qh1 Ke3 Qh2 Kf2 Bc2 Ke1 Qb6 Rf2 d8B Kf1 Qc5 Qd4 Ng1 Nf3 Qh1 Bg3 Qh2 Ne5 Ne2 Rf5 Qb6 Qf2 Qd4 Qff4 Qhg1+
2b1k1nB/5nPN/2Nr2NQ/2qqpp1p/K1b3R1/1Q2rn1N/bP2B3/4b2R b - - 0 1 illegal: No proof kernel
7k/2q1qbp1/1Q6/1r1BbN2/2pPb2N/Nqnp2NR/rP2Qq2/BRK1n3 b - - 0 1 illegal: Other
2r1n1rb/1r1qP2p/2kQ1N1n/pN5r/p7/1q1BB1q1/BR5P/1Q1BbR1K b - - 0 1 illegal: No proof kernel
Nqb1R2q/4p2p/1nK5/1B1B1Q1b/2bBpPR1/3r4/1b1P1qBn/r2k2QN b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 Ke5 Kb5 Kd4 g4 c4 a4 h3 f4 c3 g5 b3 g6 h2 g7 b2 a5 c2 d6 Nf6 g8B Ng4 d7 Bg7 Na3 b1B a6 Ba2 a7 Bc4+ Kb4 b5 Ne2+ Kd3 Kc5 b4 Rg1 h1B Bb2 c1Q Bd5 b3 Bd4 b2 Nb5 b1Q Nc7 Nh2 Rg4 Bf3 Ng3+ Be2 Qe1 Kc2 Nh1 Re8 Qf2 Qe1 Qg1 Qf2 Bc6 Rf8 Bb5 Kd1 Kb6 Qe8 d8Q Nd7+ Kc6 Nb6+ Qd7 Rf5 Ra3 Rd5 Rb3 Qd8 Qf5 Qh8 Rbg3 Bf6 Rg8 Bf3 Re8 Bh5 Rg4 Bg7 Bc3 Rd3 Bd4 Rb8 a8B Qb2 Bb7 Ra8 Nd5 Bf6 Nc7 Ra1 Na8 Qb1 Kc7 Qb3 Bd5 Bg7 Kc6 Qb2 Be3 Qe5 Bd4 Qb8 Be3 Bc3 Bd4 Bb2 Bg2+
Q7/2Np4/1RqPRr1Q/1q3Q2/1pn1NPB1/1KQ1pn1b/1brq1r1k/2B4r b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 c4 Kf7 d4 Ke6 Kd2 Kf5 Kc2 e5 f4 a5 c5 h5 c6 a4 c7 h3 b6 a3 d5 a2 g3 h2 d6 h4 b7 e3 Ba6 e4 Nf3 Kg4 Qe2 Kh3 g4 Rh6 g5 Nf6 g6 Nd5 g7 Nb6 g8Q Qg5 Qh7 Bg7 Qd1 e2 Be3 e1Q Rf1 h1R Bc4 Qd2+ Kb3 Bb2 Bd3 Qb5 Rg1 Nc6 b8Q Rf6 Nc3 Bb7 c8Q Nc4 Nd4 N6e5 Qh6 Kh2 Qc2 h3 Be2 Nf3 Rge1 Bd5 Qc5 Be6 Qf5 Ra5 Rac1 a1R Qa8 R1a2 Ra1 Ra6 Qd3 Rc6 Bd1 Ra7 Ra6 Rc8 Rb6 Ra2 Nd5 Rc5 Ne2 Rc6 Ng3 Rc7 Bd4 Rc5 Nc7 e3 Ne4 Rc6 Rg1 Ba3 Rg5 Nfe5 Qaf8 Rg1 Be2 Qd1+ Qc2 Kh1 Bb2 h2 Qfh7 Bh3 Bd4 Nb2 Ng3+ Kg2 Qd8 h1Q Rh5 Kh2 Qa8 Qf3 Bc3 Rh1 Bd2 Rc4 Rg5 Qfc6 Bg4 Nf3 Re5 Qe2 Qcd3 Rcc1 Qc3 Nc4 Ne4 Qd3 Be1 Rf2 Qf5 Rcc2 Bd2 Bb2 Bc1 Qd2 Re6
7k/2Qp1b2/2Pb1N2/1pqrb1Kp/3BN1NR/bnn2PNq/4r2Q/R4B1r b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 a4 Kg7 c4 e5 g4 b5 g6 d3 Ke3 b3 g5 b2 c5 d2 f3 Qb6 a5 Bd6 a6 Nc6 a7 Bb7 Ra2 Re8 a8Q Nd4 Qb3 d1R Qa7 Bd5 c6 Nf6 Rh3 Qc5 Rh1 Bf7 Qc2 Nd5+ Kf2 e3+ Kg3 e4+ Kh4 e2 Ra1 e3 Nc3 b1Q Ne4 Nb3 Bb2+ Nc3 Qc7 e1B+ Kh5 e2 Rh4 h6 Kg4 Kg8 g7 Rd5 Qd2 Kh7 g8N Beg3 g6+ Kg7 Qc2 e1B Ne2 Bge5 N2g3 Rh7 Qe2 Kh8 Qh2 Bd2 Kf5 Bc1 Nf6 Qc2 Ng4 Qg2 Nh5 Qh3 Nhg3 Na4 Bd4 Ba3 Qg1 Nc3 Qh2 h5 Kg5 Ra8 Be3 Ra4 Bf2 Rad4 Be3 Rd1 Bd4 Rg7 Rc1 Rg8 Ra1 Re8 g7+ Kh7 g8N Kh8 Bc4 Rh1 Bf1 Re7 Nef2 Bg7+ Nf5 Re3 Ne4 Bge5 Nfg3 Re2 N8f6
1qr1bK1b/b1p4B/2q1RNBQ/1pn1p3/4n2P/RNPbr3/2n5/1NQNk3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f6 e5 Kf7 d6 Ke6 Bd2 Kd5 Bf4+ Kc5 dxe7 Kb6 e6 Kc6 Be5 fxe5 Kd2 Kc5 Kd3 b5 Ke4 d5+ Kf5 g5 Kg6 d4 Kf7 d3 e8Q Kd4 a4 b3 f4 Ke3 h4 Kf2 e7 g3 a5 g4 f5 d2 a6 g2 a7 g3 f6 b2 Qh5 d1N Nh3+ Ke1 Rg1 Ne3 Qh6 Bd7 Nf2 Bg7 Ra3 Na6 Nd1 Nc5 c3 Qb8 Qd8 Nc2 e8N Rh7 Qc1 Bh8+ Kf8 Rg7 f7 Nf6 Qc8 Nfe4 Nf6 Be8 Qe6 Qb7 Qc6 Rc8 a8B Qb8 Qb6 Rg5 Bc6 Rg7 Bd7 Rg4 Bf5 Rf4 Bg6 Rf3 Rh1 g1B Bd3 g2 Rh3 Rd8 Rg3 Rc8 Bh7 Be3 Rg6 g1Q Qd6 Qg2 Rh6 Nd2 Bdg6 Nde4 Qdd2+ Kf1 Bh5 Na4 Ng8 Nd6 Re6 Bg1 Qh6 Ke1 Ke7 Ba7 f8N Re3 B5g6 Qc6 Nd7 Ne4 Kf8 Nd2 Ne7 Ne4 Nf5 Nac5 Nd4 Nb4 Nd2 b1B Nf6 Bd3 Nb1 Nc2 Nb3
1NN1R3/nBp2Pn1/4p1bQ/2q3B1/q1q3Nr/2r3Rb/2PQpN2/2kb1bK1 b - - 0 1 illegal: No possible last move, all moves rejected
r1r1B3/1P5K/Rn1pkB1p/5B2/bB1Q4/b3P3/1p1bN2Q/qbNR1nqq b - - 0 1 illegal: No proof kernel
1NRB3n/nP1br2q/1Qp1p1B1/1RKpQ1bk/5R2/n5rq/2R2Pr1/4N1r1 b - - 0 1 illegal: No proof kernel
3k1RbN/1Pb1p1RQ/2pP3K/1r1n1brB/1Bp1N1r1/5QRq/2r2n2/1q4R1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 a5 Ke3 h5 Kf4 e3 Kg5 h3 f4 a4 d4 a3 b4 h4 g4 c6 d5 e2 b6 e1Q b7 a2 f5 h2 f6 h3 b5 Rh4 b6 Na6 b8R Bg7 b7 Bf5 Ba3 Nb4 Be2 Ra5 Nc3 Nh6 Nf3 Rb5 Ne4 Qc8 f7+ Kd8 Rg1 h1B Ne5 h2 Ng6 Be5 Rg3 Bc7 d6 Nd5 Nh8 Qf1 Rc1 a1R Bb4 Raa5 Qb3 Ra2 Qf3 Rc2 Rd1 Qh3 Rdg1 Qf1 Ra8 Qb1 Ra5 Bg2 Ra2 h1R f8R+ Kd7 Ra8 R1h3 Rf7 Kd8 Rg7 Rh2 Bd1 Bh3 Be2 Rg2 Rb8 Be6 Kg6 Bg8 g5 Rg4 Kh5 Nf5 g6 Nfe3 Kh6 Nd1 Ra8 Nf2 Rb8 Kd7 Bd1 Qf8 Rc8 Qf5 Rf8 Qe6 Qc3 Rg5 Bh5 Bg4 Qf3 Bf5 Rh3 R2g4 Rhg3 Qf6 Rh7 Qc3 g7 Bf7 g8Q Qe3 Qg7 Bg8 Qg6 Qd3 Rg7 Qdb3 Rf6 Kd8 Qh7 Qd3 Rff7 Qdf1 Rf6 Qh3 Rf8+
2bk1q2/PbQ3bK/1P2p3/1Qr2R1Q/1nbBp3/q2p2R1/4N1n1/2rrQB1N b - - 0 1 illegal: No proof kernel
r4b2/R5n1/nQBk1Q1p/1BN2nr1/1Rp1n1PB/N1b3n1/q3Bp1P/n1K5 b - - 0 1 illegal: No proof kernel
2br1Rnn/Q2q1BB1/p2PprN1/1N6/Nb2k3/1n2b1b1/PKQp3n/4R1N1 b - - 0 1 illegal: No proof kernel
2r2NrR/1Nr2P1K/p5nB/Qp1pB2R/2B3n1/n1b2P1B/b1Q1qn1r/4k3 b - - 0 1 illegal: No proof kernel
1Q2b2R/4rpn1/2q1Qnn1/KNN1RPb1/1p3rr1/1P1pB3/1N1Nrk1n/5B2 b - - 0 1 illegal: No possible last move, all moves rejected
r6Q/n2KP2B/1QR2Prb/4q1R1/N2bbrNQ/7p/p4Brp/1Qnk2b1 b - - 0 1 illegal: No proof kernel
3B4/b1pr1k1N/4B1p1/1qb2r2/1Bbr1RP1/1Q1prN1K/1b4nP/RnB2Q2 b - - 0 1 illegal: No possible last move, all moves rejected
k3R2R/1pbpb3/rQ1Q1nq1/N5r1/3rP3/1nBR2Pb/B1bpR3/3r1N1K b - - 0 1 illegal: No possible last move, all moves rejected
1R3K2/2pBrb2/rQ2Rq2/Q3bb1r/bn4q1/1p2pN1N/RP3P2/1kBR2b1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a3 d5 h5 dxc4 h6 Na6 Bd3 Nb4 Be2 gxh6 Bf1 h5 Qb3 h4 Qd1 Nc6 a4 b4 Ra3 Nd4 Ra1 Nb5 axb5 Be6 Rh2 Bf5 Rh1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 d3 e5+ Ke3 Kc5 g5 b3 g6 a4 g7 c3 b6 a3 b7 h3 b8R c2 Nd2 h4 Nc4 a2 Nf3 h2 Rb1 a1Q Ncd2 h3 Bg2 Ne7 g8Q Rh5 Nd4 Ra6 Rg1 h1B Qe6 h2 Qdg4 Qa4 Bf3 Nc6 Qgf5 Nb4 Bg4 Bd6 Qff7 Qf6 Ra1 Bg2 Qf5 h1B Ne2 Be6 Nf3 Bh3 d4+ Kc4 Qg7 Bf7 d5 B1g2 Ra2 Bh1 Bd2 c1B Qh6 Qd7 Qfg5 Qa4 Bd7 Bf5 Nf4 Bg2 Ke2 e3 Re1 e4 Nh3 Be5 d6 Bh2 Rd1 Bg1 Re8 Bh1 Re6 Bg2 Qf8 Bh1 Qb8 Bg2 Qb6 Bh1 Ke1 Kd3 Kf1 Kc2 Ke2 Bh7 Qga5 Kb1 Bb5 Bhg6 d7 Bf5 d8R Bg2 Bd7 Bf1+ Ke1 Bb5 Rb8 Bc6 Kf1 e2+ Kg2 e1R Kg3 Re2 Be3 Bb5 Rd4 Bd2 Kf4 Bc3 Bd2 e3 Bc1 Rd2 Rde4 Rd5 Rd4 Re5 Rd1 Bc6 Red6 Re8 Re6 Re7 Rd4 Qh4+ Ke5 Qg4 Kf6 Qb5 Qc5 Qb6 Qd6 Ba4 Qc6 B5g6 Kg7 Bd3+ Kf8 Bf5 Rd5 Be5 Rd1 Qbd4 Qcb6 Qdf4 Rf6 Qfg5 Rfd6 Qf6 Re6
2Bq2bQ/1p2bN2/rkb2Rn1/3PB3/p1pn4/4N2q/1nPQb2b/2K1NNR1 b - - 0 1 illegal: No proof kernel
NNq2Rq1/1p6/1pp5/rrPqq1RK/bP1B2n1/1k1r2B1/1Q4BQ/1Bn4q b - - 1 2 legal: proof: g4 d5 e4 dxe4 Qf3 f5 Qe3 fxg4 h4 g5 Qf4 g3 Qe5 g4 Qe6 Bh6 Qb6 Bg5 hxg5 axb6 Ke2 Kf7 d4 Ke6 f4 Kd5 a4 Kc4 b4 h5 d5 e5 d6 g2 f5 c6 f6 e3 a5 g3 Kf3+ e2 g6 h4 a6 h3 g7 h2 f7 Rh4 f8B Qg5 d7 Re4 d8Q Nf6 g8B+ Be6 a7 Nbd7 Bf4 Bf7 Qb8 Ng4 Ra5 Rd4 Bg7 Nc5 Nc3 Nb3 Nd5 Nc1 Nc7 Rd1 c3 Kb3 c4 e1Q Bh7 Be6 Bb1 Rd3+ Be3 Qd8 Bf6 Qd7 Bh4 e4+ Kf4 Qd2 Kg5 Bf5 Kh5 Qc8 Bd4 e3 Nf3 g1Q Bg2 e2 Ne5 e1Q Nd7 Qe5 Rc5 Qa2 Ra5 Qd1 Rf1 Qf3 Rb5 Qfd5 Rc5 Qdg8 Rd5 h1Q c5 Be4+ Rf5 Bf3 Rg5 Bd1 Rd6 Qgd5 Rf6 Bc2 Rf8 Bd1 Bh3 g2 Bhf2 g1R Bg3 Qhf3 Bg2 Qg8 Rgf5 Qa1 Rg5 Qfd5 Na6 Re1 Qc7 Re2 Ndb8 Ra2 Qd6 Ra5 Nc7 Rb5 Qf6 Qc3 Qf2 Qce1 Qg1 Q5e2 Qh2 Qh1 Nd7 Rb8 a8Q Qee5 Qa1 Ra8 Nb8 Raa5 Na8 Kc4 Bdf2 Ba4 Bd4 Kb3 Qb2+
qr6/nBb2p2/2nB1Q1N/n1p1RKb1/4Qb2/1B2Ppq1/NRP2k1b/3bB3 b - - 0 1 legal: proof: f4 c5 g4 a5 d4 h5 a4 hxg4 d5 b5 f5 bxa4 f6 Ra6 Na3 Rc6 dxc6 exf6 Nb1 f5 Bh3 f4 Bg2 Ke7 Bf1 Ke8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 b4 d5+ Kd3 Kf5 h4 a3 e3 a2 c7 g3 h5 g2 b5 d4 b6 a4 h6 a3 h7 g4 b7 g3 Rh3 Nc6 b8B Na7 Ne2 Kg4 Ke4 g1B Qd3 g2 Rh2 Bd6 Qd2 d3 Nbc3 Ne7 Nd1 Nec6 Rb1 a1B Rh5 a2 Nb2 Bh2 Qe1 g1B Na4 d2 Nac3 d1Q Ng3 f3 Rd5 Ba6 Bd2 Bf4 Nf5 Be2 c8B Qa5 Qf2 Qe1 Bb7 Bd1 Bd6 Rb8 h8Q Qa6 Qe2 Qg3 Qc4 Bb2 Be2 a1N Be1 Nb3 Qf6 Nba5 Na2 Kh3 Qa4 Kg2 Bc4 Bg5 Nh6 Be5 Kf5 Bef4 Re5 Bf2 Bc3 Be1 Bb3 Kf2 Qe4 Bd2 Bc8 Qb7 Rb2 Qa8 Bb4 Be1 Bb7 Bc3 Re8 Bce5 Be1+ Ke2 Bf8 Bc7 Bd6 Kf1 Re5 Kg2 Bc3 Kf2 Be1+
2n1N3/2Rr4/N4Qqr/BNpPb1r1/1qPQ1RBk/2n2K2/2Nppn1q/1n6 b - - 0 1 illegal: No proof kernel
4N1Q1/2q2P2/np2r3/rP1rq1Q1/1b1p3k/b4BNB/1qRp1Kb1/1bR1B2B b - - 0 1 legal: proof: e4 c5 h4 f5 d4 cxd4 a3 fxe4 h5 Nc6 h6 b6 a4 gxh6 a5 h5 a6 h4 Bb5 Na5 Bf1 Nb7 axb7 Bg7 Be3 Bh6 Bc1 Bf8 b8Q Kf7 b4 Kg6 g4 e5 f4 h5 c4 d5 g5 a5 c5 h3 b5 d3 c6 e3 c7 d4 Nc3 a4 Nf3 e4 Rh2 h4 f5+ Kh5 f6 a3 f7 a2 g6 e2 g7 Ra5 Kf2 e1R Na4 e3+ Kg1 e2 Bf4 Bf5 c8B Ba3 Bd7 Ne7 g8B Nc6 Qb3 Qc7 Ne5 Nb4 Qd5 Na6 Rc1 a1Q Bg3 Qb2 Bh7 Rd8 Nc4 Qe5 Rg2 h2+ Kf2 h1Q Nc3 h3 Ne4 h2 Bc6 Kg4 Qc5 Rd5 Ncd6 Bg6 Ne8 Qc7 Bf4+ Kh4 Ng3 Be4 Bd2 Bf5 Rg1 Qe4 Rc2 h1B Bh3 Bg2 Bg6 Qee5 Bh5 Ra1 Rgc1 e1B+ Kg1 Bg6 Bf3 Rb1 Bb4 Bd2 Kf2 Be4 Rf1 Re1 Qc8 Re3 Rfc1 Bc3 Qf8 Bg6 Qf5 Re4 Qg8 Bd2 Bf8 Bdb4 Bh6 Re1 Bd2 Re3 Be1 d2 Qf6+ Qg5 Qf8 Rd6 Rc3 Bh1 Bfg4 Ree6 Qg8 Bb1 R3c2 Bf3 Be4 Rd5 Qfg6 Qge5 Q6g7 Be2 Bh1 Bf1 Bgf3 Bg2 Qg5+
5b2/pqR3k1/P1rn4/R4qB1/n1Q1P1q1/KN1Rpb1R/N3p2b/2QBn2n b - - 0 1 legal: proof: h4 d5 e4 dxe4 c4 g5 c5 gxh4 c6 e5 f3 e3 Qb3 e2 Qc2 e4 Kf2 bxc6 Qb3 c5 Qd1 c4 Ke3 Qg5+ Kd4 e3 Kc3 Na6 Qe1 Qd8 Qd1 Nc5 Kb4 Na6+ Kb5 Rb8+ Ka4 Rb5 Rh2 Re5 Rh1 Re4 fxe4 Bh3 Qc2 Bg4 Qd1 Bc8 g4 f5 b4 Kf7 d4 c5 g5 h5 d5 h3 b5 c3 b6 h2 b7 h4 b8R c4 d6 f4 d7 f3 g6+ Kg7 a3 c2 Rb2 c3 Nd2 h3 Bg2 f2 Nb3 f1Q Nf3 Nh6 Nfd2 Nf5 Nb1 Qg5 d8R Rh6 Rd3 Qg4 Bd2 c1B Be1 c2 Bh4 Bd6 Bg5 Nc5+ Kb4 Bg3 a4 Nd6 a5 Qff5 a6 Na4 Ka3 Bd2 Qe1 c1N Rc2 Ba5 Nc3 Bd7 Rd4 Nd3 Qc1 Ne1 Na2 Bd8 Rc5 Be7 Rd3 Bf8 Rc7 Bf4 Rf1 h1N Rf3 h2 Rh3 Nf2 Bf3 h1Q Bg2 Bh2 Bf1 Kg8 g7 Qhf3 Bg2 Nh1 Bf1 Qf7 Bg2 Q3f4 Bf3 Qgf5 Bh5 Q4g4 Bg6 Q7d5 Be8 Qb7 Bf7+ Kh7 Bc4 Be8 Bd5 Bh5 Be6 Kg6 g8Q+ Bg7 Qc8 Bf8 Bf7+ Kg7 Qe6 Qfb5 Qec4 Qbf5 Qc5 Qb6 Nd2 Qgf4 Bb3+ Nf7 Bd1 Rc6 Nb3 Nb2 Nb4 Bf3 Ka2 Qb7 Q5c4 Q4g4 Qd2 Na4 Qdc1 Nc5 Kb2 Qb6 Ra2 Qb7 Ra5 Na4+ Ka2 Nb6 Ka3 Na4 Rc8 Nd6 Rc7+ Qf7 Na2 Qfd7 Be7 Qdf5 Bg5+
4bNRr/b2Q2p1/Q1p1n3/5p2/Q2P2P1/Brq2NrQ/1rrbR2K/1B1kb3 b - - 0 1 illegal: No proof kernel
2R4n/1p3N1p/nr1BR2K/n1q3p1/1Pb4Q/BnnN2P1/1R4RQ/qn2k2r b - - 1 2 legal: proof: e4 a5 b4 c5 h4 f5 d4 fxe4 h5 cxd4 h6 g6 Bc4 a4 Bb3 Bg7 hxg7 axb3 Kd2 Kf7 a4 Ke6 f4 Kd5 a5 Kc4 a6 e5 f5 d5 a7 d3 Ke3 g5 c3 d4+ Kf2 e3+ Kg3 e4 Kg4 d2 Kh5 Kd3 g3 b2 c4 e2 f6 e1Q f7 e3 f8B e2 c5 Na6 c6 Qd5 c7 Nh6 g8R Qc5 Nf3 Nf7 Rh2 Be6 c8Q Bc4 Rg6 Rg8 Rg2 Nh8 Re6 Rg6 Re5 Rb6 Na3 b1N Qa4 d1N Qh3 Ndc3 Bd6 Qd1 Re7 e1N Nb5 Nc2 Ra2 Na1 Qh4 Nb3 Ba3 Re8 a8R Qf1 Rg7 Re1 Rc8 Ke3 Rad2 d3 Rb2 d2 Rg6 d1N Ne5 Qf6 Qa5 Rh1 Kh6 Qf1 Re6 Qe1 Nf7+ Kd3 Nd4 Ne3 Nf3 Qc1 Ra2 Qb2 Qb5 Qa1 Rgb2 N1d2 N3e5+ Ke2 Qc6 Ke1 Qg2 Ndb1 Qc2 Bb5 Qg2 Nc4 Qgh2 Nca5 Rg2 Bd3 Rab2 Bc4 Nd3+
KRq2N2/n2q2B1/2Q1rP2/pp2b2q/3Q1rq1/2p1q1qb/QP5k/N2QRB2 b - - 0 1 legal: proof: e4 b5 c4 d5 a4 dxc4 h4 g5 a5 gxh4 e5 Nd7 e6 Nb6 axb6 fxe6 Ra3 e5 Ra1 e4 Ke2 Kf7 Ke3 Kf6 d4 Kg5 g4 a5 b7 c5 b8Q h5 d5 e5 f3 c3 d6 c4 d7 h3 f4+ Kh4 g5 Kg3 g6 c2 f5 h2 f6 h4 g7 h3 Qd2 Ra6 Qc3 Ne7 Nf3 Re6 Nfd2 Nc6 Qd3 Rh4 Qdd6 Na7 Qbb6 Rf4 Qdc6 Bd6 Na3 c3 Ke2 e3 Kd3 e4+ Kd4 e2 Kd5 e1Q Ndc4 e3 Ne5 e2 Qd4 Qd2 Ng6 e1Q g8Q Be5 Kc5 Qee2 Nf8+ Qg4 Kd5 Qc7 d8Q Qg2+ Kc5 Qd7 Kb6 Qf2 Be3 c1Q Nc2 Qce1 Bd2 Qee3 Re1 Qg2 Rg1 h1Q Na1 Kh2 Qf7 Q2g3 Bc1 Rd6 Qa2 Re6 Bd2 Qhd5 Bc1 Qe8 Bd2 Bd7 Kb7 Bc8+ Ka8 Qdd7 Rg2+ Kh1 Rh2+ Kg1 Qdc7 Qde7 Q6b7 Q4h4 Nb3 Ra6 Ree2 Re4 Qcd7 Qef2 Bh6 Qfe3 Ne6 Rf4 Qd1 Qeg7 Rhf2 h2 Re1 h1Q Rh2 Qhg5 Rd2 Qhh5 Nf8 Rb6 Rd5 Kh2 Na1 Qgf7 Qd8 Bh3 Bg7 Re6 Qc6 Qg5g4 Rd7 Qfe7 Rb7 Qc7 Rb6 Qc8+ Rb8 Qe7 Q8d6 Qed7 Q6d4
Qq5N/4R1RN/pQ2B2r/1kpp1n2/N6r/PPnbrN1n/1B1r4/4r1nK b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 Bh3 b5 Bf1 bxc4 h4 g5 Qa4 Be7 Qb3 fxg4 Qc2 g3 Qd3 g4 Qd1 Bg5 hxg5 Bb7 Qc2 Ba6 Qd1 Bc8 f4 d5 e4 Kd7 g6 Kc6 g7 h5 e5 a6 b3 c3 f5 c2 a3 h4 f6 d3 e6 g2 Kf2 d2 f7 g3+ Kf3 h3 f8N h2 e7 Rh6 e8Q+ Nd7 Qde2 d1R Nh7 Rd2 Qe1 Ne7 g8N Nf5 Q8e3 Nf6 Bb2 c1R Nc3 Ne4 Na4 Nc3 Q1f2 Rb8 Qa7 Re1 Qa8+ Rb7 Bd3 Qf8 Be4 Kb5 Ne7 c5 Ng6 Rh4 Nh8 Re7 Qe3 Be6 Qh6 Qb8 Qg6 Bf7 Qd6 Bg6 Qd8 Nd6 Bf5 R7e5 Be6 Bd3 Qc7 Nf5 Rc1 Nd1 Rc4 Nc3 Rg4 Rh6 Rg7 R5e2 Kf4 Re3 Nf3 g1N Kg4 g2 Qd8 Nd6 Kg3 Nh3 Rg1 h1R Re7 Nf2 Qc7 R1h4 Qd8 Nh3 Kh2 Red1 Rg7 Ra1 Re1 g1N+ Kh1 Nf5 Bc8 Ree4 Re3 Re1 Re2 Rb4 Ree7 Rbe4 Be6 R4e3 Qb6+
b1nN4/r4np1/R4nQ1/p3rnP1/1QR1PB1b/K1nn1pR1/2BN1k2/b1R5 b - - 0 1 illegal: No proof kernel
2q1rQ2/NPnr1n1R/2Q2pb1/1Q1q2p1/pn2n2B/4Q1PB/3N4/K1R1q1qk b - - 0 1 legal: proof: f4 b5 h4 c5 a4 bxa4 d4 cxd4 f5 g6 h5 Bg7 h6 e6 hxg7 exf5 Ra2 f4 Ra3 Qc7 Ra1 Qd8 Kd2 Ke7 e4 Ke6 b4 Ke5 c4 a5 Kc2 h5 Kb2 d5 b5 f6 g3 a3+ Ka2 a4 b6 d3 c5 h4 c6 d4 b7 h3 c7 f3 Be3 h2 Bc1 d2 Bb5 d3 Bc4 f2 Qf3 f1Q Bb3 d1Q Qg4 d2 Ne2 Nh6 g8Q Rh7 Qd7 Na6 Bd5 Nf7 Nf4 Qg1 Ne2 Qde1 Qg7 d1N Qf8 Nf2 Qb5 Bf5 c8Q Nc7 Nd4 Rg7 Qcd7 Qc8 Nd2 Rh7 Kb1 a2+ Kb2 Rb8 Qdc6 Rg7 Rb1 a1N Ka2 Nc2 Be6+ Nd5 Bd7 Nb4+ Ka1 Rh7 Qa5 Rg7 Nb5 Nc7 Na7+ Kd4 e5 Ke3 e6 Ne4 e7 Kf2 e8Q Kg2 Qab5 Ra8 Nf1 Rb8 Bg5 Rh7 Bh4 g5 Rd1 Bg6 Bf5 Qc5 Qee7 Qd5 Nd2 Rg7 Rf1 h1Q Bh3+ Kh2 Qec5 Qg1 Qe3 Kh1 Rc1 Qcf5 Rf2 Re8 Re2 Qc8 Qec3 Nf2 Re7 Ne4 Qe3 Nh8 Re5 Rd7 Re6 Nf7 Re7 Nd8 Rg7 Nf7 Rh7
q4r2/1p1BpqBQ/3P1nqq/2BQ2N1/bKbb1r2/1P6/1p4Nk/3B1RRb b - - 0 1 illegal: No proof kernel
kbN2rbb/6QN/r5QB/nBp1RQ1n/3R1P1r/1r4bQ/p1P4p/3b1K2 b - - 0 1 legal: proof: d4 f5 a4 e5 a5 exd4 a6 bxa6 Qd3 a5 Qd1 a4 h4 g5 Ra3 g4 Ra1 f4 g3 Qg5 hxg5 fxg3 e4 Kd8 f4 d5 b4 c5 g6 Kc7 b5 Kb7 e5 h5 g7 a5 b6 a3 e6 g2 e7 d3 e8Q d2+ Ke2 h4 Ra2 g3 Rh2 d4 Qe4+ Nc6 Nf3 g1R Ne5 d3+ Ke3 g2 Kf2 h3 Ng4 a4 Be2 Bd6 Rb2 a2 Nc3 a1B Qd4 a3 Ne4 a2 Rb4 Bb8 Ngf6 Be6 Nh7 Na5 Bb2 Ra6 Nd6+ Ka8 Qf1 d1R Nc8 d2 Bb5 Nf6 g8Q Rh1 Qg6 Nh5 Qdg7 Rf8 Rd4 Bg8 Qfd3 Rb1 Qdf5 g1B+ Ke2 d1B+ Kf1 Bc4+ Re2 Bg8 Re5 Rh2 Bc3 Bf2 Bb2 Rg2 Bc3 h2 Bb2 Rg4 Bc3 Bd6 Bb2 Bg3 b7+ Kb8 Bc3 Rh4 Qh3 Rb4 Qgf5 Rb3 Qgg6 Kc7 b8Q+ Kd8 Qa7 Bc4+ Rd3 Bg8 Ree3 Bb2 Bd4 Bb8 Qaf7 Bc3 Bg7+ Bd4 Q7f6+ Kc7 Bh6 Kb7 Re4 Bde5 Rdd4 Ka8 Qe7 Bg7 Re5 Bh8 Qeg7
RK4N1/QnQ2B1p/3b3R/rp3p1P/rb2N1B1/2r1B1n1/4nbBP/1r1b2k1 b - - 0 1 legal: proof: f4 d5 b4 a5 c4 axb4 f5 dxc4 f6 exf6 g3 f5 g4 f4 Bb2 Qd5 Bc1 Qh5 gxh5 Bg4 Bh3 Bd7 Bf1 Bc8 Kf2 Kd7 Kf3 Kc6 Ke4 Kc5 Ke5 b5 e4 g5 a4 g4 a5 b3 a6 b2 a7 g3 d3 f3 Ra2 c3 Qa4 g2 Qa6 c2 Ra1 f2 Ra5 Ne7 Ra2 Nf5 Ne2 g1B Nf4 Nd6 Ng6 Nb7 Bg2 f1N Nd2 b1R Ne7 Bg4 Ng8 Bf2 Rg1 f5 Ke6 Kd4 e5 Ke3 d4 c5 d5 c4 d6 c3 d7 Be7 d8Q Bb4 Qc7 Nc6 Kd7 Bd1 e6 Nd4 e7 Ng3 e8B Nde2 Bf7 Bd6 Bf3 Bb4 Bg4 Bd6 Bb2 c1B Ne4 Bd2 Bc1 c2 Qa4 Rb4 Qa6 Ra4 Kc6 Rc8 a8B Ra5 Kb6 Ra4 Ka7 Ra5 Qb8 Rc3 Qc7 Ra4 Kb8 Ra5 Ba3 c1R Re1 Rb1 Qa7+ Rc5 Bb4 Ra4 Ba5 Bb4 Bb6 Ra5 Bh3 Kf3 Bg4+ Kg2 Ra3 Rc3 Be3 Nc1 Re2 Kg1 Rd2 Nce2 Raa2 Be5 Rd6 Bf4 Rh6 Bfd6 Rd2 Be7 Rd8 Bed6 Ngf6 Re8 Ng8 Re5 Rc8 Rec5 Re8 R5c4 Ng5 Nd8 Bg2 Bbc5 Ka8 Nb7 Ne4 Rca4 Rf8 Bb4 Rc8 Nd8 Rb8 Nc6 Kb7 Nd8+ Kc8 Nb7 Ra8 Rba1 Kb8 Rac1 Bh1 Rb1 Bg2
b2n2r1/prkbp3/2Nr1BQR/p1PB1Q2/1R1KPn2/1R3N2/2bb4/1n1n3R b - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 a5 b6 Qd3 bxa5 Qd2 Qb6 Qd1 Qd8 h4 g5 Bg2 Qc7 Bh3 Qc5 Bg2 fxg4 Bf1 g3 Nd2 g4 Nb1 Qg5 hxg5 Bh6 Qd2 Bg7 Qd1 Bf8 Kd2 Kd8 Kd3 h5 b4 d5 c4 h4 f4 g2 f5 g3 c5 h3 f6 h2 b5 Bd7 g6 Nc6 f7 Rb8 b6 Nf6 b7 Rg8 g7 Kc7 e3 Nd8 Ra2 Ne4 Ra1 Nc3 Nd2 Nb1 Ngf3 g1N Ra4 g2 Nb3 Nh3 Qc2 g1R Bb2 Rg6 Bg2 Re6 Rb4 Rd6 Rd1 h1B Ba1 Rh8 g8R Bh6 Rg6 Rg8 f8Q Bf4 Qf5 Bg5 Ke2 Nf4+ Kf2 d3 Rh6 d2 Bf6 d4 Qce4 d3 Nbd4 Re6 Nc6 Rd6 Rf1 d1B Rb3 Ra8 b8R d2 R8b4 Bc2 Qg6 Rb8 Qef5 Rb7 Rg1 Nd5 Ke2 Bd1+ Kd3 Bc2+ Kd4 d1N Ne1 Nf4+ Bd5 Bh4 Nf3 Be1 Rf1 Bd2 Re1 Bg2 Reh1 Nh3 Ne1 Bf1 Nb8 Nf4 e4 Bc4 Nf3 Rbb6 Rh7 Ba6 Ne5 Bb7 Nbc6 Ba8 R7h6 Rb7 Nf3
B2B4/1NQP1nnN/k1K1b1r1/1Rp5/2pNr3/1R1rnp1b/PQ2pq2/b6N b - - 0 1 illegal: No proof kernel
2Kb4/1rp5/1pB1pb1B/1Q3r2/NpRNP1nq/N5P1/Rn1kQ1rN/1n3b2 b - - 0 1 illegal: No possible last move
Rb1b1RBN/q5qQ/5B1q/1pB1P1PN/p2KQ3/1bpp3n/n2B4/2rr2k1 b - - 0 1 illegal: No proof kernel
5nb1/r2qb1k1/N1nPpP1p/RRpr1B2/4R3/1N3Rnp/rB2Q2q/4K2Q b - - 0 1 illegal: No possible last move, all moves rejected
n5qB/1k2p2R/nPbNBq2/3p4/N2Q4/n3rr2/p1pP2Qr/KRRRb3 b - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 g5 h4 gxh4 c5 b5 axb5 Nc6 Ke2 Nb4 c6 Nxc6 Ra6 Nb4 Ra1 Nc2 b4 d5 f4 Kd7 g4 a5 g5 h5 g6 c5 f5 Kc7 f6 a4 f7 e3 Kd3 c4+ Kc3 a3 b6+ Kb7 g7 a2 Kb2 c3+ Kb3 e2 b5 e1N Qg4 h3 Qg2 h4 Qe4 h2 Bc4 h3 Qd3 Na3 Qd4 c2 Kb2 Bd7 Nc3 Nf6 g8Q Ne8 Nge2 Nc7 Ng3 Bg7 f8R Bf6 Bb3 Bh4 Rff1 Bc6 Nge4 Qe8 Qg6 Rf8 Na4 Rf3 Qg2 Qg8 Bc4 Ra5 Be2 Na8 Rfg1 Re3 Bg4 Ra7 Rb1 Nd3+ Ka1 Nb4 Be6 Be1 Bb2 Na6 Rd1 Rf3 Rf1 Re3 Rf7 Rf3 Rg1 h1Q Rh7 h2 Rf1 Qg1 Bc3 h1R Nd6+ Kb8 b7 Rh2 Bb2 Qf2 Rc1 Kc7 b8R Re3 Rh1 Qf6 Rb6 Bf2 Rhd1 Be1 Qb4 Rb7 Be5 Rb8 Qd4 Rf8 Rb8 Qfg5 Bh8 Rff3 Rf8 Qe5 Rf4 Qf6 b6+ Kb8 Rb1 Rg3 Rf1 Rgf3 Nf5 Kb7 Rdc1 Bh4 Rfd1 Be1 Nd6+
4Q3/3P1n2/2pqp1Rb/rb2qn1Q/2NQ2n1/k2p3r/B3QP1p/2NKBr1R b - - 0 1 illegal: No proof kernel
N1Q3R1/1r1pnr1n/3B4/1bPq1Ppk/2qb4/5N2/pqpK1NRQ/1Bn3N1 b - - 0 1 illegal: No proof kernel
2NR1B2/2Bp2q1/p1r3PQ/rbnpq2k/n1B2PR1/2B5/4bNKp/2q2Qb1 b - - 0 1 illegal: No possible last move, all moves rejected
1Nq2q2/1BrpP2B/3R1Bn1/QRP4r/2Q2Np1/k2q1r1B/p2pnb2/K6b b - - 0 1 illegal: No proof kernel
N6B/r1pK1Q2/q3pp2/bP3N1p/kPbQ2qn/1q2Nb1R/4Bn1R/6Nr b - - 0 1 illegal: No proof kernel
b1BRB3/P1pQn2r/4b3/5p1p/6q1/k1P1Qq1R/Bqpr4/rN2KnBN b - - 0 1 illegal: No possible last move
RK2b3/pbrB1R1p/PQ1rP1RB/2np4/3N4/3k2n1/2nbp3/1RQq1N1q b - - 0 1 legal: proof: h4 f5 d4 e5 e4 c5 b4 g5 Qg4 gxh4 bxc5 exd4 e5 Nh6 Qe2 Ng8 Qe4 fxe4 Ke2 Kf7 g4 Ke6 a4 Kd5 f4 Kc4 c6 d5 e6 b5 a5 b4 f5 e3 Kf3+ d3 Kf4 b3 Ke5 h3 f6 h2 a6 b2 c7 Qe7 f7 Bh6 f8R Qe8 Kd6 Ne7 g5 Rg8 g6 Bg7 Ne2 d2 Rg1 h1N Rf7 Bb7 c8Q+ Nec6 Kc7 d1Q Qd8 Bf8 g7 Nd7 Rg6 Bb4 c3 Rb8 Nd2+ Kd3 c4 b1B c5 Nd4 c6 Nc5 Qd6 Rf8 g8R Ng3 Rh8 Bc2 Rb1 Ba4 Rhg8 Nc2 Nd4+ Kc3 Be2 Rd8 Bb5 e2 Rh8 Rg8 Nf1 Rg7 Bh6 Qf8 Qf4 Qg8 Qf2 Rd6 Qg1 Qf8 Rg8 Qe7+ Kb8 Qh4 c7 Qh1 Bd7 Kd3 c8Q Bd2 Qd8 Bac6 Qb6 Bb5 Kc7 Ba4 Ra8 Bac6 Kb8 Ba4 Rf2 Re7 Rf7 Bb5 Be8 Rc7 Bd7 B5c6 Bc8 Be8 Bd7 Nge4 Qg5 Ng3 Rgg7 Be1 Qc1 Bd2 Rg6
Q1N4r/nb6/1N1bQR2/1bpNbN1p/qBnr1b2/B6k/P2Rpp1P/2K5 b - - 0 1 legal: proof: e4 a5 c4 f5 f4 d5 b4 dxc4 bxa5 g6 Be2 Be6 Bg4 fxe4 f5 Bd7 f6 Bc8 Bf5 gxf5 d4 Kd7 Kd2 Ke6 g4 b5 a6 c5 a7 h5 f7 e3+ Kc2 c3 g5 b4 g6 b3+ Kd3 c2 g7 f4 d5+ Kf5 d6 e5 d7 b2 Nf3 Kg4 Nfd2+ f3 Nb3 e4+ Kc3 e2 Kd2 e1B+ Ke3 Ne7 g8N Kh3 Qe2 Bb7 Rf1 Ng6 Ne7 Bc3 Nd4 Qe8 d8B Ne5 Ndf5 Qa4 Ba5 Nbc6 Bb4 Rd8 a8Q Rd4 Nc8 Bd6 f8N Na7 Nd7 Nc4+ Kf2 Re8 Ndb6 Rh8 Rd1 e3+ Kf1 Re4 Rd2 Bce5 Ke1 Rd4 Nc3 b1B Bca3 c1B Ncd5 Bc2 Rb1 Bd3 Rb3 f2+ Kd1 Bb2 Qe1 Bc3 Kc1 Bf4 Qg1 e2 Qg8 Ne3 Qe6 Bb5 Rd1 Ba1 Rbd3 Bc3 R3d2 Nc4 Rg1 Rd3 Rg6 Bce5 Rh6 Rd4 Rf6
4Q3/4ppb1/PkNQQp1R/3N1b2/2P1n3/2r4n/1q1p1QBK/1RnnBr1n b - - 0 1 illegal: No proof kernel
n1bBb3/2kp2P1/2B1QB2/pp1Pbr1Q/2p2q2/B2nbRb1/N1K1R3/r2N4 b - - 0 1 illegal: No proof kernel
1R4rR/QBQ3N1/2N2Kn1/B1bp1b2/1p1Q1P1p/4n2Q/2b1pPrq/b1k1r3 b - - 0 1 illegal: No proof kernel
1b5q/Qk5B/nn2br1R/2ppnNR1/1B3p2/PP1Q1N2/3p2Rr/K2Rnr2 b - - 0 1 illegal: No possible last move
n4rB1/Kp1P1NRn/3P4/Nr2p1B1/1QR1rb2/3p2R1/R3bnnp/q3Q2k b - - 0 1 illegal: No proof kernel
2N5/P2pqRn1/6QB/krrQ4/n2KBbP1/2N3Rp/B4ppn/1br1Bn2 b - - 0 1 illegal: No proof kernel
r4R2/p4rqp/1np1Q1n1/b3rb1Q/2RP1P1p/BBBk1K2/N2B1b1N/6b1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 g4 Ke6 b4 Ke5 b6 Kd4 b7 e5 b5 e3 b6 e4 g5 c3 g6 c2 g7 c6 Ba3 c1B Nf3+ Kc4 Nc3 Qd7 Nh2 Ne7 Na2 Ng6 g8Q+ Kd4 f3 Qg7 Qe6 Nd7 b8B Bc5 b7 Nb6 Bf4 Rf8 b8B Rf7 d3 Bd2 Rc1 Bdb4 Bh3 Be1 Rf1 Bf2 Bh6 Bg1 Bg3 Bb4 Be1 Ba5 Bd2 Qe5 Bhf8 Qg7 Bfb4 Bd7 Qe7 Bc8 Be6 Bd7 Bb3 Bf5 Ke1 e2 Qe6 Rb7 Bdc3+ Ke3 d4 Rf7 Bd2+ Kd3 Rc2 Rff8 Rc4 Rf7 Ng4 Bh2 Kf2 e1R Kg2 e3 Bbc3 Bg1 Nh2 e2 Rf2 Rf1 f4 e1B Re2 Bef2 Kf3 Re1 Re5 Bh3 Rf5 Re5 Rf6 Rc7 Rf8 Bf5 Kg2 Re7 Qh5 Rf7 Kf3
q1q4B/r2RqRB1/1qbN1r2/1pbQ1p1N/4Q1n1/k1PR1K1p/2pRn2P/8 b - - 0 1 illegal: No proof kernel
1kBB3r/2b5/3pN3/1bBqPPbb/4N3/1p1Qn1KR/5ppn/Q1B1r1Rq b - - 0 1 illegal: No proof kernel
Nn1R2n1/1K6/n1pBnR1P/1bppQ1bQ/q3p3/kq2P3/2r1N3/r2Q1BQ1 b - - 0 1 illegal: No proof kernel
Q3B3/1nQb1K2/pqpP1nrp/3r2R1/N1b2pB1/b1Pq2k1/b1R2N2/NN6 b - - 0 1 legal: proof: e4 e5 a4 g5 f4 b5 axb5 d6 h4 gxh4 b3 Be6 Bb2 exf4 e5 Bd7 e6 Bc8 Be5 dxe5 Ke2 Ke7 Kf3 Kd6 Ke4 f3 Kf5 e4 d4 a6 g4 f6 b4 e3 c3 c6 d5 h6 Kg6 Ke5 g5 Kf4 b6 f2 b5 f5 e7 e2 e8B e1Q b7 h3 b6 h2 Ra2 Qee7 Be2 f1B Nh3+ Kg3 Rg1+ Bg2 Rc2 h1B Bg4 f4 Nf2 Qe1 Kf7 Bd7 g6 Be7 g7 Nf6 g8Q Ba3 d6 Qd2 Qe2 Qd3 Qe7 Qc7 Qgf8 Rg8 Qd8 Rg6 Qg8 Qc8 Qc7 Qd8 Qf8 Rg5 Qh8 Rd5 Qg8 Bf5 Qf8 Nbd7 b8N Nc5 b7 Bc8 Nd7 Rb8 Nb6 Bd7 Na4 Rc8 b8N Nb7 Re1 Bf1 Re5 Bf3 Rg5 Bd1 Rd2 Bb3 Rc2 Ba2 Qh8 Qd2 Qg8 Bfc4 Qf8 Qd3 Qh8 Bf5 Nd7 Rb8 Ndc5 Bd7 Nb3 Rc8 Qb8 Qb6 Na1 Rd8 Qc7 Ra8 Kg7 Rc8 Bf7 Rf8 Be8 Rg8+ Kf7 Rg6 Qf8 Qb2 Qe7 Qb5 Qed8 Qb6 Qa8
QN1b4/R2pp1Q1/1b2nprQ/PKN2r2/1B1k1P2/p4q2/1R2n3/1Qbq1bB1 b - - 0 1 illegal: No proof kernel
QR3N2/N1n1p3/4P1q1/1R1rr2p/qBn4P/1B2kr1b/Rp3RpK/q2Q3n b - - 1 2 legal: proof: g4 a5 b4 axb4 d4 c5 g5 cxd4 g6 fxg6 a3 g5 Bf4 g4 Bg5 Qb6 Bc1 Qd8 Nf3 b5 Bg2 g6 Nbd2 b3 Bh3 b2 Nb1 b4 Bg2 b3 Ng1 Bh6 Bf1 Bf4 Nh3 Bd6 Ng1 Bb4+ axb4 Ba6 Nh3 Bb7 Ng1 Bc8 c4 Kf7 f4 Ke6 Kf2 Kf5 Kg3 Ke4 h4 h5 f5 d5 f6 d3 c5 g5 b5 d2 f7 d4 f8Q d3 e3 Nh6 c6 Qd4 c7 Na6 b6 Nf7 b7 Qa4 b8R Nd6 Bh3 Nc4 Qe1 d1R Ra2 d2 Na3 b1Q Nf3 b2 Nd4 Qa1 Rh2 Rh6 Rb4 Re6 Rf2 Re5 Ne6 Ra7 Kg2 g3 Rb5 g4 Qf3+ Kd3 Nf8 Rb7 Kh1 g2+ Kh2 Rb6 Qh1 Rf6 Qa8 Rf3 e4 Ke3 Qf1 Be6 c8R Nc7 Re8 g1N Reb8 Ne2 Qg1 Ng3 Bf1 Qa6 Bd3 Nh1 Bc2 Bf5 Bb3 Qg6 Qf1 Re1 Qg1 Rd5 e5 Re2 e6 g3+ Kg2 Bg4 Qd1 Bh3+ Kg1 g2 Kh2 Qf5 Rc5 Qg6 Nb5 Kf4 Na7 Ree5 Rcb5 Ke4 Qg1 d1Q Bd2 Qc2 Bb4 Ke3 Ba4 Qb3 Qd1 Qa3 Bc2 Qa4 Bb3
2B2BR1/qr1pKnQn/1pQ2n1p/pP3r1R/N1N1Bq1b/1kr5/P6B/6q1 b - - 0 2 illegal: Other
4Q1b1/1pNN2Qq/1B1B2p1/RP2nNb1/N1p1q1P1/k1Kn2b1/rp3n1R/7q b - - 1 2 legal: proof: c4 d5 h4 dxc4 b4 a5 f4 e5 e3 exf4 h5 f6 h6 a4 Be2 Ra5 Bd3 Rg5 Bc2 Rg6 Bb3 axb3 Rh4 Rg5 Rh5 g6 Rh1 Rd5 Na3 Rd7 Nb1 Rg7 hxg7 Kd7 Qf3 Ke7 Qd1 Ke8 g4 Ke7 a4 Kd6 d4 h5 Kd2 c5 e4 f5 b5 f3 d5 h4 a5 f4 a6 h3 a7 b2 a8N h2 Ra5 c3+ Kd3 c2 Ra1 c4+ Kd2 Kc5 d6 Kb4 e5 f2 e6 f1Q e7 f3 e8Q f2 d7 Bd6 Ra3 Qh3 Rd3 f1Q Rd4 Na6 Nc3 Nh6 g8N Qe7 d8B Be6 Nc7 Nf7 Na4 Ne5 Nh6 Bg8 Nf3 Ka3 Kc3 Nb4 Rd2 Nbd3 Nf5 Qhh7 Rg2 Qg1 Bf4 c1B Bg3 Bg5 Re2 Nb4 Qd4 Nbd3 Bf4 Qa1 Rg1 h1N Rh2 Nhf2 Rd1 Nf7 Qg7 Qe4 Ne5 Qb1 Nd7 Nfe5 Rd2 Qbh1 Rd1 Bh4 Rc1 Bg3 Rg1 Be7 Re1 Bg5 Rd1 Ne1 Rd6 N1d3 Ra6 Be6 Ra7 Rf8 Ra5 Bg8 Na6 Rf6 Bb6 Rc6 Nc7 Rf6 Bd4 Ra6 Bb6 Qhf3 Ndc5 Nc6 Bd6 Ra7 Ra6 Qh1 Kc2 Nce5 Nc3+ Kb4 Ra1 Ra3 Ra2 Rb3 Ra5 Ra3 N3a4 Ra2 Qf6 B3h4 Qg7 Ka3 Kc3 Bg3 Nd7+
RR3BN1/1pQ3K1/1B1Q4/2q1pB2/1PP1Bnb1/nkN2pb1/r1n1p2b/1b5b b - - 0 1 illegal: No proof kernel
1nk1bbKb/3r1ppp/1pQqB3/1NR3R1/N7/Q1P1B3/r2r1rP1/2Q1Q1r1 b - - 0 1 illegal: Other
1b6/NBRpn1q1/6kB/NK1pQp2/1RrQ3p/2N1r1r1/bP1r1P2/1r1Nq3 b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 d4 bxa4 d5 c6 Ne2 cxd5 Ng1 Nc6 Be3 Ne5 Bc1 Ng4 e5 f5 Ba6 N8f6 exf6 Nh6 Bf1 Ng8 Ke2 Kf7 Kd3 a5 c4 h5 g4 e5 c5 a3 c6 h3 g5 a4 c7 a2 Nf3 a3 Qe1 e4+ Kc3 e3 Nh2 e2 Ng4 h2 Ne3 h4 Nd1 Ba6 c8N Bc4 Na7 Ne7 Kb4 Kg6 f7 Rg8 Nbc3 Rc8 Be3 Bg7 f8Q Be5 Ka4 Bb3+ Kb5 Rc4 Rg1 h1Q Rg4 Qg2 Rc1 a1R Re4 Rg7 Qh8 a2 Qd2 e1R Qd4 Rg8 Rg4 Bh2 Qhe5 Rb1 Rc2 a1R Rc1 Kh5 g6 Ba2 g7 Qe8 Bh6 Re2 Rf4 Rd2 Be2+ Kg6 Bd3 Rf8 g8N Qg1 Rc2 Qf7 Bf1 Re8 Re4 Qg7 Bd3 Nc8 Rc1 Qe1 Ne7+ Kf7 Nec6 Ne7 Na5 Kg6 Qf4 Rg8 Qfe3 Bb8 Qe5 Rc6 Rb4 Rc4 Q3d4 Rc5+ Kb6 Qf8 Ncb5 Kf7 Nbc3 Bb3 Ne4 Rg3 N7c6 Kg6 Ba6 Qg7 Bb7 Ra3 Na7 Ba2 Ka6 Rcc3 Kb5 Rce3 Rcc4 Rac3 Rc7 Rc4 Nec3
2b1Q3/N2Bq1p1/b1r5/1nn3PQ/3pBpR1/1RB2B1N/kP1p3b/q3nK1n b - - 0 1 illegal: No proof kernel
R1KNk1b1/1p1Rr2p/n1BrBp2/8/q4P1P/1qR5/rp2rR2/bN2bQQ1 b - - 0 2 legal: proof: d4 c5 e4 cxd4 b4 d5 b5 d3 b6 d4 Qg4 axb6 Qe2 b5 Qd1 b4 f3 g5 Nc3 g4 Be3 g3 Bf2 gxf2+ Kd2 Nd7 Nb1 Ndf6 Be2 Qd7 Bf1 Nd5 exd5 Qd8 h4 e5 g4 f6 a4 b3 c4 e4 d6 Ra5 d7+ Ke7 f4 Ra7 g5 Nh6 c5 Qe8 d8R Bd7 a5 Nf5 a6 Ng3 g6 Be6 g7 Bg8 Ra2 Qa4 Rd7+ Ke8 c6 Bd6 c7 Be5 Bg2 f1R c8B Re1 Nh3 Re3 Ng5 Re2+ Kc1 e3 Ne6 d2+ Kb2 Ra8 a7 Ne4 Qf1 Nc5 Rh3 Na6 Nd8 d1Q+ Nd2 Qb5 Ka3 d3 Bc6 Ba1 Nb1 d2 Rf3 Qd3 Ka4 b2+ Ka5 Q3c2 Kb6 Qa4 Rf2 Qdc2 Ra3 d1R Rc3 Rd6 Rh2 Red2 Rf2 e2 Rc5 e1B Rc3 Rb8 a8R Qcb3+ Ka7 Re2 Rcf3 Be6 Rc3 Rf8 g8Q Bc4 Qd5 Rf7 Qdg2 Rfe7 Qgg1 Bg8 Rc7+ Kf8 Be6 Rc8 Rd7 Ke8 Bcd5 Rc5 Be4 Ra5 Bc6 Nc7+ Kb8 Na6+ Kc8 Qab5 Be4 Ra2 Bh1 Q5a4 Bc6
k1r5/pbn3p1/5pBp/N1BnR2n/6bP/n3PRR1/rb2K1R1/1QNQ2b1 b - - 0 1 legal: proof: f4 b5 g4 e5 a4 bxa4 d4 c5 g5 cxd4 g6 Ke7 Bd2 Qe8 Be3 f6 Bc1 Qf7 gxf7 exf4 c4 Kd6 b4 Kc7 c5 Kb7 b5 d5 h3 d3 b6 d4 Kf2 a3 Qc2 a2 Ba3 d2 Qd1 f3 Bb4 d3 Rh2 Ne7 Na3 Nd5 Rg2 Na6 Nc4 Nac7 c6+ Kb8 Na5 Bb7 Rc1 a1B Bc5 Bb2 Rc3 Bd6 Ra3 Bh2 h4 h6 Rc3 Re8 f8R Rc8 Re8 Rd8 Qc1 d1B Re5 d2 Rg3 Re8 Bh3 Re6 Bf5 Rd6 Kf1 f2 Rcf3 Rd8 e3 Rd7 Rf4 Bg4 Ne2 d1N Bg6 Bg1 Rff3 N1c3 Qd1 N3b5 Nc1 Na3 Ke2 f1N Rh3 Bc8 b7 Ng3+ Ke1 Nh5 Ke2 Nb4 Rg3 Rd4 Qd2 Nbd5 Qd1 Na6 Rf5 Ra4 Re5 Kc7 b8R Bb7 Rd8 Rc8 Rd7+ Kb8 c7+ Ka8 Rd6 Ne7 Rd2 Nd5 Rc2 Rb8 c8Q Nac7 Qf5 Rc8 Qe4 Nc4 Rd2 Ra2 Qb1 Na3 Ke1 Re8 Rdg2 Rc8 Ke2
2N3r1/2N3P1/p1rR1B1k/pNP1pn1n/1p6/3p4/K1BQqQ2/1rbbnNR1 b - - 0 1 illegal: No proof kernel
1RB5/2p2p1b/NqN1RP1n/p3b1p1/bR1P1Qr1/p2Q4/2rn1K2/1rB2R1k b - - 0 1 illegal: No possible last move, all moves rejected
3R1KN1/4P1p1/1p1rQ1P1/1qpb4/Npp1R1b1/kBq3nn/3B1Q1R/R3b1n1 b - - 0 1 illegal: No proof kernel
4QB1Q/2b3R1/1B3p2/bK2p2n/1p3p2/NqqpPrRR/2nPq3/1NR2k1b b - - 1 2 illegal: No possible last move
2kB2K1/5R2/b1p2r1b/n1PPqQQQ/1npn4/1b1B2Qp/1N2R1pp/4N2q b - - 0 1 illegal: No proof kernel
BQbr4/2P1p2p/3BB1BK/1r1pb1QP/1R3p1q/1p1r3b/nN3RN1/2k4q b - - 0 1 legal: proof: e4 a5 d4 g5 f4 gxf4 b4 axb4 e5 d5 Be2 Nd7 Bf1 Ndf6 Be2 Ne4 Bf1 Nd6 exd6 c5 Ke2 cxd4 Kf2 Ra5 Ke1 Ra8 Kd2 Kd7 h4 Kc6 g4 Kc5 c4 f5 a4 b5 d7 d3 a5 Kd4 c5 b3 g5 f3 c6 f2 c7 b4 a6 b2 g6 b3 h5 Nh6 a7 Bb7 g7 Ng8 Nc3 b1Q Ba3 Qc8 d8Q Rb8 a8B Nf6 g8B Bg7 Rh2 f4 Bd6 Qf5 Na4 Qh3 Qg4 Qh4 Qg5 Bc8 Be6 Rb5 Nb2 Rg8 Be2 f1B Rf2 Bh3 Nf3+ Ke4 Qf8 Qh1 Ne1 Kd4 Kd1 Ke3 Ra4 d2 Bd3 Ne4 Rb4 Be5 Bb1 Ng3 Qd8 Ne2 Bg6 Nc1 Qf8 Na2 Qe8 Bd7 Qb8 Rd8 Na4 Qe4 Ng2+ Kd3 Nb2+ Kc3 Bc5 Bc8 Bd6 Qb1+ Ke2 Qh1 Kf3 d1R Rf1 Kd2 Rf2+ Kc1 Bef7 Bhd7 Be6 Q4h2 Kg4 Rd3 Qf5 Qh3+ Kg5 Q3h2 Kh6 Qh4 Bef7 Be6 Qg5 Bh3 Be6
1RN5/pNb4Q/pp1n3K/bN1rkN1B/1P1q1R2/Pp2Q2B/bq2p1n1/6n1 b - - 0 2 illegal: Other
b1r1n2R/3ppn2/1rn2p1p/2P3nq/R2PN1RB/2r2QQ1/B4K1p/R1k1N3 b - - 0 1 illegal: No proof kernel
5RN1/2prp1pb/Q1PkPQ2/7r/1q3B1q/Qr3p1p/BnRr4/1Q3KNn b - - 1 2 illegal: No proof kernel forced: wxDB
rN2Q3/1K1pnp2/1NnPqP1b/2rNnnQB/1krb1n2/2R5/3qR3/3bB2N b - - 0 1 illegal: No proof kernel
br6/1Q4Q1/1q1p1p1N/3N1B1b/nB3P2/K1R3b1/1RrPnk1B/nbbB1q1q b - - 0 1 illegal: No proof kernel
b2bQ3/1R6/p2QnN1N/3Bnnkr/B2pn2r/nB1Pr3/P2R2q1/B2K1n1b b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 b5 h5 bxc4 h6 gxh6 Rh3 h5 Rh1 h4 e4 Ke7 b4 Kf6 g4 d5 e5+ Kg5 e6 f5 e7 h5 e8B c5 d3 d4 b5 c3 b6 c4 b7 a6 Qa4 h3 Qb4 c2 Kd2 h4 Qb3 h2 Ke2 c3 Bb5 h3 Qa3 Rh4 Qb3 Nd7 b8Q Bb7 Qf7 Ne7 Bc6 Ne5 Qe6 Qd5 Na3 Qg2+ Ke1 Ra7 Ne2 Ba8 Be3 c1N Qb5 c2 Kd2 Nb3+ Ke1 c1N Nb1 Nc5 Kd1 N1b3 Bc1 Nd2 Nbc3 f3 Bb2 f2 Nd5 f4 Rb1 f3 Nf6 Nf5 Ba1 Re7 Qd6 Nde4 Ng3 Ne6 Rb2 Re8 Rd2 Be7 Be2 f1N Bd5 f2 Qa4 Rf8 Qe8 Bd8 Rg1 h1B Bb3 Ne7 Nf5 h2 Nh6 Nf5 Bf3 Rf7 Bc2 Re7 Ba4 Kf4 g5 N1e3+ Kc1 f1N g6 Nc4 g7 Na3 g8B Kg5 Kd1 N4c5 Bb7 Ne4 Bd5 Rh7 Nhg4 R7h5 Nh6 Rh3 Bf7 Re3 Bdb3 Nf8 Bfc4 Ne6 Bd5 N1g3 Re1 Nf1 Bbc4 Qf2 Kc1 Bf3 Red1 h1R Rb2 Qg3 Rb7 R1h4 Rd2 Bh1 Kd1 Qg2 Bcb3
1KQn1N1Q/3p3n/1brn1n2/Bb1NR3/2qP1p2/5Pk1/2rRrB2/2bBb1Bb b - - 0 1 illegal: No proof kernel
2kR4/RNn5/1qnq1r1p/2qrq3/KQ2qQp1/4B1PN/1R1rq2P/R2Bbb2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 exf6 Nd2 f5 Nb1 f4 Kd2 f5 a4 g5 e4 b5 c4 d5 Kc2 Kd7 Kb3 f3 c5 f4 a5 g4 e5 h6 g3 f2 a6 f3 a7 d3 Bd2 d4 Na3 Qe8 Nc4 Ba6 c6+ Kc8 e6 Nf6 c7 Nc6 e7 Nd5 Bc1 d2 Ra5 d3 Qe1 d1Q+ Ka2 d2 Kb2 b3 Ka3 b4+ Ka4 Qe2 Ba3 d1Q Qd2 b2+ Qc2 b1Q Rc5 b3 Nh3 b2 Qb3 Qbe4 Rb5 b1Q Bc1 Qdd4 Qc3 Qc5 Qb4 Q8g6 Rg1 Qgd6 Na5 Rg8 Rb7 Rg5 Be3 Qbe1 Bg2 f1Q Rb5 f2 Bf3 Qg2 Nb7 f1R Rb6 Rb8 a8R Qgf2 Ra7 Qec3 Rb5 Qce5 Rh1 Bg7 Rb6 Bf6 e8Q+ Bd8 Qf7 Qg1 Bg2 Rf6 Bf3 Bd3 Rb5 Qb6 Qf8 Qc1 Rd1 Qcc5 Ra1 Qd1+ Ka3 Qa6+ Na5 Rfg6 Qf4 Kd7 c8R+ Rb7 Rca8 Rf6 Rb8 Qf1 Ka4 Qe8 Qd4 Qg2 Rbb1 Bf1 Bd1 Qge2 Raa8 Rb2 Rb6 Q8e6 Ra7+ Kc8 Rbb7 Rh5 Rd7 Qb7 Nc4 Ba5 Ra3 Nc7 Raa1 Be1 Na5 Rd5 Qb4 Rbd2 Rb2 Qbb6 Nb7 Qe6e5 Rd8+
5Nnk/1bn1q2r/1RQ1rbpN/nNpN3q/2R1n3/B1P3Pr/3qB1K1/r3Q3 b - - 0 1 illegal: No proof kernel
1n3RrR/K1Q1pBbb/Q1pQ3N/1b1n2k1/N3P1p1/1q2BQP1/6rn/4b1rb b - - 0 1 illegal: No proof kernel
1k1Qb2r/qp1nQr1N/p1R1q2B/Q1q3pn/2N3P1/1P2q3/1qn2b2/2QR1B1K b - - 0 1 illegal: No proof kernel
b3BbN1/1kRqqp1K/3qp2b/1b2B3/3B1P2/1n2rNpB/2Qn1rPQ/3r2R1 b - - 0 1 illegal: No proof kernel
q3qqNN/1B1p4/1k1b2qr/1Q4Bp/bR2p3/4r1nr/b1B1PB1P/2RQ2Kn b - - 0 1 illegal: No possible last move
nbB3n1/5N1p/rb4pN/rb2RnbP/p1n3q1/PQ1Qbk2/3Q2Q1/K1BR4 b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 c5 fxg4 c6 bxc6 Ba6 c5 Bf1 c4 b4 Kd7 d4 Kc6 Kd2 Kd5 Kc3 a5 Kb2 c5 f4 e5 h4 g6 a3 e3 h5 Ke4 b5 a4 d5 c3+ Ka2 c2 b6 g3 d6 c4 f5 g2 b7 e2 f6 e1N d7 c3 f7 Nf3 Ba6 Qg5 d8Q Nh4 Be2 Na6 b8Q Nf5 Q1d2 Qg4 Bb2 c1B Qf6 c2 Qbd6 Bd7 Qg7 Bb5 Nf3 g1B Nh2 Bb6 Re1 Nc7 Qd8 Bfc5 f8Q Ra6 Qff7 Bd6 Qb3 Na8 Qa7 Bb8 Qb7+ Bc6 Q2d3+ Kf4 Rd1 e4 Nc3 e3 Ne4 Bb5 Ng5 Bd2 Qg2 c1B Bf1 e2 Nf7 e1N Rb1 Bde3 Ka1 Bcd2 Bc1 Nf3 Rb2 Ra5 Rc2 Ra6 Rc5 Ne5 Q8d7 Nc4 Re5 Bb4 Qdd2 Be7 Q7d3 Bg5 Be2 Qh4 Ng4 Qh3 Ngh6 Qg4 Qg1 Ra5 Bf1 Kf3 Bh3 Nf6 Qba2 Rd8 Qgh2 Ng8 Qab3 Rd6 Qhg2+ Kf4 Qbc2 Nh4 Qb4 Qf5 Qcc3 B6c7 Rh1 Rda6 Qcb2 Bb6 Q4b3 Qe4 Be6 Nf5 Rd1 Qf3 Bc8 Qg4 Qb7 Kg3 Qbd2 Kf4 Qh1 Kg3 Qg1+ Kf3 Qgg2+
b2b4/1k5p/1nr1q1N1/1p2bRbq/1b4pP/rBB3PQ/n2bB1KR/1B4QN b - - 0 1 illegal: No proof kernel
1Q2QB2/1p1p4/bNb2nrb/1q1Rq3/n6B/RBr1kp2/1P1Pb1b1/KB2N2b b - - 0 1 illegal: Other
N3QNn1/b1pn1p1r/2p5/1Bqk3b/1Rr1bB2/4rN1n/1nPK1P1R/b1N2Q2 b - - 0 1 illegal: No proof kernel
K1bn1B1B/1Nb4r/kb5r/pqb3pq/P1rnp2Q/3B3N/2B1P1R1/Q1r2R2 b - - 0 1 illegal: No proof kernel
n1KQ4/b2R4/1N2q2p/n3qr1b/n1b2N1Q/1Bp1pbBP/k1P2Qn1/3RQr2 b - - 0 1 illegal: No possible last move
1QqQ2K1/n1rbBB1n/pb2pb1r/2rqpBN1/3pPB2/P7/1k4q1/1R2N2R b - - 0 1 illegal: No proof kernel
4QB2/n1N2pbp/3q2qP/1b1qb2r/R1pk1n2/Qpr2P2/1R2BKn1/2B3NB b - - 0 1 illegal: No proof kernel
1QrNb1Q1/2B1R3/Nn4Bp/R2rp1BK/2pn3b/2P1n2P/r1kp3b/q4bB1 b - - 0 1 illegal: No proof kernel
nN1KQ3/2N1p2n/1Q1R1rb1/2b1b3/1Bn2Q1b/p4prp/2R1PkBP/4Qq1r b - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 g5 a5 gxf4 a6 bxa6 Ra3 a5 Ra1 a4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 a5 d3 f5 g5 c3 b3 h4 g6 f3 g7 c2 Bg2 f4 Qd2 a3 Bb2 c1B Nh3 a2 Qd1 f2 Rf1 f3 Nc3 a4 Nd5 a3 Ne3 Nd7+ Ke6 Rh6+ Kf7 Ngf6 g8Q Bg7 Re1 f1N Qe8 Nh7 Ng4 Nb6 Ne5 Ne3 Nc6 Bf5 Bc3 Be5 Nf4 h3 Nb8 Nec4 Bb4+ Kd4 Ne6+ Ke3 d4 c5 d5 Kf2 d6 Be3 Rc1 a1R Nc7 Bg6+ Ke6 Ra4 d7 Na8 Rc2 Bg5 Qb1 Bh4 Rd1 Ra6+ Rd6 Rb6 Qa2 Rh1 Qb1 Rh5 Qd1 Rg5 Qa1 Qc8 Qc3 Qb7 d8Q Rg3 Kd7 Qd5 Kc8 Qd1 Qd2 Qf1 Qf4 Qe1 Qdd7 Qf1 Kd8 Na5 Qdf5 c4 Qd2 c3 Qff4 Nc4 Qe1+ Kg1 Ba5 Ra6 b4 Rc6 b5 Rb6 Rb2 c2 Bb4 c1B Rc2 Rc6 b6 Be3 b7 Bc5 Nd7 Ra6 b8Q Rb6 Qb7 Ra6 Nb8 Rb6 Qed2 Rc6 Qb6 Kf2 Rd7 Re6 Rd6 Rf6 Qe1+
K2R1rQn/1Nk1b2p/1pQNp1R1/1r2P3/2n2p1q/b2r1bQ1/1B3QBP/r5n1 b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 g5 b5 gxf4 b6 axb6 Na3 b5 Nb1 b4 Kf2 Kd7 Kf3 f5 d4 c5 g4 c3 e4 b6 a4 b3 g5 b2 d5 c2 g6 c4 e5 c3 d6 Nf6 g7 Qc7 g8Q Qc4 a5 Nh5 a6 Nc6 a7 Na5 Na3 b1R Qg3 Rb5 Bb2 c1B Nh3 c2 Ng5 Bb7+ Ne4 Rd8 a8Q Kc6 d7 Kc7 Qde1 e6 Bg2 Bb4 Rg1 Be7 Qef2 Rhf8 Rd1 Qb4 Ke2 f3+ Kd3 Nc4 Nc5 Nf4+ Kd4 Be4 Nb7 Ng6 Qa4 Nh8 Rd3 Bh6 Rg1 c1N Qac2 f4 Qa4 Qe1 Qa8 Nd2 Nc4 Bd5 Ncd6 Nc4 Ne4 Ba3 Ned6 Bg5 Rd1 Ne2+ Kd3 Rb8 Qa4 Be7 d8Q+ Kc6 Qe8+ Kc7 Qf7 Rbd8 Qfg8 Rc5 Qe8 Rb5 Qc6+ Kb8 Qfc5 f2 Rd2 f1R Qcf2 Nc1+ Kc3 Bf3 Kd4 Rd5+ Kc3 Ne2+ Kb3 Rd3+ Ka4 Rd7 Kb5 Rd5+ Ka6 Rb5 Qe4 Kc7 Ka7 Rdd8 Nc8 Rd3 Ka8 Rdb3 Rd8 Rd3 Qfd4 Qf2 Ncd6 Ra1 Qde3 Qe1 Qef2 Qf1 Bh1 Qh3 Bg2 Qh4 Qh3 Rc1 Bh1 Ra1 Rg6 Ng3 Bg2 Ne2 Qhg3 Ng1 Qc6+
1q4QB/RB1pp2b/RR1r1rNp/r1NPR2Q/r3P1K1/1kr3p1/n2n4/2q1b3 b - - 0 1 illegal: No possible last move
kb3q2/R1QnpBpK/6PN/pn2P1Q1/1Bq3n1/1r1N2Rb/n2R2qp/4R1r1 b - - 0 1 illegal: Other
3Q3q/1q1rrn1b/2Q3Qp/RN2RBQ1/pp1p3K/Pr5P/NbbB3k/2b4n b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 c5 g5 cxb4 g6 fxg6 Bd2 g5 Bc1 g4 e4 Kf7 c4 Kf6 f4 g5 Kf2 d5 Kg3 a5 f5 Ke5 f6 b5 a3 h6 h3 b3 c5 a4 f7 b2 c6 b4 c7 d3 Qb3 d2 Ba6 d1B Be2 Rh7 Qe3 Nf6 Qd3 Ra7 Bf3 Nbd7 Qf1 Nh5+ Kf2 g3+ Kg2 g4 Ra2 Bc2 Be3 Bg7 Nc3 b1R f8Q Rb3 Qb5 Rb7 Qfc5 Qh8 Qbc6 Bf6 Bd2 Re7 Nb5 Ra7 Be1 Kf4 e5 Bb7 e6 Bb2 c8Q d4 Bd5 Ne5 Be4 Nf7 Bf5 Ba8 Qd8 Rad7 Ra1 Bb7 Rc1 Ba8 Kf1 g2+ Kf2 Ng3 Bc3 Bb7 Re1 Bc8 Re5 Bb7 Nf3 Ba6 Nd2 g1B+ Kg2 Bb7 Ne4 Be3 Re1 Nh1 Bd2 g3 Nec3 Ba8 Na2 Bb7 Kf1 g2+ Ke2 Kg3 Rg1 Kh2 Kf3 Nd6 Kg4 Nf7 Kh4 Ba8 Re1 g1Q Rf1 Qgg7 Rf3 Re8 e7 Qg2 Qg6 Bae4 Rg3 Bed3 Rg5 Qb7 Rh5 Bf4 Qcc6 Be3 Qg5 Bf4 Be6 Bh7 Bf5 Rg8 e8Q Rg7 Bc3 Bfc1 Bd2 Nd6 Qe6 Rge7 Qeg6 Nf7 Qe3 Rd6 Be6 Qa8 Reg5 Ng3 Na7 Qb7 Ra5 Bc3 Nb5 Rdd7 Re5 Nh1 Bf5 B3b2 Qeg5
n2br3/Rrnp1Q1p/1R2b1Nk/qqpP1R2/3B1Kn1/1n1r4/N3B1pP/1RQ5 b - - 0 1 illegal: No proof kernel
n2r1N1r/1RNn2pp/2R1pbR1/1K1BP3/pnr1q1n1/1k1Q3r/4QRP1/Bb6 b - - 0 1 illegal: No proof kernel
N5r1/1r2B2K/1p3B2/nQp5/BPnbkp1R/1q2ppN1/B1P2b1Q/1n1bRr2 b - - 0 1 illegal: No proof kernel
bb4nN/3B3K/4r1pp/p1p1NkQ1/3BR1rn/2P2r2/2n1NpP1/qR1NQb2 b - - 0 1 illegal: No proof kernel
BrN4b/1pp1prR1/1B2Qq1p/2r5/1P2R1bP/K2k1QR1/3n1n1p/3qn1RN b - - 0 1 illegal: No possible last move
2bnRB2/Nn2p1q1/2p3rq/B3bp2/p1Pqr2p/k2bB1RQ/2N1P2Q/3B1K2 b - - 0 1 illegal: No proof kernel
b1k5/1Qqr1RQ1/n2pBpb1/b1N1Brp1/1Q3rP1/1nQ1p1Rp/N2b1P2/7K b - - 0 1 illegal: No proof kernel
4r2B/1rqR1ppn/R1qbp1PR/3pQ3/B3NN1n/Q5Rp/3Pk3/K2b1nn1 b - - 0 1 illegal: No proof kernel
2N2Q2/b1r2pBr/3R2Nn/pB2p1BR/1pp2P1q/P6b/1k1Kp2b/Qb2n2B b - - 0 1 illegal: No possible last move
2bq2k1/2N2Q2/NPnPN3/1rr1B2K/Q2n3b/4q2q/3nRrRQ/3qR3 b - - 0 1 illegal: No possible last move
3b3K/PN1q2QP/r2rB1rQ/4N1b1/nqn5/Nn4QR/4n2B/2kB2r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h6 cxd5 h5 d3 c5 Bh6 c4 Bf4 c3 Bc1 hxg4 a4 Bd7 Ra2 Bb5 Ra3 Bc4 dxc4 bxa3 Ke2 Kd7 Ke3 Kd6 Kd4 b5 h4 e5+ Ke4 Kc5 f4 Kb4 d6 g5 c5 c2 d7 Kb3 f6 g3 Kf5 a2 Kg6 a1N f5 g2 c6 g4 h5 g3 c7 e4 c8B e3 f7 b4 h6 e2 a5 e1Q a6 Nf6 h7 Ne4 f6 Nc3 Rh6 Rg8+ Kf5 Na4 Rh3 Nc6 Bg5 Kb2 Be3 c1B Na3 b3 Bf4 Be7 f8Q Na5 f7 Nc4 Be2 Qb4 Qh6 Rg6 Nf3 g1R f8Q g2 Bh2 Bcg5 Qd6 Kc1 Qfg7 b2 Bd1 b1R Qg3 Nb3 Ne5 Qc7 d8N Qd7+ Ke4 Rd6 Nb7 Bd8 a7 Ra1 Qe6 Ra2 Kf5 Rb8 Kg6 Ra1 Nc5 Rbb6 Nb7 Ra6 Qe7 Ra2 Kg7 Rf2 Qh6 Rff6 Kh8 Rg6 Bh5 Rgd1 Qf6 g1N Qfg7 Rf1 Bd1 Ne2 Qf3 Rg1 Qg3 Qdb5 Bf5 Qd7 Be6
2NnR3/1BR4r/R1q5/r1NbQ2P/2n1rP1N/1pn2p2/2bk3n/Q2Q3K b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 f5 e3 f3 Be2 f4 Bf1 Bd6 Ba3 f2+ Ke2 bxa3 Kd3 f3 Kc2 Na6 Kc1 Bf4 exf4 Nb8 d4 Kd7 Kd2 Kd6 Ke3 b5 h4 g5 h6 c5 a5 c4 a6 c3 h5 c2 a7 c1N h7 a2 Rh3 g4 Na3 b4 Rh2 b3 Ba6 f1B Kf2 Bc4 Rh1 Bf5 Ne2 g3+ Kg1 g2 Ng3 Qf6 Bb7 Nc6 Kh2 Rc8 a8Q g1N Qa7 Nge2 Nb5+ Kd7 d6 Ke6 d7 Kd5 d8N Nc3 Qa6 Nh6 Ne6 Bc2 Nf5 Ke4 d5 Rce8 d6 Bd5 d7 Nd8 Na7 Nd3 Nh4 Ke3 Nc5 Re4 Nc8 Ne5 Qd6 Nc4 Qe5 Qd6 Rg1 Qa6 Kh1 Qc6 Rg7 Ng4 Rf7 Nh2 Re7 Rg8 h8Q Rg7 Re8 Rh7 Rc1 Nf7 d8R a1R Rd6 Nd8 Rde6 Ra5 Qhf6 Qc7 Rc6 Qd6 Ra1 Qe6 Rc7 Qc6 Ra3 Rb5 Ra6 Ra5 Qa1 Kd2 Qg7 Nf1 Qg1 Nh2 Qgd1+
BqB5/P7/2pR2rb/2n1KN2/nprBQ2k/Q1Q1b2N/2Pn4/rN4n1 b - - 0 1 illegal: No possible last move
2K2nk1/qn2p2n/1N2nB1b/2p2Pn1/nQ6/1b3PQ1/2N3RQ/R1Nq2R1 b - - 0 1 legal: proof: c4 a5 h4 d5 b4 dxc4 a3 g5 a4 b5 axb5 gxh4 Ra3 a4 Ra2 Ba6 Ra1 Bc8 e3 f5 f3 h5 Bd3 Ra5 Be4 fxe4 bxa5 Rh6 Kf1 Rf6 Ke1 Rf4 exf4 Ba6 Ke2 Bb7 Ke1 Bc8 Ke2 Kf7 Ke3 c5 d4 h3 g4 h4 f5 a3 Kf4 e3 Ke5 c3 a6 h2 d5 a2 d6 c2 d7 h3 g5 e2 b6 e1N b7 Qa5 d8R Be6 a7 Ng2 a8N Bh6 Rd2 Nf6 g6+ Kg8 g7 Nf4 Qe2 Bb3 Qg2 Nh7 Nc7 Qa7 Qg4 Ne6 Bb2 c1N Qb4 Ne2 Na3 Nc3 Ne2 Na4 Rhg1 h1Q Nc1 h2 Na8 Nd7+ Ke4 Bd1 Kd5 Ndf8 Kc6 Bc2 b8Q Bb3 Rg3 Qe1 Rdg2 h1N Nc2 Qd1 Bf6 Nf2 Nb6 Nh3 Rg1 N3g5 R3g2 Qa5 Kb7 Qa8+ Kc8 Qa7 Rb1 a1N Qc7 Nd8 Qh2 Nb7 Na3 Nc2 Ra1 Nd4 Nc2 Kf7 Qg3 Nde6 g8Q+ Ke8 Qh8 Kf7 Bb2 Qa5 Qhe5 Kg8 Qd6 Qa7 Bf6 Qe2 Qh2 Qd1 Qdg3
K2bQ3/R1pbnN2/P1k5/p1Np3P/5nQ1/qB1nQ1r1/8/q1q1BBN1 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 h4 a4 h3 b5 Nh6 a5 Nf7 b6 axb6 a6 Nh6 gxh3 Ra7 h4 Ng8 h5 Ra8 c4 e5 d4 e4 Ra5 bxa5 Bd3 b5 Bf1 bxc4 Nd2 Rh6 Nb1 Re6 Qb3 Re5 dxe5 Ra7 Qd1 Rb7 Bd2 Rb6 Be3 Rh6 Bc1 Rh8 h6 d5 Nh3 Kd7 Ke2 g5 Ke3 c3 Kd4 e3 f4 g4 f6 e2 h7 e1Q e6+ Kd6 f7 g3 e7 c2 e8B g2 f5 g1N f6 Be6 Nc3 Bf5 Bg2 Qe2 Bd2 c1Q Ba4 Qde8 Ne4+ Ke6 Qe1 Bh6 f8Q Qd7 f7 Qb2+ Kc5 Qf1 Qg7 Bg6 f8Q Be8 Qe3 Nc6 Qg4+ Ke5 Bc2 Qg7 Ba4 Bd7 Qe8+ Be6 Bc2 Nb4 Ba4 Nd3+ Kc6 Qa2 Kb7 Bg5 Ka8 Ne2 Nc5+ Kd6 Rg1 Qd1 Rf1 Qga1 Ng1 Nef4 h4 Qdc2 Rb1 Qa3 Be1 Qcc1 Rb7 Bd7 Ra7 Bd8 Bb3 Kc6 Bf1 Ne7 h5 Nf5 Qgg3 Rg8 h8N Ne7 Nf7 Rg6 Qh4 Rg3 Qg4
b1Nrn2b/1Q2BQ2/QP3P2/4K3/1N1NbB1n/1Rn4n/nr1Bq1r1/3kq3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 b4 h6 g4 Kd7 f5 Ke8 Be2 Bg7 Ra3 Bf8 Rf3 h5 Rf4 gxf4 g5 Bb7 Bf3 Bc8 Bg4 hxg4 Ke2 Kf7 h4 e5 d4 c5 d6 a5 g6+ Kf6 h5 Kg5 b6 a4 h6 c4 b5 e3 f6 g3 Kf3 c3 Ke4 e2 g7 Kg4 h7 a3 b7 f3 d7 e1N d5 a2 b6 a1R d6 g2 Na3 c2 Nb5 R8a2 Rh5 Rb2 Bh6 c1N Nd4 Qe7 d8Q Bf5+ Kd5 e4 d7 e3 Qd3 f2 Qc8 f1B d8Q e2 Qcc3 Na6 b8B Nc7+ Kc6 Nf3 Nh3 g1N Qc8 Bg2 Nf4 Na2 Nd5 Nh3 Qb3 Nh4 Qda6 Rg1 Bd2 e1Q Qd7 Q7e3 Qe7 Kg3 Kd6 Kf2 Rg5 Bg6 Nb4 Ba8 Qf7 Rg2 Rg3 Qe4 Ra3 Qf3 Rb3 Bge4 Ke5 Qg4 Qd7 Ne7 g8N Qf3 Kd6 Ned5+ Ne7 Bg7 Nc8 Rd8 h8B Ne8+ Ke6 Ndc3 Qdb7 Qd3 Bbf4 Qdf1 Ke5 Qc4 Ndc2 Ke2 Nd4+ Kd1 Ndc2 Bf8 Bg7 Qce2 Bgh6 Bg7 Nd4 Bh8 Bf8 Nf5 Bc5 Nh4 Be7
2r3b1/k1B2R2/r1rqNn2/5QRP/2PqQrnn/1r2R3/n1Q2n1N/2N1K3 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Qd1 f4 Ng1 f3 Bh3 Bd6 Bg4 Bf4+ gxf4 hxg4 h4 f1R e4 g5 b4 d5 c4 Kd7 b6 Kc6 b7 Kb6 b5 a5 e5 d3 f5 a4 e6 g3 f6 d4 h5 g2 f7 a3 f8Q a2 e7 f2 e8R g4 Ba3 g3 Re6+ Ka7 Qf7 Qd6 Qe7 Nf6 Nf3 g1N Bc1 g2 Nc3 Nc6 Ne4 Ne5 Qc2 Rh6 Nc3 Neg4 Re3 Be6 Re5 Bg8 Ne2 Rc8 Rh3 Rg6 Ba3 Rb1 Nc1 f1R Nh2 Rb3 Rg5 Rf4 Re3 Nf3+ Kd1 g1N Qe4 d2 b8N Nh4 Nd7 Nh3 Nc5 Nhf2+ Ke2 d1N Ne6 d3+ Ke1 Qd4 Bd6 Nc3 Bc7 Qd6 Rb1 a1R Qf5 Na2 b6+ Ka8 b7+ Ka7 Kf1 d2 b8Q+ Ka6 Qb4 d1Q+ Qe1 Q1d4 Qee2 Ka7 Ke1 Nc3 Qed3 Ra6 Qde4 Na2 Rf3 Rbb6 Rbb3 Rc6 Rbe3 Rg7 Ba5 Rb7 Bc7 Rb2 Rg7 Rb4 Rg3 Rb3 Rf7 Ne5 Rgg7 Neg4 Rg5
1Q1Qrnb1/7n/1Q1PN3/1RRKbk2/1R2r1N1/2P3rb/n1bNbBb1/n7 b - - 0 1 legal: proof: e4 c5 h4 b5 a4 g5 axb5 gxh4 d4 cxd4 Be3 f5 Bc1 d5 Be2 d3 Bg4 d4 Bf3 Qd5 exd5 Na6 Be4 fxe4 Ra4 Nb8 Ra5 Bf5 Ra1 Bc8 Kd2 Kd7 b4 a5 g4 h5 f4 e5 f5 h3 f6 e3+ Ke1 d2+ Ke2 h2 Kf3 e4+ Kf4 h4 Ke5 e2 g5 e1R d6 h3 b6 a4 g6 a3 g7 d3 b7 a2 c3 e3 f7 e2 b5 Nf6 g8R Bg7 f8Q Nh7+ Ke4 Ke6 b6 Nd7 b8N Be5 Rg2 Rg8 b7 Rg3 Qa4 d1B Qa7 d2 Qh8 Ndf8 Nc6 Rb8 Nf3 Bc2+ Ke3 d1B Nd8+ Kf5 Qb6 Bd7 Ne6 Re8 b8Q Bc8 Rhg1 h1B Nd2 h2 Rb1 a1N Rb4 Bd7 Rf2 Bg2 Qg8 h1B Q8d8 Bf4+ Kd4 Be5+ Kd5 Bh3 Ba3 B1g2 Rb5 Bc8 Bc5 Bd7 Rff1 Bc8 Bf2 Bb7+ Kc5 Bd5 Nh2 Ba2 Qh8 Bab3 Ng4 Bc4 Nc7 Bg8 Ne6 Nb3+ Kc4 Nc1 Rh1 Na2 Rfg1 Rf1 Kc5 e1N Rh2 Be2 Rhh1 Nf3 Kd5 Rb1 Rh2 Rb4 Rb1 Re4 R1b4 Nd4 Rh1 Nb3 Ra1 Nac1 Raa5 Na1 Rc5 Na2 Rab5 Rge3 Qdb8 Rf3 Q8d8 Rg3 Qdb8 Ng5 Qh4 Ngh7 Qhd8
n1qN2Q1/R7/rBq2BnK/p1B5/2NPN3/1Qq4b/P2rk3/b1Qrbn2 b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 Na3 g5 cxd5 c5 b4 f3 bxc5 Qe7 Rb1 Qd8 Rb4 h6 Rf4 gxf4 g5 h5 Bh3 Qf6 Be6 Qd8 Bg4 hxg4 Kf2 Ke7 h4 a5 e4 b5 g6 Kf6 d6 Ke5 c6 Kd4 g7 Kd3 c7 f5 e5 g3+ Kf1 b4 e6 b3 e7 b2 e8N b1R h5 g2+ Kf2 Ne7 g8Q Na6 d7 Bg7 h6 Ba1 h7 Ng6 Nh3 g1B+ Kf1 f2 Kg2 f3+ Kg3 f1Q Ng5 f4+ Kg4 f2 Kh5 f3 Bb2 Qg2 Nf6 f1Q Nf7 f2 Bd4 Qe1 Be3 Qe8 d8B f1N Rh3 Bd7 c8Q Bf2 Bdb6 Nc7 Rh2 Qe6 Nd8 Ra6 Rh3 Qb7 Ne4 Na8 Qc7 Qc8 Qb3+ Ke2 d3 Rd1 Qc1 Qec3 Bec5 Ke1 d4 Qec6 Rf3 Be6 Rf7 Bf5 Ra7 Bd7 Qgd5 Rf8 h8B Bh3 Bg7 Rf3 Be5 Rd3 Nc4 Rd2 Qg8 Ke2 Kh6 Be1 Bf6
4Q1nk/2nR1qn1/bp2nr2/2q1n1R1/b1Nr1B1q/2KQ1BP1/3P3R/2Q3B1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 f4 e5 Nc3 exf4 Ne4 f3 Nf6+ gxf6 g3 Bd6 g4 Bg3+ hxg3 f5 Rh2 f4 Rh5 Bd7 Rh1 Bc8 e4 Kf8 a4 Kg7 e5 h5 a5 c5 g5 f5 d6 h4 a6 b6 g6 f2+ Ke2 b3 Kd3 c4+ Kd4 b2 d7 b1B a7 f3 e6 c3 e7 c2 e8Q h3 Ne2 h2 Nf4 Rh6 Ra4 Qc7 d8B Nd7 Ng2 f4 Rg1 h1Q Ba3 c1N Bg5 Nb3+ Kd5 Ne5 Qc2 Nc5 Kd4 Kh8 Qb2 Ne6+ Kd5 Bc2 Qc1 Qh4 Bb5 f1Q Bge7 f2 Bg5 f3 Be2 Qf7 Rh1 Qg1 Rg4 f1N Rd4 f2 Bc5 Bd1 Qd8 Ba4 Rh2 Ba6 Bf4 Ne3+ Ke4 f1N Bf3 Rc8 a8Q Nd5 Ne3 Rb8 Qd6 Nge7 Nc4 Ndc7 Qac6 Ne3 g7+ Kh7 g8R Rd8 Qdd5 N3f5 Rg5 Ng8 Qe8 Nfg7 Qd6 Kh8 Rd5 Nc6 Kd3 Rf6 Kc3 Ne5 Bce3 Qf1 Bg1 Qf2 Qdd7 Qc5 Rd6 Nf8 Qf5 Nfe6 Qd3 Rd7 Rc6 Rd5 Rd6 Rd4 Rd7
NR2k1q1/b3p1n1/3P2qQ/rr2b3/3bb1Q1/Qr3Pn1/B2B1BN1/2K3Nb b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 g4 c5 d4 h5 Kd2 b3 b7 e3+ Kc3 h3 Kb2 c4 f3 h2 g5 h4 d6 e2 g6 e1B b6 h3 d5 Bf2 g7 Nh6 g8N Bg7+ Nc3 Bf5 Bd2 Bgd4 Kc1 Nc6 b8Q Ra5 b7 Be4 Na4 c3 Qa8 c2 b8Q Nf5 Nh6 Ng7 Ng4 Rh5 Ne3 Ba7 Ng2 Nd4 Qb4 Ndf5 Qb6 Bd4 Bc4 Ng3 Qc8 Be5 Qg4 Qc8 Qe2 Qe6 Qa6 Qg6 Nb6 Rb5 Qd3 Bd4 Ba5 Rg5 Na8 b2+ Kd2 b1Q Ba2 Qb3 Kc1 Qc4 Qa3 Rf5 Kd2 c1B+ Kd1 Bf4 Bd2 Bfe5 d7+ Kf7 d8B Ke8 Bb6 Rb3 d6 Qg8 Qd3 Rh5 Kc1 Rb5 Ne2 Rg5 Rd1 h1R Qe3 h2 Ng1 Rh5 Qh6 Rf5 Ne2 Rf1 Bc5 h1B Ng1 Re1 Bb6 Re3 Re1 Reb3 Re2 Ba1 Bf2 Ra5 Re1 Bed4 Re3 Rfb5 Rc3 Be5 Rc6 Bac3 Rb6 Bcd4 Rb8+
QK1n2rq/4B2n/qN2PbQ1/p7/1Rbr1BPk/B7/q2Nq1r1/b3QN2 b - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 h5 f4 exf4 a3 g5 g3 h4 Ra2 h3 Bg2 hxg2 a4 b5 Ra3 g4 Rf3 gxf3 axb5 Bg7 Na3 Bh6 Nb1 Bf8 Kf2 Ke7 e4 Kf6 d4 Kg5 h4+ Kh5 g4+ Kg6 b6 f5 e5 c5 b7 a5 d6 c4 b5 c3 d5 c2 h5+ Kg5 d7 Bb4 d6 Ra7 h6 Nc6 b8B Bc3 e6 Bf6 b6 Ba6 h7 Bc4 Ne2 g1R Ba3 c1B b7 Bcb2 Qe1 Ba1 Nd2 Qc8 Ng3 Nd8 Rh2 Ra8 Rg2 Kh4 Ngf1 Ra6 Bc7 Rb6 b8N Rb4 Na6 Ra4 Nb4 Qb8 Nd5 Qb3 Qe5 Qa2 Nb6 Rb4 Ke1 f2+ Kd1 f3 Qe1 Nb7 d8B f4 Be7 Nd8 d7 Ra4 Rg3 Rg2 Bcd6 Nh6 Bb8 Rg8 h8Q Rb4 Qg7 Nhf7 Be5 Ng5 Qg6 Nh7 Bc7 Bb2 Kc2 Ba1+ Bb2 Ra4 Be5 Rb4 Kc3 Ra4 Kd4 Rb4 Nh2 f1Q Kc5 f2 Kd6 f3 Kc7 Qe2 Kb8 f1Q Ba3 f2 Rb3 Qh1 Nhf1 Qh2 Bf4 Qh3 Ng3 f1Q Rb1 Bb5 Rb3 Rd4 Rb4 Bc4 Qc1 Qff3 Ngf1 Qc6 Qc3 Qb5 Qe3 Qa6 Qee4 Nf7+ d8Q Qh2 Qe8 Nd8 Q8c6 Qh3 Qa8 Qh2 Bfd6 Qe5 Qb1 Qh5 Bf4 Qh6 Qbe4 Qg7 Qb1 Qh8 Qe1+
B1n2r2/2bP2pb/2bR2q1/2B2Rk1/3Q2B1/1b2bnN1/1P1Q3n/KR2r1Qb b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 g4 exf4 Qc2 h5 Qd1 hxg4 Nh3 a5 Nf2 a4 Nc3 a3 Nh3 a2 Nb1 axb1B Ng1 Kd7 Qb3 Ke7 Qd1 Ke8 e4 Ke7 d4 Kf6 Kd2 c5 Kc3 g3 h4 g2 b6 f3 d6 c4 d5 f2 b7 Be6 d7 Qb6 d8Q+ Ne7 d6 Nd7 b8R Ne5 h5 Ng4 h6 Nh2 Ne2 g1N h7 Ngf3 Bg2 f1B e5+ Kf5 d7 Nc8 Qh4 Bd6 Be3 Bc7 Qd2 Re8 h8Q Qa6 Kb4 c3 Qhd4 c2 Rb6 c1B Ra5 Bb3 Ka3 Rb8 Rh6 Qg6 Rg1 Rf8 e6+ Rb5 e7 Re5 Bh1 Bg2 e8B Be4 Rb5 Bc6 Rd5 f6 Rd6 Re4 Rh5+ Kg4 Rc5 f5 Ng3 f4 Rf5 Re6 Bf2 Re5 Qh6 Re1 Qd1 Be3 Bf7 Bc2 Ka2 Bb3+ Ka1 Bf1 Bg2 Bd3 Bc4 Bde4 Be2 Bed5 Qd2 Bg8 Qh8 Bh7 Qg8 Kh4 Qc4 Kg4 Qcd4 Kh4 Rff6 Kg5 Qb1 Ne5 Rf1 f3 Bg1 f2 Bg4 Nef3 Rf4 Re2 Rd1 f1B Rf5+ Kh4 Qbc1 Re1 Qcc5 Bfc4 Rb1 B4d5 Bf2 Be4 Qcc1 Re2 Qg1 Re1 Bf1 Bed5 Ba6 Be4 Bb7 Bed5 Ba8 Be4 Rf4 Kg5 Rf5+ Kh6 Nf1 Ne5 Qd5 Bg5 Be3 Bh1 Bc5 Nef3 Q5d4 Be3 Rf7 Kg5 Ng3 Ba2 Rf4 Bb3 Rf5+
BQ2q1qk/P2q4/3rb3/Q4pr1/r2rRB1n/R1KbRQqN/3n1B1P/8 b - - 0 1 legal: proof: f4 e5 g4 a5 c4 f5 b4 axb4 g5 d5 Nc3 Be7 cxd5 exf4 Ne4 Bf6 gxf6 h6 Nf2 h5 Ng4 hxg4 e4 Kf7 d4 c5 Kd2 g5 a4 b5 d6 g3 a5 f3 d7 g4 d5 f2 a6 b3 e5 c4 d6 c3+ Kd3 b2 Bh3 b1R Bf1 g2 Bd2 g3 Qc2 b4 Be3 b3 Nf3 g1Q Bc1 g2 Qb2 c2 Nd4 Rh4 Ra4 Qe8 d8R Nc6 d7 Nce7 Ne6 Rd4+ Kc3 Ng6 Nf4 Nh4 Qa3 b2 Nh3 Rd6 Bf4 Rbd1 Rc4 b1B Re4 R1d4 e6+ Kf8 f7 Kg7 f8Q+ Kh8 e7 Ra7 Bb5 f1Q Bc6 Qff2 Qa5 Qg3+ Re3 Qd1 Re1 g1R Ba8 Rg2 Qf7 Nf6 Qb3 Qeg8 e8Q c1Q+ Qc2 Qa3+ Qb3 Bd3 Qe4 Qe8 Qf3 Qa2 Qb8 Qag8 R1e2 Rg1 Ra2 Qa4 Ra3 Ne4+ Kb2 Rc7 a7 Nd2 Re4 Rb7+ Kc3 Rbb4 Re3 Qd1 Re4 Ra4 Re3 Qef7 Rde8 Qde1 d8B Be6 Bb6 Qd7 Re7 Qe2 Qf2 Qh5 Qf3 Qhe8 Bc5 Qf2 Bb6 Rg5 Bc5 Qg3 Re4 R4d5 Bf2 Rdd4 Re3 Bb3 R7e5 Be6 R5e4
Qr3nq1/3qk1pn/2N1n3/1RP3NR/2Kbb1P1/5Rn1/1BQ2nQ1/2qNb3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 b5 axb5 e5 f4 exf4 g3 h5 Qd3 a5 Kd2 h4 Ke1 h3 Qd1 a4 Bg2 Ra5 bxa5 hxg2 Kd2 d5 Kd3 f5 c4 f3 e4 f4 h4 f2 g4 f1Q+ Ne2 g1B e5 f3 h5 a3 e6 f2 e7 a2 b6 Nf6 a6 Nh7 h6 Nd7 a7 Bb7 Kc2 d3+ Kc3 d4+ Kb4 d2 a8Q d3 Nd4 Be4 Qc2 d1N b7 d2 b8R Qd3 Kb5 f1N Bb2 Ng3 Rh5 Nf2 Nc6 d1Q Nc3 Qc1 Nd1 Kf7 e8N Bb4 Nc7 Be1 Ne6 Ndf8 Ng5+ Ke8 Rb1 Qd7 c5 a1N Kc4 Nb3 Rb5 Nd4 Ra1 Rg8 Ra3 Nde6 Rf3 Rh8 Nd4 Ke7 Qc6 Nf6 h7 Rg8 h8Q Q8e8 Qh6 N6h7 Qa8 Rh8 Qg6 Qf7 Qf5 Qg8 Qfd5 Nfh1 Nb3 Bd4 Na5 Nf2 Qdc6 Bf5 Qe4 Bg6 Qe2 Bf5 Qf1 Be4 Qg2 Qf7 Ne3 Ng6 Qh3 Rb8 Nd1 Ngf8 Qg2 Qg8 Nc6+
1n1BBqqq/nk3pr1/r3PK2/1Nr2B2/QrR3Pr/1r4RQ/8/1R3Qb1 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Nd2 Bh6 Ndf3 gxf3 g4 Bb7 h3 Bd5 g5 Be6 Bg2 Bg7 Bf1 Bg4 hxg4 Bf8 Kf2 a5 b4 h5 e4 d5 c4 Kd7 b6 Kc8 g6 d3 e5 a4 g7 h4 e6 d4 b5 h3 c5 h2 c6 a3 c7 d2 Qb3 d1R Be2 d3 Nh3 a2 Ng5 d2 Qa4 Rh4 Ne4 Ne7 g8B Ra6 Rb1 a1Q Nc3 Kb7 c8R Nec6 Bh7 Na7 Rg1 h1R Rc4 Qg5 Bc2 Qg8 Rg3 Bd6 Bb2 Rc1 Bf5 d1Q Ba3 Bc7 Be7 Qd6 Bd8 Qdf8 Bed3 Rh7 Bc2 Rg7 Bce4+ Kc8 Bc6 Rh4 Be8 Rc2+ Kf1 f2 Kg2 Rb2 Kf3 f1R+ Ke4 f3 Kd4 f2 Ke4 Nbc6 b7+ Kb8 Kd5 Bb6 Ke4 Rb4 Kf4 Ne7 Ke5 Rc1 Kf6 f1R Qd1 Rf3 Qf1 Bg1 Qh3 Nac6 Qf1 Ra2 Qh3 Ka7 b6+ Ka6 b8Q Nc8 b7 N8a7 Qc8 Nb8 Qd7 Ra5 Qd4 Rc5 Nb5 Rfb3 Qf1 Rd1 Qc3 Rd6 Qd4 Nbc6 b8Q Qb2 Qc7 Nb8 Qa5+ Kb7 Qc3 Ra6 Qa4 Qd2 Bg6 Qh6 Qe3 Qh5 Bf5 Qhh8 Qed3 Rhh7 Qh3 Rh4 Qdf1
1qn3N1/kR6/1q1nQR1p/1nQB1B2/5R2/1Pr1r3/1b3K1P/nrB1rQn1 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Nd2 e4 Ndf3 exf3 Ra4 Qf6 Ra1 Qd8 g4 f5 c4 d5 e4 Kd7 b3 Kc7 c5 Kb7 b6 a5 e5 f2+ Ke2 f3+ Kd2 f4 g5 a4 e6 a3 e7 a2 e8Q d3 g6 d4 g7 h6 Qde2 Ne7 g8R Nbc6 Rg3 Na5 Bb2 Nc4+ Kd1 d2 Qe1 Nd6 Rc1 a1N Qh5 Bg7 Ba3 Re8 Bb5 f1Q Rg2 f2 Ne2 f3 Bc4 Qg1 Rg4 f1N Nf4 f2 Ke2 d1N Nd5 Nd2 Rf4 f1R Nf6 Nf3 c6+ Kb8 b7 Ka7 c7 Nc3+ Kd3 Ncb5 Ke2 Qg6 Ng8 d3+ Ke3 d2 Bd5 Rg1 Qf1 d1R Kf2 Bb2 Rc5 Rb1 b8Q+ Ka6 Rcc4 Bb7 Qc8 Ka7 Qe6 Qb8 c8B Re1 Bd7 Nec8 Rc7 Rg3 Qhf5 Ng1 Qfe5 Rc3 Rf6 Ne2 Rg1 Re7 Rg4 Ng1 Rgf4 Rb1 Qf7 Re3 Bf5 Ree1 Qc3 R7e4 Qe6 R4e3 Rff7 Qf6 Qc2 Qd4 Rf6 Qb6 Qc5 Be5 Bh3 Ne7 Bc1 Qc8 Qcc4 Bb2 Bf5 Qf8 Qc2 Rc8 Rd7 Rc6 Qc3 Qb8 Rc7 Nec8 Qb4 Rc4 Qc5 Rcc3 Rxb7+
5qQr/8/1k1r2BN/2rPnrNn/qb3p2/Q1q3RR/Kn3Pn1/1N1R2Q1 b - - 0 1 legal: proof: e4 d5 a4 dxe4 g4 f5 b4 b5 Bb2 h6 Bf6 f4 Bg5 Bf5 gxf5 hxg5 axb5 c5 Qg4 cxb4 Qh5+ Kd7 Qd1 Ke8 h4 Kd7 c4 Kc7 d4 e5 Kd2 a5 Kc2 b3+ Kb2 g4 h5 g5 c5 e3 h6 a4 c6 a3+ Kc3 e2 f6 e1Q+ Qd2 g3 d5 g4 h7 a2 Kb2 g2 f7 g3 Rh4 e4 Rh1 e3 Ne2 g1R Nc1 g2 Qb4 e2 Qc4 Ra6 Rh3 Nf6 Nd3 Bb4 f8Q Nbd7 Ne5 Nh5 Ng4 Kb6 c7 Ne5 c8R Qe7 Qg7 Qf8 Qd3 Rh1 Rc2 g1R Nh6 Rg5 Rc3 Rf5 Qg1 Qd1 Qdg3 e1N Bd3 Ng2 Qg8 Qe1 Bc2 Ra5 Rcg3 Qe3 Na3 Qe4 Rd1 Qf3 Nb1 a1Q+ Kc1 Qa4 Kb2 Rg5 Bg6 Rf5 Na3 Qd3 Ka1 b2+ Ka2 Qe8 Qf8 b1N Qg8 Nd2 Qf8 Rg8 h8N Ndc4 N8f7 Rh8 Ng5 Nb2 Qe7 Qf8 Qd6+ Kb7 b6 Qc3 Qc5 Ka6 b7 Rh2 Qe3 Rc5 b8Q Rh1 Qe8 Kb6 Qf7 Rh2 Qg8 Rh1 Qh2 Re1 Qf3 Re4 Qg1 Rec4 Qd3 Rc6 Qe3+ R4c5 Qd3 Rd6 Qe3 Qae8 Nb1 Qc2 Re1 Qea4+ Qa3 Qc3 Rd1
1R2Q2b/R4bp1/qqbq2k1/N1RP4/3q3q/Nr1Q2Pr/N6b/1Q1K1Bq1 b - - 0 1 illegal: Other
1Q1B3r/2r2pqP/3B2n1/2qNR2b/K2P2kb/pN5n/2BN1rq1/Q1Q1b3 b - - 0 1 legal: proof: b4 d5 a4 e5 g4 h5 f3 hxg4 c3 g3 f4 b5 axb5 exf4 Ra3 d4 cxd4 g2 Rg3 fxg3 d5 Qd6 Qc2 Qe7 Qd1 Qd8 d4 Ke7 Kd2 Kf6 Kc3 Kf5 Kb3 g5 h4 a5 e3 c5 b6 a4+ Ka3 c4 b7 c3 h5 g4 h6 c2 h7 Qe7 d6 Nc6 b8Q Nd8 b5 Ne6 b6 Ng5 b7 Nh3 Ne2 g1Q Nd2 g2 Qc7 g3 b8Q Kg4 e4 Bb7 e5 Bf3 Bb2 c1R e6 Qf2 Qc5 g1Q d7 g2 d8B Rc2 Kb4 Ra7 Nc1 Rc7 Ncb3 a3 Bd3 Qg5 Qa1 Ne7 Bc3 Ng6 Ka4 Be7 Bb4 Be2 Qc4 Qc5 Qcc3 Bh4 e7 Qf6 e8N Qg7 Qc4 Qh2 Re1 g1B Be4 Rb2 Qcc1 Bgf2 Bc2 Bf3 Re6 Qg2 Re5 Be1 Nf6+ Kg3 Bd3 Bh5 Nd5 Kg4 Bb1 Qb6 Bd6 Qc5 Nc4 Rd2 Bc2 Rf2 Ncd2
1bKNQ3/q1NpB1P1/N1rRr1n1/1b1Q2Rn/5P2/3bp1b1/3Q1R2/2rk1b2 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e3 g5 Bh3 gxf4 g5 f3 Bg4 f4 exf4 hxg4 Kf2 Kf7 h4 Ke6 c4 Kf5 b4 Ke4 c5 a5 c6 e5 g6 d3 h5 d2 b6 Kd3 b7 e4 b5 a4 h6 a3 g7 a2 h7 Qc7 b6 Nh6 Ba3 Nf5 Rh5 Rg8 h8R Bd6 Rg5 Ng3 Nc3 Nh5 Nge2 Ra6 Rh6 Re8 Nd4 Re6 Ncb5 Be5 Qc1 d1B Be7 Ba4 Qc4+ Kd2 Rf1 a1R Qd5 Rd1 Rhg6 Kc1 Ke3 g3 Rf2 g2 Rh6 g1B Rf6 Qd6 c7 Bh2 Nc6 Bg3 Nd8 Nc6 b8Q Bb7 c8Q Qc7 Rh6 Bc2 Qa7 Bd3 Qcb8 Ba8 b7 Rf1 Rf6 Kd1 Qad4 Qa5 Qc8 Bb8 Nc7 Ne5 Qc3 Rh1 Kd4 e3 Rh6 Qa1 Kc5 Ng6 Qb2 Ra4 Qba2 Rc4+ Kb5 Rcc6+ Ka5 Ba7 b8N Rf1 Nba6 Bb8 Nb7 Qd4 Qe8 Qa7 Nd8 Rg1 Rh2 f2 Rg2 f1B Rf2 Nh4 Rf6 Ng6 Qb2 Re4 Rd6 Re6 Qbd4 Rc1 Qc3 Bc6 Qb4 Bb5 Qb2 Qd4 Qc3 Qa4+ Kb6 Rc2 Qa5 Rc6+ Kb7 Qd4 Kc8 Qa7 Rh2 Rg2 Qaa2 Rgc2 Rf2 Rc1 Qd2+
B1Bk4/2p1r1Q1/Kn2b3/3RQQ1n/1bpbNP2/2bN2NP/n6q/B2b1r2 b - - 0 1 legal: proof: c4 d5 a4 dxc4 e3 b5 axb5 f5 Bd3 g5 Bf1 f4 exf4 Qd3 Ra5 Qd6 Ra1 Qd8 f3 g4 g3 gxf3 g4 h6 g5 h5 b4 Qd7 Ra6 Qd5 Re6 Qd6 Re2 Qd8 Rg2 Qd4 Rg3 Qd8 Rg4 hxg4 d4 e5 Kd2 a5 Kc3 a4 b6 f2 g6 e4 b7 e3 h3 e2 g7 e1N b5 a3 b6 g3 d5 a2 d6 a1B+ Kb4 g2 Kb5 Bf6 d7+ Ke7 Qd4 Qe8 Nd2 Nh6 g8B Qh5+ Qe5+ Kd8 Ne2 g1B Bb2 Ng4 Ne4 Ra1 Be6 Bb4 N2g3 Re8 Bg2 f1B Qf5 Rd1 Ba1 Nc2 Rh2 Bh8 Bh1 Bhc3 Rd2 Nf6 Rd5 Qe2 Bf3 Nc6 b8Q Ne7 b7 Nh5 Ka6 Bgd4 Qa7 Qf2 Qc5 Be2 Qd6 Qh2 Qde5 Rf1 Bg2 Ng6 Bh1 Bd1 Bf3 Ke7 d8N Nf8 Nf7 Nd7 Qg7 Nb6 Qfe5 Bd7 b8Q Bc8+ Qb7 Bd7 Beg4+ Be6 Qf5 Bd7 Ne5+ Kd8 Nd3 Re7 Qfe5 Nc8 Qb5 Nb6 Nd6 Be6 Bg2 Bf7 Bc8 Be6 Nde4+ Bd6 Ka7 Nb4 Qf5 Na2 Ka6 Bd7 Bf3 Bdb4 Qc5 Be3 Qd6 Bed4 Qde5 Qh1 Ng5 Ke8 Rd6 Kd8 Ba8 Qg2 Rd5 Qh2 Rc5 Be6 N5e4 Bf3 Rb5 Bd1 Rd5+
1n3bN1/7P/3NrqRn/2kQ3p/3n1prb/3RP1bK/r2Q1BQ1/R1n2N2 b - - 0 1 illegal: No proof kernel
2q5/2b1k2n/QRQN1R2/2BR4/q5nP/1Pp1r1b1/QBK1Brp1/3rq2r b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 Nh3 f5 Nc3 f3 Ne4 f4 Ng1 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 e4 g5 d4 a5 Kd2 c5 f6 f2 h3 a4 f7+ Ke7 b3 g3 d5 g2 b6 a3 b7 f3 e5 a2 e6 c3+ Kd3 g4 Kc2 c4 Bf4 g3 Qd4 Qc8 Bc1 Nf6 Bb2 Nh7 Qd2 Nd7 b8R Ne5 Be2 f1R Rb6 f2 Nf3 g1R Nd4 g2 Rd1 a1Q Nb5 Ng4 Nd6 Qa4 Rh2 Rh1 h4 Bg7 Rh3 Re8 Rf3 Be5 Rf6 Bg3 Qh6 Re1 Rd3 f1Q f8B+ Kd8 Qd2 Rd1 e7+ Kd7 Ne4 Bc7 d6 Qe1 Rd5 Ra7 Qc1 Ra5 Qa1 Rc5 Qa2 Rb5 Rd4 Rf5 Rd5 Rf2 Rf3 Ke6 d7+ Qc6 d8Q Bg3 Rb8 Qa4 Qa5 Bc7 Nd6 Kd7 Qa6 Ke6 Bc1 Kd7 Kb1 c2+ Kb2 Ke6 Rb6 Kd7 Rff5 Ke6 Rf6+ Kd7 Bf4 c1B+ Kc2 c3 Be3 Bd2 Bc5 Bf4 Bh6 Bg3 Bc1 Rf3 B1a3 Re3 Bb2 Rf8 Rf1 Rff3 Rf2 Ke6 e8Q+ Kf6 Qeb5 Ke7 Qc6 Rf8 Rf6 Rf7 Rh6 Rf2 Rf6
R3bK2/1n2Q1R1/3B4/1Brpnp1q/1k2n1Bn/rPQ2R2/2br2Pq/N4Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxf4 axb5 c5 d4 cxd4 Ra3 e5 Kd2 Be7 Ra1 Bf6 Ke1 Bg5 Nd2 e4 Ndf3 exf3 hxg5 Qe7 Ra5 Qf6 Ra1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 h5 e4 a5 c4 d5+ Ke5 f5 b6 h4 g6 f2 b7 h3 g7 d3 Ra3 a4 Rh2 f3 Qe1 d2 Rh1 d1B Bf4 h2 Ne2 Qh4 Nc1 Qh5 Be2 Bd7 Rf1 Ne7 Kf6 h1Q g8R Be8 Kg7 Ng6 e5 Nc6 b8Q Nh4 e6 Qh2 e7 Bc2 Kf8 Ne5 Qd8 Rh7 Ra2 a3 Rg7 Rh6 Qd1 Kb4 c5 Rc6 Nb3 Rcc8 Ra1 a2 c6 Ra7 c7 Ra3 Re1 f1R Bg3 f2 Bg4 Nf7 Re3 Ne5 Rf3 Re1 Qc1 Re2 Qf1 Rd2 Bf4 Rb8 c8Q Rb5 Qdc7 Rc5 Q8d8 Nc4 Bd6 Ne5 Qd1 f1N Qc6 Ne3 Qf1 Nd1 Qdc7 Nc3 Q6b7+ Bb5 e8B Ne4 Qbc8 Bbd3 Ba4 Bb5 Qe7 Be8 Bb5 Bd3 Rc1 a1N Rc3 Nc2 Na1 Ne3 b3 N3c4 Rc2 Na5 Ra2 Bc2 Qcc7 Nb7 Qc6 Ra6 Qc8 Rc6 Ra8 Ra6 Qce6 Ra3 Q6f6 Nd3 Qb2 Ne5 Qc3+
b1BQ3r/5BQ1/1b1RP3/3p1b2/B2n1qb1/q1n1N1pN/r2kP2N/r1Q4K b - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 g5 fxe5 h6 d4 cxd4 g4 Bg7 Bf4 Bf8 Ra3 Bb7 Rg3 gxf4 g5 Ba6 g6 Bc8 Rg5 hxg5 Kf2 Ke7 Kg2 Ke6 c4 Kf5 h4 Ke4 h5 Ke3 c5 f5 b6 a5 g7 g4 c6 a4 b5 d3 b7 g3 h6 f3+ Kh3 a3 h7 f4 c7 a2 b6 a1R Nc3 f2 Kg2 d2 Nh3 Bc5 Qc1 Nf6 g8B Nc6 b8N Qe7 b7 Nd5 Bf7 Nd4 Nc6 R8a2 b8Q Bb6 e6 Qa3 Qa8 Bb7 Qd8 Ba8 c8B d6 Rg1 f3+ Kh1 Nf5 Qe1 d1B Nd4 Bc2 Bg2 f1Q Qb1 f2 Nf3 Nd4 Nh2 Be4 Nd1+ Kd2 Ne3 Nc3 Bf3 Bf5 Bc6 Qfc1 Re1 f1B Qb2+ Qc2 Rc1 d5 Ba4 Ne4 Qb1 Qc7 Rc6 Qf4 Rd6 Nc3 Ng1 Rg8 h8Q B1h3 Qg7 Bhg4 Nh3 Rh8 Qc1+
r2q4/1N4K1/NR2P2P/nQ2n1Qq/b1k4b/B1Bqr2N/p4QBp/3r1q2 b - - 0 1 legal: proof: a4 d5 f4 b5 axb5 e5 h4 exf4 b4 h5 Ra3 d4 Rah3 d3 g4 hxg4 cxd3 gxh3 d4 Ne7 d5 Ng8 Kf2 Ke7 Kf3 Kd6 Ke4 a5 d4 g5 b6 c5 h5 h2 e3 f3 b7 a4 b5 c4 b6 g4 h6 c3 Qd2 a3 Qf2 g3 Bg2 c2 Nd2 a2 Nh3 Nd7 Kf5 Be7 b8N Bh4 e4 f6 Kg6 f5 b7 f4 Na6 Ne5+ Kg7 Bd7 Rd1 Ba4 Nb3 Ne7 Nbc5 Re8 Ba3 N7c6 Rb1 c1R Rb6 Rd1 b8Q+ Ke7 Kh7 Na5 d6+ Kf6 Nb7 Ke6 Qe2 f2 Kg7 f1Q Qf2 f3 d7+ Nec6 e5 Kd5 Nb4+ Kc4 d5 Qd3 d6 Re6 Na6 Re8 Qg1 f2 e6 f1Q Qf2 Rf8 Nb4 Ne5 Na6 Qc7 Qe8 Rf3 Qh5 Qb8 d8B Re3 Bf6 Qd8 d7 Qfe2 Qg5 Qh5 Qgf5 Ng4 Bc3 Ne5 Be4 g2 Bc6 g1Q+ Bg2 Qc8 d8Q Qgf1 Qd7 Qb8 Qg5 Qd8 Qb5+
QRbQBq2/N4n1n/2pr3P/5b2/3rb1R1/1rpQKP2/4R2b/N1N1q2k b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 e3 f3 Bd3 f2+ Ke2 dxc4 b3 f1B+ Ke1 f5 Ba3 f4 Be7 h6 Bg5 hxg5 Qf3 Qd7 Kd1 Qh3 Kc1 Qg4 Qd1 f3 Ra2 f2 Ra1 Qf3 gxf3 Be6 Be4 Bd7 Bd3 Bc8 h4 Kf7 b6 Ke6 b7 Ke5 e4 Kf4 h5 Kg3 b4 Kg2 b5 a5 e5 g4 b6 g5 h6 g3 e6 a4 e7 c6 e8Q g4 Qd7 c3 Qe2 a3 Bg6 a2 d4 Nf6 d5 Bd6 Qee7 Bd3 Na3 f1B Nb5 Rd8 Qf8 Be4 Be8 Nh7 Na7 Bfd3 Ne2 Be5 Rb1 a1Q d6 Qa3+ Rb2 Bc2 Qdf5 Nd7 Rh4 Rb8 Qh8 Bcd3 Kd1 Bf4 Qd5 Ne5 d7 Nf7 Nc1+ Kg1 Rd2 g2 Re2 g3 Rg4 Qf8 Qb5 Bb1 Qd3 Kh1 Qg8 Be3 Ke1 Bg1 Kd1 Bh2 Ke1 Ra8 b8N Bf5 Na6 Rb8 b7 Bc2 Re7 g1Q+ Ke2 g2 Nb4 Qf1+ Ke3 g1R Re5 Rg2 Qh8 Rd2 Re7 Bb1 Nc2 Be4 Na1 Qe1+ Kd4 Bf5 Re2 Rd1 Ke3 Bc2 Qa6 Rd6 Qd4 Bce4 Qdd3 Ra8 b8R Rd4 Nb5 Ra7 Qb7 Ra3 Qa8 Rb3 Na7 Nfg5 Bh5 Nf7 Bg6 Re8 d8Q Re6 Bh5 Red6 Bg6 Nh8 Be8 Nf7 Qb6 Qg7 Qc7 Qf8 Qd8
3q1Rn1/1K1bp1qB/5kq1/QP1r3Q/Npn1n2N/1r2b3/5PB1/n1N2BQ1 b - - 0 1 legal: proof: b4 a5 h4 d5 e4 g5 a4 gxh4 c4 f5 exf5 b6 cxd5 Qd7 Ba3 Qd6 b5 Qd8 Bb4 axb4 a5 Nh6 a6 Ng8 Ra5 bxa5 Ke2 Kf7 Kd3 c5 Kc4 h5 g4 h3 d4 h2 g5 h4 f6 a4 d6 h3 Kd5 a3 a7 a2 d7 a1Q Ne2 c4 Nbc3 Bh6 g6+ Kf8 f7 Kg7 f8N Nc6 Na4 c3 Nc1 c2 Qh5 Kf6 g7 Na5 Ng6 Nc4 Kc6 Be3 d5 Rh6 Rg1 h1Q Nh4 h2 Rg2 Rh8 d6 Qg1 Rg4 Rb8 a8B h1N Rg2 Ng3 Bb7 Qf8 d8Q Ne4 Qa5 Qd8 d7 Rh6 Rg5 Rg6 Rd5 Rg3 Rd3 Rh3 Rd2 Qg6 Rd3 Qf8 d8Q Bd7+ Kc7 Qd4 Bc6 Rc8+ Kb7 Qd5 Qdc7 Rd8 Qh2 Qd4 Qg1 Qd6 Ne2 c1N Rd4 Nb3 Nc1 Na1 Bd5 Nh6 g8B Qfg7 Bh7 Ng8 Rd3 Bg5 Rd2 Rb3 Bc6 Be3 Rd4 Ng3 Bcg2 Ne4 Rd1 Rc8 Rd2 Rc5 Rc2 Rd5 Rc3 Ncd2 Rc8 Nc4 Re8 Qb6+ Ka8 Qd8+ Kb7 Qg3 Nb6 Q3g5 Na4 Q5g6 Rf8+
8/p1qrNQ1R/5pn1/PKb1k1Q1/P3Bqq1/R1bRQ3/q4r2/2NN1b1n b - - 0 1 legal: proof: b4 d5 a4 b5 h4 g5 Ba3 gxh4 f3 e5 c4 Qg5 f4 exf4 Qc2 Qe5 Qd1 Qc3 cxd5 Qc5 Ra2 Qb6 Ra1 Qa5 bxa5 b4 Qc2 bxa3 Qb3 Nh6 Qd1 Ng8 d4 Ke7 Kd2 Kd6 Kd3 h5 Kc4 c5 g4 a2 e4 f6 g5 f3 g6 h3 g7 f2 Qc1 h2 Na3 h4 Qe1 h3 Qd1 Ne7 g8Q Ng6 Qf7 Nd7 Nf3 Nde5+ Kb5 c4 Nb1 c3 Qd2 c2 Ne1 c1Q Nc3 Nd3 Nd1 Qc7 Bg2 f1Q Qg5 Nf2+ Nd3 Be6 Bf3 Rd8 Bg2 Qg1 Nc1 Rh4 Bf3 Rf4 Bg2 Be7 Bf3 Qg4 e5+ Kd7 d6 Bc4+ Kb4 Rf5 d5 Bf1+ Be4 Rf3 Rb1 a1B Rb3 Bb2 Rd3 Bc3+ Kb5 Kc8 e6 Rd7 Qf8+ Kb7 Qf7 Bf8 e7 Qf4 Rg1 h1Q e8Q h2 Rg3 Qg2 Rh3 h1Q Rh7 Qgg4 Qee6 Rd8 d7 Qhg2 d6+ Kb8 Qee5 Nh1 Qc5 Rf2 Qe3 Re8 d8N Re7 Nc6+ Kc8 Qg7 Kd7 Qg8 Rf7 Ne7 Ke6 d7 Qgh2 d8R Qhg2 Nf5 Bc5 Qg7 Re7 Qf7+ Ke5 Rd6 Rd7 Ne7+ Qgf5 Rd4 Qgg4 Rd6 Qe2 Rd4 Qa2 Rb4 Qg4 Rb3 Qf4 Ra3 Qg4 Qh6 Qff4 Qg5+
1R5r/1r1P1B1p/p6R/8/K1Qb1P2/1n2r1rq/QR1rrn2/k1BbBQN1 b - - 0 1 illegal: No possible last move, all moves rejected
Bn6/1pb5/2Pb1Rrb/N1N1rR2/b2n1R1P/Q1Qrqp2/1r1N1k2/K6Q b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 dxc5 e5 b4 axb4 f4 Nc6 e4 Be7 f5 Bg5 Bf4 exf4 e5 Nb8 e6 Be7 Bc4 Bf8 e7 Qc7 Nc3 Qd8 Be6 fxe6 Nb1 Kf7 Kd2 Kf6 Kc1 Ke5 Kb2 Ke4 e8R Ke3 h4 d5 a4 g5 c4 e5 c6 e4 h6 d4 a5 f3 h7 g4 a6 d3 c7 d2 f6 b3 f7 g3 a7 g2 c5 Bd6 f8N Qe7 Nc3 Kf2 Ra5 e3 Ka1 e2 Nd7 e1B Rf8 Qe3 Rf4 Nh6 Nge2 g1B Nb1 Nf5 Nd4 Rg8 h8Q Rg6 Qf8 Bh2 Nc6 Nd4 Rg1 Bg3 Qc1 d1R Nd2 Bh2 Ra6 Bg3 Na5 b2+ Kb1 Bh2 Rg5 Bg3 Ka2 b1R Rgf5 Rb2+ Ka1 Bh2 Qf7 Bg3 Qa2 Bh2 Qa3 Bg3 Nf8 Bd7 c8Q Ba4 Nd7 Bc7 Raf6 Bh2 Ndb3 Rd3 Nd2 Bg3 c6 Bh2 Nc5 Bd6 Ndb3 Bd2 Qh1 Bc1 Qh8 Bc7 Re4 Bhd6 Rg4 Qe4 Qg7 Bh6 Nd2 Qe3 Qh8 Nd7 Rgf4 Re8 a8B Re5 Qg8 Nb8 Qgb3 Qe4 Qbb4 Qe3 Qbc3
b3Q1K1/3R1BQN/5PRb/n3P2r/2qpn1R1/1bNQ1N2/3qnb1p/2q3k1 b - - 0 1 illegal: No possible last move
1Nn3BQ/n1Q2rR1/p1N1PR1p/P2R4/n1rN2r1/3qk2b/q1rQ2q1/4K3 b - - 0 1 legal: proof: c4 c5 b4 e5 f4 exf4 Bb2 g5 Bc1 g4 bxc5 d5 Bb2 dxc4 Ba3 Bh6 Bc1 Bf8 h4 g3 Bb2 Qd6 Bd4 Be7 Bf2 Bg5 hxg5 Kd8 g6 Nd7 Qa4 gxf2+ Kd1 Nb6 g4 Nd7 g5 Nb8 Kc1 Qd3 Qc2 Ke8 Qd1 Qd8 e4 Ke7 d4 Ke6 Kd2 b5 a4 f5 d5+ Ke5 a5 Kd4 c6 b4 g7 h6 c7 c3+ Kc1+ Ke3 g6 a6 e5 b3 d6 f3 d7 c2 Ra2 f4 Nc3 Nc6 Bc4 f1R Rh3 Nge7 g8Q Na7 Rh5 f2 g7 f3 Nge2 Rg1 Ne4 f1R Ra1 f2 Nf6 Rg4 Nd4 Rb8 Qf8 Rb4 Bg8 Rc4 Ra4 Rh7 Rb4 Rh1 Rb6 f1Q Rd6 Rh2 e6 Bb7 c8Q Qg2 Qc7 Nec8 Rf5 Be4 Rdd5 Bf3 Kb2 c1N+ Qc2 Ne2 Qd2+ Kf2 Kb1 b2 Rf4 Rb4 Kc2 Rc4+ Kd1 b1Q+ Qc1 Qd3+ Qd2 Qe8 d8N Qa4+ Nb3 Qa2 Nc6 Rc2 Nd7 Rhh4 Rf6 Rgc4 Bf7 Rhg4 g8R Rhg7 Ndb8 Rh7 Bg6 Rf7 Bf5 Be4 Bh7+ Bf5 Rg7 Kf3 Ke1 Nc3 Qh8 Na4 Nbd4+ Ke4 Qb4 Ke3 Qb2 Rf4 Bg8 Bh3 Qb4 Rg4 Qd2+
qq1k4/r4pKb/R1rR2BB/8/P4bb1/Q4pqQ/2r1nQ1P/1B1NbR2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 e5 cxd5 exf4 b4 axb4 Nc3 h6 Ne4 Nd7 Ng5 hxg5 Bg2 Ndf6 Bf1 Nh5 gxh5 Ra3 Rb1 Ra4 Ra1 Ra8 Kf2 b5 Kf3 c5 Ke4 b3 Ke5 g4 a4 g5 d4 g3 e4 c4 d6 b4 h6 g4 h7 f3 d5 g2 Qe2 g3 Rb1 b2 Qf2 c3 Nh3 g1B Bd3 c2 Bh6 Ne7 Kf6 c1R e5 b3 e6 g2 Bg6 Nc6+ e7 Rc2 Rf1 Rg8 h8Q b1Q Re1 b2 Re6 Qa5 Qh7 Kd7 e8B+ Kd8 d7 Nd4 Ra6 Bd6 Qh8 Rf8 Kg7 Bf4 Qh7 Ra7 Qh8 Kc7 d8R Ne2 Bb5 Bg4 Rdd6 Rc8 Bbd3 Rc6 Qh4 Bb6 Nf2 g1Q Nd1 Qg3 Rf1 Bf2 Qf8 Be1 Qh3 Qb4 Bde4 Qb8 Bef5 Qd3 Be4 Qdb5 Bb1 Qa8 Qe7+ Bd7 Qe3 Qbb8 Qa3 Bg4 Rf6 Rb6 d6+ Kd8 d7 Rc2 Re6 Rbc6 Rd6 Kc7 Ba2 b1B d8Q+ Kb7 Qb6+ Kc8 Qf2 Kc7 Re6 Kd8 Rf6 R2c4 Re6 Bbf5 Bb1 Rc2 Bh5 Bh7 Bg6 Kc8 Rf6 Kd8 Rd6+
1QK5/RRpQq1Nb/1b6/BnQ1k2p/2q1NN2/r2bP3/2bPbn2/R4b2 b - - 0 1 legal: proof: c4 a5 g4 e5 h4 g5 f4 gxf4 b4 axb4 g5 d5 cxd5 b5 Bg2 Ra6 h5 e4 Bf3 Rg6 hxg6 exf3 Kf2 Kd7 a4 Kd6 g7 f5 e3 h5 a5 b3 a6 b4 g6 b2 a7 b3 a8Q Ba6 Nh3 Nh6 g8N Qe7 g7 Bd3 Nc3 b1B Ra7 b2 Qc2 Ke5 d6 Nc6 d7 Nd4 d8Q Nb5 Ne4 Be2 Qc4 Bc2 Qab8 b1B Ngf6 Rg8 Qd7 Ng4+ Kg1 f2+ Kg2 f3+ Kg3 f1B Ba3 f2 Nf4 Bed3 Ne8 Bfe2 Bb4 f1Q Ba5 Nf2 Qcc6 Rh8 g8R Rh6 Qc4 Ra6 Rg6 Bg7 Rb6 Bh8 Ng7 Qc1 Bb4 Ra3 Ba5 Qf1 Rbb7 Qc1 Nd5 Qf1 Qc5 f4+ Kh2 f3 Kg3 Qc1 Rg1 Qb2 Rf1 Qb3 Nf4+ Qd5 Ng5 Bh7 Ne4 Bcd3 Rg1 Bbc2 Ra1 Nd1 Nf6 f2 Kh4 f1B Kg5 Qd6 Ne4 Nf2 Nge6 Bg8 Kg6 Bh7+ Kf7 Bf6 Ke8 Bh8 Kd8 Qe7+ Kc8 Bf6 Qb6 Qc4 Qbc6 Kf5 Rb1 Bd4 Ng7+ Ke5 Ra1 Bb6 Qc5+
2Q1kq2/1Pn3pK/1Rq5/1N1r1np1/6BP/B3nQ2/1QNb4/rnNBnn2 b - - 0 1 illegal: No possible last move, all moves rejected
5kn1/q2qQB2/nN1Np1R1/1rQ5/KP1r1B1n/2P2n2/3r3p/Bb1N1rQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f3 cxd4 f4 g5 h4 Nf6 g4 Bg7 b4 Na6 f5 Qb6 Ra3 Qc5 Rf3 Ng8 Rf4 gxf4 g5 Nb8 g6 Qc7 Ke2 Bf6 Ke1 Bg5 hxg5 Qd8 Kd2 d5 c3 a5 Kc2 h5 Kb3 f3 b6 e3 g7 f2 g6 a4+ Ka3 d3 b7 d2 f6 h4 Qh5 d1R Qg5 e2 Qg4 e1N Qe4 h3 Bc4 f1R Bb2 h2 Nh3 d4 Rg1 d3 Ba1 d2 Nf2 Na6 b8B Bf5 Bf4 Nf3 Bd5 Rh5 f7+ Kd7 f8N+ Ke8 Qd4 Qd7 Qc5 Rb8 Bc4 Rb5 Rg3 Rh4 Bf7+ Kd8 Rg4 e6 Rg5 Qd6 Rg2 Ke7 Nd7 Be4 Nb6 Rg4 Ka2 a3 Kb3 a2 Na3 Bb1 Ka4 Rh4 Nac4 Rg4 Qh5 Qd7 Nd6 Rh4 Qc5 Rg4 Be3 Rd4 Bh6 Qa7 Bf4 Nh4 Bb2 a1N Rg1 Nf6 g8Q Nc2 g7 Ne1 Ba1 Nef3 Qh7 Ng8 Rg4 Rc1 Rg6 d1Q+ Ka3 Qd3 Nd1 Rc2 Kb3 Rd2 Ka4 Qe3 Qch5 Qd7 Qc5 Nh6 g8Q Qf2 Qgg7 Ng8 Rf6 Qe3 Qg1 Kf8 Rg6 Qe5 Qc4 Qc5 Qd5 Qcc7 Qc5 Qa7 Qg7+ Ke7 Qf6+ Kf8 Qe7+
2BB2n1/1p6/NK1Q1b2/4bnp1/rNbNP3/1n1rrb2/1BQ1P2R/3Q2nk b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 cxd5 h6 d6 hxg5 Bh3 g4 Bg2 Be6 Bf1 Bc8 a4 Qf6 d4 Qh4 d5 Qh7 f3 Qe4 fxe4 Bf5 Ra3 Be6 Rd3 Bc8 Rd4 exd4 Kd2 Kd7 Kd3 c5 Kc4 f5 Kb5 g5 h4 f4 h5 d3 h6 c4 a5 b3 h7 c3 a6 d2 a7 b2 Qa4 d1R Rh4 c2 Qc4 g3 Rh3 g2 Qa4 f3 Qa5 f2 Qa6 Bg7 Qb6 Be5 Rh1 Nc6 Nh3 g1N Na3 b1B Nf4 Ba2 Rh2 Nce7 Bb2 c1B Bh3+ Nf5 Ne6 f1N Nd4 Nd2 Nac2 Nb3 Nb4 Rd3 Qa6 Bf6 Kb6 Bf4 Qc4 B4e5 Qc2 Nc1 Bg4 Bc4 Qd1 Nb3 Bh3 Kd8 d7 Ke7 d8B+ Kf7 d6 Kg6 d7 Kh5 Qc2 Kh4 Bg4+ Kg3 Qd1 Rb8 a8N Re3 Nc7 Ra8 Bh3 Ra4 Nca6 Rd3 Be7 Re3 d8Q Bd7 Bg4 Be8 Bh3 Bh5 Qd6 Bf3 Bd8 Nge7 Bc7 Rd8 h8Q Rd7 Qc8 Ng8 Rh1 Kf2 Bd8 Kg3 Bg4 Kg2 Rh3 Bd3 Qcc2 Bc4 Rg3+ Kh1 Rg2 Rc7 Bh3 Rc5 Rf2 Rd5 Bg4 Nfh6 Bc8 Nf5 Nb5 Rd2 Nd4 Rdd3 Rh2+
3nK2R/R2Qn2b/q1b3pq/2QRq2n/BbNpq3/2P4B/3P1qQB/k7 b - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 f5 b3 Nc3 e6 Nd5 exf5 Nb4 cxb4 Bb2 f4 Ba3 b5 Nf3 f5 Ng1 f3 Bb2 f4 Bc1 Ra6 Ba3 Rf6 Bc1 Rf5 gxf5 Bc5 Rb1 Bd6 Ra1 Bf8 h4 g6 h5 Nf6 h6 Rg8 Rh5 Rg7 hxg7 Ng8 Rh1 h5 Kf2 Ke7 e4 Kd6 a4 Kc5 e5 d5 e6 h4 c3 d4 f6 h3 a5 h2 a6 b2 a7 b1Q a8B b3 e7 b2 e8R b4 f7 b3 Re3 Bb7 Re1 Qd5 Nh3 Qe5 Qe2 Qd3 Ra7 Kc4 Rd1 b1Q Ng5 b2 Ne4 Kb3 Bh3 Ne7 g8Q Bc6 Rdg1 Qa6 Nd6 Ka2 Qh7 Ka1 Nc4 Qbe4 Rg5 b1B Rf5 Ba2 Ba3+ Qb1 Bd6 Bb3 Rg1 h1Q Rh5 Ba2 Rgg5 Qbe4 Qg7 Bb3 Rh8 Ba2 Bb7 Bb3 Bbc8 Ba2 Bhd7 Qh6 Be8 Bb3 Bh3 Ba2 Qf6 Bb3 Qf5 Ba2 Qd7 Bb3 Kg1 f2+ Kh2 f1Q Qg2 Qf2 Bc7 Bg7 f8Q f3+ Qf4 Bf8 Bd6 Qfe2 Kg3 f2 Bc7 Qe1 Kg4 f1N Bd6 Qf2 Rh5 Qd3 Qff5 Ng3 Rg5 Nh5 Bc7 Qeg7 Qc5 Qe4+ Bf4 Qge5 Rf5 Qhg7 Kg5 Qh7 Bh2 Qhg7 Nb6 Bg8 Nc4 Bh7 Qb7 Bd5 Ba4 Nbc6 Qc8 Nd8 Qd7 Qb8 Re5 Bc6 Rd5 Nc8 Qb6 Bb4 Qb5 Ne7 Qc5 Qge5+ Kh6 Nf6 Kg7 Qbb7 Kf8 Nh5+ Ke8 Qbc7 Rf8 Qg7 Rff5 Qce5 Rf8 Qh6 Rh8
7n/2R1B1rR/3qnp2/3b3b/qN3Q1R/PN2PQ1p/r4Np1/rkQ3Kb b - - 0 1 illegal: No extended proof kernel
1q4n1/2prp1N1/n1nP2R1/bBR3Kb/1N1R1Q2/kp3b1q/4N1QP/6rQ b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 h6 g4 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Kg4 Kc5 a4 b5 d6 f3 a5 b3 d4+ Kb4 g7 f2 d7 b2 a6 Bb7 a7 Na6 f6 Bf3+ Kf5 g4 f7 g3 d5 g2 d6 Qb8 Na3 b1B+ Kg5 Bg6 d8N Bgh5 Ne2 g1N Ne6 Rh6 Rc1 Rg6+ Kf4 Rg2 Nc2+ Kb3 Nb4+ Ka3 Rc5 Rg3 Bh3 f1Q Bg4 Qh3 Kg5 Nf6 g8Q Bg7 f8Q Bh8 Qg6 Ng8 Qf4 Bc3 Ng7 Bd2 Qf1 Bc3 Qg2 Be1 Qge4 Bc3 Nd4 Ne2 Rd1 Bd2 Qh1 Rg1 Qg2 Be1 Bd7 Bc3 Nd5 b4 Bb5 b3 Nb4 Qf8 Qc6 Rd8 a8R Rd7 Qce4 Qb8 Qc6 Ng3 Ne2 Nf5 Rd2 Nd4 Qb7 Nc6 Rd4 Qa7 Rf8 Qb8 Rf6 Na7 Qbe4 Nc6 Rg6 Be1 Nd3 Ba5 Nb4 Qd8 Qb1 Qb8 Qf1 Bfg4 Qh1 Bf3+ Qfg2
8/BpQ4n/3BR2K/1pq3n1/r2kPPB1/N1n1r2b/rR1pQ2q/bR2Q3 b - - 0 1 legal: proof: g4 f5 b4 c5 d4 h5 gxh5 a6 b5 axb5 Qd3 cxd4 Qxf5 e5 Qf3 d3 Nd2 Ke7 Qf7+ Kd6 Nb3 Kc6 Nd4+ exd4 Kd2 Kc5 e4 g5 a4 d5 h4 g4 c4 g3 h6 g2 h5 Qh4 h7 Qd8 h6 Bf5 a5 Bd6 a6 Bh2 a7 Nd7 Qh5 Ne7 Ba3+ Kb6 c5+ Kc6 Rb1 Qc7 Ne2 g1N Nc3 Nf6 Qe2 Bh3 Rb2 Be5 Nb1 Qb6 f4 Nf3+ Kd1 Rhf8 h8Q d2 h7 Ng5 Bg2 Rfb8 Bf3 Qc7 Qe1 Qc8 Ke2 d1Q+ Kf2 d3 Kg3 d4 Kh4 d2 Bg4 d3 Qg7 Qa4 h8B Nfh7 Kh5 d1R Kh6 Qc2 Qg8 d2 Qc4 Nd5 Qce2 Nc3 Bb4 Qd3 Na3 Qg3 Bg7 Bf6 Bf8 Ra1 Bd6 Qh2 Ba5 Qf5 Bb6 Rg8 Rg1 Ra2 Rf1 Raf8 a8R Rg7 Ra6 Ra8 Qg3 Rc7 Rfb1 Rd7 Qge1 Be5 Bdc7 Rd3 Bd6 Re3 Ba7+ Kd7 Bab8 Ke6 Rb6 Ra4 c6 Bd4 c7 Bh8 Bf3 Qc5 Ba7 Be5 Bf8+ Kd7 Re6 Bf6 Bd6 Kc6 Bg4 Qf5 Bac5 Nd5 Rb4 Ba1 Ba7 Nc3 R4b2 Qd5 Bb8 Qe5 c8Q+ Kb6 Bdc7+ Kc5 Bd6+ Kd4 Qc7 Qc5 Ba7
3Rn2R/1n1P4/1bp1Q1k1/2Bb2r1/B3RP2/N1pp1b2/1Qbr2B1/2qQ1Kb1 b - - 0 1 legal: proof: c4 b5 e4 e5 a4 f5 exf5 d5 d4 g5 h4 gxh4 Na3 Nc6 Nc2 Nb8 axb5 dxc4 d5 Ne7 Nd4 exd4 Qg4 Ng8 Qh5+ Kd7 Qd1 Ke8 g4 Kf7 f4 a5 b4 h5 d6 c3 g5 h3 f6 a4 b6 h4 b5 h2 b7 a3 b6 h3 Bd2 a2 Ne2 Nc6 b8R Kg6 b7 Na5 f7 Nf6 Rb1 a1B Be3 Bf5 d7 Bc5 f8Q Bc2 Qd6 Qc8 Rb4 Rg8 Qe6 Bb6 Bg2 Bb2 Bf2 Ba3 Rc4 Bac5 Kf1 Ra6 Ra8 Ra7 b8Q Nb7 Be3 Ra2 Bg1 d3 Re4 c6 Bf2 Qe8 Nd4 Qe7 Nb5 Be3 Bh4 Qa3 Bf2 Qc1 Na3 Bec5 Qf8 Be3 Qb4 Bed4 Qb2 Rg7 Rg1 h1B Rh8 h2 Be3 Be5 Bc5 Bd4 Bh3 Bf3 Bg2 h1B Rd8 Kh5 g6 Rg8 g7 Kg6 Qd5 Ne8 Qc4 Rf8 g8B Rf5 Qd5 Rg5 Qe5 Rg4 Bb3 Rg5 Ba4 Be3 Bh3 Bf2 Rg4 Bg1 Rh4 Nc7 Rhh8 Ne8 Re2 Bd5 Re4 Bf3 Bg2 Bcb3 Qa1 Rd2 Qb2 Bc2 Qe6+
3b1K1R/Bp1Q1nR1/1n4rp/3Q2N1/pk1PN2n/3R3b/2N2PqQ/2r1rr2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a6 b5 axb5 a3 Bh6 a4 Bf8 a5 Bh6 Bc4 Bg7 Bb3 Bf8 Ba4 bxa4 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h6 g4 h3 g5 c6 d6 h2 f6 e6 d7 Ra6 g6 Kb4 g7 c5 f7 c4 Nf3 c3 Na3 c2 Ng5 Nf6 g8N Nh7 Nf6 Be7 Nfe4 Qg8 f8R Bd8 Rg1 h1R d3 Rb6 Be3 c1R a6 Rbc6 Rg2 Rf1 a7 Rb6 a8Q Ra6 Nf3 Ng5 Ba7 Rh7 d4 Re7 Kf6 Nf7 Nfg5 Rac6 Qg4 e5+ Qe6 Rd6 Rg3 Rdc6 Rd3 Rd6 Nf3 Qg2 Nfg5 Ra6 Kg7 Re8 Nd6 e4 Qd5 e3 Rh8 e2 Ne4 Re7 Kf8 e1N Rh3 Rg6 Rd3 Rc7 Rad1 Rc1 Rg3 Re5 Rdd3 Nf3 Rg4 Nh4 Rgg3 Na6 Qb8 Nc7 Rg4 Na8 Qc7 Rf5 Qh2 Nb6 Rgg3 Re5 Rg4 Bf6 d8Q Bf5 Q8d7 Bd8 Rgg3 Bh3 Nh7 Rf6 Rg7 Rg6 Nhg5 Ree6 Ng3 Re3 N3e4 Ree1 Nc2+
2nBRqr1/1K3QQB/4q3/p5R1/3P3r/2p1q2q/P1R1N1np/1QbBbk2 b - - 0 1 legal: proof: e4 c5 c4 f5 f4 fxe4 f5 g5 b4 d5 bxc5 dxc4 g4 Bh6 Nc3 Qd5 Nce2 Bg7 Nf4 gxf4 Ba3 Be6 Bc1 Bf7 h3 Bh5 g5 Bg4 hxg4 Qd8 Qb3 Bh6 Qd1 Bf8 Kf2 Kd7 d4 Kc6 f6 Kd5 f7 h5 c6 a5 c7 e5 c8Q b5 g6 f3 Ke3 c3 g7 b4 g5 b3 g6 f2 Nh3 h4 Ba6 f1Q Qd3 b2 Qc2 b1Q Qd2 Nd7 Qd1 Ba3 f8R Nc5 Bd3 Qb3 Ba6 Nd3 Qf5 Ne7 Rf7 Ne1 g8Q Nc8 g7 Qf8 Ng1 h3 Ne2 h2 Rg1 Rh4 Rg5 Qh3+ Qf3 Qb6 Re7+ Qbe6 Re8 Bb2 Bb7+ Kc4 Qc2 Ba3 Qb1 Rb8 Bd2 Bc1 Qg3 Ra8 Qf7 Rb8 g8B Ng2+ Kf2 e3+ Kf3 Ra8 Bh7 Rb8 Bbe4 Ra8 Bc2 Rb8 Nf4 e2 Bd1 e1Q Ne2 Qg1 Rh5 Qe1 Bg5 Qd2 Bd8 e4+ Kf2 e3+ Kf3 Qe1 Rg5 Ra8 Qe4 Qd2 Rb1 Qe1 Rb2 Qg1 Qb1 Rb8 Nf4 e2 Rc2 e1B Ne2 Rb7 Qf6 Rg7 Qf7 Rg8 Qf4 Qd7 Ke4 Qdf7 Ke5 Qg6 Qgg4 Kd3 Kd5 Qge3 Qf7 Qf5+ Kc6 Qfe4+ Kc7 Qf5 Rg6 Qfe6 Rg5+ Q3e4 Nf4+ Ke3 Rh5 Qef3 Ne2 Kf2 Qgg7 Kf1 Rg5 Qf2 Kb7 Qf4 Qd7 Qfe3 Qdf7+
2R4N/p2P2P1/q1nq2nQ/pb3N2/4Q1r1/2NQ1KRR/p4nrB/n1n4k b - - 0 1 illegal: No proof kernel
N3kN2/7P/rQ3Q1K/1bpNq1R1/nR2p1Bn/1qpP4/b4Q1b/Rq5q b - - 0 1 legal: proof: f4 a5 c4 b5 a4 bxc4 g4 d6 g5 Ra6 g6 Rb6 d3 Rb5 axb5 h6 f5 d5 Bg5 hxg5 f6 gxf6 e3 d4 exd4 f5 Qc2 f4 Qa4 Nc6 Qd1 Nb8 Kf2 c5 Kf3 f5 b4 e5 h4 a4 d5 a3 g7 a2 b6 Rh6 d6 Ne7 g8R Ng6 b7 Bd7 h5 Qb6 Bh3 Bb5 Nd2 Nd7 b8N c3 Rb1 a1Q Qf1 Qc7 Qe2 Qa3 Qf2 Nb6 Nd7 Na4 Ne2 Qb3 Bg4 Qb8 Nc4 e4+ Kg2 f3+ Kh3 f4 Ncb6 Nh4 Na8 Rf6 h6 Rg6 h7 Re6 Qf1 f2 Rg6 f3 Nf4 Bg7 Nd5 Be5 Nf8 Bh2 Qg2 f1B d7+ Kd8 Rg7 f2 Rb2 Be2 Ra1 f1Q Rbb1 Qf5 Qf2 Bd1 Rg8 Qfe5 Rb2 Bc4 b5 Ra6 b6 Bb5 b7 Bc2 Rg7 Bb1 Rg8 Ba2 Rg7 Qbc7 b8Q+ Qc8 Qd6 Qb7 Qc6 Qc2 Rb4 Qb1 Bd1 Qbb8 Kg4 Qb6 Kh5 g4+ Kh6 g3 Rg6 g2 Rg5 g1Q Bg4 Qh1 Qd6 Qe7 Qdf6 Qe6 Ndc7 Qeb3 Qb6 Qe5 Nd5+ Qc7 Nf4 Ke7 d8Q+ Kf7 Qdf6+ Ke8 Nd5 Qg3 Qd2 Qe5 Qdf2
2rQ3r/1BB3R1/nbp5/b1R2nkP/2npK3/NR3Pbp/4Qrb1/B5Q1 b - - 0 1 illegal: No proof kernel
kBqBQ3/r2p3n/3Pq3/q1Rrrpp1/1B6/1R2Q1Pn/2N2nQ1/1RK3n1 b - - 0 2 legal: proof: b4 b5 c3 a5 Qb3 axb4 Qb2 b3 Qa3 b2 Qa4 b4 Qd1 b3 h4 g5 h5 Ba6 Rh4 Bg7 Rh1 Bd4 Nh3 Bc5 Ng1 Bb4 cxb4 Bb7 Rh2 Bc8 Rh1 Ba6 f4 e6 f5 Bc8 e3 Ra3 f6 Bb7 Bd3 Be4 Bc2 Bg6 hxg6 Ra7 Bf5 Ra8 e4 exf5 e5 Qe7 e6 Kd8 Na3 Kc8 Nc2 Kb7 Nd4 Qd8 e7 Kb6 Ne6 fxe6 Rh3 Kb7 Rh1 Kc6 e8Q Kb7 a4 b1R d4 c5 Kd2 h5 d5 h4 d6 e5 g3 h3 a5 b2 b5 e4 g7 h2 f7 e3+ Kc2 e2 f8B e1N+ Kd2 c4 b6 Ng2 Qe3 c3+ Kc2 Nf6 g8Q Nc6 Ra3 Nf4 Bg7 Ne5 Nf3 Nh7 Qde2 Nh3 Nd4 Nf3 Bd2 Rd1 a6+ Kb8 Rg1 h1N Qg2 N1f2 b7 Ka7 Qf8 Qa5 Bf6 Re8 Re1 Re5 Qe7 Rb8 Qe8 Ra8 Bd8 Nfg1 Rf1 Qd5 Be1 Qe6 Rb3 Kb8 Ne2 Rdd5 Nd4 Ka7 Bd2 Ne4 Rc1 b1Q+ Kd1 Qa1 Rcb1 Qa5 Be1 Rc8 Kc2 Rc7 b8B+ Ka8 a7 Nef2 Nb5 Kb7 Na3+ Qb4 a8R Qb5 Kc1 c2 Bb4 Qa6 Kb2 c1Q+ Ka1 Qcc6 Kb2 Qab6 Ra6 Qa5 Nc2 Qcc5 Rb6+ Ka8 Rc6 Ra7 Kc1 Qc4 Rc8 Qca6 Rc4 Qc8 Rc5
r1nk3q/p2pR2B/2Pp1BP1/1Q2r3/2bq4/KQ3p2/R1Q1b1bB/3nR2N b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 a4 Qe7 axb5 Bh6 g5 Bf8 d5 Qd8 d6 cxd6 Nd2 Bh6 g6 e4 Ndf3 Bg5 hxg5 exf3 Kd2 h5 Kc3 f5 Kb3 h4 c4 f2 e4 h3 b6 h2 b7 f3 g7 f4 c5 Nf6 g8Q+ Ke7 c6 Nd5 e5 Nb4 e6 Nd5 Qc2 Nb6 Ra2 Qe8 Nh3 Rh6 Ka3 Rg6 b4 Na6 b8Q Nc7 b5 Ba6 Bd3 f1B Nf2 Be2 Re1 Nc8 b6 h1Q b7 Qh4 Nh1 f2 Be3 f1B Bg1 f3 Bh2 Rh6 Bh7 Kd8 g6 Rh5 Qf7 Bab5 Qff5 Bbc4 Qb5 Nd5 Qbb3 Ke7 Qb5 Qd4 Qbb3 Kf6 e7 Qh8 e8R Bg2 Re7 Ne3 Qb5 Nd1 Qbb3 Nb6 Qb5 Rd5 Qg8 Nc8 b8B Re5 Bc7 Bcd3 Qgb3 Bc4 Rg7 Ke6 Ba5 Kf6 Bc3 Ke6 Rg8 Ke7 Rg7+ Kd8 Re7 Qe8 Bd2 Qf8 Bg5 Qh8 Bf6
1n4QQ/2b5/q1RNPnr1/k1r2ppp/n2nB3/1p2P1KQ/N1b2BNB/8 b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 Ke7 b4 axb4 h4 Kd7 h5 Ke8 g4 Qg5 a3 Nd7 h6 Qd8 g5 gxh6 g6 Nb8 a4 Qd6 Ra3 Qf6 Rg3 Qd8 Rg5 hxg5 Kf2 Kd7 d4 c5 a5 Kc7 d6+ Kc6 d5+ Kb5 d7 h5 e6 f5 a6 c4 a7 b3 g7 b2 d6 c3 Qd3+ Kb6 Nh3 c2 Bf4 c1N Kg3 Nb3 Nc3 b1N Bg2 Rh6 Be4 Nd4 Na2 Nf6 g8Q Nc3 Rc1 Na4 Rc6+ Ka5 Qa3 Qe8 d8N b5 d7 b4 Nf7 Rg6 Nd6 Ba6 Be3 Qd8 Nf4 Qb6 d8B Bd3 Bf2 Bc2 Bc7 Be7 Qd3 b3 Ng2 Bd8 e3 Na6 Qc4 Rc8 Qf1 Nb8 a8Q+ Na6 Bb8 Bc7 Ba7 Nb8 Qh1 Nbd7 Qh3 Qa6 Bc5 Rb8 Qh8 Rb5 Qag8 Nb8 Ba3 Rc5 Bb2 Nb5 Be5 Nac3 Kf3 Na4 Bh2 Nd4+ Kg3
3Br1qQ/qQ3NQR/1bp2PK1/1rr4p/p1PN3p/2q2kB1/3n4/2B2n1N b - - 0 1 legal: proof: b4 d5 e4 dxe4 g4 f5 a4 b5 axb5 g6 Be2 Be6 Ra3 Bf7 Rh3 Ba2 Rh5 gxh5 h3 Bc4 Bf1 Be2 g5 Bg4 Bd3 e3 Be4 fxe4 hxg4 Qd6 Qf3 Qd7 Qd1 Qd8 Ke2 Kd7 d4 Ke6 c4 a5 f4 h4 Qb3 a4 b6 c6 b5 Nh6 b7 Nf5 b6 Na6 b8B Nc5 b7 Ra5 g6 h6 Qb5 Nb3 g7 Qe8 g8N Ng3+ Kd1 e2+ Kc2 e1R g5 e3 Kd3 e2 g6 Bg7 d5+ Kf5 d6+ Kg4 f5 Nf1 Ke4 Bd4 f6 Kg3 Qa6 Rb5 g7 Bb6 Nh3 Rd1 Rh2 Rdd5 Nc3 Rdc5 Nf2 Qc8 d7+ Qc7 Nh3 e1Q+ Ne2+ Kg4 d8B Qeg3 Nd4 Qc3 Re2 e5 Nf2+ Kg3 Kf5 h5 Nh6 Re8 g8Q+ Qg7 Qf8 Nbd2 Nh1+ Kh3 Re3+ Kg2 Qa7 Qe7 Qh8 e4+ Be5 Qf7 b8Q Qc7 Re1 e3 Qc8 e2 Qd7 Qb8 Qab7 Qa7 Qf7 Nb1 Qff8 Qg3 Qff7 Qg8 Qfh7 Qd5 Kg6 Qe6 Bg3 Qd5 Ndf5 Kf3 Rd1 Qe6 Rd7 e1Q Rf7 Qc3 Nd4+ Kg2 Q7g8 Nbd2 Rh7 Qd5 Qgg7 Qg8 Nc2 Kf3 Nf7 Ke2 Nd4+ Ke3 Nb3 Kf3 Nd4+
1k2Q2r/1p2qNR1/pp1Rpq1b/1B3Pn1/3B1pb1/Q3R2P/B1K3p1/2Q4n b - - 0 1 illegal: No proof kernel
2bR2N1/Q3K3/2B1R2p/qpNr1Rpn/2pN1p1P/2p1P1Qp/6k1/Q1rb4 b - - 0 1 illegal: Other
1brN2bq/2Qnk1qb/1R2b3/2R3R1/3BrNp1/2n1P1n1/3Qb1PN/4KQq1 b - - 0 1 illegal: No proof kernel
KQ2B1r1/2Q2N2/Nq1n2bQ/pbB5/2rNk3/nr1R2n1/P1qB1P1n/2b4n b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Na3 f6 Rb1 fxg5 Rb3 g4 Rg3 hxg3 Ke2 Kf7 Ke3 Kf6 d4 Kf5 h4 a5 c4 e5 h5 g5 c6 b5 h6 g2 d5 g3 c7 b4 c5 g4 c6 b3 h7 b2 d6 b1B d7 Ba6 c8N Ne7 c7 Nbc6 Qe1 Rb8 Qd2 Na7 Nb6 Nec8 Be2 Bb5 Nac4 Nd6 c8Q Rg8 Na4 Qb6+ Qd4 Rb7 Bf3 Bh6+ Ke2 e3 h8Q e4 Nh3 g1R Qc3 g2 Ba3 g3 Bb4 Rc1 Rd1 g1N+ Kf1 e2+ Kg2 e1Q Na3 e3 Nc5 e2 Bc6 Rc2 Na6 Bc1 Rd3 Qd1 Qb8 Qd2 Qcg7 Rc4 d8B Qc2 Be8 Ke4 Qbc7 Rb8 Bg5 Rb7 Bgd2 e1N+ Kf1 Nef3 Kg2 Rb8 Qgh6 Nh2 Bc5 Ne2 Ng5+ Kf5 Nf3 Ke4 Ne5 Rb7 Nf7 Rb8 Kh3 g2 Kh4 g1N Kh5 Qb3 Nc2 Ng3+ Kh4 N1e2 Nd4 Nh1 Kh5 Rf8 Kg6 Qc2 Kf6 Neg3 Ke7 Rg8 Ke6 Ba4 Ke7 Nab5 Kd7 Rb7 Q8f6 Rb8 Qfd8 Rb7 Qb8 Na3+ Nc6 Qbb2 Kd8 Rb3 Nd4 Bb5 Qbb6 Nb7+ Kc8 Nd6+ Kb8 Rg7 Ka8 Rg8 Ne6 Qf6 Qbb8 Qd8 Qd7 Qb6 Nd4 Qd1 Bc3 Kd5 Rf3 Bg6 Bd2 Qc2 Rd3 Ke4 Qdc7
1nNb1N2/5knb/3r4/4Rrn1/6RK/qrqpRr1Q/PNqPQB2/3Q1b2 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 b5 a4 b6 cxb6 Bc4 b5 Be6 b4 Bb3 axb3 g4 h5 f4 e5 Kf2 b5 c4 d5 c5 d4 g5 h3 Kg3 h2 g6 h4+ Kg4 b2 c6 b3 g7 b4 c7 h3 Nc3 b1R Bb2 e4 Ba3 b2 Qc1 b3 Qe1 e3 Qe2 Qd6 Nb5 Nh6+ Kg3 Be7 g8R+ Kf7 f6 Bd8 Qg2 e2 Qf3 e1N Qf2 Nf3 Bc5 Ra6 Na7 Ng5 Ne2 Nf5+ Kg4 d3 Re1 h1B Nc3 h2 Na4 Rh5 Re5 Rf1 Qe2 b1Q Nb2 Rf3 Bf2 Qc2 Re1 Ng7+ f5 Qa3 Qd1 Bg2 R1e3 Be6 c8Q h1Q Qe2 Rd6 Qd7+ Be7 Nc8 Qhc1 Qa4 Bf1 Qd7 Rhh3 Qd1 Rhg3+ Kh4 Qc3 Qe2 Q1c2 Qa4 Bd5 Qg4 Bd8 Qh3 Be4 Qd1 Ne8 Rg6 Ng7 Qe2 N5e6 Rg4 Ng5 Qd1 Kf8 f7 Rf4 Na4 b2 Qe2 b1R Nb2 Rgf3 Qd1 Ne8 Qe2 Kg7 f8N Kf7 f6 Bh7 Qd1 Rf5 Qe2 Kg8 f7+ Kg7 Ne6+ Kg6 f8Q Ng7 Qe8+ Kf6 Qa4 Kg6 Nf8+ Kf7 Nd1 Rb4 Nb2 Rb3 Qe4 Rg3 Qeh1 Rgf3 Qg1 Bg2 Qge1 Bf1 Q1d1
1QqB3R/2p1r3/2PPQbnN/3B1rR1/rbk4R/4nbrB/6Q1/b3b1nK b - - 0 1 illegal: No possible last move, all moves rejected
1q2B1N1/1N2K3/k2Bn1bp/b2N2Qq/1nr2q1P/r2P2RQ/3qQ1qB/4b2q b - - 0 1 legal: proof: f4 e5 c4 b5 b4 g5 a4 d5 axb5 dxc4 Ra4 g4 Ra3 exf4 Rf3 gxf3 Kf2 Kd7 g4 c5 h4 Kc7 e4 Kb7 d3 a5 e5 f5 b6 h6 b5 a4 g5 a3 g6 c3 e6 a2 e7 a1B e8Q c2 g7 c4 Ba3 c1Q Qa4 c3 Be2 c2 Qb3 Qd1 Bb4 c1Q Be7 Nf6 g8Q Nd5 Na3 Bc3 Qg5 Nd7 Nc4 Ra3 Nh3 Ba5 Rg1 Nb4 Bd6 Qcd2 Rg3 Nc5 Qb1 Qh1 Qf1 Ne6 Qg2 Bg7 Qeh5 Bc3 Qh2 Ka8 b7+ Ka7 b6+ Ka6 b8B Bb7 Bbc7 Be4 b7 Qb8 Qhg4 Rc8 Qg2 Qdc1 Bd1 Bd2 Ba4 Qhd1 Be8 Be1+ Kg1 f2+ Kh2 f1Q Q2e2 f3 Nf4 f2 Nd5 Qg1+ Kh3 f4 Qgf3 f1Q+ Kg4 Qc5 Qh1 f3 Qh3 f2 Kh5 Bf3+ Kg6 Qg2 Kf7 f1Q Kf6 Bh5+ Ke7 Qa8 Bb8 Qfh1 Bc7 Qf4 b8N+ Kb7 Nd7 Bg6 Bb8 Qdd2 N7f6 Ka6 Bc7 Qb8 Ng8 Bb6 Na5 Qb5 Nb7 Ba5 Bb6 Rc4 Bg1 Qc5 Bh2 Qb5 Nc3 Qbf5 Nd5 Q5e5 Qf6 Qh5 Qg5
n2r4/b1pbbk1B/R7/1r3Q2/b3NN2/Q2P1Q1n/K1P2NqB/n1B1b1rn b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 h4 f5 b6 e5 g6 a5 g7 e3 b5 f3 b7 a4 h5 f2+ Ke2 f4 b6 e4 h6 g3 h7 g2 Bb2 a3 Ba1 a2 Nh3 g1R Be5 a1N Bd4 Nd7 b8Q Kf7 b7 Qg5 Qa7 Be7 b8Q Ngf6 g8N Nh5 Be5 Qg2 Qb4 Nb6 Qc5 Bd7 Qaa3 Rb8 Nf6 Rhd8 h8B Na8 Nd5 Ba4 Nbc3 Rb5 Qe1 f3+ Kd1 e2+ Kc1 e3 Bh2 Nf4 Qd1 e1B Bd3 f1B Nf2 e2 Nce4 Nh3 Bb2 Qg3 Kb1 Qg2 Ng4 B1h4 Ka2 e1B Nf4 f2 Qf3 Be2 Qe5 f1N Bc1 Ng3 Ngf2 Bhf6 Qg5 Bd4 Qe5 Ba7 Qf5+ Kg7 Bc4 Bf1 Bg8 Be2 Bh7 Bf1 Qfc5 Kf7 d3 Be2 Qfe3 Bg4 Qf3 Bd7 Qg5 Rf1 Rg1 Nh1 Qe5 Qg7 Rg6 Rg1 Ra6 Qg2 Qf5+
2K1R2r/1n5P/1Qbp1B1k/Nnq3N1/Nb1P1q2/1q2Q2Q/q3B1qb/1b2B1r1 b - - 0 1 legal: proof: g4 e5 b4 h5 f4 hxg4 a4 exf4 a5 c5 Ra4 b6 axb6 Rh6 b5 Rh8 Rb4 cxb4 Kf2 g5 h4 f5 c4 Kf7 e4 Kg6 e5 a5 b7 f3 Kg3 b3 b6 b2 d3 f2 e6 a4 c5 a3 c6 f4+ Kh2 g3+ Kh3 f3 Kg4 g2 c7 a2 e7 a1Q e8N Nc6 b8Q Na7 b7 Bb4 Nc3 Nb5 Qb3 Ne7 Nd6 Nf5 Nh3 g1B Nc4 Nfd6 Bd2 Qg8 h5+ Kg7 Qa3 Bh2 h6+ Kg6 h7 Kh6 Qb3 Qd1 Rg1 Ra1 Na5 Rb1 Qa3 Qa2 Na4 Rc1 Qa7 b1B b8B Bb7 c8Q Bc6 Qb6 Nb7 Be5 d6 Kf5 Qdc2 Bdc3 g4 Ng5 g3 Bf6 g2 Qb3 Qcb2 Ke6 Rd1 Rh1 g1Q d4 Qg2 Bd3 f1Q Qe8 Qff2 Re1 Qfc2 Re3 f2 Be2 Rf1 Be1 Rg1 Re4 f1Q Qc8 Qaa1 Qe3 Qf4 Ke7 Qc5 Qch3+ Qh4 Re6 Qaa2 Re4 Qbb3 Re5 Bf3 Kd7 Bfe4 Re8 Bf3 Qhe6 Bc6+ Kc8 Qf4 Q6h3+
2Q4K/k2q1R2/rbQqPnNQ/1rpB1bp1/2R2q1B/7r/nb3BP1/5Rn1 b - - 0 1 illegal: No proof kernel
b4B1N/5N1P/2Q1B3/3N2bQ/n1qpqB2/qpRPbn2/1qr1rQr1/2k4K b - - 0 1 legal: proof: g4 e5 b4 h5 f4 hxg4 a4 exf4 a5 c5 Ra4 b6 axb6 Rh6 b5 Rh8 Rb4 cxb4 Kf2 Ke7 Kg2 Ke6 c4 Kf5 h4 Ke4 c5 d5 e3 a5 h5 g5 c6 f5 b7 g3 h6 g4 h7 b3 b6 d4 c7 a4 Bb5 f3+ Kf1 f4 Rh3 g2+ Kf2 a3 Rh4 g3+ Ke1 a2 Na3 a1Q Ne2 g1B Kf1 f2 Kg2 f1Q+ Kh1 Qf2 Qe1 Nh6 Rh2 f3 Rh3 Na6 b8B Ng4 b7 Nh2 Nf4 Bh6 Nd5 Nc5 Nc4 Kd3 e4 Kc2 e5 Qe8 e6 Qa3 e7 Bg5 Bd7 Na4 Be6 Bd7 c8Q Bc6 Bd6 Qe2 b8Q f2 Qcb7 f1Q Qd8 Nf3 Qf2 Rc8 Qa5 Kb1 Qba6 Ba8 Ne5 Rc2 Ng6 Qc4 Bc5 Qfe2 Qc6 Rf8 Bd6 Rf5 Bb4 Re5 Nh8 Qg6 e8N Qge4 d3 Qd2 Nd6 Qdc3 Ndf7 Qcb2 Qg2 Bf2 Bf4 Be3 Rh5 Kc1 Qf2 Nd2+ Kg1 g2 Kh2 g1R Bf8 Rg2+ Kh1 Nf3 Rh6 Bf6 Ne7 Qcb4 Rh5 Qg6 Qcd5 Bd2 Qac5 Re2 Qcc6 Be3 Qdb5 Bh4 Rc5 Qe4 Rc3 Qc4 Qh5 Bg5 Nd5
1NQn3q/rB3rNn/3Q1b1B/N2p3K/kR1bbQ2/2BP3p/P5q1/r1n3n1 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 b5 a4 Na3 c6 Rb1 cxb5 Rb2 b4 Rb3 axb3 Ke2 h5 Kf3 e5 c4 d5 g4 Kd7 f6 Kc6 f7 b5 g5 e4+ Kf4 h3 d3 b2 f3 b1N g6 b3 g7 e3 c5 b4 Qc2 h4 Bb2 h2 Be2 h3 Qc4 Rh7 Ba1 b2 Kg3 b3 f4 Nf6 g8Q Be7 f8B Bf5 Qg6 Rf7 Kh4 Ra7 Nf3 Be4 f5 Nd2 Ng5 b1R Bg4 b2 Ne6 e2 Bh6 Qh8 Ng7 Nb3 Qb4 Rc1 Nc4 b1N Bc3 e1B+ Kg5 N1d2 Na5+ Kd7 Rg1 Nh7+ Kh5 h1Q f6+ Kc7 c6 Nf3 Rg2 Ra1 Bc8 Nc1 Rb2 Ng1 Bb7 Bf2 Qc4 Kd6 c7 Qg2 c8Q Nc6 Rb4 Bc5 Qd4 Nd8 Qf2 Bd4 Qe3 Nc6 Qf4+ Kc5 Qgg3 Rf8 f7 Bef6 Rc4+ Kb5 Qg6 Bd8 Qgd6 B8f6 Ra4 Nd8 Rc4 Re8 f8N Re7 Nd7 Rf7 Nb8 Bf2 Rc6 Ka4 Rb6 B2d4 Rb4+
1b2n3/6Q1/Kp1r1nb1/1p2r1R1/3Pk2n/QPB2qr1/Q2B1RBN/Rnb3q1 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 h4 exf4 Nc3 gxh4 Nb5 a6 Qc2 axb5 Qb3 Bg7 Qd1 Bf8 e4 Kd7 Ke2 Kd6 Kd3 Ke5 a4 c5 g4 h5 d6 f5 a5 f3 a6 f4 d7 h3 b3 b6 g5 f2 g6 c4+ Kc3 h4 g7 h2 d3 f3 a7 h3 Bg2 f1N Qe2 f2 Bg5 Ng3 Qf1 Nf5 Rc1 Nh4 Re1 Rh6 Re2 Bd6 Qa1 f1N Qa2 Nf6 g8Q Ne8 Bd2 Qf6 d8B Qf3 Rf2 Nd7 Qg7+ Ndf6 Be7 Bb8 Bb4 Bf5 Ba5 Kd6 e5+ Kd5 e6 Bg6 e7 Ke5 Bb4 Kf5 Kd4 c3 Qa3 c2 Bbc3 c1B Qa2 Rh5 Qa3 Rg5 Qa2 Rg3 Qa3 Bd6 Qa2 Rd8 a8Q Rd7 Q8a3 Bb8+ Qd6 Nc7 e8R Re7 Rf8 Ne8 Qda3 Re3 Rg8 Re5 Bh6 Nd2 Bf4 Qd1 Nf3 Nb1 Bfd2 Qe2 Rd1 h1Q Nh2+ Qf3 Re1 Qg1 Rd1 Nd7 Re1 Re4+ Kd5 Ndf6+ Kc6 Re5+ Re4 Rg4 Kb7 Rg3 Nf1 h2 d4 h1R Ka6 Rh2 Re1 Rhh3 Rd1 Ke4 Nh2 Nf5 Qh7 Rh6 Rg7 Nh4 Rdf1 Bf5 Rg5 Bg6 Qd7 Rh7 Qa7 Rd7 Qb7+ Rdd5 Qg7 Rd6 Qd7 Bb2 Qa5 Na3 Ra1 Nb1 Qg7 Bc1 Q5a3
n1rk3B/N2P3K/1q1bpqBQ/2nb1p2/R6R/1B1n1R2/1r2P3/Q1rQq2n b - - 0 1 legal: proof: f4 b5 g4 g5 c4 d5 a4 dxc4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 a5 h4 c5 b4 a4 d4 g3+ Kf3 g2 Ke4 a3 h5 f3 g6 f6 d5 c3 d6 a2 g7 c2 b6 c4 b5 c3 b7 f2 h6 Qb6 h7 Nd7 Kf5 Ra3 Kg6 Nc5 b8R Kd8 d7 Rb3 Bb2 c1R Rh4 c2 Nf3 g1Q+ Bg2 f1N Nd4 Ng3 Be4 Qe1 Bc3 Nh1 Nc6+ Kc7 Ra8 Bb7 Ra3 Rb2 Na7 Bd5 Bd4 Kd8 Rf3 Nh6 g8B Nf5 Bf7 Ng7 Bc3 Rg8 h8Q Nge6+ Kh7 Nc7 Beg6 f5 Qg7 Na8 Qh6 Qe6 Bh8 Qb6 Rb1 a1Q Ra4 Bb7 Bb3 Bd5 Rh4 Qaa6 Ra1 e6 Ra2 Bd6 Raa4 Qaa5 Rfh3 Qac3 Rf3 Qb7 b6 Qf6 Rhh3 Qc7 b7 Qb6 b8Q+ Ke7 Qe3 Rc8 Rhh4 Kd8 Qc3 Ra1 Qcd2 c1N Qh6 N1d3 Qb7 Rab1 Qa6 Rc1 Rac4 Nhf2 Qa1 Nh1 Ra4
1RK3k1/7b/B1p2Rbr/n2pR1Q1/2Q1Q1Pn/2Nn2q1/B1P3qb/qrBb4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 g5 d4 gxf4 Nc3 exd4 Ne4 h4 Ng3 hxg3 Kd2 d5 Kd3 f5 e4 Kf7 b4 a5 h4 f3 b6 g2 h5 a4 b5 a3 h6 a2 h7 f4 e5 f2 b7 f3 b6 Ne7 Rh3 Nf5 Rh1 Nc6 b8R Qh4 b7 Qg3 Rh6 Nh4 Qd2 Bd6 Qg5 Na5 Ne2 g1N Nc3 Ne2 e6+ Kf8 Rb1 a1Q e7+ Kf7 e8B+ Kf8 Bh5 c6 Bg6 Ra6 Be4 Rb6 Re6 Kf7 Re5 Bf5 Rb4 Bg6 Rb3 Re8 h8Q Re6 Qe8+ Kg7 Ra3 Rb1 Rb3 Rf6 Qe6 Kh7 Rf8 Bc7 b8Q Kg7 Qb4 Nf4+ Kd2 d3 Ke3 d2 Kd4 d1B Kc5 Bd6+ Kb6 Nd3 Qc4 Bb8 Be2 f1Q Qef5 Rd6 Rf6 f2 Bg2 Kh7 Qfe4 Kg8 Rb4 Qh1 Bgf1 Qhg2 Rb2 Rd7 Rb3 Rh7 Ka6 Rh6 Rb4 Nb3+ Kb7 Na5+ Kc8 Q3f3 Ref5 Bh2 Re5 Qf4 Rb8 Qfg3 Qa4 Nb2 Bc4 Nd3 Be2 f1B Ba2 Nc5 Bb5 Bd3 Qec4 Be4 Ba6 Nd3 Qe3 Bh7 Qg5+ Beg6 Qab4 Qh1 Qe4 Qhg2 Qbc4
R4KBr/2PQnQ1R/2n1p3/bpr1P3/2QNn1kn/bb1B1bB1/8/1R3qn1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 f5 cxd4 Nd2 g6 Nc4 Qa5 Ne3 Qb6 fxg6 Qc7 g5 Qd8 Ng4 hxg4 Kf2 Rh5 Kg3 d5 Kf4 Kd7 Kf5 b5 c4 b3 e4 b2 h4 b1N a4 d3 c5 d2 a5 g3 g7 g2 a6 d4 a7 d3 Ba3 Nc3 Ra2 Ne2 Qc1 d1N Nh3 g1B Ke5 f5 g6 f4+ Ng5 f3 Rc2 f2 Rb2 d2 Rb1 Ne3 Qc4 d1B Bc1 e6 c6+ Ke7 c7 Nf5 Nf3 Bb7 Bf4 Bb3 Bg3 Qd1 Rh3 Rg5 h5 Qe1 h6 Rh5 Bg2 f1N h7 Bb6 h8Q Ba5 Qh7 Nd2 Nd4 Ng1 Bf1 Bd5 Bd3 Nc6+ Kf4 Rc8 a8R Kf6 Rh1 Ba3 Rh2 Ngh6 g8Q Rf8 Qd7 Qf1+ Nf3 Rg5 g7 Rh5 Qh7 Rh8 g8B Rg5 Rh5 Nh4 Qhe7+ Kg6 Qf8 N6f5 Rh7 Rh5 Kg4 Nfe7 Nd4 Nd8 Qf3 Bb7 Qf4 Rc5 Qf8 Bd5 Qfe8+ Kf6 Kh5 Ndc6 Kh6 Ne5 Be1 N5c6 Qg6+ Ke5 Kg7 Kf4 e5 Bf3 Qf7+ Kg4 Kf8 Ne4 Bg3
b2r2q1/3r3k/n1N2b2/1Q3r1R/brnP4/p1Bp1N2/2NP1KBB/3r1bQQ b - - 0 1 illegal: No proof kernel
3r4/1r1Rp1kr/1N3q2/b2QPbbb/rnB3Br/2Q1B3/1Nn1pPQ1/1K5N b - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 e4 g5 h4 gxh4 e5 b5 axb5 Qc7 Ra3 Qb6 Re3 Qd8 Re4 fxe4 Kd2 Kf7 g4 h5 c4 d5 Kc2 a5 g5 d3+ Kb2 d4 g6+ Kg7 c5 h3 b6 e3 b5 h2 c6 a4 c7 d2 b7 h4 b6 h3 Qf3 d1B Bd3 a3+ Ka2 Na6 b8N Nb4+ Ka1 a2 b7 Nf6 Bf5 d3 Qe2 d2 Qc4 Rh7 Ne2 Nc2+ Kb2 Nd5 Ng3 Bh5 Nc3 d1R Na4 a1B+ Kb1 e2 Nd7 Ndb4 b8Q Bc3 Ndb6 Qd6 Nb2 Qf6 Qb7 Rd8 Qg2 Ra4 Rd1 h1R Be3 h2 Bg4 Bf5 c8Q Rf1 Q8e6 h1R Qed5 Rh4 Qcc6 Rfh1 Qcc5 R1h3 Nh1 Rf3 Qcc4 Rf4 Qb3 Rc4 Rd3 Rc7 Qbc4 Be1 Qc3 Rb7 Rd1 Kh8 Rd3 Bh6 Rd1 Bg5 Rd4 Rh6 g7+ Kh7 g8B+ Kg7 Qa5 Bd2 Rd7 Rh7 Qad5 Na6 Qcd3 Ba5 Qc3 Nab4 Qd1 Be8 Bc4 Bh5 Qdd5
q1b1rQB1/k2r4/3p1pQ1/R5q1/q3BP1R/qn1K1Rq1/2NP1b1B/2r3qQ b - - 0 1 legal: proof: c4 b5 b4 g5 h4 gxh4 Nf3 a5 Na3 axb4 Nb1 b3 Ng1 b4 Rh3 Nc6 Rh2 Ra3 Rh1 Ra8 Nc3 e5 Nd5 Na7 Nf4 Nb5 cxb5 Ra4 Ng6 Ra8 f4 e4 Ne5 Qe7 Nef3 exf3 Nh3 Qg5 Ng1 Qd8 a4 c5 e4 h5 g4 b2 b6 b1R a5 b3 g5 c4 e5 f2+ Ke2 b2 a6 h3 e6 h4 e7 h2 b7 h3 b8R c3 a7 c2 g6 Rh7 g7 Nf6 g8Q Ne4 Rb4 Nc5 Ra6 Nb3 Bg2 f1Q+ Ke3 Qc4 Rb5 Qa4 Rab6 d6 Re5 Kd7 e8B+ Kc7 Be4 Qg5 Rd5 Be7 Rc6+ Kb7 Nf3 f6 Rdc5 Bd8 Ra5 Bb6+ Kd3 Bf2 Nd4 Rd7 Qg6 Ra1 Qdh5 b1Q Bb2 Qbg1 Bf7 c1Q Bg8 Q1g3+ Qf3 Qcg1 Nc2 Rc1 Bd4 Qa3 Be3 Qd1 Rcc5+ Kb6 Rf1 h1Q Bd4 Rb8 a8Q h2 Be3 Qhg1 Qh1 Be1 Rf3 Bf2 Qg2 h1Q Qh3 Qhg2 Qh1 Bb7 Bd4 Rf8 Qae8 Bc8 Qe7 Rfd8 Qf8 Re8 Be3 Qd5+ Bd4 Qa8 Rd5+ Kb7 Rh5+ Kb8 Rac5 Ka7 Rh4 Be1 Bf2 Qg5 Bg3 Bf2 Bh2 Q2g3 Rd5 Qe2+ Kc3 Qea6 Re5 Q6a5+ Kd3 Q5a4 Ra5+
1n2R2n/1Qbb2K1/4Qp2/1qpp1PN1/2kB2qq/P3nBNB/1r1r2Nr/4Q3 b - - 0 1 legal: proof: c4 a5 h4 g5 b4 gxh4 Rh3 axb4 Rh1 d5 cxd5 e6 d4 Kd7 a3 Qf6 d6 Ra5 d5 Ra8 Ra2 Qd8 Rd2 Ke8 d7+ Ke7 Rd4 Kd6 Rd2 Kc5 d6 Kc6 Rd5 exd5 Kd2 Kb5 Kd3 h5 Kd4 c5+ Ke5 b6 g4 b3 f4 b2 f5 h3 g5 h2 g6 h4 g7 h3 Nf3 Ra4 Be3 Qh4 d8N Ne7 g8Q Qg4 Kf6 Bd7 Nbd2 b1Q Qe1 Rd4 Nh4 Ng6 Ne4 Kc4 Ng2 b5 Ne6 b4 Ng3 b3 Ng5 Rd2 Bd4 b2 e4+ Qd3 e5 b1R e6 Rbb2 Rg1 h1Q e7 h2 e8B Rh7 Qg7 Nh8 Qg6 Rh4 Qh7 Be7+ Kg7 f6 Bh5 Bd8 Qg8 Bc7 Qge6 Qh3 Bf3 Qg4 Nf4 Rh5 Bh3 Qb3 Rg2 Qb5 Re2 Rh6 Ng2 Rh4 Qb1 Qe1 Qd1 h1N Re5 Qee4 Qe1 Qef4 Re3 Nf2 Re4 Nd1 Re2 Be8 d7 Ne3 d8Q Bd7 Qc8 Rh6 Qb7 Qh4 Qbb6 Qfg4 Qb7 Nd1 Qf7 Qhh5 Re8 Ne3 Qe6 Kd3 Nf4+ Kc4 Bhg2 Qhh3 Nge2 Qhg3 Bf1 Rh1 Bh3 Q3h4 Ng3 Rhh2 Ng2
2r3Q1/K3BqbQ/1n4p1/1kpNNbq1/R1b3P1/1Q5P/1p1q1R1R/1r1N1n1r b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 h5 g3 a5 Nc3 axb4 Bg2 h4 Nb1 h3 Qc2 hxg2 Qb3 Bh3 Qd1 Bc8 Kf2 Kd7 d4 b5 e4 f5 a4 f3 Ke3 f2 e5 f1B a5 b3 d6 Kc6 d5+ Kc5 e6 c6 e7 b4 e8Q g6 a6 b2 h3 b3 g4 Rh6 d7 Bc4 a7 Kb5 Kd4 f4 d6 f3 Rh2 f2 Qe7 f1Q Qh7 Ne7 Nf3 Bg7+ Ne5 Qf7 Bg5 Nd5 Be7 Ne3 Ra4 g1Q Rf2 Qa5 d8R Bf5 d7 Qh2 Rf8 Qg2 d8Q Nf1 Qc2 Nd7 Nc3+ Ka6 Qb8 b1R Nd1 b2 Qcb3 Nb6 Qd8 Rc8 a8N Rh5 Rd2 Qe2 Rc2 Qe1 Rh2 Qh4 Qd5 Qg5 Qe6 Bb5 Kc5 Bc4+ Kd6 c5 Nc7+ Kb7 Nd5 Ka6 Qg8 Rh8 Qh7 Re8 Kc7 Ra8 Qc3 Kb5 Kb7 Re8 Qa3 Qad2 Ka7 Rd8 Nf4 Rd3 Nd5 Rg3 Qe3 Rg1 Qd3 Rh1 Qa3 Qff6 Qeg8 Qe6 Rf6 Qf7 Qa2 Be4 Rff2 Bf5 Qa8 Rc8 Qa3 Rc6 Qag8 Rc8 Qb3+
1Q1r1B2/kq1N4/bRp3NK/r7/p2pQ3/1nP3BP/1qB2b2/1b1NQnqn b - - 0 1 legal: proof: d4 h5 b4 e5 g4 hxg4 a3 exd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Bd6 Bg2 Bc5 Bf1 Bf8 Kd2 d5 e4 Kd7 f4 a5 h3 g5 c3 g2 b6 Kc6 f5 Kb7 b5 g3 e5 g4 f6 a4 f7 d3 Ke3 c6 Kf4 d2 e6 Nh6 e7 Qc7+ Kg5 Nf5 e8N Bc5 f8Q Na6 Nf3 g1Q Be2 g2 Ne5 g3 Ba3 Qf2 Nf6 g1N Bd3 g2 Bc2 Ne2 Qe8 Neg3 Nfd7 g1Q Qe1 d1B Ng6 Ne3 Qe4 Rd8 Nd2 Nef1 Nc4 Qb8 Rh2 Nh1+ Kh6 Qe2 Rg2 Bf2 Ne3 d4 Bf8 Nc5 Rg5 Ra6 Rh5 Ka8 b7+ Ka7 Re5 Ra5 b6+ Ka6 Rh5 Nb3 Rb5 Qa8 b8Q Qb7 Rb4 Qd2 Rb5 Be2 Rb4 Bd3 Rb5 Qc1 Rb4 Qb2 Nd1 Qa7 b7 Qa8 Qc7 Ka7 Rb6 Ba6 Nb8 Bf5 Nd7 Qc8 b8B+ Ka8 Qh4 Qb7 Qc8 Bfd3 Bg3+ Ka7 Qhe4 Na1 Bb3 Bb1 Bc2 Nb3 Qb8+
K4n2/1p5q/2Rn1rqR/6n1/bPBrkPqp/1N1p4/Qb1Q2R1/1QB2B1r b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 d4 c5 Nd2 cxd4 Nb3 f5 exf5 a4 Be3 axb3 Bf4 Nh6 Bc1 Ng8 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 h5 c4 e5+ Kf3 h3 g4 b2 a4 b1Q a5 e4+ Kf4 h2 a6 e3 a7 e2 c5 e1N c6 d3 c7 d4 Nf3 d2 Ra2 Bd7 c8R Qe8 Rc6+ Qe6 Qc2 d1R Nd2 Ne7 Nb3 Nf3 Qd2 Bg7 Rb2 Nc8 g5+ Ke7 g6 Kf6 Rbc2 Ng5 f3 Nd6 Ra2 Bh6 g7 Rh7 g8B Bg7 Bf7 Be8 Rb2 Nd7 Rbc2 Rd8 a8Q Nf8 Qa2 Rh6 Bg8 Qc8 Bgc4 d3 Ke3 Ke5 f6 Qg4 f7 Rf6 f4+ Kf5 Kd4 Bd7 Kc5 Ke4 Kb6 h4 Rg1 h1Q Ka7 Qhf3 Rb6 Ba4 Rg2 Qb2 Qb1 Qfg3 Ra6 Qe5 Rc6 Qef5 Rc3 Rd7 Ka8 Qh7 Rb6 Rg6 Rc2 Bb2 Rc6 Rf6 Rc3 Nfe6 f8Q Re1 Qf7 Nf8 Be2 Rh1 Bf1 Nb5 Qg8 Rd4 Rd6 Rf7 Rh6 Nd6 Be6 Rf6 Rc6 Qgf5 Bc4 Qgg4 Qf7 Qe6 Qc7 Qeg8 Qa5 Qgg6 Qa6 Bb5 Qaa1 Ba4 Qaa2
3nRK2/1RQbpQ1N/1BPn2pn/3bq2N/1r1b1R2/3pP3/3Qk3/N2b2br b - - 0 1 legal: proof: f4 b5 g4 c5 a4 g6 d4 cxd4 axb5 Bb7 f5 Bc8 g5 Nh6 Bg2 Ng8 Be4 gxf5 g6 f4 g7 Nh6 Bd3 Ng8 Bg6 hxg6 Kf2 a5 Kf3 d5 c4 Kd7 Kg4 Ke6 Kg5 Ke5 h4 Ke4 b4 f5 h5 d3 c5 d4 h6 a4 b6 f3 b7 f4 h7 d2 b5 Ke3 b6 f2 Rh4 f1B Nh3 f3 Nf4 d3 Nh5 a3 Rf4 a2 Na3 f2 Rb1 Nc6 b8R a1B b7 Nh6 g8Q Bg2 Qf7 f1N Rb3 Bf3 Nc2+ Kf2 Rbb4 Bd4 Na1 Qa5 e3 Nd8 Bb2 Bd7 Rb6 Qc3 c6 Ng3 Qc1 d1B Qd2+ Kf1 Ba3 Ra4 Bc5 Ngf5 Rb2 Ra8 Bb6 Ra4 Ra8 Bfg7 b8Q Bde5 Qc7 Rb4 Rb8 Nd6 Rb7 Rf8 h8N Bd4 Ra2 Bge5 Ra8 Rg8 Rf5 Bh2 Rf4 Bg1 Rc8 Nhf5 Ra8 Qc5 Rab8 Qe5 Ra8 Nh4+ Kh6 Nhf5+ Kh7 Nh6 Rc8 Ne6 Re8 Nd8 Qf5 Ng4 Nf7 Nh6 Ng5 Rf8 Qf7 Rg8 Nf6 Rh8+ Kg7 Rh7+ Kf8 Rh8+ Qg8 Rh7 Nh5 Rh8 Qc3 Ke2 Nh7 Bd5 Ng7 Nd6f7 Nf6 Ng4 Qc1 Rh2 Nh7 Nd6 Qf7 Nh6 Nh5 Rh1 Qd2+
R1b1b3/2q1pkb1/B1N1Rp2/1Q2Rrn1/1QP1BP2/BQ2p3/1Knbn3/3r1r2 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 g5 Nc3 gxh4 Na2 dxe4 axb5 Bd7 b6 Be6 b5 Bc8 Nb4 cxb4 f4 a5 d4 h5 Kd2 b3 Kc3 h3 g4 a4 d5 e3 d6 f6 g5 h2 d7+ Kf7 b7 a3 b6 b2 Ne2 b1R Qd4 a2 Qe5 h4 Bg2 h3 Qf5 Ra5 Be4 Na6 b8Q Nb4 b7 Bg7 Qb5 Nh6 Ba3 Rf1 Kb2 Qc7 Nd4 Rd8 c4 Nc2 g6+ Kg8 Nc6 Nf7 Rg1 h1N Rg5 h2 Re5 Ng3 Rd1 h1B Rd6 Kf8 Rde6 Ng5 Qb3 Ne2 Qb5 Bh6 g7+ Kf7 Qb4 Bf3 Qb3 Bh5 g8B+ Kf8 Bgh7 Bg7 Bhf5 Be8 Qb4 Kf7 Qb5 Qb6 Qd6 Qa7 b8Q Qc7 Qb3 Rd5 Q8b5 Rdd1 Qdb4 a1B+ Ka2 Bc3 Bg4 Be1 Kb2 Bd2 Bgf3 Ba6 Bg2 Rb8 d8R Rb6 Ra8 Bc8 Nd4 Rd6 Bb7 Rc6 Ba6 Rc5 Nc6 Rd5 Re4 Rf5 R4e5 Rf2 Bf3 Rff1 Be4
1R1Q4/3p2RK/2BQPB2/r3Rn1N/b2r4/2nQqp1q/2q1qPpB/b3k1q1 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Kd2 exd4 Nc3 d3 Ke1 c6 Nd5 cxd5 Bg5 d4 Bd2 Nc6 Bc1 Nb8 Kd2 Ke7 e4 Kf6 b4 Kg5 c4 Kf4 h4 g5 c5 a5 e5 f5 b6 g3 c6 g2 b7 g4 b5 g3 e6 a4 b6 a3 c7 a2 h5 Nc6 b8Q Bb7 h6 Bg7 h7 Nb4 Rh2 Ra5 Rh1 Qg5 Rb1 a1Q Qe8 Nd5 c8Q Qa3 Rb3 Nh6 Qc6 Nc3 Rb5 Qh4 Qa8 Qh3 Qd8 Qb3 Qc4 Bc6 Re5 Ba4 Ne2+ Kf3 b7 g1Q b8R f4 Bb2 Rf8 h8B g2 Qb4 Rf6 Qd6 Nf5 Qb1 Rg6 Ng3 Rg4 Nh5 Qb6 Ba3 Bf6 Bc5 Qa7 Bb6 Rh4 Bc7 Qc5 Kc1 d2+ Kb2 d1Q Bb5 d3 Bc6+ Ne4 Rh2 d2 Qbd3+ Qe3 Rh1 Qe2 Bg7 Bg5 Bf6 Bh6 Rh2 Bg7 Rh1 Bb5 Kb3 Ba4+ Kc4 d1Q Rh2 Ra8 Kd5 Qec2 Qd4 Ke2 Qd3+ Ke1 Rh1 f3 Rh2 Qg4 Rh3 Bh8 Rg3 Qh3 Rg7 Qdd2 Bb6 Qee2 Be3 Ra7 Bf4 Qde3 Bh2 Ra5+ Qb5 Nc5 Qd3 Rc4 Re4 Rd4+ Ke5 Q3d2 Re3 Ne4+ Kf4 Nc3+ Kg5 Qdc1 Kg6 Q1d2 Re5 Qde3 Kh7 Re4 Bh4 Nd5 Re7 Rf4 Re4 Ba1 Bf6 Nc3 Re5 Rd4 Rg7
1r1b3q/1B2R2n/1rp2pN1/q1B2k2/N1Q3qP/1Bqp1PQ1/2nQ2bK/2N2q2 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 hxg4 c4 e6 d4 dxc4 d5 e5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 e4 Kd7 h4 a5 f3 g5 Kf2 a4 Kg2 g3 d6 Ke6 d7 d3 e5 c6 b6 c3 b5 g4 b7 c2 b6 a3 Qd2 a2 Ne2 a1Q Ba3 c1Q Nbc3 Na6 b8N Nf6 b7 Nb4 Na4 Kf5 e6 Nc2 e7 Nh7 e8B f6 Bc5 Ra6 Bf7 Be7 Bb3 Rb6 Rg1 Qe1 Nc1 Qc3 Kh1 g2+ Kh2 Qe8 d8Q Qh5 Qe8 Bd8 Nd7 Rf8 b8Q g3+ Kh3 Qee5 Qf7 Qd5 Rh1 g1Q Ne5 g2 Ng6 Qf2 Qbc7 g1Q Qg3 Rg8 Bg2 Qff1 Rh2 Qde5 Qc4 Qa5 Rh1 Qec3 Rh2 Rf8 Rh1 Qgd4 Kh2 Qdg4 Bh3 Qh6 Rg1 Qg7 Rh1 Qh8 Rg1 Rf7 Rg2 Rfb7 Re2 Rb8 Re7 Be6 Nf4 Ke5 Qd1 Qgg8 Qd2 Qgg7 Rd7 Bf5 Bg4 Qgg8 Re7+ Qe6 Bh5 Bh3 Be8 Bg2 Bd7 Qa7 Bc8 Qaa5 Rf7 Qf5 Bb7 Qg4 Ng6+ Kf5 Re7
b1NB2r1/r1RN4/6QN/PpRnnqpr/R3qkPp/Q3bn2/K7/5Q1n b - - 0 1 illegal: No proof kernel
4NQK1/1r1p1BR1/Pqkn1Q1b/5p1N/b4P1Q/B1Bq1p2/1Nq2b2/nr5b b - - 0 1 legal: proof: b4 c5 a4 a5 d4 cxd4 f4 axb4 g4 e5 Ra3 h5 gxh5 e4 Rf3 exf3 Kd2 f5 Kd3 b5 e4 g5 h4 g4 c4 b3 e5 b2 c5 b4 a5 b3 h6 g3 c6 g2 e6 Ra7 h7 Bb7 c7 Nf6 c8Q Na6 e7 Bh6 h5 Ne4 Ne2 g1B Qe1 Bf2 Rg1 Nd6 Ng3 Rg8 Qc6 Qb6 h8B Rg6 Nd2 b1Q+ Qc2 b2 Nc4 Qa2 Qcc3 Bc8 Bg7 Rb7 Be5 Kf7 e8N Ke6 Bh8+ Kd5 Qb4 Nf7 Qf8 Kc6 Qe5 Re6 Qf6 Nd6 Qh4 Re1 Bf6 Bg7 h6 Qa4 h7 Bh6 h8Q b1Q+ Kd2 d3 Kc3 d2 Nh5 d1B Ba3 Nb4 Nb2 Nc2 Bc4 Qab5 Rg7 Na1 Bf7 Ba4 Bd4 Qe4 Qf6 Rb1 Qh4 Bg5 Qh6 Qbd5 Qf6 Bh6 Be5 Rc7 Bd4 Ba6 Be5 Bf1 a6 Bg2 Bd4 Qee5 Kd3 Qdb3+ Bc3 Rb7 Rg3 Qba5 Qg6 Be1 Rg4 Qe2+ Kd4 Qf1 Rg5 Qab6+ Ke5 Qc2 Kf6 Bh1 Rg2 Bg5+ Kg7 Bh6+ Kg8 Bf2 Qgf6 Qfd3 Rg7
Nb2n3/4q1Q1/pB2pN2/Pr2PkR1/B2B2pK/N2r2n1/b1q3r1/n1QQ2r1 b - - 1 2 legal: proof: c4 c5 b4 h5 a4 f5 g4 hxg4 Ra3 f4 Rg3 fxg3 bxc5 d5 Ba3 dxc4 Bb2 Nh6 Bc1 Ng8 f4 Kd7 e4 Ke6 d4 b5 h4 g5 c6 c3 c7 g2 Kf2 c2 Kg3 a6 e5 b4 a5 b3 h5 b2 h6 Kf5 h7 e6 d5 Ra7 d6 Bb7 c8Q Qe7 d7 Nf6 d8B Bd5 Ne2 g1N Nec3 Ne8 Ne4 Rg8 h8Q Nd7 Na3 b1R Qg7 Rb5 Bb6 Nc5 Be3 c1Q Rh6 Ba2 Bd4 Rd7 Nf6 Qc2 Rg6 Nb3 Bc4 Na1 Bb3 Rd8 Ba4 Rdd5 Qc3 Rd6 Qb2 Rd8 Qbc1 Ne2+ Kg2 g3 Kh3 g4+ Kh4 g2 Bdc5 g1R Bd4 Qd7 Nd5 Ng3 Nc7 Bd6 Na8 Ke4 f5 Qe7+ f6 Bb8 Bf2 Rd2 Bfd4 Qd6 f7 Kf5 f8N Rdg2 Nh7 Rf8 Ba7 Rf7 Bac5 Rd7 Nf6 Qe7 Bb6 Rdd5 Be3 Rdd2 Bed4 Rd3 Rg5#
1r4k1/2bR1NNQ/3qRK1n/p5Q1/P2Ppn2/RQ1pN3/1b1r2B1/n1qb2b1 b - - 0 1 illegal: No proof kernel
2b1N3/4pp2/1nn1P3/5P2/b1b1QbRk/1qQ2p1N/n2rR1qr/KNRB2Q1 b - - 0 2 legal: proof: f4 c5 d4 cxd4 a4 b5 g4 h6 axb5 Nf6 f5 Ng8 g5 hxg5 Bf4 gxf4 Kd2 a5 Kc1 g5 h4 d5 e4 f3 c4 g4 b4 g3 Kb2 d3 b6 a4 b5 g2 e5 d4 b7 a3+ Ka2 d2 c5 d3 e6 Nc6 b8N Nf6 h5 Qd5+ Qb3 d1B b6 d2 b7 Be2 h6 d1B h7 Bh6 Rh4 Bc4 Nh3 g1Q Rg4 Nd7 Na6 Nb6 b8R Qg2+ Be2 Bf4 Nc7+ Kf8 Ne8 Ra7 Ra8 Rd7 Ra7 Bc2 Bd1 Rd8 Rd7 Qd3 Rd4 Qe3 Re4 Rd2 Nc3 Qd3 Rc1 Qd5 Ka1 a2 Qb1 Ba4 Qc2 Qd3 Nb1 Qe3 Kb2 a1N Re5 Qd3 Re2 Nb3 Ka2 Nba5+ Ka1 Qb3 Qe4 Nb4 c6 Na2 c7 Nc6 Ng5 Bb7 c8Q Bba6 Nd6+ Kg7 Qg8+ Kh6 Ne8 Kh5 Nh3 Bc8 Qg7 Rg8 Qc3 Rg7 h8Q+ Rh7 Rg8 Kh4 Qhd4 Rg7 Qg1 Rg3 Nf2 Rh3 Rg3 Rh1 Nh3 Rh2 Rg4+
2k2r1Q/1Bb5/N1p2p2/P2n4/1QQ3NK/n1r1BPrN/2b1Rpb1/1Bqb1q2 b - - 0 1 legal: proof: d4 a5 a4 g5 h4 d5 b4 axb4 c4 e5 a5 e4 Bb2 e3 Qc2 Qd7 Na3 Qc6 Kd1 Qb6 cxd5 gxh4 g4 Ke7 f3 Qf6 g5 Ke8 Rh2 Qd8 Rf2 exf2 Kc1 Qe7 Bg2 Qf6 Nh3 Ne7 Kd2 Kd8 Rh1 Ke8 Bf1 Qd6 Ng1 Ng8 Kd1 Qd8 e4 Kd7 Ke2 b5 d6 h5 e5 f6 g6 b3 d5 c6 g7 h3 Nc4 h2 Qd3 b4 Bc3 b2 Nh3 b1B Ke3 h4 Kf4 b3 Kg4 b2 Bd4 Na6 Be3 Ne7 g8B Bc2 Bh7 b1R Be4 Bb7 e6+ Kc8 Ne5 Nb4 Qc4 Rc1 Rg1 Bd1 Bb1 h1B Bfd3 Nc2 Re1 Rh7 Re2 Rg7+ Kh5 Bg2 Ng4 Ba6 d7+ Kc7 Bf5 Na3 d6+ Kb7 Bfd3 Nd5 e7 Rc3 e8N Bb5 Bf5 Bba4 Nc7 Bac2 Na6 Qb6 d8Q Qc5 d7 Bd6 Bd3 Bc7 Qe7 Rf8 d8Q Qb5 Qeb4 Rg6 Nf4 h3 Kh4 h2 Nh3 h1Q Qe8 Rg5 Qh5 Qe1 Qh8 Qd2 Bf5 Qc1 Bd3 Kc8 Bf5+ Kd8 Bc8 Rg6 Bb7 Rg7 Ba8 Kc8 Qa2 Qd3 Qac4 Rg6 Re1 Qf1 Re2 Rgg8 Nh2 Rg3 Ng4 Qe1 Ba2 Qh1 Bb1 Qf1 Bb7+
4b1q1/2K3b1/2ppbn1n/BQPP1b2/3N1Q2/2NbRp2/4QB1r/b2r1NkB b - - 0 2 legal: proof: f4 e5 h4 exf4 b4 g5 a3 gxh4 a4 b5 axb5 Qf6 Ra4 Qd4 Ra1 Qxa1 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 a5 c4 f6 d4 d6 c5 f3 b6 f2 b7 h3 b5 h4 g5 a4 g6 h2 b6 h3 g7 a3 Nf3 a2 Be3 Nd7 Bg2 f1B b8B Rh7 Rg1 h1B b7 h2 Nfd2 Ra5 Nc3 f5+ Kf3 f4 Ke4 Kf6 Kd5 Kf5 Kc6 Kg4 Bf2 Ndf6 e4+ Be2 Rf1 Bf5 Re1 Ra7 Qb3 Bd3 e5 Qd1 Qb5 Qb3 Be4 Kh3 e6 Bg2 Bf3 h1B Bd5 Kh2 e7 Bge4 e8Q Bc4 Qe7 Bed3 Re4 Kg2 Nf1 Rh2 Qe5 Nh6 g8Q+ Bg7 Qge6 Ra4 Ba7 Rb4 b8N a1B Bb6 Qa2 Ba5 Rb1 Qe8 Rd1 Qh5 Qb3 Qe2 Qa2 Kb7 Bb3 Bc6 Bf7 Bd5 Be8 Bc6 Qg8 Re3+ Bde4 Bd5 Be6 Nc6 Bf5 Nb4 c6 Kc7 Be6 Nc2 Bf5 Bf7 Bd3 Bh5 Be6 d5 Bdf5 Nd4 Bd3 Bg3+ Kg1 Bf3 Bg2 Qg5 Bgh3 Bh1 f3 Qf4 Bhf5 Bf2+
qr1B1QbB/bbpB2K1/R1n3P1/8/prP2n2/1pNr2R1/Q3Q1R1/kb3r2 b - - 0 1 illegal: No proof kernel
2bkqnR1/8/1nqr1q2/R1b2p1B/3N1Ppq/2n2NQ1/RnKQp1P1/1N2Q3 b - - 0 1 legal: proof: e4 d5 b4 dxe4 b5 c5 b6 c4 Nh3 axb6 Ng1 b5 Ba3 b4 Bb2 Ra5 Bc1 Ra8 h4 g5 Nc3 b5 Nce2 c3 Bb2 cxb2 Nc3 g4 Nb1 Ra6 Na3 Rg6 Nb1 Rg5 hxg5 Qd7 Na3 Qd4 Nb1 Qd8 f4 e5 a4 h5 d4 f5 Kd2 e3+ Kd3 h4 c4 b3 d5 e2 g6 e1Q d6 h3 a5 e4+ Kd4 h2 c5 e3 Kd3 b4 g7 Ne7 g8Q Ng6 c6 Qf6 a6 Nd7 c7 Nb6 a7 Rh6 a8Q Kd7 Nd2 b1N Qad5 b2 Ra2 b3 Ngf3 Na3 Nb1 Nac4 Qe2 Ke8 d7+ Ke7 Rg1 h1Q d8N Qhh4 Ne6 Ke8 Qg7 Bc5 Ned4 Nf8 Qd2 Qc6 Qe4+ Re6 Ra5 Qf6 Be2 Qeh4 Qh8 Ke7 Rc1 Ke8 Rc2 Kd7 Kc3 Rd6 Qed3 Ke7 Qe1 Ke8 Qdd2 Kd7 Bd3 e2 Be4 Ke7 Bd5 Qe8 Bf7 Kd7 Na3 b1Q Bh5 Qc1 Nb1 b2 Qg8 Na4+ Kd3 Ncb6 Qb3 Ke7 Na3 b1N Ra2 Nbc3 Nb1 Qa3 Kc2 Nb2 Ra6 Qaa4 Ra5 Qac6 Qa3 Bd7 c8R Be6 Rb8 Bc8 Rba8 Ncd5 Qae3+ Kd8 Q3f2 Nc3 Qg3 Ba3 R8a7 Bb4 Rg7 Bc5 Rg8
n2q2B1/1Q1N1rPN/2rr1pKB/1nQ5/2B1p1Rp/4Q2P/p4n2/q1bNkb2 b - - 0 1 legal: proof: b4 c5 a4 b5 d4 cxd4 axb5 f6 e4 Kf7 f4 Ke6 e5 Kd5 f5 fxe5 f6 e4 f7 Kd6 Ra6+ Kc7 Rf6 gxf6 Qf3 Kd6 Qd3 Kc7 Qd1 Kd6 Kd2 Kd5 g4 a5 b6 e5 b7 h5 c3 e3+ Kd3 a4 h3 e4+ Kc2 h4 b5 e2 g5 Kc4 b6 d5 g6 a3 g7 d3+ Kd2 a2 Ke3 e1Q+ Kf4 d4 Qf3 Ba3 f8Q Ra6 Qe3 Nc6 b8N Nge7 b7 Na7 Nf3 Rc6 Rg1 Nb5 Nd7 Nd5+ Kf5 Nb6 b8Q Ba6 Ng5 Na8 Rg4 Bb2 Qfd6 Rf8 Kg6 Rf7 Qb7 Ba3 Bd2 Bc1 Qc5+ Kb3 c4 Kc2 Nh7 Kd1 Bb4 d2 Nc3+ Kc2 Ba3 d1N Be2 Nf2 Nd1 d3 Bb2 d2 Be5 Qg1 Bf4 Qa5 Bh6 Qb6 Qcd4 Qf1 c5 Qd8 Bc4 Qg1 Nc3 d1R Qe5 Rdd6 Nd1 Rb6 c6 Qe1 c7 Rbc6 c8B Qc3 Qf3 Qb2 Qc5 Qa1 Ne3+ Kd2 Nd1+ Ke1 Qd3 Re7 Bg8 Rf7 Qb3 Nd4 Qe3+ Be2 Ne5 Nb5 Be6 Qf8 Nd7 Qd8 Qea3 Bd3 Bc4 Bf1 Qae3+
1Nb3rq/6pn/2kPRbPB/2Np1R2/1nbQR1r1/p3Q2K/p1Nq4/5rQ1 b - - 0 1 illegal: No proof kernel
1rn1BRQ1/8/1Pr1pq1R/k1Nn2Bn/p3P2Q/b3q3/pRbb3p/B2Q3K b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 gxh4 Na3 f5 Nc2 f4 Ne3 fxe3 g4 Kd7 b4 a5 d4 c5 f4 Kc7 d6+ Kb6 g5 h5 d7 e2 Kf2 e1Q+ Kg2 c4 g6 h3+ Kh2 c3 d5 e6 b5 h4 d6 c2 f5 a3 g7 a4 f6 a2 f7 Qe3 Qh5 Ba6 Qh7 Ka5 b6 Nf6 g8Q Nc6 Bb2 c1B Bb5 Bd2 Nf3 Rc8 Ne1 Na7 Rb1 Nd5 Nd3 Qf6 d8Q Rc6 d7 Nc8 Ba1 Bc5 f8R Ba3 Qg3 Rg8 Nc5 Rh8 Rb2 Rg8 Be2 Bd3 Bh5 Bc2 Be8 Rh8 Qf2 Rg8 Qg7 Rh8 Kg1 h2+ Kg2 Rg8 Qe2 Rh8 Qd1 Rg8 Qe7 Rh8 d8B Rg8 Rg1 h1N Qg3 Rh8 Qg8 Ng3 Rh1 Nh5 Rh2 h3+ Kh1 Qfd4 Qh4 Qf6 Rg2 h2 Rg6 Rh7 Rh6 Rb7 Be7 Rb8 Bd8 Qff4 Bg5 Qf7 Bf4 Qf6 Bg5
R3bN1K/2q1p3/N1pPbN1n/Bqq1bnQ1/p1R5/2RQPr2/2Q1pk2/4r3 b - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 b5 axb5 f5 e3 g5 Be2 gxh4 Qa4 f4 Kd1 f3 Kc2 fxe2 Kc3 Qd5 Qd1 Qd7 Kc2 Qd8 d4 Kd7 b4 Ke6 f4 Kf5 g4+ Ke4 g5 a5 g6 h5 d5 h3 d6 c6 f5 a4 f6 c3 g7 h4 b6 h2 b7 h3 b5 Ra7 b6 Qe8 f7 Ra6 Ra3 Ra5 Bd2 Bd7 Nf3 Qd8 Nh4 Be8 Ng6 Kf3 Kd3 c2 Rc3 c1Q Qc2 Nd7 b8R Nh6 g8Q Nf5 b7 Bg7 f8Q Nf6 Ra8 Kf2 b8N Ng4 Ke4 Qc7 Na6 Nh6 Rg1 Bd4 Rg4 h1Q+ Kf4 h2 Kg5 Be5 Rgc4 Rc5 Qd5 Rg8 Qg7 Rf8 Qdd3 Qd5 Qf6 Rf7 Nf8 h1B Kg6 Qb2 Qg7 Qb5 Kh7 Qd4 Kh8 Bd5 Qf6 Be6 Qg7 Rf6 Qg5 Qd5 Rb3 Qd4 Ba5 Rd5 Nd2 Qdc5 Rbc3 Rd4 Nb1 Rf4 Nd2 Rf3 Qg8 Rg6+ Qg7 Rg1 Ne4+ Ke1 Nf6 Kf2 Qg8 Re1 Qg5
Kn3k1Q/1Np5/pp1Np2b/Bq2rbrb/R5Q1/3q4/PB1nQ1PN/1B1n4 b - - 0 1 illegal: No proof kernel
1nQ2K1n/1B3Qp1/1R3R1n/1r3Rqb/2pr1b2/1BP1Bq2/pkbQ1pP1/3N4 b - - 0 2 illegal: No possible last move
1b2qQK1/1k6/4p1pp/bR3p2/4N1nN/1BbQNnBr/4rPBP/2b2bQ1 b - - 0 2 legal: proof: e4 b5 b4 c5 g4 f5 a4 bxa4 b5 d5 g5 dxe4 Ra3 Qb6 Rb3 Qa6 Rb4 Qf6 gxf6 cxb4 Ke2 Kd7 Ke3 Kc7 Kd4 a5 Ke5 e3 d4 g6 c4 e2 c5 e1B c6 a3 f7 a4 d5 a2 Na3 b3 Nc2 b2 Bf4 a1B Bg2 a3 Nf3 a2 Bg3 Ba5 Nh4 Ba6 Qg1 b1Q+ Ke6+ Be5 Ne3 Bh6 f8Q a1B Kf7 Nd7 d6+ Kb6 c7 e6 c8B B1c3 Bcb7 Ngf6 Bbd5 Ng4 Ba2 Qe4 Bb3 Kb7 b6 Qf3 Nc2 Qc6 Ne3 Nc5 d7 Nd3 d8Q Ne1 Qd3 Nf3 Qa1 Rd8 Rb1 Bb8 Rb2 Rd5 Qg1 Re5 Rb1 Bg5 Kg7 Qe8 Rb2 h6 Rb1 Rh7+ Kg8 Rd7 Rb2 Kc6 b7 Rc7 Nc4 Re2 Rb1 Bc1 Ne3 Ba7 b8N+ Kb7 Nd7 Bb8 Nf6 Rd7 Qc4 Rd3 Ne4 Qc6 Bf4 Red2 Nf1 Nfe5 Ba2+ Qb5 Rb4 Rh3 Ne3 Nf3 Bb3 Rc2 Bg3 Rb2 Ra4 Qe8 Qd4 Bf1 Qd3 Re2 Rb4+ Ka7 Rb5 Ka8 Re5 Kb7 Rb5+
R2bNqQN/pnn1R1Rp/r2rr2P/1n3Q2/p7/1Q1pn3/PK2b3/3kNB2 b - - 0 2 legal: proof: d4 c5 b4 f5 bxc5 e5 g4 exd4 Bb2 fxg4 Bc3 b6 Ba5 bxa5 Kd2 Ke7 Kc1 Ke6 e4 Ke5 c4 Kf4 h4 g5 c6 d5 h5 d3 c7 g3 f3 Ke3 f4 a4 c5 d4 h6 g2 f5 d2+ Kc2 g4 e5 d3+ Kb2 g3 c6 Nf6 e6 Nfd7 e7 Na6 e8Q+ Be7 f6 Ndc5 f7 Bg4 f8R Be2 c8Q Nc7 Rg8 Nb7 Nf3 g1R Qb3 g2 Qf5 Qb8 Qef8 Bd8 Ne1 Qc8 Na3 d1N+ Kb1 Kd2 Nb5 Qb8 Nd6 Ne3 Kb2 Qc8 Rg7 Rg8 Re7 Rg6 Ne8 Rd6 Rc1 Qb8 Rc2+ Kd1 Qfg8 Qc8 Rh4 Rb8 Rb4 Rh1 Rf4 g1N Rg4 Nf3 Rgg7 Nd4 Rc5+ Nec2 Rce5 Ndb5 R5e6 Rh4 Rf6 Re4 Rf8 Na8 c7 Ree6 Qc4 Ne3 Qcd5 Qd7 c8N Nac7 Qc4 Ra6 Ncd6 Qc8 Nf7 Red6 Qh5 Qf5 Nh8 Qf7 Qf5 Rc8 Nf6 Ra8 Rfe8 Qf8 Qb3+ Kd2 Re6 Be7 Qc4 Kd1 Re5 Rad8 Re4 Rdc6 Qc3 Rd4 Ra8 Bd8 Ree7 Re6 Ne8 Rdd6 Qb3+
Q5N1/1p1Q1p2/BKN2Pp1/2B1Q1n1/q1q2n1p/p4b1r/P1B4n/3RNrkr b - - 0 1 illegal: No proof kernel
r2q4/1Nbq3R/P4p1Q/q1nb2NR/1P1R1k2/B1n5/R1RKn2N/b7 b - - 0 1 legal: proof: g4 e5 f4 exf4 c4 h5 gxh5 d5 cxd5 b5 a3 b4 axb4 Bd6 b3 Bf8 d4 c5 d6 a5 Nd2 a4 d5 a3 d7+ Ke7 Bg2 Ra4 bxa4 a2 Bf3 Qc7 d8N Ke8 Nc6 Qd8 Nd4 cxd4 Rb1 a1Q Bg2 Qa2 Ra1 Qb1 Bh3 Bb7 Bc8 Bxc8 e4 Kd7 h4 Kd6 a5 Ke5 a6 g5 h6 f3 h5 g4 d6 g3 d7 d3 h7 g2 h6 f6 Rh3 Qb3 Ba3 Kf4 e5 Bb7 e6 Bd6 e7 Qa4 e8R Bd5 Ne4 f2+ Kd2 Ne7 Qc1 Qaa5 Ng5 Bc7 N1f3 g1B Nh2 f1Q Rf8 Ng6 Ra2 Bd4 Re8 Qh1 Re2 Ba1 Rg3 Re8 h8R Qf1 h7 Qh3 Rf8 Qf5 h8R Qg4 Rh5 Qf5 Kd1+ d2 Rf7 Rh8 Rge3 Qe6 Kc2 d1N Rfh7 Nc3 Kd2 Qdg8 d8N Kf5 Kd3 Nd7 Nb7 Nf4+ Kc2 Qc6 Rd3 Nc5 Qd2 Qd7 Ne4+ Ke6 Qe3 Qa8 Red2 Nfe2 Qh6 Qf8 Ng5+ Ke5 Nhf3+ Kf4 Nh2 Nb1 Kd1 Nbc3+ Ke1 Qfe7 Rdc2 Ra8 Kd2 Qed8 Rd4+
1q1b2br/2bP1R1n/3R1R2/1B2r2P/R2n3r/1BrQ2K1/2rN4/1n1Rk1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Nc4 f3 Ne3 Rh5 Ng2 fxg2 Ra6 Rh3 Ra1 Rh8 h4 Kd7 d4 Kd6 e4 a5 b4 c5 b6 f5 b5 g5 h5 c4 b7 f4 b6 g4 Ra4 f3 Be3 f2+ Ke2 c3 Bh6 c2 Ra2 c1R Bd2 a4 Rh4 a3 Rh1 Ra4 Rh4 Nc6 b8R Rc3 b7 Be6 Bg5 Be7 Bc1 Nf6 Be3 Bg8 Rc2 a2 Rc1 a1R Nf3 g1R Qd3 g2 Nd2 g3 Kf3 Nh7 Rg4 Qb6 Rf8 Bd8 b8R R1a2 Rb7 Rac2 Rbf7 Qb8 Be2 f1N Bd1 Rh1 Bg1 Ra5 Rgf4 Rh4 R7f6+ Kd7 d6 Re5 d5 Bc7 Rg4 Nd4+ Kf4 Ra2 Bb3 Rac2 Nf3 Nd2 R8f7+ Re7 e5 Nb1 Nd2 Bd8 Be3 g1Q Bf2 g2 Kg3 Qd1 Bg1 Nc6 Ra4 Nd4 Bf2 g1B e6+ Kc8 Be3 Kb7 Bf2 Kb6 Be3 Rb7 e7 Kc5 e8B Re7 Bb5 Re5 d7 Bc7 d6 Bd8 Ra5 Kb4 Ra7 Bc7 d8R Bf2+ Kg2 Bg3 Bg1 Bf4 Ra5 Be3 Kg3 Bg5 Rg6 Bf6 d7 Bg5 Rdf8 Bgd8 Rd6 Rc4 Qf5 Kc3 Ra4 Rc6 Qe4 Rc4 Qd5 Kd3 Rff6 Ke2 R8f7 Ke1 Qf3 Rcc5 Qd3 R5c3 Rxd1+
5Q2/2rP1rRq/q1R1B2R/N2B3q/BrR5/p1n1K3/RP4q1/1nk2b1r b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 f3 a6 f4 exf4 Nf3 Bc5 Ng1 Ba7 b6 Qd6 bxa7 Qd8 g4 g5 d3 f3 Bf4 f2+ Kd2 h6 Nc3 gxf4 Ne4 h5 g5 Kd7 Nf6+ Ke7 Ng4 hxg4 Bh3 Kf8 Bf1 Ke8 e4 Ke7 h4 Kd6 d4 f5 h5 c5 g6 g3 h6 a5 h7 f3 g7 c4 Qb3 a4 Qa2 a3 Rh2 f4 Rc1 c3+ Kd3 c2 Rh1 g2 Rh6+ Nf6 g8R Qa5 Qa1 Bh3 Rf8 Na6 Rf7 Rab8 a8B Nc7 Ne2 g1Q Rg7 Qh2 Rh4 Rhc8 h8R Nb5 R8h6 Rc7 Rd1 Rb6 Nc1 Nc3 Nb3 c1R Bc6 Qc5 Na5 Rb4 Bd7 Nb1 Be6 Qh1 Bg2 f1R Rhg4 f2 Rgh4 f3 Ke3 Rf7 e5+ Ke7 Rf4 Ne4 Rff6 Nec3 d6+ Kf8 d7 Ke7 d8R Re1+ Kf4 f1Q Rc8 f2 Bgd5 Qa6 Rc6 Rg1 Ke3 f1Q Rf4 Qfg2 Qa2 Qhh2 Qc4 Rh1 Qf1 Qg6 Qf3 Bf1 Re4 Qhg2 Qf4 Rc2 Rc1 Nd2 Ra1 Qh7 Ra2 Ndb1 Bb3 Ne2 Rb6 Qcb5 d5 Rc7 Rc6 Nec3 Rg8 Rf8 d6+ Kd8 d7 Ke7 Rec4 Qbd5 Bc2 Qd1 Bd5 Qh5 e6 Rf5 Qf2 Rf6 Ba4 Rf8 R6c5 Kd6 e7+ Ke5 e8B Rf4 Rg7 Kf5 Rcc6 Rf3+ Kd4 Kf4 Qc2 Rf2 Bef7 Rf3 Bfe6 Rf2 Kc5+ Ke3 Qf5 Kd2 Kd4 Kc1 Qf8 Rf7 Ke3
N1q1b3/2PBb1N1/1N3rnR/2p1nkpb/1B6/1PrqB2N/2N2n2/2Q1K3 b - - 0 1 legal: proof: d4 h5 g4 a5 gxh5 f5 e4 b5 exf5 a4 d5 a3 c4 axb2 c5 b4 d6 b3 axb3 Ra7 Ra5 cxd6 c6 Ra8 Rc5 dxc5 h4 Kf7 f4 Kf6 c7 e5 h6 d5 h7 g5 h5 e4 h6 e3 Bb5 d4 Na3 b1Q Nc2 d3 Nh3 e2 Bd7 Qe7 Be3 Qf7 Qc1 Ne7 Rh2 Rg8 h8N Ra1 h7 Qe6 Nf7 Ng6 Ne5 Be7 Nc4 Nc6 Nb6 Rf8 Na8 Nce5 Rh1 Bb7 Rh2 Bc6 h8B+ Kf7 f6 d2+ Kf2 d1B f5 Ra4 Ke1 Rc4 Rh1 Rc3 Rh2 Kg8 f7+ Kh7 f6 Kh6 Rh1 Kh5 Rh2 Kg4 Rh1 Kf5 Bg7 Rb8 f8N Rb6 f7 Ra6 Nf4 Bb5 Rh6 Rb6 Nh3 Rd6 Be8 Qc8 Nd7 Rf6 f8N Ba4 Ndb6 Bb5 Nb4 Qd3 Ne6 Bd7 Nc2 Bb5 Kf2 e1N Bd7 Bh5 Bh8 N1f3 Bg7 Nh2 Ke1 Nhg4 Bh8 Nf2 Bg7 Rf8 Bh8 Nf7 Bhd4 Nfe5 Bd2 Rf6 B4e3 Rc4 Ba5 Rc3 Bb4 Qd8 Bc8 Be8 Bd7 Qc8 Ng7+
1NR4K/2bn3P/6rB/rN6/p1R1N2b/rNN1bRp1/P2qQbk1/3b4 b - - 0 1 legal: proof: e4 d5 g4 c5 c4 f5 cxd5 fxe4 b4 h5 Ba6 hxg4 Bxb7 c4 b5 Na6 Bxa6 Bxa6 b6 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 a5 h4 g3 b7 g2 b8N a4 f5 e6 h5 g4 f6 e3 f7 c3 h6 e2 h7 e1R Nf3 c2 Rh3 Rh1 Nc3 Nf6 Qe2 Nd7 Ng5 Ra5 Rf3 g1B+ Ke4 e5 Kf5 e4 Kg6 Ke5 d6 e3 Nge4 Bg7 f8N Rh3 Ne6 Rg8 Nd4 Bf2 Ndb5 Bf6+ Kf7 Rg6 Rb1 B6h4 Rb4 Bhg3 Rc4 Bf4 d4+ Kf5 Qd2 e2 d5 e1B Qe2 Ke5 Bd2 c1B Be3 B4g3 Bg5 Bce3 Bh6 Re6 Kg7 Bh2 Rf8 Rg6+ Kh8 Qg5 Rf3 Bh4 Na6 B1f2 Nac5 Bb7 Rf6 Rf3 Nb3 Bhf4 Rf8 g3 Rfc8 Kf5 Rf8+ Kg4 Rfc8 Nf8 d7 Kh3 d8N Kg2 d6 Nd7 Nc6 Qd5 Nb8 Qd2 Rf8 Bd5 Rf5 Be6 Rf8 Bg4 Rfc8 Nb6 d7 Bc7 d8R Nd7 Rg8 Rf5 Qe1 Bd1 Qe2 Rd5 Rgf8 Rd3 Nd5 Rc3 Rf3 Rd3 Nc1 Rb3 Ndc3 Ra3 Nb3
B5n1/2p1bN1b/5nnB/1b1N1kP1/B7/P3q1r1/pK3b1N/1NN1n1QR b - - 0 1 legal: proof: b4 a5 e4 b5 h4 g5 c4 gxh4 c5 f5 exf5 Ba6 c6 axb4 a3 b3 Ra2 bxa2 cxd7+ Kf7 Qc2 Nc6 Qd1 Rc8 dxc8B Ke8 f4 Kf7 g4 Kf6 d4 h5 Kd2 e5 Kc2 h3 d5 h4 d6 h2 d7 h3 Bc4 b4 Bb5 b3+ Kc3 e4 Qf1 e3 Ba4 b2 Ne2 Nce7 Bb7 Ng6 Ba8 Be7 Qg1 Qe8 d8N Bb5 Nf7 Rh5 Bd2 Rg5 Nc1 e2 Kc2 e1B Be3 Kg7 f6+ Kh7 f5 Bf2 Nh8 Kh6 f7 Kg7 f8N Kf6 Ne6 Ke5 Nc3 b1B+ Kb2 B1d3 f6 Bf5 f7 Kf6 Qf1 Bb1 Rg1 h1N f8N h2 Nf4 Ng3 Nf7 h1N N8e6 Nh5 Nd4 Be4 Nb1 Bed3 Nh8 Ke5 Nd5 Nhf6 Qd1 Qc8 Bb7 Nf4 Bd2 Be1 Bc3 Qe6 Rf1 Nf2 Rh1 Bh7 Ba8 Ng6 Nf7+ Ke4 Bd2 Nd3+ Kb3 Qe5 Nf3 Bf2 Qg1 Ne1 Nh2 Qd4 Bf4 Qe3+ Kb2 Rh5 Nd3 Rh3 Bh6 Rg3 g5 Kf5 Nc1
3n3B/1n3N1r/2rpQPb1/1R1r2BB/R2pkB2/Bnq1pR2/K3n1P1/8 b - - 0 1 legal: proof: e4 a5 b4 b5 c4 c5 d4 cxd4 h4 f5 exf5 g5 c5 gxh4 a3 Bg7 Nd2 Be5 a4 Bc7 axb5 a4 Nb3 Bb6 cxb6 axb3 Kd2 Kf7 f4 Kf6 b7 h5 b6 e5 b5 h3 Bc4 h4 Be6 e4 Bd5 h2 Bf7 b2 Kc2 b1N Kb2 h3 Qe2 Rh6 Bh5 Nc6 b8B Qc7 b7 Ra5 b6 Nge7 Ra4 Rd5 Nf3 Nd8 Ka2 Nd2 Rf1 h1R Ne5 h2 Rf3 Nec6 Nf7 Na5 Qe3 Qc3 Be5+ Ke7 b8B Rc6 b7 Ndb3 f6+ Ke6 Bbd6 Kf5 b8R Nab7 Bda3 d6 Bd2 N7a5 Rb5 Nab7 Qe2 Rb1 Qe3 h1N Qe1 Ng3 Qe3 Ne2 Bdc1 Ke6 f5+ Kd7 Bd2 Rh1 Qh6 Rh4 Bg5 e3 Bef4 Kc7 Qg6 Rh2 Qg8 Bd7 Qe8 Rh3 Qe6 Be8 Nh8 Bg6 f7 Rh1 f8B Rh4 f6 Rh2 Qg8 Kd7 Nf7 Ke6 Bg7 Kf5 Bh8 Ke4 Bg4 Rh7 Bh5 Ne6 Qc8 Ned8 Qe6+
kbR1Bq1N/qR2qnPK/b1Bqp3/1B1Br3/3p4/P4q2/1B4Qp/4R3 b - - 0 1 legal: proof: f4 c5 e4 b5 d4 cxd4 b4 a5 f5 axb4 e5 d6 e6 Ra3 exf7+ Kd7 f6 e6 Bf4 Rb3 Bc1 Rc3 h4 g5 g4 Qb6 h5 Rc7 Nc3 Nc6 Nce2 Nce7 Nf4 gxf4 g5 Ng6 hxg6 Ra7 Qe2 Qd8 Qg4 Kc6 Qd1 Re7 fxe7 Kd7 Ke2 Kc7 Kd3 Kb7 Ke4 h5 e8B b3 c4 d5+ Ke5 b2 a3 b1Q g7 b4 c5 f3 c6+ Ka8 c7 f2 g6 b3 Bd3 f1Q Ne2 h4 Nf4 h3 Qd2 h2 Bdb5 d3 Bb2 Qe7 Qg2 Ba6 c8B d2 Bcd7 Qbd3 Rb1 Nh6 g8B d1Q g7 Qd1f3 Ng6 Q1f2 Rhg1 Qa7 Bh7 d4 Rge1 Qf1 Rbc1 Qf2 Rc7 Qf1 Rb7 Q1f2 Ba1 b2 Bdc6 b1Q Bb2 Qbc2 Bd5 Qcc5 Bec6 Nf5 Bg8 Rh5 Nh8 Qf1 Bh7 Nh6+ Bf5 Qed6+ Kf6 Qe7+ Kg6 Qcd6 Bb1 Re5 Kh7 Qed7 Qg5 Qf5+ Qg6 Qdb8 B5d3 Bd6 f8R Qe7 Bdb5 Q1f3 Rc8 Qff8 Qg5 Bc7 Bg6 Bd6 Bge8 Nf7 Rcc7 Qbd8 Rc8+ Bb8 Qd2 Qdd6 Qg2
bQ1q3b/1Pbr2R1/5p2/k6N/2NbB1N1/pK5N/B2p2Pb/2bNBn2 b - - 0 1 legal: proof: f4 b5 a4 bxa4 b4 c6 c4 f6 e4 Qc7 f5 Kd8 h4 Qf4 e5 Qg5 hxg5 fxe5 f6 e4 f7 Na6 Ra3 Nb8 Rf3 Nf6 Rf2 Ng8 Rf6 gxf6 d4 a5 b5 Ra6 c5 Rb6 cxb6 c5 Rh2 c4 Rh5 Na6 Rh1 Nc5 dxc5 Bg7 Rh3 Bh6 Rh1 Bf8 Kd2 d5 Kc2 e5 b7 Kc7 b8N h5 g6 h4 g7 h3 c6 Kb6 c7 c3 Bh6 e3 Qe1 d4 Bd3 e4 Qf2 e2 Qe3 e1B Qd2 h2 Bc4 d3+ Kd1 a3 Bg5 c2+ Kc1 e3 Bd5 a2 Kb2 a1B+ Ka2 c1B Nc3 a4 Nh3 a3 Bh4 e2 Nd1 Rh7 Kb3 Bg3 Qb2 e1B Nd7+ Ka5 b6 d2 Ne5 Ne7 g8B Bb7 c8N Bg7 f8N Bh8 Ng4 Ba8 Ne6 Bc7 Ng7 Beg3 Nd6 Nf5 Nh5 Ne3 Be4 Nf1 b7 Be5 Be1 Rd7 Bgd5 Bf4 Qe5 Bd4 Qe8 Bg3 Qb8 Bge5 Rg1 h1Q Nc4+ Kb5 Bf7 Qh2 Rh1 Qg1 Bfd5 Bh2 Bb1 Qf2 Ba2 Qe2 Bf3 Qe8 Bd5 Qd8 Be4 Ne3 Rf1 Ka6 Rf3 Nf1 Rg3 Kb5 Nge3 Ka6 Rg7 Kb5 Ng4 Ka6 Nce5 Ka5 Nc4+
k1B2qrB/N4Rr1/1q1qb2N/4Pq2/N4NqB/n1K1nr2/q1N2QP1/3b4 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 h4 g5 Nc3 Be7 Nb1 b5 d4 cxd4 axb5 g4 Ra3 Bf6 Rf3 Bg5 hxg5 gxf3 Kd2 h5 e4 a5 c4 d5 b6 Kd7 g6 Kc6 c5 Kb7 b5 f5 g7 h4 e5 h3 Qe1 d3 Qe4 h2 Ne2 a4 Na3 f2 Bb2 f3 Qd4 f4 Qe4 Nd7 Ng3 Ngf6 g8N Ra7 c6+ Ka8 c7 Ng4 Qh7 d4 Qh3 Ne3 Nc4 a3 Bc1 a2 Nh5 a1Q Qf5 Qa2+ Nb2 Qg5 Qf8 Qg4 Nh6 Rg8 Be2 Rb7 Rf1 h1Q Qf6 Qg1 Qh4 Nc2 Na4 Nf6 Bd1 Bd7 c8N Nd5 Na7 Be6 Be2 Rbg7 b7+ Kb8 Ba3 Nde3 Be7 Na3+ Nb2 Kc7 b8N Kb7 b6 Ka8 Qg3 Nd5 Na6 Ne3 Rd1 f1R Bh4 f2 Nb4 f3 Nf4 Re1 Rc1 f1Q Rc7 f2 Nc2 Rb1 Na4 Rb3 Rf7 Qfb1 Rf6 f1Q Rf7 Qff3 Qf2 Qgf1 Nd5 Qff5 Nf4 Rc3 Qe1 Qff3 Qf2 Qb4 Bd1 Qc6 Bf3 Qf8 Bd5 Rb3 Bc4 Rc3 Ba6 Qcd6 Bc8 Qgg6 Ke1 d2+ Ke2 d1B+ Kd2 d3 Bf6 Rb3 Bh4 Rb4 Kc3 d2 b7+ Kb8 Nd5 Rf4 Bf6 Rf3 Nf4 Qb6 Bh4 Qgg4 Bf6 Rh7 Bh8 Rhg7 Bd7 Kc7 b8B+ Kb7 Bc8+ Ka8 Bc7 Be2 Nd4 d1Q Nc2 Qdd6 Bd8 Bd1 Bh4
b7/1b1br1Nq/2nQnPn1/B3N1P1/2N1k3/4rR2/Rr1Rb2N/2Nrn2K b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 d4 cxd4 f5 g6 g4 Nc6 h4 Bh6 g5 Ne5 f6 Ng4 Bh3 Ne5 Bf5 gxf5 g6 Bg5 hxg5 Nc6 Ra2 Nb8 Ra3 Nh6 Ra1 Ng8 Kf2 h5 Kg2 a5 c4 d5 b4 Kd7 g7 Ke6 c5 Ke5 c6 e3 b6 a4 b5 d3 b7 d2 c7 a3 b6 h4 Rh2 f4 Qf1 d1B Qa6 e2 Ra2 e1R Be3 f3+ Kh1 d4 Qd3 h3 Qb5+ Ke4 Bf2 e5 Rg2 d3 Qd7 d2 Rc2 a2 Rc5 a1N Qd6 h2 Qd7 Be2 Ra5 d1R Bg3 f2 Ra2 f1B Na3 Nb3 Nc4 Ne7 g8N Ng6 Qd6 Qe7 Nh6 Qh7 Ng4 Bd7 c8N Nc6 b8N Ra3 b7 Nc5 Ne7 Ne6 Nf5 Re3 Ng7 Re8 Rf2 Re7 Rf3 Rb3 Bf2 Rb2 Bb6 Bh3 Ba5 Bhf1 Nb6 Ba6 Nc4 Re3 Ra4 Be2 Ra2 Bc8 Nd7 Bb5 b8R Bb7 Kg2 Ba8 Rd8 h1B+ Kf2 Ba6 Nh2 B6b7 Nh3 Bg2 Nf4 Bh3 Nd3 Nc7 Ndb6 Bd7 Kg2 Ne6 Nc1 Bdc8 Na3 Bb5+ Nc2 Rc3 Rg3 Kf4 Qa3 e4 Rd2 e3 Rf3+ Ke4 Qd6 Bd7 Ne1 Bc4 Kh1 e2 Rf5 Bd3 Nc4 Rcb3 Rf1 Ra3 Nf3 e1N Nfe5 Be2 Rf5 Re3 Rf3
1Br4r/1R1N4/1b1qNk2/1P1bNq1n/4pBB1/N4PNr/1r1Q3r/n2Kn3 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 g4 Kf7 d4 e5 b7 c5 d6 h5 g5 e3 d5 c4 f3 c3 g6+ Kf6 d7 e4 g7 e2 d6 c2 Bg2 b3 Nc3 b2 Nb1 h3 Kd2 e1N Ke2 h2 Bh6 c1Q Nc3 b1R Qd3 h4 Qd5 h3 Bf4 Na6 b8B Nc5 Qd2 Rb2 Nb1 Bb7 Na3 Bd5 Bf1 Qb6 d8N Nb3 d7 Bc5 Ne6 Qd6 d8N Bb6 Nf7 Na1 Ne5 Qc8 Kd1 Qcd7 Ne2 Qf7 Rg1 h1R Rg4 h2 Bh3 Qh5 Ng3 Qf5 Bc7 Rc8 Bb8 Ke7 Rg6 Nf6 Bg4 Rh3 Rh6 Nh5 Rh8 Kf6 Re8 Rg1 Re7 h1R Rb7 Rh8 Nd3 R1h2 g8N+ Kg6 Nf6 Rgh1 Nd7 Rc8 N7e5+ Kf6 Ndc5 Ng7 Qc3 Rhh8 Qd2 Nh5 Rg7 Rh3 Rb7 R1h2 Ncd7+
3NnBR1/Q3K1pq/3Nbn2/2PP1N2/Nr2rrr1/B2r4/1b1kBN2/3b3q b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 a4 b5 axb5 Rh5 Nc3 Rh6 Nb1 Rh8 c4 c5 b4 cxb4 c5 d5 Ra3 Kd7 Rc3 Ke8 Rc4 dxc4 Ke2 Kd7 Ke3 a5 Kd4 e5+ Kd5 b3 h4 g3 f4 b2 d4 c3 b6 c2 b7 g2 f6 a4 f5 e4 f7 e3 f6 a3 h5 e2 h6 e1R h7 a2 Rh5 a1Q Qe2 Ra3 Ke5 Kc6 Be3 c1R Qd3 Be6 Nh3 g1R Nf2 Rc4 d5+ Kb5 Nc3+ Kb4 Be2 b1B Bc1 Rf4 Qa6 Rgg4 Qa7 Be7 f8N Na6 b8N Bc2 f7 Bd1 Ng6 Nc7 f8B Nf6 Nh4 Nce8 Nf5 Qb1 Na4 Rd3 Nc6+ Kb3 Qa8 Kc2 Ba3 Kd2 Qa7 Qc2 Rh6 Qb6 Rh2 Qbb1 Nd8 Rg8 h8N Rb4 Ng6 Rh8 Rh3 Rhh4 Nd6 Rgf4 Rh1 Rhg4 Rh8 Bf5 Rh1 Rc3 Qa8 Nh7 N6b7 Be6 Nh4 Qd3 Rh3 Qf3 Qa7 Qg6 Nf5 Qh1 Rh6 Rd3 Rh2 Ng5 Rh8 Qgh7 Rg8 Ne4 Bf1 Bd7 Nbd6 Bc8 Qd7 Bf6+ Ke6 Bb2 Kf7 N4f6 Qa7 Ree4 Be2 Be6+ Ke7
4n3/B1PKb1q1/4pb1N/R2B4/PQbB1qN1/2nN2q1/r2N2N1/b1k3rb b - - 0 1 legal: proof: b4 c5 g4 a5 d4 cxd4 e4 f5 exf5 h5 gxh5 axb4 a4 Rh6 Ra2 Rh8 Ra3 bxa3 Ke2 Kf7 Kf3 Kf6 Ke4 g5 Kd5 b5 f4 a2 h4 a1B c4 e6+ Ke4 d5+ Kd3 g4 c5 b4 c6 g3 c7 b3 h6 b2 h7 g2 h5 Qd7 h6 Qg7 Rh2 Be7 Be3 Nc6 Qg4 Na7 Nd2 Nb5 Rh5 Nc3 Nh3 g1B Nf2 Bb7 Bg2 Rb8 Rg5 Bc6 Qh4 Rb3 Bf3 Ra3 Bh1 Ra2 Ng4+ Kf7 Bf2 Nf6 Be4 Ra8 h8B Rg8 h7 Ne8 f6 Bb7 Rf5 Kg6 f7 Bh2 Bg1 Bf6 Qe1 Bg3 Bf3 Bgh4 Re5 Be7 f5+ Kg5 f8N Kf4 Nd7 Bhf6 Nc5 Bc6 Qd1 Ba8 Qb3 Bc6 Qb4 Bb5+ Kc2 b1B+ Kb3 Be4 Bf2 d3 Bh1 Bh4 f6 d4 f7 Bhf6 f8N Bb7 Bd5 B7c6 Nde4 d2 Nd3+ Kf3 Bg1 Ke2 Ng6 Kd1 Nh4 Ba8 Ng2 Bac6 Ndf4 d3 Ba7 Kc1 Rf5 Rc2 Ka3 d1Q Nd2 Qe1 Rh5 Ra2+ Kb3 Qg6 Bg7 Qh4 h8N Qg3 Nf7 Ba8 Bh8 Qg7 Nfh6 Bb7 Bc4 B5a6 Ra5 Bf3 Bd5 Be4 Qd6 Bc4+ Kb4 Bf3 Kc5 Be4 Ne1 Bh1 Nfg2 Qf4 Kc6 Qg3 Ndf3 d2 Qb4 d1Q Nd2 Qdf3 Kd7 Qff4 Nd3+ Kc2 Nf7 Qgh6 Nh4 Qg1 Bf3 Bg5 Bhd4 Bgf6 Nh2 Rg3 Bc6 Qg7 Ng4 Qe1 Nfh6 Rg1 Ng2 Qeg3 Bd5 Kd1 Ndf2+ Kc1 Nd3+
3q2b1/2BBP3/3B1k1K/Qbpr4/B1qq4/1RNr1n1P/b1R1n1R1/r1r4B b - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 h5 b4 axb4 g4 hxg4 d6 e5 e4 Bd7 f4 Ra7 d5 Bb5 Nc3 Ra8 Nce2 Nc6 Nd4 exd4 e5 Nb8 Be2 Bd7 Bf1 Be7 e6 Bf6 Qa4 Be5 Qd1 Bc8 fxe5 Ra5 Kd2 Ra3 Ke1 Ra8 Ke2 g5 a4 f5 e7 Kf7 a5 b5 d7 c5 d6 d3+ Ke3 f4+ Ke4 f3 Kf5 b3 h3 b2 a6 b1B a7 d2+ Qc2 d1R Rh2 g3 Ra4 f2 Rg4 g2 Be3 b4 Bd2 b3 Rf4 b2 Bb5 f1Q Bc6 g4 Kg5+ Nf6 Rf2 g3 Bc3 Ba6 Bb5 Qc4 Qd2 Nc6 Ba4 Nd4 Ne2 g1R Rfg2 Bh7 Kh6 Nh5 e6+ Kf6 e8B b1B e7 Nf4 Bb2 Bb5 Qa5 Rge1 Nc3 Ba2 Bc1 Nfe2 Bf4 Rd3 Be5+ Ke6 Bf4 Ra1 Be5 Rb8 a8B Nf3 Bf4 Kf6 Bc6 Qc8 d8B Rb6 Bc7 Qd8 d7 Ra6 Bf7 Rc1 Bfd5 Rf8 Be4 Bg8 Bfd6 Rf7 Bf5 Rg7 Be6 Rg5 Ba8 Rgd5 Bb7 Qe8 d8R Qd7 Rb8 Qd8 Bd7 Ra8 Rf2 g2 Bbc6 g1Q Rfg2 Qgd4 Rb7 Ba6 Rb3 Bb5 Bb7 Nf4 Rc2 Ne2 Rg2 Nh4 Rg5 Rf5 Bh1 Bb1 Qa7 Nf3 Rg2 Rd5 Qb6 Bc6 Bb5 Ra1 Qa5 Ba2 Ba4 Bb5 Bf4 Qe8 Bh2 Qd8 Bhd6
RRn4B/P1BQ2K1/3q3B/N1b1p2q/5R1n/2qr4/b2P1q2/nr1Bk1Br b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Ra5 Ng4 hxg4 Bb2 Ra6 Bc1 Ra8 Kf2 Kf7 a4 b5 h4 e5 f6 Kg6 d6 Kh5 a5 c5 d7 c4 g6 c3 g7 f3 Ke3 b3 Ke4 g3 Kf5 c2 a6 b2 a7 b1R f7 g2 Qe1 f2 Ra5 b4 Bb2 c1Q Ba6 f1Q+ Ke6 Kg4 h5 b3 h6 Ne7 h7 Qc3 Qe3 Qf2 Qd3 Nbc6 Ne2 g1N Nd4 Nb4 Ra4 Nf3 Kf6 Kg3 Nc6 Nc2 Na5 Na1 Rf4 Kg2 Qd4 Nh4 Be2 Qdc7 d8B Be6 Rd1 Qd6 Bc7 Rd8 Rh1 Nc8 Bd1 Rd7 Rh3 Kf1 g8R Be7+ Kg7 Ke1 f8B Bc4 Ba3 b2 Bc5 Ba2 Qd3 Qb6 Qb5 Rd3 Qd7 Qe6 Be3 Bc5 Rg3 Qf5 Rg6 Qh5 Rb6 Rc1 Rb8 b1Q Ra8 Qb6 Rb8 Rb1 Ra8 Qff3 Bg1 Qe6 Be7 Qa6 Bg5 Qd6 Bh6 Qf2 Re8 Rf8 h8B Rf5 Rc4 Rff3 Rf8 Rh3 Rb4 Rh2 Rbb8 Rh1 Rf4
Q1r3B1/1q2b2R/2bNqRPN/1N1nbb2/3N1kb1/n2p2rb/3K2P1/R2N4 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 h5 d4 c5 d5 b5 axb5 g5 hxg5 h4 d6 h3 Be3 h2 Bd4 cxd4 Nf3 Nf6 Rg1 h1Q Kd2 Qh2 Ke1 Ng8 Rh1 Qg1 Ne5 Bxd6 Nf3 Bf8 b4 Ke7 e4 Ke6 c4 f5 g6 a5 c5 d5 c6 d3 b6 d2+ Ke2 a4 b5 a3 b7 d4 e5 a2 b6 Nd7 b8R Rh3 c7 Qe8 b7 Nb6 Qb3+ Nc4 Nh2 d1B+ Ke1 f3 Qb4 f4 Qe7+ Kf5 e6 Na3 Qh4 f2+ Kd2 f3 e7 Rg3 Kc1 Nf6 Bc4 f1B Kd2 f2 Nc3 Nd5 Ng4 Kf4 Nh6+ Bdg4 Nd1 Bd3 Qh2 Qb5 e8N f1B Nd6 Bdf5 Bb3 Qe8 Nb5 Qe6 Qh4 d3 Qd8 Bfe2 Rh4 Bd7 c8N Qgb6 Ncd6 Bc6 Rc8 Qc7 b8N Qb7 Qa5 Be7 Rf8 Bf3 Rf6 Be2 Rh5 Bh3 Qd8 Beg4 Qh8 Bd7 Nc6 Rc8 Ncd4 Bc6 Qg8 Rc7 Qa8 Rc8 Rb1 a1B Rh4 Bb2 Ra1 Ne3 Nc2 Be5 Ncd4 Qed7 Bg8 Nd5 Nhf7 Qe6 Rh7 Qb8 Nh6 Qc7 Qa5 Qb7 Qa8
2K5/BBP5/NP3qq1/1B1Nkn1n/qR1n2B1/5bBn/1rp5/N1nnQ1b1 b - - 0 1 illegal: No possible last move
4Bb2/qPK5/1NQB1NrN/B7/n1p1N3/2q1N1rr/1Ppbr1k1/2nr1R2 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 Nh3 h5 Ra3 f5 Rg3 f3 Ng1 f4 Rg2 Bf5 gxf5 Be7 Rg6 Bf8 Rg4 hxg4 Kf2 Kf7 e4 Kf6 d4 Kg5 f6 Kh4 h3 c5 d5 g5 d6 a5 d7 g3+ Ke1 g4 Kd2 c3+ Kd3 f2 Kc4 a4 Kd5 c2 f7 g2 e5 Kg3 h4 c4 h5 f3 b6 a3 e6 a2 h6 a1Q h7 Qa7 b7 Nc6 e7 Nb4+ Kd6 Qda5 d8B Nd3 Nh3 g1B Be2 f1R Nc3 f2 Nd5 Qc3 Kc7 Nf6 e8N Ne4 Bf4+ Kg2 Ng5 g3 Bh5 Re1 Nef6 f1R Bd6 Nec5 Nge4 Be3 Qe2+ Rf2 Rf1 Na4 Qd2 Rg8 h8N Rd1 Qc1 Bd2 Ne3+ Kh3 Qa1 g2 Qa3 g1R Qc5 Rfg2 Qc6 Re2 Bg6 Rg3 Bh5 Bh6 f8N R8g6 Nf7 Nc1 N8d7 Bf8 Nb6 Kh2 Nh6 Kh3 B8e7 Rd8 Bb4 Rd3 Bed6 Kh2 Nef5 Kg2 Ba5 R6g4 Be8 Rg6 Nfg8 Rh3 Ngf6 Rdg3 Ne3+
1qb3rn/2p1Bn2/Rrp1P2b/R1n3Q1/4k1b1/RB1N3B/BP2b3/K1B3q1 b - - 0 1 legal: proof: f4 g5 fxg5 a5 c4 e5 a4 b5 axb5 a4 c5 a3 c6 dxc6 Nc3 a2 h3 Bxh3 Nd5 Bc8 Rb1 a1Q Nf4 Qa2 Ra1 Qb1 Ra7 exf4 Ra3 Ne7 Ra1 Ng8 g4 Kd7 d4 Kd6 Kd2 Kd5 g6 f5 g5 h5 b6 f3 b7 f2 g7 h4 g6 h3 Ra3 h2 Nf3 f4 Bh3 f1B Ne1 f3 Nd3 Bg2 Qg1 Ne7 g8B+ Ke4 g7 f2 d5 f1B d6 Ng6 d7 Bf3 Bb3 Bg4 g8B Na6 b8R Nc5 Rb5 Rb8 Rba5 Rb6 Kc3 Qe8 d8B Bh6 Be7 Qf8 Bge6 Rg8 e3 Qa1 Kc2 Bfe2 Ba2 Nh8 Beb3 Qd8 Qg3 Qe8 Qh4 Qd8 Qg5 Qe8 Rf1 h1N Rf5 Qd8 Ra6 Ng3 Rd5 Nf5 Re5+ Kf3 e4 Nd6 Rd5 Qf8 e5 Ndf7 e6 Ke4 Rf5 Nd7 Rfa5 Nc5 Be3 Qg1 Bc1 Bd7 Kb1 Qb8 Ka1 Bc8 Ba4 Nd8 Bd1 Ndf7 Bdb3
2n1rN1K/P1pP4/BN1n2N1/1n3b1p/rB1NQb2/3Bn3/k1r5/1Nq1q1R1 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 f5 exf5 axb4 c4 gxh4 Ra3 bxa3 cxd5 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Kf7 Ke3 b5 Kd4 h5 Ke5 e6 f4 h3 g4 h2 d4 b4 d6 a2 d5 a1Q+ Qd4 b3 f6 b2 f5 Bd7 g5 Bh6 a5 Qe7 Nh3 Na6 Nf4 Nc5 a6 Nb7 Rg1 h1R Qe4 Rh2 Ng6 Rc2 Bd3 Qe8 Be3 Ne7 Bd2 Nc8 Bb4 Ra7 Nc3 Qc1 Nb1 Bb5 d7 Nbd6 Nf8 Qe7 Ng6 Re8 d8N+ Kg8 Qe1 Bd7 Nc6 Kf7 Nd4 Ra8 Nd2 b1N Qe4 Nc3 Nb1 Ncb5 a7 Rb8 Rd1 Rb6 Rf1 Ra6 Rg1 Kg8 f7+ Kg7 f8N Kf7 f6 Ra4 Qh4 Nf5 Ke4 e5 d6 Qe6 Qg4 Qe7 Kd5 e4 Qe2 Be6+ Ke5 e3 Qe1 e2 Nd7 Raa2 Nb6 Ra4 d7 Nfd6 Qh4 e1N Qg4 Ng2 Qe4 Kg8 f7+ Kg7 f8N Ne3 Nh8 Kg8 g6 Bf5+ Nde6 Qh4 g7 Qhe1 Kf6 Bf4 Nhg6 Bh2 Kg5 Kf7 Kh6 Bg3 Kh7 Bf4 Kh8 Kf6 Qg2 Kf7 g8B+ Kf6 Ne7 Ke5 Bh7 Na3 Ba6 Nab5 Qg6 Ke4 Nd4 Kd3 Nbd5 Kc4 Qg2 Qh4 Qe4 Qg3 Ng6 Qge1 Ne2+ Kb3 Nb6 Ka2 Nd4 Kb2 Bg8 Ka1 Bc4 Kb2 Bf1 Ka2 Bd3
4r2R/3kpnpB/1N1bb1Kb/RP2qR2/1r2NNN1/b2Pb3/4q1Q1/2N3b1 b - - 0 1 illegal: No proof kernel forced: wxDB
1n4K1/P1NbpR2/1Nn3N1/1q3Q1q/2n1Rrpb/1R4n1/2P1Bk2/2b1RR1b b - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 h6 Bg5 hxg5 f4 c5 e4 cxd4 b4 axb4 e5 Kf7 f6 Ke6 f5+ Kd5 f7 b5 Ke2 Ra6 Ke1 Rf6 exf6 Kc6 Ke2 Kd5 Kf3 d3 Kg4 Ke4 a4 Ke3 h4 d5 a5 b3 h5 b4 a6 b2 h6 d2 Kh5 d4 Kg6 g4 a7 d3 h7 g3 Bh3 g2 Ra6 b3 Qc1 Nc6 Nf3 g1B Ra2 Qe8 Bf1 Bd7 Nd4 Kf2 Nb5 d1N Ra3 d2 Be2 Nc3 Nc7 d1B Qg5 Ne4 Nc3 b1Q N3d5 b2 Rb3 Ng3 Nb6 Bh2 Re1 Bg1 Bc4 Bf3 Be2 Bh1 Qg4 Qd1 Qe4 b1N Qd5 Nh6 Qb5 Rg8 h8R Nb8 Kh7 g5 Qa5 Rg6 Rg8 Ng4 Rg7 Na3 Kg8 Rh6 Rg6 Bg7+ f8N Ne5 f7 Nac4 f6 Rh4 Qd5 Nec6 Qe6 Rf4 Qf5 Bh6 Rg7 Nd8 Rg6 Bdc6 Rg7 Qed7 Ng6 g4 f8R Q1d5+ f7 Ba4 Rh7 Ndc6 Rc8 Qb5 f8R Qdd5+ Rff7 Bg5 Rd8 Bh4 Rh8 Qdc5 Rd4 Qd5 Re4 Qe5 Qf6 Qh5 Qg5 Kg2 Qc5 Be3 Qf5 Kf2 Rh6 Bc1 Rhh7 Bf6 Rh8 Qg5 Rh3 Qh5 Rb1 Bh4 Rb3 Bg2 Rhh1 Bf3 Rhg1 Bg2 Kg7 Bh1 Kg8 Qe5 Bf1 Nd4 Bg2 Bd7 Bf1 Ndc6 Be2 Qb5 Rgf1+
2kn1q1r/6N1/2Rr3n/R1Ppr3/3Pbp1K/2N2b1R/1Bb1NpN1/2q1N2Q b - - 0 1 legal: proof: b4 c5 h4 b5 f4 e5 g4 exf4 g5 cxb4 a4 g6 axb5 Bg7 Bh3 f3 Bf5 gxf5 g6 f4 Ra3 Bh6 Ra1 Bg5 hxg5 Qa5 Ra3 Qb6 Ra1 Qd8 Kf2 f5 e4 a5 c4 h5 d4 d5 g7 Kd7 g6 b3 e5 b2 c5 h4 b6 h3 b7 a4 Nc3 b1B Nge2 h2 Bb2 Nh6 g8R a3 g7 Nc6 b8N+ Kc7 e6 a2 e7 Be4 Qb1 Qf8 Nd7 Ra6 Ne5 Nd8 Nd3 Rd6 Ne1 Ba6 e8N+ Kc8 Qd1 Bad3 Qc1 Bc2 Qb1 Qf6 Rf8 Qg5 g8N Qe7 Rf6 Qf8 Rf1 h1R Ng7 Rh5 Rh1 Rg5 Rh3 Rh5 Kg1 f2+ Kh2 f3 Kg3 f1B Rg6 f2 Nf6 Bfg2 Ng4 Bgf3 Ne3 Rg5+ Kh4 f4 N3g2 Re5 Nd3 Qg8 Qh1 Qe8 Nde1 Qf8 Rb1 a1Q Rd1 Qa2 Ra1 Qb1 Ra5 Qc1 Rf6 Rd7 Rfa6 Rd6 Rc6+
1R1q2nb/Q4B2/1q1B1BP1/np1p1kBP/5q2/1p6/1Rb2Rrr/rB3K1N b - - 0 1 legal: proof: e4 f5 f4 a5 d4 h5 Qxh5+ g6 b4 axb4 Qh7 c5 Nc3 cxd4 Nce2 g5 exf5 Nh6 f6 Ng8 f5 Ra7 Nf4 gxf4 Ne2 Ra4 Ng1 Ra8 c4 b5 a4 e5 h4 d5 g4 d3 f7+ Kd7 c5 f3 g5 b3 g6 e4 h5 e3 c6+ Ke7 f6+ Ke6 a5 e2 c7 Nd7 a6 Nc5 a7 Nd7 Bg5 Bg7 f8B Nb6 f7 Kf5 Ra2 Nc4 Rb2 Na5 Nh3 d2+ Kf2 e1R Bfe7 d1Q f8B Qc1 Rh2 Qf4 Bef6 Ra1 Bd6 Bd7 Kg1 f2+ Kg2 Qd4 c8B Q4b6 Be2 Ra2 Kf1 Be6 Bd7 Rc8 a8R Rc2 Be8 Ra1+ Kg2 Rh1 Bf7 f1Q+ Kg3 Bd7 Rb8 Qf4+ Kg2 Rd2 Nf2 Bc8 Rh4 Rh2+ Kf1 Be6 Bf3 Bd7 Nh1 Rdg2 Qh6 Rh7 Rh3 Bh8 Qg7 Qe4 Be2 Qf4+ Rf3 Bc8 Rf2 Bd7 Be8 Bc8 Qa7 Rc7 Bd1 Rc1 Bf7 Ra1 Ke2 Kg4 Bc2 Bf5 Bb1 Bc2 Ke1 Kf5 Kf1
1rRNrR2/N1b2R1P/Kn1b3P/1B2nN2/1q1pk2q/1QpqR3/4p3/2R3n1 b - - 0 1 legal: proof: c4 a5 g4 e5 e4 h5 gxh5 b5 d4 exd4 e5 f6 e6 b4 Bf4 Bb7 Be5 fxe5 Ke2 Bc6 Ke1 a4 b3 Bb5 cxb5 axb3 Ke2 Ke7 Kd3 Kd6 Kc4 c5 f4 g5 a4 e4 h4 b2 e7 g4 e8R b3 a5 e3 h6 e2 h5 d3 h7 d2 b6 g3 Kb5 Kd5 h6 c4 b7 c3 a6 g2 a7 Bd6 f5 Nf6 Re3 Re8 Na3 b1Q Nf3 g1B Bg2 Nc6 b8N b2 Ka6 Ne5 Nb5 Qd3 Nc6 Rb8 a8R Bh2 Rc1 b1Q Rf1 Qb4 Bh1 Qe7 Nd8 Qh4 Qa4 d1N Qc2 Nf2 Qb3+ Nc4 Na7 Nh3 Rf2 Ng4 f6 Ng1 f7 Ne5 f8R Bc7 Bg2 Qb4 Bh3 d6 Nd4 Bg3 Bd7 Bf4 Rg3 Ke4 Nf5 d5 Bb5 d4 Rh3 Nb6 Rg3 Rb7 Rc8 Rb8 Rff1 Ng6 Rf2 Bfd6 Rff3 Ne5 Rg7 Be7 Rgf7 Bed6 Re3+
1Rq3B1/1ppq1r2/1RQ1b3/1BB2n1R/1K5p/P3nR1n/1bP2N2/qk3b1R b - - 0 1 legal: proof: f4 a5 e4 g5 d4 f5 b4 axb4 h4 e5 h5 Ra6 g4 Rg6 hxg6 Qf6 Nc3 Qe7 Nce2 Qd8 dxe5 fxe4 f5 Nf6 Nf4 gxf4 g5 Ng8 Kd2 Ke7 a3 d5 f6+ Ke6 g7 h5 f7 d4 g6 Kd5 e6 d3 e7 Kc4 e8R b3 Re6 b2 Re8 b1Q Re7 e3+ Ke1 Kc3 Rh4 e2 Rh3 f3 Rh4 d2+ Kf2 e1N Ke3 f2 Ra2 Be6 Rb2 Rh7 Be2 f1B Rh1 h4 Rb6 Qc8 Bb5 Nf3 Nh3 Nf6 g8B Nc6 g7 Qa1 Nf2 Ng1 Qf3 d1Q Re8 Bd6 f8R Nd4 Qc6+ Bc5 Rd8 Nh3 Rd5 Ng4+ Ke4 Nf5 Be3 Kb2 Rf7 Nd4 Rf3 Kb1 Rh5 Nf5 Bd4 Bb4 Bc5 Qd2 Ba6 Nge3 Bb5 Qa2 Ke5 Qdd7 Ke4 Bd2 Ke5 Bc1 Ke4 Nd6+ Kd4 Ndf5+ Kc3 Qa1+ Kb4 Bb2 Bf7 Qde8 g8R Qed7 Rd8 Rg7 Bg8 Rf7 Ne4 Qe8 Nf2 Qcd7 Ra8 Qec8 Rb8
KB2rr2/1P2k2r/p1Q5/b2qBPq1/1n1pR2B/3B1nr1/1np2N1R/5R1B b - - 0 1 legal: proof: d4 e5 c4 exd4 a4 b5 axb5 g5 h4 gxh4 b6 Be7 b7 Bf8 b4 f5 e4 d6 b5 Kf7 e5 Ke7 b6 Ke8 Nd2 Bd7 Ne4 Bb5 cxb5 fxe4 Ke2 c5 g4 h5 f4 c4 e6 h3 f5 h4 g5 d3+ Ke3 d5 Kd4 d2 g6 h2 e7 h3 Kc5 d4 g7 c3 Qe1 d1N Bb2 e3 Ba3 c2 Be2 a6 Qc3 Nc6 b8B Nb2 b7 Rh7 b6 Ne5 Rf1 Nf3 Kc6 Nf6 g8B Nd5 Bd3 e2 Be5 e1R b8B Nb4+ Kb7 Kd7 e8R Qg5 Bgc4 Be7 Bd5 Bd8 Re6 Bc7 Qc6+ Kd8 Rh6 Ke7 Rh4 Re3 B5e4 Rh8 Bd5 Re8 Re4 Bd8 Ne2 Bc7 Nc3 Bd8 Nd1 Rf8 Rhg1 h1Q Nf2 h2 Rgg4 Qg2 Rh4 h1R Rh2 Re8 Bbc7 Rc8 Bb8 Rf8 Ka7 Bc7 b7 Rce8 Ka8 Ba5 Rhh4 Na4 Rh8 Rh7 Bc1 Nb2 Bd2 Rhf7 Rh2 Rh7 Be1 Qg8 Nh3 Q2g5 Bh4 Qe6 Nf2 Qd7 Bf7 Qd5 Bh5 Ne1 Bg4 Rg3 Bh3 Nf3 Bg2 Qg8 Bh1 Qf7 Rg1 Qd5 Rf1
Rnk1Q1NK/ppn2RP1/6P1/1B4qB/7B/b5b1/qp2p1BR/b3rBr1 b - - 0 1 illegal: No proof kernel
1q3r1n/b3PnB1/Q1p2pB1/3B1N2/3BRp1r/2n1n2p/P3N2K/BN1k3b b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 b4 axb4 Nf3 b3 Ng1 b2 Qb3 bxa1N Qc2 Na6 Qd1 Nb8 Kf2 Kd7 e4 Kd6 g4 Kc5 Kg2 Kb4 d4 b5 g6 h5 g7 h4 d6 c6 d7 h3+ Kh2 Ba6 d5 Ne7 g8N Nb3 g5 Bg7 e5 Na1 e6 Rh4 d6 Nc2 g6 Ne3 Bd3 Bd4 g7 Ng6 Bb2 Ba7 Bd4 Nh8 Bg6 Qe8 d8B Nd7 Qd3 Ne5 Be7 Qb8 Bf8 f6 e7 Nef7 d7 Bc8 d8B Be6 Bc7 Bd5 Ne2 Bf3 Re1 Bh1 Qa3+ Kc4 Ba5 b4 Nh6 b3 Nf5 Kd3 g8B Kc2 Bg7 b2 Bc7 Qc8 Qa6 Qb8 Na3+ Kd2 Bce5 b1N Ba1 Nc3 Nb1+ Kc2 Bd4 Qd6 Qb6 Rf8 Qb7 Qb8 Qa6 Nd8 Bd5 Ndf7 Ng1 Nc4 Re3 Kd1 Re4 Ne3 Ne2
Knr1n3/N4Pk1/rp2P2p/rp6/b7/NBp5/4qRN1/QBBq1nNN b - - 0 1 legal: proof: d4 d5 c4 e5 cxd5 f5 g4 fxg4 b4 a6 b5 axb5 d6 Bf5 Bf4 Be6 Bc1 Bc8 a4 g5 h4 g3 d5 g4 Ra3 Be7 Rd3 Bg5 Rd4 exd4 hxg5 Qd7 Rh2 Qe7 Rh1 Qd8 Kd2 Kf8 Kd3 c5 Ke4 d3 f4 c4 g6 g2 a5 b6 f5 c3 d7 d2 d6 h6 Kd5 g3 e4 Ra6 e5 Qf6 d8N Qg5 g7+ Ke8 d7+ Ke7 Bd3 Qf4 Rh2 Qa4 Na3 Ra7 a6 Qb4 Nc6+ Kf7 d8N+ Ke8 f6 Bf5 Ne6 Kf7 Nf4 Qb2 Bb1 Ra8 a7 Bc2 Nd3 Ba4 Nf2 Qc2 Nh1 Qb2 Qf1 d1N Kd6 Qf2 Kc7 Qe2 Kb7 Ne3 Qd1 Nf1 Qe1 Ne7 g8B+ Kf8 Qd1 Nf5 Bb3 Ng7 f7 Ne8 e6 Kg7 Qe1 Nd7 Qd1 Rc8 a8N Nb8 Na7 Rg8 Nf3 g1R Nc7 g2 Ka8 Rf8 Nd5 Rh8 Nf2 Rh1 Ne3 g1Q Ng2 Rf8 Ne4 Qd4 Qe1 Qdd1 Ng3 Rg8 Rh5 Rh4 Ng1 Rd4 Rc5 Rd2 Re5 Ra2 Nh1 Rc5 Bg6 Qd8 Nb1 Nc7+ Kb7 Nba6 Bb2 Qdd2 Qc1 Ra8 Nc8 Qdd1 Rf5 Ne8 Rf2 Nb8 Bf5 Ra6 Na7 Ra1 Ka8 Rc8 Ba3 Ra2 Qb2 Rc6 Qa1 Rc8 Bc1 Ra3 Bbc2 Bb3 Bh7 R3a5 Na3 Ba4 Bb3 Rc7 Bd3 Rc8 Bb1
4b1n1/2P1rNn1/1Q1bB3/Nn1kP1p1/3rNp2/3R1npK/1Rp1Rr2/R4R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 Nh3 exf4 Ng1 c5 bxc5 b4 c4 d6 c6 Qd7 c7 Qf5 c5 Qg6 c6 Bd7 Bb2 Qg5 Bd4 Qb5 axb5 Bc8 Bc5 dxc5 Kf2 Rh7 Kg2 f3+ Kg3 Ke7 h4 Ke6 e4 f5 d4 g5 b6 a5 b7 b3 h5 b2 d5+ Kd6 h6 f2 Nd2 b1N Nb3 a4 Ne2 a3 Ra2 c4 Nc3 Be7 Bh3 f1R Re2 a2 Qd4 Nd7 b8R Ra4 Na5 a1N Rbb2 Ndf6 Qb6 Rf2 Rf1 Bd7 c8R Be8 Ra8 Na3 Nb3 Nb5 c7+ Ke5 d6 Nc2 d7 Ncd4 d8R Nf3 Rdd2 Bd6 Rd3 Re7 Ra6 Ke6+ e5 Rb4 Ne4 c3 h7 c2 h8N Rd4 Nf7 Kd5 Na1 Bc6 Ra4 Ne8 Nb3 Ng7 Na5 Bd7 Raa1 Be8 Rh1 Rf1 Kg2 g3 Bg4 f4 Kh3 Rf2 Rhf1 Nh4 Bd7 Nf3 Be6+
1q1nq2N/4N1p1/1nr2p2/1N4P1/qQNbq1R1/P6k/ppBB1n2/1BN3K1 b - - 0 1 legal: proof: a4 b5 Nf3 d5 Ng1 b4 Ra2 Bd7 Ra1 Bb5 axb5 Qd6 Ra6 Qd7 Ra1 Qd8 c4 dxc4 Na3 a5 Nh3 a4 Nb1 a3 Ng1 a2 Nf3 Nd7 Ng1 Ra3 bxa3 Nb8 g4 e5 f4 exf4 g5 h6 Nc3 h5 d4 Na6 Rb1 Bc5 Rb2 Nb8 Rd2 Bf8 Rd3 Qc8 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 h4 Ke6 e4 c5 b6 b3 e5 Kf5 h5 g3+ Kg2 b2 d5 f3+ Kh3 f2 Kg2 f6 h6 Nc6 e6 Qe8 d6 Nd8 b7 Ne7 b8N Nd5 e7 Nb6 Nd5 c3 h7 c2 d7 c4 Bd2 c1Q Rh4 c3 Nc6 c2 Nc7 Qb1 Ne5 c1Q Qa4 Qd1 Qb4 Qa4 Rg4 Qbc2 Bb5 f1Q+ Kh1 Qe2 Nc4 Qe5 Ne2 g2+ Kg1 Qce4 Nc1 Rg8 h8N Qh2+ Kf2 g1N+ Kf1 Qg3 Bc6 Qh2 Nb5 Nh3 Bd5 Qhe5 Bf7 Nf2 Kg1 Qb8 Bh5 Qg6 e8B Bc5 Bf7 Bd4 Be8 Nf7 d8N Rf8 Nc6 Nd8 Bf7 Re8 Bg8 Re6 Bh7 Rd6 Rg3 Re6 Bd1 Rd6 Bc2 Re6 Rd3 Kg4 Ne7 Qe8 Rg3+ Kh4 Rg4+ Kh3 Bg6 Rc6 Bb1 Qf3 Bgd3 Qe4 Bdc2
BNb3NR/1q2R1K1/2n1p1br/4N3/3nP3/rqbR3q/nNN1PQ2/3r2kr b - - 0 1 illegal: No proof kernel
r5nq/4pqk1/1n1q3n/1Nn1nq2/P3PR2/bB4rR/4bK2/R1NRQRN1 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 a4 Kf7 d4 g5 f4 b5 h4 c5 h5 g2 d6 b3 f5 b4 f6 b2 h6 c4 d5 g3 d7 g4 h7 b3 e3 c3 d6 c2 Nd2 b1Q Ra3 c1N Nc4 b2 Nb6 Bh6 Qf3 Qg6 Rh2 b1Q Qc6 Nb3+ Qc1 Ba6 Nh3 g1Q Rc2 g2 Ra1 g3 Nd5 Qh1 Ng1 Nc5 Rf2 Qbf5 e4 Be2 Nc3 Qf8 d8R Nbd7 Rf3 Nb6 d7 Qh2 Qb1 Bc1 Na2 Ba3 Rf4 Qe8 Qd1 Kf8 f7 Qd6 Qd2 Kg7 f8R Qef7 Nc1 Qh4 Rc8 Qhh5 d8N Qh1 Nb7 Qhh5 Nh3 g1N Rcd8 g2 Kf2 Nf3 Qe1 g1N Rd7 Nh2 Rdd8 Qc6 Nd6 Ngf3 Nb5 Ne5 Rd1 Qd6 Ng1 Nhg4+ Kg2 N4f6 Kf2 Nh6 Bh3 Rg8 h8R Kg6 Bg4 Rg7 Bh3 Nfg8 Bf1 Kf6 Rh7 Rg3 Rh8 Bg4 Bc4 Be2 Bb3 Kg7 Bc4 Qh7 Bb3 Nf5 Rh4 Qfd5 Rh1 Q5e6 Nf3 Qg5 Rf6 Qf7 Rf1 Qh3 Rh4 Qgh5 Ng1 Qh8 Rh5 Nfh6 Rf4 Qhf5 Rh3
3bB2B/1Rn1B2R/rbrRR1k1/R3rpn1/Q1q2Pb1/N1n1b1P1/6qr/K7 b - - 0 1 illegal: No possible last move
R1NN2N1/5rk1/1n2b1q1/3b2b1/1Brpq1b1/1q1PNq2/1n1nB1PQ/B3K2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ra3 exf4 Rb3 c5 axb5 Ba6 b6 Bb7 b5 Bc8 Rb4 cxb4 e4 a5 c4 f5 c5 Kf7 d3 d5 b7 h5 b6 a4 e5 d4 c6 a3 e6+ Kg7 e7 h3 c7 b3 Qe2 a2 Qf2 a1Q Qc2 f3 Qa2 b2 Nd2 b1B Kd1 f2 Qb3 f4 Qc4 h4 Ne2 h2 Rg1 h1N Nb3 h3 Qb5 f3 Ng3 h2 Qe8 Qa2 Bg5 Nf6 Na1 Rh7 Qd7 Ne4 Qb5 Qdd5 Nb3 Nd2 Qb4 Qe4 Qd6 Ra4 Na1 Qb3+ Nc2 Nd7 b8N Rc4 b7 Ba2 Be2 f1B Ke1 Nf2 Nh1 Nb6 Nc6 Be6 b8B Nd1 c8N Nb2 Nd8 Bd5 Ne3 Qg6 Nf2 h1Q Qh2 Qe4 Bd6 Qg6 Qh5 Qh4 Bb4 Qhe4 Nh1 Be6 Qh2 Bd5 Bd1 Be2 e8N+ Kh8 Bc2 Be7 Nf6 Kg7 Ng8 Bf6 Bf4 Bg5 Bfd6 Be6 Bc3 Bd1 Bdb4 Bd5 Kf2 Be2 Ra1 Be6 Kg3 f2 Bd1 B2g4 Bf3 f1Q Be2 Qfd1 Kf2 Bd5 Bf1 Qdf3+ Ke1 Rh5 Be2 Rh8 Nf6 Rf8 Ng8 Rf5 Ng3 Rf7 Nh1 Bb1 Ra5 Ba2 Ra8 Bde6 Qb8 Qa3 Nh6 Rcc7 Ne7 Nd1 Nhg8 Bad5 Nc8 Qb3 Ba1 Rc4 Qd6 Nb2 Qh2
3BR1Nn/2R5/b2n3Q/b1p1Rb1q/1nP3BP/rb1k1r1B/1r1BB3/qn4K1 b - - 0 1 legal: proof: f4 b5 g4 h5 d4 e5 g5 b4 Nc3 b3 Nd5 exd4 Ne3 g6 Ng4 hxg4 f5 gxf5 axb3 f4 b4 Be7 b5 Bf8 Kf2 Ke7 e4 Kd6 b4 Ke5 h4 d5 c3 f5 b6 a5 g6 a4 b5 f3 b7 d3 g7 g3+ Ke3 f2 b6 a3 Bg2 f1B Rh2 f4+ Kf3 a2 Bb2 d2 Bc1 d4 Bb2 d3 Qb3 d1N Qc2 d2 Bh3 g2 Ne2 g1R Bc1 Qg5 Nd4 Na6 b8R Nf2 b7 Bf5 Re8+ Ne7 g8B Nb4 b8B Ra3 Bb3 Ba6 c4 d1B+ Qe2 Rf1 Bd2 Qh5+ Kg2 Rh6 Qe3 Rb6 Rb1 a1Q Nc6+ Kd6 Bc2 Ng6 Ne7 Ke5 Ng8+ Be7 Ba7 c5 Ba4 Rb5 Bb6 Bb3 Bd8 Nh8 Rh1 f3+ Kh2 Qg4 Qh6 Kd4 e5 Kd3 e6 Qh5 Rg1 Bf6 e7 Ne4 Re1 f2 Rg7 Nd6 Re2 Bc3 Re5 Rb1 Rh7 f1N+ Kg1 Rb2 Rg7 Ba2 Bd1 Bb3 Rf8 Rb7 e8B Rf7 Bd7 Rf6 Rfe8 Rf8 Bf4 Nd2 Rf7 Nb1 Bd2 Nc6 Be6 Ba5 Rc7 Nb4 Bd7 Be6 Bhg4 Rf3 Bh3 Bf5 Bc8 Bg6 Bcg4 Bf5 Be2+
K5RB/1p6/3q2BP/QbNn1B1b/NP4nb/1n1r3B/2rNrkn1/2br3B b - - 0 1 legal: proof: b4 c5 d4 cxd4 f4 h5 g4 e5 fxe5 hxg4 a3 a5 Ra2 a4 Rb2 Qb6 Rb3 axb3 a4 Qd8 Kf2 Ke7 c4 Ke6 e4 f5 h4 d5 c5 g5 a5 b2 c6 g3+ Kf3 d3 a6 g4+ Kf4 d2 c7 g2 h5 d4 h6 g3 a7 d3 Rh5 Nc6 Kf3 f4 Qe1 d1B+ Ne2 g1B Nd2 b1N Bb2 g2 Ba3 Nce7 Rh1 Nd5 Bb2 Bd7 c8B Be3 Rg1 Be7 Qh4 Bf6 Qh5 Bh4 Ba1 Rb8 a8N Ngf6 Nb6 Re8 Na4 Ng4 Qg5 Qc7 Bb2 Qd6 Nc5+ Kf7 Qd8 Kg6 e6 Kh5 e5 Bb5 Ke4 f3 e7 f2 Bf5 Rc8 Qa5 Red8 e8B+ Kg5 Rh1 g1R e6 Rg2 e7 Rh2 Bg2 f1N Bh3 Rd7 Nc3 Re2 Beg6 Rdd8 Ndb3 Bc1+ Kd4 Kf4 e8B Kf3 N3a4 d2 Rg1 Nfe3 Bc6 Kf2 Bc3 Ng2 Ba1 Bc2 Bb2 d1R+ Nd2 Rc7 Bd3 Qh2 Bh5 Nb6+ Nd7 Ne1 Kc5 Nf6 Nf1 Nd2 Rg8 Ng4 Bh8 Bb3 Be8 Bf7 Bf5 Bh5 Beg6 Rcc8 Ne5 Rd3 Nd7 Rf8 Bh1 Nd5 Nb2 Ng2 Na4 Rg3 Kd6 Nb3 Nd2 Rd8 Qa6 Rc8 Qa5 Rc2 Ndc5 Nc3 Kc7 Nd5+ Kb8 Rd3+ Ka7 Qd6 Ka8
b3NR1n/2RPk3/Q5N1/NN2r3/K1pnp3/1nr1n2B/2Pq1qq1/3nN1bR b - - 0 1 legal: proof: e4 b5 g4 f5 a4 fxg4 axb5 h5 b3 d5 Ba3 dxe4 Bd6 h4 Bg3 hxg3 f4 a5 d4 g5 Kd2 c5 Kc3 e5 h4 g2 b4 c4 d5 a4 d6 e3 b6 e4 f5 g3 f6 a3 b7 e2 b5 e1N Kb4 g4 h5 a2 h6 Ra5 b6 Re5 h7 Nc6+ Ka3 Nh6 b8R Nf7 b7 Nd4 Nh3 g1Q Ra8 g2 b8N g3 Nc3 Bb7 Nc6 Qf2 Na5 g1Q Ka4 Ng2 Ng5 Ne3 Nf3 g2 Nb5 Qh2 Qc1 g1N Ne1 Nh3 Qa3 Qhg2 Rc8 Be7 Rc7 Ba8 Rc1 Rf8 h8N a1N Ng6 Nab3 Ra1 Nh8 d7+ Kf7 Rc1 Bc5 Rd1 Ke6 f7 Qdg5 Rd2 Rb8 f8N+ Kf7 Nh7 Qgf4 Nh4 Ke7 Nf6 Rg8 Rd3 Rg3 Ne8 Qd2 Qa1 Nf2 Qa2 Nfd1 Ng6+ Kd8 Qa3 Ba7 Qd6 Qff2 Qa6 Bc5 Nh4 Ke7 Rc3 Nef5 Rf3 Ba7 Rf4 Rc3 Rf3 Nfe3 Rf8 Bc5 Ng6+ Kd8 Rf7 Bd6 Rh5 Qh3 Rh4 Rg5 Ng7 Bh2 Rh7 Bg1 Ne8 Re5 Rf8 Qhf3 Rh1 Qh3 Nf4 Ke7 Bg2 Qhf3 Bh3 Q3g2 Ng6+
1n1r1bR1/K3pQ1N/P3n3/3nq1qB/p2NP3/1b3Nn1/B1rN2k1/BnN3r1 b - - 0 1 illegal: No proof kernel
2n4K/2q1B1R1/3Qp1B1/1p1rRN1n/1bkR1RrP/2b5/1Pb1q2n/2b1R1bB b - - 0 1 illegal: No possible last move, all moves rejected
3b1B1K/1q1bN2b/1r1NN3/3Nr3/qQ3R1N/n1R1p2n/qR2PpnP/1k4n1 b - - 0 1 illegal: No possible last move, all moves rejected
4R1bq/1bPNpQ1b/3R2BK/2n2R2/1b2qr1R/4pr2/2r1P1N1/2Rqnk1N b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 h4 g5 Bd2 gxh4 Bf4 f6 Be5 fxe5 Kd2 Kf7 g4 Kf6 c4 Kg5 b4 Kf4 f3 Kg3 f4 Kf2 f5 a5 b6 h5 b5 d5 f6 h3 g5 h4 c5 e4 g6 a4 b7 h2 c6 a3 b6 e3+ Kd3 a2 c7 h3 g7 Na6 b8R Be6 b7 Nh6 g8R Ng4 f7 Bg7 f8N Ne5+ Kc2 d3+ Kc1 d2+ Kc2 d4 Na3 d3+ Kc3 Rh4 Qb3 d1B Bg2 d2 Nd7 Nf3+ Kd3 Rf4 Rf8 Bc3 Nc2 Bb4 Ne1 Qe8 Rf7 Qh8 Re8 Ra7 Rf6 Bg8 b8R Ra8 Rb1 a1R Rb5 Ra7 Qc4 Bh7+ Rg6 Bb3 Qg8 Bd5 Qe6 Bb7 Qf7 Bg8 Rd6 Be4+ Kc4 Beh7+ Kd5 Ra2 Ke6 Rc2 Rh5 Nc5+ Kd5 Ne5 Be4 Nf3 Bg6 Raa2 Rg5 Rc1 Rh5 Rd1 Rc1 Rc2 Nd3+ Kg2 Nf2 Rf1 Re5 Ne1 Nf3 Rf6 Rh5 d1Q+ Ke5 Rf4+ Rf6 Rh4 Kf5 Rd4 Kg5 Rf4 Ne4 Rf2 Kh6 Rf1 Ng3 Kf2 Rg1 h1Q Rhf5 h2 Nh4 Qc6 Re6 h1B Rd6 Be4 Ng2 Qcd5 Ra1 Q5d4 Rh1 Bb7 Rh2 Qe4 Rc1 Kg1 Rh4 R1f3 Nh1 Kf1 Qf6 Na4 Qf8 Nc5 Qf7
7n/Pbq1b3/p2Br2N/1R5B/Pr1R1B1k/BRQ2Bp1/1nn2qr1/1Kb2n2 b - - 0 1 illegal: No proof kernel
8/1p2Pq1q/2N1nr2/n1Rbk2b/p2N4/1N2br1n/Pn2BQ2/KBB2qNN b - - 0 1 legal: proof: d4 c5 g4 f5 b4 fxg4 bxc5 h5 d5 h4 Nd2 e6 Rb1 exd5 Rb3 d4 Rg3 hxg3 c4 Ke7 h4 Kf6 e4 g5 f4 a5 c6 d5 c7 a4 h5 g2 h6 d3 c5 g3 c6 g4 h7 d4 f5 Na6 Rh3 Bh6 Rh1 Qd5 Qb3 Nc5 Kd1 Be3 Qc2 Ne7 Nb3 d2 Be2 Ke5 f6 Be6 c8N Rf8 h8N Ra6 c7 Nc6 f7 Na5 Nd6 Qc4 c8B Bd5 Nf5 Rf6 Rh5 Ne6 Rg5 Qc7 Qc5 Qe7 Kc2 d1N Kb1 d3 Qc2 d2 Ka1 Nb2 Bd7 d1B Qd2 Rc8 f8N Rc3 Qe1 Qg7 Qf2 Qh7 Bdb5 Qf7 Bbd3 Qh7 Bb1 Qf7 Nh3 g1N Rh5 g2 Ng3+ Ng5 Nh1 g3 Ne6 Qh7 Nhf4 Nh3 Ned4 g1Q Nhg6+ Kd6 Bb5 g2 Ne5 Qf1 Be2 g1Q Nec6 Ne6 Rf5 Qgg6 e5+ Kd7 Rg5 Qgf7 Rh5 Nc5 e6+ Kd6 e7 Ne6 Bc4 B1f3 Nfe2 Rd3 Rg5 Bh5 Ng1 Rc3 Be2 Rd3 Rg8 Rc3 Rc8 Rd3 Na7 Ke5 Rc6 Bd2 Rc3 Rdf3 Rc5 Be3 Nac6+
bN4RK/1prBR1B1/b2q2B1/Pq2bbB1/nP2q3/2k3p1/Q2r3B/4R1rn b - - 0 1 illegal: Other
1n1NN2n/qBnn1P2/7p/1nNrk3/p1r1RN2/6n1/P2QBBb1/2b1bNK1 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 h5 f4 Na3 g6 Rb1 gxh5 Rb3 h4 Re3 fxe3 f4 Kf7 g4 Ke6 d4 a5 c4 b5 c6 a4 c7 b4 g5 b3 g6 e2 Kf2 e1N g7 h3 c5 e3+ Ke2 h6 c6 b2 Qd3 b1N Qd2 h2 Qb4 Ng2 Kf3 e2 Kf2 e1N Be3 Bb7 c8N Nf6 g8N Nc3 c7 Nh4 Nc2 Bg2 Nb6 Ncd5 c8B+ Nfd7 Qd2 Qc7 Bb7 Ng6 Be2 Nf3 Nh3 Ra5 f5+ Kd6 f6 e5 f7 e4 Rb1 Bg7 Nf6 Rc8 Rb2 Nh8 Nf4 Qc5 Rb3 Nc7 d5 Nd4 Rd3 h1N+ Kg1 Ke5 d6 Ng3 Bf2 e3 Ne8 Ndb5 Rd4 Bf8 Na8 Qa7 Nb6 Nf6 d7 Ba3 d8N Bc1 Ne1 Nfd7 Nf3+ Kf5 Nh2 Ke5 Bef3 e2 Nf1 e1B Be2 Nh1 Nbd5 Ng3 Nc3 Nd5 Ne4 Rc4 Nc5 Ndc7 Nd6 Ra6 Ne8 Rd6 Qd3 Rd5 Qc3 Qa6 Qd2 Qa7 Re4+
3B1qBN/1N2qn2/br3p1k/4RQ1p/3brr1P/b2N1P2/n2p1BnK/3B3B b - - 1 2 legal: proof: b4 c5 a4 b5 d4 cxb4 axb5 e5 Qd2 exd4 Qd3 Qb6 Qd1 Qd8 e3 g5 f3 g4 Ra4 g3 Ra2 Ne7 Ra1 Ng8 Ra3 Bd6 Rd3 Bf8 Rd2 Qb6 Rf2 gxf2+ Kd2 Qd8 Ke2 h5 h4 d5 c4 a5 g4 f6 e4 Kf7 c5 Kg7 b6 b3 e5 a4 b7 b2 c6 a3 c7 a2 g5 a1B g6 Ra3 e6 Bc5 e7 Rh7 e8B Nc6 b8B Na7 Qd3 Ra4 Bg2 f1N Kf2 Nc6 Na3 b1R Ne2 Nh6 Kg1 Nb4 Nf4 Nf7 Nb5 Kh6 g7 Qe7 g8B Ne3 Kh2 Ba6 c8N Na2 Bc7 Ba3 Nbd6 Rb6 Qf5 d3 Nb7 d4 Bd8 d2 Re1 d1Q Bh1 d3 Ncd6 Ng2 Re5 Bd4 Be3 d2 Bg1 Qc2 Bf2 Qc5 Nd3 Rg7 Bd7 Rg4 Be6 Rf4 Bb3 Rab4 Bd1 Re4 Nc8 Qf8 Ne7 Rf4 Ng6 Qce7 Re6 Bc5 Nh8 Rbe4 Re5 Be3 Qh3 Bd4 Qf5
2N5/1p4r1/1b3rkp/2N1KR2/1NBn1p1Q/rR1bN1n1/bP1PrN2/R4qr1 b - - 0 1 illegal: No proof kernel forced: bxDB
n2r4/3p3b/1qPNbpN1/1n4Nq/KbB1RN2/2N1QPR1/1R2p2n/2b1k1r1 b - - 0 1 illegal: No proof kernel
2rQ2n1/R2b3k/1B3Np1/B1Nr4/pqBnp3/1B1bPB2/Kb1q2Pp/N6r b - - 1 2 legal: proof: d4 b5 b4 c5 h4 cxd4 a4 bxa4 h5 g6 Ra3 Ba6 Rg3 Bb7 hxg6 Ba6 g7 Bc8 Rg6 fxg6 Kd2 Kf7 c4 h5 Kc2 e5 Kb2 d5 f4 a5 f5 e4 f6 h4 c5 d3 e3 d2 c6 h3 c7 h2 b5 d4 b6 a3+ Ka2 d3 b7 Nh6 Ne2 Kg8 f7+ Kh7 Nec3 Qd7 Na4 Qb5 Nc5 Bd7 c8B Nc6 b8B Ng8 Bc7 Nd4 Bb6 Qb4 Bb2 Bd6 Bc3 Be5 Ba6 Rf8 Bc4 Rc8 Be2 a4 Rf1 Rd8 Rf6 Rc8 Bf3 Rd8 Rc6 Bf6 Rc7 Be5 Qe2 d1B Nd2 Bc2 Ndb3 d2 Qd1 Bd3 Ra7 Bf6 Na1 Be5 Qc2 d1Q Bb3 Qd2 f8N+ Kh6 Nh7 Rc8 Nb7 Rc5 Nf6 Rd5 Nh5 Kh7 Nc5 Qc4 Bca5 Qcb4 Kb1 a2+ Kb2 Qd1 Qf2 Bf6 Qh4 Be5 Qd8 Qdd2+ Nc2 a1R Nf6+ Kh6 Bc7 Rh1 Bcb6 Ne6+ Ka2 Bb2 Na1 Nd4 Qc7 Ne7 Bc4 Rc8 g8B Kg7 Be6 Ng8 Qd8 Kh8 Bd1 Kg7 Beg4 Kh8 Bdb3 Kg7 Bf3 Kh8 Ng4 Kh7 Nf6+
3qRK2/pB5Q/B1r1b2n/2pr1pR1/qbR3Rp/2Pb4/3kqn1P/3B2RN b - - 0 2 legal: proof: d4 e5 a4 exd4 e4 b5 axb5 f6 e5 Nc6 e6 Nb8 Bg5 Nh6 Bf4 Ng8 Be5 Bb7 f4 Ba6 f5 Bc8 Nd2 fxe5 Ne4 g6 f6 Nh6 Ng3 Ng8 Nf5 gxf5 Kf2 c5 Kg3 h5 Kh4 d5 Kg5 e4 Kg6 e3 g4 e2 b4 e1Q e7 Kd7 Kf7 Kd6 e8B Ke5 g5 Kf4 g6 Ke3 g7 h4 b6 d3 c3 d4 b7 d2 b5 d3 b6 Qd4 Ne2 Be7 Bc6 Qd7 Rg1 Na6 b8R Qd8 b7 Rh6 Ng3 Qe2 Ra4 Nb4 Nh1 Bd7 Qb3 d1B Qd5 Bc8 Qd7 d2 Rg5 Nd3 Rc4 Nf2 Rcg4 Qe1 Ba6 Be2 Bf3 Bf1 Bd1 Qe2 Qc7 Bd7 Rc8 Bd6 b8R Bg3 Qb7 Bc7 Rg1 Ba5 Rc7 Be8+ Kf8 Bb4 f7 Rc6 Rcc8 Nh6 g8B Qf3 Rc7 Bd3 Rd7 Qh5 Rd4 Qe2 Rc8 Rb8 Rc4 Ra8 Rc7 Rb8 Rd7 Rbc8 Rdd4 Bd7+ Kg7 Ra8 f8R Be6 Re8 Rac8 Kf8 R8c7 Ng3 Rd7 Rdg4 Rdd6 Qh7 Rd5 Ba4 d1Q Nh1 Qa1 Bd1 Kd2 Bf7 Qaa5 Bh5 Bg8 Bf7 Qa4 Be6 Bf7 Bec8 Be6 Bcb7
5QK1/4NN1N/1rqpr1n1/B1Bnp1bq/1qp5/3P1p2/1kPB2n1/N2b1RN1 b - - 0 2 legal: proof: f4 e5 h4 g5 a4 gxh4 f5 b5 axb5 Qf6 Rh2 Qe7 Rh1 Qd8 b4 Qe7 e4 Bg7 Bc4 Qf8 Be6 Ke7 Ra3 Qd8 Rf3 Kf8 Rf4 exf4 e5 Bh6 Bb3 Ke7 e6 Bf8 Bc4 Kf6 e7 Kg7 Be6 fxe6 Nf3 Kf6 Ng1 Kf7 Ke2 Kf6 Kd3 Ke5 Kc4 a5 e8N h5 g4 c5 b6 a4 g5 h3 d3 h4 f6 h2 f7 h3 g6 a3 g7 a2 b7 a1Q b5 d6 b6 Nc6 b8B Nb4 b7 Qb2 Be3 Qh4 Qf1 Qh5 Ba7 Ne7 b8B Ng6 g8N Bh6 f8N Bg5 Nd2 Nd5 Nb3 Rh6 Bc7 Rb8 Nd4 Rb6 Nge2 Bd7 Rg1 h1N Nb3 h2 Nef6 Nf2 Na1 h1Q Bd2 Nd1 Ne7 Qa3 N6h7 Qa5 Bb4 N1e3+ Kb3 Nf6 Bab8 Ra6 Be1 Nh4 Ba7 Qc6 Nf5 Rg6 Nh6 Neg2 Bd2 Qab6+ Kc3 c4 Bd8 Qb1 Bc5 Bc8 Ba5 Rb6 Qf2 Bd7 Rf1 Bc8 Bc1 Kd5 Ng1 e5 Kd2 Bf5 Qf3+ Be4 Ke2 Qb4 Bd2 Rg8 Ng6 Re8 Kf2 Re7 Qh3 Bf3 Qc8 Be2 Qf8 f3 Kg3 Re6 Nf7 Bd1 Bf2 Be3 Ne7+ Kd4 Kh3 Nd5 Kg3 Qh6 Kg4 Ng6 Kf5 Qh2 Bh4 Bg5 Bg3 Kc5 Bf2+ Kb5 Bd4 Ka4 Bc5 Ka3 Kg4 Bh4 Kh5 Kb2 Kh6 Bg5+ Kg7 Qh5 Kg8
B4n2/Bp6/2pQ1n1p/N3p1r1/P2nN1N1/2B1qBrb/1Pq2R1b/b2B1k1K b - - 0 1 illegal: Other
qr2n2B/Bpn1q3/Q1nR3R/1RB1pbp1/3NP3/Rn1k4/p3R1Pr/b4K2 b - - 1 2 illegal: No proof kernel
1B2K3/2q3p1/pNrpp1R1/RR1P1Q2/Pbr3b1/N1nRb1k1/2R1b1N1/6qn b - - 0 2 legal: proof: e4 f5 d4 fxe4 g4 h5 b4 hxg4 Bd3 c5 bxc5 exd3 Kd2 Kf7 Kc3 Ke6 Kb4 Kf5 Kb5 d2 f4 e6 h4 g3 c4 g2 c6 b6 c5 Qe7 d5 Qf7 c7 Qe8 c6 Qd8 h5 Bc5 h6 Ne7 h7 Bb4 Rh3 Na6 Qc2+ Kg4 f5 d1B f6 Nc5 f7 Ne4 f8R Nf5 Rf6 Nfg3 Nf3 g1B Bf4 Be3 Ne1 Nh1 Na3 Re8 h8R Nc3+ Kc4 Bb7 c8R Qc7 Ng2 a6 Rb8 Rc8 Bg3 Ra7 Rg6+ Kf3 Rh2 Ba8 R8h3 b5+ Kb3 Be2 Be5+ Kf2 Qf5+ Bf3 Bf4 Bg4 Rg3 Rb7 Rgh3 Rb6 Rg3 Qa7 c7 Rc6 Rb7 Rc4 Rb6 Bc6 Rb8 Rd8 c8N Qc7 Nb6 Rc8 Rb7 Bd4 Rd3 Be3 Bg5+ Kg3 Bd8 Qe5 Bc7 Qd6 Bb8 Qe5 Ne1 Qc7 Rc2 d6 Ng2 Bc5 Nd7 b4 Rb5 Rf8 Nb6 Rc8 Rf6 Be8 Rh6 Beh5 Rg6 Nd1 Ka4 b3+ Ka5 b2 Qf8 b1Q Qf5 Qc1 Nb1 Qe7 Nd7 Nc3 a3 Qg1 Raa2 Bd4 Ra1 R8c5 Kb6 Rc6+ Kb7 Bc5 Raa2 Rb6+ Kc8 Qf7 Kd8 Rc6 Ra1 Bb4 Nb6 Qc7+ Ke8 Kh2 Rc5 Be2 a4 Bhg4 Ra5 Bbc5 Na3 Kh3 Rb1 Kg3 Rbb5 Bb4 Rd4 Qb1 Rdd2 Qg1 Rd3
5q1n/1NrNpRNp/1nk5/BqbN1N1B/1Pp1q1rP/1B1b1pQ1/K7/2q5 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 f5 c4 dxc4 e4 g6 f4 fxe4 f5 g5 Ra3 Nc6 Rf3 Nb8 Rf4 gxf4 g4 Kd7 h4 c5 d4 a5 Kd2 a4 Kc3 a3 g5 e3 b6 a2 Kb2 e2 g6 e1Q d5 Nf6 g7 Nh5 g8B Na6 b7 Kc7 b8N Qe4 f6 Bh6 f7 Qf8 Nc3 Bf5 Be2 Ra7 Nd7 Nb8 d6+ Kc6 Nf3 Rc7 Nd5 c3+ Kb3 a1Q Qe1 c2 Rf1 Qa5 Be3 c1Q Qg3 Qb6 Ka2 Qb5 Bd1 Bg6 Bb3 c4 Bb6 Bg7 Ba5 Bd4 Rf2 Bc5 Nd4+ Kb7 Nf5 Kc6 N7f6 Nd7 Ne8 Nb6 d7 Nc8 Neg7 Nb6 Rg2 f3 d8N+ Kd7 Nb7 Kc6 Rg1 Nf4 Rg2 Qc8 f8N Qe8 Bf7 Rg8 Nd7 Qf8 Nfe3 Bf5 Bh5 Ng6 Rg1 Nh8 Rg2 Qd4 Rg1 Bd3 Nef5 Qe5 Re1 Qe6 Re4 Qe5 Rf4 Qe4 Ne8 Rg4 Neg7 Bg1 Nh6 Be3 Rf7 Bc5 Nhf5
bn2K3/R1bN2pB/np1q3p/2BBR2B/6Q1/3Pr1q1/1P3kp1/b1rRB2b b - - 0 1 illegal: No proof kernel
2q2k2/pb1Rn2B/1pQ5/3BNB1p/1RPp3r/1qp1B1br/3P2Kn/2r1R1B1 b - - 0 1 illegal: No proof kernel
2B2N1R/RbN3pQ/1n2Kb2/1b3prp/qN3N2/2P2Pp1/p7/kbRN1rn1 b - - 0 1 illegal: No proof kernel
NbQ1R1nN/5r2/4r2b/2N4r/1QkBb1qP/p4P2/6Nn/2N1K1Bn b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh8 b5 Na6 b6 Nb8 b7 a5 Ba6 Rxa6 b4 a4 b5 Ra7 b6 cxb6 Ra3 Ra8 Rc3 Be6 Rc8 Bxc8 d4 Kd7 h4 Kd6 h6 g5 f3 e5 h7 a3 f6 b5 f7 e4 Ne2 b4 Rh2 e3 Nd2 g4 Qc2 g3 Nb1 b3 Nd2 g2 Nf1 g1N Bb2 Ra6 Nc1 e2 Ne3 Nc6 b8N Bh6 Ng2 Nh3 Nd7 Nf2 Nb6 Bf5 Na8 Ne5 Qc8 Nh1 f8Q+ Qe7 Ba1 Be4 Qf4 Rc6 Qd2 Qa7 Qb4+ Qc5 Bb2 Ng4 Bc3 Rc7 Ba1 Rf7 Bc3 Ke7 d6+ Kf6 d7 Ke6 d8N+ Kd5 Nb7 Qc4 Ba1 b2 Nc5 b1R Bc3 Rb3 Ba1 Re3 Bb2 Kd6 d5 Qd4 Ba1 Ke5 d6 Kd5 d7 Qc4 Rh3 Nh2 d8B Qd4 Be7 Qg7 Rg3 Qg4 Qb1 Kc4 Bd4 Bc6 Bg5 Re6 Bge3 Be4 Bf2 Bf4 Bg1 Bb8 Kd2 e1B+ Kd1 Kd5 Qb4 Bd2 Ke2 Bh6 Ke1 Qh3 Rg6 Qg4 Rf6 Rg7 Rf8 Rf7 Qb6 Kc4 Re8 Rff6 Qb2 Rf7 Qb4+ Kd5 Nd7 Bg7 Na2 Rf5 Qd2 Rh5 Qb2 Bh6 Nc5 Kc4 Qb1 Nf6 Qbb7 Rf8 h8N Rf7 Nc1 Ng8 Qb4+
1B1n1b2/1n2R1bR/2k4N/1nbR2R1/r3PP2/1b4rQ/1RBq4/1KbQ2q1 b - - 0 1 legal: proof: c4 a5 b4 h5 a4 b5 axb5 d5 cxd5 Nh6 g4 Ng8 gxh5 Qd7 Bh3 Qd6 Bf1 Qd8 d4 axb4 e4 f5 Na3 e5 Nc4 exd4 Ne3 f4 Ba3 fxe3 Bb2 Qh4 Bc1 Qd8 f4 Kd7 h4 g5 b6 c5 h6 e2 Kd2 e1B+ Kc2 c4 b7 g4 d6 b3+ Kb2 d3 h5 c3+ Kb1 c2+ Kb2 g3 h7 d2 h6 g2 Ra3 Nc6 b8R Na5 Nh3 g1B Nf2 Nb7 Ra5 Ne7 Bd3 Rg8 h8R Nc6 h7 Rg3 Ng4 Bc5 Nh6 Ra6 Ka1 b2+ Ka2 b1N Ba3 c1B Bc2 Bg7 Re8 Nc3+ Ka1 Ra7 h8Q Nb5+ Kb1 Qg5 Re6 Ncd8 Re7+ Kc6 d7 Bef2 Rh4 Bb4 Bb2 Bfc5 Be5 Qg4 Qh7 Qe2 Qf5 Qe1 Rh5 Qg1 Qh3 Ra6 Rg5 Ra7 Ra2 Ra4 Rb2 Ba3 Ra8 Bab4 Bb8 Ba3 Qdf1 d1Q Ra7 Qd2 Qd1 Bab4 Re8 Bcf8 Ree5 Bbc5 Re7 Nf7 d8R Be6 Rd3 Bb3 Rdd5 Nfd8 Qh2 Bc3 Rh7 Bcg7 Qh3 Na5 Rf7 Nab7 Re7
B2r1NQ1/4PK2/b4B1R/NPQ5/6nB/1nB1n1r1/n3kBnn/br5b b - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 a5 axb5 e5 Rh2 exf4 Rh3 Qd7 Rh1 Qd8 g4 f5 b4 f3 b6 f4 b5 Qe7 Ra4 Qg5 Rb4 Qf5 gxf5 axb4 Kf2 Kf7 e4 Kf6 d4 Kg5 b7 Kg4 d6 h5 f6 c5 d5 h3 e5 b3 d7 c4 d8B h2 e6 h4 f7 b2 d6 h3 e7 c3 d7 c2 Bc7 Bg7 f8B Na6 d8B Nh6 b8Q Nc5 Bd3 Ba6 Bd2 c1N Ne2 Na2 Nd4 Nf5 Na3 b1R Ne6 Ne3 Qg1+ Ng2 Be4 Ba1 Bg7 Rg8 Bf6 Nb3 Nc4 Rg5 Qb6 Rc8 Bb8 Rg6 Bdc7 Rd8 Nf8 Rg8 Bce5 Rg7 Be1 Rg5 Kf1 f2 Ke2 f1N Ba8 Ne3 B5c3 f3+ Kf2 Rg8 Ba7 Kf4 Na5 Rg3 Nb7 Ke4 Qc5 Kd3 Na5 Rg7 Ng6 Rgg8 Kg3 f2 Kf3 f1N Nf8 Rg4 Beh4 Rg6 Bce5 Kd2 Ke4 Ke2 Bc3 Rg3 Ke5 Nd1 Qgd4 Nde3 Rg1 h1B Ke6 h2 Kf7 Nd1 Qd7 Nde3 Qe8 Nc2 Nc6 Rh3 Qb4 Nf4 Qd7 Bg2 Bg3 h1N Na5 Nf2 Rh1 Bgb7 Rh2 Bh1 Be3 Ng2 Qc5 Nfd2 Qdf5 Nf3 Qg6 Ng4 Bef2 Nce3 Qg7 Nge1 Qg8 N1g2 Bgh4 Rg3 Bhg5 Rdd1 Rh3 Rd8 Rh6 Nfh2 Bh4
K3kQb1/1Q6/b2qb3/n1Q1nq1b/1Nb2R1P/1Q5P/NQ1B3n/q1R3n1 b - - 0 1 legal: proof: e4 a5 d4 d5 f4 b5 b4 axb4 Bd2 c5 Bc1 Ra6 Ke2 Rd6 Kf2 cxd4 Ke1 d3 Nc3 d4 Nb1 Rd5 exd5 Bb7 Ba3 Ba6 Bc1 Bc8 g3 h5 Na3 g5 Bh3 e5 Be6 e4 Bg4 hxg4 Nb1 Rh4 gxh4 Bh6 Nf3 Bg7 Ng1 Be5 fxe5 Qd7 Bb2 Qc7 Bc1 Qd8 Kf2 f5 c4 g3+ Kg2 d2 a4 f4 c5 e3 Kf3 g2 Ke4 b3 c6 g4 d6 b2 Kd5 e2 h3 e1N c7 f3 a5 g3 e6 b4 a6 f2 e7 f1B a7 d3 a8Q b3 Ra5 Ba6 c8Q Nf3 Na3 b1Q Qdc2 d1B Bd2 b2 Kc5 Nd7+ Kc6 Nh2 Rh5 Bg4 Qab7 Be6 Ne2 g1N Nc1 g2 Qcb3 Be2 Qcc7 Ne5+ Kb6 Qa1 Ka7 b1B Nc2 Ba2 Rf5 Bh5 Qb2 B2c4 Na2 Qf1 Rf7 Qf5 Qc5 Qd7 Ncb4 Qc6 Bh6 d2 Ka8 d1B Bd2 Bdb3 Rf6 Ngf3 Rd1 g1Q Rc1 Qd4 Rf7 Ng1 Rf6 Bcd5 Rf7 Bbc4 Qb3 Qa1 Rf6 Qe4 Rf4 Qf5 d7+ Kf7 d8Q Qd6 Qdc7 Ke8 Nc2 Nh6 Ncb4 Nhf7 Qd4 Nc6 Qdb2 Na5 Qb6 Ne5 Qc5 Bg8 Be3 Bde6 Bd2 Kf7 e8Q+ Kf6 Qe4 Kg7 Qd8 Kf7 Qf6+ Ke8 Qb7 Bd7 Qh6 Bde6 Qf8+
nRnb4/2Rb2K1/rQR1P3/rR5B/4bp2/1b2qB2/bN3Pk1/2QR3n b - - 0 1 legal: proof: d4 c5 a4 a5 b4 e5 Bh6 gxh6 Nc3 h5 dxe5 b5 axb5 a4 bxc5 a3 h4 Qxh4 Ne4 Qd8 Ng5 h4 Ne6 Qc7 Nd8 Qxd8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 f5+ Kd4 d5 g4 h3 e4 a2 g5 h2 g6 h4 c6 h3 b6 f4 g7 Ne7 g8R Qe8 c5 Ra5 b7 Bd7 c7 Na6 c8Q Rh6 b8R Nc7 c6 Na8 Rc1 a1N Qb7 Nc8 c7 Be7 Be2 Bd8 Bf3 Nb3+ Kc3 Nd4 Ne2 Nf5 Rg5 Ng3 Kd4 Qe7 Nc3 Rf6 Re1 h1B Na4 h2 Nb2 Bg2 Rc2 h1B Qc1 Bf1 Qb5 Bc4 Rd1 Ba2 Qb4 Bg2 Qc5 Nh1 Qb6+ Kf7 Rh5 Kg6 e6 Qc5+ Ke5 Qe3 e7 d4+ Rc5 d3 Rh7 Kg5 e8B d2 Rb5 Rd6 Beh5 Kh4 Rf7 Kh3 Rg7 Ne7 c8R Rg6 Rc6 Nc8 Re7 Re6+ Kf5 Kh2 e5 Kh3 Rf1 d1B Kg5 Bdb3 Rd1 Rd6 e6 Kh2 Kh6 Kh3 Be2 Be4 Kg7 Kg2 Beg4 Rd4 Be2 Rda4 Beg4 Ra6 Rf7 R4a5 Re7 Be8 Rec7 Bd7 Bf3+
1q2r3/1RB1Q2Q/1r2QK2/1Qq4Q/Pn2R3/bqn1P1Np/2kN2bb/4q3 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 h4 axb4 d4 c5 dxc5 g5 hxg5 Be7 Rh2 Bd6 Rh1 Bf8 e3 Ra6 a3 Ra7 Bc4 Ra8 Ba2 b3 Qf3 bxa2 Qg4 Be6 Qd1 Bc8 Ke2 Ke7 Kf3 f5 g4 h5 g6 Kf6 g7 Ke5 g5 b5 a4 b4 g6 h4 c6 b3 c7 b2 d6 h3 d7 Nf6 g8Q Na6 g7 Ba3 Qgb3 Nd5 g8Q Rb8 Qb7 Nab4 Ne2 Nc3 Qa7 Bb7+ Kf2 Ke4 c8Q f3 Kg3 f2 Qa6 f1Q Qb5 f4+ Kg4 f3 Bd2 f2 Rg1 Qe1 Rf1 Qc7 Kg5 Qc5+ Kf6 Ba8 d8Q Rb6+ Qd6 Bd5 Qf7 Re8 Qcb7 Bc6 Qdb3 Qd1 Qh5 Qc2 Qg8 Qb3 Rg1 Bd5 Rg6 Bc6 Qbh7 Bd5 Be1 f1Q+ Bf2 Qfd1 Bg3 Qe1 Be5 Bc6 Qde7 Bb7+ Qge6 Ba8 Qbc6+ Kd3 Qb5+ Kc2 Bc7 Bg2 Nd2 b1Q Ng3 Q1b2 Rb1 a1B Q6d6 Qg8 Qde6 Qb3 Nf5 B1b2 Rg4 Ba1 Re4 Qgg3 Bd8 Qb8 Ng3 Na6 Q7f5 Nd1+ Kg5 Be5 Qa5 Qbb5 Bc7 Nc3 Ne2 Rb7 Qfh7 Bh2+ Kf6 Qbc4 Rb6 Nb4 Qb5 Q4d5 Ng3 Qb3 Ra6 Rb6 Ra7 Qc8 Rb7 Qa8 Qbd7 Qb8 Qb5
5B1r/1nqqN1N1/p2q1kNN/3b1r1R/1RQK2N1/r2nQ3/2qP1P2/1q6 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Na6 b6 Nb8 b7 Qd7 Ra6 Qd6 Ra1 Qd8 b4 gxh4 b5 e6 Nc3 a6 Nb1 Bc5 Ba3 Bb6 Bc1 Ba7 b6 Kd7 bxa7 Ke8 Bc4 c6 Bb5 cxb5 Ke2 Kf7 Ke3 h5 g4 e5 d6 h3 g5 h4 d7 b4 g6+ Kf6 g7 h2 Bb2 b3 Bd4 b2 Bb6 h3 Qc1 Ne7 g8Q Nd5+ Ke2 e3 Kd3 e4+ Kc4 e2 Bc5 e1Q Ra4 e3 Kd3 e2 Qe8 Nc6 b8N Qd1 Nc3 e1R Nce2 Qc7 d8N Na5 Bf8 b1Q+ Kd4 Nb4 Nbc6 Nb7 Nf3 Be6 Qc4 Qdc2 Nf7 Bd5 Nf4 Re3 Ng6 Ra3 Nce7 Nd3 N3e5 Rh5 Rb4 Rf5 Nh6 Rc8 Re1 h1Q a8N Qh2 Rh1 Qg3 Rh2 Qd7 Rh1 h2 Nc7 Qd6 Ne6 Ra8 Rd1 h1Q Ng7 Qhh3 Rh1 Qc7 Nef7 Qgd6 Nfe5 Qg3 Rh5 Qdd7 Nf3 Qgd6 Nh2 Qf1 Nc8 Qh1 Qe3 Qhb1 Nce7 Qdc8 Nc6 Qde6 Bd6 Q8d7 Bc5 Rg8 Bf8 Rh8 Nce7 Qed6 N2g4#
q2b4/1rN1NNn1/2Q5/3NQ3/P1K1nbq1/2n1NR2/B1k1P2p/R2nb1q1 b - - 0 1 legal: proof: b4 e5 f4 exf4 g4 d5 a4 a5 c4 axb4 cxd5 f3 Ba3 bxa3 h3 b5 Qb3 f5 Qd3 g5 Qc2 f4 Qb3 Bf5 gxf5 g4 Qc2 g3 Qd1 Ra6 Bg2 Rg6 Bf1 Rg4 hxg4 Qf6 Rh2 Qg5 Rh1 Qd8 d4 Kd7 Kd2 Kd6 Kd3 c5 f6 h5 f7 f2 g5 b4 g6 h4 g7 c4+ Ke4 g2 Rh3 c3 Kd3 a2 Qc1 f3 Qa3 c2 Rg3 c1B Nh3 g1Q Ng5 h3 Nc3 h2 Nd1 Nd7 Ne3 Ne7 g8Q Nc5+ Kc4 b3 Kb4 b2 Qg7 b1N Qb2 Ne4 Ne6 Nbc3 Qc2 Nf5 Nf4 Qa8 Bh3 f1N Kc4 f2 Rf3 Be7 f8N Bd8 N8e6 Qg4 Nc7 Rh7 Qg5 Ng7 Qe5+ Kd7 d6 Kc6 d7 Kb6 d5 Ka5 Kd3 Kb4 d6 Bd2 Qc1 Kb3 Nfd5 Be1 Bg2 Nd1 Kd4 Nfd2 Qc6 Nb1 Bh3 Kb2 Kc4+ Nbc3 Bg2 f1Q Bh3 Qg3 Be6 Qg4 Bf7 Qfg1 Bg8 Bf6 d8N Be7 Nf7 Bd8 Ng2 Kc2 d7 Bg5 d8N Bf4 Rb1 a1B Nge3+ Kd2 Rc1 Bb2 Ra1 Ba3 Nb7 Be7 Nbd6 Bd8 Nc8 Rh6 Qa6 Rb6 Nce7 Rb1 Qc6 Rb7 Bh7 Ng5 Bd3 Nge4 Bb1 Kc1 Ba2+ Kb2 Ng2 Kc2 Nge3+
1R4Q1/1N5b/5Q2/4Nkrb/4bP1r/P2p1rqn/b3rrQQ/BR3Q1K b - - 0 1 legal: proof: d4 c5 e4 cxd4 b3 a5 b4 axb4 g3 f5 exf5 Ra6 a3 Ra7 Bc4 Ra8 Ba2 b3 Ke2 bxa2 Kd2 Ra7 Ke1 Ra8 h4 g5 f6 g4 f3 Nc6 f4 Bh6 f5 Bf4 gxf4 Ne5 Nd2 Nf7 Nb1 Ng5 hxg5 Ra6 Rh4 Ra7 Rh1 Ra8 Kf1 Kf7 Kg2 d5 c4 h5 c5 e5 c6 b5 c7 h4 Rh2 h3+ Kh1 e4 Rb2 d3 Rf2 h2 Qa4 g3 Ne2 e3 Nd4 e2 Nc2 e1R+ Kg2 b4 Be3 d2 Ba7 d1B Rf1 h1B+ Kg1 b3 Nb4 g2 Na6 b2 Bd4 Rh3 Qc6 Nh6 Nc5 Bh5 Nd2 b1B Nf3 Ng4 Nb7 Be6 c8Q Nf2 Bb2 Bd3 Rb1 d4 Ba1 Re2 Rb6 Bb3 Rb1 Qg8 Qb5 Rh4 Qc2 Rc8 Qb2 Rc3 g6+ Kf8 g7+ Kf7 Qd2 Nh3+ Kh2 Be4 Qbd3 Rf2 Qf1 d3 Qde2 g1R+ Qg2 Rc4 Qf1 Rcc2 Rb5 Rce2 Ne5+ Ke8 f7+ Ke7 f6+ Ke6 f8Q Bh7 f7 Kf5 Qa8 Rf3 Qgf2 Rg5 f8Q+ Bbf7 Qfd8 Bg2 Qg3 Rff2 Qb6 Be4+ Qgg2 Bc4 Kh1 Rf3 Qh2 Bb3 Bc3 a1R Qh6 Raa2 Ba1 Rab2 Rb6 Ba2 Rb3 Qb8 g8Q Qa7 Qc6 Qf2 Qaa6 Qg3 Qc2 Ree3 Qcg2 Rbf2 Qb6 Ree2 R3b2 Bed5 Qf6+ Ke4 Na5 Bc6 Rb8 Ba8 Qd6 Kf5 Qdd8 B8d5 Nb7 Be4 Qf6+
4R2b/5b2/r4q2/BRnq1rpk/1N4Nb/nQ3N1P/1pN1PQ2/b2N2K1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 exf4 c4 d5 cxd5 f3 Bg2 fxg2 a4 b5 axb5 axb4 Kf2 c5 d4 f5 h6 Kf7 h7 Kg6 b6 c4 d6 b3 d7 c3 h3 c2 b7 f4 d5 f3 d6 Be7 Ra2 Nh6 Qf1 Nf7 Bd2 c1B Nc3 Na6 b8Q Ne5 Nd1 Bb2 Ba5 Rf8 h8N+ Kh5 Ng6 Nc4 Ne5 Rf5 Ng4 Nc5 Qb6 Qg8 d8N Be6 d7 Na3 Nc6 Ba1 d8N Bf7 Nd4 Ra6 Nc2 g5 Qe1 Bef6 Nc6 Bh8 N6b4 Qa8 Qf1 Qd5 Qb7 Nc4 Ra3 b2 Re3 Na3 Re8 Qd6 Qd5 Qe6 Qb3 Qd5 Ke3 f2 Nf3 g1B Qg2 f1Q+ Qf2 Bh2 Rg1 Qc6 Rg3 Qg2 Qe1 Qh1 Kf2 Bg1+ Kf1 Qf6 Qf2 Bh2+ Ng1 Qe4 Re3 Qee6 Re5 Qd5 Nf3 Bg3 Kg1 Bh4 R5e7 Nb5 Rb7 Na3 Rb5
r1kn2r1/pN1P4/rbq4Q/1N1b1RR1/1K2pR2/r3bQ2/P1BR4/5bR1 b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 c5 h4 f5 b4 fxe4 d3 g5 Na3 gxh4 Bb2 c4 Rc1 c3 Rc2 cxb2 Nxb5 b1R Na3 Bb7 b5 Ra1 b6 Nc6 Rxc6 Ba6 Rc2 Bc8 Kd2 Kd7 Kc3 e5 g4 h5 f4 e3 d6 e4 f5 e2 b7 e1B+ Rd2 h3 b8R h4 f6 h2 d4 h3 d5 Qc7+ Nc4 Ne7 g5 Qb6 g6 Qd8 f7 Qe8 g7 Rc1+ Kb4 Rh6 g8R Bf2 Rb5 Bb7 Rg5 Rc3 Ne2 Kc8 Rhg1 h1B Nd4 h2 Na5 Ra3 Qf3 Be3 Bd3 Bg2 Bc2 h1R Rc5+ Bc6 Nb7 Bf1 Nb5 Re6 Rf5 Rh8 Rf4 Bg7 f8Q Bgd4 Qh6 Rg8 Rdg2 Qd7 Rg5 Qc7 Rc3 Bb6 Rc5 Ng6 Rgf5 Nh8 Rfg5 Nf7 d7+ Kb8 d8R+ Qc8 Rf8 Nd8 R8f5 Qc7 Rc4 Kc8 Rd4 Qd7 Nc5 Bb7 Rd3 Qc6 Rd2 Re5 d6 Rd5 Qf2 Ra6 Qe2 Rd3 Qf3 Rda3 Rdg2 Qd7 Rd2 Bd5 Nb7 Qc6 d7+
4b1QQ/KNp5/5q2/B2p2Pq/nq1pr1Bp/rN1RN1P1/3N4/2k1N2b b - - 0 1 legal: proof: c4 b5 cxb5 f6 g4 Na6 d4 Kf7 f4 Nb8 e4 Ke8 a4 g5 b4 Nc6 f5 Bg7 e5 fxe5 Ra2 exd4 Rf2 Na5 Rf4 Nc4 a5 Nb6 axb6 Be5 Re4 Bg3+ hxg3 Bb7 Rf4 gxf4 Rh5 Ba6 Rh1 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 f6 a5 f7 e5 f8N h5 b7 d6 b8Q a4 b6 a3 Kb5 e4 b7 e3 Bh3 e2 Qb3 e1Q Bd2 h4 Ng6 a2 Ne7 a1Q Nf5 Nf6 Ne3 Ne4 Nf3+ Kf6 Kc6 Qa5 b5 Re8 b6 Nc3 Qg8 Qh5 Rg1 Na4 Ba5 d5 Nbd2 Qb1 Rd1 Qb4 Ne1 Ke5 g5 f3 Bg4 Bf5 Qc8 f2 b8N f1B Kb7 Bg2 Na6 Bd7 Nc5 Qf6 Ncb3 Bh1 Qh8 Re6 Qcg8 Ra6 Kb8 Be8 b7 Re7 Ndf1 Ke4 Rd3 Rc6 Ka7 Rc3 b8N Re5 Na1 Ra3 Nc6 Re6 Nd8 Re7 Bd7 Re5 Nb7 Re7 Ne1c2 Kf3 Nb3 Ke2 Nfd2 Re4 Nec4 Kd1 Ne1 Bg2 Bg4+ Bf3 Na1 Kc1 Ne3 Bh1 Nab3+
1N5k/bbp1Nbrp/Nr5P/R4p2/1q5R/1Q4np/NBKQqP2/6N1 b - - 0 1 legal: proof: e4 a5 c4 b5 h4 d5 a4 e5 c5 Nd7 Qh5 Nb6 cxb6 g5 b7 d4 b4 axb4 a5 b3 a6 b2 a7 Qd5 exd5 e4 Na3 e3 dxe3 b1Q Qh6 Qf5 Nb1 Qf6 h5 Qd6 Qf6 Qd8 Qf4 Kd7 Qh4 gxh4 Be2 Ke7 Bg4 Ke8 Bd7+ Ke7 Be8 Kxe8 Kd2 f5 b8N Kf7 g4 Kg7 g5 d3 g6 b4 d6 b3 d7 b2 h6+ Kf6 g7 Bb7 e4 Qe7 d8Q Kf7 e5 Qb4+ Nc3 b1B Ra5 Nf6 g8N Bc5 Ne7 Rg8 Bb2 Ba2 Na6 Rb8 a8N Ba7 Nb6 Rg7 Nd7 Nh5 Kc1 d2+ Kc2 Bad5 Na2 Ng3 Rh2 Bbc6 Rh3 Rb6 Ndb8 Bb7 Qd6 Kf8 e6 Bc4 Qd3 Bcd5 Qb3 Bc4 Nec6 Kg8 e7 Kh8 e8Q+ Bg8 Qee3 Bf7 Kd3 d1Q+ Qd2 Qe1 Ne7 Qe2+ Kc2 Nh5 Re3 h3 Re4 Ng3 Rh4
NNQ1Bk2/2pr4/1B3b1P/1b1qn3/1r2pPB1/B1pR1p2/2pQ1B2/2b3K1 b - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 a5 a4 axb4 Ba3 h5 gxh5 c3 Ra2 b3 Rc2 bxc2 Bb2 Nd7 Bc1 Nb8 Bg2 f5 Na3 g5 Be4 g4 Nh3 g3 Bc6+ Nd7 Bb5 g2 Ng1 f4 Nb1 f3 Bc4 Nb6 e3 Nd5 Bf1 Nf4 exf4 Qd4 Bb2 Qg7 Bc1 Qg3 fxg3 Ra7 Bc4 Ra6 Bf1 Ra8 Kf2 b5 h4 e5 d4 b4 d5 e4 h6 b3 h7 b2 a5 Be6 a6 Bf5 a7 Bd7 g4 Kf7 g5 Nf6 d6 Bc8 d7 Rb8 d8B Rb6 a8B Rb4 g6+ Ke8 h5 Bf5 h6 Bg7 Na3 b1Q Bc6+ Kf8 Qd2 Bh3 Be8 Rb7 Ne2 Nd5 Kg1 Ne7 Nd4 Bc8 Nc4 Ra7 Nb6 Rb7 Ba3 Qe1 Na8 Rb4 Nc6 Ba6 Nb8 Nc6 Bh4 Qe2 Bf2 Qd1 Rh5 Bc4 Rd5 Bf6 Rd3 Bb5 Bb6 Rg8 h8B Rg7 Bf2 Rd7 g7+ Ke7 g8Q Ne5 Qg4 Kf8 Bb6 Rh7 Qc8 Rd7 Kh2 g1B+ Kh1 Be7 Bh3 Bf6 Bg4 Be3+ Kh2 Be7 Bf6 Bd8 Bh4 Bf6 Qf2 Bc1 Qd2 Rd6 Bhf2 Rd7 Qe1 Qd2 Kg1 Qd1 Rd4 Qd3 Qd2 Qc4 Rd6 Qe6 Rd4 Qd5 Rd3
2K1nN1n/P1n2QN1/4Qbq1/3PkB1b/1n1n4/3n1Q2/rQ3Rb1/B1qQr3 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 h5 e4 g5 a4 Bh6 g4 Bf8 Ra3 f6 Rg3 f5 exf5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kf2 Kd7 h4 Kd6 d4 c5 f6 b5 a5 e5 f7 b3 h5 g3+ Kf3 g2 Ke4 c4 g6 b2 h6 c3 h7 b4 a6 b3 g7 c2 Nd2 b1Q Be2 b2 Qe1 f3 Nb3 f2 Rh6+ Qf6 Bd1 f1B Nh3 g1N Bf4 c1N+ Bc2 Nc6 Bh2 Nf3 Bg3 Nd3 Nc5 Ndb4 Nf4 Nh4 Ng6 Qc1 Ne6 Be7 Ngf8 Ng6 Rh2 b1N Rf2 Na3 a7 Nb5 Qe2 Bg2+ Qf3 Nc7 Bf4 Qg5 Be3 Qh6 Kf5 Nf6 g8Q e4 Bb1 Ba6 Ng7 Nfe8 Bg5 e3 Bf6 e2 Bd3 e1N Be4 Nb5 Bb1 Kc7 Ke6 Bb7 Bf5 Ned3 Bg5 Bf6 d6+ Kc8 d7+ Kc7 Bd2 Rb8 Bc3 Bc8 d5 Rb6 Qg4 Ra6 Ba1 Ra2 Qd1 Qhg5 Nh5 Qg4 Qg7 Rg8 h8Q Qgg5 Qhh6 Nh8 Qgg6 Qg4 Ng7 Qh5 Qgg4 Qg6 Qgf3 Ba6 Qhd2 Bc8 Nh5 Rg7 Qb2 Rh7 Ng7 Rh1 Nh7 Rf1 f8Q Ba6 Qf7 Re1+ Qe3 Kb7 d8Q+ Nbc7+ Kd7 Nd4 Qc8+ Kb6 Qbd2 Kc5 Qb2 Bc4 Qee6 Bb3 Qf3 Bd1 Nf8 Kc4 Qca6+ Kc5 Qa4 Be2 Qf4 Bh5 Kc8 Kc4 Qf3 Kc5 Qee2 Kd6 Qed1 Ke5 Qc6 Be7 Qa6 Bf6 Qae6+
Rb1k4/BQ1r4/2R2qbN/bn2rr1P/1r2n2Q/7P/Q1n1b3/QNq3QK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d3 exf4 d4 cxd4 gxh5 a6 b4 Ne7 b6 Ng6 b5 Nc6 b7 Nb8 b6 Ne7 Bg2 Ng8 Bc6 Ba3 Ba4 Bf8 Bb5 axb5 Kf1 d5 Kg2 f5 c4 g5 e4 g4 c5 b4 e5 b3 c6 d3 e6 d4 e7 f3+ Kf2 b2 h3 f4 c7 d2 Qb3 d1R Bd2 d3 Na3 b1N Qb2 Ra5 Rh2 Nc3 Ne2 Nc6 b8Q Re5 b7 Nd4 Nc1 Bf5 c8Q Bg6 Qe6 Ncb5 Rg2 Nc2 Rb1 Nf6 Ba5 d2 Qc4 Rg8 Qf1 g3+ Kg1 f2+ Kh1 f3 Nb3 Ne4 Qg1 f1R Qa7 f2 b8Q Rg7 Ra1 Rb1 Qbd4 d1Q Qbb7 Qc1 Bb6 Qd6 Qa5 Qf6 Ba7 Rf7 Qe1 Bh6 Qdd5 Bd2 Nd4 Ba5 Nf5 Rb4 Qa2 Rg7 Nh6 Rf7 Qe3 Rd1 Qeb6 f1B Q6a6 Rd7 Nb1 Bc4 Rd2 Be2 Rd6 Rf8 Rc6 g2+ Kh2 Bc7 Q6a3 Ba5 Qg3 Rf7 Qh4 Rf8 Qgf2 g1B+ Kh1 Bh2+ Qg1 Rf7 Qa8+ Bd8 Bb8 Rc7 Q8a4 Rc5 Q2b3 Qc3 Ra2 Rff5 Qb2 Bf4 Qa1 Qf6 Ra3 Kd7 e8Q+ Kc8 Qa8 Bd6 Qf7 Rce5 Qfa2 Kd7 Ra4 Ra7 Raa6 Ba5 Qc3 Kd8 Qca1 Rh7 Qb7 Rd7 Ra8 Bdc7 Ba7+ Bb8 Qb3 Rd3 Qba4 Rd7 Q4a2
q6N/n1b2K1b/k1NN2Rr/2qPQ3/nR2b1rN/1n3Q2/P1B1b1nq/5N2 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 h6 g4 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 b5 Kg4 e5 d4 c5 h4 Kc7 d6+ Kb6 h5 c4 g7 f3 d7 f2 d5 b3 f6 b2 Kf5 c3 Kg6 e4 h6 c2 f7 c1Q h7 g4 Nd2 b1B Nb3 b4 Bh3 f1B Qe2 g3 Na5 g2 Qd1 b3 Qe2 b2 Qd1 e3+ Qc2 e2 Rh2 e1N Bg4 Ka6 Nb3 Ne7+ Kf6 Be2 g8N Nf5+ Ne7 Nc6 Rh4 Nfd4 Qe4 Na7 Bf5 Qc5 Nf3 g1Q Nbd2 Qh2 Nf1 Ng2 Qe5 Nb3 Rb4 Be4 Nh4 b1N Kg6 Rb8 Nc6 Bd6 f8Q Nc3 Kf7 Na4 Rd1 Qda5 d8N Bc7 Nb7 Ra8 Bg6 Bcf5 Nd6 Rg8 h8N Rb8 Rd3 Rb6 Bh7 Rg4 Rg3 Qab5 Ne7 Qbc6 Bg6 Qa8 Nc6 B4f3 Bh7 Bb1 Bc2 Be4 Bd1 Bbd3 Bc2 Bh7 Qfg7 Bde4 Qgf6 Rb8 Qf3 Rbg8 Nc4 R8g6 Nd6 Rh6 Qef5 Rf4 Rg6 Rg4 Qe5
1Bn5/1N5P/b1b3Pn/3q1R1K/2Qb2B1/nbB3Q1/1r1n2rR/kB1Bbb2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 e5 Qd3 exf4 Qxh7 g5 Nc3 b5 Nd5 f3 Nf4 gxf4 axb5 Be7 Ra4 Bd6 Ra1 Bf8 Kf2 Ke7 b4 Ke6 g4 Ke5 c4 d5 e4 a5 h4 f5 g5 d3 g6 Kd4 h5 Kc3 b6 d2 b5 d1B b7 a4 e5 a3 e6 a2 c5 d4 b6 d3 h6 d2 e7 Nd7 b8Q Ba4 e8B d1B c6 Bb4 b7 Nb6 c7 Qd5 Bd2+ Kb2 Bg2 Bc6 Ne2 Bb3 Rag1 a1B Re1 Ra2 Qg7+ Bc3 h7 Nh6 Rh2 Rg8 Kf1 f2 Nd4 Ba5 Ke2 f1N Bd7 Ne3 Qf7 Nc2 Bf3 Na3 Rf1 Rg7 Bh5 f3+ Kf2 f4 Bdg4 Rg8 Nb5 Re8 Nd6 Re2+ Kg1 Bc3 Bf5 Bb4 Bb1 Rg2+ Kh1 f2 Bd1 f3 Bc3+ Kc1 Qe6 Rb2 Qe4 Ba5 Qc4 Bb4 Re1 f1N Re5 f2 Rf5 Be6 c8B Nd2 Qc7 f1B b8B Bf7 Be6 Nc8 Nb7 Bfe8 Bd7 Bb5 Qg3 Ba6 Rf6 Ba5 B7g4 Bc6 Rf5 Rc2 Bb4 Bd4 Bc3 Rb2 Rhh5 Rg1+ Kh2 Rg2+ Kh3 Bb4 Kh4 Ba5 Kg5 Bb4 Rh2 Ba5 Be4 Bb4 Bef3 Kb1 Be4+ Ka1 Bb1 Bd6 Qe1 Bg3 Kh5 Bgf2 Qe5 Be1 Qg3
Nr6/K1Rb4/4P1Q1/3B1bqb/nP3n1n/2k2qbb/3Rq2R/2nRRN1Q b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 a5 Bg2 h6 Bf1 Ra6 Ke1 Rf6 Bg5 hxg5 Ra4 f4 Ra1 Rf5 gxf5 Qf6 Qc1 Qe7 Qd1 Qd8 Kf2 Ke7 c4 Kf6 h4 Ke5 b4 d5 e4 a4 f6 d3 c5 Kd4 c6 g4 h5 g5 e5 g3+ Ke1 a3 Kd2 a2 b6 g2 b7 f2 e6 g4 h6 f3 c7 g3 h7 Bd6 f7 Nh6 f8Q Qf6 Qc1 Nd7 b8R Nb6 Qg7 Na4 Qc2 Bd7 c8R Nf5 Rg8 Nh4 Nh3 g1Q Qd1 g2 Rbc8 Bg3 Be2 f1B Qb3 f2 Qg6 Qf3 Rgd8 Rg8 h8R Rf8 Kc1 d2+ Kc2 d1B+ Kd2 Bc2 Rc7 Re8 Nf4 Bf5 Bc4 Be2 Qd1 f1B Na3 Rf8 Nh5 Re8 Rc1 a1N Ba2 Rg8 Nc4 Rf8 Nb6 Rg8 Ra8 Rb8 Qe1 Bd1 Ra6 Bde2 Na8 Bd1 Rd6 Bde2 R1c2 Bd1 Kc1 Nb3+ Kb1 Nc1 Rh2 Bh3 Rd2+ Bd3+ Ka1 Qge3 Qh1 g1N Rhe2 Qef4 Re1 Qg5 Bc4 Kc3 Rh7 d4 Bd5+ Bc4 Rh8 d3 Rh6 Be5 Ng3 Nge2 Nf1 Bg3 Rh8 Nf4 Kb1 Nb3 Ka2 Nc1+ Ka3 Bc2 Rh2 d2 Rd8 Bc8 R6d7 d1Q Rd6 Bcf5 R6d7 Nc5 Rd6 Qde2 R6d7 N5b3 Ka4 Nc5+ Ka5 Bb5 Rd6 Bb7 Kb6 Bd7 Ka7 Bbc6 Bc4 Na4 Rdd1 Be8 R8d2 Bcd7 Qh7 Bh5 Qg6 Qed3 Bd5+ Qc4 Rb7 Qce2 Rc7+
1K3bQ1/2n3rR/Rb3bnq/BP1RQ3/1q1N2R1/7q/q3npP1/2R1N1kr b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 f5 f4 b5 axb5 g6 h3 Bb7 Bc4 Bc6 Be6 fxe4 f5 Bd5 f6 Bc4 Bg4 Be2 Bf5 Bg4 hxg4 gxf5 Kf2 Kf7 Kg3 Ke6 Kf4 Kd5 b4 e5+ Kg3 h5 c3 a5 b6 h4+ Kh3 d3 b7 d2 c4+ Kd4 c5 Ke3 g5 Kf2 b5 d5 f7 a4 c6 e3 c7 e4 c8Q d4 g6 e2 g7 e1B Qc3 f4 Kg4 e3 Kf5 d3 Ke6 f3 Qa3 h3 Qc5 h2 Qg5 a3 Qd5 e2 Qd7 a2 Qe7 Ra7 Qa4 d1Q Qe8 d2 Qf4 Qf6+ Kd5 Na6 b8R Qa4 Rd8 d1N Bd2 Qh6 Ba5 Ne7+ Ke5 Bd2 g8R e1Q+ Ne2 Nc3 Na3 Be3 Nc2 Nc7 Rg4 Bb6 Rc1 a1B Rd5 Qa2 Qa8 Qd2 Ned4 Ne2 Ne1 Qb4 Qg5 Rh7 Qg8 Rg7 Qc6 Ra6 Qc5 Qh3 Kd6 Ng6+ Kc6 Ra8 Kb7 Re8 Rg1 h1Q Qe7 Qh6 Qe5 Q1h3 Rh1 Re7 Rh2 Kg1 Kc8 f2 Kb8 Qf3 Rh5 Qh3 Rhh4 Q6e3 Rh7 Qeh6 Qf4 Re5 Qe4 Rh5 Qe5 Bfc5 f8R Rh4 Rf6 Bf8 Qe8 Bb2 Nc6 Be5 Nd4 Rh5 Rfc6 Bf6 Qe5 Qhc3 Qg3 Bbc5 Rb1 Rh1 Qe5 Qch3 Ra6 Bb6 Rc1
Nnn1n1b1/3k1N1B/1R2N1Nq/1r1r1rRQ/3n4/2bpb3/KP2Q1P1/1r1N4 b - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 g5 h4 gxh4 d3 Kf7 Bd2 Ke8 d4 cxd4 Bc3 dxc3 axb5 Ba6 Qb3 Bb7 Qd1 Bc8 f4 d5 f6 e5 f7+ Kd7 c5 a5 f5 h5 b6 d4 f6 a4 b7 e4 Bd3 c2 Kd2 c1R Bf1 a3 Qe1 d3 Rh3 a2 Re3 h3 Qf2 h2 Be2 h1N Bd1 h4 Nc3 h3 Qe1 h2 Bh5 Bh6 Nf3 Ne7 Nd1 Rb1 Kc3 Nf2 Kb3 h1R Qe2 Ra5 Ng5 Qf8 Rg3 e3 Bg6 Ne4 Bh7 Nd6 Rg4 Ne8 c6+ Kc7 Rb4 Rf1 Rb6 Rff5 Qh5 Kd8 c7+ Kd7 Qe2 Rad5 Ka3 Nbc6 b8Q Qg7 Qa7 Nb8 Qa5 Ba6 c8N Bc4 Qf1 e2 f8N+ Kd8 f7 e1B Nfe6+ Kd7 Qe2 Bc3 Qb4 Bb3 Qbg4 Rb5 Qh5 Rg8 Nd6 Nc8 Nc7 Rbd5 Nge6 Be3 Na8 Qh6 Qh4 Rgg5 f8N+ Ke7 Ng6+ Kd7 Qhh5 Rb5 Nd4 Bg8 Nf7 Rfd5 Ne6 Rgf5 Nf2 Rd1 Rc1 a1N Ka2 Nb3 Rc2 Rb1 Nd1 Nd4 Rc1 Ba5 Rc4 Bc3 Rb4 Ndc6 Rg4 Nd4 Rg5
2rQ2b1/BK1Q2rR/2r5/2Q5/Q2Prb2/1B1p2N1/2RqPn1q/1krrb1Q1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 h4 b5 a4 e5 axb5 g5 Na3 gxh4 Nc2 Nd7 d4 e4 Nb4 Ne5 Nd3 exd3 fxe5 Qd5 Bf4 Qd7 Bc1 Qd8 Kd2 Kd7 Ke3 Ke6 Ke4 c5 g4 h5 b4 a5 g5 f5+ Kf3 Kd5 g6 f4 g7 a4 e6 a3 e7 c3 e8Q Kc4 Ke4 a2 b6 h3 b5 c2 b7 Kc3 b8Q h4 b6 f3 b7 f2 Qc7 h2 b8Q c4 Qba7 h3 Qg3 Nf6+ Ke5 Be6 g8Q Ng4+ Ke4 Qg5 Qb7 Rh4 Be3 c1B Rb1 a1R Qed7 R1a7 Qd8 Rc8 Qgc7 Bb4 Qg6 Bg8 Bg2 f1R Rb2 Rf6 Bf4 Qh6 Qc5 Nf2+ Ke5 Rfa6 Qbc6 Rg7 Bd5 Rg4 Bg3 Re4+ Kd6 Bg5 Nf3 Bd2 Rg1 h1R Nh4 h2 Qa4 Rb6 Rg2 Rd1 Nf5 h1Q Rh2 Bg5 Rh5 Qh2 Bf7 Be3 Rd2 Qg5 Rh7 Qf4+ Kd7 Qfh6 Q6d5 Rbc6 Bb8 Qg5 Ra2 Bd2 Ba7 Qgh6 Ra3+ Kb2 Qg1 c3 Ng3 c2 Rc3 c1R Rc2+ Kb1 Qdd6 Be1 Q6e7 Ba5 Bb3 Bc7 Qf7 Qd2 Qfe7 Rb8 Qf7 Bf4 Qfe7 Rd6+ Kc7 Rc8+ Kb7 Rdc6 Qed7
nQ4r1/r3r2B/3bNrr1/B3N3/prP1K3/1R5r/P2B1b1Q/k1B2bBn b - - 0 1 legal: proof: b3 c5 Ba3 d5 Bc1 c4 bxc4 d4 f4 e5 g4 exf4 c3 dxc3 Nh3 f5 Rg1 h5 Na3 f3 Rh1 f4 Ng1 Qg5 Rb1 Qf5 gxf5 Bd7 Rb6 Bc8 Rg6 Be7 Rg5 Bf8 Rg4 hxg4 Kf2 Kd7 h4 Kc6 e4 Kc5 d4+ Kb4 f6 b5 f7 g5 d5 a5 h5 g3+ Ke1 g2 Kf2 c2 h6 Kc3 d6 a4 e5 b4 h7 b3 e6 b2 d7 b1R d8B g4 e7 g3+ Ke1 f2+ Ke2 f3+ Ke3 Ra7 e8Q Na6 Rh4 Nc7 Kf4 Rb4 Rh5 Bd6+ Ke3 Na8 f8B Nf6 Rf5 Ne4 Ba5 Rg8 Rf4 Bh3 Bd3 f1R Rf6 f2 h8B Re1+ Qe2 f1R Qc8 Nf2 Nf3 g1B Ne5 g2 Bh6 Nh1+ Ke4 Bf2 Qb8 g1R Rf3 R1g6 Bcd2+ Kb2 Nb5 c1R Nd4 Ka1 Ne6 Rc3 Re3 Bg1 Qh2 Rff6 B8g7 Bf2 Bf8 Bc7 Bc5 Bd6 Bcb6 Bf1 Bc2 Reb1 Rg3 Ra3 Rb3 Rd1 Bc1 Rd3 Bhd2 Rh3 Bd3 Rhh7 Bb1 Rhe7 Bc2 Bg3 Bg1 Bf2 Rb2 Rh3 Rb3 Rgg3 Kd5 R3g4 Bh7 R4g6 Ke4
1Rr2r2/R2r1qRn/4nnp1/nR2N1Q1/B5qR/2PQN3/k2bPK2/r5n1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Bb7 Ke1 Be4 Bg5 f4 Ra1 Bf5 gxf5 hxg5 h4 Kf7 b4 a5 f6 Ke6 c3 Kd5 f7 Kc4 h5 d5 h6 a4 b6 g6 h7 g4 b7 d3 b5 g3 b6 a3 Ra2 f2+ Kd2 g2 Qc2 f3 Ke3 d4+ Kd2 Qh4 Rh2 Nd7 b8Q Nc5 b7 Bh6+ Qf4 Rc8 f8R Ne6 b8R Qg4 Qc1 Nf6 Kd1 d2 Rd8 Rf8 h8R Nh7 Rab2 a2 Qg3 a1N Qd6 Nb3 Rh4 Na5 R2b5 Bf4 Nh3 g1N Bg2 f1N Rd7 f2 Ng5 Ng3 Rg8 Ne4 Rgg7 Nef6 Nf3 Bh6 Ra7 f1Q+ Ne1 Qff3 Nc2 Qb7 Bc6 Qf7 Nb4 Kb3 Nc2+ Ka2 Nba3 Bf4 Nc4 Bg5 N2e3 Bf4 Kc2 d1R Ne5 Bh6 Qd2 Ra1 Qc1 d3+ Kd2 Bg5 Ke1 d2+ Kf2 d1R Qd8 Rd7 Qd1 Bf4 Qd3 Nh5 Qg5 N5f6 Nd1 Bd2 Ne3 Re1 Rc5 Rc1 Ba4 Ra1 Rcb5
4n2B/5P2/BB1Brq1q/3qk2r/1Rrbq3/3pQr2/1P4K1/1NrQ1NnB b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 g4 fxe4 f5 b5 axb5 Bb7 f6 Bd5 Ra3 Be6 Rg3 Bf5 gxf5 Qc7 Rg2 Qd8 Rg4 hxg4 Kf2 Kf7 h4 d5 c4 g5 h5 e5 c5 a5 b6 d3 b7 d4 c6 g3+ Kg2 e3 c7 e4 c8B g4 h6 e2 h7 e1Q Rh2 a4 Nd2 e3 Bd7 e2 Nc4 d2 Rh4 a3 Qa4 d1Q Bd2 a2 Qa3 a1R Ba5 Rc1 Kh1 g2+ Kh2 g3+ Kh3 Nc6 b8Q Bg7 Rf4 Ne5 Qc7 Nf3 Qb7 Rc8 Ne3 R8c4 Qa1 d3 Rg4 Qb3 Qa7 Qb7 Re4 Qd5 Bb6 Qd2 Rd4 e1R Ne2 g1R Bg2 Rgf1 Bh1 g2 Nc3 g1Q Nb1 Qg6 Bc8+ Qe7 Bb7 Qee4 Q1a4 Qc3 Qd1 Qh6+ Kg3 Ng1 Ba6+ Qe7 Rf4 Rf3+ Kg2 Qcd4 Nf1 Re6 Rh4 Q4e4 Rg4 Kf8 f7 Nf6 Rh4 Ne8 Rf4 Bf6 Rh4 Kg7 f8B+ Kf7 Rg4 Bc3 f6 Bd4 Rh4 Kg6 f7 Qf6 Bd6 Kf5 Rg4 Rg8 h8B Rg5 Qc7 Rh5 Qc5 Be5 Qf2 Bd4 Qe3 R4c2+ Qdd2 Qee5 Bb7 Bc5 Rd4 Qee4 Ra4 Bd4 Ba6 Rc3 Rb4 Rc4 Be7 Ke5 Qd1 Rhf5 Bec5 Rh5 Bd6+
nQk2nb1/5p2/Kb3PR1/2Bn4/1b1qQ2q/P1n2qN1/Q2NR3/bQb3Q1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 d5 b5 d3 b6 d4 Qg4 axb6 Qe2 b5 Qd1 b4 h4 b5 g4 Ra7 h5 Ba6 g5 Rb7 Bh3 Rd7 Bf5 Rd5 Bg6 hxg6 exd5 Rh6 gxh6 Bc8 Kd2 Kd7 f4 e5 c4 e4 f5 e3+ Ke1 b3 c5 g5 h7 e2 Kd2 b2 h8Q b4 a3 g4 h6 g5 h7 g3 d6 g2 Rh5 b3 Rh4 g4 Ra2 g3 Nh3 g1B Nf2 g2 Rf4 Ne7 Qg7 Na6 h8Q Nc7 Ng4 Be3+ Ke1 g1B Rf3 Ng6 Rg3 Na8 Qh2 Qh4 c6+ Kd8 d7 Bb4+ Bd2 Nf8 f6 Kc7 d8Q+ Kb8 Qe7 Bf5 Qc1 Bh7 Qg2 Bg8 Qee4 Bf4 Bc3 Be5 Kd2 e1B+ Kd1 d2 Ke2 d1N Kd3 Bd2 Kc4 d3 Kb5 Ne3 Nh6 Nd5 c7+ Kb7 Qg5 Bb6 Nf5 Bdf4 Qf2 d2 Bd4 d1Q Bc5 Qf3 Qcc2 Bc1 c8Q+ Ka7 Qd8 Kb7 Qge3 Bd4 Rg6 Be5 Qd6 Kc8 Ng3 Bec3 Ka6 Bd4 Nc3 b1Q Qed2 b2 Qg1 Qa1 Qb8+ Kd7 Qb3 b1N Qdd3 Be5 Re2 Qb2 Qa2 Qd2 Nd1 Ba1 Nb2 Nc3 Nc4 Qd1 Qdb1 Qd4 Qbf4 Kd8 Nd2 Kc8 Qb8+
2B1b3/q1R1r1Q1/nk1q4/Rr2b1nr/nRPRN3/1P5N/K1pq1Q1p/2R5 b - - 0 1 legal: proof: h4 g5 e4 gxh4 Rh2 b5 Rh1 f5 exf5 b4 Bd3 b3 axb3 Nf6 Bf1 Ng8 Bb5 c5 Bf1 c4 Na3 d5 Nb1 c3 Rh2 cxb2 Rh3 Bb7 Rh1 Bc8 c4 d4 d3 Nh6 Bd2 Ng8 Bc3 dxc3 g4 Kd7 f4 Kc7 f6 h5 f5 a5 d4 e5 g5 e4 g6 c2 Kd2 h3 Kc3 h4 f7 e3 g7 e2 d5 e1R f6 a4 d6+ Kb6 d7 a3 Nd2 b1N+ Kd3 a2 Ne4 h2 Qd2 h3 Nd6 Na6 Ne4 Bd6 f8Q Nc3 f7 Nf6 g8R Nh7 Rg7 Be5 Qf2+ Re3+ Kd2 Na4 Kc1 Ng5 Qe7 Rh5 f8R Qc7 d8R Rb8 Rd4 Bd7 Rfg8 Rb7 Rb8 Be8 Qef6+ Qc6 Rc7 Qd6 Qg7 Re2 Bg2 Re3 Bf3 Re2 Bg4 Re3 Rb1 a1Q Bc8 Qc3 Ra1 Qcb4 Ne2 Qc3 Re1 h1Q Ng1 h2 Nh3 Qg1 Ra3 Rf3 Ra2 Rf7 Red1 Re7 Rf1 N4c5 Ra5 Qd2+ Kb2 Na4+ Ka2 Qg4 Rc1 Qgd7 Ra8 Rb8 Rcc5 Qa7 Rcb5+ Kc6 Rb4 Rb5 Rb8 Kc7 Rb7+ Kc6 Rd7 Kb6 Rc7
r1N1r2Q/QPB4n/bK4Q1/2n1Br1N/Q1R3nr/2b1r3/p1P1p1q1/2kQ4 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 f4 h6 b4 Nc6 g4 Nb8 f5 Bb7 Be2 Ba6 Ra3 Bc8 Rf3 h5 Rf4 gxf4 g5 Qc7 Bf3 Qd8 Bg4 hxg4 Ke2 Kf7 Kd3 d5 h4 a5 b6 e5 b7 g3 b5 f3 h5 e4+ Kd2 d3 Kc3 g2 Kd4 e3 h6 a4 b6 d2 h7 a3 Qe1 d1N Qd2 a2 Rh6 f2 Na3 f1R Nc4 e2 Rh4 Nd7 b8Q Bg7 Nh3 g1R Qa7 Ne3 Qd1 Ba6 b7 Rg4+ Nf4 Nc5 Bb2 Rg3 Bc3 Ng4 Nh5 Re3 Nb6 Qd6 Ba1 Qh2 Nc8 Qg2 Bc3 Re8 Ba5 Rf3 Bc7 Rfe3 Be5 Kf8 f7 N8f6 Nb6 Ke7 f8B+ Kf7 Bfd6 Rhf8 h8Q Nh7 f6 Kg6 f7 Kf5 g6 Kg5 Bc7 Bf6 Qd3 Bg7 Kc3 d4+ Kb4 Bf6 Qe4 d3 Ka5 d2 g7 d1R Qa4 Rd4 g8Q+ Kf5 Qgg7 Ke4 Nc8 Kf3 Kb6 Rf4 Bb2 Bc3 Qg6 Rf5 Qhd4 Rh8 f8Q Kf2 Qdd6 Ke1 Ba1 Bb4 Bd4 Kd2 Be5+ Kc1 Qd8 Bc3 Qfg7 Ngf6 Rc4 Ng4 Qg8 Ng5 Qd3 Rh6 Qh8 Nh7 Ng7 Rh2 Nh5 Rh4 Qd1+
1bqn2K1/2rr1r2/Q2Pbbp1/NR2N3/Qp4N1/2rR1P2/2n1B1k1/2N1n1N1 b - - 0 1 legal: proof: b4 d5 a4 a5 g4 h5 e4 hxg4 c4 axb4 cxd5 f5 Ba3 bxa3 exf5 Rh6 Qe2 Rh7 Qd1 Rh8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 b5 d6 c5 f6 g6 d5 c4 a5 c3 f3 c2 a6 c1R f7 b4 a7 a2 d7 g3 Ke6 g2 Nc3 Nh6 Qa4 Nc6 Nce2 Rc3 Rd1 a1B Rd3 Rh7 Nc1 Ng4 Be2 Ne3 h3 Kg3 h4 Qe8 h5 Nc2 h6 Bb2 Rh5 Nd8+ Ke5 e6 Kf6 Bd6 f8N Bb8 d6 e5 Rf5 e4 Rb5 Re7 h7 e3 h8N Kf2 Nh7 Rf7+ Kg5 Rc7 Nf6 Kg3 Ng4 Bf6+ Kh6 Rc3 Nh3 g1R Qa6 Rd1 Ng1 Kg2 Qa4 Bb7 Qa6 Bd5 Qa4 Be6 Qa6 Nc6 d8N Qd7 Nb7 Nd8 Qa4 Qc8 Na5 Rd7 Nf7 Rcc7 Rdd5 Rd3 Kh7 Ra3 Rd3 Rac3 Bd1 e2 Kg8 e1N Be2 Re7 Kf8 Rcd7 Nfe5 Rf7+ Kg8 Bc7 Qa2 Rb8 a8Q Rb7 Qa3 Bb8 Qa4 Rbc7 Qa6
nR3N2/b4p1p/7K/1B1P1Nr1/N2bbQ2/2r1nBP1/1bkb1qN1/N3q1Q1 b - - 0 1 legal: proof: b4 b5 f4 c5 c4 g5 a4 e5 fxe5 Bh6 h4 Bg7 hxg5 Bf8 Ba3 bxa4 b5 d6 Bb4 Bh6 Ra3 Bg7 Rc3 cxb4 c5 Bh6 c6 Bf8 Rc5 dxc5 Kf2 Ke7 Kg3 Ke6 Kh4 Kf5 Kh5 Ke4 d4 a5 d5 c4 g6 b3 e6 c3 g7 b2 e7 c2 e8B c1B c7 a3 g3 a4 b6 a2 b7 a1B Bb5 a3 Nd2+ Ke3 Ngf3 b1Q Nh4 a2 Ng2+ Kd4 e4 Kc3 e5 Qf6 e6 Bab2 e7 a1B e8Q Qf2 Nb3 Bc5 Qe4 Bd2 Bfe2 Ne7 g8N Na6 b8N Nf5 Qg1 Qbe1 Qf4 Kc2 Ne7 Ne3 Kh6 Ba7 Nd7 Rg8 Bf3 Rg5 Nf8 Bf5 c8N Nc7 Nb6 Be4 Na4 Rc8 Nf5 Na8 Rh4 Rc3 Rg4 Rg8 Rg6 Rg7 Rb6 Rg5 Rb8 Rc7 Qh4 Bbd4 Qg4 Rc3 Qf4 Bb2 Na1+
nb4N1/Bp1Prqb1/1PNn1r2/QRp4r/8/2qN2rQ/7r/1NRKN1k1 b - - 0 1 legal: proof: g4 c5 d4 e5 f4 exf4 b4 d5 c4 h5 cxd5 hxg4 b5 a6 d6 Qd7 b6 Ra7 d5 Qd8 Bg2 Bd7 Be4 Bc6 dxc6 Ra8 Bd3 Nd7 Bc4 Nb8 Bb5 axb5 a4 g5 h4 f5 e4 Kf7 e5 Kg6 a5 Kh5 d7 f3 e6 b4 c7 f2+ Ke2 f1Q+ Kd2 b3 c8N f4 a6 b2 a7 f3 e7 g3 e8Q+ Kg4 h5 g2 h6 Kg3 h7 Kf2 Nc3 b1R Ra6 g4 Qa4 g3 Qe5 Nf6 Qf5 Bg7 Qa3 Ne8 Qh3 Nd6 Ra5 Na6 Ne7 Nc7 Nc6 Qf6 Rb5 Rae8 a8N Re7 Qa5 Qc4 Kc2 Rb2+ Kd1 Qff7 Nb1 Qc3 Bf4 Kf1 Be5 f2 Bf4 Rb4 Be5 Rh4 Bf4 Rh5 Be5 Rb8 h8N Rbe8 Ng6 Reh8 Nf4 R8h7 Qg4 R7h6 Nf3+ g1B Qh4 g2 Nd3 Rh7 Nfe1 Rh8 Rh3 Bh2 Re3 g1R Qh3+ Rg2 Re2 Kg1 Rc2 f1R Rc1 Rg3 Bf4 Nd5 Nc7 Rf2 Ne8 Nc7 Nf6 Na8 Ng8 Rff3 Bd2 Rf6 Bf4 Ne8 Qa2 Rh4 Ra5 Rgg6 Qf3 R8h5 Bb8 Bg3 Qf5 Rh2 Ba7 Bb8 Qh3 Nd6 Rb5 Rg3 Qa5
r1n2R2/3q1b1B/rQQ3q1/2K1nQ2/2pB1b2/pR1r2Q1/1QqPk1PN/4q3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 Na3 gxh4 Nc4 exf4 e4 Ba3 Ne3 fxe3 Ke2 Bd6 Ke1 Bf8 Ke2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 a5 d6 c5 b6 f5 b5 h5 b7 h3 b6 a4 d7 a3 Be2 h2 Qb3 f4 Qc2 h4 Qa2 h3 Kb5 Kd4 e5 f3 e6 c4 e7 f2 e8Q f1R Qe7 Nc6 b8Q Ra6 b7 Bh6 Qb3 Bf4 Ra2 Rf3 Qc2 Ne5 Qf6 Ne7 Bd3 e2 Bh7 e1Q Qcf5 Rd3 Qc6 Qg8 Ra1 Qg6 d8Q+ Bd7 Qa5 Be8 Rb1 Bf7 Rb3 Nc8 Qbc7 Qd1 b8Q Qc2 Bb2+ Rc3 Qff6 Kd3 Nf3 Ke2 Q7b6 Rd3 Rf1 h1Q Kc5 h2 Bd4 Qg1 Qbd6 h1Q Nh2 Qe3 Qf5 Qh3 Qc3 Re8 Rf3 Qe1 Qb2 Qhg4 Qg5 Q4f5 Qg3 Qd7 Qf6 Nd6 Rf1 Rea8 Qf5 Nc8 Qfh3 Be3 Rf6 Bf4 Qf5 Bg8 Rf8 Bd5 Nf1 Bf7 Nh2
b1r5/3rq2Q/1Rn1N2K/2R3pb/3Q1bR1/5bpP/RPqRk1N1/B5qn b - - 0 1 illegal: Other
6B1/Rr1Rk1nn/BPQ2b2/2N1BqPQ/n6K/1br1p2p/1B4Br/6qn b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 fxe4 b5 b6 Nc3 Bb7 Na2 Ba6 Nb4 axb4 a5 Bb7 axb6 Bc8 g4 h5 f4 d5 Kf2 e5 Kg3 e3 c4 d3 c5 b3 f5 d2 g6 h4+ Kh3 e4 g7 b2 f6 b1R c6 d4 f7+ Ke7 b7 d3 c7 e2 Bg2 e1Q Qc2 d1N Ra2 e3 Bc6 d2 Qf5 Qd3 g5 Be6 c8B Nh6 g8B Bb3 Bb2 Bg7 Qg4 Bf6 Qe2 Nd7 b8B Nf5 Nf3 Ra3 B8e5 Ng7 Ba6 Nf8 Nd4 Nh7 Qh5 Qg1 Bg2 Nc3 Ne6 d1N Nc5 Na4 Kg4 h3 b6 Qf5+ Kh4 Nf2 Ra1 Rc1 Rh2 Rc3 Rd1 Ra2 Rd8 Rd3 Ra8 Rd7 Ra7 Rb7 Rh1 Qc1 Rd1 Nh1 Rd2 Qcf1 Nd3 Qg1 f8Q+ Kd7 Qa8 Ke7 Be6 Rb8 Bg8 Rc8 Rd1 Rc3 Nc5 Rd7 Qc6 Rb7 Ba3 Rac2 Bb2 Re2 B2d5 Rh2 Bg2 Qf3 Rd2 Qf5 Rd7+
1nn3RQ/2bqq3/1pnrQ1QP/2Rb2pN/Q2qQ1rk/2nPN3/2KB4/8 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 gxf4 g4 Nf6 g5 Ng8 g6 Ra5 Bg2 Ra7 Bf1 Ra8 g7 Be6 Be2 Bc8 Bh5+ Kd7 Bg6 hxg6 Qb3 Ke8 Qc2 Ra6 Qd1 Ra8 h4 Kf7 a4 Kf6 a5 c5 d3 e5 Kd2 b3 a6 f3 d6 b2 a7 e4 d7 b6 h5 Kg5 f6 f2 h6 f1Q f7 c4 Nc3 b1N+ Kc2+ e3 Nd5 c3 Bb2 e2 Nf4 e1Q Rh4 Qh3 Ra2 Ne7 g8Q Bb7 Nge2 Nc8 Ra5+ Bd5 Nd4 Bd6 f8Q Bc7 Qe8 Qee7 Qe6 Rg8 Rc5 Qe3 Nf5 Qd4 Nh5 Rg7 Kc1 c2 Ne3 Nc3 Rh1 Rg8 Rg1+ Kh4 Kd2 c1N Kc2 Nb3 Bc1 Rg7 Bd2 Na5 Q8g8 Qde8 d8Q Nac6 Qh8 Qd7 Qde8 Rg8 Qa1 Rg7 Qa4 Rg8 Rf1 g5 Rf8 Rg6 Rg8 Rf6 Qg6 Rf4 Nf6 Rg4 Nh5 Be4 Ng7 Na5 Ne8 Nd6 Qgf5 Qdd8 Qed7 Na6 Qac6 Bd5 Qe4 Qc8 Qdf5 Qce6 Nf6 Rd8 a8Q Nb8 Qg6 Nc8 Qd6 Nac6 Nh5 Qf5 Qde5 Rd6 Qa4 Qfd7 Qee6
1Q1q1rrr/Q1p3nk/2B1B1b1/3nn1P1/KBqRbn2/3P1N2/3p2B1/1B1R4 b - - 0 1 legal: proof: c4 a5 b4 axb4 h4 g5 Qc2 gxh4 Qa4 e5 Qd1 d5 cxd5 e4 f4 e3 d3 Qd6 Nd2 exd2+ Kf2 Ra5 e4 Nf6 e5 Bg7 Ke2 Ng8 e6 Be5 fxe5 Qd8 Ke3 Ra7 Ke2 Ra8 g4 Kf8 a4 Kg7 a5 h5 g5 f5 e7 b5 e8B h3 d6 f4 e6 b3 d7 b2 e7 b1N a6 b4 a7 f3+ Ke3 h2 Kd4 h4 Kc5 h3 Kb5 b3 Bg2 b2 Qb3 f2 Qe6 f1R Nf3 Kh7 Nd4 Nh6 Ra3 Rff8 Qb6 Nc6 Bd5 Ne5 Bef7 Nf5 e8B Ng7 Rd1 h1N Ra4 h2 Ba2 Ng3 Nf3 h1B Bfe6 Ne2 Rd4 Nf4 Ka4 Bb7 Qa5 Be4 Qc5 Rb8 a8B Bg6 Qa7 Rhg8 Bc6 Ra8 B8f7 Rc8 Bed5 Ra8 Bfe6 Nc3+ Kb4 Rc8 Bb1 Bg2 Be4 Ncd5+ Ka4 Rb8 B4f5 Bh1 Bh3 Rc8 Bg2 Ra8 Ba2 b1Q Ba3 Qc1 Bb1 Qc4+ Bb4 Qf6 d8Q Rb8 Qc8 Qd8 Bgh3 Bg2 Ng1 B2e4 Bg2 Qe7 Qcb7 Rbe8 Qb5 Qd8 Nf3 Rh8 Qbb7 Rfg8 Qab8 Ref8 Q7a7
1N5b/1Np1NN1k/3q2pQ/1nQB4/BK2R1q1/PP6/4b1qr/qN1n1b1r b - - 0 1 legal: proof: f4 d5 g4 e5 c4 exf4 cxd5 h5 gxh5 b6 d3 a5 b3 a4 Bb2 a3 Nc3 axb2 Rc1 Rh6 Na4 Rh7 Rc5 bxc5 Nc3 Rh8 Kd2 b1B e4 f5 h4 Kf7 e5 f3 e6+ Kf6 d4 c4 d6 f2 d7 f4 d5 f3 h6 Kg6 e7 Be4 e8B+ Kh7 h5 g6 a3 Qf6 d8N Bh3 d6 Bd3 d7 Ne7 Nge2 Nbc6 Nb7 Qd6 d8N Nd4 Ng3 Bg7 Qc2 Nb5 Nf5 Nd5 Bg2 f1Q Nc6 f2 Nb1 Be2 Nb8 Ndc3+ Bd5 Nd1 Ne7 Qg2 Re1 f1Q Qc1 c3+ Kc2 Na7 Ba4 Qff4 Qe3 Nb5 Qc5 Beg4+ Kd3 c2 Re4 Bd4 Kc4 c1Q+ Kb4 Be2 Re5 Qfg4 Re4 Rf8 Re3 Rf1 Re4 Kh8 h7 Rh1 Be6 Kg7 h8N Kh7 Nf7 Bh8 h6 Qb2 Bd5 Qa1 Nd7 Rf8 Nb8 Rh2 Ne5 Rf1 Nf7 Rfh1 Nc8 Kg8 h7+ Kg7 Ne7 Q2f3 Na6 Bhf1 Nb8 Qfg2 Ne5 Kh6 N5c6 Bd4 h8Q+ Kg5 Qh3 Bh8 Ncd8 Kf6 Qe3 Kg7 Nf7 Kh7 Qh6+
3Q2rR/1pq2NR1/1QqPnQQ1/1nq2b2/2q1pN2/4B2P/4QK2/rkn4b b - - 0 1 legal: proof: c4 a5 f4 f5 e4 h5 b4 axb4 Be2 e6 Bg4 d5 cxd5 fxe4 f5 Bd6 g3 Bf4 gxf4 hxg4 d4 Kd7 a4 Kd6 f6 c5 a5 g5 h3 c4 a6 e3 f5 g3 f7 b3 f8Q+ Ne7 f6 b2 a7 c3 f7 g2 Qh5 c2 Ne2 g4 Qe8 g3 f8Q g1Q+ Qf1 g2 Qa4 e5 Qae8 Na6 Ng3 e2 Qh7 Bf5 Ra5 Rg8 Bg5 c1N Nd2 b1B Qef7 Qc7 Nf3 Nc8 Be3 Bbe4 Nh5 Nc5 Ng5 Ne6 Nf4 Qc6 Qf6 Qh2 Qhg6 g1Q Ra4 Qg4 Rg1 Bh1 Ra1 e4 Rg2 Qh5 Kf2 Qc4 Ra5 Qh6 Rc5 Qf8 Qe1 Qe8 Rc7 Qec6 Rh7 Q6c5 Rh8 Qc6 Qd2 Qg1+ Kg3 e1Q+ Qf2 Qeb4 Qe2 Qh2+ Kf2 Qbc5 Nf7+ Kc7 d6+ Kb6 d7 Ka5 d8Q+ Ka4 d5 Ka3 Qf3 Ka2 Qe2+ Kb1 Qa5 Nd6 Qb6+ Nb5 d6 Qc7 Nd5 Qe5 Nf4 Q5c6 Rg1 Qec5 Rg4 Raf8 a8Q Rd8 Qc8 Rde8 Qd7 Ra8 Qdd8 Ra2 Qh7 Ra5 Rg7 Ra1 Qhg6
kB3NN1/1p2Nr2/pq1Pqn2/4nQPB/6Q1/Kn1N1rb1/b5r1/2N2R1n b - - 0 1 legal: proof: b4 d5 a4 c5 e4 g5 h4 gxh4 Na3 f5 exf5 Nc6 c4 Nd4 Ra2 Nb5 Rc2 Nc3 bxc5 Nxa4 c6 Nc3 c5 Na2 Rc4 dxc4 g4 e5 f4 h5 d4 a6 Kd2 h3 Kc2 c3 Kb3 c2 f6 h4 d5 h2 f5 e4 g5 h3 c7 Kd7 f7 e3 f6 e2 Nc4 e1Q Ka4 Qe6 Bb2 c1N Be2 Bd6 f8Q Rh7 f7 Nd3 Ka3 Bg3 Be5 Nac1 Nb2 Nb3 Bh5 Nf6 Ne2 Rb8 Re1 h1R Rf1 h2 Nc1 Rg1 Qg4 h1N Bf4 Ne5 Nbd3 Bf2 d6 Kc6 Be3 Bg3 Bd4 Bd7 c8N Qb6 Ne7+ Kb5 c6 Rg2 c7 Rd8 Qg8 Rf8 c8N Bc6 Qg6 Bd5 Ng8 Kc6 Na7+ Kd7 Nc6 Kc8 Nce7+ Kb8 Bf2 Ka8 Be3 Rd8 f8N Rf7 Q6f5 Rc8 Nf4 Rc3 Bc5 Rf3 Nfd3 Na5 Bf2 Ba2 Bd4 Nb3 Bc5 Qc7 Ba7 Qb6 Bb8
QNrRb2n/p5pB/K3NQP1/6rB/2QqnQb1/5P2/2r2q2/1kn1Qr2 b - - 0 1 legal: proof: b4 h5 a4 c5 d4 cxd4 g4 b5 axb5 Na6 g5 Qb6 Ra3 Nb8 Rg3 Qa5 e3 Qd8 Rg4 hxg4 Nd2 d5 Ba3 d3 Qc1 d4 Nb1 d2+ Ke2 e6 Qd1 Bc5 Bh3 d3+ Kf1 Bb6 Kg2 Bc5 Bb2 f6 Be5 Bd4 exd4 fxe5 Kg3 Kf8 Bf1 Ke7 Kg2 Ke8 h4 Kd7 c4 Kd6 h5 e4 d5 Ke5 c5 Kd4 d6 g3 h6 e3 Kf3 e2 h7 e1Q b6 g2 c6 e5 d7 Ne7 b5 Rg8 h8Q Nd5 b7 Nf4 b6 Re8 c7 Re7 Na3 Kc3 Nc4 Rf7 Qh4 Qh8 d8Q Ng6+ Qf6 Bd7 c8B Qd8 Nh3 g1R Na5 Kb2 Be2 Na6 Ke4 Be8 b8Q Rc7 b7 Rc2 Bf5 Nh8 Bh7 Nc5+ Ke3 Rg4 g6 Rg5 Nf4 Ne4 Ne6 Qd6 Qc7 Rc8 b8Q+ Ka2 Qc1 d1B Qhf4 d2 Qa8 Qf1 Bh5 Bg4 f3 d1R Qd2 Kb1 Nc6 Qb4 Rh4 Qf2+ Kd3 Rf1 Qc3 Qbb6 Kc4 Qbd4+ Kb5 Nc5 Qab8 e4 Qa8 e3 Qce5 e2 Qc4 Ne4 Ka6 e1N Nb8 Nd3 Rh2 Qh4 Rd2 Nc1 Qa5 Qdf2 Rd8 Qd4 Qac3 Qhf2 Qe1
1n6/2n1b1r1/2N3N1/1n1n1K2/2P4p/Pr1N1QRQ/1p1qqq2/nN1R1NkB b - - 0 1 legal: proof: d4 a5 e4 c5 b4 axb4 e5 f6 exf6 cxd4 Nf3 g6 Ng1 g5 f4 b6 g4 Na6 f5 Bb7 Bf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Nb8 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 d3 c4 d4 a3 b3 Bg2 b5 Ke4 e5 Qe2 b4 Qe1 b2 Qg3 f3 Rh2 d2 Nh3 d1Q Ng1 d3 Nd2 b1N Qh4 b3 Qh3 b2 Ne2 f2 Bf1 h4 Nd4 Be7 Nc2 Ra7 Rg2 Qe2+ Ne3 Rh7 Rg3 Rb7 Bg2 f1Q Bh1 Rb3 Bg2 Rg7 g6+ Kf8 g5 Qff2 f7 Qd7 Nf3 d2 Ne1 d1N Nd3 Qd6 Ne1 Qdd2 Nd3 Qh5 Nf1 Qhe2+ Kd5 e4 Ke6 Ne3 Ke5 Nc3 Rd1 Rh7 Ke6 Kg7 f8N Nb5 f6+ Kh8 f7 Kg7 Ke5 Nd5 Ke6 e3 Ke5 Nf4 Kf5 Nf6 Ne6+ Kh8 f8N Ne8 Nd4 Nec7 Nf3 Nfd5 g7+ Kg8 Ng6 Kf7 g8N Rg7 Nf6 Nc6 Ne4 Nb8 Kg4 Ke6 Nc3 Kd6 Nb1 Kc6 Kf5 Kb6 Ndf4 Kc5 Nfe5 Kd4 Rc1 Qg1 Rd1 Qh2 Nfd3 Qf2+ Ngf4 e2 g6 e1N Nb4 Rh7 g7 Nc2 g8Q Na1 Qgg4 Rg7 Ng6 Qe2 Qh5 Qg1 Nfd3 Qgf2+ Qf3 Qfe1 Nh2 Qg1 Qh5 Qge3 Bf3 Qg1 Nc6+ Ke3 Bg2+ Qf3+ Ndf4 Kf2 Q5g4 Qge1 Nf1 Qfe2 Qf3+ Kg1 Nd3 Q1f2 Bh1+
3K2Rq/3n4/1rN5/p4p1k/1Q1r3R/1bNnRn2/P2P1nnR/Qr1B1Rr1 b - - 0 1 legal: proof: f4 c5 g4 g5 b4 d5 bxc5 h6 e4 dxe4 Bb2 Qd6 Bf6 gxf4 g5 Qd3 g6 Qd8 Bg5 hxg5 Kf2 b5 h4 e5 c4 a5 h5 f5 g7 Kf7 c6 b4 c7 g4 c5 g3+ Ke2 b3 c6 f3+ Ke3 b2 h6 Kg6 h7 f2 Ba6 f1R Bd3 g2 Qc1 Nd7 Bc2 Ngf6 Rh4 Ra6 Qe1 Rb6 Bd1 Be7 Nc3 b1R Nf3 g1N Nd4 Nf3 Rh3 Rg1 Qh4 Ba6 c8Q Bc4 c7 Bb3 Nc6 Rf8 h8R Ng4+ Ke2 e3 Kd3 Rf7 g8R+ Rg7 Qb7 e2 Qe1 Bh4 c8R Nf2+ Ke3 e4 Kf4 Qf6 Rce8 e3 Qf1 e1N Rh2 e2 Re3 Ra6 Qb4 Rb6 Rh7 Qd8 Rhh8 Be7 R8h3 Bh4 Qg2+ Kh5 Qg3 Rh7 Qg7 Nc5 Qe5 Rd7 Qed4 Qf6 Qe5 Qh8 Qf6 Ng5 Ke5 Rd4 Qg7 Ned3+ Kf6 Nd7+ Ke7 Nf3+ Qf6 e1N Kd8 Rb7 Ne4 Rc4 Be2 Rb2 Rd1 Ng2 Rf1 Rb1 Bd1 Ngf4 Nd6 Rb6 Ne4 Rg5 Qa1 Rg1+ Kc7 Ng2 Nc3 Nf6 Kd8 Rg4 Re2 Nd7+ Re7 Ng5 Re2 Rd4 Ree3+ Nf3+ Rxh4+
3n1N1N/1P4r1/2nnnKQB/3r4/2R1rb2/1kpQ1nQP/1Qb2p1Q/2R4n b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 Nh3 h5 Kf2 f5 Ke1 f3 Ng1 f4 Bg2 Qg5 Bh3 Qf5 gxf5 Rh6 Bg4 hxg4 Qa4 Rh5 Qd1 Rh8 Kf2 Kf7 d4 a5 b4 c5 e4 g5 f6 Ke6 e5 Kd5 h3 a4 b6 a3 e6 g3+ Ke1 g4 Kd2 a2 Kc3 f2 b7 f1N e7 f3 e8Q g2 f7 f2 b5 g3 b6 Nh6 Qd8+ Bd6 f8Q Nf5 Qa4 Nc6 b8Q Ra5 b7 Rh4 Qd1 Re4 Qde8 Nd8 Bh6 Bf4 Na3 Nd6 Nf3 g1R Nc2 g2 Ng5 Bf5 Qg7 Ng3 Rc1 a1N Nf7 Nb3 Nh8 Rb5 Qf3 Na5 Qeg6 Nac6 Qd3 Ra5 Qa7 Rb5 Qa1 Ra5 Ne1 Rb5 Nf3 Ra5 Ne5 Rb5 Rh2 Nh1 Nd7 Ra5 Nf8 Rb5 Kc2 c3 Qdg3 Kc4 d5 Kb4 Kd3 c2 Qc7 Kb3 Qb8 Rf1 Qc7 g1N Rg2 Nf3 Qh2 Rg1 Rg4 N6f7 d6 Rg3 d7 Nd6 Qca5 Rg2 Qd2 Rg3 Qe3 c4+ Ke2+ c3 Kd3 Ne6 d8Q Rd5+ Qd4 Rg2 Qh4 Ned8 Q4g3 Ng5 Rh4 Nge6 Qf3 Rg5 Qfg3 Rg4 Qe8 Rg8 Qeg6 Rg7 Q3g5 Be5 Rf1 Rg4+ Ke3 Rf4 Qgg3 c1N Qe4 Ne2 Rc1 Rg4 Qd4 Bc2 Qdd3 Rb4 Kf3 N2d4+ Kg4 Nf3+ Kh5 Re4 Rf4 Re1 Rc4 Bf4+ Kg4 Rd4 Kh5 Ree4 Kg4 Nc8 Kf5 Nd6+ Kf6 Rd5 Qb2+
bnr2qq1/b5R1/8/kbN2q1N/1NPqQB1r/1K1N1PQ1/3pN1p1/b2R4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 Be2 f5 Bg4 b5 axb5 Nc6 f3 Ne5 f4 Nf3+ gxf3 fxe4 Kf2 hxg4 Ke2 Rh3 Ke1 Rh8 Kd2 a5 b4 g5 c4 d5 Kc2 Kd7 h4 Kc7 h5 Kb6 h6 e5 h7 a4 f5 e3 f6 g3 f7 d3+ Kb2 a3+ Ka2 d4 Rh5 e4 Qc2 d2 Rh6+ Nf6 Rg6 d1B Bd2 g2 Qb3 g4 Bc1 g3 Qc3 e2 Qe1 d3 Nh3 g1Q Rg7 g2 Bf4 d2 Nc3 e3 Nf2 Bb7 Nd3 Ba4 Rd1 Bc5 f8N Rc8 Ne6 Ba8 Qh4 e1Q Ne2 Bd4 Nec5 Nd7 Qe7 Nb8 Qe4 Rg8 h8N Qg3 Ng6 Qf8 Bd6 Q1f2 Ngf4 Rh8 Nh5 Qg6 Bf4 Qgf5 Nhg3 Rh4 Nh5 Qg3 Nd7+ Ka7 b6+ Ka6 b7 Bb5 Kb3 a2 N7c5+ Kb6 Qe5 a1B Qe4 Bd7 b5 Ka5 b6 Bb5 Nb4 Qgg6 Ncd3 Qgf7 Rh7 Q7g8 Rg7 Nc6 b8N Bc5 b7 Ba7 N8a6 Nb8 Nc3 e2 Nac5 e1Q Ne2 Qh1 Na4 Qg1 Nac5 Nd7 b8Q Qd4 Qd6 Nb8 Qg6 Qfd6 Qg4 Qdf8 Qg3
R2B1QBn/1B6/qB3rr1/2rrPNq1/5pp1/3n2bk/1PBK2n1/Q1nN4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 e5 e4 h5 f3 b5 axb5 hxg4 Ra4 d3 Rd4 exd4 e5 Bb7 Ne2 Be7 Ng1 Be4 fxe4 Bf8 h4 Ke7 c4 Ke6 c5 a5 b6 f5 b7 g5 h5 d5 h6 g3 c6 a4 h7 g2 c7 d2+ Ke2 a3 c8B+ Nd7 b8Q d3+ Ke3 d4+ Kf3 a2 Qc7 a1Q Rh2 Qa6 Qa7 Nh6 Qc5 Nf7 Ne2 g1N+ Kf2 Rg8 h8B Bd6 Ng3 Ne2 Nh1 Rg6 Bf6 Nh8 Qe1 d1R Be3 d2 Bh3 d3 Ng3 Nc1 Bb7 Rc8 Nc3 Bc7 Qf8 Nc5 Bg2 g4 Bh4 Qg5 Qh1 Rg1 Bf3 Bd6 Bd1 Rc7 Ba4 d1R Bc2 d2 Bd4 Rf7 Be3 Rff6 Bd4 Qh5 Ke3 N5d3 Rf2 Rg2 Bb6 Qh6+ Bg5 Rh2 Rf4 Rh5 Bh4 Qg5 Qg1 Rf1 Qh1 d1N+ Kd2 Ne3 Nd1 Rg1 Rf3 Ng2+ Re3 f4 Nf5 Bc5 Rg3 Bf2 Rh3 Nc5 Ra3 Bg3 Ra4 Re1 Qg1 Re3 Qf1 Rc3 Qe1 Qb5 Ra8 Qc6 Qf1 Qc8 Qa6 N5d3 Qa1 Rc5 Qh6 Kf7 e6+ Ke8 e7 Kf7 e8B+ Ke6 Bbc6 Qa6 Qf8 Qh6 Nfe3 Rhd5 e5 Rf7 Be7 Rff6 Bb7 Qh4 Nf1 Kf5 Bf7 Kg5 Bed8 Kh5 Nfe3 Qg5 Bg8 Kh4 Nf5+ Kh3 Bbc7 Rdd6 Ba5 Rdd5 Bab6
3Nr1QK/2b2B2/Pp6/r3r1Qp/R2B1b2/3Q3b/Q1nk1rbP/1QR1b2r b - - 0 1 legal: proof: d4 a5 b4 axb4 Qd3 c5 Qd1 cxd4 e4 f5 Ba3 d5 Bc1 d3 Nh3 d4 Ng1 Qd5 exd5 Ra3 Nd2 Ra7 Nb1 Ra8 g4 Kd7 f4 Ra3 g5 Ke8 Nd2 Nd7 Ne4 fxe4 f5 Ndf6 gxf6 Ra8 Kf2 Kf7 Kg3 g5 Kg4 e5 Kh5 e3 a4 g4 c4 d2 a5 e4 c5 e2 c6 e1B d6 g3 c7 b3 d7 d3 d8Q b2 Kg5 b1B Ra3 h5 Ra2 b6 Nh3 e3 Qa4 d1R Qad7+ Ne7 Ra1 d2 Ba3 g2 Qd3 g1B Bc5 e2 Bd4 Nc6 Ra4 Be3+ Nf4 Bd6 a6 Re8 Kh6 Nb4 Kh7 Nc2 Ne6 Bef4 Bg2 Ba2 Be4 Ra1 Bd5 d1R Rg1 Bb7 c8Q Bc7 Bc4 Be4 Qd5 Bb3 Qcd8 Bg2 Qb5 Ba2 Qb1 Rf8 Qd5 Rae8 Rh1 Bh3 Qg2 Rc1 Bd5 Bc4 Qg5 Bb5 Qa2 Bc6 Bb3 Bcg2 Bd5 Ba5 Bb3 Rcb1 Rc1 e1R Bd5 Re5 Bc4 Rb8 Bb3 Be1 Nd8+ Ke8 f7+ Kd7 f6 Kd6 Rc4 Rfe8 f8Q+ Kd5 f7 Rc8 Kg7 Rb2 Qb1 Ra5 Qa3 Ra2 f8Q Rb2 Qd1 Ke4 Qg8 Ra2 Qd2 Ra1 Qf2 Kd3 Ra4 Rf8 Qf1+ Kd2 Qaa2 Rf7+ Kh8 Rf8 Ne6 Rce8 Nd8 Bh4 Qbb2 Be3 Re1 Rf3 Bf7 Bf4 Qfb5 Rd1 Qbb1 Bg3 Re3 Rh1 Re1 Bh4 Rc1 Be1 Qf1 Rf2 Qd3+
3qQ1Br/1q1r2bN/1r2Nn2/pkpNB1b1/1p6/4P2R/1P1Q1NqN/n1K5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Qg5 Qd1 Qd8 d3 f3 e3 b4 Kd2 Nc6 Rh3 Ba6 Rh1 Bb5 axb5 Bc5 Ra3 Be7 Rc3 Bf8 Rc2 Nb8 Ke1 Kd7 Re2 fxe2 Kd2 Ke8 g4 Kd7 d6 a5 g5 f5 g6 c5 d4 h5 d5 f4 b6 f3 b7 f2 g7 h3 Nf3 h4 Nh2 Qe7 Nc3 Nf6 g8N Bg7 Nh6 Qd8 N6g4 Nc6 b8Q e1B+ Kc2 Ra7 Bd2 Rc7 Bc4 f1Q Nf2 Qg2 Kc1 Nd4 Qe2 Nc2 Qb5+ Kc8 Qe8 Kb7 d7 Kb6 d6 Na1 Bg8 Rc6 Qd1 Ka6 Qc2 Rb6 Nd5 Kb5 Bc3 Rh7 Be5 Bc3 Nf1 h2 Qd1 h3 Qd2 Qc7 d8N+ Qd7 Nc6 Qd8 d7 Bh6 Nce7 Bg5 Ng6 Bd4 Rg1 h1Q Nf8 Rh8 Nh7 h2 Nf4 Qb7 Rg3 Qhg2 Nd5 h1R Rf3 Rh6 Nh2 Rg6 Rh3 Rg7 Qc3 Qdb8 d8N+ Rd7 Ne6 Qd8 Qe1 Ng4 Bb8 Bg7 Be5 Nf6 Qd2
n1qB1nb1/br6/1P2PB1q/K4p2/p1Q2B1r/3NpQ2/B4b2/qNRB2k1 b - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 b4 g5 h4 gxh4 Ra3 d4 Re3 d3 f4 exf4 cxd3 fxe3 d4 Qg5 d5 Qd8 d4 Kd7 g4 Kd6 b6 f5 b7 h5 g5 c5 b5 a5 g6 h3 g7 c4 Be2 a4 Nf3 h4 Bd3 h2 Qd2 h3 Qe2 c3 Qd1 c2 Be2 Rh4 Ne5 Ra7 Nd3 Nf6 g8B Nfd7 Bb2 Na6 b8B+ Nc7 b6 c1B Qc2 Bd2+ Kd1 Be1 Qc4 Bf2 Kc2 Rb7 Rc1 h1Q Kc3 h2 Kb4 Qd1 Bf7 h1Q Ka5 Bg7 Bf3 Nf8 Ba1 Qdg1 Bd1 Be6 Bb2 Qc8 e5+ Ke7 Bg8 Na8 d6+ Kd7 d5 Qf1 Bh7 Bg8 Bg6 Bh6 Bf7 Bf4 Bc7 Qfg1 Ba1 Qg6 Bc3 Qh6 Be6+ Ke8 d7+ Ke7 Bf7 Qg1 d8B+ Kd7 d6 Qf1 Qb4 Kc6 d7 Qe1 Bd4+ Qc3 Bc4 Qa1 e6 B4g3 Bce5 Bh2 Bef6 Bb8 Bde5 Ba7 Qb3 Bb8 Bf4 Ba7 Ne5+ Kc5 Qb5+ Kd4 Nd3+ Ke4 Ba2 Qb2 Qc4+ Qd4 Bc2 Kf3 Bd1+ Kg2 Bde7 Qc7 d8Q Qa1 Qdd5+ Kg1 Bd8 Qc8 Qf3
1Q1q2R1/1P1p3Q/1Q1P2p1/4n3/1b1nKR2/1B2npb1/1Q2N1bQ/1rbk2Br b - - 0 1 legal: proof: f4 h5 g4 hxg4 b4 c5 a3 e5 Nc3 exf4 bxc5 b5 a4 g3 Ne4 g2 Ng3 fxg3 axb5 Qa5 Ba3 Qb6 Bc1 Qd8 d4 Ke7 Kd2 Ke6 Ke3 Kd5 c4+ Ke6 h4 Kf5 c6 Kg4 d5 f5 d6 a5 c7 g6 b6 f4+ Ke4 f3 h5 a4 h6 a3 h7 a2 c5 Be7 c6 Bh4 Qb3 Nh6 Be3 Ba6 c8Q Nf5 c7 Nd4 b7 Nbc6 Qb8 Ne5 c8Q Ra7 Re1 a1N Qc5 Nac2 Qcb6 Bc4 Rb1 Ra1 Qb2 Ba6 Bf2 Ne3 Rc1 Rb1 Rc4 Bg5 Rh5 Bh6 Rf5 Bf4 Rf8 Bg5 Rg8 Bh4 Nh3 g1B Nf4 g2 Ra4 Bh2 Bg1 Kg3 Rc4 Bg5 Ra4 Nd1 e3 Bh6 Bc4 Bb5 Bb3 Bf1 Kd5 Bg5 e4 Bh6 Nh3 Bc1 Nf4 Kg4 Ne2 Bg3 Be3 g1B Rc4 Nec6 e5 Bg2 e6 Ne5 e7 B1f2 e8Q Be1 Ke4 Bb4 Bg1 Ne3 Qe6+ Ndf5 Qf7 Nd1 Nd4 Kg5 Kd5 Kf4 Bh2 Ke3 Ne2+ Kd3 Rf4 Nd4 Qe7 Ke3 Qh4 Kf2 Bg1+ Ke1 Ke4 Ne3 Rgf8 Rg8 h8Q Rg7 Qe7 Rh7 Rg8 Rh1 Qf7 Nd5 Qh2 Ne3 Be6 Kd1 Qfh7 Qh4 Bd5 Qd8 Bb3+
1b1b1r1n/n1N1Q2N/2b5/k1Q1R1PR/1pq1QPKb/2r3Q1/4pp2/3Q1q1B b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 f4 exf4 axb4 Na3 g6 Nb1 g5 g3 h5 f3 g4 Bb2 h4 Bd4 gxf3 g4 Bg7 Bf2 Bf8 Bg3 hxg3 d4 Kd7 a4 e5 h4 c5 d6 Kc6 a5 b5 g5 g2 Kf2 c4 Kg3 b3 a6 Kb6 a7 b2 d7 c3 d5 c2 d6 c1B h5 b4 h6 e4 h7 e3 Ra3 e2 Ra5 Nh6 Nd2 b1Q Re5 Bb2 Rh5 Qc7 d8Q Nf7 d7 Bb7 Kg4 Nc6 Ne4 Bd6 Qf8 Rc8 a8Q Na7 d8Q Bc6 Qde7 f2 Nf3 g1B Nd4 Bh2 Nf6 Bg3 Bg2 Bh4 Nb5 Ka5 Be4 Bd4 Bf3 Bb6 Bh1 Rg8 h8Q Qc1 Qh7 Nh8 Qe4 Qc4 Qfe8 Rf8 Nh7 Qb7 Q8d8 Bb8 Q8d3 Bd8 Qg3 Qd7+ Qf5 Qd2 Qab7 Qe1 Qc5 Qf1 Qbe7 Rc7 Qfc2 Rd7 Qf5 Rd3 Qe4 Rc3 Nc7+
5q1B/rRN2NP1/P1Q2qp1/1Kn1n1Q1/4p1B1/2bBn1B1/2B2rp1/2qqk3 b - - 0 1 illegal: No extended proof kernel
4b1Q1/1bK2R1B/p2N1q2/N1B3Np/qrN1q2Q/4Pr2/4pkqP/r1b1N3 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 g5 a4 b5 Ra3 bxa4 Rf3 d3 Rf4 gxf4 Ne2 e5 Ng1 d5 Nf3 d4 Nbd2 Nc6 Nb1 Nf6 Qd2 Ng4 Ng1 Ne3 Qe2 Ne7 Kd2 N7d5 exd5 e4 Qe1 Nf5 Qd1 e3+ Ke1 e2 Kd2 Ne3 fxe3 Ke7 Nh3 Kd7 Ng1 Ke8 c4 Kd7 g4 Kd6 b5 Ke5 b6 Ke4 b7 f5 b8N h5 g5 a3 g6 f3 d6 a2 c5 a1Q d7 a6 c6 f2 c7 f4 g7 f3 g8Q Ba3 Bh3 f1Q Qa4 f2 Nc6 Qh4 d8N Qg2 Nf3 f1Q Ne6 Rb8 Ne1 Bb7 c8N Qff6 Na5 Bb2 Qc4 Qa4 Rf1 Rh7 Na3 Rf7 Qb4 Qhg4 N3c4 Ba3 Bb2 Qgg6 Kc1 d2+ Kb1 d1R+ Ka2 d3 Bd4 d2 Bc5 Rc1 Rf2 d1B Bf5+ Kd5 Bb1 Q6e4 Ng5 Bc2 N8d6 Bd3 Nb2 Bb5 Nbc4 Be8 Bd3 Qb5 Kb3 Ra1 Rf1 Bc1 Bb1 Qfe6 Bc2 Qa4+ Kc3 Rf3 Bd3 Rg3 Rf7 Rf3 Bb1 Qd1 Qa4 Qf6+ Kb4 Qdd4 Nb3 Qd1 Ka5 Qdc2 Kb6 Qa2 Qb4 Qa4 Ncd2 Ke5 Na5 Kd5 Kc7 Ke5 N6c4+ Kf5 Nd6+ Kg4 Qc4 Qed4 Nf5 Rg3 Nde4 Bd5 Nd2 Rb4 Nef3 Bb7 Nd6 Rh3 Bh7 Qdf4 Qc3 Qe4 N2c4 Rg3 Qe1 Rh3 Nd4 Rg3 Nc2 Rh3 Ne6+ Kf3 Qh4 Rg3 Ng5+ Kf2 Qg4 Rh3 Ne1 Rf3 Qh4+
n3K2Q/p4p1p/R1RNp1Q1/1k4rR/1PrP2n1/3b3q/3nR1BN/R1b2r2 b - - 0 1 legal: proof: e4 b5 h4 g5 b3 gxh4 e5 b4 e6 c5 f4 c4 f5 c3 f6 dxe6 fxe7 Kd7 Bb2 cxb2 a3 Qa5 axb4 Qc7 b5 Qd8 Kf2 h3 Ke3 h2 Kf4 Bh6+ Ke5 Qa5 e8Q+ Kc7 d4 Kb6 Kd6 Qe1 g4 Bg5 c4 Ne7 c5+ Kb7 c6+ Kb6 b4 Qh4 c7 Be3 g5 Qh6 g6 Nbc6 g7 Qh3 g8R Ba6 Kd7 Rb8 c8R Qg3 Qh5 Qf3 Nc3 b1N Rg2 Bc1 Re2 Nd2 Bg2 Nd5 Ne4 Nc7 Nd6 Na8 Qg4 Qa3 Nf3 Rg8 Qf5 Rg5 Qh8 Rb7+ Ke8 Ne5 Qg6 Ng4 Rc5 Rc7 Rc2 Rc3 Rca2 Kc7 b6+ Kc6 b7 Rc2 b8R Bc4 Rd1 h1R Rc8+ Kb6 Rde1 Qe3 Rg1 Bd3 Rc7 Rc4 Ra4 Rhh5 Rh1 Rf5 Rh2 Rhg5 Rh5 Rf4 Nh2 Rf1 Nb7 Qh3 Rc6+ Kb5 R4a3 Re1 Raa6 Rf1 Nd6+
1q1R1B1Q/1bb1n1pQ/2q1N1pr/3RP1k1/R1B3r1/R2KP1rp/R5p1/n7 b - - 0 1 illegal: No proof kernel
2kn3N/p1bBRn2/P1Q3Q1/1p1Q3p/2r4r/1r1QQPR1/p1r4q/Kb3N2 b - - 0 1 legal: proof: b4 d5 a4 c5 h4 cxb4 e4 f5 exf5 g5 c4 gxh4 Ba3 bxa3 cxd5 Be6 Ke2 Bd7 Ke1 Bc8 d4 Kd7 Kd2 h5 Kc3 e5 g4 h3 a5 e4 f3 a2 Kb2 e3 f6 h2 a6 e2 d6 e1R g5 b6 g6 Re6 f7 Rh7 d5 Rh8 g7 Qg5 Qe1 Qf5 Nh3 Qe4 Ng5 Re7 Rg1 h1R Rg3 Qg4 Bb5+ Nc6 Nd2 Kd8 d7 Nb4 Nf1 Rb8 Qe3 Nc6 Re1 Qf4 Ka1 Nh6 g8Q Rh4 Qg6 Re4 Ba4 Bd6 f8Q+ Kc7 Nf7 Rc4 Qfe8 Nd8 Q8e4 Rg8 Nh8 Nhf7 Q4d3 Rc2 Qb5 Rb7 Qc6+ Kb8 Bb5 Bc7 d6 Re8 Re2 Re4 Ba4 Rec4 Re1 Ne6 d8Q Qe5+ Qc3 Qe2 d7 Qh2 Qe8 Ned8 Re7 Rb4 Qd5 Rb3 Bc6 b5 Qe3 Rb6 Bb7 Rf6 Bc6 Rff4 Qdd3 Nb7 d8Q Rfc4 Q8d6 Nbd8 Q6d5 Bf5 Qed7 Be4 Q7d6 Bf5 Be8 Kc8 Q5c6 R2c3 Q3d5 Bb1 Qdd3 Rc1 Qd6d5 R1c2 Bd7+
7Q/Qq4P1/3kbnbb/1pnBpQ1p/2Pb1nN1/2N1r1p1/QR2Q1R1/6K1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 e5 f5 gxf5 d6 Ba3 dxe5 Bc1 e4 h4 g5 Be2 b5 Nh3 b3 Ng1 g4 Ba3 b2 Bb4 cxb4 Bf1 Ra6 Qf3 Rg6 Qd1 Rg5 hxg5 Bh6 Ke2 Bg7 Ke1 Bf8 d4 Kd7 a4 h5 f4 e5 Kf2 b3 c4 Ke7 g6 Na6 f6+ Ke6 a5 Qc7 f7 Qd7 f5+ Ke7 f6+ Kd6 g7 Ne7 d5 Kc7 d6+ Kc6 Ra2 Ng6 Rh2 Qb7 d7 Nc5 d8Q Nf4 a6 Be6 Nh3 g3+ Kg1 e3 a7 e2 a8Q e1B Rg2 Bd2 Qda5 Kd6 Nc3 b1N Qe2 b2 Q5a7 Be3+ Nf2 Nd2 Qd3+ Bd4 Qe2 b1B Rb2 Be7 f8Q Nde4 f7 Nf6 Qa2 Bc2 Q8a7 Bg6 Qg8 Rh6 f8Q Rh8 Qff7 Bd8 Qh7 Rf8 Qh8 Ba5 Nd5 Bd2 Nc3 N6d5 Qf5 Nf6 Rh2 Rd8 Bg2 Ra8 Bd5 Bc1 Qa1 Bce3 Q7a2 Ra3 Rg2 Rb3 Qa7 Bc1 Q1a2 Bd2 Nd1 Re3 Nc3 Nfd3 Ng4 Re4+ Kf1 Bh6 Qb3 Re3 Kg1 Nf4 Qba2
2rn1QB1/1NB2r2/1pqNQP2/1nN2r1b/1P5b/r1NqN3/1n2k1rR/1b5K b - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 g5 e4 f5 h4 gxh4 Rh3 fxe4 Rb3 a4 a3 axb3 a4 Nh6 Bd3 Nd7 Qf3 Nf5 Kf1 Ra7 Nh3 Ra5 Ba3 Kf7 Nc3 Nc5 Rd1 Nd7 Nb1 Ra8 Bc1 Qe8 Ke2 Nb8 Rh1 Qd8 Ke1 Ke8 Qd1 Nh6 Ng1 Ng8 Ba6 Nf6 Bf1 Ng8 g4 Kd7 d4 Kd6 f4 h5 Kf2 e5 Kg2 c5 a5 b2 g5 h3+ Kh2 e3 g6 c4 f5 h4 a6 e4 a7 e2 g7 e1R Nc3 b1B Ba3 e3 Nf3 e2 Rg1 b6 Bb2 Nc6 Qb3 Rh5 Ba3 Nh6 g8N Nf7 Rg3 Be7 Kg1 h2+ Kg2 h1R Bc1 Rh2+ Kg1 h3 Rg2 Bh4 f6 Bg4 Nd2 Rf5 Nh6 Bh5 Ng4 Rd1 Qa2 e1N Nb3 Nd3 Nc5 Nb2 Ne3 Qd7 Rc2 Rg2+ Kh1 h2 Bd2 Rf8 a8Q Na7 Be1 Nd8 Bg3+ Re5 Rf2 Rd3 Be2 Qh7 Bd1 Qe4 Bb3 Rf7 Qc8 Nb5 Qe6+ Kc7 d6+ Kc6 Qa3 Qd5 d7+ Qd6 Qa2 Rf5 Qe8 Qd5 Qf8 Qf3 Bc7 Qe4 Ncd1 c3 Be6 c2 Nc3 Rh7 Bg8 Rf7 Qb3 Qd5 Rd2 Qd6 Qe6 c1R+ Ncd1 Ra3 Rc2 Na7 d5+ Kb5 Rd2 Qc6 d6 Qe4 Rf2 Qd3 Rd2 Nb7 d8N Rc4 Nc6 Nd8 d7 Rc2 Ne7 Rc1 N3d5 Kc4 Nc8 Nb5 Nd6+ Kd4 Rf2 Rcc3 N1e3 Rc2 Nf4 Kc3 Ne2+ Kd2 Nc3+ Ke1 Rf3 Kd2 Ncd1 Ke2 Rh3 Nc6 d8N Rc1 N8b7 Nd8 Na4 Rcc3 Bb8 Rc6 Nac5 Rc8 Bc7 Ke1 Na6 Kd2 Nc3 Rg6 Na2 Bg4 Kg2 Ke2 Nac5 Bh5+ Rg3 Bg5 Rh3 h1Q+ Kg3 Qf3+ Kh2 Qc6 Kg1 Bh4+ Kh2 Qd7 Kh1 Rg2 Rh2 Qc6 Nc3+
1N2kQ2/2bRN3/p2n1n2/b1NrQ2n/P2N1R1B/K2b4/1rN2P1q/1qq2n1n b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 d4 b5 Kd2 e5 Kc3 g5 Kb4 g3 h4 a6 c4 e3 a4 g4 d5 e2 d6 e1Q+ Bd2 e4 c6 e3 c5 e2 c7 Nc6+ Ka3 b4+ Kb3 Na5+ Kb2 b3 h5 Nc4+ Kc1 b2+ Kc2 Qg5 Kb3 Nf6 h6 Bf5 c8N Rb8+ Bb4 Qc1 c6 Bd3 Na3 b1N Nf3 g1N h7 g2 c7 g3 Nd4 Nh3 Na7 g1N c8N g2 Nac6 Nf4 Nac2 N4h5 N8e7 Nbd2+ Ka2 Rd8 Rh4 Nf1 Nb8 Bh6 Qd2 Bf4 Qe3 Qed1 Kb3 e1B Qe5 Ne2 Bc5 Bg3 Rf4 g1Q Ba3 Rf8 h8Q Ba5 Bc5 Qh2 d7+ Kf7 Ra2 Nd6 Rb2 Qb1 Ka3 Qdc1 Bb4 Rg8 Qh6 Rg5 Bc3 Rf8 d8N+ Ke8 Nb7 Rfg8 Nc5 R8g6 Qe6 Rd5 Qe5 Rg4 Bd2 Rh4 Re4 Rg4 Bg5 Bf4 Bh4 Neg3 Qg7 Nh1 Qh6 Rg3 Qg7 Re3 Qh6 Bg3 Rf4 Re2 Qg7 Qd1 Rb7 Rd2 Nb4 Rb2 Nbc2 Qdc1 Rd7 Bc7 Rf5 Bf4 Qh6 Bd2 Rf4 Bda5 Qf8+
1RqbKRNq/kb1rN1Pq/1npQ1bN1/3NbN2/1b6/2P1r3/5r1Q/3n2B1 b - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Ke2 Kd7 b4 a5 d4 e5 h4 f5 g6 a4 h5 f3+ Ke3 f4+ Kf2 g3+ Ke1 f2+ Ke2 f1Q+ Kd2 f3 Kc3 g2 h6 e3 g7 e4 h7 e2 Kc4 e1R+ Kd5 f2 b6 a3 b7 a2 b5 e3 b6 e2 Bf4 Bb4 Bh2 Ra7 Nc3 Nh6 Rb1 a1B Nf3 g1B Nh4 Ng4 Nf5 Rf8 h8N Qh3 Ng6 f1Q Rb3 Be3 Bg1 Bg5 Qd2 Qd3 Rh8 Nf2 Ke5 Kc6 d5+ Kc5 d6 Nd7+ Ke6 Bf6 b8N Bb7 Nc6 Qc8 Nd5 Qfh3 Nce7 Bae5 c3 c6 Qf4 Qh7 Qh2 Qdh3 Rb2 Rf7 Rf8 Kb5 Rb1 Ka6 Rb3 Nd1 Rb1 Ba8 b7 Nb6+ d7 Q3h5 b8Q Bb7 Qc7 Qh8 Qd6 Q5h7 Ng8 Bd8 Nfe7 Rf2 Rb2 Ref1 Rb3 e1B Rb1 Bf6 Kf7 Rf3 Rb2 Bg3 Ke8 R1f2 Rb3 Re3 Rb2 Bc7+ d8N Bge5 Rb1 Qf5 Ne6 Bd8 Nd4 Qc8 Qb8 Ba8 Rb3 Rd7 Qd6 Ka7 Ndf5 Bb7 Qh4 Na4 Qh6 Bba5 Kf7 Ba6 Rb6 Bb4 Rb8 Nb6 Qh2 Bb7 Ke8
2BQKn2/r7/2Qr3B/2N1Q1pP/bb3nQr/1rn1bqr1/2R1NkP1/1Q3n2 b - - 0 1 illegal: No proof kernel
qb3B2/2k1R3/R2pr1PQ/K2n1r2/n1N1Qbbq/b2b1b2/2RP1rB1/3RR3 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Nc3 g5 Na2 gxh4 axb5 Na6 b6 Nb8 b5 Bg7 Nb4 cxb4 Ba3 Bh6 Bc1 Bf8 g4 a5 c4 e5 f4 h5 g5 a4 f5 a3 b7 e3 c5 e2 f6 b3 g6 b2 c6 b1B b6 h3 c7 a2 Qb3 h2 Bg2 e4 Qh3 h4 Bb2 Ne7 Bc1 Rh5 Qc3 h3 Qb4 Rf5 Qc5 Nd5 Bf3 Bd3 Qe3 Na6 b8R Nc5 b7 Na4 Bg2 Ba3 f7+ Ke7 f8R Kd6 Nf3 Qg5 Rg1 h1B Ne5 h2 Re8 Qh6 Rb1 a1B Nc4+ Kc6 Qf4 Be5 Bb2 Qh5 Qh6 Bf4 Bg7 d6 Kf2 e1R Bf8 Qg5 Rd1 e3+ Kf3 e2 Rf1 Ra5 Ra8 Qh4 b8Q Rf6 Qa7 Re6 Rg1 Rf1+ Qf2 Bd7 c8R+ Kb7 Ra6 e1B Rb8+ Kc7 Rb2 Qd8 Rc2 Qa8 Kg4 Rc5 Qe2 Bf2 Kf3 Rb5 Qe4 Ba7+ Kg4 Bb8 Kf5 Rf2 Rge1 Bf1 Qe5 Be2 Ke4 Bd3+ Kd4 Ra5 Qe4 Rc5 Bh3 Bf3 Bg2 h1Q Qe3 Bf5 Qe4 Qh4 Kd3 Bb5 Kd4 B5g4 Kd3 Ndb6 Kd4 Rf5 Kd3 Nc5+ Kc3 Nca4+ Kb3 Bb2 Kb4 Nd5+ Ka5 Bc1 Qg5 Ba3 Qh6 Kd7 Nb2 Bd3 Nc4 Kc7 Re7+
1r1nB1K1/5rN1/2N2bbN/2Qn2b1/1N2NP2/1Rn1rb1p/q3qQrP/3kR3 b - - 0 1 illegal: No possible last move, all moves rejected
q4qr1/2bb2Qr/nqrRp1R1/4P2N/R2RK3/2k2BB1/b1R2P2/1nQ1b1q1 b - - 0 1 illegal: No possible last move, all moves rejected
4R1rk/2BP1K2/1bb4r/BB2rQ2/Q2rpNB1/1B1n4/3RPbnq/3nq1n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g6 Nc3 g5 Nd5 d6 Ne3 gxf4 g5 d5 Ng4 hxg4 cxd5 Rh7 Qb3 Rh5 Qd1 Rh8 Kf2 c5 a4 f5 d4 Kf7 h4 Kg7 d6 b5 d5 e5 h5 f3 Kg3 e4 Kh4 f4 a5 f2 d7 g3 a6 g2 d6 b3 a7 c4 Ba3 b4 Ra2 c3 Rd2 c2 Nh3 c1B Bb2+ Nf6 g6 g1N Kg5 f3 Bc3 b2 Qc2 b1R Qa4 b3 Be5 b2 Bc3 Qc7 d8B Nd7 Bb4 Ne5 d7 Bc5 Rh2 Nd5 Ba5 Ne3 Rd5 Bb6 Qa2 Bb7 Qa4 Bc6 h6+ Kg8 Bg2 f1N Kf6 f2 Bf3 Ng2 g7 Nfe3 Rd1 f1Q Ke7 Kh7 g8B+ Kg6 h7 Kg7 Rh1 Qe1 Bg4 Rb8 Rd4 Nd1 Bd5 Be3 Rd2 Bf2 a8B Bb7 Rh2 Nd3 Bg8 Qg3 Bc7 Rc1 Nf4 b1R Rh5 Rc5 Re5 Rb4 Bb3 Rd4 Re6 Bd5 Bc6 Rbg8 Bb5 Bc6 Re5 Kh6 Kf7 Qh2 Re8 Re5 Bge6 Rg6 Bh3 Rhg8 h8Q+ Kg5 Qf6+ Kh6 Qd8 Kh7 Bg4 Kh8 Qg5 Rh6 Qf5
2B4n/1q1QnN2/Nb2b3/pQN1Pbn1/Nq1b1Rk1/2rRr3/P2K4/1r1N2n1 b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 Bd2 h6 Ba5 hxg5 Bc7 g4 Be5 Kf7 Bf6 Ke8 Bh4 Qe7 Bg3 fxg3 Qc1 Qh4 Qd1 Qd8 c4 Ke7 e4 Ke6 h4 a5 f4 g5 e5 Kf5 c6 b5 c5 d5 h5 d3 c7 d4 h6 d2+ Ke2 d3+ Ke3 g2 c6 g3 h7 g4 Na3 b4 Qf3 d1R Be2 d2 Bf1 b3 Nb1 b2 Qe2 Qh4 Qa6 Ne7 Rh3 Be6 c8N Ng6 c7 Nc6 Nf3 g1N Qb5 g2 Ng5 g3 Nb6 Kg4 c8Q Nf3 f5 g1N f6 g2 f7 Nce7 Nc3 b1Q Qcd7 Rc8 Nge4 Ng5 Nba4 Qb3 Nec5 Rb1 Bd3 d1B Na6 Bc2 Nd1 Rc3 Kd2 Rg8 Bc4 Bcf5 Rd3 Nh8 Bd5 Qh1 Bb7 Qb4 Bc8 Bh6 Qd6 Rd8 f8N Rd7 Qdc6 Rd4 Qd6 Re4 Nd7 Re3 Qc7 Qh3 Qd6 Qf3 Ndc5 Qb7 Qdc6 Ne2 Qe8 g1B Qed7 Bf2 Nab2 Ng1 Nba4 Rbb3 Rc1 Rb1 Rc2 Rf3 Rb2 Bd4 Rc2 Re3 Rc1 Nhg6 h8N Bf8 Nf7 Nh8 Nb3 Neg6 Rc2 Bfc5 Rc1 Ba7 Nbc5 Ne7 Rc2 Bb6 Rb2 Qa3 Rb4 Qb3 Rc4 Qb4 Ne4 Bdc5 Ng3+ Kh3 Rf4 Bd4 Ne4 Nd5 Qd8 Ne7 Nec5 Kg3 Qdd7 Kh3 Rf3+ Kg4 Rf4+
3qN1k1/Pr3B1q/2n1p2q/2N1P3/2q1QN2/qrQ2K1b/1N3p1b/BnbR1N2 b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 g5 cxd5 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Kf2 f5 e4 Kf7 d4 c5 h4 b5 e5 f3 a5 b3 d6 b4 a6 f4 d7 c4 a7 b2 h5 b3 h6 c3 h7 c2 d5 Bh6 d6 Nc6 Bh3 Rb8 Na3 b1Q Bb2 c1Q Ba1 b2 Qd4 Rb3 Nc4 Qa2 Qc3 b1Q+ Ne2 Qaa3 Ng3 Nf6 Nf1 Nd5 g6+ Kg7 Nb2 g3+ Kg1 f2+ Kg2 Qf5 Kf3 g2 Bg4 g1B Bh5 Rf8 h8N Kg8 g7 Qh7 Ng6 Bh2 Rg1 Rf7 Rh1 Qf8 d8N Bh3 d7 e6 Nb7 Qd8 Nc5 Qd2 Qe3 Nc3 Qe4 Qb8 d8N Rfb7 Nf7 Qbd8 Nd6 Qc1 Ne8 Nb1+ Ne3 Qc4 Rd1 Bg5 Qd3 Qh6 Nf1 Qc2 Qe3 Qf5 Qc3 Qf7 Ke4 f3 Nf4 Qfc7 Nd2 f1Q Bf7+ Kh7 Ke3 f2 Kf3 Qc4 Nf1 Qce7 Ng2 Bc1 Nf4 Qeh4 Ncd3 Bf5 Kg2 Q6f6 Nc5 Bh3+ Kf3 Kh6 g8Q Qh5+ Qg4 Kh7 Na6 Qh8 Nc5 Qh6 Ng2 Q8g7 Qe4+ Kh8 Nc7 Qgh7 Nf4 Kg7 Ne8+ Kh8 Bh5 Kg8 Bf7+
2b5/B1bq1Q2/1n6/1kBQnbrq/3NpP2/2BpP3/BN1Rbbr1/K1Bq4 b - - 0 1 illegal: No proof kernel
k1B1qQ2/1p2bb2/n6P/KP2p2r/NB1b2R1/8/Q1Brq1b1/1NnBbBn1 b - - 0 1 illegal: No proof kernel
BrQq1R2/3RR2N/p2rR3/1b1b3n/Pq1P4/bQr5/p1b1nkbK/N5R1 b - - 0 1 legal: proof: c4 e5 f4 exf4 a4 b5 h4 d5 cxd5 g5 b3 gxh4 Bb2 b4 Ba3 bxa3 Kf2 Ke7 g4 Kf6 Kg2 Ke5 e4 Kd4 b4 c5 b5 f5 d6 h5 d3 Ke3 d7 h3+ Kh2 f3 b6 h4 e5 c4 g5 c3 b7 f4 e6 c2 e7 c1R e8R+ Qe7 d8R f2 g6 a6 g7 f3 Rd7 a2 Ne2 Nf6 g8Q Rh6 Nd4 Nc6 b8R Nh5 Nd2 Rc3 Rd6 Bf5 Rb7 Rb8 Ne6 Nd4 Bg2 f1Q Ra7 f2 Qgg4 Qd8 Qc2 Ne2 d4 Qb1 Rg1 Qb7 Kh1 h2 Qb1 Bc2 Nb3 Be7 Rd5 Ba3 Qb2 Rg6 Raf1 Qb4 Nf8+ Re6 Be4 Rec6 Kg2 h1B+ Kh2 Bg2 Na1 Rg6 Qc8 h3 Qb3 Rc6 Nh7 Rg6 Rde5 Rd6 R8e7 Nef4 Rb1 f1B Rad7 Bb5 Rbf1 Ne2 Rf8 Qc4 Rfe8 Kf2 Ba8 Bd5 Re4 Qb4 Kh1 h2 Rgg7 Kf1 Rf8+ Ke1 Kg2 h1B+ Kh2 Bf3 R4e6 Kf2 Rfe8 Bh1 Rg1 Bhg2 Rf8+
2B1RrrQ/4Bkb1/6Q1/K1p1qrqp/bN2Qn1P/n2n2Q1/2qP4/Nq1Q4 b - - 0 1 legal: proof: f4 e5 c4 b5 b4 g5 a4 d5 axb5 dxc4 Ra4 g4 Ra3 exf4 Rf3 gxf3 e4 h5 g4 f5 h4 c5 e5 a5 g5 a4 g6 a3 b6 a2 b5 a1Q g7 c3 e6 f2+ Ke2 c2 b7 Nf6 g8Q Bd7 Kd3 f3 Kc4 f4 b6 Nc6 Kb5 Qe5 b8Q Na7+ Ka5 Ba4 e7 Nd5 Ba6 f1Q Nh3 f2 Bb2 c1N Na3 f3 Bc8 Qd3 Nc2 f1R Nf2 Nf4 Na1 Qc2 Nd3 f2 Nb4 Ncd3 Qg2 Rg8 Qe4 Qdd5 b7 Kf7 Qc7 Qd8 b8Q Bg7 Rh3 Qdd5 Re3 Qd8 Qbb6 Nb5+ Qa6 Na3 Bc3 Qg5 Bf6 Qdd5 Re1 Rf8 Re2 Qde5 e8Q+ Kg8 Qed8 Rb8 Be7 Kf7 Qdd4 Rg8 Bd7 Rbf8 Bc8 Rg1 Qh6 f1Q Qh8 Rg2 Qg1 Rf2 Qd6 Qe1 Qg3 Qh1 Qb1 Qhc1 Re3 Q1b2 Qd1 Qbb1 Re2 Nd5 Qb6 Rf5 Qbh6 N5f4 Qb6 Ke8 Qg6+ R8f7 Qa8 Qb8 Bd8+ Kf8 Re7 Qe5 Qe4 R7f6 Rd7 Rf7 Be7+ Ke8 Qgh7 Rff8 Rd8+ Kf7 Re8 Ne2 Qh6 Nef4 Qg6+
1b2b3/p1Bnr2k/2qRB3/rn3b1r/QPpB3Q/3B1Rr1/1nP1K3/2B1N1q1 b - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 Nc3 h6 Nd5 h5 axb5 gxf4 g5 Bg7 Ne3 Bf8 Ng4 hxg4 d4 e5 b4 c5 h4 f5 h5 Kf7 g6+ Kg7 d5 g3 d6 f3 d7 g2 b6 f4 b7 e3 Nh3 g1Q Qe2 f2+ Kd1 e4 Qf3 e2+ Kd2 e1R Ra4 e3+ Kd3 e2 Ra3 Bd6 Qe3 f3 Qd4+ Nf6 Rb3 Qe8 d8B Nc6 b8Q Bf5+ Qe4 Nd7 Be3 Nd4 Bc7 Nb5 h6+ Kg8 g7 Kh7 Kd2 Qeg6 Qbb7 Rag8 Qa6 Bh2 Nf4 Qc6 Nd3 c4 Bd8 Bb8 Qa4 Ra1 Qf4 e1R Bc7 Bg6 Rc3 Be8 Qh4 Ra3 Bd4 Re7 Ne1 Ra2 Be2 f1B Kd1 f2 Rf3 Bh3 Bd3+ Bf5 Rhh3 Kg6 h7 f1N Bb2 Ne3+ Ke2 Ra1 Bc1 Nd1+ Kd2 Rf8 g8B Nb2 Be6 Rfg8 Ke2 Ra2 Qb3 Ra5 Qa4 Rgg7 Rh1 Rhg8 h8B Rh7 Rh2 Rh5 Bd4 Kh7 Rg2 Rg6 Rg4 Rg8 Re4 Rgg7 Re5 Rg6 Rd5 Rg3 Rd6
1nknrq2/bq4Q1/1pbP3B/8/1PB3p1/1BBR3b/2NK1bqN/B1r2Qn1 b - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 h5 f4 e5 g4 hxg4 a3 exf4 Ra2 a4 Rb2 Rh3 Rb3 axb3 a4 Rh8 e4 Kd7 d4 g5 h4 f5 a5 c5 e5 g3 a6 b2 d6 c4 h5 g2 d5 g4 h6 c3 h7 c2 a7 f3 Rh5 f4 Rh6 f2+ Ke2 f3+ Kd2 Ne7 Qe1 Nec6 Bc4 f1Q Rh3 f2 Nf3 g1N Nh2 Qg2 Na3 b1Q Rd3 f1B+ Qe2 Rg8 h8B b6 Bf6 Bb7 e6+ Kc8 e7 Qb2 Bh8 Qg7 e8B Qdf6 Bb3 Nd8 Bb5 Bc6 B5c4 Qb7 Qf2 Qf5 Ba1 Bg7 Bcb2 Be5 Bc3 Re8 Qe2 Qf8 d7+ Kc7 Qf2 Bg3 Qe2 Bf2 Qf3 Re1 Qf7 Rc1 Qg7 Nf7 d8B+ Kc8 Bg5 Nd8 Qf7 Rb1 Bh6 c1B+ Kd1 Bb2+ Kd2 Re1 Qg7 Rc1 Bf6 Be5 Nc2 Qf3 Bc3 Bh3 Ba1 Qg2 Bc3 Nd7 Ba1 Rb8 a8Q Bd6 Qa6 Ra8 Qg6 Bb8 d6 Ba7 Qg7 Nb8 Bfc3 Nf7 Bcb2 Kd8 Bc3 Nd7 Bd5 Rc8 Rg3 Nb8 Qf1 Kd7 Nd4 Re8 Nc2 Kc8 Rd3 Nd8 Bdc4
Q1Nq1n2/1Pp2nRr/1p4N1/Br1qNKQb/2Pb4/brR5/q4k1N/N3b3 b - - 0 1 illegal: No proof kernel
r3q1n1/1Q3Q2/1p1k1nb1/BpRP2n1/1P2Nb2/1r2N3/Nnnb1KN1/2n2NR1 b - - 0 1 legal: proof: h4 e5 f4 exf4 c4 g5 e3 gxh4 Be2 d5 cxd5 a6 Bb5+ axb5 d4 Ke7 b4 c5 a4 h5 g4 f5 a5 h3 g5 h2 g6 f3 e4 h4 e5 f4 g7 f2+ Ke2 f1N a6 h3 e6 c4 a7 c3 Nd2 f3+ Kf2 c2 Ra2 Nd7 Ne2 Kd6 e7 Qe8 Nc3 Ne3 Qf1 Ndf6 Rg1 Nc4 Ra1 Bd7 Na2 Bf5 Bb2 Bg6 Rc1 Rh5 Qg2 Rg5 Nf1 Rg3 Bc3 Nb2 Qh1 Qf7 e8Q Qe6 Qf7 Qe8 Bd2 Be7 Bg5 Bf8 Re1 c1B Re5 Bd2 Be3 Be7 Bf4 Bd8 Qg2 Bc7 Bg5 Nh7 Bd8 Ng5 Rf5 Bb8 Ba5 b6 Re5 Nh6 g8N Bc7 Nf6 Ng8 Re3 Bb8 Rc3 Bc7 Ne3 Bb8 Rc5 h1N+ Kf1 f2 Ke2 Qc6 Nf1 Rb3 Qf3 h2 Qb7 Bc7 Ne4+ Ke7 Qh5 Qe8 d6+ Ke6 d7 Bcf4 Nec3 Ke7 d8N+ Kd6+ Ne6 Qe7 Ne3 f1N Qh7 Qd8 Qhf7 Nhg3+ Kf2 h1N+ Kg2 Rb8 a8N Ne2 Nac7 Nc1 N7d5 Nhg3 Kf2 Ra8 Ng4 Ne7 Nde3 Nh5 d5 Ng8 Nh2 Nhf6 Ne4+ Ke5 Ng2 Ne3 Nf1 Qe8 Ng7 Nc2 Nf5 Ne1 N5e3 Nc2 Nec3 Kd6 Ne4+
N1B1r3/Q5n1/4NQnr/r1rpbPQ1/qQ2Q1K1/4r2p/qrb1R2P/1k2R3 b - - 0 1 illegal: No possible last move, all moves rejected
2k1b1b1/1Rn1n2N/pqN2b2/2nQR1rb/rpn2N1N/PN6/2B4P/1KQb4 b - - 0 1 legal: proof: f4 c5 g4 g5 b4 e5 bxc5 h6 d4 exd4 Be3 Be7 Bf2 Bd6 Bh4 gxf4 g5 Be7 g6 Bf8 Bg5 hxg5 Kd2 b5 Kc1 f5 e4 d5 c4 Kd7 a3 g4 g7 f3 e5 f4 Bg2 f2 Nh3 f1N Qc2 b4 Rg1 f3 Qd1 d3 Rh1 d4 Rg1 f2 Qf3 g3 Qh5 Na6 Nf4 Nd2 Be4 Ne7 g8N f1B Nh6 g2 Nf5 Rg8 Nh4 Rg5 c6+ Kc7 c5 Nb3+ Kb2 d2 e6 d1B Bc2 d3 Nd2 Bd7 Kb1 Kc8 c7 Bg7 Qf3 Bc3 Qd5 Bh5 Ra2 Bf6 Ra1 Nd4 Nb3 d2 Ra2 d1B Rb2 Ng8 e7 Ne6 e8N Bc4 Re1 g1N Re5 Ne7 Ra2 Bh8 Nf6 Nf3 Nh7 Bde8 Rb2 Qd6 Ra2 Bf6 Ra1 Kd7 c8N Nec7 c6+ Kd8 Ra2 Nc5 Rb2 Nf5 Re7 Ne5 Rg7 Ne7 Rf7 Rb8 Ra2 a6 Na7 Rb5 Rg7 Ra5 Rb2 Na8 c7+ Kd7 Nc6 Ra4 Qh1 Bg8 Qd5 Kc8 Ra2 Kb7 Ra1 Nc4 c8Q+ Kb6 Qh3 Kc7 Qe3 Kc8 Qc1 Nf5 Rb7 Ne7 Ra2 Qc7 Bd3 Qb8 Re2 Nc7 Bc2 Qa7 Re3 Qb6 Re5
1bN3R1/NnQPQrrp/4Qp1q/b2q4/q7/3b1P1B/1Kn3qk/QQ2b1R1 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 Be3 d5 axb5 dxc4 d5 Na6 Bb6 Nb8 Bd4 exd4 Kd2 Kd7 Kc1 Kd6 b4 Ke5 e4 Kf4 g4 a5 b6 c5 f3 Kg3 e5 a4 e6 a3 b7 h3 b5 c3 d6 c4 g5 f6 g6 d3 b6 h2 g7 c2 e7 a2 e8Q d2+ Kb2 c1B+ Kc3 Nh6 g8Q+ Ng4 Qe4 Na6 b8Q Bf5 b7 Ra7 Qee6 Bd3 Qa8 Nc5 b8Q Rg7 Qe3 Nb7 Qd4 Ne3 Qc8 Nc2 Bh3 Qe8 Qda7 Qa4 d7 Bd6 Qcd8 Bb8 Qe6 Rf8 Na3 Rff7 Nb5 Ba3 Qc5 Bb4+ Kb2 Ba5 Qb1 d1Q Na7 Qd2 Qcc6 Qg2 Qde7 c3+ Kc1 Qc4 Nc8 Qd5 Qcb6 Nb4 Qba7 c2 Kb2 c1B+ Kc3 Nd6 Qc7 Bd2+ Kb2 Nc2 Qa6 Be1 Ne2+ Kh4 Nc3 Kg3 Rf1 h1Q Rg1 Kh2 Qa8 Qg3 Nb5 Nb7 Qaa6 Qf4 Rg3 Qh6 Nba7 Qg2 Qec5 Bab4 Nc6 Rg5 Qd1 Bed2 Qce7 Rg6 Qa4 Ba5 N6a7 Rg8 Qde2 Bdb4 Rg1 Be1 Qd1 Rg5 Qb1 a1Q+ Kc1 Qad4 Qaa1 Qdh4 Kb2 Qa4 Qcc6 Re5 Rg8 Rg5 Qc3 Rgg7 Qc7+
4QB2/pqN2B2/2pnNRb1/1q2B3/1n1KbBQ1/2P2qqb/2rP3b/k3r1B1 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 h4 Kd6 b6 Kd5 b5 Kc4 b7 f5 b6 e5 g6 g3 h5 e3 g7 f3+ Ke1+ e2 h6 e4 h7 g2 Kf2 e3+ Kg3 f2 Kf4 Qd7 Ke5 f4 Rh4 Nh6 g8Q+ Nf7+ Ke4 f3 Rh2 Qb5 Ba3 Bh3 Qg5 Nc6 b8B Bd6 b7 Rc8 h8B Nb4 Rh1 Bh2 Qg3 Nd6+ Kf4 Bf5 Nh3 g1Q Bg7 Qg2 Qe1 Be4 Ng5 Qh3 Bg2 f1B Be5 f2 Nc3 Bg6 Qc1 e1Q Ne6 Bfd3 Rf1 e2 Ke3 Bde4 Nd5 Qd1 Bf4 Qh7 Qg4 Re8 Qb1 c6 Bc7 Rab8 c3 Qe7 Qa1 Kb3 Bb6 e1Q+ Kd4 Qf3 Ndc7 Qh7 Qd1+ Ka2 Qe2 Ka1 Be5 Qd1 Qe1 Qg3 Bf3 Qf7 Be2 Qff3 Bc4 Qb1 Ba2 Rbd8 b8B Rc8 Rg1 f1B Bc5 Bh3 Rf1 Qfe2 Rf6 Qef3 Nf8 Qb7 Bf7 Re7 Qe3 Qbf1 Nfe6 Qfb5 Ne8 Rd8 Bc7 Rb8 Bf4 Nc8 Bce5 Nd6 N8c7 Bef5 Ng7 Nd5 Nh5 Nc8 Ng7 Qb3 Bed6 Q7b6 Qf2 Re1 Qe2 Qa5 Qe6 Be4 Bde5 Rb5 Bf8 Nd6 Bc5 Qa6 Qe8 Qb7 Nge6 Ra5 Rf5 Ra2 Rf6 Rc2 Bb6 Qa4+ Kc5 Nb4 Bg7 Nb5 Bf8 Qaa6 Kc4 Qa4 Bf2 Nd6+ Kd4 Qab5 Bg1
q2nR2K/B2p4/bQqn3p/3bkBrP/b1B5/Q2R1p2/3P1B2/rnBr3N b - - 0 2 legal: proof: e4 f5 b4 fxe4 c3 b5 Bb2 a5 Bc1 axb4 Qf3 b3 Nh3 b4 Ng1 b2 Qd1 b3 f4 g6 Na3 Bh6 Nc2 Bg7 Nd4 g5 f5 Be5 Nde2 Bd6 Nf4 Bb4 cxb4 gxf4 Ke2 Kf7 a4 Kf6 h4 b1B g4 e5 h5 c5 a5 b2 b5 h6 a6 e3 Kf3 c4 a7 e2 b6 e1Q b7 c3 Rh3 c2 Bd3 Nc6 b8B Nge7 Ne2 Rg8 Ng3 Ba6 Nh1 Rg5 Ra4 Qf2+ Ke4 Qc5 Qg1 Ba2 Bc4 b1B Rd3 Qd6 Qb6 f3 Raa3 Bb3 Re3 Ba4 Rad3 Ba2 Be6 Nc8 Bc4 Rg8 g5+ Kg7 g6 Kf6 g7 B2b3 Bb2 c1R Re2 Rd1 Bc1 Q6c7 Kd5 e4 Ree3 Rh8 g8B Nd6 Bh7 Rg8 Re1 e3 Re2 Kg5 f6 Kf4 f7 Rg5+ Bf5 Qg8 Re1 Nd8 Kd4 e2 f8B Qc6 Be7 Rg2 Bh4 Rg5 Bf2 Ba2 Rg1 e1N Rf1 Ng2 Re1 Ne3 Re2 Nd5 Re8 Rg7 Bh3 Nc3 Bf5 Kg5 Ke5 Nb1 Be4 Kg4 Kf6 Rg5 Bg6 Qgd5 Kg7 Kf4 Kh8 Qe4 Bb5 Bd5 Bf5 Qe6 Bc4 Ke5 Bc7 Rc8 Bb8 Qa8 Ba2 Rc2 Bb3 Ra2 Bc4 Qc6 a8Q Ra1 Ba7 Qb7 Qc8 Qa8 Qcc5 Ne4 Rg8 Qec6 Qa3 Nd6 Re8+
1Brb1rNB/2q1n2Q/3Br1R1/1k3b2/pB4R1/P1pBQP2/2bnK1p1/b3b3 b - - 0 1 legal: proof: g4 b5 e4 g5 h4 d5 c4 bxc4 exd5 f6 Nc3 gxh4 Ne4 Qd7 Ng5 Qd6 Nf7 Qd8 g5 f5 Ne5 Nh6 Ng4 fxg4 Bh3 Ng8 Bg2 Nd7 Bf1 Nb8 d4 Kd7 b4 a5 a3 e5 d6 Kc6 d5+ Kb5 g6 h5 d7 c5 d6 g3 g7 a4 Bh6 e4 Bh3 e3 Nf3 c3 Bg2 c4 Qb3 c2 Bf1 c1B Ng1 e2 Nf3 h3 Ne5 h4 Ng6 h2 Rg1 h1R Ne7 h3 Qe3 c3 Bf4 Qc7 d8B h2 d7 Nc6 Bd6 Nf6 g8Q Ne4 Qh7 Nd2 Ng8 Bb2 Bf6 Be7 d8B Bf5 Bd4 Bg5 B8e7 Rf8 Rd1 Ba1 f3 Bc2 Rg2 Rc8 Bf8 Bd8 Rg1 Ne7 B4e5 Nb3 Rd4 Nd2 Rg2 Rg1 Rg4 h1B Rg6 Ka6 b5+ Ka5 b6 Kb5 Rh2 Bg2 b7 Bh3 b8B Bhf5 Rh4 g2 Rhg4 Rh1 Beg7 Rh6 Bf6 Kc6 Kf2 e1B+ Ke2 Kb5 Bb4 Nc6 Bfd6 Ne7 Rg7 Rg6 Bd4 Re6 R7g6 Re4 Nf6 Rf8 Ng8 Re6 B4e5 Bce4 Bh8 Bc2 Rc4 Re8 Rcg4 Bcd3+ Kd1 Rf8 Be2 Kc6 Bf1 Bde4 Bc4 Bb1 Ke2 Bbc2 Rd4 Kb6 Bd3 Kc6 Rc4+ Kb5 Rcg4+
1n1k1N2/8/Rn2RrQK/rRbPB1N1/p1pn1p2/4q2b/2Pr4/1r2QRRr b - - 0 1 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Ke2 c5 b4 e5 h4 f5 d4 a5 h5 c4 g6 e3 h6 a4 b6 e4 b5 g3 g7 g2 d5 Qg5 b7 Rh7 b6 Qe7 Na3 Bd7 Nh3 g1R Bb2 Be6 Be5 Nf6 g8Q Kd8 Qe1 Nfd7 Nb5 Ra5 Nd4 Rg5 Rf1 Rg2+ Qf2 Qa3 Qg6 Bc5 Ng5 Rf7 h7 Rf6 Rg1 Qc3 Raf1 f3+ Kd1 f4 Qe1 f2 Ke2 Bh3 h8R+ Ke7 Rh6 Kd8 Nh7 Qa3 Nf3 Qc3 Nf8 Qa3 Kd1 e2+ Kd2 Qc1+ Kc3 e3 Ng5 Bd6 Kd4 Bc5+ Ke4 Qd2 Qd1 e1R Qe2 Rd1 Qe1 e2 Kf3 Rh2 Ke4 Rh1 Kf3 Bg2+ Kg4 Bh3+ Kh5 Qc3 Rh8 Rd4 Kh6 Qe3 Rh7 Rd2 Re7 Ra8 Re6 Ra5 Qa1 e1N Qc3 Nc6 Qa1 Nf3 Qe1 Na7 b8R+ Nc8 b7 Nd4 Ra8 Nb8 Raa6 Nb6 Qd1 Nbc6 Re1 f1R b8R+ Nc8 Rbb6 Nb8 Rb5 Nb6 Qb1 Qg3 Qb4 Qe3 Ra1 Rb1 Qc3 Rb3 Raf1 Rb1 Qa1 Rb3 Qc1 Rb1 Qe1
b1n2q2/4p1R1/1pP2QR1/R6p/3rN2n/3RPbQ1/nB1KBbkb/b1r4R b - - 0 1 illegal: No possible last move, all moves rejected
2BrQKb1/nrPp2p1/1p1B4/qn4B1/B2n1Q2/bR1N3r/3PB2b/3N1k1r b - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 fxe4 a4 c5 g4 h5 Ra3 hxg4 Rb3 Ra6 Rb6 Ra8 Rb4 cxb4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 h4 b3 c4 e3 h5 g3 a6 g2 h6 b2 a5 e2 a7 e1R h7 Re4 a6 Nc6 Qg4+ Ke5 f4+ Kf6 f5 Ke5 f6 Nd4 f7 Re2 Nh3 g1B Nc3 b1R Bb2 Rh2 Nf4 Rh3 Nd1 Ke4 Be2 Rb8 a8B Bh2 a7 Nb5 Bf6 Qa5 Bg5 Rb2 Rg1 Rbb3 Rg3 e5+ Be7 Rb1 Rb3 Rb2 Bd6 Ne7 Bf1 Nc6 Nd3+ Bf4 Qf5+ Kf3 Kd5 e4 c5 b6 Bb7 e3 a8B Nca7 c6 e2 c7 e1N Qe5 Be7 f8B Nc2 Bg2+ Kg3 Bf3 Ncd4 Bc6 Rb1 Bab7 Rg8 h8Q Rc1 Ba6 Bb7 Qe4 Ba8 Bc8 Rb7 Qh5 Kh2 Qe8 Kg1 Qe5 Bg3 Qf4 Kf1 Ke5 Bh2 Kd5 Bd8 Bfe7 Rb1 Bg5 Be7 Be5 Ba3 Bd6 Rc1 Ke5 Ne6 Kf5 Ned4+ Kg6 Rgh8 Kf7 Rg8 Qee4 Rd8 Qe8 Rb8 Bce4 Bd5+ Kf8 Bg8 Bc6 Rb7 N1b2 Nc3 Ba4 Re1 Nd1 Ncb5 Bh5+ Kg2 Be2 Rh1 Bf3+ Kf1 Be2+
3Rr3/4Q1bp/q1N1Rbr1/1B2PpBB/2p1b3/qBP4n/n6Q/1k1KBn1b b - - 0 1 legal: proof: h4 d5 f4 a5 b4 axb4 c3 e5 Qb3 exf4 Qd1 g5 hxg5 d4 Na3 d3 Nc2 dxc2 d4 Ke7 a4 Kd6 g4 Kd5 e3 Ke4 a5 b5 a6 c5 a7 f5 g6 c4 g7 b3 d5 b2 g5 b1B d6 f3 g6 b4 d7 b3 Qe2 b2 Rh6 Qa5 d8B Nc6 Bd2 c1B Qh2 Bb7 Ne2 Kd3 e4 Kc2 e5 Nf6 g8B Nh5 g7 Qa6 Re6 Nf4 Bf7 Nb4 g8Q Nh3 Qg5 Rg8 Bh5 Na2 Qf6 Rc8 a8B Rg6 Qg5 Bd5 Bc6 Bg7 Bb5 Bc6 Be7 Re8 Qf6 Ba8 Qf7 Bb7 Bf6 Bc6 Qe7 Bb7 Bh4 Bd5 Bh6 Bg5 Nd4+ Kc1 Nc6 f2+ Ke2 Bh1 Bg2 f1N Be1 Kc2 Bgf3 B5f6 Be4+ Kb3 Bef3 Be4 Rd1 Kc2 Rd5 b1Q Bfg4 Qa1 Bg5 Qc1 Rd8 Qca3 Bf3 Bd5 Be4+ Kb2 Bc2 Bde4 Bb3 Kb1 Kd1
b4QB1/k3Pr1B/pB1n3K/b4bp1/B2R3N/1q1pNQP1/1rn2n2/B1qb4 b - - 0 1 legal: proof: b4 e5 f4 h5 fxe5 c5 d4 cxd4 a4 b5 Ra2 bxa4 Ra3 h4 Rf3 h3 g3 Ke7 Rf2 Ke8 Rg2 hxg2 Kd2 d5 h4 Kd7 c4 Kc6 e4 Kb6 e6 f5 e7 d3 Ke3 d4+ Kf4 d2 Kg5 a3 e5 a6 h5 g6 c5+ Ka7 h6 f4 b5 a2 e6 a1Q h7 f3 c6 f2 c7 Nf6 e8B Nc6 Bc4 f1B Qf3 d1B Nc3 d3 Be3+ Nd4 Nd5 Rb8 Rh4 Bb4 e7 Rf8 h8B Rf7 Kh6 Bf5 c8B g5 Rg4 Ba5 b6+ Ka8 b7+ Ka7 Bf2 Qc1 Ba4 Qb6 Ne3 Nc2 Rd4 Ne4+ Bf6 Nd6 B4e6 Rf8 Bg8 Qb3 Bh7 Bfe2 Be6 Bf1 Beg8 Rf7 Rh4 Bfe2 Ba1 Bf1 Rd4 Bfe2 Nh3 g1N Nf4 Nh3 Bg1 Nf2 Nfg2 Rc8 Nh4 Rc5 Qg4 Bf3 Qh5 Bc6 Qe2 Rb5 Qf3 Kb6 b8Q+ Bb7 Qf8 Ba8 Qe4 Ka7 Qc6 Qa2 Qh1 Rb2 Qf3 Qb3 Nc4 Nfe4 Rd5+ Kb7 Bb6 Nf2 Ne3 Nde4 Bd8 Nd6 Rd4+ Ka7 Bb6+
1KNb2N1/p2R3b/1Q3PpQ/1nn3q1/P3prnN/2Br2Nq/1n5q/1NR1k3 b - - 0 1 illegal: No possible last move
1b1rRq1R/qn1bR3/nB1pR2p/3B1Rk1/2Q5/1n2q3/1Pp1Qr1P/2nNK3 b - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 f5 d4 fxg4 d5 Bf5 d6 Nc6 Nc3 Bc8 Ne4 Nb8 d7+ Kf7 Nd6+ exd6 Qa4 Kf6 Qd1 Ke7 e4 Kf6 f4 c5 b6 g5 b7 a5 f5 h6 Be3 g3 Bc1 g2 Bd3 g4 Qc2 a4 Nf3 g1Q+ Ke2 a3 Bd2 c3 Bf4 a2 Ba6 g3 Ng5 c4 Re1 a1N Nh3 g2 Be3 Nb3 Nf2 Be7 Bb6 Kg5 e5 Nf6 e6 Ne4 f6 Nec5 f7 Qf8 d8R Bd7 Re8 Bd8 e7 Bc7 Nd1 Ra7 Bb5 Nba6 b8R Nb7 Bc6 Rg8 Rbd8 Bb8 Bd5 Ra8 Qe4 c2 Qd3 c3 Qc4 Qd4 Rhf1 g1Q Rf6 Rg7 Re6 Qge3+ Kf1 c1N Rc8 Qh8 f8R c2 Re2 Rg6 Ke1 Rf6 Rcd8 Rf2 Rf5+ Kh4 Rc8 Qg7 Rh8 Qf8 e8Q Kg4 Rf7 Kg5 Rc5 Ba7 Rfe7 Rd8 Qh5+ Kf4 Re8 Bb8 Qf3+ Kg5 R6e7 Qef4 R2e6 Qfe3+ Qfe2 Qdg7 Ra5 Qgd4 Bc7 Qa7 Bb6 Qe4 Rc5 Qe3 Bg2+ Qf5 Rce5 Qg3 Bd5 Qe3 Re4 Qf7 Rf4 Qf8 Rf5+
1BQ2QBb/1Nb2pRB/2brqn2/q5pq/8/3rNP1p/bnPkBK2/7B b - - 0 1 illegal: No proof kernel
R2Q1Q1N/b4p1N/krpb1pr1/q5Qn/2nB3K/2b1Q3/1rP1qP2/1rQ2R2 b - - 1 2 illegal: No extended proof kernel
K1n3Q1/1p1N4/p1n1B1Qr/qn3rQ1/1Pr1qp1q/2Q2PQk/3B4/1Rb2R1r b - - 0 1 illegal: No proof kernel
3bq3/pQ6/PRRB2pB/2Q1p3/4p1BN/B1qq2r1/rPkn1Br1/3nK2b b - - 0 1 legal: proof: e4 b5 g4 h5 c4 bxc4 Nc3 f5 exf5 hxg4 Ne4 d5 Qb3 dxe4 Qc2 Rh3 Qd1 Rh8 Qb3 e5 f4 Ke7 d4 Kd6 h4 Kd5 a4 c5 h5 g3 f6 g2 a5 Bh3 h6 Nc6 a6 Be7 f7 Nf6 f8Q Na5 h7 Ng4 f5 Rg8 h8B Nf2 Qe3 c3 f6 c4 f7 c2 Nf3 g1Q Ke2 Qg6 Qb3 Nd1 Be3 c1R Bf2 Bg2 Rh6 Bh1 Nh4 Qe6 Ra3 Ra1 Bh3 Ra2 Ke1 Qdd6 Qb4 c3 Qb7+ Kc4 d5 Kd3 Rb3 Nc4 Rb6 c2 Qfc8 c1Q f8B Qa3 d6 Nd2 d7 Qb1 d8B Qc3 Bc7 Qg6 Qe6 Re8 Qf5 Bd8 Ba3 Re6 Bb8 Qe8 Qf8 Rg6 Qc5 Rg2 Bd7 Kc2 Bf5 Kc1 Rhc6 Qd3 Bd6 Kc2 Be6 Rf8 Bh3 g6 Bg7 Rf3 Bg4 Rfg3 Bh6
n1K5/q4N1p/1r6/pN2b1BR/PnN1q1nP/bpk1pNR1/5N1Q/2b2Q1r b - - 0 2 legal: proof: g4 c5 e4 f5 b4 fxe4 f4 d5 Kf2 d4 Be2 cxb4 f5 d3 f6 Bf5 gxf5 dxe2 Ke3 Kd7 Kd4 Kc6+ Ke5 Kc5 Ke6 Kd4 h4 e1B c4 g5 c5 b5 d3 b3 a3 e3 c6 g4 f7 b2 f6 g3 c7 b4 c8Q g2 Nd2 b1Q Qc7 e2 Nh3 g1B Nf2 b3 Nc4 Nd7 Rh3 Qb8 Rg3 Bd2 Qf1 Kc3 d4+ Qd3 d5 e1N d6 Nb6 d7 Nc2 d8N Nb4 Qd6 Bh2 Ra2 Bdh6 Bg5 a5 a4 Ra6 Re2 Qa7 Re5 Na8 Rb5 Rb6 Rd5 Qa6 Kd7 Qa7+ Kc8 e5 Rb5 Be7 f8N e4 f7 Nf6 Nfe6 Re8 f8N Ng4 Nd7 Rf8 Nd4 Rg8 Rg2 Be5 Rg3 Rg6 Nf7 Re6 Bf6 Bc1 Bg5 e3 Qb8 Qe4 Rd5 Red6 Nb5+ Kc2 Rc5 Rd1 Qc7 Na6 Rd5 Bea3 Qb8 Nb4 Rc5 Bf4 Nde5 Re1 Nf3 Be5 Rc6 Rd1 Rh6 Re1 Rh5 Rd1 Qg2 Rh1 Qf1 Beb2 Rg2 Bc3 Qh2 Be5 Nbd6 Kc3 Rg1 Ra6 Rg3 Rb6 Nb5+
3BQbbN/n1p1p3/R1BPQB2/3nrBr1/3k4/1p1NP1B1/q3pK1n/q3r3 b - - 0 1 illegal: No possible last move, all moves rejected
Bk4B1/b1B1q1pn/R3bR1p/p1P2q1Q/b1p1Qr2/1nB2rq1/1KB3P1/5N2 b - - 0 1 illegal: No proof kernel
BR1Q1Q2/6p1/K1p1n2R/2P1p1rk/n3b3/b1N1B1rB/1b1rP1Bp/q5rB b - - 0 2 illegal: No proof kernel
q6N/b1Qn1B2/bkp1Pn2/6q1/2Pr1B2/2pR1rnB/ppK1B3/N1n1Q2B b - - 0 1 illegal: No proof kernel
NN1kr1q1/1p2N3/1Q2r3/K1n1nbp1/pB4Q1/1b1r4/P2qpRPr/1NN4R b - - 1 2 legal: proof: e4 c5 Ke2 f5 b4 fxe4 h4 cxb4 h5 d5 h6 g6 Nh3 Bg7 hxg7 d4 Ng1 d3+ Ke3 Nf6 Be2 dxe2 Rh5 Ng8 Rh2 Qd6 Rh1 Qd8 f4 e1R+ Ne2 e5 c4 a5 d4 h5 Kd2 h4 d5 e3+ Kc2 e4 Kb3 g5 Ka4 h3 f5 b3 c5 h2 c6 b2 d6 Rh3 f6 Be6 c7 Bb3+ Kb5 a4 c8N Nc6 Qd4 Ne5 f7+ Kd7 f8Q Nf6 g8N Rf3 Rf1 h1R Qh6 Rh2 Nge7 Qg8 Rf2 Kd8 Bd2 Nfd7 Nc1 e2 Nb6 e3 Bb4 Nc5 d7 Ra6 Na8 Re6 Qg4 Rfh3 Na3 b1B Ka5 Bf5 Qg6 Rg1 Nb1 e1Q Qh6 Qd2 Qg6 e2 Qf6 Rd1 Qh6 Rc6 Qg6 Rh6 Qe6 Rc7 Qb6 Re6 Nd5 Ne4 Nd3 Nc5 Na3 Qb2 Rb1 Rd2 Rh1 Rd1 Nc1 Rd3 Nb1 Qd2 Ne3 Ke7 d8N Ke8 Nc6 Rc8 Nd5 Rd8 Nde7 Kd7 Qb5 Re8 Nb8+ Kd8 Qb6+
1r2QrB1/1k3BpK/p1n4n/1B2b3/1P1pQq2/1p4q1/NB4PB/R1qb1Nq1 b - - 0 1 illegal: No proof kernel
bq5b/bR2pN2/N1p2pq1/1b6/NQ1NPPkr/2pRB2Q/4N2q/Knn5 b - - 0 1 legal: proof: h4 g5 c4 d5 f4 dxc4 g3 g4 Bg2 Na6 Be4 Nb8 Bf3 gxf3 g4 a5 g5 Ra6 a4 b5 h5 Rg6 hxg6 bxa4 e4 h5 d4 f2+ Kd2 f1B Kc3 h4 b4 a3 d5 c6 b5 h3 d6 a4 b6 a2 Kb2 a3+ Kc2 h2 g7 Na6 b7 Nf6 g8N Rh4 b8N Bg7 g6 Nc5 Nh3 Nd3 Nh6 Bb7 Qe1 Bh8 g7 Nd5 Be3 f6 Nf5 Kf7 d7 Kg6 g8Q+ Kh5 Qb4 Nc1 Nd4 Nc3 Na6 Ba8 Qg1 Qb8 d8N Be2 Qf2 Kg4 Rd1 h1Q Ng1 Qh2 Rd3 Bf1 Nf7 Be2 Nd2 Bf1 Rb1 a1B Rb3 a2 Nge2 Nb1 Qe1 Bc3 Rb2 a1Q N2b3 Bd2 Nbc5 c3 Qf2 Qa5 Na4 Qh5 Qe1 Qg6 Qd1 Bh3 Qf1 Be1 Qd6 Bf2 Rb7 Kh5 Qb4 Be6 Ra7 Kg4 Rc7 Bc4 Rb7 Nd2 Rd7 Bb5 Rb7 Nf3 Kb1 Nd2+ Ka1 Nb1 Ne6 Bg1 N6d4 Qh5 Ne6 Rh3 Bd2 Ba7 N6d4 Qg6 Be3 Rh4 Qh3+
1rnN1q2/1Rk1p3/1p1Nb2p/2N1PQ1r/B1B1prN1/1P1p2QN/1n1b3K/1b6 b - - 1 2 illegal: No possible last move, all moves rejected
3Qq2b/pprQN1q1/P3K1n1/5B2/2nN2N1/1PN4p/1rkpp1r1/b2N1R1R b - - 1 2 illegal: No possible last move
B3N2n/4rkb1/1Q3n1n/3q1n1n/BK1PQRbN/8/2NQ1P2/N1r1b1q1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 axb5 f5 cxd5 a4 exf5 a3 b6 Bg7 b5 Bxa1 Ne2 Bg7 Bb2 Bf8 Bg7 Bxg7 Ng1 Bf8 g4 h5 d4 c5 Kd2 e5 Kc3 e4 d6 c4 d7+ Kf7 b7 h3 f6 a2 g5 e3 b6 h2 Na3 h4 Nc2 e2 Qd2 e1B Ne2 h3 Nc1 Ra7 Nb3 Nh6 Nba1 Bg7 Kb4 c3 Bg2 Rg8 Rg1 h1N Bf3 h2 Rg4 Rf8 Rf4 Ng3 Bg2 h1N g6+ Kg8 Bc6 Ngf5 Ba4 Re8 f7+ Kf8 Kb5 Nhg3 Kb4 Ke7 f8N Nh5 Nh7 Ra5 Ng5 Rc5 Nf3 Ke6 Nh4 Re7 Rg4 Qg8 d8Q Nd7 b8Q Ndf6 b7 Bd7 Qa8 Rc7 Na3 c2 b8N c1N Na6 Ne2 Rf4 Rc1 N3c2 Bc8 Qc7 Qd8 Qcb7 Qd5 Qab8 Bh8 g7 Kf7 Nc7 Be6 Rg4 Nef4 Ne8 Ng6 Rf4 Bd7 Nb3 a1Q g8B+ Kf8 Q8a8 Bg7 Qb6 Nh8 Be6 Bc8 Bed7 Kf7 Bdc6 Nfg3 Bb7 Bg4 Bbc6 Ngf5 Bb7 Qa2 Nba1 Qh1 Bf3 Qg1 Qe4 Qd5 Qe3 Qe5 Ba8 Qd5 Qe4
3Nnb1R/n6r/2PP3r/1R1RnQB1/nrq1R1NQ/5Q1q/8/q1k2bK1 b - - 0 1 legal: proof: b4 b5 e4 d5 c4 f5 exf5 a5 g4 axb4 a4 h5 gxh5 c6 c5 Qd6 Bc4 dxc4 axb5 cxb5 Ra6 Qd7 Ra1 Qd8 Kf1 Kd7 d4 Kc6 h4 Kd5 f4 Ke4 d5 g5 h6 Bg7 f6 e5 d6 c3 h7 c2 h5 g4 f7 b3 f8R b4 f5 b2 h6 g3 f6 g2+ Kf2 b3 f7 Qd7 Rh3 Ra7 Qf1 Nc6 Nf3 g1Q+ Ke1 Ba6 Rb8 Nf6 f8Q Ne8 Na3 b1N Bb2 Ke3 Qf7 e4 Bf6 b2 Rh5 Nc3 Nh2 Bf8 Nb5 Na4 Nd4 Qh3 Ne6 c1N Qg6 b1R Rd5 Rb4 Nd8 Qgg4 Qgf5 Re7 Rb7 Na7 c6 Qf4 Qh1 Bf1 Bg5 Rd7 Rbb5 Nd3+ Kd1 Ne5 Ke1 Rf7 Rc1 Rc7 Rc4 Rb7 Rdc5 Kd3 Ng4 Qc1+ Kf2 Qf4+ Qf3+ Kd2 Be7 e3+ Kg1 e2 Bg5 e1Q Rd5+ Nd3 Re4 Qa1 Re3 Qc4 Re4+ Kc2 Bf4 Ne5 Bg5 Rg8 h8Q Rg6 h7 Re6 Be7 Kc1 Qhf6 Rc7 Qh4 Rh6 h8R Rd7 Bf6 Rdh7 Bg5+
5q2/K1B1nQ2/P2kb2Q/3rrR2/r3R1RR/PN1qn3/1Q6/1bnb1Bn1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 d4 b5 a3 c5 Be3 c4 Bc1 b4 Nc3 b3 Na2 Bc5 dxc5 bxa2 Kf2 Kd7 g4 f5 e4 h5 d6 c3 g5 h3 e5 f3 Ke3 f4+ Kd4 h2 g6 f2 g7 h4 Be2 f1Q Nf3 h3 Qd2 Rh5 Qb2 c2 Nd2 f3 Nb3 f2 Bf4 Ne7 g8Q c1N Qf7 Qf8 e6+ Kc6 d7 Re5 d8R Nd7 Rg1 h1B Rg4 h2 Rb1 Kc7 c6 Kd6 c7 a1R Kc4 Bd5+ Kb5 h1B Bc4 Qh3 Bf1 Bhe4 Bg3 Bcb7 c8Q Ra6 Bf4 Qd3+ Qc4 Bf5 Rc8 Bf3+ Rc5 Bbd5 Qh7 Bd1 Qh6 Nb6 Rh4 Na4 Bh2 Ra8 Bg3 Nc3+ Kb6 N3e2 a6 Ng1 Rb5 Rc8 Ka7 Bg6 Qcf4 Rc4 Qf7 Ra4 Rbb4 Ra2 Rbg4 Bge4 Qd4 Rc2 Qb2 Rc5 Ra1 Bc4 Ra2 Rd5 Bf4 Ng8 e7+ Bg6 e8R Ne7 Bg2 f1N Bh2 Ne3 Bf1 Rd4 Ra1 Be6 Rb1 Na2 Rc1 Rd5 Rc5 Nc1 Rb5 Qe2 Bf4 Bb1 Bg3 Kc6 Bf4 Qd3 Bh2 Rh5 Bc7 Rhe5 Rc8 Rc5 Rcb8 Rh5 Rbb4 Rcg5 Rbf4 Rd5 Rbb4 Rhe5 Rf5 Kd7 Rbe4 Kc6 Bb6 Kd6 Bc7+
1b1k1n2/n3QQP1/1N3b2/r1br2RB/Q1n2rP1/n2q3N/2B1N3/3b2QK b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 a3 b6 Bg7 b5 Bxa1 Nf3 Bg7 Ng1 Bf8 Bb2 Bc5 Bg7 Be7 Bf8 Bxf8 Kf2 f5 d4 c5 e4 h5 d6 h4 b7 f3 e5 c4 g6 h3 e6 c3 g3 a2 g7 a1B e7 h2 d5 f4 b6 c2 Ba6 c1B Bd3 Nc6 b8N Rh5 b7 Bf6 Qd2 Na7 Bc2 Bg4 Qd4 Qd7 Kf1 f2 Kg2 f1N Qa4 Bd1 g4 Nd2 Nc3 Nb1 Nce2 Na3 Nh3 Bd2 Re1 f3+ Kh1 f2 Rf1 Qb5 Nd7 Bf4 Nb6 Rd8 Re1 f1N b8Q Ne3 Qb7 Nec4 Rf1 Bg3 Rf5 Ra8 Re5 Rf5 Qc7 Rf4 Rg5 Rd8 Kg2 h1R d7+ Kf7 e8B+ Ke7 Beg6 Ra8 Qb7 Kd8 Bh5 Rh2+ Kg1 Rhf2 Kh1 Bc5 Nc3 Ne7 Ne2 Ng6 Qc7+ Ke7 Qb7 Nf8 d6+ Ke6 d8Q Qd7 Nc1 Rd2 Ne2 Rd5 Qdc7 Qb5 d7 Ke7 Qe5+ Kd8 Qd4 Qb3 Qe3 Qd3 Qg1 Re5 Qf3 Rd5 Qff2 Re4 Qf5 Bb8 Qg6 Red4 Qf7 Rf4 Qg2 Nc8 Nhg1 Kc7 Nh3 Ra5 Qg1 Na7 Qg6 Kd6 d8Q+ Ke6 Qde8+ Kd6 Qee4 Kc7 Qf7+ Kd8 Qee7+
1rqbBrN1/1BP2pP1/n2QB1QK/2BbN3/2r1nN2/2kb2b1/4R3/6b1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 b5 axb5 cxd4 b4 g5 hxg5 a5 c4 a4 Ra3 Qb6 Rc3 Qa5 bxa5 dxc3 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 Kh5 d5 e4 d4 g4 f3 a6 c2 b6 a3 g6 d3 b7 Kd4 e5 d2 c5 f2 c6 a2 e6 a1B c7 Nf6+ Kg5 h5 a7 h4 e7 h3 e8B h2 g7 Bd6 g8N Be6 Bc4 f1B Na3 Bg3 Nh3 Bd3 Nf4 Bd5 Re1 h1Q Re2 Na6 b8Q Qh3 Qb1 Rb8 a8B Kc3 Bb7 Rh4 Bb3 Rh8 Nc4 Ne4+ Kf5 Rh4 Ba3 c1B Ne5 Bab2 Bc5 Ba3 Bg1 Be7 Bc5 Bd8 Bc4 Ba3 Qb6 Bb4 Qg6 Ba5 Ba2 Bb6 Bc4 Bc6 Be6 Bd5 Ba3 Bg1 Bc5 Nf6+ Kg5 Rh8 Qb1 d1R Qb6 Rc1 Qd6 Rc2 Nh6 Rf8 Ng8 Qg2 Kh6 Ne4 g5 Qh3+ Qh5 Kb3 g6 Rc4 g7 Kc3 B6d7 Qf5 Qhg6 Qg4 Bb5 Qc8 Bbd7 Be3 Bh3 Bg1 Be6
K1Qr2Q1/1Bb2n2/QN4b1/1P3pbq/3k1qQb/1R5r/P5qn/B5RR b - - 0 1 legal: proof: f4 b5 c4 c5 g4 e5 Qa4 exf4 Qxa7 h5 gxh5 d6 d4 d5 Nd2 cxd4 cxd5 Nf6 Nc4 bxc4 Qa5 Ng8 Qc7 Be7 Qa7 Bf8 Kd2 f5 b4 g5 e4 d3 Kc3 f3 Kd4 f2 h4 d2 b5 c3 e5 c2 e6 g4 e7 Kf7 Kc5 Kf6 d6 Ke5 e8Q+ Be7 h6 d1Q h7 g3 h5 g2 h6 Qd7 Kb6 Nc6 Qa6 Nd8 Ne2 g1B Nf4 Bh2 Qh5 Kd4 Nd5 Bh4 Bg2 f1Q Qg4+ Qf4 Bf3 Qg7 d7 Rb8+ Ka7 Nf7 d8R Bd7 Nb6 Nf6 Bb7 Qf3 Re8 Rd8 Re3 Be8 Rb3 Qd1 Ba3 c1B Bf8 Qg5 Bg7 Qd2 Rg1 Qg2 Rh1 Qh5 Rab1 Rf8 h8Q B2g3 Qh7 Rh8 Qg8 Be3 h7 Bd2 Rbg1 Be3 Qf3 Bc1 Bh6 Ng4 Bg5 Nh2 Qg4 Nd6 Bh6 Bg6 Bf8 Nf7 Be7 Qfe4 Bf6+ Be5 Bg7 Bcg5 Bf6 Qf4 Bg7 Rd6 Ka8 Rd5 Qc8 Rhd8 h8Q Rc5 Qb8 Rc3 Qg8 Rh3 Bf6 Kc5 Qc8+ Bc7 Nd5 Kc4 Bb2 Kc5 Ba1 Kc4 Nb6+ Kc5 Rb2 Kd4 Rb3+
qNn5/nP2q2n/1BRr1b2/r1NQ2Q1/1PK3bp/2nB1k2/1NBB4/1b6 b - - 0 1 legal: proof: e4 g5 h4 gxh4 a4 a5 d4 c5 b4 f5 exf5 b5 axb5 a4 Ra3 d6 Rb3 axb3 c4 d5 cxd5 cxd4 Kd2 Kd7 Kd3 Kd6 g4 Ke5 f4+ Kd6 g5 e5 g6 h5 b6 b2 f6 h3 g7 e4+ Kc4 d3 f5 Ke5 b7 h4 f7 h2 f6 e3 d6 Kf4 d7 d2 Nf3 e2 Ng5 e1N Na3 b1B Ne4 Ne7 g8B Ra5 Bd3 Bg7 f8N Rh6 f7 Bf6 Nc5 Nbc6 Bgh7 Na7 Bhe4 Qc7 d8B Nf3 Nd7 Ng5 f8Q Nh7 Nb8 Bg4 Qg8 Nec8 Qg5+ Kg3 Qb3 d1N Bd2 Nc3 Rc1 Qe7 Bb6 h1Q Qd1 Kf2 Bc2 Qh2 Bed3 Qhd6 Qh1 Qdd8 Qhd5 Qh8 Re1 Qg8 Re6 Qgf8 Rc6 Qfe8 Qd8 Kf3 Qdd5+ Ne4 Qge5 Bh8 Nba6 Rd6 Kd4 Bf6 Nc4 Q8d8 Nb2 Qdc7 Kc4 Qb8 Qg5 Qa8 Qd4 Nc3 Nb8 Ne4 Qde5 Nc3 Qd5+
2Q1bb2/1Bqkb1Nr/5P2/1b1bqnQR/4p1P1/B6Q/4N1N1/Qn2K1n1 b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 fxe4 h4 b5 c4 d5 cxd5 g5 a4 gxh4 a6 b4 a5 Ra7 Ra2 Rb7 Ra3 Rb6 axb6 Bg7 Rf3 Bh6 Rf8+ Bxf8 f4 e5 d4 c5 g4 h5 a7 e3 a8Q b3 b7 e2 f5 h3 f6 c4 d6 b2 d5 h4 Na3 b1N Be3 c3 Bd2 c2 Qa4+ Nd7 b8Q c1B Qba8 h2 Qdc2 h3 Qf4 Ne7 Qg5 Rh7 Bb4 Ba6 Nc4 Ba3 Qd3 Bb5 Bg2 Nf5 Ne3 Be7 Qa4 Qc7 Be4 Bf8 Ng2 Be7 Bd2 Bc5 Qa1 Kd8 Bc1 Bb4+ Kf2 Ke8 Ba3 e1Q+ Kf3 Qec3 Kf2 Kd8 Ne2 Ke8 Rc1 h1B Qde3 h2 Qh3 Qb2 Rc5 Bf8 Nf4 Bf3 Ng2 h1B Kf1 Nb8 Kf2 Nc6 d7+ Kd8 Kf1 Ncd4 Kf2 Nd2 Ke1 Nb1+ Rc3 Bbe7 Rc4 Qc6 Rc5 Kc7 d8N Kd7 d6 Qc7 Ba8 Bd5 Bb7 Bdc6 Ne6 Nf3+ Kf2 Bd5 Ng7 Ng1 Ke1 Bf7 Rd5 Be8 Rc5 Kd8 d7 Qd4 Ne3 Bd5 Ng2 e4 Bc1 Nh4 Qe5 Bb3 Ba3 Qdd6 Qf4 Qe6 Rh5 Bd5 Qc1 Qee5 Qg5 Nf5 Ba6 Qa7 Bc8 Kc7 d8Q+ Kc6 Ba6 Qac7 Qa8+ Kd7 Bb7 Nh4 Qb8 Nf5 Qc8+
4N3/KNR1R3/2P3bB/np4r1/1rP5/2RQ1brb/kq4b1/1Qqr1NR1 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 b5 f4 e5 a5 exf4 Nd2 c5 dxc5 Bd6 Nb1 Bc7 g4 f5 Bh3 h5 Ra2 f3 Qd6 f4 Qd1 Bb6 axb6 Nc6 Ra7 Nce7 Ra1 Nf5 gxf5 Rb8 Bg4 hxg4 Qd3 Ra8 Qd6 Kf7 Qd1 Ke8 Kf2 Kf7 h4 g5 e4 d5 b7 g3+ Ke1 g2 Kd2 f2 Kd3 f1Q+ Kd4 f3 b8Q b3 e5 f2 f6 Ke6 f7 b2 f8R g4 h5 g3 h6 Ne7 h7 Rg8 Nf3 g1R h8R g2 Nbd2 b1B Ra3 Ra4+ Nc4 Rb4 Bh6 Rg5 Nd2 Qd6 c3 Bg6 Rf7 Bb7 Qa4 Qc1 Rhh7 f1B Qd8 Qa6 Qc2 Nc6+ Ke3 Qa4 Rc7 Qb3 Nd6 Qbb2 c4 Na5 Rhd7 Bc6 Nb7 d4+ Kf2 d3 Ke3 Kf5 e6 Ke5 e7 Bce4 e8N Bef5 c6 Bh3 Rh2 Rh1 Rb3 g1R Re2 R1g4 Re1 Bfg2 Re7+ Kf5 Qc3 Rg3+ Kd4 Rg1 Kc5 Rf1 Ne4 d2 Kb6 d1B Ka7 Bdf3 Qc2 Kf4 Nd2 Rg1 R1e2 Rd1 Rd3 Kf5 Re1 Kf4 Rg1 Kf5 Rh7 Ke5 Nf1 Ke4 Ra3+ Ke5 Nbd6 Kd4 Rhe7 Ra4 Rd3+ Kc5 Nb7+ Kb4 Rdd7 Ka3 Rd3+ Ka2 Rc3 Rb4 Qd5 Nb3 Qdd3 Na5 Qb1+
1Q1rb2N/BR3QRQ/1P6/2n2B2/3kr3/p1B2Pnq/Kpr3rQ/2b3b1 b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 a4 b5 d4 bxa4 b4 c5 Nd2 cxd4 Nb3 axb3 Kd2 Kf7 h4 Kf6 d6 Ke5 d7 a5 f6 g5 b5 a4 f3 g4 h6 d3 Kc3 g3 Kb2 g2 f7 d2 h7 Nh6 h5 Rg8 Qc2 d1R Bd3 Nf5 h6 Rd2 Nh3 g1B Rb1 Ng3 Nf4 Na6 Bf5 Kd4 h8Q+ e5 h7 Nc5 Ng6 Bh6 f8Q Qh4 d8Q+ Bd7 Qb8 Qh3 Qf7 Be8 Qhg7 Bhe3 h8B a3+ Ka1 Bg5 Qh7 b2+ Ka2 Bh6 b6 Rg2 Bf4 Rg7 Rh2 e4 Rd1+ Rd2 Rg2 e3 Re1 e2 Be5+ Ke3 Bd6 Rg8 Bc3 Rg7 Rc1 e1R Nh8 Ree2 Re1 Rd4 Be5 Re4 Rd1 Rg8 Rd7 Rf2 Rb7 Bg5 Qa7 Rd8 Bb8 Rfd2 Qa8 Bh6 Ba7 Rgg4 Qd1 Rc2 Qd6 Rg6 Qdc7 Kd3 Qab8 Bc1 Be1 Kd4 Qf4 Nf1 Qh2 Ng3 Bc3+ Kd3 Qbc7 Nh1 Bd2 Kd4 Qb8 Rg8 Rg4 Rg5 Rf4 Rg2 Rg4 Ng3 Rg7 Rf2 Ba5 Rg2 Bc3+
4b1Qq/1Q4N1/K2P1Pp1/5n1r/2pn1Bnn/2B2Rq1/B2R1nb1/1B4Qk b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 Nc3 f5 Nh3 h5 Ne4 f4 Ng1 f3 Nf6+ Ke7 Nd5+ Ke8 Ne3 Bd6 Ng4 Bf4 gxf4 hxg4 Kc3 Kf7 Kb4 Kf6 Ka5 Kf5 b4 Ke4 d4 c5+ b6 c3 h4 c2 d5 g6 f5 a6 d6 g3 h5 g2 h6 Bd7 b5 Nf6 h7 Be8 Rh3 Ng4 Ra2 Qg5 Bf4 c1N b7 Nd3 Rd2 Nc6+ Kb6 a5 b8Q a4 Qb7 a3 Qc1 Rb8 Ka6 a2 b6 Qh4 e3 Qg3 Ne2 g1N Nd4 Rc8 Be2 f1N Ne6 f2 Ng7 Nf3 Bd1 Rb8 Bc2 Nh4 Bb1 Kf3 e4 Kg2 e5 Nfe3 e6 c4 e7 a1Q+ Ba2 Bd7 e8B Qf6 Bf7 Be8 Be6 Qa1 Qa7 Qe5 b7 Nd4 Bd7 Ra8 b8Q Qf6 Qc8 Rb8 Ba4 Rb1 Bc2 Ra1 Bb1 Qf8 Rd1 f1B Rd2+ Ndf2 Qab7+ Kg1 Qe6 Qf6 Qg8 Qf8 Qcb2 Bg2 Qc3 Qh2 Rf3 Kh1 Bd3 Rg1 Bdb1 Qg3 Qc1 Qf6 Qe6 Rf8 Qg8 Rf7 h8B Rc7 Nh5 Rh7 Bg7 Qd8 Bge5 Qc8 f6 Nef5 Ng7 Rh5 Bh6 Nb5 Bc3 Nbd4 Bf4 Qc7 Ne6 Qh7 Ng7 Qh8 Qxg1+
Q4q2/bk2p3/1rq5/5qP1/Q1qB2n1/1NRB1Pn1/2K2bqp/1N1BN1N1 b - - 0 1 legal: proof: d4 a5 b4 b5 e4 f5 a4 fxe4 axb5 c5 b6 cxd4 b5 Nf6 Ra4 Ng8 f4 Ra7 Rb4 axb4 h3 Ra1 Qd3 Ra3 Qd1 Rf3 gxf3 Bb7 Ke2 Ba6 Ke1 Bc8 Kf2 g5 Ke1 g4 Qe2 g3 Qd2 Bb7 Qd1 Bd5 Qd3 Be6 Qd1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Kd2 d5 c4 Kd7 b7 Kc7 g5 h5 c5 d3 c6 g2 f5 d4 f6 e3+ Ke1 d2+ Ke2 b3 Kd3 h4 f7 e2 Bb2 e1B Rh3 Nf6 Rh2 h3 Qe2 d1Q+ Nd2 Bf2 Qe4 Na6 b8N Ng4 Be2 Bg7 f8N Qf1 Nfd7 Rh6 Ne5 Qf8 Nb1 Nc5+ Kd2 d3 b6+ Kc8 Bd4 b2 c7 Rg6 Rh1 h2 Nbc6 Kb7 Bd1 Re6 Kc3 d2 Kc2 Bh8 Qf4 Ne4 Nd3 Ng3 Ne1 Be5 Qe4 Bd6 Qf4 Bc5 c8B+ Ka8 Ne2 g1Q Na5 Qgg2 b7+ Ka7 Nb3 Rb6 Ng1 Qc4+ Bc3 Ka6 Bf5 Bce3 b8Q Qc6 Qd8 Kb7 Qa4 Bd4 Na3 Bc5 Bd4 b1Q+ Kc3 Qbe4 Nb1 Qed5 Bd3 Qdf5 B1c2 d1Q Qda8+ Kc7 Kb2 Qc1+ Kc3 Qcf4 Bd1 Q4e4 Kc2 Qee6 Qe8 Kb7 Qd8 Qee4 Qda8+ Kc7 Bg7 Qcd5 Kd2 Qe8 Ne2 Bg1 Nc2 Qdc4 Bd4 Bf2 Re1 Qed5 Ng1 Rb4 B1e2 Qdc6 Rc1 Qef8 Bd1 Ba7 Ne1 Rb5 Rc3 Rb6 Qe8 Kb7 Kc2 Q6c5 Qd8 Qc6 Qa8+
1rn1K3/r1Q1P1NB/1B1pnrp1/3B1b2/2qNrP1k/1N6/1Rq1Q2n/6B1 b - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 h5 gxh5 a5 Bg5 e6 Bc1 Bc5 a4 b5 axb5 a4 Bh6 Ba7 Bc1 Bb6 e4 f5 e5 Ba5 Qf3 d3 Qd5 exd5 bxa5 Qh4 Ra3 Qd8 Rb3 Bb7 Rb4 Bc8 Rh4 d4 Re4 fxe4 Kd2 Ke7 h4 a3 f4 d6 c4 a2 h6 a1N b6 Nf6 h7 Bf5 h5 Rf8 h8Q Nbd7 e6 Ra6 h6 Ra8 c5 Bh7 c6 Nc5 b7 Qd7 b8Q Rf7 a6 Nh5 a7 Kf6 c7 Kf5 c8N Kg4 Ne7 Qc8 Rh2 Nd7 Qc7 Rb8 a8B Nb6 Ne2 Nc2 Nf5 Ng3 e7 Rf6 Bd5 Bg6 h7 e3+ Kd1 Qg8 Nd2 Nc8 Nb3 d2 Ba3 Qe6 Bc5 Qe4 Bg2 Nf1 Bb6 Qd3 Qg8 Qc4 h8B Bh7 Bh1 Bg6 Rf2 Nh2 Bhe4 Kh3 Qe6 Bh7 Nfg3+ Bf5 Nh5 Kh4 Qe5 Ne1 Bc2 Nef3 Bb1 Ng5 Bc2 Bh3 Bh7 g6 Ng7 Bf5 Qe4 Ne6 Qd3 Qb4 Kc2 d1R Kb2 Qb5 Ka3 Qc4 Qe4 d3 Ned4 Rc1 Rb2 d2 Qd3 d1Q Qe2 Qc3 Ka4 Ra1+ Kb5 Qdc2 Rb1 Ra7 Rb2 Nc5 Kc6 Ne6+ Kd7 Qc4 Qd2 e2 Ke8 e1R Qd1 Re4 Qe2 Ra4 Nh5 Rf7 Be5 Ra2 Ng7 Ra7 Bf6+ Kh3 Bh4 Rf6 Bf2 Nd8 Rb1 Ne6 Bg1 Kh4 Rb2
5K2/q1R1R3/2qP2rp/4rbQ1/2N5/1q1R1rrQ/1PpB2B1/1k1R1qBn b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 f4 exf4 g3 a5 Qc2 a4 Qc3 a3 Qb3 a2 Qd1 axb1Q Bh3 f5 Bg2 g5 Bf1 f3 Kf2 Bh6 Ke3 Nd7 Kd4 f2 Kc3 f4 Ra2 f3 Ra1 Nb6 h3 g4 h4 Bg5 hxg5 Nd5+ Kd4 Nf4+ Kc3 Ke7 gxf4 Ke8 Kb4 Kd7 Kc5 Ke6 e4 c3 d4 h6 e5 Kf5 e6 Ke4 d5 c2 b6 g3 e7 c6 e8R+ Ne7 g6 g2 g7 Qd7 g8Q Qa2 f5 Ra3 f6 Qb3 f7 Qa7 Kd6 c5 f8R c4 b7 c3 b8B Bf5 Qg5 Rg8 Rd8 Ra5 Rf7 Rb5 Ra6 Ra5 Rc6 Rg6+ Qf6 Rg3 Qg5 Rc5 Rc7 Rb5 Ne2 g1R Bg2 f1R Nd4 Ra5 Qe1+ Kd3 Nb5 f2 Na3 Rb5 Nc4 Rc5 Bd2 c1Q Qe6 Kc2 Kd7 Kb1 Ke8 c2 Kf8 Qd1 Qee3 Qf3 Bc1 Rb5 Rdd7 Qe4 d6 Qc6 Qf3 Ra5 Qfh5 Re5 Qh3 Bh7 Rf3 Nf5 Rc3 Bg6 Re7 Bh7 Qgh5 Rg6 Qg5 Ng3 Rh2 Nh1 Rd3 Qa5 Ba7 Qaa4 Bd4 Qa7 Be4 Rg3 Bg2 Rfe1 Rd1 f1Q+ Bf2 R1e3 Rd3 Rge6 Rd1 Bf5 Bg1 Ref3 Rd3 Nf2 Rh1 Rg6 Bh2 Qe2 Rhd1 Qf1 Bg1 Nh1 Bd2+
nn3R2/5brq/2r3k1/1QpqRN2/6RP/n1pP2B1/2R4p/b1KQN2Q b - - 0 1 legal: proof: a4 h5 h4 d5 e4 f5 exf5 b5 c4 dxc4 axb5 a5 b4 axb4 g4 g5 gxh5 g4 Bh3 gxh3 f4 Kf7 f6 c5 d3 e5 Kd2 b3 h6 h2 f5 e4 b6 b2 b7 Qe8 h7 Bd6 Ra2 Ra4 Na3 Be6 Ne2 Qd8 Re1 Be5 Ng3 Ne7 Nc2 Rg8 h8R Rg7 Rg8 Qd5 Re3 b1Q Ne1 Ra6 Rc2 Ba1 Bb2 Rd6 Be5 Rc6 Bf4 Qb4+ Kc1 c3 Ree2 e3 Bc7 Nd7 b8Q Nc8 Qb5 Ncb6 Be5 Nb8 Bf4 Rh7 Rg4 Na8 Be5 Qbe4 Bc7 Kf8 f7 Rg7 Bf4 Ke7 f8R Bf7 f6+ Ke6 Bc7 Qg6 Nf5 Qh7 Reg2 e2 Bg3 Be8 f7 Kf6 Re4 Kg6 Re5 Qd4 Rh8 Qd5 f8Q Bf7 Qe8 Qf3 Rf8 Qd5 Nf3 e1N Rg1 Ng2 Ne1 Ne3 Qc8 Nc4 Qcb7 Na3 Rgg2 Qe6 Rg1 Ra6 Qh1 Qd5 Rf1 Rf6 Rf4 Rc6 Rg4+
1B2qN1k/1p3qNb/1NBpb2r/4q2r/R2Q1P2/2K4n/3p3P/1QnB1B2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 gxh5 f5 e3 f4 exf4 a5 Be2 axb4 Bd3 Ra5 Bf1 Ra8 a4 e5 Qe2 Bc5 Qd1 Ba7 Ra2 d3 Rb2 Be3 fxe3 Ra7 Rb3 Ra8 Rc3 b3 Rc4 Qa5+ Rb4 Qd8 Rd4 exd4 Kd2 Kf7 c4 g5 h6 d6 c5 b2 h7 Kg7 a5 g4 e4 g3 e5 g2 a6 Qc7 a7 Nd7 c6 Nh6 e6 Nf6 e7 Qa5+ Nc3 b1B e8B Be6 c7 Qh5 c8B Nhg4 Nd5 Nf2 Ne3 Qf7 Nf3 g1Q Nh4 N6g4 Bc6 Nh3 Ng6 Ne5 Nf8 Qg5 Rg1 Rb8 a8N Qe8 B8d7 Qgg6 Rh1 Qgf7 Nb6 Ra8 Ba3 Ra5 Bc5 Bc2 Qb1 Rb5 Ke1 d2+ Ke2 Nd3 Nf5+ Kf6 Ng7 Nc1+ Kf3 d3 Ke3 d1Q Kd4 d2 Kc3 Qe2 Rg1 Beb3 Bg4 Be6 Bh5 Qe1 Bd1 Bg6 Bf2 Rh5 Rg5 Qe2 Ra5 Qe5+ Bd4 Rg8 h8Q Bh7 Ra4 Rh6 Nf5+ Rg7 Qg8 Rg5 Ng7 Rgh5 Qh8 Qg6 Nf5+ Kf7 Qf6+ Kg8 Ng7 Qb5 Bc5 Kh8 Qd4 Qf6 Nd5 Qe5 Ba7 Qf7 Bb8 Qbe2 Nb6 Q2b5 Bh1 Qbe8 Bc6
1B1n4/1Q1pr2b/2PK4/n2RN2P/B3B1pQ/2k1p1r1/2Nqq1q1/N1Nn4 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 c5 d4 cxd4 g4 h5 a4 hxg4 a5 e6 a6 Bc5 bxc5 b4 Ra5 Qc7 Rb5 Kf8 Rb6 axb6 cxb6 Ke8 b7 Qa5 a7 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 c4 b3 h4 b2 f4 d3 c5 e5 Kd5 g3 h5 d2 Na3 b1N Qe1 g4 Kd6 g2 Qh4+ Kg7 Nc2 e4 Ne2 g1Q Na1 Nc6 b8Q Ba6 Qb7 Nge7 f6+ Kf7 f5 d1Q+ Bd2 Rh7 Nc1 Bd3 Bf4 Qe8 Be5 Rc8 a8B Nc3 Rh2 Rb8 Rd2 Nd8 Bf4 Bc2 Bb5 Qg2 Rd5 Qdd2 Ba4 Nec6 Bh2 Na5 Bg3 Kf8 f7 Kg7 f8N Nd1 f6+ Kf7 Ne6 Bb1 Qc6 Rb3 Qb7 Rc3 Be5 Rg3 Nd4 Bd3 Ndc2 Qe7+ Kc7 Ke6 f7 Qe8 f8N+ Kf5 Kd6 Re7 Bh8+ Kf4 Ng6+ Kf3 Nd4+ Ke3 Be5 Bb1 Na2 Kd3 Nc1+ Kc3 Ndc2+ Kc4 Bf4 Kc3 Ne5 e3 Ne1 Bh7 Nec2 Qg8 Rd4 Qc4 Qc6 Qgd5+ Kc7 Qf2 Ng6 Qd3 Qb5 Q5c4 Be4 Qg2 c6 Qgf1 Qb7 Qg1 Rd5 Qd2 Bd6 Qa6 Ne5 Qgh2 Bc5 Qae2 Kd6 Qg1 Ba7 Qgg2 Bb8
2bB4/PQrr3r/1p6/n1n1r1NN/1p5q/2nR2N1/RpRR1Q1P/3k1K2 b - - 0 1 legal: proof: e4 a5 g4 h5 b4 axb4 Bd3 hxg4 Ba6 f5 exf5 c5 Bf1 c4 d4 e6 c3 Bc5 dxc5 Ne7 c6 Ra7 Bd3 Ra3 Bc2 Ra5 Bb3 cxb3 c4 Ra8 c5 Ng8 a4 Ke7 f4 Kf6 a5 d5 c7 g5 c6 b6 a6 g3 a7 d4 Ne2 d3 Ra5 b2 Kf1 d2 Ra4 g2+ Kf2 g1N Kf1 e5 Ra1 g4 Ng3 e4 Ra2 e3 Qc2 Na6 Nc3 Nc5 Nce2 Ne7 Qe4 Rh7 Nh5+ Kf7 f6 g3 Qf3 Ke6 f7 Kf5 Qf2 Ke4 f8R Kd3 f5 Kc2 f6 Kd1 f7 Rb8 Rg8 Rb7 f8N Qd4 Ne6 Qh4 N2d4 Ne2 Nf5 Nc3 Re8 Nb5 Ng5 e2+ Kg1 g2 Nfg3 Nc3 Rd8 Bd7 c8Q Rc7 Qb7 Bc8 Rd3 Rd7 c7 Nc6 Qf7 Na5 Kf2+ Kc2 Re1 d1Q Kg1 Qd2 Qf2 Qd1 Bf4 Qd2 Be5 Rde7 Bf6 Rd7 Rf1 e1R Bd8 Ree7 Re1 Re5 Re2 Kd1 Qa8 Bb7 c8R Ba6 Rc6 Bc8 Qb7 Rc7 Qf5 Rcd7 Kf2 g1R Qf7 Rg2+ Kf1 Rde7 Qf2 Rc7 N3e4 Rg4 Neg3 Rd4 Ng7 N5e4 N7h5 Rdd7 Rc4 Nb1 Rcc3 Nc5 Rc2 Nc3 Rexd2#
1r2bn1Q/1q3q1q/1k6/p2pK3/Q7/Q1Nb2p1/PP1Rn1B1/3qBNQB b - - 0 1 legal: proof: e4 c5 g4 b5 d4 cxd4 c4 bxc4 Bg5 f5 exf5 c3 Bh6 d3 Bc1 c2 Nd2 Nc6 Rb1 cxb1Q Qb3 Nb8 Qc2 Nc6 Qd1 Nb8 f4 a5 f6 Ra7 f5 Rb7 Ndf3 Qc7 f7+ Kd8 f6 Qb6 Nd2 Kc7 Nh3 Kc6 Ng1 Qd8 Nc4 g5 Nd2 Rb5 h4 Rf5 gxf5 g4 Ne2 Bh6 Ng1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 Kf2 h5 Ke3 d5 Kd4 e5+ Ke3 e4 Kf4 h4 f8Q h3 g6 g3 g7 h2 f7 e3 f6 e2 Qc2+ Kb6 Bg2 e1Q Nf1 d2 Ne2 d1Q Nc3 Ne7 g8B Qd7 Qa4 Nec6 Bd2 Qb7 Qfa3 Qe8 f8Q Bd7 f7 Qh7 Be1 Nd4 Qfd6+ Bc6 f8Q Qef7+ Ke5 Ne2 Rg1 h1B Qdc5+ Kc7 Qe3 Be8 Qc1 Kb6 Qb1 Qh4 Bh7 Rg8 Bhe4 Qhh7 Qg7 Rf8 Qh8 Nd7+ Kd6 Rg8 Qa1 Nf8 Ke5 Rg6 Bgf3 Rg7 Rg2 Rg8 Rh2 Bg2 Qb1 Bh3 Bh1 Bf5 Beg2 Bd3 Rh4 Rg6 Rd4 Rc6 Qc1 Rc8 Qe3 Rb8 Qg1 Bc4 Qh2 Ba6 Rd2 Bd3 Qg1+
2qk2K1/P4RQp/4N2Q/5q1Q/qP1nq1Rn/p2BRpb1/2R2q2/n3B3 b - - 0 1 legal: proof: d4 a5 f4 c5 f5 cxd4 f6 b5 a3 a4 b4 Ra5 bxa5 exf6 Nf3 f5 Ng1 f4 g4 g5 h3 b4 Nc3 b3 Ne4 Bb7 Ng3 Bd5 Nh5 f3 Nf4 gxf4 g5 Be6 Qd2 Bg4 hxg4 Nf6 Qd1 Rg8 Bd2 Rg6 Bc1 Ng8 Rh5 Rb6 Rh1 Rb4 axb4 Bd6 Nh3 Bc5 Ng1 Bf8 Kd2 d5 Kd3 f5 c4 f2 e4 a3 e5 f3 a6 b2 g6 b1N a7 f4 g7 Be7 g5 Nd2 c5 Bf8 g6 Qf6 e6 Qg5 c6 Qe5 c7 Nh6 g8R Nc6 g7 Nb3 e7 Nf5 Rh3 Nh4 c8R+ Kd7 Be2 f1Q Qd2 f2 Re3 f3 Ra2 Na1 Nh3 Qe1 Ng5 f1Q Rc2 Qff2 Ne6 Qc7 Rb8 Qc8 Bb2 Ke8 Bc3 Qb1 Qc1 Kd7 Be1 Ke8 Kd2 d3 Kc3 d4+ Kc4 d2 Kd5 d1Q Rb7 d3 Kd6 d2 Bd3 Nd4 Kd5 Kf7 e8Q+ Kf6 Qh5 Bd6 Re7 Qde2 Rd7 Bb8 Rdc7 d1Q Kd6 Qf8+ Kd7 Qc5 Ke8 Qc4 Re7 Bg3 Kf8 Qc3 Rh8 Qc5 g8Q Qf5 Rec7 Qb2 Qgg4 Qc3 Kg8 Qc6 Qd2 Qd7 Qgg6+ Ke7 Qc3 Qc1 Rc4 Qa4 Qgh6 Nc6 Rg4 Nd4 Kg7 Kd7 Rf8 Ke7 Kg8 Kd7 Re5 Qee4 Rf7+ Ke8 Nf4+ Kd8 Ree7 Nb5 Qcg7 Nd4 Re6 Qb7 Re3 Qbe4 Rb2 Qc7 Rc2 Qcc8 Ne6+
5Nb1/Kp1k1N2/3nNp1B/p5pb/2P1B3/q3QQ1P/rB1q1b2/R1nN4 b - - 0 1 legal: proof: f4 e5 fxe5 c5 b4 h5 d4 cxd4 g4 Qg5 gxh5 Qf6 b5 Qd8 b6 a5 a4 Ra7 bxa7 Na6 a8Q Nc5 Ra2 Nxa4 Rb2 Nc5 Qb8 Na6 Rb6 Nc7 Ra6 Nxa6 Kf2 d5 c4 d3 Ke3 g6 Kd4 d2 e4 Bf5 e6 Ne7 h3 Rh6 e5 Bc2 Ne2 Bg7 Nbc3 Rh7 h6 Bf6 Bg2 Nb4 Kc5 d4 Be4 d3 Nd4 Bg5 Qf3 d1B Qa7 Nc8 e7 d2 Ne6 Na2 Nf8 Rg7 h7 Nd6 h8B Bh4 Qb6 Be2 Nd1 f6 Bb2 Rg8 Bg7 Nc1 Bh6 g5 Qbb3 Bf2+ Qbe3 Qd7 Kb6 Qa4 Ka7 Qa3 Qf4 Bh5 Qf3 Ba4 Rf1 Bc6 Re1 Bd5 Rh1 Kf7 e8N Ke7 Nc7 Rg7 Re1 Bg8 e6 Kd8 Rf1 Rd7 e7+ Kc8 e8N Kd8 Nc3 d1Q Nce6+ Kc8 Re1 Qd2 Nd1 Rd8 N8g7 Re8 Nd8 Re5 Nf7 Rb5 Ba1 Rb2 Nge6 Ra2 Rg1 Bg3 Bb2 Bf2 Nc3 Nb3 Ra1 Nc1 Nh7 Kd7 Nd1 Ke8 Nhf8 Ke7 Nh7 Kd7 Nhf8+
r7/q1R2rPn/2brRrQ1/1P2b1R1/2nQ2Rb/1Q4qr/3B3k/1NK1N1q1 b - - 0 1 legal: proof: f4 a5 b4 d5 h4 e5 c4 exf4 cxd5 g5 e3 gxh4 Bc4 b6 a4 b5 axb5 a4 Bb3 axb3 d4 Ke7 Kd2 Kd6 g4 h5 b6 f5 b5 c5 g5 h3 e4 c4 g6 b2 g7 f3 b7 h2 Qa4 c3+ Kc2 f4 Bd2 f2 Nf3 f1R Be1 h4 Rg1 h1Q Qa6+ Qb6 Qa4 h3 Bd2 h2 Ne1 f3 Rg4 f2 Qb3 Nf6 Be3 Qf3 Ra5 h1R Qc4 Be7 Qb3 Nc6 b8R Bd7 Nd3 Qg3 Rc8 Rd8 Ra6 Ne5 Rg5 Nh7 Bd2 Nc4 Rc7 Bc6 Ne1 Qa7 Rg4 Bh4 Kd1 Rd7 e5+ Ke7 e6 Kf6 e7 Kf5 e8Q Rh3 d6 c2+ Ke2 c1B Kd1 Rf7 d5 Rf6 d7 Rd6 Qg6+ Ke5 Nc3 b1Q d8R Qa1 Kc2 Bb2 Nb1 Bc3 Kc1 Bd4 Ba5 Bc3 Rg5+ Kf4 Re8 Be5 Re6 Rg1 Bc3 f1R Ra4 Rf3 Ba5 Rgf1 Bc3 Qag1 Rb4 Qaa7 Ra4 Qg4 Bd2+ Kg3 Rb4 Kh2 Ra4 Rd7 d6 Rf6 Rb4 Rdf7 d7 Q4g3 d8Q R1f3 Qd4 Rd3 Qe3 Rd6 Ra4 Na5 Rag4 Nc4 Qd4
1B1k3n/r5P1/2QRP1Nn/2KNr1bb/1n4Nn/2bqB2B/1B2qn2/4qQ2 b - - 0 1 illegal: No possible last move
rr1NrB2/P4n2/n2Q3k/q4Rnn/q2BbBQb/3N2q1/4P3/2KQQ2n b - - 0 1 illegal: No possible last move
2nR3r/3bP1n1/rbB1Q3/nKQR1bB1/7B/Bnk2PNQ/1q1n4/n6n b - - 0 1 legal: proof: h4 d5 d4 g5 a4 gxh4 c4 b5 axb5 e5 e4 f6 Nd2 f5 cxd5 exd4 e5 Na6 Ne4 fxe4 Qe2 Nb8 Qf3 Bf5 Qd1 Bc8 Kd2 Ke7 b4 h5 g4 c5 d6+ Ke6 d7 Kd5 g5 a5 e6 e3+ Kd3 e2 g6 e1N+ Kd2 d3 Kc3 h3 g7 h4 b6 a4 b7 h2 b5 d2 b6 a3 Qa4 d1N+ Kb3 h3 Ra2 Qf6 d8B Nc6 b8Q Bd7 b7 Nf3 Qc7 c4+ Kc2 Kd4 b8B Bc5 Rb2 a2 Bg2 Na5 Rb5 Nd2 Qb3 c3 Bc6 Ne7 g8Q Nc8 Ba3 Ra6 f3 Bb6 Qh7 Qe5 Bh4 a1N+ Kc1 c2 e7 Qg7 Qe6 Kc3 Rd5 Ne3 Qcd6 Nf5 Ne2+ Kc4 Rf1 h1B Rd1 h2 Ng3 Bg2 Qc5+ Kb3 Qh5 h1N Bf4 Bh3 Bfg5 Qe5 Qg4 Ng7 Qh5 Bf5 Qg4 Ndc4 Qh3 Kc3 R1d4 Be8 Rd8 Bd7 Rd5 Qe2 Qcd6 Nd2 Qc7 Kc4 Kb2 c1N Qcd6 Ncb3 Ka2 Kc3 Qc5+ Qc4 Bc1 Kc2 Ka3 Qc3 Ka4 Nd6 Ba3 Nc8 Qg1 Qb2 Kb5 Kc3 Qc5+
r1n4B/4Pb2/bnk3qB/N3R1Rr/1PB5/3Q2R1/bKQ2n1q/r4bqR b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra5 h5 Nd5 f4 Ra1 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 h4 g5 e4 a5 b4 d5 c4 Kd7 Kc2 d3+ Kb2 a4 c5 g3 e5 g4 h5 d4 h6 a3+ Kb3 a2 h7 g2 b6 d2 f5 g3 e6+ Kc6 b7 d3 f6 Qe8 f7 Ne7 f8R Qg6 Rf4 Nd7 b8R Nb6 Re4 Ba6 Re5 Nec8 Ne2 g1Q e7 g2 Kb2 Qh2 Qb3 d1B Bh6 g1Q Nc1 d2 Bc4 f1B Qd3 f2 Nb3 Bh5 Na5+ Kc7 Rb1 a1R c6 Bh3 Rg5 f1B Re1 Be6 Ree5 Bf7 Rg3 Bd1 Reg5 Bb3 Re5 Ba2 Reg5 Nd5 Rb5 Ndb6 Rbe5 d1N+ Ka3 Re8 h8B Nf2 Kb2 Rd8 Re2 Rd4 Ree5 Kd6 c7 Kd7 Qa3 Rh4 Qe3 Rh5 Qf3 Na7 c8Q+ Kd6 Qcf5 Nac8 Qc2 Kd7 Qfd3+ Kc7 Nb3 Kc6 Na5+
1R4b1/r1BN2Nq/b2P1Nbb/R4N1Q/bb1P2n1/4rrk1/3R4/nK1n3Q b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b4 a6 e3 Qd7 b6 Nh6 b5 Qd6 b7 Qd8 b6 Ng8 Bb5+ axb5 d4 Kd7 Kd2 c5 Kc2 h5 g4 f5 e4 c4 e5 f3 g5 f2 g6 f1B g7 f4 Nh3 b4 Na3 b3+ Kb2 c3+ Kb1 b2 Kc2 b1B+ Kb3 f3 Qe2 c2 Kb2 f2 Qe1 Qc7 Be3 c1B+ Kb3 Bc4+ Kc3 f1R Ra2 Bg6 Bf2 Ra7 Rb2 Nc6 b8Q B8a6 b7 Bh6 Qe2 Nb4 Qe4 Nc2 Bg3 Na1 Nf4 h3 Ne6 h4 Nc2 h2 Ne3 h3 Nf5 Nf6 g8R Ng4 Rd2 Bb4+ Kb2 Rf3 Neg7 Bcb5 Re8 Ba4 Kb1 Rg8 Rc1 h1N Rc5 h2 Ra5 Nhf2 Qe2 h1B Qa8 Rh8 Rb8 Nd1 Qh2 Re8 Qh5 Qd6 Bh2 Qf8 Bg3 Qh8 Bh2 Qh7 Bf4 Kc7 e6+ Kb6 e7 Bg2 d6 Kc6 Bg5 Bgf1 Bf6 Bfc4 Bh4 Bg8 Be1 Rf8 e8N Re3 Bh4 Kd7 Bd8 Rf7 Nf6+ Kc6 Nd7 Rf6 Bc7 Rf8 Nc5 Kd5 Nd7+ Ke4 Nf6+ Kf3 Rd8 Rf7 b8N+ Kf4 Nbd7 Rf8 Qah1 Rf7 Ne4 Rf6 Rb8 Rf7 Ne7 Rf5 Nef6 Kg3 Qd5 Rff3+ Qe4 Rf5 Qeh1 Rff3+ Nef5+
2b1brq1/N1k2bb1/q2NnQ1r/QR1Q2Bn/PB6/7Q/2b1BP1K/1b5b b - - 0 1 legal: proof: b4 a5 h4 axb4 c4 c5 a4 g5 e4 gxh4 Na3 f5 exf5 d6 Rb1 d5 cxd5 c4 Rb3 cxb3 Nb1 Ra5 Ne2 Ra7 Ng1 Ra8 d4 Kd7 g4 b5 g5 e5 g6 h5 f6 b2 d6 e4 d5 b3 f7 h3 g7 e3 Qc2 b4 Ke2 h4 Kf3 e2 Bd2 e1Q Be2 h2 Kg2 h3+ Kg3 Na6 Bh6 Nc7 Nc3 b1B Qd3 b2 Nb5 b3 Na7 Nf6 g8Q Qf1 Bg5 Ba2 Nf3 b1B Nd2 b2 Ne4 Bg7 f8B Ne6 Rg1 h1B Kh2 Qe8 Qe3 Kd8 d7 Kc7 Bb4 Rh6 Nd6 Nh5 Qh8 Bc2 d8Q+ Kb8 Qc5 b1B Qf6 Qg8 Qa5 Bhe4 Rg3 Bg6 Rc3 Bf7 Rc6 Be8 Rb6+ Kc7 Nb7 Kb8 d6 Bc4 d7 Kc7 Nd6 Bca2 Bf3 Qa6 Be2 Rb8 Kh1 h2 Kg2 h1B+ Kh2 Nd8 Qh7 Baf7 Qhf5 Ne6 Qh3 Rb7 d8Q+ Kb8 Rc6 Rb5 Qd7 Rf5 Qdd8 Rf4 Qd5 Rf3 Q8a5 Rf5 Rb6+ Kc7 Bgd2 Rf3 Bg5 Bfg6 Qfe5 Rf8 Qf6 Bgf7 Rb5+
kb2rB2/Qn2Pq2/7R/BnrQ2R1/1n1P3q/nR1QNb2/1n1K1n1R/n7 b - - 0 1 legal: proof: g4 g5 a4 h5 f4 d5 c4 b5 axb5 gxf4 Bg2 e6 g5 e5 Bf3 Bh3 cxd5 Bc8 Na3 e4 Nc2 exf3 Ne3 Bb4 Ng4 hxg4 Qa4 Ba3 Qd1 Bf8 d4 Kd7 b4 c5 h4 Kc7 e4 Kb7 d6 f5 b6 a5 h5 f2+ Ke2 f1N g6 a4 h6 g3 d7 g2 e5 a3 b5 f3+ Ke1 c4 e6 a2 g7 c3 h7 f2+ Ke2 f4 Rh5 f3+ Kd3 c2 Rh2 Na6 Rb1 a1N Ne2 g1N Rb2 Nc7 Qd2 Ng3 Kc3 f1Q Rh4 f2 Rf4 Bd6 Rg4 Nf6 g8Q Nf5 Ra2 Ra5 Ba3 c1N Qd3 Ka8 Rg5 Nfd5+ Kd2 Bb7 Nf4 Nb4 Nd5 Nh3 Ne3 Bf3 Qf7 Rg8 h8R Re8 Rh6 Bh2 Rb2 Nd6 Qff5 Bf4 Qd5+ Nb7 Ra2 Qe7 d8B Qf7 Rb2 Qg1 Rb3 Qg3 Rb2 Qh4 Ra2 Nbc2 Bf8 Na3 Rb2 Na2 e7 Ra4 Rb3 Rc4 Rb2 Nb4 Ra2 Rc5 Rc2 Kb8 Ra2 Na5 b7 Ka7 b8R Nb7 Rc2 f1N+ Kc1 Ng3 Kd2 Ne2 Rb2 Nf2 Ra2 Na8 Ba5 Nb6 Rb2 Nc3 Rc2 Rc4 Ra2 Nba4 b6+ Ka6 Rb2 Ncb5 Rb3 Bd6 Rc8 Rc1 Rc2 Bb8 Ra2 Rc5 Rab2 Nd8 Rc2 Nb2 b7+ Bd6 b8Q Nb7 Qc7 Ka7 Qb6+ Kb8 Rc1 Ka8 Rh1 Bg3 Rh2 Bb8 Qa7+
6qk/1P1b3N/1KP1N1r1/r2bnQQB/5B1n/1nr1r3/7r/RnnNQN2 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 b4 h5 Bg5 f5 Be3 f2+ Kd2 f4 Ra6 f3 Rg6 Bd6 Rg4 Bf4 gxf4 hxg4 Kd3 Qc7 Bc1 Qb6 Kd2 Qd8 Kd3 Kf8 Kc4 g5 Kc5 Kg7 e4 d5 c4 a5 h4 g3 f5 d3 e5 d4 e6 g2 b6 g4 b5 d2 e7 d3 e8Q a4 h5 a3 b7 a2 b6 a1N Qde1 d1N Q1e6 d2 Qd6 g3 Qde6 Ra5+ Qb5 Ne7 Qe1 Bd7 Be2 f1R Nc3 f2 Nf3 g1R Nh2 Nbc6 b8N g2 b7 Ne5 Nc6 Qg8 Nd4 Nb3+ Kb6 N7g6 c5 Nh4 c6 Nb2 Bg4 d1B Bf4 Bf3 Nd1 Bd5 h6+ Kh7 f6 Nbd3 f7 Ndc1 Qc3 Re1 Ne6 f1R Bh5 Re3 Qe1 Rff3 Nf1 Rc3 f8Q Rfe3 Qfc5 Nhf3 Qf8 Nfd2 Qf6 Nb1 Qg5 Qg6 Qd3 Kg8 Qe4 Rh7 Qef5 Kh8 Qe7 Qg8 Qeg5 Rg7 h7 Rg6 Rh3 Rh1 Rh2 g1N Ra2 Qb8 Ra1 Rh2 Nd8 Kg7 h8N Ngf3 Nhf7 Nh4 Ne6+ Kg8 Qe7 Kh7 Nfg5+ Kh8 Nh7 Qg8 Qeg5
5R1b/3B3B/2N1r1r1/KnR3qP/bQRr1Q2/1B1nr1Pb/1k3r1r/2R4q b - - 0 1 legal: proof: f4 b5 d4 g5 a4 gxf4 axb5 h5 Nd2 c5 Ne4 h4 Ng3 e5 dxe5 Bd6 Be3 Bf8 Bd4 cxd4 Nf5 h3 g3 Bd6 Ne3 Bf8 Ng2 hxg2 Kd2 Ke7 e4 Ke6 c4 a5 b4 d5 h4 f5 b6 d3 Kc3 a4 b7 a3 b5 f3 b6 f2 c5 d4+ Kb4 a2 Qc2 d2 Rd1 a1R Bd3 f1R Nf3 g1Q Qc1 f4 Ba6 d3 Qb2 Nc6+ Kb5 Qg5 b8R Rf2 b7 Nh6 Re1 d1B Qa3 d2 Qb4 Nf7 h5 Rh2 Re3 Rg8 Rc3 Rg6 Rc4 Bg7 Kb6 Bd7 Rf8 Nd4 b8Q B1a4 c6 d1R c7 Ra3 c8R Re3 Ka5 Nb5 R8c5 Rd4 Qc7 Qg2 Rhc1 Re8 Bb7 Qh1 Bd5+ Ke7 e6 Kf6 e7 Bh3 Be6 Bh8 Ne5 f3 Nc6 f2 Bd7 f1R e5+ Kg7 e6 Ne5 Qd6 Nd3 Qc7 Rff2 Qf4 Rb8 e8B Rb6 e7 Rge6 Qb8 Rg6 Bf7 Kf6 Nd8 Rbe6 e8B Rc2 Nc6 Rcf2 Ne5 Kf5 Nc6+ Ke4 Bg8 Nf4 Bef7 Kd3 R1c3+ Kd2 Bh7 Nd3 Qc7 Bc2 Qf4 Kc1 Qa4 Kb2 Qb4+ Bb3 Rc1 Re8 Bd5 R8e6 Be4 Ne5 Bc2 Nd3 Qe1 Ba4 Bb3 Re8 Qb4 R8e4 Qc7 Ree6 Qf4
2b1qN1k/1n2rQ2/2r2Bq1/rPR5/1QK2bP1/1rnN1N2/2b1r3/1rQ3BN b - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 h5 f4 exf4 a3 g5 g3 h4 Ra2 h3 Bg2 hxg2 a4 b5 Ra3 g4 Rf3 gxf3 axb5 Bg7 Na3 Bh6 Nb1 Bf8 e4 f5 d4 Kf7 Kd2 Kg7 Kd3 a5 h4 c5 e5 a4 d6 f2 d5 f1R h5 f3 b6 c4+ Kc3 f4 b5 a3 b7 a2 e6 a1R e7 f2 e8Q f3 d7 R1a5 d6 Na6 b8Q Rh7 h6+ Kh8 Qf7 Nc5 Rh5 Ne7 Ne2 g1Q Nd2 Nb7 Rc5 Qe8 d8N Re1 d7 f1B Qd6 f2 Ne6 Nd5+ Kd4 c3 d8N c2 g4 Nc3 Ng3 Bd3 Nf4 Re2 Nf3 f1R+ Be3 c1R Nh1 Bc2 Kc4 R8a6 Qe1 Rb1 Qc1 Rc6 Nde6 Rb3 Nd3 Rg7 Qd4 Bd6 h7 Bf4 Nf8 Qh2 Qd6 Qh6 Bg1 Qg6 Qd4 Na4 Qc3 Rfe1 Qb4 Nc3 Qe6 Re7 Qf5 Kg7 h8B+ Kg8 Bf6 Rd1 Bh4 Kh8 Qf7 Rde1 Qb2 Rea1 Qc1 Rab1 Bf6+
7R/2q4r/1rn1b3/Pr3B2/2nnQr1k/3QB1P1/KRBqQB2/1rbr1N2 b - - 0 1 illegal: No possible last move, all moves rejected
1b2r3/2r4q/Q4Bqn/N4r1Q/1brBR2K/n1P5/2P1B1bb/B2bQNk1 b - - 0 1 legal: proof: f4 e5 a4 exf4 Na3 b5 axb5 c5 Nb1 c4 Ra4 c3 dxc3 Qe7 Ra1 Qd8 b4 h5 g4 fxg3 Ra5 h4 Ra6 g2 Rg6 Rh6 Rg4 Rh8 Rg3 hxg3 e4 Ke7 h4 Ke6 b6 Ke5 h5 d5 h6 f5 b5 a5 b7 g5 h7 f4 b6 g4 Rh4 d4 Bd2 a4 Bb5 f3 Bh6 f2+ Ke2 f1R Be3 a3 Rh1 d3+ Kd2 a2 Rh3 a1R Bd4+ Kf4 e5 R8a7 e6 Qd7 e7 Nh6 e8Q Na6 b8B+ Nc7 b7 R1a4 Qee1 Bb4 Na3 Re8 h8Q Qh7 Ne2+ Kf3 Qb1 g1B Nc4 Kg2 Rh4 Bh2 Qa2 Rf5 Na5 Bd7 Ba6 Nb5 Bbe5 Na3 Ke3 d2 b8B d1B Bd6 Bc6 B6c5 Be4 Bf6 Rc7 Bf8 Bc5 Qe6 Rc4 Bb5 Bb4 Qa6 Rf1 Bfc5 Kh1 Bce7 g2 Ng3+ Kg1 Bd6 R4c6 Be2 Rc4 Rh5 Ba8+ Re5 Bd5 Re4 Ba8 Qd2 Rf5 Nf1 g3 B6c5 Kh1 Qe1 g1Q+ Qf2 Qg2 Qe1 Kg1 Bf8 Qg6 Qh7 Qh1 Qf7 g2 B8e7 Qh7 Qh5 Bg3 Bf8 Qh3 Bd6 Qg4 Bf4 Qgg6 B4g5 Bf4+ Kf3+ Be3+ Kg3 Bb7 Bde5 Ba7 Kh4 Bb8 Bd4+ Kh1 Re7 g1B Bc1 Bg2 Bb2 Bh2 Re3 Kg1 Ba1 Rf3 Re6+ Rf2 Re3 Rf5 Re4+
4b1Nk/B1rnn2B/3b4/2q4q/1B1QqP2/2n5/nKN1N1Pr/2BQ1qRn b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f6 Ra2 f5 Rb2 fxe4 axb5 Na6 b6 Nb8 b5 Ba6 Rb3 Bc8 Rb4 axb4 d4 Kf7 Kd2 Kg7 Kc2 c5 f4 h5 d6 e5 d5 h3 d7 h2 d6 b3+ Kc3 e3 b7 c4 b6 h4 Nh3 e4 Ng5 b2 Qd5 e2 Qa5 e1Q+ Kc2 h3 Nf7 e3 Qa2 c3 Rg1 h1Q Kb3 c2 Be2 h2 Nc3 b1N Bd3 e2 Qa4 Qc7 d8N Bd7 Nh6 Ra7 Bh7 Qf1 Kb2 e1Q Nc6 Be8 d7 Ne7 d8Q Nd7 b8B Qe4 Nb4 Qc5 Ng8 Rc7 Ne2 Nc3 b7 Qce3 Bg6 Qc5 Ba7 Rh7 b8B Kh8 Qa1 Rh5 Bh7 Rh6 Bd2 c1N Nc2 N1a2 Qe1 Nc6 Be3 Bd6 Qd1 Ne7 Bc1 Qff3 Rf1 Qfh5 Re1 Qhg1 Rf1 Qgf2 Rg1 h1N Qd4+ Qce5 Bc5 Qf1 Qd1 Qe5f5 Bb4 Qc5 Ba7 Qhd5 Qc8 Rh2 Qa6 Qdf5 Qc4 Qh5 Qcd4+
4Q1b1/1rRN2Q1/1q2n2q/Pn5R/1r4kr/B1R1B1nr/1RB2P2/1K1n2nb b - - 0 1 legal: proof: e4 h5 b4 a5 c4 axb4 g3 f5 Nc3 fxe4 Nd5 e6 Ne3 d5 cxd5 Bd6 Ng4 Bf4 gxf4 hxg4 d4 Kf7 Kd2 Kg6 Kc2 Kh5 a4 g5 h4 b5 f5 c5 a5 b3+ Kb2 c4 d6 c3+ Kb1 e5 f6 c2+ Kb2 e3 d5 e2 d7 e1N d6 e4 f7 e3 f8R b4 Qe2 Bb7 Ra4 Ra7 Qf3 e2 Qf6 g3 Qc3 g4 Qd4 g2 Qe4 g3 Ka1 b2+ Ka2 b1B+ Ka1 b3 Kb2 Ba2 Qh7+ Nh6 Ka1 Na6 Be3 c1Q+ Qb1 Nd3 Ra3 e1R Nf3 g1R Rf7 g2 Rg7 Nc7 Ne5 Nc5 Bd3 Nb5 Bc2 Qb6 d8Q Ne6 Rc7 Nf5 Nd7 Ng3 Qe8+ Kg4 h5 Rd1 h6 Rd4 h7 Rb4 Rh6 Rh1 Rh5 Qd2 Qc1 g1N Qb2 Rh4 Qf6 Bh1 Qg7+ Ng5 Kb2 Rb7 Ka1 Qd3 Kb2 Qg6 Kc1 Qh6 Kb2 Rf8 h8R Rf3 Ka1 Ne4 Rf8 Rfh3 Rf5 Ng3 Rfc5 Qg6 Rc3 Ne6 Kb2 Bb1 Ra1 Ba2 Rb1 Qg5 Nb8 Qg6 d7 Qg5 d8B Qg6 Kc1 b2+ Kd1 Bc4 Nd7 Bcd5 Be7 Bb3 Ra1 b1N Kc1 Bbd5 Raa3 Bc4 Rcb3 N1c3 Rb2 Nd1 Kb1 Bcd5 Rac3 Bb3 Qf6 Qh6 B7c5 Ned4 Bf8 Bg8 Qff7 Ne6 Be7 Rb3 Ba3 Rb4 Qg7+
2qB3b/rN2kqnR/Q3rR1R/PKQ3P1/4r3/qRr5/2nQBnq1/5b2 b - - 0 1 illegal: No possible last move
1N5b/2bRr3/1b1P1rRQ/n1q3b1/nQQ2r1N/3Br1PR/4kb1Q/Kb6 b - - 0 1 illegal: No possible last move, all moves rejected
4B1Kb/1R4B1/2bN2qb/1bPrr1q1/4BP1B/NQQqNn1q/8/kr5q b - - 0 1 legal: proof: e4 c5 h4 g5 a4 f5 d4 g4 f4 Nc6 b4 Nb8 h5 Nc6 g3 Ne5 Ra3 Ng6 hxg6 fxe4 Rf3 gxf3 g4 cxd4 g5 b5 axb5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 h5 c4 d5 b6 Kd7 b5 Ke6 g7 a5 c5 d3 Kc3 h4 Kd4 e3 b7 e2 b8Q e1R b6 d2 b7 f2 g6 a4 Na3 h3 Nc4 h2 Bb2 a3 Qb3 d1B Qg3 a2 Nb6 a1B Qa7 Be2 b8B Nh6 g8B+ Nf7 g7 Rh5 Qh4 Bb5 Nd7 Bb7 Nh3 Ree5 Bg2 f1Q Nf6 B7c6 Bc7 Rb8 Nd7 Qe8 Bh7 Ng5 g8N Qg6 Ngf6 Bh6 Qa5 Rb7 Rg1 h1Q Qg3 Kf5 Ng4 Nf3+ Kc3 Ke4 Bd8 e6 Nb6 d4+ Kb3 Kd3 Bh4 Rd5 Ng5 e5 Ne3 e4 Nf7 Rhe5 Nd6 Qh3 Rh1 Qg1 Nbc4 Qg5 Na3 Qg6 Nef5 e3 Qb6 e2 Ne3 e1Q Qa5 Ke2 Qc3 d3 Rh2 Qg5 Bg6 d2 Be8 d1Q+ Kb4 Qd3 Rh1 Nd4 Be4 Nf3 Kb3 Qeb1 Kb4 Qgh2 Rd1 Qbc2 Rb1 Qh1 Qb3 Kd2 Bd4 Ree7 Bg7 Ree5 Rb2 Kc1 Qe1+ Qdd1 Qec3 Qd3 Ka5 Rd7 Kb6 Rd8 Kc7 Rb8 Qbc4 Rb6 Rb4 Bb2 Q4b3 Ba1 Ra4 Bb2 Ra7 Ba1 Rb7 Bb2 Nac4 Kb1 Na3+ Ka1 Nd1 Qg6 Kd8 Qcg2 Ne3 Q2g3 Be7 Q3g5 Bef6 Rf5 Ke7 Rfe5+ Kf8 Bc4 Qd4 Rb4 Kg8 B4b5 Qdc4 Bd4 Qbc3+ Rb2 Q3b3 Rb1 Qcc3+ Rb2 Nf7 Q5h5 Rb8 Re7 Bh4 Qhg5 Nd6 Bf6 Rb6 Ree5 Rb7 Qf7+ Kh7 Qfh5 Bf8 Bh8 Bg7 Qgg6+ Kg8 Qhg5 Qcc4 Rb1 Qcc3+
1r3Q2/B1NQbK2/Pb1RB1n1/4RnRQ/P2n3q/kbR5/1n1q4/qb1b4 b - - 0 1 legal: proof: f4 c5 b4 e5 d4 cxd4 g4 a5 bxa5 exf4 Be3 f3 Bd2 Bc5 Bc1 Bf8 Na3 h5 Qd3 b5 Nc4 f5 Ne3 f4 Qd1 Ra6 Qd3 Rf6 Qd1 Rf5 gxf5 Na6 Ng4 hxg4 Bh3 Nb8 Bg2 Qg5 Bf1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 a4 d5 e4 g5 h4 d3 c4 d4 h5 g3 h6 d2 h7 d3 f6 g2 c5 f2 c6 g4 f7 g3 a6 f3 c7 Ne7 Kf6 Nbc6 e5 Be6 Be2 f1N c8Q f2 Bb2 Ne3 Qf1 d1N Rc1 d2 Bd4 Ka3 Nf3 g1B Ba7 g2 Bc4 b4 Rh5 b3 Nd4 b2 Qe2 N3f5 Qd7 f1Q Qf3+ Qd3 Nb5+ Kb4 Rc2 Bb6 Nc7 g1Q Rc3 Ncd4 Qh3 Rg8 h8R Qgf1 Bb3 Ka3 R8h6 Bd5 e6 Rh8 Rc6 Qc2 Rd6 Ng6+ e7 Qe1 Qf3 Qc1 Rh3 Qa1 R6h5 Qe2 Qh1 b1B Rc3 Nb2 Qh4 d1B Qg5 Qa8 e8R Qd2 Re5 Bc4 Qh6 Qh1 Rg5 Qh4 Qh5 Bd5 Rdc6 Bfc5 Rce6 Rc8 f8Q Be7+ Kf7 Rd8 Qf3 Rb8 Qh5 Bde4 Rec6 Bec2 Be6+ Bb3 Rd6
B2KNb1q/1Nn3P1/3b1PN1/1Rr2n2/N2k4/1qR1Rb2/1q1q3q/3Qb1Qn b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 h4 f6 e4 Ra6 f4 f5 h5 fxe4 f5 c5 Bf4 gxf4 g5 Rg6 hxg6 cxd4 Kd2 h5 b4 e5 c4 Ke7 b6 Kd6 c5+ Kd5 f6 a4 b5 a3 c6 h4 c7 e3+ Kd3 h3 b7 f3 g7 h2 b6 a2 g6 e4+ Kc2 f2 Kb3 d3 Ka4 e2 Kb5 e1B Nh3 d2 Nf4+ Kd4 Bd3 f1Q Qc1 d1Q Nc3 d5 Qb1 e3 Na4 e2 Be4 Na6 Kc6 Bg4 b8N Qd2 c8N Qh3 b7 Nh6 g8Q Bf3 Nd7 Nc7 b8R Bg3 Re1 h1N Ndc5 Nf5 Rb5 Rh5 Nd6 Qh2 Ncb7 Qc8 Rc1 e1B Ne8 Qb8 Kd7 Rg5 Nd3 Bgd6 Rc3 Rh5 Qc1 Qa8 Rab1 a1Q Ne5 Qab2 g7 Qb8 Ng6 Rg5 Re3 Qh8 Rc5 Rh5 Rcc3 Qh2 Nbc5 Q8b3 Nb7 Qd1 Re2 Qbc2 Qg5 Nh6 Ra3 Kc4 Rb6 Qb2 Rb5 Qdc2 Rd3 Qcb3 Qg1 Re5 Qe6 Nf5 Qe7 d4 Nbc5 Rd5 Kd8 Re5 Ba8 Rd5 Rd1 d3 Nb7 d2 Rc1+ Kd3 Qf7 d1Q Re7 Rc5 Re3+ Kd4 Rcc3 Q3c2 Qa2 Qcb3 Qb1 Qdd2 Qd1
b7/n1B2Q1Q/r2bQr2/r3rR2/b1R5/kB2N3/b1rPP1Q1/1r1qb1RK b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 Kf2 h5 Na3 f5 Nc2 f4 Ke1 Nc6 Ne3 Nd4 Ra5 Be7 Ra1 Nf5 gxf5 Bf8 Ng4 hxg4 Kf2 Kd7 b4 Kd6 h4 a5 f6 g5 f7 c5 b6 g3+ Ke1 a4 h5 g2 Kf2 g4 b7 c3 b8R g3+ Ke1 c2 h6 c4 h7 c3 b5 Kc5 b6 Kb4 b7 a3 Rh3 a2 Rh5 Qd4 Nh3 g1B Ra5 g2 Ra7 Be6 Ra3 Ne7 Ra6 Nc6 Ng5 Na7 Rd8 Bd6 Rc6 Rf8 Bb2 c1R h8Q c2 Rc5 Rb1 Ra5 c1R Qg7 Rc2 Qh7 Kb3 Ba3 Qa4 b8Q+ Bb6 Rd5 g1R Nh3 Rg5 Rc8 Re5 Bg2 f2+ Kf1 Bd7 Bb2 Be6 Bc3 Ka3 Qb7 Bd8 Rb5 Bh4 Bd5 Bd7 Kg2 f1B+ Kg1 f3 Ba5 Be1 Nf4 f2+ Kh1 Bfh3 Bc7 f1B Bb3 Bhe6 Nd5 Bfh3 Qb6 Bhf5 Qf2 Be4+ Qg2 Bc6 Ne3 Bf3 Bd5 Qb3 Rc5 Ba4 Rc4 Be4 Rb8 Bf3 Rb5 Rcb2 Rbb4 Nc8 Qd3 Ra6 Rg4 Rc1 Rg6 Bg3 Bb6 Bc6 Rg8 Na7 Rb1 a1R Rh4 Ka2 Qh7 Ba8 Bc4 Bfc6 Rg5 Rc3 Rc1 Rbb1 Bc7 Kb2 Bd5 R1a5 Rf5 Ba4 Qc2+ Ka3 Rg1 Rcc5 Qc4 Qd1 Re4 Be1 Rd4 Rg8 f8Q Rg6 Qff7 Rf6 Re4 Rcb5 Rh4 R5b2 Re4 Rc2 Qc6 Bf8 Ba2 Bc4 Qce6 Bd6 Rg4 Bd3 Bd5 Bc4 Rgf4 Ba2 Bb3 Rac6 Rg4 Rca6 Rc4
NR2r2k/b2RrQ1b/BbPq1Bq1/1K1b2B1/1P1Q1rr1/4n3/1q3R2/2qR4 b - - 0 1 illegal: No possible last move, all moves rejected
r5nN/B1Q3bb/r1QQq1QR/6Br/P2pn1b1/4P2k/1q3B2/N1bb3K b - - 0 1 legal: proof: b4 c5 bxc5 a5 a4 h5 g4 e5 d4 exd4 gxh5 f5 e3 f4 Kd2 f3 Be2 fxe2 Ra2 Rh6 Rb2 Rh8 Rb4 axb4 Ke1 Ke7 c4 Ke6 h4 Kf5 f4 Kg4 Kf2 g5 Kg2 b5 f5 d5 f6 b3 f7 b2 c6 b4 c7 b3 c5 d3 h6 d2 h5 Bg7 f8Q Ne7 h7 Bb7 c8Q+ Nf5 h6 Na6 c6 Qd7 c7 Ne7 Nh3 Qe6 Qf6 Nc5 Na3 b1Q Nc2 b2 Na1 Ne4 Qg6 Ng8 Nf4 Ra6 Qd7 Bc8 Qc6 Qc2 Rh2 b1B Kh1 Qb2 Rh5 Bd7 c8Q Kg3 Q8b7 e1B Qbc7 g4 Rh2 Qb8 Ba3 Qb2 Bc5 Bd3 Ba7 d4 Qb3 d1B Qbd5 Bd2 Qdd6 Bc1 Rh5 Ngf6 Rh4 Re8 h8B Ra8 h7 Ng8 Rh5 Bh6 Bf6 Bg7 Rh6 Bb1 Nh5+ Kh3 h8B g3 Bh4 g2+ Kg1 Bf8 B8f6 Bg7 Be7 Qf7 Bef6 B7g4 Bf2 Qe6 Bg5 Nc5 Qf6 Bh7 Qff7 Ne4 Qdd8 Bgf5 Qdd6 Kg4 Kh2 g1R Nf4 Rh1+ Kg2 Rh3 Ng6 Rh5 Kg1 Kh3 Kh1 Bfg4 Nh8 Qbb3 Qfe8 Qb2 Qg6
B4BR1/1n1q2Q1/1Nb3r1/b1P4q/k1N1qrP1/2q2q2/1QnNp3/bK2BN2 b - - 0 1 legal: proof: f4 f5 d4 h5 b4 c5 g4 cxd4 a4 b5 Ra3 h4 axb5 g6 Rg3 hxg3 e4 g5 exf5 gxf4 Kd2 a5 h4 e5 c4 d5 Kc2 Kd7 f6 g2 h5 f3 b6 Kc6 f7 f2 h6 e4 b7 d3+ Kb2 e3 h7 d4 Qe2 d2 Ka2 d1Q Ba3 d3 Nh3 g1Q Bg2+ Qd5 Rh2 f1Q Be4 d2 Qd3 e2 Qe3 a4 Qd3 Qg3 Bc1 a3 Qd4 Qa4 Nf4 d1Q Qb2 Ne7 Bd2 Qc3 Ng2 Nf5 Be1 Nd6 Nd2 Bd7 Ne3 Rg8 h8Q Rg6 Qg7 Na6 Rh8 Qf3 b8N+ Kb6 b5 Ka5 b6 Nb7 Rg8 Bb4 f8B Bc6 Nd7 Qh5 c5 Qdc2 Bf5 Qce4 Nef1 Qd1 Be6 Ka4 Bd5 Ba5 Ne5 Rd8 Nec4 Rd7 Qf6 Rf7 Qd4 Rf4 Qg7 Qdc2 Ka1 Q2d3 Ka2 Nb4+ Ka1 Nd6 b7 Nc2+ Kb1 Qdd4 b8N Nb7 Nd7 a2+ Kc1 a1B Kb1 Bb5 Bc6 Qd6 Nf6 Qd7 Nd5 Nd8 Bb7 Bc6 Ba8 Nb7 Ndb6+
5B2/2Q5/n3b1Np/1B1b2QK/2nB1P1Q/P1r1nn2/BnbRq3/rq2k1R1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 Ba3 axb4 Bc1 d5 cxd5 g4 h4 Bd7 Na3 Be6 Nb5 Bf5 Nd4 Ra6 Ndf3 gxf3 g4 Ra4 g5 Bh6 g6 Bg5 hxg5 Ra8 Be2 Bh3 Bf1 Bc8 Kf2 Kd7 Kg3 Kd6 Kh4 Kc5 g7 Kd4 d3 Kc3 d6 e5 d4 b5 d5 c5 d7 f2 d6 c4 Qg4 b3 Qg3+ e3 Rb1 h6 Qh3 b4 Nf3 e4 Rg1 b2 Ra1 b1B Nh2 b3 Rg2 b2 Qf3 Bc2 Kh5 b1B g6 Ne7 g8B Qe8 d8B Nf5 d7 Nd6 Be6 Na6 Ba3 Kd2 Bc7 e2 d8Q e1N Ba5+ c3 Bf7 e3 g7 e2 g8Q Be6 Rg5 Nd3 Qc7 e1N Qg3 Nb2 Bb6 Ndc4 Bf8 Nf3 Qh4 Ke1 Ng4 Be4 Qg6 c2 Bd4 c1Q Ne5 Bbc2 Rg3 B4d5 Qgg5 Qb1 Ng6 Ra7 Bd3 f1N Be2 Nfe3 a3 Rg8 Bd3 Rb7 Ra2 Rb3 Bf1 Rc3 Bd3 Nce5 Bb5 Rg7 Ba4 Qb5 Bg8 Qe2 Bb5 N5c4 Ra1 Qc1 Bf6 Bc8 Ne7 Nce5 Rh3+ Kf1 Qf5 Ba8 Ba2 N5c4 Bd4 Rg1 Rg3 Bd5 Ng6 Bce6 Qfg4 Qce1 Rd1 Kf2 Rd2 Qa1 Bc6 Rd1 Bb5 Ke1 Bb3 Qa2 Qf5 Ra1 Qfg5 Qb1 Ba2 Kf1 Bfc5 Kf2 Bf8 Ke1 Rg1+
1kn1b3/2r2qBB/2BrNRP1/1P1N1Q1r/1n4r1/N6N/1n1prQ2/1K3b1q b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 g5 a4 b5 axb5 e5 f4 gxf4 b4 Nh6 g5 Ng8 Ra2 Be7 g6 Bg5 Ra3 e4 Rf3 exf3 hxg5 Qf6 Rh3 Qe7 Rh1 Qd8 Kd2 d5 e4 Kd7 c4 Kc7 Kc2 f5 c5 h5 c6 a5 e5 a4 g7 a3 e6 d3+ Kd2 d4 e7 f2 e8Q f3 g6 h4 Qe4 a2 Na3 a1R Nb1 h3 Qd5 f4 Qh5 h2 Qe2 R1a4 Na3 Qf8 Nc2 R8a6 Qh7 Qf7 Kd1 d2 Na3 Bd7 Kc2 d1N Qh5 d3+ Kb1 d2 Qf5 Be8 Bb2 Rh5 Bg2 f1R Qf2 Ne7 g8B Re1 Nh3 Re2 Bh7 Nc8 Rf1 h1Q Bg7 Nb2 b6+ Kd6 b7 Kc7 Qe3 f2 b5 f3 Qa7 Rg4 Qd4 Nd7 b8N Nf6 Nd7 Nd5 Nc5 Kb8 Ne6 Nb4 c7+ Ka8 Rc1 f1B Qf2 Rd6 Rc6 Kb7 Qg1 f2 Qh2 Ne7 c8N Kb8 Nb6 Nc8 Qg1 Rd7 Nd5 Rc7 Bf3 Bg2 Qd1 f1R Qe1 Rff2 Ra6 Bf1 Be4 Rf3 Qf2 Rd3 Ne7 Rc5 Nc7 Qg8 Rf6 Rd6 Ne6 Rc7 Bc6 Qf7 Nd5
nk1N1QQ1/8/2r1PKpn/r3B3/2r1PBN1/3Qqb2/2n1r2q/RBb3Br b - - 0 1 illegal: No possible last move, all moves rejected
b3N3/2KN1nbN/1r1pPB1b/5Rr1/2B1kQ1n/Q2N3P/q3rq2/1Qb3b1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 d4 cxd4 g4 h6 Ra3 h5 Rf3 fxg4 f5 h4 Rf2 h3 Rf4 exf4 Nxh3 Kf7 Ng1 Ke8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 g5 h3 a5 b6 f3 Kb5 g3 c4 g2 b7 a4 f6 f2 c5 d3 c6 g4 f7 g3 c7 d2 Kb6 d6 b5 a3 Qg4 d1R Bh6 a2 Nd2 a1B Ne2 g1B Nf4 g2 Be2 Re1 Bc4 Nc6 b8N Re2 Bg5 Bh6 f8N Ra5 Nh7 Bb7 Nd3+ Kd4 Rh2 f1Q Qf4 Ne5 Bf6 Ne7 Nd7 Qa8 c8Q Ng6 Kc7 Qf2 b6 Nh4 Rh1 Bd5 Qa6 Rb8 b7 Bh2 Rb1 g1B Rb5 Bb2 Rc5 Bc1 Qa7 Rb5 Qa3 Rg8 b8Q Rg5 Qb6 Rb2 Qbb3 Bg7 Qba2 Rb6 Qb1 Qg8 Bd8 Nf7 e5+ Be4 Be7 Qa8 e6 Qa4 Bd8 Qb3 Rf5 Qa2 Qe5+ Ke3 Bf6 Bh6 Qg3+ Bf3 Qg4 Ba8 Ne4 Be5 Qf4+ Kd4 Be7 Beg7 Nef6+ Be4 Qg4 Ke3 Ne8 Ba8 Qg3+ Kd4 Bf6+ Ke4 Qf4+
K4R2/Q2P1nr1/1b2q2q/qk4Q1/1r1B2Qp/BN1bb3/BPb1R1Qb/2n5 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 Na3 gxh4 Nc4 exf4 e4 Ba3 Ne3 fxe3 Ke2 Bd6 Ke1 Bf8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 h5 d4 f5 g4 c4 b6 a4 g5 c3 d6 Kc6 b7 e2 d7 e1B g6 c2 g7 a3 Bh6 c1B Be2 f4 Ke6 f3 e5 f2 Bc4 f1B Nf3 a2 Be3 h3 Nd2 h2 Nb3 Bf2 Qg4 Nh6 g8Q Na6 b8Q Nb4 Qa7 Rh7 Q8g5 Bd3 Re1 h1Q Re2 Nf7 Rb1 Bd2 Rf1 Qa5 Bd5+ Kb5 Qg2 Ba6 d8B a1Q Kd7 h4 e6 Rg7 e7 Qc1 e8Q Qh3+ Qe6 Bc2 Qeg4 Na2 Be7 Rb8 Ba3 Bd6 Be6+ Be5 d5 Bh2 Bd4 Rb7+ Kc8 Bde3 Q5f5 Qcd2 Qfg5 Nc1 d6+ Be5 Nc5 Bh2 d7 Bfg1 Ba2 Bgf2 Q4e4 Qe6 Qeg4 Bfg1 Be5 Qdd6 Nb3 Qh6 Rf5 Qde6 Rff2 Bb6 Rf6 Bge3 Bd4+ Ka4 Rf1 Bad3 Rf4 Nd8 Rf8 Nf7 Qd8 Kb5 Qf6 Rc7+ Kb8 Rc4+ Ka8 Rb4 Qfg5+
1Qr2Nn1/nBP2qq1/1q6/1qq3b1/2QRN2n/pPK5/3Q3R/1rQ2Rkb b - - 0 1 illegal: No possible last move, all moves rejected
q1Nr1Q1B/1Pnr1QK1/1rbbr1n1/N1PQ3r/R1B2q2/1p3k2/6N1/1b1N4 b - - 0 1 legal: proof: b4 c5 d4 cxd4 g4 f5 a3 h5 gxh5 b6 Ra2 b5 Rb2 f4 Rb3 f3 a4 bxa4 exf3 axb3 f4 Nf6 f5 Ng8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 Kg6 a5 h4 d5 c4 e5 f4 d3 f6 d4 h6 a4 f5 a3 b5 d2 h7 a2 c5 a1Q f7 d3 b6 Bd7 f6 Bd6 f8N Bc6 b7 Na6 f7 Qd4 h5 Nc7 Ne2 Kf3 h6 e4 Nbc3 e3 Bb2 Qf4 Ne6 Qf8 Rg1 Rd8 Rg4 Rd7 Ba1 Qa8 f8Q Rd8 Qf5 Ne7+ Kf7 g5 Kg7 Rd7 Qf7 Ng6 Rh4 g4 Nd8 g3 Rg4 Be4 Nc6 g2 Na5 g1R Rh4 Rhd8 h8Q Bc6 h7 Rg5 Qf8 Re5 h8N Rh5 Qe1 d1B Qd2 Bc2 Nd1 Bb1 Bb2 Qf5 Nf4 e2 Ng2 e1R Ra4 Re6 Qg5 d2 Bc4 Qf4 Qd5+ Be4 Nde3 d1R Ba1 Nh4 Ng6 Rf1 Ne7 Ng6 Nc8 Rfh1 Qd2 Bb1 Nd1 R1h2 Kg8 Rh1 Bh8 Rhe1 Kg7 R1e4 Bb5 Rb4 Bc4 Rb6 Qd5+
r1Nn2bn/P1q1rP2/2n4Q/4BNK1/1k1n4/Q2R2Nb/2npq1NR/1b3R2 b - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 f4 c5 e4 cxd4 e5 f5 gxf5 e6 Bh3 Be7 Bg4 Bf6 exf6 hxg4 Kd2 b5 a4 d5 c4 Kd7 h4 Kc6 c5 g5 h5 d3 Ke3 e5 a5 e4 a6 g3 h6 d4+ Kd2 g4 h7 b3 f7 b4 f8Q Kb5 f6 b2 f7 b3 c6 e3+ Ke1 d2+ Ke2 d3+ Kf1 e2+ Kg2 Qc7 a7 Nh6 Qf1 d1Q f5 d2 Qa3 Re8 h8R Re7 f8N Nf7 f6 Nd8 f7 Bd7 Qf4 e1N+ Kf1 g2+ Kf2 Bf5 Kg3 Qe2 Kh4 g3 Kg5 Bh3 Rh2 Nc2 Nf3 g1N Ng6 g2 Nd4+ Kc4 Nc3 b1B Ne4 b2 Nh4 Nf3+ Kf6 g1N Ng3 Ne5 Ndf5+ Kb5 Qh6 Ngf3 Ng2 Nfd4 Kg5 Ng6 Re8 Nh8 Rf8 Qd6 c7 Nbc6 c8N Qc7 Re8 Ba2 Rf8 b1B Bb2 Bc4 Rg8 Bd3 Rg6 Be4 Re6 Bd3 Re3 Be4 Rd3 Kc4 Nfh4 Bh7 Nhf5 Bg8 Bc3 Ba2 Rf1 Bb1 Bb4 Kb5 Bd6 Kc4 Be5 Kb5 Qa1 Kb4 Qa3+
1n1Q1br1/nb2N2q/1R1bqkq1/B2R3n/2N1r3/1PK1bp1P/Q5Q1/3R3Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 e4 Ke7 d4 g5 Kd2 f5 e5 a5 b6 c5 h3 a4 e6 g4 b3 a3 b7 a2 d6+ Kf6 d5 f4 d7 c4 e7 c3+ Kc2 f3 e8Q Ne7 d6 Qb6 d8R Nec6 d7 Rh4 Na3 Na7 Qf1 Qe6 Rb1 a1Q Kd3 c2 Bd2 c1B Ba5 Bf4 Rd1 Qb1+ Kc3 B4d6 Ne2 g1B Nf4 g2 Ng6 g3 Nc4 Be3 Ne7 g1N Qg2 Qh7 Rd5 Re4 Qa2 g2 Rb5 Nbc6 b8Q Bb7 Qc7 Nb8 Rb6 Rg4 Qh5 Re4 Qg4 Ne2+ Kd3 g1Q Qg2 Bdc5 Qch2 Ng3 Kc3 Qb1 Rd1 Nh5 Rd5 Qg1 Qgh1 Qgg6 Qh2g2 Bd6 Rc8 Na6 Rcc5 Rc8 d8Q Nb8 Rd1 Bg7 Qd7 Rg8 Rcd5 Bf8 Qd8
2qq2b1/N2r3B/r1n1r3/b2kbp2/Q1qR4/1QPNQ1R1/1rP3K1/2Q3nR b - - 0 1 legal: proof: f4 b5 g4 c5 a4 e5 axb5 exf4 g5 c4 g6 c3 dxc3 hxg6 Be3 g5 Bf2 g4 Bg3 fxg3 h4 Ke7 e4 Ke6 b4 a5 b6 g5 b7 f5 b5 d5 b6 g2 Kf2 d4 e5 g3+ Kf3 d3 h5 d2 h6 g4+ Ke2 a4 h7 a3 Qc1 d1R Rh6+ Kd5 e6 a2 e7 Bg7 e8Q Be5 Rh4 Ra6 Rh6 Nf6 Nd2 Nc6 b8Q Ne4 b7 Ng5 Qa7 Be6 b8Q Nf3 Rh3 Bg8 Qe3 Qc8 Rb1 a1Q Nc4 Qa4 Nb2 Qc4+ Nd3 Qd8 Rb4 Qc8 Qa1 Rb1 Qc1 Rb2 Qa4 Qd8 Ke3 Qc8 Ne2 g1R Nd4 g2 Qb6 g3 Nb5 Qd8 Be2 Rd1 Na7 Qc8 Bf1 g1Q+ Ke2 g2 Rg3 Qh1 Kf2 Qhh4 Be2 g1B+ Kg2 Bf2 Qb3 Bg1 Qbe3 Qhd8 Bf1 Bf2 Be2 Ng1 Bh5 Rd2 Bg6 Rd1 Qg5 Bb6 Qge3 Ba5 Ra4 Bf7 Rb4 Rf8 h8R Bg8 Rh1 Rf6 Bh7 Re6 Qf7 Rf1 Qa4 Rf4 Qb7 Rg4 Qf7 Rg7 Qb7 Rd7 Qb8 Qc5 Rc4 Qd4 Qbb3 Qc5 Rcg4+ Qc4 Rd4+
3nrn1R/Bb2R1bQ/1b1PP3/qnQ5/n1p5/2q1r2N/1R3Rkq/KN3N2 b - - 0 1 illegal: No possible last move, all moves rejected
1K2b3/1b3r1p/4n1R1/1r1Nn3/3qrRP1/P2R1NQ1/k4bBq/2QRqQb1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 g5 h4 gxh4 d3 f5 exf5 a4 b4 axb3 Na3 b2 Be3 Ra5 Rc1 Ra8 Rc2 b1Q Bd4 Qc1 Ba1 Qxa1 Kd2 Kd7 Ke3 Kd6 Ke4 c5 f4 e5 g4 b5 f6 b4 f5 b3 d4 c4 f7 c3 f6 h3 Bc4 h2 Qe2 b2 Qe3 b1B Qf4 Bb7 Bb3 Ra5 Qf3 Nc6 Qg3 Nge7 Nf3 Rb5 Rd1 h1Q Rd3 Bg7 f8R Ng6 f7 Qh2 Re2 Bc2 Nb1 Nf4 a3 Ne6 Rd2 Bh6 Rd1 Be3 Rg8 Qa5 f8R Bg1 Rf4 Qb2 Rg5 Rf8 Rg6 Rf7 Ba2 Ba4 Bb3 c2 Nc3 Kc7 d6+ Kb6 d5 Kc5 d7 c1B d8Q Bce3 d6 Bef2 d7 Qa1 Bc2 Kc4 Qf6 Qb4 Kf5+ e4+ Nd5 Qe1 d8Q Qd4 Qc8 e3 Qc7 e2 Qc8 Rc7 Qf7 Ne5 Kf6 Rc6 Ke7 Rcc5 Kd6 Rc7 Qa8 Re7 Qf5 Rf7 Qc8+ Rc5 Qc7 Bb5 Ba4 Be8 Bc6 Rb5 Qc8 Qc3 Qf6 Kb3 Qc7 Ka2 Qc8 Ba6 Ba8 Qa5 Qc1 e1R Bb7 Re4 Ba8 Rf8 Qf5 Qe1 Bb7 Ng5 Kc7 Ne6+ Kb8 Rf6 Qh5 Rf7 Qhh3 Ra5 Bc6 Bb7 Qf1 Rb5 Nb6 Re3 Nh4 Rb3 Bg2 Re4 Nd5 Rb5 Nf3
1R1qQ1Bn/4P1n1/2Pn1q1Q/B2bQNp1/2k1B3/1Br1b3/7r/r1nK1N1q b - - 0 1 legal: proof: f4 b5 h4 c5 d4 cxd4 a4 Ba6 axb5 Bb7 f5 Bc8 f6 exf6 g4 g5 hxg5 Bc5 g6 Be7 g7 Bf8 b4 Ne7 g5 Na6 g6 Ng8 Ra3 Nb8 Rg3 Bd6 Rg4 Bf8 Rg5 fxg5 c4 Ke7 e4 Ke6 b6 f5 b5 a5 b7 d5 e5 h5 b6 d3 c5 a4 c6 d2+ Ke2 f4 Ba3 h4 Qe1 d1N Nf3 d4 Be7 Kd5 e6 h3 Ne5 a3 Ng4 f3+ Kd2 h2 Qh4 d3 Nf2 a2 Bb4 a1N Ba3 Bc5 Qf4 Nf6 g8B Ne8 g7 Nd7 b8Q Nb2 b7 Nb3+ Ke1 Ne5 e7+ Be6 Bf7 Ng6 Qf6 Nc4 g8B Ng7 Qc7 Ba7 Ng4 Be3 Bb4 Ra3 Nd2 Rh6 Qd7+ Nd6 Qe8 Nh8 Ba5 Rh3 Rg1 h1Q Nh6 Rh2 Rg4 Kc5 Rb4 Bc4 Bg6 Bd5 Be4 f2+ Kd1 Nc4 b8Q Nc1 Qbe5 Nd6 Rb8 Ra1 Nc4 d2 Kc2 d1R Nd2 Ndf5 Be2 f1Q Bc4 Nd6 Bb3 Qf5 Qfg6 Qe6 Nf5 Qf6 Ra8 Kb5 Qh6 Kc5 Bg2 Kb5 Nf1 Rd3 Rc8 Rc3+ Kd1 Kc5 Be4 Kb5 Rb8+ Kc5 Bbc2 Kc4 Bb3+
nq4Qr/R2P1qb1/1B6/pR3N2/krB1BRK1/2Bb4/1r2P2q/nn1q2Q1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 cxd5 e5 h4 exf4 Na3 gxh4 Nc2 Qc7 axb5 Kd7 b6 Qd8 b5 Ke8 Nb4 cxb4 Kf2 Kd7 Kf3 f5 d4 a5 g4 h5 b7 h3 d6 h4 g5 b3 g6 b2 b6 Kc6 d5+ Kb5 d7 b1N g7 h2 d6 h3 Ba3 Nf6 g8B Ne8 Bd5 Bg7 Qc1 Na6 b8B Ka4 b7 Nec7 Bg8 Nb4 Bd5 Nc2 Ba7 Rb8 Bf7 Na8 Ra2 Na1 Bc4 Qf8 d8Q Be6 Ba6 Bc4 Bg2 Bd3 Bc4 Qe8 Bb6 Qf7 Kf2 f3 Kg3 f4+ Kg4 f2 Nf3 f1R Nd4 f3 Nf5 f2 Be4 Qc7 Rg1 h1Q Qg8 h2 d7 Re1 Rc2 f1Q Bb2 Rd1 B2d4 Rd2 Bc3 Qf2 Rg3 Qd1 Rf3 h1Q Rf4 Qhh2 Rb2 Qd8 Rb5 Rb2 Qe3 Qe8 Qg3 Qf7 Qg1 Qc5 Rf2 Qcc7 Rf4 Re8 b8R Qc8 Bed5 Re4 Rb7 Qb8 Ra7 Rd4 Ba2 Rc4 Be4 Rcb4 Bc4
1kb1r2q/1PQ1n1R1/P1Q5/2p3Qq/QRn1q2N/3BN1Kb/1rn3b1/1R4b1 b - - 0 1 legal: proof: b4 a5 h4 f5 e4 g5 exf5 gxh4 c4 d5 cxd5 Qd7 a4 Qd8 b5 b6 Qb3 Kf7 Qb4 axb4 a5 b3 a6 Bg7 Bb2 Bf8 Bc3 Ke8 Ba5 bxa5 f4 Kd7 Kf2 c5 d4 Kc7 g4 h5 f6 e5 g5 e4 g6 h3 f7 e3+ Kg3 h2 g7 e2 f5 a4 f6 b2 Nc3 b1B Nd1 a3 Ne3 a2 Nf3 Nc6 b6+ Kb8 b7 Na5 d6 Bbf5 d7 Bh3 d5 Nc4 d6 Ne7 g8R Bg7 Rb1 a1N f8Q Nc2 f7 Bd4 Rg7 Rh7 Rg1 h1B Rb4 B1g2 Nh4 Qe8 d8Q e1Q+ Kf4 Rh6 d7 Rb6 Bd3 Qe2 Qh8 Qe1 Qh7 Qh8 f8Q Qd1 Qf6 Qf3+ Kg5 Qe4 Qe8 Rb5 d8Q Rb6 Nhf5 h4 Rgb1 Rb5 Qfc6 Rb6 Nd1 Bg1 Nde3 Rb5 Ra4 Rb2 Rb4 Bg4 Qdd5 h3 Kh4 h2 Kg3 h1Q Nh4 B4h3 Qg5 Bf5 Nf3 Qh5 Nh4 Be6 Qa4 Beh3 Qec6 Bcf5 Qhg6 Ka7 Qc7 Re8 Qgc6 Bc8 Qd8 Kb8 Qdc7+
r6N/QP1Q1nP1/R3r2q/1pqr4/B1n2N2/Q3bqRq/Kb2Rk2/4n2Q b - - 0 1 illegal: No possible last move, all moves rejected
6b1/Q2b1N2/1p4K1/b1Br2n1/k2PnbbP/br2Q2Q/1RBQ1n1B/5N1q b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 h5 e4 g5 a4 Bh6 g4 Bf8 Ra3 f6 Rg3 f5 exf5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Ke2 Kd7 Kd3 e5 Ke4 c5 d4 f3 h4 c4 a5 g3 a6 b6 d6 Kc6 d7 Kb5 a7 g2 f6 f2 Kf5 b3 f7 e4 g6 b2 g7 e3 Nf3 g1N Qd2 e2 Kg6 e1B Qc2 Nf6 g8Q Na6 Ng5 Ne4 Nd2 b1B Bg2 f1B Nh3 c3 Kf5 Ba2 Qd3+ Ka4 Qf3 c2 Qgg3 Nac5 Kg6 Bb5 Rh2 Ne6 Nf1 N6g5 Qe3 Ba3 f8B Bg8 Bc5 Rh5 Bd2 Qe7 d8Q c1B Qd5 Bbd7 Qa2 Qe5 Bf3 Qd5 Bd1+ Kb5 Re2 Bg4 Rg2 Bcd7 Bc2 Rf8 a8Q Rf3 Qa7 Qa8 Nf4 N1h3 Nd3 Nhf2 Ne5 Qd5 Nf7 Qb7 Qef4 Rb3 Qh3 Qd5 Be3 Ba5 Bd2 Ka4 Qfe3 Nc3 Rh2 Qh1 Be1 Nce4 Qb2 Nd3 Bg3 Bd2 Re2 Ndf2 Bh2 Bc1 Qef3 Bf4 Qe3 Nh7 Qbc1 Rd5 Qcd2 Nhg5 Re1 Bd6 Rb1 Bf4 Rb2
5r1B/QnnB4/NbnN2b1/Q1pP4/2KB1kPr/2n2r1R/2n3Q1/1r1q3B b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 d4 Kd7 Kd2 Kd6 Kd3 h5 g4 f5 e4 f3 b7 f2 b6 b3 Bg5 f4 Rh3 b2 Qe2 f3 Rh1 h3 Bd2 h2 Nc3 b1N Be3 h4 Na2 h3 Qe1 Nf6 Qd2 Bf5 Ne2 Nc3 Bg2 f1R Nb4 f2 Na6 Ne8 Ng3 Nc6 b8B Rh4 b7 Bg6 Kc4 Rb1 Bf3 f1N Qg2 Bh6 Bg1 Be3 Ba7 Rb3 b8Q Ra3 Bb6 Bf2 Qa7 Ne3+ Kd3 Nc2 Kc4 Rb8 Ba5 Rb1 Bb6 Rh8 Ba5 Rf8 e5+ Ke7 e6 Kf6 d6 Kg5 e7 Kf4 d7 Be3 Bf2 Rab3 Rc1 h1N Ne4 h2 Nd6 Ng3 Rh1 Nge4 Bb4 Nc5 d5 Qa8 d8Q Nb7 Bg1 Bb6 Bd4 Qc8 Be4 Qe6 Bf3 Qe1 Bh8 Qd1 Bc5 Ra3 Bcd4 Rab3 Re1 h1R Re3 Rh6 Be4 Rh4 Rh3 N6b4 Qda8 c5 Qd8 Nc7 e8B Nc6 Bd7 Qf1+ Qe2 Qd1 Bh1 Ne4 Qg2 Rf3 Qe8 Nc3 Qe1 Ne4 Qb4 Nc3 Qa5
1K3b2/1BP2P2/Q1r5/2n1k3/b1Q3Bp/1b5r/bQR1bBQn/q1qN1b1R b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 Nc3 cxd4 Nd5 Ra7 axb5 Kf7 b6 Ke8 b5 Ra8 Nb4 axb4 Ke2 Kf7 Kd3 Kf6 Kc4 d5+ Kc5 h5 c4 h3 f4 b3 g4 h2 g5+ Kg7 g6 Kf6 b7 h4 g7 d3 b6 d4 Bg2 b2 Qb3 b1B Be3 d2 Ne2 d1B Ra2 d3 Rc2 d2 Nc3 Be2 Nd1 Nh6 g8B Be6 Bf2 Nd7+ Kc6 Ng4 b8Q Ba2 Kb7 Rh6 c5 Ra3 Qc4 Rh3 c6 Qc7+ Ka8 Nc5 b7 Bd5 Qc8 e5 b8Q e4 Q8a6 e3 Be6 Bf1 Bf3 e2 Qb2+ Qe5 Ka7 e1Q c7 Bc6 Kb8 Ba4 Bb7 Rg6 Rg1 h1B Bd7+ Bhc6 Rh1 Nh2 Bdc8 B4b3 Be6 Ke7 f6+ Kd6 f7 Qd4 f5 Ke5 f6 Bca4 Bg4 Rh6 Ne3 Qc1 Nd1 Qc3 Qa3 Q3a1 Qab4 Be7 f8Q Bd6 Qg7 Bf8 f7+ Rf6 Nc3 d1B Qa3 Bf3 Qb2 B3e2 Qg6 Rc6 Qge4+ Kf6 Qg2 Ke5 Nd1+
nNB2q2/2p5/RPr1n1R1/1KR2rb1/2Rb4/2N2nb1/QnbkPN2/3Q1n2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 f4 e6 f5 exf5 axb5 Qd6 b3 Qd8 Ba3 f4 Bc5 Bb7 Bf2 Bc8 Bg3 fxg3 h4 Kd7 d4 Kd6 Kd2 g5 Kc3 a5 Kc4 f5 h5 g2 h6 a4 b6 f4 b4 g3 b5 f3 b7 f2 h7 a3 Qe1 g4 Nd2 a2 Nb1 Nc6 b8Q Be7 Nf3 g1N Nh4 g2 Nc3 g3 Qb7 Na5+ Kb4 Qf8 Nd1 Nc4 Qa7 Bg5 Nf3 Bf5 Ne5 Nb2 Ng4 Nh3 Rg1 Ne7 Nc3 Bc2 Qd1 Nc8 Qa4 Rg8 h8R Nb6 Rh4 Ra5 Qa3 Na8 b6 Nf4 Rh5 Ke7 d6+ Ke6 d5+ Kf5 Qb3 Rc5 d7 Ne6 d8N Kf4 d6 Rf5 Nc6 Rg6 Nb8 Rgf6 Qbd5 Rh6 Kb5 Rg6 Rb1 a1B d7 Rgf6 d8R Rh6 Nf6 Ke3 Nfe4 Rg6 Rd6 Rh6 Rgh1 g1N Bh3 f1N Rc1 g2 Nf2 Nf3 Rh4 g1B Rc4 Bh2 Rc5 Rh8 Qa2 Rh6 Rg1 Bhf4 Rg4 Bg3 Ra4 Rh4 Ra6 Rc4 Rcd5 Rc6 Rc5 Ng7 Rg6 Ne6 Bg4 Na4 Nce4 Bd4 Nc3 Nb2 Rb1 Na4 Rb4 Nb2 Rc4 Rf4 Rf6 Nd8 Be6 Rf5 Bc8 Ne6 Qdb1 Kd2 Rg6 Qh8 Qba1 Qf8 Qd1+
1n1qQbQ1/K1N1rn1Q/5r2/5bNr/3Qr1B1/2BP2p1/P1b3bN/1k2Rn2 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 Nh6 g4 Ng8 Na3 gxf4 g5 h5 Rb1 Nf6 Rb3 Ng8 Rg3 Nd7 Rg2 Nb8 Rg4 hxg4 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 b3 h4 c4 g6+ Kf6 h5 g3 d6 f3 h6 e4 g7 Ke5 h7 Kd4 d7 c3 f6 f2 f7 b2 Rh2 b1B Rh1 c2 Rh3 e3 Qe1 e2 Nc4 Kd3 Nf3 Ra7 Rh1 Nh6 Bh3 f1N Bb2 c1R g8Q Kc2 Ng5 b6 Be5 Bb7 Bg4 Bg2 Bc3 Rc7 Qf2 e1R Qd4 Re4 Ne5 Rc6 Rg1 Rce1 Nef3 Rf6 Nh2 Kc1 Rh1 Bc2 Rg1 Kb1 Rh1 Ba3 f8Q Nf7 Qe8 Bf8 Rg1 Re7 Rh1 Bf5 d3 R1e4 Rg1 Nc6 Ka6 b5 Kb7 Nb8 Ka7 b4 Rh1 b3 Rg1 b2 Rh1 R7e6 Rg1 Qc8 d8N R6e5 Nde6 Qd8 Nc7 Re7 Qd6 Kc1 Qb4 b1B Qd4 Bc2 Qg7 Rg8 h8Q Kb1 Qhh7 Rh8 Qhg8 Rh3 Q7h7 Rh5 Bd1 Nd2 Re1 Nf1 Bg4+
1qb1B3/2kbQ1qr/5Q2/1nB1n2Q/2rPP3/5pnQ/1B1K2bR/RN3bn1 b - - 0 1 legal: proof: c4 d5 g4 dxc4 f4 g5 h4 gxf4 a4 b5 axb5 e5 g5 Ba3 Nc3 Be7 g6 Bg5 Nd5 f3 Nf4 exf4 hxg5 Qd6 Qc2 Qf6 Qd1 Qd8 e4 Kd7 b4 h5 d3 f5 g7 c5 g6 a5 b6 f2+ Kd2 h4 b5 c3+ Kc2 h3 b7 c4 b6 h2 Ba3 a4 Qf3 Nh6 g8Q Rh7 g7 Na6 b8B Nc7 b7 Nf7 Qe3 f3 Qh6 f4 Bg2 f1B Qg5 f2 Nh3 f3 Bf8 a3 Nf4 a2 Qe5 Ra4 Ne2 Nb5 Qf6 Ne5 Ba7 Kc7 Bfc5 Qe8 Kc1 c2 Kd2 c1N Nc3 Ne2 Qh8 Ng3 g8Q Qd8 Nb1 c3+ Kc1 c2 Qge6 Qg8 Bh3 Rc4 Kd2 c1N Qee7+ Bd7 Bf5 Bh3 Bg6 f1B Be8 Nce2 d4 Qg7 Ba3 Ng1 Bb2 Bf5 Qee6 Bc8 Qee7+ Bfd7 Bc5 Nh3 Rg1 h1B Rg2 Ng1 Rh2 Bhg2 Qf4 Na3 Qfh4 Nb5 b8Q+ Kc6 Qbd6+ Kb7 Qdf6 Kb8 Nc3 Kc7 Re1 a1Q Qh3 Qa8 Ra1 Qb8 Nb1 Rh4 Qh7 Rh5 Q7f5 Rh7 Qfh5
2Q5/Q1Q3k1/2n1pbr1/1r2P3/1Q2Nn2/NP4n1/3Kbr1B/nqRNr1Rq b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 f4 Kf7 c4 a5 h4 d5 e4 g5 e5 a4 h5 g3 b6 e6 h6 d3 h7 g4 c5 d4 b7 a3 f5 a2 f6 d2+ Ke2 d3+ Ke3 Be7 b3 Nh6 c6 Qc7 Rh3 Ra5 Qf1 d1Q Rh4 d2 Ne2 g1R Nec3 g2 Qf3 g3 Na3 Rf8 h8Q Rb5 Rc4 Re1+ Kd3 g1R Qd5 Qh5 Nd1 g2 Kc3 Kg6 f7 Bf6 Rb1 a1N Kd3 Qd7 c7 Nc6 b8Q Nf5 Qa7 Ba6 c8N Ng3 Nd6 Qh1 Ne4 Qc7 Qh4 Kg7 Qd8 Qb8 Qa5 Qc7 Rc5 Rg8 Qf4 Rgf1 Rc4 g1N f8Q+ Kg6 Qd8 Rf2 Qc8 N1e2 Qh4 Nf4+ Kc3 Bh8 Qe7 Bg7 Qeb4 Bf6 Qe3 Rb8 Qab5 Nfh5 Q5a5 Ree2 Qa7 Nf5 Ne3 d1Q Qcb7 Kf7 Rc5 Rg6 Qc8 Kg7 Bd2 Qdf1 Rc4 Qc1+ Kd3 Qb2 Rg1 Re1 Nd1 Qb1+ Kc3 Rb7 Bf4 Bb5 Rc5 Be2 Kd2 Rb5 Bh2 Nf4 Rc1 Ng3 Q5xc7+
3qQ3/2P1np1k/PN2R1br/RB2K1Rq/rb3R2/2n2Qn1/2Nq2n1/4Nq2 b - - 0 1 legal: proof: b4 c5 g4 a5 d4 cxd4 f4 e5 fxe5 h5 gxh5 axb4 a4 Qf6 Bb2 Qd8 Ba3 bxa3 Kd2 g5 Kd3 d5 h4 b5 e4 g4 c4 g3 c5 g2 h6 b4 h7 b3 a5 a2 c6 b2 e6 Nd7 e7 Ra6 h5 Nb6 h6 Nc4 e5 Ne3 Na3 b1N c7 Nc3 Nf3 g1N Rh5 Nge2 Rg5 Ng3 Ne1 Ng2 Nac2 Bd7 Qf3 Bf5+ Kd2 Bg6 Bb5+ Rc6 a6 d3 Rd1 d4 Ra1 Kd7 e8R Bb4 Re6 Ne7 Rd1 Ke8 Ra1 Rg8 h8R Kf8 h7 Kg7 Qe3 Rd6 Qf3 Re8 Rg8+ Kh6 h8N Kh7 Rg4 Rc6 Rf4 Rc4 Kc1 d2+ Kb2 d1Q Kb3 Bf5 Rg5 d3 Ng6 d2 Kb2 Qe2 Kb3 d1Q Nf8+ Kh8 Kb2 Bg6 Nd7 Qed2 Nb6 Rd4 Kb3 Rd6 Kc4 Kh7 Rb1 a1Q Rc1 Qb2 Ra1 Qf2 Ra5 Qf1+ Qd3 Qh5 Qe2 Ned5 Kd4 Rc6 Qf3 Ne7+ Rd6 Qc1 e6 Qd2+ Ke5 Rc4 Rc6 Rh8 Rd6 Kg7 Rc6 Rh6 Rd6 Kh7 Rc6 Nef5 e7 Rd4 e8Q Ne7 Rc5 Ba3 Rd5 Ra4 Rd6 Bb4 Re6
qRQbr2q/bN3K2/2b1n3/3B4/2NP1Q2/3bqpN1/2bQ3P/N1r1B1kr b - - 0 1 legal: proof: f4 b5 b4 d5 a4 g5 g4 gxf4 g5 h5 e3 d4 Kf2 d3 axb5 c5 Ra3 Nc6 Ra1 Nd4 exd4 c4 Ne2 c3 Rg1 cxd2 Rg4 hxg4 Ng1 Ba6 Nf3 Rh6 Bb2 Bg7 Bg2 Bh8 Qe2 Bf6 Nc3 Bb7 Rh1 Rb8 Bf1 Bg7 Qd1 Bf8 Ng1 Rh8 Bc1 Ra8 Nb1 Bc8 c4 Kd7 c5 Ke6 b6 Kd5 b5 Ke4 c6 a5 b7 e5 b8N f5 g6 a4 b6 a3 g7 f3 Kg3 Ke3 c7 e4 b7 a2 Ba3 a1Q Nc6 f2 b8N f4+ Kg2 g3 Ne5 Nf6 g8Q Nh7 Ng6 Bb7 Kh3 f3 Kg4 g2 Kh5 Bc6 c8Q Bc5 Nd7 Ba7 Qc2 d1R Nde5 d2 Bc5 Rc1 Bc4 f1B Qf7 Kf2 Bd5 e3 Nd7 e2 Qf4 e1B Nge5 Ng5+ Kg6 Ne6 Kf7 Bd3 Ne2 d1B Nc4 g1Q Nbd2 Re8 Nb3 Ba5 Qcd2 B1c2 Bb4 Qh4 Bc3 Qh8 Ndc5 Bd8 Nb7 Kg2 Ba5 Qe3 Rf1 Qa3 Na1 Rb8 Rf2+ Kh1 Ng3+ Kg1 Nc5 Rbb1 Nb7 Qee5 Re2 Qb8 Re5 Qa8 Rg5 Qb3 Rg8 Qc3 Qe2 Qb3 Be1 Qc3 Qd1 Qd2 Rf8 Qe3 Qd2 Ba5 Qcb8 Rd8 Qfc7 Rd1 Qd7 Rbc1 Bf2+ Kg2 Qdc7 Rh1 Be1+ Kg1 Qf4 B5b6 Re8 Bc7 Re7 Rg8 Re8 Bcb6 Rd8 Re8 Qbc7 Ba5 Rb8 B5b6 Qd7 Bd8 Qc8
nB3kQ1/r2Prq2/2qq1qQn/6N1/4Bn2/N4R1P/p3bBq1/1B2KN1r b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Qc2 Bd6 Qd1 Bf8 b4 h5 Ba3 f5 Bc1 f4 Ra6 Be7 Rg6 Bd6 Rg4 hxg4 Qa4 f2+ Kd1 f3 Kc2 Bf4 gxf4 Bb7 Kb2 Rh3 Qd1 Rh8 Kc2 Bc8 e4 a5 d4 c5 Kd2 g5 e5 a4 e6 g3 b6 g4 d5 a3 h3 a2 e7 g2 b5 g3 b7 Na6 b8Q Qd6 b6 Nh6 f5 Ra7 f6 Rh7 b7 Nc7 Qc2 Na8 Qc7 Bg4 Bd3 f1Q b8B f2 Na3 Be2 Nf3 g1Q Be4 g2 Nh2 Kf7 e8B+ Kf8 B8g6 Re7 f7 c3+ Ke3 c4 Bf5 Qd1 Nf1 Qf6 d6 Qd5 d7 Qdd6 Qc6 Qgh2 Qd3 c2 Kd2 g1N Bb2 c1R Bd4 Qg2 Qc2 Kg7 f8N Rb1 Nh7 c3+ Ke3 Rd1 Ng5 Kf8 Qb1 c2 Bg6 Re1 Kd2 Bg4 Bh7 Ne2 Qcb6 Nf4 Rg1 Qh1 Rg3 Be2 Rf3 Qg2 Bhf5 Qf7 Qc6 Qc5 Qg6 Qd6 Ng3 f1Q Qh7 Qfg1 Nf1 Qdf6 Qb6 Q1h2 Bf2 Ra1 Qb1 Qhg3 Ke1 Q3h2 Qd1 c1Q Bb1 Qc7 Bfe4 Qcc6 Qd5 Qhg3 Qdf5 Q3h2 Qfg6 Qhg3 Rc3 Qd3 Rb3 Qdd6 Rf3 Ng4 Nd2 Bc4 Kd1 Nd3 Ke2 Ba6 Bc2 Rh1 Bb1 Nh6 Nf1 Nf4+ Ke1 Be2 Qhg8+
3KB1q1/P1R1R1bN/P2Q2b1/4Q3/n2B1Qq1/b3rRp1/1bR1rk2/q2r2b1 b - - 0 1 illegal: No possible last move
2bbQ2K/2n1RP2/P4R1p/k2QRqBr/1bbb2N1/b7/3rr1B1/2B1b2R b - - 0 1 illegal: No possible last move, all moves rejected
b2R2Qq/b1n3n1/P2Qq2P/B1b1RkbR/1b2N3/2B2r2/B1Kp4/b1B4b b - - 0 1 illegal: No possible last move, all moves rejected
2k3q1/1nNr2p1/P1b2R1Q/R2bNb1P/2R2bBQ/4b3/Q1Qn2q1/1bK4b b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Nh3 f5 Ba3 b5 Bb2 f4 Bf6 h6 Bg5 hxg5 Ng1 Ra6 Qb3 Rf6 Qd1 Rf5 gxf5 Ba6 Na3 Bb7 Nb1 Bc8 h4 Kd7 d4 c5 Kd2 c4 e4 g4 a4 b3 e5 g3 d6 b2 a5 f2 h5 f3 d5 g2 f6 b4 a6 b3 f7 c3+ Ke3 c2 Kd2 c1B+ Kc3 Bb7 e6+ Kc8 e7 Be3 e8Q Nc6 Be2 f1B Rh4 f2 Ra5 Nf6 Nf3 g1Q Ne5 Bg2 Qc2 f1B Rc4 Bh1 Na3 b1B Kb2 Qg2 Nb5 Ne4 Nc7 Nd2 Kc1 Be7 f8R B7g5 Rf3 Bgf4 Qeg6 Qg8 Qh6 Nd8 Bd1 Bc6 d7+ Kb8 d6 Nb7 Qa2 Bf5 Rf2 B1d3 Bg4 Bde4 Rf1 Bed5 d8Q+ Bc8 Qh4 Bf5 d7 b2+ Kd1 b1B d8Q+ Bc8 Qdg5 Bcf5 Kc1 Kc8 Qhg6 Rh6 Qh7 Rd6 Qgh6 Rd7 Rf2 Bfe6 Qhc2 Bf5 Rf3 Bb6 Rb3 Bbe3 Rb6 Ba4 Rg6 Bac6 Rf6
2B1bk2/KN3n2/bB1R3n/p1qr1Q1n/6B1/1nP3NP/5Q1b/n1qN2nB b - - 0 1 legal: proof: f4 a5 b4 c5 e4 h5 a4 e5 d4 exd4 g4 hxg4 e5 b5 axb5 Ra6 f5 Re6 Ra3 c4 Rd3 cxd3 fxe6 Qb6 Qe2 Qc7 Qd1 Qd8 Kd2 f5 c3 d5 h3 g5 e7 f4 b6 f3 b5 g3 b7 g2 b6 f2 Nf3 g1N Rh2 g4 Qe2 g3 Rh1 g2 Nh4 Qd6 Nf5 Rh5 Na3 Nc6 b8Q Nh6 b7 Qc5 Nc4 Nd8 Nb2 Ndf7 Nd1 Bg7 Qg4 Ne2 Ng3 g1N Bg2 Nf4 Qa7 Bf8 b8N Ba6 Nc6 f1N+ Ke1 d2+ Kf2 Rg5 Nd8 Nh5 Nb7 Bg7 Qf5 d3+ Ne3 d4 Nd1 Bh8 Rh2 Bf6 Bh1 Bg7 Nb2 d1B Be3 Bb3 Nd1 d2 Rg2 d3 Bd4 Nh2 Ke3 Ba4 Ke4 Nf1 Be3 Qa3 Kd5 Qc1 Kc5 Bh8 Nb2 d1Q Kb6 d2 Rf2 Qf3 Nd1 Qd5 Rf4 Bc6 Rd4 Qc4 Rd6 Qc5+ Kc7 Bd7+ Kb8 Bc6 Qb6 Bf6 Ka7 Bd7 Nb2 d1N Bf2 Nde3 Nd1 Nc2 Bd4 Qc6 Qb2 Nd2 Bb6 Na1 Qbc2 Qc8 Qf2 Nh8 Qcf5 Kf7 e8B+ Kf8 e6 Ndb3 Bg6 Qc5 Bh7 Be8 e7+ Kg7 Bg8 Be5 Be6 N8f7 Bc8 Kg8 Ne4 Bh2 Ng3 Bd7 e8B Kf8 Qh7 Bc6 Bed7 Rd5 Bg4 Be8 Qhf5
2Q1q3/1BQ1qq2/bK3P1B/2N3b1/p2B1n2/2Nr1P1q/1R2rbN1/3kqq1B b - - 0 1 legal: proof: f4 c5 a4 f5 b4 g5 h4 gxh4 d4 cxd4 Ra3 b5 axb5 Nc6 Re3 Ne5 Re4 Nf3+ exf3 fxe4 Kf2 Kf7 c4 Kf6 g4 d5 c5 e5 f5 h5 c6 a5 c7 h3 b6 d3 Ke3 Kg5 b5 h2 b7 d4+ Kf2+ e3+ Kg3 d2 b8B d3 f6 e4 b6 e2 Kf2 Kf4 b7 e1B+ Kg2 Ke3 g5 h4 g6 a4 g7 Ne7 g8Q Qe8 Nh3 Nd5 Qg7 Bf2 Qg4 Bh6 Na3 Bg5 Nb5 Rh6 Be2 Nf4+ Kf1 Ra6 Qc2 Rd6 Nc3 Rd8 Rg1 h1Q Ba7+ Rd4 b8N Ba6 c8B Rh7 Qb2 Re7 Bb7 Qh2 Rg2 Qh1+ Ng1 h3 Qc2 h2 Nd7 Ng6 Qh4 Bg3 Qa2 B5f4 Qd5 Be1 Bb2 d1Q Bc1+ d2 Qh7 Qb3 Qc5 Qbg8 Qh3 Qgf7 Qg3 Bh6 Qc8 Re6 Qgc7 Bf4 Ba3 d1Q Bf8 Kd2 Bh6 e3 Bb5+ Kc1 Rb2 Bg5 Bb6 Qb3 Ke2 Qb4 Nh3 Bf2 Nf4 Qbe7 Ba7 Rd1 Bd4 Qg1 Bd3 h1Q Nc5 Qh3 Bc4 Rf1 Kd3 e2 Bb5 Rd1+ Kc4 e1Q Kb4 Re5 Bf1 Rd3 Ka5 Re2 Kb6 Qgh1 Bg2 Qhf1 Na2+ Kd1 Bh1 Q7d8 Ng2 Qde7 Rb4 Nf4 Nc3+ Kc2 Rb2+ Kc1 Na2+ Kd1 Nc3+
1NR4N/rP3bR1/kp6/P2rr1nb/r2QQ3/bRr1R1n1/1Q1n2K1/1B5r b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 a5 h4 gxh4 b4 axb4 c5 Nh6 c6 Ng8 Ba3 d6 Bb2 b6 Bd4 Qd7 Bc5 dxc5 Qb3 Qd3 Qa4 Qa6 Qd1 Qb7 cxb7 Ra7 Rh3 Ra5 Rh1 Ra8 f4 Kd7 Kf2 Kc6 a4 h5 g4 e5 d4 c4 g5 c3 f6 c2 a5 c1R f5 h3 f7 b3 g6 e4 g7 h2 f6 e3+ Kg3 h4+ Kf3 b2 Nh3 e2 d5+ Kb5 d6 c5 d7 c4 d8Q e1R Qe2 Be6 Qe3 Nc6 Qf2 Ne5+ Kg2 Ra7 Qc7 Ka6 Qd4 Rh5 Na3 b1N Qe7 Nh6 g8R Rc3 Nb5 Nd2 Rb1 Nf5 Bd3 Nef3 Rb3 Ng5 Nf4 Re5 Rg7 Ng3 Re1 h1R Re3 Bg4 Qe6 Ba3 f8Q Rd5 f7 h3+ Kf2 h2 Qee4 Ra1 Bb1 h1B Ng6 Bhf3 Qfe8 Be6 f8R Bf7 Q8e5 Rh1 Nh8 B3h5 Rc8 Ra2 Re1 Re3 Kg2 c3 Qf6 c2 Re2 Rc3 Re3 c1R Qfe5 Rcc5 Qb2 Ra1 Nd4 R1c3 Q5f4 Re5 Nc6 Rcd5 Qf2 Bb4 Qff4 Ra4 Qd4 Be7 Qfe4 Ba3 Nb8+
2QB3K/4N3/BN2q3/PbnQ2r1/1N2k3/n5q1/BRqbqp1P/n1n1Bn2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 a4 h5 Ra3 b5 Rc3 f4 Rc6 Ra6 Rg6 Rf6 Rg5 Rf5 gxf5 Kf7 Rg2 Ke8 Rg4 hxg4 Kf2 Kf7 d4 Kf6 e4 c5 a5 g5 d6 b3 d5 Ke5 f6 c4 f7 g3+ Ke1 b4 Kd2 c3+ Kd3 g4 d7 f2 d6 c2 Na3 b2 Bh3 b1Q Be3 f1N Qe1 b3 Qd1 f3 Ne2 g2 Bd2 g1Q Nc1 f2 Be1 g3 Be6 g2 Na2 b2 Nb4 Bh6 f8Q Qe7 d8B Nd7 Ba2 Ngf6 Nc4+ Kf4 Kd4 c1N e5 Qe6 Qd3 Rg8 Nb6 Nc5 d7 Rg5 Qc4 Bb7 Qd5 Qc2 Qg8 b1N Qh8 Qd6 e6 Ba6 e7 Nfe4 e8B Ned2 Bg6 Bb5 Bd3 Na3 Be2 Ba4 Ba6 Bb5 Qg8 Ne3 Qe8 Qf1 Qe6 Qe7 Qec6 g1Q Qc8 Qg4 Rg1 Qee6 Rg3 Nec4 Rb3 Qfe2 Rb2 Qh3 Be7 Qhb3 d8N Ne3 Ndc6 Nef1 Bd8 Qg3 Ne7 Q6g4 Qe5+ Kf3+ Kd5 Ndb3 Kd6 Na1 Kd5 Nd7 Kd6 Qge4 Ke6 Nc5+ Kf7 Qc6 Qd6 Ke4 Qd2 Rg4 Qd6 Bd2 Qdd7 Qe6+ Kf8 Bg5 Kg7 Bd2+ Kh8 Rg5 Qd5+
4b1b1/3qR3/1Nn1P1b1/B1Q1RN1p/2Rbq1R1/PbQ3Qn/4q3/K1k2rq1 b - - 0 1 illegal: No possible last move, all moves rejected
4b2b/3QPb2/1N1b1P2/1R5b/4p1BB/4n1QB/Q1nqnKn1/N1kq1Qr1 b - - 0 1 legal: proof: e4 a5 b4 b5 c4 e5 cxb5 g5 h4 gxh4 a4 f6 d4 Ra7 b6 Bd6 b5 Bf8 b7 Ra8 Ra2 Ra6 Re2 exd4 e5 f5 Re3 Rc6 Re4 Rc5 b6 Rb5 axb5 fxe4 Qc2 a4 Qb3 Qe7 Qd1 Qd8 g4 Ke7 f4 Ke6 f5+ Kd5 g5 h5 g6 c5 e6 d3 g7 Kc4 Bd2 d5 Nc3 h3 Na2 a3 Qf3 Kb3 Bg5 Kb2 Qd1 d4 Nc3 c4 Be3 d2+ Kf2 a2 Bf4 a1B Bg2 h4 Bh2 d3 Qf1 d1N+ Ke1 Ne7 g8B Nbc6 b8Q Nd5 b7 d2+ Ke2 Bd7 b6 Be8 Bf4 h2 Qa7 h3 b8Q Ncb4 b7 Rh6 Bc7 Rg6 Qe1 N1e3 Kf2 d1B Nf3 Bb3 Nd2 Nf4 Nd5 c3 Qe2 Bc4 Nb3+ c2 Qd1 Bc5 e7 c1N Qaa8 Nbc2 Bf1 Nce2 Be6 Bb4 Bg2 Nf1 Qba7 Qd6 b8Q Nfe3 Rf1 h1B Nb6 h2 Bh3 Qd2 Bd6 Rg7 Qd7 Bf3 Rh1 Bfh5 Qa2+ Kc3 Rg1 h1Q Rg5 Rg6 Qg1 Ba3 Qg2 Qhd1 Qf1 B1b2 Na1 Rg8 Rg6 Bb4 Rf6 Rg1 Rf8 Nfg2 Bg3 Bb3 Bh4 Bc4 Qg3 Bd6 Rg8 Bb3 Rg5 Bd5 Qda7 Bb3 Bc8 Bbf7 Qb7 Q2c1 Be6 Kd2 Qd7 Bh8 f6 Qb1 Bhf5 Qb4 Bh3 Kc1 Beg4 Qd2 Rb5
1rR1r1q1/3Kp3/4Q1b1/1R6/k2BQr2/1RqQqR2/2q1PPB1/1n1Nrb1r b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 Nc3 f5 Ne4 Na6 Nf6+ Kf7 Ng4 Nb8 Ba3 Ke8 Bb2 Ra6 Bc1 Ra8 h4 fxg4 Ba3 g3 Bb2 g6 Bc1 Bg7 Bg2 Na6 Bf1 Bf6 Rh2 Nc7 Rh1 Ne6 gxf6 g5 Rh3 g4 Rh1 Ng5 hxg5 Qc7 Bg2 Qb6 Bf1 Qd8 Kd2 b5 Kd3 h5 Ke4 d5+ Ke5 Kd7 c4 Kc6 a4 g2 a5 g3 a6 d3 c5 h4 g6 h3 f7 h2 f8Q d4 g7 b3 a7 d2 Qf4 b4 Qh4 Kb5 c6 d3 c7 b2 Qf4 b1B Qf6 b3 Qg5 b2 Ra3 Nf6 g8Q Nd5 Q5g6 Nc3 Nh3 g1R Q8f7 Rf8 Qfg7 Rf4 Qh8 Qg8 Ng5 Bh3 Qf5 Re8 Bg2 Re1 Rb3+ Ka4 c8R Bc2 Qh6 b1R Rf1 h1R Qhe6 Rb2 Qg4 Nb1 Ne4 Qh8+ Kd5 Qc3 Rb5 Rb4 Ba3 Rb2 Bc5 Rb3 Kc6 Rb4 Bf3 g2 Kd7 g1Q Bd4 Rb2 Qh4 Qg8 Rg1 Bf1 Rg3 Rb3 Bg2 Rb4 Rf3 Rb2 Qc1 d1Q Qe3 d2 Qd3 Qc1 Qhg4 d1Q a8R+ Qa5 Rab8 Qe3 Rb3 Qc3 R8b5 Qdc1 Nd6 Q1d2 Nf5 Qd1 Qd2 Be4 Qd3 Qdc2 Qh4 Qed2 Ne3 Bg6 Nd1 Qe3 Qg5 Ra2 Qge5 Ra3 Rb2 Rb3 Qee4 Rb4 Re5 Rb5 Rb3 Rb8 Reb5
1qrR2qb/k1P3B1/n1B1b3/1B3Qr1/Pp1Q2r1/1b2rN1b/7K/Qb4BR b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 f5 f6 exf6 Ra5 Bb5 Ra4 Bf1 Ra8 g4 Nh6 h4 Na6 h5 Ng8 Nc3 Nc7 Nce2 Ne6 Nf4 gxf4 g5 Bg7 Ke2 Nf8 Ke1 Ng6 hxg6 Bf8 Kf2 b3 Kg2 e5 a4 b5 c4 d5 c5 Kd7 c6+ Kc7 g7 Kb6 c7 h5 g6 f3+ Kh3 b4 f7 h4 Rh2 e4 Bb5 e3 Bb2 e2 Rh1 e1R Qe2 f2 Qg4 f1B+ Kh2 d3 f6 h3 Qc4 d2 Qd3 d1B Ra3 d4 Qb1 d3 Ne2 d2 Kg3 h2 Be8 Ra5 Bc6 Be6 Ng1 Ka7 Qa1 Qb8 Bd4+ Bc5 Be3 Bd4 Nf3 b2 f8Q b1B f7 Bfh3 Rg1 h1Q Rd3 Nf6 g8Q Bdb3 g7 d1R Rf1 Rh4 Qh8 Nd7 Bf2 Nc5 g8B Bd7 Qc8 Na6 f8B Re3 Bc4 Rf4 Qh4 Bh8 Bh6 Rc5 B4b5 Rf8 Rd6 Rd4 Rc1 Qf1 Kh2 Qc4 Bg7 Qg8 Rh1 Rg5 Bg1 Bdg4 Qe6 Rc8 Rd8 Rc4 Qd5 Be6 Qf5 Re4 Qhf4 Rd4 Qd6 Rdg4 Qdd4+
1n1b1r1B/R3B1r1/1NQr1RP1/4n2B/1pbQ1Q1b/3P1r2/3QK1k1/b1r1b3 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Nh6 h4 Nd7 h5 Ng8 Nc3 Nb8 Nce2 Qd7 Nf4 gxf4 g5 Qa4 Rh4 Qa6 Rh1 Qg6 hxg6 Kd7 Kf2 Kd8 Ke1 Ke8 a4 Kd7 g7 Kd6 f6 Ke5 d3 c5 a5 b5 f7 h5 g6 b3 d6 c4 d7 b2 d8Q b1R a6 e3 a7 e2 Qe8 f3 Rh4 b4 Rf4 h4 Ra4 c3 Qc2 h3 Qd8 h2 Qb6 h1R Qd8 Nf6 g8Q Ng4 Qb2 Be6 Ra2 Bc4 Qd7 R1h7 Qc6 Bg7 Qge8 Rf8 Qd2 c2 Qd1 f2+ Kd2 e1B+ Ke2 e6 Bd2 c1B Bg2 f1R Be4 Bh4 Nh3 Rf3 Rf6 Bb2 Qf1 Rc1 Qd8 Ba1 Nf4 Bh8 Nd5 Rg7 Qdd6+ Kd4 Qf4 e5 Qe1 Rd8 f8B Rd6 Bf5+ e4 Be7 Ne5 Ra4 Ba2 Bg4 Bc4 Qh6 e3 Bh5 Nbd7 Qd1 Rf8 a8Q Nb8 Nb6 Rgf7 Rf5 B8f6 Ra7 Rg7 Qg5 Nbd7 Qd8 Nb8 Qg3 Bfg5 Ke1 e2 Bc3+ Ke3 Rf7 Rf6 Qf2+ Kf4 Kd2 e1B+ Ke2 Bd5 Qdc7 Bc4 Qd4+ Kg3 Qd2 Rd6 Rf5 Kg2 Rf6 Rdd8 Q7d6 Rd7 Q4f4 Rdd8 Qdd5 Rd6 Qdd4 Rgg8 Re6 Ba6 Qdc5 Ned7 Bh8 Ne5 Qcd4 Rg7 Bd8 Be7 Rf6 Bc4 Bc7 Rd7 Bd6 Bd8 Be7 Rd5 Ra5 Rd6 Ra7
1nb1n3/Bnq1Pk1p/1N5K/R2N1q1N/1n1R3b/1b4Qq/1NPr1b2/1RQ5 b - - 0 1 legal: proof: d4 a5 h4 e5 g4 b5 a4 c5 axb5 cxd4 f4 exf4 g5 g6 Bh3 f3 Bf5 gxf5 h5 f4 Nd2 Ra6 Nb1 Rg6 hxg6 Bh6 Nd2 Bg7 Nb1 Bf8 Kf2 f5 b4 d5 e4 a4 g7 d3 e5 d4 g6 d2 b6 a3 b5 a2 b7 d3 e6 Be7 b6 Nf6 g8N Qc7 Qe2 d1N+ Ke1 f2+ Kd2 f1Q g7 f3 Nh3 f2 Qe3 f4 Nc3 f3 Nd5 Nb2 Nhf4 Na4 Rh4 Qh3 Ba3 f1B Bc5 f2 Qe1 Be2 Qc1 Bf3 Ke3 d2 Nd3 f1Q Rd4 Qf5 Nb2 Q1h3 Rb1 Bd8 Nge7 a1B Ng6 Rf8 g8R Be7 Ngf4 d1N+ Kd2 Ne3 Nh5 Bd8 Rg5 Be4 Ke2 Rf7 Kd2 Rd7 e7 Kf7 Ke2 Ne8 Kd2 Nd1 Ke2 Nf2 Kd2 Nd3 Ke2 Na6 b8Q Ndb4 b7 Bg2 Bb6 N4c5 Ba7 Bf3+ Ke3 Be2+ Ng3 Bc4 Rh5 Bb3 Rg5 Qf6 Re5 Qg6 Kf4 Qd3 Kg5 Qe4 Qa8 Nb8 Nh5 Qed3 Kh6 Qdf5 Nc4 Bc3 Nb2 Bd2+ Rf4 Be1 Rd4 N8a6 b8N Bh4 Qc6 Nb7 Qc3 Rd6+ Nhf6 Rd7 Qg3 Rd6 Nd7 Nb8 N7b6 Rd7 Nf4 Rd5 N6h5 Rd7 Rde4 Rd2 Nfd5 Qc5 Na8 Bb6 Rg4 Qc7 Rd4 Bc5 Nab6 Bd7 Rf4 Bf2 Rd4 Bc8 Nc3 Bce6 Ra5 Bc8 Ncd5
b2q2k1/1P3Rb1/2BRNp2/BQq3Q1/4R3/Bn1qnB1P/1n1n4/2r1q1bK b - - 0 1 legal: proof: f4 b5 d4 c5 a4 cxd4 f5 f6 g4 e6 axb5 exf5 g5 f4 g6 Qc7 Bg2 Qb6 Bf1 Qd8 Na3 a5 Nb1 Ke7 Nd2 h5 Nc4 Nc6 Ne3 Nb8 Ng4 hxg4 Ra3 Ra6 Ra1 Re6 Nh3 Kd6 Ng1 Re7 Bh3 Rf7 gxf7 Ke6 Bf1 Ke7 Kf2 g5 Kg2 d5 b4 f3+ Kg3 f2 Kg2 g3 e4 g4 c4 d3 c5 a4 h3 d2 e5 a3 c6 a2 c7 d4 b6 d3 e6 Nd7 b5 Nc5 b7 Bg7 f8R Nb3 b8B Nh6 b6 Nf5 Qe2 d1Q Nf3 d2 Qb5 Bb7 c8Q Ba8 Be2 f1N b7 N5e3+ Kg1 g2 Bc7 Qe1 Nd4 d1N Ba5 Nb2 Bf3 Nfd2+ Kh2 Qe2 Rd1 g1B+ Kh1 g3 Qcc6 Qf1 Qg5 Qd3 Qcb5 Rg8 Rb1 a1Q Re1 Qa3 Rd1 Qc5 Rf7+ Kd6 e7 Rh8 Nf5+ Ke6 e8B Rh4 Ra1 Rc4 Ra4 Rc3 Bec6 Rc2 Rd7 Rc4 Rd6+ Kf7 Nd4 Kg8 Ne6 Ne4 Bcd2 Rc1 Bdb4 Ned2 Ba3 Bf2 Re4 g2+ Kh2 Bg1+ Kg3 Bf2+ Kf4 g1Q Rd5 Ndf1 Rd7 Qe2 R1d6 Qd3 Rc7 Nfd2 Rf7 Ng2+ Kg4 Be3 Kg3 Qe1+ Kh2 Bg1+ Kh1 Ne3 Rdd7 Qe8 Rdd4 Qd8 Rd6
B2Q1n2/P1N3Pn/3K4/4NN1r/2RB1k1n/Q2b1rnQ/q2qp2r/2q1qN2 b - - 0 1 legal: proof: c4 f5 b4 a5 f4 axb4 e4 fxe4 f5 g5 a3 d5 cxd5 Bh6 Ra2 Bg7 Ra1 Bf8 g4 Be6 h4 Nh6 a4 Nf7 Ra3 Rg8 Rf3 Rh8 Rf4 gxf4 g5 Bh6 g6 Bc8 Qc2 Bg5 hxg5 Nh6 Qd1 Ng8 Ke2 Kd7 d4 Kd6 a5 e5 a6 c5 g7 b5 a7 h5 f6 h4 g6 f3+ Ke3 b3 f7 c4 f8N c3 Bd2 f2 Na3 c2 Rh2 c1Q Rh3 b4 Qh5 b2 Qg4 b1Q Qg5 b3 Nd7 b2 Qg2 Nf6 g8N Qa2 g7 b1Q Ne7 Nh7 Nf3 Ba6 Nh2 Bd3 Rf3 h3 Rf4 Qba1 Qf3 Qa5 Bg2 f1R Rh4 Rh1 Nf1 h2 Qh3 Rf8 Bf3 Rf5 Bg2 Rh5 Rg4 Qcc2 Bc3 Qcc1+ Nd2 Rf1 Rh4 h1N Nf5+ Kc7 Bb2 Ng3 d6+ Kc6 Bc3 Kd5 Nb5 Rh1 Bb2 Rh2 Rg4 Qcc3 Nf1 Qcc1+ Kf2 Ke6 Rh4 e3+ Kf3 e4+ Kf4 Qce1 Ne5 e2 d7 e3 d8Q Nd7 Qf8 Qac1 Qa3 Rf8 Ba8 Qad2 d5+ Kf6 d6 Rf7 Nc7 Ndf8 Ng4+ Kg6 Ke5 Kg5 d7 Rf6 Ne7 Rf3 Kd6 Kf4 d8Q Qf2 Nf5 e1N Be4 e2 Ba8 Ng2 Bc3 Qfe1 Bd4 Qd5+ Ke7 Q5a2 Ne5+ Kg5 Rf4 Nh4 Kd6+ Nf6 Bc5 Ba6+ Ke7 Bd3 Rc4 N6h7 Bd4 Kf4 Kd6
3Qnb2/2QB1b1k/2qB1P1q/rQ3rRB/2r1n3/pqPp2N1/bR6/1BK5 b - - 0 1 legal: proof: d4 f5 e4 fxe4 h4 c5 a4 cxd4 Nc3 g5 hxg5 b5 axb5 Nc6 Nb1 Nb8 c3 d3 Na3 Qa5 Nc2 dxc2 Qd4 Qb6 Qd1 Qd8 Kd2 Kf7 b4 Kg7 g4 h5 f4 e5 g6 a5 b6 d5 g5 a4 f5 a3 b5 d4 b7 e3+ Kd3 e4+ Ke2 h4 b6 h3 Ra2 h2 Bg2 Na6 b8Q Rh4 b7 Nc7 Rb2 Nf6 Bh3 Qd6 Qf1 Be6 Qd8 Qc6 b8Q Nce8 Qbc7+ Bf7 Bd2 Kg8 g7 c1Q Bg4 Qc2 Bh5 Qb3 Be1 Rg4 Bg3 Kh7 Bd6 Ra5 Ke1 e2 Kd2 e1R Ne2 Rh4 Rg1 h1B Ng3 Bg2 Qc4 d3 Qb5 Re3 Kc1 Rf3 Rd2 e3 Rb2 Ne4 f6 e2 g8B+ Kh8 g6 Rf5 Nh1 Bh3 Rg5 Rhf4 Ng3 e1Q+ Bd1 Qf2 Bh5 Qh2 Bh7 Nf2 Bg8 Rc4 Bh7 Ne4 Bg8 Bd5 Be6 Bg4 g7+ Kh7 Bc8 Bf7 Bd7 Bd1 Qcb8 Bc2 Qbc7 Bb1 g8B+ Kh6 Bd1 Ba2 Bc2 Qh3 Bb1 Qh4 Bh7 Qh5 Bg6 Qh4 Bh5 Kh7 Bf3 Qh6 Bh5
1R1B2RQ/q6R/1B2PK1p/1r3P2/QB3nb1/2r1q1qn/k1p2br1/1R2N2n b - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 e6 h4 gxh4 d6 Nc6 d7+ Ke7 Qa4 Nb8 Qc2 Ba6 Qd1 Bc8 e4 Qe8 d4 Qd8 d5 Kf6 d6 Kg7 Nd2 f5 e5 Kg6 Ne4 fxe4 Bc4 Kf7 Bd5 exd5 Kd2 Ke6 Kc3 a5 Kd4 c5+ Ke3 h3 Kf4 h6 g4 c4 b4 a4 b6 d4 f3 Kd5 Kf5 h2 g5 d3 b7 d2 g6 a3 f4 a2 b5 e3 g7 e2 b6 e1Q Nf3 c3 Rb1 Kc4 Rb5 a1Q Rd5 c2 Nd4 Nc6 b8B Qe8 b7 Qg3 Nb3 Nd8 Bc7 Nf6 b8R Ra5 g8R Ne4 Rg1 h1N Qg4 d1R Bb6 Rb5 Ba3 Ng5 Nd4 Rd2 Nf3 Kb3 Rb1+ Ka2 Ne1 Nde6 d8Q Nh3 d7 Rg2 Kf6 Bc5 Rd3 Bf2 f5 Nef4 Rc3 Bb7 Rc7 Bf3 Qc8 Bd1 d8B Bf3 Qh4 Bg4 Rh7 Qd4 Qc3 Qde3 e6 Qd7 Qd4 Qb7 Qa4 Qa7 Qg5 Qh2 Qg7 Qhg3 Rf8 Rg8 Qh8 Rg7 Re8 Rc7 Rg8 Rc3 Bb4+
2r1k1bK/1R1q2PQ/Q2n4/5QqR/BP1n2b1/2pr1N1p/3q4/nN1R1Q1b b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 g3 Nf3 exf6 Ng1 f5 Qb3 f4 Qa4 Qe7 Qd1 Qd8 h4 Nf6 b3 Ne4 Bb2 Qe7 Bd4 Bh6 Bf2 Bg5 hxg5 Qa3 g6 Qf8 Qc1 gxf2+ Kd1 Qh6 g4 Qf8 g5 Nf6 Kc2 Qd6 Qd1 Ng8 Kc1 Qd8 Kc2 h5 Kc3 f5 e4 a5 d4 c5 b6 a4 d5 f3 g7 f4 b7 h4 e5 h3 b4 a3 e6 a2 d6 Nf6 g6 Nc6 b8R Qd7 e7 Ra3+ Qb3 Nd4 Bg2 f1B Rb7 f2 Bc6 Bg2 Ba4 f1Q Nf3 Qf2 Rd1 Rf8 g8Q Bh1 g7 Qg3 Qh8 Qg5 Qh7 Rh8 Kd2 c3+ Kd3 Ne4 Qd5 c2+ Kc4 Rd3 Qdf5 c1Q+ Kd5 c4 Ke5 c3 Kd5 Qg2 Ke5 Ng5 Kf6 Qcd2 Kg6 Qg3 Qb5 Rf8 Qa6 Ne4+ Kh6 Qg4 Qf5 Qg5+ Kh7 Rf7 Kh8 Rf6 Ne5 f3 Qh7 f2 Nf3 f1B Qf5 Qb5 Qh7 Bg4 d7+ Kf7 d8Q Qd7 Qdb6 Ke8 Qe6 Nd6 Qe1 Be2 Qg1 Rf5 Qf1 Rc5 Qf5 Rc8 Qh7 Be6 Qf5 Bg8 Qh7 Kf7 e8Q+ Kf6 Qeh5 Ke7 Qg4 Ke8 Qgf5 Qc1 Rd2 Bd1 Rg2 Qcd2 Rg4 Be2 Rh4 Bd1 Rh5 Be2 Na3 Bd1 Rc1 a1N Nb1 Be2 Nh2 Bef3 Rd1 Bg4 Nf3
4Nn2/1rR2PP1/1Q2b2q/2B2Q1r/NKRp2kr/2p2nNR/4nq2/b1N1q3 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 d4 gxh4 c4 c6 d5 cxd5 c5 Bb7 Bd3 Bc8 Bc4 dxc4 Kd2 Kf7 Kc3 Kf6 f4 e5 b4 d5 g4 a5 c6 h5 c7 a4 b6 e4 b7 h3 b5 h2 b6 h4 Qc2 e3 Nd2 a3 Nb3 h3 Ne2 a2 Ba3 Bd7 c8R Be6 Rc7 Nd7 b8N Ne7 b7 Rh4 Na6 Rb8 Nac5 Bg7 Rac1 a1Q+ Kb4 Qf8 Ng3 e2 Na4 e1N Qd3 Nf3 g5+ Kf7 g6+ Kf6 Rc3 Qe1 Nc1 Qf7 Qe3 Nf8 Qb6 Bh8 Ka5 Rh5 Bc5 Nc6+ Kb5 Ncd4+ Kb4 Qf2 Rc2 Ne2 Rc3 Qe8 Rc2 Rd8 b8N Rd7 Na6 Qe7 Rc6 Rb7 Nc7 Kg7 f6+ Kh6 f7 Ba1 f5 Kg5 g7 d4 f6 Kg4 Ne8 c3 Rb2 Qd6 Rc7 Qf4 Rb3 Qh6 Ra3 Nh7 f8Q Rh4 Qd6 Nf8 f7 Rh5 Qe5 Rh4 Rd1 h1Q Rd3 h2 Rb3 Qhe1 Ra3 Rh5 Qf5+ Kh4 Rb3 h1R Ka3 Qg2 Rd2 Nf4 Rb4 Qh2 Rf2 Ne2 Rc4 Qhg1 Rf1 Qgf2 Kb4 Rh3 Rh1 Rh2 Qb1 Kg4 Qd3 R2h4 Rh3 Nh2 Qc2 Nf3 Qf5+
1k1R1r2/3qPb1K/B1n1n3/Q1R5/bQ3b2/RNPpR1r1/qn2p3/2QrN3 b - - 0 1 illegal: No possible last move
3R1r1N/q1rPn1Rq/1q3b2/Nr2n1QN/5bb1/K2P1pN1/1R2p2k/2BQ4 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 f4 d5 h4 gxh4 cxd5 exf4 e3 f3 Be2 fxe2 Kf2 Qe7 Qe1 Qd6 Qd1 Qd8 Ke1 Ke7 g4 Kd6 b4 Ke5 d6 f5 d7 c5 b6 h5 b5 a5 b7 f4 e4 h3 b6 h2 g5 h4 g6 c4 g7 c3 Ra2 c2 Nc3 h3 Rb2 Nc6 b8R a4 b7 Nge7 g8Q a3 Qg4 Ra7 Qg5+ Nf5 Ra8 a2 b8N Rc7 Ra7 a1Q Nf3+ Ke6 e5 Be7 Ra8 Rf8 Rg1 h1R Nh4 h2 Ng6 f3 Ne4 Bf6 Ng3 Nfe7 Nh8 Kd5 e6+ Ne5 Nc6 Qa7 Na5 Kd6 Rf1 Rg1 Rab8 h1Q Ra8 Rg2 Rg1 Qh7 Rab8 Rh2 Ra8 Rh5 Rab8 Bb7 d3 Be4 Kd2 Bf5 Rc8 Bg4 Ra8 Qdb8 Rg2 Qbb6 Rd8 N7c6 Kc3 Kd5 Bd2 c1B e7 Ke6 e8N Ne7+ Nc6 Kd5 Kc2 Ke6 Ng7+ Kd6 Kb1 Kd5 Na5 Kd6 Be1 Bf4 Ka2 Kd5 Bb4 Kd4 Ka3 Ke3 Rg1 Kf2 Bc3 Qe6 Bd2 Qeb6 Qh4 Rf5 N7h5 Rg5 Bc1 Rf5 Re1 Kg2 Qg5 Kh2 Rg1 N5c6 Ne4 Rb5 Rg3 Bf5 Rg4 Ne5 Neg3 Be6 Qh6 Bf5 Rg7 Bg4 Qg5
2RBK3/N2p4/N3b2b/1rQQ1bP1/nnr3P1/q2Q1p1B/1rNq1n2/1Q2k3 b - - 0 1 illegal: No possible last move
RnR1rk2/bpPB2Br/2P4r/8/N2bBnp1/2q1R2R/K1bQ1q1Q/4n3 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 dxc5 g5 b4 axb4 e4 Bg7 Nd2 Bf8 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Rh7 Ng4 hxg4 Bh3 Rh5 Bf1 Rh8 Kd2 e5 a4 d5 c4 d4 Kc2 d3+ Kb2 d2 h4 f3 c6 b3 a5 e4 c5 e3 c7 f2 f6 e2 h5 e1B c6 Ra7 a6 Be7 f7+ Kf8 g6 Nf6 h6 Ra8 h7 Nh5 a7 Qd3 Ne2 Bc5 Nc3 Bf5 Bg2 f1Q Ra3 Qf2 Na4 Nf4 Be4 Qc3+ Kb1 b2 Rh3 Bb6 Ka2 b1N Bb2 Bd4 Qc1 d1R Qd2 Rc1 Rb3 Na3 g7+ Ke7 f8R Nc2 Rc8 Re8 g8B Kf8 Qd3 Bd2 h8Q B2e3 Qh4 Rh1 Be6 Ne1 Bd7 Bh7 Qd2 Bg6 Rf3 Bf5 Qg3 Rh7 Qh2 Rh6 Bd5 Bc2 Rh3 Na6 Bf3 Rb8 a8R Ba7 Bg2 Bed4 Rd8 Rc8 Be4 Nb8 Re3 Kf7 Ra3 Reh8 Rg8 Re8 Rb3 R8h7 Ra3 Re7 Rc8 Re8 Rh3 Kf8 Ba1 Qb4 Rae3 Qc3 Bb2 Qb3+ Ka1 Bh8 Bf6 Qc3+ Ka2 Bg7 Bh4 Be5 Bf6 Bed4 Bg7+
4r3/P1rR1q1q/BBb1BN2/pBKQpn2/1P3b1q/1rN4b/2Nk4/nQ6 b - - 0 1 legal: proof: e4 a5 c4 f5 h4 d5 cxd5 g5 hxg5 fxe4 b4 a4 Qb3 axb3 a4 b6 a5 Kf7 a6 Ke8 Ra5 bxa5 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 h4 f4 b2 a7 e6 f5 e3 f6 c6 f7 h3 g6 h2 g7 e2 g5 e1Q g6 Rh3 Na3 b1Q Ne2 Ne7 g8B Na6 g7 Qh7 d3 Rf3 Be3 c5+ Kc4 Ke5 d6 Qeh4+ d4+ Ke4 d5 e5 d7 Qc7 d8Q Qb7 d6 Bh3 d7 Nf5 Qc7 Be7 d8Q Bg5 f8N Bf4 Be6 Rb8 Qcd6 Qf7 Nd7 Rg3 Rg1 h1B Qd3+ Kf3 Kd5 c4 Nf6 c3 Qb1 c2 Bb6 c1R Rg2 Rc6 Nc2 Nc5 Rg1 Kf2+ Kc4 Ra3 Nc3 Rc7 Be2 Rbc8 Rd1 Bc6 Qd3 Re8 Qe4 Be3 Rd7 Nb3 Qd4 Na1 Kc5 Rb3 Ba6 Kf3 Bec4 Bd2 Bcb5 Bf4 Qd5+ Kf2 Nd4 Ke3 g8B Qfh5 Bf7 Kd2 Be6 Q5f7 Nc2+
KNN1rQ1n/4r3/2N1b2P/4q2r/2n1QRn1/1N1b1r1k/2Rp1rpP/B6R b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Bg2 b5 axb5 h5 Bf3 Be7 Bg4 Bh4 gxh4 hxg4 Kf2 Ke7 b4 Ke6 c4 Kf5 c5 g5 e3 a5 h5 d5 b6 d3 c6 g3+ Kf3 g2 b5 a4 c7 a3 b7 a2 b6 d4 Ba3 d2 Bc1 g4+ Ke2 f3+ Kd3 f2 Kc4 f1R Kb5 d3 Qe1 d1N Ba3 g3 e4+ Kg4 e5 f5 e6 f4 e7 f3 e8R d2 Qf2 Nc6 b8Q Ne3 b7 Na5 Kb6 Qe7 Bc5 Qe5 Ne2 g1R Nd4 g2 Nc6 Ne7 Bd4 Be6 c8N Ng6 Nc3 Kh3 Qe2 f2 Na4 Ng4 Rc1 a1R Qe4 Ra3 Rf8 Rf3 Rf4 Ra7 Qd6 Nc4+ Kc7 Re1 Kb8 f1B Ba1 Bd3 Nc5 Rgf1 Rc2 R1f2 Nb3 Re8 h6 Nh8 Qd5 Ra5 Qe4 Rb5 Ka8 Qd5 b8N Bd7 Qh7 Qe4 Na7 Rh5 Qc5 Qf5 Qf8 R1e7 Nc8 Qe5 Qg6 Be6 Qe4
1Nn3n1/n5PR/rBbrQ1Qp/p5N1/1k1N4/2n1P1rq/1K1bBn2/1N3B2 b - - 0 1 legal: proof: f4 c5 b4 g5 c4 b5 h4 e5 a4 exf4 axb5 Na6 Ra3 Nb8 d4 cxd4 Rc3 dxc3 hxg5 Qf6 Qd4 Qb6 Qd1 Qd8 g4 Ke7 c5 f5 e3 a5 c6 d5 g6 Kd6 c7 d4 g5 f3 b6 f2+ Ke2 c2 Kd2 f4 g7 f3 b7 d3 Kc3 h6 b5 Kc5 b6 d2 g6 Bd7 c8N Nc6 b8N Qh4 b7 Qh3 Rh2 Ra6 Ne2 Na7 Kb2 Kb4 Qe1 Bc6 Nd4 Bd6 Be2 f1N Qg3 f2 Rg2 d1R Qe5 Nh2 Qe6 f1N Rg3 Bc5 Nd6 Nd2 Ne4 Ng4 Ng5 Nf2 Rf3 Rh7 Rf7 Nde4 Re7 Nd6 Bd2+ Ka4 Bb4 Ndc8 Rc7 Be7 Bc5 c1N Bb6 Kb4 Bf1 Ne2 Rd7 Nf6 g8B Nc3 Be2 Bc5 Rf7 Rh8 Rh7 Rg1 g7 Rg3 Bf7 Rd8 Bf1 Rd5 Bh5 Rd6 Bhe2 Ng8 Nd7 Ka4 b8Q Bb4 Qa8 Nd5 Qg6 Bd2 Nb8 Kb4 Qb7 Nc3 Qbf7 Qg4 Qff5 Qh3 Qfe6
3Qr1R1/1B1PnRP1/1nb3kp/2KB1Br1/rr1Bp2n/2Q1N2Q/1b6/r3q3 b - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 b5 axb5 g5 Ra2 gxh4 Ra5 Qd5 Ra1 Qd8 f4 e5 e4 f5 Nc3 Qd3 fxe5 Ba6 e6 Qd8 e5 Bc8 Ne4 fxe4 Ke2 a5 Ke3 c5 b4 h3 g4 c3 d4 a4 e7 Kf7 e8B+ Kg7 e6 c2 e7 h2 b6 c4 b5 a3 g5 c3 d5 a2 Kd4 h6 b7 Na6 b8Q Nc7 b6 Ra5 g6 Ra4+ Bc4 Ba6 b7 Bb5 d6 Bc6 Qe1 Qc8 Bb2 c1N Ne2 c2 Qc3 Rb4 Rf1 h1R Nf4 Na8 Bd7 Rg1 e8B Nb6 Bf5 Ne2+ Kc5+ Nd4 Bd5 c1R Ng2 Ne7 Ne3 Rg5 d7 Kf6 Qh2 Bg7 Bef7 Re8 b8Q Qb7 Rb1 a1R Qh3 Raa4 Qd8 Qc7 Rf3 Qg3 Rf2 Rh1 Rg1 Qh4 Rg4 Rha1 Rff4 Qe1 Rf2 Bb5 Bb7 Bc6 Bd5 Bh8 Bfe6+ Kg7 Rf6 Nf3 Bf5 Nh4 Rf7+ Kg8 Rf4 Be5 Rf8+ Kg7 Rg8+ Kf6 g7 Rg4 Bfe6+ Kg6 Rf7 Rg2 Qb3 Rg1 Bd4 Rg5 Qc3 Bf4 Ng4 Bc1 Ne3 Bb2 Bf5+
r2n1nK1/3pr3/2pQRB2/3b3P/1N1b1n2/Bq2P1R1/nb2R3/1R1Q1nQk b - - 0 1 legal: proof: d4 a5 c4 b5 b4 f5 g3 h5 Bh3 e5 Bg4 f4 gxf4 exd4 Na3 hxg4 Nc2 Qh4 cxb5 Ra7 b6 Qd8 b5 Ra8 Nb4 axb4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 a4 b3 h4 b2 h5 b1N a5 g3 a6 d3 a7 d2 f5 g2 f4 g4 b7 g3 b6 c6 Ba3 Na6 b8B Rh7 b7 Bg7 Nh3 g1N Ra2 g2 Nf2 Nh3 Rg1 Qb6 Nd3 Ne7 Nb4 Ng6 Re1 g1B Be5+ Kf7 b8Q Nf8 f6 Ke6 f7 Nc7 Bf6 Bd4 e3 Ba6 f5+ Kd6 Rg1 Nf4 Rg3 Bc4 Rc2 Kc5 Rb2 Nce6 Qd6+ Kb5 Rc2 Nd8 Rb2 Ba2 Rb3 Kc4 Rb2 Rc8 a8R Qb5 Ra7 Ra8 Rb7 Qa4 Rb5 Qb3 Re5 Bh8 Re6 Bg7 Qg1 d1N Re2 Bb2 Qh1 Ndc3+ Ke5 Nd2 Qd1 Rh8 Rg4 Nf1 Rg3 Nh7 f8Q Rg8 Qfe7 Re8 Q6d2 Nf8 Qed6 Bh8 Q2e1 Re7 Qf2 Qa4 Bg7 Bb3 f6 Na2+ Kf5 Bd4 f7 Kc3 Bf6 Bd5 Kg5 Qb3 Kh6 Kc4 Bh4 Bhe5 Bf6 Bb2 Kg7 Bed4 Nc2 Nd2 Kg8 Kd3 Be5 Ke4 Nb4 N8g6 f8R Nf1 Rf7 Nf8 Bf6+ Kf5 Rf3 Kg4 Rh3 Bdc3 Rh1 Bd4 Rg1+ Kh3 Rfg7 Ng2 Rg3+ Kh2 Nd3 Nd2 Rge1 Nf1 Nb4 Kh1 Qd3 Rh7 Rb1 Re7 Qd1 Nf4 Qg1#
1n4k1/1NP1pr2/6R1/4qR1b/1NnrrR2/nQ2bPR1/pn3N2/K1n1BQ2 b - - 0 1 illegal: No possible last move, all moves rejected
K1n1Q3/3b1R1k/B3pr2/1r2nnpN/2r2q2/B2QQPQ1/2P3N1/2bB2bb b - - 0 1 legal: proof: d4 f5 a4 g5 d5 b5 axb5 f4 d6 f3 exf3 cxd6 Ne2 d5 Ng1 d4 b4 Bh6 Ra6 Bf8 Kd2 g4 Rg6 g3 Rg5 gxf2 g4 Qa5 Rg6 Qd8 g5 Nh6 Rd6 Ng8 g6 h6 Rd5 Qc7 Rc5 Qd8 Rg5 hxg5 Kd3 a5 Ke4 d5+ Ke5 a4 h4 a3 g7 Kf7 h5 d3 b6 d4 h6 Kg6 b5 d2 b7 d3 b6 a2 h7 a1B+ Nc3 Nd7+ Kd5 Ra5+ Kc6 Rb5 b8Q Bb2 Be2 f1B b7 Bg2 Nh3 e6 Qf4 Bb4 b8Q Qf8 Ne4 Bc5 Nf6 Bg1 Nh5 Ne5+ Kc7 Bd7 Qe3 Ne7 g8B Nc8 N3f4+ Kh6 Qf1 Qf5 Bd1 Qe4 Bf7 Rf8 Bg6 Rf6 Rh3 Bh1 Ng2 Qf4 Qfe2 Ra5 Kb7 Rb5+ Ka8 Ba3 Be4 Bb2 Bc6 Ba3 h8Q+ Kg6 Qf8 Kh7 Bb7 Bb2 Qf1 Ba3 Be2 d1R Ba6 d2 Qe8 Re1 Qd6 d1N Qff2 Bb2 Qg3 Ba3 Qed2 Ne3 Q6d3+ Nf5 Bd1 Re4 Q2e3 Rc4 Rh2 Bb4 Ba3 Bd2 Rh4 Qd4 Rg4 Qd6 Rd4 Bc1 Rd5 Qf8 Rc5 Qd6 Rc7 Qd4 Ra7 Qf4 Bb7 Bc6 Qed8 Be8 Ba6+ Kh6 Rf7 Bd7 Qe8 Kg6 Ng7 Kh7 Nh5+
2b5/3rpnB1/q2n1NQB/6b1/Prrp2R1/nN4B1/1NbB1P2/K2Qnk2 b - - 0 1 legal: proof: d4 f5 e4 h5 exf5 c5 g4 a5 gxh5 Nh6 b4 axb4 d5 Ng8 a3 Ra7 Bf4 Ra4 Bc1 Ra8 c4 Nf6 a4 Qa5 Ra2 Qc7 Rd2 Ra6 Rd4 cxd4 c5 Qa5 c6 Ra8 Bb5 Qd8 c7 Ng8 Bc6 dxc6 Kd2 Kd7 Kc2 Kd6 Kb2 Ke5 h4 Ke4 d6 g5 h6 b5 h5 b3 h7 b4 h6 c5 d7 g4 f6 c4 f7 g3 Rh5 g2 Ka1 c3 Be3 b2+ Ka2 b3+ Ka3 c2 Qe1 Kd3 Bd2 c1R Rg5 Nf6 Rg4 Ne8 Qd1 Nd6 Ne2 g1N Nec3 Nc6 Ne4 Nf3 Nf6 Rb8 Nc3 b1N+ Kb2 Ne1 Ka1 Rg8 h8B Rb4 h7 Ne5 Bg7 Na3+ Nb1 Rc5 h8Q Rcc4 Qh6 Qe8 d8B Qc6 Qh5 Qa6 Bgh6 Bg7 f8B Nef7 Qg5 Bh8 Qh5 Rg5 Bfg7 Rd5 Qf5+ Ne4 Qg6 Rd7 Qc1 Ke2 Qc2 Bb7 c8N Kf1 Bc7 Ned6 Nb6 Bc8 Qd1 b2+ Ka2 Ndb5 Be5 Nbd6 Bg3 Rc2 Nc4 Rc1 Na5 Rcc4 Nc3 b1B+ Ka1 Bd3 Nb3 Bc2 Na2 Rd8 Nac1 Rd7 Bf8 Bg7 Nd3 Bh8 Nb2 Bg7 Ne4 Bf6 Bfg7 Bg5 Nf6
2k1r2n/2Rp1p2/1q3P1r/RP1r4/2n3b1/QbN2bN1/2nB1NQ1/Nb3K1R b - - 0 1 legal: proof: d4 b5 f4 c5 b4 g6 f5 cxb4 a4 e5 axb5 exd4 h4 Nf6 g4 Ne4 f6 Be7 g5 Nc3 Bh3 Nd5 Bf5 gxf5 Bf4 Bd6 Bc1 Bf4 g6 Bg5 hxg5 Ne7 Kf2 Ng8 Kf1 Nh6 Ke1 Ng8 e4 a5 c4 h5 e5 b3 g7 a4 e6 d3 g6 d2+ Kf2 h4 c5 a3 c6 a2 c7 h3 Rh2 b2 Kf1 f4 Na3 b1B Qa4 d1R+ Kf2 f3 Qe4 Rh6 Ne2 Ne7 g8N Nbc6 g7 Ne5 Ng3 Nc4 Nc2 Ng6 Qd3 Nh8 Rh1 h2 Qa3 Rd5 Kf1 f2 Bd2 Bb7 c8R Rb8 Rc5 Qb6 Rc7 Kd8 Ne7 Ba8 Ng6 Bb7 Nf4 Rc8 Nfe2 Ba8 Rg1 h1B Nc3 Bf3 Rh1 Bg4 g8N Rg6 Nh6 Bc6 Nhf5 Rh6 Nge4 Bb7 Nfg3 Rb8 Rc5 Bc6 e7+ Kc8 Kg2 f1B+ Kg1 Nd6 Nf2 Bc4 Kg2 Bb3 Kf1 Nc4 e8Q+ Kb7 Qe2 Re8 Qf3 Kc8 Qg2 Rdh5 Re5 Bcf3 Re4 Ne5 Ra4 Nc4 Ra5 Rd5 Nb4 B1c2 Rc1 Bb1 Nc2 a1N Nd4 B3a2 Nb3 Nc2 Na1 Bb3 Re1 Rh7 Re6 Rh6 Rc6+ Kb7 Rc7+ Kb8 Rca7 Kc8 Rc7+
2nrbK2/2Pk1P1N/2QnN2B/1N1Q4/2nR3b/r1pNr2q/3p3b/r1Q1R3 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 d4 gxh4 c4 c6 d5 cxd5 c5 Bb7 Bd3 Bc8 Bc4 dxc4 Ke2 d5 Ke3 e5 b4 a5 f4 h5 g4 a4 g5 a3 g6 d4+ Ke4 a2 b6 h3 b5 d3 f6 h2 f5 h4 f7+ Ke7 g7 c3 c6 h3 f6+ Kd6 b7 Ne7 g8Q Bd7 b6 Ra3 c7 Qc8 Bh6 d2 Ne2 Nbc6 b8N Na5 b7 Nc4 Nc1 Be8 Nc6 Kd7 Re1 h1R b8Q h2 Qa8 Rg1 Qaa4 h1N Nd3 Rg3 Qc1 Rf3 Qa6 Rh3 Nd8 Ng3+ Kf3 e4+ Kg4 e3 Kg5 e2 Ne6 Ngf5 Qa4+ Nc6 Kg6 Nfd6 Qa8 Be7 Kg7 Na7 Qh1 Bd8 Kf8 Re3 Qd5 Qb7 Qc5 Qg2 Qd5 Nc8 Qe4 Ra6 Na3 Qh3 Nb5 Ra3 Rb1 a1R Rb4 Ne5 Rd4 Nc4 Rf1 e1B Qd5 Bf2 Re1 Bg1 Qe4 Rh7 Qg5 Rg7 Qgd5 Bh2 Qa8 Rg5 Qf3 Rf5 Kg7 Rc5 Qfe4 Rc6 Qd5 Rb6 Qab7 Na7 Qbc6+ Kc8 f8N Rb8 f7 Bh4 Qb6 Ra8 Nh7 Kd7 Kf8 Rd8 Qbc5 Nc8 Qcc6#
1R1NRq1b/6b1/R1Q1P1kp/bK1Pq2r/3Q3n/2B2r2/2pRBB2/1n1q2b1 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 a4 dxc4 axb5 f5 d5 fxg4 h3 g5 Qa4 g3 Na3 g2 Qd1 g4 Nc2 g3 Nd4 Bg4 hxg4 exd4 Kd2 Kf7 e4 c5 b4 a5 f4 c3+ Kd3 a4 Kc4 c2 e5 a3 b6 d3 e6+ Kg6 g5 d2 b5 a2 b7 Bg7 b6 Nc6 b8R Na5+ Kb5 c4 b7 c3 Nf3 g1Q Be2 g2 Bb2 c1B Nd4 c2 Nc6 Qe1 Bc3 g1B Rh2 Qf8 Re8 Nh6 b8R Nb3 Nd8 Nf5 Rg2 Nh4 Rf2 Kf5 g6 Ba3 Rg2 Bb4 Rf2 Ra3 Rg2 Bf6 g7 Ba5 g8Q Bg7 Rf2 Kg6 f5+ Kh6 f6 Kg6 Rh2 Qg3 f7 Qe5 Qc1 d1Q Qf4 Nd2 Qd4 Nb1 Rf2 Qe7 f8B Q7f6 Bfb4 Qf8 Be1 Rf3 Bbc3 Kf5 Rh2 Kg6 Bf2 Nd2 Rb1 a1B Rc1 Bb2 Ra1 Nb1 Ra4 Bb6 Raa8 Ba5 Ra6 h6 Qf7+ Kg5 Qc4 Bf6 Bcd4 Ba1 Qa7 Qed6 Qc6 Rg8 Bf1 Bh8 Be1 Kh5 Be5 Rg5 Rd2 Kg6 Be2 Rh5 Bf2 Bb2 Bf4 Bbf6 Be5 Bfg7 Bc3 Qe5 Qd4
q5bK/2QR4/1r1p1PQ1/Qb3PN1/1p2n3/Q1n1R3/1B1R2r1/Nrr1qq1k b - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 f4 c5 e4 cxd4 e5 f5 gxf5 e6 Bh3 Be7 Bg4 Bf6 exf6 hxg4 Kd2 Kf7 Kd3 g5 Ke4 b5 Ke5 g3 h4 g2 c4 b3 a4 g4 h5 b2 h6 d6+ Ke4 e5 h7 g3 a5 d3 c5 d2 c6 b4 a6 Bd7 a7 Ne7 c7 Na6 c8Q Rb8 a8R Rg8 h8Q Rb6 Nf3 g1R Qh6 g2 Rh2 Bb5 Qa4 d1B Qa3 Nd5 Nbd2 b1R Bb2 Bb3 Qc5 B3c4 Nb3 Rgc1 Rb8 g1Q Rd2 Qf8 Rd8 Qf1 Qa5 Rg7 Ra3 Rg2 Na1 Qe8 Rb3 Qc6 Rc3 Qa8 Re3 Bb3 Qc3 Ba2 Qca3 Bac4 Ree2 Nc3+ Ke3 e4 Rd7+ Kg8 Ng5 Nd5+ Kd4 e3 Ke4 Rc6 Qh5 Rh2 f7+ Kf8 Rc7 Rb6 Qg6 Rf2 Re1 e2 Ra7 Ndc7+ Rb7 Ke7 f6+ Kd7 Kf5 Kc6 f8Q Nc5 Qgh6 Nd5 Kg6 Nc3 Kg7 Bg8 Rc2 Kd5 f5 Kd4 Qg6 Ke3 Qb8 Rg2 Qc8 Kf2 Rd2 Kg1 Rd7 N5e4 Qc7 Kh1 Kh8 Rc2 Red1 Rcc1 Rd3 e1Q Re3 Qa7 Rd5 Qa8 Rd2
Nq5n/krn1R1N1/pR4bK/P7/Qp1qbr2/Q3rn2/RPB1R3/1Nr5 b - - 0 1 legal: proof: f4 c5 h4 g5 d4 gxh4 dxc5 d5 c4 e5 c6 exf4 c5 d4 c7 Bd6 cxd6 d3 d7+ Kf8 Bd2 Ke7 Bb4+ Kf6 Be7+ Kxe7 Kf2 Kd6 Kf3 Kc5 Kg4 Kb6 Kh5 f5 e4 f3 a4 d2 g4 h3 e5 f2 e6 f4 e7 f3 e8R h2 g5 Ne7 g6 Na6 g7 Ng6 g8Q Rb8 Qc2 d1Q Ra3 Qd4 Qgc4 h6 Ree3 Re8 Ne2 Nh8 Bh3 f1R Qd2 f2 Rec3 Re3 Rg1 h1B Qdd3 Bf3+ Bg4 Be4 Nf4 Qg8 d8N Bcf5 c8R Nc7 Rg2 a6 Ra2 Ka7 Rb3 b5 Nd5 Rb7 a5 Qf8 Qa4 Bg6+ Kh4 h5 Kg5 h4 Bd1 h3 Ne6 h2 Bc2 h1R Re8 Rh4 Ng7 Rc1 Nb6 f1N Re2 Nh2 Re7 Qb8 Na8 Rf4 Kh6 Nf3 Rb4 Qbd8 Qda3 Qb8 Rc4 b4 Rc6 Qd1 Rce6 Qd4 Rb6
2n1QQ2/3B2P1/1k2qn1K/1q1P4/pQ1BN2n/pr3r1n/BQ5b/q3bN1R b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 b4 e5 f4 gxf4 a4 bxa4 h3 Bd7 g5 Bg4 Ra3 e4 Rf3 exf3 hxg4 Bd6 Rh4 Bc5 Rh1 Bf8 Kf2 Kd7 e4 a5 d4 h5 g6 c5 g7 Kc7 d6+ Kb6 d5 f5 g5 c4 g6 a3 e5 a4 d7 c3 e6 c2 b5 h4 e7 h3 e8Q h2 Bc4 Bb4 Qe4 Nf6 g8B Qe8 g7 Qe6 Bb2 c1B Be2 Nc6 Qdd3 Ne7 Qd2 Rf8 Bh7 Nc8 Bg6 Rh3 Bc4 Bd6 Qb4 Bd2 Nc3 Be1+ Kf1 f2 Ke2 f1N Be8 Nd2 Ba2 f3+ Ke3 f2+ Nf3 f1Q d8Q+ Bc7 Bd7 f4+ Kd4 Rf7 Qdf8 Qe2 Qe3 Qd1 Ne4 Qa1 Qeb3 Rg3 Bc3 Rh3 Qb2 Bb8 Rf1 h1N Nh2 f3 Ke3 Nf2 Rh1 Bc7 Nf1 Bh2 Be5 Rg3 Kf4 Rh3+ Kg5 Rg3+ Kh6 Nh3 Q4c3 f2 Qe8 Nf3 Qcb4 Nh4 Qbf8 Rb3 Bd4+ Kb7 b6 Ka6 Nfg3 f1Q b7 Qb5 b8Q Ka5 Bc3+ Ka6 Qbd6+ Kb7 Qb4 Kb6 Nf1 Nh5+ Kh7 Rf3 Be5 Nf6+ Kh6 Ne7 Bc3 Nc8 Bd4+
3NRQb1/4QP2/1R3bbq/2pNN2N/1r2pn2/3rk1PQ/1n5q/2b1nK1B b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 b5 e4 d5 cxd5 f5 Ba3 fxe4 axb5 Kd7 b6 Ke8 b5 Qd7 Bd6 Qd8 Bb4 axb4 f4 Kf7 d4 Kf6 g3 Kf5 d6 h5 d5 e5 d7 c5 b7 e3 d6 Ke4 b6 b3 f5 h3 f6 h2 Ra2 e2 Nd2+ Ke3 Ngf3 h4 Rg1 h1Q Ra5 b2 Ra2 b1B Ra1 h3 Ra5 h2 Qa4 Be7 Qa1 Na6 b8N Bg6 b7 e4 Qa2 Qb6 d8N Nb4 Nd7 Rb8 Ra8 Rh5 Rg2 Rd5 Nb1 Rd3 Qe6 Qg1 Nfe5 h1N Rh2 Nf2 Rh6 Qh2 Qh3 Nd1 Bg2 Nb2 Bh1 Qa6 Nc3 Qc6 Nf8 Be6 d7 Ba2 Nfe6 Qb6 Ndc6 Bd8 Nf4 Ne7 Nh5 Bg8 f7 Ned5 Ra7 Be7 d8Q Bf6 Qe7 Nf4 Nd8 Qd6 Qe8 Qf8 Qe7 Qg7 Rh8 Qh6 Ra6 Kd4 Qg2 Nc2+ Kf2 e1B+ Kf1 Bf2 Rb6 Be3 Nd5 Bc1 Qh3 Ne1 Nb4 Ra8 b8Q Ra4 Nd5 Rb4 Qbd6 B8h7 Re8 Bg8 Nc7+ Ke3 Qf8 Ra4 Qde7 Rb4 Nd5+
r5RK/5P1b/pr1Nb3/1r4B1/3n1qnQ/1k2QQ1R/Rp1b2P1/BQ1bq3 b - - 0 1 illegal: No possible last move, all moves rejected
b1Qq2BQ/4Bp1r/bq4nb/P1R5/kB2R3/nN1P1r2/pb1R1B1K/4r3 b - - 0 1 legal: proof: b4 d5 a4 a5 g4 e5 f4 exf4 c4 axb4 cxd5 h5 Na3 bxa3 gxh5 Bc5 Qc2 Bb4 Qd1 Bf8 Kf2 Kd7 Kg2 b5 e4 c5 h4 g5 d6 Kc6 h6 b4 d7 f3+ Kh3 b3 h7 g4+ Kh2 b2 e5 b1B e6 a2 a5 f2 e7 c4 e8R Kb5 h5 Nc6 h6 Nge7 Ba3 Be4 Qc2 Ng6 Bd3 f1R Nf3 Nb4 Rd1 Ba6 Re5+ Bd5 Re4 Re1 Qc3 Rc8 Nd4+ Ka4 Nb3 Nc2 Bb4 Na3 Rf1 Bdb7 Rf5 Ba8 Rc5 Rc6 Qc1 c3 Bb1 Rf6 Bd3 Qb6 d8B Rf3 Be7 Qd8 Bc2 Rg8 h8Q Rg7 h7 g3+ Kh3 g2+ Kh2 Ref1 Qg8 Rg1 h8B Re1 Bd3 c2 Qh7 Rg8 Bd4 Bh6 Bf2 Rg7 Qh8 Rh7 Qcb2 c1Q Qbc3 Qb2 Qc4 Qb1 Qe6 Qb2 Qc8 g1B+ Kh1 Qf6 Re6 Nf8 Be3 Bf2+ Kh2 Rg7 Bh7 Ng6 Bg8 Rh7 Re4 Qfb6 d3 Bh4 Bf2 Bf6 Rd2 Ba1 Rc7 Bb2 Rc5
k2K4/3p2n1/BrPP1B2/bB1Qq1Q1/2r1q3/1p1nB2b/2RR3r/rq2N2R b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 a4 c5 axb5 cxb4 g4 Qc7 f4 Qd8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Bb2 Rh4 Bc1 Rh8 Kf2 e5 c4 a5 d4 f3 Kg3 e4 Kf4 f2 Ke5 a4 h4 a3 c5 g3 c6 e3 f6 a2 h5 g2 d5 e2 h6 e1Q+ Be2 f1R h7 b3 b6 Ne7 Kd6 Rf4 b7 Ra6 g6 Rc4 g7 Qda5 g8B Kd8 f7 Rb6 Be3 Na6 b8Q Nb4 Rc1 a1R Rc2 Nd3 Nf3 g1Q Qc1 Qh4 Ne1 Qe4 Qa7 Qc3 Qa5 Ba6 Qc5 Bh6 f8B Kc8 Bg7 Kb8 Bf6 Ka7 Kc7 Ka8 d6 Nf5 Kd8 Ng7 Qd5 Qb2 Rd2 Qg3 Bf1 Qb1 Rhh2 Bf4 Rc2 Be5 Rhd2 Bc3 Be2 Ba5 Bf1 Ne8 Be6 Qgf4 Bg4 Qfe5 Bge2 Rf8 h8R Ng7+ Kc7 Re8 Rh1 Re6 Kd8 Bb5 Bfg5 Rh6 Bf6 Rh2 Qa3 Q5f4 Qg5 Qfe5 Qc5 Rd4 Qd5 Bc4 Qb5 Be6 Qc5 Bh3 Qd5 Nf2 Bc4 Nd3 Ba6 Rc4 Qh4 Nb4 Bf4 Rc5 Bfb5 Nd3 Qg5 Rc4 Be3
5q1R/K1P3R1/1p2rrnN/4pb1N/kP1bn1r1/1Q2qN1r/1Q2b3/R1R1B3 b - - 0 1 illegal: No possible last move
B1b1K2Q/r1p1QQr1/1B2pq1R/2N1kr1Q/P1r3P1/1q1R3R/3bnb2/3n4 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 h5 g4 g5 Nc3 gxf4 Ne4 h4 Ng3 hxg3 Ke2 Kf7 Kd3 Kf6 Kd4 b5 Kc5 g2 h4 f3 a4 e6+ d6 b3 d4 b2 d5 b1R h5 f2 h6 b4 h7 b3 Ne2 g1B Bg2 f1Q+ Be3 b2 Nd4 Qe2 Rh6+ Ke5 f6 Qd3 f7 Ra7 Nb3 Qh4 Ra3 Ne7 d7 Nf5+ d6 Nc6 d8Q Rg8 h8Q+ Qf6 Bd5 Be7 f8Q Ncd4 Qf7 Rg7 Ba8 Rc1+ Qc2 Rf1 Qh2+ Rf4 Qh1 b1R Qhh5 Ne2 Kc6 Rbf1 d7 Bb4 Qde7 Bd2 Bb6 Rc4+ Nc5 Qb1 Rc3 Qb3 d8R Rf3 Rd7 Bf2 Rd8 Rff4 Rh3 Rf3 Rd3 Rff4 Qh4 Ne3 Qg5+ Rf5 Qgh5 Bb7+ Kd7 Bc8+ Kd8 Nd1 Ke8
2K2n2/1p3N2/R1Q5/1qbBr1p1/QPP3Nb/1Qqqk3/1R2q1r1/1Rr1Q1n1 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 c5 d4 cxd4 g5 a4 g6 a3 Bg5 hxg6 Be3 g5 Bc1 g4 b3 e5 f3 e4 Bb5 e3 Be2 d6 Bc4 Be6 Bb2 Bd5 Bf1 Be4 fxe4 axb2 Ke2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 Kf4 Ke6 g5 h4 d5 a4 d3 c4 d2 b4 e2 a5 e1B h5 d4 e5 d3 a6 g3 f6 g2 f7 Rh7 a7 Ke3 h6 Nd7 Qb3 d1R Nh3 g1Q Nf2 Bc5 f8R Rf7 h7 Qc8 h8Q Nh6 Ra6 Rf5 Na3 b1Q Bg2 Rc1 Qf6 Nf7 Nb5 Qc6+ Nd6 Qb5 Bd5 Qg3 Rg1 Rd8 a8Q Qb2 Rh8 Qc3 Rh2 d2 Qe7 d1Q Ng4+ Kd4 Rc2 Qgd3 Rb2 Q1e2 Qc8 Rf8 Qc6 Bh4 Qe8 Rh8 Ke7 Rf2 e6 Nfe5 Kd8 Nf3 e7 Nf8 Kc8 Rg2 Nf7 Rg8 Rd1 Ng1 Qed7 Rg6 e8Q Re6 Re1 Re5 Qee6 Qb6 Qca4 Qb5 Qdc6 Rc2 Reb1 Rc1 Qf5 Qcd2 Qf1 Q2c3 Nf2 Ke3 Qfd1 Bg3 Qe1 Bh4 Ng4+
q3Rk2/1prB1q2/N4nrP/K3n2r/1N1P2RN/1r1QQb1q/2bp1Q2/7N b - - 0 1 legal: proof: g4 a5 d4 c5 b4 cxd4 e3 axb4 Ke2 h5 gxh5 d3+ Kf3 d2 Ke2 Ra4 Bb2 Ra6 Bc1 Ra8 Kf3 d5 Kg2 b3 Bd3 d4 Bg6 d3 Be4 e6 Bf5 Bc5 Bh3 Ba7 Bb2 f6 Be5 Bd4 exd4 fxe5 Kf3 Ra7 Bf1 Ra4 Kg2 Ra8 Kf3 g5 Ke3 e4 h4 b2 a4 e5 f4 g4 c4 g3 f5 g2 f6 Nh6 f7+ Ke7 f8Q+ Kd7 c5 Ng8 h6 Qf6 a5 Qa6 h7 Qd6 h5 Qg6 c6+ Ke6 a6 Nf6 a7 Bd7 c7 Nc6 c8Q Qf7 Nh3 g1R Nf2 Rg6 Nc3 b1R Rg1 Rb3 Nh1 Rb8 Qf3 d1B Kd2 Bc2 Re1 Ra8 Qh6 Ke7 Na2 Bg4 Qcf5 Rac8 a8N Rc7 Qhe3 Kf8 Qff2 Bf3 Rg4 Ke8 Qeg5 Kf8 Bh3 e3+ Kc1 e4 h6 e2 Kd2 Rhg8 h8N Ne5 Qge3 Rg5 Nb4 Rh5 Bg2 Rg6 Bh3 Re7 Nc7 Rd7 Nca6 Rc7 Rd1 e1Q+ Kc1 Qc3 Re1 Qc5 Kd2 Qa7 Re2 Qa8 Re1 Nc6 Qb5 Ne5 Qc4 Rb2 Kc3 d2 Re2 Nc6 Qb3 Rb1 Qd3 e3 Re1 e2 Qe6 Qh7 Qee3 Rb3+ Kc4 Ne5+ Kb5 Qf7 Ka5 Rg8 Rh4 Rg6 Bd7 Qc8 Rg4 Qa8 Rf1 e1Q Rfg1 Qe2 Re1 Qf1 Re2 Qh3 Re1 Rgg5 Ng6+ Kg8 Nh4 Kf8 Rb1 Rg6 Rc1 Bcd1 Rc6 Bc2 Re6 Qc8 Re7 Qa8 Re8+
2Q2rqQ/p1qk4/1pP1b2N/1QBNbPn1/1qr5/5qNR/K3nQ2/3n3B b - - 0 1 illegal: No possible last move
K1b1R1n1/2p2Q2/2Q1nB1p/n1Qn2k1/nN2r1rR/n6B/b2P1B1P/1Q2q3 b - - 0 1 legal: proof: c4 a5 f4 e5 a4 exf4 b4 b5 axb5 d5 b6 dxc4 b5 Qe7 Ra2 Qg5 Ra1 Qd8 g3 f5 Na3 f3 Nc2 f4 Nb4 axb4 Qc2 f2+ Kd1 f3 Qb1 Qd4 Kc2 Bd6 Qb3 Bf4 gxf4 Qd7 Kb1 Ba6 Qd1 Qd8 Kc2 Bc8 e4 Kf7 f5 Kf6 b7 g5 b6 g4 e5+ Kg5 f6 c3 Kb3 c2 Kc4 g3 Kb5 b3 f7 h6 f8Q g2 e6 b2 e7 b1N e8Q Nc6 b8B Ra4 b7 Na5 Ka6 Na3 Ka7 Qe7 Qff7 Rg4 Ne2 g1N Bb2 c1N Nf4 Nd3 Qb1 Nc5 Nd5 Nh3 Qc6 Nf4 Bh3 f1N Nb4 f2 Ka8 Ne3 Re1 f1B Ba7 Ned5 b8Q Nfe6 Qbb5 Na4 Bf2 Bc4 Qbc5 Re4 Re2 Rh7 Bbd4 Rg7 Ra2 Rg6 Rc2 Ba2 Rc4 Qd6 Bc3 Qg3 Rd4 Qg1 Re3 Qe1 Bb2 Re5 Rh4 Re4 Re2 Rf6 Bbd4 Rff4 Bb2 Rg4 Bf6+ Kf5 Qh5+ Ng5 Qd1 Rf4 Re7 Re4 Qf7 Ne6 Qb1 Kf4 Re8 Kf5 Be5+ Kg5 Bf6+
1B1q1RNK/5b2/4nB2/2Q1B1n1/2r2ppQ/2b3rP/k1b1PB1n/N1b3Qn b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 axb5 g5 g4 gxf4 c4 e5 cxd5 Ba6 g5 Bc8 Bh3 e4 Bg4 hxg4 Ra3 Nf6 Rd3 Ng8 Rf3 exf3 Kf2 Ke7 d4 Kd6 h3 c5 g6 a5 b6 f5 g7 c4 b5 a4 b7 a3 b6 a2 Qf1 a1B Na3 c3 Bd2 c2 Be1 c1N Nc2 Nf6 g8Q Nh7 Qg5 Na6 b8B+ Nc7 b7 Bc3 Na1 Be6 Qh5 Ra3 Qg2 Kd7 d6 Kc6 d7 Kb5 d5 Kc4 d6 Bf7 Rh2 Ne6 Qf1 Qg5 d8Q Bh6 d7 Rg8 Qe7 Rc8 d8B Qf6 Qh4 Nhg5 Qg2 Qh8 Be5 Nd3+ Kf1 f2 b8B Rc5 Nf3 Kb4 Qa7 Rc4 Bdf6 Qd8 Nd4 Rb3 Qc7 Ka3 Qc5+ Ka2 Qg1 Ra3 Kg2 f1N Rh1 Nh2 Bf2 f3+ Kg3 Rb3 Nc6 Ra3 Be3 f2 Ne7 f1B Bf2 Bg2 Ng8 Bd5 Qg2 Bc6 Rf1 Ba4 Qg1 Bc2 Qh5 Ne4+ Kh4 Bc1 Qh6 N6g5 Qh8 Ng3 Qh5 Nh1 Qh8 Be6 Kh5 Nf4+ Kh6 Bf7 Kg7 Rb3 Qh4 Nfe6+ Kh8 f4 Rd1 Be1 Rd7 Rg3 Re7 Bed2 Re8 Bc3 Rf8
4Q3/r1nr1bQK/PnBB2Q1/2qNb1Rn/1Br5/2rp3k/pN3P2/2n4B b - - 0 1 legal: proof: b4 c5 g4 a5 d4 cxd4 e4 f5 exf5 h5 gxh5 axb4 a4 Rh6 Ra2 Rh8 Ra3 bxa3 Ke2 Kf7 Kf3 Kf6 Ke4 e5 c4 d5+ Kd3 b5 h4 g5 c5 a2 c6 b4 a5 g4 c7 g3 a6 b3 h6 b2 h7 g2 h5 e4+ Kc2 e3 Kd3 Kg5 f6 Be6 c8B Ra7 f7 Bg7 f8B Nf6 h6 Qb6 Bb4 Nh5 Bbd2 Nd7 Bb4 Qc5 Bb7 Bf7 Nd2 b1N Qc2 Kg4 Bc6 e2 Nc4 e1R Nh3 g1N Nf4 Rc8 h8Q Ne2 h7 Na3 Bg2 Be5 Rg1 Nb5 Nb2 Nb6 Qe8 Nc7 h8Q Rf1 Be3 Rc1 Bh1+ Kh4 Qb1 Rc4 Rg5 Nc1+ Kd2 d3 Qg7 d4 Nd5 Bh2 Bf4 Kh3 Bd6 Be5 Kd1 d2 Qbg6 Nd3 Ke2 d1R Kf3 Nc1 Ke4 Rd3 Kf5 Rdc3 Rg2 d3 Kg5 Rd8 Kh6 Rd7 Kh7 Na4 Rg4 Nb6 Rg5
QB4K1/4q1N1/b1nRP1p1/bqN2r1P/3B1q2/1r2QB1b/q1pQ4/k2q1Q2 b - - 0 1 illegal: No possible last move, all moves rejected
1qb1BR2/B4BbP/R1n5/1pP3bQ/2Q3q1/Q1rqk1B1/2qp4/q2rN1K1 b - - 0 1 legal: proof: d4 f5 b4 c5 e4 cxd4 exf5 a5 g4 axb4 f4 Kf7 f6 Ke6 f7 Kd6 Ba6 Kc7 Bf1 Kc6 g5 Na6 f5 Nc7 Nc3 Nd5 Ne4 Ndf6 gxf6 h6 Nf2 h5 Ng4 hxg4 Kf2 Kd5 a4 Ke4 c4 e5 h4 d5 c5 g5 h5 b5 a5 d3 a6 d2 a7 b3 h6 g3+ Kg2 g4 h7 d4 Be2 b2 Rh2 b1Q Bf1 d3 Ra6 Ne7 Nf3 Qc2 Kg1 g2 Ne1 Bg7 f8B Nc6 f7 Ke3 f6 e4 Bd6 Qc7 f8Q Qb8 Qe7 Rd8 f7 Rd7 Bb2 Rd8 Qa1 d1Q f8Q Qf3 Rh1 d2 Bg3 Rd3 Qfe8 Rc3 Qh5 Qe2 Qeh4 Qed3 Kh2 g1B+ Kg2 Bh2 Qa3 Bg1 Be2 Bh2 Rf1 Bg1 Bc7 g3 Rf8 Bf2 Kh1 g2+ Kh2 Bg3+ Kg1 Bf4 Bb6 Bg5 Ba1 Kd4 Bg4 e3 Bb2 e2 Be6+ Ke3 Qc4 Rb3 Be5 Rb1 Kh2 Rd1 Bg3 g1Q+ Kh3 Qf1+ Kh2 Qf5 Bf7 Qe6 Nf3 e1Q Be8 Qf1 Ne1 Qff6 Kg1 Qa1 Bf7 Qg4 Be8 Qbf4 Bf7 Rb8 a8B Rb7 Bd8 Rd7 Bb6 Qb8 Ba7 Rd4 Qd5 Rb4 Qc4 Rb3 Bb7 Rc3 Be8 Ne7 Bd5 Nc6 Bdf7
2QqRq1N/5npb/4Pr1q/PR4Bk/1b1q2QN/n2q4/p5Kn/3N1RN1 b - - 0 1 illegal: No proof kernel
1bK4B/1R4p1/Pr1NnQ1q/qBn1R2k/1Rnn1BPB/6Qp/b4nb1/8 b - - 0 1 illegal: No possible last move
1kB5/3N3r/4BBn1/2NK2pq/5Q2/Bn1RbQr1/nPPp3q/qNr4q b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Qe1 h5 Qd1 f4 Ke1 Bb7 Ra6 Bd5 Rg6 Be6 Rg5 Bf5 gxf5 Ne7 Rg6 Ng8 Rg4 hxg4 Kf2 g5 h4 d5 e4 Kd7 e5 Kc7 h5 a5 h6 d3 f6 g3+ Ke1 f2+ Kd2 g2 Kc3 d2 Kd4 f3 f7 a4 e6 a3 e7 a2 e8B a1N h7 Qd6 Rh6 Nb3+ Kd3 d4 Kc4 d3 Bd7 Nc6 b6+ Kb8 b7 Ra3 Bc8 Qh2 Rh3 Bc5 f8Q Be3 Kd5 Ra1 Qe2 d1Q Bd2 Ra3 Ba5 d2 Bb4 Ra1 Ba3 Nb4+ Kc4 Na2 Kd5 Ka7 b8N Ne7+ Ke4 Ng6 Nd7 Ka8 Nc5 Kb8 Qd3 Qe2 Kd5 Qd1 Be2 f1Q Qc3 f2 Beg4 Qa6 Bge6 f1Q Nf3 g1R Ne5 Qh5 Qf4 Rg3 Qd3 Qe1 Qe2 Qeh1+ Qef3 Rg8 h8B Rg7 Bcd7 Qa4 Bc8 Rh7 Bf6 Qa5 Nc3 Re1 Nb1 Rc1 Ba6 Bd4 Bac8 Rg2 Q3g3 Bf2 Bb4 Nc3+ Kc6 Qa1 Ba3 Na2 Kd5 Rgg1+ Qg2 Bd4 Rd3 Be3 Qgf3 Rg3 Ned7+
B4nr1/q3N3/R2Q4/Prn2pkq/q1p3n1/2QNP3/n3b2Q/K1RN2Nr b - - 0 1 legal: proof: f4 e5 g4 a5 b4 axb4 c4 f5 g5 h6 Bb2 Be7 Bd4 Bf6 gxf6 d5 cxd5 exf4 Bf2 Ra4 Bh4 Ra8 Bg5 hxg5 d4 Kf7 Kd2 Kg6 Kc1 b5 Kb2 c5 a4 b3 h4 f3 a5 g4 d6 f2 d5 b4 d7 g3 f7 g2 f8Q Nh6 h5+ Kg5 d6 Ba6 Rh3 Qe8 d8N Ng4 h6 Qh5 h7 Nd7 Qg8 Nf8 Kc1 b2+ Kc2 b3+ Kc3 g6 Nd2 b1N+ Kb2 Nc3 d7 Na2 Nb1 Rb8 Nc6 Rb5 Qg7 Rg8 Ka3 b2 Nc3 b1R h8Q Rc1 d8N Qh4 Rb1 c4 Qgh7 Nh6 Ne5 Kh5 Ra1 g5 e3+ g4 Ndc6 Bb7 Ne7 Kg5 Nge2 g3 Nb1 Ng4 Qb3 Bf3 Kb2 g1N Rh2 g2 Qb4 Nh3 Nd3 Nf4 Nbc3 N4e6 Qe5 Rd1 Rc1 Qh3 Qb3 Nc5 Ka1 Qh6 Rh3 Qa6 Rh6 Qa7 Ra6 Re1 Nef4 Rd1 Be2 f1Q Qd6 Qh1 Bf1 g1Q Nfe2 Qf2 Bg2 Qh3 Qc2 Rh1 Ng1 Qh6 Qb3 Qc2 Nd1 Be2 Qc3 Qa4 Ba8 Qg6 Qh3 Qh5 Qhh2
r3R1k1/2Q1Qn1R/4b2Q/pq2N1B1/2p3R1/2nq1Bqn/2b1Q1PP/4bK1b b - - 0 1 illegal: Other
R4nQ1/rQRNq3/P1Qk2N1/2p5/3r4/q1rpbP2/3br1q1/NK1bB2N b - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 g4 e5 gxh5 exd4 b4 b5 e5 Nc6 Bd3 Nce7 Be4 fxe4 Nc3 Nd5 Nb1 Nc3 Qg4 axb4 Qd1 b3 Qc2 b4 Qd1 Nb5 cxb5 Ke7 Be3 Kf7 Bc1 Ke8 Kd2 Ke7 a4 d5 h4 g5 h6 c5 e6 b2 Kc2 g4 h7 b3+ Kd2 e3+ Kd3 e2 h5 e1B b6 g3 h6 g2 a5 Ra7 b7 Kd6 b8N Qe7 Bd2 Nf6 Qf3 Nd7 Nh3 g1Q Na3 b1Q+ Nc2 b2 Ra2 Qc1 Na1 Rg8 h8Q b1R h7 Rg3 Qg8 Bh6 h8N Nf8 Ng6 Be3 Nd7 Qa3+ Kc2 Rb2+ Kc1 Rc2+ Kb1 d3 Bb4 d4 Qb7 d2 f3 Rc3 Nf2 Qg2 Rh2 d3 Nh1 Rg4 Rh7 Rd4 Qa8 Ba6 Qb7 Bc4 Rg7 Bb3 Rf7 Qd8 e7 Bd1 e8Q Qf6 Nb6 Qd8 Rc7 Qe7 Nd7 Ba4 Rc2 d1R+ Rc1 B1d2 a6 Rg1 Re1 Bd1 Re2 Qg3 Rh2 Rg2 Rh8 Re2 Ba5 Rc2 Bc3 Qg2 Ba5 Bc1 Be1 Rc3 Qc4 Bb3 Qef7 Bd1 Qa4 Ne6 Ra8 Bcd2 Qg8 Nf8 Qac6#
1r4N1/qr1n3n/P3kB2/P2Q2pB/Q1b3qN/1qQ2Q1R/1p2B1nK/qr6 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 f5 g3 a5 bxa5 e5 Be3 exf4 Bc1 f3 Kd2 f2 a4 h5 Kd3 f4 Kd2 Bd6 Ra3 Be5 Re3 f3 Re4 Ne7 Rh4 Ng8 Rg4 Bf4+ gxf4 hxg4 c4 Kf7 e4 d5 h4 b5 h5 g5 c5 b4 c6 d3 Ke3 d2 f5 b3 a6 g3 c7 g2 f6 Bf5 c8B Qf8 a5 Qd6 e5 Qb4 h6 Nd7 h7 Ra7 Be2 f1Q Bb2 f2 Kf3 d4 Kg3 d3 Nf3 Ke6 f7 Rb7 f8Q Qg4+ Kh2 Nf6 Nh4 g1R Bd4 b2 Nc3 Qe1 Nd5 f1Q Qa4 d1Q Ne7 d2 Ng8 Bd3 Qfa3 Bc4 Qf3 Qb3 Bc3 d1N Qb5 Kf7 e6+ Kg7 e7 Kf7 Bd4 Ne3 Be5 Ng2 Qbd5+ Qe6 Bc3 Qa1 Be5 Qf2 e8Q+ Kg7 Bd4 Qg4 Qee4 Rb1 Qc2 Qbe3 Qa4 Qb3 Be5 Qa7 Bd4 Nb6 Bf5 Kf8 Bg6 Nd7 Bh5 Kg7 Nh6 Rc8 Ng8 Rcb8 h8Q+ Kf8 Ng6+ Ke8 Nh4+ Kd8 Qg7 Nh7 Bf6+ Kc7 Rd1 Kc8 Rd3 Kc7 Qff5 Kc8 Rh3 Kc7 Qdf3 Kd6 Q5d3+ Ke6 Qc3 Rf1 Qg6 Rc1 Qgd3 Rb1 Qdd5+
1B1r3n/1rb3NP/3r1bNb/b1pQp2N/2RQRq1q/R1P2k2/1N4q1/3K4 b - - 0 1 legal: proof: e4 d5 f4 a5 b4 axb4 f5 dxe4 Bb2 e5 Bc1 Be6 fxe6 Qd4 Ke2 Qd7 Ke1 Qd8 g4 h5 Bc4 f5 Nf3 f4 Ng1 Nc6 Be2 Nce7 Bf3 Nf5 gxf5 Ra6 Be2 Ra8 Bg4 hxg4 d4 Ke7 a4 Kd6 h4 Kd5 a5 b5 f6 g5 h5 f3 e7 b3 e8Q g3 a6 g4 f7 f2+ Kd2 f1Q a7 g2 c3 b4 h6 b2 h7 g3 Rh5 b3 Ra6 Bh6+ Rg5 Ne7 f8N Qf4+ Ke2 e3 Qd2 Ke4 d5 Ng6 Nh3 g1B d6 g2 Kd1 Kf3 Na3 b1R d7 b2 Rg4 Qh4 Qd4 Rd8 a8R c6 Rc8 e2+ Kc2 e1B Qf7 Bgf2 Nc4 g1B Kd1 Rg8 Raa8 Nh8 Ra3 Rg6 Qe6 Rf6 Ng6 Bd2 Qg8 Rd6 Qf7 Bg7 Qe6 Bf6 Qed5+ Qe4 Rc7 Bh6 Nhf4 Be3 Nh5 Bef2 Qd2 Bb6 Q2d4 Ba5 Rc8 Ra1 Rc7 b1Q Nb2 Qa2 Rc8 Rb1 Rc7 Rc8 d8N Rb8 Ne6 Rbd8 Neg7 Bge3 Nd3 Rb7 Nb2 Qc4 Bd2 Qf1+ Be1 Qg2 Bf2 Beg5 Q5c4 Qf5 Re4 Be3 Qdd5 Beb6 Bc5 Qfg5 Qcd4 Qgf4 Rc8 Bc7 Ba7 Qe3 Bb8 Qef4 Ra4 c5 Rc4 Bcb6 Rc6 Bc7 Ra6 Bb4 Ra1 Bba5 Ra3
nq2Bk1N/qb3p1P/3P1Bq1/2bRQ1Q1/n2N2b1/2nQp3/3nr3/K1N4Q b - - 0 1 legal: proof: d4 h5 g4 g5 a4 a5 e4 b5 c4 bxc4 b4 d6 f4 Ra7 e5 Rb7 d5 Rb5 axb5 Be6 Ra2 Bd7 Rg2 Bc8 exd6 gxf4 g5 Rh7 Rg3 Rh8 Rg4 hxg4 Kd2 c5 Kc3 e5 Kb2 g3 h4 a4 g6 e4 b6 c3+ Ka2 c4 b7 f3 g7 c2 b5 f2 b6 a3 h5 e3 h6 c3 Bc4 f1B Nh3 g2 Rg1 Be2 Bb2 c1N+ Ka1 a2 Nd2 c2 Nb3 Na6 b8Q Nc7 b7 Ne7 g8Q Na8 Qg5 Nd3 Bf6 c1N Nf4 Beg4 Ng6 Nb2 h7 Rg8 Qf1 Na4 Nh8 Qc7 Rh1 g1Q Rh5 Qb6 Qc7 Rg6 b8N Bb7 Qc5 Qc7 Nc6 Qb8 Bb5 Rh6 Rh1 Rh2 Qd1 Rg2 Rh5 Re2 Qc3 Qg2 Qh1 Qe4 Qb2 Qg6 Ncd4+ Nc6 Bd3 Na5 Be4 Be7 d7+ Kf8 Bd3 Bc5 Bb5 Nc4 Qc3 Nd3 Nc1 Nd2 d6 Ndb2 Qd3 Nc3 Qe5 Qe8 d8Q Nba4 Qa5 Qb8 Be8 Bb6 Qf4 Nc5 Kb2 Ba7 Re5 Bb6 Qg5 a1Q+ Kc2 Qa4+ Kb2 Ba7 Qab5 Bb6 Rf5 Qaa7 Re5 N5a4+ Ka1 Bc6 Qbd5 Bc5 Qe6 Bb7 Rd5 Bb6 Qef5 Bc5 Qe5
1R1b4/2pBk1b1/pnK1NNQQ/4PN2/2nq2Bq/1P2N3/3B4/n2qqbr1 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 Ra3 e6 Rc3 exf5 Rf3 f4 h4 gxf3 g4 a6 g5 Ra7 h5 Rb7 Rh4 Rb6 Rh1 Rg6 hxg6 Be6 Rh5 Bd7 Rh1 Bc8 Kf2 h5 d4 f5 e4 h4 b6 h3 b7 h2 e5 c3 b3 c2 g7 Nc6 b8N Na5 g6 Ke7 d5 Nf6 g8Q Nd7 g7 Nc4 Qd2 Ndb6 Bh3 Bb7 Qh7 Rg8 Qg6 Bc6 Ne2 Bb5 Rd1 h1Q Bg4 Qh4+ Ng3 Qd6 Nd7 Qb4 Bb2 c1B Na3 Qc5+ Qe3 Qd4 Bc3 Bd2 Nf6 Bc1 Ke1 f2+ Ke2 f1N Bd2 f3+ Kf2 f4 d6+ Kd8 d7 Ke7 Nc2 Ba3 Kg1 f2+ Kg2 Bb4 Kf3 Bd6 Qee4 Nfe3 d8N Ba3 Rg1 Bd6 Rg2 f1Q+ Rf2 Bc5 Qh6 Qe1 Qeg6 Bd6 Ne6 Bb4 Na3 Nc2 Rh2 Na1 Nc2 Bc5 Ne3 Qd1+ Kf2 f3 Rh1 Rh8 g8B Bg7 Bf7 Bd6 Be8 Rg8 Bd7 Bc5 Rf1 Qe1+ Kg1 f2+ Kg2 Bd6 Kf3 Bc5 Rg1 Ba3 Rg2 f1Q+ Rf2 Qc5 Ke4 Qfe2 Nfh5 Q2d1 Rf8 Bc1 Nf6 Qd4+ Kf5 Na3 Rb8 Bf1 Qgh5 Nac4 Q5g6 Qc3 Ke4 Qb4 Kd4 Qc3+ Kc5 Qd4+ Kc6 Ba3 Ba5 Bc1 Ng2 Bg5 Bd2 Qf4 Nfh5 Bh8 Qc2 Qd4 Bf3 Kf7 Ne3 Bd8 Nf6 Ke7 Qd3 Rg5 Qdg6 Bg7 Be2 Rf5 Bh5 Rf2 Be2 Rg2 Bg4 Rg1 Ngf5#
5QNb/1p2q3/1K3BrP/3p1qn1/qB1PQ3/2B1n1N1/1NBk1rrR/n6n b - - 0 1 illegal: No possible last move
2n3R1/Qn1n1np1/pQbnr1b1/k7/B1P1R3/N2n1N2/1N1q1PKb/1R5R b - - 0 1 legal: proof: e4 f5 d4 fxe4 g4 b5 a4 c5 Ne2 cxd4 Be3 h6 Bg5 hxg5 Ng1 a6 axb5 Ra7 Be2 Rc7 Bd3 Rc5 Bf1 Rf5 gxf5 Qc7 Na3 Qb6 Nb1 Qd8 b4 d5 c4 Kd7 h4 Kc7 f6 Kb6 h5 e5 h6 e3 h7 g4 f7 g3 Qf3 e2 Qc3 g2 Qc1 e4 Qg5 d3 Ra5 d4 Rh2 Bf5 Nd2 Bd6 f8N Bg6 Qf4 Ne7 Ndf3 Nd7 Qf6 Nc8 Ne6 Re8 Nh3 g1N Rh1 Bh2 Nc7+ Re6 Nf4 Nh3 h8R Ng5 Bg2 Nf7 Ra3 Qf8 Rh4 Qd6 Rb3 Qd5 Rb1 Qg5 Kd2 e1N Kd1 d2 Ke2 d1B+ Kf1 e3 Nd3 Ba4 Re4 Qh6 Nb2 Nd3 Bh3 e2+ Kg2 Qd2 Qd8 Kb7 b6 N3c5 Nb5 d3 Na3 Bc6 b5 e1N+ Kf1 Nc2 Kg2 Nd4 Qf6 Nf5 Qd4 Kb8 b7 Ka7 b8R N5d6 Ra8+ Kb6 Bg4 Na7 Rg8 Ka5 b6 Ncb7 Qf6 Nac8 Qd8 Na7 Qb8 Nac8 Qa7 Qc1 Bh3 d2 Bg4 d1N Bh5 Nbd8 b7 Qd2 b8Q N8b7 Bg4 Nc3 Bh3 Na4 Bg4 Nac5 Bh3 Nd3 Qc7+ Ndb6 Qcb8 Re5 Bd7 Re6 Qc7 Bd5 Bb5 Bc6 Qcb8 Nd7 Ba4 Nbd8 Qb3 N8b7 Qbb6+
4N1r1/3N1pBb/1N1Q4/P1P1nrR1/Rkqn1Q1n/n1N1n2p/1K1Rn2r/8 b - - 0 1 illegal: No possible last move
6rN/3bp1Nb/3P1rQ1/1B2n3/1Pb2n1k/1RQ1b3/pNR1Q2b/1r1n2NK b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 g5 axb5 d5 f5 dxc4 h4 Nf6 g4 Kd7 b3 Ke8 h5 Qd4 Ba3 Qd3 Bd6 Ng8 Bf4 gxf4 g5 Qd6 Nh3 Bh6 Ng1 Qg6 hxg6 Bf8 Kf2 c5 Kg2 a5 d4 h5 f6 c3 d5 e3 b4 a4 d6 e2 g7 Kf7 b6 Kg6 f7 e1R b7 a3 Rh4 a2 Bb5 c4 Rg4 h4 Nd2 Kh5 g6 f3+ Kh1 c2 Ba4 c1B Qc2 c3 Nb3 f2 Qe2 f1B Bd7 c2 Ba4 h3 Rg2+ Kh4 Qe6 h2 Qc4+ Bf4 Nd4 c1N Qc3 Nh6 g8Q Bc4 g7 Ne2 Ne6 Rb1 Bb5 Nc6 b8N Bd7 Na6 Ne5 Nac5 Nhg4 Na4 Rh6 Nb2 Ne3 Qh8 Re8 g8Q Nd1 Qg6 Bg3 Qe3 Nf4 Qe2 Bg7 Rf2 Rg8 f8N Bf6 Rf3 Bf2 Rb3 Be3 Qhg7 Bg5 Qe4 Rf6 Qeg6 Nh5 Qh8 Bgf4 Ng7 Bg3 Nh7 Bgf4 Ng5 Bg3 Nf7 Bgf4 Ne8 Bg3 Qhg7 Nf4 Nh8 Rf5 Q7h7+ Nh5 Qf1 Rc1 Ng7 Rf6 Qc2 Bgf4 Qhd3 Bg3 Kg2 Bgf4 Qfe2 h1B+ Kf1 Be4 Qcc3 Bh7 Kg2 Bg3 Qg6 Bh2 Kh1 Nf4 Rb1 Rc2 Rc1 Rd2 Nd3 Rb2 Rc2 Rb1 Nb2
N6n/RB1nPn1B/1N4r1/4pPr1/b3K1Qn/pQrQ1Q1q/1B1r1k1n/8 b - - 0 1 legal: proof: e4 e5 b4 g5 d4 b5 c4 f6 cxb5 Kf7 h4 gxh4 a4 Ke8 a5 Bc5 Ra3 Bb6 axb6 Kf8 Re3 exd4 e5 Kf7 e6+ Ke8 Re5 fxe5 Ke2 Ke7 Kf3 Kd6 g4 Kd5 e7 a5 g5 c5 b7 h5 b6 h3 b5 c4 g6 h4 g7 c3 Qe2 d3 Be3 d2 Bh6 Kd4 Na3 d1R Rh2 d5 Nb1 a4 Bg2 c2 Bf4 c1R Nd2 a3 Nf1 Rh6 Bg3 Nd7 b8Q Rg6 b7 Nh6 g8B Rc3+ Ne3 Nf7 b6 Rd2 Bh1 Nh8 Rg2 h2 Bf4 h3 Bh7 Qf8 Rg3 Qh6 Rg4 Ra4 Bg2 h1N Qa8 h2 b8Q Ng3 b7 h1N Qd6 Nf1 b8Q Nhg3 Qb3 Nf5 Nh3 Bb7 Bh1 Bc6 Ng5 Rac4 Qed1 Ba4 Ne6+ Kd3 Qda6 d4 Nc7 Nd6 Ned5 Ndf7 Nb6 Qh4 Q8c8 Qh5 Nca8 Nh2+ Kg3 Qh6 Bb7 Qh5 Qh1 Ke2+ Qf3+ Kf1 Be3 d3 Bd4 Rg5 Qab5 Rc6 Q5c4 Rcg6 Qcd5 Rc7 Bb2 Rc3 Qd6 Rdc2 Qdd5 d2 Qdd3+ Ke1 Kg2 d1N Qcc4 Rd2 Qcf4 Bc6 Qg3 Bb5 Ra4 Qh6 Qgg4 Ne3+ Kg3 Ng2 Ra7 Bc6 Qf6 Qh5 f4 Ba4 f5 Qh6 Qc6 Nh4 Qcf3 Ng2 Qfd5 Nf1+ Kf3 Nh2+ Ke4 Qh3 Qdf3 Nh4 Qfd1+ Kf2 Qd3 Nd8 Qh1 Ndf7 Qhf3+
1R1bN2R/bQp1nbk1/8/1KNP1Br1/1p1b4/1N1r2bQ/1QP1n1N1/b4b2 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 a5 a4 b5 Ba3 f5 gxf5 h6 Bb2 Qd3 Be5 axb4 Bf4 b3 Be3 b4 Bg5 Qb5 axb5 hxg5 Ke2 Kf7 d4 e5 h4 b2 f4 g4 h5 g5 h6 g3 b6 g2 h7 e3 Kd3 e2 Kc4 e1B f6 g4 b7 g3 f5 e4 Qd3 e3 Nd2 b1B Nb3 e2 Nf3 g1B Kb5 g2 Nh4 Ba2 Qh3 Nc6 b8Q Bg7 Qb7 Nge7 d5 Ba7 Rh2 g1B Ng2 Rg8 h8Q Bg3 Rh1 e1B Bd3 Kf8 f7 Be6 Be4 Bd2 Rf1 Ba1 Qb2 Bad4 Re1 Kg7 f8N Bge3 Nd7 Bf7 Nf6 Ra3 Bd3 Bg1 Rh2 Bg5 Ne8+ Kf8 f6 B5h4 Be2 Rg5 Bd3 Ba7 Re6 Bgd4 Bf5 Kg8 Rd6 Kh8 Rd8 Kg8 Nc5 Rd3 Rb8 Kf8 Ka4 Bc4 Nb3 Rf3 Rh1 Bf1 Rh2 Rd3 Kb5 Ne5 Rh1 Nf3 Rh2 Ng1 Rh1 Be6 Rh2 Kg8 f7+ Kh8 f8N Ne2 Nd7 Bf7 Nd6+ Kg7 Ndc5 Bge5 Qg4 Bhg3 Rhh8 Bf6 Qh3 Nc8 Kc4 Bd8 Kb5 Ne7 Ne8+
1K1Qn1R1/PQ2q3/1p1k3n/p2q1r2/1r1Rb2N/N3BP2/5q1R/1nN2nqN b - - 0 1 illegal: No proof kernel
1k3bK1/pQ1qq1Qr/6R1/2P4p/P2R1N2/bQ2b3/2r3Qr/bRn1N1Br b - - 0 1 illegal: No possible last move, all moves rejected
1b2Rr2/p6B/1n2bP2/B2qP1QR/2Qb4/2p1q1qq/BrBQ4/K2b1N1k b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 h4 gxh4 c4 Bg7 a4 bxa4 b5 Bf8 e4 f5 e6 Bd6 e5 Ba3 Nd2 Bf8 Ne4 fxe4 b6 Nc6 Rh2 Nd4 Rh1 Nb5 cxb5 Bb7 Qd2 Ba6 Qd1 Bc8 Kd2 Ke7 Kc2 c5 Kb1 d5 g4 h5 f4 a3 f5 h3 g5 c4 g6 a2+ Kb2 e3 b7 d4 b8Q d3 b6 h4 b7 e2 g7 e1Q Nf3 h2 Be3 h3 Bg5+ Nf6 g8B d2 Qc2 d1B Bh6 Qd5 Bg2 Nd7 Qd2 Qe3 Rb1 a1B+ Ka2 Nb6 Bh7 Bd4 Qc7+ Bd7 b8Q c3+ Ka1 Rg8 Bf1 Rg2 Bd3 Re2 Bc2 Rf2 Rf1 h1Q Nh2 Qhg2 Qc4 Qgg3 Rh1 Re2 Nf1 h2 Rb5 Rg2 Rc5 Rf2 Rc8 Re2 Rg1 h1Q Rg2 Qhh3 Rh2 Rf2 Qb7 Rb8 Qa8 Rb7 Rb8 Bc8 Bg5+ Ke8 e7 Kf7 Ka2 Na4 Rg2 Rb2+ Ka1 Qh1 Qcc6 Qgf4 Rb5 Qde4 Rb3 Be6 Rg4 Qhh3 Qd8 Qfg3 Qc4 Qd5 Rb8 Kg7 Bf6+ Kh6 Ra8 Kh5 Rg5+ Kh4 Rc8 Qg1 Rh5+ Kg4 Bh4 Kf3 Bg5 Kg2 Rb8 Bh6 Qg8 Qeg3 Re8 Kh1 Qg6 Bf8 Be3 Bb6 Qg5 Rf4 Bc5 Q1e3 Bb4 Bd4 Ba5 Nb6 Qh6 Rg4 f6 Rg7 Qg5 Rg8 Bb3 Rh8 Ba2 Rg8 Rb8 Rh8 e8B Bd6 Beg6 Rf8 Re8 Bb8 Bc2
3n2R1/BQ3B1B/bn2BQr1/P1R3rN/8/prb1K2b/3P1pRr/bn5k b - - 0 1 illegal: No proof kernel
6r1/rQ4Br/1B1knp2/1RP1bn2/1K1b4/Rpn1n3/4P1bB/RQNB1b2 b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 cxd4 g5 e5 fxe5 Qf6 Nh3 Qe7 Ng1 Qd8 Nd2 Qf6 Ne4 Ke7 g6 h5 Nf2 Qf3 Ng4 hxg4 Bg5+ f6 Bh6 Qb3 Bc1 Qf7 gxf7 Rh3 Bb2 Rh5 Bc1 Rh8 Kd2 d5 h4 g5 c4 b5 a4 d3 a5 b3 Kc3 d4+ Kb4 d2 a6 g3 e6 g2 h5 d3 a7 b2 h6 b1B h7 g4 Qb3 d1N Ra5 d2 Ra3 g3 Bb2 Nd7 Be5 Nh6 Nh3 g1B Nf2 g2 Bh2 Ne3 Nd3 d1N Nc1 Be4 Qb1 Bf2 Rg1 Nc3 Rh1 g1R Bh3 Bcb7 Bf5 Bg2 Bc2 Bf1 Bd1 Rgg8 Rg1 Nhf5 Rh1 Rd8 a8Q Bbg2 Qb7 Ra8 Rg1 Bh6 Rh1 Ra7 f8B+ Ke8 e7 Nc5 Rg1 Bf4 Rh1 Kf7 e8R+ Bc7 Rd8 Ke6 Rd5 Be5 Bd6 Bg1 Bc7 Bf2 Rg1 Ke7 Rh1 Ne6 Rc5 Kd7 Bb6+ Kd6 Rg1 Rg7 Rh1 Rhg8 h8B Rh7 Bg7 Bg1 Kb3 b4 Rca5 Ne4 Ka4 b3 Kb4 Bf2 Rg1 Bf3 Rg5 Nc3 Ra1 B3g2 R5a3 Bfg3 Rh5 Bd4 Rg5 Ne7 Rga5 N7f5 Rb5 Bge5 c5+
3Nb3/qpR2b2/qP1b3P/p2B2Rq/rk2N3/Qq2b3/2RR1b2/Kn1QN3 b - - 0 1 illegal: No proof kernel
n6N/4R1r1/NbpRBQnR/3pb3/1KN1p3/n3Pqk1/P4Q1N/r2br3 b - - 0 1 legal: proof: f4 g5 fxg5 a5 g4 h6 b4 axb4 g6 Bg7 g5 Bf8 g7 Nc6 g6 Nb8 c4 bxc3 d4 c6 d5 Ra7 d6 Ra8 Bg5 Qc7 dxc7 hxg5 h4 d5 h5 Kd7 h6 Kd6 h7 Ke5 Na3 Kf4 Qb3 f5 Nc4 b5 Rh6 e5 Bh3 b4 Nf3 c2 Kd2 c1R Na5 e4 Qa4 g4 Nb7 g3 Ne5 b3 Rb1 g2 Nd7 g1B Nb6 b2 Qa5 Na6 Nc4 Ra7 Nc5 Re1 Kc3 Bd6 Qb6 Ne7 g8N Kg3 g7 f4 Be6 f3 Nf6 f2 g8Q+ Ng6 Qf7 f1Q Ng4 Be5+ Kb3 Qf4 Qf6 Qf3+ Ka4 Bd7 c8R Nc7+ Kb4 Na8 Rd8 Bc8 Rd6 Rg7 Nh2 Bgd4 Bf7 Bg4 Na6 Rhg8 Qa7 Bb6 h8N Rf8 Be6 Rb8 Rd1 b1N e3 Na3 Qaf7 Qf4 Rb1 Bd1 Rb2 Qf3 Rf2 Qg2 Rf5 Qf3 Rfh5 Rbg8 Rh7 Rb8 R5h6 Bd8+ Qb7 Nb6 Kc5 Rc7 Rf7 Na8 Qb4 Re7 Qc3 Rb1 Qb2 Ra1 Kb4 Bb6 Qe2 Re8 Rg7 Rg8 Re7 Rg7 Qf2+
2n1B3/1K3Bkp/1RQr2pQ/2bb1PqR/r1bp2r1/7P/nR3R2/3nN1B1 b - - 0 1 illegal: No possible last move
b7/Rr3p1b/1r1n3B/P4p2/3n2QQ/QRpPRb1B/Qnk4K/1qNr4 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 exf4 h4 Bf5 g5 Kd7 Nc3 Bh3 Ne4 Ke8 Ng3 Bc8 Nf5 Be7 g6 Bg5 Ne3 Bh6 Ng4 Bg5 Nf6+ gxf6 hxg5 f5 Kf2 Kd7 Kg2 Kd6 e4 Kc5 a4 Kd4 e5 h5 d3 Kc3 e6 b5 e7 c5 e8R f3+ Kh3 c4 g7 b3 g6 b4 a5 f2 d6 h4 d7 b2 Bf4 b1R Bg5 b3 Qf3 b2 Re2 Nc6 Qe3 Nd4 Qe8 Bb7 Re3 Nf6 g8Q Ra7 g7 Ba8 Re5 Rd1 Be3 b1N Bc1 Ne4 Qh7 Nbd2 g8Q Nd6 Ra3+ Kc2 Qe6 c3 Rc5 Qb6 d8Q N2c4 Qdf8 Nb2 Ne2 Rb7 Kh2 h3 Qh4 Rh6 Rb3 Qb4 Bg2 f1B Rc7 Qb6 Be3 Rf6 Nc1 Be2 Qgg5 Bh5 Qgg4 Bg6 Re1 Bh7 Bh6 Qb5 Re3 Qb4 Kg3 h2 Bh3 h1B Kh2 Bf3 Qfe7 Rb5 Ra7 Rb7 Ra3 Qb3 Qf8 Qa2 Rb3 Qb1 Qd5 Ne8 Qa3 Rfb6 Qc4 Nd6 Qca4 Be4 Qa2 Bf3 Q4a3
2N2n2/b2P2Q1/2P1bQ1p/1br3qk/p4B1R/1pQr1R1B/1K3B1r/1n1B2n1 b - - 0 1 legal: proof: b4 b5 e4 c5 h4 g5 c4 f5 exf5 gxh4 a4 d6 Na3 d5 axb5 cxb4 c5 Qd7 Nc4 dxc4 Qf3 Qd5 Qd1 Qd8 g4 Kf7 d4 e5 Kd2 a5 Kc2 c3 f4 a4 g5 h3 c6 e4 b6 h2 b7 e3 f6 Kg6 f7 e2 f5+ Kh5 d5 h6 g6 Kg4 d6 Ne7 f6 Qb6 g7 Nd7 g8B Qc5 b8B Kh5 Qe1 Qg5 Ra3 Ba6 Bh3 Nd5 Be3 Bb5 Bf2 Ra5 Nf3 Rh7 Qc1 e1R Rg1 h1B Rg4 Re2+ Nd2 Be7 Kb1 c2+ Kb2 Nc3 f8Q Bd5 f7 Nb1 Qg7 Nf8 Ne4 Be6 Rf3 b3 d7 Bc5 Bf4 Ba7 Nd6 Rh8 Bh7 Rg8 Qe3 c1N+ Bc2 Rd2 Qf6 Ne2 Nc8 Rd3 Bd1 Ng1 Qc1 Ba6 Qcc3 Rc5 Qg7 Bb5 Qgf6 Nh7 f8Q Rg7 Q8e7 Nf8 Bd2 Rf7 Qg7 Rf4 Qef6 Rb4 Rgg3 Rh4 Bf4 Rf5 Rg4 Rc5 Bf1 Rh1 Bh3 Rh2 Rh4+
n3qB2/b2k1N2/5K2/5P2/Q1bBRqB1/pP1p3n/2r1p2n/RB1rr1RQ b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 Qb6 Nd2 Qd8 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Nh6 Ng4 hxg4 Bd2 Ng8 Be3 Bg7 Bc1 Bf8 Kf2 d5 c4 a5 h4 e5 b6 g3+ Kf3 a4 Kg4 e4 g6 a3 c5 g2 g7 d3 b7 d2 h5 d4 c6 d3 c7 f3 h6 f2 h7 e3 Qa4+ Nd7 b8Q d1R Nf3 g1N Bh3 f1Q Ne5 e2 Bh6 Nf6+ Kg5 Bc5 g8B Ba6 c8R Ba7 Bf8 Bc4 Bg4 Qf4+ Kg6 Re1 Qb7 Nh3 Nf7 Rb8 Rc5 Rc8 Rg1 Qe7 Rc6 Nb6 Re6+ Rc6 Re4 Na8 Qbb3 Kd7 Qd1 Qe8 Qc1 Rd1 Kg7 Rd2 Qf1 Rd1 Qf3 Bb5 Qh1 Rc2 Kg6 Nd5 Kg7 Ne3 Kf6 Re1 Nh6 Nf1 Ba2 Rg8 h8B Nh2 b3 Rg5 Bb1 Rg7 Qb4 Bc4 Nf7 Rd1 Bh5 Rg2 Bg4 Rf2 Qa5 Rff1 Bhg7 Rfe1 Qa4+ Kc8 Bc5 Kc7 Bgf8 Kc8 Bd4 Kc7 Qb4 Kd7 Qa4+
3qb3/3N4/1q2P2B/b2P1R1r/1k3Rr1/1r3R2/p1bNpRQp/2n1QQnK b - - 0 1 legal: proof: h4 g5 a4 gxh4 c3 b5 axb5 d5 Ra3 d4 cxd4 Bh6 Ra1 Bf8 d3 f5 Ra2 e5 Ra6 e4 Ra1 exd3 e4 Ke7 e5 Ba6 Be2 Ke8 Bf3 Bc8 Be4 fxe4 Kf1 Kd7 b4 c5 g4 a5 Kg2 h5 f4 a4 g5 h3+ Kh2 a3 f5 h4 g6 c4 f6 e3 f7 d2 b6 Kc6 g7 Kb5 b7 e2 e6 c3 Qe1 d1B Qf1 c2 Qf2 a2 Bd2 c1R Qe3 Nc6 Qc3 Na5 Nf3 Bc2 Bh6 Rb8 Ne5 Bd7 Rf1 Ne7 g8Q Ng6 Kh1 h2 Qe1 Nf4 Rf2 Be8 Nd2 Nh3 Qg2 Nb3 Nd7 Ng1 Rf5+ Ka4 b5 Bb4 f8Q Ba5 b6 Rg8 Rf2 Rg4 Qf5 Rb1 Rf4 Ra8 b8R Nc1 b7 Rb3 Rc8 Kb4 b8R+ Qb6 Rc3 Ra7 Rf2 Rc7 Qf4 Rc5 Rcf3 Rh5 Rb1 Bf7 Rf8 Be8 Qfg3 Qd8 Qgf1 Qb6 R3f4 Qd8 R2f3 Qb6 R8f5 Qd8 Kg2 h1Q+ Kf2 Qb6 Qd1 Rg7 Qfh3 Rg8 Qhg4 Qh3 Qg7 Qg4 Kg2 h3+ Kh1 h2 Qh4 Qh3 Qg2 Rg4 Qhg3 Qh4 Q3f2 Nh3 Qdg1 Nd3 Rf1 Qhd8 Qe1 Nc1 R1f2 Bf7 Q2f1 Be8 Qgg2 Ng1 d5+
2nb1KR1/2Q1p1B1/B4nN1/2Qb2PR/RQ4b1/2qR3r/p3q1Pp/3k2nr b - - 0 1 legal: proof: c4 c5 a4 f5 e4 fxe4 h4 b5 axb5 g5 d4 cxd4 Nc3 dxc3 hxg5 Ba6 Rb1 Bb7 Ra1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 d5 Ke5 h5 b4 a5 f4 d4 c5 d3 b6 c2 b7 h4 c6 h3 b5 e3 b6 a4 c7 h2 Qd2 a3 Qa5 e2 Qc3 e1N Rb1 d2 Bb2 d1B Qa5 c1Q Qb4 Bdg4 Ne2 Rh3 Ra1 Bce6 c8Q Qdd2 Qcc5 Nf6 f5+ Kh5 Bc3 Kh4 Nf4 Kg3 Ba6 Bg7 Ng6 Bd5 Rf1 Qcb2 Rd1 a2 Rf4 Qe2+ Re4 Qc1 Rd3+ Qce3 Bb2 Kf2 Bd4 Qd2 Bc3 Ke2 Bd4 Kd1 Ba1 Bc6 Ke6 Qe2 Kf7 Nbd7 b8R Nf3 b7 Ng1 Rh8 Rc8 b8Q Nb6 Qc7 Rb8 Red4 Nc8 Rh5 Bh8 Kf8 Bd5 Qa4+ Rb3 Qab4 Rb1 Bc3 Ne8 Re4 Be5 f6 Bd4 f7 Nf6 Qbb5 Be3 Ra4 Bf2 Qcb4 Bb6 Q5c5 Ra1 Kg7 Rc1 f8R Ra1 Rg8 Ba5 Q7a7 Bd8 Qac7 Rb1 Kf8 Rc1 Re3 Qc2 Be5 Qc3 Rd3+ Ke1 Rgh8 Nf3 Qcb5 Ne4 Bg7 Nf6 Re3 Kd2 Qbb6 Rh1 Q6c5 Ng1 Rg8 Kd1 Rd3+
3r2r1/1pN1n2P/pqNpRB1k/b7/1bN2rPK/3n2QN/1R6/Q2b1Qq1 b - - 0 1 legal: proof: d4 h5 b4 g5 a4 c5 bxc5 e5 dxe5 h4 f4 gxf4 g3 h3 Kf2 Qa5 Bg2 Qxa4 Kf1 hxg2+ Ke1 Qa2 Kf2 f5 h4 Kf7 e4 Kg6 e6 d6 e7 a6 e8Q+ Qf7 c4 f3 e5 f4 h5+ Kg5 e6 Qf6 g4 Qe7 h6 Bg7 c6 Qd7 c5 Bc3 e7 Bg7 h7 Qc7 Qf7 Bh6 e8N Ne7 Na3 Bf5 Rb1 Qb6 c7 Nbc6 c8Q Ne5 Nc4 Rg8 Bb2 Bc2 Nc7 Rd8 Qd4 Bd1 c6 Rg8 Qcf8 Rd8 Rh4 Bg7 Rh6 Bh8 Re6 Bf6 Q8e8 Kh6 Nh3 g1B+ Kf1 f2 Kg2 f3+ Kg3 f1R Bc3 f2 Rb2 Rg5 Kh4 Nd3 Qf4 Ng8 Qg3 Ne7 Qh8 Rg6+ Ng5 Bd4 Qhf6 Bc5 Nh3 Bb4 Qh8 Ba5 Qff3 Bb4 Bf6 Rgg8 Qe2 Re1 Qf1 Re4 Na8 Rf4 c7 Ba5 c8N Bb4 Na7 Ba5 Qe2 f1Q Nc7 Bc5 Nc6 Qg1 Qf1 Bcb4 Bc3+ Rg6 Rh2 Bc2 Qe5 Bb3 Qee1 Bc2 Qa1 Bd1 Bf6 Rgg8 Rb2
nrQ5/NP3Rn1/2PrQ1q1/1p5b/2N2kp1/1K2Rnb1/p3nQBn/N3N3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 g4 c5 gxh5 cxd4 a4 bxa4 b4 Rh6 b5 Ra6 b6 Qc7 b7 Qd8 Ba3 Rh6 Bc5 Rh8 Bb6 axb6 Kd2 Kf7 f4 Kf6 h4 g5 c4 e5 Kc2 d5 c5 d3+ Kc3 a3 h6 d2 h7 b5 c6 d4+ Kb3 e4 h5 e3 h6 a2 Qe1 d1N Bg2 e2 Na3 d3 Nf3 d2 Nc2 Bd6 Rf1 Ne3 Rc1 d1N Na1 g4 Rc3 Na6 Qf2 Bc7 Ne1 Ne7 Rd3 Re8 h8N Nc3 h7 Qd6 Ng6 Rb8 h8N Bd7 Nf7 Red8 Nge5 Be8 Nc4 Qe6 Nd6 Bh5 Nc8 Rd6 Na7 Qf7 Rg1 Nf1 Re3 Nh2 Rh1 Qg6 Rf1 Kf7 f6 Nf5 Rg1 Ng7 f5 Qh7 Rf1 Qg6 Nd3 e1N Qe2 Nef3 Ne1 Kg8 f7+ Kh7 f8Q Kh6 f6 Kg5 f7 Kf4 Qf2 Ne2 Qc8 Ba5 Qd7 Nc7 Qe6 Na8 f8Q+ Qf7 Qfc8 Bc7 Nec2 Qe8 Rd1 Qg6 Ne1 Bd8 Rd2 Bh4 Rd5 Bg3 Rg5 Rd1 Rd5 Rd2 Rd7 Rd6 Rf7+
4Bn2/1k1n2N1/rbp2BbQ/5pB1/3PP2r/1b2Kp2/3B1R2/N2bnqQQ b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Ra2 exf4 Rb2 Bh3 axb5 Kd7 b6 Ke8 b5 Bc8 Rb4 axb4 Kf2 Kd7 d4 h5 g4 b3 g5 h3 d6 f3 g6 h2 b7 b2 g7 Ra6 b6 Kc6 d7 Qf6 d8B Be6 Bd2 Ne7 g8Q Bb3 Ke3 Nd7 b8B Ng6 b7 Bc5 Na3 b1B Nh3 Ngf8 Nc2 Bb6 Na1 Bg6 Nf4 Qf5 Rg1 h1N Bf6 Nf2 Ne6 Nd3 Rg2 Ne1 Rf2 Qh3 Qh7 Qh1 Bh3 Qf1 Qh6 Rh7 Ng7 Rh8 Ba7 Rh7 b8Q Rh8 Qd8 Kb7 Qe7 c6 Bb8 h4 Kf4 Qg1 e4 Nc2 Bg5 f5 Qh5 Bh7 Bg4 h3 Qef7 h2 Qe6 h1B Qb1 Bg2 Be5 Bf1 Qh1 Be2 Bh5 Qg2 Qbg1 Qf1 Bf7 Ne1 Ke3 Bed1 Qf6 Ba5 Qg6 Bb6 Qgh5 Bg6 Be8 Rh7 Bef6 Rh8 Qhg4 Rh3 Qh5 Rh4 Qh6
2n1QnB1/4Qbb1/p1r3B1/2b1Q1R1/1P2RQ2/1q2n1pP/1B3pk1/2Kb1r1N b - - 0 1 legal: proof: b4 b5 f4 d5 c4 h5 cxd5 e5 g4 exf4 Na3 hxg4 Nc2 c5 Nd4 c4 a4 Qc7 axb5 Qd8 Nb3 cxb3 e4 Ke7 d4 Kf6 Kd2 Kg5 d6 Kh4 h3 Kg3 e5 g5 d7 f5 b6 b2 e6 b1B e7 a6 e8B f3 d5 f4 d6 f2 b7 f3 Qb3 Bg6 Qa3 Rh6 Qc3 Bf7 Bd3 f1N+ Kd1 Ne7 Qf6 Bg7 Bh7 Kg2 Ne2 g3 Ra5 g4 Bb2 Ne3+ Kc1 Qb6 d8Q Nd7 b8Q Nf8 d7 Qe6 Qdc7 Qb3 Qfe5 Rc6+ Rc5 Bb7 d8Q Nc8 Bg8 Ra7 Qce7 Ba8 Kb1 Rd7 Rhc1 Rd1 Rd5 Rf1 Re1 Kf2 Ra5 g2 Ng3 g1B Nh1+ Kg2 Qf4 g3 Qbe5 Nf5 Qdd7 Bc5 Kc1 f2 Qdd8 Ne3 Qdd7 Be6 Bg6 Bf7 Qee8 Rb6 Qdd8 Bf3 Qde7 Bd1 Rb5 Rc6 Ra5 Ng4 Re4 Ne3 Qc3 Ba7 Rg5 Bc5 Qce5
2B5/B1r1r2k/K1Nn1ppQ/1R1N1r2/B3q2n/1rPq1QB1/p2bP3/b1Q5 b - - 0 1 legal: proof: b4 c5 a4 b5 g4 e5 f3 h5 Ra3 hxg4 Rd3 e4 axb5 Bb7 Rd4 cxd4 d3 exd3 Bh6 Qc7 Bc1 Be4 fxe4 Qd8 Kd2 d5 h4 a5 b6 f6 b7 Kf7 h5 g3 h6 Kg6 h7 g2 e5 a4 b5 a3 b6 a2 e6 Ra7 e7 Nd7 b8B Nh6 e8B+ Nf7 b7 Qe7 Na3 Ne5 Nf3 g1B Bd7 Nd6 Nb5 Be3+ Ke1 Bd2+ Kf2 Bc3 Be3 d2 Ne1 d3 Ng2 d4 Qc1 d1R Rh5 Ba1 c3 d2 Bc8 d3 Nd4 Re1 Nc6 Nf3 Rb5 d1Q Nf4+ Kh6 Bc5 g6 Nd5+ d2 Bfh3 Nh4 Bhd7 Qe4 Bc7 Rg1 b8Q Rg5 Qa8 Ra3 B5b6 Rb3 Ba7 Rg8 Be8 Rg7 h8Q+ Rh7 Qb7 Qdc2 Qa8 d1R Bcb8 Qcd3 Bc7 Nc4 Bg3 Bd6 Qb7 Bf4 Qf8+ Rg7 Bed7 Kh7 Qa8 Re7 Qh6+ Kg8 Qb7 Nd6 Be8 Qdc4 Qa8 Rd3 Ke1 Re3 Kd2 Rc7 Bed7 Rf5 Be8 Qh1 Bed7 Re7+ Kc2 Qc5 Kd3 Bd2 Be8 Qa3 Kd4 Qb2 Kc5 Qe4 Kb6 Qbc2 Ka6 Qcd3 Qb7 Be3 Qb6 Bg5 Qf2 Bd2 Qf3 Qb1 Ra5 Rbb7 Nd8 Rb3 Ba4 Qbc2 Rb5 Qcd3 Qg5 Kg7 Nc6 Kh7 Qh6+
2bBQK2/qQ5R/2QP2kN/1p1Q1nr1/6Bq/1n1Rp1Pb/1B1pr1b1/7b b - - 0 1 legal: proof: h4 f5 b4 d5 d4 a5 h5 c5 h6 axb4 Nd2 gxh6 Ne4 h5 e3 h4 dxc5 fxe4 Bc4 d4 Bf1 d3 Rb1 Bg7 Ra1 Bd4 exd4 Bf5 Bd2 Bd7 Bc1 Bc8 Kd2 Kf7 Ke3 b5 Kf4 h5 Kg5 e3 f4 e2 a4 e1Q c4 b3 g3 h3 c6 h2 c5 b2 a5 b1B a6 h4 a7 h3 c7 Qc3 d5 Qe8 c6 e5 d6 e4 f5 e3 f6 Qb4 Bb2 Bg4 c8Q Qd7 c7 Qd4 Ra3 Rh6 Ne2 Na6 Qb7 Ne7 c8Q Nc5 Qcc6 Nb3 Qd2 Qb4 Nd4 Nf5 Be2 Re8 a8Q Re5 Bd1 Qe7 Qdg2 d2 Qd8 Qc5 Qdd7 Qa7 Qgd5+ Kf8 Q7e6 Qh7 f7 Kg7 Bf3 Be4 Bd1 Bg2 Qee8 Qh8 Bf3 Kh7 Be2 Rf6 f8B+ Rf7 Rb1 h1B Be7 h2 Bd8 B2h3 Rc1 B1g2 Rh1 Na1 Rd3 Nb3 Rc1 h1B Rc4 Rg7+ Kf6 Re4 Ra4 Rf4 Ra5 Rf2 Bf3 Ne7 Nf5 Re2 Nh6 Bc8 Bg4 Rg5+ Kf7 Qhd4 Kf8 Qb4 Nf7 Nf5 Ra4 Qf4 Re4 Kg6 Re7 Qfd4 Nh6+ Kf6 Qed7 Kg6 Rh7 Qb4 Bf3 Qh4 Bg4 Qa3 Qe7 Qa7 Qee8#
1r4r1/2Q3Qr/rn1p1Nn1/3Q1P2/p1B1B1kP/bbKpB3/2R1Rq2/2q1Q3 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 Qb6 Nd2 Qd8 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Nh6 Ng4 hxg4 Bd2 Ng8 Be3 Bg7 Bc1 Bf8 Kd2 Kf7 h4 a5 b4 e5 c4 f3 c5 e4 g6+ Kf6 b6 a4 b7 f2 c6 g3 c7 d3 b5 g2 b6 Ba3 g7 Ra6 Nf3 g1R Qe1 Rh7 Kc3 Ne7 g8Q Ng6 Nh2 Ke5 Be3 Qg5 Rc1 d6 Bg2 f1Q Rc2 Bd7 c8B Qf2 Qc4 Bb5 Be6 Nd7 b8Q Qgf4 b7 Nb6 Qa2 Bc4 Qf8 Bb3 b8Q Qg5 Bc4 Qgf4 Bc1 e3 Be4 e2 Qc7 Q4e3 Qfg7+ Kf4 Ng4 Kg3 Qd1 e1R Nf6 Qef4 Rh2 Qg5 Bg2 Re8 Be4 Rb8 Be3 Qh6 Qe1 Rg2 Bc5 Qc1 Be3 Rg1 Ng8 Kg4 Rg2+ Qg3 Re2 Qf2 Nf6+ Kh3 Qd1 Nh8 Qge7 Rgg8 Qe1 Ng6 Be6 Bc4 Qg7 Bd5 Qb3 Kg3 Qb5 Bb3 Bc4 Kh3 Qd5 Kg3 Nh5+ Kg4 Nf6+
3n1QR1/rrQk2N1/1qp2n1P/1b6/2R1R3/1P2pR1p/N3rq2/K1bBr2N b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 f5 cxd5 h6 e4 fxe4 g4 Bb7 h4 Ba6 h5 Bc8 g5 hxg5 b3 Nf6 Bb2 Ng8 Be5 Ba6 Bg3 Bc8 Bh4 gxh4 d4 g5 Kd2 e5 Kc3 a5 Kb2 e3 f4 e4 f5 g4 b6 e2 f6 e1Q d6 a4 d7+ Kf7 d5 h3 d6 Ke6 b7 g3 h6 g2 f7 e3 Qf3 c6 Nc3 Qf2+ Nge2 Qb6 d8Q g1R d7 Na6 b8R a3+ Kb1 Bb7 Ng3 Ra7 Qf4 Bd6 f8R Nc5 Qc8 Ba6 d8N+ Ke7 Ne6 Rh7 Rf6 Rf7 Ng7 Ne6 Qe5 Bb4 Rf3 Nf6 Ra2 Bb5 Qg8 Rg2 Be2 Bd6 Rf1 Rg1 Rc1 Re1 Nh1 Bb4 Rc2 a2+ Kb2 Bd6 Bd1 Bc5 Qg3 Bb4 Rf8 Nd8 Rd2 Ba5 Rcc2 Bb4 Rd4 Ba5 Rdf4 Kd6 Qh8 Rfb7 Re4+ Kd7 Qg8 Bb4 Qh2 Ra4 Qe5 a1R Re8 Be7 Qf7 Rc4 Rg8 Raa7 Qf8 Ba3+ Ka1 Bc1+ Na2 Rd4 Qg3 Rd2 Rcc4 Rde2 Qc7+
2B1q2R/3bB3/KPP1n2R/3p1kpB/1RNr4/2q1q1q1/Q3p1n1/b1rR2Q1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h6 f4 Qb6 Nc3 Qc7 Ne4 gxf4 g5 Qb6 g6 Qd8 Ng5 hxg5 Ke2 a5 Kd3 e5 Kc4 Ke7 h4 Kf6 b4 d3 c3 d2 g7 e4 b6 d5+ Kb5 a4 b7 a3 c4 a2 c5 f3 c6 e3 h5 e2 h6 f2 h7 Qe8 Nf3 Nh6 g8B Nd7 b8R Ra4 Bf7 Ng4 Ba3 Bg7 Ne5 Nc5 Bh5 Ne6 Bh3 f1Q Nc4 Qf2 Qg1 Qg3 Rd1 a1Q Rb7 Rf8 h8R Ne3 Kb6 Qb2 b5 Ng2 Rh2 Rb4 Ka6 Bd7 Rb8 Qbc3 Rh6+ Qg6 b6 Rf7 Rbh8 Rb1 B3g4 Rc1 Rh4 Rf8 Ne3 Ke5 f6 Qe8 f7 Kf4 Nc4 Bf6 Re1 d1Q Be7 Qdd4 Rd1 Qce3 Rd2 Qdc3 Rd1 Rg8 f8Q Rg7 Bd8 Rf7 Qa3 Ke4 Qb2 Bg7 Qa2 Rf4 Bh3 Bd4 Rg4 Kf5 Bf6 Be5 Be7 Rd4 R8h7 Rd3 Bd6 Nf8 Bb4 Qc2 Bg6+ Kf6 Na3 Be6 Re4 Ba1 Rh8 Qc3 Rc4 Ke5 Be7 Rd4 Rb4 Kf4 Bg4 Bf5 B4h5 Bh3 Bf5 Ke5 Bc8 Bd7 Re6+ Kf5 Reh6 Ne6 Nc4
BR3nQr/2p1q1r1/RbP2N1n/1p2b2k/3Q2qN/2N3q1/pPK1Q3/2N4q b - - 0 1 legal: proof: e4 f5 h4 e5 a4 g5 a5 gxh4 d4 fxe4 dxe5 Bg7 Ke2 Bh6 Ke1 Bf8 c4 b6 a6 d6 c5 Nd7 c6 Bb7 axb7 Nb8 Be3 Bh6 Bd4 Bf8 Bc5 dxc5 g4 Kf7 f4 Kg6 g5 h5 e6 a5 e7 h3 e8N a4 Nd6 h4 Kd2 a3 Kc1 a2 Nc3 e3 Qe2 c4 Nf5 h2 Kc2 h3 Rd1 Bd6 Rd4 Nd7 b8Q Be5 Qa7 Nh6 Rd5 Qc8 Ra5 Nf8 Ra6 b5 Qd4 Qe6 Bg2 Qe7 Nh4+ Kg7 f5 Rh7 Qe1 e2 g6 Kf6 g7 Kg5 g8Q+ Kh5 f6 Rg7 Qf1 e1Q f7 Qg3 Nge2 Qg4 Rg1 h1Q Nc1 h2 Bh3 Qhf3 Qe2 h1Q Rg2 Qgg3 Bc8 Qfg4 Bb7 Rb8 Ne4 c3 Ba8 Ne6 f8N Rc8 Kb3 c2+ Nc3 Re8 Nh7 Nf8 Nd3 c1B Kc2 Bcf4 Nc1 Be3 Rf2 Rb8 Rf6 Rd8 Rd6 Re8 Rd8 Bf2 Rb8 Rd8 Qdd1 Bb6 Qd4 Ng6 Qgd5 Rh8 Qg8 Nf8 Nf6+
4Bn2/1p3P2/bN4B1/pn3RK1/q3r1QR/1rb3r1/P1Q1pk2/R2rR1qB b - - 0 1 legal: proof: e4 c5 c4 f5 f4 fxe4 b4 d5 cxd5 g5 bxc5 Nc6 f5 Nb8 g4 Bg7 Bb2 Bf8 Be5 Na6 Na3 Nb8 Nc4 h6 Bf4 gxf4 g5 h5 Ne3 Qa5 Ng4 hxg4 Ke2 Qb6 Ke1 Qd8 Ke2 Kd7 h4 e5 d4 a5 h5 g3 g6 e3 Kf3 g2 Kg4 e2 c6+ Kd6 h6 e1Q c7 f3 h7 e4 g7 f2 Bb5 f1R Be8 e3 Ne2 Qf2 Nf4 e2 Qc2 Be6 c8B Rd1 Re1 Qd7 Kg5 Nf6 g8B Qa4 Bg6 Qg1 Bd7 Bf7 Be8 Nfd7 f6 Be6 Bg8f7 Bg7 Be4 Bf5 Bg6 Nc6 f7 Nf8 Bf3 Rg8 h8R Na7 Rh4 Nb5 Be4 Rc8 Bf3 Rc4 Be4 Kc7 d6+ Kb6 d5 Kc5 d7 Kd4 d8R Ke3 d6 Kf2 d7 Bc3 Nd5 Rcd4 Bf3 Bd3 Nb6 Re4 Rc8 Rb1 d8Q Rb3 Rc5 Rg7 Rf5 Bc4 Kh5 Bd3 Qc8 Rg8 Bh7 Rg3 Bg6 Nc7 Rb5 Qh2 Rec1 g1R Bh1 Qg2 Re5 Ba6 Qg4 Nb5 Kg5 Re1 Rd5 Qg1 Re5 Rd1 Rc5 Rd2 Re1 Rd1 Rf5+
B4b2/B2Bp1P1/b2n2R1/R1r1Pb2/2Q1Np2/1Kpkq1q1/QB1r1q2/1r5Q b - - 0 1 legal: proof: g4 b5 c4 g5 f4 gxf4 a4 d5 h4 dxc4 b4 a5 h5 Bd7 g5 Nc6 Nc3 Ne5 Nb1 Ng6 hxg6 Nh6 Na3 Bc8 Nc2 Nf5 axb5 Nh6 b6 Ng8 b5 Bg4 Nb4 axb4 Rh4 Be6 Rh1 Bc8 e4 Kd7 d4 Ke6 Kd2 h5 Kc2 f5 d5+ Ke5 b7 c5 b8Q+ Qc7 d6 h4 g7 c3 g6 h3 d7 b3+ Kb1 c2+ Kb2 f3 d8Q c4 b6 f2 b7 h2 Q1d2 Nh6 g8B Ra5 g7 Nf7 Q8d3 Nd6 Bg2 f1Q Ne2 Qf2 Nc3 Rc5 Rg1 h1R Be6 R8h2 Ra5 f4 Ka3 b2 Qa8 b1B b8B Ba6 Bb2 c1Q Bd7 Qc8 Q2c2 Qce3 Ba7 Qd8 Qf1 Kd4 e5 Qeg3 Qb3 Qb6 Ne4+ c3 Qa2 Qfe3 Bf3 Rd2 Qb5 Bd3 Kb3 Qef2 Rg2 Rb1 Qc6 Qh3 Rg6 Qhg3 Nf6 Bf5 Ne4 Qd8 Qf1 Qb6+ Qcb5 Qe3 Qh1 Qef2 Qb4+ Kd3 Bg2 Rc8 Bf3 Qbe3 Bg2 Rc5 Qd4+ Ke2 Qc4+ Qd3 Ng5 Ke3 Ba8 Qd4 Qe6 Kd3 Ne4 Qde3 Qc4+
N3qn2/n1b2Q1P/Np1Rbp2/3k3b/1Pb1N1q1/1R1pKN2/3r1Q2/b2BQ3 b - - 0 1 legal: proof: d4 a5 g4 e5 f4 exf4 b3 h5 gxh5 a4 d5 a3 Bb2 axb2 a4 b6 d6 Ra7 a5 Rb7 a6 cxd6 axb7 d5 Qd3 d4 Qd2 Na6 Qd1 Nb8 Kd2 Ke7 e4 Kd6 c4 g5 h4 f6 h6 g4 e5+ Kc5 e6 d5 h7 g3 b4+ Kc6 e7 d3 e8N f3 h5 g2 c5 f2 h6 d4 Qe1 Nd7 b8N+ Kd5 c6 Bd6 c7 Nf8 Nf3 g1B Be2 f1B Ra3 Ne7 Bd1 Be6 c8Q Bc7 Qb7+ Nc6 Rb3 Rg8 h8Q Rg2+ Qf2 Bgh2 h7 Bhe5 Qa7 Qd7 Qa2 Na7 Na6 Qg7 Qg8 Qg4 Qf7 Be2 Qe1 Rf2 Na3 b1Q Nc4 Qa1 Qb2 Qa4 Ncd6 Qd7 Ne4 Qc8 N8d6 Qe8 Nb5 Rh2 Kc1 Bf1 Qbf2 d2+ Kc2 Rg2 Rh3 Bc4 Rc3 Bb3+ Kd3 Rh2 Rc6 Rg2 Bc2 d1B Kd2 Be2 Bd1 Ba2 Nh4 Rh2 Rb3 d3 Ke3 Ba1 Nf3 Rg2 Rb1 Bc4 Rb3 Rh2 Nfd4 Qg2 Qfg1 Bh5 Nf3 Qg4 Qgf1 Ra2 Qff2 Bce5 Nh2 Bb8 Nbc7+ Ke5 Na8 Kd5 Nf3 Rd2 Nec5 Bh2 Ne4 Bc7 Rd6+
2RQQ3/b4q2/b2Qr1B1/K2b1R1P/1n3Qq1/2Rpp2k/1Pn2bpB/2N4q b - - 0 1 legal: proof: d4 a5 g4 f5 f4 h5 e4 fxe4 a4 b5 f5 c6 Nc3 Kf7 Nd5 Ra6 axb5 c5 g5 cxd4 Ne3 Rf6 gxf6 Ke8 Ng4 hxg4 Kd2 Kf7 c4 d5 h4 e5 b6 g5 h5 a4 b7 d3 Kc3 g3 c5 d2 Kb4 g2 Qg4 d1B Qh4 g4 Nf3 g1Q Ra2 d4 Bd2 a3 Ra1 d3 Qh2 g3 Bc3 a2 Bg2 e3 Nd2 e2 Bd4 e1B Bc3 e4 Kb5 e3 c6 Bb3 c7 Bd5 Ka4 Qe8+ Ka5 Ne7 Nb3 Rh6 Rc1 Bf2 Be4 Na6 b8Q Nb4 Be5 Ba6 c8R Nc2 Qd6 g2 Qd8 Qd1 Rf1 Qg4 Qh4 Bg7 Bh2 Rg6 Qg5 Qg8 Qf4 Nc6+ Kb6 N6b4 Ka5 Bf8 Rc3 Bc5 Qdd6 Bd4 Rc8 Ne1 R1c3 Nec2 Nc1 Ba7 Qd8 Qf8 Qdd6 Kg8 f7+ Kh7 f6 a1Q+ Na2 Qg7 f8Q Qf7 Qe8 Qb1 Qdd8 Qbd1 Qfd6 Kh6 Nc1 Kg5 Bf5 Rh6 Bg6 Kh4 Qf4 Kh3 Qdd6 Qb7 f7 Qe1 f8Q Qf7 Bh7 Re6 Bg6 Bg3 Rf2 Qh1 Qdd8 Bh4 Q4d6 Bg3 Rf5 Be1 Qh6 Bf2 Qhf4
q1NBB3/1nN5/3n4/B3Q1PK/qnR2pNp/2n5/k1Nr1rpP/1q2Q1b1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 d5 Nf3 b5 axb5 d3 Ng1 d4 Bh6 Bg4 Bc1 Be6 f4 Bd5 exd5 g5 Ra2 gxf4 Ra5 Qc7 Ra1 Qd8 b4 Kd7 Ra6 Qe8 Rg6 Qd8 Rg3 Ke8 Rh3 Qd6 g4 Qd8 Rg3 fxg3 c4 Kd7 g5 Kd6 b6 a5 b5 Kc5 b7 Kb4 b6 f5 d6 e5 c5 h5 c6 g2 Kf2 f4 Kf3 d2 c7 h4 Kg4 e4 c8Q e3 d7 e2 Bb2 e1N Ba6 a4 Qdc1 Kb3 Q8c2+ Ka2 Qh7 d1Q+ Be2 a3 Qg7 d3 Nh3 d2 Nf2 Nc6 b8N Nh6+ Kh5 Bc5 b7 Na5 Ng4 Qa4 Na6 d1N b8N Nc3 Nc7 Nb7 Qe5 Nd3 Qe1 Nb4 Nc6 Bg1 Na7 Qf8 d8B Nf7+ Kg6 Rh7 Nc8 Nfd6 Bb5 Rd7 Kh5 Ra5 Bc6 Rd5 Bc1 Rd2 Bb5 Rf2 Bd2 Ka1 Bc6 a2 Na3+ Kb2 Nc2 a1Q Bb5 Qb1 Bc6 Ka2 Bb5 Re7 Be8 Rd7 Be3 Qg8 Bb6 Qd5 Ba5 Qdc6 Nd5 Qa6 Nc7 Qa8 Qe6+ Ncd5 Qd1 Re7 Nce3 Rd2 Qe2 Bf2 Rc1 Bg1 Rc4 Nc3 Qe1 Rf2 Qd5 Rd2 Nc2 Ree2 Qf5 Rf2 Qfe5
K5R1/2Rr2B1/Rr6/nn1np2B/1q1kQPpB/1r2r1pP/3B1qN1/1Qb5 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 Nd2 hxg4 Ne4 b5 axb5 f5 f4 Bb7 Nd2 Bg2 Ne4 Bf3 exf3 fxe4 Ke2 Kf7 c4 Kf6 b4 d5 c5 g5 c6 a5 c7 d3+ Ke3 a4 Kd4 g3 Kc5 a3 Kb6 e3 Kb7 e2 c8R e1Q f5 Ke5 h3 a2 b6 d2 f6 d4 b5 d3 f7 Nc6 f4+ Kd4 Qe2 d1N Bd2 e5 Rc7 Bb4 f8B Qf2 Bg7 Nc3 Qf3 Qf8 Be2 Nf6 Qe4+ Kc5 Bf3 Ba3 Bh5 g4 Nf3 Ra6 Ne1 Bc1 Ng2 Nfd5 Rc8 Qd6 Rg8 Ra3 Re1 Na5+ Ka8 Rh6 b7 Rb3 b6 Nb5 b8Q Qe7 b7 Rb6 Qe8 Qf8 b8B Qe7 Bc7 Qf8 Rb1 a1R Bd8 Raa3 Bh4 Qd6 Ra1 Qe7 Qf5 Kd4 Qb8 Qb4 Qe4+ Kc5 Bc3 d2 Rh1 d1R Bd2 Re3 Qb7 Rab3 Re1 Nc6 Ra6 Na5 Qb1 Rf3 Re3 Kd4 Rc3 Rd3 Qc6 Re1 Qg6 Ree3 Rcc8 Rdc3 Qgc2 Rc7 Qc6 Rd7 Rc7 Rf7 Qcc2 Rd7 Qe4+
1B1Q4/nq2k2n/5rq1/bPN5/RrPQ2p1/1B1Qp3/5p2/KNrBqqQ1 b - - 0 1 legal: proof: f4 b5 b4 d5 a4 g5 e4 h5 g4 d4 Ra3 Ba6 Rg3 gxf4 axb5 c5 g5 Bb7 Rg4 hxg4 d3 Bd5 exd5 c4 Bd2 cxd3 Be3 Bg7 Bc1 Bf8 Kd2 f5 c4 a5 h4 e5 g6 f3 b6 e4 d6 f4 d7+ Ke7 b5 f2 g7 f3 h5 a4 b7 a3 h6 a2 h7 a1Q Qe2 Nf6 g8B Qa7 Nh3 Qdb6 Ng5 Nc6 b8Q Qab7 Qg3 Ra4 Qg1 Na7 Ne6 Rb4 Nc5 Bg7 Be6 Rf8 h8Q Nh7 Bf5 Rf6 Qe3 Qd6 Be2 f1Q Bd1 f2 Bb2 Bh6 Kc1 d2+ Kc2 Bf4 Qd3 e3 Ba3 Qe6 Be4 Bc7 d8Q+ Kf7 Bb2 Ba5 Ba1 Qf5 Rh6 Qg6 Bef3 Ra4 Kb2 Rb4+ Bb3 d1R Ka2 Rc1 Bfd1 Qe1 Bb2 Qf1 Ka1 Qe1 Qe4 d3 Be5 d2 Bb8 Qf1 Qed3 Qe1 Q8d4 Ke7 Qhd8+ Kf7 Bdc2 d1Q Rh1 Qde2 Bd1 Q2f1 Rh6 Ng5 Rh8 Nh7 Re8 Qc6 Re6 Qc7 Ra6 Qb7 Qh8 Ke7 Qc8 Bd8 Ra4 Ba5 Qcd8+
R1r1BQQq/3Nr3/3pB1nR/3rP1pQ/K5P1/3n3q/n1Rb3p/2k1nR2 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 g5 h5 b5 axb5 Bb7 Qd2 Be4 Qd1 Bg6 hxg6 e5 e4 d3 Be3 d2+ Ke2 f6 Bd4 exd4 e5 f5 Nc3 Na6 Ne4 fxe4 Qe1 Nb8 Qb1 Bc5 Qd1 Bf8 f4 Ke7 g4 Ke6 b4 Kd5 b6 Kc4 c3 a5 b7 h5 b5 h4 b6 e3 g7 a4 f5 h3 f6 a3 f7 a2 Nf3 Na6 b8R Nb4 b7 Rh7 Ne1 Ne7 Nd3 Ng6 Nc5 Qe8 Qe1 d1N Qh4 d3+ Ke1 e2 Kd2 Nf2 g8R Kd5 c4+ Kd4 Bg2 Qd8 Raf1 e1N Bc6 a1R Rh2 R1a5 Kc1 Ke3 Kb2 Kd2 Kb3 Na2 Rh8 R8a6 Ra8 Kc1 b8Q d2 Qh5 Nd3 Qc8 Rg7 Rh6 Qe8 Rg2 h2 Rgf2 Bd6 Ba4 Qh8 Qg8 Rc6 f8Q Re7 Ka3 d1Q Rb2 Qf3 Kb3 Ra7 Bb5 Rb7 Ka4 Rc8 Bc6 Rd8 Bb5 Bc7 Bc6 d6 Be8 Qg2 Nd7 Ba5 c5 Bd2 c6 Rb5 c7 Rd5 c8B Bb4 Nb8 Bd2 Be6 Rc8 Nd7 Qh3 Rc2+
3Q2r1/2KNRP1B/q4k2/3Q2b1/P1p1B2q/3pBn1p/q1Nqb2Q/1Bnb4 b - - 0 1 legal: proof: d4 a5 h4 b5 c4 g5 b4 axb4 Bf4 gxh4 Bc1 e5 dxe5 b3 e4 f5 a4 b4 e6 Nh6 e5 Ng8 Ra2 Ra7 Re2 Rb7 Re4 Rb5 cxb5 fxe4 Kd2 Ke7 Ke3 d5 Kd4 c5+ Ke3 h5 Kf4 e3 g4 c4 g5 e2 f3 e1Q g6 b2 b6 d4 b7 h3 g7 b3 Bg2 h4 Be3 h2 Na3 b1Q Nc2 Nc6 b8Q Nf6 g8B h3 Bh7 b2 Kf5 Qd2 f4 Qb6 Nf3 Nh5 Re1 h1B Ke4 Bh6 Kd5 Rf8 f5 Qa6 Re2 Bg5 f6+ Kd8 Kd6 Nf4 Re1 Nd3 e7+ Ke8 Re2 Kf7 Kc7 Bg4 e8B+ Ke6 f7 Qa2 Bd7+ Ke7 e6 b1Q Qb2 Nc1 Ne5 Rg8 Bge4 Kf6 e7 Bhf3 e8Q Bh5 Re1 Be2 Bdf5 Qba1 Qd7 Q1b1 Qd5 Bhf3 Ng6 Ne5 Nf8 Bg4 Qb8 Nf3 Bfg6 Qbb4 Qbd8+ Qe7+ Nd7+ Kg7 Rh1 Qef6 Qg1 Bd1 Bgf5 Qh6 Qh2 Qh4 Re1 Be2 Na1 Bh5 Bb1 d3 Nc2 Bd1 Bg1 Bg4 Re7 Bh5 Be4 Bg4 Nc5 Kf6 Bf2 Ne1 Bg1 Bge2 Be3 Nf3 Nd7+
1b3QQ1/B1BpNRN1/q4rp1/pBPN1q2/K2n1bq1/3k2bb/4rP2/2B5 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 g4 b5 axb5 fxe4 b4 h5 Qe2 Nc6 Qd2 Ne5 Qd1 Nf7 Ra6 Nfh6 Rg6 Nf5 gxf5 Rb8 Rg5 Ra8 Rg4 hxg4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 a5 h4 d3 h5 Kd4 c5 e5 b6 g6 b5 e3 f6 g3 h6 e2 h7 e1B f7 g2 b7 d2 b8Q e4 b6 e3 b7 e2 Qf4+ Kd3 b8N Bd6 f8B Bb7 Nc3 Qb6+ Ka3 Ra6 Qh6 Ne7 Ka4 Nc6 Qb3 d1Q Nh3 g1B Ng5 Bgh2 Ne6 Bhg3 Ng7 Nd4 Nc6 Bb8 Ne7 Bg2 Ncd5+ Bc3 Rh4 Bh3 Rf4 Qe6 Rf7 Qf5 Qf4 Rf6 Qh6 Rg8 h8B Bgf4 Nc8 Bg3 Bd6 Re8 Bc7 Bf4 Nce7 Bg3 Bg2 e1Q Bf1+ Qee2 Bb6 Bgf4 Ba7 Bg3 Bg2 Qee6 Bf1+ Qde2 Qa2 Qa6 Qb3 Bbf4 Qb8 Bcd2 Qh7 Be5 Qg8 Bdf4 Qa8 Ke4 Qc8 Qeg4 Bb5 Bd6 Nc6 Ree6 Nce7 Bb8 Qcf8 Rb6 Bc4 Rb2 Bb5 Re2 Nh5 Rd6 Be5 Rb6 Ng7 Rf6 Bc6 Kd3 Bd6 Nf3 Bc7 Nd4 Bb5+
3Q3r/P6N/1n3pqn/1RK1B1qN/1rB5/Bp1N2pr/1qkb1P2/QqB5 b - - 0 1 legal: proof: d4 e5 dxe5 a5 g4 f6 b4 axb4 g5 Ra3 g6 Ra8 c3 bxc3 a4 h5 Qb3 b6 Qd1 Ba6 Nf3 Bc4 Ng1 Bf7 gxf7+ Ke7 Ra2 Qe8 Rd2 Qc8 Rd4 Qd8 Rg4 hxg4 e4 Ke6 Ke2 g5 Ke3 c5 h4 d5 a5 c2 a6 g3 a7 d4+ Kd3 g4 Kc4 d3 h5 g2 h6 d2 h7 g3 Rh5 Qe8 Nc3 Nd7 Nge2 Bh6 f8B g1R Bd6 Qg6 Rg5 Rb8 Nf4+ Kf7 Rh5 Rh1 Nd3 Rh3 e6+ Kg7 e5 b5+ Kd5 c4 e7 b4 e8Q b3 e6 Rb4 e7 Nb6+ Kc5 Bg5 Be2 Nh6 Ne4 c3 Qd8 Kf7 e8N Ke6 Qg1 Kf5 Be5 d1Q Ba3 Qd2 Qa1 c1Q Bf1 Qb1 Ng7+ Kg4 Bc1 c2 Ba3 Bf4 Ng5 Qe2 Bc1 Bd2 Ba3 Rg8 h8B c1Q+ Kd6 Re8 Nh7 Kf3 Rg5 Ke4 Nh5 Rf8 Bg7 Rh8 Rf5 Qcb2 Kc5 Qeg4 Bf8 Q4g5 Bfd6 Bc3 Bf4 Be1 Bc1 Bc3 Rd5 Bd2 Be5 Kf3 Bg2+ Ke2 Bf1+ Kd1 Rd7 Kc2 Rb7 Nc8 Rb5 Nb6 Ndf4 Q1a2 Bc4 Qab1 Nd3
5K1n/2kr1BNQ/N1bp2Rr/Q3b1RR/7P/4p3/nP1b2p1/NNr3bb b - - 0 1 illegal: No possible last move
5N1Q/2P5/3RNb2/Nn1bbrPn/N5p1/brpBKp1Q/3R2bQ/r1k5 b - - 0 1 illegal: No proof kernel
1K6/pb4Bb/1N5R/Q2b1RQ1/3n2nb/P2Rr1p1/nPpR1b2/Qk2rN2 b - - 0 1 illegal: No possible last move
2N3bn/1b2r2Q/Pp2Q2Q/N3p2P/Kn4kr/2N3n1/R1n1pRrB/2b1Q3 b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b4 axb4 g4 hxg4 f4 f5 e5 Nd7 Bg2 Nb8 Be4 fxe4 f5 Qd6 Ke2 Qc6 Ke1 Qf6 exf6 Kd8 Ne2 Kd7 Ng1 Ke8 h4 Kf7 a4 c5 d4 g5 Kd2 e5 Kc2 b6 Kb3 c4+ Kb2 g3 a5 c3+ Kb3 e3 a6 g4 d6 c2 d5 g2 d7 g3 d8Q Bb7 d6 Ne7 d7 Ra7 Ra3 Bh6 Qc8 Ng6 d8Q Nc6 Qe1 Nd4+ Ka4 b3 Nc3 b2 Nge2 g1N Ra2 b1B Rh2 g2 Qd6 Rh7 Qh8 Bg5 Bd2 c1N Qc6 Nc2 Nd4 Bf4 Nb3 Nd3 Na5 Ne2 Qd6 g1R Rf2 Rg2 h5 Ng3 Qc6 Rg7 Qh7 e2 Bc1 Bh6 Bf4 Nh8 Qd6 Ndb4 Qe6+ Kf8 f7 Rg4 Qhg6 Rh4 Qh7 Ne4 Bh2 Bc1 Qc6 Ke7 f8N+ Rg7 Qd5 Kf6 Qe6+ Kg5 f6 Ng3 Ng6 Re7 f7 Ra8 Qd5 Rg8 f8Q Kg4 Qfh6 Rgg7 Ra3 Ba2 Qdg8 Bad5 Ra2 Bf7 Qe8 Bg8 Qc6 Rc7 Ne7 Rd7 Nc8 Rde7 Rf8 Rgf7 Qcd6 Rf2 Rf7 Rg2 Rf2 Nd5 Qdf6 Ndb4 Qe6+
2Rr1B2/3r1p1k/KQP2n2/nRR2rr1/2p3n1/2P1bpB1/3QN1B1/4Bb1b b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 c5 a4 e5 b5 exf4 Nc3 c4 Nd5 b6 Nb4 axb4 a5 Qg5 axb6 Qc5 dxc5 Bb7 Bb2 Ba6 Bc1 Bc8 Kd2 h5 g4 d5 e4 b3 Kc3 f3 Kb4 d4 b7 h3 e5 h4 e6 d3 e7 h2 c3 h3 g5 b2 g6 d2 b6 Ra3 Kb5 Nf6 g7 Nc6 g8Q Na5 Ne2 b1R+ Ka6 Rb5 Qg6 Bh6 Bg2 Be3 Rb1 Ra4 Qdc2 d1R Ba3 Rd7 Qd2 Rh5 Rhd1 h1B Rb4 Rd8 Ra1 Bf5 b8B h2 b7 Bd3 Bg3 Rg5 b8B Rb7 Rb5 Rbd7 Be1 Rf5 Nf4 Bf1 Ne2 Rb4 Bbg3 Rb1 Qa2 Rbd1 Qh6 R1d5 Rd1 Rde5 Rd5 Rg5 Qd2 Ref5 Bh3 Bhg2 Re5 h1N Bb4 Nf2 Qg6 Nh7 Qb6 Bh1 Bg2 Ng4 Rd5 Nhf6 Re5 Rd6 Rd5 Kd7 c6+ Ke6 Ba3 R6d7 e8R+ Re7 Rg8 Red7 Rdc5 Ke7 Rg6 Kf8 Rh6 Kg7 Rh8 Rb8 Rc8 Kh7 Rc7 Rbd8 Rc8 Rg7 Rd5 Rgg8 Bf8 Rgg5 Rdc5
7N/1QPb4/k4P1B/r3pBnK/rnb1RQ2/2Q1b1p1/1B1rQn1p/1r4R1 b - - 0 1 legal: proof: d4 b5 h4 d5 g4 g5 a4 gxh4 axb5 c5 Nc3 cxd4 Ne4 d3 Ng5 d4 e4 Qd5 exd5 Na6 N5f3 Nb8 g5 f6 Ne5 f5 Ng4 fxg4 b4 Kd7 c4 Kc7 f4 Kb6 Kf2 a5 d6 h5 d7 e6 d8B+ Ka7 f5 g3+ Kf3 d2 c5 a4 c6 h3 g6 a3 g7 a2 Ne2 h2 b6+ Ka6 b7 d3 Bg5 h4 Kg4 h3 f6 Bc5 Rg1 h1B Bh6 h2 Kh5 Be3 Nf4 Bd7 Qe2 d1N Ng6 Nf2 Bh3 Bd5 Bb2 Bc4 Bf5 d2 Rae1 d1R c7 Nc6 b8Q Rh7 Nh8 a1R Qd8 e5 b5+ Kb6 Qe7 Rd2 Qb4 Rb1 Qc3 Kb7 b6 Ka6 b7 Nb4 b8Q Ra7 Kg6 Ra8 Bf4 Rh4 Bh6 Rf4 Kh5 Ra7 Qa8 Rfd4 Qg2 Rd5 Qe4 Ra5 Qf4 Ra8 Bg5 Nh6 g8Q Ra4 Qd5 Nf7 Bh6 Ng5 Qed3 Bd4 Re4 Be3 Qe2 Rb8 Rf1 Rb5 Rg1 Rba5 Qb7+
2BbQ3/Nb1P1Q2/N2PRQ2/2n2nB1/2B1rnpr/3pn1b1/2p1b3/K3Qk2 b - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 h5 b4 axb4 g4 hxg4 d6 e5 e4 Bf5 f4 Nf6 a4 Rh7 d5 Bc8 f5 Qe7 Ra2 Rh3 Rd2 Ng8 Rd4 exd4 e5 Qe6 fxe6 Rh8 Kd2 f5 Kc2 c5 Kb2 b5 h4 g5 h5 g3 e7 Kf7 h6 Kg6 h7 b3 e6 c4 d7 b4 d6 c3+ Ka1 b2+ Ka2 f4 e8Q+ Kf5 a5 Ke4 a6 g4 e7 f3 a7 b3+ Ka3 f2 Nf3 g2 Nh2 g1B Bc4 f1N Nd2+ Ke3 Bd5 Kf2 Be4 b1N+ Ka4 b2 Kb3 Bb7 Ka2 Ne3 Nb3 Nh6 Nf3 Bh2 Bd3 Bg3 Nc5 Nhf5 Ne5 Na6 Qf7 Re8 a8B c2 Re1 Nc3+ Kb3 b1B Kb2 Bg7 Bc4 Ba2 Nc6 Ne2 Ka1 Nf4 Na7 Bf6 Bd2 Bg5 Qc1 d3 Qb1 Bf3 Bb7 Be2 Bc8 Bb3 Qd1 Ba4 Qb1 Bc6 Qb4 Bb7 Bc1 Nc7 Na6 Nce6 Bd2 Nc5 Qb1 Reg8 e8Q Bd8 Qb4 Rg6 Qc3 Re6 Bc1 Rf8 h8Q Re4 Qhf6 Rh8 Qce5 Rh4 Bd2 Bd1 Re2+ Kf1 Q5e6 Neg2 Re3 Be2 Qe6e7 Rd4 Re6 Re4 Be3 Nd5 Bg5 Nge3 Qe5 Nf4 Qe7f6 Rh3 Qc3 Rh4 Qe1+
Q5BQ/rbR1QK2/n4b1r/2pQ1PPB/5Npk/1p3p2/1B2N3/1r2bq1n b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 h5 e4 g5 a4 Bh6 g4 Bf8 Ra3 f6 Rg3 f5 exf5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kf2 Kf7 h4 e5 d4 c5 d6 b5 d7 b3 h5 b2 d5 f3 Ke3 e4 Kf4 e3 Ke5 e2 d6 e1B a5 b4 h6 b3 a6 Nf6 a7 Bd2 h7 Be3 Ne2 Na6 Nf4 Qb6 d8Q Bd2 d7 Nh5 Nc3 b1R Bb5 Be1 Bb2 Ng3 Nce2 Bb7 Rh4 Be7 Qd5+ Kg7 Bc4 Qb5 Ke6+ Bf6 Qe8 Nh1 d8Q Be5 Qec6 Bf6 Q8d7+ Kf8 Rh6 Rb8 a8B Rd8 Qdc7 Rd7 Qce5 Ke8 Qee4 Kd8 Qcd6 Kc8 Qe7 Kc7 Rh4 Qa4 Bb5 Qc4 Kf7 Qd3 Nc1 Qf1 Nce2 Rg8 h8Q Rg6 Rh7 Rh6 Qd1 Bc8 Bd5 Bb7 Ke8 Ra1 Bg8 Rb1 Qeg7 Rf7 Qdd5 Rd7 Kf8 Re7 Be8 Rd7 Qdc4 Kd6 Bh5 Rc7 Qe8 Rd7 Qa8 Re7 Nd4 Ke5 Qgf7 Ke4 Nde2+ Ke3 Qd3+ Kf2 Qdd5 Rc7 Qe7 Rd7 Nd4 Kg3 Nde2+ Kh4 Rf7 Bc6 Rg7 Ra7 Kf7 Bb7 Rg6 Bd4 Rc6 Bf6 Rc7
b2B1RNn/qqkQN2N/1R2R3/3p4/p5b1/pbpP2P1/3n1R1K/2r1r2Q b - - 0 1 illegal: No possible last move
Qq1RR3/4Rbrr/3p3Q/3N2r1/2P2P2/pBR1pr2/2Npk1N1/nb1n3K b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 axb5 fxe4 d5 g4 d6 cxd6 Qd3 d5 Qd1 d4 h4 g3 f3 Nh6 Be3 Bb7 Bf2 gxf2+ Kd2 Nf7 g4 Nh6 g5 Ng8 g6 Bh6+ Ke2 Bg5 hxg5 Ba6 Kd2 Bc8 Ke2 a5 b4 h5 c4 e5 b6 Ke7 b7 Kd6 b5 Kc5 g7 d6 f4 d3+ Ke3 d2 g6 h4 b6 a4 Ra2 a3 Qc2 h3 Qb2 h2 Bd3 f1R Be2 Be6 Nf3 Na6 b8Q Ne7 g8R Rh7 g7 Bf7 b7 Ra7 Ne1 Nb4 Qa8 Qb8 Bd1 Nc2+ Ke2 e3 Re8 e4 g8R Rg7 Qf6 Nd5 Nc3 Rf3 Qh6 Kd4 Ng2 Na1 Re1 h1B Bb3 Ra5 Rc2 Rc5 Kd1 Kd3 Rd8 Rc7 Rgf8 Re7 Rfe8 Re5 Re7 Reg5 Rc1 Nb6 Nd5 Na4 Nh4 Bg2 Ree8 Bh3 Ng2 Bf5 Rc2 Kd4 Ke2 Nb2 Rc3 Nd1 Rf1 Rh7 Rf2 Rhg7 Kf1 e2+ Kg1 e1R+ Kh2 Re2 Kh1 Bh7 Rf1 e3 Rg1 Bb1 Re7 Qc8 b8N Rh7 Na6 Qb8 Nab4 Rgg7 Nh4 Reg2 Ree8 R2g6 Rg4 Rg5 Ng2 Re5 Rg6 Rg5 Rge6 Bfg6 Rc1 Bf7 Nc2+ Kd3 R6e7 Ke2 Ncb4 Bd3 Rc3 Bb1 Nc2
2n2b1r/3PrN2/pNB2b1p/pQnQR1Q1/5Br1/1Np3r1/1q1P1K2/1N1k4 b - - 0 1 legal: proof: e4 d5 a4 f5 f4 fxe4 c4 g5 cxd5 b6 a5 bxa5 g4 Nf6 b4 Nfd7 f5 Ba6 Ra3 Nc5 Rf3 Ncd7 Rf4 gxf4 h3 Be2 g5 Bg4 hxg4 Nf6 Ba3 Ng8 Bb2 Qd6 Bc1 Qd8 g6 Kd7 f6 Kd6 g7 Ke5 d6 Kd4 d7 e5 g5 c5 f7 e3 g6 e4 b5 e2 b6 Kd3 b7 c4 Bg2 f3 Qb3+ c3 Nh3 h6 Ng5 Ne7 g8N Na6 b8Q Nc8 g7 Nc5 Kf2 e1R Rh5 a6 Ba3 Qb6 Qd5+ Kc2 Ne7 Qb2 g8Q Kd1 Qb5 Rg1 Bh1 Rg3 Qg6 Rb8 Bg2 Rb6 Qf6 Re6 Qfe5 Na7 Nc8 Re7 Nb6 Nc8 Qf5 Nb7 Bd6 Nc5 Bf4 e3+ Kf1 e2+ Kf2 Bg7 f8N e1B+ Kf1 f2 Nfe6 Rg4 Nd4 Bf8 Nf7 Rh4 Qde5 Rh3 Ba8 Re3 Kg2 f1R Bc6 Bh4 Nb3 Bf6 Qd5 Rg1+ Kf2 Rg4 Qg6 Rh3 Re5 Rhg3 Qg5
r1R3q1/b2Qn2N/1R2kNb1/1PK1bp2/B2n3R/pP1R2Q1/p1p2n2/5qQ1 b - - 0 1 illegal: No possible last move
QR4k1/N3B2p/qr1Q4/NNb2Nn1/1P5p/P3b2B/p2nq2p/1bK1Q2n b - - 0 1 illegal: No proof kernel
bq5r/3nR1p1/n6r/QP4BP/qQNB3N/3prBB1/1q1p2Np/3k1K2 b - - 0 1 illegal: No proof kernel
q1Nb2R1/3pP2Q/pq1r1QB1/2nr3p/2k5/1Nq1Ppr1/1Q1N1Q2/4KbR1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 e3 gxh4 Bd2 b5 axb5 e5 Bc3 Na6 Bb4 Nc5 f3 Ne4 fxe4 d3 Bc3 d2+ Ke2 Bg7 Bd4 exd4 Ra3 Bh6 Ra1 Bf8 c4 Ke7 b4 Kd6 g4 f5 g5 h5 b6 h3 b5 Kc5 g6 f4 e5 h2 g7 a6 e6 Rh7 b7 Ne7 b8Q Nc6 g8Q Na5 b6 Nb7 Nf3 Rh6 Qh7 Be7 Qdc2 d1R Qe5+ Kb4 c5 d3+ Kf2 d2 c6 Nc5 c7 Bb7 Nd4 Bg2 Bd3 f3 Re1 h1Q b7 Qh8 Rf1 Rg8 c8N Bd8 e7 Rd6 Qf4 Qe5 Qf6 Qe4 b8Q+ Qb7 Bb5 Qa8 Ra2 Qh2 Rg1 Qe5 Qb7 Bf1 Bd3+ Rb6 Qb8 Qe6 Rb2+ Qb3 Qbe5 Rd6 Ra2 Qc4 Be4 Qb5 Nb3 Qb6 Ra4+ Kb5 Qeb2 Rg7 Rd4 Rg3 Rd5 Kb4 Rg5 Kb5 Rg8 Kb4 Nc3 Kc4 Bg6 Rb1 Qa3 d1Q Qe2+ Qd3 Ne4 Rb2 Ke1 Rd2 Qf2 Qc3 Qb2 R2d5+ Ned2+
1n1q1r1q/1p1P3B/2QNkb1B/3Q1qpp/p7/QN1bKb2/1R1B3P/4Q1r1 b - - 0 1 legal: proof: c4 d5 f4 e5 b4 exf4 c5 c6 b5 Qf6 bxc6 Qb2 Na3 Qxa2 Nc4 f5 Rb1 Nd7 Na3 Ne5 Rb4 f3 g3 Ng6 Rc4 dxc4 g4 f4 Qa4 Nh4 Qd1 Nf5 gxf5 Ke7 Qc2 Kd8 Qd1 Ke8 Kf2 Ke7 e4 h5 e5 a5 e6 g5 f6+ Ke8 f7+ Ke7 c7 a4 c6 c3 Bd3 c2 Nc4 Kf6 e7 Qa1 e8Q Bg4 c8Q Ne7 c7 Nc6 Ne2 Bg7 f8B Nb8 Nd6 Ra6 Be4 Rb6 d4 Rb1 Bd2 c1Q d5 Qab2 Qe1 Qd1 Qf7+ Ke5 Rf1 Bf6 Bh6 Rf8 Nd4 Rc1 Nb3 Ra1 Kg1 f2+ Kg2 Be2 Bh7 f3+ Kg3 Rb1 Qh3 Rc1 Rg1 f1Q c8Q f2 Rg2 Ra1 Qc6 Qc3+ Be3 Bf3 Qg8 Qfd3 Bd2+ Qe4 Qf7 f1B Kf2 B1e2 Qfd7 Qf5 Qd8 Qb2 Ke3 Bd3 Qa5 Qc8 Qac5 Qdc2 Qa3 Qd8 Qhd7 Qbc3 Bc1 Qb1 Rb2 Qbc2 Bd2 Rb1 Qf2 Rg1 Qh4 Qb1 Qf7 Qf1 Qe1 Qh3 Qg8 Qf5 Nc8 Be7 d6 Kf6 Qgc4 Ke5 Qd4+ Ke6 Qdc5 Qh8 d7+ Kf7 Q5b5 Bf6 Nd6+ Ke6 Qbd5+
2nr1RN1/Qn2BR1R/1P4Np/1N3p2/3P1n1Q/4KnpN/1np5/2rq1k1b b - - 0 1 legal: proof: f4 b5 g4 f5 a4 fxg4 axb5 d5 c4 dxc4 f5 e6 h4 g5 f6 g3 Bh3 Bh6 Bf5 exf5 Ra4 g4 Ra1 Bg5 hxg5 Ba6 Rh4 Bb7 Rh1 Bc8 e4 Kf7 Ke2 Ke6 b4 Ke5 b6 Kf4 e5 c5 b5 a5 b7 g2 e6 Kg3 f7 c3 f8Q a4 d3 c4 b6 c2 g6 c3 e7 a3 e8R h6 g7 a2 Qf1 Nc6 b8N Nge7 g8N Nb4 Rh4 Nbd5 Na6 Nf4+ Ke3 Bb7 Nb8 Nc8 Ba3 c1N Nc6 c2 Nh3 g1N Qe1+ Kg2 Qg7 Nf3 Nc3 g3 Be7 Ra5 Nb5 Qd6 Qec3 Kf1 Ne5 Ra7 Qd4 Ba8 Rb1 a1N Rg4 Nb3 Ra1 Na5 Rf8 Nb7 Ng6 Ra4 Ra3 Rb4 Qdf6 Rb1 Ra7 Ra1 Qh4 Qd7 Nf6 Rg8 Rf7 Rd8 Rg5 Qd5 d4 Ncd3 Ng8 Nb2 Rf8 Qa2 Qf7 Qb1 Qa2 Qd1 Qa3 Nbd6 Rc7 Nb7 Qa7 Rc1 Rg4 Ne2 Re4 Nf4 Re6 Nbd6 Ref6 Bd5 R6f7 Nb7 Ng5 Ng1 Nh3 Bh1 Rh7 Nf3 Rc6 Rd5 Rcf6 Rd8 R6f7
1R4Nk/K1Q1R1pr/N1PPr1Qb/1B2q3/3R1N1p/1br2r2/3p3p/2r1N2n b - - 0 1 illegal: No proof kernel
R3b3/1NRQ2R1/PK3p2/4p1b1/kp1Q2R1/2pPr1bQ/4Nr1B/1nq1b1r1 b - - 0 1 legal: proof: d4 d5 f4 g5 fxg5 a5 c4 dxc4 b4 axb4 g4 h5 g6 Nd7 g5 Ne5 Bh3 Nd3+ exd3 Bd7 Be6 Bc8 Bg4 hxg4 Kf2 Kd7 Ke3 Kc6 a4 e5 h4 b5 h5 c3 a5 c2 g7 b3 g6 f6 h6 g3 h7 b2 Ke4 g2 Bf4 c1B Bh2 Ne7 g8R Nd5 g7 Bd7 Qg4 Bb4 Ne2 g1B Nd2 b1R Nb3 Be1 Nc5 b4 Nb7 Kb5 a6 Bgf2 Rg1 Be8 Qd7+ c6 Rg5 Rc8 Rg4 Qc7 Ra3 Bh4 Rc3 Ka4 Rf8 Bhf2 g8R Bg3 R8g7 Bg5 Rc5 Rg8 h8Q Ra1 Qh3 Nc3+ Kf3 Rh8 d5 Nb1 Ke4 Ra2 d6 Rb2 Rb5 c5 Kd5 c4 Rfg8 c3 Rf8 Qb6 Rfg8 Qg1 Rc5+ Ka3 Rc6 Ka4 Rf8 Qf1 Kc5 Qf4 Kb6 Qc1 Nf4 Rf2 Ne2 Rh4 Rc7+ Ka3 Qe7 Ka4 d7 Rh8 d8Q Rg8 Rd7 Rc4 Rc7 Re4 Qd4 Re3 Qed7+ Kb3 Qf7+ Ka4 Qe6 Rh8 Qh6 Bg6 Bg1 Bh5 Ra8 Be8 Qh2 Rh4 Qg2 Rh2 Qh3 Rhg2 Bh2 Rg1 Qed7+
1Qr1RN2/r3p1Nq/2Qnp2N/2Q2r1Q/2pKb3/3n1p1P/5P2/nr2kR1B b - - 0 1 illegal: No possible last move, all moves rejected
bK1N4/NBp5/3P2n1/p1rnp2R/7B/NqP1p2k/2Nbnn1Q/1QB3b1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 a5 a4 f5 b5 fxg4 Ra3 Ra6 bxa6 h5 Rc3 b5 axb5 h4 Rg3 hxg3 b6 Rh6 Na3 Rh3 Nb1 Rh8 Ke2 Kf7 Ke3 Kg6 f4 Kf5 h4 g5 d4 e6 Qd3 g2 b7 g3 d5 Kg4 Kd4 e3 h5 Nh6 a7 Nd7 a8Q Nb6 b8N Qe8 d6 Rg8 Kc5 Qf7 Kc6 Qe7 c3 Qf7 Ne2 g1N Na3 g2 Qb1 Nf5 h6 e5 h7 Nh4 h8B Be7 f5 Qb3 f6 Nh3 f7 g1N Nd4 Ne2 f8N Bb7+ Kc5 Kg3 Nbc6 g4 Nfe6 Rb8 Na7 Ng6 Ndc2 Bh4 Bf6 Bf3 Qc6 Bg2 Qe8 Ba8 Bg2 Rb7 Bc6 Nd5 Qf8 Kg2 Bg5 Be1 Nd8 g3 Qf4 Nf2 Rh5 Bd2 Bh4 Kh3 Nf7 g2 Nd8 Nf6 Bf3 g1B Kc6 Ng8 Kd7 Nf6+ Kc8 Rb5 Bb7 Nd5 Kb8 Rc5 Qh2+
q1bRq1q1/2nQNR2/3K3R/3PB3/2Qpr1B1/P1ppb1k1/r1p3q1/1R3B2 b - - 0 1 illegal: No proof kernel
1R6/NNrk2B1/1pp4p/Q5qn/Q2K2n1/1qpBP1q1/1bP1N3/1qr1NB2 b - - 0 1 legal: proof: f4 d5 h4 e5 b4 exf4 a4 g5 a5 b6 a6 Bb7 axb7 a6 hxg5 a5 Ra3 axb4 Rc3 Ra5 Rc6 Ra8 Rc4 dxc4 Kf2 f5 g4 b3 d4 c3 d5 f3 Ke3 f4+ Kd4 b2 d6 f2 d7+ Ke7 g6 f3 g7 Kd6 g5 Ke7 g6 Ra1 Nd2 Nf6 g8Q b1Q g7 Nh5 Qd5 Qb3 g8B Ra7 Qa5 Nc6+ Ke4 Bh6 b8N Ne5 Kd4 Ng4 Bc4 Kd6 Nc6 Qg5 d8N Kd7 Rh3 Bf8 e3 Ba3 Nb7 Bb2 Ne2 h6 Rg3 Rc8 Bd3 Raa8 Na7 c6 Rg1 Rc7 Rg3 Ba1 Ba3 Bb2 Qa1 Rg8 Bg2 f1Q Bf8 f2 Nf3 Qg1 Q1a4 f1Q Bg7 Qb1 Ne1 Qh2 Rf3 Qg3 Bf1 Ra8 Rf8 Rd8 Rh8 Rf8 Bh3 Rf1 Rb8 Rh1 Nf3 Rd1 Ne1 Rc1 Bf1
1Q3k2/2Q2Rpp/4p3/q1rqN1N1/r1pnq2P/n6B/3B1nPq/K3NBN1 b - - 0 2 illegal: No possible last move
3qn1B1/b1b2R2/N2R1Nbn/pQ1b2Q1/1Q2pp2/4PR2/pRn1Pn2/5K1k b - - 0 1 legal: proof: g4 b5 d4 c5 a4 cxd4 Qd2 bxa4 Ra3 a5 Qd1 Ra6 Ra2 Re6 Ra1 Re3 fxe3 Qc7 Bd2 Qb6 Bc1 Qd8 Na3 f5 Bd2 g5 Rc1 f4 Nb1 h6 Bg2 Rh7 Bb4 Rf7 Bf1 Rf6 Bd6 Rf5 gxf5 Qb6 Be5 Qd8 Bf6 g4 Bg5 hxg5 Nc3 Qb6 Ra1 Qc7 Nb1 Qd8 b4 Kf7 c4 Kf6 h4 d5 h5 e5 c5 g3 h6 d3 h7 e4 h8R a3 c6 d4 b5 g2 b6 d2+ Kf2 d3 b7 g4 c7 Kg5 f6 a2 f7 Na6 b8Q Nh6 Nh3+ Kh4 Na3 g1B+ Kg2 g3 Rh2 Bf5 c8Q Bg6 Qc6 Nc7 Qb4 Ne8 Nc2 Bc5 f8R Ba7 Rb1 Bf2 Ng5+ Kg4 Qe1 d1B Rf7 d2 Qbb5 Qb6 Rg8 Qd8 Nb4 Bb3 Rh3 d1N Na6 Bd5 Qeb4 Be1 Nh7 Bc3 Qa8 Nf2 Rb2 Be5 Qab7 Beb8 Q7e7 Bc7 Kg1 g2 Rf3 Bc5 Rgf8 Ba7 Rf6 Kh4 Rd6+ Kg4 Qe5 Kh4 Rf7 Kg4 Kh2 g1N Kg2 Kh4 Qe7+ Kg4 Nf6+ Kh4 Rg3 Nf3 Qe5 Nd4 Rf3 Nc2 Kg1 Nf5 Bh3 Nh6 Bf5 Bh5 Bh7 Bg6 Nh5 Kg4 Kf1 Kh4 Bg8 Kg4 Ng3 Kh3 Nh5+ Kh2 Nf6 Kh1 Qg5
3RN2b/2Q3pr/1PBb1QpR/3q2B1/K1kP1bn1/2pp4/QQ4p1/R1r2n2 b - - 0 1 illegal: Other
6R1/3rPB2/p2R4/2q1B2B/p1N1b1Q1/2pP1r1p/b1n1kBp1/1QKnR2b b - - 0 1 illegal: No extended proof kernel
2r1qNB1/1n2p1PP/ppp5/3Q4/Bn3B2/3NQ2k/p1R4r/QBbK1b1q b - - 0 1 illegal: No proof kernel
7K/1p2QNPN/1P1n1p1k/2bpN3/8/bp1p4/1R1BRr1N/qrQQ2br b - - 0 1 legal: proof: d4 h5 b4 c5 g4 cxd4 b5 hxg4 b6 a6 Bg2 Rh6 Bc6 Rh8 Bb5 axb5 e4 g5 f3 d6 e5 Kd7 e6+ Kc6 Na3 g3 Nb1 Bd7 exd7 g4 f4 Na6 Qe2 Nc5 Qf3+ Ne4 Qd1 Ng5 fxg5 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 Kd5 Kd3 Ke6 Ke4 g2 h4 f6 c4 Kf7 Kf5 Kg7 a4 e5 g6 g3 h5 e4 a5 d5 c5 d3 c6 e3 c7 e2 c8Q e1B a6 b4 a7 b3 Bd2 Rb8 a8Q Qe7 d8N Qe8 Ra2 Qf7 Rb2 Qe7 Na3 Qe2 Nf7 Bb4 Rh2 Qf1+ Nf3 g1R Qcc1 g2 h6+ Kf8 h7 Kg7 Ng5 Bf8 Nc4 Re8 Qd8 Bc5 Ne5 Ne7+ Ke6 Rh1 Qc7 g1B Re2 Bef2 Nh2 Kh6 Kf7 Nf5 g7 Ba3 Qd8 Re6 Qe7 Rc8 h8N Rc2 Kg8 Nd6 Nhg6 Bfc5 Kh8 Qe1 Qb1 Rc1 Qbc2 Rb1 Nf8 Qf1 Nfh7 Qe1 Nc6 Re3 Ne5 Rf3 Qcc1 Rf2 Be3 Qc3 Bd2 Qd4 Ra2 Qa1 Rc2 Rf4 Rb2 Rf2 Ngf7+
N5b1/Q2q1p2/2p1N2K/1r1pQkn1/1rb2q1R/R4b1P/p1Pp4/B3Q1NN b - - 0 1 legal: proof: f4 h5 g4 g5 b4 gxf4 g5 c6 b5 Na6 b6 Nc7 bxc7 Bh6 Ba3 Bg7 Bc1 Bf8 d4 b5 d5 b4 a3 b3 d6 exd6 Bh3 d5 Be6 d4 Bg4 Bb4+ axb4 hxg4 Kd2 Ke7 e4 Ke6 e5 d5 b5 a5 g6 b2 b6 a4 b7 d3 b8Q f3 Ke3 g3 Kf4 d2 g7 f2 Na3 b1B Nb5 f1B Qa7 a3 Bb2 g2 Qe1 Qd7 Kg5 Nf6 g8N Rb8 Ne7 Be2 Nf5 Rh4 Ng3 Rb4 Kh6 Bf3 Bd4 Ba6 c8N Nh7 Nb6 Ng5 Na8 Ba2 Bb2 Bc4 Nd4+ Ke7 e6 Kf6 e7 R8b5 e8Q a2 Rb1 Bd3 Ba1 Bh7 Rb3 Bg8 Q8e2 Bh5 Ra3 Bf3 Nh3 g1Q Ne6+ Qd4 Ng1 Rb8 Qe3 Bc4 Q3e2 R8b5 Qe5+ Ke7 h3 Qe4 Rh2 Qf4 Re2 Bd3 Nh1 Bc4 Qc3 Kd6 Re4 Ke7 Rd4 Kf6 Re4+ Kf5 Qh8 Qe5 Rh4 Qf4 Qhe5+
5K2/3P1p2/1Pp5/pQ3bqp/NR5R/2r3b1/Q1RR1pk1/1rqnBqNQ b - - 0 1 illegal: No possible last move
q1rQ2Q1/p4n1Q/Kn2PrBR/1R1p2PN/1BR4n/1p2p2b/4p1nR/3k4 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 gxh4 axb5 f5 b6 fxe4 d4 e5 b5 e3 Nc3 e4 Na2 Bg7 Nb4 Be5 dxe5 cxb4 Ke2 Ke7 c4 Ke6 g4 h5 f4 h3 g5 Kf5 b7 Kg4 f5 h2 f6 b3 b6 d6 c5 h4 c6 h3 c7 Rh6 e6 Nd7 b8Q Bb7 f7 Rf6 f8Q Nh6 c8R Nf7 Ra2 d5 Bd2 Ba6+ Rc4 Qc8 b7 Nb6 Qh8 Qg8 Qe8 Rc8 Qb1 Kg3 Kd1 Kf2 b8R Qf8 Ne2 Bb5 Rg1 h1N Qg8 h2 Nf4 Ng3 Qd8 h1N Bd3 Ne2 Bb4 Ng3 Nh5 Nf5 Rh1 Nh4 Bc2 Nf4 Kc1 Ke2 Kb2 Rf5 Kc3 Nfg2 Rh2 Rf2 Ra5 Ba6 Rb5 Rf6 Rb7 Qe8 Rbc7 Qc6 Kd4 Qa8 Kc5 Kf2 Bd3 e2 Qc2 e3 Bg6 Kf1 Ba3 Ke1 Kb4 Rb8 Ka5 Rc8 Qf5 Kd1 Bb4 Nd6 Rh7 Nf7 Rbc5 Bb5 Rh6 Ba6 Rc2 Bd3 R2c4 Bc2 Rb5 Be4 Qh3 Bf5 Ka6 Bg4 Qg3 Bh3 Qgc7 Ne5 Qcg7 Nf7 Q7h7
1R5B/5p1b/k2KQPr1/R3QP1r/Nr2bb2/5R1r/Bq2q1Rn/r3q1nB b - - 0 1 illegal: No proof kernel
1Rq3kq/1qQN2N1/n2Br3/K5p1/Q2Nn3/n2R1rPn/2Qr2QP/4bbn1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Nd2 b5 axb5 h5 Bh3 h4 Bg2 h3 Nb1 hxg2 Kd2 a5 b4 g5 e4 f5 c4 Kf7 c5 d5 b6 d3 Kc3 d2 b7 a4 b5 d4+ Kb4 f3 e5 d3 b6 f2 Qf3 d1Q Ra3 f1Q Qc6 d2 Qd6 f4 c6 f3 c7 f2 Rf3+ Nf6 e6+ Kg8 e7 a3 e8Q a2 Qh5 a1N Qh4 Bh3 c8Q Ne4 Rd3 Ra6 Nc3 Qc2 Nce2 d1N Nf3 g1N Nfd4 Qg2 Ne6 f1R Ba3 Rf3 Ng7 Ndf2 Nd4 Qc3+ Kb5 Nc2 Qdc7 Bb4 Qhg4 Ba5 Bd6 Na3+ Ka4 Qb2 Qc2 Rh6 Q8c7 Qc8 Qgd7 Re6 Qb5 Ne2 Rb1 Ng1 Qd5 Ra7 Q7c6 Na6 b8N Rc7 b7 Be1 Nd7 Qh1 b8Q Bf1 Qb4 Nfh3 Ka5 Rb7 Qbc3 Qa1 Qdc4 Rb2 Q4a4 Ra2 Qg2 Rd2 Rb8 Qb2 Qcc2 Qb7 Qe2 Qg2 Qc7 Qf2 Nc6 Qd4 Qg2 Qf6 Nd4 Qh6 Qab3 Qh8 Qa4
1bq2b2/7p/N2B1Q1r/1Qn1P1Qq/2nrnKRN/1Rn4P/NQ1k4/r2b2n1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 f5 b5 axb5 e4 e3 g6 Bc4 gxf5 Be2 f4 Bf3 exf3 Kf2 Ke7 b4 Kd6 c4 Ke5 g4 Ke4 g5 f5 g6 d5 g7 a5 b6 a4 c5 a3 h3 d3 b7 d2 b5 Kd3 e4 a2 c6 d4 c7 Na6 b8Q Nf6 g8N Nc5 b6 Ra6 Qa4 d1N+ Ke1 f2+ Kf1 Nc3 Kg2 f1R b7 f3+ Kg3 f4+ Kh4 f2 Kg5 f3 Qc6 Bg4 Qd6 Qc8 Kf4 Re1 Qe7 f1N Ba3 f2 Nf3 Nd2 Nh4 f1N Rg1 Bd1 Rg4 Ne3 e5 Nec4 Qd6 Nfe4 Ne7 Nf3 Nc6 Ng1 Qf6 Ke2 Nb4 d3 Qg5 Rh6 Na6 d2 Bb4 Rg8 Ba3 Rgg6 Bb4 Rd6 Ba3 Qe8 c8Q Rd4 Qc6 Qc8 Qbd6 Kd3 b8Q Ke2 Qcb5 Kd3 Bb4 Ke2 Na3 Kd3 Rc1 a1B Nb1 Bb2 Qdg6 Ba3 Q6f6 Bd6 Q8b6 Bb8 Rc2 Ke2 Rb2 Ne6+ Kf5 Bb3 Q5c5 Nb5 Rg2+ Kd3 Qb7 d1Q Nc3 Qh5 Na2 Ra1 Rg4 Bd1 Qcd5 Nbc3 Qc5 Nf8+ Kf4 Nd7 Rb1 Kd2 Qcd5 Ncd6 Qb3 Nc4 Qb5 Qf7 Be7 Qh5 Bf8 Bad6 Qa3 Ndc5 Rb3 Bdc7 Be7 Bd8 Bd6 Be7 Qfg6 Bf8 Q6f6 Kc2 Qb2+ Kd3 Qa3 Kd2 Qb2+
1nbbQNrR/2kr4/2N3bb/2QP4/b4B2/rp2b2b/BPq3n1/BNN2K2 b - - 0 1 illegal: Other
1rN1QQR1/7k/3bb3/1N1Q2Br/2pb1Q1b/2P1qNP1/K3n1qr/nn2q2B b - - 0 1 legal: proof: b4 d5 f4 g5 e4 dxe4 g3 gxf4 a4 b5 axb5 h5 Ra3 h4 Re3 h3 Re2 Bd7 Rf2 Bc8 Rg2 hxg2 h4 f5 d4 Kf7 Kd2 Kg6 Kc3 c5 Kb2 a5 h5+ Kh7 d5 e5 c3 a4 b6 f3 b5 c4 b7 e3 b6 f2 d6 e4 h6 a3+ Ka2 f4 d7 f3 Qd3 e2 Qd2 e1Q Rh5 e3 Qb2 e2 Bg5 Qe7 d8N Nc6 b8Q Nd4 b7 Be6 Be3 Nf6 Qe5 Rb8 Ka1 a2 Rf5 Ne4 Qa3 Nd2 Qd5 Qc5 Rf6 Bd6 Bg5 Qa7 Kb2 a1N Rg6 Qc5 Qa8 Qa7 Na3 Nb1 Nf7 Qc5 Nh3 g1B Bg2 f1R Bh1 Rf2 Nb5 Rh2 Rg8 f2 Ka2 f1Q Qa4 Bf2 Ng1 Qg2 Nf3 Be3 Qa3 Bef4 Qc1 Bfe5 Qf4 Bf6 N7e5 Bd8 Nc6 B8e7 Nca7 Rh5 Qc6 Qe5 Nc8 Qe3 Qd5 Bd8 Qf8 B8e7 Bf4 Bh4 Qe8 Q1c1 Bg5 e1B+ Nd2 Bf2 Nf3 Ne2 Qf8 Qe1 Qe8 Ba3 Qf8 Ra8 b8Q Bg1 Qbd6 Rb8 Qdf4 Bd6 Qe8 Qd3 Nc7 Bd4 Nd2 Qe3 Rg6 Rf8 Qfe4 Qgf2 Nb5 Rf3 Qf4 Qh2 Rg8 Rf2 Nf3 Qh3 Qdc6 Rh2 Qa8 Qg2 Qd5 Bf7 Rf8 Kg6 h7 Kg7 h8Q+ Kg6 Qhf6+ Kh7 Rg8 Be6 Qff8
1Q2qB2/1QNnqbP1/1b1pR3/7n/NBkPN2b/1r1r3n/1r2B1nK/4Nq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ra3 exf4 Rb3 c5 axb5 Ba6 b6 Bb7 b5 Bc8 Rb4 cxb4 Kf2 Ke7 e4 Ke6 g4 a5 Kg2 f5 c4 h5 d3 a4 e5 d6 g5 h3+ Kh2 f3 c5 Kd5 e6 b3 b7 f4 c6 f2 g6 b2 e7 a3 e8Q h4 b6 a2 c7 a1B g7 f3 Bh6 Ra2 Qg6 Be7 Qg4 Nd7 b8B Ngf6 b7 Nh5 Be3 Qe8 Be2 f1Q Qf4 f2 Nd2 b1R Ngf3 Bd4 Ba7 Bb6 b8N Rb3 d4 Rab2 Qe1 Ba6 c8N Bc4 Qa1 Qe1 Qb1 f1N+ Kg1 Rh7 Qf8 h2+ Kg2 Bed8 Bg5 Ne3+ Kh3 Rh8 Be7 Ng2 Na6 Qf1 Rg1 h1N Ne4 Nf2+ Kh2 h3 Ne1 Rh7 Qh8 Rd3 Bf8 Bh4 Rh1 Ba2 Nc7+ Kc4 Ne7 Rh6 Ned5 Rg6 Ndc3 Rg3 Bf3 Qe2 Na4 Rdb3 Bg4 Rgd3 Rf1 Qe3 Be2 Qg5 Rg1 Qge7 Rf1 Nd1 Rf6 Nf2 Re6 Q8f7 Qg8 Qfe8 Kg1 h2+ Kf1 Ba5 Bc5 Bb6 Ba3 Nh3 Bb4 Ng1 Qh8 h1Q Qg8 Qh2 Qh8 Nh3 Qg8 Qe5 Qh8 Qb5 Qg8 Nf2 Kg1 Nh3+ Kh1 Qf5 Kh2 Qf1 Qf7 Qef6 Qe7 Qg5 Qd8 Qge7 Qb8 Ra3 Nac5 Ba5 Na4 Kb3 Qc1 Rb1 Qc5 Rb2 Qca7 Bb6 Re5 Ba5 Bd2+ Bb6 Bh6 Kb4 Qab7 Bf7 Bd2+ Kc4 Re6 Rab3 Bb4
b1qn1QR1/k1b1n3/3bpbQ1/PK1N2qr/N2r3q/1nR1P1rQ/6Q1/3BR3 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 f4 Kd7 h4 g5 d4 b5 Kd2 c5 Kd3 Kc7 a4 Kb7 e3 e6 d6 c4+ Ke2 c3 Kd3 c2 f5 c1B d5 b3 h5 b4 Kc4 g2 d7 b2 a5 b3 h6 g3 d6 g4 h7 Ne7 f6 Ka7 f7 Nbc6 Be2 Bb7 Rh6 Qc8 Qd2 Nd8+ Kb4 Bf3 Na3 b1N Qa2 b2 Nc2 Nd2 Bd1 b1Q+ Ka4 Nb3 Rg6 Bb2 Rg8 Bf6 Ne2 g1B Kb5 g2 Nc3 g3 Na4 Bh2 Nb4 g1R Nd5 Qe4 Qg2 Qh4 Rc1 Be4 Rc3 Bf3 Qc2 g2 Qg6 Bh6 f8Q B6f4 Be2 Rd1 Qfg7 Rd3 Bd1 g1Q Qg2 Rd4 Q7g6 Ndc6 d8R Bhg3 d7 Bc7 Rdf8 Bgd6 d8Q Be4 Qh1 Qgg5 Qg2 Bf3 Rf7 Be4 Qf8 Nd8 Rgg7 Rg8 h8Q Bf3 Qhh5 Rh8 Qhg4 Rh5 Rg8 Be4 Q4f5 Bf3 Ndb6 Bb7 Nd5 Rb8 Qfh3 Ba8+ Nb6 Bfe5 Rf2 Bf6 Rf1 Nf7 Rg7 Qgg4 Qb1 Qb7 Qh8 Rg8 Re1 Qc8 Na4 Nd8 Rg5 Rg7 Qf8 Qgg3 Re5 Rgg4 Rg5 Qe5 Qd3 Rg3 Rg8 Qeg5 Qg6
2qnBn1n/nk1PBR1b/2b3rR/3B1N1n/3rp3/Q1n1bR2/4P2K/Qr2B3 b - - 0 1 legal: proof: f4 b5 g4 g5 c4 d5 a4 dxc4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 Kd7 Kg2 e5 d4 a5 h4 f5 b4 c5 b6 Kc6 d5+ Kb7 g6 c3 h5 c4 d6 c2 b5 c3 h6 f3+ Kg3 f2 g7 f4+ Kg2 a4 h7 f3+ Kg3 a3 Rh4 a2 Bg5 c1R Rh2 c2 Bh4 Ra4 Qd3 Rd4 Bf6 Ne7 g8B Nec6 Qf5 Na7 Qg5 Bf5 d7 Qc8 Be6 Bh6 Bg8 Rb1 Bd8 c1N Bb3 Nbc6 Bh3 f1B Qh5 f2 Bd5 Rg8 h8Q Be3 Qf6 Rg6 Nf3 Bg2 Be7 Bd3 Bf7 Nd8 Nh4 Bc6 Bg2 Bc2 Bgd5 f1N+ Kg2 g3 Be8 Be4+ Kh3 g2 Nf5 Ng3 Qf3 g1N+ Kg2 Bc2 Rh6 Nh3 Kh2 Ng5 Qh8 Nh5 Qg7 Kb8 b7 Ngf7 Qh3 Kc7 b8B+ Kb7 b6 Nh8 Bbd6 Bd3 Bb4 Be4 Nh4 Bf5 Be1 e4 Qf6 Rg3 Qe5 Bh7 Nf5 Rg6 Qf3 Rb3 Rb1 a1N Qfg3 Rbb4 Rb3 Nc2 Qf6 Na2 Qgd6 Rd3 Qa1 Rdd4 Rd3 Rb1 Qa3 Rdb4 Rc3 Nd4 Rd3 N4e6 Rb3 Kb8 b7 Nf8 Rd3 Kc7 b8R Nc3 Ra8 Rd4 Rb8 Bf2 Rf3 Be3 Rb6 Bb5 Rc6+ Kb7 Rf6+ Bc6 Rf7
2K1n2Q/2n3Bn/4n1q1/1QrP1RB1/1Bpn2q1/1bP3rn/kN6/1Rb1QBn1 b - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 d5 Nf3 dxe4 Nc3 f5 Ne2 f4 Ng3 fxg3 Ng1 Rh7 Ne2 Rh5 Ng1 Rh8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 b4 c5 d4 g5+ Ke3 a5 h4 e5 f4 g2 f5 a4 f6 g3 b6 g4 f7 a3 b5 a2 h5 Qd7 b7 Ra5 b6 Bh6+ Ke2 Kc4 f8Q e3 c3 e4 Qf5 Na6 b8B Nc7 b7 Nf6 Qg5 Rg8 Qf5 Nfe8 Nf3 g1Q Qf8 g2 Bb2 g3 Qc2 Qg4 Qg7 Be6 Qc1 Kb3 Rb1 a1N Qg5 Nc2 Ba3+ Ka2 Qe1 Bb3 Bb4 c4 Qb5 Bg5 h6 Bf4 Qc6 Rc5 h7 Bh6 h8B Rgg5 Kd1 e2+ Kc1 e3 d5 Rg8 Ne5 Nd4 Rh5 Nde6 Bg7 Qg6 Nd3 Bg5 Qd1 e1N Nb2 Nc2 Qe1 Ncd4 Qb5 Bf4 Rf5 e2+ Qd2 e1N Ba7 Bc2 b8Q Nef3 Qe3 Nfg5 Kd2 Nh7 Qd8 Bd6 Qe1 Bb3 Qf6 Qh2 Ke3 g1N Ke4 g2 Qd8 Qhh5 Qa8 Be7 Ke5 Nh3 Qc8 g1N Bb6 Na6 Bd8 Qhg4 Qcb8 Bh4 Bg5 Nac7 Qc8 Bf2 Qd8 Be3 Qc8 Nef6 Kd6 Nfe8+ Kd7 Bc1 Qcb8 Rf8 Kc8 Rf6 Re5 Rf3 Rf5 Rg3 Q8b6 Nef4 Qf6 Nfe6 Qf8 Q6h5 Qg8 Qg6 Qh8
Q3nK1k/1P3n1b/rB6/2Qn3p/1Qq3RP/1R1bR3/Bnb1RrN1/1b3rb1 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Nd2 e4 Ndf3 exf3 Ra4 Qf6 Ra1 Qd8 Kd2 f5 Kd3 Kf7 Kc4 Kg7 Kd5 a5 h4 h5 c4 d3 b4 f2 g4 f3 e4 f4 e5 d2 c5 a4 b6 a3 b5 a2 b7 Nf6+ Kc4 d5+ Kd4 Ra6 g5 Ne8 g6 Qc7 e6 Nd7 b8Q Ne5 c6 Nf7 e7 Bf5 Kc5 d4 b6 d3 Qb3 d1B b7 d2 Bc4 f1R Qb4 f2 Nf3 Bdc2 Rb1 a1N Ba2 d1N Rh3 Nb2 Ne1 f3 Ng2 Rh6 Rg3 Kh8 Qa8 Bg7 Be3 Bd4+ Kd5 Qf4 c7 Bb6 Bc5 Qc4+ Kc6 Rh7 Re1 Bb1 c8Q Nc2 Rh3 Ne3 Re2 Bfc2 Kd7 Nd5 Be3 Rg7 Qcc5 Rg8 Ke6 Rf8 Rg3 Rc1 Rg4 f1B Bg1 f2 g7+ Kg8 Re3 Bfd3 Kd7 Kh7 g8R f1B Rgg3 Ba7 R8g4 Kh8 Re2 Be4 Rb3 Bh7 Ree3 Bfd3 Bf2 Nec7 e8R Rf1 Re2 Bb6 R8e3 Ne8 Bg1 Nh6 Ke6 R8f2 Kd7 Nf7 Ke6 Nc3+ Ke7 Nd5+ Kf8 Bc7 Qd2 Bh2 Qda5 Rff6 Bf2 Bg1 Qab4 Rf3 Bg3 Rf5 Bc7 R5f2 Bb6
1Rr1N2n/r4rbk/1QpK2nn/2P3r1/1NP5/b7/q1Qbb1BB/3B1QQr b - - 0 1 illegal: No proof kernel
1Q3B1k/bQr1bBP1/1R1n2R1/p6N/2bQ2nb/P1Qr2qr/q7/2KB1bb1 b - - 0 1 illegal: No possible last move, all moves rejected
k2B4/1Pn1n2Q/rb1r1q2/4N2p/1RK1bB1B/1N1Bq1b1/bQ2b2P/n1b4N b - - 0 1 illegal: No possible last move, all moves rejected
3rqkBB/3p2Qn/B1nP2r1/n1b3NN/1R4Kn/2Qb1P2/q1b4N/Bn1b4 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 fxe4 Ra3 g5 Rb3 gxh4 axb5 Bg7 b6 Bh6 b5 Bf8 Rb4 cxb4 Ke2 e5 c4 a5 d4 h5 g4 h3 c5 a4 b7 h2 b6 b3 d5 a3 c6 e3 Kf3 h4 g5 e2 g6 e1N+ Kg4 h3 c7 a2 g7 a1N Bd2 b2 Qb3 e4 Qa3 e3 Qa6 e2 Nc3 b1N Qc4 Rh6 Nf3 Nb3 Ne4 Na5 Ng3 Nbc6 b8B Bc5 b7 Ng2 Qc3 e1Q Nh5 Nh4 Ba6 Qe2 Ba7 Re6 b8Q Rg6+ Bg5 Kf7 Qbb2 Qde8 Bb6 Bb7 c8N Rb8 Rd1 h1B Rd4 h2 Rb4 Bg2 Bd8 h1B Bf6 Bf1 Be5 Qc2 Nh2 Be4 f3 Bed3 Qa1 Bfe2 Bf6 Qa2 Bd4 Nge7 g8B+ Kf8 Bh8 Bd1 Nd6 Rd8 Ne4 Ba8 d6 Nd5 Kh3 B3c2 Bgf6 Bb7 Bd4 Nf6 Ng5 Nh7 Qab2 Bd3 Qg2 B3c2 Kg4 Bc8 Qa3 Bb7 Ba1 Bc8 Qc3 Bb7 Bf1 Ba6 Qg3 Bad3 Qge5 Be4 Ba6 Bed3 Qg7+
7Q/Q5rR/q3RRpK/1P2bQ2/2n3bQ/1k1rN1Pq/1q1rN1n1/r1B2q1r b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Nd2 b5 axb5 h5 Bh3 h4 Bg2 h3 Nb1 hxg2 Kd2 Ke7 h4 Kd6 b4 Kd5 e4+ Kc4 h5 d5 h6 a5 c3 f5 h7 g6 b6 f3 e5 a4 e6 f4 e7 f2 e8R f1Q b7 d3 b5 f3 Ke3 d2 Kf4 d4 Rh2 a3 Re4 a2 Re5 f2 Rh3 d3 Qg4 d1R Ne2 g1Q Re6 d2 Re5 Qb6 Kg5+ Kb3 c4 Qgg2 c5 Qa6 c6 Nh6 c7 Nf5 Ng1 Nd7 b8Q Bg7 Re4 Be5 Rh1 Ne3 Qh3 Ra7 Ne2 Nb6 Nbc3 Nbc4 Kh6 Bg4 c8Q Rg7 Qa7 Rd8 h8Q Rd3 Qf5 Qh2 Bb2 Ng2 Qh4 Rb1 Re3 d1R Nd5 Rd2 Bc1 Qh3 Rh2 Qd1 Re4 f1Q Ne3 Qc2 Rh1 Bb2 Re6 Be5 Bb2 Rbd1 Rb1 a1R Bc1+ Ka2 Rb4 Qb2 Ra4+ Kb3 Rf6 Qc6 Ra6 Qb7 Rae6 Qa6 Qg8 Qf2 Rh2 Rh1 Qh8 Qf1 Qhh5 Ne1 Kg5 Qhg2 Rh4 Qh3 Q5h6 Bf3 Qh5 Ng2 Qhg4 Ra3 Rh7 Ra1 Qh4 Bg4 Kh6
1B2qn2/2r5/N1rqp1Q1/RP1Q4/n1n3rn/1r1r1b2/K1NQP2b/1NQ2B1k b - - 0 1 legal: proof: d4 h5 b4 c5 g4 hxg4 a3 cxd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Rh6 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 f4 Kg6 h4 Kf5 c4 a5 Kc2 d5 Kb2 g5 c5 e6 c6 a4 b6 g2 b7 a3+ Kb3 d3 h5 g3 b5 Kg4 c7 d4 f5 a2 f6 a1R h6 d2 h7 d3 f7 R1a6 Kb2 Nc6 b8Q R8a7 Qc2 d1N+ Kb3 d2 Na3 Qe8 Bb2 Nf6 Qb7 Na5+ Ka2 Nc4 Bc3 Nd7 Bg7 Bd6 f8Q Nc3+ Ka1 d1Q+ Qb1 Rc6 Rh2 Na4 Qb8 Bb7 Qg8 Nf8 Nf3 g1R c8N g2 Nd4 Kg3 Nb6 g4 Ndc2 Bc7 Nd7 Qd6 Ka2 Rh1 Nb6 g1N Nd5 Nf3 Qc1 Nh4 Rh3+ Kf2 Bh6 Kg1 Nb1 g3 Bf4 g2 Ra3 Rh3 Qa8 Rb3 Qg6 Kh1 Ndb4 g1R Na6 Rg4 Qd8 Rg8 h8Q Rg7 Qhh5 Rd7 Qd3 Bb8 Qdd2 Ba8 Qf6 Rac7 Qfd4 Rc5 Be5 Bf3 Qg6 R5c6 Bh2 Qc5 Qde4 Rdd3 Qd5 Qd6 Be5 Ba7 Bg3 Bg1 Bf4 Bh2 Be5 Nc5 Ra5 Na4 Bd4 Rf4 Ba7 Rg4 Bb8
b1b3q1/2rB3b/3Bqp2/1P1QrPR1/k2n1Qqb/1R2nB2/2q1QnQK/6N1 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Nh3 cxd4 Nc3 d3 Ng1 e6 Nd5 exd5 Rh2 d4 Rh3 Na6 Rh1 Nb8 c4 a5 f4 h5 Kf2 d5 b4 Kd7 g4 d2 Kg2 h3+ Kg3 a4 e4 d3 g5 d4 b6 Kc6 e5 a3 c5 Kb5 e6 a2 b7 h2 c6 h4+ Kh3 Ra7 c7 Nc6 g6 Nf6 g7 Be7 g8B Ng4 Ne2 Rh5 Qc2 d1B Qb1 d2 b8Q+ Ka4 b5 d3 Kg2 h3+ Kg3 Bc2 Ba3 d1Q Bd6 d2 Qb2 Ne3 Ng1 Nd4 Rb1 a1Q Be2 Bh7 Bf3 Re5 f5 Qa2 Qa8 Qc4 Qd5 Qdc2 Qc1 d1N Rb3 Nf2 Qd2 Bg5 e7 f6 Be6 Qg8 e8Q Qc6 Qh5 Qce8 Bd7 Qee6 Qg4 Rb7 Qf4 Ra7 Ne2 Rb7 Rg1 h1Q Rg2 Qhd1 Ng1 h2 Qe2 h1B Kh2 Bh4 Rg5 Bg2 Qf1 Bh1 Qg2 Ra7 Be4 Qg4 Bf3 Ba6 c8Q Rc7 Qe8 Bc8 Qgg3 Bg2 Qh3 Bf1 Qg2 Bc4 Qde4 Bd5 Qh5 Ba8 Qf7 Qe7 Qfd5 Qee8 Qd3 Qee6 Qe2
Qr1b2Q1/b1bR2qq/1B2N1n1/nq1r1B2/bkB1K1B1/1p5r/qP5P/N1N5 b - - 0 1 illegal: No proof kernel
b1KR1q1Q/PRQ1bn1p/N4Q2/1r1q1R1P/B2n3r/3b4/r7/Qnkbr1B1 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 e6 Nc3 exf5 Na4 f4 Nc5 f3 Ne6 Be7 Nf4 gxf4 Ba3 Bc5 Bc1 Bf8 Kf2 Ke7 e4 Kd6 h4 Kc5 a4 Kd4 g4 f5 a5 b5 a6 c5 h5 b3 d6 c4 g5 b2 e5 b1R e6 c3 e7 c2 e8Q b4 d7 b3 g6 b2 g7 Nc6 Ne2+ Kd3 Ra5 Be7 Qf7 Bb7 Qf6 Nh6 g8Q Nd4 Bg2 Be4 Nc3 Nf7 Nb5 Ra7 Qg3 Re8 Nc7 Ba8 Rb5 Rg8 Rf1 Rg4 Rb7 Rh4 Qh2 Qg8 d8Q Qg5 Qdh8 Qg8 Kg1 f2+ Kh1 Qg5 Bc6 f3 Ba4 f4 Qe1 Qd5 Qd1 Kc4 d3+ Kc3 Be3 Ra1 Qb1 c1R Qa2 Rab1 Qa1 Rg4 Qg3 Rd1 Kh2 Re1 Bd7 Kc2 Kh3 Nb3 Bc5 Nd4 Ba4+ Kc1 Qh2 Rg2 Qg3 Rh2+ Kg4 Rh3 Rg1 f1B Qh2 Nb5 d4 Bd3 Rf1 f2 Qg3 f3 Bb6 Qe5 d5 Nd4 d6 Qd5 d7 Bc2 d8R Bd1 Ne6 Rh1 Nc5 Rh2 Qc7 Rh3 Rg1 f1B Kf4 f2 Rg5 Rh2 Rf5 Bd3 Nd7+ Nc2 Nb8 f1Q+ Bf2 Qfg2 Bb6 Qg8 Bg1 Qf8 Rb6 Rb7 a7 Ree2 Rb3 Rb5 Na6 Re1 Rb4 Ra5 Rb7 Rb5 Qa3 Ra1 Qac3 b1N Q3e5 Ra2 Qa1 Re6 Rg5 Qg2 Rgd5 Re4+ Kf5 Rhh4 Re5 Re3+ Ke6 Re1 Kd7 Qe4 Kc8 Qd5 Qd7 Nd4 Rf5 Rh1 Qdd6 Rh4 Qc7+
1n3qb1/r1B1Q1pr/3BqNKR/1PBB2P1/QN1k1rQ1/1r4b1/bb2n3/3n4 b - - 0 1 illegal: No possible last move, all moves rejected
q2b4/4n1q1/2BQRQN1/n1Rr1p2/3Pbq1n/r2bnPb1/1K4kQ/QN5N b - - 0 1 illegal: No possible last move
2bqkrR1/r1n2nb1/4pb2/1Qq2Q1r/3B3n/N2BP3/b2B2PR/KnB2R2 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 Nc3 f5 Kd2 b5 axb5 f4 Nce2 f3 Ra5 fxe2 Ra4 Na6 Ra1 Nb8 c4 e1N f4 a5 b4 h5 c5 d5 c6 h3 f5 h2 f6 e6 c7 a4 b6 h4 b7 d3 Kc3 a3 b5 h3 b6 a2 Kb2 d4 Rb1 a1B+ Kb3 d2 Qf3 d1B+ Kc4 d3 Qf5 d2 Bd3 Nh6 Ne2 Na6 b8Q Nf7 b7 Nf3 Nd4 Bg7 Nc2 Ra7 Kb3 Nh4 Ka2 Rf8 Na3 Bb2 Rf1 h1Q Ra1 h2 Rb1 Bd7 c8R Nc7 Ra1 B1a4 Rb1 d1N Bd2 Bc1 Ka1 Nc3 Rb4 Bb3 Rbf4 Ng6 Rh4 Ba2 Rh5 Qg1 Rh4 h1R Rh2 Na6 Qbe5 Nc7 b8B Nb1 Qa5 Nh4 Qab5 Na8 Be5 Nc7 Bd4 Qf2 Nc4 Ba3 Bc1 Qc2 Rb8 Bd6 Na3 Qc5 Ra8 Be5 Rc8 Nh8 f7+ Ke7 Bd2 Bef6 Ra8 Bc8 Rb8 Rg8 f8B+ Kf7 Bd6 Rf8 B6e5 Ke7 Bc1 Nf7 Bc3 Qb6 B3d2 Qc5 Qb6 Kd7 Bd4 Ke8 Qb5+ Bd7 Be5 Nf3 Qb2 Ke7 Rb4 Bh8 Rh7 Bc8 Rg4 Ke8 Rg8 Bhg7 Bd4 Rh4 Rh5 Rh3 Rg5 Rh6 Rh5 Rh7 Rh3 Rh5 Rh2 Nh4 Qb5+
2Nb1n1n/4Q3/B1Qqp3/6b1/1rkNQ2B/2PbP1qr/KQRqnn2/2b1N3 b - - 0 1 illegal: No possible last move
1kq2B1B/n1R1r2Q/N1bp2q1/2n1b3/2n3r1/1Q1Pq1QB/rP1R1r1B/2n3K1 b - - 0 1 legal: proof: g4 c5 f4 h5 a4 hxg4 f5 b5 axb5 c4 f6 c3 d3 exf6 Nd2 cxd2+ Kf2 f5 Kg3 f4+ Kg2 Na6 Kf2 Nb8 h4 a5 e4 f5 c4 g5 h5 a4 c5 d6 c6 f3 b6 g3+ Ke3 g4 h6 g2 Kf2 f4 h7 a3 c7 Kd7 b7 a2 e5 Ne7 Be2 Na6 b8B Bg7 Ba7 Nc6 Rh5 Rg8 h8B Nc5 Rb1 a1N Bf1 Bb7 e6+ Kc8 e7 Be5 e8Q Nab3 Qe2 d1N+ Ke1 g3 Qe7 Rg4 Qf2 Ne3 Ne2 g1Q Qh7 g2 Nd4 Nc4 Qg3 f2+ Ke2 Qe8 Nc2 Qg8 Bb6 Ra2 Nb4 Na7 Rh2 Bc6 Be3 Qg6 Rc1 Qh1 Rc2 g1Q Bh3 f1R Rg2 Rfa1 Bd4 Qc1 Kf2 f3 Bg7 Qch6 Bf8 Q1c1 Rd2 Qc3 Rh2 Nc1 Kg1 Qe3+ Rhf2 Bf4 Bh8 Be5 Rc2 Qa3 Rd2 Qa6 Rc2 Kb7 Rd2 Ka8 Rc2 Qb7 c8Q+ Qb8 Qf5 Qc8 Qff7 Kb8 Qd5 Qeg5 Rfd2 f2+ Kh2 f1R Rc3 Rf5 Kg1 Rf2 Qe6 Ne3 Qb3 Nc4 Rcc2 Ne4 Be3 Nc5 Bf4 Q5h6 Qg2 Qhg5 Bh2 Qe3 Rc3 Ra6 Qg3 R1a2 Rcc2 Rb6 Rc3 Rb7 Rd1 Na5 Qe6 Bg2 Qhh4 Na4 Qh7 Re7 Rc7 Nc5 Qb3 Bc6 Rd2 Nc4 Na6+
b1k2R1n/2N1n3/1nnQp2Q/3NP1BP/1bQ1R3/b2K1Rr1/q4Rr1/3n2bn b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 Kd2 g5 c4 a5 e4 d5 b4 Kd7 f4 d3 h4 g3 h5 e6 e5 g4 f5 d4 f6 a4 f7 a3 c5 a2 b6 Nc6 b5 Ra3 b7 Qa5+ Nc3 Nge7 b8R Bb7 b6 Ba8 b7 Rg8 Rb1 a1B Qe1 Bb2 Ne2 g1N Qf1 g2 Nf4 g3 Qf2 Ne2 Nh3 g1N Rc8 g2 b8R Ng3 Nf4 Nh3 Qe3 g1B Nd5 Ng5 Rh3 Nh1 Nc7 Rb3 Re8 Qa2 N3d5 Ba3+ Rb2 Rg6 Rf3 Bb4+ Kd1 d2 Kc2 d1N Rb6 Ba3 Rb4 Nc3 Kd3 Rg7 Rbf2 Na4+ Kc4 Rb2+ Kd3 Nb6 Qf4 Rg6 Qf6 Rg8 Qh6 Rg7 Rf1 Rg2 R1f2 Nd8 c6+ Kc8 Rbb2 Bb4 Rbe2 Rg8 Re4 Rg7 Bd2 Rg6 Ke2 d3+ Ke3 Rg3 Bc1 d2 Kd3 d1N Be3 Bg7 f8Q Nf7 Bd2 Nh8 Bg5 Nf5 Qd6 Ne7 Rf8 Ba3 Ne8 Rg2 c7 Ndc6 Bd2 R6g3 Bg5 Kb7 Rf6 Bf8 c8Q+ Ka7 Nec7 Bb4 Qa6+ Kb8 Qc4 Kc8 Rf5 Ba3 Qdc5 Ng8 Q5d4 Bfb4 Qdc5 Nge7 Qd6 Nf7 Rf6 Nh8 Rf8+
4KQ2/b1p3b1/R5RQ/2Nn1r1R/N1n3n1/2PbnrP1/qb3r2/kN2R1rB b - - 0 1 legal: proof: e4 g5 h4 gxh4 b3 f5 Bb2 fxe4 Bd4 d5 a4 b5 Be3 d4 axb5 dxe3 Ke2 Kd7 d4 Ke6 f4 Kd5 c3 a5 f5 e5 f6 h5 b4 Kc4 d5 a4 b6 a3 b5 h3 d6 a2 b7 h4 b6 h2 d7 h3 f7 Ne7 g3 Nd5 Bg2 Bg7 f8R Nc6 b8R Rh5 b7 Na5 Rf4 Rf5 Qe1 Kb3 Nf3 Kb2 Na3 Qg8 d8N Nc4 Rd1 a1B Rg1 h1N Nb5 h2 Na7 Nf2 Rd4 h1R Ne6 Rh2 Rh4 Ng4 Nd2 Ka2 Rh5 Bb2 Nb1 Ka1 Qf2 Rf3 Nc5 Bf5 Nc8 Ra5 Re1 Qf7 Kd1 e2+ Kc2 e3+ Kb3 Bd3 Nb6 e4 Bh1 Qg8 Qf1 Rhf2 Qh3 Rb5+ Ka4 Qe6 Rf1 e1B Rg8 e2 b8Q e3 Qf8 Bd2 Rf4 e1R Rf6 e2 Qh4 Rd1 Re1 Be3 Qg5 Bd4 Qh6 Qf7 Nc8 Rc1 Ra6 Rd1 Nb6 Be3 Rg1 e1N Rf1 Ng2 Re1 Be5 Rg6 Bg7 Re2 Rg1 Re1 Qe6 Rh3 Rb3 Rh5 Ra3+ Kb5 Qg8 Kc6 Ra5 Kd7 Bed4 Qf6 N2e3 Nba4 Rb5 Ne4 Ba7 Qf8 Rc5 Raf6 Ra5 Nec5 Qe6+ Kd8 Qa6 Ke8 Rb5 Nb6 Qa2 Nba4 Nb4 Nb7 Rbf5 Nbc5 Nbd5 Ra6
1R1rnQ2/bb2NpR1/B2R1P2/R2N1N1q/n5Pb/1n3K1k/3Qrpr1/3q1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e5 Bf4 exf4 Kf2 Ke7 c4 Kf6 e4 Kg5 g4 d5 b4 a5 e5 h5 b6 h3 c5 Kh4 b5 d3 c6 d4 b7 d2 e6 a4 c7 d3 b6 a3 e7 a2 e8R h2 Qe1 d1Q Qe3 d2 Qc5 f3 Re2 Nc6 b8N Qg5 b7 Na5 Qe3 Bc5 Re1 Nb3 Ne2 Ba7 Na3 Nf6 Nc3 Ne8 Be2 Kh3 Nab1 h4 Nd5 Qh5 Nc6 Rb8 Rhg1 h1R Nd4 Rh2+ Rg2 Ra8 b8R Bb7 c8Q Rh6 Qc5 Re6 Nbc3 Re5 Ne7 Re4 Rb1 a1B Ncd5 Bb2 Qf4 Re3 Ba6 Re2+ Kg1 Bc3 Ra1 f2+ Kf1 Bb2 Ra5 Bc1 Rg1 Rg2 Qc8 Ba3 f6 Bd6 Qh6 Bg3 Qf8 Qh7 Qc1 Qh5 Rd8 Rb8 Rd6 Rd8 Ndf5 Qc2 Bd3 d1N Ba6 Nc3 Qd2 Na4 Rc1 Kh2 Rb1 h3 Nfe3 Bh4 Rh1+ Kg3 Rb2 h2 N3f5+ Kh3 Rb1 Re6 Rb2 Be3 Ke2 Ba7+ Kf3 Re2 Rc1 Qb1 Rc8 h1Q Ra8 Qbd1 Rb8 Nbc5 Rbb5 Qhf1 Nd4 Bc8 Nb4 Ne4 Rg5 Nec5 Rg7 Bb7+ Nbd5 Nb3 Ndf5
2KR3b/b1NQ2bP/1NRRr3/8/1ppQQ2B/bPr4n/n2k1rq1/1Qn4b b - - 0 1 illegal: No possible last move, all moves rejected
4N1n1/3b1rP1/KpNR4/1nN1qnbB/Qr3Np1/1n2Q1n1/r4BPk/3Bb3 b - - 0 1 illegal: No proof kernel
KN1R1b2/b5N1/R1rQBrN1/1pnn1b1k/p3qP1n/1P6/1b3rR1/1Q1Rb3 b - - 0 1 illegal: No proof kernel
4nn1r/q1R1N2Q/p3B2Q/2bB4/1pR2b1K/P1n1Qr1P/1Br1k1r1/3br1Q1 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Nc3 f6 Nce2 fxg5 Ng3 hxg3 Qf3 g4 Qe2 Kd7 Qd1 Ke8 c4 Kf7 f4 Kf6 d4 Kf5 c6 g5 a3 b5 d5 e5 d6 g2 Kf2 e3+ Kg3 Ke4 h3 e2 c5 e1R c7 a6 c6 b4 d7 Bc5 f5 Re2 f6 Qe7 d8Q Rc2 f7 Nf6 f8Q Ne8 Bb5 Nd7 Qf2 Nf8 Nf3 g1N Rh2 Ne2+ Kg2 g3 Nh4 g4 Bc4 Nc3 Bb2 Bf5 c8Q Qa7 c7 Bh7 Kg1 g2 Qcd7 Bg6 c8B Bh5 Bf7 Be3 Ba2 Bf4 Qf6 Rb8 Qc1 Ra8 Qb7+ Kd3 Qh7+ e4 Nf5 e3 Bce6 e2 Bad5 Rd8 Qfg7 Rd7 Rb1 Rf7 Qgh6 Rf6 Qb6 Rf7 Kf2 g1B+ Kg2 Bc5 Qg1 g3 Ne7+ Rf5 Rc1 e1R+ Qf2 Be2 Qg1 Kd2 Rh1 Bd1 Rh2 Ne2 Kf3 g2 Kg4 Nc3+ Kh4 Ke2 Qe3+ Kf1 Rh1+ g1R Rh2 Rg7 Rg2 Rgg8 Rg7 Rf6 Rf7 Rgg2 Qg1+ Ke2 Rg7 Bc7 Rg4 Be5 Rc4 Rf3 Qg5 Bcd6 Bf7 Ne4 Rc6 Rc5 Qgh6 Bf4 Bfe6 Rc4 Qbd4 Bc5 Rc3 Ba4 Rc7 Bd1 Rb3 Rc1 Rc3 Rc2 Rc4 Nc3 Qde3+
Rn3rN1/RP3n1p/1qN4P/5N2/Brqp4/2bQ2K1/1R1rb2N/krbr1Q2 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Ra1 f3 Bf4 exf4 Kd2 f2 g4 Ke7 e4 Kd6 Ke2 Ke5 Kf3 d5 b4 f5 h4 a5 c4 d3 h5 Kd4 h6 a4 e5 a3 c5 a2 e6 d2 b6 Ba6 e7 Nf6 e8Q Nfd7 b7 Qb6 Na3 Kc3 b5 Kb2 c6 d4 Nc2 Ba3 c7 Rf8 c8R Ne5+ Kg2 f3+ Kg3 Ra7 g5 Nf7 g6 Ra8 Bg2 f1R g7 Rf2 Qf1 d1R g8N Rfd2 Qe3 f2 Rh2 Rb1 Qed3 f4+ Kh4 f3 Kg3 Rbd1 Ne3 Ra7 Nf5 Ra8 Rac1 a1B R1c7 Ka2 Bh1 Bc3 Rg2 Ka1 Re7 Nd7 b8N Bc1 Nc6 Rb8 Rh2 Rb7 Ra8 Nb8 Rg2 Qc5 b6 Qa5 Qe1 f1Q Rd7 f2 Nf3 Qe2 Nh2 f1R Qf2 Rfe1 Qf1 Qe6 Re2 Qc4 Bd5 Bb5 Rde7 Qa6 Be6 Qa7 Bd7 Qb3 Nf3 Ba3 Be8 Rb1 Nb4 Rc2 Qe3 Bc1 Nh2 Rd1 Qe4 Bd3 Ba4 Qc4 Nc6 Ra2 Rc2 Be2 Qd3 Qa5 Rb2 Qac5 Rb4 Rad2 Rb2 Ra7 Bb5 Ra4 Rea7 Q5b4 b7 Qbc5 Na5 Rb4 Ba4 Qb6 Nc6
R3q1R1/1bB2r1n/N1Q1b3/1b2n2p/2P1QQBP/k3bB2/rp1n1q2/1B1K1b2 b - - 0 1 legal: proof: d4 b5 b4 c5 f4 e5 a4 exd4 Nc3 g5 Na2 gxf4 axb5 Bg7 b6 Bh6 b5 Bf8 Nb4 cxb4 h4 Ke7 e4 Kd6 c4 Kc5 g4 a5 b7 h5 g5 d5 e5 f5 b6 d3 g6 b3 g7 Kb4 e6 d2+ Ke2 d4 e7 a4 e8B d3+ Kf3 b2 Bc6 a3 Bd7 a2 Rh2 Qe8 Qe1 Rh7 Qe6 d1B+ Re2 d2 Qc6 Ba4 Re3 d1B+ Ne2 Bc5 Rd3 Bb5 Bg2 Nf6 g8B Rf7 Bh7 Be3 Ra3 Bc2 Ng3 Be4+ Ke2 f3+ Kd1 f2 Bf3 f4 Bdg4 Nbd7 b8Q f1N b7 Nd2 Qe5 Ra5 Rb1 a1Q b8Q Ra6 Qd4 Ne5 Qdd5 Bef5 Ne4 Bb7 Nc5 Be6 Qe4 Qa2 Bhf5 Nh7 Ra1 Ra7 Rd3 Qb1 Rd8 Ra2 Na6+ Ka3 Qbc7 Qd3 Bg6 Qd4 Rb8 Qed7 Rg8 Qe8 Qb8 Nf1+ Bd2 Qb6 Bc3 Nd2 Ba5 Qd4 Bc7 Qc5 Bh1 f3 B6f5 f2 Bhf3 Qd7 Qf8 f1B Qh6 Qd8 Qhf4 Qc8 Qd4 Qe8 Bb1 Qce7 Qde4 Qf6 Qg5 Qf4 Qh6 Qh2 Qhf4 Qf2 Qg3 Kb3 Qgf4 Ra5 Nb8 Ra8 Ra6 Ra7 Rb6 Ra3 Ra6 Ra2 Ra8 Kb4 Na6+ Ka4 Qef5 Ka3 Q5e4
1Q5r/1qp5/Bb2Q1bB/3nr1P1/1RN2Q1p/N2bN1qP/nK5b/3b1knN b - - 0 1 illegal: No possible last move
n2Q3n/2pb2BQ/R2q2p1/2PRN1P1/qN2q1b1/2kq3N/2qrRr1R/2n3K1 b - - 0 2 legal: proof: f4 a5 g4 h5 b4 axb4 e4 e5 g5 d5 Bh3 Bd6 Bg4 hxg4 Na3 dxe4 Nb1 e3 Qe2 e4 Qd1 Be5 fxe5 Rh4 Ba3 Rh7 Bc1 Rh8 Kf1 Kd7 c4 Ke6 d4 f5 a4 b5 h4 b3 a5 b2 h5 b4 h6 f4 a6 g3 c5 Kd5 e6 Kc4 e7 b3 e8Q e2+ Kg2 e1Q h7 e3 d5 e2 d6 g6 a7 Qb4 d7 e1Q Nc3 b1B Ne4 b2 Nd2+ Kc3 Rh6 f3+ Kh1 f2 Nb3 f1Q Be3 g2+ Kh2 Qd3 Qe4 Qa4 Nh3 g1N Qh4 Ne2 Kg2 Nc1 Na5 Qf8 d8N Bd7 Nf7 Qfd6 Ra2 Qh1+ Kf2 Qhe4 Nc6 Bc2 Bf4 b1Q Kg1 Bb3 Qhh5 Qbc2 Nb4 Bbe6 Ne5 Bf5 Qh4 Bg4 Rh5 Nh6 Be3 Nf7 Bd4+ Kb3 Qd2 Rg8 h8R Rd8 Rf8 Nh8 Rf5 Qac6 Ra6 Qa4 Rf2 Rf8 Re2 Rf2 Ba1 Be8 Bb2 Nd7 Rh7 Rc8 a8R Nb6 Rd7 Rb8 Qh7 Rd8 Rb8 Na8 Bd4 Qe7 Rd5 Qd6 Rb5 Bed7 Rba5 Qac6 Ra2 Qa4 Nf3 Qcc3 Bg7 Qdc2 Ne5 Q3d3 Qf4 Kc3 Qf6 Rf8 Qd8 Rh2 Re1 Rd2 Re2 Rf7 Rh2 Rff2 Ra1 Nb3 Re1 Nc1 Re2
5Bb1/2r1B2n/1N2NpnP/1p3Pnr/1Kn4n/1Q2B3/q3Bbqk/Q1R2N1r b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 h5 Bh3 hxg4 Bg2 Qd6 Bf1 Qd8 b4 c6 b6 Nf6 b5 Qc7 b7 Qd7 b6 Qd8 Ra5 Ng8 Rb5 cxb5 d4 Kd7 Kd2 Ke6 Kc3 Kf5 f4 a5 h4 e5 d5 g5 d6 f6 h5 e3 d7 g3 Qd4 Kg4 f5+ e4 Nh3 e2 Bd2 e1R Be3 g2 Na3 Kg3 Qd2 g1Q Qe2 a4 Bd2 e3 Qd1 g4 Nb1 a3 Bd3 a2 Qc1 a1N Na3 e2 Qb2 Bc5 Nf4 Nb3 Qa1 Ne7 Bc1 Bf2 Ne6 Qg8 d8B Nd7 b8N Nf8 b7 Nd2 Nb1 Nc4 Be3 Nh7 Nd7 Ra7 b8B+ Rc7 Nb6 Qg2 Kb4 Ng6 Be7 Rc1 c3 e1N Be2 Nf3 Nd2 Nfh4 Re1 Kh3 Nf1 g3 Ba7 Bb7 Bh6 Bd5 Bhf8 Qh1 Rd1 g2 Re1 g1N h6 Ngf3 Rd1 Qg2 Re1 Nfg5 Rd1 Nd6 c4 Qf7 c5 Rg8 c6 Nc4 Ng3 Kh2 Re1 Rb7 c7 Rd1 c8Q Rc7 Qca6 Rg7 Qb2 Rb1 Rc1 Ra1 Rc2 Rh1 Rc1 Qg8 Qb3 Qf7 Qa1 Rg8 Ng7 Qe6 Bg4 Qe2 Ne6 Qa2 Be2 Rg7 Nf4 Bg8 Ne6 Rd7 Ne4 Rd3 Nd2 Rh3 Nd7 Rf7 Be3 Rg7 Nb6 Rf7 Bd8 Rc7 Bde7 Nhf3 Re1 Rh5 Rc1 Nfh4 Nf1+
2BQQ1N1/1B4q1/1b2nbrp/Nb3B2/3r1p1P/2b2bkq/RQ3Pn1/1nKB4 b - - 1 2 illegal: Other
1B1Q1rB1/2p3n1/1bK1pnr1/N3rk1b/2Q1PrNQ/3q3r/Q1N1qP2/b3R3 b - - 0 1 legal: proof: g4 f5 b4 d5 a4 h5 Ra3 h4 Rg3 fxg4 c4 b5 axb5 dxc4 Bb2 hxg3 Ba3 Nc6 Bc1 Nb8 d4 Kf7 Kd2 Kg6 Ke3 a5 Ke4 a4 h4 c3 b6 c2 b7 a3 d5 a2 d6 a1B Kd5 g2 b5 g3 b6 Nc6 b8Q Bg4 b7 Nd4 d7 Nf5 Na3 Nf6+ Kc6 Bh5 Be3 c1Q+ Qc2 Qd2 Nf3 g1R Qa2 g2 Ba7 e6 e3 Qe2 Nh2 Bd6 Nc2 Bc5 Ng4 Bb6 Qc8 Rf8 Bb8 Ra5 Qc4 Re5 Qa2 Qe7 d8Q Qa3 Qd4 Qad3 Qdc4 Nd6 Qd8 Kf5 Qb2 g5 Qba2 Qe1 Be2 Nde8 Bd1 Qed2 Bf3 Rd1 Re1 g1R Bg2 Q2e2 Bf1 Bg6 h5 Rg3 h6 Bh5 h7 Ng7 h8Q Rh3 Qh6 Bg6 Qh4 Bh5 Nh2 g4 Bg2 g3 Ng4 Kg6 Bd5 g2 Be4+ Kf7 Bh7 g1R Bg8+ Kg6 Ba7 Kf5 b8N Rhh1 Na6 Rh2 Bb8 Rh3 Nc5 Rb1 Nb7 Rb4 Na5 Rgg3 Nh2 Rg6 Ng4 Ra4 Qcb3 Rd4 Qc4 Rf4 e4+
7Q/1b1pP1nN/B4r2/2QPQ1K1/qq4R1/1qb1BBpk/2Bnb1N1/q1qr4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 b4 axb4 a4 e5 Ba3 exf4 Bc1 c4 Ra3 Qa5 Rh3 Qd8 Rb3 cxb3 Kf2 Ke7 Kf3 Kf6 Kg4 g5 d4 b5 c4 f3 h4 b2 e4 f2 a5 b3 a6 b4 h6 Bg7 d5 Nc6 a7 Bb7 h7 Nh6+ Kh5 g4 e5+ Kf5 c5 g3 e6 Rf8 h8Q Na5 e7 Bc3 c6 Nc4 c7 Nd2 c8B Qa5 Bc4 f1B Nh3 Qa4 Na3 b1Q Ng5 b2 Be2 b3 Bf3 Qa1 Nc4 b1Q Nh7 Be2 Qg1 b2 Qc5 Kf4 Qg7 f5 Ne3 Rf6 Re1 Rb8 a8B Qbe4 Rd1 b1Q Qh8 Qbb3 Ng2+ Ke5 Qg7 f4 Kg5 Nf5 h5 Qeb4 Qh8 Ng7 h6 Bc6 Ba6 Bb7 Bd3 Rbf8 Bc2 Rb8 Bh5 f3 Bg4 f2 Bf3 f1Q Re1 Nb1 Be3 Nd2 Rb1 Qc1 Rb2 Bc6 Bb7 Rc8 Ba6 Bb7 Qb5 Rc4 Qc5 Rd4 Rb1 Qca3 Rh1 Q3c1 Rh4 Rd3 Bh5 Rd4 Rg4 Rd3 Nf4 Ke4 Ng2+ Kf3 Qb8 Nb1 Qe5 Rd1 Nf8 Nd2 h7 Rf1 h8Q Rd1 Qc4 Rf1 Nh7 Rd1 Bf4 Kf2 Qcc7 Kg1 Be3+ Kh2 Qc5 Kh3 Re4 Qa1a3 Bf3 Qaa1 Rg4
3q4/4nKRp/nq1p1NRN/3rN1rQ/1kn1Q2P/1N2b1P1/2R2rb1/r1Br4 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 f5 b5 axb5 e4 e3 g6 Bc4 gxf5 Be2 f4 Bf3 exf3 Kf2 Ke7 b4 Kd6 h4 a5 c4 f5 c5+ Kd5 c6 Kc4 e4 d6 g3 a4 b6 d3 c7 a3 e5 d2 b5 a2 e6 Bd7 c8N Nh6 b7 Ra5 b6 Kb4 e7 Rg8 e8N Na6 b8Q Bc6 b7 Rd5 Rh2 Rg5 Nf6 Ng8 Qa8 Ne7 b8R+ Bb7 Qe2 d1R Nd2 Bh6 Nb3 Qb6+ Qe3 Qd8 Rb1 a1Q Qe5 Qaa5 Ra1 Qb5 Ra5 Bc6 Rb7 Qbb6+ Rc5 Bb5 Ra7 Bf1 Qc6 Bg2 Qe8 Ng6 Rg7 Ne7 Qh5 R1d3 Ke1 f2+ Ke2 f1R Nf3 Rdd1 Rc7 Rg1 Rg6 Rh1 Qe3 Rhg1 Ne5 f3+ Kf2 f4 Rb7 Ng8 Rbg7 Ne7 Bb2 Ra1 Bc1 Rh1 Na7 Re1 Nb5 Red1 N5d4 Rd3 Ke1 f2+ Ke2 f1N Nf5 Nd2 Qe4+ R3d4 Kf2 f3 Ke3 f2 Kf4 f1R+ Qf3 Rd1 Qh5 Bh1 Rf2 Nc4 Rc2 Bg2 Rg8 Bf8 R8g7 R4d2 Nh6 Rf2+ Qhf3 Qdc7 Nhg8 Bf1 Rf7 Bh6 Rfg7 Rh5+ Kg4 Bg5 Nh6 Bg2 Qfe2 Qd8 Q2f3 Nc8 Kf5 Ne7+ Ke6 Be3 Kf7 Rg5 Qh5
2r2Nq1/1p3QrB/q6n/1k4p1/R1B2b1R/4B1Rn/r1b1n1PP/Q3rrBK b - - 0 1 illegal: No proof kernel
3rR2n/7q/K1np2Qp/NQ1b1Q1N/Pq3q2/2kP4/Rbq2r2/N1q1b1BQ b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 b5 a4 b6 cxb6 Bc4 b5 Be6 b4 Bb3 axb3 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Kd4 g4 e5 f4 b2 a4 b6 c4 h6 g5 b3 f6 h3 g6 e4 f7 d6 f5 h2 c5 e3 f6 e2 g7 e1B c6 Ne7 g8Q Bg7 f8Q Ng6 f7 Qh4 c7 Be6 c8N Qf4 Qe8 Bd5 f8Q Nc6 Na3 b1Q Na7 b2 Ra2 Rd8 Qf5 Qc2 Nh3 b1Q+ Ka6 b5 d3 b4 Be3+ Kc3 Qgf7 b3 Bg1 b2 Q7d7 Qcc1 Nc2 Rf8 Na1 Nh8 Qeg6 Qbc2 Qb7 b1Q Qb5 Qbb4 Qdh5 Ne7 Nc6 Bf6 Na5 Nc6 Ng5 Be5 Ne6 Rf6 Ng7 Bd4 Bf2 Rf7 Rf1 h1Q Bg1 Qhe4 Qh1 Rf6 Rf3 Qe7 Nh5 Qh7 Rf1 Qf3 Qe5 Kd2 Qf7 Bb2 Qg6 Qf2 Qe6 Kc3 Qc8 Qf3 Rf2 Qfg4 Re2 Rf2 Re8 Qgf4 Qcf5
r3n1R1/bp2kNrN/1Q1q1B2/nbqp2qb/1PQ1R1bR/1N2P3/1b6/1R5K b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 Bh3 exf4 Be6 a4 Bb3 axb3 Kf2 f5 Kg2 d5 a4 g5 c4 d3 h4 d2 h6 g4 c5 g3 h5 b2 c6 Qc7 h7 Nf6 h6 Ke7 a5 Qd6 a6 Ne8 c7 Nc6 a7 Rg8 h8R Bg7 h7 Na5 Rh4 f3+ Kh1 f4 Nh3 f2 Ng5 f3 Qg1 d1B Nd2 f1B Rb1 f2 Nb3 Bg4 c8Q Bf6 Bd2 Rg7 Qc4 Qc5 Rg8 g2+ Kh2 Bc3 h8N Bd4 Nhf7 Bf6 Ra1 b1Q Bf4 Qc1 Nh7 Bb2 Be5 Qg5 Rc1 Bc2 Rb1 Bg6 Nd8 B6h5 Nf7 Rc8 a8R Rd8 Ra6 Ra8 Rf6 Qd6 Rf4 Qc5 Qh1 Qd6 Re4 g1B+ Kg3 Bg2 Qh2 f1Q Qh1 Bc5 Kh2 Ba7 Qg1 Qfc1 Qb6 Bf1 e3 Qc3 Kh1 Bd3 Qcc5 Bb5 Qd4 Qcc7 Qc4 Qcc5 Bf6+
B5R1/pr3RB1/qqbkB1q1/1Nq5/1p3q2/P1nb1nPK/4Q1rR/2bB1Q2 b - - 0 1 legal: proof: f4 d5 e4 dxe4 b4 h5 f5 c5 bxc5 h4 Nc3 h3 g3 g6 Nd5 gxf5 Ne3 f4 Ng2 hxg2 Kf2 Kd7 h4 f5 c4 b5 d4 e5 h5 f3 h6 e3+ Ke1 e2 Kf2 e4 a3 f4 h7 b4 c6+ Kd6 d5 Nf6 c7 Nbd7 Qb3 Bb7 c8B Rb8 Qb2 Qb6+ Be3 Ne5 Be6 Bc6 Bd4 Rb7 Rh2 Bh6 Bg4 Rf8 h8R Rff7 Rg8 Bg5 Nh3 e1Q+ Kg1 e3 Nf2 e2 Nd1 Qa6 Nc3 Qc1 Qd2 e1Q Qe2 Ne4 c5+ Ke7 Nb5 Nc3 Rb1 Qed2 Bh5 Qdc2 d6+ Ke6 d7 Qg6 d8Q Bh6 Rh4 f2+ Kh2 g1Q+ Kh3 f3 Bg2 f1Q Qf8 f2 Rf4 Kd7 Rb2 Nf3 Bg7 Qb6 Rf5 Qf4 Rc2 Re7 Rf7 Bg5 Qe1 Qfd3 Qe2 f1B Rb2 Qc2 Ra2 Qa4 Rb2 Qaa6 Rc2 Be4 c6+ Ke6 c7 Qgc5 c8B+ Red7 Qd1 Bfd3 Bh1 Bd5 Rh2 Bc6 Qe7+ Kd5 Qee2 Re7 Qef1 Re2 Qd2 Rg2 Qde2 Qff5+ Bg4 Bc1 Bd7 Qf4 Bdf5 Bc4 Bc2 Bd3 Bd1 Qf2 Bc8 Qfc5 Qb2 Rc7 Rf5+ Ne5 Rf7 Ba8 Nd4 Kd6 Bf5 Rf2 Bb7 Rg2 Be6 Nf3 Qbe2 Re7 Bbc8 Bd5 Bb7 Bc6 Ba8 Rb7 Nb5+
b2r2N1/Q1Q2p2/p1N1bNrn/br6/3R2N1/4PRK1/Prq2rnQ/2kqB3 b - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 b4 g5 Bh3 gxf4 bxc5 exd4 g5 Na6 Be6 Nb8 Bg4 hxg4 Kf2 Ke7 c4 Ke6 h4 Kf5 g6 Ke4 e3 b5 g7 d5 h5 a6 h6 d3 h7 f3 c6 g3+ Ke1 g2 Kf2 d4 c5 b4 c7 b3 c6 d2 Kg3 Kd3 Ne2 g1R+ Kh2 b2 Na3 b1R Nc4 f2 Nb6 f1R Qa4 d1B Nd5 Rb5 Nec3 Nd7 Rb1 Nb6 Nf6 Bb4 Bd2 Nd5 Be1 Be6 c8N Rg6 c7 Nf4 Ne7 Qc8 Nc6 Rab8 Ng4 Ng2 Kg3 Nh6 g8N Bf3 Nd5 Ba5 Rh4 Rf2 Ndf6 Be4 Qa3+ Kc2 Qe7 d3 Rh3 d2 Rb4 d1Q Rd4 Kc1 Qc5+ Qc2 Qa7 Qd7 c8Q Rb2 Qcc7 R8b5 Nge7 Rf8 h8Q Rd8 Neg8 Qd5 Rh5 Qdb3 Rf5 Qbd3 Rf3 Qdd1 Nh5 B4d5 Qhe5 Be4 Nhf6 B4d5 Qh5 Be4 Qh2 B4d5 Ne5 Ba8 Nc6
K2RN3/2RbN1pr/2n1N1P1/Q3b3/5Br1/NqP1k2n/np2n1bq/1q2QQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 c5 g5 cxd4 Bh3 Rh6 Bg4 hxg4 Nf3 Rh3 Ng1 Rh8 Kd2 Kf7 Kd3 d5 a4 e5 h4 b5 f4 e4+ Kd2 d3 Ke3 d2 Kd4 b3 h5 b4 a5 e3 a6 b2 c3 e2 h6 e1Q f6 Ke6 h7 Kf5 a7 b3 g6 g3 f7 g2 Rh2 Ne7 Kc5 Ke4 f5 d4 f6 d3 Nh3 g1N Na3 b1Q Nf4 b2 Nd5 Qg3 Qe1+ Ne2 Rh3 d1B Bf4 Qe8 Kb6 Qh2 Bg3 Bd7 Kb7 Nec6 Ne7 d2 Rh4+ Ke3 Rc4 Nb4 Rc7 N8c6 Ra2 Rc8 a8Q Bc2 Qa5 d1N Ra1 Be4 Ra2 Rg8 h8N Nf2 Ra1 Ra8 Ra2 Nh3 Ra1 Qc2 Rd1 Bg2 Rd6 Qb3 Rd2 Bg4 Rd1 Ra6 Rd8 Rb6+ Ka8 Bd7 Nc8 Bc5 f8Q Na2 Nf7 Bd6 Ne7 Be5 Nd6 Rb4 Qf7 Qf8 Ne8 Rh8 Qc4 Rh4 f7 Rh7 Qcb5 Qg8 f8N Rg4 Ne6 Qf7 Qba6 Qf5 Qc4 Qb1 Qf4+ Kd3 Qff1 Ke3 Bf4+
1R1b1r2/RrqNp1qQ/Br2nN2/1N5K/2n3pP/1R4P1/bR5q/Q2bk2r b - - 0 1 illegal: No extended proof kernel
rnqN1k2/2N1br2/Qq3Q1n/8/NP6/1qB1qpB1/1N3P1p/rb1BnKR1 b - - 0 1 legal: proof: d4 b5 b4 c5 h4 cxd4 a3 g5 Ra2 gxh4 a4 e5 Ra3 e4 Rd3 exd3 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 g4 a5 c4 h5 e4 d5 e5 f5 g5 a4 c5 a3 e6 h3 b6 a2 c6 a1R c7 d2+ Ke2 d3+ Ke3 d4+ Kf3 f4 g6 h4 b7 h2 Kg2 Rh7 e7 Nh6 g7 Bf5 g8N Qc8 Na3 Rf7 Qf3 d1Q Be2 d2 Bb2 d3 Nc4 Qb3 Bd1 h3+ Kf1 Qa3 Ne2 Qa7 Bc1 Qe3 Rg1 h1Q Bb2 h2 Nc3 Qb6 Na4 Be4 Qg4 Qf3 Qf5 Qfe3 Bc3 f3 Qf6 Bd5 Ne5 Ba2 Nc4 Bb1 Ncb2 Qa5 Bb3 d1N Bc2 d2 Bb3 Qd8 c8Q Qab6 Qc4 Qc8 Qa6 Kd7 e8N Be7 Nc7 Kd8 Nc4 Nb2 Bd1 Nd3 Ncb2 Ne1 Qa7 Nc6 b8B Kd7 Qa6 Kd8 Ne6+ Ke8 Nd8 Kf8 Bd6 Nb8 Bg3 Bd6 Ne7 Bc5 Be2 d1Q Nd5 Qb3 Bd1 Be7 Nc7
q3NQ2/4BN1P/1QpqB3/q1P2n2/2n1rb2/Qpbk3b/Q4Kb1/R2r2Nr b - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 h5 b4 hxg4 a4 axb4 Bh6 f5 Ra3 f4 Rg3 fxg3 Be3 Qe7 Bc1 Qd8 h4 Kf7 e4 Kg6 f4 d5 c4 b5 a5 d4 c5 c6 e6 d3 a6 g2 e7 g3 e8N b3 e5 Kf5 e6 Ke4 e7 g5 f5 b2 h5 b4 f6 g4 f7 b3 a7 d2+ Ke2 Qa5 h6 Bg7 f8Q Bc3 Rh2 Nd7 Rh4 Nb6 Rh1 Nc4 Nf3 g1B Ng7 g2 e8Q+ Ne7 Rh5 g3 Rh1 Bh2 Ng1 Bh3 Qb8 Nf5 Qb6 Re8 Na3 b1B a8Q Rh7 Qe1 d1R Bg5 Kd4+ Kf3 Re4 Qe2 Bd3 Qa2 Bb1 Ne2+ Kd3 Ne8 g1Q Nb5 g2 Nbd6 Qd4 Be7 g1Q Nf7 Qd6 Qaa6 Qg8 Kf2 Bf4 Ng1+ Kd4 Be2 Bd3 Bf3 Bdf1 Bg4 Bfg2 Qa8 Kd3 Qaa7 Rg7 h7 Rg5 Qaa6 Rh5 Qa8 Qb8 Qaa6 Qg6 Qaa7 Qa8 Qaa6 Qd6 Qaa7 Ng7 Be6 Nf5 Qaa6 Qb4 Q6a4 Qba5 Q4a3 Rc1 Bd8 Bg4 Nf3 Rb1 Re1 Rh1 Be7 B4h3 Ng1 Ra1 Re2 Rc1 Rb2 Rce1 Rb1 Rd1 Ra1
b1B3Rr/8/n2k1NKP/p1qRbnb1/Q1pb2q1/RqP1B3/4B1R1/3rQ2n b - - 0 1 illegal: No possible last move
q1bB2K1/2pPN1nn/b2q1QnN/Q4q1B/4k3/1Rpr4/2P1NrB1/4bBq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 Ra4 e5 Rc4 exf4 b4 dxc4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 a5 g4 a4 d5 a3 b6 f3 b7 c3 b5 h3 b6 h2 g5 f6 g6 a2 g7 a1Q Na3 f2 Bg5 h4 Qd4 Ne7 g8B h3 Be6 Ng6 Kf5 Nd7 b8Q Be7 e4 Ndf8 b7 Nh7 Qba7 Rf8 Ne2 Qd1 Rg1 h1N b8N h2 Qa5 Qe1 Nc6 Ng3+ Kg4 Nh5 Kf5 Qd7 Rh1 Bd8 Ne7 Qc6 Rg1 h1Q Qdb6 Qb1 Qba6 Qb5 e5+ Kc5 Bd7 Qd6 e6 Rb8 Nc4 Ng7+ Kg4 Rb6 Ne5 Rb8 Nf7 Qg2+ Ng3 Kd4 Nh6 Qh1 Ne2+ Ke4 Q6b6 Qa6 Bh4 Qa8 Qc6 Rb4 Bg5 Rd4 Qca6 Qdc6 d6 Rd3 Q6b6 Qh2 Rh1 Qe5 Rh5 Qed5 Bh4 Qd4 Rb5 Qdd5 Rb3 Qdc5 Bh3 f1B Qba6 Q6d5 Bb5 Qf2 d7 Qd6 Neg8 Rf7 e7 Qfa7 e8B Qg1+ Bg3 Ne5+ Kh4 f5+ Ne7 f4 Be1 Rf5 Bh5 f3 Bd2 f2 Bg5 Bg2 Q6b6 f1Q Qf2 Rf7 Qf6 Ng6+ Kg4 Nhf8 Bh4 Qf3+ Kg5 Bf1+ Ng4 Qf5+ Kh6 Nfe6 Kh7 Ng5+ Kg8 Nh7 Qg5 Rf6 Nh6 Rf7 Nc6 Bf6 Ne7 Be5 Qf6 Bg3 Bc4 Be1 Ng3+ Kf4 Nc6 Rf3 Qd4+ Qe4 Bd8 Rf5 Ne7 Bd3 Bf7 Bda6 Qf6 Qed5 Bf1 Rd3 Ne2+ Ke4 Be6 Rf2 Qa3 Q6e5 Qa5 Qdd6 Beh3 Qf5 Bhg2+
3bR3/r3Qq1k/3Q3r/2n2RBp/1B2N2p/Qnr2P1q/q1r1b2P/Bn1B3K b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Nd2 f5 Ndf3 fxe4 Nh4 gxh4 b4 Kf7 g4 Kg7 c4 a5 f3 e5 Kf2 h5 Kg2 d5 b6 e3 b7 e2 b5 e1R g5 d3 c5 d4 g6 e4 c6 d2 b6 d3 c7 e3 Nh3 e2 Ng1 a4 Ba3 Ra7 Rc1 Qe8 Rc5 Nh6 Rc1 Qf7 Rc2 Be7 Bc1 a3 Rc5 a2 Rf5 a1Q Nh3 Nd7 b8B Qaa2 b7 Nc5 Nf2 Bd8 Ne4 Rh7 Qb3 d1Q Bg5 d2 Qa3 Be6 c8Q Bc4 Qc6 Qdc2 Qa5 d1N Qa3 Nc3 Bd6 Nb1 b8B Rc1 Rg1 e1R+ Be2 Qcb2 Kh1 Rc3 Bd1 Re2 Re1 Rec2 Qd5 Kg8 g7 Be2 Be5 Qb7 Qd6 Qc8 Bc7 Rh8 Ba5 Kh7 Bb4 Qce6 Rf6 Qh3 Rf5 Rd3 Ba1 Rdc3 Rd5 Nf5 Re5 Nd4 Rf5 Ndb3 Qe7 Kg6 g8Q+ Qg7 Qd5 Rh6 Qdd6+ Kh7 Rf8 Qf7 Re8 Rd2 Rg1 Rb2 Rg4 Rd2 Rf4 Rdc2 Rf5
1RB2b2/1Pq1qQ2/1Q1Nnrp1/7b/1N2K1Pn/2p1b2n/R1nr3R/1rQQ1k2 b - - 0 1 illegal: No possible last move
7n/q6b/n4b2/PpRq1Q2/nb3p1r/Q1NBRk2/2QB1Pr1/KnrR1R2 b - - 0 1 legal: proof: d4 a5 c4 e5 h4 g5 b4 gxh4 c5 axb4 Nd2 d6 Ndf3 Qd7 cxd6 Qe7 d5 Qd8 Nd4 exd4 Kd2 Kd7 Kc2 f5 Kb2 c5 a4 b5 e4 h5 g4 c4 a5 c3+ Ka2 c2 e5 f4 g5 d3 g6 d2 g7 b3+ Kb2 h3 Ra3 h2 Qe2 d1N+ Ka1 b2+ Ka2 b1N Rb3 h4 Nf3 h3 Ka1 Ndc3 Bg2 Na6 Nd2 Qb6 Bf1 Ne7 g8R Qa7 Rg5 Ng6 Ne4 Rh4 Bd2 Na4 Re3 c1B Nc3 Nh8 Qd1 Bg7 Bd3 Bf6 Qc2 Ba3 Rf1 h1Q Rh5 h2 e6+ Kd8 d7 Kc7 d8R Bb4 e7 Bf5 e8Q Bh7 d6+ Kb7 d7 Kc6 Bg6 Qd5 Bd3 h1R Qe7 Rg1 Qe5 Rc8 Qf5 Kd6 Rde8 Kc5 d8Q Kd4 Qe7 Rg2 Ree1 Rc4 Rd1 Rc6 Qe2 Rc8 Re3 Rc7 Qa2 Rc5 Qa3 Rc7 Na2 Rc1 Nc3 Qf3 Qg5 Rgg4 Be1 Rg2 Qc2 Qc6 Bd2 Qe6 Qg7 Qc6 Rc5 Qd5 Ne4 Ke5 Qc7+ Kf5+ Nc3+ Kg5 Qe5+ Kg4 Re2 Kf3 Qf5 Rg7 Ree1 Rg2 Re3#
N1Q3Q1/b1rPpn1q/K2R4/3BP3/1Rr3kp/2nN1b1N/Q1r2Q1q/2n2b1r b - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 g5 b3 gxh4 Bb2 b5 axb5 f5 e4 f4 Bd4 Kf7 Bc5 Ke8 Be3 fxe3 Ke2 Kf7 g4 Ke6 d4 h5 f4 a5 e5 c5 g5 Kf5 g6 h3 g7 c3 Kd3 h4 Kc4 e2 d5 e1R b4 h2 b6 c2 Kb5 c1R b7 a4 d6 c4 d7 c3 Ra2 a3 Bg2 c2 Qd5 Ra4 Nc3 Na6 b8Q Nc5 Nce2 Ne4 Nh3 Kg4 f5 Nh6 f6 Nf7 Rb2 a2 Nef4 a1Q Nd3 Qa2 g8Q+ Bg7 Rg1 h1B Qbb7 Re2 Rd1 Rb1 Qb6 c1N Qf2 Rc2 Qb3 Ra7 Qa3 Rb7+ Ka6 Nc3 Bd5 Bf3 b5 Qf8 b6 Rc7+ b7 Qd8 Qf8 Bh6 Rb4+ Rc4 Qe8 Be3 Rd2 Qb2 Qa2 Ba7 Rd1 Rh6 Qg8+ Rg6 Rd2 Qf8 Rd1 Qg7 Rd2 Qh7 Rd1 Nd6 f7 Ra1 f8N Nf7+ Ne6 Rb1 Ka5 Ra1 b8Q Ba6 Qgc8 Rf6 Nc7 Rc6 Na8 Rc7 Nc5 N1e2 Rd2 Rh1 Nd3 Nc1 Qd8 Bb5 Qbc8 Bc6 Qf8 Bg2 Ka6 Bf1 Bg2 Bf3 Rd1 B3e2 Bd5 Bf3 Qg8+ Ng5 Qe2 Bg2 Ndf4 Bf1 Bf7 Rd2 Qe3 Rg2 Rd6 Qf2 Qee2 Qg3 Qec2 Qh2 Bd5 Rd2 Nd3 Re2 Qh8 Nf7 Qd2 Rg2 Qe1 Rb2 Qf2 Rc2 Qhg8+
2B1k1NN/1N1N1b1K/qqqQpR2/4b1q1/nr1nP2Q/4pr2/3bP1R1/r3Q3 b - - 0 2 illegal: No proof kernel
n5K1/2qpQn2/3N1q2/3P3R/br1rrnk1/1bn2RP1/3B2Qp/1QRQN1b1 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c6 b6 Bh6 b5 Qf6 b7 Bg7 e3 Bf8 b6 Qd8 Bb5 cxb5 Kf2 Ke7 Kf3 Ke6 Ke4 h5 c4 f5+ Kd4 a5 e4 h3 d3 a4 e5 b4 g3 f3 c5 f2 c6 f1R c7 a3 Qd2 f4 Nc3 Kf5 Kd5 b3 e6 a2 e7 b2 e8Q b1N d4 f3 Qe7 h2 Ne4 f2 Kd6 h4 d5 h3 Qe1 Na6 b8R Kg4 b7 Nh6 Qb4 Rd1 Qb5 f1B Nf3 Nc3 Qb1 Rd4 Bg5 Bb5 Ned2 Ba4 Ke5 Nf7+ Kf6 Rh4 Rg1 h1N Re1 h2 Rf1 Nf2 Qd1 Nh3 Ne4 Nf4 Rc1 a1Q Nd6 Ra7 Ra8 Bh6 b8Q Rb7 Rf2 Rbb4 Qb5 Bb7 c8Q Bc6 Qbb7 Qc7 Ne1+ Nce2 Rf1 Bb3 Rf3 Bca4 Qh8 Qac3 Qh7 Qb2 Rh8 Nc3 Qee2 Bf8 Qg2 Be7+ Kg7 Qf2 Ne4 Bc5 Nd6 Qf1 Kg8 Re4 Kg7 Bg1 Kg8 Qf2 Qb6 Qd4 Qg7 Qf6 Rh5 Ng6 Qbf2 Red4 Nd3 Qa7 Be3 Nh8 Qff1 Nc7 Bd2 Na8 Qc2 Qc7 Qe7 Nf7 Be3 Bc4 Qfd1 Bcb3 Qgf2 Kh3 Ne1 Qe5 Bd2 Qf6 Rg5 Rhe4 Qb1 Nf4 Rh5+ Kg4 Qg2
k2Qr2q/1pQqq2q/n2p4/6B1/2BP4/1bNRbPR1/R2r4/1KQrQnb1 b - - 0 1 illegal: No possible last move
Qb2b2Q/4N1k1/r3PNrn/2bp4/1pR2Q2/nr1PN2q/2QK2Rn/r1B4q b - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 hxg4 Kf2 exf4 Ke1 c6 b4 Qb6 Bg2 Qc7 b6 Ne7 b5 Qe5 b7 Qf6 b6 Ng8 Bd5 Qg5 Bc4 Qd8 Bb5 cxb5 e4 f5 h4 Kf7 c4 a5 e5 d5 h5 g5 c5 a4 h6 f3 c6 a3 h7 a2 e6+ Kg7 d3 f2+ Ke2 f1N c7 g3 Nf3 g2 Nc3 g1R Ne4 g4 Nfg5 f4 Ng3 f3+ Ke1 f2+ Ke2 Nd7 b8N Nh2 b7 f1Q+ Ke3 Qh3 Kd2 Bd6 Na6 Nh6 b8Q Nb6 Kc3 Nc4 N5e4 Qdh4 Qc2 Bd7 c8Q Na3 Nf6 Be8 Nb4 Ra6 Nf1 g3 Kd2 g2 Nc6 b4 Rb1 a1R Ne7 Rg8 Ne3 Qe4 Qa8 Bb8 Rb2 Rb1 Ra2 Rb3 Q8c7 Rf1 Rb2 g1B Qf4 Bf2 Ra2 Rg1 Rb2 Rg6 Rg1 Qh1 Rg2 Rf8 Qc8 Rh8 Rc2 Rf8 Rc4 Rf7 Neg8 Rfa7 Ne7 Bg1 Nf1 Bc5 Ne3 Nb5 Qcc6 Ra1 Qcc7 R7a6 Qcc6 Na3 Qa4 Rb2+ Qc2 Rb3 h8Q+
br1qN1qN/1RqQq1n1/p1p1N1Qk/r7/2P1n2n/5Rb1/1Q2BP2/1Q3Kb1 b - - 0 1 legal: proof: e4 b5 g4 f5 a4 fxg4 axb5 h5 b3 d5 Ba3 dxe4 Bd6 h4 Bg3 hxg3 d4 Kf7 c4 Kg6 h4 e5 d5 g2 d6 c6 b4 g3 d7 e3 b6 e2 b5 e4 h5+ Kh6 b7 g5 b6 g4 Nc3 Bd6 Na2 Nf6 Rh4 Na6 b8Q Nc7 b7 Nce8 Qb1 Ng7 Nh3 g1Q Qc7 g2 b8Q g3 Q8b3 Bb7 Rf4 Qh2 Nc3 g1Q Ng5 g2 Rf3 Bg3 Q3b2 a6 Ne6 Rb8 Nb5 Ba8 Nd6 Rf8 Kd2 e1N Ke2 e3 Ne8 Ne4 Qd6 Rf5 Ra4 Rg5 Rb4 Rf5 Rb7 Ra5 Rf8 Nf3 Rf4 Qc8 d8Q Nh4 Q8d7 Qd8 Ke1 e2 Rf3 Qgh1 Qdd3 g1B Qdc2 Q1g2 Qcd3 Kh7 h6 Kg6 h7 Kh6 h8N Nc5 Kd2 Ne4+ Ke3 e1Q+ Be2 Qb4 Bd1 Qbe7 Ke2 Qgh3 Q3d6 Qg4 Kf1 Qg6 Be2 Qgf7 Qdd1 Qg8 Qd1d3 Qh3+ Ke1 Qg4 Kf1 Qf4 Qdc2 Qfc7 Qcd3 Nf6 Qf5 Ne4 Qg6+
1rn3n1/1Q1NP3/3Q3r/q1p1b3/1p1NbQq1/1R1k1NN1/1Pnb4/2rRBnK1 b - - 0 1 illegal: No possible last move, all moves rejected
QR2bB2/1RK1pb1n/2n1kq2/1Q4qn/qN2P2r/Qr2R2q/PRp3B1/b7 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 Nc3 f6 Ne4 fxg5 Ng3 hxg3 Qc2 g4 Qa4+ Bd7 Qd1 Bc8 h4 Kd7 f4 b5 d4 g5 Kd2 c5 Kd3 c4+ Ke4 c3 Ke5 g2 d6 g3 d5 b3 f5 b4 e3 g4 h5 b2 h6 b1Q h7 b3 f6 b2 f7 Qe8 Qd3 Ra3 Nf3 g1Q Bd2 g2 Nd4 g3 Nc2 Qf2 Rh2 g1N Nb4 Ne2 Bg2 Qbf1 Rb1 Rb3 Qb5+ Nc6+ Ke4 Bh6 f8Q Bg7 Qf3 Nf6+ Kf5 Nf4 e4 N4h5 Bh6 Qh1 Re1 b1B Re2 Bd3 Re3 Rf8 h8Q Bc4 Qg8 Rf7 Qf8 Bh8 Qg8 Rh7 Bf8 Bg7 Qh8 Rh6 Qg8 Nh7 Qh8 Bb7 Qg8 Qa8 Qh8 Qa4 Qg8 Kd8 d7 Bf6 Ke6 c2 Rh3 Kc7 d8R Qhf1 Rb8 Ba1+ Kf7 Kd6 Ke8 Ke5 Kd7 Bc8+ Kc7 Bd7 Rh1 Be8 d6+ Bd5 Qh8+ Ke6 d7 Bc4 d8R Qd3 Qd1 Qf6 Rb7 Bd5 Rdb8 Bc4 Bf3 g2 Qc1 g1Q Qa3 Qgg5 Rb1 Qf1 Rb2 Qh3 Bg2 Nf4 Qa6 Rh4 Qa8 Nh5 Qg7 Ke5 Qh6 Bcf7 Qg6 Ke6 Qg8 Qgf5 Qg5 Q5g6 Qga5 Qgg5 Qb5
bq1R1QrN/B2P4/r2Np1n1/1b5R/n1Q3K1/4PN2/pn2Rq2/2b1rNkn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 c4 gxf4 axb5 d5 g5 dxc4 Bh3 Bb7 Bf5 Bc8 Bg4 hxg4 Kf2 Kd7 b4 Kd6 h4 Kd5 d4 Ke4 b6 f5 d5 a5 d6 c5 h5 f3 Kg3 e6 e3 f2 b7 f1N+ Kh4 c3 d7 f4 b5 a4 h6 f3 h7 c4 b6 f2 Nh3 g3 Ra2 c2 Bd2 c1R Ba5 g2 Qd2 Kf3 Qe1 g1Q Bb4 Kg2 Qd2 a3 Qc2 c3 Bd6 Ng3 Bb4 Na6 b8N Re1 b7 Ne7 g6 Nc5 g7 Ra6 g8Q Ng6+ Kg4 Na4 Nd2 f1B Nf2 Bb5 Nfe4 Qf2 Rh5 Kg1 Nf1 Nh1 Bc5 Bd6 Qg7 Rg8 h8N Bf8 Qc1 c2 Nc6 Bd6 b8R Bb7 Rb2 a2 Ne5 Ba8 Ba7 Ba3 Nd6 Qc7 Rd8 Qb8 Qd1 c1N Qd5 Nd3 Re2 Bb2 Qf8 Bc1 Qc4 Ndb2 Nf3+
n2Bq2N/2b1P3/qq3r2/1RpQR3/2Bn1rk1/bbB5/pqP3Br/1Q1K2R1 b - - 0 1 legal: proof: f4 b5 g4 h5 d4 e5 g5 b4 Nc3 b3 Nd5 exd4 Ne3 g6 Ng4 hxg4 f5 gxf5 axb3 f4 b4 Be7 b5 Bf8 b4 Ke7 e4 Ke6 h4 f5 e5 a5 b6 d5 b7 f3 g6 g3 b5 f4 g7 Kf5 e6 g2 b6 d3 h5 f2+ Kd2 f3 h6 a4 h7 d4 Be2 f1R Rh4 a3 Rg4 a2 Bb2 f2 Rg6 Ba3 e7 c5 Rh6 Nf6 g8B Qe8 Nh3 g1B Bf3 Ra4 Bg2 Nc6 b8B Bh2 b7 Nd7 Ng5 Nb6 Qe2 Na8 Nh3 Bc7 Re1 Be6 Bc3 Bb3 Qe5+ Kg4 Kd1 d2 Rh5 Rb4 Nf4 Ra4 Qd5 Rc4 Ke2 d3+ Ke3 d1Q Re5 d2 Ng6 Qc1 Ke2 Qb2 Kd1 Rd4 Ba7 Rf4 b8Q Nd4 Bb6 Rg1 Bba5 f1Q Bf7 Rf8 h8R Qa6 Qbb7 Rh1 Rg1 Qb6 Rh6 Qa6 Nh8 Rh2 Rb6 Rf6 Rb4 Rf4 Bg8 R8f6 Rb5 Qac6 Rb4 Bc4 Qd8 Qb3 Re4 Bb8 Re5 Qba4 Bb6 Qa6 Qd6 Bd5 Bd8 Bc7 Qb5 Qcb6 Qdc6 Bb3 Bc4 Ba4 Rb3 Nf5 Ke2 Nd4+ Ke3 d1Q Qd5 Qb1 Kd2 Qa1 Rbb1 Rh3 Kd1 Rh2 Be1 Qc3 Qb2 Qcb4 Qc1 Qc3 Rb5 Bb3 Qb1 Qb2 Bc3
1q2BKR1/2rRp1p1/1nbrB3/3Q1R1b/2Q4k/2P1P2N/n2B2qn/q1b2Bn1 b - - 0 1 illegal: No proof kernel forced: wxDB
1b2KB2/2rp1Qp1/RQ2Q2N/4N1n1/Pr1q2B1/1nbP1b2/1qQ3kn/3n2Nr b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 c5 b4 axb4 g4 h5 Ke2 hxg4 Ra3 c4 Rb3 cxb3 Ke1 Rh4 Ke2 Rh7 Ke1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Kf4 h4 e5 c4 e4 h5 g3 h6 e3 f6 b2 h7 g2 c5 e2 c6 e1B c7 b3 f3 Kg3 d3 Bd6 f7 Na6 f8N Nh6 f4 Qh4 f5 Qd4 f6 Nf7 Nd2 b1R Ndf3 b2 Ne6 Ra7 Be2 Ng5 f7 Nc5 f8Q Nb3 Qf7 Bc3 Nd8 b6 Rh6 Bb7 c8Q Bb8 Ne5 Bf3 Qcc4 Rc7 Ka6 b5 Qc2 b4 Kb5 Kf2 Ra6 Kg3 Qce6 Kh2 Nh3 g1N Bd2 Kg2 Bd1 Bb7 Bg4 N1f3 Ng1 Nh2 Qb6 Ba8 Qfe6 Bf3 Ndf7 Rf8 Nh6 Rf4 h8Q Rd1 Qf5 b1Q Qfe6 Qb2 Qhe8 Ra1 Q8f7 Re1 Ne2 Rh1 Ng1 Qc1 Qb1 Bb2 Bh5 Qe3 Bg4 Na1 Qc5 b3 Ba5 Bc3 Bb6 b2 Qc2+ Qf2 Qcd6 Nb3 Bc5 Qb1 Qb6 Rc4 Ne2 Qd4 Bf8 Qa1 Ra7 Qc1 Ka6 Rb4 Ng1+ Bd2 Ra8 b1N Ra7 Qcb2 Ra8 Rc6 Kb7 Nc3 Ra5 Nd1 Ra6 Bc7 Kc8 Bb8+ Kd8 Rc7 Qcc4 Be1 Ke8 Bd2 Qc1 Bc3 Qc2+
N1q1Rrn1/n1n1pP2/2k5/3RP1bn/3Q2b1/r2NR2N/2p1nBKR/nQr5 b - - 0 1 legal: proof: c4 b5 g4 d5 a4 dxc4 axb5 h5 g5 h4 g6 h3 Bg2 hxg2 Na3 fxg6 Nb1 g5 Ra5 g4 Ra4 Nd7 Ra1 Nb8 f4 Kd7 Kf2 c5 e4 a5 d4 g5 b4 c3 h4 a4 f5 a3 e5 c2 h5 c4 f6 c3 d5 a2 d6 Qa5 b6 Qa6 b5 Qb7 f7 Bh6 Nh3 g1N Rh2 Ra3 Nd2 Ne2 Nf3 g3+ Kg2 g4 Be3 c1R Bf2 c2 Qd4 Bg5 h6 Nc3 h7 Nd5 Ne1 Nc6 Nd3 Nc7 Rb1 a1N Rb3 Qa8 b7 Na7 b6 Kc6 b8Q Bf5 d7 Be6 Qf8 Qc8 d8R Bf5 b7 Be6 Be1 Bf5 Rd5 Bd7 Kf1 g2+ Kf2 g1N Kg2 g3 Bf2 Bg4 Qg7 Nf6 Qh6 Re8 h8R Ne2 Qh4 Rd8 Re8 Ng8 Qb4 Bf5 Qhd4 Nf4+ Kf3 Nh5 Kg2 Ra5 Ra3 Bg4 Qb1 Ra4 Nb2 Ra6 Re3 Ra3 b8N+ Kb7 Nd7 Kc6 Rf8 Re8 Nd3 Rd8 Nb6 Re8 Be1 Rd8 Kg1 g2 Na8 Re8 Kf2 g1N Kg2 Ne2 Bg3 Qb7 Bf2 Rb8 Rfd8 Rc8 R8d7 Rf8 Rd8 Qc8 Re8
3b2Qn/1b1K2B1/b6p/2k1r2Q/BR1RNb1B/3BRq2/rb2p1PP/rn4b1 b - - 0 1 legal: proof: e4 a5 c4 f5 f4 d5 b4 dxc4 bxa5 g6 Nc3 fxe4 f5 g5 Nce2 Bd7 Nf4 gxf4 Nh3 Be6 Ng1 Bc8 Ke2 Kd7 a4 Kd6 d4 e5 a6 c5 a5 b5 a7 h6 d5 c3 a6 b4 f6 e3 Kd3 c4+ Ke4 c2 f7 e2 Bb2 c1B Ra3 e1B Rg3 b3 Bd4 b2 Rg6+ Nf6+ Kf3 b1R Be3 e4+ Ke2 c3 Bf2 e3 Kd3 f3 Kc4 c2 Bd3 Nd7 Bf5 Ra1 Kb5 Ba5 Bh4 f2 Rg4 f1B+ Ne2 Bb2 Bd3 c1B Ng3 Bb7 Rb4 Ne4 Qh5 Qf6 Rg1 Be7 f8B Qf3 Bg7 Nf8 Rh1 Re8 a8B Bb6 a7 Nd2 Rg1 Be2 Re1 Bf1 Re2 Bed8 Re1 Ng6 Ne4+ Kc7 Re2 Nb1 d6+ Kd7 Re1 Bc5 Re2 Re5 Re1 Ke6 d7 Kd5 Re2 Rf8 Re1 Nh8 Re2 Ba5 Re1 Rf6 d8R+ Rd6 Rd7 Bd8 Re2 Ke6 Re1 Rda6 Rdd4 R6a2 Re2 Bc8 Bc6 Bb7 Be8 Bd2 Rdc4 Kd5 a8Q Be1 Qb8 Bg3 Re1 Bf4 Rd4+ Ke6 Kc4 Ba7 Ba4 Bc5 Kb5 Be2 Rdc4 Kd5 Qc8 Bf1 Qa8 Bcb6 Rd4+ Ke6+ Rd5 Bf6 Qg8+ Ke7 Bc4 Bd3 Rc1 e2 Rc3 Bg1 Ra3 Bc2 Re3 Bd3 Kb6 B6g5 Kc7 Bf6 Bcb3 Bda6 Bc2 B6g5 Rdd4 Bf6 Qa8 Ke6 Bd3 Be7 Rdc4 Kd5 Kd7 Bf6 Nf2 Be7 Rd4+ Kc5 Qg8 Bd8 Ne4+
2Q1nBbr/1rR3p1/Rbb1b1P1/NnqQ3b/qp3K1b/k3B1P1/1Q6/1B2B3 b - - 0 1 illegal: No proof kernel
3n1qkq/2b4N/1r1q4/KbN3P1/QQNr2pq/1R1pq1R1/2q2QP1/3n1QB1 b - - 0 1 illegal: No proof kernel
8/5N2/Qbp1R1N1/bnB1RNkn/pq1bn3/rPbb4/QrP2Q1K/n4N2 b - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 d5 Nf3 dxe4 Bd3 f5 Be2 g3 Ng1 g2 Bg4 fxg4 f4 Kf7 Kf2 Kg6 Kg3 a5 d4 e5 h4 e3 b6 c6 d5 e4 d6 e2 b7 e1N d7 e3 Rh2 e2 Nf3 g1B Qd6+ Nf6 Qd5 Qe7 d8N Bf5 Rf2 Nd3 Qc5 e1B Bd2 Ne4+ Kg2 g3 Qc3 Qb4 Qc4 Nc1 Be3 Nd7 b8Q Nb3 Qb6 Ndf6 Nbd2 Nh5 Nf1 Bc3 Re1 Na1 Qba6 a4 Qb3 Rb8 Qa2 Be7 Nf7 Bd8 Kh1 Ba5 Bc5 Rb6 Rd2 Bgd4 Rde2 g2+ Kh2 g1N Re3 Kf6 R1e2 Bh7 f5 g5 Re1 g4 R3e2 Neg3 Re5 Ne4 Re3 Ne2 Re6+ Kg7 f6+ Kg6 Re5 Bd2 Re6 N2c3 Re5 Nb5 Re6 Ng7 h5+ Kf5 h6 Nh5 Re1 B2c3 Nh4+ Kf4 Nf5 g3+ Kh3 g2 Kh2 Bg6 h7 Rhb8 h8N g1B+ Kh3 Bge3 Kh2 Bh7 Ng6+ Kg4 Nfh8 Kg5 f7 R8b7 f8Q Rf7 Nfe7 Rf3 Nf5 Rb8 Bd6 Bdb6 Bc5 Bed4 Qf7 Bd2 Re2 Ra3 Re3 B2c3 Qf8 Nf2 R3e5 Ne4 Nf7+ Kg4 b3 Nef6 Ng7 Bg1+ Kh1 Rd8 Ng5 Rd1 Qf7 Bgd4 Kh2 Rb1 Ne7 Bd3 Ng6 Ne4 Qf2 Rb2 Nf7 Nd2 Nd6 Ne4 Ngf5 Kg5 Nf7+
1b1r4/p2bp2r/R2nq1kQ/1N1brR2/3P3B/b1B2b2/rQB1P2K/n4R1B b - - 0 1 legal: proof: f4 b5 g4 g5 c4 d5 a4 dxc4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 c5 Kg2 f5 h4 Kf7 b4 g3 d4 c3 h5 c4 b6 c2 h6 c3 b5 f3+ Kh3 f2 h7 g2 b7 f4+ Kh2 f3 b6 Kg6 Qd2 Bd7 Qf4 Nf6 Qe3 Ne4 Bd2 c1R Nh3 g1R Ra5 c2 Qd3 Na6 b8R Ra1 b7 c1B Rf5 Qb6 Bg2 f1B Qc2 f2 Qb2 Nb4 Bc3 Bh6 Bf3 Rd8 h8Q Ra2 Rc8 Qa6 b8B Nd6 Rc6 Bg2 Bd5 f1B Nf2 Qb6 Nd1 Bf3 Be4 B1g2 Bc2 Rf1 Bc7 Rf2 Rf1 Bg7 Qh4 Be5+ Qf4 Qa6 Rb6 Qc4 Ra6 Qe6 Ba5 Rac8 Be1 Bd5 Nc3 Rc5 Nb5 Rf3 Bh4 Rh3+ Kg1 Bgf3 Qd2 Nc6 Bc3 Na5 Qe3 Nb3 Qf4 Kg7 g6 Na1 Qh2 Kh6 g7 Kg6 g8B Bg3 Qb3 Ba3 Qb2 Nb7 Qh1 Bb8 Qh2 Nd6 Qf4 Rg3+ Kh2 Rg5 Qe3 Rh5 Qf4 Rh7 Qfc1 B5c6 Qe3 Re5 Qec1 Qf6 Bd5 Qe6 Bde4 Bd5 Qe3 Bg4 Bh1 Bgf3 Qh6+
1Rr1bBRK/1n2np2/r1b4n/2Q1n1bR/rBBq3p/1bPN3P/3Q4/2R4k b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Nd2 e4 Ndf3 exf3 Ra4 Qf6 Ra1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 b4 a5 g4 d5+ Kd3 Ke5 e4 h4 c3 f2 g5 a4 b6 a3 g6 a2 g7 f3 h3 Bb7 b5 Nh6 g8R Bc6 b7 Nd7 b8R Nc5+ Kc2 d3+ Kb2 d4 b6 d2 b7 Kf4 e5 d3 e6 Be7 Rg2 Bg5 e7 Ra4 e8Q Qd4 Qe7 Rc8 Qf8 Ke3 Ne2 Ke4 Qc2 d1B Qd2 Bb3 Nf4 Be8 Rb1 a1R Be2 f1N Rgg1 Be7 Rg8 f2 Rhg1 Bd8 R1g5 Ng3 Rh5 Ngf5 Bf1 Kf3 Qd6 Ne4 Qc5 Bg5 Be2+ Kg3 Bf1 Bd5 Be2 Bdc6 Kb3 Kh2 Ba3 f1B Bb4 Ne7 Rc1 Bg2 Bf1 Ra6 Be2 R1a4 Bf1 Kh1 Be2+ Qg1 Kc4 Qd1 Kd4 Nd6 Ke5 Bgd5 Ng2 Bb3 Ne1 Be3 Kf6 Bf4 Kg7 Bg5 Qf4 d2 Nd3 Qg1 Bf1 d1N Qd2 Ne3 Kh8 Qf2 Nf4 Qg1 Bc4 Neg4 Nd3 Qd1 Ra8 Ne5 b8B Nb7 Bd6 Nd5 Bf8 Ne7 Rb8 Qg1 Ne1 Qd4 Nd3+
K2QnNNk/1rr3rB/Q6b/2QnrPNb/5p2/n4P2/3p1R1q/2Q1Bb1b b - - 0 1 illegal: No proof kernel
3r2b1/rB3p2/r2rQ3/2b1R1n1/1RnR1RNb/PnNbp3/4P3/qN2kQK1 b - - 0 1 legal: proof: f4 a5 g4 g5 b4 axb4 c4 d5 cxd5 h6 Bb2 Ra7 Bf6 gxf4 g5 Ra4 g6 Ra8 Bg5 hxg5 Kf2 Kd7 d4 Kd6 h4 c5 a3 b5 h5 e5 h6 f3 g7 b3 h7 b4 Nh3 g4 Qe1 c4 Ng1 g3+ Ke3 g2 Kf2 c3 Nd2 c2 Rh3 c1N Rh4 e4 Rh6+ Nf6 g8R b2 Ra2 b1R Nh3 g1B+ Kg3 b3 Qd1 f2 Kg2 e3 Rg4 b2 Rh5 Nbd7 Rgg5 Ba6 Re5 Nb6 Rh4 Nb3 Ng5 Nc4 Rf4 Ne4 Qe1 Ra1 Nb1 Ra7 Kh1 Qc7 Bg2 f1R Bf3 Rg8 h8Q Bf2+ Kg2 Qb6 Qh3 Bh4 Qg4 Rf2+ Kg1 Qb4 Qf1 Qe1 Bh1 Be7 Qc8 Rd8 Qf5 Ncd2 Bg2 Bd3 Bf3 Nc4 Qe6+ Kc7 d6+ Kb6 d5 Kc5 d7 Kd4 Bh1 Bc5 d6 Qd1 Nc3 b1B Rb2 Bbc2 Bf3 Rc1 Nb1 Qe1 Bh1 Rd1 Bg2 Nbd2 Rb4 Nb3 Nd2 Kc3 Nb1+ Kb2 Bf3 Kc1 Bh1 Rd2 Bf3 Kd1 Bg2 Nf6 Bb7 Nh7 Ne4 Ng5 Nec3+ Kc1 Rfe4 Rf6 Rf4 Bh7 Nb5 Bg8 N5c3 Rf8 d8R Bd3 d7 Qd1 Rc8 Rd8 Rc6 Kc2 Rd6 Qc1 Rdd5 Qb2 Rdd4 Qa1 Qd5 Rfa6 Qe6 Rb8 d8N Rba8 Nc6 Rd8 Red5 Rd1 Ne5 Rdd6 Ng4 Rd8 Nb5 Rd2 Qf3 Kd1 N5c3+ Ke1 Re5 Bdh7 Rde4 R2d6 Rd4 Bd3 Qf1#
Rq1N1Q2/1Bn2NQr/2r2P2/1bp1k2r/n1P3b1/B2p4/3NNb1n/n1r3BK b - - 0 1 legal: proof: d4 h5 b4 e5 g4 hxg4 a3 exd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Bd6 Bg2 Bc5 Bf1 Bf8 e4 Kf7 c4 Kf6 h4 d5 f4 g5 f5 a5 b6 a4 h5 d3 b5 d2+ Ke2 g2 Kf2 a3 h6 a2 b7 a1N h7 d4 b6 g3+ Kf3 g4+ Kf4 d3 Qe2 d1B Ba3 Ba4 Bc1 Na6 b8N Bb5 b7 Ra7 Nd2 Bc5 Ba3 Nh6 Nc6 Bf2 b8B Qe8 Nd8 c5 Qd1 Nc7 Ne2 g1N Bg2 Be6 Bf3 g2 Qf1 g3 e5+ Ke7 Qb1 Ng4 Bb7 Nh2 Qb2 Bc8 e6 Kd6 e7 Bcd7 Nc3 Ne2+ Ke4 Qg8 e8Q g1R f6 g2 Qc2 Bg4 Qf8+ Kd7 Qd1 Ra6 Qa4 Rb6 Qa7 Rc1 Rf1 g1R Rd1 Nd4 Ne2 Rh1 Kf4 Rc6 Re1 Bg1 Kg3 Be3 Kg2 Bf2 Qe8+ Kd6 Qf8+ Ke5 Rd1 Nhf3 Rf1 Rh6 Rg1 Nh2 Kh1 Rh5 Rf1 Qe6 Rd1 Qc8 Rf1 Rg8 h8N Rg7 Rd1 Rgh7 Rf1 Ndf3 Re1 Ng5 Nhf7+ Kf5 Rf1 Ne4 Re1 Nc3 Rg1 N7d5 Bf4 Nc7 Be3 Na4 Bd4 Be1 Rg2 Qb8 Bg1 Bh3 Rg8 Bg4 Ba8 Bf2 Qb7 Rb6 Qg2 Rc6 Bb7 Bh3 Qgg7 Bg4 Rh8 Rb6 Qfg8 Rc6 Ne6 Qa7 Qd8 Qa8 Qd6 Qa7 Ra8 Qb8 Ned8 Nb3 Nf3 Na1 Qdf8 Ke4 Nd2+ Kf5 Ng5 Ke5 Ngf7+
b4q2/Q1K4p/1rnp4/PN2QBbP/NBb4k/2NB1n2/1r1b4/r2NnrR1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 d6 fxg4 d7+ Kf7 d4 c6 a4 Ra6 d5 Rb6 d6 Ra6 Ra3 Qb6 d8N+ Kf6 d7 Ra7 Rd3 Ra8 Rd6+ exd6 Nf7 Ke6 Nd8+ Ke7 Kd2 Kf6 Kd3 g5 Kc4 b3 e4 b2 h4 c5 Kd5 g3 f4 g2 h5 g4 f5 g3 Rh4 c4 Qb3 c3 Qc2 Be7 Qf2 c2 Rh1 Nh6 Bf4 c1B Ne2 g1N Bh3 g2 Nbc3 b1R Nd1 Ng4 Nc6 Rb2 d8Q Nf3 Bd2 g1R Qe8 Rf1 Nec3 Qd8 Nd4 b5 Rg1 b4 Ndb5 b3 Qa7 Nc6 Be1 Kg5 f6 Rf8 f7 Bd2 e5 Bb7 e6 Rb8 a5 Ba8 Ne2 Rb6 Nec3 Rg8 f8N Bf6 e7 Qc8 Bg2 Nf2 Ne6+ Kh4 Nc5 Bfg5 Bh3 Rg6 Qh8 Qf8 e8B Re6 Bg4 Re4 Qhg7 Ra4 Qe5 Raa2 N5a4 Ra1 Rg3 Nd3 Bg6 Bb7 B4f5 Ba8 Bf2 Nde1 Bc5 Rba2 Rg1 b2 Bb4 b1B Bd3 Rb2 Bgf5 Bc2 Ke6 Bb3+ Kd7 Bc4 Kc7
1QrrrR2/Q2B2bn/p1qQbN2/b6K/P1pR4/2b3N1/RnQn2rP/5k2 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 c5 bxc5 h5 Ba3 hxg4 Bb2 Rh7 Bc1 Rh8 c4 d6 c6 Rh6 c7 Rf6 c5 Rg6 c6 Rh6 Ba3 Rh8 Bc5 dxc5 Kf2 Ke7 a4 Kd6 d4 Kd5 e3 Ke4 d5 f5 d6 g5 d7 b5 Qd6 a6 Qf6 f3 Kg3 b4 Nh3 c4 Na3 f2 Qg6 b3 Rb1 b2 Nc2 Bg7 Bg2+ Kd3 e4 Ke2 e5 f1R e6 Re1 e7 Qe8 d8R Be6 c8Q Nd7 c7 Ne5 Na3 Qc6 e8Q Nf6 Ra1 b1R Rd5 Nd3 Ra2+ Nb2 Ra5 Nh7 Qb7 Rc8 Qef7 Rhd8 Qb6 Rbc1 Bd5 Rc2 Ng1+ Kf1 Nb1 Rd2 Qb3 Ree2 Qh6 Re8 Bf3 Rdd8 Nc3 Bd5 Qd7 Ke1 Qf6 Ra8 c8Q Bf7 Qcc7 Rac8 Qh6 Rc2 Nce2 f4+ Kg2 g3 Kh3 g4+ Kh4 g2 Qcb8 g3 Bg4 f3 Nc3 f2 Ne4 f1N Ne2 g1B Rf5 g2 Qda7 Bb6 Qhd6 g1B N2g3 Rg2 Qc2 B1d4 Rg1 Bg8 Rf8 Bc3 Bd7 Bba5 Nf6 Be6 Kh5 Rf2 Rg2 Re2 Rf2 Nd2 Rf4 Rg2 Rd4 Kf2 Nh1+ Kf1 Ng3+
NK1Nq3/2r1RrRQ/1b1P3p/n2bn2P/2Qqp2R/3b3r/B5rk/N2b2R1 b - - 0 1 legal: proof: e4 b5 b4 c5 f4 d5 a4 dxe4 Ba3 g5 axb5 gxf4 b6 Nh6 b5 Ng8 Bb4 cxb4 Qh5 e3 Ke2 Kd7 Kf3 Kd6 Ke4 a5 h4 e5 c4 f5+ Kd3 e4+ Kd4 a4 g4 e2 b7 e1R g5 b3 b6 b2 g6 a3 g7 a2 Nc3 b1B Nge2 f3 Nd5 f4 Nc7 f2 Nc1 f3 Nb3 Ra7 Na8 Nd7 b8R Ne7 g8R Re2 b7 Qe8 Rg7 Bc2 c5+ Ke6 c6 Ne5 Re1 a1Q+ Kc5 Bd1 c7 N7c6+ Kb6 Na5 d4 Be7 Rh3 Bd8 d5+ Kf6 d6 Be6 Rc8 Bd5 b8N Rd2 Bd3 f1B Nc6 f2 Bb1 Bd3 Reg1 f1R Ba2 Rg2 Rhh1 Qc3 Na1 Rf3 Qh6+ Kf5 Rh3 Rf8 h5 Rf7 Rh4 Re3 Rb8 Rh3 Rb7 Qc4 Rg6 Qa4 Qg7 h6 Qh7 Rg4 Rg7+ Kf4 Kc5 Kf3 c8Q Rg2 Re7 Rd7 Qc7 Kf2 Kb6 Qb4+ Ka7 Qd4+ Kb8 Kf3 Qc8 Bb6 Nd8 Ra7 Qc3 Rc7 Qh8 Kf2 Qc4 Kf3 Rh7 Kg3 Rg7+ Kh2 Qh7
1qRbnN1r/N2k3r/QB1n2q1/K1p1pb2/2PB1n2/7P/nN1r1r2/1B2Q2N b - - 0 1 legal: proof: e4 h5 g4 hxg4 b4 f5 a3 d5 Ra2 dxe4 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Qd3 Bh3 Qd4 Bf1 Qd8 f4 g5 c4 c5 d4 a5 Kd2 e5 Kc3 a4 b6 a3 f5 a2 b7 a1N b5 g2 f6 g3 h3 g4 d5 e3 b6 e2 f7+ Kd7 d6 e1N Bd2 Nf6 Be3 Be7 Ne2 g1Q Bd4 g2 Ng3 Ra2 Bd3 Nc6 b8Q Nac2 b7 Na5 Qa8 Nb4 Qa6 Rd2 b8B Nb7 Bc7 Qg8 Bb6 Na2+ Kb3 Ne8 Ka4 Bd8 Nc3 Qg6 Be4 Nd3 Qe1 Nf4 Bb1 Qf2 Rf1 g1R Kb5 Rg2 Nh1 g3 Na4 Qf3 Nb2 Rgf2 Rg1 g2 Rf1 g1R Ka4 Ke6 d7 Nbd6 Ka5 Qb7 f8N+ Ke7 Nd3 Rg5 Nb2 Rgh5 Rg1 R5h7 Rf1 Bc7 d8N Bf5 Rg1 Qb8 Nc6+ Kf6 Na7 Ke7 Ne6 Kd7 Rg2 Qh6 Rg8 Qg6 Rf8 Ng7 Rc8 Nge8 Qd1 Bd8 Qc1 Rf1 Qe1 Rff2 Nf8+
5bRK/3k1q1b/2qbqP1n/1p3rn1/b2pNQQr/5N2/3Pq3/1BQ2BBB b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 b4 c6 b6 Ba6 b5 Bg7 Ra5 Bc8 b7 Bh6 b6 Bf8 Rb5 cxb5 Ke2 d5 Ke3 a5 Kf4 h5 Kg5 e5+ Kg6 a4 f4 a3 c4 a2 g4 a1B f5 h3 g5 h2 c5 h4 c6 e3 c7 h3 Bd3 e2 Qb3 e1Q Bb2 e4 Qa4 e3 Ne2 Nc6 b8Q Nh6 b7 Kd7 Ng1 e2 Nc3 Nd4 Nf3 Qe7 Ne4 Ne6 Rg1 h1B Bb1 h2 Bd4 Bb2 Qc4 Ba3 Qc1 Bd6 f6 Ra3 Bf2 d4 Rg4 Qf1 Bg1 e1Q Qa8 Qe3 b8Q Qfe2 Qa4 Bg2 Qad1 h1Q Rg3 Bb7 Rg4 Bd5 c8B+ Kd8 Rg3 Bb3 Bb7+ Kd7 Bd5 Ba4 Ba8 Bc5 Qf4 Bd6 Bb7 Rc3 Bd5 Rc5 Bc4 Qe1 Bf1 Rf5 Qe2 Bh3 Qg2 Bg4 Qh3 Q1f2 Qh5 Bh3 Qhg4 Qfe2 Rg2 Nf7 Rg3 Rh4 Rg2 Nh6 Rg3 Qe8+ Kh7 Qh5 g6 Ng5+ Kh8 Qhg2 g7 Qf7 g8B Qh1 Nf2 Qee6 Bh7 Rc5 Bhe4 Rf5 Nh2 Qhf3 Ba8 Qc3 Bh1 Qc6 Ne4 Bg2 Nc3 Be4 Nf3 Re5 Rg2 Bh7 Ne4 Rf5 Qh5 Nh3 Rg8 Ng5 Qhg4
RR2nN2/2rp2rr/2pNNQR1/bBN1n2P/3P1n1K/2rb4/3kq3/Qn4q1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 b5 g4 hxg4 Ba3 bxc4 b5 f5 Bb4 axb4 exf5 Ra3 Qb3 Ra7 Qd1 Ra8 f4 Kf7 Kf2 Kf6 Kg3 e5 d4 g5 a4 c3 h4 b3 h5 b2 a5 c2 b6 c1R a6 e4 b7 e3 a7 e2 Ra4 e1N Qb3 Rh7 Qd3 Rc3 Nf3 Ng2 Rh4 Bb4 Qe4 Qe8 Rh3 Ba5 Rb4 Nc6 b8N Ne5 Nd2 b1N Bb5 c6 Nc4 Ba6 Nd6 Qe6 Qe1 Qa2 Bf1 Bd3 Na6 Rc8 a8R Qe2 Rbb8 Rc7 Rh1 Rg7 Nc5 Rh7 Kh2 g3+ Kh3 Nh4 Qd1 g2 Rg1 g4+ Kg3 Nhg6 Ng5 Qa2 Nge6 Qe2 Kh2 g3+ Kh3 Nd2 Qa1 Nb1 Rh1 g1R Rh2 N6e7 Kh4 g2 Rh3 Nd5 Rg3 Ke7 Rg6 Ngf6 Nc4 Ne8 f6+ Kf7 f5 Nf4 Rh6 Kg8 f7+ Kh8 f8N Kg8 Nd8 Kg7 Nde6+ Kf7 Rg6 Ke7 Na3 Kd6 f6 Kd5 Nb5 Kc4 f7 Kb4 Na4 Kb3 Nd6+ Kc2 Nac5 Qd1 Be2 Kd2 Bg4 Qf1 Bd1 Qe2 Ba4 Rd1 Bb5 g1Q Qa3 Rf1 Qa1 Rg7 Nh7 Rf3 f8Q Rg3 Qe7 Rg2 Nhf8 Rh7 Qf6 Rg3 Rh6 Rgg7 Rg6
B5k1/K1nB4/1P4pB/p3bQ1N/rBq5/r1b1r1bb/PnRr4/R1Qq2R1 b - - 0 1 legal: proof: d4 b5 c4 bxc4 g4 f5 g5 e5 dxe5 f4 Nc3 h6 Ne4 hxg5 Ng3 fxg3 Qd6 g4 Qd4 Ne7 Qd1 Ng8 Kd2 Kf7 Kc3 c5 h4 d5 f4 d4+ Kc2 g6 e4 c3 Kb3 g2 Ka4 c2 Kb5 c4 b4 c3 h5 d3 h6 d2 f5 g3 f6 Ne7 e6+ Kg8 e5 Nd5 e7 Nb6 e8B Na6 e6 Bd6 e7 Nc4 Bd3 Nc7+ Kc6 Nb2 Ne2 g1B b5 g2 b6 Bf2 Be4 g1R Nf4 Rg3 Rg1 a5 Bg2 Bh3 Kb7 Rd3 Qe1 d1R Bf3 Rb8+ Ka7 Bg3 Bb5 Qd7 Ba8 Re8 Be3 Qg4 Bd7 c1Q Bc5 c2 f7+ Kh7 f8Q Ra3 Qf6 Kg8 Qf5 Rd5 Qe3 Qcd1 Qd2 c1B h7+ Kg7 Qdc2 Bd2 Qc1 Bc3 Be3 Rc8 e8R Rb8 Re5 Rbe8 Bc5 Rd3 Re2 Ree3 Rc2 Bde5 Bd6 Rd2 Be7 Nd5 Bg5 Rc8 Be7 Rc4 h8B+ Kg8 Bg7 Nc7 Bh6 Rca4 Nh5 Qc4 Bb4
1B6/R1qR1n1k/q1Q2p1p/3r1q2/3rNBQP/r1nq3r/B3BP2/b3KQ1r b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 d5 b5 d3 b6 d4 Qg4 axb6 Qe2 b5 Qd1 b4 Nd2 g5 Ndf3 Be6 Nh4 Bd5 exd5 Kd7 Nhf3 Ke8 h4 g4 Nh3 gxh3 Ng1 Ra4 Ba3 Ra6 Bc1 Ra8 g4 e5 c4 b5 a4 b3 g5 e4 g6 h2 d6 d2+ Ke2 h6 c5 b2 g7 b1R a5 e3 c6 d3+ Kf3 e2 a6 e1Q c7 b4 c8B b3 a7 b2 Nh3 Nf6 g8Q Ne4 Qb3 d1Q+ Kg2 d2 Qb6 Nc3 Bc4 Nd7 Be6 Qc7 Rf1 h1R Bb3 Qe6 Ba6 Ne5 Qg4 Bg7 d7+ Kf8 d8B Kg8 Ng5 Rh3 Ne4 Kh7 Qb5 Bf6 Be7 Rhd8 Ba2 Rd4 Bd6 Qc2 Re1 d1R Qf1 Qd3 Bf4 Qec8 B6c4 Qa6 Re2 Rbc1 Rd2 b1Q Kg1 Qbb5 Kg2 Qbd7 Bb5 Qf5 Bbc4 Rb8 a8Q Rb3 Qc6 Ra3 Bb5 Qb1 Be2 Qbd3 Bc5 Rb1 Ba7 Rb5 Bb8 Rbd5 Rb1 Rc1 Rb7 Rb1 Ra7 Ra1 Qb1 Bg7 Qbb5 Rah1 Rd1 Nf3 Rd2 Ng5 Qb1 Bf6 Qg1 Be5 Kf1 f6 Ke1 Nf7 Qf1 Rb4 Bd1 Rc5 Bab3 Na2 Qg3 Qe3+ Be2 Ba1 Qd5 Nc3 Qg4 Rba4 Rd4 Qed3 Qc6 Rac4 Rd5 Rd4 Rd7 Rcd5 Ba2
1RRKnbr1/1pp4n/3Qk3/1BP2q2/B2Q2q1/nPBr1r2/qn1R4/R1r1N3 b - - 0 1 legal: proof: g4 f5 e4 fxg4 b3 a5 e5 a4 e6 a3 Nc3 dxe6 Nh3 e5 Ng1 e4 h3 g5 Nb1 g3 Nc3 g2 Na4 g4 Nb2 axb2 Ke2 g3 Ke1 Bg4 hxg4 Qd6 Rh5 Qd4 Rh1 Qd8 Ke2 Bg7 Ke3 Kf7 Kf4 b1Q Kf5 h5 c4 e5 f4 h4 d4 h3 a4 h2 c5 Qe8 a5 Qa4 a6 Nf6 g5 Rd8 a7 Nbd7 d5 Nf8 d6 Qaa2 d7 N8h7 g6+ Ke7 Bd3 e3 Nf3 g1Q Bd2 g2 Bc3 e4 Bf1 Rf8 d8R e2 Qd4 e1N Be2 Rb8 a8R e3+ Ke5 Bh6 g7 Nc2 g8B Na3 Bd5 Rf7 Bec4 e2 Bc6 e1N Ba4 Qbc2 Rg8 Rbf8 Bcb5 Nd3+ Kf5 Nb2+ Ke5 Qgd1 Rb8 g1R Rh8 Rgg7 Rg1 h1R Rg2 Rg3 Rd2 Rfg7 Rg8 Rff7 Rgc8 Ne8 Kd5 Rg8 Ke5 Kf8 Ke6 Rf6+ Kd7 Kf7 Kd8 Ke6 Ne5 Qg4 Nf3 Rc1 Ne1 Qcg6 f5+ Kf7 Qf4 Rd3+ Qd6 Re6 Qd4 Ree3 f6 Q6f5 Rb1 Rf3 Ra1 Ke6 f7 Qff4 f8Q Qe4 Qf4 Qef5 Qh2 Bf8 Qhd6+
1R2Qqn1/6P1/Rr1p1p2/2kprP1Q/QNb3n1/2RQN3/3q3b/KB1rnq2 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 d5 e6 Be3 exd5 Bd4 cxd4 Kd2 Ke7 Kc1 Kd6 g4 h5 e4 a5 b4 f6 Kb2 h3 c4 h4 f4 a4 b6 h2 f5 h3 c5+ Kc6 e5 d6 b5+ Kd7 g5 d3 g6 d2 e6+ Ke7 c6 Bh6 g7 Qf8 c7 Bf4 b7 Ra6 b6 Nd7 b8R Ne5 b7 Ng4 Nc3 a3+ Ka2 Bd7 c8Q Rb6 Qc4 Bb5 Qda4 d1Q Bd3 Qd2+ Bc2 Ba6 Qd3 Rh4 Rc1 Bc4+ Ka1 a2 Nf3 Be5 Rhf1 h1R Nd4 h2 Bb1 Bf4 Rf3 Rd1 Nc2 h1Q Nb4 Qf1 Rg3 Rh1 Rh3 Re1 Nd1 Bh2 Rc3 Re5 Ne3 Rg1 Rh8 Rh1 Ra8 Rg1 Ra6 Kd8 e7+ Kc7 e8Q Rh1 Nec2 Rg1 Kb2 a1N Qh5 Rh1 Ka3 Rg1 Ne3 Nc2+ Kb2 Ne1+ Ka1 Rh1 Qd1 Kd7 b8Q Rg1 Nbc2 Kc6 Nb4+ Kc5 Qbe8 Rg3 Qda4 Rf3 Qe6 Rf4 Qee8 Rd4 Qdc2 Qde2 Qe4 Rd1 Qd3 Qd2 Qhf7 Qe7 Qb8 N8h6 Qh5 Qe8 Rf8 Ng8 Qd8 Qf7 Qdd7 Qe7 Rb8 Qf8 Qde8
1R3qNQ/1r1pRPQ1/3RNn1K/4nB2/4np1N/2Nq1p2/bb1r1P1q/r6k b - - 0 1 illegal: No proof kernel
1Kb5/4q3/Bprnrr1Q/bP3QbQ/k1qp1n2/6B1/P1N1NBqp/1R1Q4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 d4 c5 b5 cxd4 Nd2 Nh6 Rb1 Ng8 Rb4 axb4 Ke2 d3+ Ke3 d5 Kf4 Kd7 Ke5 h5 c4 d4 f4 h3 g4 b3 f6 h4 c5 b2 f7 b1R c6+ Kc7 f5 Kb6 g5 Ka5 c7 Rh6 g6 Ra6 f6 Be6 c8Q Nc6+ Kf4 Ne5 g7 Nc4 Qe2 Ka4 Qa8 Bc8 Qe1 e5+ Ke4 Ne7 g8Q Ng6 Nb3 d2 Na1 d1Q Bg2 Be7 f8Q Qe2+ Be3 Rc1 f7 Nf4 Qh7 Bg5 Qf5 Rf6 Qh6 Qe7 Qf1 Qc2+ Qd3 Qb3 Bf2 Rc3 Nc2 Qbb4 Qfg6 Qb3 Qb8 Rae6 Qgh5 Qbb4 Qd6 Qc5 Qd5 Qc6 Kf3 e4+ Kg4 b6 Ne2 Qcc5 Rb1 Qcc7 Qd1 e3 Nc1 e2 Qe5 e1B Bb7 h2 Ne2 h1Q Ba6 Rg6 Kf5 h3 Qc5 h2 Qe5 Qf1 Ke4 Nh3 Kd5 Qg2+ Qe4 Rgf6 f8B Qb4 Bd6 Qe7 Bdg3 Nd6 Na3+ Rc2 Qef3 Bc3 Kc6 Qb3 Qd5 Nf4 Qe4 Qe8+ Kc7 Qe7+ Kb8 Ba5 Qe5 Rc6 Nc2 Qc4 Qf5
b1b1Q2n/K1Nkr2Q/Rpb1N3/q3R3/4N1N1/pPB1Q2p/P2q2n1/r4n1r b - - 1 2 legal: proof: g4 e5 h4 c5 f4 exf4 d4 cxd4 g5 g6 Bh3 f3 Bf5 gxf5 g6 f4 Na3 Bh6 Nb1 Bg5 hxg5 Qb6 Rh4 Qc7 Rh1 Qd8 Kd2 f5 Kd3 h5 Kc4 a5 Kc5 d5 e4 h4 c4 a4 g7 d3 g6 a3 e5 f2 e6 f1B b3 d4 e7 d2 Nc3 d3 Nd5 f3 Rh2 f2 Qe2 d1B Rh1 f4 Nc3 d2 Nf3 Ra7 Nd5 Nf6 g8Q+ Kd7 g7 Bg2 Bb2 f1R Qe3 Nh5 Qh7 Nc6 g8N Ne5 Nd4 f3 Nc7 f2 Kb6 Nf4 c5 Neg6 Bc3 Bdf3 Ne6 d1Q Nh6 Bc6 Ng4 Qd2 Re1 Bgd5 Rh3 Ng2 Rf3 Rh1 Rf6 f1N Re2 Rf8 e8N+ Rf7 Nd6 h3 Ne4 Nh8 Rh6 Ra4 Re1 Rd4 Ka7 Re7 N6g5 Ba4 Ra6 Bac6 Nge6 b6 Ba1 Qa5 Bc3 Rd1 Re2 Ba4 Re1 Ba8 Re2 Ra1 Re1 Rf7 c6+ Ke7 Re2 Qd2 Qf3 Qad5 Ng3 Qe1 Nb5 Qed2 Re5 Bcb7 c7 Ke8 Qe3 Re7 Ne4 Qc5 Nbd4 Bac6 Nb5 Qb4 Qg7 Qa5 Qh7 Rg7 c8Q+ Ke7 Qb8 Kd7 Nbc7 Re7 Qbg8 Bc8 Qe8#
6nR/5rk1/1bq1n2p/4Nn1B/2NQ3P/qQP2p1Q/pQbB2bK/1q1Nr3 b - - 0 1 legal: proof: d4 g5 b4 c5 f4 gxf4 a3 cxd4 Ra2 e5 a4 b5 Ra3 e4 Rf3 exf3 axb5 Qc7 Nd2 Qb6 Nb1 Qd8 Kf2 d5 e4 a5 g4 f5 h4 Kf7 g5 a4 b6 a3 c3 h6 g6+ Kg7 b5 d3 e5 a2 b7 d2 e6 d4 e7 d3 e8Q Na6 b8N Qb6+ Qe3 Nc5 Qe6 Qc6 b6 Ra7 Qe4 Rf7 b7 Ne6 Nd7 Bc5+ Qe3 Bb6 b8Q Bb7 Na3 Ba8 Qb3 d1B Nh3 d2 Kg1 f2+ Kh2 f3 Be2 f1Q Nc4 f2 Nde5 f4 Qd4 Bc2 Bh5 d1Q Bd2 Qb1 Rg1 Qfc1 Qc8 Qa3 Qb2 Ne7 Rg5 Re8 Rf5 Ng8 Qcd7 Rfe7 Rf8 Rf7 Qc8 Qcc5 Qcd7 Bg2 Qc8 f3 Qcd7 Nf6 Rh8 Ng8 Qc8 Qc6 Qcd7 Kf6 g7 f1N+ Kg1 Qe7 Nf2 Ng3+ Kh2 Qa3 Nd1 Nf5 Qc8 Rd8 Qg1 Rd3 Qd4 Re3 Qcd7 Nge7 g8Q Re1 Qb8 Ng8 Qbb7 Kg7 Qb8 Ba7 Q8b3 Bb6 Qg4+ Ng5 Qh3 Ne6 Qd4
KNb1rq2/1Q2p3/2Q4Q/pp2P2B/qnBb4/BrP1b3/5q2/krN2BnR b - - 0 1 illegal: No proof kernel
2qb2N1/Q4qp1/b2P1pq1/2Q1B1nr/NK2nr2/3p3Q/NNRR1nP1/4b2k b - - 0 1 illegal: No proof kernel
7k/Pq1Q2pq/N2bB2p/KR1R1r1n/4Q3/br3n2/nBQ1R1Pp/R2b2r1 b - - 0 1 illegal: No proof kernel
n1qR3n/R6n/bb1N2nR/3p1N1N/rprP3P/3bQ2B/k2n3p/1N4QK b - - 0 1 illegal: No proof kernel
2Q2n1r/4QbN1/1RK1N3/1rn1bN2/2Pp4/2nRr1pp/1RqP1Nkr/r1B5 b - - 0 1 illegal: No proof kernel
3qnR2/p1p1r1n1/1N1BNPn1/1N2bb1n/r2Q4/pQbRK1Q1/Q1P2nk1/8 b - - 0 1 legal: proof: g4 e5 d4 h5 dxe5 f5 a4 b5 Nh3 bxa4 Nc3 f4 Bg2 hxg4 Nb1 f3 Ng1 fxg2 Kd2 Ke7 h4 Ke6 b4 Kd5 f4 Ke4 f5 d5 h5 g5 h6 a3 e6 d4 h7 d3 b5 g3 e3 g4 b6 Ne7 b7 Bg7 Rh3 Be5 Qe1 Nd7 b8N Ng6 e7 Nf6 Nd7 Ne8 Nf3 g1N Nd4 g2 Qg3 Ne2 Nb6 g1N Ne6 Nd4 Bb2 Rf8 h8Q Nge2 Bc3 Rf6 Bb4 Nef4 Bd6 Nh5 Qg8 Rf7 f6 Rb8 Nc3+ Kf5 Nb5 Ke4 Rb1 Nf5 Rb3 Nfg7 Rc3 Nhf4 Rh8 Nfh5 Qg1 Kf3 e4 g3 Qd4 Kg2 Ke3 d2 Rd3 d1N+ Kd2 Nf2 Ke3 Rf8 Qf7 Nh4 Qg6 Rf7 Rf8 Kh3 Qg5 g2 Qf4 g1B Qf3+ Bg3 e5 Ng6 Qfd5 B1h2 Qa2 Kg2 Bb4 Nd6 e8Q Re7 Qf7 Nde8 Bd6 Rb7 Ng5 Bg1 Qfb3 Bf5 e6 Be5 Nc4 Rd7 e7 Rb6 Ne6 Ra6 Nb6 Ra4 Qdb4 Bc3 Qd4 Bh2 Be5 Nd6 e8Q Re7 Qd7 Nde8 Bd6 Be5 Qc6+ Kg3 Qf3+ Kh2 Qff4+ Kg2 Qg3+
1N1QR1r1/ppNn3R/2pPr1RR/1rP1r1b1/b1B1bk1N/qn6/7K/2nQ4 b - - 0 1 illegal: No proof kernel
N1B1b1n1/1rB1n3/q1kPQ1pr/4n3/1r2Q1n1/1p2b1KB/1P4Rp/Q3QN1b b - - 0 1 illegal: No proof kernel
Q3K1b1/2RNbQ2/r3pRqP/pRp3b1/P3Q3/1b1n2Nk/n2n1R2/B1r2r2 b - - 0 1 legal: proof: e4 f5 g4 fxe4 b4 c5 bxc5 h5 c6 hxg4 c4 b6 c7 Ba6 c8R Rh3 c5 Ra3 c6 Rf3 c7 Rh3 Bb5 Rh8 Bc6 dxc6 f4 Kf7 Kf2 Kg6 Ke3 Kf5 a4 g5 d4 e6 h4 b5 h5 g3 d5 c5 d6 b4 h6 b3 d7 b2 Qe1 Kg4 f5 g2 f6 Be7 f7 Nc6 f8Q Nf6 Na3 b1B Nc2 Nb4 Rh2 Na2 Rh5 Qe8 d8R Bc4 Qf7 a5 Ne2 g1R Rd2 Ra6 Ncd4 Rf8 Ng3 Bb3 Bb2 B1c2 Qb1 Rc1 Nc6 Bd3 Nb8 Bdc2 Qg7 Qg6 Nd7 Bd3 Rhh2 Bdc2 Rhf2 Kh3 Rd4 g4 Kf4 e3 Ke5 e2 Qf7 e1N Rdf4 Ne4 Rf6 Nd2 Bd4 Bf5 Qd3 Be4 Rb1 Bf5 Ba1 Be4 Nf5+ g3 Qd4 g2 Ng3 Bd3 Qe4 g1B Rb2 Bbc2 Rb5 Bb3 Re8 Bb1 c8Q B1c2 Qca8 Bd3 R2f5 Be3 Rc8 Bg5 Rf2 Qg8 Qec6 Bh7 Qe4 Qg6 Rc7 Bg8 Nb6 Bd8 Kd6 Be7+ Kd7 Nd3 Nc4 Rb8 Ne5 Rbb6 Ke8 Rd6 Nc6 Rd5 Nb8 Rf5 Nd7 Rf3 Rg2 Rff1 Rgf2
Bq1B4/2p1Qr2/2bBk1nR/K1n2pbb/pr6/r1bNP2R/PR3B2/5n1Q b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 Na3 e5 Nc2 Qf6 Ne3 Qd8 dxe5 gxf4 g5 Ke7 Ng4 hxg4 Qd6+ Ke8 Qd4 Ke7 Qd1 Ke8 Kd2 Ke7 Kc3 a5 b4 d5 h4 f5 g6 a4 e6 f3 b5 f2 Kb4 c3 h5 c2 b6 g3 b7 g2 g7 d4 h6 d3 h7 d2 Nf3 g1N Ne1 Na6+ Ka5 Bd7 b8B Nf3 Nd3 Nh2 Ba7 Bc6 Ba3+ Nc5 Rb1 c1B Rb2 Rb8 Bg2 Nf1 Rh6 Rb4 Qe1 Kd6 e7+ Kd7 e8R d1B Bf3 Bg5 Re3 Ne7 g8Q Bg7 Qf8 Bc3 Bd5 Rg8 h8B Ng6 Bf6 Rg7 Reh3 Qb8 Bd8 Rf7 Bh1 Ke6 Bg2 Nh2 Qh1 f1R Be4 Rf3 Bb6 Be8 Ba8 Bc6 Ba7 Nf1 Bb6 Nd7 Bg1 Nc5 Bf2 Rb3+ Bb4 Rf4 e3 Bh5 Be7 Ra3 Bd6 Bd2 Bc3 Rb4 Bf6 Be1 Bd8 Bc3 Qe7+
5b2/1nQ1RPR1/r2n2Qk/3pQpp1/bb3R2/2Bn2rn/K1R2P1q/1N1r1B2 b - - 0 1 illegal: No possible last move, all moves rejected
n1QBKR1Q/p1R1pn2/kp6/r2b3n/2bRNr1b/1P2B3/P3bRr1/q4Q2 b - - 0 2 legal: proof: e4 f5 exf5 c5 f4 g6 d4 cxd4 f6 Kf7 Na3 Ke6 f5+ Kd5 f7 Kc5 Nb1 Kc6 g4 Qe8 f6 Qd8 Bd3 Qc7 Bf5 Qd8 Nc3 gxf5 Ne4 h6 g5 h5 Nf2 Kc5 Ng4 hxg4 Kf1 Kb5 Ke1 Kc6 Ke2 Kb5 Kd3 d5 c4+ Ka6 h4 f4 g6 g3 g7 f3 b3 g2 c5 f2 h5 f1N h6 b6 h7 Be6 c6 Ng3 c7 Nh6 c8R Nh5 g8Q Bg7 f8B Nf7 Ne2 g1R Rh3 Rg2 Qg1 Qd6 Rh1 Qe5 Ng3 Bh6 Ne4 Bg5 Bf4 Bh4 Qg4 Rg8 h8Q Rg5 Rf1 Rf5 Ng5 Qe1 Rc2 Qa1 Rff2 Re5 Qf1 Rf5 Kd2+ d3 Ke3 d4+ Ke4 Ra5 Bh6 Bc4 Bc7 d2 Bd8 d1B Rcd2 d3 Qc8+ Kb5 Kf5 Na6 Kg6 Bf3 Rd1 d2 Rh3 Bb7 Rc3 Nc7 Rcc1 Ka6 Rc2 Nd6 f7 Rb8 f8R Na8 Rc3 Nf7 Rcc1 Bg3 Ne4 Bh4+ Qg4 Bd5 Be3 Bb5 Rc7 Bbc4 Rc1 d1B Rd7 Be6 Rd4 Bde2 Rc2 Rc8 Rc1 Rcc5 Rc2 Rf5 Rc1 Bcd5 Rc7 Ng5 Qh3 Rf4 Qf5 Bdc4 Qg4 Bed5 Qf5 Ne6+ Kf7 Ng5+ Ke8 Nf7 Qc8+
1n6/3N1Q1r/r1q1rb2/pbn1RR2/1pRP1QbQ/3R4/P2kp1N1/K2B2nb b - - 0 1 legal: proof: f4 c5 g4 g5 b4 d5 bxc5 h6 e4 dxe4 Bb2 Qd6 Bf6 gxf4 g5 Qd3 g6 Qd8 Bg5 hxg5 c4 Kd7 h4 Kc6 d4 b5 Kd2 a5 Kc1 e5 Kb2 f5 h5 e3 h6 g4 h7 g3 g7 f3 Qc1 f4 Rh2 e2 Rh5 e1R Bg2 e4 Nc3 e3 Rf5 b4 Nh3 Be7 Na4 Qd5 Nb6 f2 Nd7 f1B Bf3 g2 Bd1 f3 Nf4 g1N Ng2 Nf6 g8Q f2 Qf7 Ne4 Rb1 Bh4 Ka1 Bf6 Rb3 Ra6 Ra3 Bd3 Rc3 f1B Rb3 e2 Qf4 Re8 h8Q Re6 Qhh4 Qd6 Ne3 Bh3 Ng2 Bg4 Ra3 Bb7 Rb3 Bc2 Re3 Ba4 Re5 Bb5 Rf5 Kc7 c6 Nc5 Ree5 Rf1 Re3 Rf3 Rfe5 Rh3 Rf5 Kc8 c7 Qc6 Ree5 Ba8 Re3 Kb7 c8R Rh1 Rfe5 Rh2 Rg8 Kc7 Rgg5 Kd6 Rgf5 Qb6 Ne1 Bh1 Ng2 Qc6 Qhg5 Rh7 Qh4 Nb7 c5+ Kc7 Rf3 Qb6 c6 Kd6 c7 Kc6 c8R+ Kd6 Rcc3 Nc5 Re4+ Kc6 Ne5+ Kd5 Rfe3 Qc6 Nd7+ Be5 Rb3 Kc4 Rb2 Bf6 Ree5 Nd3 Rb1 Kc3 Rc1+ Kd2 Rc4 Nc5 Rd3+
1nqr3q/3bNr2/Pkq1Qp1B/b2B2NB/Q3R1pK/4p1P1/qB6/qnN5 b - - 0 1 illegal: No proof kernel
1n1R1NKB/k4P2/2p2bp1/1Q1b1R1N/N1N3Rp/rrqr3q/1r3n1P/2rQ4 b - - 0 1 legal: proof: d4 b5 c4 f5 g4 fxg4 a4 d5 axb5 e6 Bg2 dxc4 d5 Bd7 d6 Bc8 Bd5 exd5 Kd2 Kd7 Ke3 a5 Kd4 h5 Ke5 h4 e4 c3 f4 g3 b4 d4 f5 g2 f6 c2 b6 Kc6 b5+ Kb7 f7 c6 d7 a4 Na3 d3 Bb2 c1R Ne2 g1R Nc3 g6 Nc4 a3 Na4 Ne7 Kf6 a2 e5 d2 e6 Rg2 Rg1 Nf5+ e7 Ng3 Rf1 Ra7 Rf5 Nh1 Rb1 Qc7 e8N a1Q d8R Be6 Ng7 Qd7 Nh5 Be7+ Kg7 Nf2 Bc3 Qa3 Rb4 Bd5 Bb2 Rf8 Kh7 Rg3 Bh8 Rb3 Kg7 Ka8 Kh7 Ra5 b7+ Ka7 Kg7 Bf6+ Kh7 Na6 b8N Qe6 Nd7 Nb8 Qf3 Re8 Nf8 d1R Kg8 Rdd3 Qg4 Qe3 Qd1 Qh3 b6+ Kb7 Nc3 Re2 Na4 Ka6 b7 Ka7 Ncb6 Qa1 Rg4 Qc3 Nc4 Reb2 Nc5 Raa3 Na4 Nd7 b8Q+ Ka6 Qb5+ Ka7 Qc2 Nb8 Qd1
R5rN/2p1q1br/pn2br1r/1n4p1/1rQ1Pk2/4R1PQ/5q1N/K1N2BNQ b - - 0 1 illegal: No possible last move, all moves rejected
br2bn1N/4QRpq/1p2P2q/N3p2B/1Rnbb1K1/R6r/2Q1P2k/2N2Nb1 b - - 0 1 illegal: No proof kernel
1b2Bb1N/1N1p2bq/p1rp1N2/R5KQ/P4nQ1/b1nP2r1/1Q3Q1R/2b2q1k b - - 0 2 illegal: No possible last move, all moves rejected
N2r4/P2R4/7r/QpqNbnp1/1Qk1p1B1/nnn4b/1P5N/BnQ1KNq1 b - - 0 1 illegal: Other
N4N1B/Q4b2/R2r1p1P/1n1q3p/n1b2Q1P/2QpqBK1/2Nbq1N1/2qk2r1 b - - 0 1 illegal: No proof kernel
3bb1NQ/1r2n1PN/rb1Q3K/3n1k1N/1N2p1b1/3rp1Bp/1q1R2qP/B6B b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 f5 d4 cxd4 e4 g6 f4 fxe4 f5 g5 Ra3 Bg7 Rf3 Bf8 Rf4 gxf4 Ke2 Kf7 g4 Kf6 c4 d5 b6 a5 c5 e5 c6 h5 b5 e3 Kf3 h4 b7 h3 b6 d3 c7 d4 Nd2 a4 Bb2 a3 Be2 a2 Ba1 Nd7 b8B Rh7 b7 Bc5 Ke4 Qe8 Bf3 Bb6 Ne2 Ra6 Ng3 Ne7 Nh5+ Kg5 f6 Qh8 Bg2 f3 f7 f2 f8N f1Q Rg1 Qhf6 Bh1 Qg7 Nb1 d2 Rg2 d3 Nc3 Qg1 Nd5 Nf6+ Kf3 Bd7 c8N Be8 Nb4 Nfd5 Bc7 Qh8 b8Q e4+ Kg3 Rf7 Nh7+ Kg6 Kh4 Qb2 g5 Kf5 Re2 Qg2 g6 Rg7 Bg3 Bd8 Qb1 d1B Rd2 Bg4 Qd1 Rf7 g7 Bb6 Rc2 d2 Qd6 Bd8 Qe2 d1R Rd2 Rc1 Qb5 Rc3 Qbb8 Rb3 Nb6 Rd3 Nd7 Nc8+ Ndf6 Rb7 Qa8 Nce7 Ng8 Qa3 Bf6 a1B Qab8 Be5 Qa8 Bf4 Ba1 Qb2 Ngf6 Bg6 Qc6 Bfc7 Qd6 Bb6 Qab8 Bdc7 Qh8 Bf7 Ng8 Be8 Qc5 Ke6 Kg5 Bd8 Kh6 Kf5 Qd6
nr1bqrkB/2R1P1p1/2p1K1P1/3n4/2Qqp3/3Q1R1B/Q1b3B1/n1N2rrB b - - 0 1 illegal: No proof kernel
2qN2Br/1NPN2p1/R1n1R1P1/b2KNrbR/pk5n/2QQ4/1bp2q2/3b2q1 b - - 0 1 illegal: No possible last move, all moves rejected
rrb3N1/5pQk/nB1K1P2/n2QN1pn/3bR1B1/n1PB1Q1p/q4q2/6bB b - - 0 1 illegal: No proof kernel
qN4BQ/Bb3p2/1n1bPP2/k3Bbp1/1nNK4/3p1R1Q/1N3B2/bn2r1qr b - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a3 h5 Ra2 hxg4 a4 e5 Ra3 e4 Rd3 exd3 axb5 Rh5 Ba3 Rh3 Bc1 Rh8 Kd2 g5 c4 a5 h4 d5 f4 Kd7 e4 Kc7 b6+ Kb7 b5 a4 e5 g3 c5 a3 f5 a2 h5 a1Q e6 g2 h6 Qa7 h7 Ne7 Nf3 g1B Ne1 Bg7 Qb3 Bf8 Na3 Na6 Nc4 Nb4 Rh3 Bh2 Bb2 Bd6 Rf3 Bg7 Be2 Qa1 Bd1 Qb1 Bc2 Ra1 Bc3 Qc7 Bb2 Qb8 Ba3 Qa8 c6+ Kb8 b7 Ka7 b8N Bb7 c7 Nc8 Qc3 Nb6 c8Q Bf6 Qf8 Bfe5 Qh6 Bg7 Qh3 Bge5 Ng2 Qg1 Nge3 Re1 Nd1 Bg7 Kc1 d2+ Kb2 d3 Bb1 Rf8 h8B d4 Kb3 Bge5 Ndb2 d1B+ Bc2 d2 Bf6 Nc6 Bc5 Nb4 Bh8 Be2 Be4 d3 Bf2 Bd4 Be5 d1N f6 Rc8 Bh7 Rh8 Bg8 Rh4 Qc1 Nc3 Qf4 Nb1 Qfh2 Rg4 Qh8 Rh4 Qh3 Rh5 Nd1 Ba1 Ndb2 Na3 Kc3 Nb1+ Kd4 Rh7 Rf5 Bg4 Rf3 Bf5 Nd7 N6d5 b6+ Ka6 Nb8+ Kb5 Qg2 Rh1 Qgh3 Bc6 b7 Nb6 Nd7 Bce4 b8B Bb7 Ba7 Ka6 Nb8+ Kb5 Na3+ Ka5 Nc4+
8/4R2r/4r1pb/1krq1RN1/1qb1pQP1/n2rP2n/1QpQ2QN/1b2NB1K b - - 1 2 legal: proof: c4 f5 a4 d5 g4 dxc4 b3 b5 axb5 f4 Bb2 Qd6 Bf6 Qd4 Bh4 Qd8 Bg3 fxg3 Qc1 gxh2 Qc2 Qd3 Qd1 Qd8 d4 Kd7 f4 c5 Kf2 e5 Kg2 h5 d5 a5 b4 a4 f5 a3 f6 g6 f7 a2 b6 h4 b5 c3 b7 c4 b6 h3+ Kg3 c2 e3 c1R d6 Kc6 d7 c3 Nd2 Rh7 Bg2+ Kb5 Kf2 Ne7 Be4 Ra3 Nc4 Nbc6 b8Q Na7 b7 Bh6 f8Q Qa5 d8N Qb4 Qa8 Nd5 Qd2 Nf4 Nb2 Bf5 Bg2 Bb1 Nd3 Ra6 Kg3 Re6 Nf3 Rd1 Rg1 h1B Bf1 h2 Nf7 Nh3 N7g5 Bg2 Qf5 h1Q Nh2 Bd5 Qf4 Bc4 Ne1 Qd5 Rg2 Rc1 Rf2 e4 Kg2 Rc2 Kh1 Rc1 Qd8 Rd1 Qb2 Rd3 b8Q+ Ka4 Qg8 Nb5 Qgd8 Na3 Qbd6 Kb5 Qf3 Qc6 Qdf4 Qd5 Qdd6 Bc2 Rd1 a1R Qg2 Bb1 Rdd2 c2 Rf3 Rc3 Rd4 Rd3 Qd8 Qc5 Rd7 Qd5 Re7 Ra2 Qc1 Rb2 Qh8 Rbb3 Qcd2 Rbc3 Qg7 Bb3 Rf2 Rc5 Qb2 Bc4 Qfe5 Rf7 Rf5 Rh7 Qf4
B3n3/Pbp1bk1q/rp1n4/1qNqr3/3QQBR1/1R1p4/BK1P3q/4BnQ1 b - - 0 1 legal: proof: e4 g5 c4 f5 exf5 b6 h4 gxh4 b4 Bb7 b5 Bc8 c5 Bg7 Na3 Bf8 Nc4 bxc5 b6 Nh6 b7 Ng8 Nb6 axb6 Be2 c4 Bd3 Bh6 Bf1 Bf8 g4 e5 f4 h5 a4 d5 f6 h3 a5 h4 f5 e4 a6 c3 a7 c2 g5 d4 f7+ Ke7 g6 e3 g7 h2 Bb2 c1N Ra3 d3 Nh3 e2 Bg2 Nd7 b8Q Ne5 Qb7 Nc4 Bd4 Rh5 Rb3 Nf6 g8B Ne8 Ng5 h3 Ne6 Qd5 Bf2 Ncd6 Rg1 h1Q Nc5 h2 Qc6 Bb7 f6+ Kd8 Bh4 Be7 f8B Re5 f7 Re4 Rc3 Ra4 Bh6 Ra6 f8Q Rb8 Bf3 Qg2 Qf5 h1Q Qe4 Qgh2 Bf4 Ra8 Bhg3 Qh7 Qca4 Q1h2 Bg2 Rc8 Qad4 Ra8 Kf2 e1Q+ Kf3 Qf1+ Ke3 Ne2 Be1 Ng3 Rb3 Rb8 Bh1 Qfh3 Rg2 Qd7 Qg4 Qb5 Qgg7 Nh5 Rg4 Ng3 Rg5 Bf6 Rb2 Qdc4 Qf5 Bc8 Ba8 Bb7 Qde5 Qe6 Kd4 Nf1 Qgg6 Ke7 Kc3 Ng7 Qd4 Re8 Qe4 Kf8 Rg3 Re7 Rb4 Nge8 Kb2 Qec4 Rg1 Re5 Qgg2 Be7 Qgf2 Qd5 Rg4 Qdc6 Ba2 Qd5 Qg1 Kf7 Rb3
1nnQ4/2pr1RB1/2PRqQ2/1Qqr3R/KN3p2/1nb2P2/1R1p1k1N/b2r3r b - - 1 2 legal: proof: d4 e5 g4 exd4 b4 f5 b5 f4 b6 axb6 Bg2 b5 Bf1 b4 Na3 h5 Bh3 b6 Nb1 Bb7 Bf1 Be4 Bh3 Bf5 gxf5 Rh6 Bg4 hxg4 Qd3 Rh4 Qd1 Rh8 Kd2 Ke7 c4 Kf6 Kc2 Kg5 Kb3 Kh4 a4 g5 e4 d5 h3 b5 e5 g3 f3 g2 a5 Kg3 h4 d3 c5 g4 f6 d2 e6 d4 a6 d3 h5 Qe7 a7 Bg7 c6 Rh7 f7 Bc3 f8R Kf2 h6 g3 Ne2 g1Q Na3 g2 Rb1 Rg7 Qc2 d1R h7 Qe1 h8Q g1B Qd2 Qc5 Nc2 Rd7 Qf6 Ne7 Rh5 Nc8 e7 Ba1 Ng3+ Qe2 Qdc3 Qe6+ Qc4 Bc3 Rb2 Rd5 Ka2 b3+ Kb1 b4 e8Q Rd7 Qed8 Rd5 Nf1 Rd7 Ra2 b2 Nh2 Rd5 Qb5 Rd7 Ra4 Rd5 Ka2 b1N Ra5 Nd2 Rf7 Nb3 Bb2 d2 Ra3 Kg3 Ra6 Bgd4 Rb6 Kf2 Ba3 Ba1 Bb2 Bc3 Rb7 Na6 Rb6 Rb8 a8R Rd7 Rd5 Rb7 Rd6 Nb8 Ra5 Ra7 Qa4 Ra6 Rab5 Ra5 Rb7 Qce3 Rh5 Rd5 Qb5 Qc5 Rb6 Nc1+ Kb1 b3 Nb4 Bd4 Bc3 b2 Kc2 b1R Rb7 Qa7 Bb2 Bc3 Rb6 Rh1 Rb7 Qc5 Rb6 Na2 Kb3 Rbd1 Ka4 Nc1 Qfe7 Bh8 Bg7 Nb3 Qf6 Qe5 Qfe7 Qce3 Qd3 Na6 Na2 Qe6 Be5 Nd4 Rb2 Nb8 Nb4 Nb3 Qb5 Qc5 Qg5 Bg7 Qg6 Bh6 Bh8 Bg7 Qf5 Be5 Bg7 Bc3 Qff6
K1BN1QQ1/p3p3/2rNb1bn/B1nQ4/2qR2Q1/p2n1Pr1/PB4n1/1qk1b3 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 g5 h4 gxh4 Na3 f5 Rb1 fxe4 b4 Nh6 Rb3 Ng8 Rf3 Bd7 Rf6 Bh3 Ra6 Bc8 Ra4 bxa4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 Kf4 g4 h5 d4+ e3 d6 h3 g5 h2 d5 h4 g6 h3 g7 Nh6 g8Q Bg7 b5 Be6 d7 Bc3 d6 Be1 b6 Qc8 d8B Na6+ Kc6 Nc5 Qg7 Rg8 Nc4 a3 Qh8 Rg3 Bb2 e2 d7 Ke4 Qa4 Kd3 Nd6 Kd2 Qg8 Qa6 Bg2 Rc8 Qag4 Qc4 Nf3+ Kc2 Rg1 h1Q b7 h2 b8Q Kd1 Ne5 Kd2 Ba1 Kc1 Bd5 Qhe4 Nef7 h1B Qb5 Qb1 Bb2+ Kc2 Rf1 Be4 f3 Bg6 Be4+ Kd1 Bf5 Kd2 Rh1 Kd1 Rh4 Kd2 Bf6 Kc1 Ba1 Na6+ Kb7 c5 Ba5 Rc6 d8Q Qa4 Rh3 c4 Qdf8 c3 Ka8 c2 Qe5 Qc4 Nd8 Nc5 Qed4 Bc3 Qd5 e1N Rh4 Ng2 Qde4 Be1 Bb2+ Kd1 Qe5 c1N Qed4+ N1d3 Qd5 Bef7 Bc8 Be6 Qgh5 Kc2 Rd4 Kd1 Qg4 Kc2 Bbc3 Kc1 Bb2+
rN6/1qqn1bN1/BrpQ2p1/2R2nbp/q1BP1Q2/2B4P/1k1b2Q1/2bQ3K b - - 0 1 legal: proof: b4 d5 a4 b5 g4 f5 d4 fxg4 c3 e5 Ra3 e4 c4 dxc4 Rd3 exd3 axb5 Qh4 Bh3 Qe7 Bf1 Qd8 e4 Kf7 f4 Ke6 Kf2 h5 Kg2 a5 f5+ Kf6 b6 g6 h3 c6 b5 a4 e5+ Kf7 f6 Ke6 f7 Kd5 e6 d2 e7 c3 e8B c2 b7 a3 b6 g3 Nf3 a2 Na3 a1Q Ba6 Be6 Ne5 Be7 f8Q Nd7 b8Q Qb2 b7 Bg5 Bf7 Ne7 Nac4 Nf5 Nd6 Qc7 Ne8 Qbb6 Bg8 Bf7 Bb2 c1B Bc3 Qb5 Kg1 g2 Ng7 Qb1 Kh2 g1B+ Kg2 Ke4 Qd6 B1e3 Re1 Qb5 Kh1 Rh7 Qd8 Qb4 b8Q Qbb7 Rf1 Bef4 Qd5+ Ke3 Qg2 Rh8 Nc4+ Kd3 Re1 Rh7 Re5 Rh8 Rc5 Rh7 Qdg1 Kc2 Nb6 Kb3 Qf6 d1Q Qd6 Bfd2 Qbf8 Qc2 Qd1 Ka3 Qf4 Qa4 Q8d6 Rh8 Bh7 Rhb8 Bg8 Be8 Bgc4 Bf7 Nd5 Qb2 Nb4 Rb6 Bc8 Qb1 Na6 Qbb3 Nb8 Qbb5 Bb4+ Kb2 Ba5 Qa6 Bb7 Qa7 Bba6 Qab7 Bc3+
B6b/1Q1qr1pN/p2r2nR/2Pq2P1/2RQ1B2/b2K1bp1/qBn3q1/1B3kR1 b - - 0 1 illegal: Other
2N5/2Rr1kQ1/2b2B2/2qn2b1/3pp1pB/qQrnB3/P1B1PN1K/qq1r2N1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 cxd4 Nd2 f5 gxf5 axb4 Rb1 h5 Rb3 Nc6 Rg3 Nb8 Rg4 hxg4 f4 e5 Kf2 g5 Kg2 b5 c4 d5 h4 d3 c5 g3 h5 e4 f6 b3 f5 b2 h6 b1Q c6 b4 h7 b3 c7 b2 Qe1 Nd7 Nh3 Nc5 Nf2 Be7 Nf3 d2 Ng1 d1R Be3 Bd7 c8N Ra3 Qc3 Bc6 Qb3 Qa1 f7+ Kf8 Kh3 g2 Kh2 Kg7 f8B+ Kf7 f6 b1Q Bg7 Nd3 Bh6 Qf8 Bg7 Kg6 f7 Nf6 Bh6 Rg8 h8B d4 B8g7 Nd5 Bf6 Ra7 Bhg7 Rd7 Bh6 Bd8 Bhg7 Qb4 f8Q Qa3 Be7 Qc3 Bgf6 Qcc5 Qh6+ Kf7 Qg7+ Ke8 Kg3 Rf8 Rh7 Rf7 Kh2 Rc7 Bd6 Rfd7 Bg3 Be7 Bh4 Bd8 Nf3 g1Q+ Kh3 Qa1 Be7 Qcb4 Rh6 Bb5 Rf6 Rd2 Qc3 Nb6 Rc6 Ba4 Bg2 Qgb1 Ng1 Rd1 Kh2 Qc4 Bh3 Bb5 Bf5 g4 Be6 Qcb4 Bc5 Bg5 Bb3 Nd5 Bc2 Qba5 Qb3 Qb6 Qh8+ Kf7 Be7 Ba4 Bf6 Qa7 Re6 Rc3 Rc6 Q7c5 Rc7 Bc6 Qg7+
r1b2KR1/p6N/2q2B2/1Q1Rb2N/4pPn1/1p1Q1Q1n/Qq1bP1q1/2b2Nrk b - - 0 1 illegal: No proof kernel
nBn1QB1r/1Qp3q1/4K1Bp/2P1R3/1q1Nr1kn/pP3Rb1/2b2B2/q3q2Q b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 e5 d4 Nc3 f6 Nd5 fxe5 Ne3 dxe3 Qe2 e4 Qh5+ Kd7 Qd1 Ke8 Ke2 Kd7 c4 Ke6 d4 Kf5 g4+ Kg5 b6 a5 c5 e5 d5 h3 b3 h2 d6 a4 b7 h6 d7 Qf6 d8Q a3 Q8d5 Nd7 b8B Nb6 Qb7 Qg7 f4+ Kh4 f5 Ne7 f6 Ra4 g5 Kg4 f7 Bf5 g6 Nec8 Qe1 Na8 Nf3 Bd6 f8B Rd4 Bg2 Rc4 Rf1 h1Q Nd4 Rb4 Kd1 e2+ Kc2 e3+ Kc3 e4 Rf3 Bg3 Bb2 Qh4 Qh1 e1N Bf1 Qhf6 Bd3 Ng2 Re1 e2 Bc1 Nh4 Be3 Ra4 Bf2 e3 Bb1 Qb6 Be4 Qb4+ Kd3 Qe7 g7 Qg5 g8Q Qg7 Qf7 Bh7 Qe8 Bf5 Rc1 e1Q Rc2 Qa1 Re2 Bg6 Re1 Bh7 Bg6 e2 Ke4 Na7 Kd5 Nc8 Bb1 Be4+ Ke6 Bc2 Rf1 e1Q+ Re3 Bd1 Bg6 Bc2 Re5 Qb5 Nf5 Re4 Nd4 Qba5 Bg1 Qad2 Rf3 Qb4 Bf2
2bQ1R2/1Bp1B1bq/2N1nP2/2P2nb1/pK1Bq2k/nb4p1/2rQ2r1/N1NN4 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 f6 h4 gxh4 g5 f5 Ra3 Kd7 Rg3 Ke8 Rg4 fxg4 c4 Kf7 f4 Kg6 d4 Kh5 Kd2 e5 Kc3 a5 d5 h3 f5 a4 f6 h2 b6 e3 g6 e4 d6 e2 b5 e1N b7 e3 d7 e2 g7 Kh4 b6 h5 c5 Qe7 d8B Nh6 g8Q Qe4 Qe6 Bg7 Qed7 Nc2 Be3 e1B+ Q1d2 Nf5 Be7 Na3 Bg2 Nc6 b8N Ncd4 b7 Ne6 Nc6 g3 Qe8 Rb8 Ne2 Bf2 Rd1 h1B Bd4 Be3 Kb4 Bg5 Nbc3 Rh7 Bf3 Bg2 Rb1 Bf1 Nc1 Bc4 Nd1 Bb3 Na5 Rh8 Qb5 Rd8 Bh1 Rd6 Qd7 Rb6+ Kc3 Rb4 Qd5 Rc4+ Kb2 Ba2 Bf2 Qd4+ Qc3 Kh3 Qe5 h4 Qd5 Bd7 Nab3 Kg4 Bg1 h3 Na1 h2 Qd6 Rh8 b8N Rh3 Bd5 Qe4 Bd4 h1Q Qd2 Rh2 Ba8 Rg2 Nc6 Qh7 Qd5 Rb4+ Kc3 Rb2 Qd6 Bc4 Qd5 Ra2 Rb8 Kh4 Kb4 Rc2 Rf8 Bc8 Bb7 Bb3 Qd8
R1b1nQ2/N3K1b1/rp2p1Q1/2n2qBq/qP2NRRQ/2b4Q/p3kP2/2b2r2 b - - 0 1 illegal: No proof kernel
1r3n1q/2P1Qq2/rQ5n/BpbbNp2/3pB2R/1P2kNNn/1n1Bb3/2B1K3 b - - 0 1 illegal: No possible last move, all moves rejected
3BK3/BPb1pR1b/1Qrrn3/4rQ1Q/1q1rPp2/q1p4b/R4kB1/1NBn4 b - - 0 1 legal: proof: f4 b5 g4 g5 c4 d5 a4 dxc4 axb5 h6 Nc3 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 Kd7 h4 Kd6 e4 Kc5 b4+ Kd4 b6 f5 b7 a5 b5 c5 d3 a4 g6 a3 b6 c3 g7 a2 h5 g3+ Kf3 g2 h6 c2 h7 c4 Ba3 c1R Qe1 Ra6 Qb4 Nc6 b8B Nf6 g8Q Bh6 b7 Qd6 Be2 Ng4 Qf8 Nd8 Bf1 Ne6 Qd8 Ne3 Qda5 Rd8 h8Q+ Bg7 Qh5 Be5 Qb3 Nd1 Ba7+ Qb6 Qb1 Bc7 Bb2+ Rc3 Bc1 Qc5 Qb2 Rad6 Qbb6 Bd7 Rh3 Be8 Qab5 Bg6 Rh4 Bh7 Ne2+ Ke5 Rg4 g1R Rg7 Rg5 Bg2 Rc2 Qd7 Qb4 Nc3 Rd4 Qc8 R8d6 Nb1 Rc3 Rf7 Rc2 Qd7 Rc3 Ke2 f3+ Kd2 Kf4 Qdb5 R4d5 d4 Kg3 Q5c5 Re5 d5 f2 Qcb5 f1B Q5c5 Rd8 d6 f4 d7 Rg6 Qd5 Rd3+ Kc2 Rc8 d8B c3 Qf5 Rd4 Qdb5 Qc5 Kb3 Kf2 Qh5 Rdd5 Ka4 Rd4+ Ka5 Qb4+ Ka6 Be2 Qf5 Bg4 Q5a5 Bh3 Qd5 Qa3+ Kb5 Qb4+ Kc6 Rf6 Kd7 Rh6 Ke8 Rg6 Nd2 Rf6 Rb1 a1Q Rb2 Qaa3 Qda5 Bd6 Rc2 Rc6 Ra2 Bc7 Qab5 Nf8 Q5a5 Rfd6 Qab5 Ne6 Qe2+ Kg1 Qeh5 Kf2 Nb1+
Q1b3Bn/4r2r/1rpprN1B/4QB2/Pbn3q1/2pP1q1k/b2R1Q1R/Q1K5 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 b5 c4 gxh4 Na3 f5 exf5 bxc4 b5 Nh6 Nc2 Ng8 Nb4 axb4 a4 Kf7 g4 Kf6 f4 h5 d3 e5 Kd2 h3 b6 h2 b7 e4 Bh3 c3+ Kc2 h4 Bf1 h3 Ne2 e3 Ba3 c6 Ng3 b3+ Kc1 e2 Bb2 e1R Ra2 Ra6 Rg1 h1R Rg2 h2 Rd2 Qb6 Bh3 Qd4 Ba3 Bb4 g5+ Kf7 f6 Kg6 f7 d6 f8Q Ne7 Ne4 Rh6 Qh8 Rb6 Nf6 Nd7 b8Q Ne5 Qa8 Nc4 Rg2 Rh7 Rad2 Re6 Bg4 Rhe1 f5+ Kf7 Bb2 h1Q Qe8+ Kg7 g6 Kh6 g7 Kg5 g8B Kh4 Bh3 Ng6 Bg4 R6e2 Qe5 Nh8 Bh3 Qg4 Ba3 Ba5 Bc5 Qf1 Be3 Bb4 Bh6 b2+ Kc2 Qg6 Qa1 Qf3 Bg4 Re4 Bh3 R1e2 Bg4 b1B+ Kc1 Qg7 Qe7 Re5 Nd5+ Qg5 f6 Qe4 f7 Ba2 f8Q Re3 Qf1 Qf3 Nf6 R5e4 Bd7 Qgg4 Qf2+ Kh3 Bf5 Re2 Qe6 R2e3 Qd5 Ree7 Qd4 R3e6 Qe4 Na5 Qe5 Nc4 Rh2#
n2N1rN1/Qp4k1/p1R1q3/qr4b1/BP1rnRQ1/K7/P1b1Np2/Rb3R1b b - - 0 2 legal: proof: h4 d5 f4 c5 c4 g5 cxd5 gxh4 b3 e5 Qc2 exf4 Ba3 c4 Qd1 c3 Bb2 cxb2 g4 f5 e4 Kf7 d4 h5 Kd2 f3 Kc2 a6 b4 f4 Kb3 f2 d6 h3 d5 f3 g5 h4 e5 h2 e6+ Kg7 g6 h3 e7 Be6 e8R Rh5 d7 Nf6 Ne2 Qa5 d8N Nbd7 Qd4 Bf5 d6 Be7 Nbc3 b1B Rf8 Nb6 d7 Bfc2+ Kb2 Re5 Nd5 Ne4 Nf6 Rb5 Ng8+ Bf6 Rg1 h1R Bg2 h2 Rf1 Rg1 Bh3 h1B Bg4 Be5 Rf4 Bf6 Be6 Rg2 Bb3 Rg4 Ba4 Rb8 Ka3 Na8 Qa7 Bg5 Nc6 Re8 d8R Rf8 Rd6 Rh4 Nd8 Rg4 Re1 f1Q Rc6 Qh3 Rf1 f2+ Ng3 Qh6 Ne2 Kh8 g7+ Kh7 Ne7 Qe6 g8Q+ Kh6 Qf7 Rh4 Qf5 Kg7 Ng8 Nc5 Rf3 Rd4 Qg4 Ne4 Rf4
2qqkBr1/2b1P2K/1p4N1/1Nb2R2/2b3QN/1Ppn1pNQ/b3Rr2/3q1nR1 b - - 0 1 illegal: No extended proof kernel
qnr2Q1b/2B2p2/1R5P/k1p5/4b1B1/prQ2P1n/2Qrb1Kb/B2Bq1NR b - - 0 1 legal: proof: d4 b5 c4 e5 g4 h5 a4 hxg4 Nd2 d6 Nb3 d5 axb5 dxc4 d5 Qd6 Nd4 exd4 Nh3 Qf6 Ng1 Qd8 h4 Kd7 b4 a5 e4 c5 e5 Kc7 h5 Kb6 e6 g5 h6 a4 e7 a3 e8B g3 f3 c3 d6 g4 d7 g2 Kf2 c2 Rb1 d3 Rh3 g3+ Ke3 d2 Be2 Bg7 Rh1 Bb7 Kf4 Nf6 Bb2 c1R Ba1 Nh7 Qc2 Be4 Bd1 Ng5 Kg4 Ra7 Kh4 Qc8 d8B+ Rc7 Bd7 Nh3 Rb2 Rb1 Bg4 Qb7 Rb3 Qa8 Qc3 Re8 Rb2 Bh8 Rb3 Ka7 b6+ Ka6 b7 Rc8 Bc7 Red8 Rb2 Kb5 Rb3 Ka4 b5 Rd5 b6 Rd6 Rb4+ Ka5 Qc2 Rb3 Qc3 Na6 b8Q Rdd8 Qb7 Nb8 Qc6 Rd7 Qg6 Rd5 Bc2 d1B Qf5 Be2 Bd1 Rd2 Qh7 Bb7 Qhc2 Bd5 Qg7 Be4 b7+ Ka6 Rb6+ Ka5 Qf8 Bf1 Ne2 g1B Qg7 Bh2 Ng1 g2 Qf8 Nd7 b8Q Bc4 Qb7 Be2 Qd5 Nb8 Qdc4 Ng5 Nh3 g1Q Q4d3 Qe3 Ng1 Nh3 Qd4 Bd6 Qe5 Qc3 Kg3 Qe3 Kg2 Qc3 Qd4 Bh2 Qe3 Qe5 Qd4 Qe7 Qdd3 Qh4 Qdc4 Qe1 Q4c3+
1Bb1nq2/4p1R1/pQq2N2/Qq6/3N2Bn/rbk1PP1Q/Q3pK1b/1b2N1r1 b - - 0 1 legal: proof: b4 c5 h4 b5 d4 cxd4 a4 g5 axb5 gxh4 Ra3 f5 Rd3 f4 e3 f3 Rd2 Qc7 Re2 fxe2 Kd2 Qd8 Ke1 Kf7 g4 Ke6 c4 d5 c5 h5 b6 d3 g5 d4 b7 Kd5 c6 Kc4 g6 h3 c7 h2 g7 h4 b5 h3 b6 Nc6 b8Q Nf6 g8N Ne5 b7 Ne8 Nf3 Ng6 Ng1 Nh4 Nd2+ Kc3 Nb3 Bg7 Ba3 Be5 Nf6 Rg8 Nf3 Rg1 Bd6 Qd7 Nc5 Qb5 Qa4 Bf4 Ng5 Be5 f3 d2+ Kf2 d1B Nd3 Bc2 Qa2 Bb1 Ne1 d3 Ne6 d2 Nd4 d1B Bg2 Bb3 Bf1 Rg8 Rg1 h1Q Rg7 h2 Bh3 Qc6 Bg4 Qb5 Ng2 Qc1 Ne1 h1Q Qa4 Bh2 Bf4 a6 Qa7 Rb8 Qb6 Qc2 Qe6 Qe4 Qf7 Qec6 Bg3 Ra8 b8Q Ra7 Qb6 Rb7 Nd3 Qd1 Ne1 Qdd3 Qe6 Qg6 Bd6 Qf7 Bf4 Qf8 Qf7 Bcf5 c8Q Rd7 Bb8 Rd8 Qcc7 Bc8 Qg3 Rd6 Qh3 Rd5 Ne6 Rd2 Nd4 Ra2 Qd5 Ra3 Qf7 B3c2 Qa2 Bb3 Rh7 Rg5 Rg7 Rg6 Bh5 Rg3 Bg4 Rg1 Qaa5+
3Q2n1/2rPB1N1/1b1pq1Qq/R1Rb1Rq1/1r1R4/K3k2p/p2P2nn/3qN1N1 b - - 0 1 illegal: Other
KB2N3/B1p1n3/nP4Bq/p1nBk1Q1/b1R1nb1q/r1P5/pN1N4/2Q2rb1 b - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 h5 b4 hxg4 a4 bxa4 Bh3 f5 Ra3 f4 Rg3 fxg3 Bg2 Rh3 Bf1 Rh8 Kd2 Ke7 Kc3 Ke6 Kc4 a5 Kb5 g5 h4 d5 f4 a3 e4 d4 c3 a2 h5 g2 f5+ Kf7 e6+ Kf6 e5+ Ke7 h6 d3 h7 g3 Rh4 d2 Ne2 g1N Rc4 g2 Nf4 g4 Nd3 g3 Nb2 Na6 Kc6 Nh3 b5 g1B Bg2 Nf4 Bd5 Bd7+ Kb7 g2 Qe1 d1N Be3 Be8 Ba7 Nf2 Bb8 N4d3 Nd2 Ne4 Qc1 Bh6 f6+ Kf8 f7 Ke7 Qa1 Bf4 Qc1 Bd7 Rb4 Qf8 Rc4 Qh6 f8B+ Ke8 Nf3 Ne7 Nd2 Qh4 Bh6 Rf8 h8Q Kd8 Qg8 Be8 Ba7 Rc8 Bb8 Ndc5+ Ka8 Bd7 Qg4 Ke8 Rd4 Rf5 Bg5 Kf8 Rb4 Kg7 Rc4 Rf7 Qg3 Kg6 Qe3 Kf5 Bf6 Qh6 Bh4 Rg8 Bf2 Rg4 Qg3 Nb7 Bfa7 Nbc5 b6 Ba4 Nf1 Bge3 Nd2 g1Q Qg2 Qgh2 Qg3 Bg1 Qe3 Ng6 e7 Q2h4 e8B Ne7 e6 Ke5 Qg3 Rf6 Bg6 Bd7 Qf2 Bg3 Qe2 Ng8 e7 Rf1 e8N Ne7 Qg2 Nf6 Ra4 Rd4 Bc6 Bf4 Ra3 Ra4 Bd5 Nfe4 Rb3 Ra3 Rb4 Bb5 Rc4 Ba4 Qg5+
1nKQ4/1p2Pk2/N2rrQ2/2p3B1/2bQ2qr/NPb1p1qb/1RN3Rr/3Nn3 b - - 0 1 illegal: No proof kernel
B2qn2n/4k1Q1/1pqR2Bq/N1pPr2b/Rb1Q2p1/B6q/KP1r2Bn/4R3 b - - 0 1 illegal: No proof kernel
6K1/npk2B2/1R3b2/RbPQ2bB/N1pqR3/pb3R2/1Pqn1r2/Q1r1q1B1 b - - 0 1 illegal: No proof kernel
1r1Q2k1/Pp5p/N1rbB1rp/N1Q3bP/1N3bK1/1RN1q3/2bRnQ2/2rn4 b - - 0 1 illegal: No possible last move
8/p2Q3B/1P3pbr/4bPBN/K1b1Rnn1/1nb4k/1pN2qr1/N1BQ1Nn1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 dxe4 Ra3 g5 Rb3 gxh4 axb5 Na6 b6 Nb8 b5 Kd7 Rb2 Ke8 Rb4 cxb4 c4 Kd7 g4 Ke6 f4 h5 d4 e3 c5 h3 c6 b3 c7 f6 g5 Kf5 d5 e5 d6 e4 d7 e2 Kd2 Kg4 Kc3 b2 Kb3 e3 b7 h4 g6 h2 g7 h3 b6 Bd6 Bd2 Nc6 b8N Be5 Nf3 e1N Bd3 e2 Ka4 Rh6 Na6 Na5 Bh7 Nb3 Nd4 Nd3 Re1 h1B Nc5 h2 Bc1 Be4 Nc2 h1N Nd2 Bg6 f5 Ba6 c8Q Kh3 Nf1 Bc4 Qc7 Qf8 d8B Ng3 Qd7 Nf4 Bc7 Qd6 Bb8 Qd4 Bc7 Qf2 Bd6 Ne7 g8N Ned5 Ne7 Ne3 Nd5 Rg8 Bf8 Ng4 Bg7 Rh4 Bh6 Rg7 Bg5 Rh6 Na1 Rg8 Nde3 Rg7 Ne4 Rg8 Q1d5 Rg7 Nec2 Rg8 Rd1 e1B Rd4 Nge2 Neg3 Bc3 Re4 Ng1 Qd1 Rd8 Qb7 Rd3 Nh5 Rg3 Qf7 Rg2 Qfd7
QR1NKnN1/N3R1r1/r1r1pr2/kqpb2p1/1R2P3/7n/n1nP2B1/R3Q1b1 b - - 0 1 legal: proof: g4 f5 c4 d5 a4 dxc4 b3 h5 Ba3 b5 axb5 h4 Bd6 fxg4 Bg3 hxg3 e4 Kd7 Ke2 g5 Ke3 a5 Kd4 e6 Ke5 a4 h4 a3 f4 a2 b4 g2 f5 g3 f6 c3 b6 Kc6 f7 c2 b5+ Kc5 h5 Kb4 h6 c1R b7 Ra6 h7 Nf6 b6 Qe8 Nh3 g1N Nc3 g2 Nf2 Ka5 Nb5 Rc6 Qe1 Bc5 f8Q Nd5 Na7 Nh3 Ng4 g1R Nf6 Nc3 Bg2 Rg8 h8N Rf1 Nf7 Rg7 Ng8 Rf6 Nd8 Qd7 Rf1 Bg1 Rf2 Qd3 Rf3 Qc4 Rd3 Qb4 Rd7 Qc4 Re7 Qe2 Rc1 a1N Qe8 Nc2 Ra1+ Na2 Qf8 Rc4 Qe8 c6 Kd6 Nd7 b8R Bb7 Kc7 Ba8 b7 Nf8 Kd6 c5+ Qc6 Rb4 Kc7 Rbb6 Qe8 Nh7 Kd7 Rc6 Qf8 Qb5 Ke8 Qa4 Rc8 Qb5 b8R Qd3 Rb4 Qb5 Qf7 Nf8 Rb8 Rfg6 Qf5 Rf6 Qd5 Rc8+ Qd7 Bd5 Qc6 Rc7 Rd7 Rc8 Qa8 Rcc6 Re7
1bk2B2/q1n1PNr1/1bQ3b1/1Rb1K2p/3pBBNQ/5pn1/2n2B1P/1r2N1n1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 f5 d4 cxd4 g4 e6 f4 fxg4 f5 e5 Ra3 Ke7 Rf3 Ke8 Rf4 exf4 Kf2 h5 c4 a5 e4 g5 e5 d5 f6 Kd7 b6 g3+ Kf3 g2 b5 a4 b7 a3 b6 d3 c5 d2 f7 a2 Qc2 a1B Nh3 g1B Bg2 d1N Nf2 Na6 b8B Rh7 b7 Qc7 Nd2 Ne3 Ba7 Rb8 Ng4 Nh6 e6+ Kd8 c6 Nhf5 Qa4 Nc2 Bf2 Bc5 f8B Ng3 Qb4 Qa5 e7+ Kc7 Qe4 Bf5 Qe6 Bg6 Qf6 Ra8 b8N Kc8 c7 Rg7 Nd7 Rb8 Nde5 Rb1 Nf7 Qb6 Qd4 Qa7 Qb4 Bc3 Qa4 Ba5 Qc6 d4 Qf6 Bab6 Qc6 Nf5 Ke4 Ng3+ Ke5 Bf5 Ngh6 g4 Nf3 Bh7 Ne1 Bg6 Be4 f3 Bfe3 Bf2 Qf6 Nf5 Qh4 g3 Ng4 g2 Bf4 g1N Bce3 Nh3 Rf1 Bg3 Rf2 Ng1 Rg2 Na1 Rb2 Nc2 Rb3 Bf2 Rb5 Ng3 Ng2 Be1 Bf2 Bd2 Ne1 Bc1 Bh6 Bf4+ Kd5 Kb7 Bg5 Ka8 c8Q+ Bb8 Qe6 Kb7 Bf4 Nc7+ Ke5+ Nd5+ Qd6 Kc8 B4e3 Nc7 Qc6 Nb4 Bg5 Nc2 Bf4
Q1Q1R3/bnb3BR/kp4q1/2Q2Nrp/2p4n/1P1P1rQb/KNb2n2/n2R4 b - - 0 1 illegal: No extended proof kernel
1n1r3N/1rRpBb1K/1pB2bR1/2B1Rr2/R1P3np/1n5k/rP2Q3/2Q1n2q b - - 0 1 illegal: No proof kernel
2Q2Nk1/n1BQpn1R/5RB1/1Q6/qp2np1K/3b4/1Pbb1Pr1/bQ2nqB1 b - - 0 1 legal: proof: e4 c5 h4 g5 d4 gxh4 a4 d5 Rh3 dxe4 d5 a5 Rh1 b5 Na3 b4 Nb5 Ra6 Nd4 cxd4 Be2 Rb6 Bf1 Rb5 axb5 Bh6 Nh3 Bg7 Ng1 Bf8 c4 h5 g4 f5 g5 Kf7 d6 h3 d7 h4 b6 e3 c5 a4 b7 e2 c6 d3 c7 a3 Nf3 h2 Ng1 a2 Bf4 h3 Qb1 Qe8 d8B Nc6 b8Q Ba6 c8Q Nh6 g6+ Kg8 g7 Na7 Nf3 Qa4 Bdc7 Nf7 Nh4 Bc4 Kd2 e1N Ke3 d2 Bd3 d1B Qb5 Bc2 Qcd7 Rh7 Be4 B4d3 Ng6 Rh5 Bfe5 Rg5 Bed6 Rg1 Bg3 Rg2 Kf4 Nh8 Kg5 Nf7+ Kh4 f4 Rg1 h1N Bh2 Ng3 Bf5 Ne4 Rh1 Bf1 Bg1 Bc4 Qbd1 B4d3 Rc1 a1B Rh2 Bb1 Rc6 Bbc2 Rf6 Rg5 Rg2 h2 Qb1 h1Q+ Rh2 Qg2 Bg4 Qf1 Bh5 Rg2 Rh1 Kh7 g8Q+ Kh6 Rb6 Bg7 Qgc8 Kh7 Nf8+ Kg8 Bg6 Bc3 Rf6 Bd2 Rh3 Bc4 Rc3 Be2 Rc5 Bc4 Rh5 B4d3 Rh7
R1K1b3/1P6/1bp1n3/1p2prRQ/1B2P3/1R3Qqb/QQp2nr1/1Nnr1B1k b - - 0 1 illegal: No proof kernel
r7/5qbq/B2B1b1p/1n5N/2Pkb1p1/rpNN1p1Q/1KQ1QP1R/5nrN b - - 0 1 illegal: No proof kernel
2q2rN1/K7/pRp2N2/k4qnN/R1p5/2PpP1Qn/2QNB2b/qR1b2rb b - - 0 1 illegal: No proof kernel
k2BR1RN/BQpQ3n/2BPb2K/1nr4p/7b/1rp1R1rP/2p1q2B/2q3q1 b - - 0 1 illegal: No possible last move, all moves rejected
K2brQb1/p4Q2/1B1bpp2/BR6/R2PP3/p1rq1nq1/B3nk2/QQ1Nq3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 g6 Na3 g5 Nc2 d6 Ne3 gxf4 g5 d5 Ng4 hxg4 cxd5 Qd6 Ra2 Qd7 Ra1 Qd8 Kf2 Kd7 e4 Kd6 b4 Ke5 h4 Kd4 b5 c5 g6 f6 b6 f3 h5 c4 d6 c3 d7 c2 h6 Qc7 d8B Be6 b7 Nd7 b8Q Ne5 h7 Nh6 g7 Nf5 g8Q Ng3 Qb1 Rc8 Nh3 Ne2 Qf7 Rg8 Ba3 c1Q h8Q Bd5 Bb4 g3+ Ke1 g2 Kf2 Qa3 Ba5 Qd3 Ra2 Qd6 Bdb6+ Rc5 Rb2 a3 Rb4+ Bc4 Ra4 Qb8 Nf4 Qc7 Nd5 Qb8 Ne3 g1B+ Ke1 Qd6 Rh5 Qb8 Bh3 f2+ Kf1 Nf3 Be6 Qe5 Qdc1 Qb8 Nd1 Bh2 Rg5 Bc7 Kg2 Bd8 Qcb2+ Nc3 Q2a1 Qc7 Kh3 f1Q+ Kg4 Qe1 Bd5 Qd6 Kf5 Qdg3 Qhg7 Rh8 Ke6 Rg8 Kd7 Rh8 Bc7 Rg8 Kc8 Rc6 Nb2 Ne2 Kb8 Rc5 Ka8 Rc6 Bb4 Bb3 Nd1+ Rc3 Bc6 Ba2 Rb5 Be6 Bd5 Rh8 Qfg6 Bg8 Ba2 e6 Q6f7 Bd6 Qgf8 Bh7 Q8g7 Re8 Qgf8 Bg8 Bc5+ Ke5 Bd4+ Kf4 Ba5 Kg4 Bf2 Kh3 Bfb6 Kg2 Qc7 Qc2 d4 Qd3 Qcf7 Kf1 Ne3+ Kf2 Nd1+
r3b1K1/q4R2/3bRp2/3np1R1/Bqnp3p/QrP1bN2/1r1P1k2/N1Q2Q1Q b - - 0 1 illegal: No proof kernel
N2K3k/p2pQ3/n2Rprbb/PpPnr3/R1R1rBN1/1N1N2Q1/q4n2/5q2 b - - 0 1 legal: proof: e4 c5 d4 g5 b4 e6 h4 gxh4 bxc5 Ke7 Bc4 e5 Be6 exd4 e5 Bg7 Bg4 Bf8 e6 Kf6 e7 Kg6 Be6 fxe6 Qd3+ Kg7 Qd1 Kf7 Kd2 Kg7 Kd3 h5 Kc4 h3 e8N+ Kh7 f4 h2 g4 b6 a4 h4 f5 h3 g5 d3 f6 d2 g6+ Kh6 a5 Qe7 f7 Nf6 g7 Kh7 g8N Na6 c6 Nc7 Nh6 Na6 c7 Qa3 Qf3 d1Q Ne2 Qg1 Nf4 Qge3 Nd2 Nd5 Ng4 Bh6 f8Q Qg1 Qg3 Qa2+ Nb3 Bb7 c8R Qf1+ Nd3 b5+ Kd4 Rg8 Ke5 Kh8 Qe7 Rg5+ Kd6 Re5 c4 Re4 Rg1 h1R Bf4 h2 c5 Rb8 Rc6 Re5 Nc7 Rf8 Rg2 Rf6 Rc2 Rg1 Rc3 h1N Na8 Nf2 Rc4 Rh1 Rb6 Rh4 Rc6 Ne3 Rb6 Be4 Rc6 Bg6 Rb6 Nb8 Kc7 Nd5+ Kd8 Na6 Rd6 Qae2 Raa4 Qa2 Nh2 Rg4 Bc1 Rgf4 Ng4 Rfe4 Bf4
n1rBq3/2B5/2Q2pNK/R1pQQkpN/1bP1p1r1/3bbnr1/N5P1/Q3q3 b - - 0 2 illegal: No possible last move, all moves rejected
2Nq1B1R/1Q1B1b2/pNBpn1p1/1Pb2r1b/3r2rp/3PNq2/B2K3k/3n2Q1 b - - 0 1 illegal: No proof kernel
rQ3B2/r1Np2PQ/bbQ2NnN/pB1q1pR1/Nknpn3/1q4q1/P7/7K b - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 b4 g6 Nd2 g5 bxc5 gxf4 g5 exd4 Rb1 Qa5 Rb3 Qc7 Rg3 Qd8 Rg4 hxg4 Kf2 Ke7 Kg2 f5 c4 b5 h4 a5 e4 g3 e5 b4 g6 b3 e6 b2 g7 b1N h5 Nc3 c6 Kd6 c7 Kc5 e7 Ne4 e8N Ra7 h6 Ngf6 h7 Nc3 Qh5 Nfe4 Ngf3 Nd1 Rg1 Nd6 Ne5 f3+ Kh1 f2 Ng4 Kb4 c5 Ba6 c8Q Qg5 c6 Ne3 c7 Nc6 Nb3 Nec4 Nc5 Qe3 Ngf6 Ne4 Qh3 Rg8 h8N Ne7 Nf7 Qb3 Qh7 Ng6 Nh6 Be7 Qa8 Bd8 c8Q Bb6 Nc7 Rd8 Bd3 f1Q Qc6 Qf3+ Rg2 Rh8 Q8b7 Rha8 Qb8 Nc3 Bf4 Qd5 Bd6 Ne4 Bf8 Qc2 Rh2 Qb3 Rh5 g2+ Kh2 Ne3 Bb5 Nc4 Rg5 Nc3 Kg3 g1Q+ Kh3 Qe3+ Kh2 Ne4 Kh1 Qg3 Na4+
1Qn4k/2NRp2p/1b2p3/2pQbRKb/1RP1r1QN/6r1/nQ2PBrq/4q3 b - - 0 2 legal: proof: g4 f5 a4 fxg4 h3 b5 axb5 gxh3 Bg2 Na6 Bd5 Nb8 Be6 dxe6 b4 Kf7 c4 g5 d4 Kg7 Kd2 a5 Ke3 g4 Kf4 h2 d5 g3 b6 a4 d6 g2 b7 a3 b5 a2 b6 Nd7 b8Q Ngf6 b7 Ra3 Qd5 Rg3 Na3 Ne4 Nf3 g1B Nh4 Nc3 Rb1 a1Q Rb4 Rg8 Nb5 Nb6 d7 Kh8 Be3 Na2 f3 c6 Nc7 Bg7 Bf2 Qe1 Qf5 Qe8 d8Q Qh5 Qdd5 Bd7 Qg6 Nc8 Qg4 Qe8 Kg5 Be5+ Kh6 Qf7 f4 Be8 f5 Rg5 f6 Qg8 Qa7 Bh5 b8Q Qd8 f7 Qd6 Qab7 Rg8 Ba7 Bb6 f8R Rg2 Rg1 h1R Rf5 Rh3 Rgf1 Rhg3 R1f4 Re3 Rd4 Re4 Rd1 Bg7+ Kg5 Qh2 Qd2 Rg3 Qb2 Rg2 Rd7 Be5+ Kh6 Ba5 Bg1 c5 Bf2 Bb6 Qd5 Rg5 Qf4 R5g3 Qg4 Rh3 Kg5 Rd3 Na8 Rdg3 Nc7
bQ6/3p1pnB/p4rN1/2bnR2q/1PqQr1pB/1R1P3Q/K1k2n2/B2B3q b - - 0 1 legal: proof: f4 b5 g4 h5 b4 hxg4 a3 e5 Nc3 c5 Na4 c4 Nc5 exf4 a4 Bd6 axb5 Bf8 Nb3 cxb3 e4 Ke7 h4 Kf6 c4 Ke5 c5 Kd4 b6 g5 c6 g3 b7 g2 c7 a6 h5 b2 e5 b1Q h6 f3 h7 g4 e6 Ke4 e7 Nh6 e8Q+ Qe7 Ra5 Qc2 Ne2 Kd3 Re5 g1Q Rh3 Nc6 b8Q Bb7 c8B Nf5 Rg3 Rg8 h8B Ng7 Rh3 Qh1 Nf4+ Kd4 Rg3 Qc4 Ng6 Qec5 Qe7 Q5b5 Qh4 Ne7 Qh3 Be4 Bb7 Nd5 Bc6 Bc5 Bb7 Qa5 Bc6 Re8 Ba4 Re6 Bc2 Rf6 Bd3 Qh2 Bfe2 Qa1 Bc2 Qa5 Bed3 f2+ Ke2 Qg2 Qg1 Qab5 Kd1 Qh1 Be2 Qa5 Rb3 Bf3 Bf5 Qab5 d3 Bg2 Qd6 Re8 Bg5 Bf3 Qb8 Re7 Rb2 Kc3 Kc1 f1N Kb1 Ng3 Bh4 Ne4 Bd1 Nf2 Rb3+ Kd2 Ka2 Ree6 Be2 Kc2 Qa1 Nc7 Qd4 Ba8 Be4 Nd5 B2f3 Rf4 Bf5 Re4 Be2 Rf6 Bd1+ Kc1 Ne7 Kd2 Bh7 Kc1 Ng6 Kd2 Be2 Kc2 Bd1+ Kc1 Qb6 Ne8 Qd6 Ne3 Qb8 Rff4 Re7 Ba7 B4f6 Qh5 Qd5 Bc5 Qde5 Nd5 Bh4 Kd2 Qa1 Rf3 Bb2 Ng7 Re5 Rff4 Ba3 Rf3 Qd4 Rff4 Bb2 Rf6 Ba1 Kc1 Bf3 Kc2 Bd1+
kq1q2q1/1Qp2R1b/1p1pBr2/2B2R1r/nQ2N2n/1PP5/KB4p1/2bQ1Br1 b - - 0 2 legal: proof: g4 e5 e4 a5 d4 h5 b3 hxg4 Na3 a4 Nc4 a3 Nb2 axb2 dxe5 f5 Bg2 fxe4 Bh3 Rh7 Bf1 Rh8 Kd2 b1Q Kc3 g5 f4 b6 h4 e3 a4 g3 a5 g4 h5 g2 e6 g3 h6 e2 f5 e1R h7 Ke7 a6 Bb7 a7 Be4 Be3 Nh6 Ra5 Na6 Nh3 g1Q Nf2 Qb8 f6+ Kd8 e7+ Kc8 e8B Kb7 f7 Ba3 f8Q Bc1 Qb4 Nc5 Bf7 Nf5 Be6 Nh4 Bd4 Rf8 h8B Bh7 Ne4 Rf6 Rh3 g2 Rf3 Qh2 Be3 Qg3 Rf5 Qgg8 Rb5 Rh6 Rf7 Rf6 Ra5 d6 Bf2 Qgd8 Rb5 Nd3 Rf5 Nb2 Bc5 Na4+ Kc4 Rh6 Bb2 Rf6 c3 Qc2 Kb5 Qd2 Kc4 Qg5 Kd3 Qgg8 Kc2 Be3 Kb1 Bc1 Be2 Rg1 Ka2 Qbc8 Bb5 Rb8 Be2 Ka8 Bf1 Qb7 Bd7 Rc8 Be6 Qb8 Kb1 Qge8 Bec4 Kb7 Qa3 Qde7 Bf2 Bg6 Bc5 Qh8 Qb4 Rg8 Rh7 Qed8 Rf7 Bh7 Be6 Rg5 Ka1 Rh5 Ka2 Qbc8 Nd2 Qhg8 Ne4 Kc6 a8Q+ Qb7 Qc8 Qb8 Qd7+ Kb7 Qc8+ Ka8 Qb7+
r1nbBQ2/1K2p1q1/N1p3qR/3Q4/p1R3N1/PNb1Rbr1/k1P2p2/1qn3N1 b - - 0 2 legal: proof: f4 g5 fxg5 d5 e4 dxe4 a3 b5 Qg4 b4 Qe6 Qd3 Qa2 Qd8 g4 b3 g6 bxa2 b3 h6 g5 Bg4 g7 Bd7 g6 Bb5 Bb2 Bd7 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 Ke3 Ke6 h4 Kd5 d4 a5 b4 f5 b5 g4 h5 c6 b6 f4+ Kd2 f3 Kc3 f2 b7 e3 h6 g3 h7 e2 Rh2 e1B+ Kd3 g2 Be2 a4 Rh4 Qe8 Bh5 Na6 b8N Nh6 g8Q+ Nf7 g7 Bg4 Nd2 Bf3 Nb3 Ba5 Re1 a1Q Re3 Bd8 Rhe4 Qf1+ Kc3 Nc5 Kb4 Qb1 Na6 Qd7 Rf4 Qe6 Rh4 Nd6 Be8 Nc8 Rh6 Nb6 Ka5 Kc4 d5 Nd3 d6 Kc3 d7 Qg6 Qd5 Kb2 g8N Bg7 Nf6 Rg8 h8Q Nc1 Ng4 Bf6 Qg7 Ka2 Qf8 Be5 Kb4 Nc8 Kc5 Ba5 d8R Bec3 Rd6 Bd8 Rde6 Rg7 R6e4 Rg8 Ne2 g1Q Rc4 Qg3 Ng1 Qe5 Rh7 Qh8 Rh6 Qhg7 Nc7 Nd6 Kb6 Nc8+ Kb7 Rh8 Rh1 Rh3 Na6 Rg3 Rh6
Kbrnn2B/2Q1Qbp1/pb1BNp2/4P3/Bq1R4/BpR1r3/P2q1R1n/3k4 b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 e5 Na3 exf4 bxc5 d5 c6 Nd7 c5 Nb8 Nc4 dxc4 Kf2 Ke7 h4 Ke6 d4 Kd5 e4+ Ke6 h5 b5 h6 a6 h7 g3+ Kf3 b4 e5 Kd5 c7 g2 c6 c3 Rh4 b3 Ne2 Kc4 Ke4 g1B d5 c2 d6 f3 d7 f2 Qd6 Qe7 d8B Be6 Nd4+ Kc3 Bb5 f1N c8Q Nh2 c7 Nc6 Ba3 Kd2 Rf1 c1Q Rf2+ Kd1 Ba4 Qd2 Qc5 Qd6 Be7 Nd8 Qa7 Bc4 Ne6 Q6b4 Bd6 Rb8 Qd7 Rc8 Qe7 Nf6+ Kf5 Qe3 Rd4+ Qed2 Qc5 Ne8 Ke4 f6 Qb6 Be2 Kd5 Bh5 Qc6 Bf7 Qb6 Ra8 c8R Rb8 Rc2 Rc8 Qbb7 Rc3 Qbc7 Rd3 Rc3 Re3 Qed7 Rg8 h8B Be7 Bc5 Bd6 Qe7 Nb7 Kc6 Nd8+ Kd7 Rf8 Kc8 Rg8 Qb8 Bc7 Bd6 Rf8 Qb6 Bb8 Qbc7 Rf3 Re3 Nb7 Rdd3 Rh3 Rg3 Rg8 Rf4 Bb6 Rgg4 Re3 Rf2 Rf8 Rgd4 Rg8 Qcd8 Nc7 Rc3 Rf8 Kd7 Rg8 Kc6 Re8 Qdd7 Rc8 Qdd8 Ne8+ Qdc7 Nc5 Ng5 Ne6 Kb7 Nd8+ Ka8 Rd3 Ne6 Rg3 Qb7 Re3 Qbc7
bK1B4/p2r3B/1p1Q3B/1Bp1N2b/1Pb2NNQ/4nbp1/q1P5/bR1nrk2 b - - 0 2 legal: proof: b4 h5 g4 g5 f4 e5 d4 Qe7 a4 Qe6 Nd2 Qa6 Ra3 Qxa4 Rg3 Qa2 dxe5 gxf4 g5 Nc6 Rg2 Nb8 Rg4 hxg4 Kf2 Ke7 e4 Ke6 h4 c5 h5 f5 g6 d5 h6 f3 Kg3 b6 Kf4 f2 h7 d4 g7 d3 Rh6+ Nf6 g8N g3 Rh2 Bb7 Qe2 Nc6 Qd1 Rd8 Ne2 Nd4 Nf3 d2 Rh1 Ba8 Nh6 Bg7 Ng4 Rhe8 h8B Rd7 Bh3 f1B Bg2 Kf7 e6+ Kg6 Ke5 f4 e7 Nb5 Bh3 Kh5 Rg1 Rf8 e8B+ Rff7 Rh1 Nd5+ Ke6 Nbc3 e5 Re7+ Kd6 Ne3 e6 Bg2 Nfe5 Kh4 Bb5 f3 Nf4 f2 Rg1 Re8 e7 f1B Kc7 Bgf3 Bg2 Bc4 Bh1 Bfe2 Be4 Bf3 Bh7 Bf6 Qe1 d1B Qd2 Bde2 Qd6 Ncd1 Rf1 Bfb7 Bg7 Bbf3 Bh6 Bg7 Nc6 Ba1 Nce5 Bed3 Bb2 Bg6 Bc3 Bh5 Rg1 Nf2 Rb1 Nfd1 Bb2 Rd8 Bd4 Rd7+ Kb8 Rf6 e8Q Re6 Qh8 Ree7 Nfd3 Kh3 Bc3 Kg2 Nf4+ Kg1 Qd8 Re6 Qh4 Kf1 Bd2 Ree7 Bg5 Re6 Bd8 Nf5 Neg6 Re1 N6e5 Nfe3 Nfg6 Ng2 Bh6 Nge3 Nf4
K4NBk/1r4Qp/2n3pP/4N2p/3Qn2n/N1RnB1b1/3NpbP1/b2Qq1r1 b - - 0 2 illegal: No proof kernel
2K1B2n/Q1p2B2/PQP2p1b/2r1p3/1nk1NBNn/1p2B3/r2R1bb1/1qbN4 b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 e4 dxe4 f4 h5 f5 g6 Ra3 Rh7 Rg3 Rh6 fxg6 Rh7 g5 Rh8 Rg4 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 Kd5 c4+ Kd4 h4 b5 h5 e3 a5 e2 a6 e1B c5 g3 h6 e6 g7 b3 g6 b2 h7 g2 Nh3 g1B Rh2 b4 Bb5 b3 Ng5 Ra7 Nc3 b1N Be8 Bd7 c6 Bef2 Nge4 Ne7 g8B Kc4 Ke5 Na3 d4 Nc2 d5 Bh6 d6 Nf5 g7 Nb4 Bf4 Nh4 Qa1 Qe7 Qa5 Rb7 Qb6 Qf8 Kf6 e5 Nd1 Bh3 d7 Bg2 d8B Be3 Be7 Bgf2 Bc5 Bc1 Bce3 Qc5 Qa7 Rb5 Qb6 Qd5 Ke7 f6 Bgf7 Rc5 g8N Nd7 Kd8 Nf8+ Kc8 Nfg6 Qa7 Bg7 Nh6 Rg8 Ng4 Nh8 Rh1 Bh6 Re1 Rg7 Re2 Rg8 Rd2 Rg7 Bg6 Qd3 Bh5 Qb1 Qb6 N8g6 h8Q Rd7 Qf8 Nh8 Bhf7+ Rdd5 Qa7 Ra5 Re2 Ra2 Qfc5+ Kd3 Qcb6 Kc4 Bh5 Rda5 Rd2 Rc5 Bhf7+
Qrb5/1bb2p1r/1RB2Pb1/2n4R/p1pN1R2/Pr1kq3/pQ1B4/nBKB4 b - - 1 2 legal: proof: h4 d5 d4 e5 c4 g5 a3 gxh4 cxd5 exd4 Bh6 b5 Nc3 b4 Bc1 b3 Na2 bxa2 Kd2 Ke7 b4 Kf6 e4 Ke5 g4 h5 b5 a5 b6 c5 g5 c4 d6 h3 g6 h2 g7 d3 f4+ Kd4 f5 a4 f6 h4 d7 h3 b7 Rh5 e5 Rh7 e6 Qb6 d8Q+ Nd7 b8R Nh6 g8B Ng4 e7 Ne3 e8B Nc2 Be2 Bd6 Nf3+ Ke4 Nd4 Bc7 Qg1 Nc5 Bd1 Qa7 Rb7 Rb8 Qf2 Qb6 Rb1 Na1 Nc2 Qe6 Rf1 h1B R1b5 h2 R7b6 Bg2 Bd7 h1R Be8 R1h3 Bc6+ Ke5 Qe8 Be4 Qg2 Bg6 Rf4 Rf3 Kc3 d2+ Kb2 Rh5 Bh7 Qe7 Be2 d1B Bd2 Rb3+ Kc1 Rh2 Bg4 Bf3 Ra5 Bfe4 Bd1 Qe6 Qd8 Qh3 Qe2 Qe3 Be8 Bd7 Ne1 Kd4 Rb4 Bh5 Rb6 Rb7 Qa8 Bc8 Bg6 Rb8 Qd3+ Ke5 Qc2 Kd4 Bf5 Na6 Bb5 Bg6 Qc3+ Kc5 Qb2 Beb7 Bb1 Rh7 Nc2 Kd5 Rf1 Ke4 Rf4+ Kd3 Bc6 Bh3 Rc5 Bhc8 Rh5 Nc5 Nd4+
k1Q5/pn1pn1b1/1q4N1/pR3p2/1nN1bR2/1BP2bK1/Q2NrP1r/nQ1Q4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 gxh5 e5 a5 e4 Bd2 b6 Bh3 bxa5 Kf1 e3 Kg2 exd2 Kf3 Bd6 Bf1 Ba3 Kg2 Bf8 b4 f5 h4 g5 e4 g4 c3 g3 e5 d3 b5 Qc7 b6 Kd8 h6 Na6 h7 Bb7+ Nf3 Kc8 e6 Kb8 h5 Nb4 h6 Bg7 e7 Be4 b7 Qb6 e8N Ne7 Nd6 Re8 Rh4 Rh8 Kh3 g2 Rf4 g1N+ Kg3 Nh3 Nh4 Ng5 Nc4 Ne6 Ng6 Nd8 Ra2 Re8 Rb2 Rh8 Qc1 d1N Nbd2 Ne3 Qd1 Re8 h8Q Nec2 Qg8 Na1 Qe6 Rh8 h7 Re8 Nb3 d2 h8Q Bf8 Bd3 Bg7 Qhh1 Rh8 Bc2 Rh2 Qb1 d1B Nbd2 Bdf3 Qhd1 Kc7 Qg8 Kc6 b8Q Nb7 Qbf8 Re8 Bb3 Kc7 Qff7 Kb8 Qd5 Ka8 Qc6 Nc8 Qa4 Re5 Qaa2 Re7 Qd8 Re6 Qc7 Ne7 Qc5 Bd5 Qc6 Re2 Qc7 Bde4 Qc5 Be5 Qc8+ Bb8 Qc5 Nbc2 Ba4 Be5 Rb5 Nb4 Bb3 Bg7 Qc8+
1n2r1bb/rr2nQ2/R1b1pRRP/5pQk/6Np/Nq1p1Q2/r3P3/3B1KQ1 b - - 0 1 illegal: No proof kernel
rNbKQ1n1/b1p3b1/P1BN1pq1/QQ2p1r1/3k3B/3N1b1p/2P1R3/Qnr5 b - - 0 1 illegal: No proof kernel
5r1b/1nqp1b2/1QbP1pNN/1Q4B1/bQ1RBp1K/nQ2r1P1/1k2p1q1/N7 b - - 0 1 illegal: No possible last move, all moves rejected
BRKB3N/q1Qp1BQ1/2p1r2p/1PP1rbB1/3R4/1qq3nQ/qp3b2/2nk4 b - - 0 1 illegal: No proof kernel
Qq1qR2K/1PQ1R2n/Rn1b1rQ1/pN3p1B/Pk3q2/2rR2p1/b2p3q/2N5 b - - 0 1 legal: proof: f4 b5 g4 g5 c4 bxc4 d4 e5 dxe5 h6 Be3 Nc6 Bf2 Nb8 Bh4 gxf4 g5 Ba3 g6 Bf8 Bg5 hxg5 Kf2 Ke7 Kf3 c5 Kg4 d5+ e6 Kd6 Kf5 f3 h4 a6 e4 c3 b4 d4 h5 c4 h6 d3 g7 f2 h7 d2 b5 Kc5 b6 g4 e5 c2 b7 c1Q Ne2 c3 Na3 c2 Rh3 Nd7 e7 Nb6+ e6 Kb4 e8R Nf6 g8Q Bd6 Rd3 g3 Qg6 Rf8 h8Q Nh7 Nb5 f6 Bg2 f1Q+ Bf3 Qa3 Qhg8 c1Q Re7 Qab2 Qh8 Qcc7 Qc1 Qb8 Qc7 Qd4 Nc1 Qff2 Qhg8 Qh2 Bh5 Qc4 a4 a5 Rb1+ Qb3 Rb2 Bd7 Rc2 Qc4 Rcc3 Qd4 Rc6 Be8 Qh8 Bf7 Qhg8 Nc4 Ra6 Nb6 Re8 Qdh4 e7 Ba2 Qh8 Bb1 Ke6 f5 Qhg8 Qf4 Qh8 Rg8 Kf7 Rf8+ Kg7 Ba2 Qg8 Rf6 Kh8 Qh6 Rf8 Qf4 e8R Qa7 Re5 Rc8 Re7 Qa8 Rfe8 Qb8 Qd7 Rc3 Qc7 Qg2 Qe6 Qh2 Qec8 Qa7 Q8b8 Qa8 Qa7 Qab8 Qa8
3q1r2/Q5B1/pn1BB2p/K1p2n1k/2pPN2P/2R1N2r/1bb2r1N/BQ1rq3 b - - 0 1 legal: proof: f4 e5 c4 b5 b4 g5 a4 d5 axb5 dxc4 Ra4 g4 Ra3 exf4 Rf3 gxf3 h4 f5 g4 Kf7 e4 Kg6 d4 f2+ Kd2 c6 Kc3 a6 b6 f3 b7 h6 b5 f4 g5 Qc7 b6 Qd7 e5 Qf7 e6 Kh5 e7 Bf5 Kb4 c5+ Ka5 Bh3 e8Q Nd7 b8B Bf5 g6 Bc2 b7 Nb6 g7 Ne7 g8N Nf5 Qe7 Qf6 Be5 Rb8 Bh3 f1R Nc3 Rf2 Bb2 Bg7 Qc7 Qd8 Ba1 Bf6 Ne7 Bg5 Bg7 Re8 Ned5 Re3 Qe1 Rd3 Ne3 Rd1 Qf1 Rh2 Nge2 f2 Ng1 f3 Ne4 Rc8 Qd3 f1Q b8B f2 Nf3 Qg1 Qb7 f1R Bd6 Rff2 Qa7 Ra8 Qb3 Qe1+ Qb4 Rc8 Rg1 Rh1 Rg3 Ra8 Nh2 Rb8 Neg4 Bc1 Rc3 Bb2 Qb5 Qc7 Ne3 Rf8 Qb4 Qd8 Qb3 Ng3 Be6 Nf5 Nhg4 Rh3 Nh2 Bd3 Qa2 Bc2 Qb1
1qnN1B1Q/N1q3r1/1nBNpBpK/3b1B1p/2p5/1k5b/2PQP3/R2br2b b - - 1 2 illegal: Other
2n5/nKp3QB/Q1rp1RRb/N3r1QR/q1q1PNp1/1p3b2/b1P4k/Q5b1 b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Bf4 g5 Bg3 hxg3 Qd5 g4 Qd3 Qh4 Qd1 Qd8 Qd5 g6 Kd2 Ke7 Ke3 b5 Kd4 g5 Kc5 g2 h4 g3 a4 g4 f4 b3 a5 b4 e6 Kf6+ e7 b2 a6 b3 a7 Bg7 e8Q Rh5 f5 Rh8 h5 Kg5 h6 Kf4 f6 Bf8+ Qe7 Nc6 f7 Bb7 h7 Qe8 Na3 b1B Nc4 Rb8 Ra5 Ba2 a8Q d6+ Kb5 Bg7 f8R+ Qf7 Qd7 Nge7 Qa6 Nc8 Rh6 Rg8 h8Q Ra8 Qb6 Ra6 Rh5 Bh6 Qa1 Rg6 Qdc5 Re6 Nh3+ Ke4 e3 Kf3 Bd3 g1Q Bh7 Kg2 Qf5 Qe8 Rf6 Qf1 Qg7 Kh2 Rg6 g2 Qg5 g1B Ra4 Qf4 Na5 Qff7 Rf4 Ba8 Rff6 N6a7+ Kc4 Bf3 e4 Qa4+ Kd5 Nb5 Kc6 Nba7+ Kb7 Re5 Qb5 Rc6 Qa6 Qfc4 Nf4+
K4B2/1Q2pkN1/bpn1n1B1/pP1bq3/1b6/2B1P2Q/n1QRp3/1qBNrq2 b - - 0 1 legal: proof: d4 g5 h4 gxh4 a4 c5 a5 cxd4 a6 Qc7 Qd3 Qb6 Qd1 Qd8 b4 f5 e3 b6 Bc4 f4 Kd2 f3 Be2 Nc6 Bb5 Rb8 Bf1 Rb7 axb7 a5 Ra3 Nb8 Rd3 Nf6 Ke1 Bh6 Rd2 Ng8 Re2 fxe2 Kd2 Bf8 Kd3 h5 Kc4 d5+ Kb5 d3 c4 h3 f4 h2 g4 h4 f5 d2 f6 d4 g5 h3 f7+ Kd7 g6 Ke6 g7 d3 c5 Qe8+ c6 Qd8 c7 Qd4 Bg2 Nf6 g8Q Ne8 Nc3 Ng7 Nf3 Nc6 Ka6 Qe5 Qc2 d1N b5 d2 Nd4+ Kf6 Rg1 h1B Be4 h2 Nf5 Ne6 Qg4 Bg7 f8B Kf7 Qh3 Rh5 Bd3 Bd5 Rg4 h1Q Rd4 Bf6 Ng7 Qf1 Bf5 Rg5 Rd3 Rg1 Be4 Nb2 Nd1 Na4 Bf5 Nc3 Bg6+ Kg8 Rd4 Na2 Rd3 Bh4 Rd4 Be1 Rd3 Ncb4+ Ka7 Nc6+ Ka8 Rh1 b8B Ba6 c8Q Rg1 Nb2 d1Q Qb7 Bb4 Rd4 Qd3 Nd1 Qb3 Rd2 Qb1 Bh7+ Kf7 Bd6 Qg3 Be5 Qg5 Bc3 Qe5 Qd3 Qf2 Be4 Re1 Qc2 Qf1 Bg6+
2Q4r/pR3BKp/PQ3RpB/q5RR/b5P1/1n1nn1k1/p2N2bq/1Qb1n3 b - - 0 1 legal: proof: f4 e5 d4 exf4 a4 c5 h4 cxd4 h5 b5 h6 g6 a5 f6 Nc3 Na6 Na4 bxa4 Qd2 Rb8 Qd3 Rb5 Qd1 Re5 Be3 Re7 Bc1 Rg7 hxg7 Kf7 Rb1 Ke7 Ra1 Ke8 Kd2 Kf7 Kd3 Ke6 Ke4 d5+ Kf3 Kf5 b4 a3 c4 a2 e3 d3 c5 d4 c6 d2 c7 d3 b5 Nc5 b6 Nb3 b7 Ba3 b8R Nh6 g8Q Nf7 a6 Bd7 c8Q Qa5 Qdc2 d1N Rb7 Nb2 g4+ Ke5 e4 d2 Rh5+ f5 Qb1 d1Q+ Be2 Qdd2 Bc4 Qh2 Qgd8 Ba4 Qb6 Nd3 Be3 Bc1 Rg5 Nd6 Bf7 Nc4 Bd2 Na3 Rh5 Ndc5 Rg5 Nc2 Rh5 Kd4 e5 Kd3 e6 Kd4 e7 Ke5 Nh3 Nd3 Nf2 Nce1+ Ke2 f3+ Ke3 Nf4 Ne4 f2 Rg5 f1B e8R+ Ne6 Rd8 Bg2 Rd6 Nf4 Rc6 Nfd3 Rf6 Ba3 Bb4 Bc1+ Nd2 Be8 Bf8 Ba4 Ke2 Kf4 Bh6 Kg3 Ke3 Nbc5 Kd4 f4 Bc4 f3 Bf7 Nb3+ Ke4 Ndc5+ Ke5 Ncd3+ Ke6 f2 Ke7 f1N Ke6 Rd8 Ke7 Be8 Kf8 Ne3 Kg7 Ba4 Qbc2 Nd4 Rb1 Rf8 Rbb5 Nb3 Qb1 Rd8 Rh5 Rh8 Rbg5
n5qQ/p1RBb2N/n2rpn2/6p1/1q2P1N1/p2NNRP1/2RQ3b/1b2nK1k b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 g5 Na3 f5 Rh4 f4 Rh1 Na6 Be3 fxe3 Nb1 Rb8 Ra2 Rb6 Ra1 Rg6 hxg6 Qb6 Rh3 Qc7 Rh1 Qd8 f4 d5 b4 Kd7 c4 Ke6 b5 h5 g7 d3 c5 d4 f5+ Ke5 b6 Kf4 b7 Kg3 b8N d2+ Ke2 a3 c6 e6 f6 h4 c7 h3 f7 h2 Nc3 Be7 f8Q Nf6 Qc1 d1N g8R Nf2 Nd5 Nd3 Nc6 Ne1 Nf3 Qe8 Rg1 h1Q Nfe5 Kh2 Ncb4 Qg6 Ra2 d3+ Kd1 d2 Ke2 d1N g3 Nb2 Rg7 Nc4 Qd2 Nb6 Rc2 Na8 Nbd3 Qh7 Rf7 Qg8 Qe8 Bd7 c8N Bb5 Ncb6 Ba4 Rc7 Bc2 Nbd7 Bb1 Nf8 Rh7 Rc2 Rh8 Nh7 Qg2+ Kd1 Qf2 Rg2+ Kh1 Ng4 Qg1 Rf2 e2+ Kc1 Qh2 Rf3 Qg1 Qf8 Qb6 Nde3 Qb4 Rg7 Qf7 Qc8 Rd8 Qb8 Rd6 Qh8 Qg8 Rf7 Ng2 Rg7 e1B Kd1 Bf2 Ke2 Bg1 Rf7 Bd8 Rfc7 Bh2 Kf2 Ne1 Be2 Nd7 Kf1 Be7 Nf4 Qc3 Bb5 Nf6 Bd7 Qb4 Nd3
n1qB3n/3p1rk1/b1RN2R1/1N1Qp3/1nbQ1b1p/K2P2R1/pN3NqP/1b6 b - - 0 1 illegal: No possible last move, all moves rejected
N2N3n/N2p1k1p/pqN1b1nP/P6p/rQp1b3/6KB/3nrrQ1/B2Q2R1 b - - 0 2 legal: proof: d4 b5 c4 bxc4 f4 e5 a4 exd4 e4 g6 b4 Bc5 h4 Qg5 h5 Nf6 e5 Kd8 h6 Ng8 Rh5 Bd6 e6 Be5 fxe5 gxh5 Ra3 Qf6 Rh3 Ke8 Rh1 Qd8 Kf2 c5 g4 f5 a5 c3 b5 a6 e7 c4 g5 c2 b6 d3 b7 d2 g6 f4 g7 f3 Ne2 Kf7 e8N Ne7 Nbc3 Nbc6 b8Q Ng6 Bb2 c1R Nc7 Rf8 Bh3 Nce7 Kg3 f2 Rg1 Nh8 Nd4 Neg6 Nc6 Bb7 N3b5 Ra1 Nba7 Ra4 Ba1 f1N+ Kf3 Bc8 Qb4 Bb7 Kf2 Rb8 Na8 Qb6+ Kf3 Rbe8 e6+ Kg8+ Kg2 Rf6 e7 Kf7 Qe1 d1B Qe2 Rb8 e8N Nd2 Kg3 Rf2 Qe1 Bg4 Qd1 Be6 Nd6+ Kg8 Nd4 Bbd5 Nb7 Be4 Ndc6 Rbf8 Nb5 Re2 Nba7 Kf7 g8Q+ Ke8 Qg7 Rff2 Qg8+ Nf8 Qg5 Nfg6 Qg4 Kf7 Qf3+ Ke8 Qg2 Kf7 Nbd8+
1kb1rn2/QpRQ1R1p/Q4Q2/q4B1b/N2b1p2/p1R1BPPK/1p1r4/2rn4 b - - 0 1 illegal: No proof kernel
1Q2Nr1k/N1Rn4/q7/2pRq1N1/1p2pPQ1/2qrnNQ1/1P1p1p1B/2bb3K b - - 0 1 illegal: No proof kernel
b4bQ1/N2Rpq1Q/B1n2p1p/BB1nr1pB/5qr1/4RP1K/2Pp2R1/1k1r4 b - - 0 1 illegal: No proof kernel
3k2qQ/1pB4R/2b1pp2/7B/1P2q1p1/KQRBP3/3nqN1p/nrrbRR2 b - - 1 2 illegal: No proof kernel
N1qQQ3/1qnq2n1/kpBrp3/pQ1N4/N2p1p1R/4PR2/P1K5/b2rQ2b b - - 1 2 legal: proof: f4 g5 b4 c5 bxc5 h6 g4 Qa5 Kf2 Qb4 Bb2 Qxd2 Bf6 gxf4 g5 Nc6 g6 Nb8 Bg5 hxg5 h4 f3 c4 Kd8 g7 Kc7 h5 f5 c6 Kb6 c7 d5 h6 a5 h7 e6 Rh2 f4 Bg2 g4 Nc3 Nh6 g8Q Ra6 Qg5 Nf5 c5+ Ka7 c6 g3+ Kf1 f2 e3 Bg7 Na4 Rd8 h8Q Qb4 Be4 g2+ Ke2 Qe7 Kd3 f1Q+ Qe2 Qf3 Rf1 Ba1 Qe1 Ng7 Ne2 Rb6 Qf5 Na6 Rh4 d4 Kd2 Rb1 Kc2 Rd6 Qd8 Rd1 Qb5 Bd7 Nec3 Be8 c8Q Bh5 c7 Qd7 Qe8 b6 Qcd8 Bg4 Bb7 Qfc6 Ba8 Bf3 Rf2 Qc4 Be4 g1Q c8N+ Kb8 Ne7+ Ka7 Rf1 Bh1 Rf2 Qg4 Rf1 Qh5 Rf3 Qcc8 Ba8 Qhc5 Be4 Q5c7 Bc6 Q8b8 Qb2 Qdc8 Ned5 Q7d7 Nc7 Qbb7 Na8 Nc7 Nd5 Ka6 Qb5+
b6n/pr1pQb1n/P1kP2p1/4K2p/4N3/R4r2/QNRRpNq1/2nn1RB1 b - - 0 2 legal: proof: h4 g5 f4 gxh4 c4 b5 e3 bxc4 f5 Bh6 g4 Bf4 Bd3 Bb7 exf4 Be4 g5 Bc6 g6 Bd5 g7 Bg2 Be2 Bb7 Bh5 Bc8 Bg6 fxg6 Kf2 e5 Kf3 c5 Ke4 h5 b4 h3 a4 h2 d4 c3 f6 c4 a5 c2 f7+ Ke7 f8Q+ Ke6 a6 c3 b5 Qc7 b6 Nc6 b7 Rb8 Nh3 Nd8 Rf1 Nf7 Be3 c1N Nf2 c2 Qd2 Nd3 Ra3 c1N Nc3 Nb2 Na4 Nd1 Nb2 Rh7 Qd8 Kd6 f5 Qc6+ d5 Nh8 Qe7+ Kc7 f6 Qc2+ Kf3 e4+ Kf4 h1B f7 Nf6 d6+ Kc6 g8N Rg7 f8R Nh7 Re8 Rf7+ Ke5 Rf3 Nf6 Bg2 Bd4 e3 N6e4 Bh3 Rf8 Be6 Rf5 Bf7 Bb6 Ra8 b8R Bb7 Rf8 Rb8 Rc8+ Kb5 Rg5 Ba8 Rg2 Qc6 Qc2 Rb7 Qb1 Qc2 Qa2 Qd2 Rc2 Qe2 Bc5 Kc6 Nh3 Qf2 Rh2 Qg1 Rhd2 e2 Nhf2 Qg4 Nh3 Qg2 Bg1+ Kb5 Nhf2 Kb6 Nc3 Kc6 Nce4+
3k2B1/bP1RrB2/Q2b1n2/4NRn1/3r1b1p/1QBp1qp1/K2pQp1P/2Q4b b - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 d4 cxd4 axb5 e6 Nc3 fxg4 f5 e5 Nd5 Nc6 Nf4 exf4 Bh3 Nb8 Bg2 Be7 Bf1 Bf8 Kd2 d5 b4 h5 e4 a5 c4 g5 Kc2 f3 Kb3 g3 e5 g2 e6 a4+ Ka2 g4 c5 g3 b6 h4 b7 a3 f6 d3 b5 d4 e7 d2 c6 Bd7 b6 Qc8 c7 Ra4 Qe2 Na6 b8Q Bc6 Bb2 Nc5 Bc3 Ne4 Rc1 Rh7 f7+ Kd7 b7 Ngf6 Qa7 Ng5 Qaa6 Bh6 f8Q d3 Qf7 Qf8 Qb3 Rd4 Rc2 Be4 e8B+ Ke7 c8Q Qf7 Qcc4 Kd8 Rc1 Qf8 Rc2 Re7 Bf7 Bc6 Qb2 Bd5 Qc1 Be4 Qb3 Bd5 Nh3 g1B Bg2 Be3 Nf4 f2 Re1 Bc6 Bh3 Bh1 Ng6 Bf4 Bhe6 Bd6 Bg8 Qf7 Ne5 Qh5 Bef7 Qf3 Kb1 a2+ Kb2 a1B+ Ka2 Bg2 Bb4 Bb2 Rc7 Bh1 Bc3 Bba3 Qf1 Bdc5 Re3 Bb6 Qe2 Ba7 Re4 Bd6 Rf4 Ngh7 Rf5 Bf4 Qcb1 Ng5 Qbf1 Ne6 Qc1 Ng5 Rd7+
2R2nK1/3Q1pp1/1r2q2N/p3p2r/P1qNB3/r1B1P3/qnp1N1kb/2QQQ3 b - - 0 1 legal: proof: b4 d5 c4 dxc4 g4 h5 f4 hxg4 a4 b5 f5 e5 Ra3 Bd7 Re3 Be6 Re4 c3 Rc4 bxc4 fxe6 Qd4 Bb2 Qd5 Bc1 Qd8 Kf2 Ke7 Ke3 Kf6 Ke4 Kg5 h4+ Kh5 d4 c5 e7 a5 e8N c2 b5 g3 d5 Kg4 b6 c3 b7 g2 d6 Kg3 Kd5 c4 h5 Be7 d7 Bg5 h6 Na6 b8Q Ra7 e3 Nf6+ Kd6 Qc8 Ke7 Nb4 h7 Bf4 Na3 Nd3 Bd2 c1R Qc7 c2 d8Q c3 Nd6 Ra1 Qdd7 c1Q Nc2 Rb7 Nd4 Nb2 Bd3 Ra3 Be4 Rb6 Nge2+ Kf2 Qc4 g1Q N6f5 Bh2 Nh6 Qg2 Qc5 Qc2 Qb4 Qb3 Qc1 c2 Bc3 Qa2 Rd1 Qg6 Rh1 Rf8 h8Q Qcc4 Qg8 Ra8 Qgd8 Qg4 Kf8 Nh7+ Kg8 Nf8 Rg1 Qf5 Rg6 Raa6 Rc6 Qfe6 Nf3 Kg2 Rc8 Rc6 Qdd1 Rab6 Q8d2 Rd6 Qb5 Rd4 Qd7 Rdd6 Q2e1 Rd4 Bh7 Rh4 Nfd4 Rh5 Be4+
NnQ5/1b1N1p1K/2p1r1p1/NqB1rP1R/2Q1pr2/qn1p2P1/k5N1/5RqQ b - - 0 1 illegal: No proof kernel
K6N/5pp1/QRpb1r2/1q1k1p1b/1Q1BN1P1/r2q3r/QQ1pNPn1/5bR1 b - - 0 1 illegal: No proof kernel
4n2n/1rp1R3/2K1B1p1/1NP3P1/1b1q1kNn/2p1Npr1/QRp5/QRr2r1N b - - 0 1 illegal: No proof kernel
1nk3r1/nn2p2p/3RR1BK/2b2p2/Q1q1PNr1/1N1q1pp1/QN5P/R5nR b - - 0 1 illegal: No proof kernel
1K2BB1B/1B1N4/brb1p2p/3RQ2n/p3rpp1/1QbbP3/P2Rk1n1/3R2r1 b - - 0 1 illegal: No possible last move, all moves rejected
1QN4Q/q7/n1pp1n1r/3NbNpp/b3R1Np/3p1R1K/1rPb1BP1/1k5R b - - 0 2 legal: proof: h4 e5 d4 exd4 a4 b5 axb5 g5 e3 gxh4 Bd3 Bb7 Bf5 Bc8 Bg6 fxg6 Kf1 Kf7 b4 Kf6 f4 Kf5 e4+ Kf6 f5 Ke5 b6 a5 b5 h5 f6 a4 b7 d6 f7 a3 b6 c6 Nh3 g5 Kg1 d3 Kh2 Kd4 e5 a2 e6 Rh6 e7 Bf5 e8N Re6 Nf2 Re1 Ng4 Nf6 Kh3 Be6 Nc3 Bb3 Ng7 Qc7 Nd5 Na6 b8N Ba4 b7 Re6 Nd7 Rb8 N7b6 Qe7 Rb1 a1B Nc8 Bc3 Be3+ Kc4 Ra1 Bd2 Nf5 Bg7 f8R Bh8 Bf2 Qc7 Nf4 Kc3 Nd5+ Kb2 Rb1+ Ka2 Rb4 Qb6 Qe1 Qa7 Qe5 Bg7 Re4 Bh8 Be1 Kb1 Qc3 Ng8 Qg7 Rh6 Qh7 Be5 Qh8 Nf6 Rf7 Ra8 b8Q+ Qb6 Qb7 Rb8 Qa7 Qg1 Bf2 Rb3 Qb8 Rb2 Ng3 Nd7 Rf3 Nf6 Be1 Qb6 Nf5 Qa7 Bf2+
1N1r3b/kpp2B1p/1nN5/p1bQRp1Q/5qR1/1RK3p1/1PbN2P1/2n3rN b - - 1 2 illegal: No proof kernel
4n1N1/p1b1BB1Q/p1qRb3/pP1p4/1p1P1Brp/2r2N1N/1K2QB1k/4q2n b - - 0 1 illegal: Other
2r2k1q/KBQ1Q1N1/1p1p1b2/p1RR1r2/PRr1bq2/1Ppp1pn1/1NR5/1Q6 b - - 0 1 legal: proof: f4 e5 g4 g5 d4 exd4 c4 b6 c5 h6 c6 Na6 Bd2 Nc5 Bb4 Nb7 cxb7 Bg7 Be7 gxf4 g5 Bf8 g6 Rh7 Bf6 Rh8 Bg5 hxg5 Kd2 c5 Kd3 f5 Kc4 a5 Kb5 d3 b8Q g4 h4 f3 e4 c4 a4 f2 e5 c3 e6 d6 g7 g3 e7 f4 b3 g2 h5 Qc7 h6 Qa7 h7 Kf7 e8Q+ Kf6 Na3 Ne7 g8R Bh3 Ne2 g1Q Nd4 Nd5 Qb1 Bg2 Ne6 Be7 Nc4 Ne3 Rh5 Be4 Rd5 Qh1 Ng7 Nf5 Ra2 Ng3 Qc7 Rc8 Bg2 f1R Nb2 Qa8 Qed7 Kf7 Bf3 Qc6+ Ka6 Qc4+ Ka7 Qh4 Rd8 Re8 Qe6+ Kf8 Qe5 Bf6 Rd7 Re7 h8R+ Kf7 Rh6 Kf8 Rh7 Qh2 Rh4 Ree8 Rg4 Qh8 Qg5 Re5 Re7 Rf5 Ree5 Rh1 Rc5 Rh4 Bg2 Ba8 Bb7 f3 Red5 Qe4 Qe3 Qe5 Rb4 Rc4 Nd1 Qd4 Rc2 Qf4 Nb2 Qhh4 Ba6 Bc6 Bb7 Qh8 Rd4 Bd5 Qe5 Be4 Rdd5 Nh5 Qe6 Ng3 Qee7+
3R1Q2/1p3R1r/BP1pn1p1/p1p3N1/1k1b2PR/1r4n1/b1NrpR1Q/b4NK1 b - - 0 1 illegal: No proof kernel
r1RB1q2/2N2n2/1R1r2Rr/3R4/2KPB1pN/2N4P/p1q5/3bR1kb b - - 0 1 legal: proof: c4 b5 g4 f5 e4 h5 exf5 d5 cxd5 hxg4 a3 c5 b3 b4 axb4 c4 d4 cxb3 b5 e5 b6 a5 Qd3 e4 Qe2 Na6 Qxa6 a4 Qd3 Ba3 Bg5 Bc1 Bxc1 exd3 Kd2 Kf7 Kc3 Kf6 f4 g5 b7 d2 b8R g3 h3 d1B d6 g4 d7 b2 Bg2 a3 Kc4 Bb7 Nc3 b1R Nf3 Rh4 Re1 Qa5 d8R Nh6 Ra2 Rh5 Nh4 Rb6 Rb2 Be4 Rbc8 Qa4+ Rb4 a2 Rd6+ Kf7 f6 Qc2 Rd5 Ke6 f7 Rd6 f8N+ Kf6 Bf3 g2 f5 g1Q Ne6 Qgf2 Bg2 Qf4 Nc7 Kg5 Rb6 Bef3 Bf1 Bh1 Bg2 Rd8 Be4 Rd6 Re3 Qff2 f6+ Kf4 Re1+ Kg3 f7 Kh2 f8R Qf5 Rg8 Qf8 Rg6 Nf7 Bg5 Rh6 Re3 Kg1 Bd8 Qd2 Re2 Qc2 Re1+
KR2N1qb/1R2N2q/4R3/1Rb3R1/1P6/3R1n2/kpnqPn1b/2B1Qq2 b - - 0 1 legal: proof: h4 a5 c4 e5 f4 exf4 a3 g5 Rh2 gxh4 Rh1 b5 Rh3 d5 cxd5 b4 Rh2 b3 Rh1 Ra6 Ra2 Rb6 Ra1 Rb4 axb4 Kd7 Nf3 Ke7 Ng1 Ke8 Nh3 h5 Rg1 a4 Nc3 a3 Rh1 a2 Nb1 Rh6 Ng1 Ra6 g3 f3 Bg2 Ra3 bxa3 Ba6 a4 Bb5 axb5 fxg2 Kf2 Kd7 Ke3 Kd6 Ke4 c5 d4 c4 g4 h3 g5 c3 g6 h4 g7 c2 b6 h2 b7 h3 Qf1 Nc6 b8R Nge7 g8R Ne5 Nd2 N7c6 Ngf3 g1B Nh4 Nf3 Rg5 f6 Qe1 f5+ Kf4 Be7 Rb7 Qg8 Ng6 Bf8 Ba3 c1Q Ne7 Qb2 Rc1 a1B Rc5 Qc2 Bc1 Bc3 Rcb5 b2 Nb3 Qd3 Nc5 Qd1 Ne6 Qd2+ Kg3 f4+ Kg4 Nh4 Ng7 f3 Kg3 f2 Kg4 Ng2 Kf3 Ne3 Kf4 f1Q+ Ke4 Bf2 Rhg1 h1N R1g3 Nc2 Rd3 h2 Re3 Nd8 Rd3 Ne6 Re3 Bg1 Rd3 Nc7 Ne8+ Kd7 d6 Nf2+ Ke5 h1Q Re3 Qhh7 Re4 Kd8 d7 Ne6 Kd6 Bh2+ Kc6 Qe3 d5 Qd2 Ra5 Bh8 Rab5 Ned4+ Kb6 Nf3 Ka7 Bfg7 Re6 Bd4+ Ka8 Bc5 R7b6 Qf5 Nd6 Kc7+ d8R Qfh7 Rdb8 Kd7 Ne8 Nd1 Rec6 Nf2 d6 Ke6 d7+ Bhd6 Nf5 Kd5 d8R Kc4 R6b7 Kb3 Ne7 Bh2 Re6 Ka2 Rd3
R7/1P2r3/KN2rn1N/NN1qn1nP/1BN3rb/qb1R1q2/3n3Q/3N2k1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 cxd5 f5 e4 b5 exf5 bxa4 Ba6 a3 b5 a4 Qxa4 a2 Qd1 Bd7 Bc8 Bxc8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 h4+ Kf4 d6 e5 h5 g5 f6 c5 d7 e4 d4+ e3 f7 g3 d5 g4 b6 g2 Kb5 g3 b7 c4 d6 c3 f3 c2 Nd2 e2 Nh3+ Ke3 f4 g1Q f5 e1N f6 g2 Nf2 Rh7 Rh3+ Nf3 Ba3 c1Q Qc2 Ra6 Bb4 Be7 f8N Nc6 f7 Qa3 Ne6 Nf6 f8N Qh1 Nc7 g1R Nd1+ Ke2 Nc4+ Kf1 Rg3 Ng5 Rd3 Qf3 Qd2 Rg4 Qh2 Qe8 d8N Qd7 Nf7 Ne5+ Kc5 Qdf5 Kb5 Be6 d7 Bd8 Nh6 Re7 Nd5 Bf7 Ne6 Rc6 Nd4 Rce6 Ndb6 Bg8 Rb1 a1N Rb2 Bf7 Ra2 Nb3 Ra1 Nd2 Ra2 Bc7 d8N Bg8 N8c6 Bd8 N6a5 Qd5+ Ka6 Qff3 Qh4 Kg1 Nb5 Bh7 Re3 Bc2 Rd3 Bb3 Qh2+ Kf1 Ndc3 Bc7 Rb2 Ng6 Nd1 Qa2 Ka7 Bg3 Rb1 Qb2 Ra1 Ne5 Nc6 Bh4 Ra6 Qa3 N6a5 Rg1 Kb8 Rg4 Ra8 Rg3 Ka7 Rg4 Qh3+ Kg1 Ka6 Bg3 Qh4 Bf2 Qh3 Bh4 Qh2+
KRR1R2r/3qn3/b2R1q1b/4b1r1/q1Q2R1R/PNb4k/r2P1B2/b3B3 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e3 Nf6 e4 Ng8 g4 f5 exf5 Ra4 a3 Ra5 Bc4 Ra8 Ba2 b3 Qc2 bxa2 Qa4+ Nd7 Qd1 Nb8 f4 h6 f6 Bd7 g5 Ra6 f5 Ra8 Nc3 Bc8 Ne4 Kd7 Nf2 h5 Ng4 hxg4 g6 Nc6 Kf1 Ne5 Ke1 Nf7 gxf7 Ra4 Qf3 Ra5 Qd1 Ra8 Ke2 g5 Ke3 c5 Ke4 b5 h4 e5 h5 g3 h6 g4 d6 c4 Kd5 c3 h7 b4 Kc5 c2 Qf1 b3 Qf3 b2 Rh6 b1Q Bb2 c1R+ Bc3 g2 Kd5 g3 Qd3 e4 Qc4 e3 Bd4 e2 Nf3 g1Q Bf2 e1B Nd4 g2 Nb3 Ba6 Rg6 Bg7 f8R Qb2 f7 Qbf6 Re8 Bh6 f8R Rc2 Rg4 Qc7 Rb1 a1B Rc8 Qh2 Rfe8 g1B Rc1 Ra2 Rc2 Qc3 f6 Qh4 f7 Qcf6 f8R Qcd8 Kc5 Ne7 Rc6 Qc8 Kb6 Bh2 Rc3 Be5 Rd3 Rb8+ Ka7 Bec3 Rb6 Rg8 h8R Rg5 Rf3 Qc6 Rff4 Qa4 Rc8 Qh3 Rfe8 Qd3 Rbc6 Qd5 Rb6 Ke6 d7+ Ke5 d8B Qdd7+ Rc7 Rc8 Rd6 Rb8 Rb7 Rc8 Bdb6 Rd8 Bh4 Bg3 Bf2 Bh2 Be1 Rc8 Bhf2 Bg3 Re4+ Kf5 Rhf8 Rb8 Rc8 Bge5 Ref4+ Kg6 Rfe8 Kh5 Rcc7 Rc8 Rb8 Rd8 Ka8 Rc8 Rg8 Rd8 Rcc8 Rf8 Rg6 Rh8 Rgg8 Rg7 Rg2 Rg4 Rg3 Kh4 Rg1+ Kh3 Rge8 Rg6 Rgg4 Rg5 Rh4+
4N2r/kR2B1qN/4r3/1RNbN1P1/2r3R1/1K2P3/Nnn1Bq2/1qrq1q2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 f4 d5 a4 b5 c4 e5 cxd5 exf4 a6 b4 a7 Bb7 a5 Bc5 Qb3 Bb6 axb6 Bc8 b7 Ke7 Qa4 Kf8 Qe8+ Kxe8 Kd1 Kd7 Kc2 f5 g4 c5 d4 Kc7 g5 Kb6 e3 h5 d6 h3 d7 c4 d5 c3 d6 h4 Nf3 h2 Bh3 b3+ Kd1 c2+ Kd2 b2 Kc3 Qf8 d8R Nh6 d7 Na6 b8N Bb7 Ne1 f3 Nd3 f2 Ra5 f1Q Na3 b1Q Nb5 f4 Ra1 f3 Ba3 f2 Rg1 h1Q Rg4 Nb4 Ne5 Qg7 Na6 Nd3 Be7 Rc8+ Nc5 Nb2 Kb3 c1R Nc3 Nf5 Ra5 Rh6 Rg8 Re6 d8N Bg2 Na2 Bd5+ Kb4 Qd1 Bf1 h3 Be2 f1Q Rh8 h2 Rh7 Qhg2 Rb5+ Kc7 Ka3 h1R Kb4 Nd4 Ka3 Bb7 a8N+ Kb8 Nc7 Ka7 Ne8 Qgf2 Kb4 Nc2+ Kb3 Rf6 Nde6 Bd5+ Kc3 Rc6 Nf8 Rce6 Ncd7 Rf4 Nc5 Rc4+ Kb3 Qg8 Rg7 Rh8 Rf7 Qg7 Nh7 Rh6 Rf6 Rg6 Rfb6 Re6 Rb7+
b1k1RrrN/3r2n1/3R2Bb/1r6/NRPR3P/6K1/rp3r1B/1r1RN2q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d3 h5 d4 cxd4 gxh5 b6 a4 Nc6 Qe2 Na7 Qa6 Nb5 Qa5 bxa5 axb5 Bb7 Na3 Ba6 Nb1 Bc8 c4 e5 f4 d5 Kf2 Kd7 h4 g5 f6 a4 f5 b3 f7 b2 h6 d3 b6 a3 b7 d4 b8R a2 h7 e4 f6 d2 Kg2 d1R Rh3 g4 Rd3 g3 Ra3 d3 Nh3 d2 Rf3 e3 Nf4 e2 Rfb3 e1R R8b6 Bh6 f8R Ne7 f7 Ra5 Rg6 Re2+ Kh3 g2 Kg4 g1R+ Ng2 Bb7 Rb4 Kc8 Rd6 Rb5 Kg3 Rf2 Re8 Ba8 Bd3 Rf8 h8N Rdf1 Be4 d1R Bg6 Rfe1 Nc3 Nf5+ Kg4 Ng7 Na4 Rdd5 Bf4 Rb1 Bh2 Rdd1 Re4 Qb6 Red4 Qc6 Kh3 Rdd2 Ne1 Qh1 Rg4 Rdd5 Rd4 Rgg2 Re6 Rd7 Red6 Rd1 Rb1 a1R Rc1 Ra2 Rb1 Re8 f8R Red8 Ra1 Rb1 Re8 Rf8 Nd3 Rgf2 Kg3 Rbf1 Rd1 Re1 Rd2 Rb1 Ne1 Rg8 Rd1 Rgf8 Re7 Rg8 Re2 Rdf8 Re8+
K1b3B1/RrpNnk1N/1P1nr1Nr/1NQ5/5q2/5p2/2P1N3/nnB2N1b b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 b4 g5 b3 g6 Ke7 axb3 Bg7 b4 Ke8 b5 Bh6 b4 a5 b6 a4 e3 Bg5 hxg5 a3 Ba6 Rxa6 b5 Ra8 Ra2 Ke7 Rb2 a2 Rb4 Ke8 Ra4 Kf8 Ra7 Ke8 Rb7 Na6 Rb8 Nxb8 Kf2 a1N Kf3 f5 b7 h5 g7 d5 e4 d4 e6 h4 b6 h3 g6 h2 e7 d3 e5 d2 Ne2 Qd7 Qg1 d1R Qc5 Qd8 Nd2 Re1 Nf1 Nd7 b8N Nf8 Nd7 Nh6 g8N Rb8 g7 Kf7 e8N Qg5 Nef6 Rb7 Nh7 Ng6 Rg1 Ne7 e6+ Ke8 Rg3 Nf7 Rg4 Nd6 Rg1 Nc6 e7 Kf7 e8N Qf6 Ne7 h1B+ Kf2 f3 Ke3 f2 Ng6 f4+ Kd3 Ne4 Kc4 f3 Kb5 Nd6+ Ka6 Ne7 Rg4 Qf5 Ra4 Qf4 Ra5 Rd1 Ra2 Rd4 Ra3 Re4 Ra2 Re6 Ra4 Rb8+ Ka7 Rb7+ Ka8 Ng8 Ne3 f1N Ra7 Nd2 Nf1 Ne7 Ndf6 Ndf5 Nd7 Nb1 Nd6+ Kg8 Ne4 Nd6 N4c3 Kf7 Nb5 Nd5 Nhf8 Rh6 Nh7 Ne7 g8B+
1K1B3B/n4R1B/1Br1r1k1/1nq5/q4Bp1/2nPNB1R/1b2p1Pr/4Qq2 b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Nf6 h4 Ng8 b4 g5 h5 a5 b6 a4 b7 Bf5 b5 Bg6 hxg6 Nc6 b8R Nxb8 Nc3 a3 Na4 Ra5 Nb6 Ra7 Na8 Rxa8 Ke2 c5 Ke3 e5 f4 h5 d6 c4 b6 c3 f5 c2 b7 a2 d3 g4 g7 Kf7 d7 h4 f6 h3 Qd2 h2 Qe1 Ne7 g8B+ Kg6 f7 Ra6 Qh4 Re6 Nf3 Qa5 d8B Bg7 f8B Qc5+ Nd4 Nbc6 b8B Na7 Rb1 a1Q Bb2 c1R Qe1 Qa4 Be2 Rc4 Rf1 h1Q Rf7 Rh2 Bf3 Qf1 Bbc7 Bf6 Bb6 Rc1 Bh6 Nd5+ Kd2 Rc4 Nf5 Nc3 Bf4 Bh8 Rh7 Bf6 Rh3 Bh8 Ba1 Bg7 Rb3 e3+ Kc2 e2 Ne3 e4 Kb2 Qf8 Rb5 Qe7 Rf5 Rcc6 Rf8 Qc5 Rf7 Qad4 Kb3 Bh8 Qd2 e1N Bb2 Nc2 Qe1 Qd7 Ba1 Na3 Bb2 Ncb1 Ka4 N3b5 Ka5 N1c3 Ka6 Qdd4 Kb7 Qa4 Kb8 Bf6 Nc4 e3 Ba1 e2 Ne3 Ne4 Rf8 Bb2 Rf7 Bc1 Bg7 Nec3 Bh8 Bb2 Bh7+
2n1B2r/p1B1p1bP/Rp4p1/1Nn2bN1/1n2R2p/1P5R/5KN1/N1b3Nk b - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 b6 e4 fxe4 a5 Qd7 a6 Qd6 Ra5 Qc6 Ra1 Qb7 axb7 Bh3 Qb3 Bf5 Qd1 Bc8 g4 c5 h4 g5 Qf3 gxh4 Qe2 Bd7 Qd1 Na6 Qb3 Rc8 Qg3 Rc6 Qg2 Rh6 Qg3 Rh5 gxh5 Nh6 Qg2 Ng8 Qg6+ hxg6 b8N Kf7 f4 Kf6 d4 Kf5 h6 Kg4 h7 Kg3 f5 e3 b3 c4 d6 c3 d5 e2 f6 c2 f7 Nc5 Rh3+ Kg4 Nc3 Na6 Kf2 e1N Nb5 Nh6 Bf4 c1B Nc6 Bb2 Nb4 Ng2 Nc2 Be6 d7 Be5 d8R Bd7 d6 Be6 d7 Bfg7 f8N Bb2 Bc7 Nc5 Ra6 Ne1 Na1 Bf5 Ne6 Nf7 Nf4 Bc1 Ng2 Nd6 Bc4 Nc2 Bf7 Nb4 Be8 Be5 Rc8 Bf6 d8N Bg7 Rb8 Nc8 Nf7 Nd6 Rd8 Nc8 Re3 Bf8 Rdd3 Bg7 Nf3 Kh3 Re4 Bf4 Ng1+ Kh2 Rc3 Kh1 Ng5 Bc1 Rh3+
BQnb1k1n/2r1BBr1/6q1/1N6/rr1n1PrP/B1B5/3K1BR1/n2b2Nr b - - 0 1 legal: proof: f4 b5 b4 f5 c4 h5 e4 d5 a4 g5 axb5 g4 cxd5 fxe4 Ra3 Nd7 Rh3 Nb8 Qf3 Be6 Rh4 gxf3 g4 Bf5 g5 Bc8 Rg4 hxg4 d4 c5 h4 e5 d6 a5 b6 g3 b5 c4 b7 e3 b6 e2 g6 g2 g7 e4 d5 c3 Na3 a4 Bb2 c2 Bc1 f2+ Kd2 e1R Nf3 g1R Nh2 e3+ Kc3 e2 Bb2 c1R+ Kd2 Rc7 Nc2 a3 Ne3 a2 Nf3 a1N Bf6 Ra4 Nc4 Be7 Na3 Nh6 g8B Kf8 d7 Rg7 d6 Rb1 Rg1 e1N Rg2 Nec2 Ng1 Nd4 Bf7 Rhg8 Nb5 Nbc6 b8B Qe8 d8B Bg4 d7 Rbb4 b7 Bd1 Ba7 Rg4 b8Q R8g7 B1c4 f1R Bcd5 Re1 Bb6 Na7 Ba8 Nc8 Be5 Bg5 Bdf6 Qe6 d8B Qf5 Ba7 Qg6 Bb6 Nhf5 Bd6+ Nfe7 Ne2 Rh1 Ng1 Ndc2 Bc3 Nd4 Be5 Qb1 Bb2 Ng6 Ba3 Nh8 Bdf6 Qg6 Bd8 Nf5 Bc3 Be7 Bf2 Bg5 Bdf6 Nd4 Be5 Be7 Bf6 Bd8 Be7+
4bnn1/1N6/1n4R1/1knp1PrR/r2NB1nP/1Bn1NnB1/1B2b3/1q3B1K b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Kd1 f4 Ng1 f3 Qd2 Bb4 Qg5 Bd2 Qg4 Bf4 gxf4 hxg4 c4 g5 b4 a5 h4 d5 e4 Kd7 c5 d3 b6 Kc6 e5 g3 e6 g2 f5 a4 b7 a3 e7 d2 e8B+ Bd7 Nc3 a2 Nge2 g1N Bb2 Nh3 Rg1 g4 Rc1 a1N b5+ Kc7 c6 Kb6 c7 g3 c8B g2 Rb1 Rh5 Nd4 Ng5 Rc1 Kc5 b6 Ne6 Bd3 f1B Be4 f2 Rb1 Na6 b8N Rg5 b7 Qb6 Nbc6 Nac7 b8B Nb3 Nd8 Ra4 Ba6 Na8 Bg3 Nf8 Nb7+ Kb4 Bc4 Nc5 Bb3 Bd3 Bh5 f1N Be2 Nh2 Bf1 Ng4 Rc1 Be8 Ra1 Bc2+ Ke2 d1N Kf3 Bd3 Rc1 Qb5 Rc2 Nb6 Rd2 Ndf2 Nd1 Bc4 Ne3 Nd1 Rh1 g1N+ Kg2 Nf3 Rg1 Be2 Kh1 Nc3 Rd1 Qd3 Ra1 Ra8 Ra7 Qb1 Ra6 Nc8 Rd6 Ra4 Rh6 Nb6 Rh5 Rg7 Nc6+ Kb5 Be1 N4h6 Rgg5 Rg6 Bg3 Ng4 Nd4+ Ka6 Rh6 Rg7 Rgh5 Rg5 Nd8 Ka5 Rf6 Ka6 Rg6 Ka5 Nb7+ Ka6 Nc6 Kb5 Nd4+
n7/2Pn1Pk1/b3qNn1/b1N1p3/1n1Rr1R1/1RK5/2R1Q1rB/2RqRb1r b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 Bh3 g6 e4 g5 exf5 gxf4 g5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Kf7 Ra1 Ke8 Kd2 Kf7 c4 a5 h4 d5 b4 e5 b6 a4 c5 a3 g6+ Kf6 c6 a2 b5 f3 g7 d3 h5 f2 h6 f1B h7 g3 c7 d4 b7 g2 b6 Qd6 Nc3 Ne7 g8R Ng6 Nge2 g1R Na4 Qe6 Nf4 Nd7 b8R Rg2+ Qe2 Ba6 b7 Bd6 Rb1 a1N Nc5 Nc2 Rbd8 Nb4 b8R Kf7 f6 Bf8 Kd1 d2 Nh5 Bh6 Rb6 Bf4 Rb3 Bg3 Rc3 Be1 Rc2 Rb8 Rc6 Rb5 Rb8 Ra5 Rbb6 Ra3 Rh4 Re3 Rg4 Re4 Rd8 Nd5 Rb3 N5b6 Ng7 Na8 Ne8 Rg8 h8R Rf8 Rh5 Rh8 Rhg5 Rh1 Rf5 Kg8 f7+ Kh7 Nf6+ Kh6 Rcc3 Kg7 Kc2 d1N Bf4 Nb2 Bh2 Nd3 Rf3 Bd2 Re3 Nb4+ Kb2 d3 Rc1 Be1 Rc2 d2 Kc3 Nf8 Rc1 d1Q+ Rd2 Nd7 Rd6 Bf2 Rdc2 Bg3 Qd3 Bf2 Re1 Bg1 Qe2 Bf2 Na4 Bb6 Rd4 Ba5 Nc5
1r6/nNbkP2N/3N1QB1/1b2n2N/2N1NP1b/3prn2/qrR5/1rR2Kn1 b - - 0 1 legal: proof: e4 e5 a4 c5 g4 h5 gxh5 b5 axb5 f6 d4 c4 Qd3 cxd3 Bf4 exd4 e5 Na6 e6 Nb8 Be5 fxe5 h4 d5 f4 g5 c4 a5 b4 e4 h6 e3 e7 e2 c5 a4 h7 a3 c6 a2 b6 g4 b7 g3 c7 g2 b5 Nc6 b8N Bg7 b6 Na7 h5 Nh6 b7 Be5 Na3 Bd7 c8N Bc7 Rc1 a1B Nh3 g1N Rh2 Bb5 Nd7 Rb8 Nf8 Nf7 h6 Ne5 Ng5 d2+ Kf2 d1R Nc4 e1N Ne4 Qd7 Bd3 Qe6 Kf1 Rd2 Re2 Rg8 h8N Ne1f3 h7 Rg3 Nf7 Rb2 h8Q Qa6 Qf6 Qa2 Bc2 d3 Nd8 d2 Nh7 d4 N8d6+ Kd7 Bd3 Ne1 Rf2 d1R Rfc2 Re3 Ne6 Rd2 Ng7 Ne1f3 Nh5 Rde2 Ned2 Rb1 Bg6 d3 N2e4 Bc3 Qf8 Be1 Qh6 Rf8 b8N+ Ke6 Na6 Bh4 Qg5 Rb8 Qf6+ Kd7 Nac5+ Kc6 Ne6 Kd7 Nd8 Rg2 N8b7 Rh2 Rc3 Rhb2 Rc2
b2BBb1n/2qQr3/rB1npbk1/8/NPB1P1b1/K3B3/BN3r1R/6rq b - - 0 1 legal: proof: d4 h5 b4 c5 g4 hxg4 a3 cxd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Rh6 Bd2 Rh7 Bc1 Rh8 Kd2 Kf7 h4 d5 c4 g5 Kc2 a5 Kb2 d3 e4 e6 f4 d4 b6 a4 f5 a3+ Kb3 d2 c5 g2 f6 a2 b7 a1B h5 d3 c6 g3 c7 g4 h6 Rh7 Qe1 d1R Bb2 d2 Rh4 Nc6 b8B Kg6 Be2 Nce7 Ba7 Nf5 Bbd4 Bb7 c8B Re7 f7 Qc7 h7 Nd6 Nf3 g1R h8B g2 Nc3 g3 Bab6 Ra6 Be3 Ba8 Na4 Bf6 Ka3 Rf1 Rh3 g1Q Bb7 g2 Rh2 Rf2 Bc4 Qh1 Bbd5 g1Q Qe2 Rc1 Qd3 d1B Nd2 Bg4 Ba2 Qg3 Nc4 Rg1 Nb2 Qd8 Bdc4 Qe8 Bg7 Qe5 Bgh6 Qc5 Bhf4 Qc7 Qd5 Nh6 Qc6 Nhf5 Qd7 Nh4 Be5 Kg7 B5d4 Ng6 Ba5 Nh8 Bdb6 Qc6 Bd8 Kg6 Bab6 Qc7 fxe8B+
4Nn1r/4Rnqr/nKNrQ1N1/6n1/kN6/NBq2br1/q1p1NP1P/1R6 b - - 0 1 legal: proof: g4 d5 c4 dxc4 e3 e6 g5 h6 b3 hxg5 Bb2 Bd6 a4 b5 axb5 Bf4 exf4 f6 Be5 fxe5 Ra3 e4 Ra2 Bb7 Ra1 Bc8 Ke2 Kd7 Ke3 a5 Kd4 c5+ Kc3 e5 d4 a4 f5 g4 b4 g5 d5 g3 d6 a3 f6 g4 f7 g2 b6 Kc6 f8N Kb5 b7 a2 d7 e3 Nd2 e2 Ne6 e1N Rb1 a1R Nh3 g1Q Nf8 g3 Ng5 e4 Bh3 g2 Nb3 e3 Nd2 e2 Bf5 R1a6 Be4 Qa5 d8N Nd3 Ndf7 e1N Qh5 Ne7 Qg6 Ne5 Nd6+ Ka4 Bd5 R8a7 Ne8 Nf7 Nh3 Nf3 Qe6 Ng6 Nf4 N3g5 Ne2 Rd6 Re1 Bd7 Nb1 Na6 b8N Bc6 Na3 Ba8 Nc6 Rb7 Nd7 Nf8 Nde5 Ra7 Ng6 Bb7 Kc2 c3 Kd3 c2 b5 c1Q b6 c4+ Kd4 c3 Nb4 c2 Kc4 Qb2 Rb1 Bc6 b7 Qa2+ Kd4 Qc7 b8N Bb7 N8c6 Qe1 Nd8 g1R Ndc6 Rg3 Rf1 Nb8 Kc5 Qc3+ Bc4 Qd7 Rfe1 Na6+ Kb6 Qe7 Qe3 Qef6 Bd5 Qg7 Qe6 Qd3 Qe3 Nh6 Ng1 Qdc3 Qe7 Qf7 Qf6 Bc8 Rbc1 Bg4 Rb1 Bf3 Re4 Qg8 Ne2 Rah7 Re7 Qg7 Qe6 Nhf7 Bb3+
3Kb1NN/N5qr/NP1pk1R1/3pnb1B/RNq2r2/4q3/3PB2n/2rn2R1 b - - 0 1 legal: proof: a4 e5 f4 exf4 g3 b5 axb5 c6 c3 f3 Qb3 Qb6 Qa2 Qd8 Qd5 cxd5 b3 f5 Ba3 f2+ Kd1 h6 Nf3 f4 Ng1 f3 Bd6 Be7 Bf4 Bd6 Bg5 Bf4 gxf4 hxg5 Kc2 Ke7 Kd3 a5 Kd4 g4 Kc5 g5 h4 g3 e4 g4 b4 a4 e5 g2 f5 g3 f6+ Ke6 f7 a3 f8R a2 b6 Ra4 c4 Ra6 h5 Qe8 b7 Ra5+ Kb6 d6 Kc7 Rh6 b5 Rf6 c5 Rh6 b6 Ra6 c6 Qf7+ Kd8 Ra4 c7 Rh7 h6 Qg7 Na3 Nd7 b8N Ngf6 Na6 Rf4 Rg8 Ne4 Nb5 Nc3 Be2 f1Q Nh3 g1Q Nf2 g2 Na7 Nd1 Nd3 Qe3 Ndb4 g1N Rh4 f2 Rc1 Bb7 c8N a1R Ne7 Nf3 Rg4 Bc8 Rh4 Qf6 Rg6 Nh2 Rhg4 Rb1 Rc4 Rc1 Rg1 Qfh3 Re4 f1B Rc4 Qh4 Rd4 Rf7 h7 Qg4 h8N Rh7 Nc2 Bh3 Ra4 Qh4 Ncb4 Bf5 R6g5 Qg7 Ng8 Qe1 R5g3 Qf1 Rg4 Bg6 R4g3 Be8 Rg6+ Kf5 e6 Ne5 e7 Be6 Bh5 Qc4 Be2 B6d7 R6g4 Ke6 Rg5 Bg6 e8B Bf5 B8h5 Be8 Rg6+
4BN1B/k4K1B/1b2B1n1/1R3P1n/p1p1r1b1/2nP1NqB/2RNbb2/b2r4 b - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 d5 a4 dxc4 axb5 e5 Rh3 e4 Rh2 Nh6 Rh1 Ng8 b4 f5 d3 Bd6 Qd2 Bf8 Ra6 Be7 Re6 e3 Re4 exd2+ Kd1 Kf7 e3 Bc5 Ke2 Bf8 Rd4 Bb7 e4 Bc8 e5 Ke8 Re4 fxe4 Ke3 Kd7 Kf4 d1N Kf5 c5 g4 Kc7+ e6 Kb7 f4 h5 Kg6 a5 b6 c3 e7 c4 e8B a4 b5 e3 Bh3 e2 Bd7 e1B Kf7 c2 g6 h4 g7 Nc6 g5 Bf2 g6 Ne5+ Ke6 Nf6 g8B Nc3 g7 Qc7 Rh2 B8c5 Nf3 Nh5 Bb2 c1B Nbd2 Ng6 Bh7 Qb8 Ba1 Bb2 Kf7 Qd6 Be8 Bg4 f5 Qg3 g8B Rb8 Bf1 h3 Rg2 Ka8 b7+ Ka7 Rh2 Rc8 b8N Bb6 Nd7 Rc5 Rg2 h2 Nf8 h1B Rh2 Re5 Bh3 Re4 Rg2 Bg1 Rf2 Bg2 Re2 Bf1 Rg2 Bbf2 b6+ Ka8 b7+ Ka7 b8R Be2 Rh2 Bb6 Rh1 Bgf2 Rc1 Na2 Rc2 Bg7 Be5 Bf6 Bf4 Ba1 Be5 Nc3 Bg7 Bc7 Rb3 Bcb6 Rb5 Rd4 Bf1 Qc7+ Ke6 Ng3 Bgf7 Rf4 Bhg8 Rh1 Bh3 Nh5 Bh8 Rd1 Bh7 Rd4 Bfg8 Qg3 Bgf7 Nh4 Ke7 Re4+ Be6 Ng6+ Kf7
4B1N1/nr6/nknb2Qq/P1N3R1/Knb1rN1n/1N2q1Pp/N2p3N/1R6 b - - 0 1 illegal: No possible last move
R2r1Q2/n1bbkbbK/2n1q2R/p1P1R3/Rq6/1BRr1p2/1BR2PN1/5n2 b - - 0 1 legal: proof: b4 c5 a4 b5 d4 g5 h4 gxh4 Nc3 Bg7 Nd5 Bf8 Nf4 d6 bxc5 d5 e4 dxe4 Nd3 exd3 axb5 Bg7 Ra2 Bh6 Ra1 Bf8 Kd2 h5 Ke3 e5 Ke4 h3 g4 d2 c4 h2 g5 h4 c6 h3 c5 Bd7 b6 Bg7 d5 Ke7 b7 Qc8 c7 Nc6 Qf3 d1Q b8R Qa4+ Bc4 Qb4 g6 a5 Ne2 Na7 Re1 h1N Nf4 h2 Bb2 Rh3 Ra4 f6 Ng2 f5+ Kd3 f4 Ke4 Qa6 c8R Qe6 Rb6 Rb8 Rf8 Rd8 Re2 Rg3 Rc2 Rh3 Rf5 Ng3+ Kd3 h1B Bb3 Nf1 d6+ Ke8 Rh5 Ne7 Rg5 Nec6 Rf5 Bf8 g7 Rg3 g8R e4+ Ke2 e3 Kd3 e2 Re5 Rh3 Rg3 e1B Ra6 Bg7 Rb6 Bc8 d7+ Ke7 Ra6 Bc3 Rb6 Re8 d8R Bd7 Ra8 Bd4 Ke4 Rd8 Qe2 Bc3+ Qc4 Bd4 Rgc3 Rf3 Qe2 Rg3 Qh5 Rd3 Qf5 Be3+ Kf3 Bc1+ Kg4 Bd2 Kg5 Be3 Ne1 Bd5 Ng2 f3+ Kh5 Bf4 Ra6 Bf6 Kg6 Bg7+ Kh7 Nb8 Re1 Bc7 Rd6 Nbc6 Re3 Qe5 Rh6 Bf7 Ree2 Qe6 Re5 Bh8 Qg6 Bf6 Qg8 Bg7 Qf8+
K7/Pn4R1/bb2qbq1/RPR1R1Q1/2N2n1r/1n2R3/R1Np3p/1Brn2k1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 c5 h4 gxh4 d4 cxd4 c5 b6 Ba3 Nh6 cxb6 Ng8 b5 Bh6 Bc5 Bf8 Bb4 axb4 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 Kd5 Kf4 g4 e5 a4 h5 f3 Ke3 b7 Kf2 f6 h3 f7 h4 f4 b3 g5 b2 a5 d3 a6 d2 f5 h2 a7 h3 g6 e4 g7 e3 f6 e2 Ra6 e1B Ne2 Qb6 Qc2 d1N Qb3 Rh4 Qc3 Nc6 b8R Nd8 Qe5 Be7 f8R Ba5 f7 Bf6 Na3 b1N Nd4 Nd2 Ndc2 Nb7 Qg5 Nb3 Bd3 d6 Re1 h1Q+ Re4 h2 Re8 Qg2 f8R Kg1 Re5 Qe3 Kc6 d5 Ra4 Bb6 R4a5 d4+ Be4 d3 Nc4 d2 Rfe8 Qh3 Ra2 Qf5 R6a5 Qgg4 Bd3 Qg6 R8e6 N7c5 Bf5 Ba6 Rc8 Nb7 Re3 Rb8 R6e5 Ra8 Rc7 Rc8 Be4 Nh6 g8R Nf5 Rg7 Ng3 Na1 Ne2 Bb1 Nf4 Nc2 Rf8 Rc5 Rd8 Rce7 Rd3 R7e5 Rc3 Nb4 Rc1 Nc2 Qg2+ Kd7 Qf7+ Kc8 Qe6+ Kb8 Qgg4 Ka8 Qg2 Qh6 Qg6 Qg5+
1q1Q1R2/PR4p1/Rb1nn1R1/3qrr2/RqB1qp2/b2b1N1P/2R3K1/1Bk5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 Qf6 f5 Qd8 e4 f6 Nc3 Kd7 Nce2 Ke8 Nf4 Ke7 Bb2 exf4 e5 Kd7 e6+ Ke8 Be5 fxe5 Kf2 Ke7 a4 Kd6 d4 c5 h3 b5 e7 c4 e8B e4 f6 b3 a5 c3 f7 e3+ Kf3 e2 h6 e1Q a6 b4 a7 c2 h7 c1B Ra6+ Nc6 Qc2 b2 Qf2 b1Q Rh2 b3 Ra2 b2 Ba6 Qb4 Kg2 Nge7 Qd2 Qe4+ Nf3 b1Q Ra4 Ba3 Bc4 Bf5 Qd1 Rg8 h8R Nc8 Rh6+ Bg6 Bd7 Qda5 Be6 Nd8 Bf5 Ne6 Qd3 Be7 f8R Bd8 Qd1 Bh7 Rg6 Bb6 Rf7 Rf8 Rb7 Qee1 Bc2 Rf5 Qd3 Q1b3 Bb1 Qe4 Qd2 Ne7 Qd1 Re8 Qd2 Qac5 Ra6 Qc7 Qd3 Nc8 Ra4 Kd7 d6 Kc6 d5+ Kc5 d7 Qb8 d8R Re7 Rf8 Nd6 Qc3 Re8 Qf6 Qbd3 Qd8 Qd1 Be2 Qdd3 Bf1 Kc4 Rff6 Kb3 Be2 Nf7 d6 Kb2 d7 Qdd5 Ba6 Kc1 Bc4 Neg5 Rc6 Ree5 Rcd6 Ne6 Rc6 Bg1 Rca6 Bd4 Qh4 Nd6 d8R Bb6 Rf8 Bg8 Qd8 Bf7 Rh6 Be8 Rg6 Bb5 Bb3 Be2 Bc4 Bd3 Kh1 Rf6 Rb2 Rf7 Kg2 Rff5 Rc2+
q2q3N/3b1N2/1pkN1q2/NbP2qpN/1P3N2/6rR/q1Bn1Q1K/1B2b1r1 b - - 0 1 legal: proof: d4 c5 e4 f5 exf5 cxd4 a4 g5 a5 b6 a6 Nc6 Ke2 Na5 Ke1 Nb7 axb7 Bg7 Qg4 Bh6 Qd1 Bf8 b4 h6 g4 Kf7 f4 Qe8 f6 Qd8 f5 Ke8 Bf4 Bg7 Ra3 Bf8 Rg3 gxf4 g5 Rh7 g6 Rh8 Rg5 hxg5 Kf2 e5 Kg2 a5 b8N d5 h4 e4 c4 f3+ Kh2 f2 c5 d3 h5 d4 g7 e3 h6 a4 h7 a3 Kg3 d2 Rh2 d3 Rh3 e2 Kh2 e1Q Qg4 d1B Nc6 Kd7 f7 a2 f6+ Qe6 Qg2 a1Q Qf3 d2 Bd3 f1Q Ne2 Qea2 Na5 Ba4 Qf2 d1Q Ng3 Bd6 Nd2 Qdc2 Ne4 Bb5 f8N+ Kc7 f7 Nf6 g8B Bcd7 Ng6 Qcb1 Nd2 Ne4 Ndc4 Nd2 f8N Qbb2 Nf4 Qbf6 Bb1 Ra7 Nb7 Ra3 Ngh5 Kc6 Ne6 Rg3 Bf7 Qd3 Bg6 Qdf5 Bc2 Be5 Ncd6 Bc3 Bb1 Rf8 h8N Qaa8 Bh7 Q1a2 Bg6 Q5e5 Bgc2 Qef5 Nc7 Re8 Ndf7 Re1 Ne8 Reg1 Ned6 Ne4 Ne2 Be1 Nef4 Nd2 Na5+
R1nRbb1K/2p1P3/b1Rn4/2RN2Q1/3Rr1bn/pq2q1kP/2B2b2/3N3R b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Bh3 f4 Bg2 Qd5 Bf1 Qd8 b3 a5 Ba3 h6 Be7 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 Kd7 e4 Kd6 d4 g6 f6 c3 h3 g4 b4 g5 f7 c2 b6 c1Q d5 Ke5 b5 a4 d6 a3 b7 Na6 b8R Rh4 b6 Nc5 b7 Ne7 d7 Qc4 Qb3 Qe8 Qb5 Qb3 d8R Bd7 Ne2 Nc8 Nec3 g3+ Kg1 g4 Ra8 g2 Kf2 g1N b8R Be6 Nd5 Nb7 Bd3 Nbd6 Rb6 Bd7 Bc2 g3+ Kf1 f2 Kg2 Bf5 Rc6 Nf3 Nbc3 Bg4 Nd1 Qe6 Rc1 Qh6 Kf1 g2+ Ke2 f1B+ Kf2 Bc4 Ra4 Be2 Rd4 g1B+ Kg2 Bf2 Qc5 Bg7 f8R Ba6 Rh8 Bf8 Qa5 Ke6 e5 Bb5 Rc5 Be8 Rc6 Ne1+ Kh2 f3 Qd2 Ng2 Qg5 Be3 Kg3 f2 Rg8 f1B Rh8 Ba6 Rg8 Ne1 Rc5 Bf2+ Kf4 Nf3 Rc6 Qg6 Rc5 Rh7 Rc6 Nh4 Rh8 Re7 Rc5 Kf7 e6+ Kg7 Rg8+ Kh7 Ke5 Qgd3 Kf6 Qe4 Qe5 Kh6 Qf4+ Kh5 Rh8+ Rh7 e7 Qee3 Qg3 Nhf5 Qf4 Kh4 Qg5+ Kg3 Rc6 Rf7+ Kg6 Rf6+ Kh7 Nh4 Rg8 Rf4 Kh8 Rf7 Bg6 Rf5 R1c5 Re5 Bc2 Re4 Rg6 Bc4 Ra6 Bf1 Ra8 Ba6 Re6 Nc4 Rb6 N4d6 Rbc6
r3qR2/R4B1p/2b2r2/2R1R2K/p3N1R1/1bN1Pn1P/r1rk2r1/bb3RQ1 b - - 0 1 legal: proof: d4 c5 b4 e5 e4 exd4 a4 b5 axb5 cxb4 Be3 g5 Ra2 b3 Bf4 gxf4 Be2 Nc6 Bf1 Nb4 Ra4 Nd5 Ra1 Ne3 fxe3 Ba3 Qd2 Bc5 Qd1 Bf8 Ke2 Ke7 Kf3 Kd6 Kg4 Kc5 c4 Kb4 e5 d5+ e6 a5 g3 f5+ Kh5 b2 c5 d3 e7 d2 e8R d4 h3 a4 g4 f3 c6 f2 g5 f4 c7 f3 b6 d3 g6 Bg7 b7 Bd7 c8R Nf6+ Kh4 Ne4+ Kh5 Ng5 Nc3 b1B Rc7 Rg8 Kh4 Bc6 Qc2 d1B Ne4 d2 Qc1 Bb3 Re5 d1R Bc4 f1R Kh5 f2 Ne2 Rd2 N2c3 Qe8 Bf7 Rc2 Rd7 Bh8 g7 Nf3 Rc7 Re1 Rf1 Ree2 Qe1 Ra2 Qd1 Rec2 b8R+ Bb7 Rd8 Bc6 Rdd5 Kc4 Rc5+ Kb4 Rg1 f1R Rg4 Rff2 Rce7 Rg2 Qh1 Rf8 g8R Bf6 Ra7 Bg7 Bg6 Rf6 Qg1 Bh8 Rf8 Bg7 Rb5+ Kc4 Rbc5+ Kd3 Ng3+ Kd2 Bf7 Rf4 Red5+ Bd4 Re5 Rf6 Nge4+ Kd3 Nf2+ Kd2 Nb5 Rc1 Rg6 Bd3 Rg4 Rc3 Rc1 Bb1 Rf1 Rcc2 Ne4+ Kd3 Ng5 Ba1 Nc3 Kd2 Nge4+
N2N4/N3b2p/1RPbp2P/6B1/R1Br1N1N/r3rq2/1Kb3r1/2Brn1kb b - - 0 1 legal: proof: e4 c5 b4 d5 f4 dxe4 a4 b5 axb5 cxb4 f5 g5 f6 e6 Qe2 Kd7 Qe3 Nc6 Qf4 Nce7 fxe7 gxf4 Kd1 Kd6 e8N+ Kd5 c4+ Kd4 Kc2 a5 h4 f5 g4 f3 c5 f2 d3 b3+ Kb2 a4 b6 e3 b7 f4 b8B e2 g5 e1R g6 f3 g7 Nf6 g8N Nh5 Bd6 Re3 Bg2 f1R Ne7 f2 Bf3 Rd1 Bd5 f1R Nd2 a3+ Kb1 b2 Bf4 Bb7 Bc4 Qd5 Nc8 Rf2 Nc7 Be7 Bg5 Qf3 Nh3 Nf4 h5 Rg2 h6 Rd8 Na7 a2+ Kc2 b1B+ Kb2 Be4 c6 Bc2 Rf1 Rg4 Rf2 Ng2 Nf4 Ne1 Rb1 Rd7 Rh2 Rg2 Rh4 Rc8 Na8 a1B+ Ka2 Bc3 Rb6 Bcb4 Kb2 Bbd6 Rg4 Rf8 Rh4 Rf5 Rg4 Ra5 Rh4 Ke5 d4+ Kf5 d5 Raa3 Rg4 Ke5 Rh4 Kd4 Rg4 Ree2 Rh4 Ke3 Rg4 Kf2 Rh4 Bb8 d6 Ree3 Rg4 Rd8 d7 Bbd6 Rh4 Kg1 Rg4 Rb8 d8N Rc8 Nb3 Rc7 Nd4 Rd7 Rh4 Bc7 Nf5 R7d4 Rg4 Bcd6 Nh4 Qg3 Nf5 Rf2 Ba2 Rda4 Nh5 Bh1 Nh4 Rg2 Rd4 Qf3 Nf4 Rad3 Rdb4 Raa3 Bc4 Rd4 Ra4
1k1n2r1/1rrn2R1/2n3N1/P5Pq/1B1R1b2/Rn1p1r2/q2QNp1R/1RRK4 b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g3 e5 fxe5 cxd4 Qd3 g6 Qd2 Ra6 Qd1 Ra8 g4 b6 Bh3 Ba6 g5 Bb7 Bf5 Bf3 h3 Bg4 hxg4 gxf5 e4 d5 a4 Kd7 c4 Kc8 a5 h5 g6 d3 e6 f4 g5 f5 c5 d2+ Ke2 h4 g7 b5 e5 b3 c6 b4 e7 f3+ Kf2 h3 e8R f4 c7 d4 e6 h2 e7 b2 Qe2 d1Q Qe3 d3 Nh3 b3 Re1 h1N+ Kf1 f2 Qe2 Rh7 Nc3 b1N Qc2 b2 Na2 Nd7 Bd2 Nh6 g8R Qh5 Rd1 Nf7 Rh8 Ng3+ Kg2 f1R Nc1 Ne2 Bb4 Rf3 Ra3 Nd4 Qd2 Nc6 Ne2 Bg7 Reg8 Be5 Rg7 Qg8 e8R+ Nfd8 Re1 Qa2 Reg8 Kb7 c8R Ka7 Rc7+ Kb8 Re8 Bd6 Re4 Be5 Rd4 Bd6 Qc2 Nd2 Rb1 Nb3 Qd2 Be5 Nf2 Bd6 Kf1 Be5 Ke1 Bd6 Rd1 b1R Ng4 Rc1 Ne5 Rc5 Ng4 Rb5 Rb1 Rb7 Kd1 Be5 Re7 Rg7 Rh7 Raa7 Rh6 Rg8 Rg7 Rh3 Rf6 f3 Rf8 Rb5 Ne3 Ne7 Rc6 Rc7 Nf5 Rbb7 Rcc1 Nc6 Nh4 Bg3 Rff4 f2 Ng6 Bh2 Rfe4 Rf3 Rh4 Bf4 Rh2
1KRR4/2B1nqB1/RRpp1br1/5nRr/2b3p1/3qb2P/1P3Br1/4NNk1 b - - 0 1 legal: proof: d4 d5 g4 h5 gxh5 b5 c4 dxc4 a4 Bh3 axb5 Bc8 e4 f5 d5 Be6 e5 Kd7 d6 Ke8 Bg2 Bc8 Be4 fxe4 d7+ Kf7 Qd6 exd6 Ra2 Ke6 Ra1 Ke7 Kd2 Ke6 Ke3 Kf5 Kd4 Kg4 Kd5 g5 f4 a5 b6 a4 h3+ Kg3 b7 Kf2 e6 a3 h6 a2 h7 e3 f5 g4 e7 e2 e8R e1R f6 c3 f7 c2 Re4 Re2 Re5 Nh6 Nf3 Qf6 d8R Nf5 Ne1 Be7 f8R Nc6 b8B Ba6 Nd2 Ra7 Rh2+ Kg1 Nf1 Rg2 Rg8 Qf8 Rg5 Bf6 Re7 Rg8 h8B Rg6 Bg7 Rb7 Ke6 Qf7+ Kd7 Bc4 Kc8 Rb5 Re3 Rc5 Rb3 Nce7+ Kb7 Ra5 Rb6 c6 Bc7 Rb5 Kb8 Rd5 Bf4 c1B Bg3 Be3 Bh4 Rg3 Rd2 Rg2 Rd3 Rc5 Ra3 Rb5 Ra6 Re5 Rd1 a1Q Bg3 Qa3 Ra1 Qd3 Ra8 Re6 R1a6 Rh6 Ka7 Rh5 Rac8 Be5 Bh4 Rg6 Kb8 Bf6 Bf2+
1q2b3/2rB2p1/3nB1RB/2p2Q1P/4Bqr1/Br3nBK/2RNp2P/1nbk4 b - - 0 1 legal: proof: g4 d5 e4 a5 c4 e5 b4 h5 gxh5 axb4 d4 f6 Nd2 f5 cxd5 exd4 e5 Qd6 Ne4 fxe4 Bg5 Qd7 Bc1 Qd8 a4 Kf7 f4 b5 Kf2 b3 Kg2 e3 d6 Ke6 a5 Kd5 a6 Ke4 d7 b4 e6 d3 a7 b2 e7 b1R e8B e2 f5 d2 f6 Ke3 f7 b3 Qe1 b2 Kg3 Nc6 Ra5 Nf6 Ra6 Ba3 f8B Ne5 Kg2 c5 Nf3 Ne4 Kh3 Nd6 Qf2+ Kd3 Rg1 Kc2 Rg6 d1Q Nd2 Nf3 Ra5 Rb8 a8B Rb3 Ra4 Qe1 Rc4+ Kd1 Be4 Rh6 Bg2 Qf1 Rc2 Rb4 Bf5 Rg4 Be6 Bb7 Be7 Bc6 Bh4 Qb8 d8B Rh8 Bde7 Bb5 B8d7 Rc8 Bg3 Rc7 Bg5 Ba4 Bc8 Bc6 Bh6 Be8 Qe3 Qf2 Qe5 Qe3 Qf5 Qf4 Bed7 Ra1 Bh1 b1N Be6 Bb2 Bcd7 Ra3 Bg2 Rb3 Bh1 Ba1 Ba3 Bb2 Bg2 Bc1 Bh1 Ne5 Bhd5 Nf3 Be4
4b2r/2qrP3/p1b2K1N/p1p1BP2/N1R1b3/B4n2/n2Bq1N1/RB1k1Bn1 b - - 0 1 legal: proof: c4 d5 h4 e5 d4 g5 a4 g4 a5 b6 cxd5 bxa5 d6 f5 d5 Bg7 Qd4 exd4 Be3 Bh6 Bc1 f4 g3 Bg5 hxg5 fxg3 Kd2 Kd7 Kd3 h5 Ke4 c5 Kf5 d3 e4 a6 f4 g2 b4 g3 b5 d2 g6 d1B e5 h4 b6 h3 g7 h2 b7 Nc6 b8B Ba4 Bc7 Ra7 Nf3 g1N Ne1 g2 Nc3 Nge7+ Kf6 Bb7 g8B Nd4 f5 Ndf3 Ba3 Bbc6 Bb8 Qc7 e6+ Kc8 d7+ Kb7 d8N+ Kb6 d6 Nd5+ Kg6 Rb7 d7 Nb4 Kf6 Na2 Nf7 Be4 d8B Be8 e7 Kc6 Na4 Kd5 Rc1 Kd4 Nh6 Ke3 Rc4 Kd2 Bd5 Kd1 Bg8 Qf4 Be5 Rd7 Bdc7 Qe3 Bc3 Qe2 Bg3 Nh3 Bd2 g1Q Bd6 Qg3 Ng2 Nhg1 Bb8 Bc6 Bd5 Qc7 Be4 Nh3 Rg1 h1B Bb1 Ne5 Ne1 Bhe4 Ng2 Nf3 Rh1 Qd8 Bg3 Nhg1 Be5 Qc7 Bd3 Nh3 Nh4 Qf2 Bg2+ Qe1 Bc2+ Ke2 Rg1 Qf2 Ra1 Nhg1 Bb1 Kd1 Bf1 Qe2 Ng2
rb1k3R/3r1n2/PRpR4/b1KP1nNp/NRb2n1R/B5p1/2N1q1B1/7n b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 f5 b4 axb4 Qb3 g5 Qg3 f4 h4 gxh4 e3 hxg3 exf4 Ra5 f5 Ra8 Ke2 e5 Kd3 h5 Kc4 b6 a4 c6 f4 b3 d4 b2 g5 e4 f6 e3 f7+ Kd7 d6 e2 f5 e1B a5 b5+ Kc5 b4 a6 b3 f6 Qe8 g6 Kd8 g7 Nh6 g8R Qe2 Na3 b1N Rg4 b2 Nh3 Nd2 Bg2 b1N Nc2 Nf5 Ng5 Be6 Rhh4 Rh7 Ba3 Bc4 d5 Nc3 Rb1 Rg7 Rb6 Nd7+ Kb4 Ne5 Kc5 Be7 f8N Nf7 Nd7 Bf8 Rb4 Rh7 Nb6 Bg7 Na4 Nde4+ Kb6 Nf2 d7 Bd2 Kc5 Nh1 Rb5 Bf4 Rb6 Bb8 Rf4 Qg4 Re4 Ne2 Rd4 Nf4 Re4 N7h6 f7 Bc3 Rd4 Qe2 f8R+ Qe8 Rf6 Ba5 Rd6 Qe2 Re4 Re7 Rd4 Nf7 Re4 Kc7 d8R Rd7 Rg8 Ba2 Reb4 Bc4 Rg7 Kc8 Rh7 Kd8 Rh8+
bB1Bk1Rq/2Kp4/B1P1rpN1/2r3pr/2bP2B1/2nq1BQ1/1B2q3/b6N b - - 0 1 legal: proof: a4 g5 f4 f5 fxg5 b5 b4 c5 Nc3 cxb4 Nd5 b3 Nf6+ exf6 Bb2 b4 Ba3 Qe7 Bc1 Qd8 g4 h6 g6 Na6 g7 Nc7 Kf2 Bc5+ Ke1 Nb5 axb5 Bf8 g5 Bd6 g6 Bc5 Ra6 Rh7 Rd6 Rh8 Rd4 Be7 Rg4 Bf8 Rg5 hxg5 Kf2 a5 Ke3 b2 Kd4 b1B Kd5 a4 h4 f4 d4 f3 c4 f2 e4 a3 c5 a2 e5 a1Q e6 b3 h5 b2 e7 Qa3 Kd6 Rb8 h6 Qa8 c6 Rb7 b6 Qa5 h7 Qc3 Ba6 f1R Nh3 Bc2 Qg4 b1Q Bb2 Qb3 Nf2 Qf3 Qg3 Ra7 b7 Qc3 b8B Qd1 Rh3 Bb7 Nh1 Ba8 Rh5 Nh6 g8B Ng4 g7 Nf2 Bd5 Bd3 g8N Qe2 Bf3 Bc4 Rh6 Rb7 Rg6 Rb5 Rg7 Rc5 Rg6 Kf7 Bg4 Qe8 Kc7 Nd1 Bf3 Qcd3 Bg4 Bh6 Bf3 Qf8 Bg4 Qg7 e8B+ Kf8 Bf7 Nc3 Bd5 Ke8 Ne7 Re1 Bg2 Qg8 B2f3 Bf8 Rg7 Qed2 Ng6 Re6 Bg2 Be7 B2f3 Qf8 Rg8 Q2e2 Qg2 Rf5 Qh2 Bb4 Qg3 Rc5 Rg7 Bd5 Ba3 Na2 Bc1 Bc4 Ba3 Rg8 h8B Bc3 Bc1 Ba1 Bb2 Qe7 Ne5 Rf8 Ng6 Rf7 Rg8+ Qf8 Bg7 Rfe7 Rh8 Nc3 Bh6 Qg8 Bf8 Rh7 Be7 Rh5 Bd8 Qf8 Rh7 Qg8 Rg7 Qh8 Rg8+
Nr3BB1/P1N2RpK/P1qnRNp1/1qnnpB2/2N3r1/2bq4/1r6/2N1k3 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 f4 fxe4 g4 a5 bxa5 b6 f5 Ba6 f6 Be2 Qd2 Bc4 Qg2 Be6 Qg3 Bf5 gxf5 Qc7 Qg4 Qd8 Qg6+ hxg6 Ke2 Kf7 h4 d5 a4 e5 c4 b5 a6 d3+ Ke3 b4 a5 b3 c5 b2 c6 d2 h5 d1R h6 Re1+ Ne2 Rh7 c7 Ra7 c8B Rd7 a7 Rd6 Nc3 b1N Ba3 Qd7 Nb5 Rh8 h7 Ne7 Nc7 Na6 Na8 Nc5 a6 Nc3 Rb1 Rd1 Rb6 Rd2 Nc1 Qc6 Bc4 Nb5 Rf1 Rb2 Rf4 Rd7 Rf3 Nd6 Rf1 Rg8 h8N+ Ke8 Nf7 Rd8 Bb7 Kd7 Bb3 Rb8 Ba2 Rh8 Bc8+ Ke8 Be6 Rh4 Bb1 Rg4 Rf4 Ndb7 Nd6+ Kd8 Bg8 Kd7 Nc4 Nd6 f7 Qb5 f6 Ke6 Bc2 d4+ Kf2 e3+ Kf3 Kd5 Bf5 d3 Bb4 Nde4 Re6 Kd4 Ba3 Nd5 Bb4 Bd6 f8N e2 f7 e1Q Nh7 d2 f8N Bc7 Nf6 Ba5 Ba3 Nd7 Bd6 Kc3 Ba3 Nd6 Bc5 Nb7 Be7 Qf1+ Ke4 d1Q Rc6 Kc2 Ne6 Rb1 Nh5 Qg1 Bh7 Bc3 Bf8 Rb2 Nec7 Qgb6 Be6 Rg1 Rf6 Qd2 Bf5 Kd1 Rcd6 Nb4 Rc6 Nd3 Rcd6 Nd7c5+ Kd5 Rg4 Rc6 Nb3+ Ke6 Nb3c5+ Kf7 Nf4 Kg8 Ke1 Rf7 Nd5 Re6 Qd3 Nf6 Q6c6 Kh8 Nd6 Bg8 Qb4 Kh7 Qb3 Nab6 Qbb5 Nba8
NbrB4/B5K1/2qpb3/n2Q1B2/1B3P2/1Bp1RN2/k1p1P1B1/1bq1b1qn b - - 0 1 illegal: No possible last move, all moves rejected
2B1RBq1/4p1RN/1rrppPK1/1pr2nb1/1P1qB1N1/6N1/1b5k/4NnN1 b - - 0 1 legal: proof: g4 c5 a4 h5 gxh5 b6 d4 cxd4 a5 Bb7 a6 Rh7 axb7 Rh6 e4 Rh8 e5 a5 b4 a4 e6 fxe6 Qf3 Qc8 Qd5 Qd8 Qb3 axb3 Ke2 Kf7 Kf3 Kf6 Kf4 b5 h4 d6 c4 d3 c5 b2 h6 d2 c6 d1R h5 g6 c7 Ra6 c8B Rh7 Bd3 Qd7 Nd2 b1Q Ndf3 Qd8 Ne1 Rb6 Be4 Qb2 Ra8 Nd7 b8N Nc5 Nc6 Nb3 Nd4 Nd2 Nf5 Qd4 Ng3 g5+ Kg4 Rg7 f4 Nf1 f5 Ke5 h7 Qe8 Bd2 Rc1 h8N Rcc6 h6 Qf7 h7 Nh6+ Kh3 g4+ Kh4 Rg8 f6 Rg5 Rh2 Rf5 Rg2 Qg8 Bg5 Bg7 Kh5 Bf8 N3e2 Bg7 Kg6 g3 Bc1 Rh5 Bd2 Nf5 Bh6 Nd2 Bb7 Nf1 Re8 N5e3 Bc8 Nf5 Rh2 g2 Ng3 Bf8+ Bg7 Kf4 Nf7 Kg4 h8N Kf4 Ng5 Kg4 Ng1f3 g1B Nh7 Bf2 Rg2 Kh3 Rg1 Be3 Nf7 Bc1 N7e5 Bb2 Nfg5+ Kh2 Nh3 Rb8 Nh1 Rb7 Rg3 Rbb6 Ng1 Rh3 Rg5 Rhc3 Ng3 R3c5 Kh5 Qd5 Bh6 Qd2 Rg7 Qd4 Kg6 Qh8 Rf7 Bg7 Kg5 Qg8 Kh5 Bh8 Bf8 Bg7 Kg6 Bh6+ Rg7 Bg5 Ng4+
2bbK3/n1p3pN/1rN4b/q1Np1B1r/p1PR1N2/4Q2q/2N1P2N/3B2kq b - - 0 1 legal: proof: d4 f5 b4 b5 g4 fxg4 a4 h5 axb5 Nc6 Bf4 Ne5 dxe5 h4 Bg3 hxg3 Ra6 Kf7 Re6 Ke8 Rd6 exd6 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 Kf4 h4 a5 c4 g2 b6 g3 h5 Nh6 b5 Qh4 e6 Nf5 b7 Qg5 b8N Qg6 e7 Nh6 e8B Nf5 h6 Qf6 b6 Ra7 b7 Qe7 h7 Qh4 Na6 Nd4 b8N Rb7 Qb3 Nb5 Nc5 Na7 Nc6 Rb6 Nf3 g1Q Nh2 g2 Na3 Be7 Nc2 Qh3 f3 Kg3 f4+ Kf2 f5 Bg5 f6 a4 f7 Bd8 f8N Rb7 Bg6 Rb6 Ke4 d5+ Ke5 d4 Qa3 Rg8 h8N d5 Nh7 d3 Bf5 d2 Ng6 d1Q Nf4 Rh8 Qb3 Bb7 Ke6 Qe1 Kf7 Qa5 Bd3 Bc8 Bg6 Re8 Qc3 Re5 Bd3 Rh5 Ke8 Kg3 Qe5 Qf2 Qe6 g1B Qe3+ Qf3 Bf5 Bf2 Bg2 Be1 Rf1 Bd2 Rd1 Bc1 Rd4 Bd2 Qe7 Kf2 Bh1 Kg1 Qe3+ Qf2 Bhe4 Bc1 Qf3 Qfg2 Qe3+ Kh1 Na1 Bf6 Qc3 Rb3 Nfd3 Bh6 Nf4 Kg1 Bc2 Qh1 Bd1 Rb6 Nc2 Bd8 Qe3+
6r1/bPB1B2r/RR1R4/b1p4p/B1R3q1/1Kpb1p1k/pP3Rnr/2N3N1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 g5 axb5 d5 f5 dxc4 g4 Nh6 h4 Nd7 h5 Ng8 Qf3 Ne5 Qf4 gxf4 g5 Ng6 hxg6 Qd7 Nh3 Qd6 Ng1 Qd8 Kd1 Kd7 Kc2 e5 d4 a5 g7 h5 f6 Ke6 f7 Kf5 g6 Kg4 d5 c3 b6 f3 d6 e3 d7 a4 b7 e2 Bd2 e1B Rh2 a3 Bf4 Ne7 g8R Nf5 g7 Ne3+ Kb3 Qh4 d8R Rh7 Rf2 Bf5 Ne2 Bd3 Nd2 Bc5 f8B Ng2 Be7 Kh3 Rd6 Ba7 Rc8 Qg4 g8R c6 Rgg6 a2 Rc1 Rb8 Rc7 Rbh8 Rc8 Rg8 Ra8 Bb6 Ra6 e4 Rd1 e3 Rd4 Bc7 Rc4 Ba5 Bc7 c5 Ne4 Bd2 Nc1 e2 Ng3 e1R Nge2 Bf4 Rgb6 Bd6 Bcd8 Bb8 Bc7 Bb1 Rdd6 Ba7 Ng3 Re6 Be2 Bd3 Bd1 Re1 Nge2 Rg1 Ka3 Re1 Ba4 Rh1 Kb3 Rh2 Ng1+
2r1B1qB/2nn4/6p1/1Bn1nB2/2Rq1PP1/b1rq1R1B/Q1qN2b1/1B2K1nk b - - 0 1 illegal: No proof kernel
3rn1Bq/N1p3qq/R2Nrbbb/B1P5/kRn5/NnP4K/q3B3/B2B2b1 b - - 0 1 illegal: No proof kernel
Bqk4R/p2q1nb1/1r1N1b2/1nN1N2b/Pr1b1Nr1/1n2r1RN/2Q2P2/1K1N4 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Bb2 f6 Bc3 fxg5 Be5 g4 Bg3 hxg3 d4 Kd7 Kd2 b5 Kc1 g5 h4 e5 a4 g2 c4 g3 d5 e3 h5 b4 d6 b3 h6 e2 h7 e1B Bd3 b2+ Kc2 g4 Nh3 g1Q Nd2 b1R Qe2 g2 Qf3 e4 Qg3 e3 Qf4 g3 Be4 e2 Nf3 Rb6 Qc1 Bg7 Ra3 Qh2 Rc3 Bb7 c6+ Kc8 c5 g1R c7 g2 Ne5 Qd7 Rg3 Bc3 Qb2 e1N+ Kb1 Nc6 Qb3 Bb2 Qc2 Nh6 Bd5 Rd8 h8N Na5 Nhg6 Rb8 Ngf4 Nb3 Bf3 Ba6 Ba8 Rh8 Ned3 Bbf6 Nb2 Be2 Nd1 Qe8 Qd3 Bh5 Qc2 Kd7 c8N Nf3 Ne7 Nfd4 Neg6 Nf7 c6+ Kc8 c7 Nb5 Ne5 Qd7 Qg6 Re1 Qc2 g1B Rd3 Qg4 Nfg6 Rd8 Ng5 Ra6 Nc4 Na3+ Ka2 Rb4 Rf3 Kd7 c8N Nb5 Kb1 Rb6 Rc3 Qe5 Rh4 Qe8 Nh3 Bh2 Rf3 Bhe5 Rg3 Bd4 Ngf4 Bg6 Rh8 Bh5 Qg6 Qg8 Qc2 Rf8 Ne5+ Kd8 d7 Re3 Qf5 Bh6 Nd6 Kc7 d8N Kb8 Qc2 Qd7 Rh7 Qh8 Nde6 Rg8 Nc5 Rg4 Qd2 Kc7 Qc2 Qb8 Ne8+ Kc8 Rh8 Bhg7 Nd6+
2n1qrnb/q3Rr1n/1Pb1p2N/bNR2n2/1pNB4/nP4N1/kNB2K2/3R4 b - - 0 1 illegal: No proof kernel
r2bbb2/1rR2pn1/Q4q2/P2K3N/RBnpr2R/n1RPR1R1/4k2r/1B1q4 b - - 0 1 legal: proof: f4 a5 g4 c5 b4 cxb4 f5 h5 gxh5 b3 Nc3 e6 Nd5 exf5 Nb4 axb4 Ba3 f4 Bb2 Ke7 Bc1 Ke8 Kf2 Ke7 Kf3 Ke6 Ke4 b5 h4 g5 a4 b2 c4 b1N h6 g4 h5 f3 c5 f2 a5 b3 c6 b2 c7 b4 h7 b3 h6 g3 Rh3 g2 Rc3 Qf6 Nh3 g1B Ra4 Ne7 Nf4+ Kd6 e3 Na3 Bd3 f1Q Nh5 b1R Qe2 b2 Bc2 Bh2 Qa6+ Nbc6 d3 Qd1 Bd2 Nf5 Be1 Rc1 Bb1 Ng7 Bd2 Bb7 c8R Bf4 Rc7 Bg5 Be1 Ke6 Bd2 d6 Be1 Ne5+ Kd4 Kf5 e4+ Kg4 Bd2 Bc8 Kd5 Nec4 e5 Kf3 e6 Bh4 e7 Bd7 e8R Bg5 Re2 Be8 Rg2 Bh4 Rg4 Ke2 Rg3 Rc2 Be1 Rg8 h8R Rd2 Ba2 b1R h7 Rb7 Bb1 Qg6 Bf2 Bd8 Bc5 Qf6 Bb4 Ke1 Rg4 Rh2 Rg3 Ke2 Rf3 Nf5 Rg3 Rg4 Rg8 Rgh4 Rf3 Re4 Rgg3 Ng7 h8R Re5+ Kd4 d5 Rh7 Re7+ Kc5 d4 Kd5 Qb6 Nf6 Re6 Rh4 Re4 Nh5 Qf6 Re3+
KN2q2n/N1p2Nrb/BBP1Nq1b/R1NP4/n1k1p3/1n3b2/B2q4/Rn3r2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 g5 e4 gxf4 g5 dxe4 Qg4 hxg4 Ke2 Kd7 d4 Kd6 b4 Kd5 h4 f5 c3 e5 b6 a5 h5 f3+ Ke3 f2 g6 g3 b7 f4+ Kd2 e3+ Kd3 e4+ Ke2 g2 g7 a4 h6 a3 b5 a2 b6 Qe8 h7 Bf5 Nf3 g1Q Nbd2 Qgg6 Ng5 Nh6 g8B+ Nf7 Rh5 Qf6 Nb3 Kc4 Nc5 Bh6 Nge6 Na6 b8N Bg6 b7 f3+ Kd1+ e2+ Kc2 Bf5 Nc6 Rd8 b8N Rd7 Be3 Bg6 Nb3 Nc5 Na7 Na4 Ra5 Re7 Nbc5 Rd7 Bh3 f1N Bg1 Nd2 Bf1 Nb1 Bf2 Kd5 Kb3 e1Q Kb4 Qd2 Kb5 Bf5 Be3 f2 Ka6 Bg6 Be2 f1B Kb7 Bg2 Ba6 Bf3 Ka8 Re7 Bb7+ Kc4 Bg1 Ne5 Bf7 Rg8 h8N Bh7 Bf2 Rf8 Ba6+ Qb5 Bg8 Ng6 Nf7 Nh8 Nd7 Kb3 c4 Kb4 Ndc5 Qe8 Nb3 Rd7 c5 Kc3 c6 Kb4 Nfd8 Rg7 Nbc5 Kc3 Nf7 Kb4 Bb7 Kc4 Ba6+ Kc3 Nfg5 Nf7 Nb3 Bg2 Nd8 Nh8 Bgc4 Qf3 d5 Qff7 Bb6 Qg6 Nge6 Rf1 Nf7 Bf3 Nbc5 Qf6 Nd7 Na3 Rb1 a1N Ba2 Nb3 Ra1 Nb1 Ndc5 Kb4 Bc8 Kc4 Ba6+
1kr3Nq/6p1/5RN1/1p1q2PN/1R3PNn/N1n1b1N1/1rb4r/KnB1Qqr1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 g5 fxe4 Be2 Ra6 Bf3 Ra8 Bg4 hxg4 f4 Kd7 a4 c5 h4 Kc7 d4 e5 Kd2 b5 Kc2 c4 Kb2 c3+ Ka2 e3 h5 e4 h6 g3 h7 e2 a5 e1Q a6 g2 a7 e3 Na3 c2 Rh6 e2 Rb1 b3+ Ka1 Bc5 Rf6 Qh4 Qe1 Nc6 d6+ Kb7 d5 Nh6 d7 Nd4 d6 Nhf5 Rb2 Qh3 Rb1 Nh4 Rb2 Rb8 a8N Qf5 Rb1 Qd5 Nb6 Ra8 Rb2 Kb8 Rb1 Qe8 d8N Bf5 d7 Ra4 Rb2 Rb4 Nf7 Qf8 d8N Be4 Qd2 e1Q Ne5 Ne2 Ng4 Be3 Nf7 Nc3 Nfh6 Qf1 Ne2 g1R Qe1 Bd3 Ng3 Qfg8 Bd2 c1R+ Rb1 Rc2 Bc1 Rh2 Rb2 Bc2 Nd7+ Kb7 Rb1 Qa8 Rb2 Rc8 h8N Kc7 Ng8 Kb7 Nf8 Kb8 Rb1 Qd8 Nh7 Qad5 Rf5 Qe8 Nhf6 Qh5 Ng6 Qh8 Nc4 Na4 Nfh5 b2+ Ka2 Rb3 Rf7 Rb4 Rf6 Nc3+ Ka3 Ne2 Ka2 Rb3 Na3 Qd6 Bd2 Qd5 Rd1 b1N Ka1 Rb2 Bc1 Nec3 Rd4 Rgh1 Re4 Rg1 Rb4
1nB1Nr2/B7/5Nk1/K1b1R1qB/4R1pq/p1r1NB2/bb1b1nPP/B2n2q1 b - - 0 1 illegal: No possible last move
1R2q2k/Kb1N3r/p1Pb4/nq1NRrq1/Pbp1R3/6bB/2BB2B1/2rB2n1 b - - 0 1 illegal: No proof kernel
r4Nrb/rB5b/q5pp/1P1Q1B2/3n4/nBqq1R1B/B2rbkPK/2B1N3 b - - 0 1 illegal: No proof kernel
2b3r1/n1B2RNB/1b1p1B2/5bQr/1r2PbB1/NB1q1k1p/b1B1b2P/5n1K b - - 0 1 illegal: No possible last move
1nn2B1R/2b1N1R1/r4b2/1qp4n/r4P1B/1RP1N3/1R1npkbr/RbK4B b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 e5 d4 e6 fxe6 Qe2 e5 Qf3 e4 Qe3 dxe3 Kd1 Kd7 f4 Kd6 b4 Kd5 g4 Kd4 g5 e5 b6 h5 g6 a5 b7 c5 b5 h3 b6 h4 g7 h2 d3 a4 Ra2 h3 Na3 e2+ Kd2 e1N Bg2 e3+ Kd1 e2+ Kd2 e4 Rb2 Ra6 Nb1 a3 Rb3 a2 Na3 a1B Nc4 Qe8 Ne3 Ne7 g8R Qb5 Rg7 Bf5 Ba3 Rh7 Kc1 Nc8 Bf3 Bc3 Bb2 Bd6 Ba1 Bc7 Bb2 Nc6 b8R Rh8 Bg2 Nf3 b7 Nd2 Ra8 Ra4 b8R Rh4 Rb7 Nb8 Ra6 Bh7 Rh6 Bf5 Rh8 Rh6 Ba1 Rha6 Rb2 e1N Rb6 Nef3 Rb7 Ne5 Bf3 Qa5 R7b3 Ned7 Nd5 e3 Ne7 e2 Rg5 Ke3 d4 Ne5 d5 Ng6 Ra2 Nc4 Kb1 Na7 Bg2 Qb5 Nf3 Nc8 Nh4 Be4 Nhf5+ Kf2 Ne3 Nf8 Rg1 h1B Rg3 Bd2 Bg7 h2 Rab2 Nh7 Bf8 Nf6 Rg7 Bc3 Re1 Bg6 Be4 B3e5 c3 Nd2+ Kc2 Bf5 Ra1 Nh5 Kc1 Bf6 Bf3 Bg2 Be4 Bf1 Bf3 h1R Bg2 Rh2 Bh1 Bd3 d6 Bb1 d7 Bh4 d8B Bg2 Nc6 Bf6 Bde7 Bfe5 Bf6 Bd4 Ne7 Bde5 Bg5 Bf6 Bh4+
3Nq2n/p1np2n1/q1Bbrn2/Bb4Kb/1NQ4B/3P4/P3BB2/1nk1BR1q b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 f5 c5 f3 c6 f4 Qb3 Na6 Kf2 Rb8 Ke1 bxc6 Qc4 c5 Qa4 c4 Qd1 Rb5 b4 h5 Na3 Rf5 gxf5 Rh6 Rb1 Rh7 Rb2 Rh8 Rb3 Ke7 Rd3 Nf6 Rd6 Ng8 Rg6 Ke8 Rg4 hxg4 Kf2 Kf7 h4 Kf6 e4 Ke5 f6 Kd4 d3 Kc3 e5 c5 f7 g5 e6 g3+ Ke1 f2+ Ke2 g4 b5 g2 e7 f3+ Ke3 g3 Kf4 Nf6 e8B Bd6+ Kg5 Rh6 f8B Nc7 h5 Ba6 b6 Bb5 Bg6 Qe8 Be3 Kb2 b7 c3 b8B c4 Bc5 c2 Bb6 c1N Rh4 c3 Rc4 c2 Nh3 g1N Ba5 g2 Be1 Nge2 Rg4 g1Q Nf4 Nb3 Be7 c1Q Nc2 Nc5 Nb4 Qh1 Be4 Qc4 Qa4 Kc1 Ne6 Nf4 Rg1 Ng6 Be2 f1B Nd8 f2 Bc6 Nh8 Qb3 Bg2 Rf1 Bf3 Qa4 Nfd5 Qa6 Re6 h6 Bh5 h7 Nf6 Qa4 Nb3 Qa6 Nd4 Qa4 Nf5 Qa6 Ncd5 Bc7 Ng7 Ba5 Nc7 Nc2 Ng6 h8B Qa4 Nb4 Qa3 Rg1 f1N Qc8 Nd2 Rf1 Nb1 Qa6 Bg3 Bc5 Bd6 Bcf2 Nf5 Bg7 Nh8 Bf8 Ng7 Bh4 Be5 Bc5 Bd6 Bcf2 Qa4 Qb6 Qa3 Qd4 Qa4 Bb6 Qa6 Ba5 Qc8 Qe4 Qa6 Qc4+
7n/r1ppR1BN/qB2bq1R/3PkNbp/N5P1/1Nrn1BN1/Kb1qn3/8 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 b5 c4 bxc4 b5 gxh4 Qa4 f5 Qb4 axb4 exf5 Ra3 Be2 Ra4 Bf1 Ra8 Kd1 Kf7 Kc2 Kf6 Kb2 e5 g4 h6 a4 h3 d4 h2 f4 e4 b6 c3+ Ka2 c2 b7 e3 a5 e2 a6 e1Q a7 Be7 Nd2 Nc6 b8N Ne5 Be2 Ba6 Nc6 Bc4+ Nb3 Be6 d5 Qd2 Ncd4 Nd3 Bf3 h5 Nge2 Nh6 Ng3 Re8 Re1 h1Q Bb2 c1B Rb1 Rb8 a8N Nf7 Nb6 Nh8 Na4 Ra8 Re2 Ra7 Ra1 Kf7 f6 Qf1 Ndf5 Qc8 Re4 Qa6 Re5 Kg6 f7 Bg5 f8B Kf6 Bc5 Rb8 Bg1 Rb6 Bd4 Rc6 Bb6 Rc3 Re4 Bg8 Re7 Be6 Ne3 Qff2 f5 Ke5 f6 Qf1 f7 Qff2 f8N Qf1 Nd4 b3+ Kb1 Qff2 Nef5 Qf1 Ra3 Qff2 Ba1 b2 Nh7 Qf1 Ka2 b1N+ Nc2 Bb2 Ncd4 Qff2 Rb3 Na3 Rb5 Nc2 Nb3 Nd4 Rc5 Ne2 Rc6 Qd4 Rg7 Bf7 Rh6 Be6 Re7 Q4f4 Ne3 Qf7 Nef5 Qf6 Kb1 Rc6 Nf1 Bc3 N5g3 Qf8 Nf5 Kf4 Bd4 Qf7 Bg7 Qf6 N1g3 Ke5 Bb2 Bd4 Ba3 Rc2 Bc5 Bb2 Ka2 Rc3 Bb6
1b2BB1q/1bkRBB2/4p3/N2n2p1/p2n2P1/2NKn1bP/B3B3/r1bQ1r1b b - - 0 1 illegal: No proof kernel
2RK1b2/1pP1r1r1/2B2Rpq/2bN2p1/N4BPN/1B1n3k/2b2nBb/nb3B2 b - - 0 1 illegal: No possible last move, all moves rejected
2K2n1N/6Bb/rNbPp1n1/rn6/1NB3R1/3bPk1p/3p1qB1/BR2rBb1 b - - 0 1 illegal: No possible last move, all moves rejected
1r1k4/2qnR1Nb/5P1B/rQ1r1bpB/BB2b1P1/3Npp1K/4q3/B4nbB b - - 0 1 illegal: No proof kernel
4RBb1/3p4/3P1bkP/NK2pq2/2rr1B2/1B2r2R/b1B1Npnq/1NBn1b2 b - - 0 1 illegal: No proof kernel
1bR3B1/BNqbq3/k1P1N1q1/2p1p1qB/3R1n2/r1rB1n2/p3PB1b/R6K b - - 0 1 illegal: No proof kernel
1n2Rn2/bnp2K2/b1q1N1pr/1R2qP2/2Q4q/R1P1R1kp/2R3B1/1rBR2q1 b - - 0 1 legal: proof: g4 b5 h4 d5 a4 g6 e4 dxe4 axb5 Qd3 g5 Qd7 h5 Qd8 Nc3 Bh3 Nce2 Bc8 Nf4 gxh5 g6 h4 g7 Ba6 Ng6 fxg6 Ra5 Bb7 Ra1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 a5 Kg5 Ke5 b4 h5 c3 h3 f3 a4 b6 a3 b7 e3 b5 e2 b6 e1Q d3 h2 Be3 h4 Qb3 h3 Bc1 a2 Ne2 Nf6 g8R Nfd7 Nf4 Rh6 Bg2 Qg1 Ne6 Ra4 Rh8 Rb4 Qc4 Rb1 Rg8 Bg7 Re8 Nf8 f4+ Kd6 f5 Bd4 Nf4 e5+ Re7 e4 Ne6 Bc5 Kf6 e3 d4 e2 d5 e1Q Kf7 Ke5 d6 Qh4 d7 Qe8+ Kg8 Bf2 d8R Qc6 Rdd7 Qe1 Rg1 h1Q Rd1 Qh2 Rh1 Qhg1 Rh2 Be3 Kf7 Qeg3 Nd4+ Kf4 Re5 Kg4 Ne6+ Bd4 Re3 Qe5 Bf3+ Kg3 Rc2 Nbd7 b8R Ba6 b7 Ba7 Rc8 Nb8 Re8 Rb5 Rb1 a1N Rb3 Rb6 Ra3 Rb1 Rc8 Nb3 Re8 Nc5 Bg2+ Qf3 Ree1 Qc6 Ree2 Nbd7 b8R Nb7 Re4 Nbc5 Rb4 Nb8 Rb5 Nb7 Re3+
nbRq4/BB1pk2b/3nP3/4Nnpq/q7/BN1nN3/RNKP1pr1/1r5N b - - 0 1 legal: proof: b4 e5 f4 exf4 g4 b5 a4 c5 c3 h5 Qb3 hxg4 axb5 Be7 b6 Bd6 b5 Bf8 Qb4 cxb4 Kd1 f5 e4 a5 h4 g5 c4 g3 b7 b3 e5 a4 h5 g2 b6 a3 c5 a2 e6 f3 h6 b2 c6 f4 h7 f2 c7 f3 Rh4 Ne7 Ba6 f1N Rh6 f2 Rh1 Ng3 Nc3 b1Q Nd5 Nef5 Ne2 g1N Ne3 Ne4 Ng3 Ke7 Rh3 Ra7 Nh1 Ned6 Rh5 Qb5 Ba3 Ne2 Kc2 Nf4 Rh4 Nd3 Rc4 Bg7 Rc5 Be5 Rc6 Re8 h8N Bg3 Nf7 Rh8 Ne5 Rh2 Rc5 Rg2 Rc3 Qb4 Rc6 Qh4 Rc3 Nc6 b8N Na5 Bb7 Qh5 Na6 Nc4 Nc5 Ra5 Nb3 Rb5 Bf3 Ba6 b7 Rb4 b8B Nb6 Bb7 Na8 Ba7 Bb5 Rc4 Bc6 Rc3 Be4 c8N+ Kf6 Re1 a1Q Nb6 Ke7 Rc8 Qd4 Rf1 Rb5 Ra1 Qa4 Nbc4 Rb4 Kc3 Rb6 Ra2 Rb5 Na1 Rb1 Nb2 Nh6 N3g4 Bh7 Nb3 Nf5 Nec4 Bf4 Kc2 Be5 Rc5 Nc8 Nge3 Bb8 Ne5 Ncd6 Rc8
1K2BRnb/1n1rp3/1b2p2B/1P4B1/k2qrNBp/1br5/b3P1NR/r1B3N1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Qd2 gxh4 Qh6 Qb6 Qd6 Qd8 Qe6 fxe6 Kd2 d5 Kd3 Kd7 c4 a5 g4 h5 b4 h3 f4 h4 c5 a4 g5 a3 f5 a2 g6 h2 c6+ Kc7 g7 Kb6 c7 Rh6 f6 Rh5 f7 Nd7 Bh3 Re5 Nc3 Ra3 Bg4 Bb7 c8B Re4 Bg5 Ba8 Rf1 a1B Bb7 Bb2 Bc6 Ra1 Nd1 Nc5+ Kc2 Ba3 Be8 d3+ Kc3 d2 Ne3 d1R Ng2 d4+ Kc4 Nb7 Rf5 Bc1 Rf2 Be3 Rf4 Nh6 g8N Bg7 f8B Bh8 Nf6 Ng8 Bfh6 Qd7 Nh5 d3+ Kb3 d2 Rf8 Qd4 Nhf4 Rac1 Ka3 Rc3+ Ka4 Ka7 b6+ Ka6 Rf6 Nd8 Rf5 Bd5 b7 Ba2 b8B Nb7 Rf8 Ra1 Bc7 d1R Bd6 Qg7 Be5 Bb6 Bd4 Rd2 Be3 Rd7 Bc1 Qd4 Ngh3 Ka7 Kb5 Bb3 Rf1 h1B Ng1 Rce3 Kc6 Ka6 b5+ Ka5 Rf3 Ka4 Rh3 Rf3 Rh2 Rh3 Ba3 Rc3+ Bc5 Ba2 Ne1 Bf3 Neg2 Ree3+ Nd5 Bc4 Ba3 Be4 Bb2 Bb1 Ndf4 Re4 Ba3 Bba2 Bc1 Bc5 Bg6 Bcb3 Be8 Rd8 Kc7 Rd7+ Kc8 Bb6+ Kb8
n1r2R2/RbBK3p/6RP/1p1P1rBn/BbR4q/1n1NNp1b/1p2k3/1r4R1 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 g4 f6 exf6 Qc2 f5 Qb3 f4 Qf3 gxf3 Kf2 Ke7 g4 Kf6 d4 Kg5 a4 c5 h4+ Kh6 e4 f5 a5 b3 d6 b2 g5+ Kh5 d5 Kg4 a6 b6 h5 c4 d7 c3 a7 c2 g6 Na6 h6 Qg5 d8B Be7 e5 Bb4 e6 Be7 g7 Bb4 e7 Nf6 e8R Nc7 g8R Bb7 Na3 Nh5 Re4 Rc8 Ne2 Na8 Bc7 Rf8 Rg6 b5 Rc4 Rf7 Be3 c1R Nc2 Rb1 Nc1 Rc8 Nd3 Rf6 Be2 Rff8 Re6 Qf6 Bd1 Qh4+ Kf1 Kg3 Rd6 f2 Ke2 f1N Rg6+ Qg5 Bc1 Nd2 Ne3 Rf7 Ba4 Nb3 Nf2 Rf6 Kd3 Kf3 Rg1 Qh4 Bd2 Nc5+ Kd4 Ke2 Ke5 f3 Bc1 f4 Nd3 Rf5+ Kd6 Nb3+ Kd7 f2 Ng4 f1B Be5 f3 Bg5 Nd2 Ke6 Qf2 Ne3 Bc6 Bc2 Qh4 Ra5 Bg2 Ba4 Nb3 Ra6 Nb6 a8R Rd8 Bg3 Bb7 Bc7 Bh3 R6a7 Rdf8 Re8 Na8 Kd7 Rg8 Ree6 Rb8 Ref6 Rc8 Rf8
3b1R2/7R/1bP1n1p1/pR1K1RRr/pQr3r1/3nqB2/3pbBP1/R2n1kN1 b - - 0 1 illegal: No proof kernel
2RNR3/N1q1N1bp/p1b2r1p/rn3Np1/kQ3nN1/1NBq1PP1/K7/4nq2 b - - 0 1 illegal: No proof kernel
bq4r1/N1Bp1kP1/1r2p1R1/B4R2/7q/1nBKP2p/2N1p1B1/bb1nN1rB b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 gxh4 Qe2 f5 Qa6 f4 Kd2 f3 Qe2 b5 axb5 fxe2 g4 h5 c4 a5 b4 a4 f4 h3 g5 e6 f5 d3 c5 h4 g6 a3 f6 h2 b6 a2 b7 h3 c6 Qc7 b5 Ne7 f7+ Kd8 b6 Bg7 f8B Ke8 Na3 Ra7 Nf3 Rg8 Nc2 Nd5 Bb2 Na6 b8B Nc5 b7 Nc3 Bg2 Ra6 Nfe1 Nd1 Rf1 h1R Bc3 Rg1 Rf5 Rb6 Rb1 Qd8 Bc7 a1Q b8N Bb7 Rc1 Bd4 g7 Qh4 Be7 Qa8 Bed8 Bf6 Rb1 Be5 Rb4 Bf6 Rg4 Kf7 Rg6 Qa7 Bh1 Ba8 Bg2 Rb2 B7a5 Rb6 c7 Qb7 Nc6 Qb8 Rfg5 Bd4 c8B Be5 Bb7 Bd4 Kc1 Nb3+ Kb1 d2 Bc7 Be5 Na7 Bf6 Bcb4 Ba1 Bc3 Nb2 Bh1 d1B Bbg2 Nd4 Nb4 Bc2+ Kc1 Bf5 Kd2 Bb1 Nbc2 Nd1 Kd3 Nb3 Rf5+
rk2q1Rq/1p3B1b/1N2p3/p1pB1N1B/1B3nr1/RB1n2P1/P6N/2nKb2r b - - 0 1 illegal: No proof kernel
Nbb2R2/2B1P3/B2p1B1B/2p3K1/1p1n1pBN/2rqq1Qr/q2Pn2B/kr6 b - - 0 1 legal: proof: b4 b5 c4 h5 f4 e5 g4 exf4 gxh5 a6 a4 bxc4 b5 a5 Ra3 Nh6 Rb3 Ng8 Rb4 axb4 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 e4+ Kd4 h4 g5 h6 c5 h5 c3 h7 c2 a5 f3 e5 f6 h6 d6+ e6 f2 a6 Be7 a7 Qa5 b6 Bd8 b7 Bc7 Ba6 f1Q Qf3 Ne7 Nc3 Qd3 Nd5 Qa2 Qg3 Nec6 Nb6 f5+ Kh5 g4 e7 Ke4 Bb2 c1R Bf6 Rc3 Kg5 Nd4 Nf3 Ne2 Rf1 Nc6 Nh4 Bb8 Rf2 Ncd4 Bg7 Rf8 h8B Rf6 h7 Rh6 Ng2 Rh3 Bh6 Rc1 Nh4 Rb1 Nd7 Kd5 Bf6 Ke4 h8B Kd5 Qg1 g3 Nb6+ Ke4 Qh2 g2 Qg3 g1Q Be5 Qe1 Bhf6 Qg1 Rf3 Qge3+ Bf4 Qdc4 Rf1 Kd3 Rf2 Kc2 Rf1 Bc7 b8B Kb2 Rf2 Qcd3 Rf1 Bd8 Bc7 Ka1 Rf3 Rb8 a8B Rb7 Rf1 Ra7 Bf3 Ra8 Bb5 Ra3 Na8 Rb3 Ba6 Rc3 Ba5 Bc7 Bg4 Bb8 Bc7 Qde4 Qf3 Q3d3 Bh2 Qe5 Qg3 Qee3+ Rf4 Qf2 Re4 f4 Re5 Qfe3 Rf5 Rh1 Bfg7 Re1 Rf8 Rb1 Bf6
N7/b2r2n1/4N2K/rkB1pN2/1NqP3R/pr4pp/P1N1R3/1bQ1Nnrr b - - 0 1 legal: proof: g4 c5 e4 d5 h4 dxe4 b4 g5 bxc5 gxh4 g5 f6 Bh3 f5 Bg4 fxg4 Ke2 Kd7 Ke3 Kc6 Kf4 a5 c4 h5 d4 b5 g6 e3 Kg5 h3 f4 h4 g7 e5+ Kg6 h2 f5 g3 f6 b4 f7 b3 Qc2 a4 Nf3 e2 Ba3 e1R Qc1 Nh6 g8N b2 Nf6 Ra5 Nd5 Rg1 Ne1 Qc7 Bb4 Be7 f8N Ng4 Ne6 Ne3 Na3 b1R Nac2 Rd8 Kh6 Nf1 Ba3 Rd7 Ndb4+ Kb7 c6+ Kb6 c5+ Kb5 Qb2 Bd6 Qc1 Rb3 Rb1 Bb7 Rb2 Qc8 c7 Be4 c6 Na6 Nf4 Bc5 Ne6 Qg8 c8N Nc7 Ne7 Ne8 c7 Ba7 c8N Ng7 Nb6 Qc8 Na8 Qc4 Nf5 Bd3 Nd5 Be4 Bc5 a3 Ndb4 Bd3 Na1 Be4 Re2 Bb1 Nac2 h3 Re4 Rg2 Rg1 h1R Rh4 Nh2 Rf1 Rgg1 Rf2 Nf1 Re2
2KR2Q1/p3kr1q/N1pR1R2/1b1qR1nR/1p6/Bn1rPpbr/P2RN3/6r1 b - - 0 1 legal: proof: f4 e5 h4 exf4 b4 c5 bxc5 g5 c6 gxh4 c7 Bg7 Kf2 Bh6 Ke1 Bf8 c4 b6 c5 Ne7 c6 Rg8 e3 Bb7 c8R Ba6 c7 Rh8 Bb5 Ng8 Bc6 dxc6 Kf2 h5 Kf3 f5 g4 b5 d4 b4 g5 h3 d5 h2 g6 h4 g7 h3 d6 Ne7 g8R Nd7 Ne2 Bb5 Qb3 Nd5 Rg5 Nc3 Qg8 Ne4 Ba3 Ndc5 d7+ Ke7 Nd2 Nb3 Rad1 Bg7 Rg6 Be5 Rf6 Rh6 Rhf1 h1R Rb8 h2 c8R Qa5 d8R Rg1 Rdd6 Rh5 Rcd8 h1Q+ Qg2 Qh2 Qg8 Rh8 Rf2 Qh7 Rb6 Rb8 Rh2 Rb7 Rh5 Rd7 Rbb8 Nec5 Ne4 Ne6 R6d2 Rd3 Nc5 Bc7 Na6 Ng5+ Kf2 f3 Rdf8 f4 Rbd8 Rc3 R2d6 Rd3 Rd2 Ba4 Rf5 Qd5 R8f6 Rg3 Ke1 f2+ Kf1 Rf3 Kg2 f1R Kh2 Bb5 Kg2 Ne4 Kh2 R3f2+ Kh3 Ng5+ Kg4 Rf3 Nd4 Rh3 Ne2 f3 Kf4 Qc4+ Ke5 Rg1 Qd5 Re8 Qg8 Qd5+ Kf4 Qdf7 Ke5 Bb6 Rd4 Rf8 R8d7+ Ke8 Kd6 Bc5+ Kc7 Bd6+ Kb7 Bg3 Kc8 Qe6 Rd6 Qd5 Rd8+ Ke7 Rg6 Rf7 Rgh6 Be5 Rhf6 Bg3 Re5+
1b3r2/k2NbpB1/br1b4/1Bpn2NR/K3B1n1/1p4bR/1pP2PR1/1Rr1R3 b - - 0 1 legal: proof: g4 a5 e4 d5 b4 axb4 h4 dxe4 g5 Nh6 h5 Qd6 Qg4 Ng8 Qg3 Qh6 gxh6 Bh3 Qg2 Bc8 Qg6 hxg6 Kd1 Kd8 d4 b5 a4 e5 a5 g5 d5 b3 h7 g4 a6 g5 a7 e3 d6 e2+ Kd2 e1R Kc3 e4 Kb4 g3 h6 e3 Rh5 e2 Bd2 g2 Rh2 g4 Bg5+ Be7 Na3 b2 Ra2 g3 Ra1 Na6+ Ka5 b4 d7 b3 Rh5 Rc1 Ka4 e1B Be2 Rb8 a8B Rb6 Baf3 Nb4 Nc4 Ba6 Rb1 Nf6 Ne5 Rf8 h8R Nbd5 h7 Ng4 Be4 Bb4 Nh3 g1B Bf6 g2 Bb5 Bd6 Bg7 c5 Ng5 Kc7 d8R Kb7 Nd7 Ka7 Re8 Bgh2 Rg8 g1B h8R Bhg3 Rh3 B1h2 R8h5 Bb8 Bed3 Bd8 Re1 Be7 Be4 Bgd6 Rgh8 Bhg3 Rh2 Bb7 Rg2 Bc8 Rh3 Ba6 R8h5
3nR3/2BP1rpK/8/3P4/1B3nB1/1rNR2rb/N1q2N1k/Nn1R1n1n b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 d5 c4 a5 cxd5 h5 g4 hxg4 bxa5 b4 a6 e6 a3 bxa3 Qc2 Bc5 Qxc5 Rh6 a7 Rh8 Qb6 Na6 Qb8 Nxb8 Ke2 Kd7 Ke3 Kd6 Ke4 c5 f4 e5 d4 a2 h4 c4 h5 c3 h6 c2 h7 g3 f6 g2 f5 Ne7 f7 Rf8 h8R Qc7 f6 Ng6 Be2 Nc6 Nc3 Bh3 Bf4 c1N Bg4 Nd8 Kf5 Ne2 Rd1 a1N Na2 Nb3 Rd3 Rb8 a8N Nd2 Nb6 Nb1 Na4 Rb3 N4c3 Ng3+ Kg5 Nf1 Bg3 Re8 f8N Re7 f7 Nf4 Nd7 e4 f8B e3 Nc5 e2 Kf5 e1N Rg8 Rb2 Nb3 Qc4 Na1 Rb3 Nf3 g1R Ng5 Qc6 Bh2 Rg3 Nge4+ Kc7 Kg5 Rf7 Bb4 Qc5 Nf2 Kd6 Re3 Ned3 Rge8 Nfd2 Rd1 Nf1 Nh1 Nf2 Red3 Nfe6+ Kg6 Nf4+ Kh7 Nbd2 Ba5 Nb1 Ne2 Qc2 Bb4+ Kc7 d6+ Kc6 d7 Kd5 Rh8 Ke4 d5 Ke5 Bh5 Kf5 Nec3 Kg5 Re8 Kh4 Rde1 Be6 Rd1 Kh3 Bg4+ Kg2 Be2 Bh3 Bg4 Re3 Ng3 Nh1 Nge4 Rg3 Nf2 Rf3 Bg3 Re3 Bh4 Rg3 Bf6 Kg1 Be5 Kh2 Bc7
N2Kb2R/Nq5B/1nB2rpP/Bp1P3N/pkr1n3/1n3NR1/7R/4r1n1 b - - 0 1 illegal: No possible last move
1nBnN2n/1B2BR2/1NRP1np1/1Kb2b2/n1n4B/2P1b2r/1R6/bq3Nk1 b - - 0 1 legal: proof: b4 b5 f4 d5 e4 e5 a4 h5 g4 hxg4 Qf3 a5 Qa3 c5 axb5 Ra7 b6 Re7 b5 dxe4 Qb2 e3 Qd4 e4 Qb4 Re5 fxe5 cxb4 Ke2 Ke7 h4 Ke6 d4 Kf5 e6 Kf4 d5 Kg3 b7 f5 h5 b3 b6 f4 e7 f3+ Ke1 g6 e8B e2 Kd2 Kf2 Kc3 e1N Kc4 e3 h6 e2 h7 b2 Bg5 a4 Be7 a3 Rh3 g3 Nd2 b1N Ba4 a2 Kc5 g2 Bd7 Nf6 Nc4 Nc3 Nd6 Na4+ Kb5 Nd3 c3 e1N Ne2 g1B Ng3 Nf4 Bg2 Ned3 Nf1 Ne5 Ne8 Ne6 d6 Nf7 Rh5 Bh6 Rc5 Be3 Rc6 Qc7 Rb1 a1B Rb4 Bc5 Rf4 Ned8 Bdh3 Bf5 Bh1 Na6 b8N Qb7 Nd7 Nb8 B1g2 Qa7 b7 Qb6+ Kc4 Qb1 Nb6 Bh2 Bh1 Kg1 Bg4 f2 Bd5 Be4 Bc8 Bf5 Rf3 Bf4 Be4 Nbd7 b8R Bfe3 Rb7 Nb8 Rf4 Rf8 h8B Rg8 Bg7 Rh8 Bh6 Rh7 Bg5 Rh3 Bh4 Nh8 Bh1 Qc2 Kb5 Qe4 Ng3 f1N Rf3 Nd2 Nf1 Nc4 Rf2 Ne6 Rb2 Qb1 Bd8 Nf7 Rcc7 Bcd4 Rc5 Nh8 Rf7 Rh2 Bc6 Rh3 Be7 Nd8 Be4 Rh2 Rc7 Rh3 Beb7 Bc5 Rc6
1r2r1bN/b3PB1n/N4kn1/q3q1RK/P4b2/1BB3RN/p1p1N2R/1nq5 b - - 0 1 legal: proof: b4 a5 g4 e5 a4 d5 f3 h5 f4 hxg4 bxa5 exf4 c4 b5 cxd5 b4 Qb3 Qg5 Qa2 Qd8 Qa3 bxa3 Kf2 Ke7 d4 f5 e4 g5 h4 c5 e5 f3 Kg3 a2 e6 c4 a6 c3 h5 f2 h6 c2 d6+ Kf6 e7 Be6 a7 Nc6 h7 Qa5 d7 Re8 d8N Ne5 a8B Bh6 d5 Ng6 Bg2 f1Q d6 Qe2 d7 Qee5+ Bf4 Bb3 Nc6 Rb8 d8R Bf7 Kf2 g3+ Kf3 Bc4 Be3 f4 Kg4 f3 Rh2 f2 Nc3 f1N Bd4 Nd2 Nce2 Nb1 Bd5 g2 Nh3 g1Q+ Kh5 Qc1 Bf7 Be6 Rd5 g4+ Ng5 g3 Nb4 g2 Na6 g1B Bc3 Ba7 Rb5 Bf5 Nh3 Bf4 Bad5 Re8 Bb3 Be6+ Ng5 Nh6 Rd5 Ng4 Rd3 Rb8 Rg3 Rhe8 h8N Nf2 Re3 Ne4 Rg3 Bd5 Kg4 Bc4 Nh3 Ng5 Kh5 Nh7+ Rg5 Rec8 Be8 Bg8 Bef7 Nd2 Rb1 Re8 Ra1 Qb2 Rah1 Qc1 Rg1 Nb1 Rg3
2B3Nr/q2pBB2/1b1N2R1/7k/2rq1pn1/1PNPN3/1RK3np/1Rb3rb b - - 0 1 legal: proof: f4 b5 h4 c5 e4 e5 h5 exf4 h6 c4 Rh5 c3 bxc3 b4 Qe2 b3 Qe3 fxe3 axb3 gxh6 Rh3 h5 Rh1 h4 Kd1 f5 g4 Kf7 d3 Kg6 g5 a5 c4 h5 c3 a4 c5 e2+ Kc2 e1B c6 a3 e5 h3 c7 h2 e6 a2 e7 f4 e8R h4 c4 h3 c5 Ba5 c6 Bb7 c8N Nf6 c7 Kh5 g6 Bb6 g7 Ra4 g8N Ng4 Ne2 Ba3 Nec3 Nc6 Rg1 h1R Nd5 h2 Ne3 Ne7 Bg2 Nf5 Nc3 Nh4 Rb1 a1Q Nd6 Qa8 c8B Rc4 Bd5 Ng2 Re6 Qa5 Rb2 Qa7 Rg6 Bc6 Re1 Rg1 Bf7 Bf3 Bd2 Bc6 Reb1 Bd5 Ra2 Bc1 Rab2 Q1a4 Be1 Qb4 Bh4 Qc5 Ne8 Qd4 Bg5 Nh4 Nd6 Bh1 Bf6 Ng2 Be7
qr5R/1p4pr/rn2BNbk/7P/1KNr1RNp/R3B1bP/B4r2/b4B2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 e5 fxe5 a5 a4 axb4 Qd2 Qe7 Qd3 Qd8 g3 h5 Qa3 bxa3 Bb2 Nc6 Bc1 Nce7 g4 h4 Kf2 Nf6 Ke1 Nh5 gxh5 Ng8 Kd2 f5 e4 Kf7 c4 d5 c5 a2 c6 d3 Kc3 f4 h3 d2 c7 d1R e6+ Kf6 e5+ Kg5 a5 Ra6 e7 d4+ Kb4 d3 e6 d2 Nf3+ Kh6 Na3 Re1 Nh2 d1R Nc4 Rh7 Be3 Rd4 Rg1 Bd7 c8B Be8 Rg4 Nf6 Bd7 Qa8 Bc8 Rc6 a6 Nd7 a7 Nb6 Bd7 Bg6 Bc8 Rdd6 e8B Rd4+ e7 Re2 Bed7 Rf2 Be6 Rcd6 e8N Be7 Rc1 a1B Rc3 Bf6 Bf7 Be5 Nf6 Rd8 Bf5 Rb8 B5e6 Ra2 Rd3 Ra6 Ra3 Bc7 Bf2 f3 Rf4 Be5 Be3 f2 Nhg4+ Kg5 Bg2 f1R Bg8 Rf2 Bf1 Rc8 Nh2 Kh6 Bgf7 Qb8 a8R Qa7 Rb8 Qa8 Bg8 Rc7 Rf8 Rc8 Bgf7 Bc7 Rh8 Rb8 Nhg4+ Kg5 Bf5 Re8 Bb1 Rb8 Re4+ Kf5 Bd5 Bg3 Rf4+ Kg5 Bg8 Bh2 Ba2 Bg3 Nh2 Kh6 Bd5 Rc2 Be6 Rf2 Nhg4+
B2N1R2/3b1K1b/3pPBp1/2N1B2R/qpNq1np1/1Pq3k1/1r2Rr2/3r1N2 b - - 0 1 legal: proof: f4 c5 g4 e5 d4 cxd4 a4 exf4 a5 b5 Kf2 Bc5 Ke1 Bb6 axb6 Ba6 Nf3 Bb7 Ng1 Bc8 Na3 f5 Be3 h5 Qd3 f3 Bc1 f4 Nb1 Nc6 Qf5 Nce7 Qg5 Nf5 gxf5 Rb8 Qg2 Ra8 Qg4 hxg4 Kf2 Ke7 e4 Kf6 h4 Ke5 c4 a5 f6 d3 h5 d2 c5 d1R h6 d6 c6 a4 c7 b4 f7 g6 f8R a3 h7 a2 b3 Ne7 b7 Qd7 b8N Rd5 Bb2+ Rd4 Na3 Ra4 Ne2 Nd5 Na6 Qe8 Bg2 Bd7 Rae1 a1Q c8N Qc1 Rh2 Qc3 Nc5 Rd1 Ng3 Rg8 h8B+ Rg7 Rf6 Rf7 Nf1 Ra8 Re2 Ra5 Nb5 Ra2 Nca7 Qa8 Ba1 Rb2 Na3 Qc6 Bh1 Qa4 Rh5+ Bf5 Kg1 f2+ Kh2 f3 Kg3 Nf4 Kh4 Rf8 Kg5 Bd7 N7b5 Qd4 Nc7 Qc3 N7e6 Qd4 Nd2 f1Q Nd8 Qe1 Nf1 f2 Bf3 Qec3 Bg2 Re8 Bh1 Re6 Rf8+ Rf6 Bg7 Ng2 Kh6+ Kf4 e5 Rf7 Bf6 Kf3 Nh2+ Kg3 Nc4 Nf4 Ba8 f1B Kg5 Bg2 Kh6 Bd5 Kg5 Re7 Kh6 Bf7 e6 Bg8 Be5 Re8 Kg7 Bh7 Kf6 Qce3 Kf7 Qec3 Nc6 Rb8 Nd8 Rb5 Nd3 Rd5 Nc5 Rf1 Bf6 Rf2 Nf1+ Kf3 Rh8 Qe5 Re8 Rb1 Rc2 Qce1 Nfd2+ Kg3 Bc3 Rb2 Rf8 Rd3 Bd4 Q5e3 Bde5 Qd4 Rc1 Qee3 Re1 Qc3 Re2 Qed4 Nf3 Rdd2 Nh2 Rd1 Nf1+
nbNq4/bNb3RK/B1pr4/Bb1k3R/1q3q2/R1PPn1Rq/8/N1nrB3 b - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 d5 Nf3 dxe4 Ra6 f5 Ng1 g3 Qg4 fxg4 Ra4 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 a5 Kg5 a4 Kg6 g2 b4 e3 h4 g3 f4 e2 b6 e1Q b5 a3 f5+ Kd5 f6 e5 b7 e4 b6 a2 f7 e3 h5 e2 h6 Qf2 h7 e1Q Rh6 Qf4 Rh1 Ne7+ Kh5 g5 Na3 g4 Nc4 Na6 b8R Nf5 Kg6 Bd7 b7 Bd6 Nf3 g1Q f8B g2 Rh3 g3 Nd4 Qh2 Nb3 g1B Nca5 Bb6 c3 g2 Rc8 g1B b8N Qee4 Rg3 Qh3 Nbc6 Bgc5 Na7 Ne3+ Kg7 Ba4 Be7 Re8 Bf8 Re6 h8R c6 Nb7 Bb8 Rc7 Qc4 Bd6 Qb4 Nc8 Ba5 Rf7 Nc7 Rh4 Ra7 Kh7 Na8 Bc7 Rd6 Rfg7 Ra6 Bb5 Bca7 d3 B5b6 Bd2 Ra5 Rb1 a1N Ba6 Bb5 Be1 Ra2 Rh6 Rd2 Rb2 Rd1 Ra2 Ba5 Ra3 B5b6 N3c5 Nb3 Rh5+ Qdg5 Bd8 Nc1 Nb3 Ba5 Na1 B5b6 Bf6 Ba5 Bd4 Bd8 Bb6 Bdc7 Rh6 Qgf6 Ba5 Qd8 Rh5+
3r1q2/pnr5/b2B1NnN/k5b1/P1PR1qR1/Kn2p3/Bn4nR/N4BBb b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 fxg6 Qf3 g5 Qg2 g4 Qg3 hxg3 Kd1 Kd7 f4 Kc7 h4 g5 c4 b5 Kc2 e5 Kb3 g2 a4 g3 d4 e3 f5 e4 h5 e2 h6 e1N d5 e3 f6 b4 h7 g4 c6 Kb6 d6 Ne7 f7 Bh6 f8R Ka5 c7 Nbc6 d7 Bg5 Kb2 b3 Ne2 g1Q Ra2 g2 Rh4 g3 Ka3 b2 Re4 Qh2 Rff4 g1N Nec3 g2 Nd5 Nd3 Rg4 Ne2 Nd2 b1B Ref4 g1N Nf6 Nf3 Rd4 Ba6 c8B Qf8 d8N Nb2 Nf7 Ne1 Nh6 Ng2 Bf5 Rd8 Bd3 Rg8 h8B Rg7 Bh7 Qf4 Nb3+ Kb6 Na1 Na5 Bd2 Ng6+ Bb4 Nb7 Bd6 Rc7 Bg7 Ka5 Bh8 Ne7 Bc2 Ng6 Bb3 Nc1 Bg7 Nbd3 Rc2 Nb2 Ba2 Nb3 Rcd2 Ne1 Rh2 Be4 Bh8 Bh1 Bg7 Qe7 Bf8 Qe8 Be5 Ng2 Bfd6 Qe4 Bg3 Qf8 Bf2 Qf4 Bg1
4b3/P1n1Rp1q/1Rq1N2N/3Br3/1rn1qBKb/N2r1P2/rRn1p1R1/1Bk5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 c5 e5 b3 e6 dxe6 Qg4 e5 Qc4 e4 Qb4 cxb4 Ke2 Kd7 c4 Ke6 a4 Ke5 h4 Kf4 d4+ e3 h6 e5 a5 g5 a6 b5 c5 b2 d5 e4 d6 g4 d7 g3 h5 b3 c6 b4 c7 g2 h7 Ne7 f3 Ng6 h6 Ne5 Nc3 b1R Bd2 b2 Nb5 b3 Bc1 Be7 Ra5 Bh4 Ra2 Nc4 Rh2 Re8 h8R Re5 h7 Qf6 d8N Bd7 c8B Be8 Na3 Qc6 Bf5 Ra7 Be6 Rd7 a7 Na6 Rf8 Nc7 h8R Rd3 Rh6 Ra1 Rfh8 b1Q Bd5 b2 Rd6 Qc2+ Bd2 b1Q Rb2 Ra2 Ne6+ Kg3 Nh3 g1R Nf2 Rh1 Nf8 Kf4 Ng4 Rg1 Nh6 Rg4 Bh3 Q2a4 Rg2 Qb4 Be1 Qba4 Kf1 e2+ Kg1 Ke3 Kh2 Rf4 Bg3 e1N Bf5 Nc2 Kh3 Rg4 Ne6 Qb4 Rg1 Kd2 Rg2+ Kc1 Bf4+ e3 Rd7 Qbb7 Re7 Qb4 Rg8 Qbb7 Rg6 Qa8 Bh2 e2 Bg3 Nd2 Rf6 Rb4 Bg6 Nc4 Kg4 Qc5 Bf4+ Qe3 Nc5 Qb7 Rb6 Qc6 Bh2 Qd4+ Bge4 Qe3 Ne6 Qd4 Bg3 Qe3 Bh7 Qe4+ Bf4+ Qe3 Rb8 Rc3 Nf5 Na1 Bg3 Qh6 Bg6 Qh7 Nh6 Qd3 Bh2 Qe3 Bb1 Nc2 Rb7 Rd3 Rb6 Qee4+ Bf4+
8/b1nn3p/1n3b1P/2RbBB1K/R2n1r2/2Br2Nn/1qP1NNp1/1NR1k2n b - - 0 1 illegal: No possible last move
B1r2k1B/4ppRq/nbbN1r2/1n2RB1r/P7/b5rN/3RPq1B/1K2N1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g5 Qc2 d6 Qf5 gxf4 g5 d5 Qg4 hxg4 cxd5 Ra6 Kd1 Ra5 Ke1 Ra8 Kd1 c5 Kc2 b5 h4 b3+ Kb2 g3 a4 g2 d4 b4 h5 c4 d6 f3 g6 f2 h6 Na6 g7 Nf6 g8B Bg7 d7+ Kf8 d5 Ne8+ Nc3 Nec7 d6 Bb7 Nf3 g1B Bh7 Nb5 Ne1 Bc6 Bf4 Bd4 Bf5 Qb6 d8N Rc8 Kb1 b2 Nd1 c3 Bg2 f1R h7 Rf3 d7 Rg3 Nb7 c2+ Ka2 b1R Rh5 c1B Nd6 Bc5 Nf2 Ba3 Nh3 Rd1 Rc1 b3+ Kb1 b2 Rg5 Qa7 Rg7 Bb6 Bd5 Rdd3 Rc5 Rg6 Bh1 Rf6 Bh2 Rg3 Bg2 Ba5 Re5 Qf2 Ne8 Bb6 d8R Rg8 h8B Rg5 Rd4 Rh5 Rh7 Rg3 Nd6 Bd7 Ba8 Be8 Rg7 Bc6 Kc2 b1Q+ Kd2 Qb4+ Kc2 Qd2+ Kb1 Qh6 Rd3 Qh7 Rd2
3R1Rb1/4B3/3p2P1/1r1P2rq/2prpb1B/B6B/2nN1RnN/rr1kNKn1 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 b5 c4 bxc4 b5 gxh4 Qa4 f5 Qb4 axb4 exf5 Ra3 Be2 Ra4 Bf1 Ra8 f4 Kf7 d4 Kf6 g4 c5 a4 e5 b6 h5 d5 e4 b7 d6 a5 c3 a6 c4 a7 h3 Be3 h2 Bd2 h4 Bg2 h3 Ra2 c2 Rb2 c1N Kf1 b3 Bf3 Rh5 Ke1 Be6 Ba5 Bh6 Nd2 Ne7 Bb4 Na6 b8N Qe8 Bg2 Ng6 Kf1 Nh4 Ba3 Nb4 Ngf3 Bg8 Nc6 Rg5 Ncd4 Ne2 Ne1 Ng1 N4f3 Rb8 a8R Rb5 Rd8 Qh5 Rc2 b2 Rf8+ Kg7 f6+ Kg6 f7 b1R f5+ Kf6 Rb2 Nc2 Rd8 Ra1 f8B Rd1 Nd4 Ke5 f6 Kf4 f7 Ke3 Be7 Rb1 f8B Rd1 Bg7 Rb1 Bgf6 Rd1 Bf3 Ng2 Be2 Ra1 N4f3 Rd1 Nb1 Rd4 Nbd2 Re5 Ra2 Bf4 g5 Rf5 g6 Rg5 Bd1 Ne2 Rg1 h1R Rb2 h2 Ne5 Nc3 Bg4 Ne2 Bh3 Qh7 N1f3 Qh5 Ng4+ Kd3 Kf2 Kc3 Rf1 Rg1 Ra2 h1R Ngh2 Kd3 Rc1 Rd1 Ne1+ Kc3 Rb1 Ng1 Kf1 Rc1 Rb4 Ra1 Ra4 Rg4 Bh4 Rg5 Rf8 Rab1 Raa8 Ra1 Rad8 Rab1 Ndf3 Ra1 Ne5 Kd2 Nef3+ Kd1 Nd2 Nf3+ Kf2 Nce3 Nc2 Re1 Rb2 Kc1 Nb1 Red1 Ne1 Ng1 Bb4 Rg3 Rd2 Nc2 Kf1 Rg5 Re2 R1d3 Rf2 Kd1 Ba3 Rdb3 Nd2 Rb2 Rf5 Rbb1 Rff8
1RB4K/np1rNN2/bPB3Np/6RB/3RnbbB/Pp2rk2/1b4q1/6rb b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 b5 exf4 Qb3 Bh6 Qc3 Bf8 Qb4 axb4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4 c5 d4 f5 b6 h3 a3 b3 d6 h2 d5 c4 d7 c3 d6 f3 Bg5 h6 Nh3 f4 Bb5 f2 Rg1 h1R Bc6 f1B Bh4 f3 Nf4 c2 Nc3 c1B Ng6 f2 Nd5 Rh7 Nde7 Bd2 Rd1 Bc3+ Rd4 Qc7 d8N Be2 Nf7 f1B g3 Kf3 g4 Bd7 g5 Bg4 Rg2 Qd8 d7 Ba6 Rg1 Qe8 d8R Bb2 Rg2 Nf6 Rg1 Bh5 Ke6 Rg7 e5+ Ne4 Kf5 Bfc4 e6 Bd5 Rg4 Rg1 Rg2 Nd7 Rb8 Ne5 Rg4 Nc3 Rg2 Bg4+ Kf6 Be4 Nd5 Bd6 e7 Qg8 e8B Bc7 Nde7 Rh7 Bed7 Rg7 Bc8 Rh7 B6d7 Nc6 Be8 Na7 Bc6 Re1 Rg1 Re3 Rg2 Bf4 Rg1 Qd8 Rg2 Qd5 Rg1 Rh8 Kg7 Rd8 Kh7 Rd7 Kh8 Qa5 Nf8 Qf5 g6 Qg5 g7 Bd5 g8B Ne4 Rg2 Qg6 Ba4 Qc6 Nfg6 Qc2 Rg1 Qg2 Bc6 Qh1 Nf8 Bge6 Ng5+ Ke2 Bf7 Ng3 Bh5+ Bf3 Nf7 Ne4 Rg6 Qh3 Rg4 Bh1 Rg8+ Qg4 Rg6 Kf3 Rg7 Rd5 B8d7 Rg5 Re8 Rd8 Rg8 Bf5 Be6 Rd6 Ra8 Rd8 Bc8 Rd7 Rb8 Be6 Bg6 Qh3 Rg7 Rg1 Bh5+ Bg4 Rg5 Qg2 Nfg6
2r3nn/n3kP2/1Rp1N3/Bp6/R2RrB1N/2R2b2/1qPrpK1n/b1NB2n1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f5 Qf3 e6 dxe6 Ne7 e5 Ng8 Qe4 fxe4 a4 b5 f4 d5 h4 g5 f5 d4 e7 g3 h5 b3 a5 g2 f6 e3 h6 d3 h7 d2+ Ke2 d1R a6 b2 a7 g4 Ra6 g3 Re6 Nc6 Rh4 Bb7 Nf3 Rc8 a8R Na7 Rb6 Qd4 Nbd2 b1N Nb3 Qb2 Rd4 Na3 Nh4 Nc4 Bd2 Bd5 Ba5 c6 Nc1 Bg7 f7+ Kd7 e8R Rd2+ Ke1 g1N Be2 g2 Bd1 e2 Kf2 Nf3 e6+ Kd6 e7 g1N Rd8+ Ke6 e8N Nh2 Nc7+ Ke7 Rd3 Ne5 Ne6 Ng6 Rc3 Bf3 Rdd3 Nh6 Rd5 Rhe8 h8B Ng8 Rd4 Be5 Bg7 Nh8 Bh6 Red8 Ra4 R8d4 Bf4 Re4 Rab8 Rc7 Rd8 Rc8 Rdd3 Qb4 Rca3 Ba1 Rac3 Qb2 Rdd4
3B1Bqb/Rn4R1/2P1p1b1/2NpPbR1/K1b1rNn1/1rB1qbN1/6p1/1B4k1 b - - 0 1 legal: proof: f4 b5 g4 g5 d4 c5 a4 cxd4 axb5 gxf4 g5 h5 Qd3 Ba6 Qf5 Bc8 Qg4 hxg4 Kd2 f5 b4 Kf7 c4 Ke6 Kc2 Ke5 Kb3 Ke4 h4 a5 g6 d5 g7 d3 e3 g3 h5 a4+ Ka3 g2 c5 f3 h6 d2 h7 d1B c6 f4 b6 f2 b5 f3 b7 Nh6 g8N Ng4 b6 Bg7 Nh6 Na6 b8R Nc5 b7 Bf5 Nh3 e6 Nf4 Qg8 Rh5 Ra7 Kb4 a3 Rg5 a2 Ba3 Ra4+ Kb5 Bg6 Nf5 Rb4+ Ka5 Rb3 Rd8 Be2 b8B Nb7+ Ka4 Bd1 Ba6 f1B Bf8 f2 Bc7 Kf3 e4 Bc4 Ng3 f1B Rd7 Kf2 Nd2 Kg1 Bd8 Bf3 Rc7 Bb2 Rg7 Bd3 Bb5 Bc2 Bd3 Bc3 Rb1 Bf6 Rb2 a1Q+ Ra2 Qe1 Ra1 Qe3 Ra3 Bcd1 Bb1 Bc4 Ra2 Bc2 Ra1 Rb5+ Nb3 B2d3 Nc5 Rb3 Ba5 Bc2 e5 Bcf5 Bc3 Rb2 Be7 Rb3 Bd8 Qf7 Ra3 Rf8 h8B Qg8 Rh7 Rf7 Bg7 Rf8 Bh6 Bh8 Re7 Rf7 Bf8 Rh7 Rg7 Rh4 Nfd3 Nf6 Ra1 Re4 Nf4 Ng4 Ra2 Ra3+ Kb4 Ra5 Ra4 Rb5+ Ka3 Rb4 Ra7 Rb3+ Ka4
6qr/pKN3R1/n4bR1/1bqB2k1/q1BNPpn1/P3p3/1B1B1N2/Rnrn4 b - - 0 1 illegal: No possible last move, all moves rejected
1n4N1/pb2NP2/Np4R1/rP1n4/b1bk1BRN/1b2RB2/pr2p2B/2q1b1K1 b - - 0 1 illegal: No proof kernel
3R4/Pp1p1NpR/1rnN1bP1/2qrnn2/2r1NKpB/1B3R2/B4rN1/2k4b b - - 0 1 illegal: No proof kernel forced: wxLB
QR1r2BK/nB1R3P/2rR4/1B1n2nn/1b1R2PN/2q2b2/B2b4/3k2br b - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 g5 a4 c5 d4 cxd4 Nc3 a5 Bf4 gxf4 axb5 h5 g4 h4 Ne4 a4 Ng3 Qa5 bxa5 hxg3 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 Kd5 h4 g2 h5 f3 c3 f4 e6 a3 e7 a2 e8R f2 b6 f3 b7 Nh6 a6 Bb4 a7 Nc6 b8R Nf7 h6 Bb7 h7 Ng5 Re4 Rd8 Rh6 d6 Rc1 a1B c4+ Kc5 e3 d5 Qa4 Bac3 Rd1 Bd2 Rd6 Rc8 Be2 f1R Qa3 f2 Nf3 g1B Nh4 Rc7 Re7 Re1 e4 f1N e5 Ng3 e6 Nh5 Red7 Rc8 e7 Rf1 Kc2 d3+ Kb2 Kd4 e8B Ke3 c5 d4 Bf7 Kf2 Bg8 Ke3 Kb3 Kf2 Kc4 Rc7 Re8 Rd8 a8B Na7 c6 Rcc8 c7 Bf3 Bb7 Re1 Ra1 Rd1 Re4 Ke1 Kd5 Rc1 Bf1+ Kd1 Ra2 Rc6 Ke5 Ra8 c8B Rb8 Ba6 Rbb6 Bg2 Rc1 Kf5 Rbc6 Kg6 Bf4 Bf1 d2 Bd5 d3 Bac4 Bgh2 Nf5 Bc3 Be6 Nb5 Be2+ Ke1 Ng7 d1N Qa7 d2 Red4 Ne3 Rb2 d1Q Qa8 Qd2 Nf5 Nd5 Bg8 Na7 Rb8 Bb4 Ba2 Qc3 Bb5 Bd2 Bb7 Rd1 Nh4 Rb1 Rd3 Ke2 Kh6 Rh1 Rd4+ Kd1 Kg6 Bg1 Kh6 Nhf4 Kg7 Nh5+ Kh8
R2NK3/3PPN2/1nr1nRn1/R1b2q2/1q2RQr1/3n2b1/1NB2n2/2q1kqN1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 b3 f5 Bb2 h6 Be5 f3 Bf6 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kf7 e4 Kf6 d4 c5 h4 a5 d5 Ke5 h5 a4 h6 g4 b4 g5 b6 c3 f6 a3 d6 a2 b5 c4 b7 g3+ Ke1 g4 b6 c2 Kd2 Kd4 h7 c1N e5 f2 e6 c3+ Kc2+ Ke3 f7 g2 Ba6 f1Q Qd5 Kf2 Qd1 g3 Qd5 f3 Be2 Qe7 Bc4 Nd7 b8N Ra6 b7 Ke1 Nd2 f2 Rh4 Nb6 d7 Qb4 Qd4 Bd6 f8R Ne7 Bb3 Ng6 e7 Rg8 h8N Qfb5 Qf4 f1Q Nc6 Qf5+ Ne4 Bc5 b8R Bd6 Rf6 Rg7 Nh3 g1B Nf7 g2 Ra8 Bgc5 Ncd8 g1N Ba4 Nf3 Ng1 Ng5 Rg4 Ne6 Rh4 Qg4 Nf2 Be5 Nd1 Nd3 Bb3 Qf5 Ba4 Nc4 Rg4 Rc6 Ra5 Nb6 Ra8 Qa5 Kb3 c2 Rh4 Qd2 Nb2+ Qc1 Rg4 Nf2 Rh4 Bb8 Kc3 Qb1 Bb3 c1N Bc2 Ncd3 Kb3 Na4 Kc4 Nb6+ Kb5 Qc1 Ka6 Bc7 Kb7 B7d6 Qf3 Bg3 Re4+ Qe2 Qf4 Rg8 Rb1 a1Q Ra5 Qa2 Ra1 Qa4 Ra8 Qb4 R1a5 Rg7 Kb8 Nh4 Kb7 Rd6 Nc6 Rg4 Kb8 Ng6 Kb7 Ng5 Kc7 Re6 Kd8 Rd6 Ke8 Ne6 Rc4 Qf1 Ncd8 Rc6 Re4+
1k3B1B/BBR1b3/2q2R2/1nb1nKQ1/P6R/b5rN/n2r1P1r/bR1nq3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 Nc3 d5 cxd5 Bf5 exf5 f6 Nf3 Qd7 Ne2 Qd8 Ne5 fxe5 Ng1 e4 Ke2 Kd7 Ke3 Kc8 Kf4 g5+ Ke5 c5 h4 b5 a4 c4 d4 b3 f6 b4 h5 c3 f7 e3 d6 g3 h6 g2 d5 b2 h7 b1N Ke4 e5 Qd2 g4 Qd3 c2 Bb2 c1B Nf3 g1R Kf5 e2 Ba3 e1B Ra2 e4 Ne5 b3 Qh3 e3 Qg3 b2 Bc4 e2 Ra1 Qc7 Rh3 Nc3 Bc5 b1N Rh5 Nb5 Ng6 Ne7+ Kf6 Nbc6 d7+ Kb8 d8B Ba3 d6 Beb4 d7 e1B Be3 Ne5 Nf4 Qc6+ Be6 Bc5 Bb6 Nf5 Rh4 N1c3 Nh3 Na2 Rb1 Bc3 Bh6 Ba1 Qe3 g3 Qg5 Bfd6 Bd5 g2 Bf8 Ne3 Ke6 Nd1 Kf5 Be7 d8R+ Qc8+ Rd7 Qc6 Rc7 Ra7 Bg7 Rd8 Bf3 Rd2 h8B Rh1 Bd5 g1Q Bf8 Qe1 Bg2 Rh2 Be4 Qd6 Bb7 Ra6 Bh6 Qc6 f8R+ Bd8 Rf6 Bde7 Bf8 Ra8 Bc8 Ra7 Rd7 Rc7 Bb7 Rc8 Rc7 Re8 Bfg7 Rg8 Bf8 Rg7 Qh6 Rgg2 Qg5 Rg3 Ba7+
3r1nQ1/1Rb1r1n1/R3nrkB/nP6/Pq4R1/3qNB2/b2B1r2/1qBKR3 b - - 0 1 legal: proof: e4 a5 h4 g5 c4 d5 cxd5 f5 exf5 gxh4 b3 a4 Qc2 a3 Qc3 Nd7 Qb2 Nb8 Ke2 axb2 a4 b5 Ke1 b4 Na3 bxa3 g4 Kf7 f4 b1Q d4 e5 f6 h5 g5 c5 f5 a2 d6 e4 d7 e3 d5 c4 b4 h3 b5 h2 d6 e2 Bg2 h4 Kd2 e1R Ne2 h3 Bf3 c3+ Ke3 c2 Kd2 Ra6 Bc6 Nh6 Bf3 Qb4+ Nc3 Re7 Ba3 c1N Re1 h1R Kd1 h2 Nd5 Nb3 Bc1 Na5 Ne3 Rf1 Rb1 h1Q g6+ Kg8 g7 Kf7 g8R a1N Rg6 Nc2 Rb2 Nd4 Rbg2 Bg7 R2g4 Rf2 Bd2 Ne6 Bc1 Qg8 d8Q Qh7 d7 Bb7 Qc8 Bd5 d8R Ba2 Rd7 Rd8 Bd2 Qh3 Rb7 Nd7 Bc1 Ndf8+ Bd2 Kg8 f7+ Kh8 f6 Nf5 Qc4 Bh6 Qc8 Bf4 Rh6 Nfg7 Qc4 Ng6 f8B Bc7 f7 Qf1 Qb3 Qd3 Qc4 Ree8 Bc5 Re7 f8B Kg8 Bd4 Kf7 Bb2 Qb1+ Bc1 Kf6 Rh2 Qh3 Qd5 Qf1 Rh3 Qfd3 Rh6 Nd4 Rf4+ Ngf5 Nc2 Kg5 Bg7 Nf8 Ne3 Rg6 Qg8 Rc6 Be5+ Ng7 Re6 Rb6 Rg4+ Kh5 Bf4 Rc6 Re4 Rf6 Bg5 Kg6 Re6 Nc4 Rd6 Na5 Ra6 Nde6 Bh6+
4B2K/bq1PrbNR/2nN2N1/2n1bR2/rNrRn3/2P4q/3n2b1/1R3Q1k b - - 0 1 illegal: No possible last move, all moves rejected
bR2nrB1/7B/1rQR1P1k/R4r2/P3bbK1/5RBN/b3b2p/Bqb4n b - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 f5 cxd5 g5 exf5 gxh4 Na3 c5 Nc2 b3 Nb4 cxb4 Ke2 Kf7 Kf3 Kg7 g4 h5 d4 b5 a4 e5 g5 b2 d6 b1R d7 b3 g6 b4 d5 h3 d6 b2 Be2 h2 Qd4 h4 Bf4 b3 Bd1 h3 Ra2 Ne7 Qd3 e4+ Kg4 e3 f3 e2 Qa6 e1B Bg3 Rh5 f4 Kh6 f6 Nf5 g7 Bd2 g8B Qb6 d8B Nd7 f7 Bc1 Be7 Nf6+ Kf3 Ne8 Qc4 Ba6 d7 Rb8 Ba3 Bd6 d8R Qb4 Qc6 Be2+ Kf2 Rb6 f8R Ra1 Rc8 b1B Rd2 b2 Rb8 Be4 Bc2 b1B Bb2 Ba2 Rf7 Rb1 Ba1 Rb3 Rd5 Rc3 Ra7 Qb1 Raa5 Rg5 Rd4 Rc5 Rd5 Rg7 Rd3 Rf7 Rf3 Rf8 Bd3 Ne3 f5 Nf1 f6 Bdf4 Qd7 Ba8 Bdh7 Rf5 Qc6 Bd3 Ne2 Ba6 Rg1 h1B Rg2 h2 Ng1 Be2 Nh3 Ne3 Rg1 Bg2 Rd1 Nf1 Rd6 Bh1 Re3 Be4 Rf3 Bg5 Bh4 Ng3 Kg2 Nh1 Be1 Nf2 Kg3 Nh1+ Kg4 Bgf4 Bg3
qRN5/nR4Kb/N1rrbr1R/2P1B3/6b1/NnPb2p1/1Nq3rQ/1Rk5 b - - 0 1 illegal: No possible last move, all moves rejected
1N3KQ1/1rRpn1Nb/3nr1B1/1P3B1q/NN4n1/B1rn4/3P2Bq/1b3rk1 b - - 0 1 legal: proof: f4 c5 a4 e5 b4 exf4 g3 b5 axb5 cxb4 Bh3 f3 Bg2 Nf6 Bf1 Ng8 Na3 h5 Nb1 f5 Kf2 Bd6 Ke3 f2 Kd3 f4 Ra6 Be5 Rg6 f3 Rg4 Bf4 gxf4 hxg4 Kd4 Ke7 Kd5 Kf6 Kd6 Kf5 c4 Ke4 h4 a5 e3 g5 h5 a4 c5 a3 h6 g3 c6 g4 c7 g2 h7 g3 f5 a2 f6 a1N f7 b3 f8N b2 Bc4 f1N Ne6 f2 Qb3 Na6 Be2 Ne7 Na3 b1B Bg4 Nc5 Nc2 Ra7 Ba3 Re8 h8N Bb7 c8B Nh2 Ne2 g1R Nf7 f1R Ng7 g2 Nb4 Nc2 Bf5+ Kf3 e4+ Kf2 e5 Ne3 e6 B7e4 Nc3 Rb7 Ne5 Nhg4 Nec6 Nd3 Nb8 Rc1 Qa2 Rgf1 Na4 g1Q Qc4 Rc3 Qd5 Ng6 e7 Qg2 Rh3 Kg1 Qg8 Qh1 Rf3 Qh5 Rh3 N4e5 Rf3 N3g4 Re3 Qa5 Re1 Qa7 Rc1 Qf2 Rc2 Qfh2 Rc1 Rf8 e8B Ne7 Beg6 Re8 Be6 Ra7 Bb7 Bf5 Bg2 Rb7 Bgf7 Bh7 Bg6 Rb3 Rc8 Rc3 Rc7 Nf4 Bef5 Nc4+ Kc5 Nd6+ Kd4 Nh6 Ke5 Nd3+ Kf6 Rd8 Ne8 Ng4+ Kg7 Rc8 Kf8 Rd8 Rc6 Rc8 Rc4 Rc5 Ng7 Re5 Rc6 Re6 Rc7
q2kN1Bn/1b1P2p1/1N3q2/1Kn2B1N/N1r1R1qq/B3qPr1/1QB2n1r/8 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 gxh5 a5 e3 axb4 Bg2 d5 Kd2 d3 Bf1 d4 Ke1 d2+ Ke2 Ra6 Nf3 Ra7 Ng1 Ra8 Kf3 e5 a4 Bc5 Kg2 Bb6 Ra3 e4 Rc3 d3 Rc6 Bd4 Re6+ fxe6 exd4 Ke7 Nh3 Kd7 Ng1 Ke8 h4 b5 c4 e3 Kf3 e5 Ke4 e2 a5 e1N c5 b3 h6 b2 d5 b4 f3 b3 c6 Ng2 h7 Nh6 d6 Qe7 Kd5 e4 Kc4 e3 c7 e2 a6 e1R a7 Re5 h5 Na6 Nh3 Qd8 Nf4 Ng4 h6 Nc5 Kb5 Qf6 Rh4 Nf2 Nd5 Rg5 Nbc3 b1Q Nb6 b2 Nca4 Qa2 Qb3 b1Q Qb2 Bb7 c8B d1Q Bf5 d2 d7+ Kd8 B1d3 Qg1 Bc2 d1Q Re4 Rc8 a8B Qa3 Be3 Qba2 Bc1 Bd5 Bb7 Qdd4 Bc6 Qae3 Ba8 Rf8 h8N Nh4 h7 Qg4 Ng6 Rh8 Nf4 Ng6 Nh5 Qh4 Bb7 Rg3 Ba6 Ba8 Bb7 Qg4 Bd5 Bb7 Bg8 Qfh4 Qc3 Qdf6 Ba3 Ne6 Qa1 Rc4 Qb2 Nc5 Bge6 Re8 Bg8 Re5 h8N Rd5 Re5 Rd1 Re7 Rh1 Re4 Rh2 Nf7+ Kc7 Ng5 Nh8 Nf7 Qa1 Nd6 Kd8 Ne8 Qa2 Bb4 Qaa3 Nc3 Qa7 Nca4 Qa8 Ba3
r3r1N1/7K/r1R4b/R4R1b/nN1Q1b2/N1Bq1P2/P1bRpr1b/2Nrk3 b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b4 axb4 Be2 f5 Bg4 Nc6 f3 Nd4 f4 Nf3+ gxf3 fxe4 Kf2 hxg4 Ke2 Rh6 Ke1 Rh8 Kf2 Kd7 Kg3 Kd6 d4 b5 h4 g5 f5 e5 f6 c5 h5 b3 f7 b2 h6 c4 h7 c3 Qf1 b4 Bd2 b3 Qf2 c2 Qe1 c1B Qe3 Ra6 Qe2 e3 Ba5 e4 Qb5 e2 Rh6+ Nf6 Rh4 e1R Ne2 e3 Nf4 Bh6 f8R Nd7 Rf5 Nc5 Bd2 Na4 Na3 b1B Nd3 b2 Qc4 Bc2 Rh5 b1R Bc3 Rb2 Rb1 Re8 h8N Rd1 Ng6 e2 Ne7 Rb8 Ng8 Rba8 Ra1 Be6 Rb1 Bf7 Rb7 Rf1 Rc7 Rf2 Rc5 Be3 Nc1 Bd2 Ra5 Bg6 Rh1 Bh5 Rd1 Be3 Rd2 Qd7 Qd3 Qb5 Qe4 Qd3 Qf4+ Kd7 d6 Kc6 d5+ Kb6 Nb5 Kc5 Qe5 Kc4 d7 Bc5 d8N Bd6 Bd4 Bc7 d6 Kb4 Qd5 Bb8 Na3 Bc7 Ba7 Kc3 Nc6 Bb8 Nb4 Bc7 Rd1 Bb8 Rh1 Kd2 Bd4 Bc7 Rh2 Ke1 Qe5 Bb8 d7 Bc7 d8R Bd6 Rg2 Bc7 Kh2 g3+ Kh3 g4+ Kh4 Bb8 Rh2 g2 Qh8 g1R Bc3+ Qd2 Rg2 g3 Qd4 Bbf4 Rd6 Rgf1 Rg1 g2 Rc6 Bf7 Rh1 g1B Kg4 Bgh2 Rg1 Bfb3 Kh5 Bc4 Kg6 Bf7+ Kh7 Bh5 Rgg6 Rh1 Rgd6 Rg1 Bb2 Qd3 Bc3+ Kd1 Ba1 Qd2 Qb2 Qd5 Rd7 Kd2 Qg7 Rd1 Bf6 Ke1 Bc3+ Kf1 Qf6 Qc4 Rd2 Ke1 Qh8 Qd3 Qd4
8/r1rn1RQ1/1B1PN2p/1BPb4/2qn1nnr/2p2NK1/2k2NB1/1qN2B1b b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 Rh2 dxc4 Rh1 f5 exf5 a4 a3 c5 Qe2 c3 Qd1 c4 Ra2 Bg7 Rb2 Bd4 Rb3 axb3 a4 Bc5 bxc5 Ra7 Nh3 Ra5 Ng1 Ra8 d4 Kf7 f4 Kf6 Kf2 e5 g4 b5 d5 e4 d6 b2 a5 h3 a6 e3+ Kg3 e2 a7 e1N Nf3 c2 Nc3 b1R Na2 b4 Bd2 b3 Ba5 c1N Bb6 Ncd3 Nc1 c3 Qc2 h2 Qg2 b2 g5+ Kf7 g6+ Kf6 g7 Nh6 g8B Nd7 Bc4 Bb7 Ba6 Ng4 Bb5 Bd5 Qg1 Rc8 a8B Ra1 Bac6 b1Q Bb7 Kg7 f6+ Kg6 f7 Kf5 f8N Ke4 f5 Nc2 f6 Rc7 f7 Nf4 Ng6 Nd4 f8N Ra7 Ne6 Qg8 Nge5 Qf7 Qg2 Qg8 Rg1 h1B Ned3 Ke3 Nf2 Qf7 Nh4 Kd2 Nf3+ Kc2 Qh2 Qg6 Qh6 Qd3 Qg7 Qc4 Ba8 h6 Rg2 Rf8 Rh2 Rf5 Rh5 Re5 Rf5 Re4 Rf7 Re5 Bb7 Rh5 Bg2 Rh4 B7a6 Qcb4 Bbf1 Qc4 Bb5
2r1bqB1/NQpnPnRR/2Rn2Rb/1n2N3/5k2/P1Nbp3/1q6/3KN2r b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 e5 e4 f6 Bf4 exd4 e5 Kf7 e6+ Ke8 Be5 fxe5 f4 Ke7 h4 Kd6 e7 g5 a3 b5 f5 d3 h6 d2+ Ke2 g4 h5 e4 f6 Ke5 h7 b3 f7 e3 d6 g3 h6 b4 d7 b2 Qe1 d1N Ra2 b3 Qb4 g2 Qb7 Nf6 Nc3 b1B Nf3+ Kf4 Ne1 b2 Rg1 Ne8 Ra1 Bg7 f8N Nd6 Ra2 Qe8 d8N Nd7 Nc6 Bc2 Na7 b1Q Ra1 Qb2 Rb1 Qd8 Rc1 Bg6+ Rc2 Be8 Ng6+ Kg4 Ne5+ Kf4 Qb5 Bb7 Qb6 Be4 Qc6 Rc8 Qb7 Rf8 h8R Rf6 h7 Bh6 N1f3 Bd3+ Ke1 Rf5 Rg8 Rh5 h8R Rh2 Rg7 Rh1 Nb1 Nc3 Rhh7 Ncb5 Nc3 Bf5 Bc4 Bd3 Rf1 g1N Bg8 Nh3 Kd1 Ng5 Rg1 Bf7 Ne1 Qf8 Rc1 Be8 Rg3 Ngf7 R3g6 Bg5 Nb1 Bh6 Rc6 Be4 Nc3 Bf5 Ng4 Bd3 Ne5
b6q/3b2RN/1NnP1p2/2Q3q1/2K1RRRq/4NP2/1r1rpqN1/1B2bk1q b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 b5 g5 h6 Bb2 Nd7 Bf6 c5 a4 cxb4 axb5 Ne5 g6 Kd7 Bh4 f6 Bg5 Nf7 gxf7 hxg5 Ke2 Kd6 c4 Kc5 h4 Kd4 c5 e5 c6 a5 f3 e3 d3 g4 b6 g5 c7 a4 h5 a3 b7 b3 b8N b2 h6 a2 h7 g3 Nh3 g2 Ng1 e4 Na6 g4 Nd2 b1B Nc4 g3 Nb4 Rb8 Nd5 Ne7 Qc1 Nc6 Ndb6 Bd7 c8R Bb4 f8N Be1 Nh3 g1Q Nf4 g2 Rc7 Qh2 Rg1 Qh4 Rb7 Bc2 Rb1 a1Q Rb4 Qa5 Qa3 Qag5 Ra4 Rg8 h8R Qc8 Nh7 Rd8 Re8 Bb3 Rh1 g1Q Ng2 Bc2 Rh3 Qh1 Rg3 Bb3 Rg4 Ba2 Kd1 e2+ Kc2 Qf2 Nce3+ Bc4 Ra8 Bd5 Kb2 Qhh4 Qf8 Qh1 Ka3 Kc3 d4 Kd2 Qc5 Kd3 Ra4 Kd2 Nf5 e3 Rc7 Be4 Kb3 Rb7 Kc4 Qb8 Nc8 Rb2 d5 Kd1 Rca7 Qbh2 Nb6 Qhh4 Nf8 Qh8 Nh7 Bc8 Ne7 Nb4 Ng6 Bd2 N2h4 e1Q Ng2 Qfe2+ Kd4 Qeh4 Rg7 Qef2 Bd3 e2+ Ne3+ Ke1 Nf4 Rd6 Bb1 Bcf5 Ra3 Bd7 Rd3 Bc3+ Kc4 Bd2 Rd4 Bc3 Nd1 Kf1 Ng2 Be1 Re5 Bc6 Re8 Ba8 Re5 Bf5 Rdf4 Bd7 Ree4 Nc6 Rge7 Re6 Rg7 Re5 d6 Rd5 Ree7 Rd3 Ree4 Rdd2 Nde3+
3Nn1K1/1n3P2/n3BP1B/b3BR2/b1n5/1pn2p1q/b1RQR1R1/rB1n1k2 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 b4 dxc4 f6 axb4 h4 Nd7 f5 Bg7 Nc3 Bf8 Nce2 Nb8 Nf4 gxf4 g4 b5 g5 Ra3 g6 Rf3 Rh3 Rg3 Rh1 Rg5 hxg5 Ba6 Ke2 Bb7 Ke1 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kh5 Ke4 d4 c5 a4 e5 g7 f3 f7 c3 a5 c2 g6 c4 d5 c3 d6 b3 d7 b2 a6 b1B a7 b4 a8R b3 Bh6 c1N Nh3 c2 R8a5 Na6 Bb5 Ba2 Ng5+ Ke3 Bc4 Kf2 Ne6 e4 Rb1 e3 Ra3 e2 Nc7 e1N Qd5 Bb4 Ne8 Ng2 Rh3 Ba5 Rh4 Ne3 Nd6 Nd3 Nb7 c1N Rh2+ Kf1 Re2 Ndc5 Bd3 Nc4 Rbb2 Nf6+ Kg5 Qf8 g8B Ne8 d8B Bd7 Bb1 Ba4 Bc7 Qe7+ Kh5 Qe6 Nd8 Nb7 Be5 Qd7 Rec2 Ne2 Qd2 Nc3 Kg5 Ned6 Kf6 Qc8 Kg7 Ne8+ Kf8 Qd7 Bg5 h5 Be3 h4 Bh6 Bb5 Ra4 h3 Rb4 Ba4 Rb5 h2 f6 h1N g7 Ne3 Qd3+ Ke1 Re2+ Kf1 Bd4 Qc6 Bg5 Ng2 Qd2 Bc7 Bf5 Qe6 Ra5 Ne3 Rd5 Rh4 Bh6 Nf2 Bgh7 Nc4 g8R Ba5 Rg2 Rh1 Kg8 Qd7 Bg4 Qf5 Rc5 Qh5 Bd3 Qh3 Be6 Rg1 Rf5 Rh1 Rgg5 Rg1 Be5 Rh1 Bg3 Kg2 Rg6 Rd1 Be5+ Kf1 Rg2 Ra1 Bb1 Nfd1 Rc2
1N2Br2/Kp4rk/nR1rr1n1/N2NprbQ/2R1N3/1P1Pr3/n2q4/1RR5 b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 Qb3 gxh4 Qa4+ Qd7 Qd1 Qd8 b3 c5 Qe2 a5 Qd3 a4 Bb2 a3 Qc2 Bd7 Qd1 Bc6 dxc6 axb2 Ke2 Kf7 Ke3 Kg7 g4 h5 f4 c4 a4 h3 f5 c3 g5 e6 g6 c2 c7 c1N c8R h2 a5 h4 f6+ Kh6 a6 h3 a7 Qe8 Kd4 e3 g7 e2 f7 e1R Nf3 Na6 Nc3 b1R Ne5 Na2 Nc6 Ne7 g8N+ Kh7 Na5 Qd8+ Nd5 Ng6 Rc4 Re3 Qh5+ Bh6 f8R Rbe1 Rb1 Qd7 Rf6 Rd8 a8N Rf8 Rg1 h1R Nb6 h2 Be2 Qd8 Nd7 Rf1 Nb8 Rf5 Rgf1 Rg1 Rfc1 h1R Bd1 Rgg5 d3 Rhe1 Bf3 Qc7 Bh1 Qh2 Be4 Qd2 Bh1 N6b4 Kc5 Na6+ Kb6 Rd8 Ka7 Rd6 Nb4 Rgg1 Bc6 R1e2 Nd5 Rg4 Nge7 Rf8 Nc3 Re1 Be8 Rgg3 Qd1 Bg5 Ned5 Bh4 Ra1 Re4 Bb5 Nf4 Nd7 Rg7 N7b6 Rdd8 Rab1 Ng6 Be8 Bg5 Nd7 R1e3 Nb8 Ree5 Ne4 Rdd7 Rf7 Rd8 Rfc7 Rd6 R4c6 R5f6 Rb6 Ref5 R7c6 e5 R6c4 Rfe6 Qh5+
R1Nb1nbq/3RP1N1/rbP3n1/bk3qb1/2R3Q1/8/bppN4/NB1RK3 b - - 0 1 legal: proof: f4 e5 b4 exf4 a4 h5 g4 hxg4 Ba3 c5 bxc5 b5 Bb2 b4 Bc1 a6 c4 a5 c6 d6 c5 Nf6 c7 Nbd7 c6 Rb8 Bb2 Ng8 Bd4 Rb5 axb5 Nb8 Bc5 dxc5 d4 f5 h4 g5 e4 a4 d5 g3 b6 b3 d6 f3 e5 f4 e6 g2 h5 c4 h6 g4 d7+ Ke7 b7 f2+ Kd2 Kd6 h7 Kc5 Na3 c3+ Ke2 c2 Nb1 a3 Qd4+ Kb5 Qf6 g3 Rh4 f3+ Kd3 a2 Qh6 Bb4 Rh1 Ne7 Qf4 Ba5 Rh3 Ng6 Ne2 g1B e7 g2 Qg4 Bh2 Nd2 g1B Bg2 f1Q Rd1 a1B Rh4 f2 Bd5 Bf6 Bg8 b2 Ba2 Bg5 Bb1 Qe8 d8N Be6 c8N Ba2 Ne6 Bhc7 Ng7 Nd7 b8R+ Bcb6 Ra8 Bd8 Ra7 Ndf8 Rd7 Rg8 h8R Qh3+ Qf3 f1B Rc4 Bgb6 Qg3 Bg2 Nc1 Qf5+ Ke2 Bd5 Qg4 Bf7 Ke1 Be6 Rh1 Rh8 Nb3 Bg8 Na1 Rh3 Rd6 Ra3 Rh4 Bc3 Rh5 Ra6 Rd7 Bca5 Rh7 Qef7 Rh3 Q7f6 Rhd3 Qd4 Ra7 Qdf6 Ra8 Qc3 Rdd4 Qh3 Rd6 Qh8 Rd7
q1N1rBNn/Pp1B1P2/3nn2K/1kNB4/p2r2bB/r2r4/N2Q2n1/n4R2 b - - 0 1 illegal: No possible last move
r1N2Bb1/N4B2/1n1P2Rb/pb1Bb1kq/2P1pN1p/b1r5/nNB5/5QK1 b - - 0 1 legal: proof: b4 b5 e4 d5 c4 g5 h4 c5 bxc5 gxh4 a4 f5 axb5 fxe4 Ra3 d4 Rc3 dxc3 d4 Kf7 f4 Kg6 Kf2 e5 g4 h5 b6 a5 d5 c2 b7 h3 f5+ Kf6 d6 h4 c6 h2 g5+ Kg7 c7 Nh6 f6+ Kg6 f7 Ng8 Bd3 Na6 b8N Nb4 Ne2 Be6 c8B Na2 Nc6 Nf6 Qf1 Nd5 Rg1 h1B Nbc3 Nb6 Na7 Qe8 Na4 Rg8 Bb7 Bh6 f8N+ Kf5 Bd2 c1B g6 Ba3 g7 Qh5 Nd7 Rgb8 Be3 Bg8 Bd5 Bg2 Nf4 Kg5 Nb2 Re8 Bd4 e3+ Ke1 e2 Kf2 Rf8 Bc2 Rf5 Bf7 e4 Bc3 Rb5 Bd5 Rb3 Bd4 Rc3 Be5 Bf7 g8B Be6 Bg7 Bf7 Rh1 e1B+ Kg1 Bg3 Bf8 Bh3 Rh2 Be8 Bgf7 Bg4 Rg2 Be6 Nf6 Bb5 Ng8 Bf5 Ne7 Bh7 Nec8 Bg8 Kh1 Kf5 Rg1 Bh2 Rg6 Bg3 Rf6+ Kg4 Kg1 Kg5 Ng2 Be5 Nf4 Rh3 Re6 Rc3 Rg6+
2BrN2K/p1pb1QrR/2N1B3/1p3bB1/2N1B1Pr/3n2r1/2P1nqN1/5kb1 b - - 0 1 legal: proof: e4 f5 h4 g5 hxg5 e6 d4 e5 dxe5 fxe4 b4 Kf7 a4 Ke7 a5 Ke8 a6 bxa6 b5 Bd6 b6 Be7 Ra5 Bf8 Rb5 axb5 Kd2 Ke7 Ke3 Ke6 Kf4 h5 g4 d5 b7 h4 g6 d4 g7 Kd5 e6 h3 Kf5 h2 Kg6 e3 f4 Ke4 f5 e2 f6 e1R e7 d3 e8B d2 f7 Ke3 Ne2 Kf2 Nbc3 Nf6 g8B Rh4 Nd5 Na6 b8N Ne4 Nc6 Nb4 Ne3 Nc3 Nf4 Qd4 Nfg2 Ne2 Nc4 Bc5 f8N Bd7 Be6 Rd8 Nh7 Nd3 Nf6 Bb6 Kg7 Qe3 Rg1 h1B Bg6 Qf3 Bgf5 Qf4 Ne8 Bc5 Nge3 Be4 Bg2 Qf3 Rh1 Rg1 Rh3 Qf4 Bf3 Rg3 Ng2 Qe3 Qh1 d1R Kg8 Qd4 Bg5 Qf6 Qh2 Kf1 Qh1+ Bg1 Rh2 Bd5 B3e4 Qd4 Rh3 Qf2 Qh2 Rf3 Qf4 Rg3 Ne7 Bb7 Nc6 Bbc8 Kg7 Rh7+ Kg8 Rg7+ Kh8 Rb1 Rh7 Rb3 B4d5 Rh3 Bfe4 Rh4 Qf7 Ra3 Ne7 Rb3 Bb7 Ra3 Nc6 Rc3 B6d5 Bf5 Be6 Bd7 Bc8 Nc5 Nb8 Rg3 Nc6 Nd3 Be7 Nb2 Bf6 Nd3 Bg5
2B2r2/2pNQpN1/B1KpB3/rRB1bNP1/5r2/2N3pk/b2Ppb1b/1q6 b - - 0 1 illegal: No proof kernel
4n3/K2Rr2n/1Qbr3b/4b1pN/B1q1r1N1/1R1N2Pr/2PrkqR1/Rq4N1 b - - 0 1 illegal: No extended proof kernel
rnbq3N/2P2QRp/nR2n2P/NN1b3K/2rr2R1/1RbN3B/5b2/q2k3q b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Ra1 f3 Bf4 exf4 Kd2 f2 g4 Ke7 e4 Kd6 Ke2 Ke5 Kf3 d5 b4 f5 h4 a5 c4 d3 h5 Kd4 h6 a4 e5 a3 c5 a2 e6 d2 b6 Na6 b7 Nf6 b8R Nd7 c6 Bc5 Rb6 Ndb8 Ne2+ Kd3 g5 d4 Bh3 f1N g6 Ng3 b5 Ne4 Qf1 Kc2 g7 d1Q g8R d3 e7 d2 e8N Bf2 Rg7 Nec5 Rhg1 Ne6 Nc3 Rf8 Rb1 a1B c7 Rf6 Ne4 Bc3 Rb3 Qa1 Nc5 d1R R1g4 Rd4 Nd3 Rf8 Nd6 Re8 Qg2 Kd1 Nf7 Rc4 Qg3 Re7 Nd4 Rd7 Nh8 Rd6 Kg2 f3+ Kh2 f4 Qh4 Bfe1 Qh5 f2 Qf7 f3 Kg3 Rd5 Nc2 Rdd4 Na3 Qd7 Kh4 f1B+ Kh5 f2 Rc6 Bg2 b6 f1Q b7 Bd5 Nb5 Bf2 Rb6 Nc6 b8N Qh1 Rh4 Qd8 Rhg4 Ne5 Nc6 Nd7 Na5 Ndb8 Qd7 Qa3 Qe8 Qa1 Qf7
4b1K1/1N6/n3n1R1/RpRPR2Q/NPq4q/r1pN1n2/1b2n2r/2bkN1Br b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 e5 Bg2 d5 cxd5 exf4 Be4 a4 Bc2 Nc6 Bb3 axb3 Ba3 Nb8 Bb2 Na6 Bc1 Nb8 Kf2 Ke7 e4 Kf6 h4 Ke5 a4 Kd4 d3 f5 d6 c5 d7 g5 a5 b5 e5 g3+ Kf3 g2 a6 g4+ Kf2 g3+ Kf3 c4 a7 b2 h5 Bh6 e6 Nf6 e7 Ne8 Qa4 Na6 Nc3 b1N Qd1 Ng7 e8R Qh4 d8N Ne6 Na4 Nc3 Nb7 Bd7 Rb1 Bg7 h6 Ne2 h7 Bh6 Rc8 Be8 Rc5 Bg7 Ra1 Bh6 Nb2 Kc3 d4 Bg7 d5 Be5 Qf1 Kc2 Nd3 Bb2 Ra5 c3 Qf2 Kd1 Be3 Qf6 Rh6 Qh4 Nh3 g1R Ne1 g2 Rg6 Rh1 Qf1 Rh2 Qh1 g1B Bd4 Be3 Nf2+ Kc1 Nfd3+ Kd1 Rc6 Bec1 Bg1 Rd8 a8N Rb8 Nb6 Ra8 Qg2 Ra7 Rc5 Rh1 Qg5 Ra8 Kg2 f3+ Kf1 f4 Qh5 f2 Kg2 f1N Kf3 Nh2+ Ke4 f3+ Kf5 f2 Na4 f1Q+ Ke5 Rf8 h8R Rf2 Rh7 Rg2 Re7 Nf3+ Kf5 Qg4+ Kf6 Rgh2 Rf7 Qfh3 Ke7 Qd4 Rf5 Qc4 Re5 Qhh4+ Rf6 N6d4 Kf8 Ne6+ Kg8 Qa2 Rg6 Nb8 Nb6 Qac4 Ra2 Ra4 Ra3 Na6 Ra1 Ra3 Ra2 Rb3 Ra5 Ra3 Na4
N2N1nr1/1Prk1p2/BnN1N3/1n2bb1K/2bq3R/2RrpPQ1/1r5q/R6R b - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 dxe4 Ba3 g5 axb5 gxh4 b6 Qd5 b5 Qd8 Bb4 cxb4 Ke2 h5 c4 e5 g4 a5 d4 a4 c5 h3 b7 h2 d5 a3 d6 e3 Kf3 e2 b6 e1R c6 b3 g5 e4+ Kg3 e3 Kh4 b2 c7 a2 Qd2 Ne7 g6 Bg7 Nh3 Nd7 b8R Ra7 Be2 Rd1 Ng5 Nf8 Ba6 Be5 g7 Nd5 g8R Kd7 Rf1 h1B Nc3 b1R Nb5 Rb2 Qe1 Rd3 Nd4 Bf3 Nc6 Be2 Rg6 Rg8 f3 Qf6 Rh1 Qf4+ Kh3 h4 Rh6 Qd4 Ne6 Rb7 Ra8 Ra7 Rc1 a1N Rc3 Nc2 Qg3 Na3 Rh7 Nb5 Rh5 Rb7 Ra7 Ke8 Rh8 Bd7 c8N Rc7 b7 Nb6 Rh5 Rd1 Rh6 Bc4 Ra8 Rd3 Rh7 Nd5 Nb6+ Bc8 Ra7 Bd7 Na8 Nb6 Rg7 Bc8 Rg4 Kd7 Rf4 Bg7 Kg4 h3 Kg5 h2 Rh4 Be5+ Kh5 Ke8 Nc5 Bf5 Ne6 Kd7 Nb4 Ke8 d7+ Ke7 d8N Kd7 Rb1 h1Q Nbc6 Qh2 Rh1 Na3 Bb5 Qc2 Ra4 Qh2 Ba6 Nb5 Raa1
bkq3Bb/nb2K3/1p1B1R2/2R1B1qp/BN3rPR/Q4rb1/1P4R1/n2b3b b - - 0 1 illegal: No proof kernel
b2qQ1K1/1pq2nNR/1P2NRrb/r2N1n2/B1pq3k/6q1/nP1NR3/2Rn4 b - - 0 1 illegal: Other
1q2Rr2/3bnB2/Nb6/Q1NBNp1P/q1q1b1B1/7N/p2r1P1B/kn2Kbq1 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 cxd4 a3 h5 Ra2 hxg4 a4 e5 Ra3 e4 Rd3 exd3 axb5 Rh5 Ba3 Rh3 Bc1 Rh8 e4 Ke7 c4 Kd6 h4 Ke5 b6 f5 b7 a5 h5 d5 c5 g5 c6 a4 b5 g3 b6 g2 c7 d2+ Ke2 a3 Qa4 d1B+ Ke1 a2 Kd2 d3 Rh3 g4 Na3 d4 Qc4 g3 Nb1 Nd7 b8N Be2 b7 Bc5 Ke1 Ndf6 Qc2 Bd7 c8B Ne7 Rh1 Bb6 Bh6 Nfd5 Rh2 Rf8 Na6 Nc3 Na3 Nb1 Nh3 g1Q b8N g2 Nc5 Qh1 Bd2 g1Q Qc3 Qhg2 Be3 Qg8 Bb7 Qc4 Nba6 Qb8 Qa5 Bf3 Bc6 Bh1 Bd5 d2+ Kd1 Ra7 Rg2 Rc7 Bg5 Rc6 Rg3 Rd6 Re3 Bg2 Re1 Bf3+ Be2 Bh1 Bg4 Bg2 Qc3 Bf1 Kc2 d1B+ Kc1 Bc2 Bf4+ Kf6 Qa5 d3 Bh2 d2+ Kb2 d1Q e5+ Kg7 e6 Kf6 Re2 Qdd4+ Kc1 Qf4+ Re3 Be4+ Kd1 Ke5 Ke1 Qa4 Nc4+ Kd4 Ne5 Qc4 Qb5 Qa4 Re2 Kc3 Re3+ Kc2 Qa5 Kb2 Re2+ Ka1 Re3 Ng8 e7 Qc4 e8B Ne7 Bef7 Qa4 Bb3 Rd2 Bbd5 Beg2 Ng6 Qfc4 Re6 Be4 Ne5 Ng8 Re8 Ne7 Bc6 Qab4 Ba8 Qa4 Bad5
BnkbK3/Rb6/1P2NBR1/bR1q4/1Q3p1R/Br2BPn1/bpr2p2/4b2n b - - 0 1 illegal: No proof kernel
K1n5/4rr1q/1b4R1/2pP1NB1/Q4rnB/p1Nb1bn1/Pp1kB1N1/1Bb1N3 b - - 0 1 legal: proof: f4 c5 b4 e5 bxc5 exf4 g4 h5 Na3 hxg4 Nb1 d6 c4 Qg5 c6 Qh5 c7 Na6 c5 Qd5 c6 Qd3 Na3 Nb8 Rb1 Qd5 Rb5 Qd3 Rc5 dxc5 Bh3 Qd4 Bf1 Qd8 Kf2 Ke7 e4 Ke6 d4 g5 h4 b5 h5 f5 h6 a5 h7 f3 Ke3 f2 e5 Kd5 e6 a4 e7 g3 e8B g2 Bg6 b4 Rh6 f4+ Kd3 b3 Nf3 g1R Nd2 f3 Rh1 g4 Ne4 b2 Bg5 g3 Bh6 g2 Bd2 Nh6 Nb5 a3 Be3 Qe7 Nd2 Ra7 Qa4 Bg4 c8N Nd7 c7 Nb6 Ncd6 Qd7 c8N Be7 Rh2 Re8 h8B Bd8 N6c4 Qh7 Bf6 Rf7 Bh4 Ree7 N8d6 Nc8 Rh3 Bh5 Rg3 Bb6 Bf5 Rh1 Rg6 g1B Beg5 Bg4 Be2 f1N Kc3 f2 Nf3 Ng3 Ne1 Bh5 Bb1 f1B Bed3 Bfe2 Nf5 Be3 Kb3 Bc1 Kc3 Bd1 Be2 Bc2 Nce3+ Ke4 Kc4 Rf1 d5 Rf4 N3g2 Bf3 Nc3+ Ke5+ Kb5 Ng4 Kc6 Bce4 Qa7 Bd3 Ng7 Kd4 Qd7 Bb5+ Kb7 Bc4 Ka8 Bd3 Nb5+ Kc4 Nf5 Kb4 Na7 Kc3 Qa4 Kd2 Nb5 Re8 Nc3 Re6 Bc2 Ree7 Bb1
2N1n3/1q1bKp2/QbBPRB2/bpRR4/1P4n1/Br2B2k/1qb1pr2/2b3R1 b - - 0 1 illegal: No proof kernel
Rn1k3R/P4r2/n2B1pK1/2R1p3/2r3bq/4P1p1/NN1RNnNn/Qn3qb1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g5 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Qd7 Ba3 Qd6 Bc1 Qd8 Kf2 b5 a4 e5 d4 c5 h4 c4 h5 f3 Kg3 c3 Kh4 f2 h6 f1Q Kh5 c2 a5 f6 a6 g3 e3 b3 g6 b2 g7 b4 h7 b3 a7 Bb4 d6 Nd7 d5 Rb8 Nc3 b1N Na2 b2 Ne2 Nc3 Rh2 b1N Kg6 Na4 Ba3 Nh6 g8N c1N Ne7 Qc7 Nf5 Qc4 Nh4 Nd3 Ng2 Rf8 h8R Nf2 Qc1 Qh4 Qb2 Ndb6 d7+ Kd8 Qd4 Ba5 Bd6 Nhg4 Qd1 Be1 Qd4 Nd2 Rc1 Nc5 Qa1 Na6 Rc5 Nb1 Nac1 Na8 Nd3 Rb4 Nb2 Rc4 Bc7+ Ke7 d8N Rf7 d6+ Kd7 Nc6 Nb8 Rh5 Ke8 Nb4 Be6 d7+ Ke7 Rh3 Nh2 d8R Bg4 Rd2 Ke8 Bd6 Nc7 Rg5 Nca6 Na2 Kd8 Rh5 Nd1 Rh7 Bf2 Rh6 Bg1 Rh8+ Kd7 Re8 Nf2 Nac3 Nc6 Ra8 Ncb8 Na2 Qh8 Rh5 Kd8 Rg5 Qh3 Rh5 Qh4 Rh8+
1K2NQ2/2R2p1n/1p1qkN2/1P3R2/1P1q3N/1B1npRb1/1R4r1/rrrb1N1b b - - 0 1 illegal: No proof kernel
8/p1Pr3B/2rQN2n/Rn3B2/P1nrR2k/1bRrB1q1/1B2p1pn/bRK5 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 Nc3 f6 Nce2 fxg5 Ng3 hxg3 Qf3 g4 Qe2 Kd7 Qd1 Ke8 f4 Kf7 h4 Kg6 c4 Kh5 a4 g5 d4 e5 Kd2 b5 f5 b4 d5 g2 f6 b3 f7 e3+ Ke1 e4 d6 b2 d7 b1N c6 e2 c7 g3 c5 g4 c6 Na6 Nh3 g1R Ng5 g2 Nf3 g3 Bg5 Nh6 Qd4 Na3 Kd2 e1N Rd1 e3+ Kc1 Nc4 Rd3 Rh7 Rc3 Bg7 Bd3 e2 Be3 Qg8 d8R Be6 c8B Nc7 f8R Nb5 c7 Bd5 Ng5 Nf3+ Kc2 Rf1 Ne6 g1R Rf4 g2 Re4 Nh2 Qb6 Rb1 Qd6 Rb3 Rd7 Ra1 Rb1 Bd4 Rd8 Qg3 Kc1 Rd7 Re8 Ra2 Re5+ Kg4 h5 Kh4 Bh7 Rb8 Rf5 Rb6 Rg5 Rd2 Re7 N6g4 h6 Rc6 Re5 Rd3 Re4 Rb4 Rf7 Na5 Rf5 Bb3 Rfe5 Nc4 Rg5 Nba3 Ra5 Bh8 Bg6 Be5 h7 Nb5 h8B Bf6 Bh7 Bg7 Rc2 Ba1 Bhd4 Rf7 Bb2 Rd7 Nf4 Nh6 Rc3 Rd8 Bcf5 Rd7 Bg1 Nca3 Bf2 Rbd4 Be3 Nc4 Ne6+
2b1R1Q1/N2n3K/p1nB3b/2NB1P1b/6Bp/r3rqp1/Bp2k2P/3Nq1Nq b - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 a4 f5 Ra2 fxg4 Rb2 exd4 axb5 Nf6 b6 Ng8 b5 Kf7 Rb3 Ke8 Rb4 cxb4 Kd2 Ke7 Kd3 Ke6 Ke4 h5 f4 g5 c4 b3 c5 a6 b7 b2 b6 g3 c6 g4 c7 h4 Nc3 g2 Qb3+ Kd6 Kf5 Kc5 Kg6 d5 e4 g3 e5 d3 e6 Kd4 e7 d2 e8B Ke3 Bc4 d4 Bd5 d3 Nh3 g1Q Bef7 Qf2 Nd1+ Ke2 Bfe6 Nd7 b8N Qf1 b7 Qe1 Nc6 Bh6 b8N Qf8 Na7 Rh7 Rg1 Re7 Rh1 Re8 Kh7 Ne7 Rg1 Nc6 Qa2 Nde5 Nd7 Rb8 Nc5 Rb3 Bf7 Ra3 Rg2+ Kf1 Re2 Nd7 Qc4 Re3 Qb3 Rf3 Re8 Re3 Qb8 Ke2 Ba2 Qh1 Bfd5 Bb7 Qd8 Bc8 Qg5 Qf5+ Qg6 Qh5 Qe6 Q5f3 Qg8 Bb7 c8B Qe1 Ndf2 d1Q Bd2 Qa1 Bb4 d2 Nd1 Qeh1 Ndf2 Qae1 Nd1 Nde5 Bg4 Bc8 f5 Nd7 Bc3 Re4 Be5 Ree3 Ndf2 d1B Bd6 Bc2 Nd1 Bb3 Be4 Bf7 Bed5 Bh5 Ng1+
3r4/RB3b1B/3p2nq/4NppQ/1nq1bk2/1r2Pr2/RR1b1RPp/K1B3B1 b - - 0 1 illegal: No possible last move, all moves rejected
4b1B1/ppBk1Q1p/r2N1r1b/BP5K/1R1b3n/npq4b/1P2N2n/N3NB2 b - - 1 2 illegal: No proof kernel
1n3q2/K3N1Bq/1ppr1R1p/N3br1P/1qB1q1bk/3n3P/4N1Bp/1BN1Q3 b - - 0 1 illegal: No proof kernel
N2NB3/qb3Bkp/rP1K1p1Q/r4pr1/ppNN1P2/2RB2n1/4nbnB/8 b - - 0 1 illegal: No proof kernel
3B1k1R/3BprR1/N2n1pBr/2prP3/K2pr3/4Rpb1/2PB1Rn1/2b2Qq1 b - - 1 2 legal: proof: f4 c5 g4 a5 d4 h5 b4 axb4 d5 g5 Nc3 b6 Ne4 gxf4 g5 Bb7 Nf2 Bc6 Ng4 hxg4 dxc6 Qc7 Bg2 Qc8 Bf1 Qd8 Kd2 d5 h4 b5 a4 f3 e4 b3 Kc3 b2 Kb3 b4 a5 b1R+ Ka4 d4 c7 g3 c8B b3 g6 g2 h5 b2 h6 Na6 h7 Ra7 g7 Qd6 Ne2 g1B Nc3 Bf2 Bd2 Qg3 Nd5 Nb4 a6 Nf6 g8R Qg1 Bd3 Bg3 Rg7 Rd7 Qf1 Re1 a7 b1R a8R Rg8 h8B Rbd1 e5 Ne4 Rhh7 Nd6 Bg6 Nd3 Ba5 Nf4 Bd8 Ng2 Nb4 Re4 Na6 Rb1 Ra3 Rb6 Re3 Rc6 Rh2 Rb6 Rgh7 Bh6 Bf6 Rg7 Bg5 Kf8 Bf4 f6 Bg5 Rf7 Bf4 Rb8 Rg7 Nh4 Rf2 Ng2 Rh7 Nf5 Bg5 Rd5 Bd7 Rb1 Rd3 Nd6 Bd2 Rbe1 Rb8 Rh4 Rg7 Ree4 Re3 Bhf4 Rb1 Rh8 Rbe1 Rh6 R1e2 Ne1 Rh2 Ng2 Rf2 Bg5 Bb4 Ne1 Ree2 Bc1 Bd2 Rh5 Re3 Ng2 Rh1 Rg5 Rh6 Rh5 Rhh7 Rh6 Rh8+
r3nQBR/5p2/2R2Rnp/1p4rP/1P1q2rp/5bkR/Np1r2B1/B1q3BK b - - 0 1 illegal: No proof kernel
1b2r3/1pRr3r/1Nq4R/BP1r1RRK/q3N2R/1kq4r/bn3P2/1B5R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 d5 c4 g5 h4 gxh4 cxd5 Bh6 Bd3 Bg7 Bf1 Bf8 a4 c5 d4 c4 b5 Nd7 Qd3 Nc5 Be3 Nxa4 Qe4 Nc5 dxc5 a4 Bc1 a3 Qg4 Nf6 Qg8 Nxg8 Ke2 Kd7 Kf3 h5 g4 e5 c6+ Kd6 c7 Kc5 f6 Kb4 g5 c3 f7 e4+ Kf4 a2 d6 e3 g6 e2 g7 e1R d7 c2 Nc3 h3 Nce2 h2 Kg3 h4+ Kg4 h3 Nf3 Bd6 f8R Qe8 Bf4 c1Q Bg2 Nf6+ Kg5 Qc3 g8R Ne4+ Kg4 Rd1 Bd2 Rh5 Rc1 a1Q Rf5 Kb3 d8R Qec6 Ne5 Qa4 Nd7 Nc5+ Be4 Nd3 Nb6 Be6 c8R Nb2 Rg5 Bb8 Rh8 Bc4 Be1 Rd7 Ng3 Rhh7 Rcg8 Rd5 R8g6 Rhd7 Rf1 h1R Rh4 h2 Rgh6 Bc7 Bb1 Re8 Kh5 Bb8 Rh7 Kb4 Ne4 Ba2 Rh6 Kb3 Rhg4 Rg1 Rh4 h1R Bd2 Rh3 Be1 Rgg3 Rh1 Rgd3 Rc2 Rh7 Rc1 Rdd7 Rc2 R3d5 Bd2 Qd3 Ba5 Qd2 Rc4 Qc3 Rc5 Qe6 Rc8 Qec6 Rc7
3B2B1/1N1B1p2/r3Bqqq/p2Kb3/1N2R3/n1BRpP1P/1rBb2kq/8 b - - 0 1 legal: proof: b4 c5 d4 e5 a4 b5 axb5 cxb4 e4 exd4 h3 g5 Qe2 g4 Qe3 dxe3 Nd2 h5 Rb1 h4 Be2 g3 Ra1 Bb7 Nb1 Bd5 Bd3 Be6 Bf1 Bg4 hxg4 Qa5 Na3 Qc7 Nb1 Qd8 Ke2 h3 Na3 h2 Nf3 Na6 Ke1 Nc7 Nb1 Nd5 Ng1 Nf4 Nd2 Qa5 Nb1 Nh3 gxh3 Qd8 Ke2 Ke7 Kd3 Ke6 Kd4 d5 c4 a5 b6 g2 b7 b3 b8B b2 e5 Ba3 f3 Rh5 c5 Qd6 c6 Rh8 g5 Kf5 e6 Kf4 e7 Kg3 e8B Ra7 g6 Ra6 c7 Nf6 c8B Bb4 g7 Bd2 g8B Ng4 Ra4 Ne5 Be6 Nc4 Nc3 b1Q Bb2 Na3 Na2 Qg6 Bc7 Qf4+ Kc5 d4 Kd5 d3 Bd8 Qff6 B8d7 Kf2 Ne2 g1B Nec3 Rh4 Bf5 Rb4 Bfe6 Rbb6 Be2 Kg2 Bd1 Rb4 Ba1 Rb2 Re4 Bf2 Na4 Bg3 Rf1 h1Q Nc5 Qh2 Bc2 Be5 Rd1 Qh6 Re1 Bc1 Nb7 d2 Rh1 Rb4 Rh4 Rb3 Bc3 Rb2 Nb4 d1Q+ Bd3 Qe2 Bc2 Qd3+ Rd4 Qdf5 Rhd1 Q5g6 R1d3 Bd2 Re4
q1k1R2K/1Nr2P2/6Rn/Bq2BR2/1Rn3Nr/P1b4R/bRqr1n2/1q1n4 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 g5 e5 d5 cxd5 f6 exf6 Ra7 Qg4 Ra6 Qd1 Ra8 g4 h6 f4 Be6 f5 Bd7 Bh3 Bc8 Qf3 h5 Qf4 gxf4 g5 Kd7 Bg4 hxg4 Kf1 Ke8 Kf2 Ra3 Ke1 Ra8 Ke2 Kd7 Kd3 b5 Kd4 e5+ Ke4 c5 h4 f3 d4 g3 f7 f2 d6 f1N g6 g2 g7 b3 f6 b4 Kf5 b2 Kg6 e4 a3 b3 d5 e3 h5 c4 h6 c3 h7 c2 Nd2 b1Q Rh4 e2 Ngf3 e1Q Nh2 g1N Ng4 b2 Ne4 Nh3 Bf4 c1R Ra2 Qd2 Be5 Nh6 g8R Bg7 f8R Qdc2 f7 Ra7 Re8 Ne3 Rh5 Rc7 Rf5 Ba6 Nc5+ Kc8 Nb7 Bf6 Rg7 Rd1 Rgg8 Nc6 d7+ Kb8 d6 Na5 Rg7 Bc4 Rgg8 Qc8 d8B Nf2 d7 Rd2 Rg7 Qf1 Rgg8 b1Q Rb2 Ned1 Rb4 Be7 Kg7 Ba2 Rb2 Nc4 Rb4 Bd6 Rb2 Rc6 Ba5 Rc7 d8R Bb4 Rd4 Bc3 Re4 Nce3 Reb4 Nc4 Re6 Qfd3 Rg6 Qd5 Rd8 Qb5 Rd3 Qd8 Rdf3 Kc8 Rh3 Re8 h8R Qdd5 Nc5 Qa8 Nb7 Red8 Kh7 Rd4 Re8 Rd2 Re7 R8d4 Kh8 Re4 Ne3 Rh4 Ng4 Qb8 Ree6 Qa8 Re8+
qrB3n1/2n2rk1/1N5r/4P1P1/1q1BbbR1/b1RB2N1/1pB2Br1/1KB4b b - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 f4 e5 hxg5 exf4 c4 axb4 cxd5 Qf6 Qb3 Qd8 Qa3 bxa3 Kd1 b5 Kc2 f5 e4 Kf7 g4 h5 d4 c5 a5 a2 d6 c4 e5 h4 a6 f3 d7 h3 g6+ Kg7 g5 f4 a7 b4 d5 f2 d6 h2 Nd2 f3 Bh3 f1Q Ne2 c3 Ng3 f2 Rg1 h1B Nc4 Bcb7 Nb6 Qb5 Bg4 Qe8 d8B f1R Bc8 Rf7 d7 Na6 Bc7 Bc5 d8B Rb8 a8B Rh6 Rg2 Bf3 Be4 Be3 Rb1 a1R Bd3 Be4 Rb3 Ra2+ Kb1 Bf4 Be7 Qec6 Bc5 Qa8 Bf2 Rc2 Bd6 Nc7 Bdc5 Qc4 Ra3 b3 Bcd4 Qb4 Rg1 Kh8 g7+ Kh7 Bfe3 Rg2 Bf2 c2+ Kb2 Ne7 g8B+ Kg7 Bh7 Ng8 Bd2 c1B+ Kb1 Bb2 Bc1 Bc6 Bc2 Bf3 Bhd3 Be4 Ra5 Ba3 Rc5 b2 Rc4 Rh3 Rc3 Rh6 Ne2 Rgh2 Rg4 Rg2 Ng3
Nq2b3/4pN1R/Pr6/np3rN1/prP2BnN/1B3KnR/3k3p/2rN2N1 b - - 0 1 illegal: No proof kernel
2n2B1R/1b1qR2q/4kpN1/3n2R1/N1r1PnP1/4q2N/2N1nb1q/1rRB1K2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 Qb3 exf4 axb5 Bg7 b6 Bh6 b5 Bf8 Qb4 axb4 e4 Ke7 d4 c5 g4 h5 d6+ Ke6 d7 b3 b7 b2 b6 f6 Bh3 f3 Rh2 f2+ Ke2 f1Q+ Kd2 c4 Ke3 c3 Nf3 c2 Ne1 Qg1+ Ke2 Bc5 Nc3 b1N Ba3 Qe3+ Kf1 c1N Na4 Nc3 Bg2 h3 Nc2 h4 Bf3 N1e2 Rc1 Nc6 b8R Nce7 b7 Nf4 Bd1 Ned5 Rf2 Qe8 d8R h2 Rd7 h3 Rh7 Bb6 Bf8 Qd7 Rd2 Nce2 Re7+ Kd6 Rd3 Ra5 Rc3 Rb5 Rc5 Rb1 Ra8 Rh7 b8N Bb7 Nc6 Rg7 Ne5 Rf7 Nf3 h1Q+ Ng1 h2 Rca5 Ndc3 Rg5 Ncd5 Ke1 Qg2 Nh3 Qgg3+ Kf1 h1Q+ Ng1 Qh7 Nh3 Qh2 Rb8 Bc5 Ra8 Nb6 d5 Nc8 Rb8 Kc7 d6+ Kc6 Re6 Nge7 Ra8 Ned5 Re7 Qdf5 d7 Kd6 d8N Qd7 Nc6 Rg7 Rf7+ Ke6 Ne5 Qe7 Nc3 Na7 Nf2 Bb4 Na4 Be1 Nh3 Bf2 Ng6 Qe8 Rd8 Nc8 Bd6 Qc6 Rh8 Qb5 Rff8 Rc7 Rf7 Rc4 Bf8 Qd7 Re7+
qk1NNNrq/r6n/r6p/Bn3r2/3rPR2/3RR2r/4K1P1/1b1R1rNB b - - 0 1 illegal: Other
rnNr1B2/P2p2nR/B2bN2K/1b1Bpr2/4PRB1/1nk1R3/2n3n1/b5R1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 b4 g5 fxg5 a5 a4 axb4 Qd2 Na6 Qd3 Nb8 h4 Bg7 g4 Qa5 h5 Qb5 g6 Ra6 g5 Qe5 Qa3 Bf8 h6 Qg7 hxg7 bxa3 Nc3 Ra5 Nb1 Ra8 Kf2 b5 Kg3 e5 Kg4 Ke7 Kh5 Kd6 c4 Kc5 e4 Kb4 c5 f5 a5 f4 c6 a2 c7 d3 a6 f3 a7 f2 Be3 d2 Bd4 d1N Bb6 Nf6+ Kh6 Nh5 Nh3 Ba6 c8B Ne3 Na3 Kc3 Bc5 b4 Nf4 b3 Re1 a1B Be2 f1N Nc4 b2 Ne6 b1N Nd6 Na3 Bg4 Bb5 Ba6 Nac2 Nc8 Bd6 g8R Ng7 Rf8 Nd2 Rf4 Rd8 Rh4 Nb3 Rg1 Ne8 g7 Ng2 g8B Ng7 g6 Nh5 Kg5 Ng7 Ba3 h5 Kh6 Be7 Rh2 h4 Re1 h3 Re3+ Bd3 Rh1 h2 Bf7 Bd6 Rg1 Nh5 g7 h1R g8R Rh3 Rg7 Rf3 Rh7 Ng7 Nd4 Rf2 Bd5 Rf1 Ne6 Rf3 Re2 Bb5 Ree1 Bc7 Bf8 Bd6 Rf7 Rf5 Rf6 Rg5 Rf4 Rf5 Re3+
3Nn2B/1N1r1N2/1p3r2/N2qrRK1/r3Pr1n/2BP1kp1/2np3B/5bRB b - - 0 1 legal: proof: b4 d5 g4 h5 gxh5 a5 c4 axb4 d3 dxc4 Qd2 e5 Kd1 e4 Ke1 e3 Kd1 exd2 e4 Bc5 Ke2 Be3 fxe3 Ke7 Kf3 Kf8 Ke2 Ke8 Kf3 Kd7 Kf4 Kd6 h4 c5 a4 g5+ Kg3 Ke5 h6 f5 a5 c3 h5 c4 h7 b3 h6 b2 a6 b6 a7 g4 Na3 b1N Nh3 c2 Rg1 c3 Bb2 c1R Ng5 f4+ Kh4 f3 Bg2 f2 Bh1 f1R Rg2 Rf6 Ra2 Nc6 Nf7+ Ke6 e5 Kf5 e4+ Kf4 e6 g3 e7 c2 e8N Nd4 Bc3 Rf1 Ned6 c1R Nac4 Bh3 Na5 Kf3 Ndb7 Na3 Kg5 Nac2 Rb2 Rf2 Rb5 Nf5 Rc5 Nh4 Rf5+ Ke2 Bd4 Qd5 Bc5 Rd8 a8N Rd7 Nc7 Ra1 Ne6 Ra2 Ned8 Ra4 Rh2 Bf1 Rg2 Rfd6 Bd4 Nf6 Bc5 Rf8 h8B Ne8 h7 Re6 Bc3 Ree7 h8B Re5 Nh6 Rf6 Nhf7 Ke1 Be3 Rf4 Bg1 Kd1 Bh2 Ke1 Rg1 Kf2 Rg2+ Kf3 Rg1+
BNrN2RR/4bP1K/Ppn5/3q2R1/1Bp1r1n1/nN2kp1b/4p2q/2RN4 b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 h5 b4 axb4 e4 f5 g4 fxe4 Qf3 exf3 gxh5 Ra6 Nc3 Ra3 Nb1 Ra8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 h4 g5 a4 e5 d4+ Kb6 d6 c5 h6 c4 d5 Kc5 a5 b6 d7 b3 Kf5 Kd4 Kg6 g4 a6 e4 h7 g3 h5 b2 h6 e3 f5 g2 f6 Qe7 d8N Be6 f7 Qa3 d6 Nc6 d7 Rc8 Nd2 b1N Ne2+ Kd3 Nc3+ Kd4 Rg1 Bg7 Nb3+ Ke5 Nd1 Ke4 Bd2 Nf6 Bb4 Re8 h8R Bh3 h7 Qa5 Rg8 Qd5 h8R Ng4 Kh7 Na3 Rc1 Bf8 Bd3+ Kf4 Be4 e2 Nb7 Re5 d8N Be7 N7c5 Re6 Nd7 Re5 Rh1 g1Q Nb8 Qh2 Rg1 Qd4 Nc3 Ke3 Bd5 Re4 Rg3 Na5 Ba8 Nc6 Rg2 Qd5 Rgg1 Nge5 R1g5 Ng4 Nd1+
4N1n1/pRp1p2R/1nBn4/2P1Pr1b/1r3r2/Np1R1k2/5B1B/1K2RBnb b - - 0 1 legal: proof: g4 f5 c4 fxg4 h4 d5 c5 g5 Qb3 g3 Qb4 g4 Qc4 dxc4 b3 cxb3 a3 b2 Bg2 Qd5 Bf1 Qg5 hxg5 Bf5 Rh4 Be6 Rh1 Bc8 Nf3 b5 Ne5 b4 Nf3 b3 Ng1 Bg7 Rh3 Bc3 Rh1 Bb4 axb4 Bf5 Rh3 Be6 Rh1 Bc8 Kd1 Kd7 f4 Ke6 d4 Kf5 e4+ Kg6 f5+ Kf7 b5 h5 f6 Ke6 f7 g2 f8B g3 b6 h4 b7 h3 g6 h2 e5 Kf5 g7 Ke4 d5 Be6 d6 Bc4 d7 Nf6 g8B Nc6 b8R Na5 d8R Rh4 Rd5 Nb7 Bfh6 Rf4 Nh3 g1R Nf2+ Kf3 Ne4 g2 Be3 Nd6 Rb7 Rf8 Na3 b1N Kc1 Nd2 Bf2 Be2 Rb1 Rf5 Bf4 N2c4 Bh7 Ng8 Nf6 Bd1 Ne8 Nb6 Ra1 Be2 Kb1 R8f6 B4g3 Rf4 Bd3 R6f5 Bb5 Rb4 Bc6 Bd1 Bd3 Re1 Bf1 g1N Ra2 Ree4 Re2 Rec4 Re4 Be2 Rh4 Rcf4 Rh7 Nh3 Rg1 h1B Bh2 Bd1 Bc4 Be2 Re1 Ng1 B4b5 Kg2 Ba6 Bh5 Bf1+ Kf3 Rd3+
k2Nb1B1/p4p1p/1nrB1n2/1n3N1B/2N1R1rp/2Pp2bP/bK5R/1B5N b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 g5 a5 e5 a6 exf4 axb7 d6 Kf2 Na6 Ke1 Be6 Qd3 Qf6 Qh3 Rc8 Qh4 Rc7 Nd2 Qd8 Nb1 Qa8 bxa8B gxh4 Kd2 Rc8 Ke1 Rc6 Kd1 Kd8 e4 Kc7 g4 Kb8 b4 d5 h3 f3 e5 d3 b5 d4 b6 f2 c3 d2 Kc2 d1N b7 Rc5 g5 Rd5 g6 Rb5 g7 Rc5 Bd3 f1B Nd2 Nf6 Ne2 Ra5 Nc4 Nc5 Bf4 Na4 Ng3 Be2 Rh2 Be7 Nh1 Nf2 Re1 Rc8 g8B Nb6 Kb2 Bd6 Bb1 Ra4 Bg3 Bd7 e6 N2e4 e7 Rc6 e8N d3 Ng7 Be8 Be5 Bd1 Nf5 Bb3 Ree2 Bc7 Bd6 Ba2 Re1 Nd2 Re4 Nb3 Ba3 Bg3 Be7 Kc7 b8N Nd4 Bd6+ Kc8 Nce3 Nb5 Nc4 Rc7 Bd5 Rc6 Be6+ Kb7 Bd7 Rc5 Nc6 Ka8 Nd8 Rc7 Ng7 Rc6 Bg4 Nfd5 Bh5 Nf6 Nd2 Rac4 Nf5 Ra4 Ree2 Re4 Nc4 Rg4 Re4
r1k3N1/q1R1r1p1/1qBB1P2/qr6/Nb1B1KP1/n2qR1Bb/1b2N3/4qNn1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Qd3 h5 Qf3 h4 Qg3 hxg3 Ke2 a5 b4 d5 c4 Kd7 h4 e5 f4 d3+ Ke3 a4 h5 d2 c5 d1Q b6 g2 b7 a3 b5 a2 h6 d4+ Kf2 d3 Kg3 d2 f5 e3 b6 e4 f6 e2 h7 e1Q+ Kf4 e3 Ke5 e2 Kf4 Nh6 Ba3 Qa4+ Bb4 d1Q Nd2 Qa5 Rh3 Nc6 b8B Na7 b7 Qdb6 Bc3 Nf5 Re3 Nd4 Rc1 a1B Bd6 Nf3 b8B Nb5 Bd4 Ba6 c6+ Kc8 c7 Na3 Rc6 Rg8 h8N Bb2 Nf7 Qdb3 Rc1 Qd3 Nh6 Rh8 Ng8 Rh5 Rc2 Rb5 Rc5 Qa1 Rc4 e1R Ne2 g1Q Bg2 Qh1 Rc5 Ng1 Nf1 Bb7 Bc6 Be7 Be8 Bg2 Bc6 Bh3 Bg2 Kd7 c8N Kd8 Rc7 Qa2 B6e5 Bb4 Bd6 Qaa7 Bc6 Qad5 Nce7 Qdc5 Nd5 Qcc3 Rb7 Kc8 Rf7 Qcc5 Ndc3 Qba5 Na4 Qcb6 Bbc7 Qd5 B4c5 Qg6 Nec3 Nb1 Ree7 Qgd3 Be5 Qbb8 B7d6 Q3f3+ Kg5 Qdd1 Bg3 Qfd3 Kf4 Na3 Bd4 Qbb6 Re6 Ree5 Ne2 Qe1 Rfe7 Rh5 Re4 Rhe5 Re3 Re6 Rd7 Re7 Rc7+
2n1Bb1b/4B1p1/2b3PR/b4Pn1/2B1q1qk/RbR5/1KN2q2/R1BrrN1b b - - 0 1 illegal: Other
2b5/rkBpp2r/4PN1q/2NN2b1/b2q1n1q/2nRN2R/q2PB1B1/B1K1b3 b - - 1 2 legal: proof: g4 c5 b4 h5 a4 hxg4 c3 f5 Nh3 cxb4 Ng1 b5 axb5 f4 Qc2 Kf7 Qd3 Ke8 Qg3 fxg3 Kd1 a5 f4 g5 e4 b3 h4 g2 h5 b2 c4 a4 h6 g3 c5 a3 c6 g4 e5 a2 h7 Nf6 f5 Na6 e6 Nb4 b6 Nfd5 b7 Nf4 b8N Bh6 f6 Bg5 c7 Ra7 Rh3 Nbd5 Nf3 g1B Ne5 g2 Be2 g3 Nc3 b1B Bb2 Bf2 Na6 Be1 Nc5 g1Q Nc4 g2 Ne3 Qh1 Kc1 g1Q Ba3 Bc2 f7+ Kf8 Bb4 Ba4 Ba5 Qg4 Rb1 Qh4 Rb3 Qe4 Bb6 Qd4 Ba5 Nb4 Ncd5 a1Q+ Rb1 Qa2 Rb3 Qh6 Rd3 Qe8 Nf6 Nbd5 Bb6 Bb7 c8B Nc3 Bc7 Ba6 Bb7 Qh4 Ba8 Bc8 Nfd5 Qd8 Bd6 Qb6 Bc7 Qb7 Nb4 Qh1 Bg2 Qh2 Nbd5 Qh6 Rf3 Q2h4 Rh3 Rg8 h8B Rg7 Rf3 Rh7 Rh3 Nb1 Bb8 Qb4 Bc3 Qd4 Ba1 Nc3 Nb6 Kg7 Bc7 Kf6 Bd8 Ke5 Nbd5 Kd6 Bc7+ Kc6 f8N Rf7 Nh7 Rg7 Na6 Kb7 Nhf6 Rh7 Nc5+
b4B2/3P1Nb1/B4rRr/pB4rb/B2pb1nq/K4N1N/pn1P1k2/2Nb3R b - - 0 1 illegal: No proof kernel
4N3/k6r/pNB1nK1n/1bp1BNp1/2qnb1R1/Pr1R1RR1/4P1n1/n1b3N1 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 c5 bxc5 h5 Ba3 hxg4 Bb2 Rh7 Bc1 Rh8 c4 d6 c6 Rh6 c7 Rf6 c5 Rg6 c6 Rh6 Qc2 Rh8 Qc5 dxc5 Kf2 b5 h4 f5 d4 f3 Ke3 f2 Kf4 a6 Ke5 b4 a3 b3 d5 b2 h5 f4 d6 f3 h6 g3 h7 g2 Nc3 b1B Ne4 Qh4 Rh2 Bd7 c8N Kd8 Nc3 Qc4 Na7 Nh6 Ncb5 Be4 Nh3 g1N Bg2 f1N Nc8 f2 Nb6 Nd2 Bb2 f1N Nd4 Nb3 Nf5 Ne3 Rf1 Na1 Rf3 g5 Rg3 Nf3+ Kf6 Nd4 Ng1 Ne6 Rhh3 Be8 d7 Kc7 d8R Bd6 Rg4 Bf4 Rd3 Bd7 Bh1 Ng2 Rhf3 Bc1 Bc3 Ra7 Bb2 Re8 h8R Rb7 Rfg3 Re7 Rf8 Rg7 Rf7 Rh7 Be5+ Kd8 Na4 Kc8 c7 Rb3 Nb6+ Kb7 c8N Nc6 Ncd6+ Ka7 Ne8 Ncd4 Rdf3 Bc2 Rf8 Bb5 Rd3 Ne1 Bc6 Ng2 Rdf3 Be4 Rg8 Rc7 Rg7 Rb7 Rd7 Rc7 Rd5 Rh7 Rd8 Ndc2 Rd2 Ncd4 Rdd3
1q6/q1RN1b2/r2r1B2/2b1Bnn1/1q1N2pB/2pk1BP1/5KpP/N1RqN1r1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 f5 b5 axb5 h4 g3 h3 f6 exf6 Qb3 f5 Qf3 f4 Qg2 hxg2 e4 Ke7 b4 Ke6 d4 c5 b6 f5 d5+ Ke5 b5 Kd4 e5 g5 b7 a5 b6 g4 e6 c3 e7 c4 e8N c2 d6 a4 d7 a3 Ke2 c3 Nd6 a2 Na3 f3+ Kf2 f4 Rb1 a1Q Nac4 Ra6 Ne5 Nf6 Ndc4 Rh6 Ne3 Nc6 b8B Nh7 b7 Ng5 N5c4 Bc5 Be2 Ne7 Na5 Nf5 Be5+ Ke4 b8N Rhd6 Ba3 c1Q Rb7 Qcb1 Rc7 Qb4 Nb3 Bb7 Bd1 Kd3 Ne2 Bd5 Ned4 Bf7 Nec2 Qc8 d8B Qcb7 Nd7 Qb8 Bb2 Qaa5 Bc1 Qab6 Nba1 Q6a7 Be3 Ke4 Ke1 f2+ Ke2 f1R Bdf6 Rg1 Kf2 f3 Bd2 Kd3 Bdf4 Nh7 Bh4 Ng5 Bf6 Qab6 B4e5 Q6a7 Be2+ Ke4 Bc4 Re1 Bd5+ Kd3 Bb7 Re3 Rc1 Re1 Ba8 Rg1 Rf1 Kc4 Ke1 f2+ Ke2 Ne7 Rc1 f1Q+ Ke3 Qd1 Kf2 Kd3 Bf3 Nf5 Ne1+
1bB2kn1/B1n5/p2N1p1n/KbNBqr2/6pP/n2r1NN1/P2Rq1B1/2R1r3 b - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g5 Qf3 gxf4 g5 Qd5 Qd1 Qd8 Qg4 hxg4 h4 e5 d4 b5 Kd2 f6 Kc3 f3 Kb4 f2 c4 e3 d5 e4 d6 e2 c6 e1Q+ Nd2 e3 c7 e2 c5 Na6+ Ka5 b4 c6 b3 Nf3 b2 Rh2 b1N Kb5 Na3+ Ka5 Rh5 d7+ Kf7 Rg2 Qe7 d8N+ Ke8 Ne6 Bd7 Rh2 Rd8 c8N Qd1 c7 e1R Rg2 Bb5 Ne4 Rd3 Be3 Qd6 Rh2 Qe5 Ng3 Bd6 Rc1 Qc2 Bh3 f1N Rf2 Qd1 Rd2 Qe2 Bg2 Kf7 Bc5 Ne3 Bb6 Nf5 Nc5 Kf8 g6 Nfh6 g7+ Ke8 Nh1 Rf5 Ng3 Ne7 g8B Kf8 Bd5 Neg8 Be4 Nb4 Bc6 a6 Ba7 Nd5 Bb7 Nf4 Bd5 Ne6 Nb6 Kf7 c8B Kf8 Nc4 Bb8 Nd6 Nc7 Bde6 Be8 Bb3 Bb5 Bd5
2n5/Nbrk1pBN/N1qBp1pb/n5P1/7n/3q1Rp1/1NBP2R1/r1b2B1K b - - 0 1 illegal: No proof kernel
2B2B2/rNbP1p1r/3n2NR/2p2bRK/5P2/B2p1B2/q1R1np1k/4rRrn b - - 0 1 illegal: No proof kernel
2R1B1q1/2KN2rn/r1pp3k/2B3rP/5R1R/2bPn3/b1B1pB1p/b1rN1R2 b - - 0 1 illegal: No proof kernel
3N3R/p1RR1B2/kr3p1p/P2b3q/N2bnb1P/p1r2N2/n2qR3/Kb3NB1 b - - 0 2 legal: proof: e4 b5 b4 c5 bxc5 d5 a4 dxe4 f4 g5 a5 gxf4 Qe2 Nf6 Qc4 Ng8 Qa4 bxa4 Kd1 Kd7 g4 Kc7 d4 Kb7 h4 e5 c4 a3 Kc2 e3 c6+ Ka6 c7 e4 d5 e2 g5 e1B g6 f3 d6 f2 d7 h6 g7 e3 c5+ e2 c6 Bc3 Ra2 Nf6 g8R Bb7 c8N Bd4 c7 Bd6 Bf4 Qe8 d8N Nc6 Nb6 Rb8 c8R Ne4 Nd2 f6 Kb1 Nb4 Be3 Bd5 Rc7 Qh5 Na4 Rb6 Ngf3 Bf4 Rh2 Rh7 Rh8 Re7 Rb2 Na2 Ka1 Rd7 Bh3 f1B Bg1 Bg2 Be6 e1Q+ Nb1 Qb4 Bf7 Qd2 Rh3 Rdd6 Rg3 Bh3 Rg7 Rdc6 Rgh7 Rc3 Rc2 Qd1 Re2 Bf5 Rd7 Qd3 Nbd2 Qc2 Nf1 Qd2 Rg8 Nd6 Rge8 Bb1 Rhh8 Ne4 Ree7 Rb7 Rc7 Rb6 Red7
N2R1b1B/5KB1/1p1p2pb/1bPn1RP1/pB1n4/3B4/2rr2Np/n1q1NkN1 b - - 0 1 illegal: No possible last move
3N1Rq1/prB2n2/P1p2N2/kp3b2/rN4q1/3bp1pB/BK1b1BPN/n5R1 b - - 1 2 legal: proof: e4 f5 exf5 c6 b4 Qc7 c4 Qxh2 b5 Qh6 c5 Qh2 Qc2 cxb5 c6 b4 c7 Qd6 Qe4 Qh2 Qc6 dxc6 Kd1 Kd7 Kc2 g5 a4 h5 d4 e5 f4 b5 a5 h4 d5 g4 d6 g3 f6 b3+ Kc3 h3 f7 b2 a6 e4 f5 Rh4 f6 Nh6 Na3 b1B Bc4 Bd3 Bf4 e3 Rf1 Bg7 Ba2 Bh8 Be5 Ra4 Nf3 Qg1 f8B h2 Rf2 Qd1 Rg1 h1Q f7 Qh3 Be7 Qe6 Nh2 Qdg4 Nc2 Qg8 Kb2 Qeg4 Bc3 Bd4 Rff1 Bb6 Bd2 Ba5 Be1 Bd2 Bf6 Nf5 Rf2 Nd4 Be5 Nb3 Nb4 Na1 f8N+ Ke8 Nf1 Nd7 Nh7 Rb8 Nh2 Rb7 Bf4 Ne5 d7+ Ke7 d8N Kd6 Rf3 Kc5 Bf2 Nd7 Be5 Kb6 Rf8 Ka5 Bf4 Ne5 Nf6 Nf7 Be5 Qe4 Bf4 Bf5 c8B Bg6 Bg4 Bf5 Bh3 Qf3 Bd6 Qfg4 Bc7+
1K1n4/4N3/qn2PN1Q/1bN5/PR1n2q1/Q1r1k2B/q4N1N/1Qrqn1n1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 e5 g3 a5 a4 axb4 Ba3 e4 f3 Bd6 fxe4 Bf4 e5 bxa3 Nc3 h6 Rc1 Be3 Nb1 f4 Rc6 f3 Rg6 Bf4 Rg5 hxg5 gxf4 Bh3 Bg2 Bd7 Bf1 Bc8 Kf2 Kd7 Kg3 c5 h4 b5 e4 b4 d4 b3 d6 Kc6 h5 c4 f5 b2 e6 c3 d5+ Kc5 d7 a2 d6 a1N e5 c2 h6 c1N h7 f2 f6 g4 Kf4 g5+ Kf5 g3 e7 g4 Ke6 g2 e8N g3 f7 Ncb3 f8N Nc2 Nd2 Kd4 Qb1 Ne7 Ne4 Ba6 Rh4 Nc8 Nf3+ Ke3 Ng6 g1Q Ne7 g2 N8f6 Nc6 Nh2 Nbd4+ Kd5 Qg8+ e6 Ne1 d8Q Bb5 d7 Qg4 Qf8 Nb6+ Kd6 Nd8 Kc7 Ra7+ Kb8 Rc7 Neg8 Rc1 Ne7 Rg8 h8Q Rg5 Qh5 Rgc5 Qg6 R5c3 Qgh6+ Qg5 Rf4 Qh1 Rg4 g1N Bh3 f1Q Nf2 Qd5 Rf4 Qa2 Rh4 Nde2 Rb4 Nd4 Qc2 b1Q Qch7 Nb7 d8N Qbd3 Q7g6 Qd1 Qb1 Qfd3 Nf7 Nd8 Ne5 Qdc4 Ned7 Qc6 Nc5 Qa8+ Kc7 Qa5 Kb8 Qa6 Qa1 Qab3 Qa3 Qa2 Qg6 Qg2 Qb1 Qgg4 Qh6+
1K3Q1N/QbP1N3/2qr1q1R/N6Q/1r2P2q/1p4n1/b2Nn2N/q1b3Bk b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a6 f4 Qe7 fxe5 Qd8 b5 axb5 g4 h5 gxh5 b4 a4 b3 a5 Qg5 Bg2 Qxg2 Ra4 Qg5 Rh4 Qxh4+ Kf1 Qf6+ Ke1 Qd8 Kf2 Ke7 Ke3 Ke6 Ke4 d5+ Kf4 f5 e4 g5+ Kg3 b5 c4 g4 Kf4 b4 h4 g3 h6 b2 h5 b3 c6 d4 h7 g2 c5 d3 c7 d2 a6 Nc6 h6 Qh4+ Qg4 d1Q a7 Nf6 Rh3 Rb8 a8Q Rb4 Nf3 g1Q Nbd2 b1B Qa7 Qc2 Nh2 Bb7 c8N Nd4 c6 Ba2 Ne7 Bg7 c7 Rd8 h8Q Qc6 h7 Rd6 Qf8 Bh8 Bb2 Qa1 Ba3 Bg7 h8N Nh5+ Ke3 Ng3 Qh5 f4+ Kd3 Ra4 Bc5 f3 Ke3 f2 Kd3 Ra6 Kc4 f1Q+ Kb4 Rb6+ Ka5 Nde2 Bg1 Qg5 Rh4 Rb4 Rh3 Bh6 Rh4 Qff6 Rh3 Qc2 Rh4 Bc6 Ka6 Qcc3 Rh3 Qh4 Qg6 Nf1 Nc8 Qf3 Nc4 Qfc3 Na5 Qhg3 Rh4 Be3 Rh6 Qh4 Qg5 Bc1 Qh5 Bb5+ Kb7 Ba6+ Ka8 Bb7+ Kb8 Nfg3 Nc4 Kd7 e6+ Kc6 e7 Kd7 Qf3 Ke6 Na5 Ke5 Qg4 Qc6 Qh5+ Kf4 e8N Rd1 Ned6 Rd2 Ng4 Kf3 Ndc4 Kg2 Nh2 Rd6 Ne7 Kh1 Nd2
r1Bk2r1/2Q5/p1rpQ2N/2bb2bQ/3bP3/N5bP/QQKN4/4R1qb b - - 0 1 legal: proof: c4 b5 cxb5 h5 b4 Rh6 g4 hxg4 a4 Rc6 b6 Rc2 b5 Rc3 b7 Rh3 b6 Rh8 Bb2 Nc6 Ba3 Nd4 Bc1 Nb5 axb5 Rh4 Ra3 Rh6 Ra1 Rh8 d4 c5 e3 e5 Ra3 f5 Rb3 f4 Ra3 c4 Rd3 Nf6 Bd2 Ne4 Bc1 Nc3 e4 Na4 Be3 Nc5 dxc5 fxe3 Rd4 exd4 b8N g5 f4 e2 Kd2 e1B+ Kc2 a6 b7 d6 c6 c3 b6 g3 c7 g2 f5 g4 f6 g3 Nc6 Rg8 b8Q Be6 c8Q Bh6 b7 Bd5 Nf3 g1B Nfd2 g2 Ne7 Bg5 Na3 Bg3 Nf5 B1e3 h3 g1B Nh6 B1f2 Bc4 d3+ Kc1 c2 f7+ Ke7 Re1 Bc5 Qh5 Bfd4 Qa7 Qf8 Qe6+ Kd8 Bb3 Qg7 f8Q+ Kc7 Qf4 Kd8 Ba4 Qg6 Bd7 Qg7 Bc8 Qg6 Ndb1 Qg7 Kd2 c1R b8Q Rc3 Kd1 d2 Qf2 Rc2 Qb2 Rc4 Ke2 d1B+ Kd3 Bf3 Nd2 Bh1 Qff7 Bb6 Qf2 Rc6 Qa2 Bbc5 Kc2 Qf8 Qfe2 Qf2 Qb5 Qg2 Qbb2 Qg1 Qc7+
2Q2Nb1/1Bn1R2q/n2R4/3b3R/K2Rb1qk/Qp3P1P/3pQRpr/7r b - - 0 1 legal: proof: e4 a5 d4 c5 dxc5 b5 b4 axb4 a3 f5 exf5 b3 Nd2 b4 Nc4 b2 Nd2 b3 Nb1 g6 Bd2 Bg7 Bc1 Bh6 f3 g5 Be3 g4 Bf2 Bd2+ Ke2 Bb4 axb4 g3 Kd2 Ra3 Ke1 Ra8 Kd2 gxf2 g4 h6 Nc3 Rh7 Ne4 Rh8 g5 h5 Nf6+ Kf8 Ng4 hxg4 Bd3 Kf7 Bf1 Ke8 Kc3 Kf7 f6 Kg6 f7 Kh5 f8Q b1B c6 d5 g6 e5 g7 g3 b5 d4+ Kb4 e4 c4 e3 c5 e2 b6 d3 c7 d2 c6 e1Q b7 g2 Ne2 Be6 c8Q Rh6 c7 Ra7 Nf4+ Kg5 Ng6 Na6+ Ka4 Kh5 b8R Qd3 Rb4 Qee4 Rd4 Qc2 Qe2 Nf6 g8R Nd5 Qa3 Qg4 Rg7 Bg8 Nf8 Qh7 Re7 Be4 Rc1 Kh4 Rc6 Rg6 Rb6 Rc6 h3 Rc1 Rd6 Rb1 Qd3 Re1 Be2 f1B Qe3 Ra1 Bc4 Bfd3 Rf1 Be2 Bb5 Bc4 Rf2 Rh1 Bc6 Rh2 Qe2 Ra8 Bb7 Ra7 Qb8 Ra8 c8R Ndc7 Rcd8 Bcd5 Qc8 Ne8 Qc6 Rc8 Qd7 Rc1 Qc8 Nec7 Rde8 Rb1 Re5 Rc1 R8e7 Rch1 Rh5+
N1n4N/bbr1k1rq/1bQ5/2Q1q1Pr/5N2/P1p3N1/K2bQnBR/2q4N b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 a3 Bd7 g3 Bc8 Bb2 h6 Be5 h5 g4 h4 Bg3 hxg3 Ra2 Na6 Rc2 Nb8 Rc4 Nh6 Re4 Ng8 Rf4 gxf4 d4 e5 Kd2 c5 Kc1 b5 Kb2 c4 h4 c3+ Ka2 e4 f7+ Ke7 g5 f3 h5 g2 h6 f2 h7 b3+ Ka1 e3 Qg4 e2 Nd2 e1B Ne4 b4 Rh2 b2+ Ka2 b1R Qe2 Nh6 Nh3 g1B Bg2 f1Q Nhf2 Qa5 Nh1 Bd2 Neg3+ Bge3 Qd3 Nd7 Qe2 Bg7 f8N Bb7 Ne6 Qc1 Nc7 Rac8 Na8 Rhg8 h8N Nb6 Bf1 Rc7 Bg2 Ng4 d6+ Kd7 d5 Nc8 f6 Ba7 f7 Nf2 f8Q Bgd4 Qf6 Bdb6 Qf5+ Kd8 d7 Rg7 Qg6 Qc5 Qc6 Qe3 Qc5 Qe5 Qc6 Ke7 d8N Bbe3 Ne6 Beb6 Nf4 Ra1+ Kb3 Rb1+ Kc4 b3 d6+ Kf8 d7 b2 Kb3 Ke7 Ka2 Ra1+ Kb3 b1Q+ Ka4 Qg6 Kb3 Rb1+ Ka2 Rb4 Ne6 Rh4 Nf4 Qh7 Qc5+ Nd6 Qc6 Rh5 Qc5 Kf8 Qc6 Nc8 d8Q+ Qe8 Qdd5 Qe5 Qd4 Ke7 Qdc5+
k2N4/4n2r/n1Q2NNq/Qnr3Pb/B3P3/2N2n1r/1pKbQRq1/bN6 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 e5 a4 d5 cxd5 g5 Ra3 h4 Rf3 Ke7 Bb2 Ke8 Bd4 Qd7 Be3 Qd8 Bf4 axb4 Rg3 hxg3 f3 e4 fxe4 gxf4 e5 Rh5 Na3 Rh7 Nb1 Rh8 h4 Kd7 e4 f5 d4 c5 Kd2 Kc7 a5 b5 a6 g2 a7 Kb7 e6 f3 g5 b3 d6 c4 e7 c3+ Kc1 f4 e8Q b4 h5 c2 d7 b2+ Kd2 c1B+ Kc2 b3+ Kc3 f2 d5 f3 d6 Qb6 d8Q Na6 d7 Rh7 h6 Bg7+ Qf6 Ne7 Qc2 Bd2+ Kd3 Bh8 Ne2 g1N Bh3 f1R Qd8 f2 Rh2 Nf3 Nec3 Rh1 Rg2 Rb8 a8N f1Q+ Re2 Qc6 Qa5 Qg2 d8N+ Ka7 Bg4 Rb5 Bd7 Rh3 Nb6 Rc5 Nbd5 Ka8 Rf2 Qd6 Ba4 Bg4 Qd1 Bh5 Qe2 Qdh2 Na3 b1N Qc6+ Ka7 Nf6 Qhh1 Nd1 Nc3 Nb1 Nb5 Ndc3 Qhh2 Qd6 Ka8 Qdb6 Rf7 h7 Bg7 h8N Qd6+ Nfd5 Qh6 Ng6 Be5 Nf6 Rh7 Nd1 Bb2 Ndc3 Ba1 Qd6 b2 Kc2 Nc6 Qd7 Ne7 Qc6+
1Q2R2r/3p1Q1P/rpQ2b2/b1bbQKBn/Nq1Q1R2/6kR/2P1nb2/7n b - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 f5 f4 fxe4 d4 g6 dxc5 Bg7 f5 Bf8 g4 Bh6 f6 Bf8 Nd2 Bh6 Ndf3 Bf8 Bh3 h6 g5 h5 Bg4 hxg4 Nd4 Nc6 Nf5 gxf5 Kd2 Nb8 Ke2 Bg7 Ke1 Bf8 Kd2 Kf7 Ke3 Kg6 Kf4 Kh5 h4 b6 a4 e3 g6 e2 g7 e1B f7 Nf6 g8Q Bf2 a6 Bb7 a5 Nc6 a7 Bg7 f8Q Nd4 a6 Ne2+ Ke5 g3 c6 Kg4 c7 g2 c8Q f4 h5 f3 h6 Bd5 h7 Nh5+ Qf6 Kg3 Qd4 Qf8 Kf5 e5 Ra4 e4 Qc6 e3 Qgf7 Qb4 Q6e7 Bf6 Qee5+ Nef4 Rh4 e2 Rh2 e1B Rh1 Rad8 a8Q Bc3 Qab7 Ra8 a7 Bd2 Qbb8 Bde1 Nh3 g1B Ng5 Bd2 Ne6 Bde1 Qb2 Bc5 Be3 f2 Qbd4 f1N Bc1 Bgf2 Rh3+ Kg2 Bd2 Ne2 Bg5 Nfg3+ Kg6 Nh1 Kf5 Bce7 Nc5 Bd2 Ra1 Bde1 Na4 Bc5 Raa3 Bd2 Rh4 Bc3 Rf4 Kg3 Qbg8 Rb8 a8R Rb7 Rd8 Ra7 Re8 Ra6 Qgf8 Qb3 Qfd6 Ba5 Qb8 Qc3 Ra1 Qb4 Ra3+ Kh2 Rh3+ Kg2 Rhh4 Kg3 Rh3+
kBNb4/n3R2K/2brQRQ1/RPn1q3/2n1Rpn1/Pp2qR2/n1r1Q3/8 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 b3 a5 Na3 a4 Bh3 b6 Bf5 b5 Bc2 Na6 cxd5 Nb8 Nc4 bxc4 b4 Ra6 Bb3 axb3 Bb2 Ra4 Bc1 Ra8 Kf2 Kd7 Kf3 f5 h4 c5 d4 Kc7 e4 Kb7 h6 g5 b5 c3 e5 c2 e6 c4 e7 c3 e8R Qb6 h7 Qh6 h5 Bg7 d6 Ne7 d7 Ra6 d8Q Nd5 Ne2 Nc6 Rh4 Qd6 h6 Qf6 Qb6+ Ka8 Ng3 Qe5 Re7 Nf6 d5 Na7 d6 Bd7 Qe2 Bc6+ Ne4 Ng4 d7 Rc8 h8Q Bf6 Qh7 Rc7 Be3 c1N Qg6 c2 h7 Nd3 h8R+ Rc8 d8R c1N a3 Na2 R8h6 Nc5 Rd4 Rc7 Ra4 Rc8 Re1 Rc7 Rf7 Bd8 Ra5 Rc8 Re7 Rc7 Rf1 Rc8 Kg2 f3+ Kh3 f2 Nd6 Rc7 Nc8 f4 Re1 f1N R4h5 Bb7 Qbe6 Nd2 Rf1 Bc6 Rf3 Nc4 Bd4 Nh2 Bc3 g4+ Kh4 g3 Bb4 Qe3 Re5 g2 Kh5 g1Q Re4 Ng4 Bc3 Qa1 Be5 Rd7 Kg5 Rd2 Bb8 Rc2 Kf5 Nge5 Kf6 Ng4+ Kf7 Qe5 Kg8 Bd7 Kh7 Rd6 Rh5 Be8 Rf5 Bc6 Rf6
B3Bnr1/b6q/bQ1B4/2q1nBb1/P2nr2p/3QRP1k/pNQ5/K2bB3 b - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 g5 h4 f5 hxg5 fxe4 Bc4 a4 Be2 Kf7 Bf1 Ke8 b3 a3 Nc3 Nf6 Rb1 Ng8 Rb2 axb2 a3 Bh3 a4 Bc8 Nb1 b5 Na3 b4 Rh4 bxa3 b4 Na6 Rh1 Nb8 g4 Kd7 d4 b1B Kd2 e5 Kc3 c5 g6 h5 d6 Ke6 d7 a2 Kb2 h4 b5 e3 b6 e2 f3 e1Q g7 e4 g5 Kf5 b7 c4 d5 e3 d6 c3+ Ka1 c2 g6 e2 Nh3 Qe7 d8Q Qf2 d7 e1N Qb6 Nd3 d8Q Nc6 b8B Qfc5 Nf4 Nd4 Bd2 c1B Bd6 Ne5 Be1 Bc2 Nd3 Nf6 g8B Nh7 g7 Bg5 Nb2 Ba6 Bd3+ Kf4 Bf7 Rg8 Be8 Qf7 Qe2 Bd1 Qc2 Bfe7 Bf5 Nf8 Bg6 Ra7 Rg1 Bef6 Rg2 Re7 Re2 Re6 Re3 Be7 Bb4 Kg3 Be1+ Kh3 Qd7 Bd8 Qdb5 Bc7 Qbe2 Bb8 Qed3 Rh8 g8B Ba7 B8h7 Rg8 Be4 Re7 Bhg6 Qh7 Bd5 Ng4 Bdc6 Re4 Ba8 Ne5 Bf5+
qbr2N1r/1Rqbp3/R1QR1P1b/3Qb3/3n2k1/B4qR1/3RpPQ1/3n2K1 b - - 0 1 illegal: No possible last move, all moves rejected
3k3Q/2rB3Q/qBnQ2N1/p5r1/b5qp/B1rp2n1/1b1PPK2/1QR3Qq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 b4 exf4 bxc5 Qf6 h5 Qd8 Ra3 h6 g4 Nc6 Rah3 Nb8 Rh4 gxh4 g5 Ke7 g6 Qc7 Nc3 Qd8 Ne4 Ke8 Ng5 hxg5 c4 a5 c6 d5 c7 f5 c5 d4 g7 g4 b6 f3 b7 d3 h6 f4 h7 g3 c6 g2 Qa4 f2+ Kd1 f3 Qc2 Qd7 Nh3 g1R Ba3 Nf6 g8Q Ne4 Nf4 Rg5 Bh3 Ra7 Ng6 Ng3 Qb1 Qg4 Qd5 Bh6 Qd6 Bg7 Rg1 Rg8 h8Q Bb2 Qh7 Bd7 Rh1 Rg7 Re1 f1Q c8Q+ Kf7 c7 f2 Qd8 Qh1 c8Q f1Q Q8b6 Nc6 b8B Qf6 Qg1 Rc7 Qch8 Rc5 Ba7 Rc3 Bb6 Qfe6 Nf8 Ke8 Ng6+ Rg8 Rf1 Kd8 Ke1 Qec4 Kf2 Qa6 Nf8 Rg5 Rc1 Qgc4 Qb4 Be8 Bd7 Qg4 Qbd4 Bf7 Qb4 Bb3 Qd6 Ba4 Ng6#
4N3/r1Q1n1bp/2p2bR1/2Qp1N1P/1K1n3q/NQB1nb2/N2Nb1P1/3k1r2 b - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 Nh6 axb5 Ng8 d4 f5 d6 e6 d5 exd5 b4 g6 e4 Bd7 f4 Qe7 e5 Be6 Bd3 Qd8 Be4 Bc8 Ra3 Na6 Rf3 fxe4 f5 Nb8 f6 Bb7 Rf2 Bc8 Rf5 gxf5 Kd2 Kd7 Kc3 Ke6 h4 a5 d7 a4 b6 f4 b5 Kf5 e6 e3 f7 Ke4 b7 f3 e7 f2 e8N f1B b6 a3 Bb2 a2 Na3 a1B Qb3 e2 Nf3 Ke3 Nd2 Nc6 b8N e1N b7 Ke2 Na6 Nc2 b8Q N6d4 Nb4 c6 Qc7 Ne3 Na2 Ne7 Kb4 Bg7 f8Q Ra7 Bc3 Ke1 Rh3 Be2 h5 Bca6 Rh4 Bf3 Rg4 Bae2 Rg6 Rg8 Qf5 Rf8 Qfc2 Qc8 d8N Qh3 Nf7 Qh4 Nh6 Rf7 Qd3 Rf4 Qbc4 Kd1 Nf5 Nb5 Bf6 Bg4 Qd6 Rf1 Qc7 Bgf3 Be5 Bd4 Qc5 Ba1+ Qdc4 Bd4 Bf4 Bdf6 Be5 Qe4 Ba1 Nd4 Bc3 Qh4 Qb3+
Nk2QQ2/6np/1b1np1n1/b1NPPQrr/2b2bp1/6n1/1NQQR1K1/4B3 b - - 0 1 illegal: No possible last move, all moves rejected
b1n1b1KB/1rq1b3/1B3RBk/1QP2P1N/7r/p1Bbb2B/5B1q/B1n2r2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 g4 h6 b4 Qb6 f5 Qd8 Nc3 Qa5 Nce2 Qd8 Nf4 gxf4 g5 h5 Ra3 Bh6 Rg3 Bf8 Rg4 hxg4 Kf2 Kf7 c4 d5 h4 a5 c5 e5 b6 a4 b7 e4 h5 g3+ Ke2 e3 Kd3 a3 h6 g2 b5 e2 b6 e1B h7 f3 Qd2 f2 Qb4 Bd2 Nh3 g1Q Qb5 Nc6 b8B Bd7 b7 Be8 Bb2 Ra7 Nf4 Na5 Rh6 Nb3 Bh3 f1R Ba1 Qh2 Bc7 Be3 b8B Ne7 Bb6 Nc8 Bd6 Be7 g6+ Kf8 f7 Kg7 Bdc7 Rb7 f8B+ Kf6 g7+ Kg5 Bd6 Qc7 g8B Rb8 Bf7 Rb7 Ne2 Nc1+ Kc2 d3+ Kc3 d4+ Kc4 d2 Kd5 d1B Ke6 d3 Nf4 d2 Bfg7 Rb8 Bgc3 Bc2 Rf6 d1B Bg6 Bf3 Bde5 Bb1 Be1 Bfc6 Bf2 Ba8 Bed4 Rb7 Bdc3 Bc6 Kf7 Bd3 Kg7 Bd7 Kf7 Be8+ Kg7 Rf8 h8B Rf7+ Kg8 Rh7 Bba5 Rh4 Nh5 Kh6 Bb6
Q2K2nR/qp5N/5PP1/1kn3R1/1Qb1QN2/b4b2/1b2p2N/Q1n1q2Q b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 f5 e4 a4 b5 a3 b6 Ra7 bxa7 Nc6 exf5 Nb4 a8Q Nxa2 Bb2 Nb4 Bd4 Na6 Bc5 Nxc5 Qb8 Na6 g4 h5 h4 g6 f4 Kd7 f6 Nc5 g5 Nb3 f5 Nd4 f7 Ne2 f6 Nc1 Bd3 Nb3 Bf5+ gxf5 g6 Nc5 g7 Rh6 Ra2 Rg6 Ra1 Rg5 hxg5 Na6 Ke2 e5 Ke3 c5 d4 h4 d6 Kc6 d5+ Kb5 g6 f4+ Ke4 c4 d7 f3 Kf5 e4 Ke6 f2 d6 f1Q Qa8 e3 Nf3 h3 Nc3+ Kb6 Nh2 e2 Nd5+ Ka5 Nf4 Be7 f8N a2 Nh7 c3 Qd5+ Kb4 Qe4+ Kb5 Rc1 Qf2 Rcg1 a1B Rg5+ Nc5+ Kf7 Bb2 Qa1 Qb6 Ke8 c2 d8Q c1N d7 Bf8 Qde7 Qa7 d8Q Be6 Qa8 Bc4 Kd8 Qe1 Qd6 Nh6 Qdd4 Bd6 g8Q Bf8 Qh8 Ng8 Rh5 Bd6 Rg1 Bf8 Rgg5 Bd6 Nf3 h2 Rh4 h1B Nh2 Bf3 Qd2 Qf1 Qe1 Qf2 Qh1 Qf1 Qg7 Qe1 Qge7 Bde5 Qd6 Ba3 Qd2 Bd4 Qb4+ Ka6 Nf8 Bc3 Rh8 Bb2 Qd2 Kb6 Nh7 Kb5 Qb4+
NK2nbBr/6N1/b1PQpPB1/B3B1k1/5rrb/nB1r4/1n1Q1q2/7N b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 f5 h4 c5 e4 g5 exf5 a4 hxg5 a3 d4 cxd4 b4 Bb7 b6 Bxh1 b5 Bb7 Ra2 Bc8 Rb2 Nh6 Rb4 Ng8 Rc4 Bb7 Rc8 Bxc8 Ke2 Kf7 Kf3 d5 Kf4 h5 Ke5 h4 c4 a2 f4 a1B f6 Kg6 b7 h3 f7 d3+ Nc3 d2 b6 h2 f5+ Kh7 f6 Kg6 c5 h1N c6 d4 Nd5 Ra7 Nc7 Bc3 Na8 Nh6 Bd3+ Nf5 Nh3 Ra4 Nf2 Na6 b8B Nb4 b7 Qb6 Bd6 Nc2 b8Q Ba5 Qe1 d1R Qd2 Rc4 Bb2 Bb7 Bb4 Rg1 Qd6 Ba6 Ke6 Qc5 Kd7 Na3 Bc2 d3 Be5 Bc7 Ba5 Rf4 Bb3 Bb8 Bc2 Ba7 Kc7 Ng7 Bb3 Bb6+ Kb8 Ne8 Bc2 Ng3 Nh1 Nf5 Bb1 Ne3 Bc2 Nec4 Bb3 Kh7 g6+ Kh6 g7 Kg5 g8B Qf2 Bh7 Nb2 Bg6 Bc5 Qb4 d2 Qc3 d1R Qcd2 Bh6 f8N Be3 Qc2 Rd3 Ne6+ Kh4 g5 Bf8 Qc1 Rgg4 Ng7 e6 Qd2 Bc5 Bf7 Be3 g6 Bb6 Nh5 Kg5 g7 Bd4 g8B Bc3 Bg6 Bb4 Qc1 Be1 Ng7 Qg1 B6f7 Bh4 Qd2 Qf2 Bg6
1r1NQRn1/2PQ1r2/1n2QNQ1/BK6/2p1nr2/2P3n1/3p1bbQ/q2Qk3 b - - 0 1 legal: proof: e4 a5 b4 b5 c4 f5 exf5 g5 h4 gxh4 c5 a4 Bc4 bxc4 b5 c6 b6 Qc7 a3 Qg3 Ra2 Qg7 Rb2 Qc3 Rb5 cxb5 dxc3 b4 axb4 a3 b5 a2 Ke2 Kf7 f4 Kf6 g4 a1Q g5+ Kf7 g6+ Kf6 b7 e5 g7 d5 b6 h5 c6 d4 Ba3 h3 Nd2 h4 Ne4+ Kf7 f6 Kg6 f7 Kf5 Nf6 h2 Bb4 e4 Ba5 e3 Nf3 h3 Rf1 h1N Ng5 h2 Ne6 Nf2 Nd8 Bc5 f8Q h1N Qe7 Nd7 b8Q Rh4 b7 Ne4 Qc7 Nb6 b8Q Bb7 Qa7 Rb8 Qe6+ Kg6 f5+ Kg5 Qh2 d3+ Kf3 d2 Ke2 Ba8 Qad7 Nhg3+ Kf3 e2 c7 Bg1 Rf2 Bd5 Ke3 e1R+ Kd4 Re3 Rf3 Rf4 Rf1 Ref3+ Rf2 Nd6+ Kc5 Nde4+ Kb5 Bb7 Ne8 Kg4 f6+ Nf5 Rf1 Bf2 f7 Bd5 f8Q Bb7 Qh7 Kg3 Nf6 Kg2 Qfe8 Nfg3 Nd5 Rf7 Nf6 Rf4 Qh4 Nh6 g8Q Ba8 Qg6 Ng8 Qa4 Kf3 Qh2 Ke2 Rg1 Nf1 Rg5 Ng3 Rh5 Ke1 Rh8 Ne7 Rf8 Ng8 Qb3 Bd5 Qeg4 Be6 Qgh3 Bg4 Qa4 Bf3 Qhe6 Bg2 Qd1+
2k1qq2/2n2RPR/5N2/n1QRnQ1n/5BR1/6r1/1pP1p1R1/1R1bn1bK b - - 0 1 legal: proof: d4 a5 b4 c5 dxc5 b5 a4 f5 e4 Ra7 exf5 Rb7 Bg5 axb4 Bc1 b3 Ke2 b4 Ke1 Rb5 axb5 Qc7 Qd2 Qb6 Qd1 Qd8 f4 Kf7 g4 g6 f6 Qb6 Bd3 Ke6 f7 Qd8 f5+ Kd5 f6 Ke5 Nd2 Ke6 Bf5+ gxf5 Ndf3 h6 g5 h5 Ne5 Qc7 Ng4 hxg4 Kf2 Qa5 Ke1 Qd8 Kf2 d5 Kg2 Kd7 h4 e5 h5 g3 h6 b2 b6 b1N h7 b3 g6 e4 b7 e3 g7 f4 Rh3 d4 Bd2 f3+ Kh1 g2+ Kh2 b2 Bb4 f2 Ra5 f1Q Ne2 g1N Bd2 d3 Ng3 Qe8 Qh5 Nc3 Ne4 Nd5 Rg3 Nc6 b8R Ne5 Rb4 Nc7 Kh1 Ngf3+ Rg1 Be7 f8R Ne1 f7 Nf6 c6+ Kd8 Rab5 Bc5 Qf5 Nh5 Nf6 Bd4 Bc1 d2 Rd5+ Bd7 Rc4 d1N Bd2 Bb6 Rg4 Kc8 Bc1 Qf4 R1g2 Qb4 Rg8 Ba7 f8R Qc5 Rf7 Qcf8 Qd3 Bf5 Qc3 Be4 Qc5 Bf3 Bd2 Nc3 Bc1 Bd1 Bd2 e2 Bf4 N7b5 c7 Na4 Re7 Nb6 Rf7 Qd6 Rgf8 Nbc4 Rg8 Na5 Rgf8 Rg8 h8R Bb6 Rh7 Rh8 Rd7 Qe7 Rf7 Q7f8 R7d6 Ba7 Ra6 Bb6 Qc3 Bg1 Qc5 Nb3 Ra1 Na5 Rh6 Rh7 Rb1 Rh8 Rhg6 Rh6 Rh4 Rh8 R6g4 Rh6 Rhh2 Rg6 Nd7 Nf6 Rgh4 Rg3 Rg4 Kb7 Rh7 Nh5 Nb6 Ka7 c8Q+ Nc7 Qf5 Kb7 Nd7 Kc8 Nf6+
nB1r2R1/1pq1P3/2Bn4/2Kp1B2/k1RQ4/p3QbBr/2r2Pp1/2bR2B1 b - - 0 1 illegal: No possible last move
2NnQ1N1/2NP3p/1n1NpRR1/pr1r4/kNp5/Pqn2n2/Q5R1/2K2b2 b - - 0 1 legal: proof: c4 d5 e4 f5 exf5 c6 b4 c5 bxc5 dxc4 d3 b5 Bb2 b4 Na3 b3 Rc1 Bd7 Rc2 Be6 Ba1 Bc8 f4 g6 f6 b2 f5 bxa1N f7+ Kd7 f6 Nb3 Be2 Na1 g4 Ke6 h4 Qd7 g5 Qd8 Bg4+ Ke5 Bd7 Bh6 Bf5 gxf5 g6 Bg5 hxg5 Ke6 Rc1 Kd7 Rc3 Nc6 Rc2 Nb8 Kd2 Kc6 f8R a5 g7 f4 g6 f3 f7 f2 d4 f1N+ Kc1 Nh6 g8N Ng4 d5+ Kd7 d6 Kc6 g7 Qb6 Rg2 Nd7 Nh3 Ngf6 Qe2 Ne4 Nb5 Nh2 a3 Nc2 Nf2 Nb4 Qa2 Nc3 Nd3 Rb8 Rhg1 Nf3 Rg6 Qb7 R1g2 Nb6 Nc7 Bg4 Nf6 e6 g8N Bh3 Ne4 Rd8 Rd2 Bf1 Rdg2 Rc8 d7 Qb8 Na6 Kb5 c6 Ka4 c7 Nc6 Ndb4 Nd8 Nd6 Qb7 Ne7 Rb8 c8N Rg8 Nc7 Rg7 R6g3 Rg4 Ng8 Rd4 Rg6 Rd3 Re8 Rd5 f8Q Qa6 Qe7 Qb5 Rf8 Rb7 Rff6 Rb8 Nc6 Qb3 Qf8 Na8 Qf7 Rbb5 Qe8 Nb6 Nb4
3r2Q1/b1r1P1q1/2k2Bnr/PN2r2Q/2n2nbn/5QRQ/rN6/Q1Kb1Q2 b - - 0 1 legal: proof: b4 a5 g4 axb4 c4 e5 f4 d5 cxd5 g5 fxe5 Qd7 a4 Qe7 Ra3 Qd8 Rf3 h6 Rf4 gxf4 g5 h5 Bh3 Rh6 Bf5 Rh8 Bg4 hxg4 d4 Kd7 Kd2 c5 h4 f5 e4 b5 d6 g3 d5 g2 h5 c4 g6 c3+ Kc2 b3+ Kd3 b2 Kc2 f3 g7 f2 a5 f1R h6 b4 h7 b3+ Kd3 f4 Nh3 g1N Qe2 f3 Bh6 c2 Kd2 c1R Nc3 b1B Rh2 b2 Nf4 f2 Nd3 Qe7 Bg5 Rfe1 Qf3 f1R Nb5 Ne2 Rg2 Rc7 Bf6 Nc6 Rg3 Nh6 g8Q Rf2 Qg7 Nf5 e6+ Kd8 d7 Bc2 e5 Nh4 Qgg4 Bd1 Qh3 Ra6 Qf1 Rg8 h8Q Nf4+ Q3e2 b1N+ Kc1 Rb6 Qf3 Na3 Nb2 Nc4 Qh7 Rh2 Qb1 Rh8 Qa1 Rb8 Qh3 Rh6 Qff1 Rhe2 Nd3 Ra2 Nb2 Ra7 Nd4 Kc7 d8Q+ Kb7 d6 Qd7 Nb5 Qg7 Qe8 Re4 d7 Ne7 d8Q Neg6 Qdd3 Bc5 Qg8 Kc6 Qdf3 Bd7 e7 Rd8 e8Q Ne7 e6 Rc7 Qf3g2 Ba7 Qge2 Re5 Q8h5 Neg6 e7 Bg4 Qef3+
2r2BrB/B2Qq2k/q3qPbn/4Q1P1/1Nn2nB1/5q2/1B2N2Q/2K1nqb1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 b4 h6 h4 Na6 g4 Nb8 Ra3 Rh7 Rf3 Rh8 Rf4 gxf4 g5 h5 Rh2 Kd7 Rg2 Ke8 Rg4 hxg4 d4 Kf7 Kd2 Kg7 b6 c5 b5 e5 h5 a5 b7 e3+ Kc2 c4 f6+ Kh7 h6 e4 b6 a4 d6 c3 d5 g3 d7 e2 d6 e1Q Ba6 a3 Nd2 a2 Qf3 a1Q Bb5 e3 Qf2 f3 Nh3 g2 Qh4 g1N Nb1 e2 Nf4 f2 Qh2 f1Q Nd3 Nc6 b8B Qf3 b7 Nh3 Ba7 Ne5 b8Q Qa6 Nb4 Qe7 d8Q Nf4 d7 Nc4 Bb2 Qee6 Qbc7 Bc5 Qe5 Bg1 Qdc7 Qe7 d8B Qef1 Be8 e1N+ Kc1 c2 Bh5 Bf5 Bg4 Bg6 Qd7 Rc8 Nc3 Q1e2 Ba5 Qee4 Ne2 Qec6 Nd3 Qe6 Bb4 Qf1 Qd8 Qe8 Bf8 Q8e7 Qdc7 Be8 Qd8 Kg6 h7 Nh6 Nb4 Rg8 h8B Kh7 Ng3 Bg6 Qd1 Nb6 Kd2 Nc4+ Kc3 c1Q+ Kb3 Nf3 Qd7 Qcd1+ Kc3 Qdd5 Ne2 Ne1 Kb3 Ned3 Kc2 Ne1+ Kc1 Qdc6 Qh1 Qcf3 Qh2
1rQ1Brb1/2BNkqbB/1p3n2/4P1qn/qq1NQQ2/8/PQ1r4/3qQK2 b - - 0 1 legal: proof: c4 a5 h4 h5 g4 g5 f4 d5 cxd5 e5 b4 axb4 Na3 Be7 Rh2 Ra4 Rf2 Ra8 Rb1 Bc5 Rb3 Bf8 Rg3 Qd6 fxe5 Qf6 Rf4 gxf4 g5 Qd8 Rg4 hxg4 e4 f5 d4 c5 e6 g3 e5 b3 e7 g2 g6 c4 d6 b2 g7 b1Q h5 c3 d5 c2 h6 f3 h7 f4 Bd3 Nf6 g8Q Be6 Qg5 Qa5+ Bd2 c1R Ne2 Nh5 Nc4 Qa4 Nd4 Bg8 Nb6 Qbb4 Nd7 f2+ Ke2 g1Q Qe1 Qg4+ Kf1 Rc2 Qf5 Qg5 Qfe4 Bg7 Bc3 Qc4 Ba5 Qcb4 Bc7 Rd2 Bc2 b6 Bb1 Be6 Bc2 Rf8 h8Q Bg8 Qh6 Nf6 Qh4 Nh5 Qg3 Kf7 Qb3 Ke8 Qb2 Kf7 Nc5 Ke8 d7+ Kf7 d8Q Nd7 d6 Ndf6 Qd7 Rab8 Qg4 Ke8 d7+ Kf7 e8B+ Ke7 Kg2 f3+ Kh2 Rd1 Qgf4 f1Q Bb1 f2 Bd3 Qe2 Kh3 Qh6 Kg2 Rd2 Bb1 Qed1 Kf1 Qg5 Bd3 Rf7 d8Q+ Kf8 Qc8 Ke7 Qh3 Rf8 Qc8 Qd7 Qh4 Qe6 Qf5 Rc2 Nd7 Qf7 Qfg4 Qa4 Bh7 Re2 Qe4 Qdb3 Qhf4 Rd2 Q1e2 Qbb4 Q2e3 Ng4 Kg2 Ngf6+ Kh1 f1Q+ Qg1 Qfd1 Qge1 Ng3+ Kg1 Ngh5+ Kf1
4r1r1/bbP1kB2/1b2P1QR/nBqp1B1K/R2bbq1B/n1Q5/1B6/Q5n1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 a4 c5 axb5 h6 d4 cxd4 Nh3 Bd6 Nc3 Bf8 Nf4 gxf4 Ne4 h5 g5 Qf6 Nf2 Qd8 Ng4 hxg4 Kf2 a5 b4 d5 h4 f5 e4 a4 c4 a3 c5 g3+ Kf3 d3 c6 a2 g6 g2 g7 g1B h5 d2 h6 Qa5 e6 Ne7 g8B Ba7 e5 Ng6 b6 Ke7 h7 Qc5 b5 Bb7 c7 Nc6 Rh6 Na5 Bb2 Re8 Bf7 Rg8 h8Q Bg7 Qb1 d1N Bd3 Nf2 Qc2 Bf6 Qc3 Nh3 Qg7 Bh4 Bc2 Bf2 Be4 Bc6 b7 Be3 b8Q Bb7 b6 Ng1+ Kg2 f3+ Kg3 f2 Qa8 f4+ Kg4 f1Q Bf5 f3 Kh5 f2 Qh7 Ba6 b7 Bd4 b8B Bb7 Qg7 Qc1 Qh7 f1B Qg7 Bb6 Ba7 Qf4 Qh7 Bg2 Qg7 Nf8 Qg6 Be3 Rd1 a1B Rd4 Nd7 Ra4 Qd6 Qc6 Be4 Qc3 Bbd4 Bc5 Nb6 Bb4 Nbc4 B4a3 Bb6 Bc5 Bd2 Bf2 Qc5 Bh4+ Kf8 Qa7 Be3 Ra3 Qd4 Bc1 Rd8 Qc2 Bc5 Bf6 Nb3 Qd2 Rb8 Bh4 Bc3 Bb2 Re8 Ra2 Ba5 Bg3 Ke7 Qc3 Ncd2 Qa6 Nb1 Ra3 Ba7 Qf1 Ba6 Ra4 Na3 Qa1 Qc5 Bh4+ Kf8 Qg2 Bb7 Qg4 Bd4 Qg6 B5b6 Qg4 Rg6 e7+ Kg7 e6 Na5 Be1 Kf6 Bh4+ Ke5 Qg2 Kd6 Qgg3 Rgg8 Qg6 Rd8 e8B Rc8 Bg3 Ke7 Bb5 Rce8 Bh4+
1N4RK/PbQ1n2N/qN4r1/2bR1R1n/1p4r1/q1P2N2/2q1rNn1/k2Q2q1 b - - 0 1 legal: proof: d4 a5 e4 g5 b4 f5 exf5 c5 dxc5 axb4 g4 h6 f4 Qb6 f6 Qa5 f5 Qd8 Bf4 gxf4 g5 h5 Be2 Nh6 Bf3 Ng8 Bg4 hxg4 Kf2 Kf7 h4 b5 a4 d5 c3 e5 a5 f3 Kg3 b3 c6 b2 c7 f2 h5 f1Q Kh4 b4 h6 d4 Kh5 d3 a6 e4 h7 g3 a7 g2 Qd2 e3 Ra5 e2 Re5 e1N Rh4 Bb7 c8N Nd7 Rd5 Qa5 Nh3 g1Q Nf2 Bc5 Rf4 Qa3 Qd1 d2 Nb6 Ne7 Kh6 Rhg8 h8Q Qfa6 Kh7 Rg6 Qd8 Ng2 Kh8 Rc8 Rf3 Rc6 Qc8 Re6 Qc7 Re2 Rf4 Kf8 f7 Nf6 Rf3 Nh5 Rf4 Rf6 g6 Rd6 Qa4 d1Q Nd2 b1R Nf3 Qc2 Qb3 Rd1 Qb1 Rd4 Qd1 Rde4 Qb8+ Nc8 g7+ Ke7 g8R Rg6 f6+ Ke6 Rff5 Ne7 Qd8 Reg4 f8N+ Kf7 Nfd7 Ke6 f7 Nc8 Nd2 Ne7 Rde5+ Kd6 f8N Kc6 Qb8 Kb5 Nf3 Ka5 Nh7 Kb5 Nc8 Kc4 Ncb6+ Kb3 Rd5 Kb2 Qc7 Ka2 Nb8 Kb2 Qd2 Ka1 Qd1+
2Q3nN/1QrQk3/1p1n1q2/Q1b2P2/N2b1bB1/1PNr3B/4n1Q1/1Knb1r2 b - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 g5 f4 a4 f6 a3 b3 Ra7 Nc3 Bf5 Rb1 Bc8 Rb2 axb2 a4 Ra8 h4 h6 g4 Kf7 d3 Qd7 f5 Qd8 h5 Ke8 Bf4 Ra5 Rh3 Ra7 Rg3 gxf4 g5 Ra5 g6 Ra8 Rg5 hxg5 Kd2 b1N+ Kc1 c5 h6 e5 d4 g4 g7 f3 h7 e4 f7+ Ke7 a5 e3 a6 f2 a7 g3 Kb2 b6 Ne4 c4 Ka2 e2 Bh3 f1R Nc5 e1B Na4 g2 Qf3 c3 Ne2 c2 Nec3 c1N+ Kb2 g1B d6+ Kd7 d5 Bb7 Qe4 Bg3 Qh1 Be7 f8Q Nc6 Ka1 Rc8 a8B Bf4 Qe4 Nf6 g8Q Na3 Qgg2 Nb5 Kb1 Ng8 Qe1 Bd4 Qf7 Qf8 Qfg7 Kd8 d7 Qf6 Qe5 Nd6 Qe1 Nh6 Qf7 Rg8 h8N Rg3 Qed2 Ba6 Bb7 Be2 Ba6 Bd1 Be2 Bf8 Beg4 Rd3 Qa2 Ng8 Qh7 Kc7 d8Q+ Kb8 Qdd7 Rc7 Qa3 Kb7 Qc5 Kb8 Qa5 Kb7 Qde7 Kc8 Qef7 Kd8 Qfg7 Nc4 d6 Be7 d7 Bec5 Qf7 Nd6 Qc4 Be2 Qhf7 Bd1 Qfd5 Ke7 Qdf3 Ne5 Qb7 Nf3 Qcd5 Ng1 Qc8 Ne8 Qdb7 Nge2 d8Q+ Kf8 Qdd5 Ke7 Qdc6 Nd6 Q6d7+
B1nnr1q1/4Brn1/2Bp2Q1/Nb2BNq1/2NP1P2/Bkr1b2Q/3r4/1K4n1 b - - 0 1 legal: proof: b4 f5 e4 c5 bxc5 fxe4 a4 b5 axb5 g5 Be2 g4 Bc4 Bh6 Bf1 Bf8 h4 h5 f4 Qc7 Ra3 Qd8 Rf3 Bb7 g3 Bc8 Rh2 Nh6 Rg2 gxf3 g4 Ng8 g5 Rh6 Rg3 Rh8 Rg4 hxg4 c4 Kf7 d3 Ke6 Kd2 a5 Kc2 g3 c6 e3 c7 a4 c5 Kd5 b6 e5 g6 f2 b7 a3 g7 e2 h5 e1R c6 a2 h6 a1R h7 g2 Na3 e4 Bb2 e3 Bd4 e2 Bb2 Ra2 Qa1 Qg5 Nc4 Ne7 Qb1 R8a7 Nf3 g1N Bg2 f1N g8B+ Kc5 Bh1 Kb4 Nd4 Ng3 Bgd5 Nh5 Nf5 Ng7 Bhg2 Rg8 h8B Rf1 Bh1 e1Q d4 Rf3 Bg2 Qeg3 Kc1 Ka4 Ba3 Rd2 Qd3 Q3g4 Kb1 Rg3 Qe4 Rc3 Qe6 Kb3 Qg6 Ne8 Be5 Ng7 Ng3 Qe6 Nf5 Rh8 Bed6 Qg8 Bgf3 Na6 b8B Nc5 Bg2 Ba6 c8Q Nce6 c7 Nd8 Ba8 Bb5 Bgc6 Rb7 Qe6 Ra7 Qa6 Nc8 Be7 Rb7 Qh6 Ra7 Qh3 Rb7 Bf6 Bb4 Be7 Qd5 Qb6 Re8 Qa6 Qg8 Qb6 Na7 c8N Ba5 N8d6 Nc8 Bc7 Ra7 Nb7 Bb4 Be5 d6 Qc7 Ba5 Bc5 Bb4 Qd7 Ba3 Qe6 Bc1 Qf7 Rf2 Qg6 Be3 Bb4 Rd2 Ba3 Nf7 Nd8 Rc7 Nb7 Nd8 Bf8 Rf7 Be7 Ra2 Bc1 Re2 Ba3 Rd2 Nba5+
2b2K1R/1q1RBn2/2p3PQ/b2BB2k/2B3nq/1r1B3r/rQ1P2rb/3R1b2 b - - 0 1 illegal: No possible last move, all moves rejected
r2bQ3/B7/Q2r1p1n/1KnB4/1PR1n1BR/PB1b2bp/2b1Q2q/B3bk2 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 e5 hxg5 exf4 Na3 a6 Nc4 bxc4 b4 a5 Nf3 a4 Nd4 Na6 Nb3 axb3 Ba3 Nb8 Bb2 Ba6 Bc1 Bc8 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 c5 e4 h4 a3 f3 g6 b2 g7 b1N+ Kc2 c3 Kb3 f2 Kc4 c2 g5 f6 g6 Qc7 Ra2 Nd2+ Kb5 c4 Be2 f1B Bb2 c1B Ba1 c3 Rc2 Nh6 g8B Bf5 g7 Na6 Rh2 Nc5 e5+ Ke7 e6 Kd6 e7 Nde4 e8Q Bd2 Bf7 Be7 g8B Be1 Qc8 Bd8 Qa6+ Kd7 Rc1 c2 d6 Bh7 d5 h3 Rg2 Bg6 Rg4 Rh7 Rh4 Bg3 Bc4 Bd3 Qe2 Bf5 Bh5 Rh8 Rd1 c1B Bg4 Bd2 Rc1 Bde1 Bf7 Bc2 Ba2 Re8 Bb3 Re6 Bg8 Ke8 d7+ Ke7 Bf7 Rd6 Be6 Bd3+ Rc4 Bg6 Bf3 Bh7 Beg4 Kf7 Bh1 Kg6 Bhf3 Kg5 Bh1 Be7 d8Q Kf4 Qe8 Bd8 Bg2 Bgf2 Bh1 Kg3 Bhf3 Kh2 Bg2 Kg1 Bh1 Rc6 d6 Bg3 d7 Qf4 Bhf3 Rd6 Bg2 Qf2 B2f3 Qh2 Bh1 Be7 d8B Bc2 Bb6 Bd8 Ba7 Bg6 Qd2 Kf1 Qd1 Ng5 Bd5 Bgd3 Qd2 Nge4 Qe2+
1RQ2n2/QpP1K1bn/B6Q/Q4B1r/n1r1b2r/1p4Qn/nP2qB2/k4R2 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 Na3 c5 Nc2 g4 Nb4 axb4 Ne2 Bh6 Nc3 Bf8 d4 cxd4 h3 dxc3 hxg4 Ra5 g5 Ra8 Ke2 Kf7 Kd3 h5 Ke4 d5+ Ke5 h4 g4 h3 a4 d4 f4 h2 c5 c2 a5 d3 c6 d2 a6 Rh5 a7 Qe8 c7 Nf6 Qe1 d1N Bd2 c1N Ba6 Nh7 f6 Nc3 f5 N1a2 Rf1 h1N Rd1 Nf2 g6+ Kg8 g5 Nh3 g7 Kf7 Qe3 Na4 Be1 Nd7+ Kd5 Rb8 a8Q e5 Qea7 e4 Rd2 e3 Rd1 Qe7 g8Q+ Ke8 g6 e2 g7 b3 Bh4 e1R Rd2 Rc1 Be1 Qe3 f7+ Ke7 Rh2 Kf6 Rhf2 Kg5 f6 Qf3+ Ke6 Kf4 Rg2 Ke4 Rg6 Ba3 f8Q Rc4 f7 Kd3 Qd8 Kc2 f8Q Kb1 Rf6 Nac5+ Ke7 Ka1 Re6 Qd1 Qf4 Qd3 Qh6 Ndf8 Rd6 Be6 Qc8 Qe2 Rd8 Bd5+ Qce6 Bb4 Bb5 Be4 Qa5 Rh4 Qhf6 Bc3 Ba6 Bd4 Qa7 N7g5 Qg4 Nfd7 Qg3 Na4 Re8 Rd8 Qh6 Bc3 Qge6 Nh7 g8B Bd4 Bf7 Bc3 Bg6 Ndf8 Qeg4 Rd3 Rb8 Rd5 Qc8 Rdh5 Bf5 Bg7 Bf2+
1NrBk3/1b1Qbq1N/5Bqr/2Ppp3/K1b5/P1Q2BBb/n2Bn3/1Q2r3 b - - 0 1 legal: proof: f4 f5 b4 a5 e4 axb4 d4 g5 a3 c5 dxc5 Ra7 exf5 Bh6 f6 Ra8 f5 Bf8 g4 Ra7 h4 Ra5 Rh2 Ra8 Rf2 h6 Rf4 gxf4 g5 h5 Ra2 Qc7 Rb2 Kd8 Rb3 Ke8 Rg3 Qd8 Rg4 hxg4 Kd2 b5 c4 d5 Kc2 e6 Kb3 g3 h5 f3 c6 g2 c5 f2 f7+ Ke7 c7 Ra6 g6 Ra7 g7 Qe8 h6 Bb7 c8Q Nf6 g8Q Nh5 h7 Na6 Nh3 g1R Bg2 f1B Qg7 Nf4 Qc3 Ne2 Ng5 Ra8 Bf3 Bh3 Nd2 Re1 Nde4 e5 Bf4 Rb8 Bg3 Qd7 Qc6 Rc8 f6+ Kd8 Qda1 Be7 f8B Ke8 Qe6 Qc7 Qb1 Qd7 Qd6 Qe6 Bh6 Qf7 Kb2 b3 Qe6 Rg8 h8B b4 Nh7 Rg6 Bd2 Rh6 Nd6+ Kd8 Nb5 Ke8 Qd6 Rc6 Nd4 Rc8 Ka1 b2+ Ka2 Rh1 Kb3 Re1 Ka4 b3 Nc6 Nb4 Nb8 Na2 Qg6 b1Q Qc7 Qc1 Qb1 Qc2 Qd6 Qcg6 Qe6 b2 Qef5 Qe6 f7+ Kd8 f8B Qef7 Bf6 Ke8 Qbe4 b1B Qeg4 Bd6 B8e7 Bd3 Bd8 Bc4 Qb1 Be7 Qd7+
2q3Q1/2bk2n1/B1q5/NPNb1r2/r2n1pb1/1r1N4/QbpP2R1/N2N1N1K b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b4 h6 Bb2 Qe7 Ra3 Qd8 Bf6 Rh7 Rf3 gxf3 g4 Be7 g5 Rh8 g6 Bf8 Bg5 hxg5 Kf2 a5 e4 c5 h4 f5 b6 c4 d6 g4 d7+ Ke7 b7 a4 e5 c3 e6 c2 h5 a3 h6 a2 h7 a1B g7 Qc7 d8N Qd6 Rh2 Qc7 Ba6 Nc6 b8N Nd4 b5 Nf6 g8Q Bb2 Rg2 Qc6 Ne2 g3+ Kg1 f2+ Kh1 f1B Nd7 f3 Nbc3 f2 Qb1 Nh5 Nc5 Ng7 Nc1 Bc4 Ndb7 Bd5 Nd1 Ke8 e7 f4 N5b3 Bg4 N3a5 Kd7 e8N Bd6 Ncb3 Bc7 Ned6 Rf8 Qa2 Rf5 Ne4 f1R+ Rg1 Rf3 Na1 Rd3 Rg2 Rb3 Nbc5+ Ke7 Qa8 Rb8 h8N Kd8 Qa7 Ra8 Qb8+ Ke7 Qg8 Ra7 Nd3 Kd7 Nf7 Ra8 Nfd6 Ra7 Rf2 Ra8 Ndb7 g2+ Kg1 Ra7 Ng3 Ra8 Nf1 Ra7 Re2 Ra8 Kf2 g1Q+ Ke1 Be5 Nc4 Qc8 Nbc5+ Ke7 Rf2 Bc6 Bb7 Ra4 Na5 Qg2 Ba6 Bc7 Re2+ Qe4 Kf2 Qee6 Kg1 Bd5 Rh2 Qc6 Rg2 Kd6 Kh1 Ke7 Ne6 Kd7 Nec5+
N4Q2/nKn3QQ/1p1k1p1b/1qq1rP2/QN1q1Q2/1b2R1P1/2n2R2/r1Rq4 b - - 0 1 legal: proof: a4 b5 axb5 Bb7 b6 Bc8 b7 Nc6 Ra6 Nb8 Ra3 Nf6 Ra1 Ng8 b4 e5 d4 Nc6 b5 Nb8 b6 cxb6 dxe5 g5 f4 h5 g3 h4 f5 h3 Bg2 hxg2 Bf4 gxf4 Kf2 Ke7 Kf3 a5 Ke4 f6 Kd5 d6 c4 f3 h4 a4 e4 a3 h5 a2 e6 f2 h6 f1N h7 Bg7 c5 Na6 Kc6 d5 b8Q d4 e5 d3 Qh5 d2 Nh3 g1Q Na3 d1Q Ng5 Qd1d4 Rc1 a1Q Rh2 Qab2 Nc2 Qg4 Nb4 Bd7+ Kb7 Qbe2 c6 Nc7 Rf2 Qd4 Qh6 Nb5 c7 Ra1 c8Q Na7 Qc2 Qed3 Qa4 Ne3 Qg6 Bh6 Qg7+ Ke8 e7 Nc2 Qc7 Qb5 Ne6 Qgd1 Qc4 Qdc5 Qf4 Bc8+ Ka8 Kd7 e8R+ Ne7 Nc7 Rf8 h8Q Rf7 Kb8 Nd5 Qhh7 Re7 Na8 Nc7 Na2 Kc6 e6 Rf7 e7 Q8d4 Nb4+ Kd7 Qh4 Kd6 Qhg4 Be6 Kb7 Bb3 Qf4+ Qce5 Rf8 Qdc5 e8Q Re7 Rf7 Re6 Qeg8 Re8 Re7 Qcd4 Q8f8 Qdc5 Qh4 Qed4 Re3+ Re7 Qff7 Re4 Qf4+ Re5 Qff8#
2r2q1k/qb1Nbn1p/b2QNN2/3QN2r/1P4N1/r2p1r2/3P2KR/nQ1R4 b - - 0 1 legal: proof: h4 c5 f4 g5 f5 gxh4 a3 b5 b3 c4 bxc4 b4 axb4 e5 Na3 Bc5 Nb1 Bf8 e4 Qb6 Bd3 Nf6 Bb2 Nd5 Be2 Qc5 Bh5 Qc7 Bd4 Ke7 Be3 Qb6 Bf4 exf4 e5 Qd8 e6 Nf6 Bf3 Ng8 Bd5 Kf6 e7 Kg7 Be6 fxe6 Nf3 Kf6 Ng1 Kf7 Kf2 Kg7 e8Q d5 g4 a5 g5 d4 g6 a4 c5 d3 c4 a3 c6 h3 c5 a2 c7 e5 c6 e4 Qe1 f3 Na3 h2 Qd7+ Be7 Qd5 Na6 Rd1 a1Q Nc2 Qf8 Ne3 Nh6 Ng4 Nf7 f6+ Kg8 g7 e3+ Kg3 f2 Nf3 f1R Kg2 e2 Nfe5 Rf3 Qg3 Bb7 c8Q e1R c7 Nc5 Qb8 Ra6 c8N Nb3 Qbd6 Ra3 Nb6 Ba6 Nbd7 Qa2 Qf2 Na1 Qfd4 Re4 Qb2 Rc4 Qb1 Rc5 Rhf1 Rb5 Rf2 h1B+ Kf1 Rh3 Rh2 Be4 Kf2 Rf3+ Kg2 Rc5 Qd4 Bc6 Q4d5 Bcb7 Qb2 Qe8 Nb8 Raa5 Qc4 Bb5 Nec6 Rh5 Nd7 Qb8 Qcc5 Ne5 Qb1 Qa7 Qcd4 B5a6 Q4c5 Qe6 Qcd4 Ra3 Q4d5 Kf7 g8N Kg6 f7 Kg7 f8N Qh6 Qba2 Nf7 N8f6 Rg8 Qb1 Kh8 Ne6 Rc8 Nce5 Qg7 Ne4 Qf8 Nef6
3r4/1KpQRrR1/Q4R1n/4R1Pb/q1b3Pn/r1bkb2r/1p3B1R/1R4N1 b - - 0 1 legal: proof: c4 a5 b4 axb4 h4 d5 cxd5 g5 hxg5 e6 d6 Ra3 d7+ Ke7 Rh4 Ra6 Rh1 Ra8 e4 Qe8 d4 Qd8 d5 Qe8 Nd2 Qd8 Bc4 f5 d6+ Kf7 Bd5 exd5 e5 Nc6 Ne4 fxe4 Qg4 Nb8 Qh5+ Ke6 Qd1 Kf7 Ke2 Kg6 Ke3 Kf5 Kd4 h5 Kc5 b5 f4 h4 a4 e3 g3 Ke4 f5 e2 f6 e1B e6 b3 a5 d4 f7 h3 a6 b4 e7 b2 a7 b1R Qb3 d3 Qd1 h2 Kb5 b3 Kc5 b2 Qh5 d2 e8R+ Kd3 Qh3 d1B Be3 Nh6 Re5 Qe8 d8R Qa4 Bf2 Bh5 Rd7 Bc3 Rde7 Nc6 d7 Ba6 d8R+ Nd4 Qd7 Rf1 g4 Bc4 Rb1 Bg7 Rb8 Rd8 f8R Bd2 Rg8 Be3 Rb6 Bh8 Rf6 Bg7 Qb5 Ndf5+ Kc6 Nh4 Kb7 Bh8 Be1 Rf3 Rgg7 Rf5 Rfe6 Rf7 Bf2 Rd6 Rf6 Rad8 a8Q Ra6 Nf3 Ra5 Rhf1 h1R Qaa6 Rh3 Ng1 Qb3 Rfe1 Ra3 Re2 Qa4 Qd7+ Bd4 Rb6 Ng2 Rg8 Kc3 R5e4 Rc8 Be3 Nh4 Rh2 Rd8 Bf2 Be3 Rd6 Bhd4 Rg7 Kc2 Rf6 Bc3 Qe8 Kd2 R4e5 Kd3 Qd7+
k1qb2b1/bb1r2bB/B7/Q3b2p/4P2P/BBp1Qrr1/5NN1/BK1n3Q b - - 0 1 legal: proof: c4 d5 d4 e5 a4 Qd7 b4 Qd8 Ra2 a6 Rd2 dxc4 d5 a5 Rd4 exd4 bxa5 Bf5 Bd2 Be6 Bc1 Bc8 h4 f5 e4 f4 g4 Be6 g5 Nh6 Rh3 Ng8 Re3 fxe3 f4 Nd7 f5 Ndf6 gxf6 Bc8 f7+ Kd7 f6 c5 d6 Kc6 a6 h5 a5 b5 a7 Kb7 d7 g5 Qe2 b4 Kd1 c3 Kc2 d3+ Kd1 g4 Qg2 c4 Be2 c2+ Ke1 g3 Bb2 c1B Kd1 c3 Qh3 g2 Ba1 b3 Bf1 b2 Qh1 d2 Kc2 d1R Na3 e2 Nc4 e1B Nh3 g1B Nf2 Bg7 f8Q Bg5 f7 Nf6 Ne3 Rg8 Qc5 Ng4 f8B B5f6 Ng2 b1B+ Kb3 Qc7 d8Q Ba2+ Kc2 Rd7 Qe3 Bd2 Bb5 Be5 Ba3 Rf8 Qdg5 Bg8 Kb1 Rf3 Ba4 Rb8 Bb3 Ka8 Qf5 Rb6 Qfg5 Rg6 Qd8 Kb7 a8B+ Kb8 Qdg5 Bb7 a6 Qc8 Qd8 Bc1 Qa5 Bd2 Qeb6 Bg5 Qe3 Bc6 Bb7 Bd8 Be6 Rg5 Bf5 Bcd5 Bh7 Bc6 Qd4 Ne3 Qd2 Nd1 Qe3 Qc7 Bc8 Rgg3 a7+ Ka8 Ba6 Qc8 Be2 Kb7 a8B+ Kb8 Bb7 Bcd5 Bba6 Bb7 Bec4 Ka8 Nd3 Bf2 Bb3 Bg1 Qc1 Be3 Nf2 Ba7 Qe3
1R3QQK/1prqqR2/1PB2B2/3qR3/1nkP1Q2/5R1R/1pq1b1r1/rr4n1 b - - 0 1 legal: proof: f4 a5 c4 e5 b4 Qe7 b5 Qf6 g3 Qd8 Na3 exf4 Nc2 d5 Nb4 axb4 cxd5 Qd7 Bh3 Qd6 Bf1 Qd8 Nh3 f5 Qc2 h5 Kd1 f3 Nf2 f4 Ng4 hxg4 Qb3 f2 Kc2 f3 Qa4 Bd6 Qb3 Bf4 gxf4 Qg5 Kd3 Nc6 Qd1 Nb8 Kc2 Qd8 Kd3 Kf7 Kd4 c5+ Ke5 g5 a4 b3 d4 g3 h4 c4 e4 g4 a5 b2 h5 c3 b6 g2 h6 g1Q f5 g3 a6 c2 a7 g2 h7 Qg5 d6 Nf6 d7 Nd5 d8R Nc3 Qd2 Ne2 Ra3 Na6 Rh3 Qh1 Qf4 g1R Bg2 f1Q Rf8+ Ke7 Re3 f2 Ref3 Nb4 Bd2 Kd7 Rf7+ Kc6 Bc1 Qd8 f6 Kb5 Bd2 Rf8 h8Q c1Q Qg8 Bg4 Be1 Rc8 a8R Qc2 Rb8 Rc7 Bd2 Bh5 Ke6 Qfb1 e5 f1R Be1 Qbc1 Bh4 Kc4 Bg5 Qa4 Kf5 Qa3 e6 Qd7 Ke5 Rd1 e7 Qc2 e8R Ra1 Bh4 Rgb1 Re6 Qcc1 Kf5 Bg4+ Kg6 Qc2+ Kg7 Ng1 Kh8 Re8 Re1 Re2 Bg5 Rf2 Re5 Bh5 Rb3 Re2 Bc6 Qhd5 Rbf3 Rh2 Rfe7 Rg2 f7 Bg4 f8Q Bh5 Bf6 Bg4 Rd3 Be2 Rdf3 Qe3 Rf7 Qee4 Reh5 Qee7 Re5
7q/2pB1nn1/p4N2/4r1nP/2p2Nqb/2P1Q1N1/kN1r2r1/Q1Kb1BNB b - - 0 1 illegal: No possible last move
R2QrR2/K2P1pp1/3rr2n/2rPR3/1k1pbR2/2Bqn3/5Q1b/1Q1R2rB b - - 0 1 illegal: No proof kernel
RQn2B2/2Pb1kRn/1Bn1q3/1r1Pp3/p3B1p1/1BR5/n1bQ1K2/2b2Br1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 b4 Ke7 b6 Ke8 b5 Bb7 Bg2 Ba6 Bf1 Bc8 e4 Ke7 e6 d6 e5 Nd7 Nf3 Rb8 Nc3 Ra8 Na2 Nb8 Nb4 Ke8 e7 cxb4 Bg2 Kd7 Bh3 Ke6 Bf1 Kd5 e6 Kc5 Ne5 dxe5 Rg1 Kd5 Rh1 Kd6 e8B Ke7 d4 g5 h4 f5 c4 a5 b7 a4 b6 b3 d5 f4 h5 b2 h6 b1N h7 g3 c5 g2 c6 g1N c7 f3 Bd2 g4 Bc1 Nh3 Be3 Ng5 Bg6 Bd7 Kf2 Ra5 Bc2 Bh6 Qd2 Nc3 Rc1 Rb5 Bb3 Nc6 b8Q Qc8 b7 Na2 Rc3 Kf6 Ba7 Nge7 Bb6 Rf8 h8R Nh7 Rh5 Qe8 Rg5 Nc8 e7 Qf7 e8B Qe6 Rg7 Bf4 Qb2 Bc1 Bg6 Rf7 Be4 Ke7 Kg3 f2 Qd2 Kf6 Bfd3 f1B Kf2 Bg2 Bf1 Bf3 Bc5 Bd1 Bf8 Bc2 Qa8 Rc5 b8B Rb5 Ba7 Ba3 Qb8 Bc1 Bb4 Rf8 Rg5 Kf7 Bb6 Rg8 B4c5 Rg6 Re8 Rh6 Bf8 Rh1 Rg8 Rg1 Rg7+ Kf6 Qb7 Nd6 Ra8 Nc8 Rg6+ Kf7 Qb8 Rc5 Rg5 Rb5 Rg7+
1K1N3r/RQN2Q1p/1P1N2q1/4p3/r3N3/1qp3kP/1b1Rrn2/Nn1q2nR b - - 0 1 legal: proof: d4 b5 a4 d5 axb5 Nf6 e4 Bb7 c4 dxc4 d5 Ng8 d6 Bd5 exd5 f6 f4 Qd7 f5 Qc8 Bf4 Qd8 Be5 fxe5 f6 g6 Bd3 Bh6 Be4 Bf8 Bf5 gxf5 Ke2 Kd7 Kf3 a5 g4 c5 b4 e4+ Kf4 e5+ Ke3 a4 f7 a3 g5 a2 h3 c3 g6 c2 b6 c1Q+ Nd2 c4 b5 c3 g7 Qf6 b7 Qa3 b6 Nc6 b8Q Ra4 Ne2 Nh6 g8R Nd4 Qb3 Qg6 Ng3 Ne2 Qc4 Ng1 Nb3 Be7 Rg7 Qb2 Rd1 a1Q Rd2 Qd1 Na1 Qbb3 Qb7+ Kd8 f8N f4+ Kf2 f3 Ke3 f2 d7 Ba3 Qf1 Bb2 Qc4 Nf7 Ne6+ Ke7 d8N+ Kf6 d6 Nh6 Nc7 Kg5 d7 Kh4 Nf7 f1N+ Kf2 Qgh5 d8N Qg6 Nd6 Ng4+ Kg2 e3 Nge4 e2 Rd7 e1R Qf7 Ne2 Kf3 Nf2 Rd3 Nd2+ Ke3 Nb1 Rd2 Ng4+ Kd3 Ra8 Re7 Ng1 Rd7 Qbc2+ Kc4 Nf2 Kc5 Re2 Kc6 Qb3 Re7 Ra3 Kd7 Ra7 Kc8 Ra4 Kb8 Qg4 Nce8 Na3 Qc6 Nb1 Ra7 Qg8 Nc7 Qg6 Nc5 Kg3 Qcd5 Nd3 Qb7 Nf2 Nce4+
1K1R2r1/1nr4q/1R1pn3/Q2Pn2R/4p1RN/2PR2B1/4QRbp/k2rr2q b - - 0 1 legal: proof: e4 f5 a4 b5 axb5 fxe4 Qf3 c6 Qg4 Nh6 Qd1 Ng8 b4 Qc7 b6 Ba6 b5 Bc8 b7 Qd8 b6 Kf7 Be2 Ke8 Bb5 cxb5 h4 g5 g4 Bh6 f4 Kf8 f5 Qe8 Nc3 Nc6 Nd5 Nb8 Nf4 gxf4 g5 Qd8 g6 Bg5 hxg5 Ke8 Ke2 e3 Kd3 a5 Ke4 e5 Kd5 Ke7 d4 h5 c3 h4 g7 e4 g6 f3 Nh3 a4 Ra2 b4 Rc2 d6 Rhh2 e2 Qh1 f2 Ra2 f1Q Rb2 b3 Rg2 a3 Rd2 b2 Nf2 b1R Qh2 e1R Nd1 a2 Ne3 a1N Rg5 h3 Ng2 Na6 Kc6 Ra7 b8R Nc7 b7 Nh6 g8Q Ng4 g7 Nb3 Nh4 Nc5 Qe2 h2 Rh5 Qh1 Qa2 Qg8 Rd3 Qh7 Bf4 Rbd1 g8R Ne5+ Kb6 Kf6 Bg3 Be6 Rgg5 Rg8 Qa5 Kf7 f6 Bh3 Rg7+ Ke6 f7 Kd5 f8R Kc4 d5 Kb3 Rf2 N7e6 Rd8 Bg2 b8R Re7 Rg4 Rc7 Ra8 Nb7 Ka7 Rd2 Kb8 Kb2 Ra6 Kb1 Qc5 Rdd1 Rb6+ Ka1 Qa5+
1N2n2q/1PQKn1Qp/2N2krR/n2p3p/b2Pb3/4QNq1/3N1N2/2bb3R b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 b4 c5 h5 g6 h6 Qg5 Ba3 Qe5 axb5 Qc3 b6 Qf6 b5 Qd8 Bb4 cxb4 g4 a5 g5 Bb7 Bg2 Qc7 Bf3 Bd5 Bh5 gxh5 g6 Nf6 g7 Qd8 g8N Bb7 Kf2 Bc8 Ke1 Ra7 Nh3 Rc7 Ng1 Rc3 Kf2 Rg3 Ke1 Rg7 hxg7 Be7 Ra3 Bc5 Ra1 Bf8 Kf2 d5 Kf3 b3 c4 a4 d4 b2 e4 a3 e5 a2 c5 Nc6 b7 Ne7 b8N Bd7 b6 Ba4 Nd2 b1B Nh6 Rg8 c6 Be4+ Ke2 f3+ Ke3 f2 Kf4 f1N c7 Ne3 c8N Nc4 b7 Na5 e6 Qc7+ Kg5 Qg3+ Ng4 Kd8 Rb1 a1Q Qc2 Ne8 Ngf3 f5 Rb6 f4 Na7 Qc3 Qc1 Qc8 Qc3 Nd6 Kf6 Ne8+ Kf7 Bd1 Nf2 Ba4 Ne1 f3 Qc5 Nf5 Qc1 Ba3 Qc2 Bc1 Nac6+ Kc7 e7 Kd6 Nh3 f2 Nef3 f1B Nf2 Be2 Qc4 Nc7 e8Q Bed1 Qc3 Ne7 Kf6 Rh8 g8Q Qd8 Qe3 Qc8 Qgf7 Rg8 Qef8 Rg5 Q8g7 Qh8 Qg8 Rg6+ Kf7 Nb5 Ke8 Nc7+ Kd8 Ne8 Q7f7 Qf6 Qfg7 Qf7 Ra6 Ke6 Rb6 Kf5 Kd7 Qf6 Ra6 Nc8 Qe7 Qh8 Qd8 Ne7 Qc7 Kf6 Rb6 Rg5 Ra6 Kf5 Rb6 Bac2 Nb4 Rg7 Rd6 Ba4+ N4c6 Rg4 Rh6 Rg6 Rh4 Kf6 Rh3 Bac2 Rh1 Ba4 Qg7+
r3n3/1q1RRn1N/1Pk1p2p/r1QqR1nK/1Q3R2/2qN2RQ/4Pn1p/4b3 b - - 0 1 legal: proof: g4 b5 d4 c5 a4 cxd4 axb5 f5 Bh6 gxh6 Bg2 h5 Bh3 Bb7 g5 Bf3 Bg4 fxg4 h3 g3 Ra3 Bg7 Ra1 Bg4 hxg4 Bf8 c4 a5 b4 d5 f4 Kd7 g6 e6 g7 h4 c5 h3 f5 d3 g5 a4 b6 d4 g6 g2 Kf2 d2 Kg3 h6 Kg4 h2 f6 a3 f7 a2 c6+ Kd6 b5 d3 b7 Qc8 c7 Ra3 Qf1 d1Q Nf3 g1N Nc3 d2 Ne1 Qc2 Ne4+ Kd5 Ng5 d1N Nd3 Ra4+ Kh5 Ba3 f8R Nf2 Nh7 Ra5 Qh3 Qb3 Rf4 Nc6 b8Q Nf3 Rhd1 Qb7 c8Q Ng5 Rac1 Nd8 Rc7 a1Q Re7 Bc1 b6 Qc4 Qbc7 Qca2 Qc3 Bd2 Qb4 Qc3 Qc7 Be1 Qe5+ Kc6 Qed4 Qd7 Qdc5+ Kb7 Rd2 Ndf7 Qb3 Nf3 Ne5 Qac2 Qbb4 Qa2 Rd3 Qc7 Rdd7 Qac4 Nd3 Qd5+ Rf5 Nd4 Re5 Nf6+ Kh4 Rf8 g8R Rfa8 g7 Ne8 Kh5 Nf3 Qcd4 Nfd6 Rf8 Kc6 g8R Qb7 Rf4 Nf7 Rg3 N3g5 Qdc5+
n1KnnRQ1/1N3Qr1/qk1R3p/1r1Q1Q1n/p2QbPp1/N7/6NP/n1n5 b - - 0 1 illegal: No possible last move
3R3R/ppn1N2Q/1b1Nk2p/1Q3bn1/P2N2rq/1pPnK3/Q2r1N2/2Nr4 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 h5 b4 cxb4 g4 e5 dxe5 Qh4 Qd6 Qg5 Qd1 Qd8 h4 Be7 g5 Qb6 g6 Qc6 Bh3 Qf6 Bh6 Qf8 Bg4 hxg4 h5 Qf6 Bd2 Qb6 h6 Qd8 h7 Bf8 Bh6 gxh6 Ke2 Ke7 f4 d5 a4 b3 c3 d4 f6+ Ke6 f5+ Kd7 g7 g3 f7 g2 e6+ Ke7 f6+ Kd6 e7 d3+ Ke3 d2 e8N+ Ke5 Ne2 g1N Nc1 Qd7 Qf1 d1R Nd2 Qc7 Ne4 Bb4 f8Q Na6 f7 Nf6 g8N Ba5 Qa3 Nd7 f8N Ndc5 Qa2 Nd3 N8d6 Qd8 Ne7 Bf5 Ne6 Bb6+ Nd4 Nf3 Rg1 Ng5 Nf2 Rg8 h8Q+ Rg7 Qh7 Nc7 Nec8 Qf6 Ne7 Rd8 Rg3 Ne4 Rb1 Qh4 Rb2 Rg5 Rd2 Rg4 Rf3 Ng5 Qe2 Bc8 Rf8 Bf5 Rh8 Nc5 Ndc6+ Ke6 Qb5 Rd7 Rd5 Nd3+ Nd4+ Kf6 Nf7 Nc5 Ndc6 Ke6 Rd2 Rdd4 Rd3 Rb4 Rd7 Rbd4 Nd6 R4d2 Rdd8 Nd3+ Nd4+
1Q1r1q2/NR1Q1R1q/1p4bN/1Ppbr1P1/2R5/2r1pR1p/nk1R3K/2b1N3 b - - 0 1 legal: proof: e4 a5 b4 f5 f4 fxe4 c4 d5 cxd5 g6 b5 Bd7 Ba3 Bc8 Bb4 axb4 h4 Nf6 g4 Nh5 f5 Ra3 f6 Ra8 g5 Ng7 Bh3 Nf5 Bg4 Nh6 Bh3 Ng8 Bf5 gxf5 h5 Nd7 Nc3 Ne5 Nb1 Ng6 hxg6 Be6 Qe2 Bd7 Qd1 Bc8 Kf2 Kd7 Kg2 Kd6 a4 Ke5 d6 Kd4 a5 e5 g7 h5 f7 f4 d7 b6 a6 f3+ Kh2 e3 d3 e2 a7 e1R Na3 Kc3 d4 h4 d5 e4 d6 h3 Kg3 f2 Ne2+ Kb2 Rc1 f1B Nd4 b3 Rc4 Bg2 Nac2 Nf6 g8N Nd5 Kh2 Nc3 Rf1 Na2 Nh6 c5 Rf2 Bg7 Nc6 Qf8 d8Q Bf5 d7 Bg6 Qb8 e3 d8R Bd5 Qg4 Rc1 Rf3 Bf6 Ne1 Rc3 Rd7 Bd4 Rb7 Rg8 Qd6 Re8 a8R Re5 Rd8 Kb1 Re7 Qe8 f8R b2 Rb4 Bb3 Red7 Bgc2 R3f5 Rc4 Qe6 Bc3 Qh5 Bd2 Rb7 Rc3 Ra4 Bc1 Rd2 Bd5 Rf3 Ka1 Rc4 b1Q Qd7 Kb2 R8f4 Qf7 Qg6 Rd8 Qgd6 Qe8 Rf7 Qf8 Rdd4 Bh7 Qb8 Qg6 Rd1 Qgg8 Rdd4 Bg6 Na7 Qh7 Rd2+
4Brn1/1Bqp1B1p/4Pbk1/1Rq1B1r1/p1pQr1q1/8/nNP3BK/4Q1B1 b - - 0 1 illegal: No possible last move
KR2n2R/1p4pn/1PRn1pQR/1q1B3p/2P2r1Q/k1r2nR1/5r1B/4B2b b - - 0 1 illegal: No proof kernel
2NkN2r/4rQ2/p3b3/4RnK1/p1N1P3/PqQ1N1Np/1p1R3R/n1r2nr1 b - - 0 1 legal: proof: h4 g5 hxg5 e5 f4 exf4 b3 b6 Bb2 Bd6 Bc3 Bf8 Ba5 bxa5 d4 c6 c4 Qe7 e3 Nf6 c5 Qe4 b4 Ng4 b5 Nh6 b6 Ng8 Bb5 cxb5 c6 Bc5 dxc5 Qe7 Qd2 Qf6 Qd1 Qd8 Ke2 d5 Kf3 h5 g4 f5 e4 a4 c7 a6 c6 b4 b7 d4 a3 h4 g6 d3 g7 d2 g5 h3 g6 b3 Nc3 b2 Nd5 Rh5 Qc2 d1R Ne2 Rc1 Ng3 Ra7 Qc3 Be6 c8N Ne7 g8N Rh8 c7 Nd7 b8R Nc5 g7 Nb3 Ne3 Qd3 Rh2 Qb5 Rb1 Na1 Nd6+ Kd7 c8N Qb3 Rb4 Kd8 Nf6 Rb7 Rb5 Rc7 Kf2 f3 Re5 f4 Ndc4 Nf5 Ne8 Rg1 g8Q Rb7 Rf1 Re7 Ke1 f2+ Kd2 f3 Rd1 f1R Qf7 f2 Ke2+ Bd5 Rd2 Rc1 Kf3 f1N Kf4 Ng7 Nc8d6 Nf5 Kg5 Be6 Nc8+
1Q3Q2/1p2b3/1P1n1bKQ/p1qk3N/1n2pqb1/P2NQR1p/3R3R/4Qbn1 b - - 0 1 legal: proof: e4 f5 g4 d5 f4 a5 Be2 e5 Kf2 exf4 e5 f3 Bd3 f4 Be4 dxe4 Ke1 Ra6 d4 g5 d5 h5 Be3 c5 Bd4 cxd4 h3 Rf6 h4 Rf5 gxf5 g4 Rh3 Rh6 Rh2 Rg6 Rh1 Rg5 hxg5 Bd6 Qc1 Bc5 Qd1 Bf8 Kd2 Kf7 c4 f2 b4 f1B g6+ Ke7 a3 d3 d6+ Kd7 f6 Kc6 d7 h4 f7 h3 b5+ Kc5 g7 g3 e6 g2 b6 f3 Ke3 f2 Kf4 d2 Kf5 Kc6 c5 Qc7 d8R Qg3 Rh2 Bd6 f8Q Qb3 Nc3 Bc4 Qe1 d1N Na4 f1Q+ Kg6 Qe3 e7 Na6 e8Q+ Bd7 Qe6 Nf6 g8Q Nc3 Ne2 g1B Nf4 Ne2 Nb2 Nb4 Nh5 Ne8 Nd3 Qff4 Ra2 Qc1 Rd2 Bd4 Qh7 Bb5 Qb3 Bg4 Qhh6 Bf6 Rd7 Bc4 Rf7 Kd5 c6 Bde7 c7 Nd6 c8Q Ng1 Qb8 Qc3 Nc1+ Qd4 Qbe3 Bf1 Nd3 Bd8 Rc7 Bde7 Rcc2 Qc3 Rhf2 Qc5 Rf3 Nc4 Rh2 Nd6 Rcd2
N4RB1/brB3Q1/2Bp2Q1/K3n3/2bk1pqq/3P1Pr1/B2B1r1b/n2qB1n1 b - - 0 1 legal: proof: h4 c5 b4 g5 a4 gxh4 a5 e5 d3 e4 Kd2 b6 Ke3 Na6 Nd2 Nb8 Kf4 e3 Ra3 exd2 Ke3 Be7 Ra4 Bd6 axb6 Be7 b5 Bf8 Rb4 cxb4 Kd4 Ke7 Kc4 Kd6 e4 Ke5 g4 h5 g5 f5 c3 a5 f3 h3 g6 h2 b7 a4 g7 a3 b6 b3 Kb5 h4 c4 a2 c5 a1B c6 h3 c7 b2 Qb3 b1R Be2 Na6 b8B Ne7 g8Q Ng6 b7 Nc5 Bd1 Bd6 Bc2 d1Q Bd2 Bd4 Qb2 Qg5 Ne2 Nb3 Nc3 Na1 Bb3 Ba7 Ba2 Qh5 Re1 h1N Ka5 h2 Rg1 Nf2 Nd5+ Bd4+ Ba7 h1Q b8B Nh3 Nb6 Ba6 c8B Bc4 Bc7 Qg5 Rg4 Ng1 Rf4 Rh2 Be1 Rb8 Na8 Qh5 Qg2 R1b7 Qg4 Bf2 Be3 Qg5 Bc1 Ba7 Bcd2 Kd4 Qe8 Rf2 e5+ Kc5 e6 Qhh4 e7 Qgh5 Re4 Bh2 Rf4 d6 Be6 Ne5 Qeg8 Rf8 e8B Q5g5 Qh8 Rg8 Bc6 Qg6 Bf7 Qe6 Qgh5 Rg3 Bg8 Qg6 Qg7 Qgg4 Be4 Kd4 Qhg6 Qgh5 Rg4 Q5g5 Bc6+ Qf4 Rg5 Qfg4 Rh5 f4 Rf5 Qgh3 Rf6 Q3g4 Rf8
R2rb1rB/1pb2R1Q/p4br1/1P2bnpK/3nQ1Bb/4Q2q/kQ4P1/3B2Q1 b - - 0 1 illegal: No proof kernel
NN1B1k2/1pbq3p/p1p1Q2P/1N1N4/PR1r1pK1/rqQ2n2/8/1NnbNb2 b - - 0 1 legal: proof: f4 g5 fxg5 c6 c4 Qb6 d4 Qb5 a4 Qa6 b4 Qb5 d5 Qb6 c5 Qd8 e3 Qa5 Bc4 Qd8 d6 e6 Bd5 exd5 b5 cxb5 c6 b4 c7 Nf6 Ra3 Ng8 Rc3 Na6 Rc5 Nb8 Rc6 dxc6 Ke2 f5 Kf3 d4 h4 a6 g4 d3 d7+ Kf7 g6+ Kg7 e4 d2 e5 b3 h5 b2 g5 Bb4 h6+ Kf8 e6 Ba3 g7+ Ke7 g6 Qe8 d8N Bd6 Qb3 Ba3 Nf7 Bb4 Ne5 Nd7 Qc3 Ba5 Rh4 Nc5 Nd7 Nb3 Nb8 Nf6 g8N+ Kf8 Rb4 Nd7 Nf6 Rg8 Nd5 d1B+ Kg3 Qf7 Bg5 Ne5 Nf3 Qd7 Ne1 Nf3 Bd8 f4+ Kg4 Nc1 g7+ Ke8 Kh5 Bb6 e7 Kf7 Na3 b1Q e8N Qb3 Nb1 Ba5 Nef6 Re8 Nb6 Re3 Nfd5 Ke8 g8N Kf8 Nge7 Re2 Nf5 Ra2 Nd6 Ra3 Ne3 Qg7 Nb5 Bh3 c8Q Qd7 Ned5 Bf1 Nc4 Bc7 Ncb6 Qg7 Qe6 Qd7 Kg4 Nd3 Bf6 Qc8 Ne7 Nc1 N8d7+ Ke8 Bh4 Rb8 Na8 Qd8 Ndb6 Kf8 Bg5 Qd4 Bf6 Rd8 Nd7+ Ke8 Nb8 Kf8 Bh4 Qg7+ Bg5 Rd4 Nd5 Qd7 Bd8
1N1b1q2/N1N1krN1/P1pnR2N/Q2nrqq1/7n/2r1N3/N1PnK1p1/4R3 b - - 0 1 legal: proof: d4 e5 dxe5 g5 g4 b6 e4 h6 f4 a5 b4 axb4 Bh3 Bb7 f5 h5 Bf4 gxf4 g5 Bd5 Bg4 Be6 fxe6 hxg4 a4 d5 h4 f5 h5 f3 a5 f2+ Kd2 f1Q h6 g3 g6 b3 h7 b2 a6 f4 e7 c6 g7 g2 Rh2 b5 Ra4 f3 Rh5 f2 Rh6 b4 Re6 b3 Nc3 b1R Nh3 b2 Ra1 d4 Nf4 d3 Qe1 Nf6 g8N Ra7 Na2 Nbd7 Nh6 Nc5 Nd5 Nb7 Ne3 Rg8 h8N Nd5 N8f7 Rg3 Nd6+ Kd7 e8N Be7 Qe2 Re1 Nb5 Nd6 Qh5 b1Q Ng7 Qf8 Qg5 Bd8 Qf5 Rc7 Na7 Qb5 Qh5 Qh1 Rb1 Qh3 Qg5 Qhf5 Qh5 Rh1 Re1 f1N+ Kd1 d2 Qg5 Qb4 Ke2 d1N Neg4 Q5f7 Rf6 Ne7 Qd2 Qb6 Qa5 Qc5 Rg6 Ra3 Ne3 Nef5 Rf6 Nd2 Rg6 Nb5 e6+ Kd6 Rf6 Rh5 e7+ Kd7 e8N Nbd6 e5 Nh4 Rg6 Q7e7 Rf6 Rf5 Rg6 Qg5 Rf6 Rb7 Rg6 Rb5 Nc7 Rf7 Rf6 Qd5 Rg6 Qe6 Rf6 Qef5 e6+ Ke7 Rg6 Re5 Rf6 N6e4 Rg6 Kd6 e7+ Kd7 e8N Nd6 Nf6+ Ke7 Nd7 Rb3 Rh1 Rd3 Nb8 Nc3+ Ke1 Nd5 Ke2 Rb3 Re1 Rc3 Re6+
qN6/2N1n3/1kNp2PN/qbNPr2q/2qr1N2/p1brR3/1R4N1/K3Br2 b - - 0 1 legal: proof: b4 e5 a4 b5 axb5 h5 f4 exf4 g4 g5 c4 Na6 b6 Be7 b7 Bd6 b5 Bf8 Qa4 Nb4 Bh3 Nd5 c5 Nb6 cxb6 f3 Qf4 gxf4 g5 Rh6 Be6 Rh8 Bg4 hxg4 Kd1 a5 Kc2 f5 Kb2 c5 b8N g3 e4 g2 d4 f2 h4 f1Q b7 a4 e5 f3 e6 a3+ Ka2 f4 h5 f2 h6 f3 b6 c4 h7 d6 d5 c3 g6 c2 e7 Qe2 Nh3 f1Q Bg5 c1Q+ Bd2 g1R Nd7 f2 b8N Qcc7 b7 Qa5 Nc6 Rg3 b8N Ba6 Nc3 Bg7 Rb1 Rd3 Ka1 Bb5 Be1 Qh5 Rb2 Ra6 Nd1 Bc3 Nc5 Qfe2 Nb7 f1R Nc5 Qeg4 Ne3 Qc4 Nf4 Rb6 Nba6 Qa8 Neg2 Rb8 Rh3 Rb7 Nce6 Kd7 e8N Ne7 N8c7 Re8 h8N Rb6 Nab8+ Kc8 Nf7 Kb7 Ne2 Ra6 Ne2f4 Kb6 Nc5 Qab4 Nfe6 Ra4 Ned8 Ng8 Ndb7 Qf4 Rg3 Qba5 Re3 Re5 Nh6 Ne7 Nbd8 Qfb4 Nde6 Qb3 Nf5 Rad4 Nef4 Qc4 Nh6
n3n3/5b2/Nk1p1B2/N1qP1Kp1/N2NnbNQ/4pbrN/B1nN2P1/2r3n1 b - - 0 1 illegal: No proof kernel
1Q2Knr1/r1PR1rrr/1N5N/2rQR2N/3q1P2/3Q3k/2Q2r1n/b2R1n2 b - - 0 1 legal: proof: f4 a5 b4 b5 e4 h5 a4 c6 axb5 f6 b6 Bb7 b5 Na6 Be2 Nb8 d4 c5 Ba3 cxd4 Bb4 axb4 Bg4 f5 exf5 Bf3 gxf3 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 c4 g3 h4 b3 h5 b2 b7 d3 h6 g2 h7 e4 Ra5 e3 c5 g4 c6 g3 b6 d2 c7 e2 Rb5 e1R Nc3 Re7 Kd6 b1R Nge2 g1R Na4 g2 Ng3 Nh6 Qc2 d1N Nh5+ Kf7 Qc5 Bg7 f6 Kg6 f5+ Kg5 f4+ Kg4 f7 Ra7 f8R Rb2 f6 Rf2 f7 Ne3 Rh3 Ba1 Rh1 Rg8 h8N Rc1 Qa3 g1R Re5 Rc5 Re8 Rg3 f8Q Rh7 Qf7 Rgg2 Rc1 Kh3 R8e7 Ng4 Qfa2 Rg3 Qc2 Nh2 Nf7 Rg1 Nh6 R1g7 Nc3 Nef1 Nd5+ Kg2 Qa6 Kh3 Rf7 Nc6 Rb1 Nd4 Rbe1 Ne6 Rc1 Qc8 Ke7 Nf8 Qae2 d6 Qee4 Qg4 Ke8 Qd1 Qg6 Qd3 Rd7 Qc4 b8Q Qd3 Qb7 Qd1 Ne7 d5 Nc8 d4 Rdd5 d3 Qe4 Rf7 Rd7 Qd2 Qbd5 Qe3 b7 Qd4 b8Q d2 Qed3+ Rf3 Rd8 Rfg3 Nb6 d1R Ng7 Rd2 Rd1 Rg2 Rd7 Rf2 Q3e4 Rgg2 Nh5 R2g7 Qed3+
1k6/qb4BP/QQ2np2/4br1P/n2R1Bp1/4r1rq/Q1KBn3/5BRR b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 f4 b5 a4 e5 axb5 exf4 c4 a4 cxd5 a3 b6 Bd7 Nh3 Bxh3 b5 Bc8 Nc3 Nh6 Ne4 Ng8 Nd6+ Ke7 Ne8 Kxe8 h4 Kd7 e4 g5 d4 c5 Kd2 f3 d6 g4 b7 f6 h6 f2 h7 c4 d5 a2 e5 c3+ Kc2 Nh6 h5 Na6 b8B Bb7 b6 Kc8 e6 Nc5 e7 Nf5 e8Q Ng7 Qd3 Nge6 Qf7 Ra3 Bd2 Na4 Qa6 Rb3 Re1 a1Q Bh6 Qa3 Bg7 Qc7 Ba7 Be7 Rd1 Re8 d7+ Kd8 Rb1 Bd6 Rc1 Be5 Ra1 Ba8 b7 Qcc5 b8B Bb7 Rg1 Qe3 Rc1 Qh3 Be3 Qc5 Bd6 Qa7 Bb4 Kc7 d8R+ Re7 Bf4 Ra3 Rd7+ Kb8 d6 Rb3 Rc7 Re8 d7 Ra3 Rc4 Rb3 Bg2 f1R Rd4 Rf3 Bf1 Re7 Kd1 c2+ Kd2 Rbe3 Bc3 Rg3 d8Q+ Bc8 Re1 c1N Kc2 Ne2 Qdb6+ Bb7 Bd2 Re8 Qf8 Rd8 Qa3 Rd5 Qa2 Bc7 Bg2 Rf5 Rh1 Bd6 Reg1 Be5 Bf1
2qnb1kN/rn3R2/4n2Q/1P3NpR/2P3r1/pnK3Qr/Q1N3q1/2R4Q b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a5 a3 f5 exf5 g6 Kd2 Bg7 Ke1 Be5 a4 b5 axb5 a4 Bh6 Bg3 Bc1 Bc7 f4 g5 f6 Nh6 f5 Ba5 bxa5 Ng8 Bf4 gxf4 g4 Na6 g5 Qc7 g6 Kd8 g7 Nb8 Bc4 Ke8 Bf7+ Kd8 Bg6 hxg6 Qh5 Ke8 Qd1 Qd8 Kd2 Kf7 h4 d5 c4 e5 a6 a3 a7 g5 h5 d3 h6 e4 h7 d4 Rh5 e3+ Ke1 d2+ Ke2 f3+ Kd3 f2 Qc2 d1R+ Qd2 f1N Rh1 e2 Ra2 Bd7 Rc2 Na6 Rc1 Ne7 Rh5 Nc7 Nf3 Ne6 Ne1 Nc6 Nc3 Qc8 Nc2 Ncd8 Nd5 Be8 Nde3 e1Q g8R Qg3 Rg7+ Kf8 Rb7 Qg2 f7 Re1 Qf2 Nd2 Qg3 Nb3 Rd7 Rg1 Rb7 Rb8 a8Q Kg7 Re7 Rb7 Rc7 Ra7 Qe4 Rg8 h8N Kf8 Qeh4 Rg6 Qh1 Rh6 Rc6 Kg7 f8Q+ Kh7 Qb4 Kg8 f6 Rhh7 Qd2 Rh6 Nb4 Rhh7 Kc2 d3+ Kc3 Rh6 Qe2 d2 Rc7 Rh7 Nbc2 d1N+ Kd3 Rh6 Nf5 Nb2+ Kc3 Nd3 Qd2 Ndc5 f7+ Kh7 Re7 Ncb7 f8Q+ Nf7 Rh2 Rh3 Qh6+ Kg8 Rd7 Nfd8 Rf7 Rh4 Qe2 Rg4 Rh5 Rf1 Qhh2 Rh1 Qg1 Rh2 Qh1 Rh3 Ne1 Qcc6 Qa2 Qc8 Nc2
RQ1K4/1Q1P2bk/Q3P3/2r5/3pb1RB/2p3B1/2np1R1r/r1BrnR1r b - - 0 1 legal: proof: d4 h5 g4 b5 gxh5 c6 a4 Qc7 axb5 Qd8 c4 Nf6 d5 Rh7 d6 Nd5 c5 Rh8 Bg2 Nf6 Bd5 cxd5 c6 Ng8 f4 e6 e4 Qe7 c7 Nh6 e5 Ng4 Nf3 Nh6 Nd4 Ng8 Nc6 dxc6 Nc3 Qd7 f5 d4 Nd5 exd5 Kf1 Ba6 Ke1 Qe6 fxe6 Bc8 Kd2 g5 Kd3 f5 b4 a5 h4 c5 h6 g4 e7 Kf7 e8R Kg6 h7 g3 b6 f4 b7 a4 e6 f3 b5 g2 b6 g1R d7 a3 Rh2 a2 Re7 f2 Qf3 f1R Rf2 Nc6 b8B Ra5 b7 Nf6 Qh1 Ng4 Rg7+ Kh5 Rb1 Nh2 Rg4 a1R Qf3 Bg7 Qe2 Rg8 h8B Nf3 Qb2 R5a2 Qb6 Rh1 Qa6 Bf8 Bf6 Bg7 Bfg5 Kg6 h5+ Kh7 h6 Rf8 Bh4 Rf5 Ba3 Rfg1 Rbf1 Rh5 Bb2 Ra5 Bc1 c4+ Ke2 d3+ Ke3 d2 Kf4 d4 Ke4 Kh8 h7 c3 Kf4 Ne1 Ke4 R5a4 Kf4 Rh6 Kg5 Rc4 Kf5 Rh5+ Kg6 Rcc5 Kf7 Rh6 Ke8 Nb4 Kd8 Nbc2 Ba7 Rf6 b8Q Bb7 c8Q Be4 Qcb7 Rh2 Bb6 Rgh1 Bc7 Rff5 Bb2 Rd1 Bc1 Ra5 Bcg3 Rfc5 Qac6 Ra1 Qca6 Be5 Bg5 Kg7 h8R Kg6 Rhf8 Bg7 B5h4+ Kh7 Qf4 Nf3 Ke7 Rc7 Ra8 Nfe1 Kd8 Rc5 Qfb8
q1Q3QB/Rn2kB2/1RqR1P1K/1pPBb2b/8/5n1Q/2n2p1p/1Q3n1q b - - 0 1 legal: proof: b4 f5 f4 a5 d4 axb4 Nc3 c5 Ne4 h5 e3 b5 dxc5 d5 Nf3 d4 Ne5 Rh6 Ng5 Raa6 e4 Rad6 g3 Rd5 exd5 Rg6 Ne4 Rg4 h3 g6 hxg4 fxe4 f5 g5 Ng6 Kd7 Nf4 gxf4 Bg2 Ke8 Bh3 Ba6 Bf1 Bc8 Ke2 e5 a4 e3 Kf3 h4 c4 b3 d6 b2 c6 b1N c5 e2 c7 e1Q g5 d3 Kg4 f3 Kh5 h3 g6 d2 g7 e4 g4 e3 d7+ Ke7 a5 e2 g5 f2 g6 Nh6 g8B Bb7 c8Q Nf7 a6 Ne5 a7 Nf3 a8Q Bg7 Bd5 Be5 g7 Nc6 g8Q Na5 Bb2 h2 Kh6 Na3 Qb1 d1N Rg1 Nc2 Rg6 Nde3 Rb6 Qe8 d8R Qc6+ Rd6 Qc1 Ra4 e1Q Bd4 Qa3 Bfc4 Qh1 Qg4 Qa2 Qh3 Nf1 Bf7 Qa3 Bcd5 Qa1 Qab8 Ba8 Ra3 Nb7 Ra7 Bg3 Qg2 N3d2 Qh3 Qe8 Raa6 Nd8 Bh8 Be5 Bc4 Bf3 Qc6 Bh5 Bcd5 Nb7 Ra3 Qd7 Qg8 Nf3 Qcc8 Qc6 Raa6 Qc3 Ra2 Qa3 Ra1 Qa7 Ra3 Qb8 Ra7 Qa8 f6+
1r2N3/PRN2N1k/5rrq/2Rn1Q1n/n1b2q1n/1n1Q2Pq/KQ2R1N1/b7 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 h5 e4 a5 f4 axb4 f5 h4 g3 h3 Bg2 hxg2 Bb2 f6 Be5 Kf7 Bf4 gxf4 e5 Ke8 exf6 Rh7 Nf3 Rh6 Ng1 Rh8 h4 Kf7 d4 b5 Kd2 c5 Kc1 e5 Kb2 e4 a4 f3 h5 b3 a5 e3 d6 b4 h6 c4 d5 f2 h7 f1Q d7 c3+ Kc1 b2+ Kc2 e2 Kb3 e1R a6 c2 d6 c1N+ Kc2 Qf4 a7 Qb6 d8R Rf1 d7 Na6 Rh2 Nc5 Nf3 g1N Re2 Ba6 Nh4 Nf3 Nc3 b1N Kb2 b3 Nb5 Bg7 Ng2 Nc3 Ra5 Nd5 Rb8 Nh4 Nc7 Bc4 Rb7 Rb8 Qd3 Na4+ Kb1 b2 d8N+ Kf8 f7 Qbh6 Rc5 Ngf6 Ne8 Nb3+ Ka2 Rg8 h8Q b1Q+ Ka3 Qg4 Ne1 Nab6 Ng2 Qbc1+ Ka2 Na4 Qe3 Nh5 Qd3 Ba1 Qb2 Nc7 Nf6 Kg7 f8Q+ Kh8 Ne8+ Kh7 f6+ Rg6 f7 Qhe3 Qe7 Qe5 Qed7 Rf6 Q7f5 Nd5 f8N+ Kh6 Qdc3 Qh3 Nfe6 Qd4 N6c7 Kh7 Qcf3 Qh6 Nf7 Qdf4 Q3d3
K1Qk1r1R/2b1qRq1/Nq2n2n/2Qn4/1nQ1b3/2R2r2/1q1RP1Pr/3N3N b - - 0 1 illegal: No proof kernel forced: bxLB
r1nN2nr/1qR5/1NQ2qq1/P2b1n2/P1Nbp3/b4R2/2Nk1qQR/1K5Q b - - 0 1 legal: proof: e4 a5 c4 f5 f4 fxe4 b4 d5 bxa5 g6 cxd5 g5 g4 Ra7 Bh3 Ra6 Ba3 Ra8 f5 h6 Bd6 h5 Bf4 gxf4 g5 Nh6 Bg4 hxg4 Qb3 Ng8 Qc2 Nf6 Qd1 Ng8 d4 e3 a4 Kd7 h4 Kd6 g6 c5 g7 e5 h5 b5 f6 e4 f7 b4 h6 e2 Kd2 e1Q+ Kc2 f3 h7 b3+ Kb2 f2 Qc1 f1N Rh2 g3 Na3 g2 Ne2 g1Q Qc4 Ng3 Nb1 Qef2 Ra3 Nc6 Rh3 Be6 Qc2 c4 Nd2 Nge7 g8Q Bg7 f8N Na7 Nd7 Nac8 Qc1 c3+ Ka1 Kc7 d6+ Kc6 Rh6 Ngf5 d5+ Kb7 Rh1 c2+ Nd4 b2+ Ka2 Bf7 Rf3 Be5 Qg6 Re8 h8Q Bg7 Qf1 c1B Nc2 Bd4 Nc4 Bg8 Qe6 Qg6 Qg2 Bf7 Qhh2 Rh8 Qhg1 Qb6 Rh2 Ng8 Q1h1 Qc6 Nb8 Qb6 d7 Qa6 Qe8 Qaf6 d8R Be6 d6 Bd5 Nd7 Kc6 Nb6+ Kc5 d7 Bh6 Qe6 Bf8 Re8 Bd6 d8N Bf8 Re7 b1Q+ Ka3 Qb5 Ka2 Qc6 Rd7 Qb7 Kb1 Be7 Ne1 Kb4 Qc6 Bec5 Ne3 Kc3 Rc7 Kd2 N1c2 Ba3 Nc4+
1R3Q2/1RbR3n/rq1nknP1/4n1Nb/2p1Q1Q1/r1NNN2P/1qrb2K1/8 b - - 0 1 illegal: No possible last move
r2qq1q1/1N1QbP1Q/B1rPN1p1/1BnQ1np1/4b3/8/rB1Q1kbK/5N2 b - - 0 1 legal: proof: d4 b5 g4 d5 a4 e5 axb5 h6 c4 Nd7 cxd5 Nb8 g5 hxg5 d6 Bd7 Qd2 Bh3 Qd1 Bc8 b4 f6 h4 Rh5 e4 Rh6 d5 Rh8 Ra2 Rh5 Rd2 Rh8 Rd4 exd4 e5 f5 Rh3 Rh7 Re3 Rh8 Re4 fxe4 f4 Kf7 Kf2 Kg6 Kg2 Kf5 d7 a5 d6 c5 b6 c4 e6 a4 b5 g6 e7 d3 e8B a3 b7 e3 b6 Ke4 h5 d2 h6 e2 f5 Ke3 f6 e1Q f7 a2 h7 a1R Nh3 c3 Ba6 c2 Nf4 Nh6 Ne6 Ra2 Bb2 c1Q Kh2 Nf5 Qg4 d1B Nd2 Qc6 Nf1+ Kf2 Qd4+ Qe3 Qd5 Bf3 Qd2+ Qe2 Qd5 Rg8 h8Q Bg2 Qh7 Be7 Qd2 Qc3 Qd5 Qh8 Qd2 Qc7 d8N Nd7 b8Q Nc5 Beb5 Bcb7 Qc8 Bbe4 Nb7 Qd8 Qd7 Qg7 Na5 Rf8 b7 Qg8 b8Q Re8 Qbb7 Rc8 Qbd5 Rc6 Qd1 Rf8 Ba4 Qb5 Q1d3 Qbb8 Nb7 Qe8 Qc3 Qbd8 B4b5 Qb6 Nd4 Qc8 Qd8 Qd7 Qc7 Ra8 Ne6 Qde8 Qd7 Qbd8 Qcd2+
R3n2n/rBqn1BR1/4n1Qb/1K4P1/QQ1BppkP/3n1RB1/2r1bb2/8 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 g4 Bb7 f5 Ba6 Nc3 Bc8 Nh3 h6 Nf4 gxf4 Ne4 h5 g5 Qb6 Nf2 Qd8 Ng4 hxg4 Kd2 Kf7 Kd3 e5 Kc4 d5+ Kd3 a5 h4 e4+ Kd2 a4 c4 a3 b4 g3 b6 g2 c5 g1B b5 a2 b7 d3 Kc3 d4+ Kc4 d2 b6 d3 c6 Qc7 Qa4 d1N Be3 d2 Bd4 Ra7 Rh3 Bf2 Rf3 Nb2+ Kb5 Nd7 b8B d1N b7 Ne3 Bc4+ Nd5 Rd1 a1N Bb3 Ra6 Bba7 Ne7 b8R Ng6 Ra8 Bh6 Bc4 Nc2 Rc1 Qd8 c7 Nd3 Bab6 Bb7 c8B Ra7 Ba5 Rf8 Be1 Nh8 Bb3 Qc7 Rb1 Kg8 f7+ Kh7 f6 Kg6 Ba2 Rg8 f8Q Kh5 f7 N5f6 Qg7 Ne8 f8Q Kg4 Qfb4 Rf8 Bd5 Rf6 Ba2 Rc6 Qg6 Rc3 Rb2 Bd5 Bb7 Bf7 Qg8 Bh5 Bf7 Rc4 Qg6 Rc6 Bc5 Nd4+ Kc4 Ne2 Rh3 Be3 Rd2 Nb2+ Kb5 Nf8 Qd6 Kf5 Bb6 Rc2 Ba2 Bf3 Bad5 Kg4 Qg6 Bg1 Rd4 Nd3 Ba2 Be3 Rd7 Bd4 Rg7 Nd7 Bf7 Bg1 Bg3 Bf2 Bh2 Rd2 Bc5 Nd4+ Kc4 Bd1 Rf3 Ne6 Bg3 Be2 Kb5 Rc2 Bd4
1b1nkR1n/2b2rQb/4B3/1p1p1P2/B1B3Rb/1b1PrQ2/q3R3/q2QQK2 b - - 0 1 illegal: No possible last move, all moves rejected
1Qq2RQ1/7q/4qk2/1RpR4/2Q2qb1/3Q2Bn/1rP1pP1K/B2rnrnB b - - 0 1 legal: proof: e4 d5 a4 dxe4 g3 e5 Nc3 b5 axb5 e3 Na4 e4 Nf3 Bd6 Nc5 Bf4 Ne6 fxe6 gxf4 h6 Ne5 h5 Ng4 hxg4 b4 Ke7 d4 a5 h4 g5 f5 c5 d5 a4 h5 g3 h6 a3 b6 g2 d6+ Kf6 d7 g1Q h7 g4 b7 e2 b5 e5 b6 g3 Bb2 a2 Rh3 g2 Rh1 Nh6 Rh5 Qh1 Qd2 g1Q Bd4 Qg4 Qd1 Nc6 b8B Nf7 b7 Qf4 Rh2 Ng5 Bd6 Rb8 Rh5 Nh3 Rb1 a1R Qd3 Qg8 Bc3 Nd4 Qc4 Qe6 Bb2 Rd8 h8R Qhh2 Bg2 Qg8 Bh1 Qh7 Qa2 Qg4 Qc4 Qhf4 Bc1 Qgg8 Rb5 Rb1 Bc7 Rb2 Be3 Ra8 b8Q Ra1+ Kd2 e1N Rg5 Ndf3+ Ke2 Rd1 Kf1 Rc1 Bd4 e3 Rh5 Qe6 Rg8 Nfg1 Rf8+ Kg7 f6+ Kg6 f7 e4 Re5 Kf6 Bc3 Rd1 Bd4 Re8 d8Q+ Re7 Rh8 Qc6 Bc3 Bg4 Qdd3 Qe8 Bd6 Qc8 Rf8 Ra7 Bc7 Raa1 Bd4 Nef3+ Kg2 e2 Bc3 e1Q Bd4 e3 Rd5+ Qe5 Bd6 e2 Bc7 Qb4 Bc3 Qb3 Bd6 Qd4 Bg3 Ne1+ Kh2 Qe5 Ra5 Qb6 Rb5 Qbe6 Bd4 Rac1 Bc3 Rb4 Ba1 Rb2 Rh8 Qf4 f8Q+ Qhf7 Qe8 Qh7 Qg8 Nef3+ Kg2 Rf1 Qe8 Ne1+ Kh2 Rd1 Qd8+ Kf7 Re8 Kg7 Qg5+ Kf7 Qg8+ Kf6 Rf8+
N2r1bQ1/1K2Nq2/rN3N2/Rrp1rQ2/8/1PRp2bb/1QP5/rR2bkn1 b - - 0 1 legal: proof: d4 e5 a4 exd4 g4 g5 e4 b5 axb5 h6 f4 Ke7 e5 Nc6 e6 Ke8 Bh3 Ne5 fxe5 h5 Bf4 gxf4 g5 Rh7 Bf5 Rh8 Bg4 hxg4 Kf2 Ke7 h4 c5 b6 f5 h5 d5 h6 a5 h7 a4 b7 d3 b8N d2 g6 f3 Ke3 f2 g7 f1R b3 a3 Rh2 g3 Ra2 f4+ Kd3 f3 Rb2 g2 Qe1 d1R+ Ke3 a2 Kf4 a1B Qd2 f2 Rh3 d4 Ke4 Qd7 Qf4 Rfe1+ Ne2 g1B Qf5 f1R Na6 Bh2 Nd2 Nh6 g8Q Bg3 Rb1 Nf7 Nc4 Bc3 Nc7 Ra6 Na8 Qc7 Kd5 Ng5 Nf4 Nf3 Ncb6 Ng1 Ne2 Qa7 Nf4 Re4 Kc6 Bce1 Rb2 Rda1 Rb1 R1a5 Nd5+ Ke8 e7 d3 Rh4 Rb5 Rg4 Re2 Rc4 Be6 Rc3 Bc8 Qf3 Bh3 Qf5 Re4 Qgg5 Rg8 h8Q Re2 Qc1 Re4 Qb2 Re3 Qe4 Kf7 e8N Ke6 Nef6 Qf7 Ne7 Re2 Qg6 Re4 Qhh7 Rh8 Qgg8 Re3 Ng6 Kf5 e6 Re5 Ne7+ Kf4 Kb7 Kf3 Qhg6 Kg2 Qf5 Qg6 Nc6 Qf7+ e7 Qc4 e8R Qf7+ Qd7 Rf4 Re6 Kf1 Ne7 Rfa4 Rd6 Ra1 Rd4 Rh4 Ra4 Rd4 Ra5 Rd6 Qc8 Rd8 Qf5+
1n1BNk2/2b1Qpr1/1rNq2PQ/Kp4nB/5Pb1/6n1/p1N1r3/3bQNB1 b - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 g5 a4 c6 axb5 Nf6 b6 Ng8 b5 cxb5 f4 h5 Ra3 g4 Rf3 gxf3 h4 Bh6 g4 Qe7 g5 Bf8 Rh3 Qf6 Rg3 Qd8 Rg4 hxg4 Kd2 d5 Kc3 a5 e4 a4 b7 f2 e6 a3 h5 a2 e7 g3 Kb4 g2 c4 d4 g6 d3 h6 d2 c5 Ra5 e5 Ra8 c6 Qd3 c7 Bg4 c8N Qd5 h7 Ra7 Nf3 g1N Be2 f1B Na3 Qc6 Qe1 d1R Nc2 Bg2 Be3 Nh3 Bg1 Ra6 Nh2 Rb6 Nf1 Rd2 Na7 Ng5 Ka5 Qd6 Nc6 Nf6 Bf3 Rg8 h8Q Nfe4 Qh6 Rg7 Be2 Nd7 b8B Ng3 Bc7 Nb8 Bd8 Bd5 Bd1 Bb3 Bf3 Bc8 Bh5 Bg4 Na1 Bbd1 Nc2 Kd7 e8N Re2 Qc3 Qc7 Qe1 Bd6 Na7 Qc5 Nc6 Bc7 e6+ Kc8 e7 Kd7 Nf6+ Kd6 e8Q Qd5 Qf8+ Ke6 Qc5 Qd6 Ne4 Kd7 Qcb4 Ke8 Nf6+ Kf8 Ne8 Bh3 Qe4 Bg4 Qe7+
7k/rQ3B2/NBN1q3/1bPn3p/qP2Q2b/2pp4/Nr1rB1nQ/1N2n1K1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 a4 gxh4 axb5 f5 exf5 c4 b4 d5 g4 Qc7 Rh3 Qd8 Rd3 Na6 c3 Nb8 Ra2 Nd7 Rc2 cxd3 c4 Nb8 c5 Nc6 Rc3 Nb8 Rc4 dxc4 f4 Kf7 Kf2 Kg7 d5 e5 d6 a5 b6 h3 d7 e4 g5 a4 g6 h2 b7 h1R Qe2 c3 Kg2 Qe8 d8N e3 Nc6 Nd7 b8N a3 Na6 Nh6 f6+ Kg8 g7 a2 f5 a1Q Qa2+ Qe6 Ne2 Rh2+ Kg1 Ng4 Qc4 h5 Qe4 Be7 f7+ Kh7 f8Q Ndf6 Qf7 Qa4 Bd2 Nd5 Nc1 e2 Bf4 e1N Be2 Bh4 Bc7 Rg8 Bb6 Bd7 Na2 Ra7 Qe7 Rga8 g8B+ Kh8 f6 Nge3 f7 N3g2 f8Q Re8 Qff5 Rf8 Qg6 Rf2 Qg3 Be8 Bf7 Bd7 Bg4 Rd2 Be2 Be8 Qb7 Rb2 Nd4 Bb5 Nc6 Nge3 Bg4 Rhd2 Be2 N3g2 Qh2
2n2rN1/1q3N1q/5RpQ/n1PN1r2/KpP5/Q1p4b/1Q1QR2b/2R1qr1k b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 b4 c5 bxc5 Rh3 Qf3 Rh7 Qd1 Rh8 c3 d5 Bb2 a6 Bb5+ axb5 c4 d4 Bc3 dxc3 f4 Kf7 a4 Kf6 h4 e5 d4 e4 a5 g6 h5 e3 h6 g3 a6 g2 d5 b6 d6 b4 a7 b5 h7 b3 d7 b2 Nd2 b1Q Rh2 b4 Ne4+ Kg7 f6+ Kf7 f5 e2 Nh3 Qe8 d8Q Qa2 Qb3 Qd7 Rc1 Ne7 Nf4 Qa6 Qb2 Qc7 Qd3 Qab7 Qdd2 Nbc6 Nd5 Rb8 a8Q g1R+ Kf2 Qd7 Ke3 e1Q+ Kd3 Rf1 Qaa3 Na5 Kc2 Bh6 Re2 Bf4 Re3 Bh2 Re2 Kf8 f7 Kg7 f8R Rg8 Nf4 Kh6 Nd5+ Kh5 h8N Kg4 f6 Kf3 f7 Qdc7 Nef6 Bh3 Rd8 Rg7 f8Q Rf7 Ng8 Rf5 Rd6 Qd7 Qfh6 Rbf8 Ra6 Nc8 Rf6 Qh7 Nf7 Qf2 Rb1 Kg2 Ra1 Kh1 Rc1 Nc6 Kb3 Na5+ Ka4 Qh4 Rc2 Qe1 Rc1
5b2/1QpR3K/nQn2k2/P3QBq1/2p3Rp/R2n2B1/b1Q1r1nP/3r2bB b - - 0 1 legal: proof: e4 f5 exf5 g5 b4 a5 f4 axb4 f6 Bg7 f5 Bh6 Nc3 Bf8 Nge2 b5 Na4 d6 Nf4 gxf4 Nc5 dxc5 c4 Bd7 cxb5 c4 Qa4 Be6 Qd1 Bc8 Kf2 Kf7 Kf3 e5 Kg4 h5+ Kg5 b3 d4 h4 a4 e4 g4 f3 b6 e3 b7 e2 a5 e1B d5 b2 d6 b1N d7 f2 Ra3 Nd2 Bg2 f1N Qc2 Rh6 Rg1 Bb4 Bh1 Qe8 d8R Qc6 Rd7+ Ne7 Rgg3 Nb3 Bf4 Na6 b8Q Ra7 Qb6 Nbc5 Rg1 Ne3 Bg3 Rh7 Qb7 Rg7+ Kh6 Qd5 g5 Bf2 Rg2 Rg8 Kh7 Rd8 Rg1 Nd3 g6+ Kf8 g7+ Kf7 Rg2 Ra8 Rg1 Ng2 g8B+ Ke8 Qb6 Nc6 Be6 Kf8 f7 Qe5 Rd6 Ke7 Rd7+ Kf6 Qb7 Bf8 Qb6 Kg5 f6 Bb7 Bf5 Qd5 Rf1 Bg1 Rf4 Re8 Rd4 Re2 Rf4 Rd8 Rd4 Be7 f8Q Qe5 f7 Kf6 Qe8 Bf8 Rg4 Qf4 Qee3 Qg5 Re7 Bc8 Qb7 Be6 Qeb6 Bd5 Rd7 Be4 Qa2 Ndf4 Qd2 Bb1 Qc2 Ba2 Re7 Rd1 Rd7 Bg7 f8Q+ Ke5 Qfa8 Bf8 Qe8+ Kf6 Qee4 Nd3 Qe5+
2q1b3/QqrQ1bB1/1Q3Prr/p2n2r1/8/P3R3/2kB1Rpp/1R2KBbB b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 Nc3 f6 bxc5 f5 g5 Be6 Nd5 Bd7 Ne3 Bc8 Ng4 fxg4 h4 g6 f4 Qd4 f5 Qd7 f6 Qd6 h5 Qd8 Ne2 Nd7 Ng3 Ne5 Nf5 gxf5 Ba3 Qb6 Bc1 Ng6 hxg6 Qd8 c4 Kd7 d4 Ke6 c6 a5 a3 h5 c7 b5 c5 Kd5 c6 e5 g7 g3 g6 b4 Bg2 Kc4 d5 Kc3 d6 e3 d7 e4 Ra2 b3 Bf1 h4 Rg2 h3 Qd6 b2 Ke2 b1Q Rhh2 f4 Qe6 f3+ Kd1 f2 Qa2 Ne7 g8R Rh6 g7 Ra7 Qe6 Nd5 Bd3 Bc5 Rh1 h2 Re8 Kb3 g8Q e2+ Kd2 Ba6 Qe7 Bb5 Qge6 e1R Q6d6 Qa8 d8B Rg1 Ke2 Qc2+ Bd2 e3 Qf7 Qc3 Be7 Bd4 Bc4+ Kc2 Bf8 Qb3 Qb4 Qd8 Bg7 Qb2 Kf3 e2 Re5 e1R c8B Ne3 c7 f1B Ba6 Be8 Bd5 Bc4 c8Q Re2 Qcc5 Qc8 Qd7 Rc7 Qa7 Qb1 Qbc5 Qbb7 Qcb6 Bb3 Bc6 Bbf7 Re4 Ree1 Bd5 Ref1+ Ke2 Rf5 Re6 Rfh5 Bf3 Nd5 Bc4 Bf2 Re3 Rg6 Bb5 Rhh6 Bc4 Rb1 Re1 Rb4 Rb1 Bg1 Ke1 Ra4 Bf1 Rag4 Rf2 R4g5 Bh1 g2 Rff3 Qba8 Rf5 Qab7 Rf2
5Rq1/Bp2rQ2/k2rnp2/R2B4/n3r1bP/1P1B1R2/R2K1nQp/n2Q3q b - - 0 1 illegal: No proof kernel
2K2n2/1B2Q3/rNPPp1bQ/p3Nn2/q2Q1b2/BNpb2p1/2BN4/1rk1q3 b - - 0 1 illegal: No possible last move
n2RQ3/1kpp1BK1/1R6/n1Q2B1r/n2p1n2/p1Rq4/BPP5/1brQbR2 b - - 0 1 illegal: No proof kernel
2nQKQ1b/4R1Qp/q3P1B1/1k1Bp3/rp1bbp2/1P2rb2/3R1Bq1/1R4B1 b - - 0 1 legal: proof: c4 b5 h4 e5 a3 d5 cxd5 g5 Nf3 gxh4 Ng1 Nc6 a4 b4 Nf3 Nd4 Ng1 Nb5 axb5 Bf5 Ra4 Bh3 Ra1 Bc8 f4 f6 e4 Kd7 Nh3 Ke7 f5 Kd7 Nf4 Ke8 Na3 Rb8 Nc4 exf4 e5 Ra8 e6 Bb7 Ne5 fxe5 Ra5 Ba6 Ra1 Bc8 Kf2 c5 Kf3 a5 Ke4 c4 g4 c3 d4 a4 b3 h3 g5 c2 f6 h2 Kf5 a3 b6 a2 g6 Ra5 g7 Rb5 f7+ Ke7 b7 Kd6 b8B+ Qc7 Be3 c1B Bf2 Bb7 Bc4 Bc6 Qg4 Ra5 Ba7 Be3 Rhb1 Nf6 g8B h1B Qg7 Qb7 Kg5 Be7 f8Q Bf3 Bf7 Rg8 Bg6 Ne8+ Kf5 Qa6 Bg1 Kc7 d6+ Kb7 d5 Bd4 d7 Bf6 d6 Ra4 Bb6 Bcd5 d8R+ Kc6 d7 Bfe4+ Kg4 Nd6 Kh5 Bf3+ Kh6 Bde4 Bd5+ Kb5 Re8 Qa8 d8Q Nc8 Re7 Qb7 Rd1 Qc6 Rac1 a1Q Rb1 Qa2 Bc5 Qg2 Rd2 Qa6 Ba7 Bb2 Baf2 Bd4 Qgf7 Bh8 Q7g7 Qh2+ Kg5 Qg2+ Kf6 Bd1 Kf7 Bdf3 Qh6 Rg7+ Ke8 Rg8 Bf7 Rg3 Qfg7 Bd1 Bh5 Re3 Bg6 Bh5 Qf8 Bhf3 Qhg7
1R2b3/1q3Qp1/q1Bp2Q1/2p4p/5r1r/PRbb2B1/1bP1QBR1/k1nK3B b - - 0 1 illegal: No proof kernel
2N3bQ/Qq1kb3/n1nB1p2/1np1QQ2/2r3n1/3r1PN1/q1Pb1BB1/n1N3K1 b - - 0 1 legal: proof: e4 d5 b4 dxe4 a4 b5 axb5 g5 f3 g4 Ra3 g3 Re3 h5 Re2 Rh7 Rf2 gxf2+ Ke2 Rh6 g4 Rh8 h4 Qd5 g5 Qd6 Rh3 Qd7 Rg3 Qd8 Rg4 hxg4 d4 a5 h5 c5 b6 e5 d5 f6 g6 g3 g7 e3 d6 e4 b7 a4 b5 g2 b6 a3 h6 a2 h7 a1N Na3 Qc7 Qd5 Ra4 Qa2 Kd7 Bb2 Be7 Bd4 Na6 b8Q Qb7 Nb5 Rc4 Nc3 Nh6 g8N Ng4 Qb2 Ne5 Qa7 Nc6 Nh6 Rd8 h8Q Nab8 Na2 Na6 Kd1 e2+ Kd2 e1B+ Ke2 e3 Nf7 Ra4 Nc1 Rc4 Qh5 Bd2 Qf5+ Ke8 Qc3 Be6 Qb2 Kd7 Qc3 Qc7 b7 Qc8 b8B+ Qb7 Qe5 Bd5 Qd3 Be6 Bc7 Bd5 Qdf5+ Be6 Kd3 e2 Ke4 e1N Nge2 g1N Ng3 Ne2 Bg2 f1Q Bb8 Nd3 Bc7 Rc3 Bf2 Ned4 Bb8 Rc4 Bc7 Be1 Ke3 Nb5 Bb8 Qh1 Ke2 Qh8 Kf1 Bd2 Kg1 Qg7 Nh8 Qf7 Ng6 Ndb4 Bc7 Nd5 Bb8 Ne3 Bc7 Bf8 Ne7 Ng4 Nc8 Be7 Bb8 Qg8 Bc7 Qg5 Bb8 Qe3 Bc7 Qa3 Bb8 Qa2 Bc7 Ke8 d7+ Kf7 Qg5 Nh2 Qb2 Bd5 Qh5+ Ke6 Qh8 Ng4 Bb8 Rf8 d8Q Rg8 Qc7 Rd8 Qf4 Rd6 Qbe5+ Kd7 Qfg5 Bg8 Qgf4 Rdd4 Bd6 Rd3 Qff5+
n2r3n/q1b2r2/1N2nBb1/2nnP3/2P1q3/3BB2B/kQ2nN1B/2BKN1r1 b - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 g5 axb5 e5 fxe5 Nc6 Ra3 Nb8 h4 Nc6 g4 Nb8 Rf3 h6 Rf4 gxf4 g5 h5 Rh2 Rh6 Rg2 Rh8 Rg4 hxg4 e4 Ke7 c4 f5 b6 a5 g6 d5 b7 f3 b5 a4 b6 g3 e6 Kd6 e7 Kc5 e8N Kb4 g7 a3 h5 g2 h6 f2+ Kd2 f4 e5 d3 h7 f3 Qe2 Kb3 Qe3 a2 Nh3 g1Q Qe1 a1N Kd1 d2 Ng5 d4 Nd6 Ka2 Nde4 Na6 b8B Qd5 b7 Nb3 Na3 Nc7 Nb1 Ne6 Kc2 d1N Be3 Nc3 Nd6 Ra7 Be2 f1N Ndf7 f2 Nd2 Nb5 Nde4 d3+ Kd1 d2 Nfd6 Nbc7 Bd3 Ng3 Qf1 Na8 Nf3 Nh6 g8B Ne2 Ne1 Nf7 Qg2 f1R Nf2 Qe4 Bh6 Bd7 Nc8 Nbc5 Nb6 Bd6 Bc7 Bc6 b8B Be8 Be3 Rb7 Bd8 Bc7 Bdg5 Ra7 Bgf4 Rb7 Bh2 Ra7 Kc2 d1N Bc1 Ne3+ Kd2 Nd5 Kd1 Bd8 Bd6 Bc7 Be7 Rb7 Beg5 Ra7 Nh1 Qgd4 Nf2 Rg1 Bgd2 Nh6 Bdf4 Bg6 Bfe3 Rb7 Bf7 Rd8 h8B Qa1 Bg8 Nf7 Bf6 Nh8 Bf7 Bd6 Be8 Rf7 Bd7 Bc7 Bc8 Qb2 Bd7 Qa3 Bc8 Qa7 Bd7 N6f4 Bh3 Nfe6 Qg4 Qf5 Qd4 Qe4 Qb2#
nqk1q1NK/1N5N/qPR2NB1/Pq1b4/6RN/3rb1R1/2Nb3b/qr3n2 b - - 0 1 legal: proof: c4 g5 h4 gxh4 e4 f5 exf5 d5 cxd5 a5 b3 b5 Be2 a4 Bf1 a3 Bb2 axb2 a4 Bg7 Qc2 Bh6 Qc5 Bf8 Qa3 b4 Bd3 bxa3 Ba6 Qd6 Bf1 Qd8 Ke2 Kd7 Ke3 e5 Ke4 h5 g4 c5 d4 h3 f4 h2 a5 a2 b4 c4 b5 c3 g5 c2 f6 c1B Kf5 h4 Kg6 h3 f5 e4 f7 e3 b6 e2 f6 e1Q d6 Bh6 d5 Na6 Nf3 Qee8 Rg1 h1Q Rg4 h2 Na3 b1Q+ Bd3 Be3 Nc2 Qhf1 Nh4 Qb5 Rc1 Bb7 Be4 Kc8 d7+ Kb8 d6 a1B Bf5 h1Q Bd3 Qc8 d8R Nc7 d7 Be5 Bf5 Qfc4 Rcg1 Bd2 R1g3 Bd5 Bd3 Kb7 Be4 Qb8 Rc8 Qa1 d8N+ Ka6 Nb7 Ne7+ Kh5 Bef4 g6 Nf5 f8N Ne3 f7 Nf1 g7 Bd6 Kg6 Bhe3 g8N Qe2 Rg1 Bh2 Nh7 Ra7 R1g2 Na8 Nhf6 Qed3 Kg7 Rh5 Nd8 Rd7 Bg6 Rd6 f8N Rd7+ Nf7 Kb7 Nh7 Qa6 Rc3 Qdb5 Kh8 Rh6 R2g3 Rd6 Rb3 Kc8 Nd8 Rh5 Rb1 Rf5 Nb7 Rf4 Ng2 Rb4 Rc1 Rb1 Nh4 Bf7 Rd1 Rd3 Re1 Bd5 Re2 Bg5 Re6 Bge3 Rc6+
K3b1NN/P4qN1/1N1b4/1nkpb1N1/2Q1nR1r/Pqq1R1RN/2r3n1/4b3 b - - 0 1 legal: proof: d4 a5 e4 g5 b4 f5 bxa5 c5 exf5 cxd4 f4 h6 g4 Ra7 f6 Ra6 f5 Ra8 Bf4 gxf4 g5 h5 Be2 Nh6 Bf3 Ng8 Bg4 hxg4 Kd2 b5 Kd3 d5 c4 Kd7 h4 Kc6 a3 e5 g6 f3 f7 g3 f6 f2 g7 f1Q+ Qe2 b4 c5 b3 a6 g2 h5 b2 h6 Bd7 h7 Qc8 a7 Be8 Rh2 Bd6 f8N Na6 f7 Nf6 g8N Nc7 Ne6 Nb5 f8R Ne4 Nd2 Qf7 Nh3 g1B Rg2 Bh2 Nf3 b1Q+ Qc2 Qa2 Ng7 Qb3+ Qc3 Qcc7 Rg3 Rc8 Re1 Qa5 Nfg5 Qab4 Ke2 d3+ Ke3 d2 Kd3 d1N Ree3 Qg6 Rf4 Qf7 Ke2 Qa5 Qc4 Qac3 Kf3 Ndf2 Ke2 Nd3 Kf3 Ne1+ Ke2 Kc7 c6 Kb6 c7 Ng2 Qa4 Rb8 c8N+ Kc5 Nb6 Rc8 Kf3 Rc7 Kg4 Nf6+ Kf5 e4 Re2 e3 Re1 Qh5 Ke6 e2 Qe4 Rc6 Qd3 Ne4 Qc2 Bg6 Kd7 Be8+ Kd8 Qf7 Qc1 Nc7 Kc8 Be5 Kb8 Nb5+ Ka8 Bd6 Ref1 e1B Re3 Rc7 Rg4 Bhe5 Rgg3 Re7 Rf4 Re6 Qb1 Rh6 Qa2 Rh4 Nf6 Rf8 h8N Rg8 Nf5 Rg6 Ng7 Rgh6 Ng8 Rf6 Rfg4 Rf2 Rf4 Re2 Qc2 Rf2 Qd3 Rc2 Qc4+
1b1b4/1B1B1RrB/q1Pn4/1B2K3/r1rP4/Bb3p1r/NBn1k3/Rb1rR3 b - - 0 1 legal: proof: f4 a5 b4 h5 bxa5 e5 e4 c5 Qe2 h4 Qb5 h3 Qb4 cxb4 Nc3 exf4 e5 d5 Ne4 dxe4 gxh3 Ne7 h4 Ng8 h5 Qd3 Kd1 Qd5 Ke1 Qd8 Kf2 Ke7 d4 Ke6 c4 Kf5 a4 Kg4 h4 b5 e6 f5 c5 g5 c6 b3 a6 e3+ Kg2 b2 a7 b1B a5 b4 h6 b3 h7 e2 h5 e1B h6 f3+ Kh2 f2 a6 f4 e7 b2 e8B Ba5 Bd2 Qb6 Bb5 f1R Ne2 Kf3 Bg6 g4 Be1 Nf6 Bc3 Rd1 Nc1 Bd6 Na2 Ne8 Re1 Be6 Bf5 g3+ Kh3 Rg8 h8R g2 h7 Rg7 Rf8 g1R h8B Bb3 Rf7 R1g3+ Kh4 Kf2 Bh7 f3 Kh5 Bf4 Kh4 Nd6 Kh5 Rg8 Bg7 Rh3+ Kg4 Bg3 Kg5 Qb7 Kf6 Bd8+ Rfe7 Bh2 Bf8 Rgg3 Ke5 Qb6 Bd2 Rg7+ Bf4 Rc1 Rf7 Rc4 Be7 Be4 Bf8 b1R Be7 Rd1 Bf8 Rhg3 Bc1 Bb1 Bb2 Rh3+ Ke6 Ne4 Bfa3 Nd6 Kd5 Nd7 Ke6 Ne5 Kd5 Nd3 Ke6 Rb8 a8B Nb4 a7 Qa6 Bb7 Ra8 Bc8 Nc2 Bd7 Be5 Rg1 Ke2 Rf1 Rb8 a8B Rb6 Bb7 Bg3 Ba4 Rbb4 Bb5 Ra4 Kd5 Ne4 Rh1 Bb8 Rf1 Nd6 Ke5 Nb4 Rh1 Nc2 Re1+
1k1N1N2/2bp2nN/3P2n1/B1r2b2/K1B5/nN1r3Q/3PnBNN/2r2brb b - - 0 1 legal: proof: f4 b5 c4 g5 a4 gxf4 axb5 h5 h4 e5 b4 Qg5 g4 Qf5 Rh3 Qd3 g5 e4 Rf3 Qd5 cxd5 Be7 Raa3 Bc5 Rg3 Bf8 Rg4 hxg4 Rf3 exf3 e4 Kd8 d6 c5 b6 a5 b7 f5 g6 g3 b5 g2 e5 c4 g7 c3 e6 a4 b6 a3 h5 c2 h6 a2 h7 a1N Na3 Na6 b8B Bb7 e7+ Kc8 e8N Be7 Nh3 g1R Nf6 Nc5 Nc4 Ra3 Bc7 Ne6 Bb2 c1R Na5 Rd3 Nb3 Bd8 Bd4 Ne7 g8N Ng7 Nh6 Ng6 Nhg4 f2+ Ke2 Rg8 h8N Bh1 Nh7 Nc2 Nh2 Na3 Qe1 Rc5 Kd1 f3 Qe6 f4 Qf5 Kb7 Qh5 Ka8 b7+ Ka7 Ba5 Kb8 Be3 Bc7 Qh6 Rc8 Bd4 Nc4 Kc2 Na3+ Kb2 Rc1 Be2 f1N Bf2 Ng3 Bf1 Ne7 Ng6 Ne2 Ngf8 Ng6 Qh5 Bb6 Ka2 R8c5 Qf5 Bc7 Qe6 Ka7 b8N Kb7 Nc6 Kc8 Be1 f2 Nd8 f3 Nf4 Kb8 Qf5 Nh8 Qh3 Ng6 Bg2 f1B Bf2 Ng3 Kb2 Be2 Ka2 Bd1 Kb2 Bc2 Bf1 Ne2 Ng2 Bb1 Bd4 f2 Be3 Ng3 Be2 f1B Bf2 Rf3 Bc4 Ne2 Nd4 Bd3 Kb3 Bf5+ Ka4 Rd3 Nb3
1B1b1N2/1rn2p2/BbNKb3/1rP2rP1/1N2q3/3BB1pb/1n1B2kB/3Rb3 b - - 0 1 legal: proof: e4 b5 b4 c5 f4 g5 fxg5 d5 a4 dxe4 axb5 Nf6 b6 Ng8 g4 h5 g6 Be6 g5 Bf5 b5 Be6 Ra4 Bc8 Qg4 hxg4 Rb4 cxb4 Kf2 Kd7 Ke3 Kd6 Kf4 Kd5 d4 a5 h4 e5+ Ke3 b3 b7 b2 b6 a4 g7 g3 c3 a3 h5 a2 h6 a1B h7 Bh3 Nf3 Ne7 Bd2 Ng6 Ba6 Qe8 Rc1 Bc5 Rd1 Nf4 Nh4 Ra7 Na3 b1B Nc2 Nd3 Ng6 Nb2 Nf8 Rg8 h8B Ba2 Bb5 Na6 b8B Qe7 b7 Nc7 Ba6 Bb6 c4+ Kd6 c5+ Kd5 Ke2 e3 Kf3 e4+ Kf4 e2 Be3 e1B Bg1 e3 Bh2 Na8 Be5 e2 b8B Rb7 Bec7 Ba7 Ba5 Nc7 Bd2 Bb6 Be3 Bf1 Kf5 Qe4+ Kf6 Bh3 Bd2 Qg4 Ke7 Ke4 d5 Kf3 d6 Be6 d7 Kg2 d8N Qf5 Nb4 Qe4 Nh7 Rf8 Ndc6 Rd8 g8B Rd5 Nf8 Rf5 Bb5 Na4 Bg7 Bf6+ Kd6 Nb2 Bh7 Bd8 Ba6 Bf2 Bc4 e1R Ba6 Rh1 Bd4 Be1 Bg6 Rhf1 B4e3 R1f3 Bf4 Ra3 Bfe3 Ra5 Bh5 Rb5 Be2 Re5 Bc4 Rf5 Bd3
n2R2B1/P1q5/rR3K2/3N1Br1/B1PRbk2/1bBr1Bb1/2n1ppb1/3B2n1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 d4 c5 b4 axb4 dxc5 Ra4 Kd2 Ra3 Ke1 Ra8 e4 f6 Qd2 Be7 f5 Bd6 Qf4 Bf8 Na3 exf4 e5 Ne7 e6 Ng8 Nc4 Be7 Ne5 fxe5 Bb2 Bd6 Bc1 Bf8 Ke2 Ke7 Kd3 b5 Ke4 h5 a4 d5+ Kf3 d4 Ke4 f3 g4 b3 g6 Kf6 c6 f2 g7 b4 a5 h4 e7 h3 e8B h2 a6 d3 c3 b2 c7 b1B Ra2 d2+ Bd3 Kg5 f6 b3 f7 b2 Bd7 Bd6 f8R Rh5 Ba4 Nd7 Ra1 Nh6 g8B Nb6 Bdc2 Nf7 Ne2 Be6 c8B Bb3 c4 Qc7 Nf4 d1R Rd8 Rd3 Rd1 Ra7 Bd2 Na8 Bc3 h1B+ Ng2 Rd5 Rd2 Rd3 Bd1 B1c2 Bf5 b1N Ra2 Na3 Rb2 Bb1 Bgh7 Nc2 Bf3 Qe7 Rd1 Qc7 Ne3 Bg2 Bhg6 Rb7 a7 Rb6 Nd5 Ra6 Nb4 Rh8 Bh5 Rg8 Bd4 Rg6 Kd5 Rg8 Ke6 e4 Bc3 Kf4 g5 e3 g6 Ng5+ Kf6 Nh3 g7 Ng1 Bhg4 Bh1 Rd2 Bg2 Bd1 e2 Bf3 Rh8 g8B Rh5 Nc6 Rg5 Ne7 B3a2 Rb6 Bb3 B3g4 Ke3 Bf3 Bg3 B5e4 Kf4 Bf5 Re3 R2d7 Rd3 Rd4+ Ke3 Bgh7 Na3 Rh8 Rd2 Be8 Be4 Ba4 Nc2 Rhd8 Kf4 Bg8 Rd3 Nd5+
4R1RN/NKnqn3/1nn1Q1P1/p3N2N/1p1rR3/2k1q1Nb/1b2P1N1/1q3r2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 e5 c4 exf4 cxd5 Nc6 b5 Nb8 Bb2 Nh6 Ba3 Ng8 b6 Nf6 g3 Ne4 Bb4 axb4 a4 Qf6 a5 Qd4 a6 Qf6 a7 Qd8 Bh3 Nf6 Bf5 Ng8 Bd3 Ne7 Bc4 Ng8 Ba6 bxa6 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 d6 c5 d5 h5 g4 f3 b7 h4 d7 h3 d6 h2 g6 a5 g7 f6 g5 f2 Nh3 f1N Nf4 Ne7 g8N Nbc6 b8N Ne3 Ng2 N3d5 Nd2+ Kc3 Nf1 c4 Ng3 Nb6 Qd5 Bg7 Qe6 Qc7 d8N Qd7 Raf1 Rh4+ Rf4 Rg4 Re1 h1Q Nf7 Qf1 Nh8 f5+ Ke3 Qh1 Re4 f4+ Kf3 Be5 Nf6 Bd4 Ra1 Qb1 Nfh5 Rh4 g6 Rh1 Ra2 Bg7 Rd2 Rf1+ Kg4 f3 Kf4 f2 Ke3 Qd8 d7 Qc7 d8R Qd7 Re8 Qdd3+ Kf4 Kb3 Qf5 c3 Qb5 c2 Rf8 c1Q Qe5 Bh3 Qf6 Rd1 Nd7 f1N Rg8 Nb8 Ke5 Ne3 Rc2 Qdd2 Rcc8 N3d5 Kd6 Nbc6 Qe6 Rf1 Rce8 Rd8 a8N Bb2 Nc7 Qdd1 Nb5 Qe3 Na7 Kc3 Nf6 Nf4+ Kc7 Nfd5+ Kb7 Nc7 Ne5 Qd6 Qc8 Qe6 Nfh5 Rd4 Qd7 Qg4 Qd5 Qd7 Qe6
N1b1K3/5B1N/BR4rp/b2kPqn1/Bpnr3r/r2B1b1P/B5Np/2B5 b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 f4 axb4 fxe5 Be7 Bd2 Bd6 Bc1 Bf8 a4 g5 Ra3 bxa3 Qd4 g4 h3 Qc7 Qf4 Qd8 Qh2 g3 Be3 gxh2 Bd2 Qb6 Bc1 Qd8 Kf2 Ke7 Ke3 Ke6 Kf4 b5 g4 d5 e4 f5 c4 h6 g5 d4 g6 a2 a5 a1R g7 b4 a6 d3 a7 d2 c6 d1R c5 Rd7 c7 Bd6 c6 Ra6 Nf3 Ra3 Ng5+ Ke7 Bd3 Qf8 Re1 Qe8 Nc3 Nf6 g8B Qf7 Nh7 Ke6 Nd1 Be7 Re2 Bd8 Ne3 Rd4 Ng2 Nbd7 Re3 Rb8 a8N Nb6 Re1 Nc4 Re2 Bd7 c8B Ba5 c7 Rb6 Ba6 Bc8 Bb5 Rc6 Ba4 Rcd6 Kg3 f4+ Kh4 f3 Re3 Bd7 c8B f2 Ba6 f1B Re1 Bc8 Re2 Ke7 e6 Rc6 Re1 Kd6 e7 Be2 e8B Bf3 Re3 Qd7 Bef7 Qf5 Re1 Ne3 Ba2 Nc4 Bf7 Rg8 Re2 Rg6 Re3 Nd7 Re1 Nc5 Re3 Qd7 Re2 Rg4+ Kh5 Rh4+ Kg6 Qf5+ Kg7 Rb6 Kf8 Ne6+ Ke8 Kc5 e5 Ng5 Rf2 Bd1 Rf4 Rg6 Rg4 Bf3 Rf4 Qe4 Rf6 Qf5 Re6 Kd5 Rb6+
1K3nnN/1BPpr2B/4B1p1/2q1NbQ1/p5P1/2BrkbBN/4B3/q3nn2 b - - 0 1 legal: proof: g4 b5 a4 bxa4 h4 f5 b4 c5 d4 e5 e4 g6 h5 Qg5 h6 Bg7 hxg7 Qf6 Rh3 Qf8 Rd3 Qe7 Rd2 Qf6 Ra3 Qd8 Re3 Nh6 dxc5 Ng8 Rd4 exd4 e5 Kf7 Re2 Ke8 Re4 fxe4 Kd2 Ke7 c4 Ke6 f4 a5 b5 h5 b6 h4 b7 h3 f5+ Ke7 c6 e3+ Kd3 h2 Ke4 h1N Kd5 d3 e6 Kf6 Kd6 Kg5 f6 Kf4 c5 a3 f7 a2 f8N a1Q e7 d2 e8B e2 c7 e1N c6 a4 Bb2 Nf3 Qc1 Ne5 Bf7 Qf6+ Ne6+ Ke3 Nh3 Nf3 Na3 Ng3 Be2 Qc3 Neg5 Ne1 Be6 Na6 b8B Bb7 c8B Nc5 Kc7 Nf1 Nf7 Ba6 Bb7 Bd3 Kc8 Bf5 Kc7 Rh7 Nh8 Ra5 Kc8 Rb5 Bg3 Rb3 c7 Qa5 Bf6 Rd3 Kb8 Qb5 Bc3 Qc6 Bd5 Ne6 Ba2 Nf8 Be6 Ne7 g8B Qc5 Ng1 Rg7 Bh7 Ng8 Nh3 Rf7 Bc8 Re7 Nc4+ Ke4 Ne5 d1B Qb2 Ke3 Bb7 Bb3 Qb1 Bd5 Qb6 Bf3 Qd6 Rg7 Qe7 Rf7 Qf6 Re7 Qg5+
R2b4/1qR4p/2QBBbbr/bR2p2P/K1nk3R/1r2Pbp1/1RB4R/1n3b2 b - - 0 1 illegal: No possible last move
BB1N4/1p6/3Kn1B1/1Nn2r1q/1B1bBrBr/1Pp3p1/pN2b1P1/3qrk1R b - - 0 1 illegal: No proof kernel
q1RBQ3/1Nbb3K/n1Pr3B/b3Q1Br/k7/Q1b5/Pn1r1bb1/nB3Q2 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c5 b4 axb4 Na3 d5 Rb1 c4 Rb3 cxb3 c4 Rh6 c5 Rh8 Nc4 dxc4 Ke2 Kd7 Kf3 Kc6 Ke4 Kb5 h4 g5 d4 e5 f4 g4 h6 g3 d5 g2 c6 b2 h5 b1B+ Qd3 b3 f6 b2 d6 Ka4 f5 b5 d7 c3 f7 b4 f6 b3 Kf5 c2 Kg6 e4 h7 e3 h6 e2 Bg5 c1B Qe4+ Bb4 f8B e1B f7 Na6 Be2 Ne7+ Kg7 Bf4 Qd3 Nf5+ Kg6 Ba5 Rh5 Nd4 Qf5 Nc2 Nh3 g1B Qc5 Bec3 Nf2 Na1+ Bd3 Bfc7 Ne4 Bf2 Nd6 Qe8 d8B Bd7 Bf5 Be4 Nb7 Bg2 Bb1 Rc8 Bg7 Qg8 f8Q Rb8 Bc2 b1R Qf7 Rg1 Bb1 b2 Qff5 Rd1 Rh1 Be3 Qf1 Bf2 Rh3 Rd2 Re3 Qb3 Re8 Qb6 Rf8 Qa7 Rg8 Qa8 Re8 Rf8 h8Q Rf6+ Kh7 Rfd6 Bf8 Rc8 Qhe5 Rb8 Kh8 Rc8 h7 Rb8 Bfh6 Rc8 Bg6 b1N Bf5 Na3 Bb1 Nc4 Kg8 Be1 h8Q Nb2 Kh7 Rb8 Bdf6 Bh4 Rc8 Bg3 Qhe8 Bf2 Nd8 Rb4 Nb7 Rh4 Bd8 Rh5 Qa3+
b1R1N1rb/2QPn3/pq1r4/P7/4n1R1/2b1k3/KQ2R1nb/QRbB2qQ b - - 0 1 legal: proof: e4 c5 c4 f5 f4 fxe4 b4 d5 cxd5 g5 bxc5 Nc6 f5 Nb8 g4 Bg7 Bb2 Bf8 Be5 Na6 Na3 Nb8 Nc4 h6 Bf4 gxf4 g5 h5 Ne3 Qa5 Ng4 hxg4 Ke2 Qb6 Ke1 Qd8 d4 Kd7 Kd2 e5 Kc1 b5 Kb1 g3 h4 f3 a4 b4 a5 f2 d6 Kc6 d7 Kd5 g6 e3 h5 Ke4 g7 e2 c6 e1B d5 g2 f6 a6 h6 b3 c7 b2 h7 Ke3 f7 e4 d6 Ne7 g8Q Bb7 c8Q Bg7 f8R Qb6 d8R Bec3 Qa2 Nd7 Rg8 Nc5 Be2 f1N Nh3 g1B d7 Bh2 Ng5 Rb8 Rge8 Ba8 Nf7 Rg8 Nd6 Bh8 Rg1 Bd2 Bh5 Bc1 Rg4 Rb7 Qb8 Rc7 Rc8 Rc6 Nf7 Rd6 Qc7 Nd3 Qd5 Ne1 Ka2 Ng2 Rb1 Nd2 Qdb7 Kf2 Qh1 e3 Qbb8 e2 Qbb7 e1B Qbb8 Bf6 h8Q Ne4 Qbb7 Ke3 Qg7 Rd3 Nd6 Bfe5 Qf6 B1c3 Qff1 Bh8 Qd1 Nd5 Re5 Rd2 Ne8 Ne7 Rb5 Nf5 Rg7 Qd6 Ra1 Ne7 Qd5 Qb6 Q5b3 Rd6 Rf5 Bd2 Rf2 Kd4 Be2 Qb4 Rg4 Ke3 Bf3 Qb5 Qc1 Qf1 Bd1 Qg1 Re2+ Kd4 Qb5 b1Q+ Ka3 Qb4+ Ka2 Qc5 Qbb2 Qb6 Rb1 Bdf4 Qa1 Kd3 Qa3 Bc1 Q3b2 Kd4 Rf2 Ke3 Re2+
2N4R/1P2BQQ1/bRqb3r/rrk4p/1r2P2n/5Q2/1n1Q4/2RRrqnK b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bd6 h6 Bf8 g4 Ne7 g5 Bd7 Bh3 Bc8 Bg4 Ng8 Bh5 Bg7 Na3 Bf8 Nc4 Ba6 Ne5 gxh5 g6 Bb7 g7 Bc8 Ng6 hxg6 Kf1 Kd7 Kg2 Kd6 b4 c5 e4 a5 d4 f5 h7 c4 b6 g5 b5 g4 b7 g3 b6 c3 Qf3 c2 Qe2 f3+ Kh3 f2 Kg2 f1R Nf3 a4 Bg5 c1R Nh4 a3 Ng6 a2 Ne7 Nc6 b8R f4 Rg1 f3+ Kh1 g2+ Kh2 f2 Qb2 Nh6 g8Q Ne5 Qf7 Rc5 Rc1 Ra4 Qb3 a1R Bh4 Re1 Qbf3 Qe8 Rf1 g1N Kh1 Re3 Rfd1 f1Q Bf6 Rg8 h8Q Rg6 Qhg7 Ba6 b7 Re1 Bh4 Kd7 d6 Nc4 d5 Rb5 Rc8 Nf5 Rc6 Qc8 Rb6 Qc6 Nc8+ Be7 Bg5 Rab4 Bf6 Nh4 Bg5 Kd8 d7 Kc7 d8R Rh6 Rh8 Nb2 d6+ Kd7 Qff8 Ke6 d7 Raa5 d8Q Bc5 Qgf7+ Ke5 Qd2 Bd6 Qc4 Qd3 Qcf7 Kd4 Rb1 Kc5 Q8g7 Qe2 Be7 Qf1 Rbc1+
2n1r3/Q1q1R2n/1B4P1/n2B1k2/rB1p2PQ/6Bb/qr1N2Q1/1q2bQKn b - - 0 1 illegal: No possible last move, all moves rejected
B2R2r1/4nQ2/r7/1R1bnP1P/Q1Rk2n1/3qNQ1K/3bnRQp/r1rq4 b - - 0 1 illegal: No possible last move, all moves rejected
nbr1q3/1K2QQ2/2BRBP1q/2bb1NPQ/1p5r/n2b1p2/Bn5Q/5kB1 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 axb4 c4 e5 cxd5 g5 hxg5 Be7 f4 Bd6 f5 Be7 Ra2 Bf8 e4 f6 Ra3 Be7 Rf3 Bc5 Rf4 Bf8 Na3 Qd7 Nc4 exf4 e5 Qe7 e6 Qd8 Ne5 fxe5 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 h5 e7 b5 e8Q b3 a5 h4 f6 h3 d6 b2 g6 b1N a6 b4 d3 h2 g7 Nc6 a7 Nge7 g8B Na5 d7 Nc4 Ba3 Ba6 Nh3 Nc8 Ng1 N8b6 Bc1 Rh4 Qf7 Qe8 d8Q Nba3 Qb8 Nb2 Ne2 c6 Qbc7 Rc8 Bh3 Na8 d4+ Kb5 d5 Kc4 Ng3 c5 Rf1 h1B+ Rf3 Be7 Be3 Bd6 Qce7 Bb8 d6+ Kc3 Kd5 e4 d7 c4 Qg1 Kd3 d8Q c3 Nf5 Ke2 Qa5 c2 Qh2+ Ke1 Bb6 c1Q Bg1 Bd3 Rf2 Bg2 Rd2 Kf1 Qac5 f3 Qb5 e3 g5 e2 Qc4 e1B Qg4 Bf2 Qgh5 Qe1 Bg4 Bh3 Rd1 Bc7 Rd2 Qf8 Kc6 Bc5 Kb7 Bb8 Rd1 Qh6 Rd2 Bb5 Rd4 Bd3 Rd6 Nb6 a8B Qe3 Nd4 Qe1 Bd7 Be6 Nf5 Ba2 Qef8 Qe8 Q8e7 Bdb1 Be6 Bd5+ Ka6 Bbe4 Bc6 Na8 Kb7 Bd3 Qfg6 B5e4 Ba2 Bd5 Be6 Nc2 Qgh7 Na3 Qh7f7
r1Rb4/3R4/p1p2Q2/r1q1Pb1q/Q1PR2Q1/1n1nRB1k/1r1Qr2N/4b2K b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 f4 e6 d4 e5 dxe5 fxe4 g4 Ke7 f5 Ke8 Bf4 h6 Nd2 gxf4 Ndf3 Ba3 Ng5 Bd6 Nh7 Bf8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Ne2 Kf7 Ng1 Ke8 Kf2 Ke7 Kg2 d5 h4 c6 c4 f3+ Kh2 f2 b4 e3 h5 a6 b6 e2 b5 e1B f6+ Ke6 f7 Kf5 g6 d4 g7 g3+ Kg2 d3 h6 d2 b7 Nf6 g8Q Nbd7 b8R Be7 f8R Qa5 h7 Bd8 b6 Nc5 b7 Nd3 Ra3 Qc5 Be2 f1R Qa4 d1Q Rh4 Rf2+ Kh1 Be6 Bf3 Re2 Re8 Ne4 Re7 Nd2 Rd7 Nb3 Rc8 Rb2 b8Q g2+ Kh2 Re2 Qd6 Rb8 Rd4 Rb7 Nh3 g1R+ Nf2 Rg2+ Kh1 Rb5 Ng4 Ra5 Qg7 Rb2 Nh2 Rge2 Qg2 Re8 Qh3+ Kg5 h8Q Bf5 Rd5 Rf8 Qhf6+ Kf4 Qh5 Kg3 Rd4 Rh8 Qhg5+ Kh3 Qd2 Qc1 Qd1 Qg5 Qd2 Qh5 Qde6 Na1 Rc3 Nb3 Qg8 Nf4 Re3 Nd3 Qgg5 Be7 Rcc7 Ra8 Rc8 Bd8 Qg4+
4bQ2/R1Rb1P1n/2r2b2/pRpR1Q2/p1kP1K2/rb2Q3/q4Q2/1Bnb1N2 b - - 0 1 illegal: No proof kernel
1rb1Q1R1/p3NR2/4Pb1R/P2bbrpq/Kb2QpQb/6R1/7Q/B1k3n1 b - - 0 1 legal: proof: f4 e5 g4 b5 c4 bxc4 e4 d5 exd5 e4 g5 Nd7 Bh3 Ne5 fxe5 Bf5 Nc3 Bc8 Nce2 g6 Bf5 gxf5 Nf4 h6 g6 Bb7 Ne6 Bc8 Ng5 hxg5 b4 Kd7 a4 c5 d4 c3 h4 c4 d6 Ke6 g7 Kd5 e6 c2 Kd2 e3+ Kc3 Ke4 b5 e2 Kb4 c3 b6 e1B h5 f4 a5 f5 h6 f3 b7 f2 b8R f1B d5 f4 h7 Bh4 Ra3 Ne7 g8R Bc4 d7 Ng6+ d6 Qe8 d8Q Bd5 Bb2 Ke3 Qg4 Kd2 Rb7 c1B Rf7 c2 Ne2 Ne5 Nc3 Nf3 Ba1 Bb2 Qe7 c1B d7 Bg7 d8Q Rb8+ Qb7 Bf6 Qd7 Be5 Ka4 Ng1 Qb4 Rb5 Qe4 Bf6 Rb3 Ba3 Qe7 Bcb2 Rh3 Kc1 Qd7 Bdb7 Nd5 Bb4 Ne7 Rf5 Rbg3 Bd5 Rh2 Bbe5 Rh1 Qf8 Qe8 Qg7 Rgf8 Rg8 h8Q Qg6 Qhh5 Rh8 Rg8 Qh7 Qh3 Qh6 Q5g4 Qh5 Qh2 Qh7 Qhe2 Bcb7 Rg6 Rf8 Qd7 Rb8 Qf2 Bc8 Rg8 Qh8 Qe8 Qh6 Re3 Bg3 Rh5 Bh4 Qh2 Qg6 Rh6 Qh5 Rg3
3n3Q/1Pp1qr2/B1pr1BN1/2P1p3/1p1Qn1n1/1kbbb3/2QB3B/R5QK b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 Nh6 gxh5 Nc6 b5 Ng8 Qf3 Nb8 Qc6 dxc6 a4 b6 Ra2 Qd3 Rb2 Qd7 Rb4 Qd8 Na3 Ba6 Nc4 axb4 a5 Bb7 a6 Bc8 Na5 bxa5 d4 Kf7 f4 g5 Kf2 g4 Kg2 e6 h4 g3 c4 a4 d5 a3 a7 a2 f6 a1B h6 Bb2 h5 Bg7 b6 Qd6 f5 Qf8 b7 Qd6 c5 Qe5 d6 Qd4 h7 Qe5 d7 Qe3 d8B Nd7 h6 Nf8 Bd2 Bc1 Nh3 Qe2+ Kg1 g2 Nf4 Qe3+ Kh2 g1N Ba6 Ne2 Ng6 Nc3 Rg1 Rb8 a8Q Ne4 Kh1 Bd7 Be7 Rd8 Bd6 Be8 Bh2 Rd6 Qd8 Qe2 Bc3 Be3 Bd2 Nd7 Rf1 Ne5 Ra1 Ng4 Qd7+ Ne7 Qd8 Rf8 h8B Nd5 h7 Bd7 Be1 Nf4 Bd2 Bh6 Bg7 Bd4 h8Q Bc3 Bc4 Bg5 Ba6 Qe3 Qh6 e5 Qh8 Ne6 Qh6 Qh3 Bh8 Be3 Qg5 Nh6 Qg1 Ng4 Qc1 Bc8 Bg7 Qh7 Qg1 Rd3 Qd4 Nd8 Qc1 Be6 Bh8 Bc4 Bg7 Kg8 Bh8 Qe7 f7+ Kh7 f6 Kh6 Rb1 Kg5 Ra1 Kf5 Bg7 Ke6 Bh8 Rg8 f8Q Rg7 f7 Bb5 Qg8 Bc4 f8Q+ Rf7 Qfg7 Bb5 Qc4+ Rd5 Qd4 Bd3 Q8h7 Rd6 Qh4 Bg5 Qdg1 Kd5 Qgh6 Be3 Bf6 Bb5 Qhf2 Kc4 Qh8 Kb3 Qf4 Bd3 Qff2 Bf4 Qd4 Be3 Qc2+
3q1r1r/p2k4/QRp1Q1R1/BpB5/RP3r2/qnp2R2/2b1P2R/R4K2 b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 gxh5 Rh6 a4 Bd6 a5 Nc6 a6 Be7 Kf2 Na5 Ke1 Nb7 axb7 Rh8 b8Q Bc5 Qb7 Rb8 Qa8 Ba3 Nxa3 Rb6 Nb1 Rb7 d4 c6 c4 Qe7 d5 Qf8 d6 Qe7 Bg2 Qd8 Bd5 cxd5 c5 Qc7 c6 Rb6 Na3 Rh6 Nf3 Rh8 Nd4 Qd8 c7 Rb7 Nc4 dxc4 Nc6 dxc6 b4 g5 h4 f5 d7+ Ke7 h6 c3 h5 g4 e6 g3 h7 g2 h6 f4 Ra4 f3 Be3 Qe8 d8B+ Kf8 e7+ Kf7 Qd5+ Be6 c8R Rb8 Qb7 Qf8 e8R+ Ne7 Qa6 Nf5 Bc5 Nd4 Ba5 Nb3 Rf1 Ra8 Rb8 g1Q Rb6 Qh1 Rg1 f2+ Kf1 Qg8 Qd6 Bf5 Re3 Rf8 Rf3 Ke8 Qd5 Qh4 Rg6 Qd8 Qd6 Qe6 Qe5 Bc2 Qf6 Rhg8 h8R Kd7 Qe5 Rf4 h7 Re8 Rf8 Qc4 Rf5 Rh8 Rh5 Qd5 Rh2 Qd2 Kg2 f1R Qe6+ Kc7 Rh1 Qc1 Rh2 Qa3 Rh1 Rhf8 h8R Rg8 R8h2 Rh8 Rd3 R1f3 Ra1 Rff8 Re3 R3f5 Rf3 Rf4 Qc4 Kd7 Kf1 R8f5 Qe4 Rff8 Qe6+
4qr1n/P1pP2Bb/3R1rqq/2K2Q2/3nQb2/3Qb3/Q3Qk1B/1RQ3n1 b - - 0 1 illegal: No possible last move, all moves rejected
QR1q2R1/R3Nkn1/3r4/R2nP2p/b1n1rN1b/1b1n1KN1/4NPn1/4N3 b - - 0 1 legal: proof: c4 a5 b4 g5 bxa5 b5 a4 d5 axb5 Nf6 cxd5 Ng8 h4 gxh4 e4 e5 d4 f6 d6 Ba6 d5 Bb7 Bd3 Bc8 Bb2 f5 Bd4 exd4 e5 Nc6 Bc2 Nb8 Be4 fxe4 Ke2 c5 g4 h5 a6 e3 a7 d3+ Kf3 c4 g5 h3 b6 c3 g6 c2 b7 c1N g7 h2 d7+ Kf7 d6 e2 Na3 d2 Nc2 Nf6 g8N Nd5 Ra4 Be7 Nf6 Nc6 b8R Na5 Ne4 Bh4 Ne1 Rh6 Ng3 Nd3 Qa1 Nc4 Ra5 d1B Qa4 Bb3 Qc6 Qg5 d8R Be6 Rg8 Bd7 Qa4 Bb5 d7 Rd6 Qa2 B5a4 d8N+ Ke7 Ne6 Kf7 Nf4 Qd8 Rb4 Rc8 a8N Rc7 Rb8 Rb7 Ngh3 Rb4 Rf1 h1N Nb6 Rf6 Ng1 Rd6 Nf5 Ng3 Nc8 Rc6 Nce7 Rd6 Ne3 Nf5 Qa1 Ng7 N3f5 Ncb2 Ng3 Re4 Ra7 Bc6 Qa6 Bca4 Qb7 Nc4 Qa8 Na5 Nc2 Nc4 Ra1 Be8 R1a5 Bea4 Nd4 Nde3 Nc2 e1N+ Ke2 N1g2 Ne1 Nd5+ Kf3 Qc7 N1e2 Qb6 Rbb7 Qd8 Rb8
4b2r/1N3kpR/pN2b3/N2P1rB1/nK1B2Pr/1B2BN2/1q2q3/2rB3n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 h4 b6 Qd7 b7 Qd8 b4 c5 b5 a6 b6 Be6 Qb3 Bc8 Qb4 cxb4 Ra3 Bd6 Rg3 hxg3 Nf3 Nd7 Ng1 Bb8 Bg2 Ba7 bxa7 Nb8 Bh3 Ke7 Bf1 Ke8 d4 f5 Kd2 f3 h4 f4 e4 b3 Kc3 g2 h5 f2 d6 f3 e5 b2 d7+ Kf8 d5 Qh4 d8B Kf7 h6 Nf6 h7 Be6 Bc4 f1B Na3 b1Q Be3 f2 Bb3 Rf8 Kb4 Qb2 Nf3 g1R Nc4 Rh8 Na5 Nh5 Bdg5 Nd7 b8B Bb5 Bc7 f1R Bcb6 Bf5 Bbd4 Qhf2 Rh4 Rab8 a8N Qfe2 Nb6 Ng3 Rh5 Nc5 e6+ Kg6 e7 Nh1 Rh3 Na4 Rh5 Kf7 e8B+ Kf8 Bg6 Be6 Bc2 Be8 Bd1 Rc8 Rh4 Rc1 Rh6 Rg2 Rh3 Rh2 Rh4 Rg8 h8N Rff2 Rh5 Rh4 Nf7 Rh8 Nd8 Rf1 Ndb7 Kf7 Rh7 Rf2 Nd2 Rf5 Nf3
1B1B4/1r6/3qkp2/3B1pp1/BR3R2/PKR3Pq/nbnbBR1r/4Q2n b - - 0 1 legal: proof: h4 a5 b4 axb4 c4 d5 cxd5 g5 h5 b3 a3 Qd6 Nc3 Qg6 hxg6 Ra4 Nb5 Ra7 Nc3 Ra8 e4 e6 Nge2 Nd7 Nd4 Bc5 Nf5 Bf8 Na2 bxa2 f3 Nb8 e5 Bd7 Bd3 exf5 Bf1 Ba4 Rb1 Bc2 Ra1 Be4 fxe4 Ra7 Bb2 Ra4 Bc1 Ra8 d4 Ke7 Kd2 h5 Kc3 b5 d6+ Ke6 g3 c5 d7 c4 d8B b4+ Kc2 h4 g7 c3 Ba6 f6 Rb1 a1Q Bf4 h3 Kb3 h2 Qe1 c2 Rf1 c1B Rf2 h1N Be2 Ne7 g8R Nbc6 d5+ Kd7 d6 Ke6 d7 Rb8 Rb2 Nd5 Rc2 Bc5 Rc3 Rh2 Rh8 Bd2 Rh4 Ne3 Rg4 Nc2 Rh4 Kf7 e6+ Kg6 e7 Kf7 e8B+ Ke6 e5 Rb7 B8h5 Qd1 Bhf3 Bce3 Be4 Bc1 Bg2 Qd6 Bgf3 Bed2 Rg4 Kf7 Bg2 Bb2 e6+ Kg7 e7 Kf7 e8B+ Ke6 Kc4 b3 Be4 Qf8 Bb8 Qd6 Rgf4 N6b4 Bc6 Na2 Ba4 Qe5 B8h5 Qd6 Bhf3 Ba1 Be4 b2 Bec6 b1Q Be4 Ra7 Bec6 Bb2 Kb3 Ke5 Bd5 Rb7+ Bb6 Qd1 d8R Qc1 Rh8 Qa1 Rhh4 Qd1 Qg1 Qf1 Rb4 Qh3 Bd8 Rg7 Qe1 Rb7 Be4 Ke6 Rhf4 Qh4 B4f3 Qh3 Bd5+
3rr1bQ/3n4/b4p1B/Q2Q1k2/b2q1b1r/1Qn2b2/QKBPP3/RRn1Q3 b - - 0 1 illegal: No possible last move
1Bkr1BQ1/6BK/2p2R2/BQPb3P/3rnq2/2n1q2n/1B1qRnn1/4b1B1 b - - 0 1 legal: proof: e4 b5 a4 d5 exd5 g5 axb5 f5 f4 Kd7 Bd3 Ke8 Be4 fxe4 g4 Be6 f5 Bd7 Nc3 Bc8 Nce2 h6 Nf4 gxf4 Nh3 h5 g5 Na6 Nf2 Nb8 Ng4 hxg4 Kf2 Kd7 b4 a5 d4 e5 c4 c6 h4 a4 h5 a3 f6 f3 Kg3 e3 Kh4 f2 d6 f1Q d5 a2 g6 e2 Kg5 e1N g7 e4 Kg6 e3 b6 e2 b7 g3 b5 g2 f7 g1N b6 Nh3 Qd3 Na6 b8B Nb4 b7 Ra4 Ba7 Ng2 b8B e1N Bg1 Qf4 Bb2 Nf6 g8Q Ne4 Rh2 Qa5 Qe2 Ned3 Rf1 a1Q c5 Bh6 f8B Qac1 Bfg7 Ndf2 Qb5 Qce3 Bf8 Kd8 d7 Na2 Bbg7 Rc4 Bb2 Qad2 Bfg7+ Ke7 d8B+ Kd7 d6 Rd4 Be7 Nac3 Bef8 Kd8 d7 Ba6 Qb7 Bc4 Qb3 Bd5 Qb5 Nd3 Rf3 Bg5 Rf2 Bh4 Re2 Be1 Rh1 Nhg5 Rh3 Ndf2 Rf3 Qh4 Rf6 Ngh3 Ba7 Kc7 d8B+ Kc8 Bb8 Qhf4 Ba5 Rh7 Bh6 Rd7 Bhg7 Rd8 Kh7
1nqRRQ2/KB1rB3/4R2P/pP2r2R/4b3/b2rRb2/1b2n1Qn/1k1Rr3 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 f3 Nh3 b6 Nc3 b5 axb5 h6 Nf4 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 g6 f5 d6 c5 h5 a5 g7 c4 e5 c3 d7 c2 b6 Nh6 g8Q Rh7 d3 Kc3 b5 Bb7 d4 Be4 b7 Qc8 d8R Ba3 e6 Rd7 e7 Ra6 e8R Rad6 Be3 Kb2 d5 c1B Bg2 Re6 d6 Re5 Ra2+ Kb1 Rd2 Bb2 Qe2 g3+ Ke1 Ba3 Bc5 Bcb2 Re6 Ng4 h6 Nh2 Rde8 f2+ Kd1 f1N Qf8 f3 Ke1 f4 R8e7 Nc6 b8R f2+ Kd1 f3 Re8 Ng4 Rh5 Ngh2 Bh1 g2 Rb7 Rd8 d7 g1R Be7 Rg7 Rc7 Nb8 Rc3 Ng3 Re3 f1B Qg2 Be2+ Ke1 Bd1 Kf2 Qc4 Ra6 Ne2 Re6 Rc8 d8R Qc6 Bh4 Rd7 Be7 Qa8 Rc3 Rcc7 Ke3 f2 Rcd3 f1R Rb3 Bd5+ Kd3 Bc6+ Kc4 Re1 Re3 Rb7 Bb4 Bd5+ Kc5 Rbc7+ Kb6 Rc3 Be7 Rd3 Qg1 Be4 Bf3 R7d5 Qg2 Qc6+ Ka7 Qc8 Bb4 R5d4 Be7 Rd7+ Kb6 Bg6 Bb7 Be4 Ka7 Nd4 Qf6 Bdf3 Qf8 Ne2 Rd1+
6nk/2N3N1/1pq3BP/1nRp1b2/1K2Rqr1/3NrP2/1RR2b2/Rb3qrN b - - 0 1 legal: proof: d4 a5 e4 g5 b4 f5 exf5 c5 dxc5 axb4 Bd2 g4 Bg5 Ra4 Bc1 Ra8 Qf3 g3 Kd1 Ra6 Qe2 Ra4 f3 Ra8 Qf2 gxf2 g4 h6 g5 Ra4 g6 Ra8 Bg5 hxg5 Kd2 e5 h4 d5 a4 g4 c4 g3 f6 e4 g7 Kf7 a5 b6 c6 b3 Kc3 g2 c7 e3 a6 e2 c5 e1Q+ Nd2 b2 c6 b1Q h5 Qh7 h6 Qe2 a7 Qd1 Rh4 Qf5 Bd3 f1B Re4 Be7 Nc4 Bd6 Nh3 g1R Nb2 Be7 Nf2 Qdd7 Nh1 Qf4 Bc2 Be2 Nd3 Bc5 Bb1 Bd4+ Kb4 Qf1 Bc2 Kg6 f7 Bf2 f8N+ Kf7 Ne6 Na6+ Kc3 Rb8 a8N Kg6 Kb3 Kh7 Bb1 Qdd6 Ka4 Bd7 c8R Nc7 Bc2 Nb5 c7 Qc6 Kb4 Bd1 Bb1 Bb3 Bc2 Ba2 Bb1 Nf6 g8R Rg4 Rge8 Rhg8 Ng7 Kh8 Re5 Rg1 Rg5 Bf5 Rg2 Bg3 Rb2 Bf2 Rd8 Rb7 c8R Re7 Nc7 Re5 Bc2 Bb1 Re8 Re7 Rc4 Re2 Ree4 Re3 Rc5 Nc3 Nge8 R8g4 Ng7+ Ng8 Ba4 Qf6 Be8 Qc6 Bg6 Nb5 Rca8 Qh3 R8a2 Qg2 Rbc2 Qf1 Rab2
R3qb2/4NkRP/p1nP2rR/3Kb3/1RQ1rN1N/1p2Nn2/2b2r2/3N1q1q b - - 0 1 legal: proof: e4 a5 c4 h5 b4 f5 exf5 d5 g4 hxg4 cxd5 Rh5 Nc3 Rh6 Nb1 Rh8 a4 Rh7 b5 Be6 b6 Bc8 Ba6 Nf6 Ba3 Rh4 Bb4 axb4 a5 Rh7 Bc4 Ng8 a6 Rh4 a7 Rh8 Ba6 bxa6 Ke2 g5 Ke3 c5 Ke4 e5 h4 c4 d4 c3 f4 g3 f6 c2 f5 c1Q d6 g4 f7+ Kd7 b7 b3 h5 g2 h6 g3 h7 Qd2 d5 Be7 f8N+ Ke8 d7+ Kf7 d6 Qf2 f6 Qe8 d8R Nd7 b8R Qf1 Nh3 g1R Qc2 g2 Kd5 e4 Ra4 e3 Ng6 e2 Nhf4 e1Q Nc3 Bf8 Nd1 Ne5 Nh4 Nf3 Rab4 Bf5 Qc4 Bc2 Rbc8 Rb8 a8N Rb7 Rh3 Re7 Nc7 Re4 Ra8 Ne7+ Kc5+ Re6 Ncd5 Nc6 N5e3 Rg8 Rdc8 Rg6 Kd5 Rh1 Rcb8 g1B Rd8 Rh2 Rdb8 Rf2 Rh2 Bh6 Rd8 Kf8 f7 Re4 Rh3 Kg7 f8N Kf7 Rdc8 Bh2 Rd8 Rg4 N8g6 Bf8 Ne7 Rg8 Ne6 Be5 Nf4 Rg6 Rdc8 Bfg7 Rcb8 Qh1 Rh2 Qef1 Rh3 Qh8 Rg8 Bf8 Nhg2 Rg3 Rg6 Bfg7 Rhh6 Qe8 Nh4 Bf8 Rg8 Rg6 Rg7+
n2Q2B1/2R4n/2qprpb1/4n1P1/1PB1nRR1/1rRBBr2/1b4k1/R2K2b1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 a4 c5 axb5 h6 d4 cxd4 Nh3 Bd6 Nc3 Bf8 Nf4 gxf4 Ne4 h5 g5 Qf6 Nf2 Qd8 Ng4 hxg4 h4 Ke7 c4 Ke6 e4 a5 b4 d3 h5 g3 h6 a4 c5 g2 b6 g1N b7 f3 h7 a3 c6 a2 c7 f2+ Kd2 Na6 b8R Qf6 Qc2 Nf3+ Kd1 d2 Qc3 Bc5 Be2 f1R+ Kc2 d1N Rh3 Bg1 Qd2 Nc3 Rb5 Bb7 c8R Nc7 Bc4+ Bd5 Rc5 Ra6 Rf8 Na8 Rc7 Qg6 Qd4 Nf6 Bd2 Ra3 Rg3 Rg8 h8R Rb3 Rh4 Nh7 Bc1 Qh6 Qd1 Rg6 Bf4 Ke7 e6 Rf2+ Bd2 Kd6 e7 Ke5 e8B Kd4 e5+ Be4+ Kc1 Rf1 e6 Ne5 Re3 Rf3 e7 Ra6 Rh1 Bf5 Rh4+ Ne4 Rc3 Qf6 Kc2 Bg6 Qf1 Qe6 Kd1 Qd5 Bc1 Re6 Bd3 d6 Beb5 Qc6 e8B Rg3 Qf6 Re3 Bbc4 Rf3 Rb1 a1B Qd8 Bb2 Ra1 Nd7 Bd2 Ke5 Be3 Kf5 Rh1 Kg4 Rh3 Ne5 Rh4+ Kg3 Bd7 Re7 Bde6 Kg2 Rh8 Nf8 Rf4 f6 Bg8 Re6 Rhh4 Nh7 Rhg4+
5Rr1/1q2kr2/3nnBR1/pbN5/3PqB2/1Rp2RRB/P5br/K1B3nn b - - 0 1 legal: proof: f4 d5 b4 c5 c4 e5 g3 exf4 Qb3 Qg5 bxc5 Qh6 c6 Qg5 c5 Qd8 Qc4 dxc4 Bg2 h5 Bf1 f5 Kd1 f3 Na3 f2 Nc2 f4 Ne3 f3 Ng4 hxg4 Ba3 Bd6 Bc1 Bf4 gxf4 Rh4 Rb1 Rh7 Ra1 Rh8 Kc2 g5 Kb2 a5 e4 b5 d4 g3 h4 g2 e5 g4 c7 g3 c6 b4 e6 b3 h5 Na6 e7 Nc5 h6 Nd7 f5 Ba6 c8R Nf8 f6 Ra7 c7 Ne6 h7 Nh6 Ne2 g1R Rh3 g2 Rb8 Bb5 c8R Nf5 Ng3 Nd6 Rc6 Qc8 Ne4 c3+ Kb1 b2 f7+ Kd7 f8B Qb7 e8R Rh1 Bfh6 g1N Bcf4 Rh2 Rf8 Rg8 Rg3 Ke7 Bh3 f1B h8B f2 Nc5 Bg2 Bc1 f1N Bhf4 Ng7 Rf3 Ng3 Ra6 Nh1 Rg3 Nc8 Rag6 Ne6 Bhe5 Nd6 Bg7 Qd7 Rb6 Qb7 Bh8 Bbc6 Rb3 Bb5 Rd3 Qb6 Bcd2 Rd7 Rdg3 Qb7 Na4 Rc7 Bf6+ Kd7 Nc5+ Kc6 Kc2 Rf7 Rf1 Kc7 Bc1 b1Q+ Kd1 Q1e4 Rff3 Qec6 Kc2 Qe4+ Nd3 Kd7 Kb1 Qe5 Ka1 Qee4 Bg7 Ke7 Nc5 Rf5 Bge5 Rf7 Bf6+
n1n4k/N2Bp3/r1BrpN2/1q2rN2/B3N3/nP1rB3/3B3P/RbbK1n2 b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 e4 Ng8 e5 Nf6 e6 fxe6 Qd3 Ng8 Qd2 Qc7 Qd1 Qd8 g4 h6 f4 Kf7 f5 Ke8 Ra4 h5 Rf4 gxf4 g5 Nc6 Qf3 Nb8 Qg4 hxg4 c4 Kf7 g6+ Kg7 b3 d5 c6 a5 c7 f3 c5 f2+ Ke2 d4 b6 a4 b7 d3+ Kd2 a3 c6 g3 Kd1 g2 Nf3 g1R Bf4 a2 Na3 a1N Nc2 d2 Ne3 Qd5 Bg5 Rg3 Bg2 Na6 b8N Bb7 c8B f1N c7 Nc2 Nc6 Na3 Na7 Rh5 f6+ Kh8 f7 Nf6 Bd7 Bh6 f8B Qb5 c8B Ne8 Nf5 Nac7 Be3 Nd6 Ng5 Be4 Bf3 Bb1 Bfc6 Rf3 Ne4 Bg5 Ba6 Nc8 Bh6 Bf4 Bf2 Rd3 g7+ Kh7 g8N Kh8 Be3 Rd6 Ng7 Re5 Nf5 Bg5 Ngf6 Rd3 Ke2 d1R Rg1 R1d2+ Ke1 Rd6 Bab7 R2d5 Bd2 Rd3 Kd1 Qa5 Ba4 Qb5 Nc6 Ra6 Na7 Be3 Bbc6 Na8 Bf4 Bd4 Bh6 Bb2 Be3 Bc1 Be8 Bb2 Neg3 Ba2 Nge4 Ng3 Re1 Nf1 Ke2 Bc3 Rd1 Bb2 Ra1 Bb1 Kd1 Bc1 Bed7
1nn2rBr/Bbp2n1n/N7/1qPN1NP1/3p1k2/4rn1B/nB6/NR4NK b - - 0 1 legal: proof: e4 b5 a4 e5 axb5 Nf6 d4 exd4 f4 Ng8 e5 Bd6 e6 Be5 fxe5 g5 b4 Na6 g4 Nb8 Qf3 h6 Qf4 gxf4 g5 h5 Ra3 Kf8 Rg3 Ke8 Rg4 hxg4 Kf2 Ke7 Kg2 a5 h4 f5 c4 d5 c5 d3 b6 f3+ Kh2 f2 b5 g3+ Kg2 d4 b7 f4 b6 d2 h5 d1N h6 a4 h7 f3+ Kh3 a3 Rh2 a2 Rg2 a1R Rh2 g2 Na3 Qd7 Nc2 Nc3 Rh1 Nf6 Kh2 R1a3 Bb2 Na2 Na1 Qb5 Bc4 Rf8 h8N Re3 Nf7 Nh7 Nd6 Rh8 Nh3 Rf8 Rb1 g1N Kh1 f1N Bd5 f2 Nf5+ Ke8 e7 Kd7 e8N Nd2 Bb3 f1N Bg8 Ngf3 Ng1 Nc4 e6+ Kc6 e7 Nce5 Nf6 Nf7 Nd5 Ng3+ Kg2 Kd7 e8B+ Ke6 Bd7+ Ke5 Be6 Ne4 Kh1 Ned6 Bd7 Nc6 b8B Bb7 Ba7 Nb8 Be6 Ba6 b7 Nc8 Nc3 Kf4 Bd7 Nc6 b8N Bb7 Na6 Nb8 Nd5+ Ke4 Nb6 Re8 Nd5 Ncd6 Rf1 Nc6 Nh6 Rad8 Be6 Nb8 Rb1 Nc8 Bh3 Ke5 Nc3 Kf4 Nf5 Nh6 Be6 Rh8 Bd5 Rdf8 Bg8 Nf7 Nd5+
2k4Q/2B3pP/K1n2Bpr/N3bB1p/1N6/1qbn2qP/3nN3/r2NBNr1 b - - 0 1 illegal: No possible last move
1Rqk2NR/1n6/1BrN2N1/1PqR2n1/1Pb4R/4pNp1/p1bbb1r1/K2N4 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 f4 h6 g4 Qb6 f5 Qc7 Bh3 Qd8 Qf3 h5 Qf4 gxf4 g5 Nh6 Bg4 hxg4 Bd2 Ng8 Be3 Kf7 Bc1 Ke8 Kd1 d5 h4 e5 b4 a5 c4 d3 c5 a4 c6 d4 h5 e4 c7 d2 Kc2 d1B+ Kb2 d3 g6 a3+ Ka2 f3 h6 d2 h7 g3 g7 f2 Nf3 f1B Ng1 Bc2 Nc3 d1Q Nd5 Na6 Nc3 Nh6 g8N Qh5 Nd1 Nc5 Rh4 Be2 Nf3 Nb7 Be3 Nf7 Ba7 Ng5 f7+ Kd7 f6 Bh6 f8R Qde8 Be3 Ra6 f7 Rc6 Ba7 Qd8 Rc1 Bc4+ Ka1 a2 Re8 Be2 Re5 Qf8 Re8 Qc5 Re5 Qg4 Rf5 Qh3 f8N+ Ke8 Ng6 Be6 c8N Kd8 Re5 B6c4 Rd5+ Qd7 Nd6 Qc8 Nf6 Re8 h8R Rf8 Ng8 Rf7 Nfe5 Rf2 Nf3 Rg2 Nh2 B2b3 Nf3 Ba4 Rc3 Bc2 Ra3 Nh3 Ra4 Bd2 Ra6 e3 Rb6 Na5 Rb7 Ng5 Rb8 Nb7 Bb6+
7r/p2Bb2p/NNb5/PN1Rq3/1Bpn4/Kb1NNr2/B3kP1r/r2Bq3 b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 d5 Qb3 g5 bxc5 Na6 c6 Nb8 c5 Kf7 Qb4 Ke8 Qc4 dxc4 g4 Qd3 a4 Qd5 h5 Kd8 Rh4 gxh4 g5 Qd3 g6 Ke8 g7 Nd7 Bg2 Ne5 Bf1 Ng6 hxg6 Qd7 Ra3 Qd5 Rh3 Qd6 Rh1 Qd8 Kd1 e5 Kc2 Ke7 Kb2 Kf6 d4 Kf5 a5 Kg4 c7 b5 d5 b4 d6 e3 c6 b3 d7 e4 Nc3 h3 Bd2 e2 Nb5 e1R Bb4 e3 Nf3 h2 Bd3 e2 Ka3 b2 Ne5+ Kf4 Bb1 Bc5 Nd3+ Kf3 Ba2 Bb7 c8B b1Q c7 Qf6 d8N Bc6 Nb7 Qe5 Bd7 Rf8 c8N Nh6 g8N Be7 g7 Nf5 Nf6 Nd4 g8B Qa1 Rf1 h1B Nd5 Rb1 Bge6 e1R Ne3 Ke2 Nbc5 Bhe4 Rh1 Rf3 Rh5 Rh1 Bf5 Rh2 Na6 Rf1 Nb6 Qe1 Nbc7 Ba4 Nb5 Bb3 Bg6 Bc6 Be4 Qg3 Rd5 Qc7 Nb2 Qe5 Bc2 Qd2 Nd3 Ra1 Ng4 Qc3 Ne3 Qe1 Bd1+
b1n1b1Nr/1r4p1/1q1p1N2/1Nn1nkpQ/1QRN4/1PN5/3N1P1p/1K1Rb3 b - - 0 1 illegal: No proof kernel
Q1KR1n1q/b3pRN1/4N1N1/1rp1p1Pp/1k1Nq2P/r6b/Q1b5/2NN2n1 b - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 b5 a4 f6 axb5 Nc6 b6 Nb8 e5 fxe5 b4 g6 f4 Kd7 f5 Ke8 f6 Qd7 b5 Qc6 Ba3 Qd6 Bb4 axb4 Bd3 Qd8 Bf5 gxf5 Kf2 Kd7 Ke3 Kd6 g4 Kc5 d4+ Kc4 h4 c5 d6 h5 f7 b3 d5 f4+ Ke4 b2 d7 f3 Kf5 f2 Ke6 f1Q d6 Nh6 b7 Qf2 b6 Qf3 Ne2 Qe4 Nbc3 b1B Qa4+ Kd3 Rd1+ Ke3 Qa2 Ra7 Nc1 Bg7 f8N Ra3 Ng6 Bc2 Rd2 Nf7 Nd1+ Kf3 Rd5 Bh6 Rd4 Bd2 g5 Nh6 Rb1 Ba5 Rb2 Nf5 Rd2 Na6 b8Q Ng3 b7 Bb6 Qa8 Ba7 b8N Ne2 Nc6 Ng1 Rd5 Nb8 Nd4+ Kg2 Rb3 Kf1 Rf3+ Ke1 Rf7 Kd2 Nb2 Qg8 Nd1 Ba6 d8N Bf1 d7 Qg7 Nb2 Kc3 Nd1+ Kb4 Nb7 Rf8 d8N Qh6 Nd6 Nd7 N6f5 Qh8 Ng7 Rg8 Nb7 Rb8 Nd8 Rb5 Rd6 Nf6 Rd5 Nh7 Kd7 Bg2 Kc8 Nf8 N8e6 Bh3 Rd8
b2K3b/Q1PQn3/kNQ1pr2/1p2PrB1/1q4r1/qB3pN1/p2Q4/1r3QQ1 b - - 0 1 legal: proof: g4 c5 f4 g5 fxg5 Qc7 h4 Qd6 d4 cxd4 g6 Qf6 g5 Nc6 g7 Ne5 h5 Ng6 hxg6 Qb6 Qd2 Qc7 Qd1 Qd8 b4 a6 a4 Ra7 b5 Ra8 b6 Rb8 Ra2 Ra8 Rb2 Nf6 Rb5 Ng8 a5 Qc7 Rh3 Qb8 Ra3 axb5 a6 Qc7 a7 Qd8 Ra6 bxa6 Kd2 f5 Kd3 h5 c4 d5 e4 Kd7 e5 Kc6 c5 Kb7 Qg4 a5 c6+ Ka6 c7 h4 b7 a4 b8Q f4 Be2 a3 Qh3 a2 Bd1 f3 Bd2 e6 Bb3 Rh5 Na3 Qe7 Ne2 Qb4 Qf1 h3 Nc4 h2 Ng3 h1R Nb6 Ne7 g8Q R1h4 g7 Rg4 g6 Bb7 Qf7 Rf5 g8Q Bg7 Bg5 Bh8 g7 Bc6 Qbd8 Rb8 Qgf8 Ba8 g8Q Qa3 Qd7 Rc8 Qh6 Rf8 Qfe8 R8f6 Qb8 Qb4 Qh2 Qa3 Qd2 Qb4 Kc2 d3+ Kb2 d4 Qg7 Qc3+ Ka3 Qb2+ Kb4 Qb1 Qc3 d2 Kc5 d1Q Kd6 d3 Qd4 d2 Qdg1 Nd5 Qh6 Qdc1 Qhh2 d1R Qd2 Nf4 Ke7 Ng6+ Kd8 Ne7 Ba4 Qb4 Bb3 Bb7 Nc8 Qcc5 a8Q+ Qa7 Nb6 Rb1 Nc8 Be4 Qad5 Qe3 Nb6 Qec3 Qdc5 Ba8 Qcc4 Qc1 Qcc6 Qca3 Qa7+
R6r/N1Brp1N1/1pB3Bq/1Pp1r1r1/K1n2kb1/N3Pn2/2pB2bb/1N4B1 b - - 0 1 illegal: No possible last move, all moves rejected
Bnqq2QB/4k3/qq1n3K/b1N1b3/1r1Q3n/2B1rPQ1/6bP/1rBQ3N b - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f5 axb5 fxe4 Nf3 g4 Ng1 g3 b4 Bb7 f3 Bh6 Ra3 Bf8 Re3 Bc8 Re2 Be6 Rf2 gxf2+ Ke2 Bc8 g4 h5 g5 Qd7 Ke3 Qe6 Kd4 Ba6 Kc3 Qc8 Kc2 Bb7 Ne2 Qd8 Rg1 Bc8 Rg4 hxg4 d4 a5 Kd2 c5 Ke3 e5 g6 c4 b6 a4 d6 a3 d5 g3 d7+ Ke7 b7 g2 b5 g1Q g7 a2 b6 a1Q Qd2 c3 Qa2 c2 Nd2 Ra3+ Nb3 Rh4 Ng3 Nh6 g8Q Bg7 Bb5 Nf7 Bd3 Nd6 Qb1 Qc3 Nh1 f1Q+ Nf2 Qc4 Nc5 Qh3 Qb2 Qa6 Qd4 Qg6 Nh1 Bh8 Bd2 c1R Bc3 Rb1 Bb5 Rf4 Bc6 Qge6 Kf2 Qhf5 Kg3 e3 Qd1 Rfb4 Qd4 e2 Kh4 Qfd3 Kh5 e1B Qg3 Qef5+ Kh6 e4 Qg8 e3 Qg3 Qc7 d8B+ Kf8 Bf6 e2 Bg5 Be5 Bc1 Ke7 Qg8 Qdb5 Qg3 Qd8 Qd1 Nd7 b8Q Qc2 b7 Qbb6 Qa8 Nb8 Qa7 Bh3 Qa8 Nd7 b8B Bg2 Qa7 Qf5 Ba8 Qg4 Bc7 Qgc4 Bb8 Qac8 Qaa4 Q4a6 Ba7 Nb8 Qd4 Qbb7 Qad1 Rab3 Bb6 Qbc6 Ba5 Qcb6 B3b2 Re3 Ba1 Ra4 B5c3 Rab4 Bab2 Bd2 Ba1 e1N Bab2 Nb5+ d6+ Kf7 Ne6 Bf6 d7 Rb3 Nf2 Bf1 Qde5 Qg8 d8Q Nd6 Bd4 Ba5 Qgg5 Rb4 Nh1 Ng2 Bbc3 Nh4 Qgg3 Bg2 Nc5 Bh8 Qdg5 Qgd8 Qef4+ Ke8 Qg8+ Ke7 Be5 Bf6 Qfd4 Bg5+ Kh7 Bf4 Bh8 Be5 Kh6
3Qq3/3R3K/b1Q1qb1N/4P2r/4NNP1/qkbqN1n1/1rr2RQ1/3Q1nr1 b - - 0 1 legal: proof: c4 e5 f4 exf4 g3 g5 b3 h5 Bg2 d5 cxd5 h4 Bb2 h3 a4 hxg2 Be5 b5 axb5 f3 Bf4 gxf4 Qc1 f2+ Kd1 Qh4 Qc2 Qf6 Kc1 Qd6 Qd1 Qd8 Kc2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 h4 f1Q d6 c5 d5 a5 g4 f3 b6 c4 b7 f2 h5 c3 d7 c2 Kf5 c1Q e4 a4 h6 a3 e5 a2 h7 Qa3 d6 Qc4 Nh3 f1R+ Nf2 g1R Nc3 Be7 Ne4 Nc6 Rh2 Nf6 b8Q+ Bb7 Qc8 Ba6 Rb1 Qe8 d8Q a1B d7 Na5 Qc6 Rc8 Rb2 Rb8 Rd2 Bc3 Kg5 Rc8 Kh6 Nh5 Rg2 f5 Rd5 Rf8 h8N f4 Ng6 f3 Nf4 Ng3 Kh7 Rf5 Rh2 Rc7 Qda8 Re1 d8N Bf6+ Nf7 Re2 Rd7 Rb2 Nh6 Qce6 Qd8 Nc4 Rg2 Qa2 Rh2 Ka3 b4 Ne3 b5 Nef1 b6 Rh5 b7 Qab3 b8Q Qb4 N2d3 f2 Ne1 Rc8 Nc2+ Kb3 Qba8 Qa3 Qdc7 Ne3 Q7d6 f1Q Rf2 Qd3 Qdc7 Nef1 Qd8 Rb8 Ne3+ Rc2 Nfg2 Ka2 Nf4 Rbb2 Qd6 Kb3 Qac6 Qdc4 Q6d2 Qd3 Q2e2 Rhh1 Qf3 Rh5 Qg2
q4q2/r3r1bb/3PBQ1k/3bRr2/R2n1P2/4B3/2rq1QQn/BqQ2BK1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 g4 Nf3 h6 Na3 h5 Nc4 Qd7 Nce5 gxf3 g4 Qd6 g5 Qd8 Ng4 hxg4 Kf2 Kf7 h4 Kg6 d4 e5 b4 c5 d6 a5 b6 g3+ Kg1 c4 d5 c3 d7 f2+ Kg2 c2 b7 e3 b5 a4 d6 a3 b6 e4 Qe1 e2 Bd2 c1R Qd1 e1Q Rb1 a2 Qb3 a1Q Be3 Nc6 b8Q Nd4 b7 Bg7 Qa7 Qd2 b8Q Bb7 Qc7 Qf8 d8Q Rc2 Re1 Bd5 h5+ Kh7 g6+ Kh6 Qdc8 Nf6 Qf7 Ng4 Qb2 Nh2 Qc6 Rh7 Qc1 Rc8 Qab6 Qa8 Qcb7 R8c5 Re2 Bh8 g7 Rb5 g8B Bg7 Qfe7 Ra5 Be6 Ra7 Qf7 Rh8 Kh3 g2 Qc5 g1Q Qbb2 Kh7 h6 Qg6 Re1 Qf5+ Kg2 Rg8 Bd3 f1B+ Kg1 Bh3 Bf1 Bg4 Bf2 e3 Qcb6 e2 Be3 Bh5 Qc5 Bg6 Qbb7 Bb3 Qg2 Bd5 Qb6 Ng4 Rh5 Nh2 Rg5 Qfd3 Re5 Qb5 Rd1 Qb1 Qbb2 e1R Qf2 Qe2 Rd3 Bf5 Ra3 Qd2 Ra4 Re2 Qd7 Kg6 h7 Kh6 h8B Bh7 Qdb7 Qf6 Qf7 Rf8 Qbb7 Qfd8 Qg8 Rf5 Qbf7 Bf8 Bf6 Qe8 Qgg2 Bg7 Bd8 Qf8 Ba5 Rcc7 Bc3 Re7 Ba1 Qe1 Bb2 Rc2 Ba1 Qd2 Qf6+
1rR5/pqQR1N2/N1nPR1nq/nQ1r1k2/r3b3/b7/1RPb2N1/1qN3K1 b - - 0 1 legal: proof: e4 d5 h4 c5 b4 b5 a4 g5 Bd3 f5 exf5 gxh4 Be4 dxe4 Ba3 Nh6 axb5 Kd7 b6 Ke8 b5 Ng8 Bb4 cxb4 Kf1 Kf7 g4 Kf6 f4 e5 d4 h5 d5 e3 b7 e4 b6 h3 Nd2 h4 Ne2 h2 Nc1 b3 Rb1 b2 Nc4 h3 Qd3 Ba3 d6 Nc6 b8Q Rh4 b7 Qd7 Qc7 Na5 b8N Ne7 Na6 e2+ Kf2 e1N Ne3 Nec6 Qb5 Qe7 Ng2 Nf3 Re1 h1Q Re2 h2 g5+ Kg7 g6 Kf6 g7 Rb8 g8R Nfe5 Rd8 Bb7 Rd7 Ng6 Re1 Rh3 Re2 Rd3 Re3 Rd5 Re2 Kf7 f6 Ke6 f7 Kf5 f8N Qf6 Nh7 e3+ Kg3 Qh8 Ng5 Qh6 Nf7 Ba8 Re1 e2 Kf2 Bb7 Ra1 b1R Ra2 Rb4 Rb2 Rc4 Qd8 Ra4 Qc7 Ke6 f5+ Kf6 Rg1 e1B+ Kf1 Bc3 Kf2 Ba8 Re1 Bd2 Re4 Qd1 Re8 h1Q Re6+ Kg7 f6+ Kh7 Nd3 Qb1 Nc1 Bb7 Nh4 Qf3+ Kg1 Qb3 Ng2 Ba8 Qc4 Qb7 Qc5 Nf4 Qb5 Kg6 Ng5 Kf5 f7 Ng6 f8R+ Kg4 Rfd8 Kf5 Nf7 Rc5 Kf2 Nd4 Rg8 Qb6 Rb4 Be4 Rh8 Qb7 Rc8 Ndc6 Kg1 Rd5 Rb2
R1b2rbR/q4pb1/1nPk4/4b1R1/n1R2P2/Nr3b1b/K2QbQ1Q/3QN3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 b5 a4 h5 gxh5 a5 Bg2 e6 Bd5 exd5 Ba3 d3 axb5 d4 b6 Na6 b5 Nb8 Bb4 axb4 Kd2 Ke7 Kc1 d5 Kb2 g5 c4 b3 h4 d2 e4 g4 f4 d3 h6 d4 h7 g3 e5 g2 e6 Na6 c5 Nf6 c6 Rb8 b7 Nd5 b6 Qc7 h5 Bg7 h6 Rf8 h8R Nc5 h7 Kd6 Ne2 g1B e7 Na4+ Ka3 b2 e8R Bf2 Re5 Bh4 Ra2 Bhf6 Rg5 Be5 Nc1 Bh3 Kb3 Bc8 Na3 b1B Re1 Qd7 Re4 Qe7 Qc2 d1B Ra1 d2 Nd3 Bf3 Qd1 Bc2+ Ka2 Bfg4 Rf5 Bh3 Rg5 Ra8 b8Q+ Qc7 b7 Ndb6 Qe1 d1B Qd2 Bf3 Qa7 Rb8 Qd1 Be2 Qa5 Qe7 Qad2 Qd7 Ne1 d3 Rc4 Bf3 Qf2 d2 Nd3 Ra8 b8Q+ Qc7 Qde1 d1B Qed2 Bde2 Qa7 Rb8 Qg1 Nd7 Qaf2 Qa7 Qgd1 Rb7 Rg8 Rb8 h8Q Rb3 Qh5 Ndb6 Rh8 Bhg4 Qhh1 Bh3 Qhh2 Nd5 Nc1 Bh7 Nd3 Bg8 Rb1 Rc3 Rb8 Rb3 Ra8 Ndb6 Ne1+
1K2nbQk/Q1Bq1r2/b4bP1/3B2n1/1nQ2N1B/rp1q3q/2N2BQP/4b3 b - - 0 1 illegal: No possible last move, all moves rejected
6B1/1rqr4/nn1NNp1Q/1Qn2Q2/N1Q2Pb1/1b1N2P1/1B3k1K/nn1n1b2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e3 b5 axb5 d3 Kd2 d5 Na3 d4 Nb1 g6 Ke1 d2+ Ke2 Bh6 Kd3 Bg7 Kc4 d3 Kb4 Bd4 exd4 Bb7 Kc3 Bc8 b4 g5 f4 g4 Kc4 Qb6 Kd5 Nc6 Ke4 Bd7 Ke3 Nb8 Kf2 Bc8 Ra6 Qc5 Re6 Qd5 Re3 Qd8 Rf3 gxf3 g3 h5 Ne2 h4 Rg1 h3 Rg2 hxg2 h3 Rh5 h4 Rh8 Kg1 Kd7 c4 Ke6 d5+ Kf5 d6 Kg4 b6 e5 h5 a5 c5 a4 h6 f2+ Kh2 Kf3 d7 g1N b5 a3 b7 f6 c6 a2 b6 a1N h7 e4 c7 e3 Kh1 Ra7 Qe1 d1B Qb4 d2 Kh2 Bb3 Qc4 d1N Bb2 Na6 b8Q Ne7 b7 Nd5 Nc1 e2 Nd3 e1N Nc3 Nb6 Na4 Ne2 Qa8 Rf8 h8Q Rf7 b8Q+ Rb7 Qh6 Nec3 Bh3 f1B Be6 Re7 Bg8 Nb1 Qaa7 Rg7 Qaa8 Qe7 d8N Bg4 c8N Qc7 Ne6 Rd7 Nd6 Ke2 Qe8 Kf3 Qac8 Ke3 Nb4 Kf2 Qeh5 Nd3 Qhb5 Ndc5 Nd3+ Ke3 Qe8 Kf3 Qeg6 Ke3 Qf5 Kf3 Ne1+ Kf2 Nd3+
Rb1R2R1/7Q/pN1bn1q1/2N2PN1/3k2n1/1r4P1/r4RrN/1n1bKnbQ b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 g5 e4 f5 b3 h4 g3 h3 Bg2 Qd6 Bb2 Qd7 Be5 Qd8 a4 fxe4 f5 hxg2 Bf4 b5 axb5 gxf4 h4 Kf7 d4 Kf6 b6 e5 d6 c5 d5 f3 b4 e3 b7 c4 h5 e4 h6 Ke5 d7 c3 b5 e2 h7 c2 b6 c1B d6 Nc6 b8Q Qf6 d8N Bd7 b7 Qg6 Nh3 g1B Rh2 Bf4 Qc1 Nd4 Qcc8 Nf6 Ra2 Ng4 Rf2 Ne6 Nf7+ Kd4 Qe8 Ba4 d7 Bd1 d8R+ B8d6 Qc7 Be5 b8N a6 Nd7 Rb8 Nh6 Rb3 Rb2 Bf4 Qc6 Bb8 Qf7 Bfd6 Na3 Re8 Kd2 e1N h8R Nc2 Nc4 Na3 Ng5 e3+ Ke1 e2 Qh7 Nb1 Ncb6 Re7 Nc5 Rb7 Rg2 Ra3 Rhg8 Ra2 Nd5 Rb6 Rf2 Rb3 Nb6 Na3 Kd2 e1R Rc2 Re5 Qcb7 Rd5 Ke1 Nb1 Rb2 Ke5 Rbc2 Rd2 Qc6 Kd4 Rc3 Ne5 Ng4 Rdc2 Nh2 Ng4 Re3 Rd2 Rf1 Rg2 Rf2 Nc7 Re7 Ne6 Ra7 Ra5 Rb2 Ra2 Ra8 f2+ Kf1 Bc2 Ke2 f1N+ Ke1 Bd1 Qcb7 Rf2 Qh1 Rg2 Rf2
2K2n2/4P1kb/Qb1Np1R1/1NQN1Q1q/rPn4Q/3b3r/qN1pn3/r2R4 b - - 0 1 legal: proof: e4 h5 a4 b5 axb5 c5 g4 e6 gxh5 c4 d4 c3 Bd2 cxd2+ Ke2 Ke7 e5 Ke8 d5 Ke7 Bh3 exd5 e6 Kf6 e7 d4 Be6 fxe6 Kf1 Kf7 Kg2 d5 Kg3 a5 Kf4 g5+ Ke5 g4 c4 d3 b4 a4 f4 a3 h4 d4 f5 g3 b6 a2 h6 g2 b7 Qe8 Kd6 Qb5 Kc7 Nf6 h7 Qa4 c5 Qe8 h5 Ng8 h6 Kf6 c6 Ra4 Na3 Qh5 Nh3 g1N Nf2 Nf3 Qc2 d1B Rg1 d2 Qc5 d3 Nb5 Nd7 b8N Bg7 Na6 Bc2 Nd1 Nfe5 Nb2 Nc4 Rad1 a1R Rg6+ Kf7 f6 Nf8 Kb8 Qh2+ Nac7 Ba6 Qg5 Qf2 Nd5 Qg2 c7 Qf2 Rf1 d1Q c8N Qh5 Rd1 d2 Qe5 Qe3 Qd6 Qa3 Qc5 Qa2 Rg3 Qg4 Ncd6+ Kg6 f7 Nf6 Kc7 Nh5 Kb8 Nf4 Rg2 Rg8 h8Q Bd4 h7 Ne2 Qe5 Rg7 h8Q Rh7 Qf5+ Kh6 Qf1 Qh5 Qhf6+ Bg6 Qh4 Rh8 Kc7 Bh7 Rg3 Rg8 Rg2 Rg3 Kb8 Rh3 Rg7 Ng6 f8Q Be3 Q8f5 Nf8 Qc8 Bb6 Qc5 Bb7 Rg2 Bc6 Kc8 Be8 Rg7 Beg6 Qf5f2 Bd3 Qf5 Bg8 Rg6+ Kh7 Rf6+ Kg7 Rg6+ Kh8 Nf6 Na5 Rh6+ Kg7 Nd7 Nc3 Na3 Bc4 Nf6 Bh7 Nd5 Bb5 Q1d3 Ne2 Qdc4 Be8 Qa6 Bb5 Rf6 Bd3 Nab5 Nc4 Rg6+
1Rn2N2/2rR4/2k1Np1K/Q1b1Pq2/2br3P/Q1rQ4/rp2RR1q/Q4n1r b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 axb4 c4 g5 Bh3 Rh7 Bb2 Rh8 Bd4 Qe7 Be3 Qd8 Bf4 gxf4 g5 d5 Bg4 hxg4 cxd5 Bf5 Na3 Bd7 Nb1 Bc8 Kf2 Kd7 a4 b5 h4 c5 e4 f6 d4 g3+ Kf3 b3 Kg4 b2 a5 f3 d6 f2 g6 f1R e6+ Kc6 d7 g2 d5+ Kc7 a6 c4 d6+ Kc6 a7 b4 g7 c3 e7 b3 e8R c2 Nd2 c1R Rh2 b1R Ngf3 b2 Nb3 Rh7 Nc5 Rg1 Ne6 Nh6+ Kh5 Rc3 g8R Qa5+ Nfg5 Ba6 d8Q Qf5 d7 Bc4 Qa5 Bc5 d8Q Rc7 Q8d3 Rh1 Nf8 g1Q Rf2 Qh2 e5 Ng4 Re7 Rbc1 Rd7 Ne3 Kh6 Nf1 Nge6 R1c2 Ra4 Rd2 Qa1 Rd1 Rb4 Rd2 Rgg2 Rd1 Re7 Nd7 Rb8 Nb6 Rd7 Nc8 Re2 Rd2 Rgf2 Rd1 Qg3 Rd5 Qd3 Rd4 Rb3 Rb8 a8Q+ Rbb7 Q8a7 Rb4 Q1a3 Ra4 Qa1 Ra2 Rb8 Nd6 Qa3 Nc8 Q7a5
1n1kb3/7Q/Nr2q2r/1q1R4/N2Q1b2/2b1Np1R/P2pP2N/rR2bKnR b - - 0 1 illegal: No possible last move, all moves rejected
2k2B2/1B1q2Q1/K3Bbrr/2BQN1n1/1q1pn2N/pn1P2QP/3n4/Q1b1q3 b - - 0 1 legal: proof: g4 b5 a4 e5 axb5 g5 c4 h5 b4 d6 f4 exf4 h3 Be6 c5 Bb3 b6 Nd7 b5 Nb8 Ra4 Bd5 Rh2 Bb7 Rg2 Ba6 c6 Bb7 cxb7 f3 Rf4 gxf4 g5 Qe7 Rg3 Qd8 Rg4 hxg4 e4 Kd7 d3 c5 Kd2 f5 Kc3 a5 Kc4 a4 g6 f2 e5 a3 g7 g3 Qc2 f3 Qc3 g2 Bd2 d5+ Kb3 d4 Kc4 f4 Qa1 Rh6 Bb4 Nc6 b8B Nf6 g8Q Ra6 b7 Ne4 b6 Na5+ Kb5 c4 B8d6 c3 b8Q c2 b7 c1B Bdc5 Be7 Qa7 Nb3 Nd2 Rag6 Nc4 Bf6 b8Q+ Qc7 Be2 f1Q Ka6 f2 Nf3 g1N Nh4 Qe1 Bf3 f1N Qab7 Nfd2 Qbd5+ Nd6 Bg2 f3 Bh1 f2 Qg7+ Be7 Be4 f1Q Qbg8 Qd8 e6+ Kc8 Ne5 Bf6 e7 Ngf3 e8B Ng5 Bf7 Qf8 Bg2 Qf5 Be4 Qd7 Be6 Qd8 Bh1 N6e4 Bf8 Qc7 Bbc5 Qb8 Q8f7 Be7 Qf2 Bf6 Qg3 Qb4 Qc4 Nc3 Bc6 Nce4 Qd5 Qh1 Ba8 Qe1 Bb7+
2Bb2Qb/2Rn4/Q1prqBB1/p2P1Q2/2P4r/1r1RQ3/2q1kBp1/K2b1n2 b - - 0 1 legal: proof: e4 b5 a4 e5 axb5 g5 f4 d5 fxe5 dxe4 g4 Na6 Nc3 Nb8 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Be6 Nf2 Bc8 Ng4 hxg4 h4 Ke7 b4 Ke6 d4 Kf5 Kd2 a5 Kc3 c6 Kb2 g3 c4 f3 h5 Kg4 d5 f5 h6 f4 e6 e3 b6 e2 g6 e1B b5 Qd6 g7 Ne7 g8Q+ Bg7+ Qd4 f2 h7 Kf3 b7 Nd7 b8Q Nf5 b6 Ne3 e7 Qe6 Qbe5 Rb8 Bh3 f1Q e8B g2 b7 Ke2 Ra3 f3 Ka1 Qf2 Qf5 Nf1 Bg6 Bc3+ Bb2 Bf6 Qb6 Bd8 Qa6 Qh4 Qe8 f2 Qe7 Bf6 Bd4 Qhe4 Qc5 Qc2 Rd3 Ng3 Rb1 f1R Qa3 Rh1 Rf1 Re8 h8B Rh2 Rff3 Nf1 Qb3 Be5 Bf6 Rg8 Bg4 Rh4 Qc3 Rgh8 Bf2 R8h6 Qd4 Ra8 b8Q Ra7 Bg5 Bh8 Bf6 Rb7 Qc5 Rb4 Qg3 Rb8 Qf8 Rb5 Qg8 Rb3 Be1 Nb6 Qh5 Qe7 Bb2 Na4 Be4 Rd6 Bg6 Nc5 Bf2 Bf5 Bh3 Bg4 Rf7 Bf3 Bd7 Qe6 Bc8 Bg4 Rb7 Nd7 Qf5 Bh5 Bf6 Bf3 Rc3 Kd2 Rc7 Bd1 Rd3+ Ke2 Qe3+
2kr4/3p3b/4p2K/P1BQ2p1/3rQQR1/r2Q2qn/P2nbqR1/2RR2bB b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 b4 cxd4 bxa5 g5 f4 Ra7 f6 Ra8 g4 h6 f5 Ra6 Nh3 Ra8 Nf4 Ra6 Nd2 Ra8 Ne4 gxf4 g5 Nc6 g6 Nb8 Ng5 hxg5 Ke2 b5 Kf3 d3 Kg4 f3 c4 d2 h4 b4 c5 b3 g7 f2 h5 b2 c6 b1Q h6 Qb3 Kh5 Qg3 c7 Ba6 c8R Bd3 h7 Nc6 Rg1 Nh6 g8Q Ng4 Qd5 e6 Ba3 Nd4 Rg2 Nb3 Rcc1 Qb6 f7+ Kd8 f6 Bc5 f8Q+ Kc7 f7 Rd8 Be2 f1B Bf3 Nf2 Kh6 Bfe2 Qe1 d1R Qfd6+ Kc8 f8Q Bc2 Qff4 Nh3 Bb4 Bf2 Bc5 Bg1 Be4 Rhf8 h8R Rd4 Rd1 Nd2 Rac1 Rf7 Bf3 Bh7 Rf8 Bc4 Qee4 Be2 Rh8 Qh2 Rg4 Qg3 Bh1 Rff8 Qff3 Qb2 Qfd3 Rf3 Rf8 Re3 Rf2 Qc2 Qdf4 Qb2 Qb1 Ra3 Rg2 Qc2 Qg6 Qf5 Qd3 Qf7 Qge4 Qf5 Qfe3 Qff2 Q3f4
1K1n2Q1/1B5p/3kN2r/4BprB/pn3PBQ/4n2P/3NrQ1r/1b1Qr2q b - - 1 2 legal: proof: b4 c5 g4 b6 a4 b5 axb5 cxb4 g5 f5 Ra5 d5 Ra6 e6 Ra3 Be7 Ra1 Bf6 gxf6 Qe7 Na3 Qd7 Nb1 Qd8 d4 Qa5 c4 Qa6 c5 Qa5 h3 Qd8 Ra3 Kf7 Rc3 Ke8 Rc4 dxc4 d5 e5 Rh2 Kf7 Rg2 Kf8 Rg4 Ke8 Rd4 exd4 Kd2 Kd7 e4 g5 f4 a5 f7 g4 f8Q c3+ Kd3 a4 Kc4 g3 e5 g2 b6 b3 Kb5 c2 b7 d3 d6 b2 Ne2 g1R Nd2 b1R+ Bb2 c1R Nd4 Ne7 Be2 Nec6 Ne6 Rc2 Qg8 Ra6 Bg4 Nb4 Ba1 N8c6 b8Q Qe8 Qa7+ Bb7 Qb6 Nd8 c6+ Kc8 d7+ Kb8 Ne4 Rh2 Qf2 d2 Bc3 Ba8 c7+ Kb7 c8B+ Kb8 Nf6 Be4 Bb7 Rb2 Bd4 Bb1 Ne4 Re1 Bc3 Rb3 Bd4 Rbe3 Ba1 R3e2 Kc5 Ndc6 Kd6 Qc8 d8Q Rb6 Qgf8 Rg8 Qdh4 Rg5 Qg8 Qf8+ Kd7 Nd8 Bb2 Qc5 Bc3 Qe3 Bb2 Qf3 Bd4 Ka7 Kc7 Qh1 Bc3 Re3 Ba1 Rd6 Kc8 Kb6 Kb8 Re2 Qde1 d1N Nd2 Nc3 Qd1 Ncd5 Nd4 Kc5 e6 Ra6 e7 Rh6 e8B Kd6 Ne6 Re1 Bg7 R3e2 Beh5 Ne3 Be5+
1KN1knn1/N1RR3b/2r3Q1/pp1n1n1N/PP1Qr1p1/Q1Q5/5q1n/N2n4 b - - 0 2 legal: proof: f4 e5 c4 exf4 b3 d5 cxd5 c5 Ba3 c4 Bc1 c3 Bb2 cxb2 g3 h5 Bg2 f5 Bf1 f3 Bh3 f4 Bg4 hxg4 Qc2 f2+ Kd1 f3 Qc1 Qd6 Kc2 Qd8 Qf1 Bd6 Qd1 Bf4 gxf4 Be6 Qf1 Bd7 Qd1 Bc8 Kc3 f1N Kd4 g5 Ke5 b5 h4 a5 e4 f2 a4 g3 d4 g4 d6 g2 h5 Kd7 d5 Nd2 f5 f1N f6 Qc7 f7 Nh2 f8Q Nf6 h6 Qd8 h7 Ng8 Nh3 g1N Na3 b1N Nf4 Na6 Qc2 Ndf1 Nh5 Nbd2 Rc1 Qc7 b4 Qb6 Qf3 Kd8 d7 Qf2 Kd6 Rb8 e5 Nc7 e6 Ng3 Qg6 N3e2 Nc2 Nb3 Na1 Na8 Rc7 Nc5 Qa3 Nh3 Rd1 Rb7 Kc6 Ke7 d8N+ Nd7 d6+ Kf8 Rd5 Ng3 Rd3 Nf5 Rd5 Ndf6 d7 Nb6 Rd4 Nfd5 Rd2 Ngf6 Rd3 Rg8 h8Q Ke7 Rd1 Re8 Rd2 Ng8 Qhc3 Ra7 Rd3 Ra6 Rd2 Kf8 Rd3 Nfe3 Kd6 Bb7 Nc6 Ba8 d8Q Nd7 Qb8 Bb7 Qa7 Re7 Qad4 Bc8 Qh7 Ke8 Qh6 Nf8 Qg6+ Rf7 e7 Bf5 Qe6 Bh7 Qg6 Ng1 Rd2 Ne2 Rd1 Ng3 Rd3 Nb6 Na7 Nd1 Kc6 Nd5+ Kb7 Nf5 Kb8 Nf4 Qdf6 Re6 Rdd7 Nd5 Qfd4 Re4 Qe6 Rf6 Qa6 Kf7 e8N+ Kg6 Nd6 Rfe6 Ndc8 Rc6 Ne7+ Kf7 Nec8+ Ke8 Qab6 Rc4 Qbf6 Rc6 Qg6+
Q1b1n1Bk/2p1Q1bb/p2P4/Qn2NN2/1q5p/P1p1rNnr/4N1Q1/B3K3 b - - 0 1 legal: proof: h4 e5 f4 d5 fxe5 g5 c4 b5 e4 bxc4 exd5 Qe7 b3 Qe6 h5 Qf6 Na3 Qd8 g4 h6 b4 Kd7 Rh4 Ke7 Rb1 Ke8 Rb3 Qf6 Rg3 gxh4 g5 Qe7 g6 Qd8 Rg5 hxg5 d4 f5 h6 f4 h7 f3 e6 a6 b5 g4 e7 c3 g7 Kf7 e8N g3 d6 g2 d5 Nh6 d7 Ng4 g8Q+ Ke7 b6 Nf6 b7 Bg7 Ne2 g1N Bb2 Nc6 b8Q Nd4 Qa1 Nb5 Nd6 Qf8 Nc2 Ne8 Nf5+ Kf6 Ncd4 Qb4 d6 Kg6 Qd5 Rf8 h8N+ Kh7 d8Q Rf7 Qe7 f2+ Kd1 Rf6 Nf7 Re6 a3 Re3 Ne5 Rh3 Ndf3 Kh8 Bg2 f1B Ke1 Bd7 Qbb7 Bc8 Qaa2 Rb8 Ba1 Ra8 Nf4 Bd3 Ne2 Rb8 Qa8 Be4 Nf4 Ne2 Bh1 Ng3 Qg2 Na7 Qa5 Nb5 Ne3 Bh7 Ne2 Rb6 Nf5 Rc6 Qf1 Rc4 Bg2 Re4 Qh1 Rh2 Bh3 Re3 Qg2 Be6 Bg4 Rh3 Bh5 Bd7 Bf7 Bc8 Bg8
B1n5/1r1r2p1/p2QQ3/Q2Pnq1p/1b1B1R2/P6R/k2RpRKb/2nq1Q2 b - - 0 1 illegal: No proof kernel
6K1/1nnB4/Qpp2Q2/1BqR2BQ/2pp1rP1/Rr4B1/1P1r3Q/krbb4 b - - 0 1 illegal: No possible last move, all moves rejected
Qb4B1/3r4/r1QBnk1p/n7/b1p1Bp2/2Pr1rR1/2Q1p1RP/B1K1b1Q1 b - - 1 2 legal: proof: b4 b5 e4 d5 a4 dxe4 axb5 a5 b6 Qd3 b5 Bf5 Nc3 Qd8 Na2 Bc8 f4 g5 Nh3 e5 Be2 e3 Bc4 e4 Bf1 Qd5 Nb4 Qe5 fxe5 axb4 Nf4 gxf4 d4 Ke7 g4 c5 c3 f5 d5 f3 b7 b3 b6 c4 g5 f4 g6 e2 Kd2 b2 d6+ Ke6 d7 b1R d8Q f2 g7 h6 Rg1 Bd6 Bg2 f1R Qg5 Nc6 b8B Ra6 b7 Bd7 Ra2 Nd4 Qc2 Rh7 Bb2 Rf3 Ba1 Ne7 g8B+ Rf7 Bh1 Ba4 Rg3 Nec6 Qg6+ Ke7 e6 Na5 Bc7 Rbf1 b8Q e1B+ Kc1 Rd3 Qa8 e3 Be4 Rf3 Qg4 Kf6 e7 Rg7 e8Q Ne6 Qec6 Be5 Bd6 Rd7 Bf8 Bb8 Bd6 Rf2 Qgd1 Rf3 Rb2 Bf2 Qg1 Be1 Rb5 e2 Rbg5 Ng7 Rg2 Ne6 R5g3
r1Q2n1Q/QpBp1qp1/N5P1/p1B3nr/k1N1B2n/b1rbbB2/1P5K/2Q5 b - - 0 1 illegal: No proof kernel forced: wxLB
1b2n2K/1r1kr1Q1/B2Q1p1p/p1BB1NQ1/1Q3p2/3p1P1P/1p3q1q/1N2nbB1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 d4 exd4 b6 Bb7 b5 Ba6 Ra4 Bc8 g4 g5 Rb4 cxb4 e3 Bb7 Ne2 Bd6 Rg1 Nf6 Rg3 Bc8 Rf3 Ng8 Rf4 gxf4 Ng1 Ba6 Bd3 Bc8 Ne2 Bf8 Kd2 d5 c4 a5 b7 h6 b6 b3 g5 f6 c5 b2 f3 Bd7 h3 Qc7 e4 Qd6 g6 Be6 g7 Rh7 e5 Nc6 b8B Rh8 b7 Rh7 Be4 d3 Ng3 d4 Nf5 Nce7 c6 Bc4 c7 Ra6 c8B Nd5 e6 Qb6 e7 Ra7 Bd6 Nc7 b8Q Rb7 Bc5 Bb5 Bd5 Ba6 Ke1 d2+ Kf2 Qa7 Qb3 d1Q Qb4 Bd3 Be3 Qc2+ Ke1 Bc4 Bg1 Qh2 Kd1 Be2+ Kc2 Bf1+ Kb3 d3 Kc4 Qb6 Kd4 Qa7 Ke4 Qb6 Bd6 Qbf2 Bc5 Ra7 Bcb7+ Kd7 Ba6 Rb7 Qa7 Ne6 Qb8 Nd4 Qa7 Nc2 e8Q+ Kc7 Qea8 Ne7 g8Q Nc8 Q8b8+ Kd7 Qg5 Ne1 Qe5 Bd6 Qed4 Rg7 Qe5 Bb8 Qc7+ Ke8 Qd6 Rb5 Qb7 Rh7 Qbg7 Rb7 Ng3 Re7+ Kf5 Rb7 Kg6 Re7 Qe6 Nd6 Nf5 Kd8 Qe5 Ne8 Qe6 Rb7 Qd6+ Kc8 Qh8 Re7 Qg7 Qh1 Kh7 Qhh2 Qe5 Kd8 Kh8 Kd7 Qd6+
3b3r/1bN1P3/2bqN1q1/1rN3nk/1RQ1Q1PN/3p4/3N1r1N/NK1b1n2 b - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 g5 a4 e5 b4 b5 axb5 Nc6 Ra3 Nb8 Rf3 Ne7 fxe5 Ng8 Bf4 gxf4 e3 Qg5 Be2 Qf6 Rg3 Qd8 Bg4 hxg4 Rf3 gxf3 Kd2 f5 Kc1 Kf7 c4 Kg6 h4 a5 b6 d5 h5+ Kh6 b5 d4 e4 a4 b7 a3 c6 d3 e6 a2 b6 a1R e7 f2 e8N f1B c5 f3 c7 f2 e5 f4 c6 f3 e6 Nd7 b8N R8a7 e7 R7a3 b7 Kg5 h6 R3a2 h7 Re2 Ng7 Nb6 Qe1 Ra5 Nd7 Rb5 b8N Nd5 Nc5 Ne3 Nd2 Nh6 Nbd7 Nf7 Ncb3 Bb7 Ndc5 Qd6 c8N Kg6 c7 Ng5 Nge6 Bg7 Rh3 Bc3 Na1 Ba5 Rh4 Bc6 Rg4 Kh5 Na7 Bb7 c8Q Bd8 Rb4 Bc6 Nde4 Rd2 Kb1 Be2 Qa6 f1B Qa2 f2 Nf3 Bb7 Nh2 Bd1 Qc4 Rc2 Nd2 Bfe2 Na6 f1Q Nac5 Bef3 Qe2 Rg8 h8N Qf2 Qe1 Qfg3 Ng6 Nf1 Nh4 Rh8 Qe5 Bfc6 Qee4 Ra5 Nb5 Qg4 Nbc7 Rb5 Ndb3 Rf2 Nd2 Qf5 Qb3 Qh7 Qbc4 Qg6 g4+
1bq1Rn2/pkR3q1/2n3QN/6Rq/Pb4Rr/rqQ2R2/3P1q1R/R1Kb4 b - - 0 1 illegal: No possible last move, all moves rejected
6B1/2P1p2R/K1PQ3r/2bQ1R2/1R1p1bn1/kQR1r2R/r4r2/1b1qn1R1 b - - 0 1 illegal: No possible last move, all moves rejected
1nQ4K/4P1n1/r1n1r1Q1/N4NqN/1Q1p1b2/2n2kpB/r1QPb3/N2N3n b - - 0 1 legal: proof: f4 c5 a4 g5 b4 e5 fxe5 b6 a5 Bg7 Ra4 Bh6 axb6 Bg7 b5 Bf8 Rb4 cxb4 h4 h6 g4 Ne7 Rh2 Nf5 Rf2 Ne7 Rf4 Ng8 Bb2 Qf6 Bd4 Qe7 Bc5 Qd8 Be7 gxf4 g5 Rh7 g6 Rh8 Bg5 hxg5 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 a5 e4+ Kd4 c4 d5+ e6 b3 h5 a4 c5 f3 e5 g4 g7 f2 c6 f6 Kg6 Ke4 h6 b2 b7 f5 b6 a3 e7 a2 e8N a1N c7 d4 e6 f4 h7 f3 Ne2 Ra6 Bh3 f1N Na3 b1N Nc2 f2 Nf6+ Kf3 Nh5 Nb3 Na1 Nc5 Qc2 Ng3 Nc3 f1R Nd1 Qg5+ Kf7 Ne7 g8Q Nec6 e7 Ne6 Qgg6 Bd7 c8N Re1 Nd6 Bh6 Nf5 Rc8 h8Q Nh1 Qf8 g3 Kg8 Ng7 Kh8 Nc3 Qg8 Be8 Qc4 Re6 Qb4 Nd7 b8N Rc7 Qc5 Rca7 b7 Ra2 Qb4 R7a4 Na6 Ndb8 Nc5 Ra6 Ncb3 Bf7 Na5 Be8 Qh7 Bg6 Nfe3 Bd3 Qg6 Be2 Nf5 Qh4 Qc1 Bf4 Qc2 Nd7 b8Q Qg5 Qc7 Ndb8 Qc8
q1nb1B2/4nBR1/4nP1n/2pr4/r1P3nN/6N1/4RPr1/1B1kQbRK b - - 0 1 legal: proof: b4 b5 e4 e5 d4 f5 exf5 a5 a4 axb4 axb5 g5 h4 gxh4 dxe5 d6 Qd3 dxe5 Qd1 Qd7 Ra2 Qd4 Ra1 Qd8 g4 Kf7 c4 Kf6 b6 h5 b7 c5 Ra6+ Nc6 b8R h3 Bg2 e4 Kf1 Ke5 g5 h2 f6 b3 g6 e3 g7 Kf4 Qe2 b2 Qd1 h4 Qa4 h3 Bd5 Nce7 Bf3 Nh6 g8B Ng4 Rb3 Rh5 Bd1 Rd5 Nc3 b1R Bb2 e2+ Ke1 Be6 Rbb6 Nc8 Rb3 Be7 Ne4 Ra1 Qb4 Ra4 Nd2 Bf5 Bc1 Bd3 Ra7 Qf8 Qa5 Bd8 Rd7 Ra7 Rh7 Rg7 Ngf3 Rgg5 Rf1 h1N Rh6 h2 Rh7 Ng3 Rb1 h1N Rg1 Nf5 Rb2 Nfe7 Bf7 Ng3 Bc2 Ngf5 Bb1 Nfh6 Nh4 Rg8 Nf1+ Ke4 Ng6 Kf3 Rg7 Qe8 Bf4 Qc6 Bd6 Qa8 Kd2 e1N Ng3 Ng2 Qb4 Nc6 Bf8 Nf4 Ke1 Ne6 Re2 N6e7 Kf1 Rg5 Rg2 Rh5 Kg1 Rd5 Re1 Be2 Kh1 Bf1 Re5 Rd1 Rg1 Rd5 Ne4 Ke2 Nh4 Kd1 Ng3 Na7 Re2 Nac8 Rh7 Rg6 Rg7 Ne5 Nh5 Rg2 Ng3 Neg4 Qe1#
B4b2/k1rbN2n/Ppn2pR1/B1qrr2R/N6K/b6N/1Q4PP/R5b1 b - - 0 1 legal: proof: c4 e5 b4 d5 cxd5 a5 Bb2 axb4 Ba3 Bc5 Bc1 Bf8 f4 exf4 e3 fxe3 Bb2 Nc6 Bxg7 Nb8 Qc2 Bd6 Qxh7 Bf8 d4 Kd7 a4 c5 d6 Kc6 d5+ Kb6 a5+ Ka7 a6 c4 d7 b3 d6 c3 Bf6 b2 Qc2 b6 Bd3 e2 Kf2 Qe7 Kg3 Nc6 d8R Bd7 Ra5 Rh5 Be4 Re5 Nh3 Rc8 Kh4 e1B+ Qf2 c2 Nc3 b1R Na4 c1B Rf1 Re6 Rh5 Rc7 Rb8 Bc3 Qb2 Bd4 Bg5 Nf6 Bd2 Re5 Ba5 Bg1 Rc8 Bf5 d7 Qc5 d8N Nh7 Rd1 f6 Rb8 Ne7 Ba8 Nc6 Rf1 Ra1 Rd1 Ra3 Rf1 Bd7 Rd1 Bd2 Ra1 Rd3 Rc8 Rdd5 Rb8 Bc1 Rc8 Rb7 Rc7 Be8 Rg7 Bd7 Rg6 Rc7 Ne6 Bd2 Ng7 Bb4 Nf5 Ba3 Ne7
k2Brr2/q4B1q/PP3N2/3nNq2/pR3r2/n4b1R/p2K1P2/r1Q1N1B1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 f5 e4 fxe4 h4 gxh4 a3 Qd6 b5 Qb4 Ke2 a5 Nf3 a4 Ke1 Bg7 Ng1 Bd4 axb4 Bb6 Qf3 Ba5 Qb3 Nf6 Qd1 Ng8 Qe2 Be6 Qd3 Bg4 bxa5 b6 a6 Bf5 Qc3 Bc8 Qa5 bxa5 d4 Kd7 g4 c5 d6 h5 b6 e5 d5 c4 g5 c3 g6 a3 g7 c2 Bd2 c1R+ Ke2 h3 Bg2 e3 Bf1 e4 Bb4 a4 Bg2 h4 Bf1 a2 Nd2 h2 Ba5 h3 Bb4 Nc6 Bg2 Na7 Ba5 Rh4 Nb1 Ne7 g8Q Bb7 Nf3 Rf8 Bf1 Kc8 d7+ Kb8 d8B Rhf4 d6 Ka8 d7 Nd5 Bc3 Nb5 Nbd2 Na3 Be5 Rc8 Ke1 e2 Rb1 Rb8 Rb4 Re8 Rg1 h1Q Qg5 h2 Rg3 Qg2 Bec7 h1Q Rh3 Qg4 Qh6 Qf5 Bd6 Rg4 Bh2 Rf4 Bg1 Rf8 Qc6 Qh2 Qc1 Qh1 Be7 Rbe8 d8N Qh2 Nc6 Qh1 Rg3 Qhh7 Nce5 Bc6 Bd8 Qa7 Nb1 Bb7 Kd2 e1R Bc4 Rf1 Ne1 e3+ Kd1 e2+ Kd2 Bc6 Nc3 Qfh7 Nc2 Bb7 Ne4 e1Q+ Kd3 Bc6 Rh3 Qc3+ Ke2 Qf3+ Kd2 Qg4 Nf6 Qgf5 Qb2 Ra1 Ne1 Ne7 Qc2 Bf3 Bf7 Nd5 Qc1
1Q6/2q2P2/1bP1RR2/p3bR1b/K1knN1N1/Pnq1Bp2/2bB1p2/3n1B2 b - - 0 1 legal: proof: f4 d5 e4 e5 h4 exf4 d4 g5 b4 c5 bxc5 gxh4 c4 dxc4 d5 Bf5 d6 Bc8 g4 f5 Nc3 b5 Kd2 a5 Ke2 f3+ Kf2 f4 Nb1 Ra7 Be3 Rf7 Ke1 Rf5 Bc1 Rd5 exd5 h5 Bh3 Rh7 Bg2 Rf7 Bf1 Rf5 gxf5 Bd7 Be2 Be6 Bf1 Bc8 Kd2 Kf7 Kc2 h3 a3 h2 d7 b4 d6 c3 Kb3 h4 c6 c2 f6 Ke6 f7 f2 Bd2 Kd5 Ka4 c1B Qe1 b3 Bh3 b2 Bf5 Kc4 Bh7 Bg7 Be4 Qc7 d8B Nh6 d7 Nf5 Be3 Be5 Bf6 Na6 d8R Nd4 Rf8 Bg4 Nh3 Bh5 Rf1 h1Q Re8 Qf3 Nc3 b1B Bg5 Bd3 Rb1 Bc2+ Rb3 Qg3 Bg2 Qf3 Bd2 Qe3 Ne4 Qc3 Re6 Bb2 Qb1 Bc1 Be1 Be3 Rg6 Ne2 Rf6 Bb6 Bd2 Nd4 Ng1 h3 Re1 h2 Nf3 h1N Nh2 f3 Ng4 Ng3 Bge3 Ngf5 Re2 Ng7 Bf1 Ngf5 Bh6 Ne3 Re1+ Bd3 Rb5 Nd1 Bhf4 Nb3 Rd5 Nb4 Bfe3 Nc2 Qb2 Ncd4 Re2 Bg3 Rdf5 Be5 Re1 Qc1 Re2 Bc2 Qc3+ Kd5 Qb4 Qa1 Qf8 Qc3 Qb8 Kc4 Bg5 Bb1 Nc5 Bf4 Ree6+ Bd3 Ne4 Be5 Bh3 Bb1 Bge3 Bc2 Bf1+
B3n3/n4p1R/bB4k1/P1RNPN2/2qp1p1K/2nbP1pR/Q4b1p/1B6 b - - 0 1 legal: proof: d4 b5 b4 e5 g4 h5 h4 a5 f3 axb4 g5 c5 Nh3 cxd4 Ng1 Qe7 Ba3 Qe6 Bb2 Qg6 Bc1 Qe4 fxe4 Rh6 g6 Rh7 gxh7 g5 h8Q g4 Qh6 Ra6 Qe3 Rg6 Qf4 Rg5 hxg5 exf4 Kf2 d5 a4 b3 c4 b4 a5 g3+ Kg2 h4 c5 d3 e5 d2 c6 b2 g6 b3 g7 Be6 c7 Nc6 Rh3 Bc5 Qc2 d1N Be3 Nf6 g8B Nc3 Nf3 Bc8 Nd4 Ba6 Nf5 Kf8 c8R+ Ne8 Bh7 Na7 Bf2 Be3 Rc5 Bd4 Bg1 Bf2 Bg6 Kg8 Kf3 Kh8 Kg4 Kg8 Bg2 Kh8 Nd2 b1Q Nf1 b2 N1e3 Qf1 Bh7 b1B Qa2 Bbd3 Rb1 Qe1 Rb6 Qd1 Rh6 Qb3 Bg6+ Kg8 Rh7 Qc4 Nc2 Kf8 Nb4 Be1 Bd4 Bf2 e3 Kg8 Rc7 Kf8 Bb6 d4 Ba8 Kg8 Nd5 Kf8 Rh1 h3 Rc5 Kg8 Kh4 Kf8 Nd6 Kg8 Rh8+ Kg7 Be4 Bf1 Nf5+ Kg6 Bb1 Bd3 Rh7 Na4 Rc1 h2 Rc8 Qb5 R1c5 Qc4 Rd8 Nc7 Rdh8 Nc3 Kg4 Ne8 Rh3 Nc7 R8h7 Ne8 Kh4
1qbnN1n1/1RQ4K/N6n/2bP1rqq/1P2PB2/1n3n2/R2NBk1r/2B1r3 b - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 e5 Ra4 Ba6 Ra1 Bc8 h4 g5 f4 gxh4 b3 exf4 Ra4 a5 Ra3 a4 Ra1 axb3 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 h5 d4 f5+ Kf3 c4 e4 h3 g5 c3 g6 b2 g7 c2 Nc3 b1Q Bb5 h4 Bb2 c1N Qb3 h2 Qa4 h3 Qa5 Nb3 Bc6 Qc1 Bb5 Nc6 Qa4 Ra5 Kf2 f3 Kg3 f2 Be2 f1N+ Kf3 f4 Ra2 Ne3 Qa3 Qe8 Na4 Ng4 Nc5 Nd8 Na6 N4h6 Qa4 Qd2 Bc1 Qb5 Qa3 Qb8 Qa4 Rb5 Qa5 Be7 Kf2 f3 Kg3 f2 Nf3 Bf8 Kh4 f1N Kh5 Rh7 Rg1 h1R Kg6 h2 Rg2 Qe3 Nd2 Rg1 Rg4 h1Q Rg5 Nh2 Qb6+ Kd7 d6 Ke6 Qc7 Rf5 d5+ Ke5 d7+ Kd4 Rg4 Bc5 Rg5 Nb7 d8B Re1 Rh5 Qhf3 Bg5 Nd8 Bf4 Qh3 Rh4 Nf3 Rh5 Rf8 Re5 Rf5 Re6 Qh2 Rb6 Qh4 Rb7 Rh8 Bd6 Qef4 Be5+ Ke3 Bd6 Kf2 Be5 Nf6 g8N Qh5+ Kg7 Nfg4 Nf6 Ng8 Ne8 N4h6 Qc6 Qfh4 Bf4 Q4g5+ Qg6 Nhf7 Nac7 Qe7 Be5 Qg4 Na6 Rh2 Qg5 Qh3 Qf4 Nfh6+ Kh8 Qg5 Kh7 Qhh5 Bc7 Re5 Qf7 Rf5 Bf4 Ba7 Qg7 Bc5 Qc7
3r4/1P2bqq1/2P1RB2/kNbqBKQ1/4n3/1P2R2r/1n1nR2n/1n1b1N1B b - - 0 1 legal: proof: h4 c5 e4 g5 d4 cxd4 f4 gxh4 a4 b5 axb5 f5 exf5 e5 Ra4 exf4 Ra6 Ne7 Ra1 Ng8 Kf2 h5 Kf3 d5 g4 Kd7 c4 Kc7 c5 a5 c6 Kb6 b3 a4 g5 h3 f6 h4 g6 h2 f7 h3 g7 a3 Bc4 a2 Nd2 d3 Nf1 d2 Qc2 d1N Qc3 d4 Ke4 f3 Kf4 d3 Ng3 d2 Qf6 f2 N3e2 f1N Bd3 Qd4+ Kg5 Nc3 Nf4 d1N Qd6 Nf6 g8R Nb1 Qd5 Ka5 b6+ Bc5 f8B Ng4 b7 Nb2 Bd6 Nd7 Rg6 Qg7 Be5 Ndf6 Ng2 Nfd2 Ne3 Nfe4+ Kf4 Bf5 Nf1 Rad8 Ne2 Bc8 Rg1 h1Q Rg2 h2 Re6 Rh3 Kf5 Qf7+ Bf6 Qg1 Nd4 h1Q Nb5 Nh2 Re2 Qgg7 Bc2 Ndc4 Bf4 Ncd2 Bd1 Qf3 Qe5 Qd3 Re3 Qd5 Bf3 Bd7 Bh1 Bc8 Bg3 Bd7 Kf4 Be8 Qg5 Bd7 Rd6 Bg4 Re6 Bd1 Re2 Nbc3 Rc1 Ncb1 Rc3 a1B Rce3 Na4 Rd3 Bad4 Rc3 Nb2 Rce3 Be5+ Kf5 Bed6+ Be5 Bf8 Bf3 Bfe7 Bh1
2N2B2/2kr3n/n1r1qRq1/2RP4/NP5b/bN3bQ1/b1qPnB1r/KR6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 cxd5 exf4 Na3 g3 Bg2 f3 Nb1 fxg2 h4 Kd7 e4 f5 e5 a5 b6 g5 b7 c5 b3 g4 h5 a4 h6 f4 h7 a3 e6+ Kc7 e7 f3 e8R a2 Rh4 f2+ Ke2 f1B+ Ke3 c4 Kd4 c3 Rh1 c2 Kc3 Bc4 Kb2 Ba3+ Kc3 Qf6+ Re5 Qe6 b4 Ra6 Bb2 Nf6 Ne2 g1B Qe1 g2 Rf5 g3 Nd4 Rc6 Nb3 Na6 b8N Bf2 Nd7 g1Q Nb6 g2 Rh3 Rd8 h8B Bh4 Bg7 Nh7 Bf8 Rd7 Rf6 c1N Kc2 Qc5 Bd4 g1Q Bf2 Ne2 Nc3 Qg2 Rb1 a1R Rd3 Qg1 Nca4 Qg6 Rb2 Rb1 Qg1 Rd1 Rb1 Rf1 Qg4 Rh1 Qg2 Rh2 Qg3+ Rcd6 Rd1 Qc6 Kb1 Qc5 Ka1 Qc6 Nd4 Ba2 Rb1 Qc1 Nb3 Qc2 Qh3 Rc6 Rc3 Nb8 Rc5 Ba6 Rf4 Bd3 Rf5 Na6 Nc8 Be4 Rf6 Bf3 Qg3+
K5n1/1n1BRN2/BNP2bqr/3n2n1/3B1qq1/P2q3P/2bkN2n/bQ4R1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 h5 f4 hxg4 Kd2 e5 Ke1 b5 Be2 e4 Bf1 Ra6 Qe2 Re6 Qd1 Re5 fxe5 Bd6 Qd2 Be7 Qd1 Bf8 Kd2 Kf7 c4 g5 e6+ Kf6 c5 Ke5 e7 Kf4 e8B d5 h3 e3+ Kd3 b3 c6 g3 f6 b4 a3 g4 f7 g2 Nf3 g1N Rh2 b2 Be2 b3 Nfd2 g3 Nf3 g2 Bf1 Bg7 f8N Qd6 Nh4 Nd7 Nd2 b1N Ndf3 b2 Nd2 e2 Rh1 e1B Be2 Rh6 B8h5 Nc3 Be8 b1Q+ Qc2 Nf3 Rf1 g1N Bf7 Bf6 Ra2 Qbb8 Qb1 Nc5+ Kc2 Ke3 Be6 Nh2 Nhg6 Nb7 Kb3 d3 Nd7 d4 Kc4 Ngf3 Nb3+ d2 Rg1 d3 Nb6 Nd5 Kb5 Ng5 Bb2 d1Q Ka6 Bec3 Nh8 d2 Bd7 Qg3 Nc1 Qbf4 Bd3 Qdg4 Ka7 d1Q Ne2 Kd2 Ba6 Qd3 Ka8 Q1c2 Nf7 Bce5 Be8 Bf5 Bd7 Bh7 Bd4 Bg6 Bf2 Ba1 Bd4 Bh7 Rb2 Qg6 Rb3 Qc4 Rf3 Qcd3 Re3 Q6h5 Bb5 Qb3 Rh1 Bc2 Re7 Qg6 Ba6 Qbd3 Rg1
1N4r1/BNPN4/5rQ1/qR3Bbr/2B3qP/bq1r1n2/R1rP1kb1/3K2b1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 c4 e5 g4 exf4 Nf3 hxg4 Ng1 d5 axb5 Na6 Qc2 dxc4 Qa4 c3 Qb3 c4 Qd1 Nc5 bxc5 Bf5 Qc2 Bd7 Qd1 Bc8 e4 Kd7 h4 Ke6 b6 Ke5 c6 f5 b7 a5 b8N g5 c7 c2 Nc3 f3 Qe2 Kf4 e5 Kg3 e6 a4 e7 a3 e8B f4 Nb1 a2 Qe3 c3 Rh2 Be7 Ba3 c1B Bg2 c2 Nd7 Bb7 Nf6 Qd5 Bb4 Rh5 Nh7 Qb3 Bd6 Nh6 Nf6 Nf7 Qe5 f2+ Ke2 f1R Bh3 Bg2 Qb5 Rf3 Bb4 Ne5 Qc5 Rd3 Bd7 Rg8 Qb6 Ba3 Nf3 c1R Bc5 Rc2 Nd4 f3+ Kd1 f2 Nc6 Nf3 Be6 Bd8 Rh1 f1R+ Ke2 Be7 Nc3 Bd8 Rb1 a1Q Nb5 Qac3 Rb2 Qa5 Bc4 Rf2+ Kd1 Be7 Re1 Rf1 Nbd4 Kf2 Nb8 g3 Nfd7 g4 Ra2 Bg5 Qe6 Bh1 Qb6 g2 Qg6 g1Q Ba7 g3 Bf5 g2 Ndc6+ Kg3 Nb4 Qd4 N4a6 g1B Nac5 Qg4 Nb7 Bg2 Qe8 Rf2 Re5 Re2 Rb5 Re6 Qg6 Rf6 Nb6 Kf2 N6d7+
q1k1n1B1/Q2N3R/2n3q1/RN2q3/1P3B2/1rN1Br2/K1PnPnqr/1r1r4 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 a5 e5 g3 exf4 a6 f3 Kd2 f2 Ra4 bxa6 Ra3 a5 Ra1 a4 Ra3 g5 Bg2 f4 Bf1 Bd6 Ra1 Bb7 Qe1 Bf3 Qd1 Bg4 h3 f3 Nc3 Bf4+ gxf4 Bf5 Nb1 g4 Na3 g3 Nb1 Bg4 hxg4 Qc7 Nh3 Qb6 Ng1 Qd8 b4 h5 g5 a5 f5 d5 g6 Kd7 f6 d3 Kc3 a3 Kb3 a2 f7 a4+ Ka3 h4 f8B h3 g7 d4 Be7 d2 Bc5 g2 Bb2 h2 Qe1 d1N Bb6 d3 Bf6 d2 Bb2 Nf6 g8N Nc6 Ba7 Ne8 Bb6 Kc8 Nh3 g1Q Bc7 Qg6 Bg2 f1R Nc3 f2 Rg1 h1Q Bd5 Qhg2 Nf4 Rh2 Nf6 Qe7 Bd6 Qe5 Nd7 Ra6 Ne6 Ra5 Rc1 a1Q+ Ba2 Rd5 Rh1 Rd3 Nd4 Rf3 Bc5 Rg1 Bd6 f1N Nb5 Nf2 Bc5 d1R Be3 Rd3 Rd1 Nd2 Bc1 Nh3 Qh4 Nf2 Qd4 Re1 Qa7 Rg1 Bb2 Re1 Rb1 Rd1 Bf4 Qb8 Bc1 Qa8 Rb3 Rde3 Nb1 Qag7 N1c3 Qe5 Rb2 Rd3 Bg8 Rde3 Ka2 a3 Ka1 a2 Rb1 Rh8 Rh7 Rd3 Rb3 Rde3 Kb2 a1R Ra3 Rb1+ Ka2 Rd3 Ra5 Rde3 Re7 Rh2 Rh7 Rd3 Na4 Rdb3 Nac3 Nde4 Bce3 Nd2 Ra3 Qf1 Ra4 Qfg2 Ra5
1K6/RRn1qNq1/r1P2R1r/bQ1B4/3kNB2/2r1nn2/1Pbp1PB1/1r4r1 b - - 0 1 legal: proof: d4 b5 h4 g5 e4 gxh4 a4 a5 axb5 c5 d5 f5 exf5 a4 d6 a3 Qd4 cxd4 Nd2 a2 Rb1 a1Q c3 Qa2 Ra1 Qb1 Be2 Ra6 Bd3 Rxd6 Be2 Ra6 Bf1 Ra8 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Kf3 d5 g4 h5 b6 d3 c4 e4+ Kf4 e3 b7 e2 c5 e1N c6 h3 Be2 d4 Nc4 d2 Na5 d1R Bb5 h4 Rh2 d3 Ne2 Nh6 Ra4 Ra6 Nc4 Qe7 Ne5 Nf3 Nc3 Rg1 Nf7 Be6 Be3 d2 Bf1 Bb3 Bg2 Bc2 Rh1 h2 g5+ Kg7 g6 Kf6 g7 h3 g8B Ng4 Ra1 Rh6 Ra4 Rc1 Re1 h1R Ne4+ Kg7 Re2 h2 f6+ Kg6 Rb4 Rhg1 Rb3 h1R Rb5 Nd7 b8Q Nc5 Rb7 Qa2 Re1 Qa5 Ra7 Qc3 Qb5 R1h3 Re2 Rcf1 Re1 Qd4 Ra1 Rb1 Rb7 Bg7 Nd6 Bh8 f7 Qg7 f8R Rg3 Nf7 Rgh3 Ng3 Kf6 Ne4+ Ke6 Ra2 Kd5 Kf5 Rg3 Bf4 Kd4 Ra3 Ne6 Ra2 Rb6 Raa7 Rgh3 Nd8 Ra6 Rf6 Nc7 Bd5 Nfe5 Nf7 Rc3 Bg3 Nf3 Bd6 Rd3 Bf4 Rc3 Qb3 Rd3 Nc5 Qg8 Ne5 Nb5 Rf7 Bf6 Ne4 Rc3 Qa4+ Qb4 Ke6 Bd8+ Kd7 Qg7 Kc8 Ne3 Rf6 Ba5 Kb8 Nc7 Qb5 Qbe7 Nf7
k1b1N1nK/2qpb1r1/5P1R/1Q6/q1N1b3/1nNP1b1n/1P1B1b1B/3RR1r1 b - - 0 1 legal: proof: e4 b5 h4 f5 a4 bxa4 exf5 g5 Bc4 gxh4 Bd5 c6 Bxc6 Qb6 Bd5 Qd8 Bb3 Nf6 Bg8 Nxg8 Ke2 h5 Kd3 a5 Ke4 e5 g4 a3 c4 a2 f4 a4 f6 a3 Kf5 e4 Kg6 h3 c5 h2 d3 h4 f5 e3 g5 e2 c6 e1B c7 h3 Qf3 Bf2 Qf4 Be7 Kg7 Nc6 g6 Ne5 Qb4 Nf3 Bf4 Ng5 Ne2 Rb8 Rc1 h1B Bh2 Be4 Qb5 Rh4 Rg1 Rg4 Re1 Rg1 Nd2 Ra8 Rad1 a1N Nc4 a2 Nc3 Nb3 Kh8 a1Q g7 Qa4 Bf4 h2 Bd2 Nh6 g8N h1B Qb4 Bhf3 Qb5 Nh3 f7+ Kf8 Nf6 Ng8 Ne8 Ra6 Ra1 Rag6 Rac1 Rg7 Rcd1 Bcb7 c8R Qc7 Ra8 Bc8 Rb8 Bb4 Rb7 Ke7 f8B+ Kd8 Rb6 Be7 Rh6 Qb8 Ned6 Kc7 f6 Qb6 Ne8+ Kb8 Ncd6 Ka8 Nc4 Bd6 Be7 Qc7 Bf8 Ba3 Bd6 Bac5 Bg3 Be7 Bh2
N2n1kQ1/1q2r1n1/R5qB/3RBb1n/3pRPP1/3Kb2P/1bnB2r1/6Nq b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e3 f4 exf4 cxd4 f3 h5 Kd2 g5 Ke2 g4 Ke1 gxf3 g3 h4 Bg2 h3 Qe2 hxg2 Qd3 Rh4 Qd1 Rh8 Kd2 e5 b4 a5 c4 d5 c5 d3 h3 f2 b6 f1N+ Kc3 e4 b5 e3 b7 d2 c6 e2 c7 e1N b6 a4 Ra2 a3 Rc2 a2 Na3 a1B+ Rb2 Rh7 Kd4 Bc5+ Kc3 Ne7 Qb3 d1Q Nb5 Bf5 c8R Nbc6 b8B Be3 b7 Nc2 Be5 Kf8 b8B Ra2 Nc7 d4+ Kc4 Qh5 g4 Qg6 Na8 Ng3 Bbd6 Nh5 Bd2 Rg7 Rc7 Qb8 Ra7 Qb7 Ra6 Nd8 Rb1 Bc3 Ra1 Rb2 R1a5 Ra2 Rd5 Bb2 Nf3 Rf7 Re1 g1Q Ba3 Qh1 Ng1 Ra1 Re2 Rf1 Re1 Rf2 Bab4 Rg2 Bbd6 Bf2 Re4 Be3 Kd3 Bc8 Bc7 Nf5 Bcd6+ Re7 Ba3 Nfg7 Qa2 Bf5 Bad6 Kf7 Qb3 Rc7 Bf8 Re7 Qc4 Ne8 Bh6 Neg7 Qc8 Kg8 Qe6+ Kf8 Qg8+
1q3bR1/2B3Q1/3qkr2/qB1n3K/pNq1b2P/n5P1/1nB2rP1/1rR2R1N b - - 0 1 legal: proof: e4 g5 d4 b5 a4 bxa4 e5 c5 e6 cxd4 Qf3 g4 Qf5 g3 Qxh7 fxe6 fxg3 e5 Ra2 e4 Ra3 Bh6 Ra1 Bf8 Ke2 a5 h4 d5 b4 Kd7 c4 a3 b5 d3+ Kf2 d4 b6 a4 b7 a2 c5 d2 c6+ Ke6 c7 d1Q Be3 d3 Rh3 d2 Ba6 Nc6 b8R Nb4 Bg5 Nf6 Bd3 Bb7 Ke3 Nc2+ Kf4 e3 Qg7 e2 Rh1 e1R Nf3 Na3 Be2 Be4 Bc4+ Nd5+ Kg4 Ra6 Ra8 Qb8 Nc3 Rb6 Rc1 a1Q Bf4 Qa2 Be2 Qc4 Ng1 Rh6 Na2 Rf1 Nh3 Rf2 Re1 Rf6 Kh5 Rb1 Rf1 Kd7 Qh8 e5 Nb4 Ke6 Qg7 Bg6+ Kh6 e4 Bd3 e3 Bc2 e2 Be5 Bh7+ Kh5 Be4 Bf4 Rf3 Nf2 e1Q Nh1 Rf2+ Kg5 Qc6 Bd6 Qde2 c8B+ Qd7 Bc7 d1N Bb7 Nb2 Ba6 Qd6 Bb5 Qc4 Kh5 Qec3 Nd3 Qa5 Nb4 Qba7 Rd8 Qb8 Rc8 Be7 Rh8 Bf8 Rg8
2bq2q1/bb6/PR1PNnN1/1K1k2qb/R2P1r1B/2r4p/4R2n/1Q2rB1B b - - 0 1 legal: proof: c4 a5 f4 f5 e4 g5 b4 axb4 h4 d5 cxd5 gxh4 exf5 e5 Bb2 exf4 Ba3 Bd6 Bc1 Bf8 Ke2 Ke7 Kd3 Kd6 Kc4 h5 g4 c5 d4 b5+ Kd3 f3 a4 h3 a5 h2 a6 c4+ Ke3 c3 Kd3 c2 g5 h4 g6 f2 f6 h3 f7 b3 g7 b2 Na3 b1B Qd2 b4 Kc4 b3 Bb2 c1Q+ Nc2 Rh4 Nf3 Rf4 Bc3 b2 Ne5 Nd7 Ra4 Nh6 g8B Ng4 Na3 Bg6 Kb5 b1R+ Qb2 Bh5 Be1 Ndf6 Ng6 Be7 Rg1 h1B f8R Nh2 Rg2 Ra7 Rf7 Rc7 Qb3 Ra1 Qb1 Rc3 Rg7 Bf8 Rb7 Qe3 Rb8 Qg3 Be6 Qg5 Bd7 Be7 Bc6 Qg8 Rb6 Bd8 Bc4 f1Q Re2 Bc7 Bf2 Bb8 Bh4 Ba7 Bd3 Qc1 Bc4 Qf5 Bd3 Qd7 Bc4 Qdd8 Bb7+ Kd7 d6 Qe3 Bd3 Ke6 Bbe4 Qg1 Bg2+ Qe3 Bf1 Bhb7 Be4 Qd2 Bh1+ Qe3 Qc2 Re1 Qb1 Nd5 Nc4 Nf6 Nce5 Qg1 Nf3+ Kd5 Ng5+ Qg2 Re4 Qg3 Ne6 Qg5 Re2+
NnBQ2K1/b5RP/3kP2q/2nP4/RbB1prr1/5b1r/5Nr1/1NBq3n b - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 b5 axb5 h5 Ra3 hxg4 Ra6 Kd7 Ra1 Ke8 f4 e5 fxe5 f6 e6 f5 e4 Nd7 e5 Nb8 Qc2 Bd7 Qd3 Bc8 Qe4 fxe4 Kf2 Ke7 Ke3 c5 Kf4 g5+ Kf5 a5 Kg6 a4 d4 a3 b4 g3 h4 c3 h5 c2 b6 c4 b5 g2 h6 a2 b7 g4 b6 c3 Nf3 g1R Bh3 g3 Ng5 g2 Nf3 Nf6 Bg4 Nh5 Ne1 Ng3 Nd3 Ra6 Rh3 Nh1 Rg3 Ra3 Bf5 Rg8+ Kh7 Rg4 Nf2 Rf1 Kh8 g1R h7 Rg2 d5 Qd6 Nh3 Rff4 Nf2 Rh4 Rg6 Rhg4 Kg8 Bd7 Rg5 Bb5 Rg6 Be2 Rg5 Bf3 Rg7+ Ke8 e7 Qh6 Bc8 Rb3 Bb2 c1B Ba3 Be3 Bc1 Na6 b8N c2 b7 Ba7 Nd7 Nb8 Nb6 Rd3 Ba3 c1N Na8 Nb3 Bb2 Nc5 Bc1 Nc6 b8Q Rb3 Ba6+ Kd7 Bc4 Re3 Qb6 Nb8 Qa5 Rb3 e6+ Kd6 e8B Ra3 Bd7 Rc3 Nd2 Re3 Qd8 Rc3 Rb1 a1Q Rb4 Qa4 Nb1 Qd1 Rg6 Be2 Rg5 Rh3 Ra4 Bf3 Rg6 Bg7 Rg5 Bc3 Rg7 Bb4 Bc8+
n1n3bN/6qP/R7/q2P1K2/RNB2p2/2BRrrkn/Qr4Pr/4nbN1 b - - 0 1 legal: proof: c4 e5 b4 d5 b5 dxc4 b6 axb6 Nf3 b5 Ng1 b4 f4 exf4 h4 g5 hxg5 h5 Nh3 Ke7 Ng1 Bh6 gxh6 Ke8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 b5 a4 f5+ Kf3 h4 e4 c3 d5 Ke5 a5 h3 a6 b3 a7 b2 Rh2 b4 Ba6 b3 Nd2 b1Q Ra3 b2 Rb3 c4 Rb7 c2 Rc7 c3 Qe1 Qa1 Rd7 b1R Qg3 Rb2 Rd6 Be6 Bc8 Qda5 Rd7 Ne7 Qg8 Na6 Nb3 Nc7 Bd2 c1N Nc5 c2 Rd6 Nd3 Na6 c1R Nb4 Re1 Ba6 Rf8 a8R Nc8 Bc4 Rf6 Qg7 Bg8 Rda6 Re2 Rh1 h2 Qd7 Rh7 Qa4 Rf8 R8a7 Na8 Qa2 Rh8 Nh3 Rh7 Rd1 h1N Ng1 Nhf2 Be1 Nh3 Rd2 Kd4 e5 Rh8 e6 Ke5 e7 Re4 Re2 Rf7 Re3 Rf6 Bd2 Ne1+ Ke2 Rf8 e8N Rf7 Nd6 f3+ Kf1 Kf4 Rd3+ Kg3 Bc3 Rf6 Nf7 Rh7 Nh8 Re3 Re7 f2 Re4 f4 Red4 Rb6 Re4 Rb3 Red4 Rf3 Ke2 f1B+ Kd2 Re7 h7 Ree3 Re4 Rf6 Re7 Rh6 Rea7 Qc7 Ra4 Qg7 R7a6 Rh4 Bf6 Rb2+ Kc3 Ng5 Kd4 Rh2 Be5 Nh3 Bf6 Re7 Be5 Re6 Ke4 Re8 Kf5 Re6 Bc3 Ree3 Qb3 Qa3 Na2 Qc5 Nb4 Qa5 Qa2
2b2n2/4rP1p/3q2Rr/R1nN3P/1n2nbQ1/B2N2P1/2B2NR1/Kbq1b1k1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 f5 a3 c5 bxc5 b5 Qf3 b4 axb4 e3 b5 g6 Ra4 g5 Re4 fxe4 f5 Be6 Qg4 Bc8 Qf4 gxf4 Kd1 Kd7 h4 e5 d4 a5 c4 e2+ Kc2 e1Q Kb2 a4 b6 Kc6 g3 a3+ Ka1 a2 b7 f3 f6 e3 f7 e2 h5 f2 Rh2 e4 Bh6 e3 Nh3 Nd7 b8R Ra6 Rb5 Bd6 Bf8 Ngf6 Ra5 Ne4 Bg2 f1B Nf2 Qd2 Nc3 e1B Nd5 e2 Nf4 Qb6 N4d3 Bf4 Bh3 Qc7 Bf5 Qd6 Be7 Nf8 d5+ Kb7 c6+ Kb6 c7 Qd1+ Kb2 a1N Bg6 Nb3 c5+ Kb7 c6+ Kb6 Bf5 Nbc5 Bg6 Qc2+ Ka1 Rg8 Bf5 Rg5 Bg6 Re5 Bf5 Bh3 Bg6 Bcf5 c8Q Qd2 c7 Qe3 Bf6 Re7 Bb2 Bhg4 Ba3 Bh3 Ra4 Kb5 Ra5+ Kc4 Qd7 Kd4 c8N Qd2 Qa4+ Ke3 Nb6 Bc8 Qc4 Bhf5 Qb4 Qd7 d6 Qc1+ Ka2 Qc6 d7 Qd6 d8R Kf3 Nd5 Rc6 Rh1 Kg2 Rh2+ Kg1 Qd4 Bb4 Rd7 e1N Rda7 Nc2 R7a6 Be1 Qa4 Qe3 Kb1 Nb4 Ka1 Bg4 Bf5 Bd1 Bg6 Bc2 Rb6 Bb1 Qd1 Qd7 Qg4 Qc1 Bf5 Rh6 Rg6 Qa7 Bd7 Qb6 Ba4 Qa6 Bc2 Qd6 Rg2+
2bKn1kr/2RB1p1r/1r4n1/R2rB1r1/1NR3Q1/1nP2P2/1q1P4/1N1r1q1B b - - 0 1 legal: proof: b4 c5 a4 d5 e4 b5 axb5 cxb4 Qf3 dxe4 Qg4 Bd7 Qd1 Bc8 h4 g5 Bb2 gxh4 Bc1 e6 Bd3 a6 Bf1 Bc5 b6 Nc6 Ra4 Bd6 Ra5 Bb8 Ra1 Ba7 bxa7 Nb8 Ke2 Kf8 Ke3 h5 Kf4 b3 Ke5 a5 g4 h3 c3 e3 g5 h4 f3 b2 g6 e2 Na3 e1Q+ Qe2 b1R Rh2 a4 Bb2 Nf6 g7+ Kg8 Nc4 a3 Rh1 a2 Qe3 h2 Ba3 h3 Qe4 Nbd7+ Kd6 e5 Kc6 Ne8 Bd6 Nf8 Na3 Ng6 Bg2 Qf1 Qg4 e4 Ne2 e3 Nf4 e2 Nd3 e1R Be5 Red1 Nb4 Qdd3 Rg1 Qc2 Bh1 Qb2 Rg3 Rb8 a8B Rb5 Rg2 Rh7 Re2 Rh8 Re4 Rd5 Rc4 Rh5 Kb6 Rf5 Bc6 Rg5 Bg2 h1R Bd7 h2 Rc7 Rg1 Bh1 Rg3 Kc6 Rh3 Kb6 Rh8 Rc4 Nf6 Kc7 Ne8+ Kd8 Rh7 Bg2 h1R Rc7 R1h6 Bh1 Qc2 Rc4 Rb3 Nb1 Qb2 Nc2 Rb6 Nb4 Rh8 Bc7 Kh7 g8R Rh2 Rf8 Kg7 Bb8 R2h7 Be5+ Nf6 Re8 Nf8 Re6 Kg8 Rd6 Ng6 Rdc6 Ne8 Rc7 Rc5 Na3 Rd5 Rb1 a1N Rc1 Nb3 Ra1 Rbb5 Nb1 Rb6 Ra5
1bb3NR/N1kr2pb/1q1qR3/6P1/1Q1q1n1B/2P2q1q/K1RB2P1/2B1b2b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 b4 a5 Bh6 axb4 Bc1 Ra6 Qe2 Rg6 Qd1 Rg5 hxg5 Qc7 Bd3 Qb6 Bf1 Qd8 Be3 f5 Qd2 d5 Bc4 d3 Qd1 d4 Bd5 Na6 Bc1 Nc7 Bf7+ Kd7 Bg6 Nd5 exd5 Qa5 Bh5 Qd8 Bf3 Ke8 Be4 fxe4 Kd2 Kd7 f4 e5 a4 h5 a5 h4 f5 e3+ Ke1 h3 f6 e4 a6 b3 c3 b2 f7 h2 d6 b4 a7 b3 a8R e2 Kd2 Ne7 R1a5 Ng6 Nf3 Nf4 Na3 b1Q Nh4 b2 Re1 h1B Nf5 Kc6 d7 Bd6 f8B Bb8 Nh6 Kc7 Rf5 Qe7 Rf6 Qd6 Qb3 Rg8 Rf1 e1B+ Kd1 d2 Rf2 e3 Re6 Qf5 Qb4 Qh3 Kc2 b1B+ Kb3 d1Q+ Rc2 d3 Bd2 e2 Be7 Rd8 Ng8 Qd4 Bc5 Qd6 Bf2 Qb6 Bc1 d2 Bh4 Qf3 Nc4 Qh3 Ne5 Qf3 Ka3 Qh3 Nc6 Qf3 Rb2 Bh7 Na7 Qh3 Ra2 Qa4+ Kb2 d1Q Ka1 Qac6 Rc2 Qcf3 Ka2 Qdd6 Bd2 Bg3 Bc1 e1Q Bd2 Qee5 Bc1 Be1 Bd2 Rf8 d8B+ Kd7 Bc1 Qed4 Bc7 Rd8 Bd2 Qdc6 Be5 Qcd6 Bc1 Kc7 Bd2 Ne2 Bef4 Rd7 Bfe3 Nf4 Bc1 Bg3 Bed2 Be1 Bf2 Ba6 Bh4 Bb7 Nf6 Ba6 Nc6 Ba7 Rh8 Bb8 Na7 Bc8 Ng8
2nq1R2/1KR1rb2/2r2NP1/4pp1q/q2N4/1nR1r1b1/1PB2P1k/QNB2q2 b - - 0 1 legal: proof: e4 b5 a4 g5 h4 gxh4 d4 c5 dxc5 d5 e5 bxa4 c6 d4 Rxa4 d3 e6 Bxe6 Ra1 Bc8 Kd2 a5 Kc3 f5 Kc4 Kf7 Kb5 Kf6 g4 h5 c4 d2 c5 Kg5 c7 a4 Kb6 h3 c6 Kh4 g5 h2 g6 a3 Bh3 a2 Qe1 d1R Nd2 Na6 Ne4 Be6 Qe3 Rd7 Qe2 Nc5 Qd2 Nb3 Nc3 Bf7 Qe1 Rc8 Rb1 a1Q Nge2 Qa4 Rf1 h1Q Bg4 e5 Rg1 Re7 Rg3 Qf1 Kb7 Bh6 Nd4 Bf4 Bd1 Rh7 Re3 Bg3 Bc2 Kh3 Ra1 h4 Nb1 Kg2 Rc3 h3 Ra3 h2 Rc4 Nd2 Rac3 h1Q Rc5 Kh2 R5c4 Re6 Qd1 Ra8 c8N Nb3 Nd6 Ne7 Ne8 Nc8 Nf6 Rh3 Rc5 Ra6 Qe1 Qf3 Qd1 Qh5 c7 Rac6 Qe1 Na7 c8R Re7+ Rc7 Nc8 Rd5 Qe8 Rd8 Qd7 Rf8 Qd8 Rh8 Bf4 Rf8 Re3 Qe2 Bg3 Qa6 Qac4 Qa2 Qa4 Qa1
4KN2/3PN1r1/1bpb1Br1/3P2BQ/n1q5/RRpn4/3Pb1r1/1q1RBk1b b - - 0 1 illegal: No proof kernel
2n1r1bq/qP4N1/4Bk2/5bq1/1brp1b1n/RPpP4/2NQ1B2/K1RR1B2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxb5 gxh4 Qc2 f5 Qc6+ Nxc6 a4 d4 a5 Nb8 a6 Nxa6 exf5 Nb8 Kd1 Kf7 Kc2 e5 f4 a5 g4 c5 g5 h5 g6+ Kf6 g7 c4 d3 a4 b6 a3 b7 c3 b3 e4 Ne2 h3 Rg1 e3 Rh1 h2 Ra2 h4 Bb2 h3 Ng3 e2 Kc1 Ne7 g8B e1B Be6 Ng6 Ra1 a2 Na3 Nc6 Nc2 Na7 Nh5+ Ke7 Rg1 h1B Ng7 h2 Rb1 a1Q f6+ Kd6 f5 Ke5 f7 Bb4 f8R Nh4 f6 Bg3 f7 Kf6 Re8 Bd5 Rg8 h1Q f8Q+ Kg5 Qd6 Kf6 Qa6 Bd7 Qa2 Rc8 Ba3 Rc5 Qb2 Qa5 Ra8 Nc8 Qa2 Rc4 Ra7 Be7 Bd6 Re8 Ra8 Bh2 Bg3 Bb4 Bf2 Qd8 Ra3 Bf4+ Ne3 Qg2 Qd2 Qg5 Nc2 Qa2 Bfh3 Qa1 Rd1 Qa2 Bf1 Qa1 Bf7 Bf5 Be6 Qa2 Ra8 Qa4 Ra1 Qa7 Kb1 Qd6 Ra3 Qf8 Ka1 Qh8 Bd7 Bg8 Be6 Qc5 R8a5 Qb6 Re5 Qa7 Ree1 Qb8 Rc1 Qa7 Red1
2R2NR1/1B2pb2/3P1Rrk/1q3rn1/Qn1p4/4N1q1/2PPq1Bn/n1K1n1B1 b - - 0 1 legal: proof: e4 d5 h4 b5 b4 g5 a4 gxh4 e5 f5 Qg4 Bh6 Qd4 Bf4 Qe4 fxe4 axb5 c5 Bc4 cxb4 Bf1 Be3 Na3 Bc5 Nb1 Bd6 exd6 Bd7 Na3 Bg4 Nb1 Bc8 Kd1 Kf7 f4 Kg6 g4 a5 f5+ Kh6 f6 h3 f7 a4 f8R a3 b6 e3 b7 a2 Nf3 h2 Ba3 e2+ Kc1 e1N Re8 b3 Bc5 b2+ Kd1 Nf6 Bf2 d4 Ne5 Ra5 Na3 b1Q+ Ke2 Be6 Nb5 Nc6 b8Q Rg8 Qa8 Nb4 Ng6 Bf7 Nc7 Rf5 Nd5 Ne4 Nf8 Rg6 Qa4 Ng5 Rg1 h1Q Bg2 Qh2 Ne3 Qb8 Bb7 Qb3 Kd1 Qg3 Kc1 Qd3 Rc8 Qe2 Rb1 a1N Bg2 Qbb5 Rf1 Kg7 Bg1 h5 Rb2 h4 Rb3 Rd5 Rf6 h3 Ra3 h2 Rac3 Nh3 g5 h1N Rb8 Re5 Rcc8 N1f2 Ra8 Rf5 Bb7 Rh6 g6 Ng4 Bg2 Ng5 Rab8 Rh7 Bb7 Kh6 g7+ Kh5 g8B Rh6 Bg2 Rg6 Bb7 Kh6 Bg2 Ba2 B8d5 Nh2 Bb7 Bf7 Nd7 Qef2 Rg8 Qff1 Rbc8 Qfe2 Nf8
3b4/r2RRnn1/3N3B/q7/1PN1q3/PKpQpbn1/1b1q1P2/3BRkNb b - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 g5 c5 gxh4 c6 dxc6 Ne2 c5 Ng1 c4 a3 b5 Qe2 a5 Qd1 b4 axb4 Qd5 Rh3 Qd3 Rh1 Qd8 Ke2 a4 Ke1 a3 Qe2 a2 Qd1 Ra3 bxa3 Bd7 Nf3 Bf5 Ng1 Bc8 d4 Kf7 Kd2 Kg6 Kc2 Kf5 d5 h5 d6 e5 g3 c5 d7 h3 Qd3 Kg4 Be3 c3 Ne2 Kf3 g4 h2 g5 c4 g6 h4 g7 h3 Nf4 Nc6 Qd2 Rh7 Qd3 Nf6 g8R Nh5 Qd2 Qa5 d8N Ra7 Ng6 Ng7 Bc5 e3 Be2+ Kg2 Bd3 e2 Qf4 e1Q Qd4 e4 Ne5 Be7 Nd2 Bb7 Ndf7 Nd8 Rd1 a1B Re8 Bb2 Nd6 Nf7 Be2 Bd8 Nef3 e3 Rf1 h1Q Re7 h2 Qd3 Bc6 Ng1 Bf3 Kb1 c2+ Ka2 c3 N2c4 Qd2 Rfe1 Bd5 Bh5 Bf3 Re2 c1N+ Kb1 Nb3 Ka2 Nd4 Bg4 Ndf5 Kb3 Ng3 Bd4 Qb5 Be5 Qa5 Bf4 Qe1 Bg5 Kf1 Bh6 Qg2 Rdd2 h1B Qb1 Ne8 Bf5 Bd5 Nb5 Be4 Rdd7 Qf3 Nbd6 Ng7 Bh7 Bc6 Bc2 Qg2 Bd1 Qd2 Qd3 Qgd5 Nb5 Qd4 Nbd6 Bcf3 Bg5 Qde5 Bh6 Qe4 Re1+
1R1qnB2/2n1k3/3Np3/1N1pR1r1/1P1rN3/bPP3B1/nqq2Q1K/rB4n1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 e5 g5 a3 b5 e6 b4 axb4 fxe6 Qe2 e5 Qd1 e4 g4 Nc6 h4 gxh4 f4 Nb8 f5 Ba6 f6 Bc4 Bh3 Be6 Bf1 Bf5 gxf5 Qc8 Qd2 Qc7 Qd1 Qd8 Kf2 a5 b3 h5 Ra4 d5 Kg2 h3+ Kh2 e3 Bg2 d3 Bb2 h4 Be4 e2 Bc1 e1N Bg2 d2 Qg4 d1N Qd4 Na6 Na3 Bg7 Bb2 Rh5 Nc4 e6 f7+ Ke7 f8N Nc3 Ra3 a4 Ne2 Rg5 Nd6 Nc7 Kg1 h2+ Kf1 h3 Nh7 Nf6 Be4 Nfe8 Nf6 Nf3 Rg1 h1Q Qf2 Ra7 Nd4 Ra6 Ra1 a3 N4b5 Rc6 Bc1 Ra6 Bf4 Rc6 Ra2 h2 Ra1 Rc4 Ra2 Rd4 Ra1 Rd3 Bg3 Bh8 Qc5 Rd2 Ra2 Rd3 Kf2 Bg7 Re1 Rd2+ Re2 Qc1 Kg2 h1R Qf2 Rf1 Ra1 Ng1 Kh2 a2 Re1 Rd4 Re2 Bh6 Bd3 Rgg4 Re5 Qb1 Nfe4 Bc1 Qg2 Rg5 f6+ Kd7 f7 Ke7 Qf3 Bb2 Qf5 Qd1 Qf2 Bc1 Rb1 a1Q Rb2 Qe2 Ra2 Rd1 Ra8 Ba3 Rb8 Na2 c3 Qab2 Bc2 Ra1 Bb1 Qec2 f8B+
R4KR1/4P1Bb/N1q2b1Q/p1q1b1nn/5q2/N1P5/1B1pr1NP/nqk1B3 b - - 0 1 illegal: No possible last move
1b3K2/PpNk2n1/1qnprP1R/3RPBq1/N1N1b3/2B1n1R1/1qqn4/3Q4 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 f4 e5 e4 f5 exf5 e4 Qg4 Ra5 Qd1 Re5 fxe5 Kf7 Bd2 Ke7 Bc1 Ke8 Kd2 h5 g4 h3 c4 d3 Ke3 b3 Kd4 d2 Kd5 b2 a4 e3 c5 h4 c6 e2 f6 e1N a5 h2 g5 h3 g6 Qb6 g7 Nh6 g8N Nf5 c7 Ng2 a6 Nc6 a7 Ng7 Ra3 Bd6 Nc3 b1N Ne7 Qb2 Bd3 Ne3+ Ke4 Rf8 Na4 Rf7 Nd5 Re7 Rc3 Re6 Nf3 Qb6 Rc5 Qb2 Rg1 h1Q Rg3 h2 Ra5 Qb6 Bb2 Qg1 Bc3 h1Q Kf4 Qhg2 Kg5 Q1h2 Kg6 Qh4 Bf5 Qg5+ Kh7 Qe2 Kg8 Qeb5 Qf1 d1Q Nd2 Qc2 Nc4 Nd2 Qd1 Qbb2 Rb5 Be7 Rc5 d6 Rb5 Bd7 c8R+ Bd8 Ra8 Bc8 Rc5 Kd7 Kf8 Bc7 Ra5 Bb8 Nc7 Kd8 Rd5 Bd7 Qh5 Be8 Qh1 Kd7 Qd1 Bg6 Kg8 Bh5 Na6 Bf3 Kf7 Bc7 Rh8 Bh1 Kf8 Bb8 Rh6 Be4 Nc7
1B4bb/1q1R2PP/n1BqrB2/1pq1k1p1/7N/Qqb2R1N/4P1Rb/5b1K b - - 0 1 legal: proof: f4 d5 b4 a5 g4 axb4 c4 dxc4 Bb2 e5 Bc1 exf4 g5 b5 g6 h6 Qa4 Rh7 gxh7 Qf6 Qb3 Qd8 Qd1 Ba6 Ba3 Qd7 Qc1 Nf6 Bg2 Nc6 Nc3 Bd6 Nf3 Ke7 Kf1 Rh8 Ke1 Bc8 Qd1 Nb8 Nb1 Ng8 Ng1 Qd8 Bf1 Ke8 Bc1 Bf8 h4 g5 h5 Nd7 Qa4 Ne5 Qd1 Ng6 hxg6 Bg4 Rh2 Bf5 Rh1 Bc8 Kf2 Ke7 Kg2 Ke6 a4 c5 d4 f5 a5 f3+ Kh2 h5 a6 f2 a7 c3 a8R c2 d5+ Ke5 d6 b3 d7 f4 R8a3 b2 Qe1 h4 R3a2 f3 Ra7 h3 Ra8 c4 R1a7 c3 Nd2 b1Q Rb7 Nf6 Ra6 Qb3 Ne4 Ne8 Bg2 f1B Nd2 f2 Rc7 Bd6 Ba3 c1B Bc5 c2 Rcc6 Bb2 Ba7 c1B Bd5 Bc3 Bb8 B1b2 Ra3 Nc7 Qc1 Na6 Rc7 Re8 Bc6 Re6 Ra7 Qb6 d8B Qc5 Rd7 Ba1 Ne4 Bc7 Nd6 Bab2 Nf5 Bb7 Bf3 Bd5 Nh4 Bc4 Bc6 Qd6 Kg3 h2 Nh3 Qc5 Rg1 h1Q Be7 Qhd5 Kh2 Qdd6 Rg2 Kd4+ Kh1 Be1 Rd8 Re4 Rd7 Qbb4 Ra4 Qdd5 Rd8 Bh2 Bb7 Qdd6 Rd7 Bg8 Rg1 Re6 Nf4 Bh3 Ra2 f1Q Ra3 Bd2 Bg2 Qf3 Qa1 Qa8 Bc6 Qb7 Rf3 Bf1 Rg2 Qb3 Qa3 Be1 Nd5 Ke4 Bd8 Bh8 g7 Ba5 Nf4+ Ke5 Nh3 Bc3 Bf6+
rb1n3K/2Bq4/3NB3/N3R2k/P1p1qp1b/RpR1q3/brn1P1BP/7Q b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 d4 h5 g4 hxg4 Nd2 c5 Nb1 c4 Bh3 Qe7 Bf1 Qc5 dxc5 Rh7 Nc3 Rh5 Nb1 Rh8 Kf2 g5 a4 b5 d6 f5 d7+ Kf7 d8R Kg6 c6 f3 Kg3 f4+ Kf2 b3 c7 b2 Nd2 b1Q Bg2 b4 Re8 g3+ Ke1 f2+ Kf1 g4 Re7 Kh5 Rd7 Qe4 Ra2 Na6 Ngf3 Nh6 Ra1 Nf7 Rd5+ Bf5 c8B Be7 Re5 Nd8 Bb2 Bh4 Ra3 b3 Bd7 Nb4 Be6 Nc2 Nd4 Rh7 Ba1 Rd7 Nc6 Rd5 Na5 Rd7 Nf3 Rd2 Ng5 Bg6 Bf3 Bh7 Kg2 Bg6 Rg1 Bf5 Nf7 f1Q+ Kh1 Qf2 Nd6 Qa7 Kg2 Qd7 Bb2 Nd4 Bc3 Rb2 Qa1 Nc2 Rc1 Kg5 Bd4 Kh6 Bb6 Kh5 Kg1 g2 Bc7 Bf6 Kf2 g1B+ Kg2 Ba7 Qb1 Bb8 Qa1 Nd4 Rc3 Nc2 Qh1 Bg5 Kf2 Bh4+ Kg2 Qec6 Be4 g3 Kf3 g2 B4d5 g1Q Be4 Kh6 B4d5 Qa7 Be4 Bh7 Kg4 Qe3 Bg2 Bd3 Re4 Qb7 Kf5 Kh5 Ke5 Ne1 Kf5 Bb1 Ke5 Nc2 Kf5 Bg3 Kf6 Ba2 Re5+ Kh4 Nf7 Qbe4 Kg7 Bf2 Kh8 Be1 Bf5 Kh5 Nd6 Bh4 Be6+
bb4B1/N5B1/r2R2P1/2n1p2q/k2B1p1R/rqQ2n1K/Pq1pP3/NrN5 b - - 0 1 legal: proof: c4 c5 g4 h5 d4 cxd4 gxh5 g5 b4 a6 b5 axb5 f4 bxc4 fxg5 c3 Kf2 b5 Kg3 e5 h4 f5 g6 d5 h6 Kd7 h5 Kc6 h7 b4 h6 Kb5 Nh3 f4+ Kg2 d3 Be3 d4 Kh2 b3 Qc2 d2 Qc1 d1Q Ng5 c2 Nd2 d3 Bg2 b2 Ngf3 b1R Nb3 Bb7 Kh3 Ra3 Nfd2 Qg5 Bd5 Ba8 Bd4 Nf6 Bg8 Na6 Qb2 c1Q Qc3 Qcc2 Nc1 Ng4 Ndb3 Nc5 Rh2 Ka4 Rh1 Rb2 Rb1 d2 Na1 Rb8 Rb6 Nh2 Rd6 Qb2 Rb6 Qe7 Bd5 Nf3 Kg4 Bc6 Rh4 Qb1 Kh3 Qg5 Be6 Rg8 h8N Bd6 h7 Qh5 Nf7 Rgc8 h8B Ba8 Bf6 Rc6 Nd8 Rb7 Bc4 Bb8 Bg7 Rf6 Be6 Qbc2 Rc6 Rb1 Bg8 Qb2 Re6 Qdb3 Nc6 Nd3 Na7 Nc5 Rd6 Re6 Rd7 Ra6 Rd6
2B2RB1/1Knn2NB/1p2Pq1r/1bN4q/1n1P1b1p/1N2k2r/p1rP1R2/2Q5 b - - 0 1 illegal: Other
b2Q1r2/3rnB1R/p4b1P/p2kn2N/R1NPq3/RB1Nq2P/6p1/3Kn2r b - - 0 1 legal: proof: b4 d5 g4 h5 gxh5 e5 a4 d4 f4 exf4 b5 b6 a5 d3 Ba3 bxa5 Bb4 c5 cxd3 cxb4 d4 Rh7 d5 Rh8 d4 Kd7 e4 Kd6 h3 g5 h6 f5 b6 f3 b7 f2+ Kd2 a6 Na3 g4 Qb1 b3 Bc4 f1R Nf3 g3 Rh2 f4 Ra2 b2 Ne1 f3 Kd1 f2 Bb3 Nc6 b8N Ne5 Nd7 Rh7 Nf6 Be7 Nh5 Qe8 Rg2 Bb7 Nc4+ Kd7 d6 Kc6 d7 Bf6 d8R Rd7 Ra4 Ne7 Qc1 Rh1 Qg5 f1N Nd3 Nd2+ Rg1 g2 Ra3 N5g6 e5 Nf3 e6 Nge5 Rc8+ Kd5 Rc7 Ne1 Ra4 Nc8 e7 Rb8 Rf1 Ba8 Rf3 b1Q+ Nc1 Qf8 e8B Qe4 Nd3 Qe7 Bf7+ Qe6 Re3 Ne7 Rg3 Rh8 Qg8 Qe3 Qd8 Rf8 Rg7 N5c6 Rh7 Ne5 Rb7 Qe4 Rbb4 Qe3 Ra3 Qe4 Rba4 Qe3 Bg6 Qf5 Be8 Qfe4 Bf7+
1RRKB3/1b2Pp2/p2b1bB1/Nn1q1n2/2R1nP1P/3Q1N1p/8/1Nqr1k1r b - - 0 1 legal: proof: b4 b5 d4 e5 a4 exd4 axb5 c5 bxc5 g5 h4 g4 Qd3 h6 Qh3 gxh3 g4 Rh7 g5 Rh8 g6 Bb7 Be3 Bc8 Bg5 hxg5 Kd2 Ke7 Na3 Ke6 Kd3 Kd5 e4+ Ke5 Kc4 Kf4 Kd5 a6 c4 d3 c6 d2 g7 d1Q+ Bd3 g4 c7 g3 b6 g2 c5 Ne7+ Kd6 Rg8 b7 Nbc6 b8N Nd4 c6 Qb1 f3 Ke3 f4 Kf2 Nf3 g1B e5 Qc2 e6 Kg2 Ke5 d5 Kf6 Qd7 Bh7 Nef5 Rb1 Qd2 Rb7 Nb5 Nb1 d4 Rb6 Be3 Rc1 d3 Rc4 Qc1 Rb7 d2 Rb6 Bb7 c8B d1N c7 Nf2 Nc6 Kf1 Na5 Bc6 Rb7 Qd3 Bd7 Rd8 Rb8 Bb7 c8R Qe4 Be8 Rd1 Rb4 Bd6 Rbc4 Nfd4 Bf5 Qd5 Bc2 Bd2 Bh7 Bc3 Bc2 Bc7 Ke7 Bd6+ Kd8 Bb2 Bh7 Nf5 e7 Ne4 Ne1 Rh8 g8Q Bf6 Qg3 Rg8 Qc3 Rg4 Nf3 Rg1 Bg6 Rh1 Qd3+
1N1K2QN/2p2Rr1/3Pb3/nk3b1P/R1b2q2/PrNBr1b1/3p1p1B/3n3B b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 gxh5 d5 c4 d4 d3 b5 Nd2 Qd5 cxd5 Ra3 Nb1 Rxd3 Ba3 Rd2 Bb2 Ne7 Bc1 Ng8 Kf2 Kd7 Kf3 g5 Ke4 f5+ Ke5 f3 h4 b3 e4 g4 h6 f2 a3 g3 h7 b4 h5 f4 Bb5+ Nc6+ Kf5 f1B e5 d3 Qg4 g2 Qe2 b2 Ba6 b3 Qf3 Bd6 Qg3 f3 Kg5 f2 Rh4 Nge7 Kf6 Na5 Nf3 g1R Ra4 Re2 Qg8 Rg7 Nd4 Nf5 Nc6 Re3 Nc3 b1B Bb2 d2 Bd3 Bc2 Re1 Be2 Ba1 b2 Rg1 b1Q Rg2 Re7 Rg7 Qb4 Rf7 Qf4 Bb2 Bb3 Ba1 Bc4 Bb2 Bg4 Ba1 Bb4 e6+ Kd6 Nb8 Kc5 Bb2 Kb6 Ba1 Bd6 Bb2 Rd7 e7 Kc5 e8B Bh3 Rf8 Rg7 Bc6 Be6 Rf7 Bg4 Qd8 Rhg8 h8N Bh3 Qe8 Rgg3 Ba8 R8g7 Qg8 Rgf3 Nd1 Kb5 Be5 Qg4 Bh2 Bg3 d6 Qf4 Bf1 Rb3 Bd3 Ne3+ Ke7 Bhg4 Kd8 Bgf5 Nb2 Nd1 Bb7 Re3 Bh1 Nc3 Nd1 Rf3 Ne3 Nd1 Nd5 Re3 Nc3+
r1b1k1N1/Bn3n2/B7/R1P1n3/3bp2Q/1qN1R1PP/1np2pK1/2q1Bn1N b - - 0 1 illegal: No proof kernel
3B1q1r/NR2pn1r/1r3Q2/1PN1R1r1/2N2P1p/BBr3kP/p3q2n/2b4K b - - 0 1 legal: proof: e4 c5 b4 d5 f3 dxe4 a4 b5 axb5 cxb4 Ke2 exf3+ Kf2 f5 Ke3 f2 Be2 f1R Nc3 Bb7 Nb1 Bf3 Kf4 Rf2 Kg3 f4+ Kh3 Rf1 Bb2 Bc6 Bc1 f3 Kg3 f2 Kh3 Bf3 gxf3 Qd4 Kg2 Qd8 c4 Kd7 d4 Ke6 h3 Kf5 d5 h5 d6 a5 c5 g5 c6 b3 c7 h4 c8N g4 d7 a4 Qd2 g3 Qd1 b2 Qb3 a3 Qe3 a2 Qd4 Nc6 Na3 b1R Qg7 Nd4 Nc2 Rb8 Qh6 Rb6 Na7 Rb3 Nb4 Rc3 Na6 Bg7 Rh2 Qf8 d8B Be5 Bb2 Bf4 Bd1 Bc1 Kh1 Ke5 Qe6+ Kf4 Ba3 Nh6 Bb3 Nf7 Nc5 Rh7 Qc6 Rd1 Qe6 f1Q Re2 Rdd3 Re5 Qe2 Nb7 Rc8 Nc5 Rc3 Rb1 Rcb8 Rb2 Rc8 Rd2 g2+ Kh2 Nf5 Rd7 Ng3 Rb7 Qg7 Bc7 Rch8 Bd8 Qf8 Ne4 Ke3 Nc5+ Kf2 f4 Rc4 Qc6 Rc3 Nf3 g1R Bc4 Nf5 Qe6 N5h6 Qf6 Rg5 Kh1 Kg3 Bb3 Ng4 Nd2 Nh2 Nc4
b1K1R1r1/2n2B1k/Q1N3PP/pqN3p1/1bb3P1/B1R1p2b/1q3R2/q2B1n2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Qd3 h5 Qf3 h4 Qg3 hxg3 Ke2 Kf7 h4 Kg6 f4 d5 b4 e5 c4 a5 f5+ Kh7 b6 g5 b7 g2 b5 d3+ Ke3 d2 h5 d1B h6 Qe8 c5 Ra6 c6 Bb3 c7 Bb4 b6 Ne7 Rh2 Qb5 Ba3 Rg8 Nc3 Bc4 Nge2 g1Q+ Rf2 Qh2 Rc1 Be6 c8B d4+ Kd2 d3 Ke3 d2 Na4 d1B Nd4 Bd3 Nc6 Bec4 Rc3 Bf3 Be6 Bde2 Bg2 Bf1 Bh1 Bh3 Bf7 Bfg2 Nc5 Bf3 Rf1 Qb2 Rf2 Ra7 Bg2 Na6 b8Q Nc7 b7 Ra6 Qc8 Rb6 b8R Ra6 Nd8 Rag6 Bf1 Bfg2 Nc6 Bf3 Bd3 Bfg2 Bc2 Ned5+ Kd2 Bh1 Qa6 Ne3 Re8 Nf1+ Kd1 e3 Bb3 Qa1+ Kc2 e2 Ba4 Ng3 Kd2 e4 Ke3 e1Q+ Kd4 e3 Ke5 Qec1 Bd1 Be6 Kd6 Nf1 Ke7 Bc4 Kd8 Qcb2 Kc8 B1g2 Na7 Ba8 Nc6 Qe2 Bb2 Qd2 Ba3 Qdb2 fxg6+
kn1BN2n/2P1RR1q/2p1P3/P1qQ2p1/1N2rp1n/3K2bb/3B1N2/5nqR b - - 0 1 legal: proof: f4 b5 g4 e5 c4 exf4 b4 bxc4 b5 h5 gxh5 a6 d4 Qe7 d5 Qe4 d6 Qe7 b6 Qd8 Bg2 Ra7 Bc6 Rb7 Ba4 c6 Bb5 Rc7 dxc7 axb5 Kd2 g5 e4 f5 h4 d5 a4 Kd7 b7 b4 e5 d4 h6 c3+ Kd3 f3 h5 b3 a5 b2 h7 f2 h6 f1N Qe2 c2 Nh3 Bd6 Ra2 Ne7 Qf2 Qf8 Qh2 Ng6 Nc3 b1Q Bd2 c1Q+ Rc2 Qf7 Na2 Re8 h8B Qh7 Bf6 Nh8 Bd8 Qb6 Qg2 Qc5 Nf2 Qd1 Qg1 Qg4 Qh2 Qg1 Nb4 Re7 Rc4 Re6 Qg2 Re8 Kc2 d3+ Kc3 Re7 Qd5 Re6 Be3 d2 Kd3 d1N Rf4 Re7 Bd2 Nde3 Re4 Ng2 Re1 Na6 b8R Nh4 Rb5 Nb8 Re2 Qb6 Rc5 Qb5+ Rc4 Qc5 Rf4 Ke8 Ree4 Be6 Re1 Kd7 Re2 Kc8 Rf3 Qf7 h7 Kb7 Rf4 Ka8 Re1 N8g6 h8N Qh7 Nf7 Re8 Nh6 Nh8 Ng8 Bf7 Ree4 Bh5 Nf6 Bg4 Re1 Re7 Ne8 Bh3 Rd4 Rd7 e6 Bg3 Re5 f4+ Rf5 Qh5 Rf7 Qh7+ Qe4 Rd5 Qf5 Re5 Rdd7 Re2 Rde7 Re4 Qd5
Qr5b/7n/2K1kpBp/4R1qB/p1n2PpP/nR4N1/1B1r2P1/1NrN3r b - - 0 1 legal: proof: c4 a5 e4 c5 a4 d5 b4 dxe4 b5 b6 Nh3 Ba6 bxa6 b5 Ng1 bxc4 Be2 c3 Bd3 c4 Bxc4 Qd6 Bf1 Qd7 Qb3 Qxa4 Qc2 Qd4 Qd1 Qd8 Ke2 Kd7 Ke3 e5 h4 g5 f4 h6 d4 a4 d5 c2 d6 Nf6 a7 Bg7 Nh3 Nh7 Bd3 Nc6 Ra3 Na5 Nf2 Ke6 d7 Rb8 Bb2 c1R a8B g4 Bc6 f6 Rb3 Qg8 Qf3 Rd8 Re1 Nc4+ Ke2 e3 Bg6 Rb8 Kd3 e2 Nd1 e4+ Kd4 e3 Kc5 Rd8 Bb5 Rb8 Kc6 Rd8 Rf1 e1N Bh5 Nc2 Re1 e2 Ba6 Nd6 Bd3 Nc4 Bdg6 N2a3 Qd5+ Ke7 Qa5 Ke6 Qa8 Rb8 Rg1 e1R d8N+ Ke7 Nb7 Ke6 Rh1 Rf1 Rhh3 Rh1 Nd6 Rd8 Nf5 Rd2 Rhd3 Qf7 Bd4 Rb8 Bb2 Bh8 Ng3 Qg7 Rd5 Qg8 Bc2 Qg5 Bcg6 Rf2 Rf5 Rd2 Re5+
3N1b1k/Rb1Bprp1/2Q5/PP2pRN1/1rB5/1N4P1/1p1bq1b1/nK1B2r1 b - - 0 1 illegal: No proof kernel
1K3B2/N2Q1RRr/2pr1Bp1/2Pk2n1/6Bp/rRr1b1p1/rP4Pn/4Nr2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 Nh3 bxa4 Ng1 e3 Be2 e6 Bf1 e5 h4 e4 Rh3 Qe7 Rh1 Qe5 fxe5 Bf5 h5 Bg6 hxg6 fxg6 Qg4 g5 Qd1 g4 Ke2 Kf7 d4 Ke6 c4 h5 c5 a5 Na3 g6 Nb5 a3 Na7 a2 Nc6 g3 Rh2 a4 Na7 c6 Rb1 a1R Qd2 a3 Nf3 a2 Ne1 Kd5 e6 Bh6 e7 Na6 e8R Nf6 Rb8 Nc7 Rb3 Rh7 Rh3 Ne6 Rh1 Kc4 d5 Ng5 d6 Ng4 d7 Nh2 d8B h4 Qd7 Rc8 Bf6 Rf8 Bd2 Rd8 Rd1 Rc1 Bdc3 a1R Bg7 Ra6 Bcf6 Ra3 Bf8 Rc3 Rd6 Ra2 Re6 Ra8 Re7 Ra3 Rg7 Ra2 Kd1+ e2+ Kd2 Rd8 Rb5 Rca3 Rb3 e3+ Kc2 Re8 Rg1 Re6 Rh1 Rd6 Rg1 Kd5 Kc3 Ne6 Kb4 Ng5 Nd3 e1R Be2 Rb1 Rf1 Rd1 Bg4 e2 Rf3 e1R Rf2 Rf1 Ne1 Ne4 Rff3 Be3 Rf2 Rd3 Rf3 Nc3 Rf2 Na4 Ka5 Nc3+ Kb6 Ne4 Kb7 Ng5 Kb8 Rc3 Bd8 Rh8 Rff7 Rh7 Bf6
bb1QnB1N/1b5q/1kN2nR1/N1r3P1/RP2n1Br/3KB1q1/3Pr1r1/2r2r2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 Kd7 Ke2 c5 g4 Kc7 b4 f5 g5 a5 e5 h5 e6 a4 e7 f3+ Ke3 f2 e8N+ Kb6 Ng7 c3 Ba3 f4+ Ke4 h3 Ne8 f3 Qe2 c4 Bc1 c2 Bb2 c1R Bg7 a3 Rh2 h4 Nd6 a2 Nb7 c3 Qc4 c2 Qd3 Bd6 Qc4 Qc7 Qd3 Nd7 Rg2 h2 Ke3 h1Q Qg6 h3 Nc3 h2 Qd3 Ngf6 Nh3 Ne8 Ne2 Ndf6 Na5 Bb7 Bf8 Rh4 Nd4 Qh7 Nf4 Bb8 Rg3 Qg2 Ndc6 h1B Be2 f1R Rh3 f2 Ng6 Qg3+ Bf3 Rg1 Nh8 f1R Qd5 Rg2 Qd8+ Qhc7 Kd3 Ra6 Rb1 a1N Rh2 Nb3 Ra1 Rce1 Ra4 c1R Rh3 Ree2 Rh2 Rf4 Rh6 Rh4 Rg6 Ra7 Qc8 Qh7 Qd8+ Qgc7 Bg4 Nc5+ Kd4 Nce4 Kd3 Ra8 Ne5 Ka7 b6+ Ka6 Nec6 Kb5 Bc5 Qg3+ Be3 Ra7 Nf7 Ba8 Nh8 Rc7 b7 Rc8 Ne7 R8c5 Nec6 Bc7 b8B Kb6 Qd5 Be5 Bd6 Bb7 Bf8 Bb8 Qg8 Ba8 Qe6 Rgh2 Qd6 Nc3 Qd7 Bf3 Nd4 Rhg2 Qc8 Bfb7 Ndc6 Nce4 Qd8+
2K4n/2bn1r1n/3q2Rn/7R/1qrP3r/N4PN1/Q1bB1Pb1/n1krRB1B b - - 0 1 legal: proof: c4 a5 h4 f5 b4 axb4 c5 g5 c6 gxh4 Bb2 f4 Bc1 f3 exf3 dxc6 Rh3 c5 Rh1 c4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 a4 Kd4 g4 c5 d3 h5 g5 b5 a5 h3 g6 e5+ Kg3 e4 Kf4 h2 g7 c3 a6 b3 a7 c2 Nh3 b2 Ra6 e3 Ra2 e2 Nd2 Kc3 Ke5 e1N d4 b1B Ng5 b4 Ba3 c1N Ra1 b3 Ra2 b2 Bh3 c4 Bg2 h4 Nh3 Nc2 Bf1 Na1 Bd3 Bd6+ Kd5 Ne2 Re1 h1N Qc1+ Bc2 Nf4 b1Q Nf1 h3 Qd1 h2 Rb2 Rh4 Nh5 Nhg3 Qc1 h1R Ne3 Ne4 Rb5 Nh6 g8R Ng5 Qb2+ Kd2 Ng3 c3 Rg6 Bh3 Qa2 Nh7 Bb2 Nd7 Kc6 Bg2 Kb7 Bc7 Rh5 Nf4 Bf1 Rc8 a8B Qe7 Qa6 Rf8 Qa2 Rf7 Kc8 Qd6 Bd5 Rg1 Bdc4 Rgh1 Ba3 Qbb4 Bb2 Rg1 Be6 Rgh1 Bh3 Rg1 Rg4 Ng6 Rgg5 Nh8 Rg6 Bb3 Nc2 Ba4 Na3 c2 Rf6 c1R Rg6 Rd1 Bc3+ Kc1 Ba6 Bc2 Be2 Bf1 Bg2 Rgh1 Bd3 Rg1 Bh1 Bg2 Ree6 Rge1 Bf1 Re5 Re7 Rc5 Re1 Rc4 Bd2+
1b4K1/1PnNr2r/QqnbR1b1/2nRP3/R3Bnk1/b1B4P/1q4r1/1N2B2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 b4 Ke6 e4 a5 c4 g5 c5 f5 c6 d5 b6 f3 Kg3 f4+ Kf2 g3+ Ke1 f2+ Ke2 d3+ Kf3 a4 Kg4 d2 b5 f3 c7 d4 e5 a3 b7 g2 b6 d3 Qe2 d1B Nd2 a2 Ne4 d2 Nd6 Nd7 b8B Ra7 Nh3 g1N Nc4 Bc2 Bb2 d1Q Nd6 Ne7 Bc3 Qb1 Bb4 Nc6 Qe4 Qb2 Nf7 Ne2 Be1 Nf4 Ng1 Nc5 Bb5 f1N Bd3 f2 Nh6 Rh7 Qe2 Bb7 c8R Bd6 Bc7 Ba8 Rd1 a1B Nf3 Ra2 Be4 Ne3+ Kg3 f1R Qa6 g4 Ng8 Bb1 Nf6 Ned5 Nd7 Re7 Kh4 g3 Kg5 g2 Kh6 g1B Rd4 Rf2 Rb4 Rg2 Ra4 Ra3 Nd2 Rh3+ Bh4 Bc2 Nb1 Bd4 Rd1 Bd3 Bf3 Kf5 Be4+ Kg4 Rd2 Bb7 Ra8 Qb8 Rd1 Qa7 Re8 Bc2 Bd8 Bb8 Rd2 Nc7 Rd3 Bc3 Rdd4 Bb4 Rd5 Re6+ Kh7 Re7+ Kg8 Bd3 Be1 Rhh7 Rd4 Bc2 Bd5 Bg6 Be4 Qe2 Rd1 Bb2 Rd5 B2a3 Bc3 Qb2 Be1 Ref7 Re6 Re7 Bc3 Nb3 Be1 Bd6 Bc3 Nc5 Be1 Ref7 Bdh4 Re7 Bc3 Nd8 Bhe1 Bc6 b7 Qab6 Rd1 Bd5 Bd3 Bf3 Be4 Nc6 Rd3 Rg3 Rdd4 Bh1 Rd5 Rg2 h3+
1b2b1n1/P1P1NN2/5b1b/1r1q1bB1/n1Qr1P1N/5rn1/1RRn4/qR1BK2k b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 a4 Kf7 h4 Kf6 f4 g5 c4 b5 a5 d5 c5 e5 h5 e4 a6 b3 h6 d3 h7 e3 c6 d4 c7 b2 Bd2 b4 Bh3 b3 Bc3 e2 Ba5 d2+ Kf2 e1B+ Kf1 d3 Ne2 g3 Bb4 g4 Na3 b1N Nc4 g2+ Kg1 b2 Ne3 Nd7 Nc3 Bh4 Ra2 Nc5 Qc1 d1B Nb5 d2 Ra4 Rb8 Rh2 Bh6 Nc2 Qd5 Nc3 Rb5 Ra3 Na4 Bc5 Be2 Qe1 d1R Qf1 Nd2 Nd4 b1Q Rb3 Qa1 Rb2 Bd3 Rb1 Bd7 Nf3 Be8 Ba3 B4g5 Kf2 g1N Nh4 Ne2 Rg2 Ng3 Be7+ Kf7 f6 Ke6 f7 Bf6 f8R Bf5 Bd8 Kd6 Rh2 Kc6 Bg2 Kc5 Bf3 Kd4 Kg2 Ke3 Qc4 Be5 Bg5 Bf6 Ne4 Rf1 Bd1 Rf3 Nd6 Nge4 Rb2 g3 Kg1 g2 Nc8 Ng3 Ne7 Bc6 Rb8 Be8 Qf1 Ke4 Rc2 Ke3 Rh1 Ke4 Qc4+ Ke3 Kh2 g1B+ Kg2 Bf2 Qc5+ Ke4 Qc4+ B2d4 Rg1 Ke3 Rh1 Ba7 Rb6 Bb8 a7 Ra5 Rbb2 Rb5 Kh2 Kf2 Re1 Ne4 Kh1 Kg3 Kg1 Kh3 Rf1 Ng3 Re1 Rc3 Kf2 Kh2 Rf1 Rd3 Ke1 Rf3 Rf2+ Kh1 Rc1 Ndf1 Rfc2 Nd2 Nc8 Ne7 Rcb1 Rf8 h8N Ng8 Ne7 Rf7 Nc8 Rd7 Ne7 Qe4+ Be2 Rd4 Nf7 Qd5 Bd1
nbn3N1/3P1QnR/3b1P2/1Br2q1P/1Nr1bN1b/n7/K2nbb2/3BB1Rk b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 h4 Kd7 d4 Kd6 Kd2 e5 Kc2 g5 Kb3 b5 a4 c5 f4 g3 a5 g4 h5 c4+ Kb2 c3+ Kb3 e3 f5 e4 a6 g2 a7 g3 f6 c2 Qe2 Qa5 Nh3 g1B Qc4 e2 Ng5 e1N Nh3 g2 Bh6 c1B Qc2 e3 Ra2 e2 Qf5 Nf3 Bd2 e1B Rh2 Ne7 Bg5 Bh4 Nd2 Bgf2 Rc2 g1N Be3 Nd7 Bg5 Nb6 Qh7 Bg4 Rc8 Ne2 Qf7 Nf4 Rc4 Nec8 Bh6 Ne6 Bg5 Ng7 Nb1 Bf4 Rg2 Nd2+ Kb2 b3 Na3 b4 Nc2 Be2 Rc7 Qc5 Ka1 b2+ Ka2 b1N Rg1 Na3 Bh6 Rb8 a8B Qb5 Bb7 Na8 Ba6 Qd7 Bb5 Qf5 Bg5 Be5 Nf4 Rb6 Bg2 Rc6 Bf3 Rc4 Re7 Bd3 Bd1 b3+ Kb2 Rg8 Nb4 Be2 Ka1 b2+ Ka2 Bhg3 Bh4 b1B+ Kb2 Be4 Ka2 Rc5 Qe8 Ne6 Rh7 Rg4 Qf7 Be7 Ka1 Ng7 Ka2 Kc7 d6+ Kb7 d7 Bb8 d5 Bed6 Bg5 Bh4 d8N+ Kb6 Bd7 Kc7 Ndc6 Kb6 Bh6 Kb5 Bg5 Kc4 Ne7 Kd4 Ng8 Ke3 Bb5 Kf3 Bh6 Bf8 d6 Be7 d7 Bed6 Ng2 Kg3 Be3 Kh3 Nf4+ Kh2 Rg2+ Kh1 Bd4 Rg3 Bc3 Rd3 Rg4 Rd4 Rg6 Rdc4 Rg3 Nb3 Be1 Nd2 Rg1+
NqbK4/2r5/3bRPrR/Rq2N1n1/1b1nP2Q/1r1bP3/1B4qN/k2n1Bq1 b - - 0 1 illegal: No proof kernel
1r2B1K1/3NRr1P/q2B2bN/Q1Pn4/b1R2b2/2nqR3/n1Pn2r1/q4Bkq b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 Ke7 e4 Kf6 a4 Kg5 h3 Kh4 a5 b5 e5 d5 e6 f5 a6 g5 a7 b3 e7 f3 Ke3 Kg3 Kd4 Kf2 Ke5 b2 e8R g3 h4 f4 h5 b4 h6 b3 h7 d4 Qd3 g2 Ra2 g4 Qe4 g3 Bd3 Na6 Bb5 d3 Bc4 d2 Ra1 d1N Bd5 Nc3 Qd3 Bd7 Rh3 Nf6 Qb5 Nb4 Qa4 Bd6+ Kd4 Rb8 a8B Rf8 Qa7 Ba4 Rh6 Rf7 Ra3 Nba2 Ne2 g1Q Re7 g2 Ng3 Qh1 Nd2 b1N Qa5 g1R Bc4 b2 Bf1 Rg2 Nc4 Nfd5 Nf5 Nd2 Bc6 b1Q Be8 Kg1 Ne5 f2 Rh4 f3 Nh6 Qa1 Nd7 Bf4 Rg4 Qb6 Bb2 Qa6 Rb3 Be3+ Ke5 Qd3 Ke6 Bf4 Be2 f1Q Rh4 Nce4 Be5 f2 Bd6 Nec3 Ra3 Qa6 Bb5 Qd3 Rb3 Bg5 Rc4 f1B Ra3 Rf3 Rb3 Bf4 Kf7 Rff2 Ra3 Be2 Rb3 Bh5+ Kf8 Bg6 Kg8 Qdh3 Rb1+ Rf1 Rbe1 Qd3 R1e3 Bg3 Rg4 Rf7 Bc4 Bf4 Rh4 Qe4 Bf1 Qed3 Rg4 Bh2 Rb4 Bf4 Rc4
1br1N2r/2r1P1n1/3nQq1R/q1NqbbN1/2r1n2n/1KBB3B/1PP4k/7R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 hxg4 d5 e5 fxe5 c6 Bf4 cxd5 Bc1 d4 Kd2 Ke7 e4 Ke6 h4 d5 h5 a5 h6 f5 h7 g5 Qf3 d3 Kc3 d2 Qf2 d1N+ Kd4 g3 Bd3 g4 Qd2 g2 Bb5 g3 Qf4 a3 Rh2 a2 Rh1 a4 Bd2 a3 Be1 Bd6 Rh2 Ne7 Qe3 f4 Nd2 f3 Qd3 f2 Qf3 f1Q Nb1 Na6 Rh5 Nc5 Qe3 Qf6 Bc4 Nc3 Bf1 Qa5 Rh1 Bb8 Rh5 Nb7 Rg5 Nf5+ Kd3 d4 Kc4 d3 Qa7 d2 Qc5 d1Q Rh5 Ng7 Qc6+ Nd6+ Kb3 Qdd5+ Qc4 Ra7 Rh6 Rc7 Nf3 g1B Nbd2 g2 Bd3 Bd4 Rb1 a1R Ng5+ Ke7 e6 g1N e5 a2 Rd1 Nf3 Nde4 Nh4 Nc5 Nce4 Bc3 Bd7 Rh1 Re1 Bf1 a1R Bh3 Rhc8 h8N Ra4 Nhf7 Re3 Bf5 Rh3 Bg4 Qc6 Qe2 Rc4 Qe1 Rh2 Bh3 Qd5 Qe2 Ke8 e7 Bf5 Nce6 Kd7 Nc5+ Kc6 e6 Be5 Qe3 Qd2 e8B+ Kd5 e7 Qg2 Be1 Qgd2 Qe2 Kd4 Qg4 Ke3 Bb5 Qd5 Bc3 Kf2 Ba6 Bh7 Qd7 Kg3 Qe6 Bf5 Bg4 Nb7 Nd6 Rh3 Ne8 Nbd6 Rb1 Kh2 Rf1 Nf3 Re1 Rh5 Bh3 Nh4 Rh1+ Kg3 Ra1 Kh2 Rg6 Rh8 Rh6 Ra4+ Bc4 Qd4 Bcf1 Rc4 Bd3 Qd5 Rh1+
1N1K2Nr/1P1nB1qb/r3b3/1N6/1P5k/1qnRnR2/1RQ1P3/1rbBb1qn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 c4 h5 g4 d5 b4 f5 b6 a4 c5 a3 b7 h3 c6 d3 c7 h4 Be3 h2 Bc1 d2 Qe1 d1N Qg3 d4 Bg2 h3 Qd3 a2 Qc2 d3 Bd2 Nd7+ Ke6 Ngf6 Bf3 Kh4 g5 Nc3 g6 Ra6+ Bc6 f3 g7 f4 g8N f2 Ne7 f1R Na3 f3 Qc1 f2 Qc2 Nfd5 Nc4 Bh6 Nb6 Qf8 Ba4 Ne3 Rd1 a1B Ng8 Qg7 Be1 d2 Nf3+ Kh5 Rg1 h1N Rg3 h2 Nd4 Kh4 Rf3 Bb2 Rb1 d1Q Nb5 Bc1 Rb2 Bf4 Bd2 Bg3 Bb3 Re1 Ba4 f1Q Bb3 Qd4 Ke7 Qg1 Kd8 Qg7 Ba4 Rf1 Bb3 Be1 Ba4 Nf6 Bb3 Bd7 c8R Be6 Rc6 Nd7 Rd6 Nc4 Bf4 Ne3 Rd5 Qd3 Bd6 Qc4 Ba4 Qb3 Bc5 Nf2 Bf8 h1B Rd3 Bg2 Bc5 Nh1 Bd6 Bgh3 Bc5 Bhf5 Be7+ Nf6 Nd7 Be4 Bc5 Bh7 Nb8 Nd7 Be7+ Nf6 Qd2 Qc4 Nd6 Bf2 Rc2 Ba3 Rd5 Rb1 Nb5 Bc1 Rb2 Be1 Bd1 Qa2 Rd3 Qb3 Bd6 Nd7 Qc2 Bf7 Bf8 Be6 Be7+
qNRN4/Q1BP2PK/4bq2/R3q3/Pq1b2rn/1r5B/2n1rb1k/1B1brR2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd3 Ke5 a4 c5 e4 h5 g4 b5 d6 c4+ Kc2 b3+ Kc3 f3 d3 b2 g5 f4 d7 f2 g6 h3 g7 h2 Bh3 f1R Be6 f3 Nd2 Kf4 Kd4 Kg3 Ke5 b1R Kf5 f2 Kg6 c3 e5 b4 d4 b3 d5 c2 d6 h4 Ra3 h3 Ngf3 b2 Qe2 Qg5+ Kf7 Na6 d8R Nh6+ Ke8 Nb4 Nc4 Re1 Bf7 f1Q e6 Nf5 e7 Rh4 Bg6 Re4 Kf7 Nh4 Re3 Rg4 Kg8 Bf5 Bd2 c1B d7 Ra6 Ra8 Re6 Kh7 Ree4 Ra6 Be6 Rd3 Qf2 Rf1 h1B Qe3 h2 Nfe5+ Bf3 Ra8 h1Q Nd6 Qf4 Ndf7 Kh2 Rc3 Bd1 Nd8 Q2g3 Rcc8 Qf6 Rf3 Qgf4 Nec6 Q4f5 Qd4 R4e2 Rf1 Qa5 Be4 Nc2 Nb8 Qb5 Bh6 Be3 Ra5 Bf2 Bg2 Qc5 Bh3 Qa8 Bd2 Qc7 Bb4 Qce5 Qb6 Na3 e8B B8c5 Bg6 Bce3 Be4 Bd4 Bd5 Nc2 Bd6 Rc1 Qc5 b1Q Ba2 Qb4 Qa7 Rb1 Bc7 Rb3 Bb1
q2nB1r1/1b1n1n1K/bqkR3N/QN1RP1rB/2P3nn/P1bNp3/3q3B/8 b - - 0 1 illegal: No possible last move, all moves rejected
1N1qR2R/n3Bn2/R1q1r1pP/6PN/3k2br/1rb1Q2b/5n1P/B1Knn2N b - - 0 1 illegal: Other
2R5/2Br1n2/bK1bp1N1/3R1q1B/Rbk2rP1/Pq2PnbN/qn2b1B1/Q7 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 fxg6 Qd3 g5 Qd1 g4 h3 g5 Bg2 g3 Bf1 g4 Na3 g2 Nb1 g3 Bb2 Qa5 Ba3 Qf5 Bc1 Qg4 hxg4 Ra6 Bd2 Ra5 Bc1 Ra8 Kd2 Kf7 Kd3 Ke6 Kc4 h5 Kc5 d5 c4 b5 f4 b3 a3 b2 e3 h4 Nc3 b1Q Kb6 h3 c5 h2 c6 b4 c7 b3 Ne4 d3 Qd2 b2 Ra2 d4 f5+ Kd5 f6 e6 f7 Ba6 c8B Kc4 Nf2 Rh7 Bd7 Nh6 Kc7 Nc6 Nfh3 Ne5 Nf2 Bb4 f8R Nhf7 Qe2 Nf3 Ra1 Qa2 Rb8 b1Q Bc8 Qbb3 Ngh3 g1B Bb7 g2 Kb6 Rg7 Rh8 Rf8 Nf4 Rh7 N2h3 Bf2 Rb1 g1B Qd2 Bg3 Qe1 Rg7 Bg2 d2 Ba8 d1N Ng6 d3 Bb2 d2 Be5 Nb2 Bc7 d1B Bc6 Be2 Be8 B1f2 Rh5 Bgd6 Rd5 Bfg3 Rf1 h1Q Rc1+ Qc3 Rf2 Qf1 Rc2 Rh7 Qa1 Qfb1 Rc1 Qf5 Rff1 Nh8 Rfd1 Rd7 Ra5 Rf6 Rdd5 Nf7 Rc2 Qd3 Ra4 Rf4 Rc1 Qf5 Nf8 Nd8 Bh5 Nf7 Ng6 Bb7 Ra8 Ba6 Rc8 Qcc2 Rcd1 Qcb1 Ra5 Qb3 Ra4 Q1a2 Rd5
1n1Kn1nr/4R2b/PN1bprb1/1q1PBk2/6rQ/PR2r3/B7/1NqB1r1R b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 dxc4 Na3 g5 Nb1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 b5 Kg5 c5 d4 h5 g4 h3 f4 c3 a6 b4 a3 c4 Bg2 e3 Qf3 e2 Bf1 e1R Qg2 h4 Qf2 c2 Qg2 b3 Be3 c1R Nc3 b2 Nd5 b1B Qf2 h2 Nb6 c3 Nf3 c2 Be2 h3 Nd2 Qe8 Bd1 Qb5+ Kg6 Rg1 g5 Rg4 Qh4 Bb7 Re1 h1N Re2 h2 f5+ Kd6 Kf7 Be4 g6 Nf2 f6 h1R g7 Bh7 Bh6 Rf1 Re5 Ne4 Bf4 Ra7 Bg3 Rd7 Ke8 Rf3 f7 Rf6 Bh2 Rc7+ Kd8 Rc3 Bf4 Re3 Bg3 Rh6 Bh2 Nef6 Bg3 Ne8 Bf4 Ba2 Nb1 Rf6 Bg3 Bc4 Bh2 Bcd3 Bf4 Nh6 g8B Bdg6 Bh2 Qb4 Rb5+ Ke6 Be5 Qb3 Rb4 Kf5 Rb5 Qa4 Rb4 Qb5 Rb3 Bg7 f8R e6 Rf7 Bf8 d5 Bb4 Re7 Bd6 Bf7 Nc7+ Be8 Ng8 Bc6 Ne8 Bd7 Qa4 Bb5 Qb4 Bc4 Qb5 Bf3 Rf1 Bd1 c1Q Ra2 Rh1 Rh2 Rf1 Rh1 Bb4 Rc3 Bc5 Ba2 Bd6 Rb3
Q3Nb2/2Nq1r1p/2qq1P1n/B2B2B1/1kN3Rr/bPR1r1P1/7b/1K1b2nb b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 f4 Ke7 c4 Kd6 Kc2 Kc5 b3 a5 f5 d5 b6 e3 b7 e2 f6 e1R Kb2 a4 Ka2 d3 Be3+ d4 Bd2 e4 Na3 h3 Bf4 d2 Bh2 d3 Be5 e3 Kb1 h2 Ne2 Bd6 Ka2 Nh6 Rg1 h1Q Kb2 Rf8 Nd4 e2 Ra2 Rf7 Qc1 d1Q Bh2 d2 Qa1 Nc6 b8B Qd7 Bc7 Bb7 Bf4 Ne5 Ndb5 Nf3 Bg5 Bh2 g3 Re8 Bg2 Re4 Rf1 Ng1 Rf3 Rh4 Rc3 Rf1 Ba5 Rf3 Bd8 Re3 Bb6+ Kb4 c5 Bc6 Ba7 Ka5 Bf3 Ba8 c6 Bb7 c7 e1B c8N Bd5 Rc1 Ba8 Nc7 Bb7 Nc2 a3+ Kb1 Ba8 Bc6 Qhd5 Nd6 Q1f3 Nc8 d1B Nd6 Bb4 Nde8 Bf8 Bd4 Q5d6 Bb7 Re5 Ne3 Qe4+ Rac2 Kb4 Bb6 Qh1 Rf2 Ree7 Nc4 Re3 Rc3 a2+ Kc1 Qhd5 Rf4 Q5c5 Bg2 Be4 Rg4 Qcc6 Bf1 Bh1 Bg2 Q7e6 Bd5 Qed7 Qb1 a1B Qa2 Bb2+ Kb1 Bc1 Qa8 Ba3 Ba5+
3Nn2K/NrBq1P1b/B2R1PQ1/4qk2/q2rR3/bq6/p1BP2nN/r2q3b b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 dxc4 h5 f5 exf5 g6 Qe2 gxh5 Qd1 h4 Ke2 Kd7 Kf3 h5 Ke4 e5 g4 a5 b4 c5 f4 c3 b5 c2 g5 a3 g6 h3 f6 Ke6 b6 h2 b7 c4 f7 h4 g7 a4 Qf3 h3 Qe2 a2 Bg2 c3 Nf3 a3 Qf1 Qd7 Qf2 Ra4+ Qd4 Na6 b8N Nf6+ Ke3 e4 g8B Kf5 Qd3 Nd5+ Ke2 Ne3 Bb2 c1Q Qc2 Nc7 Bf1 Ng2 Nc6 Ne8 Nd8 Rd4 Rg1 h1Q Nh2 Rh6 Bh7+ Rg6 Kf2 Qd1 Ba6 Qa4 Qd3 c2 Nc3 c1Q Re1 Qdb3 Nb5 Qc6 Na7 Qd7 Bc3 Bb7 Ba5 Ba8 Rab1 a1R Bc7 a2 Rbc1 Bd5 Rc6 Ba3 Rd6 Bc6 Qg3 e3+ Ke2 Bb5+ Kf3 Bd3 Re2 Qc1 Re1 Qcc4 Re2 Qce6 Re1 e2 Qg4+ Kf6 f5 Rh6 Qg6+ Ke5 Rc1 e1Q Rc4 Qed1+ Kg3 Rhh4 f6 Qf5 Rc1 Rb4 Rc4 Rb7 Rb4 Rd4 Rc4 Nf4 Kh4 Qe4 Kg5 Ng2 Kh6 Kf4 Bg8 Qe5 Kh7 Be4 Kh8 Bd3 Nf1 h2 Bh7 h1B Nh2 Be2 Qg8 Bf1 Bb1 Bd3 Bc2 Bh7 Qg6 Bc5 Rc3 Bb4 Re3 Ba3 Qd3 Kg5 Re4 Kg6 Qg3+ Kf5 Qg6+
2RRq1n1/bN2P3/1Br1r1P1/4k1n1/2Qr1rnq/rRP4b/p5BN/1b2N2K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kf2 Ke7 b4 Ke6 g4 f5 Kg2 d5 e4 a5 b6 h5 b5 a4 e5 d3 g5 a3 c3 f3+ Kh2 f4 g6 a2 b7 h3 b6 d2 Qe1 d1R Qe2 f2 Nd2 f3 Qd3 h4 Nc4 d4 Bg2 f1B Nb2 f2 Nf3 Nc6 b8R Ra3 b7 Bc5 Rb1 Qe8 Rg1 Ba7 Bf4 Nd8 Bg3 Nf7 Qe2 d3 Qe4 d2 Ra1 Ng5 Nc4 Re1 Na5 d1R Qb4 Rd4 Kh1 h2 Rb1 Bd3 Rb3 f1R Bf2 Bb1 Qc4+ Kf5 e6 Rh5 e7 Re6 Ne1 Ke5 Bg3+ Rff4 Bf2 Rc6 Rf1 Bh3 Rc8 Rd8 b8N Be6 Qe4+ Kf6 Nd3 Nf7 Bb6 Re5 Nb7 Ng5 Rd1 Bf5 Qe2 Ree6 Ne1 Rd7 Qc4 Ke5 Bf1 Rd8 Kg2 h1N Rd6 h3+ Kh2 Nf2 Kg1 h2+ Kg2 Bg4 Nd7+ Kf5 Ne5 h1Q+ Kg3 Qh4+ Kg2 Rd7 N5f3 Bh3+ Kh2 Kf6 Bg2 Ng4+ Kh1 Rd8 Nh2 Ke5 Rd3 Rd7 Rf3 Rd1 Rd3 Rd2 Rd7 Rdd4 Rdd8
1qn2N2/4p1rB/bN3q2/K2P2qP/1B4Pn/b1N1bq1r/1B2r1QR/2R1qk2 b - - 0 1 illegal: No proof kernel
7b/1PN2qbp/K2R1Nk1/3Rn3/2nB1bB1/1Pbn1r1P/Qb3qrR/5qB1 b - - 0 1 legal: proof: e4 f5 a4 b5 g4 fxg4 e5 bxa4 b3 Ba6 e6 Bc4 b4 Bb3 cxb3 dxe6 Ba3 e5 Bc1 e4 Ke2 Kf7 d4 e5 f4 a5 d5 c5 d6 g5 f5 a3 d7 c4 b5 a4 h3 e3 b6 a2 f6 a3 b7 c3 Kd3 c2 Kc4 e4 Kb5 e2 Nd2 e1N Ndf3 g3 Rh2 g2 Be3 c1B Qd5+ Kg6 f7 g4 Bc5 g3 Bc4 e3 Qd4 e2 Qc3 Qf6 d8R Nh6 Qb2 Bf4 Rd7 Bg7 f8B Qf7 Qc2+ Nd3 Qd1 e1B Qd2 Ng4 Rh1 Nc6 Bfd6 Rag8 Bd4 Na5 Ne2 g1Q Ka6 g2 Ng3 Nge5 Ng5 Qf2 Be6 g1Q Rd1 a1B N3e4 a2 Nf6 Bb2 B6c5 a1B Bg4 Qgf1 Rd6 Nac4 Rh2 Rf8 Qc2 Rhg8 Ne6 Bec3 Nc7 Bh8 Qb1 Bb4 Ka7 Bfc1 Nb5 Qe6 Be2 Q2e1 Nc7 Nd7 Be3 Kf7 Bf4 B2a3 Bg4 Ndb2 Be2 Rg2 R1d5 Nd3 Be5 Kg6 Bg1 Qef2+ Ka6 Bd4 Ng4 Bab2 Bf6 Bb4c3 Bg5 Bdg7 Be3 Nde5 Qa2 Rf5 Nf6 Qf7 Bg4 Rf3 Bb6 Bf4 Bd4
8/BpNK4/n3r1bP/R3k1N1/1Q1b3R/rPR1nqn1/P1rb2r1/B2q1Nr1 b - - 0 1 illegal: No extended proof kernel
2kn1q2/n1n2B1n/n1r1QP1N/Rr1bR1b1/KNn2B1B/P2n4/1pP4b/6R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 b5 g4 d5 f4 Kd7 f6 h5 f7 e5 g5 e4 g6 d3 a3 e3+ Ke1 d4 f5 h3 g7 e2 Kd2 h2 f6 h4 Qe1 b3 Nh3 b4 Ng5 b2 Qf2 e1B+ Kd1 h3 Be2 b3 Nh7 d2 Qf4 Ra6 Qf1 Bd6 f8B Bb7 Bc4 Rc6 Be7 Nh6 g8R Nf7 Nc3 b1N Rf8 b2 Ba2 Kc8 Nd5 Bh4 Bc4 Na6 Nf4 Bg5 Rg8 Qf8 Rg1 h1N Qf2 h2 Bf1 Nd8 Qg3 Nf2+ Ke2 d1N Be3 h1N Nd5 Nd3 Bf4 Ne3 Nb4 Nc4 Qe1 Ng3+ Kd1 Bc7 Bc5 Ne4 Be2 Bb8 Bh5 Be5 Bf7 Ba8 Bc1 Bh2 Bd6 Bb7 Bg3 Ba8 Bcf4 Bb7 Ke2 Nbc3+ Kf1 Nb5 Ke2 Na7 Bh4 Rb6 Rg6 Bd5 Rh6 Rc6 Rh5 Nc1+ Kd1 d3 Qe2 d2 Qe3 Nec5 Qe6+ Nd7 Re1 Nd3 Re5 Rg8 Ke2 d1N Rb1 Bh6 Ng5 Nde3 Rg1 Rg6 Ne4 Rg4 Ng3 Bg5 Nf5 Rg3 Nh6 Rf3 Bfg3 Rf5 Bf4 Qg7 Qe7 Nf8 Qe8 Nh7 Qg8 Nd6 Kd2 Nec4+ Kc3 Ndb5+ Kb3 Nbc7 Qe8 Qf8 Ka4 Bf3 Ra5 Rb5 Qe2 Bd5 Qe6+ Kb8 Bd2 Be3 Re5 Bg5 Bf4 Kb7 Qe8 Kc8 Qe6+
6n1/4b1N1/2bN1qb1/2K1n1q1/2P2B1p/Rb3P1P/kq2r1B1/rRQn1BrN b - - 0 1 illegal: No possible last move, all moves rejected
2BR3n/2rR2nk/1K2QP2/1NPqN2q/b2RB2b/r2pBn2/1r3P2/2q3rb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 Kf7 Kd3 Kg7 Kc4 b5+ Kc5 h5 c4 e5+ Kd5 d3 g4 b3 a4 b4 c5 e4 a5 b2 a6 b3 a7 e3 g5 h3 g6 d2 Be2 h4 Kd4 d5 Ra2 h2 Bb5 e2 Na3 e1N Bd3 b1R Be4 b2 Qe2 d1Q+ Bd3 h3 Qe8 Rh7 Qa4 Nh6 Qc6 Nd7 Nc4 Nf3+ Kc3 d4+ Kb4 Nf6 Kb5 Nf7 Qe6 Bd7+ Qc6 Ne8 Ra4 Nh8 Be4 d3 Ne5 Be7 Rd4 Bh4 Be3 Qc1 f6+ Kg8 Ka6 Ng7 Ne2 Qe8 Qc8 Ba4 Qe6+ Qf7 Re1 h1B Nc3 h2 Nb5 Ra1 Bb7 b1R Bc8 Rb2 Kb6 Ra3 Rg1 Ra1 Rgg4 Ra3 Rd7 Ra1 Qe7 Qd5 Rd4 Ra3 Ka5 Rb8 a8B Rb7 Ka6 Rc7 Kb6 Rh5 Bc6 Rg5 B6b7 Rg1 Ba8 Ne6 g7 Kh7 g8R+ Ng7 Bc6 Bg2 Re8 h1Q Red8 Qh3 Qd6 Bh1 Qe6 Qg4 B6b7 Qh5 Ng4 Qdf5 Ne5 Qfg5 Be4+ Qf5 Ng6 Qd5 Ne5+
2b3Qb/rb3pR1/q1kP4/n3n2P/5R1N/1rqr1q2/3NBPn1/B1R1b1KB b - - 0 1 legal: proof: e4 b5 b4 h5 a4 d5 g3 dxe4 g4 hxg4 axb5 c5 Bc4 cxb4 Be2 Nf6 Bf1 Ng8 h4 Kd7 d4 e5 c4 g5 d5 a5 h5 g3 c5 e3 d6 b3 b6 b2 b7 g2 Qd4 a4 Nd2 b1B Qb2 a3 Rh4 e2 Qd4 g4 Qe3 a2 Qf4 e4 Nc4 g3 Qf3 Nf6 Na3 Qb6 Qg4+ Kc6 Qh3 Qa6 Rf4 Bg7 Qf5 Nfd7 Qg4 Ne5 Bb2 Ra7 Nf3 g1R Qh3 g2 Kd2 e1N Nc4 e3+ Ke2 Be4 Rc1 a1Q Nh4 Rd8 Qg3 Bh8 Bd4 Qc3 Qg4 Rh1 Qg8 g1Q Bg2 Rh3 Bh1 Qg3 Kf1 Bg2+ Kg1 e2 Nd2 Qcf3 Ba1 Qc3 Qg5 Qgf3 Qg7 Rg8 Qh7 Rgg3 Qg8 Nbd7 b8R Nc4 Rb4 Na5 Rg4 Ne5 Rbf4 Qd5 Rg6 Rd3 Rg7 Be4 Ndf3 Ng2 Nd2 Kb5 c6 e1B c7 Kc6 Rg5 Qb3 Rg7 Qd1 Rg6 Qf3 Rg7 Bb7 c8B Bf5 Be6 Rg3 Bb3 Bfc8 Bd1 Rg4 Rf5 Rb4 Be2 Rb3 Rf4
QNb2K2/b1qP4/3P1nr1/B4p1P/3N2B1/nB1Rq1nr/2NqbRk1/3r3r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Ke5 d4+ Ke4 a5 c5 a6 f5 e3 b5 a7 g5 d6 c4 d7 c3 d5 b3 Na3 b2 Rh3 b1R Rf3 b4 Bb2 g3+ Kg2 b3 Kh3 g2 Qd2 c2 Bg7 c1Q Qa2 b2 Bc3 Nc6 Ba5 Nf6 Nc2 Bc5 d6 Qd2 Bc4 Qc7 Ne2 g1Q Bb3 Rd1 Ned4 b1N h5 g4+ Kh4 g3 Kg5 g2 Kg6 Rg8+ Kf7 Rg6 Qa4 Na3 Kf8 Qgf2 Rb1 g1R Rb2 Rb8 a8B Ba7 Bb7 Rgf1 Ba6 Rh1 Be2 Rh3 Rb1 Rdh1 Rg1 Rb5 Rgg3 Rd5 Bd1 Nb8 Qc6 Na6 Qa8 Nc5 Be2 Ke5 e4 Qfe3 Rf2 f3 Bd1 Kf4 e5 Nd3 e6 Nc5 e7 Nce4 Rf1 f2 e8N Qde1 Bg4 Q1d2 Rd1 f1B Rf3+ Ke5 Ng7 Ng3 Nge6 Ke4 Nc6 Rd3 Ned4 Be2 Rdf1 Qe1 R1f2 Rd1 Rf1 Q3d2 Rd3 Qf2 Nb8+ Kf4 Bf3 Qfe3 Rf2 Nge4 Rf1 Kg3 Bg4 Kg2 Rf3 Ng3 Rf2+
1N1Q2r1/r1RPr2P/1q2n1b1/3K4/1B1n1k2/b1PR1nq1/1N2p3/1Bb1BrqN b - - 0 1 illegal: No proof kernel
b4Q2/1NKNN1rq/1r1R2R1/1Pn1PB2/1p6/nrP3n1/nB3b1n/2kbR1n1 b - - 0 1 illegal: No proof kernel
B2N1NnQ/3PR1rn/2rP3P/qr1n1k2/n1R2bp1/K1bb3n/1N1R1n2/2B5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 d4 Kd7 Kd2 g5 Kc2 f5 Kb3 b5 a4 c5 e4 f3 h4 g3 d6 Ke6 h5 f4 e5 g2 h6 f2 a5 c4+ Kb2 g4 d5+ Kf5 a6 c3+ Kb3 f3 e6 c2 e7 Nd7 e8R Rh7 a7 Qa5 Nh3 g1N Kb2 b3 Na3 b4 Re1 Ndf6 d7 Ba6 d6 Bd3 Bg2 f1N Ng5 f2 Qe2 Rc8 a8N Ng3 Bb7 f1N Qe8 Rc6 Nf7 Nge4 Qc8 Rg7 Bd2 Nh3 Nb1 Ne3 Ra2 Nh7 Na3 Nef2 Bc1 Nd5 Nc7 Be7 Re4 Bf6+ Rd4 Be5 Ba8 Bf4 Nc4 Bd2 Ra4 Be1 Ka1 b2+ Ka2 b1N Nd8 b3+ Kb2 Bd2 Nce6 Nbc3 Ka3 b2 Re1 b1R Nf8 Rb5 Re7 Bf4 Nb2 Be5 Bd2 c1B Bg5 Bcf4 Qb8 Qb6 Rac4 Na4 Qc8 Qa5 Qb8 Bg3 Bc1 Bgf4 Qc8 Be2 Rd2 Bd3 Qb8 Bd4 Qa7 Bc3 Qd4 Rg6 Qh8 Rg5 Ree2 Rg7 Re7
B3Qn2/nrNqBnK1/b3R3/1q4bP/Pr3r1P/2p2N2/1n4RB/nkn2N2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 exf4 b4 axb4 Qc2 d5 Qd1 dxc4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 g5 h4 b5 a4 g4 d3 c3 Rh2 b3 d4+ Kb4 d5 c5 d6 c2 d7 g3 Qd6 g2 Nh3 g1R Na3 Kc3 Nc4 f3 Ng5 b2 Nb6 b1Q Rh3 b4 Bb5 b3 Rh2 c4 Qc5 f4 Ra2 f2 Rh1 f1N Kf5 b2 Kg6 f3 e5 f2 e6 Bh6 e7 Rh7 e8N Ne3 Qd6 f1N Qc5 Ba6 Ng7 Nd1 Rh2 Rg4 Rd2 Rf4 Qd6 Nfe3 N5e6 Bg5 Nc8 Nh6 Nc7 Nf7 Nb6 Kb3 Qe5 c3 Bf1 Qc8 d8B Nd7 Qe7 Rb8 Nbd5 Rbb4 Re2 Qb7 Bd2 c1N+ Nf5 Nc2 Nde3 Na1 Qe8 Qb5 Bh3 Q1d3 Nf1 Kc2 Re6 Kb1 Be7 Nd6 Be3 Qdd5 Bf6 Kc2 Bg1 Re7 Bg2 Nf7 Bh2 Nf8+ Kg7 Qd2 Ba8 Qdd3 Nd5 Rb7 Kg8 Qd7 Ra3 b1N Be7 Qc4 Rb3 Na3 Kg7 Nb5 Nc7 Na7 Ra3 Kb1 Ra2 Qe2 Nd4 Qeb5 Rg2 Nb2 Nf3
r1B2nqR/3qnq2/r3N1bN/1pq1N2P/1R6/nkP1PQ2/4Rb2/K1B2qq1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kd2 Ke7 h4 Kd6 a4 Kd5 a5 Kc4 c3 g5 Kc2 b5 Kb2 d5 a6 f5 a7 d3 h6 d2 h7 f3 h5 f2 Qe1 d1Q Ra6 d4 Bd2 g4 Bh3 f1Q Ra1 g3 Ra2 d3 Bc1 d2 Nf3 g2 Ng1 f4 Nf3 g1Q Ng5 b3 Qg3 f3 Bg4 f2 Nf3 Nd7 Rh4 Ne7 Ka3 b2 Nd4 Qde1 Qe3 d1Q Bf5 Bb7 Qh3 Be4 Qf3 Rg8 h8R Rg6 Rf4 Bh6 Rg4 Nf8 Bc8 Be3 Nf5 Q1d7 Nh6 Qed2 Rh4 Q2d4 Rf4 Rd6 Rh4 Bg6 Nd2+ Kc5 Rg4 b1N+ Kb2 Na3 Nc4 Ra6 Ne5 Qc4 Re4 Q8c7 Ka1 Qg8 Rb2 Kd5 Rbb4 Qc5 Qh1 Qe1 Qh3 f1Q Qf3 Bf2 Re3+ Kd6 Ree4 Qd2 Re3 Qdd5 Ree4 Qdf7 Re3 Rb8 a8N Ke6 Nc7+ Kd6 Ne6 Rba8 Ree4 Kd5 e3 Qca7 Rb2 Qd4 Nd3 Kc4 Re2 Kb3 Ne5 Qc5 Rb4+
n1bR1n2/rR4R1/kN4Pr/4r2p/2bQ4/B1r1nq1P/1NP2rN1/1qrB3K b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 axb4 f6 gxf6 Nd2 f5 Nb1 f4 e3 d5 Bc4 d3 Bb2 d2+ Kf2 d4 Bf1 d3 Ba3 Bg7 Bc1 Bd4 exd4 Qa5 Bb2 Qd5 Bc1 Qd8 a4 Kd7 g4 Kc6 Kg2 Kb6 h3 e5 g5 f5 g6 h5 d5 f3+ Kh2 b3 d6 f2 d7 f4 a5+ Ka6 Qg4 d1N Bb2 b5 Bg2 f1R Nc3 d2 Qe2 f3 Ra4 e4 Ra2 f2 Na4 e3 Qf3 b4 Nb6 e2 Qe3 e1R Nd5 Nf6 Nc3 Nh7 Qf3 Ne3 Qd1 Qf6 d8R Ra7 Re8 Nf8 Rd8 Rh6 Nge2 Qf3 Nf4 Nbd7 Na4 Nb6 Ba3 Na8 Nb2 Re2 Qa1 d1R Rg1 Rd4 Kh1 Rc4 Qd1 Rc5 Qd4 Rc3 Ra1 Rc1 Rf1 Rce1 Rb1 Rc1 Rd1 f1B Rd7 Rd2 Rg7 Rf2 Rd2 Bc4+ Rd1 Qd5 Bf3 Qf5 Ng2 Qg4 Na4 b2 Be2 b3 Bf3 Nf1 Rd3 Re1 Bd1 Re5 Rd2 Qf3 Rd3 Kb5 a6 Ne3 Rd2 Rb7 a7 Ka6 Qh4 Rf7 Rd8 Rb7 Qd4 Rbe7 Ra1 b1R Nb2 Rc1 Rb1 Nc7 Nd3 b2 a8N Rf7 Nb6 Na8 Ra1 b1Q Nb2 Qa2 Rb1 Ra7 Nd3 Qa1 Rb5 Qa2 Nb2 Qb1 Nd5 Ng4 Rbb7 Ne3 Nb6
rb6/1r1br3/2P2B2/r1R1NBn1/2rR1q1N/1P2kn2/p1P2Q1b/BnK1bR2 b - - 0 1 legal: proof: e4 c5 d4 g5 dxc5 f5 a4 fxe4 h4 gxh4 Nf3 b5 Ng1 bxa4 Kd2 Kf7 g4 Ke6 f4 Kd5 b3 Kd4 c6 d5 f5 h5 f6 a5 f7 e5 g5 a3 g6 a4 g7 h3 Be2 h4 Bd3 a2 Qg4 h2 Bb5 a3 Ba6 h3 Bb7 Qc7 Qd7 e3+ Kd1 e2+ Kd2 e1B+ Kd1 e4 Bd2 e3 Qg4+ Qf4 Qh4 e2+ Kc1 Nf6 g8R Nbd7 Ba6 Bd6 f8B Rh5 Rg5 Ne5 Rf5 Ne4 Rf6 Nf3 Qg3 Bd7 Nc3 Bb8 Rb1 a1B Bb7 a2 Rb2 Neg5 Nd1 Ke4 Rg6 d4 Qg2 d3 Rb1 Bae5 Ne3 Rh4 Bc3 d2+ Kb2 d1N+ Kc1 Bed6 Ba1 Nc3 Qf2 Ra5 Bg7 Rh8 Rb2 Nb1 Bf6 Rc8 Rh6 Rc7 Bc8 Rb7 Be7 Bdc7 Rd6 Ra8 Rd2 Ra5 Nc4 Bd6 Qh4 Bdc7 Ne5 Ke3 Rd6 Nd4 Nd3 Bg3 Nf2 Be6 Qh5 e1R+ Qd1 Qe4 Rd5 Kf4 Re5 Nc3 Kd2 Ba7 Bd7 Re3 Be8 Bd7 Bf6 Qf5 Rd5 Re7 Qe1 Bd6 Rb1 Be5 Rd1 Nb1+ Kc1 Bd6 Bh8 Be5 Qf1 Ke3 Bb2 Bef4 Nd3 Be1 Nf3 Qg4 Rg1 h1R Nde5 h2 Ba1 Qh4 Ng6 Qg3 Nfe5 Ndf3 Rc5 Qh4 Rg3 Qg4 Rh3 Rg1 Bf6 h1R Rg3 Rh8 Nh4 Rg2 Bh5 Ra8 Bg6 Bb8 Bf5 Rd2 Rg2 Rd4 Rf2 Rc4 Rd4 Bh2 Qg2 Qe4 Rf1 Qf4 Qf2+
1R6/r4NQ1/nPb1qk2/1r4N1/1rnb1b1K/P1b2RP1/3bN1Bp/B3qRb1 b - - 0 1 illegal: No proof kernel
5Q1n/PK3b1N/2n1pBr1/2P1qbRn/1bNP4/RBn5/1Bn1rrb1/5k1N b - - 0 1 illegal: No proof kernel
6r1/N2bN2b/K1B5/2Q2k2/2Rp1B1B/b3PqRn/b1rP1NPr/rqb3n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b3 e5 b4 exf4 axb5 c5 Ra3 cxb4 Ra2 Bh6 Ra1 Bf8 c4 Ke7 c5 Ke6 b6 h5 e3 f5 Ke2 a5 Kd3 d5 c6 b3 b7 f3 c7 d4 Kc4 b2 Kb5 a4 Bd3 h3 Ne2 f2 Ra3 f1Q Ra2 h2 Qc2 a3 Qb3+ Qd5+ Kb6 h4 Bb5 f4 Nec3 h3 Ba4 f3 Ne2 f2 Bb5 Nf6 Qc2 Ne4 Qc4 Bd7 c8N Kf5 Rg1 h1R Qc2 h2 Bc6 Rg8 Qb3 Ng5 Ba4 Nc6 b8B Qf3 Be5 Nh3 Bf4 Ne5 Nbc3 b1B Na7 Rc8 Rc2 a2 Nd1 a1B Qd5 Ba3 Ka6 Ba2 Rc4 B1b2 Nec3 Qd3 Re1 f1B Bc6 Qb1 Qc5 Bd3 Nf2 Rf1 Re2 h1R Nd5 Rh2 Re1 Qg4 Rd1 Nf3 Re1 Rfh1 Rd1 Nfg1 Rf1 Ba1 Bb2 Qf3 Bc3 Bc1 Ba5 Bab2 Bd8 Ba3 Bh4 Rb8 Bfg5 Rb2 Bf4 Rc2 Ne4 Qh5 Rf3 Qg4 Rg3 Qf3 Qb5 Ke6 Nf2 Bh7 Qb4 Kf5 Qc5 Bcb2 Ne4 Qbd1 Be5 Ne2 Bhf6 Rf1 Bf4 Neg1 Bh4 Qa1 Ra4 Rb1 Rc4 Bc1 Nf2 Qb2 Be5 Ra1 Bf4 Qb1 Ne7+
1q3N2/bR1nB1b1/3nr1b1/P2brpN1/1q1k4/N1P3QB/1RK1n2P/bR4n1 b - - 0 1 illegal: No possible last move, all moves rejected
rN5b/R1Rqq3/1b3q1p/1kbnPPNP/4rQ2/B2K4/1NB1n1bb/q6B b - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 d5 c4 Kd7 h4 g5 e4 a5 f4 g3 h5 b3 f5 g2 b6 Kc6 c5 a4 b7 h6 Bd3 g4 Nf3 g1B Bc4 d3 Nc3 g3 Na2 g2 Rh3 d4 Rh2 b2 Rh3 b1Q Nh2 a3 Ng4 Qe7 Nc3 a2 Ne2 Nf6 Ba6 Qb6 Re3 Bh2 Rg3 g1B Nc3 Nd5 Qf1 Rg8 Nf6 Rg4 Bb2 Rf4 Rc1 a1B Na4 Qbd8 Ba3 Bb2 Kd1 d2 Ke2 Qdd7 Kd3 d1Q+ Kc4 d3 Rg7 d2 Nh7 Qdd6 Kd3 Qdf6 Ng5 Bgd4 Rc4 Qa1 Rc2 Bbc3 Nb2 Be3 Qc1 d1Q+ Qd2 Bcd4 e5 Re4 Rh7 Bg7 Bc4 Bd7 Bb3 Kb5 c6 Bb6 c7 Bec5 c8B Nc6 b8N Nd4 Bb7 Bh8 Rc4 Be8 Bc2 Ne2 Ra4 Bc6 Ra7 Qe1 Rf7 Qh4 Qf4 Qd7 Rf8 Qfe7 Rc8 Qf6 Rc7 Qfe7 Nf3 Qhf6 Ng5 Ra4 Nf7 Ne3+ Qd4 Bh1 Bg2 Nd5 Qf4 Re4 Bf3 Bg2 Ng5 Bh3 Bh1 Bf1 Nc4 Bg2 Nb2
4n1b1/3b4/k1QPrNbn/b1q2P1n/2B4q/1n1K1bR1/rp1N1NP1/R2B2B1 b - - 0 1 illegal: No possible last move
b2B1q1b/3q1R1B/BbPPn1K1/1P1pb3/1nk3n1/rN3nRb/2r1R1N1/2Q5 b - - 0 1 illegal: No proof kernel
b2R4/2rnB3/KpQrPB2/4NR2/2nrPR1q/4n3/Bbk1nP2/q2rNn2 b - - 0 1 illegal: No proof kernel
Nn3qR1/3N1p2/1Q1R1b1k/b4Pb1/nnPq1B2/KBnr2bP/1BNn4/2r5 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 h5 e4 hxg4 Bb2 d5 Bh3 d3 Bf1 d4 Ba3 Be6 Bc1 Bd5 exd5 Rh4 Qf3 Rh3 Qd1 Rh8 Kd2 b5 a4 e5 c4 g5 f4 e4 a5 e3+ Ke1 d2+ Ke2 b3 Kd3 e2 a6 e1B a7 b2 Kc2 b4 Kb3 d3 h3 g3 f5 g4 d6 g2 Rh2 g3 Qh5 d1N Qh6 d2 Qh7 Nf6 Ka2 b3+ Ka3 Nd5 Qh5 Bg7 d7+ Kf8 Qe2 Bf6 Nc3 Kg7 Qg4+ Kh6 Ka4 b1N Ra2 b2 Nge2 g1B Qf3 g2 Ne4 Bg3 Nc5 Be3 Qf2 g1B Rg2 Beg5 Nd4 Nbc3+ Ka3 Na4 Nc2 Qf8 d8B N1c3 Bd3 d1Q Bc7 Nb4 Nd7 Qg4 Be5 Qd4 Bef4 Rg8 Be2 Rg7 Bd1 b1N+ Kb3 Nd2+ Ka3 Rg8 Qe3 B1f2 Bb2 Be1 Rg1 N8a6 Rg2 Rd8 a8N Nb8 Qe6 Re8 Qb6 Re3 Na1 Rd3 Bb3 Qfc5 Nc2 Re8 Ra1 Qf8 Rd1 Ree3 Re2 Rf3 Re8 Rf1 Be3 Bc7 Bf4 Bg3 Qd6 Ba5 Qb6 Qfc5 Rg8 Qf8 Re1 Rh1 Re6 Rc1 Rd6
4QBn1/2N1p1r1/r1P5/Nb1RBn1r/1K5n/1n2N3/1qPBPk2/n1Rqr1b1 b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 f5 g5 c5 dxc5 f4 g6 f3 Bg2 fxg2 Bb2 hxg6 Ba3 g5 Bc1 g4 Kd2 Kf7 f4 Kf6 h4 Kf5 a4 Ke4 f5 d5 a5 g5 c6 b5 a6 d4 a7 g3 f6 b3 h5 b4 f7 g4 h6 b2 h7 d3 Ra6 b3 Kc3 d2 Ra4+ Ke3 Rd4 Kf2 Kb4 Na6+ Kc4 Bh6 f8B Nc5 Kb4 Ba6 Ka3 Bb5 Rd3 Be3 Nf3 g1N Nh4 g2 Kb4 g3 Rh3 Nf3 Rd5 g1R Rd3 g2 Rg3 Re1 Rg6 g1R Na3 b1Q Rg3 b2 Rg7 Nb3 Rg3 Na1 Ng2 Nh4 Nc4 Qa2 Rg6 b1N Na5 Bb6 Rgd6 Qb2+ Rb3 Qd7 Ne3 Rg7 Rd5 Bc7 Rh5 Bh2 Rg5 Bg1 Rd5 Rb8 a8N Rb6 Nc7 Ra6 Na8 Nc3 Nc7 Ne4 Ne6 Nc5 Nc7 Qf6 Rb1 Ncb3 Bb2 Qd8 Be5 Qd7 Qc1 d1N Qd2 Qd8 Rc1 Qd7 Bf4 Qb2 Qd3 Qd8 Qg6 Qd7 Qe8 Qd8 Ng2 Ne3 Bh6 Nef5 Ne3 Rg5 Re5 Qd1 Rd5 Rh5 Bf4 Nf6 Bg5 Rg8 h8B Rg7 Bf4 Ng8 Be5 Rgh7 Bc3 Rf7 Bhe5 Rg7 Bd2
1n3bRk/1rP3rq/4bPBq/2R3Nr/7N/KnQ1rn1n/1B1PpnB1/2N5 b - - 0 1 illegal: No possible last move, all moves rejected
3nBK2/P6p/3N3R/B1r1PnQ1/Rq4q1/1r2N3/1qP1kr1q/rbbRq2B b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 f5 e4 b5 a4 d5 g4 d3 a5 f3 g6 f2 g5 f4 g7 d2 g6 b3 a6 f3 a7 b2 Bd3 f1Q Be2 b4 Ra4 d4 Rh2 d3 Rh5 b3 Qe1 d1Q Rh4 f2 Ra3 d2 Bh5 Nc6+ Kf4 Kd4 e5 Rb8 Rh3 Nge7 Kg5 Qg4+ Kf6 d1R Kf7 Nf5 g8R Bh6 g7 Qdh4 Qa5 Qe1 Bd2 f1R Nc3 b1Q Ne4 b2 Nd6 Rb3 Qd8 Rf2 Kf8 Be6 Qg5 Nd8 Ra4+ Bc4 Rh1 Qh2 Ba5 Qa2 Nh3 b1Q Rf1 Qab2 Nf4 Ke3 Ng2+ Ke2 Ne3 Qb4 Be8 Q1c1 Nd5 Qe3 Rh1 Ra1 Rd1 Qed2 Ne3 Qe1 Bc6 Rba3 Bh1 Ba2 Ke8 Bb1 Rf8 Nc6 g8B Rb3 Bf7 Nd8 Bg6 Rg8 Bh5 Rg6 Rf6 Rg7 Kf8 Rc7+ Kg8 Rc5 Be8 Ng7 Kf8 Nf5+ Qg7 Bg5 Rh6 Bf4 Nf1 Bd2 Qg5 Bc1 Ne3
3Nq1RR/nb3nBB/bNb1q3/4k2b/1P2Prq1/5qp1/2Br1QP1/1n2K2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 c5 f5 cxd4 f6 g4 Qd2 Bh6 Qd1 Bg5 hxg5 exf6 Na3 f5 Nb1 f4 b4 Ke7 c4 Ke6 e4 f5 c5 a5 c6 h5 g6 d5 c7 h4 g7 f3 Bd2 g3 Qc2 d3 Bg5 a3 Kd2 f4 Rh2 a4 Nh3 f2 Qc5 f3 Qb5 a2 Nc3 d4 Nd1 a3 Rh1 Nc6 Qc4+ Ke5 Nf4 h3 Bh4 h2 Nd5 Qe8 Rc1 a1N Qc2 a2 Bg5 Bb7 c8N Nh6 g8B Nf7 Qb3 Na7 Be2 f1Q Be3 f2 Rc5 Rh4 Rc7 Rf4 Nce7 Nc2 Qc4 a1Q Bg4 Rd8 Qa6 Qa2 Nb6 Na3+ Rc2 Qe6 Bh7 Nb1+ Kc1 Rd6 Rc8 d2+ Kc2 Rd8 Qa2 d3+ Kb2 Qe2 Bf3 f1B Nf2 d1B+ Kc1 Ba4 Nc6+ Kd6 Bh5 Qf3 Bd4 Bb5 Bg7 d2+ Kc2 d1B+ Kc1 Rd7 Nd8 B5c6 Qb2 Bfa6 Qa2 Na3 Kd2 Nb1+ Ke1 Qfg4 Bh6 Ke5 Bg7+ Qf6 Ra8 Rd2 Rb8 Qge6 Be2 Qg4 Bd3 Qge6 Bc2 Bh5 Rg1 h1Q Rf1 Qh2 Rh1 Qh4 Rh2 Kd6 Nh1 Qhg4 Ra8 Qc3 Qb2 Qcf3 Qd4+ Bd5 Qf2 Bdc6 Bg8 Bg6 Rh8 Bh5 Bh7 Qf8 Rb8 Qf6 Rc8 Ke5 Ne6 Qe7 Rcg8 Qe8 Bh6 Qff5 Nd8 Qfe6 Bg7+
1bk4Q/qb2N3/3r4/1bPqqp2/1B1P3K/rN1n2r1/b2PBB1N/R1nR1q2 b - - 0 1 illegal: No proof kernel
2n2r2/1B4nN/b5qb/1NPP2RR/2qR3B/2bpnk2/1Qb1r1P1/1n2r1BK b - - 0 1 illegal: Other
2k1n1RN/8/bbnNb3/R1PP2rP/1p4q1/nr1R4/1q2B1QN/nqBb1K2 b - - 0 1 illegal: No proof kernel
2R1B3/1N1nR2B/Qn1BbP1b/1K1Pr3/2pq1qb1/5b1r/3krnPn/5NR1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 f4 Kf6 a4 Kf5 d4 c5 d6 h5 a5 b5 a6 e5 a7 c4 d7 b3 Ra4 b2 Ra5 h3 Nd2 b1B Qb3 h4 Ke3 b4 Ngf3 h2 Ra2 h3 Qc2 b3 Ra5 b2 Ra1 Nf6 Nb3 Bh6 Bd3 Nd5+ Kd2 Nb6 Rg1 h1Q Kc3 h2 Re1 Qf1 Kb4 h1N Na5 Nf2 Kb5 Qf6 d8R Be6 d5 N8d7 Rf8 Re8 a8B Kg4 f5 e3 Qe2 Kf4 Nd2 e4 Kb4 Qd4 Qh5 e2 f6 Ke3 Rd1 e1R Qh2 Re2 Bb7 Bg4 Qh1 Re5 Re1 Bc2 Kb5 b1B Ba3 Bd1 Bd6 Bbc2 Nf3 Rh7 Nh2 Kd2 Rd8 e3 Rc8 Bb1 Bg6 Bbf5 Bc6 Be6 Bc2 Bf8 Bg6 Rh3 Nb7 Bh6 Bc2 Nd3 Ra7 Qff4 Rg1 Nf2 Bb1 Re1 Bh7 Bdf3 Ra3 e2 Re3 Ra1 Re4 e1N Re3 Ra2 Nf1+ Kd1 Qh2 Re2 Qg3 Be4 Qh2 Nf3 Qg3 Nh2 Qf3 Nb8 Be8 N8d7 Qg3 Bef3 Re4 Nh1 Qe1+ Kc2 Qa1 Nf2 Qa6 Qfe3 Rf4+ Kd1 Rf5 Qef4 Rg5 Kc1 Rg7 Kd1 Re7 Ke1 Ng3+ Kd2 Nf1+
b3nb2/5n1K/B1nP3R/3Q1Pp1/2RqBnbb/r1B2qRr/2N4P/2kNr3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 Kg6 b5 f4 c5 a4 e5 a5 g3 d6 b3 d3 b4 d7 b2 a6 c4 a7 c3 Be2 e3 Nd2 b1B Bg4 b3 Qf1 e4 Qf2 c2 Bh5 Kc3 d4 g2 d5 b2 Ngf3 g1N Qg2 e2 Bg4 e1B Be6 e3 Nh4 e2 Nhf3 Bh4 Bh3 e1R Nc4 Nc6 Ra4 Ne2 Ne3 Nf6 Nd4 Ne8 Bd2+ Kd3 Bc3 c1N Nd1 Bb7 Nf3 Kc2 Rc4 Nd3 Nd4+ Kc1 Nc2 Rh7 Rg1 Nde5+ Kf5 g5 d6 Qb6 d8R Nf7 Kg6 Qd4 Bc8 Ba2 Rd7 b1Q Qd5 Qb3 Rg3 Rh8 Re7 Rh5 Re6 Rh8 Bb4 Qf3 Bc3 Rh7 Kf5 Rh5 Rh6 Bb3 Kg6 Ba4 f5 Nf4+ Kh7 Bb5 Ra4 Bf1 Qe5 Bh3 Rc4 Bg4 Qd5 Rb8 Qc5 Ba8 Qd5 Rb3 Ba6 Ra3 Rh3 Bf2 Rg3 Rh3 Rg1 Bh4 Rg3 Bb7 a8B Ncd8 Qa5 Be4 Bc6 Bd5 Ba4 Bb7 Bc6 Ba8 Be4 Nc6 Qd5
q1B1R1n1/5PKP/4b1p1/1nQ2k1N/B1R1n1n1/1N1b1b2/1r2q1PB/rr3R1b b - - 0 1 illegal: No proof kernel
1q1Nk3/1PR1rPr1/qnRn4/b7/1r1p2bK/2nBbQB1/2NP2r1/3NR2b b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 f4 h5 Kf2 a5 g4 e5 c4 d5 c5 d4 f5 b3 g5 b2 c6 a4 f6 h3 Kg3 a3 c7 a2 g6 h4+ Kf2 e3+ Kf3 e4+ Kf4 h2 Kg5 h3 g7 e2 b6 e1R b7 e3 Bb5+ Nd7 Bc6 e2 Bd5 Nb6 Bb3 Rh7 Na3 b1N Bb2 Nh6 g8R Nf5 Nc2 Ra4 Ba3 Nd6 Bc4 Rb4 Bd3 Nc3 Rg7 Bg4 Rc1 Qb8 c8N a1Q Rc7 Rg7+ Kh4 Be7 Rc6 Bd8 Na7 Qa2 Rc7 Qc4 Nc6 Qa6 Nf3 Rg1 Nfe1 Rg2 Ne3 Re7 Rg1 h1B N1c2 h2 Qf1 Rg7 Nd1 e1B+ Qf2 Re7 Qg3 Bf2 Re1 Be3 Qf3 Rc4 Ne5 Rb4 Nf7 Nbc8 Rc6 Ba5 Nd8 Nb6 Rc7 Rb5 Bc5 Rb4 Rc6 Ndb5 Bd6 Rg7 Bf4 Nd6 Bg3 Re7 Na3 Nca4 R1c5 Nc3 Rc7 Bh3 Bf2 Rgg7 Nc6 Bg4 Bg3 Bg2 Nd8 h1R+ Bh2 Rg1 Nc2 Bh1 Bg3 Rg2 Rc4 Re2 R4c6 Rg2 f7+
k1Bb1b2/1bRqBrr1/2BPn2N/1R3PP1/3rpN1Q/n2r4/4Kb1n/1n4R1 b - - 0 1 legal: proof: e4 d5 c4 dxc4 h4 f5 b4 fxe4 h5 a5 bxa5 g6 Bb2 gxh5 Bc1 h4 g4 e3 d4 Kd7 f4 Kc6 a4 b5 a6 h5 f5 e5 a7 Kb7 d5 c5 a5 e2 d6 h3 Rh2 e4 Ra4 b4 Kf2 e1N Qb3 c3 Qd1 b3 Bg5 c2 Ke3 c1B+ Qd2 c4 Rf2 c3 Rf3 c2 Bf6 h2 Be2 h1R Bb2 h4 Rf2 h3 Rh2 Nd7 Nf3 Rg1 Ba1 b2 Bf1 Nc5 Nc3 Nf6 Ne2 Rh7 Rg2 b1N Nh2 Rf7 Rc4 Ne6 Kf2 Qe8 Qg5 Qd7 Qh4 Bg5 Nf4 c1B Be2 Rb8 a8R Nc2 Rc5 Nca3 a6+ Kb6 a7 Kb7 Bc4 Be3+ Ke2 Bf2 Rc6 Ng8 Bb2 Bd8 Bf6 Nh6 Rg3 Rg2 Be7 Rg1 Bb5 Rg2 Rc1 Rg1 Rgc3 Rg3 Rg1 Rd3 g5 Ng4 Qh5 Nf6 Ng4 h2 Rc6 h1R Qh8 Rhh7 Rc7+ Kb6 Bc6 Rhg7 Qh2 Rb7 Nh6 Ng4 Qh4 Nh2 Rb8 Rd4 a8B Ka7 Bb5 Rd3 Ba6 Rd4 Rc6 Rb3 Rb5 Rbd3 B6b7 Kb8 Rc7 Ka7 Rd5 Kb8 Bc6 Ba6 Bab7 Ka7 Bc8+ Bb7 Re5 Ka8 Rb5
r4q2/1N3p1R/BRqrn1qr/r1BR1P1Q/N1r1P3/3bq1Pk/1K2nn2/7B b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 Rh3 a5 Rh1 axb4 c3 gxh4 Qd3 b5 Rh3 b3 Qc2 b2 Qd1 b4 Rh2 b3 Rh1 Bb4 cxb4 Ra7 Bf4 Ra6 Bc1 Ra8 Kd2 Ke7 f4 Kf6 a4 Kf5 b5 Kg4 a5 d5 g3 h5 a6 c5 a7 d3 Kc3 d2 b6 c4 b7 h3 Ra6 d4+ Kb4 d3 Kc3 h2 Ra1 h4 Ra6 h3 Bg2 Rh4 Re6 Nh6 Na3 b1R Re8 b2 Bc6 Na6 b8R Bf5 Nf3 Nc5 e3 Ne6 Ba4 Ra1 Nb5 b1Q Qe1 d1Q Ba3 d2 Bc2 Bd3 Bc5 Qe2 Qd1 Ra5 Rh8 Qf8 Nfd4 Qf3 Rg1 h1Q Nc6 h2 Nd8 Kh3 Rh7 Ng4 Rb6 Nf2 Nb7 Rh6 Qe2 d1R Bb3 Rd2 Rd1 Qhg2 Ba4 h1R Bc2 Qc6 f5 Qgf3 Ba4 Qc1+ Bc2 Qg4 Qf3 Qg6 Qe2 Rd8 a8B Rh4 Qh5 Rh2 Kb4 c3+ Kb3 Rb8 Bb1 c2 Nc3 Rd8 Na4 Rc8 Nd6 Rh1 Bb7 Rca8 Ba6 Rh2 Nb7 Rh1 Rg1 Qe1 Kb2 c1N+ Bc2 Rd1 Bb3 Ne2 Bd5 Rh2 Qg5 Rh6 Bh1 Rc1 e4 Rc4 Ka2 Qc1 Rd1 Qe3 Ka1 Rg2 Kb2 Rg1 Rd2 Rgc1 Rd1 Rd4 Rd2 Rd6 Rd1 Rc4 Rd2 Bc2 Rd5 Bd3 Qh5+
1b4bK/1q1N1Br1/2RQ2b1/2pk2nP/R4q1q/PrB4r/2PN2b1/q1N1Rb2 b - - 0 1 illegal: No possible last move
BnN2Qb1/1b1R1n2/2N2r1P/n4p2/Pq3Bbb/P1p4r/1N3k2/K1Bb1R1r b - - 0 1 illegal: No proof kernel
5nrn/2r1P1bR/B3P3/1b2N1bQ/r5np/NK1n2PR/pB2N2q/5Bkn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 d5 e5 fxe5 c6 Qd3 cxd5 Qd1 d4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 b4 Ke4 c5 a5 e6 f5 e7 d5 b5 h5 e3 a3 g3 h3 c6 h2 b6 a2 c7 h4 b7 f4 Nf3 a4 Ng1 a3 Qe2 f3 Qc4 f2 Qa4 Bg7 Bh3 f1N Qe8 d3+ Kb3 d4 Ne2 Kf3 e4 Kf2 e5 d2 e6 d1R Bb2 d3 Qh5 d2 Qd5 Rc1 Nbc3 d1N Bf5 Nd7 b8N Nf8 Bg4 Ra4 Qb5 Bd7 c8B Nh6 Bh5 Nf7 Qb7 Bb5 Ng1 Rg8 Nb1 Qd2 Qa8 Nh8 Nc6 Nfe3 Ne2 Ng4 Ne5 Rc7 Qd5 Bh6 Ba6 Bg5 Qc5+ Kg2 Rf1 h1N Rf7 Ndf2 Rh7 Nd3 Be8 Qc1 Bd7 Qg1 Bc6+ Kh2 Bg2 Qf2 Bf1 Qg1 Nbc3 Qf2 Rd1 a1B Nb1 a2 Na3 Qg1 Qf2+ Qg2 Qf7 Qg1 Qh5 Qf2 Nf4 Kg1 Rd2 Qg2 Rf2 Qh3 Rh2 Qg2 Rh3 Qh2 Bc1 Bd4 Bb2 Bc3 Nec4 Bcf6 Ne5 Bg7 Ne2+
1n3B1N/1bBP3k/2P1qb1r/p1NrRRPn/7R/2b2r1B/K1bpb3/1Q5n b - - 0 1 illegal: No proof kernel
2NNqB2/Bpn1nrRR/2P1b2K/r1NBr2b/5P1p/QbP1k3/2b4n/2b5 b - - 0 1 illegal: No proof kernel
q1b1q3/1B2BNbb/r3r3/1pnN4/P1kRNprQ/1b6/2BP1P1K/R2nb3 b - - 0 1 legal: proof: e4 d5 exd5 a5 b4 axb4 h4 g5 c3 bxc3 Bc4 gxh4 Ba6 Bg4 Bf1 Bc8 a4 Kd7 g4 Kd6 g5 Kc5 g6 h5 d6 e5 g7 b5 d7 f5 Ra2 e4 Bb2 c2 Qe2 c1Q+ Qd1 e3 Nc3 h3 Bc4 f4 Kf1 h4 Nce2 h2 Kg2 h3+ Kf3 Ne7 g8B Nf5 Bc3 Bg7 Qb3 Na6 Bce6 Rh4 Nd4 e2 Bef7 e1B Rb2 Rg4 Bd5 Qe8 d8N Ne3 Bh7 Nd1 Bb7 c6 Qa3+ Kc4 Nb3 Nc5 Bf6 Ra6 Ne2 Qb1 Rg1 h1B+ Rg2 h2 Be7 Qf5 Rb1 Qff8 Nc3 Qg8 Nf7 Qh8 Ke2 Qhg8 Rg1 Be4 Kf1 h1B Ra1 Bc2 Bg6 Bd5 Rg3 Bde4 Kg1 Qgf8 Nc1 Bb3 Kh2 Bd3 Nd5 Qh8+ Bh5 Bh7 Ne2 Qef8 Qb2 Nd3 Ra2 c5 Rf3 Bcf5 Bc6 Qa8 Nb6+ Kb4 Nc3 Bc8 Bb7 Qg8 Bg6 Qe8 Bf6 c4 Ra1 Kc5 Be7+ Kd4 Nbd5 Nc5 Na2+ c3 Bb1 Bg8 Qc2 Kc4 Qh7 Qd7 Be4 Qe8 Qh4 Bh7 Rh3 Rgg6 Re3 Rge6 Rg3 c2 Nac3 c1R Bb1 Rc2 Ne4 Rc3 Rh3 Rg3 Bc2 Rgg6 Rd3 Rg4 Rd4+
3nqnNq/1N1RrRbn/bnnB3k/1p4p1/3N4/1QK2P1P/P2rB1b1/1B6 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Kd2 Kf7 c4 b5 f6 Kg6 h3 e5 c5 d5 c6 e4 c7 d3 f7 e3+ Ke1 b3 Qc2 d4 Rh2 b2 Qd2 g3 Rh1 g2 Qe2 d2+ Kd1 Nh6 Kc2 d1N Kd3 Qe8 Rh2 Rh7 Nf3 g1N Nc3 b1B+ Qc2 e2 Kd2+ d3 Bb2 e1N Nd5 Nc6 Qc1 Nc2 Be5 Nc3 Rh1 Ba6 c8B Na4 Bf6 N2d4 Be6 Rd8 Qd1 Nb6 Kc3 d2 Qb3 d1Q Be2 Be4 Be5 Qf1 Bd7 Ne6 Nd4 Nf3 Bd6 Nfg5 Rd1 Bg2 Nf6 Qg1 f3 Qe1+ Rd2 Qh4 Bc8 Rd7 Rg1 Re7 Rd3 Rh8 Rgd1 Nh7 Re3 Qh5 Re4 Kg5 Rf4 g6 Rd3 Bg7 f8N Nf7 N8d7 Nfd8 Nc5 Kh6 Nb7 Nef8 Bf5 g5 Rd1 Nfe6 Bb1 Rf8 Bc7 Rff7 Be5 Nef8 Bd6 Rd7 Rf5 Rfe7 Bf4 Qeg6 Ne6 Qe8 Bh2 Rd4 Nd7 Qg4 Rf7 Bh8 Bb8 Qf4 Rd2 Qf6 Rd1 Qg7 Nf6 Qg8 Rd2 Bg7 Bg3 Rh4 Rd7 Rd4 Bd6 Rd2 Nd4 Qh8 Ng8+
3B1R1r/1nnK1b1B/6PN/b1b1k2p/np2P1Rn/1nP4B/1R2q3/N3Q1rq b - - 0 1 illegal: No proof kernel
krbB2rb/2n2b1n/q5P1/nNKp2B1/p2N2Qb/2Rb4/2NPPq2/R5B1 b - - 0 1 illegal: No proof kernel
b2q1q1R/1B2q1R1/4p3/bqPRP1Bk/Q4r2/K3NP1p/1n1B4/2q1Nnrb b - - 0 1 legal: proof: g4 c5 h4 b5 d4 cxd4 a4 f6 g5 fxg5 axb5 gxh4 Qd2 h3 Qd3 Qb6 Qd1 Qd8 Kd2 Kf7 b4 Kg6 e4 h5 c4 a5 Kc2 d5 Kb2 e6 e5 h4 f3 a4 b6 h2 b7 d3 b5 a3+ Kb3 d2 b6 h3 Qe2 d1Q+ Qc2+ Kh5 Bh6 g5 Nc3 d4 Be2 d3 Rb1 g4 Bf1 d2 Ka2 g3 Qc1 g2 Nge2 g1Q Nd4 Ne7 Rb5 Qg8 Nde2 Nd7 b8B Nc5 b7 Nd5 Bc7 Qa4 b8R d1Q Ba5 Ne3 R5b6 Q1d6 Qd2 Nd3 Rb5 Nb2 Bg5 Q6e7 Qd4 Bb7 Rg1 h1B Rd5 Qb5 Nd1 Qgf7 Rc8 Rg8 Bd2 Ra4 Nc1 Ba8 Nd3 Qf4 Be2 Nf1 Ne3 Bh6 c5 Qff8 Ne1 Rg7 Qd3 Rf4 Qe4 Rg8 Qb4 Rg7 Kb3 a2 Ka3 Rg8 Bc4 a1Q+ Ba2 Qc1 Qa4 Bg7 Bb1 Bf6 Be4 Rg6 Bh6 Rg8 Rg7 Bh4 Bg5 Bf2 Nf5 Bd4 Ne3 Bc3 Rd4 Ba5 Bb7 Rh8 Rd5 Rh6 Rb8 Rg6 Bh6 Rg1 Rc8 Qdd6 Re8 Qdd8 Bg5 Qff7 Reg8 Qff8 Rh8+
1n4K1/8/1Bp1PQ2/2p1rRRr/2nrk2q/Pq2qN2/3rrP2/bbNBR1N1 b - - 0 1 illegal: No proof kernel
B4BN1/NKR1bPPP/r2R1q2/pb1n4/1Q4pr/rn2k2q/b1RB2b1/6b1 b - - 0 1 illegal: No proof kernel
1B3q1R/2nP1k2/1r1QN2b/3q2R1/1q3nBP/Bbprpq2/1PR1N2q/1K5b b - - 0 1 illegal: No proof kernel
3r1rN1/K2Pkb2/3rP1q1/6n1/1Rp3NB/Nb1BPp2/3bR2R/1Q1b1nbq b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 dxc4 h5 e5 fxe5 g6 Rh4 gxh5 Rh1 h4 Kf2 c5 Ke3 f5 d4 b5 g4 h5 a4 c3 e6 b3 g5 f4+ Kd3 c4+ Ke4 c2 g6 f3 g7 b4 d5 b2 Kd4 h3 a5 b3 a6 h4 a7 h2 Ra3 h3 Qe1 Nd7 Bg2 Ndf6 Bf1 Ke7 Kc5 Ng4 Bf4 c1B Qc3 N8f6 g8R Qe8 Kb6 Ne3 Bg5 Qg6 Ra1 Bd2 Na3 b1B Qc1 b2 Ra2 Bc2 Qb1 Bd1 Bh4 Bg7 Rd8 Rf8 Rd6 Bh6 Rd8 Bd7 Rb8 Be8 Ka6 Bb3 Rb4 Rd8 a8N Bf7 Nb6 Bg5 Nd7 Ne4 Ka7 Bd1 Qc2 b1B Nf6 Rd6 Rab2 Ba2 Qb1 Bab3 Rc2 Bh6 Ra2 Ng5 Ng8+ Ke8 Rc2 Rd8 d6 Bg7 Bg2 Nf1 e3 Be5 Nh6 Bg3 d7+ Ke7 Rb2 Bf2 Ng8+ Kd6 Ne2 Bg1 Nf4 Qh7 Nh5 Qg6 Ngf6 Ke7 Ng4 Bc1 Rf2 Bd2 Re2 Bf2 Rg1 h1R Nhf6 h2 Bh3 Bc1 Rg2 Bd2 Qc2 Rg1 Qb1 h1Q Rh2 Rg2 Nh6 Bg1 Bf5 Rg4 Bd3 Rd4 Nfg4 Rd6 Ng8+
2n1qR2/BKbP2p1/r1prP3/knN1NQR1/2Bqb1R1/1P1B4/r4n1n/5n2 b - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 fxe5 h6 Qc2 hxg5 Qd1 g4 Kf2 Kd7 Ke3 Kc6 Ke4 Kb5 h4 f5+ Kf4 a5 d4 g3 e4 g2 d5 c6 e6 a3 Ke5 a2 e7 f4 e8B a4 b3 a3 d6 f3 h5 f2 h6 Ne7 h7 Na6 Be3 Nc7 Rh3 Ka5 Bc1 c3 Qd3 c2 Nd2 Bf5 d7 Ra6 Rg3 Nb5 Rg4 Nc8 Ngf3 g1N Bf7 Qe8+ Be6 Be7 Bc4 Bg6 Bb2 c1N Bd4 Rf8 h8R Rf6 Be2 f1N Ba7 Rd6 Rf8 Bf5 Rb1 a1R Qc2 a2 Bed3 Nh2 Rg5 Nce2 Rd1 Nh3 Rdg1 Bg6 R1g4 Nf2 Qb1 Ng3 Qc2 Rd4 Ke6 Rd5 e5 Ngf1 Ne4 Rd4 Nc5 Be4 Be2 Rd2 Bed3 Rad1 Qb1 a1Q Qc2 Qh5 Qb1 Bd8 Qc2 Bc7 Qb1 Ncd6 Ke7 Ra2 e6 Qd4 Ne5 Bb8 Kd8 Nc8 Be2 Qb2 Qc2 Rd6 Bed3 Qd4 Qb1 Rd5 Nf3 Bg3 Ne5 Rd6 Qc2 Nc3 Kc7 Nb5+ Kb7 Qe8 Rh5 Bh4 Rhf5 Bd8 Rfg5 Bc7 Qe2 Qa1 Qf3 Qd4 Qf5
b1R3bq/QPqbR1p1/2r1PB2/3BN1Pn/r4b1p/2N2K2/1nkr4/1B4bR b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 axb5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kf2 Ke7 b4 Kf6 c4 Ke5 e4 f5 c5 d5 b6 h5 b5 a5 c6 d3 b7 Kd4 c7 a4 e5 d2 b6 a3 Bd3 h4 Be2 a2 Qf1 d1B Bd3 f3 Qe1 f4 Be2 Bc5 Bb5 Nf6 Bd2 Rh6 Qe2 Ra4 Qf1 Nc6 b8R Na5 Ba6 Bb3 Qb5 Bd7 c8B Nh5 Bcb7 Nc4 Na3 Kd3+ Be3 d4 Bc1 Rc6 Rb1 a1B Rd8 Bc3 Rb2 Bd2 Qa5 Ba2 Rb5 Nb2 Nb1 Kc2 Nc3 Bg8 Rb4 d3+ Rd4 Qh3 e6 Qh2 Rc8 Be3+ Ke1 Bd6 g4 f2+ Kf1 d2 Ke2 d1R g5 f1B+ Kf3 Bf2 Bc4 Rd2 Ba2 Bc7 Qa7 Bg2+ Kg4 Be4 Nf3 Bg1 Ne5 f3 Rd6 f2 Rd5 Nd3 Bb2 f1Q Ra5 Qf8 Rb5 Rc5 Bbd5 Rc6 Ba1 Nb2 Rb4 Bf5+ Kf3 Bd3+ Rf4 Ba6 Rf5 Bb7 Rf7 Ba8 b7 Bd6 Ng6 Bf4 Re7 Bf7 Ne5 Qh8 Ne2 Nc4 Bd4 Nb2 Nc3 Bg8 Ng4 Bfe3 Bf6 Qc7 Ne5 Bf4 Bb1+
4r3/pq1N1bN1/b1Qb2r1/2qR1pb1/P2bP1n1/6PK/3NBRBn/1kr2B2 b - - 0 1 illegal: No proof kernel
Nn6/4bRB1/1Knb4/8/2PPQqr1/p1nNPB2/1Bk1p1R1/r1rb1Rbq b - - 0 1 illegal: No proof kernel
6R1/n2n4/R1q1k1N1/2Pn1nBp/bBq1BrbP/1PQ1b2R/1K2p2q/rN6 b - - 0 1 legal: proof: Nf3 b5 Nc3 c5 Nb1 b4 Ng1 b3 axb3 c4 Ra5 c3 Ra2 Qa5 Ra1 Qd8 e4 cxb2 g4 f5 e5 fxg4 e6 dxe6 Bg2 e5 Bf1 e4 h4 Kf7 f4 e5 c4 h5 d4 g5 Kd2 a5 Kc2 e3 f5 e4 f6 g3 c5 g2 d5 e2 d6 e1Q d7 a4 Qe2 e3 Qd3 a3 Qc3 e2 Qa5 g4 Nd2 b1B+ Kc3 g3 Nf3 g1Q Ne5+ Ke6 f7 a2 Nf3 g2 Rh3 Qb6 d8B Nf6 Rh2 Nc6 Qb5 Bf5 Rh3 Nd5+ Kb2 Qh2 Rg3 g1N Bh3 Bd7 Rb1 a1N Rg7 Bg4 Qc4 Nc2 Rg8 Na7 Qb4 Ba4 Bg5 Qc6 Ra1 Nce3 Qc3 Nf5 Bg2 Bh6 Ne5 Nf3 Ng6 Ne5 f8R Nd7 Nb1 Qeh1 Bgd2 Be3 Be4 Qd1 Be1 Qd3 Bed2 Qc4 Ra2 Nh6 Rf3 Nf5 Rh3 Rh6 Qc2 Rh7 Bb4 Rf7 Ra3 Nh6 Ra2 Rf4 Qc3 Nf5 Ra3 Bb5 Ra5 Ba4 Ra6 Nb5 Nh8 Rf1 Rd8 Bd4 Bf4 Be3 Bg5 Rf4 Rb6 Ra5 Na3 Na7 Ng6 Bb5 Nb1 Ra1 Rg8 Ba4 Ra6
1Nk1q3/R3Bq2/7P/nrr3p1/K1N1rQBB/1nq1p2P/4bPnq/b1R3R1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 gxh5 dxc4 Nh3 f5 Ng1 fxe4 d4 Kd7 Kd2 b5 Kc2 e5 a4 g5 h6 c5 a5 e3 h3 c3 Kb3 c2 d5 e4 a6 c4+ Kb2 b3 a7 b4 d6 e2 Ra5 e1N Be3 c1Q+ Ka1 c3 Nf3 b2+ Ka2 c2 Kb3 Ba6 Bd4 e3 Nbd2 b1Q+ Ka4 b3 Bg7 b2 Ne5+ Kc8 Be2 Nd7 Bd3 Ng2 Bf5 Qe8 Bd3 Nc5+ Ka3 Rb8 a8R Nb3 Ndc4 Ne7 Be2 Nc6 Ra7 Rb5 Qd4 Qg1 Ra4 c1R Bg4+ Qf5 Nd7 b1Q Nb8 Qh2 Rg1 Qd3 Be5 Nca5 Bg3 Bg7 Qf4 Ba1 Bh4 Qc3 Rb4 Rh7 Ka4 Rc2 Rc1 Re7 Rg1 Re4 Rc1 Nd2 Rbb1 Ndb3 Rg1 Rd2 Rbc1 Rdd5 Ra8 Rdc5 d7+ Kb7 d8B Qff7 Bh5 Kc8 Ra7 Bb7 Be7 Bc6 Rge1 Bd7 Rh1 Bg4 Rhg1 Be2 Bg4+
BBk2R1q/K5N1/5p1q/3rn3/n2Q1b1P/b2R2rP/P1bR1pb1/1qNrB3 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 g3 exf4 b6 h4 gxh4 axb6 Bg2 b5 Bf1 b4 Kf2 Kd7 e4 b5 d4 g5 e5 c5 h3 f6 d5 b3 d6 b2 Bd3 g4 Qf1 b4 Bc2 b3 Qg2 f3 Ke3 f2 Na3 b1B Qg3 b2 Bd3 c3 Bb5+ Nc6 Qf4 c4 Bd2 c2 Ne2 c1B Rg1 g3 Rd1 g2 Nc2 g1R Qd4 Bb7 e6+ Kc8 e7 c3 e8R Ne5 Bc6 Rh5 Be4 Be7 Rf8 Ra3 Bc6 Ba8 Ke4 Rh1 Be1 Bf4 Kd5 Rf1 Ne3 c2 Kc5 c1Q+ Kb5 Bc2 Nf5 Rg3 Ka6 b1Q Rd2 Rhg5 Bh1 Bg2 Ng7 Rg1 Rd3 Qd2 Ka7 Qe3 Bb4 Rd1 Be1 Rf5 Nc1 Rh5 Re8 Bf8 Rd2 Ne7 Rd3 Nd5 d7+ Kc7 Rd2 Ba3 Rf8 Nb6 Rd3 Qe8 d8B+ Kc8 Bc7 Na4 Bb8 Qd8 Rf7 Qh8 Rd2 Bf1 Ba8 Bg2 Rd3 Qe4 Rd2 Qeh7 Rd3 Qh6 Rd2 Qb2 Rb1 Qa1 Rb3 Qb1 Re3 Nf3 Rb3 Rd5 Rbd3 Ne5 Rf8+
R5q1/4qn2/K4p1r/P2qnP2/2Pb1q2/Bnkb1rrp/3N1N2/3NRBBQ b - - 0 1 legal: proof: e4 a5 d4 d5 h4 g5 b3 gxh4 b4 axb4 exd5 c5 Qh5 cxd4 Qe2 Nf6 Qd1 Ng8 Kd2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 h5 g4 h3 a4 b3 c4 f6 a5 h4 g5 b2 g6 d3 f4+ Kd4 d6 e5 d7 h2 g7 e4 Bh3 d2 Qf1 d1Q Nd2 b1N Qf2+ e3 Ngf3+ Kc3 Ne1 e2 Nd3 e1Q Nb4 Rh6 Nc2 Bc5 Nb4 Qg4 Ra4 Qee7 Bf1 h3 Nc2 Nc6 Qg2 Ne5 Qc6 Bd4 Nb3 Nd2 Rg1 h1Q Ra1 b6 Ne3 Qd5+ Qc5 Qdf8 d8B Bf5 Ba3 Bd3 f5 Qf4 Re1 Rc8 Ka6 b5 Rg6 b4 Bb6 Qff7 Qc6 Rf8 Nc5 b3 Rg5 b2 Nb3 b1R Bbc5 Qdd8 Qh1 Qdd5 Nd1+ Kc2 Bg2 Rh4 Ne3+ Kc3 Re2 Nh6 g8N Rf1 Re1 Rf3 Bf1 Rg4 Bb6 Bc5 Rg6 Rgg3 Nd1+ Kc2 Rg4 Qg6 Ba7 Nhf7 Nh6 Rh8 Rh4 Bf2 Ng4 Bg1 Rh5 Be3 Rg5 Rh6 B7c5 Qh7 Rg8 Bf2 Ra8 Qg8 Bcb4 Ba7 Bc5 Bb6 Bg1 Bd4 Nb2 Kc3 Nf2 Ne4 Nd2 Nc5+ Kb6 Nb3+ Ka6 Bc5 Rb8 Bb6 Ra8 Bd4 Nbd1+
BKn1b2Q/8/BR1nPqb1/1rp1bp1k/PnNB4/1q3NbP/4rR2/3q2R1 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 Kf2 b5 Kg3 c5 Kf4 g5+ Ke4 c3 d4 g3 a4 g4 h3 g2 d5 g3 e3 c2 e6 b3 Ke5 b4 d6 b2 e7 b3 e4 Na6 Nf3 g1B Bc4 g2 Qf1 Bg7+ Kd5 Bh2 Kc6 g1N e5 Nb4+ Kb5 Ne2 Bd2 c1Q Be6 Ng3 Na3 b1Q Ra2 b2 Ng5 Qd1 Bd5 Nf5 Bc3 Bg3 Rg1 Bd7+ Bc6 f6 Nf3 Kf7 Nc4 Kg6 Bd4 Be8 d7 Kh5 e6 Rb8+ Bb7 Qbd3 Qe2 b1B Qb2 Q3b3 Qc3 Rh6 Rf2 Rg6 Qa1 Rg4 Qb2 Re4 Qa1 Nd5+ Kc6 Re2 Ba8 Nd6 Qc3 Bbg6 Qb2 Bef7 e8B f5 Qc3 Qg5 d8R Rb5 Rb8 B7e5 Rb6 Nb4+ Kc7 Ne7 Kb8 Qf6 Bd7 Be8 Bc8 Bef7 Ba6 Nec8 Qe3 Be8 Qe4 Re3 Qb7 Re4 Qg7 Re2 Qh8+
R2b4/n3q1rb/1P1r1NQr/2BPBK1P/B1pRN3/5b1p/N2nn3/1r1kq3 b - - 0 1 illegal: No proof kernel
1K3nkn/4b1qr/rp2qn2/B1qbP1bn/1R4RN/4P1p1/NQ1BP3/1N3B2 b - - 0 1 illegal: Other
K3bk1q/3NrP2/bP2q3/3R1nnB/1NB1rp1r/bR2BRpQ/4P3/1q4b1 b - - 0 1 illegal: No proof kernel
3q1q2/1RnBPR1K/B1QNrRrb/N1p1Pb2/b2p4/3P2k1/6nn/1B3n1q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 b5 Ba3 bxc4 b5 e5 Bb4 axb4 fxe5 Ra7 Na3 Ra4 Nb1 Ra8 Kf2 Ke7 Ke3 Ke6 Kf4 h5 e4 f5 a4 d5 g4 c5 g5 d4 a5 h3 g6 h4 a6 h2 a7 h3 b6 c3 g7 b3 d3 c2 b7 c1N Na3 b2 Be2 b1B Nc4 Nh6 Qc2 Ng4 Nf3 Na6 b8R Rg8 Na5 Nc7 Rf1 h1Q Nd2 h2 Qa4 Bc2 Ndc4 Bb3 Qb5 Ba4 Nd6 Bd7 Rf3 Qf1 Rb7 h1Q Qc6 Nh2 Ra2 Rb8 a8B Bc8 Rab2 Bd7 Ra7 Rb6 Bb7 Qf2 Ba6 Qff1 Kg3 Qf2+ Kh3 f4 Bd1 Bc8 Bc2 Ne2 Bb1 Bd7 Rg3 f3 Rg6+ Ke7+ e6 Qff1+ Kh4 f2 Kg5 Nf4 Kh6 Ng2 Rg4 Kf6 Rg6+ Ke5 Kh7 Kf4 Rf6+ Kg3 e5 Bc8 e7 Bg4 Rb7 Bf5+ Kh6 Qd1 Ra2 f1N Rf2 Qf3 Kg5 Rh8 g8B Rh6 Be6 Bg7 Rf7 Bf8 Bc8 Re6 Bd7 Qf4+ Kh5 Bh6 Rf6 Bh3 Kg6 Qf3 Kh7 Bg4 Rg6 Qff8 Rg7 Rg6 Rf6 Bf5 Qb5 Rc6 Rgf7 Rb6 Ne8 Rd6 Qc6 Re6 Nd6
1R1q3q/K1Pnp1b1/nr1N4/Np1r1q2/Q2BPrR1/2PB3k/1N2rnbB/8 b - - 0 1 legal: proof: g4 c5 h4 a5 b4 axb4 d4 f6 g5 fxg5 dxc5 gxh4 Be3 h3 Bf4 Nh6 Bc1 Ng8 Kd2 Kf7 Ke3 Kf6 Kd4 Kf5 f4 Kg4 a4 h5 c6 b5 Kc5 d5 f5 g5 c3 h4 a5 h2 f6 d4 f7 b3 c7 b2 Kb6 d3 a6 h3 a7 d2 Na3 b1Q Nc2 Rh4 Ra5 Bb7 Nf3 Na6 Nfe1 Rb8 a8N Bg7 f8B Nf6 Nd4 Nd7+ Ka7 Bg2 Nb3 Rb6 Rg1 h1N Nd3 h2 Nb2 Qf5 e4+ Kh3 Bd3 g4 Qc2 d1R Bf4 g3 Be5 Rg6 Nb6 Nf2 Nc8 h1Q Nd6 Rf4 Ra4 Rd2 Na5 Re2 Ra2 Re6 Bd4 Re5 Qa4 Rd5 Raa1 Kg4 Rad1 Qh8 Ra1 Kh3 Ra3 Be5 Bh6 Bf6 Bg5 Bg7 Bgf6 Bh1 Bfe5 g2 Rd1 g1R Rd2 Rh4 Bh2 Rf4 Rd1 Rgg4 Rg1 Rg6 Rg4 Re6 Nc8 Rb6 Nd6 Bf3 Ra1 Bg2 Rg1 Bf8 Rg8 Bg7 Rf8 Bf3 Rg4 Bg2 Rf7 Qdg8 Rf6 Qg6 Rf8 Qf5 Ra8 Qd8 Rb8
bRkbB1b1/K1pqq2R/p6P/N6P/NBQ1r1R1/2Pb1n2/rNr2n2/q7 b - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 d5 a4 dxe4 f3 exf3 Bh3 bxa4 Bg2 Kd7 Bf1 Ke8 Kf2 Kd7 Ke3 e5 b4 g5 d4 f5 h4 g4 b5 f4+ Ke4 a3 Kd5 g3 h6 e4 c3 e3 h5 f2 b6 f3 b7 a2 Ba3 e2 Rh2 e1Q Be2 f1B Rh4 g2 Bb5+ Nc6 b8R f2 Qe2 Bb7 Bb4 Be7 Nh3 g1R Nd2 Rg2 Qc4 Bd3 Nb3 f1B Na5 Rc2 Rd1 a1Q Nf4 Qc8 Rg4 Bd8 Kc5 Nf6 d5 Qe7+ d6 Re8 Ba4 Bh3 Kb5 Ne4 Rdg1 Nf2 R1g2 Bg6 Nd3 Ne5 Nb2 Bd3 Rg7 Bhf5 R2g4 Be6 Rh7 Bbd5 Rb7 Bg8 Ka6+ Ke6 Bc6 Qcd7 Rb6 Nf3 Kb7 a6 Rb5 Rb8+ Ka7 Rf8 Rb6 Rf4 Rb7 Re4 Rb5 Qc8 Be8 Rb6 d7 Rd6 Qd4 Ba8 Rb8 Rd5 Nac4 Ra5 Nb6 Ra2 N6a4 Qf7 Rgg7 Bf6 Rg4 Qe7 Ba5 Bh4 Qc4+ Kd6 d8N Bg5 Bg6 Kd7 Bb4 Bf6 Nc6 Qd8 Rb7 Kc8 Be8 Qdd7 Rb5 Qf8 Rb6 Bd8 Na5 Qfe7 Rb8#
2BRq3/pK3P1Q/rn1P4/pR1B2r1/3q2br/P1BN2nk/Nb4Rb/b3q3 b - - 0 1 legal: proof: e4 d5 h4 f5 c4 fxe4 cxd5 g5 Qf3 gxh4 Qa3 b6 Qa5 bxa5 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kg4 b4 e5+ d6 h5 d4 h3 f4 h4 d5 h2 b5 e3 f5 e4 b6 h3 f6 e2 b7 e1B a3 e3 g3 e2 f7 Nd7+ Kc6 Nb6 b8Q Bc3 d7 e1Q Bc4 Qde8 Bd2 Nf6 Nf3 Nh5 Ra2 Ba1 Bc3 Bd6 Rg2 Rh6 Bb3 Qd1 Ne1 Qd4 Nd3 Rg6 Re1 h1R Re5 h2 Qb7 Kh3 g4 Ng3 g5 Rh6 g6 Rg1 g7 h1Q g8B Re6 Kb5 c5 Kc6 c4 Bh7 Rb8 Ba2 Rh6 Qa8 Rh4 Rh5 Be5 d6 Bf4 Kc7 Be5 d8R Bg4 Rg5 Rc8+ Kb7 Rc6 Bf5 Bf4 Bd2 c3 Bd5 c2 Bc8 c1B Nc3 Bcb2 Na2 Be5 Rf2 Rg2 Bc3 Qe1 Qb8 Nh1 Rc2 Bh2 Rh5 Rg1 Rg2 Ng3 Qc7 Rf1 Qe7 Rf5 Qe4 Rg5 Qg6 Nc4 Qh6 Ra6 Qh7 Nb6 Be4 Rg6 Rb5 Rg5 Bd5
bbn5/p1r2Pbq/PN1B1Q1n/2R2p2/N4R1B/1NB2Pk1/1qnK1br1/7q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxe4 g5 bxc4 Qh5 Qd6 Bh3 Qf6 Qd1 h5 Bg4 hxg4 Kf1 Qe6 Ke2 f5 Ke1 Qf6 gxf6 Rh6 Qb3 Rh5 Qd1 Rh8 d4 Kd7 h4 Ke6 b4 g5 a4 c5 a5 c3 h5 e3 f7 e2 h6 c4 f3 c2 b5 g3 a6 g4 b6 c3 b7 g2 d5+ Ke5 d6 g3 h7 Bg7 d7 Nh6 d8B Rg8 h8N Nc6 Be3 c1B Qa4 c2 Beb6 Bf4 Rh2 c1Q+ Qd1 Qb2 Nh3 g1B Rh1 g2 Ba5 e6 Bg5 Ne7 Nf2 Bg3 Bh4 Kf4 b8B+ e5 Qd6 Bb7 Qf6 Nc8 Nc3 B3h2 Bg5+ Kg3 Ng6 Bc6 Nf4 e4 Ng4 Bd4 Rf1 g1Q Na4 Qh1 Ne3 Bb7 Nc2 Bf2+ Kd2 e1N Bd6 e3+ Kd1 e2+ Kd2 Rb8 Bc3 Ba8 Rb1 Rb7 Nd5+ Kh3 Ra1 Rc7 Ndb6 Be5 Rd1 Kg3 Rc1 Qh5 Rh1 Qg6 Rh4 Qh7 Rf4 Rc4 Bc5 Bb8 Bf8 Rc7 Bd6 Qa1 Na3 Nc2 Nac4 Qb2 Na5 e1Q+ Kd3 Qf1+ Kd2 Qh1 Nb3 Ng4 Re1 Nh6 Re5 Re8 Rc5 Re1 Kd3 Rg1 Kd2 Rg2 Bh4+
B3Nb2/p2BP2q/PB3R2/b1QrqrR1/k1rNnq2/3P1np1/1K2R3/1n3q2 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 cxb6 Bh3 b5 Bf1 b4 f3 e5 Kf2 e3+ Kg3 e2 Kg2 e4 Ba3 e3 Bb2 Bf5 Bc1 Be4 fxe4 Rh3 Qe1 Rh7 Qd1 Rh8 c4 Kd7 a4 Kc6 h4 e1B e5 g5 e6 b5 e7 f5 h5 e2 c5 f4 h6 b3 a5 b2 a6 f3+ Kh2 b4 h7 Kb5 c6 b3 c7 f2 Kg2 g3 Kf3 g2 Ke3 g4 c8B g3 Rh2 Nf6 Na3+ Ka4 Qc2 b1Q Nf3 g1Q Bg2 Ne4 Bd7+ Nc6 Kd3 f1R Nd4 Rf5 Bh1 Rg8 h8R Qf1 R8h5 Qb8 Rg5 Qbf4 Bf3 Rc8 Nab5+ Kb4 Nc7 b2 Ra5 Rg6 Bh1 Rd6 Ne8 Rdd5 Rb5+ Ka3 Rb6 Rc7 Kc4 Rc8 Qc3+ Ka4 Qe3 Rc7 d3 Ba5 Rg2 e1Q Re2 Qh3 Qf2 Qh7 Be3 Qf1 Qg1 Qe5 Bg2 Qff4 Bf3 Qf1 Bh1 b1N Bg2 Be1 Qf2 Ka5 Kb3 Rc8 Kb2 Ka4 Qg1 Ba5 Bh1 Q1f2 Qc1 Qf1 Qc5 Qe6 Nb5 Nd4 Bf2 Qee5 Rf6 Nf3+ Nd4+ Rc6 Qc3 Nd6 Re6 Nh4 Nb3 Rb5 Rf6 Rc8 Be4 Nf3 Ba8 Ne4 Bd4 Rc6 Bb6 Rbc5 Nd4 Rd5 Nb5 Rc8 Qd4+ Rc4 Qc3 Rcd4 Qc5 Rc4+ Nd4+
n3rBbk/3P3n/4Rn2/KP2nBpn/1p1Qn1Nr/4bPr1/1qN4B/R2N4 b - - 0 1 illegal: No proof kernel
N1k5/r1Qn3N/PPR3r1/R3q1n1/1bpBp1BP/1B2q1qq/KN3q2/3bq3 b - - 0 1 illegal: No possible last move, all moves rejected
nBN1k3/6Pr/1p2N2q/PK1nnp1R/4rnq1/P4NQn/R1bbBnB1/8 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 c5 d4 cxd4 Kd2 e5 Ke1 exf4 Kd2 h5 Kd3 d5 g4 f3 e4 f2 c4 h3 a3 b6 g5 h2 g6 h4 e5 h3 c5 Qd6 e6 Nf6 e7 Rh7 g7 Nh5 c6 Qh6 c7 Na6 Be2 f1N Bb2 Ne3 Bc3 Ng4 Nd2 Nf4+ Kc2 d3+ Kb3 d4 Kc4 Ne5+ Kb5 Bf5 c8B Nc7+ Kb4 f6 Ne4 d2 Rc1 d3 Qb3 d1N Bd2 Nc3 Bb7 N3d5+ Ka4 Ra7 Rc3 Na8 Be1 d2 Rc2 d1Q Nc5 Qd4+ Rc4 Bc2 Ne6 f5 Nf3 Qg1 Kb5 Qg4 Bc6+ Rd7 Bb7 Rc7 Rc3 Rc4 Bg3 Re4 Ra1 h1N Ra2 h2 Rc6 Kd7 e8N Nf2 Nd6 h1N Nc8 Bb4 Rd6+ Ke8 Rd8+ Kf7 Rh8 N2h3 Qe3 Bd2 Qg1 Qhg5 Bh2 N1f2 Qg3 Rh4 Rh6 Ke8 Rh5 Qh6 Bg1 N2d3 Bc5 Ndf2 Bd6 Qhg5 Bb8 Qg6 Rg5 Rh7 Rh5 Qh6 Nc5 Rd4 Nh4 Nf6 Bg2 Re4 Nf3 N6d5 Ne6
4BbR1/4pq2/1nb3rN/bP2bN1p/3n3P/K1Q2b1n/1N3PBk/n1R1r2B b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 h3 fxe4 Rh2 b5 axb5 g5 Rh1 g4 Bd2 Nh6 Bf4 Ng8 Bh2 g3 Qd2 gxh2 Qe2 Bb7 Qd1 Bc8 Kd2 Kf7 Kc1 Kf6 g4 Kg5 c4 Kh4 b4 a5 Kb2 h5 b6 d5 g5 d3 b7 e3 c5 a4 b5 a3+ Kb3 d4 c6 a2 g6 d2 g7 d3 c7 e2 Nc3 e1B Nb1 Bd7 c8B Rh6 Bg2 Nf6 g8B Qe8 Qe2 d1B+ Kb2 d2 Qc4+ Ne4 Be6 Qf7 Qc1 Ng5 Qc5 Bf3 Bd5 Bc6 Ne2 Rg6 Qc3 Nd7 b8N Nb6 Rg1 h1N Bd7 Ng3 Na3 Nf5 Nc4 Nd4 Be8 Ra7 Ng3 d1N+ Kc1 Ra8 Nb2 Ne3 Nd7 Nec2 Nf6 Rc8 Rb1 a1B Ng8 Ra8 Nh6 Rd8 Qc4 Ba5 Qc3 Rdd6 Be4 Rde6 Bh1 Be2 Beg2 Bef3 Kd2 Re1 Rd1 Nge6 Kc1 Nf4 Kb1 Nb3 Ka2 Ncd4 Nd3 Bb2 Rc1 Ba1 Qb4 Bc3 Ka3 Na1 Qb2 Nf5 Qb4 Be5 Nb2 Nd4 Qc4 Na8 Qc3 Nb6 Nhf5+ Kg5 h4+ Kg4 Bf1 Nh3 Rg2 Nf4 Nh6+ Kh3 Rg1+ Kh2 Ngf5 Nh3 Rg5 Re6 Rg8 Rg6 Bfg2
B3N1b1/2Pb2RP/5R2/RbN1Nk2/1P1b2pK/nQB1q3/3rpr2/rnrr4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 f4 Kf7 Kf2 Ke6 Kg3 d5 c4 a5 h4 g5 b4 e3 h5 d3 h6 d4 b6 d2 h7 d3 b7 a4 c5 e2 c6 e1R c7 a3 Rh6+ Nf6 Bh3 a2 Qc2 d1B Qf2 d2 Qd4 Be2 Qe3+ Kf5 Qa7 d1B Na3 e5 Bg2 e4 Bf1 e3 Rh3 Bb3 Rh4 Qe7 Nb5 Nc6 b8R Nd5 Nf3 Na5 Qc5 Bd7 Rd8 Nc4 Rh6 Na3 Bb2 Rc1 Bc3 Bg7 Qc4 Bd4 Ne5 Rf8 Bg2 Bd3 Rg6 e2 Rg7 Rf7 Rdg8 Rd8 Re8 Qc5 Re6 Rd1 Ra6 Rd2 Rf1 a1R Ra5 Ba2 Qb3 Rf6 Bb2 Nc3 Ba8 Ncb1 Bc3 Qa7 Qa4 Bg8 Qb3 Rh6 Rf2 Rh2 Rf3 Rf2 Nd6+ Kf6 f5 B3b5 Nd3 Qb6 Nc5 Ke5 Ne8 Qe6 f6 Qe7 Rd3 Kf5 f7 Qe4 f8N Qe6 Bg2 Qe3+ Kh2 g3+ Kh3 g4+ Kh4 Rd1 Ba8 g2 Ng6 g1R Ne5 Rc1 Rd2 Rgd1 Rd3 Qf4 Rh3 Qe3 Rf3+ Qf4 Rg3 Qe3 Qc4 Bdc6 Bb2 Bc3 Qd5 Kf4 Qa2 R8d2 Qb3 Bd4 Bc3 Bd7 Nb7 Bc5 Rf3+ Ke4 Rf6 Bd4 Rh6 Kf4 Nc5 Kf5 Rf6+
bB1R1b1b/b1pNnR2/n4R2/1b6/npPP1qN1/1N1P1n2/K2BrQ2/2r2k2 b - - 0 1 legal: proof: g4 d5 b4 h5 e3 hxg4 b5 f5 b6 g3 Ke2 d4 exd4 g2 Ke1 axb6 Bc4 b5 Be2 b4 Bg4 fxg4 h4 Kf7 a4 Kg6 f4 Kf5 h5 Ke4 a5 g5 h6 e5 f5 b5 a6 g3 a7 g4 h7 b3 f6 b4 f7 b2 c3 Kd3 Ne2 g1B Rh3 e4 Rh5 e3 Rh3 g2 Rh1 g3 Rh2 Qd6 Ra6 Bb7 Na3 b1B Nc2 Qf4 Rf6 Na6 Rh4 Rc8 a8R Re8 Rd8 Ba8 Rh1 Bh2 Rf1 Ne7 Rf3 Rg8 h8B g1N Bg7 g2 Bh6 Nc5 Bb2 Na6 Nc1+ Ke4 Rf2 e2 Nb3 Kd3 Ne3 Rg5 Rf1 Rc5 Ng4 Bc2 Qa1 Bd1 Qa2 Nf3+ Kf2 e1N Bc1 Qf5 Be3 Be5 Qb2 Bc2 Qa2 Qf4 Qb2 Ke4 Ke2 Bd3+ Kd1 Bb5 Rf2 Nd3 Kc2 g1B Kb1 Rc6 Ka2 Ndc5 Rf1 Kd3 Qc2+ Ke2 Qf5 Qh2 Qf4 Qh6 Qh2+ Kd3 Qf2 Qf4 Qe2+ Kc2 Rfd6 Qe4 Rc8 Nh4 Rcd8 Nd5 R6d7 Bh8 Rf6 Na4 Qh2 Bc5 f8N Kd3 Qg2 Bh2 Qf2 Nf3 Rdf7 Bhd6 Nd7 Bf8 Bf4 Re7 Be5 Qf4 Bd6 Re1 Be7 Bb6 Bd6 Ne7 Bc5 Rce6 c4 Rh1 Qh4 Ke2 d3 Rf1 Be3 Rc1 Bd2 Kf1 Qg3 Re2 Qh2 Ba5 Ba7 Bb6 Bb8 Ba7 Qf2+
2q5/p3pRPn/B1N2PB1/2q1BPb1/1N1N2b1/Rr1nk3/bb5Q/4rbKb b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 g4 Kf7 c4 Kf6 f4 h5 Kf2 d5 b4 d3 b5 d2 c5 h3 b6 h4 b7 a3 c6 h2 c7 a2 Bd3 h3 Bc4 d4 Ne2 d3 Rf1 h1Q Nec3 h2 Bb2 Qg1+ Kf3 Na6 b8N Qc5 Kg2 h1B+ Kg3 Be6 c8B Bh6 Kh2 Bg5+ Kg3 Nb4 B8a6 Qdc8 Qe2 d1B Na3 d2 Qh2 Be2 Nab5 d1B Nc6 Nd3 Nbd4 Rb8 Rf3 Bf1 Nd5+ Kf7 f6 Kg6 Rf2 Rb3 Ndb4 Rh5 Bd5 Kh6 Be4 Bc4 Rb1 a1B Bg6 Bf7 Bc3 Bb2 Ra1 Bde2 Ra3 Bd1 Qg1 Rh2 Rf3 Re2 Qf2 Re1 Kh2 Bc2 Qg3 Bb1 Kg1 Ba2 Be4 Be6 Qh2+ Bh4 g5+ Kh5 Rf2 Kg4 Bg6 Bd7 Ne2 Be6 Be5 Bd7 Be8 Kf5 Bh5 Ke4 Ned4 Ke3 Bg6 Be6 Rg2 Bg4 f5 Nh6 Be8 Nf7 g6 Ng5 Rg3+ Ke4 Rh3 Nh7 g7 Bd1 Bg6 Bg5 Rh5 Bg4 Rh4 Nf8 Rh8 Nh7 Rf8 Ke3 Rf7
r4rR1/1N4n1/2PN4/pN1q3k/3b2P1/4n1rB/1RPK2pb/bQBbnR1n b - - 0 1 illegal: No possible last move, all moves rejected
r4k2/1rRQ2Nr/P2B1Nn1/RpP2bB1/6nb/1Kn1B1bp/1P1b3q/1N4r1 b - - 0 1 illegal: No proof kernel
1N2R1k1/b7/pn3QBK/R2Pb2n/5r1r/Pb1Pn2b/1Nqpr3/B3NBn1 b - - 0 1 illegal: No proof kernel
2B4q/B6p/K1NpQ2R/brR1Pnn1/b2bPR1n/3rnNB1/1k1P4/r5b1 b - - 0 1 legal: proof: b4 e5 f4 g5 fxe5 b5 h4 gxh4 a4 c6 c3 bxa4 b5 c5 Qb3 Ke7 Qc4 Ke8 Qb4 cxb4 e4 a5 Ke2 f5 Kd3 f4 Kc4 h3 g4 a3 g5 f3 g6 h2 g7 a4 b6 b3 Kb5 a2 c4 b2 c5 a3 b7 f2 c6 Na6 b8B Ne7 g8R Nc5 c7 Nf5 Kb6 Nh4 Bb5 f1N Nf3 Ne6 Nc3 b1R Nd1 Ng5 Rg6 Ne3 Rh6 Bb4 Nb2 Ba5+ Kc5 Ke7 Re1 h1N Rd1 Ng3 Be2 Ngf5 Kb5 d6 Re1 Rg8 Nd4 Kd7 Bg4 Rg7 Re2 Qh8 Nf3 Ba6+ Ka4 Kc6 Nd3 Rb5 Nb4+ Kc5 Bb2 Kc4 c8Q+ Rc7 Rd1 a1B Rf2 a2 Nc6 Rcb7 Ba3 Bd4 Ba7 a1B Qe6+ Kd3 Rff1 Kc2 B3c5 Kb2 Rc1 Rb3 Bcb6 Rd3 Rc5 Bc4 Rf2 Bb3+ Kb5 Ba4+ Ka6 Rbb8 Ng1 Rb7 Rf4 Rbb8 Bd8 Rb5 Be7 Neg2 Nf3 Bg1 Bd8 Nge3 Qg6 Nd4 Bc8 Ndf5 Qe8 Ka3 Bb6 Bd4 Qe6 Kb2 Rh5 Bb4 Rc1 Ng4 Kb7 Bb3 Bb8 Bdf2 Rh6 Ra1 Ba7 Ba5 Ka6 Ba4 Bc5 Bd4 Bcb6 Bdc3 Bf2 Nge3 Bg3 Bd4 Rc5
B1Q2bR1/3P2rP/Nqr1n3/2n2Kb1/R1Npn1rB/1pBP1b2/4k2r/4b1R1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 d4 Ke2 Qd5 cxd5 fxe6 Ke1 e5 Bd3 e4 Be2 Nd7 Bf1 Nb8 Ke2 Kf7 h4 Kg6 a4 Kf5 f4 g5 a5 b5 h5 c5 h6 e5 d3 b3 a6 e3 d6 g3 Kf3 e4+ Ke2 Kg4 f5 g2 f6 c4 a7 b4 f7 b2 d7 c3 Qd2 c2 Ra3 Nf6 Rb3 Bb7 Ra3 Na6 Ra4 Rc8 a8R Rc6 Re8 Nc5 Na3 b1Q Nh3 g1R Bb2 c1B Kd1 Kf3 Ke1 g4 Rb8 e2 Qc3 g3 Nf4 g2 Ne6 Bg5+ Qc1 Rh7 Bc3 Rg7 h7 Qb2 Rh5 Rh1 Nc4 g1R Nc7 Rg4 Na6 Rh2 Rh6 Qb1 Rg6 Qb3 Nb2 Qe6 Nc4 b3 Rd8 Qd6 Rc8 Qc7 Rd8 Qb6 Bg2+ Kg3 Qc2 Kf4 Kf2 e1N Ra8 e3+ Ke2 Nf3 Qc1 Bd6 f8B Nfe4 Be7 Kg3 Rg8 Ba8 Kd1 Kf2 Bd8 Bf8 Bh1 Bh6 Bh4+ Kf1 Qc2 Nfg5 Bf3 Nge6 Bg2+ Kg1 Ke2 Bg5 Kf3 e2 Bh1 Kf1 Qc1+ e1B Qc2 Rgg2 Qc1 Rf2+ Kg4 Rfg2+ Kf5 Rg1 Qf4+ Ke2 Qc7 Bf4 Rg3 Bg5 Qc8 Rgg2 Rh3 Rg4 Rg3 Bb7 Rg1 Nd2 Bb4 Rd6 Bc6 Ba8 Bb5 Bf3 Bc6 Nde4 Ba8 Rc6 Bc3
K5k1/Pr2B2r/4N2p/4Q3/3nRN1r/Bnpn2Bn/1bbR1PqP/R1bb4 b - - 0 1 legal: proof: d4 a5 c4 f5 g4 d5 gxf5 e6 b4 axb4 Bg2 dxc4 d5 Ra3 d6 Ra8 Bd5 exd5 Kd2 Kf7 Ke3 g5 Kd4 c5+ Ke5 b5 a4 g4 e4 g3 f6 b3 a5 g2 d7 b4 a6 d4 Kd5 c3 a7 c4 e5 d3 Qe2 d2 Qe1 d1B Bb2 c2 Nc3 c1B Qe4 Bg7 Na4 Ne7+ Kc5 Kg8 e6 Nec6 e7 Nd4 Kd6 Na6 Nc3 Nc5 Qf3 Nd3 Ba3 b2 Qe2 b1N Nb5 b3 Nc7 b2 Ne6 Nd2 Nh3 g1N Nhf4 b1R Qe5 N2b3 Kd5 Qe8 d8B Nh3 Bc7 Qg6 Kd6 Bc2 Rd1 Qg2 Rd2 h6 Bb8 Rh7 Kc7 Bd7 Kb6 Ba4 Bc7 Rf8 e8R Bh8 Re7 Rd8 Bb8 Rd5 Kb7 Bg7 Ka8 Rc5+ Qe4 Rh5 Bc7 Rh4 f7+ Kh8 f8B Kg8 Bb8 Na5 Re2 Nf5 Rb7 Bd1 Ng6 Be5 Bfe7 Bac2 Rb4 Rb3 Bbd6 Beb2 Rd2 c3 Rd4 Rb5 Bg3 Rb7 Qe5 Nb3 Re4 Nfd4 Ngf4
2r3bb/p2pK1n1/3P1r2/1Bn2QqN/6bk/5Rb1/B1BP2PR/1Nnr2Nr b - - 0 1 illegal: No proof kernel
1N1r1n2/1RB2P2/4b2q/b1KbR2p/Br1P1q2/n1PNQ2r/2rp3N/k1bB4 b - - 0 1 illegal: No proof kernel
2br1RBq/1qbQp1k1/P1rB2p1/1r1N4/nR1K2n1/2rP4/1P5N/1N3nnR b - - 0 1 illegal: No proof kernel
N3r2r/rBnK1B2/1P1p3B/1rbq3p/2R1q1n1/4R3/2P2N1P/kn1Qr1qN b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 Be3 bxa4 Bc1 e5 g4 f5 Ra2 Bb7 Ra3 Be4 Ra1 exf4 Be3 f3 Bd2 f4 Bc1 Bf5 gxf5 Bd6 Na3 Bc5 Nb1 Bf8 Kf2 Ke7 e4 Kf6 b4 Ke5 f6 a5 b5 h5 f7 g5 b6 a3 Bg2 g4 Be3 a4 Qd3 g3+ Kf1 f2 Ke2 f1R Nd2 a2 Qa6 f3+ Kd3 f2 Kc4 a3 Kb5 d3 Rb1 a1R Qa7 a2 Bc5 Nf6 Qa6 Qe8 Be3 Re1 Nh3 f1N Rb4 Bc5 f8N Ng4 Bh6 Rab1 Nf2 a1R Ne6 Ra7 Qa4 Na6 Nc7 Qe7 Qa5 d6 Na8 Nc7+ Kc6 Re2 Rc4 Rb5 Qa3 Rae1 Qc1 Qe6 Bf3 g2 Qd1 g1Q Bg2 Qd5+ Kd7 Re3 Bf3 Qg2 Rg1 Qh1 Rg3 Qg2 Nb1 Nd2 Nc3 Nb1 Ne2 d2 Rh3 Qh1 Ng3 Qg1 Ngh1 Qb7 Rc3 Kd4 e5 Qe4 e6 R3e2 e7 Re3 Qe2 d1Q e8B Qdd3 Qf1 Qc4 Bf7 Qcd5 Rh4 R3e2 Re3 Kc4 Nd3 Kc3 Ndf2+ Kb2 Bg2 Rd2 Qe2 Ka1 Qd1 Rde2 Rhh3 Qf4 Re4 Re3 Rc4 Re4 Re3 Ree8 Be4 Qf3 Bf5 Qfg2 B5e6 Qde4 Bd5 Qgf3 Bb7 Qd5 Be6 Qfe4 Bf7
R1q1r3/2P2b2/3rq1nR/Rp1pB1Kn/1N1rB1B1/2P2qr1/3P1rk1/1N2Q1n1 b - - 0 1 illegal: No proof kernel
r5N1/2N1N3/4qn2/Pnq1B1P1/2R3pp/1KbbBQ1P/3R1nBn/1kb2b1b b - - 0 1 illegal: No proof kernel
1n1N2N1/1b1pb2q/1bbP4/pr1BK2R/1rq4r/2RP1B2/1r1BkP2/r4NQ1 b - - 0 1 legal: proof: e4 g5 a4 b5 h4 gxh4 e5 bxa4 e6 Nc6 d3 Nd4 c3 fxe6 cxd4 e5 Qc2 e4 Qb3 Nh6 Qd1 Ng8 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 Kf5 b4 a5 g3 c5 b5 h5 b6 a3 d5 a2 b7 c4 b8N h3 d6 h2 Qc2 Kg4 Qb2 h4 Na3 h3 Na6 c3 Nc4 c2 Qc3 Qc7 Qe1 Rb8 Ba3 c1B+ Nd2 Be7 Bb2 Bb7 Bc3 Rh4 Bb4 Qc4 Rb1 a1R Ne2 Bb2 Rg1 h1Q Nc5 h2 Nf4 Bc6 Rg2 Rb5 Nd5 Bb7 Rc1 Bd4+ Ke2 e3 Rc3 e4 Ne6 Ba7 Nd8 Bb6 Rg1 Rb1 Bg2 Rb2 Qa1 Bc6 Rgc1 Bb7 R1c2 Bc6 Qg1 Bb7 Nf1 Bc6 Kd1 e2+ Kd2 e1R Bf3+ Kf5 Bh5 Ra1 Bf3 e3+ Ke2 Ke5 g4 Rab1 Nf6 Kf4 g5 Ra1 g6 Ra4 Ba3 Rab4 g7 Bb7 Kd1 e2+ Kc1 e1R+ Kd2 Ra1 Ke2 Nh6 g8B Nf5 Bgd5 Nd4+ Kd2 Nc6 Ng8 Nb8 Ke2 Qg2 Kd2 h1B Ke2 Ra4 Bb4 Qg7 Kd2 Qh7 Ke2 Qb3 Rc5 Qc4 Bd2+ Kf5 Ke3 Rab4 Bg2 Kg4 Rc3 Qa2 Bc4 Qa4 Kd4 Qc2 Ke5 Qc1 Bh3+ Kf3 Bg2+ Ke2 Bcd5 Qc2 R5c4 Qb3 Rf4 Qc4 Rf5 Bc6 Rh5 Bb7 Be4 Bc5 Bf7 Bg2 Bf5 Bgd5 Be4 Bdc6 Bfd5 Bb6 Bf3#
N3NQ2/qB1k2rq/n1PNq2p/1q2p1Rb/1nqRn2P/1rP1K3/3Bn3/2R5 b - - 0 1 illegal: No possible last move, all moves rejected
1r3R1B/4q1pQ/1Nr3r1/r1N1PB2/qn1p2PR/2bPn2K/1qkq4/RBr5 b - - 0 2 legal: proof: c4 b5 b4 e5 f4 exf4 Qa4 a5 Nc3 axb4 Qd1 b3 Nb1 b4 Bb2 Ba6 Bf6 Bb5 cxb5 h5 g4 h4 Bd4 Nc6 Bf2 Nb8 Bg3 hxg3 a4 Ke7 h4 Ke6 e4 Ke5 d3 Kd4 b6 d5 h5 f5 h6 c5 e5 f3 b7 c4 h7 f4 a5 c3 a6 g2 Kf2 c2 a7 c1Q Qc2 b2 Ra5 b3 Ra6 Nf6 Qe2 Qd2 Rh3 Bb4 Rc6 Na6 b8R Bc3 Rh2 Nb4 Ra6 Qe7 Ra1 Rc8 h8B Rc6 Na3 b1Q Rf8 b2 Nh3 g1R Bg2 Rc1 Ng5 Qbc2 Rb8 b1R Rh3 Qa4 Rf8 Rb8 Ra2 Ra1 a8B Qb2 Ne4 Qd2 Bf1 Qb2 Kg1 f2+ Kh2 f3 Bg2 f1Q Rh4 f2 Nc5 Qfd1 Nc4 f1R Be4 Qdd2 Kh3 Rf5 Qg2 Rg5 Qh2 Rg6 Nb6 Ke3 Bf5 d4 Qh1 Nfd5 Bb7 Ke2 Bbc8 Ne3 Bce6 Qd6 Qe4 Kd1 Ra3 Kc2 Qh1 Rab1 Ra1 Qe7 Ba2 Ra8 Qd5 Ra5 Qg8 Rf1 Qh7 Rbc1 Bfe6 Rff6 Bc8 Rfd6 Bce6 Rd8 Bf5 Rb8 Bb1+
R4q2/qP1p3R/2Qnp1Kb/Bq1nP3/rn1P2b1/5RN1/1k2B3/b3bNBq b - - 0 2 legal: proof: g4 f5 b4 fxg4 h3 a5 Bb2 axb4 Ba3 Kf7 Bc1 Ke8 c4 gxh3 Nc3 b5 Ne4 b3 Nc3 b4 Nb1 Ra6 Ba3 Rb6 Bc1 Rb5 cxb5 Ba6 Nf3 Bb7 Ng1 Bc8 e4 Kf7 Ke2 Kf6 Kd3 Ke5 a4 c5 b6 h5 f3 g5 a5 g4 a6 e6 a7 c4+ Ke3 g3 a8R h2 d3 h4 Bg2 c3 Na3 c2 Bh3 g2 Qe2 b2 Rb1 b3 Ra1 b1Q Ra7 b2 Nb5 Na6 Nc3 Bb4 Ra8 Qa2 Nd1 b1Q Ba3 c1B+ Qd2 Bb7 Bg4 h3 Ne2 Rh4 Ng3 Nf6 Bh5 Bd5 b7 Qf8 Bg4 Bc3 Bc5 Nb4 Ra3 B1b2 Qc1 Be1 Ba7 Bb3 Qc6 Ba4 Bb6 Bc2 Ra8 Qa7 Ra3 Ba1 Rc3 Qab8 Ba5 g1B+ Nf2 Bd1 Nf1 Ne8 Ra3 Nc7 Rc3 Qb3 Bh5 Qa4 Bg4 Qb5 f4+ Kf6 f5 Ke5 Be2 Ncd5+ Kf3 Kd4 f6 Qa7 e5 Rg4 Ne4 Be3 f7 Bh6 Neg3 Rh4 Rg1 h1N Rg2 Re4 Rh2 Nf2 Rh1 h2 Ra3 Qg8 f8B Rh4 Be7 Ne4 Bg5 Qf8+ Bf4 Rh5 Kg4 Nd6 Rc3 Rf5 Kh4 Rf6 Kh5 Rf7 Bg5 Rf4 Kg6 Re4 Rg1 h1Q Rg2 Rf4 Rh2 Bg7 Rh7 Bh6 Bh5 Bg4 Bgd8 Bh3 Be2 Bg4 Bdb6+ Qc5 Rc1 Re4 Rb1 Kc3 Rb3+ Kc2 Rc3+ Kb2 Ra3 Qb5 Bg1 Na6 Rc3 Ra4 d4 Nab4 Rf3
N2N3r/r2P2qn/1p1K3n/1r2Pk2/q1Bn3B/3Qp3/3RP1bB/1qqRR2r b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 g6 e4 Kf2 Bd6 Ke1 Be5 fxe5 hxg6 Qb3 g5 Qd1 g4 Kf2 Kd7 Ke3 Ke6 Kf4 c5 h4 g5+ Kg3 f5 d4 c3 a4 c2 h5 b3 a5 b2 a6 c4 a7 e3 h6 b6 h7 f4+ Kg2 c3 d5+ Kf5 d6 g3 Kf3 g2 d7 Nh6 Na3 b1R Nb5 Nc6 Nh3 g1Q Nc7 Bb7 Bg2 Rb5 Bd2 c1Q Be1 c2 Bg3 Qb1 Bh2 c1Q Qd2 Qgd1 Re1 Qg8 Ra2 Qa4 Qd5 Qd3 Rd2 Qdb1 Qc4 Qg7 Rdd1 Rab8 a8R Rbc8 Ra6 Ra8 Rd2 Ra7 Na8 Qad1 Ra1 Qa4 Bh1 g4+ Kg2 g3 Kf3 g2 Ng5 Qbb2 Ne6 Qbb1 Nd8 g1R Bg2 Rh1 Qd4 Ne7+ Qd5 Ng6 Red1 Nf8 Re1 Rg8 h8B Nh7 Red1 Qg5 Bf6 Qg7 Bh4 Rh8 Bh3+ Ng4 Kg2 f3+ Kg3 f2 Kf3 f1N Re1 Bc8 Qd4 Ng3 Qd3+ Ne4 Bg2 Nh6 Red1 Bb7 Bh3+ Kg6 Be6 Bc6 Bc4 Kf5 Qd4 Nd6+ Qd5 Kg6 Kf4 Ndf5 Qd3 Bg2 Re1 Bh3 Ke4 Nd4 Red1 Kh5 Re1 Kg4 Red1 Rb3 Kd5 Bg2+ Kd6 Rb4 Re1 Rb5 Raa2 Ng5 Rdd1 Nh7 Qa3 Kf5 Rad2 Rb4 Qc3 Rb5 Qd3+
r1R2q2/2BR1B2/p5Q1/2n1BNpn/n1q1Pr1n/k1N1r3/3P2P1/bK1R1r1q b - - 0 1 legal: proof: f4 b5 c4 g5 a4 bxa4 f5 d5 f6 dxc4 h4 Bf5 h5 Bg6 hxg6 exf6 Nc3 f5 Nb1 f4 e4 Ke7 b4 Kd6 g7 h5 b5 Kc5 b6 Kb4 b7 f5 Nc3 c5 Nb1 a6 Nh3 a3 Rh2 h4 Ng1 h3 Ra2 c3 Rh1 c4 Qf3 c2 Bb2 c1R+ Qd1 c3 Bd3 f3 Bb5 f4 Ne2 c2 Rg1 h2 Nbc3 h1Q Ba4 f2+ Kf1 Rh3 Nb1 Nd7 b8B Ne7 g8R Nb6 Nbc3 Re3 Be8 Nf5 Bg6 Bg7 Ba1 Na4 Nd4 Nh4 Bh5 Qf8 Bg4 Rb1 Nf5 c1Q Rc2 a2 Rh8 Ka3 Bh5 Rb7 Rb2 Rf7 Bc7 Qc2 Rb7 Qb3 Ne2 Qc4 Bae5 a1N Qc2 Rf6 Bf7 Nb3 Qb1 Nbc5 Qb6 Qe7 Rc8 Qf8 Ng3 Rf5 Qg6 Bh8 Bed6 Ba1 Be5 Rd3 Nc3 Rf6 Ke2 f1N Kd1 f3 Kc2 f2 Bcd6 Re3 Kb1 Rf4 Nf5 Ng3 Rd7 Nh5 Rd1 f1R Bc7
2Rr4/1B4PN/Npr1rBK1/5nQn/pP2b1k1/1NB3r1/P1bn3R/b1br4 b - - 0 2 legal: proof: e4 c5 c4 f5 d4 fxe4 h4 cxd4 c5 g5 c6 gxh4 Qf3 b6 Qg4 Qc7 Qd1 Qb7 cxb7 Bg7 Ne2 Bh6 Ng1 Bf8 Kd2 Kf7 b4 Ke6 g4 h5 f4 d5 g5 Kf5 g6 e5 Be2 a5 Qb3 e3+ Kd3 e4+ Kc2 d3+ Kc3 d2 Kd4 d1R+ Bd2 a4 Rh3 Nf6 Qa3 Re1 Bb5 e2 Rd3 h3 Ke3 d4+ Kf2 h2 Kg3 h1B Kh4 e3 Be8 Rg8 Qb2 Nc6 b8B Bg7 Na3 Be4 Qb1 Ne7 Rb3 d3 Bc3 d2 Rb2 d1R Bc6 Bd7 Bbe5 Rad8 Nb5 Bh6 Kh3 h4 Nc7 Nh5 Bb7 Bb5 Bh8 Bbd3 Qc1 Bc2 Bhf6 R1d6 Qd2 Rc6 Na6 Rd1 Rab1 e1R Nf3 e2 Rc1 Rg7 Qe3 Rgg8 Nd2 Rg7 Kh2 h3 Nb3 Kg4 f5 Bg5 Bfd4 Rgg8 f6 Nf5 f7 Rg7 f8N Rg8 Qf2 Bd2 Bf6 Bh6 Rcb1 Bc1 Nh7 Rg7 Qf1 Rgg8 Kg1 h2+ Kf2 Bcd3 Rd2 Bc2 Rb2 Rg7 Rd7 Rgg8 Rc7 Rg7 Rc8 h1N+ Kg1 N1g3 Kf2 Rgg8 Qh1 Nf1 Qg1+ Kh3 Qg5 Nd2 Qh6 Kg4 g7 Rge8 Qe3 Rg1 Qc5 e1B+ Ke2 Nd6 Ke3 Rg3+ Kd4 Re7 Qe5 Ree8 Qe7 Bf2+ Ke5 Bd4+ Ke6 Nf5+ Kf7 Be5 Kg6 Bd4 Qe5 Ree6 Qc5 Be5 Qe3 Bd4 Qg5+ Kh3 Ba8 Bb1 Nf8 Nc4 Be1 Bbd3 Rg2 Ba1 Nh7 Bc2 Bc3 Nd2 Bb7 Re3 Qh6 Rf3 Rf2 Kg4 Rh2 Rg3 Qg5+
2n1N2r/2P2P2/KQ2N2n/1pbR2bp/2r2bb1/kPR1r2n/1b3B2/1B1Br2R b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 g5 e5 gxh4 a5 Qb6 e6 fxe6 axb6 e5 Qf3 e4 Qg4 Nf6 Qd1 Ng8 Ke2 d5 g4 Kd7 c4 Kc6 f4 Kc5 b7 Kb4 c5 h5 f5 a5 b3 e5 f6 a4 g5 h3 g6 e3 Kd3 e4+ Kc2 d3+ Kb2 d2 f7 h2 c6 e2 c7 e1B g7 d4 Na3 e3 Bh3 d3 Nc4 a3+ Ka2 e2 Bd7 Nh6 g8B Bc5 Rb1 Bg3 Na5 e1B Ne2 Bf4 Bh7 Bh4 Nc4 Ra4 Bg4 Bhg5 Nd4 Nc6 b8R Ne7 Qg1 d1R Nd6 d2 Ne8 Re1 Bd1 Bg4 Rd8 Nc8 Ne6 Re5 Rd5 Re3 Ka1 a2 Kb2 a1B+ Kc2 Re1 Bb2 Re4 Bd4 Re3 Rc1 Ka3 Bd3 Bb2 Bg6 Re4 Bf2 Rac4+ Kd3 Re1 Rc3 Ree4 Qg3 Re5 Qe3 Ree4 Qd4 Re3+ Kc2 Bb4 Qb6 Bc5 Be2 d1R Be4 Re1 Bd1 Na7 Kd2 Nc8 Bb1 Bce7 Rg1 h1N Rf1 Ng3 Rh1 Ne2 Kc2 Ng1 Kd2 Nh3 Kc2 Re5 Kd3 Rc6 Kd4 R5e3 Qb7 Ra6 Qa7 Bb4 Qb7 Ra4 Qa7 Ba5+ Kc5 Bb6+ Kc6 Bc5 Qb6 Rd4 Kb7 Rc4 Ka6
K5Q1/1Rbp1b1b/2n2nnR/p3N3/R2Pn2P/BPNbn1rB/3n4/2Bk3q b - - 0 1 legal: proof: g4 e5 f4 exf4 a4 a5 Ra3 b5 Ra1 bxa4 g5 Ra6 g6 Rb6 c3 Rb4 cxb4 hxg6 b3 g5 Ra2 g4 Ra3 Be7 Ra1 Bf8 Kf2 Ke7 d4 Kf6 e4 Kg5 h3 c5 b5 f5 b6 a3 e5 c4 b7 c3 e6 c2 e7 g3+ Kf3 a2 e8R g2 Re5 Nc6 b8B Bb7 Be2 Bd6 Re7 Nf6 Qd2 Rg8 Qd1 Bc7 Ba3 c1N Bb5 Ne2 Bc1 Nc3 Re2 Nce4 Ba7 Qa8 Rc2 g6 Ne2 g1N+ Kg2 Nf3 h4+ Kg4 Na3 g5 Qf1 Nfd2 Nc4 f3+ Kg1 f4 Kh2 f2 Ba4 Kf3 Rb2 g4 Qg1 f1B Nc3 Bd3 Bc5 g3+ Kh3 g2 Rc2 Ba6 B5a3 Rg3+ Kh2 Qb7 Bb5 Qa8 Nd6 Bc4 Nf7 Be6 Bf1 Bd3 Nd6 Bf7 Nc4 Nf2 Ne5+ Ke3 Be2 Bh7 Bg4 f3 Bh3 Qb7 Qf1 g1N Qg2 Ne2 Rg1 N2e4 Re1 f2 Rg1 Rf3 Qg8 f1B Rg6 Kf2 Rh6 Ke1 Rh5 Ng1 Rh6 Bd3 Kg2 Re3 Kh2 Ngf3+ Kg2 Nf2 Kg3 Nf2e4+ Kf4 Qa8 Nb5 Qb7 Rc5 Kd1 Nc3+ Ke1 Rb5 Qa8 Rb1 a1N Rb7 Nc2 Rb2 Nc4 Ra2 Nfd2 Bb4 Rg3 Ra4 N2e3 Bf8 Ndf1 Bfa3 Nfd2 Rb5 Bd8 Ng4 Nc5 Nd1 N4e5 Nc3 Ne7 Rbb4 Qg2 Rb6 N5c6 Rb7 Na7 Ke5 Nac6+ Kd6 Ng6 Ne5 Qh1 Bg2 Ne6 Bf1 Ng5 Kc5 Bc7 Bh3 Ndc4 Kb5 Nge4 Ka6 Ncd2+ Nc4 Nb4+ Ka7 Nc6+ Ka8 Nf4 Nb1 Kd1 Ne5 Ng6 Nc3+
1BRRB2n/ppr2Pr1/N5nk/KP1n3N/3rPQr1/n3b3/n3N1R1/2n2b2 b - - 0 1 illegal: No proof kernel
3q1q2/1qQr1b2/1RN5/kBBnPP1N/r6P/np5p/1Rb2p2/bBn2K1R b - - 0 1 illegal: No proof kernel
1q1N2b1/2BBn3/1bRQ2bq/p2r1Pn1/1R2N3/2Pp4/2p2qnP/K2Nr1kR b - - 0 1 illegal: No possible last move
bRn3b1/Nn5q/1N2P3/3Bppk1/3Q2B1/RNq1P3/1PB1Kpqr/b1r2r2 b - - 0 1 illegal: No proof kernel
1B1QBNb1/4b1q1/n2nPb2/1Pp2R2/p3r2k/1N1r1BPn/r2RRpK1/4q3 b - - 0 1 illegal: No possible last move, all moves rejected
Rr1N2q1/r3rn2/bpN1P1pq/p2K3k/P4P2/2B1BN2/3b1qbQ/RB5n b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 g6 hxg6 Qd3 g5 Qf3 g4 Qg3 fxg3 Kd2 Kf7 Kd3 Kg6 Ke4 d5+ Ke5 a5 a4 g2 h4 b6 e4 d3 f4 d2 c4 d1R c6 g3 c7 d4 c5 d3 c6 d2 Nh3 g1Q Ng5 g2 Ne6 Nf6 Bd3 Ba6 c8N Re1 c7 d1B Bd2 Ra7 Be3 Qf2 Nd2 g1Q Nf3 Qgh2 Bb1 Kh5 Ne7 g6 Nc6 Bb4 c8Q Qg8 Ned8 Bd2 Qh3 Ng4+ Kd4 Re2 e5 Nd7 Qg3 Qh3 Qh2 Re1 Ke4 Bde2 Kd4 Bf1 Ke4 Bg2 e6 Nde5 Kd4 Nf7 Kd5 Rc1 Rd1 Ngh6 Rh1 Nf5 Rd1 Ng3 Rh1 Kg4 h5 Rd1 h6 Kh5 h7 Rc1 Nb8 Rcc7 Nbc6 Re7 Rd1 Nh1 Rc1 Qg7 Rc3 Rhe8 h8B Qg8 Bhd4 Kg4 Rc4 Qh6 Bc3 Rf8 Nd4 Rfe8 Rc8 Rf8 N4c6 Rfe8 Qg1 Kh5 Ra8 Rf8 Nb7 Rc8 Nbd8 Rb8 Qh2+
1Kn2N2/4b1QR/PNp2Pq1/q1k2n1N/B4p2/2bprP2/2Rn2r1/rbB1B3 b - - 0 1 illegal: No proof kernel
N1Nbr3/1B1kP2n/3ppb2/3N1n2/q3RB2/PB2P1bq/K1R1Q2p/1n2r2r b - - 0 1 illegal: No proof kernel
5B1N/1Kn1P2b/p2kp1R1/4rrR1/2N3pP/n2NBr2/1P2q1Bb/1nq2qQ1 b - - 0 1 illegal: No proof kernel
3Q3b/1KBPrq2/1RBb3r/3N1RPn/5p2/2rBq1n1/kpPRn1p1/N2b4 b - - 0 1 illegal: No proof kernel
7K/R2p4/rNkP1p1P/2R1r1N1/1nB2PNQ/pn1b3q/2BRb1r1/2qb2q1 b - - 0 1 legal: proof: g4 h5 b4 hxg4 a3 b5 Ra2 c5 Rb2 cxb4 Ra2 b3 Ra1 b2 d4 e5 d5 b4 Be3 b3 Bd4 Bb4+ axb4 exd4 Kd2 a5 Kd3 g5 Ke4 f6 Kf5 a4 Kg6 d3 Kg7 g3 f4 g4 h4 g2 c4 g3 e4 d2 h5 Na6 e5 Ke7 d6+ Ke6 h6 Bb7 c5 Kd5 c6 Nb8 b5 Na6 e6 Nb4 c7 Ne7 c8N Qe8 b6 Kc6 Qh5 d1B Na3 b1B Nc4 b2 Rh2 Ra6 Ne3 Bd3 Nf3 g1R Rd2 b1Q Ng4 g2 Ng5 Qc1 Qh4 Qh5 Raa2 Ba8 b7 Re8 b8R Nf5+ Kh7 B1e2 e7 Nd4+ Kg7 Bd1 Nb6 Nb3 Rb7 a3 Ra7 B3e2 Rd5 Bd3 Rd2 B1e2 Nh2 Qf3 Ng4 Qh3 Re5 Rh1 Rf5 g1Q Kh7 Rg8 e8B Rh2 Bh5 Re8 Bg6 Re5 Kh8 Rg2 Bh7 Kc5 Bg6 Baf3 Bh7 Kc6 Bg6 Bb1 Bh7 Bd1 Bc4 Bd3 Bg6 Bfe2 Bh7 Re7 Rd5 Re5 Bf5 Bf1 Bh7 B3e2 Bc2 Bd3 Rb5 Bfe2 Rc5+
2N5/2pb3n/b4Nr1/1qPnkNb1/1r1q1p2/r4p2/2KP2Pn/RRQ2RBB b - - 0 1 illegal: Other
1bk1N3/pnr2B1K/pbRP3p/q1NR4/1q1P1bqR/B2n3P/3Bn1r1/3Q4 b - - 0 1 legal: proof: c4 d5 g4 dxc4 a4 f5 d4 fxg4 a5 Bf5 a6 Bd3 exd3 bxa6 Ke2 Kd7 Ke3 g5 Ke4 e5 Kf5 c3 b4 g3 f4 c5 b5 h6 Kg6 g4 d5 e4 f5 c2 d6 g2 b6 e3 b7 g3 f6 e2 f7 e1Q Nd2 c4 Nb3 c3 Be3 c1N Nd4 c2 Ra2 Rh7 Rb2 Nc6 b8R Qb4 Nge2 g1B Rb6 g2 Nf4 Nf6 Nfe6 Na5 Nf5 Nb7 Nfg7 Ng4 Rc6 Nf2 Be2 Qc7 Bh5 Ne2 Ra2 c1B Ra5 Qd8 Rd5 Qda5 Bf4 Be7 f8B Bd8 Be7 Bc7 Bf6 Rg8 Bb2 Kc8 Ba3 Be3 Bg5 Bb6 d4 Nd3 Bd2 Be3 Nc5 g1Q+ Kf6 Bf4 Ne8 Rd7 Bf7 Qg3 Kf5 Qf3 Kf6 Rg2 Kf5 Qg4+ Kf6 Bg5+ Kg7 Bf4+ Kh7 Kd8 Rf1 Bb8 Rf3 Re7 Rh3 Rc7 Rh4 Kc8 h3
1N3b2/pb1Pp3/q2r2R1/1PB1K3/Pr1N1Rpn/B3n2b/5rBn/R3kqQ1 b - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 d5 c4 bxc4 f3 dxe4 Qb3 exf3 Qc2 Nc6 Qd1 Nb8 Kf2 Kd7 Ke3 Ke6 Ke4 g5 b4 c5 a4 f5+ Ke3 Ke5 h4 c3 b5 f2 h6 g4 h7 f4+ Ke2 Ke4 d4 c2 d5 c4 d6 c3 d7 Nh6 h5 Qb6 Qd2 Qa6 Bh3 f1N Bg2+ f3+ Kf2 Nc6 Qd1 Bb7 Rh2 Ne3 Kg3 Nd4 Ba3 c1Q Ne2 c2 Qg1 Kd3 Kf4 f2 Nbc3 Kd2 Ke5 f1B Ne4+ Ke1 Nc5 Nhf5 h6 Nh4 Rh1 Rg8 h8B Rg6 h7 Rd6 Bg7 Qd1 h8R c1R Rh6 Rc4 Rg6 Rb4 Rh3 Rc8 Rf3 Rcc6 Rf4 Qb1 Ne6 Rc2 Nd8 Rcb2 Nc6 Rd2 Nc1 Rf2 Nb8 Qd3 Nb3+ Qd1 Na5 Qb1 Nac6 Qc1 Ke4 Ndf3+ Bd4 Nh2 Ke5 Qd1 Bc5 Qb1 Nd4 Qd1 Bd5 Qc1 Qg3 Bh3 Bg2 Qd1 Bf1 Qc1 Qg1 Qb1 Bc1 Qd3 Bg2+ Qf1 Ba3+
KQBq2bB/p1p4B/1r1PpN2/4R3/R3P1bN/2k1r1bP/5qn1/1rnn2R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 c4 gxf4 axb5 d5 g5 dxc4 Qb3 Qd5 Qh3 Qd8 Qg4 hxg4 Kf2 Kd7 e4 Kd6 b4 Ke5 b6 Kd4 b5 f5 b7 f3 b6 c3 g6 c2 g7 f4 d3 g3+ Ke1 f2+ Ke2 f3+ Kd2 g2 Nc3 Nc6 b8Q Nb4 b7 Rh3 Bb2 c1N Ra4 Nf6 g8B Bg4 Bh7 Nd5 Be2 Rg3 h3 f1Q Bd1 f2 Nf3+ Kc5 d4+ Kc4 Nh4 g1R Ba1 Nf4 Nd5 Ng2 Nf6 Re3 d5 Bh6 d6 Bf4 Bf3 Bg3 Be2+ Kb3 Ba6 Nba2 Bd4 Nc3 Be5 Qb5 Bd4 Rge1 Rg1 f1B Be5 Qc5 Bd4 Nd1 Be5 Na2 Bd4 R3e2+ Kd3 Qb6 Bc3 Qf2 Bb2 Re3+ Kd4 Nc1 Kc5 Kc2 Kc6 Bc4 Qc8 Nb3 b8R Nc3 Kb7 Rb1 Nd5 Nd1 Bh8 Kd3 Nf6 Kc3 Bb5 Bce6 Bd7 Bg8 Be6 Qf8 Qe8 Nc1+ Qb5 Qd8 Bef5 Qd7 Re8 Qd8 Bc8 Rb8+ Kc6 Bf7 Qb7 Ba2 Qa8 R8b2 Qb8 Bb3 Kb7 Bg8+ Ka8 Rb7 Rd4 R7b6 Ra4 Bf7 Rg8 e6 Rg5 Bg8 Re5
1r2B2Q/pPP1P3/q1b2bb1/qRn3r1/Bp3Rr1/3n4/1kNKp2B/2R3Nn b - - 0 1 illegal: No proof kernel
r1R4n/2nRR3/2b1P3/2B2p1K/pn2qBNQ/n4r1P/1k2nPNp/b1N3b1 b - - 0 1 illegal: No proof kernel
R1b5/1kQ1pR1r/b1bpq3/n1P1Nnb1/1p4PP/2B2N1r/2BR1B2/K2b2r1 b - - 0 1 illegal: No proof kernel
1nKRrrRn/3p1b2/7b/4QqPB/1P2pN1r/R1P1bBp1/kBN3b1/5b2 b - - 0 1 illegal: No proof kernel
Rr1B1b2/3Kn3/2RN1r1B/1ppp1P2/r1PN2Q1/PB1Rnr2/1q2nkb1/2b5 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b3 e5 b4 axb4 dxe5 f5 Kd2 fxe4 Ke2 Ke7 Ke1 Ke8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 b5 h4 c5 c4 g5 f4 e3 h5 g3 h6 g4 a3 e2 h7 e1B e6 b3 e7 g2 Kd6 Ke4 f5 g3 Rh6 b2 Rh5 Nh6 Qb3 Ra4 Rg5 Ng4 Nf3 g1R Qc3 g2 Rg8 Nc6 Be2 Bb7 Nd4 Ne3 Bd1 Bd2 Bb3 Rd1 Rg3 g1N Rg6 Ne2 Qc2+ Kf4 Nc3 b1R Ne4 Rg1 Rf6 Rg6 Qd1 Qc8 Re6 Rf6 Qg1 Rg8 h8B Qa8 Kc7 d6 e8R Ne7 Kd7 Qa7 Bb2 Rf1 Ra8 Rf3 Rd1 Bc1 Bg7 Qa5 Qg2 Qc3 Rd3 Qc2 Bc3 Qb2 Ba5 Rh8 Bd8 Bd5 Nf2 Be4 Qg1 d5 Rc6 Rg8 Qd1 Kg3 Bh6 Kg2 Nh3 Rh8 Ng5 Kf2 Nf7 Bg7 Bb6 Rb8 Nd6 Bf8 Ba5 Rf4 Bd8 Bg2 Qh1 Rf3 Qh3 Qd2 Qh5 Qb2 Qg4
1RBR1N1r/3Nn1R1/2r1p1b1/4N3/rb1b1qpP/p1B2P1P/K1n1Q2r/6kn b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 a5 fxe4 a6 h5 g3 h4 gxh4 bxa6 Bb5 a5 Bf1 a4 Kd2 Kf7 c4 Kg6 Kc2 Kf5 b4 a5 Kb2 g5 c5 d5 b5 a3+ Ka2 a4 c6 g4 h3 d3 f3 d4 b6 e3 b7 Kf4 c7 Kg3 Qc2 e2 Qc5 Kf2 Qc6 e1R Qd7 d2 Qe8 d1R Bc4 d3 Bf4 d2 Qb5 Na6 b8N Re2 Qc5+ Qd4 Be5 Bf5 c8R e6 Rc7 Bg6 Nd7 Ne7 Qb5 Qf4 Bc3 Rc1 Qb2 d1N Nd2 Kg2 Rb1 Nf2 Bd5 Ra7 Nc4 Kf1 Rh2 Nh1 Nce5 Rf2 Bb7 Nb4+ Ka1 a2 Ne2 Rg2 Bc8 Ra6 Qd2 Nc2+ Kb2 a1B+ Ka2 a3 Rb8 Ra4 Qd3 Qh6 Nf4+ Kg1 Qe2 Bb2 Ba5 Bd4 Bc3 Nc6 Ra7 Bb4 Rc7 Ne7 Ra7 Be4 Nfg6 Qf4 Ngf8 Bg6 Nc5 Nf5 Rg7 Ne7 Ncd7 Rg3 Rf2 Rg2 Qb5 Rh2 Rd2 Ne1 Qe2 Rc2+ Bb2 Rc6 Bc3 Nc2 Nc5 Be3 Rd8 Bd4 Ncd7
n1b4N/R3b2p/bPR2rq1/r2k1n2/1P3BBn/pQP3p1/2n1BN2/r2N1K2 b - - 0 1 illegal: No proof kernel
1R1r4/r2BB1pp/PK1bN1k1/PpPR1Q2/1rb3qn/5nB1/1n4rb/2RN4 b - - 0 1 illegal: No proof kernel
qn1Rk3/n2r2pp/PB2B2B/pnb2bPN/rnK1Q1R1/5rP1/4N3/2b3N1 b - - 0 1 illegal: No possible last move, all moves rejected
1B3B2/rnrN1Pkn/p6R/1pr2bn1/1Pp1rBq1/2KP4/1R1N1b2/b2R2Q1 b - - 0 1 illegal: No proof kernel
5rr1/1K1pNPR1/n2Pq1b1/Bb1Qp3/rn3b2/1BP1Rk2/pN6/1BnN2r1 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kd5 Kf4 g4 h5 d4+ e3 g5 e5 g6 a5 c3 h3 g7 a4 b6 b3 b7 h4 Na3 b2 Bd3 b1B Nc4 a3 Nb2 Na6 b8N a2 Nc6 h2 Ne7 h3 Kd6 Nf6 g8B Qe8 Bb3 Bh6 d5 Rf8 f3 Kg3 f4 e2 f5 e1N Be3 Bf4 Bb6 Qf7 Be4 Nd3 Ba5 Nc1 Qd4 Bd3 Qc5 Bb5 Bb1 Bb7 Qd4 Rg8 Qd1 Raf8 Qd4 Nb8 Kc7 Qe6 d6 Be4 Qd5 Na6+ Kb7 Kg4 Ne2 Bed3 Re1 h1R Ng3 h2 Nf1 Rg1 Re4 h1R Ne3+ Kf3 Ned1 Rhh8 Na4 Rh4 Nab2 Ng4 f6 Ne3 f7 Nc2 Ra4+ Kg3 Rd4 Bg6 Re4 Ncb4 B1c2 Ne2 Rc1 Rg4 Bb1 Kf3 Rc2 Nc1 Rh2 R4g2 Rh7 Rd2 Rg7 Rd4 Bc7 Nbd3 Bb6 Ra4 Ba5 Ndb4 Re3+
8/Kbp2n2/1P3rnn/3NbPbR/1P1r1n1N/B2p1B2/Q3pkq1/3Br1NR b - - 0 1 illegal: No proof kernel
5qBb/7Q/1q1qrP2/N1bPpn1K/1nr2R2/2NRP1B1/p3N1p1/1R1q2qk b - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 Bh3 bxa4 Bf1 f5 h3 fxg4 Ra3 g3 Ra1 g2 Ra2 g5 Ra1 g4 Qc2 g3 Qd1 Bg4 hxg4 Bh6 Nc3 Bg7 Nb1 Bf8 b4 Kd7 f4 Ke6 d4 Kd5 g5 Ke4 d5 h5 g6 a5 e3 c5 Ke2 a3 g7 c3 f5 a2 b5 h4 b6 a4 b7 c4 Nh3 g1Q Qd2 a3 Rh2 c2 Rg2 c3 Qd1 Nh6 g8N Ra4 Rf2 Rc4 Qd2 Qb6 Nf4 h3 Rg2 h2 Qe1 h1Q Bb2 c1Q Rf2 c2 Be5 Qhh2 Bh3 Nc6 b8R Nb4 Qc3 e6 Ne7 g2 Nc6 Bc5 Qb3 Re8 Na5 Qb2 Bd6 Qf6 Rb7 c1Q Qc2+ Nd3 Bg4 Qf8 Bh5 Qg3 Bf7 Re7 Bg8 Q3h2 Qc3 Nb4 Qh8 Qg3 Qh7 Re8 Nh3 Qf4 Bc7 Q4d6 Nf4 Re7 Rf3 Qgd1+ Kf2 Qg1+ Kg3 Qcd1 Kh4 Re8 Rh3 Re7 Rh2 Kf3 Nc3 Kf2 Rb1 a1B Rh3 a2 Rf3+ Ke1 Kh5 Re8 Nce2 Bh8 f6 Nf5 Nc3 Re7 Nfe2 Re8 Rh3 Kf1 Rh4 Kf2 Rd4 Re7 Rd3 Re8 Bd8 Kf1 Rg7 e5 Rg4 Re6 Be7 Qa8 Bf8 Kf2 Bh6 Qaf8 Bf4 Qgf1 Nc1 Kg1 N1e2+ Kh1 Bg3 Qg1 Rf4
2n1B2R/RN4q1/2NqP1r1/1RpnPP2/bn1Q4/1pn1Bk2/1p1K4/n1r2Bb1 b - - 0 1 illegal: No proof kernel
1n5q/4b3/RpkPrN2/2q2b1P/npB4b/2bN4/P2BRpr1/1QK1bB1R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 Kd7 e4 c5 d4 f5 Kd2 g5 e5 c4 h5 c3+ Kc2 b6 d6 g3 d5 g4 Bb2 f3 Rh3 f4 Ne2 f2 Qd2 g2 Qd1 g1B Rf3 g3 Na3 g2 Qd3 Nf6 Rg3 f3 Rg6 Ne4 Rb1 Rg8 Nb5 Nc5 Nc7 Na4 Ne8 Be7 Kc1 c2 Re6 Qc7 Nf4 Qc5 Bc3 Rg6 Be2 f1Q+ Be1 Qff2 Bf1 Qfd4 Bd2 Bf2 Ra1 g1B Nf6+ Kd8 d7 Kc7 d8R Rg2 d6+ Kc6 Qf5 Bh4 Nd3 Bgf2 Rd7 Qdc3 Ra7 Be1 Ra6 f2 Qg6 Bf8 Re8 Bf5 e6 Q3d4 e7 Qde5 Ng8 Qh8 Nf6 Bg7 Rd8 Ra7 e8B+ Rd7 Bf7 Re7 Bc4 Re6 Re8 Bf8 Qg4 Be7 Qd1 Nc3 Kb2 c1B+ Kc2 Bb2 Qb1 Na4 Kd1 Bc3 Kc1 Bd8 Re7 Re4 Re5 Be7 Re6 Reg4 Re3 Re4 Re2 Re6 Kc2 Qd4 Qc1 Rg6 Bh3 Qc5 Qb2 Rg3 Rd1 Rg8 Qb1 Rg6 Be3 Bed2 Rh1 Rg5 Bf1 Be1 Kc1 Rg2 Bd2
2b5/1Nq1Pnk1/np2N2r/n2p1Bb1/4n2p/r2R1Q1K/1PR3nP/qB1BN3 b - - 0 1 legal: proof: d4 e5 f4 exd4 a4 g5 a5 gxf4 a6 Bb4+ Bd2 Bd6 Ba5 Bf8 Bb6 cxb6 axb7 Bd6 Qd3 Ba3 Qd1 Bf8 Kf2 h5 e4 d5 g4 f5 Kg2 Kf7 c4 a5 e5 h4 g5 a4 c5 f3+ Kh3 d3 g6+ Kg7 c6 a3 c7 a2 e6 d2 e7 f2 Nf3 Na6 b8N f4+ Nd7 Rh6 Nd4 f3 Be2 f1N Na3 f2 Nac2 Ng3 Rc1 a1Q Ne1 f1N Rc2 Ne4 Rg1 Ra7 Rg3 Ne3 Bg4 Nc4 Nc5 Na5 Nb7 Ra8 Qf3 d1N Bf5 Ne3 Ne6+ Kh8 Bg4 Ng2 Bh5 Bg7 Bg4 Bf6 g7+ Kh7 Bh5 Bg5 Bg4 Ngf6 g8B+ Kh8 Bh5 Nd6 Bh7 Nf7 Bd3 Ne4 Bg4 Bd7 c8B Kh7 Bf5+ Kg8 Be2 Qc7 Bd1 Kh8 Qg4 Ra7 Rd3 Kg8 Qf3 Ra8 Nd4 Be6 Bd7 Kg7 Ba4 Bc8 Ne6+ Kg8 Bb3 Kh8 Ba2 Kg8 Nf8 Kg7 Bb1 Nb8 Nh7 Nac6 Rf2 Ra3 Nf8 Na6 Rc2 Na5 Ne6+
2q2N2/3pPb1b/1r1b1K2/1k3p2/5pPR/1bn1BBN1/n1Nq1Pbr/R2BQ3 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Qd2 cxd4 Qg5 e5 Qf4 exf4 Kd2 a5 Kd3 h5 Ke4 a4 Kf5 a3 c4 d3 g4 a2 b4 h3 e4 d2 e5 d1B e6 h4 b6 h2 b5 h3 b7 Ra6 c5 Rb6 c6 Ke7 c7 Kd6 Bd2 Kc5 Nc3 Na6 b8N Bd6 e7 Bb7 c8B Bg2 Nb1 Nb4 Be2 Nf6 Bb7 Qc8 Nc6 Bb3 Ne5 Ne4 Na3 Nc3 Kf6 Be4 Nc2 Bh7 Kg5 f5 Ng6 Bf7 Bd1 Bb3 Bbf3 Kc4 Rb1 a1Q Ne2 Qb2 Kf6 Nba2 Ng3 Qc1 Be3 Qd2 Nd4 Kc5 Nf8 Bf7 Nc2+ Kc4 Rf1 h1B Ra1 h2 Re1 Bg2 Rh1 Rb7 b6 Kb5 Rf1 Rb8 b7 h1B Rg1 Ra8 Re1 Ra6 b8Q+ Rb6 Qa7 Bhg6 Qa3 Rh2 Qc1 Bh7 Rg1 Bf1 Rg2 B1c4 Rg1 Bg2 Rh1 Bb3 Qb1 Rh5 Rh4 Rg5 Rh6 Rh5 Qc1 Rh2 Rh4 Qe1 Qd2 Qe2 Qe1 Qd3 Rh3 Qd2 Rh4
3NRBn1/1qP3n1/P5Kb/p1n2N1N/bR3Qpr/pPn1q3/r1Rk3n/3B4 b - - 0 1 illegal: No proof kernel
kN1rqb1Q/1Np1b1nr/3B2RR/3P2p1/1qPN4/p2B2PB/b5bK/6nb b - - 0 1 legal: proof: b4 d5 c4 b5 Qb3 e5 Qc3 h5 a4 h4 axb5 h3 f4 exf4 g3 d4 Ra3 Qg5 Qf3 Qd8 Rc3 dxc3 Qg2 hxg2 Kf2 Kd7 h4 g5 e4 a5 d4 f5 e5 f3 b6 Kc6 b5+ Kb7 e6 a4 h5 c2 e7 f4 e8B a3 d5 Nf6 h6 Nh5 h7 Ng7 Rh3 Nc6 Be3 c1Q Bg6 Qe8 Rh2 Ne5 Be4 Bf5 Nd2 Qb1 Rh6 Rd8 Bed3 Ka8 Bc5 Qb4 Bd6 Bg6 Ne2 g1B+ Ke1 Bc5 Nd4 Be7 Bh3 f2+ Kf1 Nf3 Kg2 Ng1 Ne4 f1B+ Kh2 Bf5 Rg6 f3 Rh6 f2 b7+ Ka7 b8R Bg2 Rb6 f1B Rc6 Ka8 b6 Bh1 Rg6 Bfg2 b7+ Ka7 b8N Ka8 Nd2 Bfe4 N2b3 Bf5 Na5 Bfe4 Be2 Bb1 Bd3 Ba2 Nb7 Bf8 Be5 Bce7 Rcf6 Rg8 h8Q Rd7 Bd6 Rd8 Qh7 Rh8 Qg8 Rh7 Qh8 Ka7 Rh6 Ka8 Rfg6
2R3K1/nP2B3/R3pRNr/q1b3nB/2kbPqp1/b1Q2b1B/3b1pPN/2r5 b - - 0 1 legal: proof: f4 b5 b4 Ba6 f5 Bc8 a4 bxa4 f6 a3 Ra2 Nc6 Rb2 a2 Na3 a1N Rb3 Nb8 c4 d5 h4 dxc4 h5 e6 h6 Nc2+ Kf2 Nd4 Nb5 Nf3 Na3 Ne7 fxe7 Nh2 Ke1 Kd7 Rf3 Ng4 Rc3 Nxh6 Rg3 Ng4 Rb3 Nh2 Kf2 Kc6 Kg3 Kd5 Kf4 h5 Kg5 c5 d4 f5 Kg6 a5 Kf7 g5 e8B f4 e3 h4 b5 f3 b6 f2 Rb2 c3 Bd7 a4 Nh3 c4 Rg1 c2 Rb5+ Bc5 Qd2 c3 Qd3 Nc6 Be8 Na7 Nb1 a3 Nd2 a2 Ba3 a1B Nf3 c1B Be2 c2 Qc3 Rh6 Kg8 Bd2 b7 c1B Rb6 Bd7 Rh1 Bc6 Ra6 Qa5 Bd3 Rb8 Bf5 Rc8 Bb4 Ba3 Nf4+ Kd6 d5 h3 Ng6 B1b2 Nfe5 Nf3 Ng4 h2 Rc1 h1Q Nh2 Qe1 Bh3 g4 Rc2 Ng5 e4 Qe3 Rc1 Qf4 Rc2 Kc7 Rc1 Bb5 Rc2 Be2 d6+ Kd8 d7 Kc7 d8R Bf3 Bf7 Ba1 Rf8 B1b2 Qb3 Bd4 Qc3 Kd7 Nh4 Rc6 Bh5 Kd6 Ng6 Nb5 Raa8 Na7 Rf6 Rc7 Rc8 Kc6 Ra2 Kb5 Qe3 Kc4 Ra1 Bb6 Be7 Bbc5 Rb1 Rc6 Rb6 Rd6 Ra6 Rb6 Bf8 Rb1 Be7 Rc1 Qc3+
Bn5R/p1kRr1nN/Q5N1/P2bq2R/p1qn4/K2p2B1/2PnPn2/1b2r1N1 b - - 0 1 illegal: No proof kernel
1q2r2B/8/Q4pR1/1q1BNbbp/1rBKn1nk/1R1P1P1R/P3r2p/1rb3N1 b - - 0 1 legal: proof: e4 d5 exd5 a5 b4 axb4 h4 g5 c3 bxc3 Bc4 gxh4 Ba6 Bg4 Bf1 Bc8 Ke2 e5 Kd3 Ke7 g4 Kf6 d6 Kg5 d7 h5 f3 b5 Ba3 c5 Qc1 h3 Qe1 c4+ Ke3 h2 d3 f6 Qg3 b4 Bg2 e4 Qf2 b3 Be7 b2 Qe1 c2 Qa5+ Kh4 g5 c1Q+ Kd4 e3 g6 c3 g7 c2 Na3 b1R Nc4 e2 Qa6 e1R Ne5 Qg5 Bh3 c1B Be6 Re2 Bd5 Nh6 g8B Ng4 Bgf7 Bh6 Bf8 Qc7 d8R Bf5 Bg7 Re8 Bh8 Nd7 Rb8 Nc5 Rb3 Ne4 Bc4 Rab8 Bfd5 Rbb2 Rb1 Rb4 Ra1 Qb8 Rb1 Rbd2 R1b2 Re1 Rc2 Rdd1 Rg2 Rd2 Rg3 Rb2 Nh3 Ree2 Rhg1 Rb1 R1g2 Qb5 Ng1 Qf4 Nf7 Qfb8 Ne5 Ngf2 Rg6 Ng4 Rg3 Bhg5 Rh3#
1b2bbq1/1n1B1n1R/3P4/1KR4B/1pn1pNq1/kp1r4/1RB1PP2/b1rN3Q b - - 0 1 legal: proof: g4 a5 h4 g5 b4 axb4 c4 d5 cxd5 f6 Bb2 Ra5 Be5 Ra8 Bf4 gxh4 g5 Na6 g6 Nb8 Bg5 fxg5 d4 Kd7 Kd2 Kd6 Kd3 b5 a4 h5 a5 c5 g7 e5 a6 h3 a7 g4 Bg2 c4+ Kc2 h4 Ra3 e4 Ra2 c3 Kb3 h2 Qd3 c2 Qd1 c1B Ra3 g3 Bf1 h3 Ra6+ Nc6 Rb6 g2 Nc3 Nh6 g8B Nf7 Na2 Bb2 Nf3 Ba1 Ne1 Bd7 Rb7 Rc8 a8B Nce5 Rc7 Nc4 Nd3 Be8 Rc5 Qh4 Bb7 Qg4 Nf4 Rh6 Ba6 Rg6 Rg1 h1N Nc3 Ng3 Rh1 g1B Qc1 Rc6 Nd1 Bh2 Bg2 Rc7 Bf3 Nf5 Bc8 Bg3 Be6 h2 Bd7 Rh6 Qb1 Rh3 Qc1 Qh4 Bh5 Qg4 Rf1 h1Q Re1 Qg2 Rh1 Rc6 Qb1 Kc7 d6+ Kb6 d5 Ka5 Qd3 N5h6 Qf3 Nd8 Rh2 Qg1 Qh1 Rc8 Bc6 Nhf7 d7 Nb7 d8R Qg2 Rd6 Qg1 Bd7 Qg2 Rb6 Rc6 Nd3 Bb8 d6 Re3 Bg6 Qg1 Rh7 Rg3 Bh5 Qg2 Kc2 Ka4 Nf4 Ra3 Rh8 Rd3 Rh7 Nh6 Bd5 Nf7 B5e6 Ka3 Bd5 Nce5 Bb3 Nc4 Qe1 Qg8 Ne6 Nd2 Rc3 Q2g4 Nf4 Rc8 Rbc6 Nf3 Qh1 N3e5 Ba4+ Ka2 Rb3 Rc7 Rb2+ Ka3 Bb3 Rc8 Ba2 Rc7 Bb1 b3+ Kc1 Re3 Kd2 Rg3 Bd3 Rf3 Kc3 b4+ Kd4 Rc8 Bb1 Rc3 Rc4 Rc1 Bc2 Rc5 Rc3 Ra5 Rc8 Rc5 Rc6 Rc3 Rc5 Rg3 Kd5 Nc4 Kc6 Rd3 Kb5
2b1qq2/2B2nbN/3prr2/1RQN3P/P1pBP1R1/1B1R1nb1/1p2K1k1/r6b b - - 0 1 illegal: No proof kernel
n1n4N/R3bq1b/P2bR1PB/2p2brp/1pPqq2r/1B1R1Q2/6N1/1BK2k2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b3 e5 b4 axb4 dxe5 f5 Ba3 fxe4 Bb2 Be7 Bc1 Bf8 Kd2 Ke7 c4 Ke6 f4 Kf5 a4 c5 a5 d5 g3 b5 e6 e3+ Kc2 Ke4 f5 e2 a6 e1B f6 d4 f7 d3+ Kb2 b3 e7 h3 e8B h2 g4 d2 g5 Ke3 Na3 Kf2 Bd7 b4 Bg4 Qf6+ Kb1 b2 Bd3 Bf5 Nb5 Nd7 Nf3 Ne7 Ra3 Nc8 Nh4 Ndb6 Ng2 Bd6 f8R Qf7 Re8 h6 Rg1 h1Q Re6 Be7 Qb3 d1Q Nd6 Bd2 Qc3 Bf4 Rb3 Qd2 Bd1 Qh4 Be4 Qd4 Qh3 Rb8 Rd3 Na8 Bb3 Rg8 Kc2 b1B+ Kd1 h5 Bd2 Rb7 Kc1 Rd7 Re1 Rg6 Re2+ Kf1 Qf3+ Qhf2 Be3 Qh7 Nf7 Bfd6 Nh8 Qf7 Bc6 Qe4 Bca4 Rd8 Ba2 Rdg8 B4b3 Rf6 Bf4 Bh7 Bd2 Rf4 Be3 Bc2 Bb1 Rh4 Red2 Bc7 Rd7 Bcd6 Ra7 Rg6 Qh3 Q2f6 Rd3 Qfd4 Qg4 Rf6 g6 Rf5 Bh6 Rg5 Rd2 Qef4 Qh3 Bf5 Qe3 Qg4 Rd3 Qge4 Qf3+
1B3B2/3BK1Pn/b1N2r2/Q1p1p1r1/R1b3bN/P1q4n/p3n2P/2RNb1qk b - - 0 1 illegal: No proof kernel
4N3/4rrp1/1bRN1BRr/5q2/2KPq3/1PQ1q1p1/P1pqBB1n/n1N2k1b b - - 0 1 illegal: No proof kernel
1qb2B2/n2r1PnN/3PpR2/1pb1pB1P/BkN5/2rqn1K1/7R/bbRQ4 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 e6 fxe6 cxd5 e5 f4 Kd7 Kf2 Kd6 d4 b5 h4 g5 a4 c5 h5 b3 f5 b2 a5 c4 a6 c3 a7 c2 f6 e6 f7 g3+ Kf3 g2 Bd2 c1B Bc4 g4+ Kf2 g3+ Kf3 Nc6 Ra5 Nh6 Rh2 Ng4 Bh6 Ne3 Nd2 b1B Bb3 Bb2 Ra2 Ba1 Nh3 g1Q Ba4 g2 Ng5 Qf1+ Kg3 g1N Nh7 Qd3 Bg7 Be7 Bf8 Nf3 Rb2 Rb8 a8B Na7 Rb3 Nh4 Nc4+ Kc7 Bb7 Bc5 d6+ Kd7 Bd5 Rb7 Be4 Rg8+ Bg6 Kc6 d7 Qc7 d8R Qb8 Rbb2 Rd7 Rbf2 Rh8 Rf6 Nhf5+ Kf3 Ng7 Bf5 Kd5 Kg3 Rg8 Nb2 Kc6 d5+ Kb6 d6 Ka5 Nc4+ Kb4 Be7 Rc7 Rd7 Rd8 Bf8 Rc6 Rb7 Rd7 Rc7 Bcd4 Nb6 Rc2 Rc3 Bc5 Nc4 Rc1 Ra3 Rc2 Ra2 Rc3 Rac2 Qd2 Rc1 Qd5 Rh1 Qd3 Rh2
1bnbrR2/1q3PBb/p1r1p3/3nnNN1/Kb3kPp/B7/2Q2P2/N1Rq1B2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 dxc4 h5 f5 exf5 g6 Qe2 gxh5 Qd1 h4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 c5+ Kb5 a3 g4 c3 b4 c2 f6 c4 d5 Ke5 d6 c3 d7 h3 f7 a6+ Ka4 a2 b5 h4 b6 h2 b7 Rh6 Ne2 Nf6 Nf4 Nc6 b8N Nd5 Nh3 Na7 Qd2 Rc6 Bb2 c1B Ba3 c2 Qa5 Bg5 Qb4 c1N Qb5 Nd3 Qc5 e6 Nd2 Bb7 Qc2 Nc8 Rc1 a1B Rd1 Bb4 Nb3 Bge7 Rg1 h1Q Ng5 Kf4 Rd2 Bac3 Na1 Ne5 Rd1 Qb6 d8B Bd4 Bc7 Bd8 Bd6 Qc7 Bf8 Ba7 Bg7 Qf3 Rc1 Qd1 Rg3 Qd7 Rd3 Qe7 Nd7 Bb8 Nf6 Qc7 Ng8 Ra7 Bh8 Ne3 Nf3 Bf6 Rd8 Rb6 Bc4 Be4 Nd4 Nd5 Bf1 Bh7 Rf8 Bd8 Bg7 Rc6 Ne7 Qb6 Nef5 Re7 Nf3 Re8 Ng5 Qb5+ Kb3 Qb7 Ka4
3N4/2nn1p2/2R2p1B/k2QP1pq/2BB3q/rb1N1PbP/b6n/rNKbR3 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 h5 Qd3 hxg4 Qf3 b5 Qf6 exf6 axb5 Rh5 Bg2 Rh3 Bf1 Rh8 Kd1 a5 c4 g5 e4 d5 b4 Kd7 c5 Kc7 h3 g3 c6 Kb6 c7 g2 Nf3 g1N Be3 a4 Bd2 a3 Ra2 d3 Bc1 d4 Bb2 d2 Ba1 Nd7 Bc4 Bd6 Rc2 a2 Ne1 Nf3 Nd3 Ne7 Re1 Bg3 e5 Nh2 f3 Ra3 Bb2 Ba6 c8Q a1Q Qa8 Nd5 Rc3 Nc7 Qd5 Qa2 Kc2 d1B+ Kc1 Bb3 Ba1 Qf2 Bb2 Ka7 b6+ Kb8 b7 Ka7 b8B+ Kb6 b5 Ka5 b6+ Bb5 Nc5 d3 b7 Qg8 Ba7 Qh7 b8N Qh5 Rc2 Qd4 Ba1 Qdh4 Bd4 Ba2 Rc3 Ba4 Rc2 Na8 Rc3 B4b3 Bb6+ Kb4 Bc7 Re8 Bd6 Ka5 Bf8 Nc7 Bh6 Re6 Rc2 Ra6 Rc3 Kb6 Nc6 d2+ Kb2 d1B Nd8 Ka5 Kc1 Ra7 Nd3+ Ka4 Nd2 Rb7 Ne6 Bbc2 Bb5+ Ka5 Rc6 Rb8 Nd8 Rb6 Qe6 Rb8 Bc4 Rb2 Ne4 Bcb3 Nc3 Rb1+ Kd2 Ra1 Nb1 Ba4 Kc1 B4b3 Qd5+
4Rk2/3q1prp/n2b1N2/Q1pB3r/1bR3n1/1B1bPNNB/1qPnP2n/3K4 b - - 0 1 illegal: No proof kernel
6b1/b1Q1P1q1/P1Bkn1p1/2r1n2N/Kp1P3B/1pb4r/3RbR1N/1rq1BN2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Ke7 h4 f5 e4 c5 a5 b5 e5 c4 a6 f3 h5 g3 e6 f4 h6 g2 h7 c3 d3 c2 Kd2 g6 Rh4 f2 Rh2 b3 Kc3 f3 Kb4 Bg7 Bg5+ Nf6 Qc1 Qg8 Ra2 Kd6 e7 Ne4 Bh4 Nd7 Nd2 Ng5 Ka3 b4+ Ka4 Bc3 d4 Ne6 Bb5 f1R Be1 f2 Bc6 Ne5 Ngf3 g1B Rg2 Qf8 Nh2 Qg7 Rb2 Bb7 Ra2 Rhc8 h8B Rc7 Rb2 Rf8 Ra2 Rf3 Rb2 Rh3 Ra2 Qh6 Bf6 Qg7 Bh4 Bc8 Ba8 Rc5 Bc6 Bd7 Rb2 Be8 Ra2 Bf7 Rb2 Kc7 Ra2 Bg8 d6+ Kb6 d7 Kc7 d8N Kd6 Ng4 Bh2 Rb2 Rg1 Nf1 Bf4 Ngh2 Bg3 Qf4 c1Q Rd2 Rh1 Ne3 f1B Rgf2 Be2 Nef1 Nc7 Ne6 Rg1 Nf8 Ne6 Nd7 Kc7 Bg5 Qd1 Qf3 Nc4 Ne3 Qh6 Nf6 Qg7 Nh5 Be5 Qf8 Bd6 Qa8 Ne5 Bh4 Rf1 Bf3 Kd7 Qa7+ Bc7 Bc6+ Kd6 Rf6 Ba5 Beg3 Bb6 Rf5 Re1 Nef1 Qc2 Bf2 Rb1 Be1 Qc1 Qb7 Ba7 Rf2 Bf7 Qc8 Bg8 Qc7+
6Rb/3Kp2N/BN3q1r/1p2P3/1QrkqP2/bbq1qpn1/4P3/3NnBRB b - - 0 1 illegal: No proof kernel
1k2R2r/bbB1pPpq/1b1n2N1/1q3Rq1/p3P1bP/4Q1B1/K2Br3/1n2N1N1 b - - 0 1 illegal: No proof kernel forced: wxDB
2N2Bq1/2KPrN2/RQ1B2B1/pPp1pb2/6n1/1P3q2/4r2r/nRb1krNb b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 b3 h5 f3 c5 g5 a5 g6 e3 d3 c3 g7 e2 Bh3 e1R Nd2 c2 Bf1 Kc3 d4 h3 d5 h4 d6 h2 Bc4 h3 Bd3 Bf5 d7 Nh6 g8N Na6 Nc4 Re2 Ne5 Nb4 Rb1 Ng4 Nf7 e6 Be3 c1R Ne7 Nc2 Nc8 Na1 Bc2 Rh5 Qd6 Rf1 Qb6 Be7 Bf2 Kd2 Bg3 Bf6 Be4 Bb2 Bd3 Bc1 Be4 Nf2 Ke5 Ng4+ Kd6 Qg8 Kc7 Rh7 Be5 Ke1 Bd6 e5 f4 Rh6 Ne7 Re8 Nc8 Re7 Bd3 Bh7 f5 Bg6 f6 Bf5 Nf3+ Kd1 Rg1 h1B Rg2 h2 Ng1 Ke1 Be4 Be6 Bg6 Bf5 Rg3 Bhe4 Rh3 h1Q Rh2 Rh7 Rh6 Qf3 Nd8 Bb7 f7 Nh2 f8B Qe3 Qa6 Kf2 Nf7 Bd5 Bh5 Bh1 Re6 Qf4 Bg6 Ng4 Qb7 Rh2 Qa6 Re8 Bde7 Ke1 Qa7 Qg3 Ra6 Qf3 Bd6 Re7 Qb6
5N2/b1NPNK1P/3bB1Q1/1pB3q1/5n1q/brrP2pq/1RpR3B/4nb1k b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 b5+ Kb3 c5 h4 g5 a4 c4+ Ka2 e3 f4 b3+ Kb2 g3 Kc3 b2 h5 g4 a5 e2 h6 e1Q a6 g2 h7 e4 Kd4 e3 f5 e2 d3 c3 a7 c2 f6 Nd7 f7 Qg5 Ra3 Ne7 Rb3 Ne5 Rh5 N7g6 Bf4 Qeh4 Nh3 g1B+ Ke4 e1B Bh2 g3+ Qg4 Bb4 Nc3 b1Q Rb2 Nf3 Nf4 Ba3 Bh3 Qf1 Ne6 Nf4 Rh6 Be7 f8B Ne1 Qh5 Bb6 Qg6 Bb7 Bg4 Qfh3 Rh5 Rc8 a8N Ba7 Nac7 Bc6 Bg7 Ra8 Bd4 Rhc8 Bb6 Bd7 Nf8+ Be6 Qf7 Bd7 Be6 Bc6 Qg6 Bb7 Ke3 Ke5 d6 Bg2 d7 Bf1 N3d5 Beb4 Ne7 Bd6 Na6 Rc3 Bc5 Bab8 Nc7 Ra4 Ned5 Rb4 Ne7 Rbb3 Qe8 Kf6 Kd4 Ba7 Ke4 Qg7 Rh6+ Kg5 Rf6 Qg8 Rf5+ Kg4 Qg6+ Qg5 Kd4 Kf3 Re5 Kg2 Re2+ Kh1 Rd2 Qgh6 Ke4 Q3h4 Kf5 Qh3+ Kf6 Q6h5 Qf5 Q5g4 Qh5 Q8g5+ Kf7 Q4h4 Qg6
3K3k/3P1PR1/rn1pqRP1/N1p1b1rQ/B2rb3/1r6/1b1Nnp1R/B2qN3 b - - 0 1 illegal: No possible last move, all moves rejected
R1N3q1/1bP1q2n/2n3BP/2bR1bp1/1QRB4/2r1p3/1n2B1Pp/Nrb2K1k b - - 0 1 illegal: No proof kernel
1Q2r3/2PKPr2/3pRb1p/q1b1N2b/7R/P2npR1B/k1qnNN2/B1r2r2 b - - 0 1 illegal: No proof kernel
qQbbqr2/rPq3N1/3N1PqR/4p3/6p1/RnpPBk1B/2r2B2/N1nK4 b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 f4 g3 h4 Kd7 b4 Ke6 d3 Kf5 h5 c5 b6 a5 b5 g5 h6 e3 h7 a4 b7 a3 b6 a2 Qd2 Kg4 f5 e2 f6 g2 Rh6 Qc7 Rh1 Nc6 b8N Na5 Nd7 Nh6 Qd1 Nf5 Rh5 Ng3 Nf3 g1Q Nbd2 e6 Qb3 Be7 Rh2 Bd8 Nh4 Rf8 Nf5 Ra6 Ne4 Kf3 Kd2 e1Q+ Kc2 Ra8 h8B Ne2 Bg7 Qg4 Qb2 Qh5 Bd2 g4 Ned6 Qg6 Bgh6 Ra6 Ng7 Ra8 Rc1 a1Q Rh4 Qa2 Ra1 Qa4+ Qb3 e5 Ra2 Qa1 Bh3 Qac6 Be1 Qb5 Nb8 Qbe8 Nc6 Ra6 Qb5 Nb3 Bf2 Ra8 Ra7 Qa6 Bf4 Qab7 Ra5 Ra7 Ra3 Qa8 Bh6 c3 Kd1 c4 Bhe3 c2+ Ke1 c3 Rh6 Nbd4 Na5 Qh5 Nb3 Qhg6 Na1 Nb3 Qa4 Nd2 Qb3 c1R+ Qd1 Rc2 Qb1 Nc1 Kd1 Qed7 Qb5 Ndb3 Qd5+ Qe4 Qb7 Qe8 Qb8 Q4g6 b7
2RB4/P4N1N/Pp4rp/1qnRN2b/1q1bp1B1/2q2r1n/K1k1QP2/R3q1r1 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 gxh4 Bc4 c5 Bf1 cxd4 Kd2 Kf7 g4 Ke6 a4 Ke5 c4 d5 Kc2 b6 Kb3 h3 a6 e3 a5 Ke4 g5 e5 c5 h2 a7 e2 g6 e1Q c6 d3 c7 h6 g7 d2 a6 d4 Nf3 d3 Qc2 d1R Bh3 Bg4 c8N Qg5 Ba3 Nf6 g8R Qb4+ Ka2 Rg1 Nh4 Nh7 Qd1 d2 Nf5 Kd3 Qa4 d1Q Qc6 e4 Qc7 Bg7 Nfe7 Qf3 Nd2 Bd4 Nc6 Qgb5 Nd6 Bh5 Rc8 Ng5 Nf7 Nd7 Bg4 Nc5 Nce5+ Kc2 Bb2 Qfd3 Ndf3 Nh3 N3g5 Rg8 Nh7 Rg6 Bc1 Qdc3 Bg5 Rb8 Bd8 Rb7 Qc6 Rc7 Qd5 Rcc6 Rd1 Rcf6 Qc4 Rf3 Qf1 Rgg3 Rg1 h1Q Qc4 Rg2 Rd3 Rgg3 Ra1 Qe1 Rdd1 Rg1 Rd3 Be3 Rd5 Bd4 Qe2+
N2q2B1/PRp1R3/qq3Rn1/b4p1Q/B1pk3r/n1Pr1Pb1/5NK1/1b2b2B b - - 0 1 legal: proof: d4 e5 b4 h5 g4 hxg4 Be3 Qg5 dxe5 Qh4 b5 Qd8 b6 axb6 Bc5 bxc5 h4 Ke7 a4 Ke6 e4 f5 h5 g5 h6 b5 h7 d5 a5 b4 f3 g3 a6 g2 Kf2 b3 a7 b2 Rh5 g4 Be2 d4 Rh2 d3 Nd2 b1Q Ra6+ Qb6 Bf1 g3+ Ke3 Nc6 Nc4 d2 Nh3 g1B+ Nf2 Bd6 Bg2 Na5 Bh1 g2 Kf4 Qf6 Kg3 Ne7 Qb1 Rd8 h8R d1Q R2h7 Ng6 Qc1 Bb7 Qh6 Bd5 Qh5 Bh2+ Kh3 g1B Kg2 Bg3 Rg8 Rd7 Rb8 Qd3 Rg7 Qd8 Rb7 Bf8 Rf7 Bh6 Rh7 Bd2 Rf7 Be1 Rf6+ Ke7 e6 Qa3 e5 Qd3 Nb2 Nc4 Na4 Na3 Ra5 Qda6 Rb5 Qd6 Nb6 Ba2 Ra5 Rc8 Na8 Bb1 Ra4 Qdb6 Re4 c4 Re3 Ke8 e7 Rd3 Re2 Kd7 e8B+ Ke7 e6 Kd6 e7+ Kc5 Bf7 Kd4 e8B Ba5 Bg8 B1h2 Ne4 Bge1 Ba4 Bhg3 Nf2 Qd7 Bd5 Rh8 Bg8 Qd8 Re7 Rh7 Qg5 Rh3 Qh5 Rh4 c3+
6q1/pk1qpNPn/7B/KPB1Pb2/3n1Qr1/1r2B2b/b4pR1/2NNR1bn b - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 d4 cxd4 axb5 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kd2 f5 e4 d5 h4 Kd7 b4 Kc7 c4 g3 g6 g2 e5 f3 c5 f2 b6+ Kb7 h5 f1B b5 d3 Kc3 d4+ Kb4 f4 h6 f3 h7 d2 Qe1 d1N Ra4 d3 Qh4 d2 Ka5 Qd7 Qf4 Bh6 Nc3 Nf6 Ra2 Nf2 Nge2 d1B Be3 g1Q Nc1 Bb3 Nd1 Bh3 Rc2 Qg3 Re1 Nh1 Rg2 Rf8 h8B Nh7 Bf6 Ba2 Bg7 Bg5 Bh6 Nc6+ Ka4 Nd4 c6+ Kb8 c7+ Kb7 Ka5 f2 Qg4 Rf3 Qf4 Qgg4 Bf8 Qge6 Bh6 Qg8 g7 Bh4 Re2 Bg3 Re1 Bh2 Re2 Qd6 Re1 Bcf5 c8N Qd7 Nd6+ Kb8 b7 Bg1 Bd2 Rb3 Be3 Kc7 Nf7 Rf8 b8B+ Kb7 Bd6 Rc8 Bb4 Rc6 Nb2 Rg6 Nd1 Rg4 Bc5
K1B1r3/5Rnn/RN3nnp/pP5p/Bqbn1b1B/P2k4/rNn1R1P1/5Q2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 c4 bxc4 h4 g6 d3 cxd3 h5 gxh5 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 c5 b4 d2 b5 h6 e3 c4 e6 c3 e7 c2 e8B Qh4 Nc3 Bd6 Bb2 c1N Rb1 Bf4 Ra1 Ne2 Rc1 Nf6+ Kc5 d5 Qb3 d1N Qa3 d4 Qa5 d3 Nd5 Ke4 Bd7 d2 Nb6 Ndc3 Ra1 d1N Nh3 Kd3 e4 Ncd5 e5 Nh7 e6 f5 e7 N1e3 e8R Ndf6 Qe1 Nc2 Rf8 a6 Rf7 Nc6 Ba3 Bb7 Bc8 N6d4 Qb1 Re8 Nf2+ Ke3 Bb4 Bd5 Be1 Bc4 Nd1+ Kd3 Rg1 Bd2 Kd6 f4 Kc7 f3 Kb7 Bf4 Bg3 Qg4 Bh4 f2 Rh1 Nf5 Qc1 Ne7 Qb1 Ng6 Rh3+ Kd2 Re3 Ned4 Be2 f1N Bf3 Ng3 Re2+ Kd3 Qc1 Be6 Bd5 Ngf5 Bb3 Ng7 Ba4 Bg3 Qf4 Bc4 Qf1 Bf4 Be6 Rad8 Bc8 Rd5 Ka8 a5 a3 Qe6 Rc1 Qe7 Nc3 Rc5 Rce1 Rc7 Nd1 Qb4 Re6+ Kd2 R1e2+ Kd3 Nd5 Rce7 Ra6 Re3 Nb6 Rf3 Nd7 Rf2 Nb6 Ne1 Re5+ Re2 Qf2 Rd2 Re2 Ra2 Qf1 Nec2 Nb2+
2r1b2K/1pqr1rN1/1P1B1p1P/2r1R3/6Bk/P2rr2N/p2Rb1NQ/2nB1n2 b - - 0 1 illegal: No proof kernel
1k6/Np1bBP1n/3qp3/B3b1R1/1QbNPn2/6KP/R2bBpb1/r2N1br1 b - - 0 1 illegal: No proof kernel
2N1R3/4b2Q/r1P3R1/B1P3n1/1N1p2B1/1pRP1bNb/2qr2pn/kn2nbK1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c3 e5 Qb3 c5 bxc5 exf4 Qb4 axb4 Kf2 Ke7 a4 Ke6 h4 Ke5 e4 d5 c4 Kd4 h5 g5 h6 b5 e5 f5 e6 g3+ Kg2 b3 c6 b2 d3 f3+ Kh3 b4 h7 f4 Ra3 b3 Nd2 Kc3 Ra2 b1N Rb2 d4 Be2 g2 Kh2 g4 e7 f2 e8N f1B Nd6 f3 Ra2 f2 Nh3 g1N Nf5 Bb7 Ne7 Nh6 Nf4 Qc7 Nc8 Bh3 Nf1 Ra6 Ng3 f1B Bf3 Rg8 h8Q Nd7 Rg2 Nf7 Bd2+ Kb2 Ba5+ Ka1 Nd5 Nf6 Nb4 Be7 Qh7 Ng5 Rc2 Nh5 Rc1 Nf4 Rc3 Ng2 Bd1 Ne1 Bf3 Ne2 Rg1 Re8 Rg2 Ng1 Be2 Ng1f3+ Kh1 Nh2 Kg1 Qe5 Bd1 Qe2 c5 Qc2 Bc7 Rf8 a5 Rf2 Bf3 Rd2 Bd1 Ra7 a6 Ra8 a7 Ba6 Qe4 Bc4 Ba5 Bd5 Qh7 Bf3 Be2 Rb8 a8R Rb6 Na7 Ra6 Re8 Be4 Nc8 Bd5 Nh5 g3 Bg4 Bf3 Rf2 g2 Ng3 B3e2 Rf6 Bf3 Rg6
3Nrrq1/k6p/1bnQ4/1BR2R1K/n1Pp1Pp1/1r1N1nBP/3nb2B/2Rr4 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 e4 a5 Ke2 g5 c4 d5 f4 Kd7 e5 Kc7 b6+ Kb7 e6 a4 e7 b3 e8R g3 Kf3 b2 h3 g2 Ra3 d3 Re5 d2 Nc3 b1N Nce2 Nd7 Kg4 Bc5 Nf3 g1N Nfd4 Ne7 Kh5 Rf8 Ne6 Nc6 Rf5 Nf3 Bg2 g4 Re3 a3 Ree5 a2 Re1 Kb8 b7 a1R Bh1 Ka7 b8B+ Ka6 Bd6 Nb6 Be7 Ka7 Bh4 Ra3 Bg3 Rb3 Bb2 Rb8 Nc1 Na4 Nd3 Bb6 Bd4 Bb7 Bg1 Re8 B1h2 d4 Qe2 d1R Rc5 Rf8 Qe5 Nbd2 Qd6 Qc8 Nd8 Qe6 Nf7 Rbe8 Nd8 Qg8 Re2 Nf1 Rc2 N1d2 Rc1 Na5 Bh4 Be4 B4g3 Nc6 Nb2 Bd3 Bg2 Be2 Nd3 Ng5 Be4 Ngf3 Bd5 Ne7 Bb7 Nc6 Ba6 Ra3 Bb5 Rc3 Nb7 Rb3 Nd8
1Q1r4/bnNP3R/3RpP1B/knPq1n2/1N2prB1/2pb2b1/2n2B2/2KN3b b - - 0 1 illegal: No proof kernel
1RR1BB2/P1p1Qq1p/p2Pr1br/2B2b2/PKnn4/n4r1r/6n1/NNR4k b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 g5 c5 gxh4 c6 e6 b4 a6 b5 Bc5 Ke2 dxc6 Ke1 Ba7 b6 c5 bxa7 c4 g4 Kd7 a4 Kc6 d4 Kd5 Kd2 b5 Kc3 e3 f4 Ke4 g5 h3 d5 h2 f5 e2 g6 e1N f6 e5 g7 b4+ Kd2 b3 Kc3 b2 f7 Qf8 d6 Bf5 Nh3 Nd7 Rg1 h1R Ra2 Ne7 g8R Re8 Qc2+ Kf3 Nf2 e4 Kb4 c3 Ka5 e3 R8g7 e2 R7g6 Rh6 Ng4 Ne5 Ra1 Nc4+ Kb4 Nc6+ Kc5 Re6 Bh3 Ng2 Rg8 e1N Ne3 Nd4 Kb4 Qe7 f8B Qf7 Qd3 c2 Qe4+ Kf2 Bd2 c1R Nc2 Rd1 Bc3 Rd3 Bg4 Re3 Bh5 Rh3 Ra2 Bg6 Na1 Kg3 Bd2 Kh2 Be3 Bf5 Ra3 Bg6 Rb3 Nec2+ Kc3 Bf5 Rc1 N2a3 Kb4 Bg6 Bg1+ Kh1 Qh4 Bf5 Qe7 Bg6 Bg7 Bf5 Rc8 Rg8 Bf8 Rgg3 Bg6 Rf3 Bh5 Qg8 Be8 Qf7 Kc5 Bg6 Rbb8 Bf5 Kb4 Bg6 Nd2 b1B Be3+ Ne1 Bg1 Bbf5 Nb1 Ng2 Rc3 Nb3 Bc5 Nd4 Rc1+
3R1r2/p5Q1/B1n4p/bN1bn3/R1PkP1Rn/3q1p2/Prb3BN/2b1nB1K b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 Bb2 exf4 b4 d5 bxc5 d4 Bc3 dxc3 Kf2 Kd7 g4 Ke6 Kg2 Ke5 e4 f5 g5 b5 d3 f3+ Kh2 c2 c6 c1B c7 h3 g6 f2 g7 h6 Bg2 f4 Qe1 f3 Bf1 b4 Qd2 b3 Ne2 b2 Na3 b1B Ng3 Ne7 g8B Nbc6 Nb5 Rb8 Rg1 Ng6 Be6 Bb4 Qe2 Bc2 Rb1 Ba5 Rb4 Nh4 Ra4 Bb7 c8B Rf8 Kh1 Ba8 Bg2 f1N Ba6 Ne3 Nf1 Ng4 Nh2 Qd4 Bf1 Qe3 Qg2 Bb7 Nd6 Kd4 Qg3 Nge5 Qg7 Ba8 Rg4 Rb2 Bf5 Kc3 d4 Qd3 d5 Kd4 Nc8 Nd8 d6 Bd5 d7 Nc6 d8R Qd1 Rg6 Bb4 Ng4 Qd2 Kg1 Ba5 Nd6 Qc3 Kf2 h2 Nb5+ Kc5 Bfc8 h1N+ Kg1 Nf2 Nh2 Nfd3 Kh1 Ne1 Bch3 Qa3 Bhg2 Qd3 Nd6 Kd4 Rg3 Rb6 Rg4 Rb2 Nb5+
4B1q1/pR2Kp2/7P/1qnB1P2/1k2bpqP/nqbq1bBr/2N2Q2/R4R1N b - - 0 1 illegal: No proof kernel
1b2bbK1/r4n2/N4b1P/p2Bq1R1/1p3R2/P3q2B/QPnB1p2/bNk2q1R b - - 0 2 illegal: No proof kernel
1q2R1nq/4qQnp/qq4Rk/2BB4/3KNbPP/Rp1Nr1Bn/3r2Pp/8 b - - 0 1 illegal: No proof kernel
1b1Rq2b/Q3B3/bp1B4/prPnbn1k/K1R5/NB1b2qp/PN3q1P/1N6 b - - 1 2 legal: proof: f4 a5 g4 f5 b4 c5 e4 cxb4 e5 d6 Na3 dxe5 Nb1 Ra6 Qf3 Rf6 Qe2 exf4 Qd1 f3 Bc4 f4 Bf1 Rf5 gxf5 Qd7 Be2 Qd5 Bf1 Qd8 c4 Kf7 d4 g5 Kd2 h5 Kc2 e5 Kb3 f2 d5 b6 d6 f3 d7 h4 f6 Kg6 f7 h3 Qc2+ e4 Qd3 g4 Bg2 f1Q Nd2 f2 Bf3 g3 Ne2 g2 Nb1 g1B Qc3 e3 Bc6 Bg7 f8N+ Kh5 Ba4 Qe8 d8B Ba6 Nd4 e2 Nb5 e1B Nd4 Nh6 Bh4 Nd7 Ba3 Qg2 Bd8 f1Q Nb5 Nf6 Nd7 Qg3 Nc5 Nf5 Be7 Nd5 Nd3 Qff2 Nb2 Be5 Qd3 B1c3 Qd4 Bc7 Qg7 Bb8 Bd6 Rg8 Qa7 Rg5 Be7 Qff3 Bd6 Bgd4 Rd1 Qff2 Be7 Bh8 Rd3 Nc7 Rd8 Bcd4+ N1c3 Nd5 Rc1 Qc7 Nb1 Bde5 Nd4 Qd6 Nc2 Qdg6 Bc6 Qgg8 Ka4 b3 Bad6 Qgg6 Nca3 Qg7 Nd3 b2 Rc2 Rg1 c5 Qgg3 Rc4 Rh1 Nd2 b1B Nb2 Bd3 Ndb1 Rc1 Bd7 Rc3 Bc6 Rb3 Bd7 Rb5 Be6 Nh4 Bg8 Nf5 Rb4 Nf4 Bb3 Nd5 Rc4
N4kqn/n1B1Q1pq/1b2qP1R/N1p3K1/2PB1p1R/1r2R1P1/b5b1/1bBb4 b - - 0 2 illegal: No proof kernel
1k2B1NN/2bq1bB1/1Qn1bbpp/3P1n2/nq3q1P/5r1p/K2R2P1/3BR2R b - - 0 2 illegal: No proof kernel
1Bb4N/KPRP4/n1r4b/Q1r2NkB/p3pBp1/1R1q4/P1r3N1/bb2q1q1 b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 c5 fxg4 c6 bxc6 Ba6 c5 Bf1 c4 h3 g5 Rh2 g3 Rh1 Nc6 h4 g4 Bg2 Nd4 Bh3 Ne6 Bf1 Ng5 hxg5 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kf7 Ke3 Kg6 b4 e5 f4 h5 d4 a5 b5 c5 f5+ Kf7 d5 c3 g6+ Kf6 d6 c4 g7 c2 b6 h4 b7 g2 Nh3 c3 Nf4 a4 Qd5 h3 Bb5 h2 Be8 Qd7 Qa5 Kg5 f6 Ne7 g8N Bg7 f7 Rh6 f8B Nc6 Bh5 Nb4 Ng6 Na6 Na3 Bf6 Rf1 h1B Rb1 g1Q+ Rf2 Qf5 d7 Bh8 Bd2 c1B Rb3 c2 N8e7 Bg7 Nh8 Rc6 Nc4 Qg6 Ke2+ e3 Nf5 Be4 Bd6 Bh6 Bb8 Bb2 Rf3 c1R Rf1 Rc3 Rc1 Bb1 Rc2 Qh7 Rc1 Rc2 Kd3 Ra7 Ke4 Ba1 Kd5 Rc5+ Kd6 Rd5+ Kc6 Rc5+ Kb6 e4 Be1 e2 Beg3 e1Q Nce3 Qg8 Ng2 Qc4 Rd1 Qce2 Rd6 Q2f1 Rc6 Qd3 Rc7 Nb4 Qb5 Ra5 Bd6 Na6 Ka7 Rc6+ Qb6 Rac5 Qa5 Qc1 Bh2 Qce1 Bf4+
1r2B1b1/b1K1Rrp1/1PR1r1P1/3pk3/rNbQ2pP/bN2r2N/n2BR3/3q4 b - - 0 1 illegal: No proof kernel
n1n5/1p3P2/Nr1p2rP/Bn1Q1qb1/R3BRk1/1NRr1p1n/r4P2/2K2B1r b - - 0 1 illegal: No possible last move
1BQr2N1/K3Bkpp/6R1/2N1N2P/Pqrqr1pP/1B2n3/1b1R3r/1r1r1b2 b - - 0 1 illegal: No proof kernel
R1n3r1/1Kb2P1b/1P1r1r1Q/1pB2p1b/4N3/1PqRBp1b/1R1Nb1B1/3rk3 b - - 0 1 illegal: No proof kernel
qb5Q/1qNq4/bNnB2rp/1p1p4/1P4q1/2b1nBR1/KP2P1NR/b3Bk2 b - - 0 1 illegal: No proof kernel
2R2q1B/2Br1qpR/bq1p1P2/BR1N2P1/K2n1pbb/1N1P4/4q1bn/2Q3k1 b - - 0 2 illegal: No proof kernel
1N1R1R2/b3nK2/kqq1pp2/B6R/5Nq1/1Brn3P/1rPp1P1r/Q2q1Nr1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 h5 e4 hxg4 Bb2 d5 Bh3 d3 Bf1 d4 Ba3 Be6 Bc1 Bd5 exd5 Rh4 Qf3 Rh3 Qd1 Rh8 Kd2 Kd7 a4 Kc7 d6+ Kb6 d7 g5 a5+ Ka6 Bb2 b5 Ra2 f6 Bg2 g3 Bc1 g4 Bd5 g2 Rb2 e6 Nh3 g1R Qe1 b3 Bc6 g3 Bg2 b4 Ra2 b2 Bd5 b3 Nf4 Qb6 d8R g2 Kd1 d2 Ke2 d3+ Kf3 Be7 Kg4 Bc5 Rf8 Ne7 h3 Rg8+ Kh5 d1Q+ Kh6 Ra7 Nd2 b1R Nf1 b2 Bb3 Nbc6 Bd2 Nb4 Ra1 Rb7 Ra4 Rh8+ Kg7 Qc6 Kf7 Ba7 Qe5 Rc1 Qd4 b1Q Qa1 Rg8 Be1 Rg3 Ra2 Kb5 a6 Kb6 Bc3 d2 Ra5 Qb2 Rh5 Nd3 Bb4 Qd4 Rh2 Qdc5 Ba5+ Kb5 Rd8 Rh1 Rf8 g1Q Rg2 Rh2 Rd8 Re3 Rgg8 Qgg4 Rgf8 Rb1 Rhh8 Q5b6 Rh6 Bb8 a7 Ka6 a8N Ba7 Rh4 Rb2 Rh5 Re1 Re5 Rc7 Rh5 Qb4 Nb6 Rc8 Ne3 Rg1 Nd7 Qbb6 Nf1 Qd6 Bd5 Rc3 Bb3 Qdc6 Nb8+
5r1R/rP6/r3bN1n/B2P1n1p/2N4n/1pbR1p2/r1k1nPBB/2n1QKN1 b - - 0 1 illegal: No proof kernel
1k1B2BR/rbrnN3/n4P2/pq1n4/1pBP3N/6bP/K1Npp2b/1rR2Q2 b - - 0 1 illegal: No proof kernel
8/1NNrp2n/1Rp3rb/q1PQBbP1/1R3Bp1/1R1r3p/1P1n1N2/nk1K1b2 b - - 0 1 legal: proof: g4 b5 e4 g5 h4 d5 a4 dxe4 axb5 gxh4 g5 f6 Be2 f5 Bg4 fxg4 d4 Kf7 f4 Kg6 c4 Kf5 c5 a5 d5 h5 d6 c6 b6 h3 d7 h2 b7 e3 Qd2 Ke4 f5 e2 f6 h4 f7 a4 Nh3 a3 Qb4+ Kd3 Rg1 Kc2 Rg3 h1B Re3 a2 Nc3 Bh6 f8N Ra3 Nb5 Qa5 d8B Nf6 Nc3 Nbd7 b8R Bg2 Ne4 Nh7 Nhf2 h3 Ne6 Nb6 Bc7 Rg8 Rb3 Bf1 Be5 Rg6 Nd6 Nc4 Rb6 Nd2 Nb7 Bd7 Nc7 Bf5 Rd3 Rb3 Qd4 Rc3 Rf3 Rb3 Qd5 Rd3 Rb1 a1N Rb4 Nc4 Bcf4 Nd2 Rd1 Nc4 Rd2+ Kb1 Rc2 Nd2 Rcc4 Rd4 Rfb3 Rd3 Nd1 Rg8 Rb6 Rg6 Kf2 e1R Rd4 Ree3 Rdb4 Rf3+ Ke1 Rd4 Nf2 Rfd3 Qh1 Rdd6 Kd1 Rd7 Qd5
2bNK2N/r1b4r/2pN1q2/PPn1pB1n/1q1Q2p1/P2Bp3/bn6/R2kB2R b - - 0 1 illegal: Other
8/bk1bNB2/1rp1P3/4BppP/1Q4PB/2K2pqn/3Nr1nr/RR2q1bN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 dxc4 Qa4 exf4 Qa3 h4 Qg3 hxg3 d4 Kd7 Kd2 g5 h4 f5 e4 a5 b4 c6 d5 Kc7 b6+ Kb7 d6 f3 e5 a4 b5 g2 d7 a3 Be2 c3+ Kd3 c2 Bf4 c1Q Nh3 g1B Bg3 a2 Nd2 Qc7 Nf2 Qe1 Kc3 Ne7 Bc4 Ng6 Bf7 Nf4 e6 Nh3 d8Q Rh5 Qd4 Na6 Qb4 Nc5 Rb1 a1R Be5 Rh8 h5 R1a2 Bg3 Bd7 Bh4 Nd3 Ra1 Kb8 b7 Bc5 Rb1 Ka7 b8B+ Kb7 b6 Qg3 Be5 Rhb8 Ra1 Ndf4 Rb1 Ka6 b7 Ba7 Ra1 Bh2 Rf1 Ng2 Nh1 Bhg1 Qf8 Rc8 b8N+ Kb7 Na6 Rcb8 Nb4 Rb2 Nd5 Ra2 Kd3 Rc2 Ne7 Rb2 Nb3 Re2 Nd2 Qb1+ Kc3 Rf2 Ng8 Bd4+ Kc4 Ne1 Nf6 Rh2 Ra5 Ng2 Nb3 Kb6 Ra1 Ra2 Ng8 Re2 Nd2 Bde3 Kc3 Rb7 Bh8 Kc7 Qa3 Ba7 Qb4 Rb6 Ne7 Kb7 Rc1 Kc7 Be5+ Kb7 Rc2 Qf1 Rb2 Qfe1 Rbb1
1Qbn2B1/2b2NK1/qPq1P1N1/3nprPN/1p1k1Bb1/p3Br2/4R1p1/2r4R b - - 0 1 illegal: No proof kernel
1bN1b2N/B1Nn1qP1/1RKQ2p1/1pRB1p2/q2rb2P/3qp1P1/1kB5/1n3r2 b - - 0 1 illegal: No proof kernel
q1NQRK2/1Br3P1/2p3bk/nP3npr/2BqR1P1/N1b1rp1p/1q5R/3B4 b - - 0 1 illegal: No proof kernel
5n2/3P4/k2N1bN1/4P1Q1/Bp1K1pRB/1bpp1R1B/1Pqn1r2/r1qq2rR b - - 0 1 illegal: No proof kernel
bNBR3r/2p2P2/qn1Q2p1/qk2RP2/N5Kn/2P5/npB1p3/qRr3bB b - - 0 1 illegal: No proof kernel
2B1K1B1/pN6/n1n3pR/BN2b1p1/1qn1br1R/2p2k2/Pr2q1PP/3QR1b1 b - - 0 1 illegal: Other
2R2N1K/B3nP2/3r2rp/r2p4/bbBP1p2/Q1P1npk1/2q1b1B1/3N1RbN b - - 0 1 illegal: No proof kernel
N1QB4/4p1r1/1nPN2rP/4K2b/2q3pp/1bNp2Rn/BR1PnkbR/7n b - - 0 1 illegal: No proof kernel
2K3k1/3pR2r/1P1q1r1r/2n3p1/r1Rb2PQ/N1pB2b1/1R1p1nPB/nN4N1 b - - 0 1 illegal: No proof kernel
2BN2R1/1pp1BbPN/1Pr2pNK/qr1n2Pp/Q7/1B1Rn3/2rn1b1k/3r4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 e5 b5 exf4 Qa4 Ra6 Qb3 Ra8 Qb4 axb4 Kf2 Ke7 Kf3 Kd6 g4 Ke5 d4+ Kd5 e4+ Kd6 a4 h5 e5+ Ke6 g6 b3 b6 c3 g7 b2 a5 c2 d5+ Ke7 e6 Kf6 e7 Ke5 e8B Nh6 a6 Be6 d6 Qg5 d7 Nc6 d8N Bc5 a7 Bf2 Bd7 Nf5 Rh3 Nb4 Ne2 Nd5 Nd2 b1N Bc8 Nfe3 Ba3 c1R Ne4 Rh6 Be7 Rc2 Nf6 Qf5 Nh7 Rf6 Ng1 Rg6 Bc4 Nd2+ Ke2 Qg5 Bb3 f3+ Kd3 Rh6 Ne2 Rf6 Nf4 Rh6 Ng2 Rg6 Nh4 Kf4 Ra5 Qe5 g5 Rh6 Rh1 Kg3 Rd1 Kh2 Ng6 Qa1 Ra6 Qa5 Kd4 Bg3 Kd3 f2 Kd4 f1R Kd3 Nb1 Ke4 Bf2 Rd3 Nd2+ Ke5 Rb8 a8Q Rb1 Qa7 Ra8 Nh4 Rd1 Ng6 Qb5 Ra2 Qb4 Qa3 Ra5 Qa4 Rb5 Ra1 Qa5 Ra2 Nc3+ Kf6 Bc4 Ra1 Ncd5+ Ke5 Kh1 Ngf8 Kg2 Be6 Qa8 Qa6 Kg1 Nc6 Ng2 Kf5 Kh2 Bd7 Rd6 Ra2 f6 Kg6 Nc3 Kh6 Bf7 Ng6 Ne3 Ra4 Re5 Rad4 Rc5 Qa4 Rb5 Bc8 Qa5 Rd5 Re6 Rd8 Ncd5 Rg8 Rd6 Nd8 Re6 Rc3 Rc6 Rd3
bB2r3/4R1np/K1B5/N3p2N/N2np1R1/pk1nPPPr/5q1Q/2q1nBb1 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Qd2 cxd4 Qe3 f5 Qe4 fxe4 Kd2 Kf7 b4 Ke6 c4 d5 c5 a5 c6 a4 b6 d3 Kc3 h3 c7 h2 b7 d4+ Kc4 d2 Kb5 Kd5 Kb6 Kc4 b5 d1Q Bd2 e5 Bb4 d3 Bd6 d2 Nc3 Nh6 Nh3 Qh4 Rg1 h1N Nf4 Kb3 Nh5 Nc6 b8N Nd4 Nc6 Bb7 c8B Qc1 Bb8 d1N Bd7 Ne3 f3 a3 Na4 Nf2 Be8 Nd3 Rb1+ Kc4 Rb3 Nec2 Rb2 Nce1 Na5+ Kd5 Rc2 Qf2 Rc7 Nhf5 Re7 Rg8 Bd7 Rg3 e3 Bh6 Be8 Rh3 Bd7 Bf4 Be8 Ra7 Bd7 Ba8 Be8 Rb7+ Ka6 Bg3 b6 Ng7 Bb5 Rc7 b7 Bh2 Bc6+ Kd6 Nb2 Kc5 Na4+ Kb4 g3 Rc8 Rh1 Bg1 Rh2 Rh4 Rh1 Rf4 Rh4 Re8 Rg4 Rf6 Ba7 Rh6 b8Q+ Nb5 Qc7 Nd4 Qd8 Rg6 Bb8 Rh6 Nb7 Kb3 Qa5 Qfb2 Qd2 Qbc2 Qh2 Qf2 Nf6 Rh4 Nh5 Rh3 Na5+
3q4/B3Q1PR/1p2B3/kRqrB1pr/2p1b1np/7P/1PqNN1R1/Kb1qn3 b - - 0 1 illegal: No proof kernel
1Q4k1/rpRPPBp1/1r1b4/pnB2K2/3B1b2/3r1qp1/1PRr1NqN/2Nn4 b - - 0 1 illegal: No proof kernel
RK1B1q2/1N4qp/1Pb1nn1P/prPnkB1p/Rp6/1B3N1r/3qR1Q1/3r4 b - - 0 1 illegal: No possible last move
3rN3/1P1bN1k1/b4pp1/p3qR2/1Qrp1NP1/b2B1rP1/Kbb1R1n1/B1B5 b - - 0 1 illegal: No proof kernel
8/2p1q2Q/2kpbbb1/4rN2/3N1Kpp/n5R1/RBPn1PPn/B2nn1NR b - - 1 2 legal: proof: e4 e5 a4 b5 d4 bxa4 h4 exd4 e5 a5 Bc4 g5 Ra2 f5 Ra1 g4 Bd3 Ra6 Be4 fxe4 Qf3 Rg6 Qd1 Rg5 hxg5 Qf6 Ra3 Qe7 Ra1 Qd8 Kd2 h5 b4 d3 Ke3 d2 b5 h4 g6 a3 g7 d6 e6 a2 b6 a4 e7 Kd7 e8N a3 b7 Be7 Rh3 Rh5 Rf3 Re5 Qf1 d1B Qd3 Nc6 b8B Nd4 Rf8 Nh6 g8R Nhf5+ Kf4 e3 Nd2 e2 Qc3 e1N Qe3 Nb5 Nh3 Be2 Qd3 Bf6 Ng7 Qe7 Nh5 Kc6 Ng7 Ne3 Nf5 Nd1 Rg5 Be6 Nf3 Bf1 Rb1 a1N Nhg1 a2 Ba7 Na3 Bd4 Nb3 Ba1 Nd2 Bcb2 Be2 Rb8 Nf1 Rb3 Nh2 Rg8 Bf1 Ra8 Be2 Ng3 Bf1 Qh7 Bd3 Ra7 Bg6 Nf5 Kd5 N3d4 Kc5 Nde2 Kc6 Rg3 Bc4 Bc3 Be6 Bab2 a1N Ned4+ Kc5 Ra4 Nb3 Ba1 Nd2 Bcb2 Nb5 Ra2 Na3 Rc1 Ne3 Rd1 Nef3 Rf1 Nd1 Nh3 Ne1 Rh1 Kb6 Ng1 Kb7 Ndf3 Kc6 N3d4+
1q5k/4K1R1/N6P/2P2QrN/pqb2rqp/n2q1pB1/1Rp1BP1N/1Rb3b1 b - - 0 1 illegal: No proof kernel
rN1RR3/nRqbpP2/n1p4n/B1N1P1k1/1b1p4/1pb1B1Q1/3P3b/1KB4q b - - 1 2 illegal: No possible last move
N1R2q2/Kb3Rpq/2P2p1N/Br1Nb3/Bn5p/pR1k1Pb1/1q1P1Q2/1b2r3 b - - 0 1 illegal: No proof kernel
5K2/p1R3nq/n3Rb2/B2PN3/P7/NbBpbnp1/Pq1QR2p/1Bkn1r2 b - - 0 1 illegal: No proof kernel
NqqR2R1/1bpp2NN/p2RPB2/2P2n2/6Q1/PBb1kq2/p4r2/b1K2n1b b - - 1 2 legal: proof: g4 f5 d4 fxg4 a3 b5 Qd3 e5 Qc4 exd4 Qa2 b4 h4 g5 Rh2 b3 Bf4 bxa2 Rg2 g3 Rh2 g4 Bc1 a6 Rh1 Ra7 Bd2 Rb7 Be3 Rb5 Bc1 Rg5 hxg5 Kf7 Bg2 Ke7 Bf1 Ke8 Kd1 Kf7 e4 Ke6 b4 Ke5 f4+ Ke6 c4 h5 e5 Kf5 b5 Ke4 f5 h4 f6 g2 c5 d3 b6 d2 g6 h3 b7 h2 f7 g3 g7 Ne7 g8Q Ke3 e6 Nd5 Bb2 Nc6 b8R Bg7 f8N Bc3 Bc4 Nce7 Nh7 Bb7 Nf3 g1B Qg4 g2 Bb3 Rf8 Nh4 Qc8 Kc2 Bf2 Rd1 h1B Ra8 g1Q Rb8 Be5 Nc3 Be1 Na4 Rf2 Nb6 Nf5 Na8 Qf1 Rab1 Qb5 Rbc1 Bg7 Bf6 Bh8 Kb2 Bg7 Rc4 Qb4 Rd4 Qb5 Ra1 d1Q+ Rd2 Qf3 Kc1 Bh8 Rd1 Bc3 Rd4 Nf4 Rd6 Nh5 Rb1 Nhg3 Ra1 Qe8 Rd8 Nf1 Rb1 Qb6 Rb2 Qa7 Rbd2 Qb8 R2d5 Ng7 Rg5 Nf5 Rg8 Bg7 Ng6 Ba1 Nf4 Bh8 Nh5 Qf8 Be7 Bhc3 Ng7 Qe8 Bf6 Qf8 Re8 Qc8 Re7 Qfd8 Ree8 Qb8 Ref8 Qdc8 Rd8
2K2nB1/q2B3p/1pQR4/1P1NrN1r/p1b2n1r/1kNpRr1P/2R1Pqq1/8 b - - 0 2 illegal: No extended proof kernel
1n2B2b/Bp1pR1RK/Ppk5/2n1NN2/1P2QP2/2rnb1pN/2rr3n/1b2R3 b - - 0 1 illegal: Other
1r6/1P2brRR/K2pQ3/1p1P3p/4p1N1/1P1Rnk1N/Bq1bb3/N2Brrb1 b - - 0 2 legal: proof: e4 b5 h4 f5 h5 fxe4 h6 gxh6 b3 h5 Qg4 h4 Qd1 Nc6 Ba3 Ne5 Bb2 Nc4 Ba3 c5 Bb2 Nb6 a4 c4 a5 c3 axb6 cxb2 d4 Kf7 Kd2 Ke6 Kc3 Kd5 Kb4 e5+ Ka5 e3 g4 Ke4 f4 e2 c4 d6 f5 h6 d5 a6 f6 h3 f7 h2 g5 Qe7 g6 Rb8 b7 Nf6 c5 Ng4 g7 Ne3 g8R Qf6 c6 Bg4 c7 Be7 c8B Rh7 f8N Rf7 Nh3 Kf3 Rg7 e4 Na3 b1R Nc2 Qb2 Nh7 Bh5 Qd2 e1B Nf6 Rd1 Qc3 Bd2 Bd3 Re1 Ng4 Rf1 Kb6 a5 Ka6 a4 Qe5 a3 Rd1 a2 Qe6 a1B Bd7 Qf6 Be8 Bd4 Na1 Ba7 Bd7 Qb2 Bb1 Bd4 Ba2 Bc5 Rg1 h1R Rh7 Ba7 Ngf2 Re1 Rgg7 Rhf1 Be8 Nc4 Ng4 Bg1 Rc1 Ne3 Rc3 Rf8 Bg6 Rf7 Rd3 Kg2 Nf6 Be2 Ng4 Kf3 Bh5 Kg3 Ngf2+ Bg4 Ng5 Bd1 Be2 h5 Ng4 Kg2 Nh3 Kg3 Rc3 Kg2 Bc4 Bf3 Be2 Kg3 Bd1 Be2 Rd3 Kg2 Ka7 Kf3 Ka6
n3N3/1PrB1KP1/5pQ1/BB1p2R1/rbnP4/1nRn2p1/rkN1p3/1rR2b2 b - - 0 1 illegal: No proof kernel
2BN1qn1/1N3R1K/nbRP2n1/1rp3BP/1R1q1p1r/2p2Pp1/6p1/1N1b2Qk b - - 0 1 legal: proof: d4 b5 c4 e5 g4 h5 a4 hxg4 axb5 d5 Qd3 dxc4 d5 Nf6 Qd2 Ng8 Qd4 exd4 Kd2 Ke7 h4 Kd6 e4 Ke5 b4 Kf4 e5 f5 b6 a5 e6 g5 b7 a4 e7 d3 e8N g3 b5 a3 b6 g2 Ne2+ Kf3 Nf4 a2 Nd6 g4 Ne6 Na6 b8Q g3 Qa7 Rb8 Nb7 Bc5 d6 Qf8 Kc3 d2 Ned8 d1N+ Kd2 c3+ Kd3 Ne3 Rh2 Ng4 Bg5 Be6 Rh3 Bb3 h5 Bd1 Rh1 Rh6 Rg1 Re6 Rh1 Re4 Rh4 Nh2 Rg4 Ra4 Rb4 Ng4 Rc4 Be3 Rc6 Rb4 Na5 Rb5 b7 Ra8 b8R Bb6 Nab7 f4 Nc5 Ne5+ Kd4 Kg4 Ke4 Kh3 f3 Kh2 Ncb7 Kh1 Bc4 Ng6 Be6 Ba5 Qd4 Bb6 Bc8 Ra7 Rc5 c6 Rf5 c5 Rf7 Ra8 Kf5 Ra7 Na3 Ra8 Rb1 a1Q Rb4 Qb2 Nb1 Qd2 Qf2 Qd4 Qe3 Nc7 Qf2 Ra2 Ra8 Ra1 Ra6 Ba5 Rb6 Na6 Rc6 Bb6 Qe3 Ra2 Qc1 Rf2 Qe3 Rf1 Qe1 Kh2 Qf2 Rh1 Qg1+ Kh3 Rc7 Nh8 Qf2 Kh2 Qf1 Qe3 Rc6 Qd4 Qe2 Kg1 Qe5 Rh4 Qe3+ Kh1 Qf2 Ng6 Qe3 Ne5 Qf2 Nd7 Kg6 Ne5+ Kh7 Ng6 Qg1+
N1N2nR1/Kp2b2P/br3pP1/3Q1BB1/qp5P/2p1n2b/r3qRp1/3Rk1N1 b - - 0 1 illegal: Other
R1N1B1B1/P2Nr1kp/Nq1pP1r1/1p1K3Q/2P5/2b1p1B1/2R2npq/3b1nr1 b - - 0 1 illegal: No proof kernel
3Br3/pQpkp3/2b2RP1/B4Pq1/qN1K4/1N1bp2n/Pp2qnr1/R5NB b - - 0 1 illegal: No proof kernel
K1k5/pP5P/1RNp2nr/R3Q1P1/bp3B2/2Bpb2r/p1q1n1q1/R2N1B1q b - - 0 1 illegal: No possible last move, all moves rejected
5B1r/N2nRN2/1B1p1R1b/PQpqNn1R/2P4p/pkP1pbr1/3bb3/1K6 b - - 0 1 illegal: No proof kernel
q1RB2kb/1rr2ppB/pbp1Pr2/2rB1Q2/K2pNn2/NPRPn3/8/6R1 b - - 0 1 illegal: Other
rR2K1B1/4PNp1/8/p2np1b1/k3b1PN/n1R1N1rp/2R1Q1Pp/B1bbq3 b - - 0 1 illegal: No proof kernel
2bk1Q1q/Kprqp3/1P1Ppb2/2BN1rRq/1p3nrB/R3p3/3NP3/4B1R1 b - - 0 2 illegal: No proof kernel
2RK3B/NRpn4/4q1p1/pp1nP1N1/PP4Nb/RBq4q/2prQ1bn/5k2 b - - 0 2 legal: proof: c4 b5 h4 e5 a4 a5 e4 f5 f4 exf4 d4 d5 b4 dxc4 g4 c3 e5 c2 h5 Na6 d5 Bd7 h6 Qe7 Kf2 Rb8 Ke2 Rb6 Ke1 Rf6 d6 Rf7 Be2 fxg4 Bc4 g6 Bf1 Rg7 hxg7 g3 Ke2 Kf7 Kd3 Ke6 Ke4 h5 Nc3 f3 Qe2 h4 Be3 g2 Re1 h3 Bf2 h2 Nd1 Nb8 Bh4 f2 Nf3 g1Q Ne3 Qg3 Ng4 Bc6+ Kd4 Kf5 Kc5 Kf4 Ra1 Qd7 Ng5 Qe6 Ra3 Nf6 g8R Be7 Rc8 Nd5 Bh3 Bf6 d7 f1N d8N Rh7 Bg2 Rd7 Be4 Ba8 Nc6 Qe1 Bd3 Qc3+ Bc4 Bd8 Na7 Bc6 Rg1 h1Q Rg3 Qh2 Rd3 Qh3 Rd2 Nh2 Rd3 Ne3 Rd6 Bg2 Rb6 Rd2 Rb7 Nd5 Nf6 Qf7 Ng4 Nd7+ Kc6 Qg8 Nh7 Qe8 Bf6 Kg3 Bh8 Bh4 Ng5 Be4 Qd3+ Kg2 Qe2+ Kg1 Rb6 Qe6+ Kb7 Bg2 Bb3 Nc5+ Kb8 Qhe3 Rb7 Qh3 Rg8 Nd7+ Kc8 Nf3 Kd8 Nh2 Rf8 Qd6 Ke8 Qa6 Kf7 Qd6 Rc8 Qb6 Ke8 Qd6 Kd8 Qe6 Qe3+ Kf1 Qe2+
5Rk1/nppprn2/1N4b1/2NBb1bp/nK4B1/1R1QP1pB/2P4P/1q3bN1 b - - 0 2 illegal: Other
kn1qB3/N2ppN1R/p2P1nrB/pnP1P1N1/4pn2/1Rq4b/R3QK2/4r3 b - - 1 2 illegal: No proof kernel
3rB1N1/Q1rRRpN1/PK4b1/N2pp3/3nrn2/P1p1bBB1/r1bpP3/4k3 b - - 0 1 illegal: No proof kernel
1R5N/3p2p1/B1bPQ1r1/1p1p1p2/2qNR2B/P2Pn1pb/n3n3/KR1Nk1r1 b - - 0 1 illegal: No proof kernel
R5b1/p3PN1R/r3B1K1/4N1pp/n1rPk1p1/3p4/1pqNBrnP/2R1b1Q1 b - - 0 1 illegal: No proof kernel
5b2/1q1RBK2/rP1ppBp1/1RbP2r1/p3bk1p/1nN2B2/2pP3N/1rQ2R2 b - - 0 1 illegal: No proof kernel
8/bnp1k1p1/Q1p1n1PB/b1Np2p1/1pb1r3/2R1PRBr/NP1b4/K1R4B b - - 0 2 illegal: No proof kernel
N1n3K1/1R2Rpbn/RNbrqQr1/5P2/3p4/BBnq3r/3P2bP/bBb4k b - - 0 1 illegal: No proof kernel
1n2R1b1/pn5q/2B1rbR1/rr2Np1n/q1B1N3/P2r1PPr/4b1KR/1k2B1Q1 b - - 0 1 legal: proof: d4 e5 c4 exd4 h4 b5 h5 bxc4 h6 gxh6 Kd2 h5 Ke1 h4 b4 Ke7 e4 Kd6 b5 Ke5 g3 h5 b6 f5 f3 c5 Kf2 d5 a3 h3 b7 h2 Qd2 c3 Ne2 d3 Qd1 d4 Qb3 c2 Qf7 h4 Qe8+ Be6 Nec3 d2 Qb5 d1B Qc4 h3 Rg1 h1Q Ra2 d3 Nb5 d2 Qe2 h2 Nd4 c4 Nb3 c3 Nc5 Kd4 e5 Rh3 Qa6 Qa5 Bb5 Qa4 Nd7 Nf6 Rb2 Be7 Qc6 Be2 Qa6 d1R Re1 Nh5 Bh6 c1N Nf8 c2 Bc4 Nb3 Ng6 c1R Qb6+ Nc5 Bd2 Bf6 Nc3 Bg8 e6 Rb1 Ra2 Rb5 e7 Ra5 e8B Rb1 Bc6 Rbb5 Be6 Kd3 Ne4 Nba6 b8R Nb7 Re8 Rd8 Rb1 Nb8 Be1 Rd6 Bf7 Re6 Rc1 Bb2 Rd1+ Kc2 Rd6 Kb1 Qe3 Bf6 Ne5 Re7 Bc4 Re6 Bd2 Qc1 Bb4 h1R Kg2 Rd1 Qg1 Rd3 Be1 Qd2 Rd7 Qh6 Rg7 Qh8 Rg6 Bd1 Kf1 Qh7 Rh2 Be2+ Kg2
2r1R1qq/2b2p1p/1R5P/Br1Bkb1q/1n4Pr/b3KP2/nR2B1Nr/1Q2n1N1 b - - 0 1 illegal: No proof kernel
2B2r2/n1nr2P1/r3Q1np/p2qN3/P1Rb1q2/1N1K2B1/2NRRbqP/2kn1b2 b - - 0 1 legal: proof: e4 d5 c4 dxe4 f4 g5 c5 gxf4 c6 bxc6 Be2 c5 Bf1 c4 Ke2 Kd7 g4 Kc6 a4 Kc5 d4+ Kb4 d5 c5 g5 f5 b3 a5 d6 e5 d7 c3 g6 c4 g7 c2 Qd5 c3 Qd3 h6 Ra3 f3+ Ke3 f2 Ra1 f4+ Ke2 f3+ Ke3 Na6 Qe2 Nc7 Qe1 Ba6 Nd2 Ne7 Bd3 f1Q Ne2 f2 Qd1 Nc8 Rg1 Na7 Qe1 Bc5+ Nd4 Qg2 Ra2 Rf8 Rb2 Ka3 Ke2 f1N+ Qf2 e3 b4 e4 N4b3 Bd4 Ke1 e2 b5 Ne3 b6 Nd1 b7 Qdg5 d8N Qd5 Nf1 Bc4 Be3 c1R b8R c2 Kd2 e1N Bf4 e3+ Ke2 Ra1 Rc8 c1Q Rd2 Nf3 Nc6 Nh4 Bg3 Ng6 Ne5 Rb1 Re8 Rd8 Re6 Rd7 Rc6 Bb5 Rc4 Ba6 Bc2 Kb2 Kd3 e2 Qf7 e1B Qe6 Bef2 Re2 Qf4 Ne3 Rc1 Rge1 Bb5 Rd2 Ba6 Ree2 Rb1 Na1 Kc1 Bb3+ Nc3 Bd1 Rb6 Nec2 Bb5 Re3 Rc6 Bg4 Ra6 Ree2 Nd1 Nb3+ Kb1 Re1 Ne7 Qb6 Ne8 Ke2 Rd6 Bc8 Rd7 Qd6 Ng6 Qe6 Bc6 Rc3 Nc7 Nba1 Kc1 Rc5 Qd6 Rc3 Bf3+ Kd3 Qd5 Rc6 Qh3 Ree2 Bg2 Rc5 Bf1 Rc4 Qhg2 Nb3+
1K2Br1N/N4R2/Qprn1n1N/1r2p1k1/3r1B2/rP2Pb2/R1bqP3/2nBbr2 b - - 0 1 illegal: Other
n2R2r1/3bqR1Q/pB1kpqb1/2n1n3/PbrPb3/4PRqN/7B/nN3B1K b - - 0 1 illegal: No proof kernel
5K1b/p1P1rp1r/N4nB1/n1B1b1RR/1pR1qP2/3b2nq/1P1r1q1B/3Q1Nk1 b - - 0 1 illegal: No possible last move
Kbk3nN/1Rr1rP1p/2b2BNN/R1r5/5pbP/1b2qB2/3QpP2/R1b2nq1 b - - 0 1 illegal: Other
1qq2br1/rn2p1pK/b2p4/QN1NRBP1/6n1/2b1P1N1/brBP1B2/bk3R2 b - - 2 3 illegal: No possible last move
BQ1N3k/N5B1/1Kpn1b2/1pPP4/2r2p2/1PBb1n2/r2qRbr1/1n2qRNr b - - 0 1 illegal: No proof kernel
BN6/r1pkb1Kb/4r2P/RQqq4/1bP3RN/BR2qnp1/q2p1nP1/1Nr5 b - - 0 1 illegal: No proof kernel
R1nNQ1b1/2kn1r1r/5p1R/5n1P/rb1BK1B1/Rp2pPNq/1P1q2B1/q6r b - - 0 1 illegal: No proof kernel
q2r3B/2pq3N/1q2r1pR/b1b2nN1/R1rr1nbN/p1Q3P1/PBK2P2/4kB2 b - - 0 1 illegal: No possible last move, all moves rejected
k3Q3/1qNB4/1q2N2p/2n1Rp1b/1Nq1p1BP/b2nn3/PBb2P1K/r1q1Rr2 b - - 0 1 illegal: No possible last move
R3BB1k/3nrp1b/1pn2q2/1qp5/b1Rr1P2/1B1Qb1P1/1nPbrNKN/1R6 b - - 0 1 legal: proof: e4 d5 b4 dxe4 h4 g5 b5 gxh4 b6 axb6 Bc4 b5 Bf1 b4 f4 e5 Kf2 h5 d4 h3 a4 b6 g3 h4 a5 h2 d5 b3 a6 e3+ Kf3 h3 a7 e4+ Ke2 b2 d6 Ne7 Ra6 Nec6 Ra4 Bd7 Rb4 Qf6 Nd2 b1Q Rc4 Qb5 Ke1 e2 Kf2 e1B+ Ke2 e3 Kf3 e2 Nb1 Bd2 Ra4 e1R Bd3 Re2 Na3 Be7 Re4 O-O Nb1 Rc8 Rc4 Re8 Nc3 Kh8 Ne4 Bf5 d7 Bh7 d8R Nd7 Bb2 Bc5 Nf2 Bce3 Ba3 Rc8 Bf8 Re7 a8B Rb8 Bb7 Ra8 Re4 Ra4 Ra8 Rd4 Bc8 Na7 Bc4 c5 Bb3 Nc6 Kg4 Qa4 Nf3 Qb5 Rg1 h1B Ba6 h2 Kh3 Be1 Qd3 B1d2 Rb1 Bg2+ Kg4 h1N Nh2 Bh3+ Kf3 Bf1 Nh3 Nf2 Bc8 Nd1 Nf2 Bh3 Bb7 Be6 Kg2 Nb2 Bc8 Nde5 Bd7 Bc4 Ba2 Bb3 Be8 Ba4 Bc4 Nd7 Bb3 Rd5 Rb4 Rd4 Rc4
n1NN2RB/4nr2/Q1B1p2q/n1prr3/2B2nRq/1R1b1Kb1/2PpP2P/2q2k2 b - - 0 1 illegal: No proof kernel
bnrN1k1B/3n1B1p/q1r5/6R1/1b4r1/2pB2r1/pNP1P1RP/rQKb1r1N b - - 0 1 legal: proof: d4 e5 a4 exd4 f4 b5 f5 bxa4 f6 gxf6 Bf4 f5 Bc1 f4 Kd2 a5 b4 c5 g4 f5 g5 d5 b5 d3 g6 f3 b6 d4 g7 a3 b7 a4 Bh3 f4 Nc3 c4 Nb1 f2 Be6 f1R Bd5 f3 Nh3 f2 Nc3 a2 Bg2 a3 Bf3 Rg1 Ne4 f1R Nc3 Qa5 Rb1 a1R Rb3 a2 Rb5 Rg4 Bb2 Ra6 Rf5 Rc6 Qb1 Bb4 Be4 Nf6 g8B Kf8 Bf7 Qa6 Rg5 Nfd7 Rg1 Rf3 Rg2 Rfg3 Kc1 Rg8 Nd1 Rh8 Bc3 d2+ Kb2 d3 Nhf2 Rg8 Nh1 Rh8 Ne3 d1R Be5 d2 Bd3 Rg8 Bh8 Re1 Nd1 Rf1 Ne3 d1B Kc1 c3 Nc4 Nb6 Nb2 Be6 Bb5 N6d7 Bd3 Bd5 Rg1 Ke7 Bfg6 Rcc4 Bh5 Rgc8 Be8 Nc6 b8N Kf8 Bh5 Ne7 Be8 Ba8 Nc6 Rc5 Nd8 Nc6 Rg2 Ncb8 Beg6 R5c6 Bf7
1RnB4/2bp3B/1N1Pp3/NQ2K2k/1pb2Rr1/1P1rP1b1/2r1n1R1/Nq1r2bb b - - 1 3 illegal: No proof kernel
1Q2q3/5ppq/R1P1qkn1/q3p1b1/1R1r2BN/nr2N1B1/q3PPR1/qN2Kb2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 g5 axb4 g6 hxg6 Qd3 g5 Qd1 g4 a4 e5 c4 Ke7 h4 b5 a5 d5 c5 b3 h5 b2 h6 d3 c6 g3 h7 g2 a6 d4 a7 b4 Bf4 b3 Rh5 Na6 Nh3 g1Q Bh2 Rb8 a8R Nc7 Bg3 Qe8 Qd2 Nb5 Nc3 b1Q+ Nd1 b2 Qe3 Qa2 Rf5 Na3 Ra6 b1Q Qe4 Qbb3 Bh2 Qg6 Bg2 d2+ Kf1 d3 Rb1 Qc3 Rb5 Qa5 Qa4 Ke6 Ne3 Be7 Rh5 Bg5 Qb4 Ne7 Ng1 Rb7 Bg3 d1Q+ Qe1 d2 Nf3 Qda4 Qb1 Q4b3 Rh2 Kf6 Bh3 Qc4 Qb4 Bf5 Qd6+ Qe6 Qb8 Qh6 Rc5 Rb6 Rc4 Rb3 Rb4 d1Q+ Kg2 Qb5 Nd2 Qda1 Nb1 Qa5 Kf1 Be4 Bf5 Bg2+ Ke1 Bf1 Rg2 Q8d7 Qb7 Rd8 h8N Qh7 Ng6 Qe8 Bg4 Rd4 Nh4 Ng6 Qb8
n2B1b2/kpR1r1rp/1P1NPrr1/1BQ1bp2/3B1n2/8/1R1N1Pn1/1bqbRK2 b - - 0 1 illegal: No possible last move
N1Knr2B/R4p2/1B1NrP2/pbp1N2B/P2rP2k/4q1b1/nRQ5/bb3r1q b - - 0 1 legal: proof: d4 e5 c4 exd4 h4 b5 h5 bxc4 h6 gxh6 Kd2 h5 Ke1 h4 Kd2 Ke7 f4 Kf6 e4 a5 b4 c5 a4 d5 g4 h5 f5 Kg5 b5 h3 f6 h4 b6 h2 b7 d3 Ke3 d4+ Kf3+ d2 Ne2 c3 Nf4 c2 Ng6 h3 Nc3 d3 Ne5 Bd6 Nd5 Bd7 Nb6 Kh4 Kf4 Nc6 b8B Nb4 g5 Na2 g6 Ne7 g7 Bb5 g8N Nc6 Ne7 Ra6 Ba7 Re8 Rb1 Qc8 Rg1 h1Q Na8 h2 Rg2 Nd8 Bb6 Qh3 Be2 Qe3+ Kf5 Bb8 Bh5 Bc7 Qe2 d1B Nc8 d2 Nd6 Bb8 Qd3 Be2 Rb2 d1R Rg8 Rd2 Qc4 Rd4 Bd2 c1B Qc2 Bed3 Rh8 Qe2 Bh6 Qe3 Bg7 Bd2 Rf8 Bc3 Bh8 Bc7 Rb3 Ba1 Rb2 Qg2 Rg8 h1R Rf8 Re1 Rg8 Qh1 Rf8 Re7 Re8 Re6 Re7 Bb8 Ra7 Re8 Qc4 Bb1 Qc2 Ne6 Ng4 Rf1+ Ke5 Rc4 Kd5 Nd8 Ne5 Re1 Nb7 Qeg1 Nd3 Rb4 Bc7 Rae6 Bb6 Be5 Nd6 Bg3 Ne5 Qe3 Ndc4 R6e7 Kd6 Re6+ Kc7 Rf1 Nd6 Rd4 Kc8
bR2K1Br/1p1Pb1bb/8/B1prrQr1/2n1NN1p/qR3B1P/2Pn2q1/6kN b - - 0 1 illegal: Other
2nQrN1n/1bk1bN2/4p1p1/1nq1PB2/2Npq3/r1B4n/1KP1bbP1/1R2RR2 b - - 0 1 illegal: No proof kernel
4KBb1/1q2prBp/rpB1q1qP/1NR1P1PN/p2R4/2rQ1b2/Rn5b/4k2n b - - 0 1 illegal: No proof kernel
bQ3qq1/K2pN1np/1R1b1rp1/2r2npP/2q1N3/2rP4/RR2B1P1/Bn2k1B1 b - - 2 3 illegal: No proof kernel
b1Q1Rbb1/r1b2pB1/B3pBn1/2p3qN/K1p1b1R1/5P1N/2P1P1r1/2rkn1R1 b - - 0 3 legal: proof: g4 h5 b4 hxg4 d3 d5 Qd2 a5 Qc3 axb4 Qc4 dxc4 Kd2 Kd7 a4 Kc6 h4 Kc5 f3 Kd4 a5 g5 a6 b5 h5 b3 a7 g3 h6 g2 h7 b2 Ra2 g4 Ra6 g3 Na3 b1B Rah6 Nd7 Rb6 Nc5 Rbh6 Ba2 R1h2 Bf5 Nh3 g1B Nb1 g2 Nf2 e6 Nh3 Ne7 Nc3 Ng6 Ne4 Rg8 Rh1 Bh2 h8R g1R Rh4 Qg5+ Rf4 c6 Ng3+ Be4 Ba3 Rg2 Kc1 Ke3 Kb2 Kd2 d4 Kd1 d5 Nd3+ Kc3 Rg7 d6 Ne1 d7 Rg1 Nh5 Rg8 Rh4 Bc7 d8B Bd3 Rf4 c5 Rf5 Ne5 Ng7 b4+ Kb2 b3 Rh4 Qg6 Bb4 Ng2 Ka3 b2 Ka4 Kc1 Ka3 b1B Nf2 Bb3 Nh5 Qf6 Bc3 B1a2 Rd4 Ba4 Rff4 B2b3 Rd7 Rg4 Re7 Bh7 Re8 Ng6 Be5 Qh4 Bg7 Bg8 Bdf6 Bc6 Rd4 Bba4 Rf4 Rb8 a8Q Rb7 Qc8 Ra7 Re4 Ba8 Rf4 Ne1 Bh3 R4g2 Bf5 Qg5 Be4 Nd3 Bb7 Bc6+ Ba6 Be4 Ka4 Kd2 Rfh4 Rc1 Rg4 Ne1 Nh3 Kd1 Rg1
5b2/p3NKQ1/Ppb1p1Pr/2r2R2/1BN2r1b/2Rrp3/B1nBP1k1/2nN2nq b - - 0 1 illegal: No proof kernel
nkR2N2/p2p2Bb/2qb1QnN/P3pp2/R5nb/3Kn1rr/1B2PP1B/R1r5 b - - 1 3 legal: proof: d4 c5 a4 cxd4 g4 b5 a5 h5 Bg2 hxg4 Bd5 Nh6 Bb3 Ng8 Ba4 bxa4 Kd2 g5 c4 a3 b4 d3 h4 g3 b5 g4 b6 a2 c5 g2 h5 g3 h6 Nf6 h7 Na6 b7 Ng4 b8B Qc7 c6 Kd8 Rh3 Bb7 Qf1 Kc8 Kc3 d2 Na3 d1N+ Kc4 Nde3+ Kc3 f5 Nf3 g1N Qe1 g2 Ne5 Nf3 Qd2 g1R Ng6 Rg3 Kd3 Nh4 Bb2 e6 Rhh1 Bd6 Nf8 Ng6 Nc2 Qb6 c7 Bd5 Rhf1 Qc6 Qc3 Kb7 c8R Nc7 Qf6 Bb3 Rae1 a1B Rh1 Bd5 Rh4 Bb3 Bd4 Bb2 Ra1 Bba3 Bb2 Be7 Rhh1 Bad6 Ra4 Ba2 Ra1 Bb3 Qd4 Bh4 Qg7 Rg1 Qf6 Rc1 Be5 Rg8 h8B Ba2 Bh2 e5 Bg7 Ncd5 Bc7 Nb6 Bd8 Bf7 Rc7+ Kb8 Be7 Rh8 Nh7 Bg8 Nf8 Bb4 Bc5 Bh7 Bd4 Bd6 Bb2 Nh6 Qe7 Ng2 R4a3 Bg3 Bf6 N6h4 Bg7 Bg6 Rb7+ Kc8 Ne3 Rg8 Ng4 Ne3 Qf6 Rh8 Rb8+ Kc7 Re8 Rd8 Nh7 Kb8 Ra4 Na8 Ng5 Rh7 Rh8 Rg8 Bf8 Rhg7 Ne6 Bh7 Nf4 Rg5 Ne6 R8g6 Rg8 Rh5 Rh8 Rgg5 Rg8 Ng6 Bg7+ Kb7 Rf8 Rh3 Rc8 Bh4 Rc7+ Kb8 Nf8 Ng8 Qf7 Nf6 Nh6 Rgg3 Qe7 Nfg4 Qe6 Qc5 Qf6 Qc6 Rc8+
4n1bQ/Rp1K4/nR1p4/1RbPBrq1/2rrqr1B/3B1N1p/1np1PNkP/8 b - - 0 1 illegal: No proof kernel
1K1R2nn/1bB3BR/2pppb2/2PPP1N1/q2Q4/Nk5q/1p1rN2r/Br2b2b b - - 2 3 legal: proof: g4 h5 b4 hxg4 b5 f5 b6 g3 Bh3 g2 Bg4 fxg4 Na3 axb6 Nb1 b5 Ba3 b4 Bb2 Na6 Bc1 Nb8 f4 Kf7 Kf2 Ke6 Ke3 Kd5 d4 Kc4 Ke4 g5 Ke5 b5 h4 b3 a4 e6 e4 b4 h5 g3 f5 c6 a5 g4 h6 b2 a6 b3 d5 Qa5 c3 Qa4 h7 Bb4 f6 Bb7 Nf3 g1B a7 g2 f7 g3 f8B Bb6 Bch6 g1Q Bf4 g2 Ng5 Bd8 Bg7 Qf1 Ra3 Bba5 Kd6 g1R Ra2 Bf6 Qd4+ Kb5 c4+ Kb4 Ra3 Qh3 Nc3 b1B Ne2 Bc2 Ra2 Rb1 Rb2 Ka3 c5 Be1 Kc7 Bd3 Bd2 d6 Ba5 Nd7 Rh2 Rb8 a8N Rf8 Nb6 Ne5 Rh1 Rf7+ Kb8 Ng6 Rh2 Rd1 Rb1 Rd2 Nc4+ Ka2 Na3 Rc7 Nf4 Be2 Bb6 Bf3 Ne2 Rf7 Bc7 Bh1 Ng1 Be7 Ne2 Rf1 Rf2 Rg1 Rf8 Bf6 Rc1 Bh4 Rc3 Rb1 Rd8 Be1 Rf3 Be7 Rf7 Bf6 Qb4 Be7 Ba1 b2 e5 Bf6 Qd4 Kb3 Rfd7 Nh6 Nc2 Rg8 Na3 Nh8 Re7 Rg6 Red7 Ng8 Re7 Rh6 Rf7 Ng6 h8B Rh5 Bg7 Nh8 Nc4 Qd3 Na3 Rh2 Bh6 Qf5 Rh7 Qh3 Bg7
1NN1n1n1/q1Q1pB1q/3nPrk1/R1pK4/P1PRrR1n/p1B5/rb1p3N/7b b - - 0 1 illegal: No possible last move
r2BBB2/3K1n1q/3p1Nn1/6NR/1p1b3q/2pp1Q2/kPbPq1P1/rqb2RR1 b - - 0 1 illegal: No proof kernel forced: bxDB
2qb2QB/n1rNbN2/3r1qpp/r1r1Bp1b/1kB1R1P1/2pR1P2/1P1R2K1/2n5 b - - 0 1 illegal: No proof kernel
1nK2b2/q1pp1pPp/2P1n2B/1r1b2qN/5P1R/1r2q1N1/N1q1BR1Q/k2n1R2 b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 b5 gxh4 b6 axb6 Ba3 b5 Bc1 b4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 f4 b5 e4+ d3 a4 h3 g4 b3 g5 b2 a5 h2 a6 b4 g6 b3 a7 Nh6 Nc3 b1Q Qe2 Qa2 Bb2 Bb7 g7 Qe8+ Kf6 Bc5 e5 Nc6 e6 Nf5 e7 Rb8 a8R Nfd4 Re1 Qa1 Ra2 Rf8 Ba3 b2 Qh5 b1Q Nge2 Qd8 Ng3 Ne6 Rb2 Qaa2 Rc1 Qb3 Na2 Qa4 c3 Qa7 Rbc2 Kb3 c4 Bb4 c5 d2 Ba6 Ba8 Rcf1 d1N Rg2 Qc2 Be2 Bd2 Bb4 Kb2 Qh3 Ka1 Qh6 Qc8 e8N Rg8 Ba3 Bb4 Qh5 Qca6 Qh6 Qa5 Qh3 Ne5 Ke7 Rb6 Nf6 Rgb8 Nfh5 Nc6+ Kf6 R8b7 Qh4 Nb8 Ke7 Nf8 Kd8 Ne6+ Kc8 Qb5 Ne4 Qbd3 Rgf2 Qe3 Rhg1 h1Q Rg4 Qg2 Qh2 Qg1 Rh4 Qg6 Bc1 Ba3 Neg3 Rb3 Bb2+ Kb1 Rf3 R7b5 R3f2 Bd5 c6 Bf8 Bf6 Qh6 Be7 Ka1 Bg5 Qhg6 Bh6 Qg4 Rh1 Qg5 Rhf1
4nB2/1rPQKB1n/r5R1/2p2pRn/q2kB1bq/bp3Rp1/1PP2nr1/2N4N b - - 0 1 illegal: Other
N2r4/Np3K1R/p1n3rp/k3bb1n/rN1p2Qq/B6R/1P1PP1q1/1nBr3B b - - 0 1 illegal: No proof kernel
4N2K/1p1r1qRb/4p1q1/R1P2qpB/1Bk3q1/pn2bN1b/1P1rn1P1/2Q1N1B1 b - - 0 1 illegal: No proof kernel
N3N2N/ppK1bB1r/4pbn1/1P1b1q1p/bQB5/2n2r1R/P1Pb1R2/1kB1b3 b - - 0 1 illegal: No proof kernel
rB2R3/5q1b/p2r2R1/nppb1R1P/1B1N4/P1PKbQ1B/1p3p1r/1N3nnk b - - 0 1 illegal: No proof kernel
2rk1b2/pb1rqnrB/1p4q1/p1P3R1/PB1nRK2/1p4BQ/1P3b1p/N1R3N1 b - - 0 1 illegal: Other
B1q4n/1NprpB1K/k2Q1q1p/2Rr3P/2P3PN/n1B1Rbnp/1N5p/2b1q3 b - - 0 1 illegal: No proof kernel
nq2r1B1/6b1/p1N1N1qp/r1p1kB1n/2b3R1/b2R4/PpP1rpKP/Q5RN b - - 0 3 illegal: No proof kernel
1r1N3B/5p2/1Rp1rPbk/2P4P/KBp4R/2b1qNnb/1pp1b2N/1BQ2n1b b - - 0 1 illegal: No proof kernel
1bR1Bn2/3Q4/rr1B1pN1/1qN1P3/b1ppBP2/2bP1p1K/nn1p4/1nk3RR b - - 0 1 illegal: No possible last move
3rB1Bb/BKRnp2p/p3br1P/2q3NP/pb1pR2k/3n1R2/1n2P2N/2b1Q3 b - - 0 1 illegal: Other
NR4rQ/k1prP3/1q2Nr1R/bp4p1/B3pnKB/BP2pn2/1q1rP3/1N3b2 b - - 0 1 illegal: Other
bb1nB3/N4q2/kp3bn1/Rp1r4/qrpQp1pN/1P4b1/1R1P2P1/1B2RKB1 b - - 0 1 illegal: No possible last move
n1R3K1/p1Rppp2/2rp1P1Q/bp1Bk1N1/RP1r3B/B3q2b/3Pn1bN/6n1 b - - 2 3 illegal: No proof kernel
5Q1r/2rB1bk1/1N6/2QN1Pb1/3Pq2n/1r3RP1/nR1q1bnr/K1B3Q1 b - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 c5 c4 cxb4 cxd5 g5 h4 gxh4 axb5 a6 Qf3 axb5 Qg4 Bb7 Qd1 Bc8 f4 Kf7 d6 e5 d7 h5 g3 e4 f6 b3 d3 b2 Kd2 b4 Kc2 e3 f5 h3 Ra2 b3+ Kc3 h4 Qg4 h2 Bg2 h3 Qf3 e2 Bf4 e1B+ Nd2 b1Q Bg5 b2 Ra6 Nc6 Qf4 Nb4 Bh4 Na2+ Kb3 Be7 Qb4 Bf2 Ne2 Ra7 Rb6 Rc7 Rf1 h1R Bc6 h2 Nc4 Kf8 f7 Kg7 Nf4 Bg5 Bb5 Ne7 Qc5 Ng6 Nd5 Qc2+ Ka3 b1R d4 Qe8 d8Q Qee4 Qde7 Be6 Bd7 Qd2 Rb3 Rb2 Ncb6 Rb1 Rf3 Rb2 Ra1 Rhb1 Qc1 h1N Qg1 Rbc2 Qc5 Rb3+ Ka4 Bf4 Bd8 Bg5 Rb1 Nh4 f8Q+ Kh7 Qe8 Bf7 Rb2 Kg7 Be7 Be1 Bd6 Nf2 Bf4 Ng4 Qd8 Ne3 Qde7 Rb4+ Ka3 Neg2 Qe8 Bf2 Be3 Qd1 Bc1 Qd2 Qce7 R2c6 Qc5 Rch6 Qd8 Ng6 Qe8 Rh2 Qa8 N6h4 Qd8 Kh7 Qdf8 Rb3+ Ka4 Nb4 Rb1 Rd3 Rb3 Na2 Ka3 Qde1 Kb2 Qd2+ Ka1 Rc3 Qe8 Kg7 Rb2 Rb3 Qef8+
1q1k1nK1/1nb2Q2/1PN5/q1qN1PR1/5rQB/7B/brqP1n2/2QR1b2 b - - 0 1 legal: proof: f4 g5 b4 b5 c4 e5 h4 d5 cxd5 gxh4 e4 f5 exf5 exf4 a4 a5 axb5 axb4 Kf2 c5 Kf3 h5 Ke4 c4 Ke5 f3 g4 b3 b6 f2 d6 b2 g5 c3 g6 h3 g7 h4 Be2 f1B Na3 b1Q Qb3 c2 Qd3 h2 Qa6 h3 Bd3 Rh4 Nb5 Nh6 g8Q Nd7+ Ke6 Nf7 Qa4 Rf4 Ba3 c1Q Na7 Qc5 Ne2 Qbc2 Rg1 h1N Nc6 h2 Rg5 Nf2 Rd1 h1Q Nc3 Bb7 Qd4 Qb8 Nd5 Qg2 Bb2 Ra2 Qc4 Qa5 Bf6 Rb2 Be2 Qg3 Bg4 Qga3 Bh3 Q3c5 Qe2 Ba6 Qg4 Bac4 Qg7 Ba2 Bd8 Rb1 Qa1 Rb2 Qc1 Bh6 Be7 Nf8+ Kf6 Nd7+ Kg6 Bg7 Kh7 Be5 Kg8 Nf8 Bf6 Kd7 Bd8 Kc8 Bf6 Nd8 d7+ Kb7 Be7 Bc7 Bf6 Nf7 d8Q Nd6 Qe7 Kc8 Qf7 Nb7 Rh5 Rf3 Bh4 Rf4 Nce7+ Kd7 Rg5 Kd8 Nc6+
5n2/2k3K1/2Q3R1/3PN2Q/2Bp2n1/b1P2q1R/3rnqPB/rNbb1n1N b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 b4 c5 d3 a5 d4 axb4 Ra7 d6 Rd7 Ra4 d5 Ra8 Qd4 cxd4 Rxd6 Ra7 Rd7 Ra8 Kd2 h5 Kd3 e5 Ke4 b3 f4 b2 f6 h3 Kf5 h2 Kg6 e4 b6 e3 c3 h4 b7 e2 f5 e1B Nh3 Nh6 Be2 Ra1 Rf7 Bd2 Rd7 Ba3 Bd3 Ng4 Be4 Rf8 Rd6 Nd7 Nf2 h3 b8Q Qa5 f7+ Kd8 Qb4 Kc7 f6 Qa8 Re1 h1N Bd3 h2 Qa4 Ng3 Bc4 h1Q Kg7 Qh5 Re3 Ne2 Nh1 Qh3 Qb5 Qf3 Ra6 Re8 f8N Re4 Ng6 Nf8 f7 Qc6 Kg8 Qcf6 Ne5 Qh4 Rf6 Qhf2 Kg7 Bd7 Qa6 Ba4 Rg6 Bd1 Rd3 Bg5 Bf4 Re3 Qb5 Re4 Bh2 Bc1 Qa6 Rf4 Qe6 Rf6 Qf5 Rb6 Qh5 Rb8 Nd2 b1N Re3 Rb2 Rd3 Nh7 f8Q Rc2 Qf6 Nf8 Ne4 Nd2 Qc6+ Kb8 Re3 Nf1 Nd2 Rca2 Nb1 Rd2 Qe6 Kc7 Rd3 Qe4 Rh3 Qef3 Qc6+
3n1B1N/4kpPB/1npR2r1/1Qr1N1n1/3q1R1K/P1B3P1/q3bn1b/3Q4 b - - 0 1 illegal: No possible last move
1rR2R2/1BQ3bQ/q2kbbBp/4p3/1qPB3b/2pr2P1/3NPN2/1b1K4 b - - 0 1 legal: proof: g4 g5 a4 f5 Nf3 fxg4 Rg1 b5 axb5 g3 Bg2 g4 Na3 Na6 Kf1 Nc5 Ke1 Ne4 Bh3 g2 Nb1 g3 Rh1 g1B Bf1 g2 b4 d5 c4 c5 b6 a5 b5 d4 b7 Nh6 b8R Nf5 Qc2 Nfg3 Qc3 dxc3 hxg3 Ng5 Nh2 Ne6 Nf3 Nc7 Rb6 Na6 bxa6 Qc7 Rb5 Qd8 Rb4 cxb4 d4 Kd7 d5 e5 d6 h6 a7 b3 Nbd2 b2 Ng5 b1B f4 a4 f5 a3 f6 a2 f7 Bc2 Nh3 Qa5 Nf2 Kc6 d7 Bb1 d8Q Qb4 Kd1 Bg7 f8Q Rb8 Qg8 Be6 a8B+ Kc5 Qa5+ Kd6 Qh7 Rhd8 Be4 Bf6 Bg6 Bg7 Nd3 Bb6 Nf2 g1B Bg2 Be3 Bf3 Bg5 Bb7 B5f6 Rh5 Rd7 Rf5 Bh4 Rf8 Bhf6 Nh3 Be3 Nf2 Beg5 Qd8 Bh4 Qc8 Bbf5 Rb1 a1Q Qc7+ Ke7 Rb3 Bb1 Ra3 Qa2 Ra8 Qa6 Ba3 Qc5 Bb4 Qcd6 Ba5 Qc5 Bb6 Qb4 Qc6 Rd3 Bd4 Rd8 Qc5+ Kd7 Qa5 Kd6 Rc8 Re8 Rc7 Ra8 Rcc8 Rb8 Qc7#
1b3B1Q/4Nb2/2Qp1B2/pq1PN3/kp3Rr1/2P5/1np1P1rp/1R2Q1nK b - - 0 1 legal: proof: g4 d5 b4 f5 gxf5 g5 h4 b5 hxg5 c6 a4 c5 axb5 cxb4 c3 d4 Bg2 Bg7 Be4 Bh6 Bc2 d3 Rh4 dxc2 Rh1 Na6 d3 Nb8 Qd2 Bg7 Qf4 Bf8 Qd6 exd6 Kf1 Kd7 Kg2 h5 f4 a5 f6 h4 g6 Bb7+ Nf3 Nh6 g7 Bd5 g8Q Rh7 f7 Ng4 f5 Ra7 f6 Be7 f8Q Bc4 f7 Ne5 b6 Kc6 d4 Kb5 b7 Bf6 Bg5 Nbd7 b8Q+ Qb6 Qb7 Nd3 Qh8 Rg7 Ne5 Nb2 Ng6 Bd8 Rf1 h3+ Kh1 h2 Rf4 Bc7 Bf6 Ne5 Nd2 Bb8 Ne7 Rg4 Rb1 Ka4 Nf3 Qb5 Qc6 Be6 d5 Rc7 Nh4 Nf3 Nhg6 Ng1 Ne5 Rc8 Qfg7 Rg8 f8B Bf7 Qg5 Rg2 Qg3 Rg4 Qe1
1Q2bbrR/Q2bB2r/Kn1bq3/1RR3n1/kB2n2P/P6q/6Pb/2r1NN2 b - - 0 1 legal: proof: e4 f5 f4 a5 c4 d5 cxd5 h5 Qxh5+ g6 b4 axb4 Qh7 Qd7 Be2 Qd6 Bg4 fxe4 f5 Qd7 f6 Qd8 Bf5 gxf5 Ke2 Kd7 d4 b5 h4 c5 f7 e5 d6 Kc6 d7 c4 a3 b3 Nf3 f4 Re1 e3 Bd2 c3 Kd3 b2 Qh6+ Nf6 Qh7 c2 Ba5 c1R Bc7 e4+ Ke2 b4 d5+ Kb5 d6 b3 Qg8 Nh7 Ba5 Ng5 Bd2 Qe7 d8B Bd7 Nd4+ Ka4 Qg7 f3+ Kf1 e2+ Kf2 e3+ Kg1 Rh7 Rf1 e1B Nc2 e2 Bb4 Qe6 Nd2 b1N Be7 Nc3 Rb1 Bg3 Ne1 Bh2+ Kf2 Nce4+ Ke3 f2 Kd3 b2 Kd4 Be8 d7 Qh3 d8R Nd7 Rh1 f1Q Rb8 Qf4 Nf1 Qfg4 Rb5 Nb6 Rg1 Nc3+ Kc5 Qe6 Qd4 Rb8 Qd7 Bd6+ Kc6 Rc8+ Kb7 Nce4 Ka6 Ra8+ Qa7 Bd7 Nc2 e1B Rc5 Bf2 Ne1 Bfg3 Rc8 Bh2 Rb8 Bh6 Rh8 Rg8 f8Q Bg7 Qfb8 Bf8 Ra1 b1B Rh1 Bc2 Rb1 Bd1 Rb3 Bh5 Rc3 Bhe8 Rc5 Qhf5 Rb5 Bhg3 Rh3 Bh2 Rc3 Qh3 Rcc5
1n5q/b3k1bB/1B1q2nP/3N1PQ1/2rPr3/2r1RNR1/4bnb1/K2b1R1Q b - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 Ra2 fxe4 Ra6 Be6 Ra1 Bc8 h4 h5 g4 g5 Qa4 Qd5 Qc2 gxh4 Qb3 h3 Qf3 h4 Qd1 Qh5 gxh5 Bg7 Ne2 Bh6 Ng1 Bf8 b4 c5 f4 e5 h6 a5 b6 h2 b7 a4 b5 e3 d3 e4 b6 a3 f5 e2 Kd2 e1N Kc3 e3 Qf3 a2 Kb2 h3 Nc3 e2 Qg3 Ra4 Bg2 Ne7 Ne4 c3+ Kb3 c2 Kb2 c4 Bg5 c1R Qe3 c3+ Kb3 c2 Kb2 Ng6 Bf3 Bg7+ Bf6 Rc4 Bc3 Ke7 Bd4 Re8 Bh5 Be6 Rb1 a1Q+ Kb3 Bd7 Nf3 Bb5 Rg1 h1B Rg3 h2 Qd2 Ba6 Nf6 Bg2 Qg5 h1B Bf2 Qd4 Ka2 Qd6 Ka1 Bb5 Bd4 Ba4 Bg1 Bf1 Bc5 Bhg2 d4 Nd3 Nh4 e1B Nf3 Nh8 Bf7 Be2 Bg6 Nf2 Bh7 Bb3 Bg6 Ba5 Bh7 Rf1 Re1 Ng6 Rb1 Rh1 Rg1 Rh3 Rf1 Nc6 b8R Bb4 Rc8 Nb8 b7 Ba5 Rg1 Bb6 Rf1 Ba7 Bb6 Ba4 Rc6 Bb3 Rc5 Ba4 Rb5 c1Q+ Rb1 Qcf4 Rb3 Qfe5 Re3 Bad1 Rg4 Nc6 b8Q Rg3 Qa8 Rh3 Nh4 Rf3 Rg3 Nb8 Ra3 Re3 Nf3 Re4 Qc6 Rc8 Re3 Rc3 Qd5 R8c4 Qa8 Qb5 Qd5 Qe8 Qc6 Qh8 Qa8 Re5 Qe4 Re6 Qeh4 Re5 Qh1 Re4 Nd5+
1r2q2Q/2N2Q2/B1RPP3/2N1q1P1/4r1qR/n1nrb3/2bR2kq/bB2Kn2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 dxc4 Ba3 exf4 axb5 Bd6 b6 Bc5 b5 Bf8 Bb4 axb4 e4 Ke7 g4 Ke6 d4 f5 d5+ Ke5 d6 h5 g6 c5 g5 f3 b7 Kf4 e5 Kg3 b6 f2+ Kd2 c3+ Ke2 h4 g7 c2 Na3 c1R Nc4 h3 Qd4 f4 Qc3+ f3+ Kd2 h2 Qd4 b3 Ne3 c4 Nh3 b2 Qc3 b1Q Ra4 Nc6 b8Q Nb4 b7 Qf5 Ng4 Nc2 Qa5 Qe8 Ng1 Rh4 Ra1 Ne7 g8B Na3 Qb6 c3+ Ke3 c2 Kd2 Nd5 Ne3 Re4 Bh7 Nc3 Qb3 Qg4 Ba6 f1Q Nh3 f2 Nd5 Qfb5 Nc7 Bf5 Qf7 Bg7 e6 Qe5 Nf4 Rce1 Bg6 R1e3 Nd3 Kg2 Nc5 Bf6 Rhd1 h1Q Rac1 Qhh2 Qd8 Rf3 b8R Rh3 Rb6 Rb8 Rc6 Rg3 Rh1 Rf3 Rcd1 Rh3 Be2 f1N+ Ke1 c1B Bh7 Be3 Ba6 Ra4 Qc8 Bc2 Bhd3 Re4 Qd8 Bb3 Bb1 Bc2 Qc8 Rf3 Qd8 Rf2 Qc8 Rd2 Qd8 Rd3 Qc8 Qg1 Rh4 Qgh2 Qd8 Bh8 Qdf6 Bg7 Qh6 Bf6 Qh8 Na2 Qhg7 Qef5 Nd5 Ba1 Nc7 Qfe5 Qh8 Nc3 Rd2+
N1Qq1n1b/rbq1P1n1/r3NP2/1qQ1B3/1n5P/2b1rR1k/3N1R1r/4B1K1 b - - 0 1 legal: proof: g4 d5 d4 e5 a4 h5 e4 b5 axb5 hxg4 c4 f6 Bg2 f5 cxd5 exd4 e5 Qe7 Bf3 Qd8 Be4 fxe4 Kf1 Kf7 b4 Kg6 f4 Kh5 e6 Kh4 h3 a5 e7 c5 d6 g5 d7 c4 b6 a4 b5 g3 b7 g2+ Kf2 c3 f5 a3 f6 e3+ Kf3 d3 b6 g4+ Kf4 g3 Kf3 c2 Qd2 e2 Nc3 e1N+ Ke3 a2 Qd1 d2 Ne4 Nd3 Qe1 d1R Bb2 c1Q+ Kf3 Ra7 Qc3 Re1 Nc5 Bg7 Ne6 Nb4 Rh2 Nh6 Nc7 Nf5 Na8 Ra6 Qa3 Qcc7 Be5 Rh5 Qc1 Bh8 Qc5 Ng7 Rd1 a1R Rd3 Re2 Bc3 Ra7 Be1 R1a6 Ra3 Qe8 d8N Nd7 b8Q Nf8 b7 Qb5 Ne6 Re4 Ne2 g1Q Nc3 Qd4 Kg2 Qdd8 Nb1 Re3 Kg1 Rh6 Rf2 g2 Nb6 Rh7 Qa8 Rh6 b8B Bb7 Rb3 Qcc6 Be5 Qcc7 Qc8 Rh5 Nd2 Rh7 Qc6 Rh5 Kh2 g1B+ Kh1 Bh2 Na8 Bg3 Kg1 Rh7 Bd6 Be5 Qc5 Bc3 Be5 Rf3 Nf4 Bd4 Re3 Bc3 Re4 Rd3 Re3 Rh6 Ref3 Re3 Kh1 Rg6 Ne6 Rg2 Bd6 Rh2+ Kg1 Qbc6 Be5 Qb5 Rf4+ Kg3 h4 Kh3 R4f3+
1N1qnN2/Kn1nk3/n7/R4r1q/q1QPB1nb/4P2n/2r1B1P1/2RQ1Nb1 b - - 0 1 legal: proof: c4 d5 a4 dxc4 h3 g5 b3 b5 axb5 g4 Bb2 g3 Bf6 Bg4 hxg4 exf6 Qc1 gxf2+ Kd1 f5 Kc2 f4 Qd1 Kd7 Kc1 Ke8 Kc2 a5 Kc3 f5 d4 c5 b4 h5 b6 f3 g5 a4 b7 a3 b5 f4 g6 a2 g7 h4 b6 h3 Qd2 h2 Qc1 Ke7 Qa3 Nf6 g8B Nfd7 Be6 Ra5 Bd5 Na6 Kb2 c3+ Kb3 c2 Kc4 c1B b8N Be3 b7 Rh5 Bc6 Rf5 Be4 Ra4+ Kb5 Rc4 Qd3 Rc2 Bd5 c4 Kc6 c3 Kb5 Bg7 Qc4 Bf6 Na3 Bh4 Rd1 a1Q Nh3 Qa2 Rg1 h1N Kc6 Qb3 Be6 Qa4+ Qb5 Ng3 Nc4 Nh5 Bg8 Ng7 Rb1 Ne8 Rb4 Ra2 Rb1 c2 Bd5 c1N Rb3 Rc2 Ng5 Nd3 Nh7 N3c5 Na3 Ne4+ Nc4 Ng5 Rh1 Nh3 Rb2 Qa3 Ra2 Qb4 Ra5 Qa4 Rg1 Bd2 e3 Be1 Be2 f1Q Nf8 f2 Bd3 f3 B5e4 Qe2 Rh1 f1N Rg1 f2 Rh1 Nb6 Nbd7 Qh5 b8Q Nh2 Kb7 f1N Nd2 Ng4 Qc4 Beg3 Qf4 Bh2 Nb8 Nd7 Rg1 Nef6 Ka7 Ne8 Bd5 Ng3 Qf1 Ne4 Be2 N4d6 Be4 Nb7 Qb1 Nac7 Re1 Na6 Nf1 Bg1 Qbb3 Ra2 Rc1 Rd2 Qbd3 Rc2 Qd1
5QN1/2r2P2/1n1B2q1/qk1r4/n2nPqR1/3PnRn1/K1bBRb1N/3Q2n1 b - - 0 1 legal: proof: h4 g5 a4 gxh4 Na3 d5 Nb1 b5 axb5 d4 Ra5 d3 cxd3 Na6 Ra1 Nb8 Na3 f5 Nb1 e5 Qc2 e4 Kd1 e3 Qb3 exd2 Kc2 Na6 Kc3 Be6 Qd1 Nb8 Kc2 Bc8 e3 f4 Be2 f3 Ra2 fxe2 Ra6 Be6 Ra1 Bc8 Kb3 Kd7 g4 e1N f4 c5 g5 h5 g6 a5 e4 h3 b6 Kc6 f5 a4+ Ka2 h4 b4 c4 f6 a3 f7 c3 b7 c2 g7 h2 Qh5 d1N Qe2 h3 Kb3 a2 Bh6 c1Q Qb2 Na6 b8Q Bd7 Nc3 Nc5+ Kc4 Qf4 Rb1 a1N Qg2 Ra5 Na2 Nf6 g8R Na4 Nc3 Nd5 Rg5 Nac2 Kb3 Nd4+ Ka2 N1e3 Qg4 Nef3 Re1 Ndb6 Nd5 Kb5 Nf6+ Bc5 Re2 Qdc7 Qh5 Rc8 Rg4 Qa7 Bg5 Rc7 Ng8 Qa8 Qd8 Qc6 Qf8 Qg6 Qh4 Be8 Qe1 Bc6 Qd1 Bd5+ Kb1 Bb3 Ka1 Bc2 Ka2 Be7 Bh6 Bh4 Bg5 Bf2 Bh6 Ka6 Bg5 Rd5 b5+ Ka5 Bh6 Nd7 b6 Kb5 b7 Ndb6 b8B Rcd7 Rd2 Rc7 Ne2 Ng1 Ng3 Ngf3 Re1 h1N Nf1 h2 Rde2 Ng3 Bg5 h1Q Nh2 Ng1 Rf1 Qhf3 Bh6 Qff5 Bg5 Q3f4 Bh6 Be1 Rf3 Bf2 Bg5 Re7 Bd6 Rc7 Bge7 Q5e5 Bb4 Qeg5 Bed6 Qd8 Ba5 Qa8 Be1 Qa5 Bd2
1Q1BrR1r/1rbR2r1/B2PbP2/qB3N2/3q2n1/1r5b/P1K1nb2/3NQ1k1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 d4 d5 h4 gxh4 cxd5 c5 Rh3 cxd4 Rh2 Nd7 Rh1 Nb8 Kd2 Kd7 f4 Kd6 g4 Kc5 f6 b5 f7 e5 f5 h5 g5 d3 g6 Kd4 f6 b3 g7 b4 Rh2 b2 Rf2 h3 Qa4 h4 Rf3 e4 Bg2 e3+ Kd1 e2+ Kd2 e1B+ Kd1 h2 Bg5 h1R Rf2 d2 Kc2 h3 Na3 b1R Qb3 h2 Be4 Qa5 Rg2 Nc6 Bf4 Bd6 f8Q Bf2 Rg4 Nh6 g8B Bc7 Qg3 Be6 Rg5 Ng4 Qb8 Rb3 Nh3 Rg1 Rd1 h1B Bd3 Bg2 Ba6 Ke4 Qh4 Kf3 Nc4 Bf1 Bf7 Kg2 Nd6 Kh1 Rg8 Bg2 Qb7 Re8 Rf8 Bf1 Qb8 Rg2 Ng5+ Kg1 Nge4 Rgg3 Nc3 Rg2 Na4 Rgg3 Nb2 Nd4+ Kb1 Rg2 Nf5 Ne2 Bd6 Rgg3 Be7 Rg2 Bd8 Rgg3 Rc1 d1Q d6 Qd4 Rc6 Bh3 Kc2 Nh2 Rb6 Rg7 Nd1 Ng4 Bg8 Rd3 Rb7 b3+ Kb1 b2 Kc2 b1R Bf7 Bd7 Bfc4 Be6 Bcb5 Rdb3 Ra7 Bb6 Rd7 Bc7 Bc4 Rb7 Bcb5 Rb3 Qg3+ Kf1 Qc3 Kg1 Qe1+
5R1K/4r3/k1n1N2n/1qn1QP1b/3PBrn1/P1RqB2N/2b1Q1rb/B3r3 b - - 0 1 legal: proof: e4 d5 b4 a5 c3 d4 cxd4 axb4 h4 f5 exf5 g5 d3 gxh4 Kd2 c5 Ke2 c4 Ke1 cxd3 Kd2 Kd7 Ke3 Kc7 Kf4 Kb6 Kg5 e5+ f6 h5 Kg6 d2 f4 b3 g4 h3 a3 h4 f7 e4 g5 h2 Bh3 e3 Qc2 d1N Qb2 e2 Be6 e1R Bd2 h3 Qc1 b2 Bb4 Rh4 Ba5+ Ka6 Ba2 b5 Bd2 b4 Bb3 Ne3 Nc3 b1B+ Bc2 b3 Nce2 b2 Bb4 Qe8 Be4 Bc2 Bc3 b1Q Qd1 Bg4 f5 Ra7 Nf4 Nc6 Ne6 Nh6 Kh7 Bh5 g6 Neg4 g7 Bd6 g8Q Re7 Kh8 Qeb8 f8B Q8b5 Qg7 Q1b3 Bb2 Q3d3 Rb1 Re2 Qe5 Rg2 Rc1 Bc7 Ne2 Bb8 Re1 h1R N2f4 h2 Nh3 Rf1 Re2 h1N Ba1 Nhf2 Re3 Re1 Qe2 Bd6 Bg7 Bb8 Bf6 Bc7 Bg5 Bb8 Rf3 Bc7 Be3 Bb8 Bd5 Ne4 Rb1 Nc5 Be4 Nf6 Rg3 Rf4 Rg8 Bd6 Rb3 Nfg4 Rf8 Rf3 Qd5 Bh2 Qe5 Rf4 Rc3
5B1q/1b1r1Qn1/1bnn1P1N/3P1nR1/kn3KQ1/Nb1Rn1n1/3P3Q/1b4B1 b - - 0 1 legal: proof: e4 d5 h4 f5 c4 fxe4 cxd5 a5 a4 g5 Ba6 gxh4 Bb5+ Bd7 Bc6 Ra6 Bb5 Rb6 Bc6 Rb5 axb5 bxc6 b6 Bc8 Ke2 Kd7 Ke3 e5 f4 h5 g4 c5 b4 h3 b7 h4 f5 a4 g5 c4 f6 c5 g6 a3 g7 a2 b5 c3 b6 c2 Nf3 h2 Re1 h1B Nh2 c4 Qg4+ Kd6 Qf4 Kc5 Nf1 Kb5 Re2 c3 Rh2 h3 Qf3 Rh7 Rf2 h2 Qe2+ Ka4 Rf4 Nc6 b8B Bf3 b7 h1B Bc7 Nh6 g8Q Nf5+ Kf2 Rd7 b8Q Bc5+ Qe3 Bb7 Ba3 c1N Qg7 c2 Nh2 Nd6 Kg3 Qh8 Qh7 Nb3 Qe2 c1N Nf1 Bb6 Bb2 Nbd4 Rg4 e3 Qe7 e4 Rg5 Ne6 Nh2 Ng7 Qg2 e2 Qbf8 e1N Bc3 e3 Bd4 e2 Bb2 Ned3 Bb8 e1N Bd4 Ndb4 Qef7 Nec2 Bg1 Ne3 Ng4 Bd1 Kf4 Bb3 Qc8 Nef5 Qh2 Be4 Na3 Bb1 Nh6 Ne2+ Kf3 Ned4+ Kf4 Ng3 Ba7 N4f5 Qcg8 Bd8 Bac5 Bb6 Qc8 Be4 Rf1 a1N Rf3 Bb1 Rd3 Nac2 Qcg8 Nce3 Qc8 Ndc4 Be7 Ncd6 Bf8 Ne5 Qc4 Nc6 Qe4 Nh4 Qf3 Nhf5 Qg4
k2b1B2/4nb1N/3K1P2/2Qn2n1/n3r1Bn/1RNnb1r1/1PbP1b2/R2Q1N2 b - - 0 1 illegal: No proof kernel forced: bxDB
5K2/1bN2Q2/n1nnB2P/p3r3/1R1bPR2/5rq1/1N1b1P1n/BBrnQ2k b - - 0 1 legal: proof: g4 c5 d4 cxd4 e4 b5 b4 f5 Qd2 h5 gxh5 f4 Qe3 e6 a4 d3 axb5 fxe3 Ra6 e5 Rd6 Bb7 Rd5 Bc8 Rd4 exd4 c4 Kf7 h4 Kf6 c5 Ke5 h6 Kf4 b6 a5 b5 d5 h7 g5 c6 d2+ Ke2 d1R h5 g4 b7 g3 c7 g2 h6 Qd6 b6 Ne7 Rh3 Na6 b8R Bg7 b7 Re8 h8Q Nc6 Qg8 Re5 Bb2 Rc1 Kd3 e2 Nc3 e1B Ba1 Bd2 Nf3 g1N Ne1 Nf3 Nb5 Nh2 Rf3+ Kg4 Rf8 Qg6 Be2+ Kh3 Rf4 Bf6 Qf7 Qg3+ Nf3 Kg2 Bd1 Qg4 Ne1+ Kh1 Bc2 Qg1 Bb1 Qg3+ Ke2 Ra7 Nd3 Bh8 Nb2 Bf6 Ra8 Bg7 b8Q Bb7 Qbg8 Bf6 Rd8 Ra8 Rd6 Rf8 c8B Bh8 Be6 Bg7 Qe8 Rf7 Nc7 Rf6 Rg4 Rf3 Qef7 Bg5 Qgf8 Ref5 Nd1 d3+ Ke1 d2+ Ke2 d4 Nb2 Be3 Kd3 Bf6 Rf4 Bg5 Rh4 Re5 Rd5 Bgf4 Qb4 Bg5 Qc3 Bgf4 Kc4 d3 Rb5 Bd4 Na4 d1N Rb4 d2 Nb2 Ne3+ Kb3 d1N Qe1+ Qg1 Rg4 Nc2+ Kc4 Bd2 Rf4 Nce3+ Kb3 Rh5 Ka4 Nf5 Kb5 Nc3+ Kc4 Nd1+ Kd5 Rg5 Bc8 Rh5 Ke6 Nd6 Bd7 Re5+ Kf6 Ng4+ Kg7 Nh2+ Kf8 Re3 Qe2 Rf3 Be6 Qg3 Qe1+
k1r1r2q/q2b1r1P/pPNB1N2/7R/6n1/rnBQ1b1P/4n1Qr/2R2K1Q b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Bg2 b5 axb5 h5 Bf3 Be7 Bg4 Bh4 gxh4 hxg4 b4 f5 c4 d5 e4 Kd7 c5 Kc7 h5 Kb7 e5 g5 e6 d3 h3 g3 e7 a6 e8Q d4 h6 f3 b6 f2+ Kf1 g4 h7 f4 b5 d2 Qe7+ Nd7 Qd6 g2+ Ke2 f1R Qe1 d1R Qg3 Ngf6 Bd2 f3+ Kd3 f2 Ke2 Re8+ Qge5 g3 Nc3 Ng4 Ra5 Ra1 Nd5 Ra3 Nf3 g1Q Nf6 g2 Bc3 Rfa1 Qe3 f1R Ne5 R1a2+ Qd2 Rb8 c6+ Ka8 c7 Nc5 Qc2 Bd7 c8Q Nb3 Qcc7 Rc8 b7+ Ka7 b8B+ Ka8 Qc4 Rf5 Qd3 Rf3 Nd5 Rf7 Nf6 Rb2 Qd1 Rba2 Qf1 d3+ Ke1 Qa7 b6 g1N Qcg2+ Qb7 Rb5 Ne2 Nc6 Qa7 Rh5 Rb2 Qff3 d2+ Kf1 d1B Qdd3 Rd2 Nd5 Qf6 Bd6 Qh8 Nf6 Nec1 Qfg3 Bf3 Rg1 Rda2 Qh1 Rh2 Qgg2 Ne5 Kf2 Ne2 Rc1 Ng4+ Kf1
4qQ1K/Q1NP1bP1/3n3b/B1qp3R/6Rb/5bB1/kn2NPb1/1r3Nnr b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 d4 Bb7 d5 Ba6 c4 Bc8 c5 Bh6 c6 Bg7 Bc4 dxc6 d6 Bf8 Bd5 cxd5 Kd2 Kd7 Kd3 e5 g4 a5 b4 h5 f6 c5 f7 a4 b6 Kc6 b7 Kb5 g5 h3 g6 e4+ Ke3 Kc4 Kf4 e3 Ke5 a3 b5 h4 b6 e2 Qd2 Kb3 Nc3 e1N Qe3 a2 Qg3 h2 Qf4 h3 Qe4 c4 Qf5 Ne7 Kf6 Nbc6 b8N Nf3 b7 Na5 Bf4 Bh6 f8Q Be6 g7 Qe8 d7 Bf7 Qg6 Nf5 Na6 Nd6 Nb4 Rb8 Rd1 a1B Ne2 Ng1 Rd4 Ka3 Ne4 c3 Qg5 c2 Na6 c1Q Bd2 Ka2 Qe3 Nac4 N4g3 Nb2 Nc7 Qc5 Rh4 Nf3 Rg1 h1B Rh5 h2 Nf1 Bg2 Ba5 h1B Qd4 Bh3 Rg2 Ng1 Rg4 Bf3 Qe3 Bhg2 Qd4 Ra8 b8B Ra7 Qe3 Rb7 Qd4 Rb4 Qe3 Rc4 Qd4 Rc1 Qe3 Rb1 Qd4 Qa3 Qa7 Qc5 Nfg3 Nf5 Na8 Be3 Rhg5 Rh1 Rh5 Bh6 Nf1 Nd1+ Be5 Bd4 Nc7 Bde3 Bg3 Nb2 Nh2 Nd6 Nf1 Be6 Qf7 Bd4+ Kg6 Bf6 Kh7 Bh4 Qf8 Bf7 Kh8
bqq3r1/PQ2N1B1/r1b3B1/6Pn/1q2Rpbn/1QRR4/P4b2/1bk2K1N b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 c5 d4 cxd4 Kd2 e5 Ke1 exf4 c4 Ke7 e4 Kf6 g4 Ke5 c5 d5 c6 h5 g5 b5 c7 f5 a6 f3 Qe2 f2+ Kd2 Kf4 e5 b4 e6 h3 e7 h4 e8Q d3 Qf7 h2 Qd1 d4 Bb2 h3 Be2 f1Q Bc3 b3 Nf3 b2 Qe1 Nf6 Qg6 Bc5 Bb4 Nc6 Rg1 h1B Ba5 h2 Qh5 Qh3 Na3 b1B Qc1 Rg8 Rd1 Ne5 Qc2 Ng6 Ke1 Ke3 Nb5 f4 Qb3 Bg4 c8R Nh4 Qh7 Nh5 Ne5 Bc6 Bc3 h1B Na7 Bhf3 Rc7 Qb8 Nc8 Qg3+ Kf1 d2 Re1 d1Q Nd3 Qc2 Nf2 d3 Ne7 d2 Nh1 d1Q Bg7+ Kd2 Bd3 Kc1 Bg6 Bf2 Rd7 Bfe4 Rd4 Qgc3 Ra4 Kd2 Rc4 Qdf3 Re3 Kc1 Rd3 Bed5 Re4 Qcb4 Rc4 Qe3 Re4 Qcc3 Rc4 Qe6 a7 Qec8 Re4 Rd8 Rc4 Rd6 Qa3+ Kc2 Rd1+ Qf5 Qa6 Ba4 Rc5 Q8b5+ Rc4 Rg8 Be8 Qb8 Qg6 Ba8 Qb7 Ra6 Qf6 Qfc8 Qfb6 Qbc5 Rd3 Bc6 Bg6 Qcd6 Qb4 Qc5 Qa3 Qb4 Qa4+ Kb2 Qd1 Bc2 Re4 Qf6 Rc1 Bb1 Rcc4 Qc3 Qb3+ Kc1 Rcxc3+
5Bbn/qB3nRp/N4K1b/1Q3nPq/3r4/P7/rB1r2Pn/3RkqQN b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 Kd2 Kf7 c4 Kg6 f4 Kf5 c5 d5 c6 e5 c7 b5 Qe1 Kg4 f5 b3 f6 d3 Kc3 d2 f7 d1N+ Kd2 b2 Bd3 b4 Nh3 d4 Bf1 d3 Nf4 b3 Rh5 Nc6 Rh6 Qe7 Rf6 Nd8 Ra6 Bh6 f8B Ne3 Kc3 d2 Ne2 d1Q Qf2 Nf5 Nd2 b1R Ra7 b2 Nc4 e3 Qg1 e4 Nd4 Kg3 Ra4 e2 Rb4 e1N Rb8 e3 Nd6 e2 Rb7 Nf3 Kc4 e1Q Kd5 Nf7 Be3 Nh2 Bc1 Qe1e2 Ne8 Qh5 Ba6 Be6+ Ke4 Qa3 c8Q Nge7 Qc5 Ng6 Qb5 Qc5 Rc7 Qa7 Bb7 Rg8 Re7 Ngh8 Nc7 Rd8 a3 Ba2 Nde6 Rd2 Nc5 Rg6 Rd7 Rgd6 Nd3 Bb3 Nf2 R6d3 Ra2 Ra1 Na6 b1Q Bb2 Qf1 Re7 Qbd1 Rc7 N7d6+ Ke5 Rd4 Kf6 Bg8 Rg7 Ndf7 Qe2 Rc1 Ra1 Rcc2 Bc3 Ra2 Qb5 Kf4 Bb2 Ke3 Qb6 Ke2 Nh1 Ke1 Qa5 Rd7 Qb5 R7d4 Rxd1+
rB6/5P2/N3QN2/1nB1K1R1/2N1n3/kbPpr1r1/3b1nP1/q2nQqRb b - - 0 1 illegal: No possible last move
qB1R4/bn1npQ2/b5Nq/Rr4Q1/1qPr1nK1/PB6/nB2P1k1/1Nb5 b - - 0 1 legal: proof: f4 f5 d4 h5 g4 c5 gxh5 cxd4 b4 a5 h6 axb4 Nh3 g5 Ng1 g4 Bd2 Qc7 Be3 Qxf4 Bc1 Qc7 Bg5 f4 Bxf4 Qa5 Bc1 Qd8 Kf2 Kf7 Kg3 Ke6 c4 Kf5 h4 b5 h7 d5 h5 b3 a3 b4 h6 b2 Qd2 b3 Qe1 d3 Qd1 d4 Rh2 d2 Rh4 d3 Nc3 b1Q Qc2 d1Q Bb2 Nc6 Bc1 b2 Be3 Qdc1 Nb5 Ra5 Qd1 d2 Bh3 Nf6 Bb6 Ba6 Qb3 d1N Nc7 Nc3 Nf3 Na2 Ne5 Qa8 Ba7 Nd7 Nd5 Rb5 Bb8 Nd8 Ng6 Nb7 Rh5+ Ke4 Nc3+ Ke3 Kh4 g3 Bf5 Kf2 Bc2 g2 Kg4 g1B Rg5 Rg8 h8B Kg2 h7 Bh6 Qa4 Bf2 Qa5 Rd8 Bb3 Ba7 Bf6 Qh1 h8Q Qbe1 Qe8 b1N Rf5 Bc1 Qf7 Qh6 Rg5 Qd2 Bg7 Qd6 Rf5 Qb4 Rh5 Nd2 Nb1 Nf1 Bb2 Ng3 Rf5 Nh5 Re5 Qc5 Qd2 Qb4 Qg5 Nf4 Rd5 Rb6 Ra5 Rb5 Nc3 Bce3 Rd1 Bc1 Nb1 Ndc5 Qgf6 Rd4 Qg5 Nd7 Rh1 Qf8 Rh8 Qh6 Rd8
2q1RN2/1B1Pb2b/1p2P3/3BR1B1/n2P1br1/kQQ3q1/N1r5/1qb2nnK b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 Kg2 Kd6 h4 Kc5 a4 g5 e4 f5 d3 b3 d4+ Kb4 h5 c5 d6 c4 h6 b6 e5 c3 a5 f3+ Kh2 g3+ Kh3 c2 h7 g2 Kh2 b2 a6 g4 a7 g3+ Kh3 f2 Qf3 f4+ Qg4 f3 Nc3 b1Q Qd7 Be7 Ra5 Nh6 Bb2 c1B Ra2 Nf7 Bd3 f1Q Nge2 f2 Bc4 Qd1 Ra5 f1N Qe6 g1Q Bd5 g2 Nf4 Qb3 Ng6 Nd7 Nf8 Rg8 h8Q Nc5 d7 Bb7 Rh2 Rc8 a8B Rg4 Rh1 Ba6 Bab7 Bd3 Qh4 Na4 Qe1 Bf4 Bc1 Bh7 Be3 Qc7 Na2+ Ka3 Qc3 Qf2 Qec6 g1B e6 Ne5 Q6c4 Nf3 Ra8 Qc6 Rh2 Qfe1 Re2 Rc7 Bd2 Bge3 Re8 Qf2 Ba6 Qa8 Bab7 Qc8 Re1 Bfg5 Re2 Bef4 Re5 Rc6 Be1 Bc1 Bd2 Bf4 Be3 Bh2 Bg5 Bhf4 Qe1 Qfe3 Qg3 Qec3 Kg2 Ng1 Kh1 Qe3 Qe2 Rc2 Qc4 Qf2 Qgc3 Qg3 Q4xb3+
2k4K/BBP1R1R1/Pn4N1/2n1p2P/2Q2qnQ/2bbq3/1Nr2r1B/b1q2b2 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 e4 axb4 exf5 g5 fxg5 h5 Be3 hxg4 Bf4 Ra6 Bc1 Ra8 Ke2 d5 Kd3 Kd7 h4 e5 a4 b5 c4 g3 c5 b3 h5 b2 f6 g2 a5 b4 a6 b3 f7 Ne7 g6 Qb6 Nc3 b1Q+ Qc2 b2 Bh6 Qc1 g7 b1B g8Q Qf4 Nh3 g1B c6+ Kc7 Ra5 Nd7 Rb5 Nc5+ Ke2 Be3 Qg5 d3+ Ke1 d2+ Ke2 d1N Na4 d4 Nb2 Rb8 Rg1 Nf2 Qc4 Nd5 Qh4 Ng4 Bg2 Be6 Bg5 Kc8 c7 Be7 f8B Bd7 Rb3 Bb5 Rd3 Bd6 Bfh6 Rf8 Be7 Qa7 Bh1 Nb6 Bb7+ Kd7 Rd2 d3+ Ke1 Nb3 Ng5 Rbd8 Qc3 Qf2+ Kd1 Nf6 Qhd4 Nc4 Nh7 Nc1 Na4 Nb3 Qh4 Bd4 Bf4 Bb4 Bh2 Qf5 Rdg2 d2 Ke2 Qg5 Qc1 Ba1 Bc5 d1Q+ Kf2 Qe1+ Kf3 Bg6 Qcf4 Bbc3 Nb2 Qc1 Be3 Qc5 Rf2 Qb4 Ba7 Nb6 Rfg2 Bf1 Rg4 Qc5 Qc4 Qgd2 Rf4 Bb1 Rg8 Ng4 Rf7+ Ke8 Rg6 Qg1 Rg8 Nc5 Rg5 Bf5 Rd7 Rf7 Nf8 Rf6 Rg6 Qh6 Rh7 Rd2 Rg8 Rf7 Ng6+ Kd7 Re8 Rc2 Re7+ Kd6 Qh3 Qd4 Kg3 Be4 Kh4 Qhe3 Qg3 Rf4 Kg5 Bed3 Qh4 Rf6+ Nf4 Rf5+ Kg6 Rf8+ Kg7 Rf5 Ng2 Rff2 Nf4 Qde4 Ng6 Q4f4 Re6+ Kd7 Kh8+ Qf7 Bf3 Kc8 Re7 Qf5 Rhg7 Qff4 Bb7+
2K1b1n1/1R1r1N2/r2RQ1n1/7k/r1bp1bPB/1R1Qr2B/1PNP1n1n/q7 b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 b5 axb6 Na6 Kf2 Nb4 Qa4 Na2 Qd1 Qg5 Ke1 Qb5 cxb5 Nxc1 Kf2 f5 Kf3 Kf7 e4 Kg6 e5 h5 e6 a5 b7 c5 b8R d5 e7 h3 b6 c4 b7 h4 Be2 a4 Rh2 a3 Qc2 c3 Qd3 d4 Qb5 a2 Na3 c2 Bd1 Nd3 Be2 c1Q Qa4 Bh6 Rb1 a1R Qa7 Bd7 Rc8 Be8 b8B Kh5 Qb7 Ra6 Rc7 Rh7 Nc2 R1a4 Qb5 Qe1 Rh1 h2 Rc1 h3 Rb7 Qd1 Ra1 Qe1 Ra3 Qa1 Rb3 Ne5+ Kf2+ f3 Kg3 Be3 Qd3 Ng6 Be5 Bh6 Bf6 Rg7 Bh4 Rf7 Bf1 f2 Nf3 Be3 Ng5 f4+ Kf3 Rg7 Ke4 f3 Kf5 Bf4 Be2 f1N Nf7 Rh7 Rg1 h1N Bd1 Nf2 Rh1 h2 Be2 Bc6 e8Q Rg7 Qe6 Be8 Rg1 h1R Bd1 Nh2 Re1 Bc6 Re5 Bb5 Rd5 Re1 Rd6 Re3 Be2 Nfg4 Bd1 f2 Bf3 f1B Bc6 Rh7 Bd7 Nf2 Bc8 Be8 Bd7 Nh6+ Kf6 Ne5 Ke7 Ng8+ Kd8 Ng6 Kc8 Rg7 Qec4 Rh7 Bh3 Be2 Qe6 Bf1 Qc3 Bc4 Qd3 Rg7 Ng5 Re7 Nf7 Rd7 g4+
q1r2B1r/5r2/2n1N3/P1Q2knQ/2P1NpbR/2P2b2/2nNnK1B/R3rb2 b - - 0 1 legal: proof: g4 f5 b4 e5 f4 c5 g5 a5 d3 axb4 Bh3 c4 dxc4 Be7 Bg4 exf4 Be3 h5 Bc1 Bf6 gxf6 hxg4 Be3 f3 h4 Kf7 a4 Ke6 c3 b5 f7 g5 f8Q d5 h5 b3 a5 b2 Bf4 g3 e4 g2 e5 b4 Rh3 g4 Ra2 b3 Qd3 d4 Qc2 d3 Qg7 f2+ Kd2 g3 Ke3 d2 Ra3 d1B Qa7 Nh6 Qd4 Nc6 Qce4 Nf7 Qf3 Ng5 Ne2 g1R Rh4 g2 Ra1 Re1 Qc5 f1B Kf2 g1N Ng3 Qf8 Nd2 b1R Nge4 b2 Qg4 Bf3 Bg3 Ne2 Bh2 Rh7 h6 Raa7 Ra3 Raf7 Qh5 Bd7 Ra1 Qa8 Qb6 f4 Qb5 Rh8 h7 Kf5 Qb6 Bc8 e6 Ke5 e7 Bcg4 e8N Ke6 Nc7+ Kf5 Ne6 Rbd1 Nb3 Rdd8 Nbd2 b1N Qb4 Rc8 Qf8 Rg8 h8B Na3 Bg7 Rh8 Qb4 Nc2 Bf8 Bgh3 Qb6 Bhg4 Qc5+
2n2bQ1/1QrP4/1n2k3/B1r3pq/1nNPn2N/1B4Rr/rB3P1R/2bb2K1 b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 c4 d5 cxd5 f5 e4 b5 axb5 axb4 Ra6 fxe4 Ra5 Be6 Ra1 Bc8 h4 Kf7 d4 c5 d6 g5 b6 e5 h5 e3 b7 e2 h6 e4 h7 b3 Be3 c4 Na3 b2 Qb1 g3 Bh3 c3 Bf1 g2 Bc1 c2 Rh3 Bg4 Nc4 Qe8 Nd2 Ne7 Rha3 Nc8 Rd3 Ra2 Re3 Nd7 b8B Ke6 Ngf3 g1R Nh4 Rg3 Rf3 Rh3 Bg2 Qh5 Rf5 Rg8 h8Q Rg7 Bf3 Rf7 Nc4 Re7 Kd2 e1N Ke2 Nd3 Kf1 Rf7 Qg8 e3 Nd2 N3c5 Bc7 Ne4 Ba5 e2+ Kg2 e1R Bd1 Ree3 Rf3 Rc3 Rg3 Rc5 Nc4 Be2 Bcd2 Bg4 Bdc3 Be2 Qc1 b1N Qb2 Na3 Qb7 Ndb6 Bb2 Bg4 Qh8 Rfc7 d7 c1B Bc2 Bd2 Rh1 Bd1 Rh2 Bc1 Bb3 Nc2 Kg1 Nb4 Qg8+
KN2n2R/Q3RrnP/n6r/1Pr2Bb1/1b1k2N1/1Q1B3n/r1PqNp2/4q3 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ra2 h6 Ra5 Bb7 Ke1 Be4 Bg5 f4 Ra1 Bf5 gxf5 hxg5 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 h4 a5 f6 d5+ Ke5 g4 e4 g5 b6 f2 f7 d3 b3 d4 b7 d2 h5 g3 h6 g4 Ke6 d3 e5 a4 b4+ Kd4 b5 g2 Na3 f3 Qe1 d1Q Rh2 g3 Rc1 d2 Rh5 Bb4 f8Q Nf6 Rb1 Ne8 Rc1 Na6 Bd3 f1R Qg7 Rc8 b8N Rc5 Nc4 a3 Qa7 a2 Ne3 a1R Ng4 Ra2 Rh1 Qg5 Kd7 Qe3 Qf2 Qe1 e6 d1N e7 Rh7 Qe2 Q3d2 Qe6 Ne3 Qb3 Nf5 Rd1 Nfg7 Bf5 Nec7 Kc8 Nce8+ Kb7 Rf2 Ka8 Rf1 Nh3 g1B Nf4 g2 Rb1 Be3 Rh3 Qg3 Re1 g1N Rh4 Nh3 Re2 Nf6 e8B Qge1 Beg6 Nfe8 Bd3 f2 Bge4 Rh1 Bf5 Qdd1 Rh5 Bed2 Re7 Be3 Rg5 Qdd2 Rg6 Rh2 Rf6 Rh1 Rf8 Rh2 Rh8 Rh1 Ng6 Bg5 Nf4 Ne6 Rf8 Ng1 Nh3 Rf7 h7 N6g7 Nf4 Rh6 Rh8 Nh3 Ne2+
1N2n1kN/2Pq2n1/3P1nb1/1Qb2BKR/4b3/Br3P1q/1pq2b1R/1bQQ4 b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 d4 d5 c4 Na6 cxd5 Nb8 Be3 c5 Qc2 b5 Bc1 c4 Qd1 Ra6 Na3 Rc6 Nb1 Rc5 dxc5 Bh3 Qa4 Bf5 Qd1 Bc8 Kd2 Kf7 Ke3 h5 Kf4 e5+ Ke3 c3 a4 b3 g4 b4 g5 c2 c6 b2 c7 b3 a5 h3 a6 h4 a7 h2 a8Q h3 Qc6 Nf6 g6+ Kg8 g7 Bf5 Be2 Nbd7 Ra5 Bg6 Qa4 Bc5+ Qdd4 Ne8 d6 Ndf6 Bg4 Qd7 Nc3 b1B Qa1 b2 Bd2 c1Q Na4 Qc2 Ne2 Rh5 Nb6 Rg5 Re1 h1N Bb4 h2 Nf4 Ng3 Rh1 Ngh5 Bf5 Rg1 Ba3 Rc1 Rg1 h1B Rg2 Rg1 Rh2 Bf3 Nh3 Rg3 Ng5 Rh3 Nf7 Rg3 Qa2 Rh3 Qc4 Rg3 Qe2 Rh3 Qd2 Bg2+ Ke2 Rb3 Nh8 e3 Qd3 Ba8 f3 e4 Qb5 Bb7 Nc8 Bc6 Na7 Bb7 Nc6 Ba8 Kf1 e2+ Kg2 e1B Kh3 e3 Qc1 e2 Nb8 Bef2 Qd1 e1Q Qc1 Nh7 Kg4 N7f6+ Kg5 Qf1 Ra4 Qe6 Rah4 Qh3 Qd1 Qd7 Qc1 Ng3 Rh5 Be4 Kf4 Bf7 Rg5 Bh5 Ng6 Kh7 g8Q+ Kh6 Qgc4 Kh7 Nh8+ Bg6 Qe2 Kg8 Qed1 Ngh5+ Ke5 Nhg7 Kf4 Qc3 Rh5 Qc2 Kg5
3q2r1/nPb2Rq1/2B2rNk/3r2pr/PPnRKQ2/4n2Q/1n6/2NN1qB1 b - - 0 1 legal: proof: c4 b5 g4 a5 f4 h5 b4 hxg4 f5 a4 Qb3 axb3 f6 c5 d3 exf6 Bb2 f5 Bc1 f4 Bh3 Bb7 Bf1 Bd5 cxb5 c4 Kd1 c3 Ke1 Bc4 dxc4 Bd6 Na3 Bc5 Nb1 Bf8 Kf2 f5 h4 Kf7 a4 Kg6 e4 d5 b6 d4 b7 d3 c5 d2 c6 d1N+ Ke2 c2 e5 f3+ Ke1 f4 h5+ Kh6 e6 g3 e7 f2+ Ke2 b2 Kf3 g2 e8Q Ne7 c7 Nd5 c8N Bd6 Ba6 f1R+ Ke4 N5e3 Rh4 f3 Nc3 b1N Qf8 f2 Nge2 g1Q Ne7 Nb2 Ng6 Bc7 Nd1 Na3 Bb5 Nac4 Bc6 Ra5 Rg4 Rg8 Qf4+ Rg5 Bd2 c1R Ra2 Rc3 Nc1 Rd3 Bc3 Rd5 Bd4 Re1 Ra3 f1Q Rd3 Re2 Bb6 Rd2 Rd4 Rf2 Rg3 Qgg2+ Rf3 Qgg1 Qh4 Qg3 Rf7 Rf6 Qf4 Qg4 Bb5 Nc6 Bc5 Na7 Bc6 Kh7 h6 Rh5 Rd3 Ng2 Bg1 Nge3 Rd4 Qgd7 Nh4 Kh8 h7 g5 Rf8 Kg7 Ng6 Kh6 h8Q+ Qh7 Rf7 Rff5 Qf6 Qg7 Qe6 Rf6 Qh3
1nR4k/1P1b2Pn/2nq2q1/1nr1B2b/5NbR/2N1p3/P2Nq1BK/1bQ4Q b - - 0 1 illegal: No possible last move
6n1/2NPrQRN/Kpnnr3/nR3q1n/2N4q/2P2Qr1/1BP2q2/2k2n1B b - - 0 1 illegal: No proof kernel
1n3B2/1NbB1b2/q1Qp1Pn1/n2bqqP1/K4Nb1/1Q2n1k1/3B1RP1/2b3R1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 bxa4 d4 cxd4 Bd3 g5 Kd2 gxf4 Ke1 f5 Bf1 f3 h4 h5 Qe2 a5 Qd2 f4 Qd1 Ra6 Kd2 Rf6 Ke1 Rf5 exf5 Rh6 Ne2 Rg6 Ng1 Rg5 hxg5 Qb6 Be2 Qc7 Bf1 Qd8 Kd2 Kf7 b4 e5 c4 f2 Kc2 h4 b5 h3 f6 Kg6 c5 Kf5 b6 f3 c6 Kg4 c7 e4 b7 d3+ Kc3 e3 Qb3 e2 Na3 e1Q+ Bd2 h2 Ra2 Ne7 Nc4 a3 Qb4 a4 Ne2 Ng6 Ng3 Bd6 Be2 f1N Rb2 a2 Rb1 a1B+ Rb2 a3 Kb3 a2 Ne4 Ne3 Bf1 f2 Bc3 d2 Qa3 d1B+ Rc2 Bf3 Rd2 Bb2 Ng3 a1N+ Ka4 Bc1 Na5 Nb3 Ra2 Bd5 Ba6 f1B Nh5 Bfc4 Rg1 h1Q Nf4 Qh7 Bb5 Kg3 Rf2 Qh3 Qb4 Qf5 Bd2 Qe2 Bc6 Qe7 Qa3 Qee5 Qa2 Na6 b8B Bf7 Ba7 Bcd5 Bc5 Nb8 Nb7 Na5 Qb3 Qa6 Ba3 Bc5 Bab4 Bb6 Bf8 d6 Bb5 Bce6 c8Q Bc7 Bd7 Bf3 Qd8 Bg4 Qe8 Bd5 Qc8 Bd8 Qcc3 Bc7 Qc6
4RqN1/1qnn3N/qp1r1N1B/1P1BQ3/1R3b1P/3pP1r1/b2k1n1r/3Q1K2 b - - 0 1 legal: proof: f4 c5 g4 e5 d4 exf4 a4 h5 gxh5 cxd4 a5 b5 axb6 axb6 c4 Ke7 b4 Kd6 c5+ Kd5 h3 Kc4 e3+ d3 h6 f5 c6 d5 c7 g5 h7 f3 Nd2+ Kc3 Ra2 d4 Ra1 f4 Qa4 f2+ Kd1 g4 Qa2 g3 Qa6 f3 Qb5 g2 Qh5 Bd6 Ra5 Na6 Rb5 Bf4 Ba3 Be6 c8N Qf8 Ne7 Nf6 Ng8 Nc7 h4 Nd7 Re5 Ba2 Nh3 g1R Re8 Rg3 Bg2 Ra7 Re1 f1Q Ng5 f2 Bd5 Qh1 b5 f1Q Be7 Ra3 Qe2 Rb3 Bf6 Rb2 Bg7 Qa3 Qh5 Qa6 Bh6 Qf2 Rg1 Qff3+ Ke1 Rc2 Nf1 Rh2 Nd2 Kc2 Nde4 Kc1 Nf2 d2+ Kf1 d1N Qg4 d3 Qh5 Qg4 Nfe4 Nf2 Nef6 Qf5 Qg4 Kd2 Qd1+ Kc3 Be6 Qhb7 Bd5 Rf3 Rg4 Rg3 Nh5 Qf8 Nhf6 Bd6 Rb4 Bf4 Ne7 Rg8 h8Q Rg7 Neg8 Rg6 Qf3 Kd2 Ngh7 Rg7 Qh1 Re7 Qg7 Re6 Qg5 Rd6 Qe5 Rg5 Qf3 Rg3 Qd1+
N3Qrr1/1K2R2p/2B2P1Q/1n2PQ2/4Pbnq/1q1np1B1/2bRkq2/N2b4 b - - 0 1 illegal: No possible last move
2k2R2/1nRNr1nq/2Pb1PPp/4r3/1QnB4/7b/1BN2pnQ/nQ2bK2 b - - 0 1 illegal: No possible last move
1b6/PbBN2P1/N6q/kn1r4/1R1npQBr/rr1b1BPp/2nQ1K2/3R4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 Ra5 Rh5 Ra3 Rh1 Ra8 e4 e5 d4 exd4 e5 f6 Qd3 f5 Qe4 fxe4 f4 Kd7 a4 c5 d6 Kc6 f5 Kb6 e6 h5 g3 h4 g6 d3 e7 c4 e8B h3 d7 b3 f6 c3 f7 d2+ Ke2 d1R g7 c2 Ba3 c1R Ke3 b2 Rh2 Qf6 Rg2 Ka5 Nc3 b1B Bb2 b5 Be2 b4 Nb5 b3 Bf3 Nh6 Nc7 Nf5+ Kf2 Bd6 f8Q Qh6 d8Q Bd3 Beh5 Ne3 Be5 b2 Bhg4 b1N Qf4 Rc3 Na6+ Bc7 Qdg5 Na3 Rb1 Ra7 Rb4 Nc6 Rh2 Rh7 Rh1 Nec2 Qd2 Bb8 Qgf4 Rb7 Bc7+ Rb6 Ne2 Nb5 Nd4 Rh8 Ne6 Bb7 Nf8 Ra3 Nd7 N6d4 Rg1 Qe6 Re1 Rh4 Rf1 Qh6 Rh1 Rb1 Rd1 Rbb3 Nac5 Ba8 Ne6 Ka6 a5 Bb7 Nec5+ Ka7 a6 Rd6 Ne5 Rd8 Bd6 Kb6 a7 Ka5 Na6 Rc8 Nd7 Rc5 Be5 Rd5 Bc7+
5r2/Q3n3/N1nq1nk1/P4Rpn/1P2R3/B1B2RQ1/1bpP1Nr1/2nqbK2 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 Bc4 hxg4 Bf1 b3 Na3 b2 Nb1 d5 Bc4 b5 Ke2 b4 Qe1 b3 Qd1 Be6 Na3 b1N Kf1 b2 Ke2 dxc4 Kf1 Bd7 Ke2 Ba4 Ke1 Bb3 cxb3 Qd4 Ke2 Qd7 Ke1 Qd8 f4 Kf7 h4 g5 b4 e5 h5 c5 h6 c3 h7 c4 f6 c2 f5 c3 Rh6 e4 Nb5 g3 a4 e3 a5 g2 Nc7 e2 Ra3 Qd6 Rb3 Bg7 Rh4 Nc6 Nh3 g1N Na6 Rf8 Nf2 Nge7 Re4 Nh3 Ra3 Nf4 Rb3 Rhg8 h8B Nh5 Ra3 Re8 Rb3 Rgf8 Ra3 Kg8 f7+ Kh7 Rb3 Be5 f6 Kg6 Bg7 Na3 Bh8 b1Q Bg7 Nb5 Ba3 c1N Qc2 Qe6 Qd3 c2 Qg3 Nc7 Rf3 Bb2 Bh8 Ncd5 Rf5 Rg8 f8Q Qd6 f7 Ndf6 Bg7 Rh8 Rf3 Ra8 Qb8 Rh6 Qa7 Rf8 Nd1 Rhh8 Kf2 e1B+ Kf1 Nd3 Nf2 Qd1 Rf5 Nc1 Rf3 Rh7 Bh8 Nf4 Bg7 Rh2 Bh8 N4h5 Bg7 Rh8 f8R Rg2 Rf7 Rf8 Bh8 Ne8 R7f5 Nef6 Bg7 Nfd5 Bd4 Ndf6 Bc3
Kn3Rk1/1BBq4/1NP4p/1qN3P1/br4rb/1pP2QQ1/1r1b1r2/1RNn4 b - - 0 1 legal: proof: h4 f5 e4 c5 exf5 a5 d4 g5 dxc5 gxh4 b4 axb4 a3 bxa3 Kd2 Kf7 Kd3 e5 Kc4 d5+ Kb5 e4 f4 e3 g4 a2 g5 e2 f6 e1B f5 d4 Nh3 d3 Bd2 h6 Na3 Qd7+ Kb6 Ra4 Nf4 h3 Be3 d2 Bf2 h2 Bd4 Bh4 Ne2 Rb4+ Ka7 b5+ Ka8 Ne7 Nc4 Kg8 Qe1 d1R Bg2 Rdb1 Be5 Nd5 Bc7 Nc3 Bb7 Nd1 Nc1 R1b2 Rf1 h1R Rb1 Rg1 Nb6 Rgg4 Qg3 Rh7 Rf4 Rf7 c3 Bd6 Rf3 Bf4 Rf1 Bd2 Rf2 Rf8 f7+ Kh7 f6 a1Q+ Na4 Qa2 Rf1 Qad5 Nb6 Rbe4 Rf5 b4 c6 b3 Rf2 Rb4 Rf3 Qb5 Rf2 Rd8 f8N+ Kg8 Ne6 Re8 Nc5 Re2 Rf4 Rf2 Rf5 Qh7 Rf4 Be6 Rf3 Qd7 Rf4 Bc4 f7+ Kg7 f8Q+ Kh7 Qd6 Kg8 Qf6 Qa4+ Na6 Bb5 Qf5 Qa5 Qe4 Ba4 Qef3 Qb5 Nc5 Qe7 Rf5 Qd7 Rf8+
rN2b3/3rQp2/4N2P/PnK3p1/brQ3Rr/2kqPn1Q/1bq2BB1/7R b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 h5 gxh5 d5 cxd5 c5 Qd3 cxd4 Qd2 Nf6 Qd1 Ng8 Kd2 Kd7 Kd3 Kd6 Kc4 Ke5 a4 b5+ Kd3 g5 h4 f3 h6 f2 h5 b3 d6 b2 h7 b4 Kc4 b3 d7 d3 a5 d2 Qe1 d1B Rh4 Nc6 Ra4 Na7 Rg4 Bg7 Nc3 b1Q Nb5 b2 Nh3 Ne7 Bg2 f1R Qb4 Ng6 Ra1 Nh4 Nf4 Nf3 Nc7 Nb5 Nfe6 Ba4 Kc5 Rd1 Qc4 Qc2 Na6 b1R Nb8 Rb4 Be3 Bb7 Bf2 Bc6 Rg3 Rd4 Rh1 Rh4 Rg4 Re8 Nf4 Re6 h8Q Rd6 h6 Rd4 Qf8 Ke4 Qe7+ Be5 Bg3 Ke3 Ne6 Kd2 e3 Rd6 Rf4 Bb2 Bf2 Qh8 d8Q Qhh7 Qdd7 Qhd3 Qc7 Be8 Rg4 Rd7 Qg3 Qcb3 Qd5 Kc3 Qh3 Qbc2 Qc4+
bq1Nk1BK/1q2rp1B/2Pn4/1b1Q1P2/1b1r1PBN/RQp2b2/r1n4R/8 b - - 0 1 legal: proof: f4 a5 b4 g5 c4 c5 e4 Qc7 h4 gxh4 Bb2 Qe5 Bc3 Qf5 exf5 axb4 d4 bxc3 dxc5 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 b5 Kf3 e5 Kg4 h5+ Kg5 d5 g4 d4 a4 b4 c6 h3 c5 h2 a5 e4 c7 d3 a6 e3 a7 h4 Nh3 b3 Qc2 b2 Qb3 d2 Be2 d1B Nd2 b1Q Ra3 Nc6 Nf3 Ba6 c8B Nb4 Bb7 Ne7 Kf6 Bb5 g5 Nc2 g6 Nc8 g7 Nd6 Nhg5 h3 Nh4 Qb2 Bh5 e2 g8B e1R Be4 Bf3 Bg6 Rh6 Bd3 Re7 Be2 Rd8 a8Q Rh8 Re1 h1B Qad5 h2 Ne6 Bhg2 Rg1 h1Q B6h7 Ra8 Rc1 Ra4 Nd8 Rd4 Rf1 Qb1 Rf2 Qb2 Qdc4 Ba8 Bg4 Bgf3 Rh2 Qhb1 Qbb4 Qb3 Qe6 Qd5 Qb3 Qb7 c6 Qb8 Bg6 Rh5 Qed5 Rg5 B4h5 Rg2 Bg4 Bf1 Qb2 Re3 Qa5 Rg1 Qc7 Nc8 Qa2 Q1b7 Qa5 Bb4 Kg7 Re7 Qc5 Nd6 Qb3 Bb5 Qcd5 Ra1 B6h7 Ra2 Kh8
3r3b/n4pQn/pN2qr2/Bkn2Q1R/4n3/R1PP1N2/2R2Pbb/1K2B2q b - - 0 1 legal: proof: a4 c5 h4 d5 b4 b5 bxc5 g5 axb5 gxh4 g3 d4 c3 d3 Qb3 Qa5 Bh3 Qd8 Kf1 dxe2+ Kg2 e1Q Bf5 Qd1 Bc2 Qg4 Bd1 Qxd1 g4 Kd7 b6 Kc6 d3 h5 g5 e5 g6 a6 g7 e4 b7 h3+ Kg3 h2 Kf4 e3 Ke4 e2 Qb2 e1B Na3 h4 Nf3 h3 Bg5 Qd7 Qc2 Qe6+ Kd4 Nf6 g8Q Rh6 Qb3 Bd2 Nc4 Bf4 Ra3 Nh7 Qg7 Rf6 Nb6 B4d6 Qd5+ Kb5 Qe5 Nc6+ Ke3 Na7 b8B Bb7 Bc7 Rd8 Qe4 Qa1 Rc1 h1N Kd2 h2 Kc2 Ng3 c6 h1N Qf5+ Be5 Bd2 Ne4 Be1 Nhg3 Bb8 Bd6 c7 Nc5 c8R Nge4 Bc7 Bh2 Ra8 Bde5 Rc8 Rd7 Rf8 Rd8 Rh8 Nf8 Rh5 Nh7 Rd1 Bc6 Rd2 Qd1+ Kb2 Ba8 Rc2 Bd4 Bd2 Qh1 Be1 Qg2 Qh8 Rh6 Nh4 Qh1 Kb1 Nd6 Na4 Bg2 Ba5 Ne4 Nf3 Bde5 Qg8 Bh8 Nb6 Rf6 Qg7
3Q2Nn/q1nP1RKp/1BqB2n1/1r4b1/3P2Qr/1N1b1BP1/1b1R2pb/7k b - - 0 1 legal: proof: c4 e5 f4 exf4 a4 d5 cxd5 b5 axb5 g5 h4 gxh4 g3 f3 Qc2 Nf6 Qf5 Ng8 Qh3 Ke7 Qh2 Ke8 Qg2 fxg2 Kf2 Ke7 Ke3 Kf6 Kd4 Kf5 e4+ Kg4 Ke5 a5 b4 f5 d6 c5 d3 h3 b6 h2 d7 c4 b7 c3 b5 a4 b6 c2 Bf4 c1B Bd2 f4 Nc3 f3 Be3 f2 Nf3 Kh3 Nd1 a3 Bd2 a2 Kf5 Ne7+ Kf6 Ng6+ Kf7 Ra4 e5 Rh4 e6 Qc7 e7 Qc6 e8Q Na6 b8Q Bc5 b7 Nc7 Be2 f1N Nd4 Ne3 Kg7 Ned5 Qg8 Nde7 Rf1 h1Q Rf7 Kh2 Bf3 Qg1 Ne3 Kh1 Ng4 Qe3 Rb1 a1B Ba5 Bb2 Bb6 Qg1 Nf6 Bg5 Qd8 Re8 Rc1 Nh8 Ng8 Neg6 Rd1 Re5 Rd2 Qa1 Nb3 Qa7 Qa8 Bg1 b8B Ba6 d4 Bh2 Qb7 Be2 Qa6 Bf1 Qe2 Rb5 Qe4 Bd3 Qg4 Na8 Bf4 Nc7 Bd6
1Q3Qnr/1n1pr1qb/nkBb4/1P5K/2N2B1P/P1qq3q/1pQ1N3/2R4R b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 c5 d4 b6 g4 cxd4 gxh5 b5 Qb3 bxc4 b5 Ba6 Qa4 Bc8 Qb4 axb4 Ke2 e5 Kf3 g5 Kg4 b3 f4 d3 h6 e4 f6 c3 f5 e3 h7 c2 a3 d2 h3 d1Q+ Be2 b2 Nf3 Bd6 Nh4 Na6 Re1 Bb7 Rf1 Be4 Nf3 Qd3 Bd2 c1N Ng1 Nb3 Kh5 g4 Rc1 g3 Bf3 e2 Bf4 e1Q Nd2 g2 Nc4 Nbc5 Ne2 g1Q f7+ Ke7 Bh1 Qg7 f6+ Ke6 f8Q Kd5 f7 Qec3 Qe7 Nb7 f8Q Kc5 h4 Qb6 Qef6 Re8 Qg6 Re7 Bg2 Bf5 Bc6 Qba5 Rh1 Qb3 Rac1 Qac3 Qg2 Qh3 Qe4 Qd1 Qc2 Qdd3 Qb8 Be4 Na5 Kb6 Ng1 Nh6 Ne2 Rg8 h8Q Bh7 Rcg1 Rc8 Rc1 Rf8 Qg8 Rd8 Qf7 Rh8 Qff8 Ng8 Nc4+
n3Rq1R/R3B3/K1NB4/nQ1P4/nbp1P3/2P1rqpr/k4nn1/QN3r2 b - - 0 1 illegal: No possible last move
1RrB1q2/Q1Rp2P1/n3k1Bn/P1nn1qRn/4r1p1/6P1/1K3N2/QN1qb3 b - - 0 1 legal: proof: h4 b5 d4 g5 b4 c5 c4 cxd4 h5 bxc4 b5 c3 b6 Bb7 e3 axb6 e4 f5 exf5 Bd5 Qc2 Bf7 Qd1 Bg6 hxg6 Ra3 Rh5 Ra7 Rh1 Ra8 a4 h5 f4 e5 f6 e4 f7+ Ke7 g7 e3 f5 d3 f6+ Ke6 a5 b5 Qe2 d2+ Kd1 b4 Kc2 d1N Qb5 e2 Rh2 e1N+ Kb3 g4 Ra2 h4 Nd2 h3 Ngf3 c2 Be2 Nh6 Ng1 Nd3 Qc5 Nc3 Nb1 Na6 Bg5 c1Q Rc2 Rc8 Qa7 Nd5 Rc7 Ndc5+ Ka2 Qe7 Bd3 Qd1 Kb2 b3 Bg6 Qd8 Rh1 h2 Nh3 Qe8 Rf1 h1N Rf5 Ng3 Nf2 Nh5 g3 Bd6 Bh4 Qf8 Rg5 Bf4 Nd3 Bd2 Nf2 Qd8 f8Q Be1 f7 Qe7 Qd8 Re8 f8R Qd6 Rf4 Qf8 Rb4 Re7 Ka3 b2 Rb8 Qf7 Qf8 Qg8 Qf3 Qf8 Qb3 Ree8 Qa2 Re7 Qa1 Ree8 Ka2 Re7 Nd2 b1Q+ Ka3 Qbf5 Kb2 Kf6 Nb1 Re4 Nh1 Ke6 Nf2 Qff3 Rf5 Qf4 Bd8 Qff3 Rg5 Q3f4 Nd2 Q4f5 Nb1
q2Q2NK/1Pn4n/Q1nN3P/1B5Q/5b2/1q1p1P1q/rpR5/BbqqR1k1 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g3 cxd4 g4 hxg4 b4 b5 a4 a5 Qd3 Ra6 Qd1 Rb6 Ra2 axb4 Ra1 b3 Na3 b4 Nb1 Rb5 axb5 Rh4 Nh3 Rh6 Ng1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 h4 e5 c4 d5+ Kd3 b2 b6 g3 b7 b3 h5 g2 h6 e4+ Ke2 Ke5 f3 d3+ Ke3 d4+ Kd2 Kf4 c5 Kg3 f6 Kf2 c6 g4 c7 g3 f7 Bf5 c8Q Ne7 Qc3 Nec6 Ra7 Bd6 f8Q Na6 Qe7 Nc7 Qc4 Qa8 Nc3 b1Q Nge2 g1Q Nb5 g2 Nec3 Qh2 Nd5 g1N Qd8 Nh3 Bb2 Ng5 Nf6 Nh7 Ra2 Qh3 Ba1 Rg8 Qf7 Rg2 Rc2 Qba2 Ng8 e3+ Kc1+ e2 Kd2 Be5 Nd6 Q2a4 Qh5 e1Q+ Kc1+ d2+ Kb2 Rh2 Bb5 Bf4 Qb1 Qb4 Qa2 Kg2 Qa6 Qd1 Rc5 Bb1 Re1 d3 Rc2 Qa3+ Kc3 Qdc1 Re4 Kg1 Re1+ Qf1 Kc4 d1Q Kc3 Ne5 Kd4 Nc6+ Ke4 Rf2 Kf5 Qab2 Re3 Qh3+ Kg6 Qa3 Kg7 Rd2 Rc5 Ra2 Rc2 b2 Kh8 Qb3 Re1+
BN1Q3r/k1RKNnP1/np4qq/2B3Q1/6RP/4nbbB/2qp2P1/2q2b2 b - - 0 1 illegal: No proof kernel
1n5N/1Q4p1/br1RQP1r/NkbKB2n/2n2PN1/p7/n1R1n1PB/1b4n1 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 axb5 Qc7 e4 Qb7 Bc4 Qd5 h4 Qe5 Be6 fxe6 h5 Qf5 h6 Nxh6 exf5 Ng8 Kd2 d5 Kd3 Kd7 c4 a5 b4 h5 b6 Kc6 b7 a4 c5 e5 Ra3 h4 Qf1 h3 Rc3 a3 Rb3 h2 Nh3 e4+ Ke2 e5 Rb2 e3 Kd3 e2 Qg1 e1N+ Kd2 d3 Ke3 e4 Kd4 e3 Nf2 d2 Qf1 d1B Qc4 e2 Rc2 Ra6 Ng4 Rb6 Nd2 Rh6 Nb3 Nd3 Be3 e1N Bg1 Nf6 Qa6 Nh5 f6 Nc1 b5+ Kc7 c6 Bc5+ Ke5 d4 Na5 d3 Ke4 Kd6 c7 Kd7 Kd5 d2 Kc4 Na2 Kd5 Nc6 b8Q Nf3 Qbb7 Nb8 Bd4 Be2 Rd1 h1N Bg1 N1g3 Bh2 Ng1 Qaa7 Bd3 Qaa6 Rc6 b6 N3e2 Qc4 Ke8 Qb3 Bcf5 c8N Ba6 Ne7 Bh7 Rf1 d1N Ng6 Nb2 Nh8 Nc4 Rd1 Bg6 Qe3+ Kd8 Qe6 Bf5 Qa8 Bd3 b7 Kc7 Rdd2 Kb6 Rd1 Kb5 Qa7 Nd7 b8B Rb6 Be5 Nb8 Qb7 Bh7 Rcc1 Bb1 Rc2 Rh7 Ke4 Rh6 Rd6 Ka4 Kd5 Kb4 Bg3 Kb5 Bh2
1q2B1R1/rN2R1K1/2BrbP1Q/5r2/1p6/1k2nQ1q/1Pbpn1Pp/B2q3N b - - 0 1 illegal: Other
4RB2/n1n1NPK1/1n1rbpR1/2qNp1bQ/4P3/qB1PB3/k3pQ1r/r7 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g3 f4 g4 hxg4 e4 Kd7 b4 Qe8 Qf3 Na6 Qe3 fxe3 f4 Rh4 f5 Rh7 f6 Rh8 f7 Nb8 Ra6 Qd8 Rf6 gxf6 Ke2 Kd6 h4 a5 h5 e5 b6 c5 b5 c4 b7 Kc5 h6 Kb4 h7 Kb3 d6 c3 b6 c2 d7 a4 Nc3 a3 Rh6 a2 Rg6 a1R Nf3 g3 Nh4 g2 Kf3 g1Q Nd5 Na6 b8Q Ne7 b7 Nc6 Nf5 Ka2 Nfe7 Qa5 d8B Nc7 Qa7 Bh6 b8R Be6 d3 e2 Be3 c1N Bh3 Nb3 Qd4 Bc8 Be6 Ra6 Qb6 Qf2+ Kg4 Bg5 Kh5 Na7 Qc5 Rd6 Ra8 Re8 h8Q Qa3 Rb8 Nd2 Qd4 Bh4 Kh6 Bg5+ Kg7 Nc4 Qh5 Rh8 Ra8 Na6 Bb6 Nc7 Bc5 Nb6 Rb8 Bd7 Re8 Bc8 Bd2 Qg1 Qf2 Qgc1 Bce3 Qcc5 Bb4 Rh6 Bd7 Rh8 Ba4 Be6 Bb3+ Kb2 Ba4 Qcc3 Qhh2 Rc6 Nc8 Ka2 Bf8 Rd6 Nce7 Qcc5 Qh3 Rh4 Qg4 Rh3 Qh5 Rh2 Bb3+
Q5RB/1Pqr1r1R/2B2n2/brn2qR1/1P1N1Np1/1q3k2/PQ1pb1pK/8 b - - 0 1 illegal: No possible last move
k2BnB2/1b1N3K/2Q2R2/5Pr1/2N1bb2/pPPb1p1Q/1R1pr1n1/qn4N1 b - - 0 1 legal: proof: h4 c5 e4 g5 f4 gxh4 a4 b5 Be2 f5 exf5 e5 axb5 e4 d4 cxd4 Bf3 exf3 Kf2 a5 g4 d5 b3 Kd7 f6 Kc7 f5 Kb7 c3 h5 b6 a4 g5 a3 g6 h3 Kg3 h2 Kh4 d3 Kg5 d2 g7 h4 Kg6 d4 f7 h3 Ne2 d3 Rf1 h1N Bb2 h2 Rg1 Rh5 Ng3 Na6 Qf1 d1B Nd2 Rg5+ Kh7 Nc5 Nh5 Ne4 Rb1 Bc2 Bc1 Nhg3 Ra1 h1B Ra2 Bd6 f8B Bf4 Qe2 Nf1 Rg4 Ne3 Nc4 Ng2 Ng3 Nd2 Qf1 Nb1 Ne2 Qe8 Ng1 Qe1 Rb2 Nf6+ Kh8 Rb8 g8Q Ka8 Qg6 Ne8 Kh7 Bb7 Qc6 Rd8 Rh4 Rd5 Rh3 Re5 Rh6 Re2 Rf6 Qd1 Be3 Qc1 Bec5 d2 Bce7 Be4 Bd8 Qc2 Qe1 Qc1 Qh4 Qc2 Ra2 Qb2 Qh3 Qa1 Rc2 Ne1 Ra2 Bg2 Rc2 Bf1 Rb2 Ng2 Na5 Kb8 Nc4 Ba6 b7 Ka7 b8N Bb7 Rg6 Ka8 Nd7 Re1 Bf6 Bfd3 Bd8 Re2 Rf6
Q1q2k1b/R1R1b3/bpr5/pbn4N/3B1N1P/p2P2B1/2QP2r1/n2K1Q1n b - - 0 1 legal: proof: b4 d5 a4 g5 f4 b5 fxg5 bxa4 b5 d4 Ra3 d3 exd3 Nd7 Ra1 Nb8 g4 h5 b6 Qd4 b7 Be6 g6 Qd8 g5 Bc4 Bh3 Be6 Bg4 hxg4 Qf3 Bf5 Qe3 Bc8 Qb6 cxb6 c4 f5 h4 e5 c5 a5 g7 a3 g6 f4 c6 f3 c7 e4 Kd1 g3 Rh3 e3 Rh1 e2+ Kc2 e1N+ Kd1 g2 Nh3 g1B Rh2 f2 Bb2 f1B Ra2 Nc2 Nc3 Na6 Rf2 Na1 b8B Bg2 Rf7 Nf6 g8Q Nh5 g7 Bc6 Ne2 Bb5 Ng3 Rh6 Rd7 Bb7 c8Q Bd4 Qd5 Be5 g8Q Bh8 Qf3 Rg6 Qgc4 Be7 Bd4 Rg4 Bf4 Kf8 Rc2 Rb8 Q8c6 Rc8 Qf1 Rc7 Qb3 Qc8 Rc5 Rg5 Qc2 Rg8 Qd5 Rg7 Rc6 Nc5 Qe4 B7a6 Qeh1 Nf6 Nh5 Nfe4 Qhf3 Rg2 Bg3+ Bef6 N3f4 Nf2+ Ke2 Nh1+ Kd1 Be7 Qe4 Ncb3 Rc3 Rc5 Ra7 Rc4 Qa8 Rc7 Rc6 Nc5 Rd6 Rc6 Rdd7 Ncb3 Rdb7 Nc5 Rc7
6n1/2r3p1/7n/2P1K3/p1qQnQ1b/k3PNrb/BRPpb1bN/3R1RB1 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 f4 exf4 g3 fxg3 dxc5 gxh2 Kd2 h5 Ke3 a5 Kf4 d5 b4 Kd7 e3 f5 b6 Kc6 b7 a4 Ke5 h4 Bc4 f4 Ba3 f3 Qd2 h3 Qg2 f2 Qg5 f1B Bd3 d4 Qg4 Be7 Qf4 Nh6 Qg3 Qg8 Qf4 Be2 Bf5 Kb5 Bd3+ Qc4 Bb2 Ra7 Nf3 Bh4 Rf1 h1N Nh2 Ng3 Nd2 Ne4 Rad1 Rf8 Qg4 Rf3 Bc3 Rg3 Ndf3 Bd7 Be1 Bf5 Bf2 Nc6+ Kf4 Bc8 Bg1 Ne7 Ke5 Neg8 b8Q+ Rb7 Qd6 Rc7 Qf4 Be6 Ng4 h2 Qd5 h1B Ngh2 Ka6 b5+ Ka5 b6 Kb4 b7 Ka3 b8R Bh3 Rb2 B1g2 Qd7 Nd2 Bh7 d3 Qdd4 Ne4 Bg6 d2 Bf7 Qb4 Bb3 Qc4 Ba2
5r2/n1nP3Q/Q1r3B1/R2pPbPK/rNR5/k3pp1N/2B1q2b/q3r2B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 e4 e5 fxe5 Nf6 e6 Ng8 d4 Nd7 Qf3 Ba3 Bf4 Qf6 Bd6 Qd8 e5 Nb8 Qe4 dxe4 d5 Bc5 Bf8 Ba3 d6 Bc5 Bh6 Ba3 d7+ Ke7 Be3 Bd6 Bc5 Kf8 Ra3 Be7 Bd6 cxd6 Bc4 Bg5 Ra1 Ke7 Bd3 Bh6 Bf1 Bf8 Kf2 a5 c4 h5 b4 f5 g4 h3 Kg3 h2 Kh4 f4 b6 e3 c5 f3 b7 a4 c6 a3 c7 a2 b5 Ra4 b6 Na6 b8Q Bh6 b7 Bf4 Kh3 h4 g5 d5 Kg4 h3 Na3 Rh6 Rb1 a1Q Rc1 Rf6 Re1 Rf8 Re2 Qe8 Bg2 Qg6 Kh4 Qd3 Re1 Qe2 Qa7 Bg3+ Kh5 Bf4 b8Q Bb7 c8B Nc7 Qba8 Ba6 Q8b8 Bd3 Ba6 Bf5 Qbb6 Kd8 Rc1 Ne7 Nc2 Nc8 Nb4 Bg3 Qab7 Na7 Rc4 Ra2 Qd6 Ncb5 Rc7 Qad1 Bf1 Nc3 Bd3 Ncb5 Qba6 Ra1 Rc1 Qa4 Bc2 Bf4 Qe7+ Kc7 Kh6 Bg3 Qc8+ Kb6 Qh7 Ka5 e7 Nc7 Bd3 Qaa2 Be4 Ka4 Rc5 Kb3 Ra5 Qab2 Qa6 Ra4 Bc2+ Ka3 e8B Qa1 Bg2 Qd2 Bb1 Bf4 Ne2 Qdb2 Rg1 h1R Bg6 h2 Rc1 Re1 Kh5 Qd2 Rc6 Rc1 Ng1 h1R+ Nh3 Qe2 Bd3 Rhe1 Bh1 Bh2 Rcc5 Rc4 Bc2 Rc3 Rcb5 Rc6 Rc5 Qc1 Rc4 Qb1 Rd4 Qa1 Rc4
1Nr5/PB2RKPQ/7P/1R2bN2/1pr1p1n1/r1k5/pq1n1r1Q/1bBq1R2 b - - 0 1 illegal: No proof kernel
2Q5/3n1Bbp/1kpP2qQ/4nP2/r3P2q/NRBbR3/1K1pR1q1/nb2N3 b - - 0 1 legal: proof: g4 b5 h4 g5 a4 gxh4 axb5 e5 d3 f5 d4 exd4 c4 fxg4 Ra4 a5 Bh6 d5 Bc1 d3 Ra3 d4 Ra1 Ra6 Nf3 Rd6 Ng1 Rd5 cxd5 Ke7 Ra3 Kf7 Ra1 Ke8 Kd2 Kd7 e4 g3 f4 h3 b4 h2 b6 a4 f5 g2 b5 a3 b7 a2 b6 c6 Qe2 Bg7 Qh5 Nf6 Qh3 Ng4 Qe3 Qh4 Nf3 g1Q Ne1 Ne5 Na3 Qg6 Qh6 Rd8 Rg1 h1Q Bb2 Qhg2+ Kc1 d2+ Kc2 Rf8 Bc3 d3+ Kb2 d1B+ Be2 d2 d6 Bc2 Bc4 Bb1 Bf7 Kd8 Rf1 Nbd7 b8Q Rg8 Rf2 Re8 Qa7 Ba6 Re2 Kc8 Re3 Bad3 Qa6+ Kb8 b7 Re7 Qa5 Re8 Qd8+ Ka7 b8R Ka6 Rb4 Rg8 Qc7 Ra8 Rb3 Ra7 Re2 Ra8 Qc8+ Ka7 Bb4 Kb6 Re3 Ra4 Re2 Bbc2 Rc1 Bb1 Rcc3 Bb5 Rf3 a1N Rfe3 B5d3 Bc3+
1r2nK1R/RPN1rpRr/3PbP1k/p1N1r1q1/r1p5/1B5q/2QnQ3/6B1 b - - 0 1 legal: proof: e4 b5 d4 d5 exd5 g5 h4 gxh4 c3 Bg7 c4 Be5 b3 Bd6 a3 Bb4+ axb4 bxc4 b5 cxb3 Kd2 Kf8 Kc3 Kg7 Kb4 h5 Kc5 e5 f4 h3 g4 e4 b6 b2 d6 h4 d7 e3 f5 e2 g5 e1R b7 c6 Kd6 a6 d5 c5 g6 h2 Bc4 h3 Nc3 b1R Qc2 Nf6 Nge2 Nc6 Nf4 Nd4 Be3 Nb3 Nb5 Nd2 Bb3 c4 Nc7 Kh6 Bg1 Re5 g7 Rbe1 g8R Rb8 Nfe6 Rh7 Rg7 Ne8+ Kc6 R1e2 d6 Qg5 d8Q R2e3 Nc5 Be6 f6 Re1 Ra4 Ra1 Rb4 Ra4 Rb6 a5 Ra6 Bd5+ Kd7 Be6+ Ke7 Rf5 Bd4 Re5 Rd1 h1Q Bg1 h2 Ra7 Qhg2 Kf8 h1R Qe7 Rh4 Re1 Qh3 Re2 Rhe4 Rh2 Bd5 Qe6 Re3 Qg4 Re7 Qe2 Be6 Rg8 Re5 Rg2 Qgh4 R2g7 Qg5 Rh8
nB2K2k/n4R1Q/b5Q1/2NP4/NP1n2q1/2R1P2p/pqBN2p1/1rn1b1b1 b - - 0 1 illegal: No possible last move, all moves rejected
6Q1/2nk2B1/1p4nQ/3Q1P1p/pPq3bP/B5rb/bq3N2/NR1b1RnK b - - 0 1 legal: proof: b4 c5 d4 e5 a3 exd4 Qd2 a5 Qd1 Ra6 Kd2 Rb6 Ke1 cxb4 Kd2 b3 Ke1 Rb4 axb4 Bc5 Kd2 Be7 Ke1 Bf8 f4 f5 e4 Qf6 e5 Qe7 Bd3 Qg5 Be4 fxe4 g3 Qd8 f5 Be7 Ne2 Bg5 Ng1 Bf4 gxf4 Qe7 Kf1 Qg5 Ke1 Qd8 Kf2 h5 Kg2 g5 c4 d5 h4 e3 f6 a4 e6 b6 e7 g4 c5 d3 f7+ Kd7 f8B g3 Qf1 e2 Nf3 e1Q Qe2 d2 Ng1 d1B Qc4 d4 Bh6 b2 Qd3 Qc3 Bg7 Qc4 Na3 b1B Nc2 Bg4 Ba3 Na6 Nh3 Nc7 Rf1 Ba2 Kh1 Qf8 Rfb1 Qf6 Nf2 Qe5 Qg6 d3 Qh6 d2 Rf1 d1B Rb1 Qb2 c6+ Ke8 Na1 g2+ Kh2 g1N Kh1 Nb5 c7 Kd7 Qg6 Rh6 Qe4 Rg6 e8Q+ Kd6 Qf8+ Kd7 Qb7 Ne7 Qf6 Rg5 Qh6 Ng6 Qe4 Bh3 Qe5 Rg3 f5 Bb7+ Qe4 Bdg4 Qf3 Be4 Qg2 Bc2 Qb7 Bcd1 c8Q+ Kd6 Qf3 Nc7 Qg8 Kd7 Qfd5+
4Q2B/K1n1q2p/bp2Q3/P2Nr1N1/2bP2Rn/R1q4p/1Bqb2P1/2Q1k2b b - - 0 1 illegal: No possible last move, all moves rejected
Nrb1QQ1R/2k2KPn/pB3P1b/1nb3Rn/2B2pP1/b3B3/3p4/qN2q3 b - - 0 1 illegal: No possible last move
N3B3/K2Pnn2/BP1r1BRP/4N3/p3k3/1pQbq3/nR1rQ2p/2n2qr1 b - - 0 1 illegal: No proof kernel
2N5/nrkB1bpp/2P3r1/1N2B3/2B1rr2/2PR1Q2/1pKbP2n/r1b2QR1 b - - 0 1 illegal: No proof kernel
n3b3/R4Pp1/pBQ1Nn1B/1PR1Q2p/k3r2r/1r5b/4bNP1/K2bQ1n1 b - - 0 1 illegal: No proof kernel
8/2k1br2/Kpn1r2N/pQBP4/4r2b/R1NbPp1B/2P1Qb2/RQ1n1r2 b - - 0 1 legal: proof: b4 d5 g4 h5 gxh5 e5 f4 exf4 e3 b6 b5 d4 Kf2 d3 Qe2 dxe2 a4 Qd6 a5 Qd5 a6 Qb7 axb7 c6 Ra3 cxb5 Ra1 b4 h4 Kd7 d4 e1B+ Ke2 f5 Kd3 a5 Kc4 g5 Kb5 g4 d5 g3 h6 f3 h5 g2 h7 b3 h6 f2 Rh3 b2 Ra4 f4 Rh1 f3 Ne2 g1B Bh3+ Kc7 Ng3 f1R Ra3 Bf5 Nc3 b1R+ Bb2 Be4 Nf5 Bgf2 Rg1 Nc6 b8Q+ Kd7 Qe5 Nf6 Qh2 Re8 Ka6 Ng4 Ba1 Bh4 Qe2 Bef2 Rh1 Rg8 h8Q Kc7 h7 Re6 Nh6 Bfe7 Bb2 Rd8 Qe8 Rd7 h8Q Ra1 Qd4 Bd3+ Qc4 Rad1 Qb5 Rb1 Ba1 Rb4 Qf8 Rbe4 Qf4+ R4e5 Qb4 Re4 Qb2 Bfg3 Qb1 Nf2 Na2 Nd1 Bd4 Bf2 Bc5 Bf8 Nc3 Rf7 Rg1 Bfe7 Rg4 R4e5 Rga4 Re4 Ra1 Ne5 R4a2 Nc6 Ra3
3q2Qr/p1r1rB1P/1k2n3/Rr3BP1/NP1QK3/n3p3/NR1p3n/2r1Br2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 g4 fxe4 g5 b5 Be2 bxa4 Ba6 Nf6 Bf1 Ng8 h3 h5 Qd3 Ba6 Qe3 Be2 Qc3 Bg4 Qf3 g6 Qd3 Bh6 gxh6 g5 Qd2 Be2 Qd1 g4 Bd2 g3 Bc1 Bg4 hxg4 Kf7 Ra2 Kf8 Ra1 Ke8 Ke2 d5 c4 Kd7 f4 Kc6 b4 e5 h7 h4 c5 h3 g5 e3 Kd3 g2 f5 h2 f6 e4+ Ke2 a3 f7 a2 f8Q d3+ Ke1 d2+ Ke2 d4 Qf4 Nh6 Qf5 Nd7 Qf2 Rb8 Qf8 Rb5 Nh3 g1R Nc3 Ng4 Qg8 Nf8 Nf4 Ne6 Nd3 Rg3 Rb1 a1N Na2 Nc2 Rb2 Na3 Bh3 Kc7 c6 Kb6 c7 Rf3 c8B Rf1 Rg1 h1R Nc5 Nh2 Bg4 Rf7 Bh5 Rc7 Re1 Rf1 Bf7 Ng7 Bf5 Ne6 Qc2 d1R Bd2 Rc1 Qc3 Rh1 Rg1 Rf1 Be1 d3+ Kd1 e2+ Kd2 Rf3 Qcg7 Rf1 Ke3 d2 Qd4 Nf8 Bf2 e1R+ Kf4 Ne6+ Ke5 e3 Ke4 Rc1 Bg3 Rf3 Rd1 Rff1 Be1 Rc3 Ra1 Rd3 Qdg7 Rdd7 Qd4 Re7 Nc1 Nc4 Ra5 Na3 Na2 Rhg1 Bh4 Rc1 Be1 Rf1 Na4+
N1n2bR1/1qP1b1BQ/QpQ1KR2/P2p4/1B1r2rk/1b1bP3/2p3np/4N3 b - - 0 1 illegal: No extended proof kernel
1Nr5/P3ppn1/kn2P2b/2b5/2pPR1N1/3q1BQp/2B2K1N/1brQ1bR1 b - - 0 1 legal: proof: b4 g5 f4 d5 fxg5 a5 a4 axb4 c4 Qd6 cxd5 Qxh2 Ba3 bxa3 e4 Kd8 d4 c5 g4 Kc7 d6+ Kb6 g6 h5 g7 c4 a5+ Kb5 d7 h4 d8N a2 g5 b6 e5 Qc2 g6 Nf6 g8B Nbd7 a6 Ne8 g7 Qd3 a7 Ka6 Nf3 b5 Nbd2 b4 Nh2 b3 Be2 b2 Ne4 b1B Kf2 Nb6 Bf3 Bh3 e6 Rc8 Re1 Bf1 Bh7 h3 g8Q Bh6 Qg1 Rg8 Nf6 Rg6 Re4 Ng7 Nc6 Rg2+ Ke1 Rc2 Nfg4 Rc1 Kf2 Bc2 Rb1 a1B Bg6 Bc3 Qg3 Bb4 Nb8+ Ka5 Rb2 Bb1 Rbe2 Bc5 Re1 Be2 Rg1 Bf1 Re3 Qa3 Bc2 Qd3 Re4 Kb5 Nd7 Ka6 Nb8+
1Qnnn3/k2b2B1/pp2npP1/3Q3P/B4N1b/K1pP1qR1/4N1r1/3R2Qq b - - 0 1 illegal: No proof kernel
Q5b1/p1q2kPq/p1P2r1Q/1P2BnKN/BRr1Q3/pq6/3pn1R1/N6q b - - 0 1 illegal: No proof kernel
2b1n3/Q3pnbQ/RBnp2pQ/1PN2P2/1nK2N2/7B/Rbn1P1p1/1rk5 b - - 0 1 legal: proof: b4 f5 d4 c5 a4 cxd4 g4 fxg4 c4 Qc7 b5 b6 a5 bxa5 b6 a4 h4 a5 h5 g6 h6 Qe5 Nc3 Qg7 hxg7 Ra7 Nb1 Rc7 Rh4 Rc5 Rh1 Rb5 cxb5 Ba6 Nh3 Bb7 Ng1 Bc8 Kd2 Kf7 Kd3 Kf6 f4 Kf5 b7 h5 Na3 h4 Be3 d6 Bh3 Nh6 g8Q Nf7 Bf2 Nc6 b8Q Bg7 Nc2 a3 Qe8 a2 Qd2 a4 Re1 a1B Qb7 a3 Qa6 a2 Kc4 Ke4 f5 d3 Qb7 g3 Rh2 g2 Qb8 Bab2 Nf3 a1N Qh6 d2 Qh7 d1N Qh5 Nc3 Ne3 Nc2 Qa7 Nd5 Nd4 Nc7 Qg8 Ne8 Nd5 Rh6 Nf4 Rh7 Bg4 h3 Rhh1 h2 Nb3 Rh8 Rhg1 h1N Bb6 Nf2 Qh6 Nd3 Ra1 Ndb4 Nc5+ Ke3 Ra2 Kd2 Rga1 Rh7 Ra6 Rh8 R1a2 Kc1 Qh2 Rh3 Qh7 Rb3 Q2h6 Bbe5 Qg8 Rb1 Bh3 Bb2 Qgh7
1b2K1R1/7P/N2BPpBr/k3nnp1/4Q2R/2QqP2p/Nnp3p1/1b1r3R b - - 0 1 illegal: No proof kernel
3rq3/pbN1p2R/1pP3Nr/r3Bpn1/7Q/BK2PP1b/2p1kR2/1NQ3b1 b - - 0 1 legal: proof: b4 d5 h4 g5 c4 h5 c5 b6 b5 gxh4 g4 Nc6 Bg2 Nd4 Be4 Nc6 Bd3 Na5 Bc4 dxc4 gxh5 Nb7 a4 c6 a5 cxb5 a6 b4 axb7 Bh6 Rh2 Bg7 Rh1 Bf8 b8N c3 d4 c2 Kd2 h3 h6 h2 d5 b3 Kc3 b2 h7 Bg7+ Kb4 Bd4 d6 Nh6 Nf3 Bh3 Na6 Kd7 Nc7 Kc6 d7 f5 Kb3 Qe8 d8B Nf7 Nh4 Ng5 Ng6 Rc8 Rf1 h1B Ra4 Be4 f3 Bg1 e3 Rb8 Rd4 Ra8 Rd2 Rc8 Rh2 Rb8 Nd5 Kb5 Bc7 Ra8 Be5 Rd8 Nb4 Bc6 Nd5 Bb7 c6 Kc5 Rh1 Kb5 Nc7+ Kc5 Ka4 Kc4 Qe1 Kd3 Kb3 Rd5 Rh2 Ra5 Qh4 Rf8 h8Q Rf6 Qe1 Rd6 Qhh4 Rd8 Nc3 b1R+ Bb2 Rc1 Ba3 Rd1 Nb1 Rd2 Rh1 Rh2 Qc1 Ke2 Qe4 Bg2 Qd4 Rh8 Rh7 Bh3 Qh4 Rb8 Rf7 Rh6 Rh7 Rd8 Rf2+
1B4N1/P1b1b1RQ/2PRB2p/2K4k/N1p4r/1q4pQ/Pnp1R2p/q1r1b3 b - - 0 1 illegal: No proof kernel
b4r1b/k3qr2/8/n2Q1Bbn/1br3NP/1q2PN1P/1n1QRqBK/B2R1b2 b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 b5 e5 g3 exf4 b6 h4 gxh4 axb6 Bg2 b5 Bf1 b4 Kf2 Kd7 Kg2 Kc6 d4 Kb6 a4 c5 d5 g5 h3 f5 d6 f3+ Kh2 c3 a5+ Ka7 d7 b5 a6 b3 Qd2 g4 Qa2 b2 Bf4 f2 Nd2 b1Q Qc4 g3+ Kg2 b4 Qe4 c2 Qe6 c1N Qe5 b3 Ne4 b2 Nc3 c4 Bd2 f4 Na2 c3 Qe4 c2 Qd3 Bb4 Qe4 Nc6 Qe8 Nd3 Qe6 c1B Qd6 Rh7 Qf6 Na5 Be1 Bb7+ Nf3 Qe7 d8Q Rf7 Qfd6 Nf6 Q8d7 Raf8 Nc3 Nh5 Ra2 Be3 Qb5 Ba8 Ne4 Bd4 Qdd5 Bh8 Nf6 Qc2 Qa4 b1Q Ng4 Qbb3 Bc3 Nb2 Qd2 Rc8 Qb5 Rc4 Qbd5 Qf5 Rg1 Qff6 Kh1 g2+ Kh2 Rf8 Ne1 f3 e3 Qff7 Bd3 f1R Bc2 f2 Bf5 Qff6 Rh1 Rf7 Nf3 g1B+ Kg2 Bh2 Rg1 Nd3 Ba1 Bf4 Rh1 Bg5 Kh2 Nb2 Rg1 Rfc1 Re1 f1B Rd1 Kb6 a7 Rc8 Bh7 R1c4 Bb1 Rcf8 Bf5 Bc6 a8B Ka7 Qd6 Bb5 Bae4 Bc6 Q6d5 Ba8 Ne1 Qd4 Bg2 Qde4 Nf3 Qec2 Qc1 Qf2 Qc3 Nd3 Re2 Nb2 Qcd2
rQ2b3/Rb1B2K1/6Nn/PRn1Pq2/2QQnB2/Nr1bb1qb/3rq2P/k7 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 e4 Kd6 a4 Ke5 d3 Kd4 d6 c5 e5 g5 a5 f5 d7 b5 Qa4 g3+ Kf3 g2 Nd2 Kc3 d4 b3 d5 b4 d6 b2 Qa2 b1B Bb5 b3 Nc4 b2 Na3 g4+ Ke2 f3+ Ke3 f2 Kf4 f1B Nc4 g3 Qa4 Bbd3 Qd1 b1B Ba3 Bb7 Qa4 Na6 Nd2 c4 Nh3 g1R Bc1 g2 Ra2 Qc8 Kg5 f4 d8Q f3 d7 f2 Qb6 Nh6 Kf6 Bc5 d8Q Qf5+ Kg7 Be3 Qc8 Rd8 Qbe6 Nc5 Qd5 Ne4 Ba6 Bbc2 Qad7 Ba4 Q7f7 Be8 Ra3+ Kc2 Nb1 c3 Bd2 Kb2 Bb5 c2 Nf4 c1N Ng6 Nb3 Bd7 Nbc5 Rc3 Ka1 Qc7 Rdb8 Na3 Rd8 Bb5 Rd6 Qd4 Rb6 Bd7 Rb3 Qfc4 Na6 Qb4 Rb1 Bc1 Bc8 Bd2 Bg5 Qb5 Rb2 Rb3 Nac5 Qdb4 Bf4 Be1 Rd2 Qd6 Be3 Qbb8 Bca6 Qa4 Bc8 Rb6 Bb7 Qc2 Bfe2 Ra6 f1Q Qc4 Bg4 Bh4 Qe2 Bg5 Rb1 Bf4 g1Q Ra7 Qg3 Rc1 Bh3 Qdd4+ Rb2 Rc3 Rd2 Rb3+ Rbb2 Qdd5 Rb1 Rb5 Rb3 Qdd4+
1rBQ1nRN/3P2R1/br1b1N1K/1b6/n5r1/bP2r1B1/b1kqP3/QrR4n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 Kd4 g4 c5 g5 f5 g6 a5 d3 a4 b6 a3 b7 a2 g7 h3 Qc2 f3 Qa4 f4 Qa5 c3 Qb6 c2 Nd2 f2 Qc6 f3 Qb6 h2 Bh3 f1B Bf5 f2 Qb5 c4 Bh3 c3 Bg2 Nf6+ Kh6 Nbd7 b8Q Ra4 Rb1 a1R Bh3 Nd5 Ne4 R1a3 Q8b7 N5b6 Qc7 Bg2 Bd2 c1R Nc5 f1R Qb7 c2 Qc7 Ba6 Ne4 Rf6+ Kg5 h5 g8R h4 Bf4 Rb3 Bf5 h3 Qa5 Re1 Rg6 c1B Qb8 Rab4 Qa3 Na4 Qa1 Rfb6+ Nf6 Bc6 Bg4 Bcb5 Nf3+ Kc5 d4+ Kc4 d5 Re3 d6 Kb3 Nh4 Kc2 Rg1 h1B Rg3 Bd5 Rg1 Ba2 b3 h2 Be5 Rh7 Rg8 h1N Ng6 Ba3 Nh8 Rd4 Bh3 Re7 Kh5 Re8 R1g7 Rg1 Be6 Rdg4 Bg3 Be7 Qa8 Nf8 Kh6 Qd7 Qd5 Reb8 Rd1 Qd8 Bc8 Rf1 Rd4 Rb1 Rd1 Rc6 Qdd4 Qa5 Qb6 Qd2 d7 Bed6 Qd8 Rcb6 Rc1+
2k4B/2n2qbK/3q1Q1b/1BNbr1PP/1P1qQNN1/2Rq1r2/n7/r2Rq1q1 b - - 0 1 illegal: No proof kernel
1r4bq/1kRNr3/b2rBb2/3rB1PP/q2BPR2/1rQ4b/3nbK1n/2Q2N2 b - - 0 1 illegal: No proof kernel
1k1b4/nn1b1rr1/1RNRQ3/q1R2q1b/2K4n/q1P3qQ/2nqP1P1/N4BB1 b - - 0 1 illegal: No proof kernel
b2rr3/r1b1N1n1/kb2R1q1/2R5/PnKBQ3/bNnP2n1/NP3b2/Q5qB b - - 0 1 illegal: No proof kernel
qnqR1b2/1Q2n1B1/2b1rQ2/RNP1b3/1q1r1P2/rkr2PN1/b3Qr2/3B3K b - - 0 1 illegal: No possible last move
1b2b1K1/B3Qn1r/kq1q1PQ1/2PRq1bR/1N2brb1/5BPQ/nN4r1/7r b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Ke2 h5 b4 d5 c4 Kd7 f4 Kc7 c5 Kb7 g3 e5 f5 a5 f6 h3 b6 e3 Kd3 e4+ Ke2 a4 b5 a3 Ra2 h2 Nh3 h4 Qa4 d3+ Ke1 d2+ Ke2 d1B+ Ke1 d4 Bd3 e2 Kd2 e1R Bc2 e3+ Kd3 e2 Kc4 d3 Nc3 d2 Rf1 h1B Be4+ Nc6 Qa5 Rh7 Nf4 h3 Nfd5 h2 Na4 Nb4 Nb2 Bd7 Rf5 Bd6 Bf3 Be8 Rh5 Rf1 Kd4 e1B Qa7+ Kc8 Ra1 a2 Qe7 Nh6 b7+ Kb8 Ke4 Ka7 b6+ Ka6 b8Q Nf7 b7 Qb6 Qc8 Bb8 Kf5 Rg1 Kg6 Rg2 Rb1 a1Q Qh3 Na2 Nb4+ Ka7 N2d3 Qe5 Nb2 Be2 Ra1 d1Q Bf4 Qdd6 Rd1 Bf2 Rd5 Be3 Be4 Bg4 Bf3 Rh6+ Kg7 Rh7+ Kg8 Bd2 N4d3 Ka6 Nb4+ Kb5 Be3 Ra4 Bd4 Bf4 Be3 Bg5 Bf4 Ba7 b8Q Ka5 Qc8 Bb8 Qf5 Kb5 Nc2 Ka6 Qg6 Rd4 Bd2 Rf4 Ba5 Qb3 Bb6 Qb5 Ba7 Qbb6 Be4 Rd2 Bf5 Be4 Bd7 h1R Nb4+ Ka5 Ba4 Rg2 Bd1 Kb5 Bf3 Ka5 Nc6+ Ka6 Nb4+
r3Nn2/1B1B2kq/q1Pr1nP1/B1Q3R1/2n1r3/2R1bb2/bnKn1P2/2b1N1Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 a3 Kf7 Kd2 b5 c4 e5 g4 h5 c5 d5 g5 h3 f6 h4 c6 b3 Bc4 d3 Qf3 b2 Qg2 e4 Qh2 e3+ Kd1 e2+ Kd2 e1B+ Kd1 b4 Nf3 d2 Ba2 b3 Rg1 d4 Qd6 h2 Rh1 h3 Rg1 h1Q Qb4 h2 Qc5 Qa5 Qf5 Bc5 Qg4 Be6 Qh4 Qa6 Nc3 b1N Nd5 b2 Nc7 Nd7 Qg4 Rh4 Qg3 Re4 g6+ Kf8 f7 Kg7 Qg2 Ngf6 Qf1 Ba7 Rg5 Bb6 Qg1 Ba7 Kc2 d1N Bd2 Bc4 Bb4 Bd2 Ba5 Bc1 Bb3 Bd5 Bc4 d3+ Kb3 d2 Ne1 Be3 Kc2 Qg2 Be2 h1B Bg4 Qh3 Bf5 Qh7 Be6 Nc5 Bd7 Ne6 Ra2 Bf3 Ra1 Nbc3 Ra2 b1N Rb2 Qh4 Rb3 Na4 Rc3 Nb6 Qh1 Rg8 Qg1 Nb2 f8Q+ Kh8 Re5 d1R Qc5 Ba2 Rg5 N6c4 a4 Qa7 Bb4 Qh7 a5 Rd6 a6 Kg7 Ba5 Qb7 a7 Nbd2 a8B Qa6 Bb7 Ra8 Qb6 Nf8 Qa7 Nd5 Qc5 Nf6 Ne8+
1N2Qr1N/1Q1bP1K1/P7/P3r3/4rr1R/b2qn1R1/q1rq1bnB/bQ2k2B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 d4 exf4 Nc3 c5 Nb1 cxd4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 a4 d5 c4 g5 e4 f5 c5 b5 a6 g3 a5 f3 c6 b4 c7 f4 h3 f2 Be2 f1R Ra3 f3 Bd2 b3 Qc2 f2 Ra4 g2 Qa2 Kg3 h4 g4 h5 b2 h6 d3 h7 d4 Qb3 Nd7+ Kf5 Nc5+ Kg6 Nf6 e5 Rc1 e6 f1R Rh2 Kf2 Qb8 g3 Ra1 Nd5 Nf3 Rc2 Rh4 g1B Ng5 g2 Bf4 d2 Qb3 d1R Bc1 d3 Rh6 d2 Nc3 b1Q Nf3 Rde1 Nh4 d1Q Bf3 Re4 Ra3 Ke1 Na2 Nd3 Bf4 Bd4 Bh2 g1B Bh1 Ba1 Nb4 Qa2 Qb1 N3f4+ Kf7 Qg5 Ng6 Bd7 Rg3 Re8 Nc6 Ba3 c8Q Bb6 Qb7 Ng2+ Rf3 Qgc1 Rh4 Qd3 Nb8 Rhg8 h8Q Bbd4 Qe5 Rgf8+ Kg7 Bb6 Qb3 Qcd2 Rg3 R1f4 Nh8 Bf2 Qbb2 Nde3 Qh5 R8f5 e7 Ref8 Qe8 Rfe5 Qb1+
2B2kr1/2rP2b1/2P1nP1b/1R2Nn2/R1n1Q1Kb/q2n4/1b2QB1q/1q1b1B1N b - - 0 1 illegal: No proof kernel
n4r2/KBP1br1q/Q6R/2RqnR2/Q2P3N/rb1Pq2n/2Nr2qB/1q3k2 b - - 0 1 illegal: No proof kernel
3Qnb1N/1P1r4/1r2b1bN/1k3b2/rq3B2/r1Qn2P1/PNb1K3/1qRBR2n b - - 0 1 illegal: No proof kernel
b2b4/1QnbN2K/R3k3/B3P1P1/B5nb/5qPn/bNN1Q1bR/1b1rn2r b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 Kf2 Kd7 Kf3 h5 Ke4 b5 Kf5 c5 d4 b3 a4 h4 a5 f3 e3 f2 d5 b4 a6 b2 a7 h3 d6 h2 Ra4 b3 Qd4 c3 Ra5 c4 Ra6 c2 Qb6 c3 Qd4 Nf6 Qb4 Be7 Bd2 c1B Qh4 c2 Rb6 Ng4 Bb4 Na6 Nf3 Nc7 Nfd2 Qf8 Ba3 Bd8 Ba6 f1B Rg1 h1N Qg3 Nhf2 Qf4 Rh1 Qc4 Nh3 Bb4 f6 Kg6 f5 Rc6 f4 Ba5 f3 Na3 b1B Qe2 f2 Kh7 b2 Ndc4 Ke6 Bb5 Qf3 Ra6 Ba2 Ba4 b1B Nb2 Bd7 e4 Bf4 e5 c1N+ Nc2 Nd3 Ne1 Rc8 a8Q Bg3 Qb7 Bh4 g3 Bg2 Nc2 Rb8 Rc1 f1B Rd1 Ne1 Rd2 Bb5 d7+ Bc6 Qa8 Rb5 Qb7 Rd5 Qd1 Bb5 Rf2 Bgf1 Rh2 Bg2 Qe2 Rd1 Qb8 Kf7 Qc8 Ba8 Qb7 Bf6 d8N+ Ke7 Qc8 Bd7 Nc6+ Ke6 Qb7 Bd8 Ne7+
N1bQb1r1/1b1b1rP1/5R2/kP3bn1/1nRNB1Pb/1q3b2/2B2B1K/2nQ3n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kf2 Ba6 c4 h5 b4 f5 e4 d5 g4 Kd7 Kg2 Kc7 g6 Kb6 e5 f3+ Kg3 d3 e6 a3 e7 d2 e8B a2 g7 f2 Bh3 f1B Rh2 d4 Rh1 h4+ Kh2 d3 Qe1 d1B Bc6 d2 Bb2 f4 Ba4 f3 Bf6 f2 Qe2 Nd7 Qe5 Nh6 Nf3 Be7 Rg1 Qg8 Bc6 Bd3 Nd4 f1B Qd5 Nf7 Qf3 Ba4 Nc3 d1B Qf5 Rf8 Nde2 Nde5 Rc1 a1N Nb5 Nb3 Bhg2 h3 Kg3 h2 Qf3 h1B Rb1 Nc1 Bd7 Bh7 Nec3 Ned3 Be8 Nf2 Be5 Bh4+ Kh2 Ng5 Nc7 Bhc2 Bh5 Be8 N3b5 Bfd3 Rf1 Ba4 Bc3 Qd5 Rb3 Rf7 Bg6 Rg8 Be1 Be4 Rb1 Qd3 Rb2 Qb3 Rc2 Be2 Qd3 Bd1 Bf3 Bg2 Qd2 Nh1 Bg3 Be2 Qd1 B4d3 Bc6 Bd5 Rf6 Bef3 Be1 Be6 Rc3 Bb7 Na8+ Ka6 c5 Bb1 Bd3 Bc2 Bf1 Bcf5 Nd4+ Bb5 Rc4 Ba4 Bd5 Bac6 Ne2 Kb5 Be4 a5 Bf2 a4 Nd4+ Ka6 b5+ Ka5 Rc2 a3 Rc4 a2 Bfd3 a1N Bb1 Bcd5 c6 Nc2 c7 Nb4 c8Q Bdc6 Qd7 Bc8 Bbc2 B6b7 Qe7 B6d7 Qd8+
1br1knB1/1nqRq3/1rRQ4/3nNr2/2bPq2Q/1P4b1/K1B1N1P1/2q1Bb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 h5 d4 a5 Kd2 f5 Kc2 c5 b6 a4 e5 a3 b7 h3 e6 c3 Kb3 f3 e7 f2 Qd2 f4 Be2 f1R Bb5+ Nd7 b8Q a2 Qd3 c2 Nd2 h4 Nc4 f3 Qc7 f2 Qf3 h2 Qcg3 h3 Qd1 Ra6 Qg7 Nf6 Na3 c4+ Kb4 c3 Kb3 Rb6 Bg5 c1Q Qh6 c2 Be3 Nd5 Qh7 Ba6 Qe1 Qc7 Rb1 a1N+ Ka2 Nb3 Qd1 Na5 b3 Nb7 Bd3 Bc4 Qd2 Bg7 Ra1 Nf8 Ne2 Be5 Qb4 Bg3 Bd2 Rg8 Rg1 h1Q Qd6 h2 Qh4 Qe1 Bh7 c1B Bc2 Rh8 Bc3 Bcf4 Ba5 Qc1 Be1 Qe3 Nb5 Qe4 Na7 Rh5 Nc6 Rf5 Bb4 Rb1 Rc1 f1B Be1 Qg1 Ne5 h1Q Bd1 Qgh2 Rc3 Rc1 Bc2 Bb5 Rc6 Bc4 Kb2 Q2g1 Ra7 Qge3 Ka2 Qd7 Rc7 Qc6 Rd7 Qc7 Ra5 Qhg1 Rc5 Qh1 Rc6 Qhg1 Bb1 Rc3 Bc2 Qc1 Qh8 Qge3 Qh4 Ba6 Qdh6 Qc8 Nd3 Qe5 Re6 Q3e4 Rg6 Rc7 Rc6 Bc4 Qe6 Qg7 Qef6 Bd6 Ne5 Qd8 Qe6 Rc8 Qeh6 Qh7 Qe6 Bb8 Qd6 Qc7 Ng4 Kf7 e8B+ Kg8 Bg6 Qhe7 Bh7+ Kf7 Ne5+ Ke8 Bg8
1rB1Q1R1/PR2B1n1/r1bK1N1b/n2NP2n/2r3P1/3q2q1/1Qbr2qk/1q3N2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 a4 b5 d4 f5+ Kd3 c5 e4 c4+ Kc2 f3 g4 h3 a5 f4 a6 c3 Kb3 h4 Qc2 h2 Bd2 f2 Ra4 f3 Bd3 f1Q Na3 f2 Qb2 h3 Bb1 c2 Bg5 c1R Nf3 Qe1 Rg1 f1R Ba2 h1N Nd2 h2 Nc2 Ne7 Bh4 Nbc6 Bg5 Bh6 Na1 Rf2 Nc2 Bd7 Ne3 Ng3 a7 h1Q Ra5 Nef5 Bb1 Rb8 Be7+ Kc7 Rg2 Rc4 e5 Ng7 Rh2 N3h5 Ne4 Qg2 Nf6 Rd2 Bf5 Qeg3 d6+ Kb6 d5 Kc5 Ra1 Be8 Bc8 Na5+ Ka2 b3+ Ka3 Rb6 Rb1 Ra6 Rh3 Bc6 d7+ Kb6 d6 Kc5 Rhh1 Rg8 Rhc1 Rf8 Rc3 Kd4 Rcc1+ Kd3 Rf1 Ke2 Rfd1 Qc7 d8N Kf3 Ne6 Qd7 Nf4 Qf5 d7 Qd3 d8Q Rh8 Qc3 b2 Qe8 Rf8 N4d5 b4+ Ka2 b3+ Ka3 Qe1 Rdc1 Kg3 Qb4 Kh2 Qb5 Rc5 Kb4 Qeg3 Rc4 Rg8 Rd4 Rc1 Rc4 Rc3 Kc5 Rf8 Kd6 Rcc2 Ra4 Rc4 Rb4 Rh8 Rc1 b1Q Qb8 b2 Rb7 Qa1 Rf1 b1B Rf5 Bc2 Rg5 Ne6 Rg7 Rf8 Rg8 Neg7 Rd7 Qb1 Qb2 Rb4 Rc7 Rb8 Rb7 Rf7 Nd7 Rf4 Nf6 Rc4 Nf1+
1nR2bkB/P2R1r1B/QN1rN2P/3r1n1K/q2rb1R1/2q5/1qPqQ3/3nb3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 f4 g5 a4 e5 h4 b5 a5 d5 h5 g3 Kf3 d3 Kg4 e4 h6 e3 a6 g2 a7 e2 Na3 e1B Bd2 d4 Nh3 g1Q+ Kh5 g4 f6 g3 f5 g2 Be2 b3 Kg4 b4 Bf4 b2 Bg3 b1R Bh4 d2 Nc4 b3 Nb6 d3 Nc4 b2 Na5 Rh7 Ra4 Qgd4+ Nf4 g1Q+ Kh5 Bb7 Ne6 Be4 Nc4 Qg3 Nb6 Ne7 Rf1 Kg8 f7+ Kh8 f6 Nf5 Bf3 Qb4 Qe2 d1N Bg2 d2 Rf4 Rc1 Rg4 b1Q Bf1 Qb5 Rd4 Qc3 Rd7 Qa4 Bf2 Qbb5 Bd4 Qbb2 Qa6 Ra1 Bd3 Ra3 Be5 Rb3 Bd4 Rb5 Be5 Rd5 Bd4 Bd6 Be5 Rg7 f8R+ Kh7 Rg8 Bf8 f7 Rg6 Bh8 Rd4 Nf4 Rgd6 Ne6 Nde3 Bb5 d1R Bd3 R4d5 Bc4 R1d4 Bd3 Be7 f8Q Nd1 Nc4 Qda5 Qe8 Qd2 Nb6 Qac3 Ng7 Bf8 Qe5 Be7 Rc8 Bf8 Qh2 Kg8 Qe2 Nc6 Rcc7 Re8 Rc8 Re7 Ne6+ Rg7 Qg2 Nb8 Qe2 Bg2 Ng5 Rf7 Be4 Nfe3 Bg6 Nf5 Ne6 Be4 Bh7+
n1K1Qrn1/R2P2q1/4B2P/2nP1r2/nk1NN2b/2n2R2/1b2b2B/nR2bQ1r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 Kd6 h4 Kc5 e4 f5 a5 g5 h5 b5 d3 g3+ Kf3 b3 e5 g2 e6 g4+ Kf2 f3 Kg3 f4+ Kh2 f2 d4+ Kb4 a6 c5 e7 f3 Kg3 b2 Kf4 g3 Ke5 c4 e8R c3 a7 c2 d6 Qc7 d5 Be7 Nd2 b1N Ra5 Nc3 Ra2 Nd7+ Ke6 Ba6 Rc8 Bh4 Ne4 Nc5+ Ke5 Qg7+ Nf6 N3a4 Bh6 c1N d7 N1b3 Kd6 Na1 Bd3 f1R Kc7 f2 Ne2 g1B Rd2 g2 Rb8 Bh2+ Kd8 g1B Nd4 Be5 Nb3 Bb2 Qf3 Bh2 Bg6 B2g3 Rh3 Rh1 Be8 f1N Bf7 Ne3 Qf1 Be1 Nd4 Nc4 Rf3 Ncb6 Bf4 Rh6 Bd6 Rg6 h6 Rg5 Be6 Rf5 Rc8 Rb8 Bh2 Na8 Rc2 Ka5 Rc4 b4 Rc1 b3 Rd1 Be2 Rb1 Rb6 Rc7 Kb4 Kc8 Rd6 Bf7 Rb6 Ne4 Rbf6 Qf2 Ba3 Be6 b2 Qf1 Rf7 Rc1 b1N Rd1 Nbc3 Rc1 Bb5 Rb1+ Bb2 Rb7 Nc7 a8Q R7f6 Qa7 Na8 Qb8 Rf7 Qe5 R7f6 Ra7 Be2 Qg3 Rf7 Qg6 Rf8+ Qe8
KQ4R1/R3q1k1/NBnqb1n1/N2b2qP/2b3PP/1b1q4/r2R2Q1/rBb3b1 b - - 0 1 illegal: Other
2b2qrR/Bnbq4/1nBP4/N1rq3r/PQnk1R1Q/3n2PN/3q1r2/1N4K1 b - - 0 1 illegal: No possible last move, all moves rejected
r2RR1rB/Qr1PQ2K/2b2q1P/nbNB1Nqq/2b4n/8/BrkbPq2/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Ke7 h4 Kf6 d4 c5 a4 b5 d6 g5 d7 b3 a5 f3 Ke3 g3 Ke4 b4 d5 g2 a6 c4 a7 f2 h5 c3 d6 b2 h6 c2 Qd3 g4 Kf4 b3 Ra3 g3 Qe3 Qa5 d8Q+ Ne7 d7 Ba6 Bd2 c1Q Qe4 Bc4 Qd3 Nc6 Be3 Rg8 Qb6 Qh5 Qd2 Ng6+ Ke4 Nh4 Nc3 b1B+ Kf4 b2 Qa5 Bb4 Rh2 Bbd3 Na2 b1R Qc2 Rb2 Nf3 g1Q Rh3 g2 Nd4 Bd2 Nf5 Qe1 Qc5 Na5 Nc1 Rgb8 Qb1 R8b7 Nb3 Ke6 Qb6+ Kd5 Nc5 Bb5 Rg3 Kc4 Rg8 f6 Ra4+ Kc3 Re8 Bdc4 Qe4 Qc1 Qe5+ Kc2 Qe7 Qh2+ Ke4 g1R Bd4 Rg8 Bg2 f1B Rd8 Qg3 Ra3 Qge1 Re3 Qf2 Bf3 Bg2 Bc3 Rab8 a8B Bh1 Qa7 Qcg1 Kd4 Qgg5 Bd5 Bg2 Be6 Bgc6 Bd5 Rc8 Ke4 Rcb8 Ng3 f5+ Ke5 f4+ Nf5 Bd3 Ba2 f3 Ke6 Rc8 Bh8 Bdc4+ Ke5 Qe1 Re4 f2 Re3 f1Q Re4 Qgf4+ Kf6 Qef2 Re5 Re8 Kg7 Qfg5+ Kh7 Rg8 Ng7 Qff6 Nf5 Qf2 Re3 Rb6 Bb7 Ra8 Re6 Be4 Bd5 Rb7 Qf8 Bf3 Ree8 Bg2 Qe7 Bh1 Bf7 Bhc6 Bd5
1RnbB1rn/nPP4K/q7/4b3/b6Q/q1N3Qq/P1rk1n2/B1qBbN1R b - - 0 1 illegal: No proof kernel
4n1N1/1bQ1r3/6rR/1p1rn1rk/1PB2B2/R1QPq2b/1Pr1nqR1/3bN2K b - - 0 1 illegal: No possible last move, all moves rejected
1Bn4b/1R4QK/N3n1rp/2N1bP2/r2k2P1/b1B1qRqb/b4n1P/1Q1r3B b - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 fxe4 f5 g6 Qf3 g5 Qf4 gxf4 Kf2 Kf7 b4 Kf6 g4 Ke5 c4 a5 c5 d5 b6 h6 b5 a4 c6 e3+ Kf3 e2 b7 e1B c7 d3 b6 d2 Ba3 d1N Nd2 d4 Rc1 d3 Rb1 Be6 c8Q Nd7 b8B+ Qc7 b7 Ba2 Bd6+ Kd4 Bg2 e5 Rb5 a3 Nf1 d2 Ng3 e4+ Ke2 f3+ Kf1 f2 Bb4 e3 Nh3 Ra4 Ne4 Ne7 Nc5 Qg3 Na6 Nc5 Ng5 Rg8 Qc7 Rg6 Ne4 Ne6 Nec5 Nc8 Ke2 Bd6 Rf1 Be5 Be4 Bb3 Bf3 a2 Qg7 a1B Bh1 Ba2 Ba5 Bb2 Rb3 Ba3 Rb6 Qh4 Kf3 e2 Kg2 Qg5 Kh3 Qe3+ Kh4 Qg3+ Kh5 Qe3 Rg1 f1B Rg3 Nf2 Rf3 d1R Rb5 Bh3 Bc3+ Kd5 Rb3 Bd2 Rb2 e1Q Qc7 Bg3 Bf6 Nd3 Ba7 Bc3 b8Q Rg7 Qb5 Q1g1 Bb8 Nf2 Qd3+ Bd4 Rb7 Bd6 Qf7 Qg3 Qb1 Rg8 Bh8 Bg7 Kg6 Bgb2+ Kh7 Rg6 Bf6 Ba1 Bd8 Bh8 Qg7 Be5 Ba5 Kd4 Bc3+
n4q2/N2q4/B3RQP1/rQq1b3/q1kq2P1/1prb1b1R/N1P1r3/1K2BQn1 b - - 0 1 illegal: No possible last move, all moves rejected
1r2B3/2k1NN2/3qRpbP/2q1RPQ1/nn2rnBQ/1n3K1n/2rP1b2/q3R3 b - - 0 1 legal: proof: g4 b5 f4 d5 c4 dxc4 a4 h5 axb5 hxg4 b3 Qd7 Bb2 Qd8 f5 e5 Bd4 Kd7 Be3 Ke8 Bf4 exf4 Kf2 Kd7 h4 g5 e4 c5 b6 a5 h5 a4 h6 f6 e5 g3+ Kf3 a3 b4 c3 b5 c4 b7 c2 b6 c1R Bh3 c3 Qe2 c2 Qe1 a2 Kg4 f3 Rh2 f2 Na3 f1N Nb5 g2 Nc7 Na6 b8Q Nc5 b7 Ng3 Kf3 g4+ Kf2 Ne7 Qf1 Nd5 Qd3 Nh5 Qe2 g3+ Kf3 Nb4 Qc4 Ra4 Ne6 Nf4 Ne2 g1Q Rf2 g2 Ng5 Rg8 Qa7 Kc7 e6 Qd6 e7 Be6 e8B Bf7 Nd4 Bg6 Nf7 Be7 Rb1 a1Q Re2 Bf8 Nc6 Qf2+ Kg4 g1N Re5 Qfd4 Kg3 Q4d5 Bg4 Ngh3 Qe4 Qdd4 Kf3 Be7 Bd7 Rb8 Be8 Qe6 Qd3 Rc8 Qf1 Na2 Qe1 Rb4 Qe2 Na4 Qe1 Bc5 Ne7 Qa6 Re6 Qad6 Qh4 Qg1 Qg5 Re4 Rb3 Nb4 Ra3 Qgd4 Re3 Q4d5 Re1 Bg1 Qf2 Ra8 Qg3 Bf2 b8R Qdd4 Rb5 Rb8 Rd5 Q4c5 Re3 Rb1 Re2 c1N Rde5 Rb2 Re1 Nb3 Q3h4 Ra2 Rc1 Rc2 Re1
N1R1BNq1/2b2nN1/3PK1PP/Bk5Q/1qnpbrn1/n1Q4b/Rr6/3r3n b - - 0 1 illegal: No possible last move
Kb2q3/2B1rbb1/nbP4R/2rkb3/2N2n2/1n1BP1P1/RqrpNR2/2QQ4 b - - 0 1 illegal: No proof kernel
n1R5/nb1Q1k2/rP2b2n/Q2p4/BB3Nrq/1r3PR1/2b2P1b/K1Q1qbN1 b - - 0 1 legal: proof: d4 b5 h4 c5 a4 cxd4 h5 bxa4 h6 f5 Rh3 f4 Rh2 f3 exf3 gxh6 Rh4 h5 Rh1 h4 Kd2 d5 g4 a5 b4 h5 c4 e5 Kc2 h3 Kb2 a3+ Ka2 h4 b5 h2 c5 h3 g5 a4 g6 e4 b6 d3 g7 e3 c6 e2 c7 e1Q Nd2 Kf7 Ne4 d2 Qc2 d1B Qb2 Rh4 Qe2 Bd6 Bd2 Bc2 Qe3 Nc6 Bb4 Na7 Ne2 Bb7 c8Q Rg4 N4c3 Qh4 Ng1 Nh6 Rc1 Be5 Ka1 a2 Kb2 a1N Rb1 a3+ Ka2 Nb3 Qd2 Nd4 Rb3 Ndb5 Qg5 Nc7 Nge2 Bd6 Rg1 h1B Qd2 h2 Nf4 Bg2 Bb5 h1B Ba4 Bf1 Qc1 Bhg2 Nce2 Bh3 Ka1 a2 Rc3 Be5 Qd8 Rc8 Rg2 Na8 Rg3 Rc5 Ng1 Rb5 Qc8 Bd6 Qd8 Bb8 Rc8 Bc7 Kb2 a1R Qd6 Ra3 Qc6 Rb3+ Ka1 Ra5 Qc5 Ra6 g8Q+ Kf6 Qd8+ Kf7 Qa5 Bb8 Nh5 Bc7 Rg2 Bh2 Nf4 Rg5 Rg3 Be6 Qd6 Rg4 Qd7+
6B1/2R3KQ/RPQ5/3prNbN/1nq1q3/1r1P2PN/b1rb2rn/n1kBr3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ba3 exf4 axb5 c5 b6 Nh6 b5 Ng8 Bb4 cxb4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 c4 h5 e4 a5 c5 f3 d3 f2 c6 h3 c7 h2 b7 b3 b6 b2 Qb3 f4 Ra3 f3 Be2 f1N Qd1 a4 Ra2 a3 Nd2 b1R Nc4 h4 Na5 h3 Rc2 f2 Nb3 a2 Bf3 a1B+ Nd4 Ra5+ Rc5 Nf6 Bg4 Rb3 Rb5 Ne3 Rc5 f1R Qb1 Bc3 Bf3 Rg8 Qe1 Bd2 Qc1 Nc2 Qa3 Rf2 Be2 Na6 b8N Nab4 Bd1 Be7 Nf5 Na1 Qb2 Qf8 Qb1 Qf7 Qc1 Ba6 c8Q Qc4 Qc7 Bb7 Qc3 Bd5 Qb7 Re2 Rc7 Ra2 Qc6 Rc2 Qb2 Re8 g3 Rg2 Qa2 Be6 Qa5 Bd8 Qa7 Ng4+ Kd6 Kh5 e5 B8g5 Qab7 Bg8 e6 Bf7 e7 Bd5 Ne2 Bf7 Rf1 h1Q Ng1 h2 Nh3 Bd5 Rf2 Qe1 Re2 h1R Re5 Bf7 Ra5 Qee4 Ra6 Re1 Qa7 Kg6 Qab7 Kf6 Qa7 Nh2 Qab7 Rc8 e8B Bg8 Bf7 Re8 Ng7 Re5 Nh5+ Kf5 Qa7 Ree2 Bd5 Kg4 Be6+ Kf3 Qab7 Bge3 Ke7 Bg5+ Kf8 Ke3 Kg7 Re1 Bf7 Bc3 Be6 Kd2 Bd5 Kc1 Qa7 Bh7 Bg8 Bcd2 Qa4 Bf5 Rc5 d6 Kf8 Rbc3 Qh7 Qa2 Kg7 Be6 Nc6 Bb3 Nd4 d5 Rc7 Bc4 Ra8 Bb3 Qd7 Qa6 Qe6 Qc4 Nf5 Ba2 Qc6 Rb3 Ra6
b3R1R1/1kr4N/1P1r3P/1r1bbQ2/4q2p/1r1Q1nNq/BP4N1/1nnK2Br b - - 0 1 illegal: No proof kernel
1r4nr/N1BBQrr1/1P3RPq/KQN5/2RQ2n1/pb1r3q/4qkP1/5bb1 b - - 0 1 illegal: No possible last move
RrR5/Q2K3P/3n3q/2k1P1BN/3N2np/bqrbRb1P/1r5B/Q2qr1r1 b - - 0 1 illegal: No possible last move
r2Nr3/2b2Kp1/BBQr2RB/1q4r1/P3nPnP/1n3kq1/1rN1b2R/3bQ3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 a4 Kf4 h4 c5+ Kc4 e5 d4+ e3 f3 b5+ Kb3 c4+ Kb2 e4 d6 c3+ Kb3 c2 d5 g3 d7 g2 d6 Qb6 d8Q Na6 d7 Nh6 Bb2 c1N+ Kc2 b3+ Kc3 e2 Qe7 e1Q+ Nd2 e3 d8B e2 Rh3 b4+ Kc4 Bg4 Kd5 Nc5 Bf6 b2 Qb7 b1R Bd4 b3 B8f6 b2 Qd7 Qb5 Nb3 Bd6 Rh2 Bc7 Qc6 Qg3 Na5 e1R Nb7 N1b3 Nd8 Ree8 Qe1 Ne4+ Bc5 Bh5 Bd3 Ng4 Ne2+ Kf5 f4 g1R Ra2 Rh6 Bg5 Rg6 Bh6 Rg5 Qb4 Rgd1 Qe1 Rd2 Rg2 Rbd1 Rh2 b1B Ra3 Rb2 Ra1 Ne5 Nd4+ Kg4 Nc2 Kf3 Ra3 Rg8 Ke6 Ng4 Bf1 Rd6+ Ke7 Ba2 Bb6 Bb1 Nb4 Bd3 Nc2 Be2 Ra2 Rgg6 Kf7 Re8 Ra1 Qd3 Rd1 Qb5 Rd5 Bd1 Re5 Be2 Re6 Rg5+ Rg6 Bd1 Qd2 Qb4 Bg1 Nf2 Ne6 Kg4 Ba6 Qb5 Nc5 Kf3 Qa5 Ke2 Nb7 Bf3 Nd8 Bg4 Nd4+ Ke3 Qb4 Bge2 Nc2+ Kf3 Qe1 Ng4 Bb6
3Q2br/1rPn3q/RNk1Nn2/3P2q1/K2b2RP/B2Qq1r1/BqRp4/1nq5 b - - 0 1 illegal: No possible last move, all moves rejected
6n1/2P2nKN/3p3n/1R1rn1bb/P4rrq/qP1bQ1N1/2kn1Q1B/R2N3B b - - 0 1 illegal: No proof kernel
1rR1r1qn/2PKnQ2/N1p1r2R/1B1Pq3/2Pn1r2/2bBb3/2rQ2R1/2Nb2k1 b - - 0 1 illegal: No proof kernel
1B1r1rN1/1kP1P1K1/B5n1/q1b1R1q1/2p1q1Rb/PB1b2Qq/rQ1N4/q5n1 b - - 0 1 illegal: No proof kernel
rnnk2q1/1P4q1/b4R2/3r2bK/BQ1PQ1Rb/r5Bp/N3P1n1/N3b1bN b - - 0 1 legal: proof: f4 d5 h4 g5 a4 gxh4 c4 dxc4 f5 b5 axb5 e6 Ra5 exf5 Ra1 f4 Kf2 f5 Kf3 a5 b4 h5 d4 c5 g4 c3 g5 c2 g6 h3 b6 a4 b7 a3 g7 h4 b5 a2 b6 h2 Bh3 c4 Be3 c1B Bd2 c3 Bg4 c2 Qe1 h3 Be3 Ne7 g8N Ra3 Kf2 f3 Kg3 f2 Qb4 f1R Nh6 f4+ Kh4 f3 Qd6 f2 Bf4 Be3 Nf3 c1B Rg1 h1Q Kh5 Qg2 Qb4 Qc7 Bg3 Kd8 Nfd2 Bg7 Ne4 Bf6 Nc5 Bh4 Nc3 Beg5 Bf5 Bce3 Bd7 Qe5 Rb1 a1B Na2 Bc3 Nb3 Qg7 Na1 Be1 Ba4 Qd5 Rc1 Qdg8 Rg2 Rg1 Rc6 f1N Rf6 B3f2 Qb1 Ne3 Qh7 Rf1 Ng4 Bg1 Nf2 Rb3 Bd6 Ra3 Rg4 Ng2 Nh1 Rf5 Bg3 Rd5 Bf2 Qe6 Bg3 Rf8 Qe4 Qeg8 Qf4 Be6 Qe3 Nc8 Qe4 Bd7 Qe5 Bb5 Qe4 Nc6 b8Q Ba6 Qbf4 Nb8 Qd2 Rf7 Qa5 Ra7 Qb4 Ra8 b7
b1b2K2/bPp2n2/Q1Nr2r1/4R2P/1rbNnq2/N3q3/PQ6/b2RBBqk b - - 0 1 illegal: No proof kernel
3q4/1b1B2n1/4QN1b/2q2nnP/1kb1p1R1/2N1BQq1/q2r1PrP/1r1NK1R1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 gxh5 fxe4 b4 axb4 Na3 c5 Nb1 cxd4 a4 d5 c4 Kd7 c5 Kc6 a5 e5 a6 g5 a7 b5 Na3 e3 Bc4 e2 Qb3 d3 Nc2 g4 Na3 d4 Qb1 b3 Bh6 g3 Qd1 e4 Bg7 b2 Rc1 b1Q Bf6 g2 Qb3 b4 Qd1 b3 Nc2 b2 Bg7 Ne7 Na3 Nd7 Bh6 Nf6 Nh3 g1Q+ Kd2 e1N Qf3 Qa2 Be6 b1R+ Rc2 Qg3 Be3 Ne8 Bg4 Nf5 Rb2 Bb7 Ng1 Bh6 Nb5 Neg7 Ne2 Rg8 Nec3 Qf8 Nd1 Rd8 a8Q Kd5 c6 Kc5 Rc2+ Kb4 c7 Qc5 c8N Rd6 Ne7 Rd5 Nb2 Rdd8 Rc1 Rd7 Kd1 d2 Ke2 d1Q+ Kf1 d3 Qe8 d2 Rg1 Rd4 Nc3 Rd6 Ng6 Rd7 Ne5 Rd3 Qe6 Rd5 Qe2 Rd6 Nd7 Nf3+ Qe1 Ng5 Nf6 Qdf3 Qe2 d1B Bh3 Rd2 Ke1 Bb3 Nbd1 Bc4 Bg4 Qff4 Qf3 Qfc7 Rg2 Qd8 Bh3 Qgd6 Rg4 Qg3 Bf1 Bb3 Bb5 Bc4 Bd7 Qf4 Rg3 Nh3 Nb2 Ne8 Rd1 Rg4 Rg2 Ng5 Rc1 Rd3 Ke2 Neg7 Rcg1 Qfe5 Bc1 Rd6+ Ke1 Rd4 Nbd1 Qec7 Bf4 Rd2 Rg3 Q7e5 Be3 Qed6 Rh3 Rg2 Rh4 Qg3 Rg4
1N3qB1/3B2qr/2n1KQ2/1n1pP3/2N1brR1/bnP1P2Q/br4R1/Br4kq b - - 0 1 illegal: No possible last move, all moves rejected
7N/1QQb1qqr/5r1R/1PRn4/1q2n1PR/1Bp1B2P/1rk1bNbn/4b1K1 b - - 0 1 illegal: No proof kernel
r1n1Nk2/Rq2br1b/2B2qp1/QR4P1/3P1P2/1qBrb1n1/q2R4/1QNnK3 b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 h5 axb5 d5 g5 dxc4 Qg4 hxg4 d4 a5 h4 e5 b4 c5 f4 c3 h5 a4 b6 a3 b7 c4 h6 a2 h7 e3 b5 c2 b6 e2 Rh6 g3 Rh1 e4 Rh3 g2 Be3 c1Q+ Kf2 e1N Ne2 g1R Rf3 c3 Nd2 c2 Rg3 Nd7 b8Q Qb1 b7 c1B Nc3 Nd3+ Ke2 Qb3 Na4 Nf2 Qd6 Qf6 b8Q Be7 Rg4 Nh6 Qdc7 Nd1 Nc5 Nb6 Nf3 Rg3 Nd7 Nf5 Bg2 Rf8 Ne1 Rf7 Bd2 Rd3 Bc3 e3 Bc6 g6 Rb1 a1Q Rg2 Qaa2+ Kf1 Bd2 Qca7 Bc1 Qa5 Bd2 Re2 Bc1 Rd2 e2+ Kg2 Ng3 h8R+ Rf8 Rh7 Rf7 Qba7 Ba6 Qb8+ Nc8 Rbb2 Qb7 Rb3 Bc4 Rb5 Qg7 Nf6+ Kf8 Ne8 Qf6 Nc2 e1Q Na1 Qee6 Nb3 Ne4 Kf1 Qd5 Rb6 Ng3+ Ke1 Qf3 Rb5 Qd5 Rdh2 Be3 Nc1 Qb3 Rg7 Qg2 Rgh7 Qga2 Rg2 Rg7 Rd2 Bg8 Qd6 Rf7 Qdb4 Qba4 Qb1 Q2b3 Rhh2 Bh7 Ra2 Qaa3 Rhd2 Qab2 Qb4 Q2c2 Ra7 Qca2 Qa5
1QRr1nBB/b1N1K1n1/b1qn1P2/P1q1n1Q1/2q2NP1/2r1Q2b/r3p3/2k3R1 b - - 0 1 illegal: No possible last move
2nnrN1N/2K2nrb/b1pQ1R1q/1P1PQq2/5R2/P1k3b1/2B3rB/2Nrq3 b - - 0 1 illegal: No proof kernel
bB2n1Qr/3N4/PR2Nqqr/3Qb1R1/QKb4r/P2qp3/3nPn2/B1k3r1 b - - 0 1 legal: proof: d4 a5 g4 h5 b4 hxg4 bxa5 c5 Nd2 cxd4 Rb1 f5 Bg2 f4 Ra1 f3 Nb1 fxg2 Kd2 Kf7 f4 Kg6 h4 Kf5 c4 Ke4 a3 b5 f5 e5 a6 d5 f6 g5 f7 b4 c5 g3 h5 d3 h6 g4 h7 d4 c6 b3 c7 b2 Rh6 Bd6 f8B Be6 c8Q Bc4 Qb7+ Nc6 Qb6 Na5 Bg7 Nf6 Qb5 Ne8 Nf3 g1Q Rf6 g2 Qc2 g3 Rf7 Qf6 Ne1 Nb3+ Kd1 Nd2 Qba4 Ke3 Qc6 e4 Qb6 Be5 Nc3 b1B Nb5 Rb8 Qc5 Rb6 Rc7 Bba2 Re7 Bd5 Qb3 Ba8 Qa4 Bc4 Nc7 Qg5 Bb2 Nf3 Bf8 d2 Kc2 d1N Qd5 d3+ Kc1 d2+ Kc2 Rh6 Bc3 Qf6 Ne6 Nf2 Ra7 Rg8 h8Q d1Q+ Kb2 Qd4 Rb7 Qd1 Qg7 Rgh8 Bd6 Qd4 Qf8 Qd1 Bd4+ Kd2 Rb6 e3 Qf7 Rg8 Bb8 Rgh8 Rc1 Qc2+ Ka1 Qe4 Nd3 Qd1 Kb2 Qeg6 Ndc5 Qdc2+ Ka1 Qce4 Rh1 Qd3 Rh5 Kc1 Rg5 Nd2 Bc3 g1R Qf8 g2 Qg8 Rd1 Nd7 Rdh1 Bd4 Bb5 Ka2 g1R Ba1 R1h4 Bc3 Nb1 Kb3 Bc4+ Kb4 Nd2 Ba1
B1nqbR1b/r3B2q/pNQQQ1rN/6bn/PKn4R/6q1/b1PP2k1/3r4 b - - 0 1 legal: proof: f4 c5 e4 g5 h4 gxh4 b4 d6 e5 dxe5 bxc5 exf4 Rh2 f3 Rh3 Be6 Rh1 Bc8 a4 Kd7 g4 Ke6 g5 Kd5 g6 Ke4 c6 f5 g7 e5 c7 b5 Bh3 h5 Bf1 f4 Bg2 b4 Rh3 a6 Bf1 b3 Ba3 f2+ Ke2 b2 Be7 Nd7 Bb4 Nb6 Bc3 Nc4 Bd4 Rh6 Rh1 h3 Nf3 h2 Qc1 h4 Bb6 h3 Bg2 f1N Nd4+ f3+ Ke1 Bd7 c8Q Ng3 Bc7 Rg6 Qb8 Be8 Qd1 Ra7 Ba5 Nh5 Qd6 Ne7 g8Q Bg7 Ne2 Nc8 Ra2 Bh8 Na3 b1B Ra1 Ba2 Nd4 Kf4 Qc1 Kg3 Qge6 f2+ Ke2 f1R Kd3 Rd1 Kc3 Kf2 Bf3 e4 Bb4 e3 Ba8 e2 Bc5 e1B Kb4 Rg1 Qc6 Rg6 Be7 Kg3 Rf1 h1Q Rf8 Qf3 Nf5+ Kg2 Nh6 h2 Qb2 h1Q Qd4 Qh2 Qdd6 Bh4 Rb1 Bg5 Rb3 Qd5 Rh3 Qf3 Rh4 Qh1 Nb1 Qh3 Nc3 Qe4 Nd5 Qg3 Qdc5 Qf5 Qc6d6 Qf7 Qcc6 Qh7 Nb6+
2qN3B/2r2P1K/1qB4n/qpbrNR2/4PQ2/5bQn/1P4Rr/1b1Qn1kr b - - 0 1 illegal: No possible last move, all moves rejected
q1bRq1n1/2KPRq2/4N1rP/1qn5/2kQN3/1bBnRB1P/rr5p/b5Q1 b - - 0 1 illegal: No proof kernel
KR1BQ3/1PP1qrrn/n1b4r/1R1P4/2b2r1N/bB1k4/qpn1q3/N2Q2N1 b - - 0 1 illegal: No proof kernel
8/R2KbnPN/rR6/Q3b2k/rqb3B1/2P1nN1r/bp1Pb2b/1NB1n2Q b - - 0 1 illegal: No proof kernel
b1n3RB/B1n2pKR/1Q1n3Q/P1rq4/k4bn1/N2P1P2/bnR2nNr/r7 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 c5 Bd3 d5 Bc4 dxe4 Bb3 c4 Kf1 cxb3 Ke2 Na6 Ke1 Nb8 a4 Kd7 Ke2 Kc6 Ke3 b5 Kf4 g5+ Ke5 e3 h4 b2 c4 b3 c5 g4 f3 e2 a5 e1N h6 b4 h5 Kb5 c6 g3 c7 g2 h7 Bb7 c8Q Bh6 Qc3 Nc2 Rh3 Na6 Qc8 Ne3 Qc7 Rc8 Rh2 Ba8 Nh3 g1N Ra3 Ng4+ Kf5 e5 Qc3 e4 Qdc2 e3 Nf2 e2 Ra1 e1N Qe4 Qd5+ Qee5 Nd3 Nd1 Nh3 Ra3 Nhf2 Ra2 Be3 Na3+ Ka4 h6 b1R Rb2 Ra1 Qd4 Bg5 Ra2 b2 Ne3 b1N Rc2 Nb2 d3 Nc3 Ng2 Nb5 Be3 Rc6 Qf4 Nac7 Ba7 Rc3 Qd4 Bc1 Qf4 Nd6+ Kg5 Ne7 Rh1 Rd8 h8R Nec8 h7 Rc4 Kh5 Bd2 Qfg5 Bf4 Qe3 Rg8 Qb6 Rc5 Kh4 Rg6 Rg8 Rh6+ Qh5 b3 h8B Nbd1 Rh2 b2 Rh3 b1B Rh2 Be5 Kg5 Ba2 Qg6 Nb2 Qg7 Rf6 Rh7 Rh6 Qg6 Rh2 Qh5 Ne3 Kh6 Bf4+ Kg7 Neg4 Qh6
5N1b/bP2Qb2/bnbB1RB1/3r2P1/rnb3N1/p1k3n1/1Pr1qNR1/1K4Q1 b - - 0 1 illegal: Other
2R1Rr1r/1PNq1r2/b1Pb4/PN5k/1p1r1nQ1/1K3b1r/rBBB1Q2/1n1n4 b - - 0 1 illegal: No proof kernel
k1bQ2B1/pnP1b1Q1/1rb5/1N1r3r/3r2Nr/RnP1Q3/2n1rP1B/q3R1K1 b - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 g5 h4 gxh4 a4 bxa4 Bd3 f5 Bf1 fxe4 g4 e5 b4 h5 b5 d5 b6 Kd7 g5 Kc6 b7 e3 g6 e2 c3 h3 g7 e4 Rh2 d4 Bf4 a3 Qc2 d3 Bh6 h4 Qb3 a2 Qc4 Nd7 b8Q Ne7 g8Q Nf5 Rh1 h2 Bd2 h3 Qcb3 Nd6 Qb2 Rh5 Qb8b3 Nb7 Qd1 Qa5 Qdc2 Be7 Qa3 Rb8 Bc1 Qa4 Kd2 e1R Qh8 Rd1+ Ke3 d2 Ke2 e3 Nf3 Qa5 Rg1 h1R Qch7 h2 Ne5+ Kc7 c6 Ndc5 Bg2 Nb3 Qc5 Rh4 Kf3 e2 Na3 e1R Q7g7 Re2 Ng4 Rh5 Re1 Qa4 Rb1 a1N Qe3 Nc2 Kg3 Qa6 Bd5 Qa4 Kg2 Qa6 Nc4 Qa1 Nd6 Nd8 Rb2 Rb6 Qee5 Kb8 Nb5+ Ka8 c7+ Nb7 Qd8 Rf1 Ra2 h1B+ Kg3 Bg2 Ra3 Rfh1 Bg8 Bc6 Qe4 R1h4 Kg2 Qa2 Kg1 Qa1 Bb2 Rc1 Qed3 d1R Q3d4 Rb1 Bc1 Rd3 Bh6 Rbd1 Qe3 Rdd5 Bf4 R1d4 Bh2
1Nq1k3/2nQr2n/Rnb3P1/1p2r1Pn/nR1b1Bb1/1P1QN3/5Bb1/R3K1b1 b - - 0 1 illegal: No extended proof kernel
b1n1k3/3Qn2B/rQ1b1r2/3NPNn1/5R1q/P2qn3/Rb1pP2n/1RBn3K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 g5 Kg2 b5 c4 f5 h4 d5 c5 d3 a3 g3 c6 d2 h5 g4 h6 f4 h7 b3 c7 b4 Rh3 f3+ Kh1 g2+ Kh2 f2 Rh5 b2 Rg5 b3 Nh3 g1N Kh1 g3 Rf5 g2+ Kh2 d4 Ra2 d3 Rf6 Ra6 Rb6 Bb7 c8Q Ne7 Qg4 Ba8 Ra1 Nf3+ Kg3 g1B Kg2 Nbc6 Ra2 Ng5 Qe6 Na7+ Rb7 Nc8 Qe1 d1N Qb4 d2 Qbb6 Ne3+ Kh1 Qd3 Nc3 b1Q Qd5 b2 Bg2 f1N Nd1 Nh2 Be4 Qbc2 Rb8 b1N Nf4 Qcc4 Qde6 Rg8 h8R Nc3 Rh4 Rg6 Nd5 Rf6 Bh7 Qf4 Qed6 Qg3 Rf4 Qh4 Nb2 Ncd1 Nc4 Ng2 Qe6 Bd4 Nce3 Bb2 Nf5 Nge3 Qa7 Bd4 Rb1 Bb2 Qd6 Ng8 Qdc5 Bd6 Qcb6 Nge7 Qd7+
4Qbn1/nrr2n2/Nq5p/P1R1PQ2/1r1r1RbK/3bB3/B1P1k2n/N2N1n2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kf2 Ke7 a4 Ke6 e4 Ke5 g4 b5 g6 d5 g7 f5 g5 b3 a5 h6 g6 d3 Ra2 Kd4 e5 b4 Ra3 b2 Rc3 b3 Bd2 f3 Kg3 f2 Qe1 f4+ Kh2 f3 Kg3 Nc6 Rh2 Rh7 Rh5 Bg4 Nh3 Ra7 Ng5 Qb6 Qc1 Rb7 Bh3 f1N+ Kh4 f2 Ne4 Na7 Bf4 d2 Rc5 d1B Bd2 Bde2 Nbc3 b1R Nd1 b2 Rf5 Bd3 Rf4 Nh2 Bg2 f1N Bh1 Nf6 g8N Rhc7 Ne7 Ng8 g7 Qa6 Ne3 Qb6 Qe1 Rd1 Qf2 b1R Bc1 Rd2 Bg2 Rb4 Nd1+ Ne3 Qf3 Nc4 Qh3 Nd6 Bf1 Nf6 g8Q Nf7 Qg6 Ng8 Qh5 Bb5 Bc4 Ba6 Ba2 Bd3 Nb2 Rd1 Qf1 Rd2 Nc6+ Ke3 Nb8 d4 Qh3+ Ke2 Na6 Bc4 Qg6 d3 Qc6 Rd1 Be3 d2 Qe6 Bd3 Qe8 Rb1 Nd1 Rd4 Qg3 Rbb4 Qh3 Bf3 Qf5 Bg4 Ndf2 d1N Nd2 Bg7 Nb3 Bf8 Bd2 Ne3 Na1 Nef1 Nd1 Nf6 Bc1 Ng8 Be3
1R1rr3/qQ1NbbB1/n2rn1P1/1Rr2Bk1/1Q2KP2/3p3q/Br3r1P/4b1N1 b - - 0 1 illegal: No possible last move, all moves rejected
rB1n3Q/2r5/2qB1NP1/4P3/B2nn1pK/r1kP4/1Qqrb2R/rr3NbR b - - 0 1 illegal: No proof kernel
1K4RR/1n2QqB1/5P1r/2k1P3/1p1rbrPn/bn1Q2r1/N1Bn1NrN/1b6 b - - 0 1 illegal: No proof kernel
1n1q2n1/2RN1r2/1Pkbnpr1/K4PNN/2bP4/Q1rBb3/2R4b/1Q2bBr1 b - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 b5 axb5 e5 d3 g5 Kd2 gxh4 Kc3 e4 Bd2 e3 Kc2 exd2 Kc3 Kd7 f4 a5 g4 h5 e4 c5 b4 f6 e5 a4 d4 h3 g5 h2 b6 h4 g6 h3 e6+ Kc6 e7 a3 e8N a2 g7 Bd6 b7 Rh7 f5 Be6 Nf3 Ra3+ Qb3 d1R Bd3 Rg1 Bc2 Rg6 Re1 h1R Nh4 h2 Re2 Rhg1 Nd2 h1N Nhf3 Ng3 Rc1 Nh5 Ng5 Nf4 Bd3 Bd5 Nde4 Ne6 Rec2 a1B+ Kd2 Bh2 Qb1 Rc3 b5+ Kd7 b6 Kc6 Bf1 Bb2 Bd3 Ba3 Bf1 Ne7 g8B Rf7 Ng7 Bb4 Bh7 Ng8 Nh5 Rh3+ Ke2 c3 Kd1 c4 Nc5 Rhg3 Nd7 Bd6 Ke2 Na6 b8Q Rd3 Rd2 c2 Qa7 Nb8 Qa3 c3 Ke1 Bc4 Rf2 Nh6 Bg8 Rh3 Rd1 c1B Rc2 Be3 Rdc1 Ba2 Ke2 Rhg3 Kd3 Rf3 Rg2 c2 Kc3 Bc4 Rd2 Rfg3 Rg2 Bf2+ Bd3 Be1+ Rd2 Bc7 Kb4 Bd6+ Ka5 Re3 Rd1 c1B Bf1 Rc3 Rc2 Be3 Rdc1 Rh7 Bf7 Ng8 Bd3 Nc7 Be6 Rf7 Bf1 Bb5 Bec4 Ne6 Bcd3 Bc4 Qba1 Ba2 Nc5 Rb3+ Rd2 Kd5 Rc4 Rc3 Qb1 Bb3 Nd7 Ba2 Rc7 Bc4 Ra7 Kc6 Rc2 Bhe5 Rb7 Bh2 Rc7+
1R3Q1k/2KR2np/rQ3rbP/8/B1QrNPbn/bqbB1P2/3n4/2rb1N2 b - - 0 1 illegal: No possible last move, all moves rejected
1b2b3/1Q1Pqn1r/1K6/3qRk1P/4NrRR/r3r1B1/Q1Nr2Pp/n2rq2B b - - 0 1 illegal: Other
1QB2qk1/1nNP1r2/3R1nK1/pN2Q1P1/8/R1bn2n1/1bRPn3/1bB1rq1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 c4 gxh4 f5 d5 cxd5 e6 Nf3 exf5 Ng1 f4 Kf2 f5 Kf3 Kf7 e4 h5 g4 c5 b4 a5 d6 h3 g5 h2 b5 h4 e5 a3 b6 a2 b7 h3 Bb2 c4 Bd4 c3 Bb6 c2 Qc1 Na6 b8R Ra7 Bf2 Nc5 Ne2 Bg7 Be3 Nb7 Qe1 c1N Ng1 Ne2 Bd4 Qf8 Nc3 Nf6 e6+ Kg8 e7 Rh7 Rc1 a1B e8Q Bb2 Nd5 Bh8 Nc7 Rf7 Rc2 Re7 Kf2 f3 Ra8 Bd7 Qb8 f4 Bc5 Bf5 Ba3 Bc3 Bc1 Rf7 Bg2 Ra6 d7 Re6 Ra6 Re4 Kf1 f2 Nf3 Bh7 Rg1 h1N Rd6 h2 Nd4 Bb2 Bf3 Re5 Kg2 f1N Kh3 Nfg3 Kh4 Nf2 Rg2 h1N Ndb5 Nd3 Rh2 Bg6 Rh3 Re3 Bd5 f3 Bc4 f2 Bd5 Nd8 Bb7 f1Q Bc8 Re8 Rd4 Nb7 Rd6 Ng1 Qe6 Bf5 Qd5 Re1 Qc5 N1e2 Qe5 Ngh5 Re3 N5g3 Rf3 Be6 Re3 Ba2 Rf3 Bb1 Re3 Nb4 Ra3 Nd3 Qe6 Ng4 Qe8 Bhc3 Qe5 Nf5+ Kh5 Nf6+ Kg6 Nfg3 Ra1 Ng4 Ra2 Nf6 Ra3
2q4n/1p3rr1/1B1r3P/5krn/K2R4/1Pr1bbr1/2NRBQ1P/2N1NQbq b - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 e5 d4 exf4 b3 cxd4 Qd3 a5 Qh3 a4 Qc3 a3 Qb2 axb2 Kd2 Ke7 a4 Ke6 c4 f5 Kc2 g5 e4 d5 a5 d3+ Kc3 d2 h6 d1Q a6 f3 c5 f2 Kb4 g4 e5 g3 a7 d4 Ra6+ Nc6+ Ka4 d3 Nh3 d2 Bg2 f1R Kb5 f4 Ra2 f3 Ng1 f2 Nf3 Kf5 e6 Nf6 e7 Rh7 e8N Rg1 Na3 f1R Ne1 b1R Ka4 Ne7 c6 Rg7 c7 Nh5 Nac2 Ng6 Bf3 g2 Be2 Nh8 Nf6 Bc5 Ne4 Be3 Nc3 Rf2 Ba3 Rc1 Bc5 Rf3 Bb6 Rfg3 Rb2 Rf1 Na2 g1B Na1 Rc6 Nc1 Rc3 Nac2 Be6 Ra2 Bd5 c8Q+ Qd7+ Qc6 Rag8 a8Q Bf3 Qa6 Qc8 Qcc4 R7g5 Qd4 R8g7 Qh4 Rh3 Qf2 Rhg3 Ncd3 Qb1 Nc1 d1R Na1 Rd6 Rd2 Bd4 Nac2 Be3 Ned3 Qe6 Qg2 Kg6 Na2 Bd5 Rd1 Bgf2 Bf3 Qc1 Qc4 Qd2 Nac1 Qe1 Qf4 Qc8 Be2 Bc5 Qff3 Bfd4 Qe3 Rff7 Rf1 Be4 Rf4 Bf3 Rd2 Qh1 Rh4 Kf6 Qf1 Kf5 Qeg1 Bf2 Nde1 Bce3 Qgg2 Bg1 Qgf2 Rc5 Rg4 Rc3 Rgd4
Q2N1k2/p4Rrr/n1nP2QB/1Bn5/b1Pb3n/2Nn3R/1P1q3n/2Nq2bK b - - 0 1 illegal: No proof kernel
1N6/Q3bRKN/B2qbP2/3qnbnB/Pnkrpb2/BRb1QP2/8/3nr3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 e5 Ke4 d5+ Kd3 b5 c4 g5 h4 g3 a4 g4 h5 g2 h6 b3 c5 b2 c6 g3 f6 Ke6 h7 b4 f3 b3 c7 Na6 Bg5 Be7 Qe1 Nh6 Nd2 b1N Bh4 b2 Ne2 g1B Qc1 g2 Bg5 Ng4 Nc4 Nc3 Bh6 b1B+ Qc2 Be3 Ng1 Qd6 Bg5 Rd8 h8Q Ne4 Nb6 Bf4 Nh3 g1B Nd7 Bf2 Bh6 Be1 Qg7 Bc3 Nb8 Ng5 Ra3 Rd7 Rb3 Nb4+ Ke2 Rd8 Qc1 Bf5 Qe3 e4 Qh7 Ne5 Bf8 d3+ Kf2 d2 Ba6 Bd7 c8B d4 Ke2 Kd5 Qf7+ Ne6 Ng5 d1N Nh7 Kc5 Rh6 Ng5 Rg6 Qd5 Rg7 Bde6 Bd7 Ra7 Bdb5 Rb7 Be8 Bd6 Qd7 Be7 Rf7 Rb5 Qa7+ Kc4 Rg7 Qd6 Bh5 Rd7 Rf7 d3+ Kf1 d2 Kg1 Nb2 Kg2 d1Q Kf2 Q1d5 Kg2 Bh2 Kf2 Nd1+ Kg2 Bg1 Kg3 Bh2+ Kh4 Rd8 Bg4 Bf4 Kh5 Qd7 Kh6 Q5d6 Bc8 Rd5 Bb7 Rd4 Bh5 Qb5 Kg7 Qbd5 Qe1 Rd2 Qee3 Re2 Bc8 Re1 Ba6+ Qb5 Qd7 Qd2 Qg1 Nbd3 Qe8 Beb4 Bc5 Rd5 Be3 Be7 Qd7 Nb4 Qa7 Qd4 Bd2 Qc5 Bc1 Rd4 Ba3 Qd6 Bc8 Qbc6 Qe3 Qcd5 Ba6+
rn1k1q2/1R2R2n/1p1PP3/bRP4n/2r1n3/1rq5/b1Q2Qn1/BN1K1BrN b - - 0 1 illegal: No proof kernel
2R2K2/5Q1Q/P1p3Q1/2n2qBr/2bb2B1/NkbP2r1/rPb2nqR/1Nr1b3 b - - 0 1 illegal: No proof kernel
n3BB2/q4np1/nqr3b1/3k2bR/Q1RNQq2/RPr1P3/NPn1K3/qq6 b - - 0 1 legal: proof: f4 b5 g4 c5 d4 cxd4 g5 e5 g6 exf4 Nh3 b4 Ng1 b3 axb3 hxg6 Ra6 g5 Ra1 g4 c4 Ke7 h4 Kd6 c5+ Kd5 h5 f5 c6 a5 c7 f3 h6 f2+ Kd2 a4 h7 a3 Rh6 d3 Nf3 f4 Ng5 a2 Rg6 f3 Qc2 g3 Kd1 d2 Na3 g2 Nc4 g1Q Qb1 Nh6 Re6 Nf7 Nh3 Ra6 Ne5 Be7 Rf6 Rc6 Nd3 Na6 Re6 Bg5 Ne1 d6 Re7 Bf5 c8R Qb6 Rcc7 Bg6 Nc2 Rc8 h8Q Rc3 Rc4 Rc6 Ne1 Qa7 Bg2 f1N Nd3 Qgb6 Ree4 f2 e3 Ng3 Rg4+ Ne4 Rh4 Nc7 Ng1 Na8 Nf3 Nc5 Qe8 Na6 Rh5 f1Q+ Nde1 Qg1 Ke2 Qh2 Nd3 Qh4 Bh3 Qf4 Bd7 d1Q+ Kf2 Qc5 Bd2 Qcb6 Nc1 Qc2 Ke2 Qce4 Qc2 Qef5 Rb1 a1N Nd4 Q5e4 Qd3 Nc2 Ra1 Qh1 Na2 Qb1 Qb8 Ke5 Qc8 d5 Be8 Kd6 Qg4 Ke5 Nb5 d4 Be1 Kd5 Bg3 Qf5 Bd6 Qf4 Bf8 Qfc7 Nc1 Qf4 Ra3 Qa1 Na2 Qb1 Qd1 Qa1 Qb1 d3+ Kd1 d2 Nd4 Qfc7 Ke2 d1Q+ Kf2 Qg1+ Ke2 Qf4 Qh4 Ne1 Qd3 Nc2 Qg4 Qgb1 Qd7+ Rd6 Qa4 Rc6 Qe4+
1R1b1q2/4Pq2/1qrnqPp1/B6N/KP1rqb2/R2Q4/Bb3nb1/kQN1R3 b - - 0 1 illegal: No proof kernel
1q1n3K/P2PPb1Q/BrQ2R2/b1R1bqp1/2NBN3/2b2n1k/1n2N3/n1r3n1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 Kd7 a4 c5 e4 b5 h4 f5 d4 g5 h5 b3 a5 f3 Kg3 f4+ Kf2 c4 h6 c3 d6 Ke6 e5 Kf5 h7 b2 d5 b4 d7 g3+ Ke1 Kg4 a6 g2 Kf2 c2 a7 b3 e6 Bd6 e7 Na6 Qe2 Be5 d6 Nh6 Rh5 Nc5 Qd3 Rb8 Qc4 Na4 Qd4 Rb6 Be3 c1B Ne2 g1B+ Ke1 f2+ Kd1 Nf7 Qb4 Bd2 Qe4 Ba5 Qh1 f3 Nbc3 b1N Ng3 b2 Kc2 Nd2 Kd3 b1N Nce2 Nbc3 Rb1 Nb3 Bd4 Na1 Rh6 Nb2+ Ke3 Qe8 d8N Be6 Nb7 Nd8 d7 Bf7 Rc1 Rf8 h8Q Bh2 Ng1 Ne2 Ne4 Bf6 Rc8 Bhe5 Qh7 Bh8 Rf6 Rg8 Nh3 Ng1 Ba6 f1Q Rc5 f2 Nf4 Qb5 Nbd6 f1N+ Kf2 Rf8 Nc4 Nd2 Ke3 Ndf3 Ne2 Rg8 Ned6 Rg6 Ke4 Rh6 Qg2+ Kh4 Kf5 Qg8 Qf2+ Kh3 Ne4 Qf8 Qe3 Rc6 Qb3 Qb8 Qb7 Rb6 Qc6 Rh4 Qg7 Rg4 Qg6 Rg2 Qg8 Rf2 Qg6 Rf1 Qg7 Rc1 Qg8 Be6+ Kg6 Bd5 Kh7 Bf7 Be3 Bec3 Bd4 Bg7 Re6 Be5 Rf6 Qe8 Kg7 Qf8+ Kh8 Qh6+ Qh7 Qh5 Be3 Qh6 Bf2 Qh5 Bh4 Qg6 Be1+ Nh4 Bf2 Qf5 Qg7 Nhf3 Bd4 Nd2 Qg8 Ndf3 Qh7+
2nbnb2/1nQ5/8/br1NR2r/Qq2B1PP/N1pB3K/1q2b2P/k1RrB2n b - - 0 1 illegal: Other
NbqRqR1b/3bR2Q/3q4/1rq1b2N/1P2nPk1/3Bp3/P3nBr1/1KQr4 b - - 0 1 illegal: No proof kernel
2nbn1rN/Qb2k3/1Nr4n/N1RP3r/br1R1q1P/1Qpq3B/1B1P4/3K3b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 h4 f5 a4 c5 e4 g5 e5 b5 e6 g3 e7 g4 a5 g2 a6 g3 a7 c4 Bd3 f3 Qa4 b3 Qa5 b4 Qa6 f4 Ra5 b2 Nh3 g1Q+ Bf1 f2+ Ke2 c3 Rh2 g2 Qb5+ Nc6 Ra1 f3+ Kd1 b3 Qa6 Nh6 Rh1 Bb7 Ra2 Qd6 Ra3 Qf4 Qb5 Rc8 a8Q Bg7 Qa7 Bf6 Qbc5 Rh7 Qa8 Na7 Qe3 Qgh2 Ra2 g1R Ra3 Rg8 Qe4 Qhg3 Bc4 f1N Qc2 f2 Ra4 Nh2 Na3 f1B Ng5 b1B Bb2 Bg2 Nf7 N2g4 Bf1 Qd3 Nh8 Bg5 Re4 Nf6 Rd4 Ba2 Rg1 Bh1 Rg4 Kd7 e8N Rc6 Bg2 Nc8 Nc7 Ne8 Qa7 Bd8 Nc4 Ke7 Na8 Bb1 Nab6 Ba2 Ba1 b2 Na5 Bb3 Bh3 Ba4 Rc4 Nf5 Rc5 Rh5 Qb3 Nh6 Rg5 Qdf5 Rg4 b1R+ Ke2 Rb2 Ke1 Qd3 Kd1 Qd6 Rd4 Qf4 Qc2 Rb3 Bb2 Rb4 Qb3
BR5Q/knr5/2n1N1r1/1Pqb1qB1/2QpPbr1/3q4/KNn1P1R1/nr4R1 b - - 0 1 legal: proof: h4 b5 d4 g5 a4 gxh4 d5 bxa4 f3 e5 d6 e4 fxe4 cxd6 Kd2 d5 Ke1 d4 Kd2 a5 g4 f5 c4 h5 Kc2 d5 b4 Kd7 Kb2 Kc7 b5 Kb7 c5 d3 g5 a3+ Ka2 a4 c6+ Ka7 g6 f4 g7 d4 c7 h3 Nf3 d2 Ne1 f3 Nd3 f2 Qe1 d1Q Bb2 h4 Rg1 h2 Qa5+ Na6 Nd2 h1R Rg3 h3 Nf4 h2 Bc1 Rh7 Rd3 Qe7 Rh3 Be6+ Rb3 Bd5 c8Q Qc5 Kb1 a2+ Kb2 Bd6 Nc4 Ne7 g8R Nc6 Qf5 Qd3 Qe1 Rg1 Ne6 h1R Qf8 Rg4 Rc3 Bf4 Bh3 f1Q Rb1 a1N Ka2 a3 Rg6 Qg3 Qh8 Rc7 Rc2 Rac8 Qb4 Rg8 Be3 Qff3 Rg1 Qff2 Bc1 Qd3 Qb3 Qff3 Nb2 Qf1 Rg5 Rg6 Qc4 Qff3 Rc3 Nc2 Be3 Qf2 Rg2 Rb1 Rg1 Rh4 R5g2 Rhg4 Bd2 Bg3 Bg5 Qf5 Rb3 Bf4 Rb4 Na5 Ra4 Nb7 Ra5 Kb6 Ra4 Nb8 Ra8 Nc6 Re8 Rg3 Bg4 Ka7 Bh5 Rg4 Rb8 Rh6 Bf7 Rg6 Be8 Qd1 Kb3 a2 Bd7 a1N+ Ka2 Qd2 Bc8 Nba5 Bb7 Qd3 Ba8 Nb7 Qh1 Qf3 Qh4 Qd3 Qh8
2nQb3/B2qq3/K4P2/Q2br1N1/3b1k2/P1rBr1R1/2P1qRp1/rN1Nn2b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 h4 g5 h5 b3 f3 g3 a3 d3 h6 d2 f6 d4 h7 g2 f7 b2 Rh5 d3 Nh3 g1Q Qe1+ Qe3 Nf4 d1B Ne2 d2 Ra2 Ra5+ Kc4 b5+ Kb4 Nd7 Bg2 Nc5 Ra1 Bd7 Bh1 Be8 Ra2 Bg7 f8Q Qd7 Qf7 Nd3+ Kc3 b4+ Kc4 b3 Qg1 Ne1 Rh6 g4 Nd4 g3 Qh5+ Kf4 Nf5 e5 Ra1 e4 Rf6 Re5 Bg2 Qea7 Qd4 Ne7 Bf1 Nc8 Bd3 Rg8 Qd6 e3 h8N e2 Nf7 Qe7 Qd5 Qad7 Ng5 Re3 Rg6 Bd4 Qa5 Rf8 Qh8 Rf6 Rg8 Rc6+ Kb5 Rc3+ Ka6 Rc4 Nc3 b1B Rg6 Re5 Ne3 Ba2 Nb1 b2 Rg7 Rc3 Qg8 Bh5 Qgd8 Be8 Rg6 Bd5 Rg8 Ng2 Rg6 e1Q Rg7 Be2 Nd1 Bf1 Rg8 Qe4 Rg7 Ne1 Rg8 Bg2 Rg6 Kf5 f4 Bh1 Nf3 g2 Rg7 Qf8 Rg3 Qfe7 Bb5 Qe2 Bd3+ Ke6 f5+ Kd6 Ne3 d1R f6 Rd2 Nd1 Re3 Nh2 Ke5 Nf3+ Kf4 Qa4 Qf1 Qaa5 Rde2 Bd2 Rc5 Bb4 Rc3 Bc5 Re5 Ba7 R2e3 Nbd2 Qe2 Rc1 Bc6 Nb1 Ba8 Nf2 Be4 Rd1 Ba8 Rd2 Bd5 Nd1 Qf1 Rf2 Qe2 Nbd2 b1R Qdc7 Qf1 Qd8 Ra1 Nb1 Qe2 Ng5+
2Nq4/NKn2qB1/2R1PQ2/1p1r4/Brk1qR2/3bQ1n1/nPPB4/rr3bn1 b - - 0 1 legal: proof: f4 g5 d4 e5 d5 exf4 d6 cxd6 Qd2 d5 Qd1 d4 h4 gxh4 a4 b5 a5 Be7 Be3 Bc5 Bc1 Bb6 axb6 Qf6 Kf2 Qe7 Ke1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 g4 h5 b7 f5+ Ke5 d5 e4 a5 g5 a4 g6 f3 g7 f4 Rh2 d3 Rd2 a3 Ne2 d4 Nbc3 a2 Na4+ Kc4 Nac3 f2 Nd5 h3 Ndc3 h4 Ng3 h2 Qg4 h1Q Na4 f3 Qf4 h3 Bg2 f1B Ne2 h2 Nac3 f2 Na4 Nf6 g8Q+ Nd5 Qgg4 Na6 b8B Ndb4 Bd6 Nc7 Qgg3 Bf5 Qge3 Rh4 Bf8 Rc8 Rb1 a1R Bg7 Na2 Qff3 Bh7 Qf6 Bf5 Rd1 d2 Bh3 d3 Nd4 Qg2 Nc6 h1N Na7 Ng3 Re1 d1N Bd2 Ndc3 Nb6+ Kb4 Rbc1 Rb8 Nbc8 Kc4 Bg4 Nce2 Bh5 Ng1 Bf7+ Nd5 Red1 Rb1 Re1 Ra8 Rcd1 Bg6 Ke6 Rg4 e5 Qe4 Rc1 Qf8 Kd7 Qd8+ Kc6 Bh7 Ba5 d2 Kb7 d1R Bd2 Bg6 Nc6 Ra4 N6a7 Rg5 Be6 Rb4 Bf7 Bh3 Re2 f1Q Rf2 Re1 Rf4 Qf3 Rd1 Bf1 Be8 Ra1 e6 Nc7+ Bc6 Qed4 Be4 Rb1 Bc6 Bgd3 Be4 Qh5 Bh1 Qf7 Bd5+ Kc5 Bb3 Rd5 Ba4 Kc4 Qf2 Ree5 Qe3 Qe4 Re1 Ra1 Re2 Rg5 Rh2 Rb1 Rh8 Rh5 Re8 Rh1 Re7 Ra1 Rd7 Rb1 Rd6 Ra1 Kb8 Bg2 Rf5 N1e2 Rf3 Rhb1 Kb7 Ng1 Rf4 Bgf1 Rc6+
Bk1N1b1N/qb5b/rq1rP1P1/2Qq2p1/1R1nP2r/2Q1R3/1b3Knq/B3B3 b - - 0 1 illegal: No proof kernel
K1N3Q1/bR3qn1/1rN1p1qP/2bB2n1/2PP2rr/2n2bk1/1BbR3Q/5rN1 b - - 0 1 illegal: No proof kernel
5r2/Q1R2nKR/1bpNb1b1/2P5/1q2q1P1/3q2NB/rkQ1P2r/2qrQ1nB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 dxe5 g5 Be3 gxf4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kd3 Ke6 Ke4 b5 h4 d5+ Kd4 f5 c4 f3 a4 g2 h5 b3 h6 b4 h7 f4 a5 c6 a6 f2 a7 b2 Qc1 f3 Qe3 b3 Rh4 Nd7 Rh1 Bc5+ Kd3 d4 Ke4 d3 Ra5 d2 Nc3 d1R Qd3 b1B Rh5 b2 Nb5 Bb6 c5 Nh6 Qc2 Nf7 Nh3 g1Q Nd6 Qh1 Ra6 Rf8 h8Q Qg2 Kf4 Kd5 Kf5 Kd4 e6+ Nde5 Rh7 Qh1 Bg2 f1Q Ng5 f2 Bh3 Qfg1 Ra3 f1R+ Rf3 Qe3 Nge4 Rf2 Ng3 Qc1 Qf6 Rh2 Qh4 Qd7 Kf6 Qb7 e7 Be6 Rf1 Nf3 e8B Ng1 Kg7 Qe4 Bd7 Qa6 Rf4 Qd3 Rf2 Rab8 a8Q Rbc8 Qb7 Ra8 Rf1 Ra2 Qa7 Bd5 Bf5 Be6 Qca4+ Kc3 Rf4 Qb4 Be4 Bc2 Bh1 b1Q Re4 Kb2 Re5 Bf5 Re7 Bg6 Rd7 Bb3 Rc7 Be6 Qc2+ Ka1 Qg5 Qbe4 Qgd2 Qbb4 Qc4 Kb1 Qe1 Kb2 Qc2+
4n1Qb/1bQk1rP1/rn2pBrR/r4qP1/b1B2R1q/2K2P2/bN1N4/4q1B1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 axb4 Nf3 d5 Ng1 dxc4 d4 h5 Kd2 c5 a4 b5 g4 h4 a5 h3 a6 c3+ Kc2 c4 g6 e6 d5 h2 a7 e3 d6 e2 Qd3 e1Q Ne2 Qh4 g5 Rh6 Rg1 h1B Bb2 Bd7 Qd1 b3+ Kc1 b4 Ra4 c2 Na3 Nf6 Rg3 Bg7 Re3 Bh8 g7 Bb7 f3 Rg6 Ng3 Bdc6 Nb1 Kd7 Nc3 Ne8 Re4 Bb5 Ba3 B5c6 Kb2 c1R Qd5 Ra1 Nd1 Bb5 Rf4 Ra2+ Kb1 c3 Qe5 b2 Kc2 b1B+ Kb3 c2 Ne4 c1R Bc4 Ra1 Nd2 Ba2+ Kb2 b3 Bc5 Rcb1+ Kc3 b2 Bg1 B5c6 Rb4 Ba4 Rf6 Kd8 Rf4 Nd7 Qa5+ Nb6 d7 Ke7 d8B+ Kd7 Bf6 Rc1+ Kd4 b1Q Nb2 Rd1 Kc3 Qf5 Qe5 Rc8 a8Q Rc5 Qab8 Ra5 Qc5 Qh1 Rh4 Ra6 Rh6 Qhh4 Be2 Ra5 Rf4 Ra6 Bc4 Rdb1 Nd1 Rb5 Qf8 Rba5 Qg8 Rb1 Qe5 Rbb5 Nb2 Rc5 Nd1 Rc7 Nb2 Kc6 Qd4 Rf7 Qe5 Kd7 Qc7+
N1N1B3/Qn1r1PN1/Q3brq1/q6P/bb2qqRK/1Pk5/3p1B1n/R3r2b b - - 0 1 illegal: No proof kernel
1N3QqB/3Pbb2/Nrn2n1Q/Bb1k3B/rqq5/P1n5/1qRKn1pP/7R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 d4 Kd6 a3 f5 Bc4 c5 Bf1 b5 Bh3 g5 Qa4 g3 Qa5 g4 Qb6+ Nc6 Ke2 b3 Be3 f3+ Ke1 c4 Qb7 b4 Ne2 f2+ Kd1 f1Q+ Kd2 c3+ Kd3 f4 Bf2 g2 Bh4 g1N Qb6 b2 Nd2 b1N Nb3 g3 Nc5 c2 Bg4 c1Q Bh5 f3 Ra2 b3 Rc2 g2 Na6 b2 Bf6 Rh6 Bh8 Qce1 Ke3 f2 Kd3 Nf6 e5+ Ke7 d6+ Ke6 d7 Kd5 e6 Nc3 e7 b1Q e8Q Qb2 Ke3 Be7 Qf8 Qe8 d8B Be6 Bc7 Bf7 Kd3 Qeb1 Kd2 Qb4 Bd8 Q1b2 Bc7 Qb8 Bd8 Qg3 Bc7 Qg8 Bd8 Kc4 d5 Rg6 d6 Kd5 Nd4 Qfc4 d7 f1B Bc7 Nge2 Bd8 Ne5 Nc6 Ra7 Nab8 Ra4 Na6 Rh6 Ncb8 Nc6 Qe3 Ng1 Qg5+ Ne5 Bg6 Nh7 Bb6 Qh4 Bg7 Bb5 Nc5 Qhc4 Bh5 Nge2 Ba5 Rb6 Nca6 Nf6 Qh6 Nc6 Bh8
1Nr2Rbq/1q1p4/P1br2q1/B2B2QP/N7/K2nRP2/2r1nRQk/b4r1q b - - 0 1 illegal: No possible last move, all moves rejected
2b5/2PNP1KR/BQn2nPn/2r1b1kp/2rB1rQ1/r5qR/1N1bb2q/5R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 Ra4 e5 Ra1 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 d5+ Kd3 a5 g4 h5 e4 f3 b4 a4 c4 f2 c5 a3 b6 h3 b7 h2 b5 a2 c6 Qd6 b6 Ra3+ Qb3 Qg3+ Be3 Nh6 Qc3 Bb4 Bh3 f1R Nd2 Rf5 Rf1 a1B Nc4 Rg8 c7 Nc6 Qb3 Bd2 b8Q Rf4 b7 Kg5 e5 f5 e6 Rd8 e7 Rf8 Kc2 d3+ Kb1 d4 Qb6 Rd8 Nb2 Rd5 Qb4 Rc5 Nf3+ Kf6 Ne5 Kg5 Bg1 Re4 Nd7 f4 Qa7 f3 b8R f2 Qab6 Rf4 Bg2 Rc4 Bf3 Rf5 Be2 Rfc5 Rd1 f1R Ra8 Rff5 Rf1 Rf4 Bf2 Kg6 g5 Kf5 g6 Kg5 Rhg1 h1Q Rb8 Qh4 Rh1 Qhh3 Be3 Qhg2 Rh3 Q2h2 Qa4 Bb4 Bg1 d2 Ra8 d3 Bd4 d1N Rb8 Ba6 Rh8 d2 Rh7 Nc3+ Kc2 d1B+ Kd2 Ba5 Qab4 Bc8 Qa4 Qg4 Ke3 Ne4+ Bd3 Bc3 Be2 Nf6 Bd3 Rb4 Ba6 Bf3 Qd1 Rbc4 Qe2 Rff5 Qg2 Be2 Qe4 Qgg3+ Qf3 Nd5+ Ke4 Bd2 Qg2 Na7 Qg1 Rf4+ Ke5 Nf6+ Ke6 Nc6 Qg2 Nhg8 Kf7 Nh6+ Kg7 Kf5 Nd1 Bac3 Nb2 Kg5 Bg1 Be5 Bd4 Nhg4 Qf3 Nh6 Qg4+
3r3n/R1p2N2/qPrb4/1q1q2Q1/R1b1BB2/1PQq1b1b/N1P4K/R2nnk2 b - - 0 1 legal: proof: f4 b5 a4 g5 h4 gxh4 e4 d6 e5 dxe5 axb5 exf4 Ra6 f3 Ra2 Kd7 Ra1 Ke8 Kf2 Kd7 d4 Kd6 g4 Kd5 b3 Ke4 g5 a5 b6 h5 d5 f5 d6 e5 d7 f4 g6 h3 g7 h4 Bb5 a4 Qd2 a3 Ba6 a2 Ne2 h2 Nd4 h3 Qc3 Nc6 Rd1 h1B Kg1 h2+ Kf1 f2 Be3 Na5 Nf5 Kf3 Bd3 e4 Qc4 Nh6 g8Q Nf7 Qg7 Rh6 Ng3 Rc6 Bc5 e3 Qgd4 Nh8 Qe6 Nc4 Bd6 Nb2 Nf5 Rb8 Rd2 Nd1 Ng3 Qg5 d8R Qb5 Be5 Bd6 Nc3 Ra8 Rb1 a1Q Nge4 Qaa6 Ng5+ Kg3 Qh6 Bh3+ Ke2 Kg2 Nf7 f1B+ Ke1+ e2 Ra1 f3 Na2 Rc8 Qc3 Kg1 Qh4 Bh1g2 Qe7 h1Q Qg5 Rb8 Bf5 Ra8 Rd4 f2+ Kd2 e1N Bf4 Be2 Ra4 f1Q Rb8 Bc4 Rb7 Rd8 Ra7 Bg4 Bh7 B2h3 Bf5 Qhd5+ Bd3 Nf2 Ke3 Kg2 Be4+ Kg1 Be5 Qfd3+ Kf4 Nd1 Qg8 Bf8 Qg5 Kf1 Bd6 Bf3 Kg3 Be7 Bf4 Bd6 Kh2
1Nb1B3/1Pb1bN1b/6nP/qr1NrqRQ/1r6/Bn1n4/pR3Q1P/3kn2K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 exf4 a4 bxa4 Nc3 c5 Nb1 cxd4 Kf2 Ke7 Kg2 Kd6 e4 Kc5 c4 Kb4 h6 a5 c5 g5 b3 d5 e5 f5 e6 g4 c6 f3+ Kg3 f4+ Kf2 g3+ Ke1 a3 c7 g2 Kf2 a2 e7 d3 e8Q a4 Be3 d2 Bd4 a3 Ne2 g1N Qd7 Nc6 Bg7 d4 Qh3 d3 Qc2 d1B Nbc3 d2 Rc1 a1B Nb1 a2 Qg3 Nge7 Nbc3 Ra4 Qg5 Ne5 Nd4 N7g6 Ndb5 Be7 Nd4 Re8 Qb2 Bc2 Be2 Nd3+ Kf1 f2 Kg2 f1N Qh5 d1R Bf8 Nf3 Rg1 Nfe1+ Kh1 f3 Rg5 f2 Rb1 Nd2 Bf3 Ra5 Bc6 Rb5 Bd7 Bc5 Bc6 Re5 Be8 Be7 Nd5+ Ka5 b4+ Ka4 Bg7 Nb3 Nc6 Rc1 Qd4 f1Q+ Qg1 Qf4 Rb2 Rb1 Bf8 Qf5 Nb8 Ka3 Nf4 Qd5+ Qg2 Qa8 Nd5 Qa5 Qf2 Bd1 Re2 Bc2 Rd2 Kb2 Re2 Be6 c8N Kc1 Nd6 Bc8 Nf7 Bd4 Rd2 Bb6 Re2 Bc7 Rd2 Rc5 b5 Rc4 b6 Rb4 Re2 Kd1 b7 Rb5 Qfh4 Nbc5 Qf2 R1b4 Nd8 Bb1 Nf7 Nb3 Rb2+ Qg4 Qf1 Ndf4 Bc6 Rc4 Na6 Bc5 Qg1 Nh4 Qg2 Bh7 Nb6 Nhg6 Be8 Nfd3 Nd5 Rce4 Qf2 Ra4 Re2 Qf5 Nb8 Ba3 Rb2+ Rg4 Bc5 Bb4 Bb6 Bf8 Bc5 Be7 Re2 Rf4 Ba3 Rfb4 Rb2+
n2bnQ2/1P1RrbQp/4B1NN/B3q1b1/3PPr1q/B3nkR1/1q4b1/n5K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 a5 g5 c5 d3 f5 g6 c3 b6 h3 b7 c4 g7 a4 b5 c2 b6 a3 Bb2+ c3 Ra2 c1Q Qh5 f3 d4+ Kf4 Qh6+ Qg5 Rh2 c2 Bb5 Nd7 Rg2 h2 Be2 h1Q Bf1 Ngf6 g8Q Qh4+ Rg3 Ne8 Qf6 Be7 Bc4 Bd8 Qgg7 Rf8 Nd2 Ra7 Ba1 Qb2 Bb3 c1B b8B+ Rc7 b7 Nb6 Be6 Na8 Qfe7 Rf7 Qef8 Qgh5 Kf1 f2 Ndf3 Be3 Ba7 Rce7 Bc5 Bc1 Kg2 f1N+ Ne2+ Ke3 Kg1 f4 Ne5+ f3 Rg2 Rf4 Ng6 Qe5 Rg4 Bd2 Ng3 f2+ Kg2 Bc1 Nf5+ Ke2 Nh6 Bd2 Bd5 Be6 Bd6 Bf7 Be6 Rf5 Bb4 Bg5 Bc3 Rf4 Ba5 Qc2 B1c3 Qb2 Bcb4 Ke3 Ra1 a2 Rc1 a1N Rc7 Ke2 Bd6 Ke3 Ba3 Ke2 Rd7 Ke3 Rg3+ Ke2 Bh3 Ne3+ Kh2 f1B Kg1 Bg2 Be6 Qc7 Rg4 Kf3 Bb3 Qb8 Be6 Qe5 Rg3+
3b1KQr/1PPqnRp1/kBN3Nn/bQq2B2/3b4/7P/2n5/qqRr1b1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kd2 a5 Kd3 f5 Kc4 d5+ Kd3 Kd7 c4 Kc7 e4 Kb7 b4 g3 b6 f3 c5 f2 h3 a4 b5 g2 e5 a3 e6 a2 e7 f4 e8N f3 Bd2 Qd6 Nc3 Nc6 Ne4 Nh6 Qb1 Be7 Be3 Bd8 N8f6 Ne7 Ne2 g1B N4g3 Qd7 Bg2 f1N Nf4 f2 Be4 Ra7 Qb4 Qc6 Rc1 a1B Ng4 Bc3 Qb1 Ra1 Ng6 Ba5 N4e5 Bg4 Bf5 Be2+ Kc2 d3+ Kb3 d4 Kc4 Qc7 Nc6 d2+ Qd3 d1Q Rh2 Be1 Nh1 Ba5 Rg2 Qd2 Rg4 Qb2 Rf4 Qb1 Rf3 Ng3 Rf4 Bf1 Qe2 d3 Kd4 Neg8 Kd5 d2 Ke6 d1Q Rf3 Ne7 Qd3 Ng4 Kf7 Ne2 Rf4 Nd4 Qe2 Rh6 Kf8 Nc2 Qc4 Qcd7 Qg8 Rh8 Rf3 Nh6 Bd4 Kc8 b7+ Kc7 Rf4 Qh5 Be3 Ra4 Rf3 Rd4 Rf4 Rd1 Rf3 Qe6 b8Q+ Kd7 b6 Rd5 Bg4 Qa1 b7 Bc4 Rf7 f1Q Nb4 Qe1 Qg3 Bf1 Rd1 Rd3 Qh4 Kc7 c6 Qd7 Qg5 Rd4 Qd5 Kb6 c7 Qe5 Nc6 Ka6 Bf5 Bf2 Rd3 Qeb1 Rd1 Rd3 Ba7 Bd4 Rc1 Rd1 Bb6 Qed6 Qb3 Qc5 Qb5+
N3k1qN/Qp6/1Q1n1K1b/1r2n1P1/1NPnB3/q1Rr2P1/q6R/3bqnBb b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 b4 axb4 d4 cxd4 Rh4 e5 Rh1 exf4 Kd2 h5 Kd3 d5 e4 f5 c4 b3 a4 h4 a5 b2 g3 f3 e5 h3 e6 f2 a6 f4 a7 h2 e7 f3 Qe1 Nc6 Qb4 Ne5+ Kd2 d3 Ke3 d4+ Kf4 d2 Qa5 d1Q Qb4 d3 Qb3 d2 Qc2 Bg4 Ne2 Qe1 Qd1 Nh6 Ra4 Nf5 Qb3 d1N Nbc3 b1Q Be3 Bh6 Bg2 f1N Ra3 f2 Qb6 Qa2 Be4 Nd6 Nd5 Nc3 Nb4 Ncb5 Rc3 Rc8 a8N Rc5 Qa7 Nd4 Qb6 Rb5 Qa7 Kf7 Qb6 Qg8 e8Q+ Kg7 Qed8 Kf7 Qa7 Qa3 Qdb6 Ke8 Nc1 Bd1 Ncd3 Nef3 Ne5 Rh7 Nc2 Rd7 Nf7 Ne5 Nb4 Qe2 Nh8 Qea2 Rg1 h1B Rg2 Nd2 Rh2 f1Q+ Bf2 Qe1 Bg1 Nf1 Rb3 Nc8 Rc3 Rdd5 Bc2 Nd6 Be4 Ndf3 Qba6 Rd3 Q6b6 Ndf7 Kf5 Nd4+ Kf6 Nd6 Re2 Qh7 Rf2 Qg8 Rh2
br1Q2Nr/Pq3r2/3B1qb1/npPr1B2/3kRb2/8/2nn1PNR/4bNKQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 g4 Kf7 c4 Kf6 a4 Ke5 f6 b5 c5 d5 g5 h5 g6 h3 g7 b3 f7 h4 a5 b2 a6 h2 a7 d3 Ra6 d4 Nh3 d2+ Ke2 d3+ Kf3 Nc6 Kg2 Nd4 Be2 Rb8 Qg1 d1R Rc6 d2 Rf6 Nc2 Rh6 Bf5 Ng5 h3+ Kg3 Bg6 Bc4 Kd4 Kf3 e5 Kg3 e4 Rh7 e3 Qe1 e2 Rh5 Qf6 Bd3 Ne7 g8N Bh6 f8Q Nc6 Bf5 Na5 Rf1 h1Q Qd8+ Qd5 Kh2 Qd7 Kh1 h2 Nh3 Bf4 Kg2 h1B+ Kg1 Ba8 Rh7 Bd6 Nf4 Qde7 Rh2 Qb7 Nd5 Bf4 Ne3+ Qd5 Ng2 Qd7 Nc3 b1N Nd5 Qb7 Ba3 Rh7 Nde3+ Rd7 Bb4 Rc1 Qd1 e1B Qh5 d1R Bd2 Nb3 Ba5 N1d2 Bc7 Na5 Bd6 Rf7 Qf3 Na3 Nh4 Ra1 Qh1 Nc2 Nhg2 Ra3 Nc4 Rh3 Nce3 Rh8 Rh5 Ndb3 Rh2 Bb4 Re1 Nd2 Nf1 Ndb3 Bf8+ Kc4 Nh6 Rd5 Re7 Kd4 Ng8 Be1 Re5 Nd2 Bd6 Nc6 Re2 Na5 Re4+
nnNq1b2/3bbBR1/3P1Br1/4k2Q/2nNP1QB/b3PKbp/1R3n2/3rb3 b - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 e5 h5 b5 h6 bxa4 f3 e4 fxe4 gxh6 Rh3 h5 Rh1 h4 Kf2 Kd7 d4 Ke6 g4 f5 b4 c5 b5 a5 g5 h5 d5+ Ke5 d6 h3 g6 h2 e3 h4 b6 h3 b7 a3 g7 a2 Kg3 a4 Kf3 a3 Qb3 f4 Kf2 f3 Qa4 c3 Ne2 c4 Ng3 c2 Bd2 c1B Qe8+ Ne7 g8Q c3 Qg4 c2 Qgd7 Rg8 Ba6 Rg6 Be1 Bd2 Rg1 h1N+ Kf1 c1B Nf5 f2 Ke2 f1N Bc4 Nf2 Bf7 Ba5 Rg3 Nd2 Nc3 Nc4 Rb1 a1B Rb2 a2 Nd4 Ra7 Qg4 Bd7 Na4 Ra6 Rb6 Ba3 Kf3 B1c3 Rb1 a1B Nb6 B5b4 Rb2 Ra5 Nb3 Rd5 Nc8 Rd1 Nd4 Ba5 Ne6 Nd5 Nd4+ Be7 Rg1 Nc7 Rg2 Nc6 b8B Na8 Bc7 Nb8 Rg1 Nd3 Bh4 Be1 Rgg2 Bg3 Bg5 Nf2 Qh8+ Bf6 Qhh5 Be7 Rg1 Be1 Ba5 Qh8 Bd8 Bf8 Re2 Bac3 Rb2 Ba5 Bde7 Bd8 Bh4+ Bf5 Beg5 Bde7 Rg2 Bd7 Rb4 Rh6 Rb2 Bf4 Qg3 Bg7 Rg1 Rf6 Qg2 Qd8 Bh6+ Bf5 Qgg6 Bgf8 Rg5 Bg3 Qg4 Nab6 Q6h5 Na8 Rg7 Rg6 B6g5 Bd7 Bf6#
3N2n1/bR2r1P1/3p2nB/nBb4r/1n1Qnq1k/4PR2/PK1N1b2/nQQ4b b - - 0 1 illegal: No proof kernel
4RrQ1/b1Pn2Bp/r5bK/2kPn3/3N1PQ1/R2bqb1b/B3N1n1/n1b1Q3 b - - 0 1 illegal: No proof kernel
b5b1/2qNb2R/2RBQn2/2r3Pb/K2b1r1k/2P1bp2/2nQP3/1N1Bb1Nb b - - 0 1 illegal: No proof kernel
k6b/1bR4K/rp6/5nN1/Pb2nn1P/rbQq1rN1/1PNB2Qr/2nB2R1 b - - 0 1 legal: proof: f4 e5 g4 exf4 d4 c5 Nc3 cxd4 Nb5 h5 Nxa7 hxg4 Kd2 g5 Kd3 f5 e4 d5 c4 Kd7 a4 Kc7 e5 f3 c5 b6 h3 Kb7 e6 f4 e7 f2 e8Q g3 Qf3 g2 Be2 f1N Qee3 g4 Qe8 g3 Qeh5 Ne7 Qfg4 f3 Bh6 f2 Qf3 Nbc6 Qg5 Ng6 Qe5 Nd2 Rc1 f1R Nb5 Nf4+ Kc2 d3+ Kc3 Ra6 Bd1 Ka8 Nd4 Ne7 c6 Ne4+ Kb4 d2 c7 Bb7 c8N Nf5+ Kb3 Bb4 Nc2 d4 Kc4 d3 Qg4 Rf3 Ne2 g1N Qc3 g2 Ng3 Nge2 Nd6 g1B Nf7 Bd4 Ng5 Rh7 Rg1 Bh8 Ra1 Nc1 h4 Rf7 Ra3 Rf2 Qh3 Rh2 Qg2 Qd7 Bh5 d1R Be2 Re1 Bd1 d2 Ra1 Rf6 Rb1 Nfd6+ Kd4 Nf5+ Ke5 Qd3 Ra1 Rf1 Ra3 Rf3 Rb3 Bc5 Rb5 Bb4 Rc5 Ng7 Rc7 Rc6 Qb3 Rc3 Qc4 Ra3 Qc3 Nf2 Kf6 Nf5+ Kf7 Ne4 Kg8 Ng6 Be2 d1B Kh7 Nf4 Ne6 Nh3 Bd2 Nf4 Ng5 Ng7 Nd4 Bb3 Nc2 Nf5 Bd1
1qRN3n/1Q5K/P2n2r1/1Q5B/P2pR1nB/Pb2rrb1/1br1R1nN/3k2b1 b - - 0 1 illegal: Other
1N1Bb1N1/5Q2/Pq3pPb/1Q3rB1/rr1r1nnR/3Bb1b1/n4RP1/3K1kn1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 a4 Kd7 e4 Kd6 d4 c5 a5 b5 e5+ Kd5 g6 Ke4 d5 h5 d6 f6 d7 c3 e6 f3 e7 c4 e8Q+ Ne7 Rh3 c2 Qd6 h4 Ba3 Ke3 Qc6 c1B Rh2 f2+ Kd1 c3 Qb7 h3 Be2 f1R+ Kc2 Kf2 Qc7 b3+ Kd3 b4 Bh5 c2 Qb6+ Be3 Be2 c1B Nc3 b2 Kc2 b1R Nb5 b3+ Kd3 b2 Kc2 Bh6 Qe6 Nd5 Nf3 Na6 Ng5 Nab4+ Kb3 Nf4 Qc6 Na2 Kc2 Qb6 d8B Bd7 Qg8 Be8 Nd4 Ra7 Rh1 h2 Qb5 Rd1 Re1 h1N Nc6 Rd4 Bd3 Ra6 Re2+ Kf1 Bd6 Nf2 Qf7 Ng4 Nb8 Bf2 Bb4 Bce3 Bd2 Bg3 Bc1 Rh7 Kd1 Ra8 Qfc4 Rhd7 Nf7 R7d5 Qc7 Rf5 a6 Ra4 Qcc4 Ra7 Qe6 Rd7 Qe7 Rdd4 Qb7 Bf8 Nh6 Bg7 Ng8 Bh6 Kc2 Rdb4 Bd2 Rd1 Qf7 b1N Bc1 Nbc3 Rb1 Re4 Rb4 Rd4 Bd2 Rb1 Rc4 Rbb4 Bc1 Ncd5 Kd1 Nh3 Bd2 Bg1 Bg5 Be3 Rc6 Ng1 Re6 Nh2 Re5 Ng4 Re4 Ne5 Rg4 Nf4 Rh4 Ng4 Rf2+
2Rq1NbK/Q1r1BP2/1kq3qb/4B1b1/3bpP2/1r1NP3/1Rn2b2/1B1q2Qq b - - 0 1 illegal: No proof kernel
Kn1B4/1B2N3/1qnpk3/n2bq1bN/b1PP3N/n2RnP1q/1b1RQ3/2Q2r2 b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 c5 h5 cxb4 h6 gxh6 Na3 h5 Nb1 h4 a4 b5 Rh2 a5 Ke2 b3 Rh1 b4 Ke1 Ra6 Bd3 Rb6 Bf1 Rb5 axb5 Qb6 Qg4 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kd5 b2 g4 d6 d4 h3 c4 e3 b6 a4 g5 h2 b7 a3 Bd3 a2 Bf5 h4 Qc2 e4 Qc3 h3 Qd3 e2 Qf3 e1N Qg2 e3 Na3 b1N Ne2 b3 Bb2 Nc2 Nf4 e2 Qg3 e1Q Qg1 Bh6 Bc3 b2 Qg2 Na6 Kc6 Qe5 b8Q Ne3 Be4 Nd2 Nc2 b1N Qb2 Bd7+ Kb7 Ba4 Ne1 Nb8 Nf3 Ne7 Ba5 Rf8 Rd1 h1B Nh5 h2 g6+ Ke6 g7 Bg5 g8N Na3 Nh4 Nb3 Ka8 Qc7 Rac1 a1B Bb7 Nec6 Rd3 Rf3 Qc3 Bb2 Ne7 Rf5 Qf1 Bd5 Rc2 h1Q Rcd2 Qh3 Qe2 Rf4 Bb6 Nba5 Qc2 Rg4 f3 Rg1 Qc1 Rf1 Ba7 Na6 Bb8 Qb6 Bc7 Nab8 Bd8
3n2Nn/3rk1q1/qN2q1nq/PRpQQ1q1/P3Kb2/R1P4b/B2b1R1B/6n1 b - - 0 1 illegal: No proof kernel
2QQ3n/kq1pqBP1/3P3q/3N1R2/1b1K2Bn/1P4Rn/4rB1q/nnn1N2r b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 b5 gxh4 b6 axb6 Ba3 b5 Bb2 b4 Bc1 b3 Bb2 b5 Kf2 b4 Qe1 Ba6 Bc1 b2 Na3 b1N Qd1 b3 Ke1 b2 Nh3 Bc4 Ng1 Bb3 cxb3 Bg7 Nc4 Bh6 Na3 Bf8 Kf2 h5 e4 f5 d4 c5 g4 h3 e5 h4 e6 h2 d5 f3 Ke3 f2 g5 h3 g6 c4 g7 c3 e7 c2 Qg4 f4+ Kd4 f3 Qf5 Nh6 Be2 f1Q Bd3 f2 Ke5 Nc6+ Ke4 Qe2+ Be3 f1Q Qg6+ Nf7 Bb5 c1N Ba6 Qfg2+ Nf3 Ne5 Qf5 Ng6 Rf1 h1N Qf4 h2 Qh4 Nf2+ Kd4 h1Q Nb5 Na3 Ne1 b1N Nc3 Nh3 Bf2 Qgh2 Bd3 Qdb8 Bf5 Qb7 Bg4 Ra7 Qf6 Nh4 Rg1 Rh6 Rg3 Nh8 Qb6 Ra6 Qc7 Rae6 Qc8+ Kf7 e8B+ Ke7 Beh5 Kd6 Bf7 Re8 Qd8 Qe7 Qc8 Nc4 a4 Ne3 a5 Nc2+ Kc4 Rh5 a6 Rh6 Ra4 Na1 a7 Rh5 Ra5 Rh7 Qa8 Kc7 Kd4 Kb6 Qc8 Rh5 a8Q Rh7 Qc4 Rh5 Rc5 Rh7 Qc8 Ka7 Qd8 Qe6 Nc2 Qhe1 Rf3 Qg2 Nd1 N4g6 Qd3 Ng5 Re3 Rh1 Qc3 Nh4 Rg3 Qh2 Nde3 Nh3 Ra5+ Qea6 Qcc8 Bb4 Rc5 Qe6 d6 Qh6 Rf5 Re7 Nd5 Qee6 Be8 Qf7 Ne1 Re2 Nb6 Qfe6 Nd5 Qe7 Bf7
2nnN1R1/P1Q1B3/1Pq1r2k/1nn3pq/5N2/2q3P1/B2rqQQ1/nK1nb1R1 b - - 0 1 illegal: No proof kernel
q1RB3k/2qq1N1p/q2q2B1/2qP1rR1/2QPb2r/1K1nb2P/RbN5/3Q1b2 b - - 0 1 legal: proof: c4 f5 d4 d5 g4 fxg4 b4 dxc4 e3 Nc6 d5 Nd4 exd4 a5 Bg2 axb4 Bh3 Be6 Bf1 Bc8 Kd2 Kf7 Kc2 b5 a4 c5 f4 g5 f5 Kg7 a5 e5 a6 c3 a7 c4 h3 g3 Bd2 b3+ Kc1 b2+ Kc2 e4 Be2 g4 Bd3 g2 Be2 b4 Qf1 e3 Ra6 b3+ Kd1 g3 Rc6 c2+ Ke1 c1Q+ Bd1 e2 Be3 c3 Rd6 c2 Bf2 Qd7 Ra6 Nh6 Ra5 Ba6 Rh2 Rg8 f6+ Kh8 f7 Rg4 Rb5 Rh4 Na3 b1Q Nc4 b2 Rb6 Qa2 Rb3 b1B Ra3 Ng4 Rb3 Ne5 Nf3 g1B Ng5 g2 Rg3 Ba3 Ne3 Rf8 a8R Bb2 Rc8 Bd3 Rg4 Qa8 Bg3 Be4 Bf4 Ba2 Rg3 Qa1 Kd2 Nd3 Bc7 Bc4 Bd8 Q1a6 Rg4 Bf2 Qh1 g1Q Rgg2 Ba3 Kc3 c1Q+ Nc2 Be3 Rg4 Bb5 Kb3 e1Q Rg3 Qdd6 Bh5 Bb2 Bg6 Qea5 Rf2 Qh2 Qd1 Qac7 Re2 Qcd7 Rg4 Rg8 f8Q Qhf4 Qf5 Rf8 Rg3 Qfe5 Qff1 Rf5 Rf2 Q6c7 Qfe2 Qed6 Nf7+ Kg7 Rg5 Kg8 Na1 Q1c5 Qec2 Kg7 Qc4 Kg8 Ne5 Kh8 Rd2 Bc3 Ra2 Bb2 Nc2 Nf2 Qa4 Bf1 Qc4 Nd3 Nf7+
nN2K2Q/5rQn/Np3rb1/b2B3P/kP4r1/n4R2/bP1n1Bn1/Rn1Q2b1 b - - 0 1 legal: proof: g4 c5 d4 cxd4 f4 e5 a3 exf4 g5 Qa5+ Bd2 Qb4 axb4 h6 Be3 hxg5 Bc1 g4 Kd2 d5 Kd3 Kd7 c4 Kc6 h4 g5 e4 f5 h5 a5 c5 Kb5 e5 a4 e6 f3 e7 f2 e8Q+ Nd7 c6 a3 c7 a2 Bg2 f1B+ Qde2 g3 Qd8 g4 Qf6 f4 Be3 f3 Qf7 f2 Rh3 Rh6 Bd2 Be7 Qf8 Nb6 Be1 Rf6 Nd2 Ka4 Ndf3 Bd8 Bh1 g2 Rc1 a1N Rc2 g3 Ne5 Be6 c8Q Ra7 Nd7 Na8 Qg7 Ba5 Nf8 b6 Qc3 Raf7 Rd2 Nc2 Ng6 Na3 Nf3 g1R Rd1 g2 Kd2 d3 Ke3 d4+ Ke4 d2 Ke5 d3 Nf4 Ba2 Rc1 d1N Ra1 d2 Nd5 Ne3 Nc7 d1N Qed3 Be2 Nd4 f1N Rf3 Nd2 Bf2 Bf1 Qb1 Bd3 Nc6 Bg6 Qd4 Nc3 Na6 Ned5 Ncb8 Nf4 Qbd3 Ncb1 Qd8 Rc1 Qe2 g1B Qd1+ Rc2 Qc8 Ng2 Qcf8 Bb3 Qh8 Rc4 Qfh6 Rg4 Q6g7 Rff4 Kd6 Nf6 Kc6 Nh7 Kd6 R7f6+ Kd7 Rf7+ Ke8 R4f6 Rc3 Nh4 Bd5 Ng2 Qf1 Bc4 Rf3 Ba2 Qd1+
N3bnKB/6NR/2nr4/1PpnR2R/Pk3Q1q/br4Pp/bqB3Q1/q1r5 b - - 0 1 illegal: No proof kernel
5k2/1n2N1q1/PnR2r2/Q5qp/QP1pb2b/KRn2PBB/2b1qr2/Q2r3N b - - 0 1 illegal: No proof kernel
2bb4/2P1qq1B/1r2rBb1/2RP1Rn1/1QP2QKp/RqN5/2p1n2r/k3N1n1 b - - 0 1 illegal: No possible last move, all moves rejected
R1R2r1N/2bK1Q2/3n1p1P/1BPnk3/n1b1nBnQ/b3qpB1/2r4P/4N1r1 b - - 0 1 illegal: No possible last move, all moves rejected
nQ1n1Bn1/n2b1b1k/q1p2R2/2P2nP1/1BN3K1/4Nrb1/P1R2p1B/r4Q1r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 Be2 g6 fxg6 Bh6 g5 Bf8 Bg4 hxg4 Kf2 b5 Kg3 f5 h4 e5 d4 c6 c4 b3 c5 b2 h5 b4 d5 e3 h6 e4 h7 f4+ Kh4 g3 g7 Kf7 d6 Kg6 d7 g2 Rh3 b3 Nd2 b1N Qc2 f3 Qc3 e2 Nf1 e1R Be3 f2 Qc1 b2 Rf3 Ra3 Ne2 g1N Qc2 Na6 Nfg3 Bd6 Nc3 Nc7 Nh1 Na8 Bd2 Bg3+ Kg4 Qa5 Bc1 Qa6 Qd2 e3 Nb5 e2 Nd6 Nh3 Qd1 Nc3 Nc4 b1B Bd2 Nb5 Bb4 Na7 Rf8 Be4 Rc1 Rf3 Rc2 Nf4 Qd3 Ne6 d8B Rb1 Bc7 e1N Qf1 Ra1 Rf7 Ng2 Rf5 Bf4 Ng3 Nd8 Bd6 Nh4 Bf8 Bb7 Rf7 Bd5 Nf5 Bg3 Nfe3 Nf5 Bd6 Bh4 Bh2 Bc8 Rf8 Bd7 Rf7 Nge7 Rf8 Bg3 g8Q+ Ng7+ Rf5 Bf7 Qe8 Rg8 h8B Kh7 Bd2 Rf8 Bb4 Ng8 Qe5 Re8 Qb8 Re6 Rf6 Nf5 Bg7 Re8 Nd5 Ree1 Bf8 Rec1 Nde3 Rcb1 Qe2 Rh1 Qf1
4nQ2/2b2BQP/KQ1r1rb1/2p3R1/p3r3/2nNn1Bb/nPPq1RN1/4n2k b - - 0 1 legal: proof: f4 b5 e4 h5 g4 hxg4 a4 d6 e5 dxe5 axb5 exf4 Ke2 f3+ Kf2 Qd4+ Ke1 Qd8 h4 Kd7 d4 Kd6 Kd2 Kd5 Kd3 f5 h5 g5 b6 a5 h6 e5 b7 c5 h7 f2 Ra3 f4 Be2 f1N Rh6 g3 Kc3 Ke4 Kc4 g2 Kb5 a4 d5 g4 d6 f3 d7 g3 Bd2 f2 Bf4 Nf6 Bc4 Ne3 Bg8 f1B+ Bc4 Ra6 Bg5 Rd6 Bh4 Na6 b8Q Bd3 Ne2 Kf3 Rc3 g1N Qc7 Kg2 Qd2 e4 Qa5 Ne8 Qd1 Kh1 Rg6 g2 Ra3 Nb4 Bg3 Na2 Qb6 Qg5 d8Q Bh3 Rg7 Rg8 Rf7 Rgg6 Ka6 Rgf6 Nc1 Qf4 Qf3 Ne2 Qd7 Nec3 Nd2 Be7 Rb3 Bd8 Nf1 Bc7 Qdg4 Qh6 Qg7 Qg5 Qf5 g1R Qc8 Rg2 Qf5 Re2 Rf8 Ng4 Ne3 Qf4 Ng2 e3 Qc8 Bg6 Bf7 Qd4 Qd8 Qd2 Nd3 Re1 Rb4 e2 Rf4 Ne3 Rf5 Rc1 Rf2 e1N Rg8 Rd1 Qe7 Rde6 Qed6 Re4 Qdf8 Qc1 Ne5 Rdd6 Nd3 Qd2 Qh8 Bgf5 Rg5 Bg6 Qhg7
1q4k1/3N3b/2Qr4/1nRq1p2/R2b1PPn/1Rq1pbbQ/2BP1rb1/1K1N1B2 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 dxe4 Ba3 g5 axb5 gxh4 b6 Qd5 b5 Qd8 Bb4 cxb4 g4 h5 c4 a5 f4 e5 c5 b3 b7 e3 c6 h3 b6 h4 c7 b2 Ke2 a4 Qc1 h2 Kd1 h3 Kc2 e2 Nf3 e1B Ng1 a3 Ra2 e4 Bg2 e3 Bf3 Ra6 Be2 Qd5 Ra1 a2 Bc4 Bg7 Be2 Kf8 Bc4 Nc6 b8Q Bd4 b7 Na7 Qd1 Rd6 Nc3 Ne7 Bb3 Kg8 Qf3 Nf5 Qe4 Bg3 Nd1 Nh4 Nf3 Nb5 Ne5 f5 Qa7 Be6 c8B Bf7 b8R Bg6 Re1 h1B Nd7 h2 Qb7 Bh7 Qf3 Bg2 Qc6 h1B Ba6+ Kf7 Rc1 a1Q Rb7 Qa5 Kb1 Qc3 Bc2 Kg8 Qf1 Bf3 Qh3 Bhg2 Rg1 Na7 Rb4 Nb5 Ra4 Na7 Bb3 Qb4 Kc2 Bg6 Qc7 Bf1 Qh1 Ng2 Nf2 Rh2 Qc6 Nh4 Bac4 Rg2 Qh3 Bh7 Rb1 Qb8 Bd3 Nb5 Bbc4 B1e2 Rgc1 Bf1 Nd1 Rf2 Be4 B1g2 Bf1 Bh2 Rba1 Bg3 R1a3 Bc3 Rb3 Bd4 Kd3 b1Q+ Rc2 Qb2 Rc5 Qa1 Kc2 Qc3+ Kb1 Kf7 Bed3 Kg8 Bc2
QqB4q/2Q1nb2/2b5/1krP2pR/2N1n2P/qNR1p1P1/1b3r1b/1Q1KB2b b - - 0 1 legal: proof: e4 d5 b4 f5 c4 fxe4 cxd5 h5 b5 h4 b6 h3 g3 axb6 Qe2 b5 Qf3 b4 Qg2 hxg2 f4 Kd7 a4 c5 d4 g5 h4 e5 a5 b5 a6 e3 a7 e2 d6 Kc6 f5 c4 f6 e4 d7 c3 f7 b3 Rh3 c2 Ra4 b4 d5+ Kb5 Nd2 b2 Ndf3 b1B Be3 c1Q+ Kf2 b3 Ra2 b2 Ra4 Nf6 Bf4 Bg7 f8Q Nc6 Bc7 Ne7 Ba5 Bb7 Nd2 Rc8 a8Q Bc6 Rh2 e3+ Kf3 Ne4 Nc4 e1Q Ne2 g1B Bh3 Qe8 d8Q Qb4 Qf5 Rf8 Qc7 Bf6 Rf2 Bh2 Ra3 Bd3 Qg6 b1B Rc3 Qca3 Nc1 Bf1 Ra2 Bg2+ Ke2 Bh1 Nb3 Bd4 Bg4 Rf2+ Kd1 Qh8 Qf5 Nd6 Qh7 Bg6 Ra1 Bf7 Qb1 Ne4 Bf5 Qc5 Bb4 Qaa7 Ra6 Qb8 Ba5 Qa3 Bh3 Bb7 Rh6 Bc6 Rh5 Bg7 Rc1 Be5 Be1 Bb2 Rc3 Bce8 Qe5 Rc5 Bc8 Bc6 Qc7
1bK1n3/bn1N1kn1/B1b2r1B/1q1PQpb1/6R1/1rN5/2BPPp2/b2qQR2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 Kf2 b5 a4 g5 h4 f5 a5 c5 h5 g3+ Kf3 g4+ Kg2 c4 h6 c3 a6 c2 h7 b3 a7 b4 Rh4 b2 Ra2 f3+ Kh1 b3 Ra3 g2+ Kh2 g3+ Kh3 Qb6 Rha4 Be7 Rb4 Bg5 Raa4 Na6 Ra2 Nf6 Ra5 Qb5 Nc3 b1Q Rba4 b2 Rg4 Bd7 Na2 Nc7 Rga4 Rb8 a8B Ne6 Bb7 Kf7 Rg4 Bc6 Qe1 Ng7 Nc3 Nfe8 Ba6 Rf8 h8Q Qa1 Raa4 b1N Bb2 Na3 Raf4 Nc4 Ba3 c1B Be7 Bh6 Kh4 Na5 Bd8 Nb7 Bg5 Ne6 Qe5 Bb2 Kh5 Qd1 Kh4 Ba1 Kh5 Bg7 Bh6 Bh8 Kh4 N6g7 Kg5 f2 Nf3 g1B Rb4 g2 Rb1 Bh2 Rc1 g1B Bg2 Kg8 Bh1 Bf4+ Kg6 Be3 Bg2 Ba7 Kg5 Ned6 Rb1 Bh2 Bh1 Rfe8 Kf6 Rf8+ Ke7 Ne8 Rc1 Rf6 Bg2 Na5 Rb1 Rb6 Kd8 Nb7+ Kc8 Bf4 Ng1 Kf7 Be4 Bg5 Bc2 Qd3 Nf3 Rb3 Qd6 Qb5 Ne5+ Kg8 Nd7 Kf7 Qe5 Bb8 Na4 Bd4 Rc1 Bda7 Nc3 Ne6 Qf4 Rg6 Qf1 Qe1 Na4 Ba1 Nc3 N6g7 Qe5 Rf6 Qg2 Qh1 Rg1 Qh4 Qf1 Qg3 Rh1 Qg1 Qb1 Qe1 Rf1 Qc1 Be4 Qc2 Qe1 Qd1 Bc2
1r1QQ2n/kRNNn2R/6pr/1qrp2P1/3P3N/1r1B1rP1/1bnq2bK/2B5 b - - 0 1 legal: proof: c4 e5 f4 exf4 b4 a6 b5 axb5 g3 Qh4 h3 Qg4 hxg4 bxc4 Rh5 c3 Rh6 Ne7 Rh1 Ng8 Kf2 Kd8 Kg2 b5 e4 f5 a4 h5 d4 d5 e5 c5 a5 Kc7 e6 Kb7 a6+ Ka7 g5 h4 e7 c4 e8N f3+ Kh3 b4 Nf6 b3 Qe1 f4+ Qe6 b2 Rh2 g6 Bd3 c2 Ra4 c3 Re2 f2 Qf5 f1Q+ Kh2 f3 Qe4 h3 Bb5 f2 Nd2 b1N Bd3 Nh6 Nh5 Nc6 Re3 Na3 Qf5 Ne7 Nf4 Rb8 Qg4 Rb3 Ndf3 Nf7 Bd2 c1R Re4 c2 Re6 Rg8 Ne5 Nh8 Be3 Qe2 Nd7 f1R+ Ng2 Rf7 Qe4 Rf3 Rb6 Qd2 Bf4 Qa5 Ne2 Qb5 Nc5 Bd7 Nc3 Bg4 Nd7 Bf5 Qe1 Be4 Kh1 h2 Nh4 Nc6 Kg2 h1R Qe3 Ne7 Qe1 Rcb1 Bc1 Rg7 Rc4 Rh7 Rcc6 Rh6 Rf6 Rhf1 Rf7 Rg1+ Kh2 Rgf1 Be3 c1Q Rh7 Nc2 Bf4 Qd2+ Qe2 Ka8 a7 Rfc1 Be3 Ng8 Bf4 Ba3 Be3 Bb2 Bf4 Qb4 Nb5 Ne7 Be3 Rf8 Bf4 Bg2 Qe5 Rb8 Qc7 Rf1 Qd8 Rf3 Be3 Qe1 Bc1 Qed2 Rf6 Kb7 Nc7 Qb5 Rc6 Rc3 Qe8 Rc5 Rd6 Rd8 Rb6+ Kc8 Re6 Ba3 Na6 Rb3 Rd6 Bb2 a8Q+ Qb8 Qa7 Qbb4 Qb6 Qb5 Qa5 Kb7 Re6 Rdc8 Qad8 Ka7 Rb6 Ra8 Nc7 Rb8 Rb7+
2rN2NQ/2q2k2/2rPpbnr/1K2RPrb/4Qpb1/3r1B2/2QR2P1/3nB1q1 b - - 0 1 illegal: No proof kernel
5K2/Q3n3/2pPRb2/Q1qNB1bn/b2b1Rp1/1Nk1Br2/rnbq1PP1/2R5 b - - 0 1 illegal: No proof kernel
4BB2/2Q1nb2/PBNr1n1q/R7/p3q3/2Ppb1kP/1N1nnrQr/Kn2R3 b - - 0 1 illegal: No proof kernel
3b3b/2nq2Qp/1p2Pr1q/8/1KB1b1R1/QbNr2br/N3PBPR/2kn1N2 b - - 0 1 illegal: No possible last move
2qn4/1Nn1qPq1/Pp2qr2/2N1BR2/1rkPK1B1/Qb2b3/4qp2/Rn1B3Q b - - 0 1 illegal: No proof kernel
3Q2r1/5pn1/2K5/1BnN3P/P1NbRb1n/R6p/1bn3rP/qkBQ1Nnq b - - 0 1 legal: proof: f4 a5 c4 h5 b4 axb4 f5 d5 f6 dxc4 Nf3 Bh3 Ng1 exf6 Bb2 f5 Bc1 f4 g4 h4 Kf2 Bg2 Ke1 Be4 Nf3 Bg6 Ng1 Bh5 gxh5 Ra3 Nf3 Ra7 Ng1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 b5 d3 g5 e3 c3 Be2 h3 Bg4 c2 d4+ Kc4 d5 Kb3 d6 c5 Kd5 c4 d7 f3 e4 c3 e5 f2 e6 f1N e7 Na6 e8Q Nf6+ Kc6 Rg8 Qf3 Ng3 Ne2 Bg7 Ng1 Nc5 Na3 Nf5 Nb1 Nh4 Qe1 Ne8 Qed1 Bd4 Bb2 Qf6+ Kd5 Ng7 Bf5 g4 d8N g3 Bg6 g2 Qdd3 c1B Qfe4 Bf4 Nf3 g1N Qf1 c2 Qe7 c1B Ba3 Bcb2 Bd3 Ra6 Bc4+ Kc2 Ne6 b3 Ne5 b4 Nc7 Re6 Qd8 Ree8 Ng4 Re2 Bb5 Rg2 Nd2 Qe5+ Kc6 Qe1 Ra2 Qa1 Qe2 Kc1 Nc4 Kb1 Qe6 Bbc3 Nd5 b2 Qe2 b3 Bb4 Kc1 Ra3 b1N Nge3 b2 Ra2 Na3 Nf1 Nc2 Ra3 b1Q Qd3 Bb2 Bd2+ Kd1 Qb3 Qc1 Qd3 Ne3 Qe2+ Kc2 Qg4 Qe1 Bc1 Kb1 Qf3 Nc2 Qd1 Qe4 Ng3 Ne2 Re1 Ng1 Nf1 Re2 Qb8 Qh1 Qd8 Rg2 Re4
1rbn4/3nbp2/N3bn1q/PRPrB2Q/4P1q1/3R1R1N/Q2p1nBK/4k2n b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kg2 Rh6 a4 Kd6 c4 Kc5 e4 g5 h4 b5 a5 d5 Qd2 d3 Be2 Kd4 c5 g4 Rh2 b3 Rh3 b4 Bf1 g3 Qe1 f3+ Kh1 f2 Ba3 g2+ Kh2 b2 Qe2 b3 Qd2 Rd6 h6 Qd7 h7 Be7 h8R Nf6 h5 Nc6 h6 Nd8 h7 Rb8 Qc2 Qg4 Nd2 b1B Be2 b2 Ndf3+ Ke3 Rh6 d4 Rh3 Ba2 Rb1 Bae6 Qc4 Rd5 Ne5+ Kd2 Ra1 b1Q Nc6 Ke1 Nb4 Qc1 Bd1 Qd2 Bb2 Qc1 Rb1 Qd2 Ne2 g1N Na6 Qe3 Nf4 f1N+ Kh1 Nf3 Qa2 Ne5 Bf3+ Qc1 Bg2 Ng3+ Kh2 Ned7 Ba1 Nh1 Rb5 Qe3 Bb2 d2 Bc3 d3 Be5 d1N Rg8 d2 h8Q Qh4 Rg3 Qe2 Rd3 Ndf2 Qh7 Qhg4 Rhf3 Qe3 Nh3 Qeg5 Qf5 Qh6 Qh5
5k2/2r1pNr1/1PQ2b2/pQ4qP/2bR3b/2B2nq1/1rBbb1PN/K1N2nR1 b - - 0 1 illegal: No proof kernel
1qb2K1n/R3pprN/3P1P2/4bQ1R/k1B3q1/1n1P3r/rB2b3/rr2BQ1N b - - 0 1 legal: proof: e4 d5 exd5 a5 b4 axb4 g4 h5 c3 bxc3 Bd3 hxg4 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 g5 Ke4 c5 Ke5 b5 h4 c2 f4 b4 a4 g3 h5 b3 h6 b2 f5 g2 d6 Kc6 h7 g4 a5 c4 a6 Kb5 a7 g3 Nf3 g1Q Kd5 g2 Rh3 Bg7 Ng5 Be5 f6 Nh6 Be2 Ng4 Rh5 Nc6 Qf1 Nd4 Nc3+ Kb4 Ra2 b1B Nd1 c3 Bb2 c1R Bc4 c2 Nf2 Nb3 Nh1 Qd4+ Kc6 g1R Qf5 Rcd1 Qf1 c1R d3 Bc2 Qf5 Ra1 Ra6 Rdb1 Ra2 Rg8 h8B Rg7 Nh7 Rg3 Ra5 Qe8+ Kc7 Qb5 Kd8 Qb8 Ke8 Bd1 Kf8 Rh3 Ra3 Be2 Ra2 Rg5 Bg7 Qe4 Bh6 Rg7 Ba3+ Ka4 Bd2 Nh2 Ba5 Nf3 Be1 Nh4 Qf1 Rb2 Qf5 Rab1 Ra1 Ra2 Bb2 Ng6+ Ke8 Nh8 Kf8 Qg4 Qf1 Qb6 Qf5 Rb8 a8Q+ Qa7 Qae4 Ra8 Qef4 Qb8 Qf1 Ra3 Bf2 Kb4 Bh4 R3a6 Ra5 R8a7 Rc5 Raa1 Rc7 R7a2 Be1+ Ka4 Ra7+
1nNR1N1R/B1nP2Kb/2r1r3/2NBp1p1/1Pr3qr/2Q3bP/rb6/1k1Q3q b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 Kg6 c5 b4 a5 f4 a4 f5 c3 d3 c2 f6 c4 h3 g3 b6 c3 b7 a3 f7 g2 Ra2 e3 Be2 Bf5+ Kg5 Nf6 Bg4 e2 Bf3 e1R Bb2 c1R Bd5 Ne8 Nd2 Qc8 Nc4 Re6 Nd6 Nc7 Nf3+ Ke3 d4 c2 Nd2 Kd3 Rh2 g1Q+ Rg2 Qd7 Nc8 Rh4 Ba1 Qh1 Nb3+ Ke3 Rf2 Bh7 Nc5 g6 Rb2 a2 Rf5 Bg7 f8N Be5 Rf1 Bg3 Rf7 Rg4+ Kh6 g5+ Kg7 Rh4 Rf6 Ra3 Rh6 Rc3 Rb1 Rc4 Bb2 a1R Bc3 Bd3 Rh8 Bh7 Rb2 Raa6 Ra2 Rac6 Ra8 Ra1 Be1 c1B Bf2+ Kf4 Bg1 Ra2 Bf2 Bb2 Bg1 Nba6 b8Q Kf5 Qa7 Nb8 Qaa4 Rf6 Qab3 e5+ Bf7 Kf4 d5 Qg4 d6 Re6 d7 Kf5 Qc3 Kf4 Nd3+ Ke4 Ba7 Nb5 Qcc2 Nc7 Nc5+ Ke3 Qa1 Kd4 Qcd1+ Kc3 Bg8 Rf6 Bd5 Rfe6 Qf3+ Kc2 Qg1 Bc1 Qgd1+ Kb1 Qc3 Nba6 Nd6 Qh5 Re8 Nb8 Nc8 Qg4 Qdb3+ Bb2 Rd8 Bg6 Qa4 Bh7 Qd1+
K6R/nr1P4/1QB1p3/npq1P2P/B1bn1B2/qn2N1b1/R4n1k/b2rQ1N1 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 g5 d5 cxd5 h4 g6 fxg6 Qb3 g5 Qa3 g4 Qg3 hxg3 d4 Kd7 Kd2 Kd6 Kd3 b5 Ke4 c5 f4 g5 h4 c4 a4 c3 h5 g2 f5 c2 e3 b3 a5 g3 f6 b2 a6 g4 a7 Qa5 f7 Bg7 f8Q Be6 Bd2 c1B Nf3 g1N Rh3 g2 Rh1 g3 Ne1 Ne2 Ra2 g1Q Nf3 g2 Na3 b1N Nc2 Nc6 Qe8 Rb8 a8B Na7 Bc6 Qa3 Rh3 Rh7 Rg3 Rd8 Rg6 Qf2 Rh6 g1N Bh3 Bb2 Bf5 Nh3 Ng1 Be5 Bc1 Rf7 Rh8 Bg3 Bg4 Ba1 Bd2 Nc1 Bd1 Nb3 Bc1 Nh6 Bd2 Nf5 Bc1 Kc7 d6+ Kc8 d5 Na5 d7+ Kc7 Bd2 Kd6 Bc1 Nd4 Bd2 Kc5 d6 Bc4 Bc1 Rb8 d8Q Rb7 d7 Kd6 Qb6 Rf5 Nb4 Rd5 Ba4 Ke6 Bd2 Kf6 Bc1 Kg5 Nc2 Kg4 Bd2 Bh2 Bc1 Kg3 Bd2 Rd6 Ke5 Qf8 e4 Nf2 Bf4+ Kg2 Ne3+ Kh1 Qed8 e6 Qh4 Nd2 Qg3 N2b3 Qh4 Nd1 Qe1 Qc8 Kf6 Qc7 Ke7 Nf2 e5+ Rd5+ Ke8 Qcd6 Kd8 Bg3 Qa6 Qdc5 Qb6 Rb8+ Kc7 Kh2 Qa6 Rb6 Qb7 Rd6 Kb8 Rd5 Ka8 Rd6 Qc7 Rb7 Qd1 Ne2 Qf1 Rd1 Qb6 Ned4 Qe1
Knr2Rq1/1B1Pn3/1q1p2QN/6QB/7q/RN1QP2q/b2Pp1kq/bb3r2 b - - 0 1 illegal: No possible last move
2N1K3/1b1p1P1B/R2pk1Nq/bQB1n1q1/1b1RP1Pr/r2N3r/n1Qr4/6r1 b - - 0 1 illegal: No proof kernel
1qr4N/1bPR1KbQ/q1nN4/1r2BQ1B/4p3/2p2n1n/1nPn1RP1/rkR5 b - - 0 1 illegal: No possible last move, all moves rejected
K1n3Bn/1NpbkqQQ/n2R2R1/6r1/3R1pn1/qPN1B3/Pr1bn2P/2b5 b - - 0 1 illegal: No proof kernel
Br2Rbb1/1pn1P2R/6b1/Qpb2Q2/N1P1q1q1/P1N1n3/K1n1B1k1/b1B1r3 b - - 0 1 illegal: No proof kernel
4nn2/4n3/PPRn2r1/1rn1b1pp/n2R1kPB/6n1/KN4Bb/1NQ1q1BQ b - - 0 1 illegal: No proof kernel
2Kb3b/P3B2b/1PR4p/1kQ1bNb1/2nP1Q1N/p1bqNb2/2B3r1/1n1r2R1 b - - 0 1 illegal: No proof kernel
2RKbk2/n4b2/nQ1n4/2n1N2B/R2r1P2/BrPq3Q/BNpqPbp1/4q3 b - - 0 1 illegal: No proof kernel
1b4q1/1R1BN1B1/3Nn2R/1Pb4q/bnP2Q1r/K1QrB1n1/P3p1kp/r4b2 b - - 0 1 illegal: No proof kernel
4r1NB/2qR1Q2/N4R2/PBnp1P2/bP4Q1/1Qrqq2p/Knq3b1/b4k1n b - - 0 1 illegal: No proof kernel
b1r3Q1/2b3QR/n3n2R/pb2r1PK/1NkN3B/RP1r3b/Ppqq2n1/4B3 b - - 0 1 illegal: No possible last move
K1B2nr1/n3k3/2Bbn2p/1N2P1qr/P2pq1RQ/3P2Q1/3Bn1rN/1b3R1b b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 g5 h4 a6 b5 axb5 hxg5 bxc4 Rh5 c3 Rh6 Ba3 Rh1 Bf8 Kf2 d5 Kf3 b5 g4 f5 a4 c5 e4 d4 d3 c2 e5 b4 g6 b3 g5 c4 g7 b2 g6 c3 Rh2 Ke7 Ra2 Nd7 Rh5 Bb7+ Kf2 f3 Bh6 c1N Rg5 c2 Qd2 f4 Be2 Nb3 Bf1 c1N Na3 b1B Ra1 Ne2 Nb5 Nbc5 Bh3 Ne6 Rg4 Rc8 Qe1 Rc2 Kf1 f2 Nf3 Bd5 Kg2 f1R Qg3 Rh1 Kf2 Qa8 Nh2 f3 Bd2 h6 Bg2 Ngf6 g8Q Nb6 g7 Nfd7 Qh7 Rg8 Qe4 Nc8 Qef4 Na7 Qh4+ Ke8 Qfg3 Bd6 Bh3 Ndf8 Bg2 Bba2 Rf1 Bb1 Bh3 Qd8 Bg2 Qg5 Bh3 Rh8 g8B Ke7 Bf7 Ra2 Be8 Rg8 Bd7 Rg1 Bc6 Rg2+ Ke1 f2+ Kd1 Ng1 Kc1 Ra1 Kb2 Bf3 Kb3 Ne2 Kc4 Be4 Rg1 f1Q Rh1 Qf5 Rf1 Bb8 Kb4 Bd6+ Ka5 Bf3 Ka6 Qe4 Kb7 Ra2 Re1 Rb2 Ka8 Ra2 Nf1 Rh2 Rd1 Bh1 Rc1 Rg2 Nh2 Rc2 Rf1 Rc1 Rf3 Rf1 Rf6 Rf5 Qf2 Ng7 Qfg3 Qge3 Rf4 Rh5 Bc8 Nge6 Rg4 Qg5 Rf1
1q2kr2/4nQ2/Rq1p1r2/2B2bb1/2p1RPR1/1PbQ1nr1/2NNBrPn/1K6 b - - 0 1 illegal: No proof kernel
3Q4/bQn2K2/3p1PR1/2q1q1r1/r2kr1B1/NR1PbQrb/1BNP3p/1n1q4 b - - 0 1 illegal: No possible last move
Nn2rN2/n1kqr1qr/R1p1b2P/B2rP3/1K2Pb2/n7/1R2b1p1/1QR2B1Q b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 fxe5 h6 Nf3 hxg5 Ng1 g4 e4 Kd7 d4 g5 Kd2 b5 a4 f5 h4 c6 d5 c3+ Kd3 b3 d6 g3 a5 b4 Kc4 g2 a6 f4 a7 b2 h5 b3 Ra6 c2 Rh2 g4 Kb4 g3 Nc3 b1R Qd5 f3 Ra3 f2 Na4 b2 Nh3 g1Q Ng5 Ne7 Qa5 Bh6 Rg2 Rh7 Be3 c1R Qb6 Rd1 Ra1 Rd5 Ne6 Bf4 h6 Rbd1 Rh2 b1N Bd2 Na3 Rc1 Qc7 Nf8+ Kd8 Nc5 Be6 d7 Nc8 Na4 Qg2 Qb5 Qb7 Nb6 Kc7 d8R Rdd7 Qd3 Rde7 Qb1 Qh3 Rd3 Qg4 Rb3 Qg7 Rb2 g2 Rh3 Bg4 Be1 Be6 Rhc3 Rd3 Rc5 Rd5 Ra5 Nd6 Ra6 Ndb5 Ka4 Qc8 Ba5 Qd7 Kb4 Qe8 Bd3 f1B Bc4 Be2 Bd3 Nd7 Bc4 Rc8 a8Q Na7 Bd3 Bd1 Bf1 Nb8 Qd3 Qd7 Qh3 Be2 Qh1 Rce8 Qb7+ Kd8 Na8+ Qc7 Qb5 Kc8 Nb6+ Kb7 Qd3 Qd7 Qb1 Kc7 Na8+
1Rbn1b1B/bq2rQ2/1P1Qq2p/1N5P/K3n1kq/2P1rQ2/2Rp4/1q2r1NB b - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 Ke7 e4 Ke6 h4 g5 f4 a5 e5 Kf5 h5 d5 c3 h6 Kc2 d3+ Kb3 d4 e6 g3 e7 d2 e8Q a4+ Ka2 d3 Bh3+ g4 Rh2 b3+ Kb2 g2 Ra3 Rh7 Qf3 d1R Qee2 d2 Qe8 Re7 Qfc6 Rde1 Qf7+ Nf6 Qd6 Nc6 Ra2 Ra6 Ka3 b2 Rh1 R1e3 Ne2 g1Q Bg2 Qe1 Ng1 g3 Be4+ Kg4 f5 g2 Bd5 Ne4 f6 Ne5 Kb4 Rb6 Na3 b1Q+ Ka5 Qd7 Rc2 Qa2 Ba8 Qae6 Bc6 Qb7 Bd5 Rc6 b6 Qh4 Nb5 a3 Ka4 a2 Ba3 a1Q Rh2 Qb2 Bc5 Qb1 Bd4 Rc5 Rh3 Nc6 Rf3 Nd8 Bc6 Rg5 Rf5 Re1 Rc5 Re5 Bd5 Bd7 Rc8 Re3 Rb8 Bc8 Nh3 g1B Bc6 Bh2 Ng1 Ng5 Bh1 Ne4 Qg8+ Ng5 f7 Re1 Qh7 R5e3 Qd3 Ne4 Bh8 Bg7 f8Q Bf4 Qf7 Bf8 Qc6 Bc7 Ra8 Bb8 Qcd6 Ba7 Rb8 Rd1 Qdf1 Rde1 Q1f3+
n5k1/1b1K1NB1/p3N2P/2R3r1/2nQ3p/rqbNbP2/2q1bBQP/1R2qn2 b - - 0 1 illegal: No proof kernel
3nQ1rQ/2b2r2/pP1P2BK/kq1q2N1/1p1P4/nr1NQ1b1/R3bn1B/3R3b b - - 0 1 illegal: No proof kernel
N2n1rr1/n4Rnp/5P1q/1p6/1Rb1q1kP/nP2Q1QN/1K1b3r/1N1B1Bb1 b - - 0 1 illegal: No possible last move
n1Q1b1q1/3rR1PQ/1qp1B1qB/2N2bq1/5b1r/Kn3kBP/Rp1PN3/2r5 b - - 0 1 illegal: No proof kernel
b7/R2qBnP1/pr3RNQ/1qP2k1r/4b3/2pQq1bP/R2rN3/rBn2K2 b - - 0 1 illegal: No proof kernel
R1nb3B/1r1bNnp1/1nN2r1R/pP3r1B/P4PK1/Q2R4/2bk3q/5qQr b - - 0 1 legal: proof: d4 b5 c4 bxc4 g4 f5 g5 e5 dxe5 f4 Be3 h6 Bc5 hxg5 Be7 g4 Bh4 Ne7 Bg3 fxg3 Qc1 Ng8 Qc2 Nh6 Qd1 Ng8 h4 Ke7 e4 Ke6 Ke2 d5 a4 a5 f4 c5 b4 d4 b5 c3 h5 c2 h6 c1R h7 c4 Bh3 g2 Ra2 d3+ Kf2 d2 Kg3 c3 Qf1 d1B Nd2 c2 Qf3 Nd7 Nf1 Ne7 Kh4 Rb8 Ne2 g1R Kg5 Nb6 Bg2 g3 Rh3 Rh1 Rh5 Qd2 Qa3 Bd7 Ne3 Nec8 Nd5 Be7+ Kg4 Rf8 h8B Rf6 Rh6 Rb7 Bf3 Bd8 Ne7 g2 Rb2 g1N Rb3 Nh3 Rd3 Ng5 Nd4+ Kf7+ Kg3 Qe2 Ndc6 Ke6 Kg4 Qh2 Be2 Rb1 Bf3 c1Q Be2 Bc2 Bf3 Qf1 Be2 Kf7+ e6+ Kf8 e5 Rc1 Nf5+ Kg8 e7 Kf7 e8R Rd1 Rf8+ Ke6 Nfe7 Nf7 Rb3 Rd5 Rd3 Na7 Rg8 Bc7 Ra8 Bd8 Bf3 Nac8 Be4 Qc1 Bg6 Qf1 Bh5 Rd4 Nf5 Kd5 e6 Kc4 e7 Rd5 e8Q Rc5 Qe3 Re5 Rd2 Rd5 Qg1 Rc5 Qc1 Kc3 Rd6 Rd5 Qa1+ Kd2 Qa3 Be8 Nfe7 Bd7+ Re6 Rdf5 Re3 Be8 Rh3 Bd7 Rd3+
2nn4/1Q2kp1B/pr1qNrq1/rPRn4/R2r1P2/QK2B1N1/2N1P2b/6qb b - - 0 1 legal: proof: d4 b5 b4 c5 h4 g5 a4 gxh4 d5 cxb4 axb5 e6 Qd3 exd5 Qd1 d4 Kd2 h5 c4 d5 Kc2 h3 g4 d3+ Kb3 h2 g5 d2 f3 h4 c5 d4 c6 h3 g6 d3 g7 Ke7 c7 Rh6 Ra2 Rb6 Rc2 Nc6 Nc3 Bb7 c8Q Qd6 Ba3 Nd8 Kc4 b3 Qc1 d1N Ne4 b2 Bc5 b1Q Bg2 d2 Qa3 Nc3 Ng3 d1R Be3 Nd5 Rc1 Qe4+ Kb3 Qg6 Rc5 Rd4 Qb8 a6 Qa7 Rc8 f4 Rcc6 Qb8 Ba8 Nf3 Bb7 Rf1 h1Q Ra1 h2 Ng5 Qg1 Be4 h1R Ne6 Rh3 Nh5 Rf3 Ng3 Rf1 Ra2 Ra1 Rac2 Ba8 R2c4 Bb7 Qc1 Ra5 Ra4 Kd7 Qa1 Nge7 g8N Nc8 Nh6 Ke7 Qa3 Bg7 Qa8 Bf6 Ng4 Bh4 Nf1 Bg3 Qb8 Bh2 Ng3 Qh5 Bh7 Ba8 Bf2 Qg6 Ne3 Bb7 Nc2 Qc7 Nf8 Rf6 Ne6 Qd6 Qa8 Nc3 Be3 Bh1 Qc6 Nd5 Qb7+
n2b4/q1R1Pq2/r1r1BkpK/3Qb1P1/5r2/2P1Q1Nn/nB2nNNp/3bR3 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 cxd4 h5 b5 axb5 Qh4+ Kd2 Qxh5 Ke1 Qh2 Kd2 Ke7 b4 d5 e4 a5 b6 f5 e5 h5 e6 h4 b7 h3 b5 a4 b6 a3 Bc4 g6 Qe2 a2 g3 f3 Qg2 f2 Ba6 f1R Ne2 d3 Ke3 d2 Qf2 d1N+ Kf4 d4 Kg5 d3 Nd4 d2 Be2 f4 Bb2 f3 Qg1 f2 Nb3 Nc6 b8N Nb4 b7 Nc3 Nc5 d1N Bg4 Ne2 Nd3 Nf6 Nc3 Nfd5 Ne4 Nb6 Bf5 Ra6 Ne1 Na8 Rc1 a1B Nd7 Na2 b8Q Qg2 Qb6 h2 Ndc5 Bg7 Qb3 Be5 Qc4 Rf8 Bg4 Rf4 Qd5 Bc7 Kh6 Bd8 Bh3 Bd7 Bf5 Ba4 g4 Qf3 Qg3 Qe3 Ncd3 Qa7 Ng2 Rg1 Qe3 f1Q Ng3 Nf2 Re1 Nh3 Rc1 Qf3 Nf2 Rd1 Re1 Rc6 Ba3+ Kf6 e7 Be5 Bb2 Rd3 Be6 Ra3 c3 Bb3 Rcd1 Raa6 Rd4 Bd1 Rc4 Rd6 Rc7 Rdc6 Rh1 Qe4 Re1 Qf5 Bc8 Qe6 Bd7 Qg8 Be6 Qf7 g5+
Rb4nq/2bNP3/p1r1kb2/BqP2qQB/P2rp3/3r2r1/4Q2R/K2nNR2 b - - 0 1 legal: proof: f4 c5 g4 h5 b4 cxb4 e4 hxg4 f5 d5 Nc3 e5 Nb1 Be6 fxe6 dxe4 d4 Ke7 Kd2 b5 h4 g5 a4 f5 c4 f4 Kc2 a6 Kb2 g3 h5 e3 c5 b3 d5 e4 h6 f3 h7 b4 Rh2 e2 Ra3 e1B Bf4 f2 Bh3 f1Q Re2 g2 Ka1 g4 Rd2 g3 Bh6 b2+ Ka2 Nd7 Be3 Qf5 Rc3 b3+ Ka3 Ndf6 Rf2 Ng4 Qd4 Rc8 Bd2 Rc6 Qc4 Bg7 Rc1 Ne3 Qe2 Bf6 Ba5 Nd1 Nc3 b1Q Nf3 g1B Rh2 b2 Bg4 g2 Bh5 Bg3 Ne1 Bb8 Kb3 Qd3 Ka2 Qb5 Ra1 b1R d6+ Kf8 d7 Rb4 Nd5 Rd4 Nb6 Ke7 Rb1 Be3 Ka1 g1R Rc1 Bef4 Rb1 Qc8 d8R Bfc7 Nd7 Rg3 Rc1 Nh6 Rf8 Rhg8 h8Q Rgd3 Qh7+ Rg7 Qg8 Rgg3 Qg5 Ng8 Rc3 Rd2 Rf3 R2d3 Rf1 Qe8 Bf3 Qh5 Rd8 Qh8 Bh5 Ba7 Ra8 Bab8 Bf3 Ke8 e7 Kf7 Bg4 Ke6 Bh5
1n1b1B2/1qR1P1p1/b1pK3Q/Rr1B4/1n1b2N1/4q1B1/1Pqb2QP/rn1Nk3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 Kd7 e4 Kd6 d4 f5 e5+ Kd5 e6 Ke4 b6 a5 d5 c3 b7 g3+ Kg2 a4 d6 c2 d7 c6 Bb5 a3 Ne2 f3+ Kf1 f4 Qd6 a2 Qd1 f2 Kg2 f1N Bd2 c1B Bc4 f3+ Kg1 f2+ Kg2 Qe7 d8B Nf6 Bb4 Ke3 Qd6 Bd2 Ng1 Rh5 Nf3 Rb5 Bd5 Ke2 Ne5 Ke1 Kf3 g2 Bc7 g1B Ng4 Qd7 Qg3 Be7 Qg2 Bd8 Bf8 Ra7 e7 Ra3+ Bb3 Nd5 Ke4 Nb4 Bd5 Ra7 Ke5 Qf5+ Kd6 Qc2 Ne3 Ra8 Nd1 Ra4 Na3 Ra6 Nc4 Ra4 Rc1 a1Q Ne5 Qa3 Ng4 Qe3 Ra1 Ra6 Ra3 Ra8 Rd3 Ra1 Ra3 Bc3 Ra6 Nd2 Ra5 f1Q Ra7 Nb1 Ra5 N8a6 b8Q Bd2 Qa7 Qff2 Qd4 Bb7 Qf4 Nb8 Ra7 Ba6 Qh6 Nd7 Bb8 Qb6 Rc7 Qb7 Ba7 Nb8 Bc5 Qf3 Bf2+ Ke2 Bg3+ Bf2 Qgh3 Bd4 Rf1 Qe3 Rf5 Qf2 Qg2 Ke1 Be6 Rb6 Ra5 Rb5 Be5 Qg3 Bd5 Qe3 Bg3+
1q4qr/1b2P1pP/1K1P4/BBQ1n2k/1n2r3/b2R4/Qr1RNN1p/bqQq4 b - - 0 1 illegal: No proof kernel
br1n4/1q2PP1p/B2P2N1/3Q1n2/Kbr2rnR/1p2Bk1q/2Q1N2R/4Rb1b b - - 0 1 illegal: No proof kernel
r2bNQ2/2PrQ1N1/1q6/R4P2/1nnpRq2/1K3kNr/n1rP1pBb/1bB5 b - - 0 1 illegal: No proof kernel
1rb2r2/R1p1n1qk/1P2P1N1/3BQqNK/B1qp4/3n4/1Bbn2PQ/4bR1n b - - 0 1 illegal: No possible last move, all moves rejected
1nb3k1/1pqQPN2/1BQ1q1P1/Q2p3P/2R2r2/2Rn2qr/K1BNr3/b2n1q2 b - - 0 1 illegal: No proof kernel
RqN3N1/1p2P2P/Bq2qQQB/1q2p1Bk/r1b5/Pn2b3/K1n2rR1/1r4b1 b - - 0 1 illegal: No proof kernel
2rr1q2/P2q2QP/1krbqR1P/5b2/1pNR2Np/n1Qq1n2/B7/KR1b2B1 b - - 0 1 illegal: No proof kernel
BN1r1Qq1/nrN5/2Q1R2B/1P1r2b1/5rRr/r1pPp1kb/Q2n2P1/3K2b1 b - - 0 1 illegal: No possible last move
2Q4R/1QBB2r1/RprP3r/r1RP2b1/q3n1rN/1b2N3/P1n1rp2/1K1k3b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 c4 gxh4 f5 d5 cxd5 e6 Qb3 exf5 Qd1 f4 e4 Kd7 g4 Kd6 d4 f5 Kd2 c5 Kc2 h5 g5 b3+ Kb2 b6 g6 c4 g7 f3 Be2 f2 Rh2 f1R Rh3 f4 Rc3 f3 Bh6 h3 Bg5 h2 Rc2 h1B Bh4 f2 Bg4 c3+ Kc1 Ra5 Rd2 c2 Re2 b2+ Kd2 c1R Bf6 h4 Na3 b1R Qc2 h3 Kd3 h2 Qd2 Rc6 Nc2 Rbe1 Nf3 Rh6 Re3 Na6 Nh4 Be7 Rc1 Re2 Bd7 Rg1 Rg3 Rg2 Ne3 Qe8 Rc5 Nb4+ Kc3 Ba6 Kb2 Nc2 Kb1 Bc4 Bg5 Nf6 g8Q Qa8 Qc8 Bb3 Qc3 Rg6 Qb7 Rg7 Rh3 Rg4 Rf3 Bd8 e5+ Ke7 e6 Kd6 e7 Ne4 e8R Bf6 Bh6 Bg5 Qd2 Qa6 Qc1 Qb5 Rf7 Qa4 Rb8 Bg2 Rh8 h1R Rff8 Rh2 Ra8 Bh1 Nhg2 Bf4 Bg5 Rh6 Bd8 Bg5 Bc7+ Ke7 d6+ Kf6 d5 Ke5 Rag8 Kd4 Nh4 Kd3 Rb8 Re6 Ra8 Rh6 Qa3 Kd2 Ra6 Ke1 Qb2 Kd2 Qf6 Ke1 Qf8 Kd2 Qfc8 Ke1 Nef5 Kd1 Ne3+
q2b2K1/B1rk1p1N/b1b5/n1rn1N1B/rQQ1bR1P/4BPP1/2p5/Rb4b1 b - - 0 1 illegal: No proof kernel
1b2n3/Q1nPP1B1/b4R2/2pB2R1/1k2Q1N1/1N1rprrb/KPbN2b1/b3q3 b - - 0 1 illegal: No proof kernel
1b4n1/b2pP3/1k1Q2N1/p2P2Rq/RbQr4/3n1b2/1PKbBrN1/r1b3BQ b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 b5 c4 bxc4 Kf2 h5 Ke1 hxg4 Qb3 Qg5 Qd1 Qb5 axb5 Ba6 Na3 Bb7 Nb1 Bc8 e4 Kd8 h4 f5 d4 g5 Kd2 c5 h5 Kc7 h6 f3 h7 f4 e5 g3 e6 g4 Qa4 g2 Kd1 f2 Na3 f3 Rb1 c3 Ne2 g1B Rh5 g3 Qa6 c2+ Kd2 c4 Rd5 c3+ Kd3 g2 Bg5 c1B Ra1 c2 Nc4 Bb4 e7 Nc6 Ne3 Ne5+ Ke4 Bb7 Qa3 Kb6 Qc3 Nd3 Qc4 Bcd2 Nf4 c1B Ng6 Bh2 Ra4 g1B Ng2 Bb8 Be2 f1Q Be3 Qd1 Bf2 Ba6 Be3 f2 Rg5 f1R d5+ Bc5 Bf4 Bcb4 Bh2 Bgc5 Bg1 Rf2 Bf1 Qh5 Be2 Nh6 Ra5 Rc8 h8Q Ng8 Ra4 Bd4 Qa2 Rc4 Qh7 Kc5 b6 Bb5 b7 Kb6 Ra3 Ba4 Qh8 Bd1 Ra4 Rc3 Qc4 Ra3 Qe5 Ra1 Qh2 a5 Qh1 Ra7 Bf1 Bg4 Be2 Bf3+ Kf5 Bbf4 b8Q+ Rb7 Qf8 Bb8 Qf6+ Ka7 Qd6 Rb5 N2f4 Kb7 Ng2 Bda7 Qg3 Kb6 Qgf4 Bg4+ Ke4 Bf3+ Kd4 Rc5 Qd6+ Rc6 Qc3 Bc5+ Kc4 Ba3+ Kb3 Bb4 Qdh2 Rc7 Kc2 Rc4 Qg3 Rg4 Qc4 Rd4 Qd6+
5rbn/pnP2nNr/R1Bq1N1Q/PR1nBp2/3P4/b1n2B1K/1b6/kn2Q3 b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qb3 Qd4 Qd1 Qd8 Kf2 Kd7 e4 Kc6 a4 h5 d4 b5 g4 f5 Kg2 h3+ Kh2 b4 a5 Kb5 c6 f3 c7 b3 g5 Kb4 e5 f2 g6 h4 e6 c3 e7 b2 e8Q c2 g7 Kb3 Qe5 Na6 Bd3 Ne7 g8B+ Be6 Qde2 Ng6 Nc3 b1N Qg4 Ba3 Nb5 Qd6 Bf1 Rf8 Be2 Nc5 Bf4 Kb2 Qg5 c1B Qe7 Nb7 Bg3 Rh7 Bd1 Nh8 Qe3 Bf7 Ne2 f1N+ Kg1 h2+ Kg2 Be6 Qh6 Ne3+ Kh3 Nd5 Be5 Bf7 Rg1 h1N Nec3 Ng3 Bf3 Ne2 Ne4 Nec3 Rg6 Be6 Nf6 Bf7 Kh2 h3 Kg3 h2 Kh3 h1N Qe8 Qe6 Nd6 Ng3 Qe7 Nge4 Nde8 Qc6 Ng7 Ned6 Qe8 Qc5 Qe7 Be6 Bf7 Qc6 Be8 Bg8 Qe6 Qc5 Bc6 Ndf7 Qe7 Qd6 Qe8 Nd2 Rb1+ Ka2 Rb5 Ka1 Bf4 Bab2 Qe1 Ndb1 Be5 Ba3 Rb6 Bcb2 Ra6 Nb6 Rg2 Nbd5 Rc2 Ne2 Rc5 Nec3 Rb5
2B4k/4Kn2/Nq2bRb1/1b2P1PR/r3b1Qb/N1NrB3/1pQ2p1P/1n2r1r1 b - - 0 1 illegal: No possible last move
1Q1n2rQ/3nrbr1/n1pKB3/4PN1q/1rP1R1B1/Rpn4P/3NQ3/b5kr b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Bf4 g5 Bg3 hxg3 Qd5 g4 Qd3 Qh4 Qd1 Qd8 Kd2 Ke7 Ke3 Ke6 Ke4 g5 f4 d5+ Kd4 Kf5 c4 b5 a4 c6 e3 b3 e6 b2 a5 g2 h3 g3 e7 g4 Kc5 Ke4 a6 d4 f5 d3 f6 b4 a7 d2 f7 Bg7 e8Q+ Be6 f8Q Nh6 Qff7 Qa5+ Kd6 Rg8 Qh5 Nf7+ Ke7 Na6 Qh8 Qh5 Qd7 Nd8 Rh2 Bf7 Na3 b1R Qa4 d1N Qd2 Nc3 Ne2 Kf3 e4 Kf2 Nd4+ Kg1 Qe2 b3 Qb4 Re1 Kd6 Rb8 a8B Bf6 Qa5 Rb4 Qb6 Nb1 Qd1 Kf2 Rh1 g1N Qd3 g2 Qb8 g3 Bb7 Nf3 Nf5 g1R Bc8 g2 Be2 Ne5 Bf3 Re2 Qd2 Rd1 Re1 g1R Bd7 R1g7 Bg4 Nc3 Ra2 Na4 Nb1 Kg2 Ra3 Rc1 Be6 Nd7 Bd5 Ba1 Qe3 Nc3 Nd2 Rf2 Qd3 Rf4 Re3 Rh1 Qe2+ Kg1 e5 Bg6 Nh6 Rff7 Re4 Re7 Nf5 Bf7 Be6
1N1r4/2K1k1P1/Pr1B1rqp/1b1p1b1B/RQRnP3/1R4rn/3b2r1/2N1Q2b b - - 0 1 illegal: No possible last move, all moves rejected
1b1K1b1r/2N1np2/1P1nP2p/3RBNnb/4R1n1/1BR3P1/1Q2qr1Q/1bnk4 b - - 0 1 illegal: No possible last move
nb1QKnq1/1np1B3/PbP5/2Nbb3/1P1N3R/p4n2/1rn1Qk2/rNR4B b - - 0 1 illegal: No proof kernel
1N4r1/2pnP1qn/1rQn2kR/N7/QP1nqB2/K1p2B2/n1BP2bn/2R3b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 e4 a5 g4 h5 b4 f5 e5 Kf7 b6 f3 e6+ Kg6 g5 f4 b7 f2+ Ke2 f3+ Ke3 a4 Qb3 h3 Qc3 a3 Ke4 a2 Qe5 h2 Qc3 h4 Qe5 h3 Qd6 Ra6 Kd4 Qd7 Kc5 Rb6 Ba3 Qg7 Bg2 f1N Bb2 f2 Bd4 c3 Bf3 Nf6 Be3 Rg8 Ne2 Ng3 Kc4 f1N Kb3 Nh7 Ka3 Nd7 b8Q Ne4 Bf4 Bb7 Qc6 Bc5 e7+ Nd6 Qa7 Bg1 Nd4 Ba8 Qaa4 Bb7 Kb3 Ba8 Na3 Bb7 Rb1 a1N+ Ka2 Nb3 Nc4 Nc1+ Ka3 Na2 Na5 Ba8 Qc4 Bd5 Ndc6 Be4 Nb8 Ba8 Be2 Bg2 Re1 Ne3 Bd1 Nef5 Qcc6 Nd4 Bf3 Bf2 Rhg1 h1N Rc1 Ng3 Rh1 Bg1 Rh2 Nf1 Rh1 Kf5 g6 h2 Ra1 Qh8 g7 Kg6 Rb1 Rc8 g8B Qg7 Bb3 Rg8 Rd1 Be3 Rg1 h1Q Rc1 Nh2 Rge1 Bg1 Re5 Bf2 Rh5 Qe1 Rh3 Qe4 Bc2 Bg1 Rh6+
8/1p2b2P/2Bnbn2/1Pk1N1P1/KRn1p3/2B1bn1b/1rrR1Rb1/1Qq2NQ1 b - - 0 1 illegal: No proof kernel
b4n1R/1r1Q1n2/3b3p/N7/nB3r1P/r1qBKPNp/1P2b1bN/1k1Q2Rn b - - 0 1 illegal: No possible last move
1R1kB2N/3nbK1P/n1br1Np1/1Pn5/p3Q1B1/r2r4/PqRr2Q1/bn5R b - - 0 1 legal: proof: d4 b5 c4 bxc4 g4 f5 g5 e5 dxe5 f4 Be3 h6 Bc5 hxg5 Be7 g4 Bh4 Ne7 Bg3 fxg3 Qc1 Ng8 Qc2 Nh6 Qd1 Ng8 Kd2 a5 Kc3 d5 Kd4 c5+ Ke3 g6 Kf4 g2 h4 c3 b4 d4 e4 d3 h5 g3 h6 c4 b5 c2 f3 c1B+ Nd2 c3 h7 c2 e6 Bb2 e7 c1N Kg5 Qd4 e5 Bb7 f4 Nb3 f5 Na6 f6 Bc6 Qc2 Nbc5 Nh3 g1R Rc1 g2 Ne4 d2 Be2 d1R Bg4 Ba1 Qd2 Qb2 Rc2 a4 Qf2 Rd6 Qg3 Rb1 Qh2 g1N Qg2 Kf7 e8R Be7 Rd8 Ne2 Rb8 Bd8 e6+ Ke8 e7 Nc3 Nhf2 Rbd1 Nd3 Nb1 Ne5 R1d3 Nf7 Re3 Ng3 Ra3 Nh5 Ra7 Qe4 Rad7 Qg2 Nh6 Qe4 Rf8 Nh8 Ng8 Qg2 Rdd3 Qe4 R7d6 Qg2 Re6 f7+ Kd7 Qe4 Nf6 e8B+ Kc7 Qg2 Nfd7+ Nf6 Be7 Kh6 Rg8 f8Q Red6 Qf7 Rd2 Qc4 Rf8 Qce4 Rad3 Nh5 Rff3 Nf6 Ra3 Kg7 Rfd3 Rb7+ Kc8 Kf7 Kd8 Rb8+
3q2R1/Knk2Prn/pr2n3/4b3/Bn1b1Q1p/P2R3N/1rQbP1r1/NQB5 b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h3 g5 Qb3 g3 Qb5 g2 Kd2 g4 Ke1 g3 Qb3 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bd6 Bd2 Be7 Bc1 Bf8 Kd2 c5 f4 d5 b4 Kd7 f5 h5 b5 a6 b6 d3 Ke3 h4 g5 d2 g6 d4+ Ke4 d3 Kd5 c3 f6 c2 a3 c4 b7 c3 g7 Rh7 f7 Nc6 b8Q Nd4 Bb2 c1N Nh3 g1B Qe5 c2 Qh5 g2 Kc4 Ne6 Rh2 Na2 Nc3 c1B Ne4 Nb4 Nef2 Nf6 g8Q Rg7 Qh6 Kc7 Ng4 Bd6 Qgh7 Be5 Ne3 Rb8 Qf4 Rb6 Qc2 d1N Rh1 Bd2 Bc1 Bf2 Rg1 Nc3 Rb1 Nce4 Rb3 N4c5 Qb1 Ng8 Nc2 Nf6 Na1 Nb7 Rc3 Bd4 Qc2 Be1 Qhe4 d2 Rd3 d1R Qh7 Bd6 Qhf5 Nh7 Qb5 Na2 Qbb1 Bd2 Kd5+ Kb8 Kc4 Rb2 Kd5 B6e5+ Kc6 Kc8 Rh1 g1R Bg2 Rdf1 Bf3 R1g6 Rg1 Rf2 Bd5 Rfg2 Bb3 Rh6 Ba4 Qe7 Qc5 Nb4+ Kb6+ Qc7+ Ka7 Rhg6 Bc6 Qd8 Ba4+ Nc7 Bb3 Rb6 Qcc2 Kd7 Ba4+ Kd6 Qh6+ Ne6 Qf4 R7g5 Bc6 Rf2 Rgg3 Rg2 Rg4 Kc7 Rgg3 Rf5 Rg6 Rfg5 Rg8 Rg7 Ba4+
k5q1/3p1bb1/R2BbQ2/n1NP1r2/2Pn1P1n/1pr1NrBK/5b2/1R1B1nQ1 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 f5 a4 fxe4 axb5 c5 Ra2 cxb4 Ra6 Bh6 Ra1 Bf8 c4 h5 d4 a5 f4 e5 Kf2 e3+ Kf3 e2 g4 e1R Kg2 a4 g5 b3 g6 e4 b6 h3+ Kh2 h4 g7 e3 b7 e2 Qd3 a3 Bg2 a2 Qg3 Rf1 Ba3 e1B Bb2 Bf2 Qc3 Ne7 g8Q Nbc6 b8B Bb7 Qh7 Bg7 Qe3 Ra5 Qe1 Rf5 Ba7 Na5 Qh6 Bd5 Qe3 Be6 Qf3 Ng6 Qd5 Qc8 Nf3 Kd8 Bc5 Kc7 Nfd2 Kb8 Bc3 Qg8 Ba3 Rc1 Bcb4 Rc3 Qc5 Rf3 Rf1 Ka8 Nc3 Rh7 Rab1 a1N Nd5 Nc2 Ne4 Rh8 Be1 Rc3 Kh1 h2 Bf3 Bf7 Kg2 h1B+ Kh2 h3 Bd1 Nh4 Ne3 Bg2 d5 Nd4 Qcb6 Bf3 Qg5 Bg4 Qgf6 Rh6 Nc5 Rh8 Kh1 h2 Rg1 Bh3 Rg6 Rhh5 Bb4 Rhg5 Ba3 Rg3 Bb4 Rf3 Ba3 Bg1 Bg3 Bf2 Bb4 Rh5 Ba3 Bhe6 Rh6 Rf5 Bb4 Ng6 Kg2 h1N Kh3 Nh4 Na4 Be8 Bd6 Bg6 Nc5 Bgf7 Qb4 Rc2 Qe1 Rc3 Qg1 Nac6 Kg4 Na5 Bh2 Ng3 Kh3 Nf1+ Bg3 Qh8 Rg6 Qg8 Bf8 Rh5+ Qf5 Rg5 Qg4 Bf5 Ra6+ Kb8 Be7 B5e6 Bf8 Rf5 Qg5 Ng6 Qf6 Nh4 Rc6 Ka7 Bd6 Ka8 Ra6#
N2Q1BK1/2Pr3B/p2NR1b1/n1pkR3/n1b2Q2/r3b1n1/PP2n1bq/R2r4 b - - 0 1 legal: proof: f4 g5 h4 gxh4 c4 e5 c5 exf4 d4 b6 d5 c6 dxc6 bxc5 Kf2 Ke7 Kf3 Ke6 Kg4 d5 Kh5 f5 g4 f3 e4 d4 g5 h3 e5 h2 g6 d3 c7 f4 g7 d2 Nh3 f2 Qe1 d1R Qb4 f3 Qe4 Nd7 Rg1 h1B Qb4 Bg2 Qb7 Nb6 Bb5 f1B Qc6+ Qd6 Nd2 f2 Rh1 Ne7 Kh6 Na4 Qe4 Bc4 Re1 f1N Nf2 Nc6 Qf4 Kd5+ e6 Ng3 Nfe4 Na5 Re2 Qe5 e7 Bf5 e8R Bg6 Re6 a6 Re1 Ne2 Nd6 Rd8 Be8 Be7 g8Q Rd7 Bf7 Bh4 Qd8 Bf2 Bg8 Be3 Rh1 Bf7 Re1 Qh5+ Kg7 Qh2 Re4 h5 Bh7 h4 Re6 h3 Re4 Bd3 N2c4 Rf8 Re6 Bdg6 Bd2 Bg8+ Kh8 Rf5 Bc3 Rg5 Bg7 Rg3 Bf8 Bf2 Re4 Ra3 Re6 Be3 Nb6+ Kc6 Re7 Bc4 Na8 Kd5 Kg8 Qg1 Rc1 h2 Ra1 h1N Re4 Qh2 Re6 Nhg3 Re4 Ng1 Re6 Bf2 R1e3 N1e2 R3e4 Be3 R4e5+
1rbq1Q2/n1p4r/3b1p2/P1Q5/NNb1Pk2/1P2RBBR/K1N2bn1/1n3r1n b - - 0 1 illegal: No proof kernel
B1r5/Np2bPr1/5Bbq/nP2Knb1/nn2p2k/bR1Pr3/1QR4N/B5Q1 b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 cxd5 g5 Ba6 gxh4 Bc4 a4 Bb3 axb3 Ke2 Kf7 Ke3 Kf6 Kf4 c5 a4 e5+ Ke3 Kg5 g4 h5 b5 b2 f3 h3 d6 c4 d7 h2 a5 h4 d3 h3 a6 c3 a7 c2 f4+ Kh4 f5 Nf6 g5 Ba3 g6 Qf8 d8B Qh6+ Ke2 e3 Kf3 e4+ Ke2 Rg8 g7 Nc6 Nd2 b1N Nf1 Na5 Bb2 c1B Qc2 Be6 Qd2 Rc8 a8B Bf7 Ra2 Bg6 Ba1 Be7 Qb4 Ba3 Qb2 Nd5 f6 Nb4 f7 Bg5 Bf6 Nc3+ Ke1 e2 Kf2 Na4 Nf3+ Kg4 Ne5+ Kh4 Nc6 e1B+ Ke2 Bd2 Rg1 h1R Na7 h2 Rg2 Rg1 Rf2 h1N Nh2 Rh8 g8Q Rg3 Rf1 Rh7 Rb1 Be3 Qg7 Bc5 Qg8 Re3+ Kd2 Nb6 Kc3 Be7+ Kd4 Ng3 Ke5 Nf5 Qf2+ Kh5 Rc2 Rg7 Rb3 Na4 Qg1 Kh4 Qd8 Rg3 Qdd4 Re3 Qb2
1N5n/P2R1BN1/Brn1p3/3Q1b1K/1P1b1brR/1P3n2/pn2Qr1k/4B1rq b - - 0 1 illegal: No possible last move
2r1Q1Q1/pK3R1P/1PBNQ3/3n1r2/P1N5/1b4b1/2p1rn1B/bk1qbRnr b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 c4 b5 d3 bxc4 Qa4 cxd3 Qb3 Bb7 Qd1 Bc8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 Ke4 b4 d5 a4 g5 h4 c5 f4 e5 h5 c4 f6 g3 h6 c3 h7 d4 f5 g2 f7 d2 f6 d3 Rh2 g4 Nf3 g1B Na3 g3 Ra2 g2 Qb3 d1R Bb2 d2 Nc2 Bg7 f8Q Re1 f7 d1R Bc4 Ne7 Bd5+ Kd3 Ng5 e4 Rh1 e3 Be6 e2 Qa3 Nd7 Bb3 Bh2 Ne3 g1N Qe8 Ne5 f8Q Bg3 Bd5 Be6 Ka6 Rc8 b5 Ng4 b6 Nf2 Bc6 Bb3 Nf7 Nd5 Nc4 Kc2 Nfd6 Kb1 Qg8 c2 Kb7 Rf1 Be5 e1B Rh5 Rd2 Rf5 Re2 Rf7 Bf6 Qc5 Bg7 Bf4 Ba1 Qce3 Qd7+ Ka6 Qg4 Q3e6 Qf3 Be5 Qd3 Kb7 Qd1 Qgg6 Rf8 Qg8 Ngh3 Ra3 Rh1 Bf4 Ng1 Ra2 Bh4 Bh2 Bg3 Ra3 Ba2 Raf3 Bb3 Re7 Rf5 Rf7 Nd3 Rf1 Nf2 Qe3 Bf6 Q3e4 Ba1 Q4e6
1B1Q1n2/pP1qQ2P/5rb1/4nN2/1p1rk3/bRrP3r/1b4nB/1K1Bn1RN b - - 0 1 illegal: No possible last move, all moves rejected
1Q3rq1/2b3rQ/1N5P/Prn1nb1k/p3pN1q/2KR1b1N/2PR1b1r/BB6 b - - 0 1 illegal: No proof kernel
4q1BB/qQ3r2/1n1k2P1/q1pr4/4qNPr/PbQ2R2/1Rrp2n1/1QbK1N2 b - - 0 1 illegal: No proof kernel
BRbnK2n/6Q1/qP4r1/1r2Nk2/1b4Qn/Np1b2BR/2bp1nPP/4B1q1 b - - 0 1 illegal: No proof kernel
2q3R1/n5n1/PNR1n1bK/pP2Q3/k2BNp1Q/1r1r1b1r/P1Rn4/3r1q1B b - - 0 1 illegal: Other
q1Nr2bb/1q2n1P1/6q1/N2R1BPp/3Q3r/nR1bQP2/qp2b2B/1B1k3K b - - 0 1 legal: proof: e4 a5 d4 g5 h4 c5 hxg5 cxd4 b4 axb4 Bc4 f5 Bf1 fxe4 a4 Kf7 g4 Ke6 c4 Ke5 a5 b5 c5 d5 a6 d3 f3 Kd4 Kf2 e5 Kg2 d2 g6 Ke3 a7 d4 g5 b3 c6 b2 c7 b4 Kh2 b3 Ra3 d3 Bg2 Nd7 Qc2 Nb6 Ra4 Ne7 Ra3 Nc4 Bh3 Ba6 c8B Bg7 Ra1 Na3 Nc3 b1Q Bcd7 b2 Na4 Qa2 Bhe6 h5 Nh3 Ke2 Rg1 e3 Nf2 e4 Qc6 d1B Ng4 d2 Qc5 Bd3 Nb6 Bb3 Bf5 d1B Nc8 Bg8 Kh1 Rb8 a8Q Rb4 Qa4 Bf6 Na7 Qa8 Nc8 Be5 Rg2+ Ke1 Qaa7 e2 Bf4 e3 Bh2 Kd2 Rg1 e1Q Qd4 e2 Ne3 Qg3 Bc6 e1Q Bce4 Be2 Nc4+ Kc2 Qab6 Qeb1 Rd1 Bf6 Qe6 Qc7 Na5 Qcb7 Qee5 Bc4 Qf4 Rd8 Qfe3 Bh8 g7 Bg8 Nb6 Qe6 Nc8 Qg6 Ra2 Nc4 Ra3 Qa2 Rb3 Na3 Rd2+ Kc1 Rc2+ Kd1 Rc5 Ra4 Rd5 Rc4 Qc5 Rd4 Qc3 Bc4 Bd3 Rh4 Bb1+ Bcd3 Qcd4
B3n3/k2b2Pr/2q2b1Q/B1P2bq1/Np2Npnr/2B2PbR/3Kn3/R3n1Q1 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd7 Bf1 Qd8 c4 Kd7 d4 Kc7 g4 Kb6 d5 h5 d6 f5 g5 e5 d7 a5 c5+ Ka7 g6 h3 g7 a4 Qd5 a3 Qd6 a2 Bg5 e3 Bh6 e2 Bf4 h2 Qc6 e4 Bh3 h4 Bc7 f4 Bg2 h3 Qh6 Na6 Kd2 e1N Qc6 e3+ Kd1 e2+ Kd2 Nf6 Be5 Ng4 Nc3 Rh7 Nd5 Be7 Rb1 a1Q Nf3 Qa4 Nb6 Nc7 Ng5 Bf6 Bc3 Ne8 Ra1 Qe7 d8B Bd7 Ne4 Rb8 Rf1 h1N Bc7 Ng3 Rh1 Qa6 Na4 h2 Ba5 Qc8 Qd5 Qc6 Qg5 Qe5 Qh6 Qg5 b6+ Ka8 b7+ Ka7 Rf1 h1B Bf3 Bg2 Rh1 Bh3 Bg2 Nc7 Bf3 Rbh8 Qg6 Ne8 b8Q+ Ka6 Qe5 Ka7 Qd4 Rh4 Qh6 Rh7 Kc1 Ne3 Rh2 Bhf5 Rh3 Ng4 Qd1 Ng2 Qg1 e1B Kd1 Ne2 Nd2 Qb6 Ba8 Qc6 f3 Bg3 Ne4 Ne1 Kd2
3Qnb1R/3p1rkn/rbP2R2/3r3N/qQ3rbN/3Pp1Rq/2P2B2/1b2KB2 b - - 0 1 illegal: No possible last move
2q3r1/n1Rp4/PR3BnB/QbP1b3/nb2Q1kp/1N5b/4BPq1/n1K1Nr2 b - - 0 1 illegal: No possible last move
6bN/rnPKn1q1/n5p1/2p1r2n/2rQR2b/3P4/BB2RRPN/q2k1r1Q b - - 0 1 illegal: No proof kernel
5Bn1/1NnP1BK1/p1Rb1p2/P1R5/4bb1n/1qrk2b1/5PR1/q1b1QQqN b - - 1 2 illegal: No possible last move
7Q/n1qbppR1/q1k3Rr/rq1P1r2/3B2Kn/Bq3PQ1/1q1N3P/4Nn1B b - - 0 1 illegal: No possible last move
4r1Q1/nPQp1R1q/p3b2b/3R2b1/P3P3/n1kNb1N1/Bb1nKBN1/5n1n b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 c5 fxg4 c6 bxc6 Na3 c5 Nb1 c4 h4 g5 Qd2 a6 Na3 g3 Nb1 g4 Qc2 Ra7 Qd1 Rb7 Bh6 Rb5 Bc1 Rg5 hxg5 Bh6 Qc2 Bg7 Qd1 Bf8 f4 Ke7 e4 Ke6 a4 h5 b4 c5 g6 d3 b5 c3 b6 c4 g7 d2+ Ke2 h4 f5+ Ke5 f6 Kd4 f7 c2 Nc3 g2 Rb1 g3 Rb3 h3 Rb5 h2 Rb2 Nc6 Rb1 Qe7 Ra1 Nb4 Nd5 c3 Ne3 Bb7 Rb1 Bd5 b7 Be6 Bb2 c1B Qe1 d1N Qf2 Nc2 Ng4+ Nde3 Ba3 Bb2 Bb4 Na3 Qf4 c2 Be1 c1B Bf2 Kc3 Ne5 Qh4 Ra1 Ne7 g8Q Nc8 Nd3 Bh6 f8N Na7 Ng6 Bg5 Qfb8 Qh7 Ngf4 Bd2 Rd1 Bh6 Nf3 g1B Nh5 g2 Ng3 Bdc1 Nh4 Bg5 Qf7 Re8 Qg8 Bh6 Nc5 Bg5 Rd5 Bd2 Nd3 Bdc1 Ke1 Bh6 Be2 Nf1 Bh5 Bcg5 Ke2 Bf6 Bf7 Bfg5 Bc5 B1e3 Qc7 Nd2 Rf1 h1N Rf3 Nf1 Rf6 Bh3 Be6 Bf5 Rf7 g1N+ Kd1 Bh3 Ng2 Nf3 Ke2 N3d2 Rd6 Qg7 Ba2 Qh7 Rd5 Be6 Qd8 Bef4 Bf2 Be3 Qc7+
Qq1Bb2b/2P1pNq1/1n2nq1q/qr1pPQR1/1P5q/1B1R3k/b2N4/KN6 b - - 0 1 illegal: No possible last move
4n1Rn/2n2PP1/pbNq1p2/B2q1Q2/1n3q1Q/N3k1r1/P5n1/RK1QnB1b b - - 0 1 illegal: No proof kernel
6r1/1qb1P2K/1B2Q1Qp/Pb2n1pR/3brNqP/N7/1b2bR1N/q1kB3q b - - 0 1 legal: proof: c4 d5 b4 dxc4 f4 e5 Nc3 a5 Nb1 axb4 g4 f5 Ba3 Nc6 Bc1 Nd4 Nh3 exf4 Ng1 f3 Na3 f4 Nb1 Nf5 gxf5 Bd6 Bg2 Bc5 Bf1 Bf8 Kf2 Kd7 e4 Kc6 h4 Kb5 d4 c5 d5 g5 f6 b3 a4+ Kb4 e5 b5 d6 b2 a5 c3 f7 c2 e6 Kb3 d7 b4 Be2 c4 Rh3 c3 Rg3 Bg7 f8N Bd4+ Be3 Nh6 Rg2 Ba6 Ng6 Ng4+ Ke1 f2+ Kf1 Ne5 Bd3 Rg8 Ke2 f1B+ Kf2 f3 Kg3 f2 Qc1 Qc8 d8Q Be2 Qb6 f1Q Bf2 Bb5 Nf3 Qh1 Na3 b1Q Qe3 Kb2 Nh2 c1B Bc2 b3 Bd1 c2 Nf4 Qb7 Qe4 Rae8 Qg6 Bd2 Ra2+ Kc1 Rb2 Qa1 Bg1 Bb4 Rf2 Bd6 Qc6 Bc7 e7 Rc8 Qce6 Qhe4 Ra2 b2 Kh3 b1Q Rb2 Rcf8 Rb4 Rc8 Rc4 Qb4 Rc6 Qh1 Rb6 Nf3 Kg4 Ne5+ Kf5 Rcd8 Qc4 Rd5 Rf6 Rc5 Qe6 Rc4 Qgf7 Qa4 Rh6 Qb4 Rh5 h6 Ng2 Ba7 Qg7 Re4 Qgg6 Bd4 Nf4 Qb3 Qef6 Qbf3 Qe6 Qg4+ Kf6 Rf8+ Kg7 Rg8+ Kh7 Kd2 Qg7 c1B Qgf6 Bcb2 Qg6 Kc1 Rg2 Bdc3 Bb6 Bd4 Rf2
2n1KbbR/1nNnQ3/bb1rP3/Bn1PkR2/3p1p2/Q3r3/2R2P2/1B1b2nN b - - 0 1 legal: proof: d4 g5 b4 a5 d5 axb4 d6 exd6 Nh3 d5 Ng1 d4 h4 gxh4 c4 d5 Rh3 d3 Rh2 d4 Rh1 Qd5 cxd5 Bh6 Rh3 Bg7 Rh1 Bf8 Kd2 Kd7 e4 Kd6 a4 b5 g4 h5 g5 c5 g6 f5 a5 f4 a6 c4 a7 h3 g7 c3+ Ke1 d2+ Ke2 h4 Kf3 b3 Ne2 b2 Rg1 c2 Ra6+ Ke5 Rg2 b4 Rc6 b3 Rh6 h2 Rb6 h1N Qe1 d1B Rbg6 h3 R6g4 h2 Bd2 c1B R2g3 Rh3 Rg6 Ne7 g8R Ba6 Kg4 Nd7 Kg5 Nc8 Bb4 Bd2 Rc3 Ng3 Rc2 h1N Rf6 Nf5 Kg6 Nfd6 Ba5 Re3 Nbc3 b1N Nb5 b2 Rh8 Ng3 Nc7 Nb7 Kf7 Nc3 Ke8 b1B Bg2 Rb8 a8Q Nb5 Bh3 Bdb4 Bf5 Bbc5 Rf7 Bb6 Qa7 Nf1 Ng3 Nd2 Nh1 Nf3 Qc3 Ng1 Qa3 Ba2 Rg7 Bc4 Rg5 Bf1 Rgh5 Bh3 Bg6+ Kf6 Re5 Be6 Rg5 Bg8 e5+ Kg7 e6 Kf6 Re2 Ra8 Bb1 Rb8 Rc2 Ra8 Rg7 Ke5 Rg5+ Ke4 Qe7 Ne5 Qa3 Nd8 Qd6 Ne7 Qa3 Rc8 Na8 Rc6 Qd7 Nc8 Bb4 Rd6 Rf5 Nb7 Qe7 Nd7 Be1 Ne5 Nc7 Nd7 Rf6 Ke5 Ba5 Nh3 Rf7 Ng1 Rf5+
3r1B1N/3n1nK1/r1B1k2R/Q2bp3/4qPp1/q1qrB1P1/qnN1R1PQ/5r2 b - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 a5 e5 axb4 Qf3 e6 Kd1 Bd6 Ke1 f6 Qd1 fxe5 Ke2 e4 Ke1 Bg3 hxg3 Qd3 Ne2 Qd7 Ng1 Qd8 Ke2 Ke7 Ke3 g5 f4 h5 d4 b5 a4 c5 a5 c3 d5 b3 a6 h4 a7 g4 Qd4 b4 Qe5 h3 Ra2 c4 Kd4 e3 Ke4 b2 Be2 c2 Qh5 e5 d6+ Ke6 d7 h2 Bd1 c3 Na3 b1R Rb2 e2 Rb3 e1N Qg5 Bb7+ Ke3 Qa5 d8B Nd7 Bb6 Bd5 Qh5 Nh6 Nf3 Nf7 Rb2 b3 Nh4 Rhd8 Bf3 Nd3 Ng6 Ra1 Ra2 b2 Bc5 b1Q Bf8 Nb2 Nh8 Rac8 Bd2 c1Q a8Q c2 Qh4 Qa4 Qa5 Rc6 Be4 Rd6 Qh5 Nd3 Rb2 Qa2 Bf3 Qcb1 Be4 c1Q Nc2 Q4a3 Qh4 Ba8 Bc6 Qc3 Ke4 Rd5 Rb6 Nb2 Be3 Rd3 Re1 h1R Re2 Rf1 Qh2 Qca3 Ra6 Qd2 Rb6 Qdc3 Bg7 Ke7 Kf5 Qbe1 Kg6 Ke6 Rd2 Qe2 Bf8 Qf3 Ra6 Qe4+ Kg7 Rd6 Bb5 Bd5 Re2 Rad1 Ba4 Rb6 Bc6 Rd3 Ra8 Ra6 Rb8 Re8 Rb6 Rd8 Bb5+ Kf5 Rg6 Qea4 Rh6 Qe4 Rh4 Ke6 Bc6 Qd6 Rh3 Qda3 Rh6+
3n4/1B4r1/1N1PR2r/4r1Qp/P2n1nRK/QrBq3P/2N2pk1/1nqb1Rq1 b - - 0 1 illegal: No possible last move
B1rn1q2/2pk1N2/2R2n2/b2Q4/pq1qB1b1/B3PQRN/P2bPK2/nq3b2 b - - 0 1 legal: proof: h4 e5 d4 exd4 c4 g5 c5 gxh4 c6 a5 Bg5 bxc6 Be7 c5 Bg5 c4 Bc1 Ra6 Rh3 Re6 Rh1 Re3 fxe3 Bh6 Qb3 Bg7 Qd1 Bf8 b4 d5 g4 f5 g5 h5 b5 a4 g6 f4 g7 d3 b6 h3 b7 d4 Nf3 c3 Qc2 h4 Qd2 h2 Bh3 c2 Rg1 h1N Kf1 Bb4 Ba3 c1B Kg2 Bg4 Qc2 d2 Qb3 d1Q Qd5 d3 Qa5 d2 Nd4 f3+ Kh2 f2 Kg2 f1B+ Kh2 Ng3 Ne6 Qb3 Qd5 d1Q Nd2 Ne4 Nf4 Nc6 b8Q Nc5 Rg3 Ba5 Kg1 Qb4 Bg2 h3 Qb7 h2+ Kf2 h1Q Nf3 Nb3 Ng5 Bd2 Be4 Nf6 Rc1 Na1 g8B Qc8 Rc2 Nd8 Rc6 Qh4 Nf7 Qdb1 Nh3 Ke7 Qg5 Kd7 Qf4 Qd4 Qf3 Qb8 Bgh7 Qh6 Qb3 Qbb4 Bd5 Qhf8 Bhe4 Qbd3 Re6 Qb1 Ba8 Rh5 Qc4 Rb5 Qd3 Rb8 Rc6 Rc8 Qb5 Qdd6 Qg5 Qdd4 Qd5+
8/1Rp3Qk/bP1nq2p/2QBqq1r/bRP5/nqn5/PBN1b1KN/b4B2 b - - 0 1 illegal: No proof kernel
QK3nqb/3N1P1k/Rn1Bp1q1/2pB2n1/2N3R1/1bN1qb1P/2PQ4/1q1b1r2 b - - 0 1 legal: proof: e4 c5 g4 h5 d4 hxg4 b4 a5 e5 axb4 d5 b5 e6 Ra6 Be3 Rc6 dxc6 fxe6 Bd2 e5 Bc1 e4 Kd2 Kf7 Ke3 Kg6 Kf4 d5 Ke5 b3 a4 d4 f4 d3 h3 b2 a5 g3 f5+ Kh7 f6 g5 a6 e3 c7 e6 a7 g2 a8Q d2 Ra6 e2 Qd5 e1Q+ Qe2 d1B Rd6 g4 Qd2 g3 Qee3 b4 Qf2 b3 Be2 Bg7 Bg4 Ne7 Rd4 Rf8 Nc3 b1B Qd2 b2 Be2 Bb7 c8N Nd7+ Kd6 Nd5 Qf3 Ba2 Nb6 b1Q Rg4 Bh8 Nc4 N5b6 Qfd5 Qa8 Kc7 Bb3 Nf3 g1N Nfe5 g2 Bf3 Qe3 Qc6 Rf7 Bd5 Nf8+ Nd7 Nf3 Qa4 Qe8 Qa8 g1Q Bb2 Ng5 Bc1 Rg7 f7 Rg6 Bb2 Rf6 Ba1 Qg2 Re1 Rf1 Bb2 Qe7 Kb8 Qf6 Ba1 Bf3 Rd1 Qg6 Rc1 Bd1 Bb2 Qa2 Ra1 Qb1 Ra6 Bc6 Nb5 Qg8 Be5 Qge4 Nc3 Qeg6 Bd6 Bb7 Bg2 Bbf3 Bh1 Bfe2 Be4 Bf3 Bd5
1nb1Nr2/2QQ3p/2rq3R/1Npq1rB1/2bq2r1/1R3P1P/3P4/R1bBkb1K b - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 e5 b5 exf4 Qc2 f3 Kd1 f2 Qb3 a6 Kc2 axb5 Kb2 b4 Qd1 Ra7 Kc2 Ra8 e3 f5 Qe2 f4 Ba3 f3 Bb2 Nc6 Qd1 Ne5 Bd3 f1B Ba3 f2 Bc1 Nf3 gxf3 Qe7 Bb2 Qd6 Bc1 Qd8 a4 Kd7 h3 Ke6 a5 Ke5 a6 b5 a7 g5 e4 Kd4 e5 b3+ Kb2 b4 e6 g4 e7 g3 e8Q g2 Qe6 Ne7 Qc6 Rg8 Qh6 Qd5 Qd6 Rg4 Qh2 Nc6 Be2 Nb8 Na3 c3+ Kb1 b2 Kc2 b1R Nc4 c6 Qc7 Bg7 Qe1 b3+ Kd1 b2 Nd6 Bf8 Ne8 Ba3 Bb5 Bc4 Ba4 Kd3 Ne2 f1B Nd4 g1Q Qe6 c2+ Ke1 Qd6 Nb5 Qgd4 Qed7 Q4d5 Ra2 Ra1 Kf2 b1Q Bb2 c1R Bf6 Qb2 Bg5 Qg7 Bd1 Qgd4+ Be3 Bb2 Ra6 Ra5 Rg1 Ba3 Rb6 Rc2 Rg3 Bc1 Kg1 Rc3 Kh1 Rc2 Bg5 Rc3 Bb3 Ke2 Bd1+ Ke1 Rg1 Ra6 Rg2 c5 Rb7 Rc6 Rb6 Rf4 Rg4 Rf7 Rh4 Rf5 Rh5 Re3 Rh6 Re4 Rb7 Na6 Rb6 Rb8 a8R Rg4 Ra7 Ra8 Rbb7 Nb8 Ra1 Ra3 Rb6 Re3 Nf6 Re8 Rb7 Rh8 Ne8 Rhf8 Na3 Ba6 Rb3 Bac4 Nb5
4NB2/1Qbnn1r1/3bQ2n/2NR1P1p/2P3p1/K1n2n1Q/1r2br1P/R1r2B1k b - - 0 1 legal: proof: d4 f5 b4 a5 e4 axb4 g4 fxe4 f4 c5 f5 Qb6 g5 Qf6 gxf6 cxd4 Kd2 Kf7 a4 g5 c3 b5 Kc2 e5 Kb3 d5 a5 h5 a6 e3 a7 e2 Bh3 e1B Ra6 e4 Na3 d3 Bg4 d4 Nb1 e3 Ra2 d2 Bf3 e2 Bb7 d3 Ra4 g4 Ra1 Nd7 Be4 Rh7 Nf3 Bd6 Ng1 Rg7 Kb2 b3 Na3 b4 Nc2 Ba6 Na3 Beg3 Rb1 e1N Bf3 Nh6 Bc6 Nf3 Qf1 d1R Qh3 d2 Bb7 Be2 c4 Rb8 a8Q Rf1 Qa6 d1R Nb5 Rf2 Ra1 Bc7 Bf4 Rc1 Bd6 Bf4 Bf8 Bfd6 Be4 Rb6 Bd3 Rb7 Qa2 Rb6 Qb1 Rb7 Ra5 Rb8 Ka1 b2+ Ka2 Rb7 Qa1 b1N Qe5 b3+ Kb2 Nfd2 Nf3 Nc3 Nfd4 Nf3 Ne6 Nd5 Nc5 Ne7 Ka3 b2 Qe4 Rb6 Qb7 b1N+ Kb4 Nbd2 Ka3 Ne4 Rf1 Nc3 Rd1 Bd8 Nc7 Rb2 Ne8 B8c7 Re1 Kg8 f7+ Kh7 Bb1 Nhg8 Bd3 Kh6 Rd1 Kg5 Rd2 Kf4 Ra8 Bd1 Bf1 Be2 Rd1 Nh6 Rd5 Rd2 Kb4 Ke3 Ra1 Rb2+ Ka3 Rg2 Qa8 Kf2 Qb7 Kg1 Qc8 Bg3 Qb7 Rg5 Bg7 Bgd6 f8Q Rf2 Qf7 Kh1 Bf8 Rg7 Qe6
1n3nrB/N2B1k2/3P1bQ1/4p1PK/Qb1R4/1rN1Ppb1/rr1n1n2/1bN4R b - - 0 1 legal: proof: c4 g5 f4 gxf4 h4 d5 g4 dxc4 b4 a5 g5 Qd5 g6 Qg5 hxg5 axb4 Kf2 f5 Kf3 c5 a4 b5 d4 h5 g7 h4 a5 b3 a6 b2 d5 h3 a7 c3 Ra2 b4 Be3 c4 Na3 b1R Bg2 b3 Bf1 h2 Rb2 c2 Bc5 c1B Be3 c3 Bd4 c2 Nb5 Nf6 g8N Kf7 Bc3 Nh7 Nf6 Rg8 Ra2 b2 Kf2 f3 Kg3 f2 Kh4 f4 Qd2 f3 Bh3 f1N Ra6 Bf5 Qe1 Bf4 e3 c1B Rd6 Bg3+ Kh5 Nd2 Ne4 e6 Rd8 Bb4 Bh8 Nf8 Ne2 e5 Rd7+ Be7 Rd8 Bf6 N4c3 Be4 Bd7 Bf5 Rf1 h1N Qd1 Nf2 Qc2 Nb3 Rd1 Bd2 Nc1 Bd3 Rh1 Be4 Nd1 Bb4 Ndc3 Nd2 Qd3 Ra1 Qc2 b1R Qa4 Ra3 Qc2 Na6 Qa4 Rb8 a8Q Rbb3 Na7 Bb1 Q8c6 Rb5 Qb6 Nb8 Qd6 Rb2 Qda6 Ra5 Qd3 Rab3 Qg6+ Ke7 Rc8 Ra6 Rc4 Ra5 Rd4 Ra6 Qf5 Kf7 d6 Ra5 Qc6 Ra1 Qa4 Raa2 Qg6+
2Rq4/2b3QK/q2Q4/5N2/p1R1B1qp/r1k2rrP/PnpbPb2/R1Bn1N2 b - - 0 1 legal: proof: d4 a5 c4 b5 b4 bxc4 g4 f5 d5 fxg4 b5 Ba6 d6 exd6 bxa6 d5 Bh3 d4 Bg2 Be7 Bf1 Bf8 Kd2 Kf7 f4 Kf6 h3 c5 f5 Ke5 a7 h5 f6 g5 f7 d5 Rh2 h4 Bg2 c3+ Kd3 g3 Qd2 c4+ Kc2 g4 Qe1 d3+ Kd1 Kd4 Nd2 Nh6 Rh1 Rg8 Qf1 c2+ Ke1 Bd6 f8Q Nf5 Ne4 Na6 Kd2 Ne3 Q8f2 Nc5 Ba3 c1B+ Ke1 c3 Bb4 c2 Qf8 Na4 Qh6 Bc7 Nf6 Nb2 Bf3 g2 Kf2 d2 Ne8 d1R Ng7 Rd3 Be4 g3+ Kf3 Kc4 Qh8 d4 Nf5 Rc3 Qh6 d3 Qd6 d2 Kf4 d1Q Nf3 g1B Qg2 Qd3 Nh2 Bf2 Rd1 Rg7 Rd2 Ned1 Nf1 Rg6 Qg1 g2 Ke5 Rg7 Ke6 Rg4 Kf7 Rf4 Kg6 Rb3 Qh1 g1Q+ Qg2 Rc3 Qg5 Qg4 Kh7 Rb3 Qg7 Rc3 Qde5 Q3d6 Rd5 Rg3 Bd2 Rff3 Qe6 Qa3 Qd6 Qd3 Bg5 Bf4 Rd4+ Kc3 Bf6 Bh6 Bg5 Qc4 Bc1 Bd2 Qd5 a4 Qdd7 Qa6 Qd6 Rb8 a8R Rb3 Rc8 Ra3 Rc4+
1n2rq2/6r1/5Rbp/2k5/3bpP2/NN1Pbn2/1QPp2BQ/KR1rBnqR b - - 0 1 illegal: No proof kernel
r4Nb1/1q1BK2R/1n4Pp/3bRk2/2r4p/P1b1p1PN/n2B2Q1/Q1qBq2n b - - 0 1 illegal: No proof kernel
3q3B/rB2r1bq/b1p1Nq2/pb2rPQ1/BP2QnnN/K3p3/6P1/1kR2R2 b - - 0 1 illegal: No possible last move, all moves rejected
2B1rq2/4n1P1/q2p1Q1k/2p1b1Rb/3r1r2/PQ1PK1p1/N4n1N/n1B2NRq b - - 0 1 illegal: No proof kernel
n3QB1r/4rp2/N1P1n1pk/2r4N/BqB3p1/1QP1qP2/1b1R3n/b1bKR3 b - - 0 1 illegal: No proof kernel
4bNBq/R2B1pq1/qP2pb2/2r1QkrR/p7/nPR1P3/3NQ3/3nbKn1 b - - 0 1 legal: proof: f4 b5 g4 g5 a4 c5 axb5 h6 d4 cxd4 Be3 Qb6 Bf2 Qd8 Bh4 gxf4 g5 Qc7 g6 Qd8 Bg5 hxg5 c4 d5 h4 Kd7 g7 Ke6 h5 a5 b6 a4 h6 d3 e3 f3 b3 d4 h7 d2+ Kf2 g4 c5 d3 c6 Na6 c7 Nh6 g8Q Kf5 Bg2 e6 Nc3 g3+ Kf1 f2 Nce2 Nb4 Qc1 d1N Qd2 Bd7 c8B Ng4 Ba6 Ne5 Qc2 Be8 Qc3 d2 Nf4 Be7 Ra2 Bf6 Bf3 Rc8 Rc2 Rc5 Bc6 Nf3 Bd7 Qa8 Qg7 Rg8 h8R Qc8 Rc1 Nc2 Qb2 Na3 Ng6 Qd8 Nf8 g2+ Ke2 Qa8 Rc3 Qc8 Qg3 Rg5 R1h5 Qa8 Nh3 g1B Kf1 Bh2 Ng1 Qb8 Qd6 Bg3 Qd5+ Qe5 Qc4 Qd4 Qe2 Qh4 Nh3 Ng1 Bd3+ Ke5 Bh7 Qd4 Bg8 Kf5 Nf4 Qe5 Nd3 Qb8 Ne1 Qc8 Kg2 f1Q+ Kh1 Qa6 Nf3 Be1 Kh2 Qf2+ Kh1 Qg3 Qa1 Qb8 Qb2 Bg3 Kg2 Be1+ Kf1 Qg3 Rh2 Qh4 Rh3 Qh6 Rh5 Qg7 Qa1 Nf2 Qb2 d1Q Nd2 Qa1 Rc1 Qh6 Ng6 Bg7 Bh7 Nd1 Rf8 Be5 Bg8 Qh8 Qd4 Bg7 Qd6 Qf6 Rc3 Qd4 Bb5 Bd7 Ra8 Bc6 Ra7 Be8 Nf8 Qf6 Qg3 Qfh6 Bd7 Bf6 Qb8 Q6g7 Qe5+
1Q3NBK/1b1Qp2n/RQqp2r1/bnPn1RB1/r3P3/prP1q1b1/8/1N2k3 b - - 0 1 legal: proof: g4 c5 h4 b5 a4 bxa4 d4 f6 g5 fxg5 dxc5 gxh4 Bh6 h3 Be3 Bb7 Bc1 Bc8 Kd2 Kf7 Ke3 Ke6 Kf4 a5 Kg5 Ke5 f4+ Ke4 b4 h5 Kg6 a3 f5 d6 b5 a2 f6 h4 e3 a4 b6 a3 b7 h2 f7 h3 Qd2 Nd7 b8Q Nb6 Qd1 Bb7 Bb2 Nf6 Bd4 Nh7 Ba6 Nd5 Bf6 Rg8 Qh5 Qb6 Bb5 Ra4 Qd1 Qa7 Ne2 Kf3 Bc3 Kf2 Re1 h1R Ng1 h2 Ne2 Rf1 Be8 h1Q Bf6 Rg1+ Bg5 Rg3 Nf4 Qb6 Qc7 Qc6 e4 Rb3 Ng2 Qh3 Qg4 Qf3 Nf4 Qe3 Re2+ Kf1 Rf2+ Ke1 Kf5 g6+ Ke6 Bg7 f8Q Bb2 Kf7 Bc3 Qb6 Ba5 c3 Rg7+ Ke6 Rg8 Bf7 Rg7 Qb8 Rg8 Bf6 g5 Ng6 Rg7 Qh3 g4 Nf8 g3 Bg8 g2 Bg5 g1B Rf5 Rg6+ Kf7 Bh2 Qg4 Bg3 Qh3 Rf6+ Kg7 Re6 Kh8 Rg6 Nd2+ Ke2 Rd1 a1N Nb1 Nc2 Rd4 Ke1 Rb4 Nd4 Rb5 Bb4 Ra5 Nb5 Ra6 Ba5 Rf2 Bh2 Qd7 Bg3 Rf5
q1r3b1/3pb1KR/n3PBPP/Qn1R1QN1/pR2qpN1/6nB/1r6/2b1kr2 b - - 0 1 illegal: No proof kernel
kB6/N1P2b1R/n1Rn3Q/p1qp2bq/1q5P/Q5rP/4p2K/N1QBrr1n b - - 0 1 legal: proof: e4 f5 d4 fxe4 a4 c5 g3 cxd4 a5 h5 a6 h4 gxh4 bxa6 Bd3 a5 Bf1 a4 f4 e5 Kf2 a5 Kg2 d5 b4 Kd7 c4 Kc7 h3 Kb7 f5 g5 b5 d3 f6 e3 f7 e4 c5 d2 b6 g4 Na3 g3 Be2 Ne7 Bc4 e2 Qb3 e1Q Qd1 e3 Be2 Bh6 f8Q Na6 Qf2 Rf8 Nc2 a3 Qf3 a2 Rb1 Bg5 Na1 Qe8 c6+ Kb8 b7 Qh5 Qf6 Nf5 Qh6 Be6 Nf3 Bf7 Nd4 Nd6 Nb5 Ra7 Qa4 d1N Qa3 Nf2 Bd1 e2 Bf4 Qb4 Rg1 Rg8 Rc1 Nh1 Rc4 Ra8 Na7 Rg7 Rf1 Rg6 Kg1 g2 Kh2 g1R Rf3 Re1 Re3 Rf6 Re7 Rf5 Bg3 Rff1 Bf4 Be8 Rh7 Bf7 Nc2 a1Q Rc3 Qc1 Na1 Kc7 Rc4 Kb6 Rc2 Rg8 b8Q+ Nb7 Qe5 Nd6 Qeb2 Kc7 Qb1 Kb8 Rc4 Qe3 Qbc1 Qec5 Be5 Ka8 Rc2 Nb5 Bb8 Nd6 c7 Be7 Qcb2 Rg3 Qbc1 Bg5 Rc3 Qcb5 Rc6 Qb6 Qcc3 Q6c5 Qcc1
nK3bBR/2P1B1pq/r1P5/Q1Q1b1p1/3q2Q1/1pn3Rb/1n2qP2/k1NrN3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 f5 dxc5 fxe4 g5 h6 Ke2 hxg5 Kd2 Ra3 Ke1 Ra8 Kd2 Kf7 Ke3 Ke6 Kd4 b5 a4 d5 h4 e3 c4 b3 c6 b2 Kc5 Ke5 h5 b4 h6 b3 c7 e2 Kb6 e1B a5 d4 c5 d3 c6 Kd4 h7 e5 a6 e4 a7 d2 Rh2 e3 Nh3 e2 Nc3 b1Q Nf4 Ne7 Na4 Bh3 Kb7 Nd7 Nc3 Nd5 Ba3 N7b6 Na2 Nc3 Nc1 Rg8 h8Q Qh7 Qc2 d1N Nfd3 Nb2 Be7 Bd2 Qd1 e1Q Qg4+ Bf4 Rg2 Qd1 Ne1 Qe2 Rg3 Kc4 Ra3 Qd4 Ra6 Rd8 a8Q Be5 Ra3 Rd5 Kb8 Ra5 Qa7 Na8 Qb6 Ra6 Qa5 Qf5 Qh6 Rh8 Qf6 Rh5 Bg2 Qh7 Qff5 Rh6 Qc2 Rd6 Be4 Rd7 Bg6 Rd5 Bf7 Nd1 Ra1 Qf5 Qf3 Qdg4 Qce4+ Bd4 Qef4 Bf1 Bd6 Ne4 Ncd3 Be5 Ng2 Qg6 Q4e3 Qd7 Qab6 Kc3 Qg4 Kc2 Qed4 Nb2 Be7 Nc3 Qa5 Qh5 Re1 Qg6 Nc1 Kb1 Qa7 Rd1 Q7c5 Qd4 Bg8 Qf5 Nf4 Bg2 Rh1 Bf1 Rh5 Bh3 Rh8 Qfc2 Ng2 Qh7 Qab5 Ka1 Ne1 Qg6 Qbb6 Qh7 Qba5+
2KNBN2/Q1P1p1R1/2n2k1q/1qP2Pr1/p1r2n1Q/2b3R1/p4q1b/1bRr2B1 b - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 g5 h4 gxh4 a4 bxa4 Bd3 f5 Bf1 fxe4 Kd2 Kf7 Kc3 d5 Kd4 a5 Ke5 h5 c4 e3 b4 e2 f4 e1B g4 a3 g5 a4 f5 a2 c6 h3 c5 d4 b5 d3 c7 h4 b6 h2 b7 h3 Nd2 Rh4 Ngf3 Qd7 Ne4 d2 Rg1 h1Q Rg3 h2 Nd4 Qg1 Ne6 h1Q Nf6 Rc4 Nh7 Qb5 Qg4 d1R Qh4 Qf2 Be3 Nf6 Rc1 Bg7 Nhf8 Bc3+ Bd4 Bh8 Nd8+ Kg7 g6 Nd5 Bg2 Nf4 Bc6 Be6 Be8 Bd5 Bd7 Be4 Be8 Na6 b8Q Bb1 Qa7 Nb4 Qg4 Qh6 Qh4 Kg8+ g7 Rb8 Qh2 Rb6 Qh4 Rg6 Qb7 Rg5 Qa7 Ng6+ Ke6 Nc6 Kd7 Nf4 Ng6 Kh7 g8R Be5 Kc8 Bd6 Rf8 Be5 Rf7+ Kg8 Rh7 Bd6 Nf8 Be5 Rh8+ Kg7 Rg8+ Kf6 Be3 Ne2 Rg7 Bf4 Rf3 Bh2 Rh3 Nf4 Rg3 Qd2 Bg1 Qd4 Bd7 Qf2 Be8
2R1rQ1q/BKpb2pP/2QBp1n1/1P6/5R2/1n1Bb2r/P1q3r1/kN2nNb1 b - - 0 1 illegal: No proof kernel
k2b1q1N/2p1P3/Q1r1q3/qPQ1rn1p/B1PpB3/1nr1N2N/Rn4K1/R2b4 b - - 0 1 legal: proof: e4 b5 d4 g5 a4 e5 axb5 f6 h4 gxh4 Bf4 exd4 e5 Nh6 e6 Ng8 Be5 fxe5 b4 h5 f4 a5 Kf2 d5 c4 e4 g4 d3 g5 h3 g6 h2 g7 d2 b6 d4 b7 a4 b5 a3 f5 a2 f6 e3+ Kg3 e2 Qa4 e1R Nf3 d1N Qc2 Ra3 Qf2 Na6 b8Q Nc5 Nc3 Be7 Bd3 Nb3 Be4 Nh6 g8B Nb2 Ng1 Nf5+ Kg2 Rh6 Nd1 Bd7 Bc2 Re5 Qb6 Qc8 f7+ Kd8 f8N Qa6 Be4 Kc8 Qc5 Kb8 Ng6 Bd8 e7 Qe6 Nh3 Bc6 Ne3 Ka8 Nh8 Bb7 Rac1 a1Q Rc2 Qe1 Qf3 Qa5 Bh7 Bc6 Ra1 h1Q+ Kf2 Qhe1+ Kg2 Qf7 Qg4 Qf8 Qg6 Bb7 Qgb6 Rc6 Ra2 Bc8 Rc1 Be6 Rca1 Qe2+ Kg1 Bd5 Bc2 Bf3 Bg6 Bg4 Bh7 Qee1+ Kg2 Bd1 Bg6 Qh4 Bh7 Qhf6 Be4 Qe6 Bc2 Nd2 Ba4 Rc3 Bg6 Nb3 Bh7 Ng7 Be4 Nf5 Qa6+
2QBB3/bp1qrr1B/P3b2k/1n2K1bp/1n1Pp3/1N1R4/1P1QRNr1/q6q b - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 g5 c5 gxh4 Qa4 a6 Qxa6 d6 Qa5 dxc5 Qa7 c4 Ke2 Kf7 Ke3 Kg7 Kf4 e5+ Ke3 c5 g4 h5 a4 c3 d4 c2 f4 c4 g5 c3 f5 h3 a5 h2 a6 Nc6 g6 Bc5 f6+ Kh6 f7 Nb4 g7 Nf6 f8Q Rh7 Qb8 Ne8 Be2 Ba7 Ra3 Qd7 Bb5 Nd6 g8B+ Rg7 Bc6 Nb5 Qf2 Rg2 Qc7 Rb8 Bh7 Ra8 Bd2 c1B Nh3 c2 Re1 h1Q Rd3 Rb8 Qe2 Ra8 Nf2 Rb8 Qd1 Ra8 Ke2+ e3 Kf3 e4+ Kf4 e2 Be3 Bd2 Qd8 c1R Qc7 Rc2 Qb8 Bc1 Nd2 Rc5 Qc2 Re5 Nb3 Re6 Qd2 Re7 Rd1 e1Q Qc7 Qef1 Re1 Qfg1 Re2 Qd1 Na1 Qa4 Nb3 Qa1 Qb8 Qe8 Qc7 Be6 Qc8 Qd8 Be8 Qd7 Qcc2 Rc8 Qcc3 Rc7 Ke5+ Kg7 Bg5 Rf7 Qd1 Bd2 Bd8 Bg5 Qdd2 Kh6 Bf6 Qd8 Qc6 Rce7 Qc8 Qd7 Qd8 Rg7 Qc8 Ref7 Bd8 Re7 Qdc1 Rgf7 Qd2
Nn2n1Bb/ppP1p2K/1rq2N2/2R5/7k/1rP1QPq1/b2r1bqN/B1QR4 b - - 0 1 illegal: No proof kernel
2nb3B/1b2k1nB/3b4/7p/3nqN1p/NnrQ1Pr1/KpPn2PN/2QR3R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 c5 d4 cxd4 Ba6 g5 Bf1 gxh4 Kd2 e5 a4 d5 a5 b5 f3 h5 f6 b3 a6 d3 Kc3 b4+ Kb2 e4 a7 d4 f7+ Ke7 Nc3 d2 Nce2 d3 Nf4 e3 Ra6 e2 Nfh3 e1B Ra4 Qd5 Be2 Bb7 Bf1 Nc6 Ng5 Nd4 Ne2 Qe4 Ra2 Rc8 a8N Rc3 Ka1 b2+ Kb1 Nb3 Ng3 Bf2 Nc7 Bb6 Qe2 d1N Qf2 d2 Nh3 Ne3 Nf4 d1N Qe2 Nf5 Nb5 Nfd4 Ra1 Ne3 Na3 Bd8 Qd3 Nef5 Ka2 b1N Bb2 N1d2 Rd1 Ng7 Be2 Rh6 Nf1 Rg6 Nh2 Rg3 Ba1 Kd6 Bf1 Ne7 Be2 Nc8 Bf1 Bfe7 f8Q Kd7 Qf5+ Kd6 Qe3 Bf8 Bd3 Ke7 Qh7 Kf7 Bb2 Bd6 Qg6+ Ke7 Qf5 Nb1 Qc1 N1d2 Qb5 Qc6 Bg6 Qe4 Bh7 Rc6 Ng4 Ndf5 Ba1 Nc5 Qb1 b3+ Kb2 Ne8 Qd3 Rc7 Kc1 Rc6 Be5 Nd4 Bh8 Ng7 Kb2 Rc7 Ka1 b2+ Ka2 Ncb3 Qc1 Rc3 Nh2
1R2Q1r1/2n5/5b1b/Pr1pR1NP/1PBN1rpK/bb6/1k1b1p2/B2n1QqN b - - 0 1 illegal: No possible last move
1K3Q2/NQ3P2/1b2bn2/rp2nRR1/1R1Bk1P1/P1p2n1b/2r2pn1/n2N2qB b - - 0 1 illegal: No proof kernel
QnrQr3/1KR1BP2/2N1nP2/5R1P/1bq1B3/2b1pNp1/r3pNk1/1b1b2b1 b - - 0 1 illegal: No proof kernel
2bBr3/4p1PR/rBRnp3/1rP1P1n1/bNkN1p1q/3Q1B1n/r5r1/2KQ4 b - - 0 1 illegal: No proof kernel
1b1Qnb2/n1RPBK1P/1r5r/1PBpb1QR/6k1/2N3b1/q1B2p1p/1b3rN1 b - - 0 1 illegal: No proof kernel
N1Rrb3/P1qr1p1r/B4np1/2B3pP/2bQ1R2/3rb1Q1/1n3NrP/1K1B3k b - - 0 1 illegal: No proof kernel
qn1r1b1B/2N1Rbn1/BN2pnP1/1PQ1bk2/1QpbR3/r1p5/3Pr1R1/3K4 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 f4 Kf7 b4 Kg6 g4 h5 g5 c5 b6 a5 b5 e3 b7 h3 Ke2 h2 Nf3 h4 Ne1 c3 Rg1 h1R Nd3 h3 Qb3 h2 Nb4 Kf5 g6 Be6 Kd1 Bf7 Nd5 e6 Bb2 Nf6 Nc7 Ra7 Bg2 e2+ Kc1 e1B Na3 Qe8 Kd1 Bf2 Nc4 Bd4 Qb4 Qc8 Re1 Rg1 Rb1 h1N Nb6 Ng3 Bc6 Rg2 Re4 Ngh5 Ra1 Nbd7 b8R Ng7 Bb7 Re2 Ba6 Ra8 Rb7 Nb8 Ne8 Rh3 Re7 Be5 Rc1 Rd3 Nc7 Rd8 Kc2 Ra7 Rg1 Qb7 Ba1 Qa8 Rg2 Ng4 Rf2 Bg8 Rd4 Nh5 Ncd5 Bh8 Qb2 Bh6 Nc7 Kf6 f5 a4 Rb4 a3 Bb7 a2 Kd1 Bf4 Re4 c4 Rg2 Bg3 Qb1 Bf2 Bb2 a1B Rd7 Ra2 Ba3 Bb2 Bc5 Ba3 Ba6 Bb4 Bd6 Bd4 Be5+ Kg5 Qb2 Ra3 Qb3 Bd6 Qb4 Bf6 Rf7 Bfe7 Bh8 Ng7 Rf8 Bh2 Re8 Bf4 Qd6 Bg3 f6 Bge5 f7 Kf5 f8Q+ Nf6 Qb4 Bec5 Qd6 Bf7 Qc6 Bcd6 Qcc5 Bf8 Re7
n2b3N/1r1BQQk1/3p1p2/3KBP2/pP1N1Rb1/N5q1/2r1R1Pr/n3b1nb b - - 0 1 illegal: No possible last move, all moves rejected
qr6/Pbn5/n1B1Q1n1/P4Kp1/1kR1Q1RB/brN2P1p/3pb3/r1QN3n b - - 0 1 illegal: No possible last move, all moves rejected
3qr2q/bB4k1/3r2N1/1R1p1Rb1/1pn1PB2/bKP2b2/1pnP1Rb1/Q3NQ2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 b5 e5 Nc3 exf4 Nd5 c6 Nc7+ Ke7 Bh3 cxb5 Bg2 a4 Bf1 b4 Bb2 a3 Bxa3 Nf6 Bc1 Ng8 h4 b3 e4 Kf6 a4 Ra6 h5 d5 c3 b5 h6 g5 a5 g3 h7 g2 Rh4 g4 Rh3 g3 Ba3 b2 Ra2 f3 Rh1 f2+ Ke2 Bg4+ Kd3 Nh6 Kc2 Kg7 Nh3 g1B Nf4 f5 Kb3 g2 Bb4 Nf7 Bc5 Ne5 Ba7 Nbc6 Ng6 f4 Rh2 f3 Be3 Nb4 Bf4 Re6 Bd3 f1Q a6 Rg8 h8R f2 a7 Bd6 a8Q Rge8 R8h5 Bf3 Na6 Nc2 Nc5 Be7 Rf5 Bg5 Rh6 Rd6 Qb1 Qe1 Ra6 f1B Rb6 Qh4 Qaa1 Be3 Be2 g1B Nd3 Bc5 Qd1 Qh1 Rh2 Ba3 Rg2 Bd4 Rf2 B1g2 Qf1 b4 Ne1 Qh8 Ba6 Nc4 Rb5 Ba7 Bb7
QB1r2bB/6R1/2Bnp1n1/b2p1qP1/K1pqNn2/1P2nk2/Q2nP1R1/1rN5 b - - 0 1 illegal: Other
1qk2bBq/1n2n1B1/2Pqq1R1/2PN1pN1/p1rP1pr1/2Q2bq1/1R1R4/1K1Q4 b - - 0 1 illegal: No proof kernel
3Q1r2/Rq2B3/qpbNk3/5bP1/p1b1Qb1R/rb1PNB2/p3PR2/n2n1K2 b - - 0 1 illegal: No proof kernel
b4q2/5kpQ/3RqBBP/3P2nq/6qp/2QN3r/1R2r1Pp/q1NK1nRb b - - 0 1 illegal: No proof kernel
1qn2BQK/1q1Bp1nn/1p3N2/2b3R1/5p1P/4P2b/1r1N2P1/RnkNQr1n b - - 0 1 legal: proof: d4 a5 f4 c5 b4 cxd4 f5 axb4 Qd3 g6 Qh3 gxf5 Qxh7 f4 Kf2 f5 Kf3 d5 h4 Kd7 a4 Kc6 c4 Kc5 a5 b3 a6 Kb4 e3 b6 a7 d3 c5 d2 c6 d1N c7 b2 Qh6 Kb3 Qe6 Kc2 Nc3 b1N Ne4 d4 Nf6 d3 Ra3 d2 Qf7 Nf2 Nd5 d1Q+ Be2 Nc6 Nf6 Q1d7 Bb5 Bg7 Ne2 Rh5 Rf1 Nh1 Bb2 Rb8 a8Q Na7 Nc3 Qf8 Ng4 Nf6 Ra5 Nh7 Nd1 Bd4 Qg8 Bc5 Bg7 Kc1 Nf6 Rg5 Qe4 Qc6 Rg1 Qb7 Bd7 Qd8 Bf8 Qe8 Ke2 f3+ Kd3 f2 Qb4 f1N Qe1 Nfg3 Kc4 Nh5 Rb5 Qa6 Kd5 Qb7+ Ke6 f4 Ra5 Ra8 Rb5 Qd8 Kf7 Rg3 Ra5 Rf3 Kg6 Rf1 Kh6 N5g3 Kg7 Nf5+ Kh8 Ng7 Rb5 Ba3 Rg5 Bc5 Bb5 Be6 c8N Bh3 Nd6 Qdb8 Bd7 Nc8 Nc4 Ra2 Nd2 Rb2 Qa2 Na3 Qf2 Kc2 Qg8 Re1 Nc3 Rd1 Re1 Rc1 Re2 Rg1 Re1 Rf1 Ra1 Nb1 Nd1 Kc1 Qe1
KBb3B1/4pp2/1N1bPQ2/k1bR1rP1/r2nn1NP/6pq/1Nq2Q2/1Rb3b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 c4 gxf4 axb5 d5 g5 dxc4 Qb3 Qd5 Qh3 Qd8 Qg4 hxg4 Kf2 Kd7 h4 c5 b4 Kc7 d4 Kb6 e4 a5 d5 f3 Ke3 f2 e5 c3 Ke4 c4 e6 a4 d6 c2 Kd5 a3 d7 a2 Nh3 g3 Bd3 f1Q Bf4 c1B Nd2 c3 Nf2 c2 Nc4+ Ka7 b6+ Ka6 b7 Qg1 Bh7 Bg7 Nb2 Nc6 b8Q Nd4 b5+ Ka5 b6 Qh2 b7 Be5 Ng4 Be3 Rab1 a1B Rhd1 Qc7 d8Q c1B Rd2 Ra6 Qa7 Bg1 b8N Bd6 Nd7 Qh3 Nb6 Qc2 Qe8 Bc5 Bb8 Bd6 Qf8 Bc5 Qg7 Nf6+ Ke5 Re8 Bg8 Ne4 Qf6 Rd8 Rd3 Bd6+ Kd5 Rd7 N2a4 Bc3 Nb2 Bcb4 Rd1 Rc7 Rd2 Rc4 Rd3 Bbc5 Rd1 Ne2 Kc6 Rd4 Rd3 Rd5 Rd1 Rf5 Rd5 Bd7+ Kb7 Bc8+ Ka8 Nd4 Qe5 Kb5 Qf4 Ra4 Qf2 Rb4 Qd7+ Ka5 Qe8 Rc4 Qf8 Rb4 Qh6 Ra4 Qf6
kN1qb1bn/4q3/BN3Q1Q/5r1Q/n1p3p1/1n2R1P1/r1P1rnPp/3BRK2 b - - 0 1 legal: proof: b4 f5 e4 fxe4 b5 d5 b6 d4 Nc3 e6 Ba3 Bd6 Nb1 Bg3 hxg3 axb6 Be7 b5 Bg5 b4 Be3 dxe3 f4 Kd7 a4 Kc6 d4 g5 f5 h5 a5 b5 f6 Kb7 d5 c5 f7 g4 f8Q b3 d6 e2 d7 b4 Qf7 e5 Qfd5+ Nc6 Q5d3 h4 Qe3 b2 Qf3 b3 Nc3 b1B Nd5 h3 Qf2 b2 Rh2 Qf8 d8Q Rh5 Qdd4 Nge7 Qa4 Bd7 Nc7 Ng6 Qdf6 Nd4 Qe3 Ba2 Qh8 b1N Qf4 Bg8 Ra3 c4 Ra2 Qd8 Qhf6 Nc3 Ra3 Be8 Rh1 h2 Nd5 Nh8 a6+ Ka7 Kf2 e1N Qa5 Rg5 Be2 e3+ Kf1 e4 Nf3 Nd3 Nb6 Rc5 Bd1 Nf2 Q4h6 e2+ Ke1 Kb8 a7+ Kb7 Kd2 e1R Ne5 Rd5 Ned7 e3+ Kc1 e2 Kd2 Rb5 Nb8 Rg5 Qaf5 Rh5 Q5g6 Rf5 Qgh5 Rf1 Rb3 e1Q+ Kc1 Qee7 Kd2 Re1 Rf1 Ree5 Re1 Nce4+ Ke3 Re6 Rd3 Nb3 Ke2 Nc3+ Kf1 Re2 Re3 Ra5 Re4 Ra2 Re3 Na4 Nc6 Rc8 Nb8 Rc5 a8B+ Ka7 Bc6 Rf5 Bb5 Kb7 Ba6+ Ka7 N6d7 Ka8 Nb6+
brr4Q/NQ2qn2/2Rq4/4p1p1/4p1kP/B1RB1b1B/1bP1nPN1/1K4nn b - - 0 1 illegal: No possible last move
KnQ1b3/b1r1N3/qqB3b1/ppB2RBQ/r1kn4/1bPN1p1P/6rP/1R6 b - - 0 1 illegal: No proof kernel
3q3R/rQrrn3/1B2n2P/Rb1PN3/1N3Q2/bR1np3/Pp2kp1K/3nq2B b - - 0 1 illegal: No proof kernel
n6K/qr1kR1r1/Rr4pb/3P4/3P3P/1Np1pnQB/b2qb3/1Q1r1NBN b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f6 Bc4 fxe5 Bf1 e4 Ke2 c5 Ke3 b5 Kf4 e5+ Ke3 g6 h4 c4 a4 b3 d3 c3 a5 b2 f3 g3 a6 g2 a7 b4 Bd2 b3 Nh3 g1Q+ Nf2 Ne7 Ra6 Nbc6 Bh3 Rb8 a8Q Rb6 Qb8 Rh7 f4 Rg7 f5 Kd7 Qf3 Nd4 Qg3 Nf3 d4 Qh2 Rd1 Qc7 Re1 Qa7 Nh1 Bb7 Bc1 Nc8 Nd2 b1R Nf1 b2 Re2 Bc6 Re1 Bb5 f6+ Re6 f7 Nb6 Re2 Na8 Bd2 Rd1 Be1 b1B Bf2 B5d3 Bg1 Ba2 Qb1 Qg2 Rb2 Be2 Rbb6 Kd8 Rc6 Re7 Re6 Rb7 Qc2 Rdb1 Qc1 R1b6 Qb1 Be7 f8N Bg5+ Qf4 Kc7 Nd7 Bh6 Nc5 Qh2 Nb3 Kd7 Qg5 Qf4+ Kf2 Qd2 Kg3 e3 Kg4 e4 Kf4 Ne1 Ke5 Nf3+ Kf6 Bd1 Qf5 e2 Qg5 e1R Qg4 e3 Qg3 Rg8 Kf7 Be2 Kf6 Rc1 Kf7 Rg7+ Kf8 Rh7+ Kg8 Rg7+ Kh8 Rd1 Re7+
1b2b1n1/3R1R2/NqP2kb1/1prrn2P/2QrQ2K/6p1/P4p1b/1BQNq1B1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 Ke7 Kg3 f5 h4 b5 e4 d5 c4 g5 c5 b3 e6 b2 e5 d3 h5 d2 Qe1 d1R Bh3 d4 Ne2 d3 Bg2 f4+ Kh2 f3 Kg3 d2 Na3 b1B Rf1 Bg6 Nc3 Qb6 Nc2 Nc6 Nb4 Bd7 Na6 Rc8 Qe4 Rh6 Qc4 Bde8 Bb2 Rd8 Rf2 Rc1 Nd1 Rd5 Bd4 Rh7 Bh3 Rf7 Rf1 Rf4 Bg1 Rfd4 Rf2 Bh6 Bf1 Rc3 Bd3 Bf8 Bb1 Rc1 Kh2 g3+ Kh3 g4+ Kh4 g2 Rf1 Bh6 Rf2 Bf4 Rf1 Nb8 c6 g3 Rf2 Nd7 Rf1 Kf8 e7+ Kg7 e6 Ne5 Rf2 Kf6 Rf1 Bef7 e8Q Rc3 Qd7 Be8 e7 Rc2 Qh3 Rc1 Qh1 Rc3 Nb2 d1Q Rf2 Qe1 Nd1 Bd7 e8Q Rc2 Qc8 Bde8 Qg4 Rc1 Qa4 Rcc5 Qc4 Nd7 Qc1 Bb8 Qe4 Ne5 Qh3 Rd2 Qhg4 R2d3 Qec4 R3d4 Rd2 Qe3 Qe4 Qe1 Be3 g1B Bf2 Bh2 Bg1 Rd6 Rd3 f2 Rf3+ Ke7 Rf8 R6d5 Rf7+ Ke6 Qa3 Bc7 Nc3 Rd3 Bc2 Bb8 Rd1 Rd2 Bb1 Rd3 Ra7 Kf6 Qc1 Rd7 Rc7 Re3 Rd5 Rd3 Nd1 Rd4 Ra7 Rh7 Rd8 Rhd7 Rc7 R7d6 Re7 R6d5 Rdd7 Bd6 Rg7 Bb8 Rgf7+
Bb1n2Bk/1Q6/1p5P/rPr4q/1Rp1bQP1/3n2Kp/1QNb1R2/rq1Nb3 b - - 0 1 illegal: No proof kernel
q1Rb2K1/3r1QQ1/PNN1r3/4N3/1p1Pnp2/1Pq1pBq1/RB2b3/n2bk1q1 b - - 0 1 illegal: No proof kernel
n7/4qb1Q/p2QP3/2n1N1qp/Pkq1Rq2/1N1bR1pB/1B1KP1r1/4rbQ1 b - - 0 1 illegal: No proof kernel
2R1k2q/2b4P/3p3B/PNQ2qp1/n2R2b1/nB1n1rp1/2P1qBrN/4Q1nK b - - 0 1 illegal: No possible last move, all moves rejected
1B4n1/b1r3Qp/1kP1q3/1Bq1n1qn/K1b3pP/2QPq2p/2R5/Rr1Q1N1N b - - 0 1 illegal: No proof kernel
qQ1n4/r2RQP2/r1nq1pkp/1b3rNB/2P2n1p/N3r2P/1K2b2R/1Q2B3 b - - 0 1 illegal: No proof kernel
r1R2bbQ/2R2prP/2k1n3/2r2B1Q/5P2/1rq1RKpp/2P1N1B1/qn2N2b b - - 0 1 illegal: No possible last move, all moves rejected
1r3nk1/brqPB2P/R1Qqn3/4p1N1/2Rq3P/p4QbQ/2N1Bqp1/1bK5 b - - 0 1 legal: proof: e4 b5 c4 d5 a4 bxa4 g4 dxc4 e5 h5 gxh5 f6 Qg4 fxe5 Qd1 e4 h4 Kf7 b4 g5 d4 c5 Kd2 e5 f4 a5 d5 c3+ Kc2 g4 b5 e3 h6 c4 b6 a3 b7 a4 f5 e2 d6 e1Q f6 g3 Bb2 g2 Rh2 a2 Qc1 a3 Ne2 Qf2 Qe3 Na6 b8Q Ra7 Nd2 Rb7 Bc1 Ne7 Qh3 Kg8 Nf3 Nc7 Qa8 Ne6 Rh1 Ng6 Rb1 a1Q Ng5 Be7 Rg1 Ngf8 Rb6 Bd7 Kd1 c2+ Kd2 Be8 Ra6 Bg6 d7 Qb8 Rh1 Bc5 Rg1 Qc7 Qc8 Qb8 Qc6 Ba7 Rh1 Bd3 Rg1 Qd6 Rh1 Qg1 Nd4 Qf2+ Be2 Qb2 Nf5 Qbb6 Ne3 Qbd4 Rf1 Qg1 Rf4 Qf2 Bb2 Bg6+ Kc1 Be4 Bc3 Bd3 Kd2 c1B+ Kd1 Bd2 Bb4 c3 Nc2 Be1 Kc1 Bh7 Na1 Bb1 Nc2 Qf3 Re4 Bg3 Rg4 Qff2 Bc5 Q4d5 Rc4 Qdd4 Bb4 Rh7 Bc5 Re7 Bb4 Re8 Bc5 Reb8 Bb4 Qc7 Be7 Qcd6 f7+ Kh8 Rc5 Nd8 Qc8 Qc6 Ne3 c2 Qc7 Qg6 Qd6 Nh7 f8Q+ Qg8 Qff5 Qe6 Qf3 Kg8 Rc3 Nf8 Qc5 Qa4 Kd2 Qd6+ Qcd5+ Nde6 Rc5 Qac6 Rc3 Qcc7 Rc4 Bd4 Qc6 Ba7+ Kc3 c1Q+ Nc2 Qf4 Qb5 Nd4 Qbc6 Qe4 Kd2 Nde6+ Kc1 Qed4 h7+
1b1K2NQ/1b1PPPRp/5Q2/R2nq1pb/3b1B1r/4n2B/1pn5/1Nrq1R1k b - - 0 1 illegal: No proof kernel
2n5/q1P1NpN1/k3rP2/q1Rb3P/rpnb3q/1Bn2qQp/B4R1K/1Q1R4 b - - 0 1 illegal: No proof kernel
4q1Qn/KRp5/1P1rpQ2/RBN1bq2/1nqpPP1Q/1rb3Nk/n3n3/B7 b - - 0 1 illegal: No proof kernel
5r1r/RP2Q3/1kp1P1nP/2q2p2/rb1rb2p/1NQR1B1N/2KB4/2nBqb2 b - - 0 1 illegal: No proof kernel
4n2B/1p5B/b3Nr2/3RP1Nb/P2rPqkQ/4bq1N/pK1Qp1r1/1n1b3R b - - 0 1 illegal: No proof kernel
1n1Br2n/PN3q1p/p1Q1r1N1/nB3q2/K3Pbk1/1R2Pbp1/R1Q1q1n1/5Q2 b - - 0 1 illegal: No proof kernel
4b1K1/pB4R1/1rnQ1P1N/1P1pn3/1q1rP2p/R1NrknB1/3bq3/n2B2Q1 b - - 0 1 illegal: No proof kernel
2RNB3/pn3r1b/q2p2N1/1P2B1bn/3kPnK1/1q1p2Q1/RR1Q1P1q/1q5r b - - 0 1 illegal: No possible last move, all moves rejected
3r4/1B2Q2r/3N2rq/R1B3BP/2KNrb1p/k1Ppp2P/1bn2r1r/1QnR4 b - - 0 1 illegal: No possible last move
bR6/bpB1n3/2rrqb1k/Q5n1/1PQR1Bpb/p5b1/3N1P1P/1QK1bN2 b - - 0 1 illegal: Other
7r/K3kn1P/3PB1br/N1r4R/Bp1pn3/2nP2n1/1bp1Qq2/N1Qr1RR1 b - - 0 1 illegal: No possible last move, all moves rejected
3N3K/n2kPb2/2rb3P/1r3nP1/Rb2NppQ/7N/R1bQBp1q/5nBn b - - 0 1 illegal: No proof kernel
b4N2/2r1p1rB/2P1Rk1r/P3bnn1/b3QpQ1/2NPB1R1/K1p2r1q/1B3b2 b - - 0 1 illegal: No possible last move, all moves rejected
Q1b5/qp1q3b/1PPNk3/3r2nQ/2b2N2/1p1p1QbB/3R1qPR/1b3nBK b - - 0 1 illegal: No possible last move
6n1/2k2r1p/BnPRRp2/p2rP1rb/PB5K/2q1NQQ1/1rrq2Nn/1Q6 b - - 0 1 legal: proof: f4 g5 c4 e5 c5 exf4 c6 bxc6 Qb3 c5 Qd1 c4 d4 c5 h4 gxh4 Qc2 c3 Qd2 c4 Qd1 Bc5 dxc5 Qa5 Kf2 Qb6 Ke1 Qd8 Kf2 Ne7 a4 a5 g4 d5 b4 Kd7 e4 f3 g5 c2 b5 f6 b6 d4 e5 c3 g6 h3 Kg3 f2 g7 d3 g8Q h2 b7 d2 Qb3 Rg8+ Kh4 Ra7 Qa3 Rg5 Nf3 Ng8 Bd3 f1N Qe1 d1R Bd2 c1Q Ba6 c2 Qg3 Qb2 Qe3 c1R Na3 Kc6 Ra2 Bg4 Ne1 Nd7 b8Q Bh5 Nc4 Qc2 Qb1 Nb6 Nd3 Rc7 Bb4 Rf7 Ne1 Kc7 c6 Qc3 Qef3 Rd3 Rg1 h1R+ Rh2 Rd2 Ne3 Rb2 Rg2 Qd1 Rd2 Rcc2 Rd4 Rg1 Rhd2 Nh2 N1g2 Qe2 Rd8 Rd1 Re8 Qe1 Rd6 Rd5 Ree6 Qe2 Qh1 Qed2 Qb1
Q1n5/1N2rb1q/1pKbk1R1/4pq2/3qB2P/1qB1PP2/pBRq4/1Q1Nn2b b - - 0 1 illegal: No proof kernel
4Nq2/6NQ/nK3p1r/1p1Pn2Q/1Q1PRq1R/nP3pnB/3rn3/k1b3Bq b - - 0 1 illegal: No proof kernel
2r1qN1K/N2q1B1p/q3nBRP/1P2n3/k1P2B2/3QRp2/pr2Q1qb/q1q5 b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 Be3 bxa4 Bc1 e5 g4 f5 Ra2 Bb7 Ra3 Be4 Ra1 exf4 Be3 f3 Bd2 f4 Bc1 Bf5 gxf5 Bd6 Na3 Bc5 Nb1 Bf8 Kf2 g5 h4 a5 e4 d5 b4 Kd7 c3 Kc6 f6 a3 f7 g4 h5 a2 e5 a4 e6 g3+ Ke1 d3 Kd2 Kb5 e7 f2 e8Q+ Nc6 h6 d4 Rh3 f3 Qd7 a3 Qe2 g2 Rg3 Rb8 Rg6 Ka4 Nh3 g1Q Nf4 Qe8 Ne6 Bd6 f8B Bh2 Bg7 Qg2 Nf8 Ne7 Bf6 Nf5 Qd6 Ne5 c4 Ng7 Nc3+ Kb3 Qd5 Ne6 Nb5 Ka4 Na7 Rg8 Rb1 a1Q Rb3 a2 b5 Rc8 Rg7 Qgg6 Bh3 f1Q Bg4 Qg2 Bh5 Qd7 Qe4 Qge8 Bf7 Qd6 Rg6 Qa6 Kd1 d2 Kc2 Rg7 Re3 Rg8 Bb2 d3+ Kc3 d1Q Qd5 d2 Qdd3 Ng7 Kd4 Ne6+ Kd5 Qe1 Bc1 d1Q Ke4 Qec3 Kf5 Qd4 Ba3 Qdd7 Bd6 Ng4 Bf4 Ne5 B6g5 Rg7 Kf6 Qe1 Bg8 Re7 Bf7 Qec1 Bh4 Nd4+ Kg7 Ne6+ Kg8 Nc7 Re4 Nc6 Qb2 Re5 Re2 Ne6 Kh8 Re4 Bd8 Ne5 Bf6 Re3 Re1 Re2 Qbd2 Rf2 Re3 Re2 Qe1 Rb2 Qee2
n1Rqq3/qR3pnb/3r1PqN/1p6/qP5K/1q3rBP/NQ2kp2/1R2B2Q b - - 0 2 legal: proof: f4 b5 g4 c5 a4 h5 d4 cxd4 f5 e6 a5 Ba3 f6 Bc5 Bh3 Bb6 axb6 hxg4 Bg2 Rh4 Be4 Rh8 Bf5 exf5 Kf2 a5 Kg3 g5 c4 d5 b4 Kd7 e4 Ke6 b7 Ke5 h3 d3 c5 Kd4 e5 a4 e6 a3 c6 d2 e7 Ke3 e8Q+ Ne7 c7 f4+ Kg2 g3 Nf3 d4 Nc3 g4 Nb1 a2 Na3 d3 Qg8 Bf5 c8R Nd7 b8B Nb6 Be5 Qe8 Bb8 Bh7 Rc4 Nf5 Rc5 Ng7 Nh2 f3+ Kg1 g2 Rb1 a1Q Qb3 Ke2 Bg3 d1Q+ Be1 d2 Qb2 Qb3 Rc7 Ra5 Qf8 Na8 Rb7 Rg8 Qd6 Ra6 Qd5 Rd6 Qc6 Qaa2 Bg3 Qa4 Qd5 Q2b3 Qc6 Kd3 Kf2 d1Q Re1 Qd2+ Re2 Qdd1 Bcf4 Qd2 Bh4 Qdd1 Kg3 g1Q+ Rg2 Qc5 Rc2 Qca7 Bd2 f2 Be1 Qd2 Qh1 Ke3 Rc8 Ke2+ Kg2 g3 Ng4 Kd3 Kf3 g2 Nh6 g1Q Bg3 Qg2+ Kg4 Ke2 Kh4 Qg1 Bh2 Qg6 Bg3 Rd3 Nc4 Rf3 Ne5 Rf8 Qc1 Qdd8 Nd3 Qe5 Qc3 Re8 Qa1 Re6 Qa3 Rd6 Nc1+ Kd1 Qa1 Qee8 Na2+ Ke2 Qb2+
3nBq1N/r2qqQ1p/3N2r1/3q1b2/1bp1RK1R/1qPQp3/B2kqP1P/7Q b - - 1 2 legal: proof: g4 f5 e4 d5 b4 a5 Na3 axb4 Nb1 f4 Ba3 dxe4 Bb2 Nc6 Bf6 Nd4 Bg5 Nf5 gxf5 Kf7 Bf6 Ke8 Bd4 Qd7 Bc5 Qd8 Be3 fxe3 Ke2 Kf7 d4 Kf6 a4 b5 c3 e5 a5 c5 a6 g5 d5 c4 d6 b3 d7 b4 a7 b2 Ra2 g4 Qc2 g3 Nf3 b3 Ra5 g2 Qc1 g1Q Na3 b1Q Qd1 b2 Ne1 Qg2 Nf3 Ne7 Rd5 Rg8 Ng5 Rg6 Rd4 Nc6 Nb5 Bb4 Nd6 Qf8 Ngf7 Nd8 Nh8 Kg5 f6 Kf4 f7 Qd3+ Ke1 e2 Qb1 Qdh3 Kd2 Kf3 Rg1 Qh1 Rg4 Q1g2 Rh4 e1Q+ Kc2 e3 Bd3 e2 Rde4 Qef1 Kd2 Qhg4 Bc2 Qgh1 Bb3 e1Q+ Kc2 Qe3 Ba2 Qc5 Kd2 Qe7 Qe1 b1Q f8Q+ Qf5 Qf7 Qb3 Qb1 Qf8 Nb7 Qce7 Nd6 Qhg2 Re2 e4 Re1 Rb8 a8B Rb7 Re2 Ra7 Bc6 Nb7 d8Q Bd7 Qa5 Nd8 Qc7 Be6 Be8 Qg4 Qg7 Qd5+ Qd4 Bf5 Qb7 Kg2 Ke3 Qfd1 Qf6 Kf1 Qf7 Qh5 Rd2 Ke1 Rd4 Qe2+ Kf4 e3 Re4 Kd2 Re6 Qb5 Qh1 Qbd7 Re5 Qd3 Re6 Q1e2 Re4 Qd5 Qd3+
N1R5/3Q3P/BR1Qrnp1/p2bprrR/2P4K/P1rq4/1Bn1Nk2/1r2n1n1 b - - 0 1 legal: proof: e4 f5 c4 fxe4 g4 h5 c5 hxg4 c6 bxc6 Bd3 c5 Nc3 c4 Nb1 c3 Bf1 c2 b3 c5 Ke2 c4 Na3 e6 Bb2 c1N+ Ke1 c3 Nb1 c2 Ba3 Bd6 Bd3 Bb4 Bf1 Bc3 dxc3 Qa5 Qd2 Qc7 Qd1 Qd8 f4 Kf7 Kf2 Kf6 Kg3 Kf5 h4 d5 b4 a5 h5 d4 h6 d3 b5 g6 b6 d2 c4 e5 h7 e3 b7 Ke4 f5 e2 f6 Ke3 f7 e1N f8R Na6 b8Q Nb4 Bb2 Ra6 a3 Re6 Nc3 Ne2+ Kh2 c1R Na2 g3+ Kh3 g2 Rb1 Nbc2 Nc3 Nf6 Nb5 Kf2 Kh4 Bb7 Qd6 Bd5 Nc7 Qd7 Rc8 Rf8 Na8 Qd8 Nf3 g1R Bh3 Rg5 Nd4 Ng1 Qg4 d1R Ne2 Rd3 Bg2 Rc3 Bf3 Ree8 Qgd7 Re6 Bg4 Ne8 Bf3 Rff5 Be4 Nf6 Bf3 Bb7 Bc6 Rd1 Bb5 Bd5 Ba6 Rc1 Ba1 Rd1 Rb6 Rb1 Bb2 Qc7 Rh3 Qc5 Rg3 Qe3 Rg4 Qd3 Re4 Rg3 Rg4 Rg2 Rg5 Rg3 Rh5 Rg2 Rb5 Rgg5 Rb6
3n2R1/2N3P1/3Qnp2/1qPBR3/rq4n1/b1k2P1K/B2npp1n/1rQ1BnN1 b - - 0 1 illegal: No proof kernel
bQn2qN1/2PnbB2/2p5/1PNrB2R/3R4/b1Pp3k/n4Q1p/2bQnK1n b - - 0 1 legal: proof: f4 e5 d4 exf4 h4 g5 a4 gxh4 a5 c6 a6 bxa6 d5 a5 d6 a4 Rh3 a5 Rh2 Ra7 Rh1 Rc7 dxc7 Bd6 Qd5 Ba3 Qd1 Bf8 g4 Ke7 e4 Ke6 b4 h5 g5 f5 e5 d5 b5 a3 c3 a2 g6 a4 g7 d4 Qc2 h3 Be2 h2 Nh3 a3 Bd3 f3 Qd1 f2+ Ke2 f1N Be3 f4 Rg1 h1N Rg3 f3+ Ke1 f2+ Ke2 h4 Qd2 Nh2 Bg6 f1N Bc2 d3+ Ke1 Kf5 e6 Rh5 e7 Nd7 e8Q Bb7 Bc5 Nf3+ Kd1 Ne1 Bd4 Ne7 g8Q Nc8 Nf4 h3 Qee2 h2 Nd5 Be7 Bb3 Qf8 Nf6 Ba8 Rh3 Nfg3 Bf7 Rg5 Qg2 Ne2 Be5 Nc1 Qh8 Rh5 Ng8 Rg5 Qf1+ Kg4 Qdf2 Rf5 Nd2 Rh5 Rb1 a1B Rb3 a2 Ne4 Bb2 Rb4 a1B Rd4 Na2 Kd2 Rf5 Rh5 Bba3 Kd1 B1b2 Kd2 Bh4 Q1g1+ Kh3 Nc5 Ng2 Qd1 Ne1 Bg7 Rd5 Be5 Bb7 Qhf6 Ba8 Qd8 Ncb6 Qb8 Nc8 Ke3 Bc1+ Qfd2 Ng3 Kf2 Nh1+ Kf1 Nc2 Qf2 Ne1 Rf5 Be7 Rh5+
1rk5/K2bQ1p1/B1p2RrR/3qnrr1/P1NBpNNn/2qQ1n2/n3PP2/8 b - - 0 1 illegal: No proof kernel
NKb2N2/r7/QRp1q3/q1nQkp1P/Q1r2q1p/5rB1/R1P2P1n/1rq2B2 b - - 0 2 illegal: No extended proof kernel
5KB1/R1n3np/n3q3/1Q1Q2qr/2PPrN2/1rpQ1pBN/1kRn2bP/3r4 b - - 0 1 illegal: No proof kernel
1R4Q1/r3n3/1Rpn2n1/1QKPrr2/p2PpN1B/3BNbR1/P3bp1b/q5k1 b - - 0 1 legal: proof: f4 b5 g4 h5 c4 hxg4 e4 bxc4 f5 d5 exd5 g6 Qe2 gxf5 Qd1 f4 Kf2 Kd7 b4 Kd6 h4 Ke5 b5 Ke4 h5 f5 b6 e5 h6 a5 b7 c3 h7 a4 Ba6 c2 Rh3 f3 Rh4 f4 Qf1 g3+ Ke1 c6 Rh3 f2+ Ke2 g2 Bb5 Na6 b8Q Ra7 Rg3 Ne7 Qa8 Bg4+ Rf3 Nc5 Qd1 f1B+ Kf2 Be2 Rd3 f3 Bc4 Nb7 Na3 Nd6 Bb2 c1R Nh3 g1N Qb3 Re1 Rb1 Qa5 Qbb7 Qc3 Nf4 Rg8 h8R Rg5 Bb5 Rf5 Nc4 Qc1 Ne3 Nh3+ Kg3 Bh6 Qg8 f2 Bc4 Bg5 Qb5 Bgf3 Ra3 Bh6 d4 Qc3 Bc1 Qa1 Bd2 Bg5 Ba5 Bh6 Bd8 Bg5 Qa5 Bf6 Rb6 Bg5 Qb5 Bf6 Ne6 Nf4 Rd3 Nfg6 Nf4 Bg7 Rc3 Nec8 Bh4 Nce7 Qe6 Bh6 Rhb8 Bf8 Qg8 Bh6 Nd3 Bf4+ Kh3 Bh1 Ng2 Kf3 Rc8 Ne4 Rcb8 Bd1 Ra3 Ke2 Kg4 Bh2 Rc3 Bc2 Ra3 Kf1 Rb3 Kg1 Ra3 Rh5 Ndf4 Bd1+ Rf3 Re2 Rg3 Rg5+ Kf3 Re1+ Be2 Nd6 Ke3 Rh5 Kd2 Rf5 Bd3 Re4 Ne3+ Bg2 Rh3 Be2 Kc2 Bgf3 Kd2 Qd1+ Kc3 Qa1+ Kb4 Rh5 Nfg2 Rf4 Rg3 e4 Kc5 Re5 Bg5 Rf6 Bh4 Rff5 Nf4+
5N1k/1n1R1K1R/pbbQn2B/1Np2B1P/1n1P3p/6rN/rP1p1r2/4Qb1q b - - 0 1 illegal: No proof kernel
qbn3n1/1QB3p1/4b3/3rB1R1/k1N3rp/B1nPPp1N/p4R1P/rb1QK3 b - - 0 1 illegal: No proof kernel
1r2rrk1/4pp1B/3bP1q1/KQ2P2n/1R2bnb1/R1n2NQ1/2Pp1p1B/1N4R1 b - - 0 1 illegal: No possible last move
1bn1b3/p6K/bP2NB1N/1Q1q4/2prRrB1/3nrPkp/1P1Qp3/4nRR1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 h5 Kg5 Ke5 Kg6 Kf4 d4+ e3 g4 c5 b6 e5 g5 h3 d5 c3 d6 c4 d7 e4 Rh2 h4 Ra4 c2 Be2 Bd6 Nf3 Na6 Qd2 Nb4 Nc3 Bb8 Nb5 Ba6 Rh1 h2 Ne5 h3 Ng4 Nd3 Nc7 Rh4 Nh6 Ne7+ Kh7 Nc8 g6 Ne1 Rf1 h1B g7 Qg5 d8Q Qd5 g8R Bf3 Qd7 Bh5 f3 Be8 Ra1 Rg4 Rh8 Kg3 Bd3 e2 Qb5 e3 Ne6 Rd4 Bf5 Nd3 Rf8 e1N Bg4 e2 Rf5 Rf4 Re5 Rd4 Qc3 Rf4 Be3 c1R Re4 Rd1 Bd4 Nc1 Bf6 Rd4 Qd2 Ncd3 Qa4 Bc7 Rc1 Rb8 Qd7 Rb7 Qb5 Bb8+ Kg8 Re7 Rh1 Ng2 Rcf1 Nge1 Kh8 Bf7 Kh7 Be8+ Ng7 Re5 Ne6 Rff5 Rf4 Re3 Re4 Rf4 Rhg1+
8/bQrBQNK1/1r1bq3/1p2n3/BP1q2bp/1P2Rn1N/Bk1p1P1p/1q5R b - - 0 1 illegal: No proof kernel
3qR3/1n2q1Qr/2ppQ3/1b4qN/N2P2P1/K1p1pk2/1RPnBN2/nr1B2b1 b - - 0 1 illegal: No possible last move, all moves rejected
QN2r2q/3RnqbR/1p1r1b2/4pr2/3p1P1Q/nB2P1Np/1KPn4/2B2kB1 b - - 0 1 illegal: No proof kernel
1KRn4/1N4P1/q2B1bpP/2pnp1qp/b4NP1/1N1qBQr1/rQk2r2/3R4 b - - 0 1 illegal: No proof kernel
1b6/rqkp3R/3Nb3/rPbN1pQp/1p3R2/nB2Q1PK/B3N2P/rqn5 b - - 0 1 legal: proof: d4 b5 b4 c5 f4 e5 a4 exd4 Ba3 g5 axb5 gxf4 b6 Ba6 b5 Bc8 Bb4 cxb4 Kf2 f5 e4 h5 c4 a5 b7 a4 g3 d3 Kg2 a3 e5 d2 c5 f3+ Kh3 f2 e6 a2 e7 Nc6 b8Q Nd4 c6 Nh6 c7 Nb3 Be2 f1R Kh4 Ra5 Bc4 Bb7 c8B Qb6 Nc3 Nf7 Qe2 d1Q Qe1 Nd6 Kh3 Bd5 Qe4 Qd3 Re1 a1B Qe2 Qc7 Bb7+ Qc8 Qf3 Bg8 Bcd5 Nc4 Qbf4 Na3 Qg5 Bf7 Bbc6 Qb7 Re3 Bb2 Nge2 Ra1 Rf1 Nc1 Ba2 Qb1 Bcd5 Rh6 Rf2 Rha6 Bdb3 Ra7 Nd5 Be5 Re4 Bd6 Qfe3 Bb8 Re6 Bg8 Rh6 Be6 Rf3 Bg7 Rh7 Bd4 Rf4 Bc5 Rh6 Kf7 e8N Kf8 Ndf6 Ke7 Rh7+ Kd8 Nd6 Kc7 Nd5+
1K2B1b1/1B1p1QN1/rP1rq3/6kQ/1nPPqp2/1RppB1n1/b5b1/1q3NR1 b - - 0 1 illegal: No proof kernel
2R2N1q/k1PKN3/1P5Q/pQP2R2/q1Bn2p1/2nr1q1b/p1B2b1p/2r1r1B1 b - - 0 1 illegal: No possible last move
1KNrk3/R1P1Q1Bq/bPp1pP2/pn3Bb1/3Q1n1r/qR4p1/6r1/N2nB3 b - - 0 1 illegal: No proof kernel
4K3/b1p4R/Bnrkp3/1QNNP3/1R2q2P/Bnb1q1P1/pp4Q1/2q1B1br b - - 0 1 illegal: No possible last move, all moves rejected
7q/npbp3R/2Q3rP/q1B3RB/2P2PN1/1bn3pk/QKp1r2N/R3b1r1 b - - 0 1 illegal: No proof kernel forced: wxLB
1r1kn3/P1r1n2q/1R2b3/6K1/N1p1NP1B/Rp1QbBpQ/1qp1bP2/4q2N b - - 0 1 legal: proof: g4 a5 c4 h5 b4 hxg4 e3 axb4 c5 f5 c6 f4 exf4 dxc6 Ne2 c5 Ng1 c4 Ke2 c5 Ke3 g5 d4 b5 a4 e5 h4 e4 d5 c3 h5 c4 a5 b3 a6 g3 d6 g2 h6 b4 h7 b2 a7 b3 Rh3 g4 Ra4 Qd7 Be2 Nc6 Nd2 b1B Bf3 Bd3 Ba3 c2 Rh6 Kd8 Ne2 g1Q Ng3 Nf6 Nh1 g3 Ra6 Qc7 d7 Be2 Rg6 Rg8 h8Q Rb8 Qh3 Rg7 Bc5 Qb7 Ra3 Ne7 Qdf1 Ne8 Rb6 Qh2 Bd4 Qc7 Bf6 Qe5 Bh4 Qb2 Qd1 Bb7 Qdf1 Bd5 Qd1 Be6 Qdf1 Kc7 d8N Kc8 Nb7 Kd7 Nd6 Kd8 Nb5 Rh7 Nc3 Rg7 Kd4 e3 Ke4 Rf7 Qd1 Bg7 Qf5 Bd4 Na4 Qh3 Bf6 Qh7 Bh4 Bc5 Qf1 Bd1 Qh3 e2 Qg6 Be3 Qgf5 e1Q Qg6 Qb1 Ke5 Be2 Qd3+ Nd6 Ne4 Qb2+ Qc3 Rg7 Kf6 Rf7+ Kg5 Ne8 Bh5 Ng6 Bg4 Rc7 Bf3 Ne7 Qd3+
nn6/N3k2r/3N3n/r4p2/3Q1PQK/Bb1P1p1p/pb1q2Pn/RR2nBN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qb3 e5 Qc3 e4 Qf3 exf3 Kf2 h5 e4 f5 b4 a5 e5 c5 b6 h3 Kg3 a4 b5 c3 b7 a3 e6 c2 b6 h2 e7 a2 Kh3 h4 Ba6 c4 Nc3 Rh7 Bb2 c1N Nd1 c3 Bf1 c2 Ba6 Nh6 Bd3 Nb3 Be4 c1N Bd3 Bg7 Be2 Nd4 Bf1 Ne6 Ba3 Nc7 Nc3 Be6 Nb5 Ra5 Na7 Nd3 Rb1 Kd7 e8N Bb2 Nd6 Ne1 d3 Na8 Ra1 Ke7 Rb1 Bb3 Ra1 Nd7 b8Q Qe8 Qc8 Nb8 b7 Qh8 Qc6 Qc3 Qc4 Qd2 Qd4 Ra4 Ne2 Ra5 Rg1 h1N Rb1 Na6 b8Q Ng3 Qg8 Nb8 Rh1 Qd1 Ng1 Qd2 Kh2 h3 Qg4 Nh5 Ra1 Nf6 Kg3 Nc6 Qg8 Nb8 Kh4 Nfg4 Qg6 Nh2 Qg4 Bf7 Rb1 Bb3 Ne2 Nc6 Ra1 Nc2 Nc3 Kd8 Be2 Kd7 Rhb1 Ne1 Bf1 Ke7 Ne2 Nb8 Ng1
2nNb2B/n5Q1/n1Pbp1P1/1prQ2q1/1R2rp1N/KP4k1/p4R1B/n1B3n1 b - - 0 1 illegal: No possible last move
3r3k/K2Qpp2/P1R5/1r1b1p2/4Rnb1/N2P1B1Q/1P1pbnNq/3bbBB1 b - - 0 1 illegal: No proof kernel
K1R3nR/2pr1Pbn/P7/2BnQ2k/2n4p/Q1PN1bpq/3B1RNp/2r2n2 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 d5 exd5 gxh4 g5 f6 Bh3 f5 Bg4 fxg4 Ke2 Kf7 Kd3 Kg6 Kc4 e5 Kb5 h5 a4 g3 d4 b6 f4 b3 c3 e4 f5+ Kf7 a5 e3 a6 b2 d6 h3 f6 Kg6 d5 e2 f7 e1N d7 Bg7 d6 Nd3 Nd2 b1N Nb3 Bb7 Qe1 Nf4 Nc5 Nd2 Qe5 Nd5 Nd3 Nf1 Ne2 Qc8 d8B Nd7 Be7 N7f6 d7 Nh7 d8R Qe6 Rf8 Rd8 Ra2 Rd7 Bc5 Qf5 Rc8 h4 Bd2 Kh5 g6 h2 Rg1 Ba8 Ra5 Bb7 Rg2 Ba8 Rf2 Bc6+ Kc4 b5+ Kd4 b4 Nef4+ Kh6 Ng2+ Kh5 Rb5 b3 Rbb8 b2 Kc4 Bb7 Kb5 b1N Ra8 Nb6 Rab8 Bf3 Ra8 Nd5 Kc6 Na3 Kb7 Nc4 Ka7 Ng5 Rab8 Qh3 Ka8 Bf6 g7 Rh6 Qe6 Nh7 Qe1 Bd4 Qa1 Rf6 Qa3 Nge7 Rh8 Ng8 Rc8 Re6 Nb4 Re1 Nd3 Nh6 g8Q Bg7 Qe8 Rc1 Qe6 Ng8 Qe5+
2r3Q1/1PPprP2/b1n3r1/br3Q1n/1r1BN2p/R1N3NB/1pp4R/q2k3K b - - 0 1 illegal: No proof kernel
Q5K1/n3k3/b2PN2r/R1BpnQ2/6Pp/NR1pn2r/q1pbP1bb/2BB4 b - - 0 1 illegal: No possible last move
n3kr1b/1B4R1/1p1q3p/1bQ2P1K/1N1nPbpp/3r2R1/n1P3bB/1Q2BN2 b - - 0 1 illegal: No proof kernel
r3Brqn/1KR5/p5p1/2b1bnPr/1k2R1pP/rN3P1p/QQB4N/1bB5 b - - 0 1 illegal: No proof kernel
1KBN4/2QbB2p/R6r/5bbP/2Qn1P1Q/qk1Pp1pb/p3r2n/r2R3N b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 f5 a5 fxg4 a6 d3 Bg5 bxa6 Be3 a5 Bc1 a4 c3 d5 Na3 d4 Nb1 Qd6 Qb3 Qd8 Bg2 d2+ Kf1 d1B Bh3 d3 Kg2 d2 Kg3 Bb7 Bf1 Bc8 Kg2 Qd3 exd3 Be6 Qd5 Bf5 Qb3 Bc8 Kg3 Kd7 Kf4 Kc6 Ke5 Kc5 f4 a5 h4 g5 c4 g3 h5 a3 Qa4 g4 b3 g2 Ra2 g3 Nh3 g1Q Qd7 Kb4 c5 a4 c6 Ra6 c7 Nf6 Qd8 Bh6 Nc3 Bd7 c8Q Re8 Ne2 Bg5 Nd4 B1g4 Nf2 d1B Bh3 Bgf5 Ne6 Bdg4 Qdc7 Qg2 Nd8 Qa8 Rd1 e6 Be3 Nc6+ Kd6 e5 Nh1 e4 Bc5+ Kc3 b4 Kb3 b5 Nd4+ b6 Qa7 Raa1 a2 Bb4 a3 Bc5 Bc6 b7 Bcd7+ Qc6 Qa8 Kc7 Rb6 b8Q Qa5 Bf1 Bh3 Be7 Ng4 Qf6 Nh2 Qa7 Re6+ Kb8 Qc5 Qac7 Qc3 Qf8 Rh6 Qf6 Qc1 Be2 Qc5 Bg4 Qa5 Rac1 a1R Rc6 a2 Ra6 Qa3 Bb4 Re6 Bc5 Rc6 Be7 Rc2 Qc4+ Kb2 Q8c7 e3 Bf3 Re2 Bb7 Ba4 Bc8 Bad7 Qg7 Bh4 Qg4 Bg5 Q4c5 Kb3 Qh4 Bf6 Q5c6 Bg5 Qc4+
2B2n1n/rNQ3P1/Qpp1b1Nr/1pP1K3/4PBk1/Bq5r/1RR1pb2/3b2b1 b - - 0 1 legal: proof: e4 g5 b4 d5 h4 dxe4 b5 a6 Qe2 axb5 Qh5 Kd7 Qd1 Ke8 f3 gxh4 Nc3 e5 Nb1 e3 Ke2 Qe7 Kd3 e2 Kc3 e4 Rh2 e3 Rh1 Qe4 fxe4 Be6 Kd4 Bh3 Kc3 Bc8 Kd4 Ke7 a4 Kf6 c4 Kg5 g4 e1B a5 h5 d3 f5 a6 h3 a7 h2 Nd2 c6 Bh3 f4 Ra2 b6 Ke5 h4 d4 f3 d5 f2 d6 f1Q d7 Rh6 d8B+ Ne7 Nb3 Qf3 Nc5 Be6 Ne2 Bf2 Rc2 Qf7 Re1 h1B Ba3 Bf3 Nf4 Bg1 Qd2 Bd1 Qd6 e2 Qc7 Bf2 Nb7 Nd7+ Kd6 Bg7 c5 Bgd4 Ng6 Nf8 Rg1 Bde3 Ke5 Qf3 Rg3 Bg1 Rb2 Bef2 Rc2 Qf7 Rb3 Qf3 Rbb2 Qb3 Bg2 h3 Bf1 h2 Bh3 Rb8 a8Q h1R Qa6 Ra8 Qd6 Ra7 Bc7 Nd5 Bb8 Nf4 Qc7 Be3 Ne7 Kh4 g5 Bef2 g6 Kg5 g7 N4g6+ Kd6 Nh8 Ke5 Kh5 Bf5 Rh3 Ng6 Bg8 Bc8 Be6 Qf7 Kg5 Bd6 Kg4 Qc7 Rf3 Be7 Rd3 Bg5 Rdh3 Bf4
1Q4r1/NP1b3b/rp2kBp1/4n1KP/r4Np1/B1pB1R1Q/1Pb1n3/3R1qb1 b - - 0 1 legal: proof: f4 d5 g4 e5 a4 exf4 c4 dxc4 a5 h5 a6 hxg4 Ra4 b6 Ra2 Qd5 Ra1 Qb7 axb7 Rh6 Ra2 Rh3 Ra1 Rh8 Kf2 Kd7 d4 a5 h4 f5 e4 c5 h5 a4 e5 a3 d5 a2 d6 f3 Ke3 c3 Kf4 f2 Kg5 c4 Be3 c2 Na3 c1Q Bd3 f1B Ne2 c3 Ng3 f4 Bg6 f3 Kh4 f2 Nb5 Ne7 Qf3 Ra6 Bd4 Bd3 Qe3 f1B Na7 Nf5+ Kg5 Ke6 d7 Nc6 d8B Bc2 Rh3 Bfd3 Be7 Rg8 Ba3 Bd7 Ne2 Bc5 Rf3 Qf1 Rd1 a1R Bh7 Ng3 Nf4+ Kf7 Be4 Ne2 e6+ Ke7 Bh7 Ne5 Be4 Kd6 e7 Ra2 e8Q Ra1 Bd5 Bh7 Bc4 g6 Bd3 Ra2 Qb8+ Ke7 Bb4 R2a4 Ba3 Kf7 Qf2 Ke7 Qg2 Kf7 Nd5+ Ke6 Qh3 Nc6 Be5 Bg1 Bf6 Ne5 Nf4+
5N1n/1P1QQ1PB/bpK1n2r/N3pBnq/2R2b2/P1Bp4/k4R1p/r2nr3 b - - 0 1 illegal: No proof kernel
r5kQ/nPPKprp1/Bpr5/3bbn2/4Bp2/2P2NR1/2qB1R2/Qr1N2n1 b - - 0 1 illegal: No proof kernel forced: wxDB
bRQ1Qqb1/1pb1k1n1/1P3rBr/4p1R1/3rB3/1pK1pNP1/6Pn/3bQN2 b - - 0 1 illegal: Other
rbN5/p5p1/Bn1p1nQn/2NPP1Q1/b2pB1Q1/k1n1R2b/1r1P3K/3Rq3 b - - 0 1 illegal: No proof kernel
8/1B1r2PK/p2QqbNB/2n3Rp/1QP3N1/1p1p1RP1/k2rbr1q/2nr1R2 b - - 0 1 illegal: No proof kernel
1q2rB2/1R1rb1pK/P2nk1p1/P2B2R1/1bpRp1n1/2Qb2PN/b6q/5NQ1 b - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 Qg4 a5 bxa5 fxe4 Qg6+ hxg6 Ke2 Kd7 Ke3 b5 Kf4 c5 d4 b4 h4 e3 a4 e2 g3 e1B d5 b3 d6 c3 h5 c2 a6 c4 h6 b2 h7 e6 a5 Ra7 Rh5 Nf6 Bg2 Ng8 Nd2 b1B Ba3 c1Q Rg5 Qc3 Nh3 Nh6 Nf1 Bc2 Rb1 Qc7 Bc6+ Kd8 Rb7 Qd2+ Ke5 Bd3 f4 Qh2 f5 Bb4 f6 Be7 f7 Re8 f8Q Nf5 h8Q Bb1 Qf6 Ba2 Qh4 Qb6 d7 Nd6 Qd4 Qc7 Bf3 Qb6 Qg1 Nc6+ Kf4 Qb5 Qc3 Ne5 Bh1 Ng4 Bc6 Nf5 Ke4 Qb6 Kf4 e5+ Ke4 Qc7 Kd5 Qb8 Ke6 e4 Rb6 Kc7 Kf7 Kd6 d8R+ Rd7 Rb5 Bf8+ Kg8 Be7+ Kh7 Ke6 Rd5 Nd6 Rd4 Rb7 Rd7 Ra7 Rc7 Bd7 Ba8 Ba4 Bc6 Bc2 Rb7 Bd3 Rb6 Rd7 Rb7 Nc8 Bc1 Qg2 Bf4 Qh2 Bd6 Bf6 Be7 Nd6 Bf8 Be7 Bd5+
n1bN4/2n2pQn/4pP1K/1p2q2B/Pnp1q2R/QN2rP2/4Q1RB/r5bk b - - 0 1 legal: proof: c4 a5 h4 g5 b4 gxh4 c5 axb4 c6 dxc6 f3 Qd3 f4 Qf3 exf3 c5 Qb3 c4 Qc2 Ra6 Qd1 Ra8 Kf2 Kd7 Ke3 Ke6 d4 Kf5 a3 c5 d5 h5 d6 b5 g3 b3 d7 c3 d8Q h3 Qe1 c4 Qed2 h4 Rh2 b2 Q8d4 c2 Q2c3 Na6 Re2 h2 Rf2 h1Q Qdd2 h3 Rg2 h2 Nh3 Nc7 Qe2 Nf6 Nd2 b1N Nb3 Nh7 Ng5 Ra6 Qb2 Nc3 Ne6 Na4 Nd8 Nb6 a4 Nba8 Bd2 c1N Qa3 Na2 Be1 Nb4 g4+ Kg6 g5 Kh5 f5 Re6+ Kf4 Re3 f6 e6 g6 Bc5 Bc3 Kh4 g7 Kh3 g8Q Qg1 Be5 h1Q Qf8 Qf2 Rd1 Qe1 Rd4 Rg8 Bd6 Rg3 Qg7 Qh2 Qea2 Ba7 Bd3 Bb6 Bg6 Qb1 Rc2 Qe2 Re4 Kh2 Bh5 Kh1 Rb2 Qh2 Rg2 Rh3+ Kg4 Qe5 Qe2 Rg3+ Kh4 Rg6 Reg4 Qbe4 Rf4 Rc3 Rfg4 Bg1 Rf4 Re3 Rfg4 Qb2 Bh2 Rg5 Rf4 Rd5 Rfg4 Rd1 Rf4 Ra1 Kg4 Nf8 Kg5 Nh7+ Kh6 Qbe5 Rh4
1q3n1N/1Pr2qk1/P3p2N/5p1r/Q1rQqp2/3RPB2/Nnb1pKn1/B4R2 b - - 0 1 illegal: No proof kernel
2R1K3/3NB1r1/rqRQ2Nb/bp1p1P2/1Qp2N2/q1rB4/bPp1nkP1/3q4 b - - 0 1 illegal: No proof kernel
6R1/1Qk2Nbb/4b1pN/4p2B/r1qp1N2/bp2r3/1PBPPR1r/K2Qb1n1 b - - 2 3 illegal: No proof kernel forced: bxDB
4NnB1/pp1R1Bp1/P2r2P1/nQ1pr1P1/1r2Q3/Rn1R1K2/1Nq4b/k2r3r b - - 1 2 illegal: No possible last move, all moves rejected
1KnnQB1n/B7/Nb1p3R/q1qnPn1k/2pp1P2/1r1R1p2/2B2P2/2rQ1N2 b - - 0 1 illegal: No proof kernel
4BR1k/1QN1pP2/1b5q/1r1QPb1b/bN4pb/P1nB1p2/1rpB3K/5q1R b - - 0 1 illegal: No possible last move
5Bbq/5n1Q/1BB1r2R/1N1prb1p/1p1q4/P2P2p1/1b1KR2P/b3QNkb b - - 1 2 legal: proof: c4 e5 f4 exf4 b4 a6 b5 axb5 Nc3 bxc4 Nb1 c3 g4 f5 Na3 f3 Kf2 f4 Ke1 Nc6 Nb1 Nd4 Kf2 Be7 Ke1 Nf5 gxf5 Bf8 e4 Ke7 a3 Kf6 e5+ Kg5 f6 Kh4 f7 h5 e6 b5 e7 g5 e8Q c5 Qe6 b4 Qc6 g4 Be2 g3 Bc4 c2 Qg6 f2+ Ke2 f1B+ Ke1 f3 Qd3 Rh6 Qb3 Re6+ Qe2 Bg2 Qa4 Ra5 Qb3 Bg7 f8B Nh6 Bd5 c4 Nh3 c3 Bb7 Rae5 Rg1 Nf7 Nf4 Bh1 Ng2+ Kh3 Ne3 d5 Bb2 c1B Rf1 c2 Bd4 Bb2 Bc6 c1Q+ Qbd1 Qc5 d3 f2+ Kd2 Qc4 Bb6 Qd4 Nc3 Bf6 Re1 f1B Rc1 Bfg2 Qa4 Be4 Nf1 Bh7 Qa7 Bg8 Nb5 Bd7 Qd1 Kg2 Re2+ Kg1 Qe1 Bc8 Be7 Qf8 Qc7 Qg7 Bf8 Qh8 Qb7 Re7 Rc2 Bf5 Rc5 R7e6 Qc7 Nh6 Qh7 Nf7 Rc4 Qf2 Rg4 Qd4 Rg6 Ba1 Qd1 Bg5+ Kc2 Bf4 Rh6 Bc1 Qe1 Bcb2 Kd2
2rrq3/1Nq5/1B1p3p/1qn1q1p1/N3p1B1/q1R3R1/QP1P1kP1/QKR1n1b1 b - - 1 2 illegal: No proof kernel forced: bxDB
2r3b1/pKP1rN1b/1R1p1P1b/3RQ1pq/5p2/N1QBk1b1/P3qR2/B2bn3 b - - 0 1 illegal: No proof kernel
k1B5/p1Pb3Q/bp1pPpqB/qb2NPn1/3KQ3/b2n1R1B/2R2r2/6Nn b - - 0 1 legal: proof: d4 g5 b4 c5 h4 gxh4 a4 e5 a5 exd4 a6 Nc6 Bg5 Rb8 Bf4 b6 Bc1 Rb7 axb7 cxb4 Kd2 h5 Kd3 h3 b8Q h4 e4 h2 g4 b3 c4 b2 f4 h3 g5 f6 c5 Nh6 g6 Nf7 e5 Nb4+ Ke4 d3 c6 d2 e6 Ng5+ Kd4 Nd3 g7 Ba3 g8B Ba6 Qa4 d1B Qe5 Be2 Nd2 b1Q Qc2 d6 f5 Qb4+ Nc4 Qa5 Ra2 Qd7 Qg3 Kd8 c7+ Kc8 Bf7 Kb7 Be8 Ka8 Ne5 Qf7 Bd7 Qg6 Bc8 Rh4+ Qf4 Rg4 Qb3 Rg2 Rc2 Rf2 Qa4 Bb5 Qh4 Bd7 Qh7 Bb5 Ngf3 Bd7 Rg1 h1B Rg3 h2 Ng1 Bb7 Rf3 h1N Bh3 Ba6 Qb4 Nc5 Bd2 Beb5 Bc1 Nd3 Qc4 Ne4 Bh6 Ng5 Qb4 Ng3 Qe1 Nh1 Qe4+
2kbbqn1/bQ6/R3qpQp/1p1N3b/2Nn1P1K/2pP1R2/BRP5/3r1n1B b - - 1 2 legal: proof: e4 g5 b4 d5 b5 dxe4 b6 g4 f3 g3 Qe2 axb6 Qd1 b5 Bc4 b4 Be2 Na6 Bf1 Nb8 h4 b5 h5 Qd6 Bb2 Bh3 Bd4 Qd7 Bf2 gxf2+ Ke2 Qd8 g4 Ra6 g5 Rg6 hxg6 Bc8 a4 Kd7 a5 c5 f4 e5 g7 h6 a6 e3 Kf3 e4+ Kg4 f6 a7 c4 a8R e2 g6 e1B Nf3 b3 Kh5 e3 Nc3 e2 Na4 b2 Ra5 b1B Ra6 c3 Kh4 Be7 Rh3 Nc6 Ra2 Qf8 Rb2 Ba2 Bg2 Nd4 Bh1 Bf7 Ne5+ Kd8 Rf3 Bg4 Nb6 Be8 Qa1 Bh5 Nd5 Kc8 Nc4 Bd8 d3 f1N+ Kh3 Bd2 Kh4 Be3 Qa5 Bg1 Qb6 e1Q+ Rg3 Qc1 Rf3 Qe3 Qa7 Qe6 Qb6 Ne7 g8Q Rh7 Qa7 Rg7 Qh7 Ng8 Qb6 Re7 g7 Qc6 Qg6 Re1 Qa7 Qe6 Qb6 Ne7 g8B Rd1 Bf7 Ng8 Qa7 Ne2 Qe7 Ba7 Qd7+ Kb8 Qc6 Nd4 Qb6+ Kc8 Qb8+ Kd7 Qb7+ Bc7 Nb4 Qee7 Na5 Qe3 Bb3 Qe6 Ba2 Kd8 Nc4 Ba5 Qe7+ Kc8 Nd5 Bd8 Qb7+
K6Q/B2R1Qrp/4p3/5nqP/qP1P1pr1/2kQ2NN/1Rp1qr2/b1rb1B2 b - - 0 1 legal: proof: e4 d5 b4 dxe4 f4 g5 b5 gxf4 b6 axb6 Kf2 b5 Ke1 b4 c3 b5 Ke2 b3 Ba3 b4 Kf2 Nc6 Bc1 b2 Ke2 b3 Ke1 Nb4 cxb4 Qd4 Qf3 Qd3 Qd1 Qd8 Ke2 Kd7 h4 Kc6 a4 Kd5 g4 Kd4 a5 f5 g5 c5 d3 e3 Kf3 e2 h5 e1Q g6 c4 g7 c3 a6 c2 a7 Nh6 g8Q Bg7 Qf7 Rg8 Nd2 b1R Nh3 b2 Qd5+ Kc3 Qe2 e6 Qf2 Qg5 Ra2 Ba6 Qb5 Raf8 a8Q Rf7 Qd7 Be5 Qd6 Rg6 Qh8 Rfg7 Qa7 Ra1 Qf7 b1Q Rb2 Qa2 Qd5 Qb3 Qb5 Qa4 Ne4+ Kd4 Ng3 Kc3 Be3 Rc1 Ba7 Qd1+ Kf2 f3 Nf4 Bb7 Ke3 f2 Rg1 Bf3 Qbd7 Qg4 Nh3 Be2 Rg2 f4+ Ke4 Nf5 Qd5 Bc7 Qdd8 Bb6 Ke5 Qg5 Qd6 Be3 d4 Bd2 Qa6 Bf3 Qe2 Qe1 Qe4 Bd1 Rg1 Qe2 Rg2 Ne3+ Kd6 Nf5+ Kc7 Be1 Kb8 Bd2 Rg1 Be1 Bg2 f1R Ka8 Rf2 Bf1 Qd8+ Kb7 Rg4 Rg2 Qg5 Ka8 Kc4 Rg1 Bc3 Qd3+ Kd5 Qa6 Qh6 Qf6 R7g6 Rb3 Ba1 Qd3 Rh4 Nh1 Rg5 Qff8 Rg8 Rg7 Qg5 Rb2 Rg4 Rc7 Rg6 Qf7 Rg7 Qb5+ Ke4 Rd7 Ke3 Qa6 Kd2 Ng3 Kc3 Qd3+
n7/2Bn1Kpk/3q3r/P2Bp1P1/2pNp1Q1/2Pqr1N1/RR5Q/1qrb1Br1 b - - 0 2 legal: proof: f4 a5 g4 h5 b4 axb4 e4 e6 e5 Be7 g5 d6 f5 dxe5 f6 e4 fxe7 Kd7 Qg4 hxg4 Ke2 Ke8 Ke3 b5 Kf4 f5 Ke5 Kf7 d4 Kg6 e8B+ Kh7 a4 c5 h4 g3 h5 b3 c3 g2 a5 b4 h6 b2 d5 c4 d6 b3 d7 Nf6 Be2 Na6 Bf7 Nc7 Nf3 g1R Nbd2 b1Q Bf1 b2 Ra2 Qd3 Rh2 b1Q Nd4 f4 Ba3 f3 Bd6 f2 Rb2 Qf8 d8Q Ra6 Qd7 Na8 Bc7 Qd8 Ra2 Rb6 Rg2 Rb2 Kd6 e5 Bd5 Rc2 Ke6 Rc1 Rb2 Re1 Kf7 Re3 Qg4 Qd6 N2f3 Bd7 Nh4 Ba4 Nhf5 Nd7 Ng3 Bb3 Be2 f1R+ Rf2 Rc1 Bf1 Rb8 Ra2 Rb6 Rfb2 Ra6 Ke8 Kg6 h7 Bd1 h8Q Rc6 Qh2 Rb6 Bh3 Kh7 Kf7 Qa3 Qhe2 Rh6 Bf1 Qd6 Qh2
2NR1q1n/K1B1r3/1NQ1B3/P1R1pq1N/n4rb1/r3Ppp1/p1rkPQ2/7n b - - 0 1 illegal: No proof kernel
2K2Bb1/pB1p1q2/Qr1q1n1p/2Q1R1r1/R3PR1r/P2k1q1P/1npN4/1q3N2 b - - 0 2 legal: proof: d4 b5 c4 e5 g4 exd4 b4 c5 Bg5 f5 Qc1 fxg4 Qd1 bxc4 Bc1 c3 Bg2 c4 Bf1 Bc5 bxc5 Qf6 Qc2 Qg5 Qd1 Qd8 e4 Kf7 Ke2 Ke6 f4 g5 c6 d3+ Ke3 d2 Kd4 c2 Kc5 g3 f5+ Ke5 f6 g2 c7 c3 a3 g4 f7 g3 f8Q Qe8 h3 Qf7 Qh6 Nc6 Bb2 c1Q Bc4 Bb7 c8R Nb4 Qa6 Nd3+ Kb5 Kd4 Qc2 d1Q Re8 Qe3 Nd2 Nf6 Re5 Bd5 Nf1 Qef3 Rb1 Rab8+ Ka5 Be6 Bd5 Rb6 Bb7 Qd2 Bc1 Nb2 Rh2 Qdd1 Bh6 Bc4 Qf2+ Kd3 Bf8 c2 Qc5 Qd2+ Qb4 Qh6 Qc5 Qhf4 Rg5 Qd6 Re5 h6 Rh1 Rg8 Rh2 Rg4 Rd1+ Kc3 Rd4 Rh4 Rh1 Qf2 Nf3 g1R N3d2 g2 Qd5 Bb3 Ra4 Qf3 Qc5+ Bc4 Rh2 Kd3 Qc7 Rh1 Qc5 g1Q Rg2 Rh2 Rg4 Rg2 Rf4 Rg5 Ba8 Qgf2 Qb7 Qe1 Qbc8 Qh7 Q8c6 Rb5+ Ka6 Bg8 Q6b6 Qa1 Kb7 Qb1 Kc8 Qf7 Bb7 Rb3 Qba5 Rb6 Qa6+
2q5/1bN1pQnb/2kP3K/7Q/p1r1PNR1/P5Bq/1bpB3p/1Rbrq2B b - - 0 2 legal: proof: e4 g5 c4 b5 e5 bxc4 e6 dxe6 Nf3 e5 Ng1 e4 h4 gxh4 f3 e3 Qc2 Na6 Qb3 Nc5 Qd1 Ne4 fxe4 Bg4 Qe2 Bf5 Qd1 Bc8 Ke2 Kd7 Kf3 f5 Kf4 a5 Kg5 h5 g4 c5 b4 e2 d4 e1Q d5 h3 d6 a4 a3 c3 b5 c2 b6 h4 b7 h2 b8B f4 Qf3 h3 Nd2 c4 Qg3 c3 Qf2 f3 Ne2 Nh6 Qh4 f2 Nf4 Bb7 Nb3 Bg7 Nd4 Qc8 Bg2 f1B Nde6 Nf5 Bd2 c1B Qh5 c2 Rb1 Kc6 Ba7 Bgb2 Rg1 h1Q Bf2 Ng7 Nc7 Bc4 Bg3 Bg8 Kg6 Bh7+ Kh6 Ra5 g5 Rc5 g6 Rc4 Bf3 Rf8 Bg2 Qh2 Bh1 Rf5 Rg2 Rd5 Rg1 Qhe2 Rg2 h2 Rg1 Qe3 Rg2 Ne8 g7 Rd3 g8Q Ng7 Qgf7 Rdd4 Bf2 Qeh3 Rg4 Rd5 Bg3 Rd3 Bb4 Rd1 Bd2
bn2rq2/Qp2p3/N2R1rnp/R3r3/4P3/nqrPN3/1P2BQKp/1kB1Q3 b - - 0 2 illegal: Other
1B1qn3/pb2PNR1/1R1pB2N/pK4P1/5n2/2kPp1Q1/n5R1/b1nqQr1q b - - 0 1 illegal: No proof kernel
K2R4/1Q3n1r/k4b2/q1pp1RP1/3ppnNq/Pq3n1N/Q1P2R2/1Bq2bB1 b - - 0 1 illegal: No proof kernel
N2b1Q2/kQ1P2q1/1p1pB3/bq5r/q1P5/NP2Kpq1/3Bn1p1/2RbnRQ1 b - - 0 1 illegal: No proof kernel
1b1N2Q1/4p1rP/rp2B3/2Rqk3/q3q2p/N1K2pPr/2n1PRnB/1BQ3q1 b - - 0 1 illegal: No proof kernel
n4B2/2p1BR2/bb2Qp1b/1pN1pnk1/n1R1PP2/Q2Kbrb1/3PN1r1/6Q1 b - - 0 2 illegal: No possible last move
B2K3N/1ppbpPRP/1Q5Q/1b1r1p1n/kr3N2/1qb5/5P1r/RQ2Brb1 b - - 0 1 illegal: No possible last move
3N4/NbR1RpnP/Q3p1n1/5PQP/p1r1k2B/2pBb2n/4r3/nK2Qnn1 b - - 0 1 illegal: No possible last move, all moves rejected
B5R1/1npP1p1b/1Q2Pp1k/pn2Qn1b/r2pN2r/b4Rq1/P2N4/2BKQ3 b - - 0 1 illegal: No proof kernel
5qNb/2n1QBpK/1p2r1P1/bPp3kp/1B2nRq1/3p4/RrRP3Q/3qN3 b - - 0 1 illegal: Other
3RR1B1/4p2p/rbP4B/1R2pn1N/1pq2krP/2Qp2NP/r3q3/QKb1n3 b - - 0 1 illegal: No possible last move
BBQ3bq/Qppr1PP1/2p4N/2R1K1R1/2r2n2/4R1Pk/3b1npp/4r1qN b - - 0 1 illegal: No proof kernel
QQq1qN2/p1p1p2p/1n2B1P1/pNkb2K1/7B/bR3P1b/2Pr4/nB1R3r b - - 0 1 legal: proof: e4 g5 h4 f5 hxg5 fxe4 a4 b6 a5 bxa5 d3 exd3 Kd2 d5 Ke3 Kd7 Kf4 Kd6 b4 d4 g4 d2 f3 d3 b5 Nf6 g6 Rg8 g5 Na6 g7 Qe8 b6 Bh3 b7 Rd8 b8Q Nc5 Nc3 Nfd7 Ra3 Nb6 Nge2 Nb3 Nb5+ Kc5 Ned4 Na1 Rb3 Rd7 Qe1 d1B Qe4 d2 Bc4 Be2 Qea8 d1Q Be6 Bc4 g6 Bd5 Be3 Qg1 Bf2 Qg4+ Ke5 Rh8 g8B Bh6 Rd1 Bc1 Bh4 Ba3 Bgf7 Rf8 Bg8 Rf4 Bgf7 Qg2 Bg8 Rg4 Kf5 Qe2 Bgf7 Rg1+ Kf4 Re1 Kg5 Qc4 Nc6 Qc8 Ne5 Qa4 Bg8 Rd8 Bgf7 Rh1 Nd7+ Kc4 Nf8 Kc5 Nd6 Qe8 Nb5 Bc6 Rb2 Rd3 Ba2 Rd6 Bb1 Rd2 Be6 Bd5 Rb3
q2B3n/1NbQ2b1/Pp3r1k/1BR1p2p/p5Pb/P3R2p/5nr1/2BQ1KbN b - - 0 1 legal: proof: e4 f5 b4 fxe4 c4 d5 h4 dxc4 b5 g5 Ba3 gxh4 Bc1 a5 Bb2 b6 Bc1 Ba6 bxa6 Qd6 Bb2 Qd4 Bc1 Qd8 f4 Kf7 d4 Kg7 g4 c5 f5 a4 d5 c3 d6 c4 d7 e3 a3 h3 f6+ Kh6 f7 c2 Qd5 c3 Qf3 Nc6 Bd2 c1B Ne2 c2 Qf5 Bg7 f8B Nb4 Nd4 Nd3+ Ke2 Nf2 Nb3 e6 Nc3 Ne7 Rg1 Ng6 Be7 Rf8 Rg3 Rc8 Ne4 Rf6 Rb1 Nh8 Nbc5 Rc7 Nb7 Qa8 d8Q Bb2 Nc3 c1B Nd1 Be5 Rb5 Rc2 Rc5 Bc7 Qd4 e5 Qfd7 Ra2 Bd8 Bb2 Q4d5 Bd4 Ke1 Rc2 Bc1 Rd2 Bb5 e2 Re3 Rc2 Qe4 Ra2 Qc2 Rb2 Kd2 e1B+ Ke2 Ne4 Nc3 Kg6 Rf3 h5 Nd1 Bg1 Re3 Bh4 Nf2 Kh6 Kf1 Ra2 Qcd1 Rd2 Qf3 Ra2 Nh1 Rg2 Be7 Nf2 Bd8 Rf8 Qe2 Rf6 Qed1
rr1n3K/4n2p/rkp1q3/1B2R2b/B2BP3/PpPRpp2/b3r3/1Q2NQN1 b - - 0 1 illegal: No extended proof kernel
1Qrnq2b/2Q1Qnp1/2rBB3/3bb3/p3R1p1/1p5P/RPN1PNp1/b1K1k3 b - - 0 1 illegal: Other
1N2n3/2r1p3/1R1rB1Pp/3b2N1/1Q1N3n/KpQ2p1P/nBpqPn2/3Rbk2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 gxf4 b4 a5 a3 axb4 Qc2 bxa3 Qb3 Ra5 Qd1 Ra8 d4 Kd7 Kd2 Kd6 Kc3 b5 Kb4 f5 g4 c5+ Kb3 c4+ Kb4 f3 h3 f4 g5 h6 g6 c3 Bg2 a2 Qd2 c2 Na3 f2 Qd3 f1N Qd1 Nd7 Be3 Nd2 Qc1 Ne5 Rh2 Bb7 Qb1 Ra6 Bh1 Ng4 Bf2 Bg7 Nf3 N8f6 Ng5 Ne8 Qe1 Bc6 Rd1 Nf3 Qc3 a1N Bg3 Nh4 Rf2 Be5 Be4 Bf6 Bf5 Nb3 Be6 Nc1 Rff1 Nf2 Rg1 Kc7 d6+ Kb6 d7 f3 d5 Na2+ Kb3 b4 d6 Be4 Nb5 Bd5+ Kb2 Ra7 Nd4 Rc7 Be5 b3 Ka3 Bg7 Rg4 Rf8 Rf4 Rf6 Rg4 Qc8 d8N Qd7 N8c6 Qd8 Qd2 Kc5 d7 Kc4 Qf4 Kc3 Nb8 Bh8 Bg8 Rd6 Be6 Qc8 d8Q Qd7 Qc8 Bf6 Nf7 Bg5 Qe4 Bd2 Ng5 Be1 Rf4 Qd8 Rf6 Qd7 Ra1 Kd2 Qg4 Ke3 Rd1 Nd3 Qf4+ Kf2 Qd2 Kf1 Qb4 Rb7 Qcc3 Rc7 Bf4 Nf2 Bc1 Qb5 Bb2 Qd3 Rf5 Qd2 Re5 Bc4 Rb5 Bd5 Rb6
rb1Nb3/1PQpR3/1Kn1prp1/pNPQ1k2/4p3/P1b2BRn/1b2B3/5N1q b - - 0 1 legal: proof: e4 b5 g4 f5 c4 fxe4 g5 b4 g6 hxg6 d3 g5 Bd2 c5 d4 g4 Bc3 bxc3 dxc5 Qa5 Qb3 Qb6 Qd1 Qd8 Ke2 Kf7 Ke3 Kg6 Kd4 a5 f4 g3 h4 e6 b4 c2 a3 c1B f5+ Kf6 b5 g2 h5 Bf4 h6 B4d6 h7 Nh6 c6 Bc7 b6 Bh2 c7 Ng8 Nf3 Be7 Be2 Bf4 Nfd2 Bg5 Bf3 Bb7 c8B Ba6 Nf1 Bd6 Nc3 Bc1 Nb5 Nh6 c5 g1B+ Kc4 Qg8 Qd5 Nc6 Bb7 Kg5 f6+ Kg6 f7 Bb2 f8Q Bb8 Qd8 Nf7 Bc8 Ng5 Qc7 Nh3 Rd1 Qf7 Rd3 Rf8 h8N+ Kf6 Rb3 Qh5 Nf7 Bgd4 Nd8 Bdc3 Rg1 Qh6 Rg5 Qh8 Rf5+ Kg6 Rf7 Qh5 Re7 Rf6 Bd1 Qf3 Bb7 Qh1 Bg4 Be5 Rg3 Kg5 Bf3+ Kf5 Kb3 Bc3 Ka4 Bb2 Na7 Bd3 Nb5 Be2 Ba6 Bc3 b7 Bb2 Bg2 Bh5 Bf3 Be8 Nd4+ Kf4 Kb5 g6 Kb6 Bc3 Nb5 Kf5 Na7 Bb2 Bae2 Bc3 Nb5 Bb2 Qc4 Bec3 Qd5+
1r6/1pkNbp1n/BN2r2Q/3Qnp2/1R3B2/nq1P1PK1/4ppP1/b1n2R1N b - - 0 1 illegal: No proof kernel
1BrB2bn/pR6/2P1qb2/1r2pNpN/p1k1n1N1/R2b4/P2pP1Q1/3Kb2Q b - - 0 1 legal: proof: h4 c5 d4 cxd4 h5 g5 g4 b5 Bg2 Qc7 Bd5 Qb6 Bb3 f5 Ba4 Qg6 hxg6 fxg4 Qd2 bxa4 Qd3 Na6 Qd1 Nb8 b4 e5 c4 Ke7 f4 Kd6 g7 h5 c5+ Kd5 b5 h4 f5 h3 c6 h2 b6 g3 f6 g2 f7 d3 b7 d2+ Kf2 Na6 b8Q Nc5 Qb5 Rb8 Ba3 Ne7 g8N Ba6 Nf3 Ng6 Nd4 Bg7 f8B Bf6 Nf5 g1B+ Kf1 d6 Be7 Bf2 Ngh6 Be1 Ng4 Rhc8 Bd8 Nh8 Qbb3+ Bc4 Qh3 Rb5 Qg2+ Ne4 Bc5 Bd3 Nc3+ Kc4 Rb1 d5 Bd6 d4 Bb8 Ng6 Nd5 Nh8 Rg1 h1Q Nf4 Qh6 Nh5 Qg6 Rb2 Qe8 Qa1 d1B Rb3 Qd7 Ra3 Bb3 Qb1 Kc5 Rh1 Bg8 Rh3 Qe6 Rb3 Ra5 Rb7 Kc4 Rg3 Bc2 Ra3 d3 Qb6 Rd5 Qbg1 Rb5 Q1h1 Bh4 Nf2 Bb1 Ke1 d2+ Kd1 Bd3 Ng4 Bf2 Ngh6 Be1 Ng4
1qk2Nq1/2Qpp3/1r1P2bb/r3P2R/p3p3/KR1q1P1p/1B1nBN2/2bQ1B2 b - - 1 2 legal: proof: b4 g5 e4 f5 c4 b5 a4 bxa4 h4 gxh4 b5 Bh6 e5 Nf6 Qg4 Bf8 Qf3 Nc6 Qe4 Nd4 b6 Nb5 cxb5 fxe4 Kd1 Ng8 Ke2 Ba6 Ke1 Bc8 Kd1 c5 Kc2 a5 Kb2 h5 d4 a3+ Kb3 c4+ Ka4 a2 g4 c3 d5 c2 g5 h3 d6 h4 g6 h2 f3 Ba6 g7 Qb8 b7 Kd8 b6 Nf6 g8B Nh5 Ka3 a4 Bgc4 Ng3 Ne2 Bh6 Bb2 c1B Nbc3 Ra7 Bd3 Bc4 Rb1 Ra5 Nd4 Bf7 Bde2 Bg6 Nd1 Rg8 Nf2 a1Q+ Kb4 Qa2 Ne6+ Ke8 Nf8 Kd8 Bh3 Qe6 Ka3 Nf1 Bg2 Nd2 Bgf1 Qc8 b8Q h3 b7 Qg4 Rg1 h1Q Qa7 Qb8 Rg2 Qe6 Rg5 Qg1 Qd4 Qd5 Rh5 Qg4 Qd3 Qge6 Qb3 Rh8 Qc2 Qg8 Qd1 Qd3+ Qb3 Qc7 b8Q+ Qc8 Qa7 Qc7 Kb4 Kc8 Qd1 Qd8 Bc3 Qe8 Rb3 Qd8 Bb2 Qc7 Nh1 Qb8+ Ka3 Qbb5 Qa6+ Kb8 Nf2 Qgc4 Nh7 Rc8 Ng5 Qg8 Ne6 Rc6 Qb6+ Kc8 Qa7 Qb8 Nf8 Rb6 Qc7+
K1b2n1k/2N2Q1B/1R1p1bpP/R1nPp1Q1/1p2Nqq1/P5np/q1r2B2/1Q6 b - - 0 1 illegal: No proof kernel
n1k2qq1/1pbn1B2/1rp5/PP1pN2P/qB2p1pR/2RQb1B1/2b1Q3/4KN2 b - - 0 1 illegal: No proof kernel
6qN/QKp1r2p/1NPp3B/pkr2N1n/r1Rb3P/5Bp1/Q4P1q/Rn2q3 b - - 0 2 legal: proof: e4 e5 a4 b5 d4 exd4 e5 bxa4 Qh5 Bb7 Qd1 Bf3 gxf3 f6 f4 fxe5 f5 e4 Ke2 g5 h4 d3+ Ke3 a3 Kd4 a2 Kd5 d6 c4 Kd7 b4 d2 b5 e3 c5 e2 b6 e1Q f6 g4 f7 g3 b7 Na6 b8Q Bg7 Qb6 Bd4 Qc2 d1R Bh6 Rc1 Nc3 Qde8 Na4 Nf6+ Kc4 Qg8 Kb5 Re8 Bg2 Re7 Bf3 Nb4 Ne2 Nbd5 Ka6 Nc3 Kb7 Nh5 Rf1 a5 Qa7 Nb1 Rh1 Qg1 Qb2 Qh2 f8N+ Ke8 Ng6 Kd7 Rd1 Rc3 Rc1 Rc4 Nac3 Ra4 Nd5 Re5 Rc4 Rg5 Ka6 Kc6 Qc2 Qb8 Qb3 Re8 Nh8 Re7 Nb6+ Rd5 Nc3 Qf8 Nd1 Qg8 Ne3 Na3 Rf1 a1Q Nf5 Nb1 Qa2 Qc3 Rd1 Qe1 Rdc1 Nc3 Ra1 Nb1 Qb8 Be3 Ka7 Kb5 c6 Rc5 Kb7 Bd4 Qa7
q3NQ2/BpkpP1B1/1nP1n3/r3b1qp/RQN1K3/n5p1/3P1prR/3B1r2 b - - 0 1 illegal: No proof kernel forced: wxLB
2k2n2/2P5/Q4brR/2RQ2B1/BpKp1b2/pn1pp2n/2PP1r1R/1N2Nb1r b - - 0 1 illegal: No proof kernel
1r4r1/1npnKN2/1P2p1N1/B1nRP2B/1b1n1p1N/pP2p3/1q5Q/1nkQ2R1 b - - 0 1 illegal: No possible last move, all moves rejected
Q1k5/pnQN4/bq1pb1B1/P1B1rrp1/p4R1b/3Pp3/b2P4/2BNRK1b b - - 1 2 illegal: No possible last move
1QnN4/n3p1p1/bR3r2/p2n2b1/2BK1P2/QBQpp3/3PP1bR/1b3qNk b - - 0 2 illegal: Other
4N1b1/2pPpN1R/1B2Q2Q/R1PKpbp1/1b4n1/1kP3NB/r2n2p1/1n3b1q b - - 0 1 illegal: No proof kernel
3b1Qr1/npkprp2/3r4/2P1pP2/3q4/B1pQ1Brb/1RNP2N1/3KR1bN b - - 1 2 illegal: Other
1Q6/R1P1r3/1KNpRq1n/Np4n1/1P3BQ1/qPk3n1/Bbnpp2p/3r2N1 b - - 0 1 legal: proof: e4 c5 h4 f5 d4 cxd4 Nd2 fxe4 Nb1 b6 h5 Bb7 h6 Bd5 b4 Bb3 axb3 gxh6 Ra5 h5 Ra1 h4 Kd2 Kf7 f4 Kf6 c4 e5 g4 a5 f5 h5 c5 b5 c6 a4 c7 d6 Bg2 h3 Nc3 h4 Na2 a3 Nf3 e3+ Kd3 h2 Re1 h1N Bf1 e2 Bd2 h3 Nc1 a2 Ke4 h2 Kd5 d3 Be3 e4 Nd2 Na6 Kc6 Ke5 g5 Bg7 g6 Qf6 Kb6 Rh7 Bf4+ Kd4 Nc4 e3 Na5 d2 Bg2 Rf8 Be4 Kc3 Bb1 Bh8 g7 Nh6 g8N Ng3 Ne7 Nc5 Nec6 Re7 Bd3 Nce4 Bb1 Qh4 f6 Ng5 f7 Bf6 Rg1 e1N Qg4 Nc2 Rf1 Rg8 f8Q Rg6 Qb8 e2 Nd3 Bg7 Nf2 Rf6 Nh3 Rff7 Rg1 Be5 Be3 Rf1 Bf4 Rd1 Rf1 Qh5 Ng1 Qg6 Be3 Bh8 Rf6 Qg7 Re6 Qf6 Bf4 Ne1 Bf5 Nc2 Rb1 a1Q Rb2 Nhf7 Ra2 Nh6 Ra4 Qa3 Be4 Nd4 Bb1 Nc2 Ba2 Qg7 Re5 Kd3 Re6 Qf8 Nc4 Bb2 Ra6 Qf6 Ra7 Kc3 N4a5
1qN3KR/qp1n1pp1/P1Qb1q2/Nnp1qrPB/P1N5/7r/3Qp3/1kR1B3 b - - 0 1 illegal: No proof kernel
8/K2Q1nPp/1N1B1p1N/P1pB1R1q/2Rn2B1/b1q1prQP/3rrp1r/2k5 b - - 0 1 illegal: No proof kernel
3RQ3/B7/nbnNbknp/4B2p/1pP2N1r/nP5p/5RpP/1bQK1Q1r b - - 0 2 illegal: Other
1R2n3/K1np1Npb/NprB2Qr/3Pp3/3P1p2/4Q1Pk/1b1pQr2/2qR3B b - - 0 1 illegal: No proof kernel
K5n1/Q1pp4/1bp1R2p/1p3q1r/RBNp4/bP2N2P/1PN2krQ/3qBn2 b - - 0 1 illegal: No proof kernel
N6K/pbp4R/Pn5b/n5p1/rP2QB2/2QrpRPp/Bp3p2/qN1k2N1 b - - 0 1 illegal: No proof kernel
3Rnn2/8/N1Bp1Q1K/3p1Np1/3q1pPN/3Pp1Rp/1Bpr1Pp1/2bbQk2 b - - 2 3 illegal: Other
nR3R1r/3p4/prnqr3/P2P3n/B1PkbQQb/2Bq2N1/2q2r2/R3K1Nb b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 b5 gxh4 b6 cxb6 Ba3 b5 Bc1 b4 c4 Ke7 g4 Ke6 a4 Ke5 e4 f5 d3 b5 g5 h5 g6 a6 g7 f3 a5 h3 Nd2 f4 Nb3 h4 Ra2 h2 Rf2 h3 Rb2 f2+ Ke2 f3+ Kd2 Nc6 Qe1 Bb7 Rb1 Qf6 Be2 f1R Rb2 f2 Rb1 Re8 Bd1 Qd6 Nc5 b3 Bf3 b4 Ke2 b2 Bg2 b3 Bf4+ Kd4 e5 Be7 e6 Nf6 g8Q Nd5 Bc1 Nb6 Qd1 Na8 Qf7 Bh4 Bd2 Re7 Ra1 b1Q Ne4 b2 Ng3 Qc2 Qf3 Ree8 e7 b1R Qf5 Rb6 Qf4+ Kc5 Be4 Kd4 Rb1 Rh6 Rb5 Reh8 e8R Re6 Rb8 Ne5 Bf5+ Be4 Bh7 Nc6 Rf5 Qc1 Rff8 Qc2 Nf3+ Kc5 Rg1 h1B Bf5 h2 Bg6 Qc1 Bc3 Qc2+ Qfd2 Qc1 Bh5 Qb2 Nf5 Bg2 Rh1 Qb1 Qf4 Qb3 Rg1 h1N Kd2 Ng3 Bg4 Nh5 Ng3 Nb4 Ke2 Bh1 d4+ Kc6 d5+ Kc5 Kd2 Nc6 Qe2 Rc1 Re1 f1Q Ng1 Rc2+ Kd1 Qa2 Qef3 Rf2 Bf5 Bb1 Bc2 Qb2 Ba4 Be4 Q3g4 Qd3+ Bd2 Kd4 Rf1 Rf3 Re1 Qbc3 Rf1 Qdc2+ Ke2 Qca3 Ra1 Rf2+ Ke1 Qad3 Bc3+
1r3BQq/Kb1nNPq1/2rp2Bb/pb1QR1R1/Pq1P4/b3N3/5Q2/nr3n1k b - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 g5 c5 gxh4 c6 bxc6 Na3 c5 Nb1 c4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 g4 a5 a4 e5+ Kb5 h5 b4 c5 d4+ e3 f3 Kg3 g5 c3 g6 e4 g7 e2 f4 e1Q f5 e3 f6 d6 f7 h3 Ba3 h4 Bc1 c2 Na3 h2 Bd2 c1R Qh5 e2 Qh6 h3 Qe6 c4 Nc2 c3 Qd5 Qg5 Kb6 Ba6 b5 Nd7+ Kc6 Rb1 b6 Nh6 g8Q Ng4 b7 Ne3 b8Q Bh6 Qb6 Bb5+ Kb7 Rc8 Qe6 Rc6 Qbd8 Qg7 Qd5 Kf2 Bg2 Nf1 Ne3 c2 Be4 c1B Nf3 Ba3 Rg1 h1B Bg6 h2 Ne5 Be4 Rg5 h1Q Bc1 Qb4 Ka7 e1N Qf6+ Bf3 Qf4 Nc2 Qh2+ Bg2 Qg3+ Kg1 Qf2+ Kh2 Ra2 Na1 Re2 Qg1 Re1 Kh1 Bd2 Qh2 Re2 Rb6 Nc6 Qh4 Ne7 Rc6 Ng4 Qh3 Ree5 Qh5 Ne3 Qh4 Qh7 Rb8 Qg8 Bf3 Rgf5 Qhf6 Rg5 Qh8 Bc1 Qfg7 Rg3 Bf4 N3f5 Rc2 Qc5 Qf8 Rg2 Bb7 Qd5 Bg5 Bf4 Rc6 Ne3 Bh4 Bh6 Bg5 Qh7 Qfg8 Bf8+ Bh6 Qg7 Qgh7 Qg8 Q7g7 Rgg5#
nr2kB2/1n3nq1/1N1pR1bp/R3bB2/2b2nPP/2rP2r1/r1N2N2/2Qn1Q1K b - - 0 1 illegal: No proof kernel
2n1K1b1/3Nb3/1p2pBn1/2r2k2/Q1rbPnq1/bQbBb2R/PP1Q3N/1q5R b - - 0 1 illegal: No possible last move
rB4n1/p2P2b1/P5qN/krbK2Nb/3p3Q/N1Q1r2r/R2P1q2/nb1RbB2 b - - 0 1 illegal: Other
KBb5/P3pbn1/1pN1qr1B/qn5q/Q1Q4r/1P1RP3/1b3kRq/1BN1bb2 b - - 0 1 illegal: No proof kernel
RN1r3n/1k1b1R2/5b1p/5Qn1/nNK1bq2/1pN1bB1P/1Pr1Q1P1/n1r1r1B1 b - - 0 1 illegal: No proof kernel
n3K1R1/3Pb1B1/1nNR1rpn/Np1r2n1/NP3rk1/6P1/2qp1n2/Qbb2Q1B b - - 0 1 illegal: No proof kernel
4bBK1/1Nq3n1/b3Q1Rp/3PpBn1/n1NNp2r/b7/b1krPr1P/2b1QR2 b - - 0 1 illegal: No proof kernel
3nrb1B/qN3p1b/b3p3/1n2PP1k/1Q2p3/3b1R2/1qBP1brN/NQ1K1Rn1 b - - 0 1 illegal: No proof kernel
1r1q1n2/2B1kb2/2n1N1br/p2PRBqQ/bb1p4/P1QP4/NKNp4/3R1b1r b - - 0 1 illegal: Other
4Qnqk/PNK4b/3NB1qn/n3ppR1/rpbRRPb1/BQ3br1/4P3/b7 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 a5 h5 axb4 h6 gxh6 Be3 h5 Bc1 h4 Kd2 b5 Kd3 d5 a4 h5 f4 h3 c4 h2 g4 h4 g5 h3 g6 b3 a5 b2 g7 b4 c5 Nd7 c6 Nh6 c7 Rg8 Na3 b1Q+ Kd2 d3 Ke3 d2 Kd4 Qg6 Qc2 d1N a6 Nb2 Rb1 Nc4 Nb5 Na5 Ke3 d4+ Kf3 e5 Rb3 d3 Ba3 d2 Re3 d1B Re4 Bc5 Qb3 Bc2 Nd6+ Ke7 Nb7 Kf6 Bg2 Nf8 Bf1 Bf5 c8Q Bd4 Qd7 Bd3 Qe8 Ba1 Ke3 Qb8 Nf3 Bc4 Nh4 Bg4 Nf5 Ra7 Rg1 h1B Nfd6 h2 Bh3 Bhf3 Rd1 h1B Rd3 Bh5 Be6 Bhg4 Red4 Be4 Rd1 Bef5 Re4 Bhf3 Rd5 Qg5 Rd3 Bh7 Rd1 Qg6 Rdd4 Rh8 g8R Ra8 Rg7 Rg8 Qea4 Qf5 Rg5 Qg6 Qb5 Kg7 Qe8 Kh8 Qd1 Ba2 Qb3 f5 Kd3 Nc6 Kc4 Na5+ Kc5 Ra7 Qb2 Bc4 Kb6 Qa8 Kc7 Rg7+ Qf7 Qe8 Qe7 Qef7 Qb1 Qg8 Qb3 Qe8 Qd7 Bh5 Nc8 Nc6 Rg3 Ra8 Rh3 Rg3 Ncd6 Bhg4 Rh5 Qeg6 Qe8 Rb8 Nc5 Rb6 a7 Ra6 Ncb7 Ra4 Rg5 Na5 Kc8 Q8g7 Kd8 Qg8 Kc7
NKNnBkbn/3p4/R1PBr1b1/3Q4/4pn2/b1QPPp1R/1b2qqbQ/2r5 b - - 0 1 illegal: No proof kernel
5B1n/1r1NRB1n/2pqb1n1/1r1BP1k1/R2Q1p2/2Pp2q1/1n3PbN/KQbn4 b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 b5 gxh4 b6 axb6 Ba3 b5 Bc1 b4 Kd2 Ke7 g4 Kf6 e4 b5 a4 h5 e5+ Kg5 a5 d5 c3 f5 Kc2+ f4 Kb2 d3 a6 c6 a7 h3 Ra4 d2 Bd3 h2 Bh7 b3 Be4 b4 Qf3 d1N+ Ka1 b2+ Ka2 h4 Bd2 h3 Bf5 d4 Qe3 d3 Bd7 Nh6 Bf5 Nd7 Qd4 Rh7 Ra5 Nf7 Be4 Nh8 Qe3 Nf6 Bc1 Be6+ Bd5 Qd6 Qe4 Rb8 a8Q Rb5 Qc8 Rhb7 Qd7 Nh7 Na3 b1N Ka1 b3 Qd4 Nd2 Nc4 Nf3 Nb6 Nh4 Ra4 N4g6 Ba3 Be7 Qe8 Bf8 Nd7 b2+ Ka2 b1N Qb8 Nd2 Ka1 Nc4 Nf3+ Kh6 Bb4 Ncb2 g5+ Kh5 Rg1 h1Q Nh2 Qf3 Rg2 Qg3 Ba3 Ne7 g6 Kg5 g7 Neg6 g8B Be7 Bf7 Bf8 Nf1 h2 Bb4 h1B Nh2 Qc7 Rg1 Bg2 Ba3 Bc5 Rh1 Bb6 Bf8 Qd8 Qd6 Qe7 Q6b4 Qd6 Rg1 Nc4 Qb1 Ncb2 Ra8 Ba7 Re8 Bc5 Re7 Ba3 Re1 Nc4 Re2 Bc1 Ra2 Ncb2 Ra4
1nN2k1B/p3b3/P1b3K1/nPq2Q2/4B1pq/r2qRNPq/1p1R2N1/1rb1rQ2 b - - 0 1 illegal: No proof kernel
3KQq1b/pr1B1q2/1BR4p/P1p1q1r1/1PPR3R/q1b2Nk1/N3n1Q1/1b2rn2 b - - 0 1 illegal: No proof kernel
1Qq2RB1/B1q1bQ2/R3rn2/1N2p1k1/p4np1/P1P1B1b1/rbq1P3/3b1KNn b - - 0 1 illegal: No proof kernel
3rNnnr/Q1b1q2N/2Bp1pr1/1b6/pn2QPkB/1QRP1b2/2nq1P1R/5K2 b - - 0 1 illegal: Other
3QB1rB/R5p1/nKNN3p/nbQ1q3/pNq5/Pq4kr/3P3P/1Rr1br1n b - - 0 1 illegal: Other
n2q1r2/b1r1N2p/Knnp1pN1/1RrbB1P1/RQBPq3/R6P/7q/4Qk1q b - - 0 1 illegal: No possible last move
1qb1Q2k/2r1pn2/1pb1P3/NRRnbB1B/Kb2Np1Q/5Rq1/1Pn2Pq1/6r1 b - - 1 3 illegal: No proof kernel
1k2q3/p2pp1n1/R1n2bB1/1bbr2B1/n3R1q1/1N2P2N/P1b2rPK/QB2qQ2 b - - 0 1 illegal: No proof kernel
B2B1Rq1/r2pn3/1RbP3r/p4N2/1n3Knp/NP1B2n1/1nQn1kqP/1Q2b3 b - - 0 1 illegal: No proof kernel
K1R2r2/PN1pN2p/1r3bQB/2brb3/1r1k1QBn/R1pPq2b/R1Pr4/2n5 b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 h5 axb4 h6 gxh6 Be2 h5 Bf1 h4 Ke2 Kf7 Ke3 Ke6 Kd4 b5 Kc5 Ke5 g4 b3 a4 b4 f3 b2 d3 h3 a5 h2 g5 b3 g6 e3 a6 e2 g7 e1B Bd2 Nc6 Be2 Qe8 Nh3 Bb7 Ra2 Bh4 Ra1 Nd4 Ra2 Nh6 g8R Bf6 Ra3 Nhf5 Ra5 Nh4 Na3 b1R Bf1 b2 Bb4 Ne2 Bd2 Nc1 Bh6 c6 Kb6+ c5 f4+ Kd4 f5 e5 Qd2 e4 Qf4 c4 Be2 c3 Nc4 Bc5+ Kc7 Qe7 Rc8 Rf8 Nd6 Bc6 Re1 h1R Ra2 Rh2 Bg4 Rd2 Nb7 Qe6 Qg3 e3 Nf4 e2 Ng6 Bg2 Ne7 Qe3 a7 Bh3 Rf1 e1B Qg1 Rb8 Rf4+ Ke5 Rfa4 Bg3 R4a3 Ra1 Qg2 b1R Qc6 Rb4 Qa6 Bg5 f6 Rb6 f7 Bf6 Ra4 Rab1 R4a3 Rd6 Qc6 Kd4 Qg2 Bge5 Qg1 Rg8 f8Q Rb4 Qf7 Rf8 Qf2 Bg3 Qg6 Rd5+ Qf4+ Qe4 Nd6 R8b6 Nb7 Bh2 Kb8 Bg3 Qc7 Qe3 Ka8 Bge5 Qd6 Bh8 Qdf6 Bg7 Qfg5 Bgf6 Qf4+
BR4qk/2KN2Rp/3nQ2b/Prbrp2b/3Br1pP/3Nn1Q1/5nPB/2rn4 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 Ke2 Kf7 h4 d5 a4 e5 c4 g5 f4 Kg7 c5 b5 f5 b3 c6 e3 Kf3 d3 c7 e2 Qc2 e1B Qe2 d4 Ke4 d2 Qe3 d1N Qd2 d3 Qc3 b2 Ra2 b4 Be2 d2 Bg4 b3 Nh3 Bc5 Nf2 Nd7 Kd5 Nb6+ Kc6 Nd5 Qg3 Ngf6 Nc3 b1R Nd3 b2 Bf3 Nf2 Ne4 d1N Bf4 Ne8 Nf6 Bd2 Nd7 N5e3 f6+ Kg8 Rf1 Nd6 f7+ Kg7 Ra1 Rc1 Rb1 Qg8 a5 Rb8 Be4 Rb4 Bd5 Ba6 c8Q Re4 Kc7 g4 Ba8 Bc4 Qe8 Be6 Qc8 Bf5 Qa6 Bg6 Qc4 Bh5 f8B+ Kg6 Be7 Kg7 Qa2 Qe8 Qe6 Qg8 Ra1 b1R Ra4 Rb3 Rb4 Rb2 Rb8 Rb5 Bd8 Qf7 Bdg5 Rd8 Be7 Qg8 Beg5 Nc2 Be3 Kh8 Bd4 Nce3 Bh6 Nh1 Rf7 Nhf2 Rg7 Nb7 Nf6 Rd5 Bf4 Nd6 Nd7 Nf1 Qf3 Be3 Bg3 Bh6 Bh2 Nfe3 Qg3
Rnn5/Nb2NQBp/PqBN1rn1/6p1/2bb1pbP/4n2R/r4PQK/r1k5 b - - 0 1 illegal: No proof kernel
1Rrnb2Q/1n1n3p/P3r2N/1R2qpp1/Q2bRPq1/1BBn2N1/4b1PK/k1b5 b - - 0 1 illegal: No possible last move
BQ6/bp2Qpk1/1b1N4/1NB2bp1/Kn2nN1R/Pn1r3R/2qrqPPb/6n1 b - - 0 1 illegal: Other
RK3bBn/PQr2r2/k7/1pQ1B3/N1n2pNp/7P/pB1n1PqR/3bbrq1 b - - 0 1 illegal: No proof kernel
Q2K3N/R3p3/1Q2b1qp/2p1pRrP/P2n1r1b/q1PbnB2/3Q2q1/1kN2rB1 b - - 0 1 legal: proof: e4 f5 b4 a5 g4 axb4 e5 fxg4 Bd3 d6 Bf1 dxe5 Ke2 Kf7 Ke3 Kg6 Ke4 c5 f4 b5 a4 g3 d4 h6 h4 b3 d5 b4 d6 b2 Kd5 Kf5 h5 g5 d7 b3 Qe2 g2 Qd1 g4 Rh4 g3 Bc4 Bg7 Ra2 Bf6 Ne2 g1R Be3 g2 Qd2 Rf1 Na3 b1B Rb2 g1Q Nc1 Nc6 Be2 Nd4 Nc4 Qg2+ Bf3 Ra6 Rh1 Bh4 Bg1 Rf6 c3 Qa5 d8Q Qb4 Qa5 Qa3 Qb6 Bd3 Rb1 b2 Rh2 Ne6 Kc6 Nd4+ Kc7 Be6 Kd8 Rh7 Rh3 Rg7 Rh1 Rff7 Rh2 Nf6 Rh3 Nd5 Nd6+ Kf6 f5 Ne3 Rh2 Kg5 f6 Kf4 Rh1 Rg5 Rh2 Rfg7 f7 Rf5 f8Q Rg5 Nf7 Rf6 Be2 Ke4 Nh8 R6f4 Rh3 Bg8 Rf3 Be6 Ra1 b1Q Bd1 Qc2 Rb1 Kd5 Rb5 Kc4 Ra5 Qb1 Qc7 Qb6 Ra7 Qc6 Rf2 Qce4 Bf3 Qg6 Ne2 Kb3 Qb6+ Qb4 Qe8 Ka3 Qg8 Qb2 Qe8 Ka2 Nc1+ Kb1 Qec6 Bb3 Qa8 Qa3 Bd1 Rfg4 Rf5 Rgf4 Qe6 Bd5 Bf3 B5c4 Qd6 Be6 Qb6+
krQq1b2/Q3N2R/4pp2/qRrRn3/pp1rPb1K/n5P1/BBN2P2/3b3n b - - 0 1 illegal: No proof kernel
4b1NB/1Bpqqkrp/1R2R3/NRP2n2/p3rr1n/p2P2Q1/K1n4P/2bQ1b2 b - - 0 1 legal: proof: e4 d5 a4 dxe4 f4 g5 a5 gxf4 a6 bxa6 Ra2 a5 Ra1 a4 c4 a5 g4 e5 b4 f5 d3 f3 Kd2 e3+ Kc2 a3 Kb3 a4+ Ka2 f2 g5 f4 b5 f3 g6 e4 c5 e2 b6 e1N b7 e3 g7 e2 Bd2 Bd7 Be3 Nh6 g8Q Nc2 Bg2 f1R Qe1 f2 Nf3 Nf5 Nd4 Nh4 Qg3 Rg8 Nc3 Kf7 Nd5 Rg7 Nc6 Be8 Bd4 Qd7 Na5 Nc6 b8R Ne7 Rab1 Nef5 Qd1 e1Q R8b6 Qee7 Nf6 Rb8 Re6 Rb4 Bb7 Re1 Rg1 f1B Ng8 Re4 Rb6 Rc4 R1b5 Rf4 Bb2 Rce4 Rh1 Rgg4 Bf6 Bh6 Bh8 Rg7 Re6 Rf2 Rg1 Bc1 Rg2 Rf3 Re2 Rff4 Reb6 Rb4 Re5 Rbe4 Ree6
bB2N1kN/1QnpBp1p/3b2PR/npnrr1r1/8/1R5K/BP1q3P/1b1Q2q1 b - - 0 1 illegal: Other
3bn1K1/2n1rp1Q/Pq1rr2B/k1p1pP2/3nRRbn/2RQ2pB/2N1P2N/3n4 b - - 0 1 legal: proof: c4 d5 b4 dxc4 g4 h5 b5 hxg4 b6 axb6 Na3 b5 Nb1 b4 a4 Kd7 f4 Kc6 Kf2 Kb6 Ke3 c5 Ke4 g5 Ke5 c3 d4 g3 h4 g4 h5 g2 d5 b3 d6 b2 h6 c2 d7 g3 h7 Ra6 Qd4 Nf6 Na3 b1R Qc3 Ne8 Bd2 c1N Ra2 Nb3 Qb2 Rd1 Qc1 Nd4 Be3 Ka5 Qb1 b5 Rc2 b4 Rh4 b3 Rc3 b2 Nc2 Qb6 d8Q Bg4 Nf3 g1N Bh3 e6 f5 Be7 Bh6 Rg8 Qa1 b1N h8R Bg5 Qd6 Bd8 Nh2 Rg6 Qd5 Ra7 Qe4 Rc7 Qd3 Na6 Rg8 Re7 Rf8 Bh5 Rf4 Nac7 Rg8 Rf6 Rgg4 Rd2 Re4 Rg6 Rgf4 Bg4 Rb3 Nc3 Qb1 Nd1 Rc3 Qa6 Qb7 Qb6 Qc6 Ng7 Qe8 Rf6 Qg8 Nge8 Qh7 Nb3 Qe3 Rd6 Qd3 Nd4 Ne3 Kb4 a5 Ka4 a6 Ka5 Nc2 Rg6 Re3 Ngf3+ Ke4 Nh4 Ke5 Rg8 Ree4 Ng7 Kf6 e5+ Kg5 Nge8+ Bg7 Nf6 Kh6 Rge8 Bf8 Ree6 Kg7 R8e7 Kh8 Nfe8 Kg8 Na8 Bg7 Nac7 Bh6
1bN2bQk/Rr1pPK1B/1q1r4/p2npN1n/1Q1bn3/3pP1B1/P1bR2b1/N7 b - - 0 1 illegal: Other
6Bb/prbB2np/b1K1Pp2/1QQ1N2b/n1r2PbR/3q2Bk/P2p4/3N1R1n b - - 0 1 illegal: No possible last move
1B6/1K3NRb/B1r2bp1/Q1b1r1QQ/p1p4r/qkP1pn2/PP2Nr1R/n3n3 b - - 0 1 illegal: Other
b2Q1B1n/2p4k/1bR1Rp2/prr2B1r/PN1PR2b/1N3Pnn/q6p/3KQ1b1 b - - 0 1 legal: proof: e4 d5 c4 dxe4 h4 g5 c5 gxh4 c6 bxc6 Ba6 c5 Bf1 c4 g4 a5 b4 h5 a4 e5 d4 c3 f3 f6 b5 Kf7 g5 Kg6 b6 c2 b7 h3 Ne2 e3 Nbc3 h2 Rb1 e4 Ra1 h4 Bg2 h3 Nd5 Nd7 b8Q Bc5 Rb1 Kh7 Ra1 Bb6 Ng1 e2 Kd2 e1B+ Ke2 e3 Nc3 Bh4 Ne4 Nf8 Qe1 Nh6 Ba3 c1R Nc3 Qd5 Na2 Ng4 Nb4 Bb7 Qd8 Rc5 Kd1 Qa2 Rc1 Rb8 Ne2 Ng6 Rc3 Bc6 Nc1 Ba8 Nb3 Bf2 Rg1 h1N Rc1 h2 Bh3 Bh4 Rg2 Ng3 Re2 Rf5 Rc6 Nf2+ Kc1 Rd5 Bg4 Nh3 Kd1 Rf5 Na6 Re5 Bf8 Rc5 Nb4 Ba7 Rc2 Rbb5 Re6 Bb6 Re4 Kg8 Rc4 Rh5 Rc3 Nh8 g6 Rc6 g7 Kh7 g8R Rcc5 Re6 e2+ Kc1 Rcf5 Rcc6 Rfe5 Rg5 Red5 Rge5 Rdc5+ Qc3 e1B Re4 Bf2 Kd1 Be3 Qe1 Bg1 Bf5+
Q1Q3bn/1K3pB1/6r1/1np1k1pb/2bb1rP1/p1P1qPQ1/2N2BR1/RN2n2r b - - 2 3 legal: proof: d4 h5 a4 e5 g3 exd4 a5 h4 a6 h3 Bg2 hxg2 Bh6 bxa6 Be3 a5 Bc1 a4 Kd2 Ke7 Kd3 Kf6 Kc4 d5+ Kb5 a5 b4 c5 e4 a3 h4 a4 c3 d3 h5 d4 h6 d2 h7 a2 Qf1 d1B Rh5 a3 Qd3 Na6 Kc6 Bc2 b5 Nc7 b6 Qe7 b7 Be6 b8B Ra4 Kb7 Bc4 Kb6 Nb5 Qf1 d3 Nf3 g1R Qg2 d2 Nd4 d1B Rg5 Bh5 f3 g6 Be3 Bg7 Rg4 g5 Qh3 Rh1 Bf2 Qe6+ Bd6 Ne7 Kb7 Rg8 h8Q Ng6 Bf8 Ke5 Qg2 B2d3 Nc2 Bf6 Qh2 Rg7 Qg8 Nh8 Qh4 Rg6 Bg7 Qf5 Qc8 Qf4 Qh3 Qe3 Qh2 Kd6 Qg1 Bd4 e5+ Kd5 e6 Bf5 Bh6 Ke5 e7 Bfd3 Rh4 Rb4 g4 Bf5 Rh2 Bfd3 Rg2 Bf5 Nd2 Bfd3 Re1 a1N Nb1 Ra4 Nb4 Nc2 e8Q+ Kd6 Rf1 Ne1 Nc2 Rb4 Qf8+ Ke5 Qa8 Rf6 Qac8 Bh7 Bg7 Bg8 Qa8 Ra4 Qfc8 Ra6 Bh6 Rf4 Bg7+ Kd5 Qh2 Rg6 Qh3 Nd3 Rc1 Ne1 Qg3 Kd6 Nd2 Kd5 Ra1 Kd6 Nb1 Kd5 Bh6 Ke5 Bg7+
RB2bK2/1q2nQ1p/1b1p1Q1P/1pkPN3/pbn2r1B/1P1rb3/q5Rb/2NQ4 b - - 2 3 illegal: No proof kernel
q1bQ4/1p3nK1/1Nb1p1b1/2r2p1p/2q1rN1P/1PR1P2b/1kn2b1R/2QBB1B1 b - - 0 3 illegal: No proof kernel
qRbN2b1/pQ1B3b/Pp1P3K/B1b4p/2Q1rn2/3Np1q1/n1rbk2P/R2R4 b - - 0 1 legal: proof: e4 d5 b4 dxe4 f4 g5 b5 gxf4 b6 cxb6 Kf2 b5 Ke1 b4 Ke2 Kd7 g4 Ke6 c4 Ke5 a4 Kd4 a5 e5 a6 h5 c5 f5 d3 b3 c6 b6 g5 e3 Kf3 e4+ Kg2 f3+ Kg3 f4+ Kh4 b2 c7 e2 Qd2 e1B+ Qf2+ e3 Na3 b1B Qg3 f2 Qg4 Ne7 g6 Nbc6 Kg5 Bd2 g7 Nb4 g8R Na2 Bh3 f1Q Nc4 Qf2 Nd6 Qg3 Nb7 Nd5+ Kg6 Kc3 Nf3 Bc5 Ne5 f3 Rd1 f2 Kg7 f1B d4 Nf4 d5 Rb8 d6 Bh7 Kh6 Bc4 Nd3 Bd5 Rf8 Bdg8 Qe6 Qe8 Nd8 Qc6 Qf7 Qa8 Bd7 Kd4 Qg7+ Ke4 Qc3 Kf3 Qc4 Ke2 Bb2 Bb7 Bc3 Rc8 Nc6 Re8 Ba5 Re4 Rb8 Bc8 Nd8 Bd5 Bb5 Rhe8 Bd7 Bdg8 Qd5 Rc4 Qf7 Rc2 Qc4 Bb7 c8Q Re4 Qc6 Bc8 Qb7
k1rq1b1R/3pp1Rp/1BBr1np1/3PP3/Q3n1Q1/K1N2B1b/4rq1P/1rN2r2 b - - 0 3 illegal: No possible last move
bR1NQ2r/kr2rp1n/1Nn1pP1K/q2PB2p/4P2Q/1R1N4/3pq1Br/1n4b1 b - - 0 1 illegal: No proof kernel
8/K1bNq1bb/p1R1r2q/P2N1pRp/k1r1qQRQ/1bn1p2P/2B1PB2/n7 b - - 0 3 legal: proof: d4 g5 f4 gxf4 c4 b6 c5 bxc5 Bd2 cxd4 Bc1 d3 Kd2 e5 Kc3 d5 g4 Kd7 a4 Kc6 b4 h5 h3 a6 g5 d4+ Kc4 d2 a5 d3 g6 f3 g7 f2 Qe1 d1B Bf4 d2 Nc3 e4 Na4 Ne7 g8Q Rh6 Bd6 Bf5 Bg2 f1Q Qh8 Bh7 Nc5 f5 Kd4 Kb5 Bf3 Qg2 Ne6 Nd5 Qe5 Bg7 Bc5 Nd7 Qh4 Rc8 Rc1 Ka4 b5 Qe7 Nf4 Re6 b6 Qg6 b7 Qh6 b8R e3 Bd6 Nc5 Be4 Nb3+ Kc4 c5 Nf3 Bc2 Rhg1 d1Q Rg5 Qh1 Rb5 Na1 Rb4+ Ka3 Qd4 Rc7 Ne5 Bb3+ Kd3 Qg2 Nd7 Qh1 Qe5 c4+ Kd4 c3 Bb1 c2 Rc4+ Nb4 Nd5 Ka4 Rcg1 c1B Bc2 Rc6 R1g4 Ba3 Rc5 Na2 Bc7 Rb6 Rc6 Nc3 Bd6 Rb4+ Kc5 Re4+ Kb6 Rc4 Ka7 Qe4 Qh2 Bb4 Bg3 Bd6 Bf2 Bc7 Qf4
1r1qQ2b/1qrk1p2/RR4Np/4nP1K/n3qpBP/1b4pB/3Pq3/1bB1N1Q1 b - - 0 1 illegal: No proof kernel
5q2/4q1RQ/pQ3rRn/2Pp1p2/1KBbNk1B/3PnPp1/r1Q2bN1/1b3br1 b - - 0 1 illegal: No proof kernel
4b1rb/6pp/q1pQ1Nr1/1kqB1PBp/2PqbBn1/3n1QKP/Nb6/2R4R b - - 0 1 illegal: Other
1b5q/1p1RR3/bPB1q3/p7/1R1QBNpp/br2n1nP/PrQ3n1/K1k2n1N b - - 1 3 legal: proof: g4 f5 d4 fxg4 d5 c5 d6 c4 Bd2 c3 Bh3 exd6 Kf1 cxd2 Kg2 d5 Kg3 d4 Bf1 Ne7 Kg2 Ng8 e4 g3 Kf3 Kf7 Ke2 Kg6 Kd3 Kg5 b4 Kf4 c4 h5 Kc2 g5 Kb2 d5 c5 g2 f3 Ke3 e5 g4 c6 d3 c7 d4 e6 Nd7 b5 Ne5 e7 Bd7 e8Q Nf6 c8B Ne4 b6 Bb5 f4 Ng6 f5 Nf4 Qb3 d1Q f6 Qe2+ Qc2 d2 f7 d3 Nh3 g1B Nc3 d1N+ Kb1 d2 Qe5 a5 Bg2 Ba3 f8R Ba6 Bf5 Rc8 Rg8 h4 Qb2 Rh5 Bf3 Ng2 Rg7 Qh8 Nf2 Rc7 h3 Bh2 Rg1 Rc5 Rc7 Rb5 Re7 Qe1 Qf6 Bb8 Ne2 Rg5 Rd7 Ng3 Bc6 Rb4 Bg6 Rgb5 Nf4 Qe2 Nh1 Qc4 Re7+ Qe6 Nd3 Ke2 Bge4 Ke3 Qe5 Ke2 Qc3 Nde3 Rd1 Nef1 Qc2 Ke3 Rc1 d1N Nf4 Rc4 Qb4 Rc3 Qbb2 Rd3 Qb4 Nb2 Rd1 Nc4 Qbb2 Rc3 Rdd7 Rd3 Qcb3 Rb4 Qg7 Kd2 Qd4 Rb5 Re8 Nce3 Ree7 Bb4 Kb2 Bc5 Rb1 Ba3+ Ka1 Rb4 Rb2+ Kc1 Qbc4+ Rc3 Rb3 Rc2 Qe2 Rb2 Qf2 Rc4 Rb4 Rc3 Qe2 Rcb3 Qc2+
4R2b/1K2pr2/1n1pqr2/1B1NR1bp/n1n1P2b/kPq2QNP/3p2Q1/2B1B2b b - - 0 1 illegal: No possible last move
7Q/1n1K1R2/N3p1r1/kR1BqprN/1ppBn1bR/qPQnPP2/b2n4/4b3 b - - 0 3 legal: proof: h4 g5 c4 gxh4 c5 a5 b3 a4 c6 a3 Qc2 dxc6 Qb2 axb2 Na3 c5 Nb1 c4 g4 c3 d4 Kd7 a4 Kc6 f3 Kb6 Kf2 h5 Ke3 c5 Ke4 h3 Ke5 c2 g5 h2 e3 c4 d5 h4 d6 h3 d7 Ra6 g6 Qe8 d8R Bg4 g7 f5 Ke6 Nc6 Nc3 b1B Rd6 Nf6 g8Q Rh5 Ne4 Rg5 Bb2 c1N a5+ Kb5 Bd3 Nd8+ Ke5 Kb4 Qg7 b5 Ne2 Rb6 Rd7 Nb7 Nc5 Qa8 Be4 Nd3+ Kd4 Qe8 Bd5 Ne4 a6 Rbg6 a7 Ng3 a8Q Nf1 Bc6 e6 Be4 Qe7 Ra6 Ba2 Bd5 Qd6 Rf7 Qe7 Rg1 h1N Ng3 h2 Rb6 Nhf2 Nh5 h1Q Na6+ Ka5 Qd8 Qh4 Rh1 Qg3 Rh4 Ne4 Qe5 Bg7 Qh8 Qa3 Ba1 Bf8 Qef6 Bb4 Qfg7 Nf4 Ke5 Be1 Bc3+ b4 Bb2 Nbc5 Qf6 Nfd2 Qfg7 Nf6 Kd6 Nfe4+ Kc7 Nb7 Kd7 Nd3 Qd4 Nc1 Qd3 Qb8 Bd4 Qe5 Qc3 Nd3 Rb5+
n3r1B1/q1Bn1Qr1/1Pb1q1BN/p1p3pq/n1Nbp3/PR2QRn1/2P5/2K3k1 b - - 0 1 illegal: No proof kernel
K2n1rrb/1pp2b2/B2Q1k2/N2qn2R/1PPp1nqp/4r3/3PBRRN/3r3Q b - - 2 3 legal: proof: h4 g5 f4 gxh4 f5 a5 f6 a4 b3 a3 Bb2 axb2 Rh2 exf6 Rh3 f5 Rh1 f4 Kf2 h3 Kf3 Ke7 Ke4 h5 Kd5 f5 e4 h2 a4 f3 g4 f4 g5 d6 a5 f2 a6 f3 b4 Nd7 g6 Bg7 e5 Ra7 e6 Nh6 Be2 f1N Na3 b1R Nc4 f2 Nf3 Ne5 c3 Ra8 a7 Rb3 Na5 Qd7 c4 Kf6 e7 Re3 e8B Ng3 Qf1 Qh3 Bb5 Nhf7 Ba6 Qd7 Qh3 f1R Rd1 Rb8 a8Q Re8 Re1 Bh8 g7 Qf5 g8R Be6+ Kd4 Rg1 Rf1 d5 Rf2 Rd1 Qa7 Red8 Qc5 Rdc8 Rg4 Rg8 Qd6 Rbf8 Rg5 Nd8 Rg1 h1Q Kc5 Qg2 Qh1 d4 Nh2 Qgf3 Rgg2 Qg6 Rf5+ Kg7 Rg5 h4 Rf5 Qfg4 Rg5 Nh5 Rgf5 Bd7 Kd5 Be8 Rg5 Ndc6 Rgf5 Qh7 Ke6 Nd8+ Ke7 Nf4 Rh5 Bf7 Qe6 Ned3 Kd7 Ne5+ Kc8 Qe4 Kb8 Qd5 Qd7 Kg6 Ka8 Kf6 Qd6+
n7/Nkbb2q1/Pp1rr1pQ/3nbnR1/1P1b2K1/1B1qp1BR/1N3pP1/2B1Q3 b - - 0 1 illegal: No possible last move, all moves rejected
RbbR4/p1p5/1B3NnR/PB2p1Q1/1QrN4/1rn1P3/kb1qP2p/nn3K1b b - - 0 1 illegal: Other
1bn2QB1/pbB1n1p1/2n1k2N/2p1n1QP/2Pq4/PR1Qb1N1/rp1b4/2r2R1K b - - 0 1 illegal: No proof kernel
1n1Q4/bp1ppR1r/Bb3NRP/1kb3B1/3Ppn2/1q1r1b2/1Pn2RQ1/N1Kn4 b - - 0 1 illegal: Other
1R3Br1/1q4p1/B1k1r1Pp/1bP1pnq1/QbN1PpNQ/p4b2/3qQK2/1n2R3 b - - 0 1 illegal: No proof kernel
1b1NB2Q/2R2b2/K1p1qpr1/1P3RQ1/1p1r1Nn1/1Prq1p2/3BpP1k/3Rn1q1 b - - 0 1 illegal: Other
1q2Rq2/BB1r4/2pP3n/p1pQ1p2/k1P4K/PnbNB1pb/Qr2n3/3R1Nr1 b - - 0 1 illegal: No proof kernel
3N1Nrb/2kR4/q2n2r1/1Rp4p/P4QpB/RKbp4/2BP2pP/q2bQnr1 b - - 0 1 illegal: No possible last move
N2kRqR1/1bRP4/4q1Qr/K3pQbp/4r2b/pp1n4/NP1p1BBP/1n2q3 b - - 0 1 illegal: No proof kernel
2B2n1r/1BRNp3/6p1/Q1K1p2n/3prb2/2nrNpP1/P1kqnP2/1b2BQR1 b - - 0 1 illegal: No proof kernel
4qB2/p1r1RpnQ/2pbpn2/P4P2/p1Kb3k/R1n1r3/P3BN1b/Bb1Q3N b - - 1 2 illegal: Other
4RnNQ/2KpnP1q/1Qp4n/3P2b1/2Np2bB/pRPBrp2/b4k1r/R4b2 b - - 0 1 illegal: No possible last move
N1Q5/1pNp1Rp1/2ppBb2/KP2Bn1b/PnB5/2rP4/1n1R1k2/1rbQ2nq b - - 0 1 illegal: Other
4nR1B/Q1P2Rn1/Kp2rQ1b/p1r5/PN1N3p/3Q1Br1/1Ppkb1pn/r3q3 b - - 0 1 illegal: No proof kernel
k1b3n1/b1pQp3/1p1p2pr/1Q2rb1b/2K3N1/1BBP1R2/B1P3PN/R1n3qr b - - 0 3 illegal: No proof kernel
8/bn1qBk2/np1pp2K/3NP1r1/p1R1N1QQ/1P1n1nBp/P1R1q3/2rb1B2 b - - 1 3 legal: proof: g4 f5 d4 fxg4 h3 gxh3 Bg5 c5 Bc1 cxd4 Kd2 g5 f4 a5 c4 h5 e4 h4 f5 g4 b3 d3 Ke3 g3 Kf4 g2 Kg5 h2 f6 a4 c5 d2 e5 h3 c6 Rh5+ Kg6 Rg5+ Kh7 Na6 c7 Nh6 Qe2 d1Q Nd2 Kf7 Qf2 Qe2 Ngf3 g1N Ne1 Nf3 Ng2 Nf5 Ne4 Nd6 Nf4 b6 Nd5 Nb7 Rg1 h1N Qh4 Nf2 Rg4 Nd3 Bf4 e6 Rc1 Bd6 Bg3 Qe3 Ndc3 Ke8 Nf2 Nfe1 Nfd1 Na5 Rb4 Bb7 c8Q Bb8 Re4 d6 Nf2 Ba7 Qc4 Rc8 Kh6 Qd7 f7+ Ke7 f8B+ Kf7 Rd4 Bf3 Nd5 Bd1 Be7 Nf3 Re4 Qd2 Re2 Nb7 Qcg4 Qe3 Ne4 Rc5 Rb2 Qe2 Rd2 Ra5 Rc7 Rc5 Rb2 Rc3 Rc4 Rc1 Rbc2
1NQ3R1/nbQB1kpB/rNnp1P2/R7/1np1p3/4rp1K/2P1bPp1/2Bq2b1 b - - 0 1 illegal: Other
5K1n/3pp1P1/1p1qr3/b1R3pp/rpQNbBNr/1n1R2PP/Qb2B3/1N4k1 b - - 0 1 illegal: Other
bK2k1R1/1P4BR/B3p1n1/rp1QP2n/p1Q3pN/qp1n2p1/P3R1N1/r1q3b1 b - - 0 1 illegal: No proof kernel
BQ2b2B/1pN1p3/rPR1rQ2/p2pp3/qn1p4/q1PN1n1R/P4K2/kqb1R3 b - - 0 1 illegal: Other
8/k1QRBqp1/pn2qRRp/1pN4P/2p3Pp/3qQrbr/4B1bP/4N1Kn b - - 1 2 illegal: Other
3N4/p2q1PB1/1RQ1Npn1/1R1Q1Pr1/1r1pppqp/K2B3n/P5qQ/1bk3b1 b - - 0 1 illegal: Other
rRk5/q2p1PK1/b1b1N3/1BBQ2p1/Nr2p3/bp1b1pn1/RPpPn3/1NQ5 b - - 0 1 illegal: No proof kernel forced: bxDB
1K1Rq3/2p2P1k/b1RBNrr1/1P1NB3/b3Q1bb/3n1P1q/4n3/4b1NN b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 c4 d5 cxd5 f5 e4 b5 axb5 a4 exf5 a3 b6 a2 Ba6 Bxa6 b5 Bc8 b7 Nc6 b8Q Nxb8 Ke2 Kf7 Kd3 Kg7 Ke4 h5 g4 e5 d4 h3 f6+ Kh7 g5 h4 f7 h2 d6 h3 Kd5 e4 d7 e3 Nc3 e2 Bf4 e1B Be5 Nh6 Qa4 Na6 Kc6 Nc5 d5 Qe8 d6 Rg8 Qe4+ Rg6 Rc1 a1Q Nce2 Nf5 Ng3 Qa3 Rc2 Rf6 Rc4 Be7 g6+ Kh8 g7+ Kh7 g8N Nd3 Rd4 Ba6 Rd5 Bd8 Ne7 Rg6 Rd4 Ra7 Nd5 Bh4 Nf3 Ra8 Rg1 Rb8 Nh1 Ng3 Rg2 Ne2 Ng1 Qg8 d8N Rb6+ Kd7 Rc6 Ne6 Qa8 Ng3 h1B Rc4 Rb6 Rc6 Qf8 Rh2 Bf3 Nh1 Bg4 Rg2 h2 Rg3 Ndf4 Rd3 Qc3 Rd4 Qh3 Rd2 Nd3 Rd1 Rb7 Rd2 Qe7+ Kc8 Ra7+ Kb8 Qd7 Ng3 h1B Rd1 Bhf3 Nh1 Qe7 d7 Qe8+ d8B Rb7+ Ka8 Rb6 Bd6 Bc8 Bf6 Ba6+ Ka7 Ng3 Rd2 Bd1 f3 Ne2 Bfe5 Bc8 Ba3 Ra6+ Kb8 Ba4 Rd6 Bb7+ Rd8 Rc6 Rc2 Rd6 Rc6 Ba6 Nd4 Re6 Bad6 Rf6 Ne6
3n2bB/2nRr3/3PB1N1/nqPr2R1/P1R2K1R/r1b2p2/7N/kr1n3Q b - - 0 1 legal: proof: f4 a5 c4 c5 d4 h5 g4 e5 gxh5 exf4 b4 d5 bxc5 dxc4 d5 c3 e4 a4 Qxa4+ Qd7 Qd1 Qd8 e5 Ne7 e6 Ng8 e7 Kd7 e8Q+ Kxe8 Ke2 Ke7 Kf3 Kf6 h4 Ke5 a3 g5 d6 f5 h6 b5 h5 b4 h7 g4+ Kf2 b3 h6 f3 Kg3 f4+ Kf2 c2 Be3 c1N Bh3 b2 Ne2 g3+ Kf1 f2 Kg2 f1N Kf3 g2 Bf2 g1R Be3 Nb3 Bf5 Qa5 Qd3 Nf6 Be4 Bg7 Rh4 Nd5 Nd2 b1R Bf5 Qb5 Be6 Re8 h8R Nc7 h7 Na5 Rg8 Rg5 h8R Re7 Qh7 Nbc6 Rg4 Ra7 Qh1 Nd8 Rhh4 Ra8 Bg1 Ne3 Nf1 Nd1 Nh2 Rf5 Rg5 Bh8 Kg4 f3 Nf4 Ke4 Ng6 Kd3 Kg3 Kc2 Bd4 Rd5 Kf4 Bf6 Bb2 Bc3 Rg7 Bd7 Rf7 Be8 Rfh7 Bf7 Rg7 Bg8 a4 Rb8 Ra2 Ra1 Ra3 Kb1 Rb3 Ra3 Rb4 Ka2 Rc4 Kb1 Bc1 Ka1 Be3 Qa6 Bd4 Rb1 Rf7 Qb5 Bh8 Re8 Rd7 Re7 Rh3 Rb2 Rhh5 Rb1 Rh4
bB5B/2Rp1PP1/b3R3/4bK2/1RP4R/4b1Q1/1kr1qN1n/nN1n1nr1 b - - 0 1 legal: proof: e4 a5 b4 b5 h4 g5 a4 gxh4 c3 f5 exf5 c6 Bd3 c5 Bc2 c4 d4 cxd3 bxa5 dxc2 axb5 Bh6 Qd4 Bg7 Qd1 Bf8 Kd2 Kf7 Ke3 Kf6 Ke4 h5 g4 e5 f4 h3 b6 h4 a6 h2 b7 h3 c4 Qe7 a7 Nh6 Ra6+ Nc6 b8B Rg8 Ra4 Ba6 Ra5 Nd4 Ra1 Nf3 Bd6 Bg7 Ra4 Nd2+ Ke3 e4 Bca3 c1B Qf3 Nf1+ Kd4 e3 Bb8 e2 Bb2 e1N Qg3 Qe2 g5+ Kf7+ f6 Ke6 g6 Be3+ Ke4 Ng4 f7 Nc2 f8R Be5 Rd8 Na1 Rc8 Rg7 Rc7 Kd6 Rb7+ Kc5 f5 Rg8 f6 Rg7 Kf5 Rg8 Nc3 Kd4 f7 Kd3 Ne4 Kc2 Nf3 Kb1 Nfd2+ Kc2 Rg1 h1B Rc7 h2 Nf2 Bf3 Bd4 h1N Nb1 Ngh2 Bc3 Nd2 Rd1 Ndf1 Rd6 Bd5 Re6 Bdb7 Ng4 Nf2 Bb2 Nd1 Nf2 Bd6 Bf6 Be5 Bh8 Kb2 g7 Re8 Rh6 Re6 Rh4 Rg6 Rc6 Rg4 Re6 Rg6 Bd6 Re8 a8R Bd5 Rc8 Ba8 Bb8 Re7 Qf3 Rg1 Rc7 Re8 Qg3 Re7 Rf6 Re6 Rg6 Rd6 Rgh6 Rd2 Re6 Rc2 Rb4+
5rbr/NpQPr3/6N1/4NP1q/K1R1Np2/Prbq4/2Bq1k2/b1B4R b - - 0 1 legal: proof: c4 a5 e4 f5 h4 c5 b4 axb4 d3 g5 d4 d5 cxd5 cxd4 Qf3 gxh4 Qg4 Nf6 Qd1 Ng8 Qe2 e5 Qf3 Nh6 Qd1 f4 f3 Nf5 exf5 e4 Bc4 e3 Bf1 Na6 Qd2 Nc5 Qd1 Ne4 fxe4 Ke7 Ne2 Kf7 Ng1 Ke8 g4 Kd7 e5 h5 e6+ Kd6 a3 Kc5 g5 e2 Kd2 e1B+ Kc2 b3+ Kb2 d3 e7 Kd4 e8N h3 d6 d2 g6 Ke3 g7 h2 g8N h4 Bb5 h3 Ne7 Kf2 Be2 Bg7+ Nf6 Be6 Bb5 Bg8 Qc2 Rh7 Kc3 b2 Kb4 Rc8 Qc6 d1Q+ Nc3 Qd3 Nf3 b1R+ Ka4 Rb3 Ng6 Qd7 Rb1 Rf8 Qc7 Bh8 Bc6 Re7 Nb5 Bc3 Nfe5 Qd8 Be4 Qd7 Re1 h1R Ra1 Qd8 Na7 h2 Ra2+ Qd2 Rc2 Ba1 Rc4 Bg7 Nh5 Bf6 Ng3 Qd7+ Nec6 Bfc3 Bc2 Qe6 d7 Qee2 Nce5 Qed3 Ree4 Rg1 Bd1 h1Q Re1 Qh6 Bc2 Rh1 Rg1 Qg5 Re1 Rh8 Rh1 Qh5 Ne4+
4NnRq/b1NrB1qP/2b5/Rbn2P2/1NN1Q1n1/2Pb4/6B1/1bk1rn1K b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 d4 c5 e4 f5 exf5 b5 axb5 axb4 Be2 cxd4 Bc4 Rh3 Bf1 Rh8 f4 Kf7 Kf2 Kf6 Kg2 g5 h4 e5 b6 d5 c3 g3 h5 e4 h6 e3 b7 d3 h7 e2 Ba3 e1N+ Kh3 b3 Bd6 d2 Ba3 b2 Rh2 d4 Bd6 g2 Qa4 d1B Bb4 d3 Be2 g4+ Kg3 d2 Qa2 Nd7 b8N Ra7 Qa4 Ba6 Qc2 Bb5 Rh4 Bc5 Kh2 g3+ Kh3 Nf8 Nc6 Nh6 Bg4 Rd7 Qb3 Nd3 Qc4 Bda4 Rh5 d1B Nd2 b1B Ngf3 g1Q Nh4 g2 Qe4 Ba7 Bf3 Ng4 Nc4 Nc5 Rg5 Bdc2 Rg8 Bd3 Ba3 Qd4 Nb4 g1N+ Kg2 Ne2 Kh1 Qe7 Ra2 Qg7 Bg2 Bc6 Ra1 Bab5 Ra2 Nc1 Ra1 N1b3 Ra2 Nd2 Ra1 Kf7 f6 Nf1 Nf5 Kg6 Nfd6+ Kh6 f5 Kg5 f7 Qf6 Qd5 Kf4 Ne8 Qd8 Nb6 Ke3 Qe4+ Kd2 Nc4+ Kd1 Ra2 Nfe6 f8N Qdf6 Ng6 Nf8 Nf4 Qd4 Nfd5 Qde5 Nb2+ Kc1 Ndc7 Rd4 Nba6 Qg6 Qf3 Nfd7 Rg7 Nb3 Nf6 Re8 Rg8 Nf8 Qe2 Re7 Nfe8 Rdd7 Bc5 Re6 Be7 Nc5 Nb4 Qh8 Ra5 Qgg7 Nc4 Re5 Qf3 Re1 Qe4
1R1B1r1R/r7/b1q3p1/1N3PPr/1RPBr1rQ/nr2NR2/r4n2/b1K3k1 b - - 0 1 legal: proof: b4 a5 g4 h5 d4 b5 e4 c5 g5 cxd4 Be2 f5 Bg4 hxg4 exf5 axb4 a4 Ba6 axb5 Bc8 Kd2 Kf7 h4 e5 c4 d5 f4 g6 f6 Ke6 f7 Kf5 h5 Ke4 f5 g3 h6 d3 b6 g2 b7 b3 h7 d4 Ra2 b2 Nh3 g1R Qb3 Kf3 Nc3 Kg2 Qa3 b1R Nd1 e4 Rb2 Qc7 Ra2 Nc6 b8B Ra7 Qa5 Ba6 Qb4 Nh6 Nhf2 Bg7 f8R Rb3 Qc3 Nb4 Rh3 Ng4 Nb2 Qc6 Bf4 Nc2 Nfd1 Na3 Be3 Nf2 Rc8 Rf8 h8R Kf1 R3h7 Rg4 Rb8 Kg1 Rh3 Be5 Bf4 Bf6 Na4 e3+ Ke1 e2 Kd2 e1R Bc7 Re3 Bb2 Ree4 Ne3 Bg7 Rf3 Be5 Ke1 d2+ Ke2 d1R Bd8 Rb1 Kd2 d3 Qd4 Ra1 Nc3 Bg7 Nb5 Bf6 Bc1 Be5 Rb2 Ra2 Qd7 Bf6 Qh7 Bd4 Qh4 Bg7 Ke1 d2+ Ke2 d1R Bd2 Bf6 Bc3 Rdd7 Bd4 Rh7 Kd2 Rh5 Kc1 Bg7 Rb1 Bf6 B4b6 Ba1 Bd4 Rd3 Rb4 Rc3+ Nc2 Rb3 Ne3
2Bnrq1n/1P2b1Rb/4P1q1/1bNr4/Qn4Rr/K1kR1Pp1/5b2/4N1RB b - - 0 1 legal: proof: h4 d5 d4 b5 g4 e5 a4 f6 axb5 exd4 c4 Ba3 cxd5 Bf8 h5 g6 g5 gxh5 g6 h4 Bg5 fxg5 Kd2 Ke7 Kc1 Kf6 e4 Ke5 b4 c5 Kb2 h5 d6 a5 d7 a4 g7 d3 b6 Kd4 b7 a3+ Kb3 d2 e5 g4 e6 g3 b5 c4+ Ka2 h3 b6 h4 Qe2 d1R Nd2 c3 Qf3 c2 Ba6 c1B Nf1 h2 Ne3 h3 Nf1 Ne7 g8B Rh4 Qh5 Be3 Bc4 Kc3 Qg4 Nbc6 b8R Ba6 Bh7 Rd5 Nf3 Ng6 Ne1 Be7 Nd2 Qf8 d8R Nh8 Rb7 Bb5 Rg1 h1B Be4 h2 Nb3 B3c5 Rdd7 Nd8 Rbc7 Bd4 Nc5 Bg2 Qd1 h1Q Qa4 Bh3 Bg2 Bf5 f3 Bh7 b7 Qh3 Bh1 Qg4 Rb1 Qg6 Rb4 Be3 Bf1 Bf2 Rg4 Ndf7 Rd6 Re8 Rcd7 Nd8 Be2 Bg5 Rg7 Be7 Bd3 Kd2 Kb3 a2 Ka3 a1N Rd7 Kc3 Be4 Rd6 Bc6 Rd2 Rd6 Rd5 Bd7 Nc2+ Ka2 Qh5 Bc8 Nb4+ Ka3 Qg6 Rd7 Rg5 Rd2 Rd5 Rd3+
QRR3r1/7N/1K2P3/n2NNnp1/1bP4n/1NBk2rr/1P2rr1q/5qqB b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 b5 axb5 Bb7 h5 Be4 g3 e5 Rh3 exf4 Rh1 Bg6 hxg6 fxg3 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 e3 Ke4 b6 f5 Kb5 d5 c4 h5 b7 a5 g7 f4 Bd2 f3 Bc3 h4 Qe2 f2 Bd2 a4 Qd1 h3 Qb3 h2 Qa2 g2 Nh3 g1N Bc1 a3 Bd2 d3 Be1 d4 Bb4 d2 Bc3 d1R Bb4 d3 Bc5 d2 Qb3 a2 Nf4 Re1 Bg2+ Nf3 Bb4 f1R Qa3 d1R Nd5 Qd6 Bc3 Kd3 e4 Nh6 g8N Nh4 e5 Re2 e6 Rff2 Nd2 Nc6 b8N N6f5 Nb3 Rg1 Nd7 Na5 Ngf6 Be7 Bf3 Rg3 Nh7 Rag8 Raf1 Qf4 Kb6 a1Q Qa2 Bb4 Ne5+ Kc2 Rd1 Qd2 Rhf1 h1Q Bg2 Qh2 Bh1 Qf4 Qa4 Qb1 Qc6 Qf3 Qa8 Qfg2 Rd4 Qgg1 Rfd1 Qa1 R1d3 Qaf1 Rf4 Nh6 Rf8 N6f5 Rc8 Nf3 Nf8 Rhh3 Nh7 N3h4 Rf3 Nh6 Rff8 N6f5 Nf3 Kd3 Rb8 Qfg2 Rfc8 Q2f1 Ne5+
q2k1n1n/RP6/1QNr1nnb/4nB1p/NrP1R3/4rB2/N2N1P1K/1r1q4 b - - 0 1 illegal: No possible last move
1R1B1knn/1rpN2b1/1R5R/Q4r1r/3b2BR/1K6/PPNr2Pn/4bn1b b - - 0 1 illegal: No proof kernel
1n2b1RB/Npq2BNK/P1Pk4/1q1q4/3Rn3/n3b1bP/4Q2n/RqR1b3 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 h4 fxe4 Kd2 a5 Ke1 axb4 Bh6 g5 Qc1 g4 Qe3 Ra5 Bf4 h5 Qf3 Rg5 hxg5 h4 Qd1 h3 Be3 h2 Bc1 Rh3 gxh3 Bg7 Qd2 Bh6 Qd1 Bf8 Ke2 d5 f4 Kd7 a4 e5 c4 d3+ Ke3 b3 a5 d4+ Kf2 e3+ Kg3 e4 Kh4 e2 Kh5 e1B Kg6 g3 f5 d2 a6 e3 f6 b2 f7 g2 c5 e2 c6+ Kd6 Qb3 d1Q Ra5 d3 Qc2 d2 Ra1 Bd7 Kh7 Bg3 g6 e1B g7 Qe2 Na3 b1N Bb2 d1Q Nf3 g1N Nd4 Qc7 Ne6 Qb5 Bc4 Nf3 Qe2 Qdd5 Bc3 Be7 f8R Be8 Rf4 Bg5 Rd4 Be3 Rf1 h1Q Ba2 Ne7 g8R Nh2 Ng7 Nf5 Bc4 Kc5 Rg1 Nd6 Bb3 Ne4 Ba2 Qbb6 Nb5 Na3 Na7 Qb5 Bc4 Kd6 Bb3 B1d2 Rgc1 Bde1 Rdd1 Qd2 Bf7 Qdd5 Bf6 Qg1 Rd4 Qf1 Ne6 Qb1 Bh8 Qb5 Ng7 Qb1 Qb2 Qb5 Qe2
bq1Nq1QK/2BbnN2/4r1pN/p3rRBN/1P4rb/k1q5/2P1P3/4R2n b - - 0 1 legal: proof: g4 f5 a4 c5 f4 b5 axb5 h5 d4 cxd4 Bh3 e5 gxf5 exf4 Bg4 hxg4 Kf2 Ke7 h4 Kd6 f6 Kc5 b6 Kb4 h5 d5 f7 a5 b7 f3 Kg3 g6 Kf4 d3 Ke5 g3 h6 d4 b3 d2 h7 d3 Ra3 f2 Nf3 f1B Nd4 g2 Qe1 g1R Nb5 Ra6 Qh4+ Rg4 N1c3 d1Q Ne4 d2 Nd4 Qe1 Nf6 d1Q Bg5 Ne7 Nh5 Qe8 Nf5 Qb1 Nh6 Nbc6+ Kf6 Bg2 b8B Nf5 Bc7 Ng3 Qh3 Qd2 Re1 Be7+ Kg7 Bd7 f8N Nh1 Ne6 Qe3 Qg3 Qc3+ Qe5 Rf8 h8N Rf5 N8f7 Rb6 Qf6 Re5 Ned8 Qbb2 Raa1 Bf3 Rab1 Ka3 Qe6 Bf6+ Kh7 Ne7 b4 Ba8 Qd5 Rbe6 Rf1 Qc1 Rf5 Qg1 Re1 Qa7 Be3 Bh4 Bg5 Ng8 Kh8 Qb6 Qd6 Qb8 Qf8 Ne7 Qg8
k4Br1/1nP2Q1b/B1r2N1b/qPpN3n/rR3qb1/1P5B/p7/K1RBn3 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 d4 gxh4 d5 Qe7 c3 Qd8 c4 c5 dxc6 d6 c5 dxc5 e4 h5 g4 a5 g5 f5 b3 a4 e5 a3 g6 f3 g7 h3 e6 h4 e7 a2 Nd2 h2 Bh3 f4 Ne2 f2+ Kf1 Nf6 g8B Nh5 Nf3 Bh6 Qd3 Ra4 Qf5 Qa5 c7 Nc6 Nd2 Nd8 Bc4 Rg8 Ng3 Nb7 Ke2 f1R Kd3 f3 Kc2 f2 Kb2 Bd7 Qf4 Bg4 Nf5 Kd7 e8B+ Kc8 Ne4 Rd1 Re1 h1N Nf6 f1Q Bd5 Nf2 Ne3 Rdd4 Be4 Rd6 Ned5 Rc6 Rb1 Qc4 Ka1 Nd3 Beg2 Qcb4 Re4 Ne1 Qf2 Qd2 Rb4 Qf4 Bf3 Ra3 Bd1 Ra4 Bf1 h3 Bf7 h2 Bh3 Nd6 Be6+ Kb7 Bc8+ Ka8 Ba6 h1B Bd2 Bg2 Rc1 Nb7 Bc3 Bh1 Be5 Bg2 Bd6 Be4 Bf8 Bh7 Qf3 Qd2 Qf5 Qg5 Qd7 Qf4 Qf7
B2r1Q1K/P1k1n3/2R1BNbp/r3N1P1/3r2r1/5qP1/1B1pB2b/2rnR2q b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 Bd2 e5 b4 axb4 Bxb4 exf4 Kd2 d5 Kd3 Kd7 e4 f5 c4 b5 a4 f3 e5 f2 e6+ Kc7 a5 f4 c5 h6 e7 f3 e8B Bd6 a6 Ne7 c6 Bf5+ Kd2 d3 Ke3 d2 Kd4 Bh2 g3 Nd7 Bc5 b4 Ra4 b3 Ba3 b2 Qb3 d1R+ Nd2 b1R Rc4 Nc5 Ke5 d4 Kf6 d3 Kg7 Na4 Qb4 Qd5 Ne4 Nb2 Be2 f1R Nf6 f2 Nf3 Bg6 Ne5 Qf3 Bd7 d2 Be6 Rhd8 a7 Rdc1 Rg1 Nd1 Bb2 Rd4 Bd5 Rb8 Qc5 Rb4 Kh8 Ra1 Be4 Ra5 Rc3 Nd5 Qf8 Ne7 Rc2 Re1 Rh1 f1Q Rc5 Kd6 c7 Q1g2 Rg1 Qh1 c8B Rbc4 Bc6 Kc7 Be6 Rd8 Rf1 Rg4 Rg1 Rcc4 Rf1 Rcd4 Rc2 Nc3 Ba8 Rc1 Rg1 Qc6 Re1 Nd1 Rc5 Qf3 Rd5 Qh1 Rd6 Qcf3 Rc6+
QNk2n1B/PNprpr1B/2rb3b/r5P1/1q2b3/1PRR3r/1K1B1B2/2r5 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 Ba3 axb4 Bc1 b3 Na3 b2 Nf3 b1R Bc4 d5 Ba6 b5 Rf1 b4 Ng1 b3 Qg4 b2 Qc4 Nc6 Bb5 Qd7 Ba6 Nd4 Bb5 Nb3 cxb3 Kf7 Nh3 Qd6 Rh1 Qd8 Ba6 Ke8 Ng1 Bg7 Qb4 Bh6 Bf1 Bf8 Qc4 dxc4 Kd1 Kd7 Kc2 h5 d4 c3 g4 h3 f4 h2 d5 h4 d6 h3 f6 Bh6 f5 Ra7 g5 Ra8 f7 Qf8 f6 Qg7 f8B Ra6 f7 Ra4 Nb5 Rf4 a4 Kd8 a5 Nf6 a6 Nh7 a7 Qd4 Bd3 Bb7 Nf3 Kc8 Bg7 Be4 f8B Rf7 Rd1 h1R Ne5 h2 Nd7 Qb4 Bd2 Rg8 Ra5 Ra1 Bh8 b1R Bfg7 Nf8 Bd4 Rg6 Nb8 Ra4 Rc1 Rd1 Bf2 h1R Ra6 Rh3 d7+ Kb7 d8Q Rc6 Qd5 Kc8 Rb6 Ra5 Nd6+ Kd8 Nb7+ Kc8 Rb5 Rg1 Re1 Rd1 Re3 Rge1 Rc5 Rg1 Bde1 Rd2+ Kc1 c2 Rc3 Rgh1 Kb2 c1B+ Kb1 Rd1 Bd2 Ba3+ Ka2 Rhf1 Bb1 Rc1 Red3 Rfd1 Ka1 Qa4 Ka2 Bd6+ Kb2 Qb4 Rg3 Bf3 Bh7 Be4 Rgd3 Qa4 Rg3 Rc4 Bde1 Qb4 Nd8 Be5 Qa8 Rd7 Rd3 Bd6 Bd2 Rc6 Nb7
6Nr/p3NR2/1bP1PQ2/p5Bn/P1b3B1/Kb2rRR1/b4Rbk/n3r2n b - - 0 1 legal: proof: b4 e5 d4 h5 g4 c5 gxh5 cxd4 f4 exf4 a4 Qa5 bxa5 b6 Bd2 bxa5 Be3 Nh6 Bc1 Ng8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb3 Kg4 h4 Kg3 e4 f5 c5 d5 h6 g5 h5 g4 c6 f3 h7 f4 e5 d3 h6 d2 Be2 f2 Ba6 f1B Be2 d4 Bd3 f3 Bf5 d3 Na3 f2 Qc2 d1B Nh3 d2 Nb1 Bg2 Ra3 f1B Nf2 Na6 Rg1 Nb4 Nc3 Nf6 Nfe4+ Kh2 Nd5 g3 Ne7 Nh5 Bg4 Be6+ Kb2 Bb5 Nf6 Ba2 Qf5 Nc2 Nfg8 Bbc4 Qf6 Re8 Rf3 Na1 Ka3 Bdb3 Rf2 d1N Bg5 Bg7 Rf3 Nf2 e6 Nh1 Rgf1 Rd8 R1f2 Rd3 Re3 Nf4 Qc3 Bd4 Ref3 Re3 Ng6 Bb6 Nf6 Ra8 h8R Ba6 h7 Bac4 Rf8 Rd8 Rf7 Re8 Rf1 Bh3 h8R g2 Ne7 g1R Rhh7 Rh8 Nfg8 Re4 Qf6 Re3 Bh5 Bg2 R1f2 Rge1 Bg4+ Kg1 Rhh3 Nh5 Rhg3 Kh2 Qg6 Bc7 Qg7 Bb6 Qf6
R1b1rR2/qBB2bP1/4NK1Q/2b2p1b/1n2q1Rn/1R2P1p1/3k1b1P/2Nb4 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 d6 cxd6 Ra2 d5 Ra1 d4 f4 g5 Ra5 g3 Bh3 g4 Qd3 exd3 Ra1 a5 Bg2 Rh5 Bf1 Rg5 fxg5 Ra6 Bh3 Rh6 Bf1 Rh8 Kd2 Ke7 b4 Kd6 c4 Ke5 g6 Kf4 b6 f5 g7 d5 b5 g2 c5 g3 c6 a4 c7 a3 b7 a2 b6 Ne7 Na3 Ng6 Nb5 Na6 b8R Qe8 b7 Bc5 Ra8 Nh4 b8Q Nb4 Qb6 Qe4 Qg6 Re8 Qh6+ Kg4 Rb1 a1Q Rb3 Qa3 e3 Qa7 Ne2 Kf3 Bb2 g1B Nc1 Bf2 Bh3 Na2 Rf1 Nb4 Kd1 d2 Bg2+ Kg4 Ke2 d1B+ Kd2 d3 Kc3 d2 Nd4 Bf3 Ba1 d1B Ne6 d4+ Kc4 d3+ Kc3 Bb7 c8R d2 Rd8 Bc8 Bh1 Re7 Rf8 Re8 Bg2 Bfe2 Bb2 Bc4 Bh1 Qf4 Bb7 Qf3 Ba3 Qe4 Bb2 Kf3 Ba3 Nd3 Bb4 Be2 Ba5 d1B Bb6 Nb4 Bc7 Bc2 Rd1 Bd5 Rd4 Bcd1 Nd8 Bf7 Ne6 Kg2 Rc4 Kf1 Rd4 Beh5 Rc4 Qb1 Rg4 Ke1 Kc4 Nd3 Kd5 Nb4+ Ke5 Kd2 Kf6 Qc2 Bc6 Qe4 Bb7
b1N5/2PK4/2pRRB1b/Bq3NPQ/r1r3bR/2pRr3/1P3n1r/1k2b1r1 b - - 0 1 illegal: No proof kernel
B4Rqb/1Q1qp1k1/Kb1NRn1n/2BP1BP1/3N4/5bBb/p1b3bP/4q3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 bxa4 g5 d5 g6 d3 Nf3 hxg6 Ng1 g5 Qe2 g4 Qf3 Nh6 Qd1 Ng8 f4 g5 Bg2 a5 Kf2 d4 Nc3 g3+ Ke1 g4 Bf1 Rh5 Nb1 Rg5 fxg5 Ra6 Nd2 Rd6 Nb1 Rd5 exd5 Bd7 Bd2 Be6 Bc1 Bc8 Kd2 f5 c4 Kf7 b4 a3 b5 g2 c5 f4 b6 g3 b7 a4 c6 f3 c7 f2 Be2 f1B Bf3 a2 Ba3 Bh3 c8B Nd7 b8B Bg7 Bad6 a3 Be2 Ndf6 Qe1 Nh6 Nc3 Qg8 Ne4 Bh8 Beg4 Kg7 Ne2 g1B Qb1 g2 Bb7 Bf2 Bg3 g1Q Ba7 Bfg2 Ba8 Qf1 Qb2 Bg1 Qb3 Qf5 Qb7 Qd7 Rf1 a1Q Bc5 a2 Nd6 Qb1 Bf5 Qb4+ Kd1 d2 Kc2 d1B+ Kd3 Qe1 Kc4 d3 Nd4 d2 Kb4 Bdf3 Ka5 d1B+ Ka6 Be3 Rf2 Bc2 Rhf1 Bd2 Re2 Ba5 Re6 Bb6 Bg6 Bfd1 Rf5 Bdf3 Bh7 Ne4 Rf8 Nf6 Bf5
b1K1n1R1/p2Q2NP/2b1N2b/2N2p1n/P2b1Bn1/5q1P/3R4/k1q1bbBN b - - 0 1 legal: proof: c4 e5 e4 g5 f4 b5 d4 exd4 e5 Na6 f5 Rb8 h3 Rb6 Bd3 Re6 fxe6 bxc4 Bg6 hxg6 g3 Rh4 gxh4 g4 Bf4 g5 Bd2 Ne7 Bc1 Ng8 Kd2 Ke7 a4 c5 b4 f5 h5 d5 h6 c3+ Kd3 g3 h7 g2 b5 c4+ Ke2 c2 Kf3 g4+ Kf4 g3 b6 d3 b7 c3 b8B d4 Nf3 g1N Qd2 g2 Qe3 d2 Rh2 d1B Na3 d3 Bd2 c1B Nb5 c2 Na3 Nf6 Qe1 Nc7 Nc4 Nce8 Be3 d2 Nb2 Qd5 Nd4 Nf3 Ne2 g1B Nd3 Bd7 Ng3 Be2 Nc5 d1B Qd2 Bf1 Nh1 Bc6 Rg2 Qb3 Ra2 Nh2 Rg8 Nhg4 Qd4 Ba3 Rb2 c1Q Rd2 Bdf3 Bd6+ Kd8 e7+ Kc8 e6 Bb4 Kg5 Nh5 Bdf4 Bh6+ Kg6 Ba8 Kf7 Bfc6 Qd3 Bf2 Qd6 Be1 Bg1 Bc3 Qd5 Be5 Qd3 Kc7 Qd6+ Kb6 Qd7 Nc7 e8N Ka5 Ke7 Kb4 Kd8 Ka3 e7 Bd4 Kc8 Qf3 Ng7 Ne8 Nge6 Qg3 Rd3+ Kb2 Rd1 Ka1 Rd2 Nef6 e8N Qf3 N8g7 Ne8 Bb8 Qcc3 Be5 Qc1 Bf4
2Bn2qb/2Q1pP2/K1b3Pp/NR4N1/nBb3n1/R1n3b1/1P1kq3/1R4bR b - - 0 1 legal: proof: d4 f5 a4 b5 f4 bxa4 g4 c5 e4 fxe4 f5 cxd4 f6 Ba6 Nc3 Bb7 Nb1 Bc8 h3 a5 Ke2 g5 Kd2 Ra7 Ke1 Rc7 Qd3 Rc5 Qd1 Rf5 gxf5 g4 h4 h6 Qe2 Rh7 Qd2 Rg7 Qd1 Rg5 hxg5 Bb7 Ra2 Ba6 Ra1 Bc8 Kd2 Kf7 c4 d5 c5 g3 c6 e3+ Kd3 g2 c7 a3 Bd2 a2 Nf3 g1B Bc1 a4 Rh4 e2 Bg2 e1B Be3 a3 Nh2 Bg7 Bf4 Bg3 Nc3 Ba6+ Nb5 Bh8 c8R Nc6 Rb1 a1N Rc7 a2 Nf1 Nb3 Qc1 a1Q Ra7 Nc5+ Ke2 Qc8 Bh3 Na4 Kd3 Nd8 Ne3 Qa2 Bd6 Qe6 Qc6 Bb7 Qb6 Bc6 Nc3 Qb3 Qc7 Qc4+ Kc2 Qe2+ Kb3 d3 Kb4 d4 Ka5 d2 Ne4 d1N Nc4 d3 Ka6 d2 Bb4 Ndc3 Bg4 d1B Rh1 Bb3 g6+ Kf8 f7 Kg7 f8R Nf6 Rb7 Qg8 Rb5 Ba2 Na5 Bc4 Bh3 Ng4 Re8 Qf1 Ng5 Kf6 Rh2 Qe2 Rh1 Nf7 Rb8 Nd8 Ra8 B4d5 Qa7 Ke5 f6 Kf4 f7 Bc4 Qc7+ Ke3 Ra7 Kd2 Ra8 Nf6 Bc8 Ng4 Nb7 B6d5 Ka5 Nc5 Kb6 Bc6 Ra3 Na4+ Ka6 Be8 Na5 Bd7 Rh5 Bc6 Rh1
2NR4/1n2PNRB/qb4b1/4K3/1qp1n1Br/2rB1p1p/k3BqPP/Q4b2 b - - 0 1 legal: proof: d4 a5 b4 axb4 f4 e5 c3 bxc3 dxe5 Ra3 Qd4 Ra7 Qd1 Ra8 a4 b6 a5 Qe7 a6 Qf6 Ba3 g5 fxg5 Qe7 Bb4 Qd8 Ba5 bxa5 Kf2 Ke7 Kf3 Ke6 Kf4 d5 e4 h5 g6 f5 a7 c5 g7 h4 Qf3 a4 Qe3 d4 Qd2 c2 Qd1 c1Q+ Nd2 d3 Rb1 a3 Qc2 a2 Rb2 a1Q Rb5 h3 Qb1 Qd6 Rb7 Rh4+ Ke3 Qcb2 Ngf3 Nd7 Nc4 d2 Nb6 d1B Bd3 Be2 Rd1 Qa6 Qa1 Bf1 Rc7 Bb7 Nc8 Ngf6 Be2 Rb8 a8B c4 Rd4 Nc5 Bd3 Qdb6 Rd8 Q2b4 Kd4 f4 Rf7 Bd6 g8B Bc7 Bh7 Qba7 Rg7 Bb6 Be2 Bc6 Bb7 Be8 Bc6 Bg6 Ba4 Ng4 Bc2 Nf2 Bcd3 Qf7 Rh8 Kd7 e6+ Kc6 e7 Kb5 e5 Nfe4 e6 Nb7+ Ke5 Ra8 Ng5 f3 Qd4 Ka4 e8B+ Ka3 Bd7 Ka2 Rd8 Qfe7 Nf7 Qec5+ Qd5 Qf2 e7 Qab5 Be6 Ra3 Bg4 Qa6 Qd4 Rb3 Qc3 Ra3 Qc1 Rc3 Qa1+
3K1Nk1/2R2Pr1/3b2pq/Qn4nr/p5NB/1nrN1Pb1/1p2n1P1/N2B3R b - - 0 1 legal: proof: e4 f5 exf5 c5 d4 cxd4 Bh6 Qc7 Bc1 Qxh2 a4 b5 Bd3 b4 Bf1 Ba6 b3 Qc7 Rh3 Bb5 axb5 Qc6 Rh1 Qc3+ Ke2 Qxb3 Ke1 Qb2 Kd2 Kf7 Kd3 e5 Kc4 h5 Kd5 a5 c4 e4 b6 b3 b7 g6 f3 e3 f6 h4 c5 h3 c6 e2 c7 e1B c8N a4 Qd2 h2 Na3 d3 Nh3 Rh7 Qe3 d2 Qf4 d1N Qd6 Na6 b8N Bg3 Qb6 Bfd6 Qc7 Rg7 Bb5 Nh6 Bd2 Qc1 Ne7 b2 Ng8 Nc5 Be1 Nb3 Qa5 Qe3 Be2 Nc3+ Kc4 Qc1 Nf4 Nb5+ Kd5 Kf8 Bf2 Nf7 Nh6 Ng5 Ng4 Kg8 Bd1 Ra6 Be1 Rc6 Nc2 Rc3 Nd3 Qe3 Rc1 Qf4 Rf1 h1R Na1 Rh5 Rh1 Nh3+ Nde5 Qh6 Bf2 Ng5 Nd3 Bc5 Be1 d6 Kc6 d5 Nd7 d4 Nf8 Bcd6+ Nc5 d3 Bf2 Bge5 Bh4 d2 Kb6 Bg3 Nd3 Be7 Kb7 Bc5+ Kc8 Bb4+ Kd8 Bbd6 Be2 d1N Rc2 Nf2 Bd1 Nfh3 Re2 Nf4 Re7 Ne2 Rd7 Be1 Rc7 Beg3 f7+
rb2q1N1/q1bnBBb1/4p2q/Bq6/5NK1/PkrBRp1Q/P1p3P1/3R4 b - - 0 1 illegal: Other
2Nb2b1/K7/p3b1PB/Pq3nRB/pQRrp3/PN1q4/1Bbk4/1q4rB b - - 0 1 illegal: No possible last move
2bN4/PNnP2p1/2r3rn/b2Q2n1/1B1PR3/b1prk3/2R1Bb1p/4NK1N b - - 0 1 legal: proof: g4 b5 e4 f5 h4 fxe4 c4 a5 f4 Ra6 f5 Rh6 b4 d5 cxd5 axb4 f6 Qd7 h5 Qf5 gxf5 Rxh5 Qg4 Rh3 Qd1 Rh2 d4 Kd7 a4 Kd6 f7 h5 a5 c5 f6 e5 a6 e3 a7 b3 Ra4 c4 Nd2 e4 Qc2 b4 Qb2 e2 Ra1 h4 Nb1 h3 Qc3 b2 Qa3 Rh6 Nc3 b1R Na4 Rg2 Nb2 h2 Nf3 Rgg6 Qa2 b3 Nd3 b2 Nf2 Na6 Qa5 Rh3 Ra2 Nh6 Qb5 Be7 f8N Nc7 f7 Ra1 Ne6 b1N f8N Nc3 Rd2 Ra6 Rc2 Rc6 Nd7 Rhg3 Bd2 Rh3 Nh4 Rd3 Ndc5 Bf8 Nd8 Be7 Ng4 Bf8 Kf2 e1B+ Kg2 e3 Nf3 Be7 Be2 Ne4 Kf1 Bf2 Bb4 Ng5 Ne1 Bf8 Rg1 Be7 Nf6 Bf8 Rg4 Be7 Re4 Bf8 Bf3 Be7 Nh5 e2+ Kg2 Bf8 Ng3 Be7 Bg4 Bf8 Nh1 Be7 Nf3 e1B Kf1 Bc3 Ne1 Bd2 Ba3 Ba5 Be2 c3 Ncb7+ Kd7 Bd6 Bf8 Be5 Ba3 Qb3 Ke7 Bd6+ Kf6 Bb4 Kf5 d6 Nf3 d7 Ng5 Re7 Kf4 Qa2 Rd2 Qd5 Rd3 Rf7+ Ke3 Rf4 Nh7 Rg4 Ng5 Re4+
1r3rRR/1nPN4/4kp1n/1rn2b2/B4P1P/R3B2Q/2pR2pK/1Nnr2n1 b - - 0 1 legal: proof: e4 h5 g4 d5 b4 dxe4 b5 a6 Bg2 axb5 Bh3 Rh7 Bf1 Rh8 c3 hxg4 Qf3 Qd6 Qd1 Qb4 cxb4 Be6 Bg2 Bf5 Bf1 Bc8 Nc3 c5 Nb1 c4 Ke2 e6 Ke1 Bc5 bxc5 Kd8 Nh3 Ke7 Ng1 Ke8 h4 Ke7 a4 g5 d4 e5 f4 b4 Kf2 b5 Kg2 f6 c6 c3 d5 b3 d6+ Ke6 a5 g3 a6 c2 c7 e3 a7 e4 d7 b2 d8R g4 Bd2 b4 Na3 b1R Qf3 e2 Nb5 b3 Qe3 b2 Qf2 e3 Rd3 Nc6 Rc3 Nh6 Rc4 Rb8 a8R Nd8 R1a7 Rf8 Nf3 Nb7 Rg1 Rd1 Ne5 b1R Nc3 Rb5 Rd4 e1N+ Kh1 g2+ Kh2 e2 Ra3 Nd3 Qe3 e1N Qh3 Ndc5 Nb1 Bd7 Be3 Ned3 Be2 Nc1 Rd2 Bc6 Nd7 Be4 Bf3 Bd3 Bc6 Bf5 Re1 g1N Ree2 Rb4 Rg2 Rb6 Ba4 Rb5 Rd5 Be4 Rh5 Bf5 Rd2 g3+ Kh1 g2+ Kh2 Nd8 Rg5 R8b6 Rc8 Rb8 Rg8 Ndb7 Rh8 Rf7 Rcg8 Rff8 Rg3 Rg8 Rg5 Rgf8 Rgg8
2bnR3/1pp2r2/p4qR1/P3bNbb/2PbB2B/1p2kB2/1n1NP3/1K1QB3 b - - 0 1 legal: proof: c4 h5 d4 e5 g4 hxg4 f4 Rh6 d5 Rc6 dxc6 dxc6 fxe5 c5 b4 cxb4 Ba3 b3 Bc1 Qe7 Kd2 Nh6 Qe1 Kd7 Qf2 Nc6 Qb6 Qe8 Qa6 Ba3 Qb5 Ke7 Bb2 Be6 Qd5 Qd7 Qd4 Rh8 Nf3 Ke8 Bc1 Bf8 Qd6 Ng8 Ng1 Qd8 Ke1 Bc8 Qd1 Nb8 h4 Ke7 a4 Ke6 h5 Kf5 a5 Ke4 h6 f5 e6 g5 h7 a6 e7 f4 e8B g3 Ra2 g2 Rb2 f3 Na3 g4 Rh4 Nf6 Nh3 g1B Bh5 Nc6 Rb1 Bg7 Bb2 Rf8 h8B Nd5 Kd2 f2 Kc1 Rf7 Bf6 Nc3 Nb5 Na4 Nd4 Nb2 Bg2+ Ke3 Be4 f1B Ng5 g3 Ngf3 Bg2 Nd2 Bf3 Rh3 g2 Bh4 Qf6 Nf5+ Kf4 Rg3 Nd8 Rg6 Be3 Ra1 g1B Kb1 Bd4 Ra2 Bge3 Be1 Bg2 Bhf3 Bh3 Ra1 Bg4 Bh4 Bh5 Ra2 Na4 Rc2 Be5 Rc3 Nb2 Rd3 B3d4 Re3 Bh6 Bg7 Bg5 Bf8 Qh8 Bb4 Qf8 Nf1 Qe7 Bbe1 Qd6 Nd2 Qf6 Bd5 Bd6 Re8 B6e5 Ng7 Ke3 Bc6 Bcg4 Bce4 Bc8 Nf5+
2K5/1p1B2nk/N2bqPP1/Bp1bp3/N1b4B/5n1B/1Q4pP/2Rb1rRn b - - 0 1 illegal: No possible last move, all moves rejected
R3N3/5qpq/np2qp1p/2P1R1r1/1qQ1Rq1P/1rkB1R2/3NnKP1/1B6 b - - 0 1 legal: proof: b4 c5 d4 cxd4 a4 e6 b5 Bd6 a5 Na6 b6 Nb4 a6 axb6 a7 b5 Bf4 Na6 Bc1 b4 e4 b6 Ke2 e5 f3 Bb8 axb8R Kf8 Bf4 Ke8 Be3 d3+ Kd2 Qf6 Bc5 Ra7 Bd4 Qd8 Ke3 d2 Ke2 Bb7 Ra5 Ba8 Ra1 exd4 e5 Be4 fxe4 Ra8 c4 Ke7 h4 Ke6 c5 d5 Kf3 f6 Bd3 b3 Kf2 b2 Bc4 d3 Rh3 Ne7 Bb3 Qf8 Kf1 Nc6 Rc8 Qf7 Kf2 Nd4 Nc3 b1Q Ba4 Qb4 Bc2 Ne2 Qc1 d1Q Rf3 d4 Ra4 d2 Nd5 d3 Bb1 Qdb3 Qc4 d1Q Rb8 Ra7 Ra8 d2 Bd3 Qdc2 Nc7+ Ke7 e6 d1Q e5 Qdc1 Ne8 Qf4 Nh3 h6 Ng5 Rd7 Ne4 Rd5 Nd2 Qba2 Nd6 Rd8 Ne8 R8d6 Bf5 Rd3 Be4 Rb3 Bd3 Qc1 Bb1 Rd5 Bd3 Qe4 Bb1 Qh7 Bd3 Kf8 e7+ Kg8 e6 Rg5 Qd5 Qcc4 Bb1 Qf4 Bd3 Qc3 Re4 Qb4 Re5 Qaa4 Qc4 Qc6 Nd6+ Qc8 e8B Kf8 Ba4 Ke7 Ne8 Qfg6 Nd6 Rc3 Re3 Qf7 Bac2 Rb3 Re4 Kd8 e7+ Kc7 e8R Kc6 Qb5+ Kd5 Bb1 Qcg4 R8e6 Qh3 Ne8 Q3f5 Re3 Kd4 R6e5 Q5e6 R3e4+ Kc3 Qc4+
1K3n2/rN2Qb1P/3P1B2/pp2R3/2kBrPpN/p1br3p/rNR5/1Nn5 b - - 0 1 illegal: No proof kernel
1B2B1K1/7N/Bbpk1q2/pq3PN1/1n1Pp1B1/1RR2bp1/r1P3p1/1q2bQ2 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 f5 a4 fxg4 a5 b6 b5 bxa5 Ra2 a4 Ra3 Nh6 Ra1 Ng8 h4 g5 Qf3 a5 Qg2 g3 Qf3 g4 Qd1 Na6 bxa6 Rb8 Bh3 Rb5 Bf1 Rg5 hxg5 Bh6 Na3 Bg7 Nb1 Bf8 Ke2 Kd7 Ke3 e5 f4 h5 a7 g2 a8B a3 f5 a2 g6 g3 g7 h4 Nc3 h3 Nd5 h2 Ba6 Be7 Qf1 Nf6 g8B Bb7 Bf7 Rh4 Nh3 Qe8 Ng5 Kd6 d3 Qa4 Be8 Qb5 Bb2 Bd8 Bd4 Rg4 Ba7 Bc6 Rb1 a1Q Rb3 Rh4 Rg1 h1Q Rc3 Rf4 B8b7 Qab1 Ba8 Qh6 B8b7 Rh4 d4 Rh1 Nb6 Bd5 Nd7 c6 Nf8 Bb6 Nh7 Qa4 Be2 Qab5 Bg4 Qf8 Qd3 Qf7 Ba6 Qe6 Ke2 e3 Rf1 Be4 Rf3 Nd5 Rb3 Nb4 Rc3 Qa4 Qd1 Bd5 Qf1 Qf6 Rb3 Na2 Kd3 e2 Ke3 e1B Rc3 Qab5 Rb3 e4 Kf4 Bc4 Rfc3 Nb4 Nf3 Qf8 Kg5 Be2 Kg6 Rg1 Nfg5 Bf3 Re3 Qh6+ Kf7 Qf6+ Kg8 Bf2 Qd3 Rd1 Qe2 Be1 Qf1 Rd3 Rb2 Ra3 Rbb3 Ra4 Rec3 Ra2 Bb8+
3rB2q/3BKnk1/2qNn3/R1P3n1/1Q1R1q1q/bPr2N2/1b1BqPb1/4r1B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 Kf7 g4 e5 c4 a5 b3 d5 b6 h5 g5 d3 Ke3 a4 g6+ Kg7 b7 d2 Qe1 d1Q Be2 a3 Bf3 h3 Qe2 h2 Qf1 a2 Qe1 h4 Qd2 h3 Be2 Nd7 b8B Nc5 Qc3 Nh6 Bf1 Nf7 Qd3 Qf3+ Kd2 e3+ Kc3 e4 Kd4 e2 Qd2 e1R Qf4 e3 Qg4 e2 Qe4 Qf4 Be3 Ne6+ Kc3 Ba3 c5 d4+ Kc4 d3 Nd2 Bb7 Ngf3 Qdh4 Rg1 h1Q Rg4 h2 Bh3 Qg2 Kb5 h1Q Nc4 d2 Nd6 d1N Bd2 Nc3+ Kb6 Re8 Qb4 Ne4 Bc7 N4g5 Kb5 Qf6 Rd4 Qff4 Bg4 Rad8 Kc4 Nf8 Bd7 Re3 Kb5 Rc3 Bb8 Kh6 g7 Nfe6 g8B Kg7 Bh7 Qgh3 Bg6 Qh8 Kb6 Q3h4 Bc7 Rg1 Bh5 e1Q Bb8 Qe2 Bc7 Bc8 Kc6 Re1 Kd5 Ne5 Bhe8 Nef7 Rb1 a1B Rc1 B1b2 Ra1 Bc1 Kc6 Bab2 Ra5 Ba3 Nb5 Bcb2 Be5+ Qf6 Bh2 Qff4 Nd6 Ba6 Bg1 Bd3 Qb5 Bf5 Qb8 Bh3 Qb4 Bg2 Ne4 Ne5+ Kd6 Nef7+ Ke7 Q4h6 Ra4 Q1h4 Nd6 Qg6 Ra6 Qge4 Ra4 Qc6 Ra5
b1b4n/1R1R1QbP/1k1KP1nN/r2b4/1BBr2b1/q4P2/N2q1qb1/3R1bR1 b - - 0 1 illegal: No proof kernel
R1b1r2b/qb3B1Q/4b3/3kB2n/1P1qR1PP/2b2Rr1/rN4NK/2Rb1qn1 b - - 0 1 illegal: No proof kernel
1q4R1/3RR1r1/2N3b1/bn1PP1n1/2B1qr1N/PKb5/1R4Qb/rkB1n1rr b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 e4 Kd7 h4 Kd6 d4 c5 Kd2 b5 Kc2 g5 h5 f5 h6 b3+ Kc3 c4 h7 b4+ Kb2 g3 a3 f3 Bh3 g4 Qd3 g2 Nd2 f2 Ne2 f1R Qg3+ f4 Qf2 g1B Ra2 g3 Be6 f3 Qg2 f2 Bg4 c3+ Ka1 c2 Kb2 Nf6 Rh5 Ra7 Qh3 g2 Re5 Bg7 Qe3 Nc6 Rh5 Bh2 Bh3 g1R Bf5 Ne5 Rh4 Nd3+ Ka1 Ne1 Bh3 Bf5 Kb2 Bg6 Nb1 Qb8 Bd2 c1B+ Ka1 Rd7 Rc2 b2+ Ka2 Rf8 h8R Nh7 Kb3 Rf4 Rg8 Ng5 Rc7 Bh8 Rb7 Rg7 Rh7 Rh1 Bc8 Rfg1 Qg3 f1R Be3 Bd2 Be6 Bc3 Nd2 b1N Nf3 Bd2 Qh3 Nc3 Nh4 Nb5 Qg2 Bc3 Bc1 Bd2 Ka4 b3 Bf7 b2 Kb3 Ba5 Rb6+ Ke7 d6+ Kf6 Bc4 b1Q+ Ka4 Bf5 d5 Ke5 d7 Bg6 d8R Qd3 Rd7 Qb1 Ng3 Kd4 Ngf5+ Kc3 Nd4 Qd3 Nc6 Qe3 Qg4 Kc2 Qg2+ Kb1 Re7 Rgf7 Rbb7 Bhc3 e5 Qe4 Kb3 Rg7 Rb6 R1f2 Rbb7 Ra2 Rbd7 Ra1 Rh6 Bh7 Rf6 Bg6 Rff7 Rg4 Rf2 Rf4 Rb2+
2r2k2/3nNRnK/rR1N4/2QPBR1n/2B3br/3Pn1bP/1rn2q1r/r4R2 b - - 0 1 illegal: No possible last move, all moves rejected
4rq2/1Rb4Q/r1b1bk1r/2nP1B2/1BN3PP/1BKN3b/2Rn1r2/r1Bb2b1 b - - 0 1 illegal: No proof kernel
2N1Qb2/6r1/1r4BB/1r2q1b1/1qPq2bN/2rPnB1R/1Rk2P1n/K3Bn1b b - - 0 1 illegal: No proof kernel
1bN1q1B1/k2rRq1r/n1bbrn2/bR3P2/5P2/1PBKQR1n/3n4/q3R2N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 h5 f5 exf5 g6 Bh6 gxh5 Bc1 h4 Ke2 a5 g4 e5 f4 d5 c4 Kd7 b3 Kc7 g5 Kb7 c5 h5 g6 d3+ Ke3 h3 c6+ Ka7 g7 d4+ Kd2 h2 c7 a3 Qg4 h4 Be2 h3 Qg5 a4 Qe7 e4 Qb4 a2 Ba3 e3+ Kd1 d2 Kc2 d1Q+ Kb2 d3 Kc3 d2 Bf1 e2 Qd6 e1B Be2 Bb7 c8R Bc6 Qg6 Bd6 Bg4 Rh7 Qh6 Nf6 g8R Na6 Bb4 a3 Rb8 Qe8 Kd3 Qf3+ Kd4 d1R+ Nd2 Qd5+ Kc3 Qde6 Rb5 Q6f7 Ne2 Rb8 Qf8 Rb6 Rf1 h1N Bf3 h2 Kd3 Ng3 Bc3 h1N Bd5 Nge4 Ng3 Bb8 Rc1 a1Q Rf3 a2 Qc5 Bd6 Rg7 Nhf2+ Ke2 Bb8 Nc4 Nh3 Nh1 Rd3 Qe3 Nd2 Be6 Rd7 Rd1 Qc1 Bd5 a1B Kd3 Qa3 Rb1 Bb2 Rc1 Qa1 Rd1 Ba3 Rb1 Qff8 Re7 Bad6 Bg8 Qff7 Rd1 Bh4 Re1 Bf2 Qe6 Bfc5 Qe5 Bb4 Qe3 Ba5 Rc5 Rb4 Nb6 Re4 Rb5 Re6 Nc8+
2Bkb2B/1n5P/2qrq3/5b1b/r1NN2n1/R1nR4/3PPNr1/1qQNbn1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 Kf2 g5 Kg2 a5 h4 f5 b4 c5 h5 a4 h6 c3 h7 c4 b6 a3 b7 f3+ Kh2 f2 b5 g3+ Kg2 f4 b6 a2 Qa4+ Nc6 b8N c2 b7 c3 Nh3 g4 Qb4 Nf6 Qc4 Ra4 Qd5 Bd6 Nd7 Qe7 b8N Nd8 Qc6 Nb7 Bb2 c1N Qf3 c2 Nc5 Bd7 Rg1 Bc7 Qd5 f3+ Kh1 Qd6 Be5 g2+ Kh2 Qe7 Rh1 g1N Bg2 f1B Ne6 f2 Nc6 Nf3+ Kg3 Nh2 Be4 Bg2 Ncd8 f1B Ng1 Bf3 Nc6 Bh3 Kf2 g3+ Ke1 g2 Kf2 Bh5 Qb5 Nf1 Bd5 Bf5 Nh3 g1R Na5 Ng4+ Kf3 Rg8 Qc4 Rg6 Bh8 Bg3 Nd4 Rd6 Nc3 Be1 Be6 Kd8 Nf2 Bde8 Bc8 Qe6 Rh3 Rg3+ Kf4 Rg1 Rd3 Rg3 Ncd1 Rg1 Rb1 a1Q Kf3 Na2 Rbb3 c1Q Ra3 Qab1 Qc5 Qcc4 Qc6 Qcb5 Qc1 Nc3 Nc4 Qc6+ Ne4 Rh1 Kg2 Rh2+ Kg1 Rf2 Kh1 Rg2 Nef2
rBr1nb2/1n4q1/4r3/1Pb1NPRQ/1n4P1/B2bBr1R/b5B1/n1nk2NK b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 g4 Kf7 f4 Ke6 Kf2 Kd5 Kg2 Kd4 b4 e5 d3 c5 f5 h5 b6 a5 b5 e3 b7 h3+ Kh2 e4 Nd2 Kc3 d4 h4 d5 e2 d6 e1B d7 a4 Bd3 a3 Ngf3 e3 Be2 a2 Kg1 h2+ Kg2 h3+ Kf1 Qe7 d8B Nf6 Bc7 Na6 b8B Ne8 Ng5 Bf2 Bg3 Be6 Bbc7 Nb4 Bb8 Qg7 Rg1 h1B Ndf3 h2 Qd5 Kc2 Qd6 c3 Nh3 c4 Nd2 Be4 Qd4 h1R Qb6 Bd3 Ng5 R1h3 Bgd6 Rf3 Kg2 Rh6 Bf1 e2 Be7 Kd1 Rh1 c2 Nf7 c3 Rh5 e1N+ Kh1 Bc5 Ne5 Bb3 Rh3 Re6 Bg2 Bbc4 Ba3+ c1R Bg5 c2 Be3 Bd5 Rb1 a1N Qd8 Ba2 Qh4 Nc6 Qh6 Nd8 Qh5 Nb7 Rb2 Bf1 Rb3 Nd3 Rc3 Nb4 Rd3 Qf7 Rd6 Bd3 Rd7 Qf6 Rg7 Qf7 Rg5 Qg7 Rh4 Rb1 Rh3 c1N Nb3 Rb2 Nd4 Rc2 Ne2 Ba7 Qh8 Rc8 Ng1 Bac5 Qh5
R3nB1b/7b/2N4P/rrN1b3/Bnb2R1R/nqR1P2r/2rPr3/1n1K1Qk1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 Nc3 d5 Nb1 dxc4 h4 Ke7 b4 Kf6 b6 Kf5 e3 Ke4 b7 f5 h5 c5 b5 a5 b6 g5 Ba3 c3 Bb4 c4 Ra2 g3 Bd6 c2 Bc7 c1N Ne2 Kf3 Ra3 g2 Qb3 g1R Kd1 Kf2 Rh3 g4 Qb4 a4 Ra1 a3 Ng3 c3 Ra2 f3 Ra1 f4 Ne2 g3 Rh2+ g2 Ng3 a2 Be5 Qd3 Bc7 Nf6 Rh3 Ne2 Qe4 Bf5 Bd8 Bg7 Be7 Ne8 Bd8 Nc6 b8R Rh6 b7 Bh8 Na3 Bh7 Rh1 Ra5 Rc1 a1N Nb5 Nc2 Qf5 Na3 Na7 Nb4 Qf7 Rb6 Rh4 Rh1 h6 g1B Qf8 Bh2 Nc8 Kg1 Ne7 c2+ Ke1 Qb3 Ra8 Nc3 Bg2 Ncb1 Ne4 f2+ Ke2+ f1R Nc5 Bg3 Bc6 Rh3 Ba4 Rbb5 Nc6 Bh2 Be7 Bg3 Re1 c1R Qf7 Rc4 Rc1 Bh2 Rc2 Rf2+ Kd1 f3 Bf8 Re2 Qd5 f2 Qf7 Rc3 Qf3 Qe6 Rc1 B2e5 Rc2 Rb3 Rc3 Rb2 Ra7 Qa2 b8R Rc2 Rf7 Qb3 Rf5 f1B Rc8 Rg2 Ra8 Bc4 Rff4 Re2 Qf1+
nr1RNB2/6Kn/PrrN2B1/1qP1P1b1/nN5n/rQ3b1b/6rR/kNb5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 axb4 Bg2 e5 Bf1 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 Kf5 Kc4 e4+ d3 a4 d5+ Ke5 g5 h4 b5 h6 f5 c3 g4 h5 g3 a5 d4 h7 g2 h6 b3 Nh3 g1B Bg2 b2 Qe1 Kb3 c4 b4 c5 d2 Qf1 d1R Qa6 d3 Bf3 d2 Nc3 b1N Qb6 Qd3 Nb5 Nf6 Nc3 Be3 Bg4 f3 Nb5 f4 Na3 f2 Be2 f1N Qc7 f3 Nf2 Nh2 Bb2 Qb5 Qg7 Nbd7+ Kf5 Nc3 Kg6 Rg1+ Ng4 d1B e5 f2 Bd3 f1R Nb1 Rg2 Bc1 Nb6 Qb7 Nf3 Rh2 Bg5 Ne3 Bh3 Nd5 Nca4 a6 Nh4+ Kf7 Bf3 Bg6 Rc8 Bd2 Rg8 h8N Kb2 h7 b3 Nb4 Na8 Qb8 Be7 Qb7 Rgf8+ Kg7 Rc6 Nf7 Rb8 h8N Nh7 Nd6 Re1 Bf4 Re3 Ne8 Rd3 Be3 Bf4 Nf7 Beg5 Nfd6 Rc3 Bd4 Bc1 Be3 Rd3 Ra3 Rc3 Na2 Ka1 Nb4+ Ra2 Qf7 b2 Qb3 Rc2 Bf4 Rg2 Be3 Be7 Bh6 Beg5 Qf7 Rbb6 Rd3 Ra3 Qb3 Rb8 Kg8 Rbb6 Bf8 Rb8 Nc3 b1R Kg7 Rbb2 Rd1 Rba2 Nb1 Rad2 Ne4 Rdd6 Rd5 Rf6 Rd8 Rfe6 N4d6 Rcb6 Ne4 Rec6 N4d6
nn4n1/4kn2/1R3bK1/NPNn1R1N/PN5B/3n2nr/bb2q1P1/1r1Bn1Q1 b - - 0 1 illegal: No proof kernel
Kn1N2r1/Nn1P1b2/1k3P1b/rnn1N2P/nnnBn3/1q1n3Q/N7/R2B1R2 b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 dxc4 Ne2 h5 Ng1 hxg4 Ke2 Kd7 Ke3 a5 Kd4 e5+ Kd5 c5 d4 g5 f4 c3 h4 Kc7+ Kc4 e3 b4 e2 f5 e1N d5 e4 d6+ Kb6 Kd5 c4 h5 g3 Rh3 a4 Ba3 g4 Nd2 e3 Qb3 c2 Ne4 c1N Rb1 c3 Qd1 g2 Rg3 c2 Nd2 e2 Rb2 Be6+ Ke4 Na2 d7 c1N Rgb3 g3 Ndf3 Nc3+ Ke5 Bh6 Kd6 Nf6 Rb1 Rg8 Ra1 Ra5 Qd3 Bf7 Rbb1 Nb3 Bb2 a3 Ne5 Na4 Bd4+ Nbc5 Qe3 a2 Qa3 Kb7 b6 Ned3 b5 e1N Ne2 g1N Nc1 g2 Be2 Ngf3 Bd1 Nb4 Qb3 Nd2 Qh3 Nfd5 f6 g1N Bb2 Ngf3 Bd4 Ka8 b7+ Ka7 b6+ Ka6 Bc2 Ndc3 Bd1 Qf8+ Kc7 N3e4 Bb3 Nc4 Bd1 Be8 Kc8 Ned3 Kc7 Qf7 Kc8 N8c6 b8N+ Kb5 b7 Kb6 Na6 Nb8 Nc7 Qd5 Ne6 Bf7+ Nd8 Qe6 Rb2 Qd5 Rf2 Qe6 Rf1 Qd5 Rb1 a1N Na2 Nb3 Ra1 Qe6 Bb2 Nfd4 Bc3 N8c6 b8N Nb5 Bb2 Nb7 Bc3 Ncd4 Nbc6 Nb3c5 Kb8 Qd5 Na7 Ndc6+ Ka8 Nb8 Bd4 Qe6 Qh2 Qh3 Bg4 Qf3 Qh3 Qd1 Be2 Qb3 Bd1
r3nn2/B1NN1qb1/1P6/1B1QPB1R/2Rqr1pK/rrbB4/r1P1b3/1n4k1 b - - 0 1 illegal: No proof kernel
1qBBrr1R/1rnq3P/4r1P1/n4r1N/N2bn3/RPb4Q/KBb1k2p/B7 b - - 0 1 illegal: No proof kernel
3r4/1q3BbP/nBPb2qp/Nb3Nq1/2P2b2/k2r1N1K/1bQ1n3/nN1R3R b - - 0 1 illegal: No proof kernel
1r2kB2/1q2p2R/1n1BBP1b/2K5/QP1Nq2B/2Rq1b2/rPb1n1q1/2qr1N2 b - - 0 1 illegal: No proof kernel
r5b1/pK1nb1BR/1n4RN/P3Pn2/1Pbq1q2/qQ1q1r2/1N5B/kN2N2q b - - 0 1 legal: proof: g4 e5 d4 h5 dxe5 f5 c4 b5 Nf3 bxc4 Kd2 f4 Ng1 hxg4 Bg2 f3 Ke1 fxg2 Kd2 Kf7 Ke3 Ke6 Kd4 g5 a4 c5+ Ke4 d5+ Ke3 c3 b4 g3 f4 c4 Kd4 g4 h4 c2 e4 c3 h5 Ba6 h6 Bc4 h7 Nh6 a5 Nd7 Be3 c1Q Ne2 g1N Qb3 g2 Rh4 g3 Rh5 c2 Bf2 Nh3 Qf3 g1Q Qb3 Qa3 Nc1 g2 Nd3 c1Q Ne1 Qh1 Bg1 Be7 Bh2 Rf8 h8N Rf6 Ra2 g1Q+ Rf2 Qf1 Rg2 Qc2 Nf7 Qce2 Rg6 Nf5+ Kc3 Qg4 Rh7 d4+ Kc2 d3+ Kc3 d2 Nh6 Nd6 Kd4 d1B Qd3 Bdb3 Qc3 Nf8 Kc5 Nd7+ Kc6 Nf5 Kb7 Qd3 Qc2 Ng5 Qb2 Nf3 Qc2 Ba2 Qd1 Nb6 Qb3 Kd7 e6+ Kd6 Bg3 Ne5 Bh2 Nh4 f5 Qf4 Nc2 Rf7 f6 Nf5 Ne1 Rf8 f7 Ned7 Rhg7 Ke5 Rh7 Bc5 e7 Kd4 e8N Be7 Qd1 Bab3 Nd6 Ba2 Qf3 Bab3 e5 Ba2 Nd2 Kc3 Nb1+ Kb2 Qd5 Ka1 Qf3 Rh8 f8B Bab3 Bg7 Rf8 Qd5 Qdd4 Qf3 Bg8 Nc4 Qd3 Nb2 Bbc4 Nc3 Qdd2 Nbd1 Qe4+ Rc6 Ne3 Qf2 Qed3 Qe2 Nf6 Qf2 Q8d4 Nb1 Nfd7 Qg2 Rf3 Rg6 Qdc1 Qc2 Nf5 Nb2 Qcf4 Qb3
2bQqB1n/p1rB1P1B/2R1P3/1N3Rrn/2b1b2N/q5r1/P3rr2/KB4kq b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 c5 Bb2 cxb4 Bc1 f5 h4 g5 Kd2 Be7 Ke1 fxg4 Bg2 g3 Bh3 g4 Bf1 Bg5 hxg5 Qa5 Bf4 Qc7 Bc1 Qd8 Kd2 Kf7 e4 Kg6 c4 d5 Kc2 h5 Kb2 b5 f4 d3 c5 d2 e5 Kf5 c6 Ke4 f5 Ke3 e6 Kf2 c7 g2 g6 g3 f6 b3 g7 d4 f7 h4 Ne2 g1R Bg2 h3 Bd5 d3 Nbc3 b4 Bc6 g2 Nb1 h2 Qc2 d1R Nd2 Ne7 g8B Rde1 Qc4 Nd7 Kb1 b2 Qg4 Ng6 Qc4 Qe8 Qc2 Nf6 Nb3 d2 Qe4 d1B Na5 Nh5 Nf4 Bb3 Bh7 Re2 Ba4 Bc4 Qd3 Rg8 Qd1 Rf1 Nc6 g1R Ng2 Nh8 Nh4 R1g3 Nd4 R8g5 Nb5 Rb8 Qd8 Rb7 Rg1 h1Q Bac2 Qf3 Rh1 Qa3 Rh2+ Kg1 Rf2 Re4 Rf3 Re2 Rf5 Rff2 Bd3 Bd7 c8B Rc7 Bb7 Bc8 Bc6 Qa6 Bd7 Qd6 Bd2 Qc5 Kc2+ b1B+ Kb2 b3 Bc2 Qe3 Bb4 Qf3 Ka3 b2+ Bd3 Rf1 Bf8 Bc2 Rc1 b1Q Rc5 Qa1 Rf5 Bb1 Rc3 Rff2 Be4 Bbd3 Rc2 Qf1 Kb2 Qh3 Ka1 Qhh1 Rc3 Bb1 Rc2 Qa3 Rc3 Bd5 Rc6 Bc4 Bg2 Be4 Bf1 Rb2 Bd3 Rbe2 Bb1
r3B2N/1r4br/2pK1n1k/2Q1n3/n4RP1/P4b2/qBrP1B2/1rRrBr1N b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 cxd5 f6 Nc3 fxe5 Nb1 e4 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Ke3 b5 g4 h5 f4 h3 a3 h2 f5+ Kh6 d6 b3 f6 b2 d7 h4 f7 h3 Qa4 b4 Qa6+ Nf6 Nc3 b1N Nb5 b3 Bg2 b2 Qa7 Bg7 f8B Nc3 Be7 b1R Bd6 Nc6 Qb8 Rh7 Ne2 Bb7 Bb2 Qg8 d8B Qa2 Na7 Na4 Rf1 h1R Qc8 h2 Rf4 Rhc1 Nb5 h1R Ng3 Rc2 Bc5 Rhd1 Nh1 Rf1 Nd6 Rbd1 Ke2 e3 Kd3 e2 Bf2 e1R Rc1 Re4 Be7 Rb4 Ke3 e4 Nf7+ Kg6 Bf3 Ne5 Nh8+ Kh6 Qf8 Rb3+ Kd4 e3 Bc6 e2 Be8 e1R Bd8 Bg2 Qc5 c6 Bc7 Rb7 Bd8 Ng8 Bdh4 Bf3 Bhg3 Re3 Be1 Nf6 Bgf2 Reb3 Qb6 Nc3 Kc5 Na4+ Kd6 Rb4 Qc5 R4b5 Ba1 Rb1 Bb2
N1Q4q/nN3Nq1/2nbr1k1/2P1Rn2/P1b3K1/1q1B1Rpr/2P1N1b1/r1n3B1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kf2 g5 h4 d5 a4 b5 e4 f5 e5 Kf7 e6+ Kg6 e7 g3+ Kf3 d4 e8N g2 Nd6 d3 Ba3 b3 Ra2 d2 Ne4 b2 Qe1 d1N Qe2 b4 Nf2 b3 Nc3 b1N Nd5 b2 Nd3 Ne7 Nh3 g1Q Nc1 Ndc3 Bg2 Ra6 Qf2 Re6 Rh2 Nbc6 Ne2 Nb5 Nec3 Ba6 Nc7 Nba7 Ne4 Bc4 Bf1 Nc3 Bd3 b1Q Bc1 Qb3 Be3 Ne2 Na8 Nc1 Ra3 Rh5 Qg3 Qd4 Nd6 Qh8 Nb7 Rh6 Qe1 Qg4+ Kf2 f3 Ng1 Qgd4 Kg3 g4 Rh3 f2 Ne2 f1B Bg1 Bg2 Qb4 Qdg7 h5+ Kf6 Kh4 f4 Re3 g3 Re5 f3 Qc3 Rh7 h6 f2 Qd4 f1R Qd8 Re1 Qc8 Nf5+ Kh5 Qf7+ Kg4 Kg6 Be3 Qff6 Bf2 Bd6 Bg1 Rd7 h7 Qfg7 Be3 Rh1 Bg1 Rh3 Ra1 Na2 Rf1 Nc1 Rf3 Bb8 Be4 Rd1 Bd3 Bd6 Nc7 Qe8 Nd5 Na2 Nc7 Ra1 Na8 Nc1 h8N+ Kf6+ Kf4 Qeg8 Nf7 Kg6 Kg4 Q7h8 Be4 Qgg7 Bd3
6B1/3R1q1b/Nq2b1PK/pn3qNP/1r1bnr1k/R5Bn/2QrP1r1/N4N2 b - - 0 1 illegal: No proof kernel
1qnN4/1NB1b2r/1rR1p2R/1P1nqqBb/3NP3/P5r1/6k1/bN1QKn1n b - - 0 1 illegal: No proof kernel
2rk4/5R1n/KP1rRN1n/b2q4/Pq1Q4/1pNn1B2/1PbR1q2/2BbrRb1 b - - 0 1 illegal: No proof kernel
2rb1nBN/1q3n1P/rrq4k/pb4P1/1b2PK2/3RN3/2Q5/rNR1qNBn b - - 0 1 illegal: No possible last move, all moves rejected
Bbrq1q2/3NRpn1/K2b1NP1/3qR1P1/1Qr2nrN/1b3n2/N2Pn3/2Bk4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 axb4 Bb2 e5 Bc1 exf4 a4 Kd7 g4 Ke6 e4 Ke5 Ke2 Kd4 e5 c5 e6 b5 g6 h5 a5 h4 g5 b3 a6 b4 e7 h3 e8N f3+ Ke1 h2 a7 b2 Bg2 Kd3 Ne2 f2+ Kf1 c3 Bb7 b3 Qe1 Kc2 Ba6 c4 Ra4 Rh4 Ng1 Ne7 Ke2 f1N Nc7 Be6 Nh3 Ng3+ Ke3 Ngf5+ Ke2 Nd5 Ra5 Bd6 Qg3 Nc6 Qe3 Nf4+ Kf3 Rg4 Ke4 Ncd4 Rc5 Nf3 Rf1 h1Q Re5 Rc8 a8N Ng7 Rf2 Kd1 Qc5 c2 Nd5 c3 Bb7 Bb8 Ng1 Qhh8 Rh2 Qhf8 Nf6 Bc4 Nb6 Be6 Na3 b1Q Ba8 b2 Re2 Bb3 Nbd7 Qa2 Qb4 b1R Ke3 Ra1 Nb1 Qaa5 Re7 Qd5 Re5 Ra7 Re7 Rac7 Re5 Ne1 Nf3 Rc4 Nh4 Nf3 Ba3 c1N Bb2 Na2 Bc1 c2 Re7 Nc3 Re5 Qb5 Re7 Nfe6 Kd3 Qba5 Re5 Ne2 Ba3 c1B Nc3+ Ke1 Na2 Kd1 Nf5 Bb2 Nh4 Bd4 Bb2 Bc5 Bc1 Bcd6 Rf5 R4c7 Rc5 N2d4 Re5 Qd5 Qc5 Nf4+ Kc3 Ngf5 Kb4 Ng7 Ka5 Nde2 Ka6 Rc6+ Qb6 Rc4 Qb4
nb2R2B/1P1b1Qrn/npP1NR2/5K2/qbNNB2b/q1N4r/rP6/kq6 b - - 0 1 legal: proof: f4 c5 g4 h5 a4 hxg4 d4 cxd4 a5 e5 a6 exf4 Bd2 b6 Be3 Qc7 Bc1 Qb7 axb7 Kd8 Ra3 Ke7 Ra1 Ke8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 c4 Kb4 h4 g5 c5 a5 e3 f5+ Ke5 d5 h5 d3 c6 a4 e4 f3 h6 d4 h7 f2 Qc2 f4 Rh2 a3 Nc3 a2 Qb1 Kb3 Nce2 g3 Rh3 g4 Rh2 f3 Rh1 g2 Nh3 g1B Ng3 d2 Bg2 f1R Ne2 d1Q Ng5 f2 Nf3 g3 Nh4 d3 Bf3 d2 Rh3 g2 Ng3 Bd7 Ne2 Bh2+ Rg3 g1B Nf5 Na6 Nc3 Bb4 Bh1 Nf6 Nd4+ Kc4 Kf4 Qa4 e5 d1N e6 Ne3 Qg6 Ned5+ Kf5 Ndc7 Be4 Qa3 Rb1 a1Q Re3 Bg3 Bd2 Bh4 Qh5 Bh2 Qf7 Rg1 Rf1 Rg7 Re2 B2g3 Bf4 Ra7 Be5 Na8 Re3 Qa4 Ree1 Q1a3 Re2 Rc8 h8N Nh7 Ng6 Rh8 Bf6 Bb8 Nf4 Rg3 Bg7 Rg8 Bh8 Rh3 Rfe1 f1Q Rf2 Rg7 Re3 Qb1 Ree2 Be8 e7+ Kc5 Rf3 Bd7+ Nfe6+ Kc4 e8N Bg5 Nc2 Kb3 Nd6 Be7 Nc4 Bh4 Nd1+ Ka2 Nd4 Ka1 Nc3 Qd3 Rg3 Qdc2 Rg6 Qb1 Rf6 Qaa2 Rf2 Nc5 Bd3 Q4b3 Re2 Ra3 Re1 Qa4 Re5 Na6 Be4 Be8 Nc7 Bd7+ Kf4 Q2b3 Re8 Ra2 Ke5 Qba3 Kf4 Ba7 Nce6 Bb8+ Kf5
n2r1qR1/3b1Qrr/1P4q1/p1r1r1NR/2NN3P/b4K1k/nP1BB3/rN5r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 Ke7 e4 Ke6 h4 f5 c4 g5 e5 d5 c5 a5 c6 d3 b6 d4 c7 g3+ Kf3 d2 Kg2 d3 Nf3 g4 Rh2 Bd7 c8N Na6 Ra4 Ba3 Re4 Qf8 Qc2 d1R Qd2 Nc7 Re2 Rh7 Re4 Nf6 Rc4 Nfd5 Rd4 Nc3 Rc4 Na2 Ne7 Re1 Be2 Rc8 Rc3 Na8 Rh3 Rc5 Qe3 d2 Ba6 d1R Ng1 f3+ Kh1 f4 Bb5 f2 Kg2 f1R Nf3 Rh1 Nc6 Kf5 e6 Rdd5 Qg1 Ree5 e7 Rd4 Ng5 f3+ Kf1 g2+ Kf2 Rd1 Qf1 g1R e8N Rdd5 Be2 g3+ Ke1 Kg4 Bd2 g2 Nd6 Rd4 Nc4 Rdd5 Rb3 Rd4 Rh2 Kg3 Rb5 f2+ Kd1 Rdd5 Nd4 Rd6 Kc2 Rdd5 Kd3 Rd6 Qd1 f1R Qc1 Rff7 Qf1 Rfg7 Qf5 Re1 Qf7 g1Q Rf2 Qg2 Rf4 Qc6 Re4 Kh2 Ke3 Rdd5 Kf3 Qg6 Rg4 Reg1 Nc3 Ra1 Nb1 Re8 Re4 Rd8 Re7 Re5 Re8 Qe7 Rh8 Qf8 Rg8 Re6 Nc6 Rd5 Ne4 Kh3 Nd4 Rg5 Re5 Rc6 Rd5 Rc5 Rf5 Rg4 Rh5 Rgg5 Nc2 Rgd5 Nd4 Re5 Ng5+
r2nkB2/n2pb1b1/2n2N1P/r1rP1RRB/2Nr4/1N1r2Q1/3P1KnN/q1n5 b - - 0 1 illegal: No possible last move
2rR1nQr/1P3N2/1n1K2Pb/nBR2q1N/5r2/B1Pb1nr1/Bp2r1B1/1k4n1 b - - 0 1 illegal: No proof kernel
k3R1qn/NN1B1N1b/nNR1rPn1/1PP4p/2n2q1q/4r3/3nQBn1/K1b5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 Nd2 g5 Nb1 gxh4 Kd2 e5 g4 d5 f4 Kd7 c4 Kc7 Kc2 Kb7 b4 a5 Kb2 h5 c5 h3 g5 a4 f5 h2 f6 d3 g6 d2 g7 e3 b6 e2 b5 e1N Nh3 a3+ Ka2 e4 Bb2 d4 Bc1 e3 Rg1 h1Q Qe2 d1N Qd3 e2 Bg2+ Nf3 Qh7 e1N Qc2 d3 Qd2 Nh6 g8N Ra6 Qg5 d2 Qg6 Bf5 Qg4 Ka8 Rf1 Nf7 Nc3 Bh6 Ng5 Nb2 Nce4 d1Q Ne7 Nh4 Nd6+ Qf3 Be3 Bh7 Bh3 Ng6 Bf2 Ng2 Rfe1 Nc4 Rad1 Re8 b7+ Ka7 Re6 Nfh8 Ngf7 Bc1 Rde1 Qf4 R1e4 Rc6 Qe2 Na6 b8N Ka8 Nb7 Rb6 Bg4 Qh4 Nc8 Re7 Bh3 Qg8 Nc6 Re8 N6a7 Rc6 Kb3 a2 Rd6 a1N+ Ka2 Nb3 Bd7 Nbd2 Ka1 Re5 Re6 Rd6 Re8 Re7 Re6 Rd3 Rd6 Re6 Rc6 Rde3 Nb6+
1n1n2bk/B4p1n/1B2r2q/3PN1n1/n3nb1b/1Bq1P3/KB3QP1/1r1RNR2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 d4 c5 Kd2 a5 Kc3 h5 b4 a4 Kb2 f3 d5 f2 b6 c3+ Ka2 a3 b5 c4 b7 h3 b6 c2 Bf4 c1B Bd6 h4 Bf4 c3 Kb3 c2 Nf3 h2 Be3 h3 Qd2 a2 Bh6 Bf5 Qe1 Qc8 Qd2 Ra6 Qd4 Nf6 Na3 Nh7 Qd1 Bf4 e3 c1N+ Kb2 Ne2 Nc2 Be7 Qb1 Nd4 Qd1 Bh4 Na3 Ndc6 Bb5 f1N Bg7 Ng3 Bd3 Ne4 Bc2 Nd8 Ne5 Qc3+ Kc1 Neg5 Rb1 a1N Qf1 Nb3+ Kd1 Nc5 Kc1 Na4 Qf2 Bd3 Re1 h1Q Rd1 h2 Ra1 Rg8 Kb1 Bf5 Bh8 Kf8 Ka2 Rg6 Rab1 Kg8 Bb3 Re6 Nc2 Ra5 Rf1 Rb5 Ne1 Bg6 Rd1 Bc2 Bc4 Rb1 Bb3 Be4 Nc6 Bc2 Bd4 Bf5 Ne5 Kh8 Bc5 Nf8 Ba3 Bh7 Bc1 Bg8 Bb2 Na6 b8B Nfh7 Bc7 Nb8 b7 Qg1 Nd7 h1N Bb6 Qh2 Ne5 Ng3 Bc5 N3e4 Ba7 Na6 b8B Qh3 Bc7 Nb8 Nc6 Bhg3 Ne5 Qh6 Ba5 Bh4 B5b6
bN1b2r1/n3n3/k4RB1/2B1bnbP/n2P2K1/1Q3RNP/r4p2/q1NN1n1q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 exf4 b4 axb4 Qc2 d5 Qd1 dxc4 Kf2 Kd7 Kf3 Kc6 e4 Kb6 d4 g5 a4 c5 h3 f5 a5+ Ka6 e5 b5 e6 g4+ Kf2 f3 Kg3 f2 e7 f4+ Kh4 b3 Na3 b2 Rh2 b1N Ra2 b4 Kg5 b3 Qe1 g3 Be2 f1N Qf2 b2 Nc2 g2 Na3 f3 Rh1 Bg7 Qg3 f2 Qb3 Bb7 Bd1 c3 Kg4 c4 e8N c2 Nf6 c3 Nb5 Qd5 Ne2 g1N Ra3 Nc6 Ne4 Na7 N4g3 Nf3 Rg1 Nh4 Bh6 c1B Bc2 Qh1 Bg6 c2 Nbc3 Bd2 Nd1 Bg5 Nc1 Be5 Bf8 Nf5 Bc5 Nc3 Rg2 b1Q Rg1 Nd2 Re1 Bg2 Re4 Na4 Rf4 Nge7 Rf3 Nd6 Rf6 Bb7 Qe6 Rag8 Raf3 Ba8 Qb3 Nf1 Bb4 Kb5 a6 Ndf5 Bc5+ Ka5 Qa3 Qa1 Qb3 Nac6 a7 Ka6 Rc3 Rd8 Re3 Rhg8 Rf3 Rb8 Qe3 Rb2 Qb3 Bb7 a8N Ra2 Nb6 Na7 Nc4+ Bc6 Bd6 Ba8 Na5 Bh4 Nc6 Bg5 Nce2 c1B Bc5 Bcd2 Nc1 Ba5 Qc3 Bac7 Qb3 Bd8 Nb8+
1Bn2N1b/4P2b/1q2R1bk/2Rprqq1/b2Q1rPR/3q2RP/8/nNK2Bb1 b - - 0 1 illegal: No possible last move
1rQ1nR2/1rPq4/1b3RK1/p1B1r1bn/2r1B1B1/PBr5/N2Pb3/1k1Nbq2 b - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g5 Qf3 gxf4 g5 Qd5 Qd1 Qd8 Qg4 hxg4 Kf2 Kd7 h4 Ke6 c4 Ke5 a3 Kd4 h5 e5 g6 a5 h6 f5 h7 b5 g7 b4 c6 e3+ Ke2 g3 Kf3 g2 c7 e4+ Ke2 b3 c5 f3+ Kd1 e2+ Ke1 Kd3 Kf2 Kc2 Ke3 e1R+ Kf4 b2 c6 f2 Ne2 g1B Ke5 e3 Bg2 f1R Rh3 f4 Bd5 f3 Rh4 f2 Rh2 Nf6 g8B Nh5 Nf4 e2 Nh3 Bg4 c8B Qd7 c7 Be7 Nc3 b1R Na2 Rb7 Bb2 Bg5 Bd4 Ra6 Bf3 Rc6 Bc5 Rc1 Bf7 e1B Bb3+ Kb2 Bh1 Be2 Be4 Rc4 Rh1 Re6+ Kf5 Re5+ Kg6 Rf8 h8Q Rf3 Rc1 Rfc3 Rc2+ Kb1 Rh2 Qd8 Bcf5 Nd7 Bg4 Ndf6 Rh1 Qd4 Qc8 Qd7 Rh2 Ne8 Rg2 Rd3 Rg3 Rdc3 Rf3 Bh2 Rf8 Bhf4 Bef5 Be3 Bd3 Rh1 Be4 f1Q Nf2 Rb8 Nd1 Rh4 Qb7 Rb4 Qc8 R4b7 Be7 Bb6 Bb4 Rhh3 Bc5 Rc4 Rc3+ Ka1 Rd3 Kb1 Rd6+ Rd3 Bef3 Rde3 Rdf6 Rec3 Be4+
NB6/1r2rb1N/2k3qR/q1bBnnr1/2BP1q1P/Q2Rr1B1/bpP5/2b3K1 b - - 0 1 illegal: No proof kernel
4qN2/1rB1b1N1/QB5p/q3q3/1nP4b/R1q2n1R/1R1knPKP/r2b1n1R b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 e5 g5 e4 g6 fxg6 e3 g5 Bc4 g4 Bd3 exd3 Kf1 Kf7 c4 Kf6 b4 Ke5 e4 a5 b6 g5 b7 d5 b5 a4 b6 g3 Qf3 g4 Bg5 a3 Nc3 h6 Bd2 g2+ Ke1 a2 Qf7 g3 Rb1 a1B Rb5 Nf6 Na2 Rh7 Nb4 Bg4 Bc3 Be7 Nh3 g1N Kf1 d2 Na6 d1Q+ Kg2 Qb3 Ba5 d3 Be1 Kd4 e5 d2 e6 Kd3 Nc7 d1Q Rc5 d4 Re5 Qe2 Bb4 Nd5 Rh5 Qe8 Ba5 Nf3 Bd2 Qc3 Qf6 Na6 b8B Qe5 b7 Nab4 Bf4 Bb2 Be3 Ra1 Rh4 Ke2 Rh5 d3 Ng5 d2 Rh3 d1Q Bb6 Qda4 Qg6 Rg7 Nh7 Kd2 Nf8 Qa5 Qf6 Ba3 Qg6 Bh4 e7 Bh5 Nce6 Rf7 B8c7 Rh7 b8R Bg4 Rg1 Ne3+ Kh1 Nf1 Ng7 Nd4 Kg2 Bd1 Qf6 Ne2 Rh1 Nd3 Kf3 g2 Qe6 g1N+ Kg2 Bc5 Qc8 Bd6 Qa6 Nf3 Rb7 Nb4 Ra7 Qd7 e8R Bde7 Rb8 Qe8 Qb7 Qac5 Ra3 Qa5 Qa6 Bd6 Nh5 Rd7 Ng7 Bde7 Bd8 Ra7 Bdc7 Rb7 Bc5 Na2 Bd4 Ra7 Rbb3 Rb7 Bdb6 Nb4 Rb2+
3N2K1/1nqbk3/P1Rpr3/7R/1BRrB1Qb/2n1nPNR/rr2P1q1/1b3n2 b - - 0 1 illegal: No proof kernel
b3rq2/4qRP1/2RP4/1P1RNnnr/1r3R1k/6rB/1Bpq1b2/QNqn3K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 Ke7 g4 Kf6 Kg2 Kg5 b4 c5 e4 f5 d4 h5 d5 a5 b6 c3 b7 h3+ Kh2 h4 e5 a4 e6 a3 e7 c4 e8R c2 b5 c3 Re1 a2 Re2 Rh5 Ba3 c1Q Qc2 f3 Qd2+ f4 Bg2 f2 Bc5 f1R Be4 c2 Nc3 Nh6 Nb1 Qe7 Bd6 Nd7 b8R Rf3 Bb4 Nf6 Qd1 Rg3 Rb7 f3 Qd4 f2 Ra7 f1Q Qe5+ Nf5 Re1 Bb7 Nc3 Re8 Nb1 Ba8 Bg2 Nh7 Ba3 Qd2 Bb2 Bg7 Qc3 Bd4 Re6 Bf2 Rc6 Qfc1 d6 Qf8 Qa3 Qce1 Nc3 Qee7 Rf1 a1R Nb1 Ra2 Qc3 Ra4 Qd4 Rb4 Nf3+ Kg6 Rhg1 Ng5 Kh1 h2 Ne5+ Kh6 Rca6 Nh7 Rc7 Qd3 Qa7 Be3 Rf4 Kg5 Rd7 Qd8 Rf7 Qde7 Rd1 Bf2 Rd2 Qc3 Rd5 Qd2 Bf1 Rh3 Kg2 Rhb3 Bc3 h3+ Kf3 Kh4 Rc6 Ra3 Rcc4 Rab3 Qa1 Ra3 Ke4 Rab3 Bb2 Rg3 Bg2 h1N Bf1 h2 Bh3 Bd4 g5+ Rg4 Kf3 Nf2 g6 h1Q+ Bg2 Qhc1 g7 Nd1 Rc6 Bf2 Bh3 Qd4 Ke2 Ng5 Kf1 Qde3 Ba3 Qed2 Bb2 Bg3 Kg1 Be1+ Kh1 Bf2 Rf3 Rg3 Rf4+
nNr5/R1np2r1/b1r1b3/K4N1r/1BPB4/2q2Pq1/b2P2k1/qQBBqR2 b - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 c5 g5 cxb4 g6 hxg6 Qf3 g5 Qd1 g4 a3 b5 Bh3 b3 Ke2 e6 Ke1 b4 Bf1 b2 Bb5 b3 Bf1 Bb4 axb4 Qb6 Ra3 Qc7 Ra1 Qd8 c4 Ke7 h4 Kf6 h5 Ke5 b5 Kf4 h6 a5 f3 Kg3 b6 g5 h7 a4 b7 a3 Be2 e3 Ra2 e5 Ra1 a2 Nh3 e4 Rh2 Nf6 Bf1 e2 Rf2 Nd5 Ng1 Nb6 Rh2 Na6 b8B+ Nc7 Rh1 Ba6 Nc3 b1B Na4 b2 Nc5 Qf6 Qb3 Qc3 Ba7 Rac8 Qb5 Nba8 Qb4 Bc2 Qb5 b1B Rh5 Bb3 Nb7 B1c2 Rb1 a1Q Nd6 Ba2 Bc5 Bd3 Rh6 Bc2 Re6 Kh2 Qb8 g3 Nf5 g2 Bb4 g4 Rb6 g3 Rb7 Bd3 Ra7 Bc2 Nh3 g1R Nf2 g2 Ng4+ Kh1 Ne5 Kh2 Kf2 e1R Nc6 Kh1 Be2 e3+ Kg3 Bd3 Bd1 e2 Kf2 Be4 Qb5 Bd5 Nb8 Be6 Qb7 Rhg8 h8B Rg7 Qb5 Kh2 Qb7 Rh1 Qe4 Reg1 Qc2 Rg6 Bd4 Rg7 Qd3 Re1 Ke3 g1Q+ Ke4 Kg2 Ke5 Rh2 Kd6 Rh5 Kc5 Qh2 Rb3 Qg3 Qb1 Qcb2 Re3 Qc3 Re4 Reh1 Rh4 e1Q Rh3 Rf1 Rh1 Rf2 Rf1 Re2 Qc2 Re4 Qd3 Reg4 Qb1 R4g6 Qc2 Bf7 Qe4 Rd6 Qb1 Be6 Ba5 Qce3 Kb4 Qec3+ Ka4 Rb6 Bb4 Rc6 Ka5
k1B3Kb/QnrR3r/1Br2PP1/1q2r1P1/nBp2n1N/2N3R1/b2nb1B1/5b2 b - - 0 1 illegal: No possible last move, all moves rejected
5B2/r2bPR2/nkrB4/1q1B3r/Qp3b1B/NnPnRKnP/3b4/2r1bN2 b - - 0 1 illegal: No proof kernel
1R2Kb2/P1B1bR1p/k1n5/bb1qb3/1Nq1b2r/3P1bQP/4n1B1/NbN3N1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 f5 b5 fxg4 Bh3 d3 Kf1 d2 Kg2 a6 Kg3 axb5 Bf1 b4 Kg2 Ra4 Nh3 Ra6 Ng1 Ra8 c3 d5 Ba3 b5 Qa4 d1B Qa5 d4 Bc1 d3 Qa3 d2 Qb3 Ra6 Qa4 Rd6 Qb3 Rd3 exd3 Bb7+ Kg3 Ba6 Kg2 Bc8 Kg3 Kd7 Kf4 Kc6 Kg5 Kb6 f4 e5+ Kh5 g5 a4 g3+ Be2 e4 h3 e3 c4 g4 f5 g2 a5+ Ka6 f6 g3 c5 Qd5+ Kh4 Nc6 f7 Nd4 c6 Ne7 c7 Bd7 c8N Nec6 Na3 Rg8 Bf3 e2 Bg4 e1B Ne7 Bf3 Rb1 d1B Bf4 Ne2 Bc7 Be4 Nc2 Bd2 Qa2 b3 Na1 b2 Bf3 b4 Qa4 Qc4 Nd5 b3 Kh5 Be7 f8N Rg4 Ng6 Bc3 Qa2 Be5 Ngf4 Bf8 Qa3 Rh4+ Kg5 Be8 Qd6 Bd7 Rc1 b1Q Rc2 Be8 Rb2 Qa2 Rb1 b2 Nb4+ Ka7 a6 Qd5 Rc1 b1B Rc2 Qac4 Rb2 Ba4 Rh2 Bh5 Rh1 Bb5 Rb3 Ned4 Nfe2 Bg4 Nc1 Ne2 Bb8+ Kb6 a7 Bh5 Nbc2 Ka6 Bc7 Bf4+ Kf6 Bd2 Bg4 Ba5 Be6 Bg4 Kf7 Bgf3 Nb4+ Kb7 Qc5 Bg4 Rc3 Qd6 Rb3 Ba6 Bd5 Bef5 Nf3 g1B Nd4 g2 Ke8 Bh2 Rf1 g1B Nf3 Be5 Qf2 Qdc5 Be4 Q5d5 Qg3 Bgc5 Ng1 Bce7 Bg2 Be4 Rf7 Bgf3 Nba2+ Bb5 Qf2 Ka6 Qg3 Ba4 Rb8 Bb5 Nb4+
1n3k2/5p1P/2r1Q1nN/2n2r2/R5KP/NbB2PRr/3nrbb1/Nn1Bb1N1 b - - 0 1 illegal: No proof kernel
R3q1B1/N1q4b/1r1n1q2/2Pp1RPN/n1r5/1k2Pr1B/p2B1b1K/1QB1b2n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 bxa4 Ra3 e5 Ra1 exf4 Kf2 Ke7 c4 Kd6 b4 f5 g4 a5 Kg2 h5 g6 h4 b5 Kc5 g7 Kb4 g5 d5 b6 a3 b7 a4 Be3 h3+ Kh2 f3 Bf4 f2 Bg2 f1R Be4 d3 Ra2 d2 Be5 f4 Bd4 f3 Rc2 f2 Be3 a2 Bd4 a1B Qc1 d1Q Nd2 a3 Bf6 a2 Bf5 Nh6 g8B Bc5 Kg3 h2 Bfe6 Nf7 Bf5 Rh4 Ngf3 Na6 b8B Qc7+ Ne5 Nd6 Bh3 Qe1 Ne4 Bc3 Nc6+ Kb3 Na7 Bf5 Be7 Bg6 Nf6 Bh7 Nh5 Re4 Rg1 h1N+ Kh2 Bb6 Rg3 Nc5 Rf3 Na4 Rf5 Be3 Bf6 Rf4 c5 Rc4 Qa1 Bb4 Bb2 Ba5 Bc1 Bd4 Nc6 Ra6 Na7 Rb6 Rd2 Rg1 Rd1 f1Q Rd3+ Bac3 Re3 Rg3 Re8 Bf2 Ref8 Rf3 e3 Qee2 Qb1+ Qb2 Rd8 Bce1 Bd2 Qd3 Rc8 Qe4 Bc1 Qf7 Bc7 Qee8 Ra8 Qfd7 Bd8 Qc7 Bf6 Qe4 Bc3 Qe8 Qd3 Qa1 B3d2+ Qc3 Qe4 Qf6 Qb1+
4R3/2QnR1q1/2b1p1r1/qN1P3K/1Pb3N1/1BNPB3/1qrrn1pb/2N2n1k b - - 0 1 illegal: No proof kernel
5nNk/1QK2N1B/Pn1p1p2/B1n1q1B1/qB1q3R/rrRPP2b/2br2b1/8 b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 a5 Ba3 axb4 Bc1 h5 c3 hxg4 Kf2 b5 Nf3 b3 Ke1 b4 Ng1 b2 Na3 b3 Nb1 Bb4 cxb4 Rh5 Nc3 Rh4 Nb1 Rh8 Kf2 Kf8 h4 g5 a4 Kg7 b5 c5 a5 g3+ Kf3 d6 Ke4 c4 Kd5 f6 d3 f3 b6 c3 b7 g2 h5 f2 Nf3 g1Q Qc2 g4 Rh3 g3 Bg5 g2 Rh4 Qe7 Ne5 Nd7 Kc6 Nf8 b8B Bh3 Nf7 Qe5 Ra3 Ne7+ Kc7 Nc8 h6+ Kg8 Qc1 c2 Nc3 b1B Qb2 c1N Nd5 Nb6 h7+ Kg7 Bd2 Bc2 Ne7 Qgh2 Be1 g1Q Ng8 Qhf4 Bg2 f1B Be4 Qgd4 e3 Bfg2 Bb4 Qg4 Qb1 b2 Rc3 Nb3 Qh1 b1R a6 Nc5 Ba7 Rb8 Bg6 Ra1 Ba5 Bf1 Qb7 Ra3 Be4 Bfg2 Bf5 Qa4 Bb4 Nc8 Bb6 Qgd4 B6a5 Nb6 Be4 Qf5 Ngh6 Rg8 h8B+ Kh7 Bg7 Rh8 Ng4+ Kg8 Bh6 Qfe5 Bg5 Rh6 Nd8 Kh8 Bh7 Rg6 Nh6 Rg8 Bf4 Rg5 Ng8 Rf5 Bg5 Rf2 Re4 Rd2 Rh4 Ncd7 Qf3 Nc4 Bc5 Rbb3 Qb7 Ncb6 Bcb4 Nc5 Nf7+
2KN1nbr/6Q1/N4k1r/2P1NPN1/nB3Rp1/bbn2b2/R1Pqb1pr/1B6 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 g5 c5 dxc5 h6 Be2 hxg5 Bf1 g4 Ke2 Kf7 Ke3 b5 Kd4 e5+ Kd5 g5 a4 e3 h4 g3 f4 g2 h5 g4 a5 e2 a6 e1R f5 b3 a7 b4 h6 e4 h7 b2 Bc4 b3 Be3 Bh6 Kd6+ Kf6 Nc3 b1B Rh4 b2 Bf2 e3 Ba2 e2 Bc4 Ne7 Qd5 Ba6 Rh2 Ba2 Bd3 b1B Qc4 Nd5 Nh3 Bc1 Ng1 Ba3 Nf3 Rh1 Be1 Bb3 Ne5 B1a2 Rh3 Rh2 Rf3 Qa5 Bd2 e1N Rf4 Qb4 Be4 Nd3 Qd4 Nb2 Bf3 Na4 Ne4+ Kg7 Qc3 Be2 Ng5 Kf6 Qb2 Qd4 Bb4 Ndc3+ Kc7 Qd2 Bd5 d6 Bg8 d5 Kd8 d4 Kc8 Bb1 Ra2 Nd7+ Kb7 Re8 a8N d3 Nc7 Re6 Na6 Nf8 Kc8 Rd6 Ra1 B1a2 Be6 Rg8 h8N Rb6 Nhf7 Rgh8 Nd8 Rd6 Bd7 Bg8 Be6 Bb3 Rb1 Qd1 Qa1 d2 Rb2 Qc1 Bd5 d1B Ra2 Qd2 Ngf7 Ke7 Kc7 Bbc4 Rb2 Bf1 Ng5 Nb1 Nef7 Rdh6 Kc8 Bf3 Be6 B1e2 Bd5 Bb5 Bb3 Bbc4 Ba2 Nbc3 Bb1 Bb3 Ra2 Nd5 Qg7 Ndc3 Qh7 Kf6 Ne5 Bb2 Qd7 Ba3 Qg7+
4QKB1/rNqb1n2/4P1k1/1Ppq1B2/1bn3Br/p3nBR1/2PNr2r/1R5r b - - 0 1 illegal: No possible last move, all moves rejected
rb5N/1b1N4/1Qnp1KP1/1R3bBq/2rk1Nq1/Pr1PN1n1/bb3RBp/8 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 a5 c3 axb4 Rh2 bxc3 Rh3 Ra7 Rh1 Ra8 Ke2 Kf7 Kf3 Kf6 Kf4 h5 g4 e5+ Ke4 b5 f4 c5 a3 b4 d3 c4 Qf3 h3 Nd2 c2 Bg2 c3 Bf1 h4 Qe3 b3 Qb6+ Bd6 Qc7 b2 Qc4 b1B Qa6 Qa5 Be2 Ba2 Nb1 h2 Bd2 c1R Bf1 c2 Bg2 Nc6 Nc3 Nh6 Qb5 Bc7 Nd1 d6 Qb2 Bce6 Ne2 Rhe8 Qb3 Reb8 Qb2 Bc8 Qd4 Rb5 Qb6 Bb8 Rf1 Bce6 Rf2 Bc8 Be1 Bb7 Rb1 h1B Bf3 h3 Bd2 h2 g5+ Ke7 f6+ Ke6 f7 Nf5 Rb4 Bg2 Rb3 Bh3 Bg2 Bg4 g6 Bh3 f8N+ Kf6 Ne6 Ng3+ Kf3 Rb4 f5 e4+ Kf4 Qa4 Nd8 e3+ Be4 Rb1 Nf7 c1B Nh8 Rd4 Rb4 Rb3 Rb5 Bb2 Bc1 Qc4 Bd2 Qe6 Bc1 Rc4 Bd2 Ke7 Kg5 Qc8 f6+ Ke6 Bd5+ Ke5 f7 Bd7 f8N Bh3 Nf4 e2 Nh5 e1Q Be3 Qe6 Bg2+ Qd5 Bc1 Qe4 Bd2 Qc5 Nd7+ Kd4+ Kf6 Be6 Bh6 Qe2 Nf4 Qg4 Qa6 Qch5 Ne3 Bf5 Bg5 Bc1 Qa5 Bb2 Qb6+
6b1/n1R3N1/NPn3q1/2q1p3/K1P2kRP/b1QB2Nr/r2r1np1/r1B1Nr2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 cxd4 Nc3 h5 Nb1 hxg4 Kd2 Kf7 f4 Ke6 c4 Kf5 Kc2 d5 Kb3 a5 h3 g5 b6 e5 b7 e3 Qf3 a4+ Ka2 a3 Kb3 d3 Rh2 e2 Qf2 e1R Qa7 g3 Nf3 g4 Rd2 d4 Ng5 g2 Qc5 g1Q Ne4 a2 Qa5 g3 Rg2 d2 Bd3 d1R Qc3 Qf6 Nbd2 Nc6 b8N Nge7 Nf3 Rd2 Na6 Qg6 Ka4 Rf1 b4 Be6 b5 Na7 b6 Nec6 Ne1 Qe3 Rg1 Bg8 Rg2 Ba3 Rg1 Rh2 h4 Rh3 Rg2 Rh7 Rg1 Rd7 Rg2 Kg4 f5 Kf4 f6 Rd6 f7 Rd5 Rb1 a1R f8N Ra2 Rd2 g2 Ng3 Rd6 Rb5 Rdd8 Rc5 Rd6 Rb2 Rd5 Rb3 Rdd8 Be4 d3 Bf5 d2 Bd3 d1N Ne6+ Kg4 Ng7 Kf4 Bb1 Rdd2 Bd3 Ne7 Rc7 Nf2 Rb5 Ra1 Rd5 Qc5 Rd6 Nec6 Rf6+ Kg4 Rf5 Raa2 Rh5 Kf4 Rg5 Rd8 Bb2 Rd1 Be2 Rda1 Bc1+ Rdd2 Bd3 Qh7 Nf3 Qh6 Ne1 Qg6 Rg4+
kbq1R1q1/4NN1p/2N1RbB1/1b1p1rr1/n4N2/Kb1rPQ2/4P2P/1B1n1b2 b - - 0 1 legal: proof: g4 e5 b4 f5 b5 fxg4 b6 a5 Bb2 a4 Bg2 a3 Nf3 axb2 Bf1 e4 Ng1 e3 dxe3 cxb6 Bg2 b5 Bf1 b4 Kd2 b5 a4 d5 c4 Kd7 Kc2 Kc6 Kb3 Kb7 f4 g5 a5 g3 f5 g2 f6 g4 c5 g3 f7 Nd7 Qc2 Bd6 f8N Nh6 Qc3 Bb8 Qc4 Nb6 Nd7 Ng4 Nh3 g1R Nf4 Rf8 Ka2 b3+ Ka3 Rf5 Ne5 Qg8 Neg6 Nf2 Nc3 b1B Na2 b2 Qd3 Bc2 Nb4 b1Q Bh3 g2 Ne5 Bb3 Qe4 Nd1 Nf7 Na4 Nc6 Qc2 Qf3 Ra7 a6+ Ka8 Ra2 Rc7 a7 Ba6 Nh8 Rg7 Nf7 Rgg5 Ra1 Rf1 Rb1 g1B Bg2 Bf2 Rg1 Bh4 Bh3 Rg7 Rg6 Bf6 Rh6 Rgg1 Rg6 Rfg5 Bf5 Bc8 Bd3 Bh3 Ra1 Qc3 Bb1 Rf5 Ra2 Rgg5 Rc2 Rh1 Rh6 Bf1 Ra2 Be7 Re6 Qch8 Rc2 Bf6 Rc4 Qc8 Rce4 Qhg8 Re8 Rhg1 R4e6 Rh1 Ncd8 Rhg1 c6 R1g4 c7 Rh4 Ng6 Rd4 Nf4 Rd3 Nc6 Qd7 c8N Qd8 Kb4 Qd7 N8e7 Qc8 Ka5 b4 Kb5 Bc2 Ka5 b3 Kb5 b2 Kb4 Bb3 Ka3 Kb7 Ba2 b1B a8B+ Kb6 Bb7 B1c2 Bb1 Bc4+ Kb4 Bb5 Ba6 Bb3 Ka3 Rd2 Ncd8+ Ka7 Ndc6+ Ka8 Nb4 Bd7 Bad3 Bb5 Be4 Rd3 Nbc6 Re5 Bg6 Ref5 Qh1 Rc3 Qe4 Rd3 Qf3
1r1BNn1q/k5Qp/1p4P1/1K1nPbqR/n1B1q3/1B1N2B1/2r2RqP/q2b4 b - - 0 1 legal: proof: d4 e5 b4 exd4 f4 a5 f5 axb4 f6 gxf6 Qd3 f5 Qd1 f4 c3 d5 Bb2 d3 Qc2 d2+ Kf2 d4 Bc1 d3 Qb3 Bg7 Qd1 Bd4+ cxd4 Bg4 Nc3 Be6 Nb1 Bc8 e4 Kd7 a4 Kc6 g4 Kb6 e5 c5 g5 f5 a5+ Ka7 d5 b3 a6 f3 Ke3 b2 g6 f2 d6 f4+ Ke4 b6 Kd5 c4 d7 c3 Kc4 f3 Qa4 d1N Kb5 c2 Bg5 c1Q Ra3 d2 Nc3 Nf6 Ne4 Nd5 Bc4 f1Q Bh4 f2 Nd6 Qg2 Ne8 f1Q Nh3 b1Q+ Qb3 Qfg1 Nf2 Qbe4 Nd3 Nb2 Bg3 d1B Ra4 Qf6 d8B Bf5 Qc2 Qge3 Rf1 Nd7 Rf2 Rc8 Qd2 Qe1 Qh6 Qcg5 Qg7 Qeh1 Ra3 Na4 Bb3 Rc2 Bc4 Kb8 a7+ Kb7 a8B+ Ka7 Bb7 Nf8 Rc3 Qhe1 Rb3 Qc3 Rb4 Qa1 Bb3 Qef3 Rh4 Qe4 Rh5 Rg8 Qh6 Qg7 Bc8 Qh8 Be6 Rg7 Bg8 Rb7 Bf7 Rb8 Bg8 Nb4 Bgc4 Nd5 Qg7+
4n1NB/rk2pq1R/q1rRP2p/b1b2R2/q1NPbB1b/6Pn/1b1RK3/4Q3 b - - 0 1 legal: proof: h4 f5 c4 d5 e4 dxc4 a4 g5 e5 gxh4 Bd3 b5 Be4 fxe4 axb5 Qd4 Qf3 Qd7 Qd1 Qd8 d4 Kd7 f4 a5 b4 c5 b6 Kc6 f5 e3 g3 c3 e6 c4 b5+ Kb7 f6 h6 f7 h3 Bd2 c2 Bb4 c1B Rh2 e2 Ra3 a4 Rh1 c3 Nd2 h2 Qb3 c2 Ne4 Nc6 Nf3 Qe8 Qa2 Bg7 f8B Bb2 Qb3 c1B Nfg5 Nf6 Nh7 Ra7 Qc3 Ne5 Rf1 h1Q Bd6 Qf7 Nd2 Ng6 Bf4 Ne8 Nf6 Qc6 Ra2 a3 Ng8 Bf6 Bg7 Bh4 Nc4 Qd6 Kf2 e1B+ Ke2 Bcd2 Qe3 Ba5 Qf2 Bec3 Qe1 Bcb4 Bf6 Bc5 Rf3 Ba1 Rd2 a2 Rf1 Bb2 Rf2 Kb8 b7 a1Q Rf3 Kc7 b8R Bb7 Rd8 Be4 b6+ Kb7 Rf1 Qc6 Rd6 Qaa4 Bg7 Ne5 Bf6 Nd3 B6e5 Nf2 Bg7 Ka6 b7 Nh3 b8R Qb6 Ra8 Kb7 Rf3 Qa6 Rf2 Rh7 Bh8 Rg7 Rf3 Rg5 Rc8 Bcb4 Rcd8 Rc5 Ra8 Rc6 Rb8+ Kc7 Rb5 Kc8 Rf5 Kb7 Rf2 Qf8 Rf7 Bc5 Rh7 Qf5 Bg5 Qf6 Rf5 Qf7 Bf4
1BqB4/4pB1r/2RPP1q1/n2KnkN1/1B1pr2b/Q4qr1/2bN2PR/4qq2 b - - 0 1 illegal: No proof kernel
r2qBnq1/3Pq1np/1R1k2B1/r2bN3/np2n1R1/P1bN2nK/1P6/R2Q2R1 b - - 0 1 illegal: No proof kernel
KNb5/Qp1nB1N1/b3kP2/R2R3r/1NP4r/5p1q/B5Pb/qrNrn2r b - - 0 1 illegal: No proof kernel
kbrN4/rN1B2nq/3R1b2/5P2/n1qpnq1N/3P1RN1/pr4P1/r1BQ2K1 b - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b6 b5 Ba6 a5 bxa5 b6 Bb5 cxb5 a4 f4 a5 Kf2 e5 b7 c5 b6 h5 f5 d5 d3 Kd7 Ne2 Kc6 Nf4 d4 Qe1 c4 Ng6 a3 Be3 a2 Qd1 h3 Nh4 h2 Rg1 h1N+ Ke1 a4 Na3 c3 Ke2 c2 Qd2 c1Q Bf2 e3 Nc4 e4 Qc3 a3 Qc2 Qc7 Qc3 Na6 b8N+ Kb7 Rb1 a1R Qb2 a2 Qa3 Ra7 Na5+ Ka8 Nb7 Q1c4 Nd7 Be7 Qd6 Bf6 Ke1 e2 Rc1 Nc5 Be3 Nf2 Qe6 Na4 Ndc5 Qf4 Rh1 Rb1 Rh3 Rb4 Rf3 Rb2 Ng6 h4 Qd7 h3 Nh4 Nc3 Qa4 h2 Qd1 h1Q Rc2 Na4 Bc1 Nh3 Rc3 Ng5 Kf2 e1R+ Be2 Ne6 Rb3 Qh3 Rb5 Rh1 Ra5 Ng7 Ra6 Rh2 Kg1 e3 Ng6 Qh5 Ne4 Qh7 Ng3 Rh5 Nh4 Rh6 Qd2 Rh5 Bd1 e2 Bb3 e1B Qd1 Bb4 Bc2 Bd6 Bb3 Bb8 Bc2 Nc3 Ba4 Rh6 Bd7 Na4 Qd2 Bfe5 Qd1 Nf6 Ra5 Rd8 Rd5 Ne4 Rd6 Bf6 Qb3 Rg6 Be6 Bc7 Nc5 Rc8 Rd7 Rb1 Qd1 Bfd8 b7+ Kb8 Rd5 Ra1 Bd7 Rb6 Rd6 Bf6 Kh1 Raa6 Kg1 Ka7 b8N Rb2 Nc6+ Ka8 Nd8 Bb8 Ncb7 Ra5 Bc6 Ra7 Bd7
B2nK3/1q1N4/qbk5/3n1pn1/b1Pr1Bq1/PN1N1P2/1R2pN2/b2qRrQ1 b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 c6 d5 cxd5 gxh5 dxe4 Ba6 e3 Bb5 Qa5 Bf1 Qd8 Ke2 d5 Kf3 Kd7 Kf4 g5+ Kf5 e5 c4 b5 h4 b3 a3 b2 h6 b4 h7 d4 h5 e2 h6 e1N Bd2 e4 Qc1 d3 Ra2 b3 Qd1 g4 Qc1 e3 Ke5 f5 Ne2 g3 Ba5 d2 Nf4 d1Q Nd5 e2 Nf4 g2 Ra1 g1B Nh3 Ne7 Kf6 Nf3 Kf7 Nd5 Bc7 Kc6 Ra2 Qg5 Ke8 Qg4 Bg2 Ng5 Nd2 b1Q Bf4 b2 Nb3 Qa1 Be4 b1Q f3 Qf6 Rb2 Bb6 Nf2 Ba6 Rf1 Bb5 Re1 Ba4 Qe3 Rg8 h8N Qd6 Ng6 Bg7+ Nf8 Ra7 h7 Rd7 Ra2 Ba1 h8N Qf6 Nf7 Rh8 Bd3 Rh1 Be4 Rf1 Qd4 Rd6 Nd7 Qb2 Nd2 Qb5 Nb3 Qa6 Rb2 Qg7 Nh6 Qh7 Nd3 Qg7 Qg1 Qh7 N7c5 Qhb7 Nd7 Kc7 Nf7 Nc6 Nf2 Nd8 Ne5 Rh6 Nc1 Rd6 Ned3 Kc6 Nb3 Qc8 Ra2 Re6+ Kf8 Kb7 Nb4 Qc7 Bc2 Ne3 Bb1 Re4 Rb2 Rd4 Be4+ Qc6 Nbd3 Qd5 N3e5 Kc7 Ke8 Qda8 Bb7 Nd5 Bc6 Qb8 Ba8 Qbb7 Ned3+ Kc6 Ra2 Qg2 Rd2 Qg4 Rb2
N2q4/1bR1Q2N/n1BB1n2/p2P4/2q2qrp/1BR1nbPP/rk1K4/r3r2B b - - 0 1 illegal: No proof kernel
Qr1N2BK/1r5b/4p2k/qP2n2N/1bq2qnR/b1B4B/PnRBp1P1/1b6 b - - 0 1 illegal: No proof kernel
n2b3N/2N2BB1/BpP2q2/1b2PBr1/q1Rr1q2/qp3P1Q/1b4r1/1R1nk2K b - - 0 1 illegal: No proof kernel
1RB3rr/2n3r1/p1Qb1RPn/5Bb1/Pkp4q/1rN1P1bq/B2B4/KNn5 b - - 0 1 illegal: No proof kernel
R2R2KB/3B1R1P/2n1n2p/b1kb1N1r/4Qqn1/1rR1pq2/1P2Pn1N/3q2b1 b - - 0 1 illegal: No proof kernel
rB1N2QK/3bN2p/b3N2P/1R1P3p/2Pn2qk/bqq1R3/3bn3/rrB3N1 b - - 0 1 illegal: No proof kernel
2Nq1r2/1N1BQ1PK/NBnRNP1b/1p3n2/3r3q/p1R3n1/q1r1bkP1/5r2 b - - 0 1 illegal: No proof kernel
3b1n2/2kr1QP1/1p6/NPR1NRP1/B1q5/rq1n1Kbb/2q3pR/q1BR1n2 b - - 0 1 illegal: No proof kernel
1Nnr2B1/1q2QP2/6PB/1q1q3r/Bp1kPpR1/3B4/Nbn1r1R1/1bqb1K2 b - - 0 1 illegal: No proof kernel
2B2B1n/b2b1Pp1/K1Pq4/n5B1/r4r2/1pr2Nrn/k1qR1RQP/3b2BN b - - 0 1 illegal: No proof kernel
1q3qrn/3K1pPN/1q1b4/kp1b3P/1bB1B2r/B4n1B/2N1PRr1/3bR2Q b - - 0 1 illegal: No proof kernel
4NqNK/3kPrr1/1qrQ1p2/n1B1R2P/RRR5/2rq3b/B3pb1P/1n5b b - - 0 1 illegal: No proof kernel
2R4q/kQPRn3/rr5P/b1r1Rp1p/r3qbB1/1R3qBK/N4P1n/Nn6 b - - 0 1 illegal: No proof kernel
4qb1b/1rPqqp1Q/R6p/1PN2Bn1/1N3Bnr/6k1/1bKP4/1NR1Nbn1 b - - 0 1 illegal: No proof kernel
2Q2BNK/1P4rB/3bn3/q3NR2/1kpBr1PR/2q1p1r1/b1qbP1Bn/1b6 b - - 0 1 legal: proof: g4 b5 c4 h5 a4 bxa4 f3 d5 Qb3 dxc4 f4 g5 fxg5 h4 Qg3 hxg3 b4 Kd7 d4 Kc6 Kd2 Kb5 Ke3 e5 Ke4 f5+ Ke3 c5 h4 a5 d5 e4 Kf4 e3 Ke5 g2 h5 a3 h6 a2 g6 f4 d6 a4 g7 f3 d7 a3 h7 c3 Rh2 c2 Ke6 f2 Kf7 Nh6+ Kg6 Nf5 g8B Ra7 Be6 Qa5 d8Q Nc6 Qd4 Nh4+ Kf6 Bd6 Qb2 Rg7 Qc3 Re8 h8B Nd4 Rh1 Nhf3 Bf7 Nh2 Bg8 Re4 Bh7 Be6 Nf3 g1R Bg2 f1B Nbd2 Bd5 Rb1 a1B Ne5 a2 Ba3 c1Q Rb2 Ka4 b5 Qc2 b6 Ne6 Rb5 Bb3 b7 c4 Qd4 Bb2 Qc5 a1Q Qc8 Bc1 Bb4 Qac3 Ba3 Bb8 Bf8 Ba2 Rd5 Bd6 Rc5 Rd4 Ne4 Bd2 Rd5 Kb4 Rc5 Nf3 Rh4 Nh2 Rd5 Rd7 Kg6 Rc7 Kh6 Rg7 Nf6 Rf4 Ng8 Re4 Bh3 Rg3 Bg2 Ng5 Nf3 Ne6 Rf5 Rf7 Bd4 Rg7 Bh3 Bg2 Ne5 Bh1 Bg2 Rf4 Bd5 Be4 Bc6 Bd3 Bg2 Re4 Bg6 Qb1 Qb8 Rc7 Bh7 Qbb2 Qd8 Bdb1 Qc8 Qbc2 Nf7 Ng5 Kg7 Ne6+ Kh8 Re7 Ne5 Rd7 Nf6 Rg7 Ng8
2B1NK1N/qP1P1nRk/1rn1bn2/1p1pPQ2/1BNbN2n/q3b1r1/5R1r/8 b - - 0 1 illegal: No proof kernel
N4Nrn/Pq1k4/2p2b1B/P1Prrb1b/3nQB1R/3K1N1p/1q3N1r/R6q b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 dxe4 h4 g5 Nf3 gxh4 Ng1 f6 Bd3 f5 Ke2 e3 Be4 Nd7 Kd3 fxe4+ Kc4 e2 Kc3 Nb8 f4 e1R g4 e5 d4 b5 a4 h5 a6 b4+ Kd2 e3+ Kd3 e4+ Kc4 e2 a7 b3 d5 b2 a5 h3 g5 e3 f5 h4 d6 h2 f6 Nh6 f7+ Kd7 c3 Qf6 g6 Bg7 f8B Nf7 Kd3 Nc6 c4 Nd4 c5 c6 Qa4 Rd1+ Bd2 e1Q Na3 e2 Nc4 b1B+ Qc2 Qe7 Nf3 Bf6 g7 Qf2 g8N e1R Nh6 Re5 Ng4 Rh6 Bg7 Nh8 Bf8 Rhh5 Bh6 Ba6 Bf4 Rg8 Bh6 Qg2 Nf2 Qgg7 Rg1 h1Q Rg4 h3 Rh4 Rd5 Bf4 Rhe5 Bh6 Rc1 Bdg5 Bc8 Bf4 Ba2 Qe2 Rc2 Qe4 Qef7 Na3 Rb2 Nb5 Bb3 Nc7 Bd1 Na8 Qe7 Ng4 Rh2 Nf2 Qef7 Ng5 Bh5 Nf3 Ke6 d7 Qe7 d8N+ Kd7 Nd1 Qgg2 Ne6 Qb2 Nf2 Qg7 Neg5 Qb7 Nh7 Qgg2 Ng4 Qgb2 Nf2 Ke8 Bg3 Bf5 Bgf4 Kd7 Nf8+
1rb3N1/PN1nRp2/p1P4q/B2B2rn/1P1nq3/2R2R1q/Q2b3R/k1qb3K b - - 0 1 illegal: No proof kernel
bbNR4/p3r3/R1Q1BbK1/2nbq1P1/1kNqRRB1/2p1P3/2P2r2/rn1q4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 e5 dxe5 g5 Be3 gxf4 Bf2 h4 Bg3 hxg3 Kd2 Ke7 Kd3 d5 h4 f5 b4 c5 e6 Kd6 b5 c4+ Kd4 a3 e3 g2 h5 f3 b6 f2 h6 a2 g5 c3 h7 f4 b7 f3 e7 Nd7 b8R Bb7 e8B Be7 Kd3 Kc5 Bh5 d4 Qd2 Bd5 Qd1 Bf6 Be2 f1B Rb7 f2 Nh3 g1B Nd2 Bfg2 Nf3 f1Q Nf4 Bh2 Ng6 Bb8 Nfe5 Qf4 Nc4 Qe5 Rf1 Qb6 Qc1 Kb4 Ne7 Bh1 Beg4 Nc5+ Ke2 Bhe4 Nc8 d3+ Kf2 d2 Be6 d1Q Re7 Qbd6 Bhg4 Qed4 Qd2 Q6e5 Qd3 Bf3 Qe4 Bg2 Qf4 Bge4 Kg3 Bh1 Kh4 Bhg2 Rc1 a1R Kh5 Bde4 Be2 Nh6 Rf7 Nf5 Rf8 Ra4 Rd8 Bc7 Kg6 Bc6 N8b6 Nd6 Qf3 Nb5 Ra1 Na3 Rc8 Rb8 Rd8 Ba8 Qd5 Rb7 Qc6 Bd5 Nc8 Bb8 Bf3 Nb1 Ra2 Rf8 h8R Bg7 Rh4 Re7 Re4 Rf5 Bg4 Bf6 Rf3 Ra5 Rg3 Rf2 Rf3 Rb5 Ra6 Ra5 Rf5 Ra1 Rff4
2b1n1k1/1N4N1/1r2rPpP/2rp4/5q2/2NP1r1N/nBK1RnR1/1rB1r1bQ b - - 0 1 legal: proof: e4 f5 a4 fxe4 g4 b5 axb5 h5 b4 hxg4 b6 c6 b5 Rh4 b7 Rh7 b6 Rh8 Bb5 cxb5 f4 Kf7 h4 d5 c4 a5 c5 e5 d3 a4 Kd2 g6 f5 e3+ Kc3 b4+ Kc2 e2 h5 e1R c6 b3+ Kc3 a3 h6 b2 c7 a2 Nf3 e4 Ng1 g3 Rh4 g2 Rg4 e3 Rc4 e2 Nf3 g1N Kc2 Qf6 Rd4 Ra6 Rg4 Nc6 b8B Nh3 b7 Bc5 Ng1 Rb6 Nc3 b1R Rg2 Nf2 Nh3 R1b5 Rb1 a1R Rb2 Rb1 Ba7 Qh4 b8N Qf4 Nd7 Nf6 Nf8 Kg8 Ne6 Ne8 Ng7 Rf1 f6 e1R Qh5 Bd4 Bb8 Rc5 Ra2 Re6 Rb2 Rfe1 Qd1 R1e3 Qh1 Rf3 Ra2 Nd1 Ba7 Bg1 Rb2 Nf2 Bb8 Bb7 c8N Rh7 Nd6 Bc8 Nb7 Nb4+ Kb3 Re1 Be5 Na2+ Kc2 Rh8 Rb4 Re6 Re4 Rh7 Re2 Reb6 Nf5 Re7 Ng7 Ree6 Bd6 Rcb5 Bda3 Rc5 Bab2
8/1BN1bnbQ/nr1PPB1p/kR2nb1n/2B1nN1K/p2nP3/Rrq3B1/8 b - - 0 1 illegal: No proof kernel
r1RNK2N/n3RnPq/nRp1P2k/bP2R3/p2r2n1/n2Bn3/3B4/1Q2bb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 dxc4 Qa4 e5 Qd1 exf4 Kf2 f5 Kf3 Kf7 g4 Kg7 e4 h5 d4 a5 b4 a4 d5 c3 e5 h3 d6 h4 e6 h2 b6 c2 b7 c6 g5 h3 d7 Na6 b8R Ne7 g6 Kh6 Nc3 Qc7 Bd2 c1B Be3 Bd2 d8R Be1 Bc5 Rh7 Ke2 f3+ Ke3 f2 Kd4 f4 Ba7 f3 Bc4 f1N Qc2 f2 Nd5 Nd2 Bd3 f1N Nf3 Nb1 Ne5 Na3 Nf4 Ne3 Rb6 Rf7 Rg1 h1N Qb1 h2 g7 Nf2 Nfg6 h1N Rg5 Nh3 Nh8 N1f2 Re8 Bb7 Rc8 Nfg4 Ra2 Rf2 Rb2 Rd2 Rf5 Ng5 Nef7+ Kh5 Rc5 Qh2 Nd8 Kh6 Re5 Nf7 Bb8 Qh5 Bd6 Qf5 Bb8 Qh7 Rb3 Nc7 Kc5 Ba6 Rb7 Bb5 Kb6 Na6 Rd7 N7f5 Re7 Nd4 Bc7 Bc4 Kb7 Rd1 Ba5 Ndb5 Rb2 Na7 Rb3 Nb8 Kc7 Na6+ Kd7 Rd2 Ke8 Rd1 Rec7 Bd6 Re7 Bc7 Rc3 Bb5 Rcc5 Bc4 Rb5 Rd2 Rb6 Bb5 Be4 Bf1 b5 Rd3 Bd2 Rd4 Rb7 Bb6 Bd3 Ba5 Rb6
n4b1N/2r1Br1n/1k1Q2q1/nr1bNpP1/3P2p1/3rBB2/P3r1Rn/KB4R1 b - - 0 1 illegal: No proof kernel
B2n2bB/2r3N1/R2bbK2/1RP1PN2/p2k3p/b5nP/2brRr1r/1Q3R1q b - - 0 1 legal: proof: d4 b5 b4 c5 g4 f5 a4 fxg4 d5 cxb4 axb5 e6 Bh3 exd5 Bf1 d4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 f4 g5 c4 h5 f5 d5+ Kd3 Ke5 e4 a4 b6 g3 f6 g2 f7 b3 b7 g4 Qc2 g3 Qb2 Ne7 Nd2 Be6 Nb1 Ra7 Bd2 Nf5 Be3 Bd6 f8R Qh4 Be2 Nc6 b8R Nd8 Bc1 Rc7 Qa2 b2 Na3 b1B+ Nc2 Qh3 Qb3 Ba2 Bf3 h4 Ne2 g1R Bb2 g2 Qb6 Ng3 Rf6 Rf8 Nf4 Re1 Rf1 g1B Qb3 Re2 Rb5 Be3 c5 Bc1 Bc3 Ba3 Ne3 Qg2 h3 Qh1 Qd1 Rh2 Nh5 Rff7 Rh6 Rf4 Bg2 Rf2 Nf5 Bb3 Ra2 Bg8 Bb4 Be6 Re2 Bg8 Kd2 d3 Ke3 d2 Qb1 d1B Nhg7 Bdc2 Bc3+ d4+ Kd2 Bf8 Ra6 Bd6 Ba1 Bbe6 Bf3 Bb2 Bg2 d3 Ke3 d2 Bf3 d1R Bg2 Be7 Bf3 Kf6 Kf4 Bd6+ Kg4 Ke5 Kg5 Rd2 Kg6 Kf4 Bg2 Ba3 Bf6 Bf8 e5 Bd6 Ba8 Rd5 Rd2 Ke4 Re2+ Kd3 Nh5 Kc3 Bh8 Rd2 Ng7 Kd3 Nh6 Kd4+ Kg5 Rfg2 Kf6 Rf2+ Nhf5+
Qn2r1B1/nBR1n1b1/P2Nb3/1rP1b1p1/K2Nb3/pn1B2P1/4q3/1n3BRk b - - 0 1 illegal: No proof kernel
1kr1N3/1qqp1qr1/2q4N/qB1b4/1P2q3/1RQPRp2/2KP3n/1nb1RRB1 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 h5 bxa4 h6 Qg5 Ra3 Qf5 Ra1 Qd3 cxd3 gxh6 Rh4 h5 Rh1 h4 e4 Kd8 g4 h5 e5 f5 g5 a5 b3 c5 g6 Kc7 g7 h3 e6 a3 e7 h4 e8R c4 Qc2 a2 Kd1 f3 Be2 f2 Re6 h2 Re3 c3 Rf3 a4 Qb2 f1Q+ Kc2 h3 Rg3 f4 Bh5 a3 Bf7 Nc6 Be8 Na5 Rg4 Nc4 Ne2 Nf6 g8R Kb8 Rg3 Bb7 Rf3 Ng4 Rf2 Rh7 Nd4 Rg7 Nb5 Bd5 Rg1 h1Q Rh8 h2 Re2 Qe4 Re3 h1Q Nd4 Nh2 Bf7 Qfg2 Rh4 Qgg6 Rge1 Qc6 Nf5 f3 Rg4 Qg2 Rh4 Qgg6 Bg8 Qf7 Nh6 Bc5 Rg4 Bd4 b4 Be5 Rgg1 Bd4 Kb3 c2 Qc3 Qb7 Bb2 c1Q Rgf1 Bf6 Qc2 Qc6 Be5+ Qc7 Bg3 Bb2 Bf2 Qb7 Nc3 Qc6 Rb1 a1Q Nf5 a2 Nb5 Ba3 Bg1 Qb7 R3e2 Qae5 Nbd6 a1Q Ne8 Qec7 Re3 Bb2 Qc3 Qaa5 Nh6 Qcc6 Ra1 Qcc7 Ra3 Qc2+ Ka2 Bc1+ Ka1 Qca4 Kb1 Q4b5 Kc2 Q5c6 Rb3 Na3+ Kd1 Nb1 Kc2 Ka7 Bh7 Rc8 Bf5 Bc4 Be6 Kb8 Bd5 Q6d6 Bc6 Bd5 Ba4 Qdc6 Bb5
1rN2r2/2N3p1/N1nNp2R/8/r2kn1RP/1bbnB1P1/1r1bnPKQ/q2B4 b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 g3 fxe4 Ne2 b5 axb5 h5 Ng1 h4 Qf3 h3 Qg2 hxg2 b4 Kf7 c4 Ke6 h4 Ke5 c5 a5 c6 d5 b6 d3 b7 a4 c7 a3 b5 e3 b6 a2 Be2 d2+ Kd1 d4 Bb5 e2+ Kc2 d1N Kd2 e1B+ Ke2 d3+ Kf3 d2 Na3 Nb2 Nh3 d1R Be2 g1N+ Kg2 Bc3 Nc4+ Kd4 Ng5 Nd3 Nd6 Rd2 Bd1 Ne2 Re1 Nc6 b8N Rb2 b7 Be6 c8N Bb3 Na6 Qa5 b8Q Nf6 Qb7 Rb8 Qd7 Rg8 Qh3 Ne4 Qh2 Qa4 Rb1 a1R Bd2 Qa5 Rc1 Ra4 Ne6+ Ke5 Nec7 e6 Be3 Be7 Ra1 Rf8 Rc1 Bd2 Rc4 Bf6 Rb4 N4c3 Rg4 Ne4 Rg6 Qc3 Rh6 Qc1 Bg5 Kd4 Bf4 Qa1 Bg5 N2c3 Re3 Be5 Rf3 Ne2 Rf4 Bc3 Rg4 Bf4 Nc4 Bc1 N4d6 B1d2 Be3+
r1nqn1qB/2nb1R2/2qN3n/2B1Q1kP/1p1K2pN/5Rb1/2rBq1PP/3B4 b - - 0 1 illegal: Other
Q2n1b1N/N1Rn4/P1P1qnb1/p1r1BBn1/4BBRK/b3pq2/k3bP2/1r6 b - - 0 1 illegal: No proof kernel
b2B4/N1B3qQ/p6r/KRbRn2r/2P1PkB1/Br4N1/Pbp5/r1q2n1b b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 Na3 exf4 Nb1 d5 Ba3 dxc4 Bb2 c3 Bc1 c4 bxc4 Qd7 Qb3 Qd3 Qd1 Qd8 e4 Kd7 h4 Ke6 d4 f5 h5 b5 h6 g5 d5+ Ke5 d6 b4 d7 g3 h7 a6 Qd2 g4 Qb2 g2 Qe2 b3 Qb2 f3 Na3 g3 Be2 f2+ Kd1 f1B Rb1 f4 Ke1 f3 Rh3 f2+ Kd1 Qg5 d8B Bg7 Ba5 Nd7 Be3 Ne7 Bc1 Nd5 Rh4 Bb7 Qc2 b2 Nh3 g1Q Rh5 g2 Ra1 b1R Nb5 Rb3 Ba3 Ne3+ Kc1 Qh1 Bg4 g1B Nf4 Bg2 Bd8 Nf1 Na7 Bd5 Qe2 c2 Rb1 Rab8 Qd3 Ba8 Qh3 R8b6 Qh4 Rh6 Rb2 Ne3 Kd2 f1R Ne2 Ra1 Ng3 Kf4 Qh2 Qg6 Rd5 Ne5 Rb1 Bf6 Qh3 Qg7 Bc7 Rb6 Kc3 Nf1 Rbb5 Bc5 Kb3 Qg1 Ka4 Bh1 Ka5 Qe3 Qh5 Qc1 Qf7 Rh5 Qg6 Rhb8 h8B Rd6 Qh7 Rbb6 Rb1 Rb3 Bd8 Nd3 Bc7 Bb2 Bd8 Ne5 Bc7 Qh6 Bf6 Qg7 Bh4 Rdh6 Bhd8 Qe3 Rbd1 Qc1 R1d4 Bd6 Rb5 Bc5 Rd5
3b1k2/1KB3PR/n2R2nn/P2Q2BP/Nbp5/1p1b3n/r2Nb1BB/3qr1q1 b - - 0 1 illegal: No possible last move, all moves rejected
3B1Rnr/1K3RP1/1B2pNkP/Q2rq1Pb/5b1N/2pn3b/nq2BBb1/1n6 b - - 0 1 illegal: No proof kernel
5b1n/b1p1kN2/p2q1rr1/6Pq/B1B2N1n/1nPbRbnK/2RPQ1N1/5N2 b - - 0 1 legal: proof: e4 e5 a4 g5 f4 b5 axb5 d6 h4 gxh4 b3 Be6 Bb2 exf4 e5 Bd7 e6 Bc8 Be5 dxe5 Kf2 h5 g4 f5 Kg2 a6 g5 f3+ Kh2 f4 b4 h3 c3 h4 e7 f2 b6 f3 b5 e4 b7 e3 b6 e2 Qa4+ Nc6 b8N e1B b7 Bg4 Qe4 Qd6+ Qe5 Nd4 Qg3 Nb3 Qf4 Rh6 Ne2 Rf6 Qe5 Nh6 Nd7 Nf7 b8N Nh8 Nb6 Bf5 Nd5 Bd3 Nc6 Rb8 Na7 Rb6 Ndf4 Kd7 e8B+ Kd8 Qb5 Ke7 Ng3 Rc6 Be2 f1N+ Kg1 Rg6 Na3 Ne3 Kh2 f2 Rc1 Ng2 Rc2 f1Q Qc4 Bf2 N7b5 Qd1 Re1 Ba7 Nf1 Rb6 Rb2 Rf6 Nc2 Rg6 Nce3 Rc6 Kg1 h2+ Kf2 h1B Rc2 h3 Kg3 h2 Kh3 Nh4 Neg2 Qd4 Bd7 Rcf6 Nd6 Qe5 Nf7 Qd6 Beg4+ Qe2 Bge6 Qd1 Ba4 Qh5 Nge3 Bb7 Neg2 h1N Re3 Ng3 Qe4 Bc6 Qf3 Bce4 Qe2 Bf3 Bc4+
q1Q4B/pnr3R1/n2k1K1B/1p4P1/qP2N1b1/5Nbn/1P3rRn/B2b2Bb b - - 0 1 illegal: Other
Q5q1/4P1kb/Nb1r1q1q/1R1rrb2/p1P1p1bN/r3P1BB/2K5/2N1R1Nn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 bxa4 d4 gxh4 d5 e5 d6 e4 Kd2 Nc6 Ke1 Ne5 fxe5 cxd6 Na3 d5 Nb1 d4 Kd2 d5 g4 a5 c4 f5 b4 Kf7 g5 h5 e6+ Kg7 e3 d3 b5 a3 g6 a2 b6 f4 b7 f3 b8N f2 Bg2 f1B Na3 h3 Nc2 h4 Qe1 d4 Rh2 Ne7 Ne2 Nf5 Ng1 Ng3 Na3 Rh5 Bf3 Nh1 Qd1 Rd5 Nb1 Bc5 e7 Bf5 Bb2 Bb6 Na3 Qg8 Rb1 a1Q Rf2 h2 Nb5 h3 Kc1 d2+ Kc2 a4 Rc1 Ra5 Na6 Re5 Qe1 d1R Nc3 Rad5 Na2 Rd3 Bg2 Ra3 Qa5 d3+ Kd2 Be2 Re1 Bh5 Nc1 Bhg4 Rf3 Bh5 Kd1 d2 Kc2 d1R Rg3 Rd6 Rg5 R1d5 Bf1 Ng3 Bc3 h1Q Bb4 h2 Bh3 Ree6 Bd2 Qf6 Bc3 Ree5 Bb4 Kh6 g7 Bhg6 Bc3 Bh7 Bb2 Bc5 Qd8 Bb6 Qa8 Qf3 Ba1 h1B Bb2 Qf4 Ba1 Ree6 Be5 Qh4 Bf4 Bf3 Be5 Nh1 Bg3 Ree5 Rh5+ Kg6 Rg5+ Kf7 Rh5 Qc8 g8N Kg7 Nh6 Qg8 Rg5+ Kh8 Rh5 B3g4 Rg5 Bd7 Nf5 Qhh6 Nh4 Bc8 Rf5 Kg7 Rf2 Bcf5 Rd2 Rc5 Rd5 Ra5 Rb5 Red5 Rb4 Re5 Rb3 Rad5 Rb5
R1K1k1nn/6b1/Qb1b1P2/4p1rp/1n1R3B/1nn1PbrP/r2N2RR/6NB b - - 1 2 legal: proof: d4 a5 b4 c5 g4 cxd4 a4 b5 Ba3 f5 Bb2 fxg4 Bc1 Qb6 Bg2 axb4 Bf1 b3 Bh3 b4 Bf1 Qb5 axb5 Ra4 Bb2 Ra3 Bc1 Ra8 Kd2 e5 Kd3 h5 Ke4 g5 Kd5 d3 f4 g3 c4 g2 f5 d2 h3 b2 c5 b3 f6 g4 b6 g3 b7 Nc6 b8R Bg7 Kd6 Nb4 Kc7 d5 c6 d4 Ra5 d3 Ra1 Ra2 Nf3 g1B Qc2 d1R Qc3 g2 Qd2 Bc5 Na3 g1B Nc4 b1N Rb5 b2 Qc3 d2 Rb6 Bg4 Qd3 Na3 Bg2 b1N Rh2 Nb5+ Kb8 Bcf8 c7 Nd6 Bh1 Nf7 Rd6 Bb6 Ng1 Bf3 Rd4 Bd6 Kc8 Rh7 Qa3 Nh8 Qa6 Rh6 e3 Rg6 Bb2 Rg4 Bc3 Rg5 Rg2 Re1 Rh2 d1N Nd2 Rb2 Ra5 Ra2 Rad5 Rf1 Rg4 Rf2 Rdd4 Rg2 Rg3 Nb2 Rgg4 Nc4 Rg3 Na5 Rgg4 Rf2 Rgg2 Nb3 Ne4 Rae2 Kb8 Ra2 Be1 Bg4 Nd2 Rf3 Bh4 Nc3 Kb7 Rg3 c8R+ Bd8 Ra8 Bf3+ Kc8 B8c7 Qb7 Bb6 Qa6
nbN3Br/p4RK1/3N4/1PP5/1Nr1nnp1/PQrN1k2/bb1B4/1nn1R2b b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 h5 Bh3 b5 Bf1 bxc4 d4 hxg4 Be3 c5 Bg2 c3 Bf1 c4 Bd2 Qb6 Bc1 Qc5 dxc5 Kd8 Qd5 Ke7 Qd1 Ke8 Kf2 Ke7 e4 Ke6 h4 Ke5 b4 d5 a3 f5 h5 g5 h6 c2 h7 d4 b5 c3 Nd2 g3+ Kf3 g2 Ne2 g1N+ Kg2 g4 Rh5 f3+ Kg3 d3 Kh4 f2 Kg5 f4 Bg2 f1N Nb1 d2 Qe1 d1B Bd2 c1B Rh2 f3 Kg6 c2 Nbc3 f2 Bh1 Bb7 Nf4 Na6 Qe2 Rd8 Ra2 Nc7 Qc4 Rd3 Rh6 Na8 Ncd5 Ne2 Ra1 Nf6 Qb3 Bd6 Nb4 Bb8 Kg7 Rc3 Nfd3+ Kd4 e5 Nf4 e6 Bb2 e7 c1N e8N Ne4 Rf6 Bf3 Rf5 Bd5 Rf7 Bg2 Qa4 Ba2 Nd6 Rc4 Qb3 Bf3 Bc3+ Ke3 Nc8 Nfd2 Bg2 f1R Rb1 Rf8 h8N Rh1 Ra1 Rh3 Bh1 Nb1 Bg2 Nf6 Bd2+ Ke2 Bh1 Bb7 Bd5 Ne4+ Rf6 Rg3 Nf7 Rh8 Nfd6 Re3 Bg8 Kf3 Nf2 Rec3 Rf7 Bc6 Nfd3 Kg2 Rf8 Nce2 Qc2 Nf2 Be3 Nd2 Re1 Nc1 Rf6 Nb1 Bd2 Kg3 Ne5 Bh1 Ned3 Kf3 Qb3 Ne4 Rf7
n2R4/bN5P/1N1P3R/P1K2N1q/B1p2b2/n1n3r1/QBb1pp1N/1rkq3q b - - 0 1 illegal: No proof kernel
1q1Rb3/nk1r3p/N1q4N/1nPP1QbB/4KP2/1p2pr2/2R3bn/2B1NqN1 b - - 0 1 illegal: No proof kernel
1n1Bn3/4p2q/2b1p2N/1b2p2K/1b1RPN2/1Pr1qr1Q/r2N1PR1/qNk3B1 b - - 0 1 illegal: No proof kernel
2N1B1K1/1pB4p/1n2nqQ1/b3rk1b/3r2R1/B1P1P1np/2N1qPqb/2B1R3 b - - 0 1 illegal: No proof kernel
1QbqN3/4RbBk/3r1B1B/1nnPp3/Pp1r1n2/b1p1K3/4N1P1/3bbBR1 b - - 0 1 illegal: No proof kernel
4K1R1/RB1B3B/r3P1r1/1b1r1p2/5kNn/B1P3bq/1r1p1pPb/rQ1N1n2 b - - 0 1 illegal: No proof kernel
3q1n2/1p1rP1K1/b2pR3/1bB3B1/pr2r3/Q1rN1PBB/P5nR/kNr4b b - - 0 1 illegal: No proof kernel
3q2B1/n3n1p1/2k2R2/2b1Q2N/P1KP1RP1/Nnbp2B1/2r1r1np/1N1Nrb2 b - - 0 1 illegal: No proof kernel
1NQ3nr/k2q1q2/1R1pn3/1n2b1pP/2Kn1Pn1/2N3RR/1BrP1p2/1R2B2b b - - 0 1 illegal: No proof kernel
Nk1brB1K/2b1B1p1/n2n2p1/3BB3/RpP1QPb1/1N6/q4qP1/1b1Rr1b1 b - - 0 1 illegal: No proof kernel
2R3b1/q4B2/rB2Br2/4r2P/r2qnbB1/P2ppK1P/3pQ1nN/Rk1n1N2 b - - 0 1 illegal: No proof kernel
Rb1NB1rb/1K1nBb2/1N1NQ2N/1qq2P2/1R1p1r2/p1P1Pnkp/7n/6b1 b - - 0 1 illegal: No proof kernel
nNR4R/q6q/1B2Q1Np/p2K3n/1b1N2P1/bn1r2r1/PPbp1N2/b1B2k2 b - - 0 1 illegal: Other
1RbB1q2/nQ1N1qnN/2q1P2r/2NBbN2/7r/1KP4r/1p1P1pp1/3R2kr b - - 0 1 illegal: No possible last move, all moves rejected
2nKNB2/1R1B3B/3P2p1/2q1kn2/1pN1r2n/1R1Pp1nB/rP4bQ/b1b4q b - - 0 1 illegal: No proof kernel
1qQ3bN/4q2R/1bBp1nR1/4p1k1/1b2R3/1rn2rBP/Np1nP2P/4n1RK b - - 0 1 legal: proof: d4 f5 b4 h5 b5 c5 b6 cxd4 Be3 h4 Bc1 h3 gxh3 axb6 Qd2 b5 Qf4 b4 Qg4 fxg4 a4 Kf7 f4 Kf6 Kf2 g5 Kg2 e5 c4 b5 c5 g3 f5 b3 a5 b4 a6 g4 c6 b2 c7 d3 a7 d2 Nf3 d1N Nd4 b3 Na3 b1Q Ra2 Nc6 Rd2 Kg5 f6 Rb8 a8R Nb4 f7 Nc2 Rg1 Nc3 Nc4 Nf6 Ra4 Qe7 Nc6 Ne1+ Kh1 Ba6 Nd6 Bc4 c8Q Rb4 Bg2 Be6 Nb5 Rf4 Re4 Rf3 Qb7 Qb4 Nc7 Rf5 Rc4 Rf1 Ne8 Qa3 Qa8 Qd6 Nb4 b2 Qc6 Qf5 Na2 Qh7 Qc7 Rf2 Bd5 Rf3 Rf1 Qb4 Bc6 g2+ Kg1 Qb3 Nd6 Qg7 Qb8 Be7 Qb7 Rb8 Qc7 Rb5 f8R Bf7 Rh8 Bg8 Rh6 Qf8 Rf4 Qbf7 Bd5 Qb8 Bc6 Rb3 Qc8 Qg7 Rd5 Qh7 Rb5 Qf7 Rb7 Qe8 Nf5 Bb4 Nh4 d6 Rbh7 Qe7 Ng6 Rg3 Kf2 g1N Nh8 Ngf3 Be3 Nd2 Rg1 Bd5 Bb6 Bg8 Re4 Re3 Rf1 g3+ Kg1 Rd3 Bf2 g2 Bg3 Nc2 Kf2 g1B+ Kg2 Rf3 Kh1 Bb6 Rg1 Ne1 Rg6#
Kb2knr1/B1N5/2Pq2Nn/pqr5/1p1np3/3qP1Rn/1QBP4/1R1Rb2R b - - 0 1 illegal: No proof kernel
R1N4Q/7K/p1r4R/p1r2Bb1/3pnPqP/4n1Pr/b1Rq1B2/k1bRN2r b - - 0 1 illegal: No proof kernel
Nb6/R4np1/q2b1bBB/pPqq3R/P2bkr2/4P1KN/2n1p3/r1BQB3 b - - 0 1 illegal: No proof kernel
2RBr3/3b1Pp1/2P3bk/4N1n1/p3N1PQ/2bn2qR/K3p1Rn/1rBqRb2 b - - 0 1 illegal: No possible last move
1r5R/2NKP3/1Q3qpk/2Nb3p/Bn1qp3/N1N1P1B1/bq1b2Pb/3R2rn b - - 0 1 legal: proof: f4 a5 h4 b5 b4 axb4 c4 d5 h5 dxc4 h6 e5 Nh3 e4 Kf2 Qd4+ Ke1 Ra6 Ng1 Qe5 fxe5 Rxh6 Kf2 Rh3 Ke1 Rh2 Kf2 c5 Ke3 h5 Kf4 f5 a4 Kf7 d4 Kg6 e3 b3 a5 c3 d5 c4 d6 c2 d7 b4 d8N c3 a6 b2 e6 b3 Ke5 f4 a7 f3 a8N f2 Qf3 Nf6 Nc7 Bb7 Qe2 Bd5 Ra3 Bd6+ Kd4 Ng4 e7 Kh6 Nb7 g6 Qc4 Na6 Na8 Rb8 Qc7 Nb4 Nd2 b1Q Nc5 b2 Nc4 Qa1 Bd2 c1Q Ne2 b1B Be1 c2+ Nc3 Qcb2 Qb6 c1B Nc7 Ba2 Ra8 Bd2 Na3 Bg3 Bd3 f1Q Bb5 Nf2 Ba4 Qa6 Rf1 Nh1 Bf2 Rh4 Rd1 Bh2 Bg3 Qc4+ Ke5 Qd4+ Kd6 Rf4 Nc4 Rf1 Na3 Rg1 Kd7 Qf6 Nc3b5 Qbd4 Nc3 Qc1 Nc4 Qb2 Na3 Rb7 Rc8 Rb8 Rh8+
2Qn3R/2K1p1pN/2BpPBP1/N2b4/2RPr2b/8/b2R1nR1/n1qkbrq1 b - - 0 1 illegal: No proof kernel forced: wxDB
b1rR2N1/1p2nBRp/4n2b/q1kq3P/1r1b3K/4PrQb/1BP2pR1/3N3R b - - 0 1 illegal: Other
4K2k/3n1r2/2ppB1NN/Qp5r/nbnqBnP1/4RP2/1P2BR2/b1B3nn b - - 0 1 illegal: No proof kernel
K1Rb1b1q/3N1pBr/1NP3b1/2r1P1N1/3n1Bp1/1pR2NPn/2Q1n3/k2b3n b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 h5 b5 e5 fxe5 h4 b6 h3 g3 axb6 Kd2 b5 Ke1 b4 Bg2 hxg2 Kd2 Ke7 Kd3 Ke6 Kc4 g5 Kb5 Kd5 h4 d3 e4+ Kd4 a4 d5 c4 d2 e6 b3 e5 b2 h5 g4 e7 Ra5+ Kb4 b5 c5 Nf6 e8N Bf5 h6 Bg6 h7 Nh5 Rh2 Nf4 Ra2 Nh3 Nc3 b1N Ne4 Nc3 Ng5 Ne2 Qc2 d1N Nf6 Ndf2 Nd7 Nh1 Ra3 Qf6 Rc3 Nc6+ Kb3 b4 Bf4 Rb5 a5 Qd8 Ka4 b3 a6 Qa8 a7 Qc8 Qb2 Qe8 Rc1+ Kd3 a8N d4 N1f3 g1B Rc4 Be3 Qc1 Bd2 Rg2 Ba5 Rg1 Bd8 Nab6 Ne7 c6 Rc5 Qb2 Nf5 Ra1 Qe7 Kb4 Qf6 Ra8 Qg7 Rc8 Qh6 Ka4 Qh5 Qa2 Qh6 Rb4 Kc3 Rb5 d3 Ka5 d2 Ka6 d1B Kb7 Qh5 Ka8 Nfd4 Qb1 Qh4 Qd3+ Kb2 Qc2+ Ka1 Rb4 Rg8 h8B Rg7 Rc4 Rh7 Rc3 Qh6 Nh2 Qg7 Nhf3 Qg8 Bf6 Qh8 Bg7
q1Q5/pp1b1nN1/1Rr3k1/BPn5/2N1n2R/b1PRBR1P/bb1p3K/1r4n1 b - - 0 1 illegal: No proof kernel
2N3bb/2r2pRN/1P1k3b/1K2nPq1/1R2Rb2/qqrB1p2/1P1R2Qp/2b1B3 b - - 0 1 illegal: No proof kernel
Q1N1bKRR/4n2B/bprp1P2/N1r1n1Bn/p6r/P1R5/rb2P3/2R2kr1 b - - 0 1 legal: proof: d4 f5 b4 e5 b5 exd4 b6 cxb6 Bh6 b5 Bc1 b4 h4 g5 Bb2 g4 Bc1 f4 g3 Qg5 hxg5 fxg3 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 f4+ Ke4 g6 h5 g7 a5 f5 d3 c3 b3 f6 h4 Bb2 Ke3 Kd5 Kf2 c4 g2 c5 b6 c6 g3 c7 h3 Ke5 h2 Bc3 d2 Na3 b2 Rb1 Ne7 Kd6 Rh4 g8R Nbc6 Nf3 g1R Bg2 Ne5 Nc4 Ba6 Qa4 d1B Rc1 b1R c8R Rb5 Nfd2 Rc5 Be4 g2 Nb3 Kf1 Bh7 Bh6 Rc2 Bc1 Bb4 Bb2 Bd2 Ra7 Rc3 Bc2 Rc6 Bg6 Bg5 Be8 Rc7 Ra8 a3 Rc8 Qc6 a4 Qa8 Kf2 Rf8 Ra1 Nba5 Ra2 Rg1 h1N Rh8 Ng3 Rc6 N7g6 Rc7 Nh5 Rc6 Ngf4 Ke7 Nd5+ Kf8 Ne7 Nd6 Rc7 Nc8 d6 Rgc1 g1R R1c2 Kf1 Rg3 Rd5 R6c3 Rc6 Bc1 Rf4 Rgg8 Rh4 Bg5 Rdc5 Rc1+
qr3Nq1/1B3k2/qp3P1K/BP2RqQp/1PR1q3/p3q2B/n1bbNn1B/8 b - - 0 1 legal: proof: b4 d5 a4 f5 h4 g5 e4 fxe4 Ra3 gxh4 c4 dxc4 Ra2 a5 Ra1 Ra6 Bb2 Rb6 Bc1 Rb5 axb5 Bh3 Ra4 Be6 Ra1 Bc8 Ke2 c5 Ke3 h5 Kf4 e5+ Ke3 h3 g4 h2 f4 a4 d4 c3 g5 a3 d5 c4 f5 c2 d6 c3 d7+ Kf7 f6 Na6 Be2 Nh6 Qe1 Nc7 Nd2 Nd5+ Kf2 e3+ Kg3 e4 Kh4 Ng4 Nf1 Bh6 Nh3 Nf2 Bd3 e2 Qd2 e1Q Nf4 e3 Be4 e2 Ng3 Qf1 Ng6 e1Q Ne2 Qg8 d8B Bf5 Ba5 b6 Nf8 Bh7 Bb2 c1Q Qf4 c2 Be5 Qe3 Rc1 Nc3 Bb7 Na2 g6+ Ke8 g7 Kf7 Bc7 Qe4 Qg4 Bd2 Bd6 Qe3 Qg5 Bd3 Rg1 h1Q+ Bh2 Bh7 Rg4 Bf5 Rb1 c1Q Rc4 Bc2 Rb3 Qd5 Rd3 Qd8 Rd5 Qa8 Rdc5 Qa6 Re5 Qh1 Qf4 Qb1 Kg5 Bh7 Kh6 Qf5 Qg5 Qhe4 Ne6 Qga8 Nf8 Qg1 Ne6 Rb8 g8B+ Ke8 Nd8+ Kf8 Be6 Qgg4 Bd7 Qgg2 Ne6+ Kf7 Nf8 Qgg3 Qf4 Qg8 Qg5 Qfh3 Ng6 Qd5 Nh4 Bc2 Ng6 Qde4 Nf8 Qhf3 Bg4 Qff5 Bh3
RBq5/q1qPNNk1/rrQNr3/1n2P3/3p3R/1q4pK/p1bPB2b/1N2r3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 f5 hxg4 f6 d5 c3 Nc6 Bg2 Nd4 Bh3 exf6 Bf1 f5 Na3 f4 Nb1 Nb5 c4 d4 Na3 Nc3 Nb1 Nd5 cxd5 Be6 Nc3 Bd7 Nb1 Bc8 Kf2 c5 Kg2 a5 e4 f5 h4 Kf7 b4 g5 d6 g3 h5 f3+ Kh3 g2 b5 g4+ Kh2 f2 b6 c4 b7 a3 b8N c3 h6 a2 h7 f4 Nh3 g1R Na3 f3 Qc2 a4 Qb3+ Kg7 Qd5 c2 Nb5 a3 Nd7 Qc7 Nf4 Nh6 Qc5 Nf5 Bg2 f1R Bb2 c1Q Nd3 f2 Nf6 Re1 Ng8 f1Q Nc3 Qf3 Qc6 Ra6 Nf2 Qe3 Nb1 Qb3 Ne7 Re3 Bh3 Rge1 Bf1 Bd7 Qc4 Ba4 Qc6 Qc8 d7 Nd6 Bc4 Nb5 Be2 Rg8 h8N Qc5 Qd6 Q5c7 Nf7 Rh8+ Kg2 Rh6 Rh4 Re6 Qb6 Rc3 Qb7 Rcc6 e5 Rcb6 Ne4 g3 Nd5 Be7 Bc3 Bg5 Ne7 Be3 Qc6 Bg1 Kh3 Bh2 Ned6 Qc4 Bb4 Bc2 Bc5 Qb3 Nc3 Rb7 Ba7 Rbb6 Rb1 a1Q Bb8 a2 Rb2 Qd1 Nb1 Qa3 Rb4 Qb3 Ra4 Qc1 Ra5 Qca3 Qc3 Qac5 Ra4 Qa7 Qc4 Q5c7 Qc6 Rg6 Ra3 Re6 Ra5 Qab7 Ra4 Ra7 Rb4 Ra3 Ra4 Qa8 Ra7 Raa6 Kg2 Qab7 Ra8 Qa7 Kh3
R3rB2/1B1bNN2/pK4n1/1p2qPp1/2qnqn2/Q5Rq/R3PbPk/1R2n3 b - - 0 1 illegal: No proof kernel forced: bxLB
q2N4/1bkb1np1/3pB1n1/1q4NK/B2Q3p/1N1PnNrb/R2P3P/3Rb1n1 b - - 1 2 legal: proof: g4 c5 b4 cxb4 g5 b5 g6 a5 Bh3 b3 Ba3 b2 Bb4 axb4 Bf5 Ra3 Bh3 Rd3 exd3 fxg6 Bg2 g5 Bf1 g4 Ke2 e5 c4 h5 a4 e4 f4 d6 c5 Kd7 c6+ Kc7 f5 b3 f6 b4 a5 g3 f7 g2 a6 e3 Kf3 e2 a7 e1N+ Kf4 Ne7 Kg5 Nd7 a8B Ng6+ Kf5 Be7 f8N Bb7 Nc3 b1Q Nf3 g1N Ra5 b2 Be2 b3 Na4 Ng2 Qe1 Nde5 Nh7 Nf7 Qf2 Bh4 Qd4 Be1 Nc5 h4 Kg4 Rf8 Ra2 Ne3+ Kh5 Re8 Nfg5 Re4 Bf1 Rg4 Bh3 Rg3 Nf3 Qe8 Bf5 Qa1 Nhg5 b1B Bg4 b2 Nb3 Bc2 Bh3 b1B Be6 Bc8 Bb7 Bd1 Ba6 Bbc2 Bb5 Bb7 Ba4 Qa8 Qg4 Qe5 Qd4 Nh3 Rf1 Qb5 Rg1 Be2 Rh1 Bf1 Rg1 Kd8 Rh1 Ng1 c7+ Ke7 c8N+ Kd8 Ne7 Kc7 Nc6 Bh3 Nc5 Bb3 Nd8 B3d5 Nb3 Bdc6 Qg4 Bd7 Qe4 Ne2 Rf1 Ng1 Qd4 Bf2 Rfa1 Be1 Rd1
1NnR2r1/pn4b1/n1KpRRbB/2B1bp2/P1N4P/2nr4/1n3P1Q/1bR2k2 b - - 0 2 legal: proof: d4 b5 g4 e5 c4 exd4 g5 bxc4 Bh3 f5 Bg4 Qf6 gxf6 h5 Qd3 hxg4 Qd2 Bc5 Qd1 Bf8 Kd2 Kf7 b4 Kg6 a4 Kh5 h4 c5 e4 g5 e5 c3+ Kd3 c2 Kc4 d3 Kd5 c4 f7 c3 e6 d2 e7 Na6 e8R Ne7+ Kd6 Bg7 f8B Bb7 b5 Rd8 b6 Be4 b7 Rg8 Ba3 c1N b8R c2 Qf3 d1B Qg3 Nd3 Nf3 c1N Qh2 g3 Rb2 Kg4 Bc5 g2 Re2 g1B Rb2 Nb3 Qe5 Bh2 Qf4+ Kh3 Re1 Kg2 Bb4 g4 Na3 g3 Rc1 Na5 Rbe2 Nb2 Ne5 Bb1 Rec2 Bh5 Nc6 Bg6 Re6 Nc8+ Kd5 Nb7 Nb8 Nbc5 Nc4 Nb7 Be1 Kf1 Bc5 g2 Bd2+ Nd1 Qc7 g1N Bh6 Ne2 Rf8 Bhe5 Rff6 Bb2 Rd2 Be5 Rcc2 Nb2 Rd3 Bd4 Qh2 Be5 Rd4 d6 Re4 Nc3+ Kc6 Rd7 Re8 Re7 Rd8 Bg3 Rf4 Re3 Re4 Rd3 Ree6 Be5 Rc1+
b4RbQ/8/1pR1n3/1Bnqp3/rkrP2RN/5rp1/P2b1PNp/qRBK4 b - - 0 1 illegal: No proof kernel
QR1q1B1r/KN2q1NR/ppp1r2b/p2n3N/1N5P/1Pk1bP2/b1r5/n2B4 b - - 0 1 illegal: No proof kernel
3B1n2/3rR2p/N1Kbppn1/q1NQ1PpR/P1k5/P1B1q3/2r1q3/2RbR1n1 b - - 0 1 illegal: No proof kernel
1Rn2NKQ/ppb2B2/2q2P1r/1P2NR2/rR2P1p1/1p2bq2/6qn/B2knR2 b - - 0 1 illegal: No proof kernel
q4B2/1N3q1P/2bP3R/N1rRpk1p/1p1r3P/1KBbB2B/pQ3n1n/1q2q3 b - - 0 1 illegal: No proof kernel
K1n5/3pnq2/Q1B1n1N1/3r1P1P/rkpB1PpN/2Bb3q/p2b1nB1/2R3R1 b - - 0 1 illegal: No proof kernel
3BR3/1Bp2q2/pkp4p/n1P1q1B1/b1PQ1rN1/1P3q2/2b2r1B/2nqNRK1 b - - 0 1 illegal: No possible last move, all moves rejected
2b3q1/rpn3n1/NK1R1BNN/2r1P1k1/b1p3q1/Q3Nb2/P1P3pp/R3b2B b - - 0 1 illegal: No possible last move, all moves rejected
1K2Rq1n/1p1P4/1p2B1kn/BN2r1Nb/2P1r3/2rPQrR1/p4B1p/2b2B1q b - - 0 1 illegal: No proof kernel
2qR4/pNq5/n1n4R/PrPN3r/2pPpR1b/K3BBn1/4p2n/1Q1bRk2 b - - 0 1 illegal: No possible last move
k1r1nKBN/q1rp1B2/1rn1R2Q/p1pN1n1b/3q1pP1/2P4R/R3RP2/6q1 b - - 0 2 legal: proof: d4 e5 h4 exd4 a4 b5 h5 bxa4 h6 g6 Bg5 Bg7 Bh4 g5 hxg7 gxh4 Kd2 f5 Kd3 h5 Kc4 c5 Kd5 a5 Kd6 a3 b4 d3 e4 d2 g3 h3 b5 h4 e5 a2 b6 h2 b7 h3 e6 f4 c3 Qb6+ Kd5 Kd8 e7+ Kc7 e8R Nc6 b8R Ra7 Bc4 Bb7 Qh5 d1Q+ Nd2 Ba6 Rbd8 Kb7 Kd6 Nf6 Bf7 Be2 Qh6 Bh5 g8B Qa6 Re2 Ne8+ Kd5 Qa4 Ngf3 Qb4 Rhe1 h1N g4 h2 Nf1 Ng3 Nh4 h1R Ne3 Nf5 Ng6 Rh4 Rh1 Qab6 Rh3 Qa4 Rb1 a1Q Rbb2 Qg1 Ra2 Qc7 Rc8 Qb8 Rc7+ Ka8 Rb7 Qb4 Rb6 Rc7 Ra6+ Qa7 Rb6 Rh7 Nh8 Rg7 Ra6 Rg6 Rb6 Ncd4 Ra6 Rb6 Ke5 Qa4 Nd5 Qad1 Rhe3 Rh2 Rh3 Nc6+ Ke4 Qge1 Qh7 Qg1 Ng6 Rb8 Rhe3 Ne5 Nh8 Bg6 Qg7 Rh6 Rh3 Bh5 Rf6 Rg6 Qh6 Rbc8 Ra6 Nf3 Rb6 N3d4 Ke5 Rgc6 Ra6 Rb7 Rb6 R6c7 Rc6 Rb6 Re6 Ned6 Kf6 Nc6 Bg6 Ne8+ Kf7 Qd2 Kf8 Qd4 B6f7
1RN2q1n/3BkB1N/4b1p1/1p3r2/1b1Kpqpq/4RQ1R/nPP1P3/3R2bn b - - 0 2 illegal: No proof kernel
r7/3nP3/Qn3bK1/3prn2/3Pk1RP/1p1pNR1p/rNRB1q1R/3B1n1q b - - 0 1 illegal: No proof kernel
k3B2N/1b1bB3/P1q5/np1p3n/1K2RP1N/2pp2b1/RP3Nnq/2Q1b1rN b - - 0 1 illegal: No proof kernel
1qN1kr2/pB3p2/2PB4/3p1qb1/P1bN1q1n/R1np4/bKQ1RP1b/B6B b - - 1 2 legal: proof: d4 b5 g4 h5 b4 hxg4 Nc3 c5 Na4 cxb4 Nb6 e5 Nxa8 exd4 Kd2 g5 e4 d5 c4 b3 h4 g3 a4 g4 h5 b4 c5 g2 e5 b2 Kc2 b1Q+ Kd2 b3 c6 b2 e6 g3 h6 Nd7 h7 Ndf6 Ba6 Nh6 Ne2 g1Q Ra3 g2 Qc2 Qh2 Re1 g1B Nb6 Be7 Bb7 Rf8 h8B Nf5 Kd1 d3 Nd4 Qf4 Re2 Ne4 Be5 Qa1 Bd6 b1B Bb2 Nh4 Bc3 Qf5 Kc1 Bh2 Bb2 Qa2 Ba1 Qc4 Kb2 Bf6 Rd2 Ba2 Re2 Bd7 Nc8 Bg5 Ne7 Qb8 Nc8 Kd8 Bc5 Nc3 e7+ Kc7 e8B Kd8 Bd6 Be6 Nf3 Qcf4 Nd4 Bd7 Nb6 Bc8 Bd7 Q5e5 Be6 Ke8 Bf5 Qe6 Be4 Qef5 Ba8 Bb7 Nc8 Ba6+ Bb7 B6c4 Bh1+
N2R1B2/B1nP2np/1r1q1Rb1/2pQ4/b4Pkb/3pp2P/2R1r1pK/4rRN1 b - - 0 1 illegal: No possible last move
Rb4N1/BP1prNp1/PKp4p/n1N1P3/3r1pb1/Rn4rN/6n1/3BQ1qk b - - 0 1 illegal: No proof kernel
1R5B/1B1QB2r/1p1K1N1n/rP5P/RNpB1pq1/5P1b/pq4p1/knb2b2 b - - 0 1 legal: proof: g4 h5 c4 d5 cxd5 hxg4 Qb3 e6 Qd1 e5 d4 Na6 d6 Nb4 d5 Nxa2 Qd4 exd4 Kd2 Kd7 Kd3 a5 Kc4 f5 Kc5 g5 h4 b6+ Kc4 c5 e4 a4 b4 a3 b5 d3 e5 f4 Nf3 d2 Ne1 d1B Nd2 g3 Nc2 g2 Nb4 g1Q Bg2 g4 Bb2 g3 Ne4 Ra5 Bd4 Qf6 h5 Rh7 e6+ Ke8 e7 Kd7 Rh4 Nh6 Rg4 Nc3 Rg8 Nb1 Bh1 Bg4 Bf3 Bh3 Bg2 Ke8 d7+ Kf7 d6 Ke6 d8B Kf5 Kd5 c4 Bf3 Bf1 e8Q g2 d7 a2 Be7 Qh4 d8B Qg4 Kd6 Be6 Qd7 Bg7 Bc5 Bb2 Nf6 Bc1 Bb7 Qh1 f3 Qg1 Bd4 Qf2 Bf8 Qe2 Bg7 Qb2 Qc6 Bd7 Be7 Be6 Rb8 Bd7 Bh8 Bc8 Kc7 Be6 Bc5 Ke5 Qd7 Bf5 Bcd6+ Kd4 Bc5+ Kc3 Kd6 Qg5 Be3 Bh3 Bg1 Kb3 Bd4 Qg4 Kc7 Qc2 Kd6 Nc3 Rb1+ Ka3 Rb2 Nb1 Nc6 Qd2 Rb4 Qc3 Ra4+ Kb2 Bg1 Ka1 Nb4 Qb2 Bd4
3qnBN1/1n3P2/q1r1PNr1/1n1N2p1/3pKBp1/pp1P3b/2RNQ1k1/b4R2 b - - 0 1 illegal: No proof kernel
2Rn1K2/3p1PNr/1kn3rp/Rb1N3P/4bqq1/1p1B3r/p1PQRp1B/4R3 b - - 0 1 illegal: No proof kernel
2qB3B/p2ppR2/NnR2nk1/1Pr1n2q/2Pp1KRb/1Qp2b1r/2PN4/7R b - - 0 1 illegal: No possible last move, all moves rejected
bN1k1n1K/4N2P/1BN1pN1q/pr3Q2/1p1n2r1/2p1P2P/R4R1p/b4bBb b - - 0 1 illegal: No possible last move
7R/rB3k2/R3bqNq/rpN1B3/1nP1rpQ1/1KB1qP1B/pP1p3p/7n b - - 1 2 legal: proof: e4 g5 h4 gxh4 a4 b5 d4 Bh6 d5 Be3 e5 Bb6 d6 cxd6 a5 dxe5 axb6 e4 Ra2 e3 Ra4 Kf8 Ra1 Ke8 c4 h5 g4 d5 g5 f5 f3 a5 b7 e5 g6 e4 g7 e2 Kd2 e1Q+ Kc2 e3 Ra3 f4 Qd4 a4 Bd2 h3 Bc3 h2 Qd3 h4 Qe2 h3 Qd2 d4 Qc1 e2 Bb4 Qf6 Rd3 a3 Nd2 a2 Ra3 d3+ Kb3 Be6 Ra6 Ne7 g8B Nbc6 b8B Rh7 Be5 Nf5 Bbc3 Ng3 Ne4 d2 Nc5 Rha7 Qb1 Ke7 Qg6 Nb4 Qg4 Ke8 Bh7 Kf7 Be4 Qf2 Bg2 e1R Ne2 Qe3 Nd4 Re2 Nc6 Re1 Rg1 h1Q Ne7 Qh2 Bb7 Nh1 Rc6 Ra5 Ra6 Ra7 Bf1 Qhf2 Rg2 h2 Ng6 Q2h4 Rg1 Qh6 Bh3 Qd4 Rg2 Re4 Re2 Qf2 Re3 Qg1 Rd3 Qf2 Rd8 Qe3 Rh8
3b1bb1/4NpP1/r5pK/1P1RR1B1/2bp1b2/n2BpB2/2pP1rN1/QBkq4 b - - 0 1 illegal: No proof kernel
3BbR2/pBpnpR2/1p1N3Q/2NP1r2/B1pn1b2/1q1bb1n1/PB1P1k2/K7 b - - 0 1 illegal: No proof kernel
7n/qQ1K1ppN/2P2q1q/1nN1B1p1/1p2kr2/3bpq2/NP1r1RPB/3N3R b - - 1 2 illegal: No proof kernel
nq1N3B/1pnr1N1K/rP2pPn1/1nk2b1n/1rBbP3/R7/3n1Q1N/4Rn1N b - - 0 1 illegal: No proof kernel
2R3K1/1Nr2BP1/2q2qnp/NnN3p1/1Q1q2PP/3n2N1/n2b1kbr/B2Rb2q b - - 0 1 illegal: Other
rB3N1r/n2pBBRB/1PQPRK1k/b4p1b/8/q2nnPb1/b1N1r3/3q1r2 b - - 0 1 illegal: No proof kernel
rB2NbB1/Pp6/b3bQK1/k1qN1rN1/pr6/PPbN1rRq/4qn1n/4R3 b - - 0 1 illegal: Other
r5N1/P2rN1pp/6n1/KbR2qPr/b1QR4/b1Bqb1NP/B2Nr2k/3n1n2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 Kd2 Kf7 f4 Kf6 c4 Kf5 a4 d5 h3 e5 g3 b5 c5 e3+ Kc2 e4 Kb3 e2 a5 e1B c6 e3 c7 d3 a6 d2 a7 d4 Ne2 d3 Nbc3 Nh6 Nb1 Nc6 Ng1 e2 Ra6 Ne5 Ra5 Ng6 Ra4 Ba6 c8N Bf2 Ba3 e1R Nc3 Ng4 Qc2 d1B Na2 Be3 Nf3 Nh2 g4+ Ke4 f5 Kf4 f6 Kg3 f7 d2 Bg2 Qd3+ Nc3 Bd6 Rf1 Re2 g5 Rd8 Ne7 Rd7 Rh1 Qf5 Re1 Nf1 Bb2 Bdc5 Ng8 Bd6 Nd4 Kh2 Ne4 Bc5 Ng3 Bd6 Bd5 Bf8 Ka2 b3+ Ka1 b4 Nf3+ Kg2 Bd4 b2+ Ka2 Bb5 Kb3 b1R+ Bb2 Bc6 Kc4 b3 Qd3 Bc2 Rc1 d1N Nd2+ Kh2 Be5 Ba3 f8N b2 Rb4 Nf4 Ng6 B2a4 N6e7 Ng6 Bd4 Bcb5+ Kc5 Qg4 Kb6 Qf5 Rc5 Rc1 Be5 b1Q Ka5 Rc4 Bc3 Rh4 Rd4 Rh5 Ba2 Qc2 Qc4 Qce4 Rcd5 Qd3 Rc5
Nn1bbkB1/qr1p3R/5R1p/BrBqp1qP/4PN2/Bq3P1K/2q2rn1/2Q5 b - - 0 1 illegal: Other
1N6/2K1b3/6nk/Nrb1pb1n/1pp1R1B1/2RrPRRb/1BPQ1Pq1/r1n3q1 b - - 0 1 illegal: No proof kernel
1QR4k/pp1Kn2p/1b3qrq/PP1bBB1P/3b3N/7B/1r1B1NRr/4nr1n b - - 0 3 legal: proof: e4 f5 g4 fxg4 d4 c6 d5 cxd5 Be2 dxe4 Bf1 e3 Ke2 Kf7 Kd3 g5 Kd4 Kg7 Kc5 e5+ Kb5 d5 a4 e4 h4 e2 f4 e1R c4 e3 b4 d4 c5 e2 c6 g3 f5 g4 c7 d3 h5 g2 a5 g3 Ra4 d2 Nc3 Na6 Nb1 Be6 c8B Bc5 Nh3 g1R Rh2 g2 Ra2 Bb6 Ra3 Qf6 Rd3 Bd5 Rc3 Rh1 Nf2 g1B Bh3 Ne7 Qc2 d1Q Nd2 Kg8 Nf3 Nc5 Nh4 Nd3 Bd2 Rf1 Rc6 e1N Rg2+ Qg4 Rc5 Qh6 f6 Rh2 Bf5 Re8 Rc8 Qgg5 f7+ Kg7 Qc7 Rhg8 f8B+ Kh8 Qe5+ Qgf6 Qb8 Rg6 Bg7+ Kg8 Ng4 Nf2 Bh8 Nh1 Nf2 Qd6 Be5 Qf6 Bd7 Kh8 Bdf5 Bd8 Kc5 Reg8 Be6 Bb6+ Kd6 Re8 b5 Rf8 Nd1 Bgd4 Kd7 Rfg8 Bef5 Re8 Rc1 Rf8 Nf2 Rc8 Qd6 Rc2 Qc7 Rb2 Qb8+ Nc8 Ke8 Ne7 Rc8 Bbc5 Kd8 Bb6+ Kd7+
1Rk5/1Rr1p1p1/qn1b1BB1/1QNR4/p1N1PPP1/bqRb4/4r1nr/K2b2q1 b - - 0 1 illegal: Other
2n4b/2r3NP/nkB3K1/r1p2N1R/1BBq2b1/2Pb1Q1p/1qp4P/B1b1R1bb b - - 0 1 illegal: Other
2rQ2N1/k2qbBRR/r1NBp2P/n1p1K3/1bPp4/bb6/1n2P3/nrN1r2N b - - 0 1 illegal: No proof kernel
1KR3Br/2n5/p1Q1p1qP/2B1PbNq/1bB4p/PR1Br1p1/2r1b2n/N2q2k1 b - - 0 1 illegal: No proof kernel
qB2kR2/1brR4/3p1r1q/3np2R/r1p1qpR1/B1n2Pb1/N1PKP2Q/3n1N2 b - - 2 3 illegal: No proof kernel
4b1k1/pqq1n1Pp/3p4/nR1P1r2/bB1nqBQ1/2N2Rr1/N2pB2P/K3b1B1 b - - 0 1 illegal: No proof kernel
2br3r/1q2n1rr/pk2R3/n2ppp1B/Q3b3/PPN1PR1r/NB3b1B/B2K4 b - - 0 1 illegal: No possible last move
1K1bnbR1/N6p/kpp1bqb1/1B4rR/p2QPn2/P2B3P/B2b1B2/1N2n2r b - - 0 1 illegal: No possible last move
1N6/q3np1n/rp1nn3/p2RK2B/n4QBk/pbB1bPb1/PrB3PR/5N2 b - - 0 1 illegal: No possible last move
5Rqb/RK1N3Q/rP2p3/3p1Rpn/3P2Pk/qb3NRp/3B1n1q/r1nBn3 b - - 0 1 illegal: No proof kernel
6R1/NQbRpR2/3PR1Kp/2k3pB/r2BPqP1/N1br1b2/bq1np3/n5q1 b - - 0 1 illegal: No proof kernel
4K1n1/1nP4r/1kp4p/1Nr1pQBB/2brP3/1Rq2nbP/p1q1r1N1/RBB5 b - - 0 1 illegal: No proof kernel
r1bq3R/1R1pNQB1/B1pbrp1N/2PBp3/1k6/4n1b1/B1P1Pq2/2K1b1rn b - - 0 1 illegal: Other
1BQRb1Bq/kpb1n2p/2p1RBqr/8/1P1P3b/p2r2n1/P3b1Bq/KNN5 b - - 0 1 illegal: No possible last move
n6b/1rp2B1P/b1Kp1pN1/b1NRqB1r/5P1q/B1kP4/rbp2n1R/Q1B5 b - - 0 1 illegal: No proof kernel
1K1R3B/1ppR1PN1/1r1rBnrQ/b1q5/q1bnp2k/qP6/B3Pp1B/1N5q b - - 0 1 illegal: No proof kernel
3n2n1/p1Qq3p/1Rnr1k1r/P1Rp1rR1/1B5b/pb3P1P/RN1qB3/5KnN b - - 0 1 illegal: No proof kernel
2rq2k1/Pp3ppb/1qR1b2b/2NpnNP1/1qB2R2/R3p1K1/r2P2n1/R2QB3 b - - 0 1 illegal: No proof kernel
B3n3/pp1N1Q2/2p1b2q/nnKN2k1/1P1p4/P2qr2B/R1NPbNpr/2R3b1 b - - 0 3 illegal: Other
R3q1r1/1pb3B1/r1pPp1p1/1B1N3p/3nNn1N/1N1q4/2P1PknQ/1b2r1RK b - - 0 1 illegal: No proof kernel
K2b3R/RQbn4/4pkR1/r1p3N1/B4p1N/r1n1BP1p/p1bRPq1P/1rr5 b - - 0 3 legal: proof: c4 g5 a4 d5 f3 dxc4 a5 g4 Qb3 g3 Qe3 b6 Qf2 bxa5 Kd1 gxf2 Ra2 a4 Ra3 Be6 Ra1 Bc8 Kc2 f5 Kc3 Kf7 Kb4 h5 Kc5 a5 g4 a3 d4 c3 b4 a2 d5 h4 d6 c6 d7 f4 g5 c2 b5 a4 g6+ Kg7 b6 a3 b7 Kf6 Bh3 f1R Nc3 Ra5+ Nb5 Bg7 Bd2 Rb1 Be3 e6 Bf5 c1R+ Bc2 Ne7 Nh3 Nd5 Rd1 Nc3 Ng5 h3 Rd2 Qb6+ Kd6 Re8 d8R Nd7 b8Q Ba6 Nd4 Bd3 Ba4 Bc2 Nf5 Qd4+ Kc7 c5 Qb3 Bf8 Kb7 Be7 Rb8 Bd8 g7 Bc7 g8R Rc8 Bg1 Qf2 Nh4 Bd8 Ra8 Rc6 Ra7 Rca6 Qb6 Rb4 Rb1 a1B Rh8 a2 Ka8 Rb3 Qc7 Rab6 Qb7 Ra3 Rb4 Bc7 Re4 Rbb1 Re5 Qg3 Be3 Qf2 Rf5+ Kg7 Nf7 Nd1 Qa6 Bf6 Qb7 Bfd8 Rg5+ Kf6 Rgg8 Nc3 Ng5 Bd6 Rg7 B6c7 Rg6+
bb1RB1r1/1r1pP2p/Nb3p1q/BK1B1p2/Q5n1/kB2n1Nn/b1p2P1P/1R6 b - - 0 1 illegal: No proof kernel
R2B2K1/2pn1r1B/q1b1qP2/qnqB1pB1/2R1p1p1/2b1PP2/2p3r1/N4NQk b - - 0 1 illegal: Other
QnBN1q2/2N3bp/Npkp2P1/1pbn1b2/3B1r2/NPpR4/1r1Pp2K/5Rn1 b - - 0 1 illegal: No proof kernel
Br6/K2p2RQ/p3B2N/2B1Rp2/3ppbPn/2N2b2/1pbPkPq1/qB1rn3 b - - 0 1 illegal: No proof kernel
2R4R/pqB2bKB/1p2qp1n/1B2QP1r/p2N2p1/1Pp1q1b1/P1N4k/3rnB2 b - - 2 3 illegal: No proof kernel
1Bk1bNnr/2Rp4/pb5p/3R4/1rpP2n1/Np1N3K/1qPpQ1pP/3BN2b b - - 2 3 illegal: No proof kernel
r3B2Q/1QB1rq1r/n1RR1B2/q1P4r/1r2P2p/N7/2P4k/n3K1Qq b - - 0 1 legal: proof: b4 a5 bxa5 e5 f4 exf4 h4 b5 a4 g5 d4 gxh4 a6 c5 dxc5 b4 a7 b3 a5 Bh6 a6 Bb7 axb7 Bf8 Nd2 Bd6 Nc4 Nc6 Ne5 Bb8 axb8B Nb4 Nc6 Nxc6 e4 Ke7 g4 Ke6 g5 d5 g6 h5 g7 f5 Bd3 f3 Bc7 d4 b8Q b2 Ba5 b1R Ra4 f2+ Ke2 f1Q+ Kd2 h3 Qg4 h2 Qa7 Ke5 Qg2 Kf4 Qe2 Kg3 Qd1 h4 Bb6 f4 Ra5 f3 Rb5 f2 Rb3 Nf6 Qe1 Nd5 Qa6 Ndb4 Qb7 Rh7 Rb2 Na6 Nf3 Na5 Bb5 d3 Be8 Nb3+ Kd1 d2 g8Q+ Kh3 Bc7 Na1 Rb6 Rb4 Qh8 Re7 Rg1 h1Q Ne5 Kh2 Bb2 Qc4 Rg8 f1R Rc6 Rf5 Rgg6 Rh5 Rgd6 Qf7 Nc4 Rh7 Ke2 d1R Na3 Rd5 Bf6 Rdh5 Qf1 Re6 Ke1 Re7 Bb8 Qb6 Bc7 Qa5 Qg1+
5rrB/P7/Pnb1Rn2/Q1B1K2Q/6k1/Pq2RppN/4rB2/4nq1R b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 gxh5 e6 c4 b5 cxb5 a6 bxa6 Bc5 Bg5 Ba7 Bc1 Bb6 f4 Ne7 e4 Ba7 e5 Bb6 f5 Kf8 f6 Ba5 Bh3 Ke8 bxa5 Ng8 Bf5 exf5 e6 Nc6 e7 Bb7 Nc3 Bc8 Ne4 Nb8 Ng5 Bb7 Kf1 Bc8 Ne6 fxe6 Ke1 Kf7 Ke2 d5 Kd3 g5 e8R e5 h4 e4+ Kc2 g4 a7 g3 a6 d3+ Kc3 d2 Kd4 f4 a3 e3 h6 Kg6 h5+ Kf5 h7 e2 h6 e1N f7 f3 f8Q+ Nf6 Qa4 d1Q+ Bd2 Bb7 Re7 Rg8 h8B Qb3 h7 Nd7 Re3 Nb6 Qc5 Bc6 Bb4 Kg4 Ke5 d4 Nh3 d3 Qaa5 d2 Bg7 d1R h8B Rd3 Ra2 Qd7 Rae2 Rd2 Qd5 Rb2 Bc5 Rac8 Qf7 Qdd1 Bgf8 Qc1 Bd4 Qb1 Bfc5 Rcf8 Rc3 Qd3 Bf2 Qbd1 Ke6 Q1c2 Re5 Qf1 Rce3 Qcc4+ Kd6 Qc2 Re6 Qb3 Ke5 Re2 Qh5+
r1Q1N2b/2P3b1/qPR3r1/1bB5/1P2Bn2/2kpQp2/N3r1N1/1Kb2Q2 b - - 0 1 illegal: No possible last move
5r2/8/2rPBR2/1n1nbK2/1B6/bkqPqBq1/2PR1b1N/2Qb1RnQ b - - 0 1 illegal: Other
2Q4K/Pkr3R1/q1nq1R1b/1b4nP/Qp1rb3/2B3NR/PQ2n2b/7B b - - 0 1 legal: proof: c4 c5 d4 a5 b4 d5 bxa5 h5 e4 f5 g4 hxg4 exf5 cxd4 cxd5 e5 Nd2 d3 Ndf3 Bd6 Nd4 exd4 Bh6 Bc5 Bc1 Bf8 Kd2 Kd7 h4 Kc7 f4 b5 f6 g5 a6 g3 a7 g2 d6+ Kb7 d7 b4 f5 g4 h5 g3 f7 Qb6 d8R Nc6 f6 Nh6 Rh3 Bd7 Ne2 g1B Bg2 Qa6 Bh1 g2 Ng3 Rc8 Bb2 Bh2 Qa4 g1N Bc3 Rc7 Rf1 Ne2 Rf3 Bg7 f8Q Nf7 Qc5 Rh6 Qe5 Ng5 f7 Rd6 f8Q Bh6 Rf6 Bf5 Qfe8 Be4 Rd7 Rd5 Rg7 Rd6 Ke1 d2+ Kf2 d3 Ke3 d1Q Qh8 d2 Qg8 Ng1 Kf4 Rd4 Qh8 Ne2+ Kg4 Bd5+ Kf5 Bc4 Kg6 Bb5 Rh4 Qc2+ Qf5 d1B Rh3 Qd2 Qb1 Bb3 Qb2 Bd5 Qd8 Qf4 Qg8 Qd6 Qe8 Nf7 Kh7 Ng5+ Kh8 Be4 Qc8+
n1k2nN1/5bnQ/3p2B1/5B1Q/P2r1rP1/2qB3n/2Pn2r1/2KRNN1n b - - 0 1 legal: proof: d4 c5 dxc5 a5 a4 f5 Ra3 f4 b4 axb4 e3 bxa3 exf4 Qb6 f5 Qd8 g4 g5 f4 Bh6 f6 Qc7 f5 Qd8 Bf4 gxf4 Nd2 Bg5 Nb1 Bh4+ Ke2 Bg3 hxg3 Nc6 Ke1 Nb8 Kd2 b5 g5 e5 c6 h5 g6 b4 g4 b3 g7 f3 c7 d6 f7+ Kd7 f8Q f2 f6 b2 f7 a2 Qe1 a1R Nf3 e4 Bc4 f1N+ Kd1 e3 Qf2 e2+ Ke1 h4 Ng1 h3 Ba6 h2 Nf3 Ne3 Kd2 e1N Qe2 Nd5 Nh4 Nge7 g8B Nd3 Qf1 Nf2 Qd1 Nf5 Nf3 Nh3 Qh6 Ng7 Qh5 Nb6 Bd3 Qf6 Ne1 Ra7 Be4 Na8 Bgh7 Re8 Rg1 h1N Bhg6 Qe5 Qe2 Qc3+ Kd1 Ra3 Nd2 b1N Nf1 Nd2 Qd3 Bb7 f8N+ Kc8 Kc1 Nd7 Nh7 Nf8 Nf6 Bd5 Ng8 Bf7 Qf3 Re6 Qff5 Rb3 Qh7 Rb4 Qfh5 Rd4 Bd3 Re2 Bge4 Kd7 c8B+ Kc7 Bg6 Rg2 Bcf5 Kd8 Bfe4 Kc8 Nf3 Rb7 Ne1 Rbb4 Bef5+ Nfe6 Ng3 Kd7 Nf3 Re4 Rd1 Rbd4 Nf1 Rf4 Bfe4 Kc8 Ne1 Nf8 Bef5+
2QQ3K/1n2B3/2PRP3/B1Bq1r2/Q2P1b2/Npn5/5pn1/r1bnbkR1 b - - 0 1 illegal: No possible last move, all moves rejected
2QRr1b1/N4B2/1Rp1Rb2/2p1QbQ1/1bq2q2/P2B1Pn1/1r2P3/k2K1b2 b - - 0 1 legal: proof: d4 f5 b4 e5 dxe5 h6 c4 b6 b5 Nc6 c5 Nb4 Bg5 hxg5 g4 Nd5 Nc3 Ndf6 Nd5 Nh5 gxh5 bxc5 b6 f4 b7 f3 Nb6 axb6 Nxf3 Rb8 Ng1 Ra8 b8Q Ke7 h4 Ke6 f3 d5 h6 g4 h5 g5 h7 d4 a3 Kd5 h6 Kc4 e6 Kc3 e7 Kb2 e8B g3 Bb5 g4 Ba6 g2 Rh3 g3 Bb5 d3 Rh2 Qd4 Rh4 Bh3 Rg4 Nf6 Bc6 Nh5 Rf4 Qc4 Qa7 Rb8 Qa8 Re8 Qda4 d2+ Kd1 Be7 Re4 Bf6 Re5 b5 Qb7 b4 Qc8 b3 Bb5 c6 Re6 Bc3 Qa5 Bb4 Rb1+ Ka2 Ba6 b2 Qad8 Rhf8 h8Q Rg8 Rc1 b1B h7 Bbf5 Qe5 Qf4 Rc3 Ka1 h8R Rg7 Qg5 Rb7 Bd3 Qc4 Kc2 d1B+ Kc1 Bc2 Rf8 Bb1 Kd1 Ba2 Rc2+ Qd4 Rb2 Qf4 Ref6 Bg8 Re6 Bhg4 Nh3 g1Q Nf2 g2 Ne4 Qd4 Nd6 g1B Bg2 Ng3 Bh3 Qc4 Nb5 Bd4 Na7 Rb5 Qec7 Bf6 Qe5 Bh5 Bg4 Bhg6 Bh5 Bh3 Qd5 Bg2 Qde5 Bf5 Bg6 Bf1 Bf7 Re7 Rd8 Re8 Rc2+ Bc3 Rd2 Rb2 Rc2 Ba5 Rc3 Bb4 Rb3 Ba5 Rb7 Bb4 Rb6
1q6/4Q1nQ/PN1b1BBb/bNP1r3/1p6/bk5P/2R3pQ/K1nb1qB1 b - - 0 1 legal: proof: e4 a5 b4 b5 g4 h5 a4 hxg4 d4 f5 exf5 c5 dxc5 Ra7 c3 Rb7 c4 axb4 Ra3 bxa3 Qd5 b4 Qd1 Rb5 cxb5 Rh3 Kd2 Rh7 Ke1 Rh8 Kd2 Kf7 Kc2 g5 f4 e5 f6 Ke6 a5 d5 a6 a2 Kb2 a1B+ Ka2 e4 h3 d4 b6 Kd5 f7 d3 b7 Kc4 f5 e3 f6 e2 Rh2 e1B Qa4 g3 Ne2 g4 Nec3 Nc6 b8B Nge7 Nd5 Rh5 Bb2 Nf5 Qa3 Na5 Bc3 Nb3 Qa5 Bb2 Be2 Bd2 Qb6 Ng7 Nf4 Ba3 Nd5 Nc1+ Ka1 Kb3 Qd6 Be7 Rf2 g2 f8Q g1B f7 g3 Qg8 g2 f8Q Bh6 Bf6 d2 Bd3 d1Q Rc2 Bh2 Qh7 Bg4 Bg6 Qf1 Nbc3 Bd1 Nb5 Qc8 Bc7 Bd8 Qfe7 Qb8 Qde5 Rf5 Bd6 Ba5 Nb6 Rh5 Qf4 Rg5 Bde5 Bg3 Bd4 Rh5 Bg1 Rf5 Qg4 Bd6 Qf4 Re5 Qh2
K6N/Pr3p1Q/p2P2qr/1rkRN3/Q7/3rn2b/Pq3nN1/BR1Qq3 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 a6 b4 Bf5 b5 Bc8 d4 c5 Bh3 cxd4 Bg4 Bc5 Bd7+ Kf8 Be8 Ba7 Bc6 bxc6 b6 c5 bxa7 c4 Nd2 Ke7 Nb1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 g5 h4 d3 h6 g4 h7 g3 h5 g2 h6 d2 e3 c3 Ne2 g1R Bb2 f3 Na3 f2 Nf4 f1Q Rh4 c2 Nc4+ Kc5 d6 c1Q Ne5 Bh3 Rb1 Ne7 Ng2 Nf5 Ba1 Nc6 Rf4 Qb6 Rg4 Rhb8 h8N Qbb2 h7 Rh1 Rf4 Qg1 Rh4 Kb6 Kd5 Rb7 Rd4 Rab8 e4 Rh2 Nd7+ Kb5 e5 Qe1 e6 Qc2 e7 Ne5 e8Q Nd3 Qe4 Nf2 Ne5 Qd3 Qeg4 Kb6 Qa4 d1R Qf3 Rd2 Qfd1 Rh1 Nhg6 Qg3 h8Q Rd3 Qh7 Qg4 Nh8 Qg6 Qd7 Bg4 Qe8 Rh6 Qea4 Bh3 Qc4 Ka5 Kc6 Rb5 Kc7 R8b7+ Kc8 Kb6 Qca4 Rc7+ Kb8 Kc5+ Ka8 Ne3 Nf3 Re7 Ne5 Reb7 Rd5+
KB4n1/n1NP4/4QBQ1/1b5n/k1N1P3/B2P1bnp/b3pn1r/RN2b3 b - - 0 1 legal: proof: h4 b5 a4 c5 b4 g5 f3 gxh4 Ra2 Qa5 Rb2 Bh6 axb5 Qc7 b6 Qd8 b5 Bf8 Rb4 cxb4 c4 e5 c5 d5 Ba3 a5 Bc1 e4 e3 Qe7 Bc4 dxc4 d3 Qe5 Qc2 Qd4 exd4 e3 Qd1 Ra7 Nc3 Re7 Nb1 Re4 fxe4 Bd6 Qf3 Be7 Qd1 Bf8 Ke2 Kd7 Kf3 f5 g4 h5 g5 f4 g6 c3 g7 a4 b7 h3 d5 a3 b6 h2 d6 Kc6 d7 Kb5 c6 h4 c7 b3 Nd2 b2 Qb3+ Bb4 Nh3 b1B Ng1 a2 Qe6 a1N Qf6 c2 Nc4 Nc6 b8B Ba2 b7 Na7 Qh6 Be1 Ne2 Ka4 Ba3 c1N Qe6 Nc2 Kg4 f3 Kf5 f2 Ke5 f1N Kd5 Ng3 Nc3+ Kb3 Kd6 Nh5 Nb1 Ka4 Kc5 Rh6 Kb6 Ne2 Rf1 h1B Rg1 Ngf6 g8Q Neg3 Qg6 e2 Ka6 Bf3 Rf1 Nc6 Ba7 Ng8 Bd4 Na7 Bf6 Rh8 Kb6 Ne3 b8B Ba6 c8N Rh7 Ne7 Ng4 Nd5 Bb5 Kb7 Nf2 Nc7 h3 Bc1 Rg7 Ka8 Nf5 Qge8 Rg2 Ba3 Nfg3 Q8f7 Rh2 Qg6 Bc3 Nbd2 Ba5 Ra1 Bb4 Nb1 Bd2 Bh8 Be1 Bf6
2kBb3/P2Qqr2/2pn2K1/1pBQrr1P/1p2QBn1/Rb2R3/P2n4/3N4 b - - 0 1 illegal: No possible last move, all moves rejected
k1B3r1/R3bqn1/1KQ1R2P/1p6/5P2/1NQp1P1q/pbR5/Nn1b2rQ b - - 0 1 legal: proof: g4 c5 c4 f5 a4 d5 d4 h5 gxh5 f4 e3 cxd4 cxd5 a5 b4 axb4 Ba3 bxa3 exf4 Ra5 Nc3 Ra7 Nb1 Ra8 Kd2 Kd7 Kd3 Kc7 Kc4 e5 Kb5 g5 h4 a2 a5 d3 h6 e4 h7 g4 h5 e3 h6 g3 a6 e2 a7 e1Q Na3 g2 Qf3 Qh4 Rb1 Nc6 Ne2 g1B Bh3 Bg4 Nd4 Na5 Nb3 Ne7 Rh2 Nf5 Nc2 Rg8 h8Q Be7 Qh1 Qe6 Nca1 Nc4 Qc3 Bd1 f3 Bd4 Rc2 Qf7 d6+ Kc8 Rbb2 Rg1 d7+ Kc7 d8R Ng7 Bf5 Qh3 Rd6 Rg8 a8Q b6 Qa4 Kb8 Bc8 Nd2 Re6 Nb1 Ka6 Be5 Qac6 B5f6 Rg2 Be5 Rbc2 b5 Kb6 B5f6 Rg4 Be5 Rg5 B5f6 Rd5 Be5 Rd7 B5f6 Rb7+ Ka8 Qe1 Bb2 Qe5 Rd8 Qec3 Rg8 Ra7+
1nrR2k1/pN1n1b2/Q1r3bP/5Q1p/n1rpB2P/1Qn1R3/5P2/2R3KB b - - 0 1 legal: proof: g4 e5 e4 f5 d4 exd4 a4 c5 e5 b5 axb5 c4 g5 h5 Bd2 g6 Nc3 Bh6 Ne4 fxe4 gxh6 c3 Ke2 cxd2 c4 Kf8 h4 d5 b4 e3 c5 g5 c6 g4 c7 g3 b6 g2 b5 Bh3 e6 Nc6 b7 Bf5 b8Q Bg6 b6 Nf6 b7 Nd7 e7+ Kg8 Qb3 d1N e8B Nb2 Qc8 Na4 Nf3 Ncb8 Ng5 g1N+ Ke1 e2 Ra3 d3 Ne4 Bf7 Bg2 d4 Nc5 Rh7 Qa2 Rg7 Be4 Rg6 Qe6 Rf6 Qa6 Rc6 Rc3 Bg6 Rc1 Bf7 Rh3 Bg6 Re3 Bf7 Kd2 e1R Bh1 Ne2 Be4 Ndb6 Qf5 Nec3 Bd7 Rh1 Be8 Rh3 Ke1 d2+ Kf1 d1B Kg1 Bc2 Bd7 Bd3 Be6 N6d7 B6d5 Bc4 Bh1 Rf3 Be4 Bg6 Qa5 Bcf7 Qb5 Na6 b8Q Rh3 Q8b6 Rc8 Nb7 Nab8 Q6a6 Rc4 Qb3 Rf3 Qg4 Rf6 Qf5 Rfc6 cxd8R+
2B1Nrrq/1q1b4/2B3rB/3nb2P/K1R1Q1PQ/2P4q/3NNqk1/n1q2n2 b - - 0 1 legal: proof: d4 e5 b4 c5 f4 exf4 Qd3 cxd4 Qxh7 g5 a4 b5 Ra3 g4 Rf3 gxf3 axb5 Be7 Kf2 Bd6 Ke1 Bf8 Kd1 Ke7 h4 Kd6 g4 Kd5 e3 a5 c3 f5 Kc2 Ke4 Kb3 d5 h5 f2 b6 d3 b7 d2 b5 d1Q+ Kb2 a4 b6 f3 Bh3 f1Q Bg2 a3+ Ka2 d4 Qh6 d3 Bd2 f4 Qd6 Bd7 Rh4 Ne7 Qc6+ Nd5 Rh2 Rg8 Rh1 Na6 b8Q Bg7 b7 Qf2 Rh2 Be5 Ne2 Qc1 Kb3 a2 Ka4 Nb4+ Qa7 a1N b8N Rg6 Na6 Nbc2 Nc7 Qh8 Ne8 Qh1 Bc1 d2 Qa5 Rb8 Qd8 d1Q Qh4 Rd8 Bd2 Qc1 Bf1 Qhg2 Rh1 Qh3 Bg2 Rb8 Re1 Rc8 Bf1 Qfg2 Rd1 f2 Re1 Kf3 e4 Nce3 Rd1 Bf6 e5 Bg7 e6 Be5 e7 Rd8 Nc7 Rdg8 e8B Qgh1 Ng3 Q1g2 Ba6 f1Q Bc8 Qff2 Ne2 Nf1 Be3 Qgh1 Rd4 Kg2 Rc4 f3 Bf4 Qd4 Bh6 f2 Nd2 Qb6 Bf7 Q1h2 Ne8 Qb7 Bf4 Ng3 Be6 f1R Bh6 Rf3 Bf5 Nf1 Be4 Qg1 Ka5 Qf2 Qa4 Nc7 Bc6 Nd5 Qb4 Rff8 Ka4 R6g7 Qb1 Rg6 Qe4+
3K2Q1/3PBR1r/qQBr1n2/2Q1PbNn/k2r3b/1b2b1RB/5b1P/4q2n b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 d5 c4 g5 cxd5 h5 Nc3 b5 axb5 Be7 Qa4 Ba3 Nd1 Bf8 Ne3 f3 Qf4 gxf4 g5 Bc5 Ng4 hxg4 Ra5 Bd6 Ra1 Bf8 Kf2 Kd7 e4 f5 b4 c5 d4 a5 e5 c4 d6 a4 b6 Kc6 d7 Kb5 b7 g3+ Ke1 g2 Kf2 a3 d5 a2 g6 Ka4 g7 c3 b5 c2 b6 Ra6 d6 Rh7 Bb2 c1B Bd4 Be3+ Ke1 f2+ Ke2 f3+ Kd3 f4 Kc4 Nf6 Kc5 Be7 g8B Nh5 Rc1 a1R Bd5 Bh4 Nh3 g1B Rc3 Qf6 d8Q Bf5 Qc7 Rd1 Ng5 Nd7+ Kc6 Qg6 b8Q Ndf6 Bg2 f1B d7 f2 Qg8 f3 Bc5 Bc4 Be7 f1Q Bh3 f2 Qcc8 Rd4 Kc7 Qh6 b7 Qe1 b8Q f1N Kd8 Bb3 Qc5 Nfg3 Qbb6 Bgf2 Rf1 Nh1 Bdg2 Bf4 Rg3 B4e3 Qb7 Rad6 Qbb6 Qg6 Bf3 Qf7 Ba8 Qc4 Bc6+ Qb5 Bhg2 Bg6 Qc2 Bg1 Qd2 Ne8 Rf6 Bf5 Qc1 Bgf2 Rf7 Nef6 Qcc5 Rc4 Ba8 Qa6 Bh3 Rcd4 Bc6+
n1Nq3b/2QR2q1/KN3rr1/R1q1q1P1/1P1b3R/r5PQ/1r1qn1kN/6B1 b - - 0 1 legal: proof: d4 e5 f4 exf4 a4 g5 e3 c5 h3 cxd4 Bc4 b5 axb5 g4 Ba2 Bb7 Bd5 Bc6 Bf3 gxf3 Kf1 Be4 Kf2 Bf5 Ke1 Bg4 hxg4 Bd6 Ra4 Bc5 Ra1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 b4 Ke4 b6 a5 Kb5 f5 c4 d5 b7 h5 g3 h4 g5 h3 c5 d3 c6 d4 c7 f2 c8R f1Q Rc7 d2+ Kb6 f3 Ra3 h2 Bb2 d3 Qe2 d1R Ra2 d2 Qf2 f4 Qe2 a4 Bc1 f2 Rb2 f3 Nh3 a3 Rc2 a2 Bb2 a1B Kb5 Nc6 b8Q Bc5 Bf6 Qe1 Na3 f1Q Ng1 f2 Bd4 Rh6 Qb7 Ne7 Qb8 Rb1 Ra2 d1Q Ra7 Rb2 Nf3 Nd5 Rb7 Nb6 Ra7 Rg6 Rd7 Qdd2 Qc7 Qg1 Nc4 f1R Qg2 Ra3 Qh3 Na8 Nb6 Qgf2 Ne5 Qff6 Ng4 Kf3 e4 Qg7 Bg1 Bd4 e5 Qee3 e6 Qee5+ Nd5 Rf2 e7 Rf1 e8N Rf2 Qh6 Kg2 Nd6 Rff6 Nc8 Bc5 Ndb6 Nd4+ Kc4 Ne2 Kb5 Bd4+ Rd5 Rab3 Ka6 Re3 Raa5 Ra3 Rd7 Qc5 Bf2 Qe5 Rf1 h1Q Bg1 Qh3 Nh2 Qhf5 Rf4 Qfc2 Qh5 Qcc5 Qh3+ Kh1 Qa7 Qb8 Qh6 Qge7 Qh8 Rb1 Rd6 Rf7 Qh7 Bh8 Nf3+ Kg2 Qh4 Rff6 Rd7 Qg7 Nh2 Qbe5 Qc7 Bd4 Qg4 Rb2 Qe6 Qde7 Rh4 Qd8 Qh3+
3b2q1/3K1R2/rb2B3/3nP1BR/Q1N4q/Q2R1P2/bPr1rn2/Qk1qr2q b - - 0 1 illegal: No possible last move
3B3n/2q1bbKn/rR1q4/qPnQ2QR/3N1r1q/3nB1P1/1PR3Bb/5k2 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 a5 axb5 e5 Nf3 exf4 Ne5 a4 Nf3 a3 Ng1 a2 Rh3 axb1Q Rh2 Nd7 Rh1 Nb8 Kf2 Kd7 Kf3 Kd6 e4 Kc5 d3 Kd4 e5 h5 d6 c5 d7 f5 e6 h3 e7 h4 e8R h2 Qa4+ c4 Re6 h3 Re7 Qa2 Re8 Be7 Qb3 c3 Qa3 c2 Rf8 Rh4 Qa5 Nf6 Qc7 Ra6 Rf7 Qa5 Qb7 Nc6 Rb1 Nh7 Rg7 Qdc7 d8B Ne5+ Kf2 f3 Kg3 f2 Qa8 Nf7+ Bf4 c1B Qb7 Nh8 Be5+ Ke3 d4 Be6 d5 Rf4 d6 Bf7 Bd3 f1Q d7 Qd1 Bf1 Qdd6 Ne2 Kd2 Rg6 Ke1 Rg1 h1Q Nd4 h2 Qd5 Qa7 Kh3 Q7c7 Bf6 Kf2 Bg5 Be3 g3 Qe4 Ne2 h1N Rc1 Bd4 Rc3 Ke1 Rg2 Bg1 Rc2 Bh2 Bh6 Qeb4 Nd4 Qba4 Rc5 Q4b4 Rgc2 Nf2+ Kg2 Nd3 Kh3 Qc4 Bg2 Qca4 Bh1 Kf1 Be4 Rf3 Be3 f4 Kg4 Rf2 Kh5 f3 Nb3 Qd4 Kh6 Q4f6 Nd4 Qh4+ Qh5 Rd2 Rd5 f2 Kg7 Rd1 Rf5 Ra1 Qg5 Ra4 Ba8 Rb4 Nf3 Rf4 Nd4 Ke1 Re5 f1N Bg2 Nd2 Rh6 Ne4 Rh5 Qdb6 Re6 Nec5 Qd5 Qbb8 Rb6 Qd6 Bc7 Qb7 d8Q Qbc6 Qg8 Qcd7 Bd8 Q7c7 Be4 Kf1 Qg5 Bg6 Q8d5 Bf7 Bg2+
1N1B3q/2r4b/5Q1P/P2Rb3/5PKn/2nrQ1RR/q2q2Br/n1n1kBq1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 f4 exf4 axb4 Na3 g6 Nb1 g5 f3 g4 Nc3 h6 Ne4 gxf3 g4 h5 g5 Ra3 Nf2 Ra8 Ng4 hxg4 Kf2 Kd7 Kg3 Kd6 d4 e5 a4 c5 h4 b5 a5 b3 h5 c4 g6 b2 g7 b1N Nh3 c3 Nf2 c2 Ra2 b4 Rh4 b3 Bb2 c1N Bb5 e4 Bc4 e3 Bb5 e2 Ra1 e1Q Rh3 Qd2 Qe2 Ra7 Nd3 f2 Ne5 f1R Nf3 Nc3 Qh2 Nh6 g8B Na6 Ne5 Nc5 Nd7 Bg7 Ba6 Rd1 Bf7 Rc7 Bb7 Be5 Nb8 Bf5 Ra3 Bh7 Qg1 Qf8 Kh4 g3 Qe3 Nf5+ Kg4 g2 Be8 Qf6 Bb5 Nh4 Bf1 g1Q+ Rg3 Qd8 Ba1 b2 h6 b1Q Ba8 Qba2 Bc6 Re8 Bb2 Ke7 d6+ Kf6 d7 N5b3 d5 Na1 d6 Re6 Bb7 Qh8 d8R Ree7 d7 Kg6 Kh3+ Kf5 Bbg2 Re6 Rb3 Rd6 Ba3 Rd3 Be7 Re1 Ra3 Re2 Bf6 Ke6 Kg4 Kd6 Bh3 Kd5 Be7 Rh2 Bhg2+ Kc4 Bg5 N3e2 Bf6 Rd6 Rd3 Nc3 Rh3 Rd4 Rg8 Kb3 d8Q Kc2 Rg6 Rd6 Rd5 Kd1 Qf8 Rdd7 Bd8 Rd6 Qf6 Rdd7 Kh5 Rd6 Rgg3 Rdd7 Be2+ Ke1 Kg4 Rd6 Rc5 Rd4 Rd5 Rd3 Bef1+
3b1b1K/1bPb2QB/nbn2rqB/R2nP2n/5R1k/1QN4b/6PQ/R5r1 b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 axb5 g5 d4 cxd4 Nc3 dxc3 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 Kf2 Ke7 Kf3 h5 Ke4 f5+ Ke5 a5 e4 d5 b4 a4 c5 f3 b6 d4 b5 d3 g6 h4 c6 h3 b7 a3 g7 f2 b6 h2 c7 a2 Qb3 f4 Bd2 c2 Qb5 c1B Ba5 d2 Ne2 d1N Bc3 f3 Qd3 Na6 b8R Qe8 b7 Bh3 Be1 Nc3 Bd2 Nd5 Rc8 Rh6 b8Q Qg6 Bc3 Bg5 Rc1 a1B Rg1 h1N Qd1 Ng3 Qd3 Nh5 Qb3 Kf7 Rb8 Bd8 Rb5 Ne7 Ra5 Rb8 Bb2 Rb6 Rd1 Rf6 Nc3 Rh7 Be2 f1B Bc1 f2 Qg3 Rh8 Bf3 Bb5 Rdf1 Bbd7 Bh6 Bb2 Rfa1 f1B Qh2 Ba3 Be2 Bc5 Bd3 Bb6 Bc2 Bfb5 Rgf1 Bbc6 Rf4 Bb7 Bb1 Qg4 Bd3 Kg6 g8Q+ Ng7 R1a2 Kh5 Ra1 Kh4 Qf7 Nh5 Qg7 Ne3 Bc4 Rh7 Bg8 Rh8 Bh7 N3d5 Rf3 Qg3+ Rf4+ Bg4 Bf5 Rg6 R5a3 Nhf6 Qg1 Kh5 Bg5 Nc6+ Ke6 Qd3 Kf7 Rgh6 Bh7 Bd7 e5 Bhf5 Ra5 Rg6 Rf2 Kg4 Bg8 Rh1 Bh7 Nh5 Kg8 Rf6 Bh6+ Kh4 Qh2+ Bh3 Rf5 Rg1 Kh8 Qc2 Rff1 Qg6 Rf4+
1n3bBQ/PB3qn1/4P3/RP3Nrn/3B3r/Rn2QQ1b/nn5b/k3b2K b - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 e5 Qc2 exf4 Qc5 a6 Qa7 Ke7 Nc3 Kd7 a5 Ke8 Na4 bxa4 Qxa6 Qe7 Qa7 Qd8 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 f5 Kg2 h5 a6 c5 g5 Kd4 b5 h3+ Kh2 h4 d3 Kc3 e5 f3 d4 c4 g6 a3 g7 f4 d6 a2 d7 f2 d5 f3 d6 Qc7 d8Q Nf6 g8B Nh5 d7 Ng7 Bh6 Kb2 Qe8 c3 d8Q c2 Bh7 c1B Bd2 Qf7 Be3 Bd2 Bf4 Be1 Rd1 a1B Ne2 Bd7 Bg2 f1N+ Kg1 Ng3 Bg8 f2+ Kh2 f1N+ Kg1 Nd2 Qc5 Nb3 a7 N3h5 Qg5 h2+ Kf1 h3 Rg1 h1N Rd5 h2 Rd3 Nf2 Nd4 h1N Qf5 Ne4 Be3 Nhf2 Qf3 Nc3 Nf5 Na2 Bd4+ Kb1 Rh1 Nd1 Kg1 Nb2 Rh2 Rh6 Kh1 Rg6 Qc3 Rg5 Qe3 Be6 Bb7 Bc8 Nd6 Bh3 e6 Nc4 Rg2 Bb2 Nf5 Ka1 Qc2 Bbc3 Qcf2 Nb2 Qff3 Bcb4 Rc2 Bbd6 Rc6 Bh2 Ra6 Nc6 Ra4 Rd8 Ra5 Nb8 Rc3 Rd5 Qd8 Re5 Qf6 Re4 Qh6 Rh4 Qh8 Nd2 Rca3 Nb3 Qee2 Bg1 Qef2 Bh2 Q2e3
N5n1/KP1rRQR1/b4qQ1/1PrQN2B/q7/3P3k/q2nn1q1/Nn2nq2 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 b3 f5 Bb2 h6 Kc1 f4 Be5 f3 Bf4 Bd6 Bg5 Bf4 gxf4 hxg5 Kb2 Kf7 Kc3 Ke6 Kb4 Kf5 Kc5 Kg4 h4 a5 e4 c3 h5 c2 f5 c1Q+ Qc2 a4 b4 a3 b6 a2 f6 Ra7 d3 Na6+ Kc6 Qf4 e5 Nc5 f7 Ne4 f8Q Nd2 b5 Ba6 h6 Qa4 h7 Qf6+ Kd7 c5+ Ke8 c4 e6 c3 e7 Rd7 Qb2 c2 b7 c1N Na3 Nb1 Be2 f1N Qb3 Nfd2 Nc2 g6 Bd1 Ne2 Qd5 f2 Nf3 f1Q Rg1+ Kh3 Qff7 g4 Ne5 g5 Qg6 g3 Qdf7 Nf4 Bh5 g4 Qd5 g2 Qgf7 Rc7 Kd8 Rd7+ Kc8 g3 Kb8 Ne2 e8N Qd1 Re1 g1Q Nc7 g2 Qg6 Qh2 Na8 g1Q Qdf7 Qgg2 Ka7 Qc1 Rg1 Qcf1 Qd5 Nbc3 Rb1 a1N Re1 Ncb1 Qdf7 Qa2 Qd5 Qhf4 Qdf7 Qfa4 Qd5 Nab3 Na1 Nbd4 Qgf7 Nc2 Qg6 Qg3 Qgf7 Qgf3 Rg7 Q3g2 Qg6 Nh6 Qdf7 Rc8 h8Q Rc5 Qhe8 Ng8 Qd5 Nf4 Re4 Ne1 Qef7 Ne2 Ng4 Q6f5 Re7 Qf6 Ne5
b1B3n1/2P1PB2/2R3nP/bq1rknK1/2Q1Q1p1/r4b2/5b1B/1bQN2Nr b - - 0 1 illegal: No possible last move
3b2r1/b2N1qQ1/n2pbP1Q/N2b3N/P7/nP3r2/1K1Rb1qB/1nQ1Rk2 b - - 0 1 illegal: No possible last move, all moves rejected
2rqb1Q1/1P1P2b1/pnBNbN2/1N2K3/2QB1r2/1qBb2Pk/n2Rbr2/8 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 g5 cxd5 e5 h4 gxh4 Ra3 exf4 Rb3 Qc7 axb5 Kd7 b6 Qd8 b5 Ke8 Rb4 cxb4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 Kg4 e3+ f3 b7 f5+ Ke5 h5 d6 a6 e4 b3 g3 h3 d7 h4 d5 f4 d6 b2 b6 h2 Nh3 Nf6 Ng1 h3 Qa4 f2 Be3 f3 Qa1 Bg7 Nd2 b1Q Qa2 Qb3 Ne2 Rf8 Bg2 f1R Nc4 Rf2 Rd1 h1B Nc3 h2 Bd4 Rf7 Nb5 Nd5+ Ke6 Rf4 e5 Nc6 b8Q Ncb4 b7 Nb6 Rd2 Re2 Qc7 f2 Bc6 f1B Qb8 Kh3 Bc3 Rg4 Kf5 Rg2 e6 Be2 e7 Rf4+ Ke6 Rgf2 e8N Bhf3 Nf6 h1B Ke5 Bh5 Qc2 Be8 Qd3 Qc7 d8B Be6 Qe4 Qe7 d7 Na2 Ncd6 Bhf3 Qd3 Be4 Qc4 B4d3 Bc7 Qd8 Bd4 Nd5 Ba5 Nb6 Bb4 Qe7 Qd8 Rc8 Bbc3 Qf8 Qe7 Qh8 Qf7 Qf8 Qg6 Qe7 Qf7 Qd8 Qg8
1b2b3/P4p2/1NbP1n1r/4N1K1/R1Bq2PQ/kr4N1/qb1Q4/Q2nq1bB b - - 0 1 legal: proof: b4 a5 g4 h5 c4 e5 a4 d5 cxd5 g5 Ra3 h4 Rf3 Ke7 Bb2 Ke8 Bd4 Qd7 Be3 Qd8 Bf4 axb4 Rg3 hxg3 f3 e4 fxe4 gxf4 e5 Rh5 Na3 Rh7 Nb1 Rh8 e4 Kd7 Ke2 b5 Kf3 c5 h4 c4 d4 c3 h5 c2 d6 Kc6 h6 c1B a5 b3 e6 b4 e5 g2 e7 b2 e8Q+ Nd7 d5+ Kc5 a6 b3 h7 Kb4 a7 Nb6 d7 Nc4 e6 Bd6 e7 Nf6 Nc3 b1B Qd2 b2 Na4+ Ka3 Nb6 Ne3 Bc4 Nd1 Ne2 g1B Ng3 Rb8 Qf8 Bf5 e8B b1Q Qh6 Bb7 Qh4 Bc6 Rh2 Be5 Re2 Bd6 Re4 Qa2 Rd4 Rb7 Re4 Bb8 d6 Qc8 d8N Bb2 Bd7 Qc7 Bde6 Qe7 Bed5 Qe5 Rd4 Bfd7 Re4 Be8 Rd4 Rg8 h8Q Rg6 Be4 Rh6 Qg7 Bcd7 Nc6 Qc5 Ne5 Bc6 Be6 Qcd5 Rb4 Qc5 Bc4 Qd4 Kg2 f3+ Kh3 f2 Bh1 f1Q+ Bg2 Qe2 Bh1 Nh7 Qf6 Ne3 Qf1 Nf6 Qa1 Nd1 Qh5 Qdd3 Kh4 Qd4 Kg5 Qe1 Qh4 Re7 Ned7 Re3 Ne5 Rb3 Ra4+
3Nb2q/1n3Q2/q1B1R3/r1BP1P2/1p1P1r1q/1Q1n4/rbQNK1kr/3N1n2 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 h5 e4 g5 a4 Bh6 g4 Bf8 Ra3 f6 Rg3 f5 exf5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 d4 Kf7 h4 c5 h5 b5 a5 e5 h6 e4 a6 g3 g6+ Kf6 h7 Kg5 g7 c4 a7 c3 Nd2 e3 Rh2 b3 Ne2 Kg4 Rg2 Kh3 Nb1 b2 Nd2 b1Q Qc2 f3 Qb3 f2+ Kd1 Ba3 Ne4 b4 Qa2 Ne7 g8Q Qd3+ Bd2 Nd7 Rg1+ g2 Qa1 Nc5 Qc1 Qa6 Qb2 c2+ Kc1 Nb7 Qe6 Nc6 N2c3 e2 Bg5 e1Q+ Nd1 Ne5 Nd2 Bd7 Be7 Be8 Bb5 f1N Bc6 Qh4 Bc5 Kg3 Rh1 g1R Qf7 Kg2 Rh3 Rh1 Re3 Rh2 Re1 Rg8 h8N Rg4 Re3 Rf4 Re4 Rb8 a8Q Rc8 Qa7 Ra8 Qc7 Qdf6 Nf7 Qfh8 Nd8 Qa4 Qab6 Ra5 Qf7 Qb5 Qbc7 Qa6 Nb3 Ng3 Kd2 c1R Qc8 Nd3 Re6 Nf1+ Ke2 Ra1 Nd2 Ra2 Qb3 Bb2 Qa8 Qb5 Qa6 Qb6 Qac4 Qa6 Qcc2
1k2RK2/3Bp2b/1R1n3Q/bBb2B2/2qq1N1P/Q1q1P2P/nn3Qr1/3br3 b - - 0 1 illegal: No possible last move
Bq4b1/1P1b2Bq/rbP2P2/2k2r2/B1b2nq1/2RR1Q2/pQ1K1nrQ/6N1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 e4 Qb6 Nd2 Qd8 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Nh6 Ng4 hxg4 Bd2 Ng8 Be3 Bg7 Bc1 Bf8 b4 e5 c4 Ke7 h4 Kd6 b6 a5 b5 a4 b7 e4 h5 a3 f6 g3 h6 g2 h7 a2 g6 f3 g7 f2+ Kd2 d3 b6 e3+ Kc3 e2 Bb2 e1Q+ Qd2 Qe4 Qe1 d2 Bc1 d1Q Ne2 g1R Bh6 Kc5 Nd4 d5 Nc2 d4+ Kb3 d3 Kc3 d2 Rh3 Rg2 Qe2 Ra6 Rc1 Bd7 Nd4 Ne7 g8B Ng6 Bd5 Nc6 b8Q Nf4 Qf3 Ne5 Bg7 Ned3 Ba8 Qc8 Qb7 Qb8 Ne2 Bd6 Ng1 Bc7 Be2 f1B Rc2 Rg8 h8Q Nf2 Qh4 Qb1 Bd1 Qh7 Rc1 Qbg6 Ba4 d1B Kd2 Bb3 Rc3 Qg4 Qhg3 Re8 Qh2 Re5 Rd3 Rf5 Rc3 Kd4 c5 Bg8 c6 Bfc4 Rg3 Kc5 Rh3 Qa7 Qb8 Bd8 b7 Bb6 Qe5+ Nd5 Rd3 Qb8 Qb2 Nf4 Rc3 Rg3 Qe2 Rg2 Rhd3 Qf8 Qe4 Qb8 Qf3
r2R3q/P1n1Nb2/3BRb1n/1qn2pqQ/8/r2bNR1K/q3PP2/2k1Q1N1 b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 e5 c3 bxc3 dxe5 Ra4 Qb3 Ra6 Qd1 Ra8 a4 h5 gxh5 b5 a5 Ne7 Bg2 Ng8 Bd5 Qh4 Bb3 Qd8 Ba4 bxa4 Kf1 Ke7 Kg2 Ke6 h4 f5 h6 d5 a6 c5 h7 g5 a7 g4 h5 a3 h6 c4 Qc2 g3 Nd2 d4 Rb1 Kd5 e6 a2 e7 a1Q e8R d3 Re6 Kd4 Nh3 Na6 Nf1 d2 Qb3 d1B Qa2 c2 Bf4 Kc3 Bg5 c1Q Nf4 Qcb2 Ng6 Kc2 Nh2 c3 Qd5 Qaa2 Ng4 Qb5 Be3 Be7 Nh4 Nc7 Rh3 Ba6 Nf3 Bf6 Bc5 Qde8 Rb2+ Kc1 Ng1 Bb3 Rd2 c2 Ne3 Bc4 Bd6 Bd3 Kh1 g2+ Kh2 Bb7 Qe5 Bd5 Rf3 Qc8 Qc3 Qd8 Re8 Bf7 Re6 Qab2 Be5 Kb1 Ng4 c1N Rh3 Be4 Nf3 Qde8 Rd8 Bc2 Bd6 Qa2 Qe1 Kb2 Kg3 Nb3 Kh2 Nc5 Rg3 Ne7 Rh3 Rg8 h8Q Rg7 h7 Ng8 Rg3 g1Q+ Kh3 Rg6 Qg7 Rg5 h8N Nh6 Ng6 Qh8 Ne7 Bb1 Qg6 Kc2 Qb4 Kc1 Qh5 Rg7 Ne3 Rg4 Nd1 Rd4 Qa5 Ra4 Ne3 Ra3 Qb4 Bd3 Qa5 Qd1 Qb4 Qda4 Qa5 Qf4 Ng1 Qg5 Rf3 N7a6 Qb4 Nc7 Qe1+
q2QKNq1/1n1RB3/R2P1qn1/4N3/1k4Pb/4P2Q/2p1Rn1r/nQ1q1b1q b - - 0 1 legal: proof: c4 a5 g4 g5 f4 gxf4 a4 e5 c5 b5 Bg2 e4 axb5 Ra6 Bf3 exf3 h3 Rg6 h4 Rg5 c6 dxc6 hxg5 c5 Rh3 c4 Rh6 Ba6 Rh1 Bc8 Kf2 Kd7 b4 Kd6 d4 h5 g6 c5 g7 f5 e3 c3 d5 c2 b6 c4 b5 Kc5 d6 a4 b7 c3 b6 a3 Bb2 c1Q Rh4 a2 Qd5+ Kb4 Rh3 c2 Rg3 h4 Bd4 h3 Qe6 h2 Be5 Ne7 g8Q Ng6 Nc3 Na6 b8Q Qa3 b7 Be7 Na4 Bh4 Bf6 Nc5 Nb6 Qa8 Be7 h1Q Qh7 Qg8 Qf6 Be6 Qd8 Bc4 b8R Nb7 Nd7 Bf1 Qh6 Rh7 Nf8 Rh8 Rc8 Rh7 Rc7 Rh8 Re1 a1N Rd7 Rh7 Re2 Rh8 Ke1 f2+ Kd2 f3 Kd3 f4 Kd4 Bh3 Qhg7 Bg5 Ne6 f1N Kd5 f2+ Nf3 Nd2 Kc6 f1Q Rg1 Nab3 Qb2 Ne4 Ne5 f3 Rc7 f2 Kd7 Qc1 Qf7 f1Q Qh7 Qf6 Nf8 Nf2 Ke8 Qd2 Rb1 Qdd1 Rd7 Bf1 Qh4 Rh7 Ra1 Rh6 Qg3 Rh2 Ra6 Bh4 Qa2 Na1 Qh3 Kb5 Qb2+ Kc5 Qc1 Kb4 Qb1+
q4rr1/5BN1/1p1q1QP1/1r4R1/1r2R2N/1Pb1b2Q/kbbNPn2/Q1b1K3 b - - 0 1 illegal: No possible last move
1b4B1/B3nP2/1RQ1q3/P1b1qRN1/1r3qb1/1prqQ1P1/R1Qb2b1/K5k1 b - - 0 1 legal: proof: b4 d5 f4 a5 e4 axb4 c4 f5 cxd5 Nd7 g3 Ndf6 h3 Ng4 hxg4 g6 Nc3 fxe4 f5 g5 Nce2 Ra5 Nf4 gxf4 Rh2 Ra4 Rh1 Ra8 d4 Kf7 Kd2 Kf6 Kc2 Kg5 Kb1 b5 a4 e5 d6 c5 d7 h5 a5 b3 f6 h4 f7 b2 d5 c4 d6 c3 Ne2 h3 Rh2 c2+ Ka2 b1Q+ Ka3 e3 Ra2 b4+ Ka4 e4 Bb2 c1B Kb3 f3 Qd3 f2 Rg2 h2 Ra4 h1B Nc3 e2 Qa6 e1Q Bd3 f1Q Rf2 e3 Ra2 e2 Qc6 Ne7 Bh7 Rb8 Bg8 Qe8 d8R Bf4 d7 Qd3 Ba1 Bd6 Kb2 b3 Rf6 Qf4 Rf5+ Kg6 g5 Kh5 g6+ Kg4 g7 Kh3 Ne4 Kh2 Ng5 Kg1 Qc2 Rb4 Qc6 Bg2 Qc2 Bcb7 Rb8 Bc8 Rb6 Bb8 d8Q Qed7 Qe8 Qe6 Qb5 Qec3+ Kb1 e1B Qc6 Bd2 Bb2 Qce5 Ka1 Ng6 Bc3 Bc5 Bb2 Ne7 Bd4+ Kf1 Bh7 Rd8 g8Q Bd7 Qe8 Rc8 Bc3 Kg1 Bg8 Bf2 Bd4 Rc7 Qe4 Rc3 Qc6 Bc8 Ra6 Bd7 Ba7 Bc5 Rb6 Qh6 Rf6 Bg4 Rf5 Qh3 Qf3 Qh6 Qec6 Qhe6 Qe3+
B2r1B1N/1r1P1nb1/2P1qBr1/KQ2qR2/4q1P1/1q2Rnp1/1kq2r2/Q3R3 b - - 0 1 legal: proof: e4 c5 f4 b5 a4 g5 axb5 gxf4 d4 cxd4 Qf3 d3 Qe2 Na6 Qd1 Nb8 g4 h5 Ra3 d5 Ra1 d4 Nc3 h4 Nce2 Bb7 Ng3 Bd5 exd5 hxg3 Kd2 Kd7 c4 Kd6 h4 Ke5 b4 a5 d6 f5 d7 f3 b6 a4 b7 a3 c5 f4 b5 a2 b6 f2 h5 f3 h6 Nc6 b8R Ra7 b7 Qe8 h7 Bg7 Rc8 Nh6 Rb1 a1Q Ra8 Nf7 Bg2 f1R Rd8 f2 b8Q+ Rc7 Qa8 Rb7 Bb2 e6 Kc1 d2+ Kc2 Re1 Nh3 f1R Qa3 Rf2 Qdf3 Ref1 Kd3 d1Q+ Kc4 Qc2+ Bc3 Qe7 Rb8 Rd8 Rb5 Rb1 Ra5 R1b6 h8B Qe1 Ra4 Qee4 Qa1 Qe3 Qe2 Ra7 Qb2 Qd2 Qb5 Bf6 Bb4 d3 Rd1 Nd4 Ba8 Nf3 Rc8 Rab7 Rh1 Qc2+ Bc3+ Ke4 Kb4 e5 Be1 Kd4 Qf1 e4 Ra3 Qh6 Ka5 e3 Rg1 e2 Bb4 e1Q Nf4 Q1e4 Ng6 Qg5 Bg7 Qgf4 Bf8 Bg7 Nh8 Rg6 Rc3 Qfg5 Qa1 Q7e6 Re1 Qcb3 Ba3 d2 Bb2 d1Q Rc6 Qdc2 Rce3+ Kd5 Bf6 Qh5 Qb6 Kc4 Rd6 Qhf5 Rd5 Qff4 Rf5 Qfd6 Qa3 Qde5 Qb5+ Kd4 R3e2 Kc3 c6 Rg5 Qa4 Rg6 Re3+ Kb2 Qa1#
2bb1q1Q/r3Pn1K/q2NN1Q1/q1qb1pBB/b1Rn3N/4Pk2/3P4/2B2n2 b - - 0 1 illegal: No possible last move
1rn1KQ2/Nn3RQq/N2P1r2/3Q4/kP2PB1p/2p2b1b/1rn2b2/2RN2q1 b - - 0 1 legal: proof: f4 a5 b4 d5 h4 e5 c4 exf4 cxd5 g5 e3 gxh4 Bc4 b6 a4 b5 axb5 a4 Bb3 axb3 Kf2 Kd7 Kf3 f5 g4 c5 d4 h5 e4 h3 b6 b2 g5 c4 g6 c3 g7 h2 b7 h4 d6 Kc6 d7 Kb5 d5 Na6 b8N Rh6 Qd4 Ne7 g8Q Qc7 d8Q Nc5 Qe6 Nb7 Ra3 Rf6 Nc6 Rb8 Nd2 b1R Nh3 Rb2 Ra7 Bd7 Qd6 Nc8 Nb3 Be6 Q6e5 Bc5 d6 Qh7 Qed5 Bd7 Bd2 Be6 Rc1 h1B+ Kf2 f3 Ke3 f2 Kf4 f1Q+ Kg5 f4 Qf8 f3 Bf4 Bg2 Nf2 Beh3 Nd1 f2 Q4e5 Qg1 Qed4 Nd8 Rf7 f1N Na7+ Ka4 Q4e5 Bf2 Nc5+ Ka3 Na6 Ka4 Qee7 Nb7 Qg7 Ne3 Qef8 Qg8 Kh5 Nc2 Kg5 Rf5+ Kg6 Qh8 Rf6 Bf3+ Kf7 Qg8+ Ke8 Qh7 Rf7 Rf6 Qfh8 Qh1 Qgf8 Qg1 Qhg7
4nn1k/1BPb1q2/r2N1Bq1/b3rp2/3p1P1B/N1b2QrN/2nP4/2K2R1Q b - - 0 1 legal: proof: c4 d5 a4 b5 b4 g5 h4 gxh4 axb5 c5 Ra6 d4 Rd6 exd6 bxc5 d5 Rh2 dxc4 Rh3 Na6 Rh1 Nb8 g4 a5 e4 f5 f4 Kf7 c6 Kg7 e5 h5 b6 a4 g5 a3 c7 c3 e6 c2 g6 a2 e7 a1N e8Q h3 b7 h2 Bb2 c1B Nc3 h4 Be2 h3 Ba6 Bd7 Nb5 Bb4 Qee2 Nf6 Na3 Qg8 Qf3 Ba5 Bc3 Rh6 Bb4 Bb2 Be7 Ne8 Bh4 Qf7 Bf6+ Kg8 g7 Rg6 Ke2 Kh7 g8N Bbc3 Ne7 Rg3 Nc8 Nc2 Nd6 Qg6 Bh4 Kh8 Qb1 Ra7 Kd1 Qf7 Kc1 Ra8 Bb5 Ra6 Bc6 Qg6 Ne2 Qf7 Rf1 h1Q Ng1 h2 Nh3 Qg2 Qa1 h1R Bd5 Nc6 b8B Ne7 Ba7 Ng6 Bc5 Nf8 Bb7 Rh2 Nc8 Qg1 Bce7 Re2 Nd6 Re5 Qb1 Ne1 Qbe4 Nc2 Qh1 Qg2 Qd3 Qc6 Qdf3 Qb6 Ne4 Qbf6 Nd6 Q6g6 Bef6+
5R2/1Qppq2b/QqPr1N2/5R2/N2rnP1k/2q3n1/b2NP3/n1b1K1BR b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 g4 Ng8 b4 fxg4 b6 h5 b5 a5 b7 h4 Bg2 Nc6 b8Q h3 Qa7 hxg2 Qc5 Nb8 Qb4 axb4 f4 Kf7 c4 Kg6 h4 Kh5 b6 g5 e6 b3 e7 b2 e8R g3 b7 g4 c5 Nh6 c6 Ra4 Kd2 Ba3 Re3 Rd4+ Rd3 Nf5 Nc3 b1B Na2 Qe7 Qc2 Rh6 Nc3 Rhd6 Na4 Ba2 Nf3 g1N Qc4 g2 Qa6 g3 Ke1 Nh3 Be3 Bc1 Bg1 Ng5 Bh2 Ne4 Nd2 Kg4 h5 Kh4 h6 g1Q+ Nf1 g2 h7 Qe3 h8N g1Q Nf7 Qg7 Nh6 Nfg3 Ng8 Qge5 Nf6 Qg1 Qb5 Na6 b8Q Nac5 Q8b7 Nb3 Q5a6 Qa5+ Rd2 Qc3 Rb1 Na1 Rb5 Qb3 Rf5 Qb6 Rb2 Qe3 Nd2 Qc3 Qb8 Qba5 Rb7 Qb6 Ra7 Bb7 Ra8 Bc8 Qba7 Bb7 Rf8 Bc8 Qa5 Ba6 Qb7 B6c4 Qaa7 Bg8 Qaa6 Bh7 Bg1+
1K2kr2/N1p1bR2/1QPBp3/Q1nn4/r1b4Q/1B4rb/b2PN2P/1Bb1q3 b - - 0 1 legal: proof: a4 b5 axb5 h5 b4 g5 f4 gxf4 e4 d5 Bd3 dxe4 Ke2 f3+ Ke3 Bd7 Kd4 Bc8+ Kc3 h4 Ra6 h3 Rf6 f2 Rf3 exf3 Bh7 Bb7 Nxh3 Ba6 Ng1 Bc8 Kc4 f1R Kc5 a5 g4 f5 c4 a4 g5 f2 b6 f4 b7 a3 g6 f3 g7 a2 b5 a1B b6 Kf7 Nc3 Qe8 Ba3 Ra5+ Nb5 Nd7+ Kc6 Ra4 b8Q Ngf6 c5 Nd5 b7 Bb2 Bb1 Rg8 Qe1 Bc1 Ne2 Rg1 Qa8 f1B b8Q f2 Na7 Bh3 Qb2 f1B Qh4 Rg3 Qb6 Ba6 Bb4 Bc4 Kb7 Ba2 c6 Rh8 Bd6 Rg8 Nc8 Nc5+ Kb8 Rh8 Qaa5 Rg8 Nc3 Bfc4 Re1 Qd8 Re2 Ke8 Rf2 Qd7 Rf1 Qe6 Na7 Qe1 Ne2 Rh8 g8B e6 Rf7 Be7 Bgh7 Rhg8 Bhc2 Rf8 Bb3
B7/1Qn1Nq2/3r2pP/n4R1Q/b1bPk3/2pb1N2/2Q2rPr/1rRRKn2 b - - 0 1 legal: proof: d4 d5 a4 b5 axb5 Nc6 c4 dxc4 d5 Nb8 e3 Qd6 Qg4 Qd7 Qd1 Qd8 f4 h6 Ra4 e6 Bd2 Bc5 Ra1 Bd4 exd4 Ba6 Bb4 Bb7 Be7 Bc8 Bg5 hxg5 Qc2 gxf4 Qe2 Bb7 Qd1 Bc8 h4 Kd7 b4 Kd6 h5 f5 b6 a5 b7 c5 b5 c3 b6 f3 Ne2 c2 Kf2 c1R Nf4 e5 Bd3 c4 Rh4 a4 Qf1 e4 Qe1 g6 Qe2 c3 Qa2 a3 Nd2 e3+ Kg3 f2 Qb2 f1B Ba6 a2 Kf3 e2 Kf2 e1N Bc4 Rb1 Bb3 Bd3 Ba4 Bd7 Bd1 Qe8 Nh3 f4 Nf3 Ra6 Qc2 Nc6 b8R Nf6 b7 Qf7 Rf8 Ne8 b8Q+ Nc7 Qb7 Na5 h6 Ba4 Rh5 Rg8 Re8 Rf8 Rf5 Rab6 Re2 Rc6 Rd2 Rcb6 Ne5 Nf3 Nc6 Nh2 Ng5 f3 Ne7 Nf1 Be2 Rc6 Rd1 Rcb6 Rc1 Bc4 Ke1 f2+ Kd1 Nh2 Nf3 f1B Ke1 Ra6 Bd1 Bfd3 Be2 Nf1 Rd1 Rb5 Rac1 a1R Rd2 Rab1 Rdd1 Kd7 d6 Ke6 d7 Rd6 d8Q Rc5 Rf4 Rh5 Qe8 Rh2 Qeb5 Qg8 Qh5 Rf6 Ne5 Qf7 Bf3 Rf5 Qb5 Rf6 Ba8 Rf5 Qb7 Kf6 Rh4 Rf2 Rg4 Ke6 Rg5 Kf6 Rf5+ Ke6 N7c6 Kd5 Nf3+ Ke4 Ne7+
1Q1K3B/1q2N1k1/7Q/3NP2P/n2RR3/qn1Rnp1r/3Pb1pn/n2Qb1r1 b - - 0 1 illegal: No possible last move
6NQ/r3p2n/q1n1N1r1/1b2rPRk/1N2p1RB/QQ3qPr/K2P4/6br b - - 0 1 illegal: No possible last move
b5q1/P3pPQ1/bBN1b3/1P1bR1K1/br2Bp2/2Rn1q2/2n1Q2r/1k4QR b - - 0 1 illegal: No possible last move, all moves rejected
Q5NQ/bqBn2q1/2n1rq2/P1b3P1/1Qk1b3/B1p3pR/R2B1P1r/2K4b b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Bb2 g4 Ba3 Bg7 Bc1 Bf8 g3 h5 h4 Nd7 Bh3 Nb8 Nc3 gxh3 g4 Ra6 g5 Ra7 Ne4 Ra8 Nf6+ Kf7 Ng4 hxg4 Qc2 Ke8 Qb3 Ra3 Qd1 Ra8 d4 Kf7 Kd2 b5 a4 c5 d6 e5 f6 Ke6 f7 Kd5 a5 c4 d7 b3 h5 h2 h6 e4 h7 b2 Ra3 b1Q Re3 g3 Rb3 b4 Rc3 b3 Qe1 e3+ Kd1 b2 Rb3 e2+ Kd2 Qf6 d8B Nc6 Nf3 Bf5 Ra3 Be4 Nh4 Ra6 Ra2 Qa1 Bc7 b1Q Nf5 Bc5 f8B Qb7 Nh6 Ba7 Be7 Qg7 Bea3 Nf6 Ng8 Nd7 Be5 Qf6 Bc7 Bg2 Kc2 Bf3 Qb4 Be4+ Kd2 e1B+ Kd1 Qc3 Be3 Qg7 Bd2 Qf3+ Kc1 Qff6 Rg1 h1B Rf1 Bhg2 Rh1 c3 Rh3 Bh1 Qd6+ Kc4 d5 Ne7 Qf4 Re6 d6 Nc6 Qh4 Nf8 d7 Bc5 d8Q Nd7 Bdf4 Ba7 Qa8 Bd2+ Kd1 Bde3 Qg4 Bec5 Bd2 Qff8 Qf4 Rh6 Kc1 Qff6 Ne7 Re8 Ng8 Re6 h8Q Rg6 Rh7 Rh6 Qd6 Rh2 Rh3 Nd4 Qb6 Nc6 Qb4+
rbbqR2K/Q2B2B1/b1nn1pN1/1q1NNnP1/8/P1PB1p2/1r3k2/n2Q4 b - - 0 1 legal: proof: d4 e5 f4 c5 b4 cxd4 h4 a5 a3 axb4 f5 g5 hxg5 Ra4 Qd2 Ra5 Qd1 Ra8 e4 Bd6 f6 Qe7 Rh4 Kd8 Rf4 exf4 e5 Kc7 e6 Be5 fxe7 Bg7 Ra2 Bf8 Rb2 Nh6 Rb3 Kb6 Rh3 Kc6 Rh1 Ng8 Ke2 Kc5 Kf3 b5 Ke4 h5 Ke5 d5 e8N f3 g4 d3 g6 h4 g5 b3 g7 b2 e7 d4 Nh3 f6+ Kf4 b4 Be3 d2 Be2 b3 Ng1 h3 Nd6 h2 e8B Nh6 g8Q Nf7 Bd3 Nc6 Nb5 Nd6 Qc1 d1Q Nd2 b1Q Bf7 b2 Nc4 Rh7 Be8 Rb7 Nh3 Be7 Rf1 h1N Nc7 Ng3 Rf2 Ngf5 Re2 Bd8 Nd5 Bc7 Qe6 Bb8 Bd7 Qd2 Qg1 Qf1 Qe8 b1N Qd8 Rb2 Ne5 Qa5 Qc7 Nd2 Qa7+ Qb6 Kg4 Nb3 Kh5 Na1 Kg6 Qb1 Kh7 Qd1 Qa6 Qb5 Nhf4 Qd2 Qd1 Qda5 Be4 Qd8 Bd2 d3 Bb4+ Kd4 Nfg6 d2 Bd3 Nb7 Bf8 Nbd6 Qb1 d1B Kh8 Ra2 Re1 Be2 Qd1 Rb2 Qa7+ Qbb6 Nc7 Ke3 c3 Kf2 Nd5 Bf1 Nc4 Qc5 Re8 Qcb6 Nce5 Be2 Bc2 Bea6 Bd3 Qc5 Bg7 Qcb6 Ne3 Qb5 Nd5+
2k2q2/1Q4N1/1b1pq3/1Rn1Bb2/bQBBp3/1b2PP2/1r2nKPq/Q1N3r1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 b4 f5 b6 a5 b5 f4 Ra4 f3 Qd2 Kf7 Rb4 axb4 Qf4+ Ke6 Qxf3 Ke5 Qf7 Kd6 c4 h5 e3 e5 b7 Kc7 f3 e4 c5 d3 c6 d2+ Ke2 d1B+ Kf2 h3 Nd2 b3 Kg3 h2 Bc4 b2 Qh7 b1B Ne2 h4+ Kf2 h3 Be6 Bc5 Ba3 Ne7 Qg6 d6 Re1 h1Q Ng3 h2 Nf5 Qf8 Bb2 Ra2 Nb3 Nd5 Qg7+ Nd7 Nc1 Nc3 Bc4 Ne2 Be5 Bb3 b8B+ Kd8 b6 Rb2 b7 B1c2 Rd1 Bb6 Rd5 Nc5 Ba7 Ba4 b8Q Bcb3 Qgb7 Qd1 Q7a8 h1Q Ng7 Qh2 c7+ Kd7 Qab7 Qdh1 Q8a8 Qh3 Qab8 Qe6 Qa6 Qh2 Qbb7 Bc6 Qa1 Bca4 Qb8 Qhf4 Qb7 Rh1 Qb8 Rg1 Qb7 Na6 Rb5 Qh2 Qb8 Ba5 Bad4 Bb6 Qa8 Nc5 Qa5 Bb7 Qe1 Kc8 Qb4 Bc6 Bf6 Be8 Bfe5 Bg6 Bf4 Bf5 Bfe5 Kd7 c8Q+ Ke7 Qa8 Kd7 Qd5 Kc8 Qb7+
RK1Q1q2/1R5B/Nnp1n1Qr/2r4p/nnB3PP/Pk5q/1B2Q3/bb2b3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 e4 f5 c3 bxc3 exf5 g5 f4 Ra6 f6 Ra5 f5 Ra8 Na3 Nc6 Nb5 Ba3 Nd4 Bf8 Nde2 Nb8 Nf4 gxf4 Ke2 Kf7 Kf3 b5 Ke4 h5 Kd5 c6+ Kd4 d5 g4 f3 h4 c2 a3 f2 Bh3 f1Q Rh2 b4 Qf3 b3 Qf2 b2 Qf3 b1N Qg2 Bg7 Kc5 d4 Ne2 d3 Ng3 d2 Bb2 c1B Qe2 d1N Rf2 Ne3 Ne4 Qf8+ Kb6 Nh6 Kc7 Nc2 Nc5 Ra5 Na6 Nc3 Rb1 Nb4 Bg2 Be6 Bd5 Nd7 Bc4 Qh3 Rf3 Bd5 Kb7 Rc5 e6+ Kg8 e7 Kf7 Kc7 Bd2 Rf4 Be1 e8B+ Kg8 Bg6 Na4 Re4 Nf7 Re8 Nd8 Bh7+ Kf7 Kc8 Ndb6+ Kb8 Ne6 Rd8 Qe8 Rc8 Be4 Rd8 Kf8 f7 Ke7 Rc8 Kd6 f8Q+ Qe7 Qg8 Qf8 f6 Bc2 f7 Be5 Bc1 Ba1 Qg6 Be4 Rb3 Ke5 Rb1 Kd4 Rd8+ Kc3 Rc8 Qh6 f8Q Bd3 Qd8 Qf8 Rc7 Bc2 Ra7 Be4 Ra8 Bf5 Bg8 Rh6 Rb2 Bb1 Bh7 Rd5 Rd2 Rc5 Rd7 N6d5 Rb7 Ndb6 Bb5 Kb3 Bb2 Qe3 Bd3 Qh3 Bc4+
5RBR/3Qq1rP/KnrRn3/Q1rq1bQ1/2pP1b1r/4p1B1/b1N3Pk/8 b - - 0 1 legal: proof: e4 f5 f4 b5 c4 g5 a4 d5 Qh5+ Kd7 Qh6 Ke8 Qg7 h5 Qh7 h4 Nc3 dxc4 axb5 h3 Nd5 fxe4 f5 Be6 Nf4 gxf4 Qxh3 Bd7 Qh7 Bc8 Ke2 Kd7 b4 Kd6 h4 Ke5 d3 c5 f6 a5 h5 f3+ Kd2 Kf4 Kc3+ Kg3 h6 e5 b6 a4 b5 a3 f7 a2 b7 f2 b6 e3 d4 e4 Bd2 e2 Bg5 e1Q+ Bd2 Nf6 Nh3 Ne8 Rh2 Ra6 Rc1 a1R Ng5 Nd7 b8Q+ Nc7 b7 Bd6 f8R Nb6 Qa7 Ne6 b8Q Bf4 Nf3 Qd5 Qe5 e3 Be2 f1B Qhd7 Rh7 Bd1 Rg7 Bb3 Bd3 h7 Bb1 Rh6 Ba2 Rb1 Qh1 Ne1 Qh4 Nc2 Kh2 Be1 Ra5 Rg6 Qe7 Qg5 Rb5 Rc1 Rb1 Qa5 Ra1 Kb2 c3+ Ka3 Rb1 Bh4 Ra1 Rf1 Rd1 Rf2 Rf1 Rh8 Rh1 Ne1 c2 Bg3+ Kg1 Bc4 c1R Nc2 Rh4 Rh6 Bc7 Rff8 Bf4 Be1 Kh2 Rg6 Na8 Ka4 Rb6 Rh6 Rc6 Kb5 Nb6 Bf2 Nd8 Rd6 Ne6 Qe8 Nd8 Be1 Bf5 Qd7 Ne6 Ka6 Rb1 Be2 Rb5 Bg4 c4 Bg3+ Kg1 Bh5 Rbc5 Bf7 Kh1 Bg8 Kg1 Be1 Kh2 Bg3+
1q2q3/n3rb1P/1B2P1Qq/2KP1Rp1/q4Q2/1k2p2N/4rbRn/2B2rBQ b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 g4 d5 d4 e4 cxd5 h5 e3 hxg4 Bd3 Qh4 Nc3 exd3 e4 Qg5 e5 Qd8 Ne4 fxe4 Kd2 Kd7 Ke3 a5 f4 c5 b4 a4 h4 a3 d6 Ke6 b6 Kd5 f5 Kc4 f6 d2 d7 g3 b5 a2 d5 g2 b7 Nh6 h5 Ng4+ Kf4 Rh7 f7 Qe8 d8Q Nh2 Ke3 Nc6 b8Q Na7 b6 Be6 Qf3 d1Q h6 Kb3 b7 c4 Qg5 c3 Nh3 g1R Qg6 Rf1 Rg1 c2 Qh1 Bd6 f8B Bf7 e6 Bg3 Rg2 Bf2+ Kf4 e3 Ke4 Qh5 Kd4 Qh4+ Qf4 Rb8 Qf6 g5 Bc5 Rg7 h7 Qh6 Qg6 Ra8 B1a3 c1Q b8B Qb1 Bb6 Qb2+ Kc5 Qe5 Re1 a1Q Bc1 Qaa4 Bd6 Rb8 Re2 Rb7 Rc2 Re7 Ra2 Re1 Rd2 Re2 Rd4 Rg8 Re4 Qh8 Re5 Rf8 Rf5 Qg8 Be5 Qh8 Bc3 Qe5 B3d2 Q5b8 Be1 Bg3 Bf2 Bh4 Bg1 Bf2 Qd4 Bg8 Ba5 Bg3 Re5 Rf1 Qf4 Bf7 Rf5 Bf2 Bb6
R2b3Q/rBnqk1P1/2P1N1Pp/1NR3Rb/q1n3N1/4p1b1/4Q3/2rr2bK b - - 0 1 legal: proof: c4 c5 a4 f5 e4 fxe4 h4 b5 axb5 g5 d3 Nh6 Bd2 Ng8 d4 cxd4 Bc3 dxc3 hxg5 Qb6 Qd5 Qa5 Qd1 Qd8 f4 d5 Kf2 a5 g4 e5 Kg2 h6 b4 a4 c5 c2 b6 c1R c6 e3 f5 a3 f6 d4 f7+ Ke7 b5 e2 b7 e1B g6 d3 g7 a2 g5 e4 g6 d2 b6 Na6 b8Q Ra7 b7 Nf6 Qf3 d1Q Qe2 Bg3 Rh5 Nd7 Nc3 Ne5 Nf3 Nc4 Nh2 Bg4 Rg5 Bh5 Nb5 Nc7 Ng4 Qa4 Kh1 Qd7 Qa8 e3 b8R Rg8 Rb1 a1B Rb2 Bf2 Rc2 Be5 Rc8 Bg1 Qb8 Na3 Rc5 Bg3 Qa8 Nc4 Rb8 Ke6 Bh3 Bfd6 f8N+ Ke7 Ne6 Rf8 Rc8 Rff1 Rh8 Rfd1 Qg8 Ra6 Qh7 Ra7 Ra8 Bh4 Qh8 Bdg3 Nf4 Qa1 Rgd5 Qd6 Nf6 Qa4 Bc8 Qd7 Ne6 Bg5 Ng4 Bf6 Nf8 Ke8 Rg5 Bd8 Bb7 Ke7 Ne6
KN2r2n/1R3bPn/1P5R/2p3B1/1NN2r1Q/bpqb1q2/3q2P1/1k2QqQ1 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 hxg5 b5 a4 bxa4 b4 Qf6 e3 Qe7 Bc4 Qd8 Bb3 axb3 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 h5 b5 a5 b6 h4 d3 f3 e4 h3 g6 a4 g7 a3 Bg5 a2 Na3 f4 Rb1 a1Q+ Rb2 h2 Ne2 f2 Qg1 f1Q Nc1 f3 Na2 f2 Nb4 Be6 Kc4 Ke5 Kb5 Kd4 e5 Kc3 d6 Rh3 d7 Ne7 Ra2 Bf7 e6 Ng6 e7 Rh4 e8Q Nh8 Nc4 Rf4 d4 Qfd1 d5 f1B d6 Bd3 Qe4 Qf3 Ra7 Qaf1 Qe8 Qf6 d8Q Nd7 Ka6 c6 Na2+ Kc2 Kb7 Qc3 Qe1 Nf6 d7 Nh7 Qde7 Q1e2 d8N Qed2 Qf6 Bd6 Qh6 Bb4 Qhh4 c5+ Nc6 Rd8 Qh5 Ba3 Qhh4 Rd7+ Ka8 Re7 Rb7 Ree4 Nb8 Re8 Nc1 Kb1 Na2+ Qcc1 Nb4 Qc3 Qgf2 Qcd1 Rf1 h1Q Qg1 Qdc1 Rf2 Qd2 Re2 Qhh3 Re3 Qf1 Re6 Qhf3 Rh6 Qc3 Qe5 Q1d2 Qee1+
2Q1B3/1r2bPnP/rb4K1/1nB1Q3/3b1Ppq/2Q3N1/NqpNb3/1R2k2n b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 d5 e4 dxc4 b5 f5 exf5 b6 Ra2 Qd5 Rb2 Qd8 Rb4 axb4 a5 Bb7 axb6 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Ke4 f4 e5+ f6 c5 d4 g3 h4 g2 d5 b3 d6 c3 b7 b2 b6 c2 h5 c4 h6 c3 d7 Na6 b8Q Rh7 b7 Be7 Rh5 Nc7 Be3 c1B Qe1 c2 Rh3 Ra6 Qa8 Nb5 Bb6+ Be3 Qd2 Bd4 Ne2 g1B Na3 b1Q Bc5 Qb2 Rh1 Kf3 b8Q+ Kf2 Qa5 e4 Qc3 e3 Ng3 e2 Nc4 e1N Nd2 Nd3 Kg6 Ke1 Qe5+ Bge3 Qab8 Nf2 Rg1 Bb7 Qc8 Bf3 Rh1 Be2 Rg1 Qf8 d8N Nh1 Nb7 Qd8 Na5 Bf2 Nab3 Bfe3 Kf5 g5 Nc1 g4 Kg6 Rf7 h7 Nh6 Qee6 Nf5 Qe5 Ng7 Bg2+ Bf1 Be4 Bf2 Bc6+ Bfe3 Rg2 Be2 Be8 Bd6 Rh2 Rb7 f7 Bf2 Rh5 Qh4 Rf5 Be7+ Rf6 Ra8 Ra6 Bfe3 Ra1 Ra5 Rb1 Ra6+ Bd6 Bb6 Bc5 Bd4 Na2+
1b2QRKn/2P4r/2rR4/1rqp4/2Bp2Qn/b1P1R1N1/Q3P2q/2r1q1Nk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 d5 exf4 Be3 Bb7 Bd4 Bc6 dxc6 cxd4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 g4 h5 b4 a4 b6 a3 b5 a2 c7 h3 g5 f3 g6 h4 b7 f2 g7 h2 b6 h3 Nc3 Qg5 Qc1 Rh6 Qe3 Ne7 g8R Ra5 Rd1 a1B Na4 Qc5 Qc1 Nbc6 b8Q Rb5 Rg7 Ng6 Rh7 Nd8 Rd2 Nh4 Bg2 f1R Qa3 Rc1 Kd3 Kf5 Bf3 Kf4 Qc8 Kg3 Ke4 Rc6 Rh8 d6 Bh5+ Kg2 Nc3 f6 Kf4 Nf7 Ne4 f5 Ng3 Bb2 Qa2 Ba3 Rd3 d5 Bg6 Bg7 Rf8 Nh8 Kg5 f4 Re3 f3 Bd3 f2 Qg4 f1Q Bc4 Be5 Kh5 Bd6 Kh6 Qe1 Kg7 Bf4 Kg8 Bd6 Nf3 Bf4 Rf1 h1Q Ng1 Be5 R1f6 h2 Nf3 Qhg1 Rg6 h1R Rd6 Qh2 Ng1 Bf4 Rd3 Bd2 Rdf3 Ba5 b7 Bb6 b8Q Ba7 Qbc8 Bb8 c3 Nf5 Qb2 Qh6 Qb1 Rh2 Ne4+ Kh1 Qa2 Qf4 Rd3 Rh7 Re3 Nh4 Qe8 Qh2 Ng3+
6b1/q1P2n1R/n1r2p2/P1QNr1k1/8/2P1bKR1/bNq1nBp1/2RQ2bN b - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 f4 Nf6 f5 Ng8 f6 Qc7 Kf2 Qa5 Ke1 Qd8 g4 exf6 g5 Qc7 g6 Qd8 gxf7+ Ke7 Bh3 h5 Bg4 hxg4 Kf2 d5 a4 g5 h4 b5 e4 g3+ Kf3 d4 c6 b3 e5 b4 a5 g2 e6 g4+ Kf4 g3 c7 d3 h5 d2 h6 b2 h7 b3 Kf3 Ra6 Rh5 Bh6 f8N Rc6 Rd5 Be3 Rd4 Nh6 Nc3 b1B Nh3 g1B Rh4 b2 Na4 g2 Nd7 Nf7 Nf2 Na6 Nh1 Re8 h8R Ba2 R8h7 b1Q Ndb6 Qd4 Rh3 Kf8 Nd5 Qa7 e7+ Kg8 Ke4 Be6 Kf3 Qb3 Nb2 Qc4 R7h5 Kg7 Rh7+ Kg6 Rb1 Kg5 Ra1 Rb8 e8Q Rb5 Qe7 Qb3 Qc5 Qd3 Qe2 d1N Rb1 Nc3 Qd1 Ne2 c3 Qg6 Bd2 Qc2 Rc1 Nd8 Be1 Bg8 Bf2 Nf7 Qf1 Rb8 Qe1 Re8 Qd1 Re5 Rg3+
6nq/2PQP1kr/1r3rR1/Bpn4Q/4RPK1/bQ1Rbr2/2B1N2p/2n1q3 b - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 d3 h3 f5 b5 g5 Nd2 e5 Ndf3 b6 Nd4 exd4 Kd2 Bb7 Ke1 Bf3 gxf5 g4 Rb1 g3 Ra1 Bg4 hxg4 a6 Bd2 axb5 Bc1 b4 c4 Kf7 a4 h5 e4 d5 f4 b3 e5 b5 a5 g2 Kf2 b2 Kf3 b1Q e6+ Kg7 g5 h4 a6 h3 a7 d2 c5 d3 c6 d4 g6 Na6 c7 Nc5 Ne2 g1B Ra3 Rh7 Kg4 Rb8 a8Q Rb6 Qc8 Be3 Qd7+ Be7 Qb3 d1N Bd2 Nb2 Ba5 d2 Bg2 d1R Be4 Qe8 Bc2 d3 Re1 h2 f6+ Kh8 f7 d2 f8Q Nbd3 Qh6 Nc1 Qh5 Kg7 Qb4 Qb8 Rd3 Qe8 Qb3 Qc8 Rh1 Rf1 Rg1 Rf3 Re1 Kf6 g7 d1R Rd4 Bd6 e7 Rd3 Re4 Rd5 Rd1 Rf5 Qd3 Qb4 Qb3 Qe1 Rd3 Be5 Qa3 Bb2 Qb3 Ba3 Ng3 Nh6+ Kh3 Re5 g8R Ree6 Rg6+ Kf7 Kh4 Qh8 Kh3 Ng8 Rh6+ Kg7 Kg4 Red6 Ne2 Rf6 Rg6+
1Q1r1n2/pRN1Q1q1/rqRRQr2/P1P1qB2/4pb2/7b/2B3P1/r1nK2k1 b - - 0 1 legal: proof: c4 c5 b4 e5 bxc5 d5 cxd5 g5 h4 gxh4 d6 Qa5 Na3 Qc7 Nb1 Qd8 e4 f6 d4 Qc7 d5 Qb6 Nd2 Qd8 Bb2 f5 Bd4 exd4 e5 Kd7 Ne4 fxe4 Rh2 Ke8 Rh3 Nd7 Rh1 Nb8 a4 Kd7 f4 b5 f5 h5 f6 d3 a5 b4 f7 d2+ Ke2 h3 Qc2 d1Q+ Ke3 h2 Qd3 h4 Qb1 b3 Kf2 h3 Ba6 b2 Bf1 Nc6 Qc2 b1Q Ra4 Qg4 Qb3 Qg7 Ke2 Qdf6 Ra1 Rh6 Nf3 Nb4 Nd4 Nd3 Ne6 Nc1+ Kd1 Ne7 Nc7 Ng6 Bd3 Qe7 Qc4 Qb6 Rb1 Qg5 Rf1 h1R Bc2 h2 Qa6 Be7 f8Q Qf4 Qh8 Bg5 Rb2 Nf8 e6+ Kd8 e7+ Kd7 Rb5 Qfe5 Rb1 Bf4 e8B+ Kd8 d7 Ke7 d8R Kf6 d6 Kg5 d7 Kh4 Rb4 Kg3 Bg6 Rb8 Bf5 Rf6 Rb2 Rg1 Qc4 h1R Qe6 Rhh6 Rb4 Kh2 Qh7 Qa6 Rb7 Qb6 Qhg8 Rhg6 Qe7 Rh6 Qge6 Ra8 Re8 Kh1 d8Q Bd7 Re1 Rf1 Qb8 Kg1 Rd8 Bc8 Rd6 Rhg6 Rc6 Bd7 Q6d6 Rh6 Bh7 Bh3 Bf5 Rhg6 Qde6 Rh6 Qbe8 Rd8+ Qd5 Nb3 Re6 Rd7 Qb8 Qbd6 Ke2 Rfg6 Qc6 Rd8 Ra1 Rc1 Ra4 Ra1 Rd4 Nc1+ Ke1 Nh7 Qcd7 Nf8 Kd1 Qa6 Reb6 Rd6 Rd2 Rhf6 Qde6 Qb5 Rd3 Rc6 Rd6 Qbb2 Rb4 Ra6 R4b6 Qb5 Rc6 Qb4 Q7d7 Qb6 Qde7
3qq2n/pn1PN1KQ/3P2b1/Q5Nr/5k1q/pn1P1R1Q/6bR/n4BRr b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 bxa4 b3 gxh4 e3 Bg7 Bb2 Bd4 Bc3 f6 Bb2 Bb6 Be5 Bd4 exd4 fxe5 Ke2 Kd7 Kd3 Kd6 Ke4 c5 g4 h5 f4 c4 g5 a3 g6 h3 g7 h2 f5 c3 b4 h4 b5 h3 d3 c2 b6 c1N b7 Nd7 b8R Nc5+ Ke3 e4 Kf4 e5+ Kg4 e3 Nf3 e2 Rb3 e1N Rb4 e4 Qa4 e3 Nc3 e2 Qa5 Nh6+ Kh5 Nb7 Kg6 Nf7 g8Q Nb3 f6 Rh5 Ng5 Nh8+ Kg7 Nc2 f7 e1Q Qh7 Bf5 f8Q+ Qee7+ Qf7 Qee8 Rc4 Bg6 Qf3 Rc8 Rc7 Rb8 Rf7 Ra8 Ra2 Nca1 Rg1 h1B Rh2 Bg2 Qe3 Rc8 Rf3 Rb8 Ne2 Rc8 Ng3 Rc1 Nf5+ Kd7 Rhh1 h2 d6 Kc6 d7 Rb1 Qad2 Kd5 Ne7+ Kd6 d5 Rd1 Qef2 Ke5 Qa5 Re1 Qh4 Rd1 Qh3 Re1 Rg3 Kf4 d6 Rc1 Be2 Rb1 Re1 Rd1 Bf1 Rc1 Rg1 h1Q Re2 Qh2 Rge3 Qg3 Ra2 Qh4 Rb2 B2e4 Rh2 Bg2 Rg3 Rd1 Rgh1 Bf3 Be2 Rb1 Rf1 Re1 Rff2 Rg1 Bf1 Rh1 Rfg2 Bd5 Rg1 Bg2 Rf3+
3nNb2/1n3BP1/R3p1Q1/1p3n2/1b1R1BK1/1R1Pr2B/1Q3P1q/2r1knnn b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 fxe4 h5 d5 cxd5 axb4 g4 Nh6 Nc3 Na6 Nce2 Ra7 Nf4 Nf5 Ng2 Ra8 Nh4 gxh4 g5 Nh6 g6 Bf5 g7 Bg6 hxg6 Nb8 Bh3 Ng8 Bg2 Ra6 Bf1 Ra8 Ke2 Kd7 a4 Kd6 d3 Kc5 d6 Kd4 a5 Kc3 d7 h5 a6 c5 a7 b5 Ra2 e6 Nh3 e3 Kf3 c4 Re2 b3 Rb2 e2 Rh2 e1B Rb1 b2 Be3 Nh6 g8B Nf7 g7 Nc6 Qa4 Na5 Be2 Qb8 d8Q Nb7 Bc5 Kd2 Bh7 c3 Qa3 c2 Bf1 c1N Qa4 Ne2 Qa2 Ng1+ Kg2 Qe5 Qa3 Rc8 Bd6 Rc1 Qa8 Nfd8 Nf4 h3+ Kg3 h4+ Kg4 Kd1 Bb8 Beb4 Bg8 Ke1 Bf7 Qc7 Rh1 h2 Nh5 h3 Nf6 Rh5 Ne8 Re5 Qa2 Re3 Bg2 Qd6 Bc7 Qe5 Qc8 Qd6 a8R Qe5 Ra6 Qd6 Ra1 b1N Qb2 Nd2 R1a4 Nf1 Qa8 Ne2 Rg1 h1N Ra3 h2 Rb3 Nhg3 Bh3 h1N Qb8 Qe7 Bf4 Nf5 Q8e5 Qd6 Qf6 Qb8 Rg3 Ng1 Qg6 Re2 Re3 Qd6 Re5 Re3 Re4 Qe5 Rd4 Qc7 Bh6 Qh2 Bf4
2nb1b2/R1B1b3/4b1P1/3RQr2/n1Q3kn/3pK3/p1RP1N1P/Qqnr3B b - - 0 1 legal: proof: b4 f5 g4 g5 a4 c5 bxc5 b5 e4 fxe4 axb5 Bb7 f4 Bc8 Nc3 h6 Nd5 gxf4 g5 h5 Ne3 Nh6 Ng4 hxg4 Ra3 Ng8 Ra4 Kf7 Ra1 Ke8 Ke2 Kf7 c4 Ke6 c6 Kf5 b6 a5 b7 d5 g6 e5 c7 d4 c5 f3+ Kf2 g3+ Ke1 g2 Kf2 e3+ Ke1 d3 c6 e4 Qa4 f2+ Kd1 Be6 c8Q Rh5 c7 Nd7 b8Q Kg4 Ra2 Ne7 Qb1 Nc5 Bb2 e2+ Kc1 e1N Qa3 a4 Nf3 g1B Qc3 a3 Qbc2 e3 Qd1 e2 Qe5 Rf5 Ng5 Na4 Bg2 f1N Ne4 Bb6 Rg1 Ng3 Bh1 Nf3 Qf1 e1B Kd1 Ra5 Qa6 Qd4 c8R Nh4 Rc2 Qb4 Qc4 Bd8 Bd4 Ra8 Bb6 Nc8 Bc7 Bf2 Ra1 B2c5 Ke1 Bce7 Rg2 Ra5 Rf2 Ne2 Raa2 Rf7 Rf5 Nc1 Kf2 Qb1 Ke3 Rb5 Rh5 Rf5 Qe1 Rf1 Qa1 Rc5 Rd5 Rf5 Rab2 a2 Rb7 Rf1 Ra7 Rb5 Rd4 Rbf5 Rd5 Kh5 Qg3 Rd1 Qge5 Kg4 Nf2+
K2b2n1/npNBBn2/krP1R2p/P7/B5P1/rR4R1/r1rn3q/1bQQ4 b - - 0 1 legal: proof: b4 c5 h4 a5 d4 cxd4 e4 f5 exf5 g5 hxg5 axb4 a4 Qa5 Na3 bxa3+ Bd2 Qb6 Bc1 Qd8 Kd2 d5 Kd3 Kd7 f4 Kc7 c4 Kb6 g4 e5 g6 a2 f6 h6 f7 Qh4 f5 Nd7 f6 Ka6 c5 Qh2 g7 Be7 f8R Bd8 Rb1 a1R f7 Ra2 Rb3 Ra3 Ne2 e4+ Kc2 d3+ Kc3 d2 Kd4 e3 a5 Ne5 Re8 Bf5 f8Q Nf7 Nc3+ e2 Rg1 Bb1 Nb5 e1N Rgg3 Rc8 Re5 Rc6 Re6 Rb6 c6 Nf3+ Kc5 d4 Qd6 d3 Qf4 Ra2 Ba3 Rh7 Qe1 d1R Qc1 Rdd2 Qed1 Rdb2 Bb4 d2 Bd3 Ra3 Bf5 Rba2 Bc2 N7e5 Kd6 Nf7+ Kd7 Rh8 Kc8 Rh7 Kb8 Rh8 Qe2 d1N Ka8 Nd2 Be7 Nc3 Qed1 Rh7 Rb2 Rh8 Ba4 Rh7 Rb3 Rc2 Nd6 Nb5 Ne8 Rca2 Rb2 Na7 Rbb3 Nf6 g8B Rg7 Rh3 Rg5 Rhg3 Rc5 Bh7 Ng8 Bf5 Rc3 Rg6 Qh5 Bd7 Qh2 Re6 Rcc2 Nc7+
5nbN/Pr3R2/kB3Pn1/2BpP1b1/rB1bn1n1/1bQ1q2N/1p3Q2/3N2K1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 d4 f5 e4 c6 a4 axb4 Bg2 Ra6 Ra3 Ra8 Rd3 c5 dxc5 Ra6 Rd4 exd4 e5 Ra8 Be4 fxe4 Kf1 b5 h4 d5 f4 Kd7 c4 Kc6 h6 Kb7 c6+ Ka6 c5 g5 f5 g4 c7 g3 c6 g2+ Kf2 b3 h7 b4 h5 b2 f6 b3 a5 d3 h6 d2 Qe1 d1B Nc3 b1N Be3 b2 Bb6 Bb3 Nh3 e3+ Kg1 e2 Qf2 e1N Nd1 Be6 c8N Nd2 c7 Nd3 Nd6 Ne7 Nf7 Nd7 Rh2 Rg8 h8B Ng6 h7 Bh6 Bg7 Bg5 h8B Ne4 Bf8 Rg7 Bfc5 Ndf8 Rh1 Rh7 Bg7 Qb8 Rh2 Qa7 Nh8 Bg8 Bh6 Re7 c8Q+ Rb7 Bb4 Ba4 Qc3 Bb3 Bd8 Qe3 Bb6 Nh7 Bhf8 Raa7 Bfc5 Nhf8 Nf4 Ra8 Rh7 Raa7 Kh2 g1B+ Kh1 Ra8 Nh3 Raa7 Rf7 Ra8 Qf4 Ndf2+ Kg2 Ng4 Qf2 Qc1 Qfc2 Bd4 Qf2 Qe3 Kg1 Rc8 Be7 Rc4 B4c5 Kb5 a6 Ra4 a7 Ka6 Bb4 Rd7 Bed6 Rb7 Bdc5
1knK1R2/n1n1P1B1/r4p2/1r2B2q/1nQ2n1N/1B4Q1/1PP1bpQ1/1r3Nq1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 b5 axb5 e5 g5 Bh6 g6 Bg5 Ra3 e4 Rf3 exf3 hxg5 Ba6 Qd2 Bb7 Qd1 Bc8 Kf2 h5 e4 a5 b6 d5 g7 Kd7 g6 a4 e5 h4 b7 Kc7 e6 a3 Bc4 d3 Nh3 a2 Bb3 a1R Na3 d4 Qe1 f6 Rh2 d2 Ng1 d1Q Nc4 d3 Qb4 d2 Rh3 Nc6 Qa4 Ra6 Na3 Nge7 g8Q Na7 g7 Rb1 Nb5+ Kb8 Bc4 Qb6+ Nd4 Rh5 Qc6 Rb5 Ne2 Qc5 Ba2 Qh5 Nf5 Qh1 Rg3 h3 Qc4 h2 Nh4 Qd1 Bb3 Qh1 Rg1 d1N+ Ke1 f2+ Kd2 f1N+ Kd3 f3 Ke4 Qg2 Ng3 h1N Bh6 Nfe3 Nf1 f2+ Kf4 Ng3 Rh1 N7f5 e7 Nc3 Qgd5 Qg1 g8Q Na2 Qg2 Nb4 Bg7 Ne2+ Ke4 Rba5 Rh3 Ned5 Rd3 Nb6 Rd8 N6d5 Rf8 Nef4 Qg3 Nd6+ Kd4 Ndb5+ Kc5 Nb6+ Qgd5 Nc7+ Kd6 Rb5 Qdg2 Nac6 Rf7 Bg4 Rf8+ Ka7 b8B+ Ka8 Qcd3 Be2 Qc4 Nc8+ Kd7 Kb7 Q2h3 N6a7 Kd8 Ne8 Bd6 Nc7 Be5 Kb8 Qhg2
K1Nr4/2pP1r1R/1B2kPBQ/2n2b2/n2PBNq1/6q1/pn2Q2q/1n1n1N2 b - - 0 1 legal: proof: d4 b5 a4 g5 axb5 f5 b4 d6 h4 gxh4 e4 Bh6 Ra5 Bg7 d5 Bd4 c3 Nh6 cxd4 fxe4 Ra3 Ng8 Rc3 Bh3 Rc4 Bc8 Rc5 dxc5 Ke2 Kd7 Ke3 a5 g4 e5 f4 h5 d6 c4 f5 h3 g5 c3 b6 c2 f6 h2 b5 a4 g6 a3 g7 a2 b7 h4 b6 h3 Qd2 Na6 b8N+ Ke6 b7 Rh7 Bg2 Qd7 Nf3 Ne7 g8B+ Rf7 Na3 Nc5 Bb2 c1N Nh4 N1d3 Nc2 Na4 Bc3 Ndb2 Nc6 Rb8 Ng6 Nd5+ Ke2 e3 Kf3 e2 Ke4 e1N Qh6 Ra8 b8Q Ned3 Qb5 Rb8 Na7 Ndc5+ Kf3 Ra8 Ba5 Ndc3 Ne3 Nb1 Nf1 e4+ Ke3 Rb8 Bb6 Ra8 Kf4 e3 Bh7 e2 Be4 e1Q Qe2 Qc3 Nh4 Rb8 Ng2 Qe1 Bhg6 Ra8 Rg1 h1N Kf3 Nf2 Rh1 h2 Kf4 Ba6 Nc8 Bd3 Ke3 Nfd1+ Kf4 Qe8 d7 Qg8 Na7 Qf8 Bef5+ Kd5 Qg5 Qh6 Kf3 Rh8 Nc8 Qh3+ Kf4 Kc4 Ke5 Qg4 Nf4 Qeg3 Qh5 Rd8 Qh8 Kb4 Kd5 Kc3 Kc6 Kc4 Rg1 h1Q+ Rg2 Na6 Kb7 N6c5+ Ka8 Qhh5 Rh2 Qhh3 Ne6 Kd5 Qf8 Qhg2 Rh7 Q2h2 Qh6 Be4 Ng7 Bd3 Nh5 Bc2 Be4+ Ke6 Bh1+ Qe3 Bb7 Bf5 Be4 Qeg3 Nf4+
B5qB/P2QQ2r/7q/Qp1Nr3/p1qbrnr1/P5rb/1R3PBK/k1N5 b - - 0 1 legal: proof: c4 a5 e4 f5 h4 fxe4 a3 d5 cxd5 g5 Ra2 gxh4 b4 c5 Rb2 a4 Rb3 Nc6 Rb2 Na5 bxa5 Qd6 Rb5 Qd8 Rb4 cxb4 g4 Kf7 d4 Kf6 a6 b5 d6 e5 a7 h5 d5 h3 d7 e3 d6 e4 g5+ Ke5 g6 e2 g7 h2 Bg5 b3 Bc1 h4 Nc3 b2 Qd3 b1Q Qe3 h3 Qd3 Qc2 Bb2 Rh4 Bg2 Rg4 Qd2 Ne7 g8B Ng6 Ba2 Nf4 Qe3 Bg7 Bc1 Qg8 Nd5 Qc4 Qf3 Kd4 d8Q Bf6 Ne3 Kc3 d7 Bd4 Qe7 Rb8 Bd2+ Kb2 d8Q Ka1 Qdd7 Rb6 Bb3 Rbg6 Nd5 Rg3 Qd3 R6g4 Qc7 Bf5 Qa5 Bc8 Bb4 Be6 Bd6 Bc8 Be5 Be6 Kd2 e1R Ne2 Bf5 Rg1 h1Q Nc1 h2 Bh8 Re2+ Kd1 e3 Rf1 Rg5 Bc2 Bh3 Qdd2 R5g4 Bce4 Qg1 Qd3 h1R Bef3 Qg7 Qf5 Qh6 Qfd7 Ra2 Ke1 e2 Ne3 Rb2 Ba8 Rb4 Nd5 Qh2 Kd2 e1R Rg1 Re5 Rf1 Ne2+ Ke1 Qe6 Rg1 Qg8 Kf1 Nf4+ Ne2 Rbb3 Nf6 Rbe3 Qf7 R3e4 Nd5 Rg6 Nb6 Be6 Nd5 Qh5 Qfe7 Rh4 Rh1 Bh3 Kg1 R6g4 Kh2+ Ka2 Rb1 Qhh7 Rb2+ Ka1 Qc3 Qhg7 Qa5 Rh7 Nc1 Qg5 Qc5 Qh6 Qce7
KR3RB1/1nQ1Bn2/Qr1r1q1N/2Q4B/1pPpq2P/1P4q1/2bq2kr/4n3 b - - 0 1 legal: proof: f4 e5 g4 h5 e4 hxg4 d4 f5 d5 a5 Nc3 a4 b3 a3 Na4 Bd6 Nb2 axb2 exf5 e4 Nf3 Be5 fxe5 c6 Ng1 cxd5 Bh3 d4 Bg2 Ra4 Bf1 Ra8 Ke2 Ke7 c4 b1Q a4 g5 h3 d5 e6 Kf6 a5 Ke5 a6 b5 a7 g3 f6 e3 Kf3 b4 f7 e2 f8Q e1N+ Kg4 Ke4 Ra2 d3 Ne2 g2 Nd4 d2 Qc5 Qf6 Be2 Nc6 Nf5 Nd8 e7 Nb7 e8B Rb8 a8Q Nh6+ Kg3 g4 h4 Nf7 Nh6 Bf5 Qa6 g1R+ Kf2 Rg3 Rf1 Rh3 Bd7 Rhg8 Be6 Rg6 Ra5 Rd8 Rb5 Rd6 Qc7 d4 Rb6 Nc5 Rb8 Rh2+ Kg3 Nb7 Rf3 Ne5 Bg8 Nf7 Rf1 Ke3 Qc2 Bd3 Qca2 Bf5 Q2a5 Bc2 Qac5 Ke4 Rf2 d1Q Bg5 Qd2 Rf5 Qe6 Be7 Qf6 Bf3+ Ke3 Be4 Ke2 Bf3+ Kf1 Bd1+ Kg1 Bf3 Qf2+ Kf4 g3 Q7c6 g2 Qc7 Qe2 Bh5 Kf2 Qaa7 g1Q Qa6 Qh8 Rf6 Rb6 Rf5 Rgd6 Rf6 Kg2 Rf5 Nfd8 Rf6 Qd2+ Ke5 Re6+ Kd5 Nf7 Rf4 Qgf2 Rf3 Qg3 Rf4 Nfd8 Rf7 Qf6 Rf8 Nf7 Q5d6 Rb5+ Kc6 Rd5 Kb6 Rb5+ Ka7 Rb6 Qdc5 Red6 Qd7 Qbd1 Qdc6+ Qdf3 Ka8 Qe4 Qc7
b1kr1Q1N/B3pqP1/1pb1r1Bq/1P1q1b1r/2nP3Q/N3Q2b/K1B5/2R5 b - - 0 1 legal: proof: c4 a5 f4 d5 h4 dxc4 a4 g5 b4 gxh4 g4 Be6 d4 Bf5 e4 Qc8 g5 Bd7 b5 Na6 Ra2 Be6 Rb2 Nb4 Rb3 Nd5 exd5 Qd8 Rb4 Bh6 g6 Bg5 fxg5 axb4 Nh3 Bf5 Ng1 Bc8 Kd2 Kd7 Kc2 f5 Kb2 c5 g7 h5 d6 b3 a5 c3+ Ka3 f4 g6 b2 a6 c4 a7 f3 Rh2 b6 Be3 c2 Rf2 c1R Nc3 b1B Bg5 h3 Bg2 h4 Qd2 h2 Re2 h1B Re1 f2 Nge2 f1Q Qe3 h3 Nf4 h2 Be4 Nh6 g8Q Nf5 g7 Rh5 Bc2 Bc6 Qf8 h1B Ng6 Qf4 Rf1 Re1 Nh8 Rb8 a8B Bhd5 Qd2 Re6 Rc1 Ne3 Bb7 Qf7 Bf4 Bf3 Bg6 Bbe4 Nb1 c3 Ka2 c2 Na3 Nc4 Qe3 Bf5 Bh2 Qg8 Qf6 Qf7 Qh4 Bg2 Ba8 B8b7 Bf4 Kc8 Bg3 Bgh3 Bh2 Bh1 Bg3 Bbg2 Be4 Qd7 Bd3 Ba8 Bf4 Qb7 Be4 Qd5 d7+ Kb7 Bg3 Rd8 Bb8 Bf3 Ba7 Kc7 Rf1 c1Q Bc2 Qd2 Rc1 B3e4 Qe2 Qh6 Qd3 Qe5 Qe3 Bec6 Qhf2 Qd5 Qh4 Rb8 d8Q+ Kb7 Qg8 Rd8 Qe8 Kc8 Qf8
NqB3K1/3P1P2/1BQ5/1b4kB/q1q1P2b/3n1pp1/r1br1brN/Q1R2N2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 fxg4 axb5 d5 c4 e5 f5 dxc4 b4 g5 h3 g3 Ra3 Nd7 Rf3 Ndf6 Rf4 exf4 h4 g4 Nc3 Ne4 Nb1 Ng5 hxg5 Qd6 Bh3 Qd3 Bf1 Qd8 d4 Kf7 Kd2 c5 Kc3 a5 b6 h5 b5 h4 b7 h3 b8N g2 b6 g3 f6 Kg6 e3 a4 f7 h2 b7 a3 d5 a2 d6 a1Q+ Bb2 Nf6 d7 Be7 Qd6 Ra2 Nf3 g1B Na6 Bf2 b8Q Rh5 Rg1 h1B Nbd2 Rh2 Qa7 Rg2 Nc7 Ba6 Qc6 Bb5 Na8 Qb8 Nh2 Kh5 g6 Ng4 g7 Kg5 g8B Ne5 Qa5 Nd3 Bh7 Qd1 Be2 Qa4 Ndf1 Bd8 Bh5 Bf6+ Kd2 c3+ Ke2 c2 Kf3 c1Q Bd4 c4 Ke4 Bd8 Bb6 c3+ Kd5 c2 Ke6 Bf6 Be4 Bd8 Qac3 Bf6 Qa1 Be7 Nd2 Qf1 Bef3 c1R e4 Rcc2 Be2 Qc1 Ndf1 Rd2 Ne3 Qc5 Rc1 Qcc4+ Qd5+ Kh6 Nef1 Bh4 Kf5 Ne5 Ke6 Kg5 Ke7 f3 Qc6 Nd3 Qh8 Rg1 Qa1 Bg2 Qc8 Bh3 Kf8 Rg2 Kg7 Be6 Qc6 Qcb4 Kh7 Bb3 Kg7 Bc2 Kh7 Qf4 Kg8 Qc4 Qb2 Qe6 Ne3 Ne5 Nc7 Bc4 Na8 Ba6 Bb5 Nd3 Nef1 Qec4 Qa1 Qb8+ Qc8 Bb7 Ba6 Bc6 Bb7 Bb5 Ba6 Qf4 Qc6 Qb8+ Bc8
4r3/4B1N1/B1Rr2nn/N1BPQ3/1PP1Knp1/1b2n2p/1nr5/Q2kqQn1 b - - 0 1 legal: proof: g4 b5 a4 c5 h4 f5 b4 g5 e3 gxh4 axb5 d5 g5 d4 Ke2 c4 Kf3 c3 Kg2 Bg7 Ra3 cxd2 Rc3 d3 Rc4 Ba1 Rg4 Bd4 exd4 fxg4 f4 Kd7 g6 Ke6 g7 Kf5 b6 Ke4 c3 Ke3 b7 h5 f5 e5 f6 a5 f7 a4 f8B a3 Bc5 e4 Rh2 h3+ Kg3 a2 Be7 a1R Rf2 h4+ Kh2 R8a6 Ne2 Rd6 Kh1 h2 Kg2 h1N Nf4 h3+ Kg1 Be6 Na3 Nh6 g8Q Nc6 b8Q Ne5 Nb5 Ng6 Bg2 Ra2 Kh2 Rc2 Qf7 Qe8 Nh5 Bb3 c4 Ng3 Na7 Ne2 Rf6 Nef4 Kg3 Rg8 Qh1 Ke2 Nc6 d1N Ng7 e3 Na5 d2 Bb7 Nb2 Ba6 d1N Qha8 Ke1 d5 e2 Be3 Rf8 Bc5 Ne3 Re6 Kd1 Qf5 e1N Qc7 Rd7 Rc6 Nf3 Qce5 Rd6 Qa7 Rc1 Qb1 Ng1 Qa1 Rh8 Qd7 Rf8 Qdf5 Rg8 Bf6 Qe6 Be7 Re8 Qff6 Qf5 Qf7 Qb1 Qff5 Rc2 Qd3+ Kc1 Qf1+ Kd2 Kf2 Qc1 Kg3 Qe1+ Kh2 Nfd3 Qa4 Nf2 Kg3 Kd1 Qa2 Nh4 Kf4 Nfd3+ Ke4 Nf4 Qa3 Nhg6 Qa1+
1n1bN1b1/1p2NB1b/3K1R2/B1Q1r1Q1/Qr1P3B/1P1Pq1q1/2k1b1pb/7b b - - 0 1 legal: proof: g4 d5 f4 h5 f5 hxg4 f6 a5 c3 d4 cxd4 exf6 Nh3 f5 Ng1 f4 b3 a4 Nc3 a3 Rb1 Bf5 Rb2 Bc8 Nb5 axb2 a4 Nh6 a5 Nd7 a6 Ne5 a7 Rb8 Nc3 Ng8 a8Q Nc6 Qa7 Ra8 Qb8 Na7 Qxa7 Ba3 Qb8 Bf8 Kf2 Ke7 e4 Ke6 h4 b1B h5 g5 e5 Kf5 h6 c5 h7 c4 e6 g3+ Kf3 g4+ Kg2 Ne7 Na2 Ke4 Rh3 f5 Ne2 Kd3 Rh4 c3 Ba3 c2 Qd6 c1Q Bb4 f3+ Kh1 g2+ Kh2 g1B+ Kg3 f2 Kf4 g3 Ke5 f4 Rh6 f3 Bg2 f1B Nec3 f2 Bd5 Qc7 Qg4 Be2 Qh4 f1B Ba5 Bg2 Qg5 Bh2 Rf6 Bh1 Nb5 Kc2 Nac3 Ra6 Bc4 Rb6 Nd5 Rg8 h8B g2+ Rf4 Qb8 Nbc7 Rb4 Bf6 Qg1 Qc5 Qe3+ Kd6 Nc6+ e7 Be6 Bh8 Bg7 e8Q Bf6 Ne7 Rf8 Qd7 Re8 Bg7 Bg8 Bf7+ Kd1 Bh6 Bbh7 d3 Kd2 Qg3 Kd1 Bg5 Kd2 Bh4 Bg5 Nd5 Bd8 Rf6 Re5 Qg5 Kd1 Ne7 Kd2 Qb6 Kc2 Qe8 Qc8 Qd7 Nb8 Qa4 Qg4 Ne8 Qgg3 Qc5+
r2r4/b2r3q/RqQpq2N/3n2B1/k3qQ1K/1rpQ1PR1/PP1N4/2n3N1 b - - 0 1 illegal: No possible last move
2B5/1p3b1P/2Pp1n2/3BNK2/q2q1b1b/B4NkQ/Q1rPqbnq/N5R1 b - - 0 1 illegal: No possible last move
3RR2n/nb1P4/rPBB3k/n4bnP/pn1b1Q2/QpR1rN2/1K6/5bQ1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 h5 g4 e5 gxh5 exf4 Na3 Qb6 Rb1 cxb4 c5 b3 Ra1 b4 Nc4 Qb5 axb5 dxc4 d4 f5 Kd2 Kf7 h4 g5 e4 Kg7 e5 a5 e6 a4 e7 f3 e8R f4 d5 g4 b6 c3+ Kd3 c2 d6 b2 c6 b1B d7 f2 c7 f3 Ne2 g3 Rh3 b3 Kc3 g2 Kb2 g1N Qd2 Bb7 c8Q Nc6 Qa5 Nh6 Nf4 Bc5 Qb4 Ra6 Bb5 f1N Ne2 f2 Nd4 Ne3 Qc7 f1B Qf4 Nf7 Qa3 Nf3 Rd8 Na7 Bc6 N3g5 Nf3 Re8 h6+ Kg6 h7 Nh8 h5+ Kh6 Bd2 c1N Bb4 Na2 Rg3 Bf5 Re1 Nc3 Re2 Bd4 Bd6 Re5 Rc2 Ncd5+ Rc3 Nb4 Rg2 Ng4 Re2 Re3 Re1 Rd3 Ree8 Ne5 Bd5 Nec6 Be4 Na5 Bc6 Nf7 h8Q+ Bh7 Qf5 Re3 Qg8 Nh8 Qf4 Bc2 Qe6+ Bg6 Qeg4 Bf5 Qg1
1bR3n1/BqQ5/1brN1pnb/1rP1k3/3Q4/4p3/BpPN1q1P/1Q1q2NK b - - 0 1 legal: proof: e4 a5 b4 h5 g4 hxg4 a4 c5 bxc5 d5 Ra2 dxe4 f3 e5 Kf2 e3+ Kg2 e4 Ra3 e2 Rc3 e3 Rb3 Bf5 Rb4 Be4 fxe4 axb4 d4 Kd7 e5 Ke6 a5 e1B a6 g5 a7 b5 Qd2 b3 Qa5 f6 Qb4 g3 Nd2 b2 Ne2 b1Q Qb2 g4 Ng1 b4 Ndf3 b3 Bd2 Bh6 Ba5 Nc6 Bb6 Rb8 a8Q Ba5 Nd2 Nce7 Qa7 Ng6 Qc7 Qd6 Ba7 Rb5 Qc1 Bb6 d5+ Kf5 e6 Ke5 e7 b2 Qd8 Qb8 e8N Qb7 Bc4 Rh7 Qe1 Rc7 Ba2 Rc6 d6 Qc1 d7 Qd1 Nd6 Qc1 Kf1 g2+ Ke2 g3 Kf3 Qb1 Qc7 Qc1 d8Q Qd1+ Ne2 g1B Kg2 Bf2 Ng1 Qe2 Qb1 Qd1 Ne2 Be1 Rf1 Bf2 Ng1 Be1 Rf4 Bf2 Rh4 Be1 Kh3 g2 Qdd7 Bg3 Qg4 Bhf4 Rh8 Bh6 Qh4 N8e7 Rc8 Ng8 Ne2 g1Q Qc4 Qh1 Ng1 Qhf3 Qg4 Qf4 Kg2 Qf2+ Kh1 Bh4 N6e4+ Kd4 Qg7 Bg3 Qh4 Bb8 Nd6+ Ke5 Qc7 Bg7 Qb4 Bh6 Qd4+
5KbB/3B1p2/2q1b2R/rB4p1/3Rp1Pr/1R3q1r/nPnQP2Q/1kNb4 b - - 0 1 legal: proof: d4 g5 f4 c5 a4 cxd4 f5 a6 a5 e6 Nc3 Bc5 Nd5 Ba7 Ne7 b6 Ng6 hxg6 axb6 gxf5 bxa7 f4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 Kd6 e5 g4 d3 h4 d2 h5 f3 h6 f2 c3 a5 h7 a4 Ra2 a3 Rh4 Nh6 Ra1 a2 Bh3 f1Q Qe1 Kb3 c4 Kc2 c5 Qb6+ Ke7 d5 c6 d4 c7 d1B Qb4 Be6 c8B Na6 Bd7 Qg2 Qd6 Nb4 Bf4 Qb5 Nf3 Nf5+ Kf6 Rag8 a8R Ne3 Ke7 Rg6 Ra6 Rh6 Ra4 Qa6 Nd2 Qe4 Rb1 a1R Qd5 Ra3 Ra1 Ra8 h8Q Rd3 R1a3 Na2 Nf3 Kb1 Ne1 Bc2 Rb3 Qb5 Rh5 Ra5 Kf8 Rc3 Rab4 d3 Bg2 d2 Nd3 d1B Nc1 Qf5 Be4 Qc6 Qd2 Qf6 Bd5 Bh7 Rd4 e4 Be5 Nc2 Bc4 Bg8 Bb5 Rg3 Rh4 Qf3 Qh7 Rh5 Bh8 Rh6 Qg7 Rh3 Qe5 Rf6 Rh7 Rfh6 Qh2 R6h4 Rh6
3bbb2/p2P1R2/BNqr1P1R/5kpn/2Qqp1RQ/6N1/5N1P/q1rn3K b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 c4 fxe4 g4 d5 cxd5 h5 Ba3 hxg4 axb5 Bb7 b6 Ba6 b5 Bc8 Bb4 cxb4 d4 Kd7 f4 e5 Kf2 e3+ Kg2 e2 f5 e1Q b7 g3 d6 e4 b6 b3 d5 b2 Qc1 Rh6 Nc3 b1Q Ba6 Ne7 Nd1 Qb5 Ne2 Qc6 Qc4 g5 Rg1 Qa5 Nf2 Re6 Raf1 Qa1 Kh3 g2 Ng3 Ke8 d7+ Kf7 d6 Kf6 Rc1 Nd5 Rcf1 Qdc7 d8R Bd7 Re8 Qd8 Re7 Nc3 Rf7+ Ke5 Rh7 Be8 Rh6 Nd7 b8N Nd1 b7 Nf6 Nd7+ Kf4 b8Q Nh5 Nb6 Ke5 Qb7 Rc8 Qh7 Qf6 d7 Rd6 Nfh1 Qd4 Rf4 Qg7 Nf2 Qh8 Rf1 g1B Kg2 Qa1 Kh1 Qf6 Nh3 Bd4 Qh8 Bc3 Nf2 Ba5 Rg4 Qg7 Na8 Bd8 Qh7 Qf7 Nb6 Qfd5 Rf6 Qdd4 Rf7 Ng7 Qh4 Nh5 f6 Rc7 Re1 Rc8 Re3 Rc7 Ne2 Rc8 Rh3 Kf5 Ng3+ Ke5 Kg2 Qcc5 Qe2 Ng7 Qh6 Qcd5 Kh1 Rc1 Qc4 Qc6 Qg6 Qab2 Rh6 Qa1 Qb4 Ke6 Qh5 Ke5 Qh4 Nh5 Qc5+ Ke6 Qc4+ Ke5 Nf1 Kf5 Ng3+
R1N3K1/2N1bQBn/5r1p/Prk2p2/P2QR2Q/P1pq1b1R/n3n3/5rn1 b - - 0 1 illegal: Other
2rk2K1/Qr4p1/N1BrP3/N1bn1q2/bP2Qrnp/1Qp5/1PB1R1B1/5b2 b - - 0 1 illegal: No proof kernel
1Rk1B2K/2P2b2/1p3N2/2QqBrN1/3p1rbp/2P1nrP1/n3b1Nb/4Q2Q b - - 0 1 legal: proof: b4 a5 h4 axb4 d4 e5 e4 f5 exf5 c5 dxc5 g5 a4 gxh4 Ra3 Nh6 Rd3 Ng8 Rd4 exd4 Ke2 d5 Kd3 Kd7 f4 h5 c6+ Kc7 g3 h3 f6 b3 a5 h2 f7 b6 f5 b2 a6 Qe7 f6 Qe6 a7 Bb4 f8N Na6 c3 Bc5 f7 Nh6 Nh7 Rf8 Nd2 b1R Qe1 Rb5 Ne2 Nf5 Ne4 Ne3 Nf4 h4 Nef6 Bd7 Ng2 Kc8 c7 Qc6 Bd2 Bg4 Ng5 Qd6 Rg1 h1B Be2 Rb8 a8Q Qc6 Bd1 Qe6 Ba4 Qe5 Bc1 Nb4+ Kd2 Na2 Kd3 Rb4 Be8 Ra4 Qc6 Rba8 Rf1 R8a5 Rf2 Qe6 Rb2 Rb5 Rb3 Qd7 Ra3 Rc4 Ra7 Be2+ Kd2 d3 Rb7 Rf4 Ba3 Bd4 Bd6 Rf3 Bf4 Bc5 Be5 Rb4 Qe6 Rbf4 Qh3 Rf5 Nf4 Bg2 Qhh1 Bh3 Ng2 Bg4 Qh2 Nc2 Qhh1 Bg1 Nfh7 d4 Nf6 Rh8 f8Q Bh2 Qe7 Ne3 Qc5 Rf8 Nge4 Rh5 Nd5 R8f4 Ndf6 Rhf5 Ng5 Nb4 Kc1 d2+ Kb2 Na2 Kb3 Nd5 Kc2 Qf7 Kb3 Rd3 Kc4 d1B Kb5 Bb3 Kc6 Qg7 Kd6 Rdf3 Ke6 Qf8 Qd2 Qd6+ Kf7 Qc6 Kg7 Ne3 Qde1 Bf7 Kh8 Qd5 Rb8#
4bR2/QK3Pp1/1nnrQ3/1P6/pRqb1kQP/1q2N1pb/1NB3b1/r1R5 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 exf5 e5 g4 h5 Bh6 hxg4 Ke2 e4 Bc1 e3 Bd2 exd2 Kd3 Kf7 Kc4 Kf6 Kd5 Kg5 h4+ Kf4 b4 a5 c4 d6 b6 g3 b5 a4 c5 d3 b7 Qe8 c6 Qe2 f6 Nd7 b8Q Ra6 c7 Nb6+ Kc6 d5 f7 d4 Na3 Bh3 Nc2 Ne7+ Kb7 Nc6 Rb1 Bc5 Rb4 Re8 c8Q+ Re5 Qe1 d1B Nf3 d2 Ne3 Qc4 Qa7 d3 f8R+ Rf5 Qd7 Bd4 Ne5 Bf3 Qd1 Bd5 Qe6 Bdg2 Qe2 d1Q f3 Qcb3 N5c4 d2 Nb2 Qdc2 Qd1 Qc5 Bd3 Qcc4 Qe2 Rf6 Rc1 d1B Be4 Bc2 Bh7 Bg6 Qg4+ Ke5 f4+ Ke4 f5+ Ke5 Qd3 Be8 Qde2 Re6 f6 Re7+ Qd7 Kf4 f7 Re4 Qe6 Re5 Ned1 Re4 Qh5 Re1 Ne3 Rd1 Rc3 Rb1 Rc1 Ra1 Bc2 Nb8+ Qc6 N6d7 Qcd5 Rd6 Qd1 Nc6 Qe6 Nb6 Qdg4+
bRqB2K1/Bq2P2r/2p1rQ1Q/4k2R/1P3bn1/2Rnp2r/1p3rP1/B6N b - - 0 1 illegal: No possible last move
1BN5/2qP1P1r/b1rbbRK1/N1p3R1/4nQ1N/2pP1q2/1p1bnR2/6Qk b - - 0 1 legal: proof: e4 g5 b4 f5 exf5 d5 h4 gxh4 c4 a6 b5 axb5 cxd5 Nf6 Bd3 Ng8 Bc4 bxc4 Ke2 Kd7 Kf3 Kd6 Kf4 b5 Kg5 Ke5 a4 Ke4 g4 c5 f4 e5+ f6 h5 f5 b4 a5 c3 a6 h3 a7 h4 d6 h2 d7 b3 Ra5 b2 Ra6 h3 Kg6 Bd6 g5 Nc6 f7 Nd4 f8Q Ne2 f6 Rh7 Na3 Qc7 Nc4 Kf4 d3+ Kg3 f7 Kg2 Na5 e4 Bf4 e3 Qh6 Nf6 Nf3 Ne4 Rf1 h1Q Be5 Rb8 a8N h2 Nb6 Bb7 Qh4 Rc8 Qf4 Bd5 Qe1 Be6 Qa1 Rb8 Nc8 Rb6 Qc1 Rc6 Qa1 Nc1 Rb6 e2 Ra6 e1B Rf2+ Kh3 Qb1 Ne2 Nh4 Bd2 Qg1 Qf3 Rb6 h1B Ra6 Qa7 Rb6 Bf8 Bb8 Qc7 Rb4 Bd6 Rd4 Bb3 Rd5 Ba2 Rf5 Bc4 Rf6 Ba6 Kf5 Bg2 g6 Bf1 g7 Bg2 g8R Bh1 Qa1 Bg2 Rg3+ Kh2 Qa3 Kg1 Kg6 Kh1 Rg5 Bh3 Qa4 Bg4 Qd4 Be6 Qde3 Qg2 Qeg3 Qf3 Qg1+
b1N3n1/1rPRr2n/2nb2Bp/1n2pP1k/7q/Q2Q3P/N1B2qp1/K5QB b - - 0 1 illegal: No possible last move, all moves rejected
1Q4B1/4qNNB/p3q1pn/PnP1r1pq/bq4q1/R2k4/r1NP4/1Q2BK2 b - - 0 1 illegal: No possible last move
KQq1n3/4p3/1qNR2Bk/1RRqPB2/1r4pP/1Pn2pB1/3bq2q/2Q4b b - - 0 1 legal: proof: f4 c5 d4 cxd4 f5 b5 f6 a5 Bg5 b4 Bd2 a4 Bc1 b3 axb3 gxf6 Kd2 f5 Ke1 f4 g4 a3 Nc3 h6 Ne4 a2 Ng5 Ra3 bxa3 Nc6 N5f3 Nb8 g5 h5 Ne5 Qc7 Ng4 hxg4 Qd3 Qb6 Qd1 Qd8 Kd2 f5 Kd3 Kf7 Kc4 Kg6 Kc5 d5 h4 d3 e4 f3 c4 d2 a4 f4 a5 f2 e5 d4 a6 d3 a7 Bh6 a8B Qd7 Kb6 Na6 c5 Bb7 Ka7 Qc8 c6 Nb4 c7 Nf6 Ne2 Nbd5 Nd4 Nc3 Nc6 Ne8 Rh2 Kh7 g6+ Kg7 Bg2 f1Q Be4 Qg2 Bf5 Rf8 Qc2 d1Q Rh1 Qdd2 Rd1 Qde2 Be3 d2 Qc1 Qh1 Bf2 Qh2 Be1 Bg5 Bg3 Kh6 g7 Rf6 g8Q Rg6 Na5 Bh1 Bae4 Rb6 Nc6 f3 Bg6 Rb4 Bef5 Qd8 c8R Qb6+ Ka8 Be3 Re1 d1Q Rb8 Qdd4 Rd1 Bd2 Rb1 Qde4 Rb2 Qd5 Rc2 Na4 Rb7 a1Q Rc5 Qad4 Rb8 Nc3 Rb7 Qc7 Rbb5 Qb6 Bh5 Qe6 Bhg6 Qdd5 Qf8+ Ng7 Qb8 Ne8 Qb7 Qc8+ Qb8 Bf4 Rd4 Bd2 Rd3 Qde6 Rd7 Qd5 Rd6
N4kBq/rn1p1P1p/2b3RQ/np3P2/1q1NN3/1P4Q1/3b2R1/1n1nRnK1 b - - 0 1 legal: proof: d4 a5 h4 c5 e4 cxd4 h5 f5 exf5 a4 b3 a3 Bb2 axb2 h6 Ra6 a4 b5 a5 Rb6 axb6 gxh6 Ra3 h5 Ra1 h4 c4 e5 g4 d3 f4 d2+ Kf2 e4 g5 h3 g6 h2 f6 Bh6 f5 Kf8 c5 Na6 c6 Bg5 c7 Qe7 b7 Qg7 b8Q Ne7 Nc3 b1N Ra2 Nc5 Qc1 Nb7 Nf3 Nc6 Bc4 Nca5 Re1 h1N+ Kg1 d1N Bg8 e3 Ne4 e2 Nd4 Ng3 Qe3 Nf1 Rb2 Bh4 Qh6 Bg5 Rc2 Bd2 Rc6 Nd8 Ra6 Bb7 c8N Bc6 Qg3 Ndb7 Nb6 Nc4 Ra2 Nca5 Na8 Ke8 Bc4 Rg8 Bd5 Qh8 g7 Rf8 Ne6 Kf7 g8R Rc8 Rg6 Rc7 Nd4+ Ke8 Qhh2 Kf8 Rc2 Nc5 Bc4 Ra7 Bg8 Ncb7 f7 Nf2 Rd1 e1Q Rdc1 Nd1 Qh1 Bg5 Rg2 Qb4 Qhh4 Bd2 Qf6 Nde3 Re1 Nd1 Qfh4 Na3 Qh5 Nb1 Qh6+
bK6/2n3n1/kQ1q2B1/bqpP1pBQ/4P2P/2r1pRb1/N1bNn1N1/4B3 b - - 0 1 illegal: No possible last move, all moves rejected
N4rbB/k2B2b1/2R2q1P/p3pN1P/q1nN4/P4bp1/n1q2QB1/3QK1b1 b - - 0 1 legal: proof: c4 f5 e4 fxe4 h4 d5 g4 Na6 h5 Nb8 b4 c5 bxc5 dxc4 h6 a5 Qc2 b5 Bg2 Ra7 Qa4 Rd7 Qd1 Rd5 Bf1 Rh5 gxh5 Bg4 a3 Qd7 Rh2 Qc8 Rg2 Qd8 Rg3 Bf5 Rg6 hxg6 Nh3 Qd3 Nc3 Bd7 Qf3 Be6 Bg2 Bf7 Kd1 Qd4 Bb2 Qd8 Ke2 Qd5 Rh1 Nf6 Bc1 Qd3+ Ke1 Qd5 Nb1 Be6 Bf1 Ng8 Qd1 Bc8 Ng1 Qd8 d4 Kd7 f4 Kc6 d5+ Kb7 d6 e5 f5 b4 d7 g5 c6+ Ka7 c7 b3 f6 e3 f7 b2 Qf3 e2 Nd2 b1B Ne4 g4 Nf6 g5 Rh4 c3 Nd5 c2 Nf6 Na6 Qe4 Nb4 Kd2 Na2 Qf5 Bb7 c8B Ne7 Ne4 Nd5 Nf3 Ne3 Nd6 Qb6 d8Q e1Q+ Kd3 Qc3+ Ke2 Qcc6 Ke1 Qa4 Qf4 Be4 Qg3 Bh7 Nf5 Qbc6 Bd2 Qe6 Bb4 c1Q+ Qd1 Be4 Be7 Qcc2 Bf6 Qd6 Bg7 Qf6 Qf2 Rg8 Bh8 Bg7 f8N Bd5 Nd7 Rf8 Nb6 Bhg8 Bd7 Bc6 N3d4 Bf3 Ne2 g3 Bh3 g2 Na8 g1B Rc4 g4 Rc6 g3 Ned4 Nc4 Bg2
Q4r1N/1K1Q2rp/pP1N2N1/1r3qB1/1Q1p4/1r4bb/1P1nPqR1/k4qR1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 gxf4 g4 e5 g5 b5 axb5 Nc6 Bh3 Nce7 h5 Ng6 Bg4 e4 Bf3 exf3 hxg6 Be7 Nh3 Ba3 Ng1 Bf8 Kf2 Ke7 c4 Kd6 b6 Kc5 g7 Kb4 g6 d5 c5 f5 c6 a6 c7 d3 Nd2 d4 Qf1 Qg5 Rh6 Ra7 Rh3 Nf6 g8Q Bd6 g7 Ne4+ Ke1 f2+ Kd1 f3 Rh2 f4 Qe1 f1Q Nc4+ Kb3 Nh3 f2 Rg2 f3 Nf4 d2 Ng6 Bh3 c8Q Qf5 Qd7 Bg3 Qa8 Rf8 g8N Qg1 Nh6 f1R Nf7 f2 Rb1 Ka2 Kc2 d1R Nfh8 Rd3 Bg5 Rb3 Nd6 Rb5 Qb4 Nd2+ Qe4 Rd1 Kd3 f1Q Rc1 Qgf2 Rb1 Nf3+ Kc4 Rd3 Qa8 Rb3 Rh2 Q1g2 Rg1 Qgf1 Rhg2 Ka1 Qc5 Qd3+ Kd5 Qf5+ Kc6 Nd2 Qb4 Rb7 Qde8 Re7 Qd7 Rg7 Kb7
1BbbN3/1Q2nP2/K3p3/2Q1n2P/B3PpQp/1q3b1q/N1B2n2/4krRn b - - 0 1 illegal: No proof kernel
2Nqb2b/1P4nK/3p4/r2R3Q/ppP1P1QB/q1Br1N2/kq6/2qQbB2 b - - 0 1 legal: proof: f4 h5 d4 e5 b4 exf4 g4 b5 gxh5 Na6 a4 c5 c4 bxa4 b5 Qb6 Ra2 Qc7 Rb2 Qd8 Rb4 cxb4 Be3 Qb6 Bc1 Nc5 dxc5 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 f5+ Kd4 a5 e4 a3 h6 a2 b6 a1Q+ Kd3 d6 h5 g4 h7 a4 h6 f3 b7 f4 c6 f2 c7 f3 Bg2 f1Q+ Qe2 f2 Nc3 g3 Bd2 Qb2 Bh3+ Ke5 Bg2 Qfc1 Nd5 f1Q Be1 Ne7 Rh5+ Nf5 Ne7 Bd7 c8Q Ra5 Bh3 g2 Bh4 Qff4 Qd1 Be8 Rg5 Rg8 h8B+ Bg7 h7 Qh2 Qd7 Qa3+ Ke2 Bf6 Nc8 Rg6 Rh5 Rg3 Qg7 Rd3 Qg4 Kd4 Nf3+ Kc3 Bg7 Kb2 h8Q Ne3 Rd5 Ka2 Qhh5 g1B+ Bg2 Ba1 Bc3 Bf2 Bf1 Nf5 Ng1 Rh3 Nf3 Be1+ Kd3 Ng7 Kd4 Qcb2 Ke3 Qg1+ Kf4 Rg3 Ne7 Qh1 Kg5 Qg1 Kh6 Qe3+ Rg5 Qec1 Kh7 Rh3 Rd5 Rg3 Nh2 Rd3 Nc8 Nf5 Na7 Qf2 Bd2 Bh8 Nc8 Ng7 Bc3 Qfb2 Nf3
1Nn1BqNn/ppN1P3/nnqk1b2/1p1R4/BB1r3Q/1b1Q2KP/P5b1/8 b - - 0 1 legal: proof: d4 d5 c4 e5 cxd5 h5 g4 hxg4 b4 c6 d6 Rh5 d5 Rh4 b5 cxb5 Na3 Rh8 e4 Kd7 f4 Na6 f5 Ke8 Rb1 Be6 Rb4 Bd7 Rd4 exd4 e5 Rh6 Bf4 Re6 fxe6 Rc8 Bd2 Rc3 Bg5 Rh3 Bc1 Rh8 Kf2 g5 h3 f5 e7 d3 Bd2 g3+ Kg2 f4 Bc1 g4 Nb1 d2 Qe1 d1B Nd2 Bg7 Ne4 Bc6 Qe2 Kd7 Nf3 Bf6 Nd4 Bb3 Qd3 Rh4 Ne6 Qf8 Bd2 f3+ Kg1 g2 Kh2 g1N e8B+ Kc8 Bb4 f2 Nc7 Ne7 e6 Nf3+ Kg3 Ne5 Be2 N5g6 Bd1 Nh8 d7+ Kb8 d8Q+ Nc8 d6 f1N+ Kf2 Bcd5 d7 Ne3 Kg3 Nc4 Rh2 Nb6 Rc2 Bc6 Rc5 Bcd5 Qe7 Bc6 d8N Bcd5 Kg2 g3 Kf3 g2 Kg3 Rf4 Qh7 Rh4 e7 Rf4 Qh4 Rg4+ Kf3 g1Q Bc2 Qd4 Bd1 Rf4+ Kg3 Qe5 Bc2 Qd6 Bd1 Qc6 Bc2 Ba1 Nf6 Bg2 Ng8 Bf6 Bd1 Rd4 Bc2 Bc4 Ba4 Bb3 Nce6 Qd7 Nc6+ Ka8 Ne5 Qc6 Nd7 Nd6 Ne5 Kb8 Nd7+ Kc8 Nf4 Kc7 Nb8 Ndc8 Nd5+ Kd6 Nc7 Bc2 Be1 Bd1 Bb4 Bb3 Rd5+
b1RNQ3/n5Rr/1Qpn2rr/5N2/1b2Bk1P/4Npp1/b1KP1rP1/3r3Q b - - 0 1 legal: proof: c4 d5 e4 dxc4 f4 g5 b3 Qd5 exd5 h6 Bb2 b6 a4 b5 Bf6 gxf4 Bg5 hxg5 axb5 Bb7 Bd3 Ba6 Bf1 Bc8 h4 Kd7 b6 Kd6 b7 Ke5 d6 f5 b4 a5 d7 g4 d8Q g3 b5 a4 b6 c3 Rh3 c2 Rh2 c1R Na3 f3 Ba6 f4 Rh1 f2+ Ke2 f1B+ Ke1 f3 Qd3 Rc6 Nh3 Nf6 Q1b3 Rh7 Kd1 Ne8 Nf4 Nd6 Nb5 a3 Qdb1 a2 Nd4 Bc4 Bb5 Ra6 Qc1 e6 Rb1 a1R Qbb2 Ba2 Nd5 Ke4 Rg1 e5 Ne3 Kf4 Ndf5 e4 Bd3 Bce6 Qd4 Bed5 Qdc5 Be7 Kc2 Bf8 Qf1 Be7 Rb5 Rd1 Rh1 Bf8 Qg1 Rf1 Qh2 Rf2 Rc1 Be7 Qh1 Bf8 Nf1 e3 Be4 e2 N1e3 e1R Rb3 Nd7 b8N Ne5 b7 Rd1 Rc3 Rcb6 Nc6 Be7 Nd8 Nc6 b8Q Na7 Qb5 Ba8 Qe8 Nc4 Rb1 Rbh6 Rb6 Bb4 Rg6 Rb6 Rg7 Rbg6 Qb6 Nd6 Rc5 Rdf1 Re5 Rd1 Ree7 c6 Rc7 Rf6 Rc8 Re6 Qd4 Reg6 Qb6
1R5n/1P1n1r1P/r2pQ1pr/B2b4/N3QP1b/pb3nR1/2RNr3/1K1k2Q1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 g4 fxe4 Be2 b5 axb5 Qb6 Bf3 Qc5 Be2 Qf5 gxf5 Nc6 Bf3 Nb8 Bg4 hxg4 Kd2 Kf7 h4 Kf6 b4 a5 c4 e5 Kc2 g3 b6 g6 b5 a4 b7 e3 h5 d6 h6 e4 c5 d3+ Kb2 d2 c6 g2 c7 e2 b6 e1R Ne2 g1N Rh2 e3 Rh5 a3+ Kc2 Ra6 Ra2 Nf3 Rh1 Nd7 b8R Be7 Rh3 Bb7 c8Q Bd5 Nec3 Re2 Qg1 d1B+ Kd3 Bd8 b7 B1b3 Bd2 Rh7 Rg3 Rf7 h7 Nh6 Na4 Rh2 Qc5 e2 Ba5 e1R Qc2 Ree2 Nd2 Rg7 Nc5 Nf7 Na4 Rh6 Qcb1 Nh8 Kc3 Ke7 f6+ Ke6 f7 Bh4 f8Q Re7 Qd8 Rf7 Kd3 Kf5 Qe7 Bbc4+ Kc2 Bb3+ Kc1+ Bc2 Qb4 Bd1 Nc4 Bb3 Qf6+ Ke4 Rc2 Kd3 Qe6 Re3 Nd2 Ke2 Kb1 Re5 Qgc5 Kd1 Qbc4 Re1 Qce4 Re2 Qg1+
2N3BQ/p5n1/2Pqn1KP/5rR1/P2kn3/1pQ3pn/2nqrNR1/1q2NQ2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 Ne2 cxb4 Rg1 e5 Kf2 e3+ Ke1 e4 Rh1 Bd6 Ng1 Be5 g4 f5 Bb2 h6 Bc3 Bc7 Bf6 Be5 fxe5 f4 Bg5 Bf5 gxf5 hxg5 Ke2 Kd7 c4 Kc6 d4 b5 a4 b3 h4 g4 f6 g5 h5 g3 f7 b4 f8Q g4 c5 Kd5 e6 f3+ Ke1 f2+ Ke2 b2 c6 g2 e7 b3 e8N g3 h6 Na6 Nf3 Nc7 Qe1 Nf6 Nd6 Nfe8 Ra2 Ne6 Qc3 N8g7 Nbd2 b1Q Nc8 Qd6 Ne1 Rg8 Qf3 Rf8 Rh5+ Rf5 Rg5 Rb8 Nc4 Rb7 Ne5 Re7 N5d3 Re8 Qd2 Kc4 d5 Kd4 Qc1 Qe5 d6 g1N+ Kd1 e2+ Kd2 Re7 d7 Qd6 d8Q Nh3 Qh8 Re8 Ng2 e1N Qc3+ Kd5 Ke2 Nc2 Nge1 Re7 Qf4 e3 Kf3 e2 Kg4 Re8 Qc1 Ke4 Qd1 Ke3 Bg2 f1N Bd5 Nd2 Bc4 Ne4 Bd5 Nf8 Bg8 Nfe6 Nf2+ Qd3 Nf3 e1Q Qc1+ Qd2 Qf1 Re7 Ne1 Re8 Qa5 Qd6 Kh4 Kd4 Qc3+ Kd5 Kg4 Re7 Kh4 Ne8 Kh5 Ng7+ Kg6 Re8 Qf3 Kc5 Rb2 Kd4 Qc3+ Kd5 Qg1 Ne3 Qf1 Qe2 Qf6 Nc5 Kf7 Nd4 Rd2 Nc2 Nfd3 Qed1 Rh2 Qd2 Nf2 Re2 Kg6+ Nde6 Rg2 Ne4 Qe5+ Kc4 Qa5 Kd4 Qc3+
2N2b2/n1nNQ3/1pqn4/1PN3pq/k1BqbRb1/P1RRqP2/K2pQ3/8 b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 b5 f5 Ba3 fxe4 Bb4 axb4 h4 g5 h5 Ra3 f4 Rf3 gxf3 h6 Bg2 Rh7 Bh3 Rg7 Bf1 Rg6 hxg6 h5 Kd2 e5 Kc1 d5 Kb2 Kd7 c4 h4 c5 b3 a3 h3 c6+ Kc7 g7 Kb6 c7 Ka5 f5 d3 f6 d4 f7 h2 Ne2 b6 Qc1 d2 Qc5 d1N+ Kc1 e3 Qc3+ Ka4 Qc2 e4 Ng3 d3 Qf2 e2 Ra2 e1Q Ne2 e3 Qg2 Qc3+ Rc2 Qc6 Rc3 Na6 Nd2 b2+ Kb1 Ne7 g8R Nf2 Nc4 d2 Nf4 e2 Nd3 e1Q+ Ka2 Qe3 Nce5 Bg4 c8N Ne4 Nd7 Nd6 Qe2 Nc7 Rg1 h1Q N3c5+ Ka5 Rg6 Qh8 Rf6 Qh5 Rd3 b1B+ Ka1 Qa8 Rf4 Nc6 Kb2 Bc2 Ka2 Na7 Rh1 Qc6 Rh4 Bg7 f8Q Qf6 Rc4 Qfd4 Qe7 Bf8 Rcc3 Bh3 Na6 Ka4 Rf4 Bf5 Bh3 Be4 Be6 Bf5 Bc4 Be6 Rb3 Bg4 Rdc3 Bg6 Rd3 B6f5 Rbc3 Be4 Nac5+
B1Q2n1n/pKPpRB1R/2nP2N1/3rP2R/r1p1r1Q1/4B3/kn2n1n1/4q3 b - - 0 1 illegal: No proof kernel
2Q3b1/4k3/r1rPnq2/1pBBR1N1/1b2P3/pN2Qb2/r1pPpK2/n1B2Q2 b - - 0 1 illegal: No possible last move
2K1br1r/1NB2R2/p2PpPpB/Bb5k/p1rQ1n2/7N/PQ2qb1n/N7 b - - 0 1 legal: proof: e4 d5 g4 h5 c4 hxg4 cxd5 f5 exf5 c6 b4 Qd7 Na3 Qd8 Bb5 b6 Ba4 b5 Rb1 bxa4 b5 Rh6 b6 Rh8 Rb5 cxb5 Ke2 Kf7 Ke3 b4 Kd4 b3 Ke5 b2 h4 b1B f4 e6 d4 a6 b7 g3 h5 g2 f6 g6 d6 Bf5 d7 Bd3 d5 Be7 h6 Qb6 d8N+ Ke8 h7 Bc5 f7+ Ke7 f5 Bd7 Nc2 Be8 Bh6 Nf6 Na1 Bdb5 Qd4 Nh5 Nh3 Nf4 Rf1 g1R Rf2 Rf8 h8Q Rc1 Qg7 Rh8 Rf3 Rc4 Qf6+ Kd7 f8B Qc6 Qb2 Bf2 Bb4 Qc8 Qh4 Nc6+ Kf6 Ne5 b8B Qc5 Bc7 Qe3 Bba5 Qe2 Nb7 Rb8 Qg4 Rc8 Qg1 Ra8 Qd1 Rc8 Qdd4 Ng4+ Kg7 Nh2 Kf6 Be3 Ke5 Ke7 Rf2 Kf7 Kd6 Kg8 Rf3 Kh7 Ke7 Bf2 d6 Nd3 f6 Nf4 Rb3 Bed7 Rc3 Rcf8 Rc1 Be8 Kd8 Bbd7 Rc2 Bb5 Kc8 Nh5 Bhd2 Nf4 Rc3 Kh6 Rb3 Kh5 Rb4 Nd3 Bh6 Nf4 Nc5 Qe4 Bb8 Bbc6 Rb7 Qe3 Rf7 Bb5 Bbc7 Qe2 Nb7
b1B2Nr1/3r1B1K/n1Q5/1p1pP1P1/4nbQ1/1PbN4/4Np1p/qk1qB2R b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 h4 b5 d3 g5 hxg5 Qb6 a5 Qd6 Ra3 Qb6 d4 cxd4 Rc3 dxc3 axb6 Bg7 Na3 Bh6 Nb1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kf3 Ke5 e4 a5 g4 f5 b7 h5 g6 a4 g5 c2 c5 a3 c6 a2 g7 a1Q c7 h4 b3 h3 Bd2 Kd4 e5 c1B Nc3 h2 Nge2+ Kd3 Ne4 Nf6 g8B Ra7 Nd6 Ne4 Bf7 Na6 b8N Rg8 Bg2 Bb7 c8Q Ba8 Nb7 Bb4 Nd7 Bc3 Be1+ B1d2 Qc1 Be3 Qc6 Bed2 Qa3 Kc2 Qa4 Kb1 Nf8 Be3 Nc5 Rd7 Nd3 Bc1 Bf1 B1d2 Kg2 f3+ Kh3 f4 Kh4 f2 Kh5 f3 Kh6 Bf4 Bh3 f1Q Kh7 f2 Be6 Rd6 Bc8 Rd7 Qd4 Qg1 Qe3 Qg4 Qh3 Qg1 Qg4 Qf1 Bd2 Qd1 Be1
2bN3B/1Q1b1p1B/1pr1Np2/1K4P1/1PQ3Q1/5nqp/n2R3P/1qBk1rq1 b - - 0 1 legal: proof: d4 e5 f4 exd4 a4 b5 axb5 Na6 b6 Rb8 b7 Ra8 f5 Nb8 f6 gxf6 b4 Ne7 b5 Nd5 b6 Na6 b8B Ne7 b7 Ng8 c3 Bb4 cxb4 Nc5 Ra5 Na6 Rb5 Nh6 Rb6 axb6 Qc2 Ng8 Qb3 Kf8 Qd1 Ke8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 g5 d5+ Kb5 c5 e3 h5 Kc6 h4 Ba7 h3 b8Q c4 Qb3 c3 Qb7 d3 Be2 d4 Qc4 c2 Bg4 d2 Bd1 Nh6 Ne2 Kf3 e4 d3 e5 Nc5 e6 Ng4 e7 Ne5+ Kb5+ Ne4 e8Q Qd6 Bb8 Ra1 Qec6 Ke3 Qe8 Nf3 Nbc3 Qg3 Qed7 Kf2 Na4 Nc3+ Ka6 Ke3 Nd4 Na2 Kb5 Rd8 Qg4 Rd6 Be2 Rc6 Ne6 Kf2 Nd8 d1Q Bc7 d2 Nc5 Qdg1 Bd6 Ke1 Nce6 d1B Bd3 Be2 Bf8 Kd1 Bh7 Rb1 Bb2 c1Q Bg7 Ra1 Ba3 Qb1 Bh8 Bd3 Bc1 Bf5 Nc7 Bfd7 Nce6 Qf1 Rg1 Qfe1 Rg2 Qg1 Rd2+ Ke1 Qc7 Qe4 Bb2 Rc1 Rd5 Qb1 Qb7 Rd1 Rd3 Ke2 Bc1 Rf1 Rd2+ Ke1 Rc2 Kd1 Rd2+
4N2Q/1Pp2Q1r/2pp3q/Q1qN1b2/K5pB/1rP2k1P/N2RB1r1/bb3n2 b - - 0 1 legal: proof: f4 h5 e4 e5 fxe5 d6 a4 Be6 g4 hxg4 b4 Bf5 e6 Nc6 e5 Nd4 Ra3 Nb5 Rc3 Be4 d4 Bf5 Rc6 bxc6 Bb2 Nxd4 Ba3 Bd3 Bb2 Ba6 Bc1 Nb5 axb5 Bc8 Kd2 Ke7 Kc3 f5 Kb3 g5 b6 a5 h3 a4+ Ka3 g3 b5 f4 b7 g2 b8N g4 b6 f3 b7 f2 Nd7 Bg7 Nc3 Qf8 Qd4 Nh6 Nb1 Rh7 Nc3 Nf5 Na2 Ne3 Be2 f1B Qc3 Qf5 Kb4 a3 Nf6 Qh5 Qc5 Qh6 Ne8 Ra5 Qd5 Rb5+ Ka4 Rb3 Qa5 Bf6 Rh2 Bd7 Nf3 g1R Nd4 Rg2 Nb5 Bc8 Nbc3 Bh8 Bd1 Bd3 Be2 Nf1 Bg5+ Bf6 Bh4 Be4 Nc1 a2 Nd5+ Kd8 e7+ Kd7 Qb6 Ke6 Qa5 Kf5 e6 a1Q+ Na2 Bb2 c3 Bb1 Nef6 Ke5 e8Q Bd7 e7 Bdf5 Ng8 Ke4 Qf7 Qf6 e8Q+ Qe5 Bb5 Kf3 Ngf6 Qe3 Qh8 Qc5 Qh5 Bbe4 Bc4 Qc1 Ne8 Qh6 Qf7 Bb1 Bd3 Ba1 Ba6 Rg3 Rd2 Rg2 Be2+
r1nb3n/P2p1nKQ/Pp1B1Q2/Pk1n4/3nB3/7N/r1p2pRN/1Q4qN b - - 0 1 illegal: Other
BnB1QK2/1P1q2r1/1k1B4/2p2p2/1N2Np1n/pP3PQQ/5q1b/n1r1Rn2 b - - 0 1 legal: proof: d4 d5 a4 b5 h4 g5 axb5 gxh4 c4 c5 Ra6 Bd7 Rf6 dxc4 d5 e5 Rf4 Bc6 dxc6 exf4 e4 a5 Ke2 a4 Kf3 h6 Kg4 a3 Kf5 h3 g4 c3 e5 h2 c7 f6 Ke6 c2 c8B Ne7 g5 Ra7 b6 Ng6 Bg2 Bd6 Nf3 Nh4 g6 Rg7 Re1 h1Q Nbd2 Qh2 Ne4 Qc7 Qd2 Kd8 Qe3 Qc6 Bd2 c1N Nd4 Nb3 Qh3 Na1 b3 Rhh7 Nc2 Qd7+ Kd5 Qg3 e6 Qf3 Nb4 Rh8 Bb7 Re8 Ba8 Ree7 b7 Kc7 Bc3 Kb6 Be5 Qb5 Qh2 Nf5 Re2 Rh7 g7 h5 g8Q h4 Bf1 h3 Bd4 Be5 Qhg1 h2 Bh3 h1N Q8g4 Reg7 e7 Nhg3 Ke6 Qbd3 Bb2 Bd4 e8Q Qfe3 f3 Qdd2 Bg2 Rh1 Bh3 Nh4 Qh2 Rb1 Re1 Nf1 Qgg3 Rc1 Bf5 Qed3 Qhh3 Bg1 Be5 Qf2 Bg4 Qb5 Bd6 Bh2 Bf5 Rg4 Ke7 Rg7+ Kf8 Qc6 Be6 f5 Bc8 Qc7 Nd2 Qd7 Ne4
b4KbB/p1R3pp/Q1bnr3/r1N5/NP1pPk2/2b5/R1RPQ1Q1/5rr1 b - - 0 1 illegal: Other
Bqk1rqQ1/p1PQBPB1/R1pp1K1b/3P4/1Rrn4/2Q5/1pp4N/3r3b b - - 0 1 illegal: No possible last move, all moves rejected
KB2b3/RQP5/r1q2R1p/4rk2/Qpb1pN2/1r4pp/NP1rPN2/nR6 b - - 0 1 legal: proof: g4 g5 h4 gxh4 a4 c5 g5 f5 a5 h3 Bg2 Nc6 Bf3 Nb4 Bg4 fxg4 d4 cxd4 Ra2 b5 Ra1 Nd5 Kd2 Nb6 axb6 Bg7 Ke1 Be5 Be3 Bf4 Bxf4 Nh6 Bc1 Ng8 Kd2 Kf7 Kd3 Ke6 Ke4 a5 c4 d5+ Kf4 b4 c5 h6 b7 d3 b8Q a4 g6 g3 c6 d4 Ke4 d2 f4 d3 g7 a3 Nc3 a2 Nf3 Qd6 Qa4 d1B Qb7 d2 Ne1 Bd7 Ng2 Ra6 f5+ Kf6 c7 e5 Nf4 Ne7 g8N+ Kg5 f6 Bb3 f7 d1R f8R Nd5 Nf6 Rd2 Rd1 Ne3 Ng4 Be8 Rf6 Bc4 Nf2 Nc2 Rb1 a1R Na2 Rh7 Re1 Rd7 Rf1 Rd5 Be3 Qc6 Ba7 Rd8 Bb8 R8d6 Nc3 Ra3 Na2 Na1 Rfc1 Rb3 Rc3 Bb5 Rc5 Bc4 Ra5 Rb6 Ra7 Ra6 Qc8 Re6 Qb7 Rd2+ Nd5 Qb5 Qc8 Qb6 Nf4 Bd3+ Kd5 e4 Qcd7 Re7 Qdb5 Qe6+ Kc5 Bc4 Qb6 Qd7 Qbc6 Re5+ Qd5 Ra5+ Kb6 Ra6+ Kb7 Qb5+ Ka8 Qc5 Rb6 Kf5 Qb7 Qb5 Re6 Qc6 Rf6+
2n1N2Q/1R1KR3/n1nP4/2pRBP2/2Pbr1NN/1bb5/2q1k3/r2nqnrQ b - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 d5 Nf3 dxe4 Bd3 f5 Be2 g3 Ng1 g2 Bg4 fxg4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 b4 Kc4 Ke5 g5 f4 c5 h4 a5 d4 a4 d5 g3 h5 e3 b6 a3 c3 a2 f5 g4 b7 e2 b5 e1N h6 Nd3+ Ke4 e5 h7 Ne7 b6 Be6 Bb2 Bg7 Ne2 g1N Qc1 g2 Qe1 g3 Rh5 Re8 h8R Na6 b8N Nh3 b7 g1R Nd7 g2 b8Q Ndb4 Nf6 Nc8 Nd4 Nc6 R5h7 Re7 Re8 Nf2+ Kf3 Kd3 d6 e4+ Kf4 e3 Nb5 e2 Nc7 Bb3 c4 Nd1 Nd2 Qd7 Ng4 Bc3 Nf3 Re4+ Kg5 Qe6 Nh4 Qe5 Rd7 Qh2 Ree7 Ra7 Rb1 a1N Ne8 Nc2 Rb7 Nce3 Kg6 Nf1 Kf7 Ba5 Bg7 Bc3 Be5 Ra8 Ke6 Ra7 Qf2 e1Q Qf3+ Kd2 Qh3 Ke2 Qa8 Nab8 Rc1 Ra1 Rb1 Na6 Kd7 Rh1 Qb8 g1B Qg2+ Bf2 Rc1 Rg1 Qh1 Bfd4 Rb1 Kd3 Rb2 Qc2 Rb1 Nf2 Rd1+ Ke2 Rd3 Nd1 Qa8 Bf2 Rd5 Bfd4 Ng7 N8a7 Qh8 Nc8 Ne8
2R1Q2K/k1n1p1NP/1N3nrq/2BRR1r1/1q2P1q1/Qb3P2/3b4/nNq1rq2 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 c5 Bg2 cxd4 Nd2 f5 Bb7 f4 Bg2 f3 Nb1 fxg2 Kd2 g5 Kd3 d5 e4 Kd7 b4 Kc7 h4 Kb7 c4 a5 b6 a4 f3 g3 h5 a3 c5 a2 b5 g4 h6 Be6 h7 Nf6 Ba3 Na6 Qe1 Bh6 Qf1 Bd2 Rh2 Qf8 Nh3 g1R Qf2 g2 Ng5 g3 Rh5 Re1 c6+ Kb8 b7 g1Q c7+ Ka7 b8R g2 c8Q Qh6 Qe8 Rg8 Rc8 Rg6 Qe2 Bg8 Ne6 Nc7 Re5 Qf1 Ng7 g1Q Bd6 Qg4 b6+ Kb7 Bb4 Ra5 Bc5 Ka6 b7 Be6 Bb4 Ka7 b8N Rc5 Nd7 Rb5 Kc2 d3+ Kb3 d4+ Rd5 Bg8 Kc4 Bf7 Nb6 Be6 Nc3 Bg8 Rd1 a1N Bc5 Ra5 Kb4 Bf7 Re5 Bb3 Qh2 Bf4 Qf2 d2 Nb1 d3 Qd4 Bg5 Qb2 Be3 Kc3 Bg5 Kd4 Rb5 Rc1 d1Q Rd5 d2 Ke5 Qde2 Rc3 d1Q Rc2 Qg3+ Kf5 Qed2 Re5 Qd6 Rd2 Qc1 Rdd5 Bd2 Re6 Na8 Ree5 Qb8 Ke6 Nc7+ Kf7 Qg4 Kf8 Nh5 Kg8 Nf6+ Kh8 Ra5 Bf2 Rc5 Na8 Qb4 Nb6 Rc6 Bc5 Rg5 Nh5 Nd7 Ng7 Rcg6 Rb8 Nf6 Rbd8 Na6 Rc8 Nc7 Qa3+
b7/K3Qbbn/p2B2r1/R3qr1n/2Q2qQ1/P3PrP1/2NrB2N/nkNr4 b - - 0 1 legal: proof: d4 c5 f4 g5 b4 gxf4 bxc5 e5 Na3 exd4 Nb1 h5 g3 h4 a3 h3 Ra2 Bg7 Be3 Bh6 Bc1 Bf8 Rb2 Qg5 Rb3 Qf5 Rf3 Qf6 Rf2 Qd8 Rg2 hxg2 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 c4 d5 h4 f5 e3 f3 c6 f2 c5 d3 c7 d4 c6 a6+ Kb6 d2 h5 f4 h6 d3 h7 f3 Qe1 d1R Qd2 Qg5 Rh2 Bg7 Qa2 d2 Qf7 Be6 c8N Nd7+ Kc7 b5 Kb7 b4 c7 b3 Qf8 b2 Nh3 g1Q Bg2 Kd3 Qf6 Kc2 Nc3 f1N Na7 b1B c8Q f2 Bd5 Bf7 Bh1 Qe5 Bf3 Nf8 Qe7 Nf6 Qg4 Rg8 h8Q N8h7 Nc6 Raf8 Na2 Nh5 Ka7 Qg2 Be2 Qf3 Bb2 Qff4 Nc1 Bba2 Nd3 Kb1 Nd4 Bad5 Ng1 Ba8 Bc3 Bg6 Rh4 Rf5 Nc2 Bf7 Nf3 Bf8 Qd6 Rg6 Nc1 Bg7 Bd4 Re1 Qhf8 d1R Qde7 Nd2 Nh2 f1R Bc5 Nb3 Bd6 Rf3 Qc8 Na1 Qc4 Rd2 Rh3 Red1 Rh4 N5f6 Rh5 Nf8 Rh8 N8h7 Rc8 Nh5 Rc5 Rff6 Rd5 Rf5 Ra5
1n3r2/b2qq1RK/P1N4n/r1R1pBNb/P1Q1P1r1/nR5N/b3k2r/Q1q5 b - - 0 1 legal: proof: d4 a5 g4 h5 b4 hxg4 bxa5 c5 Nd2 cxd4 Nb1 g3 Bd2 f6 Bg5 fxg5 Qd3 g4 Qd2 Ra6 Qd1 Ra8 Kd2 Kf7 Kd3 Ke6 Ke4 b5 h4 g5 a4 d5+ Kd3 Kf5 c4 Kf4 e4 e5 f3 g2 c5 b4 c6 b3 h5 g3 h6 g4 c7 b2 h7 Qe7 Ra3 Nh6 Rb3 Be6 Na3 b1N Nc4 Na3 c8R Ra7 Kd2 d3 Rc5 d4 Qa1 Ra8 Kd1 d2 Ke2 Rg8 h8N d1B+ Kd3 Ra6 Nf7 Ra7 Kd2 d3 Ng5 Bf7 Kc3 d2 Kd3 Bh5 Rh3 Bc2+ Ke2 Bb1 Rb7 d1R a6 Rd5 Rb3 Ba2 Na5 Rh8 Nc6 Ra8 Rcc3 Ra5 Rc5 Rh7 Rb7 Qf6 Rg7 Qe7 Ke1 Ke3 f4 Qd7 f5 Bd6 f6 Qe7 Rd5 Bc5 f7 Ba7 f8Q Rh8 Qf7 Rf8 N1f3 g1R Rc5 g2 Qc4 g3 Kd1 Kf2 Kd2 Rh1 Ng1 Rh2 Be2 Rf4 Bg4 Rf8 Kd3 Rf4 Bf5 Rg4 Ne2 g1Q Nf4 g2 Re3 Qc1 Nfh3+ Kf1 Rg3 Qb1+ Ke3+ Ke1 Kf3 g1Q Rg2 Qc1 Rb2 Qd4 Rbb5 Qdd7 Rb3 Rf4+ Kg3 Rff2 Kh4 Rfg2 Qf7 Ke2 Qg8 Bf3 Qc8 Rg4+ Kh5 Rf4+ Kg6 Bh5+ Kh7 Rg4 Nb4 Nc6 Qg8 Rf8 Qd5 Nb8 Nc6 Qee6 Qdd4 Qee7 Qc4+
1rB3q1/pnN2bB1/1qkq1R2/b3Q1r1/P7/2Nb1n2/P1NP2bn/K1B1rQ2 b - - 0 1 illegal: No proof kernel
q1R1r3/N3b1RR/p3NQ1Q/1nq1k3/qn3nBP/P1b1P3/1rr1b3/K1Qb4 b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 Bd2 h6 Ba5 hxg5 Bc7 g4 Be5 Kf7 Bf6 Ke8 Bh4 Qe7 Bg3 fxg3 Qc1 Qh4 Qd1 Qd8 Kd2 Ke7 Kc1 Kf6 Kb2 g5 f4 b5 c4 d5 h4 d3 f5 d4 c6 b4 c7 g2 c5 a6 c6 g3 a3 b3 Qd2 g4 Rh3 Nh6 Qd1 d2 Qc1 d1B Qc5 d3 Qf2 d2 Qf4 Be7 Qg5+ Ke5 f6+ Nf5 f7 Re8 Qg8 Nd6 f8Q Nb5 Rh2 Ra7 Nh3 g1N Nf4 g2 Rh3 g3 Qgf7 Bg4 c8Q Rc7 Rh2 Nh3 Nc3 g1B Rb1 g2 Ka1 Bd4 Ne6 g1Q Rg2 Nf4 Qh6 Bf3 Rg7 b2+ Ka2 Qg5 e3 Bfe2 Bh3 Qf5 Rc1 b1R Bg4 Rb2+ Ka1 Qd5 Rh7 Qfe4 Rc2 Qc5 Rg7 Rd7 c7 Qa8 Qf8 Nc6 Rc1 Nb4 Qfh8 Nd6 Nb5 Bc3 Na7 Nb5 Qf8 Rd6 Qf7 Rc6 Qfg6 Bb3 Rh7 d1Q Qf6+ Kd6 Rg7 Qdd4 Rg1 Bbd1 Rh7 Kd5 Bf5 Qe4 Rgg7 Qc2 Bg4 Qa4 Qb7 Kd6 c8R Rc7 Qh1 Rc6 Qf7 Ke5 Qf8 Rd6 Qg1 Rdd2 Qe1 Rdc2 Qff6+ Kd5 Qd2+ Ke4 Qc1 Kd5 Qf7 Ke5 Qff6+
1n2r2b/4pb1K/2BQq3/B2r2N1/n2qr1P1/bB2PP2/1r1QqR1k/Rn1Q4 b - - 0 1 illegal: No possible last move
2b2r1N/qQ4K1/1b6/BBN2r2/p1b3bQ/R1r1b1n1/PPQ1q1P1/B1kn1b2 b - - 0 1 illegal: Other
3r2bk/b2p3B/1b3Q1b/bP3KnR/nbQP4/1Nq2P2/2R1q3/BrBr1Q2 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 a4 h5 Nc3 hxg4 Nd5 fxe4 axb5 Na6 b6 Nb8 b5 Na6 Nb4 cxb4 Qf3 Nb8 Qe2 Kf7 Qd1 Ke8 Ke2 Kf7 Ke3 e5 h4 a5 c4 g5 h5 Kg7 b7 b3 c5 a4 c6 a3 c7 g3 d3 g2 f3 b2 Nh3 g1B+ Nf2 b1R Qb3 a2 Qd1 g4 Rh3 g3 Qe2 g2 Qd1 Nh6 Qe1 Qe8 Ba3 Nf7 Bc1 Ng5 Qe2 Na6 b8Q Bb7 c8Q Nc5 Qd2 Bd5 Rh2 Na4 Qcb7 Bg8 Qd6 Rd8 Qc8 Kh7 Qcc6 Bh6 Qf6 Qe6 Qe1 Qc4 Ke2 e3 Ne4 Qe6 Nc5 e4 Rh4 Bf2 Rh1 g1B Nb3 Qe5 Qc4 Qh2 Kd1 e2+ Kc2 e3 Bh3 Qe5 Qf1 e1B Rh2 e2 Be6 Bf8 h6 Bb6 Rh5 Beb4 Bf7 e1B Bd5 Bf7 Be4+ Kg8 Bg6 Bed2 Bf5 Qe2 Be4 B4a5 Bg6 Bfb4 h7+ Kf8 Be4 Ba7 Bg6 Bgb6 Be4 Rg8 h8B Rg7 Bh7 Rg6 Qfe6 Bg8 Bhb2 Rh6 d4 Kg7 Qd6 Kh8 Qf8 Qg2 Kd3 Re6 Bc3 Re1 Qf4 Rd1 Qh4 Nf7 Ke4 Bh6 Kf5 Qe2 Qe7 Ng5 Qee6 Rb2 Rb1 a1Q Qd6 Rc2 Rb2 Rcd2 Ra2 Rb2 Qde6 Rb1 Rc2 Qa3 Ba1 Qb2 Qec6 Qc3 Qf6+
R1q1nK2/1Npk4/3Q1B2/1nqr1nB1/1nP1n1Rr/1PQb2bB/Pn6/q2R4 b - - 0 1 illegal: No possible last move, all moves rejected
1Nq1q3/1q1q3q/1B4PN/N4pbK/5P2/1brnnQP1/1kQ5/1brBRb1B b - - 0 1 illegal: No possible last move, all moves rejected
NN2k1n1/1K2prBb/1b1bP1q1/2b1qR2/4Q1r1/3Pb2N/1R1RQP2/n3qq2 b - - 0 1 legal: proof: c4 b5 g4 d5 a4 dxc4 axb5 h5 g5 h4 g6 h3 Bg2 hxg2 Na3 fxg6 Nb1 g5 Ra5 g4 Ra4 Nd7 Ra1 Nb8 b4 a5 e4 g5 Ke2 c5 Ke3 c3 h4 c2 b6 g3 b7 a4 e5 a3 Ke4 a2 h5 c4 d3 c3 b5 g4 h6 Ra4+ Ke3 Nc6 b8Q Na5 b6 Bf5 e6 Bg7 b7 Bh7 Nf3 g1Q Ne5 g2 Nc6 g3 Qa8 Nb3 b8R Be5 Na3 Qe1+ Qe2 g1Q Nb5 g2 Bb2 Rg4 Rd1 a1B Rd2 c1B Rh5 c2 Rf5 Bd6 Bg7 Qgf1 Qa4 g1Q Qe4 Bae5 Rb6 Bda3 Nb8 Bed6 Rb7 Na1 Kd4 Qh2 Kd5 Qe5+ Kc6 Bac5 Rb6 Bb2 Kb7 c1B Qc6+ Qd7+ Nc7+ Kd8 Qg2 Bbd4 Rbb2 Qe8 Na8 Qg6 Qh1 Ke8 Qhe4 Nf6 Kc6 Rf8 Kb7 Bg8 h7 Rf7 h8N Bh7 Qg2 Ng8 Qge4 Qh5 Ng6 Qh6 Rdc2 Bce3 Nf4 Qg6 Rd2 Bb6 Nh3 B4c5 Qd4 Bbc7 Qd5 B7b6 Qe4
1r2N3/r1QK1N1b/4pbq1/3nP3/BP1r1b2/RPBQ1r2/B3n1k1/N1b2q1n b - - 0 1 legal: proof: g4 c5 d4 cxd4 a3 b5 g5 h5 g6 b4 axb4 h4 Ra5 fxg6 Ra1 g5 Ra3 g4 Rg3 hxg3 Kd2 Kf7 Kd3 Kf6 Kc4 Kf5 Kb5 Ke4 h4 d5 c4 a5 f4 g5 f5 a4 e3 g2 b3 d3 c5 g3 c6 a3 c7 d2 h5 a2 f6 a1B f7 d4 h6 d3 h7 g4 Nf3 g1R Rh5 g2 Rf5 g3 Kb6 Qe8 Be2 Nf6 Ne5 Nd5+ Kc5 Bh6 f8Q Rf1 Ng6 g1Q Nf4 g2 Ne6 Rf3 Qf7 Nc6 Na3 Ra7 Nc2 Qf1 Bb2 g1B Bc3 Bh2 Ng7 B2f4 Rg5 Bh3 c8B e6 Bd7 Nd4 Ba4 Bf5 Qc7 Qg6 Ne8 Rg8 Qb1 d1R h8N d2 Nf7 Rf8 Bc4 Ne2 Kc6 Bb2 Rg2 Bc1 Kd7 Bhg5 Ba6 Bf6 Rg1 Rf2 Bb7 Kf3 e4 Rg8 Rh1 Kg2 e5 Rf3 Na1 Rh8 Qd3 Rf8 Ned6 Rb8 Rh7 Qh5 Rh8 Bh7 Ne8 Qg6 Ba6 Re1 Rg8 d1N Rg7 Nf2 Bb7 Ne3 Be4 Nh1 Rg8 B4g5 Qd6 Rab7 Bb5 Bh6 Ng7 Rc8 Bb1 Bf4 Ba2 Rd1 Rd8 Rd5 Ne8 Rd3 Qd4 Nd5 Qe4 Rd4 Qd3 Ra8 Bc6 Ra6 Ra8 Rab6 Ra3 Ra7 Bb5 Rb8 Ba4
1nq1B2q/1QQ1q2n/bn5k/Qp2q3/1PNB4/Pr1N1B2/b2b2P1/3R1rnK b - - 0 1 legal: proof: c4 e5 f4 exf4 b4 g5 h4 gxh4 a3 d5 cxd5 a5 Ra2 a4 Rb2 Bc5 Rb3 axb3 Rh3 Be7 Rh1 Bf8 Kf2 Ra6 e4 h5 d4 b5 d6 c5 d5 f5 d7+ Kf7 e5 Kg7 e6 f3 e7 c4 e8B c3 d6 b2 Be3 h3 Bd3 c2 Be4 c1Q Bg5 h4 Qa4 f4 Nd2 b1B Bd3 h2 Bc4 h3 Qa5 Qe7 d8Q Ba2 d7 Rf6 Qa4 Ba6 Bf1 Qc8 Ne2 Rf5 Nb1 Nf6 Ng3 Kh7 Nc3 Bh6 Rg1 h1Q Qaa5 h2 Bd3 Rf8 Kf1 f2 Nge4 Rc5 Na4 Rc3 Nac5 Rb3 Ke2 f1N Kf2 f3 Qa4 Ne3 Bc4 Ned5 Nd6 Nb6 Rd1 Kg7 Bh4 Bd2 Be2 Kh7 Kg3 f2+ Nd3 Qe1 Qa5 h1Q Nc4 Kg7 Bg5 Qh8 Be3 Nh7 Kh2 f1N+ Kh1 Nh2+ Bg1 Qg3 Bd4+ Kh6 Bg4 Qgc7 Be2 Qee5 Qe7 Nf3 d8Q Ng1 Qd5 Rf1 Bf3 Qc5 Qc7 Qce7 Qdb7
2n2RN1/pp3Kn1/2rQRQ2/2brqb2/P6q/1P1r4/RBNP3k/2q2nNb b - - 1 2 legal: proof: f4 e5 g4 exf4 c4 h5 Qa4 hxg4 Qc2 d5 cxd5 g3 Qd1 f3 Bg2 fxg2 e4 Kd7 Ke2 Kd6 Ke3 Ke5 a4 f5 h4 c5 d6 g5 d7 c4 b3 c3 h5 c2 h6 g4 h7 f4+ Kd3 f3 Kc4 Kf4 Kd5 f2 Ke6 f1B e5 Nh6 Qe2 Bc5 Qa6 Qh4 Na3 Nc6 Nc4 Ne7 Nb2 Rd8 h8R Nhf5 Rg8 Ng7+ Kf7 Bd3 e6 Be4 Nf3 g1N Qb5 g2 Qb6 Kg3 Rh2 Ne2 Ne5 g1Q Nbd3 Qd4 Ra3 Bh1 Bb2 c1Q Nf3 Qe5 Nde1 Rb8 Rg2+ Kh3 Ra2 g3 Rg1 g2 Qd6 Ng3 Nc2 Nf1 Rf8 Ra8 Ng5+ Kh2 Nh3 Ne3 Rf1 g1R Re1 Rg3 Ng1 Nf1 Re4 Rd3 Re3 Re8 d8Q Rb8 Q8b6 Rd8 Re4 Bd7 Re3 Nc8 e7 Bf5 e8N Ra8 Qf6 R8d5 Qbd6 Ne7 Re4 Rc8 Re1 Rc6 Re4 Qef4 Re6 Qe5 Qg6 Qhg3 Nf6 Nc8 Ng8 Qh4 Qf6
3QQbKb/1r1p1rR1/1P1P1pn1/B3BN1b/r1n4N/4r3/2N1Pk1q/1n3Br1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 b4 e5 Ra3 exf4 Rb3 c5 axb5 Ba6 b6 Bb7 b5 Bc8 Rb4 cxb4 b7 Ke7 Kf2 Ke6 Kf3 Kd5 Kg4 Kd4 Kf5 a5 c4 h5 g4 Rh6 d3 f3 c5 f2 c6 a4 g5 h3 g6 h4 g7 h2 c7 b3 Bb2+ Ke3 d4 a3 d5 a2 d6 a1B Bg2 f1R+ Bf3 h3 Bf6 b2 Na3 Nc6 b8B Na5 Kg5 Bb7 c8Q Nc4 Bg2 Ra4 Bc7 Bf3 Qe1 b1N Qh4 Ne7 Ba5 Qb6 Bb2 Re6 g8N Bh5 Qe8 Rf3 Nh6 Qd4 Qg4 Rf4 Nf3 Qe5+ Qf5 Kf2 Re1 h1R Qd8 h2 Nh4 Nbd2 Nc2 Rf3 Bbc3 Qg3+ Qg4 Ree3 Rg1 Qh3 Qe4 Bb2 Bcb4 Bh8 Bc3 Rf4 Qe6 Rf6 Be5 Rff3 Ra1 Rb1 Qg6 Rbb4 Rg1 h1R Bf1 Qh2 Qe6 Rf6 N6f5 Nb1 Rg3 Rg1 Rg4 Nd5 Qee8 Nf4 Rg3 Rh6 Rg4 Rh7 Rg3 Rg7+ Kh6 f6 Rg6 Re7+ Rg7 Rf7 Kh7 Ng6 Kg8 Ra2 Bb6 Ra7 Bc7 Rb7 Ba5 Ra4 b6
1Q2rb2/P2pQ2q/QR1P3q/1bPn2NB/1R1R4/4B3/pr2k2n/bb3bKn b - - 0 1 illegal: No proof kernel
3qkBb1/1p4Q1/1PPnnR2/n1p1P3/1Qb1Q1N1/6br/1rbq4/Rb1R1NK1 b - - 0 1 illegal: No proof kernel
R2n4/Np2p1R1/1P2P1rQ/P1bQnnnK/7b/2nBb3/Rq2Nk1N/1q5r b - - 1 2 legal: proof: d4 c5 b4 cxd4 g4 a5 b5 f5 Bd2 fxg4 h3 g5 Bc1 d6 Ba3 g3 Bc5 g2 Ba7 g4 Bc5 g3 Bb4 Bg4 hxg4 axb4 e4 Kd7 Ke2 Ke6 Kf3 Ke5 a4 h5 c4 b3 c5 d5 b6 d3 g5 Kd4 g6 h4 Kg4 h3 f4 Ke3 a5 d4 f5 b2 c6 d2 g7 d3 e5 h2 f6 Nh6+ Kh5 Nd7 g8N Kf2 f7 Bg7 f8R+ Nf7+ Kg6 Bf6 e6 Nde5+ Kf5 Qd4 c7 Nd8 c8Q Bh4 Qg4 d1N Ne2 g1B Bg2 d2 Qh5 Nc3 Qc6 d1N Be4 g2 Na3 b1Q Bd3 Ne4 Qd5 Ndc3 Nb5 Ng5 Nf6 Qdb4 Qh7 Q4b2 Qh6 Rg8 Re8 Rg6 Na7 Rc8 Rg8 Rc4 Rg7 Re4 Nc1 Re1 Ng4+ Kg3 Qb3 Ndf7 Rg8 Bc5 Rg7 g1B Ra2 Bge3 Rf1 h1N Ne2+ Kg2 Nh2 Rd1 Rf4 Rc1 Rd4 Kf2 Rd8 Re1 Rc8 Nd8 Qc4 Nd7 Kg4 Ng3 Rb8 Rh1 Qd5 Nf5 Ra8 Ne5+ Kh5
2b5/1k1nrq1p/1n6/QN1Rn1NP/Rq5b/1P1RQ2P/BK1np3/N3rrn1 b - - 0 1 illegal: No proof kernel
b1Qr1r2/4R1Pb/2Bk3Q/QR3bpq/1p1K3b/rq3NPN/3P1n1b/1R2n3 b - - 0 1 illegal: No possible last move, all moves rejected
2qbKbbq/3R4/pq2N3/1nBn1RRQ/2q2p2/3q3r/Q2P1P1P/rQ1B3k b - - 0 1 legal: proof: e4 b5 b4 h5 a4 d5 g4 dxe4 gxh5 bxa4 Nc3 c6 b5 c5 Nd5 Nc6 Nb4 cxb4 Bc4 Nb8 Bd3 Bb7 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 f5 c4 e5+ Ke3 g5 h6 g4 c5+ Kd5 h7 g3 c6 f4+ Ke2 e3 Kf3 e4+ Ke2 g2 c7 b3 b6 a3 b7 a2 Rb1 a1B Nh3 g1Q Qe1 Qg6 Rg1 Ne7 Rb2 Nbc6 b8Q Be6 c8Q Nd4+ Kd1 Nb5 Ke2 Bg8 Qcc7 Qb6 Ng5 Qc8 Ra2 b2 Qc2 b1Q Ra5 Bf6 Ne6 Qb4 Ba3 Qbc4+ Kd1 Qd3 Bc5 e2+ Kc1 e3 Rg5+ Ke4 Qa2 Kf3 Qe5 Qc4+ Kb2 Nd5 Qeb1 e1Q Bd3 e2 Bc2 B6e7 Bd1 Qf1 Qef5 Bd8 Qg6 Qe4 Kb3 Qd3+ Ka4 Qh3 Rf5 Qh6 Qf7 Kg2 Qh5 e1Q Rg5+ Kh1 Rf5 Bf7 Rg5 Qef1 Rf5 Rg8 h8R Rg3 Rh7 Bg8 Rg7 Rh3 Rgg5 Qbc7 Ra6 Qh8 Rd6 Qfe2 Rd7 Qee3 Bb6 Qc1 Ka5 Q8c4 Ka6 Qec5 Kb7 Qd6 Bc5 Qb8+ Kc6 Q1c3 Re7 Qb6+ Kd7 Qc1 Be3 Qc8+ Ke8 Q1c4 Qab3 a6 Bc5 Rb8 Ra7 Rb7 Q3a2 Rg7 Rg2 Rgg3 Rd7 Re3 Rgg5 Re1 Ba4 Rg1 Qbc2 Ra1 Qcb1+ Qc1 Bd1 Qcc3 Rc7 Qcc4 Rd7
Q2n1rrk/K4R1p/4N1r1/n1nq3q/2p2R1P/bNPr4/2P3N1/Q2bB1Rr b - - 0 2 legal: proof: f4 a5 b4 axb4 f5 e5 e3 e4 Ke2 Qf6 Ke1 Qc3 dxc3 g6 Bd3 gxf5 Be2 f4 Bf3 exf3 Kd2 f5 Kd3 Kf7 Kc4 Kg7 Kb5 c5 Kb6 d5 a4 b3 g4 f2 h4 f1R e4 c4 g5 d4 g6 d3 a5 b2 a6 f3 e5 f4 e6 d2 a7 f2 e7 f3 e8R Nd7+ Ka5 b5 Ra3 b4 Rh2 b3 Rh1 Ne7 Ra1 Rg8 Ne2 Nc6+ Kb5 Rg1 Re4 f1N Qe1 d1Q Ra2 f2 Re3 Kh8 Bd2 Nd8 Ra6 Ba3 Rf3 Nc5 Kb6 Bg4 Rf4 Rg3 Nd4 Rd3 Rg1 Qf3 Ra5 Qd5 Ne6 Bd1 Rb5 Rc8 a8Q Rc6+ Ka7 Qh5 Rb7 Rb6 Be3 Nd2 Rbf7 f1Q Bf2 Qg2 Qf1 Qgd5 Be1 Rc6 Nc7 Rf6 Ne6 Rf5 Re7 Rff8 Ref7 Nde4 Nd2 b1R Rfg4 b2 Rgf4 Nd6 Nb3 Re8 Kb6 N6b7 Ka7 Rgf8 g7+ Kg8 Qf2 Na5 Qd2 Ra1 Qc1 b1R Qb2 Ra2 Qa1 Rab2 Nbd4 Rb5 Nb3 Rb6 Bf2 Qd7+ Nc7 Be2 Rg3 Rh1 Be1 Rg6 Rg1 Qdf5 Ne6 Bd1 Rc7 Re7 Rb7 Kf7 g8N Rc7 Nf6 Qd5 Ng4+ Kg8 Ne3 Kh8 Ng2 Rcg7 Rc7 Rgg8 Rcf7
1K2Rb1N/p1NP3R/k3b2r/2b1Pnp1/PRbq3r/3N3b/2n1B3/1Q1qr2Q b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 c5 bxc5 h5 Ba3 hxg4 Bb2 Rh7 Bc1 Rh8 c4 d6 c6 Rh6 c7 Rf6 c5 Rg6 c6 Rh6 Ba3 Rh8 Bc5 dxc5 Kf2 g5 h4 f5 e4 b5 a4 g3+ Kf3 g2 d4 c4 h5 b4 e5 b3 h6 b2 d5 c3 d6 c2 h7 c1R Be2 Be6 c8R Nh6 c7 Kd7 Bb5+ Nc6 Bc4 Nd4+ Kf2 Kc6 Na3 Kb6 Ne2 b1Q Nb5 f3 Ke3 f2 Nf4 f1B Be2 Ka6 Nd3 f4+ Ke4 g1B d7 f3 Ra3 f2 Rb3 Nhf5 Rb4 Nc2 Rh6 Qe7 Re8 Qc5 Rh2 Bh3 c8Q+ Kb6 Qe1 f1B Qb8+ Ka6 Qh4 Re1 Nc7+ Ka5 Qh5 Qd1 Qf3 Qc3 Qh1 Bgc5 Qb7 Rg8 h8N Rg6 Rd4 Rh6 Qb1 Rb8 Rc4 Rb6 Rb4 Rh4+ Nf4 Bg4 Nd3 Bc4 Rh3 Rbh6 Rh2 Bb5 Kd5 Bfh3 Ne6 Bc4+ Kc6 Qa1 Kb7 Qd4 Kb8 Ka6 Rf2 Nfe3 Rf7 Nf5 Rh7 Nd6 Nef4 Bge6 Nd5 Nf5 Nc7+
5b1r/n1Q1n1p1/5b1r/PN2Nk2/2PqqRb1/4QRP1/1Nb3Kp/rbQ3B1 b - - 0 1 illegal: No possible last move
bRKB2rR/2BPbQ1P/pqp5/n3bk2/2P5/Q7/1bb4Q/NBbr2bn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 e4 d5 f5 dxe4 Na3 g6 Nc4 Bb7 Ne5 Ba6 fxg6 Bb7 g5 Bc8 Ng4 hxg4 Ke2 Kd7 Ke3 Ke6 Kf4 f5 h4 a3 b4 g3 c4 a6 d4 a2 h5 e3 g7 e2 h6 e1B h7 g2 b5 Bb7 b6 Nf6 g6 Bc3 Bd3 Nc6 Rb1 a1B Qb3 Bab2 Nf3 g1B Nd2 Na5 Qa3 c6 Nb3 Rg8 Na1 Ne4 d5+ Kf6 d6 Nf2 Rh4 Nh1 Rg4 e6 Rg2 Be7 d7 Rb8 Rf2 Ba8 b7 Qb6 Rf1 Rbe8 b8B Bcd4 Bc7 e5+ Kf3 f4 Ke4 f3 Bg5+ Ke6 Bf6 f2 Bh4 Bec5 Bhd8 Be7 Rfe1 f1B Re3 Rgf8 g8Q+ Rf7 Qh8 Rg8 g7 Bc1 Rb3 Bdb2 Bb1 Rf2 Rf3 Rd2 Rf8 Rd1 Re8 Qc5 Rb8 Qb6 Kf3 e4+ Kg4 e3 Kf4 e2+ Ke4 Rf8 g8Q+ Rf7 Qhg7 e1B Qgg3 Bec3 Qh2 Be5 Qg7 Rf6 Rh8 Rg6 Qf8 Rg8 Qe8 Kf6 Qeh5 Kg7 Kf5 Bd3+ Ke6 Bc2 Qhf3 Kg6 Qff2 Bf8 Qf1 Bfg7 Ke7 Kg5 Qf7 Bf8+ Ke8+ Kg4 Bf6 Kf5 Kd8 Bgd4 Kc8 Bg1 Qe8 Bfc5 Bfd8 Be7 Qf7+
R2r3R/1q5b/RQ2r1qP/1n3N1p/1BQ2b1P/1Q3BP1/K1bpr3/2rkn1n1 b - - 0 1 illegal: Other
2NQ3b/2K1p2N/R2rP1B1/1P1pQ3/3nnN1b/P1k1qnq1/r1b4r/1RQ3b1 b - - 0 1 illegal: No proof kernel
R4r1q/Q4r1B/2P1k3/3qpn1B/3BP2r/bp1N1QnQ/4PKn1/b1b2R1b b - - 0 1 illegal: No proof kernel
4r1R1/PRqk3B/1r2N1r1/2n2Np1/2qp2n1/P1RPN3/rnb1Kb2/q3Q2Q b - - 0 1 legal: proof: f4 a5 g4 c5 b4 e5 bxa5 exf4 Ba3 h5 Bb4 hxg4 Bg2 cxb4 Bh3 Ke7 Bf1 Ke8 h4 d5 c4 b5 e4 f5 h5 b3 e5 g3 e6 f3 a6 b4 a7 f2+ Ke2 f4 h6 f3+ Ke3 b2 c5 b3 h7 g2 e7 Nf6 Rh4 Nbd7 Bd3 f1N+ Kf2 Ne3 Bc2 Nc4 Na3 b1Q Ne2 g1R Rg4 b2 Nd4 Qc7 Ne6 Qc1 Rg2 b1R Qe1 Rb6 Rb1 Nb2 Nc4 g6 Ke3 f2 Ke2 Ng4 Ne3 d4 Bd3 Bh6 a3 Qc4 c6 Nc5 Rg3 Rg2 Rh3 Rg8 h8Q Bf4 Rg3 g5 Qhh1 Rg6 Rh3 Bg3 Rh8+ Kf7 e8N Ke7 Nd6 Bd7 Rg8 Re8 Nd8 Bf5 Ne6 Qb7 c7 Kd7 c8R Qc7 Rb8 Bh4 Rc1 Be4 Rc3 Bf5 Rb7 Rh2 Kf3 f1Q+ Qf2 Qc1 Qfe1 Bf2 Ke2 Be4 Ndf5 Qa1 Ng3 Qb3 Bb1 Bc2 Ngf5 Qc4+ d3 Qb5 Ba2 Qb4 Bd5 Qc4 Be4 Rf6 Nfg7 Bh4+ Bg2 Bb1 Nd5 Nba4 Kd1 Bg3 Be4 Ra2 Bf5 Bf2 Ne3 Bc2+ Ke2 Nb2 Bh7 Rg6 Ngf5
4q1B1/2bqn3/1n2PRpK/nbQ1r1R1/1bPQR1P1/1NN3kp/8/1Q2qrb1 b - - 0 1 illegal: No proof kernel
4Q2R/1n2r2n/q5Q1/1qb3pK/kQB1NP1B/P4NP1/q2pb1N1/rq3nr1 b - - 0 1 legal: proof: d4 f5 e4 h5 exf5 a5 b4 axb4 g3 c5 f3 cxd4 Nd2 h4 Rb1 h3 Rb3 Rh4 Re3 Rh7 Re2 Rh8 Rg2 hxg2 Kf2 e5 h4 d5 c4 Kd7 h5 Kc6 f6 b5 f7 e4 f4 d3 h6 b3 h7 e3+ Kf3 b2 c5 b1Q Rh3 d4 Rh4 e2 Bb2 e1Q Ne2 g1R Rh6+ Qf6 Qc1 b4 Ba1 Kb5 c6 b3 c7 b2 Qc3 Na6 Qc1 Ka4 Nb3 d2 Rh5 d1N Qc2 d3 Ned4 d2 Bc4 Qee6 Qg6 Bc5 f8Q Ne3 a3 Nf1 Nc1 Ra7 Nd3 Qfe5 Rh6 Qa2 Ne1 b1Q Ng2 Nf6 Rh3 Bd7 c8N Bb5 Nd6 Re7 Ne4 Q5f5 Qb8 Rhe8 h8Q Nh7 Qf8 Qc6 Rh5 Qff6 Kg4 Rc8 Be6 Be2+ Nf3 Qcb5 Bc4 Qd6 Bf6 Rc6 Qge8 g6 Bh4 g5 Qh8 Bd4 Qa8 Nf6+ Kh3 Qd3 Be6 Rc1 Qh6 Ra1 Bc4 Qdb1 Qhg6 Be3 Rh8 Nh7 Kg4 Ba7 Ne3 Nc5 Ng2 Nb7 Kh5 Qb6 Qe6 Qa5 Q6g6 Bd4 Qaa6 Bc5 Qaf6 Qa8 Qc3 Qa6 Qb4+
1rBn3b/Rp2q1bR/2Q4P/1PQQ3r/2nP4/1rp2bq1/N2kN1nb/6RK b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 cxd5 e5 b5 exf4 Ba3 Rh5 Bc5 Rh8 Bb4 axb4 Kf2 Kd7 Kg2 Kd6 a4 Kc5 e4 Kd4 h4 g5 e5 c5 d6 f5 h5 f3+ Kh2 c4 d3 Ke3 e6 c3 e7 g3+ Kh3 b3 e8Q+ Ne7 a5 g4+ Kh4 f2 a6 b2 a7 g2 Kg3 f4+ Kh2 f3 d7 g3+ Kh3 Bg7 Qf8 Ng6 Qc2 Nc6 Qf6 Nge5 Qb3 Nc4 Qa4 Qe7 Rh2 Nd8 Qg6 Rb8 Nd2 b1R a8R Rb3 Ne2 g1B Qa3 g2 Qc6 Rh7 Rh1 Bh2 Ra7 g1B d4 Bhe5 Qac5 Bgh2 Bg2 f1Q Rd1 Qf2 Rdg1 Qe1 Bf1 f2 Kg2 Bhg3 Rh4 Bh2 Kh1 Bef6 Bh3 f1N Be6 Qg3 Bh3 Kd3 Be6 Nfe3 Rh3 Rb1 Nb3 Ng2 Nbc1+ Kd2 Na2 Rb3 Bf5 Bh8 Bg4 Bfg7 Rh4 Ne6 d8Q Bd7 Qg8 Nd8 Qgd5 Bf5 Bh3 Be4 Bc8 Bf3 Rf4 Rh6 Rf7 Rg6 h6 Rg5 Qe4 Rh5 Qed5 Be5 Rh7 Bef6 Ra5 Bfg7 Ra7
RnQK2bk/1p1Qr1P1/5q1B/1PP1pn1Q/1b1NB2b/4n2r/2qB4/1bN2r2 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 fxe4 d4 cxd4 h4 g5 hxg5 a5 b5 Qc7 Ra2 Qb6 Rb2 Qd8 Rb4 axb4 Ke2 Kf7 g4 Kg7 c4 h5 f4 e5 c5 d5 f5 h4 g6 h3 g5 b3 a5 d3+ Ke3 b2 a6 h2 a7 d2 Ne2 Qf6 Na3 b1B Nc2 Rh6 Bg2 Ne7 Ncd4 Kg8 g7 Be6 Rg1 h1R Re1 Qg6 f6 Rf1 f7+ Kh7 Bh1 Rh3+ Bf3 Qf6 g6+ Kh6 g8Q Bg7 Qc2 d1Q Qd3 Qc2 Bd2 Bh8 Qd8 Kg7 f8B+ Kg8 Nc1 Nf5+ Ke2 e3 Qd7 Bg7 Be4 Kh8 Rd1 Bh6 Qa3 Bg5 Bh6 Bg8 Re1 Qb2 Qa4 Bh4 Qd1 Rff3 Rh1 Qc2 Rh2 Rf1 Rf2 Rh2 Kf3 e2 Kg4 e1B Rf3 Rh3 Ra3 Na6 Ra5 Re8 a8Q Re7 Qac8 Nb8 Kh5 Qe6 Ra8 Qf6 Nc6 d4 Qg4 d3 Nd4 Qb2 Qg5 Qc2 Kg4 Qf7 Qh5 Qf8 Bdg5 Bb4 Bd2 Bf2 Kg5 Qd8 Bf4 d2 Kf6 d1N Bd2 Nde3 Qg5 Rf7+ Ke6 Bh4 Qh5 Ng7+ Kd6 Qf6+ Kc7 Re7 Kd8 Ngf5 g7+
B6Q/pn2kr2/1bQ3K1/P1npB3/1qqBr3/2Pq3b/1bq1QP2/2RNN2n b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 g4 exd4 a4 hxg4 Bg2 f5 Ra3 f4 Rg3 fxg3 Bh3 Qh4 Bf1 Qd8 Kd2 b5 Kd3 g5 Ke4 b4 Kf5 d3 e4 g2 h4 b3 h5 b2 e5 d2 a5 g3 c6 g4 h6 Bc5 e6 Ke7 c7 Na6 h7 Nh6+ Kg5 Re8 h8B Nf7+ Kh5 Nd6 Kg6 Nb7 Rh5 Bb6 Rh6 Nac5 Nc3 b1Q Qf3 d1Q Ba3 Qb4 Nh3 g1N Qf4 g2 Qe3 g3 Bd3 Ne2 Ng5 g1Q Rh1 g2 Bb2 Qgf1 Bd4 g1B Nf3 Bh2 Be4 Ng3 Ne1 Qfc4 Qe2 d6 Rf1 Nh1 Bg2 Qd2 Nd1 Be5 Bf3 Bd7 c8Q Qdd3+ Be4 Qc7 Qb8 Bg7 Be5 Rf8 Bbd4 Rf7 Qh8 Raf8 Rg1 Rf4 Rf1 R8f5 Bd5 Re4 Bc6 d5 Rg1 Nd8 Ba8 Rf7 Rf1 Ndb7 Rg1 Bh6 c3 Bc1 Rf1 Bb2 Rg1 Qc8 Rf1 Qf8 Rg1 Qa4 Rf1 Qac2 Rg1 Ke8 e7 Bh3 Rf1 Kd7 Rg1 Ke6 e8Q+ Qe7 Qb5 Qf8 Qc6+ Ke7 Qa4 Qe8 Rf1 Qeb5 Rg1 Qbb3 Qc6 Qbb4 Ne3 Rf8 Nf3 Ba1 Rc1 Bb2 Ne1 Rf7 Nd1
2b1Bn1N/b1rq2q1/3b4/pRQ1nr2/QnN1K1P1/P1p5/1R1PkQ2/2r3bN b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 c5 bxc5 g5 Qg4 gxh4 Qf3 Na6 Qd1 Nb8 c4 d6 c6 Bh3 c7 Be6 c5 Bc8 c6 Bg7 Ba3 Bf8 Bc5 dxc5 Ke2 Kf7 Ke3 Ke6 g4 Ke5 a3 b5 f3 h5 Qe1 a5 Ra2 c4 Rh3 b4 Be2 b3 Qf2 b2 Rh2 h3 Nc3 b1Q Qe1 h4 Qf1 Qa1 Qd1 Nh6 Rb2 Nf7 Ra2 Ra7 Rh1 h2 Qf1 h3 Qd1 Qd7 Nb1 Rh5 Rc2 Rf5 Kf2 Kd4 f4 e5 Qe1 e3+ Kf3 Bd6 Qf2 Qb2 Bd1 Kd3 Nc3 e2 Nb5 e1B Ne2 c3 Rf1 h1N Ng3 h2 Rg1 Qb4 Rb2 Qd4 Ba4 Rb7 Qg2 Bf2 Rgb1 Bg1 Qf2 Bb4 Nd6 e4+ Kg2 e3 Kf3 e2 Nc4 e1B Bb5 Rf6 f5 Bd6 Ba4 Qe5 Rb5 Qee7 R1b2 Ne5+ Kf4 Rf8 f6 Qg7 f7 Ra7 Qc5 Nf2 Nh1 Ke2 Qb6 Nd1 Ke4 Ne3 Qc5 Nc2 Qd4 Rg8 f8N Nb4 Ng6 Rf8 Nh8 Bef2 Qb6 Rf5 Qc5 Ba6 c8Q Rc7 Qf8 Bc8 Qd4 Qd8 Qf6 Nbd7 Qh4 Nf8 Qf6 Re7 c7 Qd7 Qc5 Rf7 Qc6 Ba7 Qh4 Ba6 c8Q Bb7 Qe8 Bc8 Qc5 Re7 Nf2 h1R Qg3 Rh2 Nh1 Rhf2 Qh4 Rf1 Qg3 Rc1 Qh4 Rc2 Qhf2+ Kd1 Qf7 Qe8 Rb8 Rd7 Qe7 Rc7 Rb7 Qd8 Be8 Rc1 Qd7 Qde7 Qdc6 Qd7 Qa4+ Rc2 Qh4 Ke2 Rb5 Rc1 Qhf2+
kb1qbnN1/2nP4/2brr1Bp/4BN2/4R1n1/q1N3KP/1pn1PBQ1/2r1Q3 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 g5 a4 gxf4 Na3 e5 Nb1 e4 Ra3 Qf6 Rc3 Qd8 Rf3 exf3 Kf2 Kd7 g4 c5 d4 Kc7 a5 b5 a6 f5 a7 Kb7 d6 b3 d7 h6 h3 b4 g5 c4 g6 c3 d5 b2 g7 b3 d6 c2 Nd2 b1R Ne4 Nf6 g8Q Nh7 Be3 c1Q Qg2 Na6 Ng5 Nc7 Qd4 Qa3 Qh2 b2 Qd2 Rc1 Qg2 Bg7 Qd1 Nf8 Qa4 Be5 Ne4 Rb8 Nc3 Ka8 Bc5 Rb6 Qd1 Rg8 Qd2 Rg6 Qe1 Re6 Rh2 Bb7 Bd4 Bc6 Rh1 Qg5 d8B Be8 d7 Rbd6 Rh2 Qg8 Bh4 Qg5 Qg4 Qd8 Bg2 Kb7 a8N Kb8 Kf1 f2 Nf3 Kb7 Bh1 Kb8 Kg2 f1B+ Kf2 Bg2 Nb6 Kb7 Nc8 Ka8 Nd2 f3 Ne7 Bf4 Nde4 Be5 Ng8 Bg3+ Ke3 f2 Be5 Bf3 Rg2 Bh2 Ng5 f1N+ Kf2 f4 Nge4 Ne3 Ng3 Nc2 Nf5 Bc6 Rg1 f3 Qg2 Bf4 Rf1 Bd2 Kg3 f2 Qd5 Be3 Be4 Ba7 Bd3 Bb8 Qg2 Nd4 Ne3 Nc2 Bg6 Rdd1 Nf5 Rdd6 Rg1 f1N+ Kg4 Nh7 Bf2 Nfe3+ Kg3 Nf8 Rf1 Nb4 Bg1 Nbc2 Rf4 Ng4 Re4 Rb1 Ba7 Rc1 Bf2
1B1qb3/r1kB1pPp/bRb4n/rq1P1N2/qb3R2/1Qn1QKQ1/5PB1/4r3 b - - 0 1 illegal: No possible last move, all moves rejected
B3b3/5Q1N/Qr1RnbpN/1bP4b/p1Rn1nP1/5qb1/P2K2Q1/4Rbrk b - - 0 2 legal: proof: f4 c5 g4 h5 b4 e5 Bb2 exf4 Be5 h4 c4 d6 bxc5 d5 Bd4 dxc4 Bf2 Na6 Bg3 hxg3 Bg2 Nb8 Bh3 Ke7 Bf1 Ke8 h4 Ke7 d4 Ke6 e4 b5 e5 Kd5 h5 Ke4 h6 f5 e6 a5 e7 f3 e8Q+ Be7 h7 a4 d5 g2 d6 f4 d7 c3 Be2 b4 Rh5 c2 Qd2 c1B Bc4 b3 Qc3 f2+ Ke2 f1B+ Kd1 f3 Rh3 b2 Bb5 f2 Kc2 Nh6 Bc4 Nf5 Kd1 Nd4 Qa3 Na6 Rg3 Rb8 Be2 Bf4 Qf7 Bf6 Nh3 g1N Qb4 Qf8 d8Q Rb6 Qbc4 Bd7 Na3 b1B Nc2 Nc7 Ne3 Be8 Nf5 Ne6 Rc3 Bg3 Kd2 Bc2 Bd3+ Kf3 Re1 Kg2 Nh6 Nge2 Ng5 N2f4 Qa6 Kh1 Rc4 Bb1 Be2 Bg6 Qd6 Bh5 Qd5+ Kg1 Qe4 g6 Qc2 Kh1 Bd1 Rg8 h8R Rg7 Nh7 Rb1 Qg8 Rgb7 Qf7 R7b6 Bf3+ Kh2 Rb4 Bfb5 Ba8 f1B Rc4 Rc1 Qg8 Qf7 Qg7 Qb7 Qf7 Qf3 Rf8 Kh1 Rg8 Bed7 Rd8 Bdc6 Rd6 Be8 Re2 Bh3 Re4 Rg1 Re1 Bf1 Qe4 Bh2 Qe2 Bg3 Qg2+
3BrRK1/1bbQ1Qbr/Q7/prNPp3/3qP3/krr2Pb1/1Bn5/1B2N1n1 b - - 0 1 legal: proof: g4 f5 b4 d5 a4 h5 Ra3 h4 Rg3 fxg4 c4 b5 axb5 dxc4 Bb2 hxg3 Ba3 Nc6 Bc1 Nb8 d4 Kd7 Kd2 Kd6 Ke3 c5 Ke4 e5 h4 g5 f3 a5 b6 c3 b7 g2 h5 g3 b5 g4 e3 c2 b6 c4 h6 c3 h7 Nc6 Qe2 Bg7 Na3 Nf6+ Kd3 Nh5 Kc4 Nf4 e4 Nb4 Nh3 g1B Nf2 g2 Nd3 g3 Bb2 c1B Ba1 c2 Nc5 Nh3 b8Q+ Kc6 b7 Bf4 Qd3 c1R+ Nc2 Bge3 Qd1 g1R Qa7 g2 b8B Bg3 Qf7 Bb7 Bd3 Qd6 Ba7 Rae8 Bb6 Re1 Rh2 g1R Bd8 Bg5 Rd2 Re3 Qf1 Rb1 Ne1 Rb3 Bb1 Nc2 Rd3 Rh1 Rc3 Rhf8 h8Q Ng1 Qhh3 Rh8 Rd3 Rh7 Rd1 Rb5 Qg4 Reb3 Qd3 Qc7 Qgd7+ Kb6 Rc1 R1h6 Rd1 Rc6 Kd5 Be7 Rc1 Bd6 Qe2 Reh8 Ke6 Re8+ Be7 Qb8 d5 Qa7 Qc4 Rb8 Bd8+ Bc7+ Ke7 Rc8 Qf8 Re6+ Kf7 Re8 Qf1 Rc3 Kg8 Rb8 Qfh3 Rbb3 Qc8 Kb5 Qhd7+ Bc6 Qa6+ Kb4 Qe6 Bb7 Qd7 Nd4 Rc2 Ka3 Rh2 Nc2 Rh3 Re6 Qff7 Reb6 Rh6 R6b5 Re6 Rc8 Re8 Ra8 Rf8 Qb6 Bh4 Re8 Bd8 Qa7 Ne6 Qf2 Nc5 Qd4 Bb2+
1n6/nb4rP/2P1R1NQ/b3p2K/2R1RbrN/bq2P3/2p3Bk/bQ1q1Qb1 b - - 0 1 illegal: No proof kernel
1Bn2kr1/1BpQR3/B1QnK1nn/1nq5/n2p4/3bP3/PNrP1R2/1q2b2R b - - 0 1 legal: proof: f4 a5 h4 g5 b4 b5 c4 e5 Na3 exf4 hxg5 bxc4 b5 Na6 Nc2 Nb8 Nb4 axb4 Kf2 h5 Kf3 f5 g4 d5 g6 c3 b6 d4 g5 b3 b7 b2 g7 b1N e3 c2 g6 h4 Ba6 h3 Ba3 c1N Bf1 h2 Qa4+ Nc6 b8Q Bd6 Qba7 Ne7 g8B Nd3 g7 Nc5 Qc2 Rh6 Qaa4 Ng6 Qa7 Nce7 Ne2 Ba6 Nc3 Bd3 Bb2 Nc8 Qd1 Na3 Be2 Qg5 Qf1 Na4 Bc4 Nb5 Rg1 h1N Qa6 Ng3 Rh1 Ne4 g8R+ Ke7 Rg7+ Kf8 Bd1 Be5 Bc1 Ned6 Ba3 Qe7 Bc5 Rb8 Kf2 f3 Qh3 f4 Qd7 Bf6 Qac6 Bh4+ Kg1 f2+ Kh2 f1Q Bf3 Rh8 Ba7 Rg8 Nd1 Be1 Nb2 Rb6 Be4 f3 Bb8 f2 Kg3 Qe5+ Kg4 Qc5 Bg2 Qg1 Rgh7 f1N Re7 Ng3 Rd1 Ngf5 Ra1 Bg3 Rf1 Be1 Rf2 Qf1 Kg5 Rb7 Kf6 Nh6 Qa6 Rb6 Bb7 Rc6 Qa8 Qg2 Ke6+ Qf3 Rfh2 Qd1 Qa6 Qb1 Qb6 Nba7 Bca6 Nab5 Rg2 Qh5 Rgh2 Rc2 Qbc6 Qc5 Rf2+
2Kn1r1q/5bB1/4NPQP/1b1Brbnp/1n1nR2n/b1Qp2R1/k6P/1R1B4 b - - 0 1 illegal: No proof kernel
2b3K1/k2p2QP/bNb3Rb/2QN1PNr/8/p2PQnnB/3r1r1R/2rq1r2 b - - 0 1 illegal: No proof kernel
3r1bn1/r4Bkb/PNKNn1R1/Prp2B2/Q4rnB/5Qbp/7P/1n1qQ3 b - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 d5 b3 dxc4 Ra3 e5 b4 a5 bxa5 e4 Rf3 exf3 Kf2 h5 g4 b5 d4 f5 e4 Kf7 g5 c5 d5 c3 a6 h4 a5 b4 d6 h3 e5 b3 e6+ Kg7 e7 c2 e8Q b2 d7 Nc6 g6 Nd4 Nd2 b1N Bd3 Ra7 Qde1 Ne6 Ne4 Bb7 Bd2 c1B Nd6 Be4 Ne2 Bb2 Rg1 Be5 Bc2 Bd3 Nc3 Be4 Kf1 f2 Ke2 f1R Na4 f3+ Ke3 f2 Nb6 Bg3 Rg2 Bd3 Kf3 Rh1 Bg5 f1N Bh4 f4 Rg1 Ne3 Rg2 Qc8 d8Q Ng4 Qa4 Qd7 Qa8 Qd8 Qeb4 Rd1 Qe1 Rd2 Qd5 Bf5 Bd3 Rb2 Bc2 Rb5 Qde4 Kh6 g7 Bh7 Qd5 Qd7 Bf5 Qd8 Ke4 f3 Qb7 f2 Kd5 f1R Kc6 Rf4 Qa8 N8f6 g8B Kg7 Bf7 Ng8 Ndc8 Qd4 Nd6 Qd1 Qe8 Ng5 Q8e4 Ne6 Qf3 N8h6 Nd5 Bf2 Ne4 Be7 Qf1 Rd8 Qg3 Bf8 Qf3 Ng8 Nd6 Be1 Nb6 Bf2 Bg5 Ne3 Qe1 Bh4 Rg4 Bg3 Bh4+ Kh6 Rg5 Ng4 Rh5+ Kg7 Rh6 Qe2 Rf6 Qd1 Rg6+
3q4/1KP1r1R1/1bpR2B1/Pkr1r1B1/2n1B1pQ/1QPn1bn1/3bN1b1/2n2Q2 b - - 0 1 illegal: No proof kernel
q2nB3/1R3BK1/b2pQn2/1NbP4/bpP1kqQn/1n3N2/rP2Br1b/5N2 b - - 0 2 illegal: No proof kernel
BB2Nr2/2p1KRqP/2Qp3b/2r5/NkPPQqr1/n3nB1q/8/b2qr1Q1 b - - 1 2 legal: proof: f4 a5 g4 f5 b4 axb4 Bg2 e5 Bc6 exf4 Ba4 b6 Bc6 Ba6 Bg2 f3 Bf1 f4 a3 Bd3 a4 Bf5 gxf5 Qf6 Ra3 Qg5 Rd3 Qd8 Rd6 h6 Rg6 h5 Rg4 hxg4 Kf2 Ke7 c4 Kd6 e4 Kc5 h4 g5 a5 b5 a6 b3 d3 g3+ Ke1 d6 Kd2 g4 Kc3 b2 h5 g2 f6 g3 f7 f2 h6 f3 h7 b4+ Kb3 Qf6 e5 Qg7 e6 Nh6 a7 Ng4 e7 Nc6 e8Q Ne3 Qe4 Nd4+ Ka4 b3 Nh3 g1B Nf4 g2 Nc3 b1Q Nh5 b2 Be2 f1Q Nf6 f2 Ne8 Nb5 Bf3 Na3 Bd2 Rb8 a8B Rb5 Rh4 Qc1 Rf4 b1Q Qe1 Bh2 Qd1 Qh1 Qg1 f1R Be1 Rg8 Bf2 Re1 Rf5+ Be5 Rf6 Be7 f8Q Qh3 Rf7 Bg5 Qe7 Rf8 Qd7 Rb7 Ka5 Bh6 Ka6 Qb3 Qdc6+ Kb4 Na4 Rb5 Ka7 Rc5 Kb8 Qbd1 Kb7 Ng4 Kc8 Ba1 Kd8 Qf4 Bd4 Ne3 Ke7 Rd5 Ba7 Rc5 Qf1 g1R d4 Rg6 Bb8 Rg4 Qg1
QQ3k2/qp2pq1R/q2R2b1/8/NK1Rr1nP/n2q3Q/BP4P1/bN1rn1n1 b - - 0 1 illegal: No possible last move, all moves rejected
1rB2BQk/Qn1bb3/4p1pr/r3Prn1/2Q1PN1n/2b3N1/5rP1/1K1R2bN b - - 0 1 illegal: No proof kernel
N1QNRBQ1/rn3p2/1nq2q1b/r1rbRPRP/8/2knK2p/bp4QP/8 b - - 0 2 legal: proof: d4 a5 b4 axb4 g3 c5 d5 h5 d6 c4 Bh3 exd6 Bg4 d5 Bf5 d4 Bd3 cxd3 g4 h4 Kd2 Qa5 Ke1 Qh5 gxh5 Kd8 Qd2 Ke7 Qd1 Ke8 Kd2 Ke7 e4 Kd6 f4 Kc5 a4 Kc4 a5 g5 a6 b5 c3 d5 e5 h3 a7 b3 f5 g4 e6 b4 e7 b2 e8R b3 Re1 g3 Nf3 g2 Ref1 g1Q Ra6 Bh6+ Ng5 Ne7 Qf3 Be6 Qg3 Nc8 Re1 Qg2+ Qf2 Nd6 Re3 Nb7 Nh7 Nd7 Ng5 Nb6 Rf1 Rhc8 Ra2 Rc5 Rfe1 Qh1 Kd1 d2 Ke2 d1R Re5 d3+ Ke3 d2 Qg2 Ra5 Re2 Rc8 a8Q Rcc5 Qg8 d4+ Kf3 d3 Ke3 Rg1 Ra1 d1Q Nd2+ Kb5 c4+ Kb4 Re1 b1B Ba3+ Kc3 Re2 b2 Re1 Rc6 c5 Bd5 Nc4 d2 Re8 Rc8 c6 Ba2 c7 Rca8 c8Q R8a7 Bd6 Qa4 Re2 Qc6 Bf8 Rc1 Rb1 Rc2 Rg1 Qf6 Re5 Bg7 Ne6 d1N+ Kf4 Nf2 Nd8 Rc1 R2e4 Rc2 Ke3 Nd3 Re8 Rc1 R4e5 Rc2 Qf2 Bh6+ Rg5 Be6 Qg3 Qc6 Qg2 Bd5 Nd6 Kb4 Nb5+ Rc5 Nc7 Kc3 Na8
4Br2/NBn1kNpR/3nnq2/Q2p1Q2/pbrPr1P1/2q3bq/1B3P2/KN6 b - - 1 2 legal: proof: b4 c5 a4 cxb4 e4 f5 Nf3 fxe4 Nh4 b5 Nf3 b3 Ng1 b4 g3 Ba6 g4 Bb5 axb5 h5 Ra6 h4 Rd6 Na6 Rd3 Nb8 Rg3 hxg3 h4 e5 d4 a5 Kd2 d5 c4 e3+ Kd3 b2 Kc2 b3+ Kc3 e2 h5 e1B+ Nd2 b1Q c5 e4 h6 b2 b6 a4 c6 e3 c7 e2 c8B g2 h7 Qa1 b7 b1Q+ Bb2 Qf6 Nh3 g1N Qc2 Bd6 Ng5 Ke7 Nf7 Bg3 Kd3 Nh3 Bc1 Na6 b8N Nh6 Bb7 Rc8 h8Q Nf5 Qh6 Nd6 Nc6+ Ke6 Rh2 Ng5 Na7 Ke7 Qh5 Ne6 Qf5 Rc7 Rh7 Rf8 Ba3 Qc1 Nb1 Qch6 Qd2 Qh3 Qa5 Bb4 Bc1 e1R Be2 Nec5+ Kc2 Ne6+ Bc4 Re4 Ba3 Bc3 Bb5 Rc4 Be8 Nac7 Nd2 Qe1 Nb1 Bd2+ Kb2 Bb4 Ka1 Qc3+ Bb2
5B2/1b1Pn1B1/1r1n1bQ1/kr3QN1/pp3P1K/P1QRbqn1/2q1p3/1B2Nq2 b - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 h5 g5 c5 bxc5 h4 a3 f6 Ra2 fxg5 Rb2 g4 Rb3 Be6 Rd3 Bc8 Rg3 hxg3 f4 Kd7 d4 Kc7 h4 e5 c4 b5 c6 Kb6 h5 a5 h6 g5 d5 a4 c7 b4 d6 g2 Kf2 g3+ Ke3 g4 d7 Ra5 h7 Bb7 c8Q Ne7 Rh4 Qc7 Qe1 Na6 Nd2 Rb5 c5+ Ka5 c6 Nc5 Rh3 Bg7 Rh6 Bf6 Ke2 e3 Rh3 e4 Ngf3 g1B Ng5 g2 Qe8 g3 Qg6 Rb8 h8B Bf2 Qf5 g1Q Ndf3 g2 Bg7 Qh1 Qc3 Bg1 Ke1 e2 Bb2 Be3 Bf8 g1N Rg3 Qc8 c7 Qg2 Nh4 Qf3 Ng2 Ba8 Qg6 Nb7 Qe5 Nd6 Qef5 Bb7 Bc3 Qd8 c8Q Qc7 Be5 Qc2 Qc3 Nh3 Bd4 Nf2 Be5 Nh1 Rh3 Qh5 Rf3 Ng3 Bd4 Bc1 Kf2 Bd2 Rd3 e1Q+ Kg1 Qa1 Ne1 Qf3 Kh2 e3 Kh3 e2 Bg2 Be3 Kh4 Qf1 Be4 Qf3 Ng2 Qaf1 Ne1 Bc8 Be5 R8b6 Bd4 Bh8 Bdg7 Bb7 Bh6 Bf6 Bhg7 Q3g2 Bd5 Qff3 Ba2 Qgf1 Bb1
1K5Q/nbnqb1r1/Rk2B3/6P1/pqQ2pp1/1rBP1b1N/q4P2/r2N1B1Q b - - 0 1 illegal: No proof kernel
2KNQrq1/1Pbn1p2/r2qR3/n1k3p1/pRr1Q1N1/3bb3/P1B1n1P1/R3Q3 b - - 1 2 legal: proof: d4 g5 c4 e5 dxe5 b5 Be3 bxc4 Bd2 Nh6 Bc1 Ng8 f4 h6 Be3 gxf4 Bf2 Na6 Bh4 Nb8 Bg5 hxg5 Kd2 Ke7 Kc3 c5 h4 a5 b4 d5 e4 f3 b5 a4 b6 f2 h5 Bh3 e6 Kd6 e7 Rh6 e8R Nc6 b7 Bf5 Nd2 Nf6 Ne2 Nd7 Nf3 Na5 e5+ Kc6 e6 Bd6 e7 Bd3 Rb1 Bc7 Nh2 Ra6 Rb2 Rh8 h6 Rf8 h7 Qb8 h8Q d4+ Kd2 Qa8 Ng4 Kd5 Qh7 c3+ Kc1 c4 Qe4+ Kc5 Qe1 c2 Kd2 c1N Rb4 Qc8 Nf4 Qa8 Be2 f1R Bd1 Ne2 Bc2 Rf3 Rg1 Rh3 Rh1 Rh4 Ne6+ Kd6 Nd8 Kc5 Qf2 Qb8 Ra1 c3+ Ke1 Qa8 Qf1 Qb8 Kf2 Qa8 Kf3 Qb8 Bb3 c2 Qe1 c1B Bc2 Be3 Qh7 Bc4 Ke4 d3 Kf5 d2 Qg6 Nb6 Kf6 d1Q Qh7 Bd3 Qe4 Rfh8 Rf8 Qa8 e8Q Nd7+ Ke7 Qb8 Rg8 Qd2 Rg6 Rf8 Rb3 Qb4 Re6 Qd4 Rb4 Qh8 Nh2 Rf4 Ng4 Qg8 Qf3 Rc4 Qe4 Bh2 Nc6 Qe5 Kd8 Qd4 Kc8 Bc7 Nd8 Qf6 Re7 Qd6 Re6
2b2q2/pqP2Np1/1B5N/r1p1nnq1/3N2rQ/2KQ1bB1/R1P2P1b/1r1B2k1 b - - 0 1 illegal: No proof kernel
2qRbN1b/K1pNBpp1/b2QBr2/2P5/q2B4/2rkNP1n/1rn1q1QP/8 b - - 0 2 illegal: Other
3nQ3/1RK1Q3/r1nPpqQ1/1pbPN2p/2R5/4b3/q1B1P1Nq/2rrRbk1 b - - 0 1 legal: proof: g4 a5 h4 g5 b4 axb4 c4 d5 cxd5 f6 Bb2 Ra5 Be5 Ra8 Bf4 gxh4 g5 Na6 g6 Nb8 Bg5 fxg5 f4 Kd7 Kf2 Kd6 Ke3 Kc5 Ke4 b5 Ke5 h5 a4 b3 g7 b2 f5 h3 d3 h2 f6 g4 a5 g3 f7 g2 a6 Nh6 g8R Bh3 a7 e6 Nc3 b1Q Ra4 Qa2 Nf3 g1B Qc2 Be3 Rg7 c6 Rhg1 h1Q Bg2 Qh2+ Rf4 Be7 f8Q Rh7 Bh1 Bf1 d4+ Kc4 Qf6 Bc5 Rb7 Rd7 Qe7 Rd6 Qg6 Nf7+ Kf6 Qf8 Nd1 Nd8+ Ke5 Rd7 Bg2 Rd6 Bh3 Qf7 Bf5 Rd7 Bc2 Qf6+ Ke4 Rd6 Nf2 Kc3 Nh4 Kd2 Ng4 Ke1 Ne5 Rd7 Rfg4 Kf2 Rh1 Bb6 Ng2 c5 Rh4 c4 Rg4 c3 d6 Rc7 d5 Bbc5 Kd3 Rc6 Rc4 Ra6 Ke4 Nbc6 Rg1 Rc8 a8Q Rc7 Qb8 Nf7 Qbe8 Nfd8 Bd1 c2 Rh1 c1R Bc2 Ba7 Kd3 Rd1+ Kc3 Nd4 Kb4 Rc8 Rg1 Bc5+ Kc3 Qg7 Ba4 Ba7 Kb4 Qf6 Rc3 Rcc6 Rb3 Rc2 Rc3 Rcc1 Rc4 Bb6 Bc2 Ba7 Nh4 Bh3 Re1 Bf1 Ng2 Kg1 Bb3 Ra3 Ba4 Bc5+ Ka5 Bb4+ Kb6 Bc5+ Kc7 N4c6 Bb3 Ra6 Bc2
1b6/bBbnN1K1/1kb1PrNp/q6R/5nb1/N1p5/1BPPrp2/BQ4rQ b - - 0 1 legal: proof: b4 d5 a4 b5 e4 g6 f4 g5 h4 gxh4 axb5 e6 f5 exf5 e5 f4 Ra3 Bh3 Re3 Bc8 Re4 dxe4 Kf2 Kd7 g4 f5 g5 c5 b6 Kc6 g6 a5 b7 h3 b5+ Kb6 g7 h6 Qe2 a4 Qd3 a3 Qc3 c4 Qe3+ Bc5 Rh2 a2 Rh1 a1B Qd4 h2 Nc3 f3 Ke3 f4+ Kf2 Ra6 Nh3 Nf6 g8N Nd5 Ne7 Re8 Bg2 Bg4 Bb2 Nd7 b8B Qc7 Nb1 e3+ Kf1 e2+ Kf2 Qa7 Na3 Qa8 Qe3 Bd4 Bd6 Qa7 Bb4 Qa8 B4c3 e1B+ Kf1 f2 Qf3 Bc5 Ke2 f1R Bd4 Bg3 Bdc3 Kb7 b6 Rg1 Bd4 Bd6 Bdc3 Bc7 Bd4 Kb8 b7 Rf6 Bdc3 Ka7 b8Q+ Ka6 Qb3 Bf2 Qa2 Kb6 Qb1 Qa5 e6 Rg8 Be5 Bc5 Bed4 Rg5 Kf2 Re5 Qe4 f3 Kg3 f2 Kh4 Bb8 Nf4 Bc7 Qee1 Re2 Nfg6 Nf4 Bb7 Rg2 Rf1 h1B Qed1 Rg3 Bdc3 Be4 Rh1 Bc6 Rh3 Be3 Qh1 Rg1 Bc1+ Kc5 Nf8 Bb8 Be5 Bc3 Rh2 Bb4 Ba1 c3 Bcb2 Kb6 Rh3 Kc7 Rh2 Bea7 Rh3 Nd5 Rh2 Bd6 Rh3 Bf5 Kh5 Kb6 Rh4 Bdc7 Rh2 Rf7 Rh3 Bg4+ Kg6 Rf4 Rh5 Rf6+ Kg7 Nf4 Nfg6
Nn1Q4/P4b1R/1p3pkp/1nn1P3/1Q1r1bbP/B2B2n1/1K3NqN/2r2Bn1 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 g5 a4 gxf4 Na3 e5 Nb1 e4 Ra3 Qf6 Rc3 Qd8 Rf3 exf3 d4 c5 Kd2 b6 Kc2 b3+ Kb2 h6 h4 f2 e4 f3 g4 c4 g5 Bg4 a5 Bd6 a6 Nf6 g6 Nfd7 a7 f6 g7 Kf7 g8B+ Kg6 Nd2 Nc5 Nh3 Bf4 e5 Rh7 d6 Rc7 Be6 Qg8 d7 Rc8 d8Q c3+ Ka3 b2 d5 c2 d6 b1N+ Kb2 Rc7 d7 Nc3 Qe1 Nb5 Bec4 Rc6 Rh2 Rd6 Rh1 Rd4 Rg1 Qd5 Bfd3+ Qe4 Rg3 f1B Nf2 Bg2 Nf1 Bh3 Nh1 f2 Nh2 f1N Nf2 Bg2 Qa5 Bh1 Rg1 Ng3 Qb4 Bhf3 Bf1 Qe2 Rg2 Bd5 Bd3+ Qe4 Qe7 Bf7 d8N Bh5 Ne6 Bg4 Bc4 Qf3 Qd8 Qc6 Rg1 Qf3 Nc7 Qg2 Be3 c1N Bcd3+ Qe4 Rg2 Nce2 Bc1 Ng1 Nh3 Nba6 Nf2 Rc8 Na8 Rc7 Kc2 Nb8 Ba3 Ne6+ Kb2 Rc1 Nh1 Nc5 Rc2 Bd5 Nf2 Bf7 Rc4 Ncd7 Rc7 Nc5 Bde2 Qg2 Bc4 Bg8 Rh7 Bf7 Bcd3+
2bbn2q/p2Q1rp1/2K1RNQ1/1Qp2NPP/n3N3/PR6/B1b2br1/kn2b3 b - - 1 2 legal: proof: c4 f6 c5 f5 b4 d6 b5 c6 bxc6 dxc5 e4 fxe4 g4 h5 Bb2 h4 Be5 Qb6 Bd6 Qd8 Bg3 hxg3 Ke2 Kf7 Ke3 Ke6 f4 Kd5 d4 b5 h4 e5 a3 g2 f5 b4 c7 b3 g5 b2 f6 Be7 f7 Nf6 f8N Ne8 Ra2 Nd7 Qd3 Nb6 Nh7 Na4 Ne2 g1N Rh3 Nf3 Nd2 b1B Ng3 Bc2 Qb5 Rb8 h5 Rf8 Nf5 Rf7 Rb2 Rb6 Rb3 Re6 Nc4 Nd2 Ncd6 Nb1 Rh2 Bf6 Re2 Ree7 Kf2 e3+ Kf3 Re6 Ne4 Rd6 Re1 e2 Bg2 Qe7 Ke3 Qf8 Bf1 Bd8 Nhf6+ Ke6 Bg2 Qh8 Bh1 Bd1 Kd3 Bc2+ Kc4 Rdd7 Qb4 Rde7 Kb5 Rd7 Kc6 Rd5 Rd1 e1B Qb5 Bf2 Re1 Rdd7 Bf3 Rd5 Be2 Rdd7 Bc4+ Rd5 Neg3 e4 Re2 e3 Nge4 Ba6 Re1 e2 c8Q+ Rd7 Qcb7 Rf7 Q7b6 Bc8 Bd3 Rdd7 d5+ Ke5 d6 Rde7 d7 Re6+ Nfd6 Kd4 Bc4 Re5 Bd5 Rf5 Be6 Rf3 Q6a6 Rg3 Bd5 Rg2 Bc4 Bc7 d8Q Ba5 Qd7 Bd8 Rf1 e1B Bd5 Bh4 Rf5 Bhf2 Re5 Nbc3 Re6 Nb1 Rb2 Rg3 Ba2 Rg2 Nd2 Kc3 Nf5 Bd1 Rb4 Bb3 Qab6 Kb2 Nde4 Ka1 Q6a6 Bd1 Rb3 Rf8 Qf7 Bc2 Qg6 Rf7 Qab7 Nac3 Qc7 Na4 Qd7
K2Q2BQ/1Nb1P3/nb1N1Rrq/2B3np/r3p1NP/PBrb4/2n1p3/3r2k1 b - - 0 1 illegal: No proof kernel
2B1Q1Bn/2B5/3rNP1Q/4nb1r/PpbQq1kp/2b2N1P/r4p1K/r3n1R1 b - - 0 1 illegal: No possible last move, all moves rejected
b1q1R1Bn/2QrN2K/1pB1p2B/n3P3/1P1p1kQ1/3n4/1b2P2r/2RRr1bn b - - 0 2 illegal: No possible last move
3n2br/k2Qnn2/q1p1r2R/2P1p2B/N1Np1rPK/2RP2N1/3R2rQ/3b3b b - - 0 2 legal: proof: e4 f5 b4 a5 f4 axb4 Bb2 g6 Bf6 Bg7 Bg5 Be5 g4 fxe4 f5 Bd6 Be3 Bg3+ hxg3 g5 Bf4 gxf4 Kf2 b5 a4 e5 c4 h5 a5 d5 a6 Kd7 a7 Kc6 d3 Kb6 f6 e3+ Kf3 h4 f7 e2 f8N e1N+ Kf2 h3 g5 h2 g4 d4 g6 f3 Kg3 b3 g7 b4 Qc2 f2 Ra3 b2 Ng6 b3 Nf8 Qd6 Nh7 Be6 Nf8 Nc6 Nc3 b1B Bg2 f1R Be4 b2 Bg6 Nf3 Nge2 Re8 a8R Nge7 g8Q Nd8 Qf7 Ng5 Bh5 Rf4 Kh4 c6 Qg7 Bg8 Ng3 Ngf7 Nd7+ Kb7 Qd2 Bc2 Nb6 b1R Nca4 Bd1 Rc3 Qa3 c5 Rb2 Nc4 Rc2 Rb8+ Ka7 Rb2 Qa2 Qg2 Qa1 Qh3 Rg2 Rd2 Qa3 Re1 h1B Qh2 Nc8 Rf1 Re6 Rg1 Ne7 Rf1 Re4 Rf6 Rf4 Rh6 Qa2 Nab6 Qa6 Na4 Rf1 Qh7 Rf4 Qf5 Rd6 Qc8 Re6 Qd7+
4rNBR/2n2p1R/nNpPb1QK/krP4Q/1R1P1Qq1/1b1nb3/5pn1/4r3 b - - 0 1 legal: proof: f4 a5 g4 g5 b4 axb4 e4 d5 exd5 h6 Bb2 Ra4 Bf6 gxf4 g5 Ra6 g6 Ra8 Bg5 hxg5 Kf2 Kd7 Kf3 e5 Kg4 b5 c4 b3 a4 f3 h4 e4 d4 b4 a5 b2 c5 e3 d6 Kc6+ Kg3 e2 h5 Kb5 a6 b3 g7 g4 Kf4 g3 h6 f2 h7 c6 a7 g2 Rh6 Qg5+ Ke4 Na6 Nd2 b1R Nh3 g1N Nc4 e1N Qc1 b2 Nf4 Ngf3 Ng6 Nd3 Nb6 Rb8 a8Q Ne7 g8Q Ne1 Ra4 Ng2 Rb4+ Ka5 Qf4 Be6 Be2 Bg7 Nf8 Nd5 Rh1 Bf6 Qg6 Nc7 Rh6 Rg8 h8R Re1 R6h7 b1B Qh5 Re8 Qd8 Bg7 Qdf6 Bh6 Qfg6 Bba2 Kf3 Qf5 Bd1 Beb3 Bc2 Qe4+ Kg4 Rb8 Nfd7 Rge8 Nf8 Qe2+ Kf5 Qg4+ Kf6 Bg5+ Kg7 Be6 Bb1 Bab3 Bc2 Bd8 Kh6 Bh4 Nbd7 Rb5 Nb6 Bg5+ Kg7 Bec4 Qff5 R8e7 Qge6 Nb8 Rh6 Re8 Kh7 Bd2 Qf4 Nb2 Bg6 Nba6 Kg7 Qh4 Bh7 Qg4+ Qeg6 Nd3 Bg8 Be3 R6h7 Be6 Kh6
1nr1Qnr1/1b1B1Nbq/4N3/p2r2pk/2p3n1/2n2RQP/1K1bP1P1/1Q2B2N b - - 0 1 illegal: No proof kernel forced: bxLB
3QR2r/k2B1K2/Bp4n1/b5r1/n2rn1N1/pPBqnb1R/P1b1QPp1/5R2 b - - 0 2 legal: proof: g4 f5 c4 d5 e4 fxe4 Nc3 g6 Nce2 g5 h4 gxh4 Ng3 hxg3 cxd5 Be6 Bb5+ Bd7 Bf1 Bc8 Ke2 Kd7 Ke3 e5 d4 c5 g5 Kc7 b3 Kb6 g6 h5 d6 a5 d7 a4 d5 a3 d6 h4 g7 h3 Ne2 h2 Qe1 c4 Nf4 c3 Ne6 c2 Qb4+ Ka7 Be2 b6 Nc7 Na6 Ne6 Nc5 Bh5 Na4 Bf3 Nf6 Bd2 c1R g8B Rc4 Bg2 Rd4 Rhd1 h1B Bh3 Bf3 Bf1 g2 Nc7 Ba6 Nd5 Bd3 Qc4 Bc2 Qd3 Rc8 Qe2 Rc5 Bc3 Ra5 Rd3 Rb5 Kd2 e3+ Kc1 Bh6 Be6 Ne4 Nf6 Bg7 Ng4 Ra5 Qd1 e2 Qd2 e1N Qe2 Qc7 d8R Qc4 Re3 Qd3 d7 Bf8 Re8 Bb4 d8Q Rad5 Bd2 Ba5 Rb1 Nec5 Bc8 e4 Bc3 Rg5 Be6 Qb5 Bc8 Ned3+ Kd2 Ne5+ Rd3 Qd7 Ke3 Qh7 Kf4 e3+ Kg3 Ne4+ Kf4 Qg6 Bd7 Qh7 Qd1 e2 Ra1 e1N Qe2 Rg6 Kf5 Rg5+ Ke6 Ng6 Re3 Qh6 Kf7 Qh3 Qd2 Qg3 Ba6 Qd6 Qe2 Qd5+ Kg7 Qb5 Rb1 Qd3 Kf7 Bd1 Qb2 Nc2 Re7 Bfe2 Rh3 Ne3 Re8 Bf3 Qe2 Bc2 Rf1
1nk1K3/2p4N/R2P1qr1/rQ3P2/nNbR1b2/p1R4N/2P1Br1p/2Qnbn2 b - - 0 1 legal: proof: e4 g5 h4 gxh4 b3 f5 Bb2 fxe4 Bd4 d5 a4 b5 Be3 d4 axb5 dxe3 Ke2 Nd7 g4 h5 f4 e5 d4 a5 f5 h3 b6 a4 d5 a3 d6 h4 g5 Ra5 b4 Ngf6 b7 Ng4 b8R Nh2 b5 Rh6 b6 Ba6+ Ke1 e2 Kf2 e1N Ke3 Bc4 b7 Nd3 g6 Nb2 g7 Na4 g8N Rg6 Ne2 Bh6+ Nf4 Bg5 Nc3 Bh6 Bd3 Nf1+ Kf2 e3+ Kf3 e2 Ke4 e1N Ncd5 Ng2 Nb4 Nge3 Ra8 Bg5 b8Q Bh6 Qb6 Nb8 Qb1 Kd7 Nf6+ Kc8 Nh7 Qf6 Ra6 Bg5 Qb2 Bh6 Re1 Nd1 Qb5 Bg5 Qc1 Bh6 Ne6 Bd2 Neg5 Bf4 Kf3 e4+ Kg4 e3 Kh5 e2 Rg1 Rg7 Rg3 Rg8 Re3 Rg7 Nf7 Rg2 Nfg5 Rf2 Re4 h2 Rd4 h1R Ra8 h3 Ra6 h2 Nh3 Qe7 Kg6 Qe6+ Kg7 Rg1+ Kf8 Qf6+ Ke8 Ndb2 Rd1 e1B Be2 Rg6 R1d3 Nd1 Rc3
BNb5/3R1QK1/Pq3r1r/1p4R1/3pNbrp/1R2P2P/5nq1/1k1nQQrr b - - 0 1 legal: proof: d4 a5 c4 e5 g4 d5 b4 axb4 Be3 f5 cxd5 fxg4 d6 Nf6 d5 Ng8 Bd4 exd4 Kd2 Kd7 Kd3 c5 Ke4 b5 Ke5 h5 a4 g5 f4 b3 h3 b2 e3 c4 f5 h4 a5 g3 f6 c3 f7 g2 a6 c2 Qe2 c1Q Qd3 g4 Qe2 g3 Ra2 Bh6 f8Q Qd2 Qef3 Qb6 Ra4 Nc6+ Kf5 Nge7+ Kf6 Bf4 Nc3 b1R Rb4 Rh6+ Kg7 Ne5 Qf7 Ng4 Ne4 Nf2 Rb3 Re1 Qe2 Rd1 Nf3 g1R Qe1 g2 Bc4 Rf1 Rh2 g1R+ Rg2 Rb8 Rg5 Rg4 Ng3 Rh1 Ne4 Rb7 Bf1 Rc7 Bg2 Rc6 Qe2 Rdg1 Qe1 Kd8 d7 Kc7 d8R Rcf6 d6+ Kc6 d7 Nd5 Qf1 Nc3 Qe1 Ncd1 Ne5+ Kc7 Nc6 Qc2 Nd2 Kd6 Nb8 Qb2 Bd5 Kc5 Qf1 Qc2 Qe1 Qe4 Ba8+ Qd5 Ne4+ Kc4 Nc3 Kd3 Ne4+ Kc2 Rf8 Qa7 d8Q Qb6 Qdc7+ Qc4 Rd8 Qcc6 Rd7 Kc1 Qd8 Kc2 Qdf8 Qcb7 Nc3 Qg2 Ne4 Kc1 Qfb4 Kc2 Qf1 Kc1 Qbe1 Kc2 Rc3+ Kb1 Rb3+
KQ1Q1Rb1/2R1n3/b1Bn1r2/2rb1p1p/p2RbP2/k1N4P/Pqq5/Q2Bb3 b - - 0 3 legal: proof: f4 c5 b4 g5 bxc5 d5 e4 g4 Kf2 dxe4 d3 Qb6 Nd2 Qd8 Ndf3 gxf3 Bd2 e3+ Ke1 exd2+ Kf2 Qb6 Qc1 Qd6 Qd1 Qd8 Ke3 Kd7 Kd4 Kc6+ Ke4 Kb5 c4+ Kb4 g4 f5+ Ke5 a5 d4 h5 h3 b5 d5 f2 c6 a4 c5 Rh6 g5 Na6 c7 Be6 c8R Nc7 d6 Ne8 g6 Ka3 d7 b4 g7 b3 c6 b2 c7 b1B Rb8 Rf6 c8Q Bd5 Bb5 f1B Ba6 Bbe4 Kd4 Qc7 d8Q Nd6 Be2 Ra5 Rc1 Rc5 Bf3 e6 Ne2 Ne7 Nc3 Ba6 g8B Qb7 Qe1 Qb2 Bd1 Qc2 Ra8 Bg7 Qb8 e5+ Ke3 Bh8 Bf7 Qb2 Be8 Bg8 Bc6 Bed5 Bf3 e4 Kd4 e3 Bd1 e2 Rf1 Be4 Rf3 Bg7 Rd3 Bf8 Qg1 e1Q Qg7 Bgd5 Ke5 Qe3 Rd4 Qd3 Qg1 Bh6 Ra7 Nec8 Rf7 Ra5 Be2 Nb5 Rf8 Qdb1 Bb7 Bg5 Nd1 Bh4 Rc7 Ne7 Nc3 Q1c2 Qa1 Be1 Bd1 Bg8 Ba8 Nd6+ Bd5 Rf7 Ke6 Rf6+ Kd7 Rb5 Bc6 Rc5 Ra7 Bed5 Kc7 Be4 Qb7 Bgd5 Kb8 Bg8 Ka8 Bed5 Bf3 d1B Qbb8 Bde2 Rd7 Bed3 Rc7 B3e4 Bd1
q2n1Q2/kNN1pqQQ/nN2rR2/2rbP3/1b1bR2b/4p2p/3Pb1P1/5B1K b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 g5 hxg5 d5 Bb2 dxc4 Bd4 f4 Be3 fxe3 f4 Kd7 a4 Kc6 g6 Kb6 f5 c5 g7 h5 e5 b3 f6 h4 f7 b2 Nc3 b1B Nce2 h3 Nf3 c3 Ra2 c2 Rg1 c1B Nf4 c4 Nh4 c3 Nhg6 c2 Ke2 Bg4+ Ke1 Ra5 Nh4 Be2 Ne6 Rh6 Rh1 Rc5 Nf5 Ba3 Nd6 c1B Qc2 Bcb2 Qh7 Be4 a5+ Ka6 Rg1 b5 Nb7 b4 Rh1 b3 Nc7+ Ka7 a6 Kb6 a7 Na6 a8N+ Ka7 Nb6 Qa8 Rg1 Rg6 Ra1 Nh6 g8Q Bg7 f8Q Bf6 Qgg7 Nf7 Rc1 Rh6 Rc4 Nd8 Rh1 Bc6 Re4 Bd4 Rg1 b2 Rh1 Bd3 Be2 b1Q+ Bd1 Bb4 Rf1 Qb3 Be2 Qf7 Rf2 Rg6 Kf1 Bh4 Kg1 Bd5 Bf1 Re6 Kh1 Be2 Rf6
qQN3nk/3p3n/5q2/Prb1R1p1/b2r1p2/n1P2PQq/1QR2q1B/KN4R1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 d5 h5 gxh5 c4 Bg2 e6 Be4 exd5 Bg6 d4 Bd3 cxd3 Kd2 b5 a4 f5 h4 Kf7 e4 g5 a5 Kg7 c3 b3 e5 b4 f3 b2 e6 b3 e7 Na6 e8Q Nc5 Qe6 Ba6 Qc6 Qf6 Qe1 Ne6 Nh3 Rb8 Qb5 Bc5 Qb6 Bb5 Nf2 Nf8 Ra2 Ba4 Rg1 Nh7 Ne4 Rb7 Kd1 d2 Qg3 Rb8 Qb4 Rb6 Nd6 Rb5 Na3 b1Q Rc2 b2 Nc8 Qa1 Nb1 Qa2 Qa3 Qd5 Qb4 Qa8 h6+ Kg6 h5+ Kf7 Na3 b1N Qb2 Kf8 Ke2 Kf7 Kd3 d1Q+ Bd2 Qc1 Bf4 Qe3+ Kc4 d3 Bc7 Nf8 h7 d2 h6 d1Q Be5 Qf2 Bc7 Nd2+ Kd3 Qa1 Nb1 Nc4 Bf4 Na3 Be5 Qf1+ Kd2 Qh3 Kc1 Qa2 Bd6 Rb4 Bc7 Rd4 Bb8 Ne7 Bd6 Rg8 h8R Nh7 Bb8 Rd8 Re8 Ng8 Re5 Re8 Bc7 Re6 Bb8 Rb6 Bd6 Rb5 Bc7 Nf8 h7 Kg7 h8Q+ Kg6 Qh5+ Kg7 Qe8 Nh7 Qd8 Qc4 Bd6 Qe2 Qc7 Qf2 Qb8 Rbb4 Qb3 Kh8 Kb2 Rb7 Ka1 Rb5 Qb2 Rg4 Re8 Qfh6 Qg2 Qf6 Bh2 Rd4 Re5 f4 Qg3
5Q1N/rR6/1nr1n2Q/4Rr1n/1p1Ppb2/1Pkp1B1R/b1qP2K1/qnB3Q1 b - - 0 2 illegal: Other
5b1n/1pr1R1q1/n2b4/1r4p1/4q2k/1P1p2Nq/KBnP1P1Q/Qn2QNBB b - - 0 2 legal: proof: g4 h5 e4 hxg4 e5 a5 b3 a4 e6 a3 Bh3 fxe6 Bg2 e5 Bf1 e4 c4 d5 Nc3 d4 Rb1 Ra6 Rb2 axb2 a4 Be6 Nb1 Bd5 cxd5 Ra8 h4 Kf7 a5 Kg6 a6 Kh5 a7 e5 d6 c5 d7 c4 Bg2 e3 Nh3 e4 Qc2 c3 Kd1 d3 Re1 g3 Bh1 g2 Rg1 Nh6 Ng5 Rh7 Re1 g1Q Nf3 Nf7 Nh2 Nh8 Nf1 Qc8 d8B Na6 Bc7 Qh3 Bh2 g5 Re2 Rc7 Re1 Re8 a8Q Re5 Qb8 Kg4 h5 Kh4 h6 Rb5 h7 Qgg4+ Re2 Qd7 Bg1 Qf7 Qe8 Qg7 Qe5 Bd6 Qh2 Bf8 Na3 b1N Ng3 Bd6 Bb2 Bf8 Re1 e2+ Kc1 e3 Qd1 c2 Nc4 Bd6 Bf6 Bf8 Kb2 c1B+ Ka2 Bca3 Bb2 Bad6 Nf1 Bc5 Nd6 Bb4 Ne4 Ba3 Qc1 Bad6 Rd1 e1N Neg3 Nc2 Re1 e2 Qd1 Nf7 h8Q+ Qh6 Qc3 Qg7 Qe5 Nh8 Qe8 Nba3 Qa1 Nb1 Rd1 e1Q Qe6 Qe4 Re1 Qb4 Qe2 Qe4 Qd1 Qeh7 Re7 Qe4 Qe1
1QN2nQ1/r2k3p/q1pnQ1r1/n1P2pbq/K1P1b3/B2NP3/3R1R2/qn4R1 b - - 0 1 illegal: No proof kernel
2N1N3/RpP1pb1b/1p6/1PbBK3/NQ5r/n5Rq/qQP1k1rn/b1Q2q2 b - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 c5 dxc5 g5 Bf4 gxh4 Bc7 Nh6 Ba5 Ng8 Bb6 axb6 Ke2 Kf7 Ke3 Ke6 Kf4 h5 g4 d5 b4 h3 a4 d4 f3 Kd5 a5 h4 g5 h2 b5 h3 a6 e3 a7 e2 c6 e1B c7 d3 g6 Kd4 g7 d2 Ra6 Nd7 Ra1 Ngf6 g8N Bf2 Bc4 Ng4 Na3 Nde5 Bd5 Nc4 Nf6 Bf5 Qc1 d1B Ne8 Bh7 Ra2 Rc8 a8Q Bg7 Qa4 Kc3 Qb2+ Kd2 Ne2 Bc5 Rg1 h1Q Rg3 h2 Nc3 Qf1 Qab4 h1Q Na4+ Ke2 Qc1 Ba1 Qbb2 Nce5 Nc4 Qhh3 Ncd6 Nc4 Ra3 Rb8 Nc8 Nh2 Ra2 Na3 Ke5 Rg8 f4 Rg4 f5 Rh4 f6 Ra8 Ned6 Qg8 f7 Rb8 f8Q Qgf7 Na7 Re8 Qfh6 Rg8 Qhf4 Rg7 Ne8 Qg8 Rc3 Rg2 Rg3 Qf7 Nc8 Qg8 Be4 Qb3 Bd5 Qc4 Qc3 Qb3 Qb4 Qc4 Rb2 Qa2 Rb3 Kf2 Q3b2 Bh5 Rbe3 Nb1 Ra3 B5g6 Nc3 Bf7 Ra7 Na3 Na4 Ke2 Rc3 Qh1 Rd3 Qf1 Rg3
q1b2qn1/1Np1rb1K/p2B1R2/2PQNP2/4B2P/k5B1/3pqb1b/1Q2rN1n b - - 0 1 legal: proof: d4 h5 b4 e5 g4 hxg4 a3 exd4 Ra2 f5 a4 b5 Ra3 f4 Rg3 fxg3 axb5 Bd6 Bg2 Bc5 Bf1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 g5 Kf5 a6 Kg6 g2 h4 g3 e4 d3 f4 g4 c4 d2 f5 Nc6 b6 Rh7 b5 Kc5 e5 Kb4 e6 d5 b7 d4 b8Q d3 e7 Nd4 e8N Ne2 b6 Bd6 b7 Re7 Ng7 Qf8 Nf3 g1Q Ne8 g2 Ne5 Qh2 Rg1 g3 Bb2 Bc5 Nd6 Bf2 Bd4 Qh1 Be3 Qh2 Bf4 Qh1 Qc2 d1B Qa2 Ba4 Nd2 Bb3 Qb1 Ka3 Qa7 Bc2 b8B Bb3 Qb7 Ba2 Ba7 Rb8 c5 Bf7+ Kh7 Qh2 Qd5 Rb2 Qd1 Rb1 Nb7 Qh1 Qc2 Re1 Qb1 Qh2 Bb6 Qh1 Ne4 d2 Ba5 Qh2 Bc3 Qh1 Nd3 Qh2 Bd6 Qh1 Bce5 Qh2 Rh1 g1Q Bg2 Qf1 Rg1 Qh1 Bf3 g2 Bh2 Ng3 Ne5 Nh5 Ng3 Qe2 Nf1 Ng3 Ne3 Rd1 Re1 g1B Be4 Qg2 Nf1 Nh1 Bg3 Bh2 Qc2 Ra1 Rb1 Qgf3 Rb6 Re1 Qb1 Re8 Be7 Qg2 Rf6 Qgf3 Bd6 Re7 Bc2 Qfe4 Qc4 Qc6 Qd5 Qce8 Be4 Qc6 Na5 Qa8 Nb7
6kq/Q6p/Rbp3Qr/1n2b1B1/N1PbR2P/1n1rNN2/1pKQ2P1/br2q3 b - - 1 2 illegal: No proof kernel
K3Qn2/3Qq2b/1qpR1Bn1/QRP1r1bP/2p1kp2/1B3nr1/2P1Rn2/N6r b - - 1 2 illegal: No proof kernel
1R3n2/1pP1N3/1NNnrqbP/1P4Q1/qp1kb3/pR6/2nn2r1/RQbK1B2 b - - 0 1 illegal: No proof kernel
K2N1R2/1B4kb/bP2RnN1/1R2q3/1p1p4/1nqP3r/1P2Nnqp/1r3nQQ b - - 1 2 legal: proof: h4 c5 f4 g5 d3 gxh4 a3 e5 Kf2 exf4 Be3 c4 Bd2 c3 a4 cxd2 a5 b5 Ra2 Bd6 Ra3 Bc7 Ra1 Bb6+ axb6 Ke7 Ra3 Kf8 Ra1 Ke8 Kf3 Kf8 Ke4 d5+ Kd4 h5 Kc5 f5 e4 a5 g4 f3 c4 f2 g5 h3 e5 h4 e6 f4 e7+ Kg7 e8Q h2 g6 b4 Nh3 f3 Qc1 d1N Be2 f1N Ra4 f2 Qee3 d4 Bf3 Qf6 Nc3 Nc6 Ng5 h3 Ne2 Ba6 Nf7 Qe5+ Bd5 Rh6 Nd8 Nf6 Qg5 Rc8 Qg1 Rh4 Ra3 a4 Rc3 a3 Qa1 Kh6 g7 a2 g8R Kh7 Qb1 a1Q Rf8 Qa3 Rc2 Qc3 Rc1 Nde3 Re1 Neg4 Qd1 Ra8 Qb1 Na5 Qa1 Qf4 Bb7 Nb3+ Kc6 Kg7 c5 Qg5 Qc1 Ra7 Kc7 Qe5+ Kc8 Rh5 c6 Rh8 c7 Rh7 Qg2 Rh4 Rg1 h1B Kb8 h2 Qb1 Rh3 Qg3 Qg5 c8N Be4 Ne7 Bh7 Ng6 Qgc5 Qf3 Qd5 Qh1 Qe6 Bc8 Rc7 Qd1 Qe5 Ka8 Rc5 Rg3 Ra5 Qg1 Ra1 Bb7 Rb1 Qh1 Nfe3 Rf3 f1Q Rf5 Qg2 Qc1 Nf2 Rh5 Qee4 Rb5 Nf1 Qg5 Qe5 Qg3 Qgd5 Qgg1 Qg2 Rc1 Qd2 Rc6 Qc3 Re6
bb1b3q/1QnB2p1/1N1r2BB/2pP1q1n/Q4PP1/r3N1Rp/1Q1k4/q1b3K1 b - - 0 1 illegal: No proof kernel
Q5B1/2Rr3n/1qnQ2pk/8/2qpP1r1/K1N1R1Pp/P1qnb1qR/b1N4N b - - 0 1 illegal: No proof kernel
3R4/1q1bppb1/n1r2pP1/QPk1r1b1/1n2q1R1/1BR2P1K/1Qb1N3/1N2Qr2 b - - 0 1 illegal: No proof kernel
3k2N1/nR2p3/1Nrn1RQ1/1P1q1p2/P1R2r1n/1Nnqbq1p/b3BPQ1/6K1 b - - 0 1 legal: proof: e4 a5 c4 d5 h4 b5 b4 bxc4 b5 dxe4 Ba3 g5 Bb4 axb4 hxg5 Qd6 Rh5 Qd5 Rh1 Qd8 a4 c5 d4 f5 g4 h5 d5 e3 g6 h4 g7 e2 g5 b3 d6 h3 g6 c3 Qd4 c2 Qc4 c1N Qb4 b2 Na3 b1Q Qf4 c4 Qe5 c3 Nf3 c2 Nc4 Nf6 g8R Ra6 g7 Nc6 Rg1 Rh4 Rg4 Na7 Rg3 Rf4 Qe4 Rc6 Nd4 Be6 Qg2 Ne4 Nb6 Ba2 Rg6 Qd7 Re6 Kd8 Rf6 Qe6 d7 Nd6 Qg6 Qd5 Nb3 Qf3 Rh8 Qd5 g8N Bh6 Na5 Qbb3 Rb1 Qbf3 Rb4 Qdd3 Nb3 Bg5 Rc4 Qdd5 Bg2 Qfd3 Be4 Qf3 Bd3 Bh6 Kd2 e1N Qg2 Ne2 Qg6 Nd4 Be2 Bg5 Rh6 Ng2 Rh8 Nh4 Ke1 Bh6 Kf1 Bg5 Kg1 c1Q+ Bf1 Qa3 Be2 Nc2 Rh6 Ne3 Rh8 Nd1 Rh6 Nc3 Rh8 Kc7 d8Q+ Kb7 Qf8 Kc7 Qfg7 Bh6 Qg2 Kd8 Q7g6 Qdd3 Rh7 Qc5 Rhf7 Qcd5 Rf8+ Kc7 Rb8 Bg5 Rb7+ Kd8 Rf7 Re4 Kf1 Be3 Rf6 Rf4 Kg1
7K/1QRnq1np/2bp2pP/6QN/Q3qB1B/qb1Pr3/r1B3kP/2N1n2q b - - 1 2 legal: proof: e4 c5 a4 f5 b4 fxe4 b5 e6 g3 c4 b6 Be7 Ra2 Bh4 gxh4 axb6 Ra3 b5 Rf3 b4 Rb3 cxb3 Ke2 Kf7 Ke3 Kf6 Kf4 b5 c4 e5+ Kg4 e3 Kh5 Kf5 f4 Ke4 f5 b2 f6 b3 a5 d6 f7 b4 f8B e2 a6 e1Q a7 Be6 c5 Nh6 c6 Qe7 c7 Qe3 c8Q Nd7 Qd8 Nf5 Ne2 Kf3 Bh3 e4 Nbc3 b1B Na2 b2 Qa4 Qa3 Ng3 b3 Bf1 e3 Bd3 e2 Bc2 e1N d3 Kg2 Be3 Bd5 Nc1 Bc6 Bf4 Ba2 Rf1 Qe4 Qg5 b1Q Be7 b2 Bf6 Rae8 a8Q Bb3 Qb7 Qba1 Rf3 b1Q Re3 Qe7 Re5 Qd4 Rc5 Qde4 Rc3 Ne3 Rc5 g6+ Kh6 Ra8 h5 Rhe8 Rc4 Qd8 Kg7 Nf5+ Kf7 Re5 h6 Ng7 Be7 Ra6 Bf6 Qe7+ Kg8 Qd4 Kh8 Re3 Rc3 Qde4 Rc5 Bcd5 Rc7 Bc6 Nce2 Qd1 Nc1 Qdf3 Qga5 Qf1 Bh4 Qh1 Qg5 Qc5 Qd4 Ra2 Qa4 Qa3 Nh5+
4n2b/KNB1q3/2N1Qpn1/QpRq1N2/bB1PPn1r/6kr/1P3p2/1n1Bq3 b - - 0 1 illegal: No proof kernel
1Q1K1Nr1/n3P3/pPQp4/1Q1n1N2/1pnq1N1r/RP5b/nBk3Rb/2b2b2 b - - 0 1 illegal: No proof kernel
QrbKN3/1b4np/1n1nr2N/2k3pP/1R1P1Q2/pBrn2R1/6Pr/1Q1R2q1 b - - 0 2 illegal: No possible last move, all moves rejected
1K2Q1N1/1pN1R2k/1Q3b2/3b1p2/pPBB2nq/1Pnb2PN/r1B1r2n/1b5n b - - 0 1 illegal: No proof kernel
2NN3B/1pn1r1PK/R7/Q2Q2P1/2b2Q1b/1Pbk2pN/b4p1r/1nr1r1qB b - - 0 1 illegal: No proof kernel
2N3RK/1Q5p/Q2rq3/n4k2/Br1p2bp/r3P2P/qr1PQbN1/1r2B1bN b - - 0 1 legal: proof: c4 a5 f4 e5 a4 exf4 b4 b5 Ra2 g5 Ra3 Na6 Rh3 Nc5 Rh4 gxh4 Bb2 Ne4 Bc1 Nc3 Ba3 axb4 Bc1 b3 Bb2 b4 Bc1 Nb5 cxb5 Bb7 Kf2 Ba6 Ke1 Bc8 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kd4 f5 g4 f3 g5 f4 b6 f2 g6 f3 b7 b2 b8Q b3 g7 Qd7 a5 Ne7 g8Q+ Kf5 a6 Qe6 Nc3 b1R a7 b2 h3 c6 Bg2 f1R Ne4 f2 Nf3 Bd7 Qb7 c5+ Ke3 c4 Kd4 c3 Ne1 c2 Rg1 Bh6 Qgc8 Rd8 Bh1 Bf4 Rg8 Bh2 Ng2 Bg1 Qe1 Rb8 a8N Ra1 Nb6 b1R Ba3 c1B Bc5 Ba3 Qcc6 Rb2 Nc8 Bb4 Qd6 Ra3 Qda6 Ba5 Bd6 Bb6+ Bc5 Ba7 Qd1 Re1 Bb6 f1Q+ Nf2 Ng6 Bc5 Ne5 Bb6 Nc4 e3 Na5 Qde2 Reb1 Bc5 Qd1 Bb6 Qc2 Bc5 Rb6 Bd6 Qa2 Bg3 R1b2 Ne1 Rb1 Bg2 R1b2 Nh1 Bf2 Bf1 Rb1 Ng2 R6b2+ Qab6 Bg1 Qba6 Rb7 Be1 Bb8 Qc7 R7b3 Qcb7 Bf2 Qd1 Bbg3 Bb5 Bg1 Ba4 B3f2 Qde2 Rb4+ Kc5 Qe8 Kd6 Qg6+ Ke7 d4 Qaa7 Be6 Qaa6 Rd6 Kf8 Qe8+ Kg7 Bd7 Qbb6 Qee6 Qc6 Be8 Qc7 Bh5 Kh8 Bg4 Qcb7
3k1q2/1b3p1K/1qPb2n1/3b3Q/q1N2Pp1/QBB3nq/p4NP1/QbR2r1N b - - 0 1 legal: proof: h4 e5 a4 b5 b4 bxa4 d4 exd4 Bb2 a5 Nf3 c5 Kd2 g5 Bc1 c4 Ra3 g4 Ke1 Ra6 Rd3 Rg6 Ng1 Rg5 hxg5 cxd3 Kd2 d5 c4 h5 e4 h4 f4 h3 b5 h2 c5 a3 c6 a4 b6 a2 e5 a1Q g6 a3 g7 a2 e6 Bd6 b7 Qb6 Qe1 Nh6 g8N Nd7 b8Q Nf8 Nf6+ Kd8 Qa7 Ng6 Qa3 Bb7 Nh5 Nf5 Nh3 Ng3 Nf2 Re8 Rg1 h1Q Bb2 Qh3 Bc3 Re7 Qe5 Qab2+ Ke1 Q2b4 Nd2 Rd7 Nc4 d2+ Kd1 Q4c5 Kc2 d1B+ Kd3 Bb3 Be2 Re7 Rc1 Re8 Bd1 Qcb4 Kd2 d3 Qf5 d4 e7+ Kc7 Qg5 Bc2 Qh4 Bb1 Bb3 Rd8 e8Q Qa4 Kd1 d2 Qe5 Rd7 Qhf6 Qa8 Qd5 Qf8 Qg7 Kd8 Qh8 Ne4 Ke2 d1B+ Ke1 d3 Ng3 Bdc2 Ngh1 Ng3 Qdh5 Bd1 Kd2 Bf3 Qd4 Bd5 Ke3 Qb4 Qdh8 d2 Kd4 d1Q+ Ke3 Qg1 Kd4 Re7 Qg7 Re1 Qgh8 Nh4 Q8e5 Rf1 Qe1 Be7 Ke5 Bd6+ Kf6 Ng6 Qd1 Qa4 Kg5 Qe7+ Kh6 Qe8 Kh7 Qf8 Nd3 Qb6 Ndf2 Qe7 Qe2 Qe8 Qeb2 Qf8 Qa1
rB4n1/Npbprr1p/2Q3B1/P2RknK1/4rR2/b2Q3P/1P4bQ/R2b1n2 b - - 0 1 illegal: Other
r1b1KB2/5pN1/3pB3/r1Q2P2/1QBP1pkR/2r1Pnp1/4qR1n/Q1b2bn1 b - - 0 2 legal: proof: f4 b5 g4 h5 a4 hxg4 f5 c5 Nc3 e6 Nd5 e5 Nf4 exf4 b4 cxb4 axb5 Bb7 Rb1 Ba6 Ra1 Bc8 Kf2 Ke7 h4 Kf6 c4 a5 d4 g5 e3 g3+ Kf3 g4+ Ke4 g2 Kd5 b3 b6 a4 b7 b2 c5 b1B h5 Kg5 c6 a3 c7 g3 h6 a2 h7 Ra3 Bc4 Nc6 b8Q Nh6 Nf3+ Kg4 Qb4 Ne5 Ng5+ Nf3 Ne6 g1N Ng7 Rc3 Ba3 Qh4 Qc5 Rg8 h8Q Qh5 Rh2 Bd6 Rf2 Bd3 Rc1 Re8 Qf8 a1R Rcc2 Ra2 Qa1 Bf1 Rh2 Be7 Rcf2 Rd8 Bb4 Ra5 Rh1 Ba6 Ba3 Ra8 Bb4 Bc8 Rh4+ Kg5 Ba3 Ng4 Bb4 Ngh2 Ba3 Bf6 Kd6 Be5+ Ke7 Bd6+ Ke8 Qg4 Qb6 Bb4 Qfc5 Qh5 Bc1 Ba3 Bd2 Bc1 Qbd6 Rd3 Bb4 Rc3 Ba3 Nd2 Qdb6 Qe2 Qbb2 Ndf3 Bb4 Bb7+ c8B Ba6 Qe5 Bb7 Bf8 d6 Qc5 Ba6 Qb8 Bb7 B8e6 Bc8 Rh6 Kg4 Qbb4 R5a6 Rh8 Ra5 Rh4+
br6/1pP1Rp2/b1BqrnpQ/1knR1Q2/b2K4/1P1pN3/6P1/RNrQ1n2 b - - 1 2 illegal: Other
rN1q1n2/P1pB2Kp/N1q2N1P/2k2r1R/2n1p1Q1/1Qp2Q2/r1PbRbq1/8 b - - 0 2 legal: proof: f4 f5 g4 a5 b4 d6 e4 fxe4 f5 Na6 f6 Bf5 gxf5 Nb8 Bb2 axb4 Bd4 Kf7 Ba7 Ke8 Bc5 dxc5 Ke2 Kd7 Ke3 Kc6 Kf4 e5+ Kg5 b5 h4 g6 d4 c4 a4 c3 a5 e3 d5+ Kd6 a6 e2 a7 e1B h5 b3 h6 b4 Bh3 b2 Nd2 b1Q Ne2 b3 Nc1 b2 Nd3 Nd7 Nb4 Ne7 f7 Nc6+ f6 Kc5 d6 Na5 Qg4 Nc4 Ra6 Be7 f8Q Bf2 Qf7 Nf8 d7 Qd1 Qg8 b1R Re6 Rb2 Rh2 Qe8 d8N Ra2 Ndc6 Bd6 Nb8 Qc6 Re8 Be7 Q8e6 Bd6 f7 Rg8 Kf6 g5 Qe4 g4 Qg2 Rh8 Kg7 g3 Bg4 Be7 Rh5 Bg5 Qg1 g2 Ne4+ Kb5 Nf6 Kc5 Bh3 Qd8 Qd1 g1Q Qdg4 Bd2 Re7 Nd7 f8Q Qgg2 Qff7 Nf8 Qf5 Nb2 Qb3 Nc4 Qf3 Ra4 Qg6 Ra2 Bd7 Rg8+ Kf7 Rh8 Qgg4 Rg8 Re8 Rg5 Re6 Rf5 Kg7 Bde3 Rd6 e4 Rd2 Bf4 Re2 Bd2 N4a6+
2Qkn1rN/1p2b3/pK1n2p1/NP1q1rP1/N1r3Q1/1p1BP1B1/1Q1R1q1q/3b4 b - - 0 2 illegal: No proof kernel
1N3K2/bnNrN3/2rq4/rQ2pppR/4pbP1/1Q1nPk1q/5R1P/3RBn2 b - - 1 2 illegal: No proof kernel
B2R4/prQpqRp1/2NP1bK1/4pB2/kn1Q2Q1/P1r5/q1BP3b/1bn4n b - - 0 2 illegal: No proof kernel
r1nb3B/1p1N2Q1/bPR3p1/2q2qPP/n3k1p1/1pr1RN2/qR6/1Qr1N2K b - - 1 2 legal: proof: f4 a5 g4 h5 b4 e5 c4 exf4 b5 d5 cxd5 Ne7 g5 Bh3 Qb3 Ng8 Qb4 Bc8 Bh3 axb4 Bg4 hxg4 Kf1 Ke7 Kg2 Kd6 a4 Ke5 e4 f5 d4+ Kd6 h4 c5 b6 b3 a5 c4 e5+ Kd7 a6 g6 d6 Kc6 d5+ Kc5 a7 Kd4 h5 c3 d7 c2 d6 Na6 e6 Qe7 d8Q Bd7 Nd2 Nc5 Rh2 f3+ Kh1 f4 Qc7 f2 Ndf3+ Ke4 Ne1 f1Q Bb2 f3 Rc1 Bb5 d7 f2 d8R Ba6 Rd3 Qe2 Ngf3 Na4 Bf6 Qd6 e7 Qc5 e8N Be7 Rg2 Rc8 a8Q Bd8 Qg7 Ne7 Bb2 Rc6 Rh2 Nc8 Nf6+ Kf4 Nd7 Ke4 Qa7 f1Q+ Ng1 Qd5 Qb8 Nc5 Qc3 Bf6 Qd2 Qff5 Ngf3 Ne7 Qe8 Na4 Qf7 Ra8 Qd1 Nc8 Rf2 Bd8 Bh8 Qd6 Qg7 Qa3 Rb1 Qe3 Rb2 Qa2 Qb1 c1R Rfd2 Qf2 Rd6+ R6c2 R2d3 Q2c5 Rc6 Rc3 Re3+
2bK4/rBN3b1/1kN1q2Q/p2P4/pb1PB2R/P1npq2p/rnQ4Q/4n1B1 b - - 0 1 illegal: No proof kernel
4Kn1Q/1qP2Qp1/bB6/r1Rq1QPN/3p3q/1n3Nnp/3Pp3/kB2N1rb b - - 0 2 illegal: No proof kernel
2R5/3Qnp1q/1p1Qrbpr/1K1N4/nP1k2Pb/1P2B2q/3pB2N/1n3qNQ b - - 0 2 legal: proof: f4 c5 g4 h5 d4 cxd4 f5 b6 f6 Ba6 b3 Bc4 b4 Bb3 axb3 h4 Ra5 exf6 Rc5 f5 Rc3 f4 Rg3 hxg3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 d5+ Kb5 a5 c4 g6 h4 f3 c5 f2 h5 g2 h6 d3 h7 d4 c6 a4 c7 d2 c8N a3 Bb2 a2 Nh3 a1B Nc3 g1Q Qe1 d1N Nd5 Na6 Be2 f1Q Bc1 d3 Qd2 Kd4 e5 Ne7 e6 Nc5 Nd6 Qgg2 Nc4 Na4 Ng1 Qh3 Nce3 Bh6 Rh2 Bg5 Rh1 Re8 h8Q+ Bf6 Qh6 Bh4 Qh7 Rh8 Rh2 Qg8 Qh6 Qe1 Nf1 Qh7 Rh1 Rae8 Nh2 Qef1 Qh5 Ndb2 Qd1 Nc4 Be3+ Ke4 Qh6 Baf6 Qf8 d2 Qe1 Nf5 Qd6 Ne7 Qd1 Ng8 e7 Na3+ Ka6 Nb1 Kb5 Rb8 e8Q+ Ne7 Qed7 Rbe8 Ngf3 Qg8 Rg1 Rh6 Rg3 Qh7 Ng1 Nc6 Qc1 Re6 Rf3 Ne7 Qcc6 Qfg2 Rf1 Qgf3 Rc1 Qf5 Qa8 Qff1 Rc8 Qff3 Qac6 Qf4 Qc1 Qf2 Ngf3 Qfg2 Qh1 Qg1 Bf4 Qgf1 Ng1+ Kd4 Be3+
2Br1B2/2pP1nK1/n3b3/1qP1BQ2/P1QrpR1k/Nn1qR3/1b1ppq2/3Q4 b - - 0 1 illegal: No proof kernel
2k3br/1q5P/nRpN1ppK/BrP1qp1R/2B4n/5QP1/Q3bQ2/1q1R2r1 b - - 0 2 legal: proof: d4 a5 f4 c6 b4 axb4 f5 e6 d5 exf5 d6 Be7 Kd2 Bh4 Nc3 h5 Ne4 Bg3 Nf2 Bf4+ Ke1 h4 Ne4 Be5 Ng3 Bf4 Nh5 Be5 g3 h3 Nf4 Bf6 Ng2 hxg2 Bd2 Bd4 Be3 Bb6 Bc1 Bc7 dxc7 Rh4 Nf3 Rh7 Ng1 Rh8 Kd2 b5 Ke3 d5 Kf4 Kd7 c4 d4 a4 g6 h4 d3 e4 d2 a5 b3 a6 b2 c5 b1R h5 b4 e5 b3 a7 b2 h6 Rh7 Nf3 g1Q Bc4 Qe7 Nd4 Rh8 h7 Na6 Qf3 d1B Rh5 Nf6 Kg5 Qe1 Bd2 Be2 Ba5 Rb8 a8Q Rb5 Kh6 Nd5 Qf2 f6 e6+ Ke8 Qf3 Nf4 Qa7 Qd7 e7 Ng2 Qa8 Nh4 Qf2 Rb4 Nb5 Qc3 Qa7 Rg1 Rd1 b1Q Qa8 Qe5 Qf3 Qdd3 Nd6+ Kd7 e8R Rb5 Rf8 Bb7 Rb8 Bc8 Rb6 Qdb3 Qb8 Ke7 Qf2 Be6 c8Q Bg8 Qa8 Q3b2 Qcb8 Kd7 Qf3 Qe7 Qf2 Qbe5 Qe8+ Kc7 Qf7 Qd7 Qd5 Qc8 Qdf3 Qb7 Qf8 Kd7 Qf7+ Kd8 Q7d5 Kc7 Qd2 Kd7 Qa2 Kd8 Ne8+ Kc8 Nd6+
4n3/R1R1pp2/pnB5/rn1q1r1P/Q2Q1Pb1/kBqr1B2/2RpP1K1/2b4N b - - 0 2 legal: proof: d4 g5 a4 c5 f3 cxd4 Na3 b5 axb5 g4 Nb1 g3 Be3 h5 Bf2 gxf2+ Kd2 Rh6 g4 Rh8 g5 Rh6 Nc3 Na6 Nd5 Nb8 Ne3 Rh8 Ng4 hxg4 c4 d5 h4 Kd7 b4 Kd6 c5+ Ke6 h5 d3 Ke3 g3 c6 Kd6 f4 d4+ Kf3 g2 b6 d2 c7 d3 b5 Kc5 b7 Kb4 b6 Qe8 g6 Rh6 g7 Nd7 b8Q Rd6 b7 Ngf6 g8B Nb6 Nh3 g1R Bh7 Qd8 Be4 Rg5 Bg2 f1Q+ Nf2 Ne8 Bc6 Bg7 Ra6 Bh3 c8B Rf5 Be6 Bb2 Qc8 Bc1 b8R Qe1 Bb3 Bg4+ Kg3 Rd4 Bgf3 Qd7 Ra2 Qd5 Rc2 Ka3 Rh3 a6 Qc7 Ra4 Kg2 Ra5 Rb7 Rd8 Nh1 Rd6 Ra7 Rd8 Qe5 Rd7 Qc3 Rd6 Rb2 Rd8 Qdc2 d1N Qd4 Nc3 Rg3 Nb5 Qcc4 Qc3 Rc2 d2 Rh3 Rf6 Rg3 Bc8 Rg6 Bg4 Rh6 Rf5 Rd6 Qe6 Rdd7 Qe5 Rdc7 Rd6 Qe4 Rd3 Qed4 Qd5 Qa4+
3qQ3/rp2b2K/2B1Q2n/p6R/1P1Pk2q/2pbNnRp/1PB1n3/1qR3Br b - - 0 1 illegal: No possible last move
1bbB4/2nqkq1r/2q1pp1p/5R2/2pQrBP1/3N1QR1/2rPP3/n2R2KB b - - 0 1 illegal: No possible last move
k4Kn1/b1p1r3/2b1b3/1r1p1B2/2NN1p2/1BPP1bp1/RbnPQ2Q/q3Q2B b - - 0 2 illegal: No proof kernel
4rbbN/3B1bk1/K1RN2p1/pN3P1Q/n1rq4/p4P2/Q1pQbBPb/5n2 b - - 0 1 illegal: No proof kernel
3b3B/1PNPrR1k/Q3b3/1npBN2q/B2pp3/Nr1P1br1/3pnQ2/4bK2 b - - 0 1 illegal: No proof kernel
3R1b2/p4r2/B3qk1p/1Q6/bPbpQR1P/2P3Nn/Q1p2r2/nrRr2NK b - - 0 1 illegal: No proof kernel
1rbq2Q1/2B1p3/2Q2nnb/1p1pP2N/1NP2p2/K1P2b1R/nn5r/N1BBk3 b - - 0 1 legal: proof: b4 c5 a4 g5 f4 a5 g4 axb4 d3 c4 dxc4 gxf4 g5 h5 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 Kd2 f5 e4 Kf7 h4 Kg6 c3 Kh5 Kc2 d5 Kb2 b5 g6 b3 a5 f3 a6 f2 a7 f4 g7 Na6 Ne2 g3 Ka3 Kg4 h5 Kf3 h6 b2 h7 g2 Qd4 g1N Ng3 Nb4 Nh5 Rb8 a8N Na2 Qb6 Nf6 g8Q Bh6 Bd3 f1N Qc6 Kf2 Bc2 Ke2 Bd1+ Ke1 Nd2 b1B Nc7 Ne3 Rh3 Nf3 Na6 Ne5 Nb4 Ng6 Nb3 Bd3 Na1 Be2 Qge6 Bf3 Qg4 Rf8 h8B Rf7 Qge6 Rg7 Qg8 Rh7 Ba4 Nd1 Bg7 Ng4 Be5 Nb2 Bc7 Nf6 e5 Bf8 Ng7 Rh4 Nh5 Bh6 Rg3 Rh1 Bd1 Rh2 Rh3
1B1n1RB1/k1pp4/3Q4/1pn4n/b1r2R1p/1P2RK1Q/bqP1N2P/rn1b1B2 b - - 2 3 legal: proof: d4 e5 e4 exd4 a4 b5 a5 f6 Bh6 Bc5 Bc1 Bb6 axb6 Ke7 Qd2 Kf8 Qd1 Ke8 f4 Ba6 e5 Bc8 e6 Kf8 Na3 Ke8 Nc4 g5 Ne5 fxe5 f5 Nf6 Be3 Ng8 Bf4 gxf4 Ke2 a5 g4 h5 g5 e4 f6 e3 g6 d3+ Kf3 d2 e7 e2 g7 e1N+ Kf2 f3 Ke3 a4 Rc1 a3 Bh3 a2 Kf2 a1N Bf5 Bb7 Bh3 Nc6 Rb1 Nd3+ Kg3 f2 Qc1 f1B Ne2 d1B Rg1 Nb3 Bg2 Nd2 Rh1 Ra1 Bd5 Nc5 Be6 h4+ Kg4 Rh5 Bc4 Qa8 Rg1 Qa2 Rg3 Nd8 Re3 Bd5 Bd3 Bb3 b7 Ba4 Kf4 Kf7 e8R Rd5 R8e4 Rd4 Kg4 Bg2 Rf4 Bd5 Bc4 Re4 Bd3 Ke6 f7 Kd6 f8Q+ Kc6 Qe7 Kb6 Qd6+ Ka7 Bc4 Ndb3 Kf3 Nf6 g8B Qa3 Qd2 Nh5 Qd3 Bf7 Rc1 Rd4 Qf5 Be6 Bd3 Rc4 Qh3 Ne4 Rb1 Nbc5 Rf8 Nc3 Rc1 Rd4 Rb1 Ba2 b3 Re4 Kg2 Rf4 Ng3 Bg4 Rf1 Re4 R1f4 Qb2 Bf1 Bd1 Ne2 Nb1 Kf3 Rc4 b8B+
1Q2K2B/pb2P3/1rnR2R1/PN2Rp2/k1pnr1qr/2QQ3P/3np2b/4n1N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 bxc4 e4 exf4 e5 d6 Bd3 d5 Be4 dxe4 Kf2 Kd7 d4 Kc6 a4 f5 b4 g5 a5 Kb5 e6 c5 h6 e3+ Kf3 c3 h3 e2 h7 c4 d5 c2 d6 Ne7 d7 Nbc6 Be3 c1R Ra3 Bb7 Bd4 Qb6 Re3 Re8 Bc3 Qd4 Qd3 Ka4 Na3 Rb1 d8R Rb3 b5 g4+ Kg2 g3 Kf3 g2 b6 Bg7 Nb5 Be5 Rh2 Bc7 Rd6 Qg7 Re5 Qg4+ Kf2 f3 Ke3 f2 Bd4 Qh5 Kf4 f1N Bb2 Qf3+ Kg5 Nd2 Kf6 Qg4 Kf7 Nd4 Rh1 Nec6 e7 Reg8 Bc3 Rg5 Ba1 Rh5 Bb2 Rh4 Rh2 Rg8 h8Q Rg6 Ke8 Re6 Nf3 g1N Rg2 Qf4 Rg6 Qg4 Red5 Re4 Re5 Ba6 b7 Rb4 b8Q Bb7 Ng5 Ngf3 Qf6 Ne1 Nf3 Rb3 Ng1 Rb4 Qg5 Rb3 Qge3 Rb4 Qc3 Rb3 Qed3 Rb4 Na3 Rb6 Nb5 Nb4 Rc5 N4b3 Qcd4 Qg2 Rd7 Bh2 Rdd6 Qg4 Ba1 Nc6 Qb2 Ndf3 Qc1 Nfd2 Bh8 Nbd4 Re5 Ne6 Qb2 Ned4 Qbc3
2Rn2rq/P1n1k3/1p3bp1/2PNp3/pKn3B1/2nbR2Q/P2r1B2/bR1Q1B2 b - - 0 1 illegal: No proof kernel
1b6/pPk3r1/1n1p1N1N/pqQ2rB1/1bB3p1/5rRb/PQQ2PBb/2K1n3 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g4 hxg4 Nd2 f5 exf5 b6 Rb1 Kf7 Rb3 Ke8 Ra3 Rh6 Ra6 Rh8 Ra5 bxa5 c4 g5 h4 e5 b5 e4 b6 e3 h5 g3 b7 d3 c5 e2 h6 g2 c6 Qb6 f6 Kd8 f7 Rh7 Qc2 Na6 Rh4 Nc5 Ba3 Ne7 Rh1 Kc7 Ngf3 g1B Bc1 Nd5 Nh4 Bh2 Nf5 Bfd6 f8Q Rg7 h7 Qb5 h8Q Nb6 Ne4 Bde5 Kd2 e1B+ Kd1 d2 Bg2 Nd3 Nf6 Beg3 Qfc5 Rb8 Ke2 d1R Nh6 Bb4 Rg1 Ne1+ Ke3 Rd3+ Ke2 Bd2 Kd1 Bb4+ Bd2 Rf3 Kc1 Bh4 Bf4+ d6 Bd2 Bh3 Bf4 g4 Bd2 Rf8 Bg5 Kd8 c7+ Ke7 c8B Kd8 Be6 Rf5 Bc6 Kc7 Bc4 Rf3 Nfg8 R8f7 Rg3 R7f5 Bd2 Bf6 Bg5 Bd8 Be4+ Kd7 Bed5 Bc7 Be4 Bb8 Bed5 Rh7 Qhb2 Rg7 Bc6+ Kc7 Nf6 Rc3 Qe5 Ra3 Bg2 Raf3 Qc5+
QrN1qnQ1/7p/3r1p1P/Np1b1P2/RQ1p2RP/2RK2Bq/n6k/n2nb3 b - - 1 2 legal: proof: h4 c5 d4 cxd4 b4 e5 g3 a5 Bg2 axb4 Be4 Qe7 h5 Qh4 Bd3 e4 gxh4 exd3 Kd2 Ke7 a4 Ke6 e4 Ke5 c4 Kf4 h6 g5 c5 b5 e5 d5 e6 g4 e7 f6 e8Q b3 f3 Kg3 f4 b2 a5 Ne7 a6 Bb7 a7 Ng6 f5 Na6 c6 Nc5 c7 Rb8 c8Q Nb3+ Ke1 d2+ Ke2 d3+ Ke3 Bb4 a8R Nf8 Na3 b1N Nf3 Nc3 Ra4 Na2 Qe1+ Kg2 Ng5 d1Q Rg1+ Kh2 Qg6 d2 Nc4 g3 Na5 g2 Nf7 d4+ Kd3 Qg4 Qg8 d1N Nd6 Bd5 Be3 Qh3 Rc1 Na1 Rc3 Rb6 Qa8 Rb8 Rf1 g1Q Rf4 Qg6 Nc8 Qh5 Rg4 Qe8 Qg7 Rg8 Qh8 Rg7 Qg8 Rd7 Qd2+ Qg2 Qb2 Rd6 Bf2 Qh1 Rc6 Bd2 Qb4 Be1 Rc1 Qg2 Rc3 Qh3+ Bg3+
1n6/Bprr1Q2/Nb3p2/k2Q1P2/1b1RQB2/ppPN1qBb/Pn4q1/1K2b3 b - - 0 2 legal: proof: f4 c5 g4 h5 e4 g5 b4 cxb4 f5 d6 Na3 Qa5 Rb1 Qd5 Rb3 Qa5 Rf3 Qc7 Rf4 Qd8 Bh3 gxf4 g5 d5 Bg4 hxg4 exd5 Rh5 Nb5 Rh7 Na3 Rh8 h4 Kd7 d4 Kc7 Kd2 Kb6 c3 a5 Kc2 e5 d6 f3 d7 f6 g6 e4 h5 g3 d5 f2 h6 f1Q d6 b3+ Kb2 g2 h7 e3 g7 a4 Qd2 e2 Qd5 e1B Kb1 Ne7 g8Q Qf3 Nc2 a3 Qgf7 Ng6 Rh4 Nf4 Nb4 Nd3 Ne2 g1B Rd4 Nb2 Bf4 Be7 Nc1 Qg8 Ncd3 Qgg2 Na6 Rd8 Qe4 Ka5 h8Q Bf8 Qhg8 Be7 Nab4 Ra6 Bg3 Rc6 Na6 Rc7 Bf4 Re8 d8B Be6 d7 Bd5 Bg3 Bb4 Be7 Rf8 Bc5 Rd8 Ba7 Bc4 Qfd5+ Bb5 Qgf7 Be3 Rc4 Bec5 Rd4 Bb6 Ndc5 Bf1 Bf4 Re8 d8B Ree7 Bg3 Red7 Be7 Qgf2 Bed6 Bh3 Bdf4 Q2g2 Nd3+
k2Bb2q/Q1p1r3/1rb1B3/NQ2RKPn/3pp3/1n3p1P/2N2P1N/bQ2q2b b - - 0 1 illegal: No possible last move, all moves rejected
K3Q3/nnr1Np1Q/1B1rp2P/3NP2p/3rp1b1/P1q5/1B1rR1B1/3Nkqb1 b - - 0 1 illegal: No proof kernel
Q2Qb3/2B1Q2P/b1pKN3/1p1prqpB/2qP2r1/r3n3/2R1N1P1/1kr3nB b - - 1 2 illegal: Other
1Bb3qn/bNp1qr2/B6P/1Qb1p3/Qpb2Pr1/1P1nk3/N4p1Q/1N1R3K b - - 0 1 illegal: No proof kernel
R4q2/1bpP1np1/4RQq1/pkR5/1r1b1q1Q/2P1rp1n/K1NP2qQ/2N4B b - - 0 1 illegal: No proof kernel
K1Q2nB1/4q1q1/8/PprBR1nb/1pppr2N/1rP1q1B1/1P4Q1/3kQ1Rn b - - 0 1 illegal: No possible last move, all moves rejected
r2Q2r1/2p4N/3n4/1pPBRN2/r3pK1n/r1rNPbpB/4BQP1/qn1k4 b - - 2 3 legal: proof: c4 f5 b4 a5 Na3 axb4 Nb5 d5 Nc3 f4 Bb2 d4 Nb1 f3 Bc3 dxc3 a4 g5 h4 g4 e3 Qd7 d3 Qd4 Na3 Qg7 Ra2 Qd4 Rc2 Bh6 Re2 Bg5 hxg5 Ra6 Qb1 Ra8 Kd1 fxe2+ Kc1 Qd8 Qc2 Qd4 Qd1 Qd8 f4 Kf7 f5 e1R f6 Kg6 f7 Kf5 f8Q+ Nf6 d4 Ke4 d5 b5 a5 h5 g6 e5 a6 g3 d6 c2 Kd2 c1R c5 h4 g7 h3 g8B h2 a7 b3 d7 b2 Bgc4 Ne8 Nc2 Bb7 Qf2 Qf6 d8N Nc6 Be6 Rg8 Ne2 Nd4 Nf4 Nd6 Nf7 N4f5 Nd4 Nh4 Nd3 Rc3 Bh3 Ra3 Nf5 b1N+ Kc2 Qh8 Rg1 h1R Ng5+ Kd5 Nh7 Kc4 Qdd2 Bf3 Qd1 Re2+ Qd2 Rh2 Kd1 Kb3 Rh1 Rab8 a8B Qg7 Be4 Rba8 Qa2+ Kc3 Qd5 Rc2+ Ke1 R8a4 Qa8 Kb3 Qd8 Rc3 Ba8 Bd5 Ke2 Kc2 Bc6 Bf3+ Ke1+ Nd2 Ne7 Ra8 Be4 Ng6 Be6 Qh6 B4d5 Bd1 Be2 Rh4 Rh2 Qh5 Bf1 Rha4 Rh3 Qg4 Rh5 Nh4 Rg5 Qb4 Bh3 Qb2 Rh5 Bf3 Rg5 Be4 Ke2 Qa1 Rh5 Nb1 Rf5 Ng6 Rh5 Bf5 Kf3+ Kd1 Rg5 Be6 Rf5 e4+ Kg4 Nh4+ Kf4 Bd7 Re5 Bg4 Nf5 Bf3 Be2+
1q3k1q/q3n1R1/r1n1Kp2/p1R2P2/2Q2b2/1q3b1p/PRQP1QBp/1N1N3q b - - 0 1 legal: proof: c4 b5 h4 bxc4 e4 g5 g4 a5 h5 d5 h6 dxe4 b3 Bd7 Bb2 Nc6 Be5 Rb8 Bg3 Bc8 Bh4 gxh4 g5 Rb6 Bg2 Nb8 Bh3 Rg6 Bf1 Rg7 hxg7 Be6 g6 Bc8 Ke2 c5 Ke3 e5 f4 h5 f5 h3 b4 c3 b5 h4 b6 f6 b7 c4 Bg2 c2 Qh5 c1Q Qh6 h2 Ne2 h3 Qh7 c3 Ng1 c2 Qh4 Qb2 Qf2 c1Q Nc3 Bd6 Nge2 Qd1 Rf1 Ne7 Rb1 Qdb3 Bh1 Nbc6 b8Q Bb7 Qc7 Qa8 Bg2 Qa7+ Nd4 Rf8 g8R Ba8 Ke2 e3 Kf3 e2 Ke4 e1Q+ Nde2 Qbb8 g7 Q2b3 Rb2 Bb7 Qf4 Qh4 Rc1 Qh8 Nd1 Kf7 Qf3 Rd8 Qc8 Bc7 Qf2 Rd6 Nec3 Ba8 Kf3 e4+ Kf4 e3 Ke4 e2 Nb1 Bb7 Rc5 Ba8 Qa6 Bb7 Qd3 Ba8 Qc2 e1Q+ Qe2 Qh1 Qf2 Ng6 Rd8 Bb7 g8Q+ Ke7 Qgc4 Re6+ Kd5 Bf4 Rd7+ Kf8 Rg7 Rd6+ Ke4 Nge7 Qd5 Ne5 Kd4 Ra6 Qdc4 Bf3 Ndc3 Bg4 Nd1 N5c6+ Ke4 Ng6 Kd5 Nge7+ Ke6 Bh5 Qe4 Bf3 Qc2
bN5Q/2ppn1BB/Rr1Pq3/2Knn1pP/8/n1PkQQq1/3rp1R1/1n1B4 b - - 0 1 illegal: No possible last move
Qb5q/4N1kn/1nQRK3/3NRNpQ/p4rp1/PP4P1/1q4p1/1B1q1nnr b - - 0 1 illegal: No proof kernel
1R1R1n2/4N2r/rpp1Qqq1/Q1P1k2b/1P5R/K1br1P2/1pNpB1Q1/b1b5 b - - 0 1 legal: proof: b4 a5 Nc3 g5 Rb1 Bg7 Ne4 Ba1 Bb2 a4 d4 e5 d5 a3 c4 axb2 a4 Na6 Nc3 Nc5 e4 Ne6 dxe6 f5 g4 fxe4 f3 h5 h4 hxg4 Kd2 Ke7 Kc2 Kf6 Kb3 d5 h5 d4 a5 g3 e7 e3 e8R b6 c5 e4 a6 g4 a7 g2 h6 d3 h7 e2 Rc1 e1R Rh5 e3 Ree5 g3 Rc2 e2 Na4 c6 Ka2 Bg4 Rh4 Bh5 Rd2 Ne7 Qc2 Rd1 Nc3 e1B Ka3 Ng6 Be2 Nf8 Re8 Qe7 Qb3 Ke5 Rb8 Qg5 Nd5 Qf6 Rc2 Bd2 Ne7 Bc1 Rcc4 Rd2 Rcd4 Rd1 Rdd8 Rd2 Nh3 g1B Nf2 g2 Nd1 Bd4 Ne3 g1Q Nc2 Bc3 Qg8 Qgg6 Qc4 Rg8 h8Q Rg7 Qhg8 Rh7 Qg4 Rd1 Qg2 Re1 Bf1 Re3 Be2 d2 Rb7 Rb8 a8Q Rd3 Qa5 Ra8 Rbb8 Ra6 Qe6+
1N4R1/5R1n/3rRQNk/2Bpp1r1/1N1pnr2/2qPqn2/4Pp1P/r2Q1b1K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 f5 hxg4 f6 e6 Bb2 c6 Bg2 Be7 Bd5 cxd5 Bc1 Qc7 Kf2 Kd8 Kf1 Qb6 fxe7+ Kc7 Ke1 Kc6 Ba3 Qc7 Bc1 Qd8 Kf2 Kd6 Kg2 Ke5 e8Q Kf6 a4 Kg6 c4 b5 a5 d4 d3 d5 c5 b3 a6 e5 a7 g3 c6 b4 c7 b2 Qb5 f5 Qe1 b3 Ra2 f4 Qf1 Kh6 Qe1 g5 Qe8 f3+ Kf1 g2+ Kf2 Bh3 c8R Na6 Rc2 Qc8 Qa4 Nc5 Nc3 b1R Ra1 b2 Qd1 Nf6 Qc6 Rf8 Ra6 Ra1 Na2 b1Q Ba3 g4 Nb4 Qc1 Rb2 Rb8 a8N Rb6 Nc7 Qe3+ Kg3 f2+ Nf3 Rf7 Rg1 Rf8 Qe6 Rd6 Rb6 Rf7 Nca6 Rf8 Qf5 Nh7 Nb8 Qc7 Rb7 Qa5 Rf7 Ne4+ Kh4 g3 Rc2 Rg8 Rc6 Rg5 Ra6 Qc5 Rb6 Qc3 Qf4 Rf6 Re6 Rg6 Qf6 Rf5 Rf1 g1N Re1 g2 Rf1 Neg5 Kg3 Rf4 Re1 Qed2 Nh4 N1f3 Rg1 Qe3 Rd6 Bd7 Re6 Ne4+ Kh3 Bc8 N4c6 Bd7 Bc5 Bc8 Nb4 Bd7 Re1 g1R Rf1 Rg2 Rg1 Rg5 Rg3 Bc8 Kg2 Bd7 Kh1 Bc8 Ree7 Bh3 Re6 Bf1 Rg2 Rgf5 Qd8 Rgf6 Rg8 Rh5 Ng6 Rg5 Rc6 Rd6 Qf6 Rd8 Re6 Rd7 N4c6 Rd6 Nb4
3brq2/3bQ1p1/3rNpP1/2B1q1PK/1q5n/NNQp2Q1/qR1p1P2/b2B1k2 b - - 0 1 legal: proof: b4 e5 g4 b5 h4 c5 d4 cxd4 a4 bxa4 g5 Nc6 Ra3 Nce7 h5 e4 Rd3 Ng6 hxg6 exd3 e4 Ke7 c4 Kd6 b5 Kc5 b6 d5 e5 a5 e6 h5 b7 a3 b8N d2+ Ke2 a4 Kf3 h4 Kg4 d3 Qb3 Kd4 c5 d1Q+ Be2 a2 c6 a1B c7 h3 Na6 d2 Nb8 h2 Nd7 a3 e7 a2 e8Q f6 Qh3 Ne7 Qh6 Nf5 Qe7 Qc2 Qd6 Nh4 Ba6 Be7 Ba3 Qf8 Nh3 Bd8 Be2 Ra6 Bd1 Kd3 Qe7 d4 Bc5 Rd6 Kh5 Qb2 Re1 h1Q Na3 Qhb7 Re4 Q7b4 Nf4+ Kc3 Ne6 Kd3 Nb8 Qc2 Nc6 Bd7 c8Q Qcb3 Qh7 Qd5 Na5 Qe5 Rf4 Rg8 Nb3 Rh8 Bc2+ Ke2 Bd1+ Kf1 Re4 d3 Rc4 Bb2 Rc2 a1Q Qc6 Bc3 Rb2 Qa2 Qc7 Qf7 Qc6 Re8 Qg8 Bd4 Qf3 Bc3 Qg3 Qf8 Qgf7 Bc6 Qc7 Bd7 Qe7 Bd4 Rc2 Ba1 Rb2 Qb5 Qa5 Qa4 Qb4 Qa5 Qd4 Qb4 Qc3
1k1n1B2/r1n2p2/2p1RPQR/p3Np2/2b1Q1P1/Pb6/pNrq2bK/R3n2N b - - 0 2 illegal: No proof kernel
1K3nR1/2R3pp/N1QB2B1/P1bp3Q/nkp2q2/3Pp1Pr/2r2bQr/n4R2 b - - 1 2 illegal: No possible last move
1r1Q4/bQnBKp1b/pB3n1q/1r2QP2/4p2N/1PpP3N/5n1p/k2RqB2 b - - 0 1 illegal: No proof kernel
4B2R/2n1brq1/1B3Qp1/rbb1P2N/1qp2P1K/2p1kpP1/3pB3/NQn4N b - - 0 1 illegal: No proof kernel
2b3rq/r2pbP2/N7/b1N2QP1/1qnPK2R/1n1Q2pp/2RpRp2/5kNB b - - 0 1 illegal: No proof kernel
KN2rB1b/2qR1PN1/nq1pn1p1/1R3P2/Q3R1p1/1pNb3p/2rP3q/1Q3k2 b - - 0 1 illegal: No proof kernel
2KBRnbr/p3rrNn/1Q3p2/N6p/PqB1P1QQ/2p4P/p7/b2k2rN b - - 1 2 legal: proof: d4 g5 c3 d5 c4 e5 cxd5 exd4 a4 b5 f4 b4 Ra3 bxa3 b4 gxf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kb5 Kg4 e4+ f3 d6 c5 d7 d3 Ne2 c4 Bg5 c3 Ng3 a2 Nd2 h6 Qe1 f2 Nb3 d2 Na5 Qe7 d8N d1R Ne6 Rh7 Bc4 Nd7 Kc6 f1R Kc7 Rb1 b5 Ngf6 b6 h5 b7 Bh6 Rg1 Qb4 b8Q Bb7 Nh1 Bd5 g3 Kf3 Qb6 Rah8 g4 Rf2 Bh4 Bc1 h3 Bb2 g5 Ba1 g6 Rf1 Rg5 Nf8 Kc8 Rg7 Re5 N6h7 Bf6 Rg1 Qh4 Rbf1 Bd8 Rf2 Bb3 Ke2 Bc4+ Ke1 Nd4 Kd2 Re8 Kd1 Ne6 Rf5 Qbf2 f6 Qb6 Rb7 g7 Re5 g8Q Rbg7 Nd4 Rb7 Qg2 Bg8 Ne6 Rf7 Ng7 Ree7 Qgg4+
1r5k/2Pp1Kpp/R1pNR2b/PQN1bB1n/5r1n/1Q6/1bqP2p1/3QR2b b - - 0 1 illegal: No proof kernel
1nq3Q1/p1n2Q2/1QpP2Rq/Nk1b1p2/1q1p4/PrP2p1N/1n1B2R1/2bR1K2 b - - 0 1 illegal: No possible last move, all moves rejected
3N1KQ1/1bppp1Q1/2P1b1P1/k2P2r1/2r1Q1qB/1b1B1pnR/R6p/b4b1B b - - 0 1 illegal: No proof kernel
2br1q2/r2p1bkR/R1PP2p1/r1bQRp1p/1NN5/Q2b4/pn1QBPK1/8 b - - 0 1 illegal: No proof kernel
1B2K3/1r2Q1P1/bn2b1N1/p1nn2p1/B2B1pp1/3Q1rkp/PqQ1pP2/N4R2 b - - 0 2 illegal: Other
2q3Q1/2p3p1/Rpn1p1B1/1pNPP2r/rk2Q3/1b2Q3/3KnpPN/N2bRr2 b - - 0 2 illegal: No proof kernel
4R1NN/6pq/3KbbPN/p1pQQqr1/1nq5/P1qB2n1/1nPkrQ2/rR6 b - - 0 1 illegal: No proof kernel
K1bq1n2/n5b1/2p2k1p/1R3b2/1n1NNp2/QrP1pP2/1BqqPQ1N/4QB1r b - - 0 1 legal: proof: h4 a5 a4 g5 b4 gxh4 c3 axb4 Ra3 d5 Ra1 d4 Ra2 d3 Rc2 dxc2 g4 b5 d4 e5 Kd2 Ke7 Kd3 f5 d5 f4 Ke4 c6 g5 b3 a5 b4 g6 h3 a6 b2 g7 b3 d6+ Kf6 a7 h2 d7 Ne7 g8Q Bg7 Nd2 b1B Qc4 b2 Ngf3 h6 Rg1 h1Q Rg5 Nd5 Qa4 Nb4 Qe1 Qh3 Nh2 Qf5+ Kf3 Qg6 Qa3 e4+ Kg4 Re8 f3 e3 Qf2 Qd3 Rb5 Re5 Qa1 Rh5 Qa3 Ke7 Ne4 Qd2 Qa1 Rh4+ Kf5 Kf7 Ng4 Rh1 Nh2 Ke7 Ng3 Kf7 Ke4 Kf6 Qa3 Qh8 d8N Nd7 Ne6 Rb8 a8Q Qd8 Nd4 Nf8 Qb7 Ba2 Qba8 b1N Bb2 c1Q Q8a4 Rb7 Qd1 Bae6 Qde1 Bed7 Ndf5 Qdc2+ Kd4 Q1d2+ Kc5 Rb8 Nd4 Bf5 Qa6 Na3 Qa4 Nc4 Qa3 Nd6 Ne4+ Kg6 Rb7 Nb5 Rb6 Na7 Rb5 Nd5 Ra5 Rb3 Rb5 Qe8 Kd6 Nb4 Kc7 Qd8+ Kb8 Kf7 Ka8 Kg6 Nd6 Kf6 Ne4+
6qq/p1bQq1Qb/1nqR1Np1/q4N2/7n/Pk1p1B2/Q2P1pPK/r1Rr3R b - - 0 1 illegal: No possible last move
2R1q2k/qpK1bR1p/1Q3n2/1BR1p2P/1P2PNnq/1b3p1Q/rn1Qr2q/2B5 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 f5 a4 f6 gxf6 Nd2 f5 Nb3 axb3 Be3 f4 Bd2 Nc6 Bc1 Nb8 Kf2 f5 Kf3 Kf7 c4 Kg7 a4 d5 g4 b2 h4 b1Q g5 d3 h5 d2 g6 d4 a5 d3 a6 Qa2 a7 Nh6 e3 Qe8 c5 Nd7 c6 Nf6 c7 Be6 c8Q Bb3 Bb2 Ng4 Rc1 e5 e4 Rg8 Nh3 Kh8 Rc5 Be7 Bc1 Qa3 Qe2 d1N Qd2 Nb2 Be2 Qa5 Rf1 Qad8 Qc7 Rg7 Qb6 Qd4 Qc3 d2 Bb5 Qg1 Qc2 d1Q+ Qe2 Qdd8 Qd2 Qh2 Rf2 Rb8 a8Q Rg8 Qaa7 Ra8 Qa3 Qb8 Rf1 Qa7 Rf2 Nh6 Ke2 f3+ Ke3 Rg7 Nf4 Qh4 Rf1 f2 Kf3 Nhg4 Ke2 Bd5 Qh3 Bb3 Kf3 Qab8 Ke2 Ra2 Kf3 Qa7 Ke2 Nc4 Kd3 Nb2+ Kc3 Rf7 g7+ Kg8 Re1 f1Q Rd1 Qe2 Rf1 Qh2 Rf2 Bd8 Rf1 Rd7 Rf3 Be7 Rf1 Kf7 g8R Rc7 Rf8+ Kg7 Rf7+ Kh8 Rf3 Ra3 Rd3 Ra1 Rd8 Ra2 Rc8 Rd7 Qd1 Rd2 Qc2 Re2 Qd2 Nd1+ Kd3 Bc2+ Kc4 Ba4 Bc6 Bb3+ Kb5 Nb2 Qa6 Qb8 Kb6 Qa8 Kc7 Qa7 Ng2 f4 Bb5 f3 Nf4 Qg5 Qad6 Qh4 Qb6
B2Qn2r/bK3bp1/Qbr1B1Q1/3rp3/1Bq1P1RN/n4NPp/1p5P/br5k b - - 0 1 legal: proof: c4 d5 e4 dxc4 b4 f5 a4 a5 Ra2 axb4 Ra3 f4 Re3 fxe3 Ke2 Kf7 Kf3 Ke6 d4 h5 a5 c5 a6 b5 d5+ Ke5 a7 e2 d6 e1B d7 c3 Qa4 b3 Nh3 h4 Qa5 b4 Qb6 c2 Be3 c1R Be2 c4 Ng5 h3 Nd2 c3 Qc6 c2 Qb6 b2 Nb3 b1R Qb7 Qc7 d8Q Na6 Nd4 b3 Bc4 Bc3 Qe8 Nb4 Qa6 Be6 Bd2 Rd8 a8B Rd5 Nf5 Bf7 Rg1 Ba1 Ke3 b2 Nh4 Nf6 Qec6 Ne8 Qg6 e6 Bb3 Qc4 f3 Nc6 Bb4 Nd4 Ba2 Bc5 Bb3 Bb6 Ba2 Qc5 f4+ Kd6 f5 Ke5 Kd3 Kf4 f6 e5 Ngf3 Qb5+ Kc3 Qc6+ Bc4 Nb5+ Kb3 Qc7 Ka4 Na3 Bb3 Qc4 Ba2 Bg8 f7 Ba7 f8Q+ Bf7 Qfd6 Ke3 Qd8 Ke2 Qb5 Kf2 Ka5 Bb6+ Ka6 Ba7 Kb7 Bb6 Rd1 Ba7 Ne1 Kg1 Qba6 Kh1 Rd2 Rd1 g3 c1B Rf2 Bce3 Rf4 Beb6 Rg4 Rd6 Nef3 R1d5 Bb3 Rf6 Ba4 Rfd6 Bd7 Rc6 Be6
QB1K1N2/p1Q1p1q1/3p1nR1/bbQpPkB1/2RP1r1n/P3rb1p/5q2/3Br3 b - - 0 1 illegal: No proof kernel
1b1N4/Brp2r2/1p2p1BK/NPb1PN2/Qq5n/1pPn4/1Qk1bb1p/q3QR2 b - - 0 1 illegal: No proof kernel
1N6/1RK5/3n2PP/Bb1b2B1/1qP2RN1/q1b2N1k/brRr3b/2B1qqn1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 f4 h6 g4 Qb6 f5 Qc7 Bh3 Qd8 Qf3 h5 Qf4 gxf4 g5 Nh6 Bg4 hxg4 Bd2 Ng8 Be3 Kf7 Bc1 Ke8 Ke2 Kf7 Kd3 d5 c4 e5 b4 a5 h4 f3 h5 a4 h6 f2 b6 f1Q+ Ne2 a3 b7 e4+ Kd2 g3 b5 d3 Kc3 d4+ Kb3 e3 b6 d2 Rg1 d1B+ Ka2 d3 Bb2 d2 Bc1 g2 Nf4 e2 Ne6 e1Q Nf4 Bf3 Kb3 d1B+ Ka2 Bb4 Ng6 Ne7 Nd2 Qd6 Rb1 Bd5 Rb3 Nbc6 b8B Rd8 b7 Ne5 Nf3 Bc3 Bc7 Bd7 b8N Qb4 Ba5 Bb5 Rh1 g1B Rh2 Rd6 Rc2 Nc8 Rbb2 Bh2 Rb1 Qc5 Kb3 a2 Rb2 a1Q Rb1 Kg8 f7+ Kh7 f8B Rb6 f6 Nd6 f7 Ra7 Ne7 Rd7 Nec6 Kg6 Be7 Kh5 f8R Kg4 g6 Kh3 Beg5 Rd8 Rf4 Rb7 Nfd4 Nf3 Ne5 Ng1 Rb2 Qb1 Ndf3 Qa7 Ka3 Qae3 Ng4 Rb6 Rg2 Bb3 Rgc2 Ba2 Rb3 Ba6 Ka4 Qe7 Ra3 Rb2 Rb3 Qa1 Rb7 Qf8 Bb4 Bb5+ Ka5 Qb1 Rg2 Qbd3 Kb6 Qde3+ Kc7 Qa7 Nd7 Qa3 Rc2 Qfe7 Ba5 Qb4 Bd2 Q7e3 Nb8 Qa7 Bb6 Qaa3 Ba5 Re8 Nd7 Re2 Bc1 Rd2 Nb8
5Br1/1RK2PN1/Pn1Bp2N/2Nkrr2/3B1q2/r1R1nbPn/2b1b2b/R7 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 h5 e4 a5 f4 axb4 f5 h4 g3 h3 Bg2 hxg2 Qf3 f6 e5 Rh5 exf6 Rh8 Qf4 gxf4 Kf2 Kd7 Kf3 Kd6 Ke4 b5 a4 c5 h4 c4 d4 f3 f7 e6 h5 f2 h6 f1B f6 c3 a5 c2 h7 b3 Ne2 g1N Be3 c1R Nbc3 b4 Nf4 b2 Na4 b1R Nc5 b3 Nh5 b2 Ng7 Bb7 a6 Qc7 Rh2 Nd7 Rc2 Ne7 Rc3 Rg8 h8R Be2 Rh7 Nf5 Bf2 Be7 f8B Ne3 Kf4 Qb8 Ke4 Nb6 Kf4 Kc7 Ke5 Nh3 d6+ Kc6 Bg1 Re1 d5+ Kb5 Bf2 Rbd1 Bg1 b1B Bf2 Bc2 Bg1 Qc8 d7 Rd3 d8N Qc7+ d6 Bbf3 Nf7 Kc6 Nh6 Bd8 Bf2 Qf7 d7 Rc8 Rc4 Ra3 Rc3 Bc7+ Bd6 Rcf8 d8B Bb8 Be7 Ba7 Ngf5 Rg5 Rg7 Rg8 Bf8 Qc7 Rd7 Qb8 f7 Rf1 Kf6 Kd5 Ng7 Re5 Ke7 Qc7 Bg1 Qb8 Rb7 Qc7+ Nd7 Qc4 Kd8 Qf4 Nc5 Nf5 Na4 Qd2 Rc1 Nc4 Bf2 Bh1 Be1 Bg1 Rb2 Bh2 Rb7 Nb6 Nc5 Rf4 Rb1 Bhf3 Ra1 Qd4 Bf2 Qc4 Bd4 Ne3 Kc7 Qa4 Rd3 Rff5 Bb2+ Qd4 Rb3 Qh4 Bd4 Qf4 Rc3
Nq3n2/2PnP1b1/nrP3p1/KR1bq2B/1pBk2rn/1b1N3R/3B4/5RN1 b - - 0 1 legal: proof: f4 e5 g4 a5 d4 f5 b4 axb4 Qd3 c5 dxc5 h6 Qh3 exf4 gxf5 h5 Qg4 hxg4 Kd2 Kf7 h4 Kf6 a4 Ke5 c4 d5 e4 b5 f6 d4 a5 f3 h5 g6 c6 g3 c7 g2 f7 b3 a6 d3 Kc3 b2 a7 d2 c5 d1B Kb4 f2 h6 Kd4 e5 Qg5 h7 Na6+ Ka5 Nf6 c6 Bg7 f8R Nd7 e6 Qe5 e7 Rb8 a8B Bb3 Bc4 f1N Nd2 b1Q Rh3 Ng3 Rf1 Rb6 Bb7 Nf5 Be2 Nh4 Bh5 Bd5 Nc4 Nf8 Bd2 Bce6 Rf5 Qb3 Raf1 b4 Bc8 Qf3 Rg5 Qf7 Rgf5 Qe8 Bd7 Bg8 Be6 Qb8 Rg5 Rb7 Nb6 Bf7 Na8 Rb6 Bf5 Bfe6 Bd3 Bb3+ Bb5 Bed5 Rhg3 Qf6 Bc4 Qe5 Nh3 g1N Rgf5 Ngf3 Ng1 Qe2 Rh3 Ne5 Rg5 Ned7 Re5 Rg8 h8N Qh2 Nf7 Rh8 Ref5 Rh6 Ne5 Qe2 Nd3 Qe5 Bg4 Rh5 Bd1 Rg5 Bh5 Rg4 Bf4 Bf3+ Nc5 Qd6 Nd3 Bh1 Rc5 Bd5 Bd2 Qe5 Rb5
5r2/2Rr2Br/Pp1B1nbp/N1r1k3/1P2r3/B3qpRK/1R1N3P/nN5q b - - 0 1 legal: proof: e4 a5 c4 f5 f4 d5 cxd5 g6 b4 a4 Qb3 axb3 Bd3 Bg7 e5 Bf6 Be4 fxe4 f5 gxf5 exf6 Kf7 Nh3 Kf8 Ng1 Ke8 Kf1 Kf7 g4 e5 Kg2 c5 a4 c4 d4 b6 g5 e3 a5 e2 d6 Ke6 g6 e1R a6 c3 f7 h6 f8B c2 d7 b2 g7 e4 d5+ Ke5 d6 f4 Nc3 b1Q Nb5 e3 Ba3 c1R Nc3 e2 Be7 Nf6 g8R Red1 Rg3 e1R Ra2 Re4 Rb2 Qe8 d8B Nc6 d7 Na5 Kh3 Nb3 Bf8 Rdd4 Bde7 Rh7 Bg7 Qa1 Nb1 Rc5 Nd2 f3 Ne2 Qc1 Nc3 Na1 Ncb1 Bb7 d8N Rd7 Rf1 Rb8 Rf2 Qh1 Rfg2 Bd5 Nb7 Bf7 Na5 Bg6 Rg1 Qh8 Re1 Rf8 Rc1 Qg8 Rc3 Qb3 Rc1 Qe3 Rc4 Rcd5 Rc7 Rc5 Bd6+
b3b3/3p1Nk1/1b5r/NRPq2nn/rR2bBPq/n2PN3/4bn2/KRB4B b - - 0 1 legal: proof: b4 e5 f4 exf4 h4 b5 a4 c5 c3 g5 Qb3 gxh4 axb5 Ba6 b6 Bb7 b5 Bc8 Qb4 cxb4 Kd1 f5 Kc2 Kf7 Kb2 a5 e4 h5 g4 b3 b7 f3 b6 f2 c4 a4 e5 a3+ Kc3 b2 e6+ Kg7 e7 f4 e8R f3 Bd3 f1B Rh3 f2 Nf3 a2 Bf5 Be2 Ng1 f1B Be6 Rh6 Rh2 h3 Kb3 h4 Rg2 h2 Nh3 h1N Rg3 Nf2 Rg2 Ra4 Bd5 Na6 b8N Nc7 b7 Bc5 Nf4 h3 Nd3 h2 Re5 h1B Nc3 b1N Kb2 Bb6 Nd1 Qh4 Nc6 Ne6 b8B Nf6 Ne3 Na3 Rb1 Ng5 Ka1 Bb7 Na5 Nh5 c5 Bc6 Re4 Ba8 Ne5 Bd3 Rg1 Bfe2 Reb4 Bg6 d3 Be8 Nf7 Be4 Bf4 Bg6 Bh1 Bge4 Kb2 a1Q+ Kb3 Qd4 Ka2 Qc4+ Ka1 Qd5 Rd1 Rd6 Rd2 Rh6 Rdb2 Bb7 Rb5 Ba8 R2b4
2r3R1/1nqrnrb1/R4R2/3q1NNb/P2B1r1p/1B1b3P/N1b2P1B/1q1k2K1 b - - 0 1 legal: proof: e4 d5 b4 f5 c4 fxe4 cxd5 g5 h3 a5 Qf3 axb4 Qf4 g4 Qh2 g3 Bd3 gxh2 Kf1 Kf7 g4 Kf6 a4 Ke5 g5 Kd4 g6 h5 g7 e5 d6 c5 d7 b5 Na3 h4 Rb1 b3 Kg2 c4 Rb2 c3 Nb1 b4 Bb5 e3 d3 c2 Bc6 e4 Nc3 e2 Rb1 e1Q Bb2 c1R Ra1 e3 Be4 e2 Bb7 Na6 Ra3 Ra7 Ra2 Rd1 Bc1 b2 Ra3 b1B Na2 b3 Bf4 b2 Bd5 Ne7 g8R Bg7 Bb3 Qc7 d8N Bc2 Nf7 b1B Nh6 Nc5 Bg3 Nb7 Nf3+ Kc5 Bf4 Bg4 Rg1 Bh5 Ng5 Kd4 Ra8 Rc8 Nf5+ Kc5 Be5 Qf1+ Kh1 e1R Bg3 Re4 d4+ Kb6 d5 Kc5 d6 Rf4 d7 Qb5 d8B Rd7 Ne3 Kd4 Nf5+ Kd3 Rg2 Kd2 Rg1 Nd5 Bf6 Ne7 Bd4 Qbc4 Kg2 Qd5+ Kf1 h1Q Bh2 Qhe4 Rg2 Kd1 Kg1 Ra6 Ra7 Rf6 Ra6 Rff8 Bc4 Rf7 Rf3 Bd3 Bb3+ Bbc2 Nd6 Rg4 Rf6 Rf4 Rg3 Qe3 Nf5 Qc1 Nh7 Qb2 Rgg6 Qb1 Ng5 Bh6 Rg8 Bf8 Nd6 Bg7 Nf5
Bn1NB1rq/1R1r1p2/qN1b1PP1/1k2P2r/N6p/1n2b3/R1KRbB1r/7b b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 d5 c4 Qd3 cxd3 d6 exd6 Ra6 d5 Ra1 d4 Kd1 h5 e4 d5 b4 Kd7 c4 a5 g4 a4 f4 d2 b6 Kc6 f5 a3 e5 a2 c5 h3 g5 h4 g6 h2 b7 Ne7 f6 Bg4+ Nf3 Nf5 Bg2 Kb5 c6 Bd6 c7 Rh5 c8B Qh8 Kc2 d1R Ng5 Be2 Be3 Rf1 Rg1 h1B Ne6 Rf2 Bf3 Rg2 Bf2 Rh2 Rg2 d3+ Kd2 d4 Nd8 Ne7 Bd7+ Nec6 Kc1 d2+ Kc2 d1R Be8 Ka4 b5 Na5 Bfc6 Nb3 b6+ Kb4 Nc3 d3+ Kb2 d2 Na4 Ka5 Kc2 Ka6 Rb1 a1B Rb2 Ka5 Ra2 Bd4 Bf3 Be3 Bd5 Nc6 b8N Kb5 Nd7 Rc8 b7 Nb8+ Nc6 Rd8 Ndb6 Rd7 Nd8 Ra1 Be4 d1Q+ Kc3 Qe1+ Kc2 Qa5 Bf3 Qa6 Be4 Nc6 b8R Rd1 Rb7 Nb8 Rg1 Rd4 Rd1 Rd5 Rd2 Rc5+ Kb1 Rc8 Bf3 Nc5 Kc2 Nb3+ Bc6+ Ka5 Ne6 Qb5 Rc7 Re7 Bed7 Rg8 Be8 Rd7 Nd8 Qa6 Ba8 Kb5 Rb7
1r6/5Ppb/nRN1q1P1/Kb1r1N2/1RbB3r/P3bbB1/3pBNp1/nRk5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 c5 g5 cxd4 Qg4 hxg4 Kd2 Kf7 f4 b5 c4 e5 h4 d5 h5 b3 a3 e4 f6 Ke6 f5+ Ke5 f7 Kf4 f6 d3 Kc3+ e3 c5 b4+ Kb2 d4 h6 d2 h7 d1B c6 g3 c7 d3 Bg2 Qd5 Nc3 Bc5 f8B Qe6 f7 Ba6 c8N Bf3 Nb5 Nf6 Nc7 Bb5 Rh5 Ne4 Ne8 Nd2 Nf6 e2 Nh3+ Ke3 Ne8 e1R Nf2 Na6 Ne7 Rd1 Rb1 Rb8 Bf1 g2 Rh4 Bb6 Rc4 Ba7 Be2 Bc5 Ka1 b2+ Ka2 Bd4 Nc6 Ba7 Ra1 b1B+ Kb2 b3 Kc3 b2 Rb4 Ba2 Bd6 b1B Bb2 Bac4 Bg3 Bc2 Nd6 Nb3 Rc1 Na1 Rb1 Rhd8 h8R Rh1 Rh7 Rh4 Rh6 d2 Rf6 Bh7 g6 Bc5 Nc8 Rd5 N8e7 Nc7 Ra4 Ba7 Kb4 Na6+ Ka5 Bd4 Rb4 Bc5 Ng4+ Ke4 Nf5 Be3 Bd1 Kd3 Be2+ Kc2 Nf2 Rd7 Bd4 Rd5 Na7 Qe7 Rb6 Qe6 R1b2+ Kc1 Nc6 Rg4 R2b3 Rh4 Rb1+
N1N1r1B1/3R4/5B2/3pnPb1/pPq2n1r/KNR2n1p/2RBb2P/b1r3nk b - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 fxe4 f5 g6 Qf3 g5 Qf4 gxf4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 a5 g4 h5 c5 d5 c6 e3 g5 Ke4 b6 e5 b7 a4+ Ka2 f3 b4 d3 g6 h4 g7 f2 c7 d2 Ba3 d1N Ne2 Kf3 Bb2 e4 Bc3 h3 Ka3 Be7 Bf6 Rh4 Bd4 Nc6 b8B Ba6 c8N Ne5 Ng3 e2 Ka2 e1B Bb5 Kg2 Nf1 e3 Nfd2 f1R Nc3 e2 Be8 Qc7 Nb3 Qc4 Bf7 Bg5 Ka3 Ne7 g8R N7g6 Nb5 Bc3 Rc1 e1N Rd8 Ba1 Rc3 Nf4 Rd7 N1f3 Bg8 Re1 Nc7 Rg1 Rc1 Nc3 Rc2+ Nce2 Bc3 Rb1 Bd2 Rc1 Re1 Neg1 Re3 Bb5 Rec3 Kh1 Ba7 Ba6 Bd4 Rb8 Na8 Bb5 Nd6 Re8 Nc8 Qc7 Bc5 Be2 Be7 Qc4 Bf6
1Kb1r1rn/n3B2q/5pp1/3B1pp1/1N2PnPN/1R1p1P2/4R3/1BNb1Rkq b - - 1 2 illegal: No proof kernel
nk1R2R1/R2q1q2/Pp1RQB2/P7/3Rq1B1/1r1pbbPK/1n1Np3/4q3 b - - 0 1 legal: proof: b4 c5 e4 a5 bxa5 f5 d4 cxd4 f4 Ra6 g3 Rg6 h3 Rg4 hxg4 g6 Nc3 fxe4 f5 g5 Nd5 Nc6 Nf4 gxf4 Kf2 Nb8 Ke2 Kf7 Ke1 Ke8 Kf2 d5 Kg2 Kd7 a4 Kc7 c4 e5 a6 h5 g5 h4 g6 e3 c5 e4 c6 f3+ Kh2 d3 f6 f2 a5 h3 f7 e2 g7 e1Q Nf3 e3 Nd4 d2 Qa4 d1Q Bb5 f1Q Nf5 d4 Bd3 e2 Qc4 Nf6 g8R Nd5 Be3 Nf4 Nh4 Bc5 f8R Nd7 Bf5 Kb8 Rf7 Nb6 Ra4 Nd3 Bg5 Nb2 Qe6 Na8 Nf3 b6 Rc7 Rh4 Bg4 Bb7 Nd2 Qf7 Bf6 d3 Rb4 Be3 Rd4 Qa4 Rcd7 Rh5 R7d6 Rb5 Rf1 Rb3 c7+ Ka7 c8R Qad7 Rc7 Kb8 Rf5 Bf3 Ra7 Qc1 Rfg5 Qcc6 Re8 Qe4 Rg6 Bg5 Kg1 h2+ Kf2 h1Q Rgg8 Qh3 Kg1 Qf1+ Kh2 Qe1 Kh3 Be3 Rxd8+
2N5/qPk1Nnqb/qn2Pn1R/3n4/2N1rN1B/2bQB2P/3n1K2/2b3Nr b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 axb5 g5 g4 gxf4 c4 e5 cxd5 Ba6 g5 Bc8 Bh3 e4 Bg4 hxg4 Ra3 Nf6 Rd3 Ng8 Rf3 exf3 d4 Kd7 e4 f5 b6 a5 e5 c5 b5 c4 b7 g3 b6 a4 g6 a3 g7 a2 d6 a1Q d5 f2+ Ke2 f1Q+ Kd2 f3 Ke3 g2 Qe2 f4+ Kd2 f2 Nf3 g1N Ng5 c3+ Kd3 f3 Ke3 c2 Bd2 c1B Na3 Qf6 Nh3 Ra4 Qd3 Rf4 Nc4 Qa7 Qc2 Qf7 Qd3 Nf6 g8N Qg7 Ne7 Kd8 d7 Rfh4 Nf4 Nh3 Ne2 Ng5 Ng1 Rf4 e6 Nf7 Ng6 Rfh4 Nf4 Bb4 Qf5 Bc3 Qd3 Na6 b8N Nc5 b7 Kc7 d8N Bd7 Ne5 Be8 Nbd7 Na4+ Nb6 Rg4 Ndc6 Rh7 Qf5 Qfa6 Ne7 f1N+ Kf2 Ne3 Nbc8 Nb6 Nc4 Ba4 Qd3 Bc2 Nfe2 Re4 d6+ Kb8 d7 Ned5 Bg5 Kc7 Be3 Rh5 Nf4 Bb1 Kf1 f2 Ke2 f1N Kf2 Nd2 d8B+ Kb8 Neg6 Ng8 Bg5 Ngf6 Nge7 Kc7 Bh4 Ree5 Qe2 Bh7 Qd3 Re4 h3 Rf5 Rh2 Rg5 Rg2 Rge5 Rg6 Rg5 Nge2 Rg1 Rh6 Rh1 Ng1
BR2bN2/3P1Q1r/1q1q2nR/2r1RqNR/3b1P1q/1R3q2/k2KP3/1qn2b2 b - - 0 1 legal: proof: h4 d5 d4 b5 g4 e5 a4 f6 axb5 exd4 c4 Ba3 cxd5 Bf8 h5 g6 g5 gxh5 g6 h4 Bg5 fxg5 b4 Kd7 f4 Kd6 g7 a5 b6 h5 b5 Kc5 d6 Kc4 b7 c5 b6 d3 Nh3 d2+ Kf2 a4 Ke3 a3 Ra2 g4 Rb2 a2 Rb3 a1Q Rg1 g3 Ra3 g2 Rd3 Qaf6 Rh1 g1Q+ Nf2 h3 Bg2 h2 Ra3 h4 Rb3 h3 Ra3 Rh7 Qe1 d1Q Ra4+ Kb3 Ra6 c4 Ra4 c3 Be4 c2 Nc3 c1Q+ Qd2 Qf5 Kd3 Bd7 Na2 Nc6 b8R Nd4 b7 Ne7 g8R Ng6 Ra5 Bg7 Re5 Ra5 Ng4 Rc5 Nf6 Be8 Nd7 Qh4 Nf8 Ka3 d7 Nb3 Nc3 Bh8 Rd5 Bd4 Rh8 Qb2 Re5 Qgg4 Nb5+ Ka2 Nd6 Qb1+ Qc2 Nc1+ Kd2 Qf3 Nf7 Qe7 Ng5 Qd6 Rd1 h1B Bc6 Rf7 Rh6 Bg2 Rh1 h2 Be4 Rh7 Bd5+ Ka3 Bc6 Qb5 Qc4 Bf1 Qf7 Qa6 Rd8 Kb2 b8R+ Qb6 Ba8 Ka3 Rb7 Kb2 Rdb8 Ka1 Rg1 h1Q Rg2 Qh4 Rh2 Qa5+ Rb4 Qab6 Rb3 Ka2 Rh1 Qhg3 R1h5 Qgf2 Qg7 Qh4 Qf7
1br4N/3K4/R5q1/1Rb3Pn/NBN2kP1/2N2n2/1nP1bqqn/1b1Q2rN b - - 0 1 legal: proof: d4 e5 f4 b5 h4 c5 a4 cxd4 axb5 g5 Kd2 d3 hxg5 exf4 e3 Ke7 Be2 dxe2 Ra6 Ke8 Ra2 Nh6 Ra1 Ng8 Kd3 Ke7 Kc4 Ke6 g4 Ke5 b4 e1Q b6 a5 Kb5 d5 e4 h5 b7 f5 Ba3 a4 Qd3 f3 Qf1 h4 Ra2 f4 Qg2 d4 Qf1 d3 Nd2 f2 Ra1 h3 Ra2 f3 Nb1 h2 Nh3 d2 Qg2 f1N Nf2 d1N Qg1 Be6 Rb2 Nf6 Nc3 Nbd7 Kc6 Qe8 b8N Bc5 b5 Qg6 b6 Kf4 b7 Nh5 e5 Ba2+ e6 Bb1 Bb4 a3 Na6 a2 b8N a1B Kc7 Rd8 e7 Ne5 e8N Rd6 Ra2 Nb2 Nd7 Rd1 Nf8 Rad8 Nd6 Rc8+ Kb7 Rc1 Nc4 Qe3 Ra5 Rd1 Rb5 Re1 Nfe4 f2 Ng3 Qe2 Nd2 Nf3 Nc4 Re8 Kc7 Rc8+ Kd7 Rc1 Qg2 Qe1 Rg1 h1Q Qh3 Qg2 Qh1 N1h2 Rf1 Ba7 Nc5 Bb8 N5a4 Qe2 Rd1 f1B Rd6 Qef2 Ra6 Bd3 Qd1 Be2 Qd3 Rh1 Qd1 Rg1 Nh1 Nd3 Ne4 Bh8 Nec3 Nb2 Ng3 Bd4 Nh1 Qg8 Nd2 Bc5 Ng6+ Ke3 Nh8 Kf4 Nc4 Qh7+ Ke6 Qg6+ Kd7
b3qN2/5bb1/Rbk3P1/BnnBQ2N/2Pr1B2/4K1n1/P3Bn2/2nqb1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 d5 d4 c5 Ba6 cxd4 Bf1 g5 hxg5 d3 Bf4 b5 Nd2 d4 Be3 Ra7 Bf4 Rd7 Be3 Rd5 exd5 f5 Nc4 Bh6 Bc1 Bg7 Nd2 Bf8 Rb1 Bg7 Rb3 Bh6 Ra3 Bf8 Ra6 Kf7 Re6 Ke8 Re4 fxe4 g4 Kd7 f4 h5 Kf2 e5 c4 h4 d6 e3+ Kf3 e4+ Kg2 h3+ Kg3 h2 f5 e2 Kf4 e1B g6 b3 g5 e3 g7 b2 g6 b1N f6 b4 f7 b3 Ndf3 e2 Qd2 b2 Bh3+ Kc6 d7 Bf2 Qd1 e1B Qd2 Na3 Ng5 b1N Nh7 Qe8 d8B Ne7 g8B Nf5 Ne2 Na6 Kf3 Nc5 Bg4 Be6 Bh5 Bg7 f8B Nb5 Qc3 d2 Bb6 d1N Bf4 d3 Ba5 d2 Rf1 Ng3 Qe5 Nb1c3 Be7 Bg1 Nf8 Nf2 Ke3 h1B Bf6 Bed5 Be6 d1Q Bfd8 Rh6 Bdb6 Bhf3 Bhg4 Rh4 Ba7 Nfd3+ Rf2 Nc3e4 Bh5 Nc1 B7b6 Nh1 Ng3 Bg2 Be2 Bf3 Bg4 Bf7 Nh5 Neg3 Be6 Bd5 Bh6 Rd4 Ba7 Bh2 Rf6 Nf2 Bf4 Bg1 Bh3+ Kb7 Ra6 Be4 B7b6 Kc6 Bhg4 Bf5 Bh3 Bc8 Bf5 Bb7 Be6 Ba8 Bc7+ Kb7 Nh7 N5b3 Nf8 Nfe4+ Kf3 Rd5 Bcb6 Kc6 Bad2 Bgf2 Bba5+ Bb6 Bde3 Rd4 Bg1 Nf2 Ke3 Nc5 Bd5+
B1KNk3/3nRbq1/1P3Pp1/qb1P3q/1RR1N2Q/4R3/R1q2r2/q2br2n b - - 0 1 illegal: No possible last move, all moves rejected
6b1/rb2PNP1/pqnnQB1N/b2N2N1/q4B2/1n1b1P2/2k1rn1K/N5R1 b - - 0 1 illegal: No possible last move
3KQq1b/1kB1B1pq/1Pbn1P1r/1b2R2N/Pr2qq1B/1B6/2RB4/5r1q b - - 0 1 illegal: Other
3BQ1r1/1R1K2R1/bR3kr1/1PPRq1r1/3b4/pR2n3/b1Pqr2N/4rbN1 b - - 0 1 illegal: No possible last move
3b2Rr/Nnb1p1PP/1Qr1r1n1/R6n/1P3kBp/K4R1q/bR6/1R1nN3 b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 f5 c4 g5 cxd5 h6 h4 Be6 e4 fxe4 b3 Bd7 Qf3 Be6 Qg3 Bd7 h5 Bf5 Qh4 Bc8 Bb2 Na6 Bf6 gxh4 g5 Nb8 g6 Bd7 Bg5 hxg5 Ra3 Bh3 Ra1 Bc8 Kd1 Kd7 Kc2 Kd6 Kb2 Ke5 d4+ Kf4 b4 a5 d6 c5 h6 c4 b6 g4 d5 e3 h7 g3 b7 c3+ Kb3 g2 d7 c2 f3 c1N+ Ka4 e2 d6 e1R Rh2 Bh6 g7 Nd3 Rh3 Na6 b8Q Nac5+ Ka3 a4 Nc3 Nb7 Qc7 Nf6 Be2 Nh5 Qb6 Ne5 Rh2 Ng6 Nb5 Ra6 Na7 Qc7 d8R Qd7 Re8 Qh3 Rb1 Be6 d7 Ba2 d8R Bg5 Bd1 Re6 Rg8 Bf6 Rd3 Be5 Rd5 Bc7 Ra5 Bd8 Qb5 Rac6 Qb6 Kg3 f4 Bc7 f5 Kf4+ Nf3 g1B Qa6 Bgb6 f6 Bd8 f7 Bbc7 Be2 Bb8 Kb2 Bbc7 Ne1 a3+ Ka1 Bb3 Bg4 a2 Kb2 a1N Qb6 Nc2 Rg2 Ne3 Ka3 Ba2 f8R+ Ke4 Rf3 Nd1 Rfb3 Kf4 Rgb2 Nf6 Rg3 Nh5 Rf3+
r1B2q1B/2NP1PN1/2q5/1Q1Pb2q/q1pk4/1BBpr3/1Kb4R/n1nB2b1 b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 d6 e5 d4 f6 b4 Bb7 e4 Ba6 d5 Bc8 Qd4 exd4 e5 f5 Ra3 Be6 Re3 Bc8 Re4 fxe4 Kd1 Kf7 Kc2 c5 f4 h5 g4 a5 b6 e3 f5 h3 g5 c4 f6 a4 b7 e2 b5 e1Q b6 h4 Nd2 h2 Ne4 h3 Be2 a3 Nf2 a2 Ne4 a1B Bb2 Qb4 Nf3 Nd7 b8Q Nh6 b7 Nc5 Bc3 Nf5 Ng3 Nd3 Nh5 Nc1 Bd1 Qa4+ Kb1 d3 Nd4 Ne3 Nb5 Nc2 Nc7 Bd7 e6+ Kg6 f7 Kf5 g6 Ke4 g7 Be7 g8B Qf8 Ng7 Be8 Ba5 Be5 Bc3 Na1 Kb2 Bg5 e7 Be3 Bb3 Bg1 Bh7+ Ke3 Bf5 Rg8 Nh5 Rg3 Bc8 Ke4 Ng7 Re3 Bd1 Bd7 e8B Bg4 Bb3 Bd1 Bb5 Bc2 d7 Bf2 Rd1 h1Q Rd2 Bg1 Rh2 Qf3 Bc6 Qf6 Bb5 Qab4 Ba4 Qc6 Qa7 Qa5 b8B Qaa6 Qc5 Qab5 Rf2 h2 Rg2 h1Q Rh2 Qba6 Qb5 Qf3 Ba7 Qh5 Bad4 Bb1 Bd1 Bc2 Bb3 Qa4 Nge8 Bf4 Bh8 Bd6 Bb4 Bg3 Ng7 Kd4 Bd2 Be5 Bc3+
3qr2q/1NP5/1qp3bn/2n3r1/N1qBNNbN/pk5P/1R1P2r1/K1QR4 b - - 0 1 legal: proof: g4 c5 b4 cxb4 e4 f5 exf5 h5 a3 hxg4 Be2 b3 Bf1 b2 c4 b5 c5 e6 c6 b4 c7 b3 Bg2 Bc5 Bc6 Bb4 axb4 dxc6 f4 Kd7 h3 Kd6 f6 Kd5 f5 Kc4 f7 a5 f8N g5 b5 e5 f6 a4 b6 g3 f7 g2 b7 e4 Qh5 a3 Kd1 e3 Qh6 g4 Qh5 g3 Nf3 Na6 b8N Bg4 Nbd7 Nc5 Ng6 Nh6 f8N Ra5 Nc3 b1B Na4 b2 Nh7 Kb3 Ng5 Re8 Nf4 Bg6 Ne4 b1Q Ra2 Qd3 Bb2 e2+ Kc1 Qc4+ Kb1 Rb5 Rd1 e1Q Qf5 g1R Bd4 g2 Ka1 Qeh4 Qd5 Qhf6 Nh4 Qh8 Qg5 Rf1 Qe5 g1Q Qe7 Rf2 Rc2 Nd3 Qc5 Rg2 Ra2 Qd5 Qc1 Qc4 Rc2 Rg5 Ndc5+ Kb4 Nb7 Kb3 Be5 Qb6 Bd4 Nc5 Rb2+
1RB4r/b1n4n/1q2P1PN/1k2nb2/N1n1P1R1/3r2RQ/R2pn2p/1K1n1R2 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 f4 b5 a4 e5 fxe5 c5 Bd2 cxd4 axb5 Ke7 b6 Ke8 b5 Qc7 Bc3 Qd8 Bb4 axb4 Kd2 f5 Kc1 d5 c4 Kd7 e4 h5 g4 h3 b7 f4 c5 h2 b6 Kc6 g5 d3 g6 d2+ Kb2 d4 Qg4 d1N+ Kc2 d3+ Kc1 b3 Ra2 h4 Qh3 f3 Qf5 h3 Rc2 f2 Nf3 Kb5 c6 Ra3 c7 Nd7 b8R Bc5 b7 Ngf6 Bg2 f1N Nh4 Nfe3 Ra8 Ba7 Rf1 h1N Qf3 h2 Qh3 Ng3 Nf5 Ned5 Nh6 Nh7 b8R+ N7b6 Ra2 Bf5 c8R Nc7 e6 Qd4 Rf8 Qd8 Bf3 Qd4 Be2 b2+ Kd2 Rc3 Rf4 Rb3 Rg4 Qd6 Bf1 Ne2 Rf6 Qc6 Rf7 Qb7 Rff8 Nd7 Nc3+ Kb4 Ra3 Qb6 Na4 Ne5 Rf7 Kb5 Rf6 Nf4 Rff8 b1N+ Kc1 Nd2 Rf6 Nb2 Ra2 Ndc4 Kb1 d2 Ra3 Rb4 Rag3 Rb3 Bd3 Ne2 Rff8 Rc3 Rf6 Kb4 Rff8 Nd1 Rf6 Ncb2 Ba6 Rd3 Bc8 Kb5 Rg5 Bg4 Rf1 Bf5 R5g4 Nbc4 Rb7 Bb8 Ra6 Ba7 Rb8 Rd5 Nb2 Rd4 Ra2 Rd3 Na4
4RRb1/Bqp2P1r/bnP2K2/2qQ2B1/1kPr2R1/rpb5/1qRR3q/6N1 b - - 0 1 legal: proof: d4 a5 c4 e5 g4 exd4 b3 h5 gxh5 f5 Bh3 g5 Kf1 d3 Nc3 d2 Nd5 g4 Nb4 axb4 Bg2 Nc6 Bd5 Ne5 c5 Nc4 Bf3 g3 Bg4 fxg4 bxc4 Kf7 Nf3 Ke7 Ng1 Ke8 Kg2 Ke7 e4 b5 a4 d5 h4 d4 f4 b3 f5 d3 c6 Kd6 e5+ Kc5 a5 b4 e6 b2 h6 b1B e7 b3 e8R Ne7 h5 Kb4 h7 Nd5 f6 Nb6 a6 Bg7 a7 Ba6 h6 Qc8 f7 Qb7 Ra2 Bc3 Rh2 Bc2 Qf3 d1R Bg5 d2 Qd5 Bg6 Rc2 Bf5 Rh4 Bg6 Kh1 g2+ Kh2 g3+ Kh3 Bd3 Kg4 Be4 Nf3 g1Q Rd8 Qc5 Ng1 g2 Rf8 Rd8 a8R Ra1 Rb8 Rd7 Rbd8 d1Q+ Kf4 Ra3 Rg4 Qb1 Rfe8 Rf8 h8B Qb2 Bd4 Bh7 Ke5 Rh8 Kf6 Bg8 Rf8 Rh7 Rde8 Rg7 h7 Rd8 h8R Rh7 Ree2 Rd7 Red2 Rd8 Nh3 g1Q Re8 Qh1 Ng1 Qh2 Qe5 Rd5 Bde3 Rd4 Qd5 Rg7 Bf2 Bh7 Rhf8 Bg8 Bfe3 Rh7 Kf5 Qa5 Bd8 Rd3 Ke6 Na8 Ba7 Qc5 Kf5 Rd4 Bg5 Nb6 Kf6
3kRRn1/NbR1nr1p/2n2B2/2RPr2N/2rRQ3/r5P1/2pb1PK1/b6r b - - 0 1 illegal: No possible last move, all moves rejected
Rr3NK1/2nk1P2/1pb3pb/P1Q4P/4bB1B/2n2bn1/1B1bq3/1B1n1R1B b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Nh3 f5 Nc3 f4 Ng1 h5 Ne4 Ra6 Nf2 Re6 Qb3 Re5 Qd1 Rf5 gxf5 Kf7 Ng4 hxg4 Bg2 Ke7 Bf1 Ke8 Kf2 c5 h4 b3 a4 c4 d4 b6 e4 b2 d6 b1N d5 c3 h5 c2 f6 g6 d7+ Kf7 d6 Ke6 f7 Nf6 e5 Bh6 Bd3 Nd5 Nh3 Qe7 d8B Ne3 d7 Nc3 Bc7 Na6 d8B Bd7 Qg1 Bc6 Bb2 c1B Bb1 Bd2 Ng5+ Kd7 Nh7 Be4 Bb8 Nc7 Qc1 Rf8 Rf1 Qe6 Bh4 g3+ Kg1 g2 Kh2 Qc4 Kh3 Ned1 Kg4 g1N Ra3 f2 e6+ Kd6 e7 f3 e8B Nge2 Ra1 Ng3 Bc6 Qe2 Bd5 Kd7 Qc2 Ne6 Bf4 Nc7 Ba8 Rb8 Ra2 Bg7 Kg5 Bh6+ Kf6 Bc6 Qb3 Be4 Qa3 Bc6 Qc5 Be4 Rh1 f1B Ra3 Bh3 Rf1 f2 Bd5 Bhg2 Nf8+ Kc8 Ba8 Bgf3 Ra2 Bg5+ Kg7 Bh6+ Kg8 Bc6 Rg1 f1B Ra3 Bh3 Rf1 Bf5 Ra1 Bb5 Bd5 Bc6 Ra3 B3g4 Bh1 Bgf3 Rb3 B5e4 Rb5 Nf2 Ra5 Nfd1 Ra8 Bb5 a5 Bbc6 Ne6 Kd7+ Nf8+
nRn2n2/bN2P2N/P1r2pr1/Q1R5/1k1p3P/4nNBK/q2N4/1qq1q2N b - - 0 1 legal: proof: f4 e5 b4 c5 d4 h5 g4 a5 g5 axb4 g6 b6 Bh3 Ke7 Bg4 hxg4 Kf1 Bb7 Ke1 Bd5 fxe5 cxd4 Bf4 f6 Bc1 Bf7 gxf7 Rh5 Bf4 Rh7 Bc1 Rh8 Kf1 d5 Kg2 g5 h4 g3 a4 b3 c4 d3 e4 b2 c5 d4 a5 b5 a6 g4 e6 b4 e5 d2 c6 b3 c7 Rh6 Qe2 d1N Qe3 Rg6 Rh3 Nd7 Ra2 Rc8 Qe4 Ne3+ Kh1 g2+ Kh2 Nb6 Qd5 Na8 Nf3 g1N Ra5 Qe8 Bd2 Ne2 Be1 Nf4 Nbd2 b1Q Bg3 b2 Rc5 Qa1 Qa2 b1Q Qa3 Qaa2 Qa5 Bh6 f8N Qc6 Rb5 Qcc1 Nh7 Bf8 Rb2 Nfd5 Rb8 Ndb6 Be1 Nd7 Bg3 Ke8 e7 Kf7 e8N Ke6 Bf2 Bc5 Bg3 Kd5 e6 Ne7 Nd6 Nf8 Ne4 Kc6 Nf2 Ba7 Nh1 Qe1 Bf2 Kd6 Rg3 Qbc1 Rg1 g3+ Kh3 g2 Bg3+ Kc6 Rf1 g1Q Rf2 Qgf1+ Rg2 Qb5 Rf2 Kc5 Re2 Rd8 c8N Rd6 Rf2 Rc6 Nd6 Nc8 e7 Qcb2 Rh2 Qbc1 Nb7+ Kd5 Ne4 Kc4 Rc2+ Kb3 Rc5 Qd3 Qd8 Qdb1 Ned2+ Kb4 Qa5+
1B1b3N/4R1Pr/1NrQnN1R/4bNb1/6KP/N2prn2/1p1Prk2/3r3b b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 e4 g5 g4 gxf4 axb5 cxb4 g5 h5 Bh3 d4 Bg4 Qd5 exd5 hxg4 Kf2 Kd7 c4 Kd6 h4 Ke5 g6 Ke4 b6 e5 d6 a5 b7 f5 g7 f3 Kg3 f2 c5 f1R c6 f4+ Kg2 g3 d7 f3+ Kh3 d3 c7 b3 Na3 a4 Nc4 g2 Ba3 f2 Bd6 a3 Kg3 a2 d8N Nh6 Rh3 Re1 Ba3 f1R Bb2 Nf5+ Kg4 Nd4+ Kg5 Nd7 b8N Re3 Qc1 Be7+ Kg4 Nc5+ Ne6 Bd8 Rh2 Bb7 c8N Rd1 Nf3 g1B Kg3 Ra6 Na3 Rh7 Kg4 Rc6 Nf4 Nce6 Qc5 Bg5 Rb1 a1B Nd7 Bd8 Ng6 Bg5 Ne1 Nf3 Nh8 Re2 Qe7 Bb6 Qd6 Bbd8 Ncb6 Ba8 Bd4 Bc3 Rc1 b2 Ng2 Bb7 Ne3 Ba8 Kh3 Kf4 Nf5 Bb7 Qd5 e4 Nf6 e3 Rh1 Ba8 Re1 Bb7 Bc5 Be5 Qd6 Rg2 Nbc4 Rc7 Nd4 Nf8 Rc2 e2 Qd7 Nh2 Qc6 Bd6 Nf5 Ba8 Qb6 Kf3 Ng8 Bdf4 Bd6 Bd5 Rh1 e1R Be5 Rc5 Bb8 Re8 Re1 Ba8 Re6 Re2 Rg6 R8e3 Rh6 Be5 Nf6 Ne6 Qd6 Bc6 Nb6 Kf2+ Ng3 Bf3 Nf5 Rc8 Rc7 Bh1+ Ng3 Nf3 Re7 Rc7 Nf5 Rc6 Kg4
bR6/B3K3/2rp1p2/B1Pk2R1/r4Q2/1bR1nR2/PP1pRbnn/3bqN2 b - - 0 1 illegal: No proof kernel
2q3bB/3n2p1/1B3kq1/1nB2bPr/R2N2Bp/bb4p1/1PPQ1R2/K1B1r3 b - - 0 1 illegal: No possible last move, all moves rejected
1kb3QN/b3p2P/5N2/bb1p1n2/1R1qP1r1/N2r4/BpK1n1Pq/2N3BN b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 c5 f4 cxd4 Ra3 g5 fxg5 h6 gxh6 bxa3 Kd2 d5 h4 Kd7 c4 Kc7 e4 f5 c5 b5 a5 a2 c6 a1B a6 d3 h7 b4 h5 f4 h6 f3 a7 f2 Qe2 b3 Qg4 Bfg7 Na3 Qd6 Ne2 Qh2 Bb2 Bd4 Nc1 Bc5 Bd4 Bc3+ Kd1 d2 Bc4 f1B Bg1 Ba5 Qe6 Kb6 c7+ Nc6 Qg4 Rb8 a8N+ Ka7 Nb6 Nd4 Nd7 Ne2 Nf6 b2 Kc2 Bd4 Ba2 Rb3 Qg7 Rd3 Qf8 Bd7 c8N+ Kb8 Nd6+ Bc8 Nf5 Ba7 Ng3 d1Q+ Kb1 Qe1 Kc2 Qb4 Qe8 Qd4 Qd8 Qh4 Rh3 Qf4 Nh1 Qh2 Ne8 Nf6 Re3 Nh5 Nf6 Rg8 h8N Nhg3 h7 Rg4 Qg8 Nf5 Rh3 Rd1 Rc3 Rd3 Rc4 Rdg3 Qe6 Nf4 Rc5 Bb5 Qg8 Ne2 Rc4 Rd3 Rb4
qB6/4pb1r/2NqBP1p/QR5b/2K2RRb/qP5r/3Pp1R1/1r2n1Rk b - - 0 1 illegal: No possible last move, all moves rejected
2q1Bn2/2q1p1b1/1r4q1/B1n1N1R1/r3PbPP/1k3q2/Nr1qBBb1/2B1Q1K1 b - - 0 1 legal: proof: b4 c5 g4 g5 d4 cxd4 f3 b5 a4 h5 axb5 h4 f4 gxf4 Ra3 Na6 Rb3 Nb8 Rg3 hxg3 h4 d5 c4 Kd7 c5 Ke6 e3 a5 b6 f5 b7 a4 c6 d3 c7 d2+ Ke2 f3+ Kd3 d4 b5 Kd5 b6 f4 Be2 f2 Na3 f1R Nf3 g2 Ne1 g1B Bb2 f3 Rh3 f2 Bc1 Nd7 b8B Bh2 b7 Bg7 Nf3 Ngf6 Nb5 a3 Qa4 d1Q+ Bd2 a2 Nd6 a1Q Nc4 Qab1+ Qc2 Nh7 Na5 Nhf8 Ba7 Rh6 b8B Bb7 c8B Qc7 Nb3 Qdc1 Ba5 Rb6 Ne5 Bf4 Rf3 Bc6 Ba6 Re1 Bb5 f1Q Rf2 Qh3 Ba4 Qf3 Bb5 Qc8 Bd6 Rg1 Ba3 Rg2 Bb2 Qf1 Nc1 Nc5+ Kd2 d3 Qd1 Qh1 Qe1 Qh2 Kd1 d2 Ba4 Qh7 Na2 Qg6 Bc1 Bb7 Be8 Bc6 Nd3 Kc4 Ne5+ Kb3 Rf1 Qd5 Rf2 Qdd6 Rf3 Qdc7 Rf2 Bf3 e4 Qh3 Rf1 Rh2 Rf2 Bg2 Rf1 Bfh6 Rf5 Bf4 Rg5 Qd3 Bf3 Qdd7 Ke2 d1Q+ Kf2 Q7d2+ Kg1 Q1e2 Bc3 Qed3 Be2 Qf3 Bb8 Ra4 Ba7 Bh1 Ba5 Rf2 Ba6 Bg2 Bf1 Qdd7 Bd3 Rb2 Be2 Qd2 Bc3 Ncd7 Rf5 Re6 Bf2 Nc5 Ba5 Rb6 Rg5
KQ4qn/1N1Pq1nb/2PN1N1k/3N1bbN/R2Bn1n1/p5n1/P1R3rr/3b4 b - - 0 1 legal: proof: f4 c5 g4 g5 e4 d5 b4 dxe4 bxc5 gxf4 g5 h6 Be2 h5 Bg4 hxg4 Kf2 e5 d4 f5 h4 Kf7 c4 Kg7 h5 a5 c6 b5 c7 g3+ Kg2 e3 Kf3 b4 d5 e2 c5 e1Q g6 b3 d6 a4 c6 g2 Nd2 b2 Rh4 b1B Rh1 a3 Ne4 Be7 Qd5 Kh6 g7 Na6 Rh2 Nc5 Ng3 Nf6 Rh4 Ng4 N3e2 Ne6 Nh3 g1N+ Kg2 e4 Ng3 e3 Bd2 e2 Qb5 Qg8 Qb8 Bg5 Be3 Nf3 Bd4 Bd7 c8N Nd2 Qc7 Bc2 Qb8 Ne4 Kf3 Bd1 Rc1 Ra4 Rc4 Rb4 Rc2 Rb2 Nf2 Qb4 Nd3 Qb7 Nb4 Rh7 Kg2 e1N+ Kf1 f3 Nd5 Nd3 Kg1 f2+ Kg2 Be8 d7 f1N Nd6 Qb4 Nb7 f4 Kh3 Nde5 Kg2 f3+ Kg1 Qgf8 g8N+ Kg7 Ngf6 f2+ Kg2 Nf7 h6+ Kg6 Ngh5 Nfg3 Kh3 Qg8 Kg2 Rg7 h7 Kh6 h8N f1B+ Kg1 Bd3 Kg2 Nfd8 Kh3 Qe7 Nf7+ Kg6 Nfd6 Kh6 Kg2 Nf7 Kh3 Nh8 Kg2 Ne2 Kf3 Bf7 Rc1 Bg6 Rc2 Ngf2 Rf4 Bf5 Ke3 Rg6 Rc3 Bb1 Rc2 Ng4+ Kd3 Ng7 Kc4 N4c3 Kc5 Ng3 Re2 Rc2 Kb6 Nce4 Ka7 Rd2 Ka8 Bd3 Re1 Rh2 Re2 Nef2 Nc7 Bfe4 Rd2 Nf1 Rf3 Be3 Qc8 Ne5 Rf5 Rgg2 Bc5 Neg4 Ncd5 Bg5 Rf4 Bh7 Qb8 Bdf5 Rc2 Ng3 Ra4 Nfe4 Bd4
2bnNBK1/nb4R1/pb1NN3/6N1/q1P3r1/n1qP1R2/Pnk1r3/Qr2b2N b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 h4 g6 h3 Bg2 hxg2 Nf3 fxg6 Ng1 g5 Bb2 g4 Ba3 Rh7 Bc1 Rh8 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 g3 c4 e3 h4 a6 f4 b4 c6 b3 c7 b2 Nf3 g1R Rh2 e2 Ne1 g2 Rh1 Nc6+ Ke4 e5 Nd3 e1N Nc5 Qf6 Kd5 Kf5 h5 g5 h6 e4 h7 g4 Rh6 g3 Qe2 e3 Rh4 Nc2 Rh1 Rb8 Nc3 b1B N5e4 Bb4 Ba3 Na7 Ng5 Nh6 Nd1 Qc3 Rh3 Re8 h8N Nf7 Nf2 Nd8 Qf1 e2 Nhf7 e1N Nh1 Nd3 Qe1 Ba5 Bf8 Nb2 Qd1 Re2 Nd6+ Kf6 f5 Na3 Rh7 Rb4 Rg7 Be4+ Kc5 Ke5 d3 Bf3 f6 Bfb7 f7 Kf4 Ne8 Ke3 Qb1 Kd2 Kd6 Bb6 Qf1 Kc2 Qf6 Bf2 Rf1 Be1 Rf3 Rb5 Qe5 Rb6+ Ke7 Rg6 Nh7 Rg4 Ng5 Rf1 Kf6 g1B Kg6 g2 Kh7 Bc5 Kg8 g1Q Qd4 Bb6 Qf6 Be6 c8N Qh2 Ncd6 Bec8 Be7 Qhe5 f8N Qb5 Nfe6 Qa4 Qd4 Bh4 Qf6 Rb1 Bf8 Be1 Qf4 Ra1 Qe3 Bg3 Qf2 Rg1 Qf1 Bh4 Qa1 Rb1 Nb5 Be1 Nbd6
q1B1bn2/1b2n1Qq/N2kb1N1/1b1rbpN1/3P1R2/5PP1/1N2Npr1/3KBr2 b - - 0 1 legal: proof: b4 e5 h4 a5 f3 axb4 Na3 g5 hxg5 e4 Rh4 e3 Rh2 Ra4 Rh1 Ra8 g3 Ra5 Rb1 Bc5 Rb3 Ra7 Nb5 Bf8 a4 Ra5 Na3 Ra8 Rc3 Qe7 Rc4 Qf6 Rch4 Qd8 c4 d5 R4h2 dxc4 Rf2 Bg4 Qb3 exf2+ Kd1 Bh3 Kc2 Bd6 Kb1 Bf8 Qd1 Be6 Kc2 Bc8 d4 Kd7 e4 b5 a5 c5 g6 h5 e5 b3+ Kd2 c3+ Ke2 h4 e6+ Kd6 a6 b2 e7 b1B g7 c2 a7 h3 Bb2 c1R Qd3 b4 Qc2 b3 Qh7 c4 Nc2 h2 Ne1 c3 Bh3 c2 Bc3 b2 Be6 Ba2 Qe4 b1B Bd5 Bb7 Kd2 Nd7 Nd3 Rf1 Be6 c1Q+ Ke2 Qh6 Nb2 Qh7 Qg4 Bg6 Be1 f5 Kd1 Be8 Ne2 Rc8 a8N Rc5 Qg6 Rd5 Nc7 Qa8 Na6 Bc4 Rg1 h1B Rg2 Bd3 Rh2 Bb5 Rh4 Bg2 Rf4 Bh3 Qg5 Bg4 Qh6 Bgh5 Qf6 Bhf7 Qh6 Ngf6 g8N Bg7 Qg6 Nf8 Bc8 Be6 Qg5 Rc5 Qg6 Nd5 Qh6 Be5 Qg7 Bh5 e8N+ Kc6 Rh4 Ne7 Rf4 Rd5 Nef6 Bhf7 Ne4 Be8 Ng5 Kd6 Nb8 Qh1 Na6 Rh2 Nb4 Rg2 Na6 Nc6 Ne7 Qh7 Ng6 Ne7 Kc2 Qh6 Kc1 Qh7 Kd1
2bBK2B/1Np1pBBB/nr2rqrQ/1R1r4/2q1PPr1/b7/1P6/1bnR1k2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 Nc3 gxh4 Nd5 f4 Ne3 fxe3 Ke2 h5 Kf3 a5 Kf4 Kd7 Kg5 Ke6 Kg6 Ra6 d4 c3 g4 c2 g5 h3 f3 a4 d5+ Ke5+ Kf7 Kf4 g6 Kg3 d6 Kf2 d7 h2 g7 h4 f4 a3 b6 a2 b7 e2 Qd5 e1R Qh5 h3 Ne2 Nf6 g8B Bg7 Qf5 Ng4 Qb5 Rd1 Qc6 Bd4 Ng3 Rh6 Qb5 Ne5+ Kg7 Bc5 Bh7 Ba3 Qb3 Nd3 Kf7 Qh8 Nf5 Rab6 Bd2 c1Q Qc2 Na6 Rb1 a1R Rg1 h1B d8B h2 Rg5 Bf3 Nd6 h1R Rb5 Qd4 Bc3+ Be2 Ke8 Qe5 Nf5 Rg1 Nd6 Rg5 Bh3 Qd4 Bg4 Re6 Bh5 Rd5 B5g6 Rg1 Bf7 Rgg6 Qb3 Qc4 Bh8 Q1c3 Qd1 Q3d4 Qh1 Qf6 Qh6 Bd1 Bg7 Bc2 Rh1 Rag1 Bh8 R1g4 Rd1 Qh4 Bg7 Nc1 Bh8 Rc6 b8B Bb1 Ba7+ Kg2 Bg1 Rb6 Bgd4 Qg5 Bdg7 Qf6 Nb7 Kf2 Rd3 Kf1 Rd1+
5nrB/BR3qn1/2pr3q/4k3/bb2nbBQ/1pP1b2K/PPRNBb2/3B4 b - - 0 2 illegal: No proof kernel
q1n2RRN/1bp3n1/qR4KB/2RrPRn1/3P1b2/2P1Q1k1/1b1b1bp1/3r3B b - - 0 1 legal: proof: g4 d5 f4 h5 a4 hxg4 f5 b5 axb5 d4 f6 d3 c3 exf6 Na3 f5 Nc2 dxc2 Ra5 f4 Ra2 Qd3 Ra1 Qd8 Kf2 Ke7 h4 Kf6 b4 Ke5 e4 f5 d3 a5 b6 g5 h5 a4 b5 g3+ Kf3 g2 h6 a3 b7 g4+ Kf2 f3 Ke3 f4+ Kd2 a2 b6 g3 h7 f2 Qg4 f3 Ke3 Bd6 Qh4 Nc6 b8R Nf6 b7 Na7 Be2 f1Q Qh2 f2 Qh4 Nh5 Kf3 Ng7 Nh3 g1B Bh6 c1B Ng5 Bd2 Qh3 Qe8 Rb1 a1B Rb6 Bb2 Bd1 Rg8 h8R Qc6 Bb3 Rd8 Rf8 Qa1 Bc4 f1N Bd5 Qa6 Rh2 Rd7 Kg4 Bf2 Kh4 Qca4 Rb5 Rd8 Rc5 Q4c6 Rg8 Kf4 d4 Be5 Rg2 Nh2 Nf7+ Kf3 Rg1 Bef4 Nh8 Qe8 Bc6 Rd5 Rf1 Qf8 Qe6 Kg2 e5 Nf3+ Kg4 Ng5 Qd7 Nf5 Kh5 Ng7+ Kg6 Kf3 Qd6 Kg4 Bb5 Qd8 Bd3 Kf3 Be4+ Kg4 Bh1 g2 Rf8 Kg3 Qc6 Bh3 Rf5 Nc8 Qe6 Ra7 Ra8 Bg4 b8R Bf3 Rb6 Qe8+ Qf7 Qea4 Rb8 Rb7 Qd7 Qa8 Qb5 Q4a6 Qd3 Ra7 Qe3 Rb7 Rbf6 Rb5 Rfc6 Ra5 Rf8 Ra1 Rcb6 Rd1 Rg8 Nd6 Rbd8 Nc8 Rdf8 Bfe1 Rd8 Rd7 Qd3 Bfe3 Rb5 Bb7 Rdf8 Rd5 R1f5 Bf2 Qe2 Bf4 Rc5 Q6a7 Qe1 Qa6 Qe3+
Bkn3N1/3n2r1/1RbP1Nrq/2q1R1p1/r3b1Q1/R3bn1p/1PRRK2P/7n b - - 0 1 legal: proof: d4 b5 c4 e5 g4 f5 a4 fxg4 Be3 d5 axb5 dxc4 d5 Nd7 Bc5 Nb8 Bd4 exd4 e4 Kd7 f4 h5 b6 c5 e5 a5 d6 h4 b7 c3 f5 c2 f6 c1N f7 c4 Qe2 g3 Nf3 a4 Qe3 h3 Nbd2 a3 Ne4 a2 Kd2 d3 Qg5 g2 Ng3 g1N Qf4 c3+ Ke3 d2 Ng5 d1B Nf5 c2 Ne4 Qg5 Rb1 a1R Ne7 Rh7 Nd5 Nce2 Ndc3 c1Q+ Kd3 R8a4 Nd5 Qc5 Bg2 Ng3 Rc1 Nf3 Ne7 Qh6 Rc2 g6 Rf1 Nh1 Rff2 Rg7 e6+ Kd8 Nf6 Bd7 Rfd2 Bc6 Qg4 Nd7 Rc3 Rc1 Ra3 Bc2+ Ke2 B2e4 Rc2 Rg1 Rd2 Nb6 b8R+ Nc8 Rb7 Qf4 Rb6 Qh6 Nfd5 Nf6 Ng8 Nd7 Ndf6 Na7 e7+ Kc8 Ra6 Kb7 e8R Nc8 Re5 Kb8 Rc2 Be7 f8R Bd8 Rfe8 Ba5 Rd5 Bd2 Ree5 Be3 Rd1 g5 Rd4 Rf1 Rdd2 Nh4 Ne8 Rf6 Bf3 Rfg6 Nef6 Bf5 Be4 Nf3 Bd5 Be4 Rb6+ Ka7 Bc4 Ka8 Ba6 Ka7 Bb7 Kb8 Ba8+
1RRq4/N2QbBr1/1k1p2r1/3P3n/R1RpP1b1/qn5P/1b2q1nK/1q2BR2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nc3 Nf6 Nd5 Ng8 Ne3 c6 d5 c5 Nf5 Qc7 Nd4 cxd4 Ra4 Qb6 Ra1 Qd8 Kf2 g5 Kg2 f5 c4 a5 e4 a4 b4 g3 c5 g4 c6 d6 c7 Kd7 h3 a3 b6 a2 b5 Ra7 b7 Be7 b6 Nc6 b8R Na5 b7 Nb3 Bc4 f3+ Kf1 g2+ Kf2 g3+ Ke1 f4 Bd3 f2+ Ke2 f1N Kf3 Rh6 Bb2 Ne3 Ne2 g1Q Bc1 g2 Qc2 Rg6 Nc3 Nf6 Bd2 Qb1 Be2 g1Q Nb5 Qgc1 Be1 Qa3 Rf1 Nh5 Ra8 Ng2 b8R Rb7 Ra4 Ra7 Kf2 f3 Kg1 f2+ Kh2 Rb7 Rc4 Ra7 Rh1 f1Q Bd1 Qe2 Rf1 Ke8 Qd3 Bg4 c8R Kd7 Qf3 Rc7 Na7 Rb7 R8c5 Rc7 Qf7 Rb7 Nc6 Kc7 Na7+ Kb6 Rcc8 Qed3 Qe6 Qe2 Qd7 Qbc2 Rc1 a1B Ra4 Qb1 R1c2 Qf2 Be2 Bb2 Bb5 Qe2 R2c4 Qbd1 Qe6 Qda1 Be8 Qb1 Bf7 Bf5 Ra8 Bg5 Be8 Rbg7 Qd7 Bg4 Bf7 Be7 Rab8#
2N3r1/1K2N2b/r5n1/Q1q1p3/RNP1Rb2/1np1PN2/rBP2nr1/2Nkq1q1 b - - 1 2 legal: proof: g4 f5 b4 fxg4 b5 c5 b6 c4 d3 axb6 Bd2 b5 Bc1 b4 Nf3 h5 Bg2 h4 Bh3 c3 Bf1 h3 Bg2 Qc7 Ng1 Qc4 dxc4 hxg2 a4 Kf7 f4 Kf6 Kf2 Kf5 Ke3 g5 Kd4 e5+ Kd5 b5 h4 b3 h5 b2 h6 g3 a5 Kg4 f5 b4 a6 b3 f6 Ne7+ Kd6 Nbc6 Kc7 d5 h7 d4 f7 d3 a7 d2 Rh6 Nd4 Rb6 Rg8 h8N Bf5 Rb5 Bh6 f8N Bh7 Ra3 Ng6 Nh3 g1Q Nf4 g2 Rd5 Qf2 Raa5 g1R Kb7 Rg2 N8e6 Qg1 Qf1 d1N Nd8 Nf2 Nd2 b1Q Nd3 b2 Nc6 Nb3 Ncb4 Qa1 Ra3 b1R Nf3 Rb2 Ra4 Ra2 Bb2 Qe1 Nc1 Kg3 Rd4 g4 Re4 Bf4 Na6 Nd1 Nb4 Qc5 Qh1 Kf2 e3 g3 Qh4 Kf1 Qd8 Nf2 Qa5 Bg5 Ncd3 Ke2 Nc1+ Kd1 Qb5 Rae8 a8N Re6 Qa5 Ra6 Nb6 Bf4 Nc8 Rh2 Nf7 g2 Ne7 g1Q Nd6 Rg2 Ndc8
nr4nq/1Pr3Q1/KRN1N1r1/2q4b/2n1Bp1R/3P3R/n1p2P1k/RRq3b1 b - - 0 1 illegal: No possible last move, all moves rejected
1nq5/p2Rb3/4b1K1/BnprB3/P1B3Pr/R1b1bbNB/1Bk1Q1bP/1r6 b - - 0 1 illegal: No proof kernel
QR2n1r1/1q1Pnr1N/1kpR2R1/2P3b1/1P3nb1/2rp3r/bNR2BR1/4K1n1 b - - 0 1 illegal: No possible last move, all moves rejected
1n1R1BB1/q2rn3/5Rrk/3Rp3/r1pQ1r2/5P2/R1PKPq1b/1N1b1Rqq b - - 1 2 illegal: No possible last move, all moves rejected
rN3Nbn/1Q3b2/2nr3r/2P3Np/r6k/qR1B1KN1/Pb2Np1P/1bq4R b - - 0 1 legal: proof: e4 a5 d4 f5 f4 c5 b4 axb4 exf5 cxd4 f6 g6 f5 g5 Bf4 gxf4 Ke2 Kf7 c4 d5 g4 h5 g5 b5 c5 e5 Bg2 e4 Qc1 b3 Qb2 e3 Na3 f3+ Ke1 f2+ Ke2 b4 Kf3 d3 Kf4 d4 Nf3 d2 Raf1 d1Q Qe2 b2 Qe1 b1B Nd2 b3 Be4 b2 Bd5+ Be6 Bf3 e2 Nc2 d3 Be4 Rh6 Kf3 Bg7 Nd4 Qc1 Rfg1 Qe8 Nf1 d2 Rg3 d1R Qb4 e1R Bd3 Nc6 Qb7+ Nge7 Ne2 Qd7 Rh3 Ng6 Nfg3 Nh8 g6+ Kg8 Be4 Rd6 f7+ Kf8 Bd3 Ke7 f8N Bf7 Ne6 Kf6 Ng5 Qc7 Rh4 Qa5 Rb4 Qa3 Rb3 Bc2 Qb4 b1B Qb7 Bf8 g7 Rd1 Ba6 R1d4 Bd3 Rda4 g8N+ Ke5 f6 Bg7 Ba6 Bh7 Ne7 Bhg8 Bb5 Bfg6 f7 Kf6 f8N B6f7 Nge6 Qf1 Bd3 Qfc1 Nd8 Kg5 Nde6+ Kh4 Ng5 Na7 Nc6 Bb2 Nb8 Nc6 Rb6 R8a7 Rb5 Ra8 Rb3
1N1r2b1/nB4p1/1bq1qb2/2PNk2p/rB1p2P1/2q1BRKB/2BPQ2r/6n1 b - - 0 2 legal: proof: e4 c5 a4 f5 b4 fxe4 h4 a5 bxa5 Qc7 Ra2 Qg3 Rb2 Qxh4 Rb3 Qh2 Rb4 cxb4 g4 Kf7 f4 Kf6 c4 b5 f5 d5 a6 e5 a5 h5 a7 b3 a6 b2 Ne2 b4 Qa4 b3 Na3 b1R Nd4 b2 Qa5 e3 Ne6 e4 Nd8 e2 Qc3+ d4 Nb7 Nh6 Nb5 Qh3 Kf2 Bc5 Qd3 Nc6 Na5 Be6 Nc7 Rhd8 Nd5+ Ke5 f6 Bb6 f7 Nf5 f8B Ng3 c5 Bg8 Be7 e3+ Kf3 e1Q Bg5 e2 Be3 Ra1 Rg1 b1Q Ba3 Qb2 Bb4 Qc3 Qb5 Qh4 Bh3 Qf6+ Kg2 Qe6 Rf1 Ra4 Rf3 Qh1+ Kf2 Rab8 a8B Na7 Bb7 Re8 Rf6 Rbd8 Qd3 Qe4 Rf3 e1B+ Kg2 Qc6 Qe2 Qf5 Kh2 Qfe6 Kg2 Nh1 Kh2 Bh4 Kg2 Ng3 Kh2 Nb5 a7 Bf6 a8B Na7 Kg2 Nf1 Kf2 Nh2 Kg3 Rf8 Ba6 Rfe8 Bd3 Re7 Bb7 Rf7 Rf1 Nf3 Bc2 Ng1 Rb1 Bg5 Rb3 Rf2 Ra3 Bf6 Rb3 Qc4 Rd3 Rh2 Rc3 Q6b5 Rd3 Qc3 Nc6+ Ke4 Nb8 Ke5 Na6 Qbe8 Nb8 Q8c6 Qf2 Bf7 Bh6 Rg8 Rf3 Rd8 Be3 Bg8 Qe2
b3N2K/2brP1n1/4p1NN/2b3Pq/1r1pN3/3PknNb/b1p1Q2R/1R3nB1 b - - 0 1 illegal: No possible last move
1RRkn2K/bpr5/B2RP1b1/qRQn4/1R1nrN1p/2rNb2P/1Pp5/4b3 b - - 0 2 illegal: No possible last move, all moves rejected
1K1RR1N1/1n1Rq1p1/1P1NQ3/1R4P1/4P2b/Rp2b2r/1n1pr1rB/3r1knb b - - 0 1 illegal: No proof kernel
3r4/1NN5/p1P3kB/1b2pNN1/1K1p1RBn/Pn1b1q1Q/b2PN2r/n2r2b1 b - - 0 2 legal: proof: e4 g5 g4 c5 f4 f5 b4 fxe4 bxc5 h6 a3 gxf4 g5 h5 Ra2 Qb6 Rb2 Qh6 Rb3 Qb6 Rg3 Qd8 Rg4 hxg4 c4 Kf7 h4 d5 h5 e5 c6 b5 c5 b4 h6 g3 c7 b3 h7 b2 c6 e3 Rh5 f3 Qb3 e2 Qe3 g2 Nc3 b1B Rh4 a6 Rf4+ Kg6 Nb5 Ne7 Bb2 Nf5 Bd4 Be6 c8N Nh4 Ncd6 Bd3 Nb7 Nd7 Nc7 Qf6 Bc5 Bh6 Bf8 d4 Kf2 e1N Ne2 g1R Bh3 Rd8 Bg4 Nc5 Bg7 Rg2+ Kf1 f2 Qh3 Ba2 Bf8 Rg8 h8N+ Kh7 Nf7 Nc2 Bg7 Rh2 Bf8 Rh8 Bg7 Na1 g6+ Kg8 Ng5 Ncb3 Bf8 Bb5 g7 Qf7 Nf3 Kh7 g8N Kg6 Bg7 Bg5 Nh6 Rhf8 Nf5 Bh6 Re4 Be3 Ng5 Qd5 Rf4 Qf3 Bh6 Rg2 Ng7 Qg3 Re4 Rf3 Nf5 Rh2 Rf4 Ba4 Nc1 Bb5+ Nd3 Qg2+ Ke2 Rg3 Nc5 Qd5 Nb7 Rg1 Re4 Rd1 Rf4 Ba4 Nc1 Qf3+ Kd3 f1B+ Ne2 Bg1+ Kc4 Bb5+ Kb4 Na5 Neg3 Bfd3 Ne2 N5b3 Qf1 Rb1 Qg2 Rd1 Qh3
6K1/1Bpr2Br/Qp2BP2/1n1b3n/pbP4P/2r1N3/2B1BR2/1bNbq1kn b - - 0 1 illegal: No proof kernel
3QrB2/Rp3K2/bP1N2n1/3N3N/2Pb1p1n/1p6/PrkNrnr1/1q2NR1q b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 d4 exf4 b4 cxd4 b5 a6 b6 Be7 Bg2 Bc5 Bc6 Bf8 Bb5 axb5 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 h4 g5 e3 f5+ Kh3 d5 h6 f3 h7 g4+ Kg3 f4+ Kh2 b4 h5 d3 h6 f2 Qd2 f1Q Qe1 d2 Qg3 Kd3 e4+ Kc2 e5 d1N e6 b3 e7 d4 e8N d3 Qh3 d2 Nf6 Bc5 Nf3 Nf2 Qh4 d1R Ba3 Re1 Nh5 Bd7 Nbd2 Bd4 Bf8 Re2 Qe7 Qe8 Qd8 Bb5 Rb1 Qc6 Ne1+ Kc3 Rd1 Ne7 Ra1 Rg8 h8N Nf5 h7 Nh4 Ng6 Nd7 h8N Ne5 Ne7 Neg6 Nf7 Ba6 Nd6 Qe4 Rg1 Qb1 Nd5+ Kb2 Rg3 Kc1 Re3 Kd1 Re5 Qh3+ Kg1 g3 Re8 g2 Re5 Qc3 Kh2 g1R Re8 Qcc1 Re5 Ne4+ Kh3 Rgg2 Re8 Rh2+ Kg4 Nf2+ Kg5 Rb8 Re5 Rg2+ Kf6 Rg7 Qc7 Re8 Qd8 Rg8 Kf7 Rh8 Nd3 Kc2 Rg5 Qh1 Rf5 Qb2 Rf1 Qb1 Ne1+ Kd1 N2e4 Rb2 Nd2 Re2 Nc7 Rg8 Ra5 Rh8 Nd5 Rg8 Bh6 Rge8 Bf8 Kc1 Nef3+ Kc2 Ra3 Bb5 Ra7 Ba6 Ne1+
1k3Rn1/Nn1B3Q/b2q2RR/P3pb2/K2p1r1n/1R2PrR1/2nP2p1/n2n2N1 b - - 0 2 legal: proof: g4 f5 b4 fxg4 c3 a5 Bb2 axb4 Ba3 b3 Bc5 Ra6 Bd6 Ra8 Na3 b5 Nh3 h5 Bf4 h4 Nc4 b4 Na3 e6 Nb1 b2 Ng1 b3 Bg3 Bb4 cxb4 hxg3 a4 d5 f4 Kd7 h4 c5 e3 Kc7 b5 g5 a5 e5 f5 g2 h5 d4 f6 g3 h6 g4 h7 c4 f7 c3 f8R c2 Rf7+ Nd7 b6+ Kb8 b7 c1N Ba6 Nc5 Bc4 Qd6 Ne2 g1N Ra3 g2 Qc2 g3 Kd1 Nf3 Ba6 g1N Rg7 g2 Rh3 Nh4 Bc4 Ngf3 Rg6 Ne1 Nbc3 b1B Bb5 b2 Rhg3 N1b3 Bd7 Na1 Nb5 Ra7 Qd3 Nec2 Rb3 Ra6 Na7 Rc6 Qe4 Rc7 Bf5 Rf7 Bd7 Rf3 Ng1 Rf4 Bc6 Bf5 Bd7 Ba2 Qd3 b1N Kc1 Nc3 Kb2 Ne1 Ka3 Nd1 Qc2 Bb1 Qe4 Bd3 Kb4 Ba6 Qb1 Kc7 b8R Nb7+ Ka4 Nec2 Rf8 Rf3 Rff6 Kb8 Rh6 Ne7 Rfg6 Rf8 h8R Ng8 Qb2 Qb6 Qa3 Rf6 Qe7 Qd6 Qh7 Be6 Rh5 R6f4 Rhh6 Bf5 Bc8 Nf6 Rf8 Ng8 Bd7+
1K2nn1r/2p1r1b1/3k2bq/1p1pN3/QRbb2P1/1Rn3P1/nBP1RR2/3N2R1 b - - 0 1 legal: proof: b4 e5 d4 exd4 g3 a5 Kd2 axb4 Bh3 h5 Ke1 h4 Bg2 g5 f3 g4 fxg4 h3 Qd2 hxg2 Qd3 Be7 Qd1 Bf8 Kf2 Ke7 Kf3 f5 h4 b5 a4 d6 e4 d3 a5 d2 a6 b3 a7 f4 e5 b2 Ke4 f3 Kd5 f2 h5 f1N h6 Nd7 Kc6 d5 h7 Ne3 e6 Ngf6 Nc3 b1B Bb2 Bg7 Ra3 Ba2 Qa1 d1N Nf3 g1B Rb3 Qf8 Ne5 Ne8 Rb4 Bb3 Qa4 Bc4 Rh2 Qf4 Rf2 Nf8 Rb3 Rb8 a8R Qh6 Ra6 Ra8 Rb4 Bd7+ Kb7 Rd8 Ra8 Kd6 e7 Bf5 Ra7 Rd7 Kb8 Bg6 Rb3 Nf6 e8R Re7 Ra8 Nf5 Ra7 Nd4 Rb4 Ne2 Ra5 Rg8 h8R Nc1 Rh7 Na2 Ra8 Qc1 Rh1 Qh6 Rb3 Bh2 Rg1 Rh8 Rc8 Ne8 Re2 Nf2 Nd1 Ne4 Ra6+ Kc5 Rf6 Nec3 Rf4 Kd6 Rd4 Bcd3 Rdb4 Bc4 Rf1 Bg1 Rfe1 Bd4 Rg1 Nf6 Re8 Ne6 Rf8 Ne8 Rff1 Nf8 Rff2
N2BB3/3Kp1B1/rr1B4/3b4/RQbq2rp/p4PbP/Pq3bk1/Rn1B3q b - - 0 1 legal: proof: f4 g5 c4 gxf4 c5 d5 c6 d4 Qa4 f3 Kd1 f2 Nc3 dxc3 Kc2 bxc6 Qb3 c5 Kb1 c4 Qd1 Qd6 Kc2 Qd8 g3 f5 Bh3 f1B Bg2 f4 Bh3 f3 Bg4 f2 Bf5 Nc6 Be4 Ne5 Bd3 Nf3 exf3 Qd6 Ne2 Qd7 Ng1 Qd8 b4 Kf7 g4 Kf6 h3 Kg5 b5 Kf4 g5 Kg3 g6 c5 b6 h5 b7 a5 b8B+ Kg2 g7 a4 Bc7 a3 Bf4 h4 Bh2 Qd4 Ne2 Ra6 Ng3 Rhh6 Ne2 Rhb6 Bg6 Nf6 g8B Be6 Bd6 Ne4 Bb2 Bg7 Qe1 Bd5 Be8 Be5 d3 Nd2 Rg1+ Kh2 Rg6 Nb1 Rg4 Bg3 Nf4 Be2 Qd2 f1R Ne6 Kg2 Nc7 Rg1 Rf4 Bf2 Na8 Bf1 Kc1 c2 Qb4 Kh1 Bgf7 Rg4 Ba4 Kg2 Bfe8 Nc3 Kd2 c1B+ Kc2 Nb1 Re4 c3 Rf4 Bc6 Kb3 c2 Re4 Bf4 Bc3 Qh8 Kc4 c1Q Bd1 Qb2 Bg7 B4g3 Rd4 Bb5+ Kd5 c4 Ke6 c3 Rc4 c2 d4 c1Q d5 Bc6 Rd4 Bb7 Kd7 Bd3 Qa5 Bf1 Ra4 Bc4 Qb4 Qd4 Bf4 Qcb2 d6 Qg8 Kc7 Be4 d7 Bed5 d8B Qe6 Bd6 Qe1 Kc8 Qh1 Kd7
Kn4R1/R6p/R2Pn3/qb1QprrP/N1r1NB1q/q3P3/1n1Rkp1r/7R b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 f5 dxc4 e3 e6 f6 g6 Bd3 Kd7 Bf5 Be7 fxe7 gxf5 Ke2 Kd6 Kf3 Kd5 e8R c5 h4 b5 a4 b3 d4 e5 g4 b4 g5 b2 g6 c3 h5 Kc4 a5 f4 Ke4 f5+ Kf3 b3 g7 c2 a6 Qh4 d5 Nf6 g8R Nfd7 a7 Nf8 d6 Ne6 Rg7 Bd7 Ra2 Bb5 Rg6 Rg8 Nc3 b1N Qe1 Kd3 Ne4 b2 Rg5 c4 Rh3 c3 Rgg3 Na3 Rh1 b1Q Rc8 Qb4 Bd2 c1Q Rg7 c2 Qd1 Qa5 Ne2 Nc4 N2c3 Qca3 Na4 c1R Rgc7 Rg7 Rg8 Nb2 Rc6 Rg5 Ra6 Rc4 Be1+ Qd2 Qa1 Qa5 Bg3 Nd7 Qe1 Rac8 a8R Nb8 R8a7 Rf8 Kf2 f3 Qb4 f4 Qc5 Rff5 Qd5+ Rd4 Kf1 f2 Kg2 Q3c3 Kf3 f1R+ Nf2+ Kd2 Bh2 Rfg1 Ne4+ Ke1 Bg3+ Kf1 Bh2 Rc4 Bg3 Qa3 Bh2 Nd1 Rd2 Nb2 Qc5 Rg4 Ng5 Rc1 Ke4 f3+ Kd5 f2 Bf4 Rc4 Ne4 Rgg5 Qc6 Kg2 Qc5 Kf3 Qd4 R1g2 Qd3 Rh2 Qd4 Be8+ Qc5 Nd7 Kc6 Nb8+ Kb7 Bd7 Qd5 Bb5 Rd4 Ke2 Ka8 Qd8 Rdd1 Qa5 Rd2+
1N1q1QrB/3kP3/K2P1r1p/1n1pb2P/R2n1np1/1rRb1NN1/2p1N3/1b1N4 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g3 axb4 g4 fxg4 d4 e6 d6 Qe7 d7+ Kf7 d5 Nf6 d6 Ng8 Bg2 Qd8 Bd5 exd5 Kd2 Ke6 f4 c5 h4 b5 a4 g5 e4 h6 f5+ Ke5 h5 g3 a5 g4 a6 g2 f6 Ke6 f7 b3 Kc3 c4 Kb4 b2 a7 c3 e5 c2 Rh3 Qg5 Ka5 b4 d8N+ Kd7 Qf3 b3 Nd2 b1R Nf1 b2 Nc6 Na6 Ra4 Be7 Ng3 Bf6 N1e2 g1N Kb5 Ne7 f8N+ Ke8 e6 Be5 Qf1 Nf5 Nd7 Qd8 e7 Rg8 Bg5 Bb7 Bf6 Nc7+ Kb6 Rg6 Bh8 Rf6 Ka5 Rb8 a8N Nb5+ Nab6 Ba6 Qf4 Nfd4 Qf1 Bf4 Nde5 Ra8 Nf3 Be5 Nc3 Nge2 Nd1 Rb8 Qf2 Bc8 Qf1 Bf5 Ka6 Be4 Nd7 Nf4 Nf8 Bd3 Ng6 Kd7 Qf2 Ng2 Nf4 Rc8 Nfe2 Nf4 Qe3 Qc7 Qe4 Rg8 Qh7 Qd8 Qg7 Ra1 Qf7 b1B Qf8 Ra3 Nf5 Rg7 Ng5 Be4 Rc3 Rb3 Nfg3 Bd3 Nf3 Rg8 Nb8+
R6b/r5p1/2q2P1R/nb1Rr1p1/3B1q2/2PprQn1/1p2RRPq/k3KB1N b - - 0 1 illegal: Other
1rN1rN2/2qN1b2/3p1b1K/4pkBn/P3B3/2NP2Q1/p3pPn1/b1Rrq1N1 b - - 0 1 illegal: No proof kernel
qQ1BR3/r2r4/p1kpp1B1/1RpP1b2/n1K1nbNn/B4rP1/2P3B1/B3q3 b - - 1 2 legal: proof: f4 b5 h4 g5 a4 gxh4 f5 e6 e4 Ke7 axb5 Kf6 Nc3 Kg7 Nce2 Kf6 e5+ Kg7 Nd4 exf5 e6 f4 e7 Kf6 Ne6 fxe6 Qe2 Kg6 Qd1 Kf7 Ke2 Ke8 Kd3 c5 b4 h5 b6 d6 g3 Kd7 b5 f3 b7 f2 b6 a6 Rh2 h3 Ra4 h4 Ba3 Nh6 Be2 f1R Kc4 Rh7 d4 Ra7 Qb1 Kc6 e8B+ Rd7 Ra5 Rf3 Rb5 Nf5 Bf1 Bh6 Bg6 Bf4 Bg2 Qf8 Rh1 h2 Nh3 Qe8 Rf1 h1N Nf2 h3 Ng4 h2 Qb4 Nh4 Rb1 Rc7 Rb3 Nd7 b8B Nf2 b7 h1Q Rb1 Nf8 Rf1 Rf7 Bc7 Rd7 b8B Ne4 Ba5 Bb7 Bbc7 Qa8 Bd8 Qg1 Rb1 Qe1 Qb2 Rh7 B5b4 Nd7 Bc3 Nb6+ Kb3 Na4 Kc4 Bh6 Qb3 Bf4 Ba1 Bc8 Rb8 Bd7 Qb2 Be8 Rc8+ Rhc7 Qb8 Bf7 Rb5 Bg8 Be7 Bh7 Re8 Rcb7 Bd8 Rd7 Bh5 Bf5 Bf7 Rab7 Bg6 Ra7 d5+
2Rk2bb/1b1N2rp/3n2p1/rq1Rr2R/1q2P1B1/2RR1p1P/2KBpPQ1/6n1 b - - 0 2 illegal: No proof kernel
2N5/Bn1q1Qpp/1n1Bbp1P/B4B2/3P2nr/3B1K1b/4pRPq/qN1rk3 b - - 1 2 legal: proof: b4 e5 e4 b5 f4 Bd6 a4 bxa4 b5 Bb4 c3 d6 cxb4 exf4 e5 d5 Ra3 Ke7 Re3 Ke8 Re4 dxe4 Kf2 Kd7 h4 Ke6 d3 Kd5 e6 Kd4 b6 a5 h5 c5 e7 c4 e8B c3 h6 c2 b7 a3 b5 a4 b6 a2 Qd2 a1Q Bc6 a3 Qd1 a2 Nc3 f3 Bb5 e3+ Kg3 f2 Qh5 Ra4 Ba6 Nf6 Bd2 c1Q Rh3 Nbd7 b8B Ng4 b7 f6 Be1 Nb6 Bc7 Qd7 b8B Rd8 Bd6 Qcb1 Be2 f1B Qf7 Qbb5 Kf4 Qe5+ Kf3 Qh2 Ba7 Rc4 Ne4 Ra4 Nd2 Kc3 Ne4+ Kc2 Ba5 Rb4 Ng3 Kd2 Nf5 Ke1 Rh5 Qc3 Bb7 a1N Ne7 Nb3 Be4 Nc5 Rf5 Qa1 Rf4 Nb7 Bg6 Qb5 Bf5 Be6 Nc8 Rd7 Be7 Rd4 Bd6 Qd7 Bd1 Rd5 Ne2 Rd4 Nc3 Rb1 Be2 Rd1 Bg6 Re4 d4 Bf5 Ba6 Bc4 Bb5 Bce6 Bd3 e2 Bh5 Ne3 Bg6 Bh3 Rf5 Rg4 Rf4 Rh4 Bgf5 Ng4 Nb1+ Rd2 Ke4 Kd1 Rf2 Ke1 Nc3 Rd1 Kf3 Qa3 Nb1+ Qc3 Nd2 Qa1 Nb1+
2rrNn2/n1k2pB1/5rBN/bPNQbP2/1q5p/1r1p1bNN/1P1p3K/6R1 b - - 0 1 illegal: No proof kernel
n1q2N2/B2p4/3PbrB1/p5r1/q1PK2B1/Bpnp2b1/k1P1Qr2/1rB2N1R b - - 0 1 illegal: No proof kernel
1q1r3b/6R1/3Nk3/Bnp2R1K/p4Qp1/4b1bP/PpPq1R1R/n2RNq1b b - - 0 1 legal: proof: g4 f5 b4 fxg4 e4 g3 e5 a5 e6 h5 Nh3 b5 Bd3 a4 Bf5 g2 Ng1 Ra5 Bg4 hxg4 bxa5 dxe6 Ke2 e5 Ke1 e4 Ke2 Kf7 d4 g5 f4 e5 h3 c5 a6 b4 f5 b3 a7 e3 a8R g3 Kf3 e2 Kg4 e1B d5 e4 d6 e3 d7 e2 f6 b2 Nc3 Nc6 Bd2 Nge7 Ne4 Nd4 Bc3 Bb7 Nd6+ Ke6 f7 Nec6 Ra5 Nb5 Bd4 Bg7 f8R Qb8 Ra7 Na5 d8R Nb3 Nf3 g1B Rc1 g2 Qd2 Bg3 Rf5 e1Q Qf4 Qd2 Rh2 Na1 Rd1 Be3 Ne1 g1Q Bc3 Qf1 Ba5 Bh1 Rdf8 Bf6 Rff7 Rd8 Kh5 Bh8 Rg7 g4 Raf7 Qb6 Qg5 Qc7 Rff2 Qc8 R7f5 Qb8 Qf4
B1KN1rb1/1pBN3p/1b1p3p/P5r1/1pNQ3q/3k1n2/2p2PNP/N1n2R1b b - - 0 1 illegal: No proof kernel
2K1Q1BR/2P3Pp/3rN3/2BP2p1/q1Nbr1p1/2Bb4/b2nn3/NN3bk1 b - - 0 1 legal: proof: e4 b5 f4 d5 exd5 c5 a4 e6 axb5 Be7 b6 Bf8 f5 exf5 g4 fxg4 h4 g5 b4 Bd7 b5 Bc8 h5 Qc7 Ra4 Qd6 Rb4 Qg6 hxg6 cxb4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 a5 c4 f5 b7 b3 d4+ Kb4 d6 b2 g7 a4 d7 a3 Ke6 f4 c5 a2 c6 a1Q c7 f3 b6 f2 Qe1+ Kb3 Bd2 Kc2 Ne2 Kd3 Bc3 Ke3 Nc1+ Kf3 Nb3 Ra4 Bc4 Kg2 Rf1 Nc6 b8N Ba6 d8N Bc5 b7 Nf6 Nd7 Ne4 b8B Nd2 Nb6 Rb4 Kd7 Qa4 Bg8 Bd3 d5 Nd4+ Kc8 Ne2 Na1 Re4 Ne6 Bd4 Nc4 Kh2 Nba3 b1B Ba7 Ba2 Nb1 Kg2 Bc5 Kh2 Rg1 f1B Rg2+ Kh1 Rf2 Kg1 Rf8 Bb3 Bf7 Ba2 Rd8 Rf8 Bg8 Rf6 Qh4 Rf7 Qh5 Rd7 Rf8 Rd6 Qe8 Qd1 Bf7 Qc2 Rh8 Qa4 Bg8
Bq5n/2n1N1P1/bk1BPbb1/4R2Q/2B1n3/2nP4/1r3r1B/KnR1rq1R b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 Nc3 dxc4 Na2 Bd7 axb5 Bh6 b6 Bf8 b5 Bc8 Nb4 axb4 g4 Kd7 e4 f5 d3 h5 Kd2 c5 Kc2 f3 Kb1 h4 g6 f4 g5 f2 b7 Kc7 g7 b3 g6 f3 e5 c3 e6 c2+ Kb2 c4 Bd2 c1R Ne2 h3 Ra2 h2 Ra3 Na6 b8B+ Kb6 Bbf4 Rb8 Ng3 Ne7 g8B Nc7 g7 Ba6 Ra2 c3+ Ka3 b2 Bg5 c2 Bgf4 b1N+ Kb2 Ng6 Bb4 Be7 Bh7 Rf8 Bg2 f1N Bbd6 f2 Ka1 Nfd2 Ba8 f1Q Qh5 Re1 Ra5 c1N Nf5 Ne2 Bg3 Bg5 Ne7 Nh8 Bhe4 Rf2 Bed5 Nec3 Bc4 Nde4 Bgf4 Qg8 Bfe5 Rb2 Bf4 Rf8 Bg3 Rff2 Bge5 Bf6 Bg3 Ka7 b6+ Kb8 b7 Ka7 Re5 Kb6 Bf4 Qc8 b8R+ Qb7 Rc8 Qb8 Rg1 h1B Bh2 Bf3 Rh1 Bd1 Qg5 Bh5 Qh6 Bg6 Qh5 N7b5 Rcc5 Nc7 Bb3 Ne2 Rc1 N2c3 Bc4
1B2n1N1/Qqn2nrR/3B4/3nbr2/8/RrP2PP1/KRq1kr2/B2b1bB1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 f5 exf5 cxd4 Ke2 g4 Kd2 Ba6 Ke1 Bc8 f3 h5 Kd2 g3 Nc3 h4 Ne4 h3 Nf2 gxf2 g3 Bg7 Bg2 hxg2 Ra6 Bf8 Ra4 Bb7 Ra1 Bc8 b4 Kf7 h4 Kf6 h5 Ke5 f6 f1N+ Kd3 a5 Kc4 d5+ Kb3 a4+ Ka3 d3 h6 Kd4 b6 e5 f7 e4 b7 d2 c3+ Kd3 h7 d4 Rh6 e3 Rh2 e2 Nh3 e1N Qc2+ Ke2 Qa2 d3 Qb1 d1B Qa2+ d2 Qc2 Qd7 Ka2 a3 b5 Ra7 b6 Bd6 f8B Ne3 Qb2 Nd3 Nf2 g1R Rh6 Rf1 Qb4 Nd5 Qf4 Ngf6 Ne4 Na6 b8B Rf2 b7 Ne8 Re6 Ne5 Qg4 Nf7 Bb2 Be5 Bfd6 Rf8 h8B Nac7 Rh6 Qc6 Qg6 Bh3 Rh7 Bf1 Nf6 Qb5 Qc2 Qd7 Ng8 Qc8 Kb3 a2 Bf6 Qd7 Bg5 Qc8 Be3 Nh6 Rc1 a1R Bf4 Ne6 Bg5 Rh2 Bd8 Rb1 Bbc7 Rf5 b8R Qa6 Bb6 Rg7 Bg1 Rf2 B8c7 Nf7 Rb6 Qb7 Bb8 N6c7 Ka3 Rg2 Qa4 Bb3 Qa7 d1Q Ra6 Rf2 Ba1 Bc2 Ka2 Rb3 Ra3 Qd2 Rb1 Bd1+ Rb2 Qc2 Bb4 Bd6 Bc5 Be5 Bd6
r1Rqk2K/b2BB1n1/P1q2rr1/2P4R/P4B2/1bqN1b2/B2q1r1Q/6Rn b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 b4 cxd4 bxa5 g5 e4 Qb6 Nd2 Qd8 Ndf3 h6 exf5 gxf4 g5 h5 Ne5 Rh7 Ng4 hxg4 Qd3 Rh6 Qd1 Rh8 Kf2 d5 c4 e5 a4 b5 h4 d3 g6 d4 a6 g3+ Kf3 e4+ Kg4 g2 h5 b4 h6 e3 Kh5 e2 h7 e1Q f6 b3 g7 f3 Kg6 b2 Rh4 b1Q Ra3 f2 Rh3 d2+ Qc2 d1Q Rhc3 d3 Nh3 g1R+ Bg5 d2 Ra1 Bg4 Rd3 Ne7+ Kh6 Nf5+ Kg6 Qb5 g8B Ng3 Rc1 Nh1 Rd5 Bf3 Nf4 Bc5 Kg7 Qc6 Nd3 Ba7 Bh3 f1R c5 Qe5 Bg4 Nd7 Bf4 Qc3 Rg5 Nf8 Ba2 Rg3 Rh5 Rgg1 Ra1 Qc1 Rb1 d1B Qh2 Rf2 Ra1 Q3d2 Rb1 Bb3 f7+ Ke7 Ra1 Qcc2 Rc1 Rg3 Rg1 Ne6+ Kh6 Qcc3 f8B+ Kf7 Bd6 Rf8 h8R Qdf6+ Kh7 Ng7 Bd7 Rg6 Rg8 Qe7 Kh8 Qe8 Bde5 Ke7 Bc7 Rff6 Bd8+ Kf7 Be7 Qec8 Kh7 Q8c7 Rc8 Qd8 Bh3 Ke8 Kh8 Bfd1 Be6 Bf3 Bd7+
2qnB1Nr/nbR5/2Pb1N2/QP1B1r1P/nr6/b1Nn4/2K1N1k1/B2r2b1 b - - 0 1 legal: proof: f4 b5 b4 f5 d4 h5 e4 c5 a4 cxd4 axb5 Rh7 g4 Rh8 Ra3 g6 Rg3 g5 exf5 gxf4 g5 Nc6 Rg2 Nb8 Rg4 hxg4 Kd2 Kf7 c4 e5 h4 d5 g6+ Kf6 g7 a5 h5 Kg5 b6 d3 c5 f3 f6 Kf4 b5 Kg3 f7 e4 b7 d4 Na3 a4 Nb1 a3 Qc2 a2 Be2 a1B Qa4 f2 Rh4 f1R Bb2 Ne7 g8B Rf5 Kd1 d2 Bc4 e3 Ne2+ Kg2 Qb3 g3 Nbc3 Nbc6 b8N Ra4 Ne4 Na7 Nc1 e2+ Kc2 d1R Nc6 Bb7 Bd5 Rb4 Qa4 Qc8 Bc3 Bb2 Qa5 Ba3 Ba1 d3+ Kc3 e1N Ne2 Ng6 Ne7 d2 c6 Ne5 Rf4 N1d3 Kc2 Kh3 N4c3 g2 Bh7 g1B Ng8 Bd6 f8N Nf7 Bg6 Nd8 Nd7 Kh2 Re4 Kg2 Ndf6 Re1 Qa4 d1N Qa5 N1b2 Be8 Na4 Re6+ Kh2 Re4 Rd1 Re7 Kh3 Rc7 Kh2 Bdf7 Kg2 Bd5+
kqR3Q1/1b2B3/4BP1n/2KN1Br1/2PRqn1P/2q1RnR1/3qnq2/1q1r4 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Kd2 f3 Ra5 f2 Ra6 Ne7 Ra1 Ng8 Nc3 f5 Ra5 h5 Nd5 f4 Ra1 f3 Ne3 Bd6 Ng4 Bf4+ gxf4 hxg4 Kd3 d5 e4 Kd7 b4 Kc7 c4 Kb7 h4 g5 b6 a5 e5 g3 f5 g4 b5 a4 e6 a3 f6 g2 e7 g3 e8B a2 Bf7 Na6 Ba3 Nb4+ Kd2 d3 Ke3 d2 Kd4 Nd3 Rh2 Nh6 Be2 f1Q Be8 f2 Nf3 g1N Be7 g2 Ne1 Nf4 Bg4 Ra5 Qc2 d1Q+ Nd3 Qde2 Qc3 Ka8 Bed7 Bb7 Re1 a1Q Rh3 Nf3+ Kc5 g1N Bde6 d4 Nb4 d3 Nd5 d2 Bgf5 d1Q Rg3 Qe4 Re3 Nge2 Qe1 Qh1 Qg1 f1Q Qg2 Qc3 Qg1 Bc8 Qg2 Qdd2 b7+ Kb8 Qg1 Qf2 Qg2 Ka7 b8R Bb7 Rc8 Qhb1 Qg1 Ra1 Qg2 Rg8 b6+ Ka6 Qg1 Qe8 Rd8 Rg5 Rd6 Qb8 Qg2 Bc8 b7+ Ka7 Qg1 Qba2 Rd7 Rd1 Rd8 Qab1 Rd7 Qbe5 b8R+ Bb7 Rc8 Qb8 Nb6 Qcc1 Rd4 Qcc3 Nd5 Ka8 Rh3 Rh5 Qg8 Rg5 Rg3
4n1N1/1K1Q1r1q/5Rnb/4B1Pn/1p3qNr/1b2b1R1/P1RbP3/4RbNk b - - 0 1 legal: proof: c4 d5 f4 g5 g3 e5 h4 exf4 hxg5 a5 b3 a4 Bg2 axb3 cxd5 Qf6 Be4 Qd8 Bc2 bxc2 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 b5 g6 f5+ Kf3 h5 g7 b4 g4 h4 g5 h3 Qd2 c4 Rh2 c3 Qd1 Qf6 Bd2 c1B Na3 c2 Rb1 Ra7 Ra1 Ne7 g8R Bh6 Rh1 h2 Bc3 Be6 Rb1 Be3 Re8 c1B Rf8 Na6 Nc2 Ng6 Rb3 Bcd2 Rf7 Qe7 Rf6 Qh7 Ba1 Nc7 Rd3 Bf2 Ne3 Ne8 Ng4 Bfe3 Rc3 Rf7 Rc2 Kd7 d6 Bb3 Bc3 Kc6 d5+ Kc5 d7 Kc4 Kg2 f3+ Kg3 f2 Kf3 f1N d8N f4 Ke4 f3 d6 f2 d7 Kc5 Nc6 Ng3+ Kf3 f1B d8R Kc4 Rd3 Nh5 Ke4 Kc5 Ne7 Kc4 Nf3 Kc5 Rg1 h1Q Ng8 Qh4 Rg3 Qh2 Ng1 Kc4 Kf5 Qf2+ Ke6 Qf4 Rd8 Ne7 Kd7 Ng6+ Kc8 Kc5 Rdd6 Kc4 Rde6 Kd5 Rb6 Ke4 Be5 Bc5 Rd3 Qg7 Rbe6 Be1 Nh2 Ng3 Rd8 Ke3 Qb1 Kf2 Bc3 Kg2 Ng4 Kh1 Re3 Bb6 Rf3 Be3 Rd1 Rh7 Qa1 Qh8 Rb1 Bf8 Be5 Rh4 Qd4 Bh6 Qd7 Nh5 Kb7 B1d2 Re1 Qh7 Rg3
B3NnKR/1q6/3rP2P/Qb6/1rqBb2P/p1k4b/Bn3RRR/3qb1r1 b - - 0 1 legal: proof: c4 c5 a4 e5 f4 exf4 g4 b5 axb5 h5 d4 cxd4 Nc3 dxc3 gxh5 Qf6 Ra4 Qg5 Ra1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 b4 g5 h4 a5 e4 f5+ Kh3 d5 b6 a4 h6 f3 b7 f2 b5 g4+ Kg3 c2 b6 d4 c5 f4+ Kh2 a3 c6 d3 c7 Kd4 e5 f3 Kg3 d2 Kf4 g3 e6 g2 Kf5 Ne7+ Kf6 Ng6+ Kf7 Qd5 Nh3 g1R Bd3 f1B Nf4 f2 Ra2 Ra4 Bc4 Nd7 b8R Rb4 b7 Nb6 Nh5 Bh3 Nf6 f1B Qe1 d1Q Ne8 Na4 Rh2 Nb2 Bg5 Rh7+ Kg8 c1Q Bb3 Bb5 Bf6+ Kd3 Bd4 Qcc4 Ra8 Bd6 b8R Bb7 c8B Bg3 Qe5 B7c6 Bb7 Rd7 Ra4 Qe4 Ba8 Be1 Ra7 Rd8 Rf7 Rd6 Rff2 Nf8+ Rfg2 Qef3 Rc8 Be4 Rd8 Na4 Rf2 Nb2 Ba2 Qf7+ Kh8 Qb7 Kg8 Bbc6 Qa5 Bb5 Rd7 Bbc6 Rh7 Bb5 Bb6 Kc3 Rh8 Bg6 Be3 Be4 Bd4+
1N3q1n/2PqRB2/pKN1P3/r4b1b/2N2BQr/r5Bq/nNP5/kn5n b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 d4 c5 b4 Qc7 b6 Nh6 b5 Ng8 Ra4 Qd8 Rb4 cxb4 Bb2 Nh6 Bc1 Bc5 dxc5 Ng8 Kd2 Ke7 Kd3 Kf6 Kd4 h5 g4 d5 e4 f3 c6 h3 Kc5 Ke5 b7 f5 c7 d4 g5 h2 b6 h4 g6 h3 g7 b3 Kb5 f4 Nd2 b2 Bd3 b1N Ne2 f2 Ng1 f1Q Ne2 f3 Nb3 f2 Ba3 Na6 b8B Ne7 g8N Rh4 b7 Nb4 Ng3 Na2 Nd2 Ng6 Bf8 Nh8 Bc4 d3 Bh6 Kd4 e5 Kc3 Nf5 Kb2 Nd6 Ka1 Ne7 Be6 Rg1 h1Q Rg7 h2 Rh7 Qf8 Bf4 Qc6+ Ka5 h1N Bb3 a6 Ba7 Re8 b8N Qd7 Nec6 Qh3 Bg3 f1B Be3 Be2 Bef4 Bf5 Kb6 Bh5 Qg4 Re7 Nf3 d2 Ne1 d1R Nd3 Rd2 Nb2 Rd3 Bc4 Re6 Re7 Ra3 Bd5 Ra5 Ndc4 Rd6 Bf7 Rd3 e6 Rc3 Be8 Rca3 Bf7
2nb1N2/P1br2B1/2qQ2K1/1bn2P2/2rBr1N1/qk2PN1p/1BR3N1/1r2q3 b - - 0 1 legal: proof: h4 d5 c4 a5 a4 f5 b4 axb4 d4 e5 Kd2 g5 hxg5 f4 e3 f3 Be2 fxe2 Ra3 Qd7 Rd3 Qe7 cxd5 Kd7 d6 Qd8 d5 Ke8 Rd4 exd4 Kd3 Kf7 Ke4 e1B f4 h5 g4 c5 a5 b5 a6 d3 a7 c4 d7 h4 Kf5 d2 d6 b3 Rh3 b4 Rh2 b2 Rg2 c3 Qa4 d1R Ne2 b3 Rf2 c2 Qd4 h3 Nd2 b1R Bb2 c1Q Nf3 Rh4 Rh2 Be7 g6+ Kf8 g7+ Kf7 g5 Qc6 Qc5 Ba6 Qa3 Qdc7 d8B Bg3 d7 Bb5 Qd6 Qa5 Bb6 Bd8 B6d4 Na6 Rf2 Rc8 Rg2 Be7 d8B Nc5 Rf2 Qa3 g6+ Ke8 Ba5 Bd8 Bac3 Ne7+ Kf6 Rc7 g8N Nc8+ Ne7 Bh2 f5 Re4 g7 Rd7 g8N Rdc1 Qe6 Bhc7 Nh6 Rc2 Ng4 Rcc1 Be1 Rc4 Bec3 Kf8 Kg6 Ke8 Bc1 b2 Qd6 Kf8 Kh5 Kf7 Ng6 Ke8 Nf8 Kf7 Qg3 Ke7 Nf4 Kd6 Ng2+ Kd5 Rc2 Ra4 Bh8 Kc4 Bcg7+ Kb3 Qd6 Rac4 Kg6 Ra1 Ne6 b1Q Bcb2 Qe1 Nf8 Rd1 Bgd4 Rb1 Bhg7
q5k1/2BRq3/2b1bP2/NrRPb3/4Qbr1/P3N1n1/Rn4p1/1NKNbb2 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f6 Be2 f5 exf5 gxf4 g5 Nd7 Bf3 Nb8 Bg4 hxg4 h4 Kf7 d4 e5 Kd2 b5 f6 c5 h5 f3 a3 g3 d6 e4 h6 e3+ Kc2 b3+ Kb2 c4 h7 g2 d7 b4 Qd2 e2 Qd1 e1B Ra2 c3+ Ka1 f2 Bf4 f1B Bc1 c2 Kb2 Ra4 Rh5 Na6 Nc3 Ne7 Nh3 Nf5 Qd2 Ng3 Qe2 Bd6 Qd3 Nc5 Nf2 Be5 Qe4 Qe7 Bf4 c1B+ Kb1 b2 d8N+ Kf8 g6 Be6 Nc6 Nd3 g7+ Kf7 Nfd1 Rb8 h8N+ Kg8 Nf7 Rb5 Nd6 Bcd2 Kc2 Be3 Nc4 b1B+ Kb3 Bc1 Na5 Nb2 d5 Bbd3 Nce3 Bde2 Kc2 b3+ Kb1 Rc4 Rh4 Bh5 Rh3 Be8 Rh1 Bc6 Rh7 Bd4 Bc7 Be5 Nf5 Bcf4 Nfe3 Na4 Kc1 b2+ Kb1 Bf2 Kc2 b1Q+ Kd2 Qbb4 Kc1 Rd4 Nb1 Nb2 Rh2 Be1 Rh6 Kf7 g8R Qa4 Rc8 Rdb4 Rh4 Rd4 Rd8 Rdb4 Rd7 Kg8 Nb3 Qa8 Na5 Rd4 Rh3 Nf5 Rf3 Ng3 Rf2 Rdb4 Rc2 Bg5 Qd3 Rg4 Rc5 Bgf4 Qe4
6N1/RbKQ1Ppb/P1B2q2/1r4n1/n1n1rN1k/2NRn1Rb/1P6/3r2Nb b - - 0 1 illegal: No proof kernel
8/7B/1r1n3n/1B1B1n2/1pqP1r1q/bN1r1RP1/KP3rnQ/NN1b1k1B b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 d3 Qe7 Nf3 Qd7 Ng1 Qd8 a4 Nd7 Bd2 Nb8 Bc3 Be7 Bb4 Bf8 Ra2 axb4 Ra3 bxa3 Kd2 Kd7 Kc2 Kd6 Kb3 Ke5 e4 Kd4 e5 Ke3 g6 Kf2 g3 b5 d4 h5 d6 c5 a5 f5 g7 h4 d7 c4+ Ka2 c3 e6 c2 a6 c1Q a7 h3 e7 f3 e8B h2 Nd2 f4 Nb3 Nc6 Bh5 Nh6 g8B Ne7 Na1 Qc4+ Qb3 Nef5 Nc2 Qh4 d8N Rb8 a8B Rb6 Kb1 a2+ Kc1 a1R+ Kd2 Ra3 Qa2 Rd3+ Kc1 Ba3 Kb1 b4 Bgd5 Rf8 Ne2 Bb7 Rg1 h1N Nc3 Bc6 Bg6 Ba4 Na1 Bd1 Nc6 Ke1 Na7 f2 Qb3 f3 Nc6 Rf6 Be2+ f1R Bh7 Nf2 Ka2 Ne4 Na5 f2 Nb1 Ned6 Bac6 Ne7 Bef3 Rf4 Bb5 Nef5 Rg2 Rh1 Bfe4 f1N Rf2 Rh2 Bh1 N1e3 Rf3 Ke2 Nb7 Rf2 Nc5 Qc1 Qa4 Qc4+ Ncb3 Kf1 Qa7 Ng2 Qe7 Qh5 Qh4 Qg5 Qh3 Qh4 Qh2
5n2/qPP1b1n1/2Q2pb1/rR1bb1qr/1P1qNk2/6B1/BB3N1q/2NBK3 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 Nh6 f5 Ng8 f6 Qb6 Bg5 Qc7 Bc1 Qd8 g4 exf6 g5 Ba6 g6 Bc8 gxf7+ Ke7 b4 h5 Ra3 Qc7 Rg3 Qd8 Rg4 hxg4 h4 Kd6 c4 Ke5 e4 a5 c5 d5 b6 g5 h5 a4 b7 g3 h6 d3 c6 d2+ Ke2 g2 c7 a3 h7 d4 Rh2 d3+ Kf2 g4 Rh1 a2 Qf3 d1Q Ne2 a1B Nbc3 d2 Rh5+ Bf5 Rg5 Qc2 Nd1 Bd6 f8B Ne7 Bh6 Nd7 Ba3 Ra6 Nc1 Ra5 Bc4 Nf8 Ba2 g1Q+ Ke2 Bc3 Bb2 g3 Qh1 Kf4 e5 g2 e6 Bg6 Rb5+ Ke4 Bg5 Nf5 e7 Bce5 Bh4 Qa7 e8B Bc5 Bef7 Qd4 Bg8 Ng7 Bgb3 Kf4 Ba4 g1Q Qc6 Qf5 Nf2 Qh2 Bc2 d1B+ Ke1 Bf3 Bd1 Nd7 Bc3 Be7 Bb2 Re8 h8N Bd5 Nf7 Rh8 Nd6 Qg5 Nde4 Nf8 Bc3 Rh7 Bb2 Rh5 Bg3+
Bnb2bR1/pn1r1b1B/2P2q2/3r2Br/2KQPN2/1BN1bqrP/3k4/6N1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 g5 g4 h5 d4 cxd4 Qd2 Nf6 Ra3 Ng8 Rg3 Nh6 fxe5 Ng8 Qf4 gxf4 g5 Ba6 Rg2 Bc8 Rg4 hxg4 Kd2 Ke7 Kd3 Ke6 e4 d5 c4 f5 c5 g3 c6 f3 b6 g2 b5 f2 g6 f4 h3 f3 b7 Nf6 g7 Rh5 b6 Ne8 Bb2 Qf6 Nc3 Nd6 Be2 f1B Bc1 f2 Bg5 Qf3+ Kd2 Qf6 Ba6 d3 Ke3 d2 Kd4 Bc4 g8B+ Qf7 Kc5 f1Q Bh7 d1R Rh2 d4 Kb4 Nd7 b8N d3 Bb7 d2 Na6 Nb8 Rh1 Q7f6 Nc7+ Ke7 Kc5 Bf7 N7d5+ Ke6 Rh2 Q1f3 Kb4 Nd7 Kb3 Rb8 Ba8 Rb7 Rh1 Nb8 Kb4 Rd7 b7 Rf1 Rh2 d1R Nf4+ Ke7 e6 Rd5 Kb3 Rfd1 Kb4 R1d3 Rh1 Nb5 Kc4 Kd6 e7 Ke5 e8B Nd6+ Kb3 Kd4 Kb4 Bg8 Bf7 Ke3 Rh2 Kd2 Kb3 Na6 b8Q Nb7 Qe5 Nb8 Kc4 Re3 Be6 Bf7 Qd4+ Rd3 Nge2 g1B Rg2 Be3 Ng1+ Qf2 Bh6 Qe2 Rg8 Qf3 Bg5 Bf2 Na4 Qg2 Bg4 Qf1 Nc3 Qd1 Qc5 Rg3 Be2 Be3 Qd4+ Kc1 Bd3 Qf3 Be2 Kc2 Bd1+ Kc1 Qb6 Kd2 Bb3 Nd8 Qc5 Nb7 Qd4+
1B1R2NB/K1Nr2q1/QN2n1r1/1rP1rk1q/4BP2/1Pn1Bp1b/8/rn4q1 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 h5 Nh3 f5 Qe1 f2 Qd1 f4 Ng1 f3 Ra6 Ba3 Rg6 Bd6 Rg4 Bf4+ gxf4 hxg4 Kd3 Kf7 Kc4 Kf6 Kc5 g5 e4 a5 c4 d5 h4 g3 b3 g4 b6 g2 e5+ Kf5 h5 a4 h6 a3 h7 d3 e6 a2 e7 a1R e8N d2 b7 g3 Nc3 d4 Ne4 d3 Ng5 Qd5+ Kb6 Nc6 b8B Nd8 c5 Nf6 Be2 f1Q Ne6 Ne4 N6c7 Ne6 Bb2 R8a5 Nb5 Nc3 Rh2 Nb1 Nf6 Re8 h8B Re7 Qe1 d1R Bd4 d2 Ng8 Qe5 Be3 Qg7 Nc7 Rb5+ Kc6 Qf2 Qf1 Re1 Bd1 Rd7 Ne2 g1Q Nc3 g2 Na4 Qh4 Nb6 Qh5 Be2 d1N Bd3+ Kg4 Be4 Ndc3 Bd5 Kf5 Qe2 Rb4 Qa6 Rb5 Rh3 Qf2 Rh1 g1R Rh2 Qf1 Rd2 Rg6 Rd4 Qg1 Rd3 Rd8 Rd4 Bd7+ Kb7 Bc8+ Ka7 Rd7 Bd2 Re5 Ba8 Bb7 Be3 Be4 Rd6 Bd3 Rd4 Bf1 Bb7 Bh3 Rd3 Rf7 Rd8 Rd7 Be4+
R2B3b/p1Bq1q1k/1nqPB1b1/3P2Bn/2b5/1NbNPb2/5rbK/1Q1N4 b - - 0 1 legal: proof: f4 d5 d4 e5 h4 exf4 a4 g5 c4 gxh4 cxd5 Kd7 b4 Ke8 d6 Na6 d5 Rb8 Ra2 Bh6 Rc2 Bf8 Rc6 bxc6 Nf3 Nh6 Ng1 Rb5 axb5 Ng8 Kf2 h5 g4 f5 Kg2 Kf7 b6 Kg7 g5 h3+ Kh2 f3 g6 h4 b7 f4 b8B c5 b5 c4 e3 c5 b6 f2 b7 c3 Be2 f1B Bh5 f3 Bc7 c2 b8B f2 Nc3 c4 Bd2 c1Q Be1 Nf6 Ne4 c3 Bf3 c2 Qe2 Bf5 Nd2 Qd7 Qd1 Nh5 Be2 Nc5 Bd3 Na4 Ba6 Bc4 Nb1 f1Q Nd2 Nb6 Bd8 Kh6 g7 Bg6 g8N+ Kh7 Ne7 Bg7 Nc6 Qff7 Bg5 Bc3 Nb3 Rf8 Ne2 Bh8 Ba5 Bc3 Kg1 h2+ Kg2 Bh8 Nb4 Bc3 Rg1 h1B+ Kh2 h3 Bc7 Bg2 Bc8 Bf3 Rg4 Bh8 Nc3 Bg2 Kg1 Bf3 Nd3 h2+ Kf2 h1B Kg1 Bhg2 Kh2 Qb1 Re4 c1B Re8 Qc2 Qf1 Ba3 Qb1 Bb4 Nd1 Bbc3 Rd8 Qde8 Be6 Qed7 Na1 Qca4 Ra8 Qac6 Nb3 Re8 Bg4 Re4 Be6 Rd4 Nf4 Rd2 Nd3 Rf2 Bcd8 Na4 Bac7 Nb6 Bf4 Qa4 Bh6 Qac6 Bhg5
R4R2/1bBB4/r4PPK/3qrBP1/1p3Rq1/rbkRq2n/Q1q1b3/N5b1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 g4 Nh6 h4 Nd7 h5 Rb8 Nc3 Ra8 Nce2 Ne5 Nf4 gxf4 g5 Ng6 hxg6 Ng8 Ke2 Kd7 a4 Kd6 d4 e5 f6 h5 a5 b5 a6 c5 a7 c4 Kd2 f3 Ke3 f2 Nf3 c3 Ba3 c2 Ra2 c1Q+ Rd2 h4 Qb3 h3 Bg2 f1B Rh2 Bb7 Qa4 Qc4 Bh1 Nh6 Rhe2 h2 Rf2 Be2 Rd3 Ng4+ Kd2 e3+ Ke1 e4 Qb3 Rh3 Rf1 Nf2 Qa2 Be7 Bc1 b3 Nd2 b2 Nb3 b1Q Na1 b4 Bg2 Rg3 Bh3 h1B Bf5 Nh3 Rf4 Qbc2 Bb2 Bhf3 Bc1 Bd1 Bd7 e2 Be3 Ng1 Kf2 e1R+ Bd2 Bfe2 Bc1 Rc8 a8B Rc6 Bf5 Ra6 Bb2 Bc8 Bc6 Bb7 Bcd7 Rf3+ Kg2 e3 Kh2 Nh3 Kg2 Rff1 Kg3 Rf3+ Kg4 Qg8 Kh5 Qe6 Be4 Qg4+ Kh6 Bd8 Bef5 Bb6 Qb1 Qd2 Bc1 Bb3 Qa2 Qdc2 Bd2 Bf1 Bc1 e2 Be3 Ba7 Bf2 Re3 Bg3 Re5 Bh2 Rc1 Bg3 e1Q Bh2 Be2 Bg3 Kc7 d6+ Kb6 d5 Kc5 Qb2 Qb1 Rf2 Rc3 Ba4 Qd2 Qa3 Bbd1 Qa2 Re7 Be5 Rb3 Rf4 Ra3 Bb5 Bb3 d7 Ba8 d8R Bb7 d6 Qd5 d7 Qbc2 Ra8 Qdc3 Bc7 Re5 d8R Qcd4 Be8 Kc4 Rd1 Kc3 Bed7 Q4e4 Rdc8 Bg1 Rf8 Qe3 Rd3+
2r5/5qkB/3PR2R/NrRn2N1/Qq3b1P/1b1n1nb1/1pP2N1p/5qNK b - - 0 1 illegal: No proof kernel
2q3R1/1nB2QN1/2p2B1R/bP3r2/r1P1Kp1R/P1r3qB/1nn1b3/k2n3R b - - 0 1 legal: proof: f4 a5 d4 e5 dxe5 g5 fxg5 h5 g4 hxg4 c4 b5 b3 b4 Qc2 a4 Nc3 bxc3 Qd2 a3 Qb2 axb2 Kf2 Ke7 Ke3 Ke6 h4 b1N g6 d5 h5 f5 b4 c6 a3 f4+ Kd3 c2 e4 g3 g7 g2 b5 d4 h6 Ra4 h7 Nd7 Rh6+ Ngf6 g8R Nc5+ Ke2 d3+ Kf3 d2 Rg5 d1N Rf5 Nbc3 Bb2 c1R Ne2 g1Q Bh3 Nb7 Ng3 Bb4 Nh5 Rf8 h8B Ba5 Bg7 Qg6 Rb1 Ng4 Bf6 Nge3 Ng7+ Kd7 e6+ Kd6 e5+ Kc5 e7 Kd4 e8R Nc2 Ba1 Nb2 Rfh5 Ncd1 Rh4 Kc3 e6+ Kb3 e7 Ka2 Be5 Rf5 Ke4 Qg3 Rg8 Be6 e8Q Qc8 Bb8 Bf7 Qf8 Bh5 Bc7 Be2 Qe8 Nd4 Qd7 Rc3 Qf7 Nc2 Rc1 Nde3 Re1 Ned1 Rh1 Nd3 Bb2 Kb1 Bc1 Ka1 Be3 Nb2 Bd4 Qb8 Bde5 Qc8 Bf6
4R2n/q1b2RP1/B2p4/1P2N1q1/BkPrnb2/r3RBq1/1K3B1p/2Q1n2q b - - 0 1 legal: proof: d4 b5 f4 g5 a4 c5 axb5 cxd4 f5 g4 f6 exf6 Ra4 f5 Ra1 f4 Nd2 Bh6 Ndf3 gxf3 g4 Bb7 h3 Bd5 g5 Be6 Bg2 Bg7 Bf1 Bg4 hxg4 Bf8 Kd2 Ke7 e4 Kd6 b4 h5 c4 a5 Kc2 f5 g6 a4 g7 a3 b6 h4 g5 f2 g6 f3 b7 d3+ Kb1 h3 b5 Kc5 e5 a2+ Kb2 d2 e6 h2 e7 f4 e8B Nf6 g8B Bd6 g7 Ra3 Qb3 d1N+ Kc2 Nc6 b8R Rh4 Bd2 Bc7 Bg2 f1Q Rc1 a1B Bh5 f2 Be1 f3 Ra8 d6 Qa4 Rd4 Rb8 Ne4 Kb1 Ne7 Bh7 Ng6 Rc3 Nb2 Kc2 Qg5 Re3 Nd3 Re8 Nh8 Bf5 Bc3 Bc8 Bd2 Ba6 Qe2 Bg4 f1Q Bf2 Ne1+ Kb2 Qd3 Qc2 Kb4 Qc1 Qfe2 Re7 Qd1 Rf7 Qa4 Bh5 Nf6 Re8 Bf4 Bg6 Qe3 Bc2 Ne4 Bb3 Qa5 Ba4 Qg3 Nh3 Qb6 Ng5 Qa7 Rf1 Rd1 Rfe7 Rd4 Nf7 Qg5 Ne5 Qd3 Bh4 f2 Bf3 Qe3 Rf7 Qd3 Rh1 f1Q Bf2 Qfg2 Rg1 Qh1 Rg3 Qe3 Bg4 Qef3 Bh5 Qfg2 Re3 Q2g3 Bf3
1B2nq2/1k1Br2r/1B2P3/4P1KQ/4PBN1/q1R1pp1b/R1qn1r2/3rn1R1 b - - 0 1 illegal: No proof kernel
N1NR1qr1/r3q1p1/3P1r2/1P3nKn/1P2BQbN/5N2/R1pq3R/nk2r3 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 b3 f5 Bb2 h6 Kc1 f4 Be5 f3 Bf4 Bd6 Bg5 Bf4 gxf4 hxg5 d4 Ke7 Kd2 Kd6 Ke3 Kd5 h4 a5 b4 c5 f5 a4 h5 g4 Kf4 a3 h6 g3 h7 g2 f6 a2 e3 c3 f7 c4 f8R c2 Rh4 c1Q Na3 c3 Qd2 c2 Bd3 f1R Rh2 f2 Nf3 g1R Nc4 Ra7 Nd6 Qe7 Rd8 Bg4 Nc8+ Nd7 Be4+ Kc4 d5 Kb3 d6 Ndf6 Kg5 Nh6 Qd4 Rg8 h8N Qd1 Ng6 Nf5 Ngh4 Qd2 Qe5 Re1 Qf4 Kb2 Bb7 f1Q e4 Rf8 e5 Rg8 e6 Qff2 Be4 Rgf1 Rc1 a1N Rd1 Qe8 e7 Nh5 Rc1 Qf8 e8N Qfe2 Nc7 Rf2 Rb1+ Ka2 Rb3 Qee3 Ra3+ Kb1 Ra2 Qee2 Bb7 Qe5 Be4 Qee7+ Kg6 Rff1 Na8 Rg1 Qg3 Ne3 Nd4 Rgf1 Qe5 Rf5 Ndf3 Rf6+ Kg5 Nf5+ Qf4
bnK4R/RP1n2Bb/2QP4/3Bb2R/2B2rpn/q1R1P1p1/7N/2kn1n1n b - - 0 1 legal: proof: a4 a5 d4 d5 c4 h5 g4 b5 axb5 hxg4 e3 Ra6 Na3 Re6 f3 Re4 fxe4 dxc4 d5 e6 Nc2 e5 Nd4 exd4 Ke2 Kd7 h4 Kd6 b4 Ke5 h5 g5 h6 c5 d6 f5 h7 a4 b6 g3 Kf3 a3 b5 a2 b7 g4+ Ke2 c3 Kd3 f4 Kc4 d3 b6 d2 Kb5 c2 Ka5 c4 Rh2 c3 Nh3 f3 Re2 f2 Bg2 f1B Re1 Bf5 Nf4 Nf6 Qf3 d1N Ne2 Bg7 Nd4 Rf8 h8R Bh7 Ne2 Nfd7 Bh3 Bg2 Ng1 Rf4 Bb2 c1N Re2 Qe8 Rc2 Ne2 Kb5 Bh1 Bf1 Nd4+ Ka5 Bg2 Bc4 Nf5 Kb5 Nh4 Rcc1 Na6 Kc6 Nab8+ Kc7 Qe7 Kc8 Qg5 Rab1 a1N Rc2 Nb3 Ra1 Qf6 Ra7 Nd2 Bd5 Nf1 Rc1 Na6 b8R Qe7 Rbb7 Nab8 Rc7 Qf6 Rc5 Qf7 Bc4+ Qd5 Rca5 Qb5 Bd5 Qb3 Ba1 Qa3 Rb5 Kf6 e5+ Kf5 e6 c2 e7 Be5 e8B Bh1 Bef7 Bg2 Rcb1 c1N R1b3 Nd3 Rc3 N3f2 Bc4 Nh1 Qc6 Be4 Nf3 Bd5 Nh2 Ke4 Qc7 Ba8 b7 Bg7 Rh5 Bd4 Rc2 Be5 Bcd5+ Kd3 Rc3+ Ke2 Qc6 Kd2 Bc4 Rf2 Bfd5 Rf4 Rd3+ Kc1 Bd4 Kc2 Rc3+ Kb1 Bb6 Kb2 Bd8 Kb1 Bf6 Kb2 Bg7 Kb1 Rb3+ Kc1 Rc3+
q2n4/1P2n2K/p6N/1qr1P2Q/N1n1PkpR/nr2R3/1B1b2N1/2nnR1N1 b - - 0 1 illegal: No possible last move
bR6/2Bb3N/nK1nk2R/2Q3rr/4P1pp/1P1rPBR1/4b2b/r1Br3B b - - 0 1 legal: proof: g4 c5 a4 b5 d3 bxa4 g5 e5 g6 c4 Qd2 e4 dxe4 fxg6 Qd3 g5 Qd1 g4 h4 g5 b3 g3 Nd2 c3 Nc4 g4 Nb2 Qg5 hxg5 cxb2 Kd2 Ke7 Kd3 b1B Kc4 a5 Kc5 d5 c4 h5 f3 g2 g6 a3 g7 a4 Qc2 a2 Kb6 a3 c5 d4 c6 d3 c7 d2 Nh3 d1B Nf2 g1R Qc5+ Ke6 Bg2 Ne7 g8R Bd7 c8B Ra5 Bb7 Na6 Rh4 Nf5 Bh1 Bd6 Rb8 Rh7 Rh3 Bh2 Rg3 Bd3 Rb1 a1R Rb2 a2 Rd2 B3c2 Rd6+ Ke7 Rh6+ Nd6 f4 h4 e3 Nb4 f5 Rg7 Nh3 Bd3 Bc6 Bb5 Ng5 Na6 Qd4 Bf3 Bd5 Bbc6 Bc4 Ba8 Nh7 Rc5 Bf1 Be2 Bfg2 Rc3 Nf6 Rd3 Qd5 Rgd1 Bf3 Rb1 Qc4 Rb2 Qc2 Rd5 Qc5 a1R Nh7 Rbd2 f6+ Ke6 f7+ Rg6 Nf6 Rh5 f8B Rd3 Be7 Bb7 Bd8 Rgg5 Bc7 Ba8 Nh7+
6RN/1r2rp1p/1B3R1b/nK3RnN/P1nb1Q1N/bn1bP3/N4kP1/2b5 b - - 0 1 legal: proof: e4 b5 h4 d5 exd5 g5 c4 bxc4 b4 gxh4 b5 a6 b6 e5 Be2 e4 Bg4 e3 Be6 e2 Bd7+ Ke7 Bb5 Qe8 Ba3+ Kd8 Bc1 Qe3 fxe3 axb5 Kf2 Ke8 d4 Kd7 a4 e1B+ Ke2 c5 b7 c3 Kd3 c4+ Ke2 b4 d6 Ke6 d5+ Kf5 d7 Kg4 d8N Kg3 d6 h3 d7 h2 Nh3 c2 Bb2 c1B Ne6 c3 Kd3 b3 Kc4 c2 d8R Bh6 Ba3 b2 Qd5 Bc3 Rd1 h1N Re1 Bd4 Nf8 Nf6 Kb5 Ra7 Rf1 Nfd7 Rf6 Nc6 b8N Nde5 Qc4 Re7 Ng5 Na5 Nf3 Bf5 Nc3 b1N Bc5 Bd3 Ng6 Ba3 Na2 c1B Rg8 Kf2 Nd7 Ng3 Bb6 Ne4 Rf5 Ng5 Nf6 Nd2 Nh5 Ndb3 Rb1 Be4 Qc7 Nec4 Qf4 Bd3 Ra1 Bd2 Rg1 Bdc1 Rf1+ Ke2 Rd8 Rhe8 Nh8 Rb7 Rf6 Ree7 Rg8 Bc2 Rg1 Kf2 Rd1 Bdb2 Rd5 Bd4 Rdf5 Bd3 Nh4+
R7/rr2NRP1/2q1b1pK/1p1r2P1/1PN1r1R1/b1k5/Q2r3N/qBb1b2N b - - 1 2 legal: proof: h4 e5 a4 b5 c4 Na6 f4 exf4 h5 Nb4 a5 Ne7 Qb3 g6 h6 Nf5 Qd3 Ng7 Qd5 c5 Qd6 Nd5 hxg7 Nb6 d3 Qf6 Bd2 Qg5 Bc3 Qd8 d4 cxd4 axb6 dxc3 Qd2 Ba6 Qd1 Bc8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 e4 h5+ Kf3 d5 g4 f5 g5 a5 b7 c2 b8R c1B b3 h4 c5 h3 c6 a4 c7 a3 Be2 d4 Rh2 d3 Nd2 Kd4 e5 a2 e6 Qd6 e7 Kc3 e8N Be6 c8N Ra7 Nf1 d2 Rg2 h2 Ra8 h1Q Ng3 Rh2 Bd3 Qc6+ Be4 Bfa3 b4 Rh4 Qa4 d1R Ned6 Rd5 Nc4 Rg4 Rb1 a1B Ne7 Ba1b2 Ra1 Bd2 Bc2 Bbc1 Bb1 Be1 Rf8 Rb7 Rf7 Ra7 Nf1 Rh4 Nh3 Qg1 Rg4 Qd4 Kg2 f3+ Kh2 f2 Kg3 Rb7 Nh2 f1R+ Nf2 f4+ Kf3 Rg1 Nh1 Rg2 Qa8 Qa7 Ke4 f3 Ra2 Rgd2 Kf4 R5d4+ Ke5 f2 Kf6 Rd5 Ra1 Qa4 Qa7 f1R+ Qf2 Qd1 Ra2 Bab2 Ra8 Rg1 Qa7 Qa4 Qa5 Qa1 Qa2 Ba3 Rff8 Bc8+ Kf7 Bd7 Kg8 Be6+ Rf7 Rg3 Rd4 Re4 Kh7 Rgd3 Kh6 Rdd7 Rf4 Rdc7 Rd7 Rd5 Rg4 Ra7 Nc8 Rcb7 Rf7 Qd7 Ne7 Qe8 Ne3 Qc6 Nc4
1B1k4/7N/qP1q2rp/3nR3/3r1QP1/NnppN1Rr/nRRPb1K1/b7 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 b4 c6 b6 Ba6 b5 Bc8 c4 cxb5 c5 Qc7 Be2 Qd8 Bc4 bxc4 Kf1 a5 f4 d5 g4 e5 f6 a4 f5 e4 c6 h6 c7 a3 Bb2 d4 Rh3 e3 Ra2 e2+ Kg2 e1Q Rb3 h3+ Kf3 h2 Bc1 h1R Rab2 a2 Na3 a1N Rb5 Ra4 Kg2 Ne7 Qf3 Nb3 Ne2 Nbc6 Nf4 Rg8 Nd5 Rg6 Qf4 Nb4 Ne3 Na2 Re5 Ba6 c8R Bg7 f7+ Kd7 f8R Nd5 f6 Rh3 f7 Qe2+ Kg1 Qd3 Kg2 Qe7 Rc6 Qd6 Ra8 Bf6 Ra7+ Kd8 f8N Qf5 Nh7 Qc8 Rc2 Bb5 Bb2 Qa6 Rf7 d3 Rc5 Bc6 Rb5 Bh8 Re6 Bd4 Re5 Bb7 Bc3 Ba8 Bb4 Ba1 Bc5 c3 Rf6 Qd7 Bd6 Rd4 Bb8 Qd6 Rff5 Na5 Rb1 Bc6 Rbb2 Ba4 Rc1 Bd1 Rcc2 Nb3 Rh5 Be2 Rh4 Rf3 Rh1 Rh3 Rh2 Rh4 Rh3 Rh5 Rf3 Rh3 Rg3
4k1b1/p1RR1PP1/2Rb4/1Pbb2NB/1Q1rpB1K/p3r2n/3RB3/2q1nb2 b - - 0 1 illegal: No possible last move, all moves rejected
kn3Nn1/1r5b/P1pR1P2/5bp1/1n1NBN2/R1Pr1Q2/q2pRr1n/2N3K1 b - - 0 1 legal: proof: d4 a5 f4 e5 b4 axb4 g3 f6 dxe5 f5 e4 fxe4 Bd2 h6 f5 Bc5 Bf4 Be3 Bg5 Bf4 gxf4 hxg5 Kf2 d5 a4 Kd7 h4 Kc6 e6 b5 h5 Kb7 e7 b3 e8R g4 h6 g5 a5 g3+ Kg2 b4 c3 d4 f6 e3 h7 d3 f7 e2 f8N d2 f5 e1N+ Kh3 b2 Bg2+ c6 Nf3 b3 Ra4 Nc2 Re2 Qd5 Ra3 Nb4 Ng1 Be6 Bf3 g2 Kh2 Qc4 f6 Bf5 Be4 Ra7 a6+ Ka8 Qf1 Rd7 Qf3 Rd3 Ra4 Rd4 Na3 b1R Nc2 b2 Ra3 Rd3 Nd4 Qd5 Re3 Rf1 Nge2 g1N Nc1 b1B Re2 Qa2 Kg2 Bc2 Rh3 Rf2+ Kh1 Ne7 Rg3 Rg8 h8N Rg7 Rh3 Ng8 Nhg6 Rb7 Nf4 Bb1 Rh7 Bc2 Rd7 Bh7 Qg3 Nf3 Rd6 Nh2 Qg2 Bb3 Qg3 Be6 Kg1 Bef5 Qf3
b1nN1Q2/2P5/3kP3/2rNb1pb/3pqr1P/pNrn1R2/KR2NRb1/1B6 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 f5 Bd2 h6 gxf5 Qb6 Ba5 Qf6 Bd8 Qb6 Bf6 Qd8 Bg5 hxg5 Kd2 Ke7 Kc1 d5 b4 a5 Kb2 g4 e4 g5 h4 f3 c4 g3 e5 g2 b6 d3 e6 d4 c5 f2 c6 a4 f6+ Kd6 b7 a3+ Ka2 d2 f7 Qd7 b5 Ra7 b6 Ra5 c7 Rc5 Qf3 d1B Nc3 Qc6 Bd3 f1B Rh3 Na6 b8R Bg7 f8N Ne7 b7 Be5 Bb1 Qe4 Nge2 g1R Nd7 Rg3 Qf8 Bg2 Nd5 Rgc3 Rf3 Rh6 Rf2 Rf6 Rf3 Rf4 Rf2 Ra5 Nc5 Bd7 Nb3 Rac5 Re8 Ba4 b8N Bc6 Rf3 Ba8 Nc6 R5c4 Rf2 Nc5 Rb8 Nd3 Nd8 Rc5 Na5 Ba4 Rb2 Be8 Nb3 Bh5 Bc2 Bh1 Raf1 B1f3 Bb1 Bg2 Qf5 Nc8 Rf3 Qe3 R1f2 Qe4 Qf8+
2K5/1rPp1n2/5bq1/1pbrRBBr/5B2/n1B1R2Q/3Pp1Pk/3r1RNn b - - 0 1 illegal: No possible last move
2qB4/KpqP1bp1/3qq1r1/N1RB1n2/5p2/1PB1k2Q/PR3R2/1b3nrB b - - 0 1 legal: proof: f4 h5 c4 d5 Qb3 e5 cxd5 exf4 g4 hxg4 Qa3 Kd7 Qxf8 a5 b3 a4 Nc3 a3 Na4 Nf6 Nb2 axb2 Qa3 Ng8 Qb4 Ra7 Qf8 Ra8 Kf2 b1B d4 c5 e4 f5 h4 c4 d6 Ke6 d7 c3 e5 Kd5 e6 Ke4 d5 f3 h5 c2 h6 Ne7 h7 Ra7 d6 Qa5 d8B Qc3 Bc4 Na6 Bd2 c1Q Rh5 Nc5 Ne2 Ra6 Nd4 f4 Nc6 Nf5 e7 Bd7 e8B Be6 Na5 Bf7 Bd5+ Kd4 d7 Rg6 Be1 Qc4 Bc3+ Kd3 Bc6 Qe6 Qe7 Qa3 Qh4 g3+ Kf1 f2 Qh3 Qb4 Bh1 Ne4 Kg2 Qbe7 Kf3 g2 Rg5 g1Q Rh5 Rf8 h8R Q7d6 Rg5 Rg8 Rg2 f1Q+ Rf2 Qg5 Rh5 Qc1 Rb2 Rh8 Rf2 Bc2 Rb1 Neg3 Rb2 Qge7 Rg5 Qc7 Rh5 Bb1 Rg5 Bg8 Bf7 Nf1 Rh5 Q6d6 Bd5 Qee6 Bd2 Rg1 Rg5 Q7c6 Rg3 Kd4 Be1 Be4+ Ke2 Q1c5 Rc3 Qc8 Bd2 Q5c7 Rc5 Rh6 Be1 Rhg6 Bb4 N1e3 Kd2 Ke5 Kc3 Nf1 Kc4 Bf7 Kb5 Kd4 Bd2 Bb1 Be1 N1g3 Bc3+ Ke3 Bc6 Q7b8 Kb6 Qbc7+ Ka7 Be8 Qh8 Bf7 Bcd5 Nf1 Qh3+
R1R4K/2p2b2/1PP3rP/1Nqb1q2/2NpR2k/1n1bN3/1QN4p/2Bbb2n b - - 0 1 illegal: No proof kernel
N1Q3n1/BNPp4/KPRqp3/1N3p2/8/k1b1N3/nnbB1P2/qrbB1n2 b - - 0 1 legal: proof: b4 a5 g4 c5 d4 f5 e4 Ra6 g5 Rf6 a4 b5 Ra3 cxd4 axb5 h6 e5 hxg5 exf6 g4 Re3 dxe3 Ke2 g5 Kd3 g3 Kc4 e2 h4 e1B b6 g2 Kb5 a4 c4 a3 c5 a2 c6 a1Q b7 g4 h5 g3 h6 Qc7 h7 Bc3 Qc2 Qd6 Nd2 Na6 b8B Bb7 Rh6 Nc5 Nc4 Na4 Nf3 g1N Ne3 g2 Bd2 Ne2 Nd4 g1N Ba7 Nc1 Be2 Nf3 Bd1 Na2 f7+ Kd8 Rg6 Bh6 f8N Nb2 Nfe6+ Ke8 Qc1 Nh2 Nc7+ Kd8 Na8 Nf1 Qc2 Ba6+ Kb6 Bd3 b5 Be4 Qc1 Bc2 Ka6 Kc8 b6 e6 Rg4 Kd8 Re4 Ke7 Re5 Nf6 Rc5 Rg8 h8N Rg1 Nf7 Ng8 Nd8 Bg5 Ng2 Be3 Nb7 Bf4 Be1 Bfd2 Ne3 Rh1 Qb1 Bc1 Bd2 Qb8 Ng2 Bb4 Nb3 Ng3 Ra5 Be4 Bh6 Be3 Bg4 Qe5 Qc2 Rb1 Rd5 Bc1 Bd2 Nf1 Ne3 Qg3 Qc3 Bc2 Bd1 Qh2 Qc4 Bc3 Rc5 Qb8 Qf4 Qf8 Qc7 Qb8 Qc8 Qf4 Nd8 Kd6 c7 Qh2 Nd4 Qe5 Ra5 Qd5 Ra4 Kc5 Ra5+ Kb4 Rc5 Qc6 Nb7 Qd6 Rc6 Ka3 Nb5+
5BNq/RP1pn3/1Kb1Bq1p/5RBk/bb6/2P1pr2/Br3Pq1/3q1Q1R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 h5 cxd4 g4 Qb6 h6 Qc7 Nd2 Nc6 Ndf3 Nd8 Nh4 gxh4 g5 Ne6 g6 Ng7 hxg7 Qd8 Kd2 e5 b4 a5 b6 e3+ Kd3 a4 Kc4 e2 Kb5 e1Q b7 h6 b8B h3 Qh5 a3 Bd6 e4 Bg5 d3 Qe2 h2 Nh3 a2 Nf4 e3 Nh5 d2 Rg1 d1B Bh3 h1Q Qf1 Qf6 Kb6 Qg2 b5 Bb7 Be6 Ne7 g8B Bc6 g7 Ra4 Ba3 Rb4 c3 Rb2 Bb4 Ba4 Bd6 Qd1 Bgf7+ Kd8 g8R Rh7 Rg6 Qh8 Bg8 Ke8 Rf6 Rf7 Rf5 Qdf3 Ka6 Qf4 b6 Qfd4 b7 Qdf6 Rd1 a1Q Bb4 Rc2 Kb6 Rb2 Rdd5 Qd1 Ra5 Ng6 Ra7 Bc5+ Ka5 Ne7 Ba2 Rf8 Bge6 Rf7 Ba3 Bb4+ Kb6 Kf8 Nf4 Kg7 Nd5 Qe5 Nf6 Kg6 Ng8 Qeg7 Re5 Rf3 Rf5 Qf6 Ka6 Ba5 Bc5 Bb4 Kb6 Kh5 Bd6 Ng6 Bf8 Ne7 Rh1+
1k2n2N/nnn2bR1/1KQ2R2/p5pP/3n1r1B/3b1BBB/1R2prPP/2b5 b - - 0 1 legal: proof: e4 c5 a4 h5 b4 d5 f3 dxe4 Nc3 b5 Nd5 bxa4 b5 Qd7 Nb4 Qg4 fxg4 cxb4 gxh5 Bg4 Bc4 Bf5 Bf1 Bc8 Kf2 Kd8 Ke3 Kc7 Kd4 g5 Kc5 f5 c4 a5 d4 e5+ Kd5 b3 c5 f4 c6 b2 Nh3 b1N Qd2 f3 Ba3 f2 Bc5 a3 Qb2 e3 Bd3 f1B Rg1 e4 Qc1 a2 Kc4 e2 d5 e1N Bf2 e3 Be2 Nf6 Nf4 Nc3 Bh4 Na6 d6+ Kb8 b6 Nc7 Kc5 Be6 b7 Nfe8 Rb1 a1N Bf3 Bf7 Rb2 Nec2 Ng6 Nd4 Kb6 N3b5 d7 Bd3 Rf1 e2 d8B Rh6 Nh8 Nab3 Be7 Ra7 Bd6 Nc5 Bdg3 Rf6 Qe1 Bg8 Bf2 N7e6 Bd5 Bd6 Rd2 Bf4 Rb2 Bc1 Qc3 Ne4 Bfg3+ N4d6 Rf5 Rf7 Re5 Rf2 Bf3 Nf4 Rf5 Nd5+ Kc5 Kc7 b8R Be6 Rb7+ Kc8 Re7 Kb8 Rg7 Rf7 Rf4 Rf5 Qc4 Bf7 c7+ Ka7 c8B Ndc7+ Qd5 Kb8 Kb6 Na7 Qc6 Nb7 Be6 Rf6 Bh3 Rf5 Re4 Rf6 Re6 Rf4 Rf6
B4bR1/8/1pRNR1K1/Pr1b1n2/p2P3B/Qn2k1b1/p1P1rR2/Bbn2b2 b - - 0 1 illegal: No proof kernel
B2B3K/4R3/3p3P/R2NP1p1/p1qb1p2/1n2r1Rk/rQPBn3/q1bn2B1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 Kd2 f5 Ke1 h5 Nc3 f4 Nd5 Bb7 Ne3 Bd5 Bg2 Be4 Bf1 Bf5 gxf5 Bc5 Ng4 hxg4 Bg2 Be7 Bf1 Bf8 Kf2 Ke7 b4 Kf6 e4 Kg5 h4+ Kh5 f6 a5 b6 g5 f7 d6 b7 d3 e5 d2 b5 Qd7 b6 Nf6 Bg2 Be7 f8B Qb5 Rh3 Rh6 Ne2 Nfd7 Nc3 Bd8 Nd5 Nc6 b8R Qc4 b7 Nc5 Be7 Bb6 Re8 Nd4 b8B Ne2 Bd8 Ba7 Bbc7 Nb3+ Bb6 Rh7 Be3 Bd4 Rg3 Rc7 Qe1 Rca7 Re7 d1N+ Kf1 f2 Qb4 Bb2 Bcd2 Bc1 Bh1 Ra6 Kg2 f1Q+ Kh2 Rc6 Bg1 Rb6 Qa3 Rb4 Be4 Ra4 Qb2 Ra3 Ne3 Ra7 Ba8 Ra2 Nd5 Ra6 Rg2 g3+ Kh3 Qe1 Rf2 g2 Rf3 Rb6 Rg3 Rb4 Ba7 g1B Bc5 Kh6 Kg4 Bd4 Kf5 Kh5 Kf6 Rba4 Kg7 R4a3 Kh8 Qg1 Re3 Kg4 h5 Kh4 h6 a4 Rb1 Na1 Rg3 Re3 Qa3 Qf1 Rb5 Nb3 Qb2 Qg1 Ra5 Qe1 Rg4+ Kh3 Rg3+ Kh2 Kg7 Rf3 Be3 Qec3 Bb4 Q4d3 Qa1 Qdc4 Kh8 Qb2 Bf2 Re3 Bd2 Qb1 Qb2 Qa1 Rg4 Kh3 Bg1 Qb1 Rg2 Qa1 Rg3+
1B1qR2B/2nP3B/BQK5/1n3p2/5prq/2p4P/NbN1P1np/qkr3N1 b - - 0 1 illegal: No proof kernel
6Q1/1q1p2P1/1p2r1n1/1NB5/BrP1r3/k2pRK1N/Bb2NnPp/n5Nq b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 cxd4 e5 axb4 f5 f6 exf6 Ra5 Bb5 Ra4 Bf1 Ra8 a4 b6 h3 Bb7 Ra3 Ba6 Rf3 Be2 Rf4 Bg4 hxg4 gxf4 Kf2 h5 c4 e5 f7+ Ke7 f6+ Kd6 g5 Kc5 a5 e4 g6 e3+ Kf3 e2 g7 e1N+ Ke2 f3+ Kf2 b3 a6 Kb4 a7 b2 Nh3 h4 Qd3 Nc2 Nd2 b1R Qh7 Nh6 Qg8 Nc6 Bd3 Qb8 Re1 Na1 Re3 Ne5 Ba3+ Ka4 Bb4 Qb7 Bc5 Re8 a8B Rb4 Bb1 d3 Ba2 Be7 f8N Ng6 f7 Ka3 Ne6 Bf6 f8N Bb2 Nd4 Re4 Nfe6 Ng4+ Kf1 Rh6 Ne2 Nf2 N6d4 Qb8 Bc6 Qb7 Nhg1 h3 Ba4 h2 Ke1 Re6 Ne4 Rh4 Ng5 Rhe4 N5h3 Ng4 Kd1 f2 Kd2 f1Q Ngf3 Qh1 Nfg1 Nf2 Ke1 Nd1 Kf1 Nc3 Kf2 Nd1+ Kf3 Nf2 Nb5+
1r4bb/Br4Qb/1p5r/1nRp1p2/1N1N1PrP/pB4kB/2Nn3P/3BK3 b - - 0 1 illegal: Other
Q7/1nnk1n1B/2p3RP/bR2B1P1/np3R1q/N1P2np1/2B1R1p1/1K1n3r b - - 0 1 legal: proof: e4 b5 b4 a5 f4 axb4 e5 f5 e6 g5 Nc3 g4 Nf3 dxe6 Nb1 e5 Ng1 e4 Bd3 Ra6 Be2 Rg6 Bf1 Rg5 fxg5 Bh6 Ba3 Bg7 Bc1 Bf8 Nc3 h5 Bd3 g3 Nd5 f4 Bf1 f3 Ne3 f2+ Ke2 Be6 Ng4 hxg4 Bb2 Bc4+ Ke3 Be2 Bc1 Bf3 gxf3 Nf6 Ke2 Ng8 h4 e5 a4 b3 d4 b2 Kd2 g2 c3 b1N+ Kc2 g3 a5 e3 a6 e4 d5 e2 a7 b4 a8B e3 d6 Bg7 f4 Bh6 f5 Na6 h5 Nc5 f6 Na4 f7+ Kd7 f8R Bg7 Rf4 Bd4 Ra2 Bb6 Be4 c6 Nf3 Ba5 Nd4 Nh6 Nb5 Nf7 Bh7 Qb8 Bd2 e1N+ Kc1 e2 Na3 Nf3 h6 e1N Bfd3 f1N Bc2 Ne3 Rf1 Rf8 Rf6 Qb6 Rg6 Qd4 Qe2 Qh4 Qa6 Re8 Qa8 Nd1 Bf4 Re6 Be5 Re7 Nc4 Na3 Rf2 Nb5 Kb1 Re8 Na3 Nd3 Re2 Nc7 Re4 Rb8 Rf4 Ndc5 Rb2 Nb7 Ra2 Ke8 d7+ Ke7 Rb2 Rf8 d8R Re8 Rb8 Kd7 Bd6 Re1 Be5 Rh1 Ra2 Nbd8 Rb5 Nb7 Bd3 Nfd8 Re2 Nf7 Bc2
2k2nqN/1p1Bp3/5p1P/3q4/NK3N1b/1bB1PB2/2Pp1b1q/B1Q1nR1b b - - 0 1 legal: proof: f4 a5 d4 g5 b4 axb4 a4 c5 h4 cxd4 f5 Ra6 Ra3 Rg6 f6 Rg7 fxg7 h6 Rg3 h5 Rg4 hxg4 h5 Rh6 Ba3 Rc6 Bb2 Rc3 Bc1 Rh3 gxh3 Qa5 Ba3 Qb6 Bc1 Qd8 Kd2 d5 a5 Kd7 e3 d3 h6 f6 h4 b3 Kc3 d2 h5 d4+ Kb4 b2 h7 g3 h8B d3 a6 g2 a7 g4 a8N g3 Rh3 Nh6 g8B Ng4 Bc4 Nh2 Na3 b1B Ne2 g1Q Nf4 g2 Bd5 Ba2 Rf3 Bh6 Nb5 Qg8 Nd6 Bb3 Bb2 Bg5 Bc3 Bh4 Qc1 d1Q Bg7 d2 Rf2 Nf3 Nf7 Qh2 Nh8 g1B Bh6 Ne1 Nb6+ Kc7 Bf3 Nd7 Bb5 Nf8 Rf1 Bf5 Bd7 Be4 Bg5 Bgf2 h6 Qe2 Na4 Qd3 Ne2 Kd8 Bf4 Bc6 Bfe5 Qdd5 Be8 Kc8 Nf4 Qde6 Ba1 Be4 Bec3 Qd5 Bfh5 Bg2 Bf3 Bh1 Bd7+
1rR5/q3bK1Q/NPpN3p/1b2rp2/1p1BB3/Pn1pPk2/2N3r1/B4B1q b - - 0 1 illegal: No possible last move, all moves rejected
3qNKB1/n2b1NP1/pN2p1Bp/2r3pN/3R3Q/7k/PBPq1p2/1qn1q3 b - - 0 1 legal: proof: e4 c5 b4 cxb4 f4 e6 e5 Ke7 f5 Ke8 Na3 exf5 e6 f4 e7 Qa5 Rb1 Qd8 Rb3 Nc6 Re3 Nb8 Re6 dxe6 Qe2 Kd7 Qf3 Qc7 Qd1 Qd8 g4 f5 Qf3 b5 Qd1 a6 h4 f3 h5 g6 h6 Bg7 hxg7 f4 Be2 Ra7 Bf1 Rc7 Rh5 Rc5 Rh1 Rf5 gxf5 Qb6 Bb2 Qa5 Bc1 Qd8 Kf2 b3 e8B+ Kd6 d4 b2 f6 b1Q d5 Ke5 d6 Kf5 d7 Kg4 f7 h6 f8N b4 Nc4 b3 Ne2 g5 Qe1 b2 Nh7 Qe7 d8N Nc6 Nb6 Na7 Ng3 Bd7 Bd3 Nf6 Bf7 Nd5 Bg8 Nc3 Nh5 Ne2 Nf7 Qd8 Bg6 Qa1 Rh3 b1Q Bb2 Nc1 Rg3+ Kh4 Rg4+ Kh3 Qe4 Bc6 N7f6 Bd7 Ba3 Qc3 Bb2 Qd3 Ne8 Qd1 Rg1 Qd5 Rd1 Qa5 Rd4 Qd2+ Kf1 f2 Qe1 Kg4 Kg2 Kh4 Kf3 Kh3 Ke4 f1Q Ke5 f3 Kd6 f2 Qe4 Qfd1 B8h7 Rf8 Bg8 Q1e1 Qh4+ Kg2 Ne5 Rf5 Nf7 Rb5 Nh8 Rc5 Nf7 Qc8 Ke7 Qb8 Kf8 Qd8 Qf4 Kh3 Qh4+
4b1K1/1pN5/rkp3P1/RqP2PpQ/1p5R/BRp1np1p/2B1R3/2b2B1r b - - 0 1 legal: proof: c4 a5 g4 f5 h4 g5 b4 axb4 f4 d5 h5 d4 Nc3 dxc3 Qc2 e6 gxf5 Nc6 f6 Nce7 Qf5 Ng6 hxg6 e5 Qg4 Qd3 f5 Qd8 Qf4 exf4 Kf2 Kd7 Kf3 Kc6 Ke4 h5 Ke5 f3 a4 h4 e4 Kc5 d4+ Kb6 d5 Be6 a5+ Kc5 a6 Bh6 f7 Bc8 f8R Bd7 d6 Ba4 Ke6 Qc8+ Kf7 Bg7 a7 Rh6 d7 Kb6 d8Q Ka6 e5 Qb8 e6 Rh8 e7 Nf6 e8B Ng8 Ne2 Ne7 Nf4 Nc8 Ne6 Nb6 Ra3 Ka5 Rb3 Nd5 Ba3 Ne3 Qd4 Bf6 Qg4 Kb6 Qh5 Be5 Bb5 Qd8 Re8 Bf4 Rh3 Rh6 Kg8 Qd5 Bc6 Qc5 Be4 Bc6 Bc2 Qb5 Rh1 Bd7 Rh2 c6 Nc7 Rh7 Re2 Rh6 Rd8 Be8 Rd1 Ng2 Rd4 Bc1 Rde4 Ne3 Rd4 Rc8 a8R Rh7 Ra4 Ra8 Ra5 Ra6 Rd5 h3 Rd6 Rd7 Rd4 Rd5 Rh4 Rd1 Bg2 Rg1 Bf1 Rh1 c5+
1Br2r2/6R1/1R3rnB/1bPNnPb1/3qB1pr/4R1KQ/nb4P1/3R1rkr b - - 0 1 illegal: No proof kernel
5n1Q/Bq1R1Nq1/3b1kB1/3q1PP1/K3bR1R/nr3pq1/BrR2Pn1/4qq2 b - - 0 1 illegal: No possible last move, all moves rejected
6bn/bpPkb3/Br3B2/PP1R3R/2Nb4/1KB1nnr1/2nR1rq1/R4Qb1 b - - 0 1 legal: proof: e4 a5 b4 h5 d4 f6 g4 hxg4 Ba6 c6 Nc3 f5 exf5 c5 b5 cxd4 Nd5 Rh5 Nb4 axb4 Bh6 Rh4 Bc1 Rh8 Kd2 d5 a4 g5 c4 e5 Kc2 d3+ Kb2 d4 h4 g3 f4 e4 h5 g4 a5 g2 c5 g3 h6 b3 c6 e3 f6 e2 f5 e1B c7 d2 f7+ Kd7 h7 d3 f6 Bf2 Qe1 d1R Qf1 d2 Rb1 Ne7 Ka3 b2 Kb3 Ba7 Ka4 Rg8 h8R Nbc6 R8h6 Ng6 Nh3 g1B Qe2 g2 Qh5 Nh8 Rh2 Nd4 Nf2 Nc2 Qf3 Be7 f8B Rg3 Ne4 Bgd4 f7 g1B Ra1 b1N Bg7 Qg8 f8R Re1 Rf7 d1N Rd2 Nde3 Bb2 Re2 Rf5 Rf2 Qg2 Rg6 Rh7 Rb6 Qf1 Rb8 Be5 Qg2 Bf6 Ra8 Rhh5 Rb8 Rd1 Nd2 Bc3 Nf3 Rd5+ Ke8 Qe1 Be6 Nd6+ Kd7 Qf1 Rg8 Kb3 Rg3 Rd2 Bg8 Nc4+
K3RBk1/Q5bR/brPrbpP1/1n1Nb1n1/2qR4/2N2Pr1/1nN2r1b/7N b - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b5 Nh6 b7 Ng8 b6 Qd3 Be2 Qd8 Bb5 cxb5 Ke2 e5 Ke3 a5 c4 h5 g4 b4 d4 h3 d5 b3 c5 a4 g5 f6 d6 Kf7 c6 h2 d7 a3 Qf3 a2 Nd2 b2 Qf4 b1R Nf1 h4 Ng3 h3 N1e2 Nh6 g6+ Kg8 Qh4 Bg7 Qh5 Ra3+ Nc3 Na6 b8R Nc7 b7 Nb5 Rg1 h1B Ne2 h2 Ra8 Nf7 b8N Ba6 Re1 Ng5 Qg4 Rb2 Rb1 a1B Rd1 Rh3+ Ng3 Rab3 Qh5 Qc8 d8N Qe6 Ra7 Qc4 Rd4 Bf3 Rad7 h1R Ne6 Bg4 f3 Rf2 Nf4 Be6 Ba3 Rd1 Nh1 Rg3 Bf8 Rbb2 Rd8 Rdd2 Re1 Rd1 R4d7 Rd6 Nfd5 Rb3 Qh2 Rb4 Qg1 Bb2 Re2 Rb3 Kd2 e3+ Kc2 e4 Re8 Rh3 Rd2 e2 Rd4 Rg3 Kd2 e1N+ Ke3 Nd3 Rde7 Bh6 Rh7 Bg7 Qa1 Rb4 Qa5 Ba1 Qc7 Nb2 Qa7 Bb7 Na6 Rb3 Kf4 e3 Nab4 e2 Nc2 e1B Ke3 Ba6 Ncb4 Nc7 Nc2 Rb6 Rd1 Qa2 Kd4 Nb5+ Kc5 Qb3 Rd4 Qa2 Kb4 Qc4+ Ka5 Bd2 Re4 Bf4 Rd4 Be5 Ne4 Bf4 Rd2 Rh3 Rc8 Bh2 Rd3 Na4 Re8 Bae5 Nec3 Nb2 Rd2 Rb8 Rd4 Rc8 Kb6 Rg3 Qd7 Nc7 Ka7 Rb8 Qe7 Rb6 Qd7 Nb5+ Ka8 Bh8 Qe7 Bg7 Qa7
2n2kN1/nqBqR3/3B1P1n/r1BQ4/4BK1b/1q1p1nRP/r2P1R2/n4bq1 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 a4 h5 Nc3 hxg4 Nd5 fxe4 axb5 Na6 b6 Nb8 b5 Na6 Nb4 cxb4 Qf3 Nb8 Qe2 Kf7 Qd1 Ke8 Ke2 a5 Ke3 e5 f4 g5 c4 d5 f5 d4+ Ke2 d3+ Ke3 a4 b7 g3 b6 g2 c5 g4 c6 b3 c7 b2 Qe1 b1Q Ra2 g3 Qd1 a3 Qg4 Rh5 Ne2 g1N Nc3 g2 Ne2 Be7 Bb2 Nf3 Nf4 Nd4 Nd5 Nd7 b8B Nb5 b7 Nb6 Qg7 Nh6 Rg1 Qd7 Ra1 a2 Bc3 Qb3 Qg5 Kf8 Bb4 Na7 Re1 a1N Qg6 Rg5 Qc6 Rh5 Nf6 Rg5 Kf2 e3+ Kf3 e4+ Kf4 e2 Qd5 e3 Ng8 Rh5 Bc5 Rg5 Rh1 g1Q Bg2 Rh5 Rf1 e1Q Be4 e2 Rf2 Qeb1 h3 e1N Rhh2 Nf3 Rhg2 Q1b2 Rg3 Qg7 Be3 Bh4 f6 Qh7 Qd4 Ra5 Qd5 Qde7 Bd4 Bg4 c8R+ Qd8 Rc1 Qdd7 Re1 Nbc8 Bc7 Qhe7 b8B Qeb4 Ref1 Qb7 Re1 Ra2 Bh7 Ng5 Ba5 Nc6 Re7 Be2 Be4 Nf3 Bab6 R8a5 Bdc5 Bf1 Bbd6 N6a7 Bbc7
1bBNn3/kB6/PnpBq1bB/rq6/R1N1Q2P/K1P1rq2/3qN1qr/4r3 b - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 h5 b4 hxg4 a4 axb4 Bh6 f5 Ra3 f4 Rg3 fxg3 Be3 Qe7 Bc1 Qd8 Kd2 b5 e4 d5 f4 Kd7 a5 Kc6 e6 Kb7 h3 g5 e7 g2 e8B d4 f5 b3 e5 c6 e6 b4 e7 b2 c3 g3 Kc2 b3+ Kd3 g4 Kc4 d3 Kb4 d2 f6 Bf5 f7 Ka7 Bc4 Nf6 Bd3 Nbd7 Ne2 g1Q Ka4 g2 Kb4 g3 Nd4 Qe3 Bf1 g1Q Be2 g2 Qe1 d1Q Ka3 Bg6 Nd2 b1Q Nc4 Qe6 Bh6 Nb6 Bd7 b2 Bc8 Ne8 Qh4 Qbd3 Qe4 b1R h4 Rb2 Bg4 Q1f3 Ne2 Qd2 Bf5 Q8d5 Bb7 Qb5 Rh2 Bg7 f8B Be5 a6 Bb8 Bh3 Qgf2 Bf5 g1R Rg2 Re1 Rg4 Q2g2 Rf4 Nf6 e8N Rc2 Ned6 Ne8 Nf7 Rb2 Bhg7 Rh5 Bd6 Qc8 Nh8 Qgg4 Qe3 Qd1 Be4 Qbd5 Bf6 Ng7 Ng3 Rh2 Nf7 Q1d2 Bf5 Bc7 Ne2 Qgg2 Na5 Qd7 Qd4 Re8 Bg5 Re3 Nd8 Bb8 Bh6 Ne8 Qb4 Q7f7 Bfc8 Qfe6 Qb1 Rhe5 Ra4 Rh5 Nc4 Q5d3 Nb2 Ra5 Qc2 Qdf5 Nc4 Qb5 Qe4
3NBn2/P3q2b/4bk1P/q1b1R2b/R1r2n1p/nRqn2r1/1Q1B3P/1R2B2K b - - 0 1 illegal: No proof kernel
r2bbrq1/3p1p2/4RBBN/rr3PK1/1r1PR2P/4BR1Q/5bnR/3nn1k1 b - - 0 2 illegal: Other
1K1N3k/1R4rb/1qQ2p2/1r3Pq1/qRNP4/bpR1P3/1qNn3B/qn2N1n1 b - - 0 1 legal: proof: c4 e5 b4 a5 h4 axb4 e3 g5 Be2 e4 d4 gxh4 Bd3 d5 cxd5 exd3 Kd2 h5 f4 b5 a4 c5 g4 b3 Kc3 d2 g5 b2 g6 b4+ Kc4 h3 Kb5 c4 a5 c3 a6 c2 d6 h2 g7 h4 a7 h3 Qg4 d1Q Qf5 Qb6+ Ka4 Rh5 Qa5 Nd7 Ra2 Ne5 Nf3 Bf5 Rf1 h1Q Qa6 h2 Ne1 Qg2 Na3 b1N Rb2 Nf6 g8R h1Q Rg7 Qg5 d7+ Ke7 d8N Nf3 Rb3 Bh7 Rc3 Ne4 f5 Kf6 Qc8 Rb8 a8N Ng1 Qc6+ Bd6 Bd2 c1Q+ Nac2 Qb2 Bc1 Ned2 Rf2 Qa1+ Ba3 Qh2 Rg2 Rh6 Rf2 Rg6 Re2 Qb7 Ka5 Qc7+ Ka6 Rb5 Nb6 Qb8 Rg8 Rg7 Nc4 b3 Rg2 Qc1 Re8 Qcb2 Re7 Qe5 Rb7 Qe8 Rf2 Qc7 Ka7 Qb6+ Ka8 Rg6 Rh2 Kg7 Rh6 Bc5 Kb8 Kh8 Bb4 Rg7 Rf6 Bf8 Bd6 Qd7 Bh2 Ba3 Rd6 f6 Re6 Qe7 Re5 Qb4 Rc5 Qa4 Rd5 Rb4 Ra5 Rb5 Ra8 Qb4 Ra4 Q4a5 Rb4 Qaa7+ Kc8 Qa4 Kb8
3k1N1b/N7/bRqq1q2/QB1P2P1/Kn1n1p1q/1rr2P1N/p1q5/b2RRR2 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 Be3 d5 axb5 dxc4 d5 Na6 Bb6 Nb8 Bd4 exd4 Kd2 c5 Kc2 f5 e4 a5 b4 h5 g4 d3+ Kc3 a4 f3 a3 g5 h3 e5 a2 b6 h4 b7 d2 e6 f4 e7 h2 b5 h3 b6 Nh6 Be2 Qd6 Qe1 d1Q Na3 Nc6 b8R Nf5 b7 Nb4 Kb2 Bg7+ Qc3 Nd4 Nb1 Ra3 Qd2 Rc3 Ra8 Rh7 b8R Bh8 Ra4 Rh6 Rb5 Ba6 Rb7 Re6 Ra3 Ree3 Rb3 Qc2+ Ka3 Qf6 Rb5 Kd7 e8N Kd8 Bd3 Qd6 Ne2 Qf6 Rc1 h1Q Ka4 h2 Ng7 Qf1 Bg6 h1Q Bd3 Qh4 Rd1 Qfh3 Rb7 Qhe6 Ng1 Qd6 Bf1 Red3 Na3 Re3 Nh3 Red3 Ka5 Re3 Rbb1 Rb3 Rb5 c3 Rb6 c4 Rbc1 Nbc6+ Ka4 Qb1 Re1 c2 Nb5 c3 Be2 Qb2 Rcb1 c1Q Rh1 c2 Qa5 Nb4 Na7 Qc3 Bb5 Qcc6 Rg1 Rec3 Rf1 Qb2 Rbe1 c1B Rb1 Qc2 Ra1 Bb2 Rad1 Ba1 Ne6+ Kd7 Nf8+ Kc7 Re4 Kd8 Ree1
B2Q4/nn1pP2n/2qPR2B/3PK3/1R1Rb1N1/qnqB1k2/1br1R2p/4rn2 b - - 0 1 illegal: No proof kernel
bQ2q2N/2n3R1/1p1b3b/brNk1rP1/r1p2n2/2b2R2/P1P1B2K/1N1Rq1N1 b - - 0 1 legal: proof: g4 a5 e4 h5 b4 axb4 e5 h4 e6 dxe6 Ba3 e5 Bb2 e4 Be5 g5 f4 Ra5 fxg5 Ra8 Bg3 hxg3 d4 Kd7 h4 Kd6 g6 c5 d5 f5 g7 e5 g5 b3 h5 b2 h6 f4 h7 b6 Qd3 c4 Bh3 f3 Kf1 e3 Nd2 g2+ Ke1 e2 Kf2 b1R Kg3 e1B+ Kh2 f2 Qe2 f1Q Qd3 e4 Nb3 e3 Bd7 e2 Nc5 Qe8 Na6 Ba5 Qd4 e1B Nc5 Rb5 Na4 Ne7 g8R Bb7 Nc3 Ng6 Rg7 Nf4 Bg4 Na6 Be2 Nc7 Nb1 Bec3 Qe5+ Kc5 d6+ Kc6 d7 Qe1 Qe7 Kd5 d8N Ra6 Qa3 Ba8 Ne6 Bd6 Qb2 Rf8 h8N Rf5 Nc5 Ra7 Qc1 Ra6 Qe3 Bf8 Qg3 Ra7 Rg8 Bh6 Rg7 Ra6 Nh3 Ra7 Rf1 Ra6 Rf3 g1B+ Kh1 Bgd4+ Ng1 Be5 Kh2 Bd6 Nd2 Bab4 Rd1 Ra4 Nb1+ Bd2 Qf2 Ba5 Qe3 Bc3 Qe7 Ba5 Qd8 Bc3 Qb8 Ba5 Rc1 Bdc3 Rd1+
1Kn1Rq1R/Rn4qR/5r1p/1Bb1p2P/4qQk1/P1N5/2P1nrr1/BB2rb2 b - - 0 1 legal: proof: e4 a5 d4 f5 f4 c5 b4 axb4 Nc3 cxd4 Nce2 g5 exf5 Ra3 f6 Ra6 f5 Ra8 Nf4 gxf4 Ke2 Kf7 Kd3 b5 Ke4 d5+ Ke5 h6 g4 d3 h4 b3 a3 b2 g5 b1Q h5 b4 Rh2 f3 Rf2 d4 Rd2 f2 Bb2 b3 Bc3 b2 Be2 f1R Bf3 Rf2 Be2 Ra6 Bf3 Nc6+ Ke4 e5 Qf1 Bc5 Be2 Qf8 Kd5 Qe1 Rad1 b1Q Ba1 Qb7 Rb1 Qbe7 Rb7 Nd8 Ra7 Nb7 Rd1 d2 Bb5 d3 Ne2 Qg7 Nc3 Qef8 Rb1 Rg2 Qf4 d1N Rb4 d2 Rb1 Ra5 Kc6 Ne7+ Kc7 Ra6 Kb8 Qe4 Rb4 Rg8 Rd4 Rf2 Rd7 Ne3 Rc7 d1R Rd7 Nf1 g6+ Ke8 Rc7+ Rc6 Rd7 Ng3 Rc7 Kd8 f7 Ne2 f6 Bf5 Bb2 Re6 Ba1 Nc8 Re7 Re1 Rc7 Qe8 f8R Bh3 f7 Bf1 Re7 Rf6 Rc7 Rh8 Rg8 Rg2 f8R Rh7 Rh8 Rf2 Rc6 Kd7 Rc7+ Ke6 Rd7 Qee7 Re8 Qf8 g7 Rg2 g8B+ Rhf7 Qc1 Kf5 Qd2 Qg7 Rc7 Rf8 Ba2 Kg4 Bb1 Rff2 Qe3 R8f6 Qd4 Qef8 Rd7 Qg6 Rdh7 Qg5 Qe3 Qgg7 Qf4+
2bq1rk1/N1bn1r2/2NBPn1r/P1r4p/1n1Q3P/1N2pRK1/1q1R4/q1N4R b - - 0 1 illegal: No proof kernel
B4R2/n2k2bN/q1N1b1NR/3b4/nrbpq2p/3N1rPP/n4PQK/5Rr1 b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 h3 fxe4 Rh2 b5 axb5 g5 Rh1 g4 Bd2 Nh6 Bf4 Ng8 Bh2 g3 Qd2 gxh2 Qe2 Bb7 Qd1 Bc8 c4 a5 b4 e5 c5 h5 b6 d5 b5 a4 c6 d3 g3 h4 b7 a3 c7 d2+ Ke2 e3 Kf3 e2 Kg2 e1R b6 a2 Qe2 d1B Qe3 e4 Nf3 d4 Bc4 Kd7 Ng5 Qf6 Qe2 e3 Qf1 e2 Bb5+ Nc6 b8R Bg7 b7 Ra3 Ne6 Rf3 Ba4 Ne7 Bb3 Na7 Nf4 Nec6 Nd3 Nb4 Nc3 Qa6 Bd5 Bb3 Ne4 Bc4 Ng5 Rd1 Rb1 a1N Nh7 Na2 Rb6 e1Q Rh6 Nb3 Ra8 Qe4 b8N+ Ke7 Qg1 Be6 Nc6+ Kd7 c8N Nc5 N8e7 Na4 Ng6 Rb8 Qf1 Rb7 Rf8 Rb4 Rg1 h1B+ Kh2 Rdb1 Qg2 Re1 Nce7 Reb1 Ba8 Rf1 Nc6 Ra1 Re1 Rd1 Re2 Rg1 Re1 Qe5 Rh5 Rf6 Qf1 Bhd5 Qg2 Qe4 Rh6 Rf3 Rf1
Rq3b1R/Nrn5/rq1q1PK1/N2Pr1p1/1Qbpk1P1/2B1N2n/rR1N4/6n1 b - - 0 1 illegal: No proof kernel
1qRb2R1/p2B1n1B/5pP1/qr1R1P2/4QB1r/1n1qbr1b/1kq1P3/3B2NK b - - 0 1 legal: proof: h4 c5 a4 e5 d4 b5 Nd2 bxa4 Ndf3 g5 hxg5 e4 Ne5 cxd4 Nd3 exd3 f4 Ke7 Kf2 Ke6 c4 h5 b4 d5 g4 h4 Kg2 d2 g6 f6 c5 h3+ Kh2 d3 g5 a3 c6 a2 c7 d4 b5 Kd5 g7 Kc4 g6 Kc3 b6 Be7 b7 Rh4 Rb1 a1B Nf3 Na6 b8R Nh6 g8B Nf7 Qa4 d1Q R8b4 d2 Ng5 d3 Rd4 Qb3 Qb5 d1Q Qb7 d2 Bh7 Rb8 Bg2 Nc5 Nf3 Qb2 Kg3 h2 Rg1 Be6 c8B h1R Bd7 Bh3 f5 Qa5 Qb4+ Kc2 Rd5 Rb7 Re1 Rf1 Kh2 Qe5+ Qf4 Bd4 Ng1 Rb8 Rb6 Nb3 Kh1 Bf2 Re6 Bd8 Re8 Rb5 Rg8 Qb8 Be4+ Kc3 Qg4 Bfb6 Bc2 Rf3 Qe4 Bd4 Ba3 Bc5 Bb4+ Kb2 Rf1 Bd4 Bd6 Be3 Bf4 Qb1 Rc1 d1Q Bd3 Qdd2 Rc8 Qbd1 Bb1 Qd3 Bc2 Qc1 Bd1 Qcc4 Bh2 Qcc2 Bf4
1n1qrb1B/2n1k2N/3n1R2/Pp3Rb1/Qp3r1q/1P4qb/1KBq1PR1/1B5B b - - 0 1 legal: proof: e4 a5 h4 g5 d4 gxh4 Nc3 f5 exf5 c5 Nd5 cxd4 Nb4 axb4 Kd2 Bg7 g4 Ra3 c4 b5 Kc2 e5 f6 d5 g5 h5 c5 h3 g6 h2 f7+ Ke7 f8R e4 c6 e3 c7 d3+ Kb1 d4 Bd2 e2 Bh3 e1B Bc3 h4 Bf1 d2 Bd3 h3 Rf6 Nh6 Qc2 d1N Rd6 Ne3 Nf3 Nhf5 Ng5 Nd5 Nh7 Re8 b3 Ra6 a4 Bd2 a5 Bf8 g7 Bh6 Rg1 h1Q Qa2 h2 g8B Qg2 Bc2 h1Q Qa4 d3 Kb2 Qh4 Be6 d2 Rae1 d1Q Bh8 Qgg5 Re5 Qgg3 Bb1 Bd7 c8B Nc7 Bb7 Bg5 Bh1 Qe1 Rg2 Qd2+ Ka1 Bc8 Bc4+ Be6 Bcd3 Rc6 Be4 Rc4 Bec2 Rf4 Rc5 Bd7 Rf6 Nd6 Kb2 Bh3 Rcf5
B1n1BQ2/4p3/qqrBq3/PR2P2R/1p2bk2/1b1Pb1R1/1n1r4/K1N2brR b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g6 Nc3 g5 Nd5 d6 Ne3 gxf4 g5 d5 Ng4 hxg4 cxd5 Rh7 Qb3 Rh5 Qd1 Rh8 e4 Kd7 h4 Kd6 a4 Ke5 a5 f5 g6 b5 d6 c5 h5 c4 d7 b3 h6 b2 g7 b1B h7 f3 Ba3 g3 Nh3 f2+ Ke2 c3 Bc5 g2 Ng5 g1R Rh2 c2 Kd3 c1Q+ Qc2 f4 Kc3 b4+ Kb3 f3 Ba6 f1Q Bd3 f2 Nf3+ Kf4 e5 Nh6 g8B Na6 Bd5 Nf7 Rg2 Qb6 d8R Nd6 Bg6 Bh6 Ne1 Be6 Rb8 Nc8 Rg3 Rd8 h8R Ra7 Bf7 Rc7 Be8 Rc6 Bd6 Qd1 Kb2 Qg4 Qh7 Nc5 Qg8 Be4 Qf8+ Qf5 Rb1 Na4+ Ka1 Qfa6 Rc1 Bg5 Rh5 f1B Rb1 Qf6 Rb7 Nb2 Nd3+ Kf5 Nc1 Kf4 Ba2 Bb3 Rb8 Bbc2 Bd5 Bb3 Rb7 Qba7 Rb5 Q7b6 Qh6 Qe6 Qg7 Rc2 Ba8 Rd7 Qg8 Rdc7 d3 Rd2 Qh8 Rc6 Qf8+ Qf6 Ne2+ Kf5 Bb8 Bh3 Bd6 Rh1 Rbg1 Bf1 Rh8 Be3 Nc1 Kf4 Rh5 Qf5 R1g2 Rg1 Rgh2 Qf7 Rh1 Qf6 Qh8 Qe6 Qf8+
b1NK4/N1n2rp1/1b2rB2/2P2qn1/2B2RP1/n2pkN1P/Q1q5/1B1q1Nrr b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 e5 d4 cxd4 f4 exf4 Ra3 h4 Rg3 hxg3 Kd2 Ke7 Kd3 Kd6 Ke4 a5 Kf5 Kd5 b6 f3 b7 g2 b5 a4 c3 a3 b6 f2 e3 a2 Ba3 a1N Bc1 d3 Bb2 d2 Ba3 Nf6 Qc2 d1Q Nf3 g1R Bb2 Ne4 Nbd2 Na6 b8N Ng5 b7 Qc7 Nc6 Bc5 b8N Bb6 Na7 Bb7 Nbc6 Rae8 Nc8 Ba8 N6a7 Re6 c4+ Kc5 e4 d5 e5 d4 Qb3 Nc2 Qa2 Na3 h3 Rf8 Bd3 f1R Bb1 d3 Ba1 Re1 Nf1 f6 Rh2 Rf7 Rf2 Qc6 Bc3 Nc7 Bb2 Qca4 Kg6 Qac2 Bc3 Rc6 e6 f5 Bf6 f4 e7 Rce6 e8B Rh1 Bb5 Rg1 Ne5 Kd4 c5 f3 Bc4 Rh1 Re2 f2 Re4+ Kc3 Rf4 Rg1 Nh2 Kd2 Nef3+ Ke3 Kf5 Rh1 Kg6 Reg1 Kf5 f1Q Kg6 Re8 Kf5 Ref8 Ke5 Re7+ Kd6 Re6+ Kd7 Rf7+ Kd8 Qfg2 Nh4 Qe4 N4f3 Qf5 Nf1+
2NQr2n/1RBp2b1/3rr3/Pb1BPq2/1q1q1b1K/7n/N1BPBNpk/5q2 b - - 0 1 legal: proof: f4 a5 g4 h5 a4 hxg4 b4 axb4 Kf2 c5 Ke1 e5 Ra3 c4 Rb3 cxb3 fxe5 Qe7 Na3 Qf6 Nb1 Qd8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 h4 g5 h5 b5 e6 b2 h6 b3 h7 b4 c5 Ne7 e3 Bg7 a5 Nd5 e7 Nc6 e8B Nce7 c6 Ra6 c7 Nf4 Rh6 Rd6 Rh2 Ba6 c8B Nh3 Qe1 Ng6 Bc4 Qf6 Na3 b1R Bf1 b2 Nb5 b3 Bb7 Qd4 Na7 Bb5 Kg2 g3 e4+ Kf4 e5 f5 Nc8 g4 Rh1 Rf8 Bd3 Nh8 Bg6 Re8 Be2 Rde6 Bd5 Rd6 Qd1 Ree6 Qc2 Re8 Kf1 g2+ Ke1 Kg3 Qc7 f4 Qd8 f3 Bc2 Nf4 Nh3 g1B Nf2 Bh2 Kf1 Nh3 Ke1 Kg2 Rf1 g3 Rh1 Nf7 h8N Rde6 Ng6 Nh8 Nge7 Rd6 Nc6 Ree6 Ne4 f2+ Kd1 Re8 Nb4 Rde6 Re1 f1Q Na2 Kg1 Nf2 g2 Bed3 Bg3 B3c4 Kh2 Be2 Qg1 Rf1 Bf4 Ke1 Qb4 Nd3 Qgc5 Rf3 Qcd4 Nf2 Ra1 Rc3 b1Q Rc7 b2 Rb7 Rd6 Bcb3 Qbd3 Bbd1 b1Q Ba3 Qbc4 Bc5 Qcb4 Bb6 Qf5 Bc7 Rde6 Nc1 Ra3 Na2 Qbd3 Bc2 Q3c4 Bed3 Rc3 Ke2 Rb3 Kf3 Rb1 Be2 Rd6 Bed1 Qf1 Be2 Rc1 Bcd3 Rcc6 Bc2 Qfe4+ Kg4 Qf5+ Kh4 Rde6 Bb6 Rcd6 Bc7
1N3qb1/3PBN1n/r1pbRN1P/k1P4N/1b1K1nQ1/p5nB/1n2r2n/1n3B2 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 g4 h6 f4 gxf4 g5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 c4 a5 d4 e5 h4 f5 c5 g3 b6 Kc6 g6 Kb5 h5 c6 g7 e3 Kd3 f3 d5 e2 b7 e1N+ Kc3+ Nd3 d6 a4 h6 f2 Rh4 f4 Nd2 a3 Qh5 f3 Rh2 e4 Nh3 g2 Qg5 g1N Bg2 f1N Kd4 e3 Ne4 f2 Qd5 e2 Qa2 e1B Qe6 Ne7 g8B Ra6 Rh1 Ng3 Neg5 f1N Nf7 Ng6 Bg5 Ngf4 Qg4 Nd7 b8N Nf6 Nd7 Nh7 Be7 Nh2 Nf6 Be6 d7 Nb2 Bf1+ Ka4 b5 Bb4 b6 Ka5 b7 Ngf3+ Ke3 Nd2 b8N Bd5 Kd4 Nb1 Rg1 Qc8 Rg2 Bb3 Re2 Bc4 Re6 Qe8 Nh5 Qc8 Nhg5 Bb3 Bf6 Bd6 Be7 Qf8 Ne4 Bd5 Nef6 Ba2 Nd8 Bc4 Bf7 Rg8 Bh3 Rg5 Bg6 Re5 Bd3 Ba2 Bdf1 Re2 Re4 Bf7 Re6 Bg8 Nf7
4n1BB/1nbk3n/2B2ppq/2r4Q/2R1bP2/RP1n2Pr/2K1B2r/rN4Rr b - - 0 2 legal: proof: Nf3 b5 Ng1 c5 Nf3 b4 Ng1 b3 axb3 Qc7 Ra6 Qb6 Ra1 Qd8 d4 e5 Bd2 c4 Be3 c3 Bc1 cxb2 g3 exd4 Nd2 h5 Nc4 h4 Ne3 h3 Ng2 hxg2 Kd2 b1R f4 a5 e4 d5 c4 a4 h4 g6 h5 a3 e5 d3 h6 d4 e6 a2 h7 Bb7 c5 Ra5 e7 Be4 c6 Rc5 c7 Nd7 c8B Ngf6 Ba3 Rb2+ Ke1 d2+ Ke2 d3+ Ke3 Qa5 Qg4 d1R Kd4 d2 Nf3 g1N Bd3 Nh3 Qh5 Ng5 Be2 Qc7 Rc1 a1R Rc4 Rf1 Bb4 d1N Bb7 Nf2 Kc3 Nd3 Bd5 Qb8 Rg1 Rfd1 Bf1 Rh2 Be2 Re1 Nd2 Reb1 Rg2 Rbh1 Kc2 Qe5 Nb1 Qe6 Qf3 Qh3 Bc3 Qh6 Qh5 Rc7 Be1 N7c5 Bc3 Nb7 Rg1 Rc5 Bb2 Kd7 e8B+ Kd8 Bd7 Bd6 B7e6 Ne8 Bg7 f6 Bf7 Rf8 h8R Kd7 Bg8 Bc7 Rh7 Rf7 Bh8 Re7 Rf7 Nh7 Rf8 Ned6 Ra8 Ne8 Ra3 Re5 Qh4 Rh5 Qg5 R5h4 Qh5 R4h3 Bc6+
1R1rnKQ1/2pk2p1/bBN4B/1N1qP3/2P1r3/1P2b1br/n1bB2Br/3N2b1 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Bg2 exd4 Ra2 f5 Ra3 f4 Rg3 fxg3 Bh3 Qf6 Bf1 Qd8 Kd2 d5 Kd3 a5 f4 a4 e4 a3 c4 g2 h4 a2 b3 a1B e5 g3 b6 Bc3 h5 Kd7 h6 Ke8 f5 Be7 h7 Ra2 b7 Na6 b8B Be1 f6 Bc5 Nf3 g1R Nc3 g2 Ba7 Bg3 f7+ Ke7 Be3 Nf6 Bb6 Re2 Rh4 Rh1 f8B+ Ke8 Bg5 g1B Bg2 Re4 Rh6 Rh2 Qf1 Rg8 h8N Qd7 Nf7 Rh8 Bd6 Qe6 Nd8 Nb4+ Kd2 Na2 Kd3 Rh7 Nc6 Ba6 Rh4 Re1 Rf4 R7h3 Rh4 Re2 Rh8+ Qg8 Bh6 Re1 Kd2 d3 Nfd4 Re3 Ndb5 d4 Bf8 Re4 Qf5 Qe6 Qh7 Qg8 Kd1 d2 Kc2 d1B+ Kd3 Kd7 Bd6 Ke6 Be7 Qf7 Rb8 Ne8 Beg5 Qd7 Qg8+ Qf7 Be3 Bc2+ Kd2 Be7 Bef4 Bg5 Be3 B5f4 Ke2 d3+ Kf3 d2 Kg4 d1R Bc1 Rd3 Nd1 Rd8 Bce3 Kd7 Bd2 Qd5 Kf5 Qd4 Kg6 Bfe3 Kf7 Qd5+ Kf8
2n3Q1/1npB1brB/2Nr3b/b1P1N1RP/2p1n1q1/2N5/Pk1b3q/3NBK1n b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 c5 hxg4 Na3 Ke7 Rb1 Kd7 Rb2 Ke7 Rc2 Ke8 Rc4 dxc4 e4 Ke7 d4 Ke6 h4 g5 h5 f5 Bd2 b5 Be2 g3 Qb1 f4 Qd1 g4 Be3 g2 Nb1 g3 Nf3 g1B Nfd2 g2 Bf3 b3 Ke2 b2 Nf1 b4 Qc2 b3 Ke1 Qg5 Ng3 Ne7 Qc1 Rh7 Rh3 Ra6 Rh2 Bh6 Qd1 Rg7 Rh1 Nbc6 Qd3 Qg4 Bf2 Na5 Nc3 b1N Nf1 b2 Ne3 Nb7 Ned1 Rd6 Rh2 Nd2 d5+ Kd7 Be2 b1Q Qg3 f3 Bd3 Qb2 Rh4 Bh2 Rh3 g1B e6+ Ke8 e5 Ne4 Qg2 B2f4 Rg3 Bd2+ Kf1 Bd7 Bc2 Nc8 e7 Kf7 e8N Be6 Be1 Bd4 Nf6 f2 Nd7 Ke7 Qg1 Bf7 e6 B4e3 Ne5 Kf6 e7 Bef4 Na4 Ba5 e8B Bfd2 Nac3 Kf5 Bd7+ Kf6 Kg2 f1N Bd3 Qh4 Rg4 Nfg3 Rg5 Nh1 Kf1 Qg4 Qg2 Bf4 Qg1 Qh2 Qg3 Bd2 Bb1 Nef2 Bh7 Ne4 Qg1 Rb6 d6 Rc6 Be8 Rb6 d7 Rd6 Qg2 Ke6 d8N+ Kf6 Ndc6 Ke6 Na4 Kd5 Na7 Kd4 Bd7 Rdg6 Nac3 Rd6 Nf3+ Kd3 Ne5+ Kc2 Nac6 Kc1 Qf3 Kc2 Qf6 Kc1 Qd8 Kc2 Qg8 Kc1 Ne3 Kb2 Ned1+
2NK4/b1rp1r2/2RPb1pr/1PB1N1P1/Nk2Q1n1/R3r3/b2NbR2/2rbn3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 b5 c4 e5 g5 exf4 Bh3 Qe7 Bg4 hxg4 Ba3 Qc5 Bc1 axb4 Ba3 b3 Bb2 b4 Bc1 Qb5 cxb5 Ba6 Na3 Bb7 Nb1 Bc8 Kf2 Ke7 h4 Kd6 a4 Kc5 e4 f5 d3 g3+ Kf3 g6 e5 g2 a5 b2 h5 b3 d4+ Kb4 d5 c5 a6 c4 h6 c3 a7 c2 h7 Na6 e6 Bc5 d6 Nf6 e7 Bb7+ Qd5 Rac8 a8R Ba7 e8N Nc5 Ra3 Nd3 Nd2 b1B Rh2 b2 Nc7 Ng4 Ne6 Ba2 Nc4 b1B Nc5 Rc7 Bb2 c1R Rc8 Bc2 Qe4 Bd5 Bd4 Be6 Na4 Re8 h8N Bd1+ Ne2 g1R Ncb6 Rh1 Rf2 Rh2 Nf7 Rh6 Ne5 Re7 Nb2 Rf7 N2c4 Rc3 Nd2 Rb3 Kg2 f3+ Kg3 Ne1 Kf4 Rd3 Nc3 Re3 Re2 f2 Nca4 f1B Rf2 Rb7 Rc6 Bfe2 Nc8 Rc7 Nec4 Nh2 Ke5 f4 Bb2 f3 Bd4 Rg7 Kf6 Re7 Rg2 f2 Ne5 f1R+ Rf2 Rg7 Nf7 Rgh7 Ke7 Ng4 Kd8 Rg1 Ne5 Rf7 Rh2 Rc3 Rg2 Rc1 Rh2 Rg3 Rf2 Re3 Bc5+
3K4/Rpn1B1Nb/1PB4R/q2p1Bn1/Rrq1npR1/3P2Qr/P2r1k2/1bq5 b - - 1 2 illegal: No possible last move, all moves rejected
r1nN4/n1rq2qp/K7/1PN3bP/1p1BN1Pb/Q2r1p2/BN3R1B/1b3nk1 b - - 0 1 legal: proof: e4 b5 b4 c5 f4 d5 a4 g5 Ra3 gxf4 Rb3 dxe4 axb5 Bb7 b6 Ba6 b5 Bc8 Rb4 cxb4 Ke2 Kd7 h4 Ke6 c4 Ke5 g4 Kd4 c5 a5 d3 f5 c6 e5 h5 a4 b7 a3 c7 f3+ Kd2 e3+ Kc2 a2 Kb3 a1Q Rh3 f4 Rh2 f2 Qf3 e2 Nc3 e1R Nh3 e4 Nd1 e3 Ng5 e2 Ne4 Bf5 c8N Ne7 Nc5 Nbc6 b8B Bh6 Nb2 Na7 Nd6 Qd7 Nde4 Bg5 Rg2 Rd8 Be3+ Kd5 d4 Rc1 Rh2 e1B Be2 f1N Rf2 Rc2 Bd3 Rc1 Bb1 Nec8 Ba2 Rc3+ Ka4+ Rc4 Rg2 Beh4 Ka5 Bg6 Rf2 Bf5 Qe2 f3 Qd3 Bg6 Qa3 Bf5 Nb3 Rc7 Ka6 Bg6 Nec5 Bb1 Ne4 Rc4 Bh2 Rc7 Nd3 Kc4 d5 Qag7 d6 Kd5 Bb6 Kc4 Nbc5+ Kd4 Qa5 Ke3 Nb2 Re8 Qa4 Re5 Qa5 Rd5 Qa4 Rd3 Qa3 Qe6 d7 Qf5 d8N Qfd7 Rc2 Ng3 Nd2 Kf2 Nde4+ Kf1 Nf2 Kg2 Nfe4+ Kh1 Rd2 Nf1 Rf2 Qdf7 Nca4 Qe7 Bd4 Qd7 Bhe5 Kg1 Nac5 Rd2 Bd6 Rd3 Bh2+
1r2b3/2n2b2/1qqN1QRk/PnP4p/r1N1pp2/b2BRN1P/7K/rq4NR b - - 0 1 illegal: No possible last move, all moves rejected
1b1K4/n1P2pNp/1N3k2/R2Rq2p/2rB2R1/r3nnrP/3Nb2P/QR2q1b1 b - - 0 1 illegal: No proof kernel
nR1R2qR/3P4/1N1r1Q2/b1nN3q/NppB1p1P/1q3R1b/k1P4K/1b1r3n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 f5 dxe4 Be2 g6 fxg6 Bh6 g5 Bf8 Bg4 hxg4 Kf2 Kd7 Kg2 Kd6 a4 Kc5 h4 e5 g7 f5 a5 b5 g6 e3 d3 f4 a6 e4 a7 e2 Ra6 e1Q Ra4 b3 Rb4 g3 Nf3 b2 Rb3 e3 Nh2 e2 Bd2 Nd7 Rf1 Ngf6 g8N Ne8 g7 Qg5 Nf6 Rh6 g8R Qh5 Bc1 Qb4 Kh1 e1N Nd2 b1B Nhg4 g2+ Kh2 g1Q+ Kh3 c6 Nd5 Nc7 Ne5 Rd6 Rh8 Qg8 Kh2 Qa3 Rb2 Qb3 Nec4 Be7 Qe2 Bd8 Qe7 Kd4 Qg5 c5 Ncb6 c4 Ne4 Nc5 Rf3 Bh3 Nec3 Rb8 Qg6 Na8 Nca4 Bc7 Bd2 Rbd8 Ba5 Ne4 Bb4 Ng3 Qf7 Nh1 Bc5+ Ke5 d4+ Ke4 Qg7 Nd3 Qf6 R8d7 Bb4 Nc5 Bc3 Rd8 Nd7 Ba5 N7b6 Nc7 a8R b4 Rb8 Na8 Ra2 R8d7 Ra1 Ba2 Rd1 Bb1 Ne7 Rd8 d5 R8d7 Rff1 Ke3 Bd4+ Ke2 Rd3 Rd8 Rdf3 Kd2 R1f2+ Kc1 Rd2 Rc6 d6 Rd7 Nc3 Kb2 Nca4+ Ka2 Ned5 Re7 d7 Re1 Re2 Rd1 Ree8 Rd6 Red8
Bnrn1BB1/k3QP2/2r2Np1/N1qRr3/2rp3p/1KPPb3/r2bB3/2N2b2 b - - 0 1 illegal: No proof kernel
B2nN2q/k2n1Pn1/1N2NR2/1Q1r2n1/1np1N3/b1Pprrpb/1B1P4/5B1K b - - 1 2 legal: proof: b4 g5 g4 f5 e4 fxe4 a4 b6 Ra3 b5 h4 gxh4 Rg3 hxg3 axb5 Bh6 Bg2 Bg7 Bf1 Bf8 f4 h5 c3 a5 g5 e5 g6 c5 g7 d5 b6 Kd7 b5 a4 b7 Kc7 f5 Kb6 f6 h4 f7 h3 Bg2 c4 Kf1 a3 Bb2 h2 Ba1 d4 Ne2 a2 Bf3 d3 Kg2 e3 Qa4 e4 Na3 Nf6 g8B Ne8 Re1 h1R Qb3 Nc6 b8N Rf1 Rd1 Ra5 Qb1 Ng7 Na6 Ka7 Nf4 e2 Ne6 e3 Bb2 a1N Bh7 Nc2 Nac7 N2b4 Ne8 Bd6 Bg4 Rf3 Bh3 e1N+ Kh1 e2 Be4 Rh5 Bd5 Re5 Bf1 Ree3 Be4 Qf6 Bd5 Nd8 b6+ Ka6 b7 Ka7 Bc6 Rd5 b8N Bc5 Ba8 Bf8 Nd4 Bh3 Ne6 Qh4 Rc1 Qh8 Nd7 Rf6 Nec5 Na6 Ba1 Nb8 Bg2 Qh5 Ne6 Qh8 Nb6 Nf3 Rf1 e1N Qb4 Nd7 Bb2 Nc2 Nb5+ Ka6 Rf2 Ng5 Nbd6 Ka7 Qb5 Rf4 Ne4 Ba3 Rf3 Nb4 Bf1 Rff5 Rf4 Rf6 Rg4 Rf2 Rf4 Rff3 Rf6
k5q1/1rq4B/1BR1R1Pp/2Q1B2P/3br1bn/Ppb5/np1N1RB1/2nb2K1 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 g5 f5 d5 cxd5 e6 Nc3 exf5 Na4 f4 Nc5 f3 Ne6 Be7 Nf4 gxf4 Ba3 Bc5 Bc1 Bf8 Kf2 Kd7 e4 c5 g4 Kc7 h4 b5 d4 Kb7 h5 f5 a3 b3 g5 b4 e5 b2 g6 b3 e6 c4 e7 c3 e8B h6 d6 c2 d5 Ra7 d7 Ne7 d6 Bg7 Be2 Bd4+ Be3 c1B Ra2 Nbc6 Qe1 Nb4 Nh3 Ka8 Bf1 Rb7 Ng1 Bd2 Be2 B2c3 Bf1 Qc7 Bf7 Re8 Ra1 Na2 d8B Bd7 Ba6 Bc8 Kf1 f2 Qc1 Be6 Kg2 f1N d7 Ng3 Bf1 Ne2 Rh2 f3+ Kh1 f2 Bg2 f1B Bg8 f4 Bh7 f3 Bf4 f2 Nf3 Bh3 Nd2 Bg4 Be5 Nf5 Qc2 Re7 Re1 Nec1 Re4 Nh4 Re3 Qa5 Bb6 Bfe2 Qf5 Qc5 d8R+ Qc8 Rf8 Bd1 Rf6 Qc7 Rc6 Re6 Qg5 Re8 Re4 Re6 Qe3 f1Q+ Qg1 Qd3 Qe3 Qc4 Kg1 Re8 Qf2 Qg8 Re3 Rc8 Qf8 Rd8 Qd6 Rf8 Qc5 Rf2 Re2 Rf4+ Rf2 Re4 Rh3 Rf4 Rf3 Re4 Rff6 Ra7 Rfd6 Rb7 Re6
K4n2/1Prr2Qk/2RN1qp1/1p2BR2/1bP1q1PN/1Nrp2RN/n7/1r4bb b - - 0 1 illegal: No possible last move, all moves rejected
qn3K2/1pRPr3/Nk3bq1/R7/RNn1p1pN/QP1Bb2q/b3P2q/R5r1 b - - 0 2 legal: proof: h4 a5 g4 d5 c4 a4 cxd5 a3 g5 f6 b3 fxg5 Nf3 gxh4 Ng1 h3 Bb2 axb2 a4 Kd7 d4 c5 Kd2 Kc7 Ke3 e5 Ke4 g5 f4 h5 a5 h4 a6 h2 d6+ Kb6 Kd5 c4 d7 g4 Ke6 c3 Kf7 c2 a7 c1B f5 h3 f6 Kb5 d5 Kb6 d6 Bg5 Ra4 Ne7 Nd2 b1Q Ne4 Nd5 Nc5 Be7 Qc1 Re8 Bg2 Ne3 Na6 Nc4 Qa3 Be3 Nf3 Qc2 Rd1 h1Q Ra1 h2 Nh4 Qf5 Be4 Qg6+ Ke6 Qg1 Bd3 h1Q Ra5 Qgh2 Ra4 Qh6 Kf7 Qh3 Ra5 Q1h2 Ra4 Qh5+ Kg7 Qf5 f7 B7g5 f8R Bf6+ Kf7 Re7+ Kg8 Qe8 d8N Qfh5 Nc6 Bf5 d7 Qd8 Re8 Qg6+ Kf8 Qc8 Bb1 Bd3 Bc2 e4 Ncb4 Qd8 Bd1 Bb1 Bc2 Ba2 Bd3 Nc6 Ra5 Rc8 a8R Nb8 Ra7 Rc5 Ra4 Rf5 Ra8 Rf1 Ra7 Rg1 Ra8 Qdc7 Rc8 Qce5 Rc7 Qa5 Nc5 Qb5 R8a5 Qa6 Nf3 Qa7 Nca6 Qa8 Nh4
1qq3Qq/nb2rR1p/Rn1p4/R1N2kP1/1bNPpN1q/B3PR2/1r6/6Kn b - - 1 2 legal: proof: b4 g5 a4 b5 h4 gxh4 e3 f5 Ke2 f4 Kd3 f3 Be2 fxe2 axb5 c5 Ra4 cxb4 Ra2 Qa5 Ra1 Qd8 f4 Kf7 g4 Kg6 c4 e1Q c5 a5 f5+ Kg5 f6 e5 c6 a4 b6 b3 b7 a3 c7 a2 f7 b2 Qb3 h3 Na3 h2 Nc4 Ne7 Ne2 Nbc6 b8N Nd5 Rg1 h1N Nf4 Bb4 f8R d6 Na6 Ra7 Nc5 Qh4 Ke2 b1Q Kf1 Bb7 c8R e4 Ra8 Nb6 d4 Qc8 Rf6 Re8 Rg2 Re7 Kg1 Ra5 Rf8 Rb5 Ra6 Na7 Rf7 Qh8 Ra5 Qc2 Ba3 Qb8 Rg7+ Kf6 g5+ Kf5 Rf1 a1Q Rh2 Qcc3 Ra2 Qab2 Rf3 Qh8 Ne5 Qcc2 Qg8 Qc4 Ncd3 Qc8 Nc5 Qb3 Ra6 Qbe6 Nc4 Qb8 Bc1 Qec8 R2a5 Be1 Ba3 Rb2 Qe8 Bd2 Qg8 Bb4 Rf7+
Brqk4/BnBq2p1/2r2pr1/1p1qN2K/PN3PN1/QP6/q1b4b/R3n2B b - - 1 2 legal: proof: d4 h5 c4 e5 a4 exd4 g4 hxg4 c5 b6 Ra3 b5 Rf3 Bd6 Rf6 Bf8 Rb6 axb6 cxb6 Qe7 Be3 Qf6 Bc1 Qd8 h4 c5 e4 d5 Ke2 c4 e5 g3 Kf3 c3 b7 f6 h5 d3 b3 d2 h6 d4 h7 g2 e6 c2 Kg4 d3 f3 Ra6 Nh3 g1R+ Kh5 Nd7 b8B Nh6 e7 Nf7 Ba3 c1Q Be5 Ng5 Bed6 Qb2 Bg2 Nc5 Nc3 Bf5 Na2 Nb7 Nb4 Qa2 Nf2 Rc6 Ng4 Qc8 Qc1 d1Q f4 d2 Bb8 Bc2 Ba7 Nf3 Qb2 Kd7 e8B+ Kd8 Bf7 Ne1 Bfd5 Rg8 h8N Bc5 Ng6 Bf2 Bge4 Bg3 Ne5 Bh2 Bf3 Rg2 Rf1 Rg1 Bh1 Qf3 Be4 d1Q Qa1 Qdd7 Qb2 Ng2 Ra1 Ne1 Nd5 Ke8 Bh7 Re6 Rb1 Nc5 Ra1 Qa8 Be4 Qd3 Nf2 Rg6 Nfg4 Qd2 Nb4 Ke7 Bb7 Rc6 Na6 Q2d5 Bb4 Qb8 Qa3 Ke8 Ba8 Nb7 Bbc5 Qbd8 Nb4 Q8c7 Bg1 Ke7 Bge3 Rb8 Bec5+ Kd8 Bd6 Qcc8 Bc7+
1Rbqr3/r1qp1n2/3BPNp1/2krB1B1/6Kn/1pb2BP1/P2R4/1R1rn2Q b - - 0 1 illegal: No possible last move, all moves rejected
2R1n2R/4b3/b1PB4/pNnNrp1p/n2P1q2/1R2N2K/P1k1nr1R/Qb5q b - - 0 1 legal: proof: c4 d5 f4 c5 h4 g5 b4 gxh4 e3 e5 bxc5 exf4 c6 Bh3 c5 Bc8 Bc4 dxc4 Kf1 Ke7 d4 Ke6 g4 Kd5 Kg2 Ke4 g5 b5 c7 a5 c6 h5 g6 h3+ Kh2 f3 g7 c3 Ba3 c2 Qc1 Kd3 e4 f2 e5 f1B e6 b4 e7 b3 e8N b2 Ne2 Qd6+ Ng3 Nf6 g8R Na6 Qg5 c1N Qh4 Ne2 Qg4 Qf4 Ng7 Kc2 Bd6 Be7 Re8 Rf8 Nf5 Nc5 Nc3 b1N Nd5 Ba6 c8R Nbc3 Rb1 N3a4 Rb3 Ra7 Red8 Ne8 Qf3 Bg2 Qf1 Be4 Qg1 Rb7 Qa1 Rb5 Nfe3+ Kd2 Nc7 Bb1 Ned5 f6 Ne6 Kc2 Nec7 Rb4 Nb5 f5 Re3 Rb2 Rb3 Rf6 Bb8 Re6 Bd6 Qe3 Nf1 Re5 Rg1 Qf4+ Rgg3 Nf6 Rh8 Ne8 Nfe3+ Kd2 Kh1 h2 Kg2 Kc1 Kh3 Rd2 Nf1 Kc2 Rg2 h1Q+ Rh2 Ng3 Rd8 Rf2 Rc8 Ne2 Nfe3+
1rbbn3/8/2rpPRb1/Rb2n2p/p4NB1/Bq2kPB1/2RP3K/q1Q2Br1 b - - 0 1 illegal: Other
2R1nnN1/1k6/1b1p4/1P1RprQB/p2r1b1b/N3PN2/RKbP3b/4qb1N b - - 0 2 legal: proof: b4 b5 g4 f5 a4 fxg4 Bg2 h5 Bb2 c5 axb5 cxb4 Be5 h4 Bg3 hxg3 Bh3 Rh6 Bf1 Rh8 f4 g5 h4 a5 c4 e5 f5 a4 h5 g2 f6 g3 h6 d6 f7+ Kd7 c5 Kc7 c6 b3 h7 g4 Nc3 b2 Rh4 b1B Ra2 Nf6 Qc1 Ne8 Kd1 Be7 f8N Nd7 Ng6 Nf8 Nh3 g1B Nf2 g2 Nh1 g3 Rd4 Be3 Nh4 g1B Rd5 g2 Nf3 Bf4 Qc2 Rb8 Kc1 Bb6 e3 g1B Qf5 Bh4 Kb2 Bgh2 Be2 Bc2 Qg5 Bh3 Nb1 Bf1 Na3 Kc8 c7 Kb7 c8N Rg8 Qf6 Rg4 Ne7 Rc8 h8R Rc4 Rg8 Rd4 Rh8 Rg5 Ng8 Rf5 Qg5 Qc8 Ng1 Qc4 Bh5 Qe2 Nf3 Qe1 Rh7+ Kb8 Rc7 Ka8 Rcc5 Kb7 Rc8
Q2b1k1K/n1b5/2rppp2/bNb1q3/2nP2BR/r2bR3/3P1RP1/1Nb1N2N b - - 0 1 illegal: No proof kernel
2r1n3/BBN4q/1Pp5/2br1nk1/b7/B1N2rpp/1n2BPNP/1QK1n1Rr b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 f5 g4 fxg4 d4 e6 c4 dxc4 d5 e5 Ra3 Nd7 Rd3 Nb8 Rd4 exd4 Kd2 Ke7 e4 Kf6 b6 h5 b5 g5 d6 a5 d7 g3 b7 h4 b6 h3 Qe2 g2 Nf3 g1N Qd3 g4 Ba3 c3+ Kd1 g3 Qe3 c2+ Kd2 c1R Bd6 d3 Bg2 a4 Bc5 a3 Ne1 a2 Nc3 a1R Bf3 R8a3 Na4 Nh6 Qd4+ Kg5 e5 Rd1+ Ke3 d2+ Nc3 Na6 b8B Qe7 d8N Bd7 e6 Qh7 e7 Ba4 Bb7 c6 e8B Nc7 Bh5 Nf3 Qd3 Ne8 Ng2 Ne1 Rg1 Nf5+ Ke2 Rb3 Ba3 Bc5 Ba7 Rac1 Qb1 Rf8 Nd5 Rf3 Nc3 Rh8 Qb2 Rb1 Qa1 Rb5 Qb1 Rc1 Bg4 d1N Kd2 Nb2 Bh5 Rg8 Bg4 Rg7 Bh5 Rc7 Bg4 Rc8 Ne6+ Kf6 Nc7 Kg5 Bh5 Be3+ Ke2 Rd5 Bg4 Bc5 Bh5 Ned3 Kd2 Rf1 Bg4 Ne1+ Kc1 Rf4 Be2 Rf3 Rh1 Rg1 Nf4 Rg2 Rf1 Rg1 Ng2 Rh1 Rg1
2K1Rqb1/4R1b1/N1b2p2/N1N2nrP/2P2npk/3nRnpR/2r2bP1/6BQ b - - 0 1 illegal: No possible last move, all moves rejected
1B1Q4/r1pPqr2/2Pbn1N1/7n/RP1NR3/K1bnp3/1Np1bb1k/n1R1N3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 h4 g5 c5 gxh4 Bc4 dxc4 g4 Kf7 d4 Kf6 Kd2 Kg5 Kc2+ e3 b4 Kf4 Kb2 h5 g5 e5 d5 a5 d6 c3+ Ka3 a4 d7 c2 b6 e4 c6 h3 b7 h2 f3 Kg3 f4 e2 g6 e1B g7 h4 f5 e3 f6 h3 f7 Ra7 Bd2 Nf6 g8N Rh7 Qh5 Nd5 Qh6 Bf2 Kb2 a3+ Kb3 a2 Nf3 Na6 b8R Bd6 f8N Qe7 Qf6 Rf7 Ka3 Nf4 Ng6 Ne6 Rc1 h1N Nh6 h2 Nc3 Nac5+ Na4 Nb3 Bc3 Ba6 Ne1 Be2 Nf5+ Kh3 Rc8 Ng3 Bd4 h1N Re8 Nh5 Bc5 Kh2 Nd4 Bh4 Bb6 Nf2 Qg5 Nd3 Bc5 Ra5 Ba7 Bf2 Bb8 Ra7 Qf6 Qf8 Qd8 Qe7 Rab1 a1B Rb2 Rb7 Ra2 Bc3 Nb2 Na1 Rf8 Rg7 Rf4 Rf7 Re4 Ra7+ Na4 Nb3 Raa1 Rb7 Nb2 Qh4 Ka4 Ra7+ Kb5 Qe7 Ra5 Rb7+ Ka4 Ra7 Ka3 Na1 Ra4
5r2/1K1p2B1/rbrQN1n1/2PP4/b3nP2/1bRbpRr1/p2R2q1/k1NR2N1 b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 b4 gxh4 b6 c6 b7 Bh6 b5 Bg7 b6 Bf8 Bb5 cxb5 Ke2 Kf7 Ke3 Ke6 Kd4 h5 Kc5 Ke5 c4 a5 g4 h3 g5 h2 d3 a4 f3 e3 g6 e2 g7 e1R Qd2 b4 Ra3 b3 Ra2 h4 Kb5 Kd4 f4 e5 Rb2 a3 Rc2 h3 Ra2 e4 Qa5 b2 Bd2 e3 Ra1 a2 Bb4 Nc6 b8N Qg5+ Ka4 Ba6 b7 Nce7 Qc7 Qg2 Ka5 Bb5+ Kb6 Ng6 Nd2 b1B Na6 Nf6 g8R Ne4 b8R Bc5+ Kb7 Bb6 Bf8 Kc3 d4 Kb2 c5 B1d3 Bg7 Ba4 Qd6 Re2 Nc7 Ra6 Ra8 Bb3 Rgb8 Rf8 Ne6 Rf2 Rd1 Rf3 Rf1 Rg3 Rf3 Ba4 Nb3 Kb1 Nc1 Ka1 Nge2 Bb3 Rg1 h1R Rd1 h2 Rd2 Rd1 Ng1 h1B Ra7 Bc7 Raa8 Rc6 Ra3 Bb6 Nce2 Rb1 Nc1 Ba4 Rd1 Rb5 Rd2 Ra5 Rc3 Ra6 Rd1 Qf2 Rd2 Bg2 Rd1 Bgf1 d5 Qg2 Rd2 Bdc2 Rd1 Bfd3 Rd2 Bcb3 Rd1 Rf6 Rh8 Rf8 Rh2 Qh1 Rhf2 Qg2 Rfd2
N1K2N2/1P3rn1/q3R2n/Q1kp1BnB/4bpn1/4r2B/1rrPNP1p/Bb6 b - - 1 2 legal: proof: b4 c5 a4 b5 h4 bxa4 b5 g5 Ra2 gxh4 e4 d5 e5 Bh6 Rb2 Bf4 Rb4 cxb4 Rh3 Be3 Rh2 Bc5 Rh1 Bd6 exd6 Ba6 Be2 Bb7 Bf1 Bc8 Ke2 Kd7 Kf3 a5 Kg4 h5+ Kf5 e5 g4 b3 c4 b2 b6 Kc6+ d7 h3 c5 h2 g5 h4 g6 e4 b7 a3 g7 e3 Bh3 a2 Nc3 b1B+ Qc2 a1R Na2 e2 Ba3 e1N Ne2 a4 Bg2 h3 Ng3 Qf6+ Kg4 Nf3 Bc1 a3 Rg1 h1N Qc3 h2 Re1 Rh3 Bb2 Ng5 Ne2 Re3 Qa5 Ng3 Bh3 Nf5 Nac3 a2 Nb5 Ngh6+ Kf4 Qe6 g8B Ng7 Nc7 f5 Bf7 Be4 Bd4 Rb1 Ba1 Rb2 Bh5 Qg6 Ke5 f4 Bf5 Ra6 Na8 Rc2 Bc3 a1R Bh3 Rb1 Ba1 Rbb2 Bf5 Qh7 Kf6 Rab6 Ke7 Qg6 Kd8 Qe6 Qa2 Kb5 c6 Kc5 c7 Qc6 Qa6 Qb5 Qa5 Rf6 Ke7 Rf8 d8N Nd7 Bh3 Ne5 Ne6+ Kc4 Kd6 Rf7 Nf8 Bcf5 c8B Neg4 Bd7 Bh7 Kc7 Qa6 Kc8 Bhg6 Bf5 Bh7 Qd8 Kc5 Qa5+ Rb5 Qa2 Bd3 Ng6 Re5 Nc3 Rbb2 Nf8 Rc1 Bd7 Bb1 Qa4 Bhd3 Bf5 Rcc2 Re4 Re6 Ne2 Re5 Rd4 Re3 Re4 Qb6 Re7 Qa6 Re6 Be4 Qa5+
2r1Rq2/r1n1pP1n/2Pp2kR/br3N2/1BpNRK1b/3Q4/N1RP4/br5b b - - 0 1 illegal: No proof kernel
1K3bnb/1NBp3B/3P1r2/bb2N1p1/1PqNp1kr/4Pq2/Q7/RrbN3B b - - 0 1 legal: proof: b4 a5 g4 axb4 g5 b5 c3 b3 g6 b2 Nh3 b4 Na3 b3 Ng1 Na6 Nb1 fxg6 Bh3 g5 Bf1 g4 a4 h5 d3 Nb4 cxb4 Rh7 Na3 Rh6 Be3 Rh8 Rc1 g3 Rc4 Bb7 Rf4 Bc8 Rg4 hxg4 Kd2 Kf7 Kc3 Ke6 Kd4 Kf5 Kc5 b1Q h4 g5 f4 b2 h5 g2 d4 c6 h6 g3 d5 e5+ d6 Ra7 h7 Qc7 a5 Qa1 a6 b1R Nh3 g1B Qb3 g2 Nf2 Nf6 Nd1 Bf2 Nc4 g1B Na5 Nh5 Nb7 Qa3 Qa2 Ra8 a7 Kg4 f5 Nf6 Bd4 Rb8 a8B Ng8 f6 Qf3 f7 Be1 Bg2 Bgf2 Rf1 Bc3 Bh1 e4 Be3 Bfg7 f8N Bb2 Ne6 Bf8 Nd4 Ba1 Nd8 Ba6 Nb7 Bb5 Re1 Qc8 Kb6 c5 Ka7 c4 Rf1 Qc6 Re1 Re8 Rf1 Re6 Kb8 c3 Re1 c2 Rf1 Ne7 Re1 Rg8 h8N c1B Ng6 Qc4 Rf1 Rh8 Ne5+ Kh5 Rg1 Ng8 Nc2 Bc3 Nc5 Rhh6 Nf7 Bh8 Bd5 Ne7 Nb7 Ref6 Ne5 Ra1 Nc3 Bb2 Bb6 Rd1 Ba5 Bb6 e3 Bd8 Be6 Ng8 Bf5 Ra1 Rb1 Bc1 Bh7 Kh4 Nd4 Kh3 Nd1 Rh4 Bb6 Kg3 Bc5 Ba5 Bb6 Kh3 Bc7 Kg3 Nf7 Kg4 Qa3 Ra2 Ra1 Rb2 Qa2 Rb1 Ne5+
1Rnbb2B/1P2Bq1q/p4p2/qBrp2Qb/P3B1q1/R4Pr1/K3N3/3k1R1q b - - 0 1 legal: proof: d4 b5 c4 bxc4 g4 h5 d5 f6 g5 Nc6 g6 Ne5 Nd2 Nf7 Ndf3 e6 gxf7+ Ke7 Ne5 exd5 Ng4 hxg4 Bh3 d4 Bg2 Rb8 Bf1 Ra8 Kd2 Ke6 Kc2 Kd5 Kb1 Ke4 a4 c5 b4 g5 h4 d5 b5 a6 e3 g3 b6 c3 b7 g4 h5 c2+ Ka2 d3 h6 c4 h7 c3 Rh2 g2 Bb2 c1Q Kb3 g3 Qe1 c2 Ra3 d2 Ba1 d1B Ra2 Qb1+ Bb2 Bd7 Rh3 Bh5 Ne2 Kd3 e4 c1Q e5 g1Q f3 g2 e6 Qa5 e7 Qcc7 e8B Qh1 Qb4 g1Q Qh4 Kd2 Qg5+ Kd1 Rh2 Be7 f8R Qg4 Rf2 Rc8 Ra3 Bd8 Bg6 Be8 Be4 Ne7 Rg8 Qbc2+ Ka2 Qd3 Rf8 Rg8 h8B Qcd7 Be5 Rc5 Bd6 Nc8 Be7 Qde6 Bg2 Qf7 Bh3 Qf4 Bd7 Qg4 Bb5 Rg7 Bh7 Qdf5 Bg6 Qd7 Be4 Qdf5 Rg8 Qh7 Kb3 Qge6 Bed3 Bb6 Rf8 Na7 Qe5 Bd7 Qf4 Rg3 Be4 Qg4 Rb8 Bd8 Qg5 Be8 Ka2 Nc8 Rf1+
1B2q3/1Pbk3b/2n3pp/Q1R1nN1q/1qB3p1/b2r2PP/Kn2nNN1/B6N b - - 0 1 legal: proof: c4 b5 b4 d5 e4 dxe4 Nc3 a5 Qh5 axb4 Nb1 b3 Qd1 b4 a4 f6 Ra2 Ra7 Rc2 Rb7 Rc3 f5 Rg3 Rb6 Rg4 Rb5 cxb5 fxg4 d4 c5 Kd2 e5 f4 c4 f5 g6 h3 b2 Kc2 e3 a5 e2 a6 e1Q b6 h6 a7 e4 a8N c3 Kb3 c2 b7 e3 d5 e2 f6 Nc6 d6 Bf5 f7+ Kd7 Qd5 Qeh4 Nc7 e1Q Ka2 Qde8 Nc3 b1N Qa5 Na3 N7b5 Be6+ Bc4 Nge7 Nge2 Ne5 Bf4 c1B Nbd4 N7c6 Ne4 Qh5 N2g3 Rh7 Ndf5 b3+ Ka1 b2+ Ka2 b1N Nf2 Be7 f8B Bg8 Bg7 Bd8 Rg1 Bc7 Ngh1 Rh8 g3 Qb4 Bf6 Bb2 Rc1 Bh7 Rc2 Nd2 Rc3 Ndf3 Bg7 Ng1 Rc1 Kd8 d7 Ne2 Rc2 Nb5 Rc3 Ba3 Rc2 Nd6 Rc1 Nd3 Ba1 Nf7 Rc2 Nfe5 Rc1 Bb6 Rc2 Kc7 d8N Kd7 Ne6 Bc7 Rc1 Nb2 Rc3 Nf7 Bd6 Rg8 Nf4 Nfe5 Ng2 Rg7 Bf7 Rg8 Rc5 Rf8 Bc4 Rf7 Ng7 Rf3 Nf5 Rd3 Ng7 Bb6 Bb8 Bc7 Nf5
7Q/b1BN3q/1p3RNp/bPqNq3/q1bnPrn1/1p4KP/2k2B2/2nN1B2 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 f5 g4 a5 d4 cxd4 b5 Ra6 Ra3 Rf6 Rh3 exf4 Rb3 f3 Rb2 f4 Rb4 Rf5 gxf5 axb4 Kf2 Kf7 c4 Kf6 e4 Ke5 a5 g5 f6 d5 c5 h6 h3 d3 c6 Kd4 a6 g4 a7 g3+ Ke1 g2 Kf2 b3 a8N d2 f7 Qd6 c7 Qe5 Bd3 Nc6 Ba3 Be6 c8N Bb4 f8B Nf6 Na7 Ba5 Bfb4 Rf8 Qe2 d1Q Bd2 Qc1 Nc8 Qc5 Ne7 Ng4+ Ke1 f2+ Kd1 f1Q+ Qe1 f3 Bg5 f2 Nb6 Rf4 Ne2+ Ke3 Rh2 g1B Ng6 Nd4 Nbc3 Qg2 Bd8 f1N Qh4 Ng3 Ke1 Qf3 Bc7 Bf7 Nc1 Nge2 Na2 Nc1 Nb4 Bf2+ Kf1 Kd2 Qd8 Qg3 Qf6 Qh4 Qg7 Qhe7 Kg2 Bg8 Qf8 Qh7 Bf1 Bg1 Nd1 Bf7 Nc6 Kc2 Nb4+ Kb1 Bb2 Ne6 Qh8 d4 Nh4 d3 Nc6 d2 Na4 Qa3 Ne3 Rf3 Nc5 Qa4 Bd4 Rf5 Ne7 d1Q Nhg6 Qc2+ Be2 Qcc4 Nd1 Kc2 Nd7 Qcb4 Bf1 Rf6 Ba1 Ba7 Bd4 b6 Be3 Qbc5 Bg1 Qg5 Kg3+ Rf2 Rg2 Nd4 Rh2 Bc4 Nd5 Re2 Rf2 Qe5+ Kh4 Rd2 Rf6 Rd3 Bf2 Rf3 Rf8 Rf5 Rf6 Rf4 Kg3
1K1Rk2n/R1r5/1b2N3/Q6q/pN2NRpp/2rB3P/p2qn1PP/1qRn3b b - - 0 2 illegal: Other
b4b2/1PB2B2/3pk1N1/1K1p3R/pPQB2nq/2rn1q2/1RpPb1B1/r2R1r2 b - - 0 1 illegal: No proof kernel
r5Bn/n1n1rQNp/2BppqPb/Pk3qNb/N6B/3p2rP/7K/5RN1 b - - 0 1 legal: proof: b4 c5 a4 a5 d4 axb4 f4 cxd4 e4 g5 e5 f6 Ra3 Bh6 Rf3 Bg7 exf6 Bh6 f5 Bf8 Rf4 gxf4 Kf2 b5 g4 b3 Kg2 b4 c4 d3 a5 b2 g5 d6 h3 Kd7 c5 Kc6 g6 b3 f7 f3+ Kg3 f2 f6 Kb5 c6 Bh6 f8N Na6 f7 Nc7 Qc2 Bg4 Bg2 f1Q Kh2 Qf5 Ne6 Bh5 f8N Ra7 Ng5 Ra8 Nd2 b1R Nc4 b2 Nfe6 Qdf8 Nb6 Q8f6 Ng7 e6 Qf2 Re8 Na4 Re7 Bd2 Ra1 Be1 b1N Qf4 Na3 Bh4 Re1 Qf2 Re3 Qf1 Nd5 c7 Rg3 c8B Nc7 Bcb7 Kc4 Qf2 Nab5 Bgc6 Na7 Be8 Kb4 Bf7 Kb5 Ne4 Bg5 Ba8 Nh6 Bg8 Nf7 Qf1 Bh6 Ng5 Ne5 Bf7 Rd8 Bg8 Nf7 Qf2 Nh8 Bc6+ Kc4 Qb6 Ra8 Qb7 Ncb5 Qd7 Nc7 Qe8 Kb4 Qf7 Kc4 Ne2 Kb4 Rf1 Kc4 Ng1 Kb4 Bf3 Kb5 Bc6+
n3n2b/K3N2k/1Bp3N1/2pp2RB/Qn1P1bB1/1B2r2r/p1P1q1P1/n2N3n b - - 1 2 illegal: No proof kernel
qn4r1/kpPNQK2/p2brB2/B2Nb1B1/r1P1b2p/P3n2r/2p1B3/R6N b - - 0 1 legal: proof: c4 f5 h4 c5 e4 fxe4 b3 g5 a3 gxh4 Ra2 d5 Rc2 d4 b4 Bg4 bxc5 Bc8 Rc3 dxc3 Ke2 Kd7 Ke3 Kc6 Kf4 h5 Kg5 e5+ Kg6 e3 d4 a6 g4 c2 f4 h3 d5+ Kc7 d6+ Kc6 d7 h4 f5 e4 f6 h2 g5 e2 f7 e1B Qe2 e3 Nc3 Be7 f8B Nf6 Nd5 Bd6 Bg7 Rh5 Kf7 Bc3 g6 Ng4 Bf6 Bce5 g7 Qh8 d8B Bf5 g8N Be4 Qe1 e2 Nh3 Ne3 Nf2 Rg5 Qb4 e1R Be2 Rf5 Rg1 h1R Ba5 Rh3 Nh1 Ng4 Bf4 Ba1 Rg2 Nd7 Bc7 Be7 Nh6 Re8 Bg5 Rg1 Nf4 Ne3 Ng4 Bf8 Bh6 Re6 Rf2 Be7 Rf1 Qa8 Rc1 Bb2 Ra1 Nb8 Bb6 Rg5 Bd8 Rb1 Nd5 Rg8 Bhg5 Bf8 Ba5 Be5 Bg7 Be7 Ngf6 Rb3 Nd7 Rb2 Qa4+ Rb5 Qb3 Rb4 B7f6 Ra4 Qb4 Bf8 N5b6 Kc7 c6 Nd5 Qe7 Ne3 Qe8 Bb4 Qe7 Bbd6 Nc5+ Nd7 Nd5+ Kb8 c7+ Ka7 Bg7 Nb8 Nd7 Bd4 Bh8 B4e5 Bhf6
1n1N4/p4r2/r2pqB1R/b1RNb1RK/r3P1P1/5p2/r1bPn1p1/3NQ1kN b - - 0 1 illegal: No proof kernel
2r3q1/NN1b1pP1/1K1Rp2b/Bp5R/4pNr1/nR3R1P/3QnP1n/rk1n4 b - - 0 1 illegal: No proof kernel
8/2pB2KR/N1Pr2N1/1R1rpkP1/3pqprr/1R1P3b/R1b2q1N/1nQ4n b - - 1 2 legal: proof: e4 f5 b4 fxe4 f4 a5 f5 g5 Bb2 axb4 h4 Ra6 g4 Nf6 Be5 Rd6 Bf4 gxf4 g5 Ng8 g6 Ra6 Qh5 Bh6 Qd1 Bg5 hxg5 Ra8 Ke2 d5 a4 Kd7 c4 b5 f6 Ke6 g7 h5 c5 h4 a5 h3 c6 d4 a6 h2 d3 b3 f7 b2 f8R e3 Kf3 b4 Kg4 b3 a7 e2 Ra2 e1Q Qf3 Qd5 Ra4 Rh6 Nd2 b1R Ra3 b2 Rd8 Qf2 Bh3 Na6 Qd1 Nc5 Ngf3 Ne4 Rb3 Nc3 Ne4 Rf6 Qc2 Rg1+ Kh5+ Rf5 Kg6 b1B Qc1 Bc2 Re8 Nf6 g8N Nb1 Kg7 Bd7 Bg4 Rd8 a8R Rg2 Ra2 Nh5+ Kh8 Ng3 Kg7 Bc8 Bh5 Rd6 Rf8 Bd7 Rfb8 Rg1 R8b5 Qe5+ Nef6 Qe4 Nd5 Rg2 Nb4 Rfd5 Be8 Bc8 Re1 h1R Na6 Rh6 Re3 Nh1 Nh2 Ke5 Rh3 Be6 Rh4 Bh3 Rh5 Kf5 Rh4 e5 Ne7+ Ke6 Rh5 Rg4 Ng6 Kf5 Nf8 Rhf6 Rh7 Rh6 Ng6 Rhh4 Bd7+
5N2/nbp2r2/1p1RPb1q/p5Nb/rQN3N1/1Kn3p1/PRP4k/B1qb2R1 b - - 1 2 legal: proof: f4 g5 b4 h5 d4 e5 g4 Bg7 Bh3 gxf4 g5 Bf6 Bg4 hxg4 b5 Be7 dxe5 Bc5 b6 Bxb6 Nh3 Bd4 Ng1 Bb2 Kd2 Ke7 e4 Ke6 h4 f5 h5 d5 h6 d4 h7 g3 g6 b6 g7 d3 Nc3 f3 Rh5 f2 Rg5 f1Q Qg4 Qf6 Na4 Nc6 Nf3 Nge7 g8R Qh6 Rd8 Rf8 h8N Rf7 Ng6 Nd5 Qh4 Bd4 Nb2 f4 Nc4 Nc3 Bb2 Bb7 Rb1 a6 Ba1 Na7 Re1 Qh1 Kc1 d2+ Kb2 d1B Kb3 Qg1 Rh5 Qe3 Rg1 Qc1 Rd5 Bc5 Rf5 Be7 Rb5 Bf6 Nf8+ Ke7 Ng5 f3 e6 f2 e5 f1B Rf3 Bfe2 Rd3 Bh5 Rdd5 a5 Rb4 Rd8 Rd2 Rd4 Qf4 Kd8 e7+ Kc8 e8N Kd8 Nfe6+ Kd7 Nf8+ Kc6 e6 Kc5 Nh3 Kd5 Qd6+ Ke4 Ng5+ Kf5 Rb5+ Kg4 Qb4 Rf4 Rd6 Kh4 Ng7 Rd4 Nf5+ Kg4 Nfe3+ Kh4 Ne4 Kh3 Ng5+ Kh2 Qa4 Rd5 Ne5 Ne4 Kc4 Qd2 Rb2 Rd4+ Kb3 Nc3 Qa3 Ra4 N3c4 Qf4 Qb4 Qc1 Ng4+
1nr2B2/8/2qn1r1p/nQ1pB1rP/1R2b1NP/p1pBq3/P1BR1R2/3K2kq b - - 0 1 legal: proof: d4 b5 e4 e5 c4 bxc4 h4 Be7 h5 Bh4 g3 f6 gxh4 exd4 e5 f5 Nd2 Na6 Ne4 fxe4 Bf4 Nb8 Be3 Na6 Bc1 Nb8 b4 Kf7 f4 Ke6 b5 Kd5 e6 c5 b6 g5 f5 a5 e7 h6 e8B a4 b7 d3 f6 Kd4 f7 d5 f8R a3 Rf3 d2+ Ke2 c3 Bd7 g4 Re3 c2 Reh3 g3 Bc6 c4 Rb1 g2 Rc3 e3 Qe1 Qb6 Rh3 Ne7 Ra1 Rf8 Bd7 Rf6 Qf2 Nf5 Rb1 Qc6 Bb2 c1N+ Kd1 Nb3 Rf3 Nd6 Bf5 Na5 Bc2 Bf5 Nh3 g1R Qe2 Rg5 Rd3+ Ke4 Bd4 c3 Rf2 Bh7 Bc5 Bg6 Ng1 Bh7 Nf3 Kf4 Ra1 Kg3 Rb1 Bf5 Ne5 Be4 Bg2 Kh2 Bf1+ Kg1 Rb4 Na6 Ng4 Rc8 Rdd4 Nb8 Qb5 Nf5 Bfd3 Nd6 Bb3 e2+ Kc2 Nd7 b8B e1Q Ba4 Qe3 Kd1 Nf7 Bg3 Nb8 Bf8 Nd6 Be5 Qh3 Bac2 Qh1 Ke2 d1Q+ Ke3 Qc1+ Ke2 Qe3+ Kd1 Qe8 Bc4 Qd7 Rdd2 Qc6 B4d3
1Bq1B2R/qppPq2n/1p4q1/bk1n2BR/1P2p3/1QP1q3/1r5N/1RrR1K2 b - - 0 1 illegal: manual, there are no spare captures for axb8B
NN4N1/2p2k2/1n2P1R1/p1Kb2p1/R2rR1Pr/Q1p3br/PnNbb2b/2B5 b - - 0 1 legal: proof: e4 d5 f4 dxe4 c4 b5 Nh3 bxc4 Ng1 e3 Nf3 e6 Ng1 e5 g3 h5 Bh3 h4 Nf3 e4 Bf1 h3 Bg2 Qd5 Ng1 Qe5 fxe5 hxg2 Ke2 g5 d4 a5 h4 f5 b4 f4 d5 c3 g4 Bc5 b5 Ba3 d6 Bf5 b6 Nd7 b7 Nc5 b8N Rh6 d7+ Kf7 d8R Ne7 h5 Nd3 Qa4 Nd5 Nf3 g1B Nfd2 Bh2 Nc4 Nb6 Rd4 Be6 Rf1 Bc5 Nba3 Nb2 Nc2 Bd5 Qa3 Rh7 h6 f3+ Ke1 f2+ Ke2 Rh8 h7 Ra6 Rh1 Bg3 Rh4 Bh2 Rh6 f1B+ Ke1 e2 Kf2 e1R Rg6 Rd1 Ke3 Be2 Rb1 N2a4 Rb4 Nb2 Ra4 Rh1 Rc6 Bg3 Rd6 Rh4 Rg6 Nd7 Nb6 Ra8 Na6 Rad8 Na8 Nb6 Nb8 Bh2 Qb3 Ba3 Rdb4 Rd7 Kd4 e3 Kc5 Bd1 Kb5 e2 Re4 e1B Qb4 Bd2 Qb3 Bc5 Qa3 Be6 Kc6 Bf2 Kb5 Rd3 Kc6 Bfg3 Kc5 Rhd8 h8N+ Ke8 Qb4 Be2 Nf7 R8d4 Nh6 Bd5 Ng8 Kf7 Qb3 Bgf4 Qb4 Rdh3 Qa3 Bfg3 e6+
K2b2R1/1n1N2k1/1b1rb3/pNr3q1/pp1P3N/2pR3n/pPQ1Pr2/5BRR b - - 0 1 illegal: Other
1nb1b1Bn/K2B1n2/p2r2N1/NRN4q/1BP1pN2/1pr1P3/Pkpp1Q2/5q2 b - - 1 2 illegal: No proof kernel
2Nr1r1k/2Kb1p2/5Pq1/n1N1RpP1/Rr2Pp1R/2r5/NpR1p2Q/2b2n1B b - - 0 1 illegal: No possible last move, all moves rejected
q2Rn3/r3Rp1n/2qQ3p/N1PRK3/1p1r1P1P/B2pRq2/2p2N2/Nr1k1b2 b - - 0 1 illegal: No proof kernel
2r3r1/rR1N2N1/Bn2ppp1/3Q2np/3RP1PP/Kb2b2r/R3pk2/2N1N1rq b - - 0 1 illegal: No proof kernel
3rb1N1/4qB2/1RQr2rn/P3n2b/4BN2/nK2P3/Q2Pn2k/B4B1b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Bh3 exf4 Bg2 Na6 Bf1 Nb8 gxh5 g5 h4 c6 dxc6 g4 a4 Be7 Ra3 Bg5 hxg5 bxa3 c7 Kd7 h6 Kd6 g6 Ke5 a5 f5 g7 b5 h7 a2 Qa4 a1R Kd1 g3 Kc2 g2 Qc4 b4 Qd3 b3+ Kb2 f3 Qa6 Kf4 e3+ Kg3 Be2 f2 Qc6 f1B Bd1 f4 Qd5 f3 Rh4 f2 Rf4 Bd7 c8B Nh6 g8B Ra6 Rf6 Nc6 Nh3 g1N Bf3 Qe7 Be4 Ne5 Rb6 Bg2 Bf7 f1B Nf4 Ne2 Qc6 Be8 Nc3 Kh2 Bh3 Bh1 Ncd5 Ra4 Bhg2 Rd4 Nf6 Rd6 Ng8 Rg6 Bh3 Rd6 Ka3 b2 Kb3 b1N Bb2 Na3 Bc3 Bfg2 Ba1 Bf3 Bf1 Bg4 Nf6 Rg8 h8Q Bh5 Qh7 Rg6 Ng8 Ra8 Qh8 Rb8 Qf6 Ra8 Qe6 Rad8 Qec4 Kg3 Qc2 Kh2 Qa2
K3R1qr/N2rnPpR/3kr1n1/4P1r1/Rp2R2P/2Q1q1B1/6q1/b1Q3B1 b - - 0 1 illegal: No possible last move, all moves rejected
Bk6/1br5/bP2QKpq/P2B3Q/r1N4N/pNrN3P/1R1p4/3bnn2 b - - 0 1 legal: proof: d4 f5 g4 a5 e4 h5 exf5 b6 b3 a4 Nc3 a3 Nb5 c5 gxh5 cxd4 Rb1 Ra6 Rb2 axb2 a4 Ra8 f4 e5 Be3 Bd6 Nc3 b5 Nb1 Bc7 Bd2 e4 Bb4 Be5 Ba3 b4 fxe5 bxa3 b4 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 d5 c4 Kd7 a5 Kc7 f6 e3 Kf3 g6 Kf4 e2 Kg5 e1R h3 d3 e6 d2 b5 d4 c5 d3 b6+ Kb7 e7 Qf8 e8N Be6 f7 Na6 c6+ Kb8 c7+ Kc8 h6 Nf6 h7 Rb8 Qg4 d1B Nf3 Re3 Rh2 Nh5 Nh4 Ng3 Nd2 b1B Kf6 Nc5 Nb3 Rb7 Rb2 d2 Bc4 Nd3 Bd5 Qh6 f8N Nf1 Nd7 Ne1 Ndc5 Rc3 Nd3 Bf5 Qh5 Be4 Qe2 Ra7 Ba8 Bb7 Nd6+ Kd7 Nc4 Kc8 Qe4 Rd8 Qe3 Rd4 Qe5 Bbc2 Qe3 Be2 Qe7 Bcd1 h8Q+ Qf8+ Qf7 Rg4 Qh5 Qh6 Nce5 Ra4 Nc4 Bg4 Qfd5 Ba6 Qf7 Bd7 Bd5 Bc6 Qe6+ Kb7 c8B+ Kb8 Bd7 Rc7 Be8 Bcb7 Bec6 Bc8 Ba8 Bcb7 Qeg4 Rc8 Qgf5 Rc7 Qe6
k2N4/P3K1R1/1P1p3b/1rPb4/1pNN4/1qr2r2/1p1QQnnN/4B1bR b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 a5 Qc7 Ra2 Qb6 Ra1 Qd8 b4 b5 Bd3 Qb6 axb6 a5 Bc4 a4 Bb3 Ra5 bxa5 axb3 Kd2 Kd8 Kd3 e5 Ke4 h5 Kd5 d6 c4 b4 f4 h3 g4 e4 f6 h4 f5 b2 a6 d3 a7 d2 g5 e3 g6 e2 g7 e1B f7 h2 f6 h3 Qe2 Bf2 Qe5 d1Q+ Bd2 Bb7+ Ke6 Kc8 Nf3 Rh5 Re1 h1R Nh4 h2 Nf3 Na6 Na3 Ne7 g8Q Nf5 Qg2 Qb3 Rg1 Bh6 f8N Ne3 f7 Nc5+ Ke7 Ne4 Ne6 Rg5 Qf4 Rb5 f8N Bd5 c5 Kb7 Ned4 Ka8 Qfg5 Bc4 Q2g4 Bd5 Rg2 Rg1 Nc4 h1R Nfe6 Rf1 Nd8 Rh3 Nh2 Rc1 Qe6 Rc3 Rh1 Rf3 Be1 Bg1 Qf4 Nf2 Rg7 Ng2 Qe2 Nh4 Qc1 Ng2 Qcd2
K1B4N/3RQ1n1/5knq/1n2Rp2/2R1P1R1/1p1r1PP1/p2Q1qn1/bN2b3 b - - 0 1 legal: proof: b4 e5 c4 c5 g4 b6 g5 b5 a4 cxb4 g6 Qh4 Bb2 Qd8 d4 exd4 Bc3 dxc3 axb5 Bd6 Qd5 Bc5 Qd1 Bf8 Bg2 a5 Qc2 f6 Qa4 Bb7 Bf3 Bd5 Bh5 Bf7 gxf7+ Ke7 Bf3 g5 Bg2 g4 Qd1 g3 Bf1 g2 Ra2 Ra6 Ra1 Rd6 Ra4 Rd3 Ra1 Rg3 hxg3 Qe8 Nh3 Qc8 Ng1 Qd8 e4 h5 Ke2 d5 Kf3 b3 c5 a4 c6 a3 c7 f5 c8Q a2 b6 c2 b7 c1N Rh2 d4 Qd7+ Kf6 Bb5 h4 Na3 h3 Qc7 d3 Bd7 d2 Kf4 Ne7 f3 Na6 b8R Bg7 Ne2 g1B Rc8 Nc5 Nb1 Bf2 Qa7 Qb6 f8R+ Kg6 Rce8 Be1 Rg8 Kf6 Bc8 N1d3+ Ke3 Ng6 Kd4 Rh6 Kd5 Ne6 Nf4 Qf2 Kc6 Bh8 Kb7 Ng7 Rg2 h2 Ka8 h1Q Re5 Qh2 Qc1 d1N Qd2 Nc3 Qc7 Nb5 Qd7 Ne7 Ng6 Nf4 Qa7 Qh5 Rh2 Ng2 Rh4 Ne8 Rg4 Ng7 Rd8 Qg5 Rdd5 Rh1 Rd7 Qh6 Na3 Rf1 Rc1 Rh1 Nb1 Rf1 Nf8 Ng6 Rc4 Ne7 Rd8 Nh5 Rf4 Kg7 Qc2 Bc3 Red5 Rd1 Ng6 Be1 Rg4 Rd3 Qd2 Kf7 Re8 Ba1 Nh8+ Kf6 Re5 Ng6 R8e7 Ng7 Qc5 Ne8 Rd7 Ng7 Qe7+
2N5/bkN3q1/N4r2/q1Q1bp1P/7Q/B1P1K1Pb/p2p1Rq1/n1b1NR2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 g3 exf4 c3 d3 Bh3 Ke7 Be6 Ke8 Bb3 Qg5 Ba4 Qd8 Bc2 dxc2 g4 a5 Nd2 h5 Nb1 h4 Kf2 Rh5 gxh5 Ra6 Kf1 Rh6 Ke1 Rh8 Na3 g5 Qd6 g4 Qf6 g3 Qd6 g2 Nb1 Na6 Qd1 Nc5 Qd2 Ne4 Qd1 Ng3 hxg3 Rh6 Rh2 Rh7 Rh1 Rh8 Kd2 d5 b4 Kd7 e4 Kc7 b6+ Kb7 e5 d4 e6 a4 b5 f3 e7 h3 e8Q f2 Nf3 g1B Rh2 f1Q Qe6 d3 Qee2 a3 Qe8 a2 Rf2 h2 Ba3 h1Q Qe3 Qhg2 Qc5 Rh6 Ke3 c1B+ Nbd2 Bd6 Qa4 Bh3 Ne1 Rf6 Qh4 Be5 Rb1 Nh6 Ra1 Bb2 Ne4 d2 Rb1 Bc1 Nd6+ Kb8 b7 Qa5 Ra1 Qc4 Nc8 Qg4 Rb1 Qg7 Ra1 Rb6 Rb1 f5 Ra1 Rc6 Rb1 Kc7 b8N Kb7 b6 Rf6 Na6 Ng4+ Kd3 Ne3 Nc7 Kb8 b7 Nc2 Ke2 Na1 Ke3 Qb6 Ne7 Ka7 b8N Kb7 Nba6 Qb5 Nc8 Qb6 Rb4 Qb5 Rf4 Qa4 Kd3 Qa5 Rf1 Bgd4 R4f2 Be3 Qcb4+ Bb6 Qc5 Ba7 Ke3
N1Qnq3/6q1/1RQ1p2k/1K2BPPB/3ppq2/1B3N1n/2n1pPqr/5B2 b - - 0 1 illegal: No possible last move, all moves rejected
2nr1Q2/4n3/P2rn3/Q5R1/KPbBBPn1/4Q1qn/1kn1N3/3NrbQb b - - 0 1 legal: proof: h4 b5 e4 g5 b4 gxh4 c3 a5 Qb3 axb4 Qa4 f5 Qd1 b3 exf5 b2 a4 d5 d3 b4 Be3 b3 Na3 Bg7 Rc1 Bd4 Rc2 Bc5 Rc1 Bb4 cxb4 Nf6 Rc5 Ng8 Rc4 dxc4 Kd2 Kd7 Kc3 Kc6 g4 Kd5 f4 b1R d4 e5 g5 c5 g6 h5 f6 b2 f7 h3 f8Q h2 a5 h4 a6 e4 g7 h3 Nb5 Nd7 Qh5+ Qg5 Na7 Nb6 Qg6 Be6 Bg2 Ne7 g8Q Rh6 Ne2 Nbc8 Ng3 Re1 Qff6 b1B Qfg7 Bd3 Nc6 Bf1 Rg1 h1N Kc2 h2 Q6f6 c3 Kb3 c4+ Ka3 c2 Bf2 c1N Na7 c3 Bh3 Kc4 d5 c2 d6 e3 d7 e2 d8Q Nb3 Qfg6 c1N Qb1 Nd4 Nf5 Kc3 Qge8 Nd3 Bg2 Bc4 Ka4 Rd6 Qa5 Ne5 Ng3 Ne6 Qgf8 Ng4 Be4 Qg6 Qd1 Kb2 Nb5 Qg5 Ba7 Nhf2 Nc3 h1B Bd4 Nh3 Rg2 Na7 Rg1 Rad8 Rg2 Nec8 Qee7 Nc6 Qa7 Qg8 Qd3 N6e7 Qe3 Rd1 Rg1 e1N Nge2 Nc2 Rg3 Re1 Qg1 Nh6 Rg5 Qg7 Bf6 Ng4 Qae3 Qg6 Bd4 Qg8 Rf5 Qg5 Re5 Qh4 Rg5 Qg3 Nd1+
r5bq/B1b5/3nkPq1/2qN2Rn/1N4b1/1Kn2PQ1/P1Brnb1N/1N4Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 c4 gxh4 Qf3 d5 cxd5 f5 exf5 b3 Qe2 b2 Qd1 bxa1Q d4 Kd7 Kd2 b5 Kc2 h5 g4 c5 g5 e5 d6 h3 g6 h4 f6 b4 g7 c4 d5 h2 Na3 c3 Nf3 h3 Nb5 b3+ Kd3 c2 Kc4 e4 Bf4 c1Q+ Qc2 e3 Bd3 e2 Bg5 e1B Bh7 b2 Rg1 h1B Qc3 b1N Nh4 h2 Kb3 Ne7 g8N Nf5 Qe3 Qc5 Nf3 Nc3 Ne7 Nc6 Na3 Qe8 Qc1 Qg6 Be3 Bh6 Nb1 Bf4 Rg4 Rd8 Rg5 Bg2 Qd1 h1N Nh2 Nhg3 f3 Bf2 Qe1 Bh3 Qg1 Nh5 Qg3 Bg4 Qg1 Ke8 d7+ Kf7 d6 Ke6 Nd5 Ba6 Na3 Qf1 Nb1 Qh3 Qg3 Ne5 Qg1 Nfg3 Bd4 Nge2 Qg3 Rh8 d8Q Nc4 d7 Nd6 Qb6 Rhd8 Qa7 Nc8 Be3 Bc7 Qb6+ Nd6 Bd4 Qh6 Bc2 Bd3 Be3 Bh7 Bd4 Bg8 Qa7 Re8 Qb6 Qg6 d8N+ Kd7 Nc6 Red8 Nb4 Ke6 Bd3 Ng7 Bc2 Qh8 Qb5 Nh5 Qd3 Qc6 Ba7 Qc5 Qd1 Nde4 Ne3 Rd2 Qdg1 Nd6 Ned5
2nq1bn1/4BK2/NNkP2B1/1b6/1q5R/qr2bQ2/NPr2bP1/1n2NQq1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 exf4 e4 g5 Ra3 gxh4 Re3 fxe3 Ke2 Kd7 Kf3 a5 Kf4 f5 Ke5 c5 d4 h5 b6 c4 b7 f4 d6 a4 d5 h3 Qe2 f3 Qf2 a3 Qe1 a2 Kf5 a1Q Kg6 h2 e5 h4 Qd1 f2 Qd2 e2 Qd3 e1B Kf7 h3 Nc3 Nc6 b8Q Nce7 Na4 c3 Qb1 c2 Nf3 Qa3 Bg5 c1B Qb3 Ba6 Bd3 f1N Bg6 Nc8 Be7 Bf2 Ne1 Nd2 Qf3 Bb5 Qbd3 Rb8 Qde2 Nb6 Qf1 Nb1 e6+ Kc8 d7+ Kb7 Qd1 Bce3 d6 Nc8 Nb6 Kc6 Qde2 Rh4 Qf3+ Re4 Bg5 Qb4 e7 Qa3 e8N Rb7 Q3e2 Rc4 Nc7 Rc2 Be7 Qb4 Na6 Qa3 Rg1 h1Q Qd1 Qh2 Rh1 Qe5 Qde2 h2 Qh5 Qe4 Qf3 Qc7 Nd5 Qeb4 d8N+ Kd7 Nc6 Qd8 Na5 Rb8 Nb3 Kc6 Nc1 Rb6 Na2 Rb7 Rg1 h1Q Nb6+ Qe4 Qf5 Qeb4 Qf4 Qh2 Rh1 Qg1 Rh4 Bc4+ Nd5 Qc5 Bh5 Rb3 Bg6 Qcb4 Qf3 Bb5 Nb6+
5r2/P1K2bP1/q2BR1qk/2nqn1q1/b3nN2/2N3Q1/1P1Q2R1/1Qnr2Qb b - - 0 1 illegal: No proof kernel
q1B5/1rnBP2r/N2Q1n2/kP2K1n1/b1rB3r/b2PN2B/1n1Q3n/2n2R2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 dxc4 Ra3 exf4 Rb3 Qf6 axb5 Ne7 b6 Ng8 b5 Qd8 Rb4 axb4 Kf2 Kd7 Kf3 c5 Ke4 h5 g4 f5+ Kd5 f3 e4 f4 d3 c3 g6 c2 g7 b3 g5 c4 e5 c3 g6 f2 b7 Kc7+ Ke4 Kb6 e6 f3 Ba3 c1N Qd2 h4 Kf4 h3 Ke4 h2 Qe3+ Ka5 Nd2 b2 Qc5 b1N Qe3 c2 Bg2 f1N Qe1 f2 Be7 Rh4+ Ke5 Ra7 Ne4+ Nfd2 Ne2 f1N Bh3 Na3 Nd4 Nf6 g8B Na6 b8Q Nc7 g7 Rb7 Nf5 Qe8 Rg1 h1R Ne3 Nh2 Nc5 Qd8 Qd1 Nde4 Rf1 Ng5 Na6 Bd7 Bc5 Nc4+ Kf5 Bd6 Bd4 Nb2 Qd2+ Bb4 Ke5 Qe8 e7 Be6 Qg2 Bb3 Qd2 Ba4 Bge6 Qc8 g8B Qd8 Qf2 Ba3 Bd7 Qe8 Bge6 Rh7 Qa7 Qa8 Qd2+ Bb4 Qc5 Ne2 Bhg4 c1R Rf4 Rc4 Bc6 Nc1 Qd6 Nf1 Bc8 R1h4 Bh3 Nh2 Rf3 Ra7 Rf1 Rb7 Qc2 Bc5 B6d7 Ba3 Qd2+
7K/1B4N1/R1qQNq2/nPp4k/1bBq1P1q/1bQ2PrQ/5r1q/2nnQ3 b - - 0 1 legal: proof: a4 d5 c4 dxc4 f3 b5 axb5 f5 e3 g5 Qb3 f4 exf4 g4 Qd1 g3 b4 h6 Bb2 Qd7 Ke2 Ba6 Bd4 Bb7 Bf2 gxf2 g4 Bc8 g5 Qd5 g6 Bd7 Ra6 Qd4 Rf6 Bc8 Rf5 Qd8 Rg5 hxg5 b6 a5 Ke3 e5 Ke4 c3 d4 c2 h4 a4 b7 a3 h5 a2 d5 a1Q h6 g4 b5 g3 g7 Kf7 d6 Kg6 h7 g2 d7 Bb4 Nd2 Ne7 g8B Nbc6 b8Q Ra2 Nb1 Nf5 Bd5 Rg8 h8Q Ne3 Ne2 g1Q Nd2 Qh2 Nb3 Rb2 Qf6+ Kh5 Ned4 Rg4 Be2 f1Q Nc5 Qa7 Qb1 Qc1 Nf5 Qe7 d8Q Be6 Rg1 Rg8 Rg3 Na5 Qdc8 c6 Rg6 Qf7 Kd3 e4+ Kd4 Qad7 Ke5 Qcg1 Nb7 c5 Nd8 Rg7 Qf1 c1N Bb7 Bb3 Bc4 Nd1 Qf2 Rg8 Qg7 e3 Ra6 e2 Qd6 e1Q+ Qe2 Qeh4 Qe1 Qc6 Qgf6 Qh7 Ke6 Nf2 Qfc3 Qh6+ Kf7 Rg3 Qce6 Qg6+ Kf8 Nd1 Ng7+ Kh6 Kg8 Qgf6 Qh3 Qd4 Ne6 Re2 Kh8 Rf2 Kg8 Kg6 Nf5 Kh5+ Kh7 Rg7+ Kh8 Rg3+ Nfg7+
2Qb2K1/b1B1Br1p/P1Pn2Q1/4r3/2q1NQb1/k1N2r2/1P4r1/2Rnrq1Q b - - 0 1 illegal: Other
1bKQrBn1/3R1Qb1/1b3PR1/1B1b1P1Q/2P1Q1n1/q3b1pN/b1k5/b5r1 b - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 h5 g4 hxg4 d4 cxd4 Nc3 dxc3 axb5 Rh7 Qd4 Rh4 Qd1 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 d5 Kc5 Ke5 f4+ Ke4 h4 a5 b4 g5 b6 e5+ Kb5 g3 b7 g2 h5 d4 h6 d3 h7 c2 f6 d2 f5 a4 Bb2 c1B Qb3 d1B Bd4 a3 Nf3 g1B Qb2 g4 Qf2 a2 Qe2+ Bce3 Bg2 Qe7 Kb6 Nc6 b8Q Bg7 b5 Qa3 Kc7 Bb3 b6 Bb7 Qf8 Re8 Rd1 a1B Qf7 Ba2 Rh6 Bh2 Kd7 Bf4 Qe1 g3 Bc5 Ba8 Bf8 Bb7 Rb1 Kd3 Rd1+ Kc2 Rg6 e4 Ng1 Bb8 Nh3 Ba8 b7 Bb6 Bb4 e3 Bf8 e2 Qh1 e1B Rd3 Re5 Kc8 Bd2 Rd7 Re1 Bf3 Ne5 Bc6 Rc1 Bb5 Bde3 Qf3 Rg1 Q3d5 B8c7 b8Q Ng4 Qe5 Bd6 Qc7 Bd5 Qd8 N8h6 Qee7 Rg8 h8Q Bb8 Qh7 Rh8 Qe5 Ng8 Qh5 N8h6 Be7 Re8 Bf8 Ng8 Qe4+
r7/2Q3Q1/2N3q1/2qQr1P1/4nP1B/RKnQpB1P/4bb1b/k1r1n1Rr b - - 0 1 illegal: No possible last move, all moves rejected
b2n1NN1/1QR2k1q/1r1r1B2/1rP3b1/1B1P3P/1N1Q3q/3N2pn/Kb1q1b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 axb5 Be7 b6 Bf8 c4 Qf6 b5 Qg5 Bg2 Qd8 Ra4 d6 Rb4 cxb4 c5 d5 Be4 Kd7 Bd3 Ke8 Bc4 dxc4 d4 g5 Kd2 f5 Kc2 a5 Kb2 f3 h4 b3 e4 g4 b7 c3+ Ka1 b2+ Ka2 a4 b6 f2 h6 f1Q e5 a3 e6 c2 h7 g3 e7 f4 Rh2 f3 Rg2 f2 Qd3 Qd7 Qf5 Ra6 Qd3 Nc6 b8B Bh6 b7 Nd8 Qf5 Rb6 Ne2 Bg5 Qf3 Nf6 Nd2 b1B+ Ka1 a2 Be5 Ng4 b8Q Bb7 Ba3 c1R Qd3 Kf7 e8N Nh2 Bf6 Ba8 Qb7 Rd1 Rg1 Qh3 Bb4 f1B Nc1 g2 Ncb3 Rg8 Rh1 Rg6 h8N+ Ke6 Rg1 Qh7 Rh1 Rh6 Ng6 Re1 Rg1 Rb5 Rh1 Re5 Rg1 Rd5 Rh1 Rd7 Nf8+ Kf7 Rg1 Be2 Re1 Bf1 Re6 Rg6 Rc6 Rh6 Be7 Rdd6 Nf6 Rg6 Rc7 Rdb6 Ng8 Rgd6 Kb2 a1Q+ Kc1 Qa7 Kb2 Qb8 Ka1 Qbc8 Bc3 Qcg4 Bb4 Qd1 Bf6+
kN1rr3/1nQ3BK/1nq2q1P/2b4n/r2q4/NQ1r4/p1b1P2P/2RBB2B b - - 0 1 legal: proof: f4 c5 b4 h5 c4 e5 g4 exf4 a4 Ke7 Ra3 Ke8 gxh5 b5 d4 cxd4 Rc3 dxc3 axb5 Rh7 Be3 Rh6 Bc1 Rh8 Kf2 a5 Kf3 g5 Ke4 d5+ Ke5 Kd7 Kf5 Kc7+ Ke5 Kb7 b6 f5 c5 f3 b5 f2 h6 g4 Qd4 g3 Bd2 c2 Na3 c1Q Qf4 d4 Bb4 d3 Qd4 a4 Qe3 g2 Qh3 d2 Nc2 d1R Qd3 f4 Qd6 a3 Nf3 g1Q Nfd4 a2 Na3 f3 Be1 Ra4 c6+ Ka8 c7 Qc6 Bg2 Bf5 c8B f1N Bd7 f2 Qc7 Bc5 Kf4 Qf8 Kg5 Ng3 Bd5 f1R b7+ Ka7 B7e6 Na6 b8B+ Ka8 b6 Ne7 Bb3 Rd2 Bd1 Rf3 Bd5 Bc2 Be4 Rfd3 Bd5 Qb7 Nc6 Nc8 Kg6 Qd4 Rf1 Nh5 Bh1 Rg8+ Kh7 Qff6 Ba7 Re8 Nb8 Qbd5 Rf4 Bd6 Be4 Qa1 Bf2 Rf3 Rh4 Qe6 Rh3 Bb3 Nc6 Nc5 Be1 Rdd4 Rh4 Rfd3 Bh1 Qf3 Re4 Bf8 Rh4 Rdd8 Rc4 Qf1 Rc1 Bc2 Qf7 Qd6 Qb3 Be7 Bb8 Qad4 Bc7 Q6d5 Be5 Qff3 Bg7 Qff6 Nb4 Qdc6 b7+ Ka7 Na6 Nb6 Bf3 Ne4 Bh1 Bc5 Nb8 Nd6 Nd7 Ka6 b8Q Nb7 Qd6 Ka7 Qc7 Ka8 Nb8
1N2r1Br/4kR2/n5Pq/2r3Bn/1Qq1q1b1/2pB3R/Bn1PPr2/Q3K1b1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 axb5 e5 c4 exf4 h4 gxh4 Na3 d5 bxc5 Be7 c6 Bd6 c5 Bf8 Nc4 dxc4 g4 h5 b6 a5 g5 f5 c7 f3 c6 c3 b7 a4 g6 h3 Bg2 f4 Qb3 h4 Bb2 h2 Qb6 a3 Qb4 h3 Qb6 a2 Qb4 f2+ Kf1 Na6 b8Q Nf6 Qb3 Ke7 Qd1 Nh5 Bd5 Bg4 c8B Qc7 Bg8 Bg7 Bc1 Bd4 Bf5 Bc5 Qb7 Re8 Nf3 Be3 Rb1 a1R Bd3 Ra5 Ne5 Rc5 Qb4 Qc8 c7 Bd4 Rg1 h1Q Nd7 h2 Nb8 Qe4 Ba3 h1Q Rc1 Qce6 c8B Qc4 Bce6 Qh4 Rb1 Qg5 Rg3 Qh6 Rb3 Be3 Qa1 Bd4 Rf3 Be3 Kg2 f1R Rb2 Rf2+ Kg1 Qb7 Rh3 f3 Rb1 Qbe4 Rf1 Rh2+ Rf2 Rg2+ Kf1 Rh2 Rg2 Bg1 Rgg3 f2 Rf3 Rg2 Rf6 Nf4 Bb1 Nd3 Bd5 Nb2 Bd3 Qcd4 Ba2 Qc4 Qb6 Rg3 Bb4 Rf3 Ba5 Rff5 Qb4 Rf4 Bc7 Rf5 Bg3 Rf4 Bh4 Rf3 Kg2 f1N Bg5 Ng3 Bh7 Bf2 Bg8 Nh5 Kf1 Bg1+ Ke1 Rf2 Rf7+
4K3/N1q5/4P3/r1BQNRr1/Q1p1krqP/1Nb2Nb1/1qrn1nRP/1b6 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 f5 b5 axb5 e6 g3 exf5 Ra3 f4 Ra4 Qg5 Ra1 Qd8 b4 a6 b6 h4 gxh4 Be7 b7 Nc6 b5 Qd3 b6 Nb8 Bg2 Bf8 Bc6+ Qd7 Bb5 axb5 Ra3 Qe7 Ra1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 g5 Ke5 f5 e4 b4 d4 f3 Qd3 f4 Bd2 g4 Qf1 g3 Bc3 f2 Nd2 g2 Qc1 f1R Qa3 f3 Ra2 f2 Qa5 b3 Ngf3 g1R Ra1 b2 Qa7 b1Q Ra3 Bb4 Ra6 Qb2 Ra1 Nd7+ Ke6 Nc5+ Kf7 Nb3 b8Q Nf6 b7 Bf5 e5 Kd5 e6 c5 Ra2 Ng4 Ra1 Bb1 Qa4 Ra5 Qa8 Qd6 Ra2 Rc8 b8N+ Rc6 Qa3 Qc7+ Ke8 Rg2 Qa4 Rg3 Ne4 Nd2 Nd7 Rg2 Nde5 Rgg1 Ng3 Rg2 Nf5 Ke4 d5 Rg3 Bd4 c3 d6 c2 d7 c1B d8N Bc3 Qb7 Rg2 Ng6 c4 Qbb5 Rc5 Be3 Re5 N5d4 Rf5 Qd7 Rf4 N8c6 Rfg1 Na7 f1Q Nb3 Nf2 Bb6 Qd1 Bc5 Rg5 Nge5 R1g2 Ng1 Qg4 Ngf3 Nf1 Qd8 B1d2 Qdd7 Be1 Qd6 Nd2 Rf1 Nh1 Qd8 Bg3 Qdd7 Rg1 Rf2 Rc1 Qd6 Rc2 Qd5+ Kf5 Rg2 Nf2 Ra1 Ba2 Rd1 Bb1 Rf1 Nh1 Rd1 Rd4 Ng1 Kf4 Rf1+ Ke3 Rf5 Nf2 Be7 Re4 Ngf3 Rf4 Qdd7 Ke4 Bc5 Qa3 Qd8 Qb2 Qd5+
N2Bn3/3PR3/2P1Q1P1/K3b3/Nr3kqq/bBqr1N2/1QN2p2/b2nr2q b - - 0 1 legal: proof: e4 b5 b4 c5 h4 g5 a4 gxh4 axb5 d5 b6 dxe4 Ke2 e5 b5 e3 f3 e4 Ra6 Bb7 Ra4 Bd5 Rb4 cxb4 Ke1 e2 Kf2 Bb7 Ke3 Bd5 Kf4 e3 Kg4 Be4 fxe4 Qd6 Kf3 Qd8 c4 Kd7 g4 Kd6 d4 e1R b7 f5 d5 Ke5 c5 h5 d6 a5 b6 h3 d7 e2 Ke3 f4+ Kd2 h2 g5 b3 Kc3 b2 c6 h4 g6 f3 Nh3 f2 Na3 b1Q Qc2 a4 Ng5 h3 Qd1 Qb4+ Kd3 Ne7 Nc2 Na6 b8Q+ Nc7 b7 a3 Be3 a2 Bb6 a1B Nf3+ Kf4 e5 Ra2 e6 Nf5 e7 Ne3 e8N Rb2 Ba5 Qa4 Kc3 Ba3 Qd5 Qh4 Qe6 Rh6 Rg1 h1Q Rg5 h2 Re5 Qg1 Bh3 h1Q Bf5 Na6 Nc7 Qgg3 Na8 Nc7 Bg4 Ne8 Bd8 Rh5 Bf5 Rh8 Bd3 Qhg4 Bc4 Rh3 Bb3 Q3h4 Qe7 Qa7 Qe6 Nd1+ Kc4 Qe3 Kb5 Rg3 Ka5 Qd3 Qg8 Rb1 Re7+ Be5 Qe6 Qc4 Ba2 Rb4 Bb3 Qd3 Qc7 Qd4 b8N Qc3 Qb6 Rh3 Na6 Rg3 Nh2 Rd3 Qb5 Rf1 Nc5 e1B Qb7 Bd2 Qb8 Re1 Nf3 Bdc1 Qb5 Bcb2 Na4 Ba1 Qbc4+ Qd4 Qc3 Qe3 Qb2 Qc1 Ne3 Qc3 Nc2
1Qn4n/r1kN1n1b/1PPR4/p1n1b2N/2P2rnq/2N1r3/1Q3N2/K2B1R1r b - - 0 1 illegal: No possible last move
3r1n1N/bP2pb2/1b3k2/1r1r1Rq1/b1NQQ2B/1R3r1r/RP2n1PR/7K b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 Rh3 a5 Bd3 a4 Bc2 a3 Rh1 a2 Na3 Kf7 Bd3 Ke8 Bb1 axb1B Kf1 Kf7 f4 c5 d4 h5 f5 e3 b6 e2+ Kf2 e1B+ Kf1 h3 b7 h2 d6 h4 f6 h3 d7 c4 d5 c3 d6 c2 Be3 c1R Qc2 Nc6 Qf2 Rc5 Ra2 Nd4 Qc2 Rb5 Qd3 Ba5 Ne2 Bh6 Ng1 Ne2 Ba7 Bb6 Nc4 Bc2 Nf3 Ba4 Qe4 Bhe3 Nh4 Rhh5 Ng6 Rhd5 Bb8 Qf8 d8Q Qh6 d7 Qg5 Bg3 Ba7 Bh4 Beb6 Nce5+ Ke6 f7 Nf6 f8R Nh7 Rf5 Nf8 Nh8 Rb8 Rf3 Ra8 Rb3 Kf6 Nc4 Rb8 Qc7 Ra8 d8R Be6 Qc5 Bf7 Kf2 Rb8 Re1 h1R Qce3 h2 Q3d4+ Re5 Rd5 Rd8 Rc1 Re1 Rcc3 h1R Rh3 Rd1 Rh2 Rd3 Rc5 Rh3 Rd5 Rc1 Rc5 Rcc3 Kf1 Nf4 Kg1 Ne2+ Kh1 Rce3 Qdd3 Rf5 Re5 Rff3 Qdd4 Rd3 Qde3 R3d6 Q3d4 Rdd5 Rf5#
2rn3R/BnbQ3K/Q4qNP/1n3B1p/5b2/5N2/2PPqq2/BB1nrq1k b - - 0 1 illegal: No proof kernel
k4qbb/3N4/rP4Qn/1K1PPb2/1R3N1p/1nN1q1b1/1B2nB1n/r4Q1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Ke7 h5 Ke8 b4 Nh6 g4 Nc6 Rh4 gxh4 g5 Be6 g6 Rc8 g7 Ra8 Bg2 Ng8 Be4 Nb8 Bg6 hxg6 Ra3 Bd6 Rh3 Bc8 Rh1 Bf8 d4 Kd7 Kd2 a5 Kd3 f5 Kc4 c5 e4 Kc7 b6+ Kb7 d6 a4 d7 a3 h6 a2 b5 a1B h7 f3 Nh3 f2 Qd2 f1B+ Qe2 g5 Nd2 f4 Qd3 g4 Bb2 f3 Bc3 f2 Ng1 g3 Qe2 g2 Nb1 Nc6 Bb2 Bd6 Nh3 g1N Nc3 Bg3 Qd3 Nh6 g8Q Qf8 d8B Ne2 Qg6 Ra6 d5 Ncd4 Bg5 Be6 Be3 Ka8 Qb1 Rg8 h8N Nb3 Rh2 Bg2 Qf1 Rg7 Bd4 Bg8 Be3 Rga7 b7+ Kb8 Bd4 Bf3 Rg2 Bg4 Rh2 Bf5 Rh1 Kc7 b8N Kb7 b6 Ka8 Kb5 c4 Nd7 Bf4 Qd1 f1N Bf2 Nh2 Qf1 Bg3 Rg1 Bd6 Rg4 Bg3 Na4 c3 Rf4 c2 Nc3 c1Q Rg4 Be5 Rf4 Bf6 e5 Qe3 Rb4 Bg7 Qh7 Bf6 Ng6 Bh8 Ba3 Bb2 Ngf4 Bc1 Bb2 Bd2 Qg6 Be1 Ng5 Ra1 Nge4 R7a3 Ng3 Ra6 Bg1 Bf2 Nh1 Bg3 Bf2
4nK1R/1n3NRQ/PqRrB1qR/6BP/2p3Qr/2Pn1b2/1q5q/k1r2r2 b - - 0 1 legal: proof: d4 e5 b4 a5 g4 axb4 f4 f5 e4 h5 Nc3 Bd6 exf5 hxg4 Na4 e4 Nb6 Be5 dxe5 Ra5 Na8 Rxa8 Ke2 Ke7 Ke3 g5 Kd4 b5 Kc5 d5 a4 b3 h4 g3 a5 g4 a6 b2 c3 b1R f6+ Ke6 f7 g2 f8Q d4 Qe1 e3 Qd2 d3 Ra3 e2 Qc2 e1N Ra1 b4 Rh2 d2 Qd1 g3 Qh5 d1R Ra3 b3 Bb5 b2 Be3 Nf6 Qhh6 Nc6 Ra2 Rd6 Qh7 Na5 Nh3 g1Q Qfg7 Bb7 Bc4+ Bd5 Ra4 g2 Ba2 c6 Rc4 Rc1 Bb3 b1Q Qg4+ Qf5 Rh1 Qh2 Ba2 g1Q h5 Qgf2 Rg1 Re8 Bb3 Ra7 Rg2 Rf7 Ng5+ Ke7 e6 Qb2 Rg3 Qg6 f5 Bf3 Bd2 Rf8 Bf4 Rg7 Nf7 Ne8 Ba2 Kf6 e7 Qc7 Rb4 Rgg8 Be6 Qd8 Rb6 Nb7+ Kc4 c5 Rc6 Nd3 Bh6 Ng7 e8R Qdb6 Re7 Ne8 Rd7 Rd5 Rdd6 Rg7 Nh8 Ke5 f6 Rc7 f7 Rd7 Bf4+ Ke4 Rg2 Rf5 Bg5+ Rf4 Rg1 Rg8 f8R Rf7 Qh3 Rh4 Qg4+ Rf4 Rg3 Rg7 Rg8 Rd7 Nf7 Rd8 Rh8 Ke3+ Rd4 Kd2 Re4 Kc2 Rd4 Be4 Rdd6 Kb1 Rg1 Rff1 Rg2 Bf5 Kd5 c4 Qg3 Nf2 Bc8 Nd3 Bf6 Be4+ Ke6 Bf3 Ke7 Qg4 Kf8 Rcd1 Qf4 Qe6 Rg7 Rc1 Qg4 Ka1 Bg5 Qf6 Re6 Rd6 Bd7 Qf5 Rh6 Qg6 Be6
5Q2/Qq2p1P1/k1n2RB1/3n2qP/3N2nr/rrBnP3/3Q4/q1nK1NQn b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 e3 c5 Ra3 cxd4 Rd3 f4 Rd2 f3 Re2 Ra7 Qd2 Ra6 Qd1 Ra8 g3 fxe2 Bd2 h5 Bg2 b6 Bc1 h4 Bf1 Bb7 Kd2 Be4 g4 Bg6 Nc3 Bf7 Nb1 Bh5 gxh5 g5 Ke1 g4 Bg2 g3 Kd2 Bg7 Bf1 g2 Na3 Be5 Nb1 Bg3 hxg3 Kf8 Kd3 Kf7 Kd2 Ke8 c4 e1N f4 d5 f5 Kd7 a5 Kc7 f6 Kb7 f7 d3 f8Q d4 c5 b5 c6+ Ka6 g4 b3 g5 b4 c7 b2 g6 h3 g7 h2 Qf6+ Nc6 Qf8 b3 Qe8 Qd5 Qc2 Nf6 Ne2 g1N Bg2 Qg5 Nec3 Rf8 Qb8 Ne2 Bf1 Nd5 Kd1 d2 Nb5 Rf4 Qf8 Rh4 Bg2 Nd3 Rf1 h1N Be4 Ra7 Bg6 Ra8 Rf6 Ra7 N1a3 b1Q Nc4 b2 Qc3 Qa1 c8Q+ Rb7 Qc2 b1Q Qg4 Rb8 Qg1 Ra8 Nbd6 Qb7 Nf5 Ra7 Qb1 Ra8 Bb2 Nec1 Qa2 Ra7 Bc3 Ra8 Kc2 d1N Nd2 Nd1f2 Nf1 Ng4 Kd1 N3b4 Qgh2 d3 Qg1 d2 Nd4 Nbd3 Qc2 Ka7 a6 Kb6 a7 Ka6 Qb2 Rb8 Kc2 d1R Qb4 Re1 Qb2 Re2+ Kd1 Rg2 Qb4 Ra2 Qd6 Ra3 a8Q+ Qa7 Qdh2 Rbb3 Qab8 Qb6 Qd2 Qb7 Qa7+
QQ2rn2/1N1N1B1p/B1rP2Nq/P1R1qNbP/6q1/3K1np1/2r2k2/4b1b1 b - - 0 1 legal: proof: d4 d5 e4 b6 exd5 Bf5 c4 Bd3 d6 Kd7 c5 Ke6 d5+ Kf6 b4 Bf5 c6 Bd7 cxd7 a5 Qd3 axb4 Qd4+ Kf5 Qd1 Kf6 g4 Kg6 a4 f5 g5 Ra5 Ra3 Ra6 Rg3 Ra8 Rg4 Kf7 f4 fxg4 f5 Nh6 f6 Kg6 f7 Ng8 Bb2 Nc6 Be5 Nb8 Bf6 gxf6 Ke2 Kh5 h4 e5 a5 c5 g6 f5 g7 b3 Rh3 f4 Kd3 e4+ Kc3 f3 Rh1 g3 Bh3 b2 Kc4 b5+ Kc3 b4+ Kc4 b3 Nc3 b1Q Nce2 b2 Qe1 e3 Qd2 f2 Qd4 f1R Nf3 Nc6 Nh2 Qd1 Qd2 b1Q Qd4 Qb2 Nc1 e2 Rg1 e1B Rh1 Rc8 Nb3 Nf6 g8B Rf2 Nf1 Qb6 d8Q Qg4 d7 Rc2+ Kd3 Qa6+ Qc4 Qe5 Qb5 Nd4 Ne3 Rc6 Nf5 Nf3 Qa8 Bg7 d8N Nd7 Rg1 Nf8 Bf1 Bh6 Nb7 Be3 Rg2 Bg1 Rh2 Qh3 Rf2 Kg4 h5 Qh4 Be2 Kh3 Rf1 Qg4 Rf2 Qb6 Rf1 Kg2 d6 Qd8 Qb6 Qdf6 Qbd8 Qh6 Qdb8 Bb4 Rc1 Kf2 Nbd4 Be1 Ne6 Qa1 Nf4 c4+ Ke4 c3 Ba6 Qb2 Kd3 Qb5+ Ke4 Qe5+ Kd3 Ra2 Ng6 c2 Rb1 c1B Rb5 Rac2 Rc5 Nd7 f8N Bg5 Bf7 Rg8 Ne6 Re8 Nef8 Qf6 Ne5 Qh8 Nfg6 Nf8 Nd7 Qf6 Rd5 Qe5 Rc5
n1Bb2nk/1r1PN2q/3r1bQq/6n1/q4Pp1/1NpbP2N/5B2/1R1N2KQ b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 g4 hxg4 d4 exd4 b4 f5 e3 f4 Ra2 f3 Re2 fxe2 Kd2 Bb7 Qe1 Ba6 Qd1 Bc8 Nh3 g3 Ke1 Kf7 f4 c5 d6 g5 b6 Kg7 b5 a5 b7 g4 d7 c4 b6 d3 Bb2+ Qf6 Ng5 g2 Kf2 g1Q+ Ke1 a4 h4 a3 h5 a2 Qc2 a1B Nc3 Na6 b8N Qh2 b7 Rh6 Nc6 Ra7 b8N Nc7 Na5 Na8 Nbc6 Be7 Rg1 Qh3 Kf2 Bd8 Ne7 e1N Be2 Nf3 Rb1 d2 Qd3 Nh2 Kg1 d1Q+ Bf1 Qa4 Nb3 Rg6 Nd1 Ba6 Bc3 Bb2 Be1 Nf3+ Kf2 Bd4 Qf5 c3 h6+ Kh8 h7 Kg7 Bg2 Bd3 Bh1 Qf7 Qe4 Rd6 h8Q+ Kf8 Qg6 Bf6 Qh4 Qh7 Bg2 Qh1 Qh2 Rc7 Qg1 Q1h6 Qh1 Ra7 Nh3 Ng5 Kg1 Rc7 Bf2 Ra7 Qh5 Kg7 Bb7 Kh8 Bc8 Rb7 Qg6
Kb2Q2r/2P2Rb1/3Q1q1k/3n1P2/P2r1b2/Qq2B3/1Q1NBpp1/1Nr1n2n b - - 0 1 illegal: No proof kernel
B3n3/rBP1Kp1k/2q3PN/q4b2/3bR2r/2nrn3/Q1P1pN1B/1Q3Bq1 b - - 0 1 legal: proof: f4 a5 b4 axb4 d4 c5 dxc5 g5 e4 d5 h4 gxh4 a4 e6 f5 Qg5 Ra3 Qf6 Re3 Qd4 fxe6 Qf6 e5 Qd8 Re4 dxe4 Ke2 h5 Ke3 b5 Kf4 h3 Kf5 e3 g4 e2 c6 h2 a5 h4 g5 b3 a6 b4 a7 b2 Qd3 b3 Qc3 h3 Bf4 Rh4 Qa5 Ne7+ Kf6 Na6 Qa2 Nf5+ e7 Nc7 Nc3 b1Q Nd1 b2 Nf2 Ne3 Ng4 Bf5 Nh6 Qe1 Bg3 b1N Bf4 Qdd2 Bg3 Rd8 a8B Rd3 Bb7 Qa5 Ba8 Nb5 c7 Nd6 Bb7 Qec3 Ba8 Qc6 Bb7 Nc3 Ba8 Kd7 e8B+ Kc8 e6 Bg7+ Ke7 Bh8 Nf3 Bd4 Rg1 h1R Ne5 h2 Neg4 Qcd5 Bb5 Ne8 Nf2 Qc6 Rg2 Rg1 Bf4 h1Q Rg4 Qhg2 Bh2 Rh1 Re4 Qg1 Bf4 R1h3 Bh2 Rf3 Kf8 Rg3 e7 Kd7 Ba6 Rf3 Rg4 Rf4 B6b7 Re4 Qb1 Ke6 Rf4 Re5 Rg4 Rb5 Rf4 Rb6 Rg4 Ra6 Re4+ Kd7 Qa2 Ra7 Ba6 Ng7 Rf4 Bh3 B6b7 Bg4 Qb1 Ke6 Re4+ Be5 Ng8 Kf5 Nh6+ Kg6 Qa2 Bd4 e8Q Qd7 Qe7 Bf5 Qb4 Ne8 Qbb1 Qc6 Ke7 Kh7 g6+
N2rBr1Q/bb2K3/p6N/8/1RP1Pk1r/6rb/1pP3n1/BnQQQr1q b - - 0 1 illegal: No possible last move
3QQB2/3K3N/n1nP2r1/PQ3Nnp/r1r1p2b/q5Q1/b2PR1R1/bkb5 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 g5 h4 gxh4 a3 Ra6 Bc4 Ra8 Ba2 b3 Qc2 bxa2 Qb3 Bh6 Qd1 Bf8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 Kd3 f4 c5 f6 h5 d6 b5 g5 h3 f5 h2 g6 c4 a4 b4 g7 c3 f7 b3 f6 c2 Ne2 b2 Ng3 Be6 Qe1 Na6 Nc3 b1N Nce4 Nc3 Ng5 Ne4 Nf5 Rh6 Nh7 Ng5 Bb2 c1B Qg3+ Kc2 Re1 h1R Re2 Rh4 Rb1 a1B a5 Qc7 Bc3 Ba2 Rb4 e6 Rg4 Ne7 g8Q Rc8 Bd4 Bg7 f8Q Qc3 Qe8 Qa3 Qb5 Rg6 Qge8 Rc4 Bc3 Bh6 f7 Ra4 Bb2 Kb1 f8Q Rc4 Qe3 Ra4 Rgg2 Rhc4 Qg1 Nd5 Qf6 Ndb4 Qfd8 Bf8 Bd4 Be7 Qh2 Ne4 Qf4 Bh4 Qg3 Ng5 Bb2 Rg8 Kf6 e5 Ke7 e4 Kd7 Rg6 Bc3 Bab2 Bg7 Nc6 Qd5 Bf6 Bf8 Ba1 Qb5+
3NB1K1/2rbBQPn/q1R1N2b/B1nb2P1/3Brrp1/3k4/p1n2P1Q/6n1 b - - 0 1 legal: proof: g4 b5 a4 c5 axb5 h5 b4 f5 e4 fxe4 h4 g6 d4 cxd4 g5 Qa5 Ra3 Qb6 Rg3 Qa5 Rg4 hxg4 h5 Qb6 hxg6 Qd8 Kd2 d5 c4 Kd7 c5 Ke6 b6 Ke5 b7 a5 b5 a4 c6 e3+ Kd3 a3 b6 a2 c7 e2 Rh2 e1R Rg2 Ra7 Rh2 Nf6 Bb2 Re4 Nc3 Nh7 Rh6 Bd7 c8Q Na6 b8B+ Rc7 Qb7 Qc8 Na4 e6 Nh3 Nc5+ Kd2 Kf5 Bb5 e5 Qh1 d3 Kc3 d4+ Kc4 d2 Kd5 d1N Qh2 d3 Bd4 d2 Nf4 Bg7 Bc6 Rf8 Ne6 Ne3+ Kd6 d1B Ke7 Be2 Nd8 Bc4 Qa7 Bce6 b7 Nc2 Bb5 Bd5 Bc6 Nb3 Nc5 Rf6 Nce6 Nc5 Qa4 Rf8 Qc4 Rf6 Ba7 Qa8 Bb6 Qa6 b8B Rf8 Rh3 Bh6 g7 Rf6 Ba5 Rf8 Rg3 Rf6 Nf8 Kf4 Rg1+ Kf3 Rc1 Rff4 Qb3+ Ke2 Qb7 Kd3 Nfe6 Re3 Ba7 e4 Bf6 Re2 Kf7 e3 Kg8 Re1 Be7 e2 Bf8 Nd4 Rc4 Nf3 Be7 Ng1 Ba4 Rf1 Rc2 e1N Rc1 Nc2 Bc6 Bc8 Be8 Re1 B7b6 Ree4 Qa7 Na4 Bd4 Bd7 Qb7 Na3 Rc6 Nc5 Qb2 Nc2 Qc1 Rf5 Qcf4 Rf6 Qf5 Rf7 Qg6 Rf4 Qf7
1r5n/K1P2b2/1rB2b2/1r1pR1qq/2Prk3/nQ3pR1/P3N2Q/1N1r1R1R b - - 0 1 legal: proof: f4 e5 g4 a5 d4 c5 dxc5 h6 b4 axb4 f5 f6 g5 fxg5 Be3 h5 Bf4 h4 Bg2 h3 Bxh3 exf4 Bf1 Kf7 Bg2 Ke7 Bf1 Ke8 Kf2 Ke7 e4 Kf6 h4 Ke5 c4 b5 c6 d5 h5 f3 Ke3 b3 c7 b4 f6 g4 h6 g5 h7 b2 f7 b3 Rh3 g3 Qd3 g2 Qd1 g4 Qe1 g3 Ne2 g1Q+ Kd3 g2 Na3 b1R Ng3 b2 Qe3 Qh2 Ne2 g1R Rg3 Qh5 Bh3 Nh6 Bd7 Bg7 f8R Qdg5 Bc6 Rgd1+ Qd2 Rg8 h8R Be6 Rh7 Na6 Rf5+ Kd6 Rh8 Bf6 e5+ Kc5 Rh7 Bf7 e6 Rab8 e7 Rb5 Rh8 Rgb8 e8Q Rbc1 Qe5 b1R Qc3 R5b6 Qc2 R1b5 Nb1 Kd6 Qb3 Rc2 Nf4 Nb4+ Ke3 Rcc1 Qh2 Rd4 Rh7 Rcd1 Rh8 Qg7 Ne2 Qgg5+ Rf4 Ke5 Re8+ Be6 Nec3 Nf7 Na3 R1d2 Rh1 Rd1 Nab1 Ra6 Re7 R4d2 Re8 Nh8 Re7 Qg7 Rf5+ Kd6 Re8 Bf7 Re4 Rd4 Re7 Rf4 Re4 Qgg5 Rd4 Rc1 Rdd1 Nc2+ Kd3 Rh4 Ne2 Na3 Rdf1 Rd1+ Nd2 Rd4+ Kc3 Rg8 Nb1 Rc5 Kb4 Rb6+ Bb5 Rgb8 Ka5 R6b7 Ka6 Rb6+ Ka7 Ke6 Ba6 Rcb5 Bb7 Kd6 Bc6 Ke6 Rf4 Ke5 Rf5+ Ke4 Re5+
qb1k2nB/4brBB/2n1bP1q/3bNQQ1/r4NP1/3KR2P/3p1pn1/4B3 b - - 0 1 legal: proof: f4 f5 d4 h5 b4 c5 g4 cxd4 a4 b5 Ra3 h4 axb5 g6 Rg3 hxg3 e4 g5 exf5 gxf4 Ke2 d5 c4 a5 c5 e5 c6 a4 b6 f3+ Kd3 g2 b5 e4+ Kd2 e3+ Kc2 f2 c7 a3 b7 e2 h3 a2 b6 a1B Qd2 Ra4 Qg5 Be7 Nf3 g1Q Ne5 Be6 c8Q Nc6 b8B Rh7 b7 Rf7 Nc3 e1N+ Kd2 d3 Ne2 d4 Nf4 Ng2 Ba7 Rb4 b8B Ra4 Bc7 Qh2 Bb2 Qg3 Bab6 Qh4 Ba5 Qh6 Bac3 Bd5 B7a5 Be6 Be2 Bd5 Qe6 Qa8 Qef6 Be6 Re1 Bd5 Bab4 Kd8 Bf3 Be6 Re3 Bd5 Be4 Be6 Kd1 d2 Kc2 d1B+ Kd3 Bdb3 Be1 Bbd5 Qfg6 Bf6 Bf8 Be7 Bbc3 Bb2 Bg7 Ba3 Bh8 Bc5 f6 Ba7 Bb4 Bb8 Q6h5 Ra7 Bh7 Ra4 Qf5 Rg7 Qhg5 Rf7 Kc2 d3+ Kc3 d2 Kd3 Kc8 Bc5 Bd8 Bf8 Be7 Bfg7 Kc7 Nf3 Kd8 Ne5
6k1/1qbq2b1/1RNPB1PQ/nR1Q1rn1/4p3/1p5r/R3PbK1/Nr2Rr2 b - - 0 1 illegal: No possible last move
8/4b2Q/Prr1BbnN/r1P2nRB/RBK1p1Q1/b2P4/4pr1q/1B1qk3 b - - 0 1 legal: proof: f4 d5 g4 h5 b4 hxg4 f5 e5 Nc3 a5 Nb5 Be6 e4 dxe4 bxa5 c6 fxe6 cxb5 Bh3 b4 Bg2 Qd5 Bf1 Qd8 Ke2 Ke7 c4 Kd6 a4 Kc5 h4 Kd4 e7 b5 e8B f5 h5 g5 d3 Kc3 a6 g3 h6 g4 a5 e3 a7 g2 h7 b3 Bf7 b4 Nh3 g1B Ng5 f4 Rh4 e4 Rh2 b2 Rh4 b1Q Qa4 b3 Qa2 f3+ Ke1 b2 Kd1 e2+ Ke1 g3 Be8 g2 Rh2 Bd4 Qa4 g1B Rg2 Nc6 Nf7 Qd6 Rg5 Bf6 Bh3 B8e7 Nh6 Bc5 Bh5 Nd4 Be6 Ba3 c5 Nf5 Qd7 Qh2 Ba2 Rc8 a8B Rc6 Bb7 Qc2 Bc8 b1R a6 Rb5 Bb1 Ra5 Qe8 Qa4 Be6 Rb6 Qg6 Qc2 Rg2 Qd1+ Kf2 Rc6 Qg4 Rb6 Bb2+ Kd2 Ra2 Bd6 Ra1 Nge7 Ra2 Re8 h8Q Rc8 Qh7 Rcc6 Ra1 Ng6 Bc3+ Kc1 Bb4 Bde7 Qg8 Nfh4 Ke3 f2 Rg3 f1R Qh7 Rf2 Rg2 Bg5+ Kd4 Bgf6+ Kc4 Nf5 Bd5 Qd2 Bf7 Kd1 Be6 Ke1 Rg3 Bab2 Ra4 Ba3 Rg1+ Rf1 Qh3 Nf8 Rg5 Ng6 Qf3 Rf2 Qg4 Kf1 Kb3 Qd1+ Kc4 Ne5+ Kc3 Ke1 Be8 Qg1 B8f7 Qh2 Bh5 Ng6+ Kc4+
K1bB3r/4NNpn/1Rp5/n4rPk/1q1q1N2/N1P2B1P/b2q2r1/r3Q2Q b - - 0 1 illegal: No possible last move
bnrq2r1/B1N1pb1r/B1NqPk2/5N1N/Rb5K/P2pn3/Q1Pr4/6Q1 b - - 0 1 legal: proof: b4 a5 f4 axb4 g4 h5 d4 f5 a3 c5 gxf5 cxd4 Ra2 g6 Rb2 g5 Rb3 Bh6 Rg3 Bf8 Rg4 hxg4 fxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kf7 Kg3 d5 h4 b5 e4 d3 f6 d4 h5 d2 h6 b3 h7 b2 e5 b4 Ba6 b3 Nf3 d3 Nc3 b1B Nd4 b2 Kh4 g3 Ncb5 g2 Na7 g1R Nac6 Bh6 Nf5 Ba2 g6+ Ke6 f7 b1Q g7 Bb7 Rh3 Nf6 g8N Nd5 Nf6 Ne3 Nh5 Rgg8 Qg1 d1R f8N+ Kf7 Bd2 Qbb6 Ne6 Bf4 Bb4 Rd2 Bc5 Qbc7 Rh2 Qcd6 Ba7 Bb3 Nc7 Bg3+ Kh3 Be1 Rg2 Ba2 Rg4 Bb3 Ra4 Bd5 Qf2 Kg6 Qf1 Bf7 e6 Kg5 Nf4 Kf6 Qg1 Rf2 Kh4 Bb4 Qf1 Rd2 Qe1 Rg7 Qg1 Rf8 h8Q Rg8 Qh5 Rh7 Nh6 Nd7 Qd5 Rc8 Qc4 Nb8 Qa2 Bh5 Nf5 Ba8 Kh3 Bg6+ Kg3 Bh5+ Kh4 Bf7+ Nh5+
kB4b1/1b1p4/3qNPnn/qN3q1P/P1n1Q3/rQ4N1/Np2nR1K/1Br5 b - - 0 1 legal: proof: f4 a5 d4 f5 a4 h5 b4 axb4 e4 c5 exf5 cxd4 g4 e6 g5 Be7 Ra3 Ra5 Rg3 Ra8 Rg4 Bf6 gxf6 hxg4 Kf2 b5 Kg3 g5 h4 e5 c4 b3 c5 e4 c6 b2 c7 b4 Bd2 b3 Bd3 e3 Bb4 e2 Bd2 e1N Be4 d3 Bb4 d2 Na3 b1Q Qc2 d1B Qd3 b2 Qe2 Ng2 Qe1 Ne3 Bc5 Nc4 Bb6 Bb7 c8N Nc6 Qe2 N6e5 Ne7 Rc8 Nd5 Bb3 Bc7 Nh6 Kh2 Ng6 Bb8 Qa5 f7+ Kd8 f8N Rh7 f6 g3+ Kg2 g4 f7 Rc7 f5 Kc8 f6 Qd1 Nc3 Qd6 Na2 Rh8 Kf1 g2+ Kf2 Rh7 Nb5 g3+ Kf3 Rh8 Ne6 Re8 f8Q Rc6 Nh3 g1Q h5 g2 Rh2 Qgc5 Nhg5 g1N+ Kg2 Qf5 Qf7 Rc7 Qf3 Ne2 Bb1 Re7 Ne4 Re8 Nf4 Re5 Ng3 Re3 Ne6 Rc6 Nc1 Ba2 Kh1 Ra3 Rf2 Rc5 Kh2 Bb3 Ba7 Rc6 Na2 Rc5 Bb6 Kb8 Qe4 Ka8 Ba7 Nd2 Nd8 Rc1 Bb8 Nc4 Qfd5 Nd2 Qdd3 Bg8 Qb3 Nc4 Ne6
q3QrQ1/2pPRr1n/P5N1/1r1PK2b/2Nn4/qb5p/B3QB1Q/1r3kb1 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 f5 exf5 axb4 c4 gxh4 Ra3 bxa3 cxd5 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 g4 b5 d6 e5 d7 h5 a5 b4 f3 h3 d4+ Kh4 g5 Kg3 f4 Kf2 f6 h2 f5 h4 f7 a2 a6 a1Q g6 h3 g7 b3 Qg4 b2 Bf4 Nc6 Ne2 Rb8 Kd5 e4 Bd6 e3 Na3 b1R Nc4 R8b5+ Bc5 Qa3 Nf4 e2 Ng6 e1R f6 Re7 Bd3 Bb7 Re1 h1B+ Re4 Qa8 Qe2+ Kg1 Bc2 Bg2 Bb3 Bf3 Ba2 Bh5 Qh2+ Kf1 Re5 Re8 Re7 Rh7 Ke6 Rb8 d5 Nd4+ Ke5 Bc6 Re6 Be7 f8Q Rc8 f7 Nf6 Qh8 Rf8 g8Q Rg7 Ba7 Bc5 Re7 Nh7 Bb6 Nf5 Ba7 Bg1 Be3 Nd4 Bf2 Rd8 f8Q Rf7 Qh6 Rdf8 Q6f4 R5b4 Qe3 Ba4 Qd2 Rb5 Qc2 Bb3 Qe4 Rf4 Qc2 R8f7 Qe8 Rf8 Qg8 R4f7 Qe2+
1RQ5/kp4r1/b1P1rN1b/1P3B2/1bQ2Rpn/6Bb/2q3PK/r1Br1B1n b - - 0 1 legal: proof: e4 f5 h4 fxe4 d3 c5 h5 c4 dxc4 Qc7 Qd4 Qh2 Qxa7 Kd8 Nc3 e6 Nd5 exd5 h6 d4 Qa6 Qxh6 Qa7 Qh2 b4 Kc7 a4 h5 f4 g5 Kf2 d5 c5 h4 c4 h3 a5 e3+ Kf3 e2 a6 e1B c6 d3 f5 d2 c5 d1R f6 d4 f7 d3 Bd2 Rh6 Rc1 Nf6 Bc3 d2 Ne2 Nh5 Ng3 Nd7 Ne4 Ng3 Bb2 Re6 Nf6 Bh6 Rc4 Nf8 Bc1 Ng6 f8B Nh4+ Kg4 Qg1 Rf4 h2 Kh3 Qf2 Be7 Bd7 Bd6+ Kc8 c7 Bb5 Rg1 Nh1 Qb6 Rb8 a7 Ba6 a8Q Qe2 b5 Qe4 Bb2 Qc2 Qc6 Ra1 Bde5 d1B Bc1 Bb4 Qd5 Bh5 Qc4 Be8 Be2 Bd7 Re1 Ng3 Bf1 h1R+ Kg4 Rg1 Kh3 Nh1 Bd6 Qb2 Kh2 Qc2 Bd3 Rf1 Re5 Rd1 Bf1 Re8 Re7 Bh3 Rh7 g4 Rh8 Qa2 Rf5 Qe2 Bg3 Qc2 Rf4 Rg8 Ne8 Rg7 Rg8 Kd7 c8B+ Kd8 Nf6+ Kc7 c6 Kb6 Bd7 Re8 Qc8 Ka7 Bf5 Re4 Q8e6 Re3 Rb8 Ree1 Qe8 Re6 Qc8
1n1bq1Bb/5R1P/QB4B1/3b1qR1/bKPp4/1np1n2k/1r2QPN1/1b4B1 b - - 0 1 illegal: No proof kernel
1R6/Qr4q1/5Np1/2pPK2b/PQ1n3r/Br1BBqn1/1P3kq1/BN4nn b - - 0 1 illegal: Other
BnRQ1K2/b1b5/2b2Nb1/1P1q4/1p1bP2r/1P2Qp1R/rRR1Nq2/bk6 b - - 0 1 illegal: No possible last move
qNQn4/N3r2r/3p1n1k/KpR1P3/N2r1N2/q2PPB1q/8/2rqQBb1 b - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 b5 axb5 c6 b6 Ba6 b5 Bc8 b7 Qb6 Ra5 Qc7 b6 Qd8 d3 e5 f3 e4 Rd5 d6 Be3 Bf5 Bd2 e3 Rb5 exd2+ Kf2 Be4 fxe4 cxb5 Ke3 a5 Kd4 f5 Kc3 Kf7 g4 Kg6 g5 h5 e5 f4 Qc1 d1Q Nd2 a4 Kb4 f3 c4 a3 c5 f2 c6 a2 c7 a1Q c8N h3 Na7 h4 Nb3 h2 Na5 h3 Qc7 Rh7 Nc4 Re7 Nb2 Bh6 Na4 Qa3+ Ka5 Nf6 Qc3 Kg7 g6 Be3 Qb4 Kh6 g7 Bd4 g8B Nc6+ Ka6 Qe8 b8N Nd8 b7 Qd7 Bd5 Bb6 Bfg2 f1R Qe1 Rf4 Bdf3 Rd4 Bf1 Qc6 Nd7 Rc8 b8Q Qa8 Qb7 Rc1 Nb8 Rb4 Qd7 Bf2 e3 Rd4 Ne2 Bg1 Kb6 Bf2 Rg1 h1Q Rg4 h2 Ka5 Bg1 Nf4 Qg2 Qe6 h1R Qc8 Rh5 Rg7 Qh3 Rg4 Rg5 Rg2 Rgg7 Rc2 Rh7 Rc5
NQ6/4R1n1/2NpPn1K/4B3/qq4NQ/N1Rq1P1n/1p2b1rP/b2nkq2 b - - 0 1 legal: proof: d4 a5 f4 f5 b4 axb4 d5 e5 fxe5 c6 Bg5 cxd5 Bc1 d4 Nf3 h5 Nc3 b5 Ng1 f4 Nb1 f3 Kd2 f2 Nh3 Ra3 Ng1 Rf3 gxf3 Bc5 Bh3 Bf8 Bg4 hxg4 e4 Ke7 c4 Ke6 a4 f1Q a5 g5 a6 b3 a7 g3 a8N d3 Ke3 b4 c5 d2 c6 g2 c7 b2 Ra4 b3 Ne2 g1N Rc4 g4 Kf4 g3 Nbc3 b1Q Na4 g2 N4b6 Ne7 Kg5 Ba6 c8Q Nf5+ Kg6 Rg8+ Kh5 Ng7+ Kh6 Nh3 Qe1 d1N Rc5 g1Q Rc3 Qd4 Bb2 Qa4 Nc4 Bc5 Qc7 Bd4 Na3 d6 Qf2 Qd3 Qh4 Nd7 Qb8 Nf6 Ba1 Qb6 Rg1 Nge8 Rg7 Qbb4 Rf7 Rg2 Rh7 Bc5 Bb2 Ng7 Nd4+ Kf7 Nc6 Bd4 Na5 Bb5 e6+ Ke7 e5 Bc4 Bc1 Bb5 Bf4 Bc4 Rc1 Ba1 Rc3 b2 Bg3 Qe4 Bf4 Be2 Bg3 Qd3 Bf4 Qe8 Nc6+ Kf8 e7+ Kf7 Rb3 Ke6 Na5 Kf5 e6 Ngh5 Rc3 Qea4 Rf7 Ng7 Nc6 Rg5 Be5 Rg4 Bd4 Kf4 Be5+ Ke3 e8N Kd2 Nc2 Nd7 Nf6 Rg2 Ng4 Nf6 Re7 Qab5 Nf2 Q5a4 Na3 Ke1 Ng4+
b1R1q3/Pb1n1pk1/1n1Kn1p1/4N2B/nPPB1N1b/5N2/2q1Q1b1/1N1Q1r2 b - - 0 1 legal: proof: c4 e5 b4 b5 f4 exf4 g4 bxc4 a3 h5 gxh5 a5 Bg2 a4 Bh3 Qf6 Bf1 Qd8 d3 c5 Bh3 c3 Ra2 c4 Rb2 c2 Rb3 axb3 a4 c3 Bf1 Ra5 Qd2 Rc5 Qd1 Rc4 dxc4 Bd6 Na3 Be7 Nb1 Bf8 Kf2 d5 Kf3 d4 Ke4 b2 Ke5 d3 e4 f3 h4 d2 h6 f2 h5 Ne7 h7 Bb7 h6 Nc8 a5 Nd7+ Kd4 Ncb6 e5 Be7 a6 Kf8 a7 Bh4 e6 Qe8 Bd3 f1B Be2 Bfg2 Bh5 Rg8 h8N Ba8 Qf1 d1B h7 Bdf3 Qd1 Bfb7 Be3 c1N Nf3 c2 Rh2 Nd3 Bg1 Ke7 Ng6+ Kf6 h8N c1Q e7 Qc2 Nf4 N3c5 Nhg6 Rh8 Nge5 g6 Be3 Kg7 Bg1 Qc8 e8Q Ne6+ Ke3 Rh6 Qe7 Qe8 Rh3 Nc7 Kd4 Rh8 Qe6 Rh6 Qg4 Ne6+ Ke3 Bf6 Nfd2 Ndf8 Rg3 Na4 Nc3 b1N Qge2 Rh7 Bg4 Rh2 Bh5 Nb6 Rf3 Nc5 Kd4 Rh3 Rd3 Bh4 Ndf3 Rh1 Bf2 Rf1 Be3 Nd2 Nb1 Nde4 Bf2 Nf6 Bg1 Nce4 Rd2 Nc3 Kc5 Bd5 Rd4 Bdb7 Rd8 Nca4+ Kd6 Nf6d7 Bd4 Ne6 Rc8
B5n1/4Q1r1/4r3/BkrPQNb1/rN1Pbb2/Np1R4/4pnP1/bN2K1n1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 b4 fxe4 f5 d5 cxd5 axb4 a4 Bd7 h4 Bc8 Ra3 Qd6 Rf3 Qf6 Rf4 gxf4 Ba3 Qg6 Bc1 Qg5 hxg5 Bg7 Rh5 Bh6 Rh1 Bf8 d4 Kd7 f6 c5 f7 e5 g6 b5 g7 h5 a5 f3 a6 h4 a7 c4 Bg5 h3 Bd2 b3 Na3 b4 Qa1 c3 Rh2 b2 Nb1 e3 Qa5 c2 Qb6 c1B Bc3 e2 Qa5 b3 Rh1 e4 Bb4 h2 Qb6 Be7 f8Q Bf4 Bd6 Beg5 Na3 b1R+ Kf2 Nc6 Be7 Rc1 Bb4 Rh6 Qb5 Kc7 Qa6 Rc5 Bd2 Re6 Ke1 Ne5 Qad6+ Kb7 Qde7+ Kb6 Qfe8 Ba6 Qh5 Bd3 Ba5+ Ka6 Nc2 Kb5 Nb4 Rd8 a8N Rd7 Nb6 Ra7 Nc4 Rd7 Ne3 f2+ Kd2 Rb7 Nf3 e1B+ Kd1 Rbc7 Nc4 e3 Nfd2 Nf3 Nb1 Ng1 Qh8 Be4 Nca3+ Ka4 Qh5 Bc3 Ba6 Ba1 Bb7 Rd7 Qe2 f1R+ Qe1 Rf2 Ba8 Ra2 Qg3 e2+ Ke1 Nh3 Rf1 h1N Rf3 Ng1 Rd3 Nf2 Qh2 Nh6 g8N Rb7 Qd8 Rg7 Ne7 Ng8 Qh5 Rb5 Nf5 Rc5 Nac2 Kb5 Qe7 Ra4 Qh2 Bc1 Qe5 Bcf4 Nca3+
3bk3/P2bRbq1/2Pn1Qp1/3qqpB1/1K3P2/2BQ1B2/2r3bB/1b2RN1b b - - 0 1 illegal: No possible last move, all moves rejected
q2br3/3B1r1P/rP1R2NQ/n2b4/2PK2B1/p2p3N/1QpBkn2/1bn1B3 b - - 0 1 legal: proof: f4 c5 b4 h5 c4 e5 g4 exf4 a4 Ke7 Ra3 Ke8 gxh5 b5 d4 cxd4 Rc3 dxc3 axb5 Rh7 Be3 Rh6 Bc1 Rh8 Kf2 Ke7 h4 Kf6 e4 Ke5 h6 a5 h5 g5 b6 f5 h7 d5 b5 g4 b7 g3+ Kf3 d4 b6 g2 h6 a4 Rh2 a3 Be2 Be7 Qc2 Ra6 Rh3 Nf6 Qb2 Re8 h8Q Nc6 h7 Na5 Be3 Be6 Bd2 Qa8 Bd1 Bd8 Qc1 Bd5 Qf8 Ng4 Rh6 Nf2 Nh3 g1N+ Kg2 d3 b8B+ Kd4 Bg4 Ne2 Qb2 Nc1 Rd6 f3+ Kg1 f4 e5 Ke4 e6 Kd4 Be1 Ke3 Nd2 Ke2 e7 Bc6 Ng5 Ba4 Nh3 Bc2 Qh6 Bb1 Bc7 c2 Bb8 Rf8 e8B Rh8 Bed7 Re8 Bge6 Ne4 Bf5 f2+ Kg2 f1R Nf3 Nf2 Bg4 Nc6 Ne5+ f3+ Kg3 Na5 Kf4 Rg1 Bge6 Rg7 Ng6 Rf7+ Ke5 Ng4+ Kd4 f2 Bd5 f1B B5e6 Bg2 Bf5 Nf2 Bg4+ Bf3 Rc6 Kf1 Bf4 Bh1 Rd6 Bd5 Bgf5 Ke2 Bfd2 Bh4 Bfe6 Bd8 Bg4+
1RQ2R2/Qrk1B2K/q2b2Q1/7P/1r2nPp1/2qPp2p/n3q1b1/2n1Q1NN b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 f5 e4 fxe4 axb5 hxg4 h4 Ba6 Bg2 Bc8 Bh3 gxh3 Ke2 Kd7 Ke3 a5 Kf4 c5 Kg5 e5+ Kg6 c4 b4 a4 f4 a3 d6 c3 d3 a2 b6 c2 h5 e3 b7 e2 b5 e1Q b6 e4 Bb2 c1N Rh2 e3 Bf6 Ra7 Nc3 Nc6 b8Q Qc7 b7 Nb4 Rb2 Qe2 Ne4 Qc3 Be7 Nf6 Nf2 Ne4 Qe1 Kc6 Rab1 a1Q d7 Qa6 d8Q Nba2 Qe8+ Bd7 Qa8 Kc7+ Rb6 Bb5 Rf6 Bc6 Nh1 Rg8 Kh7 g5 Rb6 g4 Rb4 Rg5 Qg6 Rb5 Rb1 Rb4 b8Q+ Kd7 Rf5 Rab7 Qba7 Kc7 Rf7 Nd6 Rf5 Bg2 Rf6 Ne4 Rf7 Bg7 Rf8 Be5 Rb3 Bd6 Rb2 Kc6 Qc8+ Rc7 Qf7 Ra4 Rb8 Rb4 Qce6 Rcb7 Qfg6 Kc7 Qc8#
1B1b2K1/Q1k5/1bBp1qRB/R3bPQ1/Pn5p/1PBp1r2/N1r2n2/4qn2 b - - 0 1 illegal: No possible last move, all moves rejected
q1bkN3/1r4n1/pbPBp3/N1P1b1n1/qr5R/2BKN2P/2pNQQ2/r7 b - - 0 1 illegal: No proof kernel
r2n3Q/5kP1/p3nQ1p/7n/3R4/1KB1PbPq/QQB1b1pN/rR1rq3 b - - 0 1 legal: proof: a4 e5 d4 exd4 b4 b5 g3 bxa4 c3 f5 b5 Bb4 cxb4 f4 Nc3 g5 Nd5 f3 Ne3 Nc6 h4 Nb8 Ng2 fxg2 hxg5 Bb7 Ra2 Ba6 Ra1 Bc8 Kd2 d5 Kc2 c5 f4 h6 b6 d3+ Kc3 d4+ Kb2 c4 g6 a3+ Ka2 c3 b5 c2 g7 d2 b7 d3 f5 a6 b6 Nc6 b8Q Qd7 f6 Nd8 e3 Bb7 Qe2 d1Q Bd2 Bf3 b7 Qe1 Kb3 a2 Rb1 a1R Rh4 Qh3 Bc3 d2 Rd4 d1B f7+ Ke7 Qd2 Nf6 Bd3 Nh5 f8Q+ Ke6 Qbf4 Bde2 b8Q Rg8 Qa3 Rf8 Qfd6+ Kf7 Qb2 Re8 Qa2 Re5 Qc1 Rd5 Qcb2 c1N+ Kc2 Bg4 Nf3 Nb3 Nh2 Nc5 Be4 Nce6 Kb3 Bgf3 Bc2 Nc6 Qh8 Ncd8 Ra4 Rd1 Rd4 Nb7 Qe5 Nbd8 Qf6+
n2Q1krq/1KQpp3/2B1b1R1/2b3P1/nB1N1NP1/p3r1N1/P1qN4/q2n4 b - - 0 1 legal: proof: c4 c5 b4 f5 e4 fxe4 h4 g6 d4 g5 hxg5 b6 Nd2 cxd4 c5 b5 Rb1 Bg7 Rb3 Bh6 Rc3 Bf8 Rc4 bxc4 g4 a5 Ke2 h5 f4 Ra6 f5 h4 f6 a4 b5 c3 b6 d3+ Ke3 h3 Kd4 c2 Kd5 h2 c6 Bg7 c7 Bb7+ Kc5 Bd5 c8N Be6 Bb2 c1Q+ Nc4 e3 b7 d2 Nf3 e2 Bg2 e1Q Ba3 Rb6 Rf1 h1Q Qc2 Rb3 Bb4 a3 Kb5 Na6 b8Q Nc7+ Kb6 Qeh4 Kb7 Na8 Qc3 Qc2 f7+ Kf8 N8d6 Bd4 Nf5 Nf6 Rf2 Nd5 Ng3 Kg7 f8N Ndb6 Ng6 Qa1 Bh1 d1N Ncd2 Qh7 Qcc7 Bc5 Nd4 Re3 Bc6 Rg8 Rf6 Qh8 Nf4 Na4 Rg6+ Kf8 Qbxd8+
R1b4B/B1rpp1kR/2p2q2/4P1Pb/4r3/QPQ4q/1n1KB1nr/1B2N2b b - - 0 1 illegal: No possible last move
N2R1rn1/n6k/rp1q4/pR2P1r1/5bbN/2rP1p2/P2QRQR1/1Bn1K3 b - - 0 1 legal: proof: g4 h5 c4 hxg4 b4 d5 Bb2 c5 cxd5 e6 bxc5 e5 f4 exf4 Bd4 Be7 Bf2 Bf8 Bg3 fxg3 e4 f5 h4 Kf7 d6 Kg6 h5+ Kh7 e5 a5 c6 g5 c7 g2 d7 f4 h6 g3 Rh4 b6 Rh2 g4 Na3 Ra6 Rb1 Nc6 Nf3 g1N Re2 g2 Nb5 g3 Nh4 f3 Qc1 Qe7 d8R Bg4 c8Q Na7 Nc7 Qd6 Na8 Be7 Q1c3 Bg5 Rb5 Be3 Q8c5 Bf4 Re4 Ne2 Qf2 Nc1 Re2 g1R Qcd4 Nf6 Qc3 Rf8 Qc2+ Kh8 h7 g2 Qd1 Kg7 h8R Ng8 Rh5 Rh1 Rg5+ Kh7 Rg6 g1R Qc2 Rg3 Qd1 Rh2 Bh3 Bd7 Bf5 Rg5 Bb1 Bg4 d3 Qb8 Rc6 Qd6 Rcc2 Rg2 Qd2 Rh2 Ng6 Rh6 Nh4 Rhf6 Rcb2 R6f7 Qfe3 Rc7 Rg2 Rc6 Qdf2 Rc4 Re2 Rc3 Qd2
8/r2Qn2p/1PBPBP1R/p2n1Q1p/KN3B1B/2r5/1Nrn1q2/1nb1kb2 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 c4 fxe4 h4 d5 cxd5 g6 h5 gxh5 Ra3 Bb7 Rb3 Qc7 axb5 Qc8 b6 Qd8 b5 Bc8 Rb4 cxb4 f4 Kd7 d4 Kd6 Kd2 a5 Kc2 e5 Kb3 e3 g4 e4 f5 e2 g5 e1N b7 e3 b6 e2 g6 Ne7 g7 Ng8 Nf3 Qh4 Nc3 Na6 b8Q+ Nc7 Bg2 Ra7 Ka4 b3 Nd2 b2 Rg1 b1N Na2 Ne7 g8B Bh6 Be6 Nf3 Nb4 Ba6 Qf8 e1R Bh1 Bf1 Rg6 Bg5 Rh6 Re2 Qf7 Qf2 Qf6 Nc6 Qg6 Rc8 Nc4+ Ke7 Bg2 Rc2 Bf4 Nfd2 Nb2 Rc3 Bf7 Kd7 d6 Nd5 Bh1 Nce7 Be6+ Kd8 Bf3 Rc2 Qf6 R8c3 Qe5 Ke8 d7+ Kf8 Qe4 Kg7 d8B Ng6 Bdc7 Kf6 Bg3 Be3 Bg2 Kg5 f6 Nge7 Qd3 Nf4 Bc6 Nfd5 Bgf4+ Kh4 Qf5 Nf3 Qdd3 Bc1 Bb8 Nfd2 Qb5 Nc7 Bg5+ Kg3 d5 Kg2 Bh4 Kg1 Bb7 Kg2 Qd7 Kg1 Bc6 Kg2 Qg5+ Kf3 Qf5+ Ke2 Qg6 Ke1 Qf5 Ne8 Bbg3 Nc7 d6 Ncd5 Bf4
n1N1N2Q/1p1R1rP1/bN1p1BR1/1r1r4/n1K3Pk/PQp2r2/bbN4q/8 b - - 0 1 illegal: No possible last move
6r1/N6p/P1bB1PBN/1rqB1rPk/2n1rR2/8/pQKQp1q1/b2n1B2 b - - 0 1 illegal: No possible last move, all moves rejected
1qn2QQb/2k2Q2/2b1P2Q/4pb2/p1R1bq2/rB1P4/2p1bP1N/r1N1KR2 b - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 d4 exd4 e3 gxh4 Qd2 d3 Qc3 d2+ Ke2 d1B+ Ke1 Nf6 Qb3 Ng8 Kd2 d5 e4 f6 e5 d4 e6 d3 Kc3 Nc6 Bf4 d2 Bd6 Nb4 Be5 Nd3 cxd3 fxe5 Qc4 Nf6 b4 Ng8 Qa2 Bg4 Qb3 Bd1 g4 a5 g5 h5 g6 c5 g7 h3 b6 c4 b7 h2 b8Q h4 b5 h3 b6 Bb7 Qa4+ Bc6 b7 Bg4 Qb3 d1B Kd2 c3+ Ke1 c2 Na3 Ne7 g8Q Nc8 Nb5 Bde2 Ra4 Bf5 Rc4 Qd4 Qa4 Kd8 Nc3 Qf4 Qf7 Bg7 Na2 Rh7 Bg2 Bh8 Nf3 Ra7 Rg1 h1B Qa8 h2 b8Q Ra6 Rf1 Rg7 Bh3 Rg1 Nc1 Bg2 Qbb4 h1Q Nh2 Bge4 Bg2 Ra7 Bf3 Qg2 Qd2 Qg8 Qab4 Qf8 Qe3 Qd6 Bg2 Qb8 Qh3 Ra6 Qh6 Ra7 Qfg6 Kc7 Qbf8 a4 Qgf6 Rb7 Qg8 Rb3 Qa7+ Kd6 Qaf7 Ra3 Qff8+ Kc7 Bh1 Bg6 Bf3 Bef5 Bd5 Bh7 Qfg6 Be4 Qge8 Bhf5 Qef7+ Kb6 Rc3 Nd6 Nb3 Rg6 Rg1 Qh4 Kd2 Nc8 Rh1 Rg1 Bc4 Rga1 Nc1 Qg4 Rf1 Qf4+ Ke1 Bf6 Bb3 Bh8 Qfh5 Kb7 Rc4 Kc7 Qhf7+
q4b2/1RP2NpR/1n1B2nN/p2p1r1Q/1Pn2n1R/kQ1P1K1b/3q2R1/5n2 b - - 0 1 legal: proof: a3 b5 Nc3 c5 Nb1 b4 axb4 c4 g4 e5 f4 exf4 b3 cxb3 Na3 f5 Bg2 a5 Bb7 h5 Bg2 f3 Bh3 f4 Nb1 Ra6 Kf2 Rf6 Ke1 Rf5 gxf5 Rh6 Bg4 hxg4 Ra4 Rh4 Ra1 Rh8 Kf2 Ke7 e4 Kd6 c4 b2 h4 Qg5 d3 Rh5 c5+ Kc6 f6 Kb5 e5 d5 f7 Rh7 c6 Be6 c7 Qg6 h5 Qh6 Ra2 Nd7 Nh3 Nb6 Qb3 Ne7 Ng5 Ng6 Nd2 b1N Nc4 Na3 Ne3 Nac4 Rh4 Rh8 Nf5 g3+ Kg1 f2+ Kg2 f1N Kf3 Bc8 e6 g2 e7 g1Q e8R Ng3 Rg2 Ne2 Be3 Qc1 Bc5 Qd2 Bd6 Qh7 h6 Qg8 h7 Bd7 Qb2 Ka4 Nh6 Bh3 Qb1 Ka3 Rb8 Ka4 Rb7 Ka3 Kf2 f3 Qc2 Be7 f8R Nef4+ Kg3 f2 Ngf7 f1N+ Kf3 Ne2 Re8 Bf8 Re5 Nef4 Reh5 Be7 Qb1 Qa8 Qd1 Re8 h8Q Bf8 Qc2 Re5 Qb2+ Ka4 Qb3+ Kb5 Ng8 Rg5 Qh6 Rf5 Qg5 Qa2 Rh7 Qd2 Qb1 Ka4 Qh5 Ka3 Ngh6 Nfe3 Qd1 Nf1 Qb3+
1qRN4/6B1/6q1/2pqR1n1/NPrn1RPK/1kpQ1bp1/1Q4P1/rr1Rq3 b - - 0 1 legal: proof: c4 f5 a4 b5 d4 bxa4 c5 g5 h3 g4 e3 g3 Bd3 d6 Be4 dxc5 Ra3 fxe4 Ra1 Bg7 d5 Bd4 exd4 c4 Ne2 Qd7 Ng1 Qg4 hxg4 Kd7 Qc2 Kd8 Qd1 Ke8 f4 Kf7 b4 a5 d6 Ke6 d7 Kd5 f5 h5 f6 e5 f7 h4 f8Q a3 Qh6 h3 Qdd2 h2 Qf6 e3 Qf8 c3 d8R+ Kc4 d5 e4 d6 a4 d7 a2 Qf1+ Kb3 Qd4 a3 Qfd3 Nh6 Qe5 Nf7 Qed6 Nc6 Ke2 Ng5 Nh3 Bb7 Rb8 Rc8 Rd1 h1Q Nf4 Qh5 d8R Qg6 Re8 Ra6 Re5 Nd4+ Ke1 c6 Ne6 Rc7 Kf1 Ra8 Rc8 e2+ Kg1 e3 Nd8 Ra5 Qf6 Ra8 Qf2 Ra7 Rf1 e1Q Qfe2 Qd2 Rf4 Ra8 Kf1 Qd1+ Qe1 Qf3+ Qf2 Qd5 Qfe2 Ka4 Qb2 e2+ Kg1 Ra6 Nd2 Ba8 Rb1 a1Q Nc4 a2 Bd2 Raa7 Rd1 Qc1 Be3 a1R Bf2 Rb1 Be3 Nb3 Bc5 Ra6 Bf8 Nd4 Bg7 e1Q+ Rf1 Qee4 Rf4 Qe8 Kf1 Q4g6 Qbd2 Bb7 Nb6+ Kb3 Ke1 Raa1 Na4 Nb5 Ke2 Nd4+ Ke3 Ba8 Rdf1 Qe1+ Q2e2 Rb7 Rh1 Rb5 Rg1 Rc5 Rgf1 Rc4 Rg1 Qd1 Qed2 Qc1 Rd1 c5 Rc7 Qe7 Rf8 Qed6 Kf4 Q5e6 Rh1 Bf3 Rc8 Nh7 Rf1 Qd1 Qc1 Qe2 Rd1 Qb8 Qcd2 Qe1 Q2e2 Qd5 Qf2 Qgd6 Rf6 Nf8 Kg5 Nfe6+ Kh4 Ng5 Rf4 Qg6 Qb2+
2NKQ3/8/qn1P2Bq/br2rRPp/1R4pP/2RbR3/1pr3Bq/1kQ4r b - - 0 1 legal: proof: d4 a5 b4 axb4 c4 d5 cxd5 Kd7 e4 Na6 d6 Kc6 d7 Nc5 d5+ Kd6 Bb5 Ne6 Bf1 Kc5 d6 Nf4 Ba3 Kb6 Bc1 Kc6 g4 f5 g5 Ra7 Nd2 Kc5 Ndf3 Ra6 Ne5 Nd5 exd5 Ra8 Ng4 fxg4 f4 Rb8 f5 Ra8 Bd2 Kd4 f6 Ke5 f7 Kf5 Bc3 Kg6 Bf6 gxf6 Ke2 Kf5 Kd3 b5 Kd4 c5+ Ke3 e5 a4 c4 h3 b3 a5 b2 a6 b1R a7 c3 Nf3 e4 Kd4 b4 Kc5 e3 Kc6 Ke4 Ra4 e2 Rh2 e1Q Ra6 c2 Be2 c1R+ Bc4 b3 Ra4 f5 Nd4 f4 Nc2 f3 Qd2 f2 Rb4 f1Q Ne3 Rc2 Nf5 Ba6 Ne7 Qef2 Nc8 Qdf6 Kc7 Qh6 d8R Ne7 d7 b2 h4 Rb8 a8B Rb5 Rh3 Qh2+ Rg3 Qff6 Bc6 Rh1 Re8 Bg7 f8R Qd6+ Kd8 Bc3 Ra4 Bb4 Rf5 Ba5+ Nb6 Qde6 Rc3 Nc8 Rb4 Rg8 Ba8 Rg7 Bc6 Re7 Ba8 Qc6 d6 Ree5 Re7 Qe6 Re8 h5 Bb7 Qh6 Re7 Rc5 Bf7+ Bc4 Bg6 Rb5 Rbb3 Bd3 Re6 Kd4 Rb4+ Qc4 Bg2 Ne7 Ke8 Nd5 Nc8 Nb6 d8Q Qf4 Rbb3 Qh2 Qe7 Qc6+ Kd8 Qa8 Qe8 Qa6 Qd1 Ke3 Re7 Kd4 Rb4+ Ke3 Qc1+ Ke2 Qe3+ Kd1 Qe2+ Kc1 Qd2+ Kb1 Re6 Rec5 Re3 Re5 Qc1+
br3q2/r1R1B3/1p1r1pR1/6nB/P6R/2r1p1K1/P2kqQPn/nQ4RN b - - 0 1 legal: proof: e4 c5 d4 cxd4 h4 a5 f4 a4 b3 f5 bxa4 fxe4 f5 Kf7 f6 Ke6 f7 Kd5 Nc3+ Kd6 Nd5 Kc6 Nf6 gxf6 Qe2 Bh6 Qd1 Bg5 hxg5 Ra5 Qd3 Ra6 Qd1 Ra8 Kf2 Kd5 f8Q h5 c3 e5 g6 d3 c4+ Kd4 g7 Kc3 c5 d5 c6 h4 c7 h3 Ba3 e3+ Kg3 d4 Qe7 e2 Qb3+ Kd2 Qb5 e1N Bd6 b6 Rb1 e4 Bc5 e3 Qb2+ Nc2 Qa3 h2 Rb3 Na1 Kf4 Qf8 Nh3 Nc6 Qe5 Nd8 Rc3 Bb7 c8R Ne6+ Kg4 Ng5 Qe4 Ra7 Nf2 Ba8 Bb4 Nh6+ Kg3 Ng4 Rg1 h1R g8R Nh2 Rg6 Rg8 Be2 Rh8 Rb1 Rc1 R3c4+ Rc3 Bh5 Kc2 R4c7 Qg7 Qf3 d2 Rd7 d1Q Rcc7 d3 Be7 d2 Rd4 Qe2 Nh1 d1R Qb4 Rb8 Rh4 Qf8 Qf2 Rd6 Rg1 Kd2 Qb1
1n2n1KQ/b1k4P/Q1Bb1p2/1rqP2N1/5N2/p6n/pnbR1qP1/BN2N3 b - - 0 1 illegal: No proof kernel
NK2b3/2rN1PbN/2P1bQ2/2Bpb1qN/3q1R1p/1P1n4/p5k1/Q2Bqn2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 h4 f6 e4 Ra6 f4 Rb6 d5 cxd5 f5 Ra6 e5 Ra8 Ra4 fxe5 Rf4 gxf4 g5 Ra6 h5 Rg6 hxg6 e4 Ke2 d4 Kf2 Nf6 Ke1 Ng8 Ke2 h5 c4 d5 b3 Kd7 g7 Kd6 c5+ Ke5 b6 e3 Kd3 a4 f6 f3 f7 Kf4 b7 Kg3 g6 e5 Nd2 e4+ Kc2 h4 Rh2 f2 Ba3 d3+ Kc3 e2 Kb4 e1Q Kb5 e3 Ngf3 e2 Bg2 f1B Nc4 d2 Nb6 Na6 Kc6 Qg5 b8N Be6 Kb7 Ne7 g8Q Nb4 g7 Nd3 Qa1 d1Q Na8 Nf5 Nd7 Ne3 Kb8 Kf2 Bb4 a3 c6 a2 Ba3 Kg3 Bh1 Bfh3 Bc5 Nf1 Rf2 Bhg4 Qh7 Bgf5 g8N Bg7 Qf6 Qa1 Qhg6 Qd4 Qe5+ Kh3 Qgf6 Bg4 Nh2 Bgf5 Rf4 Kg3 Be4 Bh3 Nf3 Kg2 Bg6 Bhg4 Bh5 Bh3 Nf8 Bd7 Nh7 Bhe6 Bg4 Be8 Bh5 Qeg3 Bg4 e1B Bh5 Bb4 Qe1 Bc3 Qa1 Qe1 Ne5 Ba5 Nd7 Bc7+ Ka7 Bd6 Bd1 Be5 Ne7 Rg8 Nf5 Rf8 Nb8 B8d7 Ng3 Rc8 Nh5 Be8 Nd7 Rc7+ Kb8
1Q2q3/QP3Q1K/1Nq1nr2/1b1p1P2/1QB3q1/nP2q1Rn/p2k1b1p/1R4N1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c6 h4 f6 e4 Ra6 f4 f5 h5 fxe4 f5 c5 Bf4 gxf4 g5 Rg6 hxg6 cxd4 Kd2 e5 c4 Ke7 c5 h5 b6 d5 b7 h4 g7 e3+ Kd3 f3 c6 Kd6 b3 Kc5 c7 Kb4 g6 e4+ Kc2 d3+ Kc1 a4 Qe2 h3 Nc3 d2+ Kc2 d1Q+ Kb2 f2 Nb1 h2 Nc3 a3+ Ka2 Rh6 Qh5 e2 Nb1 e1Q Nd2 Kc3 Qf3+ e3 Qg2 e2 Qe4 Bc5 Qg4 Nc6 Nc4 Nf6 g8Q Nh7 g7 Qe8 Qf7 Bd7 c8Q Rf6 g8Q Ng5 Qb8 Nh3 Qa7 Nd4 Rb1 Ne6 Nb6 Bb5 Qb4+ Kd3 Ka1 a2 Kb2 Qc6 Qgb8 Qed2+ Ka3 Qe3 Kb2 Qe1 Nf3 Qd1 Rg1 Qe1 Rg3 Qd1 Bg2 e1Q Ng1 f1N Bf3 Nd2 Bg2 Qg4 Bf1+ Qee2 Kc1 Qef3 Kb2 Ke3 Kc2 Nc4+ Kc3 Qf2 Be2 Na3 Bd3 Qg8 Bc4 Qge8 Rg2 Qh4 Rg3 Ke4+ Kd2 Qfg4 Kc3 Bf2 Kd2 Qgg5+ Ke2 Kd4 Kf3 Qe3+ Kg2 Qe1 Kf3 Qg5 Qba5 Qge3+ Kg4 Q1e2+ Kh4 Q2f3 Qb4 Qff4+ Kh5 Qfe4 Qf8 Kc3 Qe7 Kd2 Qb4+ Qc3 Qg6 Qg4+ Kh6 Kc2 Kh7 Kd2 Q4d6 Qcd4 Qf7 Qe3 Qb4+
1Q1KQ1R1/Q1nb2b1/4NnP1/3N4/2p2r2/pP1R3n/1pkPBQ2/3brb1n b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 Na3 cxb4 Nc4 b3 Bd3 b2 Bf1 b1B Nb2 Bg7 Be2 Bh6 Bf1 Bf8 c4 b5 c5 b4 c6 b3 Nd3 d6 Ba3 b2 Bc5 Qb6 Nc1 Qb3 axb3 dxc5 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 f4 h5 g4 a5 f6 e5 c7 c4 f7 h3 f5 h4 f6 h2 Nge2 h3 Kg6 a4 g5 a3 Nd4 Bg7 f8Q Bd7 Kf7 Rh4 c8Q Rf4 g6 Bc2 Nce2 Kd3 Ra2 e4 Qce8 e3 Nc3+ e2 Nd5 Na6 Ra1 Nc7 Rc1 Ra5 Qe1 Bd1 Qf2 Ra8 Qee7 Re8 Qc5 Re6 Qa7 Re3 Qe8 Re5 Rg1 h1B Ne6 h2 Rg3+ Re3 Rh3 Bg2 Rh8 h1N Qeb8 Bc2 Re1 Bd1 Qe8 Kc2 Qeb8 Nh6+ Ke7 Ng4 f7 Nf6 f8Q Ree4 Qfe8 Bh3 Bg2 Re5 Rg1 e1N Bf1 Nf3 Kd8 Ng5 Rg3 Re1 Be2 Bf1 Rg8 Nh3 Rd3
nn3bQ1/6nP/2R3pR/2rNK1bq/P5p1/pB2R3/Q1PpN1q1/2k3Rr b - - 0 1 illegal: No possible last move
2K5/p1nQ4/2P2R2/br1p1Q2/N2P3p/NBN1qrb1/1P1kpNnq/1n3R2 b - - 0 1 legal: proof: e4 c5 h4 f5 a4 fxe4 h5 b5 axb5 d6 h6 Be6 Ra5 Na6 Ra4 gxh6 Ra3 h5 Ra1 h4 b6 c4 d3 c3 b7 Bb3 Bd2 cxd2+ Ke2 Rc8 b8Q Rc7 Qa8 Ba4 Rxa4 Rc8 Ra1 Rc6 Ke3 Kd7 Kf4 Ke6 g4 Kd5 Kf5 Kd4 Ke6 h5 c4 e3 f4 e2 f5 Ke3 d4 e1B f6 h3 c5 h2 f7 h4 g5 Nf6 g6 Rb6 g7 d5+ c6 Ne4 g8N Nc3 Nh3 Qe8 Qh5 d1N Qc8 Rb5 Bc4 Bg3 Rf1 h1Q Nf6 Qh2 Na3 Kd2 Qd7 Ne3 Qf5 Nb1 Bb3 Ng2 Nf2 Bh6 f8N Rh7 Qd8 Rf7 N8d7 Bhf4 Qc8 Bc7 Nc5 Ba5 Qd7 Rf8 Na4 Rf7 Nh5 Rf8 Nf4 Nc7+ Ke5 e6 Kd6 e5 Ne2 Rf7 Nec3 e4+ Qf4+ e3 Qe5 Rf4 Qef5 Qg8 Ke7 Qe6+ Kd8 e2 Kc8 Rf3 Nh1 Ne1 Nf2 Qe3 Rg1 Bf4 Rg6 Ng2 Rf6 Bg3 Na2 Nc3 Rf1 Nb1 N2c3
q1b4N/4QrbK/2pPb3/3PB2p/n2Q4/1Bkn2Pp/2b2pbN/2Q3RQ b - - 0 1 illegal: No possible last move, all moves rejected
Q4R2/3QPp2/4rqp1/N1b3Bk/B1bP4/nB1pbn2/1Pn1pRK1/6Bn b - - 0 1 legal: proof: e4 b5 d4 d5 g4 dxe4 a4 h5 axb5 hxg4 Nd2 c5 Bd3 c4 Be2 Qa5 Bf1 Qd8 f4 e5 Bg2 a5 Nb3 e3 Bf1 e4 Nc5 Rh5 Nd3 Re5 fxe5 cxd3 Qe2 Ra6 Qd2 Rh6 Qd1 Rh8 c4 g3 h4 g6 e6 a4 c5 a3 h5 g2 h6 a2 h7 e2 Kf2 e1N b6 Ne7 b7 Qa5 c6 Nd7 b8B Nf5 c7 Qb6 Rh2 Bc5 Qg4 Ne5 Ne2 Nc2 Bg5 g1B+ Kg2 e3 Nc1 e2 Nb3 Na3 Na5 Ba6 c8B Nf3 Bd7+ Kf8 Ba4 Kg7 e7 Bc4 Bc7 Ng3 Qd7 Ra8 Bcf4 Ra6 Be3 Bf2 Rc1 a1N Rc3 Be1 Bg1 Qf6 Rb3 Bf2 Rb8 Be3 Rf8 N1c2 Kh3 Nfe1 Rg2 Bb5 Rf2 Re6 Bg2 Ba6 Bd5 Bb5 Rb8 Nh1 Bdb3 Nf3 Kg2 Ba6 Bh4 Kh6 Bg5+ Kh5 h8Q+ Kg4 Qhc8 Bc4 Qcc6 Kh5 Qa8 Kg4 Rc8 Kh5 Rf8
3r2rB/1P2pp1b/8/pkQ1P3/p2n4/P7/QB2NnNr/nRn1KBrB b - - 0 2 legal: proof: f4 g5 d4 gxf4 d5 b5 d6 cxd6 Qd3 d5 Qd1 d4 b4 Qa5 a3 Qc7 Ra2 Qa5 Rb2 Qd8 Rb3 Qc7 Rh3 Qc4 Rh6 Qc7 Ra6 Qd8 c4 Bg7 h4 Nc6 g4 Bb7 c5 Qc7 g5 Bc8 g6 Qb6 cxb6 Bh6 Ra4 bxa4 b5 Bg5 hxg5 Nb8 e4 h5 g7 a5 b7 d5 e5 Kd7 b6 Kc6 g6 f3 Be3 f2+ Kd2 d3 Qc1+ Kb5 Nf3 d4 Rh2 h4 Qe1 h3 Kd1 Nc6 b8B Bf5 b7 Nb4 Qe2 Na2 Nh4 Nh6 g8B Nc1 g7 Bh7 Ba7 Rd8 Rh1 h2 Qa2 Nf5 Rg1 h1R Ng2 Rh2 Nc3+ Kc6 Bb6 d2 Ne2 Kb5 Ba7 Nh6 Bg5 Nf5 Kc2 d1N Kd2 d3 Bf6 Nde3 Bd4 Nc2 Bb2 Nfd4 Rh1 Be4 Bh7 Na1 g8Q Bg6 Qf8 Rg8 Bh8 Be4 Kd1 d2 Qh6 Bg6 Qe3 Bd3 Be4 Bb1 Ne1 Bd3 Rg1 Bb1 Bh1 Bh7 Bh3 f1R Qc3 Rff2 Bf1 Rfg2 Qc5+ Ka6 Nf3 Ncb3 Nh4 R2g3 Bh3 R3g4 Re1 Rg1 Qc7 Kb5 Bf1 Nc1 Ng2 Nd3 Nef4 Nf3 Ke2 d1N Qc8 N1f2 Rb1 Nd4+ Kd2 Rg3 Ne2 Nc1 Ke1 Rgg8 Qc5+
3B1bq1/1k5n/qp1Ppp1P/2NQ1n2/B1Q2pBB/4rRP1/3brp2/3K2N1 b - - 0 1 illegal: No possible last move
2n3qQ/BR1N2p1/2pkNbpP/3Q3n/PN6/1pp1nr1B/P1q1b3/5N1K b - - 0 1 legal: proof: g4 a5 f4 e5 c4 exf4 c5 a4 b3 d6 bxa4 dxc5 Ba3 c4 Bb2 Ba3 Bc1 Bf8 Kf2 f5 Na3 f3 Ke1 f4 Rb1 Ra5 Rb6 Rf5 Rg6 hxg6 gxf5 b5 Kf2 Kd7 d4 c6 e4 b4 h4 c3 e5 Bd6 e6+ Kc7 f6 Nh6 h5 Ng8 d5 Be7 d6+ Kb6 h6 Kc5 d7 Ba6 f7 Be2 f8N Bf6 Nc2 Ne7 Bh3 Nc8 e7 b3 e8Q Rg8 Nb4 Rh8 Bd2 Kd6 Rh2 Rg8 Rg2 Rh8 Rg5 Rg8 Rb5 Rh8 Ne6 Rf8 Rb7 Rf7 Qh8 Qg8 d8N Nd7 Nc5 Rf8 Nde6 Rf7 Bf5 Rf8 Nh3 Rf7 Kg1 f2+ Kg2 f1N Kh1 f3 Nf2 Ne3 Ng4 f2 Nh2 Rf8 Bh3 Rf7 Qg1 f1Q Bc1 Qf3+ Qg2 Qf5 Nf1 Qc2 Bd2 Ne5 Nd7 Nd3 Be1 Nf4 Bf2 Nh5 Qf3 Bh4 Qe4 Rf3 Qc4 Bf6 Bg1 Nd1 Ba7 Ne3 Qd5+
2B2BBQ/1qq1p1r1/1P1r2p1/p1r2p2/2pkR1P1/qQ1N1b2/P6B/n5KR b - - 0 2 legal: proof: g4 h5 c4 b5 e3 bxc4 Nc3 h4 Ne4 c3 Ke2 cxd2 Ng3 hxg3 Kf3 d5 Kg2 d4 f4 g6 f5 d3 f6 Bg7 fxg7 Nc6 Qb3 Be6 Qd1 Nd4 exd4 Bc8 h4 Kd7 b4 Kc6 b5+ Kd5 b6 f5 h5 c5 h6 a5 h7 c4 Qc2 d1Q Bf4 d2 Bh6 Qc1 Qb2 d1R Ne2 Qc7 Qb1 Bb7 Kg1 g2 Qb3 Qa3 Nc1 Rc8 Nd3 Nf6 g8B+ Ke4 d5 Kd4 d6 Ne4 d7 Nc5 d8B Bf3 Bf8 Rd2 Qb4 Nb3 Re1 Na1 Qb3 Qb7 Re3 Rc5 Bc7 Rd1 Bh2 Qc7 Bd5 Rg8 h8Q+ Rg7 Bg8 Rd2 Nf4 Qb7 Bd3 Qc7 Be4 Rd3 Bb7 Rd2 Bc8 Rd3 Kf2 Qb7 Kg3 g1Q+ Kh3 Rd1 Nd3 Qc7 Re6 Qe3 Re5 Qe4 Kg3 Qeb7 Kf2 Re1 Re6 Ree5 Kg1 Red5 Re1 Rd6 Re4+
Kb5r/R2N1pR1/pprppPQ1/b1p2q1R/4P3/b1P4B/5k2/1n1R1NQ1 b - - 0 1 legal: proof: d4 h5 g4 hxg4 a4 c5 a5 d6 a6 b6 d5 Bb7 axb7 Nc6 dxc6 a6 b8Q Rh3 b3 Ra7 Ba3 Rxb3 Bc1 Rh3 Bh6 Rxh6 Qa8 Rh8 Kd2 g5 Ke3 g3 Ke4 g4 Kd5 g2 h4 g3 e4 Qc8 f4 Rc7 Nf3 g1B f5 g2 f6 Bf2 h5 g1B h6 Be1 h7 Ba5 Nbd2 Bd4 Bh3 Bb2 Rg1 Ba3 Ne5 Kd8 Nf1 Ke8 Qa7 Qf5 Qa8+ Rc8 c7 e6+ Kc6 Be7 Kb7 Bd8 Qf3 Ne7 Qe3 Nd5 Nd7 Nc3 Rd1 Nb1 c3 Nd2 Rg7 Nb1 Ne5 Kf8 Qg1 Ke8 Nf3 Kd7 Qb8 Bb2 Qg6 Ba3 Ka8 Kc6 Ne5+ Kb5 Nd7 Kc4 Qg1 Nd2 Qg6 Kd3 Qg1 Ke2 Qg6 Re8 h8R Kf2 Rhh7 Nb1 Rh5 Be7 Rh6 Rh8 Rh5 Rce8 c8R Bd8 Rc6 Bc7 Qc8 Bb8 Rc7 Re7 Qg8 Re8 Ra7 Rc8 Q8h7 Rc6 Qg1+ Ke2 Qhg6 Kf3 Q1g5 Kf2 Qg1+
1nR2N2/p1rN1Q1R/Pqq4b/Q2Pp3/p1ppR3/R2bp3/4p1PK/4Bk2 b - - 0 1 illegal: Other
b4b1B/1R1Pr2q/rn1nqn2/1nK1p1NQ/1PB4N/Nb2P3/N1Q5/3qn2k b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 c4 dxc4 f4 h6 g4 gxf4 g5 h5 Ra3 Kd7 Rg3 Ke8 Rg4 hxg4 Kf2 Kd7 d4 Ke6 h4 Kd5 h5 Ke4 e3 c5 b6 f5 b7 e5 d5 a5 h6 a4 d6 c3 h7 c4 g6 g3+ Ke2 c2 g7 g2 Rh3 a3 Qd2 f3+ Kf2 c3 Rh2 f4 Rh4 a2 Rh1 a1N Na3 Ra6 Bb2 c1Q Qe1 c2 Qc3 Qc7 Bb5 Nf6 g8Q Qd1 Rh6 c1N Be8 Nbd7 b8N Ncb3 Bf7 Bb7 Nc6 Ba8 Nd8 Nd4 Qg5 Nb6 Ne6 Nac2 Ne2 Nb5 Nc1 Ne1 Qh5 g1N Qc5 Ne2 Bc3 Ned4 Na2 Nf5 d7 Qcd6 Kf1 f2 Qc8 Rg8 h8N Rg7 Ng6 Q6d5 Qc7 Nfd6 Nh4 Q5b3 Bg8 Re7 Rg6 Qdb1 Ke2 f1B+ Kd2 f3 Bd4 f2 Qc2+ Bd3 Bc5 f1Q Bf7 Qd5 Bg8 Nd4 Kc3 Qf5 Bf7 Qd1 Rg8 Qh7 Rh8 Bh6 Rb8 Bf8 Rb7 Qc6 Nf4 Qd5 Nh3 Qe6 Bg8 Qef5 Bc4 N4b5+ Kb3 Qfg4 Ng6 Kf3 Nh4+ Kg3 Ng5 Qgf5 Qg6 Qe6 Qh5 Nbd5 Bb6 Bg6 Bd8 Bf7 Be2 Kh2 Bf1+ Kh1 Bc4 Re8 Be7 Nb6 Bd8 Nfe4 Bf6 Re7 Bg7 Nf6 Bh8 Nbd5 Bf1 Nc8 Kc4 Ndb6+ Kc5 Ncd6 Qhe2 Qh3 Qh5 Bb3 Bd3 Qe6 Bc4
nN1b3B/1q2QK1P/2b1B1pq/1bB4q/2r3N1/B4nPq/2r4P/1kr1RQn1 b - - 0 1 illegal: Other
1bbbRR2/4b1rQ/R2n3P/pr1N1Qn1/1q1r2qb/k4PbR/PB6/1K3B2 b - - 0 1 illegal: No possible last move, all moves rejected
3n1q2/b1QRrQNp/1R6/BK2b3/N4q2/1b1kPNNP/1P5b/1r2nbbr b - - 0 1 legal: proof: d4 b5 c4 f5 g4 fxg4 a4 d5 axb5 e6 Bg2 dxc4 d5 Bd7 d6 Bc8 Bd5 exd5 Kd2 Kd7 Kc3 Ke6 Kb4 Ke5 f4+ Ke4 f5 g5 b6 a5+ Kb5 c5 b7 a4 f6 d4 d7 a3 f7 a2 h3 g3 Qb3 g4 Qc3 g2 Bf4 g3 Rh2 d3 Qb4 d2 Na3 d1B Qa5 c3 Nc2 c4 Bd2 Nf6 Qa4 Nc6 b8Q Nd5 Ne1 c2 Nd3 c1B Qb6 Nf4 Ne1 Bd6 f8N Be5 Be3 Ba6+ Kc5 Bb3 Bd4 c3 Qc4 c2 Nd3 Be3 Qc7 c1Q Ne6 Re8 Ng7 Re7 Rh1 Qe8 d8N Qf8 Nde6 Nd8 Kb4 Qf1 Bc3+ B3d4 Rd1 a1R e3 Rb1 Ne2 g1B Bd2 Bh2 Rg1 g2 Ng3+ Kf3 Bc3 Ba7 Ndc5 Nd3+ Ka5 Rc8 Na4 Ne1 Rd7 Kf2 Nd4 Ra8 Rh1 g1B Rd6 Rc8 Rb6 Bb5 Qg8 Qc4 Bd2 Qcf7 Bc3 Qf4 Qf7 Bf1 Bd2 Bg2 Kb5 Bf1+ Nde2 Ra8 Ba5 Kf3 N3h5 Ke4 Ng3+ Kd3 Nd4 Bf2 Rg1 Rc8 Rg2 Bfg1 Rc2 Ra8 Rcc6 Rc8 Rd6 Ra8 Rd7 Rc8 Qd6 Rcc1 Qc7 Be2 Ka6 Ng2 Rbd6 Bf2 Qb7 Rh1 Kb5 Ne1 Qc7 Bfg1 Rb6 Bf1 Nf3+
2KNn1b1/N6q/2pk1nR1/3N1n2/nQ5P/5r1N/brP1BP1n/r1b2QbR b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 Bg2 exd4 Bd2 g3 Bg5 f6 Bh3 fxg5 Bf1 g4 Kd2 Ke7 Kd3 g5 Ke4 a5 Kd5 c6+ Ke5 d5 e4 a4 h4 g2 b4 g3 b6 d3 b7 a3 b5 d2 b6 a2 Na3 d4 Rb1 a1R Qc1 d1B Rh3 g4 Qf4 d3 Nb5 d2 Rb3 Nd7+ Kf5 Ndf6+ Ke5 Bh6 b8N Qd3 b7 Ne8 Na6 Be2 b8N d1N Nc3 Nb2 Rb5 Ngf6 Rh2 Rf8 Nc5 Na4 Nbd7 Rb8 Nh3 g1B Ne6 g2 Nd8 g3 Nb6 Be6 Rh1 Ba2 Nbd5+ Kd7 Ra5 Rb2 Nb5 Bh5 Be2 Bf7 Kf5 Bg8 Na7 Rf7 Qc1 Kd6 Qf1 Bc1 Rc5 Qd2 Rb5 Qh6 Rb7 Rf8 Rg7 Qh7+ Rg6 Bh2 Bg4 g1N Be2 g2 e5+ Kd7 e6+ Kd6 e7 Nf3 Bd3 g1N Bc4 Ne2 Ba6 Nc7 e8Q Bg1 Qe4 Nh2 Bb5 Ne8 Qb4+ Kd7 Ke5 Ng3 Bc4 Nfe4 Ba6 Rf3 Be2 N4f6 Kd4 Nc3 Kc5 Nf5 Kb6 Na4+ Kb7 Bb3 Qbe1 Kd6+ Kc8 Ba2 Qb4+
4R3/2Q2N1q/P1n2q1r/PnN2Q1r/k1p1K3/2Pr2rN/qR2bq1N/1B2br2 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 dxe4 g4 h5 g5 h4 Bb2 f6 Bd4 fxg5 Be5 g4 Bg3 hxg3 Ke2 Kd7 Ke3 Kc6 f4 e5 a4 b5 d4 g5 h4 b4 h5 g2 a6 b3 f5 g3 a5 b2 h6 g4 h7 Bb4 f6 Nh6 f7 Qf6 f8N Nf7 Qe2 Be1 c3 Nd6 Qd2 Nb5 Na3 b1Q Bd3 Qa2 Nf3 g1R Qe2 g2 Nh4 g3 Nf3 Bg4 Nh2 Rf1 Qd1 g1R Qa4 g2 Qc2 Be2 d5+ Kc5 d6 Nc6 d7 Rd8 Nb1 Rf5 Bc4 Rgf1 Qd1 g1R Qd3 Rh5 Nd2 Rg3+ Ndf3 Rh6 Qc2 Rh5 Bf7 Rh6 Ne6+ Kc4 Qc1 Kb3 Qb1+ Ka4 Nc5+ Ka3 Bg6 Bd1 Qc2 Bf2+ Kd2 Rh5 Na4 e3+ Kd3 e2 Nb6 e1Q Qb1 Rfg1 Nc4+ Ka4 Be4 Ncd4 Nd2 c5 Nb3 Nc6 Bg6 Rhg8 Be4 R8g6 h8N Rgh6 Nf7 Qd2+ Kc4 Qb2 Kd5 c4 N3g5 Qc2 Nh3 Bg4 Bh7 e4+ Bf5 Rc1 Re1 e3 Re2 Rf1 Rd2 Rdh8 d8Q e2 Qc7 e1Q Re2 Rb8 Re8 Be2 Nc5+ Ka3 Rg8 Re8 Rf8 Ree3 Re8 Ref3 Qd1 Re3 Rb1 Ref3 Rb2 Re3 Nb3 Ka4 Qd4 Qcb1 Qde5 Qc2 Bh7 Qcg6 Qg5 Qgg7 Bb1 Rd3+ Ke4 Qh7+ Qf5 Be3 Nf4 Bd2 Nh3 Qf2 Qf4 Be1 Qb8 Rfg1 Qc7 Rf1 Nc5+
qkB2K1Q/Rp3brb/1P1B3n/qNq1qn2/5PQ1/1N6/1Q1r1q1P/b1Q4b b - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 exf5 h5 d4 cxd4 g4 hxg4 b5 Nf6 Ra2 Ng8 Rb2 Nc6 Rb3 Nb8 Rb4 axb4 Kd2 e5 Kd3 g5 Kc4 d5+ Kb3 Kd7 c4 Kc7 f4 e4 a5 d3 a6 d2 c5 g3 a7 e3 f6 d4 Kc4 b3 f7 g4 c6 b2 Be2 d3 Nc3 b1B Qc2 d1Q Ba3 g2 Bc1 g3 Qa4 d2 Nh3 g1Q Qa3 g2 Qb4 Qde1 Bd1 e2 Qb2 Rh7 Nf2 Rg7 Nfe4 Nh6 Nc5 Qgf2 Nb3 g1Q Bc2 d1B Bf5 Qe8 Kd5 Be6+ Ke5 Bc5 f8Q Bf7+ Kf6 Bdc2 Qg8 Be4 Bd7 Qc8 Bg4 Bd4+ Ke7 Bed5 Be3 Bh7 Be6 Be5 Bc5 Qd2 Bh3 e1Q Qh8 Qg8 Bc8 Qde2 Ba3 Qa1 Bc5 Qa5 Ba3 Qc1 Re1 Bh1 Bd6+ Kb6 c7 Nc6+ Kd7 Rb8 a8Q Nd4 Ke7 Qce3 Ra1 Ndf5+ Kd7 Qc5 Qc1 Qab4 Qaa3 Qa5 Qab2 Ka7 b6+ Ka8 Ra3 Bd4 Nb5 Qee5 Qe2 Ba1 Qeb2 Qf8 Be7 Rg1 Ra4 Rd1+ Bd6 Qed4 Ra3 Qg8 Ra2 Nh4 Ke7 Rd3 Bf5 Qa7 c8Q Rd2 Qbb1 Qde5+ Qe6 Qaa3 Qf6 Qh8 Qbc2 Rg8 Q2b2 Rg3 Bh3 Qb8 Qh8 Rg7 Bg2 Qa7 Bc6 Qa6 Bd7 Qa4 Bc8 Qba7 Nc7+ Kb8 Kf8 Qa8 Qg4 N4f5 Ra3 Qab4 Ra7 Qba5 Nb5+
4nRbQ/q5B1/Qq2kb2/1n3r2/1qp2qb1/Q3rNP1/PNP1B3/Kb1b3Q b - - 0 1 legal: proof: d4 a5 f4 e5 dxe5 h5 b4 axb4 Be3 g5 Bc1 gxf4 Nd2 h4 Rb1 Bg7 Rb3 Bh6 Rf3 Bf8 g3 h3 Rf2 Na6 Rg2 hxg2 Ba3 Nb8 Bb2 Be7 Bc1 Bf8 h4 Ke7 e4 b5 h5 c5 h6 d5 h7 f5 e6 b3 e5 b2 Nb1 f3 Kd2 b4 Rh3 d4 Be2 b3 Na3 b1Q Rh5 d3 Kc3 f2 Bg5+ Nf6 Bc1 f1B Rg5 b2 Kb3 f4 Bd2 f3 Rh5 f2 Bg5 d2 Rh4 Qb6+ Kc3 Na6 Nb5 Nc7 Bh6 Ra5 Rf4 Bg7 Nd6 Nfe8 Nf3 g1Q Nc4 Bf6 Bg7 Nb5+ Kb3 Rf8 h8Q Ra7 Qc1 d1B Qh1 Bg2 Qe3 f1Q Qc3 Ra8 Qb4 Bh3 Qa3 Bg4 Rf5 Bb7 Qa6 Bd5 Qa3 Kd8 e7+ Kd7 Qa6 Bg8 e6+ Kc6 Rf4 Kd5 Qa3 Qd4 Qa6 Qff2 Qa3 Qc1 Qa6 b1B Nb2 Kd6 Rf5 Qcf4 Qa3 Nec7 e8Q Qe1 Qf7 Ne8 e7 Qea5 Qc4 Qaa7 Qh6 Rd8 Qh1 Rf7 Qca4 Ke6 Qa6 Rd5 Bf8 Re5 Bg7 Nec7 e8Q+ Re7 Qg6 Ne8 Qgh5 Qdd2 Qh8 Qe1 Nd3 c4+ Kb2 Qb4+ Ka1 Re3+ Nb2 Rc7 Rd5 Rc5 Rd7 Rg5 Rf7 Rf5 Rf8
1qn3Q1/2RQQKPN/rn3b2/4pr1r/nP4kR/4n2b/Nn2P3/Q1Br1q2 b - - 0 1 illegal: No possible last move
3b2B1/kQP1q2q/1q1B2r1/p2n1bn1/P2R1n2/N5q1/bQ1Rr1PB/3Kn2B b - - 0 1 illegal: Other
1n4QR/2rq3n/qr6/q1p1b3/4KP2/QPPN1Q2/1r2NQbk/1bB1bR1r b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 d5 e5 d4 Ke2 d3+ Ke3 f6 Be2 fxe5 Ke4 dxe2 Ke3 Bd7 Kd3 e4+ Kc3 Bc8 g4 Kd7 Kd4 Ke6+ Ke3 Ke5 d3 e1Q+ Ne2 c5 f3 h5 g5 a5 b3 a4 b6 h3 g6 h2 g7 h4 b7 a3 Rg1 h1B Rg3 a2 Bd2 h3 Rg6 h2 Qc1 Ra6 Rd6 Rh7 Rd7 Bg2 Na3 h1R Rd4 Nf6 g8Q Rb6 Qc4 Qd7 Qf7 Bg7 Rb1 a1Q Nc4+ Kf5 f4 Kg4 Qd5 Kh3 Qa3 e5 Nb2 Kh2 Bc1 Qa5 c3 Bh8 Qc6 Re7 Ra4 Nh7 d4 Bg7 d5 Qa6 Kd2 e3+ Kc2 e4 d6 Be5 Nd3 Qf5 Rb4 Rc7 d7 Qf7 d8Q Bf5 Qd4 Qd7 Bd2 Bg6 Rf1 Bf5 Bc1 Qa2+ Qb2 Q2a5 Qa3 Bg6 Ng3 e2 Qf2 e1R Ne2 e3 Qcf3 Rd1 Rd4 Be4 Rd6 Bf5 Rf6 Re1 Rf8 Be4 Rh8 Bf5 Nd4 e2 Kd2 Rd1+ Ke3 e1B Ne2 Bg6 Qa4 Rd2 Qa3 Nc6 b8Q Rb2 Qg8 Nb8 Nb4 Bc2 Nd3 Bb1 Ke4
Qq3n2/2bRR3/1rrBP3/1nrq2bQ/Qrp5/P1knb2K/Q1P1B2N/7b b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 Nd2 f6 Ne4 fxg5 Ng3 hxg3 Bf4 g4 Bg5 Nf6 Bc1 Ng8 f4 Kf7 e4 Ke6 h4 g5 a3 d5 h5 c5 h6 b5 h7 g2 Kf2 c4 Kg3 d4 Qe1 d3 Qe3 d2 Ra2 d1Q Bd2 b3 Qa7 b4 Qb7 b2 Rh4 b1R Rb2 b3 Ra2 b2 Nf3 g1R+ Kh2 g3+ Kh3 g2 Qb3 g4+ Kg3 Nf6 Bb4 Bd6 Bd2 Nc6 Ne1 Bb7 Qf3 Ra5 Rh6 Rc5 Rh4 Bc7 Be2 Qb8 Ra1 Nd7 Qb3 Rc8 h8Q Nf8 Bb4 Qd5 Nf3 Rgf1 Rh3 g1B Rh7 Be3 Qa2 Bd2 Kh4 g3 Kh3 g2 Nh2 g1B Rd7 Bge3 Qh5 Rg1 Kh4 Rg6 Kh3 Ra5 Bd6 Nb4 Qh4 Rc5 Qh5 Rbg1 Re1 b1N Rd8 Nd3 f5+ Kf7 f6 Ke6 f7 Nc3 Rd7 Nb5 Rd1 Bg5 Rf1 Bde3 Re1 Nh7 f8Q Ba8 Ra1 Rb1 Qff3 Rb4 Re1 Ba5 Qf8 R8c6 Qc8 Nf8 Qa6 Bb7 Qa8 Bc7 Qa4 Be7 Qa8 Kf7 e6+ Kf6 Qa4 Bed8 e7 Ke6 e8Q+ Be7 Qc8 B7g5 Be7 Ke5 Bd6+ Kd4 e5 Kc3 Qd8 Qa7 Qa8 Rb6 Be7 Rgc6 Bd6 Qb8 e6 Bc8 Re7 Bd7 Rb1 Be8 Rb2 Bg6 Rb1 Be4 Rf1 Bh1 Rff7 Qa7 Rd7 Qb8 Rfe7
KRbN4/Bn1q2pr/3R1b1k/4q2b/PNR2nP1/4b3/1Rnr1P2/Q2qQ1n1 b - - 0 1 legal: proof: e4 d5 b4 f5 c4 fxe4 cxd5 h5 b5 h4 b6 h3 g3 axb6 Qa4+ b5 Bg2 hxg2 Qd1 b4 Ke2 Kf7 Ke3 Kg6 Kd4 e5+ Kc4 c5 Kb5 c4 h4 e3 d4 b3 g4 e2 Bh6 e1Q a3 e4 d6 b2 d5 e3 h5+ Kh7 d7 c3 d6 e2 Qd2 c2 Kc5 c1B Nc3 b1Q Nd5 b5 Ra2 b4 Be3 b3 h6 b2 Nf3 Nf6 Ne5 Nc6 Nf7 Na5 Nb4 Nh5 Qd1 Qe8 Kb6 Nf4 d8Q Be7 d7 Qc2 Qd4 b1B Qa1 Qa4 Qc7 Bg6 d8R Bh5 Qcc3 Bg5 Rd7 Qe5 Nd8 Kg6 Rd4 Qd7 Rc4 Be7 Rf1 g1N Bd4 Qd2 Rd1 e1N Bc5 Qc2 Rd3 Be3 Rd1 Nef3 Qe1 Nd4 Rd2 Qd1 Rd3 Ra7 a4 Qdf5 Rb2 Nc2 Rd5 Rd7 Bd4 Rd6+ Ka7 Qd7+ Ka8 Bg5 Ba7 Bh4 Rb5 Rd2 Rb8 Nb7 h7 Rg8 h8R Bg5 Rh7 Rh8 Rc3 Bh4 Rh6+ Kg5 Rhc6 Rh7 R6c4 Kh6 Rd3 Bf6 Rd6
1B1r3r/3b1b1b/pK3PRk/P4n2/1b1R1n1r/QQ1N1b1B/PqB1b3/3Br3 b - - 0 1 illegal: No proof kernel
1N1kn1Q1/3P1qRK/5p2/Rb1nbrrn/N1Q5/N1P1rP2/B3b1bn/4N1r1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 dxe4 Ba3 g5 axb5 gxh4 b6 Qd5 b5 Qd8 Bb4 cxb4 Ke2 h5 Ke3 e5 d4 a5 g4 a4 b7 h3 d5 h4 b6 f6 d6 a3 g5 a2 c3 h2 g6 h3 g7 b3 Qd3 b2 Qa6 Bd7 Bb5 Qe7 Bc4 Rh5 Bd5 Qf7 Na3 b1B Qe2 Kd8 Be6 Na6 b8N Nc7 b7 Ne8 Qc2 Ra5 Qd3 Ne7 Qd1 Bd3 Rc1 a1R g8Q Rc5 Qb3 B7b5 d7 Rb1 Kd2 e3+ Ke1 e2 Na6 e4 Kd2 e1N Ke3 Nf3 Kf4 e3 b8N e2 Rf1 e1R Nc4 Re3 Rc1 Rcd5 Nc5 Be2 Rc2 Ra1 Ra2 Rf1 Kg4 Rdf5 Ra5 Bh6 Qa2 Bf4 Na3 Be5 Na4 Re1 Bc4 Nd5 Bb3 Nd2+ Nf3 Nf1 Rg1 h1N Bc4 h2 Qb3 Ra1 Qb4 Rc1 Ba2 Nhg3 Qc4 h1B Rg2 Rh6 Rg1 Rg6+ Kh4 Nh2 Rg2 Rf1 Ne1 Rg1 f3 Ne4 Rg5 Bg2 Kh5 Rg7+ Kh6 Ng3 Rh5 Rg4 Rg5 Nh5 Rg7 Rgg5 Kh7
1Rqn2QK/1Q4nP/qpBb2R1/n1kN2p1/rNrQ4/5bP1/Q2P3q/1b1r4 b - - 0 1 illegal: No extended proof kernel
rq1n3K/rP1pBp2/1r1bNQQ1/2QP1P2/1Qb2n2/1NR1qb2/3n4/1q3k1B b - - 0 2 legal: proof: d4 b5 b4 c5 h4 e5 d5 g5 a4 cxb4 axb5 gxh4 Ra3 Ne7 Rd3 Ng8 Rd4 exd4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 g4 h5 f4 d3 c4 b3 f5 d2 e3 Kg5 Ke5 h3 e4 Kh4 c5 Kg3 g5 Kf2 g6 b2 g7 h2 c6 h4 c7 a4 b6 a3 Ne2 h3 Nd4 a2 Qb3 d1B Qb4 a1R Bg5 Ba6 c8Q Ne7 Kf6 Bf3 g8Q Bc4 e5 Rh6+ Qg6 R1a7 e6 Nbc6 Nd2 b1N N2b3 Nd2 b7 Qc7 Be2 Nd8 Rc1 h1Q Rc3 Qb8 Qcc5 h2 Bd3 Qd1 Be4 h1Q Bh4+ Kf1 Bg5 Nc8 e7 Qc1 e8Q Bd6 Kg7 Ne7 Ne6 Qe1 Qf6 Ng6 Qg8 Nf4 Qh7 Qg1 Kh8 Qb1 Bh4 Qe3 Bg5 Bg4 Bh1 Rg6 Qe5 Bf3 Be7 Rf6 Qg6 Bc7 Ng7 Rb6 Qef6 Bd6 Ne6
2RKQB2/1Qnb1P1P/k2Rr3/4p3/r1b1Ppn1/1N1nbQ2/1rQ1Nb2/4b2q b - - 0 1 illegal: No possible last move
3k1Br1/1P3Q1b/nr2Nb2/1pQ1bb1Q/2n1r1Q1/1P2P1pK/qN2b3/n4BR1 b - - 0 1 illegal: No proof kernel
qbb3b1/3N1r1k/1PB2bq1/1PNQB1p1/b5P1/Qr1B1n2/r3np2/2RK2B1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 e5 d4 cxd4 f4 exf4 Ra3 h4 Rg3 hxg3 h4 f5 c4 Kf7 e4 Kg6 e5 d5 e6 a5 h5+ Kh7 h6 g5 e7 f3 e8Q f2+ Ke2 d3+ Kd2 d4 c5 f4 b6 g2 c6 f3 b5 a4 c7 a3 Qe3 a2 Ba3 a1B Rh2 Nf6 Bb2 Ra2 Be2 f1R Qc1 Nd5 Rh3 Nd7 Bd1 Nf4 Qc2 Bd6 Nc3 Ne5 Rh1 Ne2 Ne4 f2 Qb3 Rf8 Nc5 Rf7 Nf3 g1Q Bc2 Rb1 Qd5 Qg8 Bc1 Qg2 Kd1 Qg6 Rg1 d2 Qa3 Rb3 Bd3 Bf5 c8B Bb8 Ba6 Bc8 Bb7 Qh1 Bc6 Bb2 Kc2 d1B+ Kd2 Bc2 Re1 Bb1 Kd1 Bc3 Bf4 Bb2 Bc2 d3 Bh2 d2 Bg1 Bc3 Bf5 Bd3 Rf1 Bc4 Bd3 Bb2 Nd4 Qg2 Nd7 Nf3 Ne6 Bf6 Nec5 Rg7 Qd6 Bg8 Qd5 Rf7 Qb2 Kh8 h7 Kg7 h8B+ Kh7 Kc2 Qh1 Rc1 d1B+ Kb1 Rc3 Qa3 Ba4 Bg7 Be7 Be5 Rb3+ Qb2 Bf6 Kc2 Nh2 Kd1 Qhe4 Qa3 Nf3 Qc4 Qd5 Ba8 Qb7 Qd5 Qa7 Bb7 Qa8 Bc6
2B2b2/rpPq3q/1Pn3kn/2Rp1r2/Q2N4/nP3nK1/1bQRQ2n/Q3Nb2 b - - 0 1 illegal: No proof kernel
bq1BQRNb/1n1R1NbK/1n6/1n5p/1p1bQ1P1/P2Rr3/bk5P/3rq2R b - - 0 1 legal: proof: e4 a5 c4 f5 f4 d5 cxd5 g6 b4 axb4 Be2 Ra7 Bg4 fxe4 f5 Ra5 f6 Ra8 Bf5 gxf5 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 b5 f7 h5 Kg6 e5 d3 c5 a3 e3 d6 e2 d7 e1B Nd2 Kc3 d4 f4 d5 c4 d6 b3 Nh3 b4 Rb1 e4 Nf1 f3 Nf2 b2 Qe2 e3 Ng3 Nf6 Qf1 e2 Nf5 Ne4 Ne7 Bg7 f8Q Bb7 Qh3 Nc5 Qf4 Re8 Ng8 Re3 Ra1 b1N Bd2+ Kb2 Ne4 c3 Qf1 f2 Qf3 c2 Nh6 c1B Qf8 Nc3 Qe8 Nb5 Qg1 f1B Nf6 Bf2 Nf7 e1Q Ng8 Bc4 Qg2 Ba2 Kh7 Bf3 Rf1 Nb7 Qh1 Qc8 d8R Nd7 Qg2 Bfd5 Qge4 Nb6 Rd7 Qc7 Rh1 Rd8 Rf1 Qb8 Bc3+ Kb3 Bf6 Bb2 Rh1 Be5 Rd1 Kb2 Rd3 Bd4 Bh4 Bg3 Be7 B3e5 Bf6 Bh8 Be7 Beg7 Bh4 Rc8 Bd8 Rc1 Nfh6 Na8 Bc7 Rg3 Re7 Na5 d7 Nb6 Rf7 Ra1 d8R Re3 Rf8 Ba8 Rd7 Nb7 Bd8 Rd1 Nf7
2qb1nb1/1P1Qnbp1/1P6/NbRq1p1r/2b2BP1/NQ3NrR/5rkN/K7 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Nd2 b5 axb5 h5 Bh3 h4 Bg2 h3 Nb1 hxg2 Kd2 Ke7 e4 Kd6 h4 Ke5 b4 d5 c4 f5 Kc2 a5 Kb2 a4 c5 a3+ Ka2 d3 b6 d2 b5 d4 g4 f3 h5 Kf4 h6 Kg3 h7 f2 b7 f1B c6 d3 c7 Nd7 b6 Be7 e5 Nf8 e6 Qd5+ Qb3 Bd8 e7 Be6 e8N Ne7 c8Q Bg8 Nd6 d1B Bb2 Qe5 Qc6 Bde2 Qbc4 d2 Bc1 d1B Qd7 Qc5 Rh5 Qc8 Bf4+ Kf2 Qf7 Bb5 Nc4 Bf3 Rh3 Bd5 Qfe6 Be2 Qe3+ Kf1 Qd3 Bdf7 Q3d5 Ra4 Na5 Rc4 Q5e6 Rc3 Qb3 Bed3 Ne2 g1Q Ng3+ Kg2 Nf1 Qd4 Nh2 Qe4 Nd2 Bf1 Ndc4 Rg3 Rc1 Qd5 Kb1 a2+ Kb2 a1R Na3 Be8 Rc5 Ra2+ Kb1 Rf2 Ka1 Bfc4 Bb8 Be6 Bf4 Rg8 h8N Bh5 Ng6 Rh8 Qa2 Bg8 Ne5 Bhf7 Nef3 Rh5 Qb3
N5Q1/3q1Q1r/2qBnrR1/n2kq2P/1Bp3p1/b1PN1b1q/2Knb1PB/4B3 b - - 0 2 illegal: No proof kernel
n2R4/Qpr1p2K/2kB3Q/4PR1Q/1Pqq1nb1/2N2b2/1Qn1PNn1/2qbr3 b - - 0 2 legal: proof: d4 a5 f4 c5 h4 cxd4 b4 g5 g3 gxh4 Bh3 a4 Be6 Bg7 Bb3 Be5 fxe5 axb3 Kf2 d5 Kf3 Kd7 Kg4 f5+ Kh5 f4 a4 h3 c4 h2 g4 d3 g5 f3 c5 f2 g6 f1N a5 d2 g7 b2 a6 d4 a7 d3 Nf3 Ne3 Nd4 Nc2 Ne6 Kc6 Re1 h1Q+ Kg5 h5 Kg6 h4 Nf4 h3 Nh5 h2 Ng3 Qhd5 Rf1 h1B Nc3 b1Q Nge4 Bf3 Nf2 Nf6 g8Q Qc4 Qg7 Nd5 Qh6 Bcg4 Qh5 Re8 Kh7 Na6 Ra3 Rc8 a8Q Rg8 Qa7 Nac7 Bb2 Na8 Qc1 d1N Qch6+ Qd6 Bc1 Rg5 Be3 d2 Ra5 Qc1 Rb5 Kc7 c6 Nf4 Bc5 Qdd4 Rb6 Nde3 Bd6+ Kd8 c7+ Kd7 Ra6 d1B Ra5 Neg2 Rd5 Qb6 Rd2 Kc6 Rd3 Qbd4 Rd2 Rd8 Rd3 Rd7 c8Q+ Rc7 Qg8 Qa6 Qa2 Qac4 Qb2 Qde3 Qf7 Rh5 Rd5 Rh1 Qfh5 Qed4 Bc5+ Ng6 Rd8 Rg1 Bd6 N6f4 Nfe4 Rh1 Rf2 Re1 Rf1 Qa2 Nf2 Qac4 Nd5 Nh3 Nc3 Bd5 Nh1 Be4+ Rf5 Nhf4 Nf2 Bd5 Qaa3 Bdf3 Qa7
Q5B1/p1n1kb2/3b4/1q1r1Q2/P2P1qNK/P2NB2b/pbnQ2r1/1q1r2RQ b - - 0 1 illegal: No proof kernel
nr1Bn3/pkpnbR2/4P3/2Q3b1/PPRq3n/1qN2b1Q/1Q6/NKQ3rq b - - 0 1 legal: proof: g4 e5 d4 h5 dxe5 f5 c4 b5 Nf3 bxc4 Kd2 f4 Ng1 hxg4 Bg2 f3 Ke1 fxg2 Kd2 g5 Kc2 d5 h4 Kd7 f4 Kc6 b4 g3 e4 c3 a4 d4 f5 d3+ Kb3 d2 Ka2 g4 f6 c2 f7 Be7 f8Q Qd5+ Kb2 Nf6 e6 Rg8 e5 Nbd7 h5 Rb8 h6 Ne8 h7 Kb7 Nf3 g1N h8Q g2 Qhf6 g3 Nd4 Nf3 Nb3 g1Q Nc3 g2 Rh7 Qgd4 Rf7 g1Q Q8h6 Rg5 Qh3 Nh4 Ra2 Rg3 Na1 Qgh1 Qh5 Rg1 Ra3 Bd6 e7 Q5c4 Rb3 d1N+ Ka2 Bc5 e6 Nb2 Bg5 c1B Kb1 Qcd5 Qf2 Nc4 Qb2 Ncb6 Qd1 Bd2 Qdc1 Na8 Bf6 Bg5 Ra3 Nd6 e8Q Qb3 Qf8 Ne8 Bd8 Bce7 Ra2 Ka6 Ra3 Bb7 Ra2 Bf3 Ra3 Bef6 Qc5 Kb7 Nd5 Qbe3 Rc3 Be7 Rc4 Qb3 Nc3
4B3/2Nr4/2Pp2pb/1B2qrQQ/2N1P1B1/k1qn2Bq/n1bPK3/rnrR4 b - - 0 1 legal: proof: f4 a5 g4 h5 a4 hxg4 b4 axb4 Kf2 c5 Ke1 e5 Ra3 c4 Rb3 cxb3 fxe5 Qe7 Na3 Qf6 Nb1 Qd8 h4 Ke7 c4 b5 e6 Kd6 h5 Kc5 e7 f5 e8B g6 h6 g3 h7 d6 a5 g2 e3 b2 a6 f4 a7 b3 Be2 Kb4 c5 f3 c6 Qf6 Qc2 f2+ Kd1 Bf5 Rh5 Bh6 Na3 b1R Rh1 b2 Rh2 Qc3 Bd7 Nf6 Rh3 Na6 Bf3 f1R+ Ke2 Nh5 Rh2 Rhd8 Be8 Rd7 Nh3 g1Q h8Q Qg3 Nf4 Qh3 Rh1 Ra1 Ne6 b1N Qd1 Bc2 Bg4 Rf5 e4 Ka4 Qd4+ b4 Qd5 b3 Nc4 b2 Nc7 Nb4 Rg1 Rb8 a8B Na2 Bb7 Ra8 Ba6 Nf4+ Ke1 Kb4 Bb5 Nd3+ Ke2 Qe5 Rh1 Ra3 Qg1 Rc3 Qe3 Kb3 Qg5 Kb4 Rd1 Kb3 Na5+ Ka3 Qh5 Rc5 Nc4+ Kb3 Qd4 Qg7 Na8 Na3 Ncb6 b1Q Qg1 Qbb2 Nc7 Nb1 Qe3 Ka3 Qeg5 Rf1 Re1 Rh1 Rf1 Rf5 Nc4+ Kb3 Re1 Qbd4 Ba3 Qb2 Bc5 Qbc3 Rg1 Qge5 Bf2 Kb4 Bg3 Kb3 Rg2 Rc1 Rg1 Kb4 Rd1 Kb3 Nb6 Ka3 Nc4+
1r1n1Rbn/Pn2q1R1/K3B1r1/Q1p1NpR1/6Q1/Pkn2P2/4n3/n1b1r1RN b - - 0 1 legal: proof: d4 a5 c4 g5 b4 d5 h4 gxh4 bxa5 dxc4 d5 e6 Be3 e5 Bd4 exd4 Kd2 Ke7 e4 Kd6 g4 Kc5 d6 Kb4 f3 c5 d7 f5 e5 b5 e6 h5 a6 c3+ Kd3 h3 a7 h4 e7 c2 e8Q c1N+ Kc2 d3+ Kd2 h2 g5 h3 g6 Nh6 g7 Qe7 d8R Rg8 Qf7 Nc6 Qe8 Nf7 Qe2 Rb8 a3+ Kb3 Qf2 b4 Qe2 Be6 Qd7 Nh8 Re8 Nd8 Ke3 d2 Qe1 Ne2 Kd3 d1N Qd4 Ne3 Qg4 Nc2 Ra2 Na1 Nd2+ Ka4 Nc4 b3 Rc2 b2 Qa5+ Kb3 Ne5 b1N Rc4 Bd5 Rd4 Be6 Rd7 Nbc3 Rc7 Nb7 Rd7 Nd4 Ne2 Nc6 Ng3 Ncd8 Rg1 h1N Be2 h2 Bd1+ Ka2 Bb3+ Kb2 Bd5 Bf7 Kc4 Ka2 Nf1 Ng3 Be6 Nge2 Ng3 h1R Rc7 Nd5 Kb5 Kb3 Nc4 Ndc3+ Ka6 Kc2 Ne5 Kb2 Rg2 Re1 Rg1 Kc2 Bc8 Kb3 Nh1 Qg5 Bd7 Bd6 Rf8 Qe7 Nd3 Bd5 Be6 Bf4 Ne5 Bc1 Rf7 Rf8 g8R Re8 Rg5 Rg8 Rc8 Rg6 Rg7 Nc6 Bd7 Bg8 Rf8 Ncd8+ Be6+
q1R1Q2Q/1Q2P1k1/Qn1N2Nn/bbp3Bb/4rp2/b2b2P1/1b3PK1/3r1r1B b - - 0 1 illegal: No possible last move, all moves rejected
RQ3bb1/1rBP4/pq1Qn3/1brrQQ1n/P1b3P1/Rr5N/2k1BpK1/4b3 b - - 0 1 legal: proof: f4 c5 g4 h5 b4 d5 bxc5 g5 e4 gxf4 Nc3 dxe4 Nce2 h4 Ng3 hxg3 d4 Kd7 h4 Ke6 a4 Kd5 c6 e5 h5 f5 c7 b5 c3 e3 h6 Ke4 d5 b4 d6 f3 h7 f2+ Ke2 b3 d7 b2 c4 b1B c5 f4 c6 g2 Rh3 Na6 Rh1 Ba2 Qd2 f3+ Kd1 e2+ Kc2 e1R Qc3 Nc5 Kd2 Ba6 c8Q Ne6 c7 Nf6 Rh6 Nh5 Bb2 Rd1+ Kc2 B6c4 Qa5 a6 Ba3 Ra7 Qa8+ Rb7 c8Q Rd5 Be2 f1B Qcc7 f2 Qd6 Qb6 Nh3 g1R Qab8 Rg3 Qb5 Rg8 h8Q Rg5 Bb2 Rc5 Kd2 Rb3 Bc3 Rf5 Ba5 Rg5 Kd1 Ke3 Rg6 e4 Rg8 Rgf5 Qh7 Rfe5 Qf5 Red5+ Bd3 Kd4 Be2 e3 Rh8 Qa7 Bc7 Qb6 Bf3 Bfd3 Be2 Kc3 Rg8 Bab1 Ra3 Ba2 Qa5+ Kb2 Qc3+ Kb1 Qce5 Bb5 Bf1 e2+ Kd2 e1B+ Ke3 Bc4 Kf3 Kc2 Kg2 Bb5 Qg5 Bh7 Rh8 Bg8 Be2 Rbd3 Qgf5 Bac4 Rh7 Kd2 Re7 Rb3 Re8 Kc1 Qa7 Kd2 Ra8 Kc1 Qb8 Kd2 Qff4+ Kc2 Qff5+
2nr2bq/3N1P2/1B2n2r/2R2b2/bp1Q1pPn/1kb5/1n2KPQB/rB3NB1 b - - 0 1 illegal: No proof kernel
b7/1Q1pP3/1r1PbQ1q/Nb1rN1k1/1b1R2Nq/R1Pp2n1/1KBn3n/2nN4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 d5 exf4 Be3 Nh6 Bf2 Ng8 Bd4 cxd4 Kd2 Ke7 Kc1 Kf6 g4 h5 e4 a5 b4 a4 c3 d3 b6 a3 b5 a2 b7 h3 e5+ Kg5 e6 f5 b6 h2 Qe1 h4 Kb2 h3 Bg2 f3 Qe3+ f4 Qe1 f2 Qe3 f1N Qf2 f3 Qc5 f2 Na3 Ra5 Qe7+ Nf6 Nc4 Nc6 b8Q Ne5 b7 Rh6 Ne3 Ng3 Nd1 f1B Bf3 Rg6 Qg7 Bb4 e7 Qb6 Qa7 Nfe4 b8N Ba6 Qb7 Bb5 Nc6 Nd2 Be2 Nef3 Qf6+ Kh6 g5+ Kh5 Rc1 a1N Rc2 Rh6 g6 Nab3 g7 Nc1 g8N Rg6 Nh6 Qd4 Na7 Qh4 Ng4 Rh6 Nc6 Bg2 Qf7+ Kg5 Qf8 Rd6 Qf7 Ra6 Na5 Rab6 Qf8 Re6 d6 Re5 Qf7 Rd5 Qe6 Ndf1 Qf7 N3d2 Qf2 Be4 Qd4 Bf5 Nf3+ Kh5 Rg1 h1Q Qf6 h2 Nfe5 Be6 Rg2 Qg5 Rf2 Qh6 Rf4 Qe4 Bf3 h1B Be2 Qeh7 Rd4 Nh2 Bf3 Qg5 Be2 Qhh6 Bf3 Qh4 Be2 Na2 Rc1 Bg2 Ra1 Nc1 Ra3 Be4 Nde3 Bh1 Bd1 Be4 Bc2 Bg2 Qf7+ Kg5 Nd1 Rc5 Qa6 Ba8 Qb7 Rd5 Qf6+
2Kb1N2/r1n4p/Q3pb2/N1r3qP/2Pb1N1q/RR3r1b/3qPrN1/2B1Q1k1 b - - 0 1 illegal: No possible last move, all moves rejected
4nB1R/Np2q3/1PBP1NK1/1Q3Q2/nP3p1p/2B1b2n/Bk2q3/1rr1qbb1 b - - 0 1 illegal: No proof kernel
Q2b2BN/n5Q1/1pkqn1Pb/3pr1RQ/2q5/1r3pK1/P1QP1B2/3qnN1b b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 b5 Kf2 bxc4 Ke1 g5 hxg5 Qe7 b4 Kd8 b5 Qe5 b6 Qb2 b7 Qf6 Na3 Ke8 Rb1 Qd8 Rb6 axb6 Kf2 c5 g4 h5 e4 f5 g6 c3 g5 f3 g7 c2 e5 h4 e6 h3 e7 c4 g6 h2 Bb2 c1B Ba1 c3 Bb5 f4 Bc4 c2 Qe2 Na6 b8Q Rh5 Qf1 Re5 Qb7 Nc7 Bd3 Bb2 Bf5 c1N Qfa6 Ne6 Qd5 Bb7 Nc4 d6 Qa3 Kd7 Qac5 Ra3 Nh3 Rb3 Rg1 h1Q Rg5 Qd1 Ne3 Ba8 Nf1 Nd3+ Kg1 f2+ Kg2 Bc6 Qc2 Ne1+ Kh2 Kc7 e8Q Ne7 g8Q Bh6 Qg7 Kb7 Qb5 Bh1 Qe2 d5 Qh5 f3 Kg3 Ba3 Bd4 Qd6 Bg4 Bc5 Qb8+ Kc6 Be3 Nc8 Bf5 Nf8 Be6 Na7 Bg8 Ne6 Rg4 Qe2 Ng5 Qc4 Nf7 Bd4 Rg5 Ba1 Nh2 f1Q Bf2 Qe2 Nf1 Qd1 Nh8 Bd4 Rg4 Bde3 Qcf5 Beg5 Qc2 Be7 Rg5 Bd8 Qa8+
4B3/P2r1Q2/1np5/2pb1qP1/Rb4kN/1R1q1Rp1/QKPBq1b1/n1rR1n2 b - - 0 1 illegal: No proof kernel
b5B1/2N4k/2R1br1p/1Q2P3/1B2pn2/Q1K1Pbq1/pN1B1B1P/r2rnq1q b - - 0 2 legal: proof: c4 b5 f4 g5 b4 d5 a4 bxa4 Bb2 dxc4 Bc1 e5 Ra3 e4 Rf3 Bg7 Rf2 Be5 fxe5 Bh3 Rf6 Bc8 Rf4 gxf4 g4 Kf8 d4 Kg7 Kd2 c5 g5 f5 b5 a5 e3 f3 d5 h6 g6 f2 d6 c3+ Kc2 f4 b6 a3 b7 c4 d7 a4 Nf3 a2 Nbd2 a1Q Nh4 f3 Nb3 a3 Qd3 Qg5 d8B Nd7 b8B Bb7 Bd6 Ne7 Nc5 Nd5 Ba5 Qg3 Qd4 Rhf8 Qd3 Nf4 Bb2 Rf6 Bh3 f1B Na4 f2 Nf3 Bg2 Bc1 f1B Bd2 Nc5 Nd4 Bf3 Be6 Bh3 Nb2 Qf1 Bf7 Be6 Nb5 a2 Be7 Rd8 Nc7 Ba8 Bb4 Rd7 Qd5 Ncd3 Qb5 Kh8 g7+ Kh7 Ba5 Rd5 Beb4 Rd7 Be1 Rd5 Bf2 Ne1+ Kc1 c2 Rg1 Nfd3+ Kd2 Nf4+ Kc3 Rd1 Rg2 Qh4 Rg5 Qg3 Rg6 Ra1 Kd4 c1Q Bd2 c3 Bb4 c2 Kc3 Rf5 Rf6 Qb1 Rg6 Bc8 Rc6 c1R+ Kb3 Rd1 Kc3 Rf6 Bd5 Kg6 g8Q+ Kf5 Qg7 Be6 Qe7 Kg6 Qf8 Kh7 Qfc5 Bh3 Bf7 Be6 Qa7 Qh1 Qa3 Neg2 Na6 Rf1 Nc7 Qe1 Qb6 Qe2 Qba6 Rfd1 Q6a4 Ne1 Qb5 Qef1 Bg8+
2R1Q1BN/1K1Q1P1r/1p6/rPPQr1kn/3q1Np1/1p5r/1n2bn1B/b2r1Q2 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 exf5 h5 d4 cxd4 g4 hxg4 b5 Nf6 Ra2 Ng8 Rb2 Nc6 Rb3 Nb8 Rb4 axb4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 c4 e4 h4 b3 f4 g3 a5 e3 h5 d3 a6 b6 a7 e2 h6 e1R h7 d2 c5 g2 Nc3 Bg7 Nce2 Nc6 Nf3 g1R Ne5 Rg3 Ng6 Na5 Rh5 d6 Bh3 Nc4 Kc6 Be6 Kb7 d5 Bg2 d4 Bd5 g4 Rh2 Rc8 a8Q d3 Rh5 Rh3 Rh6 Kf7 f6 Nb2 f5 Qd6 Bc4 Qd4 Nef4 Re5 Qf1 d1N Rh5 Ke8 f7+ Kd8 f6 d2 Bd5 Nf2 f8Q+ Kd7 Rf5 d1R Qf7+ Kd8 Qa7 Ra8 Rh5 Bf5 Bc4 Bd3 Qd5+ Ke8 Be3 Be2 Rf5 Ne4 Bg1 Nf2 Bh2 Re6 Qb8+ Kf7 Qbd6 Ra5 Rh5 Nh6 Rg5 Nf5 Qd8 Ng3 Re5 Rf8 h8Q Nh5 Re3 Re8 Q8d7+ Re7 Qb8 Bh8 Qbe5 Kg8 Qb8+ Kh7 Qe8 Kh6 Re5 Bg7 Nh8 Rf7 Re3 Re5 Rf3 Kg5 Re3 Rf5 Re6 Re5 Rc6 Bf8 Rc8 Rh7 f7 Bg7 Bd3 Rh6 Bh7 Bf6 Bg8 Rh7 Qfg2 Qd3 Qde7 Nc4 Q7d7 Rf5 Q7e6 Ba1 Qh1 Nb2 Qg1 Re5 Q6d7 Qd4 Qf1
2N2r2/pp2bB2/4n1np/1rk2P1B/rr3NR1/qP1BP1K1/r1nQ1B2/2Q2b2 b - - 0 1 illegal: No proof kernel
B1n1R2n/1Kp1b1r1/2r1Rp1b/1BB1pQ1b/3QP1P1/7P/k1q4n/1r2N1nB b - - 0 1 legal: proof: g4 a5 c4 h5 b4 axb4 c5 h4 c6 dxc6 Nc3 c5 Ne4 g5 f4 c4 Ng3 hxg3 fxg5 Bh6 Bg2 Bg7 Bf1 Bf8 e4 Kd7 Ke2 Kd6 Ke3 Kc5 a4 e5 a5 b5 h3 b3 d4+ Kb4 a6 c3 a7 c2 g6 f6 g7 g2 d5 b2 d6 Kb3 d7 b1N Bd2 b4 Ra5 Nh6 g8B+ Nf7 Ra2 Be7 Qf3 c1B Bb5 Rh7 Kd3 Rg7 Be3 Nd2 Ra6 Nf1 Re6 Nh8 Qf5 Nh2 Nf3 g1N Bc5 Ka2 Kc4 b3 Kd5 b2 Ne1 b1R Bf7 Qe8 d8Q Nd7 Kc6 Nb6+ Qd7 Qf8 Qd4 Bd7+ Kb7 Bh6 Be2 Ba4 Be8 Nc8+ B8b5 Bb3 Bf3 Bc4 Rc6 Bf7 Re6 Bh5 Bg2 Ne2 Rf1 Ng1 Bh1 Qd8 Rf3 Qd6 Rb3 Qd8 Qe3 Qd2 Qd4 Qc2 Rd3 Nb6 Rd2 Re8 a8B Nc8 Qdf2 Rd8 Rd5 Rd6 Qd4 Ra6 Rd8 Rc6 Re8
b1Q5/B1NB1p1b/2rp2pn/1Q1P2bn/1RQ1rqrP/2Rbk2P/2n5/Q1K5 b - - 0 1 legal: proof: f4 c5 b4 cxb4 g3 a5 f5 h5 f6 h4 gxh4 b3 Nc3 exf6 Nd5 f5 Nb4 axb4 Ba3 f4 Bb2 Be7 Bc1 Bf8 e4 Ke7 a4 Ke6 c4 Ke5 c5 Kd4 a5 b5 a6 d6 a7 f3 c6 b2 d3 b1R Kd2 f2 c7 b3 e5 b2 e6 b4 e7 b3 e8Q Qf6 h3 Nc6 Qc2 Nh6 Qd1 Be7 Ra5 Rg8 Qf3 Bb7 c8Q Nb4 Qfc6 Nc2 Ra3 Qf4+ Kd1 Rb8 a8Q Bg5 Be2 f1N Bg4 Ra1 Bd7 b1B Rh2 b2 Rc3 Ra7 Rg2 Ra4 Rg4 Rb4 Qa1 Ng3 Qe2 Nh5 Qb5 Bd5 Qf1 Rb6 Be3+ Ke5 d4+ Ke4 Nf3 Ba8 d5 Rc6 Ba7 Re8 Rc5 Ke3 Nd4 Re4 Qbc4 Na3 Ne6 Bd3 Nc7 b1B Kc1 Nc2 Qb5 Rec4 Rg1 Bh7 Rh1 g6 Bb8 Na3+ Kd1 Qe4 Rh2 Qe5 Rb2 Rg4 Kc1 Rbe4 Rb4 Qf4 Rc2 Rb6 Qfc4 Rc6 Rc3+ Bd3 Rbb3 Nc2 Rb2 Rb6 Rb4 Rc6 Ba7+
R1n3nn/r1qNbb2/p3N1B1/PPRr4/1k1p2N1/b3QK1b/2P3p1/5NrQ b - - 0 1 legal: proof: d4 f5 e4 h5 exf5 c5 g4 cxd4 a4 hxg4 b3 b5 Bb2 b4 Ba3 bxa3 Ke2 d5 f4 Kd7 h4 Kc6 b4 e5 h5 g5 h6 a2 f6 d3+ Kf2 a6 f7 d4 b5+ Kc5 f5 g3+ Kf3 d2 h7 g2 f6 g4+ Ke2 g3 a5 e4 Qc1 d1B+ Ke1 e3 Rh6 e2 Nh3 g1R Nf2 g2 Qg5+ Kb4 Qe3 Bh3 Ng4 Be7 Kf2 e1N f8N Qc7 f7 Nf3 Bd3 Nc6 Ne6 Na7 f8N Nc8 Bg6 Ne5 Nd2 Nf7 Nf1 Ra7 Nd7 Be2 Rh4 Bc4 Re1 a1B Rh5 Bb2 Kf3 Ba3 Rf5 Ngh6 Re2 Rd8 h8Q Ng8 Rc5 Ba2 Qhe5 Nh8 Qh2 Bc4 Qh1 Rf8+ Ke4 Rf5 Rf2 Rd5 Rf8 Bb3 Kf3 Rh5 Nd8 Bf7 Ne6 Rd5 Rd8 Nb6 Rb8 Nc8 Ra8
5RQk/3pPQn1/2r3BK/1nb2p2/p2qr3/5bRR/nPN2P1N/1brR2b1 b - - 0 1 illegal: No possible last move, all moves rejected
bqQ4N/n5Kb/4rQ2/1R2Q1pN/1Bb2pB1/p2Q2PP/Pbr1n3/1q3bk1 b - - 0 2 legal: proof: f4 e5 b4 c5 bxc5 h6 d4 exd4 Nd2 g5 Rb1 gxf4 Rb3 Nf6 Rg3 Ng8 Rg5 hxg5 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 a5 e3 b5 h3 b4 g3 b3 c3 a4 c6 d3 c7 f3 Be2 a3 Nf1 d2 Bb2 f2 Nf3 Bb7 c8Q Nf6 Bc1 b2 N1h2 b1Q+ Bd3 f1B Ne5 Rh6 Qe1 d1B Qf2 Bg7 Bd2 Bde2 Nhg4 Ne4 Ng6 Nc6 Nh8 Re6 c4+ Kc5 Bc2 d5 Nf6 d4 Nh5 d3 Qd7 Rc8 Bd1 Nc3 e4+ Bd4 e5 Na7 Qf3 Ba8 Qe7+ Qd6 Qf6 Qdb8 Be1 d2+ Qd3 Na4 Rh2 Bb2 Rf2 Nc3 Rg2 Rd6 e6 Rc7 e7 Re6 e8Q Rcc6 Ba4 d1B Rg1 Rc8 Bd7 Bb3 Rh1 Bed1 Rg1 Ne2 Rh1 Bdc2 Bb4+ Kb6 Qee7 Rcc6 Qe5 f6 Kg6 f5+ Kh7 f4 Q7f6 Rc5 Kg7 Rc7 Qf3 Bh7 Rh2 Rcc6 c5+ Kb5 Rg2 Kc4 Rh2 Rc7 c6 Rc8 Qg2 Kd3 c7 Bc4 Qgd5+ Nd4 Qb5 Ne2 Qa6 Rd6 Bg4 Re6 Qeb5 Ke3 Qbe5+ Bhe4 Rh1 Kf2 Qad6 Kg2 Qd3 Bh7 Rh2+ Kg1 Rf2 Rd8 c8Q Rd5 Rf3 Rc5 Re3 Bb5 Re4 Rc2 Rc4 Ba6 Rc5 Bc4 Rb5
b1bQ3b/K3p3/p1r2r1k/2pqN3/PP1nNR1b/5NnN/1QPB4/1R3q1b b - - 0 2 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 Bg2 hxg4 Bc6 bxc6 Kd2 Kf7 Kd3 g5 Kc4 Kg7 Kc5 d5 a4 g3 f4 g4 b4 g2 h4 g3 h5 d3 Bb2+ d4 Ra2 d2 Rh3 Nf6 Nc3 d3 Qa1 d1B Rh4 d2 Ne4 Rh6 Nh3 g1Q+ Bd4 g2 Rb2 Be2 Rb1 Bf3 Qb2 Rg6 h6+ Kh7 Nef2 d1B Be3 Bg7 Bd2 Nh5 f6 Qf1 f5 g1B f7 Bh1 f8Q Bdf3 f6 Bh2 f7 Rf6 Rd4 Bg3 Rf4 Bh4 Qh8+ Kg6 h7 Kh6 f8N Ng3 Ne6 Bd5 Qe8 Bde4 h8N Bd5 Ng6 Bh8 Ne4 Qd6+ Kd4 c5+ Kc3 Bc6 Nd4 Qd5 Qd8 B6b7 Nf3 Nc6 Nge5 Nd4 Bc1 Rb8 Be3 Ba8 Bd2 Qf2 Kd3 Rbb6 Kc3 Rbc6 Kd3 Qd7 Kc4 Qf1+ Nd3 Ne6 Kb5 a6+ Ka5 Qd5 Nde5 Rc7 Kb6 Rc6+ Ka7 Nd4 Qb3 Ngf5 Qa3 Ng3 Qb2
b1R2r1N/K1R1Q2p/P1r1Q1pP/B4bb1/QnN2qnk/q1Pr2Q1/4rp2/8 b - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 f5 gxf5 a5 Bg2 axb4 Bh3 Ra3 Bf1 Ra8 f4 e6 f6 Ra6 f7+ Ke7 f5 Kd6 f6 Ra8 Bh3 Kc6 Bf5 exf5 Kf2 Kd6 e4 Ke5 h4 b5 a4 d5 c3 f4 a5 b3 h5 g6 h6 f3 a6 d3 Ke3 d4+ Kd2 Kf4 e5 Kg4 e6 b4 e7 b2 e8Q b3 Rh3 Qa5 Qde2 Be7 f8Q Bb7 f7 Nf6 Qa4 Nc6 Na3 b1R Nc4 b2 Rh5 Rc8 Rc5 Kh4 Qe6 f2 Nh3 Ba8 Ng5 Nb4 Rc7 Ng4 Ra2 Bd8 Qfd6 Rf8 Ra3 Ra1 Rb3 b1B Ba3 Ra2+ Rb2 Qf5 Qde5 Qf4+ Qe3 Rg8 f8Q Be7 Qfe8 Rf8 Nf7 Bg5 Nh8 Bc2 Q8e7 Bb1 Kd1 d2 Ke2 d1R Rd2 Bf5 Qg3+ Kh5 Rb2 Rd3 Rd2 Rb8 Rc8 Rb6 Rb2 Rc6 Rc7 Nc2 Rb8 Rb2 Rbc8 Nb4+ Kf1 Re2 Kg2 Nc2 Bc5 Nb4 Bb6 Rd1 Ba5 d3 Qe5 d2 Qee3 Rh1 Q3e6 Rh3 Kf1 d1Q+ Kg2 Qfd2 Kf3 Qa1 Qe3 Bd7+ Ke4 Qa3 Qe6 Qdc1 Qe7 Be6 Kd4 Bf5 Q3e4 Qf4 Qe6 Rb6 Kc5 Rc6+ Kb5 Rh1 Qee3 Rd1 Qe7 Rd3 Q3e6 Rc5+ Kb6 Rc6+ Ka7 Ne3 Qf3+ Ng4 Qg2 Kh4 Qg3+
KN1bb1R1/1NPq2p1/1bN3Pp/n1B4P/1Q3n1N/1rn1p1q1/Q1k1b3/4Br2 b - - 1 2 legal: proof: d4 b5 b4 c5 e4 e5 Bd3 exd4 a4 f5 axb5 c4 e5 Nf6 Be4 fxe4 Ra3 Ng8 Rd3 cxd3 Kd2 Ke7 f4 Ke6 h4 Kf5 c4 d5 g4+ Kg6 b6 a5 g5 Kf5 b5 a4 e6 a3 c5 a2 b7 a1B g6 Qf6 b6 Ne7 c6 Bd7 c7 Be8 Qe2 Ra3 Nf3 Qg5 Ne5 Rb3 Nc6 Qg3 h5 h6 Rf1 Rg8 Ba3 Bb2 Bb4 Ba3 Ba5 Bc5 Rf3 Na6 b8Q Nb4 b7 Bb6 Ne5 Nec6 e7 Bf7 e8N Be7 Re3 Bd8 Qf2 Rf8 Nd6+ Kf6 f5 Be8 Re2 Kg5 Qg2 Kf4 f6 Rf7 Qc8 Rf8 b8N Rf7 Qb7 Rf8 Kd1 d2 f7 Nd3 Kc2 d1N Nd2 Nc3 Ndf3 e3 Rf2 Rb5 Bb4 Na5 Bc5 Rb3 Nec6 Ba7 Qb4 Bb6 Nb7 Ke4 Qh2 Nf4 Nh4 Qf3 Kc1 Kd3 Rf1 Qg3 Qa2 Ra3 Kb2 Kd2 Qab3 d3 Qa2 d4 Rf3 Kd1 Rf2 d2 Rf3 Rh8 f8B d3 Bfd6 Rf8 Be5 Ng2 Rf7 Nf4 Rd7 Nb1 Bc3 Rf6 Rf7 Rf5 Rf8 Rb3+ Ka1 Kc1 Rg8 d1B Be1 d2 Qaa3+ Kc2 Ka2 Be2 Qb2+ Kd1 Qa1 Rc3 Kb2 Rd3 Qa2 Nc3 Ka3 Rf7 Qd4 Kc1 Kb4 d1Q Qdc4 Ne6 Qg4 Rf1 Qd4 Nf4 Qd6 Ncd5+ Kb5 Nc3+ Ka6 Qa4 Nd4 Qd7 Ndc6 Na4 Qd4 Rb3+ Qc4+ Nc3 Qb5 Nc4 Qb4 Kd1 Nba5 Kc1 Kb7 Kd1 Ka8 Kc1 Nb7 Na5 Qaa4 Kc2 Qa2+
4Rnb1/p2b1pq1/R4P2/2krQn2/Nn2b1rp/P2b2P1/1qQB1KR1/1R2N3 b - - 0 2 legal: proof: d4 b5 g4 e5 c4 bxc4 f4 exd4 f5 g6 f6 Ba6 Bg2 Bd6 Be4 Bg3+ hxg3 Bc8 Bf5 gxf5 e4 h5 b4 d5 g5 Kd7 a3 Kd6 g6 c5 g7 d3 b5 h4 b6 d4 b7 c3 Rh3 c4 e5+ Kc5 e6 c2 e7 c3 e8R d2+ Ke2 d3+ Kf2 f4 Qf1 d1B Re1 d2 Qd3 f3 Ne2 Bd7 Qg6 Rh5 Kf1 f2 Qd3 Ne7 g8R Qf8 Qa6 Qg7 Ra2 Nf5 Nd4 Bf3 Rh8 d1B Qd3 Be4 Bb2 c1Q Rh1 c2 Bc3 Qb2 Bd2 c1N Re8 Bc2 Nc3 Rg5 Re2 Rg4 Nf3 Bb1 Qc2 Nd3 Kg2 f1B+ Kg1 Nb4 Kf2 Qb3 Re3 Bfd3 Ne1 Qb2 Re2 B7b5 Rf1 Nd7 b8Q Nf8 Rh1 Bd7 Qe5+ Kb6 Re3 Rc8 Rg1 Rc5 Rg2 Rd5 Ra1 Kc5 Re6 Nh6 Ra6 Bh7 Re2 Nf5 Re4 Bg8 Re2 Ba2 Rb1 Bb3 Qb8 Bbc4 Re8 Be4 Qe5 Bcd3 Na4+
3q3k/2b3Nb/3bqnqQ/1P5Q/p2prP2/P1B1B1b1/1nB3pr/1K1B1NR1 b - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 h5 c4 bxc4 b4 hxg4 Nd2 f5 Rb1 f4 Rb3 Nf6 Re3 Ng8 Rg3 fxg3 h4 Kf7 e4 g5 e6+ Kg7 a3 c5 h5 d5 e5 a5 b5 c3 f3 g2 e7 d4 e8Q g3 e6 c2 e7 a4 Rh3 c4 Qe2 g4 Qe3 c3 Qe5+ Nf6 Qe3 Nc6 Be2 Na5 Bd1 Bf5 Bb2 c1Q Nf1 c2 Ne2 g1B Bc3 g2 Rh1 g3 Nf4 Bh2 Rg1 Nc4 h6+ Kh7 Ne6 Nb2 Qg5 Qf4 Qeh5 c1B e8B Qfd6 Ke2 Bf4 Ng7 Ra7 Bc6 Qe6+ Be4 Bc7 Kd2 Bfd6 Kc2 Kg8 f4 Bh7 Kb1 Rb7 Bec2 Rb8 Rh1 g1Q Qgh4 Qg2 Rg1 Qc6 Q4g5 g2 Qgh4 Bg3 Qh2 Be4 Q2h3 Qce8 Qh1 Qg6 h7+ Kf7 Q1h2 Re8 h8B Kg8 Bd2 Rb6 Be3 Rc6 Q2h3 Rc5 Qh6 Rh5 Qf5 Rh2 Qfh5 Qeg4 Nf5 Bd3 Bg7 Re4 Bf8 Qh3 Ng7 Qe6 Q6g5 Be5 Bb4 Bed6 Qf3 Kh8 Bc3 Re5 Qc6 Bf5 Qa6 Re4 Qg4 Qg5 Qc6 Bh7 Qh3 Qgf5 Qc5 Qg5 Qh6 Qg6 Qch5
1k4RK/R1prQ2b/8/P1bBpR2/3N1N2/4P1n1/1qp1P1qn/nrqqRQ2 b - - 0 1 illegal: No proof kernel
kQ3K2/r1qR4/6pQ/prBqr1R1/1Qp3b1/1n3Q2/PqPN1NP1/r1b4n b - - 1 3 legal: proof: h4 c5 b4 e5 bxc5 Qxh4 e3 d5 Be2 Qh2 f4 exf4 Bc4 dxc4 Kf2 Kd7 Kf3 Kc6 Ke4 f5+ Ke5 b5 d4 Kb7 e4 a5 d5 h5 d6 b4 d7 h4 Ke6 f3 Kf7 f4 d8Q b3 e5 b2 e6 g6 e7 h3 e8Q f2 Qde1 f1Q Na3 b1Q Nf3 Na6 Q1e2 Bg4 Ne5 f3 Rg1 f2 Bd2 Qb2 Nd3 Ra7 Qe8e7+ Qc7 Rd1 h2 Be3 h1R Nb1 R8h5 Nd2 Nf6 Qf3+ Ne4 Qd6 Qe1 c6+ Ka8 Rf1 Re5 Bc5 Bh6 Kg8 Bg5 Kf8 Rh5 Rh1 f1R Nf2 Be3 Qde6 Rhg5 Rh5 Ng3 Qh7 Bf4 Qh6 Qe4 Qf6 Qd5 Qd8+ Qcb8 c7 Nh1 c8Q Be3 Qb6 Re1 Nb3 Bc1 Nd2 Rg1 Qcd8 Qc8 Qb4 Rf1 Be3 Nc5 Bd4 Nb3 Be3 Ree7 Bc5 Rge5 Rf5 Reb7 Rg5 Rb5 Be7 Qb8 Bc5 Bc8 Qb6 Qc7 Nde4 Bg4 Rd3 Bf4 Nd2 Ra1 Rd4 Qdb7 Rd7 Qd5 Nf1 Bc1 Nd2 Qcb7 Be3 Qbc6 Bc5 Qc7 Qb8+
3nQ1b1/1r5k/b1PK4/pN3B1p/1n4pr/R1q1r1Pq/RN1bb1RP/3R2Q1 b - - 0 2 legal: proof: d4 c5 a4 b5 axb5 e5 f4 exf4 Bd2 cxd4 c4 Bb4 Bc3 dxc3 Qd5 Be7 Qd1 Bf8 Kf2 f5 Kf3 Kf7 e4 Kg6 b4 d5 e5 a5 e6 d4 b6 d3 e7 d2 e8R c2 b5 c1Q c5 Be6 g3 Qc3+ Bd3 Qc8 b7 Nf6 b6 Ra7 Ra2 Bg8 Re1 Nc6 b8R Rb7 Qc1 d1B+ Ne2 Nd8 c6 Nd5 Qe3 Nb4 Kf2 f3 Nd4 Be2 Reg1 h5 Nb5 Kh7 Bc2 g5 Rg2 Bh6 Nd2 Qd7 Rd1 Qe6 Ne4 f4 Nc5+ Qf5 Nd3 Qh3 Kg1 f2+ Kh1 f1B Qg1 f3 Nb2+ Kg7 Bf5 f2 Ra3 Rh7 Ra2 Re7 b7 Re3 Ra3 Nf7 Rf8 Nd8 b8Q Kh8 Rf6 Rb7 Rfd6 Kg7 Rda1 Kh8 Rdd1 Kg7 R1a2 Kh8 Nc7 Ba6 Qa8 Bfe2 Nb5 f1R Qc8 Rf2 Qe6 Rf1 Qe8 Rf4 Rf2 Rfe4 Na7 Rh4 Nb5 Qg4 Kg2 Re6 Rf4 Qh3+ Kf2 Bd3 Kf3 Re1 Re4 Bc4+ Re3 g4+ Ke4 Bf1 Re2 Bd2 Nd4 Kg7 Ke5 Kh8 Kd6 Kg7 Rf2 Re3 Nb5 Be2 Rg2 Kh6 Be6 Kh7 Bf5+
1q2Q2Q/1r5q/KQ3pqb/B5n1/1RB1r1n1/kPpQ1PN1/2NPb1p1/2n1q3 b - - 0 1 legal: proof: c4 b5 g4 d5 a4 dxc4 axb5 h5 Qb3 hxg4 Qd1 e5 Ra3 e4 Rg3 Nc6 f3 e3 Rg2 Nb8 Rf2 Nf6 Qb3 exf2+ Kd1 Be7 Kc2 Ba3 Kc3 Be7 Qd1 Ng8 Kc2 Bf8 Kc3 Kd7 e4 Kd6 Kb4 g5 Ka5 Kc5 h4 f6 b6 c3 e5 c2 e6 g3 h5 g4 h6 g2 b7 g3 h7 Na6 b8Q Bh6 Ne2 g1Q Bg2 f1Q b3 Qe1 Bb2 c1N Qb7 Rb8 Qa8 Rb7 e7 c6+ Ka4 Nc7 Ka5 Ne6+ Ka6 Kb4 e8Q c5 Qc2 c4 Rh2 c3 Qd3 Ng5 Bh3 g2 Qd5 Qh1 Qee6 Bd7 Bf5 Qb8 Nd4 Qe4 Bg4 Qg6 Nf5 Bc6 Qd8 Bd5 Na3 Bc4+ Nb5 Bd3 Rh4 Be2 Qd3 Qhh2 Nbd4 Qh3 Ba1 Ka3 Ng3 Qh1 Qb6 Qh3 Kb5 a5 Be6 a4 Ka6 Bf8 Qaa7 Ka2 Bd7 a3 Nc2 Nh6 Qbb5 Qh2 Qde3 Nd3 Bb2 Bg7 Qee5 Re8 h8Q Qh3 Re4 Ng4 Be6 Qhh7 Qab6 Bh6 Ra4 Ree7 Qed4 Re8 Bc4 Re4 Qbd7 Kb1 Qdc6 a2 Ba3 a1Q Qce8 Ka2 Bb4+ Kb2 Qdd6 Qe1 Ba5 Nc1 Rb4 Ka2 Qd3 Kb2 Na1 Ka3 Nc2+
2q2bqN/2nQP1q1/pk1NRN2/1R1P1nQ1/6N1/1p1q2B1/Prr1pK2/3b3b b - - 0 1 legal: proof: f4 c5 h4 g5 e4 gxh4 b4 e5 bxc5 exf4 e5 d6 Bd3 d5 Be4 dxe4 d4 Kd7 g4 Kc7 c4 b5 c6 f5 d5 h5 e6 e3 c5 f3 g5 f2+ Ke2 h3 e7 h2 g6 f4 g7 h4 Kf3 f1Q+ Ke4 b4 Qg4 f3 Ba3 h3 Nc3 f2 Kf3 Qc4 Qg5 Nh6 g8N Nf5 Nge2 Na6 Rhe1 Rb8 Nd1 f1Q+ Nf2 b3 Nf4 Qfd3 Ng4 Bd7 Bb2 Rc8 N8f6 Qcd4 Rac1 h1Q+ Ng2 Qh2 Nh4 Qhc2 Ng6 h2 Ba1 Rh7 Nh8 Qcc3 Kg2 h1B+ Kg1 Rh2 Rc2 Kb8 c7+ Kb7 c6+ Kb6 Ree2 Qcc4 Bc3 Be8 Be1 Bh5 Bg3 Qcc3 Re1 Qcc5 Rc4 Rb2 Ra4 Qe8 Ra5 Qf7 Re2 Qg8 Kf1 Rb8 c8Q Nc7 Qd7 a6 Kg1 Rc8 Rb5+ Ka7 Ne4 Qdg7 Nef6 Qcc4 Rf2 Qcc2 Rf4 Qcc3 Re4 Qcc2 Re6 Qc5 Ne5 Bd1 Neg4 e2+ Re3 Qb6 Kf2 Qb7 Re5 Ra8 Re4 Qc8 Re6 Rb8 Ra5 Rb4 Rb5 Rc4 Rc5 Rcc2 Re3 Qb7 Re6 Na8 c7 Qb8 Ra5 Kb7 c8N+ Nc7 Nd6+ Kb6 Rc5 Qc8 Rb5+
2n5/1Q1B2n1/KpB1k2N/B1rb2br/PBp1rP2/Q2p4/1P1bb3/1Nr1q2R b - - 0 1 illegal: No proof kernel
3bn1q1/1p3Nk1/NP5n/1NQrQ3/KB1RP1qp/bNp2B2/3bb2P/q1b5 b - - 0 1 illegal: No proof kernel
r1Q1Rq2/qp5p/p2Q3P/2qP1B2/B1bk3B/4q2n/PK1bq1B1/N1Rr1q2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 Ne2 cxb4 Ng1 e3 Nc3 e6 Nb1 e5 Na3 e4 Nb5 Nd7 Nd4 Ne5 fxe5 g6 Nde2 g5 Nf4 gxf4 c4 Ke7 h4 Ke6 d4 f5 g4 b3 h5 e2 Kd2 f3 Kc3 e1Q+ Bd2 b2 h6 b1Q c5 Kd5 c6 f4 e6 a6 e7 e3 e8B f2 c7 e2 g5 f3 g6 Ne7 g7 Qd6 g8B+ Be6 c8Q Qbb6 Qa4 Ng6 Bd7 Nf4 Qb4 Nh3 Rc1 Qdc5+ Kb2 Qa7 Bg2 f1Q Bg5 Be7 Bh4 Bg5 Be8 Bd2 Ba4 Qef2 Qb6 e1Q Ne2 Qe3 Qd6+ Ke4 Rh2 Bc4 Be6 Rd8 Rh1 Qe1f2 Re1 Rd7 Nc1 Q2e2 Nb3 Kd3 Na1 f2 Qg8 Rc7 d5 Kd4 Bf5 Rc6 Rg1 Rb6+ Kc2 Rb1 Qc8 Rd1 Rh1 Qg1 Kb2 f1Q Bg6 Qf8 Bf5 Qef1 Re2 Qe6 Re5 Qe3 Rg1 Qee8 Re7 Qh5 Re8 Qhe2 Bg4 Qfe1 Rh1 Rc1 Bf5 Q1f2 Rd1 Qff1 Qe7 Rc3 Rb1 Rc1 Qd6 Rd1 Rc1
1N3br1/N1bK1Q2/pk1p1rBp/6Pn/rr2NN1b/P3r2P/1R2q1b1/Q2R4 b - - 0 1 legal: proof: e4 e5 f4 b5 d4 exd4 c4 bxc4 e5 g5 e6 Nc6 Be3 Ne5 fxe5 Bd6 Bc1 Bf8 Bf4 gxf4 Kf2 c5 Kf3 f5 g4 c3 b4 h6 a3 c4 h3 c2 e7 c1B b5 c3 b6 c2 b7 d3 b8N d2 Ne2 Bb7+ Nc6 Nf6 Qe1 d1R Nec3 Rg8 Be2 Nh5 Bc4 Rd3+ Kf2 f3 Nd2 f4 Rb1 Re3 Nde4 a6 Bd3 Rb8 Rb3 d6 Rb4 Kd7 e8Q+ Kc7 e6 Bd2 e7 c1B Qf7 Qe8 Nb5+ Kb6 Rb2 Ba5 g5 Bcd2 Qa1 Be1+ Kg1 f2+ Kg2 f1R Nba7+ Kc7 Rg1 Bh4 Kh2 Rc1 Rd1 f3 Bb1 f2 Bd3 Rc8 Nb8 f1R Bc2 Qb5 e8N+ Kb6 Ng7 Rb1 Ne6 Rf6 Nf4 Rc4 Bd3 Ra4 Kg2 Re1 Kf3 Re3+ Kg4 Ba8 Rf2 Rbb4 Rb2 Re6 Bb1 Qe2+ Kf5 Reg6 Nc3 Bg2 Ne4 Nf6 Ke6 Nh5+ Kd7 Rf6 Qh7 Kb7 Qf7 Bc7 Nd2 Kb6 Bg6 Qf1 Ne4 Qf3 Rd4 Qe2 Rd1
2b3rn/1P1n4/1BpN1b1k/QpnR3b/1PPN1b2/N2rR2p/4nK2/1N1Q3b b - - 0 1 legal: proof: e4 b5 d4 e5 h4 exd4 a4 f5 e5 g5 a5 gxh4 Bd3 Qf6 Be4 Qb6 axb6 fxe4 c4 Kf7 b4 Kg7 f4 d5 g4 h5 b7 a5 e6 e3 e7 h3 e8N+ Kh6 f5 h2 f6 h4 f7 d3 Nf3 d2+ Kf1 d4 Rg1 h1B Qa4 d1N Nc3 h3 Nh2 c6 Nb1 d3 Ra2 d2 Ra1 Nd7 Na3 Nc3 Nf3 d1B Nd2 e2+ Kf2 e1N Nd6 Ne2 Rg3 Ne7 Re3 Rg8 Ndb1 Ng6 Qc2 Bg7 f8N a4 Ne6 Nh8 Nd4 Be5 Bb2 Bf4 g5+ Kh5 g6 Kh6 g7 Nd3+ Kf1 N3c5 Kf2 Rd8 g8Q Rb8 Qd5 Rg8 Bc1 Rg3 Qa2 Ra8 Re5 Rd3 Be3 Rb8 Qg8 Ra8 Rd5 Rb8 Qd8 Ra8 Nac2 a3 Qa5 Rb8 Qb3 a2 Nca3 Ra8 Nc3 Rb8 Rc1 a1B Ncb1 Ng1 Rc3 Bh5 Qd1 Ne2 Rb3 Ra8 Ne6 Bf6 Bd4 Na4 Bb6 Nac5 Nd4 Rg3 Nac2 Rg8 Qa4 Ra7 Re3 Ra6 Qa1 Ra3 Qa2 Rc3 Qa5 Rd3 Nca3
2Q1b3/k2r2p1/3n2Rq/1N1NbRpp/5PP1/NPrn2rQ/4pbBK/n3N3 b - - 0 1 illegal: No proof kernel
7k/Q6n/1q1N1qQP/6qP/p2pRrBp/PNB2p1B/2br2n1/2rB2bK b - - 0 1 illegal: No proof kernel
3q1QN1/1rBr1p2/3r1qP1/1Qkn2pK/1npRQR1b/1Bb3P1/2p1P3/3Q3b b - - 0 1 illegal: No proof kernel
Q2B1K1k/1p1rPb2/1b4qR/1P3p2/1q1N2B1/1Nn1p2B/1BP4p/1nbr1Qq1 b - - 0 1 illegal: No possible last move, all moves rejected
1Rbbn3/2q1n2r/1N4k1/1Pb1pN1q/1Q1B1qp1/6P1/p1B1Pr1p/1B1QKB2 b - - 1 2 legal: proof: d4 b5 b4 c5 h4 cxd4 a4 bxa4 Ra2 g5 Ra3 f6 Rg3 f5 Rg4 fxg4 hxg5 Qb6 Kd2 Qa5 Ke1 Qd8 c4 Kf7 f4 h5 g3 a5 f5 d5 c5 d3 c6 h4 c7 a3 f6 a4 b5 d2+ Kf2 h3 Qe1 d1Q Qc3 a2 Qd4 a1B Qc5 d4 Qb4 a3 Bb2 d3 Bd4 a2 Nf3 d2 Nc3 Na6 Nd5 Rh7 Nh4 Qc1 Nb6 d1Q Nf5 Kg6 f7 e5 Rh2 Bc5 f8Q Bc3 Qd6+ Qf6 Qd5 Ne7 Qdb3 Qdd2 Qd1 Qf7 Rh1 Qdc2 Rh2 Bd2 Rh1 Be3+ Ke1 Bg1 Rh2 Qf4 Rf2 h2 Rf3 Be6 c8B Nc7 Bb7 Rb8 Be4 Bc8 Bd3 Qcc4 Bb1 Ne8 Ra3 Rb7 Ra8 Rd7 Rb8 Rd6 Nd7 Rf6 Bc2 Bb6 Bb1 Bc7 Nb6 Bd8 Bc2 Qc7 Bb1 Kh5 g6 Kg5 g7 Qh5 g8B Kg6 Bb3 Rf8 Ba1 Bc5 Bd4 Qe4 Nh6 Rf2 Nf5 Qf4 B3c2
2rr1q2/p3r3/np1p4/2Q2Rq1/QQ1Pq2P/KN4kb/Pp1B1N2/B3nQb1 b - - 1 2 legal: proof: e4 f5 exf5 g5 b4 c5 f4 cxb4 f6 Kf7 f5 Ke8 Na3 Bh6 Bc4 Bg7 Bf1 Bf8 g4 Qc7 Bh3 Qb6 Rb1 Qd8 Rb3 h6 Rf3 h5 Rf4 gxf4 g5 Nc6 Bg4 hxg4 Ke2 Nb8 Kf1 Qc7 Ke1 Qd8 h4 Kf7 c4 e5 c5 e4 d3 f3 Kd2 b6 Kc2 b3+ Kb2 g3 c6 g2 c7 f2 Nf3 g1R Nh2 f1Q Nb5 e3 Bd2 e2 Nd4 e1Q Ng4 Bc5 Nf2 d6 Qb1 Be6 c8Q Na6 Qc7+ Ne7 g6+ Ke8 g7 Kf7 Qd7 Qe4 Qa4 Rc8 Rh3 Rg4 Rf3 Nc6 Qc2 Ncb4 Ka3 Qg2 Qc3 Bd7 Rf4 Qf8 g8Q+ Ke8 f7+ Ke7 Qb2 Kf6 Qg5+ Ke5 f6+ Bf5 Qh5 Rg7 Qc3 Qg5 Qg4 Qe8 f8Q Re7 f7 Bd7 Qg1 Bh3 Qf1 Rd8 Qh6 Rg8 f8B Rc8 Qh5 Nc2+ Kb2 Rh8 Qcb4 Ne1 Ka3 Rg8 Bh6 Qf8 Bc3 Rd8 Ba1 b2 Nb3 Bd4 Rg4 Be3 d4+ Kf5 Rg1 Kf4 Rg4+ Kf3 Rf4+ Kg3 Rf5 Rc8 Nd1 Bg1 Nf2 Qgg4 Bd2 Qg5 Qbb5 Qff6 Qbb4 Rgd8 Qhe2 Qf7 Qec4 Qf8 Qcc5
1r5B/4N3/2ppQpp1/P2B2P1/BRrPQ1r1/2q1nrN1/bkr1B1n1/5bK1 b - - 1 2 legal: proof: b4 b5 f4 e5 c4 exf4 a4 g6 h4 Bh6 h5 Bg7 h6 a6 hxg7 bxc4 b5 a5 Ra3 Qg5 Rb3 Qd8 Rb4 axb4 Kf2 Ke7 e4 Ke6 d4 h5 g4 f3 e5 Kd5 a5 c3 g5 f6 b6 d6 e6 b3 e7 c2 e8B b2 b7 h4 Bh3 Kc4 Bg4 Kb3 Nc3 b1R Ne4 h3 Ne2 h2 Bb5 Nc6 b8Q Be6 Qe1 Qc8 N4c3 Rb2 Qb7 Ne5 Ng3 Ne7 g8B Rh4 Qbe4 Nf5 Be2 Nc4 Nd5 Nce3 Ne7 Ng2 Rf1 h1B Kg1 Nfe3 Rf2 Bc4 B4e6 Rg4 Bd5 Rb8 Bgf7 Ra2 Ba3 c1R Bc5 Rac2 Bb6 Kb2 Bg8 c6 Bd8 Ba2 Bb3 Qb7 Bgd5 Qb4 Rf1 Rd2 Rf2 Rc4 Qe6 Qc3 Qb1+ Ka3 Qbe4 Rc2 Rf1 Kb2 Ra1 Bb1 Ra4 Ba2 Rb4 Rb6 Ng8 Rb8 Be7 f2+ Kh2 f1R Bf8 Rd1 Ne7 Rf1 Bg7 Rf3 Bh8 Ne1 Qd3 Bg2 Qde4 Bf1 Kg1 N1g2 Ba4+
qnN1R2N/r1QQb3/b2r1QQ1/3p1nn1/1K1pPkP1/1np3B1/2pP3n/5B2 b - - 0 1 illegal: No proof kernel
2b3K1/N2p1R1r/1nQ1Q3/b1nP1bQ1/2PP4/pkr2p1b/pq3NB1/2nQR3 b - - 0 1 illegal: No proof kernel
3n1nK1/2kp1Np1/1r2b3/P2PP1Q1/b2p1qB1/1n3p2/Q6Q/RNbrRbQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 b4 axb4 d5 exf4 Be3 Rh7 Bf2 Rh8 Bd4 cxd4 Kf2 b5 Kf3 f5 h4 b3 e4 b4 c4 b2 a4 b3 e5 Rh6 c5 Nc6 Bb5 Qg5 Nh3 Kd8 Qg1 Nge7 Be2 Kc7 a5 Nd8 c6 Ba6 Bd1 Ng6 Be2 Rh7 h6 Ba3 h5 Rb8 Bd1 Rh8 h7 Nf8 h6 Bb5 Be2 Qf6 Ng5 Rb6 Nf7 Qh4 Qg5 Ba4 Re1 Qh2 Bf1 Qd2 Bh3 Qh2 Bg4 Qh4 Ke2 f3+ Kd3 f4 Ke4 f2 Kf5 f1B Qe7 f3 Qg5 Rg8 h8Q Qg3 Qh7 Rh8 Qhg6 Qh4 h7 Qg3 Qe3 Qh4 Qgg5 Qh2 Nc3 b1N Qg1 Nd2 Nb1 b2 Qh6 Rg8 h8Q Nb3 Qg5 Qd2 Qh3 Rh8 Qhg2 Rh1 Q2h2 Nfe6 Kg6 Qf4 Kh7 Nf8+ Kh8 Rb5 Kg8 Rb6 Nc3 b1B Qa2 Bf5 Nb1 Be6 Qgh2 Kc8 c7 Bc1 Qg1 Kb7 c8Q+ Ka7 Qc6 Kb8 Qb5 Kc7 Qbe2 Rh2 Qb5 Rd2 Qe2 Rd1 Qeh2
1n2N1R1/Rpp4K/2kp1B2/1bP4b/1Qpr1Qr1/1rR3nR/3P2Pn/2rN2q1 b - - 1 2 illegal: No proof kernel
1R4nK/2b2rn1/QpP4p/Q2qR1n1/3NBQp1/bPPbk3/NQ3p1b/1r6 b - - 0 1 illegal: No proof kernel
Kb1n2kn/p3p3/1q3RnR/2n2b1r/P2NNpR1/4P1r1/3p1QPB/1QbR4 b - - 1 2 legal: proof: f4 c5 h4 b5 d4 cxd4 h5 g5 fxg5 b4 a3 Qc7 e3 Qd6 Bc4 Qh2 Ba2 b3 h6 bxa2 Qf3 Qxh6 Qd1 Qh2 Kf2 h5 Kf3 d5 c4 f5 b4 Kf7 b5 d3 b6 f4 b7 d4 Ke4 h4 Kd5 h3 a4 d2 c5 d3 c6 Nh6 c7 Bf5 c8Q Bg7 Qb3 d1N Nc3 d2 Qc6 Be5 g6+ Kg8 g7 Nf7 Ne4 Nb2 Qbb5 Rh5 Nf3 Nc4 Nd4 Nh8 Qb1 Bd6 Qa6 Nc6 b8R+ Nd8 Bb2 Ne5 Qaf1 Neg6 Rb6 Bb8 Rf6 Qg3 Qg1 h2 Qf2 Qg5 Rd1 h1N Bc3 Qh6 Bb2 Ne6 Kc6 Ng3 Kb7 Nd8+ Ka6 Ne2 Rh1 Nc1 Rh3 Kh7 g8R Nb3 Rh1 Nh4 Rg4 N4g6 Qd3 Kg7 Rad1 a1B Qb1 Kg8 Bc3 Bb2 Rh2 Ne6 Kb7 Bc1 Ba1 Bd6 Rhh4 Re8 Rh3 Bb8 Ka8 Nbc5 Bb2 Nd8 Rh2 Rh3 Rhh1 Rg3 Rhh4 Qf8 Rh6 Qf7 Ba1 Qe6 Rhh4 Qb6 Nb5 Nhf7 Rd6 Rh3 Bf6 Kf8 Nd4 Rf3 Bg5 Kg7 Rh2 Rh8 Bh4 Kg8 Bg3 Rh6 Rh5 Nh8 Bh2 Rg3 Rf6 Rh7 Rhg5 Rh4 Rh5 Rhh3 Rh7 Rh5 Rh6
4nrnk/b1Q1Pn2/r2pK1b1/PB4B1/1b1Qbp1R/2q2Rp1/2BP1Np1/3B4 b - - 0 1 illegal: No possible last move
3K3n/2ppR1p1/kNbPPN2/1n3Q1B/1r2n1pq/N6b/r1PR1b2/Q4N1n b - - 1 2 legal: proof: g4 h5 b3 hxg4 f4 e6 f5 exf5 Bb2 b6 Be5 b5 Bg3 f4 a4 fxg3 axb5 Rh5 Bg2 Rh7 Bf1 Rh8 e4 f5 Ke2 a5 Ke3 a4 Kf4 g2 h4 a3 d4 a2 b6 Rh5 b4 Ra5 e5 Nf6 b7 Ra6 b5 Rh8 Kg5 f4 b6 f3 d5 f2 h5 Rg8 h6 Rh8 d6 Ra5 h7 Ra6 Kg6 Qe7 Ne2 Kd8 Rh2 g1N Na3 Nh3 Ng3 Nc6 b8Q Ra8 b7 Ne4 Bd3 f1B Rd2 Qh4 Kf7 Nhf2 e6 Bg2 Nf1 Bh3 Rb1 Rg8 h8N a1N Ng6 Nh1 Ne7 Nb3 Nd5 Ne7 Nf6 Nd4 Rb3 Nb5 Qa1 Ra6 Qa8 Rh8 b8N Ng6 Qd5 Bb7 Qf5 Kc8 Nc6 Be7 Na5 Bc6 N5c4 Kb7 Nb6 Rb8 Rb2 Bd8 Ke8 Nh8 Rb1 Ka7 Re1 Rb7 Ree2 Ra4 Rf2 Ka6 Rf4 Rb4 Rf3 Ra7 Rff2 Be7 Rf3 Bf8 Kd8 Be7+ Kc8 Qh5 Qg5 Qg6 Nfd5 Qh7 Rf7 Nf6 Bg6 Ne4 Qf5 Bh4 Nf6 Ka5 Re7 Bf2 Kd8 Qh4 Bh5 Ra6 Na4 Ra7 Nb1 Ra6 Nc5+ Kb6 Na4+ Ka7 Nb6 Ra2 Na3 Kb7 Ng3 Ka6 Nf1
q1knr2Q/p3rP2/3b3b/p3Qp1K/3RqPQ1/1n5p/1B2NQBP/1b1b2R1 b - - 0 2 legal: proof: d4 c5 a4 cxd4 e4 f5 a5 b6 e5 bxa5 Nc3 Qb6 Nd5 Qd8 Nf6+ gxf6 exf6 Qc7 Qg4 Qb6 Qd1 Qd8 Ke2 d5 Kf3 Kd7 g4 h5 b4 e5 c4 d3 b5 h4 f7 e4+ Kf4 d2 g5 d4 g6 e3 g7 e2 c5 e1B f3 d3 b6 h3 b7 Bg3+ Ke3 Nf6 g8Q Ne4 Qe2 d1Q Bb2 d2 Qg6 Qc2 Bg2 d1B Qf2 Nc6 b8Q Ba6 Ne2 Bd3 Ra4 Nd2 Rg1 Nb3 Qg4 Bh6+ Qbf4 Qc4 Rb4 Bb1 Ra4 Ne5 c6+ Kc7 Rb4 Rb8 Ra4 Rb7 Rb4 Qe8 Ra4 Kd8 c7+ Kd7 Rb4 Qa8 Ra4 Nc6 c8Q+ Ke7 Qf8+ Kd7 Qfg8 Qd5 Rd4 Nd8 Q8g7 Rf8 Qf6 Kc8 Qh8 Bg7 Qe4 Bd6 Qe5 Re7 Kf4 Rfe8 Kg5 Qe4 f4 Bh6+ Kh5
5r2/b6k/2p2pr1/1NQRbPQ1/4bB2/q3ppQn/1PNP3K/qbR1n1Q1 b - - 0 1 illegal: No proof kernel forced: bxDB
3B1n1N/1r1p1QB1/K1nbp2n/p1RP3p/6qP/2B5/brkQ1NP1/1n3Bq1 b - - 1 2 legal: proof: e4 b5 a4 g5 f4 f5 Ra3 c6 Rf3 fxe4 f5 c5 Rf4 gxf4 b4 cxb4 axb5 Ba6 Bb2 Bb7 Bc1 Bc8 Ke2 Kf7 c4 Kf6 d4 a5 h4 h5 b6 e3 Kd3 e6 b7 b3 d5 Ke5 c5 b2 Kc4 Ke4 Kb5 e2 f6 e1N c6 f3 c7 f2 f7 Nh6 Bg5 Bd6 f8B Nd3 Na3 b1N Bg7 Nc6 b8B Nde5 Nh3 Qg8 Bd8 Ra7 Qd2 Rb7+ Ka6 Ng6 Nc4 Nf8 Bc3 Qg6 Ne5 Qg4 Ng6 Rg8 Ba7 Rh8 Bad4 Rg8 Be2 f1Q Bg7 Qg1 Bf1 Rh8 Qf2 Rg8 Qf7 Ke3 Nf2 Rh8 Ba1 Kd2 Bac3+ Kc2 Rh3 Rg8 Nh8 Ra7+ Kb6 Ba6 c8Q Bc4 Qa6 Ba2 Qe2+ Kc1 Qe1+ Kc2 Rg3 Rb7+ Ka6 Ng6 Rd3 Re8 Rd4 Nf8 Rc4 Rb2 Rc5 Rb7 Bg5 Reb8 Bd8 Rb2 Qe3 R8b7 Qd2+
2qR1BB1/K1QB1b1p/p2q2p1/3B3r/1nP1pQnP/1R1bNb1P/8/2r2kb1 b - - 0 1 illegal: No possible last move, all moves rejected
2Q1Q2R/qN3nq1/rpn1p2N/Prp4b/pn4N1/3B1R1P/3KP2b/k1N3n1 b - - 0 1 illegal: No proof kernel
1bN2bk1/1b1BQ2b/1q1np3/2pr2B1/p2Qb1PK/2R1pQ1Q/1qP1PR2/6r1 b - - 0 1 legal: proof: g4 d5 h4 g5 a4 b5 Nc3 bxa4 Ne4 dxe4 Nh3 Na6 Ng1 Nc5 f4 gxf4 Nh3 Ne6 Ng1 Ng5 hxg5 Qd6 Rh2 Qd3 Rh1 Qd8 Kf2 f5 d4 Kf7 b4 a5 b5 c5 b6 h5 b7 h4 b8Q a3 d5 e6 d6 a4 d7 e3+ Kg2 a2 Kh3 f3 Qd4 f2 Qdb4 f4 Q4b7 f3 Qg3 Qb6 d8Q+ Ne7 g6+ Kg8 g7 Nf5 Qd4 Nd6 Qe7 Bb7 Bg2 f1B Rh2 f2 Qf3 Rd8 Bb2 Rh6 Rd1 a1B Rd3 Be4 Rc3 Bh7 Qff4 Rh5 Nf3 Rd5 Ne5 Rb8 Nc6 Rd8 Rh1 Rd7 Na7 Rb7 Kh2 h3 Kg3 h2 Kh4 Rd7 Bf3 Bg2 Rf1 h1B Nc8 Rb7 Be4 Bf3 Bd3 Bfe4 Bb5 Bhg2 Bd7 Rb8 Rg1 f1Q Qf3 Qb1 Rf1 Bh1 Ba3 Q1b2 Rf2 Qc7 Bb4 Rb5 Ba5 Qb6 Ra3 Rb3 Qh3 Rd3 Rc3 Rd1 Qf3 Rg1 Qh3 Q6b5 Bd8 Bhg2 Qe8 Qb6 Bg5 Bd3 Qf3 Ba6 Qe7 Bb7 Qh3 Bge4 Rf1 Nf7 Qb4 Qb3 Rc4 Be5 Rf2 Qb2 Rc3 Bb8 Qc4 Nd6 Qd4 Bhf5 Bf6 Kh7 g8Q+ Kh6 Qgf7 Bg6 Bg7+ Kh7 Qff3 Kg8 Bf6 Bh7 Bg5
B2N1Knn/2q1Q2Q/1Qp2p2/1p1r3b/qP2N1q1/3RPPRk/3p2rq/4Q2q b - - 0 1 illegal: No possible last move
1N1qRQR1/PRn2pb1/3p2b1/1B2p3/3RPNK1/q1pP1Q2/brq5/1k2nb2 b - - 0 1 legal: proof: c4 b5 b4 g5 f4 gxf4 Nh3 a5 Qc2 axb4 Qd1 b3 Ng1 b4 g4 h6 g5 Bb7 g6 Ra6 Bb2 Bc8 Bf6 Ra5 Bg5 Rb5 cxb5 hxg5 Kf2 c5 Kf3 e5 e4 Ke7 h4 Kd6 a4 b2 g7 g4+ Kg2 f3+ Kg3 f2 d3 b3 h5 c4 a5 Kc5 a6 Kd4 b6 d6 h6 Bf5 h7 Nh6 g8R Bg6 a7 Bg7 b7 Nf5+ Kg2 g3 Kh3 g2 Ra3 Na6 b8Q Nc7 Kg4 Nh4 Ra4 Nf3 Nd2 Kc3 Nh3 b1Q Nf4 b2 Nb3 Ne1 Qf3 Kc2 Na5 c3 Rd4 g1Q+ Bg2 f1B Nc6 Qe3 Bh3 Qec1 Qc8 Qa2 Nb8 b1B Re8 Rf8 h8R Qaa3 Rg8 Ba2 Rh2+ Kb1 Rb2+ Ka1 Rb7 Qcb2 Kg3 Kb1 Bd7 Qbb3 Bb5 Qc2 Rh8 Rg8 Kg4 Rf8 Rh1 Rh8 Rg1 Rh3 Qd7 Rh2 Qe7 Qd1 Qf8 Rb2 Rh1 Qdb3 Rh8 Qc2 Rg8
2b2NN1/3PnqQ1/p3pPpK/kpR3P1/R5Q1/6rN/2Np4/rnbBr1b1 b - - 0 1 illegal: No proof kernel
1Kb3r1/4kN1R/pP1N1QQN/1rp2pp1/1q2N1Pb/n1P2p2/1b2R3/n3n2B b - - 1 2 legal: proof: g4 h5 a4 b5 b3 h4 Bb2 d6 Be5 d5 e4 dxe4 f3 exf3 Bg3 hxg3 axb5 Rh5 Bh3 Rh6 Bf1 Rh8 h4 c5 d4 e5 Kd2 g5 Ke3 e4 h5 f6 c3 g2 d5 a6 b6 Nc6 d6 Nh6 b7 Nb8 b4 Rg8 d7+ Ke7 b5 Rg6 b6 Ke6 Qc2 Nf7 h6 Nd6 h7 Ke7 h8N Rg8 Ra2 Nc6 b8Q Na5 Nd2 Nb5 Nc4 Na3 Nh3 g1B+ Nf2 Nb3 Nd6 Na1 Nhf7 Rh8 Qd3 Rh2 Nh6 Qe8 d8N Qa4 Rb2 Qb4 Re2 Bg7 Qd4 f5 N8f7 Bf6 Bg2 Be5 Kd2 e3+ Kd3 Bf4 Nfe4 Bf2 Qf6+ Kf8 Qb7 Bh4 Qg6 Rb8 Qa8 Ke7 Qc6 Rh3 Rh2 Rg3 Bh1 Rg1 Rh3 Rb1 Rhh2 Be6 Rh3 Rg8 Rhh2 Bc8 Rh3 Qa5 Rhh2 Rb5 Rh3 Nb1 Kc4 Na3+ Kd5 Qa4 Nc4 Qb4 Qcf6+ Ke8 Kc6 Kf8 Re1 e2 Ncd6 Bc1 Kc7 Bb2 Kb8 Rg7 Rg1 e1N Rg2 Rg8 Re2 Bf2 Rh5 Rg7 Ng8 Bh4 Nb7 Ke8 Rh7 Kd7 Ngh6 Rg8 Qd4+ Ke8 Nbd6+ Ke7 Qdf6+
1qq1k3/1P2N1KQ/2RBppB1/3n2p1/b1n2PB1/p3PQ2/r1bp1r2/2B2R1r b - - 0 2 legal: proof: h4 c5 a4 b5 d4 bxa4 Nd2 cxd4 Ne4 e6 Ng5 h6 h5 Be7 g3 Bf6 Ne4 Bh4 Ng5 hxg5 gxh4 Qf6 Kd2 Qe7 Ke1 Qd8 Kd2 a5 Kd3 d5 b4 g4 f4 g5 c4 a3 b5 a2 c5 g3 c6 g2 c7 a4 h6 a3 e3 Nc6 h5 Rh7 b6 Bd7 c8B Rg7 b7 Qc7 h7 Nge7 h8B Rh7 h6 Na5 Nf3 g1Q Ne5 Ba4 Bh3 Nc4 Ng6 Qb8 Qf3 Qf2 Rb1 a1R Bg4 Ra2 Be5 Ra6 Rd1 Rb6 Rf1 Rbb2 Bd6 Qg1 Ra1 Rf2 Rb1 Rh8 h7 Qh2 Rb3 Qh6 Rb6 Qf8 Rc6 f6 Bd7+ Kd8 Be8 Qg8 Bf7 Kd7 Nh4 Qgc8 Bg6 Kd8 Be4 Ke8 Ng6 Rf8 h8Q Rg8 Qh7 Rh8 Qg7 Rh1 Qh7 Rfb2 Bh3 Bc2+ Ke2 d3+ Kf2 d2 Kg3 d1B Kg4 d4 Kh5 d3 Kh6 Nd5 Kg7 Ba4 Bg4 Rf2 Bef5 d2 Ne7 Bdc2 Bg6+
2q1r1n1/2qBB3/rnpb4/4pp1B/1B6/pQ1pRP1N/K1P1PNkq/5Qb1 b - - 1 3 legal: proof: d4 e5 h4 g5 a4 gxh4 d5 b5 Rh3 bxa4 Rh2 Qg5 Rh1 Qd8 b4 Ba6 g4 Bd3 Ra3 Bf5 Rg3 Be6 dxe6 hxg3 Kd2 Ke7 Kc3 Kf6 Kb2 h5 f3 d5 g5+ Kf5 b5 a5 g6 a3+ Kb3 c6 g7 h4 b6 h3 e7 h2 e8B a2 b7 a1Q Bg2 d4 Qf1 d3 Bd2 Ra6 Be1 Kf4 Bh3 g2 Nd2 Nd7 b8B Nb6 Ne4 Qc8 Bb4 Bd6 Bhd7 f5 Nf2 Kg3 Ngh3 g1B Bh5 Qe1 Bc7 a4+ Ka2 a3 Bd8 Qd2 Be7 Qh6 Qe1 Qh7 Qb1 Kg2 Qa1 Nh6 g8Q+ Qg7 Qf7 Re8 Qb3 Ng8 Ng4 Bd4 Ngf2 Qf7 Rb1 h1Q Rb2 Qh2 Qf1+ Kg3 Ng4 Bg1 Ngf2 Qg7 Qa4 Qf8 Ba5 Qc7 Rb4 Rea8 Re4 Qe8 Bb4 Rc8 Qd1 Kg2 Qb3 Rca8 Re3 Qeb8 Qd2 Qbb7 Qe1 Re8 Qeb1 Qbc8 Qf1+
2n5/pPqp1B1K/3rb1Pb/Q2RN2r/2qB1N1p/PpB3p1/4bn1k/1B5Q b - - 0 1 illegal: No proof kernel
2QqNnr1/1n2p2Q/Q2R4/N2Rr2p/k4p1K/q1p3PP/1Qb1Pp1b/4n2B b - - 1 2 legal: proof: c4 a5 f4 d5 a4 dxc4 b4 g5 b5 gxf4 Ba3 b6 Bb4 axb4 a5 Ra6 axb6 Ra8 Kf2 Kd7 d4 f5 d5 c5 d6 h5 h3 b3 b7 c3 b6 Kc6 d7 Kb5 Ra7 b2 Qd3+ c4 Ra1 f3 Kg3 c2 Nd2 c1Q Ne4 b1N Kh4 f2 Nf6 Nc6 b8Q Na5 b7 Na3 Qbd6 Ka4 b8Q c3 Ne8 Bh6 Qb2 Nf6 Q6a6 Rg8 Nf3 Bf4 Ne5 Nh7 Nc6 Bh2 g3 f4 Bg2 Nf8 Rd1 Rb8 Bh1 Rb5 Qg6 Re5 Rd5 Bb7 Rb1 Nc2 Qh7 Ne1 Rd6 Qe3 Rc1 Qc5 Rcd1 Qa3 R1d5 Bc8 Qab6 Nb7 Qa6+ Qa5 d8Q Bf5 Qc8 Bc2 Qab6 Qa8 Na5 Qb8 Qa6 Qc7 Rc5 Qd8 Rcd5
1k1b1r1b/R1pR3K/1bp3Qn/3p4/3PQpN1/P1P1NR2/q2bB1p1/1n1r2R1 b - - 1 2 illegal: No proof kernel
4k1b1/1KBpn2R/1npP4/b1p3q1/2rN1NQ1/3R3p/1qP2Pp1/RRQ3nb b - - 0 1 illegal: No proof kernel
B6R/1Rp1Q3/1QR1Nn1n/b7/r3pp2/RpqpNP2/rqPP4/1k1K2nn b - - 1 3 legal: proof: e4 d5 h4 a5 b4 axb4 a4 g5 Bc4 gxh4 Ba6 d4 Ba3 Be6 Bf1 Bd5 exd5 bxa3 g4 Kd7 d6 Kc6 f3 Kc5 d7 Kb4 a5 h5 g5 b5 a6 e5 a7 f5 g6 f4 g7 d3 Bg2 a2 Ne2 e4 Qc1 h3 Rh2 h4 Rh1 h2 Nbc3 h3 Bf1 Qf6 d8Q Nd7 Nb1 Qc3 Nd4 Be7 Rg1 Nh6 g8R Bc5 R1g4 Bb6 R4g6 Ka4 Qe7 b4 Rf8 b3 Rb8 Rg8 Rd6 Nf6 Na3 Rg5 Nc4 Ra5 Qd1 Ra6 Qe2 Kb4 Qf2 Ra3 Rb1 a1Q Kd1 Qab2 Ra1 Ra5 Qg1 Ra6 Qg4 Ra3 Qge6 Ra6 Ne3 Ra5 Rb1 Ka3 Bg2 Ka2 Bf1 Qa3 Ra1+ Kb2 Ra2+ Kb1 Rh8 Qab2 Ra4 h1N Rb4 h2 Bh3 Ng3 Bf5 Re8 a8R Ra2 Ra3 h1N Bh7 Ngf5 Bg8 Nfg3 Bf7 Rf8 Be8 Ne2 Bc6 Rb8 Ba8 Ba5 Rb5 Rd8 Rb7 Ng1 Ra6 Rd7 Qc6 Rd6 Ne6 Rd4 Qcc5 Rb4 Rc6 Ra4 Qb6
2B3R1/1KQn2bp/1B6/1r1p2rB/QpbpRPq1/1P4k1/p5rP/r1Nq3B b - - 0 1 illegal: Other
Rnb1Q3/3npr2/4nB1b/n1qp2N1/B1k1P3/n2q1Q1p/B2Pr2P/N1n2K1B b - - 0 1 legal: proof: b4 c5 a4 cxb4 g4 f5 Na3 fxg4 Nb1 a6 Ra3 a5 Rd3 b3 Rd4 Qc7 Rf4 Qd8 Rb4 axb4 f4 Kf7 c4 Ke6 c5 Kd5 a5 h5 e3 b5 a6 g5 c6 g3 a7 g2 c7 h4 f5 g4 f6 b2 f7 h3 Qe2 b3 Qd1 g3 Qg4 b4 Bb5 Rh7 Qg7 Nf6 Qg6 Bh6 f8Q Rf7 Ne2 g1N Bc6+ Kc4 e4 d5 Be8 g2 Qgg8 Qd6 Nd4 Nfd7 Nf3 Ne2 Ng5 g1N Qg6 Rf2 Qf3 Nd4 Qg8 Qb6 Bh5 Ne6 Qe8 Re2+ Kf1 Qc5 Na3+ Kd4 Qf5 b1Q Bf3 b2 Nc2+ Kc4 Na1 b3 Bg2 Qd3 Qf3 b1N Bb2 Na3 Bf6 Bb7 c8B b2 Nb3 b1N Na1 Ne5 Bd7 Bc8 Ba4 Ned7 Bd1 Kb4 Ba4 Nc4 Bb3 Na5 Ba2 Na3 Qd8 Nbc6 Qe8 Rb8 a8B Kb5 Nb3 Kc4 Na1+ Rb3 Bb7 Ncb8 Bc6 Re3+ Kf2 Ne2 Ba4 Nc1 Rg1 Re2+ Kf1 Nd4 Bb1 Rb6 Bh1 Re6 Rg2 Re5 Rg4 Rf5 Rh4 Ne6 Rh5 Bg7 Rh8 Bh6 Ba2+ Nab3 Qf7 Ba6 Rd8 Nc6 Ra8 Ncb8 Qg6 Bc8 Bc3 Rf4 Qe8 Rf7 Bb1 Na5 Bf6 Qc2 Ba2+ Qb3 Bb1 Qd3 Ba2+
N1qnn3/R1bb1q2/Q4p1q/R1Qp1QN1/Q2K1Pn1/p2n3k/PB1Pr1p1/r7 b - - 0 1 legal: proof: f4 e5 c4 h5 g4 hxg4 c5 e4 c6 bxc6 Bh3 c5 Bg2 c4 Bf3 exf3 Kf2 Ke7 Ke3 Kf6 b4 Kf5 h4 a5 b5 d5 h5 c5 h6 g5 b6 f2 h7 f1N+ Kf2 c3 e3 c4 b7 a4 Na3 c2 Qe2 c3 Nh3 g3+ Kf3 g4+ Kg2 Qf6 Qf3 Nc6 b8Q Nd8 Nf2 Qh6 Qb1 Nf6 Qe2 Ne8 Nh3 f6 Bb2 Nh2 Nc4 a3 Nb6 Bd6 Ng5 Bd7 Qa6 Bc7 Rc1 Rg8 h8Q Ra7 Kg1 g2 Kf2 g1Q+ Ke2 g3 Kd3 Kg4 e4 g2 e5 Rb7 Na8 Qa7 e6 Rb8 Re1 c1Q e7 c2 Qh7 Kh4 Qf5 Ng4 Re6 Rb6 Kd4 Qb7 Re1 Rh8 Re3 Re6 Rc3 Re2 Rc5 Qc8 Ra5 Qh1 Qg1 c1N Qe3 Nd3 Re1 Qf8 Rc1 Qf7 Qg1 Qh3 Rc4 Kg3 Rca4 Qh6 Qc1 Qhg6 Qc2 Rh1 Qcc6 Qh6 Qc5 Ng7 e8Q Ra1 Rb4 Kh4 Rb7 Kg3 Qee4 Ne8 Ra7 Kh2 Qee6 Kg3 Qec6 Kh4 Qa4 Kg3 Nh7 Kh3 Ng5+
qb6/2p2kpn/3npb2/bpKQP2Q/1r2R1P1/1P3b2/BB1b1BB1/rNN1b3 b - - 0 1 illegal: No proof kernel
2r1b1R1/2Qnn1Qp/1p2n1Q1/B1kp1bNP/2q1pp2/b2P1PN1/1n1K2Q1/4r1R1 b - - 0 1 illegal: No proof kernel
2q1N3/2Q1R1r1/4pqpn/1r1pn3/kBBQ2Pp/1pb1Pp2/rQ1P2Q1/3b1KR1 b - - 0 1 illegal: No proof kernel
3qR1nr/NrBR1R2/RrR5/1pK2PnB/3r2P1/2bP1r2/N5b1/2kb3q b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 h5 g4 g5 Qf3 gxf4 Qc3 h4 Qg3 hxg3 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 a4 e5 d6 c5 h5 b5+ Kb3 c4+ Kb2 g2 a5 f3 d7 b3 Kc3 f2 a6 b2 h6 Nc6 h7 Bg7 a7 Nd4 Kb4 c3 Bc4 f1R Bd5+ Kd3 Rh4 Kc2 d3 e4 Rh1 e3 Kc5 e2 Bf7 e1R Nf3 g1Q Ra6 Rb8 a8R Bb7 Rc6 Re4 Ne5 Rf3 Bf4 Qf1 Bg3 Kc1 Na3 b1B Raa6 Bc2 Bh5 Bd1 Nc2 Qh3 Re1 Qh1 Nb4 c2 Re2 Ba8 Bh2 Rb7 Re3 Qe8 d8R Ref4 Rd7 Qd8 Rcb6 Re4 Nec6 Be5 Na7 Ne6+ Kd5 Ref4 Rc6 Ng5 Kc5 Bc3 Re8 Rd4 Bb8 Kb1 Ree7 c1R Rf7 Rc2 Bc7 Re2 Rg6 Re6 Rgf6 Reb6 Rc6 Nf6 Rde7 Kc1 Rd7 Rg8 h8R Re8 Rh6 Rh8 Rg6 Ng8 Rge6 Nf6 Re1 Ng8 Re8 Rff4 Bd6 Rb8 Rc8 Bg2 Rc6 Rf3 Bc7 R8b7 Na2+
1B1RB2n/BbbrP3/1pq5/b2Pn3/2nk3n/1P1N1qr1/5b1K/R1B1BN2 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b6 a4 b5 Qb3 bxa4 Qb6 axb6 Kf2 Kd7 Kg2 Kd6 e4 Kc5 h4 g5 d6 f5 e5 f3+ Kh2 f2 e6 f4 d7 f3 d3 a3 b3 a2 h6 g4 h5 g3+ Kh3 g2 h7 Bb7 h6 Nc6 Ba3+ Kd4 Bb4 Nge7 Na3 Qe8 d8B Ng6 Rb1 a1B Bbe7 Nce5 Nc4 c5 Rd1 Ra7 Bc7 Rg8 h8B Qc6 h7 Bc3 Nb2 c4 Kh2 Ba5 Ba3 c3 Bb8 Bd6 e7 c2 Bf6 c1N h8B Ne2 Bh4 Nef4 Be2 f1Q Be1 f2 Bh5 Nh4 Be8 Nfg6 Ne2+ Ke3 d4 Bc7 Bg7 Nh8 Nd3 Ke4 Bh6 Rg3 Bhc1 Kd5 Bd6 Ke4 Ng1 Qe2 Nf3 f1N+ Kg1 Kd5 Nh2 Ne3 Nf1 Qf3 Kh2 N3c4 Rg1 Ke4 d5 Kd4 Rh1 Ra8 Ba7 Rd8 Rg1 Rd7 Rh1 Bd8 Bdb8 Bc7 Nd2 Qe2 Rf1 Qg4 Rf8 Qf5 Nf1 g1B+ Kh1 Bf2 Kh2 Ke4 Bh6 Qf3 Ra1 Kd4 Bc1 Rg5 Bh5 Rg4 Rd8 Rg3 Be8
3b1B2/p4n2/1R1NBq2/2RP1pqb/K2kq2p/R2p4/2rPP2R/qb2N1R1 b - - 0 1 legal: proof: c4 d5 g4 b5 f4 g5 a4 gxf4 h4 bxa4 g5 e5 Qb3 d4 Qc2 Na6 Qg6 Nb4 Qg7 Nd5 cxd5 Rb8 Qh6 Rb6 h5 Rg6 hxg6 e4 Qh5 Bh3 Qf3 exf3 Rh2 Bf5 Rh1 Bc8 Kd1 Kd7 Kc2 Kd6 b4 Ke5 g7 c5 b5 h5 g6 f2 b6 a3 Kb3 f3 b7 a2 b8R h4 Rh3 c4+ Ka4 c3 Rb3 c2 Bg2 f1Q Rb5 f2 Rbb3 Bg4 Rbg3 Nh6 g8R Qg5 g7 Be7 Rb3 Bh5 Rb7 Bd8 Ba3 c1Q Nc3 Qb1 Rb6 Qe4 Nb5 f6 Bf8 Nf7 Rc1 a1Q+ Ra3 Rh6 Bf3 f5 Rc5 Rc6 Nd6 Qfc1 Bg4 f1B Bf3 Qcb2 Bg4 Bg2 Nf3+ Kf4 Ne1 Ke5 Bf3 Qee3 Bg4 Be4 Bf3 Bb1 Bg4 d3 Bf3 Bg6 Bh5 Bh7 Bg6 Kd4 Bh5 Qe4 Bg6 Nh8 Bf7 Bg6 Be6 Nf7 Rh8 Qc3 g8R Rc7 Rh6 Bh5 Rhg6 Qf6 Rg2 Qg5 Rh2 Qcb2 Rcb5 Rc2 Rc5 Qe7 Rg1 Qg5 Rb7 Qb6 Ne8 Qd6 Rb6 Qde5 Nd6 Qh8 Ne8 Qhf6 Nd6
4k3/q1b2p1R/r4P2/PrN2PNp/1r1Bb2K/3n1rB1/bB2RqB1/nB3r2 b - - 0 1 illegal: No proof kernel
1R4r1/RbN1Bp1k/1bPK4/N2np2N/N2PqP2/2r2NnB/1r2q1nq/5n2 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 g5 Qg4 gxh4 axb5 Bg7 b6 Bh6 b5 Bf8 Qf4 dxe4 Qd6 Nc6 Qd4 Nb8 Qb4 cxb4 Ke2 e5 Ke3 h5 g4 a5 f4 h3 c4 h4 d4 h2 c5 b3 g5 h3 c6 a4 g6 b2 g7 a3 b7 a2 b6 Qh4 Na3 b1R Bd3 Nf6 g8N Na6 b8N Nc7 b7 Rb2 Bb1 Bc5 Nh6 Kf8 Nc2 Kg7 Na6 Bb6 b8N Kh7 Nc5 Nh5 Ng8 Bb7 Nf3 Ng3 Rf1 h1Q Na3 h2 Nc4 Ra3+ Bd3 Rab3 Na4 Rc3 Na5 Qg4 Rb1 a1N Na6 Nb3 Rg1 Nd2 Nf6+ Kg6 Nh5 Rg8 Ra1 Kh7 Ra3 Qg2 Rb3 h1Q Re1 Rb1 Ba3 Rb2 Ra1 Q2h3 Be7 Nd5+ Kf2 Qb1 Nc7 Ndf1+ Be2 Qhh4 Kg2 e3 Ra2 Nd2 Bf1 e2 Kf2 e1N Bh3 Ng2 Rb4 Ba7 Rb3 Qe4 Rb5 Bc8 Rb8 Ndf1+ Nd2 Ra3 Nb7 Nb4 Nac5 Qd1 Be6 Qh2 Bh3 Rd3 Ra5 Bb6 Na4 Ra3 Ra7 Qg6 Na5 Rab3 Nb7 Rc3 Na5 Nc2 Nf3 Nce3+ Nd2 Qe1+ Kf3 Bb7 Nab3 Ngf5 Ke4 Qe2 Na5 Ng4+ Kd5 N5g3 Rba8 Qge4+ Kd6 Nf6 Nf3 Nd5 Rb8
2K1B1R1/qp2b2R/rP2RP2/P3rpN1/1B2Rr1n/nR1kq3/2N1nnb1/r7 b - - 0 1 illegal: No proof kernel
1q4RB/p1r2P1R/7K/rnR2bNN/b4kPb/rn2p2R/p3P1BR/1n1b4 b - - 0 1 legal: proof: g4 b5 h4 g5 a4 bxa4 c4 gxh4 Qb3 f5 Qh3 d5 cxd5 f4 Qg3 fxg3 f4 Kf7 b4 Kg6 d4 c5 Kd2 e5 Ke3 h5 f5+ Kg5 f6 g2 d6 e4 d5 c4 f7 h3 b5 h2 b6 c3 d7 a3 d6 a2 b7 h4 Ba3 c2 Bb2 c1N Be5 h3 Bb2 Rh5 Bd4 Nf6 Bb6 Nc6 b8R Nd4 Bc5 Nb5 Na3 Be7 Nc2 Nb3 Rc1 Qb6 d8R Bf5 Rbc8 Qb8 Rh8 Bd8 d7 Nd5+ Kf2 e3+ Kf3 Ndc3 Ne1 Nb1 Rh7 Bc2 Bd4 Bd1 Ke4 Bf6 d8R Be7 Kd5 Kf4+ Ke6 Bh4 Ngf3 g1R Bg2 Rg5 Kf6 Rf1 Rg1 h1B Rdh8 h2 Rcg8 Rc5+ Kg6 Rc3 Ng5 Rc7 Bc6 Be4+ Kh6 h1B Rg3 Bf5 Rh3 Bd5 Bb7 Bc6 Rc5 N5a3 Ra5 Qd8 Rb5 Na1 Rc5 Bc8 Rb5 Bf2 Bc3 Rb8 Rd5 Bca4 Ba8 Rb3 Rh1 Kg3 Rhg7 Rb2 Kg6 Rb3 R1h2 Bcd7 Rb5 Qb8 Ng2 Be1 Bb2 Rf5 Nf4 Rfc5 R8h5 Bf5+ Kh6 Rbc3 Bg2 Rd3 Rb3 Ra5 Rh7 Nb5 Bh8 Rdc3 Rb4 Ra3 Rc4 Nb3 Rc5 Bf2 Nfe6 Be1 Ng7 Kf4 R5h3 Bh4 Nh5+
b7/R5p1/B1p2qP1/N2qbRBP/1nn2NKP/pb5N/N1qk1qN1/2r1r3 b - - 0 1 illegal: Other
R7/Kn1kbNpP/ppb2B2/5bPR/1rNrrN1n/5q1p/Pp2B2N/1N6 b - - 0 2 illegal: No proof kernel
rN3kRq/2Bnpp2/p2p1rb1/2b1N2N/PN1N1P2/2p5/3qPR2/KBb4n b - - 1 3 legal: proof: g4 h5 b4 c5 bxc5 hxg4 Nf3 b6 Ng1 b5 c4 Rh3 c6 Re3 c5 Rh3 Qc2 Rh8 Qc4 bxc4 Bh3 Na6 Kf1 Qa5 Kg2 Qxd2 Kg3 Bb7 Bf1 Bc8 Kg2 Nb8 h4 g5 a4 c3 h5 g3 Kf3 g4+ Ke4 a6 c7 g2 c6 g3 h6 Qb2 Kd3 Bb7 c8N Qa3 Kc2 Ra7 h7 Nf6 c7 Rg8 h8N Bh6 Nd6+ Kf8 c8N Ra8 Nf5 Rg7 Nf3 g1B N3d4 g2 Ng6+ Ke8 Nb6 Qd6 Ng3 Rh7 Rh2 Be3 Na3 Ng8 Kb1 Nf6 Nh5 Rh6 Ne5 Ng4 Nac2 Kf8 Nb4 Rf6 f4 Bd2 Ba3 Bc1 Ka2 Bge3 Kb1 g1Q Bh3 Bc8 Rf2 Qh1 Bg2 Bb7 Be4 Bd5 Bh7 Be4+ Ka2 Bd3 Rb1 Bg6 Ka1 Bcd2 Rg1 Bc1 N6d5 Qh2 Nbc6 Qh4 Ndb4 Qh1 Nb3 Bc5 Rgg2 Qd2 Nbd4 Nh6 Rg3 Nf5 Rg4 Ng3 Rg5 Bd3 Rg7 Qh3 Bg6 Nh1 Bf5 Bc4 Bb1 Bd3 Na2 Be4 Bb4 d6 Ba5 Nd7 Bc7 Bh7 Nb8 Bg6 Nb4 Qh2 Ng3 Qh7 Nh5 Qh8 Rg8+
bK3R1B/PR1r1p2/2k3qP/1br5/Rqq1N3/1B1B2p1/2N2BPb/1r5r b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 b4 a5 a4 axb4 Qc2 Qd6 Qb3 Qd8 h4 Na6 Qg3 Nc5 Qa3 bxa3 Rh3 Ne4 Rh1 Ng5 hxg5 Qd6 Nf3 Qe7 Ng1 Qd8 Nf3 h5 Ng1 Nh6 gxh6 Bc5 Nf3 Bb4 Ng1 Bf8 Kf2 Kd7 Kf3 b5 Ke4 g5 Ke5 c5 e4 c4 d4 c3 a5 c2 d6 b4 a6 g4 d5 a2 a7 b3 Bb2 c1Q Na3 h4 Bd3 f3 Nh3 f2 Nc2 f1B Ng5 h3 Bd4 h2 Bf2 b2 Rb1 Ke8 d7+ Ke7 Ra1 Qb6 d8B+ Kd7 d6 b1R Bf6 Kc6 d7 Bb7 d8R Qb4 Rb8 Bc5 Rf8 g3 Bg7 Rg8 Bh8 Rc8 Rg1 Ba8 Rh1 Kb7 Kd5 Bd4 e5 Rc5+ Kd6 Kb6 Rg1 h1R Ne4 Qg5 e6 Qg6 Kd7 Kb7 Kd8 Kc6 Kc8 Be3 e7 Bd4 Ba6 Bb5 Kb8 Qc4 Rd1 Be3 Rd7 Bd4 Be1 Bg1 e8B Bh2 Bf2 Rb2 Rad1 a1Q R1d4 Qb4 Rc4 Rbb1 Rcd4 Qaa3 Rc4 Qa2 Rb7+ Kd5 Bd7 Qaa4 Be6+ Kc6 Rc3 Qc4 Ra3 Qab4 Ra4 Qd4 Bb3 Qdc4 Rd8 Re8 Nc3 Re7 Rf8 Qh4 Ne4 Rd7 Ra3 Ba4 Bac4 Bb5 Bd3 Qhg4 Ra4 Q4e6 Kc8 Qec4 Kb8
1n2R1nb/r1BBr3/q3PRnk/1P3N2/Nr6/P1nnR2b/n3R3/b2N2K1 b - - 0 1 legal: proof: f4 d5 g4 e5 b4 exf4 c4 h5 cxd5 b6 gxh5 Bc5 a3 Be7 Qc2 Bf8 Qc5 bxc5 b5 a5 Ra2 Bh3 Rb2 Bc8 Rb4 axb4 Kf2 f5 d4 Kf7 e4 g5 h4 Kg7 e5 c4 d6 c5 d7 g4 d5 b3 d6 f3 Bd3 b2 Nh3 g3+ Kf1 c3 Bg5 f2 Kg2 f1N Ng1 c4 Rh3 c2 Bf6+ Kh6 Nf3 c1N Be2 f4 Kg1 c3 Nd4 g2 Re3 c2 Bg4 f3 Nc3 b1N Nd1 Qa5 d8R Rh7 d7 Na2 Re8 c1N d8N Raa7 Nb7 Qa6 Bd8 Nfd2 Bd7 Bg7 Bc7 Nd3 Nc5 Nc4 Na4 Bh8 Rf8 Re7 Nf5+ Kh7 h6 Nbc3 h5 f2+ Kh2 f1R Rf6 Rf4 Kg1 Bb7 e6 Nce5 Re4 Ng6 Re2 Bf3 Re3 Bg4 Re2 Bh3 Re3 Rf7 Re2 N8e7 Re3 Rb4 Re2 Kg8 h7+ Kf8 h6 Ng8 Kh2 g1B+ Kh1 Bg7 h8R Bd4 Rh7 Be5 Kg1 Bh8 Rg7 Ne4 h7 Ba1 Re3 Nec3 Re2 Ngf4 Rg3 Ng6 Nd6 Kg7 Rge3 Kh6 Nf5+ Kh5 Rf2 Re7 Rfe2 Bg7 h8R+ Kg5 Rh7 Bh8 Rhf7 Kh5 Rf8 Kg5 Re8 Kh5 Nd4 Kh6 Nf5+
2nRq1B1/2r2k1n/2P2B2/1r1nrP2/2BRN1b1/rR1r2BN/5P1n/2q3bK b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 Qd2 cxd4 axb5 Nc6 b6 Nb8 b5 Ra7 Qc3 Ra8 Qb4 axb4 g4 h5 c4 d5 g5 e5 b7 e4 b6 b3 g6 d3 c5 b2 c6 d4 g7 e3 Be2 d2+ Kf1 d1N Kg2 d3 Nd2 b1R Ra2 h3+ Kh2 h4 Ba3 Nc3 Nf1 d2 Bb2 d1R Bg4 e2 Nd2 e1R Ngf3 Bd6+ Ne5 Nd5 Nf3 Nge7 Ra3 Rd3 Ra6 Nd7 b8R N7f6 b7 Nh7 Ba3 Rb5 Rf1 Ra7 Kg1 h2+ Kg2 h1N Bc5 h3+ Kg1 Ng3 Nf7 Re5 Rb1 Nf1 Bd4 h2+ Kh1 Be6 Rb4 Nc8 N7g5 Bf7 Raa4 Bh5 Ne4 Kf7 Ng1 Qe8 Be2 Bg4 Rb3 Rf8 Rc4 Ra3 Nh3 Na7 Rbb4 Re7 Rc1 Rdc3 Rd1 Qd7 Rb2 Rc8 Ra8 Rc7 Rd8 Nc8 Bf6 Qe8 Rd4 Bg3 Kg2 Re5 Bc4 Rd3 Rb1 Nd2 Ng1 Nf3 Rb3 h1Q+ Kf1 Qh4 Kg2 Qg5 Kh1 Bh2 Nh3 Bg1 Rb1 Qc1 Rb2 Re6 Rb3 Nh2 b8B Rd7 Bf4 Rc7 Bg3 Re5 g8B+
8/3bR2N/qB1R1B1q/3NPP1n/1p1K2Rq/1P1B1r2/n2Rbr2/1qr1n1k1 b - - 0 1 legal: proof: h4 d5 d4 g5 a4 gxh4 e4 e5 a5 b5 c4 Bc5 cxd5 Bb6 axb6 exd4 e5 f6 Qe2 f5 Qe4 fxe4 Kd2 Ke7 g4 c5 f4 h5 g5 a5 b7 e3+ Kd3 c4+ Ke4 e2 g6 e1N g7 d3 b3 h3 d6+ Ke6 d7 a4 Nc3 d2 Rb1 d1B Nge2 h2 Rb2 h4 Bd2 a3 Bc1 h3 Bd2 a2 Rb1 a1Q Na2 c3 Kd4 Kf5 Rc1 Kg4 f5 Kf3 Bg5 Kf2 Ke4 c2 Bd2 Na6 b8R Qh4+ Nf4 Be2 d8B Nb4 Rb6 Bd7 Nc3 Qa6 Kd4 Na2 Nd5 b4 Rd6 Nf6 g8R Nh5 Rd1 c1R Bb6 Rd8 Rhg1 h1Q Re8 h2 Rg4 Qg1 Ng6 h1Q Bg5 Rdc8 Rf8 R8c3 Bf6 Rf3 Rf7 Rhc8 Rd2 R8c2 Re7 Qgh2 Re4 Kg1 Nf8 Q2f4 Nh7 Qh6 Nf4 Rcc3 Nd5 Rf2 Rf4 Rcf3 Re4 Qg2 Rf4 Qg8 Re4 Qgc8 Rf4 Qc2 Re4 Qb1 Rf4 Bd1 Bd3 Be2 Rg4+
1KR5/r3N1q1/k2BBr2/1PP2p2/P2n2BR/2NB2r1/2r1b1bb/bRb1n3 b - - 0 1 illegal: No possible last move, all moves rejected
r1NB1q2/3P1Bn1/RRq1Rnnk/5Pn1/1Bq3Np/3Pr3/5n2/1b1R2Kn b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 gxh4 e5 Bg7 c3 f6 Qb3 fxe5 Qb4 e4 Qc4 Bd4 cxd4 dxc4 g4 Kf8 b4 Kg7 f4 c5 Kf2 e5 b6 h5 g5 a5 b7 a4 d5 a3 g6 h3 b5 h2 b6 c3 d6 c2 Bh3 e3+ Kg2 h4 Bd7 c4 Bb5 e2 Be8 e1N+ Kf1 a2 Nh3 c3 Bd7 e4 Bb2 c1Q Nf2 e3 Bf5 Ne7 Na3 Kh6 g7 c2 g8R Qf8 Rg2 Ng6 Be6 Nd7 b8B Nf6 Bf7 Bf5 d7 Rh7 Rhg1 h1N b7 Be4 f5 Nd3+ Nd1 Ndf2 Nb5 Rh8 Bd6 Re8 b8R e2+ Ke1 Bd3 Bb4 Re3 Nd6 Be4 Rb6 Bd3 Rb1 a1N Nc8 Nb3 Ra1 Nd4 Raa6 Ne6 Be5 Ng7 Bc7 Qa3 Rg5 c1Q Bd8 Bb1 d3 Qa4 R5g4 Qc4 Re4 Qac6 Re6 Re5 Ne3 Rg8 Kd2 e1N Ke2 Nf3 Rd1 Ng5 Kf1 Rh8 Kg1 Rg8 Nf1 Re3 Nh2 Qfd6 Ng4+ Kh7 Ne7 Rh8 Bc7 Ra8 Nc8 Qf8 Nh2 Kh6 Bd8 Qf3 Rec6 Qfe4 Re6 Qec6 Ng4+
nn1r1b2/1P4k1/1nr3Np/1q1B3B/b2bR3/1Br1P2K/2pq1P2/R1BRN3 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 h4 gxh4 e3 d5 d4 dxc4 Kd2 f5 Kc2 f4 dxe5 f3 Qe2 fxe2 g4 Kf7 b4 e1N+ Kc3 a5 g5 c5 g6+ Kg7 e6 h3 b6 a4 b7 h6 b5 a3 e7 a2 e8B h2 b6 Nf6 Ba4 Nc2 Bb2 Ra6 Ne2 Nb4 Bc2 Nbd5+ Kd2 c3+ Ke1 c4 Nd2 Nc7 Nf3 Bd7 Bb3 c2 Bc1 c3 Nf4 Ba4 Be2 Qd2+ Kf1 Nfd7 Kg2 Na8 Rd1 h1Q+ Kg3 Qf1 Ne1 Rg8 Bh5 Qb5 Kh3 Rh8 Ba3 c1R Bd5 Nc6 b8R Rc2 b7 Ndb6 Re8 Nb8 Re4 Rc1 Rb1 a1B Bb3 c2 Bd5 Bd4 Ra1 Rb1 Bc1 Rb2 Bb3 Ra2 Bd5 Ra3 Bb3 Rg8 Bd5 Rc3 Bb3 Kf6 g7 Rh8 g8B Kg7 Bge6 Bb4 Nfd3 Rd8 Nf4 Bf8 Bg8 Nc4 Bd5 Rc6 Ng6 Ncb6 Kh2 Qc5 Kg3 Qb5 Kh3
KBR3B1/n2b2B1/rPN5/1q3B1P/bPp2bn1/8/1bNb1RNp/q5rk b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 d5 f4 exf4 c4 h6 Qb3 h5 g4 hxg4 Qh3 gxh3 cxd5 Qf6 Nc3 Qe7 Nb1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 g5 b4 f5+ Kf3 a5 e4 a4 b6 a3 h5 a2 Na3 h2 Bh3 g4+ Kg2 g3 Kf3 g2 Be3 Nf6 Rc1 a1B Ne2 g1B Nc2 Bd7 Bf2 Qe8 Bg3 Be3 Rhf1 Nc6 Rf2 Rg8 Bg4 Bd2 e5+ Ke7 d6+ Ke6 Bh3 Kd5 e6 Bh6 e7 Na7 Bg4 Ba4 d7 Bb2 d8B Qb5 e8B Rg6 Bh3 Ng4 Bf6 Bg5 Bg7 Bh6 Kg2 Ke4 d5 Bg5 d6 f3+ Kh1 f4 d7 Bh6 d8N Rg5 Bf7 c4 Bg8 Rg6 Nc6 Rg5 Re1 Rg6 Rg2 f2 Rd1 f1B Rf2 f3 Nf4 Bg5 Ng2 Bge3 Bb8 Bf4 Ra1 Bd3 Ra3 Be2 Rd3 Bf1 Rd8 Bd3 Rf1 f2 Re8+ Kf3 Rc8 Nf6 Bhe6 Bf5 Bd7 Bh3 Bf5 Ng4 Nge3 Nf6 Bg4+ Kg3 Ne7 Nc6 Bd7 Bg4 Bde6 Kh4 Kg2 Ra6 Bd7 Bh3+ Kf3 Rg1 Bg4 Na7 B4e6 Nd7 Ke4 Ne5 Bd7 Kg3 Bg4 Qe8 Kd5 Qb5+ Kd6 Bd4 Kc7 Bb2 Bd7 Bf5 Kb7 Ng4 Ka8 Be6 Rb1 f1Q Nc6 Kf2 Re1 Kg3 Re2 Qa1 Rf2 Bf5 Be8 Bd7 Bg6 Kh3 Bf5 Kg3 Rf1 Kh3 Nd1 Kg2 Nde3+ Kh1 Ng2 Qd5 Rf3 Qb5 Rf2
r3b3/B1qkr1P1/p2n1b2/BB2n1NN/1rq1P2K/3R1R1P/1n2n1p1/R5B1 b - - 0 1 illegal: No possible last move, all moves rejected
1N2q1q1/Pn2PqpR/pR2N3/b1n4B/2b1B1rB/k1P5/1b4rR/1b3R1K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 fxe5 c5 d4 cxd4 a6 Qe7 a7 Na6 Qd3 Qf6 Qd1 Qd8 a4 d6 a5 Bd7 Qd3 Nb4 a6 Rh7 Qb5 Rb8 a8B Rc8 Qb6 Be6 a7 Rb8 Qa6 bxa6 Kd1 Rc8 Kd2 Rc3 Ke1 Rch3 Bb2 Rh8 Bc1 R3h7 Kf2 Ke7 Kg2 f5 h4 g3 e4 d5 h5 f4 h6 d3 Nd2 d4 Ra2 Nf6 Nb3 d2 Bc6 d1B Ba3 d3 Bb2 d2 Ba4 Nd3 Nc5 Nd7 Bb3 Qe8 Rh4 f3+ Kh1 f2 Be2 f1Q Rh2 Qff7 Bh5 Bc4 e6 Kd6 e7 Bg4 Nf3 Bf5 Ne6 N3c5 Ra3 Nb7 Ra1 Ndc5 Rf1 d1Q Bf6 Qd5 e5+ Kc6 c3 Kb5 Bg5 Bb1 Bc2 Qdd8 Bd3 Ka4 Nfd4 Ka3 Nc6 Qc8 Bh4 g2+ Kg1 Qcd8 Be4 Qd5 Nb8 Qg8 Kf2 g1B+ Kg2 Be3 Kh1 Bc1 Rg2 Qdd7 Rh2 Qef7 e8R Bb2 Rd8 Qde8 Rd6 Be7 Rb6 Bd8 Rc6 Ba5 Rb6 Qd8 Nd4 Qge8 e6 Rf8 e7 Qdd5 Rg6 Qg8 Rd6 Rf2 Rb6 Rg2 Ne6 Rh8 h7 Qgf7 Rf5 Rf8 h8R Qg8 Re5 Rf4 Rh7 Rfg4 Rf5 Qgf7 Rf1 Qfg8 Nf8 Qdf7 Ne6
2Bq4/3p1r2/1P3pKB/N4N1r/k1q1b2B/2n1PPN1/rr2R3/rnR1rN2 b - - 0 1 legal: proof: h4 e5 d4 exd4 a4 c5 Qd3 b5 Qg6 hxg6 axb5 Qg5 b4 Qd8 g3 Be7 h5 Bh4 gxh4 cxb4 Ra4 g5 Ra6 Qc7 Ra1 Qd8 Kd2 a5 Kd3 g4 Ke4 g5 Kf5 f6 c4 b3 h6 g3 f3 g4 h7 b2 h5 a4 b6 g2 h6 g3 c5 d3 c6 a3 c7 d2 e3 d1Q Rh2 a2 Bc4 Qd3+ Kg4 Nc6 Kh5 Nce7 Bb3 Bb7 c8N Nd5 Ne2 g1R Nd6+ Ke7 Bd2 g2 Nc4 Re1 Ng3 g1R Na5 Kd6 Re2 Kc5 Bc4 Nc3 Ba6 Qc4 Kg6 Bd5 Bc8 Kb4 Ba6 Ka4 Bc8 Nb5 Bb4 Nc3 Nd2 b1R Nf1 Rb2 Rc1 a1R Bd6 Rh1 Bf4 Rh3 Bg5 Rh5 Bh4 Ne7+ Kg7 Re8 h8N Raa2 h7 Be4 Ng6 Ned5 h8B Nb1 Ne7 Rf8 Nef5 Rf7+ Kg6 Ndc3 Bg7 Kb4 Nb7 R8a3 Na5 Ka4 Bf8 Ra1 Bg7 R3a2 Bh6
N4K1b/p1N5/P3q2p/r2b2B1/pBR5/3P2Bq/Nqb3Pn/nR2r1kB b - - 0 1 illegal: Other
2r3rN/Br1NPp2/K7/1nk2n1p/4q1r1/3p1bb1/R1N1PR1P/1r1RBN2 b - - 0 1 legal: proof: d4 a5 f4 b5 a4 e5 axb5 c5 fxe5 cxd4 b4 g6 g3 Qh4 b6 Qe7 b5 Qc5 Bh3 Qe7 Qd2 Qd8 Qb4 axb4 Bf5 gxf5 Kd2 Ke7 Kd3 d5 c4 h5 b7 f4 b6 b3 c5 f3 g4 f2 e6 f1R c6 Kd6 c7 b2 e7 Bg7 g5 Rf6 g6 Bh6 g7 Ra5 Bd2 Rb5 Nh3 Rg6 Ra2 Na6 b8N Kc5 b7 Rg4 Rd1 Bf4 Be1 Nh6 g8R Bg3 Nf4 Nf5 Nd2 b1R Ng6 R5b4 Rg7 Rg8 Nc6 Qe8 b8B Rb7 Nb4 Qc6 Nh8 Qg6 Kc2 d3+ Kc3 Qh7 Nf1 d2 Kd3 d4 Nc2 Bd7 c8N Nc7 Nb6 Bc6 Rg5 Nb5 Ba7 Bf3 Rg7 Kd6 Kc4 d3+ Nd4 Rc1+ Kb4 Rc4+ Ka5 Rcc8 Nc2 Kc5 Rg5 Qg6 Ka6 Qe6 Rg6 Qe4 Rf6 Ne3 Rda1 d1R Rf4 Rb1 Rf6 Rb4 Rd1 Rb1 Rf4 Bg2 Rf3 Nf5 Rf2 Bf3 Nd7+
1R1N2q1/pP1pkB2/1np5/1NR2P2/1nb3Rr/1rB3Kb/P3rrn1/3NR3 b - - 0 1 legal: proof: g4 b5 f4 h5 e4 e6 g5 Bd6 Qg4 hxg4 c4 f5 exf5 bxc4 d3 cxd3 Nd2 Be5 Nb1 Bf6 gxf6 Rh4 Be2 Rh5 Bf1 Rh8 Kf2 g5 b4 g3+ Kg2 d2 h4 d1B f7+ Ke7 f8N c6 h5 e5 h6 e4 h7 g4 b5 e3 b6 e2 Ne6 Nf6 Rh6 Ba6 b7 Qg8 Bb2 Nd5 Rh5 Bc4 Nh3 Na6 Nd8 Nb6 Bc3 Nb4 Nf2 e1R Na3 Re2 Nb5 Rc8 Nf7 Rf8 Nd8 Bdb3 Rg5 Be6 Re1 Bbc4 Kh1 g2+ Kh2 g1N Kg3 Rf6 Nd1 Nf3 Bg2 Nh4 Bd5 Rf7 Rh5 Ng2 f6+ Ke8 Rf5 Rf8 f7+ Ke7 Kh2 g3+ Kh3 Re8 f8R Rb2 Rf6 Rb3 Rg6 Rf8 Kg4 Rf7 Kf3 Rf8 Rh5 Rf5 Kg4 Re5+ Kf3 Bh3 Rg4 Re2 Be6 Ne3 Bf7 g2 Rc5 g1R f5 Rf1+ Kg3 Ng2 Bh5 Rf2 Bg6 Qd5 Be8 Rf8 h8R Qg8 Bg6 Rf6 Bh5 Rh6 Bf7 Rh4 Ne6 Qh7 Rb8 Qg8 Nd8
B2R1R2/p2K1R1b/P1BP1Bk1/2rb3r/2PN2B1/1N1rqq2/rr1p1p2/6n1 b - - 0 1 legal: proof: g4 c5 b4 cxb4 f4 h5 g5 g6 c3 Bh6 f5 gxf5 Qc2 f4 Qf5 Bf8 Qg4 hxg4 e4 d5 Bc4 Bg7 Bf1 Nd7 c4 Bc3 dxc3 d4 Bh3 Nb6 Bf1 Nd5 exd5 Rh4 Ne2 Rh5 Ng1 Rh8 Ke2 b5 Kd3 e5 Ke4 f5+ Kd3 Kf7 a4 f3 h4 f2 h5 f4 Ke4 f3 a5 b3 h6 b4 a6 g3 c5 b2 h7 d3 d6 b3 Kd5 d2 Kc6 g2 c4 e4 Rh5 e3 Ra4 e2 Nc3 e1R Bd3 b1R Nb5 f1R Rb4 b2 Nd4 Nf6 Rb8 Ng4 Be4 Be6 Nb3 Qf6 Ne2 g1Q Rd8 Bd5+ Kd7 Qe3 c6 f2 c7 Nh2 c8B Nf3 Ned4 Ng1 g6+ Kg7 Rg5 Qff3 Rf5 Kh6 g7 Kg6 Bb7 Rc8 g8B Rc5 Ba8 Ra1 Bc6 b1B Bb2 Ra2 Be6 Rc1 Rdf8 Rc3 R8f7 Rb8 h8R Rd3 Rd8 Bc2 Ba1 Rb1 Bc3 Rbb5 Ba1 Rbb2 Ba8 Bb7 Bc6 Rba5 Rf4 Rh5 Bg4 Rac5 Rff8 Bb1 R4f7 Bc2 Ba4 Bd5 B4c6 Rb1 Na5 Kg5 Ba4 Rda3 Ndc6 Bh7 Bf6+ Kg6 Nd4 Rd3 B4c6 Rbb2 Nab3
2R3K1/1PpBP3/1q2nBb1/pr2rr1P/3Np3/4q1n1/1k1R3r/RNnR3B b - - 0 1 legal: proof: g4 b5 a4 bxa4 d4 h5 c3 e5 dxe5 hxg4 e4 f5 b4 Qh4 e6 Kd8 e5 Qe7 b5 Ke8 Qc2 Qd8 Qe4 Bb4 cxb4 fxe4 Kd2 Ke7 Ke3 d5 Kf4 g5+ Kf5 a5 Kg6 a3 Kg7 d4 h4 d3 f4 a2 f5 d2 b6 d1R b7 g3 b5 g4 b6 g2 Ba3+ Qd6 Bb2 g3 Na3 Nh6 Nc2 Rd5 Bc3 Nc6 b8R Nd4 b7 Rb5 Bc4 Qb6 Ne2 g1R Bd3 g2 Na3 Rf1 Nb1 Rf4 Rh2 g1Q+ Rg2 Bd7 Rd8 Qe3 Rg1 Rc8 Rd1 Be8 Rd5 Bg6 f6+ Ke8 e7 Rf5 Bc2 Rd8 Ba4 Rd6 f7+ Kd7 e8B+ Ke6 f8R Rd7+ Rf7 Re7 Bc6 Ree8 Rd2 Re7 Bd1 Ree8 Rd8 Re7 Bd7+ Kd5 e6 Kc4 Rc8 Ree8 Nf4 Re7 Bf3 Kb3 Bh1 Ree8 Na3 Re7 Rad1 a1N Nb1 Ree8 Bb2 Ka2 Ne2 Nab3 Rf6 Nc1 Rf8 Rfc5 Rff1 Nhf5+ Kf6 Ng3 Kg7 Re5 e7 Ref8 Rg1 Rff5 h5 Rhf8 Rge1 R8f6 Rg1 Ne6+ Kg8 Rf2 Nd4 Rh2 Rge1 Rff5 Nc6 Red5 Bf6+ Kb3 Rf1 Rde5 Nd4+ Kb4 Na3 Kc3 Rde1 Na2 Ra1 Nc1 Re1 Rh3 Red1 Rh2 Ndc2 Kb3 Nb1 Kb2 Nd4+
r1RKB1rk/r2bnPP1/2p2B1p/3B2b1/3Nr2p/2PR4/2rN4/bR4Bn b - - 0 1 illegal: No possible last move
k2q1B2/2p1R1p1/6BN/bP1q1b1N/1nP5/2RB1n2/b1P1Kp2/bN1nb1B1 b - - 0 1 legal: proof: f4 e5 a4 exf4 d3 b5 Bd2 bxa4 Bc1 a5 Ra3 Ra6 Ra2 Rc6 Ra1 Rc4 dxc4 Ba6 Nd2 Bb7 Nb1 Bc8 g4 h5 Qd4 f5 Qc3 f3 Qd3 f4 Qf5 Rh6 Qg5 Rf6 Qh4 Rf5 gxf5 Qg5 Qh3 Qd8 Qg4 hxg4 b4 d5 e4 Kd7 h4 Kc6 e5 Kb7 h5 f2+ Kd1 g3 e6 a3 h6 a4 f6 f3 e7 a2 e8B g2 h7 d4 h8N d3 f7 d2 Bd3 f1B Rh7 f2 Rh6 a3 Re6 Na6 Be2 Ka8 Rg6 Nf6 Bh5 Bd7 Nc3 Ng4 Nh3 g1N Rc6 Nf3 Re6 Bd3 Bg6 Ba4 b5 Bb4 f8B Bb3 Nb1 Bf5 Ke2 Ne3 Nf4 Ba5 Nf7 Nb4 Re7 Nd1 Nh6 Qd5 Nh5 Qd8 Nc3 Qd5 Rb1 a1B Bef7 Ba2 Rb3 Qd8 Nb1 Bc3 Bg8 Nb2 B8h7 d1Q+ Ke3 Be1 Rc3 Q1d4+ Ke2 Q4d5 Bf4 Nd1 Bg3 Bb3 Bh2 a2 Bg1 a1B Bf7 Ba2 Bfg6 Bd7 Bd3 Bf5 Bg6
2B1B2k/1p3nBb/2rP1R2/KNrnNq2/6pb/p2q4/PB1p2P1/q1N2R2 b - - 0 1 legal: proof: c4 f5 d4 d5 h4 Qd6 e4 c5 exf5 dxc4 b4 Qc7 Qd3 cxd3 bxc5 Qg3 Be2 Qxh4 Bf1 Qh2 Kd2 Kf7 Kc3 a5 f4 h5 d5 e5 f6 g5 f5 a4 Kb4 g4 d6 a3 c6 h4 c7 e4 Nc3 e3 Nce2 d2 Bb2 h3 Rd1 Qf4+ Bd4 h2 Ra1 Ra6 Nh3 Be7 Nf2 Rc6 Nc3 e2 Ka5 e1Q Bb5 Qf1 Nd3 Nh6 Nc1 Qd3 Rf1 Kg8 f7+ Kh7 f8B h1Q f6 Nd7 f7 Qff5 Rf3 Bh4 Bfg7 Nf6 f8N+ Kg8 Ng6 Nf7 Rb1 Nd5 Ne5 Rh5 Ba4 Bd7 c8B Kh7 Nb5 Qd1 Bf8 Kh8 Rf1 Be8 Rb4 Rg5 Bb2 Qe1 Rbf4 Rh5 Ne2 Qa1 Nc1 Qg5 Rd4 Bd7 Nc7 Nc3 Rb4 Rb6 Rbf4 Bf5 Be8 Bh7 Rf6 Rc6 Nb5 Qf4 Nc4 Rhc5 Ne5 Nd5 Bh6 Qff5 Bg7+
1K3n2/PR3N2/1pBB1q2/Rp1rbP2/3n2kq/n7/1pnp2PB/B2N2rN b - - 0 1 illegal: No proof kernel
1n6/4n3/p2pp2B/b1pN1N1p/kNb1K1pP/2qB4/PP2Rb2/b1RNR3 b - - 0 2 illegal: Other
1br1rR1b/1n2k3/1RB1b1bp/q1nRb2P/1PKP4/2N5/N4R1B/1Bq1nr2 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 dxc4 axb5 g5 f5 g4 f6 exf6 Qc2 f5 Qb3 f4 Qf3 gxf3 b4 f5 g4 c5 h4 a5 e4 a4 h5 c3 b6 f2+ Ke2 f3+ Ke3 c4 g5 c2 g6 h6 g7 a3 b7 a2 e5 f4+ Ke4 c3 d3 Bd6 Kd5 Nc6 b8R Be6+ Ke4 Na5 Kd4 Nf6 g8B Ke7 Rh2 Nd7 Nd2 Nb7 Bh3 f1N Rc8 f2 Bg2 f3 Bh7 Bb8 Ne2 Ne3 Rc5 f1B Nb3 f2 Bc6 Qa5 Rd5 Ng2 Kc4 Ndc5 Bf4 Re8 Nbc1 Ne1 Rg2 Rc8 Bh2 Re8 Rg6 Bg2 Rf6 f1R Rf2 Bgh3 Bg6 Bf7 Bf5 Bg6 e6 Be5 Be4 Rac8 Bf5 Kf6 e7 Kf7 Rb1 a1B Na2 c1B Rb3 c2 Ra3 Bg5 Nec3 c1Q Ra4 Bgf4 Ra3 Qd8 Ra6 Qa5 Rb6 Bh8 Be4 Be6 Bf5 Rg8 e8R Bb8 Rf8+ Ke7 Rf6 Rge8 Rf8 Qe3 Nb1 Bae5 d4 Qea3 Nbc3 Qc1 Bb1
Kb1B4/4PPNp/1q2R3/6r1/1bRnBq1q/1N1Nr2n/4n1bP/RN1qq1k1 b - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 c5 d5 c4 Qd3 cxd3 d6 exd6 Bh6 d5 Bc1 d4 Kd2 Ke7 b4 Kf6 f4 Kf5 c4 Ke4 e3 g5 c5 d5 b6 a5 b7 a4 f5 g3 b5 a3 c6 a2 f6 g2 f7 g4 c7 g3 b6 Nh6 Na3 Qh4 Rb1 a1B Nf3 g1Q Rb2 g2 Rb4 Nc6 b8N Ra5 b7 Ng4 Na6 Nf2 b8R Nh3 R4b6 Bb7 c8N Rb5 Bb2 Bb4+ Bc3 Rc5 Ne7 Re8 Rc8 Qgf2+ Be2 g1Q Ne1 Qff4 Nf5 Bb2 Ng7 Ra5 Kd1 d2 Kc2 d1N Kb3 d3 Nb1 d2 Nd3 d4 Kc4 Rg5 Bg4 Ree5 Bf5+ Kf3 e4 Kg2 Nac5 B2a3 Ba1 Nc3 Nb3 d1Q Rc7 Re6 e5 Ne2 Kd5 Qde1 Be4+ Kf1 Rc8 Bd6 Bc3 Bb8 Ba5 Bb4 Ra6 Re7 Bd8 Re8 Ra7 Ba8 Re7 Bb7 Re6 Re7 Nf2 d3 Rc7 d2 Nd3 d1Q Rc8 Ncd4+ Rcc6 Bc8 Rc4 Nb5 Kc6 Nbd4+ Kb6 Bd7 Kb7 Re8 Ra6 Be6 Ka8 Bd5+ Rac6 Re7 Bf5 Bg2 e6 Rd7 e7 Rd5 Re6 Re5+ Rcc6 Re3 Be4 Qc2 Bc7 Qc5 Bd8 Qb6 Ndc1 Kf2 Rc4 Qgf1 Rg1 Qd1 Rh1 Qfe1 Rc7 Qed2 Rc4 Q1c2 Na3 Qdc3 Rd1 Qe1 Nd3+ Kg1 Ra1 Qcd1 Nb1
7K/qn1PN1nb/BB1n1R1p/Rb2kPq1/R2N3b/1N2r2P/1qr2N1r/6n1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 a4 dxc4 axb5 fxe4 f5 g6 Qg4 g5 Qf4 gxf4 Ke2 Kf7 b4 Kf6 g4 a5 d4 c5 d5 e5 b6 f3+ Ke3 a4 b5 f2 d6 a3 b7 c3 b6 c4 Bb2 a2 Nh3 c2 Nd2 c1R Rb1 a1Q Ng1 c3 Ba3 c2 Bg2 f1B Rb2 Nc6 b8N Nd4 b7 Ne7 Rb5 Be6 d7 Nc8 Nb3 Be7 Ne2 Bg8 Na5 Ne6 Bf3 Nd6 Ng3 Ng7 Bc5 h6 h3 Bh7 Rb6 Bb5 Nbc6 Re8 Nb3 Ra2 b8R Rb2 Rf1 Qa7 Be2 Ra2 Ncd4 Rb2 Kd2 e3+ Kc3 e4 g5+ Ke5 g6 Bh4 Rf4 Qg5 Ra8 Re6 Bf1 e2 Nh1 e1N Nf2 e3 Ra6 e2 Bb6 Nf3 Rf8 e1N Ra5 Rbb1 Rf6 Nd3 Rg4 Nc5 Rf4 Bc6 Ba6 Rb2 Rg4 Ng1 Rf4 Nge8 g7 Bb5 g8N Ncb7 Ne7 Ra2 Ne2 Ng7 Rfa4 Rf1 Ned4 c1Q+ Nc2 Qb1 Ncd4 Qb2+ Kb4 Rc1 Rf7 Nge8 Nd1 Qa1 Nc2 Ke4 Rf8 Qb1 Kc3+ Kf3 Kd4 Kf4 Kd5+ Re4 Ncd4 Rh2 Nf2 Qb2 Rf7 Re2 Rf8 Rec2 Ke6 Rd1 Rf6 Rd3 Nc8 Ng7+ Ke7 Ne4 Kf7 Ke5 Ne7 Rdc3 Kf8 Re3 Kf7 Ned6+ Kf8 Bg6 Kg8 Bh7+ Kh8
K3n1R1/4PrN1/kb3nB1/6N1/1p2Rnb1/nP1P1bNq/2qrN3/2Bnb2R b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 a3 b3 exf6 Qc2 f5 Qc3 f4 Qb2 axb2 Kf2 Kd7 Kf3 c5 Ke4 Kc7 g4 Kb6 a4 f5+ Ke5 h5 e4 h3 d6 h4 Kd5 f3 d7 f2 g5 h2 e5 h3 g6 f4 e6 c4 d3 c3 a5+ Ka6 g7 b5 Na3 b1N Bd2 c2 Ne2 c1B Nc4 b4 Rg1 h1N Ne3 h2 Ra4 f3 Nd1 Ra7 Nf4 Bc5 Nh5 Na3 Bg2 f1N Nc3 f2 Be4 Qc7 d8N Nhg3 Rh1 Nd7 Ne2 Bb6 Nf7 Qc2 Bg6 Ngf6+ Kd6 Rh6 g8R Ne3 Ng5 f1Q e7 Nd1 Bf4 Qh3 Be3 Bb2 Bc1 Bc3 Kc6 Rh7 Re1 Rf7 Rh1 Nf1 Nhg3 Nfe3 Re1 Ne8 Rh1 Nb5 Ra2 Nd5 Ra1 Ra8 Re1 h1B Rb1 Ka7 a6 N7f6 Ra1 Bg4 Rb1 Kb8 a7+ Kc8 Ra1 Na3 Rb1 Bhf3 Rh1 Rb8 a8N Rb7 Nc7 Ra7 Nce6 Be1+ Nc3 Kb8 Ng7 Ra5 Ra1 Ka7 Ra2 Ka6 Ra1 Nc4 Nce2 Ra2 Rb1 Qd2 Rb2 Na3 Rc2 Rb2 Rc4 Nf4+ Re4 Qc2+ Nc3 Ka5 Kb7 Ra2 Ka8 Ka6 N7h5 Qch2 Ng7 Rd2 Nce2 Qf2 Rf8 Qc5 Rh8 Qc2 Rg8
3b1q1N/1r1n1qBB/K2b1k2/bN1B3n/1Nr5/5qpB/PP3qP1/R1Rb2r1 b - - 0 1 illegal: No proof kernel
qNRn1B1b/2qb2r1/r2R2BP/2Nq2n1/np1P2q1/1PBnB3/K1k5/3b1N2 b - - 0 1 legal: proof: g4 d5 e4 h5 c4 hxg4 cxd5 a5 b3 f5 Na3 fxe4 Qc2 a4 Nb1 a3 Qb2 axb2 Kd1 Kd7 Kc2 Kd6 a4 Kc5 f4 Kd4 h4 b5 f5 e5 d3 c5 a5 g5 h5 g3 h6 e3 a6 b4 a7 g2 d6 c4 d7 g4 f6 e4 f7 g3 Rh2 e2 Nd2 e1Q Kb1 Kc3 d4 e3 Rh3 e2 Ra6 Nc6 Ra5 Nf6 Ra1 Ne4 Rh2 Nc5 Rh1 Na4 Rh2 Rg8 Ka2 Rg7 Rb1 Kc2 Rh4 c3 Nh3 g1N Rg4 g2 Rg6 Nf3 Ng5 g1Q Ne6 Qg4 Nc5 Ng5 Bg2 Qh1 Rd6 e1N Be4+ Nd3 Bg6 Qd5 Nf1 Qe8 d8B Bd7 Bf6 Nd8 Bd2 Be7 Be5 Bf6 Bef4 Qh8 f8B Be5 Re1 b1B+ Ka1 Rc8 a8N Rc6 Re4 Ra6 Nb6 Qhg8 Re2 Qa8 Rh2 Qgd5 Bfe3 Kd1 Be8 c2 Ne4 c1Q Bh5 Rf7 Re2 Bf5 Nd7 Bh8 Nb8 Bc2+ Ka2 Rg7 Rf2 Bc8 Rf7 Bf5 Rc7 Bd7 Rc8 Bb1+ Ka1 Qc7 Nc5 Bc2 Be1 Bf5 Bg6 Bd7 B3f2 Kc1 Bc3 Bd1 Ka2 Kc2 Be3
2R1R1Nq/pR3kr1/Pr1nr1q1/B2P3r/4Np2/b3PB2/3nbK1N/2R2br1 b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 Qa4 exf4 bxc5 Qc7 c6 d5 c5 Qd8 Qc4 dxc4 d4 h5 a4 f5 g4 b5 a5 h3 a6 b4 c7 f3 g5 h4 d5 c3 c6 c2 e3 b3 g6 f4 g7 h2 Ba3 c1R+ Kf2 h3 Bc4 b2 Ne2 Rh7 Bc5 Nh6 g8N Rg1 Bd6 Nd7 Ra4 Ne5 Ra5 Rhg7 Ne7 Nhf7 Nc1 Bg4 c8R Rb8 c7 Rb6 Be2 Nc4 Bf1 Nd2 Nc3 b1Q Nb3 Qg6 Bb4 Nd6 Ne4 Kf7 Ng8 Bh5 Rb5 Be7 Ngf6 Qh8 Re8 Bg4 c8R Bf8 Na5 Bh5 Ng4 Be7 Ke1 f2+ Ke2 Bf8 Bg2 f1B+ Kf2 Be7 Nc6 Bf8 Ngf6 Bhe2 Bf3 Rg5 Ng4 Re5 Nef6 Nb7 Ke1 Bg2 Ne7 Rd6 Red8 Ree6 Rg1 h1R Rb6 h2 Kf2 Rc6 Re1 Rg1 Ba5 h1R Ne4 Bgf1 Rc1 Rh5 Ng8 Ba3 Nh2 Nd6 Rbb8 Rb6 Re8 Rb4 Rb5 Rb3 Rbb8 Rb6 Rb7+
4nb2/q1Bn4/R2b2P1/nb3q2/k1b2p1R/rp2Rb2/1NP2PN1/B3KBrB b - - 0 1 legal: proof: d4 b5 b4 c5 h4 e5 a4 g5 Qd2 gxh4 axb5 exd4 b6 Qe7 b5 Qd8 Qb4 cxb4 g4 f5 e4 h5 b7 d5 g5 Kd7 b6 Kc6 e5 a5 e6 f4 e7 h3 e8B+ Qd7 g6 b3 Bf7 h4 Kd1 h2 Ra4 h3 Ke1 d3 Rc4+ Kb5 Rc3 a4 Rc6 d4 Rc7 a3 Nf3 a2 Ba3 a1B Ng5 Ka4 Kd2 Nf6 Nh7 Ne8 Nf6 Qf5 Bc5 Be6 Rd7 Bc4 Rd5 Nd7 Ke1 d2+ Kd1 Rh5 b8B Rg5 b7 Rg1 Bbd6 Bc3 b8R Bb4 Ba7 Ba3 Bc7 Bad6 Bc5 Bb5 Na3 Ra7 Nc4 Ra6 Ke2 d1N Ne4 d3+ Ke1 Nb2 Ne3 Nc4 Nd2 Na5 Ndc4 Ra7 Ra8 d2+ Ke2 d1B+ Ke1 Bg4 Bd4 Be2 Ba1 Bf3 Ng2 Be2 Nce3 Bec4 Re5 Ka3 Bc3 Nb7 B7a5 Ndf6 Nd1 Ra6 Bc7 Nd7 Rd8 Ra4 Bd5 Na5 Bb2+ Kb4 Ra8 Ra3 Ba1 Ka4 Nge3 Rg5 Rg1 h1Q Ra6 h2 Rg4 Qhe4 Re7 h1B Rh4 Qd4 Be4 Qa7 Nb2+ Kb4 Bb7 Rg1 Re6 Bf3 Re7 Bd1 Bh1 Bg4 Ng2 Bf3 Nd3+ Ka4 Re2 Bde7 Re3 Bd6 Nb2+
2qqRKb1/p4pP1/n2n3b/5P1B/3B2bk/N1rb3N/2N4P/r2BqRnB b - - 0 1 illegal: No proof kernel
1N1N1N2/1PK4B/P1p2k2/R2r4/N1P3b1/b1b1RBr1/p2nb2B/r1n1qnq1 b - - 0 1 illegal: No proof kernel
K3bb2/1Rr1B1pk/1N1nB1P1/b3B1qp/Rn1N3r/1n1P3P/q6B/R2n1b2 b - - 1 2 illegal: No possible last move, all moves rejected
1Rn1kB2/1K1R2r1/2r2P1B/1p6/3P3b/NP1r2qp/1bb1NRrn/3B1bqB b - - 0 1 legal: proof: h4 d5 e4 a5 c4 f5 cxd5 fxe4 h5 a4 h6 a3 b3 gxh6 Qc2 h5 Qc3 h4 Qb2 axb2 Ke2 b5 Ke3 e5 d4 c5 a4 h5 f4 c4 g4 c3 d6 h3 g5 c2 a5 h4 f5 h2 f6 Ne7 a6 Nbc6 g6 Rh7 g7 Bh3 g8B Qc7 a7 Nc8 Nf3 Rg7 Bfc4 Bf1 Bd2 c1R Bge6 h3 Na3 b1B Bcd5 Bc2 Rg1 h1Q Rg2 Qg1+ Rf2 Rb8 a8R Rd1 Ng5 Rb6 Nf3 Rg2 Nh2 Qg7 Bf5 Qg3+ Nf3 Rb7 Rb8 Rg7 Bg4 Be7 Nc4 Rc1 Ra7 Bf8 Na3 Rd1 Ba5 Rc1 Kd2 e3+ Kc3 e4 Rd7 Ne5 Kb4 e2 Kc5 e1R Bd2 Red1 Bh6 e3 Bb7 e2 Bh5+ Ng6 Kc6 e1B Ba8 Rd3 Kb7 Q1h2 Bg4 Nh4 Ng1 Nf3 Ne2 Qg1 Nc3 Ng5 Bd1 Nf3 Ne2 Nh2 Rc7 Be7 d7+ Kf7 d8B Ke8 Rd7 B7b4 Rf3 Bbc3 Rf2 Bb2 Ba5 Bd2 Bb4 Bg5 Bf8 Bh4 Ka6 Bb1 Be4 Rc6+ Kb7 Bc2 Rf4 Rf2 Bh1 Rg2 Rf2
1RnB2kR/3NppN1/1Brr1P2/b6r/2n2p1q/2r1b3/B2NPNP1/n4Kb1 b - - 1 2 illegal: No proof kernel forced: bxLB
4bbrb/2B5/npp1Rp2/2kNqb2/bnB4K/3P1P1N/1Rr4P/q2R2BR b - - 0 1 legal: proof: g4 a5 b4 axb4 d3 h5 Kd2 hxg4 Qe1 e5 c4 d5 cxd5 e4 Kc2 e3 Qd2 exd2 Kd1 Ke7 e4 Kd6 Ke2 d1B+ Ke1 g5 a4 b6 a5 g3 a6 g4 f3 c6 e5+ Kc5 a7 b3 d6 b2 d7 g2 Kf2 g3+ Ke3 Qe7 Kf4 Na6 Kg4 Ba4 e6 Nf6+ Kg5 Rg8+ Kh4 Nd5+ Bg5 Qf6 d8B Qe5 e7 Ndb4 e8R Bf5 Nc3 b1B Re6 Ba2 Nh3 g1Q Rd1 g2 Nd5 Qgd4+ Bf4 g1B Bc7 Qa1 Bg3 Be3 Bf2 Bd4 Bg1 Re8 a8R Rg2 Nhf4 Rc2 Bh3 Bc4 Bg4 Rc8 Ne3 Bd5 Nh3 Bde4 Ra7 Bg6 Ra8 Bef5 Nd5 Bb3 Bh5 Qf6+ Ng5 Bd6 Nf4 Rg8 Ree1 Bf8 Ree8 Nb8 Ra2 Ba4 Rb2 N8a6 Re4 Qe6 Ngh3 Qd6 Re3 Bh8 Ree1+ Qd4 Re2 f6 Re4 Bh7 Bf7 Bhg6 Bc4 Be8 Nd5 Qe3 Nf2 Qe1 Re6 Qe5 Nh3+
3nk1nb/rr3RR1/pPr1BPN1/Nq1b1p1N/P3p3/1R6/r7/nKRq2B1 b - - 0 1 illegal: No proof kernel
1NbKbbqR/2p2k2/P1R1p1p1/BB6/1r2R3/4bnPq/1NqP2rR/1B2n3 b - - 0 1 legal: proof: e4 d5 b4 h5 c4 dxc4 g3 a5 bxa5 f5 Nc3 fxe4 Qf3 h4 Qg2 h3 Nb1 hxg2 Ke2 b5 Ke3 c3 Kf4 e3 Kg5 c2 h4 g6 a4 b4 f4 e2 h5 e1B h6 b3 h7 b2 a6 Nf6 a7 e6 a5 Na6 f5 Qe7 Bb5+ Kf7 Nf3 g1Q Nc3 b1B Bb2 c1Q Na4 Nb8 a6 Qg2 Rh2 Bc2 Nd4 Bf2 Nc6 Nh5+ f6 Nf4 Bc3 Qe8 Nb2 Ba4 Ba5 Qc2 Rc1 Nd7 Nb8 Qh1 Rd1 Ne5 Rc1 Qce4 Rc3 Ng2 Rc5 Ne1 Rc6 Rg8 h8R Qc2 R8h4 Rh8 Re4 Qf1 Rc3 Qh3 Rc6 Kg8 f7+ Kg7 Nd7 Rb8 a8B Rb6 Nb8 Rh4 Bc4 Rb4 Bb5 Bb6 Bb7 Rf4 Ba8 Rf2 Bb7 Rg2 Ba8 Kh7 Kf6 N5f3 Bb7 Be3 Ba8 Bfc5 f8R Qd8+ Kf7 Kh6 Rh8+ Kg5 Rd6 Qg8+ Ke7 Kf5 Bd5 Kg5 Ba2 Kf5 Bd3 Be8 Kd8 Kf6 Bb1 Kf7 Rc6 Bf8 Bb5
b2Br2N/1NK2B2/pn6/RkpP4/n3RRp1/P3bb2/N2NqP1b/1nr1q3 b - - 0 1 illegal: No possible last move
B3Rb1n/3b1p1p/N2rn2R/rr3BnK/P1P3r1/2N1q2P/nk2p1NB/1B6 b - - 0 1 illegal: No proof kernel
4bn1K/Rrp1qP2/k2B3b/2n2p2/5rB1/1p1RN1n1/N1P1P1b1/1BR1Bn1b b - - 0 1 illegal: No possible last move, all moves rejected
q2b1Nb1/N6p/BqN4P/nR1p1nRK/4q1R1/n2pp3/Pr2P1R1/kr3B2 b - - 0 2 legal: proof: d4 c5 b4 cxd4 g4 a5 bxa5 f5 g5 Qb6 Qd2 Qd8 Qf4 Na6 Qg4 fxg4 f4 Nb4 f5 Nc6 f6 Nb8 Bf4 Kf7 Bc7 Ke6 f7 Kd5 Be5 Kc6 Bf6 gxf6 Kf2 Kb5 Kg3 Kc4 Kh4 d5 g6 b5 h3 e5 a6 f5+ Kh5 g3 g7 f4 a7 b4 h4 d3 c3 b3 Bh3 e4 Rh2 g2 Rh1 b2 Be6 f3 Rh2 f2 Nf3 g1Q Nd4 f1Q Bh3 Nh6 g8R Be7 f8N Be6 Rg4 Qfg2 Nc6 Bg8 Rg5 Q2h1 Bf1 Nf5 Rhg2 Qgb6 R5g4 Qc8 Rg5 e3 Na3+ Kc5 c4 b1N R5g4 Bd8 Nb5 Na3 Rb1 Qca6 Rg5 Qa4 R2g4 Qe4 Rb2 Na6 Rb4 Rb8 a8R Rb7 Rc8 Nb8 Nba7 Qaa5 Rc7 Qaa6 Rcg7 Qaa5 Ne7 Kd4 c5+ Kc3 Rb5 Nc6 Rg2 Kc2 R5g4 Qaa4 R7g5 Na5 c6 Kc3 c7 Rb8 Rc5+ Kb2 c8B Ka1 Ba6 Qac6 Rb5 Qa8 Rc5 Qd6 Nec6 Rb1 Nb8 Qb6 Rb5 Be6 Nbc6 Rg8 Rg1 Rg7 R1g3 Rb7 Rg2 Bg8 Rb4 Ng3+ Kh6 Qc5 h5 Rb5 Rb3 Qb6 Rb2 Rc5 Rb3 Rc2 Rb5 Rcb2 Rg6 Bc7 Kg5 Nf5 h6 Bd8+ Kh5 Nb7 Rg7 Na5 R7g5
B5RN/1pRkpnP1/2b1q1q1/3bn1b1/1p4RP/1Pp5/r3R1B1/N2rBn1K b - - 0 1 illegal: No proof kernel
2nBnk1b/Rp4R1/2rR2K1/RrNNB1p1/b1p3P1/B1Pr4/Pr1p4/b4q2 b - - 1 2 legal: proof: d4 h5 e4 f5 b4 a5 g3 axb4 Bg2 h4 d5 h3 Qd4 e6 dxe6 hxg2 e5 Bc5 Qh4 Bf8 Qe4 fxe4 Kd2 d5 Ke3 g5 f4 c5 h4 c4 f5 b3 e7 b2 f6 Bf5 g4 Qd6 c3 Qa6 h5 Rh6 Nd2 b1R Ba3 Rb5 Nh3 Nc6 Rad1 Rd8 Nf4 Bd7 Nb3 Na7 Nc5 Nc8 Rd3 Kf7 e8R g1R Re6 Rg2 Rd6 Bg7 e6+ Kf8 f7 Nf6 Rb1 Rg6 h6 Bh8 h7 Rgb2 Rh1 Ne8 e7+ Kg7 Kd4 e3 Ke5 d4 Nd5 e2 f8B+ Kf7+ Bg7 e1B Bf6 Bd2 Re1 Bc6 Kf5 Bc1 Re5 Qa8 Rh3 d3 Rh5 d2 Rh4 Nc7 e8R Bd7+ R8e6 Kf8 Ra6 Rh6 Ra7 Ne8 Rh3 Bc6 Rd6 Rg6 Rd3 Qb8 Re7 Qc7 Rg7 Qf7 Ke5 Rd7 Bd8 Qf1 Re3 R5b3 Rd3 Ba4 Rda6 Rc6 Ra5 Rb5 Ke4 Qh1+ Kf5 Qh3 Nb4 Qg2 Rd6 Qh1 Kg6 Qf1 Re6 Rd3 Nd5 Rb1 Rd6 Bb2 Rd7 Ba1 Rc7 Bg7 h8B Bd4 Be5 R1b2 Bh2 Bg7 Be5 Bh8 Rg7
k2b2B1/2n4N/1pbpR3/R1pp3r/P4NBN/1q5r/rPnPb1K1/B1rN4 b - - 0 2 illegal: Other
kq2B1K1/1r6/Bp1p2bP/1NP2q1n/Rp3NR1/bP1b3n/3B3p/b1rN2B1 b - - 0 1 illegal: No proof kernel
3n3B/1p2b3/pqbnk1bN/1BR2B1r/1RPq1bK1/P6p/2N1np1P/2R2B2 b - - 0 1 legal: proof: e4 c5 f4 e5 b4 cxb4 Qg4 d5 Qg5 dxe4 Qh4 a6 Qh5 e3 Qd1 e4 Nf3 g5 Ng1 Bf5 Qh5 Nc6 Qh4 Rc8 Qg3 Rc7 Qf2 Re7 Qh4 Re5 fxe5 Nce7 Qg4 Nc6 Qf4 gxf4 Ke2 Kd7 g4 h5 c4 h4 d4 h3 a3 b3 g5 b2 g6 Nge7 g7 Ke6 g8B Nc8 Bd2 Nd6 Nc3 b1N Bh7 Be7 Nd1 Bg6 Nf3 f5 Nf2 Qb6 Ne1 Nd8 Nc2 f3+ Kd1 f4 d5+ Kf5 Ng4 f2 e6 f3 Nh6+ Ke5 Ra2 Kf6 Rb2 e2+ Kc1 e1B Kd1 e3 Rb4 Ke5 Bc1 Bd2 Bb2+ Qd4 Ba1 Bf7 Bf5 Bg6 Ng8 Rh5 Nh6 Bf6 e7 Bg5 e8B Be7 Bg2 f1B Bb5 f2 Rg1 Bd3 Bf1 Be4 Ke2 Bc1 Bg2 Bd2 Rc1 Kf6 Bf1 Bh1 Bg2 Nc3+ Kf3 e2 Bb2 Bf4 Kg4 e1Q Bf1 Qee3 Ba1 Nc8 d6 Ne2 d7 Nd6 Bc3 Bc6 Bb2 N8f7 d8R Qb3 Rc8 Nd8 Ba1 Qbb2 Rc7 Qb6 Rc8 Q2d4 Rc7 Be4 Rc5 Bc6 Be4 Ke6 Bc3 Qd1 Bh8 Qd4 Bf5+
3Nq3/2Br1qP1/p2r3p/1q1Np2B/2nNP3/3kp3/PR2b1qB/RKn1r2B b - - 0 1 legal: proof: e4 g5 c4 d5 h4 b5 f4 bxc4 g4 gxf4 g5 d4 g6 Bh6 Qb3 Bg5 Qe3 dxe3 hxg5 Qd3 Be2 Qd7 Bf1 Qd8 Kd1 Kd7 Kc2 Kd6 b4 Ke5 d3 Kd4 g7 f5 g6 c5 b5 e5 b6 a6 b7 c3 Nh3 f3 Rh2 f2 Na3 h6 Nb1 f4 Ng1 f3 Rh4 c4 Nd2 Rh7 Rh1 Ne7 g8B Qe8 Bb2 Nd5 Kb1 Nb4 Rh4 Nd7 b8B Nb6 Bd6 Bg4 Bg2 Rd8 Bh1 Rhd7 g7 f1Q+ Bc1 f2 Bf7 Bf3 Bc7 Be2 Nh3 Qg2 Nf4 f1Q Nd5 Qf5 Bh5 Qff7 Rg4 Rd6 Rf4 R8d7 Rf2 c2+ Kb2 Kc5 d4+ Kb5 Nf3 c3+ Kb3 Nc4 Bd2 c1R Be1 c2 Kc3 Qh2 Rg2 Nd3 Bg3 Qh3 Bh2 Re1 Rf2 c1Q+ Kb3 Qa3+ Kc2 Nc1 Kb1 Qa4 Rg2 Bd1 Rb2+ Qb3 Nc3+ Kb4 d5 Be2 Nd4 Qhf1 Bf4 Qg2 Bh2 Re6 d6 Kc5 Nd5 Qb5 Nf5 Rf6 Nfe7 Kd4 Nf5+ Kd3 Nd4 Re7 d7 Rd6 d8N Red7 Bf4 Qa5 Bg3 Qb5 Bh2
1q6/bb2r3/1kp1pnN1/1P1p1rpB/NK3RBR/1B2P2B/1r1P1Rnp/1b6 b - - 1 2 legal: proof: c4 b5 h4 bxc4 b4 a5 b5 g5 hxg5 Nf6 Qb3 Ng8 Qc3 Na6 Qb4 Nb8 g4 axb4 g6 f6 g7 Ra7 g5 Kf7 g6+ Ke8 Bb2 Ra6 Be5 Ra5 Bf4 Ra8 Bg5 fxg5 f4 h5 a4 c3 e3 c2 f5 c1R+ Ke2 b3 Kd3 b2 a5 h4 a6 h3 a7 Nc6 f6 Bb7 Nc3 Rh7 Kc4 Ne5+ Kb4 Nf3 Nge2 Nh4 Nf4 Rc2 Na4 d6 f7+ Kd7 Re1 b1B Re2 c6 Rf2 Kc7 Be2 Nh6 g8B Ng2 Bh5 Ng4 g7 Qe8 Ng6 Ra2 Rc1 h2 Rc4 Rd8 Re4 Rd7 Rd4 Qb8 Rc4 Ne5 Rh4 Ng4 Ka5 Rb2 a8B Ba6 Bb7 Rd8 Bc8 Bb7 Bf5 Rc8 Bc2 d5 Bb3 Re8 Kb4 Rh6 Nh8 Rf6 Bh7 Rf3 g8B Bg7 f8R Bd4 Rf6 Ba7 Bf5 e6 Bgh7 Re7 Rf8 Nh6 Bh3 Ng8 Bc2 Rf6 Bcf5 Rff7 Bfg4 Rf6 Nc5 Kb6 Ng6 Rf3 Rf5 Nf6 Na4+ Kc7 Re5 Rf4+ Re4 Rf5 Nc3 Kb6 Rc4 Nh7 Rcf4 Nf6 Na4+
4r1BR/1qpK2p1/2RP3b/1b5r/1Nr5/pppNNq2/N1P1n1Pk/1BB1n3 b - - 1 2 illegal: No proof kernel
7q/2r3pN/3n2p1/2BP2PB/pqpRb2p/PR1pBN2/k1n1R2b/b2K1B2 b - - 0 1 illegal: No proof kernel
1N1b1q2/PRqr4/1n1N2bR/q2b1q2/1Q1k3r/3rNQnQ/1R3PPK/7b b - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 c5 g5 hxg5 d6 cxd6 Ra6 Nc3 Ra7 Nb1 Ra8 e4 f6 d4 Be6 d5 Bg4 Bb2 Bc8 Bd4 exd4 e5 f5 Bd3 Na6 Bc2 Nb8 Be4 fxe4 Kf1 Kd7 a4 h5 g6 c5 g7 b5 a5 h4 a6 c4 a7 e3 Qb3 h3 Qa3 b3 Rh2 d3 Ra2 b2 Qc5 e2+ Ke1 b4 Ra4 c3 Nd2 b1B Nb3 c2 Ra5 Be7 Nd4 b3 Qb4 b2 Rb5 Nf6 g8R Nh5 Rg7 Ng3 Nf5 Qf8 Nf3 Rh4 N3d4 Bb7 Ne3 Bc6 Rh1 h2 Rh7 Bb7 Rh6 Bf6 Nc6 Bd8 Rg1 h1B e6+ Kc8 d7+ Kc7 e7 c1Q+ Nd1 Qc4 Ne3 Qc5 e8Q Bc2 Qee4 b1Q+ Nd1 Qc1 Qf3 Qcf4 Ne3 Q4f5 Na5 Qb6 Nac4 Bc6 d6+ Kb7 Rg6 Bd5 Rh6 Kc6 Rf1 Qc7 Rb7 Na6 Rg1 Nc5 Rf1 Na4 Rg1 Be7 d8Q Nb6 d7+ Bf6 Qde7 Rd8 Nd6 Bb1 Qbg4 Kc5 Qh3 Kd4 Rf1 Ra8 d8N Bg5 N8f7 Rd8 Ne5 Rd7 Nc6+ Kc3 Qe8 Bd8 Nb8 Kd4 Qe7 Bba2 Ne4 Bf7 Nd6 Bad5 Kd2 Bg6 Rb1 e1R Rb5 Rc1 Rb2 Rc3 Ke1 d2+ Kd1 Ne4 Ke2 Rd3 Kf1 Ng3+ Kg1 d1Q+ Kh2 Qe1 Ndc4 Qa1 Qb4 Qa5 Nd6+
1Rb5/1rR1P1Bk/rb1r1Qrq/1Q4B1/3nPQ2/1R1B2bP/r2r4/3bnK2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 a4 c5 axb5 h6 d4 cxd4 Nh3 Bd6 Nc3 Bf8 Nf4 gxf4 Ne4 h5 g5 Qf6 Nf2 Qd8 Ng4 hxg4 b4 a5 c4 d5 e4 f5 g6 g3 g7 Kf7 h3 Kg6 b6 d3 c5 d4 e6 f3 b7 f4 b5 f2+ Kd2 f3 b6 g2 c6 g1B c7 a4 Ra3 Rh7 Qc2 Bd6 Rc3 a3 Qd1 a2 Ba3 a1R Rc5 Qf8 Bg2 f1R Rc6 f2 Rh2 Bg3 Bb4 R8a2+ Qc2 Nd7 b8B Ne7 b7 Ne5 Bc3 Nf5 g8R+ Rg7 e7+ Kh7 Rb6 Rfb1 Bf1 Rg6 Rb3 Raa6 Ba7 R1a2 b8Q Rad6 Be2 f1R Qb2 Rba1 Qb5 Rfb1 Rh1 Raa6 Bc5 R1a2 B5b4 B1f2 Rc1 Qh6+ Kd1 d2 Bd3 Be3 Ke2 d1B+ Kf1 Nf3 Qf2 Ne1 Qf4 Rbb2 Ba3 Rd2 Rc2 Rdb6 Bc1 Rb7 B3b2 Be6 Rb8 Bc8 Be2 d3 Bg7 Nd4 Rc4 Bf5 c8Q Bef2 Qcc5 Bc8 Qcc6 Ndf3 Bh8 Rdc2 Qcc7 d2 Qg4 Bb6 Qh4 Rcb2 Bf6 Bc2 Bg7 d1R Qf6 Rd7 Rcc3 Nd4 Bd3 Bd1 Bg5 Rd2 Qcf4 Rd6 Rc7
4Q3/rrPQ3n/qP1B2N1/br3rNk/BQ1Pnbb1/3p4/q2r4/1B1N1K2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 a4 gxh4 axb5 f5 exf5 c4 b4 d5 g4 Qc7 Rh3 Qd8 Rd3 Na6 c3 Nb8 Ra2 Nd7 Rc2 cxd3 c4 Nb8 c5 Nc6 Rc3 Nb8 Rc4 dxc4 f4 Kf7 c6 e5 g5 h5 f6 Kg6 b6 a5 f7 e4 c7 e3 b5 e2 b7 h3 b6 h4 f5+ Kh5 g6 a4 f6 c3 g7 h2 Kf2 h1R Nh3 c2 Bd2 c1B Ke1 a3 Kf2 a2 Ng1 a1Q Qe1 h3 Bg5 h2 Qb4 e1R Nh3 Re2+ Kg3 Qa2 Nc3 Ra7 Nd1 Rd2 Bf4 Na6 b8Q Bg4 Bd6 Nc5 Bg2 Qc8 Ng5 Qca6 Qc8 Rf1 Qd7 h1R Bc6 Rf5 Ba4 Be7 f8N Rhh2 f7 Nf6 g8B Nh7 Ng6 Rh1 Nf2 Ne4+ Kg2 Rb5 f8Q Rf1 Bgb3 Rb7 Qg7 Ra8 Qh8 Raa7 Bc2 Bf8 Bb1 Bh6 Nh3 Bf4 Ng5 Bb2 Qhe8 Bc3 Qb3 Ba5 Qb2 Rc1 Qb4 Rcc5 Kf1 Rf5 Nd1
QK2N3/6n1/r2R1b1R/4nP1R/1Pn3Q1/P1r1r1Qp/b3NN1q/kq2q2n b - - 0 1 legal: proof: h4 a5 c4 d5 cxd5 g5 e4 gxh4 b3 f5 exf5 b5 Be2 a4 Bd3 a3 Bb2 axb2 Bc4 bxc4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 e5+ Ke4 Kc5 g4 Kb4 d4 c5 g5 c3 f6 c2 g6 c1R d6 h3 Kd5 e4 f5 c4 d7 h4 g7 c3 f7 c2 Na3 Kc3 b4 b1Q Ne2+ Kb2 Qd2 e3 Qd1 h2 Nb5 Nc6 a3 Ra6 Nbc3 Ne5 Ne4 Nc4 Nf2 Qc7 d8N Be7 f8Q Bf6 Nf7 Qf4 Nd6 Be6+ Kc5 Qg3 d5 Qg1 Nf4 e2 Qa8 e1Q Ne8 Rh5 d6 Rg5 d7 Rg3 d8R Re3 Rd6 h3 Ne2 Qg2 Rg1 h1N Qd3 Qh2 Rg6 Be7 Rh6 Nf6 g8Q Nh5 Kb5 Bf6 Qg4 Ng7 Rh5 Na5 Rb6 Ba2 Kc5 Nc4 Kc6 Rd1 Kb7 c1N Qd6 Nd3 Kb8 Rc1 Qdg3 Rc3 Re6 Nde5 Rb6 Qc2 Rd1 Qb1 Rdd6 Ka1 Rbc6 Bg5 Rdh6 Bf6 Rd6
qRRb2K1/2B5/1rrP4/b2Q1qRn/2p1B3/QQnp4/2P1Pb1q/4k1Br b - - 0 1 illegal: No proof kernel
7b/pQ1nP1n1/bB1Rn1P1/2kBq3/1RnR2np/1r6/Q6P/KbBq1Q2 b - - 0 1 legal: proof: e4 b5 d4 e5 f4 exd4 a4 c5 axb5 g5 e5 Na6 Nh3 Rb8 Nd2 Rb6 f5 Re6 Nf4 gxf4 Nb3 d3 Nd4 cxd4 fxe6 Qe7 Qg4 Qf6 Qd1 Qd8 Kd2 Ke7 b4 d5 c4 f5 g4 h5 c5 h4 b6 f3 b7 f2 b8Q f4 g5 f3 c6 Nf6 g6 Nd7 b5 Qc7 b6 Bg7 b7 Nac5 Bh3 f1N+ Ke1 d2+ Kf2 d3 Qb3 d1N+ Ke1 d4 Rb1 Nde3 Bg2 Nf5 Kd1 f2 Bd5 d2 Kc2 d1N Qa2 Nde3+ Kb2 d3 Ka1 d2 Rb4 d1Q Rd4 Qa5 c7 Nc4 Qa8 Rg8 b8B Ba6 c8Q Bh8 Qab7 N1e3 Bc7 f1B Bb6 Bd3 Re1 Ng4 Ree4 Rf8 Qcc6 Rg8 Qb5 Bb1 Rf4 Ng7 Rfe4 Nd6 Qf1 Rb8 Rb4 Nc4 Rd4 Ke8 e7 Nce6 Bd8 Ndf8 Bc7 Kd7 e8R Qc5 Rc8 Ke7 Rd8 Nd7 Qa8 Rb6 Qb7 Rb5 Bb6 Qd6 Ra4 Rb3 Rb4 Nf8 Rc8 Qb8 e6 Kd6 e7 Nfe6 Bc7+ Kc5 Rd8 Ndf6 Ba5 Qe5 Rd6 Nd7 Bb6+
R1qr4/4rnr1/1qP3R1/5pQQ/3Qp2P/P1RnKp2/1nb1N2b/2N2k1N b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 a6 b4 a5 Bb2 exf4 Bd3 Kd7 bxa5 c5 e5 Ke8 Be4 dxe4 Ba3 Qg5 Bb4 cxb4 Ne2 Qf6 Ng1 Qd8 Kf2 Ke7 h4 Ke6 d4 Kd5 a6 Kc4 d5 f5 h6 g5 c3 b5 a3 b3 e6 f3 h7 b2 a7 g4 e7 g3+ Ke3 b4 e8Q g2 d6 b3 d7 Nh6 Qe7 Nf7 Qe1 Na6 Nh3 g1R Qf6 Nc5 Qg5 Nd3 Qd2 Ba6 Nf2 Qc8 d8N Bd6 Nc6 Bh2 Nd4 Re8 h8Q Re7 Ne2 Rg3 Qgh5 Rg7 Rc1 Bb5 Rc2 Ba4 Nh1 Nde5 Q8h6 Qg8 Neg3 Rb8 Kf4 Qh8 Qf2 Kd3 Nd2 b1N a8R b2 c4 Nc3 c5 b1Q c6 Qb6 Rg1 Nd1 Nb3 Nb2 Rc4 Rbg8 Qc5 Rf8 Nc1+ Kd2 Rg2+ Ke1 Qd4 Bc2 Rc3 Ned3+ Ke3 Rfe8 Nge2 Kf1 Rg6 Rc8 Qg4 Qhd8 Qhf4 Qdc7 Qfg3 Rd8 Qh5 Qc8 Qgg5
QR2r1Rb/bq4r1/1QPP2pR/5Nq1/p2Np3/4r3/b3p1Pn/KN1k3Q b - - 0 1 illegal: No possible last move
nN1N1N2/1q3Q1q/1nQn4/1pKb1r2/pR5R/2P5/Ppkp3P/2bnQ2R b - - 0 1 legal: proof: d4 b5 e4 g5 g4 h5 f4 e5 fxe5 a5 d5 Ke7 e6 Kd6 Bf4+ Kc5 Be2 gxf4 e5 Kb6 g5 c5 b4 cxb4 Bg4 hxg4 e7 Ra6 Nf3 Kb7 Ng1 Re6 dxe6 Kc6 Ke2 Kc5 Kd3 f5 e8Q d5 g6 f3 g7 a4 e7 g3 c3 g2 e6 b3 Qd2 b2 Qe2 f2 Qc2 f1N Qg6 d4 e8Q f4 e7 f3 Qe6 f2 Qc1 Ng3 Qf5+ Qd5 Qf3 f1N Ne2 g1Q Qff7 Na6 Qe1 Bb7 Qef2 Rh5 Qe1 Ne4 Nf4 Ne3 Ng6 Nc7 Na3 Nd1 Nc4 Rf5 Nce5 Nd6 Nc6 Na8 Nb8 Nf6 g8R Bh6 Rh8 Nd7 Nf8 Bc1 Rh4 Qg8 Rg1 Qc6 Rgg4 Ndb6 Qc8 Qc7 e8N Qh7 Ng7 Bd5 Qce8 Qb7 Rf4 Bg2 Nge6+ Kd5 Nd8+ Kc5 Ke2 Bd5 Qe4 Kc4 Kf3 Be6 Qc6+ Kd3 Rb1 Kc2 Ra1 Ndc8 Ke4 d3 Kd4 Bd5 Kc5 Nd6 Rb4 Ne3 Qg3 Bd2 Rg1 Nd1 Rf1 Bc1 Rh1 d2 Qe1
2n1kq2/R1q1np1N/Rq1rP1bp/2R4N/2nN1Pp1/2Q4Q/K1Q2bPr/5n2 b - - 0 1 illegal: No proof kernel
k1Kn3b/3pB3/1Q1PPQ2/r2br1NN/3pB3/pr2p3/PQ3N2/1rnBbq2 b - - 0 1 legal: proof: d4 e5 b4 c5 bxc5 h5 e4 f6 g4 hxg4 h4 Ke7 d5 Kf7 Na3 Ke8 Rh3 Ke7 Rd3 Ke8 Rd4 exd4 e5 f5 Rb1 Qg5 Rb3 Qf6 Re3 Qd8 Re4 fxe4 Ke2 b5 f4 a5 c4 g5 c6 g3 c5 a4 c7 g4 f5 g2 c6 b4 f6 b3 h5 b2 d6 b1R h6 g3 h7 Ra5 e6 Ra1 Nc4 a3 Ne5 Ra8 Ng6 Na6 Qb3 Ne7 Qb2 Bb7 c8B Nc5 c7 Ra5 Nh3 g1B Bg5 g2 Ngf4 e3 Nh5 Nb3 Kd3 Bf2 Kc4 g1R Be2 Nc1 Bd1 Rb1 Bh4 Bf3 Bb7 Nc6 Ba8 Rhg8 h8Q Be1 c8Q Bg7 Qa6 Rgg5 Bb7 Qb6 f7+ Kd8 f8N Bg2 Qab5 Qa6 Nh7 Be5 Ba8 Kc8 Kc5 Rf5 Bb7+ Kb8 Nf2 Ka7 Bg5 Rb8 Be7 Nd8 Ng5 Bf3 Qh6 Bh8+ Bd5 Re5 Qf6 Ra4 Qa5 Rb3 Qb4 Qf1 Qa5+ Kb8 Qa6 Bb4+ Kb6 Be1+ Qb5 Ra5 Qb4 Be2 Bc6 Bc4 Be4 Bd5 Qb5 Ka8 Kc7 Rd3 Kc8 Rb3 Qb6
5rn1/1Pr2P2/qbQnPq2/2b2Q1q/BN6/R5K1/nqB2n1B/1kB4B b - - 0 1 legal: proof: h4 c5 e4 e5 b4 b5 a4 g5 hxg5 f6 axb5 c4 d4 cxd3 Nd2 Ke7 Ra6 Ke8 Rd6 f5 Rd4 exd4 e5 Nc6 Ne4 fxe4 Qe2 Nb8 Qg4 Nf6 Qd1 Ng8 f4 Ke7 Kf2 Ke6 c4 Kf5 c5 a5 c6 h5 g3 d5 g6 e3+ Kg2 Ke4 c7 d2 g4 a4 f5 d3 f6 e2 b6 e1B b7 a3 b5 h4 g5 d4 g7 a2 b6 a1Q f7 h3+ Kh2 Nd7 b8B Bf2 b7 Nb6 g6 Qb2 Qa4 d1Q Qb3 d2 Qg3 d3 Nf3 B8c5 Ne1 Qe2 Nc2 d1N Qg5 d2 Bg2+ Kd3 Nb4+ Kc3 Bf3 Qa6 Qf5 Qf6 e6 Nc4 Bd5 Bd7 c8Q Ba4 Qc6 Bc2 Be4 Bfd4 Kg3 h2 Rf1 h1Q Rf3+ Be3 Bd6 Rf8 Bd5 Nh6 g8B Nf2 g7 d1N Bh7 Qh5 g8B Rc8 Bg6 Rc7 B8h7 Rf8 Bf4 Nd6 Be4 Qh1 Bh5 Ng8 Bg4 Qh5 Bd5 Ne8 Bb3 Nd6 Ba4 Kc4 Bg6 Nc3 Be5 Bd4 Re3 Na2 Ra3 Be3 Bd1 Bd4 Qd7 Bb6 Qc6+ Bdc5 Bef4 Qh6 Bgh5 Qh7 Bhf3 Qh5 Bh1 Kd4 Bb3 Kc3 Ba4+ Qb3 Bce3 Kb2 Be5+ Kb1 Bf4 Nd3 Bg1 Qbb2 Bh2 Nf2 Bg5 Ng4 Bc1 Nf2 Bdxc2+
5B1Q/Q1b5/3qrP2/1K1PbbQ1/1P1b4/1N6/rkr2QnR/1Nb2Qrb b - - 0 1 legal: proof: e4 h5 g4 hxg4 f4 a5 c4 f5 a4 b5 e5 d5 cxd5 Ba6 Bg2 Bc8 Be4 fxe4 f5 Nd7 b3 Ndf6 exf6 Ra6 Ra3 Ra8 axb5 a4 b4 Rh3 Rd3 Rh8 Rb3 axb3 Ke2 Kd7 d4 Kd6 h4 g5 b6 c5 f7 e5 h5 g3 f6 b2 b7 g2 h6 g4 h7 g3 Qd2 c4 Nh3 g1B Qc3 g2 Qa3 c3 Qa7 c2 Bh6 c1B Qa4 e3 Kd3 e4+ Kc4 e2 Qa2 e1R Nf2 e3 Qa7 e2 Qa5 Bf5 Nd2 b1B Qa3 Ne7 Rh2 Bbe4 Qa1 Ng6 Qa5 Nh4 Nb3 Be7 Qb5 Ra2 f8Q Qd7 Qa8 Bd8 b8Q+ Bc7 Qba7 Rc8 Nd1 Bf2 h8Q g1R Qg7 Bh1 Nc3 Ng2 Qg5 Bg3 Nb1 Be5 Q8b8 Bg3 Qg4 Re8 Qf3 Re6 Qg8 Bgf4 Qg5 Ref1 Bg7 e1B Bf8+ Qe7 Qfg3 Rff2 Q3h4 Bc3 Qh8 Rfc2 Qbb6+ Kd7 d6 Be5 Kc5 Qd8 Qba6 Qe7 Qe2 Qd8 Kc4 Kc6 d7 Qe7 Qf1 Kd6 Kb5 Kd5 d8Q+ Ke4 Qe1+ Kd3 Qd5 Qd6 Qdc5 B3b2 d5 Ba1 Qcf2 Bad4 N1d2 Kc3 Nb1+ Kb2 Qef1
4qb1R/3B1N1Q/n1q1B3/B7/Pb1Pkr2/bPr2bBq/4b3/Kn2QB1r b - - 0 1 legal: proof: f4 a5 h4 d5 c4 g5 hxg5 e5 cxd5 exf4 Rh2 a4 Rh4 Nf6 Rh1 Ng8 b3 a3 Nc3 Ra4 Rb1 Ra7 Rb2 axb2 a4 Ra8 Nb1 b5 Na3 b4 Rh4 bxa3 Rh5 Ba6 Rh1 Bc8 e4 Kd7 d4 Kd6 Kd2 b1R Kc2 h5 g4 f5 g6 c5 g5 f3 g7 c4 g6 f4 Bb2 f2 Qd3 h4 Kc3 a2 Ne2 a1B Qh3 f3 Qf5 h3 Nc1 h2 Qh3 Rh4 Be2 f1Q Qg4 f2 Qg1 Qh3+ Nd3 Ne7 g8B f1B g7 Bb7 Be6 Rf4 g8Q Na6 Qh7 Qe8 Qe3 Rd8 Ne5 Rc8 Bd3 Rd1 Qe1 Be2 Kc2 c3 Bc1 Bc6 Kb1 c2+ Ka2 Bc3 Nf7+ Kc7 e5 Bb4 Be3 c1B Bf2 Bca3 d6+ Kb6 d7 Bcf3 d8B+ Kc6 Bh4 Nd5 Ba5 Rc1 Bg3 Rb1 Rf1 h1Q Rf2 Rc1 Rh2 Rc3 Ka1 Rc7 Qb1 Rc1 Bc4 Nc3 Bd3 Rg1 Qe1 Nb1 Bdc4 Bd1 Bf1 Bde2 Bd7+ Kd5 e6 Q1g2 e7 Rh1 Bf5 Rc3 Bd7 Qf5 Be6+ Ke4 Rh4 Qh3 Rh5 Qc6 e8B Qg6 B8d7 Rf6 Qg8 Rf4 Rh8 Qgh5 Qg7 Qhb5 Qh6 Qb8 Qg7 Qe8 Qh7+
4Qbn1/2Nr2Qr/Kn2R2q/4R1P1/PQ1r1kb1/rnQ3q1/5nBP/Q5b1 b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 h6 f5 Ra7 Bb2 Ra8 Be5 Kd7 Bf4 Ke8 Nc3 gxf4 Ne4 h5 g5 Kf7 Nf2 Ke8 Ng4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 c5 f7 f3 d4+ Kf4 d6 e5 f6 b3 a3 f2 d7 e4 d5 e3 d6 e2 Qd5 e1N Qd1 c4 Qd3 g3 Qg6 c3 Qh6 g2 Qh5 b2 Rb1 c2 Bc4 c1N Bf1 Qc7 d8Q Nb3 d7 Nd3 Qd1 Rh7 Nf3 g1B Bg2 f1Q Nd4 Nf2+ Qd3 b6 Re1 b1R Qe8 Rd1 d8Q Bg4 Re6 Nd7 a4 Ra7 Qb8 Qe1 Qc2 Qd6 Qc3 Rb7 Ka6 b5+ Qc6 b4 Nb5 Nb6 Nc7 Rd3 Qc3 Rd4 Qbc8 Qe3 Qa1 Qg3 Re5 Na5 Re6 b3 Re5 b2 Re6 Be7 f8Q b1R f7 Rb3 Qg7 Ra3 Re5 Nb3 f8Q+ Qf6 Re6 Bb4 Qc5 Qh6 Qb8 Nh3 Qcc3 Bf8 Re5 Be3 Re1 Bg1 R1e2 Nf2 Re6 Nf6 R2e5 Ng8 Nb5 Rbd7 Nc7 Nc8 Qb5 Nb6 Qbb4
1r2n2q/Kpn3Br/1B2bPP1/1P6/2r2q2/1rq2r2/BQQbR3/k1BB2N1 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 e4 f5 b5 fxe4 Na3 d4 Rb1 d3 hxg5 Nh6 Rb4 axb4 cxd3 bxa3 d4 Ng8 d5 Bh3 Qc2 Be6 Qd1 Bc8 Ke2 Kf7 Ke3 e5 g4 h5 d4 c5 f4 a2 f5 a1Q g6+ Kf6 a5 h4 d6 h3 d5 h2 d7 c4 a6 c3 a7 c2 d6 Bh6+ Ke2 e3 Kd3 e4+ Kc4 Ke5 Kc5 e2 g7 e1Q g5 e3 g6 e2 Be3 c1R+ Qc2 Qa4 Bg2 Qf4 Bf3 Rh7 Bg2 Nf6 g8B Ne8 Bf3 Qc3+ Bc4 e1R Bd1 Rf1 Bd2 Qdh4 Kb6 Kd4 d8B Rf3 d7 Na6 Ba2 Rb8 a8Q Nac7 Ka7 Rb1 f6 Rb3 Be7 Bg5 d8B Be6 Bb4 Qh6 Ba3 Qg7 Bdc1 Qh8 Bf8 Kc4 Bh6 Kb4 Be3 Ka3 Bg7 Bh6 Nh3 Bg5 Re1 h1R Ng1 R1h4 Re2 Bh6 Bd2 Bg5 Qd3 Kb2 Qc2+ Ka1 Bc1 Nd5 Bb6 Ndc7 Nh3 Qd6 Ng1 Bd2 Qf5 Rc4 Qc5 Rd8 Qc8 Qf4 Qa3 Bf7 Qf5 Rb8 Qc2 Be6 Qab2+
1q2Qb1r/8/1pbQ1KP1/R3QQ2/n3bb1n/N1P1QB2/kqn2PR1/1q2r3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 g5 dxc5 f5 exf5 Ra7 h5 Ra8 g4 h6 Bb2 Ra4 Bf6 Ra6 Nd2 Ra7 Ndf3 Ra6 Nh4 gxh4 g5 Ra7 g6 Ra8 Bg5 hxg5 Kd2 e5 Kd3 Ke7 Ke4 d5+ Kf3 g4+ Ke3 e4 Kd4 h3 Ke5 d4 a4 g3 c6 g2 h6 b3 a5 b6 c3 b2 c7 b1Q h7 h2 a6 e3 a7 d3 Be2 d2 Qa4 d1Q Qc4 Qb2 Bh5 e2 Qd5 e1N Ra2 Nh6 Bg4 Bd7 c8Q Nc2 Be2 Bc6 Bf3 Qdb1 Qd2 Na6 Ra5 Nc5 Ne2 Na4 Rg1 h1B Qe3 Rb8 a8Q Rb7 Rd1 g1B Nd4 Bg2 Nb5 Bh2+ Qf4 Rd7 Rg1 Rd1 Na3 Bh1 Rg3 Re1+ Qe3 Bg2 Qcb8 Kd7 f6 Nf5 f7 Nh4 Qc8+ Ke7 Qf5 Qc8 Kf4+ Kd6 Kg5 Qb8 Kf6 Bh1 Rg1 Bf4 Rg2 Qc7 Qae8 Qb8 Qg4 Be4 Nb5+ Kd5 Qf5+ Kc4 Na3+ Kb3 Qee5 B8h6 f8Q Ka2 Qfd6 Bf8 Qe8 Rg8 h8Q Bc6 Qh7 Rh8 Qhe7 Be4 Qee5 Bc6 Rg3 Be4 Bd1 Bhf3 Rg2 Bc6 Be2 Bfe4 Bf3
kn1Q4/4K3/1n3rP1/pb1qn1Nr/4R3/1P2r1rp/Qb2P2Q/1N1BQQ1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Ke7 h5 Ke8 Ra3 h6 g4 Nc6 Rah3 Nb8 Rh4 gxh4 g5 Kd7 g6 Bc5 b3 Ba3 Bb2 Bf8 Bf6 Ke8 Bg5 hxg5 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 c5 d4 Kc7 b6+ Kb7 h6 g4 d6 f3 h7 c4 d5 c3 d7 h3 Ke6 f2 d6 g3 Na3 f4 Nb1 g2 Qd4 c2 Kf7 c1N Qc3 Bg7 Qe1 Nd3 Nf3 g1R Ng5 f3 Bg2 Ne7 Qf1 Re8 h8Q Nd5 Qh4 Re3 Qa4 Bc3 Qa2 Bb2 Qe1 f1R Rh2 f2 Be4 Bc3 Rg2 Bb2 Rg4 Rgg3 Bf5 Ra6 Re4 Rh1 Ke6 Ka8 b7+ Ka7 Qf1 Nb6 Qe1 Qg8+ Ke7 f1R d8Q Qd5 d7 Ne5 Qf8 Rf2 d8Q Bd7 Bg4 Rfg2 Qff1 Bb5 Bf5 Rf2 Rf4 Rff3 Bc2 Rf2 Re4 Rf5 Ne6 Rh5 Ng5 Nbc4 Bd1 Rf6 Qg2 Nb6 Qgg1 Bc6 Qgf1 Bb5 Rd4 N8d7 Qg8 Qc6 Qd5 Kb8 Qdg2 Ka7 Re4 Qd5 b8Q+ Ka6 Qd8 Kb7 Nf7 Nb8 Ng5 Ka8 Qh2
3n1qNK/r2r4/Npr3B1/5b1n/QN2Q1P1/p2NR2P/b5nP/2rkbN2 b - - 0 1 illegal: No proof kernel
1R1Q2Q1/kqP1n1rP/1N4Pr/5rQp/3Bb1bK/5b2/n1QN1pQb/1r6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 fxe5 Na6 d4 cxd4 g5 Nb8 h4 g6 b4 Qe7 Bh3 Qf6 Bg4 hxg4 h5 Qb6 h6 Qd8 Rh5 gxh5 Ra3 Bg7 Rh3 g3 Rh1 Bf8 c4 f5 e4 d5 c5 Kd7 e6+ Kc7 e5 Kb7 e7 a5 e8Q f4 e6 f3 c6+ Ka7 c7 g2 Kf2 a4 Kg3 a3 e7 f2 Nc3 a2 Kh4 a1R Be3 Nc6 Qe2 Bf5 Na4 Be4 Nf3 g1R Nb6 d3 Qg6 d4 e8Q d2 Qe7 d1B Qc2 d3 Bd4 Qb8 Nd2 Rb1 h7 Qb7 Qe5 Bd6 Qg3 Rd8 Qg2 Bg4 Rh3 Ra8 Rf3 Rd8 Rf8 Bh2 Qf5 Rd5 Rb8 Rd6 Qd5 Rh6 g6 Nge7 Qg5 Rgc1 Qb2 Rc5 Qc2 Rg8 Nd5 Rg7 b6+ Ka6 b5+ Ka5 Qe5 Nb4 Qg5 Qc6 b7 Na2 b6 Ka6 Rc8 Ra5 b8Q Qb7 Rg8 Rab5 Qd8 Rc5 Nf6 Rf5 Nd7 Qc8 b7 Bgf3 b8Q Qb7 Nb3 d2 Nb6 d1B Nd2 Bg4 Qbc8 Ka7 Rf8 Bde2 Qe6 B2f3 Qg8 Rf6 Qdd5 Rff7 Rb8 Rf5 Qdd8
k1RRq1q1/q4Rn1/pR1p4/b5r1/1QP2rp1/5nB1/PR1PQK2/r4n1N b - - 0 2 legal: proof: f4 c5 g4 g5 b4 gxf4 bxc5 h5 g5 e6 Nc3 e5 Bh3 f3 Bg4 hxg4 Nd5 Bh6 Nf4 exf4 Bb2 Bg7 Bc1 Bf8 h4 f5 c4 b5 e4 f2+ Ke2 f1R h5 a6 h6 f3+ Ke3 f2 e5 f4+ Ke2 b4 g6 f3+ Ke3 b3 h7 b2 c6 b1Q g7 Qg6 e6 Nh6 e7 Rg8 c7 Nc6 h8Q Ne5 Qe2 d6 Rh4 Kd7 e8R Kc6 Bb2 Kb7 Nh3 Be7 Rb1 Ra7 Bd4+ Ka8 Rb2 Ra1 Bb6 f1N+ Kf2 Qd7 Rd8 Nf5 Rh7 Qde8 Bc5 Rf8 g8R Ng7 Be3 Rf5 Bf4 Rg5 Bg3 Qgf7 Rf8 Qg8 Rf7 Rb7 Rh5 Rb3 Qh7 Rd3 Qg6 Rd4 Qb1 Rf4 Rb6 Bf6 Qb4 Be7 Kg1 Bf6 Nf2 Be7 Nh1 f2+ Kg2 Nf3 Rh7 Bf6 Rh8 Bc3 Rh5 Rg6 Rhb5 Rg5 Qa5 Rh5 Rb2 Rg5 Qb5 Ba5 Qb4 N1h2 Bh4 f1Q+ Kg3 Qh3+ Kf2 Nf1 Bg3 Qhh7 Rdd7 Bb7 c8R+ Ka7 Rcc6 Ka8 Rd8+ Bc8 Rcc7 Qd3 Rc5 Qde3+ Kg2 Q3e7 Kf2 Qa7 Rcxc8+
3B1BB1/1RPpbq1r/2n2P2/8/k2QK1b1/nnBPp1p1/q3N3/bn1QB3 b - - 0 1 legal: proof: e4 c5 b4 f5 g4 fxe4 a4 b6 a5 Ba6 Ra4 Bb7 axb6 Ba6 b5 Bc8 Rb4 cxb4 f4 h5 g5 a5 f5 Ba6 Nc3 Bc8 Nd5 Ra7 Ne3 Rc7 Ng4 hxg4 Ke2 Rc6 Ke1 Rf6 gxf6 Rh5 Ne2 Rh4 Ng1 Rh8 Kf2 e5 Ke3 g5 c4 g3 h4 g4 h5 a4 c5 g2 c6 a3 b7 a2 c7 a1B h6 b3 h7 g3 d3 b2 f7+ Ke7 f6+ Kd6 b6 Kc5 Qb3 b1N Qd5+ Kb4 Ba3+ Ka4 Be7 Qe8 Ne2 Nc6 b8B Nh6 Bd8 Bb7 Ba7 Be7 f8B Qf7 Rh2 Ba8 b7 g1Q+ Rf2 Qh1 b8B Qh2 Bd4 Qg2 Bc3 Bb7 Nc1 Ba8 Rf5 Qa2 Bg2 Bb7 Rf2 Ba8 Rb2 Nf5+ Ke2 e3 Kf3 e2 Ke4 e1N Ba7 Nfd4 Ne2 Nec2 Rb7 Nb3 Bf2 Nca3 Bfe1 Rg8 h8Q Rg7 Qh1 Rh7 Kf5 e4 Qd4+ Nb4 Qf1 e3 Bh3 Rh5+ Ke4 Rh7 Qd6 Nc6 Be6 Nc1 Qh1 Nb3 Qd4+ Nb4 Bed2 Qh5 Kf4 Qh2 Qd1 Qh5 Rb8 Bf3 Be1 Bg4 Bg8 Qd5 Rb7 Qf7 Qd5 Nc6 Ke4 Bd6 Qc5 Be7 Qd4+
1b4Q1/2R1pPb1/P2nq3/RbnB1P2/pK1p2nN/2R2R2/7p/RQ1kr2r b - - 0 1 illegal: No possible last move, all moves rejected
5rQb/b1BNq1B1/B4P2/nr2p2B/1B2P2K/1n1pP3/pQ1pq2k/b1R5 b - - 0 1 legal: proof: g4 h5 a4 hxg4 d3 b5 axb5 c5 Qd2 c4 Ra2 c3 Ra1 Bb7 Qd1 Be4 dxe4 f5 b4 Rh5 Ra6 Qc7 Rd6 Rh6 Rd2 Rh5 Bg2 cxd2+ Kf1 Rh8 Bh3 Qc8 Kg2 Nh6 Kg3 Qd8 Bf1 Ng8 Kg2 Rh4 Qe1 Rh3 Qd1 Rh8 e3 f4 Nc3 f3+ Kg3 Qa5 Nce2 fxe2 Kg2 Qd8 Kg3 Kf7 f4 Kf6 c4 e1Q+ Kg2 d5 h4 g5 h5 a5 c5 g3 Kh3 a4 f5 a3 b6 a2 b7 g4+ Kh4 d4 h6 d3 b5 g2+ Kh5 g3 c6 Qe2+ Nf3 g1B h7 g2 c7 Bh2 c8B g1B b6 Nh6 Qe1 Bg7 Bb2+ Be5 Bg2 Rf8 h8Q Nc6 b8B Ra5 b7 Bh2 Qb1 Rb5 Bc7 Na5 Qg8 Bh8 b8B e6 Bf1 Qe7 Kh4 Bf4 Ba3 Ba1 Bb4 Bd6 Qc1 Bc5 Ba6 Ba7 Ne5 Qd8 Nc4 Qe7 Nb6 e5 Qb2 Nf7 Bd8 Ng5 Bbc7 Ne6 Bg2 Nc5 Bf3 Ncb3 Bh5 Bg7 Kg3 Kg5 Rc1 Qf1 Nd7 Qe1+ Kf3 Kh4 f6 Kh3 Bcd6 Rd5 B8c7 Kh2 Kg4 Qe2+ Kh4 Bh8 Bdc5 Qg7 Be7 Rb5 Bed6 Rd8 Bf8 Qe7 Bh6 Rf8 Bg7
r2k1bK1/1P1Q1r1B/3Q3p/1p1B2n1/rp2p3/3Rnr1B/P3P2q/2BNn1B1 b - - 0 1 illegal: No possible last move, all moves rejected
2n1BK1Q/p1N2p1q/n4Q2/1b1p2N1/1rq1QP1b/1rrq4/P1pP2Q1/1kR4Q b - - 0 3 illegal: No possible last move, all moves rejected
6qr/2PQppbp/1n2pr2/1Rbp1Pp1/nBN5/1B5Q/2b1Pk2/K2B1B1B b - - 0 1 illegal: No proof kernel
n3N1r1/2N2Q1R/N1k2Qb1/3Pq1P1/1b5K/P2Qp1BN/1n1qn1rn/q7 b - - 0 1 illegal: No possible last move
3N3r/3q2q1/1R1QB2q/1R1Q1PqP/K2Pp3/Qn2n1R1/qR3k2/4bbq1 b - - 0 1 legal: proof: f4 a5 b4 b5 e4 h5 c4 d5 cxd5 f5 a4 Kf7 g4 hxg4 e5 Rh3 Nc3 Rh5 Ne4 fxe4 f5 Ra6 Ba3 Rf6 exf6 Rh4 axb5 Rh5 b6 Rh8 b5 Ke8 Bb4 axb4 d4 Kf7 Kd2 e5 Kc2 g5 Kb3 c5 h4 e3 h5 e2 d6 e1Q b7 g3 b6 e4 d7 g2 Qe2 c4+ Ka4 b3 Qd3 b2 Ra2 b1Q Rb2 g4 Qg3 c3 Kb3 c2 Qh2 c1Q Nf3 g1Q Bd3 g3 Bb5 g2 Qg3 Ne7 Ba6 Qee3+ Kb4 Qg5 Bb5 Na6+ Ka4 Nd5 b8R Ne3 b7 Bb4 Qd6 Be1 Rh3 Qa2+ Qa3 Qe8 d8Q Qd7 Rg3 Qcc6 Qa5 Qcd6 Bc6 Q6e6 Qd5 Nc5+ Kb5 Nb3 Ka4 Qh1 Bb5 g1Q Bc6 Qhg2 Ne5+ Kg8 f7+ Kg7 f8R Qh6 Nf7 Kf6 Re8 Qgg7 Re5 Qd2 Nd8 Qc1 Rh3 Kg5 Rg3+ Kf4 Bb5 Qhg5 Re6 Qcc6 Re5 Qch6 Re6 Qdf7 Rb6 Be6 Bc4 Qd7+ Rb5 Bf7 Ra8 Bg8 Ra6 Be6 Rb6 Bg8 Rg4+ Kf3 b8Q Bf7 Qbd6 Be6 Be2+ Kf2 Rg3 Bg8 Qa8 Bc4 Qad5 Qb1 Bd1+ Be2 Bc2 Bf1 Bd3+ Qc2 Bc4 Qe2 Q5c5 Qd2 Be6 Qc2 Qcd5 Qe2 Rb1 Qa2 Rb2+
2q1nb1r/KB2r2q/1Pr1BQ1Q/3b1n2/bbN1B2P/6Q1/2P3Rb/n1k1B3 b - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 g5 axb5 e5 fxe5 Nc6 Ra3 Nb8 g4 Nh6 Nc3 Ng8 Nd5 h6 Nf4 gxf4 g5 h5 Rg3 Qc7 Rg2 Qd8 Rg4 hxg4 Kf2 Ke7 e4 Ke6 h4 d5 b6 f5 b7 a5 b5 a4 g6 a3 g7 f3 b6 a2 Bf4 a1B Qd2 d3 Ke3 g3 Bh6 f2 Qe1 f4+ Kf3 d2 Nh3 d1B+ Qe2 g2 Bg5 g1B Bf6 d4 Bg5 d3 Rh2 d2 Bh6 Ra7 Bg5 Bc3 Rg2 Na6 b8Q Bh2 Ng1 Nf6 g8B+ Rf7 Qc7 Ne8 Be7 Qd7 Bb4 Nc5 Qd8 Ba6 Ba5 Qc8 Qf6+ Kd7 e6+ Kc6 e5 Kd5 e7 Kd4 Bh7 Nb3 Be4 Na1 Qh6 Bc4 e6 Bb4 Bb7 Kc3 Ke4 Kb2 Qg4 f3 Bd3 f1R Qg3 f2 Nf3 Ba2 Ne5 Be2 Nc4+ Kc1 Kd5 Re1 Bg6 f1Q Be4 Rf3 Qf6 Rc3 Qh6 Qf7 Qf6 Qa8 Kc6 d1N Kb5 Qc8 Ka6 Bb3 Ka7 Qh7 Qh6+ Ne3 Qf6 Nc7 e8Q Bf3 e7 Ba4 Qh5 Nf5 e8B Ree3 Bf7 Ne8 Be6 Re2 Nd6 Rc6 Nc4 Re1 Bd3 Bd5 Be4 Rf1 Qhg5+ Rf4 Qgg6 Rg4 Qh5 Rg7 Qhg6 Re7 Qh5 Ba3 Be1 Bb4 Qhh6+
3rNn2/1KbP4/3Qb3/QQ1B3n/1r2RqNP/qNb1P3/kq2r1Qq/5n2 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b4 h6 Bb2 Qe7 Ra3 Qd8 Bf6 Rh7 Rf3 gxf3 g4 Be7 g5 Rh8 g6 Bf8 Bg5 hxg5 Kf2 Ke7 d4 Kd6 h4 f5 e3 c5 g7 a5 b6 a4 b7 a3 b5 g4 b6 a2 Qb3 a1B Qc2 g3+ Ke1 f2+ Kd2 c4 Ke2 g2 Kf3 c3 Na3 Nf6 g8Q Nh5 Qa4 c2 Nb1 c1Q Nh3 g1Q Bc4 f1N Nf2 Nd7 b8N Qh2 b7 Qa5 Na6 Qb2 Qg2 Rb8 Qb5 Qaa3 Nc7 Be7 Ng4 Rd8 Nd2 Nf8 Rg1 Be6 Nb3 Bf6 Nc5 Be5 Bb3 Qd2 Bc4 Bc3 Nb3 Qdb2 Qa5 Ra8 Qb5 Ra4 b8Q Rb4 Qa7 Ke7 Ne8+ Bc7 d6+ Kf7 d7 Ke7 Nef6 Kd6 Qba5 Kc6 Qb8 Kd6 Ne8+ Kc6 Bb5+ Kd5 Bc6+ Kc4 d5 Qb1 Kf2 f3 d6 f4 Qb7 Bd2 Qb8 Qbb2 Bd5+ Kc3 Qab5 Kc2 Qa7 Kb1 Qa8 Ka2 Qaa5 Nfg3 Rc1 Nf1 Rd1 Bc3+ Rd2 Rc8 d8Q Ra8 d7 Rc8 Qe7 Rd8 Ke1 f2+ Ke2 f3+ Kd3 Nfg3 Rc2 f1R Qd6 f2 Rc1 Re1 Rc2 Bg7 Rc4 Nf1 Ke4 Re2 Ba8 Bf5+ Kd5 Bc3 Kc6 Be6 Rd4 Nfg3 Rc4 f1Q Kb7 Qf4 Re4 Nf1 Ka6 Qa1 Bd5 Qb2 Kb7
1r1r2Bq/r2Pn1b1/1r4NR/PQ2N2Q/qk2b1Q1/n1b2N2/4r2P/3N1K1b b - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 axb4 e4 f5 exf5 g5 f4 Ra4 f6 Kf7 f5 Ke8 a3 Ra8 g4 h6 a4 Ra7 Bb2 Kf7 Be5 Ke8 Bf4 Ra8 Ra3 Bd7 Rg3 gxf4 g5 Be6 g6 Bc8 Rg5 hxg5 d4 Kd7 f7 Kd6 a5 b5 g7 c5 f6 e5 Qe2 c4 Bh3 g4 Nf3 c3 Na3 e4 Qe3 b3 Kf1 b2 Rg1 b1R+ Qc1 b4 Rg2 b3 Ng5 f3 Ne6 g3 Rb2 g2+ Ke1 g1Q+ Bf1 f2+ Ke2 c2 Nf4 e3 Nd3 Ra7 Qd1 c1B Ne5 Bb7 Nf3 Na6 Nc2 Ne7 g8Q Bd2 Qg4 Bg7 f8Q Nc7 f7 Bc3 Qe8 Nb5 f8N Na3 Ng6 Qb8 Qb5 Rd8 Bh3 f1R Qh5 Qa8 Be6 Qg4 Bg8 Rh1 Qg1 Rb8 Qg2 Rhd1 Qgh3 Qd7 Q3g4 Bc6 Nce1 Bb7 Kf1 Qc6 Rg2 b2 Rg3 Rd2 Rh3 Re2 Rh4 Qc4 Rh3 Qa4 Rh4 Rd1 Rh3 Rdd2 Nd3 b1B Nf2 Be4 Nd1 Rb2 Qhf5 Red2 Rh6 Rd3 Qfh5 e2+ Kf2 Rb4 Kg1 e1R+ Kf2 Re2+ Kf1 Kc7 d6+ Kd8 d7 Kc7 d8N Kd6 Qbg5 Rb6 d5 Kc5 d6+ Kb4 Nf7 Bc6 Nd4 Bh1 Nf3+ Be4 Qd5 Qb7 N7e5 Qc8 Bh7 Qh8 Bg8 Rd8 d7 Rbb8 Qa2 Rd6 Qd5 Rdb6 Qb5+
nk1Nn3/2b1QQ1r/2r2bBb/6PP/3r2P1/q1q1q1N1/b1qQN1K1/R3Q3 b - - 0 1 legal: proof: b4 b5 f4 c5 d4 cxd4 g4 g5 fxg5 h5 Bf4 h4 Bg3 hxg3 a4 e5 Ra3 e4 Rd3 exd3 axb5 Qf6 Qd2 Qb6 Qd1 Qd8 h4 d5 c4 Kd7 e4 Kc7 e5 f5 c5 a5 e6 d2+ Ke2 a4 Kf3 d3 c6 g2 h5 f4 e7 d4 e8Q a3 Qee2 a2 Qf2 a1B Qc2 d1Q+ Qfe2 d2 Qb2 d3 Na3 Qe8 Qc1 Qb3 Qc2 d1R Qc5 d2+ Qce3 Na6 Nc4 Nf6 Nd6 Rh7 Nf5 Bh6 Ng3 Be6 b6+ Kc8 c7 Qa3 b5 Ba2 Kf2 f3 Qc4 Qe5 Bd3 Ne8 Bg6 Rc1 Qcb3 d1Q Qd2 Rc6 Qf7 Kb7 c8N+ Nac7 N1e2 Ra4 Nd6+ Ka8 Rf1 Qc2 b7+ Ka7 Re1 Na8 Rc1 Bb2 Ra1 Qf6 Kg1 f2+ Kh2 Be5 Kh3 g1B Kg2 Bf4 b6+ Ka6 b8Q Qfc3 Nc4 Bc7 Qbd8 Kb7 Qde7 Kc8 Na5 Bh2 Nf1 Rd4 Nb7 Bhe5 Nd8 Bf6 b7+ Kb8 Nfg3 Ka7 Qde3 f1Q+ Kh2 Qf4 b8Q+ Ka6 Qd2 Qfe3 Qb1 Ka7 Qbe1 Kb8 Kg2
B3r2N/4pnq1/2n2brQ/q2Q1nN1/4b3/2RrkQ1P/1Pq2NPp/2N2K2 b - - 0 1 illegal: No proof kernel
1k1N1nn1/rr2r1Qq/4Qb1b/1R1NpQ2/1P1Pr2P/p2b2Nn/6BK/4Q3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 g4 h6 b4 Nf6 Ra3 Bd7 Rf3 Bc8 Rf4 Ng8 Bb2 Bg7 Bf6 gxf4 g5 Bf8 g6 Be6 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 Kg2 a5 h4 e5 d4 c5 d6 a4 f6 f3+ Kh2 a3 b6 e3 g7 g4 f7 c4 b7 e2 Qd3 e1R Be2 c3 Qe4 c2 Bd1 c1B Qe2 g3+ Kh3 f2 Bc2 f1R Qe4 g2 Nc3 Qe7 Nd5 Bg5 Kh2 Rh7 Ne2 g1N Ng3 Bf6 Ba4+ Kd8 d7 Ra7 Bc6 Nh3 Qb1 Re4 Qe1 Rff4 Rg1 Rf2+ Rg2 Rff4 Rc2 Rg4 Rc5 Rg6 Ne3 Kc7 d8N Bf5 Rb5 Nd7 Nd5+ Kb8 Qd2 Nh6 g8Q Rgg7 Qh8 Ng8 Qe1 Rh5 Qh6 Rh7 Qf4 Bh6 f8Q Rg5 Qf7 Rgg7 Qe6 Nf8 Qff2 Qc7 Qff1 Bg6 Qff5 Re7 Nf4 Re3 Bg2 Re4 Nd5 Rg4 Qf4 Bd3 Qff5 Re4 Qf7 Re8 Q7e6 Qg7 Nb6 Kc7 Qg5 Qh8 Qef5 Rd7 Qg7 Qh7 Nd5+ Kd6 Qf4 Ree7 b8Q+ Rdc7 Qff2 Kd7 Qb6 Kc8 Qf4 Rcb7 Qf5+ Kb8 Qbe6
4n3/2q1QB1Q/3NQ3/2PKQ1p1/P1rPr1rp/5n2/2rbkR2/nN2Nq1b b - - 0 1 illegal: No possible last move, all moves rejected
2K5/1RQQ1b2/3p3R/n2q3R/1qNPpQ2/b3nBP1/4Pb1r/1rrkr2R b - - 0 1 legal: proof: b4 a5 a4 b5 axb5 g5 f4 gxf4 Ba3 c5 bxc5 Bb7 Kf2 Ba6 Ke1 Bc8 Bb4 axb4 Nc3 h5 Ne4 h4 Ng3 Nf6 Nf5 Ng8 g3 h3 Nh4 Qa5 Ng2 hxg2 Ra4 Qb6 Ra1 Qd8 Kf2 f5 Kf3 Kf7 c4 Kg6 h4 e5 d4 b3 c6 b2 c5 b1Q b6 Nf6 b7 Qb4 c7 Nd5 c6 Ne3 Rc1 Ra1 Qe1 Rb1 h5+ Kg5 h6 e4+ Kf2 Kg4 h7 f3 Rh6 f4 Qd2 Qg5 Rc5 Qd5 Ra5 Bc5 Ra1 d6 Rh5 Rg8 h8R Be6 R8h6 Rh8 c8Q Re1 c7 Nc6 b8Q Na5 Qd7 Rb1 c8R Rh7 Rf5 Bf7 Qbc7 Rc1 Rh8 Rb1 Rh1 Rh2 Rh6 Re1 Nh3 Rb1 Ng5 Re1 Ra2 Rc1 Rc2 Rb1 Rc1 g1B+ Ke1 Qb2 Qa7 Ba3 Bg2 Nd1 Rc7 Qb4 Qc5 Be3 Qcc3 Bg1 Qdc1 f2+ Kd2 f1R Nf3 Be3+ Kc2 Rg1 Nd2 f3 Qcc6 f2 Nc4 f1R Rfh5+ Qf5 Ra7 Bf2 Qcc7 Qe6 Rf5 Qd5 Qe3 Bh5 Bf3+ Kh3 Qc1 Nb7 Qf4 Na5 Bg4+ Kg2 Rg5 Bf7 Rgh5 Qbb7 Kd2 Ne3 Kc3 Rfd1 Bf3+ Kf1 Qb5 Bb2+ Kb4 Ke1 Ka4 Rdc1 Qbc6 Qb8 Q6d7 Qh8 Kb4 Kd1 Ka4 Re1 Kb4 Qe6 Kb5 Ba3+ Ka6 Qhe5 Bg2 Qc5 Bf3 Nb3 Kb7 Na5+ Kc8 Qed5 Rb7 Qb6 Qb8 Qb4 Qbc7
Nqq1NKNr/7P/r3QbQ1/1BP5/Q6b/p3pp1n/2n1PN1R/k2n1q2 b - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 g5 f3 e5 a3 e4 Bf4 h6 a4 b5 axb5 e3 Ra6 Bb7 Rd6 Be4 fxe4 Qc8 Rd5 gxf4 g5 Qc7 g6 Qd8 Rg5 hxg5 c4 Ke7 h4 Ke6 c5 Ke5 g7 f5 h5 d5 h6 a5 b6 a4 b5 a3 b7 d3 b6 Kd4 e5 g4 h7 f3 e6 g3 e7 f4 e8N g2 Rh4 Nh6 g8N Nc6 b8Q Be7 b7 Ng4 Qc8 Nf2 b8Q Bf6 Qc2 Ra6 Qa4+ Nb4 Qb6 Nh3 Qce6 f2+ Kd1 d2 Nc3 Qb8 Nb5+ Kc4 Nbc7 Kc3 Rh5 Kb2 Na8 f3 Rh6 d4 Qbc6 Nf4 Rh2 Nc2 Nh3 g1B Qce4 Ka1 Qg6 Ne1 Bg2 f1Q Nf2 Qc8 Bh3 Qb8 Bg4 Nh3 Bf5 Qc8 Bd3 Qb8 Ne4 Bf2 Bb5 B2h4 Nf2 Ng2+ Kc2 d1N Kd3 Ne1+ Kc4 d3 Kd5 d2 Qb6 Nc2 Ke6 Nc3 Kf7 d1Q Ne4 Qd7+ Kf8 Qdc8 Qe6 Nd1 Nf2
1n2n2R/1R1Qb2k/Qp1P1p2/B1Rr2pr/2nNq1Q1/nK4Pr/6RP/4b3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 h5 g3 a5 Nf3 axb4 Ng1 h4 Bg2 h3 Qb3 hxg2 Qa4+ Bd7 Qd1 Bc8 e4 Nc6 d4 Bh3 d6 Nge7 d5 Kd7 Nd2 Ng8 Ndf3 Nb8 Nd4 exd4 e5 Bf5 f3 Be4 fxe4 Ke8 Kd2 c5 Kc2 g5 a4 d3+ Kb3 d2 a5 b6 e6 c4+ Ka4 b3 e7 b2 e5 b1N a6 c3 a7 c2 Kb3 Na3 Qg4 d1R Bd2 c1B Nf3 g1N Nd4 Rh5 Ra2 Nf3 Ba5 Nf6 Rg2 Bd2 Rf1 Be1 Rff2 Bc3 Rc2 Be1 Rc5 Qc8 Rgc2 Qf5 Rg2 Kd7 e8R Be7 Rec8 Ne8 R8c7+ Kd8 d7 f6 e6 Ne5 Rb7 Qe4 Qf5 Nec4 Qf4 Bd6 Qg4 Ke7 d8Q+ Kf8 e7+ Kg7 Qc7 Kh7 Qcd7 Ng7 e8R Be7 Rec8 Ne8 d6 Rd2 Ne2 Rd5 Nd4 Nc7 Rf8 Ne8 Rh8+ Kg6 Ka4 Rh3 Rb5 Nc7 Rc8 Nc6 Rf8 Re8 a8Q Nb8 Qa6 Rc8 Rf7 Rch8 Kb3 Ne8 Rc5 R8h5 Rf8 Kh7 Rh8+
1BnNkr2/P1bP2Pr/q3p3/p4bp1/1R1n2n1/2KB4/QnBQ4/Br3Q2 b - - 0 1 illegal: No possible last move, all moves rejected
1q1r4/1bN5/2n1K1B1/PqBR1Qbp/1r2Q1bp/P1k2nP1/2p2BB1/Q4b2 b - - 0 1 legal: proof: d4 a5 c4 e5 b4 d5 bxa5 g5 cxd5 Ke7 h4 gxh4 d6+ Ke8 e4 f6 d5 Ra7 a3 Ra8 Nd2 Ne7 Rb1 Ng8 Rb4 f5 Rd4 exd4 e5 Qd7 Ne4 fxe4 Ba6 Qe7 Bf1 Qd8 Ke2 Kd7 f4 b5 f5 h5 f6 c5 g3 d3+ Ke3 d2 Kf4 c4 Kf5 c3 f7 e3 Qf3 d1B Be2 b4 Nh3 b3 Ng5 b2 Qf2 Nc6 Ne6 Be7 f8B Bg5 Nc7 Nf6 Bf3 e2 Be3 e1Q Bg2 b1B+ Qc2 Be2 Qe4 Bbd3 Bf2 Qb1 Rd1 c2 Rd2 Ng4 Rd1 Bca6 e6+ Kc8 d7+ Kb7 e7 Rb8 e8B Nh2 B8c5 Bg4+ Kg6 Nf3 Kf7 Qc8 d8Q Bf1 Qd7 Qb6 d6 Ka7 Bg1 Rb7 Bgf2 Qb8 Qdf5 Rg8 Bce3 Qc5 d7 Rb4 d8Q Bb7 Qdd4 Rh8 Ne6 Ka6 Qa1 Kb5 Rd5 Ka4 Nc7 Kb3 Bd4 Qb5 Ke6 Rg8 Bf7 Rd8 Bg6 Kc4 Bc5+ Kb3 Qa2+ Kc3 Qa1+
r5Rk/r4Qp1/P2Rb3/1ppQq2B/1PnP2r1/2RN1K2/nnRQ4/1r4q1 b - - 0 1 illegal: No possible last move, all moves rejected
3q4/1bQbprpn/1K3Q1Q/N1P2rn1/4k1p1/b4RPn/4Pp2/3QBR1R b - - 0 1 illegal: No proof kernel forced: wxDB
1k1rnNR1/1Rp5/1Q6/2P4r/BPP1KnrR/q3p1p1/QpQp4/4bn1Q b - - 0 1 illegal: No possible last move, all moves rejected
2Qq1kRq/4p2Q/np2Q3/p4pb1/Rp2PR1r/1P5B/K2P2r1/2br1NQ1 b - - 0 2 legal: proof: g4 g5 f4 gxf4 h4 b6 c4 Na6 b3 Nc5 a4 Ne4 a5 Ng5 hxg5 Bb7 a6 c6 axb7 c5 Ba3 d6 Bb4 cxb4 c5 d5 Na3 Qc8 Nc4 dxc4 Rh5 Qc7 Rh1 Qd8 b8R a5 e4 f5 g6 h5 g7 c3 c6 c2 g5 c1B c7 h4 c8Q h3 g6 h2 Ra4 f3 Bh3 Rh4 Ne2 Nf6 g8Q Nd7 g7 Nc5 Ng3 Na6 Qh7 Kf7 Rf1 h1Q g8Q+ Ke8 Qd5 Bh6 Qde6 f2+ Ke2 Bf4 Qe1 Be3 Kd1 Bg5 Kc2 Kf8 Kb1 Qh2 Ka2 Qh1 Rg1 f1R Qd1 Re1 Rf1 Qh2 Qg4 Rd1 Rf2 Qh1 Nf1 Qh2 Qg1 Qe5 Rb7 Qh8 Rf4 Rb8 Qcd7 Rc8 Rb8 Rc3 Qc8 Rg3 Rb7 Rg2 Rd7 Bb2 Rd3 Bc1 Rg3 Bf6 Rg7 Bg5 Rg8+
rn1b4/1p1n1ppK/1P5p/1q2pNR1/8/P1rk1pQP/1Q2R1QR/r2B3R b - - 0 2 legal: proof: d4 e5 e4 a5 f4 c5 dxc5 Ne7 g4 Ra6 b4 Ra8 b5 Ra6 g5 Ra8 Ba3 Ng8 Bb4 axb4 Bc4 exf4 e5 h6 e6 d6 e7 Bf5 Bf1 Kd7 Kd2 Be4 Ke1 Bh7 g6 Ra5 gxh7 Ra8 Na3 Ke6 Nc4 Ra5 Ne5 dxe5 Rb1 Ra3 Ra1 Ra8 Kf2 Kf5 Kf3 b3 e8Q b2 c4 b1R b6 Nd7 h3 Qg5 c6 Bb4 a3 Qd8 c5 Qc8 c7 Ba5 c6 Ndf6 Qd2 Nh5 Qb2 Qd8 c8Q+ Qd7 c7 Ne7 Be2 Qe6 Qc6 Re8 h8R Kf6 Ke4 Rf8 Nf3 Re8 Nh4 Qd6 Qg4 Rd1 c8R Rf8 Qf3 Kg5 Nf5 Qd7 Qd5 Rf1 Rc2 Rfc8 Rd8 Nc6 Qd2 Qe8 Kd5 Nb8 Kd6 Qb5 Ke7 Nf6 Kf8 Bc3 Qdd5 Bd2 Rh2 Rc3 Rd6 Nfd7+ Kg8 Be1 Kh7 Bh4 Qf2 Re1 Qh1 f3 Rg6+ Kf4 Qhg2 Ke4 Qfg3 Bd8 Rg5 Rd1 Rb1 Rd4 Rg1 Rd1 Rgh1 Ra1 Bd1 Kd3 Re2
2r2B2/kqq2n1b/1N3bp1/1p1pNQb1/1Pn3rb/1N4PN/1RrP1QQ1/3K4 b - - 1 3 legal: proof: f4 b5 b4 h5 g3 e5 Bg2 exf4 a4 h4 a5 h3 Ra3 hxg2 Rc3 Be7 Rc6 Bf8 Rb6 cxb6 axb6 Qh4 Nc3 Qf6 Nb1 Qd8 h4 f5 e4 a5 c4 d5 c5 Kd7 b7 Kc6 h5 a4 h6 f3 h7 a3 e5 f4 e6 f2+ Ke2 f1R e7 a2 e8Q+ Nd7 b8Q a1B Qf7 f3+ Kd3 f2 Kc2 Ra2+ Bb2 Be7 Qff3 Qc7 Qe1 Ne5 Kd1 Nh6 Nc3 Bf5 Na4 Rc8 h8N Nc4 Ng6 Bh4 Nh3 g1B Qg2 Nf7 Be5 Bc3 Bd6 Bcf6 Bf8 Rc2 Qa8+ Qb7 Ne5+ Kc7 c6 Bh7 Nc5 Kb6 c7 g6 Qa3 Bfg5 Qd3 Ka7 Qf5 Bf6 Nb3 Bfg5 Ke2 Bf6 Kd3 Bfg5 Qe2 Rfc1 Qe1 f1Q+ Qee2 Qf4 Qef2+ Qd4+ Ke2 Qc5 Q2f4 Be3 Qff2 Bf6 Re1 Beg5 Rh1 Ra1 Rb1 Qcb6 Rb2 Rf1 Qe3 Rf4 Kd1 Rg4 Qef3 Rd8 c8N+ Ka6 Be7 Q6c7 Nb6 Rc8 Bf8 Ka7 Qff2
3B3Q/Rr1p1Q1B/3K2b1/1k1P1QB1/bQ2Nn2/1np2pr1/b1PPnb2/2n1q3 b - - 0 1 illegal: No proof kernel
bn1Kb2q/pQNQR1N1/p2Bp1p1/1N2r1P1/3q3k/3n1Q2/P2QP3/1r2n2b b - - 2 3 legal: proof: g4 c5 d4 cxd4 b4 h5 f4 e6 g5 Qe7 f5 Kd8 f6 Kc7 Nd2 Na6 Bg2 Nb8 Bc6 Kb6 Bb5 Qd8 Ba6 Be7 fxe7 bxa6 Rb1 Kc6 Rb3 Qf8 Rg3 Qd8 Rg4 hxg4 Kf2 Kd5 Kg3 Ke5 e8N Kf5 h4 d5 c4 g6 h5 d3 Kh4 g3 h6 g2 b5 d4 h7 Bb7 b6 Nh6 c5 Ng4 c6 Nf2 c7 Rf8 Nf1 d2 h8Q d3 Qb3 d1B c8Q d2 Qd4 Nd3 Nf3 g1N Qcd7 f6 Qa3 Ba4 Nc7 d1Q Bf4 Rf7 Rh2 Qh8+ Kg3 Qa1 Q4d6 Qd4 Rh7 Bd5 b7 Bac6 N3h2 Bh1 Nf3 Rf8 Re7 Ba4 Qd8 Be8 Q6d7 Rf7 Bd6 Rf8 Ne1 Nf3 Nc2 Nfe1 Qc3 Ke4 Qd2 f5 Na3 f4+ Kg4 f3 Ne3 f2 Nf5 f1B Nab5 Rf6 Ng7 Rf5 Qc6+ Rd5 Qdd7 Bfg2 Qcc3 Re5 Kg3 Nc6 b8Q Bf3 Qb7 Rb8 Qdc2 Ke3 Qd1 Be4 Kg4 Kf2 Qdd2 Nc1 Kf4 Kg2 Qa1 Kh3 Qac3+ Kh4 Qf3 Qa4 Qa8 Rb6 Qb7 Nb8 Ke3 Qd1 Kd4 Bd5 Kc5 Qa4 Nc3 Rb1 N3b5 Re4 Bh2 Re5 Kd6 Bc6 Nd5 Qd4 Kc7 Ncd3 Kd8 Rb3 Ndc7 Rb1 Qc8 Ba8 Qcb7 Rc5 Bd6 Rf5 Nd5 Re5 Ndc7
1nr1Q3/6pr/ppBBn3/k2n1q1N/1PrB1QPb/3pp2P/bQR5/6KQ b - - 0 1 illegal: No possible last move, all moves rejected
4n1B1/pQ1pKb1p/P1p1p2r/RBn1PBr1/3Qqq1p/7N/2P4Q/bBk5 b - - 1 3 illegal: No proof kernel
1kb3n1/4P2r/1qP3q1/6B1/1BR4p/r3bB2/BRqRP1N1/rB3Kb1 b - - 0 1 legal: proof: b4 a5 h4 e5 f4 c5 fxe5 g5 hxg5 b5 a4 Be7 axb5 a4 d4 cxd4 b6 Bf8 b5 Na6 Na3 Bxa3 bxa6 Bf8 Qd3 a3 Qc4 Bb7 Qc8 Bxc8 c4 f5 g4 d5 b7 Kd7 b8B h5 e6+ Kc6 g6 f4 a7 Kb7 c5 f3 g7 d3 g5 a2 g6 d4 c6+ Ka6 e7 h4 Rb1 a1B Bd6 Rh7 Rb2 Qb6 Bg2 d2+ Kf1 f2 Bb4 d3 Nf3 d1Q+ Ne1 d2 Bf3 Qc2 Ng2 Qd3 Rh3 Qf5 Rg3 Qb1 Rg4 d1Q+ Be1 Qdd3 Rc4 Qbc2 Bg5 Qf5 Bb4 Qf6 Rb3 Be5 Rb2 Bh2 Rd4 Bg1 Rd2 Nh6 g8B Qf7 g7 Qfg6 Be6 Ng8 Nf4 Rb8 Ba2 Ra8 Kg2 f1R Bb1 Nf6 g8B Bh6 Bga2 Ng8 Rd4 Rd1 Rc4 Rd3 Kf1 Ra3 Bf6 Bg5 Ng2 B5e3 Bg5 Qb8 Bf4 Kb6 Bg5 Kc7 Bd2 Qb6 Bb4 Rb8 a8R Rb7 Bc3 Rba7 Bb4 R7a4 Ra7+ Kb8 Rd7 Ra8 Rd2 R8a4 Bb3 Ra1 Ba2 Ra5 Bc3 Ra3 Bb4
1q2q2N/1R1P3n/q5r1/k1pNP3/2B3rP/KNB1B3/4pB1b/2rb1B1q b - - 0 1 illegal: No possible last move
1rnR1RNq/qN1K2N1/b5b1/q2p1RP1/1P6/4P2N/1N1p2pn/rk4Q1 b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 a5 g5 Ra6 g6 Rc6 d3 Rc4 Bf4 Re4 dxe4 hxg6 e3 g5 Bh3 g4 Bg2 Qg5 Bf1 Qd8 Ra4 exf4 Ra1 g5 Nh3 d5 Qe2 g3 Qd3 g2 Kd1 g1R Qb3 Bd6 Kd2 c6 Bc4 d4 Bd5 cxd5 Qd3 g4 Qe2 g3 Qf3 g2 Qd1 Re1 Ng1 Be7 Ne2 Rg1 Kd3 Bh4 Kd2 Bg3 fxg3 Rh4 Qc1 Rh3 Qd1 Rh8 Kd3 Ke7 b4 Kd6 h4 Ke5 c4 f5 b6 a4 b7 f3 c5 f2 g4 f1Q g5 f4 c6 f3 h5 a3 h6 a2 c7 f2 h7 Be6 c8N Qc7 Ne7 Qd7 Nd2 Nh6 Ng8 Na6 b8R Nc7 Rf8 Nb5 Rd8 Qe1 Nf4 Na7 Nh3 Nc8 Qc1 Bf7 Nc4+ Ke6 e5 Kf5 e6 Bg6 e7 Qa7 e8N Ng4 Rb1 a1Q Nb2 Nh2 Qd1 Q1a5 Rc1 Nd6 Rcc8 Rf1 Rb8 Nc8 Qb1 Qc1 Rg1 Re1 Rf1 Qcc7 Ra8 Qcb8 Ng7+ Ke5+ Kd2 d3 Kc3 Ke4 Qd1 Ne7 Rf8 Qe8 Rd8 d2 Nf6+ Ke5 Rf7 Q5b6 Rd7 Rf8 h8N Qba5 Rd6 Qeb5 Qa1 Qe2 Ng8 Rb8 Rd8 Ke4 Rff8 Nc8 Nf7 Qh5 Kb3 Qh8 Nd6+ Ke5 Nb7 Ke4 Rg1 f1B Qb1+ Bd3 Rgf1 Rc1 R1f5 Rf1 Qe1 Ba6 Qf2 Rc1 Qg1 Re1 Na4 Kd3 Ka3 Q5b6 Nb2+ Kc2 Ka4 Kc1 Kb3 Qa5 Kc3 Qa8 Kd4 Qa7+ Ke5 Kc2 Ke6 Ra1 Qf2 Kc1 Kd7 Kb1 Qg1+
2R1Nq2/KRb2b1n/N2nr2b/NPB4R/4n1nk/1n5r/RPR2P2/5n1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 h4 g5 g4 Bb7 h5 Bh6 Bh3 Nc6 Qf3 Qd7 Qg3 Ba6 Qh4 gxh4 g5 Bf8 g6 Bc8 g7 Qd8 Bf5 Nb8 Bg6+ hxg6 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 a5 d4+ e3 d6 e5 d5 a4 h6 a3 h7 h3 Ne2 h2 Bd2 a2 Ng1 e4 Ne2 Ne7 g8R Nf5 Nec3 Kh4 Rg1 h1N Be1 e2 Rg2 e3 Ne4 g5 Rg6 g4 Rg1 g3 Rg2 Nd7+ Kc6 Nf6 d7 Bd6 Nc5 Ng4 Nd2 Qf8 d8N Be6 Kb7 Bf7 Re6 Ra6 Nce4 c5 Nb1 c4 Na3 c3 Rg6 c2 Rb1 c1B Nf6 a1N Ne6 Nb3 Bb4 e1N Nc4 e2 Nc7 Nf3 Ra1 e1N Nfe8 Nd3 Na5 Bh6 Ra2 Nfd2 Bc5 Nf1 Rg7 Be5 Rg1 Re6 d6 g2 d7 Nd6+ Ka7 Bh2 d8R Bg3 Bb6 Ndc5 Rc8 Nce4 Na6 Nf5 Ka8 Bc7 Ka7 Nfd6 Bd4 Nfe3 Rf1 g1N Rc1 Nf3 Bc5 Nf1 Rc3 Nfg5 Rc2 Rg8 h8R Nh7 Rg5 Rgg6 Rg8 Rgf6 R8g7 Rf3 Re5 Rh3 Rf5 Bg6 Rd7 Bf7 Re7 Bd8 Rb7 Bc7 Rh5+
rR1n3n/2qb2BP/1NkBBnN1/1p1P4/6r1/q3brb1/PB1B4/K2b1N2 b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 h6 f5 Bd7 Qf3 Be6 Na3 Bc8 Qf4 gxf4 g5 h5 Rb1 Nc6 Rb3 Nb8 Rg3 Nh6 Rg2 Ng8 Rg4 hxg4 Kd1 Kd7 Kc2 b5 Kb1 e5 h4 c5 d4 c4 d6 c3 h5 g3 h6 c2+ Ka1 g2 g6 b3 f7 e4 g7 e3 h7 f3 f6 f2 Nf3 g1N Nh4 e2 Nf3 e1B Nh2 Kc6 d7 Nf3 Be2 f1R Rg1 Ne5 Bc4 Qc7 d8B Rf3 Nf1 Ng6 Be6 Bd7 Nc4 Bg3 Bb2 Bb4 f8B Bd2 f7 Nf6 Bde7 Rg8 Nb6 Be3 Bb4 Nh8 Bd2 Qd8 Bd6 Qc7 Bf5 c1Q+ Bb1 Be5 f8B Bg3 Rg2 Qc5 Bf5 Qa3 Rf2 Kb7 Re2 Nc6 Be6 Nd8 Re1 Qc8 Rc1 Qb8 Rc8 Qc7 Rb8+ Kc6 Bfe7 Rf8 g8N Rf7 Bf8 Rg7 Nh6 Rg4 Nf5 Be5 Bg7 Bg3 Bbc1 b2+ Kb1 Ne8 Nh4 Nf6 Ng6 Qa6 Kc2 b1B+ Kb2 Bc2 Ka1 Bd1 Bb2 Qa3 d5+
3nr1B1/4PB1N/Bb4nK/3Q1rBb/n5k1/N4pn1/q1P3nP/4rBnN b - - 0 1 legal: proof: b4 a5 g4 axb4 d4 c5 dxc5 h5 a4 g5 f4 e5 Nf3 Nf6 Ra3 Bd6 Re3 Bf8 Re4 Ng8 Rg1 Rh7 fxe5 Rh6 Rf4 gxf4 g5 Rh8 Rg4 hxg4 Kd2 Ke7 e4 Ke6 a5 f5 c6 b5 a6 d5 a7 b3 c7 g3 g6 g2 g7 g1N Bh3 b2 Na3 b1N+ Kd3 d4 Qe2 b4 Nb5 b3 Nh4 f3 Qe3 b2 Qe1 f2 Qc3 f1N Nd6 Ne7 Qc6 Ng6 Bg5 Ng3 Bf1 f4 Nhf5 f3 Nc4+ Bd6 g8N Nc3 Na3 b1R Nf6 Rh5 Nh7 Na4 Kd2 d3 Ke3 Bd7 c8B d2 Bca6 Be8 Qb5 Nc6 Qc5 Nf8 Kf4 d1N Qa5 Rc8 a8B Ne3 B8b7 Re1 Qd5+ Kd7 Bac4 Qa5 Bba6 Ng2+ Kg4 Ng6 e6+ Kc7 e5 Bc5 e7 Nd8 e6 Bb6 Nh6 Bf7 e8B Ra8 e7 Rc8 Qb7+ Kd6 Nf5+ Ke5 Be6 Qd5 Qd7 Qa2 Bd5 N3e2 Ng3 Rb8 Nh1 Ng3 Bd2 Rf5 Bg5 N3e2 Kh5 Ng3+ Kh6 Ra8 Bf6+ Kf4 Bg5+ Kg4 Qd6 N6f4 Qc5 Bh5 Bef7 Ng6 Bdc4 Nb7 Bg8 Re8 Bcf7 Nd8 Qd5
2kq1B1b/2rP1B1n/1B1Rn3/1Pp5/1p1b3N/B2r1Pq1/3B1Rb1/2KR1n1q b - - 0 1 illegal: No possible last move, all moves rejected
qQ3nK1/3r1R2/p4RR1/1bPR4/1BP1r3/q1R2r1k/1b2Pp2/b1rR1nN1 b - - 0 1 illegal: No possible last move
1Rb1nB1b/2NPp3/1KBPr3/P6n/3p2b1/p6B/qR1BR2r/2B1bk1n b - - 0 1 illegal: No proof kernel
q3b1qR/r2n3N/Np1rp3/PP3RQk/1bR1P1p1/2b4b/2N2N2/q1N3nK b - - 0 1 illegal: No possible last move, all moves rejected
1n2qk2/1r5B/Bp3r2/BPBp4/1Bp1b3/p1P2q1b/P2bB1Q1/1n1qRNK1 b - - 0 3 illegal: No possible last move, all moves rejected
1R2R1nb/4R3/Q2pN3/1q2k2R/1p1prR2/rPBP3P/p1qn1Kbr/nR6 b - - 0 1 illegal: No proof kernel
3Kn3/Pb2BQNb/4NNpP/2Q2N1n/b4k2/2P2Bn1/3nq2r/N2b3n b - - 0 1 legal: proof: e4 c5 f4 d5 b4 a5 d4 e5 Qd2 b5 Qf2 Bd6 Qd2 Ra7 Qd1 Rd7 Na3 axb4 dxc5 d4 Nb1 Bc7 Qh5 Rd5 exd5 e4 Qd1 Be5 fxe5 g6 h4 Qf6 g4 Bf5 a4 Qe7 g5 Bc8 Ra3 Qd8 Rf3 Nh6 Rf5 gxf5 g6 f4 g7 Ng8 Rh2 Bb7 Rg2 Bc8 Rg6 hxg6 Kd2 Ke7 h5 f5 d6+ Ke6 c3 b3 d7 d3 a5 f3 Ke3 b2 Kf4 b4 a6 d2 c6 e3 c7 b3 a7 f2 Bd3 f1N Nh3 e2 Be4 e1N Qe2 d1B Qc2 Qe7 d8Q Nf6 Kg5 f4 g8N f3 Qh2 f2 Qf4 Na6 Qf8 Nd3 Bf3 Nd2 Na3 f1N Nc2 b1B Na1 Ba2 Ba3 Bb7 c8N b2 Nd6 b1B Nf5 Bbc2 Bb4 Qe8 Be7 Ba4 Qb4 Rh7 Qc5 Ng3 Qg7 Nf2 Qf7+ Kd7 Nf4 Nc7 Ne6 Nfh1 Ne3 Qd8 Nf5 Nce8 Nfg7 Qb6 Nh6 Qb5 Nhf5 Qe2 h6 Nfh5 Nd8 Bc4 Qf8 Bg8 Nde6 Rh8 Qf6 Bh7 Qf7 Nd6 Qd5 Rb8 Qc5 Nf4 Kf6 Rd8 Qg8 Ne8+ Kf7 Nfh5 Kf8 Rc8 Qf7 Rd8 Qd5+ Nd6+ Ne8 Qh2 Bh4+ Kc8 Ke7 N2c4 Nf4 Qc2 Neg7 Kc7 e6 Qd3 Ne2 Qe4 Qd4 Kc6 Qb6+ Kd5 Ned4 Ke5 Qc5+ Kf4 Bf6 Nb5 Bh4 Nc7 Bf6 Rd5 Bh4 Re5 Kd8 Nd2 e7 Qd3 e8N Re2 Bf6 Rh2 Be7 Qe2 Nf6 Ne8 Nde6+
1Bqnq3/1P1kRnPB/1p1q4/1K1QP1b1/2Rrb2Q/1R1nr3/5Rq1/r4R2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 e5 c4 exf4 cxd5 Ke7 a5 Ke8 b4 Qd6 Nc3 Ke7 Nf3 Qe5 Na4 bxa4 b5 Qd4 b6 Qb4 b7 Qd6 Ne5 Qd8 Nd7 Ke8 Nb6 axb6 e4 h5 Ke2 f5 Kd3 c5 Kc4 h4 g4 f3 d4 a3 g6 f2 e5 f4 g5 h3 g7 h2 g6 a2 d6 f3 a6 Be7 a7 Nc6 d5 Nh6 g8R+ Kd7 g7 Qe8 Bg2 Nd8 Rb1 a1R Ba3 Bg5 Rf1 h1N Rb3 Nhf7 Rf8 Rh4+ Kb5 c4 Qd4 Rh3 Qh4 c3 Bc5 Rb8 a8R c2 Ra4 c1Q Rc4 Rba8 Bb4 R8a2 Ba3 Rd2 Bc5 Rd4 Ba3 Nh8 Rf6 Qc3 Re6 Nhf7 Bc5 Rg3 Bh3 Qd3 Bf5 Rh3 Bh7 Qg6 Rfb1 f1Q R1b2 Qc1 Rf2 Qcc2 Rg2 Nc6 Bg8 f2 Rcb4 Rdd1 Re7+ Kd8 d7 Re3 Bh7 Qc1 Bd6 Qcc2 Bb8 f1Q+ Re2 Qcf5 Rc4 Qg2 Re1 Nf2 Rf1 Nh8 Rf7 Rd4 Rf8 Ke7 d8R Nd3 Rd6 Qfh3 R8f2 Nf7 Rdf6 Bf5 d6+ Kd8 d7 Be4 R6f5 Ke7 d8Q+ Ke6 Qd5+ Ke7 Rd1 Qd6 Rf6 Qhc8 Re6+ Kd7 Rdf1 Ncd8 Re7+
2B1rnr1/4BBkq/1qp1Rnq1/3Q1P2/q1B1PPQq/1p3R1B/2bb4/5K2 b - - 0 1 illegal: No proof kernel
N4bb1/Pp1pRb2/N5N1/RPnnK2N/8/rNkp1P2/1Q3n2/1Qrb2r1 b - - 0 1 illegal: No proof kernel forced: wxLB
4R1K1/1B2B1nn/2B1r1RQ/3r4/3nr1pp/k3BPPP/2rQ3p/1B3qnb b - - 0 2 legal: proof: d4 c5 dxc5 d5 b4 a5 e3 axb4 Be2 e6 Nc3 d4 Nb1 d3 Bf1 Bd6 Na3 Bg3 Nb1 Be5 Nd2 f5 Nh3 Bf6 Ne4 Bd4 exd4 Ra5 Ng3 Ra8 Ng5 f4 h3 fxg3 Nf3 Qe7 Nh2 gxh2 Kd2 Qd6 Ke1 Qd8 Kd2 Kd7 Ke3 Kc6 Ke4 Kb5 Ke5 Ka4 c4+ b3 d5 h5 a3 g5 g3 b5 d6 d2 d7 g4 c6 h4 c7 b4 c5 Nf6 c6 Nh7 Qc2 d1N Bc4 Bb7 c8B Ra5+ Bd5 Re8 c7 Qf6+ Kd6 e5+ Be6 e4 d8B e3 Qd2 b2 Rb1 e2 Re1 b3 Be7 Bh1 Bb7 Ne3 c8Q Nc6 f3 Nd4 Ra1 b1R Qc6+ Rb5 Kd7 b2 Ba2 Nef5 Qe6 Qf7 Qeh6 Qc4 Bc6 Rc8 Bb7 Rc7+ Ke8 Rd5 Kf7 Ng7 Kg8 Rcc5 Qc3 Rc6 Be3 Re6 Qd2 Rc1 Bb1 Rc2 Ra2 Kb3 a4 Qb5 a5 Qd3 Rc1 e1R a6 Qf1 a7 Re4 Ra5 Re2 Rc5 Ka3 a8B Re6 Re1 Re4 Ba2 b1N Bc6 Nc3 Bab7 Re6 Bb1 Re4 B3g5 Re6 Bf4 R2e4 Be3 Nce2 Rb5+ Rdd6 Rg5 Ng1 Rg6 Rc4 Rc1 Rc5 Rc4 Rdd5 Rb4 Rc2 Ra4+ Kb2 Ra8 Kb3 Re8 Kb2 Bf6 Ka3 Be7+
2Q2b2/k1pbp2r/2B4n/1RQnPP2/n2R3r/1Qr2QpP/1n1Q1Br1/7K b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 f5 e4 h6 g4 Ba6 e5 Qd3 g5 Qc3 Nh3 Qf3 Nc3 Bc8 Ne4 fxe4 Nf2 h5 Ng4 hxg4 f5 Qa3 Bg2 Qa6 Bf1 Qf6 gxf6 Bd7 Bh3 Be6 Bf1 Bc8 Kf2 Kd7 Kg1 a5 d4 g5 b4 a4 f7 a3 d5 c3 d6 c2 b6 Kc6 b5+ Kb7 d7 a2 d8Q e3 h3 g3 Q1d5+ Nc6 Rh2 e2 Qh1 e1N Qg2 g4 Qdd2 Nh6 Qf3 g2 Rb1 a1N Ba3 c1R Bc5 Kb8 b7 Bd7 Bf2 Nb3 Bc4 Rc3 Bd5 Nb4 Bc6 Nc5 Rb3 Ka7 b6+ Ka6 b8Q Rh7 b7 Nd5 Rb5 Ned3 Qc8 Ra7 b8Q+ Rb7 Qde3 Na4 Qc5 Ndb2 Qd8 Ra7 Rh1 Ra8 Kh2 Ra7 Rd1 g1R Rd4 Rg2+ Kh1 g3 Qdc8+ Rb7 Qd8 Bg7 f8Q Ra7 Qf6 Bf8 Qg5 Rb7 Qge3 Rb6 Qbc8+ Ka7 Qc4 Rb7 Qb3 Rb6 Ba8 Rg6 Bc6 Rg4 Qc1 Rh4 Qd2 Be8 Qd6 Bd7 Qc5+
1r3BQb/Qp1kp1pP/p3p3/1R6/n2p1Q1R/pQ1Q4/BPp1r1P1/1nK5 b - - 0 1 illegal: Other
7N/1r1Nkb2/4rQQ1/1bR2R1R/2qnbP2/2Pr4/1Pq1qNN1/4bnK1 b - - 0 1 legal: proof: e4 c5 a4 h5 g4 f5 exf5 a5 gxh5 b5 axb5 a4 d4 cxd4 Bh6 a3 Nh3 Nxh6 Ng1 a2 Bc4 Ng8 Bd5 Nf6 Bg8 Nxg8 Kf1 d5 h4 e5 f4 g5 h6 e4 h7 g4 h5 e3 b6 d3 b7 d2 f6 g3 h6 d4 f7+ Ke7 Nf3 g2+ Kg1 e2 Rh4 e1Q+ Kh2 g1R Na3 d3 Ng5 Ra6 Nc4 Qd4 Na3 Nc6 b8Q Bb7 Qb1 d1B Rg4 d2 Qc1 Be2 Qa7 d1B Nc4 Rg3 Qa8 Rd3 Ne3 Qc4 Ne4 Nf6 Rg5 Nd5 Rf5 Nd4 Nf2 Re6 Ng2 Ne3 Qb1 Be4 Qa6 Nf1+ Kg1 Bg7 Qb6 Rb8 h8R Rb7 f8N Bh5 h7 Bde2 Qa6 Bf7 Nd7 Bf6 c3 Bh4 Qc2 Bg3 Rd1 a1Q Rc8 Qaa4 h8N Qd2 Rcc5 Qe3 Ra1 Qf3 Qb1 Qc2 Raa5 Bh4 Nh3 Be1 Nf2 Qe3 Qb6 B2f3 Rh5 Qee2 Rcf5 Bc6 Rac5 Bb5 Qc6 Be4 Qa6 Re5 Qg6 Re6 Qa1 Kd6 Qa6+ Ke7 Qd6+ Ke8 Qe5 Ke7 Qef6+
2r1nk2/1n2bB2/P4nR1/3b1Q1b/K1RPn1nq/4Q1b1/1P6/b1R1QQB1 b - - 0 1 legal: proof: g4 d5 f4 a5 a4 e5 c4 g5 cxd5 e4 Nf3 exf3 Nc3 Ra6 Ne4 b5 axb5 gxf4 bxa6 h6 g5 h5 Nf2 Rh7 Ng4 hxg4 Ra2 Rh3 Ra1 Rh8 h4 f5 d4 c5 Kd2 a4 Kc3 a3 Kb3 c4+ Ka4 g3 e4 c3 e5 c2 d6 f2 e6 a2 g6 f3 h5 g2 h6 g1B h7 f4 g7 Nf6 g8Q Nbd7 e7 Bh2 Kb5 Bb7 Qg1 Bg3 Ka4 Bd5 Bd2 c1N Qh2 Nb3 Bc3 Na5 Be2 f1N Qf2 Ne3 Qff1 f2 Rh6 f3 Rg6 Neg4 Bd2 Nb7 Rc1 a1B Bc4 Rg8 Qfe1 f1B h8Q f2 Qh7 Be2 Be3 f1N Bg1 Nd2 Qf1 Rh8 Qde1 Nde4 Qh5 Bf3 Qf5 Kf7 e8R Be7 Reg8 Be2 R8g7+ Kf8 Rh7 Bg8 Bf7 Ne8 Rh3 Ndf6 d7 Bf3 Rh2 Bd1+ Rhc2 Bf3 Bb3 Bd5 Rc4 Ngf2 Qe3 Bh5 Qee1 Ng4 Qe3 Qb8 d8Q Qf4 Qa5 Qg5 Qac3 Qh4 Qce1 Ng7 Bd1 Ke8 Rg5 Be6 Rc8+ Kf7 R8c2 Rc8 Rg6 Ne8 Rc3 Ba2 Bb3+ Kf8 Bf7 Bd5 Rc4
1NK3N1/4Q1rP/2RP2qr/1nPRQ3/k5Nb/4N2q/2qp3n/3R1nnb b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 b5 g4 h5 gxh5 Nf6 axb5 Ng8 b4 axb4 d4 d5 Bd2 c5 Bd3 c4 Kf1 c3 Be2 cxd2 c4 Nd7 c5 Nb8 Bc4 dxc4 Ke2 Kd7 Kf3 e5 Kg4 g5 f4 b3 h4 c3 b6 Kc6 b7 Kb5 d5 b2 d6 e4 h6 e3 h5 e2 h7 e1N h6 c2 Ra6 c1N Na3+ Kb4 Rc6 b1Q Nc2+ Ka4 Nf3 Ra7 Ne3+ Nc2 Qe1 Ne2 Ne5 Na6 b8N Bb7 f6 Qd7+ f5 Ng1 f7 Be7 f8N Nc7 Nfg6 Nb5 Qh4 Bd8 Ne7 Qe6 Qh5 Qg6 f6 Qf1 f7 Nf6+ Kg3 g4 f8Q Qh3+ Kf4 g3 N5g4 g2 Ke5 Ba8 Ng8 Rg7 Ke6 Bb7 Nc4 Ne3 Qe5 Nf1 Ne3 Qc2 Qe8 Nh5 Qe7 Nh2 Kd7 Ng3 Nf1 Ba8 Ne3 Ngf1 Kc8 Ne2 Nf5 g1Q Nfe3 Qgg2 Rg1 Qge4 Rh1 Qg6 Rg1 Nfg3 Re1 Ngf1 Rd1 Ng1 Nf6 Rf8 Ng8 Rf6 h8R Re6 h7 Rf6 Nh6 Re6 Re8 Rf6 Ng8 Re6 Qd7 Bh4 Qe7 Rf6 Rc7 Bh1 Rc6 Qgd3 Rf8 Rh6 Rf5 Qe4 Qc3 Qed3 Rd5 Qg6 Qce5
bb6/3B2bP/2P1r2b/B1KbB1P1/2QQR1bk/4R1rn/n1qB4/n3qQ2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 g4 Bb7 f5 Ba6 Nc3 Bc8 Nh3 h6 Nf4 gxf4 Ne4 h5 g5 Qb6 Nf2 Qd8 Ng4 hxg4 Kf2 Kf7 b4 e5 c4 a5 h4 d5 b6 f3 c5 d3 Ke3 g3 b7 f2 b5 g2 b6 g1B h5 d4+ Ke4 a4 h6 d2 c6 d3 h7 a3 Rh4 a2 Rf4 Qe8 Kd5 e4 Ba3 e3 Qa4 d1B Rc1 a1N Rc2 d2 Qd4 e2 Qb2 e1B Rh4 Bh2 Bb5 f1B Rh3 Bg4 Bd3 d1Q Qb5 Na6 b8B Bh6 b7 Nb4+ Kc4 Na2 Re2 Ne7 Kc5 Bc3 Be5 Ng6 b8Q Bg2 Re4 Nf4 Qd6 Bb7 Bb4 Ra3 Ba5 Qc2 Rhe3 Ba8 Qd4 Nh3 Qbc4+ Qe6 Bf1 Re8 Be2 Kf8 f7 Ke7 f8B+ Kf7 f6 Kg6 f7 Kh5 Kb6 Kh4 Bfb4 Re7 f8Q Bf4 Bf6 Bb8 Be5 Re8 Qf1 Bf3 Rf4 Bd5 Kc5 Bb2 Bd2 Rb3 Ree4 Rg3 Re3 Bc3 Bd3 Bb2 Bf5 Re7 Bf6 Qee4 Bd7 Re6 Be5 Bc3 Ref3 Qe1 Re4 Bb2 Rfe3 Bc3 Bd6 Bb2 Qdd3 Bf6 Be5 Bfg7 Qd4
1bq5/1qq1rk2/PnQ2B2/N2Qn3/1p1qQ2r/bPQ2B2/N1rPN3/3b1K2 b - - 0 1 legal: proof: h4 a5 g4 d5 e4 g5 c4 gxh4 cxd5 f5 exf5 a4 b3 a3 Nc3 Ra6 Rb1 Ra8 Rb2 axb2 a4 b1Q Rh3 Qa1 Re3 Nc6 Re6 Nb8 Rg6 Nf6 Rg8 Nxg8 f4 h5 f6 c5 d6 b5 a5 e5 d7+ Kf7 a6 b4 g5 c4 f5 e4 Qg4 e3 Nb5 c3 Qg2 h3 Nc7 e2 Qg3 c2 Kf2 e1R Qe5 h2 Bg2 h1Q Ne2 h4 Qe4 h3 Nd5 h2 Bf3 Rh4 Ndc3 Nc6 Bb2 c1B Na2 Qc7 d8Q Be6 Qdd5 Ne5 Bd4 Rc8 g6+ Ke8 g7 Kf7 Qc6 Ne7 g8N Nd5 Ne7 Ba3 Qc3 Nb6 Nc6 Bd6 Na5 Bc4 Qc6 Bd3 Qe4 Bc2 Qec6 Kf8 f7 Bd1 Qe4 Ke7 f6+ Ke6 f8Q Qb2 Qd8 Kf7 Qec6 Qf1+ Ke3 Qh3 Kf2 h1Q Qe4 Qhd7 Qcc6 Qhh3 Qc3 Qe7 Qd7 Qb7 Qdc6 Bb8 Qed5+ Qhe6 Kg2 Qec7 Kf2 Kg6 f7 Kf6 f8Q+ Kg6 Qfd8 Kf7 Qe4 Qc4 Qcd3 Qbc1 Bc3 Qd4+ Kg2 Qc2 Qdd5+ Kf8 Qdc5+ Qcd6 Qa4 Qdd5 Nd4 Ng6 Qg4 Re7 Kf1 Kf7 Ne2 Qc4 Bf6 Ne5 Qcb5 Qcd4 Qge4 Qcc4 Qd7 Qce6 Q7b5 Rc2 Qc3 Qec8 Qbc5 Qdd8 Qac6 Qdc7 Q5d5+
bbKB4/PrRQ3k/B1nRQ2q/q1bp1P1R/8/Pq2B1n1/5Rnr/1q6 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 b4 cxd4 bxa5 g5 f4 Ra7 f6 Ra8 g4 Ra6 f5 Ra7 Nc3 Ra8 Nd5 h6 Nf4 gxf4 Nh3 h5 g5 Nh6 Nf2 Ng8 Ng4 hxg4 Ke2 Kf7 Kd3 b5 Ke4 e5 Kd5 d3 h4 d2 c4 g3 a3 b4 a6 e4 c5 f3 a7 g2 h5 g1B c6 e3 c7 b3 h6 e2 h7 e1N Rb1 b2 Rh3 f2 Qc2 d1Q+ Qd3 Bh2 Rh6 Nc6 Be3 Bb7 c8R Bc5 Rc7 Ng2 g6+ Kf8 f7 Kg7 Ra1 b1Q Ra2 Rb8 Qd4+ Qf6 Ba6 f1Q Rf2 Ba8 Rh5 Rb6 f8R Qfe1 Rd8 Rb7 Qd2 Qh4 Qd3 Kf6 g7 Qa5 Qd2 Nd4 Qd3 Ne2 Qd2 d6 Kc6 Qdb3 Kd7 Ne7 g8Q Nc6 Qe6+ Kg7 Qd3 Qf6 Qb5 d5 Kc8+ Be7 Qa4 Ng3 Qb5 Qh6 Qa4 Rg8 h8B+ Kh7 Bf6 Rg7 Bfg5 Bc5 Be7 Rg4 Rd6 Rh4 Qd7 Bg1 Qe4 Rh2 Rd2 Bf2 Qee6 Be1 Re2 Bc3 Rc2 Be5 Rf2 Nd8 Rdc6 Rb4 Rb7 Bb8 Rd6 Nc6 Rc7 Rb7 Bd8+
2b3kn/1N4n1/nnb1r2p/2Q2P2/r2P1B1K/1B1nQQ2/n6P/1q1r1NQN b - - 0 1 legal: proof: d4 c5 a4 cxd4 e3 d5 Ke2 b5 axb5 d3+ Kf3 g6 Ra5 d2 Ne2 d4 Ng1 d3 Ra1 Bg7 g4 f5 Kg2 Kd7 f4 Nh6 b4 Qa5 Nh3 Ng8 Be2 Qd8 Kf1 Bd4 exd4 Ke8 Ra6 Qd5 Re6 Qd8 Re4 fxe4 f5 g5 Rg1 Qd5 Rg2 Qd7 Rf2 Qd8 Rf4 gxf4 Kg2 Kf8 c4 e5 b6 a5 b5 f3+ Kg3 e3 b7 f2 b6 f1N+ Kg2 e4 c5 h6 g5 a4 g6 a3 c6 a2 c7 a1R Bf3 e2 Bb2 e1N+ Kf2 e3+ Kg1 e2 Kf2 Nf6 g7+ Kg8 Bg2 Nh5 Qa4 d1B Qa3 d2 Qf3 R8a4 Bc1 Na6 b8N Ne3 b7 Nd5 Nc6 Nb6 b8Q Qf8 Qa8 Qb4 Qe3 Nf3 Na5 e1N Nb7 Ne5 Bd5+ Nf7 Bb3 Nd3+ Kg2 Rh7 Nf2 Bf3+ Kh3 d1N Kh4 Bc6 Nh1 Nc3 Nd2 Na2 Nf1 Rh8 Bd2 Rd1 Bc1 Kh7 Bd2 Re8 Bc1 Re6 Bd2 B8d7 c8Q Nh8 Qf8 Bc8 Qc5 Kg8 Bc1 Qc3 Bd2 Qb2 Bc1 Kf7 Bd2 Qb1 g8Q+ Kf6 Qgg1 Kf7 Qeg5 Ng7 Bf4 Kg8 Q5g3 Bd7 Q3e3 Bb5 Nd6 Bd7 Qaf3 Bc6 Nb7
3Q3K/NP1q3n/N5b1/B2rr1nN/n2Pr3/3Brrpn/B2k2P1/2bB2Q1 b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 axb5 g5 h4 e6 c4 dxc4 Ra3 e5 Rf3 Bc5 Rhh3 Be7 Rhg3 Bf8 Rg4 hxg4 fxe5 Qd4 Rf2 Qd8 Rf4 gxf4 Kf2 Kd7 d4 Ke6 e4 f5 b6 a5 b5 c5 h5 c3 h6 a4 b7 f3 Ke3 c4 Kf4 f2 b6 c2 h7 g3 Qd3 a3 Qc3 a2 Qa1 c3 Ne2 Ra5 Bb2 c1N Ng1 c2 Nd2 Nd3+ Kf3 c1R Nc4 f4 Kg4 f3 Kh5 Re1 Kg6 Rd5 Bc3 Qd7 Be2 f1R Qd1 a1R Na5 f2 Nh3 Na6 b8N Ba3 b7 Nf6 Nac6 Bc1 Ba5 Re8 h8Q Nac5 Na6 Ra3 Na7 Na4 Qf8 Re7 Qd8 Nf4+ Kh6 Rf3 Bd3 Ree3 Qe1 Nh7 Qd1 Kf7 e6+ Kf6 Qe1 Rh1 Qg1 f1N Qg8 Rf7 e7 Nh2 e8B Re7 Bh5 Ree5 Qd8+ Ke6 Ng5+ Kd6 Ne6 Nh3 Bg4 Nf1 Ng7 Nd2 Qd1 Rhe1 Nh5 Rf7 Kg6 Nf3 Kh6 R1e2 Qg1 Nfg5 Kg6 Re1 Bd1 Rff3 Kh6 Re8 e5+ Ke6 Bc4 Kf5 e6 Ke4 Ba2 Kd3 e7 Ree5 Kg7 R1e4 Bb6 Kd2 Ba5+ Rc3 Nc6 Rf8 Na7 Rf3 Kh8 Rfe3 e8B Rf3 Bc7 Rce3 Bg6 Qg4 Be8 Bf5 Bb5 Bg6 Bd3 Qd7 Ba5+
1r2Rr1n/1QR4q/1knN1pPN/Nb2QPrN/4rQ1r/5K1n/5P2/2r4r b - - 0 1 legal: proof: d4 c5 a4 cxd4 e3 b5 axb5 g5 Qh5 Bg7 Qf3 Be5 Qd1 Bf4 exf4 Qc7 Bd2 Qb6 Bc1 Qd8 f5 g4 h3 Nh6 Bf4 Ng8 Bh2 g3 Be2 gxh2 g4 h6 g5 h5 Bg4 hxg4 Ke2 e5 c4 a5 b4 d5 g6 Kd7 b6 Kc6 c5 e4 h4 a4 b7 a3 h5 d3+ Ke3 f6 h6 d2 h7 a2 Ke2 g3 Ke3 d4+ Ke2 g2 Na3 e3 Qb3 d1R Nc4 d3+ Kf3 d2 Qd3 e2 Qe3 e1R Ne2 Rc1 Nf4 d1R Nh5 Qc7 Qe5 Re4 Re1 h1R Na5+ Kb5 c6+ Kb6 b5 Rd8 Rb1 a1R Rb4 Rdd4 Rc4 Nh6 Re2 Re8 h8N Bd7 Nf7 Rf8 Rc5 Be8 Re1 Qe7 c7 Nc6 Re2 Rb8 Re3 Ng8 Nh6 Qh7 Re2 Reh4 Qf4 Bd7 Re8 Re4 Rc4 Rcg1 Qe5 Rac1 Qf4 Ka7 b6+ Ka6 c8N Kb5 Ng4 Nh6 Nd6+ Ka6 Rc2 Nf7 Nh6 Nh8 Rc5 Ne7 Qe5 Bb5 Rc7 Nc6 Qf4 Rd8 b8Q Rc8 b7 Kb6 Qa8 Rb8 Nhf7 Rgd1 Nh6 g1N+ Kg2 Nh3 Kf3 Rdg1 Qe5 Rg5 Qf4 Rd8 b8Q+ Kc5 Qbb7 Rb8 Qaa6 Bc4 Qb2 Bb5 Qc8 Kb6 Qbe5 Rb7 Qa8 Rb8 Qb7+
1R2Q1K1/N2pQn2/3k1P1b/2Np2P1/4Q2r/b2q1bR1/n1R3rP/2nqQ1r1 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c6 d5 cxd5 exf5 Bh6 Ra2 Bg7 Ra1 Bf8 f4 h6 g4 Qb6 f6 Qc7 f5 Qd8 Bf4 gxf4 g5 h5 Be2 Bb7 Bf3 Bc8 Bg4 hxg4 Ke2 a5 Kd3 e5 b4 a4 c4 e4+ Kd4 f3 Ke5 e3 f7+ Ke7 b6 f2 b7 f1N c5 e2 b5 e1Q+ Ne2 g3 b6 a3 c6 g2 c7 g1R Ra2 Nd2 Nc3 Qe8 Na4 Na6 b8Q Rh4 b7 Nb4 Rc2 a2 Nc5 Bh6 f8R Qf1 Qe1 a1B+ Nc3 Ra2 Qa8 Qa6 b8Q Qd3 Qa4 Ba6 c8Q Qh5 Qbc7 Rb2 Nb5 Qd1 Na7 Na2 Qae4 Nb3 Qa8 Nbc1 Rb8 Qa3 Qca5 Be2 Qb6 Bf3 Qd8+ Kf7 f6 Qa6 Kf5 Qad3 Rc4 Rbg2 Rc2 Rf1 Rg1 Bb2 Qea5 Ba3 Qe1 Rgf2 Rg4 Rg1 Rg3 Rfg2 Ke5 Bg7 Kd6 Nh6 Qe6+ Kg6 Ke7 Nf7 Q6e2 Kf5 Ke8 Bh8 Kf8 Bg7+ Kg8 Bh6 Qe3 Q3e2 Qd3+ Ke5 Qe4+ Kd6 Qb7 Rg4 Qbc8 Rh4 Qde8 Qed2 Qcd8 Qd3 Qde7+
4bR1Q/N2p4/3P1nrr/2kPQ3/Nn3R2/Nbrp1Qq1/1NP2bnr/1K6 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 g5 axb5 c5 h4 gxh4 d5 Kf7 e5 Qc7 Bd3 Qc6 Be4 fxe4 Be3 Qd6 exd6 Ke8 Bd4 cxd4 Kd2 a5 Kc1 e5 b4 h5 g4 a4 f4 a3 g5 d3 g6 h3 g7 a2 b6 h4 f5 e3 b5 h2 f6 e2 b7 e1Q f7+ Kd8 b6 e4 Nh3 e3 Ng5 h3 Nc3 e2 Na4 Be7 f8N Qg3 Nfh7 e1N Qf3 Na6 b8N Nf6 b7 Nb4 Rf1 h1B Kb2 h2 Ne4 Ng2 Nb6 Ra3 Nf2 Rc3 Nf8 Rh6 g8Q Rg6 Rad1 a1R Qh8 Rc1 Rde1 Rd1 Re4 Rd2 Na6 Re2 b8Q Rd2 Qa7 Re2 Nc7 Ba6 Kc1 Bc4 Kb1 Bb3 Nd1 Rf2 Rf4 Rd2 Nc4 Kc8 Qae3 Kb7 Na8 Bd8 Rf2 Bb6 Qe5 Bd4 Rf1 Bf2 Ndb2 Ka6 Ne6 Kb5 Nd4+ Kc5 Nab6 Bg1 Qee4 Ne3 Qd1 Bf3 Qe5 h1R Qe7 Bh5 R1f2 Ne8 Qee5 Rg8 Rf8 Nf6 Qe2 Be8 Nc6 Rh6 Rf4 Rgg6 Qf3 Rdh2 Na7 Bf2 Na3 Ng2 N6a4+
2R2B2/4q3/2nP2n1/2q1PrQQ/1kprPnR1/Qp5b/BB4n1/1BK1bn2 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 axb4 c4 g5 Nh3 Rh7 Nf4 Rh8 Nc3 Be7 Ncd5 Bf8 Ne3 gxf4 g5 d5 Ng4 hxg4 cxd5 Rh5 Bg2 Rh6 Bf1 Rh8 d4 Ke7 Kd2 b5 a4 f5 h4 c5 g6 c4 e3 b3 a5 g3 g7 g2 h5 g1Q a6 b4 a7 f3 h6 f2 h7 f4 Ra6 f3 Bd3 f1N+ Ke1 b2 Rh4 b1N Ba3 Nc3 Bb1 Ne2 Rc6 Bh3 Rg4 Nf4 Rc8 Nc6 d6+ Kd7 d5 b3 Bb2 Nge7 g8B Neg6 Ba2 Qe7 Qd2 f2+ Kd1 Rb8 a8Q Bh6 Bf7 Rd8 h8Q Bg5 Qa3 Bh4 Qh5 Rf8 Bg8 Rf5 Bh7 Ra8 Rg8 Rd8 Re8 Ng2 Kc1 Ng3+ Qe1 f1N Qd2 Nh1 Rh8 Be1 Rf8 Nf2 Re8 Kc8 d7+ Kc7 Rf8 Kb6 d6 Kb5 Rh8 Rdf8 d8B Rf4 Rg8 R8f5 Rh8 Rd4 Re8 Qf6 Be7 Qg5 Bf8 Qe7 Rc8 Nd3+ Kd1 Ndf4 Kc1 N2h4 Qg2 Qf2 Qg3 Nhg2 Qgh4 Qf3 Q4g5 Qd5 Bg8 Qc5 Bd5 Qh7 Be4 Qc7 Beb1 Qe7 Qa7 Kb4 e4 Qd7 Qa8 Qe7 Qa3+
1b1Qr1Qn/b7/1RP4P/b1Nbr2k/2Np3q/pn1N4/3PR3/1nQqQK2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 f3 Nc6 f4 Nb8 g4 Ba6 Bh3 Bb7 Bb2 Bc8 f5 h6 Be5 h5 Bf4 gxf4 g5 Bb7 Bg4 hxg4 Qf3 Ba6 Qd1 Bc8 c4 Kf7 h4 d5 f6 Kg6 c6 e5 b6 a5 b7 g3 c5 g2 f7 a4 c7 e3 c6 f3 Ra2 e2 Rh3 e4 Ra1 Nh6 Nc3 Kh5 g6 Na6 b8Q Be6 c8Q Bb4 f8Q Ba5 g7 Nf7 g8N Nc5 Nb1 Nb3 Kf2 e1N Qbb4 Nc2 Rg3 Na3 Ne2 g1B+ Kf1 f2 Qc4 e3 Rg2 Rh7 Qd6 Nh8 Qcc1 Re7 Qe1 Bh2 Qdd7 Bb8 Ra2 d4 Rb2 Ba7 Rh2 Bd5 Nf6+ Kg6 Qd6 Re5 Nd7+ Kh5 Nc5 Qf6 Qg8 Rae8 Qd8 Qe7 Nbc3 Nb1 N3e4 a3 Nd6 Qg5 Nc4 Qh6 Nc3 Qh7 N3e4 e2+ Kg2 Qe7 Nd3 Qh7 Qg1 e1B Kf1 Na1 Rb6 Nb3 Nec5 Qe4 Q1g2 Qg4 Qe4 Qg5 Ke2 f1Q+ Kd1 R5e7 Nb7 Kh6 h5 Qh4 Nbc5 Qf3+ Qe2 Bg3 Rf2 Bgb8 Ke1 Qfg4 Kf1 Re5 Qee1 Qd1 Re2 Ng6 Qc8 Kg5 h6 Kh5 Qd7 Nh8 Qd8
2Q4q/N5rn/KB1r1p2/N3r3/2BbNP2/b2PBPNp/1b3Qnb/k4r2 b - - 0 1 legal: proof: h4 d5 a4 g5 c4 dxc4 f4 b5 axb5 Na6 g3 Bb7 h5 Bf3 exf3 Nb8 b4 h6 g4 Qd3 Rh4 Qd5 Ra6 Qd8 Rf6 Bg7 Rf5 gxh4 g5 Bf8 g6 Qc8 Re5 Qd8 Rg5 hxg5 Ke2 Kd7 d3 Kd6 h6 Kd5 b6 Kd4 b7 a5 b5 e5 b6 c5 h7 c3 g7 h3 Nd2 a4 Bg2 f6 Ne4 g4 Nd2 g3 Nf1 a3 Qa4+ c4 Qb3 e4 Qc2 a2 Qa4 a1B Qd1 e3 Bd2 c2 Qe1 c1B Qf2 Ne7 g8N Nf5 Ne7 c3 Nc8 c2 Na7 Rg8 h8Q Nd7 b8B Nh4 b7 Rg7 Bc7 Bfa3 b8N Bcb2 Qe8 c1R Bb6+ Rc5 Qh8 Nf8 Nbc6+ Kd5 Bc1 Nh7 Na5 Kd4 Nd2 Kc3 Bf1 g2 Ne4+ Kc2 Ke1+ Kb1 Be2 Re5 Bd1 e2 Kd2 e1R Ne2 g1B N2g3 Ng2 Bb3 Bh2 Bc4 Rf1 Qf8 Bd4 Qc5 B1b2 Qc8 Ka1 Kc2 Ne3+ Kb3 Ng2 Ka4 Qh8 Be3 Rb8 Qc7 Rd8 Qc8 Bdc5 Kb5 Bcd4+ Ka6 Rdd5 Nb5 Rd6 Na7
4QKb1/prN1B3/2b1b1b1/3QQ3/nB1B2pP/4P1k1/P1rbq3/3N1bbB b - - 0 1 legal: proof: c4 g5 d4 e5 b3 exd4 Nd2 b5 cxb5 Na6 e3 Nc5 f3 Ne4 fxe4 Bd6 Ba3 Be7 Bc1 Bf8 b4 Bc5 Rb1 Bf8 Rb2 Qf6 Rc2 Qe7 Rc6 Qd8 Rf6 Rb8 Rf2 Ra8 Rf4 gxf4 g4 h5 h4 Ne7 g5 Ng8 Rh3 Bg7 Rg3 Bf8 Rg4 hxg4 Ke2 Ke7 Kd3 Kd6 Kc4 Ke5 b6 d5+ Kb5 f5 Kc6 f3 b5 f2 b7 d3 b8B d4 g6 f4 b6 f3 g7 Bd6 b7 Ne7+ Kb5 c5 g8Q c4 Qe2 c3 Bg2 f1B Bh1 c2 Qd1 f2 Qc4 Bg2 Nf1 d2 Qb3 d3 Nh2 f1B Qe2 d1B Ba3 c1B Nh3 d2 Nf2 Bc2 Nd1 Be6 Bb4 Nd5 Kc6 Rh7 Qb5 Rf7 Bc7 Rc8 b8B Qf6 Qc5 Qf2 Qd3 Qe2 Nf3+ Kf6 Qb3 Nc3 e5+ Kf5 Qbd5 Na4 Ng5 Rh7 Qd4 Bg8 e6+ Be5 Nb2 d1B e7 Bd2 Kd7 Bd3 Bca5 Bb3 B8d6 Rc2 Ke8 Rf7 Ne6 Bge4 Qb7 Bh2 Bb6 Bg1 Nc7 Be6 Nd1 Rh7 Kf8 Bc6 e8Q Rd7 Nb5 Re7 Qbb8 Rb7 Nc7 Bde4 Be7 Bd3 Qc4 Ke5 Bg2 Bg6 Bd4+ Kf5 Bh3 Ke4 Qd3+ Kf3 Bg2+ Kg3 Bh1 Bed5 Qf5 Bdf7 Qbd8 Be6 Qdd5 Rc1 Qg5 Rc2 Qge5+
2K1N1Qq/6B1/p1bqn3/Bp2Q1b1/P1QpP2r/5b1n/Pk2r2B/1Nn3B1 b - - 0 1 illegal: No proof kernel
3r3Q/N2Pk2P/1Q3R2/1pN2n1r/1q2NKb1/N1p3Rp/4bPRq/b3nq2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 Bg7 h5 Bh6 Bb2 Bf8 g4 Kf7 Bb5 Ra6 Bf6 Bh6 Be8+ Kf8 Bg6 Ra4 Be5 Ra5 Bg3 Ra8 Bh4 gxh4 g5 Bg7 Bf7 Bh6 g6 Bg7 Be6 Ke8 Bf7+ Kd7 Kf1 Bf8 g7 Nh6 Bg6 hxg6 Ke2 Ng8 Ke1 Ke8 Ke2 c5 Kf3 e5 d4 b5 a4 e4+ Kf4 b3 h6 b2 a5 h3 f6 c4 f7+ Ke7 a6 e3 a7 e2 Rh2 e1Q Nf3 Nd7 Rg2 Qf1 Ng5 Ne5 Na3 b1B Ne4 Bg4 Qf3 c3 Qe3 Qd6 Rg3 Rd8 a8Q Qb4 d6+ Ke6 d7 Ke7 d5 Nf3 Qb6 Ne1 Qab8 Bd3 Ra2 Bde2 d6+ Ke6 Rd2 Ne7 g8R Nf5 Rd5 Be7 f8N+ Kf7 Ne6 Bg5+ Ke5 Bc1 N6c5 Bb2 Kf4 Ba1 Rdd3 Rh7 Rdf3 g5+ Ke5 Rf8 d8N+ Ke8 d7+ Ke7 Ndb7 Rd8 Na5 Bh5 Rg2 g4 Kf4 g3 Rg5 Bg4 Nc6+ Kf7 Na7 Ke7 Rg6 Rhh8 Rf6 Rh7 Rh2 g2 Rg3 g1Q Rhg2 Qh2 Qc8 Rg7 h7 Rg5 Qa8 Rh5 Qab7 Rb8 Qc8 Ra8 Qg8 Rd8 Qh8
2N1Q2q/3pp1r1/3qQNnB/4nK2/5B2/2Q1PpNP/QP1brqk1/b6b b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h5 g4 f4 g5 Nh6 Ra3 Ng8 Rg3 Qc7 Rg2 Qd8 Rg4 hxg4 e3 g6 Be2 f3 Nh3 fxe2 f4 Na6 f5 Qc7 f6 Qb6 Rf1 Nb8 Rf5 gxf5 Kd2 Qd8 Kd3 Kf7 c4 Ke6 b6 Ke5 g6 e1Q b7 a5 c6 f4 c7 a4 c5 g3 c6 a3 f7 a2 g7 a1B Qb3 g2 Qc4 g1Q Nd2 Qd1 Nf2 Nf6 g8Q Ng4 Qa2 Bg7 Nh1 Qf2 f8B Kf5 Qgb3 Bc3 Qe6+ Kg5 Ke4 Kh4 Ng3 Kh3 Bg7 Kg2 Kf5 Ne5 Bh6 Ng6 Nde4 Qd6 Nf6 Bd2 h3 Rh7 Bg7 Qh8 Bh6 Bb4 Bd2 Rg7 Be1 Bd2 Kg5 Ra3 Kg4 Rc3 Kf5 Qf3 Bf2 Rc2 Bg1 Qf2 Bh2 Na6 b8Q Nc5 Qbb3 Bb7 c8Q Nd3 c7 Nde5 Qba3 Be1 Qc5 Re2 Qc3 Bd2 Qe8 Bd5 Nge4 Kf1 c8N Ba8 Nc5 Bh1 Nce4 f3 B2f4 Kg2 Ng3
1b1Kn2q/1P1B3R/3RB1kp/Q1r1bpn1/1r3r2/p4RPQ/P1RB4/b3r3 b - - 0 1 legal: proof: e4 e5 f4 b5 fxe5 h5 c4 bxc4 e6 h4 d3 Bb7 e5 Be4 dxe4 Qe7 Qe2 Qf6 Qd1 Qd8 Nc3 Qg5 Nce2 Qe7 g3 h3 Nf4 Qg5 Ng2 hxg2 h4 Qd8 h5 Na6 h6 Rc8 h7 Bc5 Nf3 Bf8 Nd4 Ra8 Nf5 Nb8 Nh6 gxh6 Kd2 g1B Kc3 c5 b4 a5 b5 d5 e7 f5 b6 Kf7 e8R a4 e6+ Kg6 e5 a3 e7 d4+ Kd2 c3+ Kd3 c4+ Ke2 c2 Kf3 c3 Kf4 d3 e6 d2 Ke5 Nd7+ Kd6 Bg7 Rh2 Ra4 Qe1 d1R+ Bd2 c1R Bc4 c2 b7 Nf8+ Kc6 B1d4 Re2 Qa8 Kc7 Rb4 Rd8 Nf6 Rd6 Rg8 h8R Be5 Rh7 Qe8 Qh1 Re1 Qh3 Bh8 Re3 Qa8 Rf3 Ne8+ Kc6 Qd8 Rb1 Ba1 Rb2 Be5 Bd5 Rf4 Bb3 Rb1 Bd5 c1B Rc2 Rbb4 Bb3 Rg7 Bc4 Nc7 e8Q+ Rf7 e7+ Nfe6 Qd7 Qh8 Qd8 Ne8 Kd7 Rf6 Bd5 Ng5 Qa5 Bcb2 Bg8 Bbd4 Kd8 Ba7 Rdd3 Rc6 Be6 Bab8 Rd6 Rc5 Rf7 Nf6+ e8B Ng8 B8d7 Nf6+ Ke7 Ne8 Kd8 Rc6 Re7 Rc5 Rh7
Q1q1r3/Q6P/4RKpq/NN2r3/Q1b5/r3p2p/1q1bP2P/nRr1NkQ1 b - - 1 2 legal: proof: d4 b5 g4 c5 a4 cxd4 axb5 f6 g5 a6 b6 Kf7 g6+ Ke8 Bg5 fxg5 b4 h6 b5 Nc6 b7 Ne5 b6 Ng4 Bg2 N4f6 Bc6 Nh7 Bb5 axb5 gxh7 Ra7 Kd2 Ra2 Ke1 Ra8 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kd3 Ke5 b8N Kf4 c4 e5 c5 g6 c6 e4+ Kc2 d3+ Kc3 h5 Kd4 g4 b7 g3 c7 h4 f3 g2 Ra3 d2 Qf1 d1R+ Nd2 b4 Rb3 h3 Qf2 Nf6 Rb1 b3 Qf1 b2 Nc6 Rc1 b8Q Be6 Qb5 Ng4 c8Q Ne3 Qb4 Ra3 Qa8 Qc8 Qba4 Bb4 Na5 Re8 Ndc4 Bd2 Ra1 b1Q Ra2 Qbb8 Rc2 Qb2+ Rc3 Bg8 Nd6 Re5 Qa7 Re8 Qc6 Be6 Nb5 Nc2+ Kc5 d4 Kd6 Ba2 Re3 d3 Qc4 Bb3 Qa4 Na1 Qe1 Bc4 Qf1 Kg5 f4+ Kg4 Nf3 g1R f5 Kf4 f6 Rg5 f7 Rge5 Qa8 Be1 Qg1 d2 Qa7 d1Q+ Nbd4 Bc3 Ne1 Bd2 Nb5 Qdb3 Nd4 Qbb7 f8Q+ Qf7 Qg8 Qg7 Nb5 Qh6 Rc3 Bf7 Rc6 Be6 Rb6 Bc4 Qd5 Bb3 Qda8 Bc4 Qg4+ Ke3 Rf1 Bc3 Qg1+ Kd2 Rf6 e3 Re6 Rf5 Nd4 Re5 Ng2 Qc2 Rb1 Qb2 Nb5 Rf8 Ke7 Re8+ Kf6 Bb4 Nh4 Bc3 Qg5 Ke1 Nf3+ Kf1 Ne1 Bd2 Qg1+
qN1n1K2/1R1kr2r/2q1NP1P/4Rn2/1p6/q2pn2b/pQ1P1N1n/RQ3N2 b - - 0 1 illegal: No possible last move, all moves rejected
5n2/5p2/PB1q2N1/2Qp3n/nNpQPr2/K1Pq2nQ/2Bk1BrQ/5rb1 b - - 0 1 legal: proof: d4 e5 dxe5 g5 e6 h6 a4 b6 g4 Ba6 h4 Rh7 e4 Rh8 Rh3 Bc8 Rf3 a5 b4 axb4 Rf4 Ba6 f3 Bd3 e5 Be4 fxe4 gxf4 g5 h5 Ra3 Ra5 Rg3 Ra8 Rg4 hxg4 Kd2 Ke7 a5 d5 h5 c5 h6 g3 g6 b5 h7 c4 g7 b3 Kc3 b4+ Kb2 g2 a6 f3 Na3 f2 Qd4 Nf6 g8Q Nbd7 Bd2 Nh5 Nf3 g1R Be2 f1N Be1 Nfg3 Bd1 Rf1 Bf2 Bg7 Nh4 Nf8 Qc5+ Qd6 Qd4 Bh6 Qg4 Be3 Qh3 Rg8 h8B Rg4 Bg7 Rf4 Bh6 Nh7 Bg7 Rg8 Bh8 Nf8 Ng6+ Kd8 e7+ Kc7 e6 Kc6 Qc3 Kc5 e8Q Bd4 e7 Rg7 Qb8 Rg8 Be1 Bg1 e8Q Rg7 Qe7 Rg8 Ka1 b2+ Ka2 b1N Kb2 b3 Qd4+ Kc6 Bf6 Nc3 Bf2 Rg7 Qea7 Rg8 Bd8 Na4+ Kb1 b2 Ka2 Rg7 Bb6 Rg8 Nb1 Kb5 Na3+ Kb4 Qc5+ Kc3 Qbc7 Kd2 c3 Qf6 Nc2 b1Q+ Ka3 Qc6 Nb4 Qd3 Bc2 Qf6 Qe5 Qd6 Qac7 Rg7 Qed4 Ne2 Nh8 Rg2 Ng6 Neg3 Qb8 Nh7 Qbh8 Nf8 Qh2 Ne6 Qhc8 Nf8 Qch3
1Rq2q2/P2r1Q1p/p2R4/bR1P1B1b/k1n5/1BB4p/Pq3Q1B/2b2Kbr b - - 0 1 illegal: No possible last move, all moves rejected
3rkN2/K1p1PnPn/NpQn4/q4N2/RP3R2/1N4r1/p2r1b1R/3n1r1Q b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 g5 f4 exf4 a5 b6 a6 Bb7 axb7 Qf6 Kf2 Qd6 Ke1 Qd8 b3 g4 Ba3 g3 Bc5 Qd6 Bf2 Qd8 Qc2 gxf2+ Kd1 h5 g4 Nh6 g5 Rh7 Kc1 Ng8 Bh3 Rh8 Bg4 hxg4 Qd1 Bd6 Kb2 Bb4 Kc1 Bf8 Kc2 f1R Kd3 f5 Kc4 a5 Kb5 g3 e4 g2 h4 f3 d4 a4 g6 f4 e5 a3 e6 f2 g7 f3 h5 Be7 h6 Nf6 h7 Na6 b8N Qd6 b4 Rf8 h8Q Nh5 Qc2 Nf6 Rh2 Qe5 Ne2 g1R Ng3 Bc5 d6 Nh7 Nf5 Rg3 e7 a2 d5 Rd1 Nd2 f1N Nb3 f2 Qc3 Rd2 d7+ Kf7 d8R Ne3 d6 f1N d7 Nc4 Re1 Nfe3 Rf1 Nd1 Rf4 Bf2+ Kc6 Qa5 Kb7 Ne5 Qc6 Nf6 Qh6 Nh7 Rc8 Rd8 Qh1 Rf8 d8N+ Ke8 Qd6 Rf6 Qc5 Nf7 Ne6+ Rd8 Nf8 Rd6 Qc4 Rd2 Kc6 Nc5 Na6 Ne4 Kb7 Rb8+ Ka7 Ned6 Nh6 Nfg5 Ng6 Qa4 Rg4 Bc5 Qce4 Kd7 Qc6+ Ke6 Rd4 Rf8 Rd8 Rff3 Nf5 Kf7 Nf8 Rf1 Rf4 Bd4 Rc8 Qb5 Nac5 Bf2 Rd8 Ne8 Rd3 Nd6 Na6 Rd8 Nbc5 Qa4 Ra3 Qa5 Qa8 Ke8 Ra4 Ngf7 Nb3 Rh3 Qaf3 Rg3 Qc6+
k7/1q2P2p/p1Bn1N1Q/1PKbb3/7N/Ppbr1pB1/q2nQ1r1/Q5NQ b - - 0 1 legal: proof: f4 a5 h4 e5 c4 d5 cxd5 g5 hxg5 exf4 g4 Qd6 b4 Na6 b5 Nb8 a3 Nd7 Rh6 Nb8 Rg6 Qe7 Ra6 bxa6 Ra2 Qd6 Rb2 Qd8 Rb4 axb4 Kf2 Kd7 e4 c5 d4 Kc7 g6 Kb7 g7 f5 e5 b3 e6 c4 e7 f3 Ke3 c3 g5 c2 d6 f2 d7 Nf6 g8N Qc7 d8Q Ne4 g6 Be6 g7 Nd7 d5 f4+ Kd4 Nd2 d6 Nc5 d7 Nce4 Nf6 Bd5 g8Q Nd6 Qg6 Rg8 Bg2 f1Q Qh6 Bg7 Qe2 Ra7 Bb2 c1B Be4 Qb8 Kc5 Ka8 Be5 Qg2 Qa5 Bb2 d8Q Rb7 Qc3 Rd7 Qb6 Qa7 Qh1 Qb7 Qc1 Bc3 Qc6 Nf1 Nd2 Rdd8 Ndf3 Nd2 Nh4 f3 Bg3 Qh2 Nh5 Bge5 Qa1 Rg5 Bf2 Rg2 Bg3 Qh3 Nf6 Qf5 Bb1 Qc2 Qb6 Qa2 Bg6 Rg8 Be8 Rg4 Bc6 Rd4 Qc7 Rd3 Qd7 Bb2 Qe6 Bec3 Q6e3 Be5 Qf4 Bbc3 Qh6
3b1RK1/1pkq2p1/1PB2QRr/r1bR1BP1/pb5P/4p3/1B1npR2/1Qr5 b - - 1 2 illegal: No possible last move, all moves rejected
2Q3b1/2Rq2p1/b1Q1p2N/N1n1Qp1K/1qPk2P1/5p1P/nNrb3p/2R4Q b - - 0 1 illegal: No proof kernel
5Q2/r1p2q2/n1n2bR1/n2N2Q1/1k1bR2p/r1R1P1p1/1NPr2PQ/1K1Qb2b b - - 0 1 illegal: No proof kernel
1b1N2q1/1b2QQ1r/2Np1pb1/1b1P1P2/P1nk1Kn1/6NR/r1RN2p1/2Qb3q b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 c5 Bf4 e5 Na3 e4 Nb1 h6 Bd6 h5 gxh5 b3 Bh3 b2 Be6 Qf6 Bc4 Qd8 Bd3 exd3 Bf4 Ra4 Bd2 Ra8 Bb4 cxb4 Kd2 Ke7 Ke3 Kd6 c4 b5 a4 g5 f4 b3 h4 d2 h6 f6 h5 b4 c5+ Kd5 c6 g4 c7 g3 h7 g2 h6 Nc6 Qc1 d1B Nd2 b1Q Rh3 b2 Ra2 Bb7 c8N b3 Na7 Ne5 Nc6 Nc4+ Kf3 Rc8 f5 Bd6 Kg4 Bb8 Kf3 d6 Kf4 Rc7 e3 Bh5 Ne2 Bg6 Ng3 Qa1 Rh1 b1B Rc2 b2 Rh4 Ne7 Rh3 Re8 h8Q Ng8 h7 Nh6 Qg7 Ng4 h8N Rf7 Rc3 Bd3 Rc2 b1B Qf8 Qc8 Qe7 Rh7 Nf7 Qe6 Nfd8 Qg8 Qf7+ Re6 Qe7 Be2 Qf7 Bd1 Ra2 Nh2 Nde4 Nb6 Qc2 Bf3 Qd1 Kc4 d5 Bd3 Qd2 Qh1 Qc1+ Bc2 Rb2 Be2 Ra2 Ng4 Rb2 Ba6 Ra2 Re7 Rb2 Rb7 Nd2+ Kd3 e4 Bcd1 e5 Bf1 Ne7 Kd4 e6 Rc7 Ra2 Bfb5 Rb2 Rc2 Nec6+ Kc5 e7 Bb7 e8Q Nc4 Ne5 Kd4 Qee7 Rc3 Ra2 Ra3 Rc2 Ra2 Nec6+
6bn/1pQ3r1/1R3RR1/pQ1P3q/P4q1B/k3bR2/qPB1Knbp/1r3Bq1 b - - 0 1 illegal: Other
1r3B1Q/1q2b2Q/brBpnP1Q/p3p3/Q3Bp1n/r4P1p/k2P2p1/2NK1N2 b - - 0 1 illegal: No proof kernel
3BnRK1/pBr3P1/P1rQP3/3B1BR1/B7/3q1b2/4pppB/qkn1n3 b - - 0 1 legal: proof: d4 c5 b4 e5 bxc5 Qh4 dxe5 Qd8 f4 d5 e4 dxe4 e6 Bd6 Ne2 Bc7 Ng1 Be5 fxe5 g5 g4 Qd6 Nc3 Qd8 Nce2 h6 Nf4 gxf4 Nh3 h5 g5 Nc6 Nf2 Nb8 Ng4 hxg4 Kf2 Ke7 h4 f5 a4 b5 c4 f3 Ke3 g3 Kf4 e3 a5 b4 c6 g2 c5 b3 a6 b2 h5 b1N c7 f2 g6 Bb7 Kg5 f4 c8B f3 c6 Qd6 c7 Rh7 h6 Qd3 Ra5 Nc6 Rd5 Rg7 h7 Na5 h8B Nf6 Kh6 Nd2 Bd7 Bc6 c8B Nab3 Bb7 Rc8 Be2 Ne8 Rf1 Rf7 Rb5 Rf6 Kh7 Rc7 Kg8 Bd5 Bb2 Nc1 Bg7 Be4 Bh6 Bc6 g7 Be4 Bf4 Bd5 Rh1 f1Q Bh2 f2 Bf3 e2 Ba1 Bc6 Bd5 Nf3 Bd4 Qe1 Bb6 Qec3 Qd2 Qa1 Rd1 Ne1 Qh6 Qf5 Rd4 Rg6 Rf4 Qd3 Rf8 Rf6 Ba2 Bf3 Bad5 Rf4 Ra5 Rfc4 Ba4 R4c6 Rb5 Kd8 e7+ Kd7 Qf4 Rc8 Bd8 R8c7 Be4 Ke6 Ra5 Qb5 Bf5+ Kd5 e6 Kc5 Qd6+ Kc4 Bb3+ Kc3 Bd5 Qd3 Rc5+ Kb2 Ra5 Rd7 Rc5 Kb1 Ra5 Nc7 e8B Rf7 Bd7 Ne8 Rc5 Rc8 Ba4 Rfc7 Rc4 Rc6 Rg4 R8c7 Rg5
3bb1Kb/1n2QnN1/3b2kP/3Rn3/2n1RR1R/1P2rRP1/2N1q1q1/R2rb3 b - - 0 1 legal: proof: c4 e5 f4 exf4 g3 g5 b3 h5 Bg2 d5 cxd5 h4 Bb2 h3 a4 hxg2 Be5 b5 axb5 f3 Bf4 gxf4 Qc1 f2+ Kd1 Qh4 Qc2 Qf6 Kc1 Qd6 Qd1 Qd8 Kb2 f1Q Kc3 c5 Kc4 a5 h4 f5 d4 Kf7 b6 f3 h5 f2 d6 f4 Kd5 c4 e4 c3 e5 a4 b7 a3 d7 f3 Nd2 c2 Rh3 c1B Ne2 g1B Nf4 a2 Rb1 a1B Ng2 Na6 b8R Nh6 Rh4 Nc5 Nf4 Qe2 Qe1 f1N Ne6 f2 Rb4 Bd6 Ng7 Nb7 Nf3 Nh2 e6+ Kf6 e7 f1N e8R Nf7 h6 Bf2 Re3 Ng4 Re4 Kg6 Ke6 Nge5 d5 Bg5 Nd4 Nd2 Nc2 Ndc4 Rd1 Bad4 Ra1 Qf8 Rba4 Bd8 Qb4 Be1 Ref4 Bb8 Qe7 Ra5 d6 Rd5 Re4 Bb2 Ref4 Rd1 Rb4 Qe8 Rf3 Qg2 Rhf4 Nd2 Rbe4 Ndc4 Rh4 Nba5 Ref4 Ba6 Re4 Bb5 Rhf4 Nb7 Rh4 Bda5 d8R Bbc7 d7 Bd6 Ra8 Bd8 R8a4 Nd3 Rd4 Bdb4 Nf5 Na3 Rd6 Bda5 Rdd4 Nfd6 d8R Rf8 Rdf4 Bh8 Rd7 Bd8 Ng7 Rf6+ Kd5 Re6 Qf8 Re2 Ra5 Nac4 Rc7 Qe3 Re7 Be8 Ree4 Nde5+ Ke6 Qef2 Qe7 Re3 Rd5 Qe2 Qd7 Bb6 Ke7 Bd8+ Kf8 Ndf7+ Kg8 Bd6 Qe7
b2Rr3/N2q1k2/1nn3N1/6KR/N2P4/Prp1r1B1/3PNNq1/bbN1b1r1 b - - 0 1 legal: proof: e4 d5 b4 f5 exf5 g5 b5 d4 c3 a6 cxd4 axb5 Bc4 b4 Be2 Qd6 Bf1 Qd8 f4 h6 g4 Kf7 f6 Ke8 f5 Qd7 Bh3 Qd8 Qf3 h5 Qf4 gxf4 g5 Ra7 Bg4 hxg4 Nf3 Ra4 Ng1 Ra8 Ke2 e5 h4 b5 g6 c5 g7 e4 h5 f3+ Ke3 f2 Kf4 f1Q+ Kg5 c4 h6 e3 h7 b3 Nc3 g3 Rh5 e2 Ne4 e1B Ne2 b2 Nf2 b1R Ba3 c3 Bd6 b4 Nc1 g2 Bg3 Ne7 g8N Nec6 Ne7 Bb7 Nc8 g1R Na7 Qd7 f7+ Ke7 f6+ Ke6 Rh4 b3 Rh5 Ba3 f8N+ Kf7 Ne6 b2 Nf4 Re8 Nfe2 Re3 h8N+ Ke6 Nb5 Qg2 Ng6 Kf7 Na7 Qc8 Ngf4 Nd7 Ne6 Nb6 Nc5 Qd7 Na4 Rf8 Kf4 Rfe8 Kg5 Ke6 f7 Ba8 f8N+ Kf7 Ncd3 Rc1 Ng6 b1B Nef4 Rd1 Ne2 Bb2 a3 Rc1 Ra2 Ba1 Rb2 Rc2 Rb4 Rb2 Ndc1 Rb3 Rb5 Nc8 Rb8 Nb6 Rd8
nr6/2bPK3/1qb1np1N/1n4Qq/rn1NP1P1/5rRR/3rNk2/N3NN2 b - - 0 1 legal: proof: c4 e5 f4 exf4 g3 g5 b3 h5 Bg2 d5 cxd5 h4 Bb2 h3 a4 hxg2 Be5 b5 axb5 f3 Bf4 gxf4 Qc1 f2+ Kd1 Qh4 Qc2 Qf6 Kc1 Qd6 Qd1 Qd8 Kb2 Ke7 Kc3 Kf6 Kc4 Kf5 h4 Kg4 d4 f1Q d6 c5 Kd5 a5 e4+ f3 h5 a4 b6 a3 b7 a2 h6 c4 b4 f6 b5 c3 b6 c2 h7 c1R Nd2 Ra6 Rh3 Nc6 b8N Qe2 b7 f2 Ngf3 g1N Nd7 f1R Ke6 Nb4 b8N Ra4 d5 Bb7 Nc5 Rc2 Qc1 Ne7 Nc6 Nc8 Ncb3 Nb6 Rb1 Rg8 h8N a1N Ng6 Na8 Ncd4 Bc6 Nf4 Qb6 Kf7 Bh6 Ke7 Rb8 Rb2 Rf2 Ne1 Nf3 Nf1 Ng5 Ra2 Rb2 Ra3 Nac2 Na1 Ne6 Qd2 Qeb5 Nfe2 Bf4 Rf3 Na3 Rc3 Kg5 g4 Ra2 Rcg3 Rf3 d7 Q5c5+ d6 Nb5 d8N Qf5 Qd3 Rd2 d7 Bc7 Qb3 Qe5 Qd5 Qf5 Nc1 Kf4 Nf7 Qg5 Nh6 Qh5 Nh2 Ke3 Nf1+ Kf2 Nce2 Rc2 Qf5 Rd2 Qg5
3B3r/1p3K2/bR3pBb/4BB1p/1r1P4/Pn4Rk/1b3P1b/BBnN2nn b - - 0 1 illegal: No proof kernel
N1n1QN2/2q1n1Kp/n2NN3/3N1rRb/1pR4P/2p2N1P/bbP3b1/3r1k1r b - - 0 1 illegal: No proof kernel
R3RrQn/3k4/rq2q1P1/2N5/N3r3/1n1N1NPP/1Rnp2rp/1R1n1K2 b - - 0 1 legal: proof: e4 c5 a4 g5 d4 b5 axb5 d5 h3 g4 Qe2 Be6 Qf3 cxd4 Qd1 d3 Ra6 d4 Ra1 Bd5 exd5 Qc8 Be2 Qd7 Bf1 Qd8 Be2 h5 Bf4 Rh6 Bh2 g3 Bf3 gxh2 g4 Rc6 g5 Rh6 Be2 Rh8 Bg4 hxg4 Kd2 g3 Ke1 g2 Ra6 Bg7 Ra2 Be5 Ra1 Bg3 fxg3 Rh5 Qd2 Rh6 Qd1 Rh8 b4 a5 c4 e5 b6 f5 b5 e4 d6 f4 b7 a4 c5 d2+ Kf2 e3+ Ke2 a3 g6 d3+ Kf3 a2 b6 e2 Kf2 e1R c6 f3 c7 Nd7 c8R Nc5 b8R Re4 b7 Kd7 Nc3 Ra6 Na4 Qb6 Re8 Nh6 Qb3 Rf8 Qg8 Nf7 Rb1 a1Q Ra8 Nh8 Rb4 Qa2 Rb2 Kc6 d7 Qe6 d8N+ Kd7 Ne2 g1R Nf4 Rg2+ Kf1 d1N b8N+ Kc7 Nb7 f2 Nd7 d2 Ne5 Nb3 Nf3 Kd7 Nd3 Ne3+ Ke2 f1N+ Nf2 Rg1 Nd3 Nc2+ Kd1 Nfe3+ Ke2 Re1+ Kf2 Nd1+ Kg2 R1e3 Re1 Re2+ Kf1 Nc3 Rc1 Nd1 Rcb1 Rg2 Nbc5+
1b1BK1n1/rpR3pp/B7/R3k2n/B2P3P/P2p2nq/1B1q2Q1/1R1R1b2 b - - 0 1 illegal: No possible last move
3qB3/np3qNp/1qp2N2/B1Pp2PN/2B4B/rP1K4/Rq6/b2k1Nq1 b - - 1 2 legal: proof: d4 e5 b3 exd4 Qd3 a5 Qf3 a4 Qc3 a3 e4 Nf6 f4 Rg8 f5 Ra6 e5 Rh8 Qb2 axb2 a4 Re6 fxe6 Ng8 a5 g5 a6 Qf6 a7 Ke7 axb8B Ke8 Na3 Qf4 Bc4 Kd8 Be3 Be7 Kd2 Bc5 Rf1 Qf6 Ke1 Qh6 Bc1 Bf8 Nb1 Qf6 Rf4 Ke8 Bf1 Qd8 g3 gxf4 g4 d6 h3 Bd7 g5 Bb5 Nc3 Be2 Nb1 Bg4 hxg4 Qf6 Bd3 Qe7 Bf1 Qd8 Ke2 Ke7 c4 f5 g6 f3+ Kd3 f4 g7 f2 c5 d5 g5 f3 Nd2 c6 Be2 f1Q Rh5 f2 Ndf3 b1Q+ Kd2 d3 Nh3 Qb2+ Ke3 d2 Nf4 d1Q Rh2 Qfe1 Nd2 f1Q Nh5 Qf7 Nf1 Qea5 Bc4 Qab6 Rc2 Qg4 Kd3 Qg1 Nf4 Nh6 Rf2 Nf5 Bd2 Nd4 Nh5 Nb5 Ba5 Na7 Re2 Qc1 Ra2 Qb2 g8B Bg7 Bd6+ Ke8 e7 Kd7 e8N Ke6 Nef6 Kf5 e6 Qh1 e7 Qg1 Nd7 Kg4 e8N Kf3 Bg3 Be5 Neg7 Bc3 Bh2 Kf2 Bf4 Ke1 Bg3+ Kd1 Be1 Qff8 Be6 Qf7 Ndf6 Re8 Bd7 Re4 Bb5 Ra4 Bc4 Ra3 Be8 Qb1+ Rc2 Ba1 Bh4 Qc1 Ra2 Qb2 Ba6 Nc8 Bb5 Na7 Bc4
nnqqb1r1/4n2Q/NN4N1/RrqR1R1N/4PbK1/P1r5/r3P3/Rk3n2 b - - 0 1 illegal: No possible last move
K1n2nq1/B7/nq1b2pb/b3N1r1/R1BrkP2/5qPR/R4PB1/2R3bB b - - 0 1 legal: proof: d4 a5 b4 axb4 g3 h5 Bd2 c5 dxc5 f5 Qc1 b6 Nc3 h4 Ne4 h3 Qa3 fxe4 Qf3 Ba6 Qg2 hxg2 Bf4 Bc4 Bc1 Be6 Rb1 Bg4 Ra1 Bf3 exf3 Qc8 Ne2 Qc7 Ng1 Qd8 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 e5 h4 g6 a4 e3 c4 e4 f4 e2 c6 e1B a5 e3 a6 b3 c7 e2 c8R b2 c5 b1N c6 b5 c7 b4 h5 b3 a7 b2 h6 Nd2 h7 b1Q Ra3 Nf3 Ra5 Nd4 Ra4 Ne6 Nh3 g1B Ng5 Na6 Re4 Ne7+ Kd6 Bh6 Rh3 Nf8 Be3 Bb4+ Bc5 e1B Bc4 Ba3 Nf7 Ba5 Ne5 Qb6+ Nc6 Rg8 h8R Rb8 a8B Rb7 Rb8 Nc8+ Kd5 d6 Ne5 Rg7 Re2 Rd7 Ra2 Ra7 Bb7 Qe8 Ra8 Qe6+ Kd4 Qg8 Bg2 d5 Rh1 Bg7 R8h3 Bh6 Ke3 d4+ Kd3 Kf6 Ke4 d3 Be3 d2 Bd4 Rf7 Kd5 Kf5 Be3 d1Q+ Bd4 Qbb3 Kc6 Rd7 Bc5 Rb7 Ba7 Bd6 Ra4 Rb5 Ra2 Nb6 Kb7 Rd5 Ra4 Qdf3 Ra2 Rd8 c8B+ Ke4 Bd7 Qe3 Bc6 Nc8 Ra4 Bh2 Rc1 Bg1 Rb8 Qb6+ Ka8 Qc7 Rb2 Qb6 Rba2 Rd7 B6b5 Rd4 Bh1 Rf7 Bf1 Rf5 Bbc4 Rg5 Bfg2
1b1Nr3/1k2Nn2/1pPRpP2/2b4K/PN1R3N/B2p3b/R1r1r3/2qn1n1R b - - 0 1 illegal: No possible last move
1nB4B/Pbq2pnB/2pN1r1p/1NP2Q2/2B5/k4P2/rpKp1Nrb/3N3n b - - 0 1 legal: proof: d4 e5 dxe5 a5 a4 h5 b4 axb4 g4 Ne7 g5 Ng8 Ra3 Nc6 Ra2 Nb8 h4 Bd6 Ra3 Qe7 Rg3 Bc5 Rg4 hxg4 h5 Bd6 h6 Qd8 h7 Bf8 Rh6 gxh6 Kd2 Ke7 e4 b5 c4 d5 e6 Kd6 e5+ Kc5 f3 b3 g6 Kb4 c5 c6 e7 g3 e8N b2 g7 g2 e6 d4 a5 d3 a6 Qe7 Nd6 Bb7 Nc3 b1R Qc2 Qc7 e7 Rb2 e8B Ne7 Nd1 Nf5 Ne2 g1N Nd4 Nh3 Bd7 Nf2 Bc8 Rg8 h8N Ka3 Ng6 b4 Nf4 b3 Nh3 Nh1 Nhf2 Be7 Kc3 Bf6 Bg5 Be5 Bf6 Bh2 a7 d2 Qb1 Ra2 Bc4 b2 Kc2 Rd8 g8B Ng7 Bh7 Re8 Kc3 Re6 Be5 Rg6 Qf5 Rf6 Kc2 Na6 B8e6 Rg8 Bc8 Nb8 Ne2 Ne8 Nec3 Rg2 Bd4 Rfg6 Bg7 Rf6 Bh8 Ng7 Ncb5+
B3KR2/q2RP3/5Q2/b2rRr2/6R1/b1qqQPPb/1nn3pk/2n1Q1R1 b - - 0 1 legal: proof: d4 b5 e4 d5 a4 e5 dxe5 f6 axb5 Kf7 c4 d4 e6+ Kg6 e5 d3 e7 Qd4 e6 Qd5 Bf4 Qd8 Be5 d2+ Ke2 Nh6 Qa4 d1B+ Ke1 Bf3 Qd1 Bd5 cxd5 Ng8 f3 Kf5 Bf4 h5 Qc1 g5 Be3 Ke5 Nc3 g4 Nh3 g3 Nf2 h4 Bd4+ Kd6 Be5+ fxe5 Ne2 gxf2+ Kd2 Bg7 Qd1 Bf8 g3 h3 Nf4 Nd7 Ng2 hxg2 Ke2 Nb8 Ke3 Nh6 Kd2 Ng8 Kc3 c5 Kc4 a5 e8R e4 b4 Ke5 h4 e3 h5 e2 b6 e1B Kb5 a4 h6 c4 d6 a3 d7 c3 h7 c2 b7 c1N Qb3 a2 Be2 f1Q Qb1 Qf2 Bd3 Nf6 Bf5 Nh5 Rh4 Nf4 Rg4 Nfd3 Be4 Nc6 b8Q+ Kd4 Qe5+ Ke3 Re7 Rg8 h8Q Nb2 Qhf6 Rg5 Kc5 Bd2 Kd6 Ra5 b5 Nb4 b6 Rf5 b7 Nc2 b8R Rd5+ Kc6 Bc3 Qf4+ Ke2 Qe3+ Kf1 Re8 Kg1 e7 Kh2 Rb5 Bg7 Rf8 Ba5 Rc5 Qe1 Rb5 Qc3+ Rc5 Nb3 Qbe1 Nc1 Rb1 Qd4 Rb5 Qa7 Rc5 a1Q Rb5 Rd4 Re5 Qa3 Bd5 Qc3+ Kd6 Rd1 Ke6 Bh6 Ba8 Rd5 Kf7 Bf4 Re4 Bb8 Re5 Bd6 Ra1 Ba3 Rb1 Qdb6 d8R Qbd4 Ke8 Be6 Rd7 Qdd3 Rb4 Rh5 Rbe4 Bh3 Rg4 Rf5 Q1f2 Nb3 Rg1 Nc1 Qfe1
1B1bQK2/p2rPB1B/1q1r2bP/1B5q/3Q1b2/4P1Nn/1bkB4/1nQ4q b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 d4 d5 dxc5 e4 c4 e3 c6 Qd7 c5 Qf5 fxe3 Ba6 e4 Bc8 e5 Qe6 Ra2 Qf6 Rc2 Qd6 Rc4 Qd8 g4 dxc4 h4 g6 Nc3 g5 Nd5 h6 Nf4 gxf4 g5 h5 Rh3 Qd7 Rg3 Qd8 Rg4 hxg4 Kf2 Ke7 b6 Ke6 b5 Kf5 e6 Ke4 c7 f5 g6 c3 e3 c2 c6 g3+ Ke2 f3+ Ke1 f2+ Ke2 f4 g7 g2 b7 Nd7 b8Q f3+ Kd2 Ne7 Kc3 Ne5 Kb4 N7g6+ Qd6 Be7 Kc5 Rh6 g8B Nc4 h5 Na3 b6 Nb1 b7 Nf4 Bc4 f1Q Bb5 f2 Ne2 g1B Nd4 Nh3 Ne2 Bh2 Bf7 Bf4 Bd2 Bh4 Qd7 c1B Qe8 Bd7 c8Q Qh1 Qd6 f1Q b8B Bb2 c7 Qd1 Qb6 Rh7 h6 Qf6 Qd6 Qg6 Qb6 Bd8 Qd6 Rg7 e7 Bf5 Kc6 Qb3 Qf6 Qh5 Qc3 Bg6 Kd7 Qb4 Ke6 Rg8 Qcd7 Qbc5 c8B Qb6+ Qd6 Rh8 Kf6 Rf8 Kg7 Rh8 Bce6 Rf8 Bg8 Rf6 Bef7 Re6 Qc5 Rd6 Kf8 Rd7 Qc1 Rd6 Bc6+ Kd3 Ng3 Rd7 Bh7 Rd6 Bc7 Rc8 Bb8 Rc7 Qg1 Rcd7 Qd4+ Kc2 Bb5 Rd5 Qf1 R5d6 Qc1+
5rrq/2Q1b3/2p2q2/3n2Qk/3P1B1n/n1PpB1PQ/1bbK2N1/4BBbB b - - 0 1 legal: proof: f4 h5 a4 b5 b4 d5 g3 d4 c3 d3 Na3 h4 Nc4 h3 Ra2 g5 axb5 e5 Rc2 e4 Nb2 dxc2 d4 Qd5 Nd3 exd3 Nf3 Ne7 Rg1 Qd7 fxg5 Qd5 Rg2 hxg2 h4 Ng8 Ng1 Qd8 e4 f5 b6 Kf7 h5 a5 b5 a4 b7 f4 b6 a3 h6 Kg6 e5 a2 e6 a1N e7 c6 e8Q+ Kf5 g6 Kg5 g7 Be6 h7 Nd7 b8B Bb3 b7 Nb6 Kd2 f3 Qe7+ Kh5 Ne2 g1B Bf4 f2 b8B Nd5 Qc7 Nh6 g8B Nf5 Be3 Be7 Be6 Rf8 h8Q+ Nh6 Qg7 Nf5 Qe1 Nh4 Bf5 Qc8 Be4 Rg8 Bh1 Qf8 Bh3 f1Q Qf2 Qd8 Qh2 Qf6 Bf1 Rf8 Qh3 Rg8 Ke1 Qc8 Bcd2 c1B Qd6 Qd8 Qc7 Nc2+ Kd1 Qdf8 Be1 Bb2 Kd2 Na3 Bfg2 Bc2 Bf1 Qg6 Nf4+ Kg5 Qh8 Qgf6 Ng2+ Kg6 Qg7+ Kh5 Qa7 Qd8 Bbf4 Rb8 Qc7 Qdf8 Qh8+ Q8h6 Qh7 Rbf8 Qg7 Qh8 Qg5+
1n2K3/b1pP2q1/R3kN2/r2N2p1/3Q1nNN/qn1b2N1/1pPQP3/2N3rb b - - 0 1 illegal: No proof kernel
k5nn/2bq3p/3QP1RB/1Qqr4/Q1b3q1/p1rQQ3/Pq1p1PQ1/2R3K1 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 g5 h4 f5 hxg5 Nh6 e5 Ng8 Bd3 Nc6 Be4 fxe4 Ke2 Nb8 Kf1 Qc7 Ke1 Qd8 d4 e6 c4 Kd7 c6+ Ke7 c5 Qc7 Na3 Qd8 Nc4 Kf7 Ne2 Ke8 Nf4 dxc4 d5 Be7 d6 Bf8 Nd5 exd5 Kf1 a5 g4 b5 g6 c3 c7 Kd7 e6+ Kc6 d7 Kb7 g7 e3 g5 e2+ Kg1 e1Q+ Kh2 c2 g6 b4 Be3 c1Q Qe2 d4 Qh5 d3 Kg2 b3 Kh2 d2 Rb1 a4 Bh6 b2 Rg1 Ra5 c6+ Ka8 Qb5 Ba6 c8Q a3 c7 Qc5 Rc1 b1Q Qa4 Qe8 d8Q Qb2 Qd6 Qd1 Qcd7 Bc4 c8Q Qg4 Qdb5 Qd7 Qd8 Be7 Q8b6 Nc6 Qd3 Ne5 Qbd6 Nf7 Kh1 Nf6 g8Q+ Bd8 Qg7 Ng8 Qgc3 Bc7 g7 Nf6 Rg3 Rc8 g8Q Nh8 Qgg6 Ng8 Kg1 Rf8 Qe3 Rf5 Qcd3 Rd5 Qge4 Ra7 Qg2 Ra6 Qab3 Ra4 Qd1 Rb4 Q1c2 Rb3 Qd1 Rc3 Qdb3 Qf4 Rg6 Qg4 Q3a4+
3kbB2/3ppn2/1rrP4/1Nq3P1/2Q1qp2/r1r1P2K/q1QNQ3/1NN1Q3 b - - 1 2 legal: proof: g4 b5 h4 b4 a4 b3 a5 Nf6 cxb3 Nc6 b4 Ng8 b5 Nb8 b4 Ba6 Rh3 Bb7 Rf3 Bc8 Rf6 gxf6 Qc2 Bh6 Qd1 Be3 f4 Bb6 axb6 Ba6 Qb3 Bb7 Qd1 Bc8 g5 h5 b7 a5 g6 Nh6 b6 Ng8 b5 Na6 Ra4 Nc5 Bh3 Ne4 Bg4 hxg4 Rb4 Ng5 fxg5 axb4 Kf2 c5 Kg2 b3 b8N b2 d4 g3 e3 c4 d5 f5 h5 c3 d6 c2 h6 f4 b7 f5 b6 f3+ Kh3 f4 h7 f2 g7 f1R Qe1 g2 Nc6 Qc7 b8Q Ra3 b7 Nh6 g8N Nf7 Na7 Kd8 Nb5 Qc5 Ne2 g1Q Nf6 Qf2 Ne4 Re8 Bd2 c1R h8Q Rcc3 Qd4 Rf8 Nc1 Qf3+ Ng3 Qe4 Qc4 Rf2 Nf1 Rg8 Na2 Rg2 Bc1 Rgc2 Qa7 Re8 b8Q Rf8 Qbb7 Rg8 Qbd5 Bb7 Qdd3 Bd5 Qaa4 Rf8 Qde2 Rg8 Nbd2 b1Q Bb2 Re8 Nc1 Qa2 Nb1 Be6+ Kh2 Bf5 Ba1 Bg6 Kh3 Rb2 Qac2 Rg8 Nd4 Rb6 Bb2 Nh6 Nfd2 Be8 Nb5 Rf8 Ba1 Rf5 Q2f2 Nf7 Qfe2 Rd5 Bb2 Rdd3 Ba1 Raa6 Bb2 Rca3 Bd4 Rdc3 Bg7 Rc6 Bh6 Rab6 Bf8
1Q6/1Qp1bRPr/7b/1br2R1r/4K1nn/k3Q1Nq/1nPP2n1/r3QRR1 b - - 0 1 legal: proof: g4 d5 e4 h5 exd5 b5 a4 f6 f4 Rh6 b3 Qd7 f5 Rh8 Bb2 Qd8 Bh3 Bd7 g5 Bc8 Bg4 hxg4 axb5 Nh6 Be5 Ng8 Nc3 fxe5 Ne4 g6 f6 Bf5 Ng3 Bc8 Nf5 gxf5 Kf2 Kd7 Ke3 Kd6 h4 Kc5 d6 Kb4 f7 a5 h5 a4 d7 g3 h6 e4 b6 e5 g6 a3 h7 a2 b7 g2 g7 f4+ Kf2 f3 Ke3 f2 Qg4 f1R Nf3 g1B+ Ke2 Nh6 Qh4 Ng4 Qh3 e3 Kd3 e2 Nd4 e1N+ Ke4 Rf5 Kd5 e4+ Ke6 e3 Qf3 Raa5 Ne2 Ka3 b4 Nd3 b5 Nc6 b6 Qh4 Ng3 e2 b8R e1N b7 Bgc5 Rg1 Bfe7 f8Q Ng2 Raf1 Nce5 Kd5 a1R Ke4 Bcd6 Qe3 Nf3 Ra8 Bg5 d8R Qh3 Rd7 Nfh4 Qf7 Rg8 h8Q Bh6 Ra7 Rf8 Qhg8 Rh5 b8Q Ba6 Qb7 Bb4 Qe1 Nb2 Qf4 Bc5 Rf7 Be7 Ra8 Be2 Rd8 Rac5 Rd5 Bb5 Rdf5 Re8 Qh7 Rh8 Qg8 Rh7 Qgb8 Rh8 Qg5 Rh7 Qge3+
1R1nnbrn/R7/3BR2r/1q1B2p1/2B1bPp1/2pR4/K1P1P2k/2Bb1bB1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g6 dxe5 Bh6 g4 Bf8 Qd4 f6 g5 f5 Qg4 fxg4 h4 Kf7 h5 Qf6 h6 Bb4+ Nd2 Ba3 Ne4 Qd8 Ng3 Bf8 Nh5 Ke8 Nh3 Qf6 N3f4 gxh5 g6 Qg5 g7 Qd8 Ng6 hxg6 Kd1 Ke7 b4 Ke6 f4 Kf5 b6 a5 b7 d5 e6 c5 b5 c4 h7 c3 b6 a4 e7 a3 e8B a2 Rb1 a1N Rb4 d4 Rh4 d3 Rb1 Qd7 Bg2 Nf6 g8R Nb3 Bh3 Nd2 Bf7 Nc4 Ba3 Nc6 Kc1 Nd8 b8B Ne8 b7 Ne5 Bg2 Qb5 Bb3 Nef7 Ra1 d2+ Kb1 d1B Bc1 Ra6 Rg7 Rg8 Bd6 Nh8 b8R Bb7 Be5 Be4 Ra7 Rc6 Bh1 Bg2 R7a6 Bf1 Ka2 g5 Bhd5 Rh6 Rh3 h4 Rd3 h3 Kb1 h2 Re6 h1B Bd6 Bhg2 Ra7 Be4 Ree7 Kf6 Ka2 Kg6 Bbc4 Kh5 Re6 Kh4 Be3 Nhf7 h8B Kg3 Bhd4 Nh8 Bc1+ Kh2 Bg1+
2R1b3/P1BR1k2/Nb1bn1n1/2PB4/PpQ2n1P/N2r4/bpr3RK/3q4 b - - 0 1 legal: proof: e4 c5 a4 a5 c4 f5 exf5 h5 g4 Nh6 gxh5 Ng8 d4 cxd4 b4 Ra6 Ra3 Ra8 Rc3 dxc3 Qb3 Rh6 bxa5 Rh8 Qb2 cxb2 f4 g5 Kf2 e5 Kg3 b5 h4 d5 f6 g4 h6 d4 h7 b4 a6 d3 f5 e4 a7 d2 Rh2 d1B Bd2 e3 Bh3 e2 Bg2 e1N Ne2 Na6 Nc1 Kf7 Bd5+ Be6 Na3 Rc8 Bf4 Nc5 Rg2 Ned3 Nb3 Ne7 Kh2 Ng6 Bc7 Rg8 h8Q Ndf4 Qh5 Bd6 Qg5 Qd7 Qh5 Rgd8 Qh6 Ne4 Nc5 Ng5 Na6 Bb3 Qh8 Ba2 Qh5 Kg8 Qh6 Bf7 Qh5 Nge6 Qh6 Nh5+ Qf4 Be8 f7+ Kg7 f8R g3+ Kh1 Ne5 Qc1 Nhf4 f6+ Kg6 f7 Kf6 Rf2 g2+ Kh2 Ng6 Rh8 Ke7 f8R g1B+ Kh1 Rb8 Rg2 Bb6 Rfg8 Kf7 Kh2 Qb5 Qf1 Qc5 Qe2 Qd4 c5 Qd1 Qb5 Rd7 Qc4 Rbd8 Bb7 Be7 Bf3 Rd2 Bb7 R8d3 Bd5 Bd6 Rf8+ Ke7 Rhg8 Rc2 Rh8 Bb5 Rc8 Kf7 Rhd8 Be8 Rd7+
2R5/Nk2QB1r/3KPqqn/b2PP2b/r5qq/2N3q1/4PnnB/1B2R2r b - - 0 1 illegal: Other
1qbR1Q2/n1q5/k1PPq3/3nP1R1/3NrnB1/1b1rB2P/N1rq2R1/b5K1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 e5 gxh5 exf4 c4 d6 Qc2 d5 axb5 cxb4 c5 Nh6 Qc3 Ng8 Qc4 dxc4 Kf2 Kd7 e4 Kc7 d4 Kb7 d5 g5 h6 a5 h3 f5 d6 b3 b6 c3 h7 g4 Bd2 f3 Bd3 g3+ Kf1 f2 Kg2 f1R Bc2 f4 Ra4 b2 Ne2 Bg7 Nd4 Rf2+ Kg1 f3 Nf5 g2 Rd4 a4 Na3 b1Q+ Bc1 Nf6 Nc4 a3 Kh2 g1N+ Kg3 a2 Nce3 a1Q Ra4 Nd5 Nf1 Nc6 Rc4 Qc7 Nd2 Re8 h8Q Qaa2 Rh2 Ka6 b7 Na7 Rg2 Ne2+ Kh2 Nef4 Bd1 c2 b8R Ba1 c6 Re2 Qh6 f2 Rc5 f1B Nb3 Qbb2 Be3 c1Q Qh8 Rc2 Bg4 Bc4 Qf8 Qd2 Nc1 Bb3 Kg1 Qh8 Nd4 Qg8 Qg7 Qb2 Na2 Qe6 Rb4 Rb8 Qf7 Rb5 Qf8 Ra5 Rb8 Ra4 Ne2 Rd4 Rcb5 Rd3 Nd4 Qbc3 Ra8 Qb4 Rc5 Qbb8 Rb5 Ne7 Rg5 Ned5 Qf6 Rh8 e5 Rh4 Qf8 Nh5 Bf3 Re4 Bg4 Nhf4 Rg3 Bd7 Qf6 Qb5 Rd8 Bc8 Rg2 Qbb8 Qf8
2rB1R1r/q1B1rNP1/r4b2/1n1nr3/2bQ1B2/R1PP2k1/2P2N1p/1K3nq1 b - - 0 1 legal: proof: e4 c5 Ke2 d5 a4 dxe4 h4 b5 axb5 f5 h5 f4 h6 f3+ Ke3 c4 Rh5 c3 Be2 fxe2 bxc3 gxh6 Rh3 h5 Rh1 h4 g4 Kf7 f4 Ke6 d3 e1Q+ Qe2 h5 b6 a5 b7 a4 f5+ Ke5 f6 a3 f7 a2 g5 h3 g6 h4 g7 Qd7 Rh2 Nf6 Bd2 Nc6 Bc1 Nd4 b8B+ Qc7 Ba3 Ba6 Bc5 Bc4 Bca7 Nb5 Rh1 e6 Nd2 Be7 Rc1 a1R f8B Ra6 Rh2 Kf5 Rg2 e5 Bb6 Qa7 Bc7 Rc8 Ngf3 Qg1+ Qf2 Nd5+ Ke2 Kf4 Rg3 e3 Bd8 e4 Re1 Bg5 Kd1 e2+ Kc1 e3 Rd1 e1R Ne4 e2 Qd4 Be7 Rg2 Bg5 Rf2 Be7 Ned2+ Kg3 Ne5 Bg5 Rf7 Bf6 Bb4 h2 B6a5 h1N Bd6 h3 Ne4+ Kf4 Rf8 h2 Bac7 Ng3 Nf7+ Kg4 Kb2 Nf1 Ra1 Kh3 Nf2+ Kg2 Ne5 Kg3 Ra4 Rd1 Ra3 e1R Qb6 Re2 Qd4 Rde1 Nf7+ Nf4 Ra2 Re7 Ra3 R1e2 Kb1 R2e6 Ne5 Nd5 Nf7+ Kf3 Bf4 Re5 Bh6 Kg3 Bf4+
1bn1rNb1/2Qp1n2/1BR4P/2nP2NR/rB4n1/bq1n1PBP/6n1/K5k1 b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 gxh5 fxe4 a4 b5 axb5 Nh6 b6 Ng8 c3 a4 Qb3 c6 Bc4 c5 b5 Nh6 Qa3 Ng8 Qb4 cxb4 Bb3 axb3 Kd1 Kf7 d4 Kf6 f3 Kf5 b7 e5 c4 g5 h3 g4 b6 b2 Kc2 e3 c5 Kf4 c6 Kg3 h6 Kf2 c7 g3 Ra7 g2 Ra1 b3+ Kc3 e4 Nd2 b1N+ Kb2 e2 Ra7 e1N Nc4 e3 Ka1 e2 Bd2 b2+ Ka2 Na6 b8B Nc3+ Kb3 b1N Kb2 Bb7 c8Q Nd1+ Ka2 Ne3 Qc5 Nc3+ Ka1 Nd3 Qa5 e1N Bh2 Nac5 Nd6 Bd5 b7 Ng4 b8B Qb6 Nf7 N3e4 Ne2 g1B Bhc7 Qb3 Bb6 Ng2 Nf4 Ne7 Ne6 Ng5 Bb4 Bh2 Rc1 Nc8 B8c7 Bfd6 Nf8 Bhg3 Rc4 Kg1 Ra6 Be6 d5 Bgf4 Re4 Bc1 Rf4 Ba3 Rf5 Bh2 Bg3 Ra7 Nd8 Bg8 Nde6 Nf7 Rh5 Ra8 Ng5 Ra7 Bge1 Bb8 Bg3 Ra8 Bd8 Ra7 Qc7 Ra8 Rd6 Ra4 Rc6 Bh7 Nfe6 Re8 Nf8 Bg8 Qe5 Ba7 Bb6 Bb8 Qc7
R2krQb1/8/pr5r/BPr2R2/q1BK1PN1/1b1n2Pn/2P2Br1/2rq2N1 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 d4 fxe4 h4 gxh4 Bh6 c5 Bxf8 cxd4 Ke2 e5 b4 d5 f4 h5 g3 e3 Kd3 h3 b6 e2 b5 e1R b7 h4 Bc5 e4+ Kd2 h2 Qf3 h3 Bc4 d3 Kc3 a6 Qf2 d4+ Kb3 d2 Be7 d1R Bd3 e3 Kc4 e2 Qf3 Rh5 Bf8 Qa5 Be7 Rc1 Bg5 Qa4+ Kd5 Be6+ Ke4 Bb3 Qf2 Nc6 b8B Nh6 Na3 Nb4 Qe3 Nf7 Be7 Rc5 Ba7 Rb8 Rb1 Rb6 Bc4 d3 Bg5 d2 Be7 d1Q Bd8 Nd3 Kd4+ Kd7 Qd2 Ng5 Qb4 Rf1 Ra1 e1R Bc7 Rf2 Bd8 Rbe6 Ba5 Rb6 Rb1 Re8 Ra1 Rcc6 Qf8 Rg2 Rb1 Kd8 Ra1 Ba2 Rb1 Rc8 Rb3 Rc5 Rc3 Ne5+ Rd3 Bb3 Rd2 Nd3 Re2 Qf1 Re5 Qd1 Rf5 Rc8 Ne2 Rc5 Re1 h1R Ng1 h2 Re7 Nh3 Rg7 Rc8 Rc7 Rh6 Bc5 Rb6 Ra7 Rc6 Nb1 Rh6 Nd2 Rh5 Ndf3 Rh6 Ne2 Re1 Ne5 h1B Ng1 Ree2 Ng4 Re5 Bcb4 Rc5 Be1 Rd2 Rg5 Bd5 Rf5 Rg2 Bf2 Bg8 Ra8+
1R4q1/2p5/K1Q1Pr1q/N2RbBPn/3nbBN1/Pq4b1/7P/1rqbk2R b - - 0 1 illegal: No possible last move
1nn4B/1P1P3b/p1nnN1P1/1n3q1r/1Nr5/1k1B1Pqr/2r2RQR/3N3K b - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 b6 fxe4 b7 Qd5 Ra3 Qd4 Ra1 Qd8 h4 g5 b4 gxh4 b5 Bd7 Rh3 Bg4 Rh1 Bc8 Bb2 e6 Ba3 a6 Bc1 Bc5 Ba3 Bb6 Bc1 Ba7 b6 Qe7 bxa7 Qd8 d4 Kd7 g4 Kd6 f3 Kd5 Kf2 h5 Kg2 c5 g5 c3 Nd2 e3 Bb2 c4 Bd3 e2 Rb1 e1Q Nb3 e5 Rc1 h3+ Kh2 c2 Ba3 c3 Bd6 h4 Nd2 e4 Bf4 e3 Be2 Qf8 Ne4 Ne7 Bg3 Nd7 Bf4 Rh5 Bd3 e2 Ra1 c1N Ra2 c2 Nc5 Nb3 Rb2 c1R Bb8 Na5 Bb1 Kc4 Ne6 Qf6 Rc2+ Kb3 Nf4 Qf2+ Ng2 e1N Ne2 Qg3+ Kg1 h2+ Kf1 h3 d5 Qff4 d6 Qf8 Rd2+ Nc2 Ngf4 Qf6 Qe1 Nd4 Nd5 Nb5 Bd3 Rc2 Nb4 Qfe5 Nc3 Qc5 Rg1 h1N Rgg2 h2 Qe2 Nf2 Nd1 Ne4 g6 Qf5 Qf2 h1R+ Qg1 R1h3 Rh2 Ne5 Qg2 Be6 Kg1 Bg8 d7 Bh7 Bd6 Rac8 a8N R8c4 Kh1 Nc8 Bf8 Ned6 Nc7 Nec6 Bh6 Nb8 Bg7 Rf4 Ne6 Rfc4 Bh8 Nac6 Rf2
q2Rr2B/1q2Pbq1/BQ2PBP1/6qp/r2Pr1kN/4q3/1Kn1N2q/r3R3 b - - 0 1 legal: proof: h4 b5 a4 bxa4 d4 g5 Kd2 gxh4 c3 e5 Qe1 exd4 Kc2 d3+ Kd1 d2 Kc2 Bh6 Qd1 Bf8 Kd3 d5 Ke3 Bf5 f4 d4+ Kf2 d3 e4 Bd7 e5 Bg7 e6 Bd4+ cxd4 Nc6 Ne2 Ne5 fxe5 Bc8 Ng1 Bb7 Nh3 Ba6 Ng1 Bc8 Ke3 Ke7 b4 a5 g4 h5 b5 f5 g5 c5 b6 a3 b7 f4+ Ke4 c4 b8B c3 g6 a2 Bh3 a4 Qe2 d1R Qb2 c2 Bg4 h3 Qb6 h2 Qb5 a3 Bc7 d2 Kd3 f3 Kc3 f2 Qb6 f1Q Bf3 Nh6 Qa7 Nf5 Bc6 Re8 Bb5 Re1 Kb3 d1Q Qb7 Qd2 Nc3 Ra4 Bd7 Re4 Bb6 Ne3 Qc7 Qf8 Qb7 Qg7 Bb5+ Qd7 Qa7 Qb7 Nce2 Qe1 Rb1 a1R Ba6 a2 Nf3 Qf2 Re1 h1Q Qb8 Qhh2 Kb2 Qfg3 Qa7 Qg5 Nh4 Bd7 Bd2 Bb5 Bc7 Bc4+ Qb6 Bd5 Kc3 Bb3 Rb2 c1Q+ Rc2 Qa3 Rb2 Nc2 Bf4 Kf8 e7+ Kg8 Bd2 Bf7+ Rb3 Kh8 e6 Qc1 Bdf4 Qe3+ Kb2 Qh7 Rb5 Kg7 Re5 Kf6 Rd5 Rc1 Rd7 Ra5 Bd3 a1Q+ Kb3 Qa4+ Kb2 Ra1 Rd8 Ra8 Bb5 Qaa7 Bc4 Qab8 Bd3 R8a4 Ba6 Q8a8 Bfd6 Qgd5 Be5+ Kg5 Bg7 Kg4 Bh8 Qdg5 Bce5 Qg7 Bf6
2qbQNNN/1PB3n1/3n1pBn/3b1rP1/r3R3/1pK1kP2/1P6/bbRb4 b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 c5 Qg4 d5 Qf4 dxe4 Qd6 Bh6 Qd4 Bf8 Qb4 cxb4 d4 Kd7 Kd2 Kd6 c4 a5 g4 h5 c5+ Kd5 b6 e5 b7 f6 c6 b3 c7 e3+ Kd3 a4 Nf3 e2 Rg1 e1Q Be3 h3 Bc1 a3 Rh1 h4 Bg5 a2 Na3 h2 Rb1 a1B Rc1 h3 Nb1 Be7 Be2 e4+ Ke3 Nh6 Nbd2 Nc6 Nh4 Na5 Rf1 h1B Bf4 h2 Ng6 Bf3 Nf8 h1B Nc4 Bf5 Ne5 Qc8 Neg6 Bd8 Bg3 Rg8 Nh8 Rg5 Rc4 Bh7 Rb4 Rf5 g5 Qb1 Kd2 e3+ Kc3 Ke4 d5+ Nc4 d6 Ra4 Bd1 e2 d7 e1N Bc2+ Nd3 Rc1 Bd1 Bh2 Kf3 Bd6 Nc5 Bg3 Rf4 Bg6 Rf5 Bh2 Ne6 Bg3 Qb8 c8N Nd6 Ne7 Ng7 Ng8 Ke2 Bh2 Bd5 f3 Ke3 Be5 Qe4 Bg3 Bc7 d8Q Qc8 Qe8 Bd8+ Qc6 Nde8 Bc7 Nd6 Ne7 Bhg8 Qe8 Bge6 Ng8 Bd7 Bh7 Bb5 Bg6 Bd3 Nf7 B3c2 Nh8 Bb1 Rxe4+
2rB2Nb/6N1/KPBQ1Rk1/3P4/R2np1P1/2q1P1q1/q1pb3r/2R1n1nn b - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 b5 Bh3 bxa4 Bf1 f5 h3 fxg4 Ra3 g3 Ra1 g2 Ra2 g5 Ra1 g4 Qc2 g3 Qd1 Bg4 hxg4 Bh6 Nc3 Bg7 Nb1 Bf8 d4 Kf7 Kd2 e5 Kc3 c5 b4 a5 f4 h5 e3 e4 f5 a3 f6 a2 d5 h4 b5 h3 b6 h2 Qc2 a4 Nh3 g1N Nf2 g2 Qb3 a3 Nd3 Nh6 Qa4 Na6 Qc2 Nb4 Nd2 Nf5 Nf3 Nd4 Qb3 Bg7 Ng5+ Kg6 f7 Qf6 f8R Rc8 Nh7 Nbc2 Bb2 Ne1 Rc1 a1Q Qb4 a2 Nf4+ Kh6 Nh5 Kg6 Re8 Qb1 Re7 a1Q Ra7 Qaa2 Ra4 Qba1 Ng5 Rh7 Nf7 Bh8 Ng7 Rh4 Nh6 Rh5 Ng8 Rh4 Kd2 c3+ Kd1 c4 Qd6 c2+ Kd2 Rh6 Kc3 Rh5 Kb4 c3 Ka5 Rh7 Rd1 c1B Bb5 c2 Ka6 Bd2 Rc1 Rh4 Ba3 Qc3 Bb4 Nh3 Bd7 g1Q Bc6 Qg3 Rf1 h1N Ba3 Ng1 Bc5 Nde2 Bd4 Rh2 Be5 Qe6 Bf6 Nd4 Bd8 Qf6 Rxf6+
2rk2R1/1n3p2/1Pr3NR/NPqnB3/p1rN2r1/Bn5P/bKQ1n2P/6b1 b - - 0 1 legal: proof: c4 b5 f4 h5 b4 e5 a3 exf4 Bb2 h4 Bc1 h3 gxh3 Ne7 Bg2 Ng8 Be4 d6 Bc2 d5 Bb3 dxc4 a4 cxb3 axb5 Rh7 Na3 Rh4 Nb1 Rh8 d4 g5 Kd2 c5 Kc3 a5 e4 c4 e5 g4 e6 f3 d5 g3 e7 a4 b6 g2 b5 f2 d6 f1N Qd2 b2 Qf2 Na6 Kc2 c3 Ra3 Nc5 Bd2 Ng3 Ne2 g1R Bf4 Nf6 Nd4 Nd5 Nd2 b1N Be5 Be6 N2b3 Ne2 Na5 Rg4 Re1 Nb7 Rb3 Kd7 e8N Rc8 Ng7 Nd2 Ngf5 Rh6 Nh4 Qc7 Ng6 Kd8 d7 Qc5 Rg1 Bd6 Rb4 Nb3 Kb1 c2+ Kb2 c1R Rg3 Ng1 Qc2 Ne2 Rc4 Bf8 Rcc3 Rhh4 Rcf3 Be7 Rf5 Rc6 Rh5 Bg5 Rh7 Be3 Rh6 Bg1 Nh8 Ke7 d8B+ Kd7 Bdf6 Rc8 Bg7 Kd8 Ng6 Rc6 Nf5 Rc4 Bf8 Rhg4 Nd4 Bf5 Qd1 Bb1 Qd3 Rc8 Qc2 Ba2 Rg2 Rf1 Rg3 Rf6 Rg2 Rfc6 Rg3 Qd6 Rg2 Qc7 Ba3 Qd6 Rg3 Qc5 Nf8 Rf4 Rg8 Rg4 Ng6+
2qB1N1Q/2nnr3/NB1RP3/b1pR4/1n1B2n1/n1PPPKb1/q1q4p/7k b - - 0 1 illegal: No proof kernel
k2Bn2N/1PQ3qb/K1PB1bp1/n2pPr2/2n1NR2/n2n1RB1/6P1/n4b2 b - - 0 1 legal: proof: d4 b5 h4 a5 a4 f5 axb5 c5 h5 cxd4 h6 g6 Rh2 Ra7 Rh1 Rb7 e4 e5 Be2 d3 Bf3 Rb6 Qd2 Rd6 Qe3 Re6 Qd4 exd4 e5 Re7 Be4 Rg7 hxg7 fxe4 Kd2 d5 b4 Kd7 c4 Kc7 f4 Kb7 c5 h5 f5 a4 b6 a3 f6 a2 f7 e3+ Ke1 h4 b5 h3 Kf1 h2 Ba3 d2 Ke2 d1N Kd3 e2 Nf3 Ka8 Nbd2 Qd7 Ne4 Nc6 Nfg5 Nf6 g8Q Ne8 Qg7 Na5 c6 Rh5 Bc5 Ne3 Raf1 a1N Rf4 Be7 f8B Nec4 Nf7 Bf6 Bfe7 Rf5 Rhf1 h1N Nh8 Qb7 Bed6 Be6 Qc7 Bg8 R1f3 Bh7 Bb4 Qa7 Be1 Qb7 Bg3 e1N+ Ke2 Nec2 Kd3 N2a3 Be7 Ncd6 Bd8 Nf2+ Kd2 d3 Kc3 d2 Kb4 d1B Kc5 Ndc4 Kb4 Qb8 b7+ Ka7 Kc5 Be2 Kb4 Qc8 b8B+ Ka8 b6 Bf1 Kc5 Qd7 Kb4 Nb1 Kb5 Qg7 Ka6 Nd3 Qd7 Nbd2 Bd6 Na3 Qc7 Ndc4 b7+
1rB1q2r/1p1bQ3/3PnN1p/1P1n2P1/7K/2BknP2/rNn1nB2/2n1R2R b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 Qb3 gxh4 Qa4+ Qd7 Qd1 Qd8 a3 a5 b3 Bg7 Ra2 Bc3 Ra1 Bb4 axb4 a4 Be2 axb3 Bd3 Bg4 Bf1 Bc8 d4 Kf7 g4 Kf6 b5 e5 f3 c5 Kf2 h3 Kg3 b2 d6 h2 d5 h6 d7 e3 d6 c4 Kh4 e2 Bg2 e1N Nd2 b1N Kh3 c3 Qc2 e4 g5+ Ke5 Kg4 Kd4 Kh3 e3 Qb3 e2 Nc4 c2 Na5 Qe8 Nc4 Nf6 Ra7 Nc3 Ra1 Kd3 Kh4 Nd5 d8B Na6 Bb2 c1N Bh3 Nc2 Bb6 e1N Bf2 Nac7 Ne2 Bd7 Ng3 Rb8 Ne4 Ne6 Nf6 Nce3 Qb4 N3e2 Bc3 N1c2 Qa4 Na2 Rae1 Nac1 Qa5 Rg8 Qd8 Rh8 Rhg1 h1R Qe7 Rh2 Rh1 Ne2d4 Bg1 Rd2 Bf2 Nde2 Bg4 Ncd4 Bh3 Ra2 Nb2+ Kc2 Qd8 Bc6 Na4 Ng7 Rh2 Kd3 Bc8 Ndc2 Qe7 Ne6 Rhh1 Bd7 Nb2+
3R1nkN/nK1R4/2nq2N1/1QR1pr1p/1BP3n1/Pnqb3P/2r2PB1/4n3 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 a5 e3 axb4 g5 f5 gxf6 Kf7 Bb2 e6 Bc1 Be7 fxe7 dxe3 Ke2 b5 Kd3 g5 Kd4 d5 Kc5 h5 e8R e5 c4 d4 h3 d3 Bg2 b3 Re6 b2 Qc2 e2 Bb7 e1N Bg2 b4 Bc6 d2 Ba4 d1N Qd3 g4 Bh6 g3 Qd6 g2 Bf8 b3 Bg7 Nc6 Qd2 Nf6 Qa5 Ne3 Qa6 Nh7 Nd2 b1N Bf8 b2 Ngf3 g1Q Qb5 Qd6+ Kb6 Kg8 Ng5 Ng4 Ndf3 Qg3 Re7 Nc3 Rd7 b1N Nf7 Nd2 Nh4 Nb3 Ng6 Ra7 Rd8 Bf5 a3 Bd3 Rd1 Rd7 Rc8 Rd8 Kb7 Qf3 Be7 Nf8 Rd2 Rh7 Nfh8 Rf7 Rg1 Rf5 Rg2 Qf6 Bb4 Qd6 Rg3 Qe3 Rf3 Qed4 Rf4 Qe3 Rd4 Qf3 Rd5 Qe3 Rc5 Qf3 Qa6 Nb5 Ra8 Nba7 Qb5 Nbd4 Bd1 Nb3 Rb8 Qe3 Bf3 Qed4 Bg2 Qc3 Ka6 Qf6 Rb7 Rd5 Rf7 Qd6 Kb7 Rd4 Re7 Re4 Rd1 Re2 Rd7 Rc2 Rd8 Bf1 Rdd5 Bd3 Rd4 Qe7+ R4d7 Qe6 Nh4 Qd6 N4g6
N2Q2K1/1kb5/2RP3N/2q2R2/P1r1r1br/r1Ppr1N1/3Prq1p/2B3Bn b - - 0 1 legal: proof: g4 d5 e4 f5 h4 a5 h5 c5 h6 c4 Rh5 d4 Rh1 Nc6 gxf5 Nb4 b3 Nd5 b4 axb4 exd5 gxh6 Bd3 h5 Be2 h4 Bh5+ Kd7 Be8+ Kc7 Ba4 Kd6 Bb3 cxb3 Nc3 Kd7 Nb1 Ke8 Ke2 Kd7 Kd3 Kc7 Kc4 h5 f4 b5+ Kc5 b2 f6 h3 f7 h2 c3 d3 a3 h4 f5 h3 f6 b3 Qf1 b4 Qe2 e5+ Kc4 e4 Qh5 e3 Ne2 Bg4 Ra2 Kb7 Ng3 e2 Rf1 e1Q Rf5 h1R Qg6 h2 Ne2 Qd6 Qg7 Nh6 Ng3 Qf2 Qg5 Re1 a4 Re2 Na3 b1R Nb5 b2 Nc7 Rae8 Na8 b3 Qg8 Bg7 f8N Ra1 f7 b1R Ne6 b2 f8B Be5 Ng5 Qa3 Bg7 Bc7 d6 R8e4+ Kd5 Rh7 Be5 Qac5+ Ke6 R4e3 Kf6 Re7 Bf4 R7e4 Kg7 Rc4 Nf7 Ree4 Re5 Nf5+ Kh8 R4e3 Nh6 Ree4 Qd8 R2e3 Nf1 Ng3 Kg8 Nh1 Ng3 Re2 Ra3 Ra2 Rd5 Rba1 Rf5 b1R Bg5 Rbb4 Rb3 Ra3 Be3 Rb1 Bb2 Rbe1 Bc1 Qf1 Bg1 Qff2 Nb6 Rcd4 Rb2 Rbc4 Rb5 R2e3 Ra5 R1e2 Ra6 Re7 Na8 Rh7 Rc6 Rde4 Nf7 Rh4 Nh6
1q5N/1qP2Q2/2kq2P1/B2q1Rr1/1n1q1P2/2PN1r1p/1K2p1q1/1BnBnR2 b - - 0 1 illegal: No proof kernel
2q2q2/4RbR1/3Rb2r/p1b2r2/2BbP1p1/k2P4/qBPP3N/b1KQ2Nq b - - 0 1 illegal: No proof kernel
6r1/1QKPbp2/2Nn2n1/rb2p1pP/1nr2BbR/1PP2R2/2kB4/2q2N1N b - - 0 1 legal: proof: g4 c5 Na3 h5 gxh5 b5 Bh3 b4 Nb1 b3 axb3 c4 Bf1 c3 f4 cxb2 e4 e6 Bh3 e5 Be6 exf4 e5 Rh7 Bd5 Rh8 e6 Ke7 Bc4 Kd6 e7 Kc6 Be6 dxe6 Nf3 Kd6 Ng1 Kd7 Kf2 Kd6 Kf3 Kc5 Ke4 Kb4 Ke5 g5 e8N a5 h4 a4 d4 f3 h6 f2 h7 f1N h5 a3 d5 a2 d6 Be7 Nc7 Nd2 Nh3 Ne4 Bf4 Ra5+ Qd5 Na6 Nd2 Kc3 Nf2 b1B Nf1 Nb4 Na6 Qc7 Nb8 Bd7 Rh2 Bb5 Nh1 Qc4 d7 Nd6 Rh4 Kb2 Nfg3 Qf1 c3 Bf5 Qb7 Qc1 Bd2 Kc2 Nc6 Bg4 Rb1 a1R Nf1 R1a4 Ra1 Nh6 Rb1 Rg8 h8B Nhf5 Ra1 Qa3 Re1 Qc1 Re3 Nh6 Rf3 Nhf5 Rh2 Nh4 Bg7 Ng2 Rh4 Nf4 Bf6 Bf8 Bd8 Be7 Bc7 Ng6+ Kd4 Ne8 Bcf4 Nd6 Kc5 e5 Kb6 Na6 Qb8 Rc4 Qb7 Nb4 Kc7
1N4Bb/pPR5/1p1p3N/4B2K/qrR1r1n1/5R1b/P1q1kPqP/b1n4Q b - - 0 1 legal: proof: c4 f5 e4 g5 exf5 h5 d4 c5 b4 cxd4 g4 hxg4 c5 Rh3 c6 Rb3 Be3 Qc7 Bc1 b6 b5 Qb7 cxb7 Rxb5 Qd3 Rb3 Qd1 Rb2 f6 Kf7 Bh3 Ke6 f7 Kf5 Bd2 Ke4 Ke2 e5 Qc2+ d3+ Kd1 d6 Qc3 g3 Be6 g4 Qa5 g2 Bh6 g3 Ke1 d2+ Ke2 Bg7 f8R Rb4 Re8 Nd7 Bh3 Nc5 Be6 Nb3 Qa3 Bh8 Bf4 Nh6 Nh3 g1Q Bg8 g2 Qc1 Ng4 Na3 Kd4 Kf3 Kd3 Qd1 Nc1 Nc2 e4+ Kg3 e3 Kh4 e2 Be5 e1B Ng5 Bf5 Rf8 Re8 Kh5 Qf1 Nf7 g1Q Rb1 Qe2 Nh6 Qg2 Nd4 Be6 Nc6 Bc8 Qa4 d1Q Nb8 Qec2 Qc6 Ke2 Rf3 Bc3 Rb3 Bb2 Rbc3 Ba1 Rc4 Qa4 Qd5 Qdc2 Rc7 Be6 Rd1 Bd7 Rd4 Bc8 Rdc4 Re6 Bf6 Re4 Bb2 Ne3 Bc3 Bh3 Be5 Ng4 Qd3+ Ke1 Qf1+ Kd2 Qg1 Ke2 Qh1
2q1r2n/2pP4/4RQ2/PBR2p1p/3K1P1R/1b1PNbn1/nB1n4/q2n1kN1 b - - 0 1 legal: proof: g4 a5 b4 axb4 c4 b5 h4 f5 h5 d5 g5 Ra6 h6 Rf6 gxf6 dxc4 Qc2 gxh6 Qd1 h5 d3 h4 e3 Bh6 Ba3 Bf4 Bb2 Be5 Bc1 Bd4 exd4 Ba6 Bb2 Bb7 Bc1 Bc8 Kd2 Kf7 Ke3 Kg6 f4 e5 a4 h3 a5 b3 d5 e4 d6 b4 f7 h2 f8R b2 Qe1 Kh5 Na3 Kg4 Nb5 b1N Qd2 Kg3 Rf6 h5 Qa2 c3 Rh6 c2 Na3 b3 Nb5 b2 Rh7 Ne7 Na7 Re8 Bd2 c1N Rg7+ Ng6 Qc4 Nc6 Qb4 Be6 d7 Nc3 Nf3 b1N Nc8 Bb3 Qd4 N1a2 Nd6 Qc8 Re7 Nh8 Bc1 Nd2 Qf6 Nd4 Re6 Nde2 Bh3 Qa6 Ng1 Qc8 Bg4 Kg2 Bf3+ Kf1 Nc4 Ng3 Bb2+ Nd1+ Kd4 e3 Bc6 e2 Rc1 e1Q Rc3 Ne3 Rc2 Qa1 Bb5 Nd1 Ne3+ Ke1 Rc5 Kf2 Nf3 Ke2 Rf1 h1B Rg1 Bg2 Rh1 Kf2 Ng1 Bf3 Rh4 Ke1 Ng4+ Kf1 Ne3+
r2R4/q1PPn2N/4k3/1p1Nr2q/1r1p2BR/P1bpbQB1/r2P3K/5bR1 b - - 0 1 illegal: No possible last move, all moves rejected
1Nk2BBn/6P1/Q1rb1b2/1p1NP3/N2Pp3/1RrR1p2/3P3n/1rbK2bb b - - 0 1 illegal: No proof kernel
3n1r2/k1nKN1p1/5QbP/p1b4R/2Pb2rP/1P6/1NRpBr2/1n1bN1B1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 h4 e5 a4 exf4 g4 b5 axb5 Qg5 Qd3 Qh5 Qg6 hxg6 gxh5 g5 Kd2 Kd8 Kd3 Kc7 Kc4 Kb7 Kd5 f5 e4 d3 c3 f3 b3 d2 b6 d1B e5 f4 h6 f2 e6 f3 e7 g4 Kd6 g3 Bf4 g2 Be3 Nf6 Ra5 Nd5 Bc4 f1N Ra6 f2 Bd2 Nc7 Na3 Nc6 Rh2 Nd8 Be3 Nd2 Nf3 f1R Ra5 g1B Rh5 Nb1 Be2 Rf2 Nc4 a5 Nb2 Ra6 c4 Rg8 Ke5 d5 Kd6 d4 Ne1 Bf5 Rg2 Bfc2 Kd7 d3 e8Q Bc5 Qe7 Rgf8 Qf6 Kb8 b7 Ka7 b8N d2 Rg3 Bg6 Nc6+ Kb7 Ne7 Ka7 Bd4 Re6 Rf3 Re4 Rc3 Rg4 Rc1 Bh2 Be3 Be5 Rc3 Bed4 Rc2 Rff4 Bg1 Rf1 Rc1 Rf2 Rc2
qR1nK3/1Bpr1Np1/1QP5/3r4/4b1kp/1Nn1nP2/pR2P1P1/2B2nRn b - - 0 1 illegal: No possible last move, all moves rejected
2B4b/1Kp5/5PRp/k1N1nnP1/2PRPrpr/B4p2/3N2nB/1bnn2Q1 b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 Qg5 d4 exd4 h3 Qf5 g5 Qf3 Na3 f5 Nb1 Qg4 hxg4 fxg4 Bf4 g6 Be3 Ba6 Bc1 Bc8 f4 Bh6 f5 Kf8 f6 Ke8 Qd3 Bf8 Qf5 gxf5 Kd2 d5 Kd3 Kd7 b4 a5 c3 a4 b6 Kc6 b7 Kb5 e3 a3 Nf3 a2 Rh3 f4 Ne1 f3 Rh6 Ne7 Ba3 Ra4 Rg6 Nf5 Nd2 Bg7 Rd1 Nc6 b8B a1N Ba7 Nb3 Be2 Ka6 b5+ Ka5 b6 Rc4 b7 Nc1+ Kc2 Rb4 b8Q Ne5 Nd3 Rc4 Nc5 d3+ Kb2 Rf4 e4 d4 Qb3 Be6 Qc2 Ba2 Qb1 Rd8 Qa1 Bb1 Bf1 Bh8 Be2 Na2 Kb3 h6 Nf1 d2 Ba6 d3 c4 Rd6 Bc8 Ra6 Qd4 Nc1+ Kc3 Rb6 Qe3 Rb2 Qg1 Ne7 Kd4 Nf5+ Kd5 Rc2 Re1 d1N Re3 d2 Rd3 Ra2 Rd4 Nde3+ Ke6 d1N Nd2 Ned3 Kd7 Ng2 Kc6 Ne5+ Kb7 Rc2 Nd3 Ra2 B7c5 Ra1 Bd6 Ra2 Nc5 Rc2 Nf1 Rf2 Nd2 Rf1 Qh2 Rh1 Qg1 Rh4 Bd7 Nc6 Be8 Ng3 Bd7 Rf5 Bf4 Ne5 Be6 Ned3 Be3 Ne5 Bf2 Rf4 Bc8 Nf5 Bg3 Rh5 Bh2 Rh3 Qe3 Rh4 Qg1
3nr2N/RP1npPbK/1NB2p2/5PBn/1b2P3/1kR2p2/n2rQ1pB/5r2 b - - 0 1 illegal: No proof kernel
q2n1n2/4K1pr/RBP5/p1p1n3/NP2B2k/1pNn1PnB/2P1q2R/1Qb5 b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 h5 a3 hxg4 b5 c5 Bd2 b6 Bg5 Bb7 Bc1 Bc6 bxc6 Rh7 Bh3 Rh4 Bf1 Rh8 e4 f5 e5 a5 Nh3 b5 Qd2 b4 Qe2 b3 Qe4 fxe4 Ng1 Ra6 Bd3 Rb6 Bf1 Rb4 axb4 Qc7 Ba6 Qc8 Bf1 Qd8 Ke2 Kf7 h4 Kg6 f3 Kh5 e6 d5 e7 d3+ Ke3 d4+ Kf4 g3 Kf5 g2 Ke6 e3 Bd2 e2 Rh3 e1N Ra3 Nd7 Nc3 Rh7 Ra1 Qa8 Rh2 Nh6 e8B+ Nf7 Nge2 g1N Bg5 d2 Rd1 d3 Na4 Be7 Nec3 Ne2 Bh3 Ng3 Bf4 Bf6 Bc7 Bg5 Bb6 Bh6 Ke7 Nf8 Bed7 Nd8 Bdf5 Be3 Be4 Bh6 Rb1 d1Q Rc1 Qe2 Rd1 Bc1 Rd2 Kh6 h5 Kg5 h6 Kh4 Rd1 Rh8 h7 d2 Nd5 Nd3 Ndc3 Ne5 Re1 d1N Reh1 Rg8 h8Q+ Kg5 Qh7 Nb2 Rd1 Rh8 Rd7 Nbd3 Ra7 Qd1 Ra6 Qe2 Qg6+ Kh4 Qe6 Rh7 Qd5 Nb2 Qd1 Nbd3 Qh1 Bb2 Qa1 Bc1 Qb1
4k3/1B3qQ1/bP1K3p/NP1P2R1/5N1b/B1qp1ppq/3P1n2/1q1br1RB b - - 0 1 illegal: No proof kernel
2r3R1/1P1PBkPp/N1n4p/2n1q2B/P3pNKp/2Rr3r/2q5/1N1Qnn2 b - - 0 1 illegal: No proof kernel
R2BN3/1q1N2q1/R2r3P/K2nP2N/Bnb1rrP1/b3q2q/1P5b/1nQqk3 b - - 0 1 illegal: No proof kernel
K1R1B2b/n3r1N1/R4r2/2nNBq1Q/Pr1k1Pnn/1P2n3/2Pb3n/q4bN1 b - - 0 1 illegal: No proof kernel
1R1qqrq1/b1B3qb/2k1rQ2/3N2nP/P1n2B2/4P1Pq/q2bRK2/3B1n1N b - - 0 1 illegal: No proof kernel
2KR1R2/1rB1q1q1/PPn5/nB1N4/2N2nn1/1PbPR1Q1/q4n2/1rnbr2k b - - 0 1 illegal: No proof kernel
BB4Qk/1PR1n1q1/2r2P2/1R2b1r1/3BNnn1/N1qPnq2/3qP1q1/1K1b1n2 b - - 0 1 illegal: No proof kernel
1R3N1r/5qB1/2q1Rnn1/Q1P1b1k1/B1r2rPP/2P1n1rb/1nbK4/1B2r2N b - - 0 1 illegal: No possible last move
1QnR1r2/2nBnqRK/r1n2N2/2P1P3/2b5/b1PR2N1/q1r2P1n/1r1qB2k b - - 0 1 illegal: No proof kernel
6n1/knKn4/q3PBqn/2b2r2/R1NQPr2/Pr1N3P/4qRn1/1B1B2rb b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 f5 Kg3 d5 Kf4 Kd7 c4 Kc6 e6 Kb6 Ke5 g5 c5+ Ka7 e3 b5 h3 b3 a3 b4 c6 d3 c7 d4 Qd2 b2 Rh2 f4 Qd1 d2 Ra2 g3 Qg4 d1Q Ne2 d3 Qf5 d2 Qf7 f3 Nbc3 b1R Na4 g2 Ra1 g1Q Qg7 b3 Nc5 b2 Nf4 g4 Nb7 g3 Qf7 f2 Ra2 g2 Qh5 Qd3 Qe2 Bc5 Qf3 Qa6 Nd3 Qe2 Qf6 d1N Na5 Nd7+ Kd5 Rh5+ Ne5 Rf5 Bd2 Rb8 Bc1 Rb3 Nc4 Ra1 Bd2 b1N Bc3 Nd2 Rc2 Ne4 Qd8 Rf4 Nd3 Nd6 Bf6 Nb7 Rd2 Rab1 Rb2 Rb5 Rb4 Rb3 Ra4 Qe1 Be2 f1N Bg7 Ng3 Bf6 Nf5 Bg4 Nfh6 Bh5 Nb6+ Kc6 Qe2 Qd4 Nd7+ Kd5 Bb6+ Kc6 Rbf5 Bf3 Qgf2 Bh5 g1R Bg6 Qh4 Rf2 Qg3 Bh5 Qg6 e4 Ne3 Bg4 Ng2 Bf3 Nd8+ Kd6 Bb7 c8B Bc5+ Kc7 Bc6 Bb7 Bb5 Bd5 Nb7 Ne3 Rb2 Ba2 Rb3 Ne1 Bd3 Bb1 Bc2 Nd3 Bd1 Nd5 Qd2 Bg4 Bf3 Ne3 Qe2 Nc4 Ne1 Ra5 Bh1 Ra4 Ng2 Bh5 Qe1 Bd1 Qe3 Na5 Qe2 Nc4
3qn2K/Q1kb2N1/2P3P1/4bn2/2BPP3/2qRrnr1/1Bn1q3/bRNbNb2 b - - 0 1 illegal: No proof kernel
3kR2K/nPN1nr2/1bqnP1r1/R4Q1P/1n2N1R1/b2q1b1r/4P1r1/3nBB2 b - - 0 1 illegal: No possible last move, all moves rejected
N2qbRq1/5P2/4rn2/3Q1B1b/rb2nPr1/1kP1K1NP/n1q5/n2rBB1R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 a4 d5 f4 g5 f6 Ke6 a5 b5 f7 b3 h3 g3 c3 d3+ Kd2 b2 a6 g2 a7 g4 Qf3 b4 Ra6+ Nc6 Ke3 d4+ Kd2 g3 Rb6 b3 Rb4 Nf6 Qe3+ Kd5 Rb8 Kc4 Qe2 e5 Nf3 g1R Nh2 e4 Qg2 e3+ Ke1 e2 Kd2 e1N Nf3 Rh6 Rb7 Bd7 Rh2 Be8 Rb6 Nb4 Ra6 Na2 Qf2 g2 Qg3 Nc2 Nh4 Bb4 Qg4 Na1 Ra4 Rg6 Qh5 Rg4 Be2 Re1 Rh1 g1Q Bf1 Re6 Kd1 Qg2 Bd2 Qg1 Be1 Qg3 Bg2 d2 Be4 Qg1 Ke2 d1R Nf5 d3+ Kf3 d2 Ng3 Qc5 Bg6 Qg5 Bf5 Qg8 Ra3 Rc1 Kf2 d1B Ra5 Be2 Ra6 Rd1 Nd2+ Kd5 Ra4 b1Q Nc4 b2 Nb6+ Kc5 Ra6 Qc2 Ra3 b1N Rb3 Rc8 a8B Nd2 Bg2 Nde4+ Ke3 Ra8 Bf1 Ra4 Na8 Kc4 Rb2 Qb3 Rd2 Qc2 Rd7 Kb3 Re7 B8b5 Re8 Bd7 Rf8 Be8 Nb6 Rg6 Qg5 Bh5 Na8 Rg7 Qg4 Rg5 Qf3 Rg4 Qg2 Qg5 Qd2 Qg8 Qd5+
B1rq2q1/4R2n/4PrkN/2B4r/P2qrQqb/4P1Pr/Rr4N1/nb4KN b - - 0 1 legal: proof: f4 a5 h4 g5 b4 axb4 d4 gxh4 d5 e5 fxe5 c6 Bd2 cxd5 Bc1 d4 Kf2 b5 c4 f5 a4 Kf7 e6+ Kg6 g3 d5 Bg2 h5 Bb2 d3 Nd2 d4 Nh3 b3 Kf1 f4 Ba3 f3 Qe1 f2 Rg1 b2 Nf3 b1Q Bc5 b4 Nhg5 h3 Ra3 d2 Nh2 d1Q Ne4 h4 Rb3 d3 Nd2 Nc6 Bb6 Na5 Bh1 Nf6 Be3 Rh5 Nhf3 h2 Nd4 h3 Bb7 h1R N2f3 d2 Bd5 h2 Kg2 f1R Rd3 b3 Nf5 b2 Ra3 Be7 Ra2 Nh7 Bc5 Nb3 Nh6 Bh4 Qf2 Na1 Ne1 Qbc1 Qf4 b1R Bb7 Rb2 Bc6 Rab8 Ba8 Ba6 e3 Rf3 Rf1 Rc8 Rf2 Qc3 Rf1 Qdb3 Rf2 d1Q Rc2 Qb8 Rd2 Nc2 Rd7 Qcd4 Rc7 Rhf1 Re7 R1f2+ Kh1 Qe2 Ng2 Na1 Ba7 Rb4 c5 Bd3 c6 Bb1 c7 Qec4 Bc5 Rfb2 Qd6 Rf6 Qe5 Qg8 Qf4 Re8 c8N Qbd6 Ng4 Qd8 Nd6 Qe2 Nf2 Qg4 Nf5 Rc4 Ne1 Ref8 Kg2 h1R Nh6 Rh3 Kg1 Re8 Ng2 Ref8 Bb6 Rc8 Nh1 R8f7 Qc7 Rf4 Qb8 Re4 Qf4 Rf6 Bc5
n1rr4/4r1n1/1q1r3b/1RRNkNB1/2Pp3Q/K1P1PB2/3qbPbn/2r1B3 b - - 0 1 illegal: No proof kernel
1rQK4/1qB2Bb1/4pN2/2rBPb2/nb1N1n1P/P2P2q1/4rR1k/b1nb1R2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g5 Qc2 d6 Qf5 gxf4 g5 d5 Qg4 hxg4 cxd5 Ra6 Kd1 Ra5 Ke1 Ra8 Kf2 Kd7 e4 Kd6 h4 Ke5 d6 c5 a3 b5 d3 f5 d7 g3+ Kf3 g2 g6 b3 g7 c4 Nd2 b2 Rh3 b1N Nb3 c3 Be3 b4 Rg3 c2 Bc5 c1B Bf2 Qc7 d8Q Na6 Nc5 b3 Nb7 b2 Rg6 Rb8 Be2 Bd2 Be1 Nb4 Rg5 Rh5 Nc5 Na2 Bg3 Nc1 Qd7 Bb4 Qd8 Nf6 g8B Nd5 Rg6 Bg7 Bh2 Nbc3 Na4 b1Q Nb2 Na4 Nh3 g1B Rc6 Bd4 Ra2 Be6 Nd1 Ba1 Qe8 Qb7 Ne3 Qc2 Rd6 Qcc7 Ng1 Rg5 Qb5 Rg2 Bd1 Re2 Qa6 Bd7 Rf6 e6 Rb2 Be8 Bb3 Bg6 Bg3 Bh7 Bf2 Bg6 Bf7 Bh5+ Kg2 f3+ Kh3 f4 Bg3 f2 Rc2 Bg6 Kg4 f1R Kg5 Bf5 Qc4 Qd6 Qc8 Rd1 Ra2 Rdd2 Rb2 Rc2 Rb1 Rc5 Ng4+ Kd4 Rb2 f3 Bf4 f2 Nf3+ Kc3 Bh2 f1B Nd4 Nf4 Bd5 Qe5 Rb1 Kd2 Rb2+ Ke1 Ra2 Re3 Rf2 Be2 Bg3 Bd1 Bh2 Bh7+ Rf5 Qec7 Nf6 Re2 Bg3 Nh5 R5f3 Bf5 Bd6 Nf4 e5 Qd8 Bc7 Qg8 Ne8 Bh6+ Kf6 Qg3 Ke7 Bg7 Re3 Na2 Nf6 Nc1 Rh2 Kf1 Rf3+ Kg1 Rhf2 Kh1 Kd8 Kg1 Rf1+ Kh2 R3f2+
2r1N1b1/q5QB/1Pn3PB/r1NP2q1/P2b3R/4p1nK/n3k1BR/b1bq3b b - - 0 1 illegal: No proof kernel
2n2k2/R2qNn1P/2Pn1BK1/R1n1N3/2b2r1b/2Pnq3/P1b1B1pq/1r4QN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 f5 c5 dxc5 e6 Qd5 exf5 Qd1 f4 Kd2 b5 Kd3 d5 h4 f5 e4 g5 c6 f3 h5 d4 e5 f4 Ke4 b3 h6 b4 h7 d3 c3 f2 e6 g3 Kf5 b2 Bg2 f1Q Bh3 d2 Ne2 f3 Qe1 d1N Bg2 b3 Bd2 f2 Rg1 g4 Kg6 Ba6 e7 Nd7 Be4 Nh6 Bf4 Rb8 Nd4 Qd3 Bd6 f1N Nb5 Nfe3 Nd2 b1N Rg2 b2 Rf2 Nef5 Rf4 Qe3 Bg2 Nc5 Rc4 Nf2 Ne4 Nfd3 Rd4 Nd2 Na7 b1B Kf6 Bc2 Nf2 Nc4 Rb1 Qd7 Be5 Nfd6 Nc8 Nb6 Ra4 Bc4 Bf1 Rg8 Ra5 Nhf7 Qc1 Rg5 Be2 Rf5+ Kg6 Rf6+ Kh5 Rf4 Nh1 Bh6 Qd1 Bg5 Bf6 Bh4 Qc1 g2 Ra7 g1Q Rb5 g3 Rba5 Qh2 Qg1 Nh8 Kh6 g2 Kh5 Nde4 Kh6 Kf7 e8N Kf8 Ne7 Nc8 Nd6 Rb1 Nf7 Ned6 Ne5 Nhf7+ Kg6
7B/rN1qb2p/3rr2P/bQ2n1kr/RP1R1q2/1KP1rnnP/B2qR3/1N6 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 Kd2 exf4 Ke1 b5 h3 bxa4 h4 Bb7 Rh2 Bf3 Rh3 Bg4 Rh1 Bh3 gxh3 Ba3 Nc3 Bd6 Nb1 Bf8 Kd2 Ke7 e4 Kf6 h5 g5 h6 d5 b3 a5 Ne2 d3 Kc3 d4+ Kc4 d2 Rh2 d3 Ra3 f3 Kc3 f2 Nf4 g4 e5+ Kg5 e6 f5 e7 g3 e8R g2 Ra1 g1N Nh5 a3 Qf3 a2 Re3 d1Q Qd5 d2 Re7 a4 Bb2 a3 Qc6 f4 Re2 f3 Bc1 Qd7 Kc4 Ne7 Nc3 Ra5 Qb7 Nf5 Qc8 Be7 Re5 Nc6 Na4 Re8 Be2 f1R Nc5 f2 Kc3 Nf3 Nf4 Re1 Qb8 f1Q Rd5 Nce5 Qb5 Ng3 Bc4 Re3+ Rd3 Qde2 Nd5 d1R Bb2 Qff2 Kb4 Qd2+ Nc3 Qf1 Rd4 Qff2 Rc1 a1R Rg2 Qf1 Re2 a2 Bg8 Ra7 Bf7 Rb1 Be6 a1B Bf7 Bd8 Nb7 Ba5+ Ka3 Re6 b4 Rd6 Ba2 Re1 Rd1 Rc1 Rg2 Qc4 Re2 Qcf7 Ka4 Qf6 Nb1 Qf4 Ba3 Bc3 Kb3 Bb2+ Rd3 Bd4 Bb2 Bdb6 Bd4 Bd8 c3 Be7 Na3 Rc2 Ra1 Rcc1 Nb1 Rcd1 Rh2 Re4 Rg2 R1e3 Re2 Re1 Bc5 Rc4 Bd4 Rc5 Na3 Ng6 Rg2 Kh4 Nb1 Rh5 Bh8 Ree5 Rd4 R1e3 Re2 Ree6 Ka4 Rf6 Bc4 Rfe6 Ra3 Nge5 Ba2 Kg5 Kb3 Qc8 Ra4 Qe8 Qc4 Qd7 Qb5
N1Q1b1B1/4P1qr/2b1n2N/Rn3n2/2N1b1P1/B2p1Prb/1q2R1Pr/2k1b1K1 b - - 0 1 illegal: No proof kernel
1q1N1rR1/rP2k3/1Pq5/2Qn1br1/PB3nN1/bnr2PR1/B3p3/2br1BK1 b - - 0 1 illegal: No possible last move, all moves rejected
b2rR2n/8/4QnPP/q3B3/1Rrnr1Bn/1kP2bK1/Np1P2N1/2bq1q1R b - - 0 1 illegal: No proof kernel
Br1b2nK/R2P1b1P/r7/4nkPr/qNn1NQqB/5q2/3NrbPp/R7 b - - 0 1 illegal: No proof kernel
3b2Q1/bq3b1r/b1B1P1rk/qpN5/2b1NK1R/B4R1P/1P1n3P/1Bnb1q2 b - - 0 1 legal: proof: d4 e5 f4 exf4 a4 h5 a5 c5 a6 cxd4 Nf3 h4 Ng1 h3 gxh3 Qa5+ Bd2 Qxa6 Bc1 Qa2 Kd2 g5 c4 b5 e4 d5 c5 f5 e5 Kf7 e6+ Kg6 c6 a5 c7 d3 Qf3 d4 Qg2 a4 Qg4 a3 Qf3 g4 Qg2 g3 Nc3 f3 Be2 f4 Na4 f2 Rb1 f1Q Ra1 f3 Nc5 f2 Ne4 Qd5 Bf3 a2 Nd6 Qb7 Ne8 Nd7 Be2 Ngf6 Qf3 g2 Qe3 Ne5 Bg4 Be7 Nd6 Bd8 Rb1 a1Q Ne2 g1B Ng3 Rh7 Nde4 Qaa6 Qf3 Kh6 Bf5 Qab6 Qg4 Qa5+ Nc3 Ra7 Ne4 Rg7 Nc5 Rg6 Nd7 Qe4 Qg2 Ba6 c8B Qd5 Nc5 Rh7 Qg4 Qb7 Ra1 Qfg2 Ra3 f1B+ Qe2 Bf2 Rg1 Qh1 Qg4 Ne4+ Kd1+ d2 Bd7 Bc4 Bc6 Nd3 Ke2 Be3 Rg2 Bf2 Kf3 Qf1 Rg1 Nb4 Qg3 d3 Kf4 d1B Be3 Nd2 N3e4 Na2 Rg2 Bh5 Qg5+ Kg7 Rg4 Nc1 Rc3 Nb1 Rb3 d2 Rd3 d1B Bd4+ Bf6 Rf3 Nd2 Bc3 B2d4 Bb4 Bd8 Ba3 Bf2 Nd3 Ba7 Ndc5 Bdb6 Qd8 Kh6 Qg8 Bd8 Nf6 Rg5 Bb1 Bf7 Nfe4 Rg6 Rh4+
R2bB2q/Q1n2n2/n2p1r2/N2Rq2B/3PNBr1/PP6/k1bKP1nq/4n2n b - - 0 1 legal: proof: b4 a5 Bb2 axb4 Bd4 b5 Bc3 b3 Bb2 b4 Bc1 b2 h4 g5 f4 gxh4 f5 b3 cxb3 e6 Rh2 exf5 Rh1 f4 d4 h5 g4 c5 g5 f5 g6 c4 g7 h3 Be3 f3 Rh2 c3 Qc1 h4 Bg2 f2+ Kd1 f1Q+ Kc2 f4 Be4 f3 Rf2 h2 Bf4 h1Q Rg2 h3 Rf2 d6 Be3 Kd7 Bd2 h2 Rg2 f2 Be1 Be7 Kd3 c2 Nh3 Rh6 Ng1 Rf6 Na3 b1N Rg5 Nc3 Qb1 c1N+ Kd2 Nh6 g8B Nf7 Ke3 Nb5 Nc2 Nd3 Na3 Nc7 Bd2 Ne1 Qc2 Nba6 Bgh7 Qh8 Rf5 Bd8 Bd3 Ra7 Bc4 Kc6 Rd5 Bf5 Nf3 Qhg1 Bg6 h1N Qc3 Qgh2 Bh5 Bc2 Ng5 Qe5+ Ne4 Qg1 Qa5 Qgh2 Bc1 Rb7 Kd2 f1N+ Kc3 Rb5 Bf4 Ne3 Kd2 N3g2 Qa4 Kb6 Bd3 Rc5 Bb5 Rc3 Bc6 Rg3 Be8 Rg4 Qd7 Nb5 Qb7+ Ka5 Qa7 Kb4 Nc4 Nbc7 Na5 Ka3 Rc1 Kb2 a3 Bd3 Rcc5 Ka2 Rb5 Bb1 Rb8 Bc2 Ra8
6N1/2Nr3n/2P3P1/q1b2n2/1PR3bP/1pKR1B2/rBQrkrn1/2r1N1bb b - - 0 1 illegal: No proof kernel
1r6/1n2Bb1b/PQK4N/b1PRPN2/B1Rq1n2/1RPr2n1/4b1bp/3kq1b1 b - - 0 1 illegal: No proof kernel
3bb3/1n1qb2P/1PB2PrQ/k2PK3/1R1B2bN/2r2N1n/3p1nrr/rR5N b - - 0 1 illegal: No proof kernel
3q2R1/qN3b1Q/bN1rBb2/nr2k3/5N1P/bP2PpR1/1Pqqn2K/2B2q2 b - - 0 1 legal: proof: f4 b5 g4 c5 d4 cxd4 g5 e5 g6 exf4 Nh3 b4 Ng1 b3 axb3 hxg6 Ra6 g5 Ra1 g4 Kf2 Ke7 Kg2 Kf6 h4 g5 c4 a5 c5 d5 c6 f3+ Kh2 a4 c7 f2 Kg2 d3 Rh3 d2 Kh2 g3+ Kh1 g2+ Kh2 a3 Rd3 d4 Rh3 a2 Qe1 d1B Nc3 g4 Nb1 d3 Bh6 d2 Rd3 Ba6 c8N g3+ Kh3 Ne7 Nc3 Ke5 Rd6 f5 Ne4 f4 Rb6 Nf5 Nc5 Nd4 Na7 Nbc6 Rb4 Rb8 Rb7 Na5 Rd7 Rb5 Ne4 Ba3 Rc1 a1Q Nc8 Qb1 Rh7 Qc2 Rg7 f3 Bg5 Rh6 Nb6 Rd6 Nc5 Qe8 Kg4 Qd8 Nh3 g1B Rg8 g2 Nf4 Bh2 Kh3 g1Q Bg2 f1Q Qg3 Qe3 Bh6 Qeg1 Qg6 Bg3 Nb7 Bf2 Ne6 Be3 Ra1 Bg5 Qh7 Bf6 Nf4 Qe3 Kh2 Qef2 e3 Be2 Bg7 d1Q Rb1 Q2e1 Bh3 Qed2 Be6 Qcc7 Bh8 Q1c2 Re1 Bd3+ Re2 Bf5 Reg2 Ne2 R2g3 Bg6 Bg7 Bf7 Bf8 Rd4 Bb4 Qcb8 Bc3 Qa7 Bb4 Rd6 Bc3+ Qd4 Bd2 Qdc3 Bc1 Qb4 Bf5 Qbd2 Be6
nN1qqB1R/4r1B1/7b/1Rr1qP1r/pn2Nqr1/1PP4B/bKb2P2/4Q1k1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 bxa4 g5 f5 exf5 h6 Ra3 hxg5 Ra1 g4 Kd2 Kf7 h4 Kf6 h5 Ke5 h6 Kf4 h7 d5 Rh3 a5 Bc4 g5 Be2 e5 Bd3 e4 Be2 g3 Bd3 e3+ Ke1 g2 Nf3 g1R+ Bf1 a3 Ke2 g4 Kd3 a2 Bg2 a4 Na3 g3 Nc4 Re1 Rh1 Be6 Rb1 a1Q Nb6 Na6 Qe2 Rc8 Nh2 Ne7 Rf1 Nc7 Ng4 Na8 Bd2 Rc5 Bh3 g2 Rh1 g1R Rh2 Bh6 Nc4 Nc6 Nf6 Rg4 Qf1 Kf3 Qg1 e2 Bf4 Nb4+ Kd2 d3 Kc3 d2 Be3 d1Q Ne8 Qc1 Nf6 Bf7 Bd4 Qf4 Nd7 Bg8 Nb8 Be6 Be3 d4+ Kd2 d3 Nd6 Bc4 Kc3 d2 Ne4 d1B Bc1 Rf1 Rh1 e1Q+ Bd2 Re8 h8B Re7 Bg7 Qe2 Bf8 Re1 Be3 Rh7 Bd4 Rh8 Nd6 Qee8 Bdg7 Re7 Ne4 Bg5 Bf6 Rh5 B6g7 Bh6 Qe1 Bde2 Rd1 Bf1 Rd4 Bfd3 Rh2 Ba2+ Rc4 Qac1 b3 Qce3 Kb2 Qed4+ c3 Qde5 Rd4 Bc2 Rd5 Rc8 Rb5 Rc6 Qc1 Rc5 Rg2 Ke2 Qe3+ Kf1 Rh2+ Kg1 Qe2 Qd3 Qe1+ Qf1 Qb1 Rhg5 Qa1 Qd1 Bf1 Qdd8 Bh8 Bg7 Qe1 Rc6 Rh7 Bh6 Bhg7 Rc5 Rh8 Rh5 Bh3+
1bQN1R1q/1r1B1b2/K2bPPP1/n7/q1R1rq2/1nk5/R1P2pN1/r1Bb1q2 b - - 0 1 illegal: No possible last move, all moves rejected
b2q2b1/2qQ1PKb/p1r5/N4Pbr/PBBnr3/R1N1R1rn/6P1/N4qk1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 b5 d3 bxc4 Be3 cxd3 Bh6 Nc6 Bc1 Nb8 Kd2 Kf7 Kc3 Kf6 Kd4 c5+ Ke4 e5 a4 d5+ Ke3 Kg5 b4 h5 b5 d4+ Ke4+ d2 f6 h3 f4+ Kh4 b6 Kg3 b7 Kf2 Ra3 h2 Bc4 h4 Ra2 a6 Qg4 h3 Qh5 d3 Qg4 Nc6 b8N Bh6 Qd1 Bb7 Kf5 e4 Kg6 e3 Bf7 c4 Ne2 c3 Bb2 c2 Ba3 c1R Bd6 Nd4 Ng1 e2 Be8 e1R Qg4 Rc6 Qe6 Bg5 Be7 Rh5 Qd7 Nh6 Bf7 Ng4 Qc8 Re4 Ne2 d1B Be6 d2 Kf7 Bb3 Bf8 d1B Nd2 Bdc2 Rc1 h1Q Bb4 h2 Ra3 Qf1 Kg7 h1Q Nc3 Kg1 Qd7 Nf2 Re1 Nh3 Bc4 Qh2 Re3 Ba2 Nb3 Ra7 Nb1 Ba8 Nc3 Rb7 Na1 Rb5 Be2 Bg8 f7 Rbe5 Bc4 Ree6 Rf3 Re3 Rg3 Bch7 f5 R6e4 Rf3 Qhc7 Rg3 Rce6 Nc6 Rd3 Na5 Rc6 Rg4 Rg3 Rf4 Qe2 Rf3 Qf1 Re3
5Rrn/NPKn4/q1b1r3/6P1/p3NB1R/1n1n1Pb1/BrB1q1qP/k1Q4q b - - 0 1 illegal: No proof kernel
1r2B3/P2bRp1Q/1RN2qr1/q5qb/2NPrq1R/2n5/n1K1P1kP/B1br4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 cxd5 e6 Na3 exf5 Nb1 f4 a4 Kd7 d4 b5 Kd2 c5 d6 Ke6 a5 Kf5 a6 g5 a7 c4 d7 f3 Bb2 f2 Ra5 g3 Ra4 Kg4 Bc1 b3 Na3 b4 Nb1 b2 Ra5 b3 Kc3 g2 Qd3 Nc6 Rf5 Nf6 Rf3 Ba3 Kd2 c3+ Kd1 c2+ Kd2 Rb8 Qh7 Re8 Rd3 Nd5 Qh6 Qa5+ Rc3 Re4 d8R Bd7 Rc8 Ncb4 Qg6 Na2 Nh3 g1Q Bg2 f1Q Rc5 Qf6 Qg8 Qgf2 Kd3 Q2f4 Nd2 b1B Ng1 b2 Rc7 Kh4 R3c6 g4 Rb6 g3 Nc4 Ndc3 Qh7+ Kg4 Nf3 Q4g5 Bf1 g2 Rcb7 g1R Bg2 Rd1+ Bd2 Rg8 Rf1 Rg6 Bh1 Bc6 Re7 Bd7 Nh4 Kh3 Rf4 Re5 Bb7 Re4 Nf3+ Kg2 Rh4 Qgf4 Nfe5 Q4g5 Bc6 Qgf4 Nd6 c1Q+ Kc4 Bd3+ Kb3 Q4g5 Be1 Qcf4 Ndc4 Bb1 Ba4 Bd3 Nc6 b1R+ Nb2 Bb5 Bd2 Bg4 Kc2 Bh5 Nc4 Bc1 Be1 Ba6 Bd2 Bc8 Bb5 Bd7 Ba4 Nb5 Bc3 Rb4 Ba1 Nbc3 Ra6 Rb8 Rb6 Bf5 Nb4 Bfg4 Be8 Bd7 Nc6
1r1nb1B1/4qr1R/Qb1kr3/PrN5/Pp2nnR1/1N2n1Rr/K2PP2r/2B5 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 dxc4 Qb3 e5 Qd1 exf4 g4 Kd7 a4 b5 g5 f5 g6 h5 g7 c5 Qb3 c3 Kd1 b4 Kc2 c4 Bb2 f3 Na3 f4 Kb1 h3 Qc2 f2 Ra2 f3 Qh7 c2+ Ka1 c1R+ Qb1 h2 Bh3+ Kd6 Bf1 c3 Bg2 f1R Nc2 f2 Ba3 h4 Bf3 h3 Ne3 c2 Bc6 Ra6 Ng4 Nf6 g8R Ne4 Ne3 Qe7 Nf3 Bd7 Rgg1 Be8 Bb5 Nc6 Nd1 Nd8 Bd3 Bg7+ Bb2 Bd4 Ne3 Bb6 Bc4 Rh5 Ne1 Rb5 Be6 Ra8 Rg4 Rb8 Rhg1 h1R Bg8 h2 Nd3 Rfe1 Ba3 f1N Nc5 Red1 R1g3 Re1 Ng2 Ne3 Nf4 Ref1 Nfe6 Rf7 Nd4 Rcf1 Rh3 c1N Ndb3 Nd3 Bc1 R1f6 Ra3 Nf4 Ka2 Re6 Rhh4 Rg1 Rh7 h1R Qc2 Rg3 Qc4 Rgh3 Kb2 Rg6 Ka2 R1h2 Qe6+ Kc7 Qc8+ Kd6 Qa6 Re6 Nd4 Nc2 Rag3 Ne3 Ndb3
1B3n2/Qr2B1rP/1R1nPrp1/1qn5/3PNnBb/rbR2N2/7P/1nn2k1K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 exf4 a4 bxa4 Na3 d5 Nb1 dxc4 Kf2 Kd7 Kg2 Kc6 e4 Kb5 b4 c5 d4 f5 e5 a5 h6 g6 h7 a3 Qe2 a4 Qb2 a2 Be2 a3 Nh3 f3+ Kg1 f2+ Kg2 f1R Qd2 f4 Qb2 f3+ Kg3 f2 Kg2 Ne7 Bf3 c3 Be3 Kc4 b5 Kd3 b6 c4 b7 c2 Bc6 Ke2 Bd2 c1N Be8 c3 Qb4 c2 Bd7 Qb6 Bf5 Nd7 b8B Nd3 Qc5 c1N Bg5 Nf4+ Kg3 Ra7 Bc7 Qb5 Qb6 Rg8 Qf6 Rg7 Bb8 Rb7 Be4 Nf5+ Kg4 Nd6 Kg3 Be7 Bf5 Nf8 Qf7 Be6 Nd2 Bb3 Rb1 a1N e6 a2 Ne4 Ke1 Bg4 Bf6 Bh6 Bh4+ Kf3 Rg1 Rb2 f1N Bg5 Rg2 Ng1 Nd2+ Ke3 Nb1 Kf3 Kf1 Be7 Bc4 Rc2 Nab3 Rc3 a1R Bf5 Bf6 Bg4 Rf2+ Kg3 Nc5 Nf3+ Ke2 Rd1 Ra3 Rd2+ Kf1 Rb2 Qd7 Rb6 Qb5 Qe8 Bb3 Qd7 Qd3 Qa4 Qb5 Qa7 Nd5 Kh3 Bh4 Ne5 Rf6 Nf3 Ke2 Kg2 Nf4+ Kh1 Kf1 Qa4 Qd3 Qa8 Qb5 Qa7
1Bn5/1PPP1Qnb/6R1/2bb1nbr/BNn2kq1/3nP3/nrBp4/N2R1K2 b - - 0 1 illegal: No possible last move, all moves rejected
2qrn1r1/3N3q/1n3Q2/1n2PBPR/NR5p/2q1B2k/KPq1B2P/bn3q1n b - - 0 1 illegal: Other
1n3Q1K/2Pkr1NP/Nnq1bBB1/3rr1n1/5r2/3nPpBr/r4P2/r1R1R3 b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 c5 Bb2 cxb4 Bc1 h5 a3 hxg4 Qd3 b5 Qg6 b3 Qd3 b4 Qd1 b2 Be3 b3 Bc1 Bb4+ axb4 Qa5 Ra2 Qb6 Ra1 Qd8 Kd2 a5 Kd3 f5 h4 g5 c4 d5 b5 a4 h5 f4 c5 a3 b6 g3 b7 g4 c6 f3 h6 a2 e3 g2 c7 g3 Qe1 Kd7 Qc3 Qe8 Qc4 Ne7 Nd2 b1R Ba3 b2 Nh3 g1R Qc5 g2 Kc2 d3+ Kc3 d4+ Kc4 Nd5 Ng5 Nb6+ Kb4 Rd1 Nde4 b1R+ Bb2 d2 Ne6 d3 Kc3 Ra4 Ba3 Rbb4 Rc1 a1R Ng7 Qg6 Bb2 R4a2 Qf8 Rd4 Ba3 Qc6+ Bc5 Rd5 h7 Re5 Kd4 Re7 Rh3 Rh1 Bd6 g1N Bg3 Re5 Rh2 Nh3 Rg2 Rh2 Rg1 Ng5 Be2 Rh3 Re1 Rf5 Bf1 Rf4 Ke5 Rg8 Rc5 Rdb1 Rcc1 d1R Be2 d2 Bd3 Rb4 Bb1 Rf7 Bc2 Re7+ Kf5 Na6 b8B Rd4 Ba7 Nb8 Ne8 Rg6 Ng7 Rge6 Bb1 Na8 Bc5 Nb6 Bb4 Rc4 Bc3 Rb4 Bf6 Re5+ Kg6 Rd4 Rc4 Rdd5 Bc2 Rdc1 Bb1 d1N Rc3 Nb2 Nc5+ Kd6 Bd3 Be6 Na6 Kd7 Rc5 Rc4 Bf5 Rf4 Rcc1 Rh1 Be4 Rf1 Kh6 Nd3 Bg6 Rh1+ Nh5 Bf7 Kg7 Rh3 Kh8 Be6 Ng7
rb2b3/bpr4n/n1n2R1Q/5n1N/P1r1kBB1/1P5P/1r1nBNRP/3nK3 b - - 0 1 illegal: No proof kernel
R3nbnk/1PrB1rN1/1r6/Br1b1b1N/q1PQPp1N/1nR5/2P1Kp1r/8 b - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 f5 b5 f6 bxa4 d3 c4 dxc4 exf6 Nh3 f5 Ng1 f4 g4 a5 b4 f5 g5 Kf7 e3 Kg7 b5 h5 g6 d5 b6 d4 b7 h3 Bg2 d3 Qg4 h4 Kf2 a3 Nf3 a4 Bf1 a2 Nh2 a3 Bd2 f3 Bg2 f4 Qg5 Ra5 Qc5 Rb5 Nc3 Na6 Na4 Qe8 Raf1 a1N Bb4 a2 Ba5 d2 Rfg1 d1R Bc7 Nb3 Nb2 a1R Na4 Bf5 Ba5 Rh7 Re1 Kh8 Qd4+ Rg7 Nc5 Rab1 Ne6 Nc7 Kf1 f2 Bc6 Rd3 Nf3 h2 Ke2 h3 Nh4 Rb6 Rhf1 h1R Bd7 h2 Rg1 Qa8 Rg3 Ne8 Rd1 Rb2 Ra1 Qa6 Rf3 Qb5 Ra2 Qa4 Rh3 Rf1 Ra1 h1B Rg3 Bd5 e4 Rdd1 Rc3 Rh1 Ra2 Rh2 Ra3 Ngf6 Ra2 Rf7 g7+ Kh7 g8N Kh8 Ng7 Rb5 Nh6 Ng8 Ng4 Rg1 Nf6 Rg6 Nfh5 Rc6 Ra1 Rc7 Rb1 Nd2 Rg1 R2b4 Rg6 Nb3 Ra6 Rb6 Ra7 R4b5 Ra8
1N4B1/Rp2r1k1/r1R1Pb1p/r1P1n3/n1q2n2/RPP1r1Nb/r4QbB/3K4 b - - 0 1 legal: proof: h4 c5 f4 g5 d4 gxh4 dxc5 e5 b3 exf4 Nc3 a5 Qd4 a4 Nb1 a3 Qb2 axb2 a4 f5 e4 Kf7 g4 d5 c3 h6 g5 d4 g6+ Kg7 a5 d3 e5 f3 a6 f2+ Kd2 h3 a7 h2 Kd1 d2 Nf3 f4 Nd4 f3 Ra3 Rh7 Ra5 Qd5 Bb5 f1R+ Kc2 d1N Bg5 f2 Be2 Be7 Bf3 Bh3 e6 Nc6 Ra3 Re1 Be4 f1B Bf4 Nf6 Nd2 Bfg2 Nf1 b1R Ng3 Ne5 Nc6 Nh5 Nb8 Re3 Re1 Nb2 Rd1 Qc4 Rd6 h1R Rc6 Bf6 Bf5 Kg8 g7 Na4 Kd2 Rh2 Be4 Rb2+ Kd1 Ra2 Bg6 Rh8 Bf7+ Kh7 Bg8+ Kg6 Nf1 Rh7 Bg3 Rh1 Bh2 Nf4 Nd7 Rc8 a8R Rg1 Ra5 Ra8 Nb8 Ra6 Bf7+ Kg5 g8Q+ Rg7 Qc8 Rh1 Bg8 Kg6 Qd7 Re7 Qd2 Kg7 Qb2 Rb6 Ra7 Ra6 Kd2 Ra5 Ng3 Rd1+ Kc2 Rd6 Kc1 Bf1 Qf2 Bfg2 Rc7 Rb6 Rc6 Rba6 Kd1
4BNr1/PPP5/1qN1Kp1n/RrrR4/8/pb1RB3/3r1QPr/1nb1nk1b b - - 0 1 illegal: No proof kernel
3Qr1b1/1r3B1q/N3rr2/b2n1pbP/kpRP3B/3B4/1Pr1NqPK/2nR4 b - - 0 1 illegal: No proof kernel
1nB5/rQbN3n/7K/1P1PR1R1/p1bRP1q1/q1Nbr3/1k1Pb2p/Bb5n b - - 0 1 illegal: No possible last move
3Nrr2/qq3r2/RR4P1/k1BPrP1b/P2K2pn/4p3/QrN2n2/bB1B1n2 b - - 0 1 illegal: No possible last move
2q1qb1r/2q1NN1n/1p1B1k2/1Pp1P2K/1b4r1/n3Q2P/1RPq1R1B/2qnB3 b - - 0 1 illegal: No possible last move, all moves rejected
1Q2B2n/1PP1B3/1K1N3n/R1nrP2k/pp2b1R1/1n6/1PrbN1q1/3q1bBn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 d4 e5 d5 exf4 d6 b4 Qd5 Qg5 Qd2 Qb5 axb5 cxd6 Qd3 d5 Qd1 d4 Kf2 a5 c4 f5 h4 Kf7 e4 Kg6 c5 d5 e5 g3+ Kf3 a4 c6 g2 c7 d3 b6 d2 b7 d4 Ra2 d3 Ra3 Nd7 Nh3 g1N+ Kf2 f3 Ke3 f4+ Kd4 f2 Ra1 f3 Qe1 d1N Qe4+ Kh5 Bh6 g5 Qd5 d2 Qb3 g4 Bf4 g3 Na3 g2 Nc4 Nc5 Qc2 Nh6 Rc1 Bf5 Nd6 Be4 Qd3 Rd8 Bh2 Ne2+ Kc4 g1N Kb5 Nf4 Kb6 Nge2 Ng1 Nd4 Ne2 Ndb3 Rg1 Ng6 Rg4 Bg7 Bh3 f1B Bg1 f2 Qa6 Rhf8 Qa8 Nh8 Qb8 Rf3 Rc4 Rc3 Rd4 Bf6 Rd5 Rc2 Bg2 Bg5 Bf3 Nd3 Ra5 Ndc5 Bg2 Bg6 Bc6 Be4 Ne8 Rd5 Nd6 Bfg2 Bd7 f1Q Bc6 Nf2 Bd7 d1Q Bb5 N6f7 Be8 Kh6 h5 Bd2 Ka7 Nh1 Kb6 Kh7 h6 Bh3 Rf4 Kg6 h7 Kh5 Rg4 Qf3 Bd7 Nh6 Be8+ N8f7 h8B Bf1 Bf6 Qg2 Bc6 Nh8 Be7 Qh2 Bd7 Qg2 Be8+
6bq/R3bkn1/2P1N3/3p1qb1/rRP2n2/Br2N1K1/p1B2RPP/3r1bQq b - - 0 1 illegal: No proof kernel
b1q2r2/1qB3N1/P3r1rn/2p1qBRR/1N1Pn1PK/1Bp1n2P/Q7/3n2bk b - - 0 1 illegal: No proof kernel
rr1B1qbn/1N3kr1/p2b4/nq3B2/Q2n1P2/1PbR2pK/1r3PNP/1R5R b - - 0 1 legal: proof: g4 b5 d4 h5 a4 hxg4 d5 bxa4 d6 f5 e3 f4 exf4 cxd6 Ra2 d5 Ra1 d4 c4 g5 b3 d5 c5 e5 c6 e4 c7 a3 Nh3 a6 Qd3 g3 Qf3 g4 Rg1 e3 Rg2 a2 Bd3 e2 Ng5 Bd6 Bh7 d3 Na3 d4 Rb1 a1N Nh3 Nc2+ Kd2 e1B+ Kd1 d2 Ke2 d1Q+ Kf1 d3 Qe2+ Be6 c8R d2 Qd3 Kf7 Qd5 Ne7 Qc6 Qf8 Rd8 Ng6 Nb5 Nd4 Rg1 Qe2+ Kg2 d1R Bb2 Bc3 Rh1 Rd2 Ng1 Rg8 Nf3 Nh8 Ba1 Rb2 Nh4 Qd3 Qc4 Nbc6 Qa4 Na5 Bf5 Rg7 Na7 Qb5 Nc6 Kf6 Rd7 Bg8 Nd8 Rb8 Nb7 Ra8 Nc5 Rb8 Rd8 Ra7 Nb7 Kf7 Re8 Raa8 Re3 Bc7 Rf3 Bd6 Rd3 Rd2 Rbd1 Ne6 Qc4 Bce5 Bc3 Rb2 Kf1 g2+ Ke1 Rb1 Qa4 Bg7 Bf6 Rb2 Bd8 Bd4 Rb1 Bc3+ Rd2 Qd5 Ke2 g1R Ke3 Rg2 Rd3 Qb5 Ke4 Rg3 Ng2 Nd4 Qa3 Rh3 Qa4 g3 Ke3 Rh7 Ke4 Ne2 Kf3 Nd4+ Kg4 Rg7+ Kh3
1qbb1K1k/n6P/6R1/QR1qn1bP/q2P2NN/P7/1B2p1rp/1nr2BqB b - - 0 1 illegal: No proof kernel
2n2R2/2r1qb1P/r1PqPQ2/1K2N2k/2B1np2/q1NRrP1R/B2bpr2/6n1 b - - 0 1 illegal: No proof kernel
1qBN2n1/q1qr1P1P/1kP1Knp1/1nB1b3/1r3R2/1Nrb4/2P4p/n2BQ1R1 b - - 0 1 illegal: No proof kernel
Q5Nn/4P1kp/1b5P/BR1qq1rr/pbB2R1P/n3N3/3P4/2nKBbnq b - - 0 1 illegal: No possible last move
q2RN2n/b1rp2P1/BPrQn3/r7/q2P1bk1/r4NnR/R1pB2bP/K7 b - - 0 1 illegal: No proof kernel
1q6/1NP2p2/Pb4Nb/1bP3rB/1r1npr2/2Kn1qn1/k1Pr2R1/NQB1R3 b - - 0 1 illegal: Other
2k5/KpPqR3/1r5B/4QBq1/1q3n1r/npRPRN1n/P4bbP/r1n3N1 b - - 0 1 illegal: No proof kernel
q3r2r/PQRbnK2/Nq2pP2/1BR3Pp/3qBN1b/1kr2r1P/3nR3/3n4 b - - 0 1 legal: proof: e4 a5 d4 f5 f4 c5 b4 axb4 exf5 cxd4 f6 g6 f5 g5 Bf4 gxf4 Kd2 Kf7 Kd3 d5 c4 h5 a4 b5 g4 b3 h3 b2 a5 b4 a6 b3 a7 f3 c5 f2 c6 Nd7 c7 Ne5+ Kd2 d3 Kc3 d4+ Kb4 d2 Kc5 d3 Ra6 Nc4 Qf3 d1Q Nc3 b1R Qb7 b2 Rc6 d2 Nb5 Bd7 Kd5 Rc1 c8B b1Q Rc5 Rc3 Nc7 Qb6 Rh2 Bg7 Bg2 f1R Be4 Rff3 Re2 Bh6 Na6 Bg5 Rc7 Bh4 g5 Qa1 Rc5 d1N Rc7 Nd2 Rc5 Bb5+ Bd7 e6+ Ke5 Ne7 Be8+ Kf8 f7 Bd7 Kf6 Qa4 Rf2 Qc8 Ne2 Qcc6 Nf4 Qd4+ Re5 Rd8 Re2 Qc8 Rg2 Qa8 Re2 Bc8 Bb5 Bd7 Bd5 Re8 Be4 Nd5+ Kg6 Ke7 f8R Kd6 f6 Ne7+ Kg7 Ne3 Rc5 Nd1 Rc8 Ke5 Kf7 Kd6 Rg8 Ke5 Rg7 Kd6 Nc7 Kc5 Rh7 Kb4 Na6+ Ka3 Rg7 Kb3 Rc7 Rd8 Rg8 Rb8 Rgc8 Re8 Rc5 Rh8 R8c6 Rbe8 Rc7
8/pbr2n1P/r4R2/PRrb1N2/nN2qnqQ/1bPk3p/R2P2BK/2b3B1 b - - 0 1 illegal: No proof kernel
1r2N2q/1P1nNB1P/pp3r2/r4R1r/PK1nn2R/2n1Bb1Q/1b2P3/R2n2k1 b - - 0 1 illegal: No proof kernel
1r1k4/r1n1p1q1/4N1Bp/r2P2PP/1Q3N2/b1PbB2K/rn2b1nb/R2R3R b - - 0 1 legal: proof: e4 b5 b4 g5 f4 gxf4 a3 d5 a4 dxe4 axb5 c5 Be2 cxb4 Bc4 Qd4 Bf1 Qd8 Kf2 f5 d4 a5 g4 f3 Kg3 a4 h4 e3 h5 e2 c3 e1N d5 a3 g5 h6 b6 a2 b7 b3 Nh3 f2 Qe2 b2 Qe5 f4+ Kh2 f3 Ba6 f1R Rg1 f2 Bd3 Bg7 Qd4 Bg4 Bd2 Na6 b8R Ra7 Nf4 Nc7 Rb5 Ng2 Kg3 Nf6 Be3 Nd7 Bc2 Nb6 Bf5 Be5 Bc8 Nc4 Qd1 Be2 Na3 b1R Qd2 Rb2 Re1 a1B Bb7 Ra2 Rbb1 Bb2 Nb5 Ba3 Ra1 Nb2 Qd4 Kd7 Qb6 Qg8 Kh3 Qg7 Bc6+ Kd8 Rh1 Rg1 Rec1 f1B Nd4 Bd3 Rd1 Bfe2 Be8 Re1 Ng6 Bh2 Qb4 Rf1 Bf7 Rf6 Nf4 Rfa6 Bg6 Ra5 Nfe6+ Kd7 Nf4 Rb8 Nde6 Kc8 Nf8 Kd8 N8e6+
1nN1R3/2P2P2/1K2Np2/1b4Pr/2b1kr2/Qnrqr3/BB2Rp1P/1bNnb3 b - - 0 1 illegal: No proof kernel
1Nn3bR/2PRp3/n2kb3/1r1b1P1N/rPpBB3/1bP5/r1Q4N/qrn2K2 b - - 0 1 illegal: No possible last move, all moves rejected
3K2nb/1R2r1R1/4b2r/pBB3B1/PPq3n1/1P3N1p/Q3q2P/Nrb2rbk b - - 0 1 legal: proof: g4 c5 e4 f5 d4 fxg4 c3 cxd4 e5 b5 e6 b4 cxb4 dxe6 Bc4 e5 Bf1 e4 Kd2 Kf7 f4 Ke6 a4 Kd5 f5 a5 b3 h5 f6 e5 f7 g5 Bb2 e3+ Kd3 e4+ Kc2 d3+ Kc3 e2 Bg2 e1Q+ Nd2 h4 Qc1 h3 Ra3 g3 Ba1 g4 Bb2 Ra7 Bf1 e3 Qc2 e2 Qd1 g2 Ra2 g3 Qb1 Nd7 Qd1 Ne5 Bc1 Qc7+ Kb2 Bh6 f8B Ng4 Ngf3 g1B Nd4 g2 Bc5 Be6 N2f3 Ke4 Bg5 d2 Qa1 d1R Nc2 Be3 Qb1 g1B Qa1 Qf2 Kc3 e1R Bb5 Rf1 Qb1 Bc1 Na1+ Kd5 Rc2 Ke4 Qb2 Qe2 Qa2 Qc6 Rd2 Re7 Rd7 Bf8 Rc7 Rh6 Rb7 Bg7+ Ne5 Bf2 Rg1 Bh8 Rg2 Bg1 Rg3 N4f6 Nf3 Rde1 Bh4 Qa6 Rg7 Ng4 Bg5 Bf4 Qa3 Rb1 Qa2 Bc1 Bce3 Kf5 Kd4 Qc6 Bf2 Qa6 Kc5 Ke4 Be8 Qac4+ Kd6 Ne5 Bc5 Ng4 Bh4 Kf4 Bd7 Ke4 Kc7 Kf4 Kd8 Ke4 Bd6 Ke3 Bf6 Kf2 Bb5 Kg2 Bc5 Kh1 Bg5
1kBrr3/4Pq2/1PN1nbQ1/KR4n1/b5N1/P1p2nq1/2P1pB2/r1N1rn1R b - - 0 1 illegal: No proof kernel
5qR1/2p1bn1r/PQ3r2/2r1r1R1/BKbNbPN1/1p2P3/1qP1NnB1/kb6 b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 g6 fxg6 Bf4 g5 Bg3 hxg3 Qd5 g4 Qd3 Qh4 Qd1 Qd8 Kd2 Ke7 a4 Ke6 f4 Kd5 h4 Kd4 e6 b5 e7 g5 e8B d5 a5 b3 h5 b2 a6 b4 h6 g2 h7 b3 Bd7 g3 Bh3 g4 Ra3 Bb7 Ra1 Be7 Na3 b1B Qc1 Nf6 Ra2 Ne4+ Ke1 Kc3 e3 d4 Ke2 d3+ Kd1 d2 Bb5 Qf8 Nf3 g1Q+ Ne1 g2 Rh2 g3 Ba4 Nf2+ Ke2 Nd7 Qd1 Ne5 Nd3 Re8 Rh1 Be4 Nc1 Nf7 Qe1 Qh2 Rg1 Qh1 Ra1 Kb2 Nb5 d1B+ Kd2 Be2 Nd4 Bc4 Nce2 Qh2 Bf5 Qhh6 Bh3 Qhg7 Qf1 Bc5 Qe1 Re5 Ra3 Be7 Qf1 Rg8 h8N Rc5 Ng6 Rh8 Qe1 Rh7 Ne5 Qgh8 Ng4 Qf6 Rf1 g1R Bg2 Rgh1 Rg1 R1h5 Qf1 Rhe5 Ra1 Ba2 Rc1 Bb1 Qd1 Ka2 Kc3 Ka1 Kb4 Q6h8 Nc6 Qf6 Qd6 Q6h8 Ncd4 Qhg7 Bh1 g2 Qb6 Qgh8 Rgd1 g1R Bg2 Rgh1 Rg1 R1h6 Rcf1 Nh1 Rf3 Rf6 Rh3 Nf2 Rh5 Qd8 Rg5 Qhf8 Ne6 Qd4 Rg8 Qb2 N6d4 Rh3 Rh1 Rh8 Rh5 Rh7 Rhg5
2r1n3/bNpr1Pn1/b1r2R2/1rqNRBRP/2P1b3/2k1q3/Pp5B/3Kb2Q b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b3 e5 b4 axb4 dxe5 f5 Kd2 fxe4 Ke2 Ke7 Ke1 Ke8 f4 Kf7 h4 Ke6 c4 b5 h5 g5 Be2 d5 Nc3 g3 Qd4 g4 Qd1 b3 Rh3 e3 Bd3 b4 Rh4 b2 Bg6 b1B Qc2 e2 Bb2 b3 Rh2 g2 Rh4 g3 Nd1 d4 Bc3 d3 Nf3 g1R+ Kd2 b2 Be4 g2 Bd4 Ra5 Be3 Qd6 Rg4 Rb5 Rg7 Na6 Bg6 Nc5 Nc3 Nf6 Ne1 Ba6 Qc1 Be7 Bf2 Rc8 Bg3 Rf1 Bh7 g1Q Bh2 Rf2 Rg5 Qc6 Ke3 d2 Nd3 d1R Bg6 Rd2 Qf1 Bf8 Qg2 Bc2 Rf1 e1B Qh1 Rd1 Bh7 Rf3+ Ke2 Rg3 Rg8 Rg6 Rf3 Kf5 e6 Qb6 e7 Ne6 e8R Bc5 Re7 Ne8 Rgg7 Bcf2 Nc5 Rd7 Nd5 Be4 Kd1 Qc6 Nb7 Ba7 Rg8 Qe3 Rgg7 Qcc5 Rg8 Kg4 f5 Kg5 f6 Kg4 Rf8 N6g7 Rg3+ Kf5 Rg2 Ne6 Rg3 Ke5 Rg5+ Kd4 Rff7 N6g7 Ree5 Rh6 Bf5 Rg6 Rfe7 Rh6 f7 Rc6 R7e6 Kd3 Rf6 Kd4 Nb6 Kc3+ Nd5+
K1b1rRb1/PR1Bp3/2B2qpr/3k4/1n2q1Pb/1b2n1PN/Q3P3/BnN2n2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f3 g5 b5 g4 fxg4 a6 Qd3 axb5 Qe4 b4 Qg6 hxg6 Kd2 f5 Kd3 Kf7 Kc4 Ke6 Kb5 d5 a4 d3 c4 d4 h4 b3 a5 b2 a6 d2 h5 d1B a7 d3 c5 d2 c6 f4 c7 f3 Kb6 f2 g3 Qd4+ Kb5 Na6 h6 Bb3 h7 d1B Ra4 Qf6 Kb6 Bh6 Nh3 Bg5 Nc3 b1N Na2 Bh4 Rh2 Nh6 Bb2 Nb4 Bg2 f1N Bc6 Nf5 Nc1 N5e3 Rf2 Ba2 Rf3 Bdb3 Ba1 Re8 h8Q Kd6 Ka5 b5 Kb6 Ke6 Qh6 Rh8 Qf4 Rh6 Qc4+ Kd6 Qc2 Bg8 Ra3 Ke6 Rc3 Bb3 Qa2 Kd6 Be8 Kd5+ Rc6 Bf5 Kb7 Rd8 Bd7 Re8 Rb6 Bfe6 Bc8 Bf5 Ka8 Bd7 Rb8 Bf5 Ba6 Bc8 Bb7+ Qc6 Qa4 Na3 Rf2 Na2 Rf7 b4 Nf2 Bc4 Nh3 b3 Rg7 b2 Rf7 b1Q Rf8 Qe4 Qc2 Nb4 Qa2 Bf5 c8B Nb1 Bd4 Bb3 Ba1 Kd6 Be6 Qc3 Bc6 Qf6 Bf7 Bd7 Be6 Bc8 Rb7 Kc5 Bed7 Kd6 Ba4 Kd5 Bac6+
qqqn1R2/kr1Bp3/1n3RNN/3q1r2/P2BQP2/pb2rr2/2PKP1qR/8 b - - 0 1 illegal: No proof kernel
n3r2R/4Rp2/1N1RPP1n/2b1N1nP/p2QB1r1/3b2n1/P1rkb2K/1rr2B2 b - - 1 2 legal: proof: d4 h5 g4 hxg4 c4 b5 Bh3 bxc4 Bf1 c3 Nf3 c5 Bd2 e5 Ng1 c4 Bf4 Qe7 Be3 Qc5 dxc5 Rh4 Bd4 exd4 Qa4 Rh6 Qd1 Rh8 h4 Ke7 b4 Ke6 f4 Kd5 Kf2 Ke4 Kg3 Ke3 h5 g5 c6 a5 b5 d5 f5 d3 c7 c2 b6 c1R b7 c3 f6 d2 Bh3 d4 Kg2 g3 Na3 g4 Qc2 d1R Qb2 a4 Nb5 c2 Nf3 d3 Qa3 Nh6 Na7 Nd7 b8R Bc5 Re1 Re8 Qb3 Nb6 Kg1 g2 Nd4 Kd2 e4 Bf5 Rb7 Rac8 e5 Na8 Kh2 g1N Bf1 Nh3 Qb6 Ng5 Ndc6 Bg6 Rb8 g3+ Kh1 g2+ Kh2 g1R Re3 Rcd8 c8B Rg4 Bf5 Rc8 Be4 Rb1 Qd8 c1N Qd4 Rc7 Rd8 Ne2 Nc8 Rdc1 Nb6 Ng3 Rc8 Kd1 Rd8 d2 Rd3 Kc2 e6 d1B Ne5 Be2 Rc8 Ree7 Rh8 Re8 Rb3+ Bd3 Rb5 Kd2 Ra5 Rc6 Ra7 Bf5 Re7 Rc7 Beg2 Be4 Bh1 Bf3 Bhg2 Be2 Be4 Rb2 Rb1 Rbc2 Rb5 Rb7 Ra5 Rbb8 Ra6 Rb7 Nd5 Rb4 Rd6 Rbb1 Nb6
Qb6/1Pn1NPRk/3p1r1q/qP2N1p1/1n2K2B/R1rP1nr1/q1R1b1p1/4B3 b - - 0 1 legal: proof: b4 f5 e4 fxe4 g4 b5 c3 h5 Bc4 hxg4 a4 c5 Bb3 c4 axb5 cxb3 Ke2 Kf7 Ke3 Kg6 f4 e5 h4 a5 h5+ Kh7 h6 g5 d3 a4 c4 g3 b6 g2 b7 b2 b5 a3 f5 a2 f6 Bd6 f7 Ra3 c5 Qf8 c6 Rc3 c7 Nf6 Rh3 Na6 Qd2 Nb4 Nf3 Nfd5+ Kf2 e3+ Ke2 e4 Rh4 Rg8 Ne5 Rg6 Qd1 Rf6 Qa4 Qh8 Qa8 Qg7 Na3 b1Q Nac4 Qh8 Na5 Qf8 Kd1 e2+ Kd2 e1R Nac6 Re3 Ne7 Rg3 Ke2 e3 Bd2 Qb3 Be1 Qa3 Rc4 Qa5 Rc6 Qg7 Ra6 Qh8 Rc1 a1Q Rc2 Q1a2 Ra7 Rh3 Bh4 Rg3 Ra6 Qb6 Ra3 Qa5 Kd1 e2+ Kd2 e1N Ke2 Nf4+ Kd2 Nf3+ Ke3 Nfd5+ Ke4 Qg8 N5c6 Qf8 Ne5 Kh8 h7 Qh6 Ng8 Kg7 h8B+ Kh7 Bg7 Bc5 Bh8 d6 Ne7 Bg4 c8R Ba7 Rg8 Bb8 Rg6 Rf5 Bf6 Nc7 Rg7+ Kh8 N5c6 Bh5 Bd4 Rf6 Bf2 Bg4 Be1 Bh5 Rg6 Kh7 Rg8 Nh2 Ne5 Be2 Rg6 Nf3 Rg7+
4n1Rr/3B2p1/N2RPkq1/KQp3np/3r1b2/PPN1nNP1/bn6/1B1n1b2 b - - 0 1 illegal: No proof kernel
nrB1r3/pb4q1/n2PnQ1R/4rNP1/1R4P1/2rN3P/rp3p1b/B1k2K1R b - - 0 1 illegal: No proof kernel
1B2r3/p2n1PNk/K1brP2p/1n1RP2r/1R4B1/2r1b3/PpNq4/2br1R1Q b - - 0 1 legal: proof: g4 e5 h4 c5 b4 cxb4 d4 f6 g5 fxg5 dxe5 gxh4 Be3 h3 Bd2 Nh6 Bc1 Ng8 Kd2 Kf7 Kd3 Kg6 Kc4 d5+ Kb5 h2 f4 d4 c4 b3 e4 d3 e6 d2 e5 b2 c5 h6 c6 Nd7 f5+ Kh7 c7 g5 f6 g4 f7 g3 Qe2 d1R Nc3 b1R+ Ka5 b5 Qb2 g2 Bd2 b4 Nge2 g1B Nd4 b3 Nd5 Be3 Qc1 Ne7 Bh3 Bb7 Bg4 Nc8 Rf1 h1R Nc2 Rh5 Nf4 Bc6 Bb4 Nd6 Ka6 Nb5 c8R Rd6 Rb8 b2 Rd1 Be7 Rd5 Re8 Qh1 Bg5 Rb7 Rg1 Rf1 Rc8 Ba5 Bc1 Bc7 Be3 Bb8 Bc1 Ng6 Bge3 Ne7 Rc7 Nf5 Rc8 Rf4 Rd1 Ng7 Qg5 Bh3 Qg2 Rf1 Qd2 Rb6 Ba8 Bg4 Rc3 Be2 Bc6 Bg4 Nd4 Rb3 Nb5 Rb4
2rR2K1/1br3bB/1Bkq2N1/PP1N1nr1/1P3p1N/1p1p4/P5nQ/bR4nb b - - 0 1 illegal: Other
r2q2b1/3n1Bn1/5B2/1Pn1P1Bn/1p5n/2b1PP1K/Rp4p1/kN1rNqRQ b - - 0 1 illegal: No possible last move, all moves rejected
nrNn1b2/NP6/1qp2K1B/1p1kP3/bp3Bqr/RPP5/nQn4R/2nB4 b - - 0 1 illegal: No proof kernel
b1Q2R2/Np1R2r1/P2NnPPK/1qP3pn/n1qkn2p/2nB4/7b/r4BB1 b - - 0 1 illegal: Other
1b2Q1nb/r1N1RK1R/2nP2p1/2b2Rp1/2PB1N1k/1Bq1r3/p2nP1P1/q1b5 b - - 0 1 illegal: No proof kernel forced: bxLB
4KQN1/2b2PR1/qn2N1r1/N1p2P1B/n6R/1P1b1Pp1/p2qrB2/1nrk2r1 b - - 0 1 illegal: Other
bB1bR1K1/5P1r/5P2/Nq2pq2/1Pq1BP2/2Q2RpN/B1rn1pn1/k1r3r1 b - - 0 1 illegal: Other
3k2b1/3r1P2/1P1b2Kp/bR1RNPbN/3Br3/Qn1pn2p/2qn1Pq1/6NB b - - 0 1 illegal: Other
4B1nB/K3pn2/6P1/pb3pRb/3PR1P1/1P2N1Qr/kR1b3r/Nnqq1n2 b - - 0 1 illegal: No possible last move, all moves rejected
1N3nB1/BRKp1Q2/q3rb1N/2nbPRp1/p2rkPP1/B1q2n2/3P2n1/5q2 b - - 0 1 illegal: No proof kernel
2Rb1Rq1/3pr1qb/3pp3/1B1P1N2/1KP1RB1P/1n1qq1n1/2Q1P2N/kr5b b - - 0 1 legal: proof: a4 b5 axb5 g5 f4 h6 c3 gxf4 g4 h5 Qc2 hxg4 Qd3 Na6 Qd4 Nb8 Qd6 cxd6 d4 a5 Kd2 f5 h4 Kf7 b4 Kf6 c4 a4 Kc3 a3 b6 f3 b5 f2 b7 g3 b6 e6 Kb4 g2 Be3 a2 Bf4 Ne7 Nh3 g1Q Na3 Na6+ Ka5 Rh7 b8R Bb7 Ng5 Be4 d5 Nc5+ Kb4 Nb3 Bh2 f4 b7 Ke5 Rd1 a1Q Rd2 Nf5 Rd4 Re7 Nc2 Ng3 Na3 f3 Rd3 Bh7 Rc8 Rb8 Bh3 f1B Nc2 f2 Ne3 Bg2 Rd4 f1Q Bf5 Qfd1 Bc2 Qd3 Nf5 Qge3 Rf1 Bh1 Rf2 Bh6 Rg4 Qg8 Nf3+ Kf6 Re4 Bg5 Bg1 Qad4 Nh2 Qb2 Ref4 Ke5 R2f3 Ra8 b8Q Ra1 Qa8 Rb1 Qa2 Rg7 Bd1 Bd8 Rf1 Qbd4 Qc2 Re7 Rg4 Qh6 Be3 Qhg7 Bf4+ Ke4 Rg6 Qe3 Rf6 Nh5 Rf8 Ng3 Nh6 Kd4 Rg1 Ne4 Rg4 Ng3 Nf5+ Ke4 Qb2 Na1 Ba4 Nb3 Qc2 Qgd4 Nh6 Qdg7 Bb5 Kd4 Rg5 Re1 Re5 Rc1 Qd1 Rb1 Ka4 Kc3 Re4 Kb2 Qc2+ Ka1 Nf5 Qg5 Ka3 Q5g7 Kb4
bbR5/BqP4r/1p4p1/5kb1/2nKQ3/p1nP2Pq/n1RP1rRb/N1N4B b - - 0 1 illegal: No proof kernel
n1B2r2/q1p2pN1/1br2k1B/1RN4Q/1PPP3R/q1n4P/1p2nNbK/4r1r1 b - - 0 1 illegal: No proof kernel
4Qb2/r1rnn1bN/2p2n2/NRPnRB1P/2k4n/5pN1/pqP3P1/2B3Kn b - - 0 1 illegal: No proof kernel
5bN1/P2rP3/p2Nb1P1/R2BQ3/2KpbBBp/1r4Pb/2nrk1qr/n4R2 b - - 0 1 illegal: No proof kernel
R1br2q1/4Bnpb/3RN3/N1qpq1Pb/B1k3P1/3p2b1/1P1Pb2r/K2Q2R1 b - - 0 2 illegal: No proof kernel forced: bxDB
q1b1r2B/1BPpq1r1/1kpbN2b/4BK2/bb1PR1P1/3R2pn/1Q2P3/2q3N1 b - - 0 1 illegal: No proof kernel
3r1n1q/2K1Qp1R/R1PpBPq1/1pP1b1r1/1Br1b3/1q1k1P2/4N2q/1Nb1R3 b - - 0 1 illegal: Other
2R1b2q/1p4k1/3qBPB1/3q1qQr/4pn1R/1P2Ppn1/K1nPR2N/b3N2b b - - 0 2 illegal: No possible last move, all moves rejected
3BR3/1r5B/b1rPN2q/3k2p1/rp2pQ2/bP2P1q1/qR1n1NP1/b3K1bR b - - 2 3 legal: proof: c4 b5 f4 g5 a3 gxf4 c5 h6 c6 Na6 Qb3 Nb4 Qg3 dxc6 Qg7 c5 Qg5 hxg5 Nc3 c4 Nb1 Nd5 a4 b4 Kd1 Nc3+ Ke1 Nb5 axb5 Bd7 Ra3 Bf5 Ra1 Bc8 d4 Kd7 h4 Kd6 d5 e5 b3 f5 b6 a5 b7 c5 b8Q+ Qc7 h5 a4 h6 f3 h7 a3 Rh3 f2+ Kd1 c3 Rh5 c4 Qa7 c2+ Kd2 f4 Ra2 c3+ Kd3 f3 Rh4 Ba6+ Rc4 Nf6 Rb2 a2 Na3 a1B Qb7 Ne4 Bd2 c1B Qb8 c2 Bc3 Nd2 Nh3 e4+ Ke3 Rg8 h8R Rg7 Bf6 Rh7 Bd8 Ke5 Rg8 Bc5+ Rd4 Qd6 Nb5 Rb7 Nc7 Qh6 Re8+ Kd6 Rb1 Ba3 Rb2 c1R Ne6+ Rc7 Qc8 Rb7 Qd7+ Ke5 d6 Ba7 Qf7 Rc5 Rc4 Kd5 Qf4 Rc6+ Nd4 Bc5 Rcc2 Bd3 Rc1 Ra4 Rd1 Ba6 Ba5 Bb6 Rc1 Bd8 Ne6 Bf6 Bd8 Be5 Qh4 Bh2 Qf4 Bg1 Bf6 Bh2 Ng7 Nb1 Re1 Kc5 Bd8 Nc3 Kd2 Nb1+ Kd1 Kd4 e3+ Kc5 Bb5 f1Q Ra2 f2 Bd3 Nd2 Bc4 Qd3 Rb2 f1Q Bg8 Qf2 Rf1 Qg3 Bh7 Kd5 Rh1 Bg1 Nf2 Ra5 Rc2 Ra4 Ke1 Qd4 Ne6 Qb2 Rh2 Qa2 Rb2 Qf8 Rh5 Qh6 Rh1
b1q5/1pN2Qq1/b2Pnr1b/2Pr1p1p/k2R3B/1bP2P2/1r2N3/1BRq1R1K b - - 0 1 illegal: Other
1B4NR/6pn/pNb2p2/1BPb2Q1/2bN2Pq/2K2n2/k1bP1r1P/1bR1b2n b - - 0 1 illegal: No proof kernel
8/1NQp1nP1/1N6/1NPPnr2/1n1Bb1pq/pn3RP1/2Rb1qn1/nKBk4 b - - 0 2 legal: proof: b4 b5 f4 a5 a4 bxa4 h4 e5 b5 exf4 e3 g5 b6 c6 Kf2 g4 Bb5 cxb5 Ke2 Ra7 Ke1 Rc7 Qf3 Rc5 Qd1 Rg5 hxg5 Bb4 Qf3 Be7 Qd1 Bf8 c4 Ke7 d4 Ke6 Kd2 Kf5 Kc2 Ke4 g6 h5 c5 f5 g7 f3 b7 f2 Bd2 f1Q Nf3 b4 Na3 f4 Ne5 b3+ Kb2 h4 Nac4 f3 Bc1 h3 Qe2 f2 Qd2 h2 Rb1 a3+ Ka1 a2 Ba3 a4 Nf3 Na6 b8B Nb4 Kb2 a1N Bc7 Bb7 Rd1 Qh4 Kc1 b2+ Kb1 Rh5 Rg1 h1N Rc1 Rf5 Be5 Nh6 Nb6 Nf7 g3 Be7 Qe1 Kd3 e4 Bg5 Rc2 Bd2 Qd1 Qg2 Rf1 Bc6 Qc1 Ke2 Bf6 Qg1 e5 Be4 e6 Qgh2 d5 Qg1 Rd1 f1N e7 Qf2 e8N Ne3 Rf1 Ng2 Bc3 Qe1 Bd4 Nf2 Nd6 Nfd3 Nb7 Qf2 Ng5 Nde5 Ne6 Qf4 Rf3 Qe3 Qh1 Qf2 Qh2 Ke1 Nc7 Kd1 Nb5 Nbc6 Ka2 b1N Bc1 a3 Qh3 Be1 Qh1 Nd2 Qf1 Ndb3 Kb1 Nb4 Qc4 Bd2 Qc3 Na6 Qa5 Nb4 Qa7 Be1 Qb8 Bd2 Qc7
1nnN4/3n1P1p/b6q/Kn2B1p1/1n1bRQ2/4PkPP/1B2pr1n/NN2R2q b - - 1 2 legal: proof: c4 b5 b4 e5 d4 exd4 Nd2 a5 Nb1 axb4 Bb2 b3 Ba3 Ba6 Bc1 Bc8 e3 f5 Qc2 f4 Qd3 b4 Kd2 f3 Be2 fxe2 Qc2 Ra5 Qd1 Rb5 cxb5 Kf7 Qf1 Ke7 Qd1 Ke8 a4 Kf7 f4 Kf6 h3 Kf5 g3 Ke4 b6 g5 a5 d5 b7 c5 a6 d3 a7 c4 a8N c3+ Ke1 c2 Kd2 d4 f5 b2 f6 b3 Rh2 Qd6 Na3 b1Q Rf2 b2 Nc4 Bg7 Rf5 Ne7 Rd5 Rf8 Ke1 d2+ Kf2 d3 Na5 Qa6 Qf1 d1N+ Ke1 Nf2 Kd2 Ng4 Kc3 d2 Kb4 d1N Nc7 Nc3 Ne6 Na4 Nb3 Nb6 Nd8 N6d7 Nf3 Nh2 Ra4 Qa1 Rd1 b1N Bb2 c1N Re1 Na3 Qh1 Qb1 Na1 Nb5 Qf1 Qe6 Qg2 Na2+ Ka5+ Nb4 Nd2+ Kd3 Qf2 Qd1 Nb1 Ke4 Qg1 Kf3 Qh1+ Kf2 Qe4 Bh8 Qh4 Kf3 Ra3 Qdd5 Rc3 Qdc6 Rc2 Qee4 Rc4 Qg6 Rd1 Qh6 Re4 Qc1 Rdd4 Qh1 Rd1 N8a6 b8B Rf7 Bf4 Nab8 Rg1 Ba6 Re1 Nc8 Bfe5 Re7 Bc7 Re6 f7 Bd4 Be5 Rf6 Ne6 Kg2 Nd8 Rf2 Rg1+ Kf3 Rc1 Qg6 Re1 Qh6 Qf4+
2bb2NK/p5rn/PRb3B1/q1PP1pp1/1b4R1/3qrQP1/1Nrk4/1BN4r b - - 1 2 legal: proof: h4 e5 c4 d5 f4 exf4 b4 g5 b5 d4 b6 Nc6 h5 Nce7 Bb2 Ng6 Bc3 dxc3 hxg6 cxb6 Rh5 b5 Rh1 b4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 b5 a4 h5 g3 b3 d4+ Kb4 g7 b2 d5 h4 c5 h3 a5 h2 a6 f3 Qc2 f2 Ne2 Be7 Qd2 Qa5 Ra3 Nf6 g8B Bd8 Nc1 Nh7 Be2 f1B Qf4 c2 Nc3 b1Q Bf7 Rg8 Qf3 Rg7 Bg6 Qb3 Nd1 Qd3 Rg1 h1R Nb2 Rb8 Ra2 Kc3 Ra4 b4 Rg2 b3 Rb4 Qe3 Bd3 Rbb7 Rg1 Kd2 Rb6 Rh2 Rh1 Rf2 Rh4 Rbe7+ Kd6 Qd4 e5 Rg2 Be4 Bb5 e6 Qd3 Ke5 Bc6 Rf4 Re8 e7 Re2 Rg4 Re3 Ne2 Rh8 e8N c1B Nf6 Re8+ Kd6 Ree7 Ng8 Re5 Nd1 Ba3 Nb2 Bb4 Nc1 Ree7 Nd1 Rb7 Ke5 b2 Ne2 b1R Nb2 Rh1 Nc1 Rgd7 Ke6 Be7 Kf7 Bd8+ Ne7 Rdc7 Kg7 Rb8 Kh8 Rbb7 Ng8 Rg7 Qf4 Rb8 Bg2 Rbb7 Qf3 Rbe7 Bf1 R7e4 Be2 Rc4 Bd1 Rc3 Bc2 Rc4 Bb1 Rc3 Bh5 Rc2 Bg6
1N1R2Qb/P1B1N1Pp/1k2P3/r1npr1r1/B1r2p2/2n2Pnb/1Kn2R2/3N3r b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 Rh3 a5 Rh1 axb4 c4 gxh4 Qb3 b5 Qc2 b3 Qd1 b4 Kd2 Qg5+ Ke1 Qb5 cxb5 Kd8 Qd2 Ke7 Qd1 Ke8 Kd2 Kd8 g4 f5 e4 d5 a4 c5 f3 Kc7 g5 c4 g6 c3+ Kd3 h3 a5 h2 e5 f4 a6 b2 Kc2 b3+ Kd3 c2 Ra4 Ne7 Qe1 Rg8 Nc3 b1R Nge2 b2 Ng3 Kb6 Nd1 Bh3 e6 Nd7 Nf5 Bg7 Qg3 Nc5+ Kd2 Nc6 Ne7 d3 Ra5 Nd4 Kc3 d2 a7 Ra1 Rg1 b1R Ra2 h1R Ba3 c1N Bd3 Bh8 Bc2 Rab8 Ba4 Rbc8 Rg2 Rg7 Rb2 Rc7 Rf2 Nc2 Bb4 Ra3+ Rb3 Rba1 Kb2 Ne2 Qg2 Ng3 Rc3 Nb3 Bd6 Rc4 Qg1 Nc5 Rb3 Ka5 b6 Ka6 Rb4 Re3 b7 Re5 b8N+ Ka5 Rb7 Rg8 Rd7 Kb6 Rd8 Ra3 Be8 Ra5 Qg2 Rf8 Ba4 Rff5 g7 Rg5 Qh2 Bg4 Qh5 Bh3 Qf7 Ne2 Qg8 Ng3 Ne3 d1N+ Kc1 Nc3+ Nd1 Na3 Kb2 Nc2 Bc7+
R1r2n1b/7p/k1n3nQ/2rBPK2/p1Pp4/Rr3P2/1B2bbrP/1N1NnN2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 exf6 Bf4 f5 Be3 f4 Bc1 f3 e3 f5 Ra2 f4 Ra1 f2+ Kd2 f3 Ba6 Qf6 Bd3 f1N+ Ke1 f2+ Ke2 Qf3+ gxf3 Ke7 Ra3 Kf7 Ra1 Ke8 b4 Kd8 e4 Kc7 c3 Kb6 e5 g5 b5 a5 Qb3 d5 Bd2 g4 Qb2 g3 Bc1 g2 Bg5 a3 Nh3 g1B Qb3 a2 Qb2 a4 Bh6 Nd2 Qb3 f1R Bc2 Bf2 Kd3 Nc6 Qb2 Rg1 Bg7 Rb8 Bh6 Rg2 Bb3 Nge7 Qc1 Nc4 Bg5 Ka5 b6 Ba6 b7 Ng6 Be7 Bb5 Qh6 Ka6 Ba3 Bg7 Bb2 Nb6+ Bc4 Nd7 Rc1 Bg1 Nf2 Rhc8 Nd1 Ndf8 Rc2 Bf2 Re2 Bh8 Re3 Ra8 b8N+ Kb7 Nd7 Ka6 Re2 Rab8 Nf6 Rb6 Nh5 Rb7 Kd2 d3 Ng3 d4 Bd5 Bc4 Nf1 Rb3 Kc1 d2+ Kc2 Bb5 Re3 Be2 c4 Rb5 Rb3 Rc5 Ndc3 d1R Rb8 Rd3 Nd1 Ra3 Ndc3 Bd1+ Kd3 Be2+ Ke4 Rb3 Nd1 Bh4 Na3 Bg3 Kf5 Bf2 Rc1 a1N Rc3 Nc2 Nb1 Ne1 Rd3 Rb6 Ra3 Rb3 Ra8+
2KN4/R3rB1p/npNP2Pb/B2qq2k/2bqp3/b1n2p2/1PQ1B1PR/4r3 b - - 0 1 illegal: No possible last move, all moves rejected
nn3r2/1kq1n1P1/P1b3P1/p5Kp/4p2P/1B1Q3b/R1RB2Np/2BrNb1q b - - 0 1 illegal: No possible last move, all moves rejected
q4B2/n1kp4/Pq3q1b/2r1Nb2/1NPNP2p/rpBQRKp1/4R1P1/b1n5 b - - 0 1 illegal: No proof kernel
7B/BPrQ1PKp/N1n4P/b1pr1B2/3r1bb1/qqk1ppR1/R3P3/3n1N2 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 b5 Qb3 f5 g4 fxg4 Qf3 gxf3 axb5 Qd3 Ra5 Qd4 Ra1 Qd8 Kf2 Kd7 Ke3 Ke6 Ke4 a5 d4 g5 h4 a4 b4 g4 h5 c3 h6 g3 b6 c2 b5 a3 b7 g2 b6 a2 Ba3 c1R Nh3 g1B Bb2 Nc6 b8B Ra5 b7 Bh2 Nd2 Rd5 f5+ Kd6 f6 e5 f7 Nge7 Nf4 Bg4 Bg2 Nf5 Bh3 Ne3 Ba7 Nd1 Ne6 Bf4 Nc5 Qe7 Rf1 Qe6 Rg1 Be7 Bc3 Rd8 Na6 Bh4 Nf1 Be1 Bb2 Ba5 Rg3 Rc4 Rc1 a1Q Rc2 Rcc5 Bc3 Qa3 Ra2 Nb8 Ba1 Kc6 Bc3 Kb5 Bb2 Kc4 Bc3 R5d6 d5 Nc6 Bb2 R6d7 d6 Re7 d7 Rd5 Bc1 Kc3 Bce3 Rc8 d8Q Red7 Bc1 Nd4 Qe7 c5 Qd6 Rdd8 Qd7 Rc7 Be3 Qb6 Bg1 Nc6 Bd4+ Kc4 Bc3 Qbb3 Ba1 Bh5 Kf5 e4+ Kf6 e3 Bf5 Bg4 Be5 Rd4 Kg7 Kc3 Qe6 Rd5 Qd7 Nf2 Kg8 Nd1 Bh8 Ne5 Kf8 Nc6 Kg7
1q2b1Nb/P1ppnB2/PrbP4/pNPR3R/1qQn4/6p1/r3k3/2K1BNr1 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 a5 bxa5 h5 Bh3 hxg4 Bg2 Ne7 Bf1 Ng8 a4 b6 a6 Rh6 a7 Rd6 c3 Rh6 a5 Nf6 a6 Ng8 Qa4 Rh8 Qa5 bxa5 Kd1 Ke7 d4 Kf6 h4 Kf5 d5 Ke4 e3 f5 c4 g5 d6 f3 c5 f2 h5 g3 h6 g2 h7 g4 Bc4 f1Q+ Kd2 g3 Be2 f4 Nf3 g1R Bb2 Bb7 Bc3 Bg7 Nd4 f3 Nb5 f2 Rh5 Nc6 Bc4 Kf3 e4 Rb8 e5 Nge7 Bf7 Qc4 e6 f1B Kc1 Ke2 Nd2 Nd4 Rd5 Bg2+ Nf1 Qb4 Be1 Be4 Rb1 Re8 h8Q Bc6 Qh4 Bg6 Rh5 Be5 Rb3 Rb7 Rd3 Qb8 Qf4 Bh8 Rd1 Ndf5 Rd5 Nd4 Qh4 Rb6 Qf4 Ng8 e7 Rf8 e8N Ne7 Nf6 Re8 Qh4 Rf8 Be6 Be8 Ng8 Rf3 Bf7 Ra3 Qf6 Ra4 Qg6 Ra2 Qc2+ Kf3 Qc3+ Ke2 Qc4+
1NKn1B1r/r3R3/P1N3pk/3q1P1p/1p4Bn/QbR5/p3PBqP/5bbb b - - 0 1 illegal: No proof kernel
5r1B/4p3/3PRP1k/b3pK1N/QN1N1pPP/3nqq1R/n5bp/1B1rn1n1 b - - 0 1 illegal: No proof kernel
R2nb1r1/2Q2b1p/k2PP2P/3r2q1/N3Rp2/1rP1b1NK/p1B2N1p/2B1q1r1 b - - 0 1 illegal: No proof kernel
3b1RN1/K2BkN2/P2pBP1r/R2rqb2/6pr/B2Q2Pn/pp1bbP2/q7 b - - 0 1 illegal: No possible last move
N1Br3R/pbPpR2P/2BP1pnb/K5bb/1Q3P2/Nr6/Rp5b/k1r1n3 b - - 0 2 illegal: No possible last move
R5n1/3k1N2/1B1p3r/K2pPn1p/1QPNr1bP/2qRp1bP/Bp4N1/n1b5 b - - 0 1 illegal: No proof kernel
5rBN/k1Q5/3p1Ppr/1npb2pn/2B2N1p/q1Rr1B1P/RbP1P3/2b4K b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f6 g4 axb4 g5 fxg5 a4 Bd6 Bb2 Bf8 Ba3 bxa3 f4 c5 Kf2 b5 Kg2 d6 e6 b4 f5 a2 e7 Kd7 e8B+ Kc7 a5 Kb7 a6+ Ka7 Bb5 b3 Nh3 b2 Qd3 Be6 Na3 b1R Bc4 Qa5 Nf4 Nc6 h3 h5 Rg1 h4 Kh1 Bd5+ Bg2 Rd1 Bf3 Nd4 Qb3 Rd3 Rg3 g6 Qc3 Kb6 a7 Nb5 Qg7 Nf6 Qe7 Re8 a8B Rh6 Qc7+ Ka6 Bc6 Nh5 Bd7 Rd8 Be6 Bg7 Bg8 Bb2 f6 Rf8 Bg2 Rb3 Rc3 Bc1 Bf3 Qb4 Bd3 Qa4 Nc4 Qb4 Ne5 Qa3 Qg7 Kb6 Bc4 Ka6 Nf7 Ka7 Re3 Rd3 Nh8+ Kb6 Qc7+ Ka6 Rb1 a1B Rb4 Be5 Rb2 Bc3 Ra2 B3b2 Qc8+ Ka7 Qc6 Rd4 Rc3 Rd3 Qc7+
kB6/5rqN/pB1pnP1R/1r1Pp2P/N3b3/3Pq2R/p1rp1b1K/Q3R1n1 b - - 0 1 illegal: No proof kernel
q7/2p3BK/q2BP1p1/2rk1rQR/NR1p2b1/2P1Pn2/B1P1rbpp/2Nb4 b - - 0 1 illegal: Other
1br1B3/R2PNbpK/1nQpnpP1/P3N1p1/Nq1P2qp/k6R/8/1B1n2n1 b - - 0 2 illegal: No proof kernel
4R2B/qp5p/Rk1bp2p/1P2q1N1/pP2r1Bq/B2K4/4P1Pr/n2bq1NQ b - - 0 2 illegal: No proof kernel forced: bxLB
6K1/k2BP2p/p2n4/rpb3NP/5p1n/1PQP2rr/pnR1RRbn/3BN3 b - - 1 2 illegal: No proof kernel
b1n2NQ1/3kNPn1/bn2B2B/p5pP/r1P1n2p/6p1/Pb2KRpB/r4R2 b - - 0 1 illegal: No possible last move
1Q3kN1/p1bPR1p1/5q2/5PP1/BNbb1rr1/2p1p2K/2P3pp/1NnqR1B1 b - - 0 2 legal: proof: g4 d5 h4 b5 a4 bxa4 e4 dxe4 Ra3 Nc6 Ra1 Nd4 Na3 Ne6 Nb1 Ng5 hxg5 f5 Ba6 fxg4 Bd3 Ba6 Bf1 Bc8 b4 c5 f4 h5 Kf2 e5 Kg2 h4 d4 h3+ Kg3 e3 b5 e4 d5 a3 d6 e2 b6 e1Q+ Kh2 a2 b7 c4 b8N e3 Ba3 Rh4 Be2 Nf6 Nc6 Nh5 Nf3 Ng3 Nfd4 Be6 Nb4 Qf6 d7+ Ke7 Bd3 Ne2 Rf1 Nc1 Nf5+ Kf7 Bb2 Bd6 Be5 Bc7 Ne7 Rf8 Ng8 Bd5 Qf3 Qd1 Qe4 Be6 Qb7 Bd5 Qb8 g3+ Kg1 g2 Kh2 Rg4 f5 Re8 Rf4 Kf8 Re4 Rf4 Kg3 h2 Kh3 Rg4 Bg3 Rc8 Re7 Re8 Na3 Bf7 Rb1 a1B Bf2 Bd4 Bg1 c3 Bb5 Bc4 Ba4 Rf4 Ra1 Rg4 Qb5 Rb8 Nb1 Rb6 Qe5 Re6 Qb5 Ree4 Qb8+ Bd8 Qf4 Qf3+ Qg3 Nd3 Nd2 Qe2 Qe5 Ref4 Qb5 Bc7 Re1 Nc1 Nb1 Qd1 Qb8+
1QR4K/bb1R1p1B/n5P1/kNpp4/pRr1B2n/1pp4r/PP2b1PN/6b1 b - - 1 2 illegal: No proof kernel
2RBn1Nq/2rn4/2b2bp1/1BP1N3/1k2q1P1/np2r1Rn/QP3P1K/b1q2R1n b - - 0 1 illegal: No proof kernel
Bq1BNr2/1p2b2R/n1p4b/qQ5r/1bP1P1RP/k7/1Prbq3/K2nNB1b b - - 0 1 illegal: Other
2KBbbrN/1nRN3r/2Q2p2/5r1r/6Pk/1p2PB2/1PRb1P1B/1qn1nrn1 b - - 0 1 illegal: No proof kernel
1q3N2/2R2rpP/1Bqn3p/1r4P1/b1r1RrbK/5B1P/bP1b2kN/Qr1n3R b - - 0 1 illegal: Other
3N2Q1/n1Pn1P1p/3Rqbn1/1k3bpK/2n1r3/b1R1qNBP/4B1P1/1Rrr3r b - - 0 1 legal: proof: d4 c5 b4 cxd4 e4 a5 e5 axb4 e6 fxe6 Ba6 e5 Bf1 e4 Ke2 g5 c4 e5 a4 d5 f4 Kd7 h3 Kc6 c5 b5 f5 b3 a5 d3+ Kf2 b4 Kg3 d2 Kg4 d4 a6 d3 a7 e3 Na3 e2 Nb1 e1Q Rh2 e4 Be2 e3 Na3 b2 Bf3+ Qd5 Kh5 b1N f6 b3 f7 b2 Bg4 e2 Nb5 Nc3 Nc7 b1N Qc2 d1R Be3 d2 Qa2 Nd7 Bf3 Rc1 Qb3 d1R Be4 Nd2 Bf2 Ne7 Nf3 Nc4 Bg3 Ng6 Bd3 Qe6 Qb8 Nb5 Rh1 Qd2 Rf1 e1B Be2 Qde3 Ra3 Bb4 Rc3 Ba3 Rf2 Rh1 Rf1 Bh6 Rd1 Bg7 Rd5 Bf6 Rdd3 Bb7 Qg8 Re8 a8R Bc8 Rd2 Na7 Rd6+ Kb7 c6+ Kb6 Nb5 Re7 c7+ Kc5 Nbd4 Re8 Nc6 Kb5 Qf8 Rd8 Qg7 Rhe8 Qg8 Bb7 Na5 Be4 Nb7 Bf5 Be1 Ndf8 Bg3 Rd7 Nd8 Ree7 Ra6 Rdd1 Rc6 Nd7 Rd6 Nc8 Ra4 Na7 Raa6 Qd5 Ra4 Re4 Raa6 Qe6 Ra4 Bb2 Ra1 Ba3 Rb1+
2rrNB1b/B1P1pqPR/3pn2K/nB2k3/R2N4/1q1bP1Qb/2pP4/1nq4r b - - 0 1 illegal: No proof kernel
3Q4/RpBP4/2bn3P/1P1rN1R1/r2ppbr1/rNn3n1/1r1bP1B1/2kqR1K1 b - - 0 1 illegal: No proof kernel
q6q/4B3/qn2rR1p/1N1k1N1P/2pb3R/bpP1BqqN/QP1Kn1bP/r7 b - - 2 3 illegal: Other
3Q1Kb1/1kp1N3/pnPrR3/P2BR2n/3q1R1P/qn1Ppnb1/1B1n2qN/1r6 b - - 0 1 illegal: No possible last move
N1B1q3/1q1P1q2/p1rp4/pqR1k3/P3bnnK/Q2P2N1/4PBq1/B1br1n1R b - - 0 1 illegal: Other
n4q2/1Q1nq1p1/p2Nb2p/3RnrPB/K3PP2/b4bBP/RbRNr1k1/7b b - - 0 1 illegal: No proof kernel
r2n1q2/b1pR1pN1/rp1Nq2B/1P2r3/2Pq2P1/1B1k1nK1/1P1R2QR/1q3b1b b - - 0 1 illegal: Other
4bq2/3r1r2/pQK1R1p1/1rNRb3/1kPb1p2/P4P2/1NP1B2q/BnB1qrn1 b - - 0 1 illegal: Other
1q1Q1r2/RB3pn1/b3p1NP/n1b2PK1/2rN1r2/B3P2q/Bb1RPpk1/q6q b - - 0 1 illegal: Other
1b1NqrQ1/B7/2kp4/p2n1bnb/1rN2R1p/1PbB2PP/3P1q2/2Kn1qRR b - - 0 1 illegal: No proof kernel
1b1kbr1n/P1r4b/p4N2/P1b1pPR1/6p1/B2KN1P1/bb1n1B2/QRr1qB2 b - - 0 1 illegal: Other
rQBN3b/1pn3q1/R3nP1r/1P2K1pp/B5P1/1N2kR1P/br1r3n/1N4nn b - - 1 3 legal: proof: d4 c5 b4 cxd4 e4 a5 b5 f5 Ba3 fxe4 Bb4 axb4 Ke2 Kf7 c4 Ke6 f4 Kf5 a4 e5 a5 d5 c5 h5 g3 g5 h3 d3+ Ke3 b3 a6 d2 a7 b2 c6 d4+ Kf2 e3+ Kf3 d3 c7 e4+ Kg2 e2 Nc3 b1R Qe1 d1N Nd5 e3 Kf3 d2 Ra6 Qe7 Rg6 Na6 Rb6 Rh6 Rc6 Bg7 Bg2 Rb2 Nc3 Nf2 Nb1 Nc5 Ra6 Be6 c8B d1R Qa5 Rd3 Qc7 Nf6 Qb8 Bh8 Rh2 Ne8 g4+ Kf6 f5 Nh1 Bf1 Qg7 Rf2 Nc7 Bg2 Ke5 f6 Kd4 Bf1 Bg8 Bg2 N5e6 Rf1 Kc4 Ke4 e1N Rf3 e2 Ke5 Rdd2 Bf1 Nc2 Bg2 e1N Ne2 Kc5 Nc1 Ncd4 Nb3+ Kc4 Bf1+ Ne2 Bg2 Ng1 Bf1+ Rd3 Be2 Bf7 Bd1 Rdd2 Nc5 Bg8 Ba4 Bf7 Nb3 Bg8 Rf4+ Kd3 Rf1 Ng2 Rf5 Ne3 Rf4 Ke2 Rf3 Nf1 Rf2+ Ke3 Nd4 Nd8 Rf5 Ba2 Nb3 Nh2 Rf2 Nd5 Rf4 Ne6 Rf3+ Ke2 Qd6 Rb8 a8N Nd8 Nc7 Ra8 Rd3 Kf2 Ne6 Ke2 Qb8 Nc7 Ned4+ Kf2 Nc6 Nde6 Nd8 Ke2 Re3+ Kf2 Rf3+ Ke2 Rf1 Ke3 Rf3+
3k4/3Bbp1r/3nrpN1/1n1nr2b/p6P/PPnRqN2/rB3P2/2rRBK1Q b - - 0 1 illegal: No proof kernel
3B2NK/rP2Rb2/2nqQ1Np/nbN2P1P/1b1r3p/k3b1pR/r3BnP1/7n b - - 0 1 illegal: No proof kernel
1KB1n2R/3Bprbb/5rqp/4P2P/rpP1Rq2/1Q3N2/pb3BP1/N2q1n1k b - - 0 1 illegal: No proof kernel
1B1B3k/b1bR2p1/4p1N1/6P1/PP2K3/1r1NQrp1/R3P1Bp/qbqq1nnr b - - 0 1 illegal: No proof kernel
1n6/1bN3Bp/2n2NPK/1n1r3P/1pnrRp2/Q1b1bP2/BP2p1qR/3B2nk b - - 2 3 illegal: No possible last move
3q1nNr/7P/pp2Br1b/2kn2B1/1P3N2/P1np2p1/1rPQ1Rb1/Kn1nR1R1 b - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 g5 cxd4 g6 hxg6 Bd2 g5 Bc1 g4 Kd2 Ke7 e4 Kd6 h4 g5 b3 f5 e5+ Kc5 h5 d5 h6 f3 h7 f4 e6 g3 e7 g4 e8R f2 Nh3 b6 Re5 f3 Re8 d3 Kc3 g2 Kb2 g1N Bd2 d4 Re2 g3 Na3 Nf6 Rb1 Nd5 Ka1 Nd7 Re8 Bb7 Rb2 Bh6 Nb5 Nf8 Nf4 Ne2 Rh2 Nec3 Bh3 f1N Re1 f2 Nc7 a6 Bc1 d2 a3 d3 Be6 Bc6 Qe2 d1N Rb1 Nd2 Ne8 f1R Nf6 Ra7 Ng8 Rf7 Rf2 Rf6 Bb2 Rh1 Rc1 Ndb1 Qd2 Nb4 Rg1 Bg2 Re1 Nbd5 Rg1 N1e3 Rce1 Ned1 Bc1 Bf1 Qe3+ Kc6 Ng2 Nb2 Ree2 Nd2 Qg5 Kc5 Re5 Rh4 Rh1 Re4 Rg1 Re1 Nh4 Bg2 Ng6 Ndb1 Bd2 Rc1 Ree1 Nbd1 Qg4 Ne2 Bg5 Nd2+ Ka2 Rb1 Nf4 Rb2+ Ka1 Nec3 Qe2 Ndb1 Qe3+ Kc6 Qd2 Kc5 b4+
2Bn1N1r/1qppR1R1/P6B/KN3Q1P/4b1Rr/1kpP4/b1P1nb1p/1n3rr1 b - - 0 1 illegal: Other
K2kq3/1p2RNB1/2pP1b1n/4pb1n/prn1Nr2/1Pr1P2B/3RQP1n/5B1b b - - 0 1 illegal: No proof kernel
5b2/3NqR1N/2bP2P1/3p3p/p2B2p1/rB1brRP1/Pnbb1R2/K1kn2qQ b - - 0 1 illegal: Other
1n5K/2Pbn1Rn/1bnkBp1p/R1Np2n1/6NQ/1r1BBp1P/q4PP1/3q1r2 b - - 0 1 illegal: No proof kernel
1r1k1K2/r2q1NB1/Nq3Rpn/3b2pn/p3BNP1/P3P2p/Qr1n1P2/1nb1R3 b - - 0 1 illegal: No proof kernel
B7/N1n2bk1/r1p1qr2/p1BB3R/P1nRpb1N/qbPb2P1/P3p2K/3Q2n1 b - - 0 1 illegal: Other
R1Q5/1k1p2K1/pb1B1n2/P2RP1pb/r1NBq1Nn/b2q4/p1bPB1P1/2rq4 b - - 2 3 illegal: No proof kernel
R1r5/1PN1P3/bkp3qR/p1b1b1pB/P1pr4/1Q1n2PR/4N1b1/bKB1bn2 b - - 0 1 illegal: No proof kernel
4qr2/PpR1r1pb/1r2pQ1n/1r1pP2R/n1Bb4/1NNkB2B/P2P4/K2b1b2 b - - 0 1 illegal: Other
n1B3r1/PpB3nP/1Np3b1/Qp1R2br/1nPK1p1n/1P4r1/1r2k3/N4qRN b - - 0 1 illegal: No proof kernel
5R2/4ppB1/Qb1p2P1/P2Prr2/Kpb2qNb/4P1r1/n1BbN2R/2k2rRn b - - 0 1 illegal: No proof kernel
R2b3r/R5nN/1qk1nNbB/1p1p3p/pBpP4/1P1bn1P1/K1QrrN1P/8 b - - 0 3 illegal: No proof kernel
2q5/B1n1bkr1/1ppN1p2/1r3bBK/n1Npnb2/PQ1B4/R1P1pP1P/1r5R b - - 0 1 illegal: No proof kernel
k4KnR/2pppN2/2q1P1q1/1p2nrN1/3BPRbp/rP3b1P/2Q2R2/b2Bn3 b - - 1 3 illegal: Other
3R3N/pp4pq/br3R1q/QprB4/P1nB2P1/2NN1rn1/KP1bkP1p/4n3 b - - 2 3 illegal: No proof kernel
2R2k1n/pbpn3p/2pqB3/q2Q3P/P1KNN1PR/3p4/N1P2r2/bnB2r1b b - - 2 3 illegal: No possible last move
rn1B4/P1kQN1p1/R1n1ppPr/3B2R1/b2P1P2/3n2K1/q1Np1p2/1nRnb3 b - - 0 1 illegal: No possible last move
2K1Rnb1/3n1p2/ppQBp2N/P3r3/1P1pN2P/2n1PB2/1rk4b/qR2bn1R b - - 1 3 legal: proof: f4 g5 g4 gxf4 d4 c5 g5 cxd4 g6 hxg6 Nd2 g5 Nb1 g4 Kd2 d5 Kd3 Kd7 h4 Kd6 a4 Kc5 c4 Kb4 a5 a6 b3 f3 e3 g3 c5 f2 c6 g2 c7 Nd7 Qc2 Rb8 Qc6 Ngf6 Bb2 Nh7 Be2 f1N Nh3 g1B Qg6 Bh2 Kc2 d3+ Kc1 d4 Nd2 Qe8 Ne4 d2+ Kc2 d1N Kd3 Nc3 Nhf2 Rg8 Qf6 Rg5 Rb1 Re5 Ng4 e6 Qf3 Bc5 Bc1 Nhf8 Nh6 Qe7 Bb2 Qg5 Bc1 Qg1 Qg2 Be7 Bf3 Bd6 Bd2 Ka3 Kc4 Bb4 Rd1 Kb2 Rb1+ Kc2 Be1+ Ne2 Bg3 Be1 Bf4 Rf5 Bd6 Re5 Qg5 Nc3 Qd8 Nf6 Qe8 Bd7 c8R Ba4 Qb5 N6d7 Qc6 Bb5+ Kb4 Be2 Re8 Bd3 Ng3 Bh7 Ne4 Bg8 Kc4 Nb6+ Kb4 Nd5+ Kc5 Nf6+ Kb6 N6d7+ Kc7 b6 Qb5 Rc8+ Kb7 Rc4 Qc6 Ra4 b4 Ra2 Nf2 Rb2 Kc8 Qg4 Bg2 Qd1 Bf3 Qc1 Ra1 Qb1 Ne4 Qa2 Rd1 Qa1 Rb1
k2b4/1NR3B1/1qB4K/r1RNp1p1/prp2N2/2PqnP2/P1b1pQP1/1nb3b1 b - - 2 3 illegal: No proof kernel
Q2RBb2/2Pr3N/1pK2P2/N1p2n1p/k1np1n1P/2BNp1R1/qP1q4/1b1r1n2 b - - 0 1 illegal: No proof kernel
5k2/n5bp/r4pp1/2B1NR1P/1Pr2PPQ/1b1r2RN/p1ppKRn1/qB1n4 b - - 0 3 legal: proof: c4 d5 d4 dxc4 a4 e5 a5 exd4 a6 bxa6 Bd2 a5 Bc1 a4 h4 a5 f4 c5 b4 c3 e4 f6 g4 g6 h5 a3 e5 a2 e6 c4 e7 a4 Ke2 d3+ Ke3 c2 Na3 c3 Rh4 d2 Ne2 Qa5 Qe1 Bg7 Rh3 Be6 Qg3 Ra6 Qh4 Bb3 Bg2 Nc6 Rb1 a1N Qe1 Na7 Qh4 Nh6 Ng1 Nf5+ Ke2 Ne3 Be4 Nd1 Bb2 c1R Nc4 a3 Rg3 Nc2 Ne5 Ne1 Nh3 Ng2 Ra1 a2 Bb1 Qb6 Nc6 Kf7 e8R Qd4 Re5 Rd8 Rf5 Kf8 Ne5 Qg1 Be4 Rc2 Rb1 Rd3 Ra1 Nde3 Rf1 Qh1 Rf2 Qa1 Bd5 Nd1 Be4 Rd7 Bd3 Rc1 Bc2 Rd3 Bb1 Nde3 Nc6 c2 Kf3 Re1 Bd4 Nd1+ Be3 Rc3 Ne5 Rc4 Bd4 Re4 Be3 Red4 Ke2 Rd3 Bc5+
b4BKb/BN3nRp/3p4/1p1pnp2/2N1Bn1P/rP1r1pP1/1q2P1k1/2Q1n1R1 b - - 0 1 illegal: No proof kernel
5Q2/R3PrRk/pN1B4/3rPn2/4p2b/K2Nnn2/PP3B1q/2b1rQ1n b - - 0 1 legal: proof: f4 h5 c4 Rh7 g4 Rh6 gxh5 Rh8 d4 e6 c5 e5 c6 bxc6 d5 cxd5 fxe5 Qf6 Qc2 Qg5 Qd1 Qd8 e4 g5 h3 g4 e6 g3 e5 Ba6 Bg2 Be2 Be4 Bg4 hxg4 dxe4 Kd2 c5 Kc3 d5 Kb3 f5 g5 f4 g6 c4+ Ka4 a6 h6 d4 h7 g2 g7 f3 Nc3 f2 Nb1 f1N Qg4 d3 Rh5 d2 Qf3 d1N Qf4 c3 Qd2 c2 Qe1 Ne7 g8Q Qd2 Ne2 g1R Qf2 Nde3 Ka3 Ng3 Nbc3 Re1 Qf1 Nh1 Na4 Nbc6 Nf4 Nd4 Nb6 Ra7 Nd3 Qh2 Qg7 Rg8 h8B Nf3 Rh7 Rb7 Bd2 c1B Bb4 N7f5 Bd6 Be7 Qh6 Rd7 Bf6 Rg7 Bh4 Kf8 Bf2 Kg8 Qf4 Bg5 e7 Rf7 Rg7+ Kh8 Rb1 Bh4 Ra1 Bd2 Rc1 Rd8 Rc7 Bc1 Ra7 Rd7 Bc7 Rd5 Bd6 Nfg3 Qf6 Ngf5 Rg3+ Kh7 Rg5 Rg7 Qf8 Rf7 Rg7+
1N4nn/KP2q1bQ/2rPr1P1/7B/2k1rbb1/2Q1R1B1/1qNn2pP/3R3b b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Qb3 g4 e4 h5 Qf3 gxf3 g4 Nh6 g5 Ng8 b4 Rh7 Ra3 Rh8 Re3 Be7 Re2 Bf8 Rg2 Qd7 Rg3 Qd8 Rg4 hxg4 Kf2 Ke7 d4 Kd6 g6 a5 b6 f5 b7 c5 b5 a4 b6 c4 Nh3 g3+ Kg1 a3 Ng5 a2 Ne6 a1Q Nc5 c3 Bb5 c2 Nd7 f2+ Kf1 Rh4 Ke2 f1N Kd3 f3 Kc4 f2 Na3 Nc6 Nb8 Qe7 Bf4+ Ne5+ Kb4 c1B Nc2 Be3 Be2 Ra6 Kb5 Nd2 Rd1 f1R Bh5 Qa2 Nc6 Bg7 b8Q+ Qc7 b7 Re1 Qa8 Qe7 Nb8 Rc6 Qa5 Bd7 Qc3 Qb2+ Ka5 Bc8 Bh6 Nf7 e5+ Kc7 e6 Kd6 Bg5 Re4 Bf6 f4 Bh4 Qg5 e7 f3 e8R f2 Re7 f1B Re5 Bg2 Re7 Rc7 Ka6 Bh1 Ka7 g2 Bg3+ Bf4 Re5 Rc6 Re7 Bg4 Re5 Kc7 d6+ Kd8 d5 Qe7 d7 Kc7 Re6 Nh8 Re5 Kd6 d8Q+ Bd7 Qf8 Bg4 Qf5 R1e3 Qg5 Re1 Qh6 R1e2 Qh7 R2e3 Qb3 Kc5 Qa3+ Kc4 d6 Rd4 Re4 Re1 Re3 Re4 Qa5 Re6 Rf3 R1e5 Re3 Re4 Qc3+
nK5R/nRPrP1n1/1kPn2q1/3B1Qr1/2Pr3N/Q2p1r2/1B2r1b1/2N3b1 b - - 0 1 illegal: No possible last move
1R1q2k1/3P1rp1/1q1Pb2b/Q2b3b/R2N1P2/1b1NbBqQ/1P1r4/1B3n1K b - - 0 1 illegal: No proof kernel
K4Q1k/P2Q1rq1/r1P2b2/Rn2q2P/PB2n1np/1N2q3/B2n3N/2qr1R2 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 c5 bxa5 e5 d3 exf4 d4 cxd4 g4 h5 Qd3 b6 Qd2 Bb7 Qd1 Bf3 Ba3 gxh4 Bc1 h3 Bb2 h4 Bc1 Be4 Nf3 Bg6 Ng1 Bh5 gxh5 Qe7 Ba3 Qf6 Bc1 Qd8 Kf2 d5 Kf3 f5 e4 Kf7 a4 Kg7 c4 d3 e5 d4 e6 b5 c5 d2 a6 b4 c6 d3 e7 b3 e8Q h2 Qde2 d1Q Nh3 b2 Nd2 b1N Ba3 Qd4 Nc4 d2 Nf2 Nh6 Qe6 Qb3+ Ne3 d1R Ng4 Nc3 Qb5 Rh7 Qc8 Qe5 Qe6 Kh8 Qbd5 Nb5 Ra2 Be7 Re2 Rf7 Qc5 Nd7 Bb4 Nf6 Qd7 Ne4 Re1 Qbc3 Bc4 Bf6 Rhf1 h1Q+ Ke2 Qb3 Nh2 Ng4 Nc2 Qg1 Na1 Qbb2+ Kf3 Qbd4 Ba2 Qge3+ Kg2 Ra7 Nb3 f3+ Kh3 f4 Qf8+ Kh7 Re2 f2+ Kg2 Qa1 Rd2 Qab2 Rd5 f3+ Kh3 Rb7 a7 Rb6 Rc5 Ra6 Rd5 Nbc3 Ra5 Nb5 Rg1 f1N Rh1 Nfd2 Rf1 f2+ Kg2 Q3f4 Kh3 Nb1 Kg2 Qfg5 Kf3 Nbd2+ Ke2 Qc1 Kd3 Qg7 Bc3 Nf3+ Kc4 Qe3 Bb4 Qe8 Qde7 Nfd2+ Kd5 Qb8 Ke6 Qe5+ Kd7 Nh6 Kc8 Ng4 Rh1 f1Q Kb7 Qc4 Rf1 Qcc5 Qd7 Qc1 Qc5 Kg8 Ka8 Kh8 Qf8+
1q3b1k/1Bbr2p1/Q1Pq1r2/2Q2PPN/nKp3Rn/n3qP1b/3R1N2/6B1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Nf6 g5 Ng8 Qg4 Bc8 c4 hxg4 b4 c5 Ra2 cxb4 c5 d6 Rc2 d5 Rc4 dxc4 d4 Kf7 Kd2 a5 d5 e5 b6 e4 h3 a4 b7 e3+ Kc2 a3 d6 g3 d7 a2 c6 a1B Nd2 g2 Ne4 e2 Be3 e1Q Ne2 g1Q N2g3 Rh6 Nh5 Qh2 Rg1 Be5 Rg4 Na6 b8Q Rf6 Qb6 Ra7 Qc5 Ne7 Be2 Qc7 d8R Kg8 Rd2 Qd6 Bd4 b3+ Kc3 b2 Bd1 Nc7 Kb4 b1N Ba4 Kh7 Bb5 Na8 Ba6 Na3 Bb7 Kh8 Be3 Nb6 Bd4 Na4 h4 Be6 Be3 Ng6 f3 Bf7 Bf2 Qe3 Bg1 Qb8 Nf2 Bc7 Ng3 Be8 h5 Nh4 h6 Bf7 Nh5 Qd6 Nd1 Bd5 Nf2 Be4 Rc2 Bd3 Ra2 Kg8 Rd2 Bf1 h7+ Kf7 h8Q Bh3 Qh6 Kg8 Qg6 Kh8 Qf7 Qbd8 Qe8 Qb8 Qc8 Bb6 Ba8 Rd7 Qa6 Bc7+ Bb7
Q3KN2/P4nRr/5R1r/1BP1P3/p2P1n2/pB1n4/3brk1b/N3rbQq b - - 0 1 illegal: No proof kernel
3Qn3/Q2Pp3/1P1kq3/2B2qN1/q1P1Pp1R/br3R1N/n2K2b1/rq3Bn1 b - - 0 1 legal: proof: g4 c5 c4 d5 a4 h5 f4 d4 b3 hxg4 Qc2 g5 fxg5 b6 Qc3 dxc3 b4 b5 axb5 cxb4 h4 Kd7 e4 a5 d4 f5 d5 a4 g6 c2 g7 a3 b6 a2 h5 b3 d6 b2 h6 g3 h7 g2 Rh2 Nc6 Kd2 Nb4 Bd3 Nf6 g8Q Bg7 Rh4 Qf8 Rh6 Ne8 Nh3 g1N Na3 b1Q Nb5 Bb2 Nc7 Ba3 Nf2 f4 Nh3 Qf5 Bf1 Qb3 Ne6 Qa4 Rb1 a1Q Rh5 Qae5 Neg5 Na2 Rh4 Qee6 Rb3 Ra5 Rf3 Rb5 Qf8 Rb3 Bb2 Rg8 h8Q Rg6 Bc3 c1Q+ Kd3 Qb1+ Kd2 Kc6 Bb4 Rh6 Bc5 Rh7 Rg4 Rh5 Qa1 Rh4 Nf2 Rh1 Nfh3 Qfd5+ Bd3 Qa7 Qfg7 Qf1 Qge5 Qh6 Kc2 Bc1 Qed4 Nc3 Nf2 Nge2 Rgg3 Bh3 Qa6 Na2 Rg2 Qf5 Qa3 Qhe6 Rh2 Bg2 Rh4 Bb2 Qa5 Ba3 Kd2 Qa1 Nfh3 Qa6 Qb4 Qa4 Qa5 Rc1 Qa7 Ng1 Qe5 Rcb1 d7 Rf1 Qeb8 Qb2+ Bc2 Ra1 Qd8 Qb1 Bd1 Qg8 Be2 Qge6 Be3 Kd6 Bf1 Qc5 Bf2 Qcf5 Bc5+
bn1N1q2/P2Bkp2/1Q2PP1q/3nq1B1/3n1PKb/4N1R1/rp6/r3Qq1R b - - 0 1 illegal: No possible last move
rBR3b1/PQ2nk2/5qPp/N3p1r1/1b2p3/1n1Pn2P/2Bq1QnK/3N1R2 b - - 0 1 legal: proof: e4 d5 c4 dxe4 g4 f5 b4 a6 b5 axb5 gxf5 bxc4 Bd3 c3 Be2 Ra3 Bf1 Ra8 a4 c5 f4 g5 Kf2 b5 Kg2 b4 h3 b3 f6 c2 a5 b2 a6 g4 a7 c4 Ra3 c3 Ra6 g3 Qe2 Nd7 Ra4 Nb6 Ra5 Kf7 Qg4 Nd5 Ra4 Be6 Na3 b1Q Ne2 Ne3+ Kg1 h6 Nc4 g2 Na5 Qbb6 Kh2 g1N Rc4 Qdd4 Ba3 c1N Rc8 c2 Nc3 Nge2 Bd6 Nb3 Bb8 c1Q Nd1 Qdd6 d3 Qd2 Qg1 Qdc6 f5 Nf4+ Be2 Nfg2 Qf2 Rh7 Bf3 Rg7 Rf1 Bd5 Be2 e5 Bf3 Ne7 Be2 Rg3 Bh5+ Kg8 f7+ Kg7 Bf3 Rg5 Be2 Qf6 Bh5 Ng6 Bg4 Bb4 f8Q+ Kh7 Qd8 Kg7 Qd7+ Ne7 Qb7 Bg8 Bh5 Qa6 Be8 Qg6 Bc6 Kf7 Ba4 Na1 Bc2 Nb3 Rg1 Qab6 Rf1 Qbf6 fxg6+
nR1q3b/PBn2r2/1q2rpPQ/n1RN1k2/Q2qP2B/qP6/p2p2K1/1N6 b - - 0 1 legal: proof: f4 c5 h4 e5 a4 exf4 d4 cxd4 h5 a5 h6 b5 axb5 Ba6 bxa6 gxh6 Nh3 h5 Ng1 h4 Kf2 Ke7 c4 Ke6 g4 h5 g5 d5 c5 h3 b3 f3 g6 d3 c6 f6 a7 a4 c7 h2 c8Q+ Nd7 Qc5 a3 Qb4 a2 Ba3 h4 Qb8 h3 Kg3 d2 Qe1 d1Q Bc5 d4 Qf2 d3 Bd6 Ne7 Qfb6 f2 Bf4+ Nc6 Qe3+ Kf5 Bd6 Rh7 Qc7 Bg7 Qb8 Nb6 Qe7 Bh8 Bb4 Na5 Qed6 Rf7 Bg2 f1N+ Kf2 Ne3 Qd4 Qd2 Bb7 Ned5 Kg3 Qd1 Be1 Nc7 Qa4 d2 Kf3 Qc1 Bh4 Qa3 Kg3 Qd4 Qf8 Re8 Qh6 Nba8 Nc3 Qdb4 Rc1 Qd4 Nb1 Re6 Rc3 Nd5 Rc8 Ndc7 Rb8 Qd8 Nf3 Qd4 Rc1 h1Q Ne5 h2 Ng4 Qc6 Rc5+ Qcd5 Kh3 h1Q+ Kg3 Qhc1 Kh3 Qcc4 Kh2 Qb5 Ne3+ Ke4 Kg2 Qb6 Rc6 Qd8 Nd5 Ke5 Rc5 Kf5 e4+
B4K2/p2BP3/1pb4n/PN4N1/1bk1q3/1P2npn1/3Pr1Rn/2b1RQqQ b - - 0 1 legal: proof: f4 e5 c4 exf4 g3 d5 cxd5 Na6 Nf3 Nc5 Ng1 Nb3 Bg2 Nxc1 Bh3 Ne7 Bf1 Ng8 h4 g5 Qb3 c5 Qc2 Bd7 Qd1 Rc8 Bh3 Rc6 Bf1 Rg6 Kf2 g4 Ke1 Rg5 hxg5 fxg3 e4 Ke7 a4 Kd6 a5 h5 g6 f5 g7 b6 Nh3 c4 e5+ Kc5 d6 h4 e6 g2 Kf2 g1N Ke3 c3 Kf4 g3 Ke5 c2 Be2 f4 Ra3 g2 Ng5 h3 Ra1 h2 Na3 Qe7 Bg4 Nb3 Nb5 Bc6 d7 Kc4 d8Q Nh6 g8B Nd4 Qa8 Ndf5 Rb1 Qh7 Kf6 Nf3 Rg1 Ne3 Qf1+ Qd3 Rc1 h1N Re1 Bb4 Kg7 c1B Bf5 Nh2 e7+ Kc5 Bge6 Qe4 Bd5 Ng3 Bd7 Rh7+ Kf8 f3 Qe8 Rg7 Qh5 Rh7 Rh1 g1Q Qhh3 N2g4 Rh2 Rg7 Rhe2 Nh2 Qhg2 Rg6 Qh1 Re6 Rg2 Re5 Bf5 Be8 Bb7 Bc6 Ba8 Kd5 Bd7 Kc5 Rge2 Kc4 Rg2+ Qd3 Nh7 Nd1 Ng5 Re2 Nc7 Qe4 Nb5 Ne3 b3+
r1b4K/3n4/1P3PbR/N2kQ1p1/rBp1pQ2/nPp1PB2/q6N/b3R1r1 b - - 0 1 legal: proof: c4 c5 a4 d5 g4 f5 d4 fxg4 h3 gxh3 Nf3 b5 axb5 Qc7 Ng1 dxc4 Bg5 c3 Be3 c4 Bc1 Qc5 dxc5 Bd7 Bd2 Bg4 Bc1 Bc8 f4 Kf7 Kf2 Ke6 Kf3 g5 Kg4 a5 Kh5 h2 b6 a4 e3 a3 b3 a2 c6 Na6 c7 Nb4 Qd3 Nc2 Ne2 Na3 Nd2 Ra4 Nd4+ Kd5 f5 e5 Be2 h6 Kg6 h5 Re1 h1R N2f3 h4 Nh2 h3 Bf3+ e4 Qf1 Nf6 Qf2 Nd7 f6 Rg1 Nc6 Bb4 Rb1 a1Q Kg7 Qa2 Na5 Rf8 Qg3 Re8 Qf4 Bc5 Ng4 h2 Rb2 h1B Rh2 Bg2 Rh6 Bh3 Nh2 Bf5 Bb2 Bf8+ Kh8 Bg6 Bc1 Bb7 Bb2 Ra8 c8Q Ba6 Qcc7 Bc8 Ra1 Nb5 Re1 Ba3 Bc1 Bb2 Qb8 Ba1 Ba3 Bh5 Qbc7 Bg6 Bb4 Na3 Qce5+
qn1rN2n/3P2pp/2q4N/5BQ1/R1rpP1p1/R4rB1/kP4Pq/n2QK3 b - - 0 1 illegal: No possible last move, all moves rejected
3rb3/P1qN3k/1rPn1r2/K1BqbP2/b1QQ2nR/2nNrPR1/B4q2/5r2 b - - 0 1 illegal: No possible last move, all moves rejected
rR1qn1rk/3N2P1/q1n1P2n/1Qn1b3/1Br2PB1/Pb5R/4N1Kb/1bq4Q b - - 0 1 illegal: No possible last move, all moves rejected
1B4qr/2PQ1n1N/Pqb1Rr1q/3qr1p1/3bn3/3K3n/BR3P1P/1N1kqQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 d4 hxg4 Nh3 c5 Ng1 cxd4 Ke2 Kf7 a4 Kf6 c4 Ke5 c5 Ke4 f6 e5 f7 b5 a5 d5 c6 g5 c7 g3 a6 b3 Ra2 g2 Ra1 b2 Qb3 d3+ Kd2 b4 Qa4 d4 Qa5 b3 Ra2 Nc6 Qc5 Bb7 Qa3 Bg7 f8Q Nf6 Qfe7 Qg8 Qa4 Rf8 Qc4 Nd8 Ne2 Kf3 Rg1 e4 Qef7 e3+ Kd1 d2 Ra3 Bc6 Qd7 Nf7 Qc5 Ne4 Nbc3 b1Q Qc8 b2 Rh1 g1N Nf4 Nh3 Qc4 Qa2 Kc2 d1R Rg1 e2 Ne6 e1Q Qd7 Re8 Nf8 Re5 Qb5 Qe6 Rb3 Qh6 Bc4 Rd3 Nb1 Ke2 Nh7 Bf6 Qb4 Bg7 Bd5 Rf3 Be3 Rf6 Qc3 Nfd6 Rb6 Nf7 Ba2 d3+ Kb3 d2 Kc2 Kf3 Kd3 d1Q+ Qd2 Qb3+ Qc3 Qe6 Qc1 Qd5+ Bd4 Ba4 Re6 Bc6 Kc2 Ke2 Ba7 Bf8 Rg4 Bc5 Bb8 Bd4 Rf4 Qb4 Qh1 Qb6 Qg2 Ke1 Kd3 Kd1 Rf3 Rf4 Re3 Rff5 Re2 Rf6 Na3 b1Q+ Rc2 Q1b2 Nb1 Q2b4 Qf1+ Qe1 Rb2
2r3r1/1nq3qP/N3nBN1/bQqbR3/q1prP3/1b1P3P/1kn1K3/Q2B1R2 b - - 0 1 illegal: No possible last move
2nbKR2/2PB2qp/2P1Q2b/Pk2rnQP/1qbB2N1/2R1rr2/1N2bn2/5q2 b - - 0 1 legal: proof: e4 a5 d4 d5 g4 dxe4 b4 axb4 g5 c5 dxc5 f6 Be3 fxg5 Bc1 g4 Ke2 e5 Ke3 g5 a4 b5 f4 g3 h4 b3 c4 g4 a5 g2 h5 g3 f5 b4 c6 b2 f6 b3 c7 Nh6 c5 Bg4 Ra4 Qd7 Be2 Nc6 Nc3 b1B Bf1 b2 Nb5 Ba2 Qd2 b1Q Qd5 Na7 Qc4 Qg7 f7+ Kd7 Na3 Kc6 Qe2 Qb4 Nb1 Re8 Qc4 Be2 Nd2 Nc8 Qd5+ Kb5 Ngf3 g1N Bb2 g2 Nh2 Nh3 Ng4 Bac4 Ra3 Nf2 Qe6 g1Q Bh3 Qf1 c6 Be7 f8Q Bd8 Qff5 Rhf8 Rc3 Rf6 Nb1 Re7 Qg5 Rf3+ Kd2 Nf5 Na3+ Ka6 Ba1 e3+ Kc2 e4 Rg1 Ba2 Nc4 Kb5 Nb2 Bac4 Rh1 Qg2 Rd1 Qf1 Rd7 Re8 Rf7 Re7 Rf8 Re8 Qd6 Re5 Qe6 Bd1+ Kb1 e2 Kc1 e1R Kd2 Bde2 Kc2 Ng3 Kd2 Rf6 Ke3 Nf5+ Kf4 e3 Qg6 Bed3 Kg5 e2 Qe7 Rd1 Qe6 e1B Qe8 Be2 Qe6 Qf7 Qg7 Rd3 Qg8 Rde3 Qg6 Nfd6+ Kh6 Rff3 Qg5 Qf4 Kg7 Nf5+ Kf7 Bd2 Ke8 Bc1 Qg7 Qh6 Qg5 Qg7 Qf4 Qh8 Na4 Qd1 Qe7 Qa3 Nh6 Qb4 Rb3 R3e4 Bd4 Nh4 Rc3 Qg7 Nb2 Qf1 Bd7 Nf5 Qe6 Be3 Qh4 Bc1 Ng4 Bh6 Qhe7 Ree3 Qg5
q1R2r2/pRP1Pb2/K3kB1n/1rr1Pn2/b1bN1Q2/2P1bB2/Nb6/b4Qn1 b - - 0 1 illegal: Other
1qrqnr1n/N3RQ2/2R5/P2r2Br/1bP3b1/1P1Nprk1/3rPq2/2KBQ3 b - - 0 1 illegal: No proof kernel
3N1Kn1/2r3Bb/pn1NR1bP/2P2Pnn/4r3/P2rB1b1/5qbR/n2QQk2 b - - 0 1 illegal: No possible last move, all moves rejected
k3n3/rbr2P1K/5bP1/1b1npN1b/1PQ3P1/R4nbN/4BQRr/q3Br2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 bxa4 e5 g5 hxg5 f6 Bc4 fxe5 Bf1 e4 Kd2 h5 c4 d5 b4 Kd7 f4 Kc7 c5 Kb7 f5 a5 f6 d3 Ke3 d4+ Kf4 h4 g3 e3 f7 d2 g6 a3 Kg5 d3 Bg2+ Nc6 Nh3 a2 Na3 e2 Rb1 a1B Qb3 e1N Rg1 d1B Bb2 a4 Qc4 d2 Qf1 Be2 Qf5 d1B Bf6 Qa5 Qd3 Nf3+ Kf4 Ra7 Bg5 Nf6 Nc2 a3 Qd2 a2 Qe1 Ne8 Qd2 Bb5 Qf2 Ka8 Rc1 Bf6 Ra1 Rc7 Bf1 Bb7 Ne3 e5+ Kf5 Bh6 Rg2 Ne7+ Ke6 Nd5 c6 Qa3 Nf5 Qb2 Bc1 Bf4 Bd2 Rh6 Be2 Rh5 Rc1 a1R Be1 Ra7 Rc3 Qa1 Ra3 Rc8 Ng1 h3 c7 h2 Nh3 h1R Bd2 Rb8 c8Q Rf1 Qc4 Rc8 Be1 Rh7 Ng5 Rh2 Nh3 Nd2 Bd3 Bh5 g4 Nf3 Be2 B6g5 Qe3 Bg3 Qf2 Ndf6 Ke7 Rc7+ Kf8 Nd5 Kg8 Bf6 Kh7
2b1Rn2/2Pr1r2/Q3Pk1r/1r3bBP/Pn2QR1N/K5pn/1r1b4/1N1Bb2q b - - 0 1 illegal: No possible last move
1q1Bb3/2P4P/RN2qbN1/p1R1nnb1/r3r1QP/bQPB4/5n2/1K3bkb b - - 0 1 illegal: Other
rn1qRk1N/1Pq5/5B2/2RPn2r/pb2nP1n/r1N2Q2/br2Pb2/K2B2Q1 b - - 0 1 illegal: No proof kernel
5rr1/Q3rq2/1BB2Rrb/p4P1r/qbb1P3/PN1r1r1Q/K1Rn2kP/7N b - - 0 1 legal: proof: e4 f5 c4 fxe4 g4 h5 c5 hxg4 c6 bxc6 Bd3 c5 Bf1 c4 d3 e5 Kd2 e3+ Kc3 e2 Bf4 e4 Bc1 e3 Kc2 Na6 Bg2 Nc5 Bf1 Ne4 dxe4 Qh4 Qe1 Qf6 Qd1 Qd8 f4 Kf7 b4 Ke6 Kb2 e1B f5+ Ke5 a3 Kf4 b5 d5 b6 g5 b7 a5 b8Q d4 Qdb3 g3 Qa7 c5 Ka2 g4 Kb2 g2 Qg7 c3+ Ka2 d3 Bb2 c2 Qgf7 c1Q Qfb7 g3 Q7b5 c4 Qc2 c3 Qca4 d2 Qc6 d1R Qcb5 e2 Qbc4 c2 Qe8 Nf6 Qb3 Qc7 Qd3 Qf7+ Qb3 Ng4 Qc6 Rh5 Qcc4 Be6 Qbb5 Ne5 Qcd5 Beb4 Kb3 e1R Bc3 Bh6 Qa6 Rd3 Nh3+ Kf3 Nf2 g1R Ka2 g2 Bd4 Ree3 Qa7 Qd1 Bb6 Nc4 Qd8 c1R Qg5 Qa4 Qh4 Rdd8 Bd3 Nd2+ Bc4 Rb3 Bd5 Rc7 Bc6 Rf1 Rg1 Rg8 Nh1 Re7 Qd7 Raf8 Qa7 Rf2 Rc1 g1R Rc2 Nc4 Nd2+ Kg2 Re1 Rff3 Rec1 Rbd3 Nb3+ Nd2 Rc4 Rd6 R1c2 Rdd3 Rd4 Bc4 Rd6 Kf1 Re6 R1g6 Rf6 Kg2 Qh3+
2nbqq1k/1r2Q2b/1BBN3R/qP2p2Q/3PPNb1/r3q3/2qqP1K1/R1r5 b - - 0 1 legal: proof: h4 b5 a4 bxa4 c4 g5 f3 gxh4 c5 Na6 c6 Nc5 Qc2 Ne4 fxe4 dxc6 Qb3 c5 Qd1 c4 Kf2 f5 g4 Kf7 d4 Kg7 b4 h5 b5 e5 g5 c5 g6 a5 Bf4 a3 Nd2 c3 Qe1 a2 Nb1 a4 Bg5 c2 Qd1 c1Q Nf3 h3 Nh2 f4 Kg1 h4 Nd2 c4 Qe1 c3 Ng4 a3 Nf2 h2+ Kg2 c2 Nd1 h3+ Kf3 Ne7 Bh4 Rh7 Ne3 Qe8 Ng2 Kh8 Bg5 Bf5 Kf2 f3 Nc4 Qd2 Nd6 c1R Rg1 h1B Rb1 a1Q Bh6 h2 Nc8 a2 Be3 Ra3 Bg5 Qab2 Ra1 Qbc2 Nd6 Nc8 Nf4 Be7 Bh3 Bd8 Kf1 f2 g7+ Kg8 Bh4 Bf3 Rg6 B3g4 Rh6 Bg6 Kg2 B6f5 Rb1 a1Q Qh1 Qac3 Ra1 Qa5 Be7 Bg6 Nf7 B6f5 Bc5 Bg6 Bb6 Qe3 Nd3 Qed2 Nd6 f1Q+ Kg3 Qf6 Kg2 Qff8 Nf4 B6f5 Qe1 Bg6 Qh4 B6f5 Qe7 h1Q+ Kf2 Qhe1+ Kg2 Qdd3 Ba7 Qe3 Bb6 Bh5 Bg4 Q1d2 Bh3 Bfg6 Bd7 Bg4 Rh1 Rh5 Bc6 Rf5 Rh6 Rf7 Qh4 Ra7 Qh5 Rb7 Nc4 Kf7 g8Q+ Kf6 Qd5 Kg7 Qc5 Bh7 Qe7+ Kh8 Nd6
1Kb2q2/2p1r1Pr/2P2R2/2B1b2r/1P1r1NR1/n1k3bN/1bB1b1QP/1b1q1Q2 b - - 0 1 legal: proof: d4 e5 a4 exd4 g4 b5 g5 bxa4 g6 hxg6 Qd2 g5 Qd1 g4 f3 g5 Nc3 g3 Nb1 Nc6 f4 g4 Qd3 Ne5 Qd2 Nc4 Qd1 Nd2 Bg2 Ne4 Bf1 Ng5 fxg5 Rh4 Qd2 Rh3 Qd1 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 Kb5 a5 e4 f5 c4 d5 Kc6 f4 b4 g2 c5 a3 g6 g3 g7 a2 Be2 a4 Bg4 d3 Bb2+ d4 Bf3 d2 Qe2 d1R Qc2 a3 Nd2 Ne7+ Kb5 Rh7 c6 Nd5 Nb3 Bd6 Qf2 Ne3 Rb1 a1B Qe1 a2 Ne2 g1Q Qf2 g2 Ba3 d3 Nbd4 d2 Qg3 Qf8 Bc1 Bb2 Ne6 a1B Ng5 Nc4 Nh3 Re1 Bh5 d1B Be3 Bc2 Bc5 Ra3 Bg4 Rd3 Bf5 Rd4 Rd1 Qf1 Rg1 Bb1 Qg6 f3 Nef4 f2 Qg5 Be6 Ka6 Bc8+ Ka7 Na3 Kb8 Re2 Rd3 Qd1 Rf3 f1B Qg3 Re3 Qf2 Be2 Qf1 Be7 Bg6 Bh4 Rf2 Rg3 Rf3 Rg5 Rf2 Rgh5 Rf3 Bg3 Bf5 Kf6 e5+ Kf7 e6+ Kf6 e7 Ke5 Ne6 Kd5 Bc2 Kc4 Rf6 Kc3 e8Q Bea6 Nef4 Be2 Rh1 g1R Qg6 Rg2 Rg1 Rf2 Rf5 Rf3 Rf7 Re3 Rf6 Re8 Qe4 Re7 Qeg2 Bh4 Rf7 Bc1 Bb3 Rd8 Qe1+ Kb2 Qgf2 Rd2 Rg4 Bg3 Rf6 Rd8 Ba2 Kc2 Qfg1 Be5 Qg2 Rd4 Qef1 Kc3 Bb3 Bb2 Bc2
3Nr1B1/2rrb2K/2Pb1k2/1n6/1PnR2Qp/2qn2p1/2NPbP1B/R1Q1q1q1 b - - 0 1 illegal: No proof kernel
2K3R1/1B1P3P/1RP2pqq/b1NQ1rN1/2Q1bP2/2n2nrB/4rpk1/2q2nb1 b - - 0 1 illegal: No proof kernel
1rBq2N1/k1rrbR2/8/2b1b1Q1/2P1R1bp/qP2pb2/P2PN1n1/1K2B1Qn b - - 0 1 illegal: No proof kernel
b1q2BBK/Q2rP3/7Q/q6P/1p1p4/R1rPq2b/R1nnk1P1/NqN3bq b - - 0 1 illegal: No proof kernel
k2n3B/8/4NP1P/PqR1r2p/rqNQnbRP/2bn3Q/2rp2b1/3KB1r1 b - - 0 1 illegal: No proof kernel
2k5/B4rqN/2nqPp1p/3r4/1bQ2P1K/1Bn1n2P/qQb1RP1N/4R1qb b - - 0 1 legal: proof: d4 e5 c4 exd4 b4 Qh4 g3 Qf4 gxf4 a6 b5 axb5 Be3 bxc4 Bc1 c3 a4 Kd8 e4 d5 e5 c5 a5 b5 h3 g5 a6 d3 e6 c4 a7 h6 Qe2 d4 Ba3 d2+ Kd1 g4 Bc5 f6 Qd3 b4 Ke2 d1B+ Ke1 b3 Qf3 b2 Bd6 d3 Na3 b1N Be2 c2 Qb7 c1Q Qb2 d2+ Kf1 c3 Kg2 g3 Nc4 c2 Bf3 Nc3 Ne2 Rh7 Ng1 Rf7 Be5 Qb1 Qb4 c1Q Nd6 Qa2 Qb2 Bb7 Bd5 Nc6 Bd4 Nge7 Bb3 Ned5 Nf3 Bc2 Nh2 d1Q Ne4 Bb4 Re1 Kc8 Re2 Ne3+ Kf3 g2 Kg3 g1Q+ Kh4 Qg6 Ng5 Qg7 Nh7 Qcd2 Rb1 Qdg1 Rbe1 Rb8 Bb6 Qd6 Bc5 Ba8 Bd4 Rb5 Bc5 Bb7 a8Q+ Qb8 Qa4 Qd6 Bb6 Rd5 Ba7 Ba6 Bb8 Bad3 Qb5 Be4 Qc4 Bh1 Ba7
3R1qb1/r5p1/1P4Q1/q2nRPBP/rpBk1b2/rr6/P2NnnK1/1N1q1Q2 b - - 0 1 illegal: No proof kernel
3qn1RQ/4pK2/2bN4/P2pP3/1rb1rP2/1nN1QBq1/R4P1r/b2knnB1 b - - 0 1 legal: proof: h4 c5 d4 cxd4 b4 g5 g3 gxh4 b5 f5 b6 f4 gxf4 axb6 Nd2 b5 Nb1 b4 Kd2 Kf7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 c4 b5 a4 h5 c5 h3 c6 d3 c7 d2 Ba3 h2 Ke5 h4 Bb2 b3 Nf3 h3 e4 b4 Qc2 d1N Nfd2 Ne3 Ra2 Ba6 Nc3 Nf6 Nb5 Ng2 Nb1 Kf3 Rg1 h1Q N1a3 h2 Kf5 Ne8 Kg6 Bg7 Bc4 Nc6 Qd2 Nd4 Bc3 b2 Rga1 b1N Kf7 b3 Bf1 b2 Nc2 Qg1 a5 h1B Bc4 Rb8 Bd5 d6 Qc1 Ke2 Bc6 Rh7 Bb7 Nb3 Bf6 Rh8 Bh4 Qh2 Bg3 Qh3 Ne1 N1d2 Bh2 b1R Qc3 Rc1 Nf3 Re1 Qc5 Qh4 Rc1 Ba1 Ng1+ Kd3 Ba8 Re2 Rf1 Ne1 Qe5 Re3 Ne2 Bf3 Rg1 Nf1 Rg5 Qg3 Bg1 Rh2 Rg8 Rb7 Qh8 Rb8 c8Q Rb6 Nc7 Rb4 Qe6 Bc4 Nb5 Bh1 Ra3 Kd2 Ra2+ Kd1 Bd5 Bf3 e5 Qh4 Qh3 Bh1 Qf3 Qg3 Qe4 Rd3 Qe3 Rd4 Be6 Bc6 Bd5 Bd3 Bh1 d5 Bf3 Re4 Nd6 Bc4 Nc3#
1B1Nq3/Q1PR2p1/1n1rb3/qN1Bp1PR/4P3/k1qP1r2/nn1b3b/1K1n2Q1 b - - 0 1 illegal: No proof kernel
q3RQ2/PB1n2r1/4q3/1nb1Pp1n/2PB2r1/1QN1p1r1/P3qR1K/N1kn1b2 b - - 0 1 illegal: No proof kernel
nB1QB1Q1/P2b2NP/1b1bn3/2R3n1/p3NP1P/2K1k2r/6qp/r2Rnn1b b - - 0 1 illegal: No proof kernel
1N1Q1QnN/1p4bK/3np3/b1kr1PP1/PqBR3P/1nR4b/2r1b2B/rr6 b - - 0 1 illegal: No proof kernel
3R1K2/Rbq2br1/Pq1n1q1B/3P4/3p4/1N1Pp1Q1/1Nk2bPn/rq1Bb1Q1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 gxh4 b4 axb4 e5 d5 e6 d4 Qe2 Qd5 cxd5 fxe6 Qg4 e5 Qd1 e4 Ke2 Kd7 f4 Kd6 a4 Kc5 f5 Kc4 f6 e5 a5 h5 f7 b5 Ra3 c5 Rd3 e3 Kf3 b3 Ke4 h3 Bb2 h4 Ne2 h2 Nc1 h3 Qg4 e2 Ba1 e1B Bb2 b4 Qd7 Nh6 Rg1 h1Q Ne2 h2 Qc6 Ng4 Rh3 Be7 f8Q Rh7 Qh8 Na6 Qe6 Nc7 Kf5 e4 Kg6 e3 Ba1 Kd3 Qee5 b2 Rf3 c4 Rf4 b3 Rf7 c3 Nf4+ Kc2 Rf5 Nb5 Nd3 Bb7 Be2 Nd6 Qg3 Bh4 Rf8 Bf2 Rd1 Qf1 Rd8 h1Q Qf6 Be1 Qff2 Nh2 Qg1 Rg7+ Kh6 Qf7 Bh5 Bf2 Rf1 Be1 Rf2 Qc7 Rf7 Qb6 Bf3 Ba6 Ra7 Bb7 Q1f2 Qf1 Qg1 Rc8 a6 Rc5 Ne5 Ra5 Nc4 Ra4 Qg4 Bhf2 Qg3 Kc1 Bd1 c2 Nc3 b1Q Ne4 Ra2 Bc3 b2 Bb4 Ra1 Bc5 Qa2 Bb4 b1B Nb2 Qac4 Ba3 Qcc7 Bb4 Qd3 Nc5 Qf5 Ba3 Qf6+ Kh5 Ba2 Nb3+ Kb1 Bc5 c1Q d3 Qc2 Na5 Bc4 Nb3 Bb5 Bb4 Bd7 Bc5 Bf5 Bb4 Bg6+ Kh6 Rg8 Bc5 Bf7+ Kh7 Rg7+ Kh8 Ne4 Bd6 Qc1 Bf4 Nd6 Bh6 Be8 Bf3 Kc2 Bh5 Qb1 Be2 Rh7+ Kg8 Bf7+ Kf8 Rg7 Bd1+
2Nb2R1/P2kBRr1/5qp1/1P1KQ1Q1/2N1B3/2pbP1rn/1bP3rq/b3n2r b - - 0 1 illegal: No proof kernel
b3K1Br/3RBPQ1/nPb5/b3Qp2/NRq2k1b/2bP1bp1/1Nn2P2/2q1n3 b - - 0 1 illegal: No proof kernel
q1B1q1kb/pN1p2P1/8/BQP2q1n/Pr2q1R1/3QNq1q/K2P4/1nr2r1R b - - 0 2 legal: proof: g4 c5 b4 cxb4 f4 e6 f5 exf5 h3 fxg4 Bb2 g3 Ba3 g5 Bb2 b6 Ba3 g4 Bb2 g2 Ba3 g3 Bc1 Bb7 Na3 Bf3 Nb1 Bg4 hxg4 Bd6 Rh4 Bc5 Rh1 Bf8 c4 h5 a4 f5 e4 Kf7 e5 h4 g5 b5 c5 h3 Nf3 g1R Bb2 f4 Ke2 h2 Kd3 g2 Kc2 b3+ Kc1 b4 Qe1 Qe8 Be2 Rh4 Ra3 Na6 Qd1 Bg7 Ba1 b2+ Kc2 b3+ Kc3 Bh8 Qf1 Nb4 Qf2 Nf6 e6+ Kg8 e7 Nh5+ Qd4 Nc2 g6 Rc1 g7 g1Q Ng5 f3 Ba6 f2 Qd3 f1Q Ne6 Qg3 Nd8 Rb4 Bc8 Qgh3 Nb7 Rb8 Nd8 Rf4 Nb7 Rf6 Kc4 Qff3 Nc3 b1Q Nd5 b2 Ne3 Rf5 Rc3 Na3+ Kb3 Rf7 Qb5 Qbe4 Rc4 Nb1 Ka2 Qef5 Rg4 Rf8 Re1 h1Q Qd3 Q1g2 Rh1 Rf6 Nd6 Qa8 Nb7 Qfe4 Qb5 Rff1 Qd3 Qgf3 Qb5 Qef8 e8Q Qef5 Qe4 Qe8 Nd6 Rb7 Qed3 Rb6 Nb7 Q5e4 Qc6 Rb4 Qcb5 Nc3+ Ka3 b1Q Bb2 Qc2 Ba1 Qef5 Bb2 Nb1+ Ka2 Qc3 Ba1 Qce5 Bb2 Qee4 Bc3 Rc4 Ba5 Rd4 Qc3 Rb4 Qcd3
2N5/b1N2nKp/r7/P1Pqnq2/q1Qq1n2/1R2p1B1/2P1PQB1/q2nkb1R b - - 0 1 illegal: No possible last move, all moves rejected
2n2kq1/1r4r1/p5Rr/P1rb4/4P1Bq/Qn1q1R1N/pK2P1rP/3NQ1Bq b - - 0 1 illegal: No proof kernel
1Q1Q2n1/n1n1k2P/6p1/2rpPrn1/1Nq1r3/P1R1br2/1B2B1P1/r2RqN1K b - - 0 1 illegal: No proof kernel
1b1k4/1q6/r2P1p2/P3Rq2/br2bPPB/1p2Knrp/4n1RN/N1Q2QBq b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h3 axb4 h4 gxh4 d4 Kd7 d6 e6 d5 Ne7 e3 Ng8 Bc4 Ke8 d7+ Ke7 Bb3 Kd6 Bc4 Kc5 d6 Kc6 Bd5+ exd5 Kd2 h5 a4 b5 g4 f6 f4 b3 a5 d4 e4 d3 e5 b2 e6 b4 e7 h3 e8Q h2 Qe5 h4 Qde1 h3 Qf2 Be7 Qh5 Nh6 Qe8 Ra6 Qe2 Nf5 Na3 b1Q Qf7 Bb7 Qe5 Qc8 d8B Kd7 Qfd5 c5 Qa2 c4 Bb2 Nd4 Ne2 c3+ Ke3 c2 Nc3 c1R Qe4 d2 Nd5 d1B Qg2 Qf5 Rf1 h1Q Bc3 Nbc6 Bb6 Ne5 Qac2 Ne2 Rg1 Bd8 Be1 Bc7 Bh4 Bb8 Qf1 Nf3 Rg2 Rg8 Qb2 Ba4 Nc2 b3 Rb1 Ba8 Na1 Qb7 Qd2 Rc7 Re1 Kd8 Qc1 Rf8 Nc3 Re8+ Ne4 Re6 Ba7 Rc4 Bd4 Re7 Bc5 Rc7 Ng5 Rb4 Ba7 Nfd4 Nf3 Rc3+ Kd2 Re3 Nh2 Rg3 Bc5 Nf3+ Ke3 Qfc8 Rd1 Qf5 Rd5 Qbc8 Re5 Be4 Bd4 Qb7 Bc3 Bd5 Be1 Bdc6 Bf2 Be4 Bg1
4n3/4Nn2/BbrPp3/QK1R1Q1p/3P1kbB/qb1pRN1r/2qP2P1/n5r1 b - - 0 1 illegal: Other
3n4/bP1Pk2N/q2rQpn1/1Rn3Np/2P3b1/RQ1B2pP/4q1bq/KBr5 b - - 0 1 illegal: No proof kernel
R1b4R/k1bQp1K1/5P1B/N1b3nP/3pPn2/1N1rP1Br/5rbp/1Q4qb b - - 0 1 illegal: No proof kernel
1K4nQ/2prNBQ1/5r2/k2P3R/NP1b3n/1b2r1P1/rqRp1pP1/B1b4r b - - 0 1 illegal: No possible last move, all moves rejected
3Kbn1R/pP1n1br1/qBr1Qk2/1P1P4/N6N/p3P2R/bbQ1p3/3rb2B b - - 0 1 illegal: No proof kernel
2nB4/3pPqkP/rq2r3/2Q1Rp2/1Rb1r2P/1Q2b1NP/BK1p4/rN2q2n b - - 0 1 illegal: Other
R3B1qB/1rP1r1b1/7R/NQ1P1pN1/1KQq4/2PpbP2/qp3b2/1knnq3 b - - 0 1 illegal: No proof kernel
4k2r/Q1p1rq1P/1bPn2Pp/3B3P/2Nqb3/R2np2Q/2RNb3/1K1Bq2b b - - 0 1 illegal: Other
4B1bk/P7/5rb1/6n1/2r1PNNK/2B2p1n/1qppP1Pn/QQRqnRb1 b - - 0 1 illegal: No proof kernel forced: bxLB
2R3BK/Pp2r2P/1b1nn3/Q1q1pNQ1/N2p1P1q/3bB1P1/qr3k2/r1R1q3 b - - 0 1 illegal: No proof kernel
5n2/QbpBPK1R/2rkP2N/q2n1n1p/3B4/P3rRp1/n3NrPr/Q1b5 b - - 0 1 legal: proof: f4 d5 c4 dxc4 h4 e5 fxe5 a5 b4 axb4 h5 Qd4 h6 Qf4 Rh2 Qxh6 Rh1 Qh2 Kf2 Kd7 Ke3 b5 Ke4 f5+ Kd5 g5 e4 b3 d4 c3 a3 c2 Nf3 b2 Qd2 g4 Qe3 b4 Qc3 g3 Ra2 b3 Bh6 c1N Bd2 f4 Ne1 f3 Nc2 f2 Ne3 Bh6 Ng4 Ra6 Bb5+ Rc6 Be3 f1R e6+ Ke7 e5 Qh5 Qe1 Nd7 Nc3 b1N Rf2 b2 Rf3 Bb7 Ne2 Nf8 Rh3 Bg5 Nh6 Na2 Qa5 Rf2 Qa7 Nd2 Rh2 b1R Rh1 Re1 Rh3 Ke8 e7 Nc4 Rh2 Nd6 Rh1 Ng6 Ke6 Nf6 d5 Nf5+ d6 Nd5 Bd4 Bc1 Rh2 Ndc3 Kf6 Kd7 Kf7 Nd5 Rh1 Qg5 Ba4 Qd2 Rh3 Qa5 Rh5 Qb5 Rh1 Nf8 Rh3 Rc3 e6+ Kc6 d7 Kd6 Rh2 Rc6 Rh3 Qa5 d8Q+ Nd7 Qg8 Nf8 Qg6 Rb6 Bd7 Rc6 Nc3 Re3 Qf6 Rg8 Rh5 Rg4 Ne2 Rh4 Bb6 Rh2 Qa1 Ng7 Bd4 Nf5 Rg5 Rd3 Rg7 Re3 Ng4 h6 Rh7 h5 Nh6
rN2Qn1n/Bpn3R1/1Pp2b2/KnP4B/R3Q1b1/2PPp2n/1b3qN1/4q2k b - - 0 2 illegal: Other
KBk5/1BP3bp/2r1RQR1/bN1pq1b1/Qrbqp1P1/1n1P1Pb1/5b2/4N3 b - - 0 1 illegal: No possible last move, all moves rejected
5rr1/2n1bPR1/np1Q2KR/1q1Pr3/1QNP2p1/b3B3/bP1B1pqp/2N2k2 b - - 0 1 illegal: No proof kernel
1Rb1q2n/p1Pb1Q1p/PB1qq3/r1N4r/1K2k2p/PBQp2P1/1n6/2N2R1r b - - 0 1 legal: proof: f4 e5 h4 exf4 d4 g5 d5 gxh4 a4 Ba3 d6 cxd6 bxa3 d5 Rh3 d4 Rh2 Nc6 Rh1 Nb8 Kd2 Ke7 c4 Kf6 e4 Ke5 c5 b5 a5 f5 g3 d5 c6 f3 c7 d3 Kc3 f2 a6 d4+ Kb4 f4 Ne2 f3 Nd2 Nc6+ Kc5 b4 Kc4 b3 Bg2 f1B Kb5 b2 Rh2 b1R+ Kc4 f2 Qe1 Nge7 Rh3 Rf8 Rh1 Ng6 Kc5 Rab8 Rh2 Qe8 Nb3 d2 Kc4 d1Q Bf3 Nh8 Bb2 Nb4 Qc3 Rb5 Nc5 Bfh3 Nc1 Rf5 Bg4 Qd2 Bd1 Nd3 Bb3 f1Q Rf2 Qfd1 Rf1 Rh5 Ra2 Ra5 Ba1 Qe3 Rb2 Kd6 e5+ Kc6 e6 Qe5 e7 Bhd7 Rh2 Nb2+ Kb4 Qe6 Rhf2 Qd2 Rf8 Qf4 Rg8 Qfd6 Rgf8 d3 Rg8 Q8f7 e8Q Qff8 Qf7 Qfe7 Bd1 Kd5 Rd8 Qe8 Ba4 Bb7 Rb8 Bbc8 Bb3+ Nc4 Qe5+ Kc6 Rf3 Bb7 Na2 Qe6e7 Bd4 Rh1 Nc1 Nb2 Rf1 Bbc8 Bf2 Qee6 Qc3 Qdd5 Na4+ Kd6 Qd2 Ke5 Bb6 Ke4 Qc3 Qdd6+ Nc5+
b1N3bk/b2PR1NB/pn4P1/2p1Qb1K/Rb4P1/2PBn3/1ppr4/2Qr1q2 b - - 0 1 illegal: No proof kernel
k4K2/Rn2BPpR/prq2Q2/N3Np1P/2B3pP/5n2/Q1nr1rP1/2b3br b - - 0 1 illegal: Other
3brn1r/1RP1Br1n/p1n1Nq1p/1P2k2P/QN3P1b/1QK1p2B/3p4/3R1r2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 Bf4 b5 Bg5 bxa4 Bc1 Bb7 g4 fxe4 Ke2 Bd5 Kd2 Be6 Ke1 Bf5 gxf5 Qc7 Ra3 Qc8 Ra1 Qd8 Kd2 Kf7 h4 Kf6 b4 e5 c4 g5 h5 d5 c5 e3+ Kd3 e2 c6 e1B b5 e4+ Kc2 e3 Qf3 g4 Rh3 a3 Qg3 a6 Qh4+ Ke5 f6 g3 f7 g2 Ra2 h6 Ra1 d3+ Kb3 d2 Be2 d1R Qg4 d4 Kc4 d3 Rf3 a2 Ba3 Be7 f8Q Nd7 Nh3 g1R Bf1 Bh4 Be7 Ba5 Qf7 d2 Na3 Nf8 Nc2 Nf6 Ng5 N6h7 Bh3 Rdf1 Rd1 a1N Nb4 Nc2 Ne6 Nd4 Kc3 Qd6 Rf6 Bd8 c7 Nc6 Qc4 Rg2 Qb3 Rg5 Qg8 Rf5 Qg4 Rb8 Qgc4 Rf3 Qa4 Rf5 Qcb3 Ra8 Rg6 Rf7 Nd4 Nb8 Bg5 Be7 Rf6 Qd8 Rb6 Nc6 Rb7 Rb8 Ne6 Qd6 Ng7 Qg6 Ne6 Re8 Qc2 Qf5 Qcb3 Bd8 Be7 Qf6 f4+
2k1n3/bp1r1PpP/1N1q1b2/B1p1R1pr/K3b1Q1/P3Qb2/B3RP2/2nn3N b - - 0 1 legal: proof: e4 d5 c4 dxc4 b4 f5 exf5 a5 g4 axb4 g5 h6 Qb3 hxg5 Qc2 Qd3 Qd1 Qd8 h4 Kd7 d4 e5 Kd2 e4 Kc2 c3 Kb3 c2 f6 e3 d5 e2 f7 e1B d6 Rh5 a3 Nh6 Qg4+ Nf5 Ne2 Bc3 Bd2 Na6 Ra2 c1N+ Ka4 b3 Ng3 b2 Bc4 Bf6 Nc3 b1B Re1 Be4 Nh1 c5 Nd5 Nc7+ Ba5 Ne8 Rae2 Ra6 Qg1 Ne3 Ba2 Nd1 Qg3 Qb6 Qg4+ Kd8 d7 Bd6 Rf1 Bf3 Rfe1 Bb8 Re5 Ba7 R1e2 Qc7 Nb6 Be4 Kb5 Qd6 Ka4 Kc7 d8Q+ Kb8 Qdd7 Bf3 Qc6 Bf5 Qce4 Bh7 Qe3 Bhe4 Na8 Rc6 Nb6 Rc7 Bb3 Rh6 h5 Rd7 Be6 Rg6 h6 Kc7 h7 Rh6 Bf5 Rh5 Be6 Kd8 Ba2 Kc7 Nc4+ Kc8 Nb6+
1BKR4/1p2p3/r1np1PqN/2P2B1R/1P1r3r/bP1n4/p1nQ2n1/1QNn1k2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 h4 g5 Bc4 gxh4 Bf1 d6 e5 Be6 b4 Bb3 e6 fxe6 axb3 e5 Bd3 e4 Bb5+ Kf7 Bf1 Ke8 Ke2 Kd7 g4 Ke6 f4 Kd5 g5 h5 c3 a5 f5 e3 Kf3 e2 Kf4 e1N g6 a4 f6 d3 Kf5 h3 g7 h4 c4+ Kd4 Ke6 d2 Qc2 Ke3 Bg2 Kf2 Nf3 h2 Qf5 d1N Rg1 h1N Qg5 a3 Nc3 h3 Nd4 a2 Bd2 h2 Be4 Rh4 Nf5 Nc2 Ne2 Nc6 Nc1 Qe8 Nh6 Ra6 Bf5 Qg6 Kd7 Rd4 Rg4 Kf1 Be3 Nhf2 Kc8 h1R Qf4 Re4 Ba7 Rd4 c5 Rh4 Qd2 Nd3 Rb1 Rb6 Bb8 Ra6 Nf7 Nh6 g8Q Bg7 Qh7 Bf8 Rg3 Ng4 Nh6 Nge3 Rg5 Ng2 Rg4 Qh5 Rg8 Bg7 Rd8 Qg6 Ng4 Bh6 Rb2 Bf4 Nh6 Na3 Rc2 Be5 Rc4 Nc2 Rc3 N3b2 Rg3 Nd3 Rg5 Bf4 Rh5 Be3 Qc3 Bd2 Qb2 Bc3 Qb1 Bb2 Qg8 Ba3 Qd5 Rdg4 Qd4 Re4 Qe3 Rd4 Qd2
1b1r1R2/2n3P1/P1Q1bp2/Bqp4K/2PQ3N/1prN1Pp1/rR1kq1r1/1B1r4 b - - 0 2 legal: proof: e4 d5 b4 dxe4 g4 h5 b5 hxg4 b6 axb6 Bh3 b5 Bf1 b4 h3 g5 Na3 g3 Nb1 Nc6 h4 g4 Ba6 Nd4 Be2 Ne6 Bf1 Ng5 hxg5 Ra3 Qf3 Ra4 Qd1 Ra8 Ke2 Kd7 a4 Kd6 c4 Ke5 f3 Kd4 d3 b5 a5 c5 g6 e5 g7 g2 Qb3 f6 Ra3 e3 Qa4 e4 Rh2 g3 Ra1 b3 Nc3 b2 Na2 b1R Bd2 b4 Qc6 b3 Nb4 Qd7 Nh3 g1R Nf4 Rc1 Ng2 Rc3 Nh4 Ne7 a6 Nd5 Rb1 Nc7 Rb2 Bd6 Bh3 Qe8 Bf5 Be6 Rh1 Rd8 Be1 Ke5 d4+ Kf4 d5 Rg2+ Kf1 Be5 d6 Rh5 d7 Bd6 Bg6 Rd5 Nf5 Rd1 Rh8 Ra1 Nh4 Ra2 Bd2 Be5 Rf8 Bd6 Ke1 Be5 Kd1 Bd6 Be1 e2+ Kd2 Be5 Bf2 e1R Nd3+ Kg5 Bf5 Rd1+ Ke2 e3 Bh7 Ra8 d8Q Rc8 Qd4 Rd8 Qb6 Qb5 Qc6 Na8 Bg6 Bb8 Be4 Nc7 Bg6 Rgg1 Be1 Rg2+ Kf1 Rgc2 Bf5 e2+ Kg2 Rcd2 Kh3 Rdc2 Bf2 e1Q Be3+ Kh5 Bh6 Rg2 Bd2 Qe2 Be1 Rc2 Bb4 Kg5 Ba5 Rc3 Nb4 Bd5 Bc2 Bg8 Qdd7 Kf4 Nd3+ Ke3 Kg4 Be6+ Kh5 Kd2 Qdd6 Rf1 Qd4 Rd1 Bb1+
2b1k1q1/1p1pq1P1/PbqB1p2/1R5n/B3N1K1/1bb2Pp1/1QP3N1/3Rr1nQ b - - 0 1 illegal: No proof kernel
3KQ1r1/n3P2p/1BpQq3/1B2nP2/N2Rpkn1/p2nPN2/1RP1r1q1/2r4b b - - 1 2 illegal: No possible last move, all moves rejected
7K/r1Q1pPQp/1nb5/P3p2b/1NR2B2/1PrBqk1P/p2r2r1/2RNbb2 b - - 0 1 illegal: No proof kernel
r3BnNb/1Rqbppp1/4B1P1/4PP1k/P3R2p/1b5n/Q1p1r1Q1/1rN4K b - - 0 1 illegal: Other
Q1nQ4/1Pr1r3/np1P1P2/1P2B3/r3b1N1/pN2pBbk/1R1pKp2/b5qR b - - 0 1 illegal: No proof kernel
3B2RK/krpQ4/1p5b/5pRP/rBPp1Q2/q3NpN1/2r1Pn1P/3b2nq b - - 0 1 illegal: No proof kernel
2b4K/Qp3p1P/bb1B1r2/3RQrrR/p1P2P1b/1PN2p1k/3qnp2/3N3B b - - 0 2 illegal: No proof kernel
q5Q1/1Rp2kpP/Qb3B1R/1bBKP2N/1qn3pp/br1p4/2PP1N2/r5b1 b - - 0 2 illegal: No proof kernel
2bbQ2R/pb4P1/P1pP4/1B2n1np/1K1b2Nn/QPpN1r2/p2R2r1/2B3k1 b - - 0 1 illegal: No proof kernel
5b2/KB1Qpqnb/P3bpk1/N1Rq1Pr1/2b1PqN1/Q3R3/3Bn2P/1r1n2b1 b - - 0 1 illegal: No possible last move
2k2K2/R2p1nRp/3P2Q1/1PbB1q2/nBrN1n1Q/Nn3b1n/rr2P2P/b5r1 b - - 0 1 illegal: No proof kernel
4K3/PN1B4/2R2ppb/r2Qp3/r1N2PP1/PQk1n1BR/1qn5/brnbnn2 b - - 0 1 illegal: Other
6R1/QrNn3r/1PbpQ1bp/q2npB2/1nq1nbPk/1R2P3/3P1BK1/q6N b - - 0 1 illegal: No proof kernel
q7/1Prpn1b1/Nk1Q3b/1BnP2qp/6b1/bbBRp2R/rb1PP1K1/N6Q b - - 0 1 illegal: Other
q1rn2B1/1kp1n3/1bP1qr2/3rB3/N1Q2P2/pbp1nK1Q/Pn1R1P1R/2Nr4 b - - 0 1 illegal: Other
2q2N2/N1RQPpK1/1r1nQr2/b5Bq/1P3rb1/b2p1PRB/3P1r1p/2b1n2k b - - 0 1 illegal: No proof kernel
2Rr1N1K/2rp1Nn1/b1B3Qp/3P1P1q/QqbpkBn1/1P2R3/5b1P/1qq4b b - - 0 1 illegal: No proof kernel
1qk1n1NB/2n2P2/2p5/2r1bRq1/N1p1rb1P/pRPQnBpr/P7/1K3b1Q b - - 0 1 illegal: No proof kernel
5r1n/2b4B/p3K1Q1/3Nb1RP/bB1p1q2/Prp1rN2/1QPPpkq1/3nR2n b - - 0 3 legal: proof: g4 h5 e4 hxg4 e5 b5 e6 fxe6 Nc3 e5 Nb1 e4 Qf3 b4 a3 Bb7 Qb3 Bc8 Qa2 b3 Bh3 bxa2 Bg2 Na6 Bf1 Nb8 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Ke5 Kh4 f4 d5 b4 c5 h3 Kg3 f5 g5 f6 e3 f7 c4 h4 e2 b5 e1R+ Ne2+ Kf2 b6 g3 h5 g4 b7 a6 Rh3 g2 Re3 g1N Bh3 g3 Re4 g2 Rh4 Bd7 Be6 Nc6+ Kf5 Nh6+ Kg6 Rb8 Re4 Na7 Bb2 Ba4 Rg4 Nb5 Rg3 Nh3 Re3 g1Q+ Rg3 Qg2 Rg5 Qc7 Bg4 e5 Kf6 e4 Bc1 e3 Ng1 Nc3 Bd1 Qf4+ Ke6 Bd6 f8Q Bc7 Qf6 Nf7 Qg6 Rhf8 Nf3 Nh8 Be2 Nd1 Bd3 Re2 Nc3 Re1 Rb1 a1B Bb2 Re2 Nb5 Re1 Bf6 Bae5 Nc3 d4 Nd5 c3 Rc1 e2 Be7 Rbe8 b8Q Rf1 Qb7 Rb8 Qb2 Rb3 Qa1 Rh1 Qf5 Ne3 Ne1 Kf1 Qh7 Nf2 Bb4 Rh3 Qb2 Nh1 Qg7 Kf2 Bh7 Rf3 Qg6 Rh3 Nf3 Rg3 Re1 Nd1 Nh2 Re3 Nf3
r2QNQ2/2pRn1pK/2kpPq1p/b4r1B/1rNn3P/1q1Pn3/2P3b1/2R1B2b b - - 0 3 legal: proof: f4 e5 b4 exf4 g3 fxg3 Nc3 a5 Nb1 axb4 h4 b5 e4 f5 Ke2 g2 Kf3 f4 Kg4 b3 Kf5 b4 a4 b2 a5 f3 d3 b3 e5 h6 Kg6 f2 a6 Nc6 a7 Bb7 Nf3 g1Q+ Bg5 Qf6+ Kh5 Nd4 Be2 f1N Ra5 Bb4 Bd2 Ne3 Nc3 b1B Rd5 b2 Qf1 Ne7 Ne4 Rf8 Be1 Ba2 Nfd2 b1R Nc4 Ba5 Ned6+ Kd8 Bg4 Rb4 Ne8 Kc8 Rd6 Bg2 e6 Kb7 Rd5 Kc6 Qf5 Qe5 Qg5 Rf5 Bd1 Nc8 Kg6 Ne7+ Kh7 Qf6 Bh5 Qf2 Rg1 Qd2 Rh1 Qc3 Rf1 Qe5 Qf6 Qb3 Qf8 Qf4 Bc3 Qg5 Rc1 Qf6 Be1 Bh1 Rb5 Bg2 Rb8 d6 Rd8 Bh1 Rd7 Qc3 Nb2 Bad5 Nc4 Bdg2 Bg4 Rc8 Bh5 Qb3 a8Q+ Kb5 Qa7 Ra8 Qb8+ Kc6 Qd8
1bn2BN1/3p1b1R/p1p5/KB1P1nkr/PP1QrQ1p/2r5/2rRP3/bqn1N3 b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 b5 h5 bxc4 h6 gxh6 Rh3 h5 Rh1 h4 a4 Ke7 d4 Kf6 Kd2 h5 Kc3 c6 g4 h3 b3 f3 Na3 h2 Bf4 h4 Bg2 f2 Nc2 f1N Bd5 Ne7 Kb4 c3 Qc1 Ne3 Nf3 Rh5 Ra2 Ba6 Qd2 Qb6+ Ka3 N3f5 Bc7 Bg7 Rb2 Bc4 Qe1 Na6 Qf1 Re8 Ng5 Nc5 Bg3 a6 Ne1 c2 Qf4 c1B Rf1 h1R Nh7+ Kg6 g5 Nd3 Rf2 Nc8 Nf6 Re4 Ng8 Rh3 Rg2 Be3 Rd2 Nc1 Be6 Bg1 Bf2 Bh2 d5 Rc3 Bc5 Bd3 Bf8 Qg1 Rg4 Bd4 Kb4 f6 Qf3 Bb8 Ka5 Rc2 b4 Ba1 Ng2 Qd1 Ne1 Rc3 Qf2 Qc2 Rf4 Qb1 Qg1 Nfe7 Qa7 f5 Qd4 Rc2 Rf2 f4 Rg2 f3 Bf5+ Kf7 Rg1 f2 Rg3 f1R g6+ Ke8 g7 Kf7 Rg6 Rf3 Rh6 Rg3 Rh7 Rge3 Be6+ Kg6 Bf5+ Kg5 Bg6 Re6 Bf5 Be4 Bg6 Rec3 Bf5 Bf3 Bd3 Nf5 Bb5 Re4 Nf6 Bg4 g8Q+ Ng7 Qf7 Be6 Ng8 Nf5 Qe8 Bf7 Qee5 Rc5 Qh2 R5c3 Qf4+
5qqN/1KnPQ1pp/1P1qnb2/p2Q2RR/2r1bk1P/q2B3p/r5P1/q1B1N3 b - - 0 1 illegal: No proof kernel
RKbkB3/R1NQqpn1/3Br3/nNp1n1b1/PPP3p1/1b3qP1/6rp/3b2Q1 b - - 0 1 illegal: No proof kernel
k3q1b1/BP1Q1rpp/2Pp1b2/3KNq1P/5b2/1Q1n1pR1/q1B3PN/2nR1b1r b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 f5 bxa4 f6 exf6 Bf4 f5 Bc1 f4 Kd2 f5 Kd3 a5 Kc4 d3 b4 d2 h4 a3 e4 a4 e5 a2 h5 a3 e6 f3 c3 f4 b5 f2 b6 f3 e7 Nc6 Nh3 Na5+ Kd5 Nb3 c4 Nh6 c5 Ng4 c6 Ne5 Qe1 d1Q+ Bd2 Qc2 Ng1 Nd3 Nh3 Nbc1 Be2 f1B Nf4 d6 Rh3 Be6+ Ke4 Qc5 Bd1 Bg8 Bc2 Qf5+ Kd4 Ra5 Ng6 Re5 Qd1 Re1 Be3 Qdc8 Nd2 Qb8 Rb1 a1Q+ Rb2 a2 Bg5 Qb1 Ne5 a1B Rg3 Qa2 Bh4 Be2 Bf6 Rh1 Nf1 Qbc8 Nh2 Bf1 Ke3 Qd8 Rb1 Bc3 Ra1 Bd2+ Kd4 Bf4 Neg4 Kf7 Ne5+ Ke6 e8Q+ Be7 Bh4 Qb8 Qd8 Bf6 Qc8+ Ke7 Qe6+ Kd8 Rb1 Nb3+ Kd5 Qc8 Ra1 Qb8 Qb1 Nbc1+ Qb3 Qba8 Qf7 Kc8 Bg5 Ne2 Rd1 Kb8 Qe6 Bf7 Bh4 Rf8 Bg5 Bg8 Bh4 Rf7 Qd7 Nec1 Bg5 Be7 Bf6 Bf8 Bd8 Be7 Ng4 Q8a4 Bc7+ Ka8 Bb8 Bf6 Ba7 Qa6 Nh2 Qc8 Rg5 Qb8 Rg3 Qe8 b7+
5nb1/2p1BrR1/2PR3n/pbrQNP1p/2P1ppq1/P1N1rQ1k/3bBK1b/8 b - - 0 1 illegal: Other
2nk4/2RB3N/pP3p1Q/P2p3K/1NrbQq2/nrp3pb/B1P3Pp/4Rq1b b - - 0 3 illegal: No proof kernel
q1kn1rRR/1P3pN1/N4P1K/b1p5/1q3P2/3rQp1b/1r2P1nR/2NB4 b - - 0 1 legal: proof: f4 g5 a4 d5 c4 a5 cxd5 b5 h4 gxh4 axb5 Bg7 b4 axb4 Bb2 Bf8 g3 Qd6 f5 e5 Bd4 Qh6 Be3 Qd6 Bf4 exf4 Nc3 f3 Nb1 Qf4 gxf4 Bd7 Kf2 Be6 Ke1 Bc8 Kf2 Kd8 d4 c5 f6 h5 b6 b3 d6 h3 Kg3 h2 Kh4 b2 Kg5 h4 d5 Ra6 Qd2 Be7 Bh3 Nh6 Bd7 Ra2 Ba4 Bh3 Na3 b1Q Nb5 Nc6 Bd1 Nf5 Nc7 Kc8 Qe3 Qb4 Na6 Rb2 Ra3 Nd8 d7+ Kb7 d6 Rf8 Qe6 Ne3 Kh6 Ng2 Qe3 Nc6 d8N+ Kc8 Ne6 Bd8 Qc1 Bc7 Qe3 Nd8 d7+ Kb7 Qd3 Be5 Ng7 Bc3 Ra1 Qe4 Rc1 Ba5 Qe3 Qb4 Rb1 Bg4 Nh3 Be6 Nf2 h3 Rf1 h1R Rg1 h2 Nd3 Bg4 Nc1 Bh3 Rf1 Rg1 Rf2 h1Q Ra1 Qh2 Ra3 Qg3 Rd3 Qg4 Rd5 Qe6 Rh5 Qc6 Rg5 Qc8 Rg3 Qa8 Rg4 Nc6 d8R Rf1 Re8 Nd8 Rg5 Kc8 Rg4 Ne1 Rh2 Ng2 Ba4 Qb3 Nh5 Qb4 Rg5 Rg8 Rg6 Rg7 Rh8 Rg8 Rg5 Rf8 Rgg8 Re1 Ng7 Rd1 Bb3 Rd6 Bd1 Rd3 b7+
2R1nq2/B4bB1/rq3PP1/2PRK1b1/2p1b1RN/5Pr1/3rB2k/Q4nqr b - - 0 1 legal: proof: b4 b5 e4 c5 h4 g5 c4 f5 exf5 gxh4 a4 d6 Na3 d5 axb5 cxb4 c5 Qd7 Nc4 dxc4 Qf3 Qd5 Qd1 Qd8 Ke2 Kd7 Kf3 e5 Ke4 h5 g4 a5 d4 a4 f6 Ke6 b6 h3 b7 h2 g5 h4 g6 b3 Bd2 b2 Bc1 b1Q+ Qd3 h3 Ra3 Be7 Bd2 Ra6 Be2 Qf8 Bc3 Nh6 Bg4+ Nf5 Rb3 a3 Be2 a2 Be1 a1Q Nf3 Ng3+ Ke3 e4 Kf4 e3 Ne5 Nf1 Bd1 e2 Nc6 Nd7 Rg1 h1B b8B h2 Qc3 Rh3 Rg4 Rg3 Ba7 Be4 Rb8 h1R Ne5 Qb6 Nf3 Qc1+ Bd2 e1R Be2 Rd1 Nh4 Kd5 Be3 Rd2 Qa1 Bb7 Re8 Ke6 Rc8 Bbd5 Rg5 Nh2 Rg4 Qg1 Nf5 Nf1 Nh4 Rd1 Bc1 Rd2 Ba3 Ne5 Bb4 Nf7 Bc3 Nd6 Bb2 Kd7 Ke5 Ne8 Ba3 Bf7 Bc1 Bd8 d5 Bc7+ d6 Bb8 Kf4 Ke6 f3 Kd5 Kg5 Ke6 d7 Bd6 d8R Bf4+ Kh5 Bg5 Rd5 Rd3 Bf4 Rd2 Bd6 Qg7 Bf8 Qg8 Rd4 Ke5 Bh6 Qf8 Bg7 Be3 Rg5+ Kf4 Rdd5 Rg4 Kh6 Kg3 Kh5 Kh2 Kh6 Qg2 Kh5 Rg3 Rg4 Bd4 Kg5 Qg1 Kf4 Be3+ Ke5 Bh6 Ng2 Bg5 Nh4
2Br4/KR4Rn/1P1r4/Q2pqNb1/2PB2b1/1PP2n2/B1n3n1/2rRrkr1 b - - 0 1 legal: proof: f4 e5 a4 exf4 d3 b5 axb5 c5 Bd2 c4 dxc4 Nh6 Bc1 Ng8 g4 fxg3 Bf4 h5 Nd2 h4 Ne4 g2 Ng3 hxg3 Bd2 Bc5 Bc1 Bf8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 h4 Kg4 b3 f5 h5 a5 b6 d5 c3 g5 h6 f4 e4+ f3 h7 a4 e5 a3 e6 a2 e7 Bh6 Kc5 Na6+ Kb5 Qd6 e8B Nb4 Qd3 f2 Bd2 Qe5 Bf7 Nc2 Qe3 Nf6 Rh2 Rd8 h8R Nh7 Rf8 Rd6 Nh3 g1R Bd3 f1N Qc5 Kf3 Nf4 g2 Rd1 a1R Ng6 g4 Be3 g3 Ne7 Bg5 Bd4 Bg4 Nf5 Rc1 Be6 Nfe3 Rb8 Kf2 Bc8 Re1 Rb7 Rb8 Rh5 g1N Ka6 g2 Ka7 Nf3 Qa5 g1R Rh6 Kg2 Rg6 Kf2 Be4 Kf1 Rg8 Ng2 Rgg7 Nce3 Bb1 Nc2 Bd7 Rh8 Bc8 Rhd8 Ba2
1n2R1qq/1B6/n1NK1b1r/nk3rRq/p1PB4/r3R1QP/rP3P1r/1B6 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 h5 g4 hxg4 d5 Bb7 Nc3 c5 Nce2 Bc6 Nd4 cxd4 dxc6 Rh6 Nf3 Rh3 Ng1 Rh8 Kd2 a5 h3 d5 c7 Kd7 b6 Kc6 c8B e5 b7 g5 Rb1 d3 Kc3 d2 Ra1 e3 Qe2 d1Q Qe1 e2 Bf4 d4+ Kc4 d3 Nf3 d2 Rh2 e4 Ra3 g3 Bg4 e3 Rd3 g2 Rd5 g1Q Rf5 Bg7 Bg3 Rh6 Re5 Bf6 Re4 Ne7 Rh1 Qh8 Be6 g4 Bc7 g3 Rg4 g2 Kb3 Kb5 Rf4 Nec6 Rg4 a4+ Ka3 Na5 Bb6 Ra6 Bc5 Rc6 Bd4 Rc5 Bg8 Rf5 Rg3 Qa1+ Ba2 d1R Ne5 Rd3+ Qc3 e1R Nc6 e2 Rg5 Qd1 Bb1 Rf3 Ba7 Qd5 Bd4 Qdg8 Ba2 Ra1 Qe3 Qh2 Qc3 g1R Bg2 Rgb1 Re1 Qe5 Bh1 Rg3 Be4 Rg2 Qg3 Rh2 Bg2 Qee8 Be4 Qh5 Bh1 Ka6 Kb4 Rc1 Bb1 Ra2 Be4 Rd1 Bd5 Rd3 Kc5 Rda3 Kd6 Kb5 Rd1 e1N Rd3 Ng2 Re3 Nf4 Bf3 Nd5 Be4 Na6 b8R+ Nb6 Re8 Nd7 Nd8 Qhf7 Bb7 Qh5 Nc6 Ndb8 c4+
BNb4n/Pbpnq3/1n3QPR/4n2P/8/1KP3n1/rB3nq1/kn2RBR1 b - - 0 1 legal: proof: e4 e5 g4 a5 b4 axb4 d4 exd4 e5 f6 Nc3 f5 Ne4 fxe4 Bd3 h5 Bf4 g5 Kf1 b5 Bg3 h4 Nf3 Rh5 gxh5 g4 Bf4 g3 Ng1 g2+ Ke1 Bh6 Bc1 Bf4 Bf1 Bg3 hxg3 Ra6 Bf4 Rh6 Bc1 Rh8 Kd2 Kf7 f4 Ke6 a4 Kd5 e6 h3 c3 b3 f5 h2 a5 b4 e7 b2 Kc2 b1B+ Kb3 d3 e8B e3 a6 d2 g4 e2 g5 e1N f6 Be4 g6 Qe7 f7 Nd3 f8R Ne5 Rf3 Nh6 Rg3 Nhf7 Qe2 d1N Rg5 Nb2 Bd2 Nc4 Be3 Nb6 Ka2 b3+ Kb2 d6 Bd2 N8d7 Nh3 g1Q Re1 Qg2 Ka3 b2 Qf3 b1N+ Kb3 Kc5 Bf4 d5 Rf5 d4 Nf2 d3 Ng4 d2 Rg1 d1N Bc1 h1N Nf6 Ng3 Bb2 Nf2 a7 Beb7 Rf4 Rf8 Rfe4 Nh8 Qf5 Nb8 Bc6 Rd8 Qf4 Rd2 Bd5 Re2 Nd7+ Kb5 Qf6 Ka5 Nc5 N8d7 Na6 Kb5 Nb8 Ka5 Ba3 Ra2 R4e2 Ba6 Ba8 Bab7 Bb2 Kb5 Kc2 Ka4 Rd2 Nc5 Rd8 Ncd7 Kc1 Kb3 Rf8 Qf3 Rf7 Qg2 Rh7 Ra6 Rh6 Ka2 Kc2 Ra5 Bc1 Ka1 Kb3 Ra2 Bb2+
R6b/4q1p1/N5KP/R1r3PR/nb5q/nk2npr1/3bPN1P/2QN2qB b - - 0 1 illegal: Other
bB1b3B/4bp2/K1n1p1Pr/2Pn2Nk/4NB1P/2r4n/QP2NR1q/2r4n b - - 0 1 legal: proof: g4 c5 e4 h5 a4 b5 axb5 d5 d4 g6 f4 Qd6 f5 Qd7 Ra4 dxe4 d5 Qd8 Rd4 cxd4 Bh3 Nc6 fxg6 Nb8 g5 Rh6 Be6 Rh8 Bg4 hxg4 Ke2 a5 c4 a4 h4 g3 b6 e6 g7 d3+ Ke3 d2 Kd4 g2 b7 e3 d6 a3 Kc5 a2 Kb5 a1R c5 e2 g6 e1B Qh5 d1N Qf3 Nf6 g8N Rh6 Qd5 Be7 d7+ Kf8 Qf5 Kg7 Rh3 Ba5 Nc3 Nf2 Qf3 Nh1 Nce2 Qc7 d8B Nc6 b8B Nd5 Qa3 Qh2 Bcf4 Rc1 Nf6 Bb7 Nf3 g1N Qa2 Ra7 Ng5 Ba8 Re3 Nh3 Nfe4 Rb7+ Ka6 Rb3 Bdc7 Rbc3 Rf3 Bb6 Bcd6 Bbd8 Bdc7 Rh7 Ba5 Kh6 Rf2 Kh5 Bac7 Rh8 Bce5 Rh6 Bh8
1R1R1k1q/N1nqbrn1/2Q2B1p/5P1r/7p/1b3P1P/N3PRK1/b2rNr2 b - - 0 1 illegal: No possible last move, all moves rejected
1N1B1N2/5RRb/r2Np3/1PrbPQ2/Pb5P/1R1K1b2/1p3k2/q1r2rnb b - - 0 1 legal: proof: c4 a5 f4 g5 b4 c5 d4 cxd4 g4 b5 Bh3 h5 fxg5 Nc6 g6 Na7 g5 axb4 Bd2 b3 Bg4 b4 Bc1 Nb5 cxb5 hxg4 Kd2 f5 a4 d5 e4 Kd7 h4 Ke6 g7 Ke5 g6 Kf4 e5 Kg3 Qe2 b2 Rh2 b3 Nh3 d3 Ng1 d4 Qe4 f4 Ra3 e6 Re2 f3 Qd5 f2 Qc5 f1R Nf3 Nf6 g8N Ra6 g7 Bb7 Nh2 Bh1 Nf3 Nd5 Qc3 Bb4 Ra2 Nf4 Re3 Nh3 Ra1 Kf2 Ng5 g3 Nf3 g2 Nf6 g1R Na3 b1B g8R b2 Nc4 Qa5 Rg6 Rc8 Rg7 Rc5 Nd6 Ba2 Ng5 Bad5 Ngh7 Qc7 Re1 Qd8 Nf8 Qa8 Kd1 d2 Kc2 d1B+ Kd3 Bd1f3 Ra3 Qd8 Rb3 Qc8 Kd2 d3 N6d7 Bfe4 Nb8 Bh7 Kd1 Qd7 Bg5 d2 Bd8 Qf7 Qc1 Qf5 Qc4 Qb1+ Qc1 Qa2 Qb1 Qa1 Rf7+ Kg2 Ke2 d1B+ Ke3 B1f3 Qf5 Kg3 Kd3 Kf2 Re3 Rfc1 Re4 Rgf1 Rg4 Ng1 Rgg7
2k5/R1r1P2b/3BrPnQ/p1P5/2nN2b1/pp2P1B1/B2NN2q/K3n1rb b - - 0 1 legal: proof: b4 b5 g4 c5 a4 bxa4 h4 e5 d4 g5 dxe5 f5 b5 Be7 Ra3 fxg4 Ra2 g3 Rb2 g4 Rb4 Bg5 hxg5 cxb4 Kd2 a5 f4 h5 c4 d5 Kc2 Kd7 Kb2 g2 e3 d4 g6 a3+ Ka1 b3 c5 h4 b6 d3 b7 g3 f5 d2 f6 h3 g7 h2 Be2 Ne7 g8N Ra6 Qf1 d1B Qe1 Bc2 Bb2 Bh7 Bd3 Qc7 Nh6 Ng6 Nf5 Nc6 Ne2 g1R b8B g2 e6+ Kd8 Nd2 Nce5 Bb1 Nc4 e7+ Kd7 Nfd4 Re6 Ba2 Qd6 Ba7 Rd8 Bc3 Kc7 Qd1 Rd7 Bb8+ Kb7 Qc1 Rc7 Qd1 Bd7 Qb1 Kc8 Bb2 Rc1 Rd1 h1B Bc3 Qh2 Bb2 Rcc6 Bg3 g1N Bd6 Rc7 Bg3 Rc3 Qe4 Rc2 Qf4 Nf3 Qh6 Rc1+ Nb1 Re5 Nb5 Bg4 Rd7 Rc6 Ra7 Ree6 Bbe5 Rc7 Nbd4 Rg1 Bd6 Ne1 Nd2
B1b3K1/2r2P2/3n2kr/3BP1bp/1n5q/bP1p2q1/R1P1RQp1/1RB1N1r1 b - - 0 1 legal: proof: g4 e5 d4 exd4 h4 f5 a4 g5 Ra2 b5 axb5 fxg4 hxg5 c6 Ra1 c5 Nd2 d3 Ndf3 Qe7 Nd4 cxd4 Rh5 Qf6 Rh1 Qd8 Kd2 Kf7 f4 h5 e4 a5 b6 d5 f5 g3 f6 g2 b7 a4 b3 a3 Ra2 Nc6 b8R Nh6 Rb4 Ra7 Nf3 Kg6 f7 Rc7 Ne1 Nf5 Qf3 Rh6 Qf2 Nd6 e5 Be7 Ra4 Nb4 Be2 Bf6 Bf3 Qe7 Rh4 Qd8 Re4 Qg8 Rb2 a2 Rb1 a1B Re2 Bb2 Ra2 Ba3 Be4+ Kg7 g6 Bg5+ Kd1 d2 Bf3 Kh8 g7+ Kh7 Be4+ Bf5 Bf3 Kg6 Be4 Qd8 g8B Qf6 Bf3 Bc8 Bh7+ Kg7 Bf5 Qe7 Bd7 Kg6 Be6 Qd8 Re4 Qf6 Ke2 d1R Re3 Qf4 Re4 Qh4 Re3 Bf6 Re4 d3+ Ke3 d2 Kd4 Qg3 Re2 Bd8 Ke3 Bg5+ Kd4 Rd7 Kc5 d4 Ba8 d3 Bed5 Re7 Nf3 Rg1 Ne1 d1Q Kb6 Bd7 Kc7 Bc8+ Kd8 Qh4 Re3 Qf3 Re4 Nb5 Re2 Rc7+ Ke8 Qfg3 Kf8 Nd6 Kg8
NQ2K3/n2Nn2P/4pBB1/1q6/1r2brp1/1q1q2B1/PkP2Pnp/1r4NR b - - 0 1 illegal: No proof kernel
2NQ2R1/1k1p1Bp1/1P1q1r1N/2R1r2q/1P4bp/1r2qr1P/2K3P1/1n1NR1b1 b - - 0 1 legal: proof: d4 a5 f4 b5 a4 e5 axb5 exf4 Be3 c5 Bc1 cxd4 b6 Be7 b4 Nc6 Ba3 Bc5 b5 Bf8 Bb4 axb4 c3 b3 Ra5 Qe7 Ra1 Nb4 cxb4 Qd8 Kd2 f5 e4 h5 b7 h4 b8N b2 h3 f3 e5 f2 b6 f4 e6 d3 e7 f3 Ne2 Nf6 Qc2 Ra5 Qc3 Nd5 Qd4 Ba6 Qf6 Nc3 Ng1 Re5 Qe6 Rh6 Rh2 Qc7 Qa2 Rf6 Qa4 Qd6 Nc6 Bb7 Be2 f1Q Na7 f2 Rh1 Bf3 Nc8 Bg4 Nf3 Qg1 Qa8 f1R Nh2 R1f3 Ra5 Qgd4 Rc5 Qf2 Na3 b1R Re1 Rb3 Nb5 Nb1+ Kc1 d2+ Kc2 Qe3 Nc3 Ra3 Bc4 d1Q+ Kb2 Q1d5 Kc2 Rb3 Nd1 Qf7 Nf1 Qh5 Ng3 Re4 Nf5 Re5 Bd3 Kf7 Bf1 Ke6 e8R+ Be7 Rg8 Bf8 Rc6 Kd5 Nh6 Be7 Qb8 Bf8 Rc3 Be7 Bc4+ Kc6 Qa7 Bf8 Qa5 Kb7 Bf7 Qc7 Rc6 Bc5 Qa2 Bd4 Rc5 Qd6 Qa1 Qf4 Qc3 Bg1 Qd4 Qe3 Qe4+ Rd5 Qe8 Re5 Qd8
2qr2B1/2rBr3/4P1P1/1bp3pQ/2rp2K1/1PR1BR1n/P1r4R/b2rk2N b - - 0 1 legal: proof: d4 a5 f4 g5 b4 axb4 Nd2 gxf4 Ndf3 e5 dxe5 b5 Ba3 b3 Bc1 b2 Nd2 b1R g4 h6 g5 b4 g6 b3 Bb2 Na6 Ndf3 Nc5 Bc1 b2 Ng5 Nb3 cxb3 hxg5 Kf2 Ke7 Kf3 Ke6 h4 Kf5 e6 d5 e3 c5 e7 Ba6 e8B Bg7 h5 Bb5 h6 Ra4 h7 Ne7 Rh2 Rc4 Qd4 Qc8 Bd2 Re1 Bc1 b1R Bc6 Rb2 Rb1 Rd8 h8R Rbc2 Qd2 Ba1 R2h3 d4 R3h5 Nd5 Ne2 f6 Kf2 Kg4 e4 f3 e5 f5 Rh3 f4 Ng3 Re4 Nh1 Re3 Kg1 f2+ Kh2 f3 Qd1 Nf4 Rb2 Ree2 Be3 Re1 Be2 f1R Rf8 Rg1 Rg3+ Kh4 Rf5 f2 Bd7 Nh3 Rff3 Rgf1 Bd3 Rg1 Qe2 f1R Be4 Rd1 Bd5 Rfe1 Bg8 Rgf1 Rf8 Rf7 e6 Re7 Rf7 Rf1 Rf8 Rff7 Kg2 Rg7 Kf3 Rcd2 Rc2 Rh7 Rc3 Rc2 Rg2 Rhg7 Rh2 Rgf7+ Ke4 Rh7 Kf5 Rhg7 Nf2 Kg3 Qh5 Rh7 Rh1 Kg2 Rh2+ Kf1 Kg4 Ke1 Rf3 Rhf7 Nh1 Rg7 Bc6 Rc7 Be8 Rge7 Bd7
Q2Kb1R1/1Bp1np1R/pb1n2n1/4Pn1b/1P1q3P/1B4bN/2R2P2/1k2q1B1 b - - 0 1 legal: proof: d4 d5 c4 dxc4 a4 e5 d5 h5 g3 b5 Nc3 bxa4 Nb5 h4 Nd4 exd4 Kd2 g5 Ke1 a6 Nf3 g4 Ng1 Ra7 Bg2 Rb7 Bf1 Rb3 Kd2 h3 Ke1 Rh4 gxh4 g3 Ra2 g2 Ra1 Rg3 hxg3 Bc5 Kd2 Ba3 Ke1 Bf8 Kd2 Ke7 b4 Kd6 e4 Ke5 g4 c3+ Kd3 h2 Kc4 a3 d6 a2 Kc5 c2 g5 d3 g6 d2 g7 Ne7 g8B Nbc6 d7 Nf5+ Kc4 Nd6+ Kc5 Ne7 Qg4 d1B Qg6 Bh5 Nh3 g1Q Bg2 Qe1 Rg1 h1N Bh7 Ng3 Qg8 Ngf5 Bd2 Bb7 Rc1 a1B Bf3 Bc6 Rg7 Bb5 Bg6 Bc6 Rh7 Bh6 Bg2 Bf4 Qe8 Bg3 Bf4+ Ke6 e5 Ba4 Rd1 c1N Bb7 Ne2 Rc1 Bb2 Rc2 Bc6 Bd2 Nf4 Be3 Ng7 Be4 Ng6 Bd5+ Kf5 Bb3 Ke4 Bf4 Kd3 Qg8 Ngf5 Qe8 Qc8 d8R Ba4 Qc6 Qd7 Rg8 Qd8 Qb6 Be8 Qa7 Nec8 Qa8 Bd4+ Kd5 Bb6 Rc6 Ba5 Kc5 Kc3 Kd5+ Kb2 Rc2+ Ka1 Kc5 Kb1 Kd5 Ba4 Kc5 Bb6+ Kd5 Nb5+ Kc6 Qd4 Bd5 Bh2 Kd7 Nbd6+ Kd8 Be8 Bb3 Nce7 Bc1 Bf4 Bd2 Bg5 Bf4 Bh6 Bh2 Bf4 Bg1 Bh2 Qb8 Bg3 Qa8
qB4q1/rP2kBb1/p1Bp2b1/p5R1/PnR1p2r/8/P3PN2/2QnKR1r b - - 0 1 illegal: No proof kernel
1R1k2b1/1K1PrR2/1bnpPQ1N/1p2p2r/1p2Pp1R/4B1b1/1b3P1N/q3N3 b - - 0 1 illegal: No possible last move, all moves rejected
2b1Q2k/2Kn1qBP/8/RP1b1rbR/1qnB1Rqb/2P3p1/5rP1/N1q2B1q b - - 0 1 illegal: No possible last move, all moves rejected
1r1R2q1/1b3r2/rr1b1n1b/B2P1Pkb/3Q2b1/2pPK1B1/N1P1R3/bn2RB2 b - - 0 1 legal: proof: e4 a5 g4 h5 b4 axb4 g5 d5 exd5 h4 Nc3 f6 Ne4 fxg5 Ng3 hxg3 Bd3 g4 Bc4 Ra5 Bf1 Ra8 Ke2 Kf7 h4 Kf6 f4 c5 h5 e5 h6 g5 h7 b5 Nf3 c4 Rh3 g2 Bb2 g1B Bc1 b3 Ba3 g3 Rb1 e4 Rh4 e3 Qe1 b4 Rh1 g4 Qc1 g2 Ne1 b2 Qd1 g3 Rh4 b3 Rh2 Bg4+ Nf3 Nc6 f5 Bh6 Rh5 Ra6 Rh1 Ne5 Bb4 Bh2 Qc1 g1R Bh3 g2 Ra1 b1B Ba5 b2 Qf1 Qc8 Ke1 e2 Kf2 e1R Nh4 Kg5 Qe2 Nf6 Qe4 Qg8 Qd4 Nf3 Ng6 Bd6 Rh2 Re7 Ne5 Rf7 Nc6 Re1 Nb4 Re6 Qe5 Rb6 Ke3 g1B+ Rf2 Bh2 Re2 Ra6 Qe4 Bde5 Bf1 Reb6 Qd4 Bd6 Nd3 Bhe5 Nc1 Qg7 Bc3 Rhb8 h8B Qg8 Ba5 Ng1 Rg2 Ne2 Rf2 Nc3 a4 Ba2 Rg2 b1B Re2 Bb3 d3 B1a2 Bg7 Nb1 Bf8 Ba3 Be7 c3 Bd6 Bb2 Bc7 Bc4 Bd6 Bab3 Na2 Bb5 Bc7 Bc6 Bd6 Bh2 Bc7 Bb7 Bg3 Na3 Rae1 Ba1 Bb4 Nb1 a5 Raa8 a6 Ba4 a7 Be8 Bf2 Bd6 Bg3 Rc7 Ba5 Beh5 Qb4 Rf7 Qe4 Rc8 Qd4 Rab8 a8R Rcc6 Rd2 Ra6 Rde2 Rcb6 Ra7 Bc6 Rd7 Bb7 Rd8
3BBrbQ/2q2nb1/3bpqpn/N1N1PP1N/P4PR1/q1q4r/3BK1k1/6q1 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 c5 gxf5 cxd4 Ra3 h6 Rg3 h5 Rg4 hxg4 f4 d5 h4 Kd7 e4 Kd6 c4 b5 h5 d3 h6 d4 h7 g6 Kd2 b3 Bh3 g3 Ke1 d2+ Kf1 d3 Nf3 b4 Bg2 b2 Rg1 b3 Nc3 b1Q Ne1 b2 Na2 Qc7 Qb3 d1Q Be3 d2 Bh3 g2+ Kf2 Qdc1 Nc3 d1Q Qb5 Qa1 Bd2 b1Q Qe8 Qd3 Ne2 Qdc3 Nd3 Qc1a3 Nc5 Bg7 Ng3 Nd7 Nh5 Nh6 Bg4 Rb8 Bf3 Ne5 Qf8 Qdc1 Ke2 Be6 Qe8 Rf8 h8B Rb3 Qc8 Nef7 Qa8 Be5 Bf6 Bd5 Bh4 Bg7 Qb8 Qf6 e5+ Kc6 Be4 Rh3 Qc8 Qa1c3 Bd3 Be6 Be4+ Kb6 Bc6 Qb1 Be8 Bd5 Nd7+ Kc6 c5 Bb3 Qd8 Kd5 c6 Ke4 Qa8 Nh8 Qc8 Bg8 Bg5 e6 Qb8 Qcd8 c7 N8f7 c8N Qdc7 Ne7 Qbb6 Nc6 Qbc5 Rc1 g1B Na5 Q5b6 Qc8 Bc5 Rg1 Bd6 Rg4 Qbc5 Kd1 Qf2 Nc5+ Kf3 Qb8 Qg3 Qd8 Kg2 Ke2 Bh8 Qc8 Bg7 Bh4 Qfe7 Nc6 Kh2 Nb3 Bh7 Qb8 Rg8 Bd7 Qg1 Nca5 Qed8 Be7 Rh8 Nc5 Kh1 Bf8 Qf6 Be7 Rg8 Qb4 Ra8 Qb8 Kh2 Qg8 Rf8 Qh8 Bg8 Bd8 Kh1 Be8 Kh2 Ng3 Kg2 Nh5+
N1q5/p1R1n1bq/Nr3n2/2N3P1/1Q1Br2n/b1R2qpR/P3P1Pk/b2Kb3 b - - 0 2 illegal: No possible last move
2qRknnq/2q2n2/rNP1b1Pp/1bBNB2P/b1B5/3K1p2/4QPN1/6br b - - 1 2 legal: proof: e4 b5 b4 c5 h4 d5 h5 dxe4 Rh4 g5 a4 cxb4 axb5 gxh4 Ra3 Qa5 Rh3 Qc7 Rh1 Qd8 Ke2 e5 c4 a5 g4 f5 d4 b3 b6 h6 c5 h3 b7 b2 d5 f4 d6 h2 g5 a4 g6 e3 Qd4 e4 Nf3 a3 Nc3 b1B Nb5 a2 Ba3 a1Q Qa4 Be6 Bb2 Qc7 Be5 Nd7 b8B Bc2 Na3 Ra6 Qc4 Ba4 Rg1 h1B Rg2 Qb2+ Ke1 e2 Nd4 f3 Rh2 Bg2 c6 Be7 Qa2 Nf8 Rh1 Qa1+ Kd2 e1N Qc2 Nd3 Ne2 Qd4 Nc3 e3+ Kd1 e2+ Kd2 Bh4 Nc4 Bg3 Nd5 Bh2 Ncb6 Bg1 Ba7 Qc3+ Ke3 e1Q+ Qe2 Rh7 Rh4 Re7 Rd4 Qc8 Ke4 Qa5 Ke3 Qa1 d7+ Kd8 Nc4 Qac7 Bc5 Re8 Ncb6 Qc3 Bg3 Ne5+ Ke4 Nf7 Be5 Qb2 Kd3 Bgh3 Ne3 Qa1 Ng2 Qb2 Rd6 Ke7 d8N Bc4+ Ke4 Bcb5 Ne6 Bg4 Nef4 Be6 Ke3 Rd8 Nfd5+ Ke8 Qd1 Rd7 Bc4 Re7 Qe2 Rd7 Bf4 Qh8 Be5 Rd8 Ndf4 Rd7 Rd2 Rd4 Nfd5 Rh4 Rd4 Rh2 Kd3 Rh1 Ne7 Nd8 Rd7 Nf7 Ned5 Q7d8 Rd6 Qdc7 Rd8+
2br3q/2BN3n/QP1r1R2/1pRN4/1P3qRq/N1K1bb2/1pP2P1k/3qr1n1 b - - 0 1 illegal: No proof kernel
BRR1k1Nn/rP1q3p/pRn2K2/P2b3r/3P1Q1N/2r2b1r/P6q/4bN1n b - - 0 1 illegal: Other
q4bKQ/1P1b1p1R/5b2/1qBNrP1N/pb1r2PR/qN1n2P1/r1n4R/4k3 b - - 0 1 legal: proof: c4 b5 a4 bxa4 d4 g5 e3 d5 h3 g4 hxg4 e6 Be2 Bb7 Bf3 dxc4 d5 Ba6 d6 Bc8 Bd5 exd5 Kd2 a3 Kc3 Kd7 Kd4 Ke6 b4 c5+ Kc3 Ke5 f4+ Ke4 d7 a5 g3 h5 b5 a2 b6 d4+ Kc2 h4 b7 c3 Kb3 c2 Kc4 h3 Qd2 h2 Ba3 c1Q+ Qc3 d3 Bb2 d2 Nh3 Kf3 Kd5 Ke2 e4 d1R+ Qd4 c4 e5 c3 e6 c2 e7 Na6 e8N Nb4+ Ke5 Nf6 Qd6 Ne4 Qf6 Nf2 Bd4 Rh5+ Ng5 Qb2 Ng7 c1B Nd2 Qb1 Be3 Ba3 Bc5 Qd3 Qh6 Qb5 Nb3 Ra6 Rb1 a1B+ Rb2+ Rd2 Kf5 a4 Ke5 Rd6 Qh8 Qda5 Kf5 Qa8 Ke5 Rd3 Kf6 Rd5 N5e6 Rd6 Rc1 h1Q Rd1 Rdd5 Nc7 Qf1 Rb1 Qc1 f5 Rh2 Kg5 Rg2 Kh6 Kf1 Ra2 Bf6 Kh7 Re5 Kg8 Ke2 Rc2 Qb2 Rh1 Qc1 Rc4 Ra2 Rf4 Nc2 Rh7 Bb4 Nh5 Qa3 Rd4 Rg1 Rd1 Rh1 d8R Rf1 R8d3 Bd7 Nd5 Rg1 Ra1 Rd1 Rf3 Rd3 Rh1 Rd4 Rh4 Nd3 Rf2+ Ke1 Rfh2
1Bbrq2q/p2q3N/kpqnN1B1/P5rr/P7/bN5n/P2n1PQK/RB6 b - - 0 1 illegal: Other
RNbQn3/2p1K1pr/P6P/q1R3B1/3knbN1/2R3P1/1Pr1nn1r/2rN1r2 b - - 0 1 illegal: No proof kernel
3rRnrR/3k1q2/2p2P2/3r1PR1/b2B1prn/1P2NP1q/NK3Q1N/2n1n1b1 b - - 0 1 illegal: Other
2b2B2/2q1RR2/1p1b3K/1P2PqNP/q2r2rP/p2nr3/1n2NQR1/N2rk2q b - - 0 1 illegal: No proof kernel
1b1n3K/2n5/1p2q2N/1qp1P1RP/R1qB4/Qbnn1N1r/NPr1q2P/1k5R b - - 0 1 illegal: No proof kernel
4knK1/1b3Rpn/bPQ2R1P/1n1B1P1p/b5n1/2r2r2/N1qNqbP1/2NR4 b - - 0 1 illegal: No proof kernel
b1BQRb2/bpb3p1/q1rr2n1/6B1/3rr1q1/PR4P1/1P3Pb1/NK1R1B1k b - - 0 1 illegal: Other
1rR1B3/p2Qp2R/P1p5/rN1PBb2/2Kn1Rb1/1n3r2/qbP1Pn1B/4qk2 b - - 2 3 legal: proof: g4 f5 b4 fxg4 b5 h5 Na3 c6 Nc4 g3 Ne5 Qb6 Ng4 hxg4 bxc6 dxc6 Nf3 Qc7 Ng1 Qd8 h4 Kf7 d4 Kg6 Kd2 Kh5 Kd3 g5 f4 b5 a4 g2 f5 b4 a5 g3 a6 Kg4 h5 b3 h6 b2 f6 b1B f7 Bf5+ Kc4 Ba2+ Kb4 Nd7 h7 Nh6 Rh2 Bae6 d5 Rb8+ Kc3 Qa5+ Kc4 Bg7 f8R Nc5 Rh5 Bb2 Bf4 Nb3 Be5 Qa2 Rd8 Rf8 Nh3 g1Q h8B g2 Bc3 Kg3 Qb1 g4 Ng5 Kf2 Nf7 g3 Rc8 Ng4 Nd6 Qh1 Rh4 g1N Bce5 g2 Rh7 Nf3 Nb5 g1R Bh3 Nfd4 Bh2 Rg3 Be5 Qe1 Qc1 Rf3 Qh6 Bd7 Qd6 Re8 Nc7 Rb5 Rd1 Bde6 Qd7 Ra5 Nb5 Rg8 Rc7 Rb8 Rc8 Nh6 Bg4 Kf1 Bh5 Ng4 Be8 Nf2 Rd3 Bg4 Re3 Bef5 Re4 Qd2 Rf4 Qd1 Qd8 Qe1 Qd7
1q4r1/3p1p2/bN2P3/1RQK4/1PBP1P1r/4RBB1/n1Rp1q2/q2kbnrn b - - 0 2 legal: proof: b4 g5 a3 b5 Bb2 c5 Bc1 cxb4 Bb2 b3 Bc1 b4 axb4 Qb6 Ra3 Qa5 Ra1 Qd8 h4 gxh4 Nc3 e6 Nd5 e5 d4 e4 Nf4 Bh6 Nd3 exd3 Bf4 Bg7 Bc1 Bf8 Kd2 Ke7 Ke3 Kf6 Ke4 h5 f4 a5 g4 b2 c4 b1R e3 h3 c5 h4 c6 h2 c7 h3 Qe2 a4 Qb2 a3 Qd2 a2 Bg2 Ba6 c8R Be7 Rc2 Nc6 Kd5 Na7 e4 Rh4 Rc4 Qb8 Qc3 Nh6 Bf3 Nb5 Bd2 Nf5 Be1 d2 Ne2 Ng3 e5+ Kg6 e6 Nf1 g5 Kf5 Rg1 h1Q g6 h2 g7 Qg2 g8B h1N Bg3 Qf2 Qc1 Bg5 Nc3 Bd8 Na4 Nc3+ Kc5 Bg5 Nb6 Bf6 Rg2 Bd8 Rh2 Bg5 Rh3 Bf6 Bg4+ Ke4 Bf3+ Ke3 Bh7 Bg5 Qc2 Re1 Rc1 a1Q Bd3 Na2 Kd5 Rd1 Rc5 Bf6 Bf5 Bg5 Rb5 Bf6 B3e4 Ke2 Qc5 Re1 Rc3 Kd1 Rc2 Rh7 Qe7 Qb7+ Rc6 Bh4 Bh2 Qe2 Bd3 Nfg3 Bg4 Rg8 Qd6 Qb8 Rc2 Rg1 Qc5 Nf1 Bc4 Be1 Re3 Rhh8 Bg3 Rh4 Bh3 Qf2 Bg2 Rh7 Be4 Rh4 Bf3+
1n5R/b1qN1b2/p1rR4/B1pb3p/PPr1Pb2/2nk2B1/Q3BP1R/3rb1K1 b - - 0 1 illegal: No proof kernel
2R4r/2nPqk2/1pB5/4R1bR/Q2pbBp1/rP6/1n2PKPr/1rbB2nN b - - 0 2 illegal: No proof kernel forced: bxLB
7K/2b1p3/1p1Q1P2/4B2b/NPnnPNqp/1P2NkbB/3rrb1B/2nR2r1 b - - 0 2 legal: proof: c4 d5 h4 dxc4 e4 f5 Rh3 g5 Re3 gxh4 b3 Qd3 b4 Qb3 axb3 f4 Bd3 fxe3 Qg4 Nc6 Kd1 Rb8 Na3 Na5 Nh3 Bd7 Bb2 Nh6 Ke2 Kf7 Rh1 Rc8 Bc1 Nc6 Ng1 Ng8 Ke1 Ke8 Nb1 Ra8 Qd1 Nb8 Bf1 Bc8 Ke2 Kd7 Kf3 Ke6 Kg4 Ke5+ Kh5 Kf4 d4 a5 g4 c5 g5 h3 f3 c3 d5 a4 d6 c2 d7 a3 d8B c4 g6 c3 g7 a2 Qd7 a1R Bb5 b6 Ba6 h2 Bb2 c1B Nd2 c2 Ba3 e2 Qe6 e1B Nf1 Nc6 Qd5 Nh6 g8N Bf2 Qc5 Ne5 Qc3 Bg7 Qc7 Nf5 Ne3 Nd4 Bf1 h6 Qc5 Nc4 Kg6 h5 Nf6 h4 Bb2 Bg4 Bh3 R8a2 Nd7 Be5 Bc7 Rd8 Kh7 Bh5 Qd6 Bd2 Bb8 c1N Nc5 Bde1 Na4 Rb1 Ba1 Re2 Bc3 Kg3 f4 Ra1 f5 Bf4 Qc5 Bc7 f6 Kf4 Qd5 Bg3 Qc6 Bef2 Kg7 Rd7 Kh8 Rd5 Bf5 Rd6 Nh3+ Kf3 Rd1 h1Q Nf4 Qh3 Bc8 Rd5 Qd6 Qg4 Be6 Nc2 Be5 Rdd2 Bf5 Nd4 Bc8 Re1 Be6 Raa2 Bc8 Rg1 Bd7 Re2 Bc8 Rad2 Bf5 Qg5 Bh3 Qg4 Ng6 Nb2 Qc5 Bf4 Bd6 Bd8 Qc6 Bh2 Bf4 Nc4 Bbe5 Bc7 Qe6 Rg3 Qd6 Rg1 Bg3 Be1 Bf2 Bf4 Bg3 Bf2 Bh2 B4g3 Nf4
qB2Q3/P2p2pn/2PPrPR1/3n1R2/n2k2b1/1R5N/rbN2NKp/q1b4n b - - 0 1 illegal: No proof kernel
2R2r2/p2QP1bK/b3pN1P/PB1r3p/PNN2k1q/1b5R/1bnq2Rn/7n b - - 0 1 illegal: No proof kernel
brR3K1/1p1R1n1P/b2bqPpQ/2N5/b2r1Rb1/1p3N2/1P3bnP/1NB1k3 b - - 0 1 illegal: Other
3rr3/1k5b/2p1QNRb/2Pp3b/2NPPP1r/bK1n1p2/1R2qR2/2bNq2B b - - 0 1 legal: proof: f4 f5 Kf2 e5 b4 exf4 g3 a5 Nf3 axb4 Ng1 f3 Ke3 f2 Kf3 f4 Kg2 Bd6 Bb2 Bc5 Bc1 Bf8 Kf3 h6 Ke4 f3 Kd3 Ra7 Bb2 Ra6 Bf6 Nc6 Bg5 hxg5 Kc4 Ra8 Kb3 Nd4+ Kb2 Ne6 Kc1 Nf4 gxf4 Rh3 Nc3 Rh7 Nb1 Rh8 Kb2 b5 a4 d5 c4 Kd7 h4 Kc6 e3 g4 d3 g5 a5 g3 a6 b3 a7 g4 h5 b4 h6 g2 h7 g3 Nh3 g1B Ra5 g2 Ng5 Kb7 Nc3 c6 Nge4 Ne7 Qe1 Qe8 Ra6 Ng6 Qb1 Bh6 Qc1 Ne5 Ra3 Bg4 Qd2 Rd8 a8N Bh5 Ra2 Qe6 Rh2 Rhe8 h8R Qe7 Be2 f1Q Nb6 Qe1 Nd1 Bf2 Qc1 g1B Rg8 Bh4 d4 Nd3+ Ka1 Qe6 Rb2 Be7 Bf1 Bef8 Rbf2 b2+ Ka2 b1R Bg2 Bd6 Rg6 Rb2+ Ka1 b3 Nf6 Ba3 c5 Ra2+ Kb1 b2 Kc2 b1B+ Kb3 Rd2 Bh1 Qe7 Rf1 Rg2 Qc4 Rg4 Rb2 Rh4 Qc3 Bf2 Nc4 Qe2 Qa5 Be1 Qc3 Bd2 Rf2 Bc1 Qa5 Qc7 Qe1 Qa5 Qf1 Qae1 Qh3 Ne5 Qe6 Be4 Rg8 Bh7 e4 Nd3 Rg6
2r1k3/b1R2N1p/q3bPQb/4N1RP/p1p2bB1/4n1q1/P1r1bRP1/1K3N1b b - - 0 1 legal: proof: e4 b5 d4 f5 c4 fxe4 h4 g5 h5 c5 Bf4 Na6 Bb8 bxc4 Bf4 c3 Bg3 c4 Bh4 Nc5 dxc5 gxh4 f4 e5 b4 d5 c6 a5 b5 a4 f5 d4 b6 d3 b7 c2 Kd2 c1B+ Kc3 h3 b8N h2 c7 e3 f6 e4 Nd2 e2 Ngf3 e1Q Ng1 e3 Rb1 e2 Nc6 Be6 c8R Rb8 Rb3 Ne7 Nh3 Bh6 Rg1 h1B Ne5 Qg3 Ra3 e1B Qc2 Bf2 Rc7 Qc8 Be2 Nf5 Nf1 Qa6 Ng5 Rb2 Bg4 Ba7 Ngf7 d2+ Qd3 Ne3 Qg6 d1B Rb3 Bf3 Rb5 Rf2 Rd5 Bd2+ Kb2 Bc1+ Kb1 Rc2 Nd3 Be2 Rg5 Ba3 Nde5 Bd6 Nd2 Rf8 Rf1 Rg8 Rf2 Rh8 Nd7 Bf4 Nf1 Rf8 Nh8+ Kd8 Ne5 Re8 Nd3 Rg8 Rc8+ Kd7 Nf7 Rh8 Rcc5 Rc8 Nde5+ Ke8 Rc7
1r1n1r1r/n2p1p1B/3PQ2N/p3b3/2P3qk/K2NPBB1/2Nr1P2/1rr1q2R b - - 0 1 legal: proof: d4 b5 b4 c5 h4 e5 a4 g5 d5 gxh4 Ra3 Ba6 Rah3 cxb4 Rf3 b3 Rf4 b4 Rd4 Bb5 axb5 exd4 Kd2 Ke7 c4 Kf6 g4 Kg5 e3 a5 d6 h5 b6 h3 b7 h2 Qe1 h4 Bb2 h3 Kc1 d3 Be2 Bg7 Qf1 Kh4 g5 Be5 g6 Qg5 g7 Ne7 g8B Qg4 Bh7 Nec6 Qg2 Nd8 Qe4 Nbc6 b8N Na7 Na3 d2+ Kb1 Rf8 Na6 Rb8 Ba1 b2 Ka2 d1Q Nc5 b1R Nc2 b3+ Ka3 b2 Nd3 Rc1 Bf3 b1R Ne2 Qe1 Ng3 Rd1 Qf5 Rd2 Qe6 Rc1 Nh5 Rcb1 Nf6 Rc1 Ng8 Rcb1 Rf1 h1R Nh6 h2 Bc3 Rg1 Bb2 h1R Bd4 Bg7 Be5 Bh8 Bf4 Be5 Bh2 Qh5 Nc1 Rgg8 Rg1 Rh8 Nd3 Qf5 Rg6 Rf1 Rg1 Qg4 Rh1 Qe2 Qd5 Rfc1 Qe6 Qe1 Bg3+
N1nrb1n1/qR1Pq3/P1Pb3q/K1BB2b1/1Q1B4/k3pp2/1R3Ppp/4R1r1 b - - 0 1 illegal: No possible last move, all moves rejected
1N2n1Kn/1Q1N2P1/2p5/1RPBrPq1/pr1pr2B/3Bq2b/PNp4b/2k1n3 b - - 0 2 legal: proof: c4 e5 e4 g5 d4 f5 h4 gxh4 b4 b5 Nd2 Na6 Rb1 Nb8 Rb2 Bg7 Rc2 Bf8 dxe5 fxe4 c5 Nh6 Rc3 Ng8 Rc4 bxc4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 f4 Kc3 g4 h5 Kg6 a5 Kf7 d5 b5 e3 e6 c6 g5 e2 b6 e1N g6 a4 e7 d4 e8B h3 b7 h2 g7 h4 Ngf3 h3 Qe2 Kc2 Ba3 c3 Ne5 Rh4 Nd3 Nf6 Bc1 Bd6 Qg2 Nbd7 b8N Nf8 Qd5 Ng6 Bd7 Ne8 Ba3 Nh8+ Kg8 Qg5 Nb2 Kc1 Be6 c2 Bd3 Ra6 Rg1 h1R Qb3 h2 Ne4 Rb6 Nf6 Rb4 Bd5 Bh3 f5 Re4 Nfd7 Qe3 Rg3 Rf1 Rf3 h1Q Rg3 Qg2 Rf3 Rc4 Qb7 Qgg5 Bb4 Bh2 Ba5 Rb4 Bd8 Re5 Rg3 Rf4 Bf6 Qg6 Bh4 Qg5 B3c4 Qd2 Rb3 Qe3 Bf1 Rfe4 Bd3 Rc4 Rb6 Rb4 Rb5
r3B1r1/1r1QB2q/1rp1pNb1/k1PPR1p1/3BP2n/4rPnK/p2b4/3NN3 b - - 0 2 legal: proof: b4 f5 g4 fxg4 a4 b5 axb5 d5 c4 Ba6 h3 gxh3 c5 Bc8 Ra2 Bb7 Rc2 Bc8 Rc4 dxc4 d4 Kd7 e4 h5 b6 Kc6 f3 Kb5 Kf2 a5 Kg3 c6 d5 h2 b7 a4 Be3 h4+ Kg2 a3 Be2 h3+ Kg3 a2 Nd2 Qd7 Qa1 Nh6 Qb2 Nf5+ Kg4 Rg8 Nb1 Nh4+ Kg3 g6 Bd4 Bh6 Bf1 Bd2 Ne2 c3 Na3+ Ka6 b5+ Ka5 b6 c2 Qb1 c1R Nc2 Re1 Nc3 Re3 Ne1 g5 Nd1 Qf5 Qb3 Nd7 b8N Nf6 b7 Qh7 Nd7 Nh5+ Kg4 Ng2 b8B Ng3 Qb7 Nh4 Ba6 e6 Nf6 Bd7 Bd6 Be8 Be7 Bf7 Qd7 Bg6 Rg1 h1R Bc8 h2 Kh3 Nf1 Rg4 Ng3 Rf4 Rg1 Kg4 h1R Rf5 Rg2 Re5 Rge2 Bf8 Rb3 Bd6 Rb6 Be7 Rg1 Kh3 Re3 Qd6 Rg2 Bd7 Rge2 Be8 Reb3 Ng4 Ree3 Nf6 Rb7 Qc7+ R3b6 Qd7
r1r1Q1rR/1pnKB1n1/7P/nNpk2q1/B2p2N1/2pPbPP1/4b3/3nBN2 b - - 0 1 illegal: No proof kernel
1N2n1k1/2n1Nbpb/QnRR4/N1K2RbB/P2n1PP1/2p3qp/3p1rP1/r7 b - - 0 1 illegal: No proof kernel
k1r1B1b1/2PPb3/Kp2p2p/n1p1b1R1/4r3/1P1Rqb1Q/n1B2B1P/3Rn2N b - - 0 2 illegal: No proof kernel
1RQ3B1/b1kp1pbP/3nn2B/P1B1pr1p/qR6/1n1KNP2/3b2RP/6br b - - 1 2 illegal: No proof kernel
4RKN1/3r1BN1/3RqpPp/6qP/1bqqpn2/rn1pk1P1/R1Q1PN2/7r b - - 0 1 legal: proof: b4 c5 d4 cxd4 f3 g5 b5 b6 Be3 Bb7 Bf4 gxf4 Nc3 a6 Ne4 axb5 Nc3 b4 Nb1 Be4 Nd2 Bf5 Nb1 Bg4 fxg4 Qc7 Qd3 Qc8 Qd1 Qd8 Kf2 e5 Kf3 Ke7 Ke4 Kd6 Kf5 Kd5 h4 b5 a4 e4 c3 b3 g5 f6 g6 f3 a5 d3 g3 f2 c4+ Kd4 c5 d5 Ke6 b4 Kf7 b2 c6 b3 a6 d2 c7 Bb4 c8R Nd7 a7 Ke3 Kg7 d4 Qe1 d1R Bh3 f1Q Ra3 Qf5 Nc3 b1Q Ra2 Qg5 Be6 b2 Nh3 Nc5 Bf7 Ne7 Nf2 Qd3 h5 b1Q Rf1 h6 Rg1 Qd7 Re8 Rh7+ Kf8 Qa1 Rf1 Rb1 Qd1 Qe6 Qc2 Qdc4 Rd1 Nd5 Rd2 Rh1 Rd1 Rd8 a8N Nf4 Nc7 Ra8 Rd2 Ra3 Rd1 Qea6 Ne6 Qc6 Ng7 Q6e6 Nb5 Qac3 Na7 Qb2 Nc6 Nb3+ Ne7 d3 Rda1 Ra7 Ra6 Qbd4 Rd6 Ra3 Ra2 Qh3 Bd5 Qe6 Ng8 Qee5 Ne6 Rd7 Ng7 Qef5 Bf7 Qfe5 Qc3 Qee6 Qc2
1K6/P1p1b3/1pr2ppr/1p3PBb/2R1N1NQ/rP1p4/NRP3kq/nR5b b - - 0 3 legal: proof: g4 h5 d4 hxg4 d5 a6 Bg2 e6 Be4 exd5 Bf3 d4 Be4 Qh4 Bc6 Qd8 e3 d3 Ba4 Nc6 Bb5 axb5 e4 d5 Bd2 d4 Bh6 Nce7 Bc1 Nd5 exd5 Ba3 Bf4 Bd6 Bc1 Bf8 Kd2 Ke7 f4 Kd6 a4 g6 h4 g3 f5 Ke5 h5 Kf4 a5 g2 d6 Kg3 a6 b6 a7 f6 h6 Qd7 h7 Be7 Qe1+ Kf4 Nh3+ Kf3 Qh4 g1R Nf2 Rg4 Nc3 Rf4 Nfe4 Kg2 Na2 Rf3 Rb1 Bb7 Rd1 Qc6 d7 Qd6 d8N Qh2 Nc6 Rd8 Ne5 Rd6 Ng4 Rc6 Rh1 Nh6 Rd1 Nf7 Rf1 Ng5 Rd1 Rc8 h8R Ne6 Rd8 Ra8 Rd5 Rb8 Rc5 Rh8 Rc4 Rh6 Ke1 d2+ Ke2 Rf1 Kd3 Ba8 Re1 d1B Bg5 Rh1 Nd2 Rf1 Ke4 d3 Kd5 Nd4 Ne4 Bf3 Rec1 Nb3 Re1 Na1 b3 Be2 Rb2 Rf4 Reb1 Bd1 Ne5 Bh5 Ng4 Bb7 Nd6 Rd4+ Ke6 Ba8 Kd7 Rf4 Kc8 Re4 Rc5 Ra4 Kb8 Ra3 Rc4 Kf3 Qe1 Rc5 Nf7 Bd5 Nd6 Rc6 Qc1 Kg3 Qe1+ Kh3 Qf2 Bh1 Qh4+ Kg2 Ne4
7r/3PNpp1/3b1qb1/2p2n2/QRp2Bq1/KB1NNPP1/pnPq1r2/k1nB4 b - - 0 1 illegal: No proof kernel
1KB1r1Q1/3p1pB1/3Nbp1p/P2kpN2/1n1BqP2/1r1P4/pbn1P1pR/N4n2 b - - 0 1 illegal: No proof kernel
nB1bb2n/K2P4/1Rbn1b2/P4Q2/rn2N3/1n1kB1rP/4R1P1/2Qr3B b - - 0 1 illegal: Other
8/KRnr2q1/1P1bkP1n/BQ1B1r1n/1NPP1nbB/4q3/3Nq2b/2Q4n b - - 0 1 legal: proof: b4 b5 e4 c5 h4 g5 c4 gxh4 Rh3 f5 exf5 d5 Rc3 d4 a4 cxb4 axb5 dxc3 Qf3 Nf6 Be2 Qd4 Na3 Nd5 Bb2 Na6 Nh3 Qg4 Kf1 Nc5 Rd1 Bd7 Nb1 Na6 Bc1 Nf6 Re1 Nb8 Bd3 Qd4 Qd1 Nc6 Ke2 Qd6 Rh1 Nb8 Ke1 Bc8 Bf1 Ng8 Ng1 Qd8 Ke2 Kd7 Kd3 h5 Kd4 e5+ Kd5 a5 f4 b3 g4 a4 f6 e4 f7 e3 f5 a3 f6 h3 d3 h2 b6 a2 g5 a1B g6 e2 g7 e1Q Bf4 b2 Qd2 h4 Qc1 h3 Bg3 c2 Nd2 b1Q Nb3 Qc7 Nf3 Ra7 Nfd2 Nh6 g8Q Qe3 Qg5 Qb2 Be2 Na6 Re1 h1N Bf3 h2 Nf1 Bd6 Bf2 Ng3 f8B h1N Nbd2 Nh5 Bh4 Qa2 Be7 Bae5 d4 Bh2 Re2 Rg8 Rg2 Rg6 Qe5 Rg8 Rg7 Qb2 Rf7 Rg5 Bg2 Rf5 Rh7 Qe2 Ne3 Qa3 Be4 Qd8 Rg7 Qf8 Rh7 Qg7 Bf3 Bb8 Bb4 Nc7+ Kc5 Qc3 Nd5 Qce3 Ba5 Rb7 Nb4 Ra7 Qb1 c1N Bd5 Rb7 Qf4 Ra7 Nc6 Rb7 Qb5 Ra7 Kb4 Nd3+ Ka4 Rb7 Qf1 Ndf4 Qc1 Kd6 Kb4 Re5 Ka4 Bg4 Nb4 Rf5 Qe8 Nce6 Kb5 Rd7 Ka6 Nc7+ Kb7 Rf7 Qb5 Rd7 Bg2 Ke6 Be4 Ne8+ Ka6 Bc7 Ka7 Bd6+ Bb7 Nc7 Bf3 Bc5 Bd5+ Kd6 Nc2 Na8+ Kb8 Qg5 Be4 Re7 Nf3 Ke6 Nb4 Rf7 Bb7 Bd6+ Ka7 Re7 Rf7 Qg7 Nd2 Rc7 Rf8 Re7 Rb8 Nc7 Bg2 Rf7 Rb7 Rd7 Bd5+
n3Q1Kb/2B2PB1/3qrqRR/1R1PqPr1/8/4n2r/1q1P2k1/1rNq1bQ1 b - - 0 1 illegal: No possible last move
B2QR3/b6K/nbb5/Qn2R3/Pr3n1Q/4qPPr/N4Pkq/4qNbq b - - 0 1 legal: proof: c4 a5 b4 axb4 a4 f5 h4 d5 cxd5 g5 Qb3 gxh4 Ba3 f4 Qd1 f3 exf3 bxa3 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 d4 h5 d6 c5 d7 b5 d5 e5 d6 a2 Bc4 h3 Bd5 Kh4 Kf5 e4 Kg6 c4 Qf1 e3 Nd2 b4 Qe2 b3 Re1 a1B Ne4 c3 Ng5 h2 Qd2 b2 Be4 b1N Nf7 c2 Qd3 c1B Qe2 Bd4 Qc4 e2 Qb5 Qe7 d8Q Bf4 d7 Bb7 Nh3 Ba7 Qb3 Bc6 Qb2 Nc3 Rhf1 h1Q Rb1 e1Q Ng1 Bh2 Qa3 Na6 Qd6 Nf6 Ne2 Rb8 g3+ Kh3 Nc1 h4 Nh6 Nb5 Q6c7 Nd5 Qa5 Kg2 Nf5 h3 Na2 Bg1 Ra1 Qa3 Qh4 h2 d8Q Qae3 Rc1 Bd6 Rc5 Nf4+ Kg7 Bc7 Re5 Bcb6 Bd5 Be8 Ba8 Bc6 Re8 Qb4 Rc1 Qbe1 Rc5 Rh5 Rce5 Rb7+ Qhe7 Rh3 Kg8 Rd7 Qg5 Rd4 Qh4 Rb4 Kh7 Kf1 Rg8 Qg2 Rge8 h1Q Nd4 Qhh2 Nb3 Qgh1 Nd2+ Kg2 Nf1
q4R2/R1q2Pn1/b1b2b2/2B2n2/4N1Pr/1qnnPQ1b/BkPK4/1B1Qr3 b - - 0 1 legal: proof: h4 b5 d4 f5 a4 e5 axb5 exd4 e3 g5 hxg5 c5 Rh5 f4 Rh1 f3 Qd3 c4 Kd2 cxd3 Nc3 Nc6 Nce2 fxe2 Ra4 Nb8 Ra3 Bg7 Ra1 Bf8 b4 Kf7 f4 Ke6 f5+ Kd5 f6 Kc4 f7 e1N b6 a5 b7 d5 g6 h5 b5 h4 g3 h3 g7 h2 b6 a4 Ra3 Qc7 Bg2 Rh4 Bf1 Nh6 g8B Nc6 b8Q Be7 b7 Bf6 Bh7 Nd8 Be2 Nf5 Bb2 Ne6 Nf3 Neg7 Ra1 a3 Rd1 a2 Ng5 a1Q Rg1 h1B Rg2 Qa4 Kc1 Qb3 Rf2 Ra1+ Kd2 Bg2 g4 Bh3 Bg6 Kb4 Bc3+ Ka3 Bb4+ Kb2 Rf4 Bd7 Qd8 Bc6 b8Q Rb1 Rc1 Ra1 Re4 Rb1 Kd1 d2 Qb7 Nd3 Bc5 Ra1 Bf1 Rb1 Ke2 d1N Kd2 Nc3 Re8 Ra1 Be2 Rb1 Rg1 Re1 Rf8 Nc1 Qb4 d3 Qe4 d4 Qf3 Qbb8 Rg3 Nh6 Qe8 Rg1 Be4 Qa8 Qd8 Na4 Bd5 Nhf5 Ne4 Rh1 Bf1 Rg1 Ke1 d2+ Kf2 d1B Ke1 d3 Bb3 Be2 Qd7 Rh1 Rg1 d2+ Kf2 Ba6 Bfc4 Bc8 Rd1 Re1 Qd5 Ne2 Ra1 Nc1 Qd7 d1Q Bd5 Nc3 Ra7 Qd3 Be6 Qc4 Qdd1 Ba6 Bd5 Rg1 Be6 Bf1 Ke1 Bh3+ Kd2 Rh1 Ba2 Re1 Bb1 Nd3 Bd5 Qb4 Bda2 Qc4 Bb4 Qb3 Bc5
qb3bB1/P3P1bb/r3P2b/3nq1N1/1b3QPQ/1kB1rR1R/4qR2/2K4b b - - 0 1 legal: proof: d4 a5 g4 b5 b4 f5 c4 fxg4 Na3 bxc4 b5 e5 dxe5 Bd6 Nc2 Bf8 Bh3 g5 Bf1 g3 Rb1 g4 Qd6 g2 Qd1 Nc6 Ra1 Nd4 Nb4 axb4 h3 g3 Qc2 Nf5 Qb3 Ne3 Qd1 Ng4 hxg4 Bb7 Bg5 Ba6 Bc1 Bc8 Kd2 Ke7 e4 Ke6 f4 c5 a4 d5 b6 h5 a5 d4 a6 d3 b7 b3 b8R b2 Rh3 b1Q Ne2 g1B Rb4 c3+ Ke1 g2 Rd4 h4 Rh1 c4 Qb3 c2 Kd2 h3 Nc3 h2 Ba3 c1B+ Kd1 d2 Ne2 Nf6 Ng3 Bb2+ Ke2 Rh3 Bb4 Nd5 Rd3 c3 Ra2 c2 Rf3 c1B Kd1 Bgc5 Bc3 g1B Bc4 Qa1 Qc2 Bb4 f5+ Kf7 f6 Ke6 f7 Ba7 Qa4 Bb8 Qe8+ Qe7 Qd8 Qb7 Qh4 Ra7 Re1 h1B Ree3 Qa8 Kc2 Bd7 Bb3 Bb5 Kd1 Bd3 Bc4 Rd7 a7 Rd6 Bb3 Ra6 Bc4 Bg7 f8Q B2a3 Qf4 Bbf8 Rc2 Bab4 Rb2 Kd7 e6+ Kc6 e7 Kc5 e5 Bh7 Rd3 Qa5 Kc2 d1Q+ Kb1 Qb5 Rbf2 Qe2 Ba2 Qa5 Ne4+ Kb5 Ng5 Ka4 e6 Bd2 Kc2 Qc7 Bb1 Qce5 Kb2 Be1+ Kc1 Kb3 Rde3 Bh6 Bg6 Rg3 Bf7 Rh3 Rh2 Bf2 Rd3 Bd4 Bg8 Rg3 Rff2 Re3 Rh3 Qf5 Rg3 Bdg7 Rgf3 Qe5 Rh3 Re4 Rdg3 Re3 Rgf3
rRK2bq1/2B4b/QPP3P1/r5Q1/1Pq3r1/4R1kn/N1bb4/1bQBb1r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 f4 g5 f5 cxd4 h4 Qb6 g4 Qc7 h5 Qb6 Nc3 Qd8 Nce2 Nc6 Nf4 gxf4 g5 Ne5 Ne2 Bb7 Ng1 Ng6 hxg6 Bc8 Kf2 d5 b4 Kd7 c4 Kd6 g7 Ke5 f6 h5 b6 a5 c5 a4 f7 f3 Kg3 d3 c6 d4 Qe1 d2 Qe3 d1R Bb2 a3 Ra2 h4+ Kf2 h3 Kg3 h2 Qd2 f2 Bc4 f1Q Bd3 e3 Qc2 e2 Nh3 e1B+ Qf2 Nf6 g8Q Rh4 Kf3 Bd2 Ng1 Nh7 Bb1 Bf5 Ra1 a2 Bc2 Qc4 Ne2 Rg1 Nc1 Rhg4 Bd1 Bb1 Qe2+ Kf5 Qe1 d3 Be5 e6 Bc7 e5 Qe3 Qe8 Qc5 Qee6 Qb5 Qg6 Qa6 e4+ Kf2 e3+ Kf3 e2 Qg7 R1g2 Re1 h1B Qc3 Qg8 g6 Kg5 Qe5+ Kh4 Qg5+ Kh3 Rf1 e1B Rg1 Bc5 f8Q Bd6 Qff4 Bf8 Qb7 Ra5 Rf1 Ra8 Rf2 Ra5 Qa6 Rg1+ Rg2 Bc3 Ke3 d2 Rf2 Bd5 Re2 Be6 Kf3 Bf7 Re5 Be6 Qe4 Kh2 Qc2 Bf7 Ke3 Kg3 Qb2 Nf6 Qc2 Nh5 Qb2 Nf4 Qc2 Qc5+ Ke4 Nh3+ Kf5 Qc4 Kf6 Bg7+ Ke7 Bf8+ Kd8 Be6 Be2 d1B Qb2 Bdc2 Bd1 Bd5 Kc8 Bcd2 Ne2+ Kf3 Nc3+ Kg3 Qa3 Bce4 Qc1 Bbc2 Rb1 a1R Rb2 Bb1 Ra2 Bec2 Ra4 Qg7 Na2 Bg8 Qb5 Bh7 Qa6 Qgg8 Ra3+ Kh2 Rd3 Kg2 Rd8 Kf2 Kb7 Kg3 Rb8 Qgf7 Kc8 Qg8 Nc3 R1a4 Na2 Ra3 Qb5 Ra8 Qa6 Ra5 Re3+
1kQ2r2/3n4/P1R3Pn/1K1n1r2/Nb2RB1q/3n1P2/RPr1r1B1/2rrQq2 b - - 0 1 illegal: No possible last move
bb2BqN1/1rBP4/5b2/qk3r2/Rr1PK1P1/BbRn2bP/1Q1b4/2Q2r2 b - - 0 1 legal: proof: c4 b5 f4 g5 a4 gxf4 axb5 d5 e3 dxc4 d3 Ba6 d4 Bc8 g4 h5 d5 h4 Nd2 Nc6 Ne4 Nd4 Ng3 hxg3 exd4 Rh5 Ra2 Rh7 Ra1 Rh8 Ke2 Kd7 Kf3 c5 b4 e5 h3 a5 b6 f5 d6 Kc6 d7 g2 b7 c3 b8B e4+ Ke2 a4 Bb2 f3+ Ke3 c2 Bc3 c1B+ Bd2 a3 Qe1 f4+ Kf2 c4 Ne2 g1R Rh2 c3 Bg2 c2 Bc7 a2 Be5 Ne7 Ng3 Kb5 Nh5 Nd5 Ng7 Rb8 Bh1 Be7 Rg2 Rh5 Bc7 Rf5 Ne8 Rb7 Qd1 Bf6 Be1 Bd2 Ba5 c1B Rb1 a1Q Bb6 Qa5 Rh2 Qe7 Bd8 Qf8 Bc7 Rg3 Ra1 e3+ Kf1 f2 Ke2 f1R Kd3 e2+ Ke4 f3 Ra4 Ba3 Qc1 f2 Rg2 Rc3 Rg3 Rb3 Rc3 Nf4 Bf3 Nd3 Bg2 Bh8 Nf6 Rb1 Ng8 Bf6 Qc2 Bac1 Qb2 Bf4 Bh1 Bcd2 Qc1 Bg3 Bf3 Bdf4 Bd2 e1B Bd1 Rb6 Bb3 Rb7 Bf7 Rb3 Be3 Bd2 Be8 Rb1 Bb6 Bb8 Bc7 Rh1 Bef4 f1B Bfd6 Be2 Bc5 Bd1 B5d6 Bb3 Be7 Ka6 Bed6 Rhf1 b5+ Ka7 b6+ Ka6 Ba3 Kb5 Bd8 Ra7 Bc7 Bb7+ Rc6 Ba8 b7 Bd1 Rcc4 Rb4 Rc3 Bb3 Bf4 Ra6 Bc7 Rb6 Rc6 Ba7 b8Q Rb7 Rc2 Qb6 Rc3 Qa5 Qd8 Bb8 Qb2 Bh8 Qg5 Bf6 Qe3 Bf2 Qe1 Bg3 Qec1
6K1/5NbQ/rQ1Pn1b1/nq2B3/1nk2qrQ/1qP1PP1r/2Rb3p/3RB3 b - - 0 1 illegal: No proof kernel
1Nq1n3/1bbp1QQ1/rb1nq3/nBR5/4qr2/P4PN1/2PK1P1k/1BrQ4 b - - 0 1 legal: proof: d4 a5 h4 g5 b4 axb4 h5 c5 dxc5 f5 Bb2 f4 Bc1 f3 exf3 Ra3 Kd2 Ra5 Ke1 Ra8 Rh4 Ra5 a3 Nh6 Qd2 Bg7 Nc3 Ng8 Be2 Rb5 Bb2 Bf6 Kf1 Bg7 Nh3 Qb6 Re1 Qc6 Nb1 Kf7 Qd1 Qc7 Bc1 Ra5 Bd3 Ra7 Ke2 Ke8 Rh1 Ra8 Ng1 Qd8 Ke1 Bh6 Bf1 Bf8 g4 gxh4 g5 h6 g6 Qc7 Be3 Qd8 Bg5 hxg5 g7 Kf7 h6 Kg6 h7 Kh5 c6 e5 c7 b5 Nc3 h3 Nb1 Kh4 Qd4+ e4 Qd2 b3 Qd6 g4 Kd2 b2 Kc3 b4+ Kd2 b3 Qe5 h2 Bh3 e3+ Kd3 g3 Nc3 b1Q Nce2 g2 Qb2 Bb7 c8B Ra6 Kc3 Qa2 Qb1 b2 Be6 Nc6 Qf1 b1N+ Kd3 Nd2 Nf4 e2 Bf5 e1Q Bh3 Na5 Be6 Ndc4 Nd5 Bc5 Ne7 Nf6 g8Q Bb6 Qf7 Rf8 Ne2 Ne8 Nc6 Ncd6 Ng3 Qe4+ Kd2 Qb3 Bc4 Kh3 Qd1 Qa2 Re1 g1B Nb8 h1R h8Q+ Kg2 Qh6 Bh2 Qhg7 Qb3 Bb5 Qbe6 Bc4 Qc7 Ba2 Qcc4 Bb1 Kh3 Qfg6 Rf4 Q6f7 Qc7 Re3 Re1 Rc3 Kg2 Qe2 Rc1 Rc5 Qd8 Nh5+ Bg3 Qf1+ Kh2 Qd1 Ba8 Bb7 Qc8 Bc6 Bb7 Bb5 Bh4 Qh8 Bhd8 Qhg7 Bdc7 Ng3
QKn1qn1b/P1n1Bb1r/k2b4/N3Br2/1QpR1P2/2r5/P1qP3q/B4N2 b - - 0 1 legal: proof: c4 a5 f4 g5 e4 f5 b4 d5 bxa5 h5 Na3 g4 Rb1 Rh6 Rb3 Rh8 cxd5 fxe4 Rf3 Ra6 g3 Ra8 Bh3 gxf3 g4 Bh6 g5 Bf8 Bg4 hxg4 Kf2 Kd7 Kg3 c5 h4 Kc7 a6 Kb6 g6 e5 a7 e3 d6 c4 g7 e4 h5 f2 d7 f1N+ Kg2 g3 h6 e2 h7 e1Q Rh5 e3 Kf3 g2 Ke4 e2 Kd5 Qf2 Rh4 e1R Rh1 Re3 Qe2 Ne7+ Kd6 Ka6 g8Q b5 Qg3 b4 Rh3 b3 Qeg4 b2 Q4f3 b1Q Nc2 Rc3 Ne2 g1B Na1 Ne3 Nb3 Qe8 Kc7 Qc2 d8B Be6 Na5 Nd7 Bb2 Bf7 Ba1 Nc8 Be7 Qh2 Qg7 Rb8 Qa8 Rb5 Ng3 Rf5 Nf1 Bf2 Qg8 Bg7 Qb8 Nf8 Qb4 Nd5+ Kb8 Bc5 Rd3 Nc7 Rd4 Be5 Qg2 Bcd6 Qh1 Rg8 h8B Rg7 Qa8 Rh7 Bg7 Bf6 Bh6 Bh8 Bg7 Rg5 Bgf6 Rf5 Be5
2q1k1B1/Q2rr1n1/1P2n2b/P1rr3n/2R2p1N/Pb1RQPr1/2B4K/b5Q1 b - - 0 1 legal: proof: b4 a5 e4 g5 c3 d5 bxa5 dxe4 c4 b5 cxb5 g4 Qb3 g3 Qf3 Ra6 Qd1 Ra8 f3 h5 Ba3 Qd3 Bc5 Qd8 Bf2 gxf2+ Ke2 Bd7 Ke3 Bh3 Ke2 Bc8 g4 Qd6 g5 Qe6 Nc3 Qg6 Nd5 Qd6 Ne3 Qd8 Ng4 hxg4 h4 c5 d4 e5 d5 f5 d6 c4 h5 f4 b6 g3 h6 e3 h7 c3 a3 e4 g6 c2 g7 c1R Rb1 g2 Nh3 g1R Rb3 Nc6 Qe1 Nh6 g8B Rc5 Bg2 f1N Be6 Nf5 Nf2 Ng7 Nd1 Ra7 Bgh3 Rg3 Rd3 Rd7 Bhf5 Rg8 Qf2 Nd4+ Ke1 e2 h8Q Bb7 Ne3 Bd5 Qh7 Bb3 Ng2 Qc8 Qe3 Rh8 Kf2 e1R Bc4 Nde6 Kg1 Rd1 Qg8 Rh7 Rh2 Re7 Kh1 Rh5 Nh4 Rd2 Bh7 Rhd5 Bf5 Rd1 Rc2 Rd2 Qh7 Rd1 Qg1 e3 Rc1 e2 d7+ Kd8 Qe3 e1B Qg6 Bc3 Qg5 Nd2+ Kh2 Ba1 Bh7 Ne4 Bg8 Bc2 Bb3 Nf6 Ba4 Bb3 Rc4 Nfh5 Qg4 Ba2 Bc2 Bb3 Qg6 Nf5 Qh7 Bh6 Qg1 Nfg7 Qe4 Re8 Qee3 Ke7 d8Q+ Kf8 Qd7 Re7 Qa7 Ke8 Rdc3 R1d4 Rd3 Rdd7 Ng6 R4d5 Nh4
1b1k2b1/Q3P3/1rQ2nRN/P1B3r1/K3np2/1BP1r1q1/n1P2rN1/1br2Q2 b - - 0 1 legal: proof: b4 a5 g4 axb4 a4 c5 f4 e5 f5 h5 g5 c4 Ra3 f6 Rf3 c3 dxc3 fxg5 Rf4 exf4 Nd2 h4 Bg2 h3 Bxh3 g4 Bg2 Rh7 Bf1 Rh8 e4 g5 h4 b5 h5 d5 h6 b3 a5 d4 e5 g3 f6 g2 h7 b4 Ne2 g1R Bb2 g4 Rh5 d3 Qb1 g3 Kd1 g2 Nd4 Na6 Kc1 Be6 Nc6 Bd6 Rh6 Bb8 Nf3 d2+ Kd1 Qb6 Rg6 Qf2 Ncd4 Kd8 f7 Nf6 Ba3 b2 Ne1 b3 Nf5 Nb4 Nh6 Qg3 Bc4 Na2 Bc5 Rh1 Ke2 g1R Ng2 d1N Kd2 Re8 h8Q Ra6 f8Q Nf2 Qhg7 Bg8 Qa7 Rb6 Qf1 b1R Qfg7 b2 Qgb7 Rh3 Qc6 Rc1 Bb3 b1B Ke2 Re7 Kd2 Rg7 e6 Rgh1 Ke2 R1h2 Kd2 Rh5 Ke2 Re5+ Kd2 N2e4+ Ke2 Qh4 Kd3 Qg3+ Kc4 Rg5 Ne3 Rf2 Ng2 Ra6 Kb5 Rb6+ Ka4 Rd7 Ng4 Rd3 Nh6 Re3 e7#
7n/1P4N1/1n3b2/1b2PBP1/Nnk1Pr1R/2b1r2Q/3qp1R1/Rqn1QnK1 b - - 0 1 legal: proof: d4 c5 a4 b5 axb5 g5 h4 gxh4 e4 e5 Be3 cxd4 f4 dxe3 fxe5 Bd6 Qc1 Be7 Qd1 Bf8 c4 f5 b4 d5 g4 Kd7 c5 a5 g5 h5 b6 Kc6 b7 h3 Ra2 e2 Kf2 Kb5 c6 f4 c7 a4 Rc2 a3 Rc1 h4 Qd4 f3 Qe3 h2 Qd2 d4 Nc3+ Kc4 b5 d3 b6 a2 Rb1 a1B Rb2 h3 Qc1 d2 Rb3 d1N+ Kg3 f2 Nb5+ Bc3 Qf4 Be7 Rb2 Na6 b8R Rh4 b7 Nh6 Qf8 Nf7 Rb3 Nb2 Kf3 Bd7 c8Q+ Bc6 Kg3 Nh8 Nf3 Bf6 Nfd4 Nb4 Ne6 Ra3 Ng7 Rf4 Ra8 Na4 Qd6 Qd7 Qd1 Nb6 Qe1 Qd2 Rg1 h1Q Rg2 h2 Qh3 Qg1 Rb1 Bd7 Ra1 Be8 Nc7 Bb5 Na6 Rb3 Nc5 Ra3 Na4 Rb3 Qh7 h1N+ Kh3 Ng3 Qh6 Nf5 Rb8 Nd4 Qh4 Nf7 Rh8 Ra3 Kg3 Nb3 Qh3 Nc1 Rh7 Nh8 Rh4 Qh1 Rg1 Qf3+ Kh2 Qfd3 Rgg4 Q3c2 Bg2 f1N+ Kg1 Qcd3 Bf3 Qb1 Rg2 Bb2 Bh5 Re3 Bg6 Bc3 Bf5
2r1N2Q/nK3PP1/2BP1n2/7q/b5b1/PNrR1qQR/2p1br2/bR3kn1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 f4 h6 g4 Qd7 Bb2 Qd6 Bf6 gxf4 g5 Qd7 g6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 e5 h5 b5 d6 b3 h6 b4 h7 b2 a3 b3 d7 f3 f6 f2 d3 g4 f7 g3 Qd2 g2 Rh2 Qg5 d8R Nc6 Rh6 Nf6+ Kf3 e4+ Ke2 e3 Kf3 e2 d4+ Kc4 d5 Qh5+ Kf4 Bg4 d6 Rc8 Re8 Na7 Re3 c5 Rg3 Bg7 Nf3 g1N Nc3 b1B Qb2 Kd3 Nd1 c4 Qe5 c3 Bg2 f1Q Ne3 e1R Nd5 b2 Nc7 Rc1 Ne8 Bc2 Rb1 Ba4 Bh1 Rg8 h8Q Qg2 Qg5 Ke2 Ke5 Kf1 Nd4 Qa8 Rd3 Qf3 Ra1 b1B Nb3 Bc2 Rb1 Bd1 Kd4 c2 Qf4 Rc3 Qg3 Be2 Rh7 Qff5 Bc6 Qf3 Rh6 Qa5 Rh3 Qh5 Nc7 Rc8 Ne8 Bh6 Qf4 Re1 Qg3 Bc1 g7 Bb2 Rd2 Ba1 Rdd1 Bc4 Rd3 Rc1 Qe5 Rd1 Kc5 Re1 Kb6 Bcb5 Nc1 Re2 Kb7 Rf2 Qg3 Bc4 Rd5 Be2 Rd2 Bf5 Rd3 Bg4 Nb3+
4Nq2/1KQbP2B/2n3b1/3P2bR/rQq3Bq/3PBb1N/1P5p/1n1nk1r1 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 a5 axb5 e5 Nf3 exf4 Ra3 a4 Rd3 a3 Ng1 a2 Na3 a1Q Rg3 Qb1 Rg6 Nf6 Rg8 Nxg8 Kf2 Kd7 Kf3 Kd6 e4 Kc5 g4 Kd4 e5 f5 g5 h5 e6 c5 b6 c4 b7 h3 g6 c3 e7 c2 g7 h2 Nh3 h4 Qe1 Nc6 b8Q Nf6 g8B Ne4 Bd3 Ra4 Bc4 Bd7 Ng5 h3 Bh7 Nc3 Qe6 Rg8 Qb5 Bh6 Rf1 h1B+ Kf2 f3 Nf7 f4 Qb4 h2 Qa5 Nd1+ Ke1 f2+ Ke2 Bg5 Qd6 Qf8 Qac7 Qa1 Re1 f1N Qb4 Qa2 Bb5+ Qc4+ d3 Be4 Ba6 Nd2 Bc8 Bg6 Rf1 Nb1 Kf3 Be8 Bg4 Bd7 Re1 Rg7 Re5 Rg8 Bd2 c1Q Rf5 Qc3 Bc1 Qe1 Bd2 Bf6 Ng5 Qh4 Nh3 Rg7 Rh5 Bg5 Ke2 f3+ Kf1 f2 Ke2 Bf6 Kf3 f1B Kf4 Be2 Bc1 Bde8 Bd2 Bf3 Bc1 Bgf7 Kf5 Bg6+ Ke6 Bd7+ Kd6 Rg8 Bh6 Bg5 Nb5+ Ke3 Qba5 Ke2 Qb4 Bd2 Be3 Qa2 Kc5 Qc4+ Kb6 Ke1 Nd6 Rg7 Kb7 Rg8 Bc5 Rg7 Qb5 Bg5 Be3 Rf7 Ne8 Rf4 Bf5 Rg4 Qb3 Rg3 Bg4 Rg1 Qb4+
2K3br/3nP1Nq/4b2q/rpPQ2bn/rB2bPB1/5Q2/1R1n2PQ/2k1N3 b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 a5 a4 axb4 Rh2 g5 hxg5 c5 Ra3 f6 gxf6 c4 Rd3 cxd3 Rh4 Bg7 Rh1 Bf8 Kd2 Kf7 e4 Ke6 f4 h5 c4 d5 f7 b5 c5 b3 a5 b2 e5 Kf5 e6 Ke4 e7 h4 a6 h3 a7 h2 Qh5 Qd6 Qh6 Nf6 Qh4 Bh6 f8Q Bg5 Na3 b1N+ Kd1 d2 Kc2 Ke3 Kb3 d3 Kb4 d4 Bb2 d1R Ka5 d2 Qg8 d3 Qb3 Bh3 Be5 Nbd7 Ne2 Bf5 Qh6 Be4 Ng3 Qe6 Rg1 h1Q Bc3 Rc1 Be2 d1B Rf1 d2 Rf2 Qeh3 Qc4 Bb3 Ka6 d1B Bg4 Qh4 Qf1 Bg8 Rb2 Bdb3 Nh5 Bbe6 Ng7 Rd1 Qc4 Rd4 Qd5 Kd3 Kb7 Nd2 Kc7 Qh5 Ba5 Qg6 Kb7 Qh7 Nc2 Qh5 Kc7 Q5g6 Qh2 Nh5 Kb7 Qgh6 Kc7 Nf1 Ne1+ Ke3 Rb4 Kd2 Rb2+ Kc1 Kb7 Nd2 Kc7 Ra4 Bb4 Ra2 Kb7 Rb8+ Kc7 Rb6 Kc8 Rba6 Qd3 Ra1 Qf3 R6a2 a8Q Ra5 Qc6 R1a4 Qd5
1r3b2/4pK2/1q3RP1/1rb1N1Q1/1n1k3P/B3PnP1/Qb3r1q/1BbqR1Q1 b - - 0 1 legal: proof: a4 d5 c4 dxc4 g3 g5 Nc3 b5 axb5 Ba6 Nd5 h5 Nf4 gxf4 Qb3 Bc8 f3 Bg4 fxg4 h4 Qf3 h3 Qg2 hxg2 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Kf5 a5 h4 f3 b4+ Kd4 d3 c5 g5 f2 b6 a4 b5 a3 b7 a2 b6 c3 g6 c2 Bg5 c1Q Bf4 c4 Bd2 Nc6 b8Q c3 b7 c2 Qa7+ Qb6 b8Q Ne5 Bb4 Nf3 Ba3 Nf6 Qa5 Qe3 Qba7 Rb8 Re1 a1B Qd2 c1B Qa2 Bab2 Rh2 Kc3 d4 Nd5 Qa5+ Nb4 d5 f6 d6 Kd4 d7 Qb3 d8Q+ Qd5+ Kg4 Rh5 Qc8 Qf7 Qg5 Qb3 Kf5 Qd1 Nh3 g1B Bg2 f1R Nf4 Rf2 Nd3 Qd2 Qc6 Qd1 Ke6 f5 Kf7 f4 Bh3 Nd2 Qh1 f3 Qf6+ Re5 Qg5 Rb5 Be6 Rg2 Bb3 f2 Bc2 Nf3 Bb1 f1Q Ne5 Bge3 Qg1 Rf2 Rh1 Qh3 Rh2 Rf1 Rf2 Qh2 Qf5 Kc3 Qg5 Bc5 Qe6 Kd4 Qa2 Nd2 Rf3+ Rf2 Rf6 Nf3 e3+
b4K2/1prPN1Pb/1q1Rq1Bb/b1N1P1Nq/1n3P2/Qn2k3/1B3r2/1n5Q b - - 0 1 illegal: Other
b1KQ4/Q4bP1/1P1rB1Pn/BPbQ4/8/3q1Rb1/kb1p1Nb1/n1r3rR b - - 0 1 illegal: No possible last move, all moves rejected
r1b2r2/rP2B3/n1bPNRnK/PQ2N3/6bk/2q4p/Pr2Q1rr/NB6 b - - 0 1 legal: proof: h4 a5 b4 d5 f4 g5 c3 gxh4 f5 b5 Na3 e6 Rb1 exf5 bxa5 b4 Rb2 b3 Rc2 Bb4 cxb4 f4 Rc4 dxc4 Kf2 Ke7 Kf3 Kf6 d4 Kg5 g4 c5 e4 h5 d5 f5 e5 b2 d6 b1R e6 h3 b5 h2 e7 h4 e8Q c3 b6 c4 Be2 c2 Bd2 c1R Qb5 c3 Qd5 c2 Qe5 Ne7 Ba6 Rb2 Bd3 Na6 Qde1 Ng6 Qb5 Qc7 Ne2 Qc3 Rf1 h1R Rf2 h3 Nd4 Rh2 Ne6+ Kh4 g5 Rf8 Qe2 Rg1 b7 c1R Rf1 Ra7 Nc2 Rgg2 Na1 Re1 Qd1 Re5 Be3 Rc5 Bd4 Rc7 Bf6 Rg7 Be7 Rgg8 Qd2 Rh8 Rf2 Rhg8 Ke2 f3+ Ke3 Rh8 Qe2 f4+ Ke4 Rhg8 Rf1 f2 Bb1 Re8 Kf5 f3 Rd1 f1B Rd4+ Rg4 Rf4 f2 Rf3 Bg2 Rf4 f1B Rf3 Nf8 g6+ Rg5+ Kf4 Bh1 g7 Bfg2 Rf2 Bf3 Rf1 Rh8 g8N Bg4 Nf6 Bc6 Nd7 Rd8 Ne5 Re8 Qed3 Ng6+ Ke3 Bgf3 Nf8 B8d7 Ne6 Rhf8 Rf2 Bh5 Rf1 Rea8 Rf6 Qe1+ Qe2 Bc8 Qd5 Rgg2 Qb5 B6d7 Ke4 Bc6+ Kf5 Qg3 Nd7 Qc3 Ne5 Kg3 Kg5 Bg4 Kh6 Kh4 Qe4 Rgc2 Qec4 Rcg2 Qe2
R1r1b2n/1R2q3/1R4Pn/1N1r2bK/np2PPQ1/Nbnb2Q1/P5b1/k5B1 b - - 0 1 legal: proof: c4 a5 b4 axb4 h4 d5 e3 g5 cxd5 gxh4 Ke2 e5 d4 f5 dxe5 f4 Kd2 f3 Be2 fxe2 f4 Kf7 g4 e1N Ke2 c5 g5 b5 d6 Ke6 d7 h5 g6 b3 Nd2 Kd5 e6 b4 e7 b2 e8R b1B Nc4+ Nd3 Kf3 h3 Qe1 h4 Kg4 h2 Nd2 h3 Ne4 Kc4 Qd1 Ra5 Re6 Be7 Rc6 Nh6+ Kh5 Nb2 Rf6 Bd3 Ra6 Na4 Ra8 Nc6 Qg4 Bg5 Ra6 Qe7 d8Q Be6 Ne2 Ne5 Qg2 Nef7 Qb6 Rc8 Qd8 Nh8 Rd1 h1B Ra8 h2 Qg4 Bg2 Nd4 h1B Nd6+ Kc3 Nc2 c4 Na3 Rd5 Qg3 Bf7 Qd7 Be8 Bd2+ Kb2 e4 c3 Rac1 c2 Be3 Bh3 Bf2 Be6 Bg1 Bg2 Ndb5 Bg8 Qdg4 Bgf7 Nb1 Ka1 Rd2 Be6 Rcd1 c1N N1a3 Bg8 Rc2 Bgf7 Rc6 Be6 Rd2 Ne2 Rb6 Nec3 Rc2 Re5 Rb7 Bb3 Rd2 Rd5 Rc2 Ne2 Rc6 Nec3 Rcb6
R3N3/rkr3nb/1r6/Q1p1b3/3Q2PQ/qn2P1r1/PP3bnb/N1R2KB1 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 Rh6 dxc4 Rh4 Nh6 Rh1 Ng8 e3 b5 Na3 c3 Bc4 bxc4 Nb5 c2 Nxa7 Bf5 Nb5 Bd7 Na7 Bc8 g4 Kd7 d4 h5 g6 f5 g7 c5 d5 Kc7 d6+ Kb7 d7 c3 Nc6 f3 Na7 f2+ Kf1 h4 Qd6 f4 Ne2 h3 Qg6 h2 Qh5 Rh6 Qh3 Qa5 d8Q Ne7 g8Q Qa3 Qh5 Bf5 Kg2 f1N Kf2 f3 Qe6 Nd7 Qg5 Ne5 Qd1 N5g6 Qc4 Nh4 Qd6 Ng2 Qde6 Nd2 Re1 Bh7 Qgg6 Nf5 Qd4 Bd6 Qee8 Bf4 Qh5 Rb6 Nc8 Ra7 Qf6 Bb8 Nd4 Nb3 Kf1 f2 Ke2 f1R Bd2 c1B Qhh4 c2 Qb5 Ng7 Rd1 Bf4 Ba5 Bd2 Rac1 Be1 Bd2 Bb8 Qa5 Bc7 Qd8 Rf7 Bc3 Beg3 Be1 Bce5 Bf2 Rc7 Bg1 h1R Kf1 Rh3 Qd7 Bh2 Nd6+ Kb8 Ne8 Rg3 Ra1 c1B Nc2 Bd2 Rac1 Ka8 Na1 Be1 Qda4 Bf2 Rd8+ Kb7 Ra8 Rcc6 Q4b4 Rc7 Qd4
3Q1Q2/1Nb2n2/k1P4r/PRrr2q1/2bRnP1N/3P1np1/1n2B2b/KR3r2 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c5 b3 c4 b4 axb4 Bb2 d6 Bd4 Ra3 Bc5 Be6 c3 Bc8 Qb3 cxb3 c4 Ra4 Be3 Qd7 c5 Ra8 c6 Qd8 Bc5 dxc5 Kd1 e5 Kc1 b5 Kb2 g5 a4 g4 f4 c4 h4 e4 f6 c3+ Kc1 e3 h6 e2 h5 e1B h7 b2+ Kc2 b3+ Kd1 b4 d3 c2+ Ke2 c1R h6 Rc5 Kd1 Nd7 Na3 b1N Ra2 b2 Nf3 b3 Bg2 Bg3 Rf1 Nb6 Ra1 Bd6 Rh1 Raa5 Ng1 Bh2 Bf1 g3 Ne2 Be6 Nd4 Nc4 Be2 Nbd2 Nf5 b1N Kc1 Nc3 Rb1 Nf3 Nh4 Nb2 Nb5 Bc4 f7+ Ke7 f8R Bc7 Nd6 Ne4 Nb7 Ke6 Rf5 Qg5 Re1 Rab5 a5 Rd5 Nd8+ Kd6 Re5 Kc5 Nb7+ Kb4 Rf5 Rdc5 Rd5 Ka4 Rd4 Rd5 Rh1 Rbc5 Rd1 Kb5 Re1 Na4 Rb2 Ka6 Kb1 Bd6 Ka1 Bc7 Rbb1 Nb2 Rf1 Ngf6 Rfc1 Nd7 Rf1 Nde5 Rfd1 Rf8 h8Q Rf6 h7 Rh6 Qf8 Nf7 h8Q Rf5 Qe7 Rfd5 Rbc1 Na4 Qhf8 b2+ Kb1 Nf2 Qed8 Ne4 Rc3 Qh5 Rb3 Qg5 Ka2 b1R Re1 Nb2 Rg1 Rc1 Rd1 Rc2 Rb1 Rc1 Ka1 Rf1 Rb5
8/3rr1P1/PP1p2n1/N3nkrR/1P1b3b/5QB1/B1N3br/1KNnQqb1 b - - 0 1 legal: proof: e4 a5 b4 c5 d4 cxd4 h4 g5 hxg5 f5 c4 fxe4 a3 b5 Ra2 a4 Rb2 Qa5 cxb5 Qb6 Rb3 axb3 a4 Qd8 Kd2 Kf7 f4 Ke6 g4 h5 b6 d6 a5 h4 a6 h3 g6 h2 g7 b2 Kc2 d3+ Kc3 d2 Kc2 e3 g5 e2 g6 e1B Qe2+ Kf5 Qc4 d1N Qe2 e5 Na3 b1R Nc4 e4 Bb2 e3 Nd2 Ne7 g8N Bf2 Bf6 Bb7 Nc4 Rh5 Bh4 Ra7 Na3 Nbc6 Bg3 Rg5 Qe1 Bg7 Ne2 Bg1 Nc1 Bd4 g7 Qf8 Bc4 e2 Ba2 Ng6 Ne7+ Ke4 f5 Nce5 Qf2 e1B f6 Bd5 f7 Rd7 Qd2 Bb7 Nc6 Kf5 Na5 Bg2 Qe2 Rb3 Qd2 Re3 Kb1 Re4 Nc2 Re3 Bf4 Bh4 Qc3 Ng4 Qa1 Ree7 Bg3 N4e5 Qc3 Qa8 Qd2 Qf3 Qe1 Qf1 f8Q+ Rf7 Qg8 Rfe7 Qb3 Bge3 Rg1 h1R Qa3 Rh2 Rh1 Bf2 Qf3+ Nf4 Nd3 Bg1 Nc6 Rh3 Bf2 Bg3 Nc1 Rh7 Rh6 Rh8 Na5 Rh7 Rg6 Rh2 Rh6 Bh4 Rh8 Qb5 Bg3 Qf1 Qfe2 Nfg6 Rh5 Bf3 Qe3 Bg2 Qf3+
b2B1N1n/2Nr1n1n/1qPn1Q1R/3QP2k/1b2b3/8/P3Prp1/K1Bb2qB b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 d4 c5 b4 cxd4 Nd2 f5 gxf5 axb4 Rb1 Bc5 Rb3 Bd6 Rg3 Bf8 Rg4 hxg4 c4 Kf7 h4 g5 h5 d5 h6 b5 h7 d3 f6 Kg6 f7 b3 c5 b2 c6 b1Q Ne4 d2+ Kf2 g3+ Ke3 g2 Kd4 g4 Kc3 b4+ Kd4 g3 Nd6 b3 Kc3 b2 Rh3 d4+ Kb3 d3 Rh5 Bb7 Qe1 d1B+ Kc3 d2 Nh3 g1N Ne4 Bb4+ Kc4 Nf6 f8Q Ra7 Neg5 Qb6 Nf3 Ba8 Qf2 Rd7 Nfg5 Nf3 Ne6 Ng5 Nc7 Nf7 Qd6 Rf8 h8B Bc2 Bg7 d1B Qd5 Be4 Bg2 Nh7 Bh1 g2 Ng5 Qa1 Qh4 b1N Bf6 Nc3 Bd8 Nb5 Nge6 Qb1 Qf4 Qg1 Qf2 Nbd6+ Kd4 Qb3 Rg5+ Kh6 Rg6+ Kh5 Rg4 Nh8 Rg3 Ndf7 Rg6 Qb1 Kc4 Na6 Qf1 Nc5 Qf6 Re8 Nf8 Nb7 Be3 Nbd6+ Kd4 Bc5+ Kc3 Qb6 Bc1 Bb4+ Kb2 Ree7 Ka1 Re6 Qe7 Rf6 Qee6 Rf3 Qf6 Rf2 Rh6+
4nrnb/k1Nr1R2/p5q1/K1P3Q1/P2NQn1r/1PP1q2b/3B1rn1/5RR1 b - - 0 1 legal: proof: e4 c5 h4 b5 f4 f5 d4 g5 dxc5 gxh4 a3 b4 Bc4 e5 exf5 exf4 Ba2 b3 Qd5 bxa2 Qd3 Bb7 Qd1 Bc8 Kd2 h5 Kc3 d5 Kb4 Kd7 g4 Kc7 g5 Kb7 a4 d4 c3 d3 b3 d2 g6 a6 g7 h3 f6 h4 f7 h2 Bb2 h3 Qf3+ Ka7 Qg4 d1R Ne2 f3 Re1 h1R Qg1 f2 Rf1 h2 Ba3 Qd4+ Ka5 Qe3 Nc1 Rd7 Rd1 f1N Kb4 Rh4+ Qg4 Ng3 Nd3 Rf1 Re1 h1Q Bc1 Qc6 Qe4 Qg6 Bd2 Ne2 Nf4 Rf2 Ne6 Nf4 Rh1 Be7 f8R Bf6 Na3 Be5 Rab1 a1N Rbg1 Nc2+ Ka5 Ne1 Nd4 Neg2 Rf7 Rb7 Rd7 Qe8 Rc1 Nh6 g8Q Bh8 Qg7 Ng8 Qge7 Qg6 Rc7 Bh3 Rhg1 Nd7 Rcf1 Rf8 Qg5 Ndf6 Rf7 Rd7 Nab5+ Kb8 Qb1 Ne8 Nc7 Ka7 Qe4
5K2/q2qP1P1/n1b4q/1RQN3p/rn2r1R1/RqP2Bkr/Q2N2P1/6br b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f4 e5 Ba3 exf4 axb5 Be7 b6 Bc5 b5 Bf8 Bb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kf3 Ke5 e4 d5 b7 b3 g6 d3 c3 d4 b6 b2 g7 d2 Ba6 d3 Rh3 Qc7 Ra3 Bc5 Ra1 Bd7 Rh1 Nf6 Bc4 Ra4 Nh3 Bc6 Qe1 d1R Qf1 d2 Bg8 Na6 b8Q Nd5 b7 Ndb4 Bf7 Re1 Qf8 d1Q+ Qe2 Qdd7 b8R Qa7 Bd5 h6 Rb5 Be3 Nd2 b1Q Ra3 Qb3 Nf1 Bb6 Qa2 Re3+ Kf2 f3 Kg3 f2+ Kh4 f4 Kh5 f3 Nd2 f1R Kg6 f2 Nf4 h5 Rh3 Rh1 Rh4 Reh3 Rg4 Be3 Qc5 Re8 Kh7 Re6 Kg8 f1Q Nb1 Qf3 Nd2 Bg1 Kf8 Qe2 Rh4 Qe3 Rg4 Kf6 e5+ Kf5 Bf3 Re7 Nd5 Qh6 e6 Ke5 Rc4 Kf5 Be4+ Kg4 Bf3+ Kg3 Kg8 Rf7 e7 Rf4 Re4 Rg4 Kf8 Rgh4 Re6 Rc4 Re4 Rd4 Rh4 Re4 Rg4+
2Rrr2b/pN2n1k1/b4Q2/2P3P1/1P1b4/nKNq1BrB/3QrPB1/5b1q b - - 0 1 legal: proof: h4 c5 e4 e5 b4 b5 a4 g5 hxg5 f6 d3 c4 Bb2 cxd3 Bd4 exd4 axb5 Ne7 e5 Bg7 e6 Ng8 Ra6 Bh6 Rd6 Bg7 Rd5 Bf8 Re5 fxe5 Kd2 d5 g4 h5 c4 h4 b6 h3 e7 Kf7 e8B+ Kg7 b7 e4 c5 h2 g6 e3+ Kc1 d2+ Kc2 e2 g5 e1B Nc3 d3+ Kb3 d4 Qb1 d1B+ Qc2 d2 Ka4 d3 Nd5 Be2 Qd1 Nc6 b8Q Nd4 Nb6 Ne7 Qc2 d1R Qb7 d2 Bh3 Bf1 Qa6 Nb5 Ne2 Na3 Nc3 Qd3 Kb3 Rc1 Nc4 d1R Qd6 Rd2 Bc6 Re2 Qd2 Ba6 Na5 Re8 Nb7 Rd1 Bhg2 Rh3 Bcf3 Rg3 Qc6 Kg8 Bh3 Bg7 Qf6 Bh8 g7 Kh7 Qff4 Kg6 g8B Bd4 Bgd5 Kg7 Rg1 h1Q Rg2 Ng8 Rh2 Ne7 Bfg2 Nb5 Bdf3 Na3 Qc2 Bd2 Qd6 Bc1 Qd2 Bb2 Qf6+ Kg8 Nd8 Qe4 Nb5 Be3 Qfd6 Be5 Be6+ Kf8 Nb7 Rc8 Qa2 Rd5 Qd2 Qd3+ Nc3 B3d4 Rh6 Bh8 Beh3 Re8 Qe5 Rdd8 Rc6 Kf7 Rc8 Kf8 Qef4+ Kg7 Qf6+
n1rrqRBQ/2P5/b1bq3q/4qBQ1/5P2/N2k1q2/1P1B1bPp/1K1b3R b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 f4 b5 Ra3 f5 Nd2 g4 Ne4 Nc6 Ra1 Ne5 axb5 Nf7 Nd2 Ng5 e4 fxe4 Ndf3 gxf3 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kf7 c4 Kg6 Kc2 Kf5 g6 h5 c5 e5 c6 d5 b6 a5 c7 e3 b7 Ke4 b8Q h4 g7 d3+ Kb1 d4 Nh3 d2 Ba6 d3 Qf1 d1Q Ka2 f2 Bd2 e2 Rc1 e1Q Ka1 a4 Qb3 a3 Qe6 Qd6 Qg4 Bd7 Bb7+ Bc6 Rh2 Rc8 Ba8 Qf3 Qe6 Nf6 g8B Nd5 Bb7 Nb6 Ng1 h3 Qf7 Na8 Bc3 d2 Rb1 d1B Rh1 h2 Qa6 f1B Qa5 Ba6 Qd7 Kd3 Ne2 e4 Qg5 e3 Nd4 e2 Qdg7 Qh4 Nc2 e1Q Q7e5 Qhh6 Bd2 Qee3 Qe8 Qee5 Ka2 Bg7 Ra1 Rd8 Kb1 a2+ Kc1 Rc8 Na3 Bf6 Qf8 Qe8 Qfg7 Bd4 Q7f6 Rd8 Bc8 Bf2 Bf5+ Qfe4 Rb1 a1Q Qf8 Qa2 Ra1 Qae6 Kb1 Qee5 Qfg7 Rh7 Qh8 Rhd7 Nc4 Rc8 Ra5 Rdd8 Na3 Qed4 Re5 Qe3 Re6 Qf3 Rf6 Qee5 Rf8 Qe8 Bd7 Q4e5 Bf5+
2R2k1r/3b3r/1p4Qq/2q1bP1R/1bPQ4/PrqR4/2P2NKB/q1n1N1b1 b - - 0 1 legal: proof: g4 a5 e4 f5 b4 fxe4 d3 axb4 Nh3 c5 Ng1 c4 dxc4 Ra7 Nf3 Ra4 Ng1 Ra8 f4 h5 f5 Nf6 Be2 Ng8 f6 Nc6 Bf3 Nd4 Be2 Nf5 gxf5 Rb8 Bf3 Ra8 Bg4 hxg4 Kf2 d5 h4 g5 h5 e5 h6 d4 h7 b6 a3 g3+ Kg2 d3 Qe1 d2 Qf1 d1Q Ra2 e3 Rh3 e4 Rb2 g4 Bd2 e2 Qe1 e3 Rh6 b3 Kh1 g2+ Kh2 g3+ Kh3 Ra7 Nf3 g1Q Qf2 e1B Bb4 g2 Qe2 Q8d2 Rh5 Bd7 Nh2 Nh6 Qf1 e2 Ra2 b2 Ng4 Qc5 Nf2 g1B Qg2 Ng4 Ra1 Bg7 f7+ Kf8 Bc3 Bf6 Be5 Qh6 Nd2 b1R Nf3 Bb4 Bh2 Ne5 Ne1 Nd3 Qg6 Be5 Kg2 Rb3 Rc1 Qdd2 Rd1 Qc3 Rd2 Nc1 Rd3 Rg8 h8Q Qa1 Nf3 e1Q Qf6 Qec3 Ne1 Rh8 Qh4 Ra8 Qf4 Rh7 Qd4 Ke7 f8R Re8 Rf6 Reh8 Rc6 Kf8 Rc8+
3RNrq1/1qb2qn1/P1QNP3/3pb3/4R1bk/Pb1B2n1/P1Q1n1RK/3n4 b - - 0 1 illegal: Other
r3n3/2NP1pr1/3k1N1q/1q2rq2/nQ1B2RP/2Q1PBPK/1n3N2/3n1rb1 b - - 0 1 legal: proof: d4 b5 c4 e5 a4 exd4 axb5 g5 f4 gxf4 Nc3 d5 Nb1 d3 Qb3 d4 Qa4 Nc6 Qd1 Nb8 b4 h5 Ra6 h4 Rg6 Be6 Rg3 Bd5 cxd5 Bc5 Rf3 Bf8 g3 h3 Rf2 Rh5 Rg2 hxg2 Qd2 Rh6 Qd1 Rh8 Kf2 Kd7 h4 c5 d6 a5 b6 a4 b5 a3 b7 c4 b6 c3 Nf3 g1Q+ Ke1 a2 Nh2 a1R Ng4 c2 Rh3 f3 Na3 f2+ Kd2 Na6 b8Q Qc8 b7 Rh7 Rh2 Rg7 Nb5 Ra5 Bb2 Nc5 Bg2 f1R Qa1 Nf6 Nf2 Na4 Nc7 Re5 Bf3 Ne8 Qa3 Qg2 Qc3 Qh3 Rh1 Qe6 Rg1 Qc4 Rh1 Qb5 Ba1 Rb1 Rd1 c1Q+ Ke1 d2+ Kf1 d3 Kg2 Be7 Re1 d1N Kh3 Qh6 Rf1 d2 e3 Ndb2 Rc1 d1N Rc2 Rc1 Rd2 Rb1 Rd4 Bd8 Rg4 Rc1 Nd5 Ba5 Nf6+ Ke6 d7 Qcc5 Qc8 Kd6 b8N Qd5 Qd4 Be1 Na6 Rb1 Qe4 Qe6 Qc3 Qf5 Nc7 Rc1 Nh1 Bf2 Qf4 Bg1 Nf2 Rb1 Qa5 Nc4 Bd4 Ncb2 Qe1 Ndc3 Qd2 Rf1 Qe4 Ncd1 Qc3 Qb3 Qb7 Qc4 Qbb3 Qb5 Qbb4+
3bbr1r/r1P2bP1/Q3Nrq1/6pP/b1KBR3/B1Q3R1/5kP1/1B2qr1r b - - 0 1 illegal: No proof kernel
4q3/NrR2krn/QN4r1/1n3P2/5b1p/1P1P2P1/N1n1bKQp/1b2Rn1B b - - 0 1 legal: proof: c4 a5 e4 f5 h4 fxe4 b3 g5 Nc3 gxh4 Nb1 d5 cxd5 a4 Bb2 b5 a3 b4 axb4 a3 b5 axb2 f4 c5 g3 e5 d3 h5 d6 c4 b6 c3 d7+ Kf7 b7 c2 Ra3 c1R Nc3 b1B Nd5 h3 Ra7 h2 Ke2 e3 Qc2 h4 Qc6 e4 Qa6 Nc6 b8Q Bh6 Qc7 Nf6 Qb8 Rg8 Qa2 Rg6 Qb5 Rb8 Qa1 Nh7 Qd4 Qe8 Nb4 Rb7 Qb2 Rc3 Nh3 Nd4+ Ke1 e2 Bg2 Rcc7 Kf2 e1N Qa6 Nec2 Re1 Nb5 Bh1 Ne3 Na2 Nf1 f5 e3+ Kf3 e2 Kf2 Bf4 d8N+ Kg8 Qc2 Rcg7 Nc6 Kf7 Qb2 Be6 Qd2 Bd5 Qb2 Re7 Rc7 Bf3 Na7 Rd7 Qc2 Bh5 Qcc6 Bg4 Qg2 Bf3 Rec1 e1N Rd1 Nc2 Re1 Bd2 Nf4 Be2 Nd5 Bf4 Nb6 Re7 Rc6 Rb7 Rc7+
rn2NQ2/2n1QN2/2bp2kP/nbpRP1Qb/8/5PB1/P4K2/rRrq2r1 b - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 e5 b4 exd4 c3 axb4 Bf4 b3 Bh6 Ne7 Bc1 Ng8 e4 b5 e5 f5 Be2 b2 Bg4 b4 Bf3 b3 Be4 Bb4 cxb4 fxe4 h4 Kf7 h6 g5 h5 c5 h7 e3 b5 e2 b6 g4 b7 d3 Rh2 g3 Nh3 g2 Rh1 g1R+ Kd2 e1R Qc2 Nf6 Na3 b1B Nb5 b2 Nc7 Nd5 Ne8 Nc7 h6 Rf8 h8Q Kg6 Qb3 Rd1+ Ke3 d2 Rh2 Bd3 Rb1 Bb5 Ng5 Rf4 Rg2 Rc4 Qf8 Rde1+ Kf3 d1B+ Kg3 Bg4 f3 Bh5 Bf4 Rcc1 Qe3 Red1 Kf2 Rde1 Ra1 b1N Bg3 Nd2 Qe7 Nb3 Nf7 Na5 Rb1 Bc6 Rb2 Ra1 Rb1 Rc1 Qd2 d6 Rh2 B8d7 Rh4 Bb5 Rd4 Bdc6 Rd5 Qd7 Qe3 Qf5 Qd2 Qd3 Qe3 Nd7 b8Q Qd1 Qbd8 Nb8 Qf8 Rc4 Qde7 Rc1 Q3g5+
b2R2n1/P2N1n1b/3n3r/N5kr/3rp2b/P2pR1r1/2qPQBP1/K1Q3N1 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 gxh4 Qg4 b4 Ba6 Nxa6 c4 b3 c5 Nb8 c6 Nxc6 Qd1 Nb8 f4 Kf7 f6 Kg6 f5+ Kg5 a6 h5 f7 e5 a7 c5 a3 d5 f6 d4 Qc2 b2 Kd1 h3 Nc3 b1B Nce2 h4 Ng3 c4 Bb2 h2 Kc1 c3 Qh7 c2 Ra2 h3 N1e2 Be7 f8Q Nd7 f7 Bb7 Nf4 Qc7 Qe4 Rd8 Nd5 Rh6 Ra1 Ba8 Rf1 h1R Qe2 h2 Nb4 Nb6 Bc3 Nc8 Kb2 c1N Nc6 Bh7 Na5 e4 Re1 Rdd6 Rb1 Nd3+ Ka1 Ne5 Rb8 d3 Bd4 Qc2 Bf2 Rd4 Qe8 Bd8 f8N Nd6 Qc6 Nef7 Nd7 Rf1 Qc8 h1R Qc6 Be7 Rd8 R1h5 Qc3 Rfh1 Qb2 R1h3 Qc1 Nb5 Qf3 Bf6 Re3 Nbd6 Ne2 Rg3 Ng1 Kg6 Qf4 Bh4 Qf3 Kg5 Qe2
4bR2/nP3BQb/3Pp3/r6P/1nqQ1RKb/PBrb4/2kq1b1p/2N3Q1 b - - 0 1 illegal: No proof kernel
2Qbb3/R4N1r/QN3QK1/1n1pqP2/P5nq/1Pr1p2R/2P3b1/2Bb1kr1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 a3 b5 Bc4 b4 Bb3 Qa5 Ba2 Qd8 Nc3 b3 Nb5 bxa2 Nxa7 Ba6 Rh3 Bb7 Rh1 Bc8 Ke2 Kf7 Kd3 Kf6 Ke4 h5 f4 e5 g4 d5+ Kf3 h3 b3 h2 a4 h4 Bd2 d3 Qe1 e4+ Ke3 h3 Ne2 Bd7 Nc6 Nh6 Na5 Rh7 Nc1 Nc6 Qe2 Be7 Nc4 Nd4 Nb6 Be8 Rb1 a1Q g5+ Kf7 f6 Kg6 f7 Kf5 g6 Rc8 g7 Rc3 g8Q Nb5 Re1 h1B f8Q+ Bf6 Rg1 h2 Rg7 Bg2 Ra7 h1R Qgf7 Qb2 Qc5 Rg1 Qc8+ Qd7 Qf1 Kg4 f5 Kh3 Kf4 Bd8 Qf6 Ng4 Kg5 Qe7 Be3 d2 Nd3 d1B Bc1 e3 Ne5 Qb4 Nf7 Kg3 Qd3 Kf2 Kg6 Qe7 Qdc4 Qe5 Q4c6 Kf1 Q6b7 Qh2 Qa6 Qh4 Qe5 Rh1 Na8 Kg1 Qee6 Rc4 Bd2 Qe5 Ra1 Rc3 Qf6 Kf2 Rc1 Bdf3 Nb6 Rf1 Re1 Bd1 Bc1 Rh1 Rf1+ Ke2 Rf3 Rg1 Rg3 Kf1 Rh3
2KQ1r2/q2n2Pq/2n3r1/p1P2Q2/b4NpP/5P2/RQ3bk1/B2qBNnn b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 Ra6 f5 exf5 g4 Ra1 g3 b4 h5 Be2 Bb7 Kd2 Bc8 Bg4 Bb7 f3 Ba6 Ra3 Kf7 Re3 Ke8 Re2 Bc8 Rf2 gxf2 Bh3 Na6 g4 Nb8 g5 Nh6 Bg4 hxg4 Qf1 Ng8 Qe1 Nf6 Qd1 Ng8 Kd3 Kf7 Kc4 f1N Kd5 e5 h4 a5 c4 e4 b6 d3 f6 Kg6 f7 Kf5 g6 d2 b7 Kf4 b5 Kg3 b6 e3 g7 e2 Rh2 e1Q Nh3 Nf6+ Kd4 d5 Na3 Ra6 Nc2 Qd7 Qe2 d1Q+ Ke5 d4 Bh6 d3 Bc1 d2 Bb2 Bc5 f8Q Bf2 c5 Qb1 Bd4 d1N Ne3 Qh7 Nf4 Nc3 Qb2 Qd1 Qd8 Qf7 Kd6 Nfd7 Kc7 Nc6 b8Q Rf8 b7 Ne2 Qb1 Ng1 Ba1 Qe7 Qb2 Qf7 Qa7 Rb6 b8B Ba6 Qa8 Bb5 Kc8 Ba4 Be5 Ra6 Bc3 Rb6 Be1 Qe7 Ng6 Ra6 Rg2+ Kh3 Qab7 Ng3 Nf1 Nh1 Q7b5 Bg3 Rc2 Bf2 Qd3 Kg2 Re2 Nf6 Qf5 Qa7 Qb8 Nd7 Ra2 Nd4 Qb2 Raf6 Ne7 Nc6 Nd5 Rg6 Nf4+
4q2r/5p2/b4Rn1/Nr1n3q/B2npq2/PPNR2q1/1b1kP1PN/1Q4KQ b - - 0 1 illegal: No proof kernel forced: bxLB
1nK1nB2/3P2nq/3r1r1R/pP6/qbR2r2/np1RQb1P/Q3NP1N/3k4 b - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 h5 g4 hxg4 e4 f6 Bc4 f5 a4 bxa4 Bb3 axb3 exf5 Rh6 Qc2 Rh5 Qd1 Rh8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 h3 g5 d3 c5+ Kc4 Ke5 Kb5 Kd4 d6 e5 f6 c4 d7 g3 f7 c3 Na3 g2 Rb1 g4 Qd2 g3 Nc4 e4 Rb2 c2 Qf4 Kc3 d4 e3 d5 e2 d6 e1N Nf3 g1Q Ra2 g2 Nfe5 Qc7 d8R Bg4 Nc6 Rh6 Ra4 Bf3 Nd2 Ra6 Ba3 c1R Qe3+ Kc2 Nf1 Nf6 Nh2 Kd1 Nd4 Rc4 Ne2 Rf4 d7 Ne8 Rc8 Qc2 Rc6 Rd6 Rc3 Qf1 Rg1 Qh7 Kc5 Be7 f8Q Nc2 b5 Rab6 Re4 Rdf6+ Kd5 Bb4 Ke5 Rbd6 Rec4 Nd4 Qg7 Nf5 Qg6 Nfg7 Qc2+ Ke1 Qa2 Kd1 Rh1 g1N Rc6 Rdd4 Rb6 Qg2 Ra6 Qg4 Rb6 Rf7 Rh6 R7f6 Rc4 Be1 Bf8 Rdd6 Nd4 Ne2 Rc3 Ng3 Ne2 Nf1 Rg1 Qh4 Rg2 Nd2 Rg4 Rb4 Rgc4 Nb1 Rc6 Rbf4 R6c4 Ba8 Qb6 Na3 Qe3 Rc6 Kd5 Rcd6+ Kc5 Bc6 Kb6 Bf3+ Ka7 Rc6 Kb7 Rcd6+ Kc8 Qg4 Rc2 Bb4 R2c3 Qgg6 Rc7 Qe4 R7c6 Bc5 Rc7 Qa4 Rc6 Bb4 Rc7 Rh4 R7c4 Rhf4 Rd3+
3k2n1/PnRrBRQp/4p1Qq/4KPb1/6r1/N1N3P1/1nqbP3/q4qN1 b - - 0 1 legal: proof: h4 a5 b4 axb4 d3 g5 c4 d5 cxd5 gxh4 Qa4+ c6 Qd1 c5 g3 f5 Bg5 c4 Qd2 c3 Qc1 f4 Qd1 f3 Bf4 Bd7 Bc1 Bb5 Bg2 Bc4 dxc4 fxg2 a4 b5 f4 h3 Kf2 b3 Kf3 b2 Ke4 c2 a5 e6 a6 b4 f5 h2 c5 b3 a7 Qc8 d6 Be7 c6 Bg5 d7+ Kd8 Qd4 Na6 Bd2 c1B Be1 Bcd2 Ra5 Nc5+ Ke5 Nb7 Na3 b1Q Rc5 b2 Bf2 Qf1 c7+ Ke7 d8N b1N Nf7 Nc3 Nd6 Na4 Ne4 Nb2 Nc3 Ke8 Rd5 Qa1 Rd7 Rb8 Nh3 g1Q Rf7 Qgf1 Qg4 Ra8 Bc5 Rb8 Rg1 h1Q Be7 Qh2 Rh1 Kd7 Ng1 Qh6 Qh4 Qe8 Qb4 Rd8 Qg4 Kc8 Qh5 Qa4 Qg6 Qc2 Qg7 Kd7 c8Q+ Ke8 Qc4 Rd3 Qg4 Rd7 Bc5 Kd8 Qh5 Nf6 Qhg6 Rf8 Rh4 Ng8 Rc4 Re8 Bd6 Ree7 Bb4 Rd4 Bd6 Rd7 Rc7 Rg4 Be7+
q1nr3r/3b2r1/P2Q2RN/1k1Pn3/r2P4/1pBQ2Kb/n1Pp3n/5BNB b - - 0 1 illegal: No possible last move, all moves rejected
2Q5/b3n3/prb3RP/BN1N4/1P2Kp2/1nRrb3/bPPq1N2/2kr2rQ b - - 0 1 legal: proof: d4 b5 d5 e5 a3 b4 axb4 c6 Bd2 cxd5 Bc1 d4 g4 f5 f4 h6 Bh3 exf4 gxf5 h5 Bg4 hxg4 Kf2 Kf7 e4 Kf6 h4 Ke5 f6 g5 h5 d5 h6 g3+ Kf3 g2 f7 g4+ Kf2 a6 Ne2 g1B+ Kg2 g3 Kf3 g2 Be3 d3 Ba7 d4 Qc1 d2 Na3 d1B Qe3 d3 Nb1 d2 Qf2 Bc5 f8Q Be6 Na3 Nc6 Nb5 Ba2 Qh4 Na5 Bb6 Rb8 Rh3 Nb3 Ba5 Ba7 Rc1 Qd4 Qc8 Rb6 Rg3 Rh7 Qh1 Rd7 Rh3 Ke6 e5 Kd5 e6 Rd8 Kg4 Ke4 e7 Qe3 e8N Ne7 Kg5 Qd4 Ng3+ Ke3 Nf6 Bf3 Rd1 Bc6 Nge4+ Ke2 Rd3 Be3 Rg1 d1R Nf2 Rd6 Rc3 Kd2 Kg4 Kc1 Kg5 Qd3 Kg4 Rd5 Kf3 Qd2 Ke4 Rd3+ Nd5 Bd4 Re1 Bc5 Re3 g1R Rg3 Be3 Rg6
N1n3Bq/2R2B1p/4kPN1/r2b3n/1r2b3/r3P1Q1/2npPKnP/2Q1r1B1 b - - 0 1 illegal: No possible last move, all moves rejected
NQ6/PN1bBn1n/1p4K1/P1r1bnR1/r2qb3/P1p1B1nQ/1b4Pk/N7 b - - 0 1 illegal: Other
2KB4/2PP2k1/r5r1/4P1p1/b2rRP2/2R1Q1NQ/1N1bqrnp/b2rq2Q b - - 0 1 illegal: No proof kernel
Q2r1B2/2p2B1r/n4Pr1/R1n5/1p4RN/3rPP1n/1KP1qq2/3bBQqk b - - 0 1 legal: proof: b4 a5 g3 axb4 Nc3 h5 Ne4 f6 Ng5 fxg5 g4 e5 Bg2 Bc5 Bh3 Be3 Bf1 e4 Bh3 Bf4 Bf1 e3 dxe3 hxg4 exf4 Ra3 Bg2 Ra6 Bf1 Ra8 Kd2 Kf7 a4 Kg6 h4 Kh5 f5 b5 f6 d5 e3 b3 Kc3 d4+ Kb2 b4 a5 d3 a6 d2 a7 Qd3 Ne2 g3 Bg2 Kg4 Nf4+ Qe2 Nd3 Na6 Nf4 Rh7 Qe1 d1R Bb7 g2 Bd2 g1Q Bc3 Rd3 Nd5 Kf3 Ra2 Kg2 Bd4 g4 Qd2 g5 Bc5 g3 Ra3 Bg4 Qd1 Rd8 a8Q Bf3 Qc1 g4 Bf8 Qgf1 Rh2+ Kg1 Ra5 g2 Qe1 g3 Nf4 Bg4 Ng6 Bf3 Kb1 b2 Bd5 Bg4 Ka2 b1R Bf7 Ra1+ Kb2 Bh5 Rg5 Ra5 Rg4 Rg5 Ne7 Rgg7 Nf5 Rg6 Rg5 Rhg7 Qa1 Bf3 Rg4 Qd2 Qe1 Bd1 h5 Nh6 f3 Rh7 Bd6 Qe2 Be5 Qf2 Bc3 Qe2 Rg5 Ng4 Rh4 Ne5 Rhg4 Kh1 Nh4 Nd7 Ra5 g1N h6 g2 Qf2 Rhg7 h7 Nh3 h8B g1Q Be1 Rh7 Bg7 Ndc5 Bf8 Qfg2 Qf1 Qg3 Bd6 Qgf2 Bf8
k1n5/1n5p/N3Q3/1K6/r1rbPp1B/P1r1P1Qr/1PRnRqRn/2Nq4 b - - 0 1 illegal: No proof kernel
1QN2b2/rP2P3/3n2r1/1p1pn3/4R2K/1nQ1nQ1P/2PB1rB1/2Nr1kbb b - - 0 1 illegal: No possible last move
3RR3/1Q5p/3P1P1q/nN2bbPP/Q1n1b3/1Q2NBnn/2p1b1K1/2kb3n b - - 0 1 legal: proof: d4 a5 c4 d5 b4 dxc4 f4 axb4 d5 e5 Be3 g5 Bd4 exd4 g3 b5 Na3 f5 Qb1 Be7 Qd1 Nh6 Nb1 Rg8 Bh3 g4 Bf1 Rg5 fxg5 f4 Qd2 f3 Qd1 Ra6 Nc3 Rf6 Nb1 Rf4 gxf4 Bf8 Qc2 Bc5 Qd1 Be7 Kf2 Kf7 e4 Kg6 a4 c5 h4 c3 e5 Kf5 d6 Ke4 f5 c4 h5 d3 e6 g3+ Ke1 Ke3 a5 c2 a6 c1N a7 b3 a8Q b2 Bh3 d2+ Kf1 b4 Qe1+ Ne2 Ra4 d1B Bg4 c3 Ra6 b3 Ra4 f2 Qa5 Nc6 Ra1 Qf8 Qb4 Na5 Rh4 Bf6 e7 Be5 f6 Bf5 Bh3 Ng4 e8Q Qh6 Na3 b1N Qc4 b2 Kg2 Nd2 Nf3 b1B Qb3 Ndc4 Qea4 Bbe4 Nc2+ Kd3 Ne3 f1B+ Kh1 Nd4 Ra3 Bfe2 Kg2 Nf2 Bg4 Nh1 Qf1 Bb7 Ra1 Bbe4 Qb7 c2 Qe1 Ndb3 Qeb4 Nbd2 Q4b6 Nf1 Ra2 Bg6 Qbb5 Bef5 Nd4 Kd2 Bf3 Kc1 Qbb3 Be4 Nb5 Bgf5 Kg1 g2 Ra3 Bc6 Re4 Nfg3 Kh2 g1N Kg2 Nh3 Ra2 Bf4 Re8 Bce4 Qab4 Nc6 Raa8 N6a5 Rad8 Be5 Q4a4
rn1R3K/1B6/1bp4k/1qbPr3/6b1/Q1Ppp3/RQq2P1P/1qBNQn2 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 a4 b5 axb5 Rh5 Nc3 Rh6 Nb1 Rh8 d4 c6 d5 c5 Qd4 cxd4 Nd2 Rh7 Ndf3 Rh5 Ne5 Rh8 Nc6 dxc6 Kd2 Kf7 Kd3 g5 Ke4 Kg7 Ke5 a5 b4 g3 b6 a4 f6+ Kh6 f7 a3 b5 g2 b7 a2 b6 d3 Bd2 Bg4 Be3 Nf6 Bc1 Nh5 Ne2 g1Q Bh3 Ng3 Nc3 Qd1 Re1 Nf1 Re2 Qd2 Nd1 e6 Rb1 a1B+ Rb2 Qd6+ Kf6 Qc5 Re4 e5 Ra2 Bd4 c3 Rg8 Re1 Bd6 f8Q+ Rg7 Re2 Qb5 Qe7 Bc7 Qa3 Bc5 Re1 e4 Re2 Bh5 Bc8 g4 Re1 g3 Re3 Na6 b8Q g2 b7 B7b6 Qe5 g1Q b8Q Rg5 Bb7 Bg4 Kf7 Rf5+ Kg8 Qc2 Kh8 Qh1 Rf3+ Rg5 Rf8 e3 Qe4 Re5 Rd8 Qg1 Qeb4 Qh1 Qa7 Nb8 Qbb2 Qe4 Q7a5 Qeb4 Q5a4 Qbb3 Qe4 Qb1 Qf3 Q3a4 Qfe2 Qac2 Qe1
2qn3N/N1n1k2p/4pBb1/rPn3p1/1P2BqrP/6QN/P1b1QR2/1b4K1 b - - 0 1 legal: proof: e4 a5 b4 e5 f4 f5 Ke2 a4 Kd3 Bd6 g3 exf4 e5 f3 e6 dxe6 Kc3 f4 Na3 f2 Rb1 f3 Ra1 Bf4 gxf4 b5 Kb2 Qh4 Rb1 Ra7 c4 Qg5 cxb5 Qd8 Kc3 Ra8 Rb3 axb3 h4 c5 d4 b2 Kd3 b1B+ Ke3 c4 f5 c3 d5 c2 f6 Nh6 f7+ Ke7 f8N Ra5 Nh3 Na6 Nc4 Nc7 Nd6 Bd7 Bb2 c1N Qe2 Nd3 Bg2 f1B Rh2 f2 Be4 Be8 Kf3 Nf7 Ng6+ Kd7 Rg2 Nc5 Nc8 Rg8 Na7 Qc8 d6 Nd8 Nh8 Bg6 Bf6 Ke8 d7+ Kf8 Qb2 Bfd3 Qe2 f1Q+ Rf2 Qc1 Kg2 Qf4 Kg1 Bdc2 Qe3 Qf5 Qg3 Qf4 Bd4 Ke7 Bc3 Rf8 Bd4 Rf5 Be5 Rg5 Bd4 Kf8 Bf6 Rg4 Rf1 Bf7 Re1 g5 Rf1 Ndb7 d8Q+ Be8 Qd1 Nd8 Qe1 Bg6 Qe2 Ke8 Rf2 Kd7 Be5 Ke7 Bf6+
6n1/bqBrP3/1b1p2r1/2k1bNp1/3P1nP1/1r1RN1K1/2pQ2P1/1QNbB3 b - - 0 1 illegal: No possible last move, all moves rejected
1r1k1B1n/1qp5/2bR1n2/2Pnp1Rn/1pP2b2/Br3QPN/4Q1QP/K1b5 b - - 0 1 legal: proof: d4 a5 c4 f5 b4 axb4 e4 g6 exf5 d6 f6 Qd7 Be3 Qf5 Bc1 Qc5 dxc5 Ra5 Bh6 Ra4 Bc1 Ra8 f4 Kd8 f7 Kd7 f5 Ra7 f6 Ra8 Bd3 h5 Nd2 h4 Bf5+ gxf5 Nf1 h3 g3 Bh6 Ne3 Bf8 Ng2 hxg2 Kd2 e5 Kc2 b5 Kb2 b3 a4 f4 a5 d5 a6 d4 a7 f3 Rb1 f2 Qf1 d3 Ka1 b2+ Ka2 d2 Nf3 d1N Ng1 Nc3+ Kb3 Nc6 Qe1 f1N Kc2 Rb8 a8Q Ne4 Qe3 Bb7 Ne2 g1B Qa7 Kd8 Ra1 Bh6 Kb1 Nce7 f8B Bc6 f7 Bf4 Ra6 Nef6 Qb7 Ng6 Qf3 Bf2 Ng1 B2e3 Nh3 Nh5 Qe2 Ngf6 Qa8 Bd2 Rg1 Ne3 Rf1 Ned5 Rf3 Bfe3 Rf5 Bf4 Rg5 Rh6 Qb7 Nh8 Qa8 Bd7 Re6 Bc6 Qa3 Rg6 Qaf3 Rg8 Qfg2 Rb7 Ka2 b1Q+ Ka3 Qe4 Ka2 Qf3 Ba3 Bc1 Ka1 Rb8 Bd6 Re8 f8Q b4 Qg7 Rf8 Qf7 Ne4 Qg6 Ba4 Qh7 Bfd2 Qg7 Ne3 Qg6 Rf5 Kb1 Nef6 Qg1 Qb7 Ka1 Bc6 Bf8 Rf3 Qgg2 Ned5 Qf5 Rb3 Qff3 Bf4 Rd6+
1KBnb1k1/2pN1rr1/p2rrQb1/P1P2n2/Q2P1nN1/1P6/3qRR1p/7Q b - - 0 1 legal: proof: h4 g5 e3 gxh4 d3 b5 c3 Na6 c4 bxc4 dxc4 Nb8 Bd2 d5 Qg4 d4 Qh5 d3 Bc3 Bg7 Qd1 Bf6 Be5 Bg7 Bh2 Bd4 exd4 f6 Be5 fxe5 Kd2 Kf7 Kc3 h5 Kb4 d2 Kc5 h3 f4 a6 a4 h4 g4 e4 g5 e5 a5 h2 b3 e3 f5 e4 f6 h3 Ra2 e2 Qc1 d1R Qb2 e1N Na3 e3 Qg2 e2 Nf3 Rh7 Nc2 Bd7 Ne3 Nh6 g6+ Kg8 g7 Nf5 Ng4 Be8 Nfe5 Nc6 Nd7 Nd3+ Kd5 e1R c5 Re7 Rf2 Rf7 Be2 Rd2 Re1 h1B Bd1 h2 Ree2 Rh6 Ke6 Rg6 Qf1 Bg2 Qh1 Qb8 Bc2 Qb4 Bb1 Bh3 Kd5 Nd8 Bc2 Ne6 Kc6 Ndf4 Bd1 Qc3 Kb7 Rd8 Bc2 Rd3 Bb1 Rg3 Ka7 Nh6 Bf5 Qd2 Kb7 Rb8+ Ka7 Rb6 Ka8 Rd6 Kb8 Nd8 Be6 Bg2 Bf5 Be4 Be6 Bd3 Bf5 Re7 f7+ Kh7 f8Q Rf7 Qe7 Kg8 Qf6 Re3 Be4 Rg5 Bb7 Ree6 Bc8 Bg6 Nge5 Rg2 Ng4 Kh7 Ne3 Nf5 g8Q+ Kh6 Qf8+ Kh7 Ng4 Rg1 Qh6+ Kg8 Qh3 Rg2 Qd3 Rg3 Qb5 Bh7 Nge5 Rgg7 Qa4 Bg6 Ng4
b3QR2/pQk3p1/Pb1q2PP/r1p1n1N1/3PB1b1/6n1/3K1nrR/B2B3b b - - 0 1 legal: proof: b4 c5 bxc5 d6 c6 Bf5 Bb2 Bg4 Bc1 Bc8 e4 f5 exf5 Nh6 c4 Ng8 c5 dxc5 f4 e5 g4 exf4 Nc3 Na6 Ne4 Nb8 g5 h6 Nf2 h5 Ng4 hxg4 a4 b5 d4 f3 h4 g3 g6 g2 c7 Kd7 f6 b4 f7 b3 a5 b2 h5 b1B a6 f2+ Kd2 Bd6 f8Q Nf6 Rh2 Nc6 Ne2 g1N Qg8 Be4 Ng3 Ne2 Rh1 Ng4 Qdb3 Rb8 Qbd5 Nce5 Rh4 Bh1 Bb2 Rb5 Rh2 Ra5 Ne4 Ng3 Be2 f1B Bd1 Bfg2 Ng5 Nf2 Ra3 Bf3 Ba1 Bb7 c8B+ Kc7 Rd3 Ba8 Qe8 Bg4 Bf5 Be7 Rc3 Qd6 Be4 Bd8 h6 Rf8 Rc1 Rf3 Rc2 Re3 Ra2 Re1 Ra3 Rg1 Rf3 Rg2 Rf8 Qb6 Qee6 Qd6 Qg8 Kd7 Qh8 Bb6 Qhg8 Kc7 Qgf7+ Qe7 Qe8 Qd6 Qb7+
1rN1R2q/1r2N1p1/Rn4Bb/PN3PP1/2n1k1K1/1r1b2Q1/Pp4p1/q3r1Q1 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 b4 c5 bxa5 cxd4 g4 h5 Bf4 d5 cxd5 h4 Bg3 hxg3 Ke2 Kd7 f4 Kd6 h4 b5 f5 Ke5 d6 d3+ Ke3 b4 h5 b3 h6 d2 h7 b2 d7 g2 Qa4 d1Q Nc3 Ra7 Nh3 Rb7 Ba6 Nf6 Ng5 Nc6 Bb5 Nd5+ Kf2 e3+ Kg3 e2 Rh5 e1R Rh6 Nb6 Qa3 Re3+ Kh4 Kf4 Nf7 Ne5 Nd6 Nec4 Qb3 Qe8 d8N e5 Nc6 e4 Ne7 Rf3 Bd7 e3 Ncb5 e2 Qa3 Qg1 Re1 Rb3 Qc5 Qd8 Be8 Bd7 Nc8 Ke4 Bg6 Be8 Rb1 e1R Rd1 Rg8 h8Q Qf1 Qg1 Bd7 Nc7 Bb5 Qh7 Qe8 Rd8 Ba6 Nb5 Rh8 Ng8 Bd6 Nge7 Bf4 Qg8 Qf8 Qf7 Qg8 Re8 Qh7 Qf8 Rg8 Qf6 Qh8 Qd6 Bd2 Qg3 Be3 Rh7 Bh6 g5 Rf8 Kg4 Rg8 Nca7 Rf8 Ra8 Rfb8 Nac8 Qd3 Ra7 Qb1 Ra8 Qa1 Ra7 Qg8 Rh8 Qh7 Re8 Qh8 Nd4 Na3 Ra8 Bd3 Nb5 Nac4 Ra6
Qk3B2/2p3pr/n1q1b1P1/qQ3b1P/b5pP/R1PNB1B1/2N3r1/bK5n b - - 0 1 illegal: No possible last move, all moves rejected
2n3N1/n1rQ1p1P/RQp1b1pR/2qP4/r2Pnk1K/1PBqq1Q1/1rB5/8 b - - 0 1 legal: proof: c4 d5 cxd5 e5 d4 h5 f4 exf4 g4 hxg4 Nc3 b6 Na4 Bf5 a3 Bb4+ axb4 Be6 b5 Bc8 Nc5 bxc5 Kf2 Ke7 h4 Kf6 e4 a5 b6 f3 Kg3 a4 b3 f2 b7 c4 e5+ Kf5 e6 c3 e7 c2 e8Q a3 h5 a2 h6 g6 Qee2 Nc6 b8Q Qe7 Qa6 Na7 Rb1 a1Q Qab7 Qc3+ Be3 c1R Qb5 Qd3 Ne2 Qc5 Q8b6 Ne7 Kh4 g3 Nc3 g2 Qe1 g1Q Bd2 Be6 Qd7 Nec8 Ne4 c6 h7 Rc2 Ra1 Rb2 Bg2 f1N Qg3 Qge3 Bc3 Nd2 Nf6 Ne4 Ra6 Re8 Ng8 Re7 Qdd8 Rb7 Qd7 Rc7 Bf3 Qb4 Bd1 Qc5 Qh3+ Kf4 Bc2 Qde2 Qg2 Q2d3 Qg3+ Kf5 Kh3 Rb8 Qa5 Rb4 Qb6 Rc4 Kg2 Rb4 Rh6 Ra4 Kh3 Qd1 Kh4 Qdd3 Qe1 Kf4 Qg3+
8/P1PNp1PK/Pq3B2/1p4N1/1brQp1r1/kbq3nB/Q1R4N/r2qb3 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 dxe4 a4 c5 g4 f5 Ra2 fxg4 h3 g5 Ba6 g3 Bf1 Nc6 Rb2 Ne5 Rb4 cxb4 h4 g4 Bd3 Nf7 Bf1 Ng5 hxg5 Qb6 Bh3 Qc7 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kd5 a6 b5 a7 h5 g6 h4 Kg5 g2 f4 g3 a5 b3 f5 h3 f6 h2 f7 b2 Nf3 g1B Bh3 Kc4 d5 Kb4 c4 g2 c5 Bf2 d6 Be6 d7 Bg7 f8N Nh6 Nbd2 b1Q Nf1 Qc2 Bb2 Be1 Qb1 Qb6 Bf6+ Bb3 d8Q g1R+ Kh5 Ka3 a6 Rc8 c6 Rg8 Nd7 Nf5 Ng5 Rg4 Rg1 h1Q Nh2 Qc3 Rg2 Bh8 Re2 Ng3+ Kh6 Qhf3 Rg2 Qd1 Kh7 Rc7 Rc2 Rf8 Be5 Rf1 Bd4 Be5 g7 Bd6 Bf6 Bc5 Ne5 Bb4 Qd4 Rd7 c7 Rg1 Qf2 Rd4 Nd7 Rc4 Qd4 Rg2 Rc1 Ra2 Rc2 Ra1 Qa2+
rBQ1N3/NnrP4/2R2P1r/pb4Pp/1Bn1Bp1r/2q3PQ/4qk2/1K5n b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 dxc4 Ne2 g6 Ng1 g5 g4 Nd7 b4 Bh6 f5 Nb8 Ra3 Bg7 Rf3 Be5 Rf2 Bg3 hxg3 Qd7 Rf3 Qd8 Rf4 gxf4 d4 Kf7 Kd2 Kf6 Kc2 Kg5 d5 a5 d6 c5 d7 h5 b6 e5 b7 c3 f6 c4 b5 e3 b6 e4 Qe1 e2 Be3 Qe8 Nd2 Nc6 b8Q Ba6 b7 Nge7 Kb1 c2+ Ka1 c1N Qe5+ Nf5 b8B c3 Rh4 c2 Bba7 Nd8 Qd4 Nd6 Qc4 Rh6 Qc8 Nc4 Bg2 Nb7 Qf1 e1R Rh1 Bb5 Bec5 e3 Be4 e2 Qh3 Nd3+ Ka2 c1R Bb4 Nf2 Bb8 Rf1 Rh2 e1Q Ne2 Rg1 Nd4 Rh1 Nc6 Qe3 Rg2 Qc3 Na7 Rh2 Rg1 Nh1 Rf1 Rc2+ Kb1 Qee5 Rc1 Qe7 Qg2 Rh4 Qh3 Qe6 Bd5 Qe2 Ne4+ Kg6 Nd6 Kg5 Ba3 Rd2 Bg2 Rd5 Bb4 Rc5 Ne8 Rc7 Qh2 Kg6 g5 Kf5 Be4+ Kg4 Bh7 Kf3 Qh3 Kf2 Be4 Rh8 Rd1 Rh7 Rd6 Rh6 Rc6
Qb3bBr/1QP2p2/KB1PpPq1/1N6/kq4R1/1NBp4/1q2Pq2/1r1n1b2 b - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 g5 b4 b5 axb5 gxh4 d4 c6 d5 Be6 d6 Na6 Ra2 Bh3 Rd2 Nc5 bxc5 Bc8 Rd5 cxd5 Kd2 Kd7 Kc3 a5 g4 h5 f4 h3 f5 d4+ Kb2 a4 Ka3 c3 Kb4 h2 f6 c2 g5 h4 g6 d3 g7 h3 b6 Kc6 b7 a3 b8B a2 Bh6 c1B Ba7 a1Q Be3 Qb6+ Kc4 Qab2 Nf3 Nh6 g8Q Nf5 Rg1 h1Q Bh6 h2 Nc3 Qg2 Bd2 h1Q Qb3 Qh6 Nb5 Rb8 Bc3 Qf2 Rg4 Qg6 Bh3 Be3 Nd2 e6 Qb4 Bb7 Nb3 Ba8 Na1 Qb7 Bb6 Bd4 Qb3 Ne3+ Kb4 Nd1 Ka5 Kd7 Qb4 Qbe4 Ka6 Kc6 Nb3 Be3 Qa5 Qb4 Qh7 Kd7 Qh5 Bg2 Qd5 Bf1 Qa8 Rb7 Qa2 Kc6 Qb1 Kd5 c6 Bc5 c7 Kc6 Ba5 Ba7 Bb6 Bb8 Rf4 Qh6 Bf5 Qg5 Bh7 Qg6 Bg8 Bg7 Ba5 Bf8 N3d4+ Kc5 Rh4 Kc4 Rg4 Kc5 Bb6+ Kc4 Nf5+ Kb3 Nfd4+ Ka4 Nb3 Qc5 N5d4 Qa1 Nc1 Qb3 Ba7 Qcf5 Bc5 Qf2 Qb2 Qba3 Qb6 Q1a2 Qba7 Rb2 Ncb3 Qb4 Bb6 Rb1 Q7b7 Qb2 Nb5
qk6/qPPK2QP/1Bpb3N/1p1BN2Q/8/1n1RQ1r1/qrP1qp2/2r3n1 b - - 0 1 illegal: No possible last move
8/1bQ2rR1/N2Pr2p/rnbp1P1N/3N2p1/1Q3r2/P1nP2Bn/kbK1R3 b - - 0 1 legal: proof: c4 d5 e4 f5 exf5 a5 b4 axb4 c5 Qd6 cxd6 Ra5 Qf3 Ra3 Qd1 Ra8 h4 Kd7 g4 Kd8 h5 Ke8 h6 gxh6 g5 Bd7 g6 Ba4 Bb2 Bd7 Bf6 Bc8 Bg5 hxg5 f4 Kd7 f6 Kc6 f5 Kc5 f7 b5 g7 e5 Bc4 h6 Rh5 b3 Ne2 Kb4 Rh2 c5 Nbc3 Ka3 Rc1 Kb2 Ng3 e4 Rh4 b4 Nh1 e3 Nb1 e2 Nf2 Nc6 Rc2+ Ka1 Nd3 b2 Ne5 b3 Rc1 Ra5 Rc3 Nb4 Rf4 Rh7 Rg4 Nc2+ Kf2 e1R Nd7 Re6 Rf3 Nf6 g8N Bb7 Re3 Bg7 Bf1 c4 Ke2 c3 Na3+ b1N f8Q b2 Nb5 Bh8 Bh3 Rf7 Nc5 Bg7 Rg3 Ng4 Qb8 Bd4 Qc7 Nh2 Na6 Bb6 Rg1 Bc5 Bg2 g4 Re1 Nb4 Re4 c2 Nf6 c1R Nd4 Na3 Qb3 b1B Nh5 Rc3 Kd1 Rf3 Kc1 Nb5 Re5 Nc2 R5e3 Ref6 Re7 Re6 Rd7 Rff6 Rh7 Rf7 Rg7
Qb5n/3Bn2P/RBR1b3/1P4r1/r1r3nk/1ppp4/rN2PP1b/Q1RK4 b - - 0 1 legal: proof: d4 e5 c4 exd4 g4 f5 b4 h5 gxh5 b5 Nd2 a5 Ndf3 Qg5 Ne5 axb4 Qd3 b3 Ng4 fxg4 Qc2 b4 Qd1 Qb5 cxb5 Ke7 Qd3 Kf7 Qd1 Ke8 a4 Ke7 h4 Kf6 h6 d5 h7 c5 a5 g5 h5 c4 a6 b2 a7 b1R h6 d3 Bg2 d2+ Kf1 g3 Bf3 g4 Ra3 Kg5 Qe1 c3 Nh3+ Kh4 Ra2 d1N Bf4 d4 Be3 d3 Bb6 g2+ Kg1 b3 Bc7 Ne3 Bb7 Bd6 Qd1 Nc6 Ra6 Nce7 Bb6 Be6 Bc6 Ra1 Bd7 Ra4 Qa1 Rc8 a8R Rcc4 Rc8 Bb8 Rc6 Ng6 Nf4+ Kg5 Qa2 N8e7 Nd5 Rd8 Qa1 Nh8 Nb4 Ra2 Nc2 Rca4 Na3 Rc8 Nc4 Rc7 Kh2 Kh4 Rc1 g1B+ Kh1 g3 Nb2 Ng4 Kg2 Bh2 Kf1 g2+ Ke1 Nhg6 h8Q Rc8 Qd4 Nh8 Kd1 Rc7 Qe3 Rc8 Qd2 g1R+ Qe1 Rg2 h7 Rg3 Qh1 Rc7 Rd6 Rcc4 Qa8 Nf6 Bc8 Rg5 Rc6 Ng4 Bd7
nK3NR1/3Q2P1/2p2q2/Bnr3Nr/n2kpp2/PP2n3/1P1rQrRb/3R4 b - - 0 1 illegal: No proof kernel
q3k1QK/bR1bPr1B/3P1r1p/2b3rQ/2P3Q1/1n1rP1p1/1B2p3/3bR2N b - - 0 1 illegal: No proof kernel
3R1b2/1pP4R/P1nr1b2/1p1P4/1pR1r1q1/1kBQ2r1/1NPbpK1n/4Q1N1 b - - 0 1 illegal: Other
1K3nq1/4q3/r4PP1/1bp1p3/1NrPk2N/RP2NR1q/1p1nQp2/2B1bQ2 b - - 0 1 illegal: No proof kernel
1B1b1nbK/1P1Q2N1/5p2/3Q4/p3N3/qPBP2bp/k1nPpQ2/b1rr1R2 b - - 0 1 illegal: No proof kernel
1R1bbK1Q/p4P1P/1N2p2B/b2nrB2/R7/QPPpqQ2/1q1p4/1b1r1k2 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 gxf4 d4 cxd4 Nc3 f5 Nb1 f3 Ra3 f4 Ra6 Nf6 Ra1 Ng8 g4 h5 g5 Na6 Nc3 Nc7 Nd5 Ne6 Ne3 Ng7 Ng4 Nf5 exf5 hxg4 Kd2 Kf7 Kd3 d5 h4 e6 h5 f2 c3 f3 g6+ Kf6 h6 Ke5 g7 g3 b3 g2 b6 Nf6 g8Q Bb4 b7 Qb6 Bd2 Ba5 Qg5 Bd7 Rb1 Rad8 Rb2 Be8 Ne2 g1B Bh3 f1B Ra2 f2 Ra4 Bg2 Rh2 f1Q b8Q+ Rd6 Bg4 Qf2 Nf4 Bf3 Be3 Qb2 h7 Rg8 Rd2 Bf2 Qh6 Bh4 Qf8 Rg5 Qa8 Rd7 Qa3 Qc5 Qh1 Bd1 Qf3 Bc2+ Ke2 Bb1 Bh3 Ng8 f6 Ne7 f7 Qb6 Bf5 d3+ Kf1 d4 Nd5 Qc5 Nb6 Nd5 Qc8 Rh5 Kg2 Bd8 Bh6 Rg5+ Kh3 Rd6 Qh1 Kf4 Kh4 Ke3 Rd1 Ke2 Qh3 Rg3+ Kh5 Re3 Kg6 Re5 Kg7 Kf2 Rd2+ Ke1 Rg2 Kf1 Qa8 d2 Qh5 d3 Kf8 Qe3 Rg8 Rc6 Qg4 Rc4 Qg7 Rh4 Qh8 Rh1 Rgg4 Nb4 Rc4 Nd5 Rc8 Kg2 Rb8 Rd1 Qb7 Kf1 Qc6 Ne7 Qe4 Nd5 Qf3+
1k2r1bR/1p5p/P5bP/2pP4/4NR2/p1QPBrpN/K1N5/n1Qrr1q1 b - - 0 1 illegal: No proof kernel
8/R2Npb2/1K1Pk1bB/pB5R/5bPP/2pQ3b/pqn1PQp1/1b3Qr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 c4 d5 f5 h4 Nc3 g6 Ne4 gxf5 Ng3 hxg3 Bh3 f4 Bg2 Rh6 Bf1 Rh8 d3 c5 Ra3 a5 Ra2 Nd7 Ra1 Nb6 Bd2 d4 Bc1 Nd5 cxd5 c4 Nh3 c3 Ng1 Ra7 Ra2 Rc7 Ra1 Rc4 dxc4 Ba6 Qd2 Bb7 Qd1 Bc8 b4 Kd7 h3 f5 b5 d3 d6 a3 c5 a2 b6 f3 b7 f4 b8Q Qb6 c6+ Ke6 c7 Nh6 Qd2 f2+ Kd1 f3 Rb1 Qb2 Qa7 Nf5 Bg2 f1B Qf2 Bh6 Qde1 Bd7 c8Q d2 Qa6 Be8 Qd3 Bg6 Rh2 Rb8 Bh1 Bg2 Qef1 Qa1 Kc2 Bf4 Rb6 Ne3+ Kb3 Nc2 Ka4 d1B Ra6 Rb1 Ra7 Qb2 Bd2 Be5 Bh6 Bf4 Qb6 f2 Nf3 Bf7 Ne5 Be4 Nd7 Beg6 Bc6 Rc1 Bb5 Ra1 Qg2 f1B Qgg1 Bg2 Qf1 Rc1 h4 Bh3 Rf2 g2 Rf3 Be5 Rf5 Bf4 Qbf2 Be8 Q1g1 Bef7 Ba6 Nb4+ Kb5 Bc2 Kb6 Bb1 Rh5 Nc2+ Bb5 Rf1 Qff3 Rd1 Qgd4 Rh1 Qf1 Rg1 Qdf2
1K5k/3P1p2/p2NB2P/2rbQ1Qq/Nbq2p2/2n1QP1q/ppP5/1R1qR3 b - - 0 1 illegal: No proof kernel
b1bB1n2/rPR1r1P1/3Rp1q1/PQNk1B2/2n2K2/br1qP3/1r2Qn2/Q6r b - - 0 1 illegal: No proof kernel
N6r/P2r3r/KpB2P2/B4b1q/q2RrQn1/bq2N3/QPn2P2/b1rB1k2 b - - 0 1 illegal: No proof kernel
2r1bB2/8/8/nnQ1P1r1/1QP2qbb/Qr1N1rRp/r2knP1P/R2rN2K b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 e5 g5 e4 g6 fxg6 e3 g5 Bc4 g4 Bd3 exd3 Kf1 Kf7 Kg2 Kg6 b4 Kf5 c4 Ke4 b6 h5 b5 a5 b7 d5 b6 g5 Qc2 h4 Qc3 d2 Ba3 d1B Qb4 Kd3 e4 h3+ Kf1 a4 e5 g3 Qe7 g2+ Ke1 g4 Bc1 g3 Bd2 a3 Bf4 a2 Nf3 g1N Kf1 g2+ Ke1 Nf6 Qf7 Bg4 Qd7 Ne8 Qg7 Qh4 Nc3 Be7 Ne2 Ra3 Rb1 a1R Bg3 Nc6 b8Q Nd6 b7 Rb3 Qc7 Na5 b8Q Nb5 Qbf8 Ra2 Qfb8 Rc8 Nc3 Ne2 Bf4 Bd8 Rf1 g1R Bh6 Qg3 Qf6 Qf4 Qfd6 Bh4 Qa3 Bh5 Qc6 Rg5 Ra1 Be8 Rg1 Kc2 Kf1 d3 Qbb6 d2 Na4 d4 Nb2 d3 Qcc5 Nbc3 Qbc6 Nd4 Qca4 Ncb5 Ne1+ Kc3 Bf8 Bg4 Bh6 Ne2 Rg3 d1R Rg2 Rc1 Bf8 d2 Rg1 d1R Rg2 Kd2 Rg3 Nec3 Kg1 Ne2+ Kh1 Rf3 Nd3 Rb1 Qd5 Rb4 Qc5 Rb3 Q4b4+
1Qr2nb1/R5rR/1bqPP3/nPbp1r2/N4br1/6b1/k2PQB1r/3K1N1R b - - 0 1 illegal: No proof kernel
3n4/2r1k2n/Q3pNP1/1b2P3/qP2P1KN/b2nQ1Br/1bbRB1Qb/2b2q2 b - - 0 1 illegal: No proof kernel
1B1qrq2/Pq1bQ1pK/3Rq3/1R4PP/P1Q2r1q/B3b2k/2r1nN1n/3q3B b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 bxa5 cxd4 Nd2 Nf6 Ndf3 Ng8 g5 h6 Ne5 h5 Ng4 hxg4 Kd2 Kf7 a4 Kg6 h4 Kf5 f4 d5 c4 b5 a6 e5 a7 d3 Ke3 b4 c5 g3 c6 d4+ Kd2 g2 c7 e3+ Ke1 b3 h5 d2+ Ke2 Kg4 Kd3+ e2 Ke4 d3 f5 b2 f6 b1Q f7 Nh6 Nh3 g1Q Qe1 d1R Bg2 Rd2 Qd1 Bd7 c8Q Qb7+ Qc6 Qc5 Ng1 Rc2 Bf1 d2 Nf3 e1Q+ Qe2 d1Q Qe3 Qh4 Rb1 Qa3 Bd3 Bc5 Ne1 Re8 f8B Bd4 Qd5 Nc6 Bd6 Qc5 Bb8 Qf8 Bb5 Bc5 Ba3 Nd4 Bf1 Ne2 Nd3 Bb6 Rb5 Bd4 Qd2 Be3 Qb4 Kg3+ Nf4 Ng4 Bg2 Nh2 Qe7 Kg4 Rf1 Kg3 Bh1 Kg4 Nd3 Kg3+ Rf4 Kh3 Bbd6 Rac8 Bb8 R8c6 Qdf7 Re6+ Kf5 e4 Rf1 Re5+ Kg6 Rf5 Re1 Rf4 Kh7 Bd2 Nc5 Nc3 Be5 e3 Ne4 e2 Qd5 Rf3 Rf1 e1Q Bb8 Qee2 Rf2 Rf4 Qc4 Qeg4 Rg2 Be3 Rd2 Qe6 Rd6 Ne2 Nf2+
Kb4b1/P4Q2/q2qr3/1P1n1q1p/Qk1PB2n/Nn1n1n2/2nrR2P/1NB4N b - - 0 1 illegal: No possible last move
4N2r/b1B1Q3/1Q1qqq2/Nb1k1P2/Bn1b4/p1b1rP2/P2N1PKR/n3q1b1 b - - 0 1 illegal: Other
3Q2q1/PBP1pQPN/1rb1kb1q/r3P1Rb/1Rn3qN/nb3q2/5q2/K2R4 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 g5 fxg5 h6 g6 Qa5 g7 Qd8 g4 Qb6 g5 Qc7 g6 Qd8 Bg5 hxg5 Kd2 d5 Kc1 Kd7 Kb2 b5 h4 f5 c4 d3 e4 f4 a4 d2 h5 f3 h6 b3 c5 g4 e5 b4 c6+ Ke6 a5 f2 h7 g3 a6 d4 c7 d3 Rh6 g2 Rh4 Nh6 g8R Nf7 Qe1 d1B Nh3 g1Q Ra4 d2 Bb5 f1Q Bc6 Qf3 Ra5 Bb7 Nc3 Qgf2 Qf1 Bg7 Rf4 Nd7 Ng1 Bf6 g7 Nb6 Be4 Bc6 Rd5 Nc4+ Ka1 b2+ Ka2 b1B+ Ka1 b3 Qe2 Ba2 Rf5 Nfd6 Rg5 Nb5 Qf1 Nba3 Rd3 Rb8 Nd5 Rb6 Rf8 Rg8 h8Q Qd6 Rf7 Ra8 Qd8 Be2 Rd4 Qg4 Nf3 d1Q+ Bb1 Qd3 Nh4 Qdf3 Be4 Ra7 Qa8 Qd8 Rd1 Qg8 Qd8 Bd3 Bh7 Bg6 Rf8 Bh5 Be4 Rab7 a7 Rb5 Qa8 R7b6 Rb8 Ra5 Rb7 Bb1 Qd8 Bc2 Rb8 b2+ Ka2 Rba6 Rb4 Rb6 Ne3 Bd7 Bb7 Bc6 Nd5 Bd3 Kb3 b1Q+ Kc3 Qc1+ Kb3 Q2g3 Ka2 Bc2 Qf2 Qcf4 Ka1 Bb3 Qe1 Qf1 Rf5 Bg5 Nf6 Qfe2 Qc3 Qef2 Nh7 Qgg2 Qcd4 Qg2f3 Qf8 Q4e3 Qdd8 Bf6 Qfe8 Qh6 Rg5 Qff5 Qf8 Q5f3 Qf7+
q1q3qb/2n2p2/QK1k3R/nPRb3n/r2r1n2/NQqB1P2/PQNP4/n7 b - - 0 1 legal: proof: e4 a5 c4 d5 g4 b5 b4 dxe4 Ba3 bxc4 b5 h5 Bb4 axb4 gxh5 Qd5 Nh3 Qd6 Ng1 Qd8 Ke2 Kd7 Ke3 g5 Kd4 c5+ Kd5 e5 h4 b3 h6 b2 h5 g4 f3 g3 h7 c3 h6 g2 Ne2 g1Q Qc2 c4 Nf4 e3 Ng6 e4 Bg2 e2 Qd1 e1N Na3 b1Q Nh4 e3 Rh3 c2 Kd4 c1Q Bh1 e2+ Kd5 c3 Ng6 c2 Bg2 Ra4 Bh1 Nd3 Ne7 e1N Rh5 Nf4+ Ke5 Bb7 Qe2 Nf6 Nc6 Bg7 Qe3 Qb4 Bg2 Na6 Nd4 Nc7 Bf1 Qa8 Qb3 Rd8 h8Q Qc3 h7 Bd5 Rh6 Qg6 Qf8 Bh8 Bd3 N6h5+ Qg7 Qg4 Qf6 Qg8 Rb1 Qd1 Rb2 c1N Rc2 Qe2+ Be4 Qec4 Bd3 Bg7 h8Q Qc5 Qh7 Bh8 Qhg7 Qcf8 Qa6 Qfc5 Qb2 Nb3 Rc1 Na5 Qb3 Nc2 Qgf6 Q3b4 Qg7 Na1 Ndc2 Qcc6 Qf6 Qc8 Qg7 Q6a8 Qgf6 Bc4 Kd4 Qc3+ Kc5 Be6+ Kb6 Bd5 Qd4 Ke7 Rc6 Kd7 Rc5 Kd6 Rh1 Re8 Qdb4 Re4 Qb2 Rd4 Q4b3 Ng3 Rh7 Ngh5 Rh6+
1nn2Kn1/rQ2rNP1/1PB5/1bB1Q1p1/b1Qn2Pb/4R2k/1qPbq2q/R7 b - - 0 1 illegal: No proof kernel
1K1br3/2nQ1R1q/NPq5/1nbb1R2/3Br3/2k1bp1q/P1N1PP1n/2QQn3 b - - 0 1 illegal: No possible last move, all moves rejected
B2QbK2/7R/1qnN3Q/1b1P1b1q/R3prqn/r1bPPN1n/N2P4/1n1k4 b - - 0 1 illegal: Other
1nB1qn1R/1qB1q1Pb/3P2q1/1Q5B/2KQPnR1/p2r4/Pbnkbr2/2N5 b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 Na3 exf4 bxc5 d5 c6 Bg4 c5 Bc8 Nc4 dxc4 d4 Ke7 Kd2 Kf6 Kc3 Kf5 g4+ Ke4 g5 b5 d5 h5 e3 f5 d6 a5 c7 a4 g6 b4+ Kb2 a3+ Kc2 c3 Kb3 c2 c6 h3 Bc4 h4 Qd2 f3 Be2 f4 Bb2 c1N+ Kc4 b3 Qc3 f2 Kb5 f1N Qc2+ Nd3 Be5 f3 Bh2 f2 Qc5 b2 Qb6 b1Q+ Kc4 Nf4 Qb7 Bf5 c8B Qe8 Bd1 Ne7 Qb5 Bg7 c7 Bb2 g7 Bh7 Qb3 Neg6 Qc3 Nf8 Bg3 h2 Ne2 h3 Rg1 h1Q Kb3 h2 Qc1 Kd3 Bh4 Qhe4 Rg4 h1Q Bd8 Q4e7 Qc6 Kd2 Qb5 Qb7 Nc1 Qbg6 e4 Ne3 Rb1 Nc2 Kc4 f1B+ Be2 Bf6 Rb3 Bb2 Rh3 Ra5 Rh5 N8e6 Rh3 Rf8 Rh1 Rf7 Rh6 Nf8 Rhh4 Bg8 Rh8 Bh7 Qd5+ Nd4 Rh4 Nh5 Be6 Qb6 c8Q Qgf6 Qcc5 Qbb7 Qa7 Qg6 Qe5 Rf2 Bc7 Rd5 Bc8 Nf4 Qa4 Nc2 Qb5 Rd3 Bh5 Be2 Rg4 Nh3 Qec5 Nf4 Qd4
qNQ5/5bp1/2Q1n2Q/k1qR1P2/4NqP1/1nP1r1nK/1rbP2R1/B2n1qb1 b - - 0 1 illegal: No proof kernel
1rbBQnRq/1N2qr2/1p1n1P2/2rPQ1q1/6rq/5K1k/1PR2P2/n2N1Rb1 b - - 0 1 illegal: No proof kernel
N2QN3/1brbb3/3kq3/6nb/1rRpQ1RP/3Prr2/rBK2PP1/N4n1r b - - 0 1 illegal: No proof kernel
q1k2b1n/bqRN2PP/2P1b1n1/1QqN1pp1/4BP2/4nQ2/1Br1r3/4rN1K b - - 0 1 illegal: No possible last move
2r3Rn/qP3Qp1/P1r1r1P1/3p2Qk/1bq1BK1n/Q1N1rb2/PB4r1/1n1N4 b - - 0 1 illegal: Other
6Nb/1r2r1BB/Qr5P/3PrBpK/P1bQ2P1/R1q1bp1R/3q1k1n/2r2n2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Nc3 exf4 Ne4 h4 Ng3 hxg3 e4 Kd7 Ke2 Kd6 Kf3 Ke5 a4 Kd4 h4 b5 d6 c5 e5 g5 d3 f5 e6 g2 d7 b3 e7 b2 e8B b1R h5 c4 h6 b4 Bf7 b3 Ba3 c3 Bd5 c2 Bb7 c1R Qe2 b2 Ra2 Ne7 Ba6 Bg7 Rh2 Ra7 Rh3 Re8 Rh5 Nd5 Bf8 Nc6 Rh3 Bh8 Qe6 Ne3 Rh4 Ne5+ Ke2 Nf3 Ra3 Nh2 Nh3 g1B Nf2 f3+ Kd2 f4 Rh3 Rb7 Ne4 f2 Nf6 f3 Ng8 Re7 Bc4 Re1 Qa6 Rbc1 Be6 b1R Bf5 R1b6 Bg7+ Re5 Be2 f1Q Bh7 Qc7 d8Q+ Qd6 Bd1 Be6 Bc2 Bc4 Qf6 Qc7 Bb1 Bf2 Bc2 Qg2 Bb1 Kd5 d4 Re7 Bbc2 Nef1+ Kc3 Be3 Qf4 Kc6 d5+ Kc5 Qe5 Bb3 Kd3 Qd2+ Ke4 Bc4 Kf5 Qc6 Qe6 Re2 Kf6 Kd4 Bcf5 Qc5 Qa7 Qcb4 Qc6 Qbc3 Kg6+ Re5 Be6 Ke4 Bf5+ Kf4 Kh5 Ree7 Rh4 Kg3 Rh3+ Kf2 Qe6 Bc5 Qc6 R2e5 Qb5 Be3 Qba6 Rd6 Qc5 Rdb6 Qd4
2k3b1/R5Q1/1r2Np2/1b4p1/1b3PPn/4N1B1/1rPPBB1b/Qq1rbqnK b - - 0 2 legal: proof: e4 b5 b4 h5 a4 d5 g4 dxe4 Ra3 h4 Rg3 hxg3 axb5 c5 Bc4 cxb4 Be2 Rh4 Bf1 Rh8 h4 Kd7 f4 a5 h5 e5 b6 g5 h6 b3 b7 b2 h7 g2 Kf2 e3+ Kg3 a4 Kh2 e2 Nh3 g1B+ Kg2 e1Q Be2 a3 Ba6 a2 Bd3 a1R Qe2 f6 Qe3 e4 Nf2 Qf1+ Kg3 Nc6 b8Q R8a6 Nc3 b1B Ba3 Nge7 Nfd1 Ne5 Bc5 N7g6 Qa8 Nf3 Ne2 Ba2 Nd4 Rb6 Ne6 Ba6 Be2 Bb5 Rh3 Rg8 h8B Qb8 Bg7 Kc8 Rh7 Ngh4 Qf2 Bd5 Ne3 Rd1 Qa1 Rh8 Bd4 Bb4 Bf8 Qb7 Qg2 Bh2+ Kh3 Qb8 Ra7 Rh7 Bfc5 Rhb7 Nf5 Ba2 Bf2 e3 Bg3 Bb3 Bd3 e2 Bcf2 e1B Ne3 Rc7 Be2 Rc3 Nd8 Bg8 Ne6 Rb3 Ra5 Qg1 Ra7 Rb2 Qh1 Nd4 Qe4 Ndf3 Qg6 Qb7 Qg7 Qa6 Nc7 Qa2 Ne6 Qb1 Nf1 Qh1 Ne3 Qf1+ Ng2 Qa2 Bd3 Qe2 Ne3 Qb1 Bc4 Nf5 Kg2 N5h4+ Kh1 Ng1 Bd3 Qf1 Be2
1r6/1k1ppbnP/2NP1P2/1Pq1b1b1/B1NBR3/Q4q2/b1KQ1br1/1B1n2n1 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 a4 fxe4 Ra2 h5 Rb2 hxg4 axb5 Na6 b6 Nb8 b5 Rh7 Rb3 Rh8 Rb4 cxb4 f4 g5 c4 a5 d4 g3 Kd2 g4 h4 g2 b7 g3 h5 e3+ Kd3 b3 d5 e2 h6 e1B h7 a4 c5 a3 f5 b2 d6 a2 c6 a1B f6 Na6 b8Q Bb7 c7 Bf2 c8B Nc7 Ne2 g1Q Qa7 g2 Kc2 Ne6 Qa2 Bh6 Qad5 Ng7 Q5d2 Bg5 Kb3 Ra2 Qd4 Bd5+ Kc2 Nh6 Q4d3 Nhf5 Nd2 Bf7 Bb7 Qa8 Qa3 Kd8 Be4 Kc8 Rh4 Qb7 Bd3 Qf3 Nc4 Kb7 Re4 Rb8 Qd2 b1B+ Kb3 Ne3 Bc2 Bd4 Bb2 Be5 Nd4 Nd1+ Bfd3 Rc8 Nc6 Rb8 Bd4 Rb2+ Ka4 Ba2 Bb3 Qe1 Kb4 g1N Bb1 Rc2 Ba4 Qee3 Qdd3 Be1+ Qdc3 Rg2 Qd2 Bf2 Bd3 Nb2 Kc3 Nd1+ Kc2 Bb3+ Kc1 Ba2 Bb1 Qc3+ Bac2 Qb4 Ba4 Qc5 Kc2
nb1k3r/RK4b1/QpR1B2q/1P3n1P/3r1P1b/Bpnb4/P2NQ1b1/2R4q b - - 0 1 legal: proof: e4 a5 b4 h5 d4 f6 g4 hxg4 Nc3 c5 b5 cxd4 Nd5 f5 Nb4 axb4 exf5 Qb6 Rb1 Qa5 Ra1 Qd8 Kd2 d5 Kd3 g5 f4 e5 h4 e4+ Kd2 b3 c4 d3 Kc3 d4+ Kd2 e3+ Ke1 g3 f6 e2 Kd2 g4 c5 g2 c6 g3 c7 Ra4 h5 Qd6 Rh3 Na6 Qc2 e1B+ Kd1 d2 Ke2 d1N Kf3 d3 Bb2 d2 Bc3 Bf5 Rh1 Nh6 Be2 Rd4 Bc4 Bd3 Be6 Bg7 Rc1 Nf5 Bb2 Nc3 Ba3 d1B+ Qe2 b6 f7+ Ke7 c8R Nc7 Rc2 Na8 Rc7+ Kd8 Ra7 Be5 Rc1 Qf8 Rh2 Qh6 Rh1 Bb8 Rc2 Re8 f8Q Bf2 Qb4 Rh8 Qa5 Be1 Qa6 Bf2 Nh3 g1B Ng5 g2 Ne4 Bh4 Nd2 Bgf2 Rc1 g1Q Rh2 Bf6 Rg2 B2h4 Rg6 Bg7 Rf6 Rd7 Rg6 Nd6 Rf6 Qh1+ Ke3 B1c2 Kd4 Be4 Ke5 Bcd3 Kd4 Bg2 Ke5 Nce4 Kd5 Nf5+ Kc6 Rd4 Kb7 Nc3+ Bd5 Rh7 Rc6 Rh8 Be6
Nb1Q1Rkq/1P4P1/2p1P2q/3q1b1r/2Pq1BQ1/6r1/2pq1rnQ/n1R3NK b - - 0 1 illegal: No possible last move, all moves rejected
1bnbkbN1/1pP2r2/PB1q1p1r/1nPQ2Q1/qPB3r1/3bb3/3Q3N/R6K b - - 0 1 illegal: No proof kernel
3nNk1b/Kn1BB2p/3pP2P/2Q5/1rrrqq2/1P5R/P3b1qR/1qb1Q2B b - - 0 1 legal: proof: g4 b5 d4 f5 c4 bxc4 b3 fxg4 Nc3 e5 Na4 a5 Nb2 a4 dxe5 a3 Bd2 axb2 Be3 Bd6 Bc1 Bf8 Kd2 b1Q Kc3 g5 Kd4 c5+ Kd5 d6 e4 g3 f4 c3 h4 g2 e6 c2 h5 g4 h6 g3 e7 c4 e5 c3 f5 Nc6 f6 Na5 Be3 c1B Bd2 c2 Nf3 g1Q Ng5 g2 Ba6 Qf2 Rh3 g1Q Qe1 Nb7 Kc6 Bg7 Ne4 Qgg2 Bg5 Qf4 Bd3 Kf7 e8B+ Kf8 f7 Bg4 e6 Be2 Bd7 Ra4 Ba6 Qe8 Kb6 Rd4 Ka7 Ne7 Nf6 Rg8 Bd3 Bh8 Be4 Rg6 Bh4 Rg4 Rh2 Qc8 Ne8 Qc6 Bf3 Qce4 Bf6 Qf2 Bh1 Qfg2 Rh3 Be3 Bg5 c1R Rh2 Rcc4 Bf6 Qb2 Rd1 Rb4 Rd3 Bc1 Rdh3 Qbb1 Bg5 Rg3 Qd2 Rdc4 Qd5 Qg4 Qc5 Rd3 Rf3 Rdd4 Rfh3 Nc6+ Ka8 Qgf5 Bh4 Qf6 Bg5 Ke7 f8Q+ Kd8 Bh4 Qfg5 Qf2 Ke7 Qg1 Ncd8 Qe1 Kf8 Ka7 Qgf4 Be7+
1r3n2/Rpq4N/1N1P2nb/1r4pq/1BnBK1P1/2r1PB1P/8/1Q1rQbqk b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 e5 cxd5 h5 f4 exf4 Ra3 h4 Rg3 hxg3 d4 Ke7 Kd2 Kf6 Kd3 Kg5 e3 Kh4 h3 g5 a5 c5 d6 f5 a6 c4+ Kc2 f3 a7 g2 d7 Kg3 d5 c3 Kd3 f2 d6 f4 Kd4 c2 Bb5 f1N Nc3 b3 Kd3 f3 Bc6 b2 Bd5 b1Q Ba3 c1R+ Qc2 f2 Bc4 Ne7 Ba2 Ng6 Na4 Bh6 Ke4 Qc7 d8B Bd7 Nb6 Bb5 Bf6 Nd7 Bd4 Rhb8 Nf3 g1Q Nh4 Ndf8 Bb4 Qa1 Qb2 Rc3 Qb1 Ba6 Bc4 Nd2+ Kd5 f1R Be2 Nc4 Ke4 Rd1 Rh2 Nge5 Ng6 Qa4 Rf2 Qe8 Rf1 Kg2 Re1 Nfd7 Nf8 Qh5 Nh7 Nf8 Rf1 Kh1 Rf5 Neg6 Ra5 Rc8 Ra3 Rab8 a8Q Bb5 Qa5 Rb3 Bbc5 Ba6 Qe1 Rc3 Bb4 Re8+ Kf3 Re5 Ra4 Rd5 Ke4 Bb5 Ra7 Ba6 Qf2 Rb5 Qe1 Nce5 Qf1 Ra5 Bd3 Bc4 Qe1 Rb5 Bc2 Bf1 Bd3 Nc4 Be2 Ra8 Qb3 Rc8 Qb1 Rb8 Bf3+
1q3nrN/2Pb3P/rq1Q1Qb1/3B1bK1/p2q2p1/4nBBk/P1bR2P1/N6n b - - 0 2 illegal: Other
1K1bn3/1B2P3/p2Rb2r/r2q3n/3Qp3/1R1q1qNr/1Q1qPPP1/n1N1N2k b - - 0 1 illegal: No proof kernel forced: bxLB
n5q1/r1pK1N2/q2P4/2P2Rb1/1rpB1RB1/rQ1b2q1/1Q1PP1n1/1kn1R2q b - - 0 1 illegal: Other
1N1Q1k2/2b3b1/b3P2p/2Bn2nb/Pqn3q1/r2PqpRP/r5B1/BQ1K1N2 b - - 0 1 illegal: No possible last move
R1Bb2r1/1pn3B1/2QNrpn1/2Q2qPK/r2P1q1N/B1qP1P1b/1b2r1k1/8 b - - 0 1 illegal: No possible last move
5bqn/RP1br1q1/1rNBbBpP/nPk2pq1/6r1/N5Qr/BK3PQ1/8 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 hxg4 c4 e6 d4 dxc4 d5 e5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 Kd2 Kd7 Kc2 Kd6 h4 f5 e4 c5 h5 a5 b6 a4 b7 a3 b5 d3+ Kc3 g6 Qf3 d2 Bd3 d1B Qg2 a2 Rh3 a1Q+ Bb2 g3 Be2 Nh6 Qh1 g2 Nf3 g1R Ng5 Ra6 Qf3 Bd7 Na3 Rg4 Qg2 Nc6 Ne6 Bb3 Nd4 Na5 Nc6 Nf7 h6 Rh7 Bd3 Nh8 Bb1 Re7 Ba2 Rb6 Rf3 Qe8 Rf4 Qf7 Qg3 Qg8 e5+ Kc7 e6 Kd6 Bb1 Ba2 Kc2 c3 Ra4+ Rf4 Kc1 c2 Bf6 c4 Qg2 Kc5 d6 Qc3 Be5 Bb3 Ba2 Rg4 Bh2 Qf6 Bf4 Qg5 Kb2 c1R Qg3 Rc3 Be5 Rg7 e7 Rh7 e8Q Re7 Qg2 Rh3 Qb8 Qf6 Qc7 Qfg7 Bf6 Be8 d7 c3+ Ka1 c2 d8B Bd7 Kb2 Bc4 Qcg3 Bce6 Bc7 Nb3 Ra7 Na5 Bb1 c1Q+ Ka1 Qf4 Kb2 Qe3 Ba2 Qg5 Bd6#
1KN2rN1/2Q5/3pp3/2n3Rr/Pb2q1rB/Q2bP1nq/P2QPq2/1nrk3B b - - 0 1 illegal: Other
2bRNnB1/p1PqQ1b1/q2p4/1Qr1PR1b/P1P2r2/Kn2Q3/2rqN1kr/8 b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 f5 g5 c5 bxc5 f4 Bd2 h6 Ba5 hxg5 Bc7 g4 Be5 Kf7 Bf6 Ke8 Bh4 Qe7 Bg3 fxg3 Qc1 Qh4 Qd1 Qd8 Kd2 Kf7 Kc1 Kf6 Kb2 Kf5 f4 Ke4 c4 g5 h4 b5 a4 g2 h5 b4 f5 b3 h6 d6 f6 d3 c6 d2 f7 g3 e3 g4 h7 Nf6 c7 Nbd7 Na3 Bg7 f8Q Nc5 Qf7 Nfd7+ Qf6 Nf8 Qe2 d1B Nc2 Qd7 Nh3 g1Q Nf4 g2 Qe1 Kf3 e4 g3 e5 Qd4+ Ka3 g1Q Nb4 b2 Qd2 b1R Qe7 g2 Nbd5 Rb5 Bd3 Nb3 Ne2 Rc5 Nf6 Qge3 Rh5 g1R Ne8 Rg2 Rb1 Rh2 Rf5+ Kg2 Qb4 Qd2 Qb5 Q4c3 Rb2 Qa5 Bb1 Rg8 h8Q Qa6 Qh6 Rh8 Qf4 R8h4 Qd4 Rf4 Qe3 Rb8 Be4+ Rf3 Bd5 Rb7 Bg8 Rf4 Nc1 Bh5 Ne2 Rb6 Rb1 Na1 Qa5 Rb2 Qb5 Rc2 Qc6+ Qd5 Rb8 Nb3 Qb5 Qd2 Ra8 Bb7 Rd8 Bc8 Qd4 Qc3 Qd3 Qd2 Qe3
Qr3bbR/Q2P3b/1q1N3Q/p5n1/K4P1P/2qB1nb1/P2R2kp/2q1Nnr1 b - - 0 1 illegal: No possible last move
1B3r1N/1q1qQpnr/rB2nbq1/3p4/2B2R1k/1PNQ1P1b/3KP2P/1q3b2 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 e4 d6 cxd6 Ra4 d5 Ra3 d4 Rd3 exd3 c4 Ke7 b3 Kf6 c5 g5 c6 d5 f3 a5 b6 g3 b7 g4 c7 a4 Qd2 a3 Qd1 g2 Bb2 Kg5 Qc1+ d2+ Kd1 a2 Qc5 a1R Qb4 g3 Qa3 Ne7 Qd6 Nf5 Qe5 R1a6 Bc1 Be7 Nc3 Qd7 Qe6 Rh7 Ba3 Kh4 Qe3 Bf6 Bb4 Nc6 b8B Nd8 Qe5 Ng7 Qe7 Nde6 Nh3 g1Q Bc5 g2 Bb6 Qe3 Kc2 g1Q Nf4 Qg6+ Kd1 Qed3 Rg1 Q3b5 Rg5 Qbc6 Rf5 Qb7 Kc2 d1B+ Kd2 d3 Bg2 Bc2 Bh3 Qd6 Bg4 Bd7 c8Q Qdc7 Ke3 d2 Bh3 Qd6 Qc4 d1Q Qd3 Qb1 Kd2 Qdc6 Re5 Qa4 Bf5 Qb5 Be4 Qa4 Rf5 Qac6 B8c7 Rf8 Bb8 Qcc8 Qd4 Qe8 Bd3 Bc8 Bc4 Qed7 Rg5 Bf5 Qd3 Bh3 Re5 Bf1 Rf5 Qg1 Ng6+ Kh3 Nh8 Kh4 Qa3 Qg6 Qe7 Qd8 Nd1 Nd4 Rg5 Bch3 Rf5 Qdd7 Nc3 Nde6 Rf4+
1b1r1bb1/P1Nn1Rkp/Ppq1Br1q/Q3q3/2n5/2q1Q2P/1P1BR2r/1K5R b - - 1 2 illegal: Other
2n1bn2/rP1p1r2/1NBPP3/q3kn1K/n2n2R1/n4pB1/5Pr1/Q1N1Q1bN b - - 1 2 illegal: No possible last move
1n2brNQ/6BP/2p3bK/2k1r3/n1PnB3/n3R1b1/P1QnP1pN/1n1Q3q b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 g5 e5 dxe5 h4 Nd2 f6 Rb1 fxg5 Rb3 g4 Rg3 hxg3 f4 Ke7 h4 b5 c4 g5 h5 d5 h6 b3 f5 b2 h7 b1N e6 Kd6 e7 b4 e8Q d4 f6 g2 Kf2 d3 Ke3 b3 f7 c6 Qe1 b2 Rh5 g3 Rh1 g4 Kf4 Kc5 Rh6 Ne7 Kg5 Bd7 Rh2 Ra5 Ngf3 g1N Rh4 g2 Rh5 g3 Rh3 Nc8+ Kh5 Bd6 f8Q Qh4+ Kg6 Na3 Qd1 b1N Qef7 Be8 Qg7 Nb6 Rh2 Na4 Qc2 Rf8 Rh3 Bc7 Nh2 Nf3 Qh8 g1N Kg7 Nd4 Bb2 Ngf3 Bg2 Qe4 Qd7 Rb5 Ndf1 d2 Ng4 d1B Nh6 Nfd2 Ng8 Qh4 Bd5 g2 Re3 Bg3 Be4 Qh1 Nh2 Ra5 Kh6 Rb5 Qc1 Bc2 Qd8 Bd3 Qc2 Ra5 Bd5 Bdg6 Be4 N4f3 Bg7 Nd4 Kg5 Ra7 Kh6 Re7 Qd7 Re5 Qd8 Ndb5 Qdd3 Nd4 Qdb3 Bh5 Qd1 Bhg6 Qbc2
1b6/R1PP3k/P4nQr/1BnpKN1n/3B1pr1/6nb/2qP1rn1/2QQ2Nn b - - 0 1 illegal: No proof kernel
Qr2R3/r1P4q/1n1n4/NPpQp3/P5nb/1B1rP3/nKR2r1Q/1b2Nkn1 b - - 0 1 illegal: No proof kernel
rn2b1Q1/2NPK2k/pPrp3r/bQR5/Pb6/3P2qb/3B2RR/nB1r1n2 b - - 1 2 legal: proof: f4 b5 g4 g5 e4 d6 c4 bxc4 e5 Kd7 e6+ Kc6 Na3 Qd7 exd7 h6 Nc2 gxf4 g5 h5 Ne3 Bg7 Ng4 hxg4 Qe2 Bh6 Qd1 Bf8 Kf2 Kd5 b4 Ke6 h4 Kf5 a4 Kg6 b5 c5 b6 f5 d3 e5 h5+ Kh7 h6 g3+ Kf3 e4+ Kg2 e3 Kf3 e2 Rh4 e1B Rh5 c3 Qb3 c2 Qb5 a6 Be2 g2 Qc6 c4 Rh1 c3 Bf1 Ne7 Be2 Nd5 Bd1 Ne3 Qc4 Bb7+ Qe4 Bd5 Ne2 g1Q Bb2 c1R Ra2 c2 Rh5 Ba5 Nc3 Bg7 Nb5 Bf7 Bc3 Be8 Bd2 Bgc3 Qd5 Bcb4 Nc7 Rb1 Qc6 c1R Qb5 Rc6 Bc2 Rd1 Bb1 Nc2 Rb2 Na1 g6+ Kg8 g7 Kh7 g8R Qe1 Rg2 Qg3+ Ke2 f3+ Ke3 f4+ Ke4 f2 Kd5 f1N Ke6 f3 Rc5 f2 Ke7 Ne3 Rh2 f1B Ra2 Bh3 Rg2 Kg6 h7 Nf1 Rac2 Rf8 h8Q Rf6 Qf8 Kh7 R2c4 Nb3 Rh4+ Rh6 Rhh5 Na1 Rh4 Bf5 Rhh2 Bh3 Qg8+
2rqQbnB/7r/1n1P1RRn/2Pp2Pr/2b3Bb/1p6/3P1bBK/Qk1nN3 b - - 0 1 illegal: No proof kernel
6Rr/N2Bp1QP/4PpnQ/4qr1R/3r1N2/1rn1q3/Pn1R1b1P/3bnk1K b - - 0 1 illegal: No proof kernel
B2n1q1k/K2pBNqP/RQqP1Q2/2bp1b2/3bPr1Q/3n3P/3R4/q5br b - - 0 1 legal: proof: f4 b5 g4 e5 d4 exf4 a4 bxa4 d5 h5 gxh5 c6 d6 Rh7 Nc3 Rh8 Nd5 cxd5 Kf2 g5 c4 f5 b4 Kf7 e3 Kg7 c5 a5 c6 f3 b5 a3 b6 f4 b7 g4 c7 a4 Bb2+ Nf6 Bg2 a2 Qe1 a3 Bh3 g3+ Kf1 g2+ Kf2 Nc6 b8Q Ra4 Bg4 Qe7 Be6 Ba6 c8Q Bd3 Qd8 Bf5 h6+ Kh7 Qbb4 Bg7 Qbb6 Nh5 Nh3 Bd4 Rg1 Qg5 Qf6 Nd8 Qeb4 Bc5 Rgd1 Qg6 Rd2 Qg7 Qc4 Rb4 Bf7 Ra4 Bg6+ Kg8 Ng5 g1B+ Kf1 f2 Ke2 Rb4 Nf7 Ra4 Qe4 f3+ Kd3 f1Q+ Kc3 f2 Qh4 Qb5 h3 f1Q e4 Nf4 Bh5 Nd3 Bd1 Qc6 Bc1 Rb4 Ba4 Rb1 Bb5 Kh7 Ba6 Qf4 Bb7 Rf8 Ba8 Kg8 Rd1 Qf1 Bg5 Qf3 Rd2 Qf4 Ne5 Kh8 h7 Rf7 Qfh6 Rf8 Be7 Rd1 Q6f6 Re1 Rb1 a1B+ Kb3 Bad4 Ra1 Bgf2 Raa2 Rh1 Ra1 Bg1 Raa2 Qc8 Ka4 Qc6+ Ka5 Qf2 Ra1 a2 Ka6 Rf7 Ka7 Qf3 Rad1 a1Q+ Ra2 Qf4 Ra6 Qh6 Qfg5 Qf8 Rd2 Qhg7 Qgh6 Be6 Q6g5 Rf4 Qf6 Bf5 Nf7+
4q1br/1B1q1pp1/nBn1k3/rPPB2PR/rn1Q2P1/2r1b1n1/6K1/3N1NQ1 b - - 0 1 illegal: No proof kernel
rnN1nrnR/P2RQ3/2b5/2b1K1QP/4np1N/1Bk3b1/q1PR1P1p/1qb5 b - - 0 1 illegal: No proof kernel
2bb1q2/2NPn2p/Q2P4/1Rpq1k1b/1RqB1b1Q/KBPrR3/Pr1n4/q7 b - - 0 1 legal: proof: e4 a5 h4 g5 b4 gxh4 Nc3 d5 exd5 axb4 Ne4 f5 Rh2 fxe4 Rh3 Nc6 Rh1 Nb8 g4 Kd7 d4 c5 Kd2 e5 f4 b5 c3 b3 g5 b4 g6 h3 g7 b2 Kc2 b1Q+ Kd2 e3+ Ke1 e2 Kd2 e1B+ Ke2 h2 d6 Ke6 d7 b3 d5+ Kf5 Qd4 b2 Kd1 e4 Nf3 e3 Bc4 Qe4 Ng5 b1B Ne6 Bd2 Bb3 Nf6 g8R Be7 Rg3 Nc6 Nc7 Qf8 d6 Ra4 Re1 h1Q Rg4 Bd8 Qc4 Qh4 Qa6 Ne7 Re2 Bd3 Rb1 Qd5 Re1 Bc4 Kc2 Be2 Kb2 Rd4 Ka3 Rd3 Rb2 Ne4 Rb1 Kf6 f5 Ke5 f6 Kf5 f7 Rg8 Rg6 Bh5 Rg4 e2 Rb2 Bf4 Be3 Nd2 Bd4 Qc4 Rbb1 Qh1 Rh4 Rg2 Rb2 Qh6 f8Q+ Qf6 Qg8 Qf8 Qg3 Rf2 Rg4 Qhd5 Qh4 Rh2 Rf1 e1Q Rf3 Qa1 Re3 Rh1 Bc2 Rb1 Rb5 Rb2 Bb3 Be5 Rge4 Bf4 Be5 Qdg8 Rd4 Qcd5 Rdb4 Qc4 Bg7 Qgd5 Bd4
1rr3n1/bp1PBp2/r3RNnQ/1P1R1P2/r3PNn1/R4b1k/K3b1r1/4b1Q1 b - - 0 1 legal: proof: d4 e5 b4 exd4 h4 g5 Bb2 gxh4 Ba3 a5 Bc1 a4 c4 d5 e3 d3 Be2 d4 Bf3 Qd5 cxd5 Bg7 Bg4 Bf8 Bd7+ Kd8 Bb5 Ke7 Bc4 Ke8 Bb3 axb3 Kd2 Ke7 a4 Kf6 g4 Kg5 a5 c5 b5 h5 a6 c4 f3 b2 e4 h3 a7 Kh4 g5 h2 f4 c3+ Ke1 c2 Kd2 Nd7 g6 Ne5 g7 Ng6 d6 Bg4 d7 Rb8 a8Q Bc5 f5 Be2 Na3 b1R Qf1 Rb2 Qa4 Ba7 Nh3 Rc8 Rg1 h1N Qf3 Nf2 Qg2 Ng4 Nb1 Ra2 Qb4 Ra6 Nc3 Ra4 Ba3 c1B+ Ke1 Bf4 Qd6 Bg3+ Kd2 Be1+ Kc1 d2+ Kb2 d1B Nd5 d3 Nf6 d2 Nf4 Bf3 Bb4 Bde2 Ra3 d1R Ka2 Ra6 Rf1 Rd4 Qg1 Rb8 Bc5 Rda4 Qd2 Rc8 Be7 Rb8 Nh3 Rc8 Qh6 Rb8 Nf4 Rc8 N4d5 Kh3 Rf2 h4 Nh5 N8f6 g8R Rb8 Rg7 Rhc8 Kb3 Ng8 Ndf6 Bd3 Rd2 Bde2 Qc5 Kh2 Rd1 h3 Rd5 Kg2 Qcc1 h2 Ka2 h1R Qc5 Kh3 Qg1 Rh2 Rh7 Nf8 Rg7 Rf2 Rg6 Rg2 Nh7 Be3 Re6 Ba7 N7f6 Ng6 Nf4+
2Q3Bn/Rqr2q1n/n5p1/1rbP2PQ/4b2P/2bNkp1Q/K2p1NP1/2Rq4 b - - 0 1 illegal: No proof kernel
5bR1/qqb1qQPp/RnQ1r3/n3pbNP/4PP2/2R1pr1n/1B1B4/1K3k2 b - - 0 2 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra3 f4 Ra4 Ba6 Ra1 Bc8 Na3 g6 Be2 g5 Nc4 g4 Ne3 fxe3 f4 Nf6 Bf3 gxf3 Ra5 Ng8 Ra2 Ba6 Ra1 Bc8 h4 Kf7 g4 Kg6 b4 a5 c4 d5 b6 f2+ Ke2 a4 Kd3 f1Q+ Kc2 a3 b7 d3+ Kb1 d4 c5 d2 g5 d3 c6 a2+ Kb2 Nd7 b8R Nb6 b5 Ra6 c7 Bf5 Qe1 Kh5 c8Q Kg4 h5 d1N+ Kb3 d2 Kc2 Nf2 g6 Kg3 Rb1 Kg2 Qe6 d1Q+ Kb2 Q1d5 Bd2 Qb7 Rc1 a1B+ Kb1 Nh3 Qf7 Be5 Rc3 Bc7 Nf3 e5 g7 Ne7 Qc1 Nc6 Ng5 Ra2 Ra8 Qf2 Ra6 Qe8 Rd1 Na5 Qc2 Qe7 Qa4 Nc8 b6 Qa7 b7 Nb6 b8B Qh4 Be1 Rf2 Rd8 Kf1 Qc6 Rf3 Bd2 Qf2 Re8 Qe2 Rc8 Qc4 Re8 Qce6 Rd8 Qc8 Re8 Qcb7 Rc8 Bd8 Bd6 Bc7 Ba3 Qc5 Rb8 Bfd6 Rc8 Re8 Qfd7 Re6 Rg8 Bf8 Qf7 Qe7 Bb2
RBr2r2/2Pq1qP1/1NPp2pk/br3n1p/2b3P1/QBn5/1nRR1bQ1/K7 b - - 0 1 illegal: Other
R1b1k2b/q1pq2Q1/4pnQ1/2P1P3/2np2rQ/qP2b2K/RN1P1B2/N1n1r3 b - - 1 3 legal: proof: g4 b5 g5 a5 g6 b4 Na3 b3 axb3 fxg6 Nb1 g5 Ra3 g4 Ra2 Kf7 Ra1 Ke8 Ra4 h5 Ra3 a4 Ra2 a3 Ra1 axb2 Nf3 h4 Bg2 h3 Ng1 hxg2 f4 d5 Kf2 g5 Kg3 e6 h4 Nc6 e4 Bc5 c4 Ra2 e5 Be7 f5 Bf6 h5 Na5 h6 Ra4 h7 Qd7 Ne2 g1N Na3 b1Q Nc2 Qa2 Nc3 Qa3 Bb2 Ne2+ Kh2 g3+ Kh3 g2 c5 g1B Ra2 Nc4 Qb1 Nc1 Na1 Be3 Nd1 Rb4 Bd4 g4+ Kh2 g3+ Kh3 g2 Nb2 Bg7 f6 g1Q Qe4 Qf1+ Qg2 Qd3 Qg5 Qda4 Rf1 Qa7 f7+ Kd7 f8Q Nf6 Qg3 Rg8 Qg2 Bh8 Qfg7+ Ke8 Qe4 Ra4 Qh4 Ra5 Qg2 Rg4 Rf3 Bh6 Bf2 Be3 Rf4 d4 Rf5 Qe4 Rg5 Qc6 Rg8+ Ke7 Qe4 Qd7 Qg6 Bg7 h8Q Qb4 Q8h7 Ba6 Bg3 Nd3 Q7h6 Bh8 Ra8 Bc8 Nc2 Qba4 Qgg7+ Ke8 Ra1 Qb4 Be1 Ra2 Bf2 Qba3 Nd1 Rb2 Ra2 Rb1 Nb2 Re1 Na1 Nc1 Qhg6+
1N3kQ1/2PP2bp/p1B1bPq1/2n2R2/R1QQ1p1r/5q2/K1b2qnP/N3rr2 b - - 0 1 illegal: No possible last move, all moves rejected
2R3rr/2n2k1Q/1qNQ1p2/4PPBr/1PKN1pb1/1B3r2/r1Pb2p1/1Nb1n3 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 hxg4 d4 cxd4 f4 e5 f5 Qe7 Ra3 Qf6 Rf3 Qd8 Rf4 exf4 Kd2 d5 Kd3 g5 h4 a5 e4 g3 b6 f6 b7 g2 e5 g4 h5 a4 h6 g3 h7 a3 Bb2 a2 Qc1 a1R Rh5 Na6 b8Q Kf7 Be2 Ne7 Nd2 Nc6 Qe1 Qb6 Qb1 Nc7 Rh4 R1a2 Bc1 Bc5 Rh5 Bb7 Nh3 g1B Nb3 g2 Bd2 Be3 Be1 Bc1 Ng1 Bd2 Bh4 Bc1 Qa7 Rag8 Nf3 Bd2 Qh1 Bc1 Bf1 Ba8 Qb8 Bb7 Ke2 d3+ Kd1 d4 Bg5 d2 Ke2 d1R Nfd2 Re1+ Kd3 Re3+ Kc4 d3 Nb1 d2 Nd4 d1R Rh3 Rb3 Rc3 Rd3 Qd8 Rf3 Qh6 Rh3 Qd6 Rh5 Nb5 B5e3 Nd4 Bed2 Bd3 Na7 Be4 Nab5 Bd5+ Ke8 Be6 Bf3 Bd5 Bg4 Be6 Rf8 Bd5 Rhg8 h8N Rba3 Nf7 Rb3 Rg3 Rf3 Nd8 Rh8 N8c6 Rfg8 Ne6 Nd4 Rh3 Rf2 Rc3 Nf3 Ned4 Ne1 Ra3 Ne6 Ra8+ Kf7 Rd8 Rf3 Rc8 Qc7 Kb5 Qd8 Bb3 Qb6+ Kc4 Nc7 Qh7+
1b3r1n/b2Q4/2ppPQb1/1nnQ2Nk/1qb2Bp1/2r1R1r1/1RPP2P1/4B2K b - - 1 3 legal: proof: f4 e5 a4 exf4 e3 b5 axb5 g5 Nf3 h5 Nc3 g4 Ne2 Nh6 Neg1 Ng8 Bc4 gxf3 Be6 Ba3 Bf5 Bf8 Bg4 hxg4 Kf2 f5 b4 Kf7 h4 Kg6 e4 a5 e5 a4 b6 a3 b5 c6 b7 a2 b6 Qe7 Ba3 Qb4 Qe1 Nh6 Bc1 Na6 b8Q Nc7 b7 Kh5 Qe2 Nf7 Rb1 a1B Qa6 Bd6 Qd3 Bd4+ Qe3 Ba7 Rb3 Rf8 Ba3 Nb5 Kf1 f2 Qd3 Nh8 Nf3 Bc7 Rh3 d6 e6 Bd7 Qc8 Be8 Bb2 Bcb8 Qd5 Bf7 Be5 Bg6 Ke2 f1N Ng5 f3+ Ke1 f4 Qd7 Nd4 Kf2 Ng3 Kg1 Ne4 Rb2 f2+ Kh1 f1B Re3 f3 Bg3 f2 Bf4 Kh6 h5 Bc4 Be5 Nc5 Bf4 Bc7 b8Q Nb5 Qbd8 Bcb8 Qf6 f1R+ Kh2 Rf3 Kh1 Bb6 Bg3 Ra3 Be1 Rd3 Nf7+ Kh7 h6 Rc3 Ng5+ Kg8 Qc8 B6a7 Qc7 Rg3 Qd7 Rf7 h7+ Kf8 Qff5 Kg7 Qf6+ Kh6 Qff3 Rf8 Qf6 Nf7 h8B Kh5 Bg7 Nh8 Bh6 Bgd3 Nf3+ Bf5 Bg5 Be4 Bf4+ Bf5 Ng5 Bh7 Be5 Bg6 Bf4
2N1n1n1/QnB1r2n/8/2q1P2b/br1pq2p/PR1P1pBP/2Nn1K2/1Bk2Q2 b - - 1 2 legal: proof: f4 e5 b4 exf4 c3 b5 Qc2 a5 Bb2 axb4 Qg6 b3 Qc2 b4 Bc1 b2 Qd1 b3 d3 g5 Be3 Bb4 cxb4 Qe7 Na3 Qd8 Rc1 f3 Rc4 Nh6 Rh4 Ng8 Rf4 gxf4 g4 Ke7 b5 Kf6 b6 Kg5 b7 b1Q h3 f5 Bc1 c5 e4 d5 e5 h5 Nb5 f2+ Ke2 b2 a3 c4 Nc3 d4 Qb3 h4 Na4 c3 Be3 c2 Qa2 c1N+ Kf3 Nd7 b8B Qf8 Qe6 Ra7 Qb3 Qc5 Qd5 Nf8 Bc7 Nb3 Bb8 Re7 Be2 f1N Qb7 Bd7 Nb6 Na5 Bd6 Qe1 Kg2 b1N Na4 Nc3 Bd2 Nh7 Bd1 Qe4+ Kf2 Nd5 Bc2 Nc7 Bb1 Ne8 Qa7 Nb7 Nb6 Ba4 Be1 f3 Bc7 Kf4 g5 Nd2 g6 Nc4 Kf1 Ke3 g7 f4 Nc8 f2 Nf3 Nd2+ Kg2 f1B+ Kg1 Qed5 Bg3 Be2 Ne1 Bh5 Nc2+ Ke2 Rh2+ Kd1 Kf2 f3 Rg2 Kc1 Rh2 Ngf6 g8Q Qe4 Qg5 Rf8 Qe3 Ng8 Qe2 Rf6 Rg2 Rb6 Qf1+ Kb2 Bf4 Rb3 Rg6 Rb4 Bg3 Qc3 Rb6 Qc5 Qe2 Kc1 Rb5 Rc4 Rb3 Rb4 Qf1+
Rb2R2n/r2p1Nq1/3n1rR1/3P1pQp/6P1/P3rP2/1KbQNk1r/5Brq b - - 1 2 legal: proof: d4 e5 c4 g5 h4 Bb4+ Bd2 Bf8 b4 a6 b5 axb5 Bc3 bxc4 hxg5 Na6 d5 Nb8 Bd4 exd4 Qd2 c3 Qc1 Nf6 Qd1 Ng8 e4 Ke7 g4 Kd6 g6 Ke5 a3 Kf4 g7 f5 e5 c5 e6 b5 e7 c2 Kd2 c1R e8R d3 f3 Kg3 Qb3 b4 Nc3 c4 Rh2 Na6 Bh3 Re1 Ree2 Ra7 Qd1 b3 Kc1 b2+ Kb1 d2 Bf1 Bd6 Nh3 Bb8 Nb5 c3 Nd6 c2+ Ka2 b1R Rh1 c1R Re3 Nh6 g8Q Rb6 Bd3 Qe7 Qg7 Nc7 Qg5 Nb5 Rf1 Qg7 Qc2 d1Q Nf7 Nd6 Qc3 Ba6 Re8 Re3 Rh1 Rc6 Bf1 Bd3 Rf8 Bc2 Ng1 Kf2 Ne2 Qe1 Qd2 Rb6 Ne5 Nhf7 Rh6 Qd1 Rg6 h6 Bh3 Qh1 Bf1 Rh7 Re8 Nh8 Nf7 Rd1 Rb1 Rc6 Bg2 Rg1 Rb4 h5 Rc4 Rh6 Ra4 Rb6 Bf1 Rb1 Rge6 Rf6 Ra6 Ra1+ Kb2 Rg2 Ra5 Rh2 Ra6 Rc7 Ra8 Ra7 Bh3 Rg1 Bf1 Nb5 Ra6 Nd6 Rc6 Nb5 Rce6 Nd6 Ne5 Rf7 Rg6 Rf6 Nf7
2br4/1N1pr1N1/P6b/Br3P1n/QR3p1B/2qPqP2/2q2pK1/1rBQk2n b - - 0 2 illegal: No possible last move
5rbn/3KP1bq/q2p1q2/P3BR2/rR2p2Q/q3p2n/2kNP1PB/2rBQ3 b - - 0 1 illegal: No possible last move
1n3nkB/1K4Q1/p1pP3q/2PP4/1n4B1/Pq2Nprb/R1b3r1/R1nBb2Q b - - 0 2 legal: proof: h4 d5 f4 b5 e4 g5 exd5 gxh4 f5 b4 a3 b3 f6 exf6 Nc3 f5 Na2 bxa2 Rh2 f4 Rh3 Bd6 Rh1 Bf8 Ke2 f5 Kf3 Kf7 g4 h5 b4 h3 d4 h2 c4 c6 g5 a6 b5 h4 b6 h3 b7 Nf6 g6+ Kg8 g7 Nh7 Qa4 Bb4 c5 Nf8 d6 Qb6 d5 Be1 Ne2 Qb3+ Nc3 Rh6 Bb5 Rg6 Bb2 Rg2 Qd4 Bd7 Rg1 h1Q Be2 h2 Bd1 Be8 Rf1 Bg6 Rf2 Bh7 Ke2 f3+ Kd3 f4+ Qe4 Ra7 Kd4 Rg3 Ke5 Rg2 Rc2 f2 Kf6 f1N Ke7 Ng3 Kd8 Ne2 Kc8 Nc1 Qe5 f3 Re2 Nbd7 b8Q Bc2 Qh5 Rb7 Qc7 Nb8 Qe7 Rb4 Qeg5 Rbg4 Qh3 Qa4 Kb7 R4g3 Qg6 Qg1 Qgg4 h1B Qh2 Qe3 Qg1 Kh7 g8B+ Kh8 Qd7 Qh6 Be6 Qc4 Bg4 Qb3+ Nb5+ Kg8 Bh8 Rf2 Qc7 Bg2 Qh1 Bh3 Qe7 Rfg2 Qf6 Qc4 Nd4 Qa4 Nf5 Qc4 Rb1 a1N Ne3 Qb3+ Ka7 Bd3 Ra2 Nc2 Rba1 Nb4 Kb7 Bc2 Qg7+
2q5/q1p3kn/R2nr1b1/KP2n1Np/3Q1nq1/p1PrB1bN/P1Q2P2/1Q5B b - - 1 2 legal: proof: e4 f5 h4 g5 d3 gxh4 d4 e5 dxe5 fxe4 c3 b5 Nd2 b4 Ba6 b3 Bc4 Bh6 Bf1 Bf8 Ndf3 Bg7 Be3 Bf8 Rc1 Ne7 Rc2 bxc2 b4 Ng8 Kd2 Kf7 g4 c1Q+ Ke2 a5 e6+ Kg7 g5 h5 e7 d5 e8Q h3 b5 a4 g6 h2 Qb3 a3 Qe6 d4 Bh3 Ra6 Bf4 e3 Kd3 e2 Kc4 e1N Qb2 d3 Ne2 d2 Qd5 d1Q Qbd2 Ng2 Qc2 Re6 Rf1 h1N Qb2 Nf6 Qd3 Qe3 Qbb1 Nh7 Neg1 Nd7 Re1 Ng3 Qdc2 Nf5 Ng5 Qa7 Be3 Nf4 Bg2 Qg4 N1h3 Nd6+ Kb4 Ne5 Bh1 Bb7 Rd1 Be4 Rd4 Qd7 Rc4 Bd3 Rc6 Qc8 Ra6 Be7 Ka5 Rd8 Nf7 Bh4 Nfg5 Kg8 g7 Bg6 Nf3 Kf7 g8Q+ Kf6 Nfg5 Bg3 Qe8 Kg7 Qc6 Nf5 Qf3 Rd3 Qe4 Nd6 Qd4
b1nr1r1R/Q2P4/4npPp/7n/2RBBq1P/1Qr1k1Pp/3q3R/N1n3bK b - - 0 1 illegal: No possible last move, all moves rejected
2q1n1r1/RQ2n3/r1kr1PP1/1p1p1B1Q/p1bbRn1q/8/P2B1P1N/2R3nK b - - 0 1 illegal: No proof kernel
K2n1b2/3Nqp1k/4rQ2/2N1q3/pp1PPP2/PQ2R1rQ/3B1bnR/3nbn2 b - - 0 2 illegal: No possible last move, all moves rejected
q1rrBQ2/1p2r3/2k1RP1q/4p1PR/1Qn4b/nbP2K2/pb2P1N1/Bb1R4 b - - 0 1 illegal: No possible last move
Q6Q/q1Npb1K1/5RPR/kPN1Q3/1b1P2bp/3rr2b/2P1pn1B/q1rn4 b - - 0 1 legal: proof: e4 b5 b4 g5 h4 gxh4 Bc4 f5 a4 fxe4 axb5 c5 Bb3 c4 b6 cxb3 Ke2 h5 Ke3 e5 f4 a5 d4 h3 g4 a4 b5 h4 b7 b2 f5 a3 f6 h2 g5 a2 g6 Qa5 f7+ Kd8 Qd3 Kc7 Qe2 Kb6 Na3 b1R Qf1 Ne7 Nh3 Nd5+ Ke2 e3 Kd3 e2 Ke4 e1B Kf5 e4 Qf2 e3 Ke5 e2 Bh6 Ne3 Kf6 Be7+ Kg7 Re8 f8Q Na6 b8Q+ Bb7 Q2f5 Nc5 Ng5 Qa7 Ne6 Bb4 Bf4 Rc1 Qh8 Nd3 Nb1 Nf2 Qfe5 Ka5 Nd2 Bf3 Ne4 Bg4 N4c5 Ned1 Rf1 h1B Nc7 Bg2 Bh2 B2h3 Qd8 Rf8 Qb8 Rf3 Qb7 Re8 Qa8 Nh1 Rf2 Rd3 Rf5 Nhf2 Rh5 Rb3 Rb1 a1Q Rh6 Rd3 Rb3 Rd2 Rf3 Rd3 Rf7 Bg5 Qed5 Ree3 Qe5 Be7 Rf6
5q2/Nnp1r1N1/nP3RRR/1Knb4/2P2pqP/1pbQ1q1r/2Qn1B1P/1k6 b - - 0 1 illegal: No possible last move
N1RQq3/bb1k3R/p2Pr3/1np3b1/5QK1/1PnR2p1/P1Pq4/1b1r1NBr b - - 0 2 illegal: No possible last move, all moves rejected
Q3q1bb/1KN2p2/2N1nb2/1pB3P1/n5p1/2RnrP1q/rPP1k1B1/1b1Q1N2 b - - 1 2 illegal: No proof kernel
B6n/2Nq2p1/P1r1r2P/5K1p/nBr3Qq/P1p1k3/b2b2P1/N1n1RBQn b - - 0 1 illegal: No possible last move
Nq4nR/2P1RQPQ/pp1nr1n1/1N1Q1r2/4k2b/2B3bp/b1PKb2P/4n3 b - - 0 1 illegal: No proof kernel
1N3Q1q/4bp1b/3PkNr1/KN2pPr1/prP1Q2b/4P1Bn/3Rr3/3n1b1R b - - 1 2 legal: proof: h4 d5 a4 c5 b4 g5 c3 gxh4 e3 d4 Bd3 cxb4 Bf5 b5 Bc2 d3 axb5 dxc2 g4 Kd7 d4 e5 Kd2 a5 f4 h5 b6 a4 g5 b3 c4 h3 Kc3 h4 g6 b2 g7 h2 b7 h3 d5 Be7 d6 Ke6 Kb4 Na6+ Kb5 Rh6 b8N Nb4 Ne2 Na2 Nec3 Rg6 Rg1 h1R Qh5 h2 Ne2 Nf6 g8Q Nc3+ Kb4 Nd1 Rg3 Ng4 Nbc3 b1R+ Bb2 c1B Ne4 Ngf2 Ng1 Nh3 Ne2 Bd2+ N2c3 Re1 Qhh7 h1B Nf6 Bg2 Qf8 Bf1 Rg2 Re2 Rf2 Rg5 Qe4 Be1 Rh2 Bh4 Nb5 Bb7 Rh1 Qc8 Ra3 Qe8 Rd3 Qd8 Rd2 Rg6 Qh6 Qh8 Qf8 Bd5 Nbd7 Rb8 Ka5 Bb7 Bd4 Rb4 Bc3 Re8 Nb8 Bc8 Qh6 Reg8 Qf8 Bd7 Rd4 Rg5 Be1 R8g6 Bg3 Bc6 Rd2 Ba8 Qd3 Be4 Qc2 Rg7 Qb1 Bh7 Qe4 R7g6 f5+
Q1Bb1n1b/K1p4r/1nQ1R1b1/RpP2N1q/1p1n4/Rr1Pk3/PP1b4/N3n3 b - - 1 2 illegal: No possible last move
2N5/K3p2N/1p1qPr1r/P1RnB2r/qk2pb1Q/1Pq3P1/1R1b1N1Q/b4b2 b - - 0 1 illegal: No proof kernel
3k1qq1/PNr1r2p/6N1/3pq2b/K1P1Q1b1/pR1Pb2P/1R2q1Qn/4BN1r b - - 0 1 illegal: No proof kernel
5r2/NP1n4/2Q1p1nr/1r2kq2/pP3R1p/P1q2B1P/rbRB3K/R2nn1Q1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a3 b5 g5 b4 Nc3 b3 Na2 bxa2 g6 Be6 b4 Bb3 cxb3 fxg6 Qf3 g5 Qd1 g4 f4 Kd7 Kf2 Kd6 Kg3 h5 d4 g5 f5 a5 d5 c5 b5 c4 b4 h4+ Kg2 e3 h3 e2 b6 e1N+ Kh2 e6 b7 c3 f6 c2 f7 a4 Qd4 Ne7 Qa7 Qa5 Nf3 g3+ Kg1 g4 Bb5 g2 Bh6 c1Q Qf2 Ng6 Ne5 Bg7 f8R Qc3 Be2 Nd7 Bc1 Rh6 Rf3 Rf8 Kh2 g1N Bd1 Ne2 Nc6 Bd4 Na7 Ke5 d6 Qac5 Rb1 a1R Bd2 Ra2 Rf4 Qa5 Rb2 Qb5 Rf1 g3+ Kh1 g2+ Kh2 g1R Rc2 Rg5 Qg1 Nc1 Bg4 Ncd3 Bh5 Nf2 Bf3 Nc5 d7 Nd1 d8Q Nd7 Qc8 Qbd3 Rf7 Qf5 Qe8 Qb3 Qc8 Bb2 Qc6 Qc3 Rf6 Rg4 Rf7 Rd4 Rf6 Rd5 Rf7 Rb5 Rf6 Qg5 Rf4 Qf5 Bg4 Nf3+ Kg2 Nf2 Ra1 Ne1+ Kh2 Nd1 Bf3
QBb2Rqb/r5Rp/p1bN4/PNP4r/Pn4p1/2r1Q2n/P1knKp2/7Q b - - 0 1 illegal: Other
q2Q4/2RN3p/1nRq1pQ1/q2r1P1p/npBk1b2/3P1Q2/1P3r1P/3bn1NK b - - 1 3 legal: proof: a4 d5 e4 dxe4 d3 c6 Bh6 gxh6 Nd2 b6 Nb1 b5 axb5 cxb5 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 e5 c4 a5 g5 h5 g6 a4 g7 a3 Qc2 a2 Qe2 e3 Qe1 e4 Qd2 e2 Qc3 e1Q Qa5 e3 Qd2 e2 Na3 Ne7 g8Q Ra5 Qg4 Kd4 c5 Qd6 c6 Na6 c7 Nc5 Nc4 Bh6 Qd1 Nd5 Qg6 Bg4 c8Q Rf8 Rc1 a1Q Ne5 Na4 Nd7 Ndb6 Rc6 b4 Qd8 Rd5 Rc7 Qc3 Rc6 Qcc5 Rc7 Qa5 f5 f6 Qc2 Rf7 Qc6 Bf4 Qca8 Re7 Qb7 Rc5 Qf3 e1N+ Kf2 Ree5 Qe2 Qa8 Nh3 Ng2 Kg1 Rc2 Qd1 Qa3 Be2 Nc5 Bf3 Q3a6 Bd5 Qa5 Qf1 Be2 Qf3 Nca4 Ba2 Rd5 Bb3 Ne1 Ba2 Rd2 Bb3 Nc2 Kg2 Q5a6 Rc1 Qa5 Kh1 Bd1 Ng1 Ne1 R1c6 Rf2 Bc4
2rb1R1b/pK5b/P3n1q1/q1Q2P2/2P2knB/p1rp2r1/p2P1B1B/1QR4N b - - 0 2 illegal: No proof kernel
2R2BB1/nQ1nNnP1/K2RPk1b/1p2q3/1PQqP1r1/1p2bb2/pp5B/2r5 b - - 0 1 illegal: No proof kernel
2Rn1N2/1q2n3/P1p1bK1Q/1p1q1N2/2r3qp/RrPP2p1/k1n1B2P/b2Q3R b - - 0 2 illegal: No possible last move, all moves rejected
Q1r2N1R/2rp1p1r/b2RnKR1/2N1BPP1/1nq1p3/2b2qQ1/pP3P2/4k1q1 b - - 0 1 illegal: No proof kernel
1NQ2b2/1bpNQp2/4p2k/K3PP2/1P1q2B1/b2Pn1q1/4Rr1p/1R1nR1nr b - - 0 2 legal: proof: h4 d5 c4 b5 h5 b4 b3 dxc4 h6 gxh6 Qc2 h5 Qd1 h4 Bb2 a5 a3 a4 axb4 a3 b5 axb2 e4 h5 g4 c3 f4 e6 e5 c2 b6 c1B b7 h3 g5 h4 g6 h2 g7 h3 f5 Qd4 Nc3 b1Q Ne4 Qdd3 Be2 Qd4 Nc5 Nh6 g8R Ra2 Bg4 Ba3 Ne2 Nc6 b8Q Qbd3 Rb1 Rb2 Rg1 h1N Nd7 Nf2 Qc2 Rh7 Qc5 Qg3 d3 Rd2 Qa8 Rc2 Qa6 Bb7 Rf1 Nd1+ Rf2 Rc1 Kd2 h2 Rf1 Rg7 Re1 Rg6 Nf4 Rg5 Nd5 Rg7 Ne7 Rg5 Bf3 Ng4 b4 Nge3 Bg4 Na5 Nc6 Nac4+ Ke2 Rg7 Ncb8 Nd2 Qcd6 Nf3 Qa8 Ng1+ Kd2 Nc3 Re2 Rf1 Rbe1 Rf2 Qaa6 Nf1+ Kc2 Nd1 Kb3 Nfe3 Ka4 Rg6 Bf3 Rg4 Kb5 Rf4 Bg4 Rf1 Qa8 R4f2 Qc5 Nh3 Qa6 Rh1 Ka5 Ng1 Qcb5 Bd5 Qc8+ Ke7 Qb6 Bb7 Qc5+ Qd6 Rh8 Bc1 Rh4 Bh6 Bh3 Ba3 Rc4 Bg7 Qb6 Qd4 Bg4 Bh6 Rc1 Bg7 Rb1 Bh6 Nf6 Bg7 Ne8 Kf8 Qc5+ Kg8 Qe7 Kh7 Nf6+ Kh6 Nfd7 Bf8 Ra1 Bc6 Rc1 Bb7 Rb1
rB3N2/r4q2/qpkb1n2/2nBP1p1/1P1P1P1p/Qnrb4/Qp4K1/3N2RN b - - 0 1 illegal: No proof kernel
R4br1/P2k3r/1P2p2p/2PN4/qQQ4N/p2rP1q1/K1n1n1Rp/2bbN2B b - - 0 1 illegal: No proof kernel
1Q4nQ/7r/Pp1R1pkP/2pp1Nqq/2b1B1rP/qPbb1n2/1B6/1Q2R2K b - - 0 1 illegal: No proof kernel
1r2r1q1/Npp4n/1nB2B1K/1B2P1N1/qR3p1p/3P2n1/1P1Q1kPQ/3bb1r1 b - - 0 1 illegal: No proof kernel
1K3B1b/p1Qp3k/1pQP1n2/n3r1r1/1PQR3N/5Pr1/1rP2q1p/NB3br1 b - - 0 2 legal: proof: e4 g5 b4 f5 h4 gxh4 a4 fxe4 a5 Nc6 a6 Nb8 Ra5 Kf7 Rb5 Ke8 Rb6 cxb6 axb7 Bg7 Bb2 Bh6 Bc1 Bf8 Ke2 Kf7 Ke3 Kg7 Kf4 e5+ Kf5 h5 d4 h3 g4 h4 f3 h2 d5 h3 g5 e3 g6 e2 Nd2 e1R Ne2 e4 Ke5 e3 Nb3 Qh4 Ng3 e2 Na1 Nf6 Bh6+ Kg8 g7 Kh7 Qd2 Rg8 Nf5 Rb1 Qc3 Rb2 Qc6 Qf2 Nh4 e1R+ Be2 Rg1 Bc4 Rg3 Rd1 h1R Rd4 h2 Ba2 Rhg1 Bb1 Bc5 Qe6 Be7 Qc6 Bd8 Kd6 Re8 Rf4 Re5 Rd4 Be7+ Kc7 Bf8 Qe6 Nc6 b8Q Na5 Qc6 Ba6 d6 Bf1 Qbb7 Rd8 Qc8 Reg5 Kb8 Re8 Qd8 Ree5 Qdc7 Rg6 Bd2 R6g5 g8Q+ Kh6 Bc3 Bg7 Qgc4 Bh8 Bd2 Kh7 Bf4 Rg6 Bh6 R6g5 Bf8
r5Bn/p3Kp2/bk1pQQ1b/1R2N3/r3P3/q1n2P1p/P1Pn4/1nQ1nN1B b - - 1 2 legal: proof: d4 e5 h4 exd4 b4 g5 h5 c5 bxc5 Nf6 Nd2 Ne4 Rb1 Nf6 Rb3 Ng8 Rc3 Bh6 Rch3 Bf8 g4 h6 Rh4 gxh4 g5 Bg7 g6 Bf8 Nc4 Na6 Bg5 hxg5 Nd2 Nb8 e3 b5 Ke2 g4 Kd3 g3 Ke4 b4 Kd5 b3 h6 b2 c6 b1N c7 d3 g7 h3 h7 d6 Qc1 Kd7 Nb3 d2 Na1 d1N Bd3 g2 Be2 Na6 Bf3 Nc5 Nb3 Nd3 Nd2 Ba6 Nf1 Ne1 Be4 Qh4 Nf3 g1N Ne5+ Kc8 Bf3 Kb7 c8Q+ Kb6 Qe6 Qb4 e4 Qa3 Bg2 Ngf3 Rg1 Rb8 Bh1 Nfd2 f3 Ra8 Rg5 Ne7+ Kd4 Ng6 Kd5 Rg8 h8Q Rc8 Qh6 Nh8 Qhf6 Rc4 Rf5 Ra4 Rg5 Ka5 Kc6 Ndc3 Kd7 Kb6 Kd8 Be7+ Kd7 Ra8 g8B Bf8 Rh5 Bh6 Ke7 Bc8 Ng4 Ba6 Rb5+ Kc6 Ne5+ Kc7 Rc5+ Kb6 Rb5+
5r2/nPb2P1p/6bP/bQ2bN2/n4pN1/1np1RrqP/2pBK1BQ/k2B4 b - - 0 1 illegal: No proof kernel
2rN1Q2/3nRbP1/3P4/1Nb1ppbp/1qpPPrk1/4N3/R2r3r/K4nBQ b - - 0 1 illegal: No proof kernel
3N2qr/3QP3/pBB5/Qn1p3r/P3bP1b/2k1ppPR/K1b1Rrr1/1B2n3 b - - 0 1 illegal: No possible last move
n1b4R/1R1pB3/1Pq1pBKn/2n4r/P1k3Qp/3Bpq1P/1r1bP3/1Nn3Q1 b - - 0 2 illegal: No proof kernel
4r1R1/bnr2rp1/4B1P1/Q2K1bRr/Np1Bnp2/PPqk4/1qp2P2/3R1Q2 b - - 0 3 illegal: No possible last move
k2Bb1R1/4pq2/RKP2bQq/1nrP1nPr/2B3p1/b1p3P1/2p4b/NQ1Q4 b - - 0 1 illegal: No possible last move, all moves rejected
R7/p1q1Rpqn/q1N1pP2/qp3bn1/kPB2P2/1BK1P3/Br6/r1Q3Qb b - - 0 3 illegal: No possible last move, all moves rejected
B5n1/1b1Q1q2/1p2pp1N/R1qQ1r2/Rb3r2/NPP1PbP1/4kpbK/5Nn1 b - - 1 2 legal: proof: f4 a5 d4 c5 b3 cxd4 g3 g5 Bb2 gxf4 Kd2 a4 Ke1 a3 h3 axb2 Qd3 Qb6 Qd2 Qe6 Qd1 Qg4 hxg4 Ra7 Bg2 Ra5 Bf1 Ra8 Kf2 h5 Kg2 d5 a4 Kd7 g5 Kc6 g6 Kc5 a5 e6 g7 f6 a6 d3 a7 Kd4 c3+ Ke3 Rh4 b6 Na3 b1Q Rh3 d4 Ra2 d2 Rh2 f3+ Kh1 d3 Nb5 f2 Ra3 h4 Rg2 h3 Kh2 Rh4 Ra4 Nd7 Nd4 Bb7 Ndf3 Rf4 Kh1 h2 Ne5 Bb4 Ngf3 Qa1 Rg1 Qa3 Kg2 h1B+ Kh2 Bg2 Rh1 Rc8 a8Q Rcc4 Qa5 Rf5 Qd5 Rcf4 Rg1 Nf8 Qd7 Nh7 Rh1 Ng5 Nc4+ Ke4 e3 Nh3 Ra5 Ng1 Ra4 Be7 Ra5 Qc5 Na3 Bd6 Qc1 d1Q Qd2 Qb1 Qd1 d2 Ba6 Ba8 Bb7+ Kd3 Bd5 Bb7 Ra4 Ne7 g8N Qa1 Nh6 Ng8 Ng5 Be7 Ne4 Qb1 Qf3 d1B Nd2 Qa2 Qh5 Bdf3 Nf1 Ke2 Qg5 Ba6 Ba8 Bab7 Qd5 Qd2 Qg7 Qdd4 Qf7 Qc7 Qg7 Bb4 Qgd7 Qdc5 Nd2 Nh3 Ra1 Ng1 Ra5 Qb8 Nf1 Qe8 Nb5 Qef8 R1a4 Qf7 Na3
5N2/PBrRb1Bp/q1p1pb1r/P1N1P2P/5b1Q/K6k/bn1bQ1p1/1r5B b - - 0 1 illegal: No proof kernel
b4B1K/1Qb4R/P1Q3q1/3Bp1pp/1q2pqnr/Q2r4/2P1k1PP/b2q1N1R b - - 0 1 illegal: No proof kernel
2k2Qnr/r4Q2/1p6/1Rrb1Bp1/5Bp1/rPp2N1b/R1PbP1nP/b2K2Q1 b - - 0 1 illegal: No possible last move
B5Q1/P1rnNK2/6rq/kbQP3R/3p2p1/pP3BPn/Np2prn1/b3B3 b - - 0 1 illegal: No proof kernel
1RR5/n1N1KNkp/rp2Q1p1/r5QP/1P2B1p1/b4PP1/2q1pRn1/r4n1b b - - 2 3 legal: proof: a4 b6 a5 d6 axb6 cxb6 e4 d5 b3 dxe4 Bb2 f6 Bd4 Bf5 Be3 Bc8 Bg5 fxg5 Ke2 Kf7 Ke3 a5 h4 e5 d4 g6 c4 a4 c5 a3 d5 g4 h5 a2 g3 Qd6 c6 Bb7 f3 Kg7 c7 Nh6 c8R Ba6 Nc3 Nc6 Qe1 Qc7 d6 Na7 d7 Ba3 Nd5 Qc2 d8Q Be2 Rd1 a1R b4 Rg8 Rh2 Nf5+ Kf2 Ne3 Qg5 Rd8 Nc7 Rd5 Nh3 Ra5 Rdd8 Bb5+ Be2 Nf1 Rb8 Ra6 Rdc8 e3+ Kg2 Qa4 Bd3 e2 Kf2 e4 Rg2 Qc2 Rh2 Nd2 Ke3 Nf1+ Kd4 e3 Ke5 Ra5 Kd6 Ba6 Qf2 e1N Ke7 Ng2 Qe1 Nf4 Kd7 Nd2 Rf8 Nc8 Qd8 Ra7 Bf5 Bf1 Rf2 R7a6 Ng5 Bg2 Nf7 Na7 Qg5 Bh1 Ke7 Ng2 Rfc8 Nf1 Qe2 Rd5 Qc4 e2 Be4 Rda5 Qe6
2K1n2B/prQ1bP1R/BPr1kpB1/3QN1b1/1pR2n1p/3b2qp/PP6/r7 b - - 0 2 illegal: No proof kernel
4KB2/qk2P1NR/4p2r/bp1p1n2/r2Pp3/q2QPPQ1/p1n2N2/Qb2Rn2 b - - 1 2 illegal: Other
B1n5/qr3knp/1PBQ3K/pr2N1P1/pqp3P1/P1p5/b2r3Q/NR2B1b1 b - - 0 1 legal: proof: f4 b5 h4 e5 c4 exf4 c5 g5 hxg5 d6 Rh3 dxc5 Rh1 c4 b4 Ne7 a3 Bg4 Ra2 Bc8 Rc2 Ng8 Rc3 Bg4 Rc2 Be6 Rc3 Bc8 Rch3 Nf6 Rh6 Ng8 Ra6 Nc6 Ra5 Nb8 Ra4 bxa4 Kf2 f5 Kf3 a5 g4 c5 e4 c3 d4 Ne7 b5 Qb6 e5 Be6 d5 Ra7 d6 Ba2 d7+ Kf7 d8Q c4 Bd3 Rb7 Qe2 Qa7 b6 Nd7 Qh2 Nc8 Nd2 Nc5 Be4 Ne6 Qd6 Ng7 Nb3 Be7 Bd2 Rd8 Kg2 f3+ Kh3 f2 Kh4 f1R Be1 f4 Na1 f3 Bc6 f2 Nf3 Rg1 Be4 f1Q e6+ Kg8 Ne5 Qf8 Bg2 Rf1 Rg1 Rf5 Bh1 Bf6 e7 Rdd7 e8B Rd8 Qb4 Rd2 Bec6 Be7 Bhg2 Bc5 Rf1 Bg1 Qd6 Rb8 Ba8 Rb7 Bc6 Qe7 Qg6 Qb4 Qd6 Ne6 Kh5 Kg7 Nf3 Rb5 Ne5 Kg8 Kh6 Ng7 Bf2 Rb2 Rb1 Rd2 Qb8 Kf8 Be1 Ke7 Qc7+ Kf8 Qd6+ Kg8 Nd7 Kf7 Ne5+
2Nq1b2/pPn2Nqp/Pp2p3/P3n2k/R4p1r/B1rbP1Q1/1K3R2/Q3r1N1 b - - 0 2 illegal: Other
7b/3pn3/P1RR3P/2pnQ1pk/4Pr1Q/1b1Np2q/1pP1Nq2/1K1BQqr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d3 hxg4 Bh6 e5 d4 f5 Be3 f4 dxe5 fxe3 h4 Kf7 f4 Kg6 a4 c5 f5+ Kh5 f6 g5 e6 b5 e7 b3 a5 b2 a6 b4 f7 b3 e8Q Ne7 Be2 Nd5 Qe5 Bg7 f8Q Nc6 Qfd6 Nce7 Na3 b1Q Nc4 Bb7 Nb2 Qc7 Qc1 Raf8 Kd1 Rf4 Nd3 Qc6 Qb8 Qe6 Bf3 Rhf8 Ne2 Bh8 Ra4 Bc6 Rd4 Qa1 Qb1 Ba4 Kc1 R8f6 Rd1 Rh6 Rb4 Qf5 Rb6 Qh7 Bh1 g3 Rc6 g2 Qbd6 g1Q Bf3+ Rg4 Qg3 Rf6 Qde5 Qf2 Rd2 Rf4 Rd1 Qc3 Qa1 b2+ Kb1 Bb3 Qa5 Qc4 Qe1 Qf5 Rd2 Qe6 Rd1 Kh6 h5 Qb5 Qh4 Rg1 Qg3 Kh7 h6 Kg6 Rd2 Qc4 Nd4 Qb5 Bd1 Qc4 Ne2 Kh5 Ndc1 Qg4 Rd4 Qh3 Nd3 Nb4 Rdd6 Qf7 Qd2 Nbd5 Qe1 Qff5 Nb4 Qhf1 Nd3 Q5h3 Qh4+
8/1BQppq2/RKnP3b/4PqP1/4nNp1/q3Q1p1/RBp1Pr2/2rkB1n1 b - - 0 1 illegal: No proof kernel
1B6/b1r1nppp/5R2/Q2P3B/n1npbP2/pqRPq1P1/NBQ4k/K3b3 b - - 0 3 legal: proof: e4 a5 a4 c5 b4 b5 h4 bxa4 b5 d5 h5 d4 h6 Qc7 Nc3 Qh2 Na2 Ra6 Nb4 cxb4 Qf3 Rd6 Qd1 Rd5 exd5 Qxh6 Rb1 Qd6 Ra1 Qh2 f4 e5 c4 Ke7 g3 Kf6 c5 Kf5 d3 e4 b6 a3 b7 b3 c6 a2 c7 e3 Qf3 a4 Kd1 a3 Bd2 b2 Kc2 b1N Qe2 Nd7 b8B Bc5 Be1 Nd2 Rd1 a1Q Ba7 Ne7 Rc1 Nb6 Bb8 Qf2 Rh6 Ndc4 Qd2 Kg4 Ne2 Na4 Rf6 Bf5 c8Q Qc3+ Kb1 Qb3+ Ka1 Ba7 Nc3 e2 Na2 Qe3 Rc3 Rg8 Qc5 Rc8 Qc2 Rc7 Qa5 Be4 Bh3+ Kf3 Bg4+ Kg2 Bh5 Kh2 Bd2 e1B Bc1+ Qe2 Bb2 Qd2 Qb1 Qe3 Qc2+
q3k2K/pRp4N/P1pQ1P2/bB4Bp/qB3bb1/2n5/1QPr1p1P/R4qn1 b - - 0 3 legal: proof: e4 d5 f3 dxe4 Nc3 Qd5 Nce2 Qd7 Nd4 Qd8 Nc6 bxc6 Nh3 f5 Ng1 Na6 Bd3 Rb8 Bf1 Rb5 g3 f4 g4 Rf5 gxf5 exf3 Kf2 h5 d4 e5 a4 g5 b4 e4 d5 g4 f6 Nb8 a5 Ne7 b5 Bh6 d6 Nd5 a6 Nd7 b6 Ne5 b7 Nc3 b8Q g3+ Ke1 g2 Kd2 f2 Qb2 Rg8 Nf3 g1Q Ng5 f3 Ke3 Qg4 Bb5 f1Q Kd4 f2 Nh7 Bf5 Bg5 Qa8 Ke3 Nf3 d7+ Kf7 d8B Ke8 Qd4 Ng1 Be7 Qh4 Qe5 Bg4 Kf4 e3 Qd6 e2 Ke5 e1B Bf8 Bf3 Kf5 Qa4 Ke6 Rg7 Kf5 Rd7 Kg6 Nh3 Rg1 Be2 Rg4 Ng1 Rb4 Bg4 Bc4 Nge2 Rb7 Ng1 Bb5 Rd8 Bh4 Bg5 Kg7 Bf4 Bg5 Rd7+ Kh8 Rd8 Qd1 Rd2 Bb4 Rd5 Qe2+ Ne4 Bf8 Ba5 Qd2 Nc3 Bb4 Rd8 Qd4 Rd6 Qc5 Rd2 Qd6
K3R1Q1/p1rp4/q2P1p2/2Qp3R/2nb1p1B/2NP1Pn1/2k2RPn/1n2N1rr b - - 0 2 illegal: No possible last move
Kn3r2/Q5pR/ppR2P2/1Q3p2/N1rp3P/1PNbnnP1/2n1r1N1/3q2kB b - - 0 1 illegal: No proof kernel
rQR4Q/2Ppp1Kp/1q2R3/PNNk1b2/1p2P1n1/r1BP4/1pRnb2p/6r1 b - - 0 2 legal: proof: g4 c5 h4 g5 b4 cxb4 f4 gxh4 g5 a5 Bg2 Bh6 g6 Bg5 Bd5 a4 Bb3 axb3 fxg5 Ra5 Rh2 Ra7 Rh1 Ra8 Kf2 b5 Kf3 f5 Kf4 b2 a4 h3 c4 b3 c5 b4 e3 h2 g7 Kf7 c6 Ke6 d3 Qa5 c7 Kd6 g6 Qa6 Kg5 f4 Nd2 b1R Bb2 f3 Ne4+ Ke6 Bc3 f2 Nc5+ Kd6 Ne2 f1B Nd4 Qb6 Nb5+ Kd5 a5 Nh6 g8R Na6 g7 Ng4 Rg1 Be2 Ra2 Bb7 Rc2 Ra1 Rc8 Ra3 Qa1 Rg8 Rf1 Bc6 Rf6 Bb7 Re6 Bc6 Na4 Nc5 Kh5 Ne4 Nc5 Nd2 Qb2 Rf8 g8Q Rf1 Qe8 Rg1 Qf8 Nf6+ Kh6 Ng4+ Kg7 Bb7 Qc1 b2 Qh8 Bf3 Qf1 Be4 Qff8 Bf5 Qd8 Bc6 Na7 Ba4 Nb5 Bb3 Rc1 Bd1 Rc2 Bf3 Rb8 Qb7 Qc8 Qc6 Qb7 Bd1 Rc8 Be2 Qb8 Qb6 e4+
2B1bQq1/pr2p3/2Pnq1Pp/2nR4/krP1pN1K/p6P/1R1N1p1Q/N5b1 b - - 0 1 legal: proof: e4 b5 d4 f5 f4 fxe4 a4 bxa4 f5 c5 dxc5 g5 Bf4 gxf4 Kf2 d5 b4 Kd7 g4 Kc6 c4 d4 g5 f3 Kg3 a3 f6 d3 f7 h6 g6 d2 Kh4 Nd7 Nh3 Rb8 Qe2 d1Q Nd2 Ngf6 Nf4 Bg7 f8Q Rb7 Rb1 Ne8 Bh3 Nd6 Rb2 Bd4 b5+ Kc7 c6 Kb6 Rg1 Ka5 b6 Nc5 Rg5 Bd7 Rd5 Be8 Bc8 Bg1 h3 Ka4 Qg2 f2 Qh2 Rc7 b7 Qe2 b8N Rb7 Na6 Qf3 Nh5 Qf5 Nb4 Qe6 Nc2 Rg8 Qg7 Rf8 Na1 Rf3 Qg8 Rfb3 Nf4 R3b4 Bd7 Qc8 Qf8 Qg8 Bf5 Qce6 Bg4 Qef7 Bd7 Qe6 Bc8
K2Nbk2/2rpP3/p1p1pr2/B2q3B/PRqb3r/2Q3pp/2BPP2Q/N2n4 b - - 0 3 illegal: No possible last move, all moves rejected
b5b1/P3bBp1/7p/1qk2pN1/p1PpR3/Q1Bp2p1/PRr1rP1R/Q5nK b - - 0 1 illegal: No proof kernel
3rQ3/Rpb1kp2/qP5q/pb2B1R1/PNR2q1N/2Qn4/KP3Pqq/1n2br2 b - - 0 1 illegal: Other
Q2n4/Kp2N1pN/1BNr1pq1/2br2P1/4nk1n/1QP2P2/1P1n1rRR/3b2qb b - - 0 1 illegal: No proof kernel
7n/rrppn3/Q1P2p1R/Qbb1q3/1qrPk1Nr/1NQ5/1r2rP1P/2K1R1B1 b - - 0 1 illegal: Other
B1R2b2/pQ1rNqRb/Qp1rp3/r3Ppb1/1P3k1N/bn2PPR1/6K1/2nn4 b - - 0 1 illegal: Other
1N2nq2/1p1r2n1/1B3p2/b2p1PBQ/1k1K2Pr/5p2/NPrPb1Bn/b1QR1b2 b - - 0 1 illegal: Other
rnQ2Nrb/1kq3pB/4bnPb/b2n3R/2QPNn2/N1pp4/R1PP1p2/2K5 b - - 0 1 illegal: Other
7q/2r1qnP1/K1R3rp/b7/pq1NP1n1/Bb1BR3/1PR1PB2/qN2rk2 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 c5 f3 cxd4 c4 g5 h4 gxh4 Qc2 e4 Qc3 dxc3 fxe4 Bc5 Ra5 Be7 Ra1 Bf8 g4 Ke7 b6 Ke6 g5 Ke5 b7 Kd4 g6 a5 c5 d5 g7 f5 c6 h3 c7 f4 Bd2 h2 Kd1 f3 Kc2 a4 Bh6 f2 Bd2 Be6 c8R Nh6 Bg2 f1R Nh3 Qe7 Nf4 Ng4 Rd8 Nc6 b8B Ra6 Nd3 Re1 Bh3 Nce5 Rf1 h1Q Ra3 Nf7 Bdf4 h6 Bfe5+ Ke3 Rf4 d4 Nc5 Bd5 Rd7 Rg6 Rf6 Qg1 Bf4+ Kf2 Kd3 c2 Ne6 c1Q Bbd6 Qc8 Rc7 Bb3 Rc2 Qcb7 Bc5 Qb4 Ba7 Qh2 Bd6+ Kg1 Bdc5 Qhb8 Bd6 Ne3 Bf5 Kf1 Bac5 Ng4 Bg3 Qeb7 Bf2 Be7 Bd6 Bd8 Be7 Ba5 Bd6 Rg5 Bh7 Rc8 Bg8 Rc7 Be7 Nh8 Bf7 Q8c8 Be8 Nf7 Bb5 Qh8 Bc5 Bd5 Rac3 Bb3 Bc4 Q4b6 Ba3 Qb4 Rf3 Qa7 Re3 Rg6 Bb5 Qb7 Rc6 Qe7 Ba6 Qbb4 Nc3 Ba2 Nc5 Qbb8 Nb3 Qb7 Kc4 d3 Nb1 d2 Nc3 d1Q Bb5 Qa1 Nb1 Qba8 Ba6 Qad8 Kb5 Qd2 Nd4 Bb3 Rf3 Bc3 Re3 Bb4 Kb6 Qc3 Bb5 Ba5+ Ka6 Qcb4 Bd3
KR3qNb/2R1Bp1B/p1P1n3/1Pr1q1P1/4k2q/1Pq1N3/b2b1BR1/3b1n2 b - - 0 1 legal: proof: d4 b5 e4 d5 f4 g5 a4 gxf4 axb5 c5 g4 h5 g5 a6 Qg4 hxg4 Ke2 Ra7 Kd1 Rd7 Kd2 cxd4 Ke1 d3 Bh3 d4 Bf1 Rd5 exd5 Be6 Kd1 Bf5 Ke1 Bc8 Kd2 Kd7 h4 Kd6 c4 Ke5 c5 f3 h5 g3 d6 f2 d7 g2 h6 Nc6 h7 Ke4 Ne2 g1B Na3 e5 Nf4 Nh6 Rh2 Ng4 Ra2 Bg7 Nd5 Qf8 d8R Ne3 Nc4 Be6 Ra8 Nd8 Rg2 Bh2 Be2 f1Q Rb8 Qh1 Ne7 Bf4 Ng8 Qh4 Ra3 Bd5 Rc3 Ne6 Bd1 Bf6 Bc2 Bg7 Ne7 Rg8 h8B Bf6 Bb1 Rg6 Ng8 Nf1+ Kd1 Rh6 Ne3 Ba2 Nf5 Bd2 b3 Rg6 Bg7 Rh6 Rc4 Rg6 Bh6 Bh8 Bg7 Rh6 Bf6 Rg6 Be7 Rf6 Nfh6 Rf5 Ba3 Kf4 Rc2 e4 Bb4 Re5 Nf5 e3 Ba5 Ke4 Bb6 Be1 Kc1 e2 Kb2 d2 Ka3 d1Q Ka4 d3 Rc3 Qc1 Ka5 Qe3 Ba7 Qef4 Kb6 Bd2 Kb7 e1Q Ka8 Qfh2 c6 Q2g3 Bf2 Rc5 Rc1 Qe5 Rd1 Bf4 Bc2 Q1c3 Bb1 Kd5 Re1 d2 Re3 d1B Rd3+ Ke4 Rd7+ Kf3 Rc7 Bc1 Ng7 Bd2 Bh7 Kf4 Nf5 Ke4 Ne3+
K2R4/1r1b1R1q/7p/N1pPNb1k/P1qn3P/2B2pnN/2nPrp1B/3B4 b - - 0 1 legal: proof: c4 b5 f4 g5 cxb5 a5 b4 axb4 e3 gxf4 Qf3 d5 Qe4 Bg7 Qc4 Bd4 exd4 dxc4 Ke2 f5 Kf3 Kf7 g4 Kg6 h4 e5 a4 c5 g5 b3 b6 e4+ Kg2 e3 Kf3 h6 b7 c3 Be2 c2 Na3 b2 Nc4 b1B Na5 Nf6 Nh3 Rh7 Rg1 Nc6 b8B Ne4 Bd1 e2 Bb2 c1Q Bc3 Kh5 g6 Qg8 g7 Bd7 d5 Qh8 g8N Ng3 Ne7 Qg8 Bbe5 Re8 Ng6 Rg7 Bd6 Qh7 Ne5 Bc2 Rb1 Bd3 Rf1 e1N+ Kf2+ f3 Ke3 Ree7 Kf4 Nd4 Rb8 Nec2 Rd8 Re6 Nec4 Re2 Bb8 Rg2 Ke5 f4 Kd6 Re2 Kc7 B3f5 Kb7 Rge7 Ne5 f2 Ka8 f3 Rg1 Qa1 Bc7 Qa2 Bd6 Qc4 Bc7 Nf1 Rg7 Ng3 Bd6 Bde6 Rf7 Rb7 Bb8 Bd7 Ng6 Nh1 Bh2 Ng3 Ne5
3k1r2/2bq1b1p/Pr3p2/3P2Bb/4p1P1/R2N1PR1/pBK2pBr/2R3bN b - - 0 1 illegal: No proof kernel
3bB3/qPq1PnK1/1B1RbNpB/3rb3/1pkPN1r1/1n6/bP4R1/1R2b2n b - - 0 1 illegal: No proof kernel
1q1Rnk1q/P1p2r2/2PN4/prb3B1/1q1NB3/1q4RP/Pr3rR1/B1K1n1r1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 f5 g5 a5 g6 b6 b5 f4 Qh5 Ba6 bxa6 hxg6 Qd1 g5 Qf3 g4 Qg3 fxg3 Kd1 e5 d4 g5 c4 e3 f4 e4 h3 b5 a7 b4 c5 e2+ Kc2 e1R d5 e3 f5 b3+ Kb2 g2 d6 g3 f6 g4 c6 e2 Bg5 Na6 Nf3 g1Q Bc1 g2 Nh4 g3 Rh2 Qb8 Nf5 Rh5 Nd4 Rb5 Nf5 Nc5 Bf4 Qd4+ Nc3 g1R Nh4 g2 Rc1 Nd3+ Kb1 b2 Kc2 b1R d7+ Kf7 d8B Bc5 Ne4 Kf8 f7 Qh8 Nd6 Nf6 Be5 Ne8 Bg5 R1b4 Kd2 Rb2+ Rc2 Rc1 Nf3 Ne1 Nd4 Rcb1 Ke3 Rc1 Rc3 Rcc2 Rb3 Nd3 Ra3 e1Q+ Be2 Qb1 Bf3 Ne1 Be4 Rf2 Rb3 Qc2 Rc3 Qb3 Rd3 Rh1 Rc3 g1Q Rg2 Nc2+ Kd3 Qb1 Bef6 Rg1 Be5 Rf5 Kd2 Rff1 Rcg3 Rf2+ Ne2 Qf1 Bef6 Ne1+ Kc1 Qb4 Nd4 Qd3 Bd2 Qdb3 Bc3 Rbe2 Ba1 Rb2 Bg5 Qb6 Rg4 Rd8 R4g3 Qb8 Bf4 Rd7 Bg5 Kg7 f8R Re7 Rf5 Rf7 Rd5 Kf8 Nb7 Rg7 Rd8 Rgf7 Nd6
n4K2/bNp1P3/R1P1BN1k/pb1npr2/1b2r1n1/2P4b/2R2NPB/4b1Bq b - - 0 1 illegal: No proof kernel
nn2r1q1/4b1P1/1p2k2R/5PBP/br2rn1B/p3pB2/2rNP3/1qRN1N1K b - - 0 1 illegal: No possible last move
r1B5/1bN2p1n/r1R2p1B/P2P1qbP/4NP1R/2q2RKb/1p3nN1/3q1b1k b - - 0 1 illegal: No proof kernel
n1KNrb2/1R1p3k/1B2N2n/PB2pr2/1nNP2b1/2p2qPb/1b1P2R1/2n2B2 b - - 0 1 illegal: No proof kernel
4NBqN/1R1R1B1r/1P4r1/3r1pR1/1KPqPnbn/pnpN2p1/P4k2/b7 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 c4 e5 Qb3 exf4 Qa3 b4 Qc3 bxc3 h4 Ke7 e4 Kf6 b4 Ke5 h6 d5 b5 a5 h5 g5 h7 a4 h6 g4 b6 d3 Bh3 Kd4 Bg2 g3 Kd1 f3 Na3 d2 Kc2 Ke3 Rh4 f2 Nh3 f1N Nb5 d4 Bf3 d3+ Kb1 Bg4 Bb2 d1Q+ Bc1+ d2 Na3 f5 Nb5 Nd7 Nd6 Ne7 Rh5 Nh2 Nf2 Nc5 Ne8 Ng6 Rg5 Nb3 Be2 Nf4 Nd3 Ba3 Bf3 Qg1 Kc2 Bb2 Bd1 Rg8 h8R a3 Rh7 Ra7 Rb7 Rg6 h7 Nf3 h8N Nh4 Rb1 Ba1 Bf3 Bh3 Bh5 Bg4 Rb2 Kf3 Rb1 d1R Rb2 Re6 Bf7 Rg6 Be3 Qc8 Bc5 Qd4 Bf8 Ke3 Rb8 Rd7 Rb7 Rd5 Rb1 Rh1 Rb2 Nc1 Rb5 Nb3 Rc5 Qb8 Rcc7 Qa8 Rd7 Rh3 Nb4 Kf2 Nd3+ Kf1 Rbc7 Nc1 Bc5 Nf3 Nf6 Qg8 Ne8 Rh7 Bf8 Nh4 Ra7 Nce2 Kb3 Nc1+ Ka4 Nb3 Rab7 Ke2 Kb4 Kf3 Nb2 Kf2 Nd3+
1B2r2N/K2PP3/1nR2p2/N3R1p1/4pprB/b1rnPp1b/1k2BpP1/2N4q b - - 1 2 illegal: Other
1K2n3/np1B1P2/2pB1RN1/1P1p1Nbr/p2P2pb/1p5P/Bq2k1rR/n6R b - - 1 2 illegal: No proof kernel
KBkr1NB1/R1b1nn2/4rnb1/p4q2/PB1p4/RP3p1b/q2PNPr1/4n2R b - - 0 1 illegal: No proof kernel
r1R1N3/p1Rp1rbp/K3p1pk/P3P3/1q2BNP1/B1np4/P2bn1n1/2R2b1B b - - 0 1 illegal: Other
2bR2R1/2P1N1k1/2BrR2n/r1QnN1P1/2n5/1nRPb1K1/r1q1Pn2/7q b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 a4 b5 axb5 e5 Ra4 exf4 Ra3 Nf6 Ra1 Ng8 bxa5 d6 b6 Bf5 bxc7 Bc8 c4 Qg5 c5 Qe5 c6 Qe7 Ba3 Qd8 Bc5 dxc5 Kf2 h5 g4 f5 a6 Kf7 g5 h3 a7 h2 d3 c4 Nc3 h4 Kf3 h3 Kf2 f3 Qe1 f4 Bg2 Kg7 Na4 c3 Rc1 c2 Ra1 c1N Qf1 Nb3 Nb2 Rh6 Ra2 Na6 Qb1 Rd6 Qa1 Nb4 Ra6 Nd5 Qa5 Nh6 Kf1 f2 Na4 Qf6 Qc5 Qc3 Rb6 Qc2 Nf3 Be7 Rg1 h1Q Ne5 h2 Nc3 Bf6 Nc4 Bd4 Ne5 Be3 Be4 Rb8 a8R Rb7 Bg2 Ra7 Bf3 Ra2 Be4 Bd7 c8R Ra5 Rh8 Bc8 c7 Nf6 Rb4 Bb7 Ng6 Qb1+ Nd1 Qf3 Rg4 h1N Bd5 Qc2 Rad8 Bc8 Bc6 Nd5 Ne7 Ra6 Qb6 Ra5 Rhf8 Ra2 Rc4 Ra5 Rh4 Qh5 Kg2 f1N Qc5 Nfd2 Nb2 f3+ Kh2 f2 Rc3 f1R Nc4 Nf2 Kg3 Rfa1 Re4 Qh1 Re6 R1a2 Ne5 Nc4 Rg8+
1n2k1B1/P1qp2Q1/4bP2/3NP3/p1BPb3/Kn1r2Rn/1N1r1N2/N4r1r b - - 0 1 legal: proof: b4 g5 h4 gxh4 a4 c6 b5 a6 bxc6 b5 axb5 Bh6 Rh2 Bf4 Rh1 Be3 Ra3 Ba7 d4 e5 b6 e4 bxa7 Ke7 Nc3 Kf8 Nb1 Ke8 e3 f5 Rd3 exd3 e4 f4 Be3 fxe3 g4 h5 f4 e2 Kd2 e1R Kc1 h3 Kb2 h2 c4 h4 f5 a5 c7 a4 f6 h3 g5 d2 g6 Nh6 e5 Bb7 c8N Rh7 g7 Nf7 g8B Qc7 c5 Bd5 c6 Ng5 Ne7 Be6 Bc4 Ne4 Na3 Nc5 Qg4 d1R Nd5 Rf1 Qg7 Rd2+ Nc2 Nb3 Ka3 Rh4 Na1 Rhf4 Nc3 R4f3 Nd1 Rfd3 Nb2 Rdf3 Ne2 Rfd3 Rg1 h1N Nf4 h2 Nd5 Nf2 Rg4 h1B Rg3 Qb6 c7 Be4 c8N Qc7 Ne3 Nh3 Ng4 Na6 Nb6 Rb8 Bd5 Rb7 Bc4 Nb8 Nd5 Rb5 Nf2 Rc5 Ba6 Rcc1 Bc4 Rh1 Re3 Rcf1 Rg3
r7/4n3/b2p1p2/3R1Q1q/BPN1k2P/nPr5/1r1pPRRq/Kn3RN1 b - - 0 1 legal: proof: f4 a5 d4 c5 c4 cxd4 g4 e5 b3 h5 gxh5 a4 Bb2 b5 cxb5 exf4 a3 Bb4+ axb4 a3 Qd2 axb2 Qc2 Qe7 Qd1 Qd8 Kd2 Ke7 Kc2 Ke6 h4 Ke5 h6 g5 h7 f6 b6 g4 b7 g3 Na3 b1N Kb2 d6 Bh3 d3 Bd7 d2 Ba4 f3 Bb5 g2 Bd7 f2 Nc2 f1R Be8 Nc6 b8R Na7 Ba4 Qe8 Ne3 Ne7 Qc2 Qh5 Rh2 Ba6 Rg8 Nb5 Nc4+ Kd4 Qf5 N5a3 Rg6 Rhc8 h8R Rc1 Rg3 Rc3 Rf3 Rc6 Rf2 Rc7 Rb8 Rc8 Rb5 Rc7 Nh3 g1Q Rhg2 Qh2 Ng1 Rcc8 Ra2 Rc7 Ka1 Rc6 Rc2 Rc7 Rc1 Rc2 Qd7 Rb2 Rcf1 Ke4 Rd5 Rc5 Na5 Rc1 Nc4 Rc3 Qf5+
r1N1b3/2n3p1/q1r4P/pb1PPq1k/1q6/1B1BK3/2p1pN1P/RQN2N2 b - - 0 1 legal: proof: g4 h5 gxh5 b5 a4 bxa4 c3 Bb7 Bg2 Ba6 Bf1 Bc8 b4 d5 e4 e6 b5 Bb4 cxb4 d4 f4 e5 f5 Nd7 d3 Nf8 Ba3 Ne6 fxe6 Nh6 Bc1 Ng8 Be3 dxe3 d4 Ba6 d5 Nf6 Ra2 Bc8 Rd2 Ng8 Rd4 exd4 e5 Qe7 Bh3 Qd6 Bf1 Qd8 Ke2 c5 e7 f5 h6 Kf7 b6 Kg6 b5 f4 b7 f3+ Kd3 e2 b8N f2 b6 a3 b7 c4+ Ke4 c3 Nc6 d3 b8N d2 Na6 a2 Qb3 d1B Qb7 a1Q Nab4 Qb6 Nd2 Bd7 Nd3 Qb4+ Ke3 Ba4 Nh3 c2 Nc1 Be8 Bg2 f1Q Be4+ Kh5 Bd3 Qf5 Nf1 Bb5 Nf2 Nf6 Rg1 a6 Na7 Rc8 Rh1 Rc6 Nc8 Qa2 Qb6 a5 Qb8 Qac4 Rg1 Nh7 Qb7 Nf8 Rh1 Ne6 Qb8 Bf7 e8B Nc7 Bd7 Be8 Qb7 Ba4 Qb6 Qa6 Qb8 Qbg4 Qb1 Qb4 Rg1 Rc3 Bb5 Rc6 Bbc4 Bb5 Bb3 Bf7 Nb6 Ra8 Nc8 Be8 Rg4 Qe7 Ra4 Qb4 Ra1
qb2Nnk1/2q3Q1/2nB2rn/4NnR1/P2bbKNr/2r5/P1R1P1P1/1n3N2 b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 b3 Nh6 bxa4 Ng4 f6 Nh2 Nf3 Nxf1 Ng1 exf6 Bb2 f5 Bc1 f4 Kf2 h5 Kf3 c5 d4 b5 d6 f5 d7+ Kf7 d5 b4 d6 h3 Qd2 h4 Qb2 b3 Nd2 h2 Nh3 c4 Qc3 b2 Qd4 b1N Qc3 Kg8 Ne4 Nfd2+ Kf2 f3 Ke3 f4+ Kd4 f2 Ke5 f1Q Qb3 f3 Kf4 f2 Ba3 Bg7 Qe3 c3 Ng3 c2 Bb4 c1B Qd4 Rh6 Qc5 Rg6 Ke3 Bd4+ Kf4 Qc7 d8N Nd7 Qc3 Nf8 Qf3 Bf5 Bc5 Rc8 Qb3+ Nc4+ Qe3 Na5 Nh5 Be4 Nf7 Nc6 Ne5 Qe1 d7 f1N d8N Ng3 Bd6 Nf5 Rf1 h1N Ndf7 Nh6 Ng3 Qea5 Nf2 h3 Nfg4 h2 Rf3 Bcb2 Qc3 Qa8 Nf1 Ng3 Re3 Ngf5 Rg3 Ba3 Qb2 h1R Qc3 Nd2 Rc1 Rh4 Rc2 Bb2 Be7 Ba1 Nd6 Nb1 Ne8 Ba7 Ba3 Bb8 Bd6 Bb2 Qd4 Bc3 Qa7 Bd4 Bb4 Qh7 Bd6 Nb4 Qe7 Rc3 Qd7 Rh2 Nge3 Nc6 Rg5 Rh4+ N3g4 Qe7 Qa7 Qd8 Qd7 Qc7 Qg7+
4b3/3q2n1/3nk1Pr/K2bP3/1rRr1N1B/N1P1QnNq/2P2b1B/1nNb4 b - - 0 1 legal: proof: g4 g5 a4 h5 f4 gxf4 g5 b5 Ra3 e5 Bh3 e4 axb5 c5 b4 c4 Rf3 exf3 Bg4 c3 dxc3 hxg4 Kd2 Ke7 h4 f5 e4 d5 b6 a5 e5 f2 b7 f1Q h5 a4 h6 g3 h7 g2 b5 a3 g6 d4 b6 d3 Qg4 f3 Qa4 a2 Rh6 a1R Qe4 f4 Bb2 f2 Ne2 g1N Qa4 f3 Qg4 Nf6 Rh1 Bd7 Qf5 Na6 b8N Ne8 b7 Ng7 Qh3 Be8 Nd7 Nc7 b8N Nb5 Nf4 R8a4 Bc1 Rb4 Nf6 Nd6 Na6 Raa4 N6h5 Qd7 Ng3 Qg2 Na3 f1B+ Ke3 d2 Nc5 d1B Nb3 Bc4 Kd4 f2 Kc5 f1N Qh6 Be6 Rh4 Nf3 Bd2 Qh2 Nc1 Bd5 Be3 N1d2 Bg1 Qh1 Bh2 Nb1 Rg4 Rd4 Kb6 Rab4+ Ka5 Qg2 Nfe2 Ke6 Qe3 Qh3 Rh4 Rg8 h8B Be7 Rf4 Bh4 Re4 Rf8 Rg4 Rf5 Rf4 Rh5 Rg4 Ngf5 Bf6 Ng7 Bg5 Rh6 Bf6 Rd2 Rc4 Rd4 Be7 Bg5 Bd8 Bf4 Bh4 Bg5 Qd3 Be3 Qd2 Bg1 Qe3 Bf2 Nf4+
1qn2bKb/qqRPRNb1/4B3/qb3k2/1N2b1Nn/Pr1Q2P1/5P2/2N2b2 b - - 0 1 legal: proof: h4 f5 b4 d5 c4 g5 cxd5 a5 e4 axb4 h5 fxe4 Bb2 b5 Be5 Ra7 Bg3 Ra6 Bh4 Rg6 hxg6 gxh4 Ke2 Kd7 Ke3 c5 Kf4 e5+ Kf5 h5 d4 e3 g3 c4 a3 c3 d6 h3 g7 b3 Kg6 Ke6 d7 b4 Ba6 h2 Be2 b2 Qc1 b3 Qf1 c2 Nd2 b1Q Nc4 c1B+ Bd3 h4 Ra2 b2 Bc2 e2 Nf3 e1B Rg1 h1Q Qd3 e4 Qd1 h3 Rg2 e3 Nce5 e2 Nd2 h2 Nf7 Qe7 Bd3 Nc6 Nb3 Bc3 Na1 e1Q Ne5 Bh6 Rg1 Ba6 Nc2 Na7 Nb4 Qb7 Qe2 Qd2 Rc1 h1B Ra1 Nc8 d8N+ Kd6 d5 Bb5 Qf3 Bg2 Bf5 Bgf1 Qd3 Qed7 Be6 Nge7+ Kf6 Ng6 g8N Nh4 Ra2 Bd4 Rc7 Qh7 Re7 Bhg7+ Kf7 Qa7 Nf6 Qb8 Nc2 Qa5 Nfg4 Bc3 Nb4 Bd4 Qb3 Qbe4 Qe3 b1B Ned3 Qh1 Nc1 Be4 Qd3 Ba1 Nf6 Ke5 d6 Bc3 Rc2 Ba1 Ba2+ Kf5 Rcc7 Qf3 Bc4 Qe3 Ba2 Qea7 Be6+ Ke5 Rc3 Ba4 Nbd5 Qbb4 Rec7 Be7 Rc2 Nb6 Nh5 Bgf6+ Ng7 Qbb5 Rd7 Qb3 Nb7 Rb8 Nd8 Bf8 Rb7 Nc8 Rc5 Beg2 Rc3 Qe4 Nh5 Bh8 Kg8 Qeb4 Re7 Be4 d7 Qbb6 Bf7+ Kf5 Rc7 Bag7 Nhf6 Rb7 Ng4 Qd6 Rc5 Qdb8 Rc7 Qbb5 Nc3 Qba6 Nd5 Rb3 Nb4 Q6b7 Bc4 Bc6 Nf7 Bb5 Be6+
3nb2r/R1q1Q1kN/n5Pn/1B2p3/3R1P2/3KR1bP/2nn1rP1/4bnBR b - - 0 1 illegal: No proof kernel
1B1Bb2Q/n3P2R/1P5b/1b3B2/Pbn4b/1q1r1p1N/r1nN1B1P/1bk4K b - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 b3 a4 Qc2 a3 Qc3 Na6 Qb2 Nb8 Nf3 b5 Ng1 axb2 a4 b4 Ra3 bxa3 b4 Bb7 Kf2 Ba6 Ke1 Bc8 Kf2 Kd7 Kg2 Kd6 d4 f5 e4 c5 h6 g5 b5 f3+ Kg3 g4 b6 c4 h7 f2 Kg2 g3 Bh6 a2 Bd2 a1N Be3 f4 Bc1 c3 Ne2 c2 Ng1 Nf6 Nd2 b1B Bb5 f1B+ Kf3 g2 Kf2 f3 Bc4 Ng4+ Kg3 Bd7 Be2 Ne5 Bd1 Be8 Kf2 Bfb5 Nh3 Nbc6 Kg1 Rg8 h8Q Nc4 Bb2 c1B Bc2 Na7 e5+ Kd7 d6 Kc6 d5+ Kc5 e6 Kb4 Bd4 Ka3 d7 Bb4 Bd3 Nc2 d6 Rg7 Bc5 Kb2 e7 Qc8 d8B Qe6 Bc7 Rd8 d7 Qf7 Ne4 Bh6 Bb8 Kc1 Nd2 Rg4 Bf2 Re4 Nf1 Re2 Bf5 Rd2 Be1 Rd3 Nd2 Rc8 d8B Qd5 Kf2 g1B+ Kf1 Bf2 Rg1 Bg3 Bf2 Bh4 Rg7 Rc6 Kg1 Rg6+ Kh1 Rg2 Bdc7 N4a3 Nc4 Nd4 Be1 Ra2 Nd2 Qb3 Rh7 Ndc2 Bf2 Nc4 Bd8
2q4n/2P2pbP/PRr1N1R1/4b3/1b2r1RP/1rB2K1n/3QBb1k/n3r1R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 d5 Bb2 dxe4 Bc1 c5 Na3 h5 gxh5 c4 f3 e5 Kf2 e3+ Kg3 e2 Kg2 e4 Nb5 e3 Nd4 Bf5 Nb3 Be4 fxe4 cxb3 a4 Ke7 h4 Kf6 d4 e1B c4 g5 c5 b5 a5 e2 e5+ Kf5 c6 Kg4 h6 b2 h7 b1N d5 b3 a6 b4 e6 b2 e7 b3 e8R Bc3 d6 Nh6 d7 Na3 Qe1 b1R Rh2 b2 Qd2 e1B Ne2 Be5 Ng1 Bfg7 Qe3 Nc2 Rg8 Qc8 d8R Bb4 Qf2 Nd7 Bd2 Nf8 Ra4 Re1 Qe3 b1R Ra1 Rb3 Bc1 Ng6 Ra3 Na1 Rd1 Ra7 Bb2 Re7 Qe2+ Kf4 Rh1 g4 Ra4 g3 Rb1 Ng4 Bc3 Nf2 Nf3 Nh3 Ng5 Re6 c7 Rc6 Qd2+ Kg4 Rd8 Re8 Rg1 Nh8 Rd6 Re4 Rg6 Ree6 Qb2 Re7 Be2+ Kf4 Kf1 g2+ Ke1 Kg3 Qd2 Kh2 Ne6 Ng5 Kf2 Nh3+ Kf3 Re8 Rgc1 g1B Rd1 Bf2 Rdg1 Ba3 Rb4 Re7 Rb6 Bb4 R1g4 Rd7 Qe3 Rd1 Qd2 Re1 Bc4 R1e2 Rbg1 Re1 Be2
2BNN1R1/6qP/2N1qq1q/nrpr2qN/n1P2b2/R5nk/1P3K1P/4r2Q b - - 0 1 legal: proof: e4 b5 g4 d5 a4 dxe4 axb5 h6 f3 exf3 d3 Be6 Bg5 hxg5 Qc1 Bf5 Qd2 Bg6 Qd1 Bh5 gxh5 Qd6 Qc1 Qd4 Qd1 Qd8 c4 Kd7 h6 Ke6 d4 Kf5 d5 Kg4 d6 e5 d7 f5 h7 c5 b6 a5 b7 a4 Qc2 a3 Qe4+ f4 Qe2 a2 Qe3 f2+ Ke2 f3+ Kd2 e4 Bd3 f1N+ Ke1 f2+ Ke2 Qe7 d8N Ra5 Qc1 e3 Bg6 Rb5 Bd3 Nf6 Nf7 Qe6 Qd2 Ng3+ Kd1 f1Q+ Qe1 e2+ Kd2 Bd6 Na3 Rd8 Nf3 Kh3 Bf5+ g4 Rc1 a1Q Rg1 g5 Be4 Bf4+ Kc2 Nd5 Kd3 Nc6 b8N Nc3+ Nd7 Na4 Rc3 Qc1 Nd4 Na5 Nf6 Rd5 Nh5 Qf2 Qd1 e1R Bf5 Qf1+ Qe2 Qf2 Nd8 Qce3+ Kc2 Qh6 Bc8 Qee6 N4c6 Qd4 Qd2 Qdf6 Qg2+ Kh4 Nb1 Nh1 Nb8 g3 Ra3 g4 Qe4 g2 Nbc6 g3 Nc3 Kg4 Qf3+ Kh3 Ne4 Rb1 Nd6 Re1 Rf1 g1Q Ne8 Nf2 Qh1 Ne4 Ra1 g2 Ra3+ Bg3 Rf4 Qe3 Rf5 g1Q Rg5 Be5 Rg8 Qgg7 Ra1 Qeg5 Ra3+ Re3 Kc1 Bf4 Kc2 Ng3 Kc1 Ree5+ Kc2 Bd2 Kd1 Be3+ Ke1 Bf4+ Kf2 Re2+ Kg1 Re1+ Kf2
4N1r1/kn2KP1n/q2p2q1/NQRRn1B1/P3P2n/1nPq3R/2Rb4/n3r3 b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 Na3 h5 Nh3 f5 Bg2 f4 Ng1 b6 Nb1 Ba6 Be4 Bd3 Bf3 Bf5 gxf5 Nh6 Bg4 hxg4 Kf2 Ng8 Kf1 Ra3 Ke1 Ra8 Kf2 g5 a4 d3 h4 b3 h5 b5 c3 b2 f6 b4 e3 g3+ Kf3 b3 Ke4 d2 Kf5 g4 h6 g2 h7 g3 e6 f3 e7 f2 Qe2 d1N Qc4 f1Q+ Qf4 Na6 Ra3 Nc5 Rh2 Nb7 Ra2 Bh6 Na3 b1Q+ Rc2 b2 Rh4 Qa6 Ne2 g1N Bd2 g2 Qg3 Nf3 Qf2 g1N Rf4 Ne5 Nc4 Ngf3 Nd4 Nh4+ Ke4 d6 Kd5 Kd7 e8R Kc8 Ke6 Kb8 f7 Nf6 e4 Ka7 Rf5 Ne3 Re7 Qg8 Qf1 Qg6 Na5 Rag8 Rc7 Qd1 Rc8 b1N Qb5 Qf1 Rc5 Qd3 Bc1 Nd2 Ke7 Nb3 Ne6 Bf4 Ng7 Bg5 Rd2 Nc2 Ne8 Nca1 Rc2 Bd2 Rd5 Rg7 Rg5 Rhg8 h8R Nh7 Rf5 Qh5 Rc5 Rg1 Rd5 Qg6 Rc5 Be1 Bg5 Bd2 Rd5 Re1 Rc5 Nf8 Rh6 Nh7 Rh5 Ng4 Rfd5 Ne5 Rh6 Nhf3 Rh2 Nh4 Rh3
Q2rb2R/5P1R/r3PPnR/rq1Rr3/r1k4p/1b4b1/3BN1rP/Bb5K b - - 0 1 legal: proof: d4 c5 a4 cxd4 e3 b5 axb5 e5 Ke2 f5 Ke1 e4 Bd3 exd3 g4 Nf6 f4 Ng8 e4 Ba6 g5 Bc8 e5 Na6 Nd2 Nb4 Ne4 fxe4 f5 Nd5 Ne2 Nge7 Ng1 Nf6 gxf6 Ng8 Kf1 Kf7 Kg2 h5 b4 d5 c4 a5 c5 g5 c6 d2 b6 a4 b5 g4 c7 h4 b7 g3 b8B a3 b6 e3 b7 d3 Ba7 e2 b8R e1R Rb5 a2 Bb8 d4 Nf3 Qd5 Qc2 d1B Qc6 d2 Rb6 d3 Rf1 Rh6 Kg1 g2 Ba3 Ra4 Rab1 a1R R6b4 Bd7 c8R Qb5 Qc1 Bd6 Re4 Bc2 Rd4 d1B Rd5 d2 Nd4 Ne7 Rh8 Be8 Bb2 Ng6 Ne2 R1a2 Ra1 Bb1 Qc6 Bb3 Qa8 d1R Bc7 Rd3 Ba5 Rh5 Bd2 R2a3 Kf2 g1R Ra2 Ra6 Ba1 R3a4 Rc2 Rgg4 Rc6 Rhg5 Rg1 R4a5 Rg3 Rga4 Kg2 Rdd4 Nc1 Re2+ Kh1 Rg2 Ne2 Bc7 Rdc5 Rd8 Rd5 Bb6 Rgc3 Bf2 Re6 Bg3 Rc8 Rh5 Rh7+ Kf8 f7 Rg5 Rf6 Ke7 e6 Rh5 Re5 Kd6 Rb8 Nh8 Rfh6 Ng6 f6 Rf5 Re3 Kc5 Re5+ Kc4 Rd5 Re5 Rb7 Bc6 Re7 Bd7 Re8 Bc6 Rg8 Be8 Rgh8
3R1Brr/1RQr2kP/3P4/N2PrnP1/B3p1K1/6bp/B1b5/Bn2bqr1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Bb2 g4 Ba3 Bg7 Bc1 Bf8 Qb3 h5 h4 Nf6 Qh3 Ng8 Nc3 gxh3 g4 Ra7 g5 Rh7 Nd1 Rh8 Ne3 Ra8 Ng4 hxg4 Ke2 Kf7 f4 Qe8 d4 e5 a4 c5 a5 b5 h5 g3 Kf3 g2 h6 b3 a6 b2 h7 b1R f6 c4 a7 c3 f5 c2 Kg4 Ne7 Bc4 Nd7 Ba2 Nb6 Bb2 c1B Nf3 Bf4 Nd2 Re1 Nb3 Nc4 Rb1 Bg3 Na5 Na3 Ba1 Ba6 Rh2 g1R Rd2 Qc6 Rb3 Qc4 d6 b4 Re3 b3 Nb7 b2 Na5 b1R Rb2 Bg7 Rf3 Rae8 a8B Reg8 Bc6 Rbc1 Bd7 Nb1 Ba4 Re3 Rb3 Qf1 d5 Bd3 Rb7 Rc7 Rf4 Kf8 f7 Bc2 Rc4 Re1 Rc6 Bf6 Ra6 Re2 Ra8+ Kg7 Rf8 e4 Rfb8 Rf2 Rd8 Bc3 f6+ Kg6 f8Q Rf5 f7 Bce1 Bc6 Re5 Ba4 Nf5 Qe7 Kg7 Qd7 Nh4 Qc6 Rd7 Qc7 Nf5 f8B+
2b2rQ1/bB1p1BBN/R2P1b2/b2K1P2/P3p3/2B5/r1kRq2P/b3q1nn b - - 0 1 legal: proof: c4 h5 b4 f5 e4 a6 b5 axb5 exf5 bxc4 Qa4 c3 Qg4 Rh6 Qd1 Rh8 g4 Nh6 g5 Rh7 Na3 Rh8 Nc2 Ng8 Ne3 Rh6 Bc4 Rh7 Bf1 Rh8 Qb3 g6 Ng4 Nh6 Qg8 hxg4 Qxg6+ Nf7 Qh7 Nh6 Qg7 Ng8 Ke2 b5 Kd3 c5 Ke4 e5 d4 c4 f4 g3 a3 g2 g6 c2 d5 c3 f6 b4 f7+ Ke7 f5 Kd6 Be3 c1B Qh7 c2 g7 b3 Ne2 g1B Bh6 Kc5 d6 Kc4 Qg6 b2 Nd4+ Kc3 Bg5 b1Q Bd3 Qe8 Nf3 Bb2 Bf6 c1B Bd8 Ba7 Bh4 Be7 f8B Bf6 Re1 Nc6 Nd2 Nh6 g8B Nd4 Re2 Nf3 Kd5 Ng4 Be1 Nf2 Bg7 Ng1 Nf3+ Bd2 Ng5 Nh1 Ba6 Kc2 Bf7 Rf8 Nh7 Qd1 Rf2 Qe2 Bb7 Ba5 Bc3 Qe7 Bh6 e4 Qg8 Qd8 Bg7 Qc7 Rb1 Ba1 Rb6 Qd8 Ra6 Qb6 Be8 Qb1 Bf7 Qe1 a4 Rb8 Bc6 Rb2 Bb7 Ra2 Rf1 Qg3 Rd1 Qge1 Rd2+
1k2N3/3qB1PB/1pqr3q/nb1n2r1/PpQ2n2/5N2/RPPq2q1/K3N2N b - - 0 1 legal: proof: e4 a5 h4 g5 d4 gxh4 d5 f5 exf5 c6 Be2 cxd5 Bf1 d4 f4 e5 a4 e4 Ra3 Bd6 Rb3 Bc7 Rb4 Be5 fxe5 axb4 Kd2 h5 g4 d5 f6 Kd7 f7 Kc7 f8N d3 e6 e3+ Ke1 e2 Kd2 e1N e7 h3 g5 d4 g6 h2 g7 h4 Bg2 h3 Qe2 b6 Bd5 Ng2 Bc4 Qe8 Be6 Nc6 Qd1 Ra5 Ng6 Nf6 Nf8 Ba6 Qh5 Rh6 Nh7 Kb8 Bf5 Rg6 Kd1 d2 Qh4 Rc5 Qg4 Na5 Ng5 Qc6 e8N Bb5 Ne2 Re5 Re1 h1Q Ng3 h2 Rg1 Rh6 Bh7 Rf5 Re1 Qg1 Qe2 h1Q Qc4 Rg6 Rf1 Qh6 Nh1 Qgh2 Rf3 Q2h3 Ra3 Rd5 Ne4 Qhd7 Nef2 Rd6 Ra2 Nd5 Nd3 Rg3 Ne1 Rg4 Ke2 d1Q+ Kf2 d3 Bg5 d2 Be7 Qc1 Ke2 Qh2 Kd3 d1Q+ Nd2 Qg1 Bf6 Rg6 Be7 Qh5 Ndf3 Qhh6 Ke2 Rg5 Kd3 Qf4 Ke2 Qfh2 Kd2 Ngf4+ Kc1 Qd2+ Kb1 Qgg2 Ka1
2rB1Nrk/N1b3q1/NN2p3/1RP2P2/1p2Pr2/1Rqr1b2/5qPK/r3Qr2 b - - 0 1 legal: proof: h4 a5 b4 axb4 c4 f5 e3 g5 Ke2 gxh4 Kd3 f4 Be2 f3 Kc2 fxe2 Nc3 c5 Kd3 b5 Nb1 Na6 Kc2 b3+ Kc3 Nh6 d3 b4+ Kd2 Nf5 d4 Nd6 Bb2 Nb5 cxb5 c4 Bc1 Nc5 dxc5 Qa5 Ke1 Qb6 Kd2 Qd8 Ke1 Kf7 f4 Kg8 Kf2 e1Q+ Kf3 h5 a4 d5 f5 d4 a5 d3 a6 e6 a7 c3 b6 d2 b7 b2 b8N c2 Ra6 h3 Qe2 d1R Na3 b1R Nc4 h4 Nb2 h2 Rd6 h3 Nd7 Qc7 Rb6 Bd6 Na4 Ra1 Nf8 Rd3 Rb5 Qg7 Nb6 Bc7 Bd2 Qh4 Qe1 c1Q Ne2 Qcc3 Nd4 Bb7+ Nc6 Rc8 a8N Qhd4 Rg1 h1R Kf2 h2 Na7 Bf3 Rf1 Qdc4 e4 Qa2 Rg1 Qab2 Kf1 Rh4 Bg5 Kh8 Be7 Rf4 Bd8 Be5 Nc7 Bd6 Nc6 Raa8 Na6 Bc7 Na7 Qbd2 Qe2 Qdc2 Kf2 Rab8 Ra1 Rb1 Qd2 h1R Ra3 Ra1 Rb3 Rhe1 Bg5 Rg1 Kg3 Rgf1 Qe1 Qf2+ Kh2 Ra8 Nh7 Rg8 Bd8 Rc8 Nf8
n5Nb/8/1pbPk3/1Rn1nbP1/P1q3qN/3R1p2/bP1Bp1r1/Q1R1K2R b - - 0 1 legal: proof: h4 d5 d4 a5 e4 dxe4 d5 g5 d6 gxh4 Bc4 a4 Bd5 a3 Nxa3 c6 Nb5 Bf5 Na7 Bc8 f4 cxd5 Bd2 e5 Bc1 e3 Nc6 e4 Rh2 Ra4 Rh1 Rc4 Ne7 Rc7 Nc6 Rd7 Qd2 Re7 Qd1 Re5 fxe5 Be6 Qf3 Bh3 Qd1 Bc8 a4 Kd7 c4 h5 g4 f5 g5 e2 c5 d4 Bf4 b6 Bc1 f4 Ne7 d3 c6+ Ke6 c7 d2+ Kf2 e1N Ke2 h3 Kf2 e3+ Ke2 h4 Nf5 h2 Rb1 h3 Kf1 Nf3 Nh6 Nf6 Ng4 Nfd7 Nh6 Nc5 Qe1 d1Q Ne2 Nba6 Bd2 Bg7 Nf5 Qg8 Rg1 h1B Neg3 h2 Nh4 Rh7 Ra1 Bh8 Ngf5 Bd7 c8R Nc7 Rg4 Na8 Ne7 e2+ Kf2 Bg2 Rc6 h1B Rg3 Qc8 Rb1 Qc1 Ng8 Qc4 Rc1 Rh6 Rc7 Bc6 Rh7 Bh3 Qf1 Bf5 Qg1 Nh2 Ke1 Bhd5 Rd3 f3 Qf1 Ng4 Qh1 Qd4 Qf1 Ba2 Qg1 Kd5 e6 Ne5 e7 Ke6 Qf1 Qc4 Qg1 Qb7 e8R+ Qe7 Rc8 Qd7 Rc7 Rh5 Ra7 Qc8 Ra5 Qg4 Rb5 Qc7 Ng6 Rh2 Rh3 Rf2 Nh4 Rg2 Rh1 Qf7 Qd4 Qc7 Qc3 Qf7 Qc2 Qc7 Qb1 Qc8 Qa1 Qa6 Rbb3 Qac4 Rb5
2bR3N/3b1P2/1bp1N1q1/RkbpNqB1/4N3/b2P3n/Qp1P1PK1/n2b4 b - - 0 1 illegal: No proof kernel
rR2brnQ/5n1P/1bpPkp2/nP3B2/2RR1r2/p4P2/B4nKp/4N2R b - - 0 1 legal: proof: g4 d5 d4 b5 c4 dxc4 a4 g5 axb5 h6 e4 Kd7 h4 Nf6 e5 Ng8 h5 Ke8 d5 Qd6 Nd2 Bf5 Ndf3 Bd7 exd6 Bf5 Nh4 gxh4 g5 Bd7 g6 Bc8 Bg5 hxg5 b4 Kd7 f3 e5 Kf2 a5 g7 g4 b6 h3 h6 c6 b5 g3+ Ke3 h2 h7 g2 Kf2 a4 b7 e4 Qb3 c3 Rb1 c2 Rd1 c1N Qc2 a3 Rd3 f6 Qb2 Nb3 Qe5 Na5 Ne2 g1R Nc1 Rg4 Rc3 Rf4 Bd3 e3+ Kg2 e2 Rc4 Be7 Bb1 Bd8 Nd3 Bb6 Qd4 Na6 b8R Nb4 Ne1 Nd3 Bc2 Ne5 Qd2 Nf7 Bf5+ Kd8 d7 Ke7 d8R Bd7 Re8+ Kd6 Ree4 Be8 Red4 Ke7 Bb1 Kd7 d6 Ke6 Qc2 Ne7 Qg6 Rf8 g8B Rf5 Qg7 Rf4 Nc2 e1N+ Kg3 Ra6 Qh8 Nd3 Ne1 Nf2 Kg2 Ra8 Bf5+ Ke5 Ra4 Nh6 Ba2 Neg8 Bc2 Nf7 Rac4 Ke6 Bf5+
b5r1/3RP1Q1/3q3N/kPq1rR1p/rb4NK/2rPn3/1N2nrNP/2q3bB b - - 0 1 legal: proof: c4 e5 a4 d5 b3 dxc4 Qc2 b5 axb5 e4 Kd1 e3 Bb2 exf2 Bf6 gxf6 Kc1 f5 Qd1 f4 g4 Kd7 e4 a5 g5 f5 b6 Kc6 g6 Kb5 e5 h5 d3 c5 Kd2 c3+ Ke2 a4 Kf3 c2 b7 c1Q e6 c4 g7 a3 b4 c3 Qc2 a2 Qd1 c2 Kg2 f3+ Kg3 f4+ Kh3 Nf6 g8N Ng4 Nh6 Qd6 Be2 f1R Qe1 f2 Nd2 f3 Nf7 Ne3 Nd8 Nc6 b8N Nd4 Nc4 Rg8 Nd7 Ra4 Kh4 Bb7 Nde5 Ba8 Qc3 Re1 Ndf7 f1R Nh3 f2 Bf3 Ne2 Ng4 Qc5 Rb1 a1B Qg7 Bd4 Nb2 Ka6 b5+ Ka5 Ra1 Qd6 Ra3 Rg1 Ra1 f1R Nf4 Rf2 Ng2 Bc5 Nh6 Bb4 Qb7 Bg7 Bd5 Bd4 Qg7 Rc8 e7 Rc3 Nd1 Qa3 Nb2 c1Q Bc6 Rf8 Bf3 Rg8 Bb7 Rgf1 Bd5 Rf5 Rf1 Re5 Rf5 Rf1 Ne1 Rf2 Bh1 Qa2 Ng2 Qad5 Ra2 Bb6 Ra1 Q5c5 Ra3 Rc2 Rc3 Ba7 Rc4 Rc3 Rd4 Qdd5 Nd1 Qb6 Rff4 Nc4 Nf7 Rf3 Nfh6 Qc7 Rde4 Bg1 Rd4 Rf2 Rf6 Qcc5 Nb2 Ne3 Rf5 Qdc6 Rd8 Q6d6 Rd7
3bk2R/4r3/bnr1R2n/1P1nQ2p/N2b1qPP/K1R1P2b/B1q5/nrN3R1 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 gxf4 axb5 c5 Ra2 cxd4 Ra6 e5 Ra1 f3 Bf4 exf4 Kd2 f2 Kc1 d5 h4 f5 c4 h5 g4 a5 b4 f3 Kb2 d3 b6 d4 e3 f4 c5 a4 b5 d2 b7 a3+ Kb3 a2 c6 d3 c7 Nd7 b8R Qf6 Rh3 Rh7 Rh1 Nh6 Qc1 d1N Qc2 d2 Qc6 Be7 Qb6 Bd8 Be2 f1B Qd4 f2 Nc3 f3 Rh3 Qf4 Rh2 Ra6 Qa7 Bh3 Bd3 f1R Bc4 f2 Rh1 Rc6 Qc5 Nb6 Nge2 Ba6 c8R Re7 Na4 Nc3 Rb7 d1Q+ Ka3 Ncd5 Rg1 Qc2 Nc1 Rd1 Qd4 f1N Qe5 Nd2 Rd7 Rf1 Rd6 Re1 Re6 Nb3 Rc7 Rf1 Rb1 Na1 Rb3 Re1 Rc3 Rd1 Ne2 Rb1 Nc1 Nb3 Rd7 a1B Ra7 Nc5 Ba2 Nb3 Rc4 Bd4 Rc3 Na1 Rc7 Kf8 Ra7 Re8 Rg7 Re7 Rh7 Ke8 Rh8+
1n5B/1B2qk1K/bQqN4/3bpP1P/1q2rB2/q3PPb1/3n2R1/r2nB1bN b - - 0 1 illegal: No proof kernel
2R5/5n1N/1qBnQPp1/q2r2Pp/5BP1/1RPnBB1n/1nK1b3/q1b2kr1 b - - 0 1 illegal: No proof kernel
n1nB1qk1/Q3P2q/Pbb1pnPN/B3p3/1r2Pn2/3R4/6Bb/1BKRr1n1 b - - 0 1 illegal: No proof kernel
KR2q3/1Rq1pP2/1p4BB/1P1QP2P/1n2R1br/2nb1bbr/2q3Rb/6Nk b - - 0 2 legal: proof: d4 c5 a4 cxd4 g4 f5 a5 fxg4 Qd2 h5 Nc3 b6 a6 Qc7 Qd1 Qb7 Ne4 h4 Ng3 hxg3 axb7 Rh3 Bg2 Rh4 Bf1 Rh8 Kd2 Kf7 Kd3 Kg6 Ke4 Kh5 Kd5 Kh4 c4 a5 e4 g5 b4 d3 f4 d2 c5 g2 e5 a4 f5 g3 c6 a3 c7 a2 b5 g4 f6 Na6 b8R Nb4+ Ke4 d5+ Kd4 Ra4 f7 Nf6 h3 Bh6 Ne2 g1B+ Kc3 g2 Qe1+ g3 Ba3 d1B Qd2 d4+ Kc4 d3 Nf4 Bh2 Ne6 g1Q Nf8 g2 Nh7 Kg3 h4 Bdg4 Qe2 d2 Ng5 d1B Bc1 Qf2 Nh3 g1Q Qe4 Nfd5 Rb7 Nc3 Bd3 Bf4 Qd5 Qc2 Bg6 Bcf5 c8R Bdf3 Rcb8 Kg2 Rb1 a1Q Rb2 Qe1 Ng1 Bfg3 Bh6 Bd3+ Kd4 Qec1 h5 Rg8 Nh3 Rd8 Re1 Ra3 Re4 Kh1 Ng1 Rb3 Rc7 Qa8 Rd7 Qc6 Rdb7 Qe8 Ra2 Rd6 Rb2 Rf6 Ra2 Rf4 Rb2 Q2d1 Rg2 Qdc2 Ne2 Nd1 Bf8 Qc7 Qc6 Bc8 Ng1 Bde2 Bh7 Rh4 Qc4 Qc2 Ra7 Be1 Bg6 Bcg4 Bh6 Re3 Qe6 Bd3 Qc6 Bfe2 Qa8 Na6 Kd5 Reh3 Qc6 Beg3 Qc5 Qcc8 Rd7 Qcd8 Kc6 Bef3 Kb7 Nc3 Ka8 Nb4 Rb7 Qc7 Qd5
R3Qn2/3PK3/1q6/P3P1RB/q1n1R1Rb/k3bpB1/Nb3Prp/r1n2r1b b - - 0 1 legal: proof: d4 a5 c4 g5 b4 axb4 h4 d5 hxg5 dxc4 Nc3 e6 d5 e5 Nb5 Nh6 Nd4 exd4 Rh3 Ng8 Rh5 Nc6 Rh1 Nb8 Kd2 Ke7 a4 Kd6 e4 Kc5 g4 h5 d6 f5 d7 b5 g6 h4 e5 d3 Ke3 b3 Kf4 Kb4 g7 c5 g5 b2 g6 b1N Nf3 c3 Nh2 c4 Qe1 d2 Bd3 d1Q Bc2 h3 Qd2 Bb7 Ra2 Be7 Nf3 h2 Qe1 Na6 Ra1 Nd2 Rg1 Qb6 Rg2 Nc5 Be4 c2 Ra3 c3 Qe3 Nc4 Qd4 Nb3 Bc6 Bh4 Nd2 Nf6 g8R Nh7 g7 Nf8 Rg5 Rh5 Rg4 Rg5 Bf3 Rg6 Be2 Bh1 Nb1 Ra5 Be3 c1B Qd3 c2 Nc3 Bb2 Qd5 c1B Qe6 Bd2 Qe8 Nc1 Ra1 Ra7 Na2+ Ka3 Rg5 b4 Bh5 b3 a5 Rc7 Rh8 Rc5 g8R Rc8 Rg1 Rg2 Rg4 Rc5 Rb1 Rb5 Re1 Rb4 Rhg8 Ra4 R8g5 Qc2 Kf3 f4 Re2 Qd1 Ke4 f3 Kd5 Qc2 Bf4 Be3 Bg3 Bc3 Rd2 b2 Rdd4 Qcb3 Rde4 Qc2 Ra1 b1R Rg8 Bb2 R4g5 Ne2 Reg4 Rf1 Re1 Nc1 Re2 Qbb3 Kc6 Qg6+ Kc7 Qh6 Kd8 Qhb6+ Ke7 Rb4 Rd2 Qa4 Rdd4 Rb5 Rde4 Rd5 Rh8 Rdd1 Rd4 Ne2 Rde4 Ra1 Qg6 Nc1 Qe6 Nh7 Ra8 Nf8 Qg8 Qab3 Qf7 Qa4 Qe8
B5Br/2k1P2b/qqN4p/1r3p1P/RBBPn3/2b2P2/2n1b2r/NK1n1b1Q b - - 1 2 legal: proof: b4 a5 c3 axb4 Nf3 d5 Ng1 d4 cxd4 e5 a4 g5 d3 g4 Bb2 e4 Nd2 exd3 Qb1 Ke7 Qc2 Ke8 h4 Bc5 e4 Qd5 f3 Bf8 e5 Qa5 Ra3 Qd5 a5 Qd8 Rc3 Be7 Rc6 Nd7 Rf6 Bf8 Rf4 Nb8 Kd1 g3 Re4 Qd7 Re2 Qd8 Rf2 gxf2 Kc1 Kd7 g4 b5 a6 c5 a7 h6 h5 b3 g5 c4 e6+ Kc7 g6 b4 g7 c3 Qd1 c2 Qe1 Nc6 Qe4 Nf6 g8B Ba6 Qg6 Ne4 Be2 f1B Nc4 f6 Ba3 d2+ Kb2 d1N+ Ka1 b2+ Ka2 b1R Bh7 c1Q Na5 Qc4+ Nb3 Rb8 a8B Rb5 Bg8 Rb2+ Ka1 Qd6 Na5 b3 Qg2 Nb4 Nc6 Qdc5 Rh2 Qb6 Qh1 Rd2 Kb1 b2 Rg2 Nc2 Bb4 Bd6 e7 Bc5 Bc3 Bb4 Rg6 Qe6 Bc4 Rh2 Ne2 Qc8 Be1 Bc3 Nc1 Be2 Nb3 Bf1 Nb4 Be2 Na1 Qcb7 Ka2 b1B+ Kb3 f5 Bcd5 Bf1 Rc6+ Kb8 Bd2 Ra5 Be1 Bae2 Rc4 Rb5 Bgf7 Bd2 Bde6 Q7a6 Bed5 Ndf2 Kb2 Ba2 Bfe6 Bb3 Kb1 Nd1 Nc6+ Kc7 Ra4 Ba5 Bc4 Bb4 Bd3 Bc4 Bf7 Be6 Bc4 Bd5 Be8 Bg8 Bef7 Bh7 Bg8 Nc5 Bd2 Ne4 Bc1 Bd2+ Bb2 Bb4 Ba3 Bc3+ Bb4
1K5b/nP2Pqp1/r3B2k/2r2RBq/1Q2Rp1q/Pr3b1N/Rb3P2/3bRn2 b - - 0 1 illegal: Other
1NN1nNb1/5r1P/q1qqb1kp/B1P1p1r1/Nn1b2r1/P1Q1P2b/B7/1RK5 b - - 0 1 illegal: No proof kernel
4b1q1/2K4P/bB1Q4/1Pp1pbn1/Bk4rB/b2Nr1qn/2P1P2N/1B1R2nr b - - 0 2 legal: proof: b4 g5 f4 Bg7 g4 Bc3 Kf2 Bxd2 a4 b5 axb5 gxf4 g5 h5 Ra3 Nh6 Rg3 Ng8 Rg4 hxg4 h4 f5 h5 e5 h6 Ke7 h7 Kd6 g6 a5 g7 f3 Kg3 a4 b6 f4+ Kh2 f2 b5 Kc5 b7 d5 Bb2 a3 Bh3 f1B Ba1 f3 Kg3 f2 Bg2 d4 Nh3 d3 Nf4 a2 Qc1 Nc6 b8B Nce7 Bb2 a1R Rg1 R8a3 Bf3 Ba6 Bd5 Kb4 Bf3 c5 Bh1 Bh3 Re1 f1B Ne6 Nh6 g8B Ng6 Bc7 Bfg2 Rd1 Nf4 Bb6 Nf7 Bd4 Bc6 Bf2 Ng5 Bd5 Be8 Ba2 Qc8 Bf7 Rg8 Be1 Bc3 Nd2 Bb2 Nf3+ d2 Bb1 Re3 Kf2 Ba3 Nh2 Rg7 Bg8 Qd8 Bf7 Qd3 Qb2+ Qb3 Qd4+ Qc4 Qd6 g3+ Kg1 g2 Bh4 Qb3 Kf2 g1N Bg8 Bf5 Bf7 Ng6 Nf4 Qc3 Bfa2 Qc4 Bb3 Qg8 Nh5 Nf4 Ba4 Nfh3+ Kg2 Rd3 Nf4 Rc3 Re1 d1Q Nd3+ Kc4 Rf1 Qd2 Rd1 Qe3 Kf1 Rg6 Ke1 Qg3+ Kd2 N5f3+ Ke3 Rg4 Qd8 Rb3 Qd6 Nfg5+ Nf3 Qd5 Rc1 Rb4 Nb2+ Kc3 Ba2 Rbd4 Nd3 Qg8 Re1 Rc1 Bb1 Rdf4 Rd1 Kc4 Rd2 Rf1 Rd1 Re4+ Kd2 Re1 Nh2 Re3 Qg6 Kd5 Kc3 N1f3 Qf6 Rh1 Qd8+ Ke6 Qd4 Nfg1 Kc4 Kf7 Kd5 Kf6+ Kd6 Kf7 Kc7 Ke6 Qa1 Kd5 Qa2+ Kd4 Qf7 Kc3 Qg6 Kc4 Qd6 Kc3 Nf2 Kb4 Nd3+
1KNk4/1bPb3n/R2p4/p1q2rqR/P2rn3/N1RP1r1r/5n1P/q2BQR2 b - - 0 2 legal: proof: f4 f5 Kf2 e5 b4 exf4 b5 f3 Kg3 f2 Kh3 c6 g3 cxb5 Kg2 b4 Kf3 h6 Ke3 f4+ Kd3 f3 Bb2 Qa5 Bf6 Bc5 Bg5 hxg5 Kc4 Qd8 Kb3 Nc6 Kb2 Be3 Kc1 Bf4 gxf4 Nb8 Kb2 b5 Kb3 a5 e4 g4 a4 g5 c4 g3 c5 g2 f5 g4 f6 g3 c6 Bb7 e5 Na6 e6 Rh3 e7 Nc5+ Ka2 b3+ Ka3 b2 Qe2 Ne4 Qe1 b4+ Kb3 d6 Kc4 b3 Kb5 Rb8 Bd3 f1R Na3 b1Q Be2 f2 Nf3 g1Q Nh4 g2 Ng6 b2 Bd1 Qc2 Rc1 b1B d3 Ba2 Qe2 Be6 Qe1 Qa2 Rc3 Qa1 Nb1 Bd7 Na3 Ba8+ Ka6 Rb4 Ka7 Rd4 Ne5 Bb7 Nec4 Qb6+ Kb8 Qc5 Nb6 Nh6 Ka7 Nf7 Kb8 Nfg5 Nc8 Nh7 Rc4 Kf7 e8R Qg5 Rg8 Qc5 Rg3 Ke8 f7+ Kd8 f8R+ Be8 Rf7 Ba6 Rc7 Bd7 Ra7 Bb7 Qe2 Re1 Qg4 f1R Ra6 Re3 Qe2 Rf5 Qe1 Ref3 Rg5 Qe3 Rh5 Qg5 Rc3 g1N Qf1 Rh4 Qe2 Nh3 Qe1 Nhf2 Rf1 Rhh3 c7+
b2q1R2/bb1BBK1P/3p1Qp1/4PnP1/2R3r1/1n1rBN2/2bBrk1P/bb6 b - - 0 1 illegal: Other
3k1nK1/6b1/b3NP1q/1bB1rpbn/BBpP1R2/2PR4/qBQ1Pb2/3br3 b - - 0 1 illegal: No proof kernel
3b3n/rn2R1B1/2N1PQp1/1R1P2P1/q1p4N/kr3R2/2nPbnbK/2br1R2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 g5 exf4 Bh3 Bf5 Bg4 hxg4 Ba3 Bd7 Bc1 Bc8 Kf2 Kd7 Kg2 Kd6 h4 Kc5 e4 b5 a4 f5 e5 g6 a5 g3 h5 b3 a6 Kb4 h6 c5 h7 f3+ Kh3 f2 e6 f1B+ Kh4 f4 a7 f3 Kg4 f2 Ra5 g2 Kh3 b2 Ra6 Qd7 Qh5 Nc6 Ra3 Nh6 Nf3 g1B+ Kg3 Nf7 Nd4 Bg2 Nf5 f1R Qe2 Na5 Qd3 Ba6 Rh2 Nb7 Qe2 Rd1 Nc3 b1N Ne4 Nc3 Ned6 Ne4+ Kf4 Nf2 Kg3 Be7 Re3 Rhb8 h8R Bd8 Rf8 Nh8 Rf3 Ka4 Rh6 b4 Bb2 b3 Bg7 b2 Nd4 b1N N6f5 Na3 Qe5 Nc2 Rh7 Be2 Nh4 c4 Qf6 Qb5 Nc6 Qa5 Rf5 Ka3 Rf7 Qa4 Rf3+ Nd3 Rf8 Bd4 Kh2 Bb2 Rf7 Bc1 Re7 Rc8 Rf1 Rab8 a8R Nf2 Ra5 Ra8 Rb5 Ra7 Bf8 Rca8 Rhf7 Rb8 Bg7 Na5 Rc5 Rb3 Rb5 Nb7 Qd4 Bb2 Rf3 Bc1 Qf6
K1nb4/1N1bn1rP/4qp2/k2B1B1q/b4PQ1/B4Pp1/P2RR1qq/1bB3r1 b - - 0 1 illegal: No proof kernel
6B1/np1p3b/1P2bR2/P1kq3R/1RQ2Pp1/1RrP1nK1/q1N3b1/3qnrN1 b - - 1 2 illegal: Other
n3r2q/3P4/1qN1R2R/3p1p2/q1PpR2K/nr2bB1n/1k1RPPQb/4N2b b - - 0 1 illegal: No proof kernel
b5nK/1pP1p2N/7Q/qBN1N2P/1n2rNrb/1qn1P1k1/P3Rp1B/1b1q4 b - - 0 1 illegal: Other
R2B3K/q1rr1NpB/Qnb3q1/1Nb1PBp1/2kr1B1P/2p1r3/2P1nrP1/8 b - - 0 2 legal: proof: d4 e5 dxe5 a5 b4 f5 e4 axb4 a4 fxe4 Ra3 h6 Rg3 Ra5 Rg6 Ra8 Rg5 hxg5 Kd2 Ke7 Ke3 Ke6 Kd4 b5 h4 d5 f4 c5+ Ke3 d4+ Kd2 Kd5 a5 e3+ Kd3 b3 f5 c4+ Ke2 c3 Kd3 e2 f6 e1R f7 b4 a6 b2 a7 b3 Rh3 Nf6 Nf3 Qe7 Nh2 Nfd7 Rg3 Nc6 Na3 b1R Qh5 b2 Rf3 Bb7 Qg6 Rc8 a8B Kc5 Bd2 Rbd1 Ng4 b1Q Nh6 Qb6 Nb5 Qf6 Be2 Rc7 Ke4 d3 Rf5 Be7 f8B Qa7 Be3+ Kb4 Bg4 Bc5 Be7 d2 Rf2 Qd6 Rf8 Kc4 Kf5 Re2 Qf6 Nd4+ Kg6 Bd5 Rb8 Rf8 Kh7 Be4+ Qg6 Rff2 Bf4 Re3 Nf7 Ne2 Kh8 Qd3 Qa6 Nb6 Bc6 Bf3 Bcd7 Bc6 Bh5 Qf5 Bg6 Qe4 Bh7 Qg6 Bd6 Rdf1 Rf8 d1R Be7 Rfe1 Bg4 Rdd7 Ra8 Red1 Bd8 R1d4 Bf5
3N4/P1R2N2/q1qbp2k/1PpbP3/2Q1n2r/5q2/PNnpn1n1/NKB2Br1 b - - 0 1 illegal: Other
R7/3k3P/1b2pp2/rP1n1q2/N1NQr1BK/pr2qN2/P3bP2/1rnNnR2 b - - 0 2 legal: proof: g4 b5 e4 h5 gxh5 d5 c4 bxc4 b3 dxe4 Ba3 c3 Bb2 cxb2 d4 c5 h4 a5 h6 g5 h7 g4 b4 e6 h5 f6 h6 c4 d5 c3 d6 e3 Ke2 c2 Rh4 c1Q Qd3 a4 Nc3 g3 Kf3 g2 Kg3 a3 Be2 Nc6 d7+ Ke7 Qd1 Qa5 d8N Ne5 Nb7 Nd3 Nc5 Ba6 Rd4 Ra7 N5a4 Qf5 Rd8 Bb5 Qd2 Ra5 Ra8 Kd7 Bh5 Bc4 b5 e2 Qe3 e1R Bg4 Ne7 Qd4+ Nd5 Rb1 Rg8 h8N Bc5 h7 Re4 Ng6 Bb6 Nge2 g1N Bh5 Nf3 Ng1 Qd2 Rf1 b1R Nd1 Nfe1 Bf3 Nc1 Bh5 Rc8 Nf3 Qe3 Bg4 Be2 Kh4 Rc3 Nge5+ Kc7 Rb8 Rcb3 Nc4 Kd7 Ra8
1N2r3/pR1p2r1/1BR1pR2/4P1q1/1P2nnbN/Q4rqR/3PqPb1/K4kq1 b - - 1 2 legal: proof: g4 b5 a4 bxa4 b4 f5 c3 fxg4 Bh3 c5 Bg2 c4 h4 g5 Bh3 g3 Bg2 g4 Bd5 Bh6 Be6 Bg5 hxg5 Nf6 Bf5 Ng8 Bc2 Bb7 Bb3 cxb3 Rh3 Ba6 Rh1 Bc8 e4 Kf7 c4 Ke6 g6 Ke5 c5 Kf4 c6 h5 e5 e6 c7 g2 g7 a3 Qe2 a2 Kd1 h4 Bb2 h3 Kc1 h2 Nf3 g1Q+ Qf1 g3 Ba3 g2 Kb2 Na6 Qd3 Ne7 g8R Nc5 Qc4+ Ne4 Rg6 Rh7 Rg5 Bb7 c8R Ng6 Qf1 Rg7 Rg3 Qg5 Rc6 Re8 Qd3 Qd1 Rc7 g1Q Nh4 Qe2 Rh3 Q1g3 Nc3 Ba6 Rhc1 h1B Rb7 Bg2 Nb5 Kg4 Rab1 a1R Nc7 Nf4 Rc6 Bb5 Na6 Ra2+ Kc1 b2+ Kc2 Ra1 Rbh1 Rg1 Kb3 b1Q+ Bb2 Ba4+ Ka3 Bd1 Bd4 Qc1+ Ka2 Rf7 Ng6 Rg7 Be3 Kf3 Rh6 Re1 R1h4 Rh1 Qa3 Rh3 R4h5 Bc2 Nb8 Qg1 Kb2 Bd1 Bd4+ Qd3 Be3 Ke2 Nh4 Kf1 Ka1 Bg4 Bb6 Qe2 Rf6 Q3h2 Nf5 Rf3 Rh3 Qg3 Nh4
1R3N2/q2RbK1b/Q1b2RpB/nb2N2r/3pnPkn/Pp4P1/3Rrn1P/8 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 h5 g3 f5 exf5 a5 Na3 axb4 Bh3 h4 Bg2 h3 Nb1 hxg2 Kd2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 e5 c4 e4 f4 e3 c5 e2 c6 e1N a3 d3 c7 d2 Qf3 d1B Be3 b3 Ra2 b4 Bd2 b2 Qd3 b3 Qe3 Qe7 Nh3 g1N Ng5 Be2 Qe4 Ngf3 Rg1 Bb5 Qc2 Nd3 Bb4 Nc6 Ne6 Rh5 Nd2 b1B Qc4 Na5 Rd1 Nh4 Nf3 Nf2 Rad2 Bb7+ Qc6 d6 Ne5 Re8 c8R Ba8 Bc5 Qa7 Rb8 Be7 Nf8 Bc2 Kd4 Bcd3 Qc8 Bac6 Qa6 Qa8 Bb4 d5 Bd6 g6 Bc5 Bdc4 Bb4 Qa7+ Bc5 Kg7 f6+ Kh6 f7 Nf6 Nh7 Qb6 f8R N6e4 Rf6 Qa7 Nf8 Be2 Rc1 Bg4 Ra1 Be6 Rad1 Bg8 Ned7 Nf5+ Ke5 Bh7 Ke6 Nh4 Kf7 d4 Rc1 Rf5 Ne5 Kh5 Bb4 Bd7 Rc7 Bdc6 Nf3 Kg4 Rd7 Rh5 Ne5+ Kh3 Ne6 Bd8 Bf8 Be7 Nc4 Kg4 Bh6 Bc5 Nf8 Be7 Ne5+ Kh3 Rd3 Bd6 Re6 Nc3 Nf3 Kg4 Rf6 Re2 Rd1 Be7 Rd2 Nce4 Ne5+
2n1q3/R2QBrBN/1p2Pbr1/N1b5/5pPB/1Pb2KPB/pr6/n1r1kb2 b - - 0 1 illegal: No proof kernel
b7/pbB1KpQk/P4PN1/B1B1B2p/b2b1NR1/1bn3rP/5P1n/r4n1r b - - 1 3 illegal: No proof kernel
1nK1bqnR/2pR1B2/1r4Q1/n3rpP1/p1P2P2/2nN1PqR/3k1R2/n1Nn4 b - - 0 1 legal: proof: c4 d5 h4 g5 a4 gxh4 b3 b5 e3 bxa4 Ba3 d4 Bb4 Bh6 Bc3 Bf4 exf4 dxc3 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 a5 f3 f5 g5 c2 d5 c1N d6 a3 d7 a4 Ke6 h3 Qc2 h4 Rh2 a2 Qb2 Ra6+ Ke5 Rb6 Kd5 e5 Bd3 e4 Nc3 e3 Nd1 e2 Rf2 e1Q Be4 h2 Ne2 h1N Qg7 h3 Qg6 h2 Nb2 Qf8 d8R Ng3 Rd7 h1N Ke5 Rh2 Bd5 Ne4 Bf7 Nc3 Rb1 a1N Nd3+ Ka3 b4 Ncb3 b5 Na5 Rc1 Kb3 Rd1 Kc2 Rb1 Rb7 Ke6 Kd2 b6 Qg1 Re1 Qg3 Rg1 Rh8 Rgg2 Rh6 Rh2 Ra7 b7 Ra8 Rf1 Nf2 Rh3 Nfd1 Rf2 N5b3 Rf1 Ra5 Rf2 Rd5 Nc5 Na5 Nd3 Nbc6 b8R Bb7 Rdd8 Re5+ Kd7 Ba6 Ra8 Bb5 Kc8 Nb8 Nec1+ Ne2 Qh7 Be8 Rd7 Rb6 Ra6 Rb7 Rah6 Rb2 Qg6 Rb6 Rf1 Nec3 Rh8 Re1 Rf2+ Re2 Rf1 Re5 Rf2+
BK2R3/1bNb4/2bnp2P/P1b1Qr1r/1R2P1r1/pR1p4/1NnP1br1/R2k4 b - - 0 1 illegal: No possible last move
3BB1B1/rp1P1n2/pPpR1nQ1/2q1b3/b1Nn3R/r1PK4/1p1PBr2/2bk4 b - - 1 2 illegal: No proof kernel
2n1N1n1/q3P3/3Rr3/P2p2pP/p3pb2/1kNb2PB/N1brN2n/4KQBr b - - 0 1 illegal: No proof kernel
5n2/1BBr1k1P/2qP2b1/K2p2r1/1QP1pbn1/pb1P1B2/1RN1B1pR/5n1q b - - 0 1 illegal: No proof kernel
n5bK/N4Rrp/4q1rN/1b3rNP/P1pnPkQN/1q1p1n2/2P1p1B1/B7 b - - 1 2 legal: proof: e4 e5 b4 a5 a4 axb4 d4 f6 Ra3 exd4 Re3 f5 f3 f4 g3 fxe3 f4 Bd6 f5 Bf4 gxf4 Kf8 Ba3 Kf7 Bc1 Ke8 Ke2 Ke7 Kf3 Kd6 Kg4 b5 Kh5 g5 h4 c5 f6 e2 f5 Ke5 f7 d5 f8N g4 f6 b3 f7 b2 Bh3 b4 Nd2 b1B Qf1 d3 Qf3 d4 Qe3 g3 Bg4 g2 Be6 b3 Qh3 b2 Nd7+ Kf4 f8N Qe8+ Bf7 Nh6 Ngf3 g1N Rh2 Rg8 Nf1+ d2 Rg2 d3 Nb6 Ra7 Rf2 Nf5 Ne3 d1R Ng5+ Nf3 Rf1 Ba6 Nc8 Rd7 Na7 Nd4 Kh6 Ba2 h5 b1Q Bb2 Bb5 Nf5 Na6 Ba1 Nc7 Be6 Na8 Rf2 Rb7 Bc8 Rg1 Bd7 Rh8 Kg7 Bg8 Nh6 c4 Rf1 Qe6 Ng6+ Ke3 Rf2 Qb3 Nh4 Kf4 Rf1 Bf7 Rf2 Rf8 Bc8 Bg8+ Kh8 Rg3 Rh2 Qe7 Qg4+ Ke3 Rf2 Ne1 Ne6 Rf7 Qf5 Rg6 Ng5 Qd7 Rf4 Nef3 Qe6 Rc7 Rf6 Rfg7 Rf7 Rc5 Qg4 Qf5 Qg3 Qd5 Bh3 Qe6 Bg2 Rf5 Qh3 Kf4 Qg4+
n3r1q1/1k1rR2P/pb3n1B/N2P3R/qp6/n2pp2B/KP1rb2P/2RR3Q b - - 0 1 illegal: No proof kernel
nr1N1K2/1r1pPQ1r/1NRP4/kN1p4/2pb4/PrBq3B/4P2p/n2r1bN1 b - - 0 1 illegal: No proof kernel
5B2/1PqB1N2/r2pbQ2/5n2/5Rp1/pBrP2np/Bn2P2P/1knRK1nb b - - 1 2 illegal: No possible last move
3R2n1/P2n1PpQ/N4rP1/5bKp/q1pnB1P1/1p3B2/4BBr1/bkR2rr1 b - - 0 1 illegal: No proof kernel
1b6/Brn1k1bR/2r2p2/pQ1bqPR1/n4R1p/2p1B1R1/P3rPbP/6KN b - - 1 3 legal: proof: d4 d5 c4 dxc4 g4 e5 d5 b5 Qa4 Qf6 Nd2 Qe6 Ndf3 Qf5 Nd4 exd4 gxf5 Bd6 Bh3 Bf8 Qd1 b4 Bg2 b3 Be4 Ke7 Bb1 Ke8 Bc2 bxc2 Kf1 a5 b4 h5 e4 g5 b5 c5 b6 c3 b7 g4 d6 c4 e5 f6 d7+ Ke7 d8R g3 e6 g2+ Ke2 d3+ Ke3 d2 Rd5 h4 Rc5 Ra7 Re5 Nd7 b8B Nc5 Ke2 Bb7 Rb1 Bd5 Rb2 Bg7 Rb6 Na4 Rb1 Rb7 Qf1 d1B+ Ke1 Be2 Rb3 Bef3 Ne2 g1Q Re4 Bg2 Be3 c1B Bba7 c2 Ng3 Bd2+ Ke2 c1R Rf4 Bc3 Ra3 Be5 Rd3 Rc3 Qb1 Rc1 Qb5 Bb8 Rb3 Rc3 Ra3 Qb1 Rg1 Qe4 Nh1 Qe5 Rb3 Nh6 Ke1 Nf7 Ra3 Ng5 Rb3 Kd6 e7 Ne6 e8R Nc7 Re7 Rc2 Ra3 Rc8 Rd3 c3 Rf7 Be4 Kf1 Re2 Rg5 Bf3 Kg1 Bg2 Rf8 Ke7 Rh8 Ne8 Rh7 Rc6 Bed4 Nc7 Rdg3 Kd8 Bdb6 Ke7 Be3
5b2/R1p1p2q/4P1R1/2qPnPN1/p1nNr3/2BbbP1k/1N1r1pN1/b1KQ4 b - - 0 1 illegal: No proof kernel
b2k1r2/K2nB2p/p3p2n/3pP3/nb2Q3/1bNPnB1R/P1BrP2n/1R3B2 b - - 0 3 legal: proof: c4 g5 h4 gxh4 f4 c5 b4 cxb4 d3 b3 Be3 b2 Nd2 Qb6 Rc1 Qd6 Rc3 Qe6 Nb3 Qe5 Na1 bxa1N fxe5 Bh6 Bg5 Bg7 Be3 Bf8 Kf2 b5 g4 f5 g5 h3 c5 b4 c6 f4 c7 h2 g6 b3 g7 f3 Qc1 a6 Nh3 b2 Bf4 b1N Ke3 f2 Kd4 Nh6 Kc5 Nc2 Kb6 Ne3 Rb3 Nc3 g8B Na4+ Ka5 d6 Rb1 Be6 c8B Bb3 Bg5 Kd8 Bg4 Nd7 Qc4 Rc8 Qe4 Rc2 Bf3 Rd2 Bc4 Rg8 Nf4 Rh8 Nd5 Rg8 Nf6 e6 Nd5+ Be7 Nc3 Rf8 Rg1 h1B Rg3 Bg2 Rh3 Bh1 B1g2 f1N Bb5 Nh2 Bf1 Bd5 Bc4 Bg2 Bb3 Bc4 Bc2 Bb3 Rh5 Bh3 Rh4 Bf5 Rh3 Bg6 Qf4 Be4 Bf6 Ba8 Qe4 d5 Bh4 Nb8 Bf6 Nc5 Kb6 Nbd7+ Ka7 Na4 Bh8 Bb4 Bf6+ Kc8 Be7 Kc7 Bd6+ Kd8 Be7+
Q2R4/4bppP/Rnbk2P1/2b3bn/3b2P1/2pR2bK/pNr2PR1/2B2q1N b - - 0 1 illegal: Other
K4B2/1BpNrP2/1B1nk1p1/1PPq3p/b7/4Ppr1/1BpQ1b1q/Nn1bR3 b - - 0 1 illegal: No proof kernel
1N4r1/P1B3P1/Nk1Kpp2/N2pR3/bN3q2/1p2pP2/PRq1rb1Q/nn1n4 b - - 0 1 illegal: No possible last move, all moves rejected
3nrRk1/1P5p/pb1NpK2/2b2p2/P1Rr1n2/PbR5/Bpq2P2/NR2qQ2 b - - 0 2 illegal: Other
1kqb1bKB/3bQ1pN/1RP4p/P1R1p1R1/3q2NP/2p2qP1/p2r4/rR4n1 b - - 0 1 illegal: No possible last move, all moves rejected
1b2N2K/3qb2N/1p3pq1/pP2BR2/PR2r1R1/n1kb4/qbn2PRP/2Q1b2r b - - 0 1 illegal: No proof kernel
2r1Qq1n/b2NN3/1k1pPr2/np1b1n2/2RPNpr1/2pR1Pq1/1NP5/B2b1K2 b - - 0 1 legal: proof: h4 a5 b4 axb4 d4 e5 h5 e4 h6 gxh6 e3 h5 Be2 h4 Bd3 exd3 g4 h5 a4 f5 f3 b5 g5 c5 g6 f4 a5 c4 a6 d2+ Kf2 c3 a7 h3 e4 h2 g7 b3 e5 b2 e6 h4 Ke2 h3 Ra6 Nh6 g8N Nf7 Nh6 Nc6 Qe1 d1B+ Kf2 Na5 Ng8 Bc5 Qe4 d6 Na3 b1Q Qd3 Rh6 Ne7 Bb7 Qh7 Nh8 Ne2 Rf6 Qg7 Rc8 a8N Ba7 Nc4 Bd5 Bb2 Qa1 Re1 h1N+ Kf1 h2 Ng3 Qc1 Ne4 Ng3+ Kf2 h1R Ba1 Rhh6 Nab6 Nf5 Kf1 Rhg6 Re3 Rg4 Nd7 Qd2 Nb2 Qh2 Rd3 Qg3 Nc6 Qe7 Qg8+ Qf8 Ne7 Kd8 Qg6 Kc7 Rc6+ Kb7 Rc4 Ka6 Qe8 Kb7 Ne5 Kb6 Nd7+
1RN1rNk1/Q1b1b1pb/3r1prp/1nR3q1/2p1P2P/R2n1P2/4nBP1/1R1b1K2 b - - 0 1 legal: proof: d4 a5 b4 axb4 c4 d5 e3 e6 Be2 Bd6 Bf3 dxc4 d5 Be7 d6 Bf8 Bd5 exd5 a4 c5 h4 b5 e4 d4 a5 d3 f3 h6 a6 b3 a7 b4 Na3 c3 Nc4 b2 Qe2 b1R Ra4 d2+ Kf2 d1B Nh3 b3 Nf4 c2 Kf1 b2 Rh3 Nd7 Ra5 Ngf6 Qe1 Be7 Na3 O-O Qe3 c4 Ng6 Re8 Rg5 Nh5 Nb5 Ng3+ Kf2 Ne5 d7 Ne2 Kf1 Nd3 Bd2 c1B Be1 Rb8 a8R Rb6 Bf2 Rd6 Qa7 Bf4 Qc5 Qa5 d8R Bf5 Nf8 Bh7 Rdb8 Ra1 Qd5 b1N Qd4 Nbc3 Na7 Nb5 Rh1 Qd2 Rc5 Raa6 Rg1 Bg3 Nc8 Qg5 Ra7 Rg6 Rh1 Rad6 Ra3 f6 Qe3 Rc6 Qd4 Bc7 Qd7 Rd6 Rg1 Bb6 Qa7 Bc7 Rh1 Ne5 Ke1 Bc2 Bg3 Bb3 Kf2 Bc2 Rb1 Nd3+ Kf1 Bd1 Bf2
1Kn1Q2b/p4Pqk/qnN3p1/2pb3B/PpPNrR2/r3N1PR/5bN1/1n4b1 b - - 0 1 illegal: No proof kernel
N2B1q2/2B1p1R1/2p2b2/1b4r1/p1PBrrp1/P1R1PP2/pK1k4/Qnnr1Br1 b - - 0 1 illegal: No proof kernel
K5b1/2B3B1/2pBp1nR/2PRP1rp/pnBbPQ2/P2pN3/nrk5/4b1nq b - - 0 1 illegal: Other
K2n1R2/N3B2R/qPpr1rrR/P2Nq3/2n3P1/q4P2/k2n1Rp1/1B1r1b2 b - - 0 1 legal: proof: h4 a5 b4 axb4 d4 e5 dxe5 g5 c3 gxh4 Qd5 b3 Qd4 Ra6 Qd1 Ra8 g4 f5 Bd2 b5 Bh6 f4 Qd4 b2 Qd3 b4 Qg3 fxg3 Bd2 b3 Bc1 Bb4 cxb4 Ba6 Na3 Bb7 Nb1 Bc8 Kd2 Kf7 Kd3 Ke6 Kc4 d5+ Kb5 h5 a4 c6+ Kc5 g2 e4 d4 b5 d3 a5 h3 b6 d2 f3 d1R Ra2 h2 Ne2 h4 Nec3 h3 Ne2 Qd5+ Kb4 Ba6 Na3 b1Q Rc2 b2 Rc5 Qba2 Rc4 b1N Nc3 Nd7 Bg5 Rh6 Be7 Rf6 Nab5 Rd8 Bd3 Nh6 Na7 Nd2 Bb1 Nf7 Rc5 Qd6 Nd5 Rg8 Rf1 h1Q Rf2 Qc7 Rc1 h2 Rc5 Bf1 Rb5 Nd8 Rc5 Kf7 e6+ Ke8 e5 Rgg6 Rc1 Qg1 Rc5 h1R Rc1 Qc8 Rc5 Rhh6 Rc1 Nf8 Kc5 Qa6 Kd6 Qh2 Kc7 Qa3 Kb8 Nd7+ Ka8 Qf4 Bb4 Qfe3 e7 Kf7 e8R Qc5 Rh8 Ke6 Rh7 Qd4 Ne3 Qf4 Be7 Qg3 Nc2 Kd5 e6 Kc4 Nb4+ Kb3 Rc5 Qd6 Rh5 Ne5 Nd5 Nec4 Rh1 Qe5 Rh4 Rg7 Rh1 Rhg6 R1h6 Rgf7 Bf8 Rc7 e7 Rd7 e8R Rdd6 Be7 Kb2 Rf8 Ka1 Bd3 Ka2 Bb1+
1N1bR3/bpPpPPn1/pk3R1n/1B6/1P1NK3/qN1rp1r1/p4pN1/6B1 b - - 0 1 illegal: No proof kernel forced: wxLB
1RRN1n1B/P1r2nq1/2P1Pb2/3K1bb1/r3pN2/2r1P2B/n1qn1R1k/r1R5 b - - 0 1 illegal: No proof kernel
b3n2q/1P1r4/3rnB1B/3NqPp1/p1n5/Bb1N1K2/PnR2BPb/nR1k4 b - - 1 2 illegal: No proof kernel
3b1n2/Bp2P1R1/2PnPqb1/1B5R/nK2BBk1/n2r3p/3nNn1P/N5rb b - - 0 1 illegal: No proof kernel
1bN1bb1b/np2Bnq1/1BPP1p2/3B3K/p2Pb1RB/6R1/1P6/kNqrr3 b - - 0 1 illegal: No proof kernel
1BB1nbkb/b3R3/2B2Pbn/p2NBp2/K2P1q1P/R1pN1qr1/P1n1r3/8 b - - 0 1 illegal: No proof kernel
3Kn3/nB1Rpp2/1p1bPk2/2r2n1B/1B1qrN1p/pPN4p/bB2qPP1/R7 b - - 0 1 illegal: No proof kernel
rQ2N1n1/1nPKP1b1/1QN1N3/1qP1k1P1/2p2p2/3p4/1p2Bq1b/R2q1Q2 b - - 0 1 legal: proof: f4 b5 h4 a5 b4 g5 hxg5 Bb7 d4 Bd5 f5 Bb3 axb3 Ra6 f6 Rc6 c4 Rc5 dxc5 exf6 Bd2 f5 Bc1 f4 c6 a4 c5 Qe7 Ra2 Qd8 Rc2 Ke7 Bd2 Ke8 Rc4 bxc4 b5 Nf6 b6 Ke7 b4 Ng4 b5 Nh6 Ba5 Rg8 b7 Ke8 b6 Na6 b8N Rh8 b7 Ng8 Bb6 cxb6 Rh4 b5 Rh5 Nf6 Rh1 Ng8 Kd2 Ke7 Kc3 Ke6 Kd4 h5 g4 f5 e4 d5 g6 b4 g5 b3 g7 h4 c7 h3 e5 a3 Nd7 f3 b8Q f2 Qe2 h2 Qa7 a2 Qb8 a1B+ Nc3 Bd6 Nf6 Qd7 Ne8 Nb4 Nf3 Qb5 Qb6 Bb2 Rg1 h1Q Qd3 Qh5 Be2 f1Q Rh1 Qg2 Ra1 Qhh1 Qd1 Qgh2 Qf1 Nc6+ Ke3 Q2g1+ Kf4 d4 Na2 d3 Nb4 Nd8 Nc6 Nb7 Nfd4+ Kd5 Ne6 Bc3 Qe1 b2 Qf2 Qd1 Qe1 Qg1 Qf1 Nf6 g8Q Bd4 Qh7 Rf8 Qd7 Ng8 Qc8 Bc3 Qb8 Qd4+ Kg3 Ke4 Kh4 Qf2+ Kh5 Kd5 Kg6 Bd4 Nf4+ Ke4 e6 Bg7 e7 Bde5 Ne6 Bh2 Bh5 f4 Bg4 Rf5 Be2 Rd5 Kf7 Rd8 Nf8 Rc8 Ke6 Rd8 Q8a7 Ra8 Kd7 Kf5 Ne6 Qa5 Ncd8 Ke5 Qb8 Qb5+ Nc6+
rQ3r2/pnb4Q/1k2P3/2bRq1Nb/5bP1/Qn1R4/r1nBP2P/b5RK b - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 h5 c4 h4 Nc3 g6 Ne4 d5 axb5 dxc4 g4 Bf5 Bg2 Be6 Ng3 hxg3 Be4 Bc8 Bf5 gxf5 Kf1 Kd7 Kg2 c5 d4 Kc7 b4 f4 d5 f5 d6+ Kb6 e6 f3+ Kf1 f2 Kg2 f1N d7 c3 Qd6+ Nc6 Bh6 c4 Ra2 f4 Qd5 f3+ Kh3 c2 Qh5 c1B Ra1 g2 Ra2 c3 Ra1 c2 Qg5 f2 Qh4 Nf6 Bg7 Nd2 Kg3 f1R Bh6 Qc7+ Bf4 Bc5 d8Q Nb3 Qf8 Nd8 Ra5 Qe5 Nf3 g1B Kg2 Nd5 Qh7 Nb7 Bd2 Bgd4 Rg1 Bd7 Kh1 Ne3 Ng5 Be8 Qfe7 Ba1 Ra3 N3a5 Rd3 Bh5 Rd5 Bcb2 Qf8 c1B Qf3 Nc2 Qa3 Rhf8 Rd3 R1f7 Rd5 Kc7 b6+ Kc6 Rd3 Nb3 Rd5 Rd7 Rd3 Nd8 b7 Kb6 b8R+ Nb7 b5 Rd4 Rd8 Ra4 R8d5 Bbd4 Bc3 Bf4 Bb4 Bd6 Bd2 B4c5 Rc3 Ka5 b6 Bc7 Rcd3+ Kb5 Qc1 Ra2 Qa3 Nd6 b7 Kb6 b8Q+ Nb7 Rgg3 Bb2 Rg2 Ba1 Rg1
3QQk2/1n2nq1p/2r5/bqq3B1/N1PqQP2/4B1KP/rPbr3B/1Rq5 b - - 0 1 illegal: No possible last move, all moves rejected
1n3B2/2R2P2/1nN3bb/Kp3r1n/1P2b1k1/1RPb1Qq1/5nRP/1Qn2Q1n b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 a5 f5 exf5 g6 Bg5 a6 Bh6 Ra7 Bf4 Rb7 Bc1 Rb6 axb6 a5 g4 Ba6 f4 Bc8 f6 Kf7 Bh3 Ke6 f7 Kd5 f5 Kc6 f6 Qe8 Nd2 Qd8 Ne4 h6 g5 h5 Bf5 gxf5 Nf2 Rh7 Ng4 hxg4 Kf2 Rh4 Ke1 Rh8 Kd2 Kd6 b4 Ke5 b7 Kf4 g6 d5 g7 e5 c3 g3 Qf1+ Kg4 Ba3 g2 Qb1 a4 Nf3 g1N Bc1 a3 Kd3 e4+ Kc2 f4 Kb3 d3 Bd2 a2 Bc1 d4 Bb2 d2 Qd1 e3 Bc1 e2 Qf1 e1N Qe2 d1N Qe4 d3 Nd2 Ng2 Ba3 Bf5 Rb1 Qc7 Bc1 Nf2 Nc4 d2 Qe3 f3 Na5 Bg6 Nc6 Ne7 g8Q Nf4 Qh7 Bh6 f8Q Nge2 Rg1+ Ng3 Rg2 Nc8 Qff7 Re8 Qf8 Re4 Kc2 Nb6 Rb3 d1B+ Kd2 a1N Qff7 Na6 b8R Nh5 Rc8 Nb8 Qc4 Rf4 f7 Qe5 Qf1 Bdc2 Rc7 Qg5 Qe8 Bcd3 Ke3 Rf5+ Kd4 Be4 Bf4 Qh4 Bd6 Qh3 Qe5 Qh4 Kc5 Qh3 Ra3 Qh4 Bf8 Nb3+ Kd6 Nc1 Kc5 Kh3 Rb3 Ngh1 Qd1 Qg3 Qf1 Rf6 Qd4 Kg4 Qdd3 Nd1 Qb1 f2 Qg7 Rf4 Qd4 Rf6 Qe3 Rf4 Qfe1 f1B Q1f2 Bfd3 Qf1 Nd5 Rgb2 Rf5 Rg2 Ndf4+ Kb6 Nd5+ Ka5 Nb6 Rc2 Ndf2 Re2 Nd1 Rg2 Ndf2 Qf3+
2BQ4/4NKP1/4r3/3pN3/n2nP1Pn/rnQ2pPR/bN2qb2/n1Qb1k2 b - - 0 1 illegal: No proof kernel
5rbb/Nn2Q1pR/P4BqP/2b1P3/1RP4b/3pQQRk/rn6/3rn2K b - - 0 1 illegal: Other
2Q3rn/1P1N4/KPRrbp2/Q1r1R1P1/1Qp2q2/3Rq3/2PknB2/5brq b - - 0 1 legal: proof: e4 d5 f4 e5 a4 b5 axb5 Bd6 Ra4 dxe4 Ra1 e3 Be2 e4 Bf1 Be5 fxe5 Qe7 Qg4 Qd7 Qd1 Qd8 g4 g6 Nc3 Ke7 Nce2 Kd7 Bh3 Ke8 Nd4 h5 Nf5 gxf5 g5 Ke7 Bg4 hxg4 Ke2 Kd7 Ke1 Ke8 Ke2 Ke7 h4 Ke6 d4 Kd5 b4 Kc4 e6 Kc3 b6 c5 h5 a5 b7 f6 h6 c4 e7 a4 e8Q f4 b5 a3 h7 g3 d5 f3+ Kf1 a2 b6 g2+ Ke1 e2 d6 Be6 d7 Ne7 Be3 Ra5 Bf2 Rg8 h8R Qc7 d8Q Ng6 Qee7 Nc6 R1h3 Qf4 Q1d5 Nd4 Qc8 Rc5 Rb1 a1R Qe5 Ra6 Rb5 Ra5 Qf5 Rc6 Re5 Rd6 Qef8 Rc5 R8h7 Rb5 Rc7 Rc5 Rc6 Nh8 Be3 Kb2 Kd2 f2 Nf3 f1B Rg3 Kb1 Kc3 g1R Bf2 Kc1 Kb4 e1Q+ Ka4 Qee3 Kb4 Nb5 Ka5 Nc3+ Ka6 Kd1 Ne1 Ne2 Nd3 Kd2 Rh3 Qd4 Rf3 e3 Rh3 Rb5 Nc5 Qd3 Nd7 Rc5 Rf3 Qd5 Rg3 Qh1 Rh3 Ng3 Qe7 e2 Qef8 e1Q Qe7 Ne2 Rc3 Rd3 Qef8 Rb5 Qb4 Rd6 Ree3 Qc1 Qfc5 Qe1 Re5 Qc1 Qa5 Qe1 Qcb4 Rc5 Bd4 Qeg3 Bf2 Qge3 Rd3+
KN3k1b/1prQBNR1/1P2n3/3N4/1bPPb1qP/2qQ1n2/4Qpb1/3qr3 b - - 0 1 legal: proof: g4 c5 e4 d5 exd5 h5 gxh5 e5 b4 a6 f4 exf4 a4 c4 c3 Kd7 Ra3 Ke7 Rb3 Ke8 b5 a5 Rb4 axb4 Bd3 Ra5 Bc2 Ra8 Bb3 cxb3 Ke2 g5 Kd3 f5 Kc4 f3 h4 b2 d3 g4 b6 b3 Kb5 f2 a5 f1Q a6 g3 c4 g2 a7 f4 h6 f3 d6 Bh3 h7 Qc8 Qe1+ Ne7 Qe2 Na6 Bg5 Qe1 Bf6 Nc5 Nc3 b1Q Nd5 b2 d7+ Kf7 d8Q Qbd1 Qc7 b1B Qd7 Qc3 d4 f2 Nf3 g1B Rh2 Be4 Rg2 Bh2 Rg5 Bg7 Ne5+ Kf8 Nc6 Bhg2 Nb8 Bd6 Qd3 Rg8 h8N Nc6 Nf7 Bh8 Rg7 Ne5 Bd8 Nf3 Bg5 Ne6 Bd8 Bc7 Bf6 Nf4 Kc5 Bd8+ Kd6 Ne6 Bg5 Bf6 Nc6 Rb8 a8Q Bd8 Qa6 Ra8 Qb5 Ra1 Qb2 Rc1 Nb8 Rb1 Rg6 Rg7 Qbe2 Rh7 Bc1 Bg5 Ba3 Bc1 Bc5 Ba3 Rg5 Bb4 Rg7 Nd8 Qh3 Qg4 Kc7+ Ke8 Be7 Ne6+ Kc8 Ra1 Na6 Rc1 Kb8 Rb1 Ka8 Rc1 Bg5 Kf8 Nb8 Nc7+ Ka7 Qc8 Nd8 Qdb3 Rg6 Re1 Qe6 Rd7 Nf7 Qd1 Rg7 Re7 Qc6 Qg4 Qd6 Ne6 Ka8 Ne5 Qc6 Rc7 Qd7 Nf3 Be7+
5qk1/Pp4Q1/4q2n/NNp2b2/Q2r4/qb3PQ1/1r1pRbPP/n2NBK2 b - - 0 1 illegal: No possible last move, all moves rejected
2K1b2b/5n2/3B2rN/P1BbnB2/1P3bpQ/qr1b2p1/pR1PP3/Q3Qk2 b - - 0 1 illegal: No possible last move, all moves rejected
2R2K2/4QQrN/4qBP1/1pN1P1rb/5nn1/Pqq1b2p/2P4p/q2Q1kN1 b - - 0 1 legal: proof: d4 a5 h4 c5 dxc5 e5 b4 g5 bxa5 gxh4 a3 Bh6 Rh2 Bg7 Rh1 Bf8 e4 Qb6 Bd3 Qc7 Ra2 Qd8 Rb2 f6 Rb4 f5 Rd4 exd4 e5 Bh6 Be4 fxe4 Nc3 Bg7 Nb1 Bf8 Ke2 Kf7 f4 Kg6 g4 d5 c6 b5 g5 Kh5 g6 Kg4 c7 Kg3 a6 Kg2 f5 h5 f6 h3 a7 e3 Kd3 h2 f7 e2 Qe1 h4 Be3 h3 Qg3+ Kf1 Bf2 e1Q Qg5 Bh6 f8Q Qe7 Bg3+ Nf6 Qe8 Na6 Qf8 Bg4 c8N Qe6 Nc3 Bh5 Ne7 Nc7 Qf7 Rag8 a8Q Rg7 Qd8 Qb1 Bf2 Qb3 Ng8 Ng4 Qge7 Be3 Nf6 Rf8 Nh7 Rh8 Qde8 Rf8 Qf3 Rf5 Q8f7 Rg5 Bh4+ Bf2 Kd2 d3 Na4 d4 Nc5 Nd5 Qd1+ Kg2 Ne2 Nf4 Rf1 Bg1 Rf3 Bf2 Ng1 Qc3+ Kc1 d2+ Kb1 d3 Re3 Rf5 Bf6 Rg5 Re4 Be3 Rc4 Kf2 Ka2 Kg2 Qa1 d1Q Qc1 Qa5 Kb3 Qf3 Qd1 Qc7 Kb4 d2 Rd4 Qcc6 Rd8 Qcd5 Rc8 Qa2 Qa1 d1Q Qd4 Qda1 Qd1 Bc1 Nd3 Qeb3+ Kc5 Be3+ Kd6 Qbc3 Kd7 Qe6+ Ke8 Qfd5 Kf8 Qdb3 Nc5 Kf2 Qdd7 Kf1 Qd1+
b1qR4/rrp1pR1Q/q2PP1Q1/3bNnp1/2b5/B4QPb/kPK5/q2R4 b - - 0 2 illegal: No proof kernel
nBn1N2q/r2p1n1q/N1Q4q/3r1p1b/2PPQQ2/kb1K1P2/R2nP3/2bN4 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 h4 gxh4 b6 Nh6 b5 Ng8 Ra3 Bh6 Ra4 Bf8 g3 e6 Rb4 cxb4 Bg2 e5 d4 e4 Bh3 Bc5 Be6 Be7 Bc4 Bf8 Bd3 exd3 Kd2 Ke7 c3 Kd6 b7 h5 b6 a5 g4 h3 g5 h2 g6 h4 g7 b3 Nf3 a4 Qe1 b2 Qf1 a3 Qd1 a2 Rg1 h1Q Rg5 a1N Qa4 h3 Qb5 h2 Rg2 Ne7 g8Q Nb3+ Ke3 d2 Nh4 d1B Rg4 Na6 b8N Nd2 b7 Nc7 Qh7 Nc4+ Kd3 Bb3 Na6 Ra7 b8Q Bh6 Qh5 Kc6 Re4 Na8 Re3 Bb7 Rf3 Nc8 Nc7 N4d6 Re3 f6 Qg4 Nf7 Na6 Kb5 c4+ Ka4 Qd6 Bf3 Qgf4 Bh5 f3 Re8 Nf5 Re5 Qb6 Qh8 Nc3+ Ka3 Qc6 Rd5 Ng7 f5 Ne8 Bg5 Nd1 Bh6 Bd2 b1N Be1 Nd2 Bg3 Bg5 Qhh6 Qh7 Qe4 Qh8 Bb8 Qh7 Nc3 Qc1 Nd1 h1Q Qg4 Qh4 Re6 Be3 Qe4 Qf6 Qhf4 Qfh6 Nc3 Qh1 Nd1 Qh4 Qcc7 Qd8 Rb6 Qdf6 Qc6 Qfh8 Rb4 Nb1 Rb5 Bc1 Rb6 Nd2 Rb5 Ba2 Rb2 Bb3 Ra2+
8/q1kr4/np2p1r1/1PRQb1Q1/3r4/1P2PPR1/pb1Q1KBN/rbr2n1R b - - 0 1 illegal: No possible last move, all moves rejected
bR2nrN1/r2k2Qp/3bpP1q/b7/2PB1Q1b/3r2p1/1n1Q2PP/KR1Rq3 b - - 0 1 legal: proof: e4 f5 a4 fxe4 a5 c6 a6 Nh6 axb7 Ng8 b4 d5 b5 d4 b6 Bh3 Bb5 cxb5 c4 Bc8 Nc3 dxc3 d4 a5 f4 g5 f5 b4 d5 e6 d6 a4 Ra2 e3 Qd5 e2 Qa5 a3 Bf4 b3 Qd5 g4 Qb5+ Nd7 b8R c2 Kd2 c1Q+ Kd3 e1B b7 b2 Nf3 b1R Bg5 g3 Qc5 Ne5+ Kd4 Ba5 Qc7 Qf6 Be3 Nd3+ Ne5 Nb2 Ra1 a2 Qg7 Qh6 Ng6 Qe1 Ne7 Nf6 Ng8 Ra7 d7+ Kd8 Bg1 Ne8 Bf2 Rc1 Rb1 a1B Bg1 Kc7 d8Q+ Kc6 Qdg5 Rd1+ Qd2 Be7 Be3 Bh4 f6 Kd6 Bg1 Bd7 Bf2 Bc6 Be3 Na4+ Kd3 Be5 Bd4 Nb2+ Kc2 Bf3 Rf1 Kc6 Kb3 Bd6 Ka2 Be4 Ka1 Bd5 Ne7+ Kd7 Rh1 Rf8 Ng8+ Be7 Qc2 Rd3 Qd2 Qf2 Rhd1 Qe1 Ra8 Be4 b8Q Bb7 Qe5 Be4 Rb8 Ba8 Qh8 Ba3 Qef4 Bd6 Qg7+
4r1r1/BKn2n2/p1Q2p2/Pp1q1P2/1bQrQbn1/3P2P1/Bp1NR3/B1k2b2 b - - 0 1 illegal: No possible last move, all moves rejected
qNrqN3/4q1r1/4r2P/N3nb1B/1N3QNp/r2RPnkP/1P5r/2b2K2 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra6 h4 Ra1 Qb6 Kd2 e5 Nc3 f6 Ra4 Qc5 Ke1 d3 Nb1 Qd5 Rd4 exd4 Be3 Qh5 Bg5 fxg5 gxh5 Kf7 Bh3 Ke7 Bf1 Ke8 f4 Ke7 c4 Kf6 c5 Kf5 b6 Kg4 h3+ Kg3 f5 a5 c6 d5 b7 a4 c7 g4 f6 g5 f7 a3 Qd2 a2 Qb4 a1Q Qa5 d2+ Kd1 Nd7 b8N Ne7 Qb5 Ng6 Rh2 Ra3 Qc4 Nge5 Bg2 Nf3 Qc6 Bh6 f8N Nde5 Qg6 Bf5 Nh7 Rc8 Qa6 Qa2 Qd3 Qa1 Kc2 d1R Bh1 Rd2+ Kc1 Qa2 Qc3 d3 Nf6 d4 Ne8 Qd5 Qc2 Qa8 Qc4 Rc2+ Kd1 d2 Qa4 Rc6 Nc3 Re6 Na2 Kf4 Qa7 g3 Qa4 g2 Qc4 g4 Nb4 g3 Qc1 Ng5 Nf3 g1R+ Ne1 Rg2 Nec2 Rf2 Bf3 g2 Ne3 Kg3 Bg4 Ngf3 Rh1 Bf4 h6 Bg5 Bh5 Bf4 Rf1 g1R Ng4 Rh2 Re1 Rd8 c8N Rgg2 Ncd6 Rc8 Qc6 Be3 Nc4 Rg1 Qe4 Bg5 Kc2 d3+ Kb1 Be3 Na5 Rgg2 Rc1 d1Q Qd4 Qh1 Rd1 Bc1 e3 Qb7 Qe4 Qe7 Qc4 d2+ Qe4 Nc6 Kc2 Rg1 Re1 Nce5+ Kd1 Ng5 Qd4 Qa8 Rf1 Rgg2 Rf2 Ngf3 Ke2 Nf7 Kf1 N7e5 Re2 d1Q+ Re1 Qd2 Qc4 Qdd7 Rd1 Qdd8 Rd3 Qea7 Qe4 Qae7 Nf2 Rg1+ Ke2 Kg2 Qd4 Rhh1 Qg4+ Kh2 Qe4 Rg7 Ng4+ Kg3 Qd4 Rh2+ Kf1 Ng6 Qc4 Nge5 Qf4+
4rN1r/3B3P/2nbQ1r1/1p2rBP1/2B2kPp/P6B/q1R5/Bn1rbbK1 b - - 0 1 illegal: No proof kernel
6K1/p2Pr1R1/r5R1/3P1R2/p4Qnq/b1RPkN1r/1B1pb1P1/3n1qRn b - - 0 1 illegal: No proof kernel
5BQB/2q1pp1B/Kb1pPr2/1Pb4N/2B2rpq/n3bP1b/1P2RB2/n1k5 b - - 0 1 legal: proof: c4 d5 g4 h5 a4 hxg4 c5 b5 axb5 Ba6 Ra4 Bc8 d4 Kd7 Nd2 Qe8 Nc4 dxc4 d5 Rh6 d6 Rh8 Ra6 Qd8 Rb6 Ke6 d7+ Kf5 Rd6 cxd6 Qb3 Kf6 Qd1 Ke6 Kd2 Kf5 Kc3 Ke4 Kb4 g5 h4 a5+ Ka4 g3 c6 c3 e3 g2 h5 c2 c7 Nf6 h6 Bg7 h7 Nd5 Rh5 Na6 Bd2 c1B Bc3 Nab4 Qe1 Nc2 Nf3 g1B Be2 Ndb4 Bc4 Na1 Nh4 Bd4 Ng2 Bc5 Nf4 Nbc2 Rh2 Na3 Nh5 Rg8 h8B Rg6 Bhg7 Rf6 Bf8 Kf3 e4 B1e3 e5 Ke4 Ba2 Kd3 Bc4+ Kc2 f3+ Bgf2 Qe2+ Kc1 Qd3 Bb6 Qg6 Bec5 Rg2 Bfe3 Re2 Ra7 Bh6 Qh8 d8B Bh3 c8B g4 Bf8 Qh6 e6 Qg5 Qg7 Qh4 Bb7 Bc7 Bcd5 Bf2 Bc8 Rg6 Bc4 N1c2 Bb7 Bb4 Bcd5 Nc4 Kb3 a4+ Ka2 a3 Kb3 a2 Bd4 a1Q Be5 Qa5 Qg8 N4a3 Bh8 Rf6 Be4 Qb6 Bbd5 Ra4 Bg6 Bd2 Bh7 Raf4 Bc4 Na1+ Ka4 Bb4 Bf5 Qb7 Bh7 Bca5 Bb6 Qc7 Bc5 Bb6 Bd4 Bfe1 Bf2 B4c5 Bg1 Bd2 Bf2 Bde3 Ng7 Ba7 Nh5 Qd7 Ka5 Bab6+ Ka6 Qd8 Bd5 Qc7 Bc4
1nn1bN1b/1Kb1kP2/4bq2/4P3/2q5/N2br1NP/1R1bR1P1/2QQ1q1Q b - - 0 1 legal: proof: c4 b5 d4 e5 b4 exd4 a4 a5 axb5 a4 b6 Ba6 b5 Bc8 b7 Ra5 b6 Rb5 cxb5 f5 e4 f4 Be3 fxe3 f4 g6 f5 h5 Qxh5 Ne7 f6 Nd5 Bc4 Ne7 Be6 Ng8 Qh7 Bc5 Bh3 Bf8 Bf5 gxf5 Ke2 c5 Kd3 d5 f7+ Ke7 h3 e2 Rh2 e1B Ra2 a3 Qh5 f4 Qd1 c4+ Kc2 f3 Ra1 a2 Kb2 d3 Ka3 f2 Ka4 f1Q Qg4 c3 Ka5 d2 Ne2 d1B Rh1 d4 Ng3 d3 Na3 d2 Rb1 a1B Rb2 Bc2 Qd1 Bd3 Qc1 d1B Re2 Nd7 Ka6 c2 Ka7 Bd4 b8Q Bd2 Qa8 Rh5 Qd5 Bh8 b7 Re5 b6 Nb8 Qd4 Be6 Ka8 Rf5 e5 Rf3 Qg4 Re3 Qa4 Na6+ b8Q Qd6 Qc8 Nb8 b7 Qb6 Qb1 c1Q Rg1 Qc4 Rh1 Qcb5 Qcc1 Qc4 Qa1 Bb3 Rg1 Bd7 Rh1 Ba2 Qad1 Qbf6 Qab1 Be8 Ka7 Na6 b8N Bb3 Nd7 Nb8 Qcb2 Qe4 Q2c2 Be6 Qcc1 Qc4 Ka8 Bh6 Nf8 Ba5 Kb7 Bc7 Rf2 Re2 Qa1 Bd2 Rg1 Re3 Re2 Kd8 Rh1 Ne7 Qab1 Nc8 Rg1 Q1f4 Rf1 Ke7 Rff2 Bb4 Rb2 Bd2 Re2 Qf2 Qh1 Qg1 Qd1 Qgf1 Qbc1
3NQ3/3R1P1k/2r1nr2/3Pp3/1Pnb1P2/rp1QR2R/N2nbr2/nQ5K b - - 0 1 illegal: No possible last move
2Qb4/1P2n1kN/p4PNp/P2BBqp1/1r6/N3Q1Kp/qPq5/1b2B2r b - - 0 1 illegal: No possible last move
q1k1b2n/r1r2Pnb/PQP5/QN3P2/p2N1n2/2KB1N2/1nB2B2/bb4r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 c5 hxg5 Nc6 d4 cxd4 b5 Nb8 a4 b6 g4 Ra7 Ra3 Bb7 Rb3 Ra8 Rb4 Bc8 Rh3 Qc7 Ra3 axb4 a5 Qd8 a6 Nh6 Ra2 Ng8 Ra5 bxa5 Kd2 h5 f4 d5 c4 Kd7 b6 e5 b7 e4 g6 d3 f6 d4 g5 h4 f7 e3+ Ke1 h3 c5 e2 Kd2 e1N g7 h2 g6 h1R Qf3 a4 Qd1 b3 Nc3 b2 Bg2 b1B Nb5 Nh6 g8N Nf5 g7 Nc6 b8Q Ra7 Na3 Ne5 Bh3 Ng2 Qf1 Ng6 Ne2 Rg1 Nh6 Rc7 g8B Bg7 Kd1 d2 Nb5 Bb7 Ba3 Bc6 Qb6 Qa8 Bh7 Kc8 Qe1 Be8 c6 Bf6 Ng4 Ng7 Bb2 Rg8 Ba3 Nh8 Bc5 Rf8 Bc2 Ra7 Nc1 Be5 Ke2 d1N Kd2 d3 Bf2 Ba1 Nb3 Nb2 Kc3 d2 N3d4 d1B Nh2+ Bg4 Qe5 Bf5 Nhf3 Rg8 Bg4 Rc7 Bh5 Bh7 f5 Nf4 Qd5 Re1 Qdc5 Ree7 Qb4 Ra7 Q4a5 Rec7 Bd3 Nge6 Bc2 Rg1 Bg4 Ng7 Bh3 Bd7 Bf1 Be8 Bfd3
RN3Rq1/k7/nN1bp1P1/q1n3K1/1Prq3P/rQn1P1n1/1rQ1Q3/1R4n1 b - - 0 1 illegal: No possible last move, all moves rejected
rN1b2b1/1bk1PP2/p1P1K3/1rQ1R2n/nPp1R3/2bqNQ2/8/3n1QNb b - - 0 1 illegal: No proof kernel
1nQ5/qrB1R1r1/2PK2k1/n1pP1P2/1q5r/4b3/1PQR2pR/1BB2qrb b - - 0 1 illegal: No possible last move, all moves rejected
1K3nRr/1bQRP2N/Ppkb1P2/6PR/1n1Q3Q/1N2rq2/1n3p2/qr3r2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 c4 d5 cxd5 Bd7 b4 axb4 f5 Bc8 e4 Qf6 Bb5+ Nd7 Bb2 Kd8 Bc6 Nb6 Bd7 Qd6 Be6 Nd7 Bd4 Ke7 Be3 Nb8 Bf4 exf4 e5 Qd8 Bd7 Bg7 e6 Kd6 e7 Bf8 Be6 fxe6 Qc1 Kd7 Qc2 Ra3 Qd1 Ra8 Kf2 h5 Kf3 c5 Ke4 h4 Ke5 c4 d4 b3 a4 b6 g4 f3 a5 h3 a6 h2 g6 b2 g5 c3 d6 c2 d5 c1N g7 Bb7 Qd4 Nc6+ Kf4 e5+ Ke4 Nd3 Nh3 Ncb4 Nd2 b1R Nb3 Nb2 Nf4 f2 Nh5 Rc8 Rd1 h1R Rd2 Rc3 Nf6+ Kc8 d7+ Kc7 Ra4 Qa8 Nh7 Rhf1 d8R Nh6 g8Q Bg7 Qe8 Ng8 Qh5 Bf6 Qh4 Bg7 Rd3 Nf6+ Ke3 e4 Kf4 e3 Ke5 e2 d6+ Kc6 Rg8 Qf8 d7 Qf7 d8Q e1Q+ Re3 Qc1 Rd3 Qf8 Ra1 Nd7+ Ke6 Be5 f6 Bd6 Rh3 Bc5 Ra3 Qe8 Ra1 Qh5 Ra5 Bd6 Rd5 Bc5 Rh1 Qf3 Rh3 Ne5 Rd7 Re3 Qhg4 Ra1 Rh5 Qb1 Qh4 Qa2 Rg6 Rab1 Rg7 Qa1 Rg8 Kb5 Rd6 Ng6+ Kd7 Nf8+ Kc7 Qh1 Rd7 Qf3 Kb8 Kc6 Qd1 N4d3 Qd2 Nb4 Qdd4 Bd6+ Qc7+
5K2/qPnQ1Q1B/rP1r2p1/N1n5/N4bN1/kr1p2PP/2pQ3B/r5bq b - - 0 1 legal: proof: c4 b5 d4 h5 e4 c5 g3 h4 b3 b4 a4 h3 Ra2 Ba6 Rd2 Bb5 axb5 Nf6 Rc2 Ng8 Rc3 bxc3 b4 f5 exf5 cxd4 Nf3 Rh5 Rg1 Rh6 Rg2 hxg2 Ng1 Rh8 Ke2 a5 Kd3 d5 f4 Kd7 h3 Kd6 c5+ Kd7 b6 Kc6 b7 Kb5 c6 e5 f6 a4 f7 c2 f5 a3 f6 Ka4 b5 a2 Nd2 a1R Ne2 g1B Nb3 Bd6 f8N Qe7 f7 Na6 Na5 Nf6 Qd2 Nd7 Nh7 Rhb8 f8Q Nc7 Qf7 Ra6 Nf6 g6 Nc3+ Kb4 Ng4 e4+ Ke2 e3 Kf3 Bc5 Bc4 e2 Kf4 d3 Bb3 Bcd4 Na4+ Bc3 Bc4 e1Q Ba2 Qc5 Kg5 d4+ Kh6 Qa7 Kg7 Nc5 Be6 Qe4 Bb3 Qh1 b6 Re8 Bc4 Re3 Kf8 Rf3 Qe2 Bb2 Be3 Ka3 Qd2 Bc1 Bf2 Na8 c7 Re3 c8Q Nc7 Qe2 d2 Qcd7 d1R Qd2 Rb3 Be3 d3 Bd4 Rf1 Bd5 Rf6 Bc4 Be3 Bd5 Bf4 Bg1 Rd6 Bh2 Be3 Qff5 Bg1 Bg8 Rb2 Qff7 Rb3 Qe3 Bd2 Bh7 Bc1 Qe1 Bf4 Qd2
BR1rkb2/4B3/qPpQ2P1/pb3bq1/b2b4/n3Q1p1/P1P2nKQ/BR6 b - - 0 2 legal: proof: d4 c5 Nd2 cxd4 Nb3 Qb6 Na5 Qc7 Nc6 Qd8 f4 bxc6 e4 g5 fxg5 d3 Rb1 d6 Ra1 d5 g4 a5 g6 d4 Nf3 h5 g5 Ra7 Ne5 Rd7 Ng4 Rd5 exd5 hxg4 Kf2 f5 h4 e5 b4 f4 g7 e4 g6 d2 h5 g3+ Kg2 d3 d6 e3 b5 e2 h6 e1B b6 f3+ Kg1 f2+ Kg2 Nd7 h7 Nh6 g8Q Ng4 Qg7 Nde5 Qg8 Nc4 Be2 Qg5 Rh5 Bf5 Bb2 Na3 Qb3 Rg8 h8Q f1B+ Kh1 Bf2 Rb1 Be3 Ba1 Nf2+ Kg1 Bd4 d7+ Ke7 d8B+ Ke8 Qh6 Rh8 Be7 Rg8 Qe1 d1B Qe6 d2 Ba6 Bb5 Qd6 Bde2 Bb7 d1Q Ba8 Ba4 Kg2 Beb5 Qe3 Qe2 Rh4 Qc4 Rf4 Qe6 Qh2 Qc8 Rh4 Qa6 Rh8 Rg7 Qc7 Rf7 Qcf4 Rf6 Qfe5 Rd6 Qc5 Rd7 Qd6 Rd8 Rh7 Qc8 Bf6+ Be6 Ra7 Qa6 Be7 Bg4 Rb7 Bf5 Rb8
1nr2k1K/8/Q2b1p1Q/2bPBPp1/P1rqN3/B2B3p/1bb1NqPr/5N2 b - - 1 2 legal: proof: c4 b5 h4 g5 b4 Nc6 h5 Ne5 cxb5 a5 Nf3 axb4 Ng1 Ng6 hxg6 d5 a4 Bb7 Rh4 Bc8 Rc4 e6 d4 dxc4 d5 e5 Ra2 Rb8 Rd2 Ra8 Rd4 exd4 Kd2 h5 e4 c5 f4 f6 g7 h4 b6 d3 Ke3 b3 b7 c3 b8B d2 e5 c4 Kd4 b2 e6 c2 e7 c3 Qe1 d1Q+ Bd2 c1B Bc4 c2 Qe2 Bf5 Be5 Rc8 Bd3 h3 Bb4 Qb6+ Bc5 Rh4 Nd2 b1R Nf1 Ba3 Qh5+ Bg6 Qh6 c1B Ne2 Bcb2+ Ke3 Kf7 e8N Ne7 Nd6+ Kg8 Kf3 Nc6 Ne4 Nb8 Ke3 Kf7 g8Q+ Ke8 Qgg7 Bd6 Qb7 Qc2 Qa6 Kf7 Nfg3 Rh1 Nf1 Rh2 Kf3 Qc3 Kg3 Qd4 f5 Bh5 Ng1 Bd1 Ne2 Bc2 Kf3 Rf4+ Kg3 Rf2 Kg4 Rf4+ Kh5 Qf2 Bb4 Qbd4 Bc5 Ke8 Kg6 Ke7 Kg7 Bb4 Bb6 Bbc5 Ba5 Ke8 Kh8 Rg4 Bb4 Rf4 Qh5+ Kf8 Ba3 Rf3 Bb5 Rc3 Bd3 Rc4 Qh6+
r2r1q2/1B2pPBN/nb5N/1P2pQK1/1rk3BN/n3P3/1Q3Prp/4n1q1 b - - 0 1 legal: proof: b4 b5 a4 c5 g4 f5 gxf5 bxa4 b5 d6 Ra2 Qa5 Rb2 Qd8 Rb4 cxb4 h3 g5 Nc3 g4 Nb1 Bb7 Rh2 Bf3 Rg2 Bb7 Rg3 Bc6 Rf3 g3 Re3 Bf3 Re5 Bg4 hxg4 dxe5 c4 Kf7 d4 a5 Kd2 h5 Ke3 a3 f6 Ke6 f7 a4 g5 g2 g6 a2 g7 a1R c5 Kd5 c6 h4 c7 h3 c8B a3 Nc3+ Kc4 d5 a2 d6 b3 d7 b2 Ne4 b1N Kf3 h2 Kg4 Nf6+ Kg5 Na3 g8N Nh5 Nf3 g1R+ Bg2 Nf4 Nef6 Rb1 Nh4 a1Q Nh7 Na6 Nh6 Rb4 Qd2 Nd3 Qb2 Ne1 Be3 Qe8 d8Q Bg7 Bd2 Qf8 Bg4 Qd1 Bb7 Rg2 Qd7 Bf6+ Kh5 Bg5 Qf5 Be3 Kg6 Bb6 Kg5 Nec2 Bf4 Qg1 e3 Ne1 Kh5 Rb3 Bg5 Rb4 Bf6 Rg8 Bh8 Rg6 Bg7 Rd6 Kg5 Rd2 Ng8 Rdd8 Nh6
2K1B1k1/1PpRRnR1/2PP4/BQp4b/2QrB1p1/n4q2/nrP1p3/2r1q3 b - - 1 2 illegal: No proof kernel
4Q3/1Ppbp2B/K1BN2p1/pQ2k3/b1P2r2/2bnP3/N1QNP2q/n3q2b b - - 0 2 legal: proof: a4 b5 axb5 a5 h4 d5 g4 d4 b4 g6 c4 Bd7 g5 Ra6 Rh3 Bc8 Rc3 Re6 Raa3 Re4 Rf3 Re3 fxe3 Bb7 Bb2 Ba6 Rd3 Bc8 Bc3 dxc3 Rf5 gxf5 g6 f4 g7 Na6 Rd6 Nb8 Rg6 hxg6 d4 Kd7 h5 Ke6 d5+ Ke5 b6 f5 b5 f3 b7 f4 b6 c2 Kd2 c1Q+ Kd3 f2 h6 f3 d6 Nf6 g8B Ne4 h7 Nc6 b8Q Bd7 b7 Bg7 Bg2 f1B Qc2 f2 Nc3 Nd2 Na2 Nb3 Kc3 Qf8 Qe8 Nb4 Bc6 Qe1+ Kb2 Na1 Ka3 Bg2 Ka4 f1B Kb5 Nd3 Ka6 Bh1 Nf3+ Kf6 Nd2 Bfg2 Qb1 Ke5 Qc2 Be6 d7 Qff2 d8Q Bd7 Qc8 Qh4 Qb8 Qh2 Qa7 Bd5 Qb6 Bf7 Qb5+ Bfd5 Be6 Rf8 h8N Rf4 Bg8 Bf6 Qbb1 B5e6 Bh7 Bg4 Bf3 Ba4 Bc6 Bd7 Qb5+ Ke6 Nf7 Bc3 Nd6 Kf6 Qbb2 Ke5 Qb5+
Bbr5/N1pp2P1/3BQ1n1/1b5p/brkn2P1/K3P3/2Ppp1n1/Q4QBN b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 e5 Kd2 exd4 Ke1 f4 b4 f3 e3 Qf6 Ra3 Qh4 Rd3 Qd8 Rd2 g5 Re2 fxe2 f4 Ba6 Kd2 Bc8 g4 Qf6 h4 Ba6 f5 Qe7 Bg2 Bg7 Be4 Bf8 Bd3 Bc8 Rh3 Na6 Rf3 Nb8 Rf4 gxf4 Qf1 Nh6 Qd1 Qg5 hxg5 Ng8 f6 Kf7 g6+ Ke6 g7 Kd5 b6 a5 b5 h5 f7 a4 b7 a3 b6 f3 Qe1 a2 Be4+ Kc4 Bc6 a1N Qf2 d3 Nh3 Nh6 Qf1 f2 Ba3 Ra4 Kc1 d2+ Kb2 Nb3 Bd6 Nf5 Nc3 Nh4 Bh2 Bc5 f8B Rb4 Bg1 Ng2 Nb5 Nd4+ Ka3 Rg8 Bf3 Nbc6 b8Q Ne7 b7 Ba7 Qa8 Bb8 Na7 Ng6 Bd6 Rf8 Qd1 f1B Nf2 Ne1 Nh1 Bg2 Bc6 Be4 Qb1 Ng2 Qf1 Bd3 Nb5 Rg8 Qa5 Rh8 Na7 Rd8 Bf3 Be4 Qf5 Bc6 Qa1 Ba4 Be4 Nf8 Qff1 Ng6 Qf7+ Ne6 Qe8 Rb6 Bgh2 Nd4 Bg1 Rb5 Nc6 Ba7 b8Q Ba6 Bf3 Rc8 Qe6+ Rd5 Qbb1 Bb8 Qf6 Rg5 Na7 Rb5 Ba8 Rb4 Qbf1 B6b5 Qe6+
2QQ1bq1/K2pr1qP/p4B2/2p4r/R1bR1r2/P2q1nr1/PB1P3k/2RBn3 b - - 0 1 illegal: No proof kernel
b1Q1k3/r4R1R/2Npp1QP/2n2p2/RKn1b3/1P1rP1n1/N2Ppb2/1qN3q1 b - - 0 1 illegal: No proof kernel
4nQB1/1rp1pp2/1npPP3/2B1B2b/p2p1R1b/P2P1Q1K/3rq3/bQR4k b - - 1 3 illegal: No possible last move
K2b1R2/PQ1R1B2/1q4nq/R5bN/3QPnP1/3b1Pb1/1k3q2/1qrR1rr1 b - - 0 1 legal: proof: c4 a5 h4 e5 b4 axb4 c5 g5 hxg5 d6 cxd6 Ra6 Nc3 Ra7 Nb1 Ra8 d4 Qf6 e4 Qd8 Be3 f5 d5 f4 Na3 fxe3 Nb5 Nf6 Nd4 exd4 Rc1 Ng8 Rb1 Be6 Ra1 Bc8 Ke2 Kf7 Kd3 h5 Kc4 b5+ Kc5 d3 g4 d2 a4 b3 a5 b2 g6+ Kf6 a6 Ke5 a7 b1R g7 b4 f3 h4 Qb3 d1Q Rh2 e2 Ra6 e1B Rha2 h3 Qc2 h2 Qb2+ Qd4+ Kb5 h1Q d7 c5 d6 b3 Qa1 c4 Rc2 c3 Rc6 b2 Qa5 Na6 Rh2 c2 Qb6 c1B Qb7 Be7 Rcc2 Qf2 Kc6 Kd4 Bc4 Nc7 Rh5 Ne6 Bb5 Bcg5 Bd3 Nf4 Rd2 Kc3 Bc4 Qa5 Be6 Bd8 Rd1 Rc1 Bb3 b1Q Bf7 Rb8 Ne2+ Kc2 Ng3 Qab4 Rh7 Qh6 Nh5 Q4b2 Rd5 Qbf6 Ra5 Qe6 Qb6 Ba6 Qc7 Bd3 Qb7 Nf6 g8Q Ng6 Qg7 Nd5 Qd4 Ndf4 Rg7 Qeb3 Rg8 Q3b2 Rf8 Qb4 Qb5 Rc8+ Kb7 Rc3 Kb8 Kb2 Qb7 Qb6 Ka8 Rd1 Qc4 Rcc1 Qa4 Bde7 d8R Bef6 Rd7 Bd8 Rf5 Bb4 Ra5 Rg1 Re7 Be1 d7 Qg2 Qc4 Bg3 Qc5 Qf2 Qc4 Bc7 d8R Rh7 Rd4 Bd8 Red7 Rcf1 Bg8 Re7 Bf7 Re5 Qa4 Rc5 R4d6 Rcc1 Rdd5 Be2 Rd1 Bd3 Qd4+
2bn1r2/P1R2P2/1qnp1PQN/bQ4KB/1nk3n1/3rnqB1/1q1P3Q/Q7 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 b5 f6 Nh6 f5 Ng8 b4 axb4 cxb5 Ra4 Nh3 Ra6 Ng1 Ra8 g4 Bb7 a4 Ba6 Nc3 Bc8 Nce2 h6 Nf4 gxf4 g5 h5 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 Kf2 Kf7 h4 e5 b6 c5 h5 b3 a5 g3+ Kf3 b2 Kg4 b1Q a6 g2 b7 c4 a7 e4 h6 f3 h7 e3 Qe2 c3 Rh2 c2 Rh3 f2 Qd1 e2 Ra3 e1N Re3 Nd3 Kh4 Qb3 Re1 Ne7 Re5 Qdb6 Rc5 Nb4 Ba3 c1Q Rc7 Qf3 Be2 f1N Nh3 g1N Nf2 Ne3 Ng4 N8c6 b8Q Qb2 Qa1 Nd8 Kh5 Rg8 h8Q Nh3 Bd1 Nf2 g6+ Ke8 g7 Kf7 Kh4 Nec6 Kg5 Bd6 Qh2 Rf8 Qb7 Be5 Qa6 Bc3 Qf1 Nfd3 Qfe2 Nde5 Qb5 Rb8 Nf2 N5g4 g8Q+ Ke8 f7+ Ke7 f6+ Ke6 Qg6 Ra8 Qa6 Kd5 Qa5+ Kc4 Qae5 Nbd5 Bd6 Ba5 Qef5 Nb4 Bg3 d6 Qe5 Rb8 Qe8 Ne5 Ng4 Rb7 Nh6 N5g4 Bc2 Qa6 Ba4 Rb5+ Qe5 Qb6 Bd1 Rd5 Be2+ Rd3 Bd1 Qf1 Bf3 Nf2 Bh5 Nfg4 Qef5 Qf3 Qb5+
qr1r4/bbNQb1n1/1p3P2/Nk2P1K1/1pb2N1P/1R2qbN1/1P2Q2B/7q b - - 0 1 illegal: No possible last move
qb5K/2nBb3/1PQ1P1bP/1r2Rbkp/2N4P/bnnBn1B1/3p1Q2/2B5 b - - 0 1 legal: proof: g4 a5 a4 e5 b4 b5 e4 f5 g5 Ra6 Ra3 h5 Rd3 Rah6 axb5 c5 gxh6 c4 Nc3 Bb7 Rd4 exd4 d3 cxd3 e5 Bc8 Ne4 fxe4 Kd2 Kf7 c4 Kg6 f4 d5 c5 a4 c6 a3 b6 a2 b7 a1N c7 e3+ Ke1 d2+ Ke2 d3+ Kf3 e2 b5 e1B f5+ Kg5 f6 d4 Ke4 Ba3 f7 Bh4 f8Q Nf6+ Kf3 Nb3 Qc2 Nd5 Ke4 Nc3+ Kf3 Na6 b8B Bf5 c8B Nc7 Bb2 d1N e6 d2 Bd3 Ne3 Bd7 g6 Qc5 d1B+ Qe2 Qc8 Qc6 Bc2 Qf2 Qa6 Bc1 Qa8 Qe4 Rc8 Qc6 Bg3 b6 Rg8 Bc4 d3 Bb5 d2 Bd3 Ne8 Bc7 Bgd6 Bb8 Be7 Bg3 Nc7 Ne2 Bad6 Nf4 Rd8 Re1 Be5 Bc8 Rd5 Bd7 Rb5 Nd5 Na6 Nf6 Bb8 Ng4 Nc7 Ne5 Kf6 Kf4 g5+ Kf3 g4+ Kf4 Bb1 Nc4 Kg6 Bh4 g3 Re2 g2 Bg3 g1B Re1 Bc5 Ke5 Kg5 Re2 Kg4 Kf6 Ba3 Kg7 Kg5 Re1 Bg6 Kh8 Be7 Bf1 Bbf5 Bd3 Nc2 Qe2 Bgc5 Qf2 Ba3 Re5 Ne3 h4+
3K3b/1P1PN1b1/1B1pp3/Pn2rNr1/3rnq2/R3P1Q1/QpNk2N1/2q3q1 b - - 0 1 illegal: No proof kernel
1n2qn1r/p1K1Qbqp/1Q1P3b/R3Q1p1/PP2r1B1/rn1N2k1/P1Q1B3/8 b - - 0 1 illegal: No proof kernel
1Q4nK/k2r2P1/3rR1p1/P1P2b1b/5Q2/1Qn1BPqb/2p2RNp/1b1Qb3 b - - 0 1 illegal: No proof kernel
3n2b1/rN2p2r/BB2Bbb1/K1P1Pn2/2r2q2/QP1p2b1/3P2pR/2qQB2k b - - 0 1 illegal: No possible last move, all moves rejected
bKn5/1Q4Qp/rb1Qb1rP/2bp2n1/p6N/PQq5/qk1PB1P1/2N1n2R b - - 0 3 legal: proof: f4 b5 b4 e5 Nh3 exf4 Ng1 c5 bxc5 b4 Ba3 b3 Bb2 Bd6 Bc1 Bf8 a3 g5 Ra2 bxa2 Kf2 g4 Ke1 Ba6 Nc3 Bb7 Nb1 Bc8 Bb2 g3 Bg7 Ba6 Bd4 Bc8 Be3 Nf6 Bf2 Ng8 Qc1 gxf2+ Kd1 Qa5 Qb2 Be7 Qa1 Qd8 Kc1 Bf8 Kb2 Bh6 Nc3 Qh4 Qd1 Qf6 Kc1 Bf8 Nb1 Qd8 Kb2 Ke7 Kb3 Ke6 Kb4 Kd5 Kb5 a1B h4 a5 h5 f5 e3 a4 h6 f3 c3 f4 c6 Na6 c7 Qf6 Ka5 Ne7 Qc2 Nc5+ Kb5 Ne6 Kb6 Ra6+ Kb5 Bb7 c8Q Ba8 Qd1 Rg8 Qb8 Rg6 Be2 f1B c4+ Ke4 c5 f2 c6 f3 c7 Nc8 Qb6 Qc3 Qb3 Ng5 Qf6 Bc5 Qg7 Ne7 c8Q d5 Qch8 Nc8 Qhf8 Bb6 Qd6 Bb2 Bc4 Bd3 Qb7 f1Q Kc6 f2 Nf3 Qd1 Nh4 f1N Kd7 Bc5 Kc7 Qdc2 Kb8 Nh2 Qg7 Be2 Bb5 Bd1 Be2 Nhf3 Qg8 Q3d3 Qb7 Bb6 Bf1 Be5 Qgg7 Qdb3 Bb5 Qcc4 Nc3+ Kd3 e4 Kc2 Ne2 Ne1 Nc1 Bed4 e5 Bg4 e6 Bdc5 e7 Qa2 e8Q Bd7 Qe3 Be6 Qf3 Qd4 Qe3 Kb2 Be2 Qe5 Qd3 Qf6 Qc4 Qc3 Qb3+
5nQ1/n1bnQ1Pb/3pB2Q/3Pk1rq/K4p1R/1p2nNr1/PP1n3Q/2Bn4 b - - 0 1 illegal: No proof kernel
r6r/3Q1p1p/kqp2PB1/np2q1Q1/1P1b1N1P/4B2K/2P1Qb1b/2RQ2rn b - - 5 6 legal: proof: e4 g5 b4 d5 f4 dxe4 f5 b6 Nc3 Na6 Nd5 Nb8 Nf4 gxf4 Rb1 Qd5 a4 Bb7 a5 Qd7 a6 Qd8 axb7 a5 Rb2 a4 Rb3 axb3 Kf2 Kd7 g4 Kc6 Kg2 e5 d4 f3+ Kg3 b2 h4 b1R f6 f2 g5 e3 g6 e2 d5+ Kb5 d6 e4 g7 e3 d7 Bd6+ Kh3 Nh6 g8Q Nc6 b8Q Ka6 Ba3 b5 Qd4 e1B Qg2 e2 Qg8 Bc3 Bc1 e1B Ne2 Bh2 Bd2 Na5 Bg2 f1Q Be3 c6 Nf4 Bf2 Qd1 Qb6 d8Q Qe2 Qe5 Ng4 Qgg5 Bd4 Be4 Qe1 Qd7 Qc3 Qe2 Rg1 Qed6 Qcc5 Bg6 Qe5 Qd5 Nh6 Nd3 Nf5 Nf4 Ng3 Qdf3 Rg2 Rb1 Nh1 Rc1 Rg4 Qd1 Rg1 Qfe2
2N1B3/1N2PN1R/B3K1Pq/1P1n2r1/1n1p1bpq/2kq2Nq/rqP5/3N4 b - - 0 1 legal: proof: f4 b5 b4 e5 fxe5 g5 a4 c5 axb5 h6 e4 Bb7 g4 Qa5 d3 Bd5 Bf4 Bc4 dxc4 Qc7 Qd4 cxd4 c5 Qd8 Ra3 Ke7 Rg3 gxf4 g5 Ke8 g6 Qf6 Rg4 Qd8 Rg5 hxg5 Kd2 Ke7 Kd3 Ke6 Kc4 f5 h4 d5+ Kd3 a5 h5 a4 b6 f3 b7 a3 h6 f2 c6 g4 b5 a2 c7 a1Q c8N f4 h7 f3 Rh3 Nf6 Rh6 Na6 b8N Qb2 Rh5 Bd6 Bg2 f1Q+ Ne2 f2 Nc6 Qh1 Na5 f1Q Nc3 Qh2 Bh1 Qfh3+ Ng3 Qf8 Bg2 Qh6 Nd1 Rf8 h8N Nb4+ Ke2 Ra7 Nb7 Ra2 Nf7 d3+ Kf2 d2 Ke2 Qh8 Ke3 d4+ Kf4 Qh4 Rh7 Q2h3 Nc3 d1Q Bh1 Qe2 Nd1 Qd3 Bg2 Kd7 Kf5 Nfd5 e6+ Kc7 e7 Bf4 e8B Qh6 Na7 Kb6 Ke6 Q6h4 e5 Qg7 Nbd8 Ka5 Nc8 Qgh6 Nb7+ Ka4 Kd7 Ka3 e6 Ka4 e7 Ka3 Nfd6 Rf5 Nf7 Rg5 Bf3 Na6 Bg2 Kb4 Ke6 Kc4 Bf3 Nab4 Nbd8 Ne3 Bb7 Ned5 Ba6 Qdb3 Nf2 Qd3 Nb7 Kc3 Nd1+
KB5b/N4P2/1Pn2b1p/1NP2N2/1N5R/N1n1q1rn/knnPB1n1/1b2r3 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 gxh4 b6 f5 exf5 Bg7 Qg4 Bh6 Qd1 Bf8 c4 d6 b4 Bg7 b5 Bh6 Ra4 Bf8 Rb4 cxb4 c5 d5 Qb3 Qc7 Qc2 Qd8 Qc4 dxc4 Ke2 Kd7 Kf3 e5 Ke4 a5 Kd5 e4 g4 c3 f4 b3 g5 c2 b7 b2 g6 h3 b6 h6 f6 e3 g7 a4 f7 a3 f5 h2 f6 a2 Be2 a1B Bc4 e2 Ba6 e1N Bf1 Qe7 Ne2 Ng2 Ng1 Na6 Nf3 Qe3 Nc3 b1N Bd3 Be7 Ba3 c1N Be2 Nd3 Nb5 Nb2 Ne1 Bd8 Nd3 Rb8 Rc1 h1N Rc4 Nf2 Rh4 Nh3 Bb4 Rh7 Bc3 Be7 Na3 Bd8 Nb4 Rh8 Re4 Ne7+ Ke5 Rf8 g8N Nc6+ Kd5 Re8 Ne7 Rg8 Be5 Rg3 f8N+ Ke8 Kd6 Ra8 b8N Kf7 Nbc2 Nd3 Nd4 Nab4 Na6 Bd7 Nac2 Bf5 Nc8 Bc3 Rh4 Nb2 Ng6 Ra7 Nc7 Ra1 Nd5 Be7+ Kc7 Bd3 Nb5 Ke6 Kb7 Bd4 f7 Nc3 Bd6 Re1 Bf4 Bh8 Be5 Bef6 Nca3 Bb1 Nge7 Nc2 Nca7 N2b4 Bb8 Nc2 Ndc7+ Ke5 Na6+ Ke6 Nf5 Kd5 Bg4 Na1 Nc2 Kc4 Nab4 Kb3 Nca3 Nc2 Bh5 Nhf4 Ka8 Nh3 Na6 Ka2 Bf3 Bfg7 Be2 Bf6 Nb4+
q3bk2/1n2bqPp/1B1p2nP/nb4N1/1N1N4/PPbR4/N3N1KR/3rb3 b - - 0 1 illegal: No possible last move, all moves rejected
b3qN2/q3N3/1QPK1PRp/1p5P/r2bRP2/1N1N3b/b6k/1Nrb2nr b - - 0 1 legal: proof: d4 a5 e4 f5 b4 axb4 Bb2 c5 dxc5 e5 Bd4 exd4 f4 Nc6 g4 Bd6 e5 Bf8 Bg2 Nce7 Be4 fxe4 Ne2 Rb8 Ng1 Nf5 gxf5 Ra8 Ke2 Kf7 a4 b5 h4 d5 c4 g5 f6 Ke6 c6 Kf5 c5 Kg4 e6 Kg3 e7 b3 e8N d3+ Ke3 d2 Kd4 g4 Ke5 b2 a5 d4 c7 d3 a6 e3 a7 e2 Na3 b1B Rh2 e1R+ Qe2 d1B Ra2 d2 Nd6 Nh6 Qe3+ Bf3 Nb7 d1B Rae2 Ba2 Na5 Nf5 Nb1 Nd4 Nh3 h6 h5 Rh1 Re1 Ne2 Nb3 Ng1 Nf2 Bd7 c8N Qe8+ Ne7 Rc8 Qe2 Ba8 Nd3 Rc6 Rh4 Ra6 Qc2 Ra4 Re4 Rg8 c6 Be6 Nc8 Bc5 Ne7 Bd4+ Kd6 Rg5 Rh2 Rc5 Rg2+ Kh3 Qd2 g3 Qa5 Rc1 Qb6 Bc8 Rge2 g2 R2e3+ Kh2 Rg3 Bab7 a8N Bh3 Nc7 Ba8 Rg7 Nf3 Ne6 g1Q Rg8 Qg7 Nf8 Ng1 Nd5 Qh7 Rg6 Qa7 Ne7
2R5/Rp1R4/B1PqNRpb/PPN1bP2/n3Rn1b/3p2k1/1r1r4/4bK1b b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 d4 c5 dxc5 Qb6 Bd3 Qc7 Bf1 Qd8 b4 a5 Qd2 Rh6 Ba6 Rh3 b5 Rh8 Qb4 axb4 a4 Qa5 Bb2 Qd8 Ba3 bxa3 h4 Kf7 f4 Kf6 c4 d5 h5 e5 h6 g6 c6 d4 h7 g3 c7 g2 c5 e4 c6 a2 a5 e3 Rh4 e2 Rh3 Be6 c8R Qd6 Rh2 Ne7 Rh4 Nd5 Rh5 Nd7 Rb8 Bh6 Nd2 Nc5 Nh3 g1B Rc8 Na4 Rd1 a1B Ng5 d3 Nb3 Be5 Nc5 Bg8 Nge6 Bf2+ Kd2 Bh4 Re1 Bf7 Rg5 Rf8 h8R Re8 Rg4 Bg8 Rf1 e1B+ Kd1 Rb8 Rh7 Rf8 Rd7 Ra8 Rcc7 Rae8 Rc8 Ba1 Nd4 Re4 Ra8 Rfe8 Ra7 Bef2 Re1 Ndb6 Kd2 Bd5 Kd1 R4e7 Kd2 Bh1 Re6+ Kf7 f6 Nd5 Re1 Bfg3 Rd8 Re2+ Kd1 Rf2 f5 Ree2 Rc8 Bc3 Rf4 Rb2 Re2 Bd2 Rg4 Bdf4 Ke1 Rg2+ Kf1 Be1 Re3 Rgd2 Re6 Qd7 Rd6 Be5 Re4 Nf4 Nde6 Qe7 Rdd8 Qd6 Nf8 Kg8 f7+ Kg7 Rd7 Kf6 Kg1 Kg5 Kf1 Kg4 Nfe6 Kh3 f8R Kg3 Rf6
1B1B3B/n4R1P/3P2p1/5B1q/bN1nP1B1/1prp2bN/6Pq/2k1bKnn b - - 0 1 illegal: No proof kernel
Nq1rn2b/4pN2/3RPp1b/b3RP1r/1BbPk2n/4N2q/P5qb/K1NN4 b - - 0 1 legal: proof: f4 a5 g4 g5 b4 d5 bxa5 h6 c4 dxc4 f5 Qd4 Bh3 Qd6 Qc2 Qd8 Qe4 h5 Qf4 gxf4 g5 Qd6 Bg4 hxg4 Nf3 Qd4 Ng1 Qd8 Kd1 Kd7 Kc2 Kc6 Kb2 Kd5 d4 c5 h4 b5 a6 g3 e3 g2 g6 b4 a7 c3+ Kb3 c4+ Kc2 b3+ Kd1 f3 h5 c2+ Kd2 f2 Kc3 f1Q Kb2 c3+ Ka3 b2 h6 Ba6 g7 Nc6 h7 Qb8 Rh5 Bc4 Rg5 Ke4 Ne2 g1B Rh5 Bh2 Rh6 Qh3 Bd2 c1B Rd6 c2 Bb4 Nf6 g8N Bg7 Nh6 Ne8 Ng4 Bd2 Nc1 f6 Nc3+ Kf3 e4 b1Q e5 Qb2+ Ka4 Bdh6 e6 Ne5 Ne3 Ng6 Rb1 Nh4 Ncd1 Ke4 Ra1 Qc3 Rb1 Qd2 Ka3 Qf2 Kb2 Qfg2 Nb3 c1B+ Ka1 Bd2 Nc1 Bc3+ Rb2 Be1 Re2 Bd2 Ba3 Ba5 Bb4 Qb6 Re1 Rd8 a8N Qb8 Re2 Rg8 Re1 Bh8 Re2 Rg5 Re1 B8g7 h8N Rh5 Nf7 Bh8 Nc2+ Kf3 Re5 Kf4 Nce3 Kf3 Red5 Ke4 Re5+
K2k3q/R1p2p2/1PPq4/N2RB2N/rn1b3P/1p1Np1nr/4P2N/1r1b1b1N b - - 0 1 illegal: No proof kernel
R2N3b/2p3r1/K1N2NB1/1P1q3p/npP3NP/p3P1Rp/n1qN2b1/2r1k1q1 b - - 0 1 illegal: No proof kernel
3B1r2/pNK1BBBp/p1n1r1bB/3p1p1n/4b2p/P1n2Pk1/3P2NP/2qR4 b - - 0 6 illegal: Other
R1K4B/2n2qP1/1Pp5/1kP1PN2/Nq1q2b1/N2nR1b1/1q3NbR/q7 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 f6 dxe5 f5 e4 fxe4 b4 a5 b6 Qg5 b5 Nc6 Qd4 Qd8 Qb4 axb4 Bc4 Nb8 Bd5 Ba6 Ba2 Bc8 f4 h5 g4 g5 h4 b3 f5 bxa2 Kd2 Ra3 Ke1 Rf3 f6 Rf5 gxf5 g4 Kd1 Rh7 Kd2 Rg7 Ke1 Rg5 hxg5 Be7 Kf1 Bc5 Ke1 Bf8 Ke2 d5 Ke3 Kd7 Kd4 e3 c4 h4 f7 h3 f6 e2 g6 e1Q b7 h2 b6 Kc6 c5 g3 Bg5 g2 Nh3 g1Q+ Nf2 Bg4 Na3 Nh6 Rb1 Qd7 Rb3 Be7 f8R Qg2 f7 Na6 Ra8 a1Q+ Rc3 Bd8 f8N Qf7 Bf6 Qeb1 Bh8 Bh4 g7 Bg3 Ne6 Qb4+ Nc4 Kb5 b8N c6 Nd7 Bf5 Nf6 Bg4 N6e4 Nc7 Kd3 d4 Rb3 Qh3 Rc3 Qh4 Rca3 Qbb2 Nc3+ Kb4 Ke4 d3 Nd4 d2 Nf5 d1Q Na4 Kb5 Re3 Qdb3 Rg1 h1B+ Rg2 Qb4 Rc8 Qd8 Ra8 Bh4 Kf4 Qd3 Rh2 Bg2 Rhh3 Qdd2 Rh2 Bg3+ Kg5 Qg8 Kf6 Qdd4 Ke7 Qgd5 Rd8 Qg8 Rd7 Qf7+ Kd8 Bh5 Kc8 Ng4 Nd3 Nf2 Rd8 Bg4 Rf8 Nh3 Nf2 Nf4 Na3+ Ka5 Kb7 Nd3 Rb8 Qae1 Kc8 Qea1 Nc2 Ka6 Ra8+ Kb5 Na3+
2b1N1R1/1R3RN1/1qP3n1/8/b1r3q1/1kn1bPPN/n5qP/Nqb1K1Q1 b - - 0 1 legal: proof: d4 a5 b4 c5 e4 f5 exf5 cxd4 a4 b5 axb5 a4 Qf3 Ra7 Qd1 Ra5 bxa5 g5 f3 g4 Be3 g3 Bf2 Ba6 Bd3 Bb7 Bf1 Bc8 Nc3 gxf2+ Kd2 h5 g3 h4 Bg2 h3 Nb1 hxg2 c4 Kf7 c5 f1Q c6 d5 a6 e5 f6 Ke6 f7 e4 b6 a3 b7 a2 a7 d3 a8R e3+ Kc1 d4 Ra3 Kd5 Rb3 Kc4 Rb2 e2 Kd2 e1Q+ Kc1 d2+ Kc2 Qe6 Nc3 Rh4 Rbb1 Qb6 Qe1 d1N Kd2 d3 Nce2 Qg4 Nd4 Na6 b8N Ne7 Nc2 Nc3 Nh3 g1B Nd7 Nb4 Nf6 Ng6 Ne8 Bh6+ Qe3 Bf2 f8N Qg2 Ne6 Bg5 Rbe1 Kb3 N6g7 Bh6 Rad1 a1Q Re2 Bg1 Ke1 Nba2 Qc5 Qc1 Re7 Bge3 Rf7 Qb1 Rf1 Bc1 Qg1 Bhe3 Rf2 Qg5 Rfd2 Rc4 Re2 Qg4 Rdd2 Bg5 Ree7 Be3 Rb7 Qh1 Re2 d2+ Kf1 d1B Ke1 Qg2 Rd2 Rb4 Rd5 Rf4 Rh5 Rd4 Rh8 Rc4 Rg8 Kb2 Na3 Ba4 Nc2 Kb3 Na1+
r2N1R2/Rb1p1q2/b6r/1Nb1PNB1/2n4q/nKb3PP/3RPk2/4q1R1 b - - 0 1 legal: proof: d4 a5 b4 b5 f4 e5 fxe5 c5 a4 cxd4 axb5 Ra6 Qd2 Ra7 Qd1 Ra8 bxa5 g5 g3 h5 Qd3 h4 Qf5 h3 Bg2 hxg2 Qf4 gxf4 Kd1 Ke7 c4 Ke6 Kc2 Kf5 h3 Ke4 b6 f5 b7 d3+ Kb3 f3 c5 f4 a6 d2 a7 Ke3 c6 f2 c7 f1Q Ra4 f3 Rh2 f2 Rh4 Na6 b8R Bb4 Rb6 Nh6 Kc4 Nf7 Rf4 Bc3 Kb3 Qh4 Nf3 g1B Rd6 Nb4 Na3 Nc2 Nb5 Na3 Nfd4 Ba6 c8N Rh6 Rg2 Qe1 Rd5 f1Q Nc6 Nd6 Nd8 Ndc4 Rf8 Qf7 Ncd6 Bf2 Rg1 Bb7 Rh1 Bg1 Nf5+ Kf2 Ka2 d1B Bg5 Bc2 Rd2 Bd3 Kb3 Rb8 a8R Rc8 Ra4 Ra8 Ne7 Kg2 Nf5 Bc5 Ra6 Kf2 Ra7 Ba6 Ne3 Be4 Nf5 Beb7 Rg1
b1BR4/b2Kb1Pq/2P3k1/1pqPr1b1/1Bnq1PR1/1qr2BB1/2R4Q/6n1 b - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 c5 b4 f5 exf5 axb4 Qf3 c4 Qg4 Bh6 Qd1 Bf8 Ne2 d6 Nd4 d5 Nb3 Nd7 Na3 cxb3 c4 Nb8 c5 Qb6 Nc4 dxc4 Ba3 Qa5 Bc1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 h5 a4 b5 g4 c3 d4 b2 f6 b1Q+ Qc2 h4 c6 b3 f3 b2 a5 h3 a6 h2 a7 Rh3 Bd2 Ne7 Bc4+ Nd5 Rc1 h1Q Be2 Bb7 Kf5 e4 Qb3 c2 Ra5 e3 Ra4 Be7 Be1 Qg1 Qa2 Nd7 Bg3 Nb6 f4 Nc4 Bf3 e2 Ra3 e1B Rd3 Rc8 a8B Nc3 Rd2 Ne2 g6+ Kf8 f7 Kg7 Rcd1 c1B+ Rc2 Be3 Ke6 Kh6 g7 Kg6 f8B Qb6 d5 Qd4 g5 Re8 Rdc1 Qf2 Rd1 Ng1 Kd7 Ba5 Rd3 Bad8 Ra3 Qbd1 Ra6 b1Q g8R+ Qg7 Ra3 Qd4 Rac3 Qb3 Qb2 Kf5 g6 Qh7 g7 Kg6 Qa2 Bg5 Bb4 Re5 Qb2 Bde7 Rd8 Qc5 Rd3 Qd2 Rdc3 Qdd4 Rg2 Ba6 Bb7 Bf2 Bc8 Bb7 Qd2 Ba8 Rc2 Be3 Be1 Bf2 Rg4 Be3 Qh2 Bf2 Bh1 Rc3 Bf3 Qd2 Ke8 Qd6 Ba5 Ba7 Bb4 Qd4 Bg3 Q6c5 Kd7
b7/1R1N1P2/1P1KR3/qQ3rqp/1p4Nk/n1PR3n/1q3r1P/NqbNn3 b - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 c5 e6 f6 e7 Kf7 a4 cxb4 axb5 Qa5 Qd3 Qb6 Qd1 Qd8 e4 Ba6 f4 Qb6 e5 Bc8 e6+ Kg6 Bb2 Qd8 Be5 fxe5 f5+ Kg5 f6 g6 Bd3 Kh6 Bf5 gxf5 Ne2 Kh5 Ng1+ Kg6 Kd2 Kg5 Kd3 a5 Kc4 d5+ Kc5 h5 g4 f4 b6 e4 c3 a4 Na3 e3 Qb1 e2 Qe4 e1N Ne2 d4 Rb1 d3 Ng3 d2 Nc4 d1Q Rb3 a3 Qe3 a2 Ne2 a1Q Nb2 Ra2 Nc1 Kh4 g5 f3 g6 f2 g7 f1Q Ra3 Nc6 Qe5 Qc2 Nb3 Nh6 g8N Ng4 Nd1 Bh6 e8N Na7 e7 Bc1 Nh6 Nf2 Ng4 Nb5 Ra7 Nh3 Rb7 Na3 f7 Rh6 Rg1 Qcb2 Rg3 Rf6 Rd3 Rf5 Nef6 Bd7 e8R Bc6 Nd7 Qg5 Kd6 Be4 Rbb8 Ba8 Rb7 Qab1 Na1 Qfg2 Re6 Qd5+ Kc7 Qa5 Qe2 Qb3 Qf1 Raf2 Kd6 Q3b2 Qe2 Bf4+ Qe5 Bc1 Qb5
r1n1nr2/r1b2PR1/1pq2RRq/2N1Q3/NP1Pq3/P1p5/1R1pN1n1/3K1k2 b - - 0 1 legal: proof: g4 h5 gxh5 a5 d4 e5 b3 exd4 Bh3 d3 Kf1 d2 Kg2 a4 Bb2 a3 Kg3 axb2 Bf1 Nh6 Kg2 Ng8 e4 d5 e5 f5 Qf3 d1N Qc3 d4 Bd3 Be6 Qd2 Bc4 Be4 fxe4 Qc1 d3 Kf1 d2+ Kg2 Bd3 cxd3 Ra3 Kf1 Ra8 Ke2 Kf7 f4 Ke6 h4 Kf5 a3 Kg4 e6 Kg3 h6 Kg2 b4 g5 d4 c5 e7 g4 e8R b6 h5 e3 h7 c4 f5 g3 f6 Nd7 f7 Qc7 h6 Qc6 Rh5 Ndf6 Nc3 b1Q Ra2 Ne7 Na4 c3 Rg5 Nc8 Rb2 Qbe4 Rg6 Bd6 Re6 Ne8 Ref6 Rf8 h8N Bc7 h7 Ra7 Rg7 Qf4 Ng6 Qh6 Kd3 e2 Kc2 e1R Nf4+ Kf1 h8R g2 Nge2 g1Q Rhg8 Qg4 Ne6+ Qgf4 Nec5 Ne3+ Kb1 Ng2 Kc2 Qff3 Qa1 Ra8 Qa2 Qff4 Qe6 Ra7 Qe5 Qff3 Nf4 Re3 Rgg6 Qfe4+ Kd1 Rg3 R8g7 Rg5 Qe7 Rd5 Qe5 Ra8 Na6 Ra5 N6c5 R5a7 Ne2+
1k3rN1/1rN1qp2/PN2p1Pq/2N1P3/1p1q3R/p3P3/1nB1b2r/3RK1bR b - - 0 1 legal: proof: h4 a5 e4 d5 a4 g5 b4 gxh4 c4 Na6 b5 Nb4 cxd5 Nc2+ Ke2 Nd4+ Ke1 Nf5 Ba3 Ne3 fxe3 b6 Bb4 Qd7 Qc2 Qd6 Qa2 axb4 a5 Qd7 a6 Qd8 Qa5 bxa5 d4 Kd7 g4 c5 b6 h5 g5 h3 d6 a4 g6 c4 b7 h4 b8R c3 d5 c2 Bc4 c1R+ Kd2 h2 Ra3 h3 Ne2 Nh6 Nf4 Nf5 Rd1 h1Q Nh5 h2 Bb3 Rc7 Nc3 Rb7 Raa1 a3 Na4 Qg1 Ke2 h1Q Bc2 Qg5 e5 Bh6 Kf2 Qg4 Rab1 Bf4 Rbc1 Qhh3 Ke1 Bh2 Ra1 Qf8 Nf6+ Kd8 d7 Kc7 d8N Nd6 Nb6 Qd4 Rac1 Bg1 Ng8 Bg4 Rb1 Be2 Rbc1 Rba7 Nb7 Qhh6 Nc5 Nc4 Rb1 Rb7 d6+ Kc6 d7 Kc7 Re8 Nb2 d8N Rc8 Nde6+ Kb8 Nc7 e6 Rd8 Qe7 Rd7 Rf8 Rbc1 Qe4 R1d4 Qd5 Rh4 Qd4 Rd1 Qhf4 Rh1 Rh2 Rd5 Qh6 Rd6 Qc4 R6d4 Qd5 Rg4 Qd4 Rh4
2q5/2Pn2k1/R2Pp1pB/1b4BR/1p6/bb1p2nK/pPRRP1Bb/Q2q4 b - - 0 1 illegal: No possible last move
1b6/Pp1BRkr1/RP2r1r1/1b1p1K2/b4R1q/2qPqNN1/R3P2n/4r1nN b - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 a5 b4 e5 c3 exf4 b5 a4 Qb3 axb3 Ba3 b2 Bb4 cxb4 Kf2 d5 Kf3 g5 h4 f5 a4 b3 d3 g4+ Kg2 g3 Kf3 g2 c4 Rh6 b6 Nd7 c5 Ngf6 a5 Kf7 c6 Bd6 a6 Rg6 a7 Ne5+ Kf2 f3 Ke3 f2 Kf4 Bd7 c7 Nfg4 c8N Bb5 h6 Nh2 h5 Bb8 Nd2 b1Q h7 b2 h8R Qc1 h6 b1B h7 Bc2 Re8 Bca4 h8R Qc3 Nh3 g1Q Nf3 Qe7 Bg2 f1R Nf2 Re1 Bh3 Qh4+ Bg4 Re6 Ra2 Rg6 Nd2 Nef3+ Nd6+ Kg7 Rhf8 Qgg3+ Ke3 Ng1+ Nf3 Qge5+ Nde4 Qee7 Rh8 Kf7 Rh6 Rg7 Rd6 Qe6 Kf4 Qee7 Ng3 Qe6 Nd4 Qeh6+ Ke5 f4 Bd7 f3 Kf5 Qe3 Rde6 Rg6 Re4 Re6 Rf4 Rg6 Nh3 f2 Nf3 f1R Nf2 Be5 Rg8 Re8 Rh8 Ree6 Re8 Nh3 Rg1 Bb8 Nfh1 Rf2 Rf1 Rg2 Rg1 Rb1 Rc1 Ng1 Rcc2 Re1 Ra3 Bb3 Ra6 B3a4 Ra2 Rg7 Nh5 R2g4 N5g3 R4g6 Re7+
nkn2R2/p1p1rbr1/p1P1q1NR/2p2NnP/5p1b/P2RBb2/P2KN3/4N3 b - - 0 1 illegal: No proof kernel
B3bRq1/P7/3r2QP/nRn5/nP1n1BQ1/2kPR1K1/1r3n2/r2R1r1r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 d5 g4 h5 Nc3 hxg4 Ne4 d4 Nc5 a4 Nb3 d3 cxd3 Rh4 Nc5 Rh3 Nb3 Rh8 a3 axb3 Qc2 b5 Qd1 c5 Ne2 e6 Nc3 c4 Na4 c3 Nb2 c2 a4 Be7 a5 Bf6 Na4 Bc3 dxc3 bxa4 f4 Ke7 Kf2 Kf6 h4 g5 c4 g3+ Kg2 g4 h5 a3 a6 e5 c5 b2 a7 b1N c6 a2 c7 e4 Rg1 e3 Qf3 e2 Rh1 e1N+ Kg1 g2 Kf2 g1R Qe2 g3+ Ke3 g2 Kf2 Na6 Bd2 c1N Kg3 Nf3 Qe4 Nd4 Be1 Nc5 Qe8 Nh6 Qg8 Ng4 Bd2 Nc3 Rh3 Bd7 c8Q N1b3 Rd1 a1R h6 Nf2 Be2 Rf1 Bf3 g1R+ Bg2 Be8 Qg6+ Ke7 f6+ Kd6 f5 Ke5 f7 Rf8 f6 N3a4 Qd7 Na5 Qdg4 Rh1 Bd5 Rb8 Ba8 Rb6 Be3 Rg8 f8R Rd6 f7 Rg7 Rh8 Qg5 f8R Rc7 Qh7 Qg8 Qhg6 Rf7 Rh7 Rf4 Rc7 Re4 Bg5 Re2 Rb7 Rb2 Bc1 Nb5 Bf4+ Kd4 Rb8 Kc3 Rb6 Nd4 Rb5 Ncb3 Kg2 Nbc5 Re3 Nc2 Kf3 Nd4+ Kg3
n3B1R1/P1qP4/p2q1b1b/bb1P1nR1/3q1Q2/QPB3Rn/2q5/1k2R2K b - - 0 1 legal: proof: f4 e5 c4 exf4 b3 d5 cxd5 a5 Ba3 a4 Bc1 a3 Nc3 Ne7 Na4 Qd7 Nb2 axb2 a4 Qf5 a5 Qh5 a6 Ng8 a7 Qg5 Nf3 Qg6 Nd4 Qd6 Nc2 Qd8 g4 f5 h3 h5 Ra5 g5 Ra3 f3 Nb4 f4 Na6 bxa6 Ra1 Rh6 Qc2 Nc6 Qd1 Rf6 h4 Rf5 gxf5 g4 Ra3 Rb8 Ra1 Rb6 Rb1 Nce7 Ra1 Rg6 Rg1 Rg7 Rh1 Rg5 hxg5 Nc6 Kf2 Kf7 Kg1 b1Q e4 h4 d4 g3 f6 Kg6 e5 Kf5 g6 Ke4 d6 h3 d5 g2 g7 f2+ Kh2 f3 f7 g1B+ Kg3 h2 e6 Nh6 g8Q Nd4 e7 c5 e8R+ Ne6 Qg7 c4 Qh7+ Nf5+ Kh3 c3 Ra5 c2 Qh8 Bd7 Bh6 c1B Be2 f1Q+ Kg4 f2 Bg5 Bb5 d7 Qc7 Rb8 Qbc2 Qf6 Bb4 Ra2 Ba5 f8R Bf4 Qda1 Qfd1 Kh3 Qd4 Bg4 Kd3 Kg2 Be5 Qf7 Bf6 Bh5 Qd6 Bh6 Nc7 Bg7 Na8 Rg8 Qcc7 Ra4 Kc2 Qa3 Kb1 Bh8 Qc2 Rg5 Qcc7 Rbg8 Qc2 Qf8 Qcc7 Be8 Qc2 Kh3 f1Q+ Rg2 Qfc1 R2g5 Qcc7 Kg2 Be3 Re1 h1N Rc4 Nf2 Rc3 Bf4 Rcg3 Nh3 Kh1 Qcd1 Qh6 Bc1 Qh4 Qdc2 Qf4 Bd8 R5g4 Qe3 Bc3 Qd4 Qe3 Bf6 R4g6 Qcd1 Qe5 Bcg5 Qf4 Bh6 R6g5 Qc1 Kh2 Qcd1 Re7 Q1d2+ Kh1 Qc2 Re1+
b2QR1QN/pR1pb3/1R2n1np/8/5r2/3Prn1K/PR1P1P2/1b1Nk1b1 b - - 0 1 legal: proof: h4 f5 b4 c5 bxc5 g5 e4 gxh4 exf5 Qb6 Ba3 Qb3 Bc1 Qd3 cxd3 Bg7 Nc3 Bh6 Nb1 Bf8 Nc3 e5 Be2 b5 Nb1 e4 Rh2 e3 Qa4 b4 Qc2 b3 Rh1 b2 Bf3 e2 Qc3 bxc1B Bb7 Bb2 Qc1 Bd4 Na3 Bh6 Rb1 Ba1 Rb2 Ke7 Nb1 Bf8 Bc6 Ke8 Ba4 Ba6 Bd1 exd1B Nf3 Bb7 Ng1 Bc8 Kf1 Kf7 g4 Kf6 Kg2 Ke5 g5 Kf4 g6 h6 f6 h3+ Kh2 Bc2 c6 Bb7 g7 Na6 c7 Be7 c8R Nc5 f7 Ne6 Rb6 Be5 Rc5 Re8 Ra6 Ba8 Nc3 Bb1 Nge2+ Kf3+ Nf4 Bb8 Kg1 h2+ Kf1 Bc7 f8R Rh7 Rg1 h1N Rb6 Bb8 Rg6 Ng3+ Kg1 Be5 Kh2 Nf5 Rb2 Nh4 Nd1 Bc7 Kh3 Bcd6 Nh5+ Ke2 Nf4+ Ke1 Rc7 Nf3 Rcb7 Bc7 Rgf6 Bb8 Ng6 Bh2 Qc7 Bg1 Rf5 Rh8 Rfb5 Rh7 R5b6 Rh8 Rf4 Rf8 Rg4 Rf4 Qd8 Bf8 Rg2 Ned4 Qe8+ Ne7 Rg5 Rh7 g8Q Rhf7 Ne5 Ng6 Qd8 Re7 Nf7 Re3 Re5 Bc5 Re7 Ne6 Re8 Be7 Nh8
KbQN1NqQ/1np2Pqr/2b1q2R/6Pr/7r/1PR1b3/3Q3P/1Q3kbn b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Bb7 b3 Bc8 Bh3 Bb7 Bb2 Bc8 f5 h6 Be5 h5 Bf4 gxf4 g5 Nh6 Bg4 hxg4 Ra4 Ng8 Ra3 Rh6 Ra1 Rh8 Ke2 Kd7 d4 Kd6 f6 e5 f7 a5 b6 e3 Kd3 f3 Kc4 g3 Kb5 g2 b7 f2 Qf3 f1R Qf2 a4 Qc2 e2 Qa2 e1B Na3 e4 Qb2 e3 Ne2 g1B Qd2 Na6 b8Q Nc5 Qc1 Nf6 Qd2 Nfe4 Qa2 Nb7 Rb1 Bef2 Nc2 a3 Qb2 a2 Rd1 a1Q Qb1 Rh5 Nb4 Bd7+ Nc6 Ng3 Nf4 e2 Ng6 e1Q Qc8 Be3 Rd3 Rf4 Rc3 Bg7 Nf8 Bh8 Ng6 Rfh4 Nf8 Bgf2 Rg1 Nh1 Rf1 Bg1 Rf3 Rh7 Rh3 R4h5 Rh4 Ra4 Rh3 Rc4 Rh4 Qb2 Ka6 Qe8 Nd8 Bc6 Ka7 Rb4 Nfe6 Qg8 Nf8 Be5 Ka8 Bg3 Qcf5 Bg3f2 Qfc2 Qe2 Qd2 Rc4 Rf4 Qg4 Rf6+ Qe6 Rh6 Qc2 Qbc1 Qcg6 Qb1 Q6g7 Ng6 Kd7 d6 Rb4 d5 Rbh4 Ne7 Ba7 Ng6 Bb8 Nf8+ Kc8 Re3 Qd4 Rc3 Qee4 Nde6 Be3 Rf6 Qf5 Rh6 Qfg6 Ng7 Kd8 d7 Ke7 Nge6 Kd6 d8Q+ Ke5 d6 Qc4 Rc2 Ke4 Qc8 Kf3 Rc3 Qf6 Qd4 Kg2 d7 Qfg6 Qh8 Q6g7 d8Q Qg4 Qd6 Kf2 Nd8 Qe6 Qb2+ Ke1 Qdd2+ Kf1 Qb1#
2n2K2/r1qr1R2/P1P1bb2/1PQB2nP/QQ2kB1q/Q3p3/3p1rR1/4qn2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 c5 gxh5 Na6 d4 cxd4 b5 Nb8 a4 b6 Nc3 Bb7 Nd5 Bc8 Nb4 Rh7 Nf3 Rh8 Nd2 Nf6 Nc4 axb4 a5 Ng8 a6 Rh7 Na5 bxa5 Be2 Rh6 Bf1 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 f4 b3 c4 g4 h4 b2 h6 b1N h7 g3 h5 g2 c5 g1Q c6 a4 Rh4 d3 Qe2 a3 Ra2 e4 Rh3 e3 Rc2 a2 Rc3 a1Q Rc2 d2 Qd3 d1R Re2 Qh1+ Rf3 Ne7+ Kd6 Ra7 Ba3 Qh4 Qd5 Bg7 Rg2 Nd2 Bc4 Rf8 h8Q Nf1 Qg8 Bh8 Qg4 Rd4 Rff2 Qe1 Qd1 Rd2 Qa4 Rf7 Rf3 Rf2 Qc5 Qb6 Bb4 Qd8 Ba5 Bg7 Bc7 Bh8 Qcb4 Rh7 Kc5 d5 Qba3 Nd7+ Kd6 d4 Bb8 d3 Q3b4 Ng3 Qba3 Kg7 f6+ Kh6 f5 Kg5 f7 d2 f8Q Bf6 Q3b4 Qa5 Qc5 Ne5 Bc7 Be6 Qcb4 Bh8 f6 Rf7 Rf4 Nf3 Bb8 Rh7 f7 Bf6 Rf5+ Kg4 Bc7 Ng5 Qc5 Nd5 Qe7 Nb6 f8Q Bf7 Qcb4 Nc8+ Kd7 Rg7 Qec5 Be6+ Ke8 Rd7 Bf4 Kf3 Qfd6 Nf1 Kf8 Qc7 Qe7 Bd4 Rf7 Ke4 Qed6 Bf6 Qd3+ Kf3 Qda3 Ke4 Bd5+
5b1K/qQr1b2P/4r2k/3pPq1n/Q4p1N/1Q2P2P/bBN1b3/n1bQ3B b - - 0 1 legal: proof: b4 e5 d4 a5 f4 axb4 fxe5 h5 a4 h4 d5 c6 d6 h3 Ra2 Rh6 gxh3 Qc7 h4 Qd8 h5 Rh8 c4 Ne7 c5 Ng6 h3 Ne7 Rd2 Ng8 Rd5 Qf6 Rh2 Qg5 Rf2 Qd8 Rf4 Be7 Rc4 cxd5 c6 Bf8 c7 Qe7 Rc5 Qd8 Rc6 dxc6 Kd2 f5 Kd3 Kf7 Kd4 g5 h6 Kg6 h7 b5 d7 c5+ Kd3 b3 a5 f4 a6 c4+ Kd4 b2 a7 c3 Nf3 g4 Nh4+ Kh6 Qc2 b4 Ng6 b3 Qf5 g3 Ne7 c2 Qf7 g2 Ng6 Qe7 d8Q Ba6 c8Q Nd7 Qe6 Ngf6 Qdb6 Nc5 Na3 b1Q Bb2 c1B Nh4 Qf5 Qcb7 Re8 a8Q g1B+ e3 Bf2 Qaa7 Be2 Bg2 Qf7 Qec6 Re6 Nc2 Nh5 Qa1 Be1 Qe8 Bb4 Qea4 Be7 Bh1 Rc8 Qbb5 Rc7 Qd3 Ba3 Qa2 Qg7 Qd1 Qgf7 Bc3 b2 Q2b3 b1B Ba1 Bf8 Bb2 Na6 Qa2 Nb4 Q2b3 Rce7 Kc5 Ba2 Kd4 Qg7 Kc5 Rc7+ Kd4 Qgf6 Ne1 Rd6 Qd7 Q6g6 Qda4 Rg7 Kc5 Nc2+ Q3b4 Na1 Nc2 Qgf6 Qb3 Qd8 Qa4 Qa8 Qb3 Rd8+ Kc6 Qa7 Q4a4 Rg6+ Kc7 Rd7+ Kc8 Rdg7+ Kd8 Rc7 Ke8 Bae7 Nd4 Qf6 Nc2 Qg5 Kf7 Qg4 Qg1 Rb6 Qd1 Qf5+ Kg8 Re6 Kh8
3nQNB1/P2pnp1q/K4PnN/1n3b2/N3r1k1/P2Q3N/q4PrB/1nq5 b - - 0 1 illegal: No possible last move
1K1n1Q1r/1P3pr1/2b2Pn1/1n6/1b1QN3/bB1p1Q1Q/BP1Prb1N/k4r2 b - - 0 2 illegal: No proof kernel forced: bxDB
R1r2R2/BpPB2Q1/4pR2/R1n5/5P1b/K1pr2bn/2k1qPP1/2nbQ2r b - - 0 1 illegal: No proof kernel
Kb1Q2N1/1p2b3/1Bqp1q1p/bN1PQN1P/1N3P2/2B1n3/2nPr3/1b1kq3 b - - 0 2 illegal: No proof kernel
8/2B1pn1r/PQr1rpKB/qq1bP3/1nQNB3/1pb1kBn1/PP6/1N1b4 b - - 0 1 illegal: Other
q1B4q/3Rn1Bp/n1p1n1qQ/5k1P/P1r3R1/QbP1p2K/2b1P2R/R5rn b - - 1 3 legal: proof: f4 a5 g4 f5 d4 c6 b4 axb4 d5 g6 g5 Bg7 d6 Bd4 Nh3 Bb6 Nf2 Bc7 dxc7 Nh6 Ng4 Ng8 Nd2 fxg4 f5 Ra7 f6 Na6 Nc4 Ra8 Ne3 Nb8 Nf5 gxf5 Kf2 Kf7 Kg2 Ke6 h4 b5 g6 d5 f7 b3 f8R b2 c3 b1B g7 f4 a3 d4 h5 g3 Re8 b4 Rh4 b3 Qe1 f3+ Kh3 f2 Re4+ Kf5 Re3 e5 Qd2 g2 Re6 g1N+ Kg3 d3 Qd1 d2 Kh2 e4 Rg3 e3 Kg2 b2 Qe1 d1N Ra2 Bc2 Ra1 b1Q Rh3 Ra4 Rh4 Rc4 a4 Ne7 g8R Nh3 Rgg4 Na6 Rd6 Ng5 Ba3 Rg8 Rh2 Be6 Rd7 Qa8 c8Q Bd5+ Kg3 Ne6 Bh3 f1Q Bc5 Nf2 Qc1 Rg5 Qa3 Nh1+ Kh4 Qg1 Bd4 Qbb8 Bg7 Rg6 Qc7 Qh8 Qcd6 Qb1 Bf1 Rg5 Kh3 Rg6 Re4 Rg1 Rg4 Rd4 Bg2 Bdb3 Bd5 Rc4 Bf3 Nec5 Qh6 Ne6 Bd5 Nec5 Qc1 Bd3 Rd6 Be4 Rg5+ Kf4 Be6 Bg6 Bc8 Ne6 Rd7 Qe4 Kh4 Qg2 Qb2 Bgc2 Qa3 Qe4 Kh3 Qg6 Rg3+ Kf5 Rg4
3K1R1n/b1Qp1qRP/1r3RbP/k1b1p3/pB4n1/3B1p1b/P4PQ1/2r2nR1 b - - 0 1 illegal: No proof kernel
3rBk2/2bpRn1p/1B1PbQ1q/7P/pPq2QpB/1Rpr4/6Pb/1Bn1K3 b - - 1 3 legal: proof: c4 c5 a4 b5 e4 f5 Nf3 fxe4 Nd4 cxd4 Nc3 dxc3 axb5 Qb6 Qa4 Qa5 Qd1 Qd8 h4 a5 f4 g5 b4 e5 d4 a4 c5 g4 h5 e3 f5 e2 b6 e4 d5 Qf6 c6 Ra5 b7 Nh6 c7 Na6 b8Q Nf7 Rb1 Nc5 Be3 Qh6 f6 Nb3 Qd4 Nc1 Rb3 Bd6 Bf2 Be5 Bh4 Kf8 Qbb6 Ba6 c8B Bd3 Ba6 Bh2 Bc4 Ra6 Qe6 Rd6 Qee5 Bb1 Qf4 Ba2 Qde5 Rc6 Bd3 Rc4 Bb1 Rd4 Qeg5 Rd3 Qg6 Bg1 Rh3 Bb6 d6 Bc7 Re3 Rg8 Rb2 Be6 Rb3 Nd8 f7 Rh8 Qgf6 Rg8 Kf2 e1Q+ Kg1 Qd1 Kf2 Qd2+ Re2 Qa2 Ke1 Rh8 Bf2 Rg8 Bb6 e3 Rf2 e2 Rf3 Rh8 Re3 Bf5 Re7 Be6 Ra3 Qd5 Rb3 Qc4 Q6f5 Kg7 f8B+ Kg8 Bg7 Nf7 Bf6 Kf8 Bh4 Rg8 Qf6 Rh8 Kf2 e1B+ Kg1 Bd2 Kf2 Be3+ Ke1 Bg1 Be2 Bh2 Bf3 Rg8 Be4 Rg5 Bg6 Ra5 Q6d4 Ra8 Qdf6 Rd8 Q4g5 Qg7 Qd4 Nh6 Be8 Nf7 Qgf6 Qh6 Qdf4
n4N1b/K1P2PN1/2k1N1q1/nbN2QQ1/B7/4n1P1/2nPb1b1/rN1rb3 b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 b5 axb5 g5 b4 g4 b6 g3 b5 Nf6 Ra4 Nc6 hxg3 Nb8 g4 Ng8 g5 Ra6 Rg4 Ra7 Ra4 Ra8 c4 c5 Rh4 d6 Rb4 axb4 Ba3 b3 Bb4 Ra5 Rd4 Ra8 Rd5 cxb4 c5 Bh6 c6 Bf8 Rc5 dxc5 Ke2 e5 Ke3 h5 f4 e4 g6 h4 g3 b2 c7 Kd7 b7 c4 Kd4 c3 f6 c2 f5 c1N f7 e3 b6 b3 g7 e2 f6 e1B Nh3 Ne7 Kc5 Ra1 g8N Qe8 Be2 Nf5+ Ne7 Bg7 f8Q Qg6 f7 Ne3 Nf2 h3 Ng8 h2 Qc2 h1B Nh6 Bg2 Nf5 Rh1 Ne4 Bh8 Ng5 Rg1 Qg7 Rh1 Nc3 b1B Ne6 b2 Bd1 Nb3+ Kb5 Ba2 Nb1 Na5 Qe5 Bb3 Nfg7 Bc4+ Kc5 Bcf1 Qg5 Bb5 Qcf5 Rf1 Na3 b1N Ba4 Nc3 Nb1 Ncd5 Qgf4 Nbc6 b8N+ Ke7 b7 Ncb4 Nd7 Nb6 b8N Bca6 Q4e5 Na8 Ndf8 Be2 Nbd7 Bab5 Kd4 Rg1 Ndc5 Rh1 Qef6+ Kd6 Qd8+ Kc6 Qdg5 Nbc2+ Ke5 Kb6 Kd6 Bbd3 Kd7 Bb5+ Kc8 Kc6 Kb8 Bf2 Nh7 Rd1 Ka7 Be1 Nhf8
1bB5/P2p3B/1r3rQ1/p1Qb2pP/qN2kq2/QPP1B1Q1/K2n2qn/8 b - - 0 1 illegal: No possible last move, all moves rejected
3nQKQb/1b1PPQ2/1n3N2/pk1r2rQ/1n6/P6P/n2nRp1N/2N1q1q1 b - - 0 1 legal: proof: f4 c5 b4 e5 bxc5 d5 fxe5 Qd7 c4 Kd8 a3 Qf5 c6 Qf4 c5 Qg5 Ra2 Ke8 Rc2 Qd8 g4 g5 Rc4 dxc4 Bb2 Qd6 Bd4 Qd8 Be3 h6 Bf4 gxf4 g5 h5 Bh3 Qd5 Bf5 Qd8 Bg4 hxg4 Kf2 a5 e4 b5 d4 f5 g6 c3 d5 f3 Ke3 f4+ Kd4 c2 h3 c1N d6 b4 Kd5 g3 g7 b3 c7 Kd7 Qc2 g2 Rh2 b2 Qe2 Qe8 Qd1 Na6 Nd2 b1N Ne2 g1Q Nf1 Na2 Nc1 Nh6 g8N Nf7 Rb2 Rh7 Nh2 Rh5 Rf2 Bg7 Qf1 Qd8 Re2 Bh8 Qf2 Bb7+ c6+ Ke8 Ke6 N6b4 c8Q Nbc3 c7 Ncd5 Qh4 Nb6 Qf6 Rf5 Qb8 Rh5 c8Q Rf5 Qc3 Rg5 Qg7 Qc8+ Kf6 Qe1 e6 Rd5 e5 Kd8 e7+ Kd7 Kg6 Qc5 e6+ Kc6 d7 Kb5 Nf6 Qcf2 Qce5 Qe3 Qbf8 Q3g1+ Qg5 Rb8 e8Q Ra8 Qee7 Re8 Ng8 Nd8 Qef7 Re7 Q7e8 Rf7 e7 Rff5 Qg4 Rg5+ Kf6 f2 Qef7 f1N Qgh5 f3 Q7e8 Ne6 Kf7 f2 Nf6 Nd2 Qfg8 Nd8+ Kf8 Nc2 Qg8f7 Ncb4 Qgg8
5bb1/3NPn2/N4PP1/1Q6/q1k1pp1Q/Qnr1q2p/3Q1Pn1/1K1R1rrN b - - 0 1 illegal: No proof kernel
1nq1r1b1/2p2Pp1/qP4NQ/2b2R2/3QQ3/1kq2p1R/P1n1pPr1/2K3RQ b - - 0 1 illegal: Other
4b1B1/Q1P1Nn2/2r1B3/p1bp3k/1B1Pb1n1/P6K/BP1rb1B1/1Bqbr3 b - - 1 2 legal: proof: h4 b5 f4 c5 Kf2 g5 hxg5 e5 fxe5 b4 d4 b3 e4 c4 g4 Qb6 a3 Na6 Qd2 Qd8 Rh3 Nb8 Rd3 cxd3 Ra2 bxa2 Kg3 axb1R Qd1 Bc5 Be3 Be7 Qd2 Bf8 c4 d5 c5 a5 c6 f5 c7 Kf7 e6+ Kg6 e7 h5 e5 f4+ Kh3 f3 e6 h4 Qc2 f2 Bd2 Re1 Qc5 Nc6 Nf3 Ra6 Bb4 d2 Bg2 f1B Qa7 Nh6 e8B+ Nf7 e7 Ne5 Ba4 d1B e8B Bc5 Bb3 Bfe2 Ba2 Rc6 Bd7 Qg8 Be6 Bd7 Bf5+ Kg7 g6 Kh6 g5+ Kh5 g7 Be8 g6 Ng4 Be6 Qf8 g8B Qh6 g7 Qc1 Ne5 Rh6 Nd7 Rf6 Nb6 Rf2 Nc8 Bf1 Nb6 Rd2 Bh7 Bfe2 g8B Nfh6 Bf1 Nf7 Kg2 h3+ Kg3 h2 Bg2 Qc4 Bhb1 Qc2 Kh3 Qc1 Nc8 h1B Bf1 Bhf3 Ne7 Be4 Bg2
1K6/1P3krq/6Bq/2PnnBBp/7P/BPp1b2B/Nq2qB2/R3rbq1 b - - 0 1 illegal: No possible last move
5K1n/Nbp1n2P/qqPb3N/p3r2P/r7/B2NkP1b/1N1NB1np/4N3 b - - 0 1 illegal: No proof kernel
K3B2n/nQ1NBq2/rPR3P1/1P1b1p1b/1k3N2/1n2rr2/R1P2P2/1q1b3r b - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 d4 gxh4 e3 cxd4 Qd3 dxe3 Ra2 Qc7 Qd6 Kd8 Qh6 Qb6 Qxf8+ Kc7 Ra5 Kd6 Ra1 Qd8 Ke2 Kc5 Kf3 d5 g4 h5 g5 a5 g6 a4 b6 a3 b3 a2 Nc3 e2 Bg5 e1R Nce2 d4 Ke4 h3 Rd1 a1N Bh6 h2 Rb1 d3 Bg7 h4 Bd4+ Kb4 Qe8 e5 Qd7 h3 Kd5 e4 Rc1 e3 Bg2 d2 Bf6 d1B Nf3 Qf8 Nfg1 Ra6 Be5 Nh6 Bf4 Nc6 Qb7 Bg4 Bg5 f5 Nf4 e2 Nf3 Na7 Ne5 Bh5 Nd7 Nf7 Rb1 Rh7 Rb2 Nh8 Ra2 Qf7+ Kd6 Rh6 Kc7 Rh7 Rg1 h1B Kb8 h2 Bc6 Bd5 Rg4 h1R Ka8 Rh3 Bf6 Rf3 Rh4 Rh1 Rh3 e1Q Be7+ Kc3 b4 Nb3 b5 Re3 Nc5 Kb4 Rh4 Rhh3 Be8 Rhf3 Rh3 Bg4 Rg3 Rh2 Rh3 Rh1 Rh7 Bh5 Rg7 Qf8 Rf7 Qg8 Rf6 Qf7 Rc6 Be2 Qc8 Qb1 Qb7 Bd1 Nd7+
3q2B1/1BRq1nQ1/2b5/Pp1q1n1P/kN3q2/PPbr1RP1/b1KN4/4qn2 b - - 0 1 illegal: No possible last move, all moves rejected
k1q3Q1/2b1N2n/B4r1b/rPp3P1/1b2Rr1P/PKBp3n/1p3q1P/1R2N3 b - - 0 1 legal: proof: c4 e5 d4 exd4 b4 h5 g3 a5 b5 g5 Qb3 h4 Qa4 g4 Qb4 axb4 Kd2 b6 Ke1 Bb7 c5 bxc5 gxh4 c4 f3 g3 Kd2 Be4 Kd1 Bf5 Ke1 Bg4 fxg4 Bc5 Nd2 Be7 Nb1 Bf8 Kd2 f5 Kc2 d5 e4 Kd7 a3 Kc8 e5 Kb7 e6 b3+ Kb2 d3 e7 g2 e8Q d4 Bd2 c3+ Kc1 b2+ Kd1 f4 Be2 f3 Bh6 f2 Bg7 c2+ Kd2 f1Q Qe6 Qf2 Ra2 c1B+ Kd1 d2 Kc2 d1R Ra1 d3+ Kb3 Nf6 Ka2 Na6 Kb3 Bb4 Qe5 Qc8 Qf5 Rf1 Qf4 Nh7 Nc3 Rf8 Qg3 Rf4 Nf3 g1B Rb1 c5 Nd5 Nc7 Ne1 Ne6 Be5 Neg5 Ne7 Ra5 Bc3 Nh3 Bf3+ Ka7 Bc6 Rf6 Bg2 Bf4 Bb7 Bc7 Ba6 Ka8 Qg2+ Qf3 Qg3 Be3 Qg2 Bh6 g5 Qc6 Qd5 R1f4 Qg8 Qf3 Rg1 Qf2 Rg4 Rf3 Rd4 R3f4 Re4
1b3KB1/2rPPn1N/1R3b2/3b1p1r/rP3PR1/k1q1r1P1/1n5N/B3Qqrn b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 Qd2 dxc4 d5 Be7 Qc3 Bf8 Qd4 exd4 Kd2 Kd7 b4 a5 f4 c5 e4 f5 d6 h5 e5 h3 g3 a4 b6 Kc6 b7 Kb5 d7 d3 Ke3 h4 e6 c3 Nf3 c4 Kd4 h2 Ke5 c2 Nfd2 h3 Ra2 a3 Kd5 Ka4 Be2 c3 Nc4 d2 Rg1 d1R+ Bd3 h1N Rg2 h2 Bb2 c1Q Re2 c2 Rf2 Rg1 Bc3 Bd6 e7 Nh6 Ke6 Qc7 Kf6 Nc6 Kg7 Nf7 b8Q Rh5 Re2 Bb7 Ne5 Na5 Nf3 Qf1 Re6 c1R Nbd2 Nc4 Ng5 Bd5 Nh7 Nb2 Kf8 Rc2 Bf6 Qc3 Nf3 Rc1 Qc8 Bb8 Bc4 Re1 Qc7 Re3 Qe5 Ra7 Rb6 Rc7 Ra1 a2 Rc1 a1B Ba2 Qce1 Rcc6 Qc3 Bh8 Ka3 Rg6 Nf2 Bc4 h1R Rg4 R1h2 Qe4 Nh1 Ba2 Rc2 Nh2 Ra7 Bg7 Ra4 Qe6 Qd4 Qe4 Rc7 Qb1 Qc3 Qe1 Ba8 Be6 Bd5 Bh8 Nh6 Bg8 Nf7 Bf6 Qc5 Ke8 Nd1 Be5 Qc1 Bd6 Bf6 Be5 Qc5 Ba1 Nb2 Kf8 Qc6 Rb5 Qc3 Rb6
kQ1n2qR/3qP1rr/1BN2P2/p1Kb1P1b/2P1B2N/r3n1b1/4P1qn/1R5b b - - 0 1 illegal: Other
b1b5/q1bP1kQR/rP1n3P/n1K2pn1/P2n1N1n/5r1B/R1bb3P/B5N1 b - - 0 1 illegal: No possible last move, all moves rejected
qqn5/1p1R4/3NN1K1/qPkB3Q/P3r3/q1b2b1P/1b1PP2r/b1nBRq2 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 h5 c4 dxc4 b5 hxg4 Ba3 e5 Bb4 axb4 fxe5 Qd7 Qa4 Qe7 Qd1 Qd8 Kf2 Ke7 Kg3 g5 a4 c5 e6 Kd6 e7 f5 e8B c3 Qc1 c2 Qa3 c1Q Bd7 f4+ Kf2 c4 Qh3 f3 Ke3 b3 Ke4 c3 Kf5 b2 Ra2 f2 Kg6 g3 Qh4 g2 Bf5 g4 Qh5 g3 Bd7 c2 Na3 b1Q Be6 Qb4 Bd5 Na6 Bf7 Ne7+ Kf6 Nc5 Be8 Qba5 Kg5 Bg7 Qh7 Bc3 Bd7 Nb3 Bh3 Bg4 Qf7 Bf3 Qf6+ Kc5 Nc4 Nc8 Bf5 Qa3 Nh3 g1Q Nd6 c1B Nf4 g2 Rc2 Bb2 Kg6 Nc1 Qg5 Re8 Qh5 Re4 h3 Qh2 Qh8 g1B Bg2 f1Q Qh5 Bd4 Be6+ Be5 Ba2 Ra6 Bb3 Rc6 Rg1 Qa8 Bh1 Qda5 Bg2 Rc7 Rh1 Rf7 Ne6+ Kb6 Rg1 Ba1 Bh1 Bcb2 Rc7 Bec3 Rd7 Rf8 Ne8 Qhb8 Nd6 Rf7 Bd1 Rg7+ Kh6 Rg2 Kh7 Rh2 Kg6 Qf2 Re1 Qf1 Ng5 Bg4 Bf3 Kc5 Bg2 Rf4 Be4 Bf3 Bd5 Re4 Ne6+
1n1qR3/Kp3b2/nB2RP2/q1rPrN2/2P1bNn1/Q3b1P1/Bk1qP3/2b3n1 b - - 0 1 illegal: No proof kernel
1B2N1Nr/n3n1K1/2QP1Pb1/4RRP1/1kbPn3/3pb2n/Brn1P2b/1q5n b - - 0 1 illegal: No proof kernel
4r2b/R2P3n/Pr1NrQK1/k5pn/2PnR1N1/1q4bp/1PBB3P/3rb1r1 b - - 0 1 illegal: No proof kernel
R2R4/1b2PKbq/2p1N2r/nnPqq1BP/1p6/Pbb2BbP/4k1rN/1Q6 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 b4 axb4 gxh5 e5 Qe2 exd4 e5 Ra4 Qf3 Ra8 Qe4 fxe4 Ke2 Ke7 c4 Ke6 f4 Kf5 a3 Kg4 f5 g5 f6 b5 f7 d5 c5 b3 e6 b2 e7 d3+ Ke3 d2 Kd4 d1Q+ Ke5 e3 Nc3 b1Q Bb2 e2 Ne4 e1B Nh3 Kf3 Bg2+ Ke2 Rf1 d4 Nd2 b4 Bc3 g4 Bb7 g3 Rg1 d3 Ra2 g2 Rc2 Rh6 Bd5 Qd6+ Kd4 Nc6+ Ke4 Bg7 f8Q Bb7 Kf5 Bg3 Nf3+ d2 Qe8 Nf6 Nhg5 Na5 h3 c6 Ne6 Ne4 Qg6 Rg8 Bf6 Nc3 Nh2 Nb5 Be4 Qd4 Rf1 g1B Bg5 Qd6 Rc3 B1d4 Rd3 Bc3 Rf4 Qc7 Rd8 Qh1 Rf3 d1B Ra8 Bb3 Rd3 Qhd1 Rdd8 Qdd6 Qf6 Qd5+ Qe5 Rh7 Kg6 Rh6+ Kf7 Qbd3 Qf4 Qce5 Qc1 Qc2 Bh1 Qh7 Be4 Bf8+ Ke8 Rgg6 Qb1 Bg7 Kf7 Bf2 Bd2 Rg2 Bg5 Bg3 Bf3+
1Q1NB1n1/2r1bpb1/3RP2P/3bNq1p/2rbq1P1/2BP2Kn/2P1q3/4n1kR b - - 0 1 illegal: No proof kernel
B1Q3q1/Rp1n1r2/NB3Pbq/K2bp1P1/1N1P4/1qR1P3/1r1rkP2/1nn3r1 b - - 0 1 illegal: Other
K2n1br1/pB3P1N/3b1qqq/1r3P1k/QP2n1R1/5PR1/bb2p2P/1N3nB1 b - - 0 1 illegal: Other
1K1n2Nq/1bQ1r2P/q3q2r/2PBRb1P/1b1Rp1P1/4Pn1p/1k3b2/3q1B1N b - - 0 1 illegal: Other
5B1K/1N2b3/Nk2n1qP/bQR2bp1/2nrP1B1/P5Pp/2n1nPn1/q4nR1 b - - 0 1 illegal: No proof kernel
1K1n3q/N1p1nbN1/2Q1R1PB/2p4P/1k2Rbq1/4nP1n/B1Prnq1P/7n b - - 0 1 illegal: Other
b7/R4r1P/q4N1P/2p1pqQn/2P1r1P1/Pqq1RB1K/2rb1b1N/1k3rB1 b - - 0 1 illegal: Other
8/nr2p3/PP1nr3/3PP2B/p1pR1n2/b1K1P2k/rRNB1Qb1/q1n1N1b1 b - - 0 1 illegal: No proof kernel
5r2/2b3pK/2Nq1pP1/2Bn1b2/P3B1PR/r2QRbP1/Pp1r1k1r/4qN1n b - - 0 1 illegal: Other
q2BN1bn/P3pb2/r2q1Q2/3R4/1Pqk1b2/1n1PpK1B/bP1pP3/1R1N2r1 b - - 0 1 illegal: No possible last move, all moves rejected
1n5k/BQ1r4/n1p3pR/5bq1/rP1p1P2/PN1P1p1n/PbR1BN2/b2Kb3 b - - 0 1 illegal: Other
1N2RB1K/npbn2n1/PP3r2/7P/1pq1N1k1/1B3QP1/1Pb1pp2/bR3n1r b - - 0 1 illegal: No proof kernel
Q1b3q1/1R1P3n/6pK/p2p2r1/1P2n1Rn/1P1PrNq1/P2Np2b/3nkBB1 b - - 0 1 illegal: Other
3Nq1Qq/pqPb1p1B/1nq1P3/1R1rp2P/P2q4/b3BP2/K2Np2R/3k2n1 b - - 1 2 legal: proof: e4 d5 g4 e5 d4 b5 b4 h5 Na3 hxg4 Nb1 Na6 Bb2 Rb8 Ba3 Rb6 Bc1 dxe4 d5 Re6 dxe6 c5 Qd4 cxb4 Qd2 Rh5 Qd1 Rh8 a4 Ke7 c4 Kf6 h4 Kf5 c5 g5 c6 e3 c7 Kf4 f3 b3 h5 b2 Rh3 g3 Nd2 b1Q Qc2 e2 Qg6 Ke3 Qh7 g2 Qg6 b4 Rg3 g4 Rh3 b3 Qh7 b2 Qg6 g3 Qg7 Qc2 Rh1 b1Q Nh3 g1Q Rh2 g2 Ng5 Nb4 Nge4 Nf6 Nd6 Nh7 Nb7 Ng5 Ne4+ Kd3 Nc3 Nd5 Nd1 Qc6 Ne3 Nh3 Qg3 Ba3 Nc4 Kc2 Qg4 Qb2 Rb1 Qgd4 Be3 g1Q Qg5 Re8 Qg8 Qg7 Bg2 Qbb6 Rb5 Ng1 Bh3 Qh8 Bg4 Re7 Bh3 Qde8 Nd8 Rd7 Bf5+ Qe4 Bg6 Qbb7 Bh7 Nb6 Rd5 Kb1 Kd2 Rd6 Kc3 Bd7 Rc5 Rd5 Nd2+ Kc1 Kb3+ Kd1 Ka2 Qd4 Rb5
4bQn1/PpP1PNBn/5Rpp/1q1B2n1/N3P1b1/1nKbrpkR/6Pb/8 b - - 0 1 illegal: No proof kernel
Qb1n1R2/5Prk/2P1pB1P/1p4R1/rp3P1K/2qPrp1b/1Np1Bn2/4q1N1 b - - 0 1 illegal: No proof kernel
2NK1R1Q/P1pP2Pb/3nBp1p/pqr4k/5P1b/5ppr/4P1NR/nB4n1 b - - 0 1 illegal: No proof kernel
q7/2b1nPpr/q4n1B/p1Pb4/1p2kR2/B3N1P1/Np1ppP1P/1rQ1R2K b - - 0 1 illegal: No proof kernel
br2n1nr/1q2PNpP/q3n3/2QpR3/1R4Pb/6NP/BBbP4/2br1kbK b - - 0 1 illegal: Other
1b1n1Q1n/qb2b2r/1NpP1r2/P1r1BPRp/2n5/1KP4P/1nBRn3/1k2Nn2 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 a4 Kd7 f4 Kd6 d4 Kd5 Kd2 e5 c3 h5 Kc2 g5 h3 b5 f5 b3+ Kb2 b4 a5 e3 Ra3 Ke4 d5 g3 d6 g4 Be2 g2 Ra1 g3 Ra4 Nc6 Bf1 e2 Nd2+ Kd3 Qe1 e4 Ngf3 g1B Bg2 e3 Qf2 e1N Qf1+ e2 Rh2 Nge7 Ra1 Ng6 Ra3 Rh7 Nc4 Be7 Bf4 Ba7 Ng1 Nh8 Bh6 Qd7 Bf3 g2 Ka1 Kc2 Bg7 b2+ Ka2 b1N Bd4 b3+ Ka1 b2+ Ka2 Nd2 Bc5 b1N Nb6 Nc4 Nd5 Nd3 Rb3 e1R Bb6 Re5 Bd4 Nbd2 Rb8 Ba6 Qa1 Nf1 Rg8 Rf8 Rg5 Rf6 Be2 Bc8 Nf3 g1N Rf2 Bd8 Qe1 Bb8 Rh2 Ndb2 Nb6 Rc5 Bd1+ Kc1 Kb3 Kb1 Qe8 Be7 Ne1 Nd8 Qg8 c6 Rd2 Ne2 Be5 Qa7 Qf8 Bb7 Bc2+
4N3/nrBPr2B/2bp4/2bq1rN1/b1pn1RK1/2PP1rP1/1RPn3r/Q1bk4 b - - 0 1 illegal: Other
bq5r/1BNKRn1k/2pP4/3Rr3/P1Pqr2p/4BPpP/QN2q2r/b2n3b b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 f5 b5 fxg4 b6 axb6 Ba3 b5 Bc1 b4 Ke2 Kf7 Ke3 Kg6 Kf4 e5+ Kg3 b5 d4 h5 c4 h4+ Kg2 e3 a4 e2 h3 e1R d5 e4 d6 e3 Qe2 c6 Qd1 e2 Rh2 b3 Bh6 b4 Nd2 b2 Ra2 b1R Ngf3 b3 Rc2 g3 Ng5 b2 Kf3 g2 Kf4 g1Q Ke5 Nd7+ Ke6 Ngf6 Nge4 Ng4 Rg2 Ra5 Nf6 Ne5+ Nd7 Bb7 Be3 Nf7 Bc5 Ba8 Ne5+ Kh7 Nd3 g5 Ne4 Ne3 Qd2 g4 Nc3 g3 Nb5 Bg7 Nc7 Nd1 Be3 Qb8 Kd7 Re5 Rc1 Ra1 Rc3 b1B Qa2 Bf6 Nb2 Be4 Rd3 Bd5 Rh2 Bh1 Rd5 Rc1 Bg2 Rc2 Bf3 Re4 Bg4 Be5 Nd3 Ba1 f3 Re5 Nb2 Rd2 Ba7 Qd4 Be6 Rf1 Rg2 e1Q Re2 Rc2 Re4 Qe2 Bg4 Re1 Bb6 Qdd3 Be3 Qd4 Be6 Qed3 Bg4 Rh2 Be6 Qe2 Bg4 Rf5 Re7 Re5 Bc1 Qf1 Be6 R1e4 Be3 Kg8 Bf5 Qb7 Ke8 Qe2 Bc8 Qb8 Kd7 Kh7 Bb7
2rr1RNK/k1pp1Np1/2qP2b1/6n1/4BqP1/Q1P1bPP1/2r1Rpqn/B1b5 b - - 1 3 illegal: Other
6b1/pK2bpPN/PRn1N1Pb/rp2p3/1n1n1qQk/R2B3P/1P1r4/2B1b2r b - - 0 1 illegal: Other
6Bn/3pP3/1B1rp1b1/rRPPR1q1/4PQbk/b1qn1P2/ppb2NK1/n1N5 b - - 0 1 illegal: Other
1rb1Bb1q/1pBp1K1n/2Nq3P/PRR2N1p/4rp1r/1P1PQP2/5q2/k5rn b - - 2 3 illegal: No proof kernel
R1Q1q1k1/4P3/n3p1p1/2p2q1p/2bB3P/bP3rpn/RrPKNP2/1q1B1Nr1 b - - 0 1 illegal: No proof kernel
1kN4B/2P2n1K/r3pr2/RPQq2pR/B2bP3/5N1n/1P1pp1Pp/b4qrb b - - 0 1 illegal: Other
K2br2q/2q5/P2BP3/4q3/B2PPN1p/pb2kPNR/5Q2/Nn1q3n b - - 0 1 legal: proof: b4 b5 h4 f5 g4 fxg4 a4 a5 h5 g5 Rh4 gxh4 c3 d5 Na3 e5 Nb1 d4 axb5 d3 h6 Qd4 cxd4 e4 Qa4 Bxh6 Qd1 e3 dxe3 a4 Nf3 Nf6 Ng1 Ra5 bxa5 Bf8 Kd2 Bd6 Na3 Nfd7 Nh3 Nc6 Bb2 Nf6 Bg2 Nb4 Qb3 Bf8 Rh1 Ne4+ Ke1 Bc5 Ng1 Bf8 Bf1 Na6 Bc1 Nb8 Qd1 Nf6 Nb1 Ng8 Kd2 Kf7 Kc3 Kg6 Kc4 Kf5 Kd5 h5 f3 c5 b6 d2 e4+ Kf4 a6 g3 b7 c4 e5 a3 e4 h3 Qe2 c3 Qh2 c2 Bb5 Nf6+ Kc4 Ke3 Be8 g2 Kb5 Nc6 Kb6 Be7 b8N Na7 Bg6 Bd8+ Kc5 Re8 Ne2 g1Q Nbc3 Nb5 Kc6 Qg3 Nf4 Ng4 Nce2 Be6 Kb7 Bb3 e6 Nc3 Nd7 Nf2 Nc5 Nb1 Ka8 Qg5 Qg1 h2 Ng3 Qe5 Bf7 Rf8 Be8 Rh8 Bb2 c1Q Ba4 d1Q Bc3 Re8 Ba5 Qc4 Bc7 Qc3 Bd6 Qa5 Qg2 Qc7 Rf1 h1Q Qh2 Qg2 Rh1 h4 Qg1 Qh8 Rh3 Qgf1 Qg2 Nh1 Qa2 Qb5 Qh2 Bc2 Nb3 Qbe5 Na1 Bb3 Qf2+
b4n2/2k2r1q/Q1b1n1r1/p1P5/4B1P1/2B1B2R/pp1NPPrP/1b3KN1 b - - 0 1 illegal: No extended proof kernel
6n1/4P2q/r2Pnq1k/nb3r2/7Q/1PNB1bnp/3PrBPK/2R1B1Nn b - - 0 1 legal: proof: h4 d5 f4 b5 a4 g5 axb5 gxh4 f5 Bg7 c3 Bd4 cxd4 e6 Ra3 exf5 Ra4 f4 Rc4 dxc4 Kf2 Kf8 e4 Kg7 b3 a5 d5 f5 d6 c5 b6 h5 e5 f3 b7 a4 e6 h3 Kg3 h2 e7 c3 Nh3 f2 Rg1 h1N+ Kh2 c2 Bd3 f1B Bc4 a3 Bd3 c4 Qe1 a2 Qh4 a1Q Qd4+ Kh6 Qc3 f4 Qa5 c3 Bb2 c1R Qa3 h4 Qa5 f3 Ng5 h3 Ba3 c2 Nh7 f2 Bf5 Re1 Qe5 c1N Qd4 Re2 Qb4 Nc6 b8B Bb7 Qb6 Nd3 Qa7 Nf4 Nc3 Na5 Ng5 Ne6 Qd4 Bf3 Bd3 Ra6 Ba7 Qa8 Qf4 Qe4 B3c5 Rh7 Bab6 Rf7 Ba7 Qh7 Qh4+ Bh5 Nf3 Rf5 Na2 Qf6 Nc3 Ree5 Bcb6 Be2 Rc1 f1N+ Kg1 Nfg3 Bf2 Bf1 Kh2 Re3 Be1 Re2 Qe4 Bg4 Ng1 Bf3 Baf2 Re3 Bc2 Bb5 Bd3 Re2 Qh4+
6q1/4rn1b/1b4Pp/r2NPrP1/P1qRB2R/3P3Q/k1q2bK1/1b1B1Bn1 b - - 0 1 legal: proof: h4 e5 b4 g5 hxg5 c5 f4 a5 fxe5 d5 c4 a4 Bb2 cxb4 c5 a3 Nf3 axb2 Na3 Qf6 Nc4 dxc4 Ng1 Qd8 Kf2 Ke7 a4 Ke6 e4 b1Q g4 f5 g6 b5 c6 c3 c7 c2 Ne2 c1B Bg2 b3 Re1 f4 Rg1 b2 Qc2 f3 Kg3 f2 Bf1 b4 Qc5 b3 Qa5 Qbd3+ Kh2 b1Q Rg2 b2 Rg1 Qc4 Rh1 Nc6 Qb5 Qbc2 Bg2 f1R Nc3 b1B Ra3 Nd4 Kg3 Ne2+ Kh3 Nh6 Qb3 Bc5 Nd5 Rf5 Bf1 Ra5 Kg2 Nf7 Rh4 h6 Qh3 Qg8 Rd3 Rh7 Rd4 Bb6 d3 Be3 g5 Ng1+ Kg3 Bf2+ Kg2 Kd7 e6+ Kd6 e7 Kc5 e8B Be6 c8B Rg7 Nf6 Kb4 e5 Ka3 Bc6 Ka2 Bf3 Nh8 Be4 Re7 Nd5 Nf7 Bd7 Qh7 Bc6 Nd8 Bf3 Bg8 Nc7 Nf7 Bce4 Qh8 Bg4 Bh7 Bd1 Qg8 Nd5
4R1Rq/1Qr1RBkP/p2b2rN/b1bbbn2/PP1P1b2/4bPp1/6B1/3K4 b - - 0 1 illegal: No proof kernel
5bq1/nN1P1q1b/q1PQn2r/4Kb1p/PP3B1B/7P/p1bq2BR/2k3N1 b - - 0 1 legal: proof: d4 d5 e4 a5 g4 b5 Bf4 c5 Be3 Ra7 Bc1 Rd7 Bg2 cxd4 Bf1 d3 Bh3 d4 Bf1 Rd5 exd5 Qb6 Qf3 Qd6 Qd1 Qd8 b3 f5 gxf5 a4 Nd2 a3 Nc4 Be6 Nb2 Bd7 Nc4 Bc8 Nb2 axb2 a4 b4 Ra3 bxa3 b4 Ba6 Nf3 Bb7 Ng1 Bc8 Kd2 Kd7 f4 Kd6 c4 b1B h3 g5 f6 e5 f5 h5 f7 g4 f6 e4 c5+ Ke5 c6 Kf4 d6 a2 Bg2 g3 Qe1 e3+ Kd1 d2 Ke2 d1B+ Kf1 d3 Qc3 d2 Ba3 Bcf5 d7 Qa5 Qc2 Ne7 Qc3 Nc8 Nf3 e2+ Kg1 Na7 Rh2 Rh6 Bc1 Bdc2 Qd3 Na6 Qd6+ Ke3 Kh1 e1Q+ Ng1 Nc7 Qe5+ Kf2 Qd6 d1Q Bg5 Qf1 Bh4 Bg7 f8N Ke3 f7 Qaa6 Ne6 Bf8 Nd8 Qd2 Nb7 Ne6 Qb8 Kd3 Qd6+ Kc3 Be4 Kb2 Bg2 Be7 f8B Kc1 Bg7 Bf8 Be5 Bh7 Bf4 Qf3 Bfg5 Qf7 Be3 Bcf5 Bf4 Bbc2 Be4 Qe3 Kg2 Qd2+ Kf3 g2 Be3 Nd4+ Kf4 Ne6+ Ke5 Bfg6 Bf4 Bf5 Nf3 g1Q Bd5 Qgg6 Ng1 Qgg8 Bg2
4n3/1r2k1p1/1b1r3r/P6B/N1nnR2r/P2n1r2/P2Pb1Pp/BKB2NQ1 b - - 0 1 illegal: Other
1nk3b1/1np3Rr/1n1PBKPP/nn6/2N3pP/1pPB3Q/R4Bbq/3b4 b - - 0 1 legal: proof: e4 a5 f4 b5 h4 d5 b4 axb4 f5 g5 g3 Ra6 Nc3 Rg6 fxg6 dxe4 Nce2 h6 Nd4 Bg7 Ndf3 Bf6 h5 g4 Ng5 Qd6 N5f3 Bh4 gxh4 Qd8 Ng5 hxg5 Ke2 Kd7 Ke3 e5 a4 f5 d4 f4+ Kf2 b3 c3 b2 a5 b1B h6 e3+ Kg2 e2 d5 e1N+ Kh2 b4 a6 g3+ Kh3 e4 Kg4 f3 Kf5 f2 a7 b3 a8B g2 Bd3 f1B Bc2 g4 Ne2 g1N Bb2 e3 Qd2 Rh7 Bc1 Nef3 Rh3 Nf6 Nf4 e2 Qe1 Nd4+ Ke5 Bg2 Ra7 Ndc6+ Kf5 Na5 Ra6 Nf3 Qg3 e1N Be3 Nd3 Bf2 Nc5 Nd3 Ncb7 Nb2 Nd4+ Ke5 Qh8 d6 Nb5 Bd3 Bc2 Nc4 Bd1 Rh1 Qg7 Rf1 Nd5+ Kf5 Qd4 Qh3 Nb6 Ra7 Qe4+ Kf6 Qe2 Re1 Qd2 Re7+ Kd8 Rf7 Be6 Rg7 Kc8 Ra6 Bg8 Ra7 Nd8 Bd5 Ndb7 Ra8 Qe1 Ra7 Qh1 Ra6 Qh2 Bf7 Nac6 Ra2 Nca5 Be6+
2Rq1R2/Pp1qq2P/1B3qp1/P3p1k1/n3Kn2/bNRP2PQ/bb5r/6N1 b - - 0 1 legal: proof: c4 a5 f4 f5 e4 h5 b4 d5 bxa5 dxc4 g3 h4 Bg2 h3 Qb3 hxg2 Qd1 fxe4 f5 e5 Qb3 Ra6 Qd1 Re6 fxe6 Rh6 Nh3 Rh5 Ng1 Rh8 Ke2 Ke7 Ke3 Kf6 h4 c5 a4 c3 h5 g6 h6 c2 e7 c4 e8R c3 d3 Kg5 a6 Ba3 a7 Nf6 a5 Nbd7 Rh2 Nd5+ Kf2+ e3+ Kf3 Nc5 Nd2 e2 Qf1 e1Q Qf2 Nf4 Qf1 Be6 Re7 Ba2 Rf7 Na4 Rh4 Qf2+ Ke4 Qd7 Ne2 g1Q Rf8 Qd8 Bb2 c1B Qh3 c2 Bd4 Bcb2 Bb6 c1Q Nb3 Qcc5 Rc1 Qce7 Rc3 Qc1 Rc8 Qcc7 Ng1 Qcd7 Re8 Rf8 h7 Rf6 Rh8 Rc6 Rf8 Rc2 Rc3 Qf1 Rc8 Rh2 Rc3 Nh5 Rc8 Qff7 Rf4 Qff6 Rf2 Nf4 Rfc2 Rd2 R2c4 Rh2 Rc3
1Nn3b1/2p1n1bQ/3r1RP1/N2BP1p1/P2Bp3/1P3Pqb/1Np1K3/rq4k1 b - - 0 1 illegal: No proof kernel
qrn2Q2/P1K4p/4rb1P/4P2b/q3PB2/kB1bqPRB/q2nN2r/1q4N1 b - - 0 1 legal: proof: d4 a5 g4 c5 b4 axb4 a4 e5 dxe5 f5 Nd2 fxg4 Ra3 c4 Rb3 cxb3 Nb1 Ra6 Qd3 Ra5 Qd1 Ra8 Kd2 Ke7 Ke3 b5 Kd4 g5 Kc5 d5 c4 d4 f3 d3 e3 d2 a5 b2 a6 g3 a7 b3 Qe1 d1Q Na3 b1B Bb2 b4 Bc3 b2 Nb5 g4 Bd4 b3 Qb4 g2 Bc3 g3 Be1 Bg7 Nc7 Bg4 Ne6 Bf6 Ne2 g1Q Nc1 g2 Bf2 Na6+ Kc6+ Nc5 Ne2 Rb8 Ng5 Bd3 Nc1 b1Q Bh4 b2 Ne2 Bh5 Nh3 Qa2 Bg3 b1Q Bf4 Qe8+ Kc7 Qda4 Qa3 Ke6 Qb4 Nb3 c5 Kd5 c6 Nd2 Qf8 Kc4 e4 Qe3 Nhg1 Kb3 h4 Ne7 Rh3 Ka3 Rg3 Rg8 Bg5 Rg6 Bf4 Bg4 h5 Rh6 Nh3 g1R Bg2 Rf1 Nhg1 Rf2 Bh3 Rg6 h6 Bh5 Be6 Rh2 Bb3 Qc8+ Kd6 Qb7 c7 Qa8 c8B Rg7 Qe8 Rg6 Bh3 Nc8+ Kc7 Bh4 Rg4 Re6 Rg3 Bf6 Qf8+
8/bPNP2pb/2nPrnNQ/4n3/b3P2b/kB2bbP1/2qNr1nB/3R1K2 b - - 0 1 legal: proof: b4 e5 f4 exf4 a4 h5 c4 b5 g3 d5 cxd5 bxa4 Ra3 h4 Rf3 h3 Rf2 Nh6 Rg2 hxg2 Bb2 Ng8 Ba3 Nh6 Bc1 Ng8 h4 Kd7 d4 Kd6 e4 a5 b5 f5 h5 c5 h6 f3 b6 f2+ Ke2 a3 h7 c4 b7 a4 Rh5 f4 Rh4 a2 Qd3 a1N Rh2 a3 Nf3 g1B Ne5 f3+ Ke3 c3 Qe2 a2 Na3 c2 Qd2 Be7 Rh5 Bh4 Ng4 Nc6 Nh6 Qc7 Bb2 c1N Be2 f1B+ Kf4 f2 Kf3 Nc2 Bd3 a1B Nb1 Ne3 Qe1 Bf5 Bc2 Nf6 Ng8 Nd3 Qd2 Ra2 Bb3 Ng2 Ne7 Re8 h8N Bh7 Qh6 Qc8 Bc1 Re2 Nhg6 Bc3 Be3 Bd2 Nf4 Bc1 Neg6 Re6 Rf5 Ne7 Nd2 Qc2 Rg5 Nc6 Rf5 Ba3 Rg5 Bc5 Rf5 Ba7 Re5 Kc7 d6+ Kb6 d5+ Kb5 d7 Kb4 d6 Ka3 Rd5 Ng8 Kg4 Nde5+ Kh3 Nf6 Bd4 Re1 Be3 Be2 Rd4 f1B Nd5 Bf3 Nc7 Bf2 Kh2 Re2 Kh1 Be1 Bg1 Bf2 Bh2 Be3 Rd3 Rf2 Rd5 Bb5 Kg1 Re2+ Kf1 Ba4 Rc5 Qd3 Rc1 Qc2 Rd1
n2bq1bN/1pP2nr1/rr2Pp2/Q7/P1K1kP2/2b3n1/1PB3nB/n2BR1N1 b - - 0 2 illegal: No possible last move
1N6/bk2R2b/1q5R/3p1nPq/5Q1b/rBPP3p/1Knr1nPP/3qNNq1 b - - 0 2 legal: proof: e4 a5 b4 axb4 f4 g5 fxg5 d5 Bb2 dxe4 Be5 Qd4 Bf4 Qd8 Bd6 cxd6 a4 Kd7 c3 Kc7 a5 h5 a6 f5 a7 b5 Ra6 e5 Qc1 b3 Kd1 h4 Qc2 b4 Kc1 b2+ Kd1 b3 Be2 e3 Qe4 h3 Rb6 f4 Bc4 f3 Bf1 f2 Bc4 Nc6 Na3 b1Q+ Ke2 b2 Be6 Nh6 Bf7 Nb4 Bd5 Nf5 Qf4 e4 Qf3 Nd3 Ba2 Qe8 Qf4 Qh5+ Nf3 Qg1 Rb8 b1Q Nc4 Qb6 Qg3 f1N Kd1 e2+ Kc2 e1B Nd4 e3 Bb3 e2 Nf3 Nf2 Qh4 N1e3+ Kb2 Nc2 Ne3 d5 d3 Bc5 Qb4 Rf8 Nf1 Bd7 Rc8+ Kb7 Rc6 Be8 Re6 Bg6 Qf4 Bh7 Rg6 Rfe8 Rh6 Re4 Nh4 Ra4 Nf3 Re8 a8N Ra3 Nc7 Rea8 Kc1 Ra2 Kb1 R8a3 Na6 Na1 Nc7 Rd2 Na6 Nc2 Nb8 Nd1 Rd6 Bh4 Rh6 e1Q Kc1 Qe2 Ne1 Nf2 Kb2 Qd1 Nf3 Qa5 Ng3 Qge1 Rg1 Ba7 Rf1 Qe7 Re1 Qb6 Re4 Qg1 Nf1 Qee8 Ne1 Qd1 Re2 Qh5 Re7+
1Bk3K1/3R1r1r/R1n1q3/2P3n1/1br1bp1P/qR1PnPp1/q1NQB1P1/2q5 b - - 0 2 legal: proof: e4 d5 b4 dxe4 b5 c5 Na3 a6 Qg4 axb5 Qg6 b4 Nc4 h5 Qh7 h4 Na5 c4 Nb3 cxb3 Qxh4 Na6 Qh7 Nb8 Ke2 Kd7 Ke3 b5 Kf4 g5+ Kf5 e5 c4 b2 a4 b1R h4 e3 d3 e4 f3 b3 a5 g4 a6 e2 a7 e1N Ra5 b2 Qh5 b4 Ra6 g3 Be3 b3 Rc6 Nc2 Rg6 Nh6+ Ke5 f5 Ra6 f4 Ne2 Bb7 Bc5 e3 Ng1 e2 Qf7+ Kc8 Ke6 e1Q+ Be3 Rc1 Qh5 b1Q Rh2 b2 Qa5 Qa2 Rh1 b1Q Be2 Be4 Qd2 Rh7 Bb6 Qbb2 Bc7 Nc6 Bd6 Qb4 Bb8 Qdb6 Kf6 Ne3 c5 Rc4 Ke6 Qc1 Kf6 Bg7+ Ke6 Nhg4 Kf7 Bc3+ Kg8 Rf7 Ra3 Qa6 Rb3 Qba3 Rb7 Bb4 Rd7 Nd4 Bc7 Rb8 a8R Qe6 Ra6 Rb7 Bb8 Nc6 Bf1 Rb6 Ne2 Nf2 Nd4 Rb7 Nc2 Nh3 Be2 Ng5 Rg1 Qcb2 Rb1 Qc1 Rb3 Ra7 Rd4 Rae7 Rd7 Rh7+ Kf8 Ref7+ Kg8
5B2/P1P3B1/QrRn2q1/b1n1p3/bb2Pk1P/NPp1r2B/3rqb2/K2R2q1 b - - 0 1 illegal: No proof kernel
krq4Q/4PbRp/3r2PB/3r3P/nb2KPPq/2N1n2N/R6p/qn1q2N1 b - - 0 1 illegal: Other
4q3/Nn4Rn/1RPp4/r5pr/3r1Rq1/1Prb2P1/kPP1nK1b/1b1NQB2 b - - 0 1 illegal: Other
B1r3r1/q2pkbPP/1qPB1q2/b2r3N/nn1P3R/6Q1/3pn1KP/N4rN1 b - - 0 1 illegal: Other
4N1R1/2r1q1nr/pKP2Nrp/6B1/bn4Q1/r1PP3r/1P4NP/b2R1rnk b - - 0 1 illegal: Other
2b3nq/1q1nb1B1/3p4/1n3kPn/1K1n1Prn/R1P1pNRP/r2PR3/2N4Q b - - 0 1 illegal: No proof kernel
3K4/q5P1/rp1b3n/rPBBn2B/P3QPp1/b5rr/4bP1k/bn1R2RN b - - 0 1 illegal: No proof kernel
3B1nK1/q4P2/P2rPkB1/b1p1p3/2PqQ1rP/1BRn1qR1/br4r1/2q1N3 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 axb4 d5 f6 d6 Kf7 e5 Ke6 Nd2 Kd5 Nc4+ Kc6 dxe7 Ra5 e6 Ra8 Ne5+ fxe5 Kd2 Kd6 Kd3 b5 e8B Ke7 Ke4 d5+ Kf5 g5 Kg6 b3 a4 g3 f4 g4 h4 g2 a5 d4 c3 b2 a6 b1R f5 g3 Qg4 b4 Bc6 d3 Qc4 d2 Qe4 d1Q Qf3 b3 Bb2 Nf6 Qg4 Qf3 Qd4 Ne4 Bc1 b2 Qd5 Nc5 Qb3 Nd3 Ne2 g1Q Qd5 g2 Qc4 Bb7 Be3 Qd4 Nf4 Nd7 Ra3 Rd8 Ba4 Bd5 Rh3 Rg8+ Kh7 Rg4 Rg3 Kf6 Bb3 Bb4 Qc6 Bc4 Qe4 Nf8+ Kh8 Qa7 Bb6 c5 Bc7 Rd6 Bd8+ Qe7 Be2 Ba5 Bed1 Qd4 Bdc2 g1R Ng2 Bd5 Ne1 Bc4 Ra1 Rg2 Ra3 Ng6+ Kg8 Bd5 Ba4 Ba2 Be8 Nf8+ Bg6 Qfe3 c4 Qf3 Bb6 Qa7 Rc3 Rd1 Bb3 b1Q Bc7 Rdd2 Bb6 Qc1 Bc7 Rb2 Bd8+ Qe7 Bb6 Qa7 Bc7 Ke7 Bb6 Rd7 f6+ Kd6 f7 Ke7 Qa8 Rd6 Qe4 Kf6 Bd8+
2r2n2/N1Rp3R/1q2n3/b1pBKN2/2r1n3/rPPPN1n1/kP1q1P2/2Qq1n2 b - - 0 1 legal: proof: h4 g5 e4 gxh4 d3 f5 Nc3 fxe4 Be3 b6 Bd2 Bb7 Nb1 Bd5 Ba5 Bb3 axb3 bxa5 Kd2 Kf7 Kc3 Ke6 Kd4 h5 g4 e3 g5 h3 g6 h2 g7 h4 c3 e2 Na3 e1Q Qf3 a4 Qb7 a5 Rd1 h3 Bg2 Nc6+ Kc5 Nd4 Qb6+ Ke5 Ne2 Rh4 Bc6 Qd2 Ng1 Nf6 g8N Rc8 Nf3+ Kf4 Ng1 e5+ Ne7 e4 Qa6 e3 Bf3 e2 Rb1 e1N Qe6 Ng2 Bb7 Ne3 Qg8 Ne6+ Kb5 Nh7 Qg2 Nf1 Nc6 Bb4 Kc4 Nhf8 Ne7 c5 Kd5 Qb6 Nb5 a3 Ba8 a4 Re1 a2 Rc1 a1R Bb7 a3 Qg7 a2 Rc2 Ba5 Ne2+ Kf3 Qg5 Rc4 Rg1 h1N Na7 h2 Rc1 Nhg3 Nf5 h1N Ne3 Ne4 Ke5 Nhg3 Qh6 Rb1 Rh1 a1Q Rd1 Rc1 Bd5 Qb1 Rh2 Qbc2 Rh4 Ra1 Qg5 Ra3 Ra1 Qcd1 Rh7 Ra2 Nf4 Ra3 Ng6 Ke2 Ra2 Q2e1 Nh4 Kd2 Qh6 Kc1 Nhf5 Kb1 Qf4 Qed2 Qg5 Bb4 Qh6 Ra6 Ra4 Ba5 Rb4 Ka2 Qh1 Qd8 Rb7 Qb6 Qg1 Bb4 Qh1 Ra3 Rc7 Ba5 Qf3 Q1c1 Qd1 Qb1 Qc2 Qbd1 Qc1
2K2Q1q/1pn1rbN1/1P1P2r1/R1p1qRB1/q1P4r/1P2r1R1/N3r1P1/3k2br b - - 0 1 legal: proof: h4 d5 e4 dxe4 h5 f5 Ke2 g6 b3 gxh5 Ke3 Nd7 Kd4 h4 Kc3 f4 Be2 Nc5 b4 Nb3 axb3 f3 Ra6 fxe2 Ra5 Bd7 Ra1 Bc8 Kc4 Kf7 Kb5 Ke6 f4 Kf5 c4 e1Q d4 h5 d5 e5 Nh3 a5 Bb2 a4 Nc3 e3 Qf3 e4 Qe2 a3 Nd1 a2 Bf6 Ne7 Ng5 h3 Rf1 h4 Qc2 h2 Qc3 h1R Be5 e2 Nh3 e3 Rf3 Ke4 f5 Rh6 f6 Be6 f7 Rg6 Rc1 a1Q Ng1 h3 Rf5 h2 Rc2 Ra2 Bf4 c5 d6 Nd5 Rb2 Nc7+ Kb6 Bg7 f8R Bf7 b5 Bd4 Bg5 Qf6 Rd2 Qh8 Ra8 Rc2 Nf3 Qa4 Nh4 Qg3 Rf8 e1R Rd3 e2 Ra8 Bg1 Qf6 Qe5 Rg3 Rc3 Qg7 Re3 Ra5 Kd3 Nc3 Kc2 Na2 Kd1 Qh6 Rf1 Ka7 e1R b6 R1e2 Qf8 Rf4 Kb8 Rfe4 Qc8 Qd4 Qd8 Re7 Qf8 Qde5 Kc8 Bf2 Kb8 Rhe1 Kc8 Rf1 Nf3 h1R Nd4 Rh4 Ne6 Rfh1 Ng7 Bg1 Rff3 Rg4 Rf2 Rgh4 Rf5
1K2N2n/2n1bp2/q1r2prR/r1P1PP2/q7/k2nP2R/3PQB1p/1b3bBB b - - 0 1 illegal: Other
N1r1Q2n/5PK1/1r3pR1/NbqqP1P1/3Rp1q1/3Np1n1/4PB1P/b1bn3k b - - 0 1 illegal: No proof kernel
nr4rN/R3q1bK/n2rpp1p/P3BQbP/1PRB3q/1k3Pn1/1q2P3/7R b - - 2 3 legal: proof: d4 c5 Bd2 cxd4 Qc1 b6 Qd1 Bb7 Bc1 f6 g4 Bd5 g5 Kf7 g6+ Ke6 Nd2 Kd6 Nb1 Bf7 gxf7 Kc6 b4 a5 Nd2 a4 Bh3 b5 Be6 Qc7 Bb3 Qd8 Nc4 Nh6 Nb6 axb3 a4 Ng8 a5 Kc7 Na4 bxa4 Ra3 Kd6 Ra1 Kc6 Kd2 Kb5 Kd3 g5 Ke4 Kc4 Kf5 d5 h4 h6 Kg6 a3 f3 a2 c3 e6 h5 d3 Qc2 d4 Rh3 b2 Rb1 a1Q Bd2 g4 Bf4 g3 Rh4 d2 Bc7 d1R Nh3 g2 Rf4 g1B Rh4 Be3 Bf4 d3 Qd2 Kb3 c4 Bg7 f8B Qe7 c5 Na6 c6 Rb8 Qc1 d2 Bh2 Bg5 c7 Qa2 Ra1 b1N c8R Na3 Qc5 Qb2 Rc4 Nb5 Qf5 Nbc7 Nf4 Na8 Re8 Rf1 Rd8 d1Q Rd7 Qdd4 Ra7 Rd1 Bg1 Qe4 Bd4 Rd3 Be5 Rd6 Rh1 Qed4 Nh3 Qh4 Nf4 Qc7 Be7 Qd7 Bd8 Qb7 Bb6 Ne7+ Kf7 Rhg8 Bbd4 Qc7 Ng6 Qd7 Nh8 Qc7 Qh3 Nf5+ Kg6 Qe7 Kh7 Ng3 Qf5
1n1kNb2/3bp3/p5r1/1p4NR/PP2K2P/n1P2n1r/nR1BPQ2/b1Nn2q1 b - - 2 3 legal: proof: f4 g5 fxg5 f5 d3 c5 d4 cxd4 g4 fxg4 Nh3 h5 Bg2 h4 Ng1 h3 Kf1 hxg2+ Kf2 Bh6 Ke1 Bf8 Kd2 d5 Kd3 b5 b4 g3 a4 a6 h3 Bd7 g6 Qb6 g7 Nf6 g8N Ne4 Nc3 Kd8 Na2 Nc3 Bb2 Nb1 Nc3 Na3 Nf3 g1N Ne4 g2 Nfg5 Nf3 Rf1 g1B Rb1 Rh6 Ba1 Rg6 Nc3 Bh2 Na2 Be5 Bc3 Ra7 Ra1 Nh2 h4 Rc7 Nh7 Beg7 Kd2 d3 Rb1 Qg1 Ngf6 d4 Ne8 Rcc6 Rf5 Rce6 Rd5 Re3 Rg5 Rh3 Qe1 Bf6 Rh5 Nf3+ Kd1 Bh8 Ng5 Bf6 Kc1 d2+ Kb2 d3 Qf2 d1N+ Kb3 d2 Nc1 Ne3 Kb2 Nd5 Kb3 d1N Bd2 Ba1 Rb2 Nb1 c3 Nf4 Kc2 Nd3 Nb3 Nc1 Rh7 Qg2 Rh5 Na2 Kd3 Qg1 Ke4 Na3 Nc1
Q7/4N3/3q1Bk1/2rP1p2/pnPK2nb/2P2b1P/b1Rn1PpB/1rNb1Br1 b - - 0 1 illegal: No proof kernel
N2q1rn1/2b1N1Q1/4PPnq/prRq1n2/1BPn1p2/P2k1P2/1Rp2b2/K5N1 b - - 0 2 illegal: No proof kernel
B6n/3P3N/PB1q2pp/2q2rq1/1Pn3P1/4P1B1/KpRr1qn1/2bR1bQk b - - 0 1 illegal: No possible last move
rr1b1q2/1p5R/BP3Nb1/p6p/nnk1PP1R/1bP4P/2r1Rb2/2r1N1QK b - - 1 2 legal: proof: d4 e5 g4 exd4 a4 f5 gxf5 c5 a5 Qxa5+ Bd2 c4 Bg2 c3 Kf1 cxd2 Bh3 Qb6 Kg2 Qg6+ Kf3 Qf6 Bf1 Qa6 Kg2 Qa2 b4 Kf7 f4 d5 c3 h5 f6 Ke6 f7 g5 e3 a5 h3 d3 Qc2 d1B Kh2 g4 Nd2 d4 Nb3 Kd5 e4+ Kc4 Ne2 d2 Kg2 d3 Kg1 g3 Rh2 g2 Nbd4 Ne7 Qb2 Bb3 Nc6 d1R Ned4 Rc1 Qd2 Qa3 Qd1 Na6 Nb8 Nd5 Nd7 Nc5 Nf6 Be7 f8R Bf5 Rf7 Rhb8 Nf3 Bd8 Ne1 Bg6 Rh7 Rc2 Ra2 Na4 Rh1 Rf2 Re2 d2 Qb1 d1R Kh2 Bc7 Rg1 Bd8 Ra2+ Re2 Nc2 Kb5 Qc1 Bc4 Qe3 Bb3 Ne1 Rc1 Qd4 Kc6 Rd2 Rf2 Ba6 Kd6 b5 Qb4 Rd1 Rfc2 Rd2 Qa3 Qe3 Qc5 Re2 Nb4 Rf1 g1B+ Kh1 Qc7 Rf3 Qf7 Rg3 Qf8 Qa7 Bgb6 Rg4 Kc5 Rh4 Kc4 Re3 Nb2 Re2 Bg1 Qf2 Na4 Qh2 Bd4 Qg1 Bf2 b6+
3R3k/NNrN1p1b/p1BBnP1p/1P2bqnp/3P3r/1nKb4/1P2P1q1/2Q5 b - - 0 1 legal: proof: d4 b5 c4 d5 h4 dxc4 a4 e5 axb5 e4 h5 g6 Ra3 gxh5 Rd3 exd3 Kd2 c5 f4 a6 g4 c3+ Ke3 h6 g5 d2 Kd3 c2 f5 c4+ Kc3 Nd7 g6 Ra7 g7 Nc5 Nf3 Qd5 Bg2 Bd6 Nh2 Rc7 Kb4 c3 Bf3 Nf6 g8N Kf8 Ne7 Kg7 Qe1 d1B Qf1 Nh7 Be4 Rg8 f6+ Kh8 Rg1 Bf5 Nf3 Be5 Na3 Ne6 Nc6 Nhg5 Bf4 c1Q Na7 c2 Nc4 Qb1 Na5 c1N Nb7 Nb3 Bh2 Bc2 Qc1 Bd3 Rg4 Bf4 Ne5 Bh7 Nd7 Be5 Bh1 Qe4 Rg3 Qf5 Bc6 Qf2 Kc3 Qg2 Qe3 Qbf1 Qc1 Qf5 Re3 Nf3 Re4 Rg4 Bf4 Rh4 Bh2 Bd6 Re5 Nfg5 Rd5 Bf4 Bg3 Be3 Be5 Bf4 Bd6 Be5 Bb4 Bb1 Ndc5 Bg8 Rd8 Bc2 Nd7 Bd3 Bf8 Bh7 Bd6+
5qR1/3bBp2/P3p2p/rPQ1P1q1/Nn1q1RkN/2P4p/1K1RbP2/3rn1r1 b - - 0 2 legal: proof: h4 a5 b4 b5 c4 bxc4 e3 g5 Bd3 gxh4 Bc2 a4 Ke2 c5 Bd3 c3 Bg6 c4 Bb2 c2 Bf5 c1R Kf1 c3 Ke1 c2 Be6 Bg7 Bb3 Bc3 dxc3 axb3 Kd2 d5 g4 Kd7 a4 Ke6 g5 Kf5 b5 e6 a5 h3 g6 d4 g7 h6 Qf1 d3 e4+ Kg4 e5 Nc6 Na3 Nge7 g8R+ Ng6 Nc4 Rd1+ Ke3 c1Q+ Ke4 d2 Ra3 Bd7 Kd3 Qf8 Nb6 Nb4+ Kc4 Rh7 Ra4 Rg7 Nf3 Nh4 Ba3 b2 Kb3 Ng2 Nh4 b1B Qc4+ Be4 Qd4 Ne1 Qc5 Bd3 Rg1+ Kf4 Rg3 Be2 Rd3 Rg6 Nc4 Rg1 Nb2 Qb1 Rd6 Qf5 Rd5 Qg5 Rd6 Rd8 a6 Kg4 Rd5 Rc1 Rd6 Rc2 Rd5 d1Q Rd2 Rc1+ Rc2 Qd4 Rd2 Nc6 Rc4 Ra1 Bb4 Ra5 Na4 Be8 Ba3 Nb4 Kb2 Rd5 Qb6 Bd7 Qa7 Nbc2 Be7 Nb4 Qc5 Qf4 Rc2 Rd1 Rd2 Qd4 Rd3 Qf4 Rcd4 Qe4 Rf3 Qf4 Rd2 Qd4 Rf4+
1k6/1pp2pp1/1PbNrP1P/B7/PN3QrR/1KN3b1/PR1bn1q1/1b1n1n2 b - - 0 2 illegal: Other
2B3nq/PNr1Pk1b/3p4/4Rb2/5Nqp/pp1PQ3/PNb4P/b1KnrR2 b - - 0 3 legal: proof: c4 a5 b4 g5 f4 gxf4 c5 a4 c6 dxc6 Ba3 c5 Bb2 c4 Be5 Qd5 Bd6 Qa5 bxa5 exd6 g4 b5 e4 f5 e5 h5 g5 c5 e6 c3 a6 b4 g6 h4 g7 f3 a7 f4 Bh3 c2 Ne2 c1Q Na3 b3 Rf1 c4 Nb1 a3 Nbc3 Qb2 Qb1 f2+ Kd1 f3 Qf5 Rh7 Ng3 Nd7 Nh5 Nc5 Ng3 Ne4 Nce2 c3 Rh1 f1B Ng1 f2 Qc5 Bd3 N1e2 f1B Qe3 Bb1 Nf4 Bfd3 Ngh5 c2+ Ke1 Be7 Rf1 Nc3 Bf5 Be4 Nd3 Bf6 Nhf4 Nd1 Bh3 Qe5 Nb2 c1Q d3 Qc4 Kd2 Bc2 Kc1 Rb8 Rb1 Rb7 Ra1 Rc7 e7 Rh5 Bg4 Bcf5 Rb1 Bh7 Bc8 Bef5 Re1 Kf7 Ra1 Nh6 g8N Bh8 Nf6 Ng8 Re2 Rg5 Rb1 Rg1 Ne4 Re1 Nc5 Qg7 Nb7 Qe4 Ng2 Qeg4 Nf4 Qf8 Qg1 Bd4 Re5 Qfg7 Qe3 Qh8 Nc4 Ba1 Nb2 Bfg6 Bd7 Be4 Bc8 Bef5 Nc4 Nc3+ Kd2 Rf1 Nb2 Rg1 Re1 Nd1 Kc1 Rh1 Rf1 Rg1 Rf3 Re1 Rf1
2qB2Nk/1Pq1P3/3rn2p/n1P2r1r/rpp2RK1/1P2bR2/2P2Q1p/b1BB4 b - - 0 2 illegal: Other
q3br2/1p6/3pPrn1/1P1PB1BB/3k1PPN/Q3bpp1/3r1rNq/1n2K1R1 b - - 1 2 illegal: No possible last move
4q1r1/p3QP1b/PP1B1nNq/1pn1r3/Bb2n3/2pkn1Pp/1P6/R1KRB3 b - - 0 2 legal: proof: e4 b5 h4 d5 c4 dxe4 c5 f5 h5 e3 h6 Qd6 Nc3 Qb6 Ne4 fxe4 cxb6 gxh6 Be2 h5 Bf1 h4 d4 Kd7 f4 Ke6 a4 Kd5 g3 c5 a5 h5 f5 e5 f6 e2 Kd2 Kc4 d5 h3 a6 h4 f7 h2 d6 h3 d7 e3+ Kc2 e4 d8B Nf6 Rb1 Rh5 Qd2 Bf5 Be7 Bh7 Qd1 Nbd7 Ra1 Re5 Bg2 e1Q Rb1 e2 Bd6 e3+ Be4 Rd8 Ra1 Qd2+ Kb1 e1Q Bg6 e2 Be7 Qh6 Bd3+ Kd4 Qc2 c4 Qd2 c3 Qg5 Nc5 Bd6 Be7 Bg6 Rg8 Nf3+ Kc4 Rf1 h1N Bc2 Nf2 Nh4 N2e4 Ba4 Kd3 Ng6 Qd2 Bd1 e1N Ba4 Qe3 Bd2 Nc2 Kc1 Qe2 Rd1 Ne3 Qh4 Nb7 Bc7 Bb4 Bd6 Nbc5 Qg5 Qg4 Qh4 Qc8 Qg5 Qe8 Qh4 Nfd5 Qe7 Ndf6 Be1+
1b2NKB1/4P1pP/2rr2P1/4Q3/1B2qp2/p2rk1Bn/P1R3Pp/3rqnrN b - - 0 1 illegal: No proof kernel
k1rbn3/3n3p/2nrN1pP/3pq1P1/R2P1p2/KQ2BP2/P3RqR1/Br1n4 b - - 1 6 legal: proof: d4 a5 c4 b5 g3 e5 Bh3 a4 Bf5 a3 Bd3 e4 Be3 exd3 Nc3 Ba6 Rc1 axb2 Ne4 b4 Rc2 Bb5 cxb5 b1Q Ng5 Qa1 Ne6 Qe7 Nd8 Qxd8 Kd2 f5 h4 c5 b6 d5 b7 Kd7 h5 Kc7 g4 g6 h6 f4 f3 b3 g5 c4 Qb1 b2 Kc3 d2 Nh3 Qf6 Nf2 Qe5 Rh2 Nc6 b8B+ Kb7 Nd3 Nf6 Rg2 Be7 Bd6 Rhd8 Bb4 Rac8 Nc5+ Ka8 Ne6 Ne8 Qd1 b1R+ Rb2 Rd7 Qb3 Rd6 Ba5 Na7 Kb4 d1N Ka3 Nc6 Bc3 Bf6 Rd2 Bd8 Bb2 c3 Rd3 c2 Rc3 c1N Rc4 Nd3 Ra4+ Na5 Bc3 Rc1 Bb2 Qb1 Ba1 Nc5 Bf2 Bc7 e4 Bd8 Bg1 Qc2 Be3 Qf6 e5 Qf2 Ng7 Qf5 e6 Rb1 e7 Nd7 Ne6 Qe5 Rc4 Ng7 e8R Nc6 Rc2 Be7 Re2 Bd8 Re7 Ne8 Rg7 Nf8 Rb7 Nd7 Rb4 Nef6 Rc4 Ne8 Ra4+
3QN1qB/1PbKbN2/2nPp1pp/k1r2NP1/2b2R1b/6q1/q1PpP1r1/1R6 b - - 0 1 illegal: No proof kernel
q1Q1b3/p2p4/3PbBnK/nr5N/B1P3Pn/kNpP2p1/P4p2/r2bB1R1 b - - 0 2 illegal: No proof kernel
1b6/RN6/1BpPb3/q1P2kP1/2p2P2/4nK1p/RrrBBppP/1nrq3Q b - - 1 2 illegal: No proof kernel
R2b2R1/1P2p1pn/3PP2Q/qb2p1pB/pprR2K1/1N1n4/PP1q3k/4q2B b - - 1 3 illegal: Other
1N2q1Q1/1nppRb2/1rp3P1/1p1P3p/2PK3k/2n1n1pb/rN2PN1P/R1b4B b - - 0 1 illegal: No proof kernel
bn2QN1K/1nr1PNR1/n1b4Q/P3q1b1/PRrP4/p1r1r1kP/1B6/8 b - - 0 1 legal: proof: b4 b5 f4 d5 g4 h5 gxh5 a5 bxa5 e5 c4 exf4 cxd5 Ba6 a4 Bc8 Qb3 c6 Qa3 b4 Bh3 bxa3 Bf5 Bb4 Bd3 Bf8 Bb5 cxb5 Kf2 g5 Kf3 f5 e4 Na6 d4 Kf7 e5 b4 h3 g4+ Kg2 g3 Kf3 g2 d6 Ke6 h6 b3 d7 b2 h7 Nf6 Nd2 b1B Nc4 Bh6 Bd2 Be4+ Kf2 f3 Kg3 f4+ Kh4 Kf5 e6 f2 e7 f1N Ra2 f3 Rb2 f2 Rb4 Qc7 d8Q Qe5 Qf8 Ne3 Bc3 Kf4 Qe8 f1R Ba1 Re1 Qf8 Ra7 Rb7 Bd7 Rb4 Ba8 Nb6 Nc4 Nf3 g1R Ng5 Rg3 Bb2 Nd6 Rg1 Rc3 Nf7 Ree3 Rg5 Rg8 h8Q Rg6 Qc8 Rac7 Qce8 Nb7 Qhf8 Bb5 Nd7 Kf3 Qh8 Kf4 Nf8 Nd7 Kh5 Rgc6 Qg7 R6c4 Kg6 Ndb8 Kh7 Bc6 Kh8 Kf3 Rg6 Bg5 Qf6+ Kg2 Rg7 Kg3 Qh6
r1q1nkrr/N2q4/r1n3q1/2R3P1/PR2bBPP/1QP1p3/1Q2N2K/2nr4 b - - 0 1 legal: proof: f4 a5 b4 axb4 d4 c5 e3 cxd4 Kd2 g5 fxg5 d3 Ke1 d2+ Kf2 Bh6 Ke2 Bf8 g3 d5 Ba3 h5 Kf2 h4 Bh3 d4 Qh5 d3 Bg2 h3 Qd1 Bg7 Bc1 Bd4 exd4 hxg2 a4 f5 h4 e5 c3 b5 g4 f4 d5 e4 d6 f3 Kg3 f2 Rh3 f1R Ne2 g1N Nd4 b3 Bb2 e3 Bc1 b4 Nb5 b2 Qe2 d1Q N5a3 b3 Ra2 d2 Kh2 Rf6 Rf3 Bb7 d7+ Kf7 Qf2 Ne2 Nb5 Qe8 N1a3 b1Q d8Q b2 Qd6 Qg6 Na7 b1R Rb2 Be4 N3b5 Kg7 Qdg3 Ra6 Nd4 Nf6 Rf5 Nc6 Qb8 Kg8 Rb6 Rb3 Bb2 Nc1 Ba3 Rb5 Bd6 Re5 Rb7 Qc8 Rb2 Re8 Bf4 Kf7 Qe2 Reg8 Rc5 Kf8 Qeb5 Ne8 Ne2 Qc2 Qc4 d1R Rb7 Qb1 Qb4 Qc2 Qb2 Qd2 Rb3 Qdd7 Qb4 Na5 Q4a3 Nc6 Rb4 Qd4 Qaa2 Qdd7 Qab3
1K2N3/4Bpn1/3P3P/3Q2qP/pp3Rb1/qP1b1P2/1qRQnn2/1kBrr3 b - - 0 1 legal: proof: c4 d5 cxd5 e6 d6 Nc6 d7+ Ke7 Qa4 Nb8 Qc2 Nc6 Qd1 Nb8 d4 Kd6 d5 Na6 g3 Nb8 Bg2 Kc5 d6 Kb6 Bd5 exd5 Nf3 Kc5 Ng1 Kc6 a4 h6 h4 Kc5 a5 Na6 Rh3 Nb4 a6 Na2 Qc2+ Kd4 Nc3 Ke5 Qd1 Kf6 Ne4+ Kg6 Rh1 Be7 Ng5 Bf6 Ne6 Kh7 h5 Bh4 Ng5+ hxg5 gxh4 Nf6 Kd2 Kg8 Ke1 Kf8 Qd3 Ng8 Qd4 Nb4 Qd1 Nxa6 Qd3 Nb4 Qd1 Na2 Kd2 b5 Ke3 c5 b3 a5 f3 a4 h6 c4 Kd4 c3 Kc5 d4 Kc6 b4 e3 d3 Qf1 c2 Ne2 g4 Rh2 g5 Rh3 g3 Rh2 g2 Qh1 g1Q Nc3 g4 Rd2 g3 Nd1 g2 Rb1 Nf6 Nf2 Nh5 Rb2 Qf6 Kc7 Nc3 d8B Ng7 Rb1 Ne2 Qh2 Bg4 Qg3 Qb2 Bg5 Re8 Rd1 d2 Re1 d1B Qe5 Kg8 Bd8 Kh7 Kb8 Kg6 Qh2 Kf5 Ne4 Ke6 Ra1 Kd5 Ra2 Rhg8 h5 Qa3 Bd2 c1Q Rc2 Qcb2 Bc1 Re5 Qf4 Rge8 Qf5 Re6 Be7 Rg6 Rc4 Bc2 Qg5 Bd3 Rc2 Re6 Rd1 Rf5 Nf6+ Ke5 e4 Kd4 Rdd2 Rd5 e5 Qe3 Ne8 g1N Qf5 Qg5 Rc4+ Ke3 Rf4 Nh3 Rc2+ Kf2 Rc5 Ke1 Rc2 Kd1 Qe4 Rd4 Qd5 Nf2 Bd8 Rf6 e6 Rf5 e7 Re5 Nc7 Re6 e8Q Re5 Qeb5 Re3 Ne8 Ree4 Rc8 Re3 Be7 Ree4 Kc7 Kc2 Kb8+ Kb1 Rc2 Bc4 Kc7 Nc3 Qdc6 Re1 Kb8 Rdd1 Qcd5 Ne2 Qd2 Bd3 Qd5
2rr4/NBQ1q1PP/2P1kP2/1b2nP1q/6p1/1rNQp3/R2rp3/3nKnB1 b - - 0 1 illegal: No possible last move, all moves rejected
7K/1N1NqP2/1q3PPb/R1nQ1kP1/nnPqRp2/4B1q1/3rp2p/3Qr3 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 c5 d4 cxd4 e5 g6 Na3 f6 exf6 Kf7 Nb1 Ke6 f7 Kd6 Na3 Kd5 Nb1 Kc6 g4 b6 f5 Bb7 f6 Bh6 Bd3 Kd6 Bf5 gxf5 h3 Bf3 g5 Bg4 hxg4 Bf8 Rh4 Kd5 Rh1 Kc6 Ke2 Kd5 Kd3 Ke6 a4 d5 c4 h5 a5 h4 g6 f4 a6 h3 g5 b3 a7 b5 Qf3 b4 Na3 h2 Bb2 Nd7 Qf1 Nc5+ Ke2 d3+ Kf3 d2 Kg4 d1N Qf3 d4 Nc2 d3 Qg3 d2 Qc3 Bh6 Kh5 Kf5 Ra6 e5 Qd3+ e4 Ba1 b2 Qd6 b1Q Bb2 b3 Ra2 e3 Ra4 Ne7 Ne1 Nc6 Bc1 b2 Nd3 Nb4 Ra5 Nc3 Nf3 d1Q Re1 Na4 Qd4 Qb3 Nfe5 Re8 Nd7 Qe7 Qd6 Rac8 a8Q Rcd8 Qd4 Qa1 Qad5+ Qe5 Re2 b1Q Bd2 Qaa3 Qa1 Qg1 Qd1 Qg3 Bc1 Qa1 Bd2 Qd4 Bc1 Ne6 N3c5 Qbb2 Nb7 Qb6 Rd2 Nec5 Rd4 Re6 Re4 Qd4 Qc6 Qed6 Qb5 Qe7 Qc6 e2 Be3 Rd6 Qb5 Qa1 Qc6 Rd2 Qd5+ Qae5 Qb1 Rd1 Qa1 Rf1 Qad1 Re1 Q5d3 Nd5 Nf8 Bg7 Q3d2 Rd6 Nd7 Nb4 Qd4 Nca6 Qc5 Rd2 Qc6 N6c5 Qd5 Bh8 Kh6 Bg7+ Kh7 Bh6 Qc6 Q5d6 Kh8 Qd4 Qd5+
R4q1k/3bP1bp/4r3/K7/p2P3q/1b1p1PPP/1N1RNb2/1QrQqB1q b - - 0 1 legal: proof: e4 b5 Ke2 f5 Ke3 fxe4 a4 bxa4 c3 d5 f3 d4+ Kf4 e3 Be2 d3 Ke4 Nc6 Bf1 Nd4 cxd4 e2 Nh3 e1B Ng1 e5 Ke3 e4 Kf4 e3 Ke4 Bd6 Kd5 e2 Kc4 Bf8 Kc3 Nf6 Ra2 Bh4 Ra3 Ng4 Ra1 Ne3 dxe3 g5 e4 g4 Be3 Bg3 Kd2 Be1+ Kc1 g3 Bf2 gxf2 b4 Kf7 Kb2 Kg7 Ka3 c5 b5 a5 b6 c4+ Ka2 c3 g3 a3 Kb3 c2 Ka4 c1Q e5 a2 e6 Qh6 h3 Ra6 e7 Qh4 b7 Bd7+ Ka3 a4 b8Q Re6 Bg2 f1B Rh2 Bf2 Kb4 e1Q+ Nd2 Be2 Rb1 a1Q Bf1 Rg8 Qb6 Kh8 Ka5 Bg7 Rc1 Qb8 Qb1 Rc8 Rc2 Rc3 Nc4 Qf8 Rb2 Rc1+ Rb4 Rc2 Nb2 Rc3 Rb8 Rc1+ Qd2 Bd1 Ra8 Bb3 Ne2 Qa3 Bg2 Qh1 Bf1 Qd6 Rg2 Qdf4 Qd1 Qe3 Nc3 Qe1 Rh2 Be3 Rd2 Bf2 Ne2
6K1/q4Pp1/3pBPQr/b1n2PqR/N2P2kp/3p1qPN/q1Rn4/1Q5r b - - 0 1 illegal: Other
k1Q1r1rr/p3n3/1PRr2N1/PK2b1r1/4Pbb1/2q2Qq1/2n2PP1/3NBB1q b - - 0 1 legal: proof: e4 e5 b4 g5 h4 gxh4 a4 b5 c4 bxc4 Ra3 f5 d4 f4 Re3 fxe3 dxe5 Qg5 Nf3 Qf6 Ng1 Qd8 Ke2 c5 b5 h5 b6 d5 a5 Kd7 e6+ Kc6 e7 Kb7 e8Q d4 Ba3 d3+ Ke1 e2 Kd2 e1Q+ Kc1 h3 Kb2 h4 Qg4 c3+ Kb3 d2 Ka4 d1R Bd3 h2 Ne2 c4 Qe7+ Qc7 Qed7 h3 Rf1 h1Q Nd4 h2 Kb5 c2 Nf3 c1R Rg1 c3 Qd8 c2 Bd6 Qec3 Bg3 Bg7 Ng5 Na6 Qf3 Nb4 Qe7 Bg4 Qf5 Re8 Nf7 Ka8 Qec5 Be5 Bf1 Ne7 Qf3 Rd6 Bf4 Rhg8 Nh8 Rcd1 Be3 c1B Bd2 Nc2 Be1 Bcf4 Ng6 Qb8 Qc8 R1d3 Qe2 Rh3 Qd3 Rh5 Qe3 Rg5 Qf3 Qa3 Nc3 Qa1 Nd1 Qc3 Qf5 Qbc7 Qe2 Qg3 Qf3 Qc3 Be2 Na1 Nb2 Qe3 Bb4 Qa3 Rf1 Qg1 Rc1 h1R Be1 Rhh8 Rc6 Qc3 Bf1 Qh1 Nd1 Nc2 Qc8+
q2q4/1QQP2Bn/1r1P2b1/2P2k1n/npb5/1P1R3n/r1B1P1NK/b1rq3R b - - 0 1 illegal: Other
1K5b/Q1n3r1/qR1pBP2/p1b3b1/B2PN3/PP1bqk2/R1nQ2P1/1br2q2 b - - 1 2 illegal: Other
2n3KQ/P3q2N/P1Q3kP/bqqn2pr/b3n1P1/3Br2R/2b1p1P1/R3bN2 b - - 0 1 illegal: Other
B1Qq2r1/1P1b2Pn/r1RNn1kp/b1Qp4/1qnP1b1R/4N1qP/K4P2/7b b - - 1 2 legal: proof: b4 c5 e4 f5 a4 b5 axb5 cxb4 d3 fxe4 h3 g5 Bf4 g4 Bh2 g3 Ra5 gxh2 Ra3 Nh6 Ra1 Ng8 Kd2 Kf7 Kc1 a5 Kb2 e5 g4 d5 c4 a4 c5 e3 g5 h6 c6 b3 c7 e2 d4 e1Q b6 a3+ Kc1 a2 Kb2 e4 Bc4 e3 Qg4 e2 Qg3 Ra6 Qd6 Bd7 c8Q Nf6 Nc3 Kg6 Qdc5 Nc6 Rc1 Bd6 Nd1 Rg8 Nf3 Nh7 Bb5 Bf4 Ne3 Qb4 Rhg1 h1B Nd2 e1B Ndc4 a1N Nd6 Ne5 Kb1 b2 Bc6 Nb3 Ba8 Nc4 b7 Qa3 Rg4 Ba5 Rh4 Qb4 Q5c6 Nc5 Ka2 Ne6 Qc5 Qc3 Ng4 Qg3 Ne3 Kg7 g6 Kf6 g7 Kg5 Kb3 Kg6 Rc2 b1Q+ Rb2 Qd1+ Ka2 Qe1 Rb6 Qb4 Rc6
1r4Rb/6bn/B3NPNr/pq2PQ1q/P2K2k1/3bR3/p2PP1r1/1nr1n2Q b - - 0 1 illegal: Other
1q4qr/1RPb2p1/q3k3/2N3Kn/NPp4r/b1r1PrP1/2P5/Q2bnBQR b - - 1 2 illegal: No extended proof kernel
2qb1K2/P5pB/2P1r2Q/3qb3/b2Bq1Pr/p1P3nk/1R1rN2P/1N2n1Qr b - - 0 1 illegal: No proof kernel
1Q1b3b/1b3Kp1/r3p2N/1k1P1B1P/q1n4q/2q1Pp2/PQRrnP1r/2N1R3 b - - 0 2 illegal: Other
2b2n2/R1b1N1p1/Q2Ppn1r/1rp2Pq1/KnRq1PN1/5P2/6PQ/b3kB1q b - - 0 1 illegal: Other
rr1QbkR1/R1p1b3/1p2B3/Qnb1P3/P1nPr1q1/1P2Bp2/P3n2b/5KN1 b - - 0 1 illegal: Other
b7/BQ5r/Pnr4b/2Np2qB/1Kn1q3/1P1P1p1b/2PP1pNR/Q1b2k1b b - - 0 1 illegal: No proof kernel
3Q2b1/1pr5/1k1K2bb/Np2B2n/4Pn2/1P1Rr2q/P2PpP1Q/N1n1bR1q b - - 0 1 illegal: No proof kernel
2q1q2k/1R1ppp1p/n2P4/Kb1PrN1P/bP6/1QPB2R1/n1Q1rN2/q2b4 b - - 1 2 legal: proof: d4 c5 a4 b5 f4 bxa4 f5 c4 b3 c3 Bb2 cxb2 f6 gxf6 e3 f5 d5 f4 Kd2 Bg7 Ke1 Bd4 exd4 Ba6 Qc1 Bb7 Qd1 Bc8 Kd2 Kf8 Kc3 Kg7 Kb4 a5+ Kb5 f3 h4 f2 g4 a3 d6 a2 h5 a4 d5 a3 g5 Qe8 b4 Ba6+ Ka4 Bb5+ Kb3 Nf6 g6 Na6 Qd4 Rg8 Qc5 Ne4 Bd3 f1B Nd2 b1B Nc4 Be2 Ne3 Bd1 Rh3 Kh8 Rg3 Nc3 Nf5 Rc8 Qe3 Rc4 Qe2 Re4 Nh3 Re5 Qg2 Ne2 Nf2 Nc1+ Kc3 Ba4 Kc4 Re2 c3 Bbc2 Qf3 Bc6 Qf4 B2a4 Qd2 Rg7 Qc2 Rg8 Qb3 Re5 Rb1 a1Q Rb2 Qa2 Rb1 Qe2 Ra1 Qe3 Ra2 Qa7 Ra1 Qb7 Ra2 Qbc8 Ra1 Nb8 Kc5 a2 Kb6 Na6 Ka5 Bcb5 Nh6 Kg7 Nf5+ Kf6 g7 Re2 Rb1 a1Q Rb2 Na2 Rc2 Rh8 g8Q Re5 Qg4 Rg8 Qe2 Rg4 Rb2 Rge4 Qec2 Re2 Rg4 Qc6 Rc4 Qcc8 Rc7 Rd2 Rb7 Rde2 Nh4 Kg7 Nf5+ Kh8 Rb1 Rd2 Rc1 Be2 Rh1 Bd1 Rh3 Rde2 Rg3
bNn4r/5p1P/1p2P3/Qnpb2K1/B1qrNPP1/r1Bp4/b1kP1R2/5Qq1 b - - 0 2 illegal: No possible last move
2R1K3/p5BP/1P1bQpr1/6p1/1QP1pB2/1bk1PPN1/2nn2qN/1r2nrq1 b - - 0 2 legal: proof: a4 c5 d4 cxd4 e3 b5 axb5 g5 f3 g4 Be2 g3 Bd3 Nf6 Bf1 Ng8 b4 Qc7 Ra3 Kd8 Rd3 Ke8 Rd2 Qd8 Rf2 gxf2+ Kd2 Ba6 g4 Bc8 g5 Qc7 g6 Bh6 Bd3 Bf8 g7 Qd8 Bg6 hxg6 Kd3 f1R Kc4 e5 Kd5 Ke7 h4 d3 b6 g5 b5 d2 h5 Nf6+ Kc5 Ke6+ Kc4 d5+ Kc3 d4+ Kc4 d3 g8Q Na6 h6 Rb8 c3 Ne4 b7 Nb4 h7 Nc2 Qg7 Bd6 Qe1 d1Q Ne2 d2 Ng3 Rg8 Qh6+ Rg6 Bb2 Qc1 Rh2 d1N Nd2 Ndf2 Ba1 Nd3 Qh3+ Kf6 Kd5 Be6+ Kc6 Bb3 Qg4 Qa5 Kd7 Qa2 Bb2 Qca1 Qb1 Nde1 b6 Rc8 b8B Rc6 Nc4 Nd2 Ke8 e4 Ne5 Rc4 Qh3 Rb4 Ng4+ Ke6 Rg2 Kd5 Nh2 Kc4 Qe6+ Kd3 c4 Rb5 Bg7 f6 Qb2 Qd1 Qa3 Kc3 Re2 Bb4 Bf4 Bd6 Rg2 Qe2 Rg1 Qf2 Rg2 Qg1 Rf2 Nb1 Rd2 Qb2 Rd5 Nd2 Rc5 Nd4 Qe5 Ra5 Kd8 Nb1 Kd7 Qbg2 Qe8 Nd2 Rc8 Ndc2 Qe6 Ra6 Qc5 Ra1 Ke8 Rb1 Qb4+
3k3n/2b5/K2p2p1/NRrr1qP1/pBQpbQbP/P1N1b3/P4Pn1/1q3B2 b - - 1 2 legal: proof: e4 f5 g4 fxe4 d4 c5 g5 cxd4 Nd2 Qa5 Rb1 Qa3 bxa3 h5 Rb3 Kf7 Rg3 Ke8 Rg4 hxg4 Ke2 e5 c4 a5 h4 b5 c5 a4 c6 b4 c7 b3 Bh3 g6 Qf1 e3 Kd3 b2 Kc4 b1B Kb5 e2 Qe1 e4 Rh2 e3 Qd1 e1B Rh1 e2 Qc2 g3 Nb3 g2 Nd2 Na6 Bg4 Nh6 Nb3 Nb4 Qc5 Nc2 Rh3 Nf7 Bb2 Bd2 Qc6 e1Q Na1 Ne3 Bf3 Ra5+ Kb6 Rd5 Qb7 Bd6 Bc3 Be4 Ka6 Qb1 Ne2 g1Q Nb3 Ng2 Bb4 Be3 Nc3 Qgc1 Rg3 Qcc2 Na5 Rh7 Bd1 Nh8 Be2 Re7 Rf3 Ree5 Rf5 Rc5 Bf1 Red5 Rf3 Be7 Rf6 d6 Rf5 Bd8 Re5+ Be6 c8Q Qd3+ Qb5+ Ke7 Qb8 Bc7 Qc4 Kd7 Qf8 Bg4 Qf4 Kd8 Rf5 Bef3 Rf7 Qf5 Re7 Be4 Rh7 Bb8 Rb7 Bc7 Rb5
1nRN1b2/np1bb3/P3q1n1/1r1p1Q2/3q3p/B1p3BR/PP1P1b1P/K5Qk b - - 1 3 illegal: Other
3B3r/krnKpp2/3Q4/1p1PR2p/1Pr1N2P/1b1pPPbp/3q2qQ/6RB b - - 0 6 legal: proof: d4 d5 h4 g5 a4 b5 c3 g4 a5 Nd7 Qd3 Nb6 Qh3 gxh3 Nd2 Qd6 Ne4 Qd7 Nc5 Qd8 c4 dxc4 Nd3 cxd3 axb6 Qd6 Rb1 Qd7 Ra1 Qd8 Kd2 Kd7 Kc3 Kc6 Kb4 Kb7 Kc5 a5 g4 h5 b4 a4 f3 a3 g5 a2 g6 Rb8 g7 Nf6 g8Q Ne8 Qg3 Bg7 Qh2 Be6 Bg2 Be5 Be3 Bg3 Re1 Bb3 d5 a1R Bf4 Ka8 b7+ Ka7 Kc6 Qc8 Be5 Qg4 Bf4 Qg8 Kd7 c5 Bc7 c4 Ba5 c3 Bd8 Bf2 Qd6 c2 Qh2 c1Q Qd6 Qc3 Qh2 Rc8 b8Q+ Ka6 Qbd6+ Ka7 e3 Rc6 Ne2 Qd2 Rhg1 Nc7 Ng3 Rc4 Ne4 Bg3 Bh1 Ra6 Rd1 Rb6 Rg2 Rb7 Rdg1 Bf4 Rg5 Bg3 Rf5 Qg7 Rg5 Qgb2 Rf5 Qg2 Rg5 Qbd2 Re5
1K2B3/3Pprn1/1pbN1pRq/bk1b1P2/2q1PQ2/qP2B1n1/4q1P1/2Qr1Rb1 b - - 0 1 legal: proof: h4 g5 c4 gxh4 c5 a5 b3 a4 c6 a3 Nc3 dxc6 Na4 c5 Nb2 axb2 Rh3 c4 Rh2 Nc6 Rh1 Nb8 f4 Kd7 Kf2 Kc6 Kf3 b1B d4 h5 a4 c3 a5 b6 d5+ Kb5 f5 c5 Kf4 c4 Ke5 h3 a6 c2 e3 h4 d6 h2 a7 h3 d7 Na6 Qe1 Bb7 Qd2 Bg7+ Kf4 Nc5 Qd3 Nf6 Ke5 Nfe4+ Kf4 Bd5 Bd2 c1Q Qe2 Qc7+ Kf3 Rh7 Qd1 Ng3+ Kg4 Qa3 Bd3 Bc3 Nf3 f6 Ng5 Ne6 Be2 Rf7 Ne4 Ba5 Qc1 Ng7 Kf3 Qc8 Rf1 h1Q Kf4 h2 Bh5 c3 Nd6+ Kc5 Rf3 c2 e4 Qd1 Ke3 h1Q Kd3 Kc6 Kd4 Qe2 Be3 Qg8 Bg6 Qh6 Rf4 Qc8 Rg4 Qca6 Bh5 Rh8 Rg6 Rh7 Nb7 Kb5 a8Q Rh8 Qb8 Rc8 Qb2 c1B Qf4 Bd3 Qc3 Bd2 Rf1 Be1 Qcc7 Bf2 Qc1 Bg1 Nd6+ Kb4 Qb2 Rc1 Qc2 Bc6 Qb1 Rd1 Qc1 Bcb5 Kd5 Ba4 Nb5 Bc4+ Kc6 Bd5+ Kc7 Qc4+ Kb8 Qe2 Nd6 Bac6 Rg4 Qac4 Bg6 Rf8+ Be8 Rf7 Nb7 Kb5 Rg5 Bf2 Rg6 Bg1 Nd6+
BBQNK1b1/1q1r1p1b/1NP3q1/p2P4/2R1p1p1/rQ2PPP1/r5k1/n2qb2n b - - 0 1 illegal: No proof kernel
2rb2K1/qn1pP1Np/Rk1PpQ2/3PRb2/qp3NqP/4Prn1/1n5b/1B4Q1 b - - 0 1 illegal: Other
1NrB3r/1B3Q1p/PR3bp1/p1ppp2P/P4p2/3bkPn1/K1P2p1Q/5Rnq b - - 2 4 illegal: Other
rB1rr2b/nrpN3b/1rPk2PN/2Pn1K1b/1R3R2/P1qB3P/4q2q/6N1 b - - 0 1 illegal: No possible last move, all moves rejected
2R1b1bK/rp3RPP/5q1R/1nr3pn/bqk1N3/rb1N1B2/1P1BP1P1/n7 b - - 0 2 illegal: No proof kernel forced: bxLB
2nNrn1r/2N3P1/p1R2n2/1Bn2k2/Pp3P1q/nP2NPpR/5B1n/4r1bK b - - 0 1 legal: proof: h4 g5 d4 gxh4 g4 f5 g5 b6 d5 c6 Qd4 cxd5 Qg4 fxg4 f4 d4 Kf2 Bb7 Ke1 Bf3 exf3 Bh6 Kf2 Bg7 Ke1 Bf8 Kf2 Kf7 Kg2 Ke6 c4 h5 a4 d5 g6 g3 b3 b5 g7 d3 c5 d4 c6 a6 c7 b4 c8N d2 Nh3 d1R Ba3 d3 Nd6 d2 Nf5 Nd7 Rh2 Ngf6 Nc3 Re1 Nd5 d1N Bc4 Nf2 Rb1 N2g4 Rh1 Nh2 Nh6 Rc8 Ng4 Kf5 Rb2 e5 Rf2 e4 Rc2 e3 Nhf2 e2 Rc3 Bc5 Rd3 Nf8 Ne4 Bg1 Bb5 Qe7 Bc1 Re8 Rd2 Nf1 Rd1 N6d7 Ndf6 Nb6 Rd8 Rd1 Bc4 e1N+ Kh3 Nc8 Be3 Nc2 Kg2 Na3 Rh2 h3+ Kh1 h4 Nd5 Re1 Rd6 Qd8 Rb2 h2 Bb5 Qg5 Nc5 Qh6 Kg2 h1N Re2 Nf2 Nb6 Ne4 Nb7 Nc5 Nd8 Qg5 Nd5 h3+ Kh1 h2 Rc6 Qh6 Kg2 h1N Nc7 Nf2 Rb2 Nfe4 Ra2 Bh2 Kh1 Bg1+ Rh2 Nf6 Bf2 Qh4 Rh3 Nh2 Ne3+
1rkn1b2/1N1n1nP1/2R2N1n/3p2pp/N3n3/2rPPb1n/BP4PR/2n1BK2 b - - 0 1 legal: proof: h4 c5 f4 g5 a4 b5 h5 bxa4 d3 c4 Rh3 c3 Qd2 cxd2+ Kf2 e5 Rh2 Qf6 Rh1 Qg6 hxg6 exf4 c4 Kd8 g7 d1N+ Ke1 d5 c5 a5 e3 h5 c6 f5 Bd2 a3 Ne2 a4 Nbc3 a2 Rh4 f3 Ne4 f4 Bc3 a3 Nd6 f2+ Kd2 f3 Rd4 Nd7 Nc4 Rb8 Na5 Nh6 Rf4 Nf7 Rb1 a1N Rc1 a2 Ng1 Nc2 Be5 a1N Rd4 Nb4 Be2 f1N+ Ke1 Nb3 Bg3 Nf2 Rh4 Nh2 Bd1 Nhg4 Kf1 Nh3 Be1 f2 Ne2 Ngh6 Ng3 Rg8 Rc5 Nc1 c7+ Ke7 Rc6 Nf4 Ne4 Nde5 Ng3 Kd7 Rb6 Bd6 Bc2 Nbc6 Rh1 Nh3 Ne4 Rd8 Ra6 Bf8 Bb3 Re8 Bc4 Re6 Bb3 Ncd8 Ba2 Rc6 Rh2 Rc5 Nc3 Rc4 Na4 Rc3 Rc6 Nb3 Ke2 f1N Rc5 Nfd2 Nb7 Ne4 Rc6 Nc1+ Kf1 Ke7 Bf2 Bg4 c8N+ Kd7 Ncd6 Bd1 Ne8 Bf3 Rf6 Kc8 Be1 Nd7 Ra6 Nf4 Nf6 Nh3 Rc6+
r6q/1r1qN2P/4p2p/n1N1b2P/PRPk3B/2r1RB2/npbPK1Np/6r1 b - - 0 1 illegal: No proof kernel
B3B2r/2p1nN1q/KNb3rR/P4p1b/2Pp1q2/2k1p1p1/Bn3PPP/2n4R b - - 0 3 illegal: No proof kernel
2R5/p3p3/K1P2b1b/2pbb2n/2BP3q/2ppPbPn/1rP3k1/1RNBB1N1 b - - 0 1 illegal: No proof kernel
2qn2q1/KnpN1Ppq/1Pr5/RpP2b1q/R1B1p1PB/1q6/rPNk4/1Nb5 b - - 0 1 illegal: Other
b1n1Brn1/3Ppb2/K6R/1N3pn1/p2rPB2/P1P3Np/k2pNP1R/2b2rq1 b - - 0 1 illegal: No proof kernel
2q5/Rk2rpP1/3P1Q2/5Q1b/KbR4P/b1r5/1bPBP2N/b1R2rnq b - - 0 1 legal: proof: g4 h5 a4 hxg4 a5 c6 a6 Rh6 axb7 Rh8 f4 Rh3 b4 Rb3 b5 Na6 b6 Nb8 Bg2 Rh3 Bd5 Rh6 Bc4 Rh8 Bb5 cxb5 d4 g5 d5 e5 Nd2 g3 Ra3 g4 Ra4 Na6 Nb3 Ke7 Qd3 Kf6 Nd4 exd4 Ra1 Nc5 Qf5+ Kg7 Qe6 Ne4 Qxd7 Ng5 fxg5 Kg6 Kd1 a5 b8R b4 h4 b3 b7 g2 Qc7 Kf5 g6 Ke4 g7 b2 Be3 b1Q+ Kd2 d3 Kc3 d2 Qd6 d1R Bf4 g3 Kc4 a4 Be5 a3 Qf6 a2 Qa6 Nh6 Qb6 Ra3 Qc7 Bg4 Bd6 Rf1 Rh3 Nf5 Rh1 Nd4 Qc5 Nf3 Qc7 Qc8 Qc5 Bh5 Nh3 g1B Bf4 g2 Bh6 Bd4 Bd2 Bb2 Kb4 Rc3 Ka4 g1B Nf2+ Ke5 Qd4+ Kd6 Ng4 Kc7 Qf6 Bb4 Nh2 Re8 d6+ Kc6 Ra8 Re7 b8Q Bgc5 Ra7 Ng1 Qa8+ Kb6 Qe4 B4a3 Qg4 Bcb4 Qgf5 Qe1 Rc1 a1B Rc7 Qd1 Rc4 Kb7 Bg5 Qd5 Bd2 Nh3 Rg1 Qh1 Rgg4 Ng1 Rc7+ Kb8 Rgc4 Ka8 Ra7+ Kb8 Ra6 Kb7 Ra7+
rrnqq3/k1r2b2/1r4P1/NRbB1Q2/3P2n1/1P1Q2P1/PR2Q3/1K1bq2q b - - 0 1 legal: proof: h4 a5 c4 d5 cxd5 g5 hxg5 b5 f4 e5 b3 exf4 Na3 a4 Nc4 bxc4 Bb2 a3 Rh2 axb2 Rh5 Qe7 Rh1 Qd8 d4 Kd7 Kd2 b1Q e4 c5 d6 Kc6 e5 Kb6 g3 f5 d7 h5 g6 c3+ Ke1 h4 e6 c2 Kd2 c1R e7 c4 e8Q h3 Bg2 h2 Nf3 c3+ Ke2 c2 Kd2 Nc6 Nh4 f3 Qf1 f4 Qfe2 f2 Q2e5 f1B Qd6 f3 Rg1 h1Q Qde7 f2 Q8f7 Ne5 Qd5 Ng4 Qb5+ Ka7 Bd5 Bc4 Rg2 f1Q Qe2 Qf7 Nf5 Bc5 Nd6 Ne7 Nb7 Qfe8 Na5 Ba6 Rh2 Nc8 Rh5 Rf1 Kc3 Qe1+ Kb2 c1R Rb1 Rf6 Re5 Rb6 Rg5 Qde7 d8Q Bb7 Qdd7 Q7d8 Qf5 Rc3 Bg8 Bf3 Bd5 Rc1 Qed3 Bd1 Ka1 Rc2 Rb2 Rg8 Kb1 Rab8 Bb7 Bf7 Qe2 Bb4 Rh5 Rc7 Bd5 Bc5 Qbd3 Ra8 Qg2 Qb5 Bf3 Bf8 Be2 Qdd7 Qgf1 Nd6 Q5f2 Be7 Rg5 Rgb8 Bf3 Qd8 Q2e2 Qbe8 Rb5 Nc8 Bd5 Bc5 Qff5
1K6/PP1R1Pk1/2R2RQ1/q1Nrnr2/prnb1n2/6PP/8/QB1rr1nb b - - 0 1 illegal: No proof kernel
bqB5/5b1R/1k2r3/P2p2rB/KBP1P1r1/2QPn1bP/1r5b/3rN1rQ b - - 0 1 illegal: No possible last move
q5nK/Pb2b1Q1/1n3nPb/1RP2rQ1/1p1PRB2/2rk1pQ1/b1NP4/r7 b - - 0 1 legal: proof: f4 d5 g4 h5 b4 c5 g5 cxb4 e3 a5 Nc3 d4 exd4 g6 Nd5 b3 Nb4 axb4 Be2 Ra3 f5 Ra5 fxg6 Ra8 Bg4 hxg4 Kf2 Kd7 Ke3 b6 h4 Ke6 Ke4 f5+ Kf4 Kd5 a4 Kc4 Rh2 e5+ Ke3 e4 Ra3 g3 h5 b2 c3 b1N Nf3 b3 h6 g2 Kf4 g1R Ke5 b5 h7 e3 a5 f4 g7 e2 g6 e1B a6 b2 a7 Nd7+ Kf5 Bh4 Ra5 Na3 Ne1 b1B+ Nc2 Bhe7 Rh4 Bb7 Qf3 Ba2 Qg3 Rc8 Rg4 f3 Re4 Kd3 c4 Rc7 Ke6 Qa8 Kf7 Ndf6 Bb2 Nb1 Ba3 Nc3 Bd6 b4 Bf4 Ra1 Rb5 Ncd5 Qg4 Rc6 Qg3 Ra6 c5 Ra3 Ke6 Nh6 g8Q Rc3 Qf7 Nh5 Qf5 Ng8 Kf7 Nhf6 Qfg4 Bh6 Qh5 Bg5 Kg7 Nb6 Qhh4 Nh6 Qhg4 Rd8 h8Q Rd5 Qh7 Nhg8 Kh8 Bh6 Qg5 Rf5 Qg7
4qbK1/1B1P1n1r/R1b2N2/1p4pP/qn1N1PP1/3Q1Q2/1r1rr2P/4kNq1 b - - 0 1 illegal: Other
1R1nq1Qn/p1P4R/3rP3/3pQ2r/4b1q1/1KPqr3/1P1k1P2/Bq1R2bN b - - 0 1 illegal: Other
5K2/PP2B1P1/2r1QNqk/r2bn1pp/Q5NP/b3r3/1N3PRp/q3br2 b - - 0 1 illegal: No possible last move
5Q1n/rnP1r1pP/3Bp2P/b2BK3/4b3/1N1R1Q1n/b1p1PqP1/2k1B1qb b - - 0 1 illegal: Other
1rn1nB2/4r1R1/P1N2N1K/r2P4/pBP1n2P/q4Bpn/N5Pq/2knb3 b - - 0 1 illegal: No proof kernel
rr5R/p1p1n1bQ/B1qq2B1/PkP2n1n/1p2n1P1/1PR3P1/1B1p2R1/6Kb b - - 2 3 legal: proof: c4 e5 d4 exd4 g3 h5 Nc3 dxc3 Nh3 h4 Nf4 g5 f3 h3 Ng2 g4 fxg4 hxg2 Kf2 g1N e4 d5 h4 Kd7 a4 Kc6 h5 b5 e5 f5 e6 d4 h6 d3 e7 c2 e8B+ Nd7 a5 b4 h7 d2 b3 f4 Qe2 f3 Bb2 c1Q Be5 Bb7 Ra3 Ne7 Rh5 Nh3+ Ke3 f2 Bb2 Bg7 Qd3 Ng5 Ra1 Ne4 Bg6 Ndf6 Rh2 Qd6 Rg2 Rhb8 h8R Nh5 Kf3 Qc3 Rc1 Kc5 Be2 f1N Rc2 Kc6 c5 Ne3 Rc1 N3f5 Rc2 Qcf6 Rc3 Ng5+ Kf2 Ne4+ Kg1 Qfe6 Qc4 Qf6 Qg8 Qfe6 Rd3 Kb5 Qh7 Qc6 Bf1 Qed6 Rc3+ Qd3 Bc1 Qe6 Rc8 Kc6 Be2 Nf2 Re8 Qa6 Rh2 Qd6 Bc4 Qb5 Bb2 Qa6 Be6 Qb6 Bc8 Kb5 Rd8 Bh1 Rh8 Ne4 Rg2 Qbc6 Ba6+
2rk4/4Q1RK/1bP3PP/1b1rrR2/P1r1P3/r3BrbB/1rQB4/1n2b3 b - - 0 1 legal: proof: e4 a5 d4 e5 b4 c5 f3 d5 Bd2 axb4 dxc5 d4 Bg5 Qd5 exd5 e4 Bc1 e3 g4 g5 Qd2 Nd7 Nh3 Ndf6 Qd1 Ne4 fxe4 Bh6 Na3 Bf8 Nc4 h6 Nf4 gxf4 g5 h5 Ne5 Rb8 Ng4 hxg4 Ba6 Ra8 Bb5+ Ke7 Bf1 Ke8 Ke2 f5 Kd3 b5 h4 f3 c4 f2 h5 f4 d6 b3 d7+ Kd8 g6 e2 c6 e1B c5 f3 a3 g3 h6 b2 Bh3 f1R Bg2 b1R Be3 f2 Qb3 b4 Rh4 Bd6 Rh5 Rb2 Bf3 g2 Rg5 g1B Qc4 b3 Bf4 Ne7 Bh1 Ba6 Rf5 Nd5 Bd2 Nc3 Bg2 Bb5 Bh3 Bg3 a4 Rc8 Rd1 Nb1 Be3 Re8 c7+ Ke7 d8B+ Kd7 Bf4 Re5 Bd2 Ra2 Bh4 b2 c6+ Ke8 Bhg5 Ra3+ Ke2 d3+ Ke3 Re7 Bf4 Re5 Kd4 Ke7 Bde3 d2 Qc2 Ke8 Rc1 d1R+ Bd2 Nc3 Be3 b1R Rf7 Rb2 Rg7 Re7 Ra1 Nb1 Kd5 Re5+ Kd6 Rc5+ Ke6 Re5+ Kf6 Rc1 Qd3 Rc4 Qc2 Rd8 c8Q Rd5 Qf5 Rc8 Ra2 Kd8 Qg5 Rad3 Ra1 Ra3 Bf4 Nc3 Rd1 Nb1 Rh7 Re3 Bb4 Bd2 Ra7 Ra3 Kg7+ Ke8 Re7+ Kd8 Kh7 Re5 Rc1 Rd1 Qf6 f1R Rg7+ Re7 Qe5 Bb6 Be3 Rf5 Qc5 Ree5 Ba5 Bc3 Bb4 Rdd4 Rf1 Bce1 Bbd2 Rdd5 Qb4 Rh5 Rff7 Rhf5 Qc5 Rf1 Rf5 Rf3 Qe7+
2Q1nQ2/Q3Pnp1/2KP3n/1NP4R/N2Rp3/1rr1k1P1/p2p1Pq1/3r1q2 b - - 0 1 illegal: Other
6r1/4krnP/RKn2b1Q/2Pp4/2b2RPB/r2PPq1b/1R2r3/R1N2rn1 b - - 0 1 legal: proof: b4 g5 f4 c5 g3 h5 Bh3 h4 Bf5 e6 Nc3 exf5 bxc5 b5 Ne4 b4 g4 b3 axb3 gxf4 b4 f3 b5 f4 Ng3 hxg3 h4 a5 c4 d5 e3 f5 d3 g2 Kd2 f2 Kc3 f1B Kd4 a4 b6 f3 b7 f2 c6 a3 h5 a2 c7 f4 c5 f3 h6 Ra3 h7 Ne7 Nh3 g1N Bb2 Nf5+ Ke5 Ke7 Rh2 Ng7 Nf4 Bh3 Ne2 f1R Nc1 Rg8 Rf2 Bd7 c8R Bb5 Bd4 Bc4 Rc6 Qe8 Rb2 f2 Ra6 Qf7 Qf3 Re1 Qf4 f1R Qh6 Re2 Bc3 Qf3 Be1 Kd7 Bf2 Be7 Bh4 Kd8 Rb4 Bf6+ Kd6 Nc6 Rb2 Ke8 Kc7 Ke7 b8R Rff2 R8b4 Rf1 Rab1 a1R Kb6 R1a2 Ra8 Ra7 Ra1 R2a3 Ra4 Ke6 Rab4 Rf7 Ra6 Ke7 Rba4 Ba2 Rd4 Bc4 Rf4
1r1nn3/1PBB1n2/2q1Pbp1/k2q3Q/3BrR2/3P2P1/1nPbQn2/3R2Kn b - - 0 1 legal: proof: e4 c5 a4 h5 g3 b5 axb5 d5 Nc3 dxe4 Nd5 h4 Nf4 h3 Ng2 hxg2 Ke2 e5 b4 e3 f3 e4 b6 Na6 b5 Bb7 Nh3 Nb8 Nf2 Bc6 Nd3 Bb7 Nb4 cxb4 Ke1 e2 Kf2 Bd5 Ke3 Bb7 Kf4 e3 Kg4 Be4 fxe4 Qd3 Kf3 Qd8 h4 Kd7 h5 g1N+ Kg2 e1N+ Kh2 f5 e5 a5 b7 Kc7 e6 Kb6 h6 e2 h7 b3 Rb1 b2 Bh3 a4 Ra1 b1Q Bg2 f4 Bd5 f3 Ba2 a3 Bb2 f2 Qc1 g6 Bd4+ Ka5 b6 Qd5 Bb3 a2 Bg7 Nd3 Qb2 e1N Bd4 Nc6 b8B Bb4 b7 Nde5 Bc5 N1d3 Qc1 Nd8 Bcd6 Nb2 d3 Nef7 Qg5 Nf6 Ba7 Nh3 Qd2 Rb8 Rd1 Ne8 Qc1 Bd2 Rh1 Qc6 Bd5 f1N+ Kg2 Nf2 Kg1 Rf8 h8Q Nh2 Qd1 Nhg4 Rh4 Nh1 Qh5 Ngf2 Rf4 Qc1 Rb1 a1B Bd4 Rh8 Qe2 Rh4 Bc4 Qd5 Bb5 Rg4 Bd7 Qc6 Rf6 Re4 Qh5+ Qd5 Qe1 Qd1 Rf4 Qe2 Rd1 Qf3 Qh4 Qc6 Qe2 Qh5 Qh2 Qhd5 Qhh5 Na4 B4c5 Bf6 Bd4 Nb2 Bc7+
r2bb2r/Q5P1/3P4/2rR1BPp/Pk3bQ1/Qp3nbP/1B2b1K1/1r3n1R b - - 0 1 legal: proof: c4 a5 f4 b5 b4 axb4 Kf2 g5 fxg5 b3 Bb2 d6 Bc1 b4 Ke1 Qd7 d4 d5 Na3 Qb5 cxb5 e6 Nc4 dxc4 d5 e5 Nf3 Be6 Nd4 exd4 Ba3 Bf5 Bc1 Bc8 Kf2 Ke7 a4 Kd6 e4 Kc5 g4 h5 g6 f5 g5 c3 g7 c2 h3 f4 d6 d3 e5 b2 b6 b1R e6 d2 b7 f3 e7 b3 e8Q Nh6 Rh2 Nd7 b8Q Be7 Qd8 Nf5 Bb2 c1B Be5 Ng3 Bd3 Nf1 Kg1 f2+ Kh1 c6 Qa7+ Kb4 Ba6 c5 Qg8 c4 Ra2 c3 Be2 c2 Qf7 Bd8 Bf4 Ne5 Qad7 Nf3 Qg4 Bd7 Kg2 Be8 Bd3 Bb2 Ra1 c1B Rh1 Be5 Qe2 d1R Qa2 Be3 Bf5 Rdc1 Qa7 Rc5 Bh2+ B3f4 Bg3 Rb2 Rd1 Rb1 Qb2 N1h2 Rd5 f1B+ Kf2 Bfb5 Kg2 Nf1 Qa2 Be2 Qa3+ Kc3 Bh2 Bg3 Bg1 Bef4 Be3 Kc4 Bc1 Kc3 Bb2+ Kc4 Qa1 Kb4 Qa3+
n5K1/3p1rP1/br1Pp3/b1PRB2r/1P2P2Q/b2k1BQR/1b4bR/2n1q1r1 b - - 0 1 legal: proof: b4 c5 a4 g5 f4 gxf4 Nc3 b5 axb5 c4 g4 h6 Nf3 Na6 Ne4 Nb8 Nd4 h5 g5 Qb6 Nb3 cxb3 Nf2 Qd8 Ng4 hxg4 Kf2 a5 h4 f5 e4 Kf7 d4 Ke6 c4 a4 b6 b2 d5+ Ke5 d6 b1R g6 e6 h5 a3 h6 f3 Kg3 f2 b7 a2 h7 f4+ Kh2 f3 Kg3 Nc6 b8Q Ba6 Be2 f1B Rh3 f2 Qc2 Kd4 Kf4 g3 Qc8 g2 Qc7 g1B Qa5 Qh4+ Bg4 Nge7 Rh2 Nc8 Qb5 Bh6+ Qg5 Rb8 g7 Na5 Rh3 Bg2 Qb3 f1R+ Rf3 Nb6 Bd2 Rbe1 Rd1 a1B Qa3 Nb3 Be3+ Kc3 Ke5 Na8 Kf6 Rb7 Kf7 Kc2 Bd2 Bb6 c5 Ba5 Bc3 Rb6 Rd5 Rg1 Qh5 Ref1 Bd4 Bc1 Qg5 Qe1 Qd8 Rg8 h8R Rf2 Rhh5 Rh8 Rh2 Rh5 Kg8 Bc3 Re3 Rf7 Reh3 Ba1 Qh4 Kd2 Qa4 Ba3 Bd1 Nc1 Qb3 B1b2 Qbg3 Nc7 Be2 Na8 Bf3 Kd3 Be5+
4Rb2/pP1P1n1r/PpbB4/1P1k1K1Q/3R1Bn1/3r1B2/1Pn2b1Q/r2nqb2 b - - 0 1 illegal: Other
1N1q1n2/1R1QpK2/b4PpR/2q1PPr1/1n1Rk1Pr/NQ1pr1b1/1n3rP1/8 b - - 0 1 illegal: Other
2n1K3/PP4k1/2pQp1n1/bbP3nq/1BQ2qrq/2p3pP/BN2P3/2N3rB b - - 0 1 illegal: No proof kernel
4Q2n/4bP1B/p1rp4/K1P2Bpk/3Pp3/PP1Qqnb1/2pNb3/2Bqr1N1 b - - 0 1 illegal: No proof kernel
R6R/P6N/1rr2p1p/2qRb1pR/p5QP/kB3Kn1/P2rpPP1/1nb2n1b b - - 0 1 illegal: Other
k1nn1B1K/1b1PN3/1N3P1Q/PbP3Br/3b1r2/1Bbr2qP/1qB5/1b6 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 gxh5 c5 b4 axb4 e4 f5 exf5 c4 a4 Rh7 h3 Rh8 Ra3 d5 Rb3 Qb6 Rh2 Qd4 Rf2 Qd3 Rf4 cxb3 c4 Qd4 c5 Qd3 Rc4 dxc4 Bb2 Qd5 Bc1 Qd8 Kf2 Kd7 Ke3 Kc6 Ke4 g5 d4 b5 e6 Kb7 Ke5 b2 h6 c3 e7 c2 e8B g4 h7 g3 a5 g2 d5 b3 d6 b4 d7 Qh4 Be2 Qg3+ Bf4 c1Q Bg6 Nc6+ Ke6 Nd8+ Ke5 Ne7 Na3 b1B Kf6 b2 Qd6 b3 Bh6 Bd3 Bf4 b1R Bg5 b2 Bd1 Bb5 Ne2 g1B Nc3 Rb8 Ba4 Ka8 Bb3 Bb7 Nd5 Nc8 Ne7 Ra1 Qd2 b1B Nc4 Ra2 Qf4 Rd2 Qh4 Rd3 Qh6 Rg8 h8B Qb2+ Ne5 Bd4 Bg7 Rh8 Bh7 Be3 Kg6 Bg1 Nc4 Bd4 f6 Bc3 Nf5 Bd6 Bf8 Bde5 Kg7 Bed4 Ne7 B5c6 Bf5 Bb5 Qg6 Rh5 Qh6 Bg2 Kh7 Rb6 Kh8 Bb7 Bh7 Re6 Bg6 Re4 Bh7 Rf4 Be4 Rd2 Bec2 Rd3 Nb6+
BK1nN1q1/1prP1P2/3p2q1/1P4N1/rBPP1pr1/3R4/3rN3/N1kbr3 b - - 0 1 legal: proof: a4 a5 b4 c5 f4 h5 e4 f5 g4 c4 g5 c3 e5 Nc6 Ra3 Kf7 Qg4 d6 b5 Nd4 Rb3 Bd7 Bc4+ Ne6 Rb4 axb4 Be2 b3 Qh3 Nc7 Bg4 Nd5 Qe3 Ndf6 Qc5 Ne4 Qa3 Nef6 gxf6 hxg4 Qb2 cxb2 e6+ Ke8 exd7+ Kf7 Nc3 e5 Ne4 Be7 Nc3 e4 Ke2 Qb6 Nd5 Bd8 Nc3 Qa5 Kf1 Bb6 Nb1 Bd4 Ke1 Be5 fxe5 Qd8 Ke2 Kg6 Ke3 Kg5 Kd4 Kf4 Kd5 g5 c4 g3 h4 g2 d4+ e3 e6 g4 a5 g3 e7 Nh6 e8N Nf7 Nd2 b1B a6 e2 a7 Ke3 h5 e1R h6 f4 h7 b2 Ke6 Bc2 Rh2 b1R Ba3 Bd1 Ne2 g1R Rh3 Rb2 Nb3 Rd2 Bb4 Qb8 Na1 Nd8+ Ke7 Kd3 Rh5 g2 Rg5 Rf8 h8N Rg8 Nf7 Rh8 Nb3 Kc2 Rg3 Rh5 Re3 Rc5 Ng5 Rc7 Na1+ Kb1 Ng3 Kc1 f7 Ne6 Rd3 Qc8 Nf6 Qg8 Ne8 Rh1 Ng7 g1Q Ne8 Rh4 Ne2+ Kb2 Nh7 Q1g6 Ng5 Nd8 Rc3 Rg4 Rd3 Rac8 a8B Rc6 Rc3 R8c7 Rf3 Ra6 Rd3 Ne6 Re3 Ra4 Rd3 Nc5 Kd8 Kb1 Ng1 Kc1 Ne2+ Kb2 Ng3 Kc1 Nh1 Nb3 Ng3 Na5 Nf3 Rc5 Ng5 Nc6+ Kc7 Nd8+ Kb8 Rc7 Ne2+
q2NBr2/Nb1RB1K1/1q1P2P1/1pk1PB2/b4r2/2b1p1Pn/bP2p3/nB6 b - - 0 1 illegal: No proof kernel
7r/n3r3/kP1bq1R1/1Rnp1bPB/1PB2R2/qRP2npp/3P2N1/3K1n2 b - - 0 1 legal: proof: e4 c5 b4 e5 a4 b5 axb5 c4 f4 Qa5 fxe5 Bd6 Qf3 Qd8 Qb3 Bf8 g4 cxb3 Bb2 h5 Bd4 h4 Bf2 Nf6 Bg3 Ng8 Na3 g6 Nc4 g5 Ne3 Nh6 Nf5 hxg3 h4 Ng8 h5 Bd6 Nh4 gxh4 Rh3 Bc5 Rh1 Bf8 e6 a5 g5 d5 e5 f5 e7 Kd7 e8B+ Kc7 b6+ Kb7 c3 h3 e6 b2 h6 b1N h7 f4 e7 f3 Ba4 f2+ Kd1 Qe8 Bc4 f1N Bc2 a4 B2b3 a3 Be2 a2 Rh2 Nd7 Nf3 Nc5 Nh4 Na3 Rb1 a1Q Rh1 Bf5 Bbc4 Nc2 Ng2 Ne1 Bh5 Qa3 Rb3 Nf3 Rh2 Qc6 e8R Ra7 Re6 Bd6 Rg6 Ne7 Rh1 Nc8 Rg1 Rd8 h8R Qe8 Rf8 Qe6 Rff6 Re8 Rf8 Re7 Rf7 Ra8 Rf8 Na7 Rc8 Na4 Rc5 Rh8 Rb5 Ka6 Rh1 Nc5 Rg1 N1h2 Re1 Nf1 Re4 Nd3 Rh4 Nc5 Rf4
5RbB/q1rBp1R1/1q1b1n1p/2Pr4/P2p3P/B1PP1q2/1rB3rn/1Nk1K3 b - - 0 1 legal: proof: e4 a5 b4 f5 f4 g5 Qg4 c6 Nc3 fxe4 f5 c5 bxc5 Qc7 Qf4 gxf4 Nd5 Qd8 Nb4 axb4 a4 Kf7 h4 Kf6 g4 Ke5 g5 Kd4 d3 Kc3 g6 b5 f6 d5 f7 f3 g7 b3 Kd1 h6 Rh3 d4 Be2 b4 Ke1 e3 Rg3 b2 Rg2 b1Q Ra2 b3 Rg5 b2 Rf5 f2+ Kf1 Nd7 Nf3 Ndf6 Ng1 Qd7 Re5 Ng4 Bf3 e2+ Kg2 f1Q+ Kg3 e1R Rg5 Qa7 Rd5 Re5 Rd8 Nh2 Bc6 Nf6 g8B Bg7 f8B Rd5 Nf3 Be6 Bd7 Rc8 Nd2 Rc7 Rc8 Qh3+ Kf2 Qf3+ Ke1 Bf7 Rb8 Be6 Bf7 Rg8 Re8 Bh8 Rd8 Rg4 Bg7 Rg2 Bh5 Bg8 Rf8 Qa1 Bhg4 b1R Bge6 Rb2 Nb1+ Kb4 c3+ Kb3 Bh3 Kc2 Bhg4 Nh7 Be5 Bf6 Bh5 Bg5 Bh8 Nf6 Rf7 Bf4 Rg7 Bd6 Bhg4 Kb3 Bh5 Rbd2 Ba3 Qb2 Bhg4 Kc2 Ra1 Kc1 Ra2 Qh3 Bd1 Qf3 Bc2 Rdf2 Bb4 Qb3 Rb2 Rd2 Ba3 Qbb6 Bd1 Qba5 Rb8+ Rb2 Bc2 Q5b6 Rf8
2R5/q1ppp1R1/3pb3/1NPb1BrN/1k1KP2b/P3rbPN/1P1N2n1/1qn5 b - - 0 1 illegal: Other
1nb5/b2nP2p/qN1qp1r1/1N6/2p3n1/1PpNPK2/1RP1PpBB/1rk3N1 b - - 0 1 illegal: Other
Q3B1n1/1q2rb1P/BbP4R/5b2/P3qbq1/K1prQ1B1/n1PpP3/1k3Q2 b - - 0 1 illegal: No proof kernel
q2Q2q1/1nKp4/1pPP2rb/nkp1p3/b2bP1N1/RP6/2PRrR1Q/5n1R b - - 0 4 illegal: Other
3b1r2/3PPQb1/R1N3r1/2p2Bqn/2R1r2P/2P2N1K/br2P2P/r2nk2r b - - 0 1 legal: proof: b4 a5 a4 axb4 f4 d5 g3 h5 c3 e5 fxe5 d4 Ba3 bxa3 Qb3 d3 Qc2 h4 gxh4 dxc2 Kf2 Kd7 Kg3 Ke6 d4 Kf5 e6 Ke4 a5 Ke3 d5 c1B d6 g5 a6 f5 a7 c5 Ra2 b5 Rd2 b4 Rd5 b3 Bh3 b2 Kg2 a2 Rd1 a1R Rd5 g4 Rd4 f4 Nd2 b1R Ne4 f3+ Kg3 f2 Rb4 f1R Rc4 Qg5 Ra4 Na6 Nd2 Bg7 Ra5 Nf6 Bg2 Nb4 Ra2 Rb2 Ndf3 Rf8 Ra4 Nbd5 Nd4 Kd2 Nb5 Ne3 Bf3 Ke1 Be4 Nd1 Nd4 Nh5+ Kg2 g3 d7 Ba6 Kh3 g2 Rc4 Rae8 a8Q Bb7 Qd8 Bd5 Qe7 R1f6 Bf5 Rg6 Nc6 Bf4 Ra4 Ba2 Rc4 Bc7 Qf7 Bd8 Nf3+ Kf2 Ra4 g1R Ra6 Re1 Rg1 Rf1 Rg4 Rh1 Nd2 Ke1 Rc4 Rh8 Qe7 Ref8 Qf7 Rhh6 e7 Re6 Bb1 Rhg6 Bf5 Re4 Nf3+
nQrn2k1/P1B2B2/1b3P1n/rP1p3K/bn1rP3/2P3P1/1R5b/2Rn1N1b b - - 0 1 illegal: No proof kernel
N1b5/3rnqBp/Q1pbrP2/P2bPPBR/2R3p1/6pP/3PK1p1/2k4q b - - 0 1 illegal: No proof kernel
3qN2N/r3b3/3b1p1Q/1nB1PK2/Rr2P3/PPP2P1n/1b3n1b/1krn1b1R b - - 0 1 illegal: No proof kernel
3knn2/2p1b3/KP2P3/BnPPqb2/r4pNP/4qn2/2qR1QPr/1Rb3N1 b - - 0 1 illegal: No proof kernel
3QRK2/2p3Pp/2B1P1Pq/q3r2n/r1P4b/1RP3nn/nBP1b3/1kbb3N b - - 0 1 illegal: Other
5R2/1NKPb1pr/p1n1P1b1/3Q1n2/P4Pp1/1PB5/q1P1Rqr1/nr1bN2k b - - 0 1 illegal: No proof kernel
5nbr/b2B1Pn1/1p3rp1/Q3K2P/r1RP4/1bPN2R1/2NP2Pp/2kn1r1q b - - 0 1 illegal: No proof kernel
3Q1rnb/3Knr2/1R1N1N1p/3rR3/1nPb1p2/kPp1P1BP/3P1Pp1/3q1n2 b - - 0 2 illegal: No proof kernel
b3rn2/3p2bq/P1Pnp3/3PNbrQ/K1R1q2r/1P2P1Np/4kB1P/1r1R3q b - - 0 1 illegal: No possible last move
N2B1nR1/2Q1n1b1/2qnPp1P/2pn1P2/kn1prn1N/5P1p/2PP3K/1b3Br1 b - - 0 1 illegal: Other
5rq1/1R1nb3/np1k4/NP1bpp1q/4B1p1/2P1BPrp/P3PrPK/3qQ1N1 b - - 1 4 illegal: Other
1R1QKB2/Pb6/3pk3/3qn1np/rr1Pbb2/p1bRpNPp/P3P2P/5bN1 b - - 0 4 illegal: Other
7r/BBb2K1P/p1b1pppN/1r4P1/4PPpk/P2q2Pn/2Rr1N2/Q3nrr1 b - - 5 7 illegal: Other
1B1k2b1/P2prb2/R1B2q1b/6p1/N3p3/3Pq1bn/PR1nPP1P/3qnN1K b - - 0 1 illegal: No proof kernel
1rRn1N2/1Np5/3n4/p1pPq2P/P2N1PkP/2bP2np/1QK5/rB2qq2 b - - 0 1 illegal: No proof kernel
1KQ3r1/QR3qk1/B1P3P1/2Ppp1b1/3P1pNn/n5q1/r3PP1r/N3nr2 b - - 1 3 legal: proof: b4 c5 bxc5 g5 h4 gxh4 c4 b6 a4 Bb7 d3 a6 Bb2 a5 Ra3 Ra7 Rb3 Ra8 Rb4 axb4 a5 b3 a6 Bf3 Bg7 Bb7 axb7 b2 Be5 Nc6 Bb8 Nxb8 Kd2 d5 Kc3 e5 Kb4 f5 Kb5 Kf7 g4 h5 g5 h3 d4 h2 c6 f4 g6+ Kg7 c5 h4 Nh3 Qg5 Qc2 Ra2 Qf5 Nh6 Nd2 b1R+ Nb3 Na6 b8Q Be7 Qe4 Nf5 Qd6 Nb4 Bg2 Rf1 Rg1 h1R Na5 Nc2 Ka6 b5 Kb7 b4 Qd7 Rg8 Nb3 Rh2 Na1 Qg3 Ng5 h3 Nh7 b3 Nf6 b2 Ng4 Nh4 Qef5 b1N Be4 Nba3 Bd3 Ne1 Qc8 Bg5 Ba6 Rg2 Kc7 h2 Kb8 h1Q Qe6 Rh2 Qd7+ Be7 Qa7 Qe4 Rg2 Qf5 Rg1 Qf7 Rh1 Bg5 Rg1 Qf3 Rg3 Qg2 Rb3 Qg3 Rb7
1q1N4/2PP1pQ1/1rN2P1N/1k3P1r/4PKn1/3q2nP/1q1p2b1/3RnnbR b - - 0 1 illegal: No proof kernel
r1r1q1qR/pp2Br2/PP1rrB2/n7/R2nP3/Q3K1B1/P2P1P1b/5rk1 b - - 0 2 illegal: No proof kernel
1bQn1q2/n1p4R/bp2N2P/PP1n4/b3K1P1/RNq1P3/5QPk/5bn1 b - - 0 1 legal: proof: f4 a5 d4 d5 c4 h5 b4 g5 fxg5 e6 h3 Ra6 e3 Rh6 gxh6 Rc6 b5 Rd6 Ba3 Rd7 Bb4 axb4 Bd3 Rd6 Be4 dxc4 d5 Rc6 d6 Rc5 Bf3 Rg5 Bd5 Rg4 hxg4 exd5 Ke2 f5 Kf3 Kf7 a4 Kf6 d7 Kg5 a5 f4 Qc2 b3 Rh2 d4 Qe4 d3 Nd2 h4 Qh7 c3 Rh3 c2 Rb1 c1N Rh2 b2 Nf1 h3 Ng3 Kh4 Ke4 f3 Ra1 b1N Kf5 f2 Nh1 f1B Ra3 d2 Qg7 d1B Ne2 Ba4 Qh8 Nc6 Qb2 Bc5 Ra1 Qf8+ Ke4 Na7 d8Q+ Ne7 Ra2 Nc3+ Ke5 Nd5 Qd7 Nec6+ Ke4 Nd8 Nf4 Ne2 Ng3 Ng1 Rh1 h2 Nge2 Bb6 Nd4 Kg3 Nb3 Nh3 Nd2 Bd3+ Ke5 Ne7 Rc1 h1Q Qb4 Qe1 Ng6 Bf1 Nf4 Nac6+ Ke4 Kh2 Nb3 Ng1 Rd1 Ba7 Ra3 b6 Qbd2 Ba6 Qf2 Qc3 Qc8 Bb8 Ne6 Na7 Rd7 Nd5 Rh7
3Rn1Nr/rP5N/2r2R2/r2b1P2/6Q1/P1P1nkPK/1n1P3b/rQ1nn1q1 b - - 0 1 illegal: No proof kernel
1N2r3/1P2pk2/bQ2PPn1/1P1K1b1n/4p3/1pQ1P1q1/n2P4/1RrRb2R b - - 0 1 legal: proof: b4 b5 f4 d5 g4 f5 a4 c5 e3 h5 Nc3 Qa5 Ne4 dxe4 Bh3 Qc7 Ba3 Qe5 axb5 a5 b6 Ra7 b5 Rc7 Bb4 cxb4 fxe5 f4 Bg2 Rc6 Bf3 Rf6 Be2 Rf5 gxf5 Ba6 Bf3 Bc8 Bg4 hxg4 Ke2 g5 h4 f3+ Kf2 g3+ Kf1 a4 c4 g4 c5 g2+ Kf2 a3 h5 a2 c6 b3 h6 g3+ Ke1 f2+ Ke2 Ba6 c7 Nf6 c8R+ Kf7 b7 Nh5 h7 Nc6 f6 Bh6 Qc2 f1B+ Kd1 Nb4 Ne2 g1N Nd4 g2 Qc3 Nh3 Nc6 g1Q Rb1 a1R Nb8 Re8 h8Q Qg3 Kc1 Bg5 Kb2 Bh4 Rd1 Na2 Rc6 Rc8 Qd8 N3f4 Qb6 Bh3 Ka3 Re8 Rc4 Nc1+ Kb4 Na2+ Kc5 Ng6 Kd5 Bf5 Rb1 Qf3 Ra4 Be1 Ra5 Qg3 Rd1 Nc1 Ra2 Rb1 Rb2 Ra1 Rb1 Na2 Rb2 Rc1 Rb1 Qh4 Rh3 Qf4 Rh1 Qg3 e6+
3q3b/K1B2pPP/Q1r5/1PpPnPNr/4nqP1/N1Pb3Q/2p3rk/3q4 b - - 1 2 illegal: No proof kernel
1b5q/2Pp1q2/5P2/1p1nqR1N/1PrP2K1/2NP4/b1k1PpPQ/1brb2Q1 b - - 0 1 illegal: Other
1Q2q2N/B1K2B1q/k2N4/R4Q1p/2R1B2n/2r1n3/3pq1RQ/nn3QQn b - - 0 1 legal: proof: b4 b5 d4 e5 f4 exf4 g3 c5 a3 cxd4 a4 a5 axb5 a4 Bd2 f3 Bc1 Ra5 bxa5 Qb6 Be3 Qc7 Bc1 Qd8 Nh3 f5 Kd2 g5 Ra3 f4 Ng1 f2 Ra2 Bd6 Ra1 Bb7 Bh3 Bf3 Bf1 Bg4 h3 f3 Rh2 Bf4+ gxf4 Be6 Rh1 g4 Bb2 g3 Bc1 Bg4 hxg4 Qg5 Ra2 Qe7 Ra1 Qd8 Kd3 d5 c4 Kd7 e4 Kc7 b6+ Kb7 a6+ Kc6 e5 h5 f5 a3 f6 g2 c5 Kb5 g5 a2 e6 Nd7 b7 Qc7 b8Q+ Nb6 a7 Rh6 a8B Qf7 e7 Ka6 e8Q Rh7 c6 Nc8 c7 Rg7 g6 Na7 c8Q+ Ka5 Qee2 Qe8 f7 Nb5 f8Q Ne7 Nh3 g1Q Nc3 Qg4 Qcf5 Na3 Ng5 Nb1 Rh4 Ka6 Nb5 Rh7 g7 Ng6 g8R Rc7 Bg2 f1N Nd6 f2 Be3 Ng3 Ngf7 f1Q Be4 Nh1 Nh8 Qg5 Qg7 Qh6 Qd2 Qf2 Qf1 Qh7 Qc2 Qf3 Qh2 Rc2 Rf4 Nh4 Qgg1 Rc7 Rg2 Qg4 Qg6 Qge6 Qf5 Rc3+ Ke2 Q6e7 Bf2 d3+ Ke3 Qe5 Rfg4 Q5e7 Kf4 d4 Bad5 Qe6 Bb3 Qc4 Be3 d2 Bf2 d3 Ba7 Qcb5 Bc4 d1N Bf7 Nf3 Rh4 d2 Rhg4 Qe2 Rh4 Qc8 Rhg4 Nh4 Ke5 Qcg8 Ke6 Ne3 Kd7 Rd3 Kc7 Qe8 Ba8 Ra3 Rc4 Rc3 Be4 Na3 Rb1 a1N Rb5 Nb1 Ra5#
2Q4K/3b1q2/1N2Q1N1/1QQ1pbp1/rR1q1R2/2B1qQnN/4p1k1/b1R3B1 b - - 0 1 legal: proof: c4 b5 b4 f5 e4 fxe4 a4 d5 axb5 a6 cxd5 Bd7 b6 Nc6 b5 Bh3 b7 Nb8 b6 Bc8 Bb5+ Kf7 g4 axb5 f4 Ra3 f5 Ke8 f6 Rf3 Na3 Rf2 Nb1 Rf5 gxf5 g5 h4 Nd7 h5 Ne5 Qg4 Kf7 Qd1 Ng6 hxg6+ Ke8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 b8Q e6 f7 e3 b7 b4 f6 b3 g7 b2 Ra4 e2 Nh3 h4 Nc3 b1B Bb2 Ne7 g8Q Bg7 f8Q Bh6 f7 Kd7 Ke5 c5 Kf6 c4 d4 Bc2 d6 Kc6 d7 Bf5 Nd5 c3 Qg1 c2 Nb6 c1Q Bc3 Qe3 d5+ Kc5 d6 Qc7 d8B Bd7 Rf4 Kc6 Nc8 Kd5 Qg3 Qc4 Bb6 Rh7 Rc1 Qb4 Nf2 h3 Qf3+ Qbe4 Ba7 h2 Nh3 h1Q Bad4 Qf1 Nb6+ Kc6 Qbe8 Rg7 b8R Rh7 Na4 Kd5 Rb4 Qff2 Qb8 Qf1 Qfc8 Rh8 f8N Bg7+ Kf7 Rh4 Ng6 Rg4 Bb6 Bd4 Qgf8 e5 Kg7 Qff2 Kh8 Qf1 Bd2 Ba1 Bc3 Qff2 Qg3 Q4d4 Qf3+ Be4 Bc5 Nf5 Qb5 Ng3 Ba7+ Ke6 Qcc5 Bf5 Qfc6 Qff3 Nb6 Qfd5 Qe8+ Kf6 Qg8 Qf7 Qf3 Qdc4 Nc8 Qe8 Rb3 Qf2 Qfb7 Be6 Rd4 Bd3 d7 Kf5 d8Q Bd7 Qcc6 Rf4 Qdf6+ Kg4 Qfe6+ Bf5 Bc5 Qa4 Nb6 Qf7 Qgc8 Qb4 Re4 Kf3 Be3 Qc4 Qcc5 Kg2 Rb2 Qf3 Bg1 Qe3 Q7c6 Rf1 Rg4+ Qd5 Rbb1 Rf4 Rb2 Re4 Rf4 Ra4 Rbb4 Qde4 Rf3 Q4d4 Qe4 Nh5 Qg4+ Ng3 Rf4 Qee4 Qh5 Qee3 Qf3+
1N5Q/4q2Q/2Q1NR1q/5N1q/3bbBrk/rNr3N1/5rB1/n1n1RRKb b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 f4 Kf7 Kf2 Kf6 d4 c5 g4 e5 d6 h5 b6 h3 b7 e4 d5 e3+ Kf3 h2 Kg2 b3 d7 h4 d6 e2 Ra3 e1R Ne2 h3+ Kf2 b2 Ra7 c4 Qd3 c3 Bg2 c2 Ng3 Nh6 Nd2 b1B Ra6 Qe7 d8N Rg8 d7+ Nc6 b8N Nf7 Ne6 Nd4 d8Q Nb3 Q8d5 Na1 Nb3 Bb7 Qc6 Re2+ Kf1 Ne5 g5+ Kf7 g6+ Kf6 Rg1 h1Q g7 h2 Qde4 Nd3 Ned4+ Kf7 f6 Ra7 Be3 Nc1 Ndf5 Kg6 Rb6 Ra3 f7+ Qe6 Bd2 Bc5 f8N+ Kf6 Qd3 Bd4 Qdc3 Qd6 Ne6 Qe7 Qb2 Re8 g8Q Rf2+ Ke1 Ba8 Qh7 Rg8 Rf1 Rg4 Rb5 Qg1 Re5 h1Q Re4 Qgh2 Be3 Be5 Qd4 Qh6 Qd8 Q1h5 Qdh8+ Qhg7 Bd2 Bd4 Re5 Rf3 Re2 Rc3 Be3 Bb7 Kf2 Ba8 Ree1 Bb7 Q8g8 Qgh6 Kg1 Ba8 Nfg7 Bb7 f5 Ba8 Qgh8 Bb7 Nf4+ Kg5 f6 Kh4 f7 Ba8 f8R Bb7 Bf2 Rf3 Be3 Rf2 Nfe6 Ba8 Qd6 Be4 Rf6 Ba2 Nbc5 Bad5 Bf4 Ba8 Bh3 Bh1 Nb3 Bae4 Qd5 Nd3 Qa8 c1R Qc6 Rc3 Bg2 Nc1 N7f5+
1r4k1/4nq2/rQ3r2/1bB1b3/qRNNrBKN/3RqB1Q/2RN4/2n2nN1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Kf3 c5 g4 h5 d4 e5 g5 c4 g6+ Kg7 b6 h3 b7 c3 d6 c2 d7 h2 d5 b3 d6 h4 Nd2 b2 f6+ Kh6 g7 Kh7 f7 b1N Ra3 e4+ Kg4 e3 f4 h3 f5 e2 f6 e1R Be2 Ne7 g8R Na6 b8N Qa5 Bf3 Bg7 f8B Nc5 f7 Nb3 Nc6 Qa4+ Nd4 Ba6 d8N Bb5 d7 Ra6 Nc6 Be5 d8Q Re3 Na5 Re4+ Kg5 Rf6 Qf1 Ra6 Nac4 Rf6 Bb2 c1Q Qb6 Qc3 Bh6 Nc1 Rb8 Qe3+ Kh5 Re8 f8N+ Kg8 Rd3 Rc8 Rb7 Re8 Bf4 Rb8 Qd8 Ra6 Ba3 Rf6 Kg4 Ra6 N2b3 Nd2 Bc5 Rf6 Qg2 Nf1 Qa5 Ra6 Ng6 Rf6 Nh4 Ra6 Nge2 Rf6 Rg1 h1R Nbd2 h2 Qh3 Ra6 Rg2 Rg1 Qb6 h1Q Rg3 Rg2 Ng1 Rf2 Rg2 Qh2 Kg5 Qg3+ Kh5 Qg7 Rh2 Qf8 Kg4 Qf7 Nb1 Ra2 Rc2 Ra3 Nbd2 Ra1 Qa7 Rf6 Qa5 Qb3 Qb4 Raa6 Rb6 Qa4 Qa5 Bc6 Rb4 Bb5 Qb6
1BRR1nR1/Q2R1BNb/r4R1k/B4r2/2r4b/n1q1b2n/N2QK3/1Q1n2r1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 f4 Kg7 g4 h5 d6 c5 d5 e5 b6 c4 f6+ Kh6 d7 e4 b7 c3 d6 c2 f7 e3 f5 h3 f6 h2 Ra3 h4 Rd3 h3 Ke2 b3 Bd2 c1R Ba5 b2 Nc3 b1N Nf3 Qc7 d8Q Ne7 d7 Na3 Na2 Qc3 Ng5 Ng6 Ne6 Bc5 f8R Ra6 f7 Rg8 Re8 Rf8 Ng7 Bb6 Rg1 h1N Bg2 h2 Be4 Ba7 Rf1 Nf2 Rd6 h1R g5+ Kh7 Qb3 Nd1 Qb1 Rg1 Rff6 Bd4 Qdb6 Bc5 d8Q Bf5 Rd2 Nd7 b8B Bd4 Qa7 Nf4+ Kf3 Bb6 g6+ Kh6 Re7 Nh3 Ke2 Qc6 Rd5 Rc4 Rc5 Qc7 Rcc6 Qe5 Rc8 Qc3 Bc2 Rh8 Be4 Nf8 Qd2 Rg8 Rd7 Rg5 Kf3 e2+ Bd3 e1B Ke2 Bh4 Be4 Nh7 f8R Be3 Rfd8 Rf8 Nh5 Rg1 g7+ Bg6 g8R Rf7 Ng7 Nf8 Rf4 Bh7 Bg6 Rf5 Rf3 Rb5 Rf6 Rf5 Bf7+
R6r/1Rn3BR/b3n1bB/3q1Nk1/n1R3n1/Q3Nn2/QN3R1Q/1Kb2qb1 b - - 0 1 illegal: No possible last move
1NRqQ1K1/4B3/2b3nQ/3RBnqN/B3N1b1/3b1N2/bnN5/1kn1rQb1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Rh3 a4 Rh1 Ra5 bxa5 Bh6 Ra2 Bg7 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 g4 c5 a6 h5 b6 h3 d6 f3 d5 h4 b7 h2 g5 f2 d7 a3 Ke6 f4 Kf7 h3 g6 f3 a7 a2 a8Q Ne7 g7 Nbc6 b8N Nf5 g8N Nce7 d6 Ng6 Nd2+ Kc3 e4 c4 e5 Rh5 Rb1 a1Q e6 Qaa5 e7 Qe5 Qe2 Kc2 e8Q c3 Qaa6 Qea5 Bg2 f1N Bb2 f2 Nf6 N1e3 Qf1 Nc4 Rd1 Bg7 Ba1 Nb2 Nde4 Rh6 Nh5 Bd4 Kg8 Be3 Qe1 f1B Rd5 Bd3 Nf3 Bg1 Qf1 Rh7 Qb6 Re7 Qe3 Re5 Qh6 Qg5 d8N Re7 Nc5 Re1 d7 Kb1 Ne4 c2 Ndc6 c1N d8B Bd7 Be7 Qd8 Nb4 Bc8 Kh7 Be6 Nc2 Bf7 Rc5 Ba2 Rc3 Bc5 Rg1 h1B Rc4 h2 Kg8 Bb6 Bh3 Ba7 Rg2 Bg1 Rd2 Bg2 Rd1 h1B Bg4 Ne3 Bd7 Bh3 Ba4 Bg4 Rd2 Nf5 Rd1 Be2 Rd5 Bg2 Rc8 Bb5 Qe2 Bc6 Qf2 Bf1 Qg2 Bd3 Qf1 Nc4 Baf6 Nb2 Be5
Nn2Q3/2RQK3/N2Q3r/1rnB1b2/N1Qkb1B1/4bn1B/bn3r2/2n3RQ b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 h4 g3 b3 Nf6 h5 Bb4 Ba3 Be7 Bc5 Kd7 Bd4 Qg8 Bf2 Qg6 hxg6 Bb7 Qc2 gxf2+ Kd1 Ke8 g4 Ba6 g5 Ng8 Kc1 Bc8 Qd1 Bf8 Kc2 Ke7 Kc3 Kd6 Kd4 a5 e4 f5 b6 h5 g7 h4 b7 c6 e5+ Kc7 g6 Kb6 b4 h3 e6 c5+ Ke5 h2 d4 c4 e7 c3 Kd6 a4 b5 f3 Nh3 c2 Rg1 h1B Ng5 c1N Bh3 f1R Nc3 f4 Ne6 a3 Nc7 Nd3 Rc1 Nf6 g8B f2 g7 a2 Bge6 a1N g8B f3 Beg4 Bg7 e8Q Bh6 Ke7 Nfd7 d6 Nb2 d5 Kc5 b6 Ra5 Na8 Be3 Qf7 Rh6 Na4+ Kb4 Rc7 Rb5 Qe8 Nc5 d7 Kc4 d8Q Nb3 Qd6 Bf5 Qdd7 Nc1 d6+ Be6 Qb3+ Kd4 Bf7 Bf5 Bd5 Rd1 Qc6 f1B d7 f2 d8Q Bc4 Qdd7 f1N Qc2 Nd2 Qcd6 Nba6 b8Q Rf1 b7 Rf2 Qa7 Nf3 b8N Ba2 Qb7 Nb4 Na6 Nc6+ Kf8 Nb8 Ke7 Ne5 Qe2 Bhe4 Qf1 Nf3 Qbc6 Rc2 Qg2 Rf2 Qh1 N5b3 Qc2 Nc5 Qc4+
1N1b1Kbr/8/rB1NR1Q1/3RR2Q/R3r1nr/1QRr1b2/2Bbkr2/2Bn4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 d4 Ke7 Kd2 Kd6 Kd3 c5 Kc4 f5 b4 h5 e4 a5 g6 f4 b6 h4 b5 f3 b7 h3 b6 g2 g7 h2 Qc2 f2 Nc3 a4 Qb3 a3 Nge2 Na6 b8R g1R b7 Be6 Re8 g3 b8Q+ Nc7 Q8b5 Nf6 g8Q a2 Qg6 Bg8 Re5 g2 Qa5 Ra6 Nb5+ Kd7 Re6 Ng4 e5 Be7 d6 Bd8 d5 Rh4 Ned4 Ra8 Be2 f1R Bd1 Rf2 Bc2 Re1 Rf1 g1R Nc6 Rg3 Rg1 Rgf3 Rg3 h1B Rh3 Rd3 Nb8+ Kc8 d7+ Kb7 d6 Nd5 Re3 Nc3 Rh3 Nd1 Rf3 Rde3 Kd5 c4 Kc5 Re4 Rc3 R1e3 Kd5 Rd3+ Kc5 Bc7 d8B Bf3 d7 Ra6 Nd6+ Ka7 Rb1 a1R Qab5 R1a4 Ra1 Rb4 Ra4 Rh8 Bf6 Ba5 d8R Bb6+ Kc6 Ba5+ Kd7 Bc7 Qd5 Kb6 Rf8 Bd8 Ke8 Re1 Bfg5 Reh1 Rf5 R1h4 Qa8 Kc5 Kf8 Kd4 Qa7+ Bb6 Qah7 Bd8 Qhh5 Bc7 Be7 Bd8 Ba3 Ke3 Bc1+ Ke2 Beg5 Rb5 Bge3 Rbd5 Bb6 R5d4 Ref6 Rf4 e6 Re4 e7 Rd5 Rd3 c3 e8R Rd4 Ree5 Rd5 Bb1 c2 Rc3 Rd4 Rfe6 Rd3 Bd2 c1B Bc2 Bc7 Bh6 Bd2 Rd5 Bd8 Rfe5 Be1 Bc1 Bd2 Qe8 Nde3 Qef7 Nd1 Qfg6
3N2K1/1B6/1n2r2b/QQp3N1/3RR3/brkNBN2/B1q3qn/q2rNQn1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 e4 Kd6 Ke2 Ke5 Kf3 Kd4 Kf4 f5 b6 a5 e5 h5 g5 c5 e6 a4 e7 a3 e8N a2 d6 h4 d7 h3 b7 h2 g6 Be7 g7 Bf6 b5 Qb6 d8Q+ Nd7 b8N Rh7 Na3 Qa7 b6 Qa5 b7 Qa7 Nd6 Bh4 Nc6+ Kd5 b8Q Rh6 d4 Qa4 Ba6 Re6 Ne5 Ngf6 g8B Nb6 Ngf3 g1B Be3 g2 Qf1 Ng4 Rd1 a1Q Nc2 Bf6 Nce1 Qc2 N5d3 Bh8 Kg5 f4 Bc8 Ra3 Nf7+ Kc4 d5 Bb2 d6 Kc3 d7 Rb3 Bb7 Ba3 Kf5 Bf2 N7g5 g1N Qdc7 Bg3 Qe8 Bf2 d8N Bh4 Qb5 Bf2 Ne5 f3 Bf7 Bh4 Bg8 f2 Ne5f3 Bg3 Rd2 Bf4 Re2 Re7 Kg6 Re4 Kh7 Re6 Nh3 Bh6 Nhg5 Nh3 Rg1 h1Q Rg3 Nh2 Rg4 Ng1 Rd4 Qg2 Kh8 Re4 Bgd5 Re6 Kg8 Rb1 Ba2 Rb3 Bf4 Rf6 Ree4 Re6 Qe2 f1R Be3 Rf2 Qf1 Rd2 Qb8 Rd1 Qa7 Qcb2 Qaa4 Qbc2 Qaa5+
b1n1Q3/3r2R1/KRqpqNr1/2Rn2RQ/1B6/1bQk4/BR1Nq3/1b1r3B b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kd2 h5 Kd3 a5 Kc4 e5 b4 Ke7 b6 Kd6 Kb5 Kd5 c4+ Ke4 b7 d6 c5 a4 f6 h4 f7 h3 f8Q a3 c6 a2 c7 d3 g7 f3 g6 d2 Qe8 f2 Bg2+ Kd3 Nc3 f1Q Ba3 e4 Qh5 d1B Rc1 a1R Nf3 h2 Nd5 e3 Nd2 e2 Rg1 e1Q Rc5 h1B Nf6 Bf5 c8Q Ne7 g8B Qc7 g7 Rh7 Ba2 Nbc6 b8R Na7+ Ka6 Bb3 g8R Qc6+ Rb6 Qfe2 b5 Rd1 Rg7 Nd5 Bb4 Qe6 Bf3 Q1e2 R1g5 Rh6 Qc7 Rd8 Qc8 Bg2 Qc7 Rg6 Qc8 Bf1 Bh1 Bg2 Qc7 Q6e3 Qc8 Bfe4 Qch3 Nc8 Qg3 Rd7 Qge5 Qg4 Qc3+ Ke2 Nb1 Qc7 Qd8 Ba4 Rb7 Ndb6 Nd2 Bb1 Ba5 Qe6 Qe8 Bac2 Rb8 Ba8 Rb7 Nd5 b6 Bb3 Rb8 Ba4 b7 Qf3 Rb5 Qg4 Rb2 Bb3 Bb4 Nce7 Rc8 Qc5 Rc7 Nc8 b8R Qf3 Qe5+ Kd3 Rb6 Qe2 Rcc6 Qd4 Rcc2 Qc3 Rc1 Qc7 Rc5 Qc6 Qc3+
Q5K1/Rq2rN2/1B1B1b1N/5B1r/1B3Qpr/2RnBr1Q/1b4rn/k4qN1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 Bf5 axb5 Bc2 f4 Bg6 h4 e6 f5 exf5 h5 fxg4 hxg6 g3 b4 Kd7 e4 Kd6 Ke2 Ke5 Kf3 Kd4 Kg4 c5 Kh5 f5 e5 a5 b6 g2 d6 c4 b5 c3 g7 f4 d7 a4 b7 f3 e6 f2 e7 c2 e8Q a3 b6 a2 Bd3 f1Q Bf5 Nc6 b8B Ra7 b7 Nb4 Bd6 Nf6+ Kh6 Qc7 b8Q Nd3 d8B Be7 g8N Ng4+ Kg7 h5 Nh6 h4 Qf3 h3 Na3 h2 Nc4 Qb7 Ne5 Ra3 Kf7 Bf6+ B8e7 Rc3 Qh3 Rc7 Ng8 Rh4 Nh6 Rc3 Kg8 Ra3 Rb1 a1B Nef7 Bb2 Ra1 Kc4 Bb4 Kb3 Qf4 Ra7 Bed6 Rh5 Nf3 g1R Qa8 Rg2 Ng1 Rh4 Ra5 Rh5 Rc5 Ka2 Rc6 Ka1 Rc3 Ne1 d4 Nd3 Bd2 c1R d5 Re1 Be3 Ra3 Bdc5 Ree2 d6 Re1 d7 Rh4 Bf2 Re7 d8B Rh5 Bd6 Rh4 Nf3 Rh5 Rg1 h1R Bdb6 Nh2 Bfe3 g4 Nd4 Rf2 Ne2 Rf3 Rg2 Rg1 Rf2 Rg2 Ng1 Rh4 Rfc2 Ra5 Rc7 Qd5 Ra7 Qb7 Ba3 Rae5 Rc3 Rd5 Bh7 Rdh5 Bf5 Rd7 Bdb4 Rc7 Bd6 Re7 Bab4+
2R1Q3/1RKR1Rb1/1Rb1q2Q/3B2r1/n4Q1q/n1qr2pB/1NN1q3/B2n1k2 b - - 0 1 illegal: No possible last move
1rNb1b2/Qn6/R2r2QR/6rq/3n1BkB/p4R2/1R1N2qb/2K1RNBb b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 h4 Kd7 d4 a5 Kd2 c5 b4 e5 g6 f3 b6 f2 b5 f1Q f6 c4 h5 g3 f7 g2 h6 e4 d6 Ke6 g7 Kf5 d5 a4 b7 Ne7 g8N Qe8 b6 Qd7 h7 Bg7 Ne2 g1B Qc2 Nec6 f8R+ Qf7 d7 Na5 d8B Nbc6 b8Q Bb7 d6 Ra6 d7 Kg4 Ne7 Bh2 Qa7 Qh5 Ng3 Nd4 Rg1 Rg8 h8R Qf2+ Kd1 e3 Nc8 c3 Bh4 Bh1 b7 Qg2 b8R Rd6 Rb2 Nb7 Ne7 Bh6 Rf7 Rb8 Nc8 Bf8 Rh6 Kh3+ Ne2 Qc5 Ng3 Qa5 Qg6 Qh5+ Rf3 e2+ Ke1 c2 Kd2 Qf1 Raa2 e1R Ra1 Re5 d8B Rg5 Raa3 Kg4 Bb6 Ne2+ Bd4 Qg2 Re1 Qh3 Nf1 Qg2 Rac3 a3 Rc6 Rf6 Bg1 Rd6+ Ke3 Nd4 Ra6 Be5 Kd3 Bf6 Bf4 Bd8 Bfh2 c1B Be5 Be3 Nbd2 Bf2 Bf4 Bg3 Kc3 Bh2 Kd3 Nb3+ Kc2 Nd4+ Kc1
1q1N4/nb1NQR1K/1k5R/r1n5/bp1B1B1r/1B4Q1/1qR1r3/nrRN1R2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 g5 f4 gxf4 h4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 Kd7 Kf3 c5 Kg4 Kc7 Kh5 b5 a4 e5 d4 h6 d6+ Kc6 d7 f3 f6 c4 f7 b3 f8R e4 a5 b2 a6 e3 g7 c3 Kg6 f2 d5+ Kc7 d6+ Kb6 a7 e2 Nd2 b1B+ Ne4 e1Q Bf4 c2 Nh3 c1N Qe2 b4 Rf7 Ba2 Nf6 h5 Qe7 h4 Bc4 f1R Nf2 h3 Nd1 h2 Bb3 Rf2 Rf1 h1R Rb1 Qe8 d8N Qc3 d7 Nc6 Rb2 Bb7 Rc2 Ne2 Rc1 R8h4 Rc2 Ned4 Rc1 Rc8 a8R Re2 Ra7 Qb2 Ra6+ Kb5 Rc2 Na7 Rac6 Qf8 Rc1 Ra8 R6c2 Nh6 g8Q Ne6 Kh7 Nc5 g6 Kb6 g7 Bb1 Ne6 Qb8 Nd8 Ba2 Qgf8 Rg1 g8R Ng4+ Qh6 Ne3 Rg6 Rgh1 Qh5 Rg1 Rh6 Bb1 Qg6 Rgh1 Rd2 Nc2 Qg3 Na1+ Rdc2 Ba2 Ba4 Bc4 Bb3 Bb5 Nc6 Ka6 d8B Ba4 Bdc7 Rg1 Bce5 Kb6 Bd4 Nb5 Kg7 Ra5 Nd8 Na7 Kh7 Qa2 Rf2 Nc6 Nb2 Rhh1 Rb1 Rh4 Rf3 Rc1 Rf1 Na7 Nd1 Qb2 Rc3 Qd2 Rb2 Rb1 Rc1 Qc3 Rbc2 Qb2 Nd7+
N1Q3n1/b2qkNrQ/bQ1p2q1/R2K4/1bR2B1q/2RR4/1n1B1r2/2B1q2R b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kf2 a5 c4 e5 b4 a4 h4 e4 g7 a3 g6 d3 Ke3 g3 Kd4 d2 c5 a2 h5 g2 c6 e3 b6 e2 f6 e1Q b5 Ra5 h6 Qe6 f7+ Ke7 b7 Kd6 c7 Qe2 h7 Qf3 b6 Qb3 Qh5 d1Q+ Nd2 Qe7 Nh3 Rb5 Ng5 Qde1 Nc4+ Kc6 Qh2 Nh6 g8Q Qf3 g7 Na6 b8B Qh5 b7 Rb2 Nb6 Q1e6 Na8 Qhg6 Rd1 Qef5 Rd3 g1B+ Qf2 Kd6 Ba7 Qh5 b8B Nb4 Bb6 Qfg6 Ba5 Qd8 Rc3 Bb7 c8Q+ Ke7 Bbf4 Ba6 Ke5 Qe8 Qb6 Nd3+ Kd5 Rf2 Rc4 Nb2 Bad2 Qh4 Rc3 d6 Rc4 Qd7 Rc3 Kf6 Rd3 Be7 Rc3 Bd8 f8R+ Ke7 Nf7 Rg2 Rd3 Bc5 Rc3 Bb4 Rd3 Rf2 Re8+ Kf6 Re4 Bc7 Rc4 Bb8 Qcc7 Ke7 Qgc8 Rd8 g8R Ba7 h8R Rf8 Rg7 Rg8 Rgh7 Rg7 Re8+ Kf6 Ree3 Ng8 Rf3 Ke7 Rh8 Qhf6 Rh1 Qh4 Rdc3 Qgg3 Rfd3 Qg6 Rb1 a1Q Q7b7 Qa4 Ra1 Qd1 Ra5 Qe1 Kd4 Qgg4 Qe4+ Qge6 Qh7 Qg6 Kd5
2Rb1R2/1rB2Q1q/1pnnN1Nr/Q1r3q1/B1N5/7k/1KB1B2b/rBn2Q2 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 d4 Kf7 Kd2 h5 Kc2 e5 a4 c5 d6 e4 d7 f3 a5 b3+ Kb2 e3 f6 Ke6 g6 e2 g7 e1B f7 h4 a6 h3 a7 f2 g5 Kf5 d5 c4 d6 h2 g6 Nc6 Be2 f1R Nd2 Nb8 Nh3 Bh4 Nf4 Nh6 g8B Re1 g7 Bg3 Rf1 h1Q Ng6+ Bf4 Bh7 Nc6 g8B Rc8 a8B Qg5 d8N Be7 f8Q+ Nf7 Ne6 Bd8 d7 Qe4 Rf3 Kg4 Rb1 Rh1 Qf1 Nd6 Qf7 Rh6 Ra1 Bh2 Ra5 Qef5 Rc5 c3+ Ka3 c2 Kb2 Rh5 Nc4 Rc7 Bf4 c1N Be5 Bf6 d8Q b6 Qb8 Qe4 Qa7 Bd8 Qa5 Qd3 Bb7 Qdf5 Ba6 Rb7 Bb5 Qd3 Ba4 Qdf5 Ka3 b2 Bc2 b1R Bf4 Na7 Rc8 Ra1+ Kb2 Nc6 Be5 Nb5 Bc7 Nd6 Qd7 Qd3 Rf8+ Kg3 Bf7 Qdf5 Be8 Qh3 Bg8 R8h6 Qdf7 Qhh4 Bh7 Qe4 Qg1+ Kh3 Bb1 Qgg4 Qge1 Rc5 Qef1+ Qgg2 Nge5 Qh4 Bhc2 Qg5 Bd7 Qg8 Ng6 Qh7 Qh1 Qg5 Be8 Ne5 Bea4 Nc6 Qhf1+
1R4R1/5N2/pr3BNn/1qN1n1Kb/2k2Q2/Rnnbq2Q/3NN3/Q1r3Bq b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kd3 Kf7 Ke3 f1Q b4 c5 d4 g5 h4 c4 f5 g3 b6 c3 h5 a6 b5 f2 h6 g2 h7 c2 d6 g4 Kf4 g3 e4 Qd7 e5 Qe2 f6 Ke6 d5+ Kf7 b7 f1B b6 Qd3 e6+ Kg6 f7 Kf6 f8N Nc6 b8R Nce7 b7 Nh6 Ra3 Qb3 Ng6 Qd8 d7 Ng4 d6 Qdb6 d8B Nh6 d7 Q3b5 Be3 c1N Nd2 Bd3 Ne2 g1Q Nb3 g2 Nc5 Nb3 Rh2 Qh1 Bg1 Rg8 h8Q+ Rg7 Rh3 Qa7 Rg3 Qab6 Bc7 Nc6 d8N Ne5 e7 Bg4 Nf7 Bh5 Qa1 Ra7 Bd8 Ra8 Na4 Ke6 e8N Kd5 Bf6 Kc4 Nc5 Rg8 Kg5 Qa7 Rd8 Rc8 b8Q Rc6 Qd6 Rb6 Rb8 Qe7 Ng7 Rf8 Nge6 Rc8 Ne4 Rc7 N6c5 Rcc6 Bf2 g1N Qc8 Qe8 Qh3 Qe6 Qd7 Qe7 Qdg4 Qe6 Qf4 Rc7 Nc1 Ne2 Bg1 Nc3 Ne2 Qd6 Rf3 Qd4 Rf1 Qe3 Rd1 Bb1 Rdd8 Bd3 Rg8 Nd5 Ne7 Kb4 Ne6 Rc1 Ng6 Kc4 N6c5 Nc3 Nd2+
1K6/2n1kQ2/2R1n2B/1Q1B3N/BN3Nb1/1N1Qrrn1/NRr1nqqp/n7 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 h5 Kd2 f5 Kd3 c5 Kc4 a5 b4 h4 e4 h3 b6 a4 Kb5 c4 g6 h2 b7 a3 d6 c3 d5 f4 e5 f3 g7 c2 e6 a2 e7 f2 d7+ Kf7 e8Q+ Kf6 d6 g2 Nf3 g1R Nfd2 g3 Nb3 g2 Nc3 Ra7 Bh6 c1N Qf7+ Ke5 Rb1 a1Q Rb2 Nd3 Na2 Nc6 b8Q Nge7 g8B Qf8 Kb6 Ra3 Kc7 Nc1 d8N Nd4 b5 Bg4 d7 Nd5+ Kb7+ Nc7 b6 Kd6 Nc6 Rh7 Bb5 f1N d8N Ng3 Ncb4 Re1 Ba4 g1N Qd3 Re3 Ne6 Ng1e2 Nf4 Qb1 Qbe8 Qc2 Kb8 Qc6 b7 Qg2 Rf1 Rg7 Rf3 Rg5 Rf1 Rc5 Rd1 Rc2 Rh1 Qe7 Qeb5 Qh4 Rf1 Nh5 Rf3 Qhf2 Rh3 Nhg3 Rh5 Re4 Rc5 Re7 Rc6+ Kd7 Qf6 Re3 Bd5 Ke8 Qf7+ Kd8 Ka7 Nde6 b8N Rf3+ Kb7 Re3 Nd7 Rf3 Nd4 Nb3 Nf6 Na1 Kb8 Rac3 N6h5 Re3 Qg8+ Ke7 Nb3 Rf3 Qf5 Rce3 Qfd3 Rc3 Qgg6 Rc2 Qf7+
k2Nr3/B1n5/1B3N1r/1B1Bq3/rbQb1Q2/2N2QqR/1K1p1bRr/6Br b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Bg2 f4 Bf1 Bb7 Na3 Be4 Nb1 Bf5 gxf5 Nc6 h4 g4 Rh3 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Qa5+ Nc3 Qc7 Nb1 Qd8 Kd2 d5 b4 Kd7 e4 Kc8 c4 Kb8 Kc2 a5 g6 h5 g7 h4 c5 a4 f6 g3 b6 a3 b5 a2 b7 g2 c6 d3+ Kb2 f2 e5 h3 e6 d4 e7 d2 e8N f3 f7 h2 Ne2 g1B Nbc3 d3 Nd4 Qa5 Ne6 Ne7 g8B Nd5 Nd8 Bb4 f8Q Nc7 Qf4 Rh6 Bd5 Ra6 Qe2 d1R Be3 d2 Nf6 Re1 Bb6 Ra8 Qd1 Re8 Bfc4 f1Q Qe2 f2 Qef3 Qh3 Re1 f1R Re2 Bd4 Rg2 Be5 Bg1 Rf2 Be2 Ne6 c7+ Ka7 c8Q Bd4 Qcc7 Qg3 Qc4 Qc7 Bf1 Qe5 Be2 Nc7 b8B+ Kb6 Bd3 Ra4 Be2 Na8 Bd6 Ka7 Bc7 Bdc5 Ba5 Nc7 b6+ Kb8 b7 a1B+ Kc2 Bd4 Bb6 Bb2 Qc6 B2a3 Bb5 Re2 Qc4 Bbc5 Be3 Bab4 Kb2 Rf2 Re1 Re2 Bg1 Rf2 Re2 h1R Rh2 Rg2 Rh3 Rgh2 Rg2 Bf2 Ng4 Rc6 Nf6 Bcd4 Ba5 Ka7 b8B+ Ka8 Bb6 Be7 B8a7 Bb4 Nb7 Rd6 Nh5 Rg6 Nf6 Rh6 Nd8+
3BK1b1/1B2N3/q2qR1pr/1Q1R1BqR/2R1q2b/1q3k1N/1rQQ1r2/R3n3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 e5 a4 exf4 axb5 g6 h4 Nd7 h5 Nc5 h6 Ne6 g3 Ng7 hxg7 fxg3 b4 Ke7 e4 Kd6 Ke2 Ke5 Ke3 f5 d6 c5 d7 h5 b6 a5 b7 a4 b8R g2 b5 h4 b6 h3 b7 a3 Ba6 c4 Qc2 h2 Nc3 a2 Nd5 c3 Nh3 Ne7 g8B Rh6 Be6 Nc6 Ne7 g1Q+ Kd3 f4 Kc4 f3 Kb5 f2 Bf5 Kd4 e5 f1R e6 Qg3 d3 Qf3 Bg5 Rf2 Rhc1 Qc7 d8R+ Qd6 Rh1 Bd7 Rbc8 Rb8 Bf6+ Ke3 d4 Be8 d5 Ne5+ Rc6 Bf7 Rc4 Nd3 Bh4 Qdg3 Kc6 Bg8 Kd7 Ne1 Ke8 Qd6 Bf6 Qd1 Bg5+ Kf3 Bf6 Qb6 d6 Qb3 d7 Qd6 Bg5 Bg7 Bh4 Bf6 Bg5 Ra8 b8Q Ra7 Qb5 Rb7 Ra8 Rb6 d8Q Rb8 Rd1 a1Q Rd5 Qaa3 Bb7 Qaa6 Bc1 Bh4 Bg5 Qab6 Ra1 Qa6 Rg1 h1Q Bf6 Qaa4 Rg5 Qaa6 Rh5 Qg2 Nc8 Qg4 e7 Qe4 Qda5 Qc7 Qaa2 Qcd6 Qd2 c2 Qb1 c1Q Qbc2 Bg5 Qe2+ Kg2 Qc5 Ra8 Qb5 Qab6 Kf8 Bh4 Qed3 Qcf4 Qdd2 Ra2 Bg5 Rb2 Bf6 Qb8 e8R Kf3 Re6 Q8d6+ Ke8 Qg5 Bd8 Qa6 Ne7
1BNn4/q1qQprNb/Rb2b1QQ/5B2/1RB1Nqn1/4N3/3N4/1kb3Kn b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 f4 d5 fxg5 f4 e4 dxe4 g6 Ra6 g5 Rd6 h3 Rd5 cxd5 Bxh3 Qc2 Bf5 Qd1 Bc8 Kf2 Kd7 b4 Kd6 d4 h5 g7 c5 g6 c4 b6 h4 b7 h3 b5 a4 b6 c3 Qg4 h2 Nf3 c2 Ne5 f3 Bf4 c1N Bd3 a3 Nd2 a2 Nb3 Be6 Nc4+ Kd7 d6 Kc6 d5+ Kb5 d7 Kb4 d6 Kc3 Ne3 Qc7 d8Q Kb2 d7 Nh6 g8N Nc6 b8N Rh7 g7 Ne2 b7 Ng3 Qg6 Nf7 Nf6 Nfe5 g8B Rf7 Qc8 Nd8 Nc6 Bh6 b8Q Bg5 Rhe1 h1B Qb6 Ng4+ Kg1 Bg2 Na7 Nh1 Bd6 Bf1 Bc4 Bd3 Bh7 Bb1 Qh6 Bc2 Bf5 f2+ Kf1 Bb1 Rd1 Bc2 Rd4 Bb1 Qcb7 Bf4 Nc8 Bg5 Ned5 e3 Ne4 e2+ Kg2 e1B Ne3 Ba5 Bg3 Qc6 Bb8 Qc7 Q6c6 Bb6 Kf1 Bd5 Qcg6 Be6 Qc6 Ne5 Kg2 f1Q+ Kh2 Qf3 Kg1 Qf4 Qb5 Ng4 Qa4 Nb7 d8N Bd3 Qd7 Bc2 Rad1 a1Q Rd6 Qa7 R1d4 Kb1 Rc6 Bd5 Ne6 Nd8 Ng7 Be6 Rcd6 Ba5 Ra6 Bb6 Rd2 Bf6 Rd5 Bb2 Rb5 Bc1 Rb4 Qa8 Nf2 Qcb7 Qgg5 Qc6 Bh7 Bg6 Ne4 Qa7 Qf6 Qcc7 Qfg5 Bh5 Bf5 Bg6 Qgh5 Bh7 Q6g6 Qfd6 Qhh6 Qf4 Nbd2#
3B4/1N2B1bK/rr2B1p1/n3r3/4R1QR/2nN3n/3k1rRB/1rQqn1BQ b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 g4 hxg4 b6 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Ra7 Bg2 Ra5 Bf1 Ra8 Kf2 Kd7 e4 Kd6 d4 c5 h4 f5 b7 g6 a5 f3 Ke3 f2 Kf4 g3 h5 c4 a6 c3 a7 a2 h6 g2 h7 c2 e5+ Kc7 d6+ Kc6 d5+ Kc5 e6 Kb4 d7 Bc5 d6 Qh4+ Qg4 Qh2+ Kg5+ f4 d8B Bd4 e7 f3 e8R Qg3 d7 Nf6 Kh6 Qd6 Be7 Ne4 d8B Nc3 Be3 c1N Bc4 f1R Nh3 g1N Be6 f2 Na3 Re1 Nc4 f1R Nf2 Nc6 b8B Nh3 Na5 Nd3 Nb7 Na5 Rd1 a1R Rd2 Rf8 h8Q Rab1 Kh7 Rf6 Bbc7 Rb8 a8Q Re2 Qa6 Ne1 Qd3 Ra8 Ra2 Ra6 Bb8 Nd5 Qa3+ Kc4 Nd3 R1f2 Rb2 Qd7 Bd6 Qa4 Bh2 Qd1 Bc8 Rfb6 Be6 Qb3 Rd2 Kc3 Ra2 Bg7 Rb2 Rf4 Beg1 Re5 Rg2 Rf6 Rf8 Rf2 Rf4 Kc2 Re4 Nc3 Bg3 Nf4 Rh4 Nh3 B3h2 Kd2 Qf8 Rd1 Qff3 Nd5 Rg3 Rb1 Qh1 Qd1 Rg2 Nc3 Qc1+
1q2B1N1/bkQ2rqp/4NqB1/5N1q/5q1r/B2n1n2/4q1NQ/RK1NRQ2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kc8 Kd2 c5 Kc2 a5 e4 f5 e5 c4 b6 f4 e6 c3 e7 f3 e8B a4 b5 f2 b7+ Kc7 d6+ Kb6 d7 a3 d5 a2 g5 Na6 b8N Bc5 g6 Ne7 d6 Rf8 g7 Kb7 g8N Nf5 b6 Nh4 Nf3 g1Q Ne1 g2 Nc6 Qb8 d8Q Nf3 d7 Qgh2 Bd3 f1Q Nce7 g1Q+ Ng2 Rf7 Bg6 Qh5 Ba3 Qe2+ Kc1 c2 Qf1 Qd4 Nf5 Qf6 Nc3 Nb4 Nd1 Qg7 Qh4 Ra4 Qh2 Bd4 Rb1 a1Q d8N+ Kc8 Ne6 Kb7 Rg1 Bf2 Rh1 Qaf6 Ra1 Bc5 Qf2 Bd4 Re1 Bc5 Qf1 Bg1 Qe5 Bf2 Kb2 Nd3+ Ka2 Rh4 Qc7+ Ka6 b7 c1Q+ Bb2 Qc4+ Kb1+ Qa4 Ba3 Ba7 Qg3 Qaf4 Qh2 Qbd6 b8Q Qde5 Qd8 Kb7 Qa5 Qb8 Qc7+
Nk1K1n1R/2n1QQNR/Rp1R4/r2nr1B1/1R3Qb1/6b1/bBB5/4bn1b b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Nb8 h5 Qd6 Bc4 Ra3 Bf1 Qg6 hxg6 Ra8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 h5 a4 f3 d4 b3 g7 c4 a5 e6 a6 h4 a7 b6 f6 f2 f7 h3 g6 h2 d6+ Kb7 d5 c3 d7 c2 d8B b2 d6 Na6 d7 Nh6 Kf6 e5 g8R e4 g7 e3 Nf3 e2 Ra4 e1B Na3 b1N Bb2 c1N Qd4 Nc3 Rb4 Nb8 Qf4 Nb3 Bd3 f1B Nd4 Bd6 f8Q Nd2 Bc2 Nb5 Qe7 Nf5 Ne6 Rh5 Rh8 Ne3 g8Q Bc4 Qgf7 Ndf1 Ng7 Nc7 Nb5 Re5 Rh7 Ba2 Rh8 Ne6 Nc7 Na6 Rh7 Nf8 Rh8 Rb8 a8R Ra5 Nce6 Nc7 Ra6 Ra8 Rh7 Kb8 Rh8 Nb5 Nc7 Ra7 Na8 Nc7 Rg1 h1B Rg4 Rd5 Rgh4 Re5 R4h7 Nb5 Qee6 Bc7 Ke7 Nd5+ Ke8 Bd6 Bg5 Bc7 d8R Bd6 Raa4 Ra5 Qee7 Bc7 Rd6 Bg4 Rd7 Bd6 Kd8 Nbc7 Ra3 Bc5 Rd6 Bcf2 Raa4 Bg3 Ra3 Rc5 Ra7 Ra5 Ra6
2Q3K1/R2N4/1r1n3b/kbN1bn1n/2rB3N/1Q2rnp1/2RNR3/N1r2B1B b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 d4 Kd7 Kd2 c5 Ke3 Kc7 Kf4 Kb6 Ke5 h5 b4 a5 e4 f5 d6 f4 d5 g2 d7 a4 Ke6 g3 Kf7 a3 d8N c4 e5 h4 d6 h3 g6 h2 d7 a2 e6 f3 e7 f2 e8R c3 g7 c2 Nf3 g1N Re2 Ne7 g8B Ra4 Nb7 Rh3 d8N Bd7 Nbd2 Nc8 Na5 Rh6 Nab3 Ra7 Bb2 c1R Nb7 Rc5 Bd4 Ra3 Nh4 Nf3 Rc1 a1B Rc2 Bb2 Na1 Re3 Qb1 Bc3 Qb3 Rd6 Bh7 Bh6 Kg8 Be8 Bg6 Nd7 Be4 Bb2 Rg1 h1R Rg2 Bc3 Ra2 Rc6 Ra7 Nd6 Rh2 Kc7 Bd5 Rc4 Nc5+ Kb6 Be4 Nf8 Rg2 Ng6 Rh2 Nf4 Bd5 Ne5 Bf3 Rg1 Bh1 Nh5 Rg2 Nf3 Rh2 Rc7 Rg2 Rb7 Rh2 Kc7 b6+ Kc6 Rg2 Kb5 Rh2 Rb8 b7 Kb6 b5 Bb2 Bfg2 Rgc1 Bh3 f1N B3g2 Rc8 b8N Rc6 Bh3 Re6 Rhf2 Ne3 Bf1 Nef5 Rg2 Re3 Rh2 Ra4 Rhg2 Ra6 Nbd7+ Ka5 b6 Rc4 b7 Bc3 Bg7 Be5 b8Q Rc1 Qc8 Rb6 Rgf2 Rb4 Nb6 Bb5 Nbd7 Rbc4 Nde4 Bef4 Bd4 Be5 Rc2 Rb1 Rfe2 Rc1 Rb7 Rc6 Nd2 Rb6 Ra7+
1N4Qb/6Q1/4b1R1/N1br1k2/1N1N2bB/1Bp2rR1/3qRNbb/Kb4Qr b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Bg2 g5 Bh3 f4 Bf1 Nh6 h3 Nf5 gxf5 Nc6 h4 g4 Bh3 Nd4 Bg2 Ne6 Bf1 Ng5 hxg5 Kf7 Bg2 Ke7 Bf1 Ke8 e4 Ke7 b4 a5 d4 c5 Kd2 h5 Kc2 g3 Kb2 g2 d5 h4 d6+ Kd7 g6 a4 g7 h3 g8Q h2 b6 f2 b5 f3 b7 Qh4 b8N+ Kd8 f6 Be6 e5 Ra5 d7 Qg5 b6 Rh3 f7 Ke7 Ne2 g1B Ra3 c3+ Ka1 c2 d8N c4 b7 Rd5 Na6 Qd2 b8N Bg4 e6 Kf6 e7 Kf5 e8R Bc5 Bg2 f1B Nb4 f2 Rg3 a3 Nb7 a2 Bf3 Bg2 Na5 f1B Nbc3 Bgd4 Re7 Be5 Rg1 h1B Re6 Bc7 Ne4 Be5+ Bb2 c1B Re8 Bh8 Bf6 Ba3 f8Q Bd6 Nf4 Bd3 Ne2 Bb1 Qfg7 Bc7 Bh4 Bf4 Nc2 Bc5 Nf2 Bfd6 Re6 Bc7 Rg6 B7d6 Re1 Bc7 Kb2 a1R Qc1 Ra3 Qd1 Rad3 Ka1 c3 Nb4 Rh2 Qc1 B2h3 Qd1 B1g2 Qc1 Rh1 Nd4+ Kf4 Be4 Rf3 Bc2 Be6 Re2 Bhg4 Bb3 B7d6 Ndc2 Kf5 Qg1 Bf4 Rh3 Bh2 Rg3 Rd7 Ne4 Rdd3 Nf2 Rd5 Nd4+
5kN1/2N2BBb/2R1b2K/1q2rq1R/Qb1rR3/5B1Q/r2NbpNr/2bN4 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Bd2 g5 Be3 f4 Bc1 Ne7 h3 Nf5 gxf5 Nc6 h4 g4 Qd3 Ne5 Qd2 Nf7 Qd1 Ng5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 a5 c4 d5 e4 h5 b4 d3 f6 a4 g6 d4 e5 d2 b6 h4 f7+ Ke7 c5 d3 g7 h3 g8N+ Ke6 b7 a3 b8R a2 b5 h2 c6 Rh5 b6 Rh8 b7 Qd5 c7 Qd8 Nh3 Qe8 Be2 Qa4 Bb2 Qb5 Qa4 d1R Nd2 Ra5 Rc1 Bb4 f8N+ Kf7 Ng6 a1R Nh4 Ra2 e6+ Kf8 Rc6 Rh5 Re1 h1B Ng2 Qf5 Ra8 Re5 b8N Bd7 Ra5 g3+ Kg1 Bc8 Nf2 Rh2 Na6 Bd7 Nfe4 Bc8 Nc3 f2+ Kf1 Bd7 Bf3 Bc8 Ndb1 d2 e7+ Ke8 Rac5 Be6 c8Q+ Kf7 e8B+ Kf8 Ne3 g2+ Ke2 g1B Nc7 Bg2 Qd7 Bh3 Bf7 Bg4 Qd3 Bh5 Qd7 Bg6 Rb5 Bh7 Ba1 Rc1 Nd1 Rc4 Bb2 Rce4 Kd3 f1B+ Re2 Bf2 Ng2 Bd4 Ba1 Bb2 Rd5 Bc1 Bb2 Re3+ Kd4 Rc3 Re4 Rd3+ Kc4 Qg5 Na6 Rf5 Be2 f3 Ndc3 f2 Bf3 Ba5 Nc7 Be2 Kc5 Qg4 Kd6 Rg5 Ba1 Bef5 Ke5 Rgh5 Kf6 Rg5 Ree6 Qb4 Ree5 Qb5 Rd4 Bb4 Qe6 d1Q Nd2 Qb3 Nd1 Q3d5 Rde4 Bh3 Qg4 Qdc5 Qh4 Be6 Qh3 Rh5 Rg5 Rd8 Be5 Rd4 Rf5 Rh4 Kg5 Rg4+ Kh6 Rg5 Rff4 Rf5 Rh4 Rg5 Bh8 Rf5 Rh5 Qc2 Rg4 Re5 Bf6 Qf5 Re4 Bd7 Bh8 Be6 Bg7+
R1r1q3/3n4/3q1Q2/k2N1QqB/q3nBnQ/3R1nr1/1pq4Q/R1Q1NB1K b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qc2 f3 Kd1 f2 Qb3 Kd7 Kc2 Ra6 Kb2 Ra3 Qd1 Ra8 Kc2 Ke8 Nf3 f5 Nd4 g5 Nf3 f4 Ng1 f3 h3 g4 Bg2 Bd6 Bf1 Bf4 gxf4 g3 Kb2 Qg5 Kc2 Bg4 hxg4 Qd8 Kd3 Kd7 Ke4 h5 a4 b5 d4 c5 f5 Kc7 a5 b3 g5 c4 a6 Kb6 f6 g2 g6 b4 f7 b2 f8Q h4 g7 c3 d6 c2 d7 b3 d5 h3 d6 h2 a7 Na6 Nc3 b1Q Qf5 b2 Bf4 Nb8 Qc1 Nh6 g8Q Ng4 Qgh7 Rg8 Nd5+ Kb5 Qh8 Qe8+ Qhe5 Rg6 d8Q Nd7 Qh4 Rc8 a8R Rg8 R1a3 Qa1 Rc3 Qa7 Rd3 Ka5 Nh3 g1Q Ng5 Qg2 Rg1 h1N e3 Nb6 d7 Rg6 d8Q Ng3+ Kd4 Qa6 Qdf6 Nd7 e4 Rg7 Qed6 Rg6 e5 Ne4 e6 Qh2 Qd1 c1Q e7 Qc2 Qc1 Qg3 Be3 Qg2 Qdh2 Qg3 Rh1 Qd6 Bf4 Rg7 Bg2 f1N Bh3 f2 Nf3 Nfg3 Ne1 Ng5 Bf1 N3e4 Rg1 Nh6 Ke3 Nf3 Rh1 Rg3 Rg1 Qg8 e8B Qg5 Bg2 f1Q Bh5 Qa4 Bh3 Qg2 Rh1 Qgc2 Bf1 Ned2 Kf2 Qac6 Be2 Ne4+ Kf1 Ng4 Rg1 Rh3 Kg2 Rg3+ Kh1 Q6a4 Bf1 Qe7 Ra3 Qd8 Ra1 Qe8 Rg2 Qd8 Rd2 Qe8 Rb8 Qb6 Rd3 Qd6 Ra8+
QB3B2/r4R2/1NR2N1K/b1b2r1p/qn1p1nRk/Qr6/N1qQ4/qR2R3 b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 g6 e5 f6 exf6 Kf7 Ra4 Ke6 f7 Ke5 Ra1 Kd6 g4 Ke5 f4+ Ke6 f5+ Kd5 f6 Kc5 Bd3 Bb7 Bf5 gxf5 h3 Bf3 g5 Bg4 hxg4 Kd6 Ke2 Ke6 Kf3 a5 Kf4 d5 c4 h5 b4 a4 g6 a3 Kg5 f4 b6 d3 c5 f3 g7 f2 c6 f1R b5 d2 c7 a2 c8R d4 b7 Re1 b6 Rh6 Ba3 Rf1 Ne2 Re1 Nbc3 Ra4 Rb1 a1Q Nc1 Qe8 Nd5 Re3 Na2 Na6 b8B Rb3 b7 Nb4 Nb6 Ra7 Rg1 Qc6 Re1+ Qe4 Qc1 d1Q Qd2 Qc2 Rc7 Qc6 Rc8 Qa4 Rc2 Qe2 Rc8 Rh8 Rc7 Ke5 Rc6+ Ke4 Kg6 e5 g5 Bc5 f8Q Kf3 f7 Nf6 g8N Nfd5 Nf6 Kg3 Qe7 Rd8 f8R Nf4+ Kh6 e4 g6 e3 g7 Rd5 g8R+ Kh4 Rf7 Rf5 Rgg1 Qf2 Qf8 e2 Rg4+ Kh3 Be5 Qg2 b8Q Qe4 Qa8 Qc2 Reg1 e1B Bb8 Bf2 Rge1 Bh4 Nfd5 Bd8 Nf6 Bc7 Nc4 Ba5 Nb6 Ne2 Qe7 Nf4 Qe8 Rg3 Ree6 Na6 Nfd5 Be7 Qf8 Rb3 Ree1 Bd6 Nf6 Bdb4 Rgg1 Kh4 Qc5 Qe4 Qcc1 Qc2 Qb2 Be7 Bc5 Nb4 Qa3 Bd8 Bf8 Be7 Rgg7 Bc5 Rg4+
3n1n2/2qQ1RbB/N2R1pp1/1bBqB2k/B4r2/r2N2bK/2N3Q1/B3r2R b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 c5 Kg2 b3 h4 b2 d4 c4 e4 c3 e5 c2 e6 f3+ Kh3 f2 d6 Nh6 d5 Ra7 d7+ Ke7 d6+ Kf6 e7 Nc6 e8B Rh7 b6 Ra2 b7 Ng8 b8N Bb7 h6 Kg6 h5+ Kf6 Be3 c1B Qg4 Bd2 Nf3 Bb4 Na3 b1Q Na6 Qc2 Ne5 Qd3 Qg2 Be1 Nc2 Qd5 Nd3 Ra3 Bc5 Qc7 d8R Nge7 d7 Ng6 Ra2 Rh8 h7 Rg8 Be2 f1R h8B Bg3 h6 Kg5 h7 Re1 Bf3 Ba8 Be4 Kh5 Rb2 Bb7 Rb6 Ba8 Rdb8 Nd8 Rd6 Bc6 Rb7 Bb5 Ra7 Be7 Rb7 Rf8 Ra7 Ne6 d8Q Bf6 Qc8 Nd8 Qb7 Bc4 Ba4 Bb5 Qc8 Rg8 Bf5 Nf8 Qd7 Ba1 Be6 g6 Be5 Bd4 h8B Bb2 Bf4 Bg7 Be5 Bh6 Bhf6 Bg7 Ba1 Rh8 Bfe5 f6 Bg8 Qa5 Qc7 Kh6 Qc8 Qb6 Rf7 Qc7 Qd7 Rh7 Qf3 Kg5+ Kg2 Rh4 Bh7 Rf4 Kh3 Kh6 Qf2 Kh5 Qg2
Q1B2KNq/b2r4/2pn1R2/1R1Q1N2/1B1bRb1b/2NB1B1k/4pb1B/2nr4 b - - 0 1 illegal: No proof kernel
1q2r3/3n1p2/n4Rp1/b1Nk2nr/RR1N2Rn/b1R1BQQB/n1K1B3/3N4 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 g4 hxg4 b6 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Ra7 Bg2 Ra5 Bf1 Ra8 d4 Kd7 Kd2 Kd6 e4 c5 h4 c4 a5 g3 b7 c3+ Kc2 f3 a6 f2 e5+ Kd7 h5 g2 e6+ Kd6 e7 a2 e8R g6 h6 Qb6 a7 Qd8 h7 Qc7 Be2 f1N Rh4 Be7 Rc8 Nh6 Nf3 g1B Rg4 Nf5 Be3 Rf8 h8Q Re8 Qh4 Rf8 Qg3+ Kd7 d6 Kc6 d7 Nh2 d8N+ Kd5 Ne6 Rh8 Nc5 Na6 b8R Rh5 Rb4 Nh4 Qd3 Rb8 a8B+ Qb7 Rc6 Re8 Rf6 Bd8 Qd1 Ba5 Qd3 Nf1 Qd1 Nd2 Qf1 Ne4 Qfh3 Qc6 Bb7 Ng5 Bc8 Qc7 Bf5 Qe5 Be6+ Kd6 d5 Qf4 Nd4 Ke5 Kd3 c2 d6 c1N+ Kc2 Bh2 Bc8 Kd5 d7 Qb8 d8R+ Qd6 Bd7 Qb8 Rc8 Bg1 Ne4 Bh2 Qf3 Bd6 Rc3 Bf8 Qhg3 Be7 Rbb6 Ba3 Bc8 Nd3 Rb4 Ndc5 Nbd2 Nd7 Nc4 Bb6 Nb2 Bd8 Rc1 Ba5 Nd1 a1N+ Kb1 Nb3 Kc2 Bb2 Ra1 Nc1 Raa3 Na2 Raa4 Ba3 Nc5+ Ne4 Rgf4 Ne5 Bh3 Nd7 Qf1 Ng5 Rg4 Nb6 Qff2 Nd7 Qff3+
3Q2r1/1rN2K1n/2Q1Qb2/BbpR3N/1k1bR1BR/p1n1q1Q1/5Q2/2N2br1 b - - 0 1 legal: proof: g4 d5 d4 e5 a4 h5 e4 f5 exf5 b5 axb5 hxg4 c4 exd4 cxd5 Rh4 Ra6 Rh3 Ra1 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 a5 h4 g5 b4 c6 f4 d3 b6 d2 f6 g3 f5 g4 b5 a4 h5 a3 f7 g2 f6 g3 b7 Be7 f8R Nd7 b8N Ba6 h6 Bb7 f7 Nc5 h7 Nf6 b6 Nfe4 Qa4 d1B Nd2 Nd3 Rh4 Qd7 Be2 Qe8 Nf1 Ndc5 Be3 Bf6 Bg4 Qe6 Na6 Qe8 Nc7 Bg5 Ne2 g1B Nc1 g2 Ng3 Bf4 Nh5 Qe7 Re8 Rg8 f8Q Bh6 h8Q Bg5 Qhh6+ Ne6 Qf2 Ra7 Qhf6 Ba8 b7 Nc3 b8Q Rb7 Bb6 c5 Qg6 Bf6 Qc6+ Ke5 d6 Ba4 d7 Ng5 d8Q Nh7 Qf1 Be3 Qf2 g1R Ra2 Bd4 Rd2 Be3 Rd7 Bd4 Qf7 Qe6+ Rd5+ Ke4 Qf1 Qe5 Qfe6 Ke3 Qf3+ Kd2 Qg3 Qe3 Qbc8 Be5 Qf7 Bf6 Re4 Kc2 Qf5 Kd2 Q7e6 Bb5+ Kb3 Bf1 Qff2+ Ne2+ Kc4 Kc2 Rd6 Kb2 Kd5 Kc3 Rd7 Kb4 Kd6 Bg7 Ke7 Nc3 Rd6 Bf6+ Kf7 Ra7 Qcd7 Bc6 Rd5 Bcb5 Qdc6 Rb7 Ba5+
2B1N1kb/1qq2r1R/Q3N2N/3nbRBq/3qppB1/2QRR1r1/7n/2RK4 b - - 0 1 illegal: No possible last move
1b1Q3r/p2qr3/2bq2RB/7r/1kn1BR1p/rB3K2/R1NNNRR1/2Q1r3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Ke7 e4 Kd6 Ke2 f5 d4 h5 g6 c5 b6 g2 g7 c4 b5 g3 e5+ Ke7 b7 f4 b8R h4 d6+ Kd7 b6 Kc6 e6 Kb5 d7 c3 e7 c2 e8B Qf6 d8N+ Bd7 d5 Qc6 b7 Kb4 d6 Nf6 g8R Ne4 Kf3 Rh5 Ne2 g1R Bg2 Re1 Bf7 Bg7 Be3 c1Q Rf1 Qa3 Ne6 Be5 N6d4 Qc7 Rg6 Bc6 d7 Nd6+ Bd5 Nc4 d8Q Qd7 Rf2 Bd6 Rc8 Bb8 Qc1 Qd3 Bh1 g2 Nd2 g1R Ra2 Rgg5 Rc7 Re5 Be4 Qd6 Rcg7 Re7 Bg2 Qd7 Bh3 Qa3 Be6 Qa6 Rgg2 Qb6 R7g6 Qbc7 Kg4 f3 Bh6 Qcd6 Nc2+ Kc5 Rf1 f2 Kf3 Kb5 R6g4 Kc5 Rf4 Kb5 Rfg1 f1R+ Rf2 Kc5 Rg6 Kb5 Qa3 Ra1 Qc1 Re1 Bf7 Nb2 Bb3 Nc4 Rb2 Ra3 Ra2 Bc7 b8R+ Kc5 Rb4 Bb8 Ra4 Kb5 Ncd4+ Kc5 Ra5+ Kb4 Rag5 Bc7 Rg1 Rc8 R1g2 Bb8 Qc7 Rce8 Qd8 Rh8 Nc2+
2Q2r1Q/r1n2QpN/2bK4/3RR1pk/q1Bq4/4Nr2/q1BQR1B1/1Q4br b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h6 g4 Nf6 g5 hxg5 d6 Ng8 f4 Qf6 d4 Ne7 d5 Ng8 Be3 Qd8 Bd4 exd4 e4 Nd7 e5 Rh6 e6 Ne5 fxe5 Rh8 Kd2 f5 Kd3 c5 Kc4 a5 b4 a4 h4 f4 d7+ Ke7 b6 d3 b5 f3 b7 d2 b8Q f2 h5 a3 b6 a2 h6 Ra6 h7 Qe8 d8R Qg6 b7 Ra3 Nf3 Ra6 Ne1 Rd6 Bg2 f1R Rh2 Rf5 Qb3 d1R Nc2 Qf7 Nc3 Qf6 Ne4 Qf7 Ne3 Rdf1 Re1 a1Q Nf6 Bd7 Qc8 Ba4 b8Q R5f3 Qa2 R1f2 Qbb1 Ra6 Re2 Qb2 Rh1 Ra7 Rhe1 Bc6 Qb3 Bb7 Kb5 c4 Kc5 c3 Q3a2 c2 Qc4 Nh6 Qf4 Rg8 h8Q Bc6 Nh7 c1Q+ Qc4 Qe8 Rd6 Qd8 Rd7+ Ke8+ d6 Qcc2 e7 Qa4 Qd5 Ng4 Qd2 Kf7 e8B+ Ke6 Bg6 Nf6 Bc2 Qba2 Qc7 Be7 Qc8 Kf7 e6+ Ke8 Qcb7 Rf1 Qc7 Bf8 e7 Kf7 Qc8 Nd5 e8B+ Ke6 Beg6 Rh1 Bgd3 Nc7 Bc4+ Ke5 Qd5+ Kf4 Qf7+ Qf6 Rd8 Kg3 Rd7 Kh4 Rd8 Qf4 Rd7 Be7 Rd8 Bf6 d7 Qg4 Kd6 Rf8 Rd1 Bc3 Rd5 Qd4 Re8 Be1 d8Q Bf2 Re6 Bg1 Re5 Na6 Qa5 Nc7 Qfd7 Kh5 Qd2 Qdb2 Qe7 Qd4 Qf7+
2Rb4/bR1NQK1p/N1Bb4/p2R4/r2Bnk2/QnQ2bQ1/3r1r1B/n6Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 b4 a5 f4+ Kd4 g4 h3 b6 e3 b7 Ke4 d4 h2 d6 e2 f5 e1B d5 e5+ f6 c4 b5 c3 b6 c2 d7 Ra6 d6 Qe8 d8R Be6 d7 Bd6 f7 Ra7 f8Q Bg3 Rc8 Be1 d8Q Bc4 Na3 Bb3 Bb5 Nc6 b8B Ra6 b7 Nb4 Rb1 Ra8 Be3 c1N Bd4 Nc2 Nf3 Nf6 Bc6+ Bd5 Qde7 Na1 Nc2 Bf2 Nb4 Ncb3 Na6 Qd8 Kh6 Qc7 Kg7 Kf4 g5 e4 g6 e3 Ne5 e2 Nd7 Bf3 Kf7 e1B g7 Ne4 g8Q Be3 Qg2 Bh4 Qgg1 Rg8 Qd3 Rg2 Qc3 Rf2 Rb2 Nc1 Rb5 Ncb3 Rd5 Rd2 Bh8 Ba7 Bd4 Be5 Qa3 Bd8 Qfe7 Qd6 Bc7 Rf2 b8Q Qg6+ Kf8 Qg3 Qb7 Bd6 Kf7 Rd2 Qg2 Rf2 Rb1 h1R Qg1 Rb8 Qa8 Rb4 Bb8 Ra4 Rb2 Nbd2 Rb7 Rhh2 Qh1 Bc5 Qa7 Ndb3 Bc7 Rd2 Bb8 Rhf2 Qb6 Nc1 Qb1 Ncb3 Qbg1 Ba7 Rb4 Kg4 Ke8 Be5 Kf7 Qg2 Rb7 Bh2 Bf4 Bg3 Bfe3 Bd6 Bh6 Kg3 Bf4+ Kg4 Bh2 Qg3 Ne5+ Kf5 Nd7+ Kf4 Qxg3+
r7/3Qnp1N/1pN5/2B1rnK1/1NbB1rQ1/b1Nn2B1/R2kn3/1NR1r2R b - - 0 1 illegal: No possible last move
B2n1N2/1kN5/r3Bn2/1NqnKQ2/Q1N2BR1/p1p1n3/R2QN1nr/1n4r1 b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 cxd5 Kd7 Rh3 Ke7 Rh1 Ke8 b3 b5 Qc2 b4 Qf5 Bd7 Qg4 Bc5 Qg3 Bb6 axb6 a5 Qd3 a4 Qc2 a3 Qd1 Ba4 bxa4 Qd7 Rh3 Qe7 Rh1 Qd8 Kf2 Kd7 Kf3 Kc8 Ke4 h5 g4 c5 d4 f5+ Ke5 f3 e4 c4 b7+ Kc7 a5 c3 g5 b3 d6+ Kc6 a6 f2 d5+ Kb6 g6 f4 g7 b2 d7 h3 a7 f3 d6 h4 Ne2 h2 Qa4 h3 Ra2 Qf8 d8N Ne7 g8Q Rh5+ Qg5 Nd5 d7 Qc5 Ne6 Rh6 Rg1 h1N Nc7 h2 d8Q Ng3 Nd2 h1R Bh3 f1N Qf5 Nh5 Rg4 b1N Nb5+ Kc6 Qdg5 f2 Nc4 Rg1 Bf4 Nfe3 Qd8 f1N Qdg5 Na6 b8N+ Kb7 Nd7 Rah8 Nf8 Ng2 Qd8 Nfe3 Qd6 Qb6 Qd8 Nc5 Qdd7+ Nc7 Qd2 Ncd5 Kd4 Qc7 e5 Rf1 e6 Nb4 e7 R8h7 e8N Rg1 Qg5 Nbd5 Rh4 Ra6 Qe5 Qd6 Nec7 Nhf6 Qh5 Qc6 Ke5 Ne6 Qg5 Nd8 Be6 Rh8 Qf5 Qc5 Rg4 Rh2 a8B+
3R1B1k/p2n3R/4K3/1q2bB1N/Qb1RqR1q/2Q4N/Rb1pb3/Q4qrB b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Ng8 f6 Ba6 Ra4 Bb7 Ra1 Bc8 Be2 Na6 Bf1 Rb8 Be2 Rb6 Bf1 Rd6 Bf4 Rd5 Bc1 Rf5 gxf5 Qb6 Ra4 Qc7 Ra1 Qd8 h4 g5 Bf4 g4 Bc1 Nc5 Ne2 Ne6 Ng1 Ng5 hxg5 Bb7 Qd3 Ba6 Qd1 Bc8 Kd2 Kf7 b4 d5 c4 e5 c5 h5 c6 h4 b6 d3 Kc3 h3 b5 g3 b7 g2 b8Q e3 c7 d4+ Kc4 e4 b6 h2 g6+ Ke8 f7+ Ke7 f6+ Ke6 b7 d2 g7 e2 Qa4 d1Q Ra2 e1Q Nd2 e3 Bd3 e2 Ba3 Qd7 Nf1 Bb4 f8R Qh4 f7 Kf6 Nh3 g1B Rd8 e1B Bf5 Bec3 Ng3 Bb2 Qa8 Qf3 b8R d3+ Qe4 Be5 Qd4 d2 Ra8 Bb7 c8Q Qfe4 Qc7 Rh6 Qca5 Rg6 f8R+ Ke7 Rab8 Nf6 g8B Ba6+ Rb5 Be3 Nh5 Rg1 Bd5 Qe8 Ba8 Nd7 Rf6 Bf2 Rd6 Kf8 Rd5 Be7 Qc3 Kg8 Bb7 B7f6 Bf8 Kh8 Bc6 Be7 Ba8 Bb4 Rd6 Qe1 Kd5 Qf1 Rc5 Bd3 Rc4 Be2 Qa1 Be3 Qdc3 Bh6 Rf4 Bhg7 Qcc1 Bb2 Qc3 Be5 Bb7 Nc5 Ba8 Qb5 Bb7 Nd7+ Ke6 Rg8 Rdd4 Rg4 Rg1 h1Q Bc6 Rg8 Rg7 Qe4 Re7 Rg1 Ba8 Qc2 Bh1 Qe4 Rh7+
1RrB1nN1/q1N1np1n/3RRn1r/1QQ3r1/3K4/p3N1rB/3kr3/5NBN b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 h3 h5 Ra2 Bb7 Ra4 Bf3 Bg2 Bg4 Bf1 g6 Ra6 Bh6 gxh6 g5 Ra4 Bf5 Ra6 g4 Ra5 g3 Ra1 Bg4 hxg4 Qa5+ Bd2 Qb6 Bc1 Qd8 Kd2 Ke7 Kd3 Kd6 b4 Kd5 e4+ Ke5 c4 d5 c5 a5 b6 h4 h7 f3 g5 h3 g6 a4 b7 a3 c6 g2 b5 h2 c7 f2 c8N Qf8 g7 Ne7 g8N Na6 b8R Nc7 b6 Ra5 b7 Ne6 Ne2 g1N Bg5 Nf3 Bh3 f1R Qc2 Rg1 Nd6 Rg3 Rd1 h1R Nf5 Qg7 Qc3 Nf8 Qc5 Qg6 Ne3 Qb6 Ra2 Qa7 Nd2 Rb5 Bh4 Ng5 Nf1 Rb2 Nh2 Rc2 Nc1 Kf4 e5 Re2 e6 Rhg1 Re1 R1g2 Rd2 Rg1 Kc2 d3+ Kc3 d4+ Kc4 Rh1 Rdd1 d2 Nd3+ Ke4 Nf2+ Kf4 Kd3 Rhg1 Kc4 d3 Kd4 R1g2 Nh1 Rg1 Rb1 d1R Rb6 d2 Rc6 Rc1 Rd6 Neg6 e7 d1N e8N Nf2 Nc7 Ng4 Nd1 Nf6 Ne3 Rg4 Bf2 R1g3 Bg1 Ne7 Nc4 Reg2 Ree6 Re2 Ne3 Rcc2 Qb6 Rc6 Qc5 Ra6 Nh6 Rg8 h8B Ngh7 Bg7 Rc6 Bh8 R8g5 Ng8 Rh4 Bg7 N6d7 Bf6 Rh6 Na6 Rc8 Nc7 Neg6 Bd8 Ne7 Ra8 Ndf6 b8Q N6d7 Qbb6 Ndf6 Rb8 Ra2 Nhf1 Kf3 Nh2+ Ke2 Qb7 Ke1 Qbb6 Re2 Qbb5 Kd2 Nhf1+
3rR2K/6n1/NpR2kb1/2rR3b/pQN1Q1Q1/3pb1B1/B2q2n1/2RRr1N1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Rh6 d4 cxd4 a4 Rh8 a5 b6 a6 Qc7 Ra5 Qc6 Ra1 Qb7 axb7 Na6 b4 Nxb4 Ke2 Nd3 Kd2 Nb2 Ke2 Kf7 Ke1 Ke8 Ke2 a5 Kf3 Kf7 Kg4 e5 Kg5 d5 b8N e4 c4 d3 f4 a4 h4 d4 f6 g6 h6 d2 f5 e3 h7 e2 c5 e1R h5 Ba6 h6 Be7 c6 Bf8 c7 Be2 c8R Bc5 Na3 Be7 Nc4 Bf8 Rc6 Bd6 Na6 Bh5 Qg4 d1B Bf4 Rd8 Rc1 Bc5 Bg3 Ne7 Bd3 Rhg8 h8R Bc2 h7 Nd1 Kh6 g5 Be4 Rg7 Re8 Ne3 h8Q Ng2 Qh7 Bb1 Bf3 Be4 Bd1 d3 Bb3 Bd4 Ba2 Be3 Qh8 Rg8 Kh7 Rd5 Rd8 Rc5 Rd5 Rd8 Rd1 Ng6 Rc1 N6f4 Rd1 Ne6 Qg7+ Ke8 f7+ Ke7 Qd4 Ng7 f8R Rf1 Kh8 Re1 Qh3 g4 Re8+ Kf7 f6 Beg6 Bc7 g3 Qhg4 Nf4 Qe4 g2 Nf3 g1Q Rc1 Ne2 Bg3 Qg2 Rf1 Nf4 Ng1 Re2 Rfd1 Re1 Qe5 Qd2 Qe4 Bf5 Qe2 Kg6 f7+ Kg5 f8Q Ng2 Rd7 Bfg6 Rd4 Re5 Rd5 Rf5 Qb4 Re5 Rc8 Kf6 Q2g4 Rf5 Rd7 Ra5 Rd5 Rc5 Rc6+
8/B4pK1/1N2R1N1/QN1b2nr/Q2Qn2q/R1pB1pB1/1n1bkNNr/6r1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 c5 d4 g5 h6 g4 h5 g3 b6 b3 e4+ Kb4 d6 f3 d7 g2 d5 b2 b7 c4 d6 c3 h7 Kc5 h6 Nf6 Be3+ Kb4 Qd4+ Kb3 Ra3+ Kc2 Nh3 g1R Nf2 Na6 b8N Rhg8 h8B Qc7 d8N Bf5 h7 R8g2 Nd7 Rg3 Ne6 Rb8 Rh6 Rg7 Nb6 Ra8 Nf4 Nc5 Ng2 Qd8 d7 Rg5 Bf4 Ra7 Bg3 Na4 Bd3+ Kc1 Bg7 Rh5 h8N Nh7 Re6 Qh4 d8Q Ng5 Kf6 Ra8 e5 Be4 Qc7 Bd5 Ng6 Bd6 Qcc5 Rah8 Qa5 Bc7 Bf8 Bb8 Bc5 Bc7 Nd2 b1N Ndc4 Nb2 Kg7 Nd2 Nd6 Nde4 Nb5 Kd2 Na4 Nf6 Ba7 Nfe4 Nb6 Bb8 Re7 R8h6 e6 Bf4 Re8 Rh8 e7 R8h6 Rc8 Rh8 e8Q R8h6 Rc6 Be3 Bc2+ Ke2 Re6 Bd2 Qd7 Qf4 Qda4 Rh2 Qd6 Qh4 Qe5 Rh8 Qed4 Rh5 Bd3+
1Q1b3q/RN3nk1/4R2r/5ppq/R1B1rp2/B1q1r1B1/1QNN1B2/2n2K1B b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 g4 hxg4 b6 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Ra7 Bg2 Ra5 Bf1 Ra8 d4 f5 h4 Kf7 e4 c5 a5 g3 e5 a2 b7 g6 h5 c4 h6 g2 h7 c3 d6 c2 a6 Nc6 b8Q Qb6 a7 Qb3 d7 Nd8 d5 Bh6 d6 Qa4 e6+ Kf8 e7+ Kf7 e8R Kg7 Re6 Qc4 Ne2 g1Q Qd4+ Nf6 Nd2 Qc5 Qdb2 Qg4 Nd4 Qh5 Bc4 Ne4 Kf1 Nf7 d8B Nf2 d7 Nd3 Bh4 Bg5 Bg3 Bd8 Rh2 g5 Rh1 Bf6 d8N Qc6 Nb7 Bd8 Rh3 Qc5 Rh4 Qb4 Rh2 Qc3 Rhe2 Re8 Ra6 Re6 Ra4 Rf6 Re6 Rh6 Qd6 Rc8 a8B Rc7 Ra7 Re7 Qb8 Re8 Rb1 a1Q h8B+ Kg8 Bf6 Kf8 Be7+ Kg7 Ba3 Re7 N2f3 Re8 Be3 Nc1 Bef2 Re7 Nd2 Re8 Rc6 Re3 Rca6 Na2 Re1 c1R Ra4 Rb1 Qc2 Rb4 Qb2 Nc1 Nc2 Qd1 Be6 Rbe4 Bc4 Qh5 Nd6 Re7 Bh1 R7e4 Nb7 Qf6 Qb4 Qac3 Qb2 Qfe5 Re2 Qe8 Re1 Qh8 Qa1 Re5 Bc6 Rf3 Qb2 Ree6 Re5 Re3 Bh1 Re7 Re6 Re8 Rf6 R8e4 Re6
1r1n1q2/1n3nRK/2Nr2BR/2p3QQ/1BR3p1/3qbNR1/k3p1R1/1Nq2B2 b - - 0 1 legal: proof: c4 b5 e4 h5 a4 f5 axb5 d5 cxd5 fxe4 g4 hxg4 b6 a5 b3 a4 Qe2 a3 Qf3 Bd7 Qd1 Ba4 bxa4 Ra5 Bd3 Ra6 Bf1 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 Kg6 e5 f4 c5 d4 a2 h4 e3 f5 g3 a5 e4 f6 g2 f7 e2 d6 e1N d7 e3 b7 Qc8 d8R Rh5 a6 Nh6 a7 Qc6+ Kh7 g5 d5 Qc8 d6 Qg4 d7 Qc4 Rh3 Qf4 Nf3 g1Q Rg3 Nc6 b8N Nc2 Bd2+ Kb3 Bb4 Na5 Nc6 Rb8 a8B Nb7 Rg2 Bg7 f8R Bd4 Rg8 Qf8 Rg7 Qh2 Rc8 Qg3 d8Q Qgd6 Qf6 Nf7+ Qh6 Qg3 Re8 Kb2 Re4 e2 Qd2 g4 Qg5 Be3 Rc4 Nbd6 Bb7 Nd4 Bc8 Kb3 Bf5 Nb7 Bg6 Kb2 Qf4 Rf5 h5 Ne6 Qe5+ Kb3 Qg5 Rf6 h6 Ned8 Qh5 Rd6 Qeg5 Qe7 Kg8 Qh3 h7 Kb2 h8R Qf8+ Kh7 Qg3 Nc3 Qh3 Rd1 a1Q Rd3 Qc1 Nb1 Ka2 Nfe5 Bd4 Rdg3 Be3 Nf3 Qh4 Qe5 Qf6 Qe7 Qf5 Qeg5 Qd3 Qe5 Bf2 Qeg5 Qe7 Kg8 Be3 Rh6 Qf8+ Kh7
2N2q2/1R2B2b/1r4p1/1RKnB2R/qN3NB1/rNb1Np1q/1Q2p3/2r1Q1k1 b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 c4 hxg4 cxd5 Nc6 f3 Nb8 d6 gxf3 e4 Nc6 d4 Kd7 e5 Ke6 d7 Na5 d5+ Kf5 Ra4 Nb7 Ra1 Nd6 exd6 Kf6 Kd2 Kf5 Kd3 Kg4 Kc4 e5 b4 f5 h4 Kg3 h5 Kf2 b6 c5 b5 a5 b7 f4 b8B a4 h6 a3 h7 a2 b6 e4 b7 e3 Ba3 e2 Nd2 g6 Qe1+ Ke3 Bh3 f2 Rb1 f1Q Rb5 a1Q Bg4 f3 Nh3 Qg2 Nf1+ Ke4 Nf4 Bh6 Ne3 Ne7 Rh5 Rf8 h8Q Bg5 Qb2 Bf6 Bb4 Qe8 d8N Qh3 d7 Qa4 d6 Nd5 Nc6 Bc3 d8N Rf6 d7 Qf8 Na5 Rb6 Ndc6 Raa6 d8N Be6 Be5 Bg8 b8R Bh7 Rb7 Ra7 Nd1 Raa6 Ne7 Ra7 Nf2+ Ke3 Ndc6 Raa6 Nb3 Ra8 Ne4 Ra7 Ng3 Ra8 Qea1 Kf2 Nf1 Kg1 Nc8 Raa6 Qe1 Ra7 Kd3 c4+ Ke4 Bd4 Bbd6 c3 Be7 c2 Nb4 c1R Kd3 Bc3 Kc4 Qa2 Kc5 Ra3 Qb1 Qc2 Qb2 Qd1 Na1 Qa4 Nb3 Kh1 Ne3+ Kh2 Qed2 Kg1 Qe1+
3BQb2/1b2bqRR/Rp1r4/1q1Q4/2Q3KR/NBr3p1/pnB2R2/q5Nk b - - 0 1 illegal: No possible last move
nn1b1N2/1B1p3B/B5Nr/3nNQ2/2n3p1/kq3pn1/b1R1Q1B1/2B2RKR b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d3 c5 d4 cxd4 h3 g5 gxf5 a5 h4 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Ba6 Kd2 Bb7 Ke1 Bc8 Kf2 Ke7 b4 Kd6 c4 h5 e4 f3 b6 h4 e5+ Kc6 c5 h3 b5+ Kd5 c6 Kc5 e6 Kb4 c7 a4 g6 a3 b7 h2 e7 d3 e8B d2 f6 a2 g7 Ne7 g8B Rh4 f7 Rh3 b6 Rg3 Na3 Nd5 Bg2 Be7 f8N Bh4 Qe2 d1N+ Kf1 Bf6 Bef7 N1c3 Nc4 Na4 Ne5 Rh3 Bh7 Rh6 Nh3 Qe7 Bfg6 Qf7 Nf4 Bd8 Be4 Qe6 Kf2 Kb3 Rf1 h1N+ Kg1 Ng3 N4g6 Qg8 Bd3 Qf7 Ba6 Qg8 Bf4 Ka3 Rad1 a1N Bc1+ Kb3 Rde1 Nc2 Rd1 Qe6 Rd2 Nce3 Rc2 Nc6 b8R Nc4 b7 Nab6 Ra8 Qf7 b8Q Bb7 Ra7 Na8 c8B Ka4 Qd6 Nb8 Qf6 Bc6 Bcb7 Kb4 Bf4 Ka3 Qf5 Ba4 Bd2 Bb3 Bc1+ Kb4 Bb5 Ba2 Ra3 Qe6 B5a6 Qb6+ Re3 Qb5 Rd3 Ka4 Rdd1 Qb3 Kf2 Kb4 Rh1 Ka4 Rdf1 Kb4 Kg1 Ka4 Rb2 Ka3 Rc2+
R4BB1/1b1N1bNQ/2Rn3K/p5Np/5Q1k/3r2pr/rbN3q1/NQ1B1b2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 f5 a4 e5 axb5 e4 h4 Qd6 f3 Qh2 Bg2 Nc6 Bf1 Nd4 h5 f4 h6 Nf5 gxf5 exf3 Ra4 Nxh6 Ra1 Ng8 b4 Ke7 d4 Kf6 Kd2 Kg5 b6 c5 f6 h5 f7 f2 e4 g6 d6 a6 d7 f3 Ke3 c4 d8N c3 b5 c2 d5 Ne7 d6 Bf5 e5 Qh4 d7 Nc8 e6 Nd6 b7 Ne4 b8Q Nd6 e7 Bh3 e8B Bf5 b6 Be6 b7 Qh3 Nc6 Rg8 d8N Kh4 Kf4 Nf5 Qd7 Nh6 Nb4 Ba2 Be2 f1B Na3 f2 Bd1 Bfc4 Ne6 f1B Ng7 Bc5 f8N Be7 Bf7 Bd5 Be6 Rh8 Bg8 Bf6 Qe7 Bf7 Nd7 Bad5 Bd2 c1R Nbc2 Be4 Bb4 Nf5 Ra2 Rb1 Na1 Rb3 N3c2 Nd6 Qbf8 Rh7 b8Q Bb7 Qe4 Rg3 Qa7 Qh2 Nh3 Qg2 Ng5+ Rh3 Qfb8 Bb2 Qc4 Nf5 Bf8 Nd6 Ra5 Rh8 Qa2 Rh7 Qb1 Rh6 Qc7 Rd8 Rc5 a5 Rg1 Re8 Rc3 Re2 Rc6 Rd2 Qe3 Rd3 Qd2 Ra3 Qdc1 Ra2 Ne4 Ra4 Ne6 Raa3 Nb8 Qe2 Bh7 Ra4 Bg7 Be8 Qf7 Nf5 Nd7 Ra2 Rg3 Ba6 Rf3 Qf2 Bg8 Qg2 Re3 Bc8 Bf8 Bb7 Qh7 Bf7 Qd2 Be8 Ng7 Bf7 Qd4 g5+ Ke5 g4 Kf4 g3 Rb3 Ba8 Rb8 Bb7 Ra8 Rd6 Qa4 Rh2 Qb4 Rd3 Qd6 Kh3 Kg5 Rh1 Qe5 Nd6 Kh6 Kh4 Ng5 Rh3 Qf4#
Rk2b3/R1rnQpB1/1r3nR1/3p4/N1rb3n/1R2N2N/r1QR1p2/1BBK4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 g5 e4 a5 b4 d5 c4 Kd7 e5 Kc7 e6 f3 h6 g4 c5 a4 h5 a3 b6+ Kb7 h7 a2 b5 g3 h6 g2 e7 d3 e8Q Be7 Na3 Qd7 Nh3 g1R Nc2 Qd8 Rh2 Nf6 Ne3 Ng8 Qc2 d2+ Kd1 Rg6 Bd3 Bh4 Qe7+ Nd7 c6+ Kb8 b7 Bf6 Rf2 Ra4 c7+ Ka7 b8R Bd4 Rg2 Rb6 Rg6 Ngf6 Be4 Rg8 h8R Rc4 h7 Bb7 Bf5 Bc6 Rb7+ Ka8 c8N f2 Ra7+ Kb8 Be4 Rb7 b6 Rc7 b7 Re8 Rb1 a1R Nb6 Ra2 Rb3 Rg8 Na4 Qe8 Rg4 Rg6 Rg8 Qc8 h8B Qd8 Ke2 d1N Bg7 Rh6 Re8 Bb5 Rg6 Bc6 Nf1 Ne3 Kd2 Nf5 Kd1 Nh4 Ne3 Ra1 Qe2 Bb5 Bb1 Ra2 Qc2 Ne5 Rh8 Be8 Rd3 Ned7 Rd2 Rh5 Rhh6 Re5 Rh5 Re6 Re5 Ra6 Re6 Qc8 Rb6 Qd8 Rb5 Rb6 Rb3 Qc8 Ra5 Qd8 Rab5 Ka7 Rc5 Qa8 Ra5+ Kb8 Ra6 Bc3 Ra7 Bd4 bxa8R#
5bR1/1p2r2Q/N1kR4/1b2R3/3nK1Br/1NpR1p1B/2n1N1rn/3QnQ1R b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 f5 cxd5 h6 b4 f4 Bb2 Qd7 Ba3 Qf5 gxf5 Bd7 Bb2 Be6 Bd4 axb4 Bc5 Bd7 Be7 Bc8 Bg5 hxg5 Kf2 Kd7 Kf3 c5 a4 g4+ Ke4 g5 d4 g3 h4 b3 d6 g2 e6+ Kc6 a5 c4 f6 g4 d7 c3 d8R g3 a6 b2 f7 Rh6 h5 Be7 f8Q Rh7 a7 Bf6 e7 Na6 e8R Bd7 h6 Nc7 d5+ Kb6 d6 Rb8 a8N+ Kc6 Ra5 Nd5 Nc7 Nde7 Nd2 b1N Re5 Nf5 Na6 Nd4 Nb3 Re7 h7 Na3 h8Q Nh6 Qh7 Nac2 e3 Bh8 Ne2 g1N Bh3 g2 Qff5 Rc8 Rg8 Ng4 Qff7 Be8 d7 Nh2 Bg4 Ngf3 Qc4+ Kb6 Qcd3 g1R Qf1 Rc4 Qdd1 Na1 Bh3 Nc6+ Kd5 Rg3 e4 Re6 Rf5 Ne1 e5 f3 Rfg5 Re7 e6 Rh4 Rf5 Rg2 Re5 Rf7 e7 Nac2 Bg4 Bg7 Ke4 Rh6 Bh3 Bf8 Bg4 Rg7 Bh3 Bf7 e8B Bc4 Bg6 Re7 Bgf5 Bb5 Bfg4 Rh5 Ra8 Rh6 d8R Rh4 Rd3 N6d4 Rd8 Kc6 Rd6+
B1r5/pK2k3/1BnQ1r2/1qr3BQ/Np3Q2/N1q2QbR/Q1p2N1r/1R5q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qb3 Qg5 Qd1 Qd8 b3 c5 Qc2 c4 Qd1 b4 Rh3 c3 Nf3 Bd7 Ng1 Bb5 axb5 Nc6 Rh2 Na5 Rh1 Nc4 bxc4 Bd6 Ra3 Be7 Ra1 Bf8 Kf2 f5 Kf3 h5 d4 c2 e4 h3 g4 h2 b6 h4 g5 h3 c5 Nh6 g6 Rc8 c6 Rg8 c7 Ke7 b7 Bg7 b8Q Qf8 e5 Bf6 g7 Bh4 e6 Kf6 e7 Qf7 e8Q Ng4 d6 Bg3 d5 Bh4 d7 Rd8 c8N Nh6 d6 Ng4 Nb6 Qf8 Na3 Bg3 Rb1 Rc8 Qh5 Rc5 Bg2 Qc8 d8B+ Ke6 d7 Ne5+ Ke2 f3+ Ke3 f2 Kd4 f1R Na4 f4 Bb6 f3 d8Q f2 Ba8 Re8 Bg5 Nc6+ Ke4 Rf8 Qf4 Qc7 Qb8 Rc8 Qdf3 Kd7 g8Q Qe5+ Kd3 Qb2 Ke4 Qc3 Bh6 Ke7 Qa2 Rd1 Qbc7+ Rd7 Qb8 Rd6 Bg5+ Rf6 Qbe5+ Kf8 Qed5 f1Q Qe6 Rc4+ Kd5 Rc5+ Kd6 Qb5 Kd7 Rd8+ Kc7 Re8 Qed5 Rc8+ Kb7 Ke7 Ne2 Nb8 Nc1 Nc6 Rd1 h1R Nd3 h2 Nf2 Rf1 Rd4 h1Q Rd3 Rg1 Qdd4 Rg2 Qdd5 Rh2 Re3+ Kf8 Qdd6+ Ne7 Qh3 Bh4 Qfg2 Ke8 Qhg4 Kf8 Rh3 Bg3 Qge4 Ke8 Qef3 Nc6 Qdd4 Kf8 Qh5 Ke7 Qdd6#
4N2b/R2b1kp1/2N3QB/1Q2b2B/1q1qb1n1/2q1Q1N1/n1RpB1p1/B2K1B2 b - - 0 1 illegal: Other
q1N2r1R/1Br4p/b1rQ1N1Q/Rp1R4/3nk3/1pBp3K/Q6N/2b2nNN b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 f4 Kd7 Kf2 Kd6 Kg3 e5 a4 b5 f6 e4 a5 b3 g6 e3 g7 d3 f5 Ke5 a6 e2 d6 e1R d7 Ne7 g8N Ke4 a7 Bg7 f7 Bb7 f8R Ba6 f6 Nbc6 f7 Nf5+ Kh3 Qb8 d8Q Qe5 g4 Nh6 g5 Qf4 g6 Ne7 Nf6+ Ke5 Bb2+ Qd4 Ne4 Nc6 Bc3 Ng4 Bg2 Bf6 g7 Bg5 g8N Ne7 Nf2 Kf4 Bb7 Qb4 Nd2 Qe4 Qb1 Qb4 Qa2 Qc5 Ndf3 Qc6 Nf6 Nf5 Nh2 Rc8 a8N Nge3 Nb6 Rc7 Nc8 Nd4 Qd6+ Kf5 Re8 Rc1 f8Q Nf1 Qh6 Rf8 Rd8 Rff7 Rh8 Rf8 Qe2 Qe8 Ra5 Qd8 Qa2 Rc2 Ngf3 Bc1 Rg1 Rc6 Nh1 Qe8 Rg6 Rc7 Ng1 Qc6 Nfg4 Ke4 Rg5 Qd5 Rh5 Qc6 Rd5 Qe8 Bb4 R2c6 Bc3 Qd8 Nb6 Qb8 Nc8 Qa8 Nf6+
1nk1N2r/Rq1p2bB/5b2/Kbp2B2/Q1pRR3/2RQ1rQ1/3BN2p/n5R1 b - - 0 1 legal: proof: c4 g5 e4 b5 h4 f5 hxg5 e6 exf5 Nf6 d4 Ng8 d5 exd5 a4 dxc4 axb5 Ba6 Bd3 Bb7 Bf1 Bc8 Kd2 a5 Kc3 h5 g4 h4 f4 a4 b4 c6 f6 h3 g6 h2 g7 a3 b6 a2 b7 Bd6 b5 Ne7 g8R+ Kf7 g5 Ke6 b6 Rh6 f5+ Kf7 Bd2 Rh3+ Bd3 Na6 b8R Rf3 b7 Nc7 Ne2 Rh3 Re1 Qf8 g6+ Ke8 f7+ Kd8 g7 Qe8 f8Q Re3 f6 Ba3 f7 Ra5 Qa4 Bc1 Kb4 Rd5 Na3 c5+ Ka5 Bb2 Nb5 Rf3 Nd6 Ne6 Bf5 Nd4 Rad1 a1B Ra8 Kc7 Ra7 Nc2 b8Q+ Kd8 Qbb3 Ba6 Qd3 Bf6 Rg1 Bab2 Rh8 Bbd4 g8B Bb5 Bgh7 Na1 Qg8 Bg7 f8R Bdf6 Rf7 Rd4 Rc1 Rh4 Rc3 Qf8 Ne8 Nc6+ Kb6 Nb8 Ka5 Rh5 Re7 Kc8 Re4 Qd6 Rd4 Qd5 Re4 Qb7 Rd4 Bh6 Qg3 Bhg7 Rf8 Rh3 Rf7 Rh4 Re7 Rh3 Ree4 Rh4 Bhg6 Rh8 Bh7
K3N1r1/pB6/1N1qn1R1/1B2NRBp/Qr1rQ3/1n5k/bp1n1pR1/2B2B2 b - - 0 1 legal: proof: b4 b5 f4 d5 c4 g5 h4 gxh4 cxd5 c5 a3 e5 Rh2 exf4 Rh3 Bg7 Rh1 Bc3 bxc5 b4 Ra2 b3 Ra1 Bb4 axb4 Qg5 Qc2 Qf6 Qd1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 g4 h5 d4 f6 c6 b2 b5 h3 b6 Kh4 c7 f3 d6 f2 Kd5 f5 e4 f4 d7 h2 e5 f3 g5 Qf6 d8R Qg7 e6 Qe7 g6 Qf6 b7 Kg4 e7 Qf8 e8N Qf6 g7 Na6 b8Q Qg6 Ra5 Qf6 Qb4 Qb6 Nd2 Qb8 Kc6 Bf5 c8B Rh6+ Rd6 Nf6 g8B Be6 d5+ Ne4 Nc4 Rh7 Nb6 Rd7 Bb7 Nc7 Qda4 Bf7 Rg6+ Kh4 d6 Ba2 Bgc4 Ne6 Rc5 Nd2 Rf5 Nb3 Qe1 Rd8 d7 Qf4 Qe4 Rab8 Bh3 f1N Bb5 Nfd2 Bhf1 f2 Rg2 Ra8 Nf3+ Kh3 Rhg1 h1R Ne5 Rdb8 d8B Qh6 Bbc4 Qf8 Bg5 Qd6+ Kb5 Rd8 Ka6 Rac8 Bb5 Rc4 Bd5 Rb4 Kb7 Rd7+ Ka8 Rg7 Be7 Rg8 Bb7 Rh2 Rg6+ Rg2 Bg5 Rd4 Bfc4 Rg4 Rg2 Rh4 Bf1 Rb4 Qb1 Rhd4 Qe4
r1B2Q2/BnQ3p1/K3prk1/3qN1pb/1q1Q1pQ1/4RQN1/2qR4/n3B2N b - - 0 1 legal: proof: f4 d5 g4 b5 d4 e6 Kd2 h6 c4 b4 cxd5 b3 g5 hxg5 Kc3 Rh6 e4 Bd6 e5 Rh7 exd6 Rh8 axb3 Qe7 b4 Qf6 f5 Qxf5 b5 Qf2 Kb4 c5+ Ka5 f5 h4 Kf7 b4 c4 d7 f4 d8Q a6 d6 c3 h5 c2 d7 Qg3 b6 Qh4 b5 Nh6 b7 Ra7 b6 Ra8 d5 Qg4 d6 Rh7 Qc7 Qg2 d8Q+ Nd7 b8Q Rh8 b7 Ng4 h6 Nf2 h7 Nd3 Ne2 Qc6 Ra2 Ra7 Nbc3 Kg6 Ng3 Kf7 Qg4 Nb4 Nce2 Ra8 Bd2 c1Q Be1 Kg6 Qf8 Q1c2 Rh3 Nc5 d7 Qd5 d8Q Bd7 Nh1 Be8 Neg3 Rg8 Kb6 a5 Ba6 a4 Qbc8 a3 b8B Rh8 Ba7 Nb7 Qc3 Rg8 Qcf3 Bf7 Rb2 a2 Qcc7 a1Q Qdd6 Qa3 h8N+ Kf6 Ng6 Qaa4 Qfc8 Rf8 Ne5 Bh5 Qdc5 Rf7 Q8f8 Qab3 Qd4 Qa4 Nc4+ Kg6 Ra2 Rf6 Rb2 Na5 Bc8 Nb7 Ra2 Nc6 Rb2 Nca5 Ka6 Qb4 Ra2 Nb3 Ne5+ Kh6 Rb2 Na1 Ra2 Qcb1 Re2 Qc2 Re3 Kh7 Rh2 Kh6 Rd2 Kh7 Nf7 Kg6 Ne5+
k7/2B1RQB1/Q2pppr1/5n1K/n4N1R/1Qp1nB1p/2NNQ1bn/5Qr1 b - - 0 1 illegal: No possible last move
2K5/2bQ1pr1/Qr6/RBNb1ppB/2p3Q1/n1n2QRp/2Bk1pR1/6NQ b - - 0 1 illegal: Other
1qk2bb1/2qr1nB1/rNN5/1q5B/3N3q/q2R1nQb/4nNBQ/RQ1K2N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 b4 f5 g4 a5 e5 c5 d6 a4 b6 a3 g5 c4 b7 h3 b5 a2 b6 f3 d5 h2 g6 f2+ Kd2 c3+ Ke2 h4 g7 c2 Nd2 h3 Qe1 f4 Ne4 Nh6 g8Q Rh7 Qg3 Ra6 Bg2 f1N Bb2 c1Q Nf2 Qcc7 Kd1 Nc6 b8Q f3 b7 Nd4 Qd2 Qe8 e6+ Kd8 d7 Nf7 Qb4 Ne2 Bg7 Nd2 Qb3 Rh4 Qb1 Rd4 Qa7 Rd3 b8N Rd4 Qc5 Rd3 Qcc2 Rd4 Ne4 f2 Qcb2 f1B Nf2 Nf3+ Qd2 Ke7 d8N Qb5 d6+ Ke8 e7 Be6 Nbc6 Kd7 e8B+ Kc8 Ne5 Bd5 Ne6 Qcb8 Qb4 Rd3 Nd7 Qc7 Rc1 a1Q Qb1 Qa3 Nb6+ Kb8 d7 Qab4 d8N Rb3 Qh6 Nh8 Qd6 Q4a5 Qa2 Qa3 Nc6+ Kb7 Rc3 Qb8 Kc2 Rb1 Qhf4 Rd1 Bh5 Bc4 Qde5 Rd7 Ned4 Bg8 Rd3 Nf7 Qeg5 N3e5 Bd5 Kc7 Na8+ Kc8 Ngf3 Bg2 Ra1 h1Q Be4 Qh2 Qb1 Qg3 Qgg4 h2 Kd1 h1Q+ Ng1 Qhh4 Qh3 Bf1 Qh2 Bh3 Bg2 Nf3 Qg5 Qgf4 Qgg3 Qfc7 Nb6+
b3rkN1/N1KBbqR1/3r4/1N1B3Q/1nNBRQr1/n1Q3Nn/1bnn4/5q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 h3 e4 f3 d4 f4 b4 c4 d6 c3 g5 h2 b6 c2 d7+ Kf7 d5 h4 b7 h3 d6 f2 g6+ Kg7 b5 f3 b6 a4 Nd2 a3 Ne2 a2 Rg1 h1Q Bg2 f1R Ng3 h2 Nc4 f2 Bb2 c1B Qh5 Qh4 d8Q Be7 d7 Ra4 Bd4 Rd1 Qc7 f1N d8N Nd2 Nc6 Bb2 Na7 Nf6 Nb5 Na6 b8Q Nb4 b7 Nfd5 Rb1 Kg8 g7 a1N Qa5 Nbc2 Qc3 Qh3 Qd6 Qd7 b8N Ba6 Nc6 Bb7 Nca7 Ndb4 Qf6 Ba8 Qf4 Qb7 Ke6 Qc7 e5 Na3 Bd5 N1c2 Re1 Qg1 Re4 h1N Rc1 Qf1 Rb1 Qb6+ Kd7+ Qe6+ Kc7 Qf7 e6 Nf2 Rc1 Nh3 Ra1 Bc5+ e7 Bd6+ Kc8 Bc5 e8B Be7 Bec6 Rh6 Rc1 Re1 Bd7 Rg6 Rb1 Rg4 Kc7 Ra6 Re6 Re2 Rg6 Rd6 Re1 Bf6 Rg5 Re8 Re4 Be7 Re6 Qf6 Rg6 Kf7 g8N Kf8 Re4 Qf7 Rg7
1RB3qr/4QNn1/3B1rb1/1Bq5/kb1b1bK1/BNR2r2/3bQ2R/n1BNn3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Kg3 f4+ Kh2 g3+ Kh3 g2 d6 f2 b6 Kc6+ e6 g4+ Kh2 a4 b7 a3 e7 a2 e8B+ Nd7 b8B f3 Kg3 c4 h5 Kb5 h6 Nf6 h7 Ra3 Bg6 Ne5 d7 Nd3 d5 c3 d6 c2 Rh2 Ka4 b5 Ne1 b6 Ne8 b7 Ng7 Ne2 g1B Bf5 Be7 Nd4 Qg8 Bc4 f1R d8B Be3 d7 f2 Qe2 Bd2+ Nb3 Beb4 Bd6 Bf4+ Kh4 g3 b8R g2 Kg4 g1B B8e7 Bb7 d8N Be4 Bc8 Bg6 Nf7 Bfd2 Nd4 Rf3 Nc3+ Ka5 Nd1 Ka4 Rb1 a1N Rb3 Rf6 Rc3 Rf3 Ba3 c1B Bg5 Bf4 Nb3 Bce3 Rh4 Bd4 Rh1 Bgh2 Bh6 Bd2 B4a6 Bhf4 Rh2 Rh1 Bg5 f1Q Bd3 Qf2 Bc4 Qe8 B4a6 Rf8 h8Q Rf1 Qh5 Rh8 Qh4 Qg8 Bh6 Qe3 Qe7 Qe5 Bg5 Qc5 Bf6 Re3 Nh6 Bg3 Rc2 Bb2 Nf7 Re6 Bc3 Rf3 Bd4 Bgf4 Bf2 Rf6 Be3 Bdc3 Bc1 Bcd2 Bc4 Bbe5 Rc3 Bd4 Bb5+
1RK3N1/R1b1rrNq/Qq6/q1N2knB/2N1Rb2/1N1q1nq1/1B2r3/1bB1Q3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 a5 d4 a4 e4 f3 g4 h3 g5 h4 g6 a3 b6 h2 b5 f2 d6 c4 g7 h3 b7 a2 d5 c3 b6 f4 Kf5 f3 e5 c2 Ne2 Rh7 Nd2 Nc6 b8R Nf6 g8N Ne4 b7 Qb6 Nd4 Ng5 Be2 f1R Nc4 f2 Bh5 Re7 Nb3 Nd4+ Kf6 Ra6 Qe1 Ndf3 Bb2 c1B e6+ Kd8 d7 Bf4 Rg1 h1Q Rg4 h2 Kf5 Kc7 d8N Qg1 Kf6 h1Q Bc1 Be3 Re4 Qg3 Kf5 Bf4 Bb2 Rd7 e7 Qhh2 e8Q B8d6 Qg6 Re7+ Ne6+ Kd7 Ng7 Bc7 d6 Ra7 Qh6 Rg1 Bc1 f1Q Bb2 Qd3 Qe6+ Kd8 d7 Rg2 Qc6 Qh1 Qb5 Re2 Qa6 Bcd6 Kf6 Kc7 d8N Kd7 Nde6 Bc7 Bg4 Qh7 Bh5 Kc6 Nec5 Bf5 Ra8 Bg6 b8B Rb7 Rb1 a1Q Ra7 Qa5 Bc1 Bd8 Bd6 Bc7 Be5 Kd5+ Nce6 Re8 Beb2 Rf8+ Ke7 Rf7+ Ke8 Bf5 Nec5 Bg6 Re7 Be4 Kd7 Bg6 Nce6 Ke4+ Kc8 Bf5 Ne8 Bg6 Nec5+ Kf5 Re6 Bb8 Re4 Rbe7 Ra1 Bbe5 Ra4 Bc7 Rb4 Qf6 Rbb7 Qfb6 Rb8 Qd1 Nd7 Qdd2 Rd4 Ke6 Rd5 Be4 Rd4 Bb1 Ndc5+ Kf5 Re4 Qd3 Ng7+
R3q1Nn/2k5/RN2bbnR/2Qqb3/BrqB4/1Q2bN2/r1N1n1N1/2BKb3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 a5 b4 c5 e4 g5 d6 f5 d5 g3 e5 g4 b6 c4 b5 c3 b7 f3 h5 f4 b6 a4 h6 f2+ Ke2 c2 h7 a3 Qd4 g2 Ra2 g3 Qc3 f3+ Kd2 Nh6 Qc5 Qe8 Bb5+ Nc6 b8Q f1Q b7 f2 Nf3 g1B Ba4 Nf7 Rh6 g2 e6+ Kd8 d7 Bd6 Ra1 a2 Na3 Rg8 h8B Nce5 Bg7 Ng6 Bd4 Be7 Qg3 Bf6 b8N Qb5 Qh3 Qc6 e7+ Kc7 d8R f1Q Nd7 Qc4 Nb6 Nfh8 Ke1 Be3 d6+ Kb7 d7 g1N Qg3 Ne2 Qh3 Q6d5 Qe6 Qf7 e8N Be5 Nf6 Qe8 Qh3 Rf8 Ng8 Rf4 Bcb2 c1B Nc2 Bf2+ Kd1 Bce3 Bc1 Be1 Qe6 Qe7 Rf8 Qe8 d8N+ Kb8 Qf7 Rg4 Ne6 Ra6 Rb1 a1B Nf4 Be6 Ng2 Bb2 Ra1 Rf4 Bd7 Ra2 Ba4 Rg4 Qf5 Bbc3 Qb4 Kc7 Qb3 Bb4 Qh5 Be7 Qf5 B7f6 Qg5 Qeb5 Ra8 Qe8 Qf5 Bd8 Qf8 Bdf6 Qc5+ Qec6 Qc3 Qb4 Bb5 Rb2 R1a6 Ra2 Ba4 Qbb3 Qd3 Re4 Bdb2 Rb4 Bd4 Qbc4 Qa5 Qcd7 Qb3 Qe8 Qc5+
1Q1NbqQ1/Q2b4/1n1bR1b1/3n4/5NBK/3r1BR1/bk1Bbb1Q/1N1Q1rr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kd6 d4 c5 b4 f5 g4 a5 g5 h5 b6 a4 b7 f3 g6 h3 Kg3 f4+ Kh2 h4 b5 f2 b6 a3 g7 a2 Qc2 c4 Bb2 c3 Qc1 c2 Bc4 f1B Qd2 c1B Qd3 f3 Qc2 f2 Qe2 Ne7 g8Q Be3 Bc1 Ra3 Bd2 Rd3 Bb3 Bg2 Bd1 f1B Qf2 Bg4 Bf3 Nd7 Ne2 Bf5 Rg1 Bg6 Nf4 Be2 Qg3 Bf2 Re1 Rh7 Rg1 Rf7 b8Q+ Qc7 b7 Nb6 Qa7 Qb8 Qg5 Bgf1 Rg3 Rf5 Qh5 Qe8 Kh1 h2 Qh6 Bh3 e5+ Kc7 e6 Kd6 Qh5 Bg4 Kg2 h1B+ Kh2 h3 Qh6 Nc6 e7 Nb4 Qh5 Rg5 Qhh7 Bd7 Bg4 Qa8 e8B Be7 Bf7 Qf8 Bf3 Bg2 Be6 Bgf1 Beg4 Bde8 Kh1 h2 Qhh8 Bh3 Qhh7 Bd8 b8Q+ Bc7 Qh6 Ke7 d6+ Kf6 d7 N4d5 d8N Bd6 Be6 Bf5 Kg2 h1B+ Kh2 Rg4 Kh3 Rg5+ Kh4 Bg2 Bf7 Bfd7 Be6 Bgf1 Beg4 Bh3 Bh5 Bhe6 Bhg4 B6f7 Nc3 Bfe6 Re1 a1R Nb1 B6f7 Bh5 Kf5 Bfg4+ Ke4 Qhh7 Nc3 d5 Kd4 Bf3 Kc4 Bhg4 Kb3 Qh6 Kb2 Qhh8 Bc7 d6 Ba2 Qh5 Nd5 Qh6 Bc6 d7 Bd6 Qh5 Bd1 Re6 Be2 Nf7 Rf5 d8Q Bcd7 Qdc7 Rf6 Nd8 Rf7 Nc3 Rg1 Nb1 Bc8 Qd7 Rf6 Qda4 Bcd7 Qd1 Bb5 Ng2 Nc3 Bd5 Be1 Kg5 Rff1 Qh2 Bf2 Nf4 Bbd7 Bdf3 Nd5 Kh4
R1rnn2Q/b4b1q/3NB2R/2N2B1q/7B/k2B2K1/3BrnbQ/b1RqrQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 g4 a5 b4 c5 e4 h5 b6 f5 b7 h3 g5 h2 b5 a4 b6 f3 g6 h4 g7 c4 Bg2 c3 Qd3 a3 Bd2 f4 Bh3 c2 Bf5 c1Q Nc3 a2 Nh3 Nf6 g8B Qd1 Bge6 Qe8 Rc1 a1B Qf1 Nc6 b8R Nd8 b7 Ra2 Ng5 h3 Ra8 Qh5 Na4 Ne8 Nc5 Bd7 Nd3 Ba4 Nc5 Bb3 b8Q+ Nc7 Rg1 h1Q Rg3 h2 Rh3 Qh7 Rh6 Bc4 Qb2 Ne8 e5+ Kc7 d6+ Kc6 Qc2 Kb5 d7 Bg7 Be3 Kb4 d5 Bf8 d6 Bd5 Rc8 Ka3 Bd2 Bg7 Nge4 Rf8 Bg8 Bf7 e6 Bgc3 e7 Ba5 Nb3 Bb6+ Nbc5 Ba7 Ra8 Nc6 d8Q Bb3 d7 Nf6 Ba5 Re8 Qb6 Rc8 Qg1 Nd8 Be1 Ne8 Nd6 Bc4 Bd5 Bb3 Bde4 Bf7 Bd3 Rb2 Na4 Ra2 Qd4 Rb2 Nc5 Ra2 Kf1 f2 Qh8 Qhf3 Be6 Qh5 Kg2 f3+ Kg3 f1R Qcf2 Re2 Bd2 Rfe1 Bef5 h1B Qfh2 f2 Be6 Bg2 Bef5 Nf6 e8B f1N+ Kf4 Ba2 Bf7 Ne3 Kg3 Ne8 Qf1 Ng4 Bg8 Nf2 Bgc4 Nb7 d8B Bb3 Bh4 Nd8 Bb5 Bc4 Bbd7 Bf7 Bde6
1B3Q2/1N2q1Rn/Nk3Nrb/N1qN1q2/2Rn4/Rq5r/2B2b2/KbrQ2nQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 b4 c5 d4 Kc7 Kd2 h5 Kc3 a5 Kb2 f5 g4 f3 e5 h3 e6 h4 d6+ Kb6 g5 f4 g6 h2 g7 f2 d5 h3 e7 f3 e8R a4 d7 c4 d6 Nf6 g8N Ra6 Bf4 Qe7 d8N Nc6 d7 Nh7 Bd3 f1Q Nb7 f2 Nc3 Bh6 Bb8 Nd4 Bc2 Qd3 Nf3 f1Q Ne5 Qff5 Rg1 h1N Rg7 h2 Nf6 Nf2 Ra3 h1R Ka1 Nh3 Nc6 Ng1 Nca5 Rh3 Qf3 Rg8 Qh1 Qg3 Nd1 Qb3 Ne3 c3 Rf8 Ra8 Rff7 Ra6 Rg4 Rg6 d8Q+ Qc7 Qdd5 Qe7 Rg7 Bd7 Rh4 Bc6 Qdf3 Be4 Qd1 Ra8 Be5 Rc8 Ned5+ Ka7 b6+ Ka6 Bb1 c2 Bb8 c1Q Rf4 Qcc5 Bc2 Bd3 Re4 Ne6 Rc4 Nd4 Nd8 Rc7 b7 Rc6 Bg3 Ka7 b8N Be4 b5 Rc7 Nb4 Kb6 N8a6 Rc6 Bb8 Rc8 Ra2 a3 Ndb7 Qg3 Rb2 a2 Rb3 Qd3 Ra3 Qe3 Kb2 a1B+ Kb1 Bc3 Ka2 Be1 Ka1 Bg3 Bd6 Ka7 Nbd5 Qb3 b6+ Ka8 Nd8 Bf2 b7+ Ka7 Nf4 Kb6 b8Q+ Bb7 Qa8 Be4 Ndb7 Rc7 Qf8 Rc6 Bb8 Rc8 Qf1 Rc7 Bd1 Bb1 Bc2 Rc6 Qe2 Re6 Qf1 Re1 Qd3 Rc1 Qf1 Qa4 Qd1 Qb3 N4d5+
n3q3/1b2Q3/4B1bq/1rb2Q2/r2RnNKB/q2B2N1/1b5R/1rkBnBNQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 b4 Kd5 g4 Kc4 e4+ d3 c3 a5 b6 h5 e5 d5 e6 f5 g6 a4 g5 a3 e7 a2 e8Q d4 g7 h4 b5 h3 g6 h2 b7 Bc5 b6 Nf6 Qe4 Rh5 Bh3 d2 Bb2 Ra4 Qe7 Kd3 g8B Ne4 c4 Nd7 b8N Qe8 g7 Bb7 Nc3 Rg5 Rc1 a1B Be6 Rh5 Ba3 Bb2 g8B Rg5 Qe1 d1N Na6 Ne3 Nd5 Ng2 Rd1+ Kc2 Bh7 d3 Bg6 d2 Bg4 Bc6 b7 Nb6 b8Q Bb7 Qc8 Na8 Bb4 Rh5 Bc3 Rg5 Bf6 Rh5 Bh4 Rg5 Rb1 d1R Qf1 Re1 Rd1 Rh5 Rd4 Rb1 Qc6 Rg5 Qf2+ Kc1 Bh3 Bb6 c5 Ne1+ Ke2 Ba7 Bf1 f3+ Ke3 Bb6 Nf4 Ba7 Qd5 Rh5 c6 Bc5 Qg2 f2 c7 Rg5 c8B Rh5 Be2 f1B Bd1 Bd3 Bcd7 Rg5 Bb5 Bc2 Bf1 Rh5 Nfh3 f4+ Ke2 Rg5 Qf5 f3+ Ke3 f2 Kf4 Rh5 Kg4 Bd3 Nf4 Bc2 Bb5 f1Q Qf3 Qf2 Bf1 Qe3 Qh3 Qa3 Qg2 Bb4 Nc5 Bd3 Nd7 Bc5 Nf6 Rh7 N6h5 Bc2 Ng3 Rh5 Nf3 Bd3 Rg1 Bc2 Qh1 Bd3 Rg2 Bc2 Qg1 h1Q Rh2 Bd3 Rh3 Qh2 Qh1 Qd2 Rh2 Qe3 Nd5 Qh6 Nf4 Ng5 Qe4 Bb4 Qd5 Bc2 Bgd3 Bd6 Bb5 Bg6 Bbc4 Ne4 Ng1 Bb4 Bcd3 Rf5 Qdd6 Rb5 Qd5 Bc5 Qf5
bNR3B1/1qq1N3/3B1rQK/nN2n1Rb/2Q1Q1B1/1k2NN2/rr3b2/4q1bn b - - 0 1 illegal: No possible last move, all moves rejected
2n2bKB/1BBn2Q1/q3R2R/1k2Q2R/b2rNq2/3nrqn1/1N2NR2/1r3bR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Kd6 e7 c3 e8R h2 b6 h4 b7 c2 b5 h3 b6 a3 g6 a2 g7 Qf6 Re6+ Kd7 d6 Kc6 d5+ Kc5 d7 Nh6 d8R Nc6 b8B Bb7 g8N Ra4 d6 Ng4 d7 Rd4 Bg2 Kb5 Bb2 c1N Bc7 Nd3 Nd2 Qf7 Qe2 Nf6 Nc4 Ne7+ Qe4 Rh7 Ne2 Bc6 b7 Nc8 Rag1 a1R Bc3 Rh6 Nb2 Rb1 Rde8 Rg6 d8R Nd7 Nf6 Rg8 Rd6 Qa2 Re7 Qa6 Ree6 Rg7 Rde8 Re7 b8Q+ Ncb6 Qa7 Nc8 Rd8 Re8 Re1 Re7 Rhf1 h1N Rf2 h2 Rg1 Ng3 Re8 h1Q Rd8 Bg7 Rh8 Bf8 Rh5 Qh4 Bh1 Qg5 Kg2 f3+ Kh3 Qc1 Kh4 Qf1 Kg5 f4 Qe3 Qg2 Ne4 Qh3 Rff1 f2 Reh6 f3 Kg6+ Re5 Kf7 Qh4 Kg8 Qf4 Rc1 f1B Rc2 f2 Rde6 Bd5 Rd2 Bb3 Bg2 Qf3 Qg5 Ba4 Qg7 Rdd5 Qe3 Rd4 Bh1 Bg2 Qf4 f1Q Rc2 Qc1 Qff6 Qcf4 Rd2 Rc5 Qe5 Bf1 Nf6 Qg5 Qf5 Qe4 Nc1 Re5 Qgg6 Rb4 Rf2 Qg2 Ne2 Qe4 Bg2 Qee3 Bb7 Qf3 Qf4 Re3 Ne4 Qf5 Bh8 Rd4 Qg7 Qe5 Bd5 Qf5 Qfe5 Q5f4 Bb7+
1r2q1b1/KN3qk1/5NBB/3Nn1bq/b4RNQ/B2nR1QR/4b3/r2n1rN1 b - - 0 1 illegal: No possible last move
3B1q1B/2K2bk1/3Nr2R/5bbr/nQRnnRB1/N5n1/nn2N3/Q2RR2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 Kf7 d4 g5 e5 c4 e6+ Kg7 h5 c3 d6 a4 d7 f3 Kg3 f4+ Kh2 a3 d5 c2 b6 a2 b5 g3+ Kh3 g2 Kg4 f2 Kf5 f3 Ke5 g4 e7 g3 Kd6 Nc6 b7 Nd4 b8R Ra6+ b6 Nf6 Ne2 g1R Rh4 g2 Na3 Rh1 Bg5 c1N Rf4 g1N Bh3 f1B Bg4 f2 Qa4 Qe8 d8R Bf5 Rbc8 Nh3 Rc4 Ne4+ Kc7 Qf7 b7 Re6 Rb1 a1N b8Q Nab3 d6 Nbc5 d7 Na2 Qbb4 Qf6 e8R Be7 Rd1 Qf8 Rb8 Bg2 d8N f1N Rb6 Nfg3 Nf7 Nhf2 Nd6 Nfd3 Qaa5 Na4 h6+ Kg6 Bf6 Ndb2 Bh4 Bg5 h7 Kg7 Rbc6 Rh6 Re6 Rh5 Rh6 Bh3 Rcc1 Be6 R6c4 Bf7 Re1 Rg8 Rcd1 Rh8 Bf3 Bf5 Bg4 Qa8 Qa7 Re8 Qa6 Re6 Qaa5 Bf6 Qa6 Qf8 Qaa5 Be5 Bd8 Bf6 Qe5 Nc6 Qec3 Nd4 Qc1 Be7 Qa1 Bg5 h8B+
2n1B1qn/2K5/2R1R1n1/1Br1N1nr/1n1R1R1N/kNrQ1bB1/r1r1Q3/1R2b3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 h3 b6 h2 b7 c4 g6 f3 d6 h4 d7 f2 g7 c3 d5 h3 d6 f4 Ne2 f3 Bd2 a4 Ng1 a3 Bh6 c2 Qe2 c1R Qd1 a2 Bb5 f1R Kd5 f2 e5 Nc6 b8N Na7 e6 Rc3 Qe2 Rfc1 e7 f1R e8B R1c2 Bf4 Rfc1 Nf3 Nh6 g8R Nf7 Re1 h1N Bg3 h2 Rg6 Nf2 Nbd2 h1N Rb1 a1N Nc6+ Ka3 b4 Rh5+ Nce5 Ng4 Nh4 Nh8 Nb3 Nhf2 Rf6 Ne4 Rf4 Qg5 d8Q Bb7+ Ke6 Bh6 d7 Qg8+ Ke7 Ng5 Kd6 Bc6 Kc7 Bf8 Qc8 Bc5 d8R Bf3 Qd7 Nc8 Qdd3 Ra5 Rd6 Bf2+ Rc6 Ra2 Rd4 R1c2 Rf1 Be1 Rf2 Bg2 Rf6 Bf3 Re6 Bf2 Rf1 Be1 Rf2 Bg2 Rff4 Bf3 Ba6 Rac5 b5 Qg6 b6 Qg8 Neg6 Ne5 b7 Nef7 Ne5 Ng6 b8R Nfh8 Qh2 Rg2 Rb6 Nc2 Bb5 Nb4 Rb7 Rgb2 Qhe2 Rbc2 Ba4 Ra1 Na5 Na2 Rb1 Nb4 Nb3 Raa2 Bb5
bR1QN2r/n1qRn3/6QB/1n3QR1/1k1BBn2/r3r2N/1K1RnR2/2rb2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 e4 a5 g5 h3 b6 c4 b7 f3 b5 a4 g6 f4 b6 f2 g7 h2 Bb2 f3 Qd2 a3 Be2 f1N Qc2 h4 Ra2 f2 Nh3 Ne7 g8R Ng3 Nd2 f1R Bf3 Nbc6 b8R Nh5 b7 Rc1 Rg5 Nf4 Rf1 h1R Rf2 Na7 Ba1 Bg4 e5+ Kc7 d6+ Kb6 d7 Ka5 d5 Qc7 d8B Rhe1 Be4 Bd1 d6 Bg7 Rb2 a2 d7 Re2 Rc8 Bf8 b8R Re3+ Bd3 Bh6 Ne4 Bg7 Nd6 Bh6 Ng1 h3 Ne8 h2 Nh3 h1B e6+ Bd5 R2b7 Bf8 Kb2 c3+ Ka3 Bg7 Be4 Bd4 Bb2 a1N Rd2 Nf5 e7 Nb3 Qd3 c2 Rf2 Bb6 Bd4 Bc6 Kb2 Kb4 Rd2 Nb5 Qf1 Ra3 Qf3 Na7 Qg4 Nd6 Qf5 Ndb5 Rf2 Na5 Rd2 Qd6 Bc7 Bd5 d8Q N5c6 Rf2 Bc5 Bb6 Qe5 Rd7 Qc7 Rd2 Rg3 Bg7 Bg1 Bh6 Rgd3 Bd4 Re3 Bd3 Bh1 Be4 Bhf3 Ng7 Bh1 e8Q Ne7 Qeg6 Bg2 Ne8 Bgf3 Bd3 Ba8 Rf2 Rca1 Be4 c1N Qa6 Nce2 Qag6 Qb7 Rc2 Rc1 Rd2 Qc6 Nf6 Qc7 Ne8
nQ1NB1b1/1Q3rR1/1br1R2n/1nRb1r2/4QBbn/1k3nK1/3N1NR1/2R3q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 h5 e4 a5 d4 f5 b6 c5 g5 c4 b7 c3 g6 c2 b5 h3 g7 f3 b6 h4 Bd2 c1R Qb3 a4 Bb5 a3 Bd7 h2 Bc6 a2 Be8 h3 Bc6 f4 Ne2 Ra7 Ba4 Na6 b8R Nh6 g8R Rc6 b7 Bg4 Qc4 Qg5 Bc2 Nc7 Bc1 Na8 Rg1 h1B Rc8 h2 b8Q+ Rac7 Qbb5 Rf7 Nd2 Rf5 Qb6 Rh7 Nc3 Rhf7 Rg7 Bg2 Qb1 h1B Qb7 Qg6 Rb1 a1N Ba4 Nc2 Nd1 Na3 Qd3 Bf1 Rg2 Nb5 Qe3 Bc4 Qe2 Ra6 Rc5 Rc6 Qd3 Be7 Ra1 Bd8 Qb1 Bc7 e5+ Ke7 d6+ Ke6 d7 Bb6 d8Q Qg5 Kg1 f2+ Kh2 f3 Qe4 Bd5 Kg3 f1N+ Kf2 Ba2 Qdb8 Nh2 Kg3 f2 Rb1 Nf3 Ra1 Bc7 Rb1 Nh4 d5+ Ke7 d6+ Ke6 d7 Bb6 Nc4 Qg6 Bf4 Bb3 Nd2 f1N+ Kf2 Qg5 Rc1 Nh2 Kg3 N2f3 Nf2 Qe7 R5c4 Qb4 Rc5 Qd4 Nd3 Qg1 Nf2 Ke7 e6 Kf6 e7 Ba2 Qb1 Ke6 R5c3 Kd5 d8N Bc4 e8R Kc5 Qe4 Kb4 R3c2 Ka3 Re6 Ba2 Rc5 Bd5 Nc4+ Kb4 Bc2 Kc3 Bd3+ Kb3 Q8a7 Rfc7 Qe2 Rf6 Bg6 Ne5 Be8 Be4 Rd6 Bh7 Qab8 Bg8 Re6 Rcf7 Qe1 Rf5 Qe2 Qe1 Rg1 Bd5 Qe4 Nef3 Rg2 Qg1 Nd2+
2R5/q5Bb/n1n3B1/nBnr1bK1/Nn1BN1RQ/2r3B1/1Q1Q2n1/1N1k2bq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 Kd4 b4 c5 b6 f5 g5 a5 d3 h5 b5 c4 b7 c3 d6 h3 e5 h4 b6 a4 e6 h2 d7 a3 g6 a2 e7 h3 e8B c2 g7 Qe7 d8B Ra5 Qe1 Na6 b8N Qa7 b7 Bc5 Bd2 c1N Qd1 Ne7 g8Q Nb3 Bb6 Rh5 Qg5 Ra3 Qg2 Na5 Nc3 Rb3 Rb1 a1N Rc1 Nc2 Nd7 Ncb4 b8B Ra3 Nb1 Rg5 Kf2 f3 Nf6 f4 Ne4 Be6 Be2 Bg8 Qc2 Bh7 Bg6 Rf5 Qg5 Re5 Qh4 Rb3 Kf1 f2 Bc3+ Ke3 Qb2 Rf5 Bg7 Bd4 Rc8 Nec6 Nf3 Rc3 Nfg5 Bc5 Rg1 h1N d4 h2 Kg2 f1N Kh3 f3 Kg4 Nf2+ Kh5 h1Q d5 Nfd3 Rg2 f2 Rg4 Bd4 Nc5 Re5 Na4 Rf5 B6c7 Ndc5 d6 Re5 d7 Rf5 Bd3 Re5 Bc2 Ke2 d8Q Ne3 Bcd3+ Kd1 Bb5 f1B Qd7 Rf5 Bg3 Ng2 Bbe5 Bd3 Bef6 Re5 Qd6 Bf5 Ne4 Qb6 Kg5 Qa7 Bd3 Bg1 Bb5+ Ncd3 Qd4 Rd5 Qdf2 Ndc5 Bd4 Nab3 Qe3 Nba5 Qed2#
3N2Rk/1n2qb2/Rr2nb2/B2qR3/q4rQN/R1Q1BR2/4Nq2/KB1q1qn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 c5 Kd2 h5 Kc3 a5 b4 f5 Kb2 Kf7 g4 Kg7 e4 f3 e5 f2 d6 c4 d7 h3 b6 a4 e6 f4 b7 h2 b5 c3+ Ka2 h4 b6 c2 e7 f3 e8Q h3 g5 a3 g6 Rh6 d5 Ne7 d6 Nf5 Qf7+ Kh8 Qe2 Ng7 Qfc4 Ne6 Qd1 Qe7 d8B Bg7 d7 Ra4 Qc3 Bf6 Bd3 f1Q Ne2 f2 Be3 Rf4 Nd2 Nc6 b8R Na5 Ra8 Nb7 Ra6 c1N+ Kb1 Qe1 Rf1 h1Q Nf3 h2 Nh4 a2+ Kb2 Qg1 Bb1 h1Q Qa4 Qd1 g7+ Kg8 Bc7 Qhd5 d8N Rg6 Re1 f1Q Qe4 Kh7 g8R Qgf2 Qf3 Bd7 Qg4 Be8 Ra3 Bf7 Rf8 Nbc5 b7 Qa4 b8R Nb7 Ba5 Kg7 Rh8 Qad1 Rh5 Qa4 Re5 Kh8 Rd1 Rh6 Rd3 Rg6 Bd2 Qad1 Rf3 Qa4 Nd4 Ne2 Be3 Ng1+ Ne2 Qad4 Ra8 Qdd1 Ra6 Qa4 Bf5 Rh6 Rc1 Qad1 Bb1 Qa4 Rd1 a1Q+ Kc1 Qd3 Nc6 Qa2 Bd2 Nec5 Be3 Bg7 Rb6 Q2c4 Kb2 Re6 Ka1 Bf6 Ra6 Qcd4 Nb8 Rb6 Nc6 Qd4c4 Bc2 Ne6 Bb1 Qdc2 Rd4 Qcd1 Rd8+ Bg8 Rf8 Qcd5 Nd8 Q1d4 Rf7 Qdd1 Rg7 Bf7 Rg8+
1k1nB2R/b3q1R1/1Q1q2bK/Qr1nnq1Q/B2B1r1n/R2Q1q2/1N5N/4n2Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Kg4 c5 Kh5 Kc7 d4 f5 e4 c4 g4 h3 b4 f3 e5 h2 e6 c3 e7 a4 e8R f4 g5 a3 g6 c2 g7 f2 Bg2 f1N Bh3 f3 Bb2 c1N Bd7 f2 Nc3 a2 Nf3 Bc5 Rg1 h1Q+ Nh2 Ra5 Na4 Ne7 g8B Nd3 Bf7 Nf5 Rg7 Nc6 b6+ Kb8 b7 Rf8 b5 Ba7 d6 Nh4 d5 Qe7 Kh6 Ne3 Bd4 f1Q Qh5 Qf5 Nb2 Nd8 Bg6 Rf7 Rh8 Ne5 Be8 Qd1 d7 Rf8 d6 Nd5 Bgf7 Nb6 Bb3 Nd5 Ba4 Qdf3 Rag1 a1N R1g3 Nc2 Rh3 Qd1 Rhg3 Ne1 Ra3 Ndc6 d8Q Rf7 Qd7 Nd8 Qc6 Be6 d7 Rf8 Rb3 Bf7 Ra3 Bg6 Qc5 Qfe6 Qc2 Rf4 Qd3 Qc2 Ra2 Q6d6 Ra3 Ne6 d8Q+ Qc8 Qb6 Nd8 Qc6 Qf5 Qc1 Nc2 Qcf1 Ne1 Qh1 Ne3 Qhe4 Kc7 Qg4 Qff7 Nf1 Nhg2 Qh3 Nd5 Qee2 Nf6 Kg5 h5 Kh6 h4 Qh5 Nd5 Qh3f3 h3 Qfd1 h2 Q1b1 h1Q Nh2 Qf1 Qbd1 Qf3 Qa1 Nc2 Qh1 Qdf6 b6+ Kd6 Qc4 Nh4 Qd3 Ne1 b8Q+ Qc7 b7 Qf5 Qd1 Qe7 Qd3 Rc5 Qc8 Qb6 Qe6+ Kc7 Qf6 Qb4 Qfa6 Qb6 Qa5 Rb5 Bf7 Kd7 b8Q Qbd6 Qbb6 Kc8 Qc5+ Kb7 Be8 Kb8 Qcb6+
r4Q2/1bQ1RBnB/1Q1K1NQ1/3b4/b6b/NkN3r1/2rbQB2/n2q1rqR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 a5 g4 h5 d6 c5 d7 h3 b6 h4 g5 h2 d5 f3 g6 f2 d6 a4 b7 a3 g7 a2 b5 f4 b6 h3 Bg2 f1Q e4 f3 Bf4 f2 Ne2 Nf6 g8N Be7 Be3 Nh5 Rg1 Na6 b8Q h1B b7 h2 Qc7 Nb4 b8Q Ng7 Qe1 Rh7 Na3+ Kb3 Qba7 c4 Qa6 Nc2 Nc3 Bb7 Bf3 Nf5 Rg7 Rh3 Qe2 Bh4 Re1 Qg5 d8Q a1R Qf8 Rc1 d7 Na1 Qh6 Bg2 Nf6 h1B Bh5 Bc6 Bg6 Rc2 Bh7 Ba4 Qg6 Bf3 Rf7 Qgg2 Ke6 Rg3 e5 Bb7 Re7 Qh2 Rc1 Qe1 Bb6 Qd2 Rg1 f1R Bf2 Bhg2 Rh1 Qg1 d8Q Qd1 Qd4 Ng7+ Kd6 Bgd5 e6 Qg2 Rd7 Qg1 e7 Ra2 Ncb5 c3 e8B c2 Qdb6 c1B Bf7 Bd2 Re7 Rc2 Nc3+
2nbqrN1/3Q1BqB/bk2q1r1/B1qBN3/5nQ1/1B4K1/R2R1n2/qNn1Q3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 g4 Kd7 b4 Kc7 e4 a5 c4 h5 e5 f5 g6 d3 g5 d4 g7 f3 c5 h4 g6 f4 c6 d2 e6 h3 e7 h2 e8B a4 Ne2 a3 Qb3 d1N+ Ke1 d3 Nec3 a2 Bg2 Ba6 Qe6 Ne7 g8B Rh6 g7 Ne3 Kf2 d2 Qg4 d1Q Bb3 Rg6 g8B Nc8 Bh7 Q1d5 Bd2 Qc5 Bef7 Nd7 Rd1 Be7 Ne4 Kb6 c7 Qe8 Nf6 Bd8 Ng8 Ne5 Be1 Nd5+ Rd4 Nce7 c8Q Rb8 Qcd7 h1N+ Kf1 f2 Rd2 Nd3 Ke2 Ne3 Bgd5 Nc8 Kf3 f1Q+ Bf2 Qfc1 Be1 Nc2 Kg2 f3+ Kh3 Nhf2+ Kg3 Qb2 Rd1 Bb7 Rd2 Ka7 b6+ Ka6 Re2 Nd4 Rd2 Nc1 b5+ Ka5 Qc6 Qbc3 Qd7 Ba6 b7 Ne6 b6 Ra8 b8N Qg7 b7 Nf4 Nc6+ Kb6 Ne5 Rb8 Na3 Ra8 Rb1 a1Q Rbb2 Qe6 Nb1 Qa4 Ra2 Rb8 Qe7 Qe8 Qh4 Nd1 Qh1 f2 Qe4 f1Q Qe2 Ra8 b8Q+ Bb7 Qe4 Nf2 Qa4 Qa6 Qd7 Qaa5 Nf3 Qaa3 Qe5 Ba6 Qe2 Qab2 Ne5 Qa1 Ne7 Bc7 Ng8 Qd8 Bbc4 Nd6 Bb3 Qde7 Rd4 Rf8 Bd2 Bd8 Qe1 Qe8 Bb4 Nc8 Rdd2 Qh6 Bc3 Qg7 Ba5+
2r1k2K/5b2/RR5Q/2r1n3/Bb1QqR1N/Q1QN1nqr/b1r3b1/2BqQ1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 h3 e4 f3 d4 f4 b4 c4 d6 c3 g5 h2 b6 c2 d7+ Kf7 d5 h4 b7 h3 d6 f2 g6+ Kg7 b5 f3 b6 a4 Qd4 a3 Nd2 a2 Nb3 Nh6 Nc5 Rh7 Bb5 f1B Ba4 f2 Nf3 Be2 Qc3 f1R Nh4 Qc7 d8Q Ra5 Qg5 Rf2 Rf1 Nf5 Qh6+ Kg8 Kf6 h1Q d7 h2 d8B Bc4 e5 Nc6 b8R B8e6 g7 Bf7 e6 Qe4 e7 h1B e8Q Ne5 b7 Bg2 Nd3 Rc5 Qd4 Rd2 Rf4 Bb3 Qc3 Nd4 Qd7 Ndf3 Qdd4 Bbe6 Qa3 Qd6 Bb6 Rc8 Qdc3 Qc7 Bg1 Bb4 Ra8 Re2 Rb1 a1Q b8Q Ba2 Ra6 Rf2 Qb6 Rd2 Bb2 c1R Qbd4 Rdc2 Qe1 Rc5 Qec3 Rc2 Bc1 Qd7 Rb3 Qg4 Rb2 Qg3 Rb1 Ba5 Rbb6 Bb4 Qe1 Bh5 Qdc3 Rf2 Ng6 Qh2 Bd2 Nc4 Qg5 Qd1 Bc1 Rc2 Qge5 Qg3 Qd6 Bg4 Qdd4 Rh3 Nh4 Be6 Qdf2 Nce5 Qfd4 Kh7 g8Q+ Kh6 Qf8+ Kh7 Qh6+ Kg8 Qh5 Kf8 Qh7 Bf7 Qh5 Rb5 Qg5 Ke8 Kg7 Bh5 Kh8 Bhf7 Bb3 Rd5 Qh6 Rdc5 Ba4+
Q1b2bB1/N3qr2/3qk1r1/N2nr2Q/BRR5/1Qb2qbQ/1BNq1n2/1K3Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc2 f5 g4 c5 e4 a5 b4 c4 d6 a4 b6 a3 b5 f3 e5 h3 b7 a2 b6 f4 d5 f2 g5 f3 g6 h4 g7 h2 Nd2 c3 Nc4 h3 Rb1 a1B Bb2 Ra4 Ne2 Ne7 g8B Ra5 Nd4 Nbc6 b8Q Rh6 b7 Rg6 Qa8 Nb4+ Kc1 c2 b8Q Rc5 Na5 Qc7 Be2 f1R Bb5+ Qc6 Qe1 f2 Ba4 Rb5 Rg1 h1Q Rg4 h2 Rf4 Qg2 e6+ Kd8 d7 h1Q Rg4 Qh7 Qh2 Qf3 Qh3 Qd6 Qd1 Kc7 d8N Qh4 N8c6 Nd3+ Kd2 c1B+ Kc2 Qhf6 Na7 Bf4 Rc1 Rc5+ Kb1 Bg3 Nc2 Qg5 Rb4 Qd2 Ba3 Bc3 Bb2 Re1 Qe2 f1Q Qeg2 Q1e2 Qf1 Kd8 Qb7 Rc7 Qb8 Qc6 d6 Nd5 d7 Ke7 Qb6 Kd6 e7 Nf2 e8Q Qe7 d8Q+ Ke5 Qf7 Qcd6 Qfh7 Kf6 Q7h5 Re5 Qe8 Qh7 Qec6 Rf7 Qa8 Qg7 Re1 Ke7 Ree4 Qgf6 Rg4 Ke6 Rbc4 Qe7 Qb3 Qh6 Rb4 Qd2 Rgc4+
RBB1Q3/N2QBN1b/2rqqnn1/1B2b1q1/n1R1rk1R/2q5/b5B1/3b2KQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 a5 d6 h5 d7 f5 d3 c5 b6 c4 b5 c3 b7 f3 b6 f4 g5 c2 g6 h3 g7 h2 Be2 a4 Qf1 h4 Nh3 a3 Qe1 a2 Qd2 Ra6 Rg1 h1Q Qe1 Ne7 g8B Ng6 Rg4 Bg7 Ba3 c1N Be7 Nb3 Bf1 Nc5 Be6 Na4 Bg2 Qh2 Qh1 Re8 Ng5 h3 Na3 Bf6 Kf1 f2 Rc1 a1Q Nb5 Qc3 Na7 Qg3 Rh4 h2 Bg4 Qdc7 d8Q Qd6 Rc2 Be6 Qd7 Ba2 B4h3 Qg4 Rc1 Qge6 Nf7+ Kd4 e5 Ke3 d4 Bg7 Qg1 h1Q d5 Qh2 Rc2 Qg3 Qh1 Qg5 Rc1 Qd2 Rc4 Qc3 Qd8 Nd7 b8Q Nf6 b7 Rc6 Qd7 Bb3 Qbc8 Bd1 b8B Bh8 Bg4 Bg7 B2h3 Bh8 Kg2 f1B+ Kg1 f3 Bg2 Bd3 B4h3 Qda3 d6 Bb1 Qcd8 Ba2 Bg4 Rg8 Q8e8 f2+ Kh2 f1B Kg1 Bd3 B4h3 Qef5 e6 Rg7 Qdc8 Rg8 d7 Qd6 d8R Be4 Bg4 Kf4 Qcd7 Qfe5 Bc7 Bg7 Ra8 Rh8 Bb8 Qed5 Bd8 Qdf5 e7 Qe6 Qg8 Rh7 e8B Bh8 Be7 Rh6 Rh2 Rh3 Qf8 Re3 Rh4 Bg7 Rc5 Bf5 Rc4+ Re4 Nh8 Ng8 Rh2 Nh4 Nf7 Qeh6 Qc7 Be5 Bh5 Ra6 Bg4 Bh7 Bc8 Qhe6 Bb5 Rc6 Qe8 Nf6 Qcd7 Ng6 Rh4+
b1B1BBK1/qNQ5/2NqR3/q7/4Q1Q1/2bBRB2/br1r2q1/n1rNbk1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 g4 a5 b4 f5 b6 h5 g6 d5 c3 f3 g7 h4 b5 f2 b7 h3 g5 d4 b6 a4 g6 a3 Bf4 a2 Qd2 h2 Be3 f4 Nh3 f3 Qe1 Be6 Ng5 Nf6 g8Q Nh5 g7 Na6 b8Q Ng3 b7 Nc5 Nf7 Qa5 Kf6 Nb3 e5 Bb4 Nd8 Rh5 Qd6 Rc8 b8N Rh7 Bg2 f1Q Nbc6 f2 Bh6 d2 Qc7 Kd3 c4 d1Q c5 Qg1 Nb7 f1Q+ Bf3 Qfg2 Nc3 Qe3 Rb1 Na1 Rb3 Bd5 Rg1 h1B e6 Qdd2 Kf7 Rh8 Bg5 Rh2 Be7 Qef2 Bf8 Qf4+ Kg6 Qd6 Qe4+ Kd2 Kf7 d3 Rc1 Qe3 Nd1 Ke1 Rc2 Kf1 Re2 Be1 Rb6 Qeg1 Re3 d2 Ra6 Nc2 Rb6 a1B Ra6 Ba2 Rb6 Bb1 e7 Bc3 e8B Na1 Na7 Qd3 Re6 Ba2 c6 Qda6 Qg4 Qd3 Qh7 Qd6 g8B Rb8 Qhe4 Rd8 Nf2 d1R Bh7 Rc1 Nd1 Rb8 Kg8 Q1f2 Nc5 Rb2 Nb7 Qfg1 Qd7 Rd2 c7 Rb2 Nc6 Q1f2 Re2 Qfa7 c8B Qdb8 Qe5 Q7c5 Na7 Qcd6 Bd5 Qf3 Nc5 Qf6 Re3 Rhd2 Qc7 Qf3 Bd3+ Qe2 Ba8 Bb7 Qd5 Nh1 Qe5 Ba6 Bae4 Bb7 Bf3 Ba8 Qee4 Qbb6 Nc6 Qba7 Bc2 Qeh2 Nb7 Qg2 Bd3+
1n1NNnr1/7R/1bq1qq2/3b4/1q4R1/kR2Q1Kn/1r2BRbB/Nn2Q1BR b - - 0 1 illegal: No possible last move, all moves rejected
q3rbNB/2q1QN2/RQBq2q1/1R6/1nnb2n1/k2Br2b/BR3B2/N3b1K1 b - - 0 1 illegal: No possible last move, all moves rejected
1n3RB1/nr4k1/1RQ1KN1N/5B2/1Q2bBq1/1NbpB1r1/QnqbB1r1/3q4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 e5 Kc4 h5 Kd5 a5 g4 a4 f4 e4 c4 d6 b4 h3 b6 a3 b7 a2 f6 h2 f5 e3 b5 h4 g5 h3 g6+ Ke8 g7 Kf7 c5 e2 c6 e1B c7 Ra3 Nd2 Qd7 Ne2 Na6 b8Q Rh7 b6 Rg3 Rb1 a1Q b7 Qc3 Qa8 Nb8 Qb3 Qd3 Qba3 Qc2 Qa2 Be7 Rg1 h1R Rb6 Rh2 Rg2 Qda4 Rf2 Qd7 Rf4 Rf2 Q8a4 h2 Qb4 h1N Nb3 Rfg2 Rf3 Nf2 Bg5 d3 Ned4 d2 Be2 Nc6 b8B Bb7 c8B d1Q Bc7 Bd2 Be3 Nd3 Rf1 Nh6 g8B+ Kf8 f7 Bf6 Rf2 Nb2 Rf3 Ng4 Rf2 Kg7 f8Q+ Kh8 Qe8 Nge5 Rf1 Bg7 f6 Qg4 f7 Nd7 f8N Ndb8 Nf5 Bgc3 Nh6 Rg7 Nd7 Na7+ Rc6 Re7 Rf8 Kg7 Nf6 Rf7 Bf5 Rd7 Ke6 d5 Qb6 d4 Bcf4 d3 Qb4 Rc7 Ra6 Be4 Rb6 Rb7 Qc6
nNbqr2B/6r1/nqBNk2q/2RB3Q/RnNB2pB/8/2Qb2K1/1Rb1r3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 b6 a4 e6+ Ke7 b5 f4 h5 c4 d6+ Kf6 e7 c3 e8B a3 h6 c2 h7 a2 d5 Qd7 b7 Ke5 b6 Na6 b8Q Ne7 b7 Ra7 Nc3 Bh6 Bb2 c1B Bc4 Qd8 Bc6 Re8 Qc7 g3+ Kf1 f2 b8N Rb7 Kg2 f1R Qh5 Re1 h8B+ Kf5 Rb1 a1N d7 Nc2 d6 Ncb4 Rh4 Ned5 Ne4 Nb6 Bbd4 Na8 Nf3 Ra7 Ne5 f3+ Kh3 g2 B4d5 g1Q Nc4 f2 Rg4 Qf6 d8B Bd2 d7 f1Q+ Rg2 Qf4 Rg4 Qge3+ Kg2 Q4d6 Be7 Qc5 d8R Qb6 Qch2 Qf8 Bef6 Rg7 Rd7 Qd6 Rb7 Qbd8 Rb5 Qb6 Rc5 Qdd8 Rg3 Qf4 Ra3 Qfd6 Ra4 Qe6 Q5h3+ g4 Bh4 Bc1 Qc3 Bhd2 Qc2 Qg6 Bdf2 Qgg5 Ned6+ Kf6 Bd4+ Ke7 Bg3 Qe3 Qh5 Qh6 Be4 Ke6 Bh4 Qhg5 Bf3 Qh6 Bfd5+
1r6/1nBB2R1/bQ1Q1b1Q/1p6/q1r2nnR/1Qbr1qN1/2qR2NQ/1N2k2K b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 Kd6 g4 c5 f4 h5 Kf2 e5 Kg2 b5 f6 e4 a5 b3 f7 e3 a6 h3+ Kh2 c4 g5 h4 f5 c3 g6 c2 f6 e2 g7 e1B a7 b2 Qh5 Nd7 Ne2 Rb8 a8N Nc5 Ra7 Ne7 g8Q Ng6 Nb6 Nf4 Ng3 Be7 f8Q Nb7 f7 Bc3 Qfh6+ Bf6 f8Q+ Qe7 Bd2 c1R Be2 Rh7 Bg4 Rd1 Bc1 Rd3 Bd7 Rh8 Qd8 Qe4 Kg1 Qf3 Rh2 Qg4 Kh1 Rh7 Rd2 h2 Ra4 Re7 Rb4 Re4 Qdf8+ Kc7 Nc4 Qf3+ Rg2 Qd1+ Rg1 Qa4 Ne3 Kb6 d6 Ka5 d5 Rc4 Qe6 Rc5 Re4 Rc4 Qd8+ Kb4 Qb6 Nc5 Rg2 Ba6 Qh3 Nb7 Qf7 Bcd4 Bd2+ Kb3 Ba5 Bc3 Rd2 Ne6 Rg4 Nf4 Rg7 Qa1 Bc8 Nh5 Kg2 h1N d7 Nf2 d8Q Ne4 d6 Nf2 d7 Qa4 Na3 b1Q Qa7 Qc1 Bc7 Qd1 Nd5 Rf4 Qb6 Qc1 Nb1 Rb4 Rd1 Kc2 Qfe6 Qb2 Rd2+ Kc1 Qde7 Qbc2 d8R Re4 Rd7 Rb4 Rg4 Nf4+ Kh2 Rbd4 Ne3 Rb4 Qb3 Rc4 Rg5 Ng4+ Kg1 Ba5 Rh5 Bac3 Qh1 Bb4 Qed6 Bbc3 Rg7 h3 Rh4 h2+ Kf1 Ne6 Qg2 Nf4 Bd7 h1Q+ Qg1 Qc6 Qh2 Qd5 Kg1 Qf3 Ng2 Nd5 Kh1 Nf4 Re2 Kd1 Rf2 Qe2 Ne3+ Ke1 Rg2 Qed1 Rd2 Qf3+ Ng2+
Nr1bkQn1/RBB1p3/1qNBRq2/1N3N2/2Q5/nqN1r3/2bb2R1/r3nK2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 h5 d4 a5 f4 c5 b4 a4 f5 h3 d6 h2 b6 c4 b5 e3 d7+ Kf7 d5 e2 f6 c3 d6 h4 b7 c2 g5 h3 b6 a3 g6+ Ke6 g7 Kf7 Qd4 a2 Ba3 c1B Qc4+ Kg6 f7 Be3 Nf3 Nh6 g8N Nc6 b8B Nd4 b7 Qb6 d8R Nb5 Bg2 Bf5 d7 Bc2 Bad6 Ra3 Rg1 h1Q Bbc7 h2 b8N Bc5 Rc8 Re3 d8N Na3 Nd7 Kg7 Kf2 e1N Nc6 Qb3 Nc3 Bb6 Kf1 Kg6 Bb8 Bd8 Bbc7 Bg7 f8Q Be5 Nb4 Bf4 Nd4 Bg5 Bb7 Qc6 Nb6 h1R Na8 Qb6 Rd1 a1Q Nbc6 Qab2 Ndb5 Qa1 Rd2 Qab2 Re2 Qa1 Nf6 Ng8 Nh5 Qab2 Ng3 Bh6 Nd5 Qf6+ Nf5+ Bg5 Qh6+ Kf7 Ndc3+ Ke8 Rb8 Rh4 Rgg2 Rd4 Rc8 Rd1 Rb8 Ra1 Qg7 Reh3 Re6 Bd2 Qf8+ Kd7 Ba6 Rg3 Rb7 Re3 Qh6 Ke8 Ra7 Rh7 Bc8 Rh8 Bb7 Kd7 Qg6 Nh6 Bb8 Bc7 Rg5 Rc8 Qh7 Ke8 Rg2 Bd8 Bbc7 Ng8 Qh6 Rb8 Qf8+
3bKR2/q4nb1/b2qn3/r3R3/1B2rbNN/1Nq1N1Q1/B2BN2p/3Q1Rbk b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ra5 Kd7 Ke2 Kd6 Ke3 Ke5 f4+ Kf5 Kd4 h5 Kc5 e5+ d6 a6 d4 h3 b4 h4 b6 e3 g4+ Ke4 b7 e2 d5 e1B b5 Nd7+ Kc6 Nc5 b8N Bf2 d7 Ne6 b6 Nh6 d6 Be7 f5 Rf8 Rc5 a5 g5 a4 f6 a3 f7 a2 g6 a1B Ba3 Kf4 Na6 Kg3 Be2 Kg2 b7 e4 g7 e3 g8N Bg7 b8Q Nf4 Bg4 e2 Nb4 e1Q Nd2 Ra5 Ne2 Re8 f8N Qg1 Ng6 Ba6 Rh5 Nf7 Nh6 Qc8 d8R Bef6 d7 Re4 Rh8 Bd8 Be6 Be3 Ba2 Ne6 Rb5 Bf2 Kd5 c5 Nb3 c4 Nc2 c3 Ng4 Bc5 Bb4 Ba7 Nca1 c2 Rf8 c1B Nc2 Qc3 Qe5 Qf2 Rf1 Qb6 Qd6 Qbc7 Qf4 Bg1 Rc5 Qa7 Kc6 h2 Qe5 h1Q Qf4 Bb6 d8B h3 Bg5 Qh2 Nh4+ Kh1 Qe3 Qf4 Qg3 Bc7 Kd7 h2 Ke8 Qd6 Re5 Bd8 Bf4 Be3 Bg5 Beb6 Bc1 Be3 Bd2 Bf4 Nce3
q1r1B2n/N2b1r1r/4B3/NRN1k2n/R1K1pbr1/r2R2QN/1Q4Nq/4q1B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 d4 Kd6 g4 c5 f4 h5 b4 a5 g5 e5 f5 a4 f6 c4 g6 h3 b6 e3 b5 h4 b7 a3 b6 a2 f7 h2 g7 c3 Kd3 c2 Qg4 e2 Nc3 e1R Nb5+ Ke7 d6+ Kf6 d5 h3 d7 Rh4 d6 Ne7 g8B Na6 b8R Re2 b7 Bh6 f8N Ng6 Ne6 Ra7 Qg3 Rf2 Nf4 Nh8 Ng2 Nc7 Be3 c1R Be6 e4+ Kd4 Qe8 d8N Rg4 d7 Nd5 Nc6 Nf4 d8N Rc5 Rd1 a1R Na5 Ra4+ Bfc4 Nh5 Rd3 Rff5 Bd7 Bf4 Bf2 Ra2 Ne6 Qg8 Kc3 Ke5 Kb3 Rc7 Nc5 Ra4 Be3 Rf8 Bde6 Rh7 Bd7 Ra2 Bce6 Ra1 Kc4 Ra8 Na7 Rff7 Ne1 Qd8 Be8 Bd7 Bf2 Qc8 Ng2 Ra2 Ra3 Ra1 Ra4 Ra3 Ne2 Qc6 Rd1 h1Q Ng1 h2 Nh3 Qe1 Rd3 h1Q Bg1 Qh2 Rc8 Qd6 b8Q Qc7 Qb5 Qb7 Rb8 Qc6 Rb6 Rc8 Qb3 Qb7 Rb5 Qa8 Qb2+
BQBn2B1/K2N1R1r/b3Qnkq/1B2RnB1/1bp2N2/4R3/bn1Q1q2/2n2r2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 c5 g4 a5 b4 f5 e4 Kf7 d4 h5 d5 h4 e5 a4 b6 a3 d6 c3 e6+ Kg6 d7 c2 b7 a2 e7 f3 Ke3 c4 Kd4 h3 Kc5 h2 b5 f2 b6 f4 Qd2 f3 Bg2 f1Q Nc3 f2 Nh3 Bh6 e8B+ Kg7 g6 Qh4 d8R Qd3 g5 f1B Nf4 Be2 Re1 h1N Ncd5 Bd1 Re3 Ng3 Bb5 Nf5 Nf6 Qf1 Rf8 Qff2 Nd7 Nc6 b8Q Rh7 b7 Nd8 Kb6 Nf6 Qbd6 Qh3 b8Q Ba6 Rb1 a1N Qe6 Nb3 Bb7 Qh5 Bc8 Nc5 Rb2 Nd3 Rf7+ Kg8 Rb3 Bf8 g7 Nb2 Rd3 Qhh4 Rd5 Bb4 Re5 Qh6 Qc7 Rb8+ Ka7 Rh8 Qb7 Kh7 Qa8 Rb6 Qb8 Rd6 Nd5 Kg6 g8B Kh5 g6 Rh7 g7 Kg6 Qe1 Rc6 Bd2 c1N Nf4+ Kg5 Qe2 Bb3 Qd3 Ba2 Qdd6 Rh8 Bh7 Rc5 g8B Rd5 Bg6 Rh7 Bh5 Rd3 Bf3 Rb3 Ba8 Rd3 Bc3 Rd1 Qdd5 Rh1 Be1 Rf1 Qd2 Qfh2 Bg3 Qf2 Bh4+ Kg4 Nh3 Kh5 Bg5 Kg6 Nf4+
3k1b1N/1b1n1RRR/2QbRB2/3rNr1p/1RQ3r1/rnB3q1/2K3BQ/1r2q3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 c5 Kd2 a5 b4 f5 g4 h3 e4 a4 b6 h2 d6 a3 e5 c4 b5 f3 b7 a2 e6 c3+ Kc2 h6 d7+ Ke7 g5 f2 d5 f4 g6 f3 d6+ Kf6 g7 Nc6 b8Q Na7 e7 Qb6 e8R Qa6 d8R Nc6 d7 Bb7 b6 Na5 Nd2 Nb3 Nh3 Qa3 Nc4 Ra4 Ne5 Rg4 Bg2 f1Q Ng5 f2 Qd5 Qe1 Ngf7 f1R Bd2 Rf5 Qc6+ Qd6 Rb1 a1R Qbc7 Ra3 Re7 Rh7 Nh8 h5 Rf1 h1R Rde8 Rh6 d8B Rhg6 Qc4 R6g5 Q7c6 Rg1 Nf3 Rd5 Ne5+ Rf5 Rf4 Qf2 Rb2 Rb1 Rf3 Qe1 Rf2 Nh6 g8R Nf7 Rf1 Rd1 Rg7 Rb1 Nd3 Ne5 Rf3 Nc1 Rb4 Nd7 Ne5 Nb3 Rh7 Bh6 Rg8 Bf8 Rgg7 Nd4+ Kd3 c2+ Bc3 c1B Rf4 Nb3+ Kc2 Bb2 Re4 Bc1 Ref7+ Ke6 Be7 Be3 Bf6 Bc5 Qa4 Qb8 Qc6+ Bcd6 Re2 Ba6 b7 Qc7 b8Q Bb7 Qa8 Rd4 Qa7 Rdf4 Qg1 Qb6 Ng4+ Qe3 Ne5 Rg4 Qh2 Qf4 Q6b5 Qfg3 Nc6+ Be5 Qa6 Kd6 Re3 Kc7 Re4 Bed6 Re6 Kc8 Ne5+ Bc7 Ree7 Kd8 Qac6 Bd6 Re6+
2R1r1bk/4QnBq/1prn2r1/1B4Nr/5N2/1BB1R1r1/1N1bRK1b/2q3BQ b - - 0 1 illegal: No possible last move, all moves rejected
1Q1Rn3/QbR3Bp/4Q3/B1bNQK2/B1br1b1k/4Q3/1nN2b1r/N3q1nq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 b4 a5 g4 c5 d4 a4 d6 a3 d7 a2 b6 h3 b7 h2 d5 f6 d6 c4 b5 c3 b6 c2 Bb2 c1B Nh3+ Kh4 g5 f3 g6 f2 g7 Nc6 b8Q Bg5 b7 Nce7 Qd4 Nh6 g8Q Nhf5 Qda7 Ng7 Qe6 Nc6 Nf4 Qe8 d8B Ne5 d7 Nc4 Na3 Bc5 Nd5 Bf4 Rd1 a1B Nc2 Rf8 Bd4 Nb2 Qbe5 Rg8 b8N Bb7 Na6 Rf8 Ba5 Rd8 Bh3 f1N Nab4 Qe7 e3 Ne8 Kf5 Nd2 e4 Nf3 Rc1 Rf7 Rhd1 h1Q Bf1 Ng1 Bb5 Rg7 Ba4 Rg2 Rd2 Rh2 Rd3 Rc8 d8Q Rc6 Bc3 Rd6 Qdb8 Rd7 Nc6 Bf2 N6d4 Qb4 Nb3 Rd6 Bd4 Qe1 Bdc3 Rd7 Ndb4 Rd4 Nd5 Nc4 Rdd1 Bb2 Nba1 Ba3 Qec7 Nb2 e5 Rd3 Qe3 Rd4 Qa7 Bc5 Qcb8 B2g3 Qec8 Bf2 e6 Bb6 e7 Bc5 Ke6 f5 Rd2 Rb4 Bg7 Rd4 Qc6 Bc7 Rdd1 f4 Kf5 f3 Qce6 Bf4 Q3e5 B2e3 Rd3 f2 Rd2 f1B Rdd1 Nc7 e8Q Bf2 Qe3 Bc4 Q6e5 Rd3 Q8e6 Ne8 Nc7 Ra3 Rd8 Rd3 Nd5 Rd4 Rb1 Nd1 Rb6 Nb2 Rc6 Ba8 Rcc8 Bb7 Rc7
1R4kb/NKQpqR2/rB6/2qNB1n1/Q4nQq/1N1N1Bb1/8/q1N1qr1b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 a5 Kc4 e5 f4 h5 b4 d3 g4 a4 g5 d2 f6 e4 g6+ Ke8 f5 h3 b6 h2 Kb5 e3 c4 a3 g7 Kf7 b7 e2 c5 e1B c6 a2 c7 h4 Kb6 h3 b5 Bb4 Qg4 d1Q Ne2 Ra7 Bg2 Ra3 Bf3 Qe8 Rf1 h1Q Nd2 h2 Nb3 Be7 Be3 Qf8 Rb1 a1Q Nec1 Nh6 g8N Nc6 b8Q Bd6 Ne7 Nd8 Nd5 Ba6 c8N Beb4 Na7 Qe1 Qc7 Qe7 Bf2 Kf8 f7 Bc3 Qa4 Kg7 f8N Bg3 f6+ Kg8 Ng6 Nhf7 Ngf4 Bb7 Nfd3 Ng5 Bg1 Nde6 f7+ Kh7 f8B Kg8 Bg7 Nf4 Be5 Ra2 Bf2 Qg1 Qcc4 h1Q Qd4 Ne2 Qg4 Nf4 Kc7 Bc6 b6 Qh4 b7 Rh6 Be3 Rf6 Bb6 Qgc5 Kc8 Bb2 b8Q Rf7 Qc7 Bd4 Qb5 Ra6 Qa4 Ba8 Nc3 Be4 Nd5 Rf6 Kb7 Rf5 Bd6 Bh8 Be5 Rf8 Bd1 Bh1 Rf2 Nh3 Rf7 Nf4 Bf3 Bf2 Na5 Qeb4 Rf6 Qe3 Be2 Qc4 Bbd4 Rf7 Ka8 Ng6 Rb8+ Rf8 Nab3 Bg3 Bb6 Qcc5 Kb7 Qg1 Rf7 Qd1 Rh7 Qe1 Nc8 Rf4 Rf7 Rf1 Bf3 Nf4 Na7+
1QN1R2N/1pRq4/1N1bnBNK/8/kbq1Q1rb/1N1n1b2/2B1bn2/1R3Qr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 g4 h5 a4 c5 f4 h3 d4 h4 f6 h2 d6 Kc6 a5 h3 f5 e4 Kf4 c4 Kg5 Kb5 a6 b3 d7 e3 a7 b2 d5 e2 d6 e1B Qd5+ Kb4 Bd3 c3 Nf3 c2 Qe4+ Kb3 Ne5 Qe7 d8N Bd7 Ndf7 Ba4 d7 Nh6 d8Q Qd7 Ng6 Na6 Qb8 Rg8 Nh8 Nc5 f7 Bb4 f6 Bd6 f8Q Nf5 f7 Ng7 Kh6 Nge6 Bg5 Bb5 Rc1 h1N Bf6 h2 g5 Nf2 Ne7 h1B g6 Bc4 g7 Bf3 Nc8 Bb5 Nc3 b1Q Ne2 Qa2 Rab1+ Ka3 Nd4 Ka4 Nb3 Ba6 Qe8 Bc4 f8N Bb5 Qf5 Ba6 Be4 Bae2 Nfg6 Ncd3 Qh3 Bd1 Qf1 Bde2 Nd4 Qc4 Nb3 Rf8 g8R Rf7 Ba1 Rf4 Bf6 Rg4 Qe7 Rg1 Re8 Rg4 Rd1 c1B+ Rd2 Bb2 Rc2 Bbe5 Rcc1 Bg3 Rc3 Ndf4 Bc2 N4d3 Qh7 Bh4 Qe7 Nd4 Qe4 Ne6 Qc7 Rb8 a8N Ka3 Nab6 Ra8 Nd5 Ka4 Qb8 Ra5 Ne3 Rag5 Nd5 Qcb5 Rc7 Qc4 Na7 Rg1 Nc8 R5g4 Ndb6+
1BRq2Rk/Q1r5/N1RR1QQn/1b3Bqr/3nK3/3r4/qbN1Rb1p/5bN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 Kf3 f5 g4 Kf7 d4 Kg7 b4 a5 e4 c5 e5 a4 d6 c4 d7 h3 b6 a3 b5 h4 g5 c3 g6 h2 e6 h3 b7 c2 e7 a2 e8Q Qf6 d8Q Ra4 b6 Qg5 d5 Rh5 d6 Kh8 d7 Bc5 Bd3 Bf2 Na3 Nc6 b8N Ra7 Na6 Rc7 Qde7 Bb7 d8R Bc8 b7 Bd7 Rb1 a1Q b8R Qa2 Be3 c1B Qa4 Bb2 g7+ Kh7 Qf6 Nh6 Qee6 Be8 g8R Bd7 Ke2 f3+ Kd2 Be8 Re1 Nd4 Rg7+ Kh8 Rd6 f4 Qg6 Qd8 Qef6 Bb5 Nc2 Rd5 Rc8 Rh5 Ne2 Rd5 Rhf1 h1R Ng1 h2 Re2 Rh5 Nh3 Rg1 Rc1 Rg3 Ng1 Rc4 Nc5 Ba3 Ra6 Bb2 Bf5 Be1+ Kd3 f2 Ke4 f1Q Na1 f3 Bf4 f2 Bb8 Rd3 Rd6 Rcc3 Qa7 Qg2+ Nf3 f1B Na6 Rc7 Rcc6 Qg1 Nc2 Qg5 Ng1 Bf2 Rg8#
2Rq3r/2n3Qn/2q5/K3BQR1/NRbk2R1/bprq1R2/3N1rB1/Qn2Nn2 b - - 0 1 illegal: No possible last move, all moves rejected
B2B4/n4Qq1/1n1Rr1b1/5Q1k/rN3p2/1nRBnBq1/1RB1NqbN/1Kb5 b - - 0 1 illegal: No possible last move
B2Q1k1n/1nr1nbN1/4n2b/R3q2Q/QNpr1B1N/4b3/KBQ1q2r/5Q1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 Kb3 h5 g4 h3 e4 c4+ Ka2 h2 b4 a4 d6 f3 b6 f4 b7 f2 e5 a3 e6 h4 d5 h3 b5 f3 e7 Qa5 b6 Nd7 b8N Rh7 b7 Nh6 g5 Nf7 g6 Nc5 g7 Nh8 g8Q Be6 Qb3 Bf7 Nd2 Ne6 Nc6 Rd8 Qg6 Bh6 Bg2 f1Q b8B f2 Ndf3 Qe2+ Bb2 f1N Qh5 Nd2 Ng5 Ne4 N1f3 N4c5 Nb4 Nb7 Nh4 Qc7 Qc2 Qc5 Rhd1 h1R Be4 Rh2 Rh1 Qce3 Bg2 Qe5 Bf3 Nec5 Ne6 Rd7 Bc7 Rg7 Bg2 Rg4 Bb8 Rc7 Bf3 Rd4 Bg2 Bg6 d7+ Kf7 Ng7 Ne6 d6 Kg8 Ne8 Bf7 d8Q Be3 Nf6+ Kg7 e8Q Bh6 Qc6 Be3 Ne8+ Kf8 d7 Bh6 Raf1 Be3 Q6a4 Bh6 Ka1 a2 Qf6 Be3 d8Q Bh6 Bc3 Be3 Kb2 a1B+ Ka2 Bb2 Ra1 Bbc1 Qf1 Bh6 Bf3 Bce3 Qb3 Rg2 Qa3 h2 Qa4 Rf2 Bb2 Rg2 Rg1 h1N Be4 Ng3 Rh1 Nf5 Ng7+ Be8 Bc6 Rh2 Bg2 Rc6 Bf3 Ne7 Bd6 Rc7 Be4+ Qf5 Bf4 Qe5 Bd5 Nbc5 Ba8 Nb7 Qd5 Bg6 Qd8+ Kf7 Qa7 Nf8 Kb1 Ne6 Ra4 Qd1+ Ka2 Qe2 Ne8 Kg8 Ng7+ Be8 Qa5 Kf8 Qb5 Qg4 Ra5 Qe2 Qdd7 Bg6 Qba4 Bf7 Qd8+
1Q2N3/R2n2BB/N1rbB2Q/2Nqr1q1/K1p5/n1R2Rr1/nRrq1R2/5bk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 Kd2 f5 Kc2 h5 Kb3 c5 g4 a5 d6 h3 b6 Kh4 g5 Kg3 g6 Kf2 d7 h2 g7 f3 b5 h4 b7 h3 d5 c4+ Ka4 f4 b6 Bd6 e5 Rh6 e6 Qg5 d8R Nf6 g8B Ne4 e7 Nd7 e8N Ra6 b8R Rh5 b7 Rc6 Be2 Kg2 Be3 f2 Nd2 f1R Bg4 f3 Qc1 f2 Ngf3 Rg1 Nb3 f1Q Ne5 Qd3 Bh7 Qd2 Bf4 Kf2 Be6 Rg3 Rf1+ Kg2 Nd3 h1R Nb4 h2 Rf3 Nc3+ Ka3 a4 Be5 Re1 Bg7 h1Q Nc5 Na2 Nba6 Rh2 Rc3 Re5 Rf3 Be7 d6 Qhd1 Rc3 Kg1 Rf3 Qd5 Qf4 Bf8 Qf6 Rd2 Qh6 Rc2 Rc1 Be7 Ra8 Bf8 b8Q Be7 Rb1 Bb7 Rbb3 Q1d2 Ra7 Q5d4 Bg4 Nb6 d7 Bc8 Rbe3 Nc1 Qa8 Bd6 Rf7 Qe4 Nf6 Qh1 Rdf8 Qhd5 d8R Be6 Qb7 Nd7 Ne8 Bf5 Rb8 Bd3 Be6 Be2 Rc3 Bf1 Kb4 a3 Raa8 a2 Ra7 a1N Qb6 Ra2 Rf2 Nc2+ Kb5 Rb2+ Ka4 Na2 R8f3 Na3 Qd8 Rc2 Rb2 Re3 Qa8 Re5 Qb8
2NK3b/NR1b1QrR/5N2/3B4/p7/Q1N2Rqb/qQN2Bqn/2k1nrbr b - - 0 1 illegal: No possible last move, all moves rejected
1Qr1N1n1/1q2nKb1/1Q3B1N/1Rn2bN1/pQ6/2Nbkrqq/2B2N1q/1B4R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kc4 g4 c5 e4+ Kb4 b6 f5 d6 a5 b7 a4 d5 h3 g5 f3 g6 f2 d7 h4 Ke6 h2 g7 f4 d6 c4 e5 Kc5 b4+ Kc6 b5+ Kc5 b6 c3 Qb3 Kd4 Kf7 h3 e6 c2 e7 f3 e8N Ra5 Bb2+ Ke4 Bf6 c1N Bd3+ Ke3 Qb4 f1Q Nc3 f2 Rb1 Qc7 Bc2 Nc6 b8Q Nce7 d8N Bf5 d7 Nb3 b7 Qg3 Ne6 Nc5 d8N Qa6 Qb6 f1B Rb5 B1d3 Ng5 Qa7 Q8d6 Ra6 b8Q Qb7 Nge2 Ra5 Rg1 h1Q Nce4 h2 N2c3 Qhf3 Nf2 h1Q Bb1 Qhh2 Qd4+ Kd2 Qb4 Ke3 Nc6 Qfg4 Ne5 Q4h3 Bc2 Ra8 Bb1 Rh4 Bc2 Rf4 Neg4+ Kd2 Bb1 Rf3 Nh6 Ke3 Be5 Nf6 g8B Bg7 Bh7 Nfg8 Bf6 Bg4 Be4 Bf5 Q8d6 Rc8 Qb8 Be2 Bec2 Bf1 Q4a5 B1d3 Qb4
1Q1rR3/2R2b2/1q2R1Bb/n5q1/pQn2NN1/2q3bk/N2B1br1/N1NKB2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 h4 a5 e4 f5 d4 c5 e5 g5 b6 c4 b7 f3 d6 Ke6 d5+ Kf7 d7 Kg6 e6 Kh5 d6 f4 b5 g3 e7 Kg4 e8R c3 b6 a4 h5 g2 h6 c2 h7 Nh6 Bd2 c1B Nc3 Nf7 Rh6 Nc6 b8B Rg8 h8N Na5 b7 Ne5 Qb3 f2+ Kd1 f3 Bd3 Nec4 Na2 Qb6 d8N Be6 d7 Bd6 Nc6 Bg3 d8N Bf7 Ne2 g1B Rhe6 Kh3 Ncd4 g4 Ng6 f1Q+ Be1 f2 Nc2 Bg5 Nc6 Bh6 Bf4 Rd8 b8Q Qg2 Rb1 f1R Bd2 Qf3 Na1 B1f2 Nce5 Rh1 Qb4 Rg7 Bc2 Qc3 Ngf4+ Kh4 Nec1 Bh2 Nd5 g3 Qa8 g2 Qb5 g1Q Nf4 Qd6 Qab8 Qg6 Qc5 Rg8 Rb7 Qb6 Bf5 Qf6 Qa3 Rg2 Bg6 Bhg3 Qb4 Qf5 Ng4 Qg5 Nfe2 Kh3 Ra7 Qge5 Rc7 Qg5 Nf4+
2K2R1r/8/N1QB1R1r/BBrnRNpb/q1Nr4/4b1R1/Rq3nk1/1q1Q1b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 e5+ Kd7 h5 a5 d6 Ke6 d7 Kd5 b6 Ke4 h6 a4 b7 f3 Kg3 c4 h7 f2 d5 a3 e6 a2 d6 c3 e7 c2 e8Q+ Qe7 d8B Nh6 d7 Bg7 b5 Ra4 b6 Nc6 b8R Qe5+ Bf4 c1R b7 Rd4 Rh3 Nb4 Bb5 f1R Nf3 Rc5 Na3 Nd5 Nh4 Rh1 Ba5 Bf6 d8R Be6 Qf1 Bf7 Qc6 Bh5 Nc4 Qe8 Bd6 f4+ Kf2 f3 Kg3 f2 Qd1 f1B Nf5 Qd7 Rf8 Bd8 Rc8 Bb6 b8N Qg7 Na6 Rh2 Rb1 a1Q Rf6 Qa4 Ra1 Ba7 Rcf8 Rh1 Ra2 Bb6 Kf2 g3+ Ke1 g2 Kf2 Ng4+ Kg3 Rg8 h8R Nf2 Rh2 g1Q+ Rg2 Qb7 Rh7 Rh8 Rg7 Bf7 Rgg6 R1h6 Rg7 Nh3 Kg4 Qh2 Rg3 Qb2 Rgg6 Qba3 Ng7 Rd3 Rf5 Be8 Qc8 Rc7 Bd7 Be3 Rgf6 Qb1 Bb5 Rc5 Qc6 Qab2 Re5+ Kd4 Kf5 Bh5 Ke6 Nf2 Rf5 Ke4 Kd7 Rd2 Kc8 Rd4 Rf7 Rf6 Re5+ Kf4 Nf5 Rfh6 Rf3+ Kg4 Ng7 Kh4 R7f6 Kg4 Rg3+ Kh4 Rg4+ Kh3 Rg3+ Kh2 Nf5 Kh1 Rh3+ Kg2 Rg3+
r7/BBBr2qr/r4RBQ/N1n1p2N/2Bq1bR1/1q1bQ3/2Rn4/2kNKb2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 Kf7 g4 Kf6 f4 a5 c4 h5 c5 d5 b6 e5 c6 h3 b7 h2 b5 d3 b6 a4 c7 d4 Qf3 a3 Qe3 h4 Nh3 a2 Rg1 h1Q Nc3 Rh7 Nd1 Na6 b8B Qg2 b7 Bh6 Bb2 Bd7 c8B Nc5 Rc1 a1R Rc2 Bb5 Bc7 R1a6 b8N Qdd5 Ba1 Qb3 Nc6 Bc4 Na5 Bb5 Ng5 h3 Bb7 h2 Ne6 h1B Ng7 Bc4 Be2 Bg5 Bef3 Bb5 Bfe4 Qg3+ Kf1 d2+ Bd3 Be4 Nh5+ Ke7 f6+ Ke6 f7 Nf6 f8Q Bf5 Ke2 Nfe4 Qh6+ Bg6 Nc6 Kd5 f5 Bf4 f6 Bc4 f7 Bf5 Nb2 d1R f8R Nd2 g5 Bh3 g6 Qg4+ Kf2 Bf1 Bf5 d3 g7 Bb5 Rf7 Qg5 g8B Qg7 Rg4 Bc4 Qe1 Bb5 Na5+ Kd4 Bg6 Bc4 Rc1 Bb5 Rf6 Bc4 Rb1 Kc3 Qe3 Kc2 B8f7 Bd5 Bg8 Be4 Bc4 Bf5 Na4 Be4 Rb2+ Kc1 Nc3 Bf5 Qe1 Nf3 Qe3+ d2 Ra2 Bb1 Ne4 Bc2 Bd4 Bcd3 Nc3 Re1 Qe4 d1Q Qe3+ Nd2 Rb2 Qb4 Ra2 Qdb3 Nd1 Q4c3 Qg3 Re4 Qe3 Qcb2 Ke1 Qa1 Bc3 Rd4 Rb2 Rd7 Bd4 Ne4 Ba7 Nc5 Ra2 Qd4 Rc2+
1n2Q2q/1K1BqB2/2NN2n1/1n1p1r2/B1brQbr1/R2B1r2/Nk1B2qR/Q7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 g4 a5 b4 f5 e4 h5 b6 d5+ Kb5 a4 c4 h4 g6 a3 b7 a2 c5 d3 c6 Kd4 g7 f3 c7 h3 Kb6 f2 g5 h2 b5 d2 g6 f4 e5 f3 e6 Qf6 Nc3 Bd6 e7 Rh6 e8B Na6 b8N Ne7 g8B Rh4 g7 Rg4 Bgf7 Ng6 g8Q Qe7 Nh3 Bf4 Bd3 f1R Qh7 f2 Ng5 Ra7 Qe1 d1N Bd2 Bf5 c8B Rc7 Qe6 Rc4 Qe1 Be4 Bf5 Bf3 B5e6 Be2 Nge4 Rb4 B6d7 Rc4 Nb1 Nc3 Kb7 Rb4 b6 Nb5 Nd6 Ra4 Bc2 Bc4 Nc3 Rb4 Ba4 Kd3 Nc6 Nb8 Bd1 Ra4 Be2+ Kc2 Bd3+ Kb2 Qe4 Rb4 Qg7 Ra4 Re1 a1R Re3 R1a3 Na2+ Rc3 Rg1 h1Q Rg2 Qh8 Rh2 Re1 Qgd4 f1Q Rf3 Re2 Qg1 Qg2 Qa1+ Kb3 Rg3 Rf2 Bb1 Qef6 Qe3 Nd4 Bc8 Bh6 Ne5 Nd7 Kc7 Ra3 b7 Rd3 Qe4 Qe7 Rgh3 Rf5 b8Q+ Bb5 Qa8 Bf4 Qc6 Bc4 Kb7 Nb8+ Qd7 Qg5 Qe6 Qgf6 Bc6 Qfh4 Qe8 Qe7+ B8d7 Ne6 Nc3 Rd4 Re3 Nc7 Ba4+ Kb4 Rd3 Nb5 Rf3 Rb3 Na2+ Ka3 Nc6 Rc3 Rf1 Rcd3 Rc1 Rdg3 Bd3 Rf3 Rc3+ Bb3 Qh1 Kb2 Qf1 Bc4 Ra3 Re5 Qh1 Rf5 Qa1+
Nb1q1Qb1/Q6r/1BBR1r2/B1p4R/1NR2bn1/4q3/1bK1k1NN/1nN2nq1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 b4 c5 e4 f5 h4 a5 h5 g5 e5+ Kc7 b6+ Kb7 b5 a4 e6 a3 d6 a2 d5 f3 h6 f2 h7 g3 e7 g4 e8N f4 d7 f3 d6 g2 Kc2 g3 Nc3 Ra5 Rh5 Bh6 Nce2 Na6 Nc7 Nf6 Na8 Bf4 Bd2 Nc7 Rc1 Ra6 Ba5 a1B Qd4 Ng4 Qg7 Nd5 Qf8 Rg8 h8R Bb2 R8h6 Nc3 Re6 Nb1 Reh6 Qe8 d8B Rg7 d7 Rh7 Rd6 Qe5 Bc7 Qe3 Bd8 Kb8 b7 Ka7 b8N Rb6 Rdh6 Rf6 b6+ Kb7 Nc6 Ka6 b7 Kb5 b8Q+ Kc4 Rg6 Bb7 Nb4 Bd5 Qa7 Bg8 Bdb6 Bb8 Nh3 g1B d8N g2 Ndc6 Bgh2 Nhf4 g1Q Bg2 f1Q Ncd4 f2 Bc6 Qe1 Nf3 f1N Ng2 Bhf4 Nh2 Qh4 Rd1 Qg5 Nc1 Qd5 Rd3 Qd8 Rc3+ Kd4 Ne1 Qee7 Rc4+ Ke3 Ng2+ Kf2 Nca2 Ke2 Rgh6 Qee3 Rg6 Rff7 Rd6 Rf6 Nc1+
2RnqQB1/K1Q4B/b6n/1pNB1B2/1rN2b2/R1r1qq1r/NrnBk3/6Q1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 d4 h5 e4 c5 a4 f5 e5+ Kc7 e6 Kb6 a5+ Kc7 a6 Kd6 a7 b5 e7 b3 e8Q f3 Ke3 c4 g6 b2 g5 c3 g7 h4 g6 c2 Bd3 h3 Na3 b1R Bd2 c1Q Ne2 f2 Qg1 f1R Nc3 h2 Na2 Nh6 g8B Rb2 g7 Nc6 Bh7 Rf4 g8B Ba6 Be4 Be7 Qf8 Rc8 a8B Qe8 Bd3 Nd8 Nc4+ Kc7 Be4 Bg5 d6+ Kd7 d5 Rc7 Na3 Rc3+ Kd4 Rh4 Nc4 f4 Kc5 f3 Kb6 f2 Bb7 f1N Ka7 Bf4 Beg6 Qce1 Bf5+ Q1e6 Ba8 Ne3 Bb7 Nc2 Ba8 Kc8 d7+ Kc7 Rc1 Bb7 d6+ Kc6 Ra1 Kd5 Rc1 Ne3 Rc2 Kd4 Rc1 Ba6 Bd5 Qe4 Rc2 Kd3 Rc1 Ndf7 d8Q Ke2 d7 Nc2 Qc7 Qf3 d8N Qfe3+ Qfc5 Rh3 Nb7 Nd8 Ra1 Q3e7 Q5d6 Qe3+ Nc5 Rb4 Qf8 Rb2 Qg3 Rb4 Rhg1 h1Q Rgc1 Qf1 Qg1 Qff3 Rab1 Rh2 Rb3 Rh3 Bhg6 Rh7 Ra3 Re7 B6h7 Rb2 Nd6 Re4 Nc4 Rd4 Nd6 Ra4 Nc4 Rab4 Qb6 Q8e6 Ne4 Ne1 Ne5 Rd3 Rc8 Nc2 Nc4 Qe8 Nc5 Rc3 Qc7
1K2RqnB/1BRQ4/B1R1N1Rp/2q2b2/NQ1b1nr1/5rQ1/n3n2r/3kqR2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 a5 b4 f5 g4 c5 d6 a4 d7 h6 d5 h3 b6 a3 b5 a2 d6 h2 g5 f3 g6 f2 b7 f4 b6 f3 g7 Rh7 e4+ Kb4 Nh3 c4 Bb2 c3 Ng5 c2 Rg1 Kb3 Nc3 Ra4 Ba6 Ne7 g8B+ Nd5 Rb1 Ra3 Na4 Qc7 d8R f1N Rd7 h1R Re7 Qc6 d7 a1Q d8R f2 Rd6 Nd7+ Ke6 Rh4 b8Q Rg7 b7 Rh2 e5 Ng3 Qc7 f1Q b8Q+ Qb6 Qd4 Qf4 Rbf1 c1N Qba7 Qc5 Qb4+ Kc2 Rb6 Qcc4 Kd6 N7f6 Bf7 Qf2 e6 Na2 Bh5 Qb1 Bf3 Ng8 Ba1 Rg6 Bh8 Bg7 Rf7 Bf6 e7 Qbe1 e8R Ne2 Qcb8 Bg4 Ne6 Qcc5+ Kd7 Qf8 Kc8 Kd1 Qbc7 Qe3 Kb8 Bf5 Rg4 Bb2 Qg3 Qec5 Qac7 Nf4 Bfb7 Rf3 Rc6 Bf6 Qd8+ Bd4 Rfc7 Rg7 Qd7 Rg6 Rg5 Rg7 Rh5 Rg4 Rg5 Rhh4 Rg7 Rh2 Rg6
1RR1r1nK/1r2nq2/1nN1NQqp/bBqR3R/1qQ5/k1r5/1Q4N1/2BbR3 b - - 0 1 illegal: No possible last move, all moves rejected
1b2BqR1/R1Brnb1k/1n5p/2nr3N/N1qB4/n6K/RQNQ4/1N1qr2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 e4 c5 g4 f5 Kg2 Kf7 d4 Kg7 b4 f3+ Kh3 h6 d6 f4 d7 c4 g5 a4 g6 a3 b6 c3 b7 a2 e5 c2 e6 f2 d5 f3 d6 Ra4 b5 Rh7 b6 Qf6 d8N Kh8 d7 Bd6 e7 Rf7 e8N Bh2 g7+ Kh7 Nc6 Rd4 Be3 c1N Qd2 Nd3 Nb4 Nc5 Ne2 Ne7 g8R Rd5 Bd4 Qd6 Bg2 f1R Nc2 f2 Ng3 Re1 Ng7 f1Q N7h5 Qc4 Rg1 Rg7 Nh1 Qf4 Bf3 Qf8 Rg2 Bf4 Bg4 Rf7 d8N Be6 Rf2 Nbd7 b8B Bc7 b7 Nb6 Re2 Rg7 Rf2 Bf7 Ne6 Bf4 Bc7 Bg3 b8Q Bh2 Kg2 h3+ Kf3 Bg3 Qb7 h2 Kg2 Bf4 Kh3 Be5 Nd8 Bg3 Bd7 Bf4 Be8 Bd6 N1g3 h1Q+ Rh2 Qf3 Ne6 Qd1 Nh1 Be5 Bd8 Bb8 Bc7 Rd7 Re2 Rg5 Rf2 Nd3 Nc5 Rgd5 Na4 Nc5 Nbc3 Na8 Qb2 Nb6 Rb1 a1N Rfg2 Nab3 Ra1 Na5 Re2 Qa2 Nb1 Nac4 Rf2 Na3 Rh2 Qc4 Ra2 Na6 Re2 Nc5 Re6 Na8 Ra6 Nb6 Ra7
qB2qRrR/3n2pb/QQ4r1/1n4N1/Qq3q1b/b3R1r1/B2NK3/4NRRk b - - 0 1 illegal: No possible last move, all moves rejected
1QK1Q2N/3nrpb1/Brbq4/1b1R4/1B3QQn/Q1N2n1q/3BR2R/b5kr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 b4+ Kc4 d4 a5 g4 c5 d6 h3 b6 f3 d5 f2 b7 h2 g5 h4 b5 a4 e4+ Kb4 b6 c4 g6 Kc5 g7 h3 d7 c3 d6 c2 Ba6 f1B Qd3 a3 Ra2 Bg2 Nf3 Ne7 g8Q Ra7 Bd2 c1N Nc3 Ne2 Nh4 Nf5 Ng6 Rh6 Nh8 Nh4 Qg4 Nd4 Qdf3 Qc7 d8B Bd7 Be7 Bb5 Qff4 Qc6 d7+ Kc4 d8R Kd3 Rb2 a2 Rd5 a1B Bb4 Rd6 Re1 h1Q Re2 h2 Rc2 Qd1 Ra2 h1R Rb2 Qc8 Rc2 Rd8 Kf6 Rd7 e5 Rd6+ e6 Bg7+ Ke7 Nd7 b8Q Be4 b7 Rb6 Qbd6 Bf3 Rf5 Bc6 b8Q Rab7 Qc5 Ndf3 Kd6 Ra7 e7 Rc7 Ng6 Qh8 e8Q Qh6 Ra2 Qf1 Ke7 Qh3 Nh8 Qd6+ Kd8 Ra7 Kc8 Rab7 Qcg1 Ra7 Qc1 Rab7 Qa3 Ra7 Re6 Rab7 Ne4+ Ke2 Rd5 Kf1 Nc3 Ra7 Qh5 Kg1 Re2 Nf6+ Qhf5 Re7 Rh2 Nd7 Q5g4+ Qg3 Bc1 Qg2 Re2 Qg3 Bd2 Qg2 Qh5 Qh3 Qhg4+
2K2b2/B2pqQ2/n1n1r3/r1BRN2Q/2k2r2/q1q1R2B/bbrBQ3/1B1N2R1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 h5 Kc4 a5 Kc5 a4 c4 h3 g4 a3 b4 d3 f4 a2 b6 h2 b7 h4 f6 Ke6 f7 d2 b5 h3 g5 Ra6 g6 Ra8 b6 Nh6 f5+ Ke5 f6 Rg8 g7 Ke4 Qe2+ Kf4 Nc3 Qe8 Nf3 Ng4 Nd1 Ne5 Ne1 Nec6 Rg1 h1R Nd3+ Kf5 Kb5 e5 c5 Na6 b8Q Ke6 b7 Kd5 Kb6 e4 Qe5+ Kc4 b8B h2 Q5h5 e3 Bh3 Qe7 Ba7 Bb7 Rg5 Re8 Rd5 Rf1 Rb1 Rh8 g8B h1R Bh7 a1B B7f5 Bb2 Bg6 Bh6 f8B Rh2 f7 Rf4 Be4 Rg8 Bef5 Rg5 Bg6 Nd4 c6 Re5 c7 Nc6 c8R Bg7 Nc3 d1Q Bd2 Qa4 Rg1 Qaa3 Nd1 Re6 Rc7 Ra8 Rc8 Rhf2 Re8 Bh6 Bg7 Rh2 Bd4 Bf8 Bc5 Rg2 Qeg4 e2 Bf5 e1Q Qe2 Bfg7 f8Q Bh6 Qff7 Bf8 Bde3 Qec3 Bd2 Nab4 Kc7 Rh2 Bb8 Ra5 Bba7 Ba6 Bh7 Bb5 B7f5 Na6+ Kc8 Ba4 Bh7 Bb3 B7f5 Ba2 Bh7 Qh4 Re7 Rg6 Re3 Re6 B7f5 Qe7 N3f2+ Kb3 Bb1 Rg2 Nd3 Kc4 Qfh7 Rgf2 Q7f7 Rf1 N1f2 Rc1 Nd1 Rc2 Ne5+
2Q2n2/RbNp2b1/r6N/1rqN1Nn1/3qB1BB/R1QrN2n/K4Qq1/6kq b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 Kf6 f4 e5 g4 h5 c4 a5 Kc2 e4 Kb2 e3 b6 h3 c5 a4 b5 d3 g5+ Kf7 f6 Ke6 b7 Kd5 g6 Kd4 f5 h4 c6 d2 c7 h2 g7 h3 b6 a3+ Ka2 e2 f7 Ke3 f6 Kf2 Qc2 e1R Nc3 Rd1 Be2 Bc5 f8Q Kg2 f7 Bd4 Nf3 Rh5 Ne5 Nh6 g8N Qh4 Ng4 Qe7 Nd5 Nc6 b8Q Ra6 b7 Nd8 Qc3 Qc5 Nge3+ Kf2 Bg4 Ne6 Rg1 h1Q Rg3 h2 Qa7 Qg2 b8N h1Q Nc6 Bg7 Nce7 Kg1 N7f5 Bb7 Qc8 Rg5 f8N Nf7 Ngh6 Rh5 Rh3 Nfg5 Qb6 Nh7 Qbb2 Neg5 Ne6 Nf8 Qb6 Rf1 Qa7 d1N+ Bd2 Nf2 Be1 Ng6 Rf3 Nf8 Qb6 Nfh3+ Qbb2 Kh2 Bh4 Rd1 Qf2 Rd3 Qd8 Rd6 c8B Rb6 Nec7 Rb5 Ng8 Rh6 Rg3 Re6 Ngh6 Ra6 Nb4 Bf3 Bb7 Bc6 Qc8 Bf3 Kb3 a2 Ba8 Bb7 Kb2 Rba5 Nbd5 Rb5+ Kc2 Nf7 Qc4 Rf6 Nf4 Nfg5 Nd1 Ba6 Be4 Rd4 Nfd5 Bb7 Rb3 Rc6 Kb2 Rd3+ Qd4 Rf6 N1e3 Rc6 Rc1 Rg6 Rc4 Rc6 Ra4 Rg6 Ra7 Rf6 Qb4 Ra6+ Rc3 a1Q+ Kb3 Rd2 Rd3 Qad4 Rc3 Rd3 Kb2 Rd6 Ka2 Rf6 Rca3 Ra6 Qc2 Kg1 Qc3 Rg6 Q2b2 Ra6 Qf2+
n3k2N/4rQqb/6rr/2r5/1Q1RNQ2/2BRb1Bp/5rnB/BKN2Bqr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc2 f5 b4 h5 e4 a4 g4 a3 g5 a2 g6 c4 d6 c3 e5 f3 d7+ Ke7 b6 h3 d5 h2 b7 h4 g7 f4 d6+ Kf7 b5 f2 b6 f3 Qd2 h3 Ne2 Ra5 Bb2 Na6 b8B Nh6 b7 Nf5 Qf4 Rc5 Nc1 Qg5 d8B Nc7 g8Q+ Ke8 e6 Rh6 e7 Qg1 Qb3 Na8 Ba5 Nh4 Nd2 Bf5+ Ne4 Ng2 Qb4 Bh7 Bbc7 Rg5 b8B Rgg6 Rb1 Bg7 Ba1 Bd4 Rb3 Bb6 Qg3 Be3 d7+ Kf7 d8N+ Ke8 Ba6 f1R Nf7 f2 Qf4 Rd1 Nh8 f1R Be5 Rf3 Bf1 Rd7 Bac7 Rfg3 Bf6 Rf3 Bce5 Rb7 Bh4 Rd7 Bg3 Rf2+ Ne2 Rf6 Qh4 Nb6 Bb2 a1Q Bgf4 Qa3 Ba1 Na8 Kb1 Qa7 Ra3 Rfg6 Bg7 Ne1 Bg2 Qf1 Rg1 h1R Bh2 Rb7 Bbg3 Kd7 Qf4 c2+ Ka2 Kc6 e8Q+ Rd7 Qee7 c1R Bge5 Rc4 Kb1 Rc5 Nc1 Rc7 Qef6+ Kd7 Rc3 Rb7 Rc4 Ke8 Bec3 Rd7 Rd4 Qc7 Qg7 Qe5 Qgf6 Re7 Qe6 Qg7 Qeb3 Nf3 Qd5 Nh4 Qdf5 Qe2 Rgd1 Qe1 R1d3 Qg1 Bf1 Ng2 Qf7+
2B5/Bk1Nq1b1/r2Q1rQ1/b1R2N2/Qrbp2b1/2Rn3b/2K5/1NQRQ1nr b - - 0 1 illegal: No possible last move, all moves rejected
1krr4/N2QN2Q/b2n2bB/1R4rN/n4b1b/nqn2QpN/2RB4/3NKB2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 a5 b4 c5 e4 Kc7 h5 g5 e5 f5 e6 f3 h6 c4 e7 c3 e8Q c2 h7 a4 Qe6 f4 Na3 g3 Qe7+ Nd7 d6+ Kb8 b6 g4 b7 g2 d5 g3 b5 Nh6 Rh5 Qb6 Nh3 g1N Nb1 a3 Ra2 Nf7 Nc3 Ne2 Bd2 c1B Rc2 Nc5 d7 a2 d8B a1N d6 Na4 d7 Nd6 Qf7 Bh6 Bg5 Rd8 h8N Bf8 Ng6 Be7 Bh6 Bh4 Qh7 Ra5 Ne4 Nec3 Nef2 Qe3+ Qe2 Qe6 Nd1 Qb3 Ne7 Ra8 Bg2 f2+ Kf1 Kc7 b8N Ba6 Nbc6 Rac8 Na7 Kb8 b6 Bd3 b7 Bg6 Be1 Bd2 Qf3 Bc1 Rb5 Be3 Ra2 Nc2 Bd2 Na3 Rc2 Ncb1 Ke2 f1B+ Ke1 Nbc3 Bg7 Bc4 Bh6 Bcd3 Bf1 Be2 Qh5 f3 Qd5 Bf4 Qc6 Rg8 d8Q Re8 Qdd7 Red8 Nd5 Bc4 Nf6 Be2 Nh5 Bed3 Rc5 Ba6 Rb5 Bfg5 Bd3 f2+ Kf1 Be3 Kg2 f1R Qe4 Rff8 Qf3 Beg5 Kf1 Bf4 Ke1 Rf5 Bc4 Rg5 Bf1 Nf7 Qe6 Kc7 b8N Rg4 Nbc6 Rg5 Ne7 Nd6 Rd5 Kb7 Qd7+ Kb8 Rb5+
b4Bbk/R1n1R1B1/qb1rB3/nn6/r2N3Q/Q1bBnp1N/6N1/2KBr2R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 e4 f5 g4 Kf7 b4 Kg7 e5 h5 b6 c4 g5 a4 b5 a3 b7 a2 e6 h3 d6 h4 b6 h2 d5 h3 e7 f3 e8B f2 d7 f4 d6 Ne7 g6 Na6 b8N Nf5 b7 Rh6 Nc6 Qb6 d8B Nd4 b8R Nc7 d7 Ra4 Na3 Qa6 Bd3 Bc5 Nc2 Kh8 Qf3 Bb6 Rb7 Ndb5 Ne1 f1N+ Kc2 c3 g7+ Kg8 Ra7 Rd6 Nd4 Bb7 Bd2 Ne3+ Kc1 c2 Ng2 Bd5 Bh5 Bc4 Rb1 a1B Be7 Bc3 Bf8 Bb3 d8Q Ba2 Bf1 Kh7 g8B+ Kh8 Bd3 Bf7 Nge2 Be6 Re1 h1R Qh4 h2 Ng1 Bc4 Nh3 Be6 Bgh7 Bg8 Bhf5 Rf1 Be6 h1B Qfg3 Rg1 Qhg5 Rf1 Bd1 Rg1 Re2 Re1 Qc5 Qb7 Qa3 Qa6 Nh4 Bd5 Ng2 f3 Ra1 Ba8 Qg4 Nf5 Bdh6 Ne3 Qh4 Bb4 Kb2 c1N Rb1 Nb3 Ra1 Na5 Kc1 Rf1 Re1 Rf2 Rh1 Rf1 Ra2 Re1 Rc2 Ne8 Rcc7 Bc3 Re7 Nec7 Bhg7#
2b4R/B2rR2K/2Rn2rQ/kr4Qr/q4pb1/NQb1bn1R/B2N4/Rn5B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 Kc7 e4 Kb6 g4 a5 d4 a4 d6 c4 d5 h3 g5 a3 d7 a2 g6 h4 g7 f3 d6 h2 Qb3 c3 Bg2 f2 Na3 f1N Nf3 f4 Kf5 h3 Kg6 c2 e5 Nf6 g8B Ra7 e6 Nd2 e7 Bg7 e8R Rh5 Re7 Nb1 Nd2 Ne4 Bd5 Qc7 d8R Bc3 d7 Nd6 Rh8 Nc6 d8Q Nd4 Qf8 Qb8 Qh6 Qa8 Kh7 Rd7 Bb2 c1B Bg8 Ka7 b6+ Ka6 b7 Rb5 b8R Nf3 Rb7 Qa7 Rc7 Kb6 Qd5 Qa4 Qdg5 Ka6 Rg1 h1R Rc6+ Rb6 b5+ Ka5 Re1 h2 Re3 Rg1 Rd3 h1B Bd5 Rb8 b6 Rbb7 Bf1 Rb8 b7 Bg2 Re3 Bh3 Bg2 Bg4 Bh1 Rg2 Rd3 Rh2 Re3 Rh5 Rd3 Nh2 Rh3 Nf3 Nf1 Be3 Nd2 Ra8 b8Q Ra6 Qb3 Rb6 Rg3 Rb5 Rh3 Nc4 Qc2 Kb4 Qg7 Ka5 Ne4 Bf6 Bd4 Nd6 Ba7 Bc3 Qf6 Be6 Qe5 Nbd2 Rc1 a1R Ba2 Rb1 Qd5 Rb2 Ra1 Nb1 Qcd1 Rg2 Nd2 Rg6 Q1b3 Bg4 Qg5
R4n2/4B1Nb/1rbBbB2/rBQ2nb1/rBN1Qpk1/R2q4/Q3nKR1/r7 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 b4 f5 g4 a5 e5 c5 e6+ Kd6 g5 f3 g6 h3 e7 c4 e8Q f4 g7 c3 b6 c2 b5 h4 b7 h2 b6 a4 Nh3 a3 Qe4 a2 Bd2 c1R Kf2 Ra4 Qdc2 Ne7 g8Q Rh6 Na3 Nd7 b8R Nf5 b7 Be7 Bb5 Nf8 Ng5 h3 Ne6 Bg5 Ng7 Be6 Ra8 Qd7 Qc8 Rc5 b8B+ Ke7 d6+ Kf6 d5 Qd8 Rae1 a1R d7 Kg6 d6 Rd5 Bc4 Rda5 Qc5 Kf6 Re3 Kg6 Ne8+ Kh5 Bb5 Kg4 Nc4 Rg6 Ra3 Rf6 Rf1 h1B Ng7 h2 Bb4 Bg2 Rb1 h1B Rb2 Bf1 Bc7 Bd3 Re2 Qe8 d8B Qg6 d7 Bb1 Kf1 f2 Be7 Qh7 d8B Rg6 Qee5 Bc6 Qe4 Bc2+ Kg2 f1N Bcd6 N1g3 Kf2 Bb1 Rea2 Ne2 Bf6 Qh3 B8e7 Qd3 Rc2 Bed7 Qgd5 Be6 Rb2 Qc2 Qd2 Qd3 Qc2 Rh6 Qb3 Rg6 Qa2 Bcd7 Nb6 Qb3 Bc7 Nfd4 Qed5 Bef5 Nc4 Ng3 Bfe5 Rb6 Kg2 Bc6 B5f6 Be6 Bcd6 Bh7 Qe4 Qd3 Rf2 Ngf5 Rc2 Nb3 Re2 Nc1 Kf1 Qd4 Rh2 Qd3+ Kf2 Ne2 Rg2+
rBr3N1/3Q1N2/1n1Q1b2/3rQ1b1/B3rNB1/Qbq2k1n/1qQbR2p/3K2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 g4 Kd6 b4 h5 e4 c5 b6 f5 b5 a5 b7 c4 b6 a4 g5 c3 g6 a3 g7 f3 Qc2 h3 Qb2 f4 Bc4 f2+ Kd1 f1R+ Kc2 f3 Nd2 f2 Ndf3 h4 Rh2 a2 Be2 Ne7 g8N Bh6 Ng5 Nd7 b8Q+ Qc7 b7 Ng6 Qa7 Rd1 b8Q f1R Bg4 Rfe1 Ne2 Nb6 Nf4 Be6 Re2 h2 Qa4 h1Q Qaa3+ Kd7 e5 h3 d6 Kc6 d7 h2 d8Q Qg2 Nf7 Bg5 Rb1 a1B Qdf8 Ba2 e6 Bd5 e7 Ba2 Nd3 Kd5 e8B Nf4 Ba4 Nh3 Bf4 Qe5 Qc1 Qe3 Qcb2 Ke4 d5 Qf2 d6 Bd5 Be6 Kf3 d7 Qd4 d8Q Qc5 Rd2 Re4 Re2 Rd2+ Kc1 c2 Q8e5 Qc3 Qd7 Bb3 Qfd6 Qg2 Bg3 Rc8 Nf4 Rd5 Bf5 Ra8 Ne7 Rhc8 Ng8 Qc7 Qba2 Bd4 Kd2 c1B+ Ke1 Ba1 Qc2 Bd2+ Kd1 Qc3 Bf2 Nc4 Ba7 Nb6 Bb8 Qf2 Rc1 Qfd4 Be6 Qb2 Bf5 Qdc3 Bg4+ Kg3 Bc6 Qe3 Qee8 Qb1 Ba4 Baf6 Qee5 Qc3 Re3+ Kh4 Ke2 Qbb2 Rh1 Qc4+ Kd1 Qcc3 Re2 Kg3 Be6 Kf3 Rg1 Raa5 Bf5 Ra8 Bg4#
qB1N2q1/k1K5/qr2NR2/2n2B1r/n3R2Q/2r1rNRq/3bQ1pN/2Nb3Q b - - 0 1 illegal: No possible last move, all moves rejected
R1NQ3Q/b3qn1n/b3bB1N/KQQB1Q2/b1R5/3r1N1k/1nnBrpq1/8 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 b4 a5 e4 c5 g4 f3 g5 h3 b6 c4 d6 Ke6 e5 h2 b5 f2 b7 f4 d5+ Kf5 e6 h4 e7 f3 e8Q Kg4 b6 a4 Kb4 a3 g6 h3 g7 a2 Nc3 Nc6+ Kb5 Be6 b8Q Ne5 b7 Nf6 g8N Nh7 d7 Nf7 d6 Qe7 d8Q Ra3 Nd5 c3 d7 c2 Bc4 f1B Qd2 f2 Qe3 Rd3 Bd2 c1N Nf3 Be2 Rf1 h1Q Qbc8 h2 b8Q Kh3 Nb6 Qg2 Bd5 h1B Qec5 Bd1 Ka5 Ba4 Qbb7 Bg7 Qba8 Bd4 Nh6 Rg8 Qab8 Rg4 Qg8 Re4 Qh8 Re2 Qbe5 Be3 Qcb8 Bd4 Nc8 Be3 Qbb5 Bd4 Rb1 a1N Rb4 Nc2 Rc4 Be3 Qa3 Ba7 Qac5 Rb3 Qef6 Nd3 Ra1 Nb2 Qf4 Rd3 Qf5+ Qg4 Qdc7 Bg2 d8B Bf1 Q7d6 Qd7 Bf6 Qe7 Qg6 Qg5 Qdd8 Qg2 Qf5+ Kg3 Qe4 Ra3 Be5+ Kh3 Rc3 Bb3+ Qba4 Bb6+ Kb5 Re3+ Qac4 Bd3 Bf6 Re2 Qf4 Ra7 Ra3 Rb7 Ra8 Ba4+ Ka6 Ba7 Ka5 Rb3 Q4b4 Ba6 Rc4 Rbe3 Qbb5 Rd3 Qf5+
nn4Rb/8/N2R2q1/4pnR1/1Nr1QR2/r2R1B2/nb1QQkqB/bK2Nb2 b - - 0 1 illegal: No possible last move, all moves rejected
1N1R1k2/2B1N3/2rN1b2/1Br2Q2/K1nnb1Nb/p1rq1Rpq/Q5n1/1RQ1N3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 Kc3 g5 Kb3 c5 h4 g3 e4 f3 h5 c4+ Ka4 g2 b4 g4 h6 c3 e5 c2 h7 f4 d6 g3 b6 f2 b7 f3 e6 Ne7 b5 Qc7 d5 Ng8 b6 Bh6 e7 Qd8 Nc3 Nd7 b8Q Bb7 Ra3 Bg5 Bb5 f1Q Qc8 f2 Bf4 c1R Ne4 Ra6 Nf3 g1B Ne1 Nh6 Rf3 Rc5 Qc1 Qh3 Nf6+ Kf7 e8N f1N Ng4 Bd4 Qa8 Ne5 d7 Nc4 d6 Be4 b7 Bdf6 b8N Kf8 Qd5 Rb6 Qf5 Rbc6 Rg1 Rg8 h8N Nfe3 Be5 Bh4 Ng6+ Kf7 Rh1 Ng2 Ne7 Kf8 Rhf1 Qc7 d8Q Qd7 Qc8 Rg6 Qe6 Nf5 Qd5 Qd8 d7 Nd4 Bc7 Rg5 Nd6 Rf5 Rb3 Rf3 Rb1 Rc3 Qf5 Qe8 Qa6 Qg6 Qe5 Qf5 Qa8 Qf3 Qf5 Qd3 d8R+ Kg7 Rf3 Nce3 Qa7 Nb3 Ka3 a4 Rd7 Kf8 Kb4 Nd4 Qa5 a3 Ka4 Rc2 Qad2 R2c3 Qa2 Nc4 Rd8+
3KRbr1/1qN4B/2bk1Q1B/p1Nr3Q/1Rn5/1QN4b/RpR5/1qn2Rqn b - - 0 1 illegal: No proof kernel
n1B2r1N/1N2RrR1/K2b3Q/pN1q2R1/1R1p1k2/nB1Qr3/1bR1b2B/3q3q b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 h5 f4+ Ke4 b4 e5 f6 a5 g5 d3 b6 d5+ Kb5 d2 c4 d4 b7 h3 f7 h4 c5 h2 c6 h3 f5 Bg7 f8Q Qc7 f6 Ra7 g6 Kf4 f7 e4 Bc4 e3 Na3 e2 Ra2 e1B Rc2 Qe7 c7 Qe6 Ne2+ Ke3 Rg1 h1Q Ng3 h2 Bb3 Qf3 Ne4 h1Q Rg5 Qhh3 Nc5 Na6 b8R Be5 g7 Ne7 g8R Nc6 Qh6 Kf4 f8N Bd6 Rb7 Qhh1 R8g7 Qed5 Qe2 Bd7 c8B Bg4 Qd3 Qd1 Rbe7 Nc7+ Kb6 Bf3 b5 Ne5 Nb7 Bg4 Qe6 Rh3 Qh6 Re3 Ng6+ Kg3 Rh5 Be2 Rg5+ Kf3 Nh8 Kf4 Bc4 Ra8 Bb3 Rb8 Ka7 Nc4 b6 Na8 Nb5 Na3 Ka6 Rh3 Bg4 Rf8 Bc8 Rf7 Nd8 Re3 b7 Bb4 b8R Bg3 Bd7 Bc3 Bc8 Bb2 Rbb7 Qdg1 Rb6 d1R Nb7 Rf1 Bd2 Rf2 Be1 Rff3 Bf2 Qd1 Bg1 Be1 Rbc6 Bb4 R6c4 Bd6 Ra4 Re5 Rac4 Ref5 Rb4 Re3 Nc5 Rf8 Nb7 R5f7 Bh2+
b1K1R3/2R1Q1Q1/1r5p/1n3n2/1r1n2BR/1NrR1qB1/1B2pNk1/2bRq1Qb b - - 0 1 illegal: No possible last move
n2b1K2/2RN3Q/n4R1p/Q2N4/b2qQQr1/2Bp1rn1/1kr1N2Q/3BbR1q b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 a5 b4 d5 g4 d3 c4 Kd4 f4 e5 c5 h3 g5 h2 b6 e4 f6 e3 f7 h6 Kg6 d2 b7 e2 c6 e1B b5 a4 c7 a3 b6 a2 f5 Qd7 f6 Qb5 Nc3 Na6 b8Q Be6 c8Q Ra7 b7 Qb6 Qa4+ Bb4 Kg7 d1Q f8Q Ra8 g6 Ne7 f7 Bd7 Qcd8 Nc8 Be2 Be8 Rb1 a1R Bd2 Ra2 Rc1 Rc2 Bg4 Kd3 Nge2 d4 Rf1 h1N Nd5 Ba5 Qh2 Ng3 b8N Qc5 Qb4 Nb6 Bc3 Ba4 Nd7 Ra7 Qfe7 Na8 f8R Rg8+ Kf7 Qb6 g7 Qc6 Qdb8 Bd8 Qf4 Rb7 Qbc5 Rb3 Qa5 Ra3 Qeh4 Kc4 Qe7 Kb3 Qee4 Qd6 Rb1+ Ka2 Rb7 Qa1 Rc7 Kb3 Bb4 Kb2 Bd2 Rf3 Bc3+ Kb3 Bh5 d3 Bg4 Qb6 Bh5 Qd4 Bg4 Rh8 g8Q Qb1 Qgg6 Rg8 Qh7 Qc1 Bh5 Rg4 Ke8 Ka2 Rf6 Qb1 Kf8 Qb7 Bb4 Kb2 Bc3+ Kb3 Qh4 Rg5 Ne3 Rf2 Qe6+ Qc4 Qh2 Qh1 Qee4 Qd4 Ng1 Ka2 Be2 Rf3 Nd5 Rg4 Bd1 Ka3 Ne2 Kb3 Bb4 Kb2 Bc3+
Q2q2b1/NB1qR1Bn/QpQ2Nk1/1N3r2/1rq2N2/2p1R2n/bb1Rn1K1/1N6 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 f4 c5 Kf2 e5 g4 h5 a4 c4 a5 e4 a6 h3 f6 h2 f5 c3 g5 b6 d6 h4 d5 e3+ Kg2 e2 a7 e1Q d7 b3 d6 b2 Qa4 Qde7 d8R Nd7 Nh3 Bg7 Ba6 Nf8 d7 Q1e6 Nf4 Ng6 Re1 h1N Re3 Bh6 Bb7 Qc4 Qc6 Ng3 Re8 Qf8 Ra2 Ne2 R8e5 Rb8 a8N Qd8 Nc7 Bf8 Re6 Ba3 Nb5 Rh5 R6e4 Ra8 Bd2 Ra4 Re7+ Kf8 f7 Kg7 Bc1 Nf6 Bd2 Nh7 f6+ Kh8 f8N Rb4 f7 Kg7 Na7 Nh8 g6 Rf5 Nb5 Kh6 g7+ Ng6 g8Q h3+ Kf2 h2 Kg2 Kg5 Qh8 Kh6 Qe5 Kg5 Qb8 Kh6 Qa7 Kg7 Qa6 h1Q+ Kf2 Qd1 Kg2 Ne5 Bc1 Nf3 Bd2 Nfg1 Bc1 Ng5 Nh7 N1h3 Nf6 Nh7 Bd2 Kh6 f8Q+ Kg5 N4h5 Kg6 Qh8 Qe8 d8N Be6 Qf8 Bg8 Nf4+ Kg5 Qc8 Qa4 Nc6 Qd8 Nca7 Qd1 Bc1 Q1d7 Qe8 Kh6 Qa8 Kg5 Qf7 Kh6 Qd5 Kg5 Qc6 Kh6 Nd2 b1B Rc2 Ba2 Nb1 Bb2 Rd2 Ba1 Ba3 Bb2 Re8 Ra4 Bf8+ Kg5 Bg7 Rb4 Nd3 Kg6 R8e6 Qdd4 Re7 Q4d7 Nf4+
3k1NBr/7b/pnr2Q2/b2q2QK/1nB3Qp/BBbq2R1/1Rr5/NB1N3n b - - 0 1 illegal: No possible last move, all moves rejected
q1Q1n1Nb/1RpR1K2/k2bQp1R/3N4/1nB2q2/1bQ2n1r/qN1Q1r1B/6Q1 b - - 0 1 illegal: No possible last move, all moves rejected
nBknb1r1/2R3nQ/1B3nrr/N2p3Q/1nqR4/1B1N2b1/2Q1p1KQ/Q5N1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 a5 g4 e5 c4 h5 f4 d5 Kf2 Kd7 c5 h3 c6+ Kc7 g5 e4 g6 h2 f6 d3 f7 e3+ Kg2 a4 g7 a3 f5 a2 f6 d2 Bc4 e2 Na3 h4 Bb3 Rh6 Nc4 Bc5 f8N Bd6 f7 Bd7 b6+ Kc8 c7 Bg3 b5 Nc6 Ne6 Be8 f8Q Nf6 g8Q Rg6 Qh6 Rb8 Qc2 d1N Nc5 Nc3 Be3 Na4 Rc1 a1N Qgh7 Qd6 Nd3 Qc5 Q6g7 Nd8 Na5 Qc4 Qgh6 Ra8 Qh5 Rb8 Qb1 Nc2 Qa1 Nb4 Bf2 Qc5 Rc4 Qc6 Rd4 Qc4 Nh3 Ra8 Rc1 h1R Ng1 h3+ Kf3 h2 Kg2 Nc5 Be3 Nce6 Bf2 Na6 Be3 Ng7 b7+ Kd7 b8B Kc8 b6 Rh6 Nf3 Rg1+ Kh3 Rg2 Ng1 h1N Rc3 Bf4 Rc2 Rgg6 Bf2 Bg3 Kg2 Nb4 Be3 Nf2 Rc3 N2e4 b7+ Kd7 Rc1 Nc5 Rc3 Na4 c8Q+ Ke7 Qc6 Nb6 Qca4 Ke6 Q4a2 Kd7 Qc2 Qa6 Rc8 Qc4 Rc7+ Kd6 Ba7 Rc8 b8Q Na8 Rc6+ Kd7 Qf4 Rc7 Bb8 Kc8 Qfh4 Qa6 Rc3 Qc4 Qh2 Rc5 Rh4 Rc7 Bb6 Rf7 Re4 Rf8 Rd4 Rg8 Re4 Qc5 Rcc4 Qc7 Re7 Qc5 Rd4 Qc4 Rc7+
4R1B1/1K1N2b1/1QpN2b1/r1B2rQ1/1nN1N1bQ/Br1p4/3bb1k1/3RqnN1 b - - 0 1 illegal: No proof kernel
1kNK1B2/n2NrQ1R/1n1qB1Q1/1Q1r4/7N/5bnp/N4pRb/1BbrNb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Kg4 h5+ Kf5 a5 d4 a4 g4 c4 b4 c3 e4 c2 d6 f6 d5 f3 g5 h3 g6 h2 g7 a3 e5 h4 e6+ Ke8 b6 a2 d7+ Ke7 b7 Kd6 b5 Kc7 d6+ Kb6 e7 Ka7 Ke6 f5 e8N f4 Nc3 f2 Qh5 f3 Bd3 f1B Ba3 c1N Qf7 f2 Nf3 Bg2 Bb1 Ne7 g8B Qc7 b6+ Ka6 Ne1 Nbc6 b8N+ Kb7 Ng7 Rh7 Nf5 Bh6 Rg1 h3 Nh4 Bf3 Rg2 h1R Kf6 Ng6 d8Q Nf4 d7 Na7 Ke7 Nce2 Qe8 Qd6+ Kd8 Nd5 Qg6 Be3 Be6 Re7 Qef7 Ng3 Nc6 Bg5 Ne5 Kb8 b7 Bc1 Nc4 Nb5 Nb6 Ra5 Bc5 Ka7 b8N Ba6 Nc8+ Kb7 Be3 Na7 Bh6 Bf1 Bf8 Rb5 Bc2 Rc5 Rb1+ Ka8 Rb7 a1B Bb1 Nb6 Na2 Bab2 Rc7 Rb5 Rc5 Bf4 Rh5 Rd5 Rh7 Bbc1 Bg4 Re3 Be6 Be5 Ke8 Re4 d8Q Bef4 Nd7 Re2 Nf6 Kb8 Qdd7 Re3 Kd8 Rg1 Bg4 Re7 Be6 Nh5 Nc2 Bh2 Ne1 Ng3 Nc2 B1e2 Qgg7 Bd3 Qgg6 Rd1 Ne1 Qc5 Nd6 Bf1 Qa4 Nd7 Nc8 Qd6 Qb5+ Nb6+ Nd7+
r1b1kB2/2Nrn1B1/R2r2RR/KB3N2/B3p2b/1pn2Q2/3bnq1N/1n2BQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 e5 Kd2 c5 g4 b5 a4 h5 f4 e4 f6 h3 a5 h2 f5 b3 Kc3 c4 g5 b2 g6 h4 a6 h3 d6 Nd7 Kb4 c3 g7 c2 a7 Ne7 g8R Rh4 d5 Ne5 f7+ Kd7 f6 Qe8 Ka5 b4 Nd2 b1N Nc4 b3 Rg6 Rh8 Ne3 Rh4 Bb2 c1B Nf3 Rg4 Bb5+ Kd8 d7 Rg1 Qf1 Rg2 Nf5 Rd2 Bc3 Rd3 Be1 Nc3 Ra3 Bfh6 f8B Bcg5 f7 Bh4 Bg7 Bd2 f8B Qf7 Ra4 Rb8 a8B Nc4+ Kb4 Rb6 Ra6 Rd6 Bac6 Na3 Ka5 Nab1 Ba4 Qf6 Bcb5 Qd4 Rgg1 Qf2 Rg6 Kc7 d8N Rd4 Rc6+ Kd7 Ne6 Ke8 Ra6+ Rd7 d6 Rd5 Rhg1 h1R Rh6 h2 Rg3 Rg1 Rgg6 h1N Nh2 Ng3 Nc7+ Kf7 Bh8 Nge2 Bhg7 Rg3 Bh8 Rgd3 Bhg7 Rd8 d7 Rd6 Qh3 Re8 d8Q R3d5 Qf3 Rd7 Ne6 R5d6 Qc7 Red8 Qc4 Ke8 Qcd3 Bb7 Qc4 Ra8 Qcd3 Bc8 Qc4 Ng1 Qf1 Nge2 Nc7+
1nNRB1r1/3r3N/rp1b3k/1b3q2/QNBb4/6RN/1pQn1QN1/B3K1nb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 d4 e6 g4 c5 a4 Kg7 f6+ Kh6 a5 b3 f7 h3 a6 b6 a7 c4 f5+ Qg5 f6 Ba6 Nc3 Bb4 f8Q+ Kg6 f7 Qf5 d6 h5 d5 h4 d7 h2 Kd2 e5 d8Q e4 g5 h3 d6 Ba3 d7 Qf4+ Ke1 Bb7 Nd5 Bc8 Ne3 Nf6 Bb2 c3 Qd2 c2 Rd1 c1R Qde8 Rc7 d8N Ba6 Ba1 b2 Qa4 Bb5 Nc6 Bc5 Qc8 Qf5 f8N+ Kh5 g6 Kh6 g7 Rf7 Ne7 Rg8 Bg2 Ba3 Qf2 Bc5 Rd8 Bd4 Neg6 Rc7 Ne7 Rb7 Bf3 Rd7 Bh5 Nd5 Qcc4 Nf4 Be8 Ne2 Nf3 Ng1 Ng5 Rc7 Ng2 Rd7 Kf1 e3 Qe2 Qc5 Nfh7 Qd5 Nc8 Qe4 Nh4 Qf5 Qec4 e2+ Ke1 Bc5 Qcc2 Bd6 Kd2 e1B+ Kd1 Rh8 g8B Bc3 Bc4 Bd4 Kd2 Rg8 Ke1 Ne2 Rf1 h1N Rg1 h2 Nh3 Nhg3 Rg2 Nf1 Rg3 h1B Ng2 Nc6 Bd3 Ng1 Bc4 Rb8 a8N Nd2 Nc7 Ra8 Nd5 Nb8 Nb4 Ra5 Ne3 Ra6 Ng2
nBB3B1/bpRk4/b1r3BN/2Q4K/R2r4/n1rBr1b1/1N2pQ1R/2N2q1n b - - 0 1 illegal: No possible last move
1BR2RBr/rqbb2KQ/5Q2/3rrB2/R2q2Nn/n1pR3R/p1k1N2r/7N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 a4 b6 f3 d5 f2 d7 h3 b7 a3 d6 h2 Ne2 h4 Bh3 f1R Nd2 f4 Bf5 f3 Qc2 Qg5 d8Q f2 d7 h3 Qf6 Qg2 d8R Rd1 Nf1 Bd7 Nfg3 f1Q Bf4 Nh6 g8B Na6 b8N Qff2 Nc6+ Kc5 b3 Nc7 b4+ Kb5 Qb1 Ka4 b5 Ra7 b6 Nb5 b7 Be7 Rc8 Bd8 b8R a2 Ra8 Na3 Qd3 Rf1 Rd1 Re1 Qb1 Qc5+ Rd5 Qb4 Rd3 Qc4 Qb7 Bb6 Qc7 Kb3 Qb7 Kc2 Rf8 Be8 Qh7 Qd4+ Ke6 Bd8 Ne5 Bc7 Ng4 Bd7+ Ke7 Rd1 e5 Qb7 e6 Re1 Rfc8 Rd1 Kf8 Re1 Be4 Nf5 e7 Nh4 e8R Rd1 Bf5 Rd2 Rg1 h1R Kg7 h2 Rf8 Rd1 Rg2 Rhe1 Nh1 Rd2 Rgg3 Rdd1 Nhf2 h1R Rh3 Rh2 Nh1 Rd2 Ng1 Re5 Ne2 Bd6 Rc4 Bc7 Rac8 Rd1 Rb4 Re1 Ra4 Rd5 Nc1 Ree2 Bd6 Ree5 Ne2 Bb6 Bb8 Ba5 Bf7 Bc7 Bg8
q2Qqrqr/q1NnNQ2/R2k4/2R2Rp1/pq1B2B1/6KB/bNN2n2/2b3N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 b6 c4 b7 c3 b5 f4 h5 c2 e6+ Kd6 e7 Nh6 e8B Bf5 b6 Bh7 Bd7 Ra7 Nd2 Be4 Bb2 c1Q Nc4+ Ke7 d6+ Kf7 d5 Ng8 h6 Qc3 h7 Qb4 Qb3 Qe8 Bh3 Bb1 Bd4 Nh6 Nb2 Ba2 Rc1 a4 Rc5 Ra8 Qc4 Nc6 b8N Ne5 b7 Bg7 Bf5 Nd7 Na6 Kf8 b8N g3+ Kf1 g2+ Kf2 Kf7 Nc6 Qg8 Nc7 Rf8 Ne7 Be5 Ne2 Kf6 Rf1 Ng4+ Kg1 Nf2 Kh2 Kf7 Bfg4 Kf6 Ng1 Kf7 Bc3 Bd4 Qb3 Be3 Bd4 Bc1 Qc4 Nd1 Qb3 f2 Qc4 f3 Kg3 Ne5 d7 Kf6 Re1 f1Q d8Q f2 d6 Qe2 d7 f1Q Qb3 Qf5 Rf1 Nf2 Qd5 Qfe4 Qc4 Qa8 Qb3 Qe6 Qc4 Rhg8 h8R Qf7 Rh7 Rh8 Rh6+ Qg6 Qd5 Qe4 Qb7 Kf7 Qa7 Qg8 Ra6 Qec6 Nf5 Qe6 Ne3 Qe7 Nc2 Qe8 Qc8 Ke7 d8N Nd7 Nc6+ Kd6 Qd8 Nd1 Rff5 Nf2 Ne2 Qb6 Ne7 g1Q+ Bg2 Qe1 Ng1 Qd2 B2h3 Qb4 Raa5 Qbb8 Qb7 Qba7 Qf3 Qef7 Qb3 Qe8 Qf7 Qh1 Ra6+ Qc6 Raa5 Qca8 Ra6+
r1n1bNb1/1RKb4/NrQ1R2B/qk1b1p2/np4B1/2R2R2/3bR1q1/1B3Q1Q b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 g4 h5 a4 b5 d4 h4 a5 h3 g6 b3 g5 b2 d6 Kc6 a6 h2 d5+ Kb6 e5 c4 a7 b4 e6 c3 g7 c2 g6 Qh4 d7 Rh5 d8Q+ Kc5 e7 Bd7 e8R Qe7 d6 Qg5 Be2 Kc6 Nc3 b1B Ra2 Ne7 g8R Nc8 g7 Nb6 Nb5 Qe7 Nc7 Rh6 Na6 Qf7 Re6 Rh5 Nh3 Na4 Rf1 Rh6 Ng5 Bc8 d7+ Bd6 Nh7 Qg6 Nf8 Qg5 Ra3 Ba2 Rc3+ Bc4 Qf6 Kb5 d8R Bd7 Rde8 Nc6 Qe7 Bc7 Qed6 Ne7 Rb8+ Bb6 Rb7 Nc8 Rf2 Rf6 Qf1 h1B+ Rg2 Rh6 Rh8 Rf6 g8B Qg7 Bd2 c1Q Rh3 Qa1 Bf7 Qg8 Bh5 Qa3 Bd3 Be8 Bg4 Qg5 Rc7 Be3 Bb1 Qa2 Bc1 Bd2 Rch7 Qg7 Rg3 Qc7 Rgh3 Qa5 Rc7 Rb8 a8Q Rb6 Qb7 Rh6 Qa8 Rh8 Rb7 Rg8 Kf2 f3 Kg3 Qc2 Rge2 f2 Rf3 Ba2 Rc3 Bhd5 Rf3 Be1 Kf4 Bd2+ Ke5 Bac4 Rc3 Bb3 Rhf3 Rh8 Qe1 f1B Qd1 Bg2 Qf1 Bdc6 Qe1 Bcd7 Qf1 Be1 Bh6 Bd2 Rg6 Bg8 Re6 Na7 Qd8 Qb2 Qh4 Nc8 Qhh1 Qc2 Rff2 Bd5 Rff3 Qb2 Kf6 Na7 Ke7 Nc8+ Kd8 Qc2 Kc7 Qe4 Rff2 Qg2 Rff3 Rh7 Kd8 B7c6 Rb8 Ra7 Rb7 Bcd7 Kc7 Ra8 Qc6+
1KNQ3b/2n3r1/3b1b1B/k1p1B3/bNRq1Npb/4r2B/R2N2qR/3NnQ2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 e5 h4 a5 b4 g5 d4 c5 f4 Kc7 f5 Kb6 f6 g3 h5 a4 d6 g2 d7 g4 f7 a3 d5 a2 d6 Bb7 h6 Rh7 Nh3 g1B+ Nf2 Ne7 Nd2 Rh8 h7 Na6 Rh2 Rg8 h8N Ra7 Bh3 Bd5 Qf1 Nc7 Ng6 Ra8 Nf4 Bg7 f8N Nc6 N8g6 Bb3 Ne7 Bf6 Nc8+ Kb7 b6 Rg7 b5 Nb4 Nf3 Ba4 Nd2 Qh8 d8R Nd3 d7 Ne1 Rf8 Rb8 d8Q Ra8 Rh1 Bh2 Nd1 Bg3 Rh2 Ra6 Rb1 a1B Rb2 Ra7 Ra2 Bc3 Ke2 e3 Re8 e4 Rf8 Kb8 b7 Ra6 Rf7 Re6 Rd7 Bce5 Rd4 Bd6 Rc4 Bgh4 Ne7+ Ka7 b8N Kb6 Nbc6 Re5 Nb4 Ka5 b6 Re6 b7 Re5 b8B Re6 Qh1 Re5 Kf1 e2+ Kg1 e3 Nc8 Nf3+ Kg2 e1B Qf1 e2 Ne4 Bc3 Nd2 Bhg5 Kg3 Ne1 Nfd5 Bh4+ Kf4 Re3+ Kf5 Nc2 Nf4 e1Q Rg2 Rf3 Rh2 Qg3 Ke4 Ne1 Kf5 Kb5 Ke4 Qg2 Kf5 Na8 Ke6 Re3+ Ne4 Re7+ Kd5 Bfd4 Qc7 Rd3 Nh5 Bdg3 Bg5 Re3 Bh6 Bge5 Qd7+ Ka5 Nf4 Qd8 Qd6 Bh8 Qd7 Bdf6 Kd6 Rg7 Nd2 Bce5+ Ke6 Bfg5 Qe7 Qd4 Qd8+ Nb6 Bd6 Be7 Bc7 B5f6+ Be5 Bf8 Qe7 Nd5 Kd6 Nb6+ Kc7 Na8+ Kb8 Nc7 Qd7 Bd6 Qd8
2b1R2N/2Br1N1n/n2bp1rQ/2Q1pR1K/Qq4B1/q1QnN3/knn3Q1/2R5 b - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 f6 h4 gxh4 e5 fxe5 cxd5 Qd6 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Kf3 Kd6 g4 Kc5 b4+ Kd4 g5 h5 g6 a5 b6 a4 g7 a3 b7 a2 b5 h3 b6 h2 d6 h4 d7 h3 Kg4 Kd5 d4 Rh5 f4 Ra4 f5 Ra7 f6 Ra3 f7 Rc3 Ne2 Kc4 d5 Rb3 d6 Qe8 Bf4 Rd3 Nd2+ Kb4 Nc4 Rh6 Ne3 Ka3 Rc1 Rg6+ Kh5 a1N d8N Qa4 d7 Na6 b8Q Ka2 b7 Nc2 Qa7 Qa3 b8Q Rd5 Rg1 h1Q Rg5 h2 Qb4 Qe4 Qac5 h1N Qbc3 Nf2 Rf5 Nd3 Bh3 Nb2 Bg4 Qeb4 Bh2 Rd2 Nf4 Rd5 Qdd4 Rdd6 Qe4 Rd3 Qec6 Rd1 Qa4 Nf6+ Kh4 Nh7 g8Q Rd3 Kh5 Rd5 Nc6 Rd2 d8R Rd3 Re8 Rd7 Nd8 e6 Bg1 Be7 f8Q Bd6 Nf7 c6 Qb6 c5 Qh6 c4 Qc5 Ra7 Bf2 Rd7 Bh4 Rc7 Bd8 Rd7 Qd2 c3 Bc7 Nd4 Qgg7 c2 Qd3 Bb7 Qdc3 Bc8 Rg1 c1N Qg8 Rf6 Ng6 Nc2 Ngh8 Ncd3 Rc1 Rg6 Be2 Rf6 Qg2 Rg6 Bg4
b3B2R/N1q1Q1R1/KnbpbN2/1N1NpNq1/1Q3bn1/3bB2k/2rr1R2/3B4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 a5 b4 h5 f4 e5 g4 d3 g5+ Ke7 f6+ Ke6 b6 Kf5 Kb5 d6 c4 h3 g6 d2 f7 h2 b7 a4 c5 h4 g7 a3 c6 h3 c7 a2 Qg4+ Ke4 f5+ Ke3 f6 Kf2 Be2 d1B Nf3 Rh5 Na3 Rh4 Nd4 Nd7 b8N Nh6 g8B Nc5 Nf5 Bd7+ Nc6 Ne6 c8N Bc2 Na7 Qc7 Bd1 Nf4 Ka6 Bd3+ b5 Be6 Nb4 Rc8 Nd5 Be7 Qg5 Ng4 f8N Kg2 f7 Rh8 Rf1 h1B Be3 h2 Rf2+ Kh3 Nd7 Rh5 Rc1 a1Q f8R Qa2 Rc3 Qd2 Bf7 Rh6 Qg7 Bg5 Be8 Bf3 Qe7 h1B N7f6 Qc1 Nb4 Bc6 Rh8 Nd5 Rc4 Ba8 b6 Bf4 b7 Nb6 b8Q Bhc6 Nbd5 Qd2 Bd4 Qe3 N3b5 Qg3 Rb4 Qh4 Rb3 Qg5 Be3 Qh5 Rbb2 Qd7 Rfd2 Na4 Rb4 Qg5 Qf8 Qdg7 Rdb2 Bcd7 Rc4 Qh7 Bf2 Kh2 Qc7 Nb6 Qc5 Kg2 Qg7 Rh2 Qb4 Kh3 Rc7 Rg2 Rb7 Rc7 Re2 Rc2 Be3 Bc6 Qc7 Rg3 Rg2 Rf3 Qd8 Rff2 Rd7 Rfd2 Rf2 Qhh5 Rg7 Qh7 Rgg8 Qgh6 Rg5 Qc7 Rg7 Qh5 Qe7 Qh6 Nh4 Qg5 Nf5+
5qnn/k1B2N2/1p4Q1/2bN3B/1Q1q1n1Q/pKNr3r/RQ1R4/2B1nQnb b - - 0 1 illegal: No proof kernel
RnQ3nb/2q1rbN1/p2k1q2/N1QrnBp1/2Q3BQ/B3N3/1Rn2n2/1K1Q4 b - - 0 1 illegal: No possible last move, all moves rejected
1NkbQN2/p1B1Qn1K/2B1Rp2/rr2qr1b/2B2q2/4Rr2/1rRQQ3/4Q2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 h5 Kf5 h3 g4 f6 Kg6 h4 b4 c4 d4 h2 e4 f3 b6 c3 e5 c2 b5 h3 d6 f2 g5 Bh6 e6+ Ke8 e7 Kd7 e8R Nc6 d5 Qe7 b7 Rh7 b8Q Qe6 b6 Qe3 b7 Qe2 Bf4 c1R Na3 Rc5 Rc1 Qf3 Bc4 f1Q Re3 Nd4 Rc2 Q3f2 Nb5 Q2e2 Nf3 Ne6 Qe1 Nd8 Nfd4 Bf8 Nc7 Rh5 Na6 Nh6 Ne6 Ndf7 Kh7 Ra5 g6 Be7 g7 Rf5 g8B Ng4 Nf8+ Kd8 d7 Nf2 Qd6 Rb8 Qe5 Rb5 Rg1 h1R Rg7 h2 Qe6 Ra8 b8Q Rg1 Qbd6 Nh1 Nb8 Rgg5 Qdb4 Rg3 Qbd2 Rf3 Be5 Ra5 Rg4 Qff2 Rge4 Qg3 Bb5 Qf4 Bc6 Ba6 Bd6 Qb5 Qe5 Qc5 Qb2 Be2 Re6 Qc3 Qb5 Bd1 Qbe2 Qcd4 Na6 Rb8 Be5 Rbb5 Nb8 Qg5 Bg3 Qe5 Bf4 Kc7 Bg3 Bd8 d6+ Kb6 Bf2 Qgf4 Bg3 Bc7 d8Q Rb2 Bd7 Kb7 Qe8 Bd8 Bc6+ Kc8 Qe7 Nf2 Qe8 h1R+ Bh2 Rg1 Bg3 Nh1 d7+ Kc7 Bh2 Rgg5 Qg2 Qed4 Rc5 Rh3+ Qh4 Be7 Rc4 Rfb5 Rd3 Bh5 Re5 Qg3 Rde3 Rf5 Rc2 Nd8 Bc4 Nf7 Qge2 Qg5 Qhe1 Rhf3 Re6+ Qg3 Be4 Qd5 d8Q+ Kb7 Qd6 Bd8 Qa3 Kc8 Qae7 Qh4 Bd6 Qf4 Bc7 Qde5 Bc6
2bq4/bq6/1r1NR2B/Bq4QB/N1RB3b/3Kn2p/qRp2kQn/B1Q1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 Ke2 Kg5 d4 Kg4 b6 Kg3 d6 a5 b5 c5 d5 f5 d7 h5 e5 a4 b7 h3 b6 f3+ Kd3 f4 e6 h2 e7 h4 e8R f2 d6 h3 Na3 f3 Bh6 Ra6 Qc1 Rh7 Rb1 Be7 Nb5 a3 Rb2 a2 Be2 Bh4 Re6 Nc6 b8B f1Q b7 a1B Ba7 f2 b8B Re7 Bb6 Qe1 Bh5 f1Q+ Ne2+ Kf2 g4 Nf6 g5 Na5 g6 Nc4 g7 Ne3 g8Q Qa5 Rg1 h1Q Rg4 Qc6 Rc4 Qb7 B8a7 Qa4 Ba5 Nfg4 Qg5 Qfg2 Qd5 Rb6 Nec3+ Nc2 Qdg5 Nh2 Qg8 Qa2 Na4 Qgc6 Qgg5 Rg7 Qd5 Rg1 Bc3 Re1 Be5 Qg8 d8Q Qcd7 Qdg5 Qgd8 Qe4 Qdc6 d7 Qd5+ Rd4 Qdc6 Nd6 c4+ Kd2 c3+ Kd3 Qb5+ Rc4 Kf1 Bh8 Ne3 Bd4 c2 Qed5 Qe7 d8B Kf2 Bc3 Qed7 Ba5 Qdc7 Bf6 Qd8 Bfc3 Ra6 Bad4 Rb6 Rb3 Bb2 Qh1 Ba3 Ba1 Bc5 Qhd5 Ra6 Rb4 Ba7 Rb2 Rb6 Qdg2+
1N1n1Bk1/4RR1r/bQNq1N1n/2r3NQ/6b1/bqp2Qb1/2p3nB/K2N3B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 b4 Kf7 f4 h5 g4 c5 d4 e5 Kd2 a5 Kc3 a4 Kb2 e4 g5 e3 f6 h3 g6+ Ke6 g7 Kf7 b6 h4 b5 h2 b7 e2 b6 e1Q d5 h3 f5 Nc6 b8Q Qe6 d6 Nh6 g8N Rh7 b7 Ra5 d7 a3+ Ka2 Rb5 Nf3 c3+ Bc4 c2 Bd5 c4 Bf4 Bc5 Re1 h1B Nc3 h2 Ng5+ Kf8 f7 Bf3 Re3 h1N Nf6 Nf2 Bh2 Bg4 Bh1 Nd3 Rb1 Bd6 Ka1 a2 Qc7 Bf4 b8N Ne1 Qb6 Ng2 Re4 Qd5 Re7 Rc5 Rc1 Qc7 d8N Bg3 Rb1 Kg7 f8B+ Kh8 Qf3 Qcd6 Rf1 Ba6 Nd1 Qd3 Qd5 Qb3 Qf7 Bh4 Qh5 Bg3 Ne8 Kg8 f6 Na5 Ndc6 Nb7 Rf5 Nd8 f7+ Kh8 Rd7 Qe3 Be7 Qee6 f8Q+ Qg8 Kb2 a1B+ Ka2 c3+ Qff7 Nb7 Bf8 Bb2 Re7 Ba3 Ka1 Nd8 Qd5 Qge6 Rff7 Kg8 Qf3 Qb3 Nf6+
B6q/qq3B1Q/RNk2nQ1/Qb1R1Qr1/1b2Q1bp/5p2/1Nqn2r1/3RB2K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 h5 d4 a5 g4 f5 Kg2 c5 e4 c4 b6 a4 e5 a3 e6+ Kd6 g5 a2 b5 c3 b7 c2 e7 Be6 e8B Ne7 g6 Bh6 b6 Nd7 b8Q+ Qc7 b7 Ra3 g7 Bg8 Qf3 Bg5 Nh3 Rb3 Nc3 Nc5 Qe4 Rb2 Bf7 Nb3 Nd1 Nd2 Qf8 f3+ Kg1 f4 b8Q Bh6 Qa7 Qb7 Bg2 f2+ Kh2 Rb5 Nb2 f1B Bf3 Bh7 g8Q Bf5 Qg6+ Kd7 d6 Nd5 Qa5 Nf6 d5 Bg4 Rg1 Bg7 Kh1 Rg8 Qa7 Be2 Rd1 Rc5 Qa5 Bb5 Qh7 Bh8 Qfh6 Rg5 Q6g6 Rc8 Bg2 Rg8 Bf3 Bg7 Bg2 Bf8 Bf3 Nb1 Bd2 c1Q Be1 Nd2 Bg2 Qc2 Bf3 Kc8 d7+ Kb8 Bg2 Bb4 d6 Qa7 Qef5 Qb7 Bgd5 f3 Nf4 h3 Bc6 h4 Nd5 Qa7 Ba8 Rg7 Rab1 a1Q Nb6 Qb7 Qe4 Qa3 Ra1 Qe3 Nc8 Qea7 d8R Rg8 d7 Rg7 Qa3 Kc7 Nb6 Rg8 Qef5 Kc6 Qa5 Rg7 Rb8 Rg8 d8Q Rg7 Qdd3 Rg8 Kg1 Rg7 Rd8 h2+ Kf2 h1Q Rd5 Qh3 Kg1 Qg3+ Kh1 Qgb8 Qde4 Qh8 Qhh6 Bh5 Qgh7 Rg2 Ra2 R7g5 Q6g6 Bg4 Ra4 Be7 Qab4 Bc5 Ra6 Bd6 Qa3 Bb4 Qa5
3n1N1K/qRNq1q2/1B4b1/2R2RrB/1bNnkpq1/p1Q4N/3B2Qr/3N2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 c5 b4 c4 g5 a4 b6 a3 g6 c3 b5 f3 b7 h3 g7 h4 b6 f6 Qd3 f2 Bd2 c2 Nc3 c1B Nd1 h2 Nh3 Bd7 Qc3 Ne7 g8Q Ba4 Qg2 Nec6 Kf5 Nd7 Kg6 f5 b8N f4 e4 Bc2 b7 Nf6 Na6 Rh7 b8R Ng4 Be2 f1Q Nc7 Ra5 Rb7 Ne3 Bh5 Qf2 Ra2 Bd3 Rc2 Qd7 Re1 Nf5 e5+ Ke7 e6 Kd6 e7 h1Q Re2 Qhg1 Re5 Rh6+ Kf7 Nd8+ Kg8 Be4 Qd3 Bb2 Rc5 Bc3 Qdg3 Bb4 Qc3 Bg7 Qh1 Qg4 Qg2 Ng3 Rg5 Bg6 Rf5 Ne2 e8N+ Ke7 Ng5 h3 Nd6 h2 Nc4 h1Q Nh3 Bh8 Ra7 Bf6 Rb7 Bh4 Kg7 Bg3 Kg8 Bh2 Kg7 Bg1 Kg8 Qc6 d6+ Kd7 d5 Nd4 Qgg3 Qe4 Qg2 Qe6+ Kg7 Bh7+ Kh8 Qf7 Bg6 Rh4 Bh5 Bg6 Nb5+ Ke8 d7+ Ke7 d6+ Ke6 Qc2 Qc7 Qc3 N8c6 d8B Qcd7 Bb6 Qe3 Nhf2 Rh2 Nh3 Nd8 Rb8 Qa7 d7 Qef3 Rb7 Qd5 Re5+ Kf6 Nc7 Rb5 Re8 Kf5 Rf8 N8e6 d8N Ra5 Nc6 Nd8 N6e5 Qc6 Nd7+ Qd5 Qf2 Ke4 Qfg3 Qfe6 Rf5 Qf7 Nf8 Qdd7 Rc6 Re5 Rc5 Rd5 Rf6 Rg5 Rff5 Qaa4 Qf2 Qa7 Qg2+
N1Q2k2/3B2b1/B1r2B2/1r1R2Rb/Qp3r1r/qR5n/3K1bBp/2Q1BNnq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 e5 a4 b5 g4 c5 f4 h5 g5 e4 f6 b3 f5 h3 g6 b4 d6 e3 g7 c4 d5 h4 a5 e2 f7+ Kd7 f6 b2 a6 c3 a7 c2 Kd2 e1R Nf3 h2 Nc3 b1R Ba6 h3 Na4 Bb7 Ra3 Re8 Rg1 h1Q Rg5 h2 Rb3 Nh6 g8B Bg7 f8Q Re5 f7 Nc6 Qf1 Rb8 a8B Ng4 Qd1 Qe8 Nb6+ Kd8 d7 Re4 Qc5 Rf4 f8Q Nd4 Be6 Ne2 Qb5 Rh4 Qa4 Ng1 Qh8 Ke7 d8R Bc8 Bd7 Nf2 d6+ Kf7 Be4 Nfh3 Na8 Rb5 Bb2 Rc1 Bf6 Qe5 Beb7 Qa1 Qe1 Rb1 Qc1 Qa3 Bdc6 Rb2 d7 Rc4 Ke3 Rcf4 Nd2 Ra2 Nf1 Rb2 Kd2 Rb1 Qb2 Re1 Bg2 Re6 Qc1 Reb6 Bbf3 Bb7 Bg4 Bf3 Rc8 Be2 Rcc5 Rc6 Rcd5 Bd1 Qc8 Bf3 Bf5 Bh5 Bd4 Ke7 d8B+ Kf8 Bf2 Bd4 Be1 Bf2 Qb2 c1B+ Kd3 Rcc5 Bd7 Rc6 Qa1 Bb2 Qc1 Bf6 Kd2 Bg7 Bf6+
3n1r1N/k2N1r1B/B2n1nK1/1Qn2B2/1p1p1RB1/Rb3QB1/1q1r4/1R1Qq1b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 b5 Kd3 d5 a4 Kd7 g4 Kc7 c4 Kb6 f4 e5 a5+ Kb7 a6+ Kb6 c5+ Ka7 g6 h5 f6 b3 f5 b2 g7 b4 g5 h4 f7 h3 g6 h2 c6 Qb6 c7 Rh3+ Nf3 Rh7 f6 Be6 c8B Qd8 Nc3 b1R Ng5 Bh3 Na4 Be6 Ra3 Rb2 Nb6 Bc5 f8R Nc6 f7 Qf6 Nd7 Nd8 Bf4 Rg2 Rg1 h1N Bg3 Qf2 Be2 Nf6 Bg4 Qb2 g8Q Rgh2 g7 Bb6 Bf4 Ng3 Rh1 Nf5 Bg3 Rb8 Qh8 Bc5 g8B Nd6 Bb7 Rg7 Qh5 Rf2 Bh7 Re2 Re8 Ra8 f8Q Rf7 Rf1 Rc8 Rf4 Rc2 Qd2 e4+ Ke2 d3+ Kf1 Re7 Qfh6 e3 Nf7 e2+ Kg2 e1N+ Kh3 Nc6 Kh4 Bg1 Kg5 d4 Nh8 Bb3 Kg6 Rf7 Qe5 Rb8 Qh1 Rd8 Re7 Rdf8 Qf3 Nd8 Qc1 d2 Qf5 Ng2 Re1 d1Q Be4 Rd2 Qb5 Qe2 Bef5 Qe6 Rd1 Ne1 Qc2 Qe4 Rb1 Ka8 a7 Nd3 Qcd1 Nc5 Qbf1 Kb7 a8B+ Kc8 Qb5 Qe1 Bb7+ Kc7 Nb6 Kb8 Ba6 Ka7 Nd7
k3BB1b/1b6/qbr1r2N/R2NNp1N/Q1B1Nq1R/3n2Rr/5nKp/4Qr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 Kc7 d4 Kb7 b6 f5 b5 h5 d6 c4 d7 f3 d5 c3 d6 c2 e5 h3 g5 h2 e6 h4 g6 a4 e7 a3 e8B h3 g7 a2 Nc3 Qe7 d8Q Ra7 d7 Qg5 Nd5 Qe7 Ba3 c1R Bc4 Ra6 Qa4 Rc3 Ne2 Nh6 g8N Qg5 Ng3 Ka8 Ne4 Nc6 Qe7 Qf4 d8N Ne5 Ne6 Bb7 Ng7 Nhg4+ Kf1 f2 Nh6 Re3 Nh5 Nd3 Rg1 Bg7 Rg3 Bd4 Qh4 Rh7 Bf8 Rc7 Qe7 Rc6 Qeb4 Re6 Qe1 h1R+ Rg1 h2 Kg2 Bc8 b7+ Kb8 Ba3 Rh3 Bf8 Ka7 b8R Bb7 Rd8 Bb6 Rd7 Ka8 Rh7 Ba7 b6 Rc6 Rb1 a1B Rb5 Bf6 Ra5 Bh8 Rg7 Nf6 Rg3 Ng4 Qc3 Re6 Rb1 Rf1 Qe1 Rc6 Rb4 Rd6 Qb5 Qe5 Nec3 Bc8 Ra2 Re6 Bb3 Qd6 Raa4 Qc6 Ra5 Rh1 Qa4 Qb7 Rf4 Qc6 Kf3 Qb5 Ne4 f1Q+ Qf2 Qc1 Kg2 Rf1 Qe1 Ngf2 Rh4 Qf4 b7+ Kb8 Ba3 Rac6 Bc4 Qa6 Be7 Bb6 Bf8 Ka7 b8N Bb7 Nd7 Ka8 Ne5
2N2NB1/R2qNnR1/b2q1n2/5p2/1bQp4/Br3q1Q/1N1bb2B/K2NkrR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 Ke6 h4 Ke5 b4 f5 c4 g5 Kc2 d5 Kb2 a5 b6 f3 b7 d3 h6 Kd4 b5 g4 c5 d2 e5 Ke3 h5 Kf2 h7 d4 b6 g3 h6 a4 c6 g2 c7 Nf6 e6 Qd5 e7 Qd7 e8R Ng4 Qb3 d1Q Nc3 Nf6 Qc4 Bg7 Nge2 g1Q Re7 Ra5 Nf4 Re8 h8N Qg3 h7 Bh6 Rg1 Nc6 b8N Ba6 c8N Ne5 b7 Ke1 Nhg6 f2 h8Q Qdf3 Rg7 Nf7 Nd1 Re3 Nc6 a3+ Kb1 Rae5 b8B a2+ Kb2 Rc5 Nf8 Rd3 Be2+ f1B N6e7 Bg5 Qh3 Rb3+ Kc2 Rcb5 Ba3 Rb1 Bd3 R5b3 Be4 Bh6 Bd5 Bg5 Nb2 Bh6 Ne2 Bd2 Nc3 Qe5 Ncd1 Qed6 Rh7 Bb4 Rgg7 Be2 Bc7 Q6c6 Bh2 Qcd6 Be6 Ng5 Bg8 Nf7 Nf2 Rd1 Rc1 a1B Kb1 Kd2 Ka2 Rf1 Nfd1 Ke1 Na4 Bac3 Nab2 Bd2 Ka1 Qdf4 Rg1 Bb7 Rhg7 Qfd6 Rc3 Ba6 Re3 Ng4 Re5 Nf6 Ra5 Bb5 Ra8 Ba6 Ra7
NQ2Bq1N/2bN1q2/1q1QR1B1/3p2k1/n1nBr1N1/1rRp1b2/5KN1/1Rq3r1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 g4 Kf6 f4 h5 b4 e5 b6 a5 b7 h3 c5 h4 g5+ Kg7 c6 a4 c7 a3 b5 a2 g6 Kh6 b6 d3 g7 d6 f6 h2 f7 h3 f5+ Qg5 f6 e4 Na3 Nd7 b8R Ra4 b7 Qf4 Nb5 Ne5 Be3 Nc4 Bd4 Ne7 g8N+ Kg5 Nh6 Nd5 Ne2 Bg4 c8B Bf3 Bf5 Nc3 Rb1 a1Q Ng4 Qb2 Nc7 Qb6 Kf2 Rh4 Bd7 Rb4 Be8 Rb3 Rc8 Na4 b8Q Qc1 Rg1 h1R Nf4 h2 Na8 Bh6 Rg3 Rg1 f8N h1Q f7 Bg7 Ng2 Be5 Nd7 Qf4 f8N Qf7 Qe1 d5 Be2 Qh3 Qb4 Bc7 Qd6 Qh2 Rh3 Qhf4 Ng6 Qc1 Nh8 e3+ Kg3 Qf8 Bd1 e2 Kf2 Qcf4 Rh1 Q4f7 Rh3 Rh7 Rh6 Rg7 Rf6 Rh7 Re6 Rh4 Nge5 Re4 Ng4 Bd8 Rc6 Bc7 Rc5 Nd2 Rc2 Nc4 Rc3 Rf1+ Kg3 e1Q+ Nf2 Bh5 Bg4 Qd2 Bf5 Bf3 Bg6 Qc1 Ng4 Rg1 Kf2
Kb3rk1/2q1R1R1/3BnQ2/2pNR1r1/bq2R1n1/B2N1B2/1n3pQ1/2nR2Nq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 b4 a4 d4 f6 g4 Kf7 d6 f5+ Kd5 a3 e4 h3 g5 h2 d7 h4 b6 h3 b5 a2 b7 f3 e5 f2 b6 f4 g6+ Kg7 e6 f3 e7 Rh6 e8R Ra4 Be2 f1Q Qc2 Qc7 d8Q Na6 b8N Qb7+ Nc6 Qg2 Nc3 Rh5+ Re5 Nh6 Ba3 Bd6 Qf6+ Kg8 g7 Ng4 Re1 Qc7 b7 a1N b8B Nb3 Nb4 Bd7 Nd3 Nc1 Bd1 Qg3 Re4 Rg5 Qg2 Qh4 Be2 Ra5 Bd1 Ba4 Be2 Kh7 g8R Rb5 Rg7+ Kh8 Ba7 Rb8 Bd1 Rf8 Bb8 f2 Re7+ Kg8 Bf3 Nb4+ Ke6 Qb6 d5 Bc7+ d6 Qa7 Nb2 Nbd3 d7 Bd6 Kd5 Qc7 Rf5 Be5 d8R Bg3 Rdd7 Bf4 Nc4 Nb2 Ne5 Bg3 Nd3 Be5 Nge2 Bd6 Rg1 h1N Rd1 h2 Ng1 Ng3 Rfe5 h1Q Rg7+ Kh8 Rde7 Nge2 Re1 Nd4 Rd1 Qb6 Bc7 Ne6 Bb8 Qb4 Bc7 Q4h2 Bb8 Bb3+ Kc6 Bc7 Nd5 Bd6 Ba7 Bb8 Bb6 Qg3 Kb7 Ba4 Ka8 Qgh2 Bc7 Qg3 Rh7+ Kg8 Bd6 Qf4 Qh6 Qf7 Qf6 Qg7 Re8 Qd7 Ree7 Qc7 Rhg7+
qr1rB1q1/1Q1Q2n1/1BK1Bp1n/p4b1N/1R1QNkqQ/4b3/1q2b3/1Q1R2N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 h5 b4 a5 g4 f3 b6 f2 b5 h3 g5 c4 g6 h4 g7 h2 b7 c3 b6 c2 Bh3 f1B Ra4 Qg5 Nc3 Bg4 Rb4 Nh6 g8N Ra7 Be3 c1Q Ne7 Qh5 Nf5+ Kd7 d6 Ke6 d5+ Kf6 d7 Qg5 d8Q+ Be7 d6 Ra8 Kd5 Nd7 b8Q Qb2 b7 Qg8 Bb6 Kg5 e4 Nf8 e5 Ne6 d7 Ng7 e6 Bfe2 Ng3 Bf5 Qd4 f6 Kc6 Bd6 e7 Bf4 e8B Be3 Qbc8 Rb8 Nce4+ Kf4 Qe7 Bd2 d8Q Be3 Bg4 h3 Qcd7 Bf2 Qf7 Be3 Q8e7 Rd8 Qh5 Rb8 Qh4 Rd8 Nf3 Rb8 Ra1 h1Q Rd1 h2 Ng1 Qf3 Qf7 h1Q Qa2 Bg6 Be6+ Qg4 Qb1 Bf5 Kc7 Rd8 b8Q Qh7 Qb7 Rb8 Bg6 Rhd8 Kc6 Qg8 Nf3 Qe1 Ng1 Qed2 Bh5 Qd3 Bhf7 Qa6 Be8 Qa8 Nh5+
2q5/Q1BnRbN1/rQp2nk1/2n1Bq2/4Bbr1/N2p1n1R/1K2RB2/QB2q3 b - - 0 1 illegal: No proof kernel
N2Rn3/1K3Q1N/pB1B2r1/4b1QB/N1b2b2/N1k2rrb/p3Rq2/Qn2N1q1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 h5 Kc5 Ke5 b4 a6 g4 h3 d4+ Ke4 f4 e5+ d6 h4 d5 h2 g5 a3 g6 a2 g7 h3 b5 c6 b6 Nf6 g8Q Be7 b7 Ng4 f6 Qd7 Kb6 c5 f7 c4 f8B c3 f5 c2 f6 Rh6 f7 Ra7 Be3 c1B Be2 Nf6 Na3 Ne8 Nf3 Bf6 Ne1 Rg6 Bh5 Qg4 d7 Nc6 d8N Ne7 b8N Qg1 d6 Nd5+ Kc6 Rg3 d7 Nc3 Ne6 Nb1 Bb6 Bf4 d8Q Qf2 Rf1 h1R Nd7 h2 Bd6 Rhg1 f8N h1B Nh7 Rf3 Qc7 Rg6 Nec5+ Ke3 Rg1 e4 Rg2 B6e5 Qc1+ Ke2 Ncd3 e3 Nb2 Ra8 Qg7 Ra7 Qc5 Kd2 Rh2 e2 Qb7 Bf6 Qg5 Kc3 Qf7 B6e5 Qb8 Nd2 Rd1 Nb1 Qc7 Bg2 Qcd8 Bh3 Qdf6 Ng7 Rg2 Bb7+ Kc7 Bd5+ Kb8 Bc4 Rh2 Ra8+ Kb7 Rf8 Be3 Ne8 Na4+ Kb3 Qh6 Bg5 Bdc5 Qg1 Nd3 e1Q Ndb6 Bb2 Re2 Qgf2 Na8 Qeg1 Ne1 Bf4 Rd8 Rfg8 Bd6 R6g7 Bb6 Rgg3 Qhg5 Rg6 Q6g7 Bbc1 Qa1 Be5 Nb2 Kc3 Re4 Bd2 Re2 Bdf4 Na4+
nb1q4/1N1BN3/p1b1b2R/2bRrR2/2Q4Q/BpN5/1r2knK1/RqR2nQ1 b - - 0 1 illegal: No possible last move
1kNq1n2/1r1BR2p/2NK2pB/q1Nnr3/1q1NN2R/1b2r1b1/2r3QQ/2R2B2 b - - 0 1 illegal: No proof kernel
nQbqq1R1/k5p1/N1b3R1/2r2R2/3p4/nrbB1QK1/1nNB2Q1/R1R1N1n1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 f4 a5 Kf2 e5 c4 d5 b4 Kd7 h4 Kc7 h5 Kb6 f6 a4 c5+ Kb7 f7 e4 c6+ Ka7 c7 e3+ Kg3 d3 f5 d2 h6 d4 h7 e2 f6 a3 Qc2 d1B Bd2 a2 Rh6 Na6 Rg6 Nh6 Nf3 Rb8 Na3 e1N Qc6 Nd3 Nc2 Nb2 Nfe1 Bf3 Bd3 Be7 f8R Nf7 Rg8 Nd6 f7 Ndc4 f8R Na3 Rf5 Qe8 Qf6 Bc6 Qg5 Bc5 Qf4 Bb6 Qf3 Ba5 b6+ Ka8 b5 Bc3 b7+ Ka7 Rc1 a1Q Rd1 Qa2 Ra1 Qd5 Qg2 Qdd8 Qf3 B8d7 c8R Nc7 Qg2 Na8 Rc7 Rc8 b8N+ Bb7 Rc4 Rc5 Na6 Bdc6 Qf3 Bc8 b6+ Kb7 Nab4 Kb8 b7 Ka7 Na6 Ba5 Kf4 g3 Kg4 g2 Kg3 g1N Qg2 Bc3 Qf3 Kb6 Qg2 Kb5 b8Q+ Ka5 Qf4 Kb6 Qff3 Ka7 Rgf8 Rg8 h8Q Rb5 Qhh2 Rb3 Rcc5 Rh8 Rg8 Rh6 Rc1 Rh5 Ra5 Nb1 Ra1 Na3 Rff6 Rc5 Rf5 Bb4 Qh6 Ba5 Qhf4 Bc3 Qb8+
4kbr1/K2Nnp1n/B1Q1N2B/1bQ1q3/2rB1pQ1/1r1q1Q2/br2R2R/1Q1R4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kd3 h5 Kc4 h3 b4 h2 g4 a4 e4 a3 b6 a2 Kb5 c4 g5 h4 d6 h3 g6 c3 e5 c2 e6 Ra3 d7+ Ke7 d5 Rh7 b7 Ra6 d6+ Kf6 e7 Ra3 e8R Nh6 g7 Nf5 g8Q Rh4 Qgg4 Na6 b8Q Rd3 Qa8 Rd4 Qc6 Bh6 Nd2 Nc5 Qdf3 Ne7 Bb2 c1Q Nb3 Ne6 Ne2 Qc3 Nc5 Rc4 Nd4 Nf8 Rd1 a1R Nde6 Qe5 Bd4 Rb1 Be2 Rb2 Bf1 Qc7 d8Q Qd7 Kb6 Ba6 b5 Nh7 Qdc7 Bf8 Ka7 Rh6 b6 Bb5 b7 Rg6 b8Q Rg8 Bd3 Qd8 d7 Rb3 Rhe1 h1R Re2 h2 Rf2 Re1 Be2 h1B Rh2 Rf1 Qa5 Rf2 Qa3 Qc8 d8B Qd7+ Qbb7 Qd5 Qc1 Qe4 Qb1 Qd3 Qbc7 Rg5 Bf1 Rfb2 Nd7+ Kg6 Qe2 Bd5 Qgf3 Rg1 Q7d6 Kf5 Qdc5 Rg8 Qeg2 Ng6 Bg5 Ne7 Nb8 Kg6 Bh6+ Kf5 Qgg4+ Kf6 Rd8 Ng6 Rd6 Ke7 Nd7 Ke8 Rdd2 Ne7 Rde2 Rcc2 Qb7 Rbc3 Qbc6 Ba2 Bf2 Rcb3 Rd4 Qc3 Rd1 Qd3 Bd4 Rc4 Bg1 Rc1 Qa6 Qde4 Ref2 Ba4 Qac6 Qe3 Bc4 Qd3 Ba6 Rc4 Re2 Bb5 Bd4
5KB1/1rRb1pRN/2r5/1rQ1n1Q1/R3pbN1/q1NN4/2qN1Qkn/r1Bq4 b - - 0 1 illegal: No proof kernel
BBn3r1/2Qq1pb1/Q2NN3/2R1p2n/b2B2b1/N2k1r1Q/n3N2q/1Kn1R2N b - - 0 1 illegal: No proof kernel
R1Bkq1N1/4p1br/4B3/BNq3R1/NQpQ3r/3Rn1bq/1Rb1K3/q4nR1 b - - 0 1 illegal: No possible last move
4rk2/3qp3/1rNq1n1N/3pn2N/B1Rb2b1/B1B1Q1n1/R1RK1R2/Rr3rQ1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 h5 f4 d5 b4 a5 g4 a4 b6 d3 b7 a3 c5 h3 f6 h4 f7+ Kd7 f5 a2 g5 h2 b5 h3 b6 Ra3 f6 Ra4 c6+ Ke6 c7 Rh6 g6 Bd7 c8R Rh5 g7 Qe8 Ba3 Rd4 Ne2 Na6 b8B Nc5 b7 Na6 Rc4 Rh8 Kd2 Nb4 Ng3 Nc6 Nc3 Ne5 Nb5 Re4 Rac1 a1R Nh5 Rb1 R1c2 Bc8 Bc7 Qd7 b8Q Rf4 Be2 Rf1 Na7 Rb6 Nc6 Qd6 Rg1 h1Q Qa7 h2 Qe1 Qf3 Bd1 h1N Qe3 Ng3 Ra2 Qd7 Ba4 Qf4 Bcd6 Qh6 Bdb4 Rb1 Rcc2 Qf4 Bc3 Qb4 Rh1 Qbd6 Qg1 Rf1 Rh4 Rfb1 Rc4 Rf1 Ke3 d2 Ra1 d1R Raa2 Rde1+ Kd2 Reb1 Ra1 Nh6 g8N Nhg4 Nh6 Bg7 f8R Rg8 f7 Nf6 Rd8 Re8 f8R Bh8 Raa2 Bg7 Rg8 Bh8 Rgg4 Bg7 Rgf4 Bh8 Rf2 Bg7 Ng4 Kf7 Nh6+ Kf8 Ra1 Q7c7 Rca2 Bg4 Rc8 Qcd7 Rc7 R6b3 Qd4 Rb6 Qe3 Qd8 Bd4 Nf7 Rc3 Ng8 Ne5 Q8d7 R7c4 Bh8 Nc6 Bf6 Bdc5 Bd4 Rcc2 Nf6 Bcb4 Ne5 Bc3
5kn1/NRp1q2n/2qnr1B1/1B2q1br/R1R5/1NRp4/Q1RB1KNq/1Q5b b - - 0 1 illegal: No proof kernel
r1qb1kNQ/1BpR1b2/1Bn1B1R1/5r1N/prb3b1/2nB2BQ/1NKR1q2/8 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 h5 g4 f5 e4 a5 d4 a4 Kd2 h3 e5 h4 b6 f3 b7 f2 g5 h2 e6 f4 d6 h3 b5 f3 g6 Rh5 d5 Qe7 g7 Qd7 b6 Rh7 e7 Qg4 d7+ Kf7 d8R Qh5 e8B+ Ke7 d6+ Kf6 d7 Ke7 Nc3 Qc5 Nge2 Qa3 Nf4 Ra7 Bd3 f1Q Rg1 h1B Nh5 f2 Ra2 h2 Qg4 Bc6 Nd1 h1B Nb2 Nf6 g8B Rh6 Be6 Bcd5 Qh3 Nc6 b8N Ne4+ Kc2 Bc4 b7 Nc3 Be3 Ra8 Rg6 Bhd5 Bb6 Qg1 B8f7 f1R Be8 Bg7 B8f7 Bf6 Be8 Na7 Nc6+ Kf8 b8Q Rf5 Ne7 Nc6 Ng8 Qe3 Ra1 Qd6 Rd1 Qf2+ Rd2 Qa3 Nf4 Rh4 Nh5 Bb7 Qc8 Qe7 B8f7+ Qe8 Qb8 Bf3 Bd5 Bba6 Bfe6 Bg4 Qc8 Ne5 Bb7 Nc6 Qb8 Ba2 Rc8 B6c4 d8B Bg5 Bf6 Qd8 Be5 Qe8 Bg3 Bd8 Bd7 Bf7 Be6 Bc4 Ba7 Bg5 Rd8 Bf6 Rd7 Qc8 Bb6 Bd8 Qf1 Rh1 Qh3 Rb1 Nd1 Rb3 Nb2 Rb4 Qa7 Ne5 Qa5 Nc6 Qe5 Na2 Qf6 Nc3 Qh8
K2N1BR1/1pB2rQ1/3b1QRQ/n5bn/Qb6/4rrpQ/3qB1q1/NbR2k2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 a4 g3 f4 b3 h4 g4 f6 c6 f7 b2 a5 e6 a6 g2 f5 g3 f6 Rh7 a7 Ne7 h5 Qa5 h6 Ng8 Nf3 g1R Ne5 Na6 Na3 b1Q Qa4 Qa2 Be2 Nb4 Nc2 Rd1 Ba3 Rf1 Bd1 Qa6 Rc1 Rf3 Na1 Qe2 d3 Rb8 a8R Qg2 Ra6 Be7 f8Q Rf7 h7 Qad2 h8Q Bd7 Re1 Re8 Qfg7 Bf8 Ra8 c5+ Kc4 Be7 d4 Nc6 Kb5 Na5+ Nc6 e5 Kb6 e4 Ka7 e3 Qh3 e2 Nd8 Bf5 Rc8 Bc2 Ka8 Bb1 Rh1 e1B Qgh6 Rg7 f7+ Nf6 f8Q Rf7 Qfg7 Bf8 Rf1 Re6 Rf2 Nh5 Re2 Be7 Re4 Bg5 Rg4 Be7 Rg6 Bf8 Bb2 c4 Rb8 c3 Ba3+ Kc7 d6+ Kb6 d7 c2 Bd6 Ree3 d5 Be7 Bc7+ Kc5 d6 Kd5 Ne6 Bg5 d8B Bf4 d7 Bd6 Qa3 Kc4 Qa4+ Kd3 Be7 Qdf2 d8Q Bb4 Qdf8 Kd2 Qfh8 Ke1 Rg8 Kf1 Nd8 Qd2 Bf8 Ba2 Rb1 c1B Qf6 Bca3 Rc1 Bb1 Qfg7 Bf4 Qf6 Bg5 Q8h7 Bd6 Q7g7 Bab4 Be2+
2RBq1B1/pn4K1/1rR2BBp/1Nn3QR/2N4n/1k3N2/q3BQrn/5bbq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 f5 e4 c5 d4 f3 d6 c4 d5 h6 g5 c3 g6 f4 g7 c2 d7 f2 b6 f3 d6 h3 b7 h2 Ra6 Kb3 Qd2 Qb6 d8B Ne7 Kf6 Rg8 e5 Nf5 e6 Qc7 e7 Qc6 e8B Qb6 Be2 f1N Bg6 f2 Na3 Qc7 d7 Bc5 Nf3 Qa5 Rc6 Nh4 Nc4 Na6 b8N Qa2 Qe1 Ng3 Bg5 f1N Qf2 c1Q Kf7 Bb6 Bgf6 Nc5 Na6 Qe1 Nc7 Ngf5 Nb5 Ba6 Bc3 Re8 g8B Re6 Bcf6 Nd6+ Kf8 Ndb7 Kg7 Ka4 b4 Kb3 Bde7 Rb8 d8Q Re5 Qd5 Rg5 Bd8 Rg3 Qg5 Rg2 Bed3 Qe8 Be2 Bc7 Nc3 Bf4 b5 Be3 b6 Bd4 Rg1 h1Q Nb5 Nh2 Rd1 Nd6 b7 Be3 Rd5 Bd4 Qfg3 Bg1 Re5 Ra8 b8R Ndb7 Rbc8 Rb8 Kh8 Nd6 Rd5 Rb6 Qf2 Ndb7 Kg7 Na5 Qf4 Qe4 Nca3 Qe5 Bd1+ Qc2 Nc7 Bf1 Nc4 Qe4 Rh5 Nab7 Nb5 Qe8 Be2 Qa2 Qg5
bBn4Q/2r1N3/N5B1/R1bk2bp/B3b1bB/rpbqn2Q/NB3K2/R6Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 a4 Kd6 d4 c5 f4 b5 f6 e5 f5 e4 g5 h3 f7 e3 g6 h6 g7 e2 a5 b3 a6 c4 a7 b2 f6 b4 Nf3 c3 Nh4 h2 Ng6 c2 Nc3 b1B Bb2 c1B Na2 Ne7 g8B b3 Bh7 Bg7 f8Q Ba6 f7 Qc7 Qc8 Bd2+ Kf2 Qd7 f8B Bf6 Rg1 h1B Rg5 h5 Bh3 Qc7 Bd7 Bb4 Bc6 Bc2 Qh3 Bc8 Qb1 Bg2 Qbh1 Bg4 Bg7 Qd8 Rf5 Kc7 d6+ Kb6 d7 Nd5 Rg5 Ne3 d5 Kc5 d6+ Kc4 Rb5 Bg5 Bge5 Bc5 Bh2 Re8 Ne7 Bcf5 Bg6 e1B+ Kg1 Bc3 Kf2 Bd5 Bg3 Bfe4 Bf4 Na6 Be5 Rc8 a8N Nb4 Nc7 Ra8 Bg3 Ra3 Ra5 Kd4 Ba4 Nc6 Na6 Na7 Ng8 Re6 Ne7 Ba8 Bh4 Nc8 Bg3 Qh8 d8Q Kc4 d7 Rc6 Qe8 Qd4 Qh8 Qd3 Bh4 Rc7 d8B Ra7 Bb6 Rd7 Ba7 Rc7 Qf8 Kd4 Bb8 Ke5 Qh8+ Ke6 Ng8 Kd5 Ne7+
q1R1R1BQ/N1B1KBB1/2RBn1Q1/p1nN2Qb/7r/b2k1b2/1p5r/br1r4 b - - 0 1 illegal: No proof kernel
1N6/Q1K1k3/q1R1pr2/1N1r2R1/nBR1b3/3B1N1n/QQr2rnp/1nQQb3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 c5 Ke3 h5 Kf4 a5 Ke5 c4 f4 c3 b4 c2 g4 e3 d4 h3 d6 e2 d7+ Kf7 b6 e1N f5 h2 g5 h4 g6+ Kg7 d5 h3 b7 e6 b5 a4 d6 a3 b6 a2 Ba3 c1R Nf3 Rh4 Bb4 Nf6 Na3 Rh6 Bd3 Ra5+ Nb5 Rc2 Qc1 Na6 b8N Ng2 b7 Qb6 d8Q Ne4 d7 Nd2 Qc7 Nb1 d8Q+ Bd7 Qc4 Bc6 f6+ Kg8 g7 Kf7 g8R Be4 Rf1 h1N Rg5 h2 Qdd4 Ke8 Qdb2 Nc5 f7+ Ke7 Qd1 Rf2 Qcc1 Rf6 Re1 Qa7 Re2 Bh6 Rc2 Qa6 Rc4 Rc2 Nc7 Nf2 Nb5 Nd2 Rb1 a1R Qa2 Nh3 Qcb2 Kd8 Rc1 Na4 Rc6 Nb1 Kd6 Rf2 Rc4 Rc2 Rg4 Bd2 Rg5 Be1 Qbc1 Bg6 Qab2 Ra2 f8Q+ Be8 Qh6 Bg6 Qh4 Bh7 Qf2 Be4 Qa7 Ke8 Kc7 Rf2 Qbb3 Rac2 Qa2 Kf7 Nd7 Ke8 b8Q+ Kf7 Qbb6 Ke8 Nb8 Kf7 Nbd4 Rd5 Nb5 Ke8 Qd4 Kf7 Qdb2 Ke8 Bd2 Ke7 Bb4+
1b1r4/1bR1R1r1/nRp1RQ1B/1B1q1QN1/6Qp/b1krB3/1Nb2KR1/2n3r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 g4 Kd6 b4 a5 e4 f5 g5 h5 e5+ Kd7 d6 Ke6 d7 Kd5 b6 h3 b7 h2 g6 f3 g7 f4 e6 h4 e7 a4 e8R a3 b5 a2 b6 c6 Re6 Rh5 Nh3 Nf6 g8R Ne4 Rg2 Ng3 Na3 Na6 b8R Rh7 b7 Rg7 Nc4 Ne2 Nb2 Ba3 Be3 Nc1 Bb5 f2+ Kf1 Qg5 d8B Qh5 Rhg1 h1R Ng5 Rh3 Qg4 Rg3 Rb1 a1B Ba5 Rf3 Bad2 Rh3 Re7 Bf5 Rf8 Bc2 Rfe8 Rd8 b8Q Rg3 Qbc8 Rh3 Ne6 Ke4 Rc7 Qd5 Ree7 Rg3 Na4 Bc3 Nb2 Ba5 Rh1 Bb6 Rh3 Ba7 Qd7 Bb8 Qc8 Qa2 d5 Rf3 d6 Qd5 d7 Rg3 Nc4 Kd3 Ng5 Rf3 Ba4 Rg3 Rb6 Rf3 Bb5 Rg3 Rg1 Rf3 Kg2 f1R Rh2 Rd1 Re1 Rg3+ Kf2 f3 Re2 Rdg1 Rg2 Rh3 Bf4 Rg3 Bde3 Kc3 Nb2 Rd1 Rh2 Rgg1 Rg2 Rd3 Re1 Rf8 d8Q Rfg8 Qdd7 Rd8 Qde6 Qd6 Bc5 Ne2 Qf6+ Rd4 Bc4 Nb4 Nh3 Qd5 Bh6 Nc1 Ke3 f2 Qcf5 f1B Kf2 Bfd3 R1e6 Be2 Ba2 Ba6 Bc4 Bb7 Ng5 Na6 Bf1 Rh1 Bb5 Rg1 Q6g6 Rdd1 Be3 Rd3 Qgf6+
3Qr3/qbb1Q2N/2p1b3/1QR1n1Q1/R1rp1NrN/1KBB2pQ/2R1n3/4kn2 b - - 0 1 illegal: No proof kernel
2b1B3/4bQ1Q/1p6/2ppNnr1/nB6/B1qR1rRQ/K1B3rn/1BkN1b1N b - - 0 1 illegal: No proof kernel
BK1nrb1N/N2pRQ1N/RQ2bB1p/r2q4/Q1R1bRnp/4r3/3k4/4Rn2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 b4 e4 g4 h6 f4 a4 c4 d3 c5 a3 b6 a2 b5 d2 b7 e3 b6 e2 c6 e1R c7 Bg7 Kd6 Re2 g5+ Kf7 g6+ Kf6 Bg2 Ra6 Na3 Re5 Qa4 d1B Bb2 Bg4 Nb5 Rh7 Nh3 Qe8 Ng5 Rh8 Nf7 Nc6 b8R Nb4 Na7 Ra5 b7 Bh5 Rhe1 Rh7 Nh8 Bd1 Ra8 Bg4 b8Q Qd8 Qb6 Bb7 c8R Be4 Rc4 Nc6 Re3 Qf8+ Kc7 Qc5 Rae1 Bf8 g7 a1N Bd4 Qd5 R3e2 Ne7 g8Q Ng6 Kc8 Nb3 Bb2 Ke7 f6+ Kd6 f5 Nd2 f7 Nf1 f6 Re8+ Kb7 Be6 Bc3 Bg7 f8N Ne5 f7 Ng4 Bf6 Bg6 Qg1 Nd8+ Kb8 Be4 Bf3 Qh5 Qb6+ Kd5 Nfg6 Qf5 f8R Qg5 Rf7 Bf8 Re7 Rg7 Qf7 Qd2 Rf2 Qd4 Ne5 Rg5 Neg6 Re5 Bh1 Qd3 Rf4 Qd4 Rc6 Qc4 Rc5+ Kd4 Rc8+ Kd3 Rc7 Qd5 Rc4 Bg7 Nf8 Kd2 Nh7 Bf8 Nb5 Bb1 Ra6 Re3 Bf3 Qg5 Bc6 Be4 Na7 Qd5 Ba8
1Bn1Q1R1/2bR1RB1/1R1Q2R1/1Bk1r2b/rpq3Np/1b2qr2/1n2p3/3QK2N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 Kd6 g4 c5 f4 h5 g5 e5 g6 b5 a5 e4 g7 c4 f6 h3 f5 h4 a6 h2 a7 c3 f7 b3 f6 b4 Ne2 b2 Bf4+ Kd7 d6 Kc6 d7 e3 d5+ Kc5 d6 c2 Na3 b1R Rg1 c1Q Ng3 h1B Nc2 Rh5 Ra6 Rb3 Rb6 Re5 Bb5 e2 Ne3 Qe7 d8Q Qc4 d7 Bd5 Ng4 Nc6 Nh1 Rf3 Qc7 Qe8 d8R Bd6 f8R Ne7 g8R Bce6 f7 Nc8 Qb8 Na5 Rd7 Bc7 Rg6 Be4 Rf1 Bc2 Rfg8 Bb3 f8B+ Qe7 Bg7 Bf7 Rge6 Bh5 Rg6 Qce6 Bh2 Nc4 Rf2 Nb2 Bg3 Rd3 Rf7 Rf3 Bf4 Qc4 Bg3 Nd6 Qf8 Nc8 Qe8 Rb8 a8Q Rb7 Bf4 Ra7 Qe4 Ra4 Qed3 Rg5 Bh2 Qe3 Bhe5 Bd8 Bc7 Re5 Bb8 Bc7 Qd6+
1N1rb1r1/1qnq1k1Q/1N3bbK/2qp2RR/2NN3p/Bn4p1/2N5/1BBQ1R2 b - - 0 1 illegal: No proof kernel
rq6/r2Q1bKR/nbN2ppN/QB6/n2r4/kqRpN2b/2N2R2/B4NQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kb4 h4 a5 c4 d3 e4 a4 b6 d2 b7 a3 c5 f3 h6 f6 Kg6 d5 h7 a2 h5 f2 c6 d4 c7 Ra3 h6 Ra7 e5 Be6 c8R Qe7 Rc3 Nc6 b8N Bd5 e6 Rd7 Na6+ Ka5 b4+ Kb6 b5 Ka5 b6 Bb3 b7 Ka4 b8N Rd6 Nb4 Qd7 e7 Qd8 e8Q Qd7 Nc2 Qb7 Nf3 Rd7 Nfe1 Nb4 Ng2 Na6 Nge3 Bc5 Nc6 Qb8 Bb2 Bb6 Rh5 Rd5 Qd7 Ne7+ Kf7 g6 Kg7 Rd8 h8N Nc8 h7 Rf8 Bd3 f1B Nf7 Bh3 Qg1 d1Q h8Q Rd8 Bc4 d3 Nd2 Rd4 Rh7 Re8 Rc1 a1R Nh6 Ra3 Ba1 Rf8 Bg8 Bf7 Ndf1 Re8 Rb1 Re7 Rb5 Qb1 Rf5 Qb3 Rf2 Ra2 Qdg4 Ra7 Qe6 Nd6 Qd7 Ne4 Qdg4 Nec5 Qd7 Be8 Bc4 Bf7 Qhd8 Ra8 Ne1 Ka3 Q8c7 Na4 Qe5 Bc7 Qa5 Bb6 Bb5 Re2 Nd1 Re8 Nde3 Re7 Qf5 Rc7 Qd7 Rca7 N1c2+
1B6/rQb5/1pn5/Nn1R1n1k/Q3Bp1Q/2bQ1b1q/1B1pq1R1/KQ1N1r1R b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 d5 h4 g5 a4 f5 e4 Kf7 c4 d3 e6+ Kg7 c5 Kh6 c6 g4 a5 g3 c7 g2 e7 b3 Kc3+ d2 Kb2 b6 e8R f4 a6 d4 a7 d3 e5 Bf5 c8Q Qe7 e6 Nc6 Ra5 Bg4 Ka1 Bg7+ Nc3 Nb4 Qc4 Qf8 e7 Rb8 a8Q Bd4 Qb7 Bf5 Ne2 g1B Rd5 Bg4 Bg2 Qf5 Bb2 Be5 Nc1 Bgd4 Be4 Bf3 Rc8 Qh3 e8Q Rh7 Qa4 Ne7 Rg8 Re8 Rg2 Nbc6 Qe1 Rd8 Nd1 Bc7 Qc2 Rg8 Qb1 Rg4 Qe3 Bc3 Qed4 Nf5 Qdc4 Kg7 h6+ Kg6 h5+ Kg5 Qca6 Re7 h7 Rf7 h6 Kh5 Rgh2 Rg1 h8Q Rf1 h7 Re7 Rg2 Rf7 Nf2 d1Q Q6b5 d2 Q5d3 Qe2 Nd1 Rf8 Qf6 Ra8 h8B Ra6 Qe7 Ra7 Be5 Bd8 Bb8 Bc7 Qd8 Bg7 Bf6 b2+ Ka2 Bh8 Nb3 Bg7 Na5 Bh8 Qbc2 b1N Ka1 Na3 Qb1 Nb5 Bb2 Bc3 Qh4+
1K5Q/2r1Nb2/1p1k1qp1/Nqn5/Q1RbnbQp/N5Br/4R2N/B1Nq3B b - - 0 1 illegal: No proof kernel
1b5B/q2Q1K1b/p1qN1np1/3Q3r/3NRRb1/2Nk1B2/1q4pQ/QrQ1n1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 b4 Kd6 d4 f5 h4 c5 e4 g3+ Kf3 c4 h5 c3 e5+ Kc7 d6+ Kb6 e6 c2 d5 g2 d7 g6 h6 a6 e7 Qc7 e8N Be7 d8Q Bf8 d6 Ra7 d7 Nc6 h7 Nge7 Be2 Nd5 Ra4 Rb7 Bb2 c1Q Ba1 Rg8 h8Q Bd6 Bd4+ Qc5 Qc1 Rb8 Qh2 Rh8 Nc3 Rh5 Bh8 Nf6 Bd1 Be5 Nge2 Qe7 Rg1 Nd4+ Kf2 f3 Ke3 f2 Qa1 Kb7 b6 Kc6 b5+ Kc5 b7 f1B b6 f4+ Kd3 f3 Qc1 Nf5 Rf4 Qc6 Qc7 f2 d8Q Qg7 Qf7 Bc7 Nd6 Ne3 Qdg8 Bg4 Qc8 Ra8 b8Q Qh7 b7 Nc2 Qa2 Ne1+ Ke3 Qf7 Qaa1 Qb3 Qd7 Ra7 Ng3 Bc4 Qg8 f1Q b8R Rb7 Re8 Bb8 Ngf5 Kb4 Kd4 Qf2+ Ke5 Qa7 Re6 Qa3 Bf3 Kb3 Qe3 Kc2 Qec1+ Kd3 Re7 Rb1 Qge6 Rh6 Nd4 Ba2 Qb3 Qb2 Qb5+ Bc4 Qc5 Bg8 Qd5 Bh7 Re8 Bh5 Ke6 Bg4+ Kf7 Rh5 Ree4
2Kb4/3nqpr1/2BQ1NNp/2n1R3/Q1q1RB1p/3b2nN/q2Q3r/RkN3N1 b - - 0 1 illegal: No possible last move
3KRn2/1q1Qp1Qb/1B1N2rN/3N1B2/p3N2b/b2k1Qnp/R4B2/1rnNq3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 a5 d4+ Kb4 f4 h5 g4 c5 f5 h3 f6 h2 g5 c4 g6 a4 d6 h4 g7 c3 b6 e3 d5 c2 d7 e2 Ke6 Kc4 b4 Rh7 d6 Ra6 b5 Ra7 f7 Qe8 b7 Nc6 b8N Ne5 b6 Nf3 b7 Ra5 Na6 Qd8 b8B Rc5 Be3 c1N Nb4 Rc7 Nd5 Qe8 Bb6 Nd3 Ra2 e1B Nbc3 Rc6 Nh3 Nd2 B8a7 Ne4 Nf2 Ng3 Qf3 Nf6 g8N Bh6 f8Q Bc1 Bh3 Ba3 Nh6 Nc1 Bf5 h3 Rg1 h1Q Ncd1 Rg7 Ne4 Rg6 Qg7 Qh8 Kf7 Nh7 d8N Nf8 Ke8 Qh7 Bf2 Rb6 d7 Rb1 Ndf7 Qh8 Bae3 Kd3 d8Q Qg8 Nfd6 Qe6 Qd7 Qe5 Ng8 Qb2 Kd8 Qb7 Rg2 Qf1 Nh6 Qg1 Qc7 Be6 Qd7 Bg8 Rc2 Bh7 Rc8 Bc3 Ra8 Bf6 Rb8 Bh4 Bb6+ Kc2 Bfe3+ Kd3 Ra2 Qe1 Bf2+ Qe3 Rc8 Qa6 Kc7 Qa8 Re8 Qa7+ Kd8 Qb7 Qh1 Qe1 Qf3+
B1Nr1qQ1/qN1p1pbk/1Bb3N1/2n1r1Q1/1K1NN1Rn/p1RQ4/3q3R/5b2 b - - 0 1 illegal: No possible last move
5B2/2p1B1bN/1p1RQ1Kn/2kBb1R1/BBn3b1/5q2/Qrp1N1QN/q2r2q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 gxh5 dxc4 Ke2 Kd7 Ke3 Kd6 Kf4 b3 Kg5 e5+ f6 e4 d4 g6 f4 b2 a4 e3 h4 b6 f5 e2 d5 e1B h6 c3 a5 c2 h5 Nc6 h7 Bd7 a6 Nb4 h6 Bc3 a7 Be5 Qe1 Bg7 Bd2 Ne7 f7 Qb8 f8B Qd8 f6 Be8 f7 Bh2 Ne2 Bb5 Rg1 Rb8 a8B Rg8 h8Q Bhe5 h7 Kc5 d6 Ba6 d7 Bc8 Bd5 Nc6 Ra8 Qe8 d8B Na5 Qg3 Bd7 Qg2 Nc4 Ra1 Bg4 Bb4+ Kb5 Ra8 Nf5 Nd2 b1Q Bde7 Qc6 Nf3 Rd8 Nh2 Nh6 Ra3 Ra8 Rd3 Qa1 Rd2 Ra2 Rd3 Bb2 Rd1 Bge5 Qf6 Bbd4 h8Q Rb2 Qe6 Bg7 Be4 Bde5 Rd6 Qd5 Qh7 Qd3 Bd5 Qf3 Be1 Rh8 Qg8 Kc5 Nd4 Ne3 Bb5 Nc4 Ba4 Nf5 Nf1 Rh1 Nh2 Nh6 Bd2 Qg3 Ne2 Qf3 Rc1 Rd1 Bc3 Rd3 Rg1 Rd1 Qg3 Rdb1 Qc8 Bf5 Bdc6 Na5 Bb4+ Kc4 Qh3 Rd1 Bb7 Bh8 Bg7 Bd7 f8N+ Be6 Be1 Kc5 Nh7 Bd7 Qa2 Nc4 Bgf8 Bhg7 Rg4 Bf5 Bd5 Bd7 Kh4 g5+ Kh5 Be6 Kg6 Bd7 Rg2 g4 Rg1 g3 Qg4 g2 Qg5 Bh3 Qe6 Qe3 Rf1 g1Q Rf5 Qb3 Qg2 Bg4 Rg5 Qf3 Bb4+
3K4/pN2nQQ1/1nrB1R2/6pq/3bQN2/1B1r1N1N/1Rp1N1qk/b2b1Bq1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 h4 Ke5 d4+ Kf5 e4+ Kf6 d6 c5 b6 g5 h5 g3+ Kf3 g2 h6 c4 b7 c3 e5+ Kf5 d7 f6 h7 c2 d5 Qa5 d8N Qb6 b5 Na6 b8Q Qa5 b6 Qb4 e6 Bc5 d6 Bf2 b7 Ke5 Kg4 f3+ Bf4+ Ke4 d7 Bb6 e7 f2 e8B Qd4 Nh3 g1B Bd6 Nc7 Bf7 Ne7 Ra6 Ncd5 Ne6 Rd8 h8Q f5+ Kh5 f4 Nd2+ Kf5 Qe1 f3 Qg7 Qg4+ Kh6 Bd4 Nef4 Be5 Qc7 Ba1 b8N Nb6 Nc6 Qg2 Qe4+ Kg4 Ba2 Kg3 Nd4 Bb7 Bac4 Rac8 Bb3 Bd5 Qb7 Rc6 Qf7 Bc4 Kg7 Be2 Kf6 Bd1 Ra2 Qh2 Rb2 Qg2 Bd3 f1Q Nde2+ Kg4 Ba6 f2 Nf3 Qh2 Bac4 Qfg2 Qg7 f1Q Qf7 Ra8 d8N Bd4+ Ke6 Qff2 Rf1 Qfg1 Qc7 Rb8 Nb7 Rf8 Qg7 Rf5 Rf2 Rd5 Kf7 Qhh1 Ke8 Qhh2 Kd8 Qhh1 Nc1 Kg3 Bf1 Qhh2 Ne5 Qhh1 Nce2+ Kh2 Qd7 Bc5 Qdf5 Rd3 Qff7 Bd4 Ne6 Ned5 Rf6 Ne7 N6f4 Qf3 Bb4 Qh5 Bd6 Qhg2 Nf3+
b1BR1NnN/1Q1R2r1/k5rB/3nQK1p/B1qB3b/2b1p2B/2N1r1p1/1b2Q3 b - - 0 1 illegal: No possible last move, all moves rejected
2BR1Bb1/R3b2N/rN6/pp1bB2k/pQ1r1nb1/3n4/n1KB1Q1B/4N1qQ b - - 0 1 illegal: No proof kernel
q1r3N1/n1pnK1p1/Rb2N3/2Bp4/1rBR1Q2/nb1r3R/n4BNR/1k3R1Q b - - 0 1 illegal: No proof kernel
2b1kR1N/Qpr4n/2nQ1R2/1p1b1nrQ/B4N2/B4Qb1/1qR1B1p1/1n1Q2K1 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 a6 b4 Bf5 b5 axb5 Kf2 Be6 Ke1 Bc8 Kf2 g5 d4 f5 a4 c5 h4 g4 e4 c4 e5 c3 d6 c2 e6 f3 h6 f4 h5 Rh7 a5 Ra6 e7 Qb6 d7+ Kf7 d8R Ra8 e8B+ Ke7 a6 Rf7 a7 Rf6 h7 Be6 h8Q Ba2 h6 Nc6 h7 Rf7 Nd2 Qc5 Ba3 c1N Nh3 g3+ Kg1 g2 Rd7+ Ke6 Nc4 Nb3 Rc1 Qb4 Ne5 Nd2 Be2 Bd6 Rc2 Bd5 Ng6 Nf6 Qf8 Nb1 h8Q Qb2 Qh5 Nh7 Nh8 Re7 Bg6 f2+ Kh2 f1B Kg1 Rg7 Rf7 Rc8 a8Q f3 Qa7 Rc7 Rf6+ Kd7 Nf4 Be6 d5 Rg8 Bf7 Rg5 Rh2 Be5 d6 Bg4 Rh1 Bh3 Bb3 f2+ Kh2 Be6 Ba4 Bg4 Qff7+ Kd8 Qb3 Bc8 d7 Bd6 Qbf3 Ke7 Bd3 Be2 Re1 f1N+ Kg1 Ne3 Rf1 Nf5 Bc4 Bd3 Rff2 Be4 Be2 Bd5 Rf1 Bf7 Rf2 Kf8 d8Q+ Kg7 Nd3 Bg3 Nf4 Bd5 Qd6 Kg8 Re6 Kg7 Re7+ Kf8 Rf7+ Ke8 Nfg6 Ne3 Qe4+ Re7 R2f6 Nf5 Qef3 Rd7 Nf4 Rc7 Rf8#
1Nb1B3/r3RrQr/1RQqk3/B1Q1qn1n/4p1R1/2pBp1b1/1RN1K3/2r3R1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 c5 f4 e5 b4 a5 b6 h5 g5 e3 d6 h3 b7 a4 d5 c4 b5 h4 d7 h2 g6+ Kf6 d6 h3 f5 a3 b6 e4 g7 a2 Bd2 Rh7 Qc1 Nc6 b8R Be7 b7 Na5 Ke2 Qc7 d8R Ra6 d7 Nh6 g8B Bc5 Na3 Bd6 Nf3 Ng4 Ne5 Rb6 Re8 Re7 d8Q Qc5 Nc6 Be5 Qd4 Rf7 Rg1 h1R Nc2 h2 Re7 Qd6 Qc5 Nb3 Ba5 Ra6 Bh7 Ra8 Bg6 Ra7 Rb1 a1Q Rb2 Bg3 Bh5 Bd7 Rg8 Bc8 b8R Nd4+ Kd1 Ra6 Bd3 Ra7 R2b6 Qb2 R8b7 Qb5 Nb8 Qb2 Rg7 Qb5 Qc6 Qe5 Qa3 c3 Qac5 Nf2+ Ke1 Nh3+ Kf1 Nf4 Rg4 Be6 Bg6 Nh5 Rb2 Bc8 R7b6 Nf3 Ke2 Nh4 Rg2 Rc1 Rg1 Rf8 Be8 h1R Rh7 Rff7 Rhg7 Ke7 f6+ Ke6 Rh7 Rfc7 f7 Nf5 f8Q Rf7 Rhg7 Nf6 Qh8 Rh7 Qg8 Nh5 Qh8 Rf8 Rc7 Rf6 Qg7 Rf7 Re7+
4b2k/N6n/R3K2p/1Q2bB1Q/1rQ1pRq1/3q4/1p1BQ1Rn/Qqr1q1NB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kg7 Ke4 c5 Ke5 b5 a4 e6 f4 c4 g4 b3 d4 c3 f6+ Kh6 f7 Kg7 f5 b2 f6+ Kg6 d6 h6 g5 Kh7 d5 b4 d7 h3 a5 c2 d6 b3 a6 h2 a7 Ne7 Bh3 Na6 Na3 b1Q Bd2 c1Q Qh5 b2 Nb5 Qg6 Bf5 Nb8 Ra6 Bg7 f8Q Nd5 Qe8 Ne3 Qe7 Qg8 d8Q Bd7 Qb6 Be8 d7 Qb1 d8Q Nf1 Qdd4 Qd3 Qc4 Qb1 Kd6 Nd7 f7 Nf6 f8Q Rb8 a8B e5 Na7 Qe1 Qa5 Rb4 Qa1 Qb1 Bf3 e4 Qb7 Qd5+ Ke7 Qe1 Qbb5 Qd3 Ke6 Rg8 Qfc5 Kh8 Qf2 Rf8 Qe2 Nh7+ Ke7 Bf6+ Ke6 Qg7 g6 Be5 Nh3 Rg8 Rg1 h1Q Rg4 Rf8 Rf4 Nh2 Bg2 Qhf1 Ng1 Rf7 Bh1 Rc7 Qb3 Rc1 Q3c4 Qfh3 Rf1 Qc7 Rf4 Qg4 g7+ Kg8 Qca2 Qcc2 Qac4 Qb1 Qba4 Qgh4 Qab5 Nf6 Bg4 Kh7 g8R Qhg3 Rg6 Kh8 Rg7 Nh7 Bf5 Qh3 Rg3 Qg4 Rg2
k2n4/2B1b2n/KQp1rBqn/1n1R2Bp/N1QN1B2/2qr1R2/3pB1b1/3QR3 b - - 0 1 illegal: No proof kernel
3Rnr2/r3RRQB/1pqpbR1Q/1Bk1p1b1/8/2NQN1K1/3nrr2/R3q1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 e5 f4 Ke7 Kf2 Kd6 c4 g5 a4 b3 h6 b6 a5 g4 f6 b2 f5 d3 f7 d2 h7 Bb7 c5+ Kd5 c6 d6 f6 Qd7 a6 Qe7 c7 Qe8 c8B Nd7 h5 Rb8 h6 Nc5 a7 Nd3+ Kg3 Kd4 a8R Qc6 Ne2+ Kc5 Nf4 Nf2 Bb5 Be7 Nc3 b1Q Bf5 Bc8 f8R Be6 f7 Rb7 Ng2 Bg5 Rad8 Ra7 Ne3 Nf6 Bb2 Rg8 h8Q Ne8 h7 Qc1 Qb3 d1R Qg7 Rf1 h8Q Qe1 Qhh6 Rh8 Bh7 Ne4+ Kg2 g3 Qd5+ Kb4 Qd3 Kc5 Rh4 Rg8 Rf4 Rf3 Rf6 Nd2 Rd7 Rh8 Re7 Rf5+ Kh3 g2 Bc1 Rf2+ Kg3 Bf5 Rg8 Be6 f8R g1R+ Ng2 Qd5 R8f7 Qc6 Rgf8 Rh1 Ne3 Rhh2 Bb2 Nc7 Rc8 Ne8 Rd8 Rf8 Ng2 Rf5+ Kg4 Qb1 Bc1 Nb3 Bf4 Nd2 Ne3 Re2 Bh2 Rff2+ Kg3 Qe1 Bg1
3K2NB/3pnqp1/2B2b2/1rNqb2b/nN1k1NB1/4R3/b2R1pQ1/3Q1QNr b - - 0 1 illegal: No proof kernel
2QQq3/1Kpq1n2/rpp2n1R/1R1Rb3/2RNB3/QBB1kN2/R5r1/b2b3b b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 gxh5 Rh7 b4 axb4 c4 Rh6 c5 Rh8 c6 dxc6 d4 Kd7 Kd2 Kd6 f4 Kd5 h4 Ke4 a4 g5 f6 e5 a5 g4 f5 g3 a6 g2 f7 b3 Kc3 b2 a7 Bg7 Kb4 Ne7 Ka5 Be6 f8Q Qe8 h6 Qd7 h5 Qd6 d5 Bc8 f6 Be6 f7 Bh3 h7 Nf5 h6 Nd7 Bd2 b6+ Ka6 Ng3 Bc3 Rd8 a8B Re8 Nd2+ Ke3 Nb3 b1B Bd3 e4 Ra2 Qb4 d6 Be5 Nd4 Nf6 d7 Qa3+ Kb7 Rg8 d8R Nf5 h8Q Qd6 h7 Nh6 Ngf3 Qd7 Qa3 g1B f8R Bg2 Rh4 Bh1 Bc2 Nf7 Bb3 Rg6 Rg8 Rg2 Rg5 Bd3 Qhf8 Bc2 h8R Bf2 R8h6 Be1 Rf5 Bd2 Rg5 Bc1 Rf4 Bb2 Rfg4 Ba1 Rgh4 Qf5 Rd5 Rc8 Qd8 Qd7 Qf1 Bd1 Qfa6 Bd6 Rb5 Bg3 Rgc5 Be5 Rd5 Rb8+ Ka7 Rc8 Bb7 Rb8 Bc8 Ra8+ Kb7 Nh7 Rg4 Nf6 Q6a5 Ra6 Rgh4 Kd3 Qaf8 e3 Qaa3 e2 Qg8 e1Q Qg4 Qe8 Bf5+ Ke3 Be4 Qg3 Qgc8 Qh3 Rdc5 Qhe6 Rc4 Q6d7 R4h5 Bh2 Rhc5 Be5 Rd5
K3b2q/N2BB2n/1pp1BB1N/1r3p2/2kb1Q1N/R2q1Q1r/R3pBq1/3nR3 b - - 0 1 illegal: No possible last move, all moves rejected
3N3q/1bpQNBQp/4N3/BRB1p2p/R5Qr/nKb3Q1/4qQn1/1n3r1k b - - 0 1 legal: proof: e4 b5 h4 d5 c4 f5 cxd5 fxe4 a4 g6 h5 gxh5 axb5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 Kf7 f4 Kg6 d4 Kf5 Kd2 e5 Kc3 a5 g4+ Kf6 f5 e3 b6 Kg5 b7 Kf4 d6 Kg3 f6 a4 d7 a3 b5 e2 f7 e1N b6 a2 g5 Kf2 d5 Bd6 f8B Bb4+ Kb3 Nc6 b8Q Nd3 g6 Ra7 d6 Qe7 d8Q Nf4 g7 Ra4 d7 Kg3 b7 Nh3 Bd2 Ra5 Nc3 Ra4 Nd5 Na7 Nf3 Nf6 g8Q+ Qg7 Ng5 Ne4 Bc4 Kg2 Ne6 Nf4 Bc5 Nb5 Qa7 Na3 b8Q Bb7 Ne7 Nc3 Rb1 a1Q Rh4 Qg4 Qg7 Rf8 Qbc8 Ba5 Qe1 Rf5 Rb2 Ncb1 Qe8 Rf8 d8N Bc3 Qed7 Rf5 Qf8 Qe2 Qg7+ Ng6 Rd4 Rf1 Qg3+ Kh1 Re4 Nf4 Qb6 Bd4 Ba5 Ng2 Bd5 Bc3 Rb4 Bd4 Rb5 Bc3 Ra2 Rh4 Bc4 Nc2 Ra4 Nca3 Qd1 Bb4 Qcd7 Qd4 Qa7 Qd5 Qd4 Bc3 Qdg4 Qc6 Bcb4 Qa6 Qaf2 Qa8 Bc5 Qb8 Nf4 Qc8 Bf7 Qa8 Nfe6 Qb8 Ndc6 Qh8 Ncd8
BR2r1k1/Q1pKp2N/b1B2q2/1RrQp1B1/2B2q2/1N6/1np1RN1B/2nqb3 b - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 dxc4 h4 f6 e5 fxe5 hxg5 Bb7 Qc2 Ba6 Qd1 Bc8 Ke2 Kf7 Ke3 a5 Ke4 h5 f4 c3 g4 h4 b4 c2 d4 a4 d5 h3 b6 h2 d6 a3 Kd5 a2 g6+ Kg7 f5 Nc6 b7 Bd7 b8Q Ra3 g5 Rh4 b5 Qc8 f6+ Kh8 b6 Nd4 g7+ Kh7 b7 Rhh3 f7 Rh5 Bb5 Nf3 Bc6 Bh3 d7 Re3 d8R Ne1 g6+ Kh6 Qa7 Qf5 b8B Nd3 Nd2 Nb2 Nb3 Bf1 Nh3 Qf6 Nf2 Ba6 Rb1 a1Q Re1 Qa4 Re2 Qaf4 Qd3 h1Q+ Qe4 Q6h4 Ke6 Nf6 g8B Kg7 Qd5 Qd1 Bh7 Nd7 Bd2 Kh6 g7 Rc3 g8B Kg7 Be4 Rc5 Rc8 Rh8 Bg2 Qf3 Bg5 Qhf4 Ba8 Kg6 Bh1 Bh6 f8N+ Kg7 Bf7 Rg8 Nh7 Re8 Qd2 Qc1 Bg6 Qb4 Bf6+ Kg8 Na1 Rf8 Bd3 Rb5 Qb6 Qa5 Ba7 Nd1 Rb8 Qa4 Ne4 Re8 Bh4 Bf4 Bg5 Bg3 Rb3 Rd5 Rb5 Nb2 Nb3 Be1 Bg2 Qd4 Bc4 Qd1 Qb7 Qde3 Bc5 Qf8 Qa7 Qef4 Bg1 Qg7 Bh2 Qgf8 R5b7 Rb5 Nf2 Nc5+ Kd5 Ncd3+ Ke6 Nc1 Bc6 Ra5 Qd5 Rc5 Rb5 Q8f6+ Kd7+
1RrQ4/4Kb1Q/1bQ3N1/4Qpp1/3rp3/Bqp5/QnN1k1R1/bB1nb1RB b - - 0 1 illegal: No proof kernel
n1Q3q1/b4R1B/p1Nn2p1/B1pB1nR1/bp1B3n/R7/N3KQ2/k2r1NrB b - - 0 1 illegal: No proof kernel
1RR5/q1B2p2/NRQp1p1Q/3Rn1b1/1K2prR1/pbnk4/3N2rb/5NQB b - - 0 1 illegal: No proof kernel
3n4/B3ppRq/3r2Qb/2RBN1N1/1pQ3nr/BKppp3/B5R1/1k1B1bN1 b - - 0 1 illegal: No possible last move
2Q3NB/1bqn4/4K1n1/q1rBp1R1/2b1r1N1/k3NB2/Nq1N1R1b/2N1Nr2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 f4 h3 d4+ Kb6 g4 c5 f6 h4 g5 b3 f7 b2 g6 h2 g7 e6 f5 h3 d6 c4 d5 Kc5 f6 Kb4 d7 c3 b6 c2 b7 Qc7+ d6 Ra6 d8N Be7 f8N Ra4 f7 Rh4 Ng6 Rd4 f8N Rd2 Qg4+ Qc4 d7 Rg2 Nf3 Ra6 Nf4 Qa2 Nf7 Ka4 d8N Rg1 Nc6 Rb6 Na5 Bg5 Nd7 Rg2 Nd3+ Rb4 Nc4 Rg3 Nfe1 Qa3 Bg2 Ne7 Rf1 h1B g8B h2 Nbd2 b1Q Bb2 c1Q Nh6 Bf4+ Kf6 Qc3+ N7e5 Ng6 Ne3 Qc7 Bf3 Re4 Nc1 Nd7+ Kf7 Qaa2 b8N Ba6 Nbc6 Bc4 Rf2 Rg1 Qf5 Rg5 N5g4 Rh5 Be5 Qb2 Nb4 Ka3 Bh8 Bg2 Qc5 h1R Qf8 Bg3 Qc8 Bh2 Rb1 Rd5 Ra1 e5 Ke6 Rg1 Bf7 Rh1 Ng8 Rf1 Rb1 Qaa1 Nba2 Rb5+ Kf5 Rc5 Bd5 Qc3 Rb6 Qa5 Rf6 Qb2 Ke6 Ba6 Rf5 Bb7 Bd1 Bf3 Rh5 Be2 Rg5 Bc4 Bf3
1b5r/k2B1R2/2p1r2B/2K1N3/b2QRb1N/r3BBq1/3B3B/1qn1qBRq b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Kd7 e4 a5 Ke2 h5 Kd3 f5 Kc4 f4 d4 g2 g6 h4 e5 h3 b6 g3 e6+ Kd6 b5 c6 g7 f3 b7 Kc7 b8B+ Kb6 e7 a4 e8B f2 d6 a3 d7 h2 d5 a2 d6 Rh6 Ba7+ Kb7 b6 Qc7 d8B Bg4 d7 Nf6 g8B Bd6 Bd2 Nd5 B8g5 Nc3 d8R Ne2 Na3 Re6 Nf3 g1B Bh6 g2 Rd7 Bf4 Kc5 Nc1 Rf7 Bh5 Rb1 a1R Nc4 Ra3 Bd7 Bg4 Bh7 Rh8 Be4 Qe5+ Bd5 Qe1 Rb4 Bf5 Ra4 Bc2 Nce5 Ka8 Rb4 Ba4 Nh4 Kb7 Bf3 Ka8 Ba6 f1Q+ Rd4 Bf2 Rg1 B2g3 Re4 h1Q Bc4 Qd3 Bb5 Qb1 Bf1 Bb5 Qa4 Bh2 Qd4 Ba4 Bb8 Bhg3 Bd6 Bh2 b7+ Ka7 b8B+ Kb7 Bbc7 Ka7 Bca5 Bhg3 Be3 Bh2 Bad2 Qg3 Bc4 Qe1 Rf1 g1Q Bd3 Qg7 Rg1 Qgg3 Bf1 Qg6 Ba6 Bg5 Ng4 Bg3 Bf1 Bh2 Bdf8 Bb8 Bd6 Qg7 Bh2 Bgf4 Ne5 Qg6 B3g2 Qgg3 Bf3
1RB1q3/N1BB1bb1/N1r3q1/1bq5/N1R2KQ1/1kb5/2rBBnpB/6Bq b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Ke7 d4 Kd6 Kd2 h5 Ke3 f5 g6 c5 b6 a5 b7 c4 b8N g2 g7 h4 b5 h3 b6 g3 b7 h2 Kf4 c3 e4 a4 e5+ Ke7 d6+ Ke6 d7 Kd5 e6 c2 e7 a3 e8B a2 Na3 Rh3 Bd2 c1Q Nb5 Rh6 Qg4 Nf6 Be2 Ne4 Na7 Rc6 Na6 Nf2 b8B Qc5 Rc1 a1B Rc4 Bc3 Bd6 Qe7 d8B Be6 g8B Bg7 B8c7 Bf7 Bd7 Rb8 Bh7 Rb2 Bc8 Rc2 Bg6 Bg8 Be8 Bf7 Bed7 Qf8 Nf3 g1Q Ne1 g2 Nd3 Qe8 Nb2 Qb1 Na4 Qbb6 Rb1 h1Q Kg5 f4 Rb2 f3 Bh2 Ne4+ Kf4 f2 Bg1 f1B Bd6 Qbd8 Rb8 Nf2 Bc7 Qdh4 Bh2 Qh7 Bb6 Kd6 d5 Qg6 Bc7+ Ke7 d6+ Kf6 Kg3 Ke5 Kf3+ Kd5 Kf4 Qg8 Be8 Qh8 d7 Qhf8 d8B Qfe7 Bed7 Qe8 Bd1 Be2 Bf6 Bf1 Bd4 Bd3 B4e3 Be2 Re4 Bb5 Bd4 Kc4 Be2+ Kb3 B4e3 Nd1 Beg1 Nf2 Rc4
2B2N1B/B2b2qB/r1Npnb2/8/n2Q1bb1/1kR1q1N1/n2BB3/R1BK1n2 b - - 0 1 legal: proof: f4 g5 fxg5 b5 g6 a5 d4 c5 h4 cxd4 a4 f5 axb5 f4 g4 Ra6 e4 Rf6 g5 Rf5 h5 Bg7 h6 Bxh6 exf5 Bf8 c4 h5 b4 e5 f6 d3 c5 d2+ Ke2 f3+ Kf2 h4 f7+ Ke7 g7 Ke6 b6 Kd5 b5 h3 b7 e4 b6 a4 c6 d6 c7 h2 g6 e3+ Kg3 a3 Ne2 Kc4 Nf4+ e2 Kf2 a2 Ne6 Nf6 g8B Nc6 b8B Bd7 c8B Ne8 b7 Bh6 f8B Qg5 g7 Nb4 Bh7 Nc7 g8N Qg7 Ba7 Bf4 Ne7 Rg8 Qa4 d1N+ Ke1 Nc3 Bae3 f2+ Kd2 Rh8 b8B Rg8 Rg1 h1B Nc6 Bf3 Ba7 Bg4 Rg3 Rh8 Qd1 Na4 Nc3 Rg8 Ne4 Rh8 Bh3 f1N+ Ke1 Rg8 Qd4+ Kb3 Bg2 Rh8 Bf3 Rg8 Be7 Re8 Nf8 Ne6 Bed2 Rd8 Ba6 Re8 Bf6 Ra8 Bc5 Ra7 Bc8 Ra6 Ba7 Qh6 Bh8 Qg7 Kf2 e1Q+ Kg1 Qd1 Kf2 Qc2 Ke2 Qd3+ Kd1 Qe3 Be2 Qf6 Bb2 Qg7 Rb1 a1B Bbc1+ Bb2 Ra1 Na2 Rh3 Bc3 Ng3 Bb2 Qc5 Bf6 Qd4 Qg6 Rh5 Qh6 Rc5 Qg7 Rc3+
2nqkBR1/4Rp2/b2rRq2/2n4R/2n2Nn1/1BR1R1B1/n1npKRN1/6Q1 b - - 0 1 illegal: No possible last move, all moves rejected
4B3/Q1pk2B1/bB2p1R1/1Rn2pK1/B2B2B1/4nB2/bpN1R1b1/Nq2r2b b - - 0 1 legal: proof: e4 d5 h4 Kd7 c4 g5 cxd5 gxh4 b4 a5 d6 Kc6 d7 axb4 d4 Kd6 f4 Ke6 d5+ Kf6 d6 Ra5 f5 Rd5 exd5 b5 Qh5 e6 Qd1 Ke5 f6 Be7 fxe7 Kf6 Kf2 h5 Ke3 b3 Kf4 b4 e8B h3 a4 b2 g4 b3 a5 h2 a6 h4 a7 h3 a8B Na6 g5+ Kg6 Ra5 Nc5 Nf3 Rh6 Rg1 h1B Be3 h2 Nbd2 b1B Ne1 b2 Nb3 Ba2 Nc2 Ne4 Qd4 Nc5 Rb5 Ne7 Be2 Bb7 Bg4 Na4 Nba1 Nc3 Qa7 Rh8 Bb6 Qc8 d8R Bc4 d7 Rh4 d6 Ba6 Bf3 Kg7 g6 Kf6 g7 Ba2 g8B Qa8 Rg2 Nf5 Re2 Ne4 Rb8 Nc5 d8B+ Ne7 d7 Bg2 Rc8 h1B Rb8 Kg7 Kg5 f5 Bgf7 Nd5 Bf6+ Kf8 d8B Ne3 Bd4 Qe4 B8f6 Rh2 Bfe5 Ke7 Bg7 Qd3 Ra8 Qd1 Bec6 Qb1 Rh8 Rh3 Rh6 Kd8 Rg6 Rh6 Bcd5 Kd7 Bb3 Rh3 Ba4 Rg3 Ba8 Rf3 Bb7 Rf1 Bbf3 Re1 Be8+
1n1BNR1R/R1n1R2n/1r4n1/K1n2BN1/2R2b1q/1bR2bn1/Q7/k1N1bR1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 a5 Kd2 h5 Kc3 c5 g4 f3 d6 c4 b6 f2 d7 h3 d5 Ke5 g5 f5 b7 h4 g6 a4 g7 a3 d6 h2 b5 h3 Kb4 f4 b6 c3 Qd3 c2 Nd2 a2 Rb1 a1N Be2 f1N Bh5 f3 Qc4 f2 Bg4 Qh4 d8R Ne7 g8R Ng6 Ne2 Be6 Re8 Nb3 Ra1 Ra6 Bf5 Ng3 Rf1 h1N Re7 h2 d7 Nc5 d8R Nh5 Rc8 Nf6 Qa2 Ng3 Rcc7 Bg7 Rgc8 h1B Kb5 Nh7 Nf3+ Kf6 Bh6 c1B Ng5 Bf4 Nc1 Ke5 Rf8 Kd4 e5 Bg8 e6 Kc3 Rcc8 Bd4 Bg7 Bde5 Bf6 Bf3 Rcc7 Bd2 Rcc8 Be1 Rcc7 Nc6 b8R Bf7 Rbc8 Nb8 b7 Rb6+ Ka5 Bg8 Rg1 f1N Rc6 Ne3 Rf1 Nd5 R8c7 Nd7 b8R Bf7 Ra7 Nc7 Rbe8 Nb8 Rb1 Rg8 Rb4 Rg7 Rd4 Bf4 Rh8 Bg8 Rf8 Rf7 Ree8 Rg7 Bd8 Bf7 e7 Bb3 Qa4 Rg8 Rc4+ Kb2+ Rc3 Ncd7 Rc4 Nc5 Rf7 Rg7 Ref8 Rg8 e8N Rg7 Qd7 Ka1 Re7 Rf7 Qd5 Rff6 Rb4 Rfd6 Qe6 Rd1 Rbc4 Ba4 Rd4 Bed2 Rf2 Rh1 Rf1 Be1 Qe2 Bc2 Rc4 Bb3 Qa2+
2NnRq2/6qN/B6Q/3qq1N1/1rr2k1N/B1q3nN/KpNR1bn1/NR1b4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 Kd6 d4 h5 Kd2 e5 Kc2 b5 Kb2 c5 g4 e4 g5 e3 f6 h3 a5 h4 a6 c4 a7 b3 g6 b4 g7 h2 f5 e2 f7 e1N f6 h3 Na3 Qa5 Nc2 Nc6 Ra2 Bg4 Na1 Rh4 Qd2 Nh6 g8N Nf5 Qh6 Nd8 Ne7 Rc8 a8R c3+ Kb1 b2 Ba6 Bg7 f8N Bd1 Nfg6 Rc4 f7 Ng3 f8N Ng2 Nh7 Bf6 Rb8 Bg5 Rc8 Be3 Rb8 Bf2 Nc8+ Kd7 d6 Ke6 d5+ Kf5 d7 Rhg4 d6 Qe5 Ra5 c2+ Ka2 Ke4 Rd5 b3+ Ka3 b1Q Rd2 Rf4 Nh4 Ke3 Bb2 c1Q Ra8 Qbf5 Rb8 Nc6 d8N Qcc3 Ne6 Nd8 Neg5 Qf8 Ra8 Rb4 d7 Rfc4 Rb8 Kf4 Bc1 Ne6 d8N Qeg7 Nc6 Nd8 Nd4 b2+ Ka2 Qe5 Ndc2 Qfg7 Rb7 Qf8 Re7 Qeg7 Re8 Qge5 N1f3 Qfg7 Rf1 h1Q Ng1 h2 N5f3+ Kg4 Nd6 Bc5 Nfd4 Nf4 N6b5 Qhf3 Nd6 h1Q Ne6 Rb7 Nc8 Be2 Neg5 Qf2 Rfd1 Qhd5 Rf1 Ng2 Rd3 Qff8 Be3 Bb6 Rb1 Bd1 Bc5 Kf4 Ba3 Bf2 Rd2 Rbb4 N1h3+
b4Rk1/rpR1rRN1/NB5K/2RR2R1/n3R3/1bn1Q2B/nN2bqnb/7q b - - 0 1 illegal: Other
1RN1k2B/4q2r/rbNQnnK1/2R5/b2R2Bp/2b2np1/3R3R/Nn1R1Rr1 b - - 0 1 illegal: No proof kernel
4r1n1/2B4N/1N1r1NBn/p2p1q1q/Nb2r2B/k2RQ3/b3rRNN/4rN1K b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 Kb4 f6 e5 c5 a5 f5 h5 c6 d3 c7 d2 b6 e4 b7 e3 f7 e2 g5 e1Q f6 Qe3 g6 Bh6 f8N Bg4 c8N Qb3 g7 Qc2 f7 Nd7 b8N Be3 Rh3 Nb6 Ng6 Bd7 f8N Be6 Nce7 Bd7 Nf4 Nc8 Ra2 Nh6 g8N Qe8 Qe2 d1R Nc3 Rd2 Nf5 Ne7 Nf3 Ba4 Ng3 Bc5 Kh1 Qf5 Qe3 Bb3 Bd3 Ra6 Nf1 Rd6 N3h2 Re2 Nf6 Neg8 Nbd7 Qee5 Rf3 h3 Nb6 h4 Ng2 Qh5 Bb1 Qef5 N8h7 Bc4 Ra3 Bb3 Rf2 Ba2 Ra4+ Kb3 Rd4 Ba3 Rd3 Bb4 Nf3 h2 Bd2 Bc5 Be1 Kb4 b3 Ka3 Bc2 Bb4 Bb1 Ne7 Bc2 Re8 Bb1 Bc5 b4 Neg8 b5 Bb4 Nc8 Ne7 b6 Neg8 b7 Re4 b8B Re8 Nb6 Re4 Nf4 Re8 Kg2 h1R Bc7 Rg1+ Kh2 Rg4 Ng2 h3 Kh1 h2 Rd4 Qf4 Bg6 Qff5 Rd2 Rge4 Rd3 Rb2 Rfd2 Rc2 Bh4 Rb2 Rf2 Rd2 Qc5 Rde2 Qe3 Qfg4 Nge1 Qe6 Kg2 h1R N1d2 Rg1+ Kh2 Rf1 Ng2 Rd1 Nf1 Ra1 Kh1 Rae1 Nh2 Qef5 Nca4+
RBn1qR2/rbk1B1q1/1RNR1R2/2r3R1/6R1/QKnrb3/3N1pnp/3r3B b - - 0 1 illegal: No possible last move
1rnRR1Bn/6r1/5NkB/q5rb/4p2B/p1Q4R/4B2N/qBbnnKBB b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 c4 Kf7 g4 e5 f4 h5 b4 d5 c5 a5 g6+ Kg7 f5 a4 g5 e3 b6 h4 c6 d3 c7 d4 b5 h3 b7 e2 b6 h2 Be3 a3 Nd2 Ra4 Qc2 Bb4 f6+ Kf8 g7+ Kf7 g6+ Ke8 Qc3 Ne7 g8B Bg4 c8B Bh5 g7 Ng6 Bh7 Kf7 Ngf3 Nc6 b8B Ra5 b7 Na7 Ne4 d2+ Kf2 e1N Be2 d1N+ Kf1 d3 Bg1 d2 g8B+ Ke8 Bh3 Nc8 f7+ Kf8 Bf5 Kg7 Nf6 Rc5 f8R Qa5 Bb1 Rd5 Re8 e4 Bf4 Re5 b8B Rg5 Bb3 Rf8 Bhg8 Nh8 Bg3 Bd6 Bh4 Bf4 Ra2 Be3 Bf4 Kg6 Bbe6 Rf7 Bg4 Rg7 Rb2 Nf2 Rb6 d1Q Rd6 Bc1 Rdd8 Qd4 Bh3 Nd1 Bg2 Rg3 Bh6 Rg5 Bgf2 Qde5 Rg1 Qd4 Bh1 Qde5 Rg3 Qd4 Bg2 h1R+ Bg1 Rh2 Rh3 Rh1 Qe3 Qa1 Qc3 Rh2 Bh1 Rhg2 Bb5 Rb2 Be2 Rb8 Nh2
R1R1Q1R1/qq3b1R/4Nk1R/1r2pn1R/q2NR2b/p2bB3/3n2B1/rNKb4 b - - 0 1 illegal: No possible last move
2n3R1/B2kr1NB/NR2N1p1/1nN3q1/K3pnQ1/3BbbN1/5N2/bnN1q2r b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 h4 d5 f4 e5 b4 e4 c4 g3 Kc2 d3+ Kb3 g2 b6 d4 c5 d2 b7 d3 c6 Ra6 b5 Qf6 c7 Rc6 b6 Ke7 h5 Qd4 h6 Qc5 h7 Qd6 f6+ Ke6 f7 Qd5+ Ka4 Bd7 c8B Kd6 f5 Ke7 f6+ Kd8 Ne2 g1B Rh6 Bd4 Ng3 Bfc5 f8N Bg4 f7 Qg5 Bf5 Ne7 Nc3 Nd7 b8N Nf6 b7 Re6 Na2 Nfd5 Nbd7 Bf3 b8N Nf4 Na6 Nc8 Be2 Re5 Rb6 Re7 Qg1 d1N Be3 d2 Nc1 Bc3 Bd3 B5d4 Bf2 Be3 Ndc5 Be5 Rab1 Bf6 Rb8 Ba1 R1b6 Nc3+ Kb3 Nb5 Ka4 Rg8 h8N d1N Nhg6 Rh8 Ne5 Rh1 Bh7 g6 Ng4 Ndc3+ Kb3 Nb1 Ka4 Rc7 Nfe6+ Ke7 f8N Ke8 Ra8 Re7 Ng7+ Kd8 Kb3 a4+ Kb4 a3 Ka4 a2 Qg2 Bd2 Bd4 Be3 Nf2 Rf7 Nfe6+ Ke7 Nb7 Kd7 Qh3 Re7 Qg4 Nca7 Rg8 Nc8 Bc5 Bf6 Bb4 a1Q+ Ba3 Qc3 Bd6 Qd2 Bb8 Ba1 Ba7 Qe1 Nbc5+
4n1qr/k1n2RR1/1Rp1R1pn/1B3RRr/3n2NN/3bqBB1/KbR4Q/5b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 f5 Kc2 a5 Kb3 c6 h4 Kc7 e4 Kb7 b6 a4+ Ka2 a3 b4 f3 e5 g3 b5 g2 d6 f2 d7 f4 d5 f3 e6 Ne7 d6 Rh5 Rh2 Rf5 h5 Ng8 h6 Qg5 d8R Ne7 d7 Ng8 e7 Nf6 e8B Qe3 h7 Bc5 h8R Qe7 Nc3 Qf8 R8h6 Ng4 Qd6 Nf6 Nd1 Rh5 Bf4 Ra7 Ne3 Qe7 Bg3 Ra8 Ng4 Qe3 Rh7 Bb4 Re1 Na6 Bg6 Rb8 Rg8 Nc7 d8R Nfe8 Rd7 Bc3 Be4 Bb2 Rf7 Bf5 Bfd3 Ka8 b7+ Ka7 Rgf8 g6 Rhg7 f1N Be2 f2 Nf3 g1Q Nh4 Qg2 B4f3 Bd3 Rf5 Rd8 b8R Qh1 Rg2 Nh2 R8f7 f1B Rb6 Rc8 Rc1 Ra8 Rc2 Rc8 Kb3 a2 Qf4 a1N+ Ka2 Nb3 Rg1 Bh3 Re1 Nd4 Bf1 Qe7 Re6 Qg1 Qd2 Qf8 Qf2 Qg8 B1e2 Nf1 Qh2 Ne3 Rg5 Bf1 Rff5 Ka8 Rb7 Rb8 b6 Rd8 Ra7+ Kb8 b7 Rc8 Rff7 Nef5 Ra5 Nh6 Raf5 Ka7 b8R Qe3 Rb6 Bb5 Ng2 Qf8 Rf4 Nf6 Bd5 Ba6 Bef3 Bad3 Rff5 Qh8 Bb3 Qh7 Bbd5 Rh8 Nh4 Ne8 Bc4 Qg8 Bb5
2Bn3N/b3p2N/1B1k2b1/2R1p1nr/1BK1B2n/3n3r/rR2BBqq/1Q2BN2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f6 d4 cxd4 e5 fxe5 axb5 Qb6 Nf3 Qc7 Ng1 Qd8 Ke2 h5 Kd3 a5 f4 d5 b4 Kd7 g4 a4 c4 h4 c5 h3 b6 h2 f5 a3 f6 a2 f7 Ba6+ b5 Ke6 g6 Rh4 g5 Qd7 c6 Rh6 c7 Rh3+ Be3 Bb7 c8B Rh4 g7 Bc6 g6 Rh3 b7 Kd6 b6 Nf6 g8N Ne8 g7 Nf6 Nd2 Qg4 Ne2 Qg2 Rc1 a1Q Nf4 Qb2 Ng6 Nh7 Nf6 Be8 g8B Nc6 Nh8 Ng5 Be2 Bh6 f8B Ra2 Nh7 Nd8 Nf1 Bf7 Rg1 h1R Rc5 R1h2 Qb1 Bg6+ Bf5 Rh5 Be6 R2h3 Bc8 Qh2 Bd1 Qbg2 Be4 Nf3 Bf2 Be3 Bh6 Nh4 Bg3 Bf2 Bd2 Be3 Bb4 Bf2 Qb2 Be3 Be2 Bf2 Kc2 d3+ Kc3 d2 Qb1 d4+ Kc4 d1N Be1 Be3 Bgf2 d3 Rh1 Nc3 Rg1 Nd5 b8B+ Nc7 b7 d2 Ba7 d1N Bb6 Nce6 Rh1 Ng5 Rg1 Qgh1 Rg3 Bd4 Rb3 Q1g2 Rb2 Be3 Rc7 Bc5 b8B Bd4 B8a7 Be3 Rc5 Bd4 Bg3 Nf2 Bb4 Nd3 Bge1 Qgg1 B6a5 Ngf7 Rc7+ Bc5 Ba3 Qgg3 Bf2 Qhg2 Bae1 Ng5 Bab4 Q3h2 Ba5 Bb6 Rc5 Bc7 B7b6 Bb8 Bad2 Ba7 Bb4
1rq1R1qk/N1p5/NQKB2bR/B1p1r3/2B3rB/1Bn1B3/b6n/1bbR2B1 b - - 0 1 illegal: No possible last move, all moves rejected
n1qB3r/B1nbRbB1/2p2bB1/Q4b1k/B1NB4/1r3N1p/b3b2B/1R3R1K b - - 0 1 illegal: No proof kernel
B7/2k3R1/4B1Bb/b2pq2b/r1Nr2nr/R1Bp2BN/pBn3B1/nNQK4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 e4 f5 h4 d5 c4 Kd7 b4 g5 h5 a5 b6 d3 b5 f4 b7 g3 h6 g4 h7 a4 e6+ Kd6 c5+ Kc7 c6 f3 e5 a3 e7 g2 e8B g3 e6 Qf6 e7 Ra7 Bb2 Bg4 Bg6 Nd7 b8N Ra4 e8B Nh6 Nh3 g1B Bg2 Bb6 Qc1 Qe5+ Kd1 Bh5 Rg1 Nc5 Nd7 Ba5 Nb6 Ng4 Nc4 f2 Bc3 f1N b6+ Kc8 b7+ Kc7 Bef7 Bh6 Be6 Nb3 Ra2 Na1 Bb2 Rf8 h8B Rf4 Bc3 Rd4 b8B+ Kd8 Bg8 Kc8 c7 Kb7 Be6 Nfe3+ Kd2 Nec2+ Kd1 Kc6 Bb2 Kb7 c8B+ Kc6 Ba7 Kc7 Bb7 Nb4 Ba8 Nbc2 Bf3 g2 Bc5 Rf4 Bf2 Re4 Bg3 Rd4 Re1 g1R Bg2 Rf1 Bc3 Rf8 Rf1 Rd8 Rf7+ Rd7 Rg7 Rf7 Rb2 a2 Rb3 Rd7 Ra3 Re7 Rg8 Rh7 Rg7+ Kb8 Bf4 Re4 Bc6 Qc7 Nd6 Bg5 Bb2 Rh6 Bgf7 Bg6 Bg3 Rh4 Nc4 Bh5 Rh7 Bh6 Bhc3 Qe5 Rg7 Kc7 Ba8 Rd4 Bg6+
n1nB2R1/1Nb1R1p1/1q1Bn2B/B1r2p1B/1rQ3p1/2KN4/N1b1rk2/1B4bB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 b4 Kd7 h4 Ke6 d4 Kd5 Kd2 Ke4 h5 f5 h6 c5 e6 a5 e7 a4 e8B a3 d5 a2 h7 Nd7 b6 Ra4 d6 Qe7 b5 Qf6 b7 Qd8 b8B Qg5+ Kc3 Qd8 b6 Nh6 b7 Ra7 Bc7 Ng8 b8B Bb7 Qa4 Ne7 Nh3 Nb6 d7 Nec8 Bh6 Bd6 Bh5 Na8 Nf4 Ke3 Ba5 Kf2 e4 Qb6 d8B Re8 h8N Bc7 e5 Be4 e6 Bc2 Nf7 Rb7 Bd3 Re7 Re1 Re8 Kd2 Re7 Nd6 c3+ Kc1 Re8 e7 c4 Re6 Qa7 Qb3 Rb4 Nb7 Qb6 Be4 Bd3 Re5 c2 Kb2 c1B+ Kc3 Bc2 Bh1 Be3 Nd3+ Ke2 Bf7 Kf1 Bfd5 Bg1 Bde4 Ke2 Ne1 Kf2 Bd3 Rg8 e8B Rh8 Bh5 Re8 Re4 Re5 Qa4 Rc5 Re7 Re5 Nd2 Re2 Rd1 a1N Nb1 Nb3 Rc1 Bg3 Bd6 Nc5 Qb3 Bf4 Bde4 Ne6 Nd3+ Kg3 Kb2 Be5+ Nc3 Bf4 Na2 c3+ Ka1 Be5 Qc4 Bf4 Re1 Be5 Re8 Bf4 Rg8 Be5 Bc5 Bc7 Bd6+ Nf4 Nb2 Bd3 Na4 c2 Qe6 Kf2 Nac5 Re3 Qb3 c1R+ Kb2 Bb1 Bd3 Re5 Re4 Re1 Kc3 Re2 Qc4 Rd5 Re7 Ne6 Nd7 Rc5 Ne5 Bc2 Bde4 Bb3 Bb1 Bc2 Nd3+
3B3r/R1pNb1p1/1nB5/1K3n2/2BBb1QB/1p4rb/1R1q1kn1/BNB1b1N1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 h4 Kf4 d4+ Ke4 a4 e5 f4 g3 a5 g2 a6 b6 d6 b3 h5 b2 a7 Nf6 h6 Be7 d5 Nh7 f6 Qd7 f7 Bh4 f8B Qe6 d7 Ng5 d8B Be1 h7 Qd6 f5 Nf3 f6 Nd7 f7 Nh4 Bfe7 Nf5 f8B Rb8 a8B b5+ Kb3 b4 Kc4 b3 Rh2 Rb5 Ra7 Qh6 Bb4 Qd2 d6+ Ke3 Bc3 e4 Bc6 Kf2 Qg4 e3 Bd4 Ra5 Bfe7 Ra1 Bef6 Nb6+ Kb5 Bd7 Nc3 b1B Bc4 Be4 Nb1 Ra2 Ba1 e2 Bde7 Bc8 d7 Rc2 d8B Rc3 Be5 Rg3 Bh4 Nh6 Qg6 Bh3 Qg4 Nf5 Bed4+ Kf1 Nf3 g1B Rg2 Be3 Ng1 Bg5 Rh2 Be7 Rg2 Re8 h8N Rf8 Ng6 Rh8 Nf4 Bf2 Nd3 e1N Rh2 Ng2 Ne5+ Ke1 Bg8 Kf1 Nd7 Be1 Be6 Nge3 Re2 Ng2 Bg8 Qf4 Rb2 Qd2 Be5 Kf2 Bc4 Rh5 Bef6 Rh8 Bd4+
1qNk2B1/R1r1p3/1Bp3R1/3nN1Rb/4Q3/3NN1pN/nrr2bN1/q2rNK2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 g5 b4 a5 h4 a4 d4 c6 f5 e3 d6 g3 d7+ Kf7 f6 a3 d5 e2 b6 a2 d6 g4 b7 g2 b5 g3 h5 Rh6 b6 Rg6 h6 Rg4 h7 Rg7 h8N+ Ke6 f7 Nh6 Qd5+ Kf6 Rh5 Ng8 Nc3 Qc7 d8R Na6 b8N Bb7 d7 Rg5 Nh3 g1R Be3 Qf4 Nd1 Qh4 Ng6 Qe4 Ngf4 Qb1 Nd3 Rf5 Rg5 Nh6 Qe4 Bc8 b7 Bg7 f8N Ng4 Nh7+ Kf7 Bb6 Nb4 Rg8 Bd4 R8g6 Rf2 d8N+ Ke8 Ne6 Ne3 Nd7 Rgg2 b8N Ned5 N7e5 Ra7 Nbd7 Rc7 Nef4 Qb3 Ne3 Kd8 Nc1 Rh2 Nfg2 Ba6 Ncd3 Bc8 Ndf6 Bg4 Ne8 Bh5 Nd6 Qb2 Nc8 Qb3 Rc1 a1Q Rb1 Na2 Rc1 Qab2 Rc4 Q3a3 Ra4 Qd6 Ra7 Qa1+ Kd2 e1R+ Be2 Rf8 Bd1 Rf3 Bb3 Rd1+ Ke2 Rf5+ Nf3 Qb4 Nf8 Rf4 Nd7 Rh4 Bc5 Qb8 Bb6 Rg4 N7e5 Rf4 Nc2 Bf2 Nce3 Rg4 Nfe1 Rh4+ Qf3 Rc4 Kf1 Rc2 Qe4 Bg1 Ngf4 Rhd2 Bc4 Bf2 Nfg2 Rb2 Bb3 Rdc2 Bc4 Ndc3 Be6 Nd5 Bg8
2r4r/3R4/pKn4p/R2rBBB1/1n1B1N1p/Q5B1/bNBb1pq1/Bq4kR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 Kd6 g4 Kc5 d4+ Kd6 b4 f5 b6 c5 b5 c4 e5+ Ke7 d6+ Ke6 b7 Kd5 e6 Ke4 d7 a6 b6 f3 d5 c3 e7 c2 e8R+ Qe7 d8B h6 g5 f4 g6 Rh7 d6 Bg7 d7 Rh8 Nh3 Nf6 Nc3+ Ke5 Be3 c1R Qd6+ Kf5 Bd4 Kg4 Qa3 Bf8 g7 Rg8 Na4 Qd6 Bd3 Qd5 Nb2 Qg5 Re7 Rh8 g8B Rd1 Bc2 Nd5 Bgh7 Nc6 b8B Ndb4 Bbe5 Bb7 Bdc7 Rc8 d8B Ba8 b7 Bg7 Bc5 Rd5 b8B Bf6 Bed4 Qg6 Rf7 Bg5 Bce5 Bb7 Rd7 Qf5 Kf1 f2 Ke2 f1Q+ Kd2 f3+ Kc3 f2 Nf4 Qg1 Kc4 Qg2 Bf8 Qfe4 Bfg7 Qe1 Bhd3 Kf3 Ra2 Qb1 Bdf6 Rd6 Kc5 Rd5+ Kb6 Kg3 Ne2+ Kf3 Bf5+ Be3 Nf4 Ba8 Nfd3 Bd2 Bg5 Bb7 Bg3 Ke2 Bbe5 Ba8 Rh2 Kf1 Nf4 Bb7 Qb3 Kg1 Ra5 Rc7 Qa3 Bc8 Re7 Be6 Rd7 Rcc8 Rh3 Rd6 Rh2 Ba2 B7f6 Rd5 Rh3 Kf1 Rh1+ Qg1 Nd1 Rhf8 Ba1 Rfe8 Bed4 Rh8 Rh3 Qh1 Bfe5 Kg1 Nb2 Qg2 Rh1+
k1B1n2r/B1qp3p/rBRb4/N3q3/2b2NB1/1Bn1B1p1/1Rp1BQ1q/5K1R b - - 0 1 illegal: No proof kernel
2q2R1n/B2p1rp1/2Q3p1/Bk2KpB1/1qN1NB2/qN2BbR1/4BBrb/7n b - - 0 1 illegal: No proof kernel
4R1rB/NBkb2Q1/RnB3nb/7R/1qn2p2/1r6/K2bBNrQ/3N1Q2 b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 g4 h5 gxh5 c5 bxc5 b4 a3 a6 axb4 a5 c6 axb4 d4 g5 Kd2 f5 Kc2 f3 Kb2 b3 h4 g4 e4 f2 h6 f4 d6 g3 h5 g2 e5 Ne7 h7 Rg8 h8Q Ra4 c7 Kd7 d5 Ra5 h6 Ra4 h7 Ba6 c8B+ Ke8 e6 Rg6 Bb7 Rg7 Rh5 Rb4 Nh3 g1B Nc3 Bd3 Be2 f1R Nf2 Bf5 Ra6 Qa5 d7+ Kd8 Be3 Ng6 e7+ Kc7 d8N Qb6 e8B Bd7 Bd4 Rg8 Nc6 Bh6 Na7 Qd6 Ka1 b2+ Ka2 b1N Qg7 Rb3 h8Q Na3 Qe1 Nc4 Ncd1 Qb4 d6+ Kd8 Nh1 Be3 Nhf2 Rh1 Qf1 Rg1 Bc3 Bd2 Be5 Bc6 d7 Rg2 Bf6+ Kc7 d8R+ Nd7 Rb8 Qe7 Rd8 Ndb6 Bd7 Bd5 Re8 Be6 Bdc6 Bd7 Rb5 Bg5 Qh2 Bh6 Rh5 Qf8 Qh7 Qd6 Bh8 Qb4 Qg7
q2B1QRq/N2KnN2/rr2Qk2/bN3nRB/qq2q1Q1/2B2b2/3b4/R4R2 b - - 0 1 illegal: No possible last move
2N2r2/1Nnq1B2/R5b1/1nR1B1b1/1qq1nNQ1/Q1Bb1K2/2k4R/Q4nNr b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 d4 Kf6 g4 c5 f4 h5 b6 e5 b7 e4 d6 c4 d7 e3 d5 c3 d6 h3 Ba3 c2 Kf3 c1Q Nc3 b3 Bb4 e2 Ra3 e1Q Na4 b2 Nb6 b1N Ra6 h2 Bc4 h4 Bf7 h3 Bd2 Qdc7 d8N Qd7 Ne6 Qc4 Bb4 Nc3 Qa1 Be7 Ba5 Nc6 b8B Na7 Bb4 Nb5 Ba5 Qd8 d7 Nc7 Bb4 Qe8 d8N Qd7 Nb7 Qed2 Ba5 Q2d4 Bb4 N3b5 Bc3 Rh6 Ne2 Qb4 Rc1 h1N Ng1 h2 Rc2 Bd8 g5+ Ke7 g6 Kf6 g7 Ng3 Rg2 Nf1 Rg5 h1B+ Rg2 Ne7 g8Q Ned5 Qg4 Rh7 Nd6 Bb7 Nbc8 Bc6 Nb7 Rh8 Ke2 Rh5 Rf2 Be4 Rh2 Bd3+ Kf3 Be7 Nf8 Rh8 Ng6 Qc4 Rha2 Rh1 Rh2 Ne6 Bc7 Nc5 Bb8 Ne4 Bc7 Kg7 Bb8 Bh4 f6+ Kh6 f5 Ndc7 Nf4 Qb4 Be8 Qdc4 f7 Kh7 f8R Kh6 Nfh3 Bg5 f6 Bd5 Bh5 Bf7 Nf4 Bg6 f7 Kh7 Re8 Kh6 Re5 Kg7 Nb6 Kf6 f8Q+ Qcf7 Qc5 Qfc4 Ba7 Rf8 Bb8 Qa4 Qca3 Qab4 Rd5+ Qd4 Rd6+ Ke5 Nc8 Qc4 Rdc6 Qb4 Be1 Qdc3 Rc5+ Kd4 Rb2 Qcc4 Bd2 Bh7 Bf7 Bf5 Be1 Bg6 Rh2+ Qcc3 Ncd6 Na8 Rb2 Qc2 Nc8 Qcc4 Bd6 Nac7 Rh2+ Nbc3 Kg2 Ke3 Be5 N3b5 Bh4 Kd2 Be1+ Kc2 Kf3+ Nf2 Bd2 Ne4 Bdc3+
QRn1nK2/1Q2QQBq/1N1N4/1B2r1q1/3b1R2/3n1q2/1k1nB1R1/1nrNr3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kd6 Kd2 f5 Ke3 h5 Kf4 c5 e4 a5 e5+ Ke7 Kg5 a4 Kg6 a3 d6+ Ke6 b6 Kd5 Kf7 c4 d7 a2 b7 h4 b5 f4 g5 c3 e6 h3 g6 f3 e7 f2 e8N h2 b6 c2 g7 Nf6 g8B Rh5 Nh3 g1Q Na3 g2 Bh6 c1N Nd6 Re5 Bb5 f1N Nf2 Ne8 Qh5 Qg5 d8Q Nd3 Bg7 Nd2 Nac4 Nd7 b8R Nb1 b7 Nb6 Qe7 Nc8 Nd1 Q1e3 Rf1 g1N Rf4 h1Q Bh7 Qf2 Kg8 Ra5 Qhf7+ Re6 Bf5 Nf3 Bg4 Nfd2 Be2 Qfg2 Na3 Qf3 Nac4 Nc3 Rc1 a1R Rc2 Rb1 Ba6 Rc1 Nb6+ Kc6 d5+ Kc5 Rb2 Ncb1 Bb5 Ra1 Ra2 Re5 Ne4+ Kd4 d6 Qhg2 Ndc3 Re1 Bf1 Qh4 Qc7 Qff2 Rba8 Na3 b8Q Rac1 d7 Bc5 Nd6+ Ne4 Qcb7 Qh7+ Kf8 Qg5 d8Q Nb1 Qde7 Qe2 Nd1 Qf3 Nd5 Bb6 Rg2 Ba7 Be2 Bc5 Rf5 Ned2 Q8a7 Bb6 Rb8 Bc5 Qaa8 Ba7 Nb2 Bc5 Nb6 Kc3 Rf4 Bd4 Nd1+ Kc2 Ne3+ Kb2 Nd1+
BQrb2N1/1rqq4/K2Q1Q2/BN2Rb1R/2r5/3rr2n/2RQ3B/r2q1kN1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Ke7 d4 Kd6 Kd2 h5 Kd3 f5 Kc4 a5 e4 c5 b6 h4 Kb5 g2 g6 c4 g7 f4 b7 c3 b8B+ Qc7 Qf3 c2 Ba3 c1R Nh3 g1R Qg2 f3 Bb2 g3 Ng5 a4 Qh2 a3 Bc3 f2 Nh3 a2 Na3 Nf6 g8N Nh7 Bg2 Rge1 Ng1 f1R Bd2 Rc4 Rc1 a1R Rc2 h3 e5+ Kd7 e6+ Kd6 e7 Rf3 e8R Ra7 Re2 Rb7+ Ka6 Be7 b5 Bf5 b6 Bd8 Re5 Ng5 Ba5 Rd3 Be4 Ree3 Qd2 g2 Nb5+ Kd7 d6 h2 d5 Nh3 Ne2 g1Q Bg2 Qf2 Ng1 Qh4 Be4 Qe7 Bg2 Ke8 d7+ Kf7 d6 Kg6 Bd5 Kg5 Bc6 Qf7 Bg2 Bf6 d8Q Kf4 d7 Kg3 Qe7 Qe8 d8Q Qed7 Qd6 Bg5 Q8f8 Be7 Qff6 Bd8 Ne2+ Kf2 Bd5 Qc5 Ng1+ Kf1 Bc7 Rb8 Ba8 Rb7 Bb8 Qcc7 Ba7 Rb8 b7 Rc8 b8Q Rhh4 Bc6 Rb4 Ba8 Rhc4 Nc3 Rb7 Nb5 Ree4 Bf2 Ree3 Bg3 Nf2 Ne2+ Kg2 Rb1 h1Q Rf1 Qh5 Rh1 Qg4 Rh8 Kf1 Bh2 Nh3 Ng1 Qd1 Rh5
5b2/1R2B2K/nQrp4/B5RB/1rkr2Rr/n1Q1BN2/1r1q1n2/1Qb2N1N b - - 0 1 illegal: No possible last move, all moves rejected
2kb2nB/p2Q4/1r3bR1/N3qnRR/3n2b1/1R5B/1Q4Nr/1BKQ1nrN b - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 c4 f5 exf5 g5 cxd5 gxh4 a4 cxb4 axb5 Qd6 Ke2 Qb6 Ke1 Qd8 f4 Kd7 d4 h5 Kd2 e5 g4 h3 d6 h4 b6 e4 g5 h2 f6 h3 b7 b3 g6 b2 f7 Bh6 f8R Bg5 d5 Qe8 g7 Rh7 Rf6 Nh6 g8B Qg6 Na3 b1R Nc2 Rh8 Bh7 Rg8 Ne1 Qh5 Ng2 Qg4 Ra3 Rf8 Rg6 Nc6 b8Q Rf5 Ne2 Nd4 Bb2 Qh5 Rb3 Rf6 Ng3 Ng8 Bc3 Kd8 d7 Rb6 Rg1 Rc1 Nh1 Bf6 f5 Rb1 Ba1 Rb2+ Kc1 e3 Qe5 e2 Rg5 e1B Qee2 Bh8 f6 Bh4 f7 Bf6 f8R+ Qe8 Rf7 Qe5 Bb1 Kc7 d8N+ Bd7 d6+ Kc8 Qdd3 Bg4 Nc6 Bd8 Rg6 Bhf6 Rh7 Ra2 Qb2 Rab8 Nf2 h1N Na5 h2 Rh5 Ng3 Qd1 h1N Rgg5 Ngf5 d7+ Kc7 Rg6 Nhg3 Nh1 Rc8 Nf4 Rcb8 Bh3 Nf1 Rgg3 Be2 R3g5 Bg4 Qa3 Rh2 Ng2 Re6 Qb2 Rbb6 Qd3 Re7 Qd1 Rg7 Nc6 Bde7 d8Q+ Kb7 Qe8 Bd8 Na5+ Kc8 Qd7+ Kb8 Qde2 Qc7+ Qc3 Be5 Rc6 Nc2 Ne1 Bf3 Rg1 Rg3 Qcd2 Bg7 Bf6 Qe5 Qdd1 Ncd4 Qb2 Bh8 Bg7 Be2 Rg6 Rg4 Bf8 Bhf6 Bg7 Bf3 Rg2 Rg5 Bh8 Rg4 Rf2 Rg1 Rfg2 Be2 R2g5 Bg4 Qf7 Kc8 Ng2 Bf3 Qe8 Bg4 Qd7+
1Q3k1r/2N1N2q/r7/1N1b1p2/BbR2b2/1QQrbR2/1K2N2r/1B1BqRn1 b - - 0 1 legal: proof: c4 g5 f4 d5 cxd5 e5 b3 exf4 a4 b5 axb5 g4 Ra2 g3 Ra3 Nc6 Ra1 Nb8 h4 Qg5 h5 Qh4 Bb2 Ba6 Bd4 Nd7 Be3 Ne5 Bf2 Ng6 hxg6 Ke7 Qc1 gxf2+ Kd1 Bg7 g4 Bf8 Kc2 Kd7 Qd1 Qd8 g5 Ke8 Kc1 Bc8 d4 c5 e4 h5 b4 a5 d6 f5 e5 c4 g7 c3 b6 c2 d5 f3 e6 h4 d7+ Ke7 g6 a4 d6+ Kf6 b7 a3 b8R a2 e7 h3 e8B h2 b5 Ra6 b6 Ra5 b7 Ra8 Be2 f1Q Na3 f2 Nb5 Ra6 Kb2 Qe1 Rc1 Nh6 g8N+ Kg7 Ne7 Qc7 d8Q f1R d7 Nf7 Bf3 Ne5 Ne2 Rf2 Rf1 h1R Qd4 R1h5 Qc3 Rh3 Ra8 Rg3 b8Q Rfh2 Ra7 Qb7 Qb6 Rgh3 d8N Be6 Be4 Bd5 Bc6 Rd3 Ne6+ Kh6 g7 Nf3 g8B Ng1 Rf3 Qc7 Rd1 Qd7 Rc7 c1B+ Kc2 Bf4 Kb2 Be3 Rc8 Qb7 Nec7 Bf4 Qe3 Qa7 Qb3 Kg7 Bf7 Qb7 Bh5 Qa7 Bg4 Kf7 Qc1 B8h6 Be8+ Kf8 Qcc3 Be3 Ra1 Bhf4 Rc1 Rd4 Bb1 Rd3 Na8 Qb7 Rc4 Qd7 Nac7 a1B+ Kc2 Bb2 Rd1 Ba3 Rc1 Qf2 Rf1 Bb4 Kb2 Qe1 Na3 Qc8 Ba4 Qe8 Nab5 Qh4 Qe1 Qh7 Qec3 Qd8 Nd6 Rd4 Rg3 Bg2 Ndb5 Rd7 Nc1 Rdd6 Nc8 Qdh4 Bd1 Rd3 Ne2 Bd5 Rgf3 Qe1 Ne7+
1kN1QQ2/1n2R2R/Bn6/3QN2K/n2pb1R1/r1r3p1/B1N1N3/bBqbn3 b - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 f6 h6 g4 Ba6 g5 Qc7 f5 Qd8 fxg7 Bb7 g6 Bc8 Bg5 hxg5 Ke2 d5 Kf3 Kd7 Kg4 Kc7 b4 e5 h4 a5 c4 d3 c5 d2 h5 e4 c6 a4 b6+ Kd6 c7 a3 h6 e3 b5 e2 h7 e1N b7 a2 b6 Nc6 b8R Be6 c8N+ Kd7 b7 Kc7 Kh5 g4 f6 g3 f7 Na5 Ne2 Bd7 Na3 Bf5 Nc2 Ne7 g8B Bg7 f8Q Be4 Rh3 Bb2 g7 Ra6 Rb1 Ba1 Rb4 Rc6 Bf7 Rc3 g8B Qe8 Rh4 Qc6 Bg6 Qc5 Ra8 Ra3 b8N Nb7 Nc6 d4+ Ne5 Qc3 Rg4 Nd5 Ra7 Nb6 Bd5 Rg8 h8Q Kb8 Qc1 d1B Qg5 Qc6 Qe8 Rg7 Qhf8 Rc7 Rb3 Qc4 Re3 Qc3 Be6 Qd2 Qgd8 Qc1 Qd5 Rcc3 Bh7 Bb2 Bg6 a1N Bg8 Nb3 Bf5 N7c5 Rh7 Na5 Bge6 Bg2 Bd3 Be4 Ba6 Nab7 Bg2 Bf5 Be4 Ba1 Nf7 Na5 Qb3 Ra4 Na3 Nd7 Bb1 Nc5 Nc2 Nab7 Qbb5 Bd3 Bea2 Raa3 Re7 Nca4 Ne5 Be4 Qd5
2qbQ3/1NRR1Q1b/1KBBNN2/7p/4r1rb/2R3k1/bprn1Nb1/B2Q4 b - - 0 1 illegal: No possible last move
Nbr2k2/Q1bn2q1/4q2N/1b1R1N1Q/1K1p2p1/R2BrqQ1/4qRB1/5N1B b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 h6 Nh3 Nc6 Ke1 Nce7 Bg5 f4 Ng1 Nf5 gxf5 hxg5 Kd2 d5 h4 a5 b4 a4 c4 g4 e4 g5 h5 a3 b6 a2 e6 f3 h6 f2 c5 d3 Kc3 g3 b5 d2 e7 g2 h7 d4+ Kb4 Ba6 b7 Qd7 b8Q+ Qd8 e5 Bh6 c6 Bf8 c7 Bh6 c8B Ra7 f6 Qc7 b6 Ra8 b7 Qd7 Bd3 f1Q Nf3 g1Q Nh4 Qdf5 Qh5+ Qg6 Bh3+ Kf7 e8B+ Kf8 f7 d1Q e6 g4 e7+ Kg7 f8R Qff2 Bc6 Qfe2 Bhg2 Bf4 Qa7 Qge1+ Nd2 Bb8 Rf2 Nf6 e8N+ Kf8 Nc7 Qg7 Nf5 Nd7 Rhf1 Rg8 h8N Bb5 Nf7 Qe6 Bcf3 Qe1e2 N7h6 Rh8 Bfe4 Qf3 Rh1 Qde2 Nf1 Rh7 Rh3 Rh8 Rc1 a1B Rc5 Rg8 Rd5 Bc3+ Ka3 Bd2 Rg3 Bg5 Kb4 Bd8 Bh1 Qf4 Beg2 Qff3 Qa5 Ra6 Na8 Bdc7 Qb6 Ra3 Qa7 Bf4 Bb1 Re3 Bd3 Bbc7 b8Q+ Bd8 Qe5 Bc7 Rh3 Bh2 Qg3 Bb8 Qgh4 Bhc7 Qg3 Qf4 Ne7 Rf3 Bc2 Qff7 Qf4 Ke8 Bh7 Rc3 Rd3 Rf8 Qg3 Rg8 Rd1 Re3 Rd3 Rf8 Ra3 Rh8 Ng6 Qff3 Nh4+ Ke7 Be4 Rc8 Bd3 Kf8 N4f5
1b3B2/p2q1Q2/2n1B1Q1/RK6/B1r3pN/RRNnrN1k/3q4/Q1Bn1q1q b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 Bf5 axb5 Bc2 f4 Bg6 h4 e6 f5 exf5 h5 fxg4 hxg6 g3 b4 Kd7 e4 f5 Ke2 c5 Kd3 h5 Kc4 f4 d4 h4 b6 g2 g7 h3 d6 Ke6 d7 f3 b5 f2 b7 h2 e5 Kf5 e6 g4 e7 Qa5 d8Q Qa6 e8B Qd6 d5 Qe5 b6 Qb2 d6 Qa2+ Kb5 c4 d7 c3 Bc4 f1Q Qc7 c2 d8Q Nf6 g8N Bd6 Nf3 g1Q Qf7 Rh3 Nc3 Nc6 b8B Qd4 b7 Bg3 Qe1 Qd7 Bd6 Rc8 Bf8 Bb8 Qb6 Rc7 Rg1 h1Q Rg2 Rc8 Rd2 Rc7 Nh6+ Kf4 Nf5 Nd5 Rd3+ Ne3 Be6 Rg3 Qd1 Rh3 N5h4+ Kg3 Bb4 Qb2 Ra5 Qa2 Bf8 Rc8 Bd2 c1N Qa4 Qc2 Qa1 Nd1 Bg5 Qd2 Bgh6 Bd6 b8R Rc7 Qd4 Rc8 Qdg7 Bf4 Rb7 Bb8 Qgg6 Rc7 Ka4 Rc8 Rb3 Rc7 Re3 Nd3 Kb5 Rc8 Ba3 Rc7 Bhf8 Rc8 Bc1 Rc7 Nd4+ Kh2 Rba3 Rg3 Ndf3+ Kh3 Re4 Rc8 Rb4 Rc7 Rbb3 Rc8 Ne5 Re3 Nef3 Nce5+ Ka6 Qd8 Rb1 Rc4 Ba4 Nc6 Rbb3 Qd7 Kb5
2R1b2n/k2NQrR1/R3B2p/3Bbnr1/1pN1K3/1N4rB/2n1Q3/2QR1n1r b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Ra7 h4 Be6 h5 Ra8 Bb2 Bd7 Be5 Bc8 Bf4 gxf4 g5 Qd7 Qg4 Qe6+ Qe2 Qf7 Qd1 Qg6 hxg6 Ra4 Bc4 Ra7 Bf1 Ra8 Ke2 Kd8 Kd3 e5 a4 c5 d6 b5 f7 c4+ Ke4 b3 d4 f3 a5 f2 d7 Kc7 d8R Kb7 g7 c3 f6 b2 d5 c2 d6 c1R d7 b4 g6 h6 a6+ Kb6 a7 Bd6 f8N Rc7 f7 Ne7 g8R Nf5 g7 Nc6 Qe2 Nce7 Na3 b1R Nf3 Ng6 Bh3 f1N Nd2 Rh7 Nb3 Rc3 Re8 Nh8 d8Q+ Kb7 Nd7 Rg3 f8Q Rb8 a8B+ Ka7 Qa2 Rb5 Bd5 Bb7 Qf7 Bc6 Qg5 Bc7 Rc8 Rd1 Nf6 Be8 Nd7 Rc1 Qfe7 Rbc5 Rf8 Bd6 g8B Rf7 Qh2 N1e3 Qa2 Nd4 Bc6 Rff3 Bge6 Rf7 Kd3 e4+ Kd2 Rcf5 Bcd5 Be5 Rg8 Rcf1 Qf4 Rfg5 Rg7 Rb1 Rhc1 Ndf5 R1c6 Rh1 Rd1 Nf1+ Kc2 e3 Kd3 e2+ Ke4 e1N Qe2 Rh2 Nc4 Nc2 Qc1 Rh1 Ra6+
4K3/rkb1RprN/5Q1R/1N1q4/pqBBNrr1/4B3/b1q1BQ1b/2Q3R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 exf4 Qd3 cxd4 Qd1 h4 h3 g5 Na3 Nf6 Nb1 Nh5 Nc3 Nc6 Nb1 Ne5 gxh5 g4 Bg2 g3 Bf1 Ng4 hxg4 Ba6 Qd2 Bb7 Qd1 Bc8 Kd2 d5 Kd3 Kd7 b4 Kc7 e4 a5 c4 g2 b6+ Kb7 b5 f3 e5 f2 e6 h3 g5 h2 h6 a4 e7 Bg4 e8R Rc8 c5 Rg8 h7 Bf3 h8B Rc7 c6+ Kb8 b7 Ba3 g6 Bb4 g7 Bg4 Nf3 g1B Be3 Bf8 Be2 f1R Re7 Rc8 c7+ Ka7 b6+ Ka6 b8Q Qd6 b7 Qb6 Ng5 Rf4 Nh7 Qb4 Qc1 Be6 Nc3 Rd8 c8N Rd7 Qe5 Rc7 b8Q Ra7 Nd6 Rg4 Kd2+ d3 Nb5 d4 Qf6 Rf4 Qbe5 Kb6 Qh4 Ba2 Qf2 Kc6 Rc7+ Kb6 Qf6+ Bd6 Re7 Ka6 Qf5 Bc7 Qf6+ Kb7 Rb1 Rd8 g8B Rd5 Ra1 Rg5 Bg7 Rgg4 Bh8 Qb3 Ne4 Rg7 Nhg5 Qc4 Bh7 Qd5 Bg6 Qd6 Nh7 Qb4+ Kd1 d2 Kc2 Rg4 Kd3 Rf4 Bf5 Rfg4 Be6 d1R+ Bd2 Rf1 Bc4 Kb8 Be3 Kb7 Qg3 Rff4 Qge1 Bf2 Qf1 Bh4 Qf2 Bg3 Rg1 h1Q Rb1 Qg2 Rh1 Rg8 Rh6 R8g7 Qc2 Qf1 Qg5 Rg8 Be5 Rg7 Qf6 Qc1 Qd2 Qcb2 Rg1 Bh2 Qc1 Q2a3+ Bb3 Qd2+ Kc4 d3 Kd5 Qc2 Bc4 d2 Bc3 Qb4 Ba1 Ka8 Kc6 d1Q Bb2 Qd4 Bc3 Qe5 Kd7 Qd5+ Ke8 Kb7 Bcd4
QnQ4N/R1Kp4/B3B3/1R1r2Nb/q2nb2N/3pR3/Bp2n3/k1BQq2r b - - 0 1 legal: proof: g4 a5 d4 c5 f4 cxd4 b4 axb4 h4 f5 e4 g5 exf5 e6 fxg5 Ra4 h5 Ra7 h6 Bc5 g6 Bf8 g5 Bg7 hxg7 Ra8 Ke2 Ke7 Kd3 Kd6 Kc4 Ke5 Kc5 b5 a4 h5 c4 b3 a5 b4 a6 h4 a7 h3 f6 h2 f7 b2 f8N b3 Nc3 b1B Ne4 Nh6 g8B Ba6 g7 Nf5 g6 Qh4 Ng5 Be4 Kb6 b2 c5 Kd5 c6 Be2 c7 Bh5 Bb5 d3 c8Q Nd4 N1f3 Rh7 Rg1 h1N Re1 Ng3 Re3 Nge2 Kc7 Kc5 Ra4 e5 Be6 Qf4 Ra2 Kb4 g8R Kc3 g7 Qg4 Qg1 Kc2 Ba6 Kb1 Ng6 Rh6 Ra5 Rh8 Ba2+ Ka1 Qd1 Rh6 Nh8 Rd6 Nh7 Rd5 Nhg5 Bf5 Kd8 Nbc6+ Kc7 e4 Ng6 Nf4 Re1 e3 Qb7 Rf8 Rc5 e2 Nh8 Qg2 Rb5 Be4 Nh4 Rf6 Ra8 Nb8 g8B Qf2 Rg1 e1Q Qc8 Rff5 Be6 Qc2+ Kb7 Qa4 Kc7 Nfe2 Rg3 Rf1 Re3 Nbc6 Rab8 Rg1 a8Q Rh1 R8b7 Nb8 Ra7
1Q3K1k/rNb1R1N1/6p1/1Rp1B3/2b2R2/1NbB1qpn/5n1b/1QBQN2b b - - 0 1 legal: proof: c4 h5 d4 d5 cxd5 Kd7 g4 hxg4 e4 b5 a4 Nc6 axb5 Nb8 d6 Ke6 d7 Kd6 f4 Ke6 f5+ Kf6 d5 a5 Ra3 Nh6 Ra4 Nxf5 Ra1 Ra6 Qd2 Rd6 Qd1 Ne3 e5+ Kg6 exd6 Kf6 Qc2 Nd1 Qd2 Nf2 Qc2 Qe8 Qd1 Qd8 Kd2 c5 Kc3 e5 Kc4 e4 h4 g3 b4 a4 b6 e3 b5 a3 b7 e2 h5 e1B b6 a2 h6 g6 h7 Kg7 Nf3 f5 Bd3 f4 Rf1 Bc3 Ne1 f3 Nd2 Qe7 d8N Qe2 d7 Rg8 h8B+ Kh7 d6 Bh6 Kd5 Nc6 b8Q Rg7 b7 Be3 Ke6 Nb4 Nb3 Nd5 Rb1 a1B Rb2 Rf7 Be5 Rg7 Rb1 Nf4+ Kf6 Ba5 Ne6 Kh8 d8N B1c3 d7 Bc7 Rb2 Rh7 Ng7 N4h3 Kf7 Bed4 Kf8 Qe4 Qa8 Qg4 b8R Bb7 Re2 Nh1 Ba6 Rh4 Bef4 Bg1 Re7 f2 Be5 Bh2 Bd3 Qh5 Qa3 Ra4 Qb2 Ra7 Qb1 Qe2 Nc6 Ba8 Nca5 Bd5 d8Q Bc4 Rg1 f1B Rb5 Bg2 Rf1 Qg4 Rff7 Qf3 Qb8 N1f2 Rf4 Bh1 Nb7
nRR3r1/p3B1pK/Q1R3Q1/1N1kp3/1R1qr2N/8/bn2QrB1/1nB2N1r b - - 0 1 legal: proof: b4 c5 c4 d5 a4 h5 g4 hxg4 e3 e6 e4 b5 axb5 f5 cxd5 fxe4 Qb3 c4 Qd1 Bc5 bxc5 Rh4 Ne2 Rh5 Ng1 Rh8 Ke2 Kf7 Ke3 g3 Kf4 g2 d4 c3 h4 e3 c6 c2 h5 e2 c7 e1R b6 Rh7 d6 Rh6 d5 Ba6 c8N e5+ Kf5 Qc7 f4 Nd7 b7 Qd8 b8R Re4 Nf3 g1R Nh4 Rc4 Qe2 Qa5 Bg2 Rc3 Nd2 Rc5 Ra4 Rh8 h6 Bb7 h7 Qa6 Rb4 Qc6 Nf1 Nb6 d7 Qc7 d8Q Nf6 d6 Nfd5 d7 Rg8 h8R Nc3 Qg5 Nb1 d8Q Rc4 Qdd3 Re4 Qa6 Bd5 Qh6 Qc5 Nd6+ Ke7 Kg6 Ke6 Nb5 Ba2 f5+ Kd5 f6 Qd4 f7 Rf8 Rh2 Rh1 Kh7 Rg8 Qg6 Rf8 Bg5 c1N Rh3 Rg8 f8B Nd3 Bfe7 Nb2 Rc3 Rf8 Rbc8 Rf2 Bc1 Rb8 R8c6 Rg8 Rc8 Na8 R3c6 Rd8 Rf8 Re8 Rf4 Rg8 Rff8 Na3 Rb8 Nb1 Rfc8
1BQkb1b1/3bRQ1r/n3n3/1r3pp1/4BNR1/1n5p/3RB1BN/Q1nN3K b - - 0 1 legal: proof: d4 b5 h4 f5 a4 c5 axb5 cxd4 g4 e6 h5 g6 g5 Qc7 h6 Bg7 hxg7 Qd8 f4 Qf6 gxf6 e5 Rh2 exf4 Rh5 Na6 Rh1 Nb8 Kf2 a5 Kg2 d5 e4 h5 b4 g5 c4 d3 f7+ Ke7 f8N h4 c5 d4 e5 d2 b6 a4 b7 a3 c6 d3 c7 a2 e6 Ra5 b5 Nc6 b8Q Bd7 c8B Ra6 b6 Ra3 b7 Rh7 Be2 Ra5 Rh2 h3+ Kh1 f3 Ng6+ Kd8 Nf4 f2 Nf3 f1B Nc3 Rc5 Qa7 Nge7 g8B Rb5 b8Q Ng6 Qb3 Be8 Nd1 Nb4 Rg2 Na6 Rg4 Bd7 Nh2 Nf8 Qc3 Be8 Qf7 Bd7 Rb1 a1N Rb2 Nb3 Qbe5 Be8 Bb7 Bd7 Be4 Be8 Ne3 d1N Rd2 Nb2 Nd1 Bd7 Qec5 Be8 Qa3 Bd7 Qa1 Be8 Rc2 d2 Qc5 Nd3 e7+ Kd7 Bb2 Ndc1 Be5 Ne6 Bc7 Kc8 Bb8+ Kd7 Ne3 d1B Rd2+ Nbd4 Bg2 Bb3 Nd1 Bd5 Bef3 Bfc4 Be2 Bc6 Be4 Kc8 Bg2 Bd7 Be4 Ndb3 e8R+ Nd8 Re7 Ne6 Bg2 Kd8 Qh5 Nec7 B8d5 Ne6 Qf7 Be8 Bde4+ Bcd7 Qff6 Ng7 Qf8 Bg8 Qf7 Ne6 Qc8+
1Nk1B3/Kp1RQqq1/1p6/N1qQq2B/3b4/Q1NbBR2/Nn1p2r1/R5b1 b - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 g5 e4 g4 b4 Qb6 f4 Qf6 d4 cxd4 b5 Qb6 f6 Kd8 f5 Kc7 f7 Na6 Be3 Kd6 Bc1 Qd8 b6 axb6 Bd3 Kc6 Bf1 Nc5 f6 Ra5 Nc3 Ne6 Nb1 Rf5 exf5 Ng5 hxg5 Kd5 Kf2 Kd6 Ke1 Kc6 Kd2 Kc7 Kd3 h5 Kc4 e5 a4 d3 a5 d6 a6 h4 g6 e4 g7 e3 a7 g3 a8Q e2 Kd5 e1B c4 g2 c5 h3 c6 h2 Be2 Rh3 Qa3 Bh4 Bh5 Qe7 Ne2 Nh6 g8N Bg7 f8N g1Q f7 Bd7 f6 Bf5 Nd7 Bf2 f8Q Ng4 f7 Ne5 Qdb3 Qe8 Ne7 Rg3 Bh6 Rg4 Nc1 Nc4 Na2 Nb2 Nbc3 Qc8 Bc1 Bg6 Ke6 d5 Be3 d4 Qd1 Qg3 Qf3 Rg5 Rhd1 h1Q Qe8 Bh8 f8R Qf4 Rf7 Qg2 Rf1 Bf6 Qd5 Bg1 Rg7 Be5 Rf3 Qgh2 Nd1 Rg2 Ndc3 d2 Qf7 d1Q Qf6 Kd8 c7+ Ke8 Nc6 d3 Na5 Qda4 Rh7 d2 Rf7 Qad4 Qg7 Qa8 c8B Bd3 Qg5 Bf6 Qge5 Kd8 Kd6 Qhg3 Re7 Qg7 Rf7 Qfe4 Qg5 Ke8 Kc7 Qb4 Qh4 Bd4 Qf6 Qbe7 Qfd6 Q7e6 Q6c5 Qa6 Kb8 Qc4 Ka7 Kd8 Nb8+ Qd7 Qcd6 Qc5 Re7 Qf5 Qf6 Qdd6 Bd7 Qde5 Bde8+ Kc8 Rd7 Qfg6 Qg5 Q6f7 Qe7
2Qr2rQ/2KQ3N/2NppB1b/1p4NR/1qn5/1Br1Rb2/Bp2R2Q/b2k4 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 e4 c6 d4 f5 exf5 Na6 a3 Nc7 a4 axb4 d5 cxd5 a5 d4 Qg4 Nd5 Qd1 Nb6 axb6 Bb7 Bh3 Ba6 Bf1 Bc8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 b3 f4 g4 c4 d3 h4 g3 h6 d2 h5 g2 h7 Ra7 c5 Qc7 b7 Nh6 b8R Rb7 c6 Ng8 h6 Qd8 c7 Rb6 Nc3 Qe8 Nh3 g1B Na2 Rc6 Ng5 Ra6 Nb4 Qh5 Nc6 Ra2 Bb2+ Bd4 Bc4 Be5 Rc1 Ra4 Rc2 Qe8 Rh5 Bb7 c8B Rb4 Ra8 Bg7 Ra3 Qf8 Kc5 Bc3 Kb6 e6 Kc7 Ba8 Bb7 Ne7 Bd5 Rg8 h8Q Nc8 h7 Qe7 Ba1 Nb6 Bb2 Rb8 Qc8 Rc4 h8Q Rc5 Qg1 d1R Qh2 Nc4 Ba1 d6+ Qd7 Rg1 Qc8 Bh6 Bb2 Kg7 f6+ Kg6 f7 Kf5 f8Q+ Kg4 f5 Qh7 f6 Qe4 f7 Qe1 Ne4 Kf3 Qh8 Rg8 f8N Bcg7 Bf6 Qb4 Ng5+ Ke3 Bd8 Ba1 Nfh7 Kd3 Bf6 Ke3 Qce8 Rd8 Qc8 Kd3 Qed7 Ke3 Raa2 b2 Ra4 Nd2 Ra3+ Rc3 Ba2 Kd3 Qh4 Ke2 Qh2+ Kd1 Rb3 Rg3 Re3 Nc4 Na7 Nd2 Bbd5 Nc4 Nc6 Rh3 Re5 Rc3 Re3 Na5 Bdb3 Nc4 Nd4 Bd5 Nc6 Bf3 Rce2+
2R1B2R/1N3bnN/b1pbk2K/p6Q/3QBNq1/2B1b2r/1pp1nN2/1R3Q2 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 a4 dxc4 h4 gxh4 a5 b6 a6 Qd5 Ra5 Qf3 Ra1 Qb7 axb7 a5 b4 Ra7 b5 Ra6 bxa6 b5 Ke2 Kd7 Kf3 h5 Kf4 e5+ Kg5 c3 g4 e4 f4 b4 d4 e3 a7 h3 a8B c2 d5 e2 d6 e1B f6 b3 f5 h4 f7 b2 f6 h2 Nd2 h3 Bb5+ Ke6 d7 Bb4 f8N+ Kd5 d8N Rh4 f7 Bc5 Rb1 Bd4 Be8 Bc3 Ne4+ Bd4 Bd2 Ne7 Ne2 Bg3 Bc3 Nbc6 b8R Ba6 Rc8 Nf5 Qf1 Ba7 Nf2 Bd6 Kg6 Be3 g5 Rg4 Kh5 Rg3 g6 Rf3 g7 Rg3 Rg1 h1B g8Q h2 Qg4 Ng7+ Kg6 Rf3 Rg3 Bg2 Rh3 Bh1 Rh8 Rh3 Qh4 Bf3 Qf4 Bh5+ Kg5 Bg6 Nh7 Bh5 f8Q h1Q Kh6 Qg2 Qf6 Bf7+ Qh4 Qg4 Qh5+ Be5 Nb7 Nd4 Nd6+ Ke6 Bg2 c6 Nb7 Bc1 Qd2 Bg3 Be4 Bd6 Qe3 Bd2 Nc1 Ne2 Ncd3 Nf4 Qa7 Be3 Qd4 Ne2+ Nf4+
2kn3R/qR1bQ1p1/4qRQ1/R1Bpn1K1/3p2QN/4Nq2/B1p5/1Bb3Nn b - - 0 1 legal: proof: d4 b5 c4 e5 cxb5 exd4 b4 a5 g4 h5 f4 hxg4 a4 Rh5 e4 Ba6 e5 Bc8 e6 Rc5 b6 Rd5 b7 Nh6 b5 Re5+ fxe5 Ng8 Nf3 Ra6 Ng1 Rc6 b6 Rc5 Nf3 Rb5 axb5 a4 Ng1 Qf6 Bh3 Qg5 Bf1 Qd8 Ke2 c5 h4 d5 h5 f5 h6 c4 h7 f4 h8N a3 e7 Kd7 e8B+ Ke6 Ng6 a2 Nd2 g3 Kf3 c3 Kg4 g2 Rh6 f3 Ba3 f2 Nh4+ Qf6 Nc4 Be7 Bc5 Nc6 b8Q Na7 b7 Nc6 b6 Bd6 Ne3 Nge7 Bc4 f1Q Bg6 Kd7 Bb1 Qe6+ Kg5 Ng6 Qg4 Qf3 Qa7 Nd8 b8R+ Bc7 b7 Bd6 Bb6 Ba3 Bc5 Bc1 Ra8 Kc7 Qa6 Bd7 b8R Qd6 e6 Ne5 e7 Qe6 Ne2 g1N e8Q Qe7+ Rf6 Qe6 Qe7 Nh3+ Kh5 Nf2 Ng1 Nh1 Kg5 Ndc6 Rh8 Nd8 Ra7+ Kb8 Qa4 Kc8 Qc2 Qg3 Qg6 Qg2 Be4 Qf3 Rb1 a1Q Rbb7 Qa4 Bb1 c2 Bca2 Qa5 Ra6 Qab6 Ra4 Qa7 Ra5
b1qkQQ1R/3N2r1/3Nn3/n2qB1qr/1rr5/R2R1Br1/2R2KB1/b1Q2nN1 b - - 0 1 illegal: No possible last move, all moves rejected
4NBbn/1K2R3/1nrQ2qn/2bRBQ2/Q1N2r2/1n1N4/1qkBbR1r/5q1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 c5 b3 f5+ Ke5 a5 e4 h5 b6 c4 b7 f3 g5 h3 d6 f4 Kd5 f2 d7 a4 g6 h4 g7 h2 e5 h3 e6 a3 e7 f3 e8N c3 Bg2 f1R Ne2 f2 Bd2 a2 Na3 Qf6 d8B Bc5 Be7 Qg6 Nc1 Nh6 g8Q Nf7 Qh7 Nd7 b8B Ra6 Be5 Rc6 Bf8 Ba6 Nc4 Bb5 Rb1 a1N Rb2 Ba6 Rg1 h1B Qhh5 h2 Qf5 Rh6 Rc2 Nh8 Nd3+ Kb5 b4 Ka4 b5 Kb3 Ra2+ c2 b6 Rh3 Qdg4 c1Q b7 Qb2 b8Q+ Kc2 Qd6 Nb3 Be4 Bf3 Qh4 Be2 Bh1 Bc8 Qhe4 Rh4 Rg2 Rf4 Ra7 Rd1 Rb7 f1Q Rf2 Ra1 Ra7 Ra2 Rc7 Nb8 Re7 Nd7 Bf3 h1N Bg2 Ng3 Bh1 Rf3 Qeg4 Rf4 Qh4 Rca6 Qhg4 Nb6+ Kc6 Be6 d5 Bg8 Kb7 Qh6 Qc6 Qf6 d6 Qe6 d7 Qg6 Qfh5 Nf5 d8R Nh6 Qhf5 Nc8 Qcf6 Rc6 Rd5 Nb6 Qd6 Ra4 Qg1 Rh4 Qgg4 Rh2 Na5 Rf4 Nc4 Rf3 Qge4 Rf4 Qd4 Qbc1 Qa1 Qb2 Qa4
kN1nN2n/1r1r1r2/1BR5/RK2Rb2/2n2nQ1/qR2BB2/rQ4Qr/3Nb2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kc4 a5 e4 c5 g4 Kc7 b4 Kb7 b6 f3 g5 f2 g6 a4 g7 f4 b5 a3 e5 a2 d6 f3 e6 h3 d5 h2 d7 h4 d6 h3 e7 Rh7 e8Q Ra7 Qe7 Ka8 Na3 Nc6 Qee2 Rb7 Bg2 f1R Qb2 f2 Qg4 Nh6 g8Q Nf7 Bf3 Nh8 Be3 Qe7 d8B Bf5 d7 Rf7 Qg2 Rd1 Q8g4 f1N Ne2 Qd6 Rg1 h1R Nc3 h2 Bc7 Rd5 Nd1 Nd8 Rc1 a1R Rc2 Ng3 Re1 Nh5 Rc3 Nf4 Rc2 Rb8 Ree2 Ra2 b7+ Ka7 Rc3 Bg7 Rc1 Bc3 Rcc2 Be1 b6+ Ka6 Nb5 Rd2 Kb3 c4+ Kc3 Qd3+ Kb4 c3 Rc1 c2 Nd6 Qb3+ Kc5 Rd3 Ne8 Qa3+ Kc4 Rd5 Ra1 c1N Rc2 Nc6 d8R Nb3 Re2 Rd3 Rd6 Nd8 Rh6 Rdd7 Rc6 Ra8 b8N+ Kb7 Kb5 Na5 Rac1 Ra7 R1c5 Nc4 Re5 Rde7 Rd2 Ka8 Rdd5 Rf1 Rdc5 h1B Rcd5 Rf2 Rdc5 Nde6 Bd8 Rad7 b7+ Ka7 Bc7 Nd8 Qf1 Bd2 Na6 Re2 b8R Qd3 Ra8+ Kb7 Nb8 Rd4 Ra3 Be1 Ka4+ Ka8 Bb6 Rh2 Qfg2 Rb7 Rb5 Rdd7 Ra5+ Ra7 Kb5 Qd6 Rb3 Qa3 Na6 Rab7 Nb8+
1Rnbb3/1rBB3R/nB3R2/7N/nNbr1Bq1/QQb5/4bKN1/n3rQ1k b - - 0 1 illegal: No possible last move
K3QNr1/2BN1bQb/3BR1Q1/R1n2N1b/3n4/2k2RbQ/nqnb1qB1/r7 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 a5 g6 a4 g7 a3 b6 h3 d6 h2 d7 a2 b5 f3 d5 f2 d6 f6 b7 h4 b6 h3 Nd2+ Kc3 Kd5 c4 e4 f5 e5 f4 e6 f3 e7 Nc6 e8Q Nd4 b8R Qf6 d8B Bf5 b7 Bh7 d7 Bd6 Nb3 Bg3 Bg2 f1N Bf4 f2 Qf3+ Ne3+ Kc5 f1Q Bdc7 Qf2 d8N Ne7 g8Q Nec6 Kb6 Nb4+ Bfd6 Qe5 Qgf8 Rg8 Qg6 Ra4 Qfg4 Nec2 Nf3 Ra3 Rhe1 h1B Q4h5 h2 Nh4 Na6 Qhf5 Nc5 Qh3 Qee2 Ra8 Ra7 Rad1 a1B b8Q Bb2 Ne6 Bc1 Rd2 Ra1 Qfg7 Qe5 Rdd1 Bd2 Ra5 Qef6 Ka7 Qe5 Bf1 Bf3 Bg2 h1B Qbe8 Bh5 Nf8 Qef6 Ka8 Qe5 Bb7 Bd5 Nf5 Bf7 Bg2 Qf6 Be7 Qb6 Re6 Qb4 Rh1 Qa3 Rhe1 Qb2 Rf1 Nd7 Bh4 Ne3 Rea6 Qf3+ Ka7 Kc2 Rf6 c3 Rf2 Qe2 Rf4 Qf2 Rf3 Kd3 Rfa6 c2 Ka8 c1N Nc5+ Kc3 Be7 Na2 Re6 Kc2 Na6 Nc5 Nb8 Kb3 Bed6 Kc3 Rf4 Nc2 Nbd7 Qe2 Rf2 Qf1 Rf4 Qf2 Rf3+
1kn1R3/4B1b1/1b1q4/1R1R4/b1BRQ1Qb/qB1KNNNr/4r3/Q1rb1n1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 e4 f5 b4 a5 g4 c5 b6 a4 b7 Kc7 g5 f3 b5 f4 e5 a3 e6 c4 g6 a2 e7 f2 e8R h3 g7 c3+ Ke2 h4 Nd2 c2 Ndf3 h2 Re6 h3 Rb1 a1B Re8 Ne7 g8B Bg4 Ba3 c1B Kd3 Qd6 Ne2 Nbc6 b8N Na5 Nc6 Nc8 Nb4 Kb8 b6 Be3 b7 Nb3 Nc2 Nd2 Ng3 Be7 Rb5 Bh4 Bf7 Bb2 Qa1 Rh7 Be2 f1Q Bg8 Qc1 Rd1 Bf2 Ne3 h1B Bb4 h2 Bf1 Qdc6 d6 Ra2 d5 Bg7 d7 Qd6 d8Q Rh5 Be2 Nf1 Qe7 Bd7 Qe4 Qa3+ Kc4 Bg2 Rd4 h1R Bd1 Bgh3 Bb3 Re2 Kd3 Bhg4 Bc5 Qda6 Be7 Q6d6 Rc5 Ba4 Rb5 Be1 Be6 Ba5 Bf7 Bb6 Bg8 Qdb4 d6 Rh3 d7 Qd6 d8R Rh6 Ne5 f3 Bc4 f2 Nf3 Rh5 Rd7 Rc5 Be6 Rc1 Bc4 Nh2 Rdd8 f1R Rd7 Rh1 Rdd5 Ka7 Rdd8 Nf1 b8Q+ Ka6 Qc7 Bh5 Qc5 Kb7 Rd4+ Kb8 Qcf5 Qc6 R8d5 Qcd6 Nh2 Rg2 Qg5 Bd1 Qgg4 Re2 Nf3
q1R1r1n1/1r2B2Q/1Nb2Q1N/Bk5K/Qb1qR1n1/Q1Rr2qn/n1BN3r/8 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Kd6 e7 c3 e8Q a3 b6 h4 b5 a2 b7 h2 b6 c2 g6 h3 g7 Ra4 Qe3 Be7 Ne2 Qd7 Ng3 Rb4 Qa3 Nc6 b8R Bb7 Bd2 c1N Qdb3 Qd8 Rg1 h1N Bd3 h2 Re1 Nf2 Rc8 h1R Bc2 Nh3 Re4 Rh2 Be1 Qd7 Nd2 Qc7 Rb1 a1Q Rb2 Ba8 b7 Na2 b8N Bb7 Nd7 Qd8 Rc7 Qa8 Nb6 Bf8 Rc8 Be7 Nh1 Bf8 Nf2 Ne5+ Ke2 Ng4 Kf3 Bc6 Rb1 Ne7 g8Q Qb2 Qh7 Ng8 Rc1 Be7 Nbc4+ Kd7 d6 Rb7 d5 Qd4 Bd1 N8h6 Rc2 Re8 Rc3 Ng8 Bc2 Rh1 Kg2 f3+ Kg3 Rh2 Qab4 N8f6 Kh4 Ng8+ Kh5 f4 Qa5 Rb8 Qaa3 Rb7 Nd1 f2 Nde3 f1Q Nf5 f3 Nh6 Qfd3 Bh4 f2 Bg5 Rd8 Nb6+ Ke8 Bf6 f1R Bh4 Rd1 d7+ Kf8 d6 Re8 d8B Qg3 d7 Bb4 Ndc4 Rd3 Bc7 Ba4 d8Q Bb5 Qg5 Bc6 Qe5 Rd8 Be7+ Ke8 Na4 Kd7 Ba5 Rf8 Nd2 Re8 Qf6 Rb6 Rb8 Kc7 Rd8 Kb7 Rb8+ Ka6 Rc8 Rb7 Nb6 Kb5 Qba4+
4N3/KQr3qR/4n1qQ/b1BR2b1/B6R/2R1NrN1/1nbBkqQ1/1b3rr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 a5 e4 f5 g4 c5 b6 h5 b5 f3 Ke3 h3 b7 h4 b6 f4+ Kd3 h2 Kc4 f2 Kb5 h3 g5 a4 g6 c4 g7 c3 Qh5 f3 Na3 c2 Qe8 Qf6 Qg6 Ra7 Bd2 c1B Qh6 Ne7 g8Q Nf5 Qh5 Ng7 Ne2 Ne6 Qh6 Qg6 Ng3 Nd7 b8Q+ Rc7 b7 Nb6 Ka6 Nc4 Nc2 a3 Ka7 a2 Ne3 Nb2 Bb5 f1Q Ba4 f2 Rb1 a1Q e5+ Ke7 Qa8 Qe1 Qb8 f1R Qa8 Qf2 d6+ Kd8 d7 Ke7 d8R Bd7 Rg1 h1B d5 h2 Rc8 Be4 Rh1 Bc2 Qb8 Bb5 d6+ Kd7 Qgg7+ Kc6 d7 Kc5 d8R Bbd3 Rd4 Bd6 Rh4 Rf8 Rd8 Rf3 Rd7 Nc4 Rb3 Nb2 Qbg8 Be4 Rc3+ Kd4 Qc8 Rg1 Qgg8 Rf1 Rh7 Bb4 Rg1 Nc5 e6 h1R e7 Ne6 e8N Ba5 Rg2 Rhg1 Rgh2 Rc4 b8B Rc7+ Qb7 Bb1 Rh5 Bec2 Re5 Rc6 Bd6 Rc7 Rc6 Kd3 Rh4 Nf4 Bc5 Ne6 Nh1 Ke2 Rd5 Qf7 Qg2 Qg7 Ra6 Qa3 Rb6 Qd3 Rb3 Qdg6 Rc3 Be4 Ng4 Rf8 Be1 Bg5 Bd2 Bec2 Ne3 Rf3 Ng3+
1Q1R2rb/1br1kQ1n/1r2Nn2/r3n1BR/B3N1B1/3B3R/K1bQ2qN/1n5q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 Kb3 h5 g4 h3 e4 c4+ Ka2 h2 b4 c3 e5 c2 g5 h4 g6 h3 d6 f3 d7+ Ke7 d5 a4 b6 f4 b7 a3 b5 f2 b6 f3 e6 Bg7 Ba6 f1N Bf4 c1R Bg5+ Nf6 Qd2 f2 Nc3 Qg8 d8R Rh6 Ne4 Bh8 g7 Nc6 b8Q Ne5 b7 Ng3 Bd3 f1N Nf3 Nh5 Rb1 Bd7 Rb5 Rc7 Qa7 Bc6 b8Q Bb7 Qg1 Rg6 Qg4 Ra6 Rb3 Rb6 Qg1 Qe8 g8B Qc6 Bh7 Rg8 Bf5 Qc2+ Ka1 a2 Bg4 Qc6 Kb2 a1R Qgg2 Rc1 Ka2 Rc5 Ra3 Ra5 Qg1 Ng7 Qgg2 Ne8 d6+ Kf8 d7 Nh7 e7+ Kf7 Qc8 Nef6 e8B+ Kf8 Qb8 Ke7 Rg1 h1B Nh2 Ne3 Rf1 Nd5 Rf5 Nc3+ Ka1 Qd6 Bf1 Rb2 Bh4 Kf8 Nf3 h2 Rh5 Rd5 Rc8 Qc5 d8N Nb5 Bgd7 Qa7 Neg5 Rb3 Ka2 Qf2 Be6 Na7 Ba4 Nb5 Bh3 Ke8 Nde6+ Ke7 Rd8 Rb1 Rc3 Na3 Qg1 Bg2 Bc4 h1Q Nh2 Bf1 Ne4 Bd3 Qg6 Qfg2 Bg5 Ra5 Bg4 Bc2 Rch3 Rb6 Bd3 Nb1 Qf7+
1NQ2Q1n/2nqr1k1/b7/QR3QnB/4Rb1N/nKRN1n1b/3B3n/2br1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 h5 g4 a4 d6 a3 d7 a2 b6 f3 b7 f4 g5 f2 g6+ Kg7 d5 f3 d6 c4 e5 h3 b5 h2 e6 h4 b6 h3 e7 Nh6 e8R Nf7 Qb3 Ra7 Kb4 c3 Be2 f1N Qc2 f2 Nf3 Na6+ Kb3 Nc7 b8Q Ba6 Qf5 c2 Bd2 c1B b7 Rh6 Ne1 Nh8 Rg1 h1B Re4 h2 Nd3 Bg2 Qc8 h1N b8N Bh3 Bh5 Nh2 Rg5 f1N Rg3 Qe7 d8Q Nf2 d7 Nf3 Qe8 Qd6 d8Q N1h2 Qa4 Qd7 Qaa5 Rh7 Rg5 Bd6 Qe7+ Kh6 g7 Bf4 g8B Rf7 Qec5 Re7 Bc4 Ra8 Qff8+ Kh7 Rd5 Ra7 Qf5+ Kg7 Qca3 Rb7+ Rb5 Rb6 Q3b4 Rg6 Qba3 Rg1 Qac5 Rd1 Qff8+ Kh7 Qcf5+ Ng6 Be1 Bg4 Ne5 Ng1 Nd2 Nfh3 Bf1 Ng5 Ndf3 Bh3 Nh4 N1f3 Rb1 a1N+ Kc4 Nc2 Nd3 Na3+ Kc3 Qd6 R1b3 Qd5 Bd2 Qd7 Q8f6 Kh6 Kb4 Kh7 Rc3 Kh6 Qf7 Nh8 Qfe8 Kg7 Kb3 Bg3 Qed8 Bf4 Qdf8#
r1QRbQNK/q2BR1n1/3Rn3/2B1k1r1/Br2b1r1/4r1N1/bQ6/r1b1N2R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 f5+ Kd3 c5 e4 h3 b4 h4 b6 a4 g5 f3 b7 a3 b5 f4 b6 a2 g6 h2 g7 h3 Qc2 f2 Qb3 f3 Be3 Ne7 g8N Na6 b8Q+ Qc7 b7 Rh4 Qb2 Bd7 Nd2 Be8 Re1 a1R Ne2 Bh6 Ng3 Rg4 Qc8 Nf5 b8Q Ng7 Be2 f1R Bd1 f2 Nf3 Rg5 Ba4 Rg1 Re2 f1B Ne1 Bg2 Bf2 c4+ Ke3 c3 Kf4 c2 Re3 Bb5 Qf8+ Kd7+ d6 Ke6 e5 c1R d7 Bd5 d8R Rc3 Qc8+ Bd7 Re4 Qa7 Re2 Bb3 Re4 Kd5 e6 Re3 e7 Nc7 e8B Ba2 Re7 Kd6 d5 Rg2 Rg1 h1B Rf1 h2 Bg1 Kc5 d6 Kd5 Bf2 Bb5 d7 Kd6 Bg6 Rg1 Bf5 Be4 Be6 h1R Bh3 Ra3 Bc5+ Kd5 Bf5 Re3 Bg4 Rh2 Bf5 Rgg2 Rh1 Rg1 Bg4 Rd2 Bf5 Rd4 Bh3 Rb4 Bf5 Kc4 Ke5 Nce6 Kf6 Kd5 Kf7 Rh5 Kg6 Rg5+ Kh7 Bc6 Kh8 Bb5 Ne2 R1g4 Ng3 Bc6 Qc1 Ke5 Qb2+ Kf4 Rde8 Bb5 d8R Bbc6 Rd4 Ke5 Red8 Be8 R4d6+ Rc3 Qf7 Rh5 Rc7 Nf4 Bfd7 Nfe6 Bdb5 Rf5 Rcd7 Bc1 Qf8 Rfg5 Rc7 B4g6 Re7 Be4 Qg2 Rcb3 Bd7 Re3 Qb2+
NnB5/BN2bR1Q/5BQK/1q2nQ2/1R6/2bnkbrR/Nb3n2/1nR3rn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 Kd4 b4 h5 d6 f5 g5 a5 b6 c5 g6 c4 b7 a4 d7 a3 b5 a2 g7 h3 e5 h4 e6 h2 b6 h3 e7 c3 e8Q c2 Ba6 Nh6 g8Q Qg5 d8B Be7 Na3 Nf7 Qh7 Rg8 Nc4 Kd3 Ba3 c1B Bc5 Bb2 Rc1 a1B Ne2 Ra7 Rf1 h1N Nc3 h2 Na2 Nf2 Qe1 h1N Qe6 Ra8 Qb5 Bc3 Qeg6 Bab2 Bd4 Bd7 Qa5 Bc6+ Qd5 Nd7 b8R Bb7 Rc8 Nb8 Rc5 Bc6 Bc8 Ra3 b7 Rb3 Nb6 Qh5+ Kg2 Ne5 Na8 Qe2 Kh2 f3 Ra5 Rg7 Ra3 Rg8 Qa5 Ke4 Qb5 Nfd3+ Kh3 f2 Ba7 Kf4 Qa5 Bf3 Qd5 Rg7 Qdf7 Ke4 Qff6 Rg8 Kh4 Rg7 Kg5 Rg8 Rg1 f1N Kh6 Nfg3 Rgf1 Nhf2 Qff7 Ngh1 Qf8 Ne1 d4 Qb5 d5 N1d3 d6 Kf4 d7 Rg7 Nb6 Ke3 Qff6 f4 Qff5 Bd6 Bg5 Be7 d8N Rg8 Bf6 Rg7 Qgh5 Rg1 Qh5g6 Bg4 Ra6 Be1 Qh8 Kf3 Qfg5 Nc5 Qgg8 Qe8 Nd7 Nbc6 b8R Rd3 Rb3 Nb8 Nb6 Qb5 Qg8g7 Bb4 Rfd1 Nh3 Qhh7 Ke2 Qg7g6 f3 Ra4 f2 Raa3 f1N Bg7 Nd2 Rf1 Nb1 Rf7 N3f2 Nb7 Bd2 Rb4 Rf3 Rd3 Bdc3 Re3+ Kd2 Q5f6 Ncd3 Qff5 Bh5 Bf6 Rh3 Rg3 Bf3+ Rh4 Ke3 Na8+ Kd2 Rg4 Rhg3 Rh3 Ke2 Rd4 Ke3 Rb4+
1bQ1RN2/2n1r1Qn/2r1BR1R/1RN2r1k/1N5r/K2bbq1p/nBr3Q1/4B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 a5 e4 h5 d4 f5 Kd2 Kf7 Kc2 Kg6 Kb3 c5 e5 a4+ Ka3 f3 b4 f4 d6 c4 d7 c3 g5 f2 d5 f3 e6 h3 d6 h4 b6 h2 b7 c2 e7 h3 e8R Bg7 b5 Ra7 b6 Ne7 Bc4 f1R Qe2 f2 Bb2 c1B Nd2 Ng8 Be6 Rh7 Nb3 Qf6 d8Q Rh4 d7 Na6 b8B Nc7 b7 Be3 Nf3 Kh5 g6 Rc1 Nfd4+ Qf3 Nc6 f1R Nb4 Rc6 Qg2 Nf6 Nc5 Nh7 Rg1 Be5 g7 h1R g8Q Rh2 Q8g7 Rf2 Raf1 Rc2 Qh1 Rhf2 Rg6 B5f4 Qg2 Bg3 Qdf6 Be5 d8N Bg3 Ka2 a3 Qc3 Bh2 Kb3 a2 Qc4 Bd6 Qa6 a1N+ Ka3 Ra8 Ba7 Nb3 b8R Nc1 Rb5 Na2 Qb7 Bd7 Qc8 Rb8 Bb6 Rb7 Ba5 Bdf4 Nbd3 Bh2 Be1 Bg3 Nb4 Bgf4 Bd5 Bf5 Nde6 Bd3 Nf8 Na6 Be5 Re7 Bb2 Bb8 Be6 Nc7 Ba1 Qd1 Bb2 Rf5 Rf3 Re5 Rf4 Qf3 Rff6 Rf5 Rh6+
1n1B3N/Q1BR4/3n1r2/K2NBB1r/1Np1qQ1b/2R1Qr2/bb5k/3nrRr1 b - - 0 1 illegal: No possible last move, all moves rejected
1R4QR/1bN2Bn1/2nr4/3QpQ2/bBKB1bb1/Nr3n2/1rN1Rk2/1q2R2b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 b4 Ke5 g4 a5 c4 d5 c5 h5 c6 a4 f3 h3 c7 h4 g5 h2 b6 h3 b5 a3 f6 a2 f7 Nc6 g6 Bg4 c8R Bh6 f8B Rb8 b7 Bf4 b6 Nf6 g7 Nh5 g8Q Ng7 Na3 e6 Rb1 a1N Rb3 Nc2 Bb2 Qh4 Be7 Qe1 Ne2 Kf5 Rg1 h1B Bb4 h2 Bh3 e5 Rf1 Qg3 Re1 Qg1 Bf1 Rh3 Ba1 Ra8 b8N Kg5 b7 Kh4 Na6 Rb8 Qd2 Bg2 Nc7 h1B Ng3 Rh2 Nf5+ Kh3 Ne3 Kg3 Qd1 Kf2 Rf8 Rd8 b8R Rd6 Qh7 Rh3 Rh8 Rg3 Qf5 Rh3 Kd2 d3 Kc3 d4+ Kc4 d2 Bac3 d3 Bd4 Bg5 f4 Rf3 Qb1 d1R Qa2 d2 Be2 Rb1 Bd3 Na1 Nec2+ Re3 Be4 d1B Bd5 Rb2 Rc3 Nb3 Bf7 Kg3 Rd3 Rf3 Rde3 Kf2 Qg6 Rg3 f5 Bf4 f6 B2f3 Qf5 Nd2+ Kd3 Bfg2 Qd5 Nf3 Kc4 Rh3 Bg8 Rg3 f7 Rh3 f8Q Rg3 Na1 Ba4 Bf7 Qf1+ Kc5 Qd3 Qg8 Qb1 Kc4 Bf1+ Kc5 Ba6 N1c2 Bb7 Kc4 Rg1 Rc1 Re1 Rd1 Re2 Re1 Rb3 Na1 Ra2 N1c2 Rab2 R3e2+
N1bBbN1K/6Qp/NBq1Rr1n/n2R3R/7Q/1k1r2rB/5n2/rRb1Q2r b - - 0 1 illegal: No possible last move
B2B4/Q1nk2Kb/4qN2/5N1r/2Rn2Qr/2rQN2R/Rb1p2q1/BrrqR3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 e5 Kg4 a5 Kh5 h3 g4 d3 c4 h6 Kg6 h2 f4 a4 b4 e4 c5 d2 f6 d4 g5 d3 f7+ Kd7 c6+ Kc7 b6+ Kd6 b7 e3 f5 e2 b5 e1R b6 h5 f6 h4 c7 a3 Ra2 h3 Nf3 Qd7 Nc3 Ke6 Bg2 Bd6 f8Q Bf4 f7 Nh6 Nd5 Re4 Qb4 Qe7 f8R Nf5 Bb2 Kd7 Ne3 Na6 b8Q Nd4 b7 Rh5 Nh4 Be5 Re1 h1Q Ba1 h2 Nhf5 Reh4 Qa7 Qe6+ Rf6 Qg1 b8B h1R Kg7 Qh2 Bb7 Qg2 g6 Rg1 Qg4 d1Q Qc3 d2 Qd3 Rgh1 Bd5 Bb7 c8R Nc7 Bf3 Be4 Rh8 Bd6 Rff8 Bb4 Rc8 Bc3 Qb7 Ra5 Qa7 Rc5 Rh6 Bb2 Rh7 Bb7 Rhh8 Ba6 Ba8 Rc3 Rh7 Bb7 Rh6 Nb5 Bd6 Nc7 Be7 Be4 Bd8 Rf1 Kh8 Rfh1 g7 Rg1 g8N Rgh1 Ng3 Bh7 Kg7 Rf5 Rb8 R4h3 Re2 Qa4 Rb4 Rhc1 Rc4 Qd1 Re1 Ra5 Rh4 Rh5 Ngf5 Rh1 Rh2 Rb1 Rh4 Rc2 Rh2 Bc1 Rb2 a2 Rh4 Rc3 Rc2 Ba3 Rh2 Rc1 Bb2 a1R Rh4 Rab1 Ba1 Rh2 Ra2 Bb2 Nf6+ Kc8 Rh3 Rh1 Rf3 R1h4 Ne8 Kd7 Rg3 Qee4 Rh3 Qe6 Nf6+
N3B1Kn/1q1r2br/7q/1B1Q3N/2R1br2/q1QRQ3/p2BkqN1/Q1q1nR2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 c5 g4 a5 b6 h5 b5 a4 e4+ Kb4 b7 c4 g5 a3 b6 c3 d6 h3 d7 h2 Ke6 c2 Kf7 f3 g6 f4 g7 a2 e5 h4 e6 h3 e7 f2 e8B f3 d5 Rh4 d6 Rh7 Nc3 Nc6 b8Q Bb7 Qa7 Nd4 Nb5 Be4 b7 Qa5 d8R Ne7 b8Q Ng6 d7 Qa3 Qe5 Nh8+ Kg8 Rb8 Bg5 c1Q Nc7 Kc3 Bb5 f1R Na8 f2 Nf3 Rb7 Nh4 Rc7 Qd5 Nf3 Ng2 Ne1 Rg1 h1Q Qe3+ Bd3 Rb1 h2 Rb4 Ra7 Q1f3 Kc2 Qh3 Kd1 Rc4 Rb7 Qde5 Be4 Qa1 Ra7 Qec3 Ke2 Bd2 Rb7 Rb8 Ra7 d8Q Rc7 Qd5 Rd7 Nh4 Qf3 Ng2 h1Q Rd8 Qh2 Qhe6 Qh6 Rh1 Rg1 Qee5 f1Q Qg3 Q1f2 Qf4 Rf1 Rg1 Qfa7 Qfe3+ Kd1 Rh1 Qff6 Rg1 Rf4 Rf1 Qb7 Qe6 Rc7 Rd3 Rd7 Qd6 Qfh4 Qd5 Qf2 Rcd4 Qa5 Ra4 Be7 Rc4 Bf6 Kf8 Qg6 g8N Qa3+ Ne7 Qh5 Kg8 Bg7 Nf5 Qh6 Ng3 Qc5 Qed4 Qa3 Nh5 Ke2 Qe3+
2Qr1n2/3nr3/B1RB1Q1b/p2q2Rk/N3rqN1/3B3r/q1R1R1r1/N2KQ2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 c5 e4 f5 d4 Kf7 g4 Kg6 b6 a5 g5 h5 e5 h3 e6 c4 e7 c3 e8B+ Kg7 b5 h2 g6 Kh6 g7 c2 d6 h4 d7 h3 b7 Na6 b8N Qb6 d8R Qg6 d5 Rh7 d6 Qf7 d7 Nf6 g8R Bb7 b6 Qa2 Na3 Re7+ Ne2 Nc5 Bg6 Ne6 Rc8 Bg7 d8Q Nf8 Rc7 N6d7 Rc6 Re4 Rg1 h1R Rg2 h2 Qf6 Ra7 Bb2 c1R Nc2 f3 Be5 f4 Bd6 f2+ Kd2 f3 Qe1 Rg1 Nc3 h1Q Ba6 f1Q Re2 f2 Na4 Rg2 Rb1 Ba8 b7 Qh5 Rb2 Qhd5+ Nd4 Rc4 Rc2 Rc3 Kd1 Rh3 Bh7+ Kh5 Bf5 Nb6 Nd7 Bh6 Ne5 Nbd7 b8Q Rc7 Rg6 Rc8 Ng4 Rd8 Qc8 Re7 Red2 Qfc4 Nb3 f1R Na1 Rf4 Bd3 Rfe4 Re2 Qcd4 Nf2 Qe3 Rg4 Qf4 Rg5+ Kh4 Rc7 Qdb3 Rg3+ Kh5 Qd4 Rg1 Ng4 R4e5 Nh2 Bh1 Rc6 Re4 Qf6 Rg2 Rg8 Qf7 Ng4 Qfd5 Rg5+
3nKN1n/qbB4b/3QQRpQ/Rkq5/1q3rQ1/R3r1B1/1N1b2b1/1B1N2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 c5 d4 f5 b4 a5 e4 g3+ Kf3 c4 h5 g6 e5 g2 b6 a4 d6 Kc6 d5+ Kb5 b7 a3 h6 a2 d7 Bg7 h7 Ra5 d6 Nc6 b8Q+ Bb7 e6 Nh6 e7 Qc7 d8R Re8 h8Q Nf7 d7 Bb2 Rh3 Kb6 b5 c3 Bd3 c2 Nd2 Bd4 Ne2 g1Q Nc4+ Kc5 b6 Bf2 Qh6 Nh8 Nb2 Qd6 Nc3 Ra4 Bd2 c1B Bb1 Qd4 Be1 Qb4 Rc8 Bd4 d8N Bd2 Bg3 B4e3 Qe2 Qc1 Ncd1 Bg1 Qe4 Kb5 Ne6 Nd8 Qd6 Qc6 Nf8 Qcc5 Ke2 f3+ Kd3 f2 Qg4 f4 Rc6 f3 Rh5 Bc8 b7 Be6 b8B Bg8 Bc7 Bh7 Nc4 f1B+ Ke4 f2 Rh3 Qb6 Ke5 Q6c5+ Kf6 Bg2 Ncb2 f1B Rh5 Bd3 Rd5 Bf5 Rd3 Bfe4 Ra3 Nb7 Ke6 Nd8+ Kd7 Bd5 Qdf4 Bde4 Rf6 Bb7 Qe5 Qb3 Qd5 Rf4 Qd6 Qbb4 Ne6 Rf8 e8Q Rg8 Qf7 Re8 Nf8 Re2 Qfe6 Re3 Bc2 Bc3 Ke8 Bd2 Rc1 a1Q Bb1 Qa2 Rcc3 Qa1 Ra6 Qaa5 Ra3 Qab6 R6a4 Qa7 Ra5+
n1N1qqN1/3Q2pN/kR1q2b1/q2brR2/R3QB1K/4r3/4B1Qb/1B1n1N1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 c5 e4 Kc7 h4 Kb7 d6 f5 b6 a4 d7 a3 d5 a2 h5 c4 d6 c3 b5 f3 Kg3 c2 e5 f2 h6 Na6 h7 Qf6 d8Q Qg6 d7 f4+ Kh4 f3 e6 g3 e7 g2 e8B Ba3 Qe1 Qe4+ Bf4 c1Q Nd2 Bb2 Be2 f1Q Qg5 f2 d8Q Ne7 Ngf3 g1Q Bg6 Be5 Qd7+ Nc7 Qg2 Nd5 Ng5 Re8 h8N Qa3 Nhf7 Ra5 Nh7 Qd6 Nh6 Ne3 Ng8 Nd1 Rh3 Ra3 Rf3 Re3 Bf5 Qec6 Bb1 Re7 Bg5 Bh2 Rf5 Qh1 Bf4 Qfg1 Nf1 R7e5 Qb4 Qf8 Qbe4 Qe8 Qd6 Be6 Qd8 Bd5 Qd7 Kb8 b7 Ka7 b8N Qd6 b6+ Kb7 Qb5 Na8 Nc6 Qef8 Nce7 Qe8 Ng3 f1B Nc8 Qf2 Qba4 Qef8 Qe8 Qe1 Qe6 Qa5 Qe8 Qb5 Qd7+ Ka6 b7 Rb3 b8R Re3 Bg4 Bd3 Be2 Qa5 Rb5 Qad8+ Rf6 Qde8 Nf1 Bc2 Qc4 Bf5 Qce4 Bg6 Rf5 Bb3 Bbd3 Bc4 Rc1 Be6 Rc4 a1Q Bb1 Qa5 Ra4 Bd5 Rb6#
nBr1k3/1Kp1b2q/1N2r2N/3QRQ2/b1n1Qr2/r1N2B1R/1BnRBr2/7q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 Kf3 a5 b4 h5 g4 a4 e4 a3 d4 h3 e5 h4 d6 h2 b6 a2 d5 h3 e6 Ba6 b5 Qh4 e7 Qe1 d7+ Kf7 d8R Qa5 e8Q+ Kg7 d6 Nc6 g5 Qe1 b7 Qb4 b8N Nge7 d7 Nd5 g6 Nb6 Be2 Na5 Qe4 Be7 Qdd5 Nac4 Nc3 Qb1 Bb2 Bc8 Re8 Ra3 d8Q Na8 b6 Bd7 b7 Ba4 Nd7 Qc2 Re1 a1N b8B Qb1 Rf8 Nc2 Nb6 Rh6 Q8d7 Rh8 Rf6 Rc8 Re6 Kf8 g7+ Kf7 g8B+ Kf8 Kf2 f3 Re5 f4 Qdf5+ Ke8 Be6 N4e3 Rd1 Nc4 Kf1 f2 Nf3 Ra1 Ng5 Ra3 Rg1 h1Q Nf7 h2 Nh6 Bf8 Bf3 Be7 Ke2 f1R Kd3 Rf2 Be2 f3 Rd2 Qf1 Rg3 Qh3 Nf7 Qh7 Rh3 Qb1 Nh6 h1R Bg8 Rg1 Be6 Rg6 Bg8 Qh1 Be6 Ne1+ Kd4 Rf6 Bg8 Rd6 Kc5 Nc2 Qdd3 Rg6+ Qd6 Rf6 Bd5 Re6 Bb7 Rh2 Kd5 f2 Kc5 f1R Bd5 Bb3 Kc6 Ba4+ Kb7 Rhf2 Qc5 Bd7 Bc6 Rf4 Qcd5 R1f2 Ba4 Bb5 Bb3 Ba4 Bf3 Ne1 Bbd1 Nc2 Bde2
2KN3N/rp3Q2/2NbBrq1/1R4nk/n1Qr3R/2R4B/b2rqn2/QrBB4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 f5 Kf3 Kf7 g4 Kg6 a4 c5 d4 h5 e4 c4 a5 h4 a6 c3 e5 c2 e6 b3 d6 h3 e7 h2 e8Q+ Kh7 d7 b2 a7 Bb4 d5 Qf6 d8Q Bd2 g6+ Kh6 d6 Qh4 g7 Be1 d7 Qf6 g5+ Kh7 g6+ Kh6 Bh3 Bb4 Qf7 Na6 Ra5 Bd6 Nd2 b1R Nb3 Kh5 Qc7 Nh6 g8B Nc5 d8N Na4 g7+ Qg6 Ne2 Be6 Nbd4 Ba2 N4c6 Rh7 Qc4 Nf7 Rb5 Rh8 Bh7 Re8 g8B Re4 Qe1 Rd4 Qec3 Rd2 Qa1 Rb4 Nc3 Rb1 Nd5 Rd4 Nde7 Ng5+ Ke2 f3+ Ke3 f2 Be6 f1R Bhg8 Rc8 a8R Rd2 Raa5 Ra8 Rc5 Ra7 Rab5 Rf4 Qd7 Rfd4 Qc7 Qg7 Ng6 Qf6 Nh8 Qg6 Re1 h1Q Qf7 Qg2 Rh1 Qg4 Qd3 Qg2 Rc3 Qh2 Qc4 Qg2 Ba3 c1N Bh7 Nd3 Bc1 Rh4 Bg8 f4+ Kd4 f3+ Kd5 Qe2 Bh7 f2 Bg8 Bh2 Bh7 Rf4 Kd6 f1R Kc7 Rd4+ Kc8 Bd6 Bg8 Rf6 Beg4+ Kh4 Be6 Nf2 Bh7 Qg8 Bc2 Qg6 Bd1 Kh5 Rg1 Ra6 Rg4 Ra7 Rh4+
2n2NRq/BN2R3/4Q1K1/brQn3Q/Q7/2r1B3/bkrpB1nq/Rn2N1b1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 e5+ Kg4 h5+ Kh3 a5 b4 e4 c4 Ke5 g4 d3 f4+ Kd4 c5 a4 b6 e3 c6 a3 b7 e2 b5 e1N c7 a2 f6 d2 f5 Nd7 b8B Nb6 g5 Be6 c8R Bb4 f7 Ba5 f8N Nf6 g6 Ng2 Bd6 Rb8 g7 Bg8 Qc2 d1N Na3 Nc3 Nc4 Nb1 Qa4 Kc3 Be3 d4 Nf3 d3 Ne1 d2 Be2 Nfd5 f6 Rb7 Ra8 Nc8 f7 Rh6 Be7 Rc6 Nd6 Kb2 b6 Rc3 Rg1 Rbc7 b7 Rc2 Bf6+ R7c3 Ra7 Qc7 Bd4 Qb8 Kh2 h3 Kg3 h4+ Kg4 h2 Kf5 h1R Kg6 h3 Bb6 Qc7 b8Q h2 Nb7 Qf4 Bbd4 Qh4 Qe5 Qh8 Rf1 Rg1 Qh5 h1Q Ra8 Qh3 Ba7 Qh2 Rf4 Rf1 Re4 Rf4 Re7 Rb4 Nh7 Rb5 f8Q Be6 g8Q Na3 Rd1 a1B Qff5 Nb1 Nf8 Nf6 Qc5 Ba2 Qe6 Nd5 Qad4 Kb3 Rb8 Bb2 Rc1 Ba3 Qa4+ Kb2 Qc7 Bd6 Qc5 Bg3 Ra8 Bf2 Rd1 Bg1 Rc1 Na3 Ra1 Nb1 Nh7 Ncb6 Rg8 Nc8 Nf8
Q1Qnr3/2Rr4/N1rqNB1Q/n2qk1n1/bBb3Bb/1RN1K3/1r1p1B2/1R6 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 c4 Kf6 b4 a5 g4 d5 f4 e5 b6 h5 b7 d3+ Kf3 e4+ Kf2 e3+ Kf3 d4 c5 a4 b5 h3 c6 a3 b6 a2 c7 h4 Nc3 d2 Nge2 h2 Bh3 d3 Rb1 a1R Nd4 e2 Ne6 e1N+ Ke3 Bd7 c8Q Nc6 b8N Rh6 b7 Nge7 Na6 Ra2 b8R Nf3 R8b3 Ng5 Qe2 d1B Qd2 Na5 Bb2 Bf3 Rhc1 h1R Ba3 Bd5 Bb4 Ba4 Bc5 Kf7 f6 Rb2 f5 Nec6 Qh2 d2 Be7 Nh7 g5 Qd6 Bg4 h3 Qf4 h2 g6+ Kg8 g7 Kf7 Rc2 Ng5 Rcc1 Nd8 g8Q+ Ke8 Qh8 Kf7 Qe4 Rg6 Qh6 Bc4 Qeb7 Ra7 Qba8 Rd7 Rc2 Rg1 Rcc1 h1Q Rc2 Qb4 Bc5 Qd5 Ba7 Ke8 f7+ Ke7 f6+ Kd6 Bb6 Bg7 f8B+ Ke5 f7 Bf6 Be7 Qbd6 f8B Rc1 Bc5 Rg8 Ba7 Qb8 Bb4 Qbd6 Be7 Re8 Nd1 Bf1 Rc7 Rc6 Nc3 Bc4 Kf2 Ne4+ Kf3 Bh4 Bf2 Ng5+ Ke3 Rg8 Bf3 Rf8 Bg4 Re8 Bf6#
3R3Q/4Q1qQ/1qk1b1n1/2B3NN/r1Bb2rN/3K2Rn/Rqp2qRn/1Br5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 e4 f5 b4 a5 g4 c5 b6 a4 b7 a3 b5 a2 b6 f3 d6 h3 d5 f2 e5 h4 g5 f4 g6 c4 g7 h2 Qh5 c3+ Kd3 h3 Qh7 c2 Be3 f3 Nd2 Ra6 Bc5 Ra4 Ne4 Nc6 b8R Nf6 g8B+ Bg7 b7 Ne7 Ng5 Nh5 Be2 f1Q e6+ Ke8 Ra8 f2 b8Q Ng6 e7 Kd7 e8N Qb6 N1f3 Qg2 Rae1 f1N Rg1 h1Q Nh4 Qf2 Rg2 Nh2 Reg1 a1Q Ra6 Rg4 Ra2 Qab2 Bf7 Be5 Ng7 Bd4 Rg3 Rf8 R1g2 Qha1 Bg8 Rff4 Bf7 Kd8 d7 Re4 Qa8 Kc7 d8R Be6 Qa3 Qag1 d6+ Kc6 Qa7 Qga1 Qe7 Qag1 d7 Nhf4+ Kd2 Be5 Nh5 Ra4 Rf8 Bd4 d8Q Qb8 Rh8 Qe5 Qb8 Qg7 Rd8 Qgb1 Qe5 Qb6 Q5f6 Q1b2 Bg8 Qh6 Qfh8 Qg7 Bf7 Bd7 Bb3 Be6 Qef8 Qa3 Rb2 Nf3+ Kc1 h2 Ba2 Nh3 Bb1 Qc3 Ra2 h1R+ Bf1 Nh2 Qe7 Ng1 Be2 Qcb2+ Kd2 Nh3 Rd7 Qff6 Rd8 Rc1 Bc4 Qf2+ Kd3
q2B1Q1n/q1Q5/bn1B1KB1/bk1R3N/7r/2BNr1np/1r2bb2/Q1R2N1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Kd6 e7 c3 e8Q a3 b6 h4 b5 a2 b7 h2 b6 c2 g6 h3 g7 Nh6 g8N Nf7 Nf6 Ra3+ Bd3 Nd7 Nd2 Rh4 Ne2 Nh8 Bb2 c1B Nf1 Bd2 Nc1 Ba5 b8B+ Qc7 b7 Nb6 Rb1 a1R Nh5 R1a2 Bc3 Rb2 Ra1 Bg7 Qf8+ Kd7 d6 Kc6 Bb1 Kb5 d5 Bd4 d7 Bf2 d8R Qe7 Bc7 Rab3 b8B Ba6 Nd3 Ra3 Bd6 Qa7 Bbc7 Rab3 Bc2 Ra3 Rc1 Rab3 Ke2 f3+ Kd2 f4 Rd7 Bc5 Bd8 f2 Ke2 Be3 Kf3 Bd4 Ke4 f3+ Kf5 Be3 Nd2 f1N Kf6 Ng3 Nf1 f2 Ne5 Rbb4 Bg6 Rbe4 Nd3 Re8 Rc2 Bc5 Qa1 Re2 Rc1 Re3 Bde5 Bd4 d6 Bc5 Re7 Bd4 d7 Bc5 Bec7 Bd4+ Re5+ Bc5 Rg1 h1Q Bd6 Qc6 Rh1 Qca8 Nd2 f1B Rd5 Be2 Nf1 Qc7 B8e7 Qcb7 d8Q Qba7 Qc7 Ree4 Rf5 Re5 Bd8 Bf2 Nc5 Ree4 Rd5 Re3 Nd3+
b1Q1NK2/2N2b2/2n1NB2/3B1BRn/1n1qQq1n/2p3q1/k2r1Q1R/2Rr2bN b - - 0 1 illegal: No possible last move
2K3n1/6B1/k1N1RQB1/1qbN1R2/nB1p4/3bR1bb/2q1N1QR/Q1qrn2r b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 c4 Kb6 f4 e5 b4 a5 c5+ Ka7 b6+ Kb7 b5 a4 Ra3 e4 Bd2 e3 Bd3 e2 Rh2 e1B Bb4 h6 Ne2 h3 Nbc3 Qf6 Qa1 Ra6 c6+ Ka8 b7+ Ka7 c7 Nd7 b8R Bg3 Rb6 Bc5 Re6 Qe5 f6 Rd6 f5 Nb6 f7 h5+ Kg5 h4 f8Q Ba6 c8R Rh6 Be4 d3 Qf6 d2 Rf8 d1Q Rb3 a3 Bd3 d4 Nd5 Na4 b6+ Kb7 Be4 a2 Re3 Bd3 Kg4 Ka6 b7 Rc6 b8N+ Kb5 Rf7 Qc2 Rf8 Rc8 Nc6 Ka6 Kg5 Rh8 Kg6 Rh5 Kf7 Rc7+ Ke8 Rh6 Qh1 a1N Kd8 Rb7 Kc8 Rhh7 Ba5 Rb1 Bb4 Rd1 Qe1 Qd2 Qh1 Nc2 Rf7 Ne1 Qf1 Bf4 g4 Qc2 g5 Bg3 g6 Rh8 g7 Rh7 Rf2 h2 Rg2 h1B Rh2 h3 Rf8 Nh6 g8Q Bf3 Qg4 Ng8 Qg2 Rh8 Qf4 Bg4 Qff1 Nf3 Qe1 Rh7 Qc3 Ne1 Qa1 Rh6 Qg5 Rh4 f6 Rh6 f7 Qb8+ Kd7 Qb5 Bg6 Bgf5 Kc8 Rh4 Rh1 h2 Qf6 Rh5 Re8 Rh6 f8B Bh3 Bg7 Rh8 Rf1 h1Q Rf5 Qg1 Ref3 Qe3 Rf2 Qec1 Re3 Bg4 R8e6 Rh1 Qg1 Bh3 Rh2 Be7 Qf1 Bc5 Qg2
q7/3KBQr1/1Qn3B1/bB1bN1Rp/Nq1b2QR/Bq2k3/3r1Rn1/2q1rN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kc4 g4 c5 e4+ Kb4 b6 f5 d6 a5 b7 a4 d5 f3 g5 f2 g6 a3 g7 a2 d7 h3 Ke6 f4 d6 h2 e5 f3 Nd2 c4 Ne2 Kc5 Nc3 Kd4 b4 Nc6 b8R Qh4 b5 Bb7 d8Q Ra7 d7 Nh6 g8Q Ke3 b6 Nf5 Ba3 Bb4 Qf7 Ba5 Na4 c3 Bb5 f1Q Rc8 f2 Qg4 Qg1 Rf1 a1B Qdf6 c2 d8B c1R Bde7 Re1 Kd7 Bd4 e6 Qgg3 Rg8 Rh7 Rg5 Rg7 Q6g6 Ba8+ b7 Qgh3 Rfg1 f1Q Rg2 Qc4 Qgf6 Qc1 Rf2 Ra6 b8N Rb6 Rhf1 h1Q Q6g6 Qe4 Rh1 Qhf3 Rhh2 Qhh3 Qh6 Nh4 Qhf6 Ng2 Q6g6 Qhg3 Rh4 Qeb1 Qh6 Qb4 Qhg6 Nd8 Nc6 Qb8 Ne5 Bd5 Qb1 Rc6 Qb2 Rc2 Qb1 Nc6 Qb2 Qf4 Qb1 Qa8 Nf1+ Ke4 Qb3 Rd2 Qb2 Qbc3 Qb4 Qd3 Qc5 Qdc3 Qb6 Qb3 Bf6 Be3 e7 Bc5 e8B Be3 Bfe7 Bc5 Qff5+ Kd4 Nh2 Ke3 Bg6 Qfb4 Qf7 Bd4 Nf1+
Qrqb2bN/6nk/B2nqn2/6p1/1B3QNQ/r1b1n1K1/1rN1B3/R1B1R2R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 Kf7 d4 Kg6 e5 c4 h5+ Kh7 d6 g5 d7 c3 e6 f3 e7 f4 e8B c2 b6 a4 h6 a3 b7 a2 d5 Qb6+ Qd4 Be7 d8B Ra3 d6 Nc6 b8R Ne5 b5 Nf7 d7 Nf6 Bc7 Nd6 d8Q Be6 Nh3 Bg8 Bh5 Qa6 Qf8 Bd8 b6 Qc4 b7 Qe6 Ba5 g3+ Kg1 g2 Kf2 g1N Ba6 Ne2 Bb4 Ng3 Rc8 Ngf5 b8Q Ng7 Qa8 Ba5 Re8 Bd8 Kg1 f2+ Kg2 f1N Bhe2 f3+ Kf2 Ngh5 Qh4 Ne3 Qf7+ Ng7 Kg3 f2 Qf8 f1Q Nf2 Qc8 Ng4 Qff5 Qf7 Qfe6 Qc7 Rb3 Na3 Rb2 Qcb8 Nf7 Qf4 Nd6 Bcd2 c1R Nc2 Rd1 Bc1 Rd3 Re7 Kg6 h7 Ra3 Rb1 a1B Nh6 Rbb3 Re8 Bc3 Ra1 Rb2 Re7 Bf7 Re8 Rf8 h8N+ Kh7 Re7 Bg8 Rd7 Nde8 Rdd1 Nd6 Rde1 Rf7 Qhg4 Rb7 Qh4 Rb8 Ng4+
K1nb2n1/2Q1bb1N/RR1B1rqB/2p2N1B/1RqQ1r2/6bB/r2Q3q/3k1N2 b - - 0 1 illegal: No possible last move
3Qb1r1/nqR5/3BR3/NBp1Q1q1/N2NQ3/5rb1/KBn1qnR1/4kNnb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 g4 f5 e4 c5 b6 f3 g5 f2 g6 f4 g7 h3 b7 f3 Qc2 a4+ Ka2 h2 b4 a3 b5 h4 b6 h3 Nc3 Ra4 Bb5 f1N Nge2 f2 Bb2 Ng3 Rhe1 Nh6 g8R Nc6 b8N h1B b7 Na7 Nc6 f1Q Na5 h2 b8N Rb4 Nbc6 Bd7 Na4 Be8 Qb1 Qg5 e5+ Kc7 e6 Kd6 e7 Rb3 Qf5 Ng4 Qe4 Nf2 Rad1 Bg7 Rd2 Bf6 Rg7 Be5 Rh7 Rf3 Rc2 Nf5 Ng3 Qe2 Nf1 Bg3 Rf7 Rg8 Qe5+ Kd7 d6 Nh4 d5 Ng6 Nb7 Nf4 Nba5 N4h3 Rd2 Ng1 Nd4+ Kc8 Qe4 Kb8 d7 Kc7 d8B+ Kd6 Qg4 Ke5 d6 Kd5 d7 Ke5 Qh5 Ke4 Rg7 Kf4 Qh7 Kg4 Qe4+ Kh3 Bc7 Kg2 Ka1 a2 d8Q Qd3 Bd6 Qc4 Ba3 Qe2 Kb2 a1N Ka2 Nc2 Bb2 Qd1 Re3 Qe2 Qe5 Nd1 Rh7 Kf2 Rf7 Ke1 Rg7 Bc6 e8Q Nf2 Qg6 Be8 Rc7 Bg2 Qgf5 h1Q Qfe4 Qh7 Re7 Bh1 Re6 Rf6 Rf3 Rff8 Rf7 Qhg7 Rd7 Rf3 Rc7 Qd7 Nh2 Qc6 Nf1 Qb7 Nc4 Nfh3 Rh6 Qee3 Rg2 Qe2 Re6 Nf2 Na5
NK1nB3/3qQ1rR/1BN4p/1Q2r2R/r2n3q/N1q2b2/q1NRB1kn/3Q2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 a5 b4 f6 d4 f3 g5 f2 b6 h3 g6 c4 g7 c3 b5 h2 b7 c2 b6 a4 Ra2 a3 Be3 c1N Nf3 h6 Ne1 Bg4 Nc2 Nc6 b8N Rh7 b7 Ra4 Nd7 Nb3 Nb6 Qd7 Na8 Nd8 b8N Bh5 Nc6 f5+ Kf4 Nf6 g8Q Bg4 Qg5 Bf3 Ra1 a2 Nba3 Ng4 Rb1 Nc1 Rb7 a1Q Ra7 Re7 Rb7 Re5 Rc7 Qc8 Rh7 Nb3 Qh5 Be7 Qe8 Qc3 Qh5 Kd7 d6 Ke6 d7 Kd5 Qg5 Bc5 Qh5 Nf7 d8Q+ Qd7 Qe7 Nd8 Qhe8 Nb7 Qb8 Nd8 Qb7 Ba7 Qb5+ Bc5 Kg3 Ke4 d5 Ba7 Bb6 Nd4 d6 f4+ Kh3 Qf5 d7 Qe6 e3 Qa2 Be2 f1R Kh4 Rg1 Kh3 Nb7 d8R Rg2 Rd6 Nd8 Kh4 Re6 Kh5 Re5+ Kg6 Rg1 Kg7 Rg2 Kf8 Rg3 Re1 h1Q Ke8 Qh4 Kd7 Nh2 Kc8 Rg7 Rd7 Bh5 Rf1 f3 Rh1 f2 Rd5 f1Q Rd7 N4e6 Rd2 Nd4 Kc7 Qff7 Kc8 Kf5 e4+ Kf4 Kc7 Kg3 Kc8 Rd5 e5 Bf3 e6 Re5 Kc7 Kg2 Kc8 Ng4 Rh3 Nh2 Kc7 Qg4 Rh5 Qff4 Qd7 Qfg5 e7 Q5h4 e8B Qf5 Ba5 Bc5 Qe7 Qd7+ Kb8 Nb3 Qd3 Bg1 Qb5 Nd4 Bb6
nr1nQR2/B3K1N1/2rr2p1/n1q1k3/BN2bB2/1Q4q1/3Q1Rr1/R1NR1bb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 f5 e4 a5 h4 c5 b6 g3+ Kf3 g2 h5 g6 b7 c4 e5+ Kd7 d6 Ke6 d7 c3 b5 c2 b6 a4 h6 a3 h7 a2 Nc3 Nh6 Nd5 Na6 b8Q Nc7 b7 Ra6 Qd2 Qe7 d8R Na8 Rh2 Nf7 Ne2 g1Q Rf2 Qc5 Nb4 Rd6 Rd7 Rg8 h8Q Nd8 Rf7 Be7 Rf8 Bh4 Bg2 Bg3 Bh3 Bh2 Bg4 Qe1 Bh5 Bg1 d5+ Kd7 e6+ Ke7 Bb2 c1R Be5 Bd7 Bg4 Bc6 Qh3 Rc2 Nc1 Rh8 Qg3 Rh2 Qc8 Rg2 b8B Rc4 Ba7 Rc2 Rb1 a1N Bh3 Nb3 Ra1 Na5 Qb8 Rh2 Bf1 Bb7 Bb5 Rg2 Ba4 Rb2 Qc8 Rc6 Bc7 Qe5 Bcb8 Qc7 Qh3 Kd6 e7 Ke5 e8N Rb1 d6 Rb2 Ke2 f3+ Kd3 f4 d7 Rb1 Ng7 Rb2 Rf1 f2 Rd1 f1R Rf6 Ne6 d8R f3 Rdf8 f2 Qe8 Re1 Rf4 Re2 R4f7 f1B Rf2 Rb1 Qg4 Rb2 Qc4 Rb1 Qb3 Re4+ Ne2 Rd4+ Ke3 Rb2 Nc1 Rdd6+ Kf3 Rh2 Kg4 Rb1 Qd7 Nd8 Kg5 Rg2+ Kh6 Re6 Qe8 Rd6 Kh7 Be4 Kg8 Rc6 Qf7 Red6 Qd7 Ndb7 Kf7 Nd8+ Ke7 Qc8 Qe8 Qh3 Nba2 Qh2 Qbe3 Rb5 Qb3 Qg3 Bc7 Rb8 Nb4 Qb5 Bcb6 Qd5 Be3 Qc5 Bf4+
3rq2N/nNK1p2R/Qn2r3/3Q1rRn/B1Bbr1Q1/R3qqBQ/1k3N2/3b4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 a5 Kc5 Ke5 g4 h5 b4 h3 f4+ Kf6 d4 h2 b6 c6 d6 h4 b5 h3 d5 e3 b7 a4 d7 e2 f5 Ke5 f6 e1R f7 a3 b6 a2 g5 Ra4 g6 Qc7 d8Q Ra7 d6 Ra6 g7 Nf6 g8B Bg7 f8R Bg4 d7 Re4 Na3 Qc8 Bfc4 Nd5 Nb5 Be2 Qb3 Bd1 Nd6 Rh5 Be6 Rf5 Rg8 Bf6 Rg7 Ra8 Qh8 Qe8 d8N Ra6 Rg5 Bg7 Rb1 a1R Bd7 Ra8 Qg8 R1a6 Ra1 Bh8 Ra3 Bf6 Ne2 Bh8 Nf4 Bg7 Rhg1 h1Q Qb5 h2 Nh3 Bh8 Nf2 Qf3 Rh1 Bg7 Qh7 Bf6 Qh3 Bg7 Rhg1 h1N Bd2 Bf6 Be1 Ng3 Rh1 Nh5 Rh2 Nc3 Qb4 Nb5 Qd2 Na7 Qd5+ Kf4 N8f7 Be5 Nd3+ Ke3 Bg3 Ba1 Rh1 Kd2 Nh8 Kc2 Nf2 Bc3 Qg4 Kb2 Rh3 Nf6 Rh6 Nh5 Rh7 Bd4+ Kb4 Nc8 Qh3 c5+ Kb5 Nc6 b8Q Rff4 b7 Rf5 Qg4 Nb6 Qa7 Rc8 b8Q Rd8 Bb3 c4 Qc8 c3 Nb7 c2 Bc4 c1Q Qaa8 Ra4 Qa6 Re6 Qh3 Be5 Kc5 Na7 Bc6 Rb4 Ba4 Bc3 Be2 Rbe4 Bc4 Be5 Qcd7 Nac8 Kb5 Bd4 Ka5 Qce3 Kb5 R6e5 Kc6 Re6+ Kc7 Na7 Q7d6 Qf8 Qf4 Qe8 Qfg4
1bB1R2B/pnQ1n3/6n1/3bB2b/1rq1rRNQ/qBQ2NK1/n2Nk3/r4R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 f5 e4 c5 g4 h5 b6 h3 g5 h2 g6 f3 g7 c4 b7 c3 b5 h4 b6 c2 Ba6 f4 Be2 h3 Bd3 Ne7 g8N Ng6 Nh6 Bg4 Bb2 c1N Nd2 Bh5 Qe1 Na2 Bc4 Na6 b8R Qe7 b7 Nc5 Re8 Rb8 Bb3 Bg7 Bc3 Be5 Ng4 Rf8 Rd1 Rf6 Qe3 Re6 Rf1 Qf8 Ba1 Qe7 Qc3 Qf8 Ke1 f2+ Ke2 Re7 Ngf3 Re6 Rhg1 h1N Rg2 h2 Bb2 Kd7 d6 Kc6 d7 Kb5 d8Q Qe7 d5 Ng3+ Kd1 h1B d6 Qf8 d7 Nf5 Ke2 Nfe7 Qc7 Bd6 d8Q Re5 Re1 f1R Rf2 Re6 e5 Bg2 Ng1 Bd5 Ngf3 Rh1 Rff1 Rg1 Kf2 Rh1 Nh4 f3 Kg3 f2 Re4 Rg1+ Kh2 Qf3 Rf4 Qd3 Nhf3 Qe3 Rc1 f1Q Ra1 Rh1+ Kg3 Qc4 Rf1 Qed3 Rf2 Ra1 Rf1 Rc8 b8B Nb7 Qcd7+ Rc6 Q7c8 Rb6 Qcc7 Nc8 Qh4 Nce7 Rg1 Qe3 Rf1 Qec5 Rc8 Qa3 Re8 Rf6 e6 Rf5 Rg1 Re5 Re1 Re4 Rf1 Nc6 e7 Kc5 Rh8 Rb4 e8B Kb5 Bd7 Kc5 Qcd8 Nce7 Re8 Bc7 Bc8 Kb5 Qc2 Bd6 Bh8 Kc5 Nfe5 Kd4 Qc1 Bc7 Nef3+ Kd3 Qc3+ Ke2 Qd7 Bd8 Bbe5 Bc7 Qc6 Bb8 Qc7
3nn1bQ/rQ1n1n2/1N1b1Q1q/BN6/n2R1NB1/1B1R1rnN/3p4/KR1rk3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 a5 Kc2 d5 g4 e5 b4 h5 Kb2 d3 c5 d4 b6 e4 b7 d2 b5 e3 b6 e2 c6 e1N c7 a4 Bh3 d3 Rh2 a3+ Ka2 Nc6 b8R Bd6 b7 Be6+ Qb3 d1N c8Q d2 Rf2 Ra7 Rf3 Qf8 Nc3 Nd3 Nb5 N1b2 Rb1 Qh6 Ka1 Nde5 Rd3 Na4 Bb2 a2 Bc3 Nd8 Ba5 Nef7 Ra8 Rh7 b8N Rg7 Qd5 Rg5 Qdb7 Bc4 Bf1 h3 Be2 h2 Nh3 h1N Bf3 h4 Nd7+ Kg7 f6+ Kg6 Be2 Rf5 g5 Ng3 Nb6 Ne4 Qcc6 Nec5 Bg4 Nd7 Qh1 Bd5 Rc8 Be6 Rc4 Bd5 Rcd4 Bc4 Nf2 h3 Qhc6 h2 Nh3 h1N Qcc8 Nh8 f7 Ng3 f8Q Nhf7 Qcc6 Ngf6 Qh8 Ne8 Qf3 Nfe5 Qf1 Bg8 Qf2 Kf7 g6+ Ke6 g7 Nef7 Qf1 Kf6 Qf2 Rd5 f5 Ke5 f6 Rc5 Rd5+ Ke4 Qf1 Rc3 Qf2 Nfe5 f7 Rb3 f8N Nef7 Qf1 Rc3 R3d4+ Ke3 Ng6 Rb3 Qf6 Ra3 Be6 Ke2 Bg4+ Rf3 Rd3 Bb4 R5d4 Bd6 Rbb4 Ke1 Ngf4 Nc3 Kb2 a1R Rb3 Bh7 g8B Rd1 Rbb4 Na4+ Ka2 Be4 Rb1 Bd5+ Ka1 Nfe5 Bh7 Bg8 Be4 Nef7 Bd5 Nf8 Ba2 Nd7 Bb3
1brk4/B1Rb2nn/B1QK1Nrq/n2QN1n1/Rr5Q/1B2r2R/6pr/3N3R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 f5 e4 g5 b4 c5 h4 a5 d4 g3+ Kf3 c4 h5 a4 e5 a3 b6 a2 b5 c3 b7 g2 d6 c2 d5 Bg7 e6 Ra3+ Be3 c1R e7 Qb6 h6 Bd7 h7 Rc8 Nc3 Be5 Qc1 Nf6 Nd1 Nc6 b8N Na5 Qc6 Rb3 Bc4 Rb4 Bb3 Rg8 h8R Nh7 Rc1 a1R Bc5 Qa6 b6 Ra2 b7 Re2 Ba7 Re3+ Kf2 g4 Nf3 g1N Kg2 Bf6 Ne5 f3+ Kg3 Nh3 Rc4 N3g5 Kf4 g3 Rh3 Rb5 Ra4 f2 Rh1 Nf8 R8h4 f1N R4h3 g2 Qb6 Bc6 Nbd7 Nfh7 b8R Rg6 Rb7 Ng3 Rc7 Bh8 Nc5 Bg7 Ne4 Bd7 Qc6 Bh6 Nc4 Rb4 Ke5 Kf7 e8B+ Kf8 Nc3 f4 Nd1 f3 Bf7 f2 Bg8 Bf5 d7 f1R d6 Nh5 Bd5 Ng7 d8Q+ Ne8 Bg8 Bd7 Kd5 Rf4 Ne5 Rh4 Bc4 Qb6 Ba6 Bg7 Bf7 Bh8 Qf6 Ng7 Qf4 Rh5 Qh4 Rhh6 Bg8 Ke8 Nf6+ Kd8 Be6 Qb8 Kc5 Rh5 Bb3 Qb6+ Kd5 Qb5+ Qc5 Qe2 Qhd4 Qf3+ Ne4 Bg4 d7 N7e6 Rb7 Nf7 Qc6 Qf4 Rf3 Rh2 Nc4 Qh6 Rh3 Be5 Nf6 Bb8 Rc7 Ng7 Ne5 Ke7 Kc5 Be6 Qh4 Nfg5 Nc3 Bf7 Nd1 Be8 d8Q+ Kf8 Qdd5 Bd7 Bb5 Ke7 Ba6 Kd8 Kd6
Q2nrrN1/qn3N2/B1r5/2rb1RR1/3k1B1N/RBr3bQ/1Kp1NQ2/4q2r b - - 0 1 illegal: No possible last move
2n1r2r/R1b2Rnr/1Nb4Q/K3kr2/3RRpqb/2NrQ1b1/2B2BB1/QN6 b - - 0 1 illegal: No possible last move
bnQ3R1/3b3b/2n3Bb/Q1BNpNNR/2N5/1KBk4/1n3qnr/1bQR1r2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 a5 Kc2 d5 g4 e5 b4 h5 b6 d3+ Kb3 d2 g5+ Kf7 b5 h3 f6 Ke6 c5 Kf5 c6 Ke4 f7 d4 g6 d3 f5 h2 c7 h4 b7 h3 b6 Bh6 f8B Qd6 g7 Qd4 f6 Bd7 c8Q Ne7 g8N Nec6 f7 Qf2 Na3 Rh7 Qc2 d1N Bd2 Nb2 Bc3 Rh8 Qd1 d2 Ne2 Kd3 Ne7 Ra7 Qc1 d1B+ Nc2 Ra8 Nd5 Ra6 Bc5 a4+ Ka3 Ra5 Nce3 Bc2 f8N Bb1 Ne6 Rf8 Ng5 Rf5 Rg1 h1B Nc4 Be4 Rh1 h2 Bg2 Rf3 Nd4 Bh7 Nf5 Rh3 Bf3 Ra7 Bh5 Rh4 Rf1 h1B Bg6 Rh2 Rg1 Ra5 Rg4 Rb5 Rh4 Rb4 Rh5 Bf3 Na5 Re4 Qd8 Re1 Nc4 Rf1 Qc7 Ne7 Kb4 a3 Kb3 a2 Qc8 Nec6 Qd8 Na6 b8Q Bh1 Qb7 Nab8 Qbc8 Nb4 Qcc7 N8a6 Nf6 Ba8 Qe1 Nc6 Nd5 Bc2+ Ka3 Be6 b7 Bc8 b8R Bd7 Rc1 a1N Qa5 Bb1 Qg8 Nc2+ Kb3 Ne3 Qe6 Ng2 Rg8 Nab8 Qe8 Rfh1 Qc8 Rg1 Qf1+ Qe2 Qf4 Rf1 Re1 Qf3 Qc1 Qf2 Rd1+
3K1kB1/b1Bn2r1/1q1rp3/1Nrb1NRr/3BrRn1/1QQ5/2nR2n1/1B2N2Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 c5 Ke3 h5 Kf4 a5 Ke5 c4 f4 c3 b4 c2 g4 e3 d4 h3 d6 e2 d7+ Kf7 b6 e1R+ Be3 c1N d5 h2 g5 e6 b5 h4 f5 a4 d6 a3 b7 a2 b6 h3 g6+ Kg7 Bd3 Be7 f6+ Kf8 g7+ Kf7 Nc3 Na6 b8Q Nc7 b7 Bf8 Nb5 Rh7 Nf3 Ne8 Rg1 h1R Qc7 h2 b8Q Ra6 Rg5 Nh6 Bb1 Bb7 Qc3 Qb6 d8B Ne2 d7 Nf4 Bc7 Bc5 g8B+ Kf8 d8N Rg7 f7 Bd5 Nb7 Ng2 N7d6 Rhg1 Qdb3 h1R Nf5 Rh5 Qb7 Nf6 Qc6 Bd4+ Kd6 Nd7 Bf2 Re4 Ne1 Ng4 Be3 Bf6 Bd4 Ra5 Bd3 Rgh1 Rd1 a1N Bb1 Nc2 Rd2 R1h3 Qe3 Rf3 Qg1 Rd3 Qh1 Qb7 Qcc3 Bd8 Bb8 Bb6 Bc7 Qa6 Bd8 Ba7+ Kc7 Qd6+ Kc8 Qb6 Bc7 Ra4 Kd8 Rc4 Be3 Rc6 Bd4 Rc5 Bf2 Bc6 Nh4 Rd6 Bd4 Bd5 Kc8 Ke7 f8R Rdc6 Rf4 Rd6 Nf5+ Kf8 Kd8
1nQRn2b/q1R5/BNrrprBQ/5bBQ/1Nnr4/1K1R4/1N2B3/4nrk1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 c4 a5 Kc2 h5 b4 a4 g5+ Kf7 g6+ Kf6 g7 a3 b6 h3 b7 h4 b5 d3+ Kb3 h2 b6 d2 c5 h3 c6 d4 c7 d3 Qh5 d1N Ne2 a2 Nbc3 d2 Na4 Nb2 Nd4 d1R Nc6 Rd4 Nb4 Rh6 Be2 Qd7 Rd1 h1R Rd3 Nc4 Nb2 h2 Be3 Ra7 Rc1 Rd1 Rcc3 h1R Bd2 Na6 b8Q Rhf1 b7 Rg6 Qa8 Nb8 Be3 Ra6 Rc2 Nh6 g8B Rc6 Bh7 Ng4 Rc1 Rh6 Bg6 Bg7 Qa6 Bh8 Qb6 Na6 b8R Rdd6 Ra8 Nb8 Qc5 e6 Rc2 Ba6 c8B Qa7 Bd2 Bb5 Ba6 a1N+ Kc3 Rb6 Qc8 Rbc6 Rc1 Nc2 Kb3 Ne1 Be3 Rd4 Rcc3 Ke7 f6+ Kd6 f5 Ke5 f7 Ke4 f8Q Nf6 Bg5 Ne8 Rc2 Rh7 Qfh6 Rf7 Rh3 Rdd6 f6+ Kd4 Rc1 Rf8 f7 Ba4+ Ka2 Bc2 Rg3 Bf5 Kb3 Ke4 Rcc3 R1d4 Rgd3 Rg8 f8N Rg7 Rc1 Rf7 Nd7 Rf6 Rf3 Rf8 Nb6 Rf6 Rf4+ Ke3 Rc3+ Rd3 Rd4+ Kf2 Rd5 Rd4 Rd3 Rd8 Rd7 Kg1 Rc7 R8d6 Qb7 Nd7 Rd8 Nb8 Qc8
1QNQ4/R3rn1p/2qRq1rq/1R1Bnb1q/B2K1k1b/1B3N1Q/4qN2/B4q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 c5 e4 a5 g4 f5 b6 h3 e5+ Kd7 g5 f3 Ke3 a4 b7 a3 e6+ Kd6 b5 f2 b6 c4 e7 a2 e8B h2 g6 c3 g7 c2 Bc4 f1Q Nc3 Nf6 g8B Nbd7 b8N Qc7 b7 Ne5 Qg4 Ra6 Qh3 Ne4 Nf3 Ng5 Bb2 Be7 Ba4 Qc6 Bcb3 Ngf7 Nd7 Bh4 Nb6 f4+ Ke4 c1Q Nd1 Ra7 b8Q+ Rc7 Rb1 a1Q Nf2 Qa2 Ba1 Qcd2 Rg1 h1Q Rg7 Qfg2 Rb2 Qg5 Rb1 Qh6 Rb2 Ke7 Rb1 Kf6 Rb2 Bg4 Nc8 Re7 Rb1 Qdd1 Rb2 Qe6 d6 Qc1 d7 Qcc6+ d5 Bf5+ Kd4 Qd1+ Nd2 Qdh5 d8R f3 Rb1 Qac2 d6 Qd1 d7 Qe2 Nh1 f2 Nf3 f1Q Nf2 Bg4 Bd5 Kf5 Rb5 Kf4 Bdb3 Bf5 Bd5 Ng5 Bf7 Rg8 Bdb3 Qeg6 Bfd5 Qge6 Rg6 Qf7 Rd6 Rg6 Re8 Qe6 d8Q Ngf7 Rf8 Ng5 Rf6 Ngf7 Rd7 Qed6 Ra7 Qdd7 Rd6 Qe6 Qdc7 Qcd7 Qcb6 Qc6 Qd8
1r2nkb1/B3N1p1/nq5Q/1B1r2BN/R2b4/4rR1R/2n3QR/1NbKb1rQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 e4 c5 b4 f5 h4 c4 d6 c3 h5 c2 b6 g3 e5 a4 b5 g2 d5 a3 b7 f3 d7+ Kf7 d6 a2 h6 f4 e6+ Kf6 h7 Ne7 b6 Nf5 e7 Kf7 e8R Ra5 Ne2 g1R Re3 Re5 Rh3 Na6 b8R Rd5 b7 Qb6 d8Q Be6 d7 Nd6 Ng3 Ne8 Nh5 f2+ Ke2 Be7 Ref3 Bh4 Qg5 Kf8 d8N Bg8 Qg2 Bg3 Bd2 c1B Nc6 Bh4 Ne7 Bg3 Re3 Bh4 Qe1 f3+ Kd1 Bg3 Bc4 f1N Bb5 f2 Ra8 Bh4 b8B Bg3 Rc3 Bh4 Ba7 Ne3+ Ke2 Nc2 Kd1 f1R Rcf3+ Bf6 Rc8 Rf2 Rcc3 Re2 Rh2 Re3 Rfh3 Bh4 Rd3 Re2 Bg5 Re3 Qef1+ Bf7 Qh1 Be1 Qfg2 Rg8 h8Q Be6 Qh6 Rh8 Nd2 Bg8 Rb1 a1B Rb4 Bd4 Ra4 Rd8 Nb1 Rb8 Qhc6 Rh6 Rda3 Rd6 Rc3 Rd5 Qh6 Re6 Rcg3 Re3 Rf3+
6b1/rR2QBQ1/4rR1K/1nQ2B2/1b2rN1k/1N3nR1/2qp1B1r/N3nqnR b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 b4 e5 c4 a5 g4 d5 c5 h5 b6 d3 Ke3 e4 c6 d2 c7 h3 b5 h4 b7 h2 b6 a4 Ne2 h3 Na3 Ne7 Nc2 a3 Qe1 Na6 b8R d1Q b7 Be6 c8Q a2 Qc5 Qc8 Ba3 Rh4 g5+ Kg7 f6+ Kg6 f7 Kh5 g6 Ra7 f5 Nc7 f6 Nb5 g7 Ng6 g8B Ne5 Nc1 Nf3 Nb3 Rg4 Rc1 a1R Bd3 Bd6 Rf1 h1N f8N h2 f7 Nf2 Ng6 h1R f8Q Nh3 Qg7 Nhg1 Bf7 Rh2 Rb1 Qc7 Rg8 Rf4 Bc1 R1a6 b8R Kg5 Qeb4 Rb6 Rf2 Qf1 Rb7 Rg4 Nf4+ Kh4 Nca1 Bf8 Qcd4 Qc2 Qa3 Bb4 Qc5 Rd6 Bb2 Rda6 Bd4 Rc6 Rf8 Rb6 Rg2 Rba6 Rg3 Rc6 Be8 Bg8 Rf6 Re6 Bf7 Rg5 Ne2 Rge5 Kf4 e3 Bh7 Re4+ Kf5 Bc3 Kg6 Bb4 Nf4 e2 Kh6 e1N Bf2 d4 Bf5 d3 Qe7 d2 Qa5 Na3 Qac5 Nb5 Qd5 Nh3 Qc4 Qh1 Qd6 Nd3 Rf1 Nde1 Qe7 Qg2 Rh1 Nhg1 Qc8 Qf1 Qcc5
1QKBnr2/2N1rN2/3bn3/1Q2B3/1N1Qq1Rn/1b3r2/nRp2kB1/q1QR3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 g4 a5 d6 h3 d3 f3 b6 h2 g5 f4 b3 h4 g6 f2 g7 f3 d7 a4 Ke6 Kd4 e5 c5 b4 a3 b7 a2 b5 c4 b6 c3 Bf4 c2 Nc3 h3 Bg3 Ke3 d4 Na6 b8Q Ra7 b7 Qa5 d5 Nb4 d6 Nf6 g8R Ne8 Rb1 a1N Rg4 Nb3 Bg2 f1N Na2 f2 Rb2 Nfd2 Nf3 f1R Ng5 Nf3 Nf7 Nh4 Qc1+ Ke2 Rg1 Rf3 Rd1 h1R Bf4 h2 Bg3 Nd5 Nb4 Nc3 Bf4 Na2 Bg3 Bh6 Ke7 Rf8 d8Q Be6 d7 Bd5 e6 Nc5 Be5 Kf2 Qb6 Qa6 Kd8 Bf4 e7 Bb3 Kc8 Bg3 Qb5 Ne6 d8B Qc6+ Qc7 Qe4 b8Q Rb7 Qc3 Bf4 Bh8 Bd6 Qg7 Nf6 e8N Re7 Nc7 Ne8 Nba6 Re1 Nb4 h1Q Qc3 Qg1 Be5 Qf1 Qbc6 Qa6+ Qcb7 Rh1 Qc4 Qa7 Qbb5 Qad4 Rb1 Qa1 Rb2 Rh8 Qd3 Rf8 Qd4+
4rnR1/Kn1B1q2/QNr1q3/3RB3/Qp1qR1Bb/2QN4/4kqRN/1r2rb2 b - - 0 1 illegal: No possible last move
1KbBr3/B3R3/R1B2b2/1Q3pq1/N1r3q1/n1NNQ1n1/3k2rn/n2rRQN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 d6 a4 b7 h2 Bg2 f1R Be3 h3 Ba7 c2 Nc3 Nh6 g8R c1R Rg7 a3 Re7 Rf4 Qf1 Qe8 d8B a2 d7 Ng4+ Kd6 Rg8 Kc7 Bg7 e5 Rb1 e6 Nc6 b8N Nce5 Bc6 Qh5 Na6+ Kb3 Nc5+ Kc2 b4 Qg5 b5 Rc4 b6 Kd2 b7 Rd1 b8Q Bf6 Qb5 Re8 Rb1 a1N Nd3 Rb8 Rb4 Rb6 Ra4 Ra6 Rb4 Ra2 Ra4 Rc2 Ra6 Rb2 Nge2 Rc2 Rg1 h1Q Kb8 Qe4 Rh1 h2 Ng1 Qd5 Bdb6 Rb2 d8N Qf3 Nb7 Qh3 Nbc5 Qhh5 Nge2 Qhg6 Rg1 h1N Bd8 Nh2 N5a4 Ng3 Rh1 Q6h5 Ng1 Qh3 Rh7 Qhg4 e7 Re4 Rg7 Nc4 Rf7 Na3 Rg7 Rg8 e8Q Rc4 Qe6 Rf8 Re7 Re8 Qe3+ Kc2 Nge2 Qh6 Qg2 Qhg5 Re1 Ra2 Qf1 Rb2 Ng1 Ra2 Qd4 Rb2 Nf4 Kc1 Qc5 Rg2 Nd3+ Kd2 Qe3+
1QRrqnk1/3Npb2/n1q1RB2/1nNr1N1Q/QQ2b2K/1Bb5/2b3R1/5nB1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 b4 a5 f4 c5 Kf2 h5 g4 c4 g5 a4 f5 h3 Kg3 c3 d6 a3 d7 e3 b6 c2 d5 a2 b5 h2 f6 e2 d6 e1N g6+ Ke6 g7 Kf7 b7 Na6 b8Q Nb4 b6 Ra3+ Kh4 Na6 b7 Qe8 d8Q Ra5 d7 Rd5 Bg5 c1Q Qa5 Nc2 d8B Be6 Bc4 Nd4 Qaa4 Nb5 Bb3 Qcc6 Bb6 Bf5 Nf3 Bc2 Rf1 h1B Nd4 Bhe4 Nc3 Bg6 Rb1 a1N Re1 Bge4 Rb2 Bg6 Kh3 h4 Re6 Bge4 Kg4 h3 Nf5 h2 Bg1 h1B Qd6 Bhg2 b8Q Bf1 Qdb4 Bc4 Ba2 Nb3 Kg3 Bed3 Ne4 Nd2 Nc5 Be4 Bb3 Nf1+ Kg4 Rh2 Ra2 Rhd2 Kh4 Rd8 Qe2 R2d5 Qeh2 Nh6 g8R Bg7 Rh8 Ng8 Qh1 Kf8 f7 Bc3 Qf3 Qb6 Qh5 Qbc6 Nd4 Kg7 f8N Nf6 Nfd7 Nh7 Rb2 Nf8 Ra2 Bg6 Nf5+ Kf7 Bf6 Be4 Rh6 Kg8 Rg2 Bcd3 Rh7 Bc2 Rh6 Qb7 Rc6 Qa8 Rc8 Qc6 Bg5 Bf7 Re6 Bh8 Bf6+ Bg7 Bg5 Bc3 Bf6+
7b/1b1pQ2R/3Bq1b1/1NbkRqB1/2Nrq1B1/Qq1rnN2/3Q1K2/1N1R1n2 b - - 0 1 illegal: No possible last move
1n1BrB1R/1p1r1n1N/2bk1qN1/r5n1/Q2bQ1Q1/1q3B2/5R2/1nQN1KRr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 g4 e5 f4 c5 a4 h5 g5 b3 g6 e4 d6 b2 d5 h3 f6 e3 f7 h4 f5 c4 f6 e2 a5 c3 a6 h2 a7 h3 g7 c2 Nf3 Be7 f8N+ Ke8 d7+ Kf7 d6 Qb6 d8B Qd4 d7 Nh6 Nc3 b1N Ba3 c1Q Nh7 Ke6 g8Q+ Nf7 Bg2 Qb2 Ne5 Bc5 Qc1 Kd6 Bf3 Qb3 Qg4 Re8 Nd1 Qdb2 Rg1 h1R Ng6 h2 Ra2 Qa1 Ba5 Qe5 d8R+ Bd7 Rc8 Bc6 Bd8 Ng5 f7 Qf6 Bb2 Bd4 f8Q+ Re7 Qg8 Nf7 Qe8 Re3 Kf2 e1N Kf1 Re5 Bc3 Rb5 Rf2 Ra5 Be2 Nf3 Qee4 N3g5 Bd2 Nf3 Bh6 N3g5 Bf3 Na6 Rc7 Rc8 a8Q Nb8 Re7 Rc7 Re8 Rd7 Ke1 Bc5 Rh8 Bd4 Rgf1 Rg1 Qa6 Rg2 Rg1 h1R Kf1 Rgh2 Qb5 Rg2 Qa4 Rg3 Bg2 Re3 Bf3 Re2 Qd3 Ree5 Qde4 Re8 Bf8+
1n1R1B1r/2b4k/Q1NR2Bn/2prpQ1B/2qNb3/N3qnK1/1r3R2/2R1q1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
N3r2Q/b2B4/1p1NR2n/k1nKN2N/R2Q2bB/1r3pqn/2qB1Rq1/1r5Q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 d4 Kb6 a4 g5 h4 b3 a5+ Ka6 d6 f5+ Kd5 b2 e4+ c4 h6 f3 d7 g4 h5 f4 h7 g3 e5 g2 h6 b6 e6 f2 e7 f3 e8N Ra7 Bd2 Qc7 d8B Rb7 Ra2 Qd7+ Nd6 Qa4 Rh4 Re7 Ne2 g1R Bh3 f1Q Bd7 c3 Nf4 c2 Na3 c1N Nac4 b1Q Ne5 Ne2 Nh5 Qbc2 Rg4 Re6 Bh4 Qg2 Rg6 Re8 Re6 Re7 Qa1 Rb1 Rb2 Ng1 Rb4 Nh3 Qb2 Ka7 a6 Re8 Qc1 Rb3 Qh1 Qcg6 Nd3 Q6g3 Ne5 Ka8 a7 Na6 Nb5 Kb7 a8N Nc5 Nd6+ Ka6 Kc4 Q3h2 d5 Qhg3 Kd4 Nf6 Kc4 Rg8 h8R Ka5 h7 Ng4 Kd4 Rg7 Rg8 Rge7 h8Q Nh6 Rg4 Qc6 Re4 Qa4 Re2 Rb1 Rf2 Qc2 Nb5 Bg7 d6 Bf6 Kd5 Bg5 Bc6 Bf4 d7 Rb3 d8Q Rb1 Nd3 Bb8 Nd6 Ba7 Qd4 Rb3 Ne5 Rg7 Qf6 Rg6 Qh8 Bd7 Re7 Bg4 Bd7 Rg5 Re6 Rf5 Qf8 Rf4 Qg8 Re4 Qh7 Re1 Qh8 Reb1 Ra4#
8/2K1p1q1/1nn1N1kq/1b3n1q/1r2pB1Q/RBb1RrN1/QR1BB3/2b3QN b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 a5 Kd4 h5 Kc5 h3 b4 a4 d4 h2 g4 h4 f4 c6 d6 h3 b6 a3 d7 a2 f5 Rh6 b7 Rh8 g5 Qc7 d8N+ Kg7 d5 Be6 f6+ Kh7 b5 Qg3 Kb6 c5 f7 c4 g6+ Kg7 d6 c3 d7 c2 Ne2 Nh6 Nd2 Nc6 b8B Nf5 Bf4 Ncd4 Kc7 Bd5 b6 Rb8 b7 Qg5 Ng3 Bc6 Be2 Bb5 Qg1 Nc6 Ne6+ Kh6 d8R Bg7 Rd3 Rhf8 Re3 Bc3 g7 Kg6 g8B Qh5 Ndf1 Nd6 Rb1 a1Q Bd2 c1B Rb4 Nc8 Rb2 Ra8 b8Q Nb6 Qb7 Ra4 Qa7 Rb4 Qa2 Qh6 Qf2 Qh5 Rg1 h1Q Qg2 Rd8 f8Q h2 Qh3 Rdd4 Qh4 Rd3 Qd8 Qh6 Qd4 Qf3 Rg2 h1N Rb3 Qfh5 Ra3 Nf2 Nh1+ Ng4 Nfg3 Qb2 Rf3 Ne3 Rh2 Nf5 Qg1 Qb3 Rhf2 Qd5 Re3 Qd4 Ng5 Qdg7 Bb3 Rd8 Ne6 Rf8 Bd6 Nfd4 Be5 Rf3 Bf4 Nf5 Rf1 B1b2 Rb1 Bc1 Rb2
3nnKb1/1B2Q2q/3Bbb1N/1Rbb1pRN/1R5B/2rpk1N1/n1R4Q/1r5Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 a5 b4 g5 c4 f6 h4 a4 c5 d6 b6 g4 b5 a3 c6 a2 h6 d3 b7 f3 c7 f2 h7 g3 h5 g2 h6 d2 b6 Qe8 Nc3 Qb5 Rh4 Qa6 Nh3 g1B Nf4+ Ke7 Kd5 f5 e4 Kf6 e5+ Kg5 e6 Qa7 e7 Bh2 e8Q Nc6 b8B Nd8 Nh5 Be5 b7 Bf6 Bg2 f1B Rb4 Bd3 Rab1 a1N Qh1 Nc2 Ne4+ Kg4 R1b3 d1B Qe7 Bf3 Bg5 Bd7 c8R Bf1 Bc7 Rb8 Bh4 Bfb5 Ng7 Kf4 Ra3 Bd3 Nh5+ Ke3 Ra1 Bde2 Rg1 Bd1 Qh2 Bde2 Bh1 Bd1 Rg5 Bg2 Rb5 Nb4+ Kc4 Na2 Neg3+ Be4 Rb4 Be6+ Kb5 d5 Bd6 d4 Rc2 Rc8 b8R Ba8 Bb7 d3 Qh1 Rc6 Qh2 Rb6+ Kc5 Bf3 Rb5 Bd5 Rb4 B6g7 Rb5 Nf6 Rb4 Rg8 h8N Ne8 h7 Bf6 Nf7 Bb3 h8Q Rg6 Ba6 Bad5 Nh6 Qd7 Bb7 Bbc4 Ra4 Rb1 Rb4 Qc7+ Bc6 Qd7 R8b5 Rg7 Bb7 Rh7 Qeg7 Bg8 Qh1 Bde6 Qh2 Bcd5 Qh1 Qf7 Qh2 Qg6 Qe7 Rf7 Qh1 Qh7 Qc7 B8g7 Bf8 Bc4 Nf4 Rd7 Nf7 Bh6 Qg7 Ba1 Nfh5 Nf6 Ne2 Bc3 Qch2 Ne8 Neg3 Bcd5 Qf6 Bg7 Nh6 Rd6 Qf7 Bgf6 Qc7 Ra6 Qd7 Ra3 Qg7 Nc7 Kd6 Bcd4 Qf7 Rc3 Qd7 Bg7 Ke7 Bc5+ Qd6 Na6 Ke8 Bf6 Be7 Nc7+ Kf8 Ne8 Qc7 Qg6 Bd6 Qh7 Qe7
4R1r1/1nQ1b2N/4b1np/R1Qrq2p/3N2Q1/B1K2RR1/2nB2nN/nBr3k1 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 h5 gxh5 cxd5 Bd6 Qb3 Bb4 Qd1 Bf8 d4 Ke7 Kd2 Kd6 b4 c5 g4 a5 e4 f5 b6 a4 b7 h6 g5 a3 e5+ Ke7 g6 c4 e6 Kd6 b5 f3 b6 f2 e7 f4 e8N+ Kd7 d6 Kc6 d5+ Kc5 d7 Kd4 g7 a2 d6 f3 Ne2+ Ke4 Kc3 Ne7 g8R Ng6 Nd4 Qf6 d8R Na6 b8Q Be7 d7 Ra7 b7 Qe5 Bd2 Nc5 Qc7 Ra5 b8Q Nb7 Qa7 Rd5 Be2 f1N Qac5 f2 Rh3 Ne3 Nf6+ Kf4 Rde8 f1N d8B Be6 Nh7 Ke4 Rf3 Ng2 Rg7 Nfe3 Qa4 Nc2 Bd1 Bf6 Be7 Rg8 Bd6 Be7 Qad7 N6f4 Rgg3 Ng6 Q5a5 Qf4 Ba3 Qg5 Qac5 Qe5 Kb2 c3+ Kb3 Nce1 Kc4 c2 Kc3 c1R+ Bc2+ Nd3 Re3+ Kf4 Rgf3+ Kg4 Rg3+ Kh4 Ref3 Nde1 Bb2 Qe4 Be3 Bg4 Nd2 Qe5 Nf1 Bh3 Bd2 Bf5 Rb1 a1N Ba3 Bg4 Rb5 Bh3 Kb2 Bg4 Bb1 Nec2 Ra5 Bf5 Rg5 Bh3 Kc3 Bg4 Ng3 Kh3 Qe6 Kh2 Nf1+ Kg1 Nh2 Bf5 Rgg3 Bh3 Qf5 Bg4 Qf4 Be6 Qg4
1B4r1/2b2p1R/nR5r/bq1Bk1rr/4N3/2pnN1Q1/N1Q1KR2/Q1R2Brb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kd6 d4 h5 e4 a5 g5 c5 g6 c4 g7 f3 e5+ Kd7 e6+ Kd6 b6 f2+ Ke2 a4 b5 c3 b7 h3 e7 h2 e8B h4 b6 a3 Qc2 h3 Nd2 a2 Bc6 Na6 b8R Qh4 b7 Nh6 g8N Qg5 Ne7 Rg8 Nf5+ Kc7 Ne3 Kd6 Rb1 a1B Rb2 Ng4 Ne4+ Kc7 Ra2 Bb2 Bd2 Bc1 d6+ Kd8 d7 Kc7 d8R Bb4 d5 Ba5 Rd6 Ne5 Rh6 Nd3 Rh7 Qe5 Rb2 Rg5 Rb6 Be6 Rbh8 Rag8 d6+ Kd8 d7 Kc7 Be1 Qb5 Bd5 Ba3 Bd2 Bd6 Bc1 Kd8 b8Q+ Ke7 Bd2 Bc7 Be1 Bd8 Qg3 Bc7 Kd1 Bg4+ Ne2 Bf3 Rg1 Bg2 Nc1 h1R Ke2 Rh2 Na2 Bh1 Bc6 Ke6 d8Q Qa4 Qa8 Qb5 Qh4 Ke5 Bd5 Rh5 Bd2 Rhg2 Bc1 R2g5 Qg3+ Kd4 Ba3 h2 Bd6 Rh6 Bh3 Rhh5 Rc1 f1R Qa7 Rg1 Bf1 Bd8 Bb8 Bc7 Rg7 Rh6 Rgg6 Rhh5 Rgf6 Rh6 Rf4 Ke5 Qa8 Bg2 Rh7 h1R Qc6 R1h5 Rf2+ Kd4 Qcd6 Bh1 Qf8 Rf6 Qa3 Rfh6 Rf4 Ke5 Qab2 Rf5 Qa1 Rfg5 Rf2+
1Q2R1Nn/Qp5b/1r3bB1/2r2Q1R/6NB/n1qN3Q/1nrp1R1K/r1r1k1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 f4 Kf6 Kf2 d5 Kg2 g5 a4 e5 c4 b3 h6 b2 h7 g4 c5 d3 c6 g3 c7 d4 a5 e4 h5 d2 a6 e3 h6 e2 a7 e1R Bd3 Rf1 Nh3 Bg7 Qb3 d1N Be3 Qe8 Bg1 Qe5 Na3 b1R Nf2 Na6 Ra2 Nc5 Rh5 Ne4 Nc4 Ne7 Bc2 Qa5 Ne5 d3 Qb6+ Be6 c8N Ng6 Ne7 Rac8 a8R Nb2 Qa7 Rc5 Re8 Nd6 Kh3 g2 Kh2 Rg8 h8Q Qc3 h7 Rf8 Qg8 Nb5 h8Q Na3 Qh6 Bc8 Qd5 Rh8 Qd8 Be6 Qdb8 Bg8 Kg3 Nd1 Rh1 Bf8 Bh2 Qa1 Qh5 Rb6 Nfg4+ Kg7 Kh3 g1R Rb2 Rh6 f6+ Kh7 f7 Nh8 f5 Bg7 Ra2 Qc3 f8B Re1 f6 Rgf1 Ra1 Nb2 f7 Re2 Re1 Rg2 Re2 Ra1 Bb1 Rg1 Qh4 Rc1 Bg1 Rh5 Nc8 Rhh6 Be7 Rh5 f8Q Rhh6 Nf7 Kg6 Rd2 Kf5 Nfe5+ Ke4 Bf6 Qb3 Ne7 Bh7 Ng8 Qc3 Bg5 Rhd6 Rf2 Kd4 Qf3 Bf6 Qhg3 Rdd5 Kg2 Rdd6 Rh5 Rd7 Kh2 Re7 Nf7 Re2 Bh4 Kc4 Nfe5+ Kb3 Ba2+ Kc2 Bf7 Kd2 Qf5 Ke1 Bg6 Rec2 Qh3 d2 Nd3+
nN1R2rb/QK6/B1rr4/k1N1Rq2/2b1BQ1p/pn1nB1N1/4Rb2/1N3b1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb6 d4 a5 e5 h5 g5 a4 d6 c4 d7 a3 e6 h3 d5 h2 d6 c3 e7 c2 e8Q h4 g6 Rh6 g7 Nf6 g8B Ba6 Qe5 Bg7 Ra2 Ne4 Be3+ Nc5 Bd5 c1B Be4 Qc8 d8R Bh8 d7 Rc6 Ne2 Bb2 Qe1 Bd4 Ng3 Nb3 Re2 Bc5 Rg1 h1N Qc1 Nf2 Qg7 Kb7 b6 Bc4 b5 Nd3 Rgg2 Na6 Re1 Bf7 Rge2 Nc7 Qg4 Bd5 Qh3 Ra6 Qh1 Na8 Qd2 Bc4 Qc1 Kb8 b7 Kc7 b8N Kb6 Qd2 Rd6 Qc1 Ka5 b6 Bcd4 b7 Rac6 Na6 Bc5 b8N Bb6 Rf8 Bc5 d8Q+ Bb6 Qe7 Ba7 Bg1 Bf2 Qa7 Qe6 Rd8 Qd5 Kg2 f3+ Kh2 f4 Bg6 Bfd4 Re5 Rc7 Rf5 Nb2 Rh5 Bd3 Nc5+ Ba6 Bc4 Nd3 Re2 Qe4 Re5 f2 Nf5 f3 Qf4 f1R Kh3 f2 Kg4 Nb4 Bh7 Qc2 Kf3 Rd1 Bg6 Rd3+ Ke4 f1B Bh7 Rg3+ Bd3 Rg8 Ng3 Bf2 Bg6 Be1 Be3 Bf2 Bf5 Na2 Bc8 Nac1 Bb7 Kb4 Bc8 Bc4 Ba6 Ka5 Kf5 Rd5 Ke6 Rc8 Ke7 Rd6 Bg6 Rcc6 Bf5 Rh6 Kd7 Qe4 Bh7 Nd3 Bg6 Re6 Kc8 Rc6+ Kb7 Qf3 Be4 Rhd6 Qh6 Qf5 Qf4
b3BrBk/bnnKB3/2NR2r1/1NN5/Qp3qp1/QB3n1r/3Q2Rb/2nR4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 b5 Kf3 g5 Ke4 f5+ Ke5 Kf7 a4 Kg7 e4 c5 d4 b3 h4 b2 a5 f3 a6 f4 h6+ Kh7 h5 b4 d6 f2 a7 c4 d7 g4 Ke6 c3 e5 f3 d5 c2 d6 Ba6 Bc4 f1R Bg5 c1B Bb3 f2 Nh3 Bf4 Nc3 b1N Ra2 Rg1 Be7 f1N Nf2 Bb7 Qd2 Ng3 Nb5 Rf1 Nd3 Re1 Nc5 Rc1 Rd1 Qb6 d8N Ne2 Nc6 Na6 d7 Qc7 d8R Nf6 Rd6 Nd7 Rb2 Rb8 a8B Bh2 Rc2 Kg8 h7+ Kg7 Ra2 Rc2 Rb2 Nc1 Ra2 Rc3 Rb2 Rh3 h6+ Kg6 Ra2 Rg8 h8Q Rd8 Qf6+ Kh7 Qf3 Kh8 h7 Bh6 Qfc3 Rdf8 Qcb2 Be3 Qa3 Nf6 Rc2 Nd5 Qa4 Qb8 Kd7 Ndc7 e6 Bf2 Nd3 Ba7 Nc5 Nc3 Ra2 N3e2 Qa3 Ng1 Rb2 Kg7 Qa4 Nf3 h8Q+ Kg6 Qhd4 Kh7 Q4c3 Rg6 Ra2 Kg8 Qcb2 Kh7 Qba3 Kg7 Ne5 Be4 Bad5 Kh8 Bdc4 Ba8 Nc6 Kg7 Qd3 Kh8 Rg2 Rfg8 Qc2 Qf8 Qd2 Qf4 Bg5 Rf8 e7 Ne6 e8B Nd8 Bcf7 Nb7 Bg8 Nc7 Be7
Q2rb2r/2Q3R1/1p1b4/1R1BB2n/N2q2bN/4rnr1/pn1N1KRQ/k3B2N b - - 0 1 illegal: No proof kernel
2bNrBr1/3Br1N1/8/nQ4B1/rbnR2pK/p1QB4/Q1r3Nk/1RqR1q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 g5 b6 a5 b7 a4 e5+ Kd7 e6+ Kd6 h5 a3 e7 c4 e8B c3 b5 c2 h6 f3 Kg3 f2 b6 Be7 h7 Be6 Bd7 Nh6 Qe2 Qc7 Nf3 Ra5 Ne1 Nc6 b8B Re8 h8Q Nf7 b7 Nfe5 Nc3 Ra4 Rb1 Na5 Nd1 Nec4 Ne3 Bf8 Bd2 c1R N1g2 Rc2 Ba7 Re7 b8Q Re8 Qb5 f4+ Kh2 f3 Kg3 Qc5 Bb4 Bf5 Qd2 Be7 Bd3 f1R Qg7 Rfc1 Rd1 f2 Qg8 f1Q Qc3 Re2 Bb6 Rcc2 Bd8 Rf2 Qf7 Rf4 Qg8 Re4 Qf7 Bf8 Bf6 R4e7 Qg8 Be6 Nf5+ Kc7 Ng7 Kd6 Bc6 Bc8 Bd7 Rb2 Kh2 g3+ Kh3 Rc2 Qf7 g4+ Kh4 Rd8 Bg5 Rde8 Ne1 g2 Qf2 g1R Ng2 Rc1 Qa2 Rc2 Ne3 Rg3 Ng2 Rge3 Bh6 R3e6 Bc1 Rg6 Bg5 Kc7 d6+ Kd8 Nh5 Rg8 d5 Qcg1 Ng7 Qe3 Bc6 Qc1 d7 Kc7 d8N Qe2 Bc5 Qf1 Bce3 Kd6 Bd7 Rf2 Bh6 Rd2 Beg5 Rc2 Qcb4+ Ke5 Qd2 Re6 Qdb4 Bc5 d6 R6e7 Qc3+ Kd5 Be2+ Ke4 Bd3+ Kf3 Nge6 Qe2 Bf8 Qf1 Ng7 Bb4 Nb7 Re3 B7f5 Bc5 d7 R3e7 d8R Bb4 Rd4 Kf2 Be6 Kg1 Bd7 Kh2 Nd8
Q2q1B2/Qr4r1/4KNNq/npQ2Rqq/2p3q1/1bN2Bk1/1N1b1R2/2R1B2n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 c5 g4 b5 a4 h5 d4 c4 a5 b3 f6 h3 f7 b2 a6 e6 g5 h4 a7 h2 g6 h3 g7 Qc7 Ne2 Qb6 Bd2 Be7 f8B Nh6 g8N Qd8 Nec3 Nf5 Qh5 Ng3 Nf6 Rg8 Bg2 Rg7 Na4 Nc6 Be1 Na5 Nbc3 b1Q Ra2 Rb8 a8Q Rb7 Qa7 Qg6 Bf3 Bd7 Rf1 h1Q Nb2 h2 Ra1 Qg2 Rc1 h1Q Qf5 Qgh5 Qg5 Kc7 Ke5 Bb4 Qf5 Q1h4 Qg5 Q4g4 d6+ Kc8 d5 Nh1 Qf5 Bc6 d7+ Kc7 Qg5 Qh6 Qge3 Qg1 Qec5 Q1g2 Nca4 Bd2 Nc3 Qg1 Be4 Qgh2+ f4 Q2h5+ f5 Q5g5 Bf3 Q5h5 Ng8 Qdg5 d8N Kd7 d6 Be4 Rf2 Bc2 Nf7 Bb3 Nh8 Qd8 Ng6 Qgg5 Ke4 e5 Kd5 e4 Ke5 e3 Kd5 e2 Ke5 Ke8 d7+ Kf7 Nf6 Be3 Bd2 e1Q Kd6 Qeg1 Be1 Bd2 Ke5 Qb6 d8Q Q1g4 Qda8 Qd8 Nd7 Kg8 Kd5 Kh7 Ke6 Q4f4 f6 Qgg4+ Qf5 Qfg5 f7 Qe3+ Be4 Qhf4 Ba3 Kh6 f8R Qc5 Bf3 Qce7+ Kd5 Qee3 Qe5 Qff5 Rf7 Kg5 Bf8 Qh6 Kd6 Qgh5 Qed4 Qfg4 Kd5 Qee7 Qdc5 Qf6 Ne7 Qff4 Rf5+ Kh4 Ng6+ Kg3 Ke6 Qfg5 Nf6
4KBqk/1n1NBN1N/4Q2p/bR1BqR1b/4RnrQ/rp6/nQ1R4/3n2n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kg7 Kf4 c5 Kg5 b5 f4 e5+ f6+ Kf7 a4 h3 d4 e4 g4 c4 a5 h2 f5 e3 a6 b3 d6 b2 d5 c3 d7 b4 a7 c2 d6 e2 Ra5 e1N Rb5 b3 Nc3 b1N Qe2 Ba6 Na4 Qe8 d8R Be7 d7 Nd2 Nh3 Nc6 Nb6 Nb4 Bg2 Nb1 Bd5+ Kf8 Ba3 c1N Rf1 h1Q Qb2 Bc5 f7 h6+ Kg6 Nc3 g5 Qh2 Rf4 Qe2 Re4 Ne7+ Kf6 Bd6 g6 Nba2 Ng5 Bb4 Ke6 Kg7 f8B+ Kg8 g7 Ned3 f6 Nd1 Nh7 Ba5 Bc5 Nc6+ Bce7 Qf7+ Kd6 Nf4 Kc7 Rb8 a8Q Qe3 Qb7 Nce2 Kd6 Ng1 Qc7 Ne5 Qc4 Ra8 Qb4 Qe2 Qe1 Qh2 Qh4 Nc4+ Kc6 Qe6+ Kc7 Nd6 Kc6 Kf7 Kc7 Kg6 f7 Qe5 Kc6 Nb7 g8Q+ Qg7 Rc8 Qg3 d8N Qc3+ Kd7 Qe5 Rc2 Ra7 Rbc5 Be2 Rb5 Bh5 Rd2 Ra8 Bd6 Ra6 Bfe7 Ra8 f8R Ra6 Rf7 Ra8 Qe8 Qg8 Rf5+ Kg7 Nf7 Ra7 Ba3 Ra8 Na4 Ra6 Nc5 Rg6 Qc8 Rg5 Qc6 Rg4 Qe6 Qf8 Rb6 Bc3 Bd6 Qa8 Rb5 Rb8 Nfg5 Kh8 Ke7 Rc8 Nd7 Rc6 Bab4 Ra6 Bdc5 Ra3 Nf7+ Kg7 Bd6 Qh8 Bbc5 Kg8 Ke8 Ba5 Bf8 Qhg7 Bce7 Qh8 Qg6+ Qhg7 Nd6+ Kh8 Qf7 Qg8 Qg6 Rg2 Qf7 Rg6 Qe6 Rg4+ Nf7+
K1N2NQ1/2Nn4/2R1Bpp1/3RbB2/3nbr1q/1RRQbkq1/4b1b1/5QBr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 c4 a4 h4 f6 b4 d3 b6 g6 b5 f3 c5+ Ke6 c6 d2 c7 f2 h6 a3 h5 a2 b7 d6 h7 Ra5 h6 Nd7 b8Q Ra6 b6 Ra5 b7 Ra8 Rh5 Ra3 Rd5 Bg7 Bh3+ Ke7 Bf5 f1Q Nh3 Ra7 Nc3 Nf8 Nf4 Bd7 Ne6 Qh3 Qf1 d1B Be3 Qg3 Bg1 Bc6 Nb5 Nd7 Rc1 a1B Nf8 Be5 c8N+ Kf7 e3 Be2 Rc3 Ne7 Nc7 Ra3 Qa7 Ra4+ Qd4 Qe8 b8R Qd8 Bh3 Nf5 Rbb3 Rb4 Qc4 Nd4 Bf5 Ra4 Qd3 Ba8 Nb5 Qa5 Rc6 Qae1 Nc7 Bb7 Rdb5 Qh4+ Kd5 Qeg3 e4 Bf3 Rc3 Bg2 Rb6 Ra2 Rbb3 Rf2 Qde2 Rf4 Qd3 Rg8 h8R Ba8 h7 Bh6 Kc4 d5+ Kb4 Bg5 Ka5 Kg7 Ka6 Kh6 Ka7 Kh5 Be6 Rg7 Rg8 Bb7 h8Q+ Rh7 Bf7 Kg4 Be6+ Rf5 Rg7 Be3 Qg8 Rh8 Rh7 Ba8 Rh5 Rh6 Qa1 Kf3 Qaa6 Rf4 Qac4 Bd6 e5 Rh8 Bf5 Rh7 e6 Be5 e7 Rh8 e8B Qhh3 Rcb6 Ne6 Qd2 d4 Qa6 d3 Rh4 Ra4 Qc2 d2 Rd4 d1B Bf7 Rh7 Qc1 Be2 Qd1 Rb4 Qad3 Rh4 Rdd6 Rbf4 Qc1 Nd4 B7e6 Bd5 Rbc6 Be4 Rd5 Qhg4 Qa1 Rh1 Ka8 Q4h4 Qf1+
R2Q1q2/4b1N1/q3R3/1krN2B1/B4pQR/1n1rR1QB/rNp2nbK/bb6 b - - 0 1 illegal: No possible last move
1N1n1R2/R3b3/1k1N1nb1/Br1rqr1N/B1p5/R1qQ3B/np4Q1/Q2K1Nr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 b5 f4 h5 g4 e5 g5 c5 d6 Kc6 d5+ Kb7 g6 h3 a5 h2 a6+ Kb6 g7 h4 f6 h3 d7 b3 f5 b4 a7 b2 f7 e4 d6 e3 f6 b3 Bd2 e2 Bb4 c4 Ra3 Kc6 Nd2 Qb6 d8Q b1N d7 Be7 f8R b2 f7 Nc3 Qa1 Nf6 g8Q Rh5 Bg2+ Kb5 Nf1 Qa5 Bc6+ Ka6 Ba4 Qe5 Qg2 Nc6 Kd2 e1R Ne2 Rf5 Nf4 Na2 Nh5 Rb8 a8B Rb5 Kc2 Re4 Kd1 Ka7 Rg1 h1Q Bb7 h2 Ba8 Nd4 Bd5 Ref4 Be6 Rg5 Bh3 Ne6 Qd2 Rgf5 Rg7 Rd4 Qd3 Bb7 Qa8+ Kb6 d8N Be4 Nb7 Nd8 Nd6 Qf3+ Kd2 h1R Rh8 Qc5 f8N Rg5 Kc2 Bh7 Qg6 Qe5 Rhg8 Qfe3 Qg2 Rg1 Rf7 Qe1 Qd3 Qc3+ Kd1 Rf5 Rh8 Bg6 Nd7+ Kc7 Nb8 Kb6 Rg8 Bf8 Ra7 Be7 Rf8 Rdd5 Ba5+
b1q2k2/1Nn3b1/RK1N1p2/QR1QQn2/prrrB1B1/1Q3N1r/bB6/3R2q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 b4 h5 g4 c5 e4 f6 d4 f3 Ke3 f2 d6 c4 e5 c3 b6 h3 e6 h2 d7+ Ke7 b5 h4 b7 c2 g5 h3 b6 Nh6 d5 Ra7 Kd4 Na6 b8R Rh7 b7 Ra8 g6 Nc7 Kc5 Rf7 g7 Nf5 g8B Nh4 Bh7 Nf3 Nd2 Ra7 Ne4 Nd4 Bb2 c1Q+ Kb6 Nf5 Be2 f1R Bg4 Rf4 Nf3 Bg7 d6+ Kf8 Qd5 Re7 Rf1 h1B Rd1 h2 Ra4 Qe8 d8N Rd7 Ra1 Bg2 Ra2 h1R Ra3 Re7 d7 Rh3 Nd6 Rd4 Ra1 Qe3 Ra4 Qg1 Ra3 Ng3 Be4 Nf5 Ra4 Bf1 Ra2 Bc4 Ra3 Rf7 Ra4 Ba2 e7+ Kg8 Ra3 Qf8 e8Q a4 Ra8 Ra5 b8Q Rc5 Qee5 Bb7 Ra6 Rcc4 Rb3 Ba8 N8b7 Qc8 Rb5 Kf8 d8Q+ Ne8 Qd7 Nc7 Q7c6 Rb4 Qc3 Rbc4 Qa5 Rb4 Qb3 Re7 Qed5 Re5 Qc6 Rc5 Qcd5 Rcc4 Nf7 Ne8 Qbe5 Nc7 Nfd6
r2rnR1N/1B1n4/p1Rn2R1/B7/br1r1N1q/QQ3qbk/Q4B1p/1K1NN3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 c5 Kc2 f5 b4 h5 g4 a6 e4 f3 e5 f2 b6 h3 b7 h2 b5 h4 g5 c4 e6+ Ke7 b6 f4 g6 Kf6 d6 Kf5 d5 c3 g7 h3 d7 f3 d6 Kg4 e7 Nc6 b8B Ra7 e8Q Qh4 d8N Bd7 b7 Bc8 d7 Ba3 Bc7 Ne5 b8R Nf6 Ba5 Bd6 Ne6 Ra8 d8N Bd7 Qe7 Ne8 Bg2 f1Q Be3 Ba4+ Kc1 c2 Nf4 Qff2 Nf7 Nd7 Nc3 Be5 Kb2 c1R+ Qe2 Bd6 Nd1 Rc4 Rc1 Rd4 Kb1 Qf1 Qb2 f2 Qa2 Qd3+ Rc2 f1N Bb7 Ng3 Bf2 Qf3 Rc6 Ne4 Qb3 Be5 Qea3 N4d6 Rd8 Rg8 Nh8 Rb4 Nh5 Bg3 Nf4 Nef6 Rf8 Nfe8 Nge2 Rd8 Rg1 h1R Nd3 h2 Nef4 Ra8 Rg2 Re1 Rg1 Ree4 Ne1 Red4 Rf7 Rf8 g8Q+ Ng7 Rf5 Rfd8 Qc4 Nge8 Rf8 Re4 Qc2 Rec4 Qca2 Rd4 Ne6 Kh3 Rg2 Bf4 Rg6 Bg3 Nf4+
2B4N/b1q1Q2p/qBrQN3/n1Qb3K/2n1RN1B/6Nr/1Rp5/kbb2rR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 Ke5 e4 Kd4 g4 c5 g5 f5 e5 a5 d6 a4 d7 a3 b6 h3 b5 a2 g6 c4 b7 h2 b6 c3 g7 c2 e6 Ra7 e7 Qc7 e8Q Nf6 d8B Bb4 g8N Nfd7 Bh4 Ra8 Nh3 Ra3+ Nc3 Nc6 b8Q Be7 b7 Nb6 Rg1 Nc4 Qa7+ Bc5 b8R Be6 Rb2 N6a5 Nh6 h1B+ Bg2 Rb3 Qe7 Rc8 Nf7 Ra3 Rab1 a1B Nh8 Bf7 Rb4 Bb2 d3 Be6 Ne4 Bd5 Bd2 Bc1 R1b2 Be6 Qb6 Bg8 Qb5 Ba7 Ng3 Be6 Be3+ Kc3 d4 Bd5+ Kf2 f3 Qbc5 f4 Bf1 Bf7 d5 Rb3 d6 Bd5 Ke1 f2+ Ke2 Bf7 d7 Bhd5 Bg2 f1R d8N Bg8 Ne6 Ra3 Ra2 Rb3 Raa4 Kb2 Bf3 Kb1 Bg4 Kb2 Ra2+ Kb1 Rb2+ Ka1 Qdd4 Bf7 Qcd6 Bg8 Qc3 Bf7 Bb6 f3+ Kd3 f2 Ke2 Ra3 Nhf4 Rb3 Qe3 Rd3 Qec5 Ra3 Ne4 Rh3 Ng3 Ne3 Nfg6 Ba2 Kf3 Bb1 Bf5 Qc6+ Re4 Re1 Nd8 Bd5 Kf4 f1Q+ Kg5 Qa6 Bd7 Nec4+ Kh5 Rf1 Ne6 Qcb7 Ngf4 Rc6 Bc8 Qd7 Qf7 Qc7 Qfe7
nQ2Q2b/1r2B2p/q1n2r2/RB1b1p2/3B1r2/b3N1bR/1R2NB1k/N1K2Qq1 b - - 0 1 illegal: No possible last move, all moves rejected
Q1NqQ3/3bp1bq/R4nn1/R1Kpr1RB/Q2n3B/3r4/k1N2r2/n1B1BN2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 h5 Kc4 a5 g4 d5+ Kc5 h3 b4 h2 c4 d3 f4 a4 b6 d2 b5 h4 f6 Ke6 g5 a3 f5+ Ke5 f7 h3 f6 a2 g6 Bg4 b7 Nc6 b8B+ Ke4 b6 Ra7 b7 Rh5 g7 Qe8 Bg3 Ra6 b8B Rh4 Be1 Nd4 Qa4 d1R Bbg3 Rd3 Ne2 Qd8 Na3 Bd7 Nc2 Rh5 Bh4 Re5 Rg1 h1Q Rg5 h2 Ng3+ Kf3 Bh3 Rae6 Nf1 Ke2 Rg6 Kd1 Bg4+ Re2 Rg5 Re5 Bh5 Qe4 Rg6 h1N Rg5 Nf2 Rg6 Nh6 g8R Bg7 f8Q Nh3 f7 Nf4 Qe8 Ng4 f8Q Rf2 Ra6 Qh7 Ra5 Bh8 Rg5 Ng6 Rb1 a1N Rb6 Bg7 Rba6 Rf6 Kb4 Rf2 c5 Ne2 c6 Nf6 Rg4 Nd4 c7 Rfe2 c8N Rg2 Bh6 Rf2 Rg5+ Kc1 Kc5 Kb2 Rg2 Kb1 Bc1 Bh3 Rg5 Bf5 Qec6 Bg4 Qa8 Bd7 Bcd2 Kb2 Qe8 Kb1 Bf4 Kb2 Bc1+ Kb1 Na3+ Ka2 Nc2+
2N2Q2/n1Np1n2/K1b2rn1/1RB1Q3/Np5Q/1n3q1r/qQqB4/2bBRR1k b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 f4 g5 c4 e5 h4 b3 a4 g4 a5 b2 a6 b6 h6 d3 f6 d2 f7 g3 c5 g2 h5 Nf6 a7 Nh7 f5 Ke3 f6 Kf2 c6 e4 c7 e3 Nf3 g1Q Nd4 e2 Qb3 e1N Be2 Kg2 Nc3 b1N Ne6 d1Q Bd2 Qc2 Na4 Nf3 Qb2 Qgd1 Rf1 Ba3 f8B Bb7 c8N Nfg5 f7 Nc6 Bc5 Nf8 h7 Ng6 f8Q Nf7 Bg1 Kh1 h6 Qe7 Bh5 Qf3 Nc7 Qe6 Qe5 Rb8 a8R Qea2 Ra5 Bc1 Re1 Ba8 Ka6 Na7 Rb5 Bc6 Qb2 Qfc3 Bd1 Qf3 Qe7 Rf8 h8Q Rb7 h7 Rb8 Bde3 Nd2 Qhe5 Nb3 Bd2 Rh8 Qf8 Ra8 Rc5 b5 Rf1 b4 Rb5 Rg8 Re1 Rg7 h8Q+ Rh7 Rb1 Rh3 Qh4 Rb8 Nb6 Re8 Nc8 Re6 Rf1 Rf6 Be2 Rf4 Qbd4 Bb2 Rbe1 Bc1 Bd1 Rf5 Qb2 Rf6 Bc5+
QN5k/2p3q1/1rQ1N1qn/2r1Rb2/nN1R1B1p/RrB1brR1/6K1/2q3QB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 d4 Kf7 g4 Kg7 b4 a5 e4 h5 g5 h3 b6 a4 e5 h2 d6 h4 b5 f3 d5 a3 e6 a2 b7 f4 g6 Nf6 e7 Ra6 e8Q Rh6 d7 Rb6 d6 Kh8 g7+ Kg8 Na3 Rg6 Nh3 Rc6 b6 Rc5 Ng5 Na6 Bg2 Ng4+ Kf1 f2 b8Q Re6 b7 Qf6 d8R Nh6 d7 Rb6 Nc2 Qg6 Qa8 Rb3 Rg1 h1R b8N Rb6 Qde1 Rh3 Ne6 Rhb3 Nb4 Kh7 g8R Bg7 Qf3 Bd4 Bh1 Be3 Rf8 Rcc6 Qd5 Nc5 Rg3 Na4 Rf5 Rc5 Kg2 f1R Qa8 Rf3 Qc6 Rd5 Re5 Rc5 Nf8+ Kh8 Qg1 Ba6 Bb2 Bd3 Bc3 Bf5 Ne6+ Ng8 Rd1 a1Q Rd4 Qc1 Rc8 Qg7 d8B Qb1 Nf8 Nh6 Bg5 Qe4 Qa8 Qc6 Qd7 Qcg6 Qb5 Rf1 Qbc6 f3+ Kh2 f2 Kg2 Rfb1 Bf4 f1Q+ Kh2 Qc4 Kg2 Rf1 Rcd8 Rf3 Ne6+ Qf8 Rd3 Qfg8 R8d4 Q8g7 Bd2 Qc1 Be1 Rb1 Ra3 Rb3 Bc3
NKQ1rR1b/nBp4Q/pn5Q/4r3/1qn2R2/1q2RN2/3k1nRN/B1bb1B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Bh3 Kd7 Kf2 Kd6 d4 g5 b4 f5 e4 f3 Ke3 f2 b6 f1Q e5+ Ke7 b7 f4+ Ke4 f3 b5 g3 b6 f2 e6 Kd6 e7 a6 e8B g2 Ra3 g4 Qd3 g3 Bb2 Nh6 Ba1 Bg7 Nd2 Qc1 Bc6 Qc3 Nf1 Nd7 b8R Qg5 b7 Ke7 d6+ Kf6 d5 Nf8 d7 Qd2 d8R Kg5 d6 Qf4+ Kd5 Nf7 d7 Nd6 Re8 Bh6 Ra2 Qfb4 d8Q+ Kf4 Re7 Bg5 Rf7+ Bf5 Nf3 g1N Bg2 Qca3 h4 Nh3 h5 Nd7 h6 Nc8 h7 Na7 N1h2 f1N Qf6 Rd8 h8Q Nd2 Re1 Qaa4 Bf1 g2 Re8 g1B Qfh6 Bd4 Rc8 Bc3 b8N Nc4 Rg2 Qab3 Qc2 Nf2 Qg8 Nc5+ Nd7 Na4 Re6 Rf8 Nb6 Bh8 Rce8 Rb8 Na8 Rc8 Rff6 Rf7 Qgh7 Re7 Ref8 Rce8 Re2 Re6 Qd7 Re4 Qc8 R4e7 Re1 Re2 Qb1 Ke3 R6f7 Bc2 Rf6 Bd1 Qbh7 Qb2 Rf5 Kd3 R5f6+ Kc3 R6f7 Bc1 Rf4 R2e4 Re3+ Kc2 R4f5 Q2c3 R5f7 Qbb3 Rf4 Nab6+ Kc5 Nb5 Bd5 Qcb4+ Kc6 Na7+ Kb7 Nb5 Kb8 Na7 Nh4 Kd2 Bb7 R4e5 N4f3+
4NN2/p1RrB1K1/3q2B1/2rQ1Qn1/Rn4R1/3Bqpn1/4Q1Nn/k1bbNq2 b - - 0 1 illegal: No possible last move, all moves rejected
2Kn1rq1/4NB1b/k1NQn2R/1N4b1/3Bp3/Q1R2rb1/1N1Bpb2/2R1Qb1b b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 Kc7 g4 Kb7 d4 h5 f4 a4 b4 h3 f5 c4 g5 a3 d6 c3 d5 h2 d7 h4 Ke6 c2 g6 e3 g7 h3 f6 a2 f7 Nf6 g8N Ra3 b6 Nc6 b5 Ng4 d6 Ra4 Nc3 Ra5 Bc4 e2 Na4 Nf6 Qe1 Rh7 Bd2 c1B Nf3 Ra8 Nb2 Ne4 Nd4 Bh6 f8B Be3 Bg7 Bf2 Rb1 a1B Ba2 Kb8 b7 Ka7 b6+ Ka6 b8Q Rh5 b7 Rf5 Bf6 Rf3 Nb5 Qe8 Bd4 Nd8+ Kd5 e5 Ne7 Qh8 Qc7 Qf8 b8R Ng5 Qc3 e4 Ke5 Qg8 Bf7 Nge6 Qe3 Bb7 Rc8 Bd5 Rc3 Bb3 Rg1 h1B Rg6 h2 Rh6 Bg2 Qd3 Nb7 d8N h1B d7 Bf1 Ndc6 Rf8 d8Q Bc4 Qc7 Nbd8 Kd6 Bg3+ Kd7 Ba2 Bg5 Be3 Kc8 Bef2 Bd2 Bd5 Nc4 Bb2 Qd6 Bc1 Nb2 Bb3 Bg5 Bcf4 Rbc1 Ba2 Bgf6 Bg5 Be3 Bd5 Bfd4 Nc7 Bg6 Qh7 Qb1 Bg8 Bd2 Nce6 Bf7 Qh8 Be5 Bh7 Qa2+ Kb6 Qb3 Ka6 Bd4 Qg8 Qba3+
RNB4Q/3bR1Qn/1KN1Rnq1/1nN1b1p1/krb1Q3/n5B1/2p2QB1/1r3b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 g5 e4 a5 h4 c5 d4 f5 b6 c4 h5 a4 h6 a3 b7 c3 b5 f3 Ke3 f2 e5 a2 e6+ Kd6 e7 c2 e8B g3 b6 g2 h7 Nc6 b8N Nge7 b7 Ra5 Na3 Qb6 Qe1 Qc5 Nf3 g1N Ne5 Qb6 Bd7 Rb5 Bg2 f1B Qf2 Rb4 Rh6+ Ng6 Be6 Na7 Nec6 Rg8 h8Q Bd7 Qg7 f4+ Ke4 f3 Bf4+ Ne5 Rd1 a1N Re1 Ne2 Bg3 Nf4 Beh3+ Kc7 Re6 Bd6 Bg4 Qa6 Nb5+ Kb6 Nc7 Neg6 Re3 Be5 d6 Bc4 d5 Nf8 Re7 Qb5 Nca6 Nb3 Re2+ Nd4 Re3 Be6 d7 Nh5 d8R Bd7 d6 Nh7 Re2 N5f6+ Ke3 Be8 Bc8 Bd7 Rf8 Qa5 Rfe8 Kb5 Re1 Bf5 d7 Qb6 d8Q Ka4 Qd5 Bd7 Qe4 Nab5 Re6 Na3 R8e7 Qd8 Ra1 Qe8 Ra2 Qg6 Ra1 Nb5 Ra2 Na7 Ra1 Bf4+ Kd4 Be5+ Kc5 Nb5 Kb6 Rf8 Qfe2 f2 Qe1 f1B Qf2 Qe8 Qef3 Rb1 Q3e2 Ba2 Nd8 Qg6 Nc5+ Kb4 Bh1 Nh5 Bd5 Rf4 Be4 Bc6 Nbd7 N5f6 Qef3 Nf8 Qh1 Bac4 Qhh8 Bb3 Bg2 N8h7 Ra2 Rd1 Ra1 Nb1 Ra8 Re1 Na6+ Ka4 b8Q N1a3 Qb7 Rb4 Ndb8 Bd7 Qe4 Rb1 Ndc6 Bbc4 Nc5#
bB2K2R/3Q3Q/2k3Br/3R2b1/p1bRn1p1/N3q1Bp/QN1q4/N2rQnq1 b - - 0 1 illegal: No proof kernel
1r2N3/1k2rBn1/3bR3/q4pKN/3QpRRB/1QnN1QB1/3N1p2/1nrq3b b - - 0 1 illegal: No proof kernel
qR4B1/3Nr2R/q2N2br/Q2p4/p4NnQ/1Bn2Kbp/1R1r1BQ1/3Nb2k b - - 0 1 illegal: No possible last move
2BNq1B1/Qb2Q2p/1R2nb2/1B6/1qpR3R/1p2k1N1/1B1Q1r1r/n1K1nr1N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 a4 c5 f4 e5 g4 b5 a5 b3 a6 b2 g5 h3 g6 h2 g7 e4 a7 b4 f6 b3 f5 Ne7 g8B Bg7 f7 Ng6 f8Q+ Qe7 f6 Na6 f7 Be5 Nc3 b1Q Bb2 Nb4 Nh3 Na6 Nf2 Bb7 Qg7 Qd8 Ne2 Qe8 Ng3 Nb4 Bb5 c4 f8R Qa2 Kc1 e3 Rf4 e2 Qd2 e1N Qf7 Rd8 a8B Nf8 Rh4 Qa7 Ra6+ Qb6 Rf1 Nbc2 Nfh1 Rb8 Rff4 Bf6 Qg7 Ne6 Qf7 Bc8 Qa7 Na1 Bac6 Bb7 Bd7 Rc8 Re4 Rc6 Bc8 Qc5 Rb6 Qb4 Bf7 Rf8 Bg8 Bh8 Reg4 Rf1 Rf4 Ke7 Rfg4 Kf6 d6 Rc7 Rf4+ Kg5 d7 Bf6 d8N Rf7 d5 Rf8 d6 Rf7 Nf2 h1R d7 Rh2 Rd4+ Kg6 Nge4 Kf5 Nh1 Rf8 Rh3 Kg4 Rh4+ Kf3 Neg3 Rff2 Nc6 Rf1 d8Q Rf7 Qe7 Rf8 Qc2 Ke3 Qd1 Bg7 Qc2 R8f2 Nd8 Bf6 Qd2+
k2R1B1r/1r4p1/1rnqRbpp/4R3/nbBN1q2/Q2N4/b3QB2/2B1NQK1 b - - 0 1 illegal: No proof kernel
4q3/kNK1pBN1/5Q2/2bR1bR1/q1r1nN2/Qp1b2BR/pB4r1/2B1Qrn1 b - - 0 1 illegal: No proof kernel
3r2RQ/2p3b1/rB1Rb2n/B2Q1pK1/1N2R3/2N1B1b1/Bq2qNpn/4nk1Q b - - 0 1 illegal: No possible last move
Q4B2/3n1Q1p/n2R2RK/2Nr1p2/2pkN3/bnnbnBR1/2Q5/1B1N1rqN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 Ke5 e4 a5 d4+ Kf6 g4 c5 e5+ Kg5 e6 Kf6 e7 c4 e8B a4 g5+ Kf5 d6 f6 g6 a3 g7 a2 d7 h3 b6 h2 d5 Ke5 Kg4 f5+ Kh5 f3 b7 f2 b5 Ra4 b6 Bc5 d6 Qe7 d8N Ke4 d7 Ra8 Nc3+ Ke5 Bd3 f1N Bh6 Ne3 Nf7+ Kd4 d8R+ Nd7 b8N Qd6 b7 Qd5 Ng5 Ng2 N1h3 Ne7 g8Q Nc6 Qf7 Nb4 Qc2 Ne3 Rag1 a1N Nf2 Nb3 Bf8 Qg2 Ncd1 Ra1 Kh6 Na6 Nge4 Qf1 Rg8 Ba3 Rhg1 h1N R1g6 Ng3 Nh1 Ne2 Rg3 Nc3 R8g6 Nac5 Na6 Qg1 b8Q Bb7 Qa8 Rc1 Nb2 Rf1 Nd1 Bd5 Qb2 Bc6 Bb1 Bd5 Qc2 Bb7 Nb4 Na6 Nd3 Rg8 Ndc5 Rg7 Nd6 Bf3 Nde4 Be2 Rb8 Bd3 Rbb6 Ndb8 Bc6 Nd7 Bd5 Rg8 Rbd6 Rh8 Be7 Re8 Bf8 Re7 Ng5 Re5 Bf3+ Rd5 Nge4
QN1r1NQn/R2nBr1b/1rp2p2/Rp5B/3QNK2/2r1B3/kb5R/qn3N2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 h4 b5 d4+ Kd6 a4 g5 e5+ Kd7 h6 b3 e6+ Kd6 h7 f6 h5 b2 e7 Nd7 e8Q Qe7 a5 Qd8 a6 Nb6 a7 Na4 h6 Bg7 Be3 Bf5 Nd2 b1N Nh3 Bf8 Rh2 Nc5 Be2 Ne7 Nf1 Nd7 Ra5 Ng6 Nf2 Rb8 a8R Rb6 R8a7 Qa8 Qd8 Rg8 h8Q Be4+ Kg4 f3 h7 Rg7 Qd3 Rf7 Qg8 Nh8 Kg3 g4 Kf4 g3 Qe8 Qb7 Qa8 g2 Qd2 g1R Qc3 Ke7 d6+ Ke6 Bd1 Bd3 Ne4 f2 Bh5 Kd5 Qb2 Kc4 d5 Rh1 Qa1 Kb3 Qd4 Nb8 d7 Qa6 d8N Nd7 Ne6 Ba3 d6 Bb2 Nd8 Rg1 Nc6 Rg3 Nb8 c6 Qg4 Nc5 d7 Rh3 d8B Nd7 Qg8 Bc2 Bd2 Rc3 Be7 Bd3 Ba3 Ka2 Be3 Bc2 Nfd2 f1R+ Bf2 Rg1 Nf1 Rg5 Bg1 Re5 Be3 Re8 Kf3 Ng6 h8N Rd8 Kg3 Nh4 Ng6 Bd3 Nf8 Ng6 Bg1 Nh8 Be3 Bc2 Kf4 Bd3 Ned2 Bh7 Ne4 Rc1 Ra4 Rc3 Bc5+ Kb3 Ra1 Qa2 Bd6 Nd2 Bc5 Qb1 R1a6 Qa1 Ra5 Nb1 Ba3 Ka2 Be7+
KRQ2B2/5qrQ/p1n1b2b/pNb5/2k2nB1/2BB1pr1/4RN1N/b2rQ1R1 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b6 a4 Nf6 a5 bxa5 Qb3 Ng8 Qc2 Qf6 Qd1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 g5 d4+ Kb4 h6 c5 h5 f3 h7 a6 d6 f5+ Kd5 f4 e4 g4 d7 g3 e5 c4 e6 f2 e7 f3 e8B g2 h6 c3 Qe1 Qb6 d8N Qa7 Bd7 Qb7+ Nc6+ Kb3 Bd3 f1R Rh2 c2 Nh3 g1B Bg4 Be7 Nc3 Bh4 Nb5 Qa7 Ne5 Qc7 Re2 Qc3 Nf2 Bd7 Bg5 c1B Be7 Bc8 Bf8 Bd8 Rb1 Ka2 b4+ Qd2 Kd6 Ba3 d5 Bg5 Kc7 Bb2 d6 Kb3 d7 Nc6 d8Q Be6 Kb7 Qf4 Qc8 Nf6 Ra1 Rg8 h8B Qc4 h7 Nd5 Bhg7 Bf4 h8Q Bh6 Qh7 Nf4 Rc1 Ba1 Bh8 Nd4 Bf6 Rb8+ Ka7 Rb6 Ka8 Rg7 Qd2 Rd1 Bgf5 Rg2 Nd6 Bd7 b5 Nd5 Nh3 Nf4 Ng4 Rf1 Nh2 Rg3 Bg4 Rb7 b6 Nc6 Bc3 Bc5 Nb5 Qg8 Nf2 Be6 Rd1 Rg7 b7 Qf7 b8R Re1 Rc1 Reg1 Rc2 Rc1 Re1 Rd1 Rg1 Nh5 Qe1 Nf4 Bdf5 Kc4 Re2 Nd8 Bc2 Nc6 Bd3+
R1NB3k/Q1nBRp2/1N1n1b2/B1r1p2Q/1R2b1K1/2n2N2/p6Q/2qBnr1r b - - 0 1 illegal: No possible last move, all moves rejected
R4rRN/1nQ5/B2q1N1Q/pB1nRb2/rp1q1bb1/Q2Rb3/4N2p/1kB1K3 b - - 0 1 illegal: No proof kernel
4KQR1/1RQ2N2/n1rppq1B/2kQ1Rq1/1N2q2r/2pB1Bn1/1b1B4/q4N1b b - - 0 1 illegal: No possible last move, all moves rejected
1RQQ1N2/bq1p4/b1B1b2N/1b1n4/Q1r3n1/qRrRpB1K/1p5B/2k3RN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 f4 Kf6 Kf2 b5 Kg2 e5 c4 g5 a4 b3 a5 b4 c5 e4 h6 g4 h7 b2 c6 b3 a6 g3 h5 d3 c7 d2 h6 Ra7 Nh3 Bg7 Nc3 b1B Nf2 b2 Be2 Bb7 c8Q Qe7 Rh3 Qb4 Nh1 Nc6 Nb5 Nce7 Qa4 d1B Bf3 Qa3 Nd6 Bb3 Nf7 Bd3 Bd2 B3d5 Rg1 Be6 Qd8 Ra8 a7 Rc8 a8B Bba6 Bc6 Bdb5 Bb4 Rc7 Bd6 Bf8 Qc8 Nd5 Qd8+ Nge7 Qc8 Ng6 Qd8+ Be7 Qc8 Rf8 h8R Ne5 h7 Ng4 Nh6 Rf7 Re8 Rg7 h8R e3 Rh4 Rh7 Kh3 g2 Rhg8 Bf8 Rd1 g1Q Rd3 Qd1 Rg5 Qdb3 Rhh5 Nh2 Rg1 Ng4 Rg5 Qbb4 Rb3 Rf7 Rd1 Rg7 Rdd3 Be7 Qd8 Rc8 Bb8 Rc7 Qc8 Bc5 Rg8 Ba7 Rg6+ Ke7 f6+ Kd6 f7 Kc5 f8Q+ Kc4 Qfd8 Rf7 Rh8 Rf5 Rg7 Re5 f5 Re4 f6 Rd4 Rd2 Rd3 f7 Rc3 Bb7 Rc5 f8N Rc6 Bh2 Rc5 Rg2 Kd3 Bc6 Rc4 Rg1 Kd2 Rd1+ Kc2 Rd3 Kc1 Nf5 Nh6 Rg2 Ng4 Nh6 Rc2 Rg8 R2c3 Rg1+ Kc2 Qda5 Rc5 Ng6 Bc4 Qcc7 Qb7 Rb8 Bcb5 Qc8 R5c4 Qb6 Qa2 Qbd8 Qa3 Bd1+ Kb1 Nf8 Kc1 Bf3+
2QK2B1/1RnbQr2/n7/3pBB1q/1NRb2n1/R1pb1N1k/1N2rQpp/2N5 b - - 0 1 illegal: No proof kernel
7r/3rB2p/B1RQ4/2p4k/5n1B/n1pb2Np/rbRNqN1Q/2bN1RQK b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 d4 Kf7 f4 e5 Kf2 a5 b4 c5 g4 e4 Kg2 e3 d5 e2 b6 e1R f6 Kg6 g5 c3 f7 a4 b5 a3 f5+ Kg7 d6 a2 d7 Be7 f8N Ra6 g6 Re3 b7 Kh6 f6 Ra4 f7 Re4 b6 Qc7 d8R Be6 g7 Bd7 Ng6 Rc4 f8B Rd4 Rh2 h3+ Kh1 Kg5 Ba6 Rd3 Nf4 Rd6 Rc8 Rde6 Nd3 Rh6 Nb2 Nf6 g8N Bf5 Nd2 Qe5 Ne2 Kh5 Qg1 Nc6 b8Q Nb4 b7 Nfd5 Nd1 Rd6 Nh6 Bd3 Ng4 Nf4 Rc6 Nc2 Ngf2 Bg5 Be7 Rd7 Qd6 Na3 b8Q Re4 Rb1 a1B Rg2 Bb2 Ng3+ Kh4 Ra1 Re2 Ndf1 Qe6 Ng4 Nh5 Qf8 Nf6 Nde3 Re1 Rc2 Nd5 Qff2 Qe5 Qfh2 Qe6 Nf2 Qe5 Nc4 Qe2 Bf4 Rd1 Nfe3 Rc1 Be5 Rf1 B5f6 Re1 Ngf5+ Kh5 Rd1 Bf4 Bh4 Bg5 Rdd2 Rb1 Rd1 Ra1 Rf1 Ra2 Ned1 Bgc1 Nd2 Nf4 Ng3#
1R1r4/1p2nQ1p/1B2N2p/R2B1R1Q/b3rr1Q/3BN2K/1k1qp3/nn1N1Bb1 b - - 0 1 legal: proof: e4 c5 h4 a5 b4 axb4 d4 f5 dxc5 Ra7 exf5 Ra6 h5 Ra8 h6 gxh6 c4 Kf7 a4 Kf6 f4 e5 Kf2 d5 Kg3 e4 a5 b3 c6 d4 c5 e3 c7 b2 a6 d3 a7 d2 c6 Bd7 c8Q Qe7 c7 Qe8 Qd8+ Be7 c8B Qg6+ Kh3 Qf7 g4 Qf8 g5+ Kg7 g6 Kf6 g7 Ba4 Nc3 b1R Qh5 d1N Nge2 Nd7 Ng3 e2 Be3 Bc6 Bb6 Nb8 Ra5 Rb4 Bd7 Ba4 Bb5 Rd4 Bd3 Re4 Rh2 Nc6 Rf2 Rb8 a8R Nb4 Rf3 Rc8 Rb8 Nc2 Rf2 Na1 Rf3 Ne3 Nd1 Nec2 Rf2 Rcc4 Rf3 Re5 Qd4 Bd8 Qf2 Ne7 g8B Rb4 Bd5 Na3 Qh2 Ree4 Qh4+ Kg7 f6+ Kg6 f7 Nb1 Qh5+ Kf6 f5 Ke5 Qf2 Qg8 f8Q Qg5 Qff7 Qd2 Qh2 Rf4 Qh4 Rf8 f6 Rbe4 Nf5 Bc7 Rf2 Rd8 Nfe3 Bd6 Qh1 Bc5 Qf3 Kd4 Q3h5 Rg4 Rf5 Rgf4 Nb2 Kc3 Nbd1+ Kb4 Qfg6 Ka3 f7 Bd4 f8N Bc5 Qf7 Bd4 Nc3 Kb2 Ne6 Bc5 Nc2 Bf2 Ne3 Bg1 Ncd1+
BR3BK1/b2r2N1/3pQp1k/8/N1pqR3/q1rn1Q1Q/R1nqbNpQ/7B b - - 0 1 illegal: No possible last move, all moves rejected
3B4/bN1p1b2/1np3Qr/1r1BBnb1/N1p1BRN1/6qk/RpR2q2/QK5Q b - - 0 1 illegal: No proof kernel
4bbKb/5nN1/1QBNqqRB/7k/3rRB2/N4p2/1qq2NNr/1nR2N2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 c5 Kf3 g5 Ke4 f5+ Ke5 Kf7 h4 c4 d4 f3 e4 c3 h6 Kg6 b6 b3 d6 f4 h7 f2 d7 c2 Ke6 g4 e5 f3 h5+ Kg7 b7 b2 h6+ Kg6 d5 g3 d6 g2 Ra4 Qh4 Na3 b1Q Ne2 g1Q Qd4 Nc6 b8B Ba6 d8R Nf6 d7 Ne8 Ng3 Qg5 Qb6 Ne7 Bb5 f1Q Bc6 Qbb5 Re4 Qe1 Nf1 Rg8 h8N+ Kh7 Kf7 Qb2 e6 Qge5 Ng6 Qee3 Nf4 Rg3 Ng2 Nd5 e7 Bb5 Bc7 Q5g5 Bf4 Rh3 Rc8 Qh2 d8N Ra6 Nb7 Ra4 Rg1 Nc3 Nc5 Nb1 Nd3 Rd4 Nf2 Qe5 Bd2 c1B Rc7 Qc2 Rc8 Bb2 Bc1 Ng7 e8N Ne6 Ng7 Rh4 Nf5 Qf6+ Ke8 Kg6 h7 Nd8 h8N+ Kh5 Nf7 Qeb3 N7d6 Nf7 Bh6 Bc3 Bcf4 Qbb2 Rc7 Qg3 Rc8 Rh2 Rc7 Qh3 Rc8 Bg7 Rc7 Bh8 Kf8 Bb4 Kg8 Ba4 Nb7 Bf8 Nbd6 Ne5 Rg7 Nf7 Rg6 Qg4 Nd2 Bb5 Rc1 Ba4 Nf1 Qh3 Bd5 Be8 Bc6 Qg4 Ne7 Qd7 Nef5 Qde6 Ng7+
4b1nR/KRN3N1/R2q1rN1/B1B2r1Q/5bnN/n2q1pk1/n4N2/N3Bb2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 a6 b4 Kd7 b6 Rh6 b7 Rh8 b5 Nh6 b6 Ke7 Bh3 Ng8 Bf5 Ke8 Bd3 Qf6 Bc4 Qd8 Bb5+ axb5 Kf2 Kd7 d4 Kd6 h4 c5 e4 g5 h6 f5 h7 b4 h5 b3 h6 b2 e5+ Ke7 d6+ Ke6 d5+ Kf7 e6+ Kg6 e7 f3 Ke3 c4 Kd4 g4 Kc5 g3 e8N f2 Ra6 f1N Be3 c3 Nh3 c2 Ng7 c1N Na3 b1B Nf2 f4 Nc2 Kg5 Na1 Nc6 b8B g2 b7 g1Q Qf3 Qe7 Kb6 Bd7 Bc5 Be8 d7 Na5 d8N Ne3 d6 Na2 d7 Qf1 Rh2 Qh3 Nde6+ Kh4 d8B Ng4 Nc7 Bd3 Ba7 Bdb5 b8R Bf1 Rb7 Rb8 Qd5 Kg3 Qh5 Qe5 Bb4 Bd6 Be1 f3 Rh1 Qe2 Rh2 Qd3 Rh1 Bf4 Rh2 Ne7 Rh1 Rf8 h8N Qh4 h7 Rf5 Ng6 Qh2 h8N Ng8 Nh4 Rc8 N8g6 Ra8 Rb8 Nc4+ Kb7 Na3 Bc5 Ra7+ Kb6 Ra8 Rb7 Rb8 Ka7 Rc8 Nd5 Rc6 Bda5 Rd6 Nc7 Rdf6 Ng2 Qh4 Rh2 Qg5 N2h4 Qh6 Nge6 Qf8 Ng7 Qfd6 Qg5 Q3d4 Ng2 Qd3 Rh8 Be2 N2h4 Bf1 Qh5
B5Q1/1rR3r1/2NnN2K/1rk2pr1/n7/Nrb2pN1/RBbB2Nb/4RN2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qb3 a4 Qd1 Qf6 Qc2 Qa6 Qd1 Qa5 bxa5 Bf5 Ra2 Bh3 Ra1 Bc8 Kf2 Kd7 Kf3 Kd6 g4 f5 d4 h5 e4 c5 g5 a3 a6 h3 b6 h4 a7 a2 b7 h2 g6 h3 g7 c4 e5+ Kc7 e6 Kd6 e7 c3 e8N+ Ke7 d6+ Kd7 d5 c2 Bg2 Nf6 g8N Bg7 Ne2 Ne4 Ngf6+ Kd8 d7 Ke7 d8N Rf8 Ne6 Na6 b8N Rf7 Qg1 Nd6 Na3 Nc5 Ng4 Bd7 Ng3 Be5 Bd2 c1R N8c7 Rb1 Ne3 Ba4 Nef1 Rb7 Re1 a1B Nc6+ Kd7 Rc1 Rg8 a8R Bc2 Ra7 Bab2 Ra1 Bbc3 Ra2 Rb3 Rb7 Rfg7 Ra7 Nde4 d6 Na4 Nd5+ Rb7 Nde3 Rg5 Qf2 R8g7 Rg1 h1R Qe1 Ke8 d7+ Kf7 d8B h2 Qe2 Nd6 Qc4 Ke8 Bf6 Kd7 Ned8 Kc7 Qg8 Kb6 Ne6 Rgf7 Kf2 Rfg7 Bd5 f3 Ng2 Rb8 Rc7 Rb7 Nfe3 Bf4 Re1 Rg1 Nef1 h1R Be4 Bfe5 Ke3 Rh6 Nh5 Bh2 Nhg3 Rh4 Bd5 Rb4 Be4 Rb3 Kf4 Bb4 Bb2 Bc3 Nf8 Re7 Bd5 Re5 Ne6 Rg7 Be4 Reb5 Bd5 Rf7 Kg5 Rg7+ Kh6 Rg5 Ngf4 Rg2 Nh1 R2g3 Ng2 Rg7 Be4 R3g5 Nhg3 Rb8 Ne5 Bd4 Nef4 Bc3 Ba8 Rb7 Nc6 Kc5 Ne6+
1b3Nn1/rBR3q1/R1n1Kb1q/BR2N3/2N1r1Nk/q1qB3n/N3b1Q1/2N3r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 g4 f5 d4 c5 b4 h5 e4 c4 d6 h3 d7 h4 b6 h2 b5 a4 d5 a3 b7 c3 b6 c2 d6 h3 Qe2 a2 Nd2 f3 Qg2 f4 Ne2 Qc7 d8N Rh7 Nc6 Rh5 Nb4 Qc6 d7 Ra3 d8N Nh6 Bb2 c1R Bc3 Ra7 Rg1 Qg6 Ndc6 h1Q Kd5 f2 e5 h2 e6 f3 e7 Rh4 e8N Bc5 Nf6 Bd6 Ne5 Rd1 Rc1 Bf5 Ra1 Bd3 Ke6 Re1 Nd4 Ba6 N4b3 Rd1 Bb5 f1Q Rc1 f2 Rc2 Nd7 b8N Qfd3 b7 f1Q Bc4 Qe1 Bb5 Nb6 Nd7 Nc4 b8R Na5 Nf8 Qde3 Bc6 Be2 Rb5 Bb8 Bb7 Q1g3 Rf1 Qd4 Rf4 Rg1 Nc1 Qdd3 Rc4 Qh3 Rc7 Nc6 Ndc4 a1B Ra2 Qdf3 Ra6 Qfg3 Be1 Qa3 Nba2 Bd4 Ba5 Qhc3 Ned7+ Be5 Qf2 Qg2 Qg3 h1N Qh2 Nf2 Qh1 Kf4 g5 Nh3 Qh2+ Qgg3 Qg2 Qh7 g6 Kg5 g7 Ng8 Ng6 Re4 Ngf8 Qd4 Ng4 Qgc3 Rc5 Qdd2 Rd5 Kh4 Rb5 Bf6+ Nde5 Rd4 Rc8 Qdh6 Rc7 Nge7 g8B Q7g7 Bh7 Ng8 Bc2 Re4 Bd3
2N1K1br/8/1NRb4/R1BNn3/1r1bbqkp/n2QB3/1NB4n/1RbrNN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Ke7 g6 Kf6 g7 Kg5 b6 c3 b7 c2 d6 a3 e7 h4 e8N a2 d5 h2 d7 Qc7 d8N Rh7 b5 Ra6 b6 Qc4 d6 Qa4 d7 Kh5 Ne6 Rh8 d8R Ra8 Be3 c1B N6c7 Ra5 Nd5 Ne7 g8N Rb5 Rd6 Bd7 Qd3 Nec6 Nge7 Be6 Nc8 Bf7 Nd2 Na7 Rc6 Bg8 Ned6 Nd7 b8B Rb4 b7 Nb5 Bba7 Na3 N6c4 Bd6 b8N Kg5 Rb1 a1B Bac5 Bd4 Nb2 Kh5 Bh3 Kg5 Nf1 Ne5+ Kg2 Kh5 Nd7 f3+ Kf2 f4 Bf5 Kg5 Bg6 Kg4 N7b6 Qa7 Bh7 Qc7 Ra1 Nb1 Ra5 Na3 Qb5 Qf7 Bc2 Qf6 Qd3 Qf7 Ke1 f2+ Ke2 Qf8 Nf3 Qf5 N1d2 f1R Ne1 Rg1 Nf1 f3+ Kd1 f2 Ke2 Qf4 Qh7 Ng6 Kd3 Qg3 Ke4 Ne5 Nd2 f1N Qd7+ Kh5 Kf5 Qg4+ Kf6 Qe4 Qh7+ Kg4 Kg7 Qf4 Qd3 Rg3 Rg1 h1B Ba4 Nh2 Nf1 Be4 Bc2 Rg2 Rh1 Rd2 Rg1+ Kf5 Rh1 Rd1 Rg1 Bb8 Kf8 Bd6+ Ke8 Qh6 Rg7 Qf4 Rga7 Kg4 R7a6 Nb5 Ra1 Na3 Rb1 Qg5 Ra7 Qf4 Ra5
1nb2bn1/4q3/BBQB4/rB1nnR2/1N2Brbq/1N2p1N1/2R3R1/B2kn1K1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c3 Kf7 b4 Kf6 g4 Ke5 f4+ Ke4 g5 e5 Ra2 Bd6 Kf2 h5 f6 a5 f7 h3 f8B a4 f5 d3 f6 h2 b6 a3 f7 h4 b5 h3 g6 d2 g7 Bb7 c4 Na6 c5 Bc8 b7 Rh4 b8N Rf4+ Qf3+ Kd4 b6 d1B b7 e4 Rb2 a2 Nd2 a1N Bb5 e3+ Kf1 Kc3 Nc6 Qe8 b8B Nc2 Ba7 Nb8 Bb6 Ra5 Nb4 Be7 Ra2 d5 Nb3 Qd8 Ba3 Ne1 Rf2 Qd7 Qg2 Bg4 c6 Ba6 c7 Bc8 Qe4 Bc5 Qg6 Qe8 Qc6 d4 Nd3 Qe5 Ne2+ Kc2 Rg1 h1N Bb2 h2 Ba1 Qg5 Rg2 Qd8 Ndc1 d3 Ng3+ d2 Nd3 Qf6 Be7 Qe6 f8R Qd6 Ne2 d1N Rf5 Nc3 Nb4+ Kd1 Ng3 Nd5 Bf8 Bf3 Ra2 Nf2 Rc2 Ng4 Be7 Ne5 Bf8 Be6 c8B Bd7 Bca6 h1Q+ Rg1 Qh4 Rgg2 Bg4+ Kg1 Bc8 Be7 Qd7 Bf8 Bd6 Be7 Bc7 Bec5 Bd8 Bd6 Be7 Rf8 Ngf6 g8B Qa7 Be6 Ng8 Bf5 Qb7 Rf7 Bf8 Be4 Qbe7 Rf5
5R1R/Nn1Rb3/1R3rBK/k4BBR/q2bqQ2/b7/1rNpqr1R/2N2b1n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 Kh5 Kb6 g4 e5 c4 a5 f4 h3 b4 a4 f6 h2 f5 a3 f7 e4 f6 d3 g5 d2 g6 d4 g7 a2 Bb2 e3 Bg2 e2 Qc1 d1Q Qf4 e1B+ Ne2 d3 Be4 d2 Na3 Qa4 Bf5 Ne7 g8B Nbc6 Nc2 Na5 Nc1 Bh4 Bg6 h6 B8h7 Ba6 Ba3 Rb8 c5+ Ka7 c6 Kb6 c7 Nb7 c8R Qd3 Rc7 Nf5 Rd7 Qe3 Rb1 a1B Rb2 Be7 f8R Bc5 f7 Bhe7 Rfd8 Rf8 Rb3 Qe6 Rh3 Bh8 Bb2 Qe3 Bf6 Qe2+ Qg4 Bg7 Bg5 Bb2 Rc8 Bcd4 Re8 Ba3 Rh4 Rg8 f8R Rg7 Rh8 Rf7 Ref8 Rf6 Rh3 Qc4 Qf4 Ng3+ Kg4 Qf1 Rh5 Qg2 Kh4 Qe2 Bf5 Rd8 Bhg6 Rb8 Rf1 Nh1 Rf2 Ng3 Rg2 h1R+ Rh2 Rf1 Kh3 Rf3 Kg4 Nh1 Kh4 Nd6 Kg4 Bc8 Kh4 Nb7 Kg4 Rf2+ Kh4 Ka7 b6+ Ka6 b5+ Ka5 Nb4 Nc5 Nc2 Ba6 b7 Qe5 b6 Bf1 Be6 Qe2 Bh3 Rc8 b8R Nb7 Bg4 Rc3 Be6 Rb3 Bef5 Rb2 Rh3 Ng3 Rh1 Nd6 b7 Rf7 Bf6 Qe6 Rg5 h5 Rh3 Qe2 Rh1 Nge4 Rg2 Ng3 Bg5 Rf6 Rbc8 Nde4 b8N Nd6 Rc6 Nb7 Rb6 Bad6 Bh6 Bb4 Kg5 Ba3 Qe4 h4 Qg4 h3 Qf4 Rf3 Rf2 h2 Rg2 Ne4+ Kh5 Nf2 Bg5 Ne4 Kh6 Rf2 Rg4 Ng3 Rh4 Qe5 Rh5 Qe2 Rg1 h1Q Rg2 Qeb5 Rgh2 Qe4 Re6 Qbe2 Nc6+ Kb6 Red6 Nh1 Na7+ Ka5 Rb6
k1N4q/1R3Nn1/b2q2N1/5np1/Nq1qrQ2/NR5b/K1BR1B1B/2b1nN1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kc3 c5 Kb3 Kc7 h4 Kb7 e4 a5 h5 f5 b6 g3 h6 f3 h7 g2 d6 f4 d5 a4+ Ka2 a3 b4 f2 d7 c4 e5 f3 d6 c3 e6 c2 b5 Nh6 e7 Qe8 d8R Bh3 d7 Bg4 Bd3 f1N Rh3 f2 Qd2 Ra5 Nf3 g1Q Qf4 Qg3 Be3 c1Q Bc2 Ra4 Nfd2 Nh2 Nf1 Nc6 Bd4 Qh4 Rb3 Nf3 Bc5 Qeh5 e8N Nf5 Bd4 Ne1 Be3 Rg8 h8N Qd1 Ng6 Nce7 Bd4 Rh8 Bc5 Nc8 Nd6+ Ka8 Bd4 Ng7 b7+ Kb8 Bc5 Re4 Be3 Bh3 Bc5 Kc7 b8N Ne7 Nc8+ Kb7 b6 Ka8 Na6 Qd6 Bd4 Q4g4 Nc5 Nef5 Na4 Be7 Be3 Bf6 Bc5 Bb2 Be3 Bc1 b7+ Kb8 Ncb6+ Ka7 b8B+ Kb7 Nc8+ Ka8 Ng3 f1B Bf2 Bc4 Nf1 Ba6 Rd3 Qd1 Nge7 Qb4 Qe3 Qbd2 Ng6 Rc4 Kb3 a2 Na3 Bg2 Rb1 a1Q Bc7 Qf6 Ka2 Re4 Rb7 Qb4 Rb3 Qh7 Bd6 Qg8 Bb8 Rh1 Bh2 Qh8 Qf4 Qdd2 Rf8 Qc6 d8N Bh3 Nf7 Qd3 Rd8 Qcc5 Rd5 Qd6 Rd4 Qe3 Rd1 Qed4 Rd2
1Nkn1rNn/r1B3np/1Bq2R2/2Rr2NB/1n4Kb/2NR4/1n2N1n1/1bQN4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 b4 c5 d4 a5 e4 h3 g4 h2 g5 a4 d6 a3 d5 a2 b6 c4 b7 c3 b5 c2 e5 Ra7 g6 Be7 g7 Qe8 b6 Nh6 g8N Nc6 b8B Bh4 b7 Nf7 Nc3 Ncd8 Be3 c1N Nge2 Nd3 Qc1 Nb2 Nd1 Qe6 Rg1 h1N Rg6 Ng3 Bc7 Nh5 Beb6 Ng7 Rf6 Qe8 Rb1 a1N Bh3 Nc2 Bg4 Nb4 Bh5 Qe6 Ra1 Qe8 Ra5 Qe6 Rc5 Qe8 Kg2 f3+ Kh3 f4 Kg4 f2 Ba5 f1R Bab6 Qe7 b8N+ Ke8+ e6 f3 Qe3 Qd7 Qc1 Qc6 d7+ Kf8 d6 f2 Ra5 Re1 Rc5 f1N Ne7 Ba6 Nd5 Bd3 N5c3 Bb1 e7+ Kg8 e8N Kf8 Nd4 Re5 Nde2 Rf5 Qd2 Rd5 Qc1 Nb7 d8R Ne3+ Kf3 Ng2 d7 Ke7 Kg4 Ra5 Rf5 Rf8 Nf6 Ra7 Ng8+ Ke6 Rf3 Nh8 Rd3 Rf6 Rf8 Rf3 Na6 Rf2 d8N+ Kd7 Ne6 Nd8 Ng5 Kc8 Nb8 Rff5 Rf6 Rf3 Rh6 Rf8 Rf6
nN6/1n1Kb1R1/b1r1r1br/kN1p2Bn/2b2R1R/1QRN3B/4rq1R/B5R1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 c4 Kb6 f4 e5 b4 a5 Ne2 d3 Na3 a4 Rh2 d2 Qb3 Ba6 f6 d1B Kf5 h5 Ke6 h3 g4 e4 f7 h4 g5 e3 f5 Nd7 g6 Be7 f8R Rc8 g7 Ngf6 g8R Rh6 Nf4 e2 Nd3 Nh5+ f6 e1R+ Be3+ Rc5 Rg7 Re2 Rh8 Qf8 Bg2 Bc2 Rg1 Bb1 Bf1 Ba2 Rhh7 Rf2 Bg5 Re2+ Kf5 Rg6 f7 Rge6 Rh6 Rcc6 c5+ Kc7 Rh8 Nb6 Rhh7 Na8 b6+ Kb7 Nb5 a3 Bg2 Qe8 f8R Qf7+ Kg4 Qf1 Rf4 Qf3+ Kf5 Qf2 Qa4 Bc4 Qb3 a2 Bf1 Kc8 b7+ Kd7 b8B a1N Bd6 Kc8 Be5 Kb7 Qb1 Nb3 Ba1 Na5 Qb3 Rcd6 c6+ Kb6 c7 Nb7 c8R Rc6 Rhg2 h2 Rc7 h1B Rh2 R6e3 Bh3 Be4+ Ke5 Nd6 Ke6 Nb7+ Kd7 Bg6 Nd4 Ree6 b5 Ka5 b6 Re1 Nb5 R1e2 Bf5 h3 Rh6 Ng3 Rhh4 Nh5 Rhh1 Nd8 b7 h2 b8N Nb7 Bh3 Rc2 Rg2 Rce2 Rhg1 h1R Rh2 Rb6 Rhg2 Ng3 Bf5 Rh2 Rhg4 Rh6 Rh4 Nh5 Rc5 Rbc6 Bg4 Rc8 Rgh2 Rcc6 Nb4 Bcd3 Rc3 Bc4 Nd3 Rc2 Bf5 Rce2 Bh3
1K3N1B/B3r3/R1QBnb1N/1bR3B1/1qnkBqpp/7q/2R5/Nn3rBb b - - 0 1 illegal: No proof kernel
bRRrq2q/K1ppq3/4Q2N/3Br3/bNR5/b4R2/1R1n1r1R/B2Nn1kB b - - 0 1 illegal: No proof kernel
2q1R2r/1p1BB1BN/b3q1Bq/p7/N1Q4b/2R4n/1kN1nBB1/brnRK3 b - - 0 1 illegal: No proof kernel
2r3Rr/RB1R1nQN/2r1bqr1/2nbb1Nk/1R1RRp1B/B2nN3/2Kp4/8 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 b4 Kf7 e4 g5 h4 d5 c4 a5 h6 Kg6 b6 d3 h7 d4 b5 a4 c5 a3 e5 g4 b7 f3 e6 f2 e7 f4 e8R g3 b6 a2 h5+ Kh6 c6 g2 c7 Ra6 Nh3 g1R Qg4 Bd6 Ba3 Nd7 b8R Ra7 b7 Rg2 Ng5 Be5 Nc3 Bf6 Nd1 Ra4 Re4 Be5 Ne3 Rg1 Bg2 f1B Kc1 d2+ Kc2 d1N Rh2 Kg7 h6+ Kg6 Bh1 Qf6 Rd2 Nc5 Qd7 Qc6 Qg7+ Kh5 Bg2 Bh3 c8R Ra6 Rd8 Nb2 Rd7 Bc4 Ra8 Bf7 b8R Bhe6 Rb4 Nbd3 Bh1 Qb6 Raa7 Rg4 Rg1 a1R Rgg2 Qd6 Rd1 Rc6 Rg3 Ne7 Bg2 Rhc8 h8B Ng8 h7 Nh6 Qg6+ Kh4 Nh3 Bf5 Bf1 Nc1 Ba6 Bd5 Bb7 Nf7 Bf6+ Rg5 Bd8 Qe7 Rg2 Bfe6 Qh6+ Rh5 Rg8 Qg5 Qg7 d3+ Kd2 Rh6 Be7 Rg6 h8N Nd6 Nf7 Ra2+ Ke1 Rh2 Bd8 Rh1+ Kd2 Qe7 Nh6 Qg5 Nhg4 Nf7 Nf6 Qf5 Ng1 Kg5 Be7 Rh8 Nh3+ Kh4 Nh7+ Kh5 Bh4 Qf6 N3g5 Bb3 Rh1 Bbc4 Kd1 Bcd5 Rbd4 d2 Kc2 N1d3 Rb1 Nh6 Rb5 Nf7 Rbb4
N4BBR/1Bn1B1Nn/3Br1qb/np1b3B/1NR4K/1R5p/2qQp2b/2kr4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 Kd6 g4 c5 f4 h5 Kf2 e5 g5 b5 g6 e4 a5 h3 Kg3 c4 a6 b3 f6 h2 a7 b2 g7 c3 f5 e3 f7 c2 f6 Be7 f8R Qe8 f7 Be6 Nd2 b1N Be2 Bc8 Ra3 Bf6 Rb3 Be6 Ngf3 Nc3 Ne1 Rh6 Nd3 Nc6 Nb4 Na5 Ba3 Rd8 a8B c1B Bb7 Be5+ Kh4 Nf6 Rh8 Nh7 g8B Qc6 Bg4 e2 Rf1 Qc4 Rf4 Qd3 Bf3 Qc2 Re4 Bg4 Rf4 Re6 Qe1 Bf5 Bg4 Be4 f8B+ Kc7 d6+ Kb6 d7 Nd5 Bd6 Nc7 d5 Bf3 Rc4 h1Q+ Bh3 Qg1 Bg4 Qg2 Bf8 Be4 d6 Bd5 Bf3 Bh2 Qd1 Rb8 d8B Qgg6 d7 Ra8 Bde7 Rd8 Kh3 h4 Bh5 Qh6 Kg4 h3 Kh4 Qhg6 Qe1 Bb2 Qc1 Bg7 Qb2 Bh6 Qa2 Re8 d8N Rd6 Ne6 Red8 Ng7 Re6 Re4 Rdd6 Nc4+ Kc5 Re5 Kd4 Nb6 Rd7 Na8 Kc4 Ree3 Kd4 Rec3 Rdd6 Nd3 Ke3 Rc4 Kd2 Bc5 Rd7 Nb4 Kc1 Bcd6 Be4 Be5 Rd1 B5d6 Bd5 Qb2+ Kd2 Qd4+ Kc1 Qd2+
6N1/2N2KNN/nBBpr2R/1pR1qpN1/3nn1k1/Rq2b1r1/3B3N/1Q1b3r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 f5 e4 b5 h4 b3 c4 d6 a4 d3 c5 b2 a5 g6 c6 d2 a6 Qe8 Kg5 Bb7 c7 Qc8 a7 Nh6 Ra3 Ng4 h6 Na6 h7 Nf2 h5 Qd7 c8N Qg7 h6 Nc7 Bg2 Bd5 Nf3 Qg8 Ne7 Bg7 Nc3 b1R Nh2 Rd8 a8N Qe8 Ng8 Na6 Nc7+ Kf7 e6+ Kf8 e5 Rb3 e7+ Kf7 Rg1 Bf3 Ne4 Rd3 Qe1 d1Q Bd2 Qb3 Qb1 Bd1 Re1 Rf3 Re3 Rc8 Rc3 Rh3 Rc5 Rg3+ Kh4 Bf8 Bf3 g5+ Kh5 g4 Bh1 Qd7 e8N Qde6 Ng7 Re8 Bg2 Qed5 Bf3 Re6 Bh1 Be7 Ng5+ Kf8 Bf3 Ne4 Bg2 Bf6 Kg6 Qd4 Nce8 Bd8+ Nef6 Bb6 Bf3 Re7 e6 Qe5 Rc7 Be3 Rc5 Rg1 Bg2 g3 Bf3 Nf2 Ba8 g2 Bc6 Re8 Ne7 Rg8 h8B Rf1 h7 g1N Ned5 Nf3 Nc7 Ke7 Bd5 Rgf8 Bc6 Rh1 Ng8+ Kd8 Nh6 Nd4 Ng8 Ne4 e7+ Kc8 Ng7e6 Rf7 Nf8 Rf6+ Kg7 Re6+ Kf7 Rd8 Bg7 Re8 h8R Rd8 e8N Rd7+ Ne7+ Kd8 Nd5 Ra7 Nfh7 Ra8 Bh6 Rc8 Ng8 Rc7+ Kf8 Rg7 Ndc7 Rgg6 Nh3 Rgg1 Ng7 Rg3 Ba5 Bg1 Bhd2 Be3 Bb7 Kd7 N3g5 Kd8 Bb6 Kd7 Nh6 Kd8 Kg8 Ke7 Bc6 Bc2 Nf8 Kf6 Nh3 Qed5 Rh7 Ke5 Kf7 Bd1 Ng5 Kf4 Ng8 Qe5 Rh5 Qb2 Nfh7 Qb3 Nf1 Kg4 Rh2 Bf3 Rh6 Bd1 Nh2+
5n2/3R1n2/NR2QBp1/5N2/k1pKb3/Nr2r1rb/pr1NR2b/2BqNN1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 c5 d4 f5 b4 a5 e4 g6 d6 f3 Ke3 c4 e5 f2 h5 g3 b6 Kc6 d7 Kb5 h6 g2 d5 f4+ Kd4 a4 h7 f3 e6 a3 d6 a2 e7 Ra4 e8N Ra6 b7 Ra3 Nd2 Bh6 Ng7 Rb3 Ne2 g1R Ng3 Nf6 Rb1 Re3 Qe2 Rc3 N7f5 Bf8 Bg2 f1B Rh2 f2 Bh1 Nd5 Qe6 Ka4 b5 Ne7 b6 Qe8 d8R Qb5 d7 Bg2 Ngf1 Qb3 Rb2 Rg8 h8N Qd1 Nf7 Be4 N7d6 Re3 Nb5 Rgg3 Na3 Rh8 Rb5 Ng8 Rb1 Bd6 Rb2 Na6 b8N Rhh3 b7 Nc5 Na6 Nh6 b8N Nf7 Nc6 Rb3 Ne5 Rge3 Rb1 Rhg3 Nf3 Rb2 Rf8 Reb3 d8B Nd7 Re8 Nf8 Ne1 Rge3 Rg2 Bh2 Bf6 Rg3 Re7 Rge3 N1g3 f1R Rd7 Rff3 Nf1 Rg3 Re2 Bcb7 Nd6 Bg2 Nf5 Bh3 Qe4 Bc6 Qe6 Be4 Bh4 Rb6 Rb7 Rc2 Rd7 Rb4 Rb3 Rb2 Bf6 Rb7 Rb6 Rb8 Rc6 R8b3 Rb6
1nb1nN1R/5bNn/Npr2b2/q2Nprk1/p1N3Bn/K1B5/QB4N1/2RR4 b - - 0 1 illegal: No proof kernel
3rB3/Bp3k2/NRp1r3/2Q1brbR/2B2QBN/b2b1B2/5r1B/1b2K2B b - - 0 1 legal: proof: f4 a5 d4 e5 fxe5 c6 b4 axb4 d5 Qa5 d6 Qc7 dxc7 d5 c4 dxc4 g4 g5 Bh3 f5 Bg2 f4 Bf1 Nh6 h3 Nf5 gxf5 Nd7 h4 g4 Bh3 Nf6 Bg2 Ne4 Bf1 Ng5 hxg5 Bg7 Qb3 Bh6 Qd1 Bf8 e4 h5 a4 f3 a5 h4 e6 b3 e5 c3 g6 g3 f6 h3 f7+ Ke7 a6 g2 g7 b2 g8B c2 a7 h2 Qd2 Rb8 a8Q Rh3 Bc4 Bh6 f8B+ Ke8 e7 Be3 Ra6 Bf4 Nc3 b1B Na2 Bg4 c8B Bd7 Qa7 Rg3 Bgd5 Rg6 Rb6 Bf5 Nb4 Bh3 Na6 Bg5 Qf4 Bf5 Be3 Bd3 Bg4 c1B Bg7 Re6 Bd4 Kd7 e8B+ Ke7 Beh5 Rd8 Bf2 Ba3 Bg3 Rf6 e6 Rf5 Bd4 Kf8 Bc5+ Kg7 e7 f2+ Kd2 f1R e8B Rf2+ Ke1 Kf6 Nf3 g1B Be3 Ra2 Bc5 Bd4 Nh4 Rf2 Bgf3 Be5 Bhg4 Bb8 Rf1 h1R Bh2 Rg1 Bh1 Rgg2 Bdf3 Be5 Bd4 Rc2 Rg1 Rgf2 Rg3 Ke7 Rh3 Rc3 Ng2 Rb3 Rh5 Rb5 Be3 Rbd5 Nh4 R5d6 Rb2 Re6 Qc5+ Kf6 Rb6 Rc2 Bd7 Kf7 Qb4 Bh8 Rb5 Be4 Ba7 Be5 Rb6 Bd3 Qc5 Rf2 Be8+
k2qnbbB/n4N2/1NR2r1n/N3N2B/n2bN3/6rQ/bR2K3/2NNb2Q b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 f4 c5 g4 Kc7 f6 Kb7 d6 e5 d5 h5 g5 c4 f5 c3 f7 e4 g6 e3 f6 e2 b6 h3 g7 h4 d7 c2 d6 b3 Ra2 h2 Bb2 c1B Nc3 Nh6 g8N Bg7 f8N h3 f7 Be5 Ng6 Nc6 f8N Na7 Nf6 Rh7 Nfe4 Bd4 Ne5 Rg7 Bg2 Bf4 Bf3 Rg3 Bh5 Bc1 Ba1 Ba3 Rb2 Kb8 Kd2 e1B+ Ke2 Ba6+ Qd3 Bc4 b7 Bg8 Nd1 Bab4 Ne6 Ba3 Nf4 Bab4 Nd5 Ba3 Rb1 b2 Nb6 Ba2 Rc1 b1N Rc6 Bac5 Ngf3 Bcb4 Nfd2 Ba3 Rf1 h1B Rf2 h2 Nb3 Bg2 Bc3 h1N Nc1 Bh3 Rh2 Nf2 Qf3 Bg8 Qh1 Nfg4 Rg2 Nf6 Rf2 Qf8 d8N Ne8 d7 Bhe6 Ndf7 Ba2 d8N Bd6 Nec4 Qe7 Na5 Qc7 Ba1 Bf8 Ne5 Qc8 Ndf7 Nc3+ Kf1 Qd8 Rb2 Na4 Ke2 Nb5 Qh4 Ka7 Qh3 Rc8 Qh1 Rc7 Qh3 Rd7 Qh1 Rd6 Qh3 Rf6 b8Q+ Ka6 Qbc8+ Ka7 Qce6 Kb8 Qh1 Na7 Qeh3 Bdc5 Rb4 Re6 Ng6 Rd6 Bg7 Rf6 Bh8 Bcf2 Nge5 Bd4 Nc8+ Ka8 Rb7 Rg7 Rb2 Rg3 Nb6+
KQR3b1/b4b2/2Qq1q1Q/2n2N2/1Bn5/Q3Qq1R/1k1N1nbb/1b1B1Q1Q b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 h3 g5 Kd2 h5 Ke1 a5 Bg2 Rh6 Bf1 Rf6 h4 Rf5 gxf5 g4 Bd2 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Bg7 Qd2 Bh6 Qd1 Bf8 Kf2 Ke7 c4 Kd6 b4 Ke5 e4 d5 b6 h4 g6 d3 b7 Kd4 c5 a4 f6 a3 g7 h3 c6 h2 c7 a2 e5 d2 b5 Bf5 c8Q Bd6 f7 Nh6 g8Q Nd7 b8Q Nc5 f8Q Nf7 e6 Ne5 b6 Nc4 Qa4 d1Q Nd2 Kc3 b7 d4 e7 Bb1 e8Q d3 Qgf7 Be5 Qg6 Qd6 Be2 Qb3 Qa3 g3+ Ke1 g2 Kf2 Kc2 Qba8 Kc3 b8Q Kc2 Ne4 d2 Qgh6 d1B Ng3 Kc3 Qff6 Bdc2 Bd1 Bg6 Qcc6 Bf7 Nf5 Bg8 Ke1 f2+ Ke2 f1B+ Kf3 Bd4 Qe3+ Bfd3 Kg4 f3 Qab7 f2 Nf3 g1B Nd2 f1B Kf3 Na6 Qff7 Ba7 Qff8 Nc5 Qff7 Qf8 Q7a8 Bg2+ Kf4 Na5 Ke5 Qd8 Qab7 Qb6 Kd6 Nc4+ Ke7 Qa6 Kd8 Qb6+ Kc8 Qa6 Qcf3 Qd6 Qfc7 Bf7 Qcc6 Bg8 Qf1 Bf7 Qee1 Bde4 Qbb6 Bed5 Qe4 Bg8 Qee1 Bdf7 Qeh4 Nd3 Kb7 Nc5+ Ka8 Bf3 Be2 Bg2 Qh3+ Kc2 Bb2 Qf3 Bc3 Nb2 Bb4 Nc4 Qa4+ Kb2 Bd1 Bd3 Rc1 a1Q Qaa6 Bb1 Qab7 Qa6 Qa5 Qf6 Qe7 Qb6 Qee3 Qc7 Qa4 Qcd6 Q3h4 Nb7 Qce8 Nca5 Rc8 Nc4 Qec6 Nc5 Qfd3 Bf2 Qf1 Bg3 Rg1 h1N Qa6 Nf2 Qh1 Bh3 Rg2 Be5 Rh2 Bg2 Rh3 Bh2 Qaa3+
3BqqkN/bbr1N2r/RrN3q1/8/2b3Nb/1BN1N1Qb/2N3Qq/1K1R4 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Bd2 g5 Be3 f4 Bc1 Ne7 h3 Nf5 gxf5 Nc6 h4 g4 Qd3 Ne5 Qd2 Nf7 Qd1 Ng5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kd2 Kf7 b4 a5 e4 h5 c4 d5 Kc2 h4 b6 h3 g6+ Kg7 b5 a4 b7 f2 b8Q g3 f6+ Kg8 b6 g2 g7 a3 e5 f3 b7 h2 e6 a2 e7 Kf7 g8N Ra6 e8N Bc5 Qg3 Rh7 b8N Rb6 Ne2 g1Q Nbc3 Bb7 Ng7 Qf8 Bg5 d3+ Kc1 d4 Qd2 Be7 c5 Bd8 Qb2 d2+ Kc2 d1R c6 Rd3 c7 Qe8 Bh3 f1Q c8N f2 Nce7 Re3 Rd1 a1B Nbc6 d3+ Kb1 d2 Ned4 Re4 Nc2 Rc4 Ngf5 Qgg2 Rc1 d1B Nfe3 Bg4 Nh6+ Kf8 Rg1 h1Q f7 Qhh2 Rd1 Qe4 Bg2 Qg6 Bd5 Bh3 Nhg4 Kg7 f8N Kh8 Nd4 Rc7 Bb3 Kg7 Ndc6 Kh8 N7d5 Kg8 Qa2 Bf6 Qa8 Bd4 Bd8 Bb2 Qa2 Ba3 Qb2 Be7 Qa2 Bh4 Qb2 Qf6 Ng6 Qfg2 Qa2 f1B Nh8 Bc4 Rh1 Qff8 Nde7+ Kg7 Qb2 Qe4 Rhf1 Q4g6 Rf6 Bc5 Qc1 Bd4 Qd2 Bc5 Qdg2 Bd4 N7f5+ Kg8 Rd6 Bc5 Re6 Bd4 Nfe7+ Kg7 Re5 Rb5 Na2 Ba7 Nc3 Rb4 Ra5 Rb6 N7f5+ Kg8 Ra4 Rc8 Ra6 Rcc7 Nfe7+
2Qq1rRR/1R2R1pr/K1N2Q2/3ppB2/p2RR2q/2rnB3/2bR1N1b/1k6 b - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 b5 e4 f5 exf5 c5 axb5 cxd4 Bf4 a4 Be3 Nc6 Bc1 Na5 bxa5 Bb7 Ke2 Ba6 Ke1 Bc8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 f4 e5 h5 g3 a6 g2 a7 d6 h6 d3 f6 d2 h7 Qb6 f5 Qe3 f7 Qf4 f6 Bh3 b6 d5+ Kb5 Bf5 c4 Rc8 a8R Re8 c5 Re6 b7 Bd6 f8R Ke3 b8R Bh3 c6 Bb4 c7 Bf5 c8Q Ke4 f7 Bd6 Ra2 Bb4 Nc3+ Ke3 Rh4 Rc6 Nh3 g1Q Ne2 Kd3 Rb7 Nh6 Rg8 Rc3 f8R Ng4 Ka6 Bc5 Raa7 Nf2 Qe1 d1R Be3 Qfg5 Re4 Qh1 Bg2 Qe7 Nd4 Qd8 Nc6 Rb1 Re7 Rb8 Rab7 Bd4 Rab2 Ba7 R2b4 Kc2 Qf1 Nd3 Nf2 Qh4 Rbd4 Bg6 Bh3 Bb6 Nd1 Kb1 Rf2 Bf5 Rge8 Rf8 h8R Bh7 Rd2 Bg6 Rh6 Rh8 Rg8 Rh7 Qf7 Bh5 Qce6 Qc8 Rc4 Rh8 Bf5 Qd7 Qef6 Rf8 Bf2 Qd8 Q7e6 Bg4 Qc8 Bf3 Ne3 Bd1 Ng4 Bb3 Rh5 Be3 Rh7 Bf4 Rcd4 Bh2 Rh5 Rh6 Be3 Rh8 Nf2 Rh6 Rbc7 Bc2 Rcd7 Rg6 Rhh8 Rh6 Rc7 Rh7 Rb7+
1R3q1Q/1rr1Q1N1/3Rq1p1/2b1nQb1/BQ1B1Q1n/Nb2q3/4b1k1/K1Q1Q1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 c5 e4 f5 h4 a5 b4 f3 Kb2 g3 h5 f4 b6 g6 b7 c4 b5 f2 e5+ Kc7 h6 a4 h7 g2 e6 Kd6 e7 f3 e8Q Ne7 b6 Nd7 Ne2 g1B Na3 Ra7 b8Q+ Rc7 b7 Nf5 Rb1 c3+ Ka1 c2 Bb2 c1Q Ng3 Ne5 Nh5 Be6 Bb5 f1B Ng7 Qe3 Qc1 f2 Qc8 Rg8 b8Q Qf6 h8Q Nh4 Rh2 Bf7 Qf5 Be2 Qh6 f1Q Qhf4 Rh8 Bd7 Qe6 Qb4+ Rc5 Rf2 Rh7 Rg2 Be7 Qh8 Bg5 Qce1 Bg4 Rd2 Be2 Qc1 Qff2 Rd1 Qff3 Qe1 Rc7 Bc3 Qfe4 Rb8 Qc2 Rd2 Rb7 Bb2 Qc8 Bc6 Qf8 Rd3 Kc7 d6+ Kb6 d7 Bg8 Nb5 a3 d5 a2 d6 Bf7 Bc3 Kc5 d8Q Bg8 d7 Rc7 Kb2 a1B+ Kb1 Bb2 Rd6 Ba3 Qe7 Bf7 d8Q Bg8 Be4 Kc4 Ka1 Bc5 Qdd7 Rb7 Q5g4 Rc7 Bd5+ Kd3 Na3 Bf7 Qb4 Rb7 Qgg3 Bg8 Bc4+ Ke4 Bd4 Rc7 Qh2 Kf3 Qf4+ Kg2 Bb5 Rb7 Ba4 Rc7 Ne8 Rf7 Ng7 Rb7 Qee8 Re7 Qdb5 Rec7 Qe7 Nef3 Qd3 Qef6 Ra6 Ne5 Qdf5 Bb3 Rb6 Qe6 Rd6
1nN2NNB/bN3K2/N3R2b/RB1qN3/2q1b1nk/qb3Npn/6rr/2Q1Q3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 b4 Kf6 d4 Kg5 h4+ Kh5 e4 g5 e5 c5 b6 f5 d6 a5 b7 a4 e6 c4 b5 f3 Kg3 a3 d5 a2 d7 c3 d6 f2 b6 c2 e7 Ra5 e8N Qf6 d8Q Rh6 d7 Qg6 Nd6 Qh7 Bb5 f1B Nd2 Rg6 Qe8 Qh6 d8N Bg2 Bb2 c1B Ndf3 Nf6 Qee1 Be6 Ne5 Bb3 Nc8 Be4 Ngf3 Be3 Qc1 Qg7 Rh2 Qf7 Re2 Bh6 Bc3 Qd5 Bd4 Nbd7 b8N Ra7 Nbc6 Nb8 Bc3 Rh7 b7 Ba7 N6e7 Rgg7 Ng8 f4+ Kg2 g3 Kh3 g2 Bb2 Nbd7 b8N Ng4 Na6 Nb8 Nb7 Rg6 Rc2 Rgg7 Rc6 Rg6 Re6 Rgg7 Rb1 a1Q Bd4 Qa3 Ra1 Qf8 Ra5 Qa3 Nc4 Rg6 Bh8 Rgg7 Nce5 Rg6 Nd2 f3 Kg3 f2 Ndf3 Nf6 Kh3 g4+ Kg3 Rg5 Kf4 f1Q Ng6 Qd7 Nf8 Rg6+ Ke5 g1N Qed1 Qc4 Qf1 g3 Qfe1 Kg4 h5 Nh3 Qb4 Rgg7 Qbd2 Re7 Qde1 Bg5 h6 Qdc6 Qf2 Rd7 Qfe1 Rd2 Qb2 Rh2 Qbc1 Rc7 h7 Bh6 Nbd6 Qa8 Nb7 Rc5+ Kd6 Kh5 Ke7 Ng4 Kf7 Rd5 Bf6 Rdd2 h8N Rb2 Nhg6 Rbg2 Nd8 Qad5 Bh8 Nhf2 Nb7 Nh3 Nd2 Kg5 Ne5 Kh4 Ndf3+
2q4N/N1N1nr1n/1k2RB2/4b3/2pQN1Bq/3Q1pN1/1Kb2r2/NbR1rN1n b - - 0 1 illegal: No possible last move
1qQ2r2/1r2p3/2qQn1b1/B1N1K1nB/1Bp1R2B/3qbb2/B2B2kB/1n1N1R2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 a5 b4 h5 g4 c5 d4 h3 d6 h2 d7 e3 g5 a4 d5 h4 d6 h3 b6 a3 b5 a2 b7 e2 b6 Kh5 g6 Kh4 g7 e1Q Nd2 Nh6 g8B Qe8 d8B Nf5 d7 Ra4+ Ne4 Nc6 b8B Qe2 b7 Ra5 Bd2 Ncd4 Ke5 Ne6 f4 Nd6 f5 Bh6 f6 Ra7 f7 Qd3 f8Q Be3 B8a5 Qd8 Rb1 a1N Rb4 Nc2 Ne2 Na3 N2c3 Nb1 Be2 Qb6 Rf1 h1Q d8B h2 Bbc7 Kh3 b8B Rb7 Bh5 Kg2 Rc4 Bd7 Bb4 Be8 Qf5 Bg6 Bf7 Nf8 Qc8 Ne6 Ba7 Rf8 Bcb8 Qc6 Bda5 Qg1 Rd4 h1B B7b6 Nf4 Ba2 c4 Nc5 Qh2 Re4 Ne6+ Ref4 Qa4 Bc1 Nd2 N5e4 Bg1 Bf2 Nb1 Bba7 Qdc2 Bh4 Kh3 Kd5 Bf3 Bb8 Be3 Qd3 Nf7 Nd1 Qc3 Bd2 Ng5 Be5 Kg2 Qd4 Bg4 Nc5 Qd3 Re4 Bf3 Bd6 Qf4 Bb8 Qg4 Bh2 Qg3 Qd8 Qb8 Qc8 Nc7+ Ke5 Qc6 Qd5 Nce6+ Qd6
Bb4Q1/1p1Q2Qk/1rq1R1N1/2N2prb/1R1Q1Q1Q/n3nQr1/2qB1Kn1/7q b - - 0 1 illegal: No possible last move
QB1r1QNb/Q1Q3qr/B7/2Q1rR2/1r1p2bk/p6Q/n2qQ1KN/2nb1R2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 g4 Kf6 f4 h5 Kf2 e5 b4 d5 b6 a5 c5 a4 b5 e4 b7 e3+ Kg2 e2 c6 e1R c7 d3 b6 a3 Nd2 d4 Ngf3 Nh6 Qe2 Qd7 Nh2 Nc6 b8Q Qg7 b7 Ra4 Qa7 Nb4 b8Q Nf7 Qba8 Be6 c8Q Ne5 Qcc7 Na2 Qaf3 Rc4 Qh3 Rb4 Rb1 Be7 Rg1 Rd8 g5+ Kf7 f6 Kg6 f7 Bf6 f8Q Bg4 Ne4 d2 Rb3 d1B Rf3 Nd3 Qfc5 Be5 Bd2 Ndc1 Nf6 Kf5 Rf2 Kg6 Ng8 Bf6 Qef3 Re5 Ba6 Kf5 Qe2 Kg6 Qg3 Kf5 g6 h3+ Kh1 h4 Rgf1 Qd7 Qb3 Bh8 g7 Kg6 f5+ Kh5 f6 Qf7 Nf3 h2 Kg2 h1R Bf4 Qg6 f7 h3+ Kg3 h2 f8Q Qf7 Kg2 Qe7 Nh6 Qd7 g8Q Qh7 Qgd5 Qc2 Ng8 Qd2 Ng5 Kh4 Qda8 Re7 Bd6 Re5 Rf5 Rg1+ Kf2 h1Q Qbc3 Qb7 Nf3+ Kh3 Nh2+ Kh4 Qd3 Rh1 Qf3 Bg7 Kg2 Bh8 Qcf7 Qe7 Bb8 Qf6 Qfc7 Qg7 Qb3 Qc2 Rf6 Qd2 Nf3+ Kh5 Qe3 Rh4 Nh2 Rh3 Qb3 Kg5 Rf7 Rh7 R7f5+ Kh4 Qh3+
2B4q/2R4q/QQRN2pn/r1B1p2R/2KbRn2/1n2Rn2/RbN4R/2kr3b b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 f4 Kd6 b4 c5 d4 a5 h4 e5 h5 c4 f5 a4 h6 a3 f6 c3 f7 g6 h7 a2 b6 c2 b7 g3 b5 e3 Kd3 g2 b6 e2 Be3 e1Q Rh5 c1N+ Kc4 Ra5 Nd2 Be7 f8R Ra6 Qa4 Nd3 Rf7 Ra8 Ngf3 g1N Bh3 Na6 b8Q+ Nc7 b7 Qf2 Ne1 Qf4 Nc2 Bd7 Qa6+ Bc6 Bc8 Nh6 Bf2 Rg8 h8R Nc5 Re1 a1B Re4 Qe8 Qba7 N7e6 b8R Qh2 Rb6 Bd8 Rc7 Nf4 Rb3 Bb2 Q7b6 Qd7 Rbe3 Nf3 Bg1 Nb3 Bf2 Ke7 d6+ Kf6 d5 Qh7 d7 Qh1 Rh2 Kf5 d6 Bh4 Bg1 Bf2 d8R+ Kg5 Rdd7 Rd8 Ra7 Kg4 Rdc7+ Kg3 d7 Kg4 Rc3 Bd4 Ree3 Bb7 Ne4 Bc6 Nd6 Kg3 Qa1 Be4 Ra2 Ra5 Rh5 Ba8 Re4 Qh4 Rce3 Qf6 Rf8 Qfh8 Rf6 Bc6 Nf7 Bb7 Rfc6 Kg2 Nd6 Kg3 Qd1 Kg2 Qd2+ Kf1 Qdb4 Ba8 Qa6 Bb7 Qbb6 Ba8 Rd3 Bb7 Be3 Ke2 Rc3 Kd1 Bf2 Nc5 Rce3 Nb3 Bg1 Kc1 Rh2 Rf8 d8R Rf5 Rg8 Rg5 Bf2 Rg1 Rf8 Rf1 Rf5 Rd1 Rfh5 Ng8 Rc5 Ng1 Rc3 Be3 Rd4 Bh1 Re4 Nf3 R5c6 Nh6 Rd3 Bd2 Bg1 Bdc3 Bc5 Bd4 Rde3
Q5n1/2n1Q2p/2nQ1qQ1/1bb1Qn2/R2N3B/3qr1QK/2B1kpN1/rRQ2r2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 c5 e4 a5 g4 f5 Kg2 a4 g5 a3 e5+ Ke7 e6 Kd6 b6 a2 g6 c4 g7 c3 b7 c2 b5 f3+ Kh3 f2 e7 Ra3+ Bd3 f1N e8Q Qe7 b6 Ra8 Nd2 Qd7 Ndf3 Nc6 Bg5 c1R Ne2 Ne3 Ne1 f4+ Bf5 f3 Ng2 Rb1 Qc1 f2 Qh5 Qd8 Qg6+ Qf6 Re1 Bd7 Rd1 Be8 Bc2 Ra3 Rf1 Rd3 Rg1 Rd1 Rh1 Rf1 Rg1 Rb3 Rb1 a1Q b8Q+ Ke7 b7 Qa6 d6+ Ke6 d5+ Ke5 Rh1 Qd3 d7+ Bd6 Qa7 Bc5 d8Q Rc3 d6 Nd5+ Ng3 Kd4 b8Q Nc7 d7 Ra3 Qe7 Ra1 d8Q+ Kc4 Qaa8 Bd7+ Kh2 h3 Bh4 Kd4 Nf5+ Kc3 Qca3+ Kd2 Nd4 Be8 Qdd6 Bd7 Ne6 Ke2 Qc1 Be8 Rb4 Bd7 Ra4 Be8 Ne3 Bd7 Kg3 h2 Kh3 Be8 Rg1 h1N Qb5 Ng3 Ng2 Nf5+ Qgg3 Ngh6 g8Q Bd7 Qg6 Re8 Qbb2 Ng8 Qbd4 Rb8 Qc3 Rb4 Rh1 Re4 Qce5 Re3 Rg1 Na7 Qa3 Bb5 Nd4+ Kd2 Qb2 Nc6 Qc1+ Kc3 Kh2 Rfe1 Qb2+ Kd2 Kh3 Red1 Nb3+ Ke2 Qa3 Rd2 Rb1 Rd1 Qc1 Rf1 Nd4+
2RbK3/3nB2r/6Qp/R1B1q1BN/nBk4p/Q1p4q/1Nr1b1Bb/2Br2B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 a5 f4 c6 b4+ Kb6 g4 h6 d4 a4 g5 e3 g6 e2 g7 e1B d6 e6 d5 c5 f5 c4 d7 a3 f6 a2 f7 Bb7 d6 Be7 f8B Be4 Qd3 Bd5 Na3 Nf6 g8Q Nh7 Ne2 Bg3+ Nf4 Nf6 Qgg6 Qc8 d8B+ Qc7 Nc2 Be4 Qa3 Bd3 Bg2 Rg8 Ne1 Be2 Nd3 Nd5 Rh2 Be1 Nh5 Rh8 Rh1 Bg5 Bde7 Qc8 d7 Nc3 Kd6 e5 Ke6 e4 Kf7+ Bf6 Rf1 Bg3 d8B+ Bc7 Ke8 e3 Rf5 Nd7 Rc5 Na4 Rc6+ Ka7 b6+ Ka6 b7+ Kb5 b8B c3 Ba7 Bh2 Bac5 Kc4 b5 Rh7 b6 Ra6 b7 Rb6 b8B Rb2 Bh1 Rc2 Bg2 Bg5 Bba7 Bf6 Rb1 a1R Rb5 Bg5 Ra5 Rb1 Bd2 Rd1 Rc7 Ndb6 Bc1 Qh3 Rc8 Nd7 Bc7 Bf6 Bb4 Bg5 Bec5 Bd8 Bfe7 Bf1 Bf4 e2 Bfd2 e1Q Bg5 Be2 Bab6 Qeg3 Bg1+ Qc7 B6c5 Qe5 Nb2+
3q1R1N/Nnn1r3/6bB/R1NNn1B1/KR2p1q1/R1q5/1rN2b1n/2k2QR1 b - - 0 1 illegal: No possible last move
1NbrNR2/1p1br3/1R2NK2/2NR3b/QprB4/p7/N1nq1RB1/1kq4R b - - 0 1 illegal: No proof kernel
NBBRnR1n/R2q3R/1q3q2/4N3/2rQ2Nr/3K2Np/1p2pk2/NR2q1b1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Ke2 Kf7 a4 e5 d4 b5 a5 h5 f6 Kg6 f7 c5 a6 b3 d6 f3+ Kd3 h4 d5 b4 d7 h3 a7 f2 d6 b2 Na3 b1Q+ Nc2 b3 Ne2 b2 Ng3 Rh4 Bf4 Qb6 d8N Nh6 d7 Na6 Nc6 Nc7 d8R Rc8 a8N Ne8 Ra7 Bg7 f8R Nf7 Qd2 Qd1 Na1 Nh8 Be2 Qa4 Rb1 f1Q Rff7 Bf6 Rh7 Rc7 Qb4 Be7 Qd4 c4+ Ke3 c3 Ba6 e4 Bc8 c2 Kd2 Rb7 Bb8 e3+ Kc3 e2 Kd3 Ng7 Rf8 c1Q Rd8 Bc5 Rf8 Rc7 Rd8 Kf7 Ne5+ Ke7 g6 Qce1 g5 Qd7 Rf8 Ke6 Rd8 Ne8 g7 Qf4 g8R Qf8 g6 Qf6 g7 Rc6 Rf8 Rc7 Nh5 Kf5 g8N Rc6 Ng3+ Kg5 Ne4+ Kf4 Nh6 Rc7 Nhg4 Rc6 Nc4+ Kf3 Ng3 Rc7 Nge5+ Kg2 Qd6 Bg1 Ne3+ Kf2 Qd4 Rc4 N3g4+
3BK1N1/Qp4N1/1B2B2B/3Rr1N1/N2Br3/2b2rrp/pq5p/RnNb2k1 b - - 0 1 illegal: No possible last move, all moves rejected
RB1RRN2/Knb3q1/b1r2B2/1qB4Q/3Rq1N1/n2qqr2/1r1B3n/1R4kB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 a5 e4 f5 g4 c5 b6 h5 b5 f3 Ke3 h3 b7 h4 b6 f4+ Kd3 h2 Kc4 f2 Kb5 h3 g5 a4 g6 c4 g7 c3 Qh5 f3 Na3 c2 Qe8 Rh6 Qg6+ Nf6 g8R Nd7 b8R Nc5 Bg2 f1R b7 f2 Bd2 c1Q Nc2 a3 Rb1 a2 Qh5 a1N Ne2 Ra2 Ra8 Ng4 Ne3 Nc2 b8B+ Qc7 Rb4 Rb2 Nf4 Nb7 Ka6 Na3 Ng6 Qb1 Rc4 Qd3 Ka7 Be7 Bf3 Bd8 Nf8 Re6 Rg1 h1Q Rh8 Nh2 Ng4 Qg2 Ra4 Qg3 Bh1 Qge3 e5+ Ke7 Rg8 Rc6 e6 Qce5 Rb4 Qg7 Rc4 Bc7 d6+ Kd8 d7 Ke7 d8B+ Kd6 Rb4 Qb5 Bg5 Qbd3 e7 Qb5 Rg2 Kd5 Bf6+ Ke4 e8R+ Kf3 Rg1+ Ke2 Qc5 Qd3 d5 Qb5 d6 Qd3 Bd5 Qb5 Rbe4 Kf3 Rh1 Kg2 d7 Nd6 R8e5 Nf3 Rd4 h2 Ng6 Ba6 Rd8 Nb7 Be7 Re1 Rf1 h1Q Nf8 Re2 Rc1 f1Q Rb1 Kg1 Bd6 Nh2 Ree8 Qhf3 Be4 Rg2 Qh5 Rg3 Bc5 Qf5 Bh1 Rf3 Rc8 Qfe4 d8B Qb4 Bf6 Qb5 Rcd8 Qd1 Be1 Qdd3 Bd2+
2Bn2q1/4R3/rR1R2b1/N1nbKbq1/1BN2n2/3bB2k/2rRQbB1/2R2Br1 b - - 0 1 illegal: No possible last move, all moves rejected
5RRk/N1Q1n1R1/rr2b3/1NBr1b2/1R3qn1/1bKB3b/1RNNN2b/1q5b b - - 0 1 illegal: No possible last move, all moves rejected
1RnNRn1N/3R4/Q1NqbN2/Bq3b1q/3r1R1k/2br4/BR1Nn3/1b3n1K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 b4 Kf6 e4 Kg5 g4 f5 Kg2 c5 d4 a5 b6 h5 b5 c4 b7 h3+ Kh2 c3 b6 a4 d6 c2 d5 h4 e5 a3 d7 a2 e6 Bg7 e7 Ra4 e8N Rd4 d6 Ne7 Bb2 c1N Qd2 Ne2 Qa5 f3 Bc3 f2 Qa6 f4 Nf6 f3 Nd2 Re8 Rd1 a1Q Ba5 Qb1 Bg2 Qb5 Rb1 f1B Rb2 f2 Bd5 Qc7 d8N Nd7 b8N Nf8 b7 Be6 Ba2 Nc8 Nbc6 Re7 b8R Rd7 Ne5 Bg2 Ng6 Be4 Nh8 Bb1 Ngf3+ Kh6 Ne1 Kg5 Nd3 Qcc5 Rc1 f1N+ Kh1 h2 Nb4 Rd3 Rc4 Qcc6+ Nfd5 Bc3 Rf4 Qcc5 Nbc6 Rd4 Kg2 Bbf5 Nf6 h3+ Kf2 Kh4 g5+ Bg4 g6 h1Q g7 h2 g8R Qcd5 Rf3 Bgf5 Rg7 Bb1 Re7 Rd3 Re8 Qh5 Rf5 Qhd5 Rf3 h1B Rf5 Rh7 d7 Be4 Rf3 Rf7 Kg2 Qd6 Kh1 B4f5 Rf2 Rg7 Rf4+ Rg4 Ndf7 Bc4 d8R Bb3 Rd7 Bbe6 Rf3 Re4 Nfd8 Red4 Rf4+
BnR1KBB1/1rNrNnq1/4Rpbb/6r1/6k1/r4N1r/1NBNQ1b1/1B4q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 d5 Kh5 Kf5 e4+ Ke5 b4 a5 c4 h6 g4 a4 c5 f6 Kg6 d3 Kf7 a3 b6 f3 b5 f2 c6 d4 b7 a2 b6 h5 g6 h4 c7 h3 g7 h2 g5 d2 g6 Kf4 e5 d3 e6 Rh3 e7 Ra5 e8B Bf5 c8N Nd7 b8N Rh6 b7 Bg4 Nb6 Kg5 Na6 Bb4 b8N Bf5 Nc6 Nb8 Ba3 Qd7+ Ne7 Rh3 Bg2 f1R Qe2 d1Q Nf3+ Kg4 Na4 d2 Nb2 Nh6+ Kf8 Bc5 g8B Be3 g7 Nf7 Nc7 Bg6 Bh7 Rg5 g8B Qe1 Bd6 d1R Nbd2 Qg3 Rc1 a1R Rg1 h1B Bc5 Qd4 Ba4 Ra3 Ke8 Bf4 Rc2 Rfe1 Rf1 Qg1 Rc3 Rb1 Bc2 Red1 Re1 Be3 Ne4 Rd7 Ned2 Qh4 Bb4 Qh6 Rc6 Qg7 Re6 Ra7 Rc1 Rba1 Bb1 R1a3 Rc3 Rb7 Rc5 Bh5 Bhc2 Bg6 Ra5 Re5 Ra8 Bh6 Bd6 Rg5 Bc5 Na6 Rc8 Nb8 Nf5 Rd4 Bf8 Rd7 Ne7 Rb6 Nd4+ Kf4 Qd3 Kg4 Ba8 Bg2 N4f3 Rb7 Qe2
2r4q/n2NN2q/1R1K1Nb1/4Nrk1/2q1Br1R/N1RRr2n/Q5pB/bn4R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 h4 a5 d4 c5 b4 g5 e5+ Kf5 d6 a4 d7 c4 d5 f3 Ke3 f2 Kd4 a3 d6 c3 Kc5 c2 e6 g3 h5 a2 h6 g4 e7 g2 e8N g3 h7 Qe7 d8R Nf6 b6 Ra3 b7 Nd5 b5 Bg7 b6 Re3 Rh3 Nc3 Qe2 Kg5 Nf6 Nc6 b8R Bf5 b7 Bg6 Na3 Nb1 Qd2 Qe4 d7 Na7 Bd3 f1R Kd6 Rf4 Bb2 c1Q Be5 Rf8 h8R Qcc4 R8h4 Rh8 Rdc8 Rd8 Rc5 Rc8 d8N Bh8 Nc6 Rf5 Ne2 g1N Nf4 g2 Ne7 Bg7 Rf3 Nh3 Bc2 Bh8 Nd3 Bg7 Bh2 Bh8 Nfd5 Rf4 Ne5 f5 Nf6 Bg7 Ra8 Bh8 b8N Qb7 Neg8 Qh7 Be4 Qd3+ Bd5 Re1 Ned7 Nc6 Nb6 Nc3 Ra6 Na7 Nbc4 Qf1 Rb1 a1Q Qa2 Rfe4 Rab6 f4 Nh5 Bg7 Rd1 Nb1 Rfd3 f3 Re3 f2 Ne7 Re2 Reb3 R2e3 Nd7 Qd3 Rh1 f1R Rg1 Rf5 Rc7 Qc2 Rd3 Ref4 Be4 Bh8 Rc5 Qag7 Rcc6 Qf8 Rc7 Ba1 Nce5 Qfh8 Nhf6 Qb3 Rc2 Qc4 Rcc3
RqNKB3/1qB5/2NR3k/r2N1pB1/3nbN2/B2Qq2B/bqn4n/br3N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 d4 Kg6 e4 a4 b4 f3 b6 a3 d6 f2 b7 c4 b5 h3 g5 c3 d5 h4 d7 h2 Ke6 c2 b6 a2 d6 h3 e5 Rh7 Qd3 Kh5 g6 Nf6 g7 Ra6 g8N Ra8 Nd2 Ra7 Ne7 Bg7 Nd5 Kg5 Ba3 c1Q Ne2 Nc6 b8N Qb1 b7 Qb2 Nef4 Ng4 Bg2 Rh4 Rhd1 h1Q Nf1 h2 Bh3 Nd4+ Kf7 Ra6 e6 Kh6 e7 Ra5 e8B Qg2 Rd2 h1B Nc6 Nh2 b8B Bb7 Bc7 Qb8 Ke7 Qf3 d8N Qe3+ Nfe6 Be4 d7 Rg4 Nef4 Rg1 Na7 Ba6 Qc2 Bc4 Ndc6 Rh1 d8B Q8b7 Rc1 a1N Qd3 Ba2 Nc8 Nac2 Ra1 Be5 Kd7 Bg7 Bf6 Rg1 Ng3 f1Q Kd8 Qfb1 Nf1 Qb8 Rg2 Bh8 Rg7 Q2b7 Rd7 Q1b2 Rd6 Rh1 Nd2 Rc1 Nf1 Rb1 Bg6 Nb5 Qc4 Qb4 Be5 Ra6 Qd3 Bc4 Bc1 Ra7 Ra5 Ba2 Beb2 Bc3 Ba3 Ba1 Bcb2 Ra8 Bf6 Qb2 Be8 Nbd4 Ra4 Ra6 Ra5 Rb6 Ra6 Rb5 Ra8 Ra5 Bg5+
4R1R1/N1RQpRN1/KbrbBN1r/3q4/7b/3NN3/bq2qBRn/3r1n1k b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 Kg6 f4 Kh5 d4 Kg4 f5 Kg3 f6 h5 b6 c5 b7 a5 f7 e3 Kd3 h3 Kc4 h2 Kb5 h4 d6 a4 d5 e2 d7 e1B d6 h3 Nc3 a3 Nge2+ Kf2 g4 c4 g5 a2 g6 Nf6 g7 Ra6 g8R Nd5 Nf4 Bh6 f8R Nc6 b8N Ne3 Rf7 Ne5 Rhg1 h1R Nc6 h2 Bh3 Nf3 Be6 Nf1 Na7 Rc6 Ncd5 c3 Ne3 c2 R1g5 Qf8 d8R Qe8 Bd2 c1B d7 Ba3 Rc1 a1Q Qa4 Qf8 Re8 Qb2 d8N Bg7 Ka5 Bd4 b5 Bd6 b6 Rh6 b7 Bb6+ Ka6 Qfg7 Bc3 Qe5 Bd4 Rg1 Rg3 h1Q Qb5 Bd7 b8N N3h2 Rg2+ Kf3 Qa4 Bh4 Bc5 Qe2+ Nd3+ Qf6 Nf5 Qfb2 Bf2 Nd2 Qb5 Rd1 Rc2 Ndf1 Rc1 Rc8 Rc7 Bc6 Qa4 Bd5 Nd7 Bb3 Nf6 Ba2 Rb7 Rc6 Ne3 Rc7 Qd7 Rc6 R2g6 Qg2 Rc7 Qh1 Bc4 Qg2 Ne6 Qg5 Ng7 Qd5 Neg4 Kg2 Ne3+ Kh1 Rg2 Qe4 Be6 Q4f3 Rd8 Qd5 Rde8
NBq3Nb/1B1pbrB1/1n3B1N/2n2R2/8/1b3Q2/1NrnNb1b/knR2B1K b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 c4 Kf6 f4 a5 Kf2 e5 Kg2 g5 b4 g3 c5 d3 h5 a4 b6 e4 c6 d2 b7 a3 b5 e3 c7 a2 b6 g4 h6 e2 h7 e1B Ba3 Na6 b8B Bb7+ Qf3 d1N c8B Bd5 b7 Nc3 Bb2 Ne7 Ne2 Bb3 Na3 Bf2 Rh5 Nd5 Kh1 Be7 Rc1 a1B Nc4 Rf8 h8N Nb6 Nf7 Nc5 Nh6 Rf7 Rg5 Ra2 Rh5 Kg7 f6+ Kg6 Rd5 Nb1 f5+ Kg5 Bd4 Rc2 Nb2 Qf8 Bbe5 Qe8 b8B g2+ Kh2 g1B+ Kh1 g3 Bb7 Bh2 Bc3 Rh7 f7 Qc8 f8N Rg7 f6 Rf7 Ne6+ Kg6 Nc7 Kg5 Qe3+ Kg6 Ng4 Kf5 Na8 Ke6 Bcd4 Kf5 Qc3 Ke4 Nh6 Nca4 Qc7 Nc5 Bc3 Ke3 Bcd4+ Kd2 Qc6 Rg7 f7 Rh7 f8N Rf7 Na4 Kd3 Nh7 Kc4 Nf6 Kb4 Nac3 Ka3 Nfg8 Kb2 Nd1+ Ka2 Bed6 Bb2 B6e5 Ka1 Bf6 Bc3 Kg2 Bb2 Rf5 Bc3 Kf3 g2 Nb2 g1N+ Kg2 Nf3 Kh1 Nd2 Qf3 Rf8 Bh4 Rf7 Bg7 Bce5 Bf8 Bg7 Bf6 Bh8 B8g7
Bk2q3/1Nr5/1rB4B/8/B1rR1N2/p2N1q1r/nnRBnQ1N/K1bbn1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 b4 a5 Kb2 c5 e4 Kc7 g4 f3 e5 f4 e6 f2 g5 a4 e7 f3 e8B c4 g6 h3 g7 h4 Bd2 h2 Qe1 h3 Bc6 Rh7 Bg2 f1R Ra2 c3+ Ka1 a3 Rc2 Ra4 Qf2 Nf6 g8B Nbd7 d6+ Kb8 b6 Bh6 b7 Nc5 b5 Nh5 d5 Nd3 d7 Nb2 d6 Ng3 Bb3 Rc4 Ba4 Qe8 d8N Ne2 Ne6 Rc7 Nf4 Bg4 d7 Rc1 d8N Rd1 Be1 Rd6 Nd2 Bg5 Nf1 Rh6 Rd2 c2 Rd4 c1N Bb4 Na2 Bd2 Ka7 b8N Rf6 Ba8 Rb6 Nb7 Bh5 Qe1 f2 Nd7 Bf3 Ne5 Kb8 Ned3 Bh5 Ng3 f1N Qf2 Ne3 Bc6 Ng2 Nf1 Ne1 Nf3 Ra6 b6 Bg4 Rg1 h1Q Rg2 h2 Ng1 Bh5 Rg4 Qd5 Rg2 h1R Nh2 Bh6 Rg5 Qf3 Rc5 Rb4 Rc2 Rc4 Na5 Bg4 b7 Rb6 Nf1 Rh3 Nh2 Ka7 b8B+ Ka6 Bc3 Re7 Nb3 Qg3 Nh5 Nf4 Bd2 Bd1 Bc3 Ne2 Na5 Bc1 Bd2 Qf3 Bbf4 Ka7 Nb7 Rc7 Bh6 Kb8 Nhf4
3B2B1/1N1N1Q2/2RnNqrb/1pNBBb2/1r1bb3/K3B3/1R2q3/1rNr1kn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 Kd6 d4 h5 Kd2 e5 Kc2 b5 Kb2 c5 g4 e4 g5 e3 f6 h3 a5 h4 a6 c4 a7 b3 g6 h2 f5 e2 g7 e1R f7 h3 f6 c3+ Ka3 c2 Bc4 b2 Nd2 b1R Qh5 Rd1 Nb3 Nc6 Ne2 Ne5 Be3 Nf3 Nec1 Ng1 Nc5 Nh6 g8B Bf5 Ra2 Bg7 f8N Nf7 Nfd7 Rh6 Rb2 Rg6 Bb3 Rc8 a8N Qe7 Nc7 Qf8 N1d3 c1B N7e6 Bh6 Qf3 Bd2 Nc1 Bc3 Na4 Rc4 Nac5 Rb4 Qf2 Ng5 f7 Ne4 Ba2 Qe8 f8B+ Qe7 Bg7 Qf6 Nb8 Nf3 Re1 h1Q Nbd7 h2 Ree2 Qg2 Rec2 h1B Bb3 Qh4 Bc4 Ng1 Be5+ Ke7 Bb3 Qf6 Qf3 Qe2 d6+ Ke8 d5 Bd4 Nb7 Bg2 Rc6 Bh1 Nec5 Bg2 Bh7 Kf7 Bg8+ Kg7 Nb6 Bh1 d7 Nd6 d8B Bg2 Qf1 Bge4 Qf4 Rg3 Qf2 Kg6 Nbd7 Kh5 Qf1 Kg4 Bc4 Nf7 d6 Kh4 Qf3 Kh3 Qh5+ Kg2 Bd5 Nh8 Qf7 Rg6 Nf8 Kf1 d7 Nh3 Ba5 Ng1 d8N Qh2 Nfd7 Qe2 Qe7 Nf7 Nde6 Nd6 Bd8 Ke1 Qe8 Kf1 Qf7
1QNB3b/q2qN2n/n1bRrb2/B1B1RN2/BN6/1K1pn1n1/2N1p3/B2kr3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 a5 Kc2 d5 g4 e5 b4 h5 b6 d3+ Kb3 h3 b7 d2 c5 e4 b5 h2 g5+ Ke7 g6 Kf6 g7 e3 c6 d4 b6 h4 c7 h3 Na3 Ra6 Ne2 Nc6 b8B Qd7 b7 Nb4 Ng3 Re6 Bb2 Be7 Bb5 e2 Nc2 Na6 Qb1 d1N Ba4 Ne3 Rd1 h1Q Ra2 h2 Ba1 Rh4 Ba7 Qg1 b8N h1N Bc5 Rh2 Nc6 Bb7 N6b4 Bc6 c8N Rf2 Bb6 Rf1 Bd8 Re1 Rb2 Nh6 Ra2 Nf7 Qb2 Ng5 g8N+ Kg7 f6+ Kg6 f7 Bf6 f8B Nh7 f5+ Kg5 Bc5 Kf4 Ra3 Kf3 Qb1 Kf2 Nge7 Bh8 f6 d3 f7 Bf6 Ngf5 Ng3 f8B Bh8 Bfg7 Kf1 Bgc3 Bf6 Bb5 Kf2 Rc1 a4+ Kb2 Kf1 Ra2 a3+ Kb3 Qf2 Ba4 Qg1 Be5 Bh8 Bec7 Bf6 Rb2 a2 Ba5 Kf2 Na3 Kf1 Rc4 Qf2 Rd4 Bh8 Rc2 Bf6 Rd6 Bh8 Bg7 a1B Rc4 Bf6 Re4 Rc1 Re5 Ke1 Nac2+ Kd2 Qa1 Re1 Qd4 Kd1 Qc4 Qh2 Qb5 Qh5 Qb7 Qhe8 Qa8 Qa7 Qb8 Qed7 Red5 Bg5 Ba1 Bgf6 Re5
1NN1Br2/k4BK1/1bB1b3/1RnNNb2/4B1pQ/2B1R1Nq/2rp3q/2b1n1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 f5 Kg3 g5 c4 d5 b4 Kd7 h4 Kc7 e4 Kb6 c5+ Kb7 b6 a5 e6 d3 c6+ Ka6 b7 d4 b5+ Kb6 h5 a4 h6 d2 e5 a3 e7 d3 e8B a2 e6 Be7 h7 Qd5 c7 Qd8 Bc6 Qd5 Rh5 Nh6 Qe1 d1B Bg2 d2 Bb2 Bc2 Nc3 Bc5 e7 Be6 e8B Nf7 c8B Na6 b8N Ka7 Nge2 Ne5 Be4 Nf3 Nd7 Bb6 Ne5 Rf8 h8N Qd6 Ng6 Nc5 Nd5 Bb1 Qh1 Ne1 Bc3 Qc7 Ba6 Rc8 Nge7 Bc2 Rd1 a1B Qh4 Bb2 Ra1 Qd6 Ra3 Bc1 Bf7 Rc7 Bce8 Rc6 Rb3 Rc8 Bb7 Bb1 Bbc6 f4+ Kh2 f3 Kg3 f2 Ra3+ Ba5 Rb3 f1Q b6+ Kb8 b7 Ka7 b8N Bb6 Rb5 Bd3 Rh6 Qh1 Rf6 Qc7 Rf3 Qh3+ Kf2 g3+ Ke3 g2 Kd4 g1R Re3 g4 Ng3 Bc2 Ned7 Qd8 Ke5 Qc7+ Kf6 Qf4+ Kg7 Bb1 Bg2 Bbf5 Ne5 Qf2 Bh1 Qfh2 Be4 Na6 Ba8 Rc4 Bac6 Nc5 Bd4 Rc2 Ba1 Rh1 Bc3 Rg1 Nc8+
q4RKQ/2pkR3/nq6/r3b2b/nB3r2/bNr1B3/1N1rB1pB/R1R3RB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 d4 g5 b4 f5 e4 f3 Ke3 f2 h4 g3 d6 g4 Kf4 a4 Ke5 f4 d5 f3 h5 a3 h6 a2 d7+ Ke7 d6+ Kf7 b6 g2 b5 g3 h7 Qh4 d8B Ke8 d7+ Kf7 b7 Nf6 b6 Ra4 Ne2 g1R Be3 Ra8 Be7 Bh6 d8R Qh3 Nf4 Be6 Be2 f1Q Re8 f2 Qd8 Rg8 h8B Qh2 Nd3 Rg2 Rg1 Qh1 Nb2 Bg4 Nd2 Qb1 Bb4 f1R Nb3 Na6 b8R Bh5 b7 Rf4 Rc8 Rgg4 b8R Bf8 Rb7 Nd5 Re7+ Kg6 Ke6 Nc3 e5 Na4 Rc1 Rf3 Rb5 Rgf4 Rd5 Rgf2 Rdd1 Kg5 Rg1 Qg2 Kd7 Kf5 e6 Qh1 Be5 Ra7 Bb6 Rc3 Be3 Qa8 Rb8 Bg7 Qh8 Bf8 Bf1 Rfc2 Be2 Rd2+ Bed6 Qbe4 Rd8 Qd4 Rde8 Qb6 Rb8 Bg4 Ke8 Bf3 Kf7 Bg4 Rd7 Bh5+ Kg8 Be7 Be5 Bf8 e7 Ke6 e8B Be7 Rab1 a1B Bg6 Bf8 Be4 Bd6 Bh1 g2 Rf7 Be7 Rff8 Kd7 Rbe8 Bd6 Nd3 Bb2 Ra1 Ba3 Re6 Bf3 Nb2 Bh5 Bf6 Be5 Bh4 N6c5 Bg3 Ra5 Bh2 Na6 Re7+
r1qrB1Rb/pQ4n1/1B1N1n2/1bp1BR1B/4r2B/nRK1nq2/4N3/k3R1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kd6 d4 h5 Kd2 c5 e4 f5 b6 h3 b7 f3 e5+ Kd7 d6 Ke6 b5 Kd5 d7 f2 b6 h2 e6 f4 g5 f3 g6 h4 e7 h3 e8B Rh5 g7 Re5 Ne2 Kc4 d5 Na6 b8R Re4 d6 Nb4 b7 Nc2 Na3+ Kb3 Bb2 Nf6 g8R Bg7 Qb1 Bh8 Rhg1 h1Q Nb5 h2 Bg2 Qc7 d8B f1R d7 f2 Nd6 Na3 Bf3 Qc6 Bg4 Qf3 Bgh5 h1N Bb6 Ng3 d8B Bd7 Rc8 Qc7 b8R Bb5 Be7 Nf5 Be5+ Ka4 Nc1 Ng7 Bd8 Qb7 Rc7 Qc8 Rf7 Rfe1 Nd3 f1N+ Kc3 Ne3 Nc1 Rd1 Qb2 Nh7 Rf5 Rd5 Bh4 Nf6 Na2 Rd2 Rae1 Rd1 Nc1 Rd5 Nf7 Rd8 Nd6 Nac4 Qg2 Ka3 Ne2 Ka2 Nc1+ Ka1 Qh1 Na3 Qg2 Qd1 Qh1 Rd4 Qb7 Re4 Qa6 Bc4 Bc7 Qe2 Rb3 Qf3 Bb6 Bf1 Qb7 Bb5 Ne2+
b1q3N1/b2B1p1B/R3p3/RR1N1q2/3Rnp2/BB1n4/1Bnr3R/k1brQ1K1 b - - 0 1 illegal: No possible last move, all moves rejected
B2NR2K/2QrRB2/3Nq3/1r4Rp/2R1b2R/1B2R1q1/b1Q1r1p1/5nbk b - - 0 1 legal: proof: f4 d5 a4 b5 axb5 a5 c4 f5 cxd5 e6 g4 e5 gxf5 exf4 h4 g5 b4 g4 b6 Na6 b5 Nc5 Ba3 Ne4 Bb4 Ng5 hxg5 axb4 Kf2 Kd7 d4 Kd6 e4 h5 g6 c5 e5+ Kd7 e6+ Kd6 f6 c4 b7 f3 Ke3 f2 Kf4 b3 Kf5 g3 b8R c3 f7 b2 g7 c2 Kg6 c1R b6 Bd7 e7 Rh7 e8B Nf6 g8B Rc6 b7 Be6 Na3 b1B+ Qc2 Ra5 Nf3 Qc7 Rc8 Qd7 b8Q+ Rc7 Rh4 Qc6 Nc4+ Ke7 Nd6 Nd7 Ng5 Qb7 Ra3 Nf6 Bg2 f1Q Re3 Rd7 Rc4 Qf2 Qc7 Qc8 Bh1 Bh6 f8R Ng4 Ngf7 Nh2 Nd8 Nf1 Rf5 Rb5 Rg5 Ba2 Be4 g2 Bef7 Qg3 Bf3 Bf8 Be4 Rg7+ Kh6 Rg6+ Kh7 Kf6 Kh8 Be7 Nf5 Bb4 d6 Bc5 Ba8 Bd5 Re7 Bc6 d5 Bg1 Re3 Rg7 Re7 Bb7 Re3 Re7 d7 Bc6 d6 Be4 Nb7 Ke5 d8R Qe6 Rd7 Re8 Nd8 Re7 Rh3 Re8 Re7 Kf4 d7+ Re5 Nd6 Rb5 Re1 Kf3 Qc3+ Kf2 Re3 Bh2 Qb3 Kg1 Qc2 Kh1 Rh4 Rf8 Bg6 Rf2 B6f7 Rd2 N8b7 Re2 d8R Qeh3 Rde8 Bg1 Bg6 Rf7 Nd8 Rg7 Ree5 Rd7 R5e7 Qgh2 Bgd5 Qe6 Bf7 Qhh3 Ra4 Qh2 Bb3 Qhh3 Rc4 Qh2 Rhg4 Qg3 Rh4+
Q3nqB1/4R1nb/1B3N2/1n1p1pRp/R2p2B1/2k2B1K/1p3Np1/1BR2N2 b - - 0 1 legal: proof: g4 f5 f4 a5 h4 e5 a4 c5 b4 b5 d4 h5 g5 Bd6 Kd2 axb4 Ke1 b3 Ra2 b4 Ra3 Ra5 Ra1 Rb5 axb5 Be7 fxe5 cxd4 Rh2 Bf6 gxf6 g5 Rh3 g4 Rh1 Rh6 Rh2 Rg6 Rh1 Rg5 hxg5 Qc7 Nf3 Qa5 Ng1 Qd8 Kf2 Kf7 Kg2 Ke6 c4 g3 e4 d6 f7 b2 f8R b3 c5 Ba6 g6 Qc7 b6 Bd3 g7 Qb7 c6 Qe7 b7 Qf7 c7 Be2 c8B+ Qd7 Rf7 Bd3 Kh3 g2 Ra4 Ba6 Bd2 Nh6 g8B Be2 Ba5 Na6 b8R Nb4 Ba6 Bc4 Bd3 Qc7 Qf3 Na2 Nd2 b1N Bb6 b2 Nf1 Nd2 Bb1 Bb3 Be2 Nc4 Rg7+ Qf7 Rg5 Bd1 Rb7 Ng4 Qa3 Nf6 Bg4 Bb3 Rc7 Na5 Rc1 Nc3 Re1 Ke7 e6 Qf8 e5 Nb5 Re4 Nc4 Re2 Ke8 e7 Kd7 e8N Kc6 e6 Kd5 e7+ Qf7 Re6 Qf8 Ng7 Ba2 e8B Bb3 Bd7 Ne8 Qa2 Ne5 Re7+ Nf7 Kg3 Bc4 Nh3 Bb3 Nf2 Bc4 Re6 Nd8 Re7+ Ne6 Kh3 Bb3 Ra3 Kc4 Bc6 Kc3 Ra4 Nf6 Ne8 Ng7 Bb7 Be6 Bbf3 d5 Rg1 Bf7 Rh1 Bg6 Rg1 Bh7 Qa1 Ne4 Nf6 Ned6 Rc4+ Kb3 Qa8 Nde8 Ra4 Kc3 Nh2 Ne6 Re1 N6g7 Nf1 Nbd6 Rd1 Nb5 Rc1+
q1R2nNn/1Nb3nR/3n2N1/8/Bn1n1BkB/2B2nQR/2r1br2/1N4NK b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 g4 Kf6 f4 h5 Kf2 c5 Kg2 e5 d6 e4 d7 c4 d5 e3 b6 c3 d6 c2 b7 e2 Nf3 e1N+ Kh2 b3 Ra4 h3 Re4 b2 Ba6 h4 Na3 b1N Re2 Nd2 Bb5 Nh6 Re5 Nc4 Ng1 Nf7 Nb1 Ra2 Bd2 c1N Qc2 Ne2 Bc3 Nd4 Re7 Rb2 Qd2 Rc2 Ba4 Qa5 d8B Nd7 b8R Ba6 Rc8 Rg8 Qg2 Nh8 Rh7+ Be7 Qe2 Nf8 d7 Nd6 Bc7 Qd5 d8N Qa8 Nb7 Bd8 Bb8 Bc7 Qf2 Rg7 g5+ Kf7 f6 Ke6 f7 Kf5 g6 Kg4 f5 Be2 Rh5 Rh7 g7 Rh6 g8N Rg6 f6 Rg5 Nf3 Rf5 Rh7 Rf4 Rf1 Rf5 Ng1 Nef3+ Kh1 h2 Rd1 Rf4 Rd3 Rf5 Kg2 h1N Re3 Ng3 Rd3 Nge4 Kh1 h3 Qh2 Ne8 Re3 N4d6 Rd3 Nfg6 f8B Ng7 Be7 Nf8 f7 Rf4 Bh4 Rf6 Qe5 h2 Re3 Nd2 Rh3 N2f3 Kg2 h1N Qh2 Nd7 f8N Nf2 Ng6 Nd3 Kh1 Nf8 Ba7 Nb4 Bc5 Ndc6 Be3 Ncd4 Bc1 Ne5 Bh6 Rf2 Bf4 Nef3 Qg3+
RK4nB/2QNr1n1/1B1Q3q/B5R1/1bB1rB2/b7/R1q5/krrn1qBN b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kd6 Kd2 f5 Ke3 h5 Kf4 c5 e4 a5 e5+ Ke7 g5 a4 g6 a3 b6 h4 b7 c4 e6 Kd6 g7 h3 e7 c3 e8Q a2 b5 h2 b6 c2 Bc4 Rh7 Nc3 Qf6 Bb2 c1R Qc8 Nh6 g8R Qg6 Na4 Rg7 Nh3 g1B Nf2 g2 Nc5 Na6 b8B+ Nc7 b7 Re7 Nd7 Ra4 Ba7 Ne8 Rb1 Qh5 Rg5 a1Q Qd3 Ng8 b8B+ Nc7 Bc3 Qh6 Rb2 Qb1 Bb6 Qc2 B8a7 Rh7 Qd2 Ne8 Qc7+ Ke7 Ke5 f4 Qd3 f3 Qd1 Ng7 d6+ Ke8 d5 Kf7 Bd2 Be7 Bf4 Rb4 Nd3 Bc5 Nf2 g1R Qd2 Rgd1 Rhg1 Ra4 Nh1 f2 R1g3 f1Q Ra3 Bb4 Ba5 Rb1 Bg1 Rdc1 Bab6 Ra5 Qd3 Rb5 Ra8 Ba3 Qg3 Rb4 Ba2 Qcg2 Qd3 Qff3 Qc6 Qfh5 Nf8 Qd2 d7 Qf3 Ng3 Ne6 d6 h1N Qcc3 Nf2 Nh1 Qfd1 Bd4 Rg7 d8B Qf1 d7 Nd1 Ba5 Qc2 d8B Rh7 B4b6 Re4+ Kd5 Beb4 Kc6 Rg7 Kb7 Rh7 Bf6 Rg7 Bfd4 Ke7 Bd2 Kd6+ Nd7 Rf7 Bd5 Re7 Bh8 Ng7 Kb8 Qhh3 Nc5 Qh6 Bf7+ Kc6 Qd6+ Kb5 Nd7+ Ka4 Qcc7 Qcc4 Ra2 Kb3 Bf4 Kc3 Bh5 Kb3 Be2 Qc3 Rc2 Qb2 Bb5 Ka2 Bc4+ Ka1 Re2 Qc3 Rb2 Qc2 Ra2+
nnN2RR1/3q3q/R2qn1R1/2r1q3/b1N1B1K1/QbB2Q2/1Nkn2R1/6Rb b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Qd2 a5 Qd3 f4 Qd1 Be7 h4 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 g4 Bh3 Kf8 Bf1 Bg5 hxg5 Ke8 Kf2 Ke7 c4 Kd6 b4 Ke5 e4 h5 c5 d5 c6 g3+ Ke1 g2 Kf2 d3 f6 Kd4 c7 a4 f7 d2 f8Q h4 g6 a3 b6 h3 b5 a2 e5 h2 e6 Nf6 e7 Bd7 c8N Ne8 b7 Nc7 e8R Na8 g7 Rh5 b6 Ba4 g8R Qd7 Qc2 d1B Nh3 g1N Rg2 Ne2 Qb2+ Kd3 Qba3+ Bdb3 Rhg1 h1B Bd2 d4 Bc3 Kc2 Nd2 d3 Nc4 d2 Re6 d1Q Reg6 Nd4 Qf6 Rc5 Qf7 Nbc6 b8R Ne6 b7 Q1d6 Qf6 Nac7 Ra8 Nb8 Ra6 Na8 Rd1 Nc6 b8R a1Q Rd5 Qh7 Rdg5 Qdd7 Qf7 Qad1 Rg8 Q1d6 R5g6 Qe5 Ne7 Qed6 Rbf8 Nb8 Nc8 Qe5 Ng5 Qed6 Ne4 Qe5 Ned2 Qed6 Ke1 f2+ Ke2 Qe5+ Kf3 Qed6 Be2 f1Q+ Kg4 f3 Qf6 f2 Bf3 Qa1 Nb2 f1N Ndc4+ Nd2 Bc6 Qe1 Qf3 Qee5 Be4+
2qNB2K/nQ5N/3pR1R1/2Bb1kq1/Rr2n1q1/2R3B1/4rN2/r1R1B1nb b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kf2 h5 Kf3 e5 Ke4 Ke7 c4 a5 b4 h4 g7 f3 g6 Kf6 c5 d3 b6 f2 b7 h3 c6 h2 b5 a4 c7 d2 b6 a3 Qf3 d1R Bd2 a2 Bb5 f1Q Nh3 Rh7 Nc3 Rc1 Nd1 Ra5 Ng5 Rh3 Nf2 Qg2 Nh7+ Ke7 f6+ Ke6 f7 Rc2 f8B Qdg5 Rhc1 Nc6 b8N h1B b7 Na7 Nc6 Q2g3 b8B Bb7 c8R Q3g4+ Kd3 e4+ Kd4 Nf6 g8R Ba8 g7 e3+ Bf4 e2 Nd8+ Kf5 Bd6 e1Q Re8 Qe6 g8R Bb7 Qg2 Rb3 Rg6 Rb4+ Rc4 Bf3 Bc5 Qc6 Re3 Qc8 Re6 Ba8 Qc6 Ne4 Bg3 Raa4 Qc7 Bd5 Be1 Ra5 Qb7 Ra6 Rab1 a1N Rb2 Re2 Ra2 Rb1 R4c3 Nb3+ Kd3 Nbd2 Kd4 Ra1 Ra5 Rb6 Ra4 Ba2 Bc6 Rb3 Bb5 Nf3+ Kd5 Ng1 Bc6 Nf6+ Kd6 Rbb1 Ke7 d6 Kf8 Rb4 Kg7 Bad5 Be8 Ne4 Kh8
B2N2Q1/3B1qBB/1n3Rnr/k2n3b/2bnBp2/1r3NQK/1R2Q2B/2r3q1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qc2 a4 Qd1 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Qe7 Na3 Qd7 Nb1 Qd8 Kf2 Kd7 e4 c5 d4 Kc7 g4 f5 Kg2 h5 b6+ Kb7 d6 a3 e5 c4 d5 Ka6 g5 a2 e6 f3+ Kh3 f2 b7 Qf8 e7 Kb5 e8B+ Bd7 a6 Qf7 g6 Bc6 d7 Rh6 d8B Ne7 a7 Nd7 b8Q+ Nb6 g7 Ka5 g8B c3 d6 c2 d7 Bb5 Bf4 c1R Bh2 Bc4 Nf3 Ng6 Bd3 f1N Bf6 Ne3 d8Q Nd5 Qg3 f4 Bh7 Rb8 Na3 Rb7 Rb1 a1N a8B Nb3 Bg7 Nd4 Bd7 Rb8 Qg8 Rb7 Kg2 h3+ Kg1 h4 Nb5 Rb8 Nd6 Rb7 Kf2 Rb8 Qe2 Rb7 Bg1 h2 Kg2 Rb8 Kh3 Rb7 Kg4 h3 Rb2 Rb8 Be4 Rb7 Bf2 Rb8 Re1 h1B Bg1 h2 Rd1 Bg2 Re1 h1Q Bh2 Qg1 Nb7+ Ka6 Nd8 Ka5 Nh4 Bh1 Kh3 Bf3 Rd1 Bh5 Nf3 Nc8 Rdd2 Rb3 Rdc2 Ncb6 Rc3 Bb5 Rc6 Bc4 Rf6
1B1k4/1B1Br3/p1nN4/br3n2/6rq/1B1QQ1Rb/bK1QNr1B/3B1Rb1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 b6 d5 cxd5 Ke7 b7 Ke8 h4 gxh4 b4 Ne7 d6 Ng8 d7+ Ke7 b5 Bh6 Nc3 Bg7 Nb1 Bf8 Qc2 a6 Ra4 Kd6 Ra2 Qg5 Qd1 Ke7 Ra1 Qc5 Nh3 Qe3 Ng1 Qa7 b6 Kd6 bxa7 Ke7 e4 h5 d4 c5 Kd2 f5 Kc2 h3 g4 h4 g5 h2 g6 c4 e5 f3 e6 c3 g7 f4 d5 h3 Qd4 f2 Qa4 f3 Nd2 Nc6 b8B Nh6 g8B Kd8 Ra3 Bc5 Qf4 Rh7 Ne4 Re7 Nd6 Nf5 Be2 f1B Qe3 f2 Bd1 Bc4 Ne2 Ba2 Rf1 h1R Bd2 h2 Kc1 c2 Kb2 Bb3 Bc3 Bc4 Be5 Rg1 Rb3 h1Q Bh2 Rg4 Rc3 Re8 Rd3 Ba2 Bf7 Ke7 d8Q+ Kf8 Qg3 Qe4 Nb7 Rg6 d6 Qg4 d7 Nh4 Bc7 Rb8 Re1 f1R a8B Bg1 Qf3 Rf2 Rf1 Qc4 Qe4 Rg8 Rg3 Rg5 Qe3 c1B+ Ka1 Bd2 Kb2 Ba5 e7+ Kg7 Bd5 Kf6 Bd6 Qe4 B5b3 Rg7 Bf4 Reg8 e8B+ Qe7 Nc5 Rb5 Bb8 Rf7 Bb7 Rg6 Qh6 Rg7 Qb6 Rh7 d8Q Bh3 Qhd2 Rg4 Q8d3 Nf5 Qa7 Qd8 Qb6 Ke7 Bd7 Rhg7 Ne4 Qh8 Rf3 Qh4 Qbe3 Kd8 Rg3 Re7 Nd6
r1QR1q1Q/1n3B1p/Bk1NQ1Qq/3rn1n1/RQ1r1N2/5R2/1Kb4n/2n4Q b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 h4 Qd7 b3 Qh3 Bb2 Kd8 Bd4 Be7 Bf2 Bg5 hxg5 Ba6 g6 Bb7 Qc1 gxf2+ Kd1 Ke7 g4 Ke8 g5 Qc8 Kc2 Ba6 Qd1 Qd8 Kc1 Bc8 d4 Kd7 e4 f5 b4 c5 b6 a5 g7 c4 e5 c3 g6 f3 d6 Kc6 e6 c2 b7 a4 e7 a3 e8B+ Bd7 d5+ Kb6 b5 a2 Kb2 c1N Ne2 f4 Nbc3 Qh4 Bf7 Bg4 d7 Nc6 d8R Ne5 d6 Nh6 g8Q Bf5 d7 Bc2 g7 Ra4 Qd5 Rd4 Rh3 Nf5 Ne4 Qh6 Rg3 Nd6 b8Q+ Nb7 Qe8 Rf8 Nd6 Rh8 Qee6 Rf8 Bh3 f1Q g8Q f2 Qh1 f3 Qgg6 Re8 Nf4 Rd5 Rb1 a1R Qc8 Ra4 Ra1 Rad4 Ra4 Qe1 Qgg4 f1N Qgg6 f2 Rf3 Nd2 Bf1 Ne4 Be2 f1N Bd3 Ng5 Bc4 Nc6 Be2 Kc5 b6 Qf2 Bd3 Nh2 Ba6 Na5 b7 Kb6 b8Q+ Nb7 Qa8 Ne5 Qc3 Rd3 Qac8 R3d4 Qb4+ Rb5 Qc3 Re7 Bg8 Qf1 Qc8 Na5 Rc3 Qhh3 Ng2 Rg7 Rf8 Qh6 d8Q+ Rc7 Qdf6 Ra7 Qh8 Ra8 Rd8 Qff8 Nf4 Nb7 Rca3 Ka7 Rf3 Rbd5 Qa3 Kb6 Bf7 Qh4 Qac3 Qhh6 Qb4+
K2NBQb1/n7/b1B1rB2/N1nr2br/1RNn4/1B6/Bpr3B1/2k1Q1rR b - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 a5 f4 d5 b4 axb4 c3 e5 c4 exf4 cxd5 c4 Nd2 Qd6 Nb1 Qc5 dxc5 Ra6 Rh6 Ra4 Rh1 Ra8 Kd2 Kd7 e4 b5 a4 f5 g4 h5 a5 f3 Ke3 f2 Kd4 b3 a6 f4 e5 b4 d6 Kc6 a7 Kb5 Kd5 f3 d7 b2 d8N h4 g6 h3 g5 b3 g7 Kb4 c6 c3 g6 h2 e6 c2 c7 Be7 Bd3 f1B Nb7 f2 Nd2 Kc3 Nc4 b1R Bg5 c1N Ra4 b2 Nf3 Rh6 Nfd2 Nb3 Nd8 Nd4 Bf6 Nd7 Qe1 Rd1 Na5 Nc5 Be4 Bca6 Bg2 Kc2 c8Q Kc1 Ndc4 Be2 Qb8 f1R Rb4 Rg1 Qc8 Rb8 a8B Rb7 Qb8 Rc7 Bc6 Bd3 Qc8 Bb1 Qa8 Ba2 Qc8 Bd6 e7 Bf4 e8B Bg5 Kd6 Ne7 g8B Bb3 Qa8 Nc8+ Kd5 Na7 g7 Rc8 Be6 Rh5 g8B Rc7 Kd6 Re7 Bed5 Re6+ Kc7 Ba2 Kb8 Bb3 Bh3 Rg2 Bgf7 Rc2 Bhg2 Ba2 Qb7 Bb3 Qe7 Ba2 Qf8 Bb3 Rf1 h1R Ka8 Rg1 Ne3 Ba4 Ba2 B4b5 Bb3 Bd3 Nec4 Bh7 Rf4 Bg8 Rh4 Rce2 Rh2 Rc2 Rh1 Re4 Nb6 Nf3 Ba2 Re5 Bfb3 Re6 Qc3 Rd5 Nbc4 Nd4 Qe1+
4bBR1/BQQ5/k6r/n4R1Q/2rQrN2/2pn1nNK/b1N3Q1/b1n2nQ1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Bh3 f4 Ra2 Qg5 Ra1 Qf5 gxf5 Kd7 Bg4 hxg4 Qa4 Ke7 Qd1 Ke8 Kf1 Kd7 e4 g5 d4 a5 b4 c5 h4 Kc7 d6+ Kb6 d5 c4 f6 a4 e5 c3 f7 g3 e6 f2 Kg2 f1R e7 g4 e8Q a3 d7 a2 d8N Bc5 f8B Ra4 h5 Nd7 h6 Ngf6 h7 Ne5 d6 Nd5 d7 Re1 Na3 Re4 Ne6 Nd3 d8Q+ Kb7 b6 Bd7 b5 Rac4 Qh5 Be8 Nc2 Ba3 Rb1 a1N Ne2 Bb2 Qg1 Nb3 Qdg5 Ba1 Be3 Na5 Rf1 Nb2 Rh3 f3+ Kh1 f2 Kg2 Nd3 N6f4 N5b4 Rh4 Nc1 Rh3 Nbd3 Rh1 Rg8 h8Q Rg6 Qd4 Rh6 Rh4 Kc8 b7+ Kc7 Kh1 g2+ Kh2 g3+ Kh3 Kb8 Rg4 Kc7 Re1 f1B b6+ Kc6 Nd5 Kb5 b8Q Ka6 b7 Bd7 Qc7 Be8 Nef4 Be2 b8Q Bf3 Rf1 Bd1 Ne1 Bb3 Nc2 Ba2 Ne2 Re5 Ndf4 Re4 Qf2 g1N+ Kg2 Nf3 Kh3 g2 Qg1 Bc6 Ng3 Be8 Qgd5 Nd2 Rg8 Ra4 Qb1 Rc4 Q4c5 Bd7+ Ne6 Bb3 Qh2 Be8 Rf5 Nf1 Nf4 Ba2 Qb3 Ree6 Qc5d6+ Rc6 Ba7 Re3 Qf3 Re4 Qd4 g1N+ Kg2 Nge2 Kh3 Rc4 Qfg2 Ng1+ Kg4 Nh3 Qhg1 Ng5 Kh4 Nf3+ Kh3 Nfe1 Qbb8 Nf3 Qbb7+
2r2bnN/1B5q/R5R1/2kpr1rN/n1Rr1BqN/1qqB4/N1Q4K/3NB3 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Kf2 h5 Kg2 d5 c4 Kd7 b4 Kd6 g6 a5 f6 e5 g7 a4 g5 a3 g6 h4 f7 d3 b6 h3+ Kh2 e4 b5 a2 c5+ Kd7 b7 f3 b6 Kc6 Nc3 f2 Nf3 e3 Bd2 e2 Qc2 e1Q Nh4 Qde7 Nd1 Kb5 c6 Rh6 c7 Q1e3 c8B Q7g5 Be1 Na6 b8N Nc7 b7 Na6 Nc6 Rh5 b8B Nc5 Bb7 Qg4 Bf4 Na4 Nb4 Rg5 Rb1 a1Q Na2+ Qb2 Be2 f1R Rg1 Be7 f8N Qb3 Rg2 Kb6 Rg1 d2 Bd3 Rc8 Rg3 Nf6 g8R Ba3 Rh8 Ng8 g7 Rf2+ Rg2 Re2 Nfg6 Bf8 Rh6 Qd4 Rb2 Qc3 Nh8+ Kc5 Ra6 Ree5 Rg3 Qbc4 Rb4 Q4b3 Ne3 d1R Rg2 Nh6 g8N Rd2 Nf6 Ng8 Nh5 Rd1 Bh7 Rd3 Nd1 Rd4 Kh1 h2 Bd3 Qd7 Rg4 Qg7 Kg2 h1Q+ Kg3 Qe4 Kh2 Qgh7 Rg2 Rgf5 Rgg6 Rg5 Bfd2 Qf3 Bf4 Qg4 Rc4+
1Nr2R2/nQ1R1bNB/b2B1kpr/3Nn1n1/NBb4n/3r3b/R7/NR2K3 b - - 0 1 legal: proof: d4 b5 h4 f5 a4 e5 axb5 c5 g4 cxd4 h5 f4 h6 g6 f3 Bg7 hxg7 Qg5 Na3 e4 Nb1 Qf5 gxf5 exf3 c4 Ke7 e4 a5 b4 h5 c5 d5 e5 h4 e6 h3 c6 d3 c7 d4 b6 h2 b7 a4 b5 f2+ Kd2 f3 b6 a3 Be2 f1B Qb3 f2 Ra2 Bh3 Nc3 f1B Na4 Rh6 Ke1 Nd7 b8N Ne5 b7 Kf6 Bd2 Ne7 g8R N7c6 e7 Na7 Rd8 Be6 c8N Bc4 Bb4 d2+ Kd1 Bf7 Bc4 Bd3 Be6 Bc4 Nf3 Ba6 Rf1 h1B Ne1 Bd5 Rd7 Bdc4 e8N+ Kg5 Rb2 a2 f6 a1N Ncb6 Nc2 Ra2 Bg8 Nd3 Ne1 f7 N1f3 f8R Nh4 Ng7 Bf7 Re1 Kf6 Nd5+ Kg5 Ke2 d1N Rh1 Nf2 Rb1 Ne4 Ke1 Ng4 Qb2 Ne5 Nc1 d3 Nb3 d2+ Kd1 Be8 Bg8 Bf7 Na1 Bhf1 Ndb6 Kf6 Bh7 Bh3 Nd5+ Kg5 Kc2 d1R Qb3 Rd3 Qb2 Rb3 Kd1 Rf3 Ke1 Rd3 Nc6 Rc8 b8B Bf1 B8d6 Bh3 Nde7 Kf6 Nb8 Ng5 Qg2 Nf5 Qb7 Nh4 Nd5+
3q1QRb/p1q1r1q1/1k3rQ1/3rB2n/Q1Q1K1BN/1R1R4/3QQ3/qNrr4 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Bg2 f4 Bf1 Bb7 Na3 Be4 Nb1 Bf5 gxf5 Nc6 h4 g4 Rh3 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Qa5+ Nc3 Qc7 Nb1 Qd8 Kd2 d5 Kd3 Kd7 c4 Kc7 e4 h5 b4 g3 c5 f2 b6+ Kc6 g6 g2 e5 f3 f6 h4 b7 h3 b8Q h2 e6 Qa5 e7 Qa4 g7 Qa2 f7 Nf6 g8Q Rh7 Qd2 Nh5 Qe5 Bg7 f8Q Qa5 Qee2 Bh8 Bb2 Rd8 Ra3 Qc7 e8Q+ Kb7 b5 Re7 c6+ Kb6 Rb3 Rdd7 Nh3 g1Q Nf4 Qg7 Bh3 f1Q Ng2 f2 Nh4 Qe1 Qgf7 f1R Bg4 Rf6 Qg6 Rd8 Rg1 h1R Rg3 Qc1 Ba1 Qa3 Bb2 Qa1 Rf3 Rc1 Re3 Qh2 c7 Rdd6 c8Q Rd8 Qc4 Qc7 Qdb4 Rdd6 Qa4 Rdd7 Qd8 Rdd6 Kd2 d3 Be5 Rdd7 Rf3 Rdd6 Ke3 d2 Rd3 d4+ Ke4 d1Q Rb3 Rd5 Rfd3 Kb7 b6 Qd2 Rf3 d3 Qdd7 Qa5 Re3 d2 Red3 d1R Qdd8 Rb5 Qdd4 Ka6 b7 Qd8 Qdc3 Kb6 Qcd2 Q5c3 Qcf7 Qc5 Qfc4 Qcc7 b8R+ Qb7+ Rd5 Qd6 Qg8 Qd7 Rf8 Qbc7 Rdd3 Qdd8 Q8f7 Qdc8 Rg8 Q8d8 Ra3 Ra5 Qf8 Rd5 Rab3+
q3bN2/BQ2R1bq/4R1n1/N2BN2Q/R2k1q2/RRb5/1R1p2nb/b2Kb3 b - - 0 1 illegal: No possible last move
1K1N1N2/1prNq1n1/rBBn1R1r/2Q2R1R/5q2/1q3q2/1N1krB2/2R1n2N b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 exf4 Qc2 f3 Kd1 f2 Qb3 Kd7 Kc2 Ra6 Kb2 Ra3 Qd1 Ra8 Kc2 Ke8 Nf3 f5 Nd4 g5 Nf3 f4 Ng1 f3 h3 g4 Bg2 Bd6 Bf1 Bf4 gxf4 g3 Kb2 Qg5 Kc2 Bg4 hxg4 Qd8 Kb3 Ke7 Kc4 Kf6 Kb5 c5 e4 h5 d4 b3 a4 h4 a5 g2 g5+ Kg6 a6 h3 a7 b2 f5+ Kh5 f6 Kg4 g6 c4 g7 h2 f7 c3 f8N c2 d6 Qg5+ Kb6 Nd7+ Kc7 Nc5 d7 Rb8 a8N Nb3 d8B Qb5 d5 Nf6 e5 Rh3 d6 Na5 d7 Qb3 Nc3 b1R e6 Nc4 e7 Rb2 e8R Nd6 Bb5 f1Q Nge2 g1N Qd5 f2 Re6 Qe1 Na4 f1Q N8b6 Nf3 Be3 Ra8 Ng3 Nh5 Rf6 Ra6 Kb8 c1R Rf5 Qfc4 Bf2 Qe7 Qc6 Rc3 Rac1 Re2 Nb2 Ne1 Bc7 Qce4 d8N Qf4 Nbd7 Rc5 Qb6 Kf3 g8R Rc6 Rg6 Ng7 Qa7 Rh6 Rgf6 Rcc2 Qd4 Rcc6 Bb6 Rc7 Rg1 h1Q Qc5 Qh3 Nh1 Ke4 Rgg5 Qhf3 Nc4 Kd3 Nb2+ Kd2 Rh5 Qbf7 Ba4 Q7b3 Bc6
N1B3r1/1Bb1p2N/nrn5/nQRB1R2/p2Q4/1b1Q1Q1K/k1b3rQ/Qq6 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 c4 fxe4 h4 d5 cxd5 g5 hxg5 Qd6 Ba3 Bf5 axb5 Bg4 b6 Bc8 b5 Qd8 Bb4 cxb4 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg3 h5 d4+ Kd6 g6 a5 b7 a4 b6 b3 g7 b2 g5 e3 f5 h4+ Kh3 e2 g6 e1R Nc3 b1B Qd2 Re4 Nb5+ Kd7 d6 Kc6 d7 Kd5 f6 Bd3 f7 Kc4 d5 Kb3 d6 Rg4 Nf3 Rh5 Bg2 Rd4 Raf1 Rb4 Ng5 Bc2 Nc7 Rh8 Nh7 Nc6 b8Q Na5 b7 Nf6 g8B Bh6 f8Q+ Nd5 g7 Bf4 Be6 Rg8 Qc3+ Ka2 Rhg1 Bg3 Rf5 Rb6 Rc1 Bb3 Qff6 Nb4 Qfd4 Raa6 Na8 Nbc6 Qdd3 Qe8 d8Q Qg6 d7 Bc7 Bh1 Qg1 Qf8 Qd1 d8Q Qc2 Re5 Qb1 Qff3 Bd7 Bg4 Bf5 Q8d4 Be4 Bc8 Bg6 Kg4 h3 Rf5 h2 Bg2 h1N Kh3 Ng3 Bh1 Rd8 g8B Ne4 Bd5 Rg8 Bg2 Nc5 Bh1 Bd8 Qbe5 Bc7 b8Q Rb5 Bg2 Rab6 Qh2 Rb4 Qb7 Rc4 Qa6 Rcb4 Qab5 Na6 Qf6 Re4 Qcd4 Re2 Rc5 Ne5 Bdb7 Nec6 Q4c3 Rf2 Qfd4 Rd2 Qfg4 Rb2 Bd5 Rg2 Qgf4 Bh5 Qfe3 Bd1 Qf3 Bc2 Qa1+
RKBr4/1R2bpp1/5Nn1/3qQbN1/1b2bn2/3B2NR/2b1r1N1/B2k2RN b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 c5 d4 b3 e4+ Kb4 b6 c4 b7 b2 h6 c3 h5 c2 d6 Kb3 h7 f3 h6 f2 d7 Nf6 d5 Nh5 d6 Be7 Rh3+ Ng3 Qe2 Rf8 h8N Rg8 h7 Re8 Nc3 b1B Nd1 Rg8 Bb2 c1B Ng6 Bf8 h8R Qc7 d8N Ra3 Nf4 Bf5 Ng2 Qc2 d7 Bb4 Ne6 Ba2 d8R Bg4 Ng5 Ra8 Rd7 Be1 Kd6 Qd3+ Kc7 Re8 e5 Bf5 e6 Bb1 e7 Nc6 b8N Nh5 Qe5 Kc2 Ne2 Qd5 Ng3 Bb4 Bd3+ Kd2 Rf8 f1B Nf2 Nf4 Nfh1 Kd1 Rfh8 Rd8 e8B Ra2 Re7 Be4 Nd7 Bc2 Nf6 Be2 Rg8 Bg4 Bd7 Bgf5 Bd4 Rb2 Bc8 Ra2 Rd7 Ne7 Kb8 Neg6 Rb7 Be7 Re8 Rb2 Ra8 Bd2 Reh8 Bdb4 R8h4 Ba4 Rg4 Re2 Ba1 Ne6 Rf4 Bc2 Rf3 Nef4 Rf1+ Kd2 Ne1 Kc1 Rg1 Kd1 Ng2+
2b4N/kBR5/3Q2BK/NnqB2NR/r1R1p1pR/2q1n2r/4Rb2/2n1Bn2 b - - 0 1 legal: proof: c4 b5 f4 f5 g4 d5 cxd5 g5 e4 fxe4 a4 h5 axb5 Qd6 fxg5 Nf6 g6 Qd8 g5 Ng8 Qg4 hxg4 Kf2 Kd7 Kg3 c5 Kf4 Kc7 d4 Kb7 b4 a5 h4 c4 d6 a4 b6 e6 d7 e3 g7 c3 g6 e2 h5 e1Q d5 c2 d6 a3 b5 a2 h6 Nf6 Kg5 e5 g8B e4 g7 Qd1 h7 Ra3 Bd2 c1N Kh6 Ra7 Be1 Nc6 Na3 Qd3 Nh3 Ne5 Nc4 Nd5 Na5+ Ka8 b7+ Kb8 Bf7 Nc6 Ng5 Qb1 Rh4 Nb3 Bg6 Qb6 d8Q Ncb4 d7 Qc2 Rc1 Rg8 h8N a1N Be2 Qcc5 Rc4 Qbc6 Qe7 Qf6 d8R Nac2 Rd7 Nbd4 Rc7 Nd3 Qd6 Nc1 Bd3 Be7 Bf1 Re8 g8B Nde3 Bd5 Ra8 Bd3 Nf1 Be2 Ka7 b8R+ Bb7 Rd8 Nce3 Rdd7 Bd8 Rh7 Rf8 Rh5 Qe5 Rh4 Rf3 Bd3 Rh3 b6+ Kb8 Be2 Bc8 b7 Nb5 Rh5 Ka7 b8R+ Bb7 Rh4 Qc3 Bd3 Bf6 Rf8 Be5 Rf2 Bg3 Re2 Bf2 Rh5 Kb8 Rh4 Bc8 Bb7 Ra6 Bc2 Ka7 Ba4 Na3 Bac6 Nb5 Bd5 Qc2 Nb3 Ra4 Na5 Qb3 Kg7 Qd3 R7h5 Qc3+ Kh6
R2k4/1r5b/bRq1Bnb1/pQb1N3/Bp1bB1rN/4R1Nr/5BK1/3N3N b - - 0 1 legal: proof: b4 d5 h4 a5 c4 g5 cxd5 gxh4 e4 f5 b5 Na6 bxa6 Qd7 a4 Qxa4 exf5 Qa2 d4 e5 f4 h5 g4 b5 a7 c5 f6 h3 d6 c4 f5 h2 f7+ Kd7 g5 e4 d5 h4 g6 e3 f6 b4 g7 h3 Qh5 c3 Bb5+ Kd8 Kf1 c2 d7 Qa3 Ba4 Nh6 g8B Qc3 Ra3 Ba6+ Ne2 Rc8 a8B Bd6 f8R+ Kc7 d8N Bg3 d6+ Kb6 f7 Ng4 d7 Kc7 Nc6 Rb8 d8N Rh6 Qb5 Bd6 Ng3 Nf6 Nb7 Bc5 Nd6 Rb7 Ndf5 Kd7 Rg1 h1B Ne5+ Kc7 Rb8 h2 f8N Be4 Be6 h1B Nfg6 Rh3 Ngh4 Bhf3 Rf8 Bh5 Nh1 Bg6 Nfg3 Bh7 Re8 Beg6 Kg2 e2 Be3 c1B Bf2 e1R Rb8 Qc4 Re3 Bb2 Nc3 Rb1 Nd1 Bbd4 Rd8 Rb2 Rd6 Re2 Rb6 Kd8 Rd3 Re4 Re3 Rg4 Rge1 Re7 Be4 Rb7 R1e2 Qd5 Rc2 Bd6 Rc7 Qc6 Re7 B6c5 Rc7 Rb8 Ra7 Rb7 Ra8+
n2rb3/N2BR1Rp/BN1n4/2K2Qp1/b2N2B1/2N5/3n1RqR/b1k1R1nn b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 f5 a4 fxg4 axb5 Be7 d6 Bf5 d5 Bf8 Be3 Bc8 h4 g5 Bc5 a5 Bd4 exd4 h5 Ne7 Kd2 Rg8 Ke1 Rg6 hxg6 Ng8 Ra3 Bb7 Ra4 Bc8 Ra1 Bd7 Nc3 Qf6 Ra3 Kd8 Nf3 Ne7 Kd2 Bg7 Rh3 Na6 Na2 Rc8 Rh1 Nb8 Ng1 Bf5 Ra4 Kd7 Rh2 Rh8 Ke1 Ng8 Rh1 Ke8 Nc3 Bc8 Nb1 Bf8 Ra1 Qd8 Kd2 Kd7 Kd3 c5 Kc4 d3 b4 g3 e4 g2 f4 a4 f5 a3 e5 d2 b6 a2 b7 Qf6 g7 Qd8 b5 Nh6 g8B Nc6 b8N+ Ke8 f6 Bf5 b6 Bg6 e6 Nb4 b7 Nf5 e7 Na6 Nc6 Kd7 f7 Nc7 Nf3 g1N Na7 Qa8 Qc2 d1B Nc3 Bg7 f8R Be8 Nd4 Be5 Qb1 Ba4 Rh2 Bf6 Qe4 Bg7 Rd1 a1N Re1 Nb3 Rf7 Bf6 Rg7 Be5 Bf7 Rg8 Bh5 Nd2+ Kd3 Rf8 Bg4 Rg8 b8R Qc6 Nc8 Na8 Rbb1 Qb7 Ree2 Rf8 Rbe1 Rh8 Ref2 Rf8 Na2 c4+ Kc3 Qc6 Kb4 c3 Ba6 c2 Nc3 c1N Qc2 Qb7+ Kc5 Nce2 Qd3 Ng3 Qf3 Bh5 Qf4 Nh1 e8B+ Kd8 d7 Kc7 Qf3 Nd6 d8R+ Bf7 Bed7 Be8 Re7 Qb2 Nb6 Qc2 Qg2 Qe4 Qh3 Qg2 Qd3 Rh8 Qf5 Bg7 Nc6 Bf6 Na7 Rf8 Ne4 Ba1 Nc3 Bf7 Bb7 N6c4 Ba6 Rh8 Rg8 Bg6 Kd4 Kd6 Rgg7 Rb8 Bdb5 Be8 Kd3 Kc5 d6+ Kb4 Kd4 Kb3 d7 Kb2 d8N Rc8 Ne6 Nd6 Bd7 Rb8 Kc5 Rd8 Re3 Kc1 Nd4 Ng3 R3e5 Nh1 Re1+
3NQq1N/2B3R1/2n1r3/1q1qN2p/1q2R1b1/R3B2q/1rBN2pn/3NkBK1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 e4 Kd7 b4 Kd6 d4 f5 b6 h5 g6 a5 g7 c5 b7 f4 b5 f3 b6 a4 Rh3 c4 Nd2 a3 Qe2 c3 Rh4 a2 Nh3 g2 Kf2 c2 Kg1 Nc6 b8N Nh6 g8R Qf8 b7 Ra6 Nd7 Rb6 Ne5 Rb2 Nf2 Bd7 Nd1 f2+ Kh2 Rh7 Qe3 Re7 Rg7 Re6 Qe1 Kc7 b8B+ Kb6 d6 Ka5 d5 Kb4 Bc7 g3+ Kh3 Bc8 d7 g1Q d8N g2 d6 Ng4 d7 Nh2 Ndf7 Qh1 d8N Bd7 Nh8 Bc8 Bd3 f1Q Ba6 Q1f7 Bf1 Qd7 Rf4 Qd5 Kg3 Bd7 Kf2 Qb5 Ndf3+ Kb3 Be3 c1Q+ Nd2+ Kc2 Qe2 Qb1 Qe1 Nf3 Rh4 Qh3 Rhg4 Nh2+ Kg1 Qbb4 Qe2 Bc8 Qb5 Nd4 Qe8 Bd7 Nef7 Nc6 e5 Rg6 Rd4 Bg4 e6 Qb5 e7 Re6 Ne5 Qd5 Nf2 Qe1 Ra4 Qe2 Re1 a1Q Nd1 Qb1 Ra3 Qeb5 Qf7 Bf3 e8B Bg4 Bd7 Kc1 Qe8 Qbe4 Bc8 Qeb4 Ba6 Kc2 Bd3+ Kc1 Bc2 Qa2 Bf4 Q5a5 Re4 Q2d5 Bf1 Qab5 Ndc4+ Qbd2 Nce3 Qdb4 Bg5 Kd2 Bh6 Ke1 N3c4+ Be2 Be3 Bg4 Nd2
2R1K3/3Q2r1/1Rbb3p/1NBnNNNB/1QpN1qN1/2nQ4/1q1b3b/bk6 b - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 Kd7 d4 Kd6 Kd2 c5 Kc3 f5 Kc4 h6 e4 g2 e5+ Ke7 e6 Kd6 b6 a4 Kb5 c4 b7 g3 g6 a3 e7 f4 e8N+ Kd7 d6 Ke6 g7 Kf5 d5 Ke4 d7 f3 d6 a2 Ba3 f2 Nh3 g1B Qd3+ Ke5 Ng5 g2 Be2 f1Q Bh5 Rh7 Nc3 Qdf6 d8N Be3 d7 g1B Nd6 Bd4 Nf5 Bdf2 Ndf7+ Kf4 d8Q Qe6 Q8d7 Be3 Ne5 Nc6 b8Q Nge7 g8N Nd5 Nf6 Nce7 Nfg4 Bh2 Rg1 Bc1 Rb1 a1B Kc5 Ba6 b5 Bd2 b6 Rg7 b7 Qf6 Rb6 Bb5 Qbd6 Qc1 b8N Bc6 Nb5 Nc3 Re1 Ned5 Bb4 Ba8 Nbc6 Qb2 Ncd4 Qf7 Q6e7 Bb7 Kd6 Bc6 Ng3 Qf5 Bc5 Qe4 Ke6 Qf3 Qed6 Qf1 Qb8 Bd6 Ngf5 Be3 Qba7 Qfg2 Qa5 Qgf2 Nef3 Qg3 Qb4 Bd2 Qe2 Rg8 Kf7 Rg7+ Ke8 Qf2 Kd8 Qe3 Qf1 Qf2 Re8 Qe3 Nge6+ Ke4 Qh3 Kd3 Neg5 Qf4 Rh8 Be1 Nfe5+ Kd2 Qd3+ Kc1 Rf8 Bd2 Ke8 Rg8 Kf7 Rg6 Rc8 Rg8 Qh3 Rg7+ Ke8 Kb1 Qd3+
Kb1r1B2/2N4p/1q1q2Nr/1bB5/n1kRQ1q1/p2N1q2/4RRR1/B1q1B1R1 b - - 0 1 illegal: No possible last move, all moves rejected
3Q1n2/3N2bp/Q1q5/QRRk1pNK/q1bB1b2/bb3NQ1/1Q2n2B/r3Q3 b - - 0 1 illegal: No possible last move
kN2K2b/1b2N1b1/3BNqQ1/B7/RNqrN3/1rnQ2pr/p2N4/4Rb1R b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Ra5 f4 Bh3 Nc6 Ra4 Nce7 Ra1 Nf5 gxf5 Nh6 Bg4 hxg4 Qc2 Ng8 Qa4 Kd7 Qd1 Ke8 Kf2 Kd7 b4 c5 d4 Kc7 e4 Kb7 h4 a5 h5 g5 e5 a4 h6 a3 b6 c4 e6 a2 e7 c3 e8Q c2 d6 Kb8 b7 Be7 f6 Bf5 d5 Qc8 h7 Ra5 d7 Be6 d8B Qc6 f7 Qd6 f8N Rb5 Ng6 Qc7 d6 Bd5 d7 Rb6 b5 Be6 Nh3 Nf6 Qd3 Nd5 Ba3 c1R Bd6 Rd1 Nd2 Bf6 Ne7 Nc3 Qeg6 Bd5 Re1 Ka7 b8N Ka8 Na6 Bb7 Nb4 Qc4 B8c7 Be5 d8N Bg7 Ne6 g3+ Kg1 g2 Kf2 g4 Nhg5 Rc6 Ba5 Rb6 Nge4 g1B+ Kf1 f2 Kg2 f3+ Kg3 f1Q Kh4 f2 Kh5 Rf8 h8R g3 Kg5 Rg8 Rh4 Rh8 Rg4 Rh3 Kf5 Bh6 Kf6 Bg7+ Kf7 Bh8 Ke8 Bg7 Nb1 Rd2 Qe3 Rd4 Qd3 Qe2 Nbd2 f1B Rab1 Qf3 Rbc1 Qf6 Rf4 Rc6 b6 Rc5 Ra1 Rb5 Rad1 Be3 Rg4 Beh6 Rh4 Bh8 Rb1 Ba6 Rbd1 B6g7 b7+ Ka7 b8N Ka8 Rf4 Bb7 Rg4 Rh6 Rh4 Rh7 Rh1 Rh3 Rb1 Rb6 Rb3 Rb5 Ra3 Rb6 Ra4 Rb5 Nbd5 Rb3 Nb4
2b1N1N1/Rn3q2/R1r1k2n/R3qNb1/2p5/BQ2bN1B/6Np/1QnKn1N1 b - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 Kd7 e4 h5 d4 f5 d6 c5 g6 f4 d5 g2 b6 f3 g7 h4 b7 g3 e5 c4 e6+ Ke8 e7 Kf7 e8N a4 b5 h3 b6 a3 d7 a2 d6 h2 Ba3 Nc6 b8Q Qh4 d8R Qg5 b7 Ke6 d7 Be7 Nd2 Na5 Qb1 f2+ Kd1 Nh6 g8N Qe5 Ndf3 Rh7 Nd6 Bg5 Nf5 Rf7 Rf8 Rf6 d8N+ Kd5 Rf7 Rc6 Nh3 g1B Ne6 g2 Rh7 Qh8 Qg3 Qf6 b8N Qe5 Ra7 Nb7 Nd7 Qg7 Nef8 Qe5 Ng6 Ke6 Ngh4 Qc7 Be2 Qe5 Ndf6 f1Q+ Kc2 Qc7 Ne8 B1e3 Nhg1 Qe5 Qh3 Qf2 Kd1 Qf1+ Ne1 Qf2 Bg4 Qf1 Nhf3 Qf2 Ne2 g1N Qg3 Qf1 Bh3 Qf2 Ng2 Qf1+ Nfe1 Nf3 Ng1 Qf2 Nc2 Ne1 Ncd4+ Kd7 Ndf3 Ke6 Qb3 Qf1 Qg4 Qf2 Qe4 Qf1 Rc1 a1N Qeb1 Qf2 Rc2 Qf1 Rd2 Qf2 Rd5 Qf1 Rda5 Qf2 Qb4 Nb3 Qc3 Nc1 Qcb3 Qf1 R5a6 Bd4 Bc5 Qg7 Nfe7+ Kf7 Qa1 Ne2 Nfh4 Ng3 Ne2 Qff6 Nef5 Nc2 Nf3 Qe5 Rf1 Qgf6 Rf2 Ne1 Neg1 Ke6 Rfa2 Qf7 Qab1 Bde3 R2a3 Ne2 R3a5 Nc1 Ba3
2Q1BK2/R1nRp3/2kB2N1/3r1bB1/3r1B2/1Q2br1B/1nB1bNp1/rR1r4 b - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 b5 e4 f5 exf5 c5 axb5 cxd4 Ba3 a4 Bc1 Qa5 bxa5 Rh6 Na3 Rh7 Nb1 Rh8 Kd2 d5 Kd3 Kd7 c4 g5 h4 g3 f4 a3 b6 g4 c5 g2 h5 g3 f6 a2 h6 Na6 c6+ Kd6 b7 Ra7 b8B+ Kc5 f5 Rb7 c7 Rh7 f7 Rb4 f6 Rb3+ Nc3 Bg7 f8R Rb2 f7 Rb6 Nh3 g1R Nf2 g2 Bg5 Rd6 Ne2 Be5 Rd8 Rd7 f8B Kd6 Qb3 Bh2 Nf4 Nf6 Ng6 Rf7 h7 Nh5 h8Q Bf4 Bfh6 Kc6 Qg8 Rd6 Rd7 Be3 Be2 Rf8 Bd1 Rf3 Bc2 Rc1 Rb1 a1R Bf4 Ra4 Bhg5 Re1 Ra1 Rc4 Ra4 Ra1 Rb1 Rc5 Rd8 Bg4 c8B Nc7 a6 Be6 a7 Bf5+ Ke2 Ra5 Be6 Rc5 Rd7 Rc4 Qc8 d3+ Kd1 d2 Ke2 Re4 Kd3 d4 Kc4 d1R Ra2 Re5 Ra4 d3 Ra5 Be4 Bh3 d2 Ra3 Rb5 Ra2 Bf5 a8B+ Kb6 Ra7 Rd4+ Kc3 Kc5 Bd5 Rba5 Bf7 Kc6 Bd6 Nf4 Be8 Nd3 Bdf4 Re1 Bd6 d1B Bdf4 Rdd5 Kc4 Be2 Bd6 Rd1 Bdf4 Bd2 Bd6 Rdb5 Kd4 Nb2 Bdf4 R5a2 Bd6 Rb4+ Ke5 Ra5+ Bc5 Be3 Qa4+ Bb5 Qb3 Rbd4 Bb4 Kb6 Ba3 Na6 Bc7+ Kc6 Bb4 Be4 Ke6 Bf5+ Kf7 Be2 Bcf4+ Nc7 Bbd6 Rad5 Kf8
Q4Q2/b1QQrBN1/Bn1n1r1b/4pb2/Rp4r1/1n1k1b2/KQ1N4/QR1B4 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Ra7 h4 Be6 h5 Ra8 Bb2 Bd7 Be5 Bc8 Bf4 gxf4 g5 Qd7 Qg4 Qe6+ Qe2 Qf7 Qd1 Qg6 hxg6 Ra4 Bc4 Ra7 Bf1 Ra8 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb2 e5 a4 h5 f7 b5 g7 f3 f6 c4 a5 f2 g6 h4 a6 b3 a7 b4 Ne2 h3 Ng3 h2 Ra4 Be7 f8Q Bf5 f7 Nd7 Nh5 Re8 a8Q Nh6 g8B Nb6 g7 c3+ Ka1 b2+ Ka2 c2 Nd2 b1N Ba6 c1B Rg1 Kd7 d6 Ke6 d7 f1R d8Q h1B Qc7 Bf3 Qdc2 Bh4 Qb2 Bf2 Qaa7 Re7 Qfa8 Rh7 f8Q+ Nf7 Rh1 Rh8 Bh7 Rg1 g8B Rg4 Ng7+ Kf6 Bg6 Rh6 d5 Kg5 d6 Kf4 d7 Ke3 d8Q Nd6 Be8 Rf6 Bb3 Bg1 Bd1 Bf2 Nb3 Nd2 Qdd7 Bg1 Bf7 Bf2 Na5 Nb3 Nc4+ Kd3 Rf1 Bh6 Nd2+ Ke3 Bc2 Bg1 Rb1 Bf2 Bd1 Bg1 Bc8 Kd3 Ba6+ Nc4 Qac5 Bh2 Qa1 Bg1 Q5c6 Ba7 Qac8 Ke3 Q8a8 Nb6 Qc1 Na5 Bb7 Kd3 Qcb2 Nb3 Ba6+
1Bn1Bn2/1k2nRKN/4R3/6R1/BnN2p2/1qr2nN1/Nq2pQ2/3BNqr1 b - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 d4 gxh4 e3 cxd4 Ke2 d3+ Kf3 d2 Ke2 Bg7 Ra3 Bh6 Ra1 Bf8 Kd3 e5 Be2 d5 Bf1 d4 Kc4 d3 Kb3 e4 Kc3 Bc5 f3 Bd4+ exd4 e3 Be2 Bf5 Bf1 Be4 fxe4 Qd6 Qg4 Qb6 Qd1 Qd8 b4 Kd7 g4 Kc7 b6+ Kc6 g5 a5 d5+ Kb7 Kd4 h5 Ke5 f5 c4 h3 d6 a4 g6 h2 c5 a3 g7 h4 d7 h3 b5 a2 Qe2 d1N Qf2 d2 Na3 Ne7 Kf6 Rh5 g8N Nb2 e5 d1N e6 Nc8+ e7 Nc4 Kg7 Nd2 e8B Ne4 Ne7 Ng3 Nc4 Ra4 c6+ Ka8 c7 Nb2 b7+ Ka7 b6+ Ka6 Nf3 Ra5 Rg1 h1Q Be2 h2 Bd1 e2 Bf4 Ra3 Ne1 Nf1 Rg5 Nd3 Bd6 f4 Nf5 Rc3 Ng3 Qf3 Rb1 Nc6 b8N+ Kb7 Na6 a1N Nb4 h1Q Na2 Nc2 Rbb5 Rh4 Rbe5 Rg4 Re6 N6e7 Be5 Ndb4 Bd6 Ka6 b7 Nd2 b8R Qf1 Rb7 Nd4 Be5+ Nb6 Bd6 Qb8 d8N Nbc8 Nf7 Qd3 Bea4 N2f3 Be8 Qc2 Ba4 Qb3 Be8 Nb6 c8B Qb2 Bcd7 Nbc8 B7a4 Qb3 Nh1 Rg1 Ng3 Qb2 Rd7 Qb6 Bb8 Qb3 Rdd5 Kb7 Rgf5 Qb5 Ng5 Qb2 Nh7 Qb6 Rc6 Qb5 Rf7 Ne6+ Kh8 Nf8 Rg5 Qd5 Kg7 Qd3 Rh6 Qdc2 Rd6 Qcb3 Re6
Nn3k2/B1K5/1rR2N2/qp1NR3/4prnB/N1r1b3/1B1Qpb2/1b1B1BR1 b - - 0 1 legal: proof: c4 f5 b4 d5 cxd5 a6 b5 axb5 a4 Qd7 e4 fxe4 a5 Qd8 h4 g5 hxg5 b6 axb6 Ra4 Be2 Ra5 Bf1 Ra8 Ke2 e5 Ke3 h5 f4 c5 g4 h4 d4 c4 d6 h3 g6 h2 d5 c3 b7 c2 d7+ Ke7 g7 Rh6 g5 Rf6 d6+ Kf7 g6+ Ke6 Nh3 Ra7 Rg1 h1R Na3 Qe7 d8B Kd7 f5 Ke8 Bb2 c1B+ Qd2 Nd7 b8B Qf7 Nf4 Be7 Nd5 Nh6 g8N Qf8 g7 Rb7 Ba7 Rf7 f6 Nb6 Rg5 Kd7 Rf5 Ke6 d7 Bd6 Be7 Qd8 Rh5 Qc7 d8R Nd7 Rb1 Rf8 f7 Qa5 Bh4 Nb8 Ngf6 Rb6 g8B Bb7 Rc8 Rh3+ Ke2 e3 Kd3 e4+ Kd4 Bg3 Re5+ Kd6 Ra1 e2 Rc3 Ng4 Rb1 Rc8 f8N Rc7 Rc4 Rf7 Ne6 Ba8 Nec7 Bf2+ Ne3 Bb7 Na8 Bd5 Rc3 Be6 Rc6+ Ke7 Kc5 Kf8 Kd6 Ba2 Ned5 Rc3 Ra1 Rg7 Bf7 Bb1 Kc7 Rg5 Ne3 Rf5 Bb3 Rf4 Bd1 Qa4 Ned5 Qa5 Qe1 Bce3 Qd2 Bd3 Rc1 Bb1 Bc2 Rf3 Bg2 Kg7 Rg1 Kf8 Bf1 Rf4 Bd1
1N1B2n1/kRRbQ1p1/N1bnr3/n6R/1r2p1N1/BpK5/1N2q3/r1BR1N2 b - - 0 1 illegal: No possible last move, all moves rejected
2N2Q2/1b2pBbB/n3b3/K4nkq/Rp1R1N1R/rB4Bp/1R1n3B/2N2r2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 Kd2 Kf7 f4 b5 a4 h5 g4 h4 g6+ Kf6 a5 b3 g7 d3 Kc3 b2 Kb4 d2 d6 Rh6 g5+ Kf7 d7 Rha6 g6+ Kf6 Bd3 Rd6 a6 Rc6 a7 Re6 Ra4 Qc7 d8B Qe5 Bc7 Qd5 Qf1 d1B Ka5 Ba6 Nh3 Nh6 g8B Re4 g7 Nd7 Bf7 Rc4 g8B Ne5 Nd2 b1N Nb3 Rd8 a8N Qe6 Nb6 b4 Nc8 Kg7 f6+ Kh8 f5 Bg7 Bd6 Nd2 Nf4 Bb7 Bc2 Rd7 Bh7 Rc3 Bb2 Rg3 Nc1 Ra3 Bb3 Nd3 Bbe5 Nc5 Rh2 h3 Bb8 Nf3 Rb2 Na6 Bh5 Bf8 Nfe2 Qg8 f7+ Qg7 f6 Qg6 Bh2 Bc2 Bbe5 Bf5 Beg3 Rd1 Qf2 Nd2 Qf1 Ng8 Qf2 Bh6 f8R Rf1 f7 Kg7 Rd8 Kf6 f8R+ Kg5 Rd4 Be6 Rff4 Bg7 Rh4 Nh6 Qf8 Nf5 Nf4 Qh6 Be8 Qh5 Bf7
1nbQRK1B/3B4/1R1pb1rB/3q2N1/n1p2k2/bB6/R1r1pQ2/2B1BN1b b - - 0 1 illegal: No possible last move
5bb1/Rn2NR2/2p1BB2/rk2B2N/n1QRq1p1/K1pnNb2/4B3/5RqB b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c3 d5 c4 dxc4 h3 g5 gxf5 a5 h4 g4 Qa4 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Qe7 Rh5 Qd6 Rh1 Qd8 d4 Kd7 Kd2 h5 Kc2 h4 b4 a4 Kb2 h3 e4 f3 g6 h2 e5 c3+ Ka3 f2 b6 Kc6 d5+ Kb7 f6 Bf5 d6 Kc6 e6 Rh3 d7 Be4 f7 Bg7 f8R Be5 b7 Rh6 e7 Bh8 e8B Bg7 b5+ Kc5 b6 Qf6 d8R Bf3 Qc2 Rh3 Be2 f1Q Qa2 Qe5 Nd2 Nh6 Rf7 Nf5 Bc6 Bf8 g7 Nd7 b8B Qe4 g8B Ne5 b7 Nd6 Nc4 Rh5 Nh3 Qg1 Bg5 Nd3 Ne3 Kb6 Bf6 Ra5 Nf4 Ka6 Bd5 Kb5 Ng6 c6 Ne7 Qh7 Bc7 Qe4 b8N Nb7 Bg3 Qd1 Re1 h1B Rf1 Qe1 Nd7 Qf2 Bge5 Qg1 Nc5 Bhg2 Ne6 Bh1 Ng7 Bhg2 Qc2 Bh1 Ka2 a3 Nh5 Bhg2 Kb3 a2 Be6 Bh1 Rd4 Bhg2 Ra4 Bh1 Ka3 Bhg2 Rad1 a1N Qa2 Nb3 Bh7 N3c5 Bg6 Ra8 Ra7 Na4 Bh7 Qf4 Bg6 Bd5 Bh7 Bgf3 Be4 Bc4 B4d5 Qe4 Rd2 Nc1 Rd4 Nd3 Nd1 Bb3 Ne3 Nbc5 Rh7 Qg6 Bf5 Bg2 Rd7 Ra5 Ra7 Nb7 Bde4 Bg8 Be6 Qf5 B4f3 Qe4 Rf7 Bh3 Bh1 Bg2 Bb3 Bf3 Bd5 Qg3 Be6 Qg1 Qc4+
4KR2/3r1N2/p3QQ2/B2nbpBk/2NQ1QQq/1r1npn2/3Q2Bq/3R2q1 b - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 Nd7 axb5 Nb8 d4 Nc6 d6 Bg7 e5 Bf6 d5 Nb8 Kd2 Kf8 f4 Bd7 e6 Bd4 f5 Bf2 f6 Nxf6 exd7 Ng8 Kc3 Kg7 Kb4 Kg6 g4 f5 b6 e5 Kb5 h5 b4 c5 g5 h3 b7 c4 Nd2 h2 Ngf3 h4 Bg2 e4 Ne5+ Kh7 g6+ Kh6 g7 h3 Nf7+ Kg6 Qg4+ Qg5 d8Q c3 d7 c2 d6 Rh4 Nc4 Bb6 Rd1 Nc6 b8Q Bc7 Qb6 h1Q Qd4 h2 Qd2 Nge7 g8Q+ Kf6 Qdf8 Rh3 d8B Rb3 d7 Be5 Ba5 Qg1 d8Q h1Q Q8d4 Qgh4 Kc5 Q4h2 b5 Nd5 b6 Rd8 b7 Rd7 b8Q a6 Rb1 Qh4 Qbb4 Qh1h2 Qa4 Rg3 Rb8 Rb3 Qab4 Ra7 Qdf4 Rd7 Be3 c1N Qbd2 Na7 Re8 Nb5 Kc6 Nd3 Rd8 Nbc7 Rc8 Ne6 Rb8 Ng5 Qd8+ Re7 Q8b6 Ra7 Rf8 Rd7 Qh8+ Kg6 Qf6+ Kh7 Qff2 Nf3 Bg5 e3 Qfg3 Re7 Q3f4 Rb7 Qc7 Ra7 Kd7 Rab7 Ke8 Ra7 Qfe7 Kg6 Qcd8 Rd7 Qe6+ Bf6 Qgg3 Kh5 Qde7 Be5 Q7f6 Rbb7 Qh3 Rb3 Qhg4+
4b1QQ/p6K/1pr2Q2/Q1kbNB1n/3pr1QN/4Q3/1Nq2qR1/1R1r1Bb1 b - - 0 1 legal: proof: e4 f5 exf5 g5 a4 b5 axb5 Nf6 h4 gxh4 b6 Ng8 b7 Na6 b8N Bg7 Nc6 Bh6 Nb8 Bf8 c4 Nb4 d4 Na6 b4 Bg7 c5 Bh6 c6 Be3 b5 Nc5 b6 Nh6 b7 Ng8 dxc5 Bg5 Bd2 Bh6 Ba5 Bf8 Bb6 cxb6 Ke2 h5 Kd3 d5 g4 e5 f4 Ke7 f6+ Ke6 c7 d4 Ke4 h3 c6 Kd6 g5 h2 f5 h4 f7 h3 g6 Rh6 f6 Qe7 g7 Qe6 Qe1 Kc5 Nd7+ Kd6 b8Q Qc4 Kf5 e4 Na3 e3 Ra2 e2 Nf3 Qa4 Nc4+ Kd5 Nh4 Qb3 Nb2 Bd6 f8Q Qc2+ Kg5 Bg3 f7 Bf2 Qe8 Bg1 f8Q Nf6 Ne5 Nh5 Qf6 Kc5 g8Q Bd7 Qee6 Be8 c8B Rh7 c7 Rh6 Qd2 e1Q Qef5 Qf2 Qe3 Qce2 Qg4 Qc2 Qb7 Rb8 Bf5 Rd8 Qa6 Rd5 Qff7 Rc6 c8Q Rd6 Qa4 Re6 Qf6 Re7 Kh6 Re6 Neg6 Re4 Kh7 Qd3 Ra1 Qdc2 Rb1 Qf4 Nh8 Bf7 Q8g7 Bf2 Qcg8 Be8 Qaa2 Qf3 Nf7 Qf4 Bc8 Qg3 Rg1 Qf3 Rg2 h1R Q7h8 h2 Bd3 Rd1 Be6 Bg1 Bf5 Qff2 Bf1 h1B Rg3 Rf4 Ne5 Bd5 Rg2 Re4 Qa5+
2Qr1Brb/2BQ4/2p5/R2NQB2/BBn1p1r1/krq4N/1r1np2K/1R1B4 b - - 0 1 illegal: No possible last move, all moves rejected
1nQ2Bb1/1BrR1B2/1QrrB2K/pBB3p1/b3Nb1k/2r5/pN1Rn3/5Q2 b - - 0 1 legal: proof: c4 b5 g4 g5 f4 f5 a4 d5 cxd5 Qd6 h4 fxg4 h5 e5 fxe5 Qg6 hxg6 bxa4 Kf2 Ke7 Kg3 a5 b4 h5 d4 c5 e4 c4 g7 c3 d6+ Ke6 b5 c2 d5+ Kf7 b6 Kg6 e6 a3 e7 a2 e8B+ Kf6 e5+ Kf5 b7 Nf6 g8B Rh7 e6 Bd7 e7 Bg7 Be6+ Ke5 Be3 c1R Nc3 Rh8 Ne4 Rg8 Bc5 Rf8 B8f7 Ba4 e8B Ra6 d7 Ra7 d6 Nd5 d8Q Nf4 d7 Rc3+ Qd3 Rh8 Ne2 Rh6 Qb6 Rg6 d8Q h4+ Kf2 g3+ Kf3 g2 Kg4 g1R+ Bg2 h3 Qc8 h2 Rd1 Bh8 Rd2 Rgc1 Rhd1 h1B Bb5 R1c2 Nc1 Ne2 Kh5 Kf4 Qh3 Be5 Rd7 Ra6 R1d2 Rg7 Bf8 Rc6 Kh6 R2c3 Bf3 Bc7 Qf1 Bg2 Nf2 Kg3 Ne4+ Kh4 Nd3 Bf4 Nb2 Rd6 Qe3 Rac6 Qb6 Bh3 Bg2 Bf5 Bh1 Bh7 Bf3 Na6 b8B Bg8 Ba7 Nb8 Nc5 Rc7 Bb7 Rcc6 Ne4 Rd4 Be8 Re7 Bf7 Rdd6 Rd8 Rec7 Rd7 Nc1 Qa6 Ne2 Bc5 Bh2 Qa7 Bf4 Qb6
Qr3Nn1/r2Q1QRQ/1N1qqq2/2k2p1B/q2r2p1/2R3B1/pQR3b1/Q1K5 b - - 0 1 legal: proof: d4 b5 h4 e5 g4 c5 a4 cxd4 axb5 f5 g5 Be7 f3 Bf6 f4 exf4 gxf6 g5 Be3 g4 Ra3 Nc6 Bc1 Ne5 Ra4 Nf7 Ra1 Ng5 hxg5 Qb6 Na3 Qc7 Nb1 Qd8 Kd2 h5 b4 a5 e4 d5 c4 Kd7 c5 a4 g6 d3 c6+ Kd6 c7 d4 g7 f3 b6 a3 f7 h4 f8Q+ Ne7 g8Q h3 e5+ Kc6 b7 a2 b8Q h2 e6 f2 b5+ Kd5 b6 Rh7 b7 Qd7 Qff7 Kc5 Nf3 Qd8 Ne5 Kb6 Ng6 Rh6 Nf8 Rh7 Na3 Ng6 e7 Qd6 e8Q Ne7 Qd7 Kc5 Nc4 Qe6 Bg2 f1R Bc6 Rf4 Ba4 Ra7 Qa8 Rh8 b8Q Bb7 Qgh7 Bg2 Qb2 Ng8 Bc6 Qf6 c8R Re4 Re1 h1Q Rb1 Qh2 Re3 Qhe5 Qg1 Qd5 Kd1 d2 Rc3 Qdd6 Qe1 Rf4 Qe5+ Qd5 Qa1 Re4 Rb7 Rf4 Kc2 d1Q+ Kb2 Re4 Bf4 d3 Bg3 Qa4 Kc1 Rd4 Qeb8 Qde6 Rcc7 Bd5 Rb2 Bh1 Rbc2 Bg2 Qbb2 Ne7 Ng6 Rb8 Nf8 Ng8 Qd8 Bh1 Be8+ Bc6 Rb7 Bg2 Qdd7 d2+ Kd1 Qg5 Qfh5 Qb4 Qd8 Rd3 Rg7 Qa4 Qd7 Qd8 Qhf7 Qdf6 Qfe7+ Rd6 Bh5 Be4 Ke2 d1Q+ Ke3 Qdd5 Qf7 Qdc6 Ke2 Rd4 Ke1 Qcd6 Ke2 Bd3+ Kd2 Be4+ Kc1 Bg2 Nb6+
1Q2Q3/1kb1R1K1/N5n1/qBBb1RN1/NB3B1p/p1p1B1nq/b3B3/2qq4 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 Bh3 dxc4 Bg2 b5 axb5 f3 Bh3 a6 Bf1 f4 h3 h5 Na3 g5 Nb1 a5 Qa4 Rh6 Qd1 Rf6 h4 Rf5 gxf5 g4 Qc2 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Ba3 Qb3 Be7 Qd1 Bf8 Kf2 Kd7 b4 c5 d4 Kc7 e4 h4 b6+ Kb7 e5 c3 g6 c4 f6 a4 f7 a3 b5 c2 g7 Nh6 g8B Qg5 e6 Qh5 e7 Nf5 e8Q Bb4 f8B Qh8 d5 Bc3 d6 Ka8 b7+ Ka7 d7 Kb6 d8B+ Ka7 b6+ Ka6 Bc5 Qe5 Bde7 Bd2 Nh3 Ba5 Qdd8 Nd7 b8B Bb7 Ng5 Ng3 B1e3 c1Q Be2 Nf8 Re1 Bd5 b7 Bc7 Nc3 Ng6 Na4 Qec3 Rb1 Qa5 Rb5 c3 Bb4 Qd1 B7c5 Ba2 Bgc4 Qc1 Kg1 f2+ Kg2 f1B+ Kh2 f3 Bcd3 Bb6 Bbf4 f2 b8N+ Kb7 Na6 Bg2 Bc4 Bd5 Bcd3 Nf5 Bc4 g3+ Kh3 f1Q+ Kg4 g2 Kh5 Ng3+ Kh6 g1Q Kg7 Bf3 Be7 Bg2 Rf5 Bc7 B7c5 Bd5 Bb5 Qh3 Rd1 Bf3 Rd7 Qgd1 Re7 Bfd5 Qb8#
3kNq1n/2r1p2B/2N3qR/1N6/p2R2qn/BpK1Bn1R/1r1n2NQ/2N1R3 b - - 0 1 illegal: No possible last move
7r/2k1Qn1p/5r2/b1p2B1B/Np1qB1KN/1pb1N1RR/BR2rB2/2R2n2 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Kf2 Kd7 Kf3 c5 d4 b5 a4 e5 f6 Kc7 a5 Qd6 a6 Ne7 a7 Bg7 f7 Nd7 f8R Nb6 g6 Qe6 g5 Kd7 d6 Nc4 d5 Nf5 Rg8 e4+ Kg4 f3 Rh3 e3 Nc3 e2 Na4 e1B Be3 f2 Rc1 Rb8 a8B Bd4 g7 Nd2 g6 Qf6 Qe2 Rd8 Nf3 Be5 Nh4 Kc8 d7+ Kb8 d6 Re8 d8R+ Ka7 d7 Qd6 Be4 Qd5 Rb8 Qb3 d8N Qc4 Nb7 Nb3 Nd6 Qd4 Nc4 Nd2 Bg2 f1R Bf3 Bc7 Bf2 Nd6 Ne3 Nf7 Rb6 Qd7+ Bf5 Qd4+ B3e4 Re5 Rf8 Re7 g8B Re6 Rbb8 Ba5 g7 Rf6 Rb6 Rg1+ Rg3 Nf1 Rbb8 Bc3 Rb6 Ng5 Bf7 Rg2 Bh5 Nf7 g8B Rh2 Rc6 Kb7 Rb6+ Kc7 Rfb8 Ng5 Ba2 Nf7 Rg8 Rg2 Rg7 Rh2 Rh3 Rg2+ Kf4 Rh2 Rgg3 Rg2 Kg4 b3 Rd6 b4 Rd8 Qc4 Rd2 Qd4 Rb2 Rh2 Qc4 Rg2 Qe6 Rh2 Be1 Rd2 Bf2 Re2 Qe7+
1r2Q1b1/2n1NpNp/N1Rp1Q2/5B1n/pBN4N/n4Kn1/1Br4R/b2k2N1 b - - 0 1 illegal: Other
1nRq4/1b1q1QN1/b2Br2b/1BQQ1r2/2qQ1n2/2rr1QQ1/3rNK2/k1B3R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Rh3 Qd6 d3 Nc6 g4 Kd7 b4 h5 e4 f5 g5 a5 g6 a4 d4 f3 e5 f2+ Ke2 f4 g7 f3+ Ke3 a3 b6 a2 b5 Nf6 g8Q Rh6 b7 Ra3+ Bd3 f1Q b8B f2 b6 Ba6 Rg3 h3 b7 h2 Bd2 h1R Ba7 h4 b8Q h3 Qb6 h2 Nc3 Nh5 Nb5 Nb8 Rc1 c5 Nc7 a1Q Ne8 c4 e6+ Ke7 Rg2 c3 Qg3 c2 Qdg4 Qd1 Ne2 f1R Q4f4 Ra2 Bb5 Qc7 Qfg4 Rf5 Q4f3 Nf4 Kf2 Qac3 Qc6 Qd6 Bc5 Rhf6 Bb4 Bh6 Ng7 Rg6 Bc5 Kf6 e7 Rg1 e8Q h1B Qfe4 Qe6 d6 Rb2 d7 Qd6 Ra1 c1R Qb6 Rcc2 Rc1 Qe6 d5 Qa5 Qed3 Ke5 d8Q Re1 Nc3 Re3 d6 Qb4 Rg1 Bhb7 d7 Qe7 Ba4 Re6 Ne2 Qf7 Qc3+ Kd5 Qa3 Kc4 Qdc7 Qf6 d8Q Qg5 Qdd7 Qd8 Qef7 Reb3 Bde3 Qd6 Qdc6 Q6d7 Bd6+ Qc5 Qcf3 Rd3 Qa2+ Rbb3 Bb5+ Kb4 Bd4 Rcd2 Qa7 Ra3 Qad5 Rab3 Qcc6 Ka3 Qc8 Qb4 Bb2+ Ka2 Qad4 Qa4 Rc6 Qc4 Bc1 Rbc3 Qc7 Ka1 Qcb6 Bc8 Qbc5 Bcb7 Rc8
1Bn2K1b/3b4/q1b1Nb2/q2n1B2/2QQrQ1r/3R1QQb/k3N1rQ/q4RB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 Ke6 h2 Kf7 f4 e5 a4 d6 a3 e6 c2 e7 Kb3 e8Q a2 b7 f3 Qe5 h3 Be3 Qg5 d8Q Ne7 g8Q Na6 b8B Nc7 d7 Ra4 Na3 Bg7 Ne2 Rhh4 Qdf8 Bf6 d8Q Ncd5 Qg3 Rae4 Nb5 Bd7 Nc7 Nc8 Ne6 Rhg4 Bg2 f1B Bg1 Rh4 Qd2 c1R Qdf4 Rc2 Rd1 a1B Rd3+ Ka2 b4 f2 b5 Bh8 b6 Baf6 Bf3 Bg2 b7 f1Q Bg4 Rb2 Qff2 Qd2 Qgf3 Qa5 Q2g3 Qa1 Bf5 Bf1 N2f4 Rg2 Ne2 Qa6 Qh6 Qc3 Kf8 Qe1 Bc5 Qea5 Rg1 h1B Qhf4 h2 Bca7 Q6b5 Qb6 Qba6 Qd4 Rf2 Qf7 Bh3 Rf1 B1g2 Bd6 h1Q b8Q Qg1 Bdc5 Bh1 Qbe5 Rg2 Bb8 Qe3 Qh2 Qc1 Q4g3 Qa1 Qef4 Nc3 Qb4 Nd5 Bg1 Qe1 Qc3 Qa1 Qd4 Nc7 Qa7 Rb4 Qfb7 Rf2 Nc5+ Bd5 Qe6 Rg2 Qee4 Ra4 Ne6 Rd4 Qef3 B5c6 Qb5 Re4 Qd4 Nd5 Qbc4+
QKn1r1bb/RRRR1N1n/1r4Q1/3rB3/q2NBk2/b6n/1R2r1R1/2rB1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 h5 g4 c5 b4 f3 g5 c4 g6 c3 g7 f2 b6 f6 b5 h3 b7 a4 b6 h4 Bf4+ Ke7 d6+ Ke6 d7 a3 Qc2 a2 Bg2 f1Q Nd2 h2 Nh3 Rh7 Be5 Nc6 b8R Qe8 d8Q Rh6 b7 Na7 Nf3 f5+ Kf4 Nf6 g8R Bb4 e4 Ba3 Qa5 Qa4 d5+ Ke7 d6+ Ke6 d7 Nh7 Qb1 c2 d8R c1R Rd7 Re1 Rg1 h1R Rgg7 Re2 Rc7 Rh2 Rgd7 Rd2 Bh1 Rhe2 Rg4 Rd5 Rg2 Nb5 Qa6+ Nd6 Qc6 Ra6 Qd3 Rb6 Qa6 Rg6 Qa8 Rg7 Qc2 Re7 Qc6 Kf7 Ng5+ Kg6 Qc2 h3 Nf7+ Kh5 Qd3 h2 Qb1 Re8 Qd3 Qg1 Nd4 Qgd1 Qg3 Qb1 Qg8 Kh4 Qg6 Qf1+ Rf2 Kh3 Bf3 h1N Rg2 Nf2 Bh5 Re3 Bd1 Re1 Bf6 Re3 e5 Re2 Bg7 Kh4 e6 Kh3 e7 Kh4 Rb1 a1B Be5 B1b2 Ra1 Bc3 Rd8 Be6 Rdd7 Nc8 Ra2 Rf8 e8B Ba1 Nd8 Bg8 Bf7 Bc3 Be6 Re8 Nf7 Rdd6 Beb3 Rd5 Bbc2 Bcb2 Be4 Ba1 Kf3 f4 Rb2 Nd6 Rbd8 Nc8 b8R Kh3 Ra7 Kh4 Rbb7 Kh3 Rg5 Kh2 Rg3 Nh3+ Kg4 f3 Kf5 f2 Rdc7 Qg2 Rdd7 f1R+ Bf3 Rfe1 Be4 Rh1 Bdc2 Rc1 Bd1 Kg1 Rg4 Kf2 Rg5 Qh1 Rg2+ Ke3 Re7 Bd6 Ke6 Qf1 Rd7 Rdb5 Rdc7 Ba3+ Kd7 Ra5+ Rc6 Rd5+ Kc7 Rcc2 Kb8 Rc1 Bg7 Kf4 Rcc7 Rbd6 Red7 Rdc6 Rd2 Bc3 Rdb2 Rb6 Nb3 Bf6 Nd4 Be5 Bf8 Bh8 Bg7 N7g5 Bf6 Nh7 Be5+
1nkNK1R1/R1N1R2q/brr3Bb/q2r2B1/1q4N1/rnr5/QB3R1R/1b1B4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Kc7 g6 a3 d6+ Kb7 b6 h2 d7 c3 b5 c2 g7 h4 e7 a2 e8B h3 d5 Ra4 d6 Rh5 Qe2 Qh4 d8B Ne7 g8R Nec6 d7 Ra3+ Nc3 Bh6 Bb2 c1R Bg6 Na5 Bg5 Nb3 Nd5 Rc6 Nc7 Qe1 Qg2 Qb4 Re1 a1R Re7 Rac1 Be2 R1c4 Bd1 Rc3+ Kf2 f3 Kg3 f4+ Kg4 f2 Kf5 f1B Nf3 Qa5 Ne5 f3 Ng4 f2 Qd5 Bc4 Qd2 Be6+ Kf6 Bf5+ Kf7 f1Q Ke8 Qc4 Rf8 Bd3 Rf2 Bb1 Qd5 Qcb4 Qd2 Na6 d8N+ Kb8 b7 Rb6 Rhe1 h1R R1e2 h2 Qd5 Rg1 Qe6 h1Q Rd2 Nd4 Qa2 Nb3 Rh2 Re1 Rdg2 Ree6 Rf2 Ka7 b8R Rec6 Bd2 Rd5 Bg5 Bb7 Rc8 Nac5 Rb8 Ba6 Rc8 Nd7 Rb8 Rb7 Ra8+ Kb6 Ra7 Nb8 Bh5 Qhe4 Bf7 Qh7 Bg6 Kc5 b6 Kd6 Na8 Rbc7 b7 Rb6 Rg7 R7c5 Nc7 Rcc6 Re7 Qc4 Na8 Nd7 Rg7 Qcb4 Rg8 Nc1 b8R Nb3 Rbb7 Nb8 Rbg7 Nc1 Kf7 Nb3 Nc7 Kd7 Rh1 Na1 Rhh2 Kc8 Ke8 Nb3 Re7
NQ1K3R/4RBqq/1nB1N2r/3N1B2/bRr4q/2b1B1q1/1qNN2k1/1nq1q3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 h5 b4 a5 g4 f3 b6 h3 b5 f2 b7 a4 g5 f6 g6 h4 b6 a3 g7 a2 Be3 c4 Nc3 h2 Bh3 f1Q Nf3 Qc7 Nd2 Qe1 Bf5 h3 Qb1 Nd7 b8R Qg3 b7 Ne7 g8B Rh6 Bf7 Ra4 Qb2 Bg7 Rae1 a1Q Qb3 Qb6 Qb2 Kc7 d6+ Kc6 Nd5 c3 Qb3 c2 Qb1 Ne5 d7 c1Q d8N+ Kd6 Qb5 Bd7 Nc6 Nf3 Ncb4 Nc8 Nc2 Rc4 Qb1 Qba7 Qb2 Nb6 Rh8 Q1a5 b8N Qaa1 Na6 Ba4 Nac7 Qab1 Rhf1 h1Q Na8 h2 Qb5 Qbb2 Qe8 Qhg2 Qb8+ Kc6 Rg1 Q2f2 Rg2 Qh4+ Rg4 h1Q Ndb4+ Kb5 Bc8 Rc3 Kf5 Qhg2 Bg5 Qgg1 Ke6 Qa2+ d5 Kc5 e4 Qca3 Nb1 Nd2 e5 Qd4 Re3 Qgg3 Bh5 Qd3 Be8 Qh7 Bc6 Qa1 d6 Qe1 d7 f5+ Ke7 f4 e6 f3 Bb5 Q1b2 Nd5 Qc7 Rb4 Rc4 Re2 Qec1 Ke8 f2 d8N f1Q e7 Qag3 Bf5 Qfe1 Bc6 Bf6 Re4 Bc3 Be3+ Kd6 Rg4 Ke5 Rg7 Nb3 Ne6 Nd2 Bg4 Ke4 Bf5+ Kf3 Rf7 Qa7 Kd8 Kg2 Rg7 Rf6 e8B Qb7 Beg6 Qf7 Bh5 Qfg6 Rc7 Qgg7 Bf7 Rh6+ Re7 Bd4 Nbc3 Nb1 Ne4 Bc3 Nd2
r2Nbrnr/1B6/q1Q2nQR/Q3q3/2QNQkqr/1QBr4/2r4R/4bB1K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 a5 Kg2 f5 d4+ Kd6 g5 c5 b6 h5 g6 a4 e5+ Ke7 b7 c4 d6+ Ke6 g7 a3 d5+ Kf7 b5 Kg6 d7 Kg5 b6 c3 d6 a2 e6 c2 Bb2 c1R e7 Rc2+ Nd2 f3+ Kh2 f2 e8Q f4 Qf3 h3 Nc4 h4 Qee4 Qf6 d8Q Nd7 Qc7 Qf5 b8Q Qg4 b7 Ndf6 d7 Bb4 d8Q Bd7 Ne2 Be1 Nd4 Be8 Qb3 f3 Nd6 Bg6 Rc1 a1Q Qcc6 Be8 Qbc7 Qa6 Qg6+ Kf4 b8Q Qb5 Bc3 Qe5 Be2 f1R Q8b4 f2 Nf7 Rg1 Qcc8 f1Q Qda5 Rg3 Nd8 Rd3 Q8b7 Qff3 Qcc4 Qc6 Qbc7 Qa6 Q7c6 Ne7 Rd1 Rf8 Rd2 Neg8 Bf1 Ra7 Rg1 Ra8 Kh1 h2 Q4a4 Qh3 Rg5 Qg4 Rh5 Bg3 Kg2 h1R Rh6 Rh2+ Kg1 h3 Rg2 Ne7 g8B Be1 Bd5 Neg8 Rg3 Rhe2 Bdg2 h2+ Kh1 Ree3 Be4 Rf3 Rg2 Rh3 Rd2 Rh4 Qa1 Qc5 Q6d5 Rdh3 Rh5 Ra2 Qab1 Qc7 Qe6 Qe5 Bb7 Rb2 Rh7 Rh6 Qec6 Rg3 Qbd3 Rc2 Qe2 Rd3 Rh8 Bg3 Kg2 h1R Rh7 R1h5 Rh8 Bh4+ Kh1 Rh7 Qeg2 R5h6 Qgd5 Be1+ Rh2 Rh4 Qg2 Rg7 Rh6 Rh7 Qgd5 Rh8 Qde4+
b1Q5/BBqQ2Q1/nbn2bKb/Q3bQ2/b1qB3k/nNr1Q3/8/R2R1N1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kf6 e4 Kg5 b4 a5 b6 c5 b5 f5 b7 g3+ Kf3 c4 b6 c3 d6 a4 d7 a3 e5 c2 d5 a2 d6 g2 e6 Be7 Qd3 Qc7 d8Q Ra3 d7 Na6 Be3 c1B Ne2 g1B b8Q Bb7+ Qe4 g6 Qbc8 Ba8 b7 Bf6 b8B Ne7 h4+ Kh5 Nd2 g5 Bh3 Bh2 Rb1 a1N Ba7 Nc2 Bg2 Bg3 Nd4 g4+ Ke2 Bh2 Rd1 g3 Kf3 Rb3 Bh1 g2 Ra1 g1B Qd5 Na3 Qe8+ Kh6 h5 Kg5 h6 Rd3 h7 Rb3 Qed8 Kh5 Kg2 f3+ Kh3 f2 Be4 Rd3 N4b3 f1B+ Bg2 Bf2 Qe4 f4 Qf5+ Kh6 Kg4 Bfg1 Bec5 f3 Bcb6 f2 Bb7 Nc6 e7 Re3 e8Q Bb5 Qde7 f1Q Qb4 Bg3 d8Q Ba4 Qdd7 Rc3 Qba5 Qc4+ Qee4 Bge5 Nf1 Bcf4 Bc5 Bgd4 Qe3 B4g5 Qfe6 Bgf4 Kf5 Kh5 Bcb6 Rg8 h8Q+ Bh6 Bc5 Rg1 Qhg7 Rh1 Bcb6 Kh4 Kg6 Qb5 Qf5 Qd3 Bc5 Qc4 Be7 Bb6 Bc5 Qb5 Bd4 Qb4 Qdd5 Qc4 Qdd7
2Nk1n2/2RBq2n/KN2R2b/BQrRb3/2R1bR2/n1b2NQ1/2R5/1r3rbn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 g5 h4 f5 e4 c5 Ke2 a5 Kd3 a4 Kc4 g3 d4 a3 e5 g2 d6 g4 h5 f3 d7+ Ke7 e6 a2 d5 g3 d6+ Kf6 e7 f4 e8R f2 h6 f3 h7 Qa5 d8N Be6+ Qd5 Bh3 d7 Bg7 b6 Qa7 Kb5 c4 b7 c3 Na3 c2 Bd2 c1B Nf7 Bf5 d8R Be4 Nc4 Nd7 b8Q Nf8 Rh4 Qe7 Nfd6 Ra5+ Kb6 Bh6 b5 Bb2 Rc1 a1N Nc8 Bc3 Rc2 Be5 Be2 f1N Qc7 f2 Nf3 g1B Rf4+ Bf5 Qdb7 g2 Rd5 Ng3 Qbb8 f1R+ Qc5 Ra4 Ba5 Rb4 Ka6 Nh1 b6 Rbb1 b7 Bgd4 Qb5 g1B N4b6 Bc3 Qc7 Ke6 b8R Be4 Rb7 Nf6 Bd3 Rg8 h8R Rg5 Qd6+ Kf7 Rc7 Rf5 Bc4 N6h7 Qa3 Kf6 Bb3 Ke6 Ba4 Rg5 Rg8 Rf5 Rgg2 Rg5 Rc1 Nc2 Qab3 Na3 Rgc2 Bb2 R2c4 Bbc3 Rc2 Rf5 Red8 Kf6 R8d6+ Kf7 Rdc6 Ke8 Rcd6+ Qd7 Re6+ Kd8 Q5b4 Qd6 Bd7 Qe7 Qb5 Bd6 Rd1 Rc5 Rdd2 Bde5 Rd5 Bcd4 Qe3 Bb2 Qe1 Bbc3 Qg3
6RB/1B3r2/1q2R2b/1R1N1rrb/1R1Brn2/BQ1r4/q1nqr1N1/2N2kBK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kc5 d4+ Kc4 b4 h5 g5 f5 g6 c5 g7 a5 d6 h3+ Kh2 a4 b6 h4 b7 a3 b5 a2 d5 f3 b6 f2 d7 f4 d6 f3 Bf4 Nf6 g8R Na6 b8N Rh5 b7 Nd5 Nc3 Rg5 Bc1 Nf4 Nd5 Nb4 Bg2 f1R e4 f2 e5 Ra4 e6 Nc2 e7 Bh6 e8R Qb6 d8B Bg4 d7 Bh5 Rb1 a1Q Bf6 Qa2 d8B Ra3 Nc6 Rd3 b8B Re1 Bfb2 f1R Nf3 Re4 Bbf6 Rfe1 Bfe5 R1e2 Ba3 Rf5 Bd4 Rf7 Kg1 h2+ Kf1 h3 Ncb4 Rf5 Ba7 Rf7 Rg1 h1R Nh4 h2 Bh8 Rf5 Bdf6 Rg5 Re5 Kd4 Bf3 c4 Ng2 c3 Rg6 Ne1 Rg8 c2 Re6+ Kc4 Bfb2 c1Q Bbd4 Qcd2 Rb8 Nc2 Rb2 Rb3 Nd3 Rc3 Nc1 Rd3 Rb3 Nh3 Rg8 Ne1 Bb8 Rh4 Bf4 Rc3 Nf6 Ree5 Ne2 Kd3 Bb7 Rc5 Bd6 Re4 Nh4 Rb5 Qb1+ Nc2 Bc7 Rbd5 Rb5 Rd7 Bg3 Rf7 Kg2 Rb3 Re1 Rf1 Nd5 h1R Qb2 R1f4 Rb1 Re1 Kh2 R4f6 Ng2 Rff5 Bgf2 Nf4 Bg1 Rc3 Qb4 Rb3 Qa4 Rc3 R1b4 Rb3 Nec3 R1e3 Kh1 Re1 Nd1 Ke2 Nb2 Kf1 Nd3 R1e2 Nc1 Rd3 Qb3
4N3/3R1qq1/NB1NB1q1/K1N4r/2B2q1r/BR1Q3B/2k2qbn/2bqnR1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 a5+ Ka4 f5 e4 c5 b4 c4 g4 c3 g5 h3 b6 h2 b5 h4 b7 h3 g6 c2 g7 f3 b6 f2 Qe2 f4 Ra3 f3 Nc3 Nh6 g8B Qf6 Rb3 Nd7 b8N Bb7 Qd3 Ne5 Be6 Qg6 Na6 Nhg4 Nge2 Rh5 Nc7 Bh6 Nf4 Rh8 Bg2 Ba8 b7 f1Q b8N f2 Nba6 Nf3 Bb2 Qe1 Rf1 h1Q Kb5 h2 Bh3 a4 Ka5 c1Q e5+ Ke7 Ne8 a3 Bg8 a2 d6+ Kd7 d5 a1Q+ Ba3 Rh4 Ne6 Qf4 Bf7 Qg1 Bg8 Qed1 Ne4 h1N Bf7 Ne1 Ne6c5+ Kc8 e6 Nh2 Bg8 Qag7 d7+ Kd8 Bf7 Ke7 d8R Bg5 N4d6 R8h5 Nec7 Kf6 e7 Ke5 e8B Bh6 Bfe6 Qff7 Bc6 Bc1 Nce8 Qg1g4 Bb5 Qgf4 Bc4 Bc6 Rg1 f1Q Rd7 Q1f2 Rf1 Ba8 Nf5 Bb7 d6 Bg2 Rdb7 Rh7 d7 R7h6 Nfd6 R6h5 Qe2+ Kd4 d8B Q7f5 Rd7 Qff7 Rb5 Kc3 Bb6 Rh8 Qe4 R8h5 Rb3+ Kd2 Qd5+ Kc2 Qd3+
n2kr3/1n4BB/nNbn3R/3bBN1b/Q1R3r1/bKnR1Bq1/4Nr2/N6N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 h5 g4 c4 b4 f3 d6 f2 d5 f4 g5 a4 d7+ Ke7 g6 a3 g7 f3 e5 a2 b6 h3 b7 h2 e6 h4 b5 h3 b6 Nh6 g8B Nf5 Nd2 Qc7 d8N Qg3 Be2 f1R Ne4 f2+ Bf3 Na6 b8N Rh4 b7 Nd6 Nd7 Rg4 b8B Bb7 Qd4 Bc6 Nb7 Ke8 Nbc5 Kd8 Kc2 c3 Kb3 c2 Bh7 Be7 Bh6 c1N+ Ka3 Bf8 Nb6 Ne2 Rc1 a1N Rc4 Nc3 Bg7 Nb3 Ne2 Na5 Nb3 Nab7 Na1 Be8 Qd1 Bh5 Qa4 Be7 Kb3 Bf8 Rg1 h1B Rg2 h2 Rg1 Ne8 d6 Nec7 d7 Bg2 Rh1 Ba3 Ba7 Rc8 Bb8 Na8 Bf4 Rc1 Bd6 f1N Nf2 Rc2 Bf4 Ne3 Bfe5 Ke7 d8R Nf5 Rd3 Re8 Rb1 Nfd6 Nh1 Kd8 Rc1 Rg6 Rh4 Rg4 e7+ Kc7 Nd4 Rf2 Ne2 Rh8 e8N+ Kd8 Nc7 Re8 Nb5 Ne4 Rc4 Nc3 Bc6 Be4 Nbd4 Bd5 Nf5 Rf3 Nf2 h1B Rh3 Bg2 Nh1 Rf2 Rh4 Bhf7 Rh6 Bh5 Bd7 Bc6 Be6 Bgd5 Bc8 Bdf7 Be6 Bg8 Bd5 Bgf7 Be4 Bfd5 Bf3
n1bR4/R1bB4/b2BNqkb/5Qq1/N1Rr1B2/2q1N1r1/q1n2R1N/1R3b1K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 e4 c5 b4 f5 g4 Kf7 Kg2 h5 d4 a4 g5 h3+ Kh2 a3 e5 c4 e6+ Kg6 b6 a2 e7 f3 e8N f4 b7 h4 d6 f2 b5 c3 b6 f3 d7 c2 d5 Bd6+ Bf4 c1B Nc3 Ra4 Nf6 Nh6 Qc2+ Nf5 Ng4 Qf6 d8N Rg8 Ne3 Na6 b8B Nc7 b7 Rd4 Ne6 Na8 Na4 Bc7 Bb5 f1B d6 f2 Bd7 Ba6 Nf3 f1B Rg1 Bd2 Kh1 h2 Rg4 Bc1 Rb1 a1Q Rg2 Qa2 Rf2 Re4 Rb4 Nd4 Rc4 Bd2 Qd3 Nc2 Qd5 Rd4 Qf5+ Kh5 g6+ Qg5 g7 Kh6 Qc5 Kg6 Bc6 Bc1 d7 Bd2 d8R Qf6 Nd1 Bc1 Bd6 Bh6 Ne3 Kh7 Bf4 Bb6 Rd2 Na3 Bbd6 Ba5 b8R Nc2 Rd7 Bb6 Ra7 Bc7 Rbb7 Be2 Kg2 Bf1+ Kf2 h3 Ng4 h1Q Kg3 Qg1+ Rg2 h2 Bd7 h1Q Ne3 Be2 Nh2 Bd3 Kh3 Be2 Rf2 Qgg6 Qf5 Qe1 Rb1 Qc3 Ng4 Bf1+ Kh2 Re8 g8R Re7 Qd5 Rg7 Kh1 Qgf5 Nh2 Rg3 Rh8+ Kg6 Rd8 Q5g5 Qf5+
K1Q5/1N2QQR1/bq1nnRr1/q4QB1/1k5n/q2q4/1B1b2b1/N2BQQrb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 a5 g6 a4 g7 a3 b6 h3 d6 h2 d7 a2 b5 f3 d5 f2 d6 f6 b7 h4 b6 h3 Nd2+ Kc3 Kd5 c4 e4 f5 e5 f4 e6 f3 e7 Ra3 e8Q Nh6 g8Q Ra6 Qgf7 Nf5 Ne2+ Kb4 Ne4 c3 Nd4 c2 Rg1 h1B Nc5 h2 Bb2 c1Q Rg7 Bg2 Be2 f1Q Ndb3 Nc6 b8Q h1B b7 Qb6 d8B Nh4 d7 Nd4 Qbf4 Rg8 Q4f5 Ne6 b8Q f2+ Bf3 Bd6 Bg5 Bf4 d8Q Bd2 Qde7 Qfb5 Rb1 f1N Na1 Ng3 Qf1 Ne4 Bd1 Qc3 Qg3 Q5a5 Qge1 Qe3 Rc1 Qh3 Rc3 Nd6+ Rf3 Qa3 Nb7 Qg3 Nb3 a1Q Q8d8 Bd7 Qc8 Bb5 Q5g6 Qaa5 Qgf5 Q1a3 Na1 Ra7 Rh7 Rg6 Rg7 Ba6+ Nc5 Qb8 Kc6 Rd7 Nb7 Rd8 Qd5 Rg8 Rf6 Qgd3 Qdf3 Qe5 Kb6 Qc7+ Ka7 Qb6+ Kb8 Qea5 Qf5 Bc6 Rh7 R6g7 Be3 Rg1 Bg5 Bcg2 Ka8 Rg6 Rg7
2N1K3/Bn2Qn1Q/3r1brq/RR3N1r/r1R1Rq2/1b1q1R2/2Rq2b1/kB4Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 Ke6 h2 Kf7 f4 e5 a4 d6 a3 e6 c2 e7 Kb3 e8R h3 b7 a2 Bd3 f1R Nf3 Ra4 Be3 Rh5 Nh4 f3 Nd2+ Kb4 Ne4 Kb3 Nf5 f2 Ba7 Na6 b8R+ Bb7 Qg4 c1Q Rc8 Nc5 Bb1 Qd2 Qg1 Rd1 Re7 Qc7 d8Q f1Q d7 Bd5+ Ke8 Qfd3 Ned6 Nh6 g8Q Nf7 Qh7 Nb7 Re4 Bg7 Qe7 Bf6 d8R Qcc1 Rcc4 Qf4 Rcd4 Qcd2 Nc8 Ra6 Rc4 Rd6 Qf2 Rg1 Rd7 Rg2 Rf1 h1B Qg1 h2 Rdc7 Rg6 Rf3 Bg2 Rc2 h1Q R7c6 Bc4 Rc5 Ka4 b4 Ka3 b5 Bb3 R2c4 Kb2 b6 Na5 b7 Qhh2 b8R Nb7 Rb5 Qh6 Bc2 Qh2f4 Rc1 a1R Bb1 Raa6 R1c2+ Ka1 Rd5 Ra4 Ra5 Nbd8 Rb6 Nb7 Rbb5
1R1B1kRb/3q3R/1NbR1r1n/Nn2q3/K6R/1R4rb/1qqQnn1Q/1Q1B4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 Kb3 h5 g4 h3 e4 c4+ Ka4 h2 b4 c3 e5 c2 g5 h4 g6 h3 d6 f3 d7+ Ke7 d5 f2 g7 f4 b6 f3 b7 Qc7 d8R Na6 b8Q Qd7+ b5 Nc7 e6 Nh6 g8R Ra6 Na3 Bg7 Be2 f1Q Nc4 f2 Nf3 Qe1 Ra3 f1Q Nb6 Qff2 Bg5+ Bf6 Nd2 c1N Bf3 Qe5 Ndc4 Qc2+ Rb3 Ne2 Qb1 Rh7 Rh8 Rg7 Rh7 Qeb2 Rg8 Qe5 Rd1 h1B Rd4 h2 Rh4 Bg2 Bh5 h1N Rd8 Ng1 Bd1 Nf2 Rg8 Ne2 Rd8 Qe8 d6+ Kf8 d7 Bc6 e7+ Kf7 Ka3 a4 Na5 Kg8 Kb4 a3 Ka4 a2 Bf4 Rg2 Bg5 Bh8 Bf6 Qf8 e8R Rg3 Re6 Qe8 Rd6 Kf8 Bg5 B8b7 Rc8 Bg2 d8Q Bh3 Qd7 Bbg2 Bd8 a1Q+ Qa2 Qab2 Qb1 Ne6 Qbc7 N6d4 Rb8 Qd3 Qcc2 Q8e6 Qd2 Ba8 Qc7 Qdc2 Rb7 Rg6 Nc8 Qc6 Rd5 Qh5 Qh2 Rg3 Rbg7 Qcc2 b6 Qhe5 b7 Nb5 b8R Qd7 Rg6 Rd6 Nb6 Rf6 Rd6 Bc6 Rg8+
2QqR3/q1n1n2N/1kNB1rb1/1Bb5/3NQN1Q/Nb2nq2/5R1K/r2qb1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 h5 Kg2 f5 b4 a5 e4 c5 d4 Kc7 b6+ Kb7 g5 c4 b5 f3+ Kh2 h3 e5 a4 g6 h4 g7 f2 d6 a3 d5 c3 e6 c2 e7 f4 e8Q f3 d7 a2 d6 Na6 Qde2 Rh6 Bf4 c1B Na3 Ne7 g8N Bd2 Re1 a1Q Nf6 Nc7 Nh7 Rf6 Qd3 Qa2 Re5 Be1 Qe4+ Nc6 Be2 f1B Qh5 f2 Re8 Be7 Bc4 Bd3 Qg5 Kb8 b7 Ka7 b8N Kb6 Qg8 Bf8 Qh8 Ne7 Nc6 Bb7 Nd4 Bd5 Qg8 Bb1 Be2 Bb3 Qg5 Qc8 d8Q Ra5 Qd7 Qd8 Qc8 Ra4 d7 Ra8 Qf3 Bg6 Bd6 Qa1 Qe4 Qd1 Bc4 Ra6 Nac2 Ra1 Na3 Qf3 Nge2 Qe3 Rf1 Qf3 Ng1 Qd1 Kh1 h2 Kg2 h3+ Kg3 h1Q Qgh4 Qhf3+ Kh2 Ka5 b6 Qe3 b7 Kb6 b8N Qef3 Qe5 Qa8 Ba6 Qa7 Nbc6 Qf3 Bb5 Qd1 Kg3 h2 Qf5 h1Q Qfe4 Qhf3+ Kh2 Qa8 Nb4 Qa7 Nd3 Ng8 Nf4 Be7 Be5 Bc5 Bd6 Ne7 Qca8 Qdb8 d8N Qc8 N8c6 Qd8 Qb8+ Qb7 Qc8 Qa7 Ngh3 Qb7 Rg1 Qa7 Rg2 f1N+ Kh1 Ned5 Ng1 Nfe3 Kh2 Ne7 Rf2
KR1n1R1r/2Q1B1R1/b2Q2Bn/1bBr1N2/3B2bq/1qb3N1/q2kr3/B3Br2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 a5 g6 a4 g7 a3 b6 h3 d6 h2 d7 a2 b5 f3 d5 f2 d6 f6 b7 h4 b6 h3 Nd2+ Kc3 Kd5 c4 e4 f5 e5 f4 e6 f3 e7 Qe8 d8B Nh6 g8R Nf5 d7 Nd4 Ne4+ Kb4 Bb2 c3 Rg7 c2 Nd6 c1R Rb1 a1R Nf5 R1a2 Ne2 Nbc6 b8B Qf7+ Kd6 Qc4 Kc7 R8a5 e8Q Rd5 b7 Qb3 Bf6 Nd8+ Kb6 Bd6 Neg3 Be5 Bd3 f1B Ba7 f2 Ba1 Re2 b8B Ba6 Rg1 h1Q Qf7 h2 Rg8 Qe4 Rf8 h1Q Qh7 Qeh4 Bd6+ Rdc5 Bc2 Bh3 Rg2 f1B Bde7 Nf3 Qd6 Bc3 Bd4 Ne5 Qg7 Bg4 Qf7 Ne6 d8B Q1h2 Bc7 Bb5 Kb7 Nd8+ Ka8 Rd1 Qh7 Nef7 Bcb6 Nh6 Be4 Kc4 Qg7 Rd5 Bbc5 Qa2 Qge5 Q2h3 Qc7 Ba6 Qed6 Rde1 Rb8 Rb1 Bf3 Kd3 Be4+ Kd2 Bf2 Rbe1 Bcd4 Rc1 Bac5 Rb1 Nh5 Qd3 Nhg3 Qb5 Bc2 Qbb3 Ng7 Re6 N3h5 Bf3 Bh7 Bfc4 Nf5 Re2 Rg7 Bcb5 Nhg3 Rf1 Bg6 Bg4 Be1+
6QN/1n1rn1BB/2r2RR1/RrnbK1NN/4Bn2/B1kbb3/6BR/1qq3b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 f5+ Ke5 a5 e4 c5 d6 h5 b3 h3 d7 a4 d5 c4 b6 f3 d6 a3 b7 c3 g5 a2 g6 f2 g7 f4 Bd2 h2 Bg2 f1Q Nf3 h4 Ng5 h3 Bc1 c2 Nd2 f3 Ba3+ Kc3 b4 c1B b5 f2 b6 Na6 b8R Rh5 b7 Nc5 Qg4 Qb6 d8B Ne7 g8B Ra7 d7 Qb1 Bh7 Bh6 Rg1 h1N Ra8 h2 b8R Rc7 Rb2 Bb7 Ra6 Ng3 Rf6 h1R Qe6 Bd5 Qg8 Qc4 Nf1 Ne2 Ng3 Rc6 Bc7 f1B d8N Be3 Nf7 Nf4 Nh8 Nb7 Bcd6 Nf5 Bf8 Bd3 Bg7 Ne7 Re2 R5h3 Nh5 R3h2 Rf1 Bg1 Rg6 Qc5 Rff2 Qe3 Rf3 Qec1 Ref2 Rh4 Rh3 Rg4 Rh2 Rg3 Rf1 Re3 Rf3 Re2 Rf2 Rb2 Rf1 Rb5 Rf3 Nh3 Rff6 Nf4 Ngf7 Bb3+ Bc5 Ne2 Ng5 Bf2 Qb8 Bdc2 Nh3 Nd5 Qg8 Rd1 Kf5 Bhe3 Ng5 Bg1 Bd6 Rd3 e5 Nef4 e6 Rd4+ Ke5 Bd3 e7 Bbc4 e8B Ne7+ Bc5 Bf7 Rh6 Rd7 Bhe4 Bfc4 B8g6 Bd5 Bh7 Qb4 Rb1 a1N Rhg6 Qbb2 Bd6 Nb3 Ra1 Qcb1 Ra6 Q2c1 Ba3 N3c5 Ra5
B4rNB/r2r3r/N3nBK1/nnr4R/Q1b2bR1/k4nR1/1qr1B2R/6RN b - - 0 1 illegal: No possible last move
6q1/2NbB3/1KQ1q3/R4r1R/Bb1r2rN/n1bq1nB1/NR2pN2/nR2k1N1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 b4 c5 d4 a5 g4 e3 f4 e4 b6 a4 Kb5 h3 b7 c4 g5 h2 g6 e2 f5 e1B g7 h4 f6 c3 f7 a3 Bc4 a2 Qd2 c2 Qe2 h3 Qf3 e3 Bb3 e2 Ba4 Na6 b8R Rh5 Nc3 Ne7 g8N Nc7+ Kb6 Bd7 b5 Rf5 Nh6 Nc6 Ng4 Ne5 Bf4 c1R Bg3 Rd1 Nf2 Bd2 Rb1 a1N Na2 Bc3 Rb7 Qf6 Ra7 Qe6 Ra5 Be7 Rb2 Rg8 f8N Rg4 Ng6 Rd3 Nh4 Qg8 Ka7 Rd2 b6 Nb5+ Ka6 Na3 b7 Rd3 b8R Rd2 Qe4 Qe6 Ngf3 Bf8 Rhb1 h1Q Ng1 h2 R8b5 Qf3 Kb6 h1Q Qc2 Qhg2 Qc1 Ke7+ d6+ Kf6 d5 Kg5 Qc2 Qd3 Qc1 Bc6 d7 Bfb4 d8N Bd7+ d6 Qgd5 Qc2 Nf3 Qc1 Qg8 Ne6+ Kh5 Nc7 Qde6 Bf4 Bg7 Qc6 Bgc3 Bh6 Rd1 Bf8 Kg5 Be7+ Kf4 Rd5 Kg3 Rdc5 Be8 d7 Rd2 d8B Bd7 Re5 Rd1 Bd6 Rd2 B8e7 Rd1 Ng6 Kg2 Nh4+ Kf1 Rec5 Ke1 Bg3 Qde4 Nc1 Rd4 Rcb5 Qd3 Rd5 Rf8 Rh5 Rf5 Na2+
3BR3/3bb1K1/1R3r1Q/2qRn1nN/BRB5/1rnrQRp1/k2Nn3/1R1n1b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 c3 b6 c2 h7 g2 Be2 g4 Kf4 f2 Qe1 f1N Rh3 a3 Nd2 a2 Rf3 g3 Nh3 g1N Bc4 Be7 Rb1 a1R Qe3 Nf6 Kg5 f4 Kg6 R1a3 Kg7 Rf8 h8Q Rb3 Qh6 Nc6 b8R Ne5 b7 Qb6 Bb2 c1N Ba3+ Kc7 d6+ Kc6 d7 Qc5 d8R Na2 Re8 Bd7 d5+ Kb6 d6 Ka5 Bb4+ Ka4 Ba5 Ka3 Bd8 Rd3 Rb4 Nh7 Rb1 Rf6 Rb4 Nc6 e5 Ng5 e6 Ne2 Rb1 Ne5 Rb4 Bc6 d7 Nac3 Rb6 Ra6 Rb4 Rb6 Rb1 Bd6 e7 Rb3 Rf8 Re6 e8B Be7 Rf6 Red6 Ra8+ Ba4 b8R Ka2 Rb4 Ra6 Rab8 Bb5 Rf8 Rf6 Rb6 Bc6 Bc7 Bb5 d8R Bc6 Rd5 Bd7 Qg1 Ne3 Bd8 Ned1 Qe3 Bg4 Ba4 Bd7 Rf1 f3 Re8 f2 Nf4 Qb5 Nh5 Qc5 Rg1 f1B Rh1 Bfh3 Rf1 Bg2 Rf4 Bf1 Rf3
5Brb/Nbn2k1r/4BnN1/1b2K1RB/3QQ3/NBp5/1r3qB1/R2nB1rr b - - 0 1 illegal: No possible last move, all moves rejected
nr4Nk/NR2B3/1brN1Q2/2r3NR/BqB1npRN/b7/3Bn3/1b3nnK b - - 0 1 illegal: No possible last move
2b1K3/nrq1brNN/4RQ2/r1kN2BN/6Q1/6rq/1n1Np1RR/qr3N1B b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 h5 Kg6 e5 Kf7 a5 f4 h3 g4 h4 b4 c4 d4 e3 g5 c3 g6 e4 g7 e2 b6 e1Q b5 a4 b7 h2 b6 a3 f5 e3 f6 c2 Nf3 h3 Ra2 Ra5 Bg2 Na6 b8R Qf2 b7 Ne7 g8N Qc7 Ke8 Qe1 f7 Qcc3 Nf6 Rh7 Nh5 Bh6 f8N Rg7 Nh7 Qh4 Rg1 h1Q Nh2 Rf7 Qg4 Bf8 Rb2 Qhe1 Nf1 h2 Ra8 Nc5 b8N a2 Na6 a1R Nb4 Nc6 Ra6 Na4 Ra2 Kc7 d6+ Kb7 d5 Be7 d7 Na7 Bd2 c1R Re6 Qc7 d6+ Rc6 Rg6 Kb6 d8N Rc1 Bb7 Rb5 d7+ Kc5 Bc6 Rb7 Ne6+ Kb6 Rc2 Nb2 Neg7 Ra5 Re6 Qf3 Rg3 h1R Rh3 Qed1 Rh2 Qh3 Be4+ Kb5 Bd5 Rg1 Bh1 Rg3 d8Q Bf6 Qdd4 Be7 Nd5 Qe1 Qf6 Rd1 Bc3 Kc5 Rcg2 e2 Bd2 Rc1 Bg5 Qd1 Nbd2 Rca1 Re3 Qa4+ Qd7 Rb1 Re4 Qa3 Qg4 Qa1 Re6
RN4BN/RK2N2N/1RB1n2r/b1rqpr1r/1Q2b2b/2B3k1/2BN4/1nr3q1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 a5 Kd5 e5 b4 h5 f4 d3 c4 h3 g4 d2 g5+ Ke7 g6 Kf6 b6 h2 b7 a4 b5 a3 g7 a2 c5 h4 b6 h3 c6 Na6 b8R Rh6 b7 Nc5 c7 Ra5 Bg2 Be7 Qb3 d1Q+ Nd2 Ne6+ Qb5 d6 Kc6 d5 Ngf3 d4 Ng5 d3 Bb2 Qg1 Qb4 Rc5+ Kb6 Qd7 Bc3 Qd5 Ra8 Bd8 b8N Ne7 g8B Bb7 Rb1 a1B Nf7 Bb2 Ka7 Ba3 c8B Ba5 Nh8 Bc6 Nf3 d2 Rb3 d1R Nd2 Rc1 Bb7 Ra1 Be4 Rf1 Bc2 Bc1 Nc4 Be3 Nd2 Bf2 Rb1 Bh4 Ra1 Bb5 Bc6 Bd3 Kb7 Be4 Ra7 Qe3 Rg1 h1R Ra8 Rf2 Rgb1 h2 Rb3 Rc1 Ra2 Bb6 R2a7 h1R Rb2 Ba5 Rb3 Rh5 Rb1 Kg7 f6+ Kh6 f5 Kg5 f7 Kg4 f8N Kg3 f6 Rff5 f7 Qg1 Nh7 Rh6 f8N Qd6 Rb3 Nd5 Bb2+ Nc3 Qa4 Bg5 Nfg6 Qd5 Ne7 R1h5 Rb6 Nb1 Bc3 Bh4 Qb4
1Rb1B3/RRRb1nN1/qrQBb1p1/b2q3N/q5B1/Nr4k1/3R4/1nb1N1K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 h4 f5 h5 a5 d6 c5 d3 a4 h6 c4 h7 a3 b6 c3 d7 f3 b7 c2 b5 a2 b6 f4 Bg2 Nh6 Bh3 Ra6 Ba3 c1B Qa4 Nc6 b8R Na5 b7 Nb3 Qc6 g3+ Kf1 f2 Bg4 Qg5 d8N Nf7 Ne6 Rb6 Bc5 Bd6 Na3 Bc7 Kg2 Re8 h8N Nd2 Rh7 f1B+ Kh1 f3 d4+ Kf6 d5 Ke5 d6 g2+ Kh2 f2 d7 Nb1 d8R Bc4 Rd2 f1B Bf8 Bb5 Bb4 Bfc4 Nf3+ Kf6+ Bd6 Qd5 Ne1 g1Q+ Kh3 Rd8 Ng6 Qgd4 Ngf4 g6 Ng7 Kg5 Kg2 Bb3 Kh2 Qa4 e5 Rg8 e6 Re8 Nfh5 Kh4 Kg1 Rh8 Nf4+ Kg3 e7 B3c4 Qc5 Bbd7 e8B Rb3 Qc6 Ba5 Rh5 Rb6 Re5 Rh3 Re7 Be6 Rc7 Bb5 Qc4 Bbd7 Qc6 Rh4 Ra8 Rh5 b8R Re5 Rbb7 Re3 Raa7 Reb3 Rb8 Nc3 Rb1 a1Q Rbb2 Nb1 Rbb7 Re3 Rb4 Rb3 Rb8 Ra6 R4b7 Rab6 Rd4 Qa2 Rd1 Qe2 Rd2 Qa6 Nfh5+
nnN3q1/2bNRpn1/6Qq/1br3Qb/Nk2r1bR/3Q2N1/2B3bN/1KB1N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 h5 g4 c5 b4 a5 e4 a4 b6 f3 g5 f2 b7 a3 e5+ Ke7 d6+ Kd7 g6 Kc6 b5+ Kb6 d5 Ka5 e6 a2 g7 h3 e7 h2 e8N h4 d7 h3 b6 c4 d6 c3 Qg4 Nf6 g8N Rh7 Ne7 Rh4 Qg6 Nh5 Nf3 Kb4 Nf6 Ng7 Na3 Ra5 Nh5 Re4 Ng3 Rc5 Bd3 Qe8 d8N Bg4 d7 f1B Nc8 Bd6 Ne6 Bc7 d8Q Qg8 Qdg5 Be2 Re1 h1B Nh2 Bg2 Rh1 Bh5 Re1 Beg4 Re3 Nc6 b8Q Bf1 Qa7 Nb8 b7 Bg2 Qa6 Bf1 Nf3 h2 Qd6 h1B Nh2 Bhg2 Re1 Nd7 b8N Nb6 Nd7 Na8 Re2 Rc4 Bf5 Re4 Re1 Ba6 Qd3 Bb5 Rb1+ Ka5 Rb4 a1N+ Kb1 Nb3 Rc4 Nd4 Nc2 Nc6 Re3 Nb8 Ne1 Rd5 Nec5 c2+ Ka1 Rde5 Na4 Rc5 Ka2 Rd4 Re7 Re4 Be3 c1Q Bf4 Qc3 Bc1 Qf6 Kb1 Qd6 Rc2 Kb4 Rf2 Bd1 Rf4 Bdf3 Rh4 Bfg4 Be6 Qf4 Bb3 Qe3 Bc2 Qd2 Qgd5 Qh6 Qdg5
1Q1QRnB1/3R2b1/QQ2r3/p2Q1nNq/3B2bR/Kn1r1nn1/n5k1/n1Q3N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 g4 c5 e4 f5 b6 c4+ Ka2 f3 b4 h3 g5 h4 b7 f2 b5 c3 b6 c2 g6 f4 g7 h2 Qe2 f3 Qb5 h3 Bb2 c1N+ Ka3 Qh4 Qb3 Nf6 g8Q Ng4 Nd2 Ra6 Rb1 Na2 Re1 Ne3 Rd1 Nd7 Qd3 Qh5 Qg5 Bg7 Qb5 Rd8 Bc4 f1N Qf4+ Ke7 b8Q f2 e5 Nf8 b7 Re6 Ne4 Nd2 Qa6 f1N Ng5 Nf3 d6+ Kd7 d5 N1d2 Bd4 Nb3 Ka4 Nc2 Qc1 Nca1 Ka3 Ke8 d7+ Ke7 Nh7 Kf7 d6 Kg6 Ng5 Kf5 Qc7 Kg4 b8Q Kg3 Qcb6 Kg2 Rd3 Rde8 d8Q R8e7 d7 Rd6 Bg8 Ree6 Qe7 Rd5 d8Q Rdd6 Bc3 Rd7 Rd1 Rd3 Qeb7 Bd7 Bd4 Bc8 Ne2 Bd7 Qd5 Bc8 Rhf1 h1N Ng1 h2 Rfe1 Ng3 Re4 h1N Rh4 Rh6 e6 Nf5 e7 Re6 e8R Nhg3 Rd2+ Re2 Qdc5 Re3 Rb2 Nh6 Bf6 Bg4 Rd2 Nhf5 Rd7 Rd3 Qd5 Re6 Bd4
2r1B1R1/K1pQnn2/Q2QQB2/1rN3r1/4q1Qb/r2Nr3/1rbrQ1R1/1k5R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kf6 e4 Ke5 Ke2 Kd4 e5 a5 d6 f5 b6 h5 e6 h3 b5 h4 d7 h2 e7 a4 e8Q h3 b7 a3 b6 a2 g5 Be7 g6 Bh4 g7 Rh6 Nc3 Re6+ Ne4 Qe7 d8Q+ Nd7 b8Q Rd6 b7 Ne5 d3 Nf7 Qdd7 f3+ Kd2 f2 Qe2 f4 Nc5 f3 Qa7 Qe6 b8Q Qe4 Qa6 Ne7 g8R Bb7 Bg2 f1R Qbc8 f2 Qe6 Re1 Qe8d7 f1R Ba3 Qe5 Bc6 Qe4 Rb1 a1R Rb2 Rab1 Rc2 Rb3 Bb2+ Rc3 Q6g4 Rf5 Qe6 Rfd5 Be8 Rg5 Qcd7 Rc8 Ba1 Rb1 Rb2 Ra3 Kc2 Ra4 Kb3 Ra3+ Kb4 Rdd5 Kb5 Kc3 d4 Rdf5 Rb4+ Rb2 d5 Rf3 d6 Re3 Nf3 Bd5 Rg1 h1R Ne1 h2 Ned3 Bb3 Rg2 Rb1 Rd4 h1R Rd5 Rg6 Rh5 Rhd1 Rhh8 Rd2 Rh6 Kc2 Rhh8 Rba2 Bf6 Rg5 Rh5 Bg3 Rh7 Rab2 Rh1 Nd5 Kc6 Bh4 Kb7 Ne7+ Ka7 Ba4 Qdc6 Rb5 d7 R1b2 d8Q Bb3 Qcd7 Ba4 Rh3 Kb1 Qdd6 Bd1 Q8d7 Bc2 Rh1+
5RRb/3nrR1q/1QKQk1N1/1r4n1/b2b2N1/2Bqr1p1/5RBR/q1R2Qb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 a5 e4 g5 b4 f5 h4 c5 b6 c4 b7 f3 Ke3 f2 e5 g3 b5 a4 e6 c3 h5 g4 d6+ Kf6 e7 f4+ Ke4 c2 Kd5 f3 e8R a3 h6 a2 d7 g2 b6 g3 h7 Qc7 d8Q+ Kf7 Nc3 Bb4 Re2 Ba5 Bd2 c1R Ne4 Bf5 Rh2 Rc2 Nf6 Ra7 Rc1 a1B Qd6 Rb2 Nh3 g1B Bg2 f1Q Ng4 f2 Bc3 Nd7 b8Q Nh6 b7 Bb6 Nf4 Bc2 Ng6 Re8 h8R Re3 Rg8 Ba4 Qd8 Bc5 b8R Rb5 Rb7 Qe1 Ra2 f1Q Qb6 Qd3 Rf2+ Qf4 Qb8 Qff5+ Kc6 Ke6 Qe2 Qh5 Qf1 Nf7 Q8d8 Ng5 Rgf8 Nf6 Rbf7 Re7 Rg8 Qh7 Qf8 Rf3 d5+ Kf5 d6 Re5 d7 Qed1 Qfb8 Re7 d8R Ke6 Be1 Nd7 Rc3 Re3 Rdf8 Q1b1 Rcc2 Bh8 Rc1 Qa1 Bc3 Bcd4 Qd6#
3NBQrr/n3qbr1/1qB1Rk1B/BQ1Rb3/R7/2n2qpB/1N6/qb2KB2 b - - 0 1 illegal: No possible last move, all moves rejected
2r2b2/1B1K3n/5r2/1BqkrR2/1B2qQb1/2pnQ1BB/bN1NRB2/qR4b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 c4 b6 c3 b5 a4 b7 f3 g5 f2 b6 f6 g6 a3 g7 a2 Bh3 f1Q Nd2 Na6 b8B+ Qc7 b7 Ra7 Ba3+ Nb4 Ngf3 Qg1 Rb1 a1B Qe1 Be6 Ne5 Ra8 Nec4+ Kd7 d6 Kc6 d7 Nd3 d8B Ra5 Rh2 Bb2 Bb4 Bc1 Nb2 Ba2 e3 Qb6 Bg3 Qc5 b8Q Rb5 Re2 f5+ Kf3 f4 Ke4 f3 Bb6 f2 Qf4 f1R d5+ Kb7 Kf5 Nf6 Ke6 Nh7 g8B Qg2 Qd1 Qe4+ Kd7 Ra5 d6 Rf2 Qg5 Rf6 Bc4 Rb5 Qg1 Ra5 Kd8 Kc6 Ba6 Rb5 Qh6 Kd5 d7 Rg8 Qf4 Rh8 Bg2 h3 Ba7 h2 Bh3 h1B Qe1 h4 Qef2 Qe5 e4+ Kd6 Qg1 Bf3 Qge3 Bg4 Bb6 Kc6 Ba7 Qed4 e5 Qe4 e6 Kd5 e7 Ra5 e8B Rb5 Bg2 h3 Bf1 h2 Bh3 h1Q Bb6 Rg8 Ba7 Rg5 Bb6 Re5 Ba7 Qcd4 Kc7 Rbb6 d8R+ Rbd6 Rb8 Rd8 Beb5 Qf1 Rb6 Ra8 Re6 Qc5+ Kd7 Rc8 Bb6 Rff5 Rg6 Qd1 Rg5 Rf6+ Rf5 Qa4 Nf3 Bd2 Ba7 Be1 Nd2 Bf2 Qh6 Bg1 Qef4 Qcc4 Baf2 Qc5 Qhg5 Bb3 Qe3 Qa1 Qgf4 Ba2 Bb7+
1q3N2/b1R1RR2/2nN2b1/rNR1rN2/1B2N3/qBp1KbBQ/4b3/1qrkn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 d4+ Ke4 b6 f5 d6 a5 d5 c5 b5 h5 g5 f3 g6 c4 b7 h3 g7 c3 d7 f4 d6 h4 b6 h2 Qd3+ Ke5 e4 h3 Na3 a4 Nb5 a3 Ne2 a2 Ng3 Na6 b8N Rh5 b7 Ne7 g8N Nc5 Ba3 Nc6 Nf5 Ra5 Re1 a1Q Bb4 Qa3 Nf6 Be7 Rg1 h1B Rg7 h2 Rf7 Bg2 Be2 h1R Bd1 Qh8 d8R Rg5 Ng7 Bf5 d7 Bg6 Bb3 Rf5 Re2 Rc1 Rc8 Bd8 Re1 Bb6 d8R Ba7 Rcc7 Rh5 Qe3 Bh1 Nf5 Nd3+ Kg1 Qf8 Rdc8 f2+ Kf1 Qe8 Ke2 Rg5 Qh3 Qh8 Nbd4 f3+ Ke3 f1B Re2 f2 Re1 Nc5 Nb5 Bf3 Re2 Qf8 Re1 Bc4 Re2 f1Q Nbd7+ Ke6 b8B Nd3+ Bc5 Ne1 e5 Qg8 Ne4 Kd5 e6 Qf8 e7 Qh1 Nh6 Re5 e8N Qd6 Nf8 Qd8 Bd1 Bd3 Nf5 Kc4 Kf4 Qf1 Bb4 Qg1 Re3 Bf1 Re2 Kd3 Bb3 Qh1 N8d6 Qg1 Rg2 Be2 Rg5 Qe8 Rce7 Qd8 Rcc7 Qc8 Bc4+ Kc2 Rh5 Kd1 Rg5 Qd4 Be6 Qd3 Bb3+ Qc2 Rh5 Nd4 Ke3 Qd8 Rc5 Nc6 Rhh7 Qc8 Rc7 Qe8 Rfe7 Qc8 Rhf7 Qe8 Bc4 Qb1 Bb3+ Rc2 Rb7 Rd5 Nc4 Qd8 Be5 Qb8 Bg3 Re5 Ncd6 Nd3 Ba2 Rc1 Rbc7 Ne1 Bb3+
Bb3qR1/3N4/2R1N2B/1kq1N1r1/p3r1nR/3q1r2/R1b1NbQ1/2KRBnq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 e4 f5 b4 a5 g4 c5 b6 a4 b7 f3 e5 c4 g5 f2 d6 Kc6 g6 c3+ Kc2 f4 d7 f3 g7 h3 e6 h2 e7 h4 e8N h3 Bg2 f1R d5+ Kb5 d6 f2 Bh6 Ne7 g8R Nf5 Bd2 Nc6 b8N Ra5 Ne2 Ng3 Ra2 Rh4 Ng7 Re4 Be1 Ne5 Nd2 Ng4 Kc1 c2 Ne6 Qb6 d8R Qc5 d7 Bd6 Nc4 Be5 Nc6 Bb8 Qd5 Bb7 Nb6 Bc8 Rg1 h1Q Ne5 h2 Rdf8 Bb7 d8R Bc6 Rf4 Be8 Rf5 Bg6 Rf4 Bf5 Bf3 Bh7 Rg2 Qg1 Nbd7 h1Q Rf6 Qh4 Rh2 Qh3 Qd2 Qh6 Rh4 Qhf8 Bh1 Rd4 Ba8 Re4 Rc8 Bf5 Rc6 Bh7 Rf3 Bg6 Rd3 Bf5 Kb2 c1B+ Kb1 Bh7 Qb2 Be3 Rd1 Bg6 Qd2 Rc4+ Kb2 Bc2 Qd5 Rf4 Qg2 Bd4+ Kc1 Rf3 Bd2 Re1 Bh6 f1Q Nf7 Kc4 b5 Bf2 b6 Kb4 b7 Kb5 Qh1 Qh3 Nfe5 Nf1 Qg2 Qg3 N2f4 Re4 Ne2 Bc7 b8B Bd6 Ba7 Bb8 Ng6 Qgd6 Nge5 Qd3 Bb6 Ra7 Ba5 Rb7 Nb6 Rg7 Nbd7 Rg5 Be1
1Q2B1rB/1Nn1q3/1N1R4/5pb1/bnR1r3/1r4Bq/1NB2bRq/kqR2KB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 a5 g4 h5 b6 c5 b5 f3 d6 h3 d7 h4 d5 Ke5 b7 f5 b6 a4 g5 c4 g6 h2 g7 a3 d6 a2 Nh3 c3 Nd2 Kd4 e5 c2 e6 Kc3 e7 Nf6 e8B Rg8 Nc4 Ra4 Nf4 h3 Nd3 Nd5 Be3 c1B Bg1 Na6 b8B Nab4 b7 Nc7 Ndb2 Bg5 Bd3 f2+ Kf1 Qe7 d8N Bd7 Nb6 Bc6 Rb1 a1R d7 R1a3 Bc2 Rb3 Rc1 Bb5+ Nd3 Bc6 Ba7 Bb5 b8B Bc6 Nb7 Bb5 d8R Bd7 Ne1 Kb2 Qd6 Ka2 Bb1+ Ka1 Rc4 Bb5 Bc2 Bd7 Qe6 Bb5 Rd6 Bc6 Ke2 f1Q+ Kd1 Bc1 Rd7 Na8 Bc5 Rh8 g8R Nd3 Nd5 Qh4 Rc3 Re4 Rc4 Ba4 Qd6 Nb4 Rd8 Qf6 Rg2 Bg5 Be3 Qg1 Ke2 Qe5 Nd3 Qb1 Bb6 Rg8 Rc1 h1Q Nb2 h2 Bd4 Qe6 Qc7 Bc5 Nb6 Qe7 Bh8 Qg1 Qc8 h1Q Bg3 Nc7 Rd6 Qh3 Qb8 Qgh2 Kf1 Bd4 Bg1 Bde3 Bf6 Bf2 Bh8
2k1BQ1n/qrR3BB/rbb3R1/Nq2p2N/N3B3/1R1r4/K1b2Bb1/nRq5 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 c4 d5 Kc2 Kd7 Kb3 a5 g4 h5 f4 h3 b6 h2 c5 a4+ Ka2 d3 b4 d2 f6 d4 f7 d3 f5 h4 g5 h3 b7 a3 g6 Qb6 c6+ Kc7 g7 Ra6 b5 Ne7 g8B Ng6 f6 Bd7 Qf3 d1B Nc3 d2 Bg2 Bd6 f8B Bc2 f7 d1Q Bh7 Ra7 Bg7 Rf8 Nge2 Qc5 Rb1 Rd8 f8R Nh8 Rf6 Na6 b8N Qdd4 b6+ Kc8 c7 Rb7 Be3 Bc6 Rg6 Qb5 Bf2 Bc5 Rhc1 h1B Nf4 h2 Nh5 Qe3 Qf6 Rd3 Be4 Bg2 Na4 h1Q Rb3 Bd4 Qf4 Nc5 Qf8+ Be8 Rbb1 Nb3 Nc6 Na1 Rb3 Qd1 Rcb1 Qdc1 Na5 Kd7 c8B+ Kd8 Qf3 Bc6 Bd7 Bc5 Be8 Kc8 Qf4 Qd4 Qf8 Qd7 Bd4 Qc7 Bg1 Qb8 Rc3 Qa7 Bf2 Rbd7 Rcb3 R7d5 Nc4 Rd7 b7+ Kd8 Nab2 Bb6 b8R+ Kc7 Rb7+ Kc8 Rb4 Rf7 Re7 Nb3 Rd7 Nc5 Ka1 a2 Rdd6 Rb7 Rd7 Rb3 Nd1 Rd3 Nc3 Qf4 Kb2 a1R Re7 Ra5 Na4 Ra6 Na5 Qc1+ Ka2 Nb3 Rf7 Na1 R4b3 Kb8 Re7 Kc8 Rc7+
N4n2/n1nb1B1k/1r2R1RN/p1B1N3/2q4b/1bQN1N1B/3n1QK1/1qrr1N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 c5 e4 h5 g4 f5 b4 Kf7 g5 Kg7 g6 f3 d6 f4 b6 c4 b5 h3 e5 h2 e6 c3 e7 h4 e8B h3 d5 c2 d7 Ne7 d6 Rg8 b7 Ra6 b6 Ra8 Be3 c1Q Qe2 Ra6 Nd2 Qcc7 Bc5 Nbc6 b8N Na7 b7 Rb6 Nc6 Qb8 Qd3 Qdc7 d8N Bd7 Qc3+ Kh6 g7 Kh7 Bf7 Ng6 Ra3 Be7 Nb4 Nf8 Ne6 Qc6 Bg2 Bh4+ Kf1 f2 Nc7 Qd5 Na8 Qc4+ Nd3 Rh8 Ngf3 Rg8 Rg1 h1B Bd4 h2 Bh3 Rh8 g8N Bg2+ Ke2 h1R Bc5 f1N Nh6 Ne3 Nf1 Nd5 Ra1 Nc7 Re1 Bg5 Kf2 Bh4+ Ng3 Bf1 Re6 Be2 Kg2 Bd1 Nf1 Bb3 Nc1 Ng6 Nd3 Rd8 Ng4 Nf8 Nh6 Qc8 b8N Qb7 Nc6 Rc8 Ncb4 Qbe4 Ne5 Qb1 Nbd3 Rd8 Ne3 Rc8 Rc1 Rd1 Nf1 Bb5 d7 Bc6 d8Q Bd7 N3d2 f3+ Kh1 f2 Qf6 Bc2 Ndf3 Bca4 Kg2 Bb3 Ne3 f1N Rc2 Nd2 Nf1 Rcb8 Qf4 Rc1 Qg3 Rd6 Qf2 Rbb6 Rb2 Rd4 Rc2 Re4 Ra2 Ree1 Ra3 Red1 Ra4 Qa6 Rg4 Qc4 Rgg6
1NnB2bn/1K2Br2/1NB1N2p/R2N2Q1/b3b3/5rqk/1B1bq1R1/R1N1qr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 b4 f5+ Ke5 h3 e4 h6 d4 f3 g4 c4 g5 h2 b6 c3 g6 f2 d6 a4 Kd5 a3 e5 f4 b7 a2 b5 f3 g7 c2 b6 Qc7 Nc3 Ra3 Bb2 c1R Bg2 f1B Qd2 f2 Nge2 Rh7 Qg5 Nc6 b8B Ba6 b7 Nd8 Na4 Rf3 Rg1 Rb1 Nc1 h1B Ba7 Bae2 Bc5 Nf7 Bca3 Bb5 b8N+ Kc8 e6 Nh8 e7 Bfc4+ Ke5 f1Q e8N Qf2 d5 Ne7 g8R Rhf7 Nf6 Qe2+ Kd4 Kd8 d7 Qg3 Nb6 Ba4 Kc5 Kc7 d8N Nc8+ Kd4 Bb4 Ne6+ Kd6 Rg7 Rf8 Ra7 Rf7 Ra5 Ke7 Nc5 Bd2 Ne6+ Nd6 Kc5 Nc8 Nd3 Rbf1 Nc1 Bd3 Bb4 Bh7 B4a3 Bg8 Bb4 Rg7 d6+ Kf7 d7 Ke7 Rb1 a1Q d8B+ Kf7 Nfd5 Rh7 Qh4 Kg6 B4a3 Kf5 Qg5+ Ke4 Bb4 Rf7 B4a3 Qa2 Ra1 Qb1 Na2 Qbe1 Nc1 Bb3 Kc6 Bd1 Qe7 Kf5 Kb7 Kg4 Bd6 Ba4 Bda3 R3f5 Be4 Kh3 Rg2 R5f2 Bc5 R7f3 Qg5 Rf7+ Bce7 R2f4 Nc3 R4f3 Bc6 R3f6 Rg1 Be4 Rg2 R6f3 Ncd5
1q6/1QRbBn2/b1Q1N1pr/1N1rb2B/1B4qR/2n1Bn2/1B1RnB2/K1k4r b - - 0 1 illegal: No possible last move, all moves rejected
1b6/1R6/QnQ1bprQ/Q1NrNrQR/4r1n1/q1B4q/B2N1Q1q/1K4kb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 a5 g4 c5 b4 h5 e4 f3 b6 a4 e5+ Ke7 b7 h3 g5 a3 d6+ Ke6 d7 Kf5 g6 Kg4 d5 Kg3 d6 Kf2 g7 f6 e6 c4 e7 c3 e8Q a2 b5 h2 b6 h4 Qd3 h3 Nd2 Rh4 Rb1 a1Q Qa6 Nh6 g8Q Re4 Bb2 Ng4 Bc4 Qa3 Qg5 Qc7 d8Q Be6 d7 Bd6 Ba2 Bg3 Kc1 c2 Qh8 Kg2 Qc8 f2 d8Q Nd7 b8N Qcd6 b7 Nb6 Ngf3 f1R+ Ne1+ Kf2 Nc6 Qdd3 Qhg7 Bb8 Ne5 Ra7 Qc6 Qg3 Qab5 Ra5 Qa6 Rd5 Q7h6 Rg1 Qdc7 Qgf3 Qd8 Rg3 N1d3+ Kg2 Rf1 h1B Nc5 h2 Qdc7 Qe2 Rf5 Kg1 Qd8 Rg2 Qdc7 Qh3 Bc3 Qed3 Kb2+ c1R Ka1 Rf1 Kb2 Ba7 b8Q Qdg3 Qbg8 Bb8 Qf4 Qf3 Rh5 Rg3 Qgg5 Rg2 Bb4 Qa3+ Kc2 Rg3 Bc3 Rg2 Rb2 Rf3 Qg3 Rf5 Kb1 Na8 Rb6 Nf2 Q3h4 Rg3 Na4 Bf3 Qgf4 h1Q Qd8 Rg6 Qh4g5+ Ng4 Rb7 Q1h2 Qda5 Nb6 Nc5 Bh1 Qf2+
1B6/b3N2K/1kp3n1/1q3Q1N/Q1QRbqr1/N4rN1/3Nn1nR/1B2qbNn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 Kf5 c6 g4 h3 d4 h2 e4 f6 Kg6 Kc7 b4 f3 d6+ Kb6 d7 h4 g5 f5 e5 f4 d5 a4 d6 f2 e6 a3 e7 f3 e8N h3 Bf4 a2 Ng7 Ra5 Nf5 Ra4 Na3 Rh7 Ng3 Bh6 Bd3 f1B Bb1 Qc7 d8Q f2 d7 Rh8 Qf8 Ba6 d8Q Bc4 Q8d5 f1Q Qff5 Bd3 Qc4 Be4 Be5 Ra5 Qa4 Nf6 Bd6 Rf8 Bf4 Kb7 b6 Nd5 b5 Nd7 Kh7 Ne3 g6 Ne5+ g7 Ng6 Be5 Qb8 g8N Ng2 Ne7 Be3 Bd6 Qf4 Bc7 Ka8 b7+ Ka7 Be5 Kb6 Bd6 Qc7 b8N Qb7 Nd7+ Ka7 Ne5 Kb6 Qab4 Ra4 Bb8 Bf2 Nef3 Rf6 Bd3 Be3 Rb1 a1Q Rd1 Bf2 Rd2 Qe1 Bb1 Be3 Rd4 Bf2 N1e2 Bg1 Nd2 Be3 Rf1 h1N Ng1 h2 Rf2 Rf8 Qbb3 Rb4 Qa4 Rf6 Nh5 Ng3 Re2 h1N Rf2 N2h4 Rh2 Ne2 Ng3 Ng2 Qac2 Ka5 b6+ Bb5 Q2a2 Qa6 b7 Kb6 Qcb3 Bbd3 Qa4 Qb5 Qc4 Qg4 Qe5 Rf3 Qf5 Bf2 Be5 Qf4 b8N Nc3 Bd6 Bf1 Be5 Ne2 Nd7+ Kb7 Nf6 Be3 Rd8 Ba7 Bb8 Kb6 Nfh5 Rbb3 Qf8 Rbd3 Rd7 Rd5 Rd6 Rg5 Qf5 Rg4 Rd4
r5Qr/B1b2n2/N1pRB3/3n3N/n3Q1B1/2kb3K/nqrb2RB/1qR3BB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 g4 Ke5 Kg2 Kd4 e4 f5 e5 a5 b6 h5 b5 a4 d6 a3 g5 a2 e6 f3+ Kh3 f2 g6 f4 b7 c6 b6 f3 d7 Ra5 e7 Na6 e8B Nb4 b8B Qf6 b7 Bd6 g7 Bc7 Rh2 Ra8 Rg2 Nh6 g8B Nf7 Ne2+ Kd3 Ba7 Qb2 b8B Ba6 Nbc3 Bb5 Rb1 a1B Qb3 Na2 Qb4 Kc2 d8R Bd3 Qd4 Kb3 Ng3 Kc2 Be2 f1Q Bd7 f2 Be6 Qd1 Rg1 f1N Qe4 Ne3 Rg2 Nd5 B2g4 Qe1 Rd6 Qd1 Kh2 h3 Na4 h4 Nc5 Qf1 Nh5 Qf5 Kh1 h2 Na6 Qf1+ Bg1 Qd1 Ba7 Kb3 Re2 Qc2 Kg2 h1N Kh3 Ng3 Rh2 Ne2 Rg2 Nec3 Bh2 Na4 Bhg1 Bf1 d4 Bd3 Bf4 Kc3 Rc1 Qb1 Bfh2 Bb2 Rf1 Bc1 Bh7 Bd2 Rc1 Ndb4 d5 Qb2 Rd8 Qb1 d6 Nd5 d7 Qb2 Bhf5 Qb1 Bf3 Qb2 Kg4 h3 Kh4 Qb1 B5g4 Qb2 Bd6 h2 Kh3 h1R+ Bdh2 Qb6 Rb8 Qb7 d8Q Qb2 Qg8 Qb1 Rd8 Qb2 Bgf2 Re1 Bfg1 Re2 Rd6 Qb1 Re1 Qcb2 Rf1 Bh6 Rc1+ Rc2 Rd2 Be3 Bh1 Bh6 Rf2 Bd2 Rg2
Rbn3Rb/4R2K/p1N2N2/1n3B2/R1kn1Q1R/6B1/brqn3q/RN1r1qQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 f5+ Ke5 h5 e4 a6 g5 h3 b6 f3 b7 f4 g6 h4 d6 h2 g7 f2 d7 h3 Kf5 f3 Kg6 Bd6 e5 Nc6 b8Q Na7 Bd3 f1N e6 f2 e7 c6 e8R Qc7 d8N Be6 Be4 Ba2 b4+ Kd4 d3 c5 b5 c4 b6 c3 b7 c2 Bf4 c1B Bf5 Qc2 Bg3 Nd2 Ne2+ Kd5 d4 Bb2 Qc1 Kc4 d5 f1N Nc6 Nf3 Re3 N1d2 Nf4 Bf6 Re6 Nd4 Nh5 Bde5 Qc7 Rb8 Qd6 Bf4 Qe5 Rh7 d6 Rh8 d7 Rh7 d8R Ne7+ Kf7 Rh6 Rd5 Nec8 g8R Bh8 Re7 Re6 Qc7 Re1 Kg6 Rg1 Ra5 Rf1 Rg1 h1Q Kh7 h2 Nf6 Qf3 Rg2 h1Q+ Rh2 Qf2 Rh6 Qhh2 Rh4 Rg1 Qe1 Qe2 Qf2 Rd1 Qg1 Qf1 Qd6 Ra8 b8R Be5 Rbb7 Rb8 Rbd7 Rb4 Ra4 Nb5 Ra7 Bf4 Ra8 Be5 Ra5 Bf4 Qe5 Rb2 Qe4 Bd6 Qf4 Bb8 Ra4+
2nBR1R1/2B2bbN/pN1r1q2/q2r1qRk/7n/3N3n/qR2Qb1K/RB3B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 b4 f5 g4 Kf7 Kg2 Kg6 d4 h5 e4 f3+ Kh2 h3 b6 a6 b7 h4 b5 f2 b6 c4 g5 c3 d6 f4 e5 c2 d5 f3 e6 Bg7 d7 Ne7 d6 Nf5 e7 Rh5 e8N Nc6 b8R Na7 b7 Qa5 d8B Be6 d7 Nc8 Bf4 c1B Qe2 Bf7 Nc3 Be3 Nf6 Rh6 Nh7 Kh5 Bfc7 Rd6 g6 Bc5 Bg2 f1Q Na4 Bf2 Nb6 Qb1 Ra4 Qa2 Bf1 Ra7 Ra8 Rd5 b8R Rb7 Nc4 Rb6 Rb4 Rbd6 Nb6 Be3 Rg4 f2 Nf3 Bc5 Bg2 f1Q Ne5 Bf2 Nd3 Qfb1 Rb7 Qbb2 Ra1 Qf6 Kh1 h2 Bf1 Bg1 Kg2 h1N Rbb8 Bc5 Kh2 h3 Rb7 Nf2 Rab8 Bf8 g7 Nh4 g8B Bg7 Ra8 Be8 Be6 Bf7 Bf5 Bd4 Ne5 Bc5 Bb1 Be3 Nd3 Qf5 Kg3 h2 Rab8 h1Q Ra8 Qhe4 Kh2 Qec4 Be7 Bc3 d8R Qd4 Rdg8 Nh3 Nc4 Bf2 Rb2 Nb6 Rae8 Nc8 Nb6 Qg7 Bf6 Qgg6 Bg5 Bg7 Bgd8 Qgf6 Rg5+
2R1QnR1/b6p/br1nqNN1/3BnB2/bB2B2Q/1B2q1nK/r2B2r1/1Q1k4 b - - 0 1 illegal: No possible last move
2r1B2K/1bp3QQ/1r2N1N1/bqb4B/r1n2BR1/1Rn1N3/n2N2Nq/2k1Nb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 e4 f5 g4 a5 b6 h3 g5 h4 b7 h2 g6 a4 d6 h3 g7 f3 d7 a3 d5 a2 d6 f4 Qc2 f2 Nf3 Ra4 Be2 f1Q Nbd2 Ne7 Kf6 Qe8 g8N Qd1 d8N Ra5 d7 Ng6 e5 Ne7 e6 Rb5 Rg1 h1B Nh6 h2 Qh7 Nbc6 b8N Bg2 Rb1 a1B Ng4 h1R Ne3 Bf1 Ne1 Bb7 Bh5 Qc2 Rg4 Rb6 Qg7 Rh4 Qh7 Nc8 e7 N8a7 Ne6 Nb5 d8N Nc3 Nd7 Ka4 b4 f3 b5+ Nb4 Rb3 f2 Ne5 Qa2 Rb2 Ka3 Ng6 Qc6 e8B Bc5 Rb1+ Qb2 Kg7 Nba2 Nef4 Qg2 Ne4 Qh2 Nde6 Kb3 Nfg2 Ka3 Bf7 Rc8 Be8 Kb3 Bd2 Ka3 Kh8 Qb4 Rd1 Kb2 Bc1+ Kb1 Rd3 Bb2 Bd2 Ba3 Bc1 Qb3 Bd2 Bab4 Bc1 Ba5 Bd2 Rd6 b6 Qb5 Qg7 Bd5 b7 Rb6 b8Q Bb7 N3c2 Kb2 Bf4 Kb1 Nce3 Kc1 Rg3 Rg4 Nd2 Rh4 Be5 Ra4 Rg4 Be2 Bf4 f1N Rd4 Bd3 Rb4 Be2 Rb3 Bd3 Nd5 Ne3 Qa8 Nc4 Nde3 Bf1 Qh7 Bf3 Qc6 Be4 Qcd7 Bb7 Qdg7
5r1b/1r2bQ1k/1bq5/Q2Q1nRN/1N6/2Qbr1bQ/1nBNp3/1Kb1BR1Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 b4 Kf7 f4 Kg6 h4 c5 d4 e5 Kd2 a5 Kc2 a4 d6 e3 d7 e4 b6 g3 f5+ Kh6 f6 g5 h5 g2 b5 e2 f7 e1R d5 c4 b7 a3 d6 e3 b6 a2 Bd3 c3 Ne2 g1B Ng3 g4 Bd2 Bh2 Rg1 Qe8 d8Q Be7 d7 Nc6 b8Q Na5 b7 Rh7 Qe5 Nc4 b8N Nb2 Nc6 Ba6 f8Q+ Rg7 Kc1 c2 Nb4 Rc8 Bh7 Bd3 Qda5 Rb8 d8Q Qc6 Qff5 Rf7 Qf1 Rf8 Qdd5 Rb7 Qc3 Re2 Qff7 Re1 Ne2 g3 Nf4 g2 Be4 Re2 Be1 Bg3 Rf1 g1B Nd2 B1f2 Rb1 a1B Bf5 Kg5 h6 Bg1 h7 Nh6 Be4+ Nf5 h8Q B1f2 Qh2 Bg1 Nh5 Kh6 Qh3 B1f2 Qff6+ Kh7 Qfe6 Bc7 Rg1 Bb6 Rg5 Bg3 Qef6 Rf2 Qf3 e2 Qfh1 Rf3 Qcb3 Nc4 Qff7+ Bg7 Qc3 Re3 Qfe6 Bh8 Ra1 Nd6 Kb2 c1B+ Ka2 Nc4 Qf7+ Bg7 Rb1 Nb2 Ra1 Ba6 Bc2 Bd3 Kb1 Na4 Ka2 Ba3 Bf2 Bb2 Rf1 Bc1 Kb1 Nb2 Qff6 Bh8 Be1 Bb5 Qfe6 Bd3 Qf7+
2bk1n2/3Qr2n/n1Q3N1/N2N2BK/2rn3B/npbRb3/N2N2q1/4nBNR b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Kf3 h5 g4 b5 d4 c5 a4 h3 d6 c4 d5 h2 g5 c3 a5 h4 Kg4 h3 f4 c2 g6 b3 a6 b2 a7 b4 g7 e4 d7+ Ke7 d6+ Kf6 Ra3 Ne7 g8N+ Kf7 f6 e3 f5 e2 Be3 Ng6 Ne7 c1B Qd4 Qb6 d8N+ Ke8 Nb7 e1N Rd3 b3 f7+ Kd7 f6 Rh4+ Kg5 Bg7 f8B Qc6 f7 Qe4 Bf4 Be3 Nd2 b1N Qd5 Rg4+ Kh5 Na3 Nc6 Qf3 Nb4 Qg2 Na5 Na6 Be7 Bc3 f8N+ Ke8 Bg3 Rc4 Na2 Rb8 a8N Rb7 Nb6 Ra7 Ne6 Nf8 Bgh4 Rb7 Bef6 Rf7 Qa8 Re7 Nd5 Kd7 Nef4 Ke8 Nge2 Kd7 Rg1 h1N Bg3 h2 Bgh4 Nf2 Ng6 Ne4 Bfg5 h1N Kh6 Nhg3 Rh1 Nf6 Ng1 N6h7 Qc6+ Kd8 d7 Ne2 Kh5 Nd4 Nb6 Nfe6 Qb5 Kc7 d8Q+ Kb8 Qdd5 Kc7 Qb7+ Kd8 Q5c6 Nef8 Nd5 Nf5 Qa7 Nd4 Qad7+
2rk2b1/6n1/B2q2r1/2B1brBN/2nRRN1p/R2QR3/KR3r1r/n2rQ1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 Kb3 h5 g4 h3 e4 c4+ Ka2 h2 b4 c3 e5 c2 g5 h4 g6 a4 d6 a3 g7 f3 e6 f4 e7 f2 d5 f3 b6 Nf6 g8R Rh5 d7+ Kf7 e8R Ba6 b5 Re5 d6 Re3 b7 Nh5 b6 Nc6 b8B Ng7 b7 Ne5 Ba7 Nc4 b8R Re6 Qe1 Rg6 Bg5 c1R Re4 Rd1 Rb2 Rc8 Bc5 Qc7 Bd3 f1R d8R f2 d7 Bd6 Nh3 Be5 Rg1 h1R Nf4 Qd6 Nd2 Rh2 Rge8 Bb7 Re3 Bd5 Ne4 Be6 Ng3 Bd5 Kb3 a2 Ngh5 Be6 Rc1 a1N+ Ka2 Rc7 Ra8 Rc8 Ra3 Bd5 Re7+ Kf8 Rcc2 Bg8 Re6 Kf7 Rce2 Kf8 d8Q+ Kf7 Qd7+ Kf8 Qb5 Kf7 Rf6+ Ke7 Re4 Kd8 Qb3 Nb6 Ba6 Nc4 R2e3 Rd2 Qb1 Rfd1 Q3d3 f1R Rd4 Rdf2 Re6+ Rf6 Re7 Rf5 Qc1 Rfg2 Qcd2 Rff2 Qe1 Rg3 Bh6 Rg6 Re6 Bf6 R6e4 Be5 Bg5+
bN1N3Q/KN6/3pbRb1/1R2b3/b1nN1N1b/n5kB/2R1R2B/1B2qnrr b - - 0 1 illegal: No possible last move
3R1r2/1B1rr1nk/RpQB2N1/2N2q2/Bn2n2n/n1n4b/1RN2R2/2R1K1bN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 f4 Kg7 a4 h5 g4 c5 f6+ Kh7 g5 e5 a5 b3 f5 b2 f7 e4 a6 e3 f6 h3 a7 h4 d6 e2 d7 b6 d5 h2 d6 c4 Qb3 h3 Ra2 c3 Qd5 c2 Na3 b1N Rb2 Ne7 Bg2 Nf5 Bf4 c1N Qc6 Na2 Nc2 Ng7 Bg3 Be7 f8R Na6 f7 N6b4 Bd5 Qe8 d8R Nac3 d7 Bc5 Bd6 Qe5 Bf3 Rb8 a8R Rb7 Ra6 Na3 Bd5 Qf5 g6+ Kh6 Bb3 Rh7 Ba4 Rb8 Kd2 e1R Ne2 Bg1 Ng3 Re8 Rh8 Re7 f8N Bf2 Rg1 h1N Rc1 h2 Rg8 Be3+ Ke1 Nf2 Nh1 Nfe4 Rh8 Bg1 Rg8 Ne8 g7 Ra8 Ng6 Rb8 Ng3 h1N Rf8 Ra8 g8B Ng7 Bd5 Rb8 Rde8 Ra8 d8N Rb8 Nh5 Nhg3 Nb7 Bd7 Nc5 Rd8 Rg8 Rh8 Rgf8 Kh7 Rf7 Rf8 Rf6 Bc8 Rf7 Rdd7 Rd8 Qh3 Rf4 N3f5 Rf2 Nh4 Ng3 Qe6 Nh1 Qf5 Ra8 Ba6 Ra7 Bf1 Ra6 Bh3 Qa8 Qg4 Bb7 Qf3 Qc8 Qf5 Qc6
1B3qrq/3kB1b1/q4qB1/RNnNB3/b2Rqn2/K3QQ2/R4r1p/1q3B1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 Kb3 h5 g4 h3 e4 h4 e5 f3 b6 f4 e6 f2 g5 h2 e7 c4+ Ka3 a4 b4 h3 d6 f3 d7+ Kf7 e8B+ Ke6 g6 c3 g7 c2 d5+ Ke7 b5 Bb7 Bg5+ Nf6 g8B Na6 Ra2 Nc5 Nc3 Bc6 b7 Bg7 Bg6 Qf8 d8R Rb8 B8h7 Rg8 b6 Bb5 Bf4 Nh5 Be5 Nf4 d6+ Ke6 d7 c1Q+ Rb2 Qf6 Nge2 Qb1 Nd4+ Ke7 Rg1 h1Q Ra2 h2 Rg5 Ra8 b8B Qg2 Be2 f1Q b7 f2 Qb3 Bc6 Ndb5 Qge4 Nd5+ Ke6 Qd1 Qh3+ Qb3 f1Q Qf3 Qh4 Bbd6 Qf8 Rf5 Qhf6 b8B Ra7 Be7 Rb7 Na7 Rb2 Nb5 Qh3 Bf1 Rf2 Re8 Qh6 d8Q Qhh4 Qa5 Kd7 Qe1 Qh5 Qee3 Qhh4 Bf7 Qh5 Bhg6 Qh8 Rc8 Bb7 Nbc7 Na6 Nb6+ Kc6 B5d6 Qe1 Qg2 Qa5 Rd2 Qf3 Rd8 Ba8 Ka2 a3 Rb5 Qb4 Be5 Nc5 Rd4 Qa5 Bb3 Qa6 Ra5 Bb7 Bd1 Qe4 Nbd5 Kd7 Bf3 Bc6 Re2 Ba4 Nb5 Bc2 Qg3 Bd1 Bh1 Ba4 Ka1 a2 Kb2 Bc2 Red2 Ba4 Ka3 a1Q+ Ra2 Qab1 Qgf3
2b3kn/2r4r/R2B3Q/1BNNn3/1qB1BB1R/n1N1KB2/3pnn1b/r4rQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 b4 Kf7 e4 a5 g4 h5 c4 d5 b6 d3 e5 f3 b5 d2 b7 h4 g6+ Kg7 b6 d4 e6 d3 e7 a4 e8B f4 c5 a3 g5 a2 c6 h3 c7 h2 Ne2 Qe7 Nbc3 Ra7 Bc6 Nh6 Nd5 Rh7 Nec3 Nd7 b8B Ne5 b7 Kg8 g7 Nhf7 Qe2 d1R Qd2 Qb4 Be2 Ra4 Bb5 Nh8 Qe3 Ra5 Qb6 Ra3 Qh6 Ra7 Be3 d2 Bed3 Qd4 Be4 Qb4 Bc5 Bd6 Be3 Bg4 c8B Bc7 Bcd7 Rg1 Bdc6 Bc8 Bc5 Rc1 Bd6 Re1 Rc1 a1N Rc2 Rc1 Ra2 Nc2 Ra3 Ra1 Ra6 Ba5 Bbc7 Na3 b8N Rb7 Nd7 Ra7 Bb6 Rc7 Be3 Bb6 Nc5 Ba7 Rg1 Bb8 Rg4 Rc1 Rh4 Ra1 Nd1 h1N+ Kf1 f2 Ke2 f1N N1c3 Neg6 Kd3 f3 Bef4 Nfg3 Ke3 f2 Bb7 f1R Bf3 Nf2 B7c6 Bd7 Bb7 Kf7 g8B+ Ke8 B7c6 Ne5 g6 Ne2 g7 Qb2 Be6 Qb4 Bf5 Kf7 B5e4 Bg4 Bc4 Kg8 B6b5 Bc8 Nb3 Kf7 Be7 Rb7 Bfg5 Ned3 Nc5 Bh2 Bf4 Ne5 Bf8 Rd7 g8Q+ Ke8 Qgg5 Kf7 Qg1 Rc7 Bg5 Kg8 Bd6 Rhe7 Bf4+ Rg7 Bg3 Rh7 Bf4+
2nb1br1/2r3R1/1bb1k1Nr/4qBR1/R1nB2KN/BR5R/pr1r4/4QNN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Kg3 f2 b6 c4 b5 a4 e6+ Ke7 h5 a3 h6 c3 h7 c2 b7 Nd7 b8R Ne5 b6 Qc7 b7 Bd7 Qe1 Bc6 Bh3 f1R Nd2 Rf2 Nf1 Nc4+ d6+ Kf6 e7 a2 d5 Rd2 Ba3 c1R e8N+ Kf7 Rd8 Ne7 b8R Nc8 Rb3 Rb1 Ng7 Rbb2 Rh2 Ra7 Rg2 Rg8 h8N+ Kf6 Ng6 f4+ Kh2 f3 Kg3 f2 Rd7 Qb8 Nf5 Rc7 Rg7 Qb5 d7 Qb8 Nh2 f1R d8R Qb5 d6 Qe5+ Nf4 Rff2 d7 Rd6 Nh4 Rfd2 Nf1 Re6 Nhf3 Kf5 Rc1 Rh6 Rcc3 Kf6 Re8 Kf5 Ree7 Kf6 d8B Kf5 Nh4+ Kf6 Kh2 g3+ Kh1 g4 Nfg6 Bd5 Ref7+ Ke6 Rf4 Bc6 Rcf3 Qe4 Bf6 Qe5 Rgf2 g2+ Kh2 Qe2 Kg3 Qe5 Ne2 g1B Rg2 Bgc5 Ng1 Bce7 Rfd3 Qe2 Bd4 Bd8 Rf5 Qe4 Rg5 Qe2 Rf2 Qe4 Rff5 Qe2 Kf4 g3 Rf3 g2 Kg4 Qe3 Ra5 Qe2 Ra4 Qe5 Ne2 g1B Rfc3 Bf2 Ng1 Kf6 Bg2 Ke6 Rh3 Be3 Be4 Bf2 Bc3 B2c5 Bd4 Bb6 Bf5+
Rr2R2K/R5Bn/1b1Q4/bNn4B/k3rQp1/6q1/rR2RQbR/Nrr1b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Ke3 c4 h5 c3 e6+ Kc7 d6+ Kb6 d5 a4 Kd4 f4 Ke5 a3 h6 a2 d7 f2 d6 f3 e7 g3 e8R g2 h7 c2 Nd2 Be7 Rh2 Bb7 Ne2 g1B Bb2 c1B Qc2 Qc7 d8Q Bc6 Nc3 Na6 Be2 f1R Nb3 f2 Bh5 Ka7 b6+ Kb7 b5 g4 Kf5 Bcg5 Kg6 Rb1 Kg7 f1R d7 Nf6 Qf2 Bb4 Re2 Re8 h8R Re4 Re8 Bd2 Kh8 Qg3 Qe7 Ba5 Qd6 Rfc1 d8R Nc5 Rc8 Ra6 Ra8 Nh7 Qdf4 Be1 Qd6 Rd1 Qdf4 Rd8 Ra7+ Kc8 b7+ Kd7 b6 Rb8 Nb5 Bd5 Bc3 Kc6 Bg7 Rc1 Rb1 a1R Rbb2 Rab1 Na1 Re7 Rbc2 Bg2 Rcd2 Re4 Rb2 Rc8 b8Q Rd8 Qbe5 Rb8 b7 Bab4 Kg8 Ra8 b8R Ra2 Nc3 Nb3 Qfd4 Ba5 Qde3 Bgf2 Qef3 Bfb6 Qf2 Nc5 Rbd8 Rc8 Kh8 Ra8 Rd1 Rd8 Ra8 Rc8 Rd7 Rb8 Rda7 Rb4 Ne4 Kb5 Nd6+ Ka4 Nb5 Re4 Qd6
1rb1kbB1/rNn1qpRN/nQ6/2N1n2N/1nR2n2/6rQ/1B5r/1N2KRN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 c5 e4 a5 b4 h5 g4 h3 b6 h2 b5 h4 g5 c4 e5 c3 b7 f3 d6 c2 d5 a4 d7+ Ke7 d6+ Ke6 b6 h3 g6 a3 g7 a2 Qd3 Ne7 g8R Ra4 Rg7 Nd5 Bb2 Qe8 d8Q c1N d7 Na6 b8N Ne2 b7 Nef4 Qb6+ Ke7 d8N Ndc7 e6 Qd7 Qh7 Ke8 Bd3 Qe7 Nd7 Ra5 b8N f2+ Kd2 f1N+ Ke1 Ra4 Nb7 Nd2 Ndc5 Nc4 Nbd7 Ne5 Qh4 Ra3 Bh7 Rg3 Bg8 Rh7 Na3 Rh8 Rc1 a1R Nb1 Ra4 Rc4 Raa3 Ne2 Ra2 Rg1 h1N Rf1 h2 Ng1 Nf2 Qh5 h1R Qh3 Qd6 e7 Rh2 Ne6 Ra4 Ng5 Raa3 Nh7 N2d3+ Kd1 Ndb4+ Ke1 Nb8 Ndc5 Ra7 Qh5 N8a6 Qh3 Qe6 Nb3 Kd7 e8N Ke7 Nef6 Qd6 Nh5 Ke8 N1d2 Qe7 N3c5 Bd7 Nd6+ Kd8 Rg4 Bh6 Nb1 Be6 Ng5 Bd7 Bh7 Re8 Bg8 Bf8 Nh7 Bf5 Na4 Kd7 Rg7 Rb8 Nb7 Ke8 Nac5 Bg4 Nb3 Bc8 N3c5
bqk4R/R1rB3R/n1nQ4/4NnK1/B4Bn1/N1rB1BNb/2rR1bp1/r7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 d5 Kg3 Kd7 Kf4 a5 e4 g5+ Kf5 d3 h4 d2 c4 d4 b4 d3 c5 g3 h5 a4 h6 g2 b6 a3 h7 g4 b7 a2 b5 g3 b6 Na6 b8R Ne7+ Kg5 f5 b7 f4 Na3 f3 Ne2 g1R c6+ Kc7 e6 g2 e5 f2 Rh2 Ra7 Ng3 Qe8 Be2 f1N Bf3 Ne3 Rh4 Bd7 Rd8 Ng4 b8N Rh1 Rh5 Rh3 Rh6 Bc8 Nd7 Bb7 Rh5 Ba8 Rh6 Bg7 Rh5 Rf8 h8R Rf4 R5h7 Rc4 Qh1 d1B Qh2 Rc2 Bf4 Nc8 e7 d2 e6+ Be5 Be3 Bd4 Ne5 Kb8 Bf4 Bf2 Rd5 Rc7 Rd8 Qf8 e8B Qb4 Rd5 Na7 e7 Kc8 Rd4 Qb3 Bg6+ Qg8 e8B Qb3 Bge4 Qb8 Bd3 Be2 Rdd7 d1N Rd6 Nde3 Rdd7 Rb7 c7 Nc6 Rd1 a1R Rd2 Nf5 Rdg7 Rb4 Rf7 Rd4 Re7 Rd7 Ref7 Kb7 c8B+ Kc7 Rfg7 Kd8 Re7 Rc7 Be6 Bd1 Bb3 Kc8 Ba4 Be2 Bde4 Bc4 Bd3 Be6 Qg1 Rh1 Qh2 Rhc1 Qh6 Bd7 Qd6 Rc3 Reg7 R1c2 Bfe4 Ngh6 Qb4 Rb7 Bab5 Nd6 Ba4 Bh3 Bf3 Ndf5 Qd6 Ng4 Rf7 Rb6 Ra7 Rb7 Bf1 Re7 Bd3 Rc7 Bd7#
4nq2/QnQ2BrR/1KR4R/RN2rR1r/1BB1b3/3Npnn1/Rb4b1/2rk4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 c6 g4 h3 f5 e6 g5 a4 f6 a3 b6 h2 f7 a2 b5 e3 b7 h4 g6 h3 b6 e2 g7 e1N Qc2 Nf6 g8B Na6 b8R Bg7 f8R Nc5 b7 Ra7 Ra8 Rh5 Nf3 Ne8+ Ne5 Nf3+ Kc4 Ra5 Nd3 e5 Rf5 e4 Bf7 e3 Ba3 Bb2 Nc3 Qf6 b8R Bb7 Bb4 Qh6 Ra6 Qf8 Rba8 Rb5 Rc1 a1R Qa4 Rb1 Be2 Ra5 Rc2 Rg1 Bf1 Rb5 Ra5 Rg7 R8a7 Ba8 Be2 Bb7 Ra1 h1N Ra2 h2 Qa3 Kc7 d6+ Kb6 d7 Ng3 d8R h1B Rd6 Bg2 Rh6 Ba8 Rd7 Nb7 Rc1 Re5 Nb5 Re6 Rc7 c5 Kd5 c4 Rh1 c3 Bf1 Nbd6+ Rc6+ Kb7 Kc5 c2 Ne1 c1R+ Bc4 Re7 d4 Re5+ d5 Kb8 Nc7 Nb7+ Kb6 Kc8 Nd3 Kd7 Rac5 Ke7 Qa7 Kd7 Rh7 Ke7 Nb5 Kd7 Rg5 Ke7 d6+ Kf6 Rg6+ Kf5 d7 Ke4 d8Q Bd4 Qc7 Bb2 Na3 Kd4 Ra5 Ke4 Rgh6 Kd4 Be7 Kc3 Nb5+ Kd2 Rf1 Kc2 Rf2+ Kd1 Bb4 Nbd6 Rc5 Be4 Rc6 Nb7 Rf1+ Ne1 Rff6 Nf3 Rf5
Rkb2N1B/5B1R/2rr3n/1N2K3/1p1QN3/n1nb2N1/N2q2Q1/rNbB2bn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 h5 Kf4 b5 a4 c5 d4 Kc7 g4 e6 f6 c4 d6+ Kb7 a5 h3 f7 b3 a6+ Ka7 d7 h2 g5 c3 g6 h4 g7 h3 d5 c2 d6 b2 Ke5 Qh4 d8Q Qg3+ f4 Rh4 d7 Nh6 g8B Qe1+ Qe2 Qd2 f5 Rc4 f6 Rc6 Qg2 Bc5 Ne2 Bg1 f8N Rd6 f7 Nc6+ Ke4 e5 Ng3 Ne7 Nh7 Kb8 f8N Nd5 Bf7 Ra7 Ng5 Rc7 Be2 Rcc6 Bd1 Nc3+ Kf3 Ka8 a7 Kb7 a8N Kb8 Nc7 b4 N5e4 Kb7 Nb5 Kb8 N1a3 b1N Bb2 c1B Qh4 Rd5 d8N Rd4 Nde6 Rdd6 Nc2 Na3 Nf4 Bf2 Nd5 Bb6 Rg1 h1B Qf4 h2 Qg4 Ne2 Ndc3 Bf2 Re1 Bg1 Na2 Nc3 Qd7 Rg6 Qd4 Rge6 Nf2 Red6 Re3 e4+ Kf4 Ra6 Ke5 Rac6 Rd3 e3 Nfe4 e2 Rf3 e1R Rf4 Rf1 Rh4 Ng8 Rh7 Nh6 Qe2 Bf3 Qef2 h1N Qg2 Nab1 Nca3 Be2 Rh8 Bd3 Rh7 Na4 Nbc3 Re1 Nab5 Na3 Nb1 Nc3 Qc5 Nd5 Be2 Bf5 Nac3 Qd1 Nbd2 Nc2 Ra6 Bd7 Na2 Na3 Bd4 Nc3 Kf4 Be6 Bh8 Bb2 Ke5 Bc8 Qd4 Qc2 Ra5 Ra1 Nb1 Qd2 Bd1 Bc1 Ra8+
R2RB3/Q3k3/rBR2rR1/1b1q1p2/2nN1R1K/2n5/1rbB1N1n/1rRQ2bb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 c5 e4 f3 b6 h3 Kg3 h2 b5 a4 b7 f2 g5 a3 g6 a2 g7 c4 d6 c3 e5 c2 e6 Nh6 g8R Nf7 d5 Bd7 b6 Na6 b8R Nc7 b7 Rh6 e7 Ra6 Nh3 Rf6 Na3 Nb5 Bd2 c1R Rc8 Ne5 b8Q Nc3 Kh4 Rb1 Nc2 Nc4 Rc6 Rb2 Rc1 a1R Nd4 Rab1 Rg6 Bg7 Bg2 f1N Qa7 Kf7 Rg1 h1B e8R Nh2 Nf2 Bh8 Bf1 Be4 R1g4 Bc2 Rf4 Qa5 Ra8 Bg7 Kg5 h4 Bg2 h3 Kh4 Bf8 Bf3 Be7 Bh5 Be8 d7 Bc5 d8R+ Bd7 Rg2+ Ke7 Be8 Qb5 Rg6 Qb7 Rb6 Bb5 Rc6 Qd7 Ne6 Be3 Nd4 Qb7 Nh1 Bg1 d6+ Kf8 d7 Ke7 Rd6 Qd5 Nf2 Ng4 Rc6 h2 Rdb8 h1B d8B+ Kf8 Bc7 Nh2 Rd8 Ke7 Bb6+
2r1B3/r3Nr2/2q1R3/BBB1br2/2R3k1/q1b1Q1N1/1NpR1R1B/nb1nK1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 a5 b4 c5 e4 g5 d6 Ke6 d7 f5 e5 g3 h5 g4 h6 c4 h7 f3 b6 f2+ Ke2 a4 b7 c3 b5 a3 b6 g2 Bb2 f4 d5+ Kf5 e6 g3 d6 a2 e7 Nf6 e8B Qc7 d8B Ra7 d7 Kg4 Rh6 Bb4 Nd2 Nc6 b8B Nd5 b7 Ne3 Rd6 Na5 Qb3 Qc6 Nc4 Nd1 Rc1 a1Q Re6 Qa3 Be5 Rf8 b8R c2 h8N Bc3 Ng6 Rh8 Qb6 Nb3 Qe3 Na1 Ne7 Rf8 Ba5 f3+ Kd3 Rg8 Ne2 g1B d8R g2 Ng3 Bh2 Rb4 g1B Bd6 Ba6 Bc5 Bb5 Be2 f1R Rb1 Ba4 Bc1 Bb3 Nb2+ Kh3 Rd7 f2 Rc4 Ba2 Bd2 Rf8 Rc1 Bb1 Be1 Bd4+ Kd2 Rf7 Bd3 Kg4 Ke2 Rf5 Bc7 Rf7 Bea5 Re1+ Kd2 f1R Rd5 R1f6 Rf5 Rf1 Rf2 Rf5 B7d6 Nc3 Re1 Nd1 Ree2 Re1 Nf1 Be5 Ng3 Bh2 Bb8 Rh1 Bbd6 Bg1 Ke1 Rh8 Rd2 Rg8 Ra4 Rgf8 Bb5 Rh8 Rc4 Rg8 Bd7 Rga8 Be8 Rc8 Ne4 Bc3 Bdc7 Bg7 Bh2 Bge5 Ng3+
qqr3k1/RR1q1b2/1r1qRB1r/1Q1n2bN/rB2p3/2RBN2R/5KR1/5Qn1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 f4 c5 b4 e5 g4 a5 b6 h5 f5 a4 g5 c4 f6 h3 b5 e3 b7 e4 b6 a3 d6 h4 d5 a2 d7 e2 d6 c3 Bb2 h2 Kf2 e1R Nd2 h3 Nc4 c2 Ne3 c1R Bd3 Bh6 Ne2 Ne7 g6+ Kg8 g7 Bg5 Nf4 Nd5 Nh5 Nc6 b8R Rh6 b7 Ne5 Qf3 Qe8 d8R Be6 d7 Ra4 Rdc8 Bf7 d8R Rc5 Qe2 Nf3 Qf1 Ng1 Rd6 Rb1 Re6 Qf8 Bd4 Rb6 Rc7 Rcc4 Rc1 a1Q Rc3 Qc8 Ra8 Qb8 Ra7 Rcc6 Rce7 Qd6 b8Q+ Rc8 Qb7 Qb1 Qa6 Qb5 Reb7 Qbd7 Qb5 Nf3 Rg1 h1Q Rg3 h2 Rh3 Ng1 Be5 Kh7 g8R Qg2+ Ke1 Qa2 Rg6 Qaa3 Kf2 h1Q Bd4 Qb8 Be5 Qad6 Bd4 Bf4 Rg2 Bg5 Be5 Qa8 Bd4 Qhh2 Be5 Bg6 f7 Qdb8 f8B Bf7 Bd4 Kg8 Bb4 Qhd6 Bf6
QqbR1KR1/5R1B/1R4bp/2RqB2q/rB2k2n/1R6/1N2r1b1/3NqQbn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 a5 b4 f6 d4 f3 g5 f2 b6 h3 g6 c4 g7 c3 b5 h2 b7 c2 b6 a4 Bd2 c1Q Ra3 h6 Nf3 Qc4 Bb4+ Qc5 Nc3 Bg4 Ne1 Na6 b8R Bh5 b7 Ne7 g8R Ng6 Nd3 Nh4 Rb3 a3 Nb2 a2 e3 a1Q Bd3 Qb1 Qf1 Qe1 Ncd1 f5+ Kf4 Rh7 e4 Bg6 Rg1 h1B Rg5 Re7 Bc2 Bg2 e5+ Kc7 e6 Kd6 Rg7 Qe2 Be4 Qh5 Rf7 Re8 e7 Qb6 Qg1 f1B Bc2 Bb5 Qf1 Bd7 Bb1 Bc8 Be4 Kd7 d6 Ke6 d7 Qd5 d8Q Nc5 Bc2 Ra4 Bb1 Qd7 d5+ Kd6 Be4 Bg7 Bd3 Bd4 Bb1 Qa7 Qa5 Qb6 Qa8 Bg1 Bc2 Kc7 Ke5 f4 d6+ Kc6 Kf6 f3 Kg7 f2 Bf5 Kd5 Bd3+ Qf5 d7 Ne4 d8R+ Qd6 Bc2 Ng3 Be4+ Kd4 Bd3 Qe6 Rc5 Qed5 Bf5 Nh1 Bb1 Rh8 e8R Qh2 Re6 Re8 Rb6 Re2 Kf8 Qg3 Qe1 f1Q Be4 Qff4 Qf1 Qe1 Bc2 Bch3 Rbc8 Qc7 b8B Qb7 Bh2 Qb8 Bb1 Rc2 Be5+ Ke4 Rcc3 Be6 R8c5 Bc8 Rg3 Bh7 Rgg7 Bg6 Rg8 Bgf5 Nd3 Re2 Nc3+ Ke3 Nb2 Bh7 Be4 Bhf5 Bf3 Bc2 Be4 Bd3 Bh7 Bg6 Ncd1+ Ke4 Bd2 Nf5 Bdc3 Nh4 Bb4
Nn1Br3/RN1R3r/R3p3/Rb2Kn1r/4B2Q/R1rN4/2nq1q2/kn1QR1b1 b - - 0 1 illegal: No possible last move, all moves rejected
N2qB1r1/2pn1r2/Q1b2Bn1/1NBk4/B1b2bK1/5Q2/1nq1Bb1R/nR1N1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 b4 h5 e4 a5 d4 f5 g4 c3 g6 h4 g7 h3 d5 h2 b6 c2 e5+ Kd7 b5 a4 e6+ Kd6 e7 a3 e8B a2 g5 Ra3+ Nc3 Ba6 b7 Rh4 b6 Qd7 g6 Bc4 Ne2 Ne7 g8B Rg4 g7 Qd8 Nd4 Ng6 Be3 c1B Rb1 Nd7 b8N a1N b7 Be7 Bg1 Bh4 Nb5+ Ke5 d6 Bf2 Bgf7 Ra8 g8B Rh4 Na3 Rh7 Nab5 Rg7 Bd5 Rf7 Bc6 Bce3 Qa4 Bd2 Qa6 Ke6 Kg2 f3+ Kh3 f4 Nd1 Ke5 Kg4 Bde3 Na3 Kd4 Ba4 Kd5 Nb5 Bh4 Bh7 Qc8 Nc6 Ke4 b8Q f2 Ne7 f3 Bh3 f1Q Na3 f2 Qb3 Nb6+ d7 Qd3 Nf5 Qc2 d8B Bf4 Bf6 Nh8 Nb5 Nd7 Nfd6+ Kd5 Bd3 Ng6 Be2 f1N Ba7 Bf2 Qe3 Ba2 Bc5 Nd2 Bhf1 Nc4 Qh3 Qb8 Nc8 Nb2 Qg3 Bc4 Nb6+ Ke6 Qf3 Qc8 Rg1 Rb8 Rg2 h1B Qg3 Ra8 Rh2 Bc6 Qh3 Rb8 Na8 Kd5 Qe3 Nb6+ Bd7 Qf8 Rh1 Qd6 Rh8 Rg8 Be8 Qd8 Rh2 Nd7 Qf3+
r3bR1q/R1p1q1N1/rb2q2n/B1nrkrN1/B2R4/K1R1q3/3BN3/1R3QN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb3 f5 g4 a5 e4 a4+ Ka3 f3 b4 f4 e5+ Ke7 d6+ Ke6 g5 f2 d5+ Kf5 g6 h3 b6 h4 b5 f3 g7 h2 b7 h3 b6 Rh7 e6 Ke5 e7 Rh5 e8N Kf5 Bd2 Ke5 Nc3 Nd7 b8R Qe7 b7 Nh6 g8R Nc5 Nce2 Bd7 Ng7 Be8 d7 Rg5 Bg2 f1Q d8N f2 d6 Qe1 d7 f1R Nde6 Rff5 d8R Qf2 Qf1 Qe3+ Rd3 Rh5 Rc3 Ra6 Kb4 a3 Bc6 a2 Rd8 Rhg5 Rb1 a1R b8B Ra8 Ba7 Ra6 Bb6 Rh5 N2d4 Rhg5 Ba5 Rh5 Nge2 Rhg5 Rg1 h1Q Ka3 h2 Ba4 Qhe4 Rh1 Rh5 Ng1 Qd5 Ng5 Qde6 Nh7 Rhg5 Nde2 Rh5 Rd4 Rhg5 Nh3 Rh5 Rg1 h1Q N7g5 Rb6 Bb3 Nd3+ Ka2 Rf2 Qe1 Nf7 Ra1 Qc5 Qb1 Kf6 Nf3 Rd5 Nfg5 Rff5 Re1 Qh2 Nhg1 Ke5 Rec1 Bd6 Rf8 Qh8 Bd1 Nh6 Bc2 Rc8 Bb4 Ra8+ Kb3 Rc6 Ra7 Ra6 Ba5 Qb4+ Ka2 Bc5 Ba4 Bb6 Re1 Qbe7 Qc1 Rd6+ Ka3 Nc5 Rf1 Rd5 Qe1 Bc6 Qf2 Bd7 Rb1 Be8 Qf1
1N2k2r/7B/2B1KBN1/N2Bb1N1/3r1Qr1/qBp2R2/bpn2R1n/Rn1qq3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 h5 Kf3 f5 e4 c5 g4 b5 d4 b3 a4 b2 e5 c4 d6 c3 a5 h4 g6 b4 d5 h3 g5 h2 d7+ Ke7 a6 b3 a7 Rh6 g7 Rd6 e6 Rc6 g6 Rc7 d6+ Kf6 e7 Na6 e8B Rc4 Na3 b1N Bd3 b2 Nh3 Nb4 Qf1 Qc7 d8R Qc5 d7 Ke7 Ng5 Nf6 g8B Qa5 g7 Rd4 Nc4 Qa3 Na5 Ng4 Bb3 Nc2 Be3 Rb8 a8B Rbb4 Bad5 Bb7 Rg1 h1R Rg2 Rh8 Rf2 Ba6 Ra8 Bc4 d8N Ra4 Bec6 Nh2+ Kg2 f3+ Kg3 Rb4 B3e4 Ra4 Kf4 Rb4 Ke5 f4 Bh7 Ra4 Bb7 Ke8 g8N Bd6+ Ke6 Be5 Ne7 Rb4 Ng6 Ra4 Rg2 f2 Bc1 f3 Ndc6+ Bb8 Ra7 Be5 Nb8 Rb4 Bd2 Ra4 Qc1 f1Q Rf2 Qe1 Be3 Rg4 Bd4 Qd1 Qf4 Qe1 Rd2 f2 Rd3 f1Q Rf3 Qd1 Rf2 Qfe1 Bc6+ Kd8 Rf7 Rb4 Bba4 Ba2 Bab3 Rc4 Qd2 Ra4 R7f3 Rc4 Qf4 Rb4 Bc5 Rd4 Bf8 Qe3 Bg7 Qee1 Ba8 Ke8 Bf6 Rg3 Bab7 Rg4 Bbc6#
1Nnbn1b1/2qQ4/Nq6/4p1kb/2rNQ3/1npKN3/2RRQBq1/N1r3NB b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 Kg6 g4 e5 f4 h5 d4 c5 b6 a5 b7 a4 d6 c4 d5 h3 f5+ Kf6 g5+ Kf7 b5 c3 d7 h2 f6 Kg6 d6 a3 b6 h4 f7 h3 Ra2 e3 Kd3 e2 Rd2 e1Q Bg2 a2 Qe2 a1N Na3 Ra4 Nc2 Qe8 d8Q Qe7 d7 Nb3 Na1 Nc6 b8N Rc4 b7 Na7 Na6 Qf2 b8N Qb6 Qe8 Bg7 d8Q Bg4 Qed7 Nc8 f8N+ Kh5 g6 Nf6 Qa4 Ne8 Ne6 Qec7 Qdd7 Bf6 g7 Bd8 Nd4 Kg5 g8N Bh5 Nf6 Rf8 Nd5 Rf1 Ba3 Rc1 Bc5 Rf1 Ndc2 Rh4 Bf2 Rf4 Qac6 Rc4 Nd4 Rd1 Ne3 Rb1 Rc2 Rc1 Qd1 Ncd6 Nge2 Nc8 Re1 h1Q Ng1 h2 Be4 Qf3 Qe2 h1B Rd1 Qh3 Qa8 Qf1 Bb7 Bd5 Rdd2 Bg8 Bh1 Qg2 Qe4
N2R1BqQ/2b1K1n1/2R3Rq/1k1p2r1/qn2bBQ1/1p2b2r/1NB3R1/R3rR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 g5 Kd3 e5 Kc4 b5+ Kd5 d6 f4 Kd7 h4 g4 a4 b3 c4 g3 a5 g2 h6 e4 c5 d3 h5 b2 a6 d2 c6+ Kc7 a7 Kb6 h7 b4 h6 b3 c7 e3 f6 e2 f5 e1Q f7 Nc6 f6 Rb8 a8R Qe3 R8a6+ Kb7 Rh2 Ra8 Nf3 g1B Ne1 Ra7 Nc3 b1R Nd3 Bh3 c8R Bf5 Nb5 Be4+ Ke6 d5 Nc7 Bd6 f8B Nb4 f7 Ne7 Rg2 Nf5 Na8 Bc7 Qg4 d1Q Nb2 Qdd4 Bd3 Qd2 Rd6 Be3 Bc2 Rg8 h8R Rg5 h7 Qc4 Be7 Qg8 Bf8 Ng7+ Ke7 Ra4 Rdd8 Kc6 Rd6+ Kb5 Rg6 Qc6 Rd8 Ra2 Rdd6 Qa6 Rc6 Qd4 Bd2 Re1 Bc1 Qa4 Bd2 Qb6 Bc1 Bf2 Bf4 Be3 Bd6 Qb8 Bb1 Bg1 Nc4 Bcb6 Re2 Ne8 Bg7 Bge3 f8R Rb2 Rf1 Qf8+ Kd7 Rf5 Bf4 Bc7 Ke6 Rd2 Nb2 Rg5 Bc2 Qd8 Rh2 Rf2 Bh6 Rf3 Rg2 Rh3 Rhg8 Qg7 h8Q Qh7 Bg7 Qh6 Rf8 Nf6 Re8 Nh5 Kf7 Qc8 Kf8 Qe6 Rd8 Qg8+ Ke7 Bc1 Rd7 Be3 Bf8 Ng7 Rd8
QKR5/3N1qqr/3p3b/1B1n1BqN/NNb5/1n4Br/1b2Bp2/knB1RR2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 g5 c4 a5 e4 f5 h6 d3 h7 g4 c5 a4 c6 d2 h5 a3 b6 f3 h6 f2 c7 g3 b7 f4 Be2 f1Q Nc3 a2 Qa4+ Kc5 b4+ Kb6 b5 Kc5 b6 d1N Nh3 f3 Nf4 g2 Nh5 Na6 b8N g1B b7 Ra7 Nc6 Nf6 b8N Nd5 Nb4 Bb7 c8B d6+ Ke6 Kd4 e5 Qg5 Kd7 Be3 e6 Bg7 Rb1 a1Q e7 f2 e8B Qb2 Bg4 Qc4 Rf1 Qca2 Ra1 Kc4 Qa5 Kb3 Na4 N1c3 Be2 Nb1 Re1 Qbf6 Qd8 Qfg6 Qa5 Bb2 Qd8 Rf8 h8B Rf3 h7 Rh3 Be5 Qg8 h8R Q8g7+ Qe7 Bd2 Bg3 Nc5+ Kd8 Ba6 B8b5 Ka3 Bf5 Nb3 Nd7 Rb7 Kc8 Be3 Bbd3 Bc4 Qd8 Bb5 Ndf6 Qf8 Beg4 Nc7 Bd1 Qg4 B1e2 N3d2 Bd7 Nc3 Be4 Bh6 Rg1 Qg5 Bef5 Bd3 Rb1 Qag8 Bc6 Bc4 Bb5 Nb3 Be3 N7d5 Rbe1 Rh7 Nd7 Qfg7 Bc1 Q8f7 Rgf1 Nb1 Kb7 Nf4 Qa8 Nd5 Nc6 Ka2 Rc8 Ka1 Nb4 Qfg8 Ka7 Q8f7 Kb8
1B1KQN2/2Q2Rb1/qp3B2/n6b/1n2b3/1k1B1qrN/pr3N1B/1q1rBRB1 b - - 0 1 illegal: No proof kernel
3N2Q1/bN1Nqpb1/2B2n2/K1BqRr1Q/2b1qR2/N1Nrr3/2Rpn1N1/2k5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Kf6 h4 Ke5 b4 Ke4 c5 g5 h6 a5 b6 d5 h5 d3 Kc3 f3 b5 g4 b7 a4 Kb4 d2 h7 Ke3 h6 a3 b6 g3 Ra2 g2 Rh4 f2 Rf4 d4 Rc2 a2 Ba3 Nd7 b8N a1Q b7 d3 Nc6 Bg7 b8N Qh4 Nd8 Qh2 c6 Nc5 c7 Ra6 Nd7 Rf6 Ka5 Ba6 c8N Na4 Nd6 Qh5+ Bc5+ Qd4 Na3 Rf5 N6b7 Qg6 Qa1 Nf6 Qd1 Re8 h8Q Re7 h7 Nc3 Qg8 Bc4 h8N Qh5 Ng6 Qf3 Nh3 g1B Ng5 Qe4 Bg2 f1Q Nh4 Qe1 Bf3 Re8 Bg2 Qe7 Bc6 Bf2 Ne4 Qh1 Qg1 d1R Qg6 Qg2 Qh5 Qf3 Ned6 Qfe4 Ndb5 Bg1 Rc1 Kd2 Ng2 Qed5 e4 Ne2 e5 Q4e4 e6 Bf2 Ra1 Bd4 Ra2+ Kc1 Nc3 d2 Ncb1 Rh1 Nc3 Rh3 Rb2 Rd3 Ra2 Be5 Rb2 Bb8 Ra2 Qed6 e7 Ba7 Rb2 Rf8 e8R Qde7 Qgh7 Rh8 Qg8 Rh6 Ra2 Rg6 Rb2 Rgg3 Ra2 Rge3 Rb2 Qed6 Re5 Qe7 Rc2#
Kbq5/3p1Q2/1QRb1nr1/1qNQ1n2/5pQ1/3QNq1B/b1Nk1r1R/B5nQ b - - 0 1 illegal: No possible last move, all moves rejected
Nb3N2/2B1BR1b/b3n3/1k1q1p1Q/8/1rBBr1Qn/1nR1pnB1/KnR4B b - - 0 1 illegal: No proof kernel
2R1B1rb/Bb1N2q1/Nr2RNnp/2r5/1p2NB1k/N5N1/K1nn3n/n2Q3Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 Kf6 Kc2 c5 Kb2 e5 g4 b5 f4 e4 a4 e3 a5 h6 g5+ Kf7 d6 b3 d5 e2 d7 e1N d6 h3 g6+ Kf6 a6 c4 g7 h2 a7 b4 Ra6 Nf3 Ne2 Nc6 Ng3 Be7 Na3 Qa5 d8B Be6 d7 Ncd4 Bb6 Rd8 a8Q Rb8 d8N Bc8 Ba7+ Rb6 Nb7 Nc2 Nc5 c3+ Kb1 b2 Ka2 b1N Bb5 Bf8 Be8 Ne7 Qe4 Ng6 g8N+ Kg7 Rg1 h1R Nf6 Nh2 Qee1 Rg8 Nfe4 Bb7 f6+ Kh7 f7 Nd2 f5 Bg7 f6 Bh8 Rg2 Rg1 Re2 Rg2 Qh1 Qa4 Ra5 Qd7 Na6 Rf2 Re1 Rf5 Rc5 Re5 Rc8 Rc5 Nd6 Qe7 Re6 Qf8 Nde4 Qg7 Qde1 Nh4 Qd1 Kg6 Nh5 Kf5 f8N Ng6 Nhg3+ Kf4 Nf2 Kg5 f7 Kh4 Nh7 Nd4 f8N c2 Bb5 Ne4 Bf4 Nd2 Nf6 c1N+ Kb2 Ncb3 Ka2 Na1 Be8 Ndc2 N8d7 Rbc6 N2e4 Rd6 Qhe1 Rb6 Qh1
2R2rn1/R1p2R1N/rRp1N3/2K2bR1/1r2r1Qb/bB1k3Q/1R2qB1r/2n4N b - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 c4 gxh4 a4 Bg7 axb5 Bh6 c5 Bf8 c6 dxc6 Ke2 Kf7 Ke3 Kf6 f4 a5 b4 e5 d4 h5 g4 h3 g5+ Kf7 b6 h4 b5 a4 f6 Ke6 f7 Kf5 d5 e4 Kd4 a3 g6 e3 b7 e2 g7 e1B d6 h2 b6 a2 d7 h3 Qg4+ Kf6 f5 Bg3 Nd2 Bf4 Ne4+ Ke7 Nf2 Kd6 f6 Bh6 Bc4 Na6 b8Q Nb4 b7 Bd2 Bb3 Bg5 Nf3 Bh4 Be3 Rh5 Rhb1 h1R Rb2 h2 Ng5 Qe8 d8N Nd3 Nh7 Re5 Ne6 Rb1 Nh1 Nc1 Bf2 Bd7 Qc8 Re4+ Kc3 Ke5 b8R Bc5 f8R Ba3 Rb6 Qh5 Qh3 Qe2 f7 Ra6 Re8 Ra8 f8R Ra6 Ng3 h1R Rf7 Rh2 Nh1 Ra8 Nf4+ Be6 Ref8 Bf5 Ne6 Rd4 Qd7 Ke4 Rc8 Ra6 Qe7 Rd8 Qg5 Rf8 Qh5 Nd3 Kc4 Re1 Rc1 a1R Rcc2 Rab1 Rc3 Nh6 g8R Nc1+ Rd3 Ra7 Rg5 Ra6 Rb7 Ng8 Ra7 Rb6 Qg6 Rb4+ Kc5 Ra1 Rdg3 Ra2 Be3 Kd3 Bf2+ Qf3 Qh5 Ree4 Q5g4 Ra1 Be3 Qe2 Rg1 Na2 Rgb1 Nc1 Bf2+ Bg3 Qf1 Bh4 Ba4 Rbd4+ Rb4 Bb2 Rb6 Rb4 Bb3 Ra6 Qfg2 Ba3 Rb2 Nf6 Qf1 Ng8 Qfh3+
nn4K1/b2p1p1r/1RN3NR/1BQ3r1/1b1RqnR1/1b4QR/Rbk5/3r1NB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 g5 h4 a5 c4 d3 c5 f3 b6 g4 b7 d2 h6 a4 h7 g3 h5 g2 h6 f2 c6 a3 c7 a2 Qb3+ Kc5 Rh3 d1R Nd2 Be7 Ngf3 g1B Nd4 Na6 b8R Qf8 Rb4 Bb7 c8Q+ Nc7 Qg3 Nf6 b3 Rg8 h8N Ra5 h7 Re1 Ng6 Nh5 h8R Bd5 Rh6 Bc4 Ra4 Rg7 b4+ Kb6+ b5 Kc5 b6 Qe8 b7 Rd1 b8R Bb3 Kf5 Rh7 e5 Kd5 e6 Na8 Rc4 Bb4 e7 Rb5 Be2 f1N Bd3 Nh2 Nf1 Nf3 Be3 Ne5 Be2 Qd8 e8R Nc6 Re4 Qe8 Rg4 Nf4 Kf6 Ke4 Qc7 Rg5 Qa5 Rh8 Kg7 Bf2 Rb5 Nb8 Qc7 Qe6 Rb7 Rh7+ Kg8 Qe5 Qb6 Bg1 Nc6+ Qd4 Rc5 Qe5 Bb5 Qe7 Rc4+ Kd3 Re4+ Kc2 Bc5 Bd4 Qa7 Bb2 Bg1 Qe6 Rd4 Qe5 Rd6 Qe4 Qae3 Bd4 Rd5 Ba7 Rb6 Qf5 Qe7 Qd3 Rd4 Qe4 Rb1 a1B Rb2+ Kc1 Ra2 Bb2 Qe5 Kc2 Qc5+
q4nNN/1B3NB1/2N1pbbr/2QRRp1n/1b2rB2/N2k2q1/5R2/1KB2bb1 b - - 0 1 illegal: No proof kernel
1q1qrNRK/p4qQ1/1br3q1/Rb4Bp/nk1B3q/5B1N/R3nN2/4N1NR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kc4 b4 c5 g4 f5 g5 h3 d6 f3 d5 f4 b6 h2 d7 f2 g6 f3 b7 Qb6 d8R Rh6 d6 Bd7 g7 Be7 b5 Bf8 e4+ Kb4 Ra2 c4 Nd2 c3 Bg2 Bc6 d7 Qe3 b6 Na6 b8N f1Q b7 f2 Qg4 c2 Ndf3 Qc4 Ne1 f1Q Bf3 Qef2 Bg5 Ne7 g8R Ng6+ Kf6 c1Q e5 Qce3 e6 Qed2 e7 Qfd3 e8N Qfe2 Nd6 Qe8 Ne4 Bb5 Nf2 Bc5 Kg7 Nf4 Qg2 Rf6 Kh8 Qcf7 Rc8 Rc6 d8N Bb6 Ne6 Qef8 Nd7 Ne2 b8B Nc5 Nf4 Qdg6 Be5 Na4 Bd4 Rb8 Rc7 Re8 N4h3 Qdf4 Rc8 Qb8 Qg3 Qfd6 Nf8 Qde7 Qe5 Qd8 Qg7 Rce6 Nf4 Bd3 Rc5 Rc6 Ra5 Nc1 Nge2 Bb5 Rf1 h1Q Rg1 Qh2 Rh1 Qh4 Ng1 Ne2 N4h3
R1r5/r2RR3/1q2Qn2/4b1r1/1RQR1Nbb/b1Q5/BRKBpkp1/qN5n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 Kf7 Kd2 Kf6 b4 Kg5 f4+ Kh4 h3 Kg3 d6 c5 f5 g5 d5 a5 b6 e5 h4 c4 f6 e3+ Kc2 e4 b5 e2 f7 e1B h5 a4 h6 e3 h7 a3 b7 a2 b6 c3 d7 Bd6 f8Q Be5 d6 Nh6 Qg8 Nf5 Qe2 Ra7 Qec4 Kf2 Ne2 g3 Nf4 g4 Bd2 g2 Qge6 g1R Be2 Qf6 d8R Nd7 b8R g3 b7 Rf8 Bf3 e2 h8Q Qh6 Rh5 Nf6 d7 Rg8 Bd5 g2 Re8 Rg5 d8R Ng3 Rd6 Nh1 Rh4 Rf1 Re7 Rg1 Qeg8 Bg4 Qe6 Rf1 Rdd7 Rg1 Kd3 c2 Qg7 c1B Kc2 Rf1 Rbd8 Bcb2 b8R Ba3 Rb2 Rg1 Ra8 Rf1 Nc3 Rg1 Rd1 a1Q Nb1 Ne8 Qf5 Qb6 Qe6 Nf6 Qh8 Rf1 Qhc8 Rg1 Qc3 Rf1 Q8c4 Qb3+ Kd3 Bad6 Qc5+ Kg3 Be3 Qaa2 Ng6 Qb6 Qc1 Qa1 Ba2 Bh5 Qc7 Rf4 Q1c3 Ba3 Kc2 Rc4 R1d5 Rc5 Rhb4 Bg4 Rdd4 Kf3 Qc8 Bh4 Bd2+ Kf2 Nf4 Rc6 Qa6 Rc8 Qac4
B2k1qbr/2NR4/2BNnQ2/1q3rNB/2R2nnK/BR2b2n/p4B1p/3r2N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 g4 f5 d4 c5 b4 a5 e4 a4 e5 f3 e6 h3 Kg3 h2 b6 a3 e7 c4 g5 f2 g6 f4+ Kh4 c3 b5 f3 g7 a2 b7 c2 b6 Bf5 d6 Bd3 d5 Nh6 g8B Ba6 Bb5+ Qd7 Nd2 f1R Ne4 f2 Qf3 Rh7 Qf6 Rd1 Ng5 f1N Bc6 Bc4 Ba3 Ng3 Rc1 Na6 b8N Ne2 b7 Nc5 Na6 Rh8 b8B Ne6 Ba7 Bb3 Bf2 Ng4 Rb1 Bc4 Rb3 c1Q Bh7 Bg7 Be4 Qf4 Bg2 Rc8 Ba8 Qb5 Nc7+ Kd7 Be4 Rcf8 e8B+ Kc8 Bec6 Qf5 Bf3 N2f4 Be2 Bh6 d7+ Kb8 d8N Kc8 d6 Qfc5 Qg6 Rf5 Qf6 Bd5 Nb7 Qcb4 N1h3 Q4c5 Re1 h1N Ng1 Qcb4 Ba7 Nhf2 Bd4 N2h3 Bf2 Nd8 Bf3 Bg8 Re4 Nde6 d7+ Kb8 Rc4 Qf8 Nd5 Ne2 Nd6 N2f4 Ne3 Kc7 d8R Rb1 Re8 Rd1 Re7+ Kd8 Nh7 Ne2 Nd5 Be3 Ng5 N2f4 Kg3 Qa5 Be2 Qb5 Nc7 h4+ Kf3 Nh6 Bg3 Nf2 Be8 h3 Bec6 h2 Bh4 Ra1 Kg3 N2h3 Bh5 Nf7 Kg4 Rd1 Bf2 Nh6+ Kh4 Ng4 Rd7#
K1N5/3B2br/1Qr1Bq1R/4n3/N3b3/1pR1n1BB/npR1N1Nq/nB3kq1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 c5 a4 b5 d6 h5 a5 f3 a6 h4 d7 h3 d5 f6 a7 f2 d6 h2 g6 b3 g7 b4 g5 b2 g6 b3 Bf4 Ba6 Bh3 f1N Nc3 Be7 Rc1 Rh6 Bg3 Nc6 Rc2 Qf8 d8R Nb4 d7 Ne3 Rc8 Rh7 d8N Nh6 g8B+ Nf7 Ne6 Ne5 g7 Bb7+ Rc6 Na2 Qd8 Rc8 a8B Bd6 Qb6 f5+ Kf4 Qf6 Na4+ Nc3 Bf7 Bf8 g8N Bg7 Rc7 Be4 Ne7 N3g4 e3 Kd3 Ne2 c4 Rc6 Rc7 Nc8 Na2 Rhc1 h1Q Bb7 Bf3 e4 Qh2 Rc3+ Kd2 R1c2+ Kd1 Ba6 Ne3 Bg8 N5g4 e5 Be4 N6d4 Nb4 e6 Ne5 e7 Na2 Re6 Rc6 e8B Nb4 Bd7 Na2 Rc1+ Kd2 Rd6 Nc2 Bge6 Na1 R1c2+ Kd1 Re3 c3 Bd3 Bh1 Rf3 Bg2 Ke3 f4+ Ke4 Bh1 Kd5 Bg2 Be4 Bh1 Rf2 Ke1 Nf5 f3 Rg2+ f2 Nh4 Kf1 Bd3 Rc4 Rc6 Rc5+ Kd6 Rc4 Kc7 Rc5 Kb8 Rc4 Rd2 c2 Ka8 c1Q Bb1 Rc5 Rc7 Rc6 Rc2 Qe3 Bf4 Qc5 Rg6+ Bg2 Bg3 Qe3 Bhf5 Be4 Rh6 Qeg5 Bf4 Qgg1 Bh3+ Ke1 Rc3 f1N Rc2 Ne3 Ng2+ Kf2 Bg3+ Kf1 Bd5 Rd6 R7c3 Rc6 B5e6
1BQ2B1Q/7K/2Brq3/1b2N3/n2brb1p/1R1q1B1p/1nQrBbRk/2N1B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 c4 b6 c3 b5 h3 b7 a4 b6 f3 g5 c2 g6 a3 g7 f6 Ra2 h4 Nc3 f2 Bd2 c1B Nf3 Nc6 Qc2 Ne5 Be1 Nc4 Ne5 Ne7 g8B Bd7 b8B+ Qc7 e3 Rh6 b7 Bb5 Ne2 Nc8 Kf5 Nb2 e4 Bf4 Nc1 Ra4 Be2 f1Q Ba7 Rg6 b8B Nb6 Bf7 Rg2 Bfh5 Qf3 Rf1 Qd3 Rf3 Rf2 Kg6 f5 Re3 Bg7 Bef3 Rd2 Kh7 Ra6 Be2 N6a4 Rg3 Rb6 Bhf3 Rc6 Rg2 Rc4 Ra1 a2 Rb1 a1B Bb6 Nd1 Rb3 Ndb2 B8a7 Qc6 Bc5+ Kc7 Bf8 Qe6 Nc6 Kd7 d6 Rb4 d5 Bd4 e5 Bf2 Bb8 Re4 Na5 Nc4 Nc6 Bad4 Na5 Ncb2 Nc4 Kc8 d7+ Kd8 Ba7 Kc7 d6+ Kc6 d8Q Kd5 d7 Bg5 Bg7 f4 Qc8 Bh6 Bg4 f3 Bf8 Bf4 Bh5 Bg1 Bg4 f2 Bb8 f1R Bgf3 Bgf2 d8Q+ Qd6 Qf6 Qe6 Qh8 Rg1 Rg8 Rg6 Rg7 Qg4 Rg8 Rd6 e6 Qf5+ Rg6 Qe5 e7 Qf6 Nb6+ Ke5 Nd7+ Kf5 Rg2 Qe6 Rh2 Kg5 e8B Kf5 Ne5 Kg5 Bh1 Kf5 Bc6 Kg5 Nf3+ Kg4 Ne5+ Kg3 Bhf3 Rd8 Rh1 Rd6 Rg1+ Kh2 Rg2+
K1N1NRb1/R6R/B5R1/b1nN1qBB/3bkp2/1rp2r2/2QqN3/b1R1qn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 d4 g5 h4 c5 e4 f5 e5+ Kc7 d6+ Kd7 b6 Kc6 b7 Kd5 h5 a5 e6 a4 b5 c4 d7 f3 Ke3 a3 b6 g3 h6 g4 h7 a2 e7 f2 e8B g2 Ne2 g1Q Bh5 g3 Nbc3+ Kc6 d5+ Kd6 Kd4 g2 Bg5 f4 Qc2 Na6 b8R Ne7 b7 Qa5 d8N Qh2 Ne6 g1B Ng7 Be6 Re8 Qh3 b8N Qf5 Nc6 Nc5 Na7 Rb8 Rc1 Rb1 Ra8 a1B Rh3 Qb4 Rg3 Rb3 Rg2 Bg8 Ne8+ Kd7 d6 Ke6 d7 Nd5 d8R Ne3 Rd7 Be7 Rg4 Bd8 Nc8 Bc7 Ra7 Ba5 Bg2 f1Q Bb7 Qe1 Ba6 Qa3 Rf7 Qb2 Rf8 Qa2 Qb2 Bf2 Nd5 c3 Qc2 Nf1+ Kc4 Ke5 Rg3 Bb4 Kb5 Bd4 Kc6 Qb2 Kc7 Qa2 Kb8 Ba5+ Ka8 Qb2 Qb1 Qbd2 Qa2 Ke4 Rg4 Bf7 Rg1 Rg8 h8R Rg7 Rh7 Bg8 Bh4 Rg3 Qc2+ Rd3 Be7 Be5 Rg6 Bd4 Qd1 Rh3 Bg5 Rf3 Qc2+
2RB2Q1/B5q1/1R3RN1/1Knr1N1B/1B2pR1n/1nb5/p1q1kN1B/1brr1n2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 Kd6 d4 a5 f4 h5 g4 c5 f5 e5 g5 c4 b6 e3 b7 c3 Kd3 c2 Kc4 h3 f6 a4 g6 h2 b5 a3 b6 e4 f7 a2 g7 e2 Nf3 e1Q Nc3 h4 Be2 h3 Ne5 Na6 b8B+ Qc7+ Kb5 Be7 f8R Qd2 b7 Bf6 Ba7 Ne7 g8N Ng6 b8B Nh4 Qg1 Rh5 Nh6 Nc5 Ba3 c1N Ng6 Nb3 Rf1 Qc2 Nd1 Be5 R1f4 Ba6+ Kb4 Bh8 Nf2 Bd3 Qg3 Re5 Rb1 h1N Bh5 h2 Qg1 Ng3 R8f6+ Re6 Qg2 h1R Qg1 Nf1 Nf5+ Kd7 d6 Kc6 d7 Kd5 d8R+ Rd6 Rc8 Qg7 Bb6 Ra5 B6a7 Qc1 Rb2 Bb1 Qg4 Qc2 Qg5 Ra4+ Kb5 Rc4 Bb4 Rg1 Rg4 Rd7 Bh2 Rc3 Rf4 Rd3 Kb6 Kc4 d5 Rd1 d6 Rd8 d7 Rd5 Ng4 Kd3 Kc6 Ke2 Kb5 Re8 d8B Rd1 Qh6 Re5 Qh7 Red5 Qg8 Qh6 Re6 Bc3 Rf6 Qg7 Nf2+ Nf3 Rg4 Rc1 Bba5 Na1 Kc6 Ng3 Rb4 Nh4 Rb6 Nab3 Bb4 Rgd1 Kb5 Nf1 Rf4+
k1n3N1/2Q2Qr1/N2R2b1/1q1b3B/Nn1pb3/2B1RQNK/rp1q1NNb/6r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 b5 f4 g5 Kf2 e5 Kg2 d5 a4 Kd7 c4 Kc6 a5 Kb7 h6 g4 f6 g3 h7 e4 f7 e3 c5 e2 c6+ Ka7 f5 e1Q f6 b3 c7 d3 a6 d2 h5 d4 h6 b2 Qf3 d1B Nc3 b1B Be2 b4 Rh3 b3 Ne4 b2 Bd2 Bb3 Bc3 Bg4 c8Q Bc5 f8N Qd5 f7 Bd7 Qc7+ Qb7 Ne6 Bba4 f8Q Bd6 Nf2 Bd3 Nc5 Nf6 Qf7 Rf8 h8N Be8 h7 Rg8 Ng6 Bad7 h8N Rg7 Na4 Be6 Nf4 Qd2 Nhg6 Be4 Ne7 B6d5 Ng8 Nfd7 Rh6 Nc6 Re1 Nb4 Kh3 Nb6 Ng2 Be5 Rd6 Nc8 Bd1 Bf4 Re3 Be5 Ne2 Bf4 Ne1 g2 Ng3 g1R Ng2 Be5 Q7f5 Bg6 Qff7 Rb8 Be2 Ka8 a7 Qc6 Q3f5 Qb5 Bh5 Rb6 Qf3 Ra6 Ngh1 Bh7 Nc5 Ra2 Na4 Bh2 Ng3 Bhg6 Qb6 Ne7 Qa5 Kb7 a8N Kb8 Nc7 Nc8 Na6+ Ka8 Qac7
Q1Bn4/R1B2r2/n2q2qN/K6N/pRq2b1N/3bbBN1/4p1R1/1rBBk1q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 c4 Ke5 b4 Kf4 c5 a5 c6 d5 g6 e5 c7 h5 b6 d3 Kc3+ e3 b5 d2 g7 e4 g5 e2 b7 e1B g6 h4 b6 e3 Nf3 h3 Be2 h2 Nh4 Qd6 Rg1 h1Q Qa4+ Qe4 Rg2 d1Q+ Nd2 Nh6 g8N Na6 b8R Bf5 c8B Rh7 b7 Nf7 g7 Qg6 Nh6 Bc5 g8B Nd8 Bf3 d4+ Kc4 d3+ Kb5 e2 Nf1+ d2 Bb3 Qd4 Ng3 Rf7 Qa3 Qc2 Qa2 Qce4 Bd1 Qdd6 Qd5 Bd4 Ra4 Ra7 Ra8 Qee6 Rb4 a4 b8B Rab7+ Ka5 Bd3 Bc7 Rb6 Qb7 Qc4 Ra7 Be3 Qa8 Rb7 N4f5 Rb6 Ng7 Rb8 Bb3 d1Q N7h5+ Kg5 Bc2 B1d2 Bb3 Qg1 Bd1 Kh4 Bfb7 Qdd4 f4 Qdf6 f5 Qd6 f6 Bf4 Bd5 Bde3 Bf3 Qa2 Re4 Rb1 Rb4 Qb3 Ba3 Qc4 Bc1 Re7 f7 Rd7 f8N Rf7 Nh7 Rb2 Ng5 Bd4 Ne6 Bde3 Ngf5+ Kh3 Nc5 Rb1 Rg5 Kh2 Ne4 Kh3 Bg4+ Kg2 Nh4+ Kf1 Bf3 Ke1 Rg2 Qf1 Neg3 Qf2 Rb2 Qg1 Rb4
1nQKN1R1/1rBQ2r1/bBk2nBq/3p2pq/N1B3nb/R2Bb3/nQ6/7B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 f5 Kg3 g5 c4 a5 b4 d3 h4 d2 e4 d6 h5 Kd7 e6+ Kc7 e5 a4 c5 a3 e7 a2 e8B Ba6 e6 Be7 c6 Qc8 b6+ Kd8 h6 Bf8 c7+ Ke7 b7 Nf6 h7 Rg8 h8Q Rg7 b5 Rf7 b6 Nfd7 Na3 Rg7 Bd3 Ra7 Nb5 Ne5 Ne2 Qd8 c8B Qc7 Bc6 Ned7 Nec3 Nf6 Na4 Qd7 Rh7 Qe8 Bh1 Qh5 Nc7 d5 Ne8 Kd8 Qg8 Be7 Rh8 Bb4 Qf8 Bc5 Rg8 Be3 Qb3 d1Q Qb2 Qh6 Qf7 Qe2 Bd2 Qd1 Ba5 f4+ Kg2 f3+ Kg3 f2 Bd7 Rg6 B7b5 Rg7 Bbc4 Qe2 e7+ Kd7 Bf3 Kc6 Bh1 Nbd7 b8Q Rb7 Qd8 Nb8 Qc8+ Rc7 Re1 a1N b7 Nc2 Bb6 Nb4 Ra1 Qd1 Ra3 f1N+ Kg2 Nh2 Kg3 Nbd7 b8B Na2 Qd8 Ra7 B8c7 Rb7 Qc8 Qe2 Nd6 Qd1 e8B Qe2 Qe7 Qd1 Bh5 Nb8 Ne8 Qe2 Bhg6 Bf2+ Kg2 g3 Qf7 Qeh5 Qe7 Nhg4 Kf3 Be1 Qed8 Nf2+ Ke3 g2 Kd4 g1B Ke5 N2g4+ Ke6 Be3 Qe7 Bb4 Qf7 Bbd2 Ke7 Be1 Kd8 Bh4 Qfd7+
q4Bbn/BN1B3R/BnQ4Q/2p3b1/Q1R1K3/1r2pNkn/4B3/1rqb1B1b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 Kd6 a4 Ke5 f4+ Kf5 g4+ Kg6 d4 b5 a5 h5 a6 e5 a7 b3 d6 b2 d5 b4 d7 b3 d6 h4 Nf3 h3 Nbd2 b1N Nc4 h2 Ra4 b2 Na5 Nd2 Nb7 b1B Rc4 Be7 Qa4 Rh3 Bb2 c6 Bd4 Ba2 Be2 Qa5 d8Q Nd7 Qb6 Rb8 a8B Nh6 Qc5 Nb6 d7 Rg3 d8Q Nf7 Qf8 Nh8 Qcb5 Bb3 Qd5 Be6 f5+ Kh7 f6 Kg6 f7 Bd1 Qc5 Bf6 Qfd6 Qa7 f8B Bg8 Nd8 Rg1 Bb7 Qa8 Ba6 Rg3 Nb7 Rg1 Ne1 Nf3 Qcb5 Rg3 Bc5 Ng1+ Nf3 Nh3 Bd4 Nc8 Ba7 c5 Qbd7 Nb6 Q7c6 Kf7 Bf1 Be7 Qh6 Bd8 Kd2 e3+ Kd3 e2 Ke4 e1Q+ Be2 Qc3 Bf1 Qc1 Be2 Be7 Bf1 Bd6 g6+ Kf6 g5+ Ke6 Ng1 Rb3 g7+ Kf7 g6+ Ke6 Nf3 Rb1 Kd3 Kf5 Be2 Be7 Bf1 Bh7 g8B Bg5 Bd5 Bg8 g7 Bf4 Bf7 Kg4 Be6+ Kg3 Ke4 Bg5 Bd7 Rb3 Kf5 e4 Be2 e3 Ke4 Bf7 g8B Be6 Bh7 Bg8 Bhf5 Nf4 Bh3 Rb1 Rf1 h1B Rf2 Rb3 Bhf1 Nh3 Rh2 Rb1 Bg4 Rd8 Be6 Rd3 Bd7 Rdb3 Qhe6 Nf4 Rh7 Nh3 Qh6
1N1QQQr1/q7/2n3nQ/1p1N1p2/qBkn4/Q6Q/NR2rb1R/2KBrn1b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 a4 Kd6 d4 g5 Kd2 f5 e4 c5 a5 b5 e5+ Ke7 h6 f3 h7 c4 a6 b3 e6 Kd6 a7 f2 h5 b2 e7 g4 e8Q g3 h6 g2 Qf3 Ne7 Qh3 Ng8 Be2 f1Q Ra2 Qf2 Rh2 Bd7 Nc3 b1N+ Kc2 Bg7 Rb2 Nc6 Na2 c3 Bd2 Nge7 Kc1 c2 Bd1 Rg8 h8Q Ng6 h7 Qa5 Ne2 g1R Nf4 Re1 Bc3 Rc8 a8Q Qa4 Ba5 Nd2 Bb4+ Kc7 d6+ Kb6 d5 Nf1 Qh6 Bd4 Q8g7 Qg1 h8Q Bf2 Qgf8 Be6 d7 Rd8 d6 Bd5 Qee5 Re8 d8N Bh1 d7 Re6 Qc3 R6e2 Qhh3 Qa7 Qa3 Qg4 Nh5 Qc4 Qhh6 Qb3 Nf6 Qba4 Bd2 Nb4 Qe8 Kc5 Nc6 Kc4 Nb8 Nc6 d8Q Q4a5 Qaf8 Qb7 Qa6 Qa7 Nd5 Qb4 Qaa3 Qba5 Rb3 Qa4 Kb2 c1N Kb1 Qe7 Rb2 Qea7 Bc3 Nb3 Bb4 Nbd4 Kc1
2r2B2/1K1R1nQ1/R1pbB3/N4n1N/4BNRb/qb6/n1BN1p2/2brBk1q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 b4+ Kd6 d4 a5 g4 h5 d5 f3 g6 h4 g7 h3 g5 f2 b6 h2 g6 c3 b5 Kc5 b7 Kc4 d6 a4 b6 a3 d7 f6 Qd4+ Kb5 Kd5 c2 e4+ Ka5 e5 f5 e6 a2 e7 f4 e8B f3 Ba3 c1B Ne2 Kb5 Nd2 Ra4 Bg2 f1N Nf4 Ng3 Rg1 Qe7 d8R+ Nc6 b8N h1Q b7 Nh6 g8N Ngf5 g7 Nf7 Nf6 f2 g8B Rb4 Rd7 Rb1 N6h5 Qb4 Qb2 Bd6 Qg7 Qa4 Bb4 Qa3 Bh7 Rf8 Ba5 Rg8 Be4 Nb4+ Ke6 Rh8 Nc6 Rf8 b8B Ba6 Ne5 c6 Rg4 Kc5 Bg6 Kd4 Ba7+ Kc3 Bc5 Bb5 Bc2 Ba4 Be4 Bb3+ Nec4+ Ne5 Bef7 Rc8 Bd5 Kc2 Be4+ Kd1 Bh7 Ke1 Bhg6 Bb8 Bf8 Bd6 Bg8 Nf7 Bc2 Nh4 Bge4 Nf5 Rb7 Bb2 Kd7 Rd1 Ra7 Bc1 Rc7 Nd8 Be6 Nf7 Ra7 Be7 Ra6 Bh4 Rb1 a1B Rb2 Re8 Kc7 Na2 Kb7 Rc8 Rb1 Bab2 Bc3 Ba1 Na5 Bab2 Bcb4 Be5 Rb2 Bd6 Bc3 Bd5 Rb5 Bb3 Rd5 Bc7 Rd7 Bd6 Nb1+ Kf1 Bb4 Ng5 Be1 Nf7 Nd2+
1RQ1q3/K2b3B/1Qp1r2r/R1N1qqQ1/1Q3nkb/1QpqRN2/2b3n1/3QB3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 Ke2 Kd7 Ke3 a5 Kd4 h5 Kc5 h3 g4 h4 f4 c3 b4 h2 d4 a4 f6 Ke6 f7 a3 f5+ Kf6 b6 c6 b5 a2 d5 e5+ d6 e4 b7 h3 b6 e3 Bd2 Kg5 f6 Rh6 Be1 e2 Nd2 Be7 f8Q Qe8 f7 Bd7 Nb3 Nf6 Nf3+ Kf4 g5 Nd5 g6 Ne3 g7 Ng2 g8Q Bh4 Rg1 h1Q Qfg7 h2 f8Q+ Qf7 Qd8 Qe8 Qc8 Ra4 Qgd5 Re4 Qe7 Kg4 Qeg5+ Kh3 Q5d4 Ree6 Qb4 Na6+ Kd4 Qh5 b8R Qe8 b7 Nc7 Nc5 Nd5 Kc4 Nf4 Qbb3 Qh5 Kb4 Qg4 Ka5 Qf5 Ka6 Qe5 Ka7 Qf5 Bf2 e1Q Bd3 Qee5 Re1 Qf1 Re3 h1B Be1 Qe2 Be4 Qd3 Qb4 Qf7 Bh7 Qe8 Ra8 Qef5 b8Q Qe5 Rb1 Qef5 Q8b5 a1Q+ Q5a4 Qb2 Qab3 Qbc2 Ra1 Qe5 Rb8 Qdf5 Ra5 Qcd3 Qf6 Kg4 Qfd8 Qc2 Qdb6 Qcd3 Qd4 Qde4 Ra4 Ng6 Re2 Ne3 Nd2 Bf3 Ra3 Ng2 Qdb4 Qc4 Ra1 Be4 Nf3 Bc2 Ra5 Qce4 Qca6 Bc8 d7 Qc4 d8Q Bd7 Qac8 N6f4 Re3 Qcd3 Qg5+
4BR2/1n1Kbq1p/1r1RN1R1/q3B1pk/1R2B1b1/bn1N4/Q1Bn1B2/1n1N3r b - - 0 1 illegal: No proof kernel
2qqrn1K/1rR2p1B/8/1NNBQrNQ/1RN2n1k/b1p1q1N1/8/q1BbN3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 b4 a5 d4 h5 g4 a4 e4 c4 b6 c3 b7 a3 d6 h3 d5 h2 d7 h4 d6 a2 b5 h3 b6 Ra4 Ne2 Rh5 Nd2 f3 Bg2 f2 Nc4+ Kh4+ g5 f1R Ng3 Rh8 g6 Nh6 g7 Re1 g8B Rg1 Bh7 Na6 b8Q Ng8 b7 Qc7 d8N Be7 Nc6 Nf6 Nd4 Qd8 d7 Qg8 d8N Qf8 N8e6 Nb4 Ng5 Qd8 Nc2 Bg4 Ne1 Rf1 Qc7 Bc5 b8N Ra7 Na6 Nbd5 Qa5 Ba3 Nc5 Bf3 Rb1 a1Q Rb7 Qc8 Rc7 Nd7+ Kf5 Rd8 e5 Nf8+ e6 Nf4 Kf6 Re8 Kg7 Rb7 e7 Bh5 Rg1 h1Q Bd5 h2 Kh8 Qf3 Qe2 h1Q Qe5 Qe3 Qb5 Rd8 e8N Bd1 Ned6 Re8 Rg2 Qhh3 Rb2 Qd8 Rb4 Qhc8 Qa5 Ne2 Nb5 Rf5 Qb6 Nf4 Qh6+ Kg4 Qg6 Kh4 Qh5+
kr2NBq1/2bp2R1/1Q2N1K1/1N1q3B/N6B/nrp2B2/2nnR1bb/1Bb3R1 b - - 0 1 illegal: No proof kernel
N2R4/3p1n1Q/b2q3p/1k4nK/1n2R1RQ/4Q1rN/1bqrRRrB/1BR1n3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 a5 Kf3 e5 Kg4 e4 b4 d3 c4 e3 f4 d2 c5 h3 f6 h6 c6 h2 f5 e2 f7+ Ke7 b6 Kd6 b5 Kc5 c7 e1R f6 a4 b7 a3 b6 a2 Bd3 Re6 Kh5 Na6 b8R Re1 g4 Bd6 f8R Nb4 b7 Re3 g5 Qe7 f7 Rg3 g6 Qe1 g7 Nc6 Qc2+ Kb6 Na3 Qe4 Nb5 Nge7 g8R d1Q+ Rg4 Nd5 Rd8 Ba3 f8R Ne5 Nh3 Nf7 Bf4 Bb2 Rc1 a1N Re1 h1N Re2 Nb4 Qc5+ Ka6 Bb1 Qd6 Qe3 Nac2 Rde8 Qed3 Re4 Nf2 Rd8 Rg2 Bh2 Rg8 Rf8 Ra7 Ra8 Qd2 b8Q Ne1 Rd8 Bb7 c8Q Qc2 Nc7+ Ka5 Rf8 Ba6 Qd8 Rg6 Qh4 Rg7 Rgf4 R7g3 Rg4 Rb7 Qbd8 Rb5+ Qdg5 Rd5 Rad8 Ka4 Na8 Rd2 Qg6 Kb5 Ng5 Nh3 Qh7 Ng1 Nh3 Ngf3 Qg7 N3g5 Qh7 Ne5 Rf6 Nef7 Rff2
BQ1K2k1/B2p1RNn/p3q3/2N2bQB/1B1B1n2/2q3r1/n1B2Rr1/q3bnR1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 e5 Ke4 h5 Kd5 h3 c4 e4 f4 a6 g4 e3 b4 h2 g5 h4 f6 d3 b6 d2 b7 h3 c5 e2 g6+ Ke8 c6 e1N g7 Kf7 b5 Qa5 f5 Rh4 c7 Rb4 Bd3 Ng2 Nf3 Be7 Bb2 Rb3 Qc1 d1N Bc2 Re3 Rf1 h1Q Nc3 h2 Ng5+ Ke8 Nce4 Nh4 Bd4 Qe1 b6 Qg2 Ne6 Kf7 Rf2 Qg6 N4c5 Rc3 Qg5 Nc6 b8Q Rg3 b7 Qc3 Rc1 Bd8 Kd6 Ne3 Rg1 h1Q Rgf1 Nh6 Rg1 Kg8 f7+ Kh7 f8B Nhg4 f6 Nf1 f7 Nf6 Qe3 Ng2 Qg5 Nf4 g8B+ Kh8 Ng7 Nb4 Be7 Na2 f8R Nh7+ Rf6 Qge4 Bf7 Qe2 Be8 Kg8 Bh5 Qee1 Bf8 Qea1 Rf5 Qh3 Rf7 Bf6 Be7 Qg4 Bf8 Be5+ Ke7 Qe6+ Kd8 Bd6 Ne4 Bb4 Bd6 Ba5 Bb4 Rg2 Nc5 Rg3 Qa7 Rg2 b8B Bb7 Qb6 Be4 c8B Bf5 Ba7 Rb8 Qc7 Rb6 Bb7 Rd6 Be3 Rd3 Bd4 Rdg3 Ba8 Qcc4 Ba3 Be1 Bb4 Qcc3 Qb8
qNrr1k1B/2p1nnn1/1N2b2q/1Nq4p/2Rb4/R6N/BR4QN/1Nn2KQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 h5 e4 a5 g4 f5 b4 a4 d6 f3 d5 h3 d7+ Kf7 e5 h2 b6 a3 b7 f4 d6 a2 e6+ Kg7 g5 Na6 b8N Rh7 b5 Rh6 b6 Rh8 g6 Bb7 e7 Bc8 b7 Nb4 Bc4 f2+ Kf1 Nd5 Nh3 Nh6 e8N+ Kg8 g7 Nf7 Ba3 Qf6 d8N Qh6 d7 Bc5 Nd6 Ne7 Ne6 Bd4 d8N Bd7 Neg5 Be6 Nd7 Rc8 Nc6 Rd8 Rg1 h1Q b8R Qd5 Nb5 Qc5 Rg4 Rc8 Ke2 f1N Bb2 Ne3 Qg1 N3f5 Nb6 f3+ Kf1 f2 Nf3 Rd8 Nh2 Rc8 Kg2 f1N Rb7 N1g3 Nb8 Ne2 Kf1 Nc1 Bd5 Bf6 Rc4 Bd4 Bc3 Ng5 Qg2 Kf7 Qg1 Rhd8 Bb2 Ke8 Qg2 Nf7 g8Q+ Qf8 Q8g3 Qh6 Qg1 Kf8 Q3g2 Be3 Bh8 Bd4 Ra7 Ng7 Ra3 Be5 N1c3 Bd4 Rb1 a1Q Rb2 Qa2 Nb1 Qa1 Rg3 Qa8 Ra3 Be5 Rcc2 Bf6 Ba2 Bd4 Rc4
2QQ1br1/1bp4B/5B1p/4Kn1b/qB2BRR1/b5q1/1Q1NNnr1/BB2k1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 g4 f5+ Ke5 a5 d4 f3 d6 h6 d7 f2 g5 a4 g6 f4 g7 a3 d5 h3 b6 h2 d6 f3 b7 a2 b5 Ra7 e4+ Kb4 b6 Nf6 g8B Nd5 Bh7 Ra5 Bb2 Rg8 Bd3 f1Q Nd2 f2 Bb1 Qd3 Ne2 f1Q Rg1 h1B Rg4 Na6 b8Q Bb7 Qc8 Qh4 d8B Qg1 d7 Bf3 Bf6 Nc5 d8B Ne3 Bde7 Nf5 Qc2 Qd7 Qd3 Qe8 Qdd8 Qa4 Rf4 Bh5 Bd6 Bc6 b7 Qhg3 b8Q+ Bb7 Bc3+ Ka3 Bb4+ Kb2 Bde7 Rb5 Bg7 Ra5 Bef6 Nd3+ Ke6+ Qd4 e5 Rd5 Rh4 Qgf4 Bfe7 Bc6 Ba5+ Qb6 Bc2 Ng3 Rf1 a1B Bb1 Rd7 Rf2 Nf5 Rf3 Qe3 Rff4 Qbb3+ Kf6 Qg1 e6 Nf2 Qbb7 Rd3 Rhg4 Rg3 Be4 Rg2 Bc3+ Ka2 Ke5 Bb2 Bgf6 Ba3 Ba1 Qg3 Bd6 Bd5 e7 Bc6 Qb6 Bb7 Qd4 Bg7 Bb4 Bf8 Nf1 Kb3 Bb1 Qa8 e8B Qa7 Bc6 Qa4 Ba2+ Kc2 Nd2 Kd1 Bb1 Ke1 Bce4 Nh4 Qc3 Nf5 Qb2
bn4n1/q1p1BRb1/2NRNpB1/r4RB1/Q3KnR1/4N1B1/2rR3q/kr2r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 d4 h5 g4 a5 b4 f6 e4 h3 e5+ Kd7 e6+ Kd6 g5 h2 g6 h4 b6 h3 e7 a4 e8R a3 g7 a2 b5 Qd7 b7 Qf7 b6 Ra3+ Nc3 Rh4 Qa4 Bf5 Re2 Ne7 g8R Qe8 Rd2 Bb1 Rg4 Qh5 Ne2 Nd7 b8N Bg7 b7 Ng8 Nc6 Nb8 Bg2 Bd3 Nd1 Rc3 Bf1 Rc2 Ne3 Qh6 Rb1 a1Q Rb5 Rh5 Bg2 Bc4 Ke4 f3 Nf4 f2 Ne6 f1R Rg1 h1R Rc5 Nd7 b8B h2 Ba7 Re1 Bf1 Qa3 Bd3 Nb8 R1g3 Rg5 Rh3 Qh8 Rh7 Ba6 Bb6 Bb7 Ba5 Ba8 Bb6 Kd7 d6 Rhg1 d5 h1N Rb5 Qc5 Ba5 Qa7 Bc3 Rh5 Be5 Rgf1 Bg3 Nf2+ Kf3 Rfh1 Bg6 Nh3 Ke4 Nf4 Ra5 Kc8 d7+ Kb7 d8B Kb6 d6 Rb5 Nf8 Kc5 d7 Rh5 Rd6 Rf5 Be7 Rh5 Ra6 Rb1 d8R Rf5 R8d7 Rd5 Rh5 Qh7 Rf5 Qh2 Qa1 Kb5 Ra2 Rdc5 Ne6 Rd5 Ne5 Kb4 Nc6+ Kb3 Bd2 Ra5 Bc1 Rcc5 Rad2 Rc2 Qd4 Ka2 Qb4 Rb3 Qa4+ Kb1 Rd8 Rbb2 Rf8 Rb7 Rf7 Rb6 Qb5+ Ka1 Qa4+ Ra2 R2d3 Ne2 Nc4 Rb1 Bg5 Nf4+ Ne3 Nd5 Qb5 Rc2 Rd2 Nf4 Qa4+
1K1n2NQ/2pRb3/q2Bp1q1/1n6/q1BQ2B1/kq5r/B1rrbN1R/3NBB2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 h5 g4 e3 a4 e2 g6 e1Q g5 b3 f5 b2 a5 h4 a6 h3 g7 b4 f6 h2 f7 b3 a7 Qe2 g6 Bf5 Nh3 Nf6 g8B Bh6 f8B Qh5 g7 Qg5 Nc3 b1Q Nf2 Kd7 Kc5 b2 d4 Qg6 d6 Qd3 d5 b1Q Bd2 Qa6 Be1 Rh7 Qd4 Qb3 Ncd1 Bg5 Bf7 Qba4 g8B Nc6 Ra3 Rh5 Rd3 Bg4 Rd2 Rb8 a8B Rb2 Bb7 Qb8 Bc8+ Kd8 d7 Qbb3 Be6 Be2 Bg4 Ne8 Qh8 Qad3 Ba6 Rh3 Bc4 Nd6 B8e6 Rc2 Qd4 Na7 Bf7 Nab5 Kc6 Bf6 Bfe6 Nf7 Kb7 Bg5 Kb8 Bh4 Bg7 Bg5 Be5 Bh4 Bd6 Bf6 Rg1 h1R Rg2 Rg1 Rh2 Rg2 Bef5 e6 Be4 Qg3 Bed3 Qba3 Ba2 Be7 Bdc4 Qgb3 Be5 Bf8 Bg3 Ke7 d8N Kd7 d6 Be7 Nc6 Nd8 Be5 Qa6 Bf4 Qa3a4 Qh8 Bf6 Ne7 Bh4 Ng8 Kc6 d7 Kc5 Be5 Kb4 Rd4+ Ka3 Bd6+ Qab4 Rd3 Be7 Rd2 Rgg3 Rd4 Rd3 Rd5 Rdd2 Qd4 Nb7 d8Q Qba4 Qf8 Nd8 Qh6 Qb3 Qhh8 Qba4 Bf4 Qb1 Rd7 Qbb3 Bd6+
BN3b2/bbk1b1B1/Br1N2N1/nqr1N1b1/B2n2K1/6bN/p1Q2Rp1/1R1R4 b - - 0 1 illegal: No proof kernel
k1bbr3/bb2bB2/5b2/nNB1R2N/pQ6/1B2Np1N/1n3rR1/1q1B1RKB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kf2 g5 h4 a5 c4 d5 b4 Kd7 e4 Kc6 b5+ Kb7 b6 f5 e6 a3 h5 d4 e7 a4 e8N f4 h6 d3 e5 d2 h7 a2 e6 Ne7 c6+ Ka6 c5+ Qd3 b7 Ka7 c7 Qa6 c6 Bd7 c8B Ng6 c7 Qc6 e7 Qd6 Rh5 Qd3 Ba3 Ne5 Nc3 Nc4 Ng7 Nc6 e8B Qb1 b8N Be7 Nd5 Nb2 Qe1 d1B Ne3 Rf8 h8R Bf3 Na6 Na5 Rg8 Bb7 Nh3 g3+ Kg1 g2 Be2 g4 Bf7 Rb8 Rc5 Ka8 Re5 f3 Nh5 Re8 Bc5 Bf5 Bd1 Bd8 Kh2 g1B+ Kh1 g3 Qb4 Bf2 Bce6 g2+ Kh2 Rc8 Beb3 Bfh4 Kg1 Bhe7 Rg6 Rb8 c8B Bg4 Bf5 Rc8 Rg5 Rc6 Bd3 Bgc8 Bf1 Rd6 Rg7 Rd2 Rg6 Rf2 Nc7+ Kb8 Nb5 Ka8 Kh2 g1B+ Kh1 Qe4 Bg2 Qc2 Rc1 a1B Rg4 Qb1 Rg8 Bh2 Rgg5 Bf4 Kg1 Bg3 Bh1 Bf4 Re4 Bb8 Rg2 Ba7 Re6 Nbc4 Re4 Baf6 Re5 Nb2 Bdc2 Nc6 Rf1 Na5 Bd1
K2k1n2/1nR4p/1B5N/2Rr1R1R/1qB5/np1br2n/B1QR2nN/BNb3n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 c5 Ke3 b5 Ke4 e5 g4 h3 d4 h2 a4 b3 f4 b2 g5 c4 g6 c3 g7 b4 f6 c2 f7+ Kd7 a5 Qe8 f5 Kc7 d6+ Kd8 Kd5 e4 a6 e3 f6 e2 d7 e1N a7 Be7 f8R Ba6 f7 Bh4 Bc4 Be7 Nf3 Bd6 Ra5 Nh6 g8N Ng2 Rc5 Nf5 Nh6 Bf4 Be3 c1N Qc2 Nd6 Bf2 Ke7 d8R Qb5 Rc8 Ne2 Rc7+ Nd7 Rd8 Ng1 f8R Nb7 Rf5 Rc8 a8B Bc1 Be3 Qa5 Kc6 Re8 d5 Rb8 Ba2 b3 Bd4 Bd3 Bh8 Qb4 d6+ Ke6 Bc3 Nf8 d7 Ke7 Bg7 Qg4 Kb6 Qb4+ Ka7 Rc8 Nbd2 b1N Ba1 Na3 Nb1 Nd6 Bd5 Nb7 Rc3 Rb8 Bc4 Rc8 Rcc5 Rc6 Ka8 Rd6 Rb8 Rd5 d8B+ Kd7 Bb6 Re3 Rbc8 Ke7 R8c7+ Ke8 Rf4 Kd8 Rf5 Ne2 Rd1 h1N Rd2 Ng1 Nh2 Nf2 Rh5 Nfh3 Ra5 Rd6 Raf5 Rd5 Bb5 Re6 R3c5 Re3 Bc4
bBB5/2B1qN1n/2r1Brn1/n6Q/k4rr1/2B1RnN1/1p2RpKN/1Rb1N3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 a4 g5 h4 c5 d4 b5 e5 b3 h6 b4 h5 c4 e6+ Kc7 d6+ Kb6 d7 Ka5 d5 g4 d6 f3 h7 c3 h6 f4 e7 c2 e8N b2 Nd2 b1N Rh3 b3 Ng7 b2 Nf5 Ba6 Bc4 Na3 Ng3 Nc6 Be6 Nc4 Rb1 Nce7 Ndf1 Ng6 Nh2 Qe7 d8R Nf6 d7 Bb7 Re8 Rg8 h8B Ra6 h7 Bh6 d8B+ Rb6 Bg7 Ba8 h8N Nh7 Nf7 Kb4 a5 Ka4 a6 Na5 Kf1 f2 a7 Bg5 Bc8 Rf6 Ngf3 Bh6 Kg2 f1R Qe2 Bg5 Be3 c1R Bc7 Rcc6 Ne1 Rf3 Bd4 Bh6 Bc3 Bg5 Ne4 g3 B3e5 Rf1 Qh5 Rf3 Bb8 Bh6 Bec7 Rf2+ Kg1 g2 Re3 f3 Ng3 Rf4 Bc3 Rff6 Re2 Bc1 Nhf1 Rg7 Kh2 g1N+ Kh1 Ngf8 Nh2 Rg4 Re3 Ng6 Re2 Qd7 R8e3 Qe7 Be6 Rg2 Bc8 f2 Be6 Nf3 Bc8 Bb7 a8B Rgf4 Be6 Ba6 Bc8 Bd3 Be6 Be4 Bb7 Bd5 Bbc8 Be4 Nf5 Rgg4 Ng3 Rb6 Ng5 Ba8 Nf7 Rc6 Kg2
Qnq4r/r6R/3NbR1K/pBn1n3/k2b2RR/N1Q2n2/3BbR1p/1Q1bR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 h5 d4 a5 g4 c5 b4 c4 e5 c3 b6 c2 b7 h3 g5 h4 e6+ Kd6 g6 h2 e7 Nh6 e8Q h3 b5 Ra7 g7 Nf7 Ne2 Na6 b8Q+ Nc7 g8R Bg7 b6 Bf6 Qa8 Na6 b7 Kc7 d6+ Kb6 d7 Kb5 Be3 c1N d5 Nd3 d6 Ndc5 Ng3+ Kb4 Rg6 Bd4 Na3 Qc7 Rg1 h1N Rf6 Bc3 d8R h2 d7 Nf2 Qe5 Ng4 b8R+ Qb7+ Ne4 Ng5+ Kg2 f3+ Kg3 f2 Kf4 Bb2 Rg2 Bc3 Rg8 Bb2 d8R Be6 Qd3 Ka4 Bd2 Qc8 Rb7 Nb8 Re1 Ba1 Qb2 Ne5 Qbb1 Bb2 Be2 f1B Rh7 Bc3 Qg3 Bb2 Bc4 Be2 Rd4 Bd1 Nd6 Bc3 Rde4 Bd4 Qf3 Bd7 Qc3 Be6 Kg3 f4+ Kh4 f3 Kh5 f2+ Kh6 f1B Rh4 Ngf3 Rf2 Bd3 Rgg4 B3e2 Bb5+
2Nn1B2/1b1r1Q1p/NB2r3/BK1n1Q2/1B2p1B1/k1bRNRq1/4b3/brr1B3 b - - 0 1 illegal: No possible last move, all moves rejected
1k1N1Qb1/nB1Q4/QQ3r2/2Rbpp1N/1Qnb2Rq/1KN3np/3B3r/2r2Q2 b - - 0 1 illegal: No proof kernel
1Bn1r3/1N2b1nB/3k3p/1BrB3r/n1Qq2p1/2B2RKb/1p1R2RN/2bB1Q2 b - - 0 1 illegal: No possible last move
2Nb4/R2r1nRk/2BB4/qr3R1N/n1Kp4/prbp2B1/q1QRBN2/3B3b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kg7 f4 a5 b4 h5 c4 e5 g4 d5 c5 h3 g5 h4 c6 a4 c7 h2 f6+ Kg6 f5+ Kh7 b6 h3 b5 Be6 c8B Bb4 f7 Qf8 g6+ Kg7 b7 Rh5 b6 Bd6 f6+ Kh8 g7+ Kh7 Nc3 Bb4 Ba3 Rg5 Bd7 Be7 Be2 Nh6 Ne4 Qg8 f8R Na6 b8R Ra7 b7 Nf7 Bd6 Bd8 Ng3 a3 Nh5 Bg4 Qc2 Bf3 Bc6 Rf5 Ra2 e4+ Kd2 d3 Kc3 d4+ Kc4 e3 Ra8 Re5 b8B Rd7 Ra7 Rb5 Bg3 Nc5 Bbd6 Na4 Rb2 Ng5+ f7 Be4 Re8 Bf3 Re5 Be4 Rf5 Rb3 Bg4 e2 Bf3 e1B Be2 Bc3 Ra2 Qe8 Rb2 Qe5 g8B+ Kh6 f8N Qa5 Bgd5 Nf7 Ng6 Kh7 Ne7 Rb5 Nc8 Bg2 Nf3 Rb3 Re1 h1R Nd2 h2 Rg1 Be4 Rg2 Rb1 Be6 Bf3 Ne4 h1Q Nf2 Qh2 Rg1 Bg2 Bed5 Bh1 Bdf3 Rb5 Ra2 R1b3 Bd1 Qh4 Bfe2 Qg5 Qb1 Qc1 Rd2 Qb2 Qc2 Qa2 Bgf4 Bc7 Rg6 Bb6 Bg3 Bd8 Rg7+
3BbB2/1b1RB3/1r5r/1N3pKR/2p1Qn2/QnB3b1/1q1N1Q1p/rB2q1kB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 Kd4 b4 h5 d6 f5 g5 a5 b6 c5 g6 c4 b7 a4 g7 h3 d7 h4 b5 a3 b6 a2 e5 h2 e6 h3 e7 Ra3+ Qb3 Nf6 e8Q Bd6 g8B Ra5 Na3 Ra8 Bd3 Ng4 Qe4+ Kc5 Bb1 Ne3 Bb2 Ra7 Bc3 Rh6 Nb5 Na6 b8B Nd5 b7 Qb6 d8B Bd7 Be7 Be8 Bc7 Ra8 b8Q Qb7 Qd8 Rb8 Bf8 Qb6 Qh4 Qb7 Bd8 Qg7 d3 Rb6 Qf2+ Qd4 Ke2 f3+ Kd2 Nf4 Bd5 Bh5 Bde7 Be8 Qfe2 f2 Nf3 Qe5 Ke3 f1Q Qf2 Qc1+ Nd2 Qb2 Rd1 h1B Qa4 h2 Qa3+ Qb4 Rg1 Qf6 Rg5 Qg7 Rh5 Qg1 Qf3 Qe1+ Q3e2 Bg2 Ba8 Bb7 d4+ Kd5 Kf3 Nc5 Qee3 Be5 Qe4+ Ke6 Kg3 Qb2 Kh4 Nb3 Kg5 Ng6 Bc2 Nf4 Rd1 a1R Bb1 Nd3 Qeg2 Bg3 Qgf3 Nf4 d5+ Kd7 d6 Ke6 Qg4 Kd5 d7 Qc2 Nf3+ Ke4 Rd3 Qa2 d8B Qb2 Rd7+ Qc2 Qg2 Ke3 Nd2 Qb2 Qe4+ Kf2 Qc2 Bc8 Bh1 Bb7 Qe2+ Kg1 Qce4 Qc2 Q2f3 Qb2 Qf2+
3q1b1K/3b1Q2/b5BB/1r2p3/2n1pR2/1QQpn2Q/Q2Rkq1N/RNQ3qr b - - 0 1 illegal: No possible last move, all moves rejected
1B1qr3/1BbR1b2/2bR3N/p4N2/nkpRnNrQ/2NN1KN1/2Qqp3/q7 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 Kd6 d4 a5 f4 c5 g4 e5 f5 h5 f6 c4 b6 h3 b7 e3 g5 e4 f7 h2 g6 h4 g7 h3 b5 Nf6 g8N Nh5 b6 Qc7 Bg2 Be6 Qc2 Qd7 Nh6 Qd8 Nc3 Be7 f8N Nc6 b8N Na7 b7 Bg8 Nbd7 Bf7 b8N Rg8 Ng6 Qc7 Nde5 Ng7 Nbc6 Nf5 Nd3 Nb5 Ngf4 Bd8 Ne7 Rg4 Bb2 Qb6 Rd1 Bc7 Rd2 Re8 Ba3+ Kd7 d6 Qb8 d5 Ng3+ Kd1 Qa8 Nef5 e2+ Ke1 Qc8 Kf2 e3+ Kf3 e1Q Nge2 Ne4 Neg3 e2 Bb4 Qc1 Rhd1 h1Q Bc5 h2 Ba7 Qd8 Bb8 Qe1 Bh1 Qa1 Bg2 Kc8 d7+ Kb7 d6 Kb6 Bh1 Qh4 Bg2 h1B d8R Qf6 Rd7 Qd8 Nc5 Kc6 Rd4 Qd2 Ncd3 Nc5 Re7 Na4 d7 Nd6 Re6 Kb6 Rg6 Kc6 Rg7 Ne4 Rh7 Qc8 d8Q Kb6 Qh4 Qd8 Nf2 Kc5 Rg7 Bg8 Rgd7 Kb4 R4d6 Be6 Rd4 Bf7 R4d6 Qdc1 R1d4 Qd2 N2d3+ Ka3 Qh2 Ng5+ Kf2 Bg8 Ba8 Bf7 Qh5 Bc6 Bb7 Ne4+ Kf3 Nb2 Nc5 Na4 Qh4 Kb4 Ncd3+
N1kN2r1/RB2R1b1/nQBKn2p/2B2r1R/NR2bB1p/1n6/q1q3pq/1R6 b - - 0 1 illegal: No possible last move
R1qBK2B/1r3r2/bn1q1Np1/2rNBBBp/R6p/Q4k2/3B3Q/Nnbq4 b - - 0 1 illegal: No proof kernel
B4nKB/3R1N2/1N1p1bn1/2R1Q1pN/1q3qrq/NN1pRB2/2Bb4/1br4k b - - 0 1 illegal: No possible last move, all moves rejected
qkb3Q1/1NQ1p1N1/3BQQ1r/3Qn3/4pbBR/p2qqn1K/3rQ3/B2n3R b - - 0 1 illegal: No possible last move, all moves rejected
Q3r1Nq/2p4B/1Rn1NN2/p6r/b1N2pK1/B1b5/Qbn1N2R/1k1qrN1Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 h4 Ke5 d4+ Ke4 b6 a5 h5 g5 b5 f5 d6 f3 Kg3 f2 h6 Nc6 d7 Bb4 d5 Ne5 h7 Ra7 b7 Ra8 b8N Qe8 d8Q Ba3 b6 Bd7 d6 Qh5 b7 Nc6 Nd2+ Ke3 Qb3+ Kd4 e4 Nh6 e5 Ne7 e6 Bb4 Rb1 Bc3 Bd3 f1Q Ba3 Ba4 d7 Qd1 Rh2 Nc6 e7 Ke3 e8N f4+ Kg2 g3 Nf1+ Kd4 Nf6 g4 Ng8 Nf5 Qf8 Qh4 d8N Qh6 Nd7 Ne3+ Kh1 Bb2 b8N Nc2 Kg2 Qh5 Ne5 Qe8 Qd5+ Kc3 Ne6 Qh5 Nbd7 Re8 Nc4 Kb3 Qfd6 Ka2 Ndf6 Bc3 Rb3 Bb2 Rb7 Kb1 Qb4 Qh6 Ne2 Qh5 Kg1 g2 Kf2 g1R Qb3 Qh6 Qh5 g3+ Kf3 g2 Rb6 Rh1 Kg4 g1B Qd5 Bd4 Qd8 Bc3 Qa8 Rd8 Ne7 Rhe8 h8Q Rd5 Neg8 Qf8 Qh3 Rh5 Bh7 Qh6 Ng3 Re1 Nf1 Qf8 Qf3 Qh6 Qh1 Qg7+ Bg6 Qh8 Bf5 Qd8 Bh7 Qd1 Qa2+
1BNQNb2/p1n4N/N1p1n1B1/kpB1Nq2/q7/r3r3/bK2RR1R/2Rr3q b - - 0 1 illegal: No proof kernel
4R3/Q2nNnn1/BBR3nN/K2pr1k1/B5nR/1q2b3/1pb2p1N/RB1B3r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 c4 g5 h4 b5 e4 f5 a4 d3 e6 Kf6 h6 f4 h5 d6 c5 b3 Kc3 b2 Kb4 f3 a5 d2 a6 g4 c6 f2 c7 g3 h7 g2 e5+ Kg5 e7 Bh3 c8B Be6 e8B Bh6 a7 Qe7 Ba6 Qf7 Nc3 b1N Qa4 Bb3 e6 Bc2 e7 Na3 Rh4 Qb3+ Ka5 b4 Bfd3 Nd7 Nd5 Nb5 Be2 Rc8 a8B Ngf6 Bd1 Rc5 Rc4 Ng4 Nf3+ Kf5 Bb2 g1N Nh2 Be3 h6 Nf3 Bd4 Nh4 Bg6+ Kg5 e8R Qd3 Qa2 b3 Bc6 b2 Ne7 Re5 Bb6 d5 Qa3 Nd6 Ba4 Nf7 Rc6 Qb3 Be4 Rg8 h8R Ng6 h7 Rg7 Rhf8 Rg8 h8N Rg7 Rg8 Rh7 Rg7 Rh3 Rh7 Rh6 Nf1 Rh1 Nh2 Bd3 Rh4 Bc2 Bde2 d1N B4d3 Nc3 Bd1 Ne2 Bf5 Nef4 Be4 Ne6 Qc5 Nd6 Nf7+ Kf4 Nh6 Ng7 Bc7 Kg5 Qa7 Nf7 Bb6 Re1 Bf5 Rh1 Bf3 Bd1 Bb1 Bc2 Bd1
1RNRQNBb/1RkB3K/1b1R3p/7p/R3n1p1/3R2rb/3B1bnb/4rQq1 b - - 0 1 illegal: No possible last move, all moves rejected
1n6/1B4B1/1pB1Rr1b/p1B1RQ2/1prb3K/NQ1qb3/1N3BBn/2kbbQ2 b - - 0 1 illegal: No proof kernel
1N1Q1nQ1/Bbbq2r1/Q3b3/Nb3r1p/R3QQ1Q/2K2p1r/3B1np1/2k2R1B b - - 0 1 illegal: No possible last move, all moves rejected
1N1B2R1/N2N2b1/B3r1kr/nQp3n1/bRb5/QpN1n2N/1Qp2K2/1bq1N3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 dxc4 d4 Kf7 a4 c5 g4 b5 f4 h5 a5 e5 f6 h4 f5 c3 d5 b3 d6 b4 d7 c2 a6 h3 a7 e4 Qe2 e3 Nd2 h2 Ndf3 b2 Qb5 b1B Ra4 b3 Nh3 e2 Rb4 Nh6 g6+ Kg8 f7+ Kg7 g5 Qe7 d8N Qd7 Nc6 Qd5 Kf2 e1N Rg1 Bd6 f8N h1B f6+ Kg8 f7+ Kg7 Nd7 Bg2 f8N Na6 Ndb8 Nf7 Nfd7 Rh6 Bf4 Be7 Bc7 Bf6 Bd8 Qd1 Bd3 Bh1 Bf1 Ng2 Ne1 Ne3 Be2 Kg8 g7 Kh7 g8N Bd5 Nge7 Bc4 Nd5 Bg7 Nc3 Qc1 Rg2 Re6 g6+ Kh6 Rg4 Ng5 Bf1 Be5 g7 Kg6 g8Q+ Bg7 Qh8 Bb7 Ra4 Nb4 Be2 Nbd5 Rb4 Ne7 Rf4 Ba6 Rf8 Bc8 Rg8 Ba6 Qb6 Bab5 Qb7 Ba4 Qb6 Bd5 Ba6 Bc4 Qb5 Nc8 Qh4 Nd6 Qd4 Nb7 Ne4 Ba2 Qb2 Bb1 Nc3 Na5 Ne7+ Kh6 Nc8 Kh5 Nc6 Rb8 a8Q Rb6 N8a7 Rh6 Ncb8 Kg6 Qd5 Rd6 Qe5 Re6 Qa3 Qd1 Ne2 Qd2 Qeb2 Qc1 Nc3
NB2K3/2Q5/R1Nq1BBp/2b5/4b1BN/n1B3R1/1Qpbrpnb/3Brk1r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 f5 e4 f3 d4+ Kb4 b6 c5 g6 a4 b7 a3 d5 a2 g7 c3 g5 c4 g6 f2 d6 f4 d7 f3 Ke6 c2 Kf7 c3 e5 h6 e6 Kc5 b4+ Kc6 e7 Na6 b8Q Qb6 e8B Qc5 d8B+ Bd7 Nd2 Kd5 b5 Kd4 b6 Ke3 b7 Bf5 Qc7 Nb4 b8B Ne7 g8N Qd6 g7 Ned5 Ne7 Be4 g8B Nf4 Be2 f1R Rh3 Kf2 Nc4 Ng2 Rg3 Re1 Bd2 c1B Nb6 Nc2 Nc6 Na3 Qb3 c2 Bc3 Bd2 Bd1 Kf1 Qb2 f2 Bdf6 Ra5 Bd7 Rh5 Nf3 Rh1 Bh7 Be7 Na8 Re8 Bg6 Bf8 Rc1 a1B Bg4 Re6 Nh4 Be7 Ke8 Re5 Qbb7 Re6 Ba5 Be5 Ra1 Bef4 Bac3 Re5 Re3 Bh2 Rg3 Qc5 Qb3 Nb5 Na5 Bd3 Bc8 R5e2 Bh3 Be4 Qb2 Qd5 Be6 Bc5 Nc6 Qd6 Ra6 Na3 Bg4
4Rk2/2B3r1/1pBR4/Br4nR/pNK1n1Bb/b1pn1bR1/1q4R1/n1NQN3 b - - 0 1 illegal: No proof kernel
4bb1b/KRNB3r/p1R3n1/1p4r1/k2p1Q1R/RNq1B2b/1n3B1B/r1N3B1 b - - 0 1 illegal: No possible last move, all moves rejected
1r2N2n/1bR3K1/p6n/qp2rBRN/2pN4/RQ1R1rBR/3N3b/rn2kB2 b - - 0 1 illegal: No proof kernel
1K4n1/n4pR1/1RQRq1Q1/N2N1p1p/r2kB1nR/1bB1nR2/1b1r2r1/5R1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e6 f5 exf5 cxd5 Bg7 Nc3 Bh6 Nb1 Bf8 Kf2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 a5 d4+ Kc4 g4 h5 e4+ Kb4 d6 c5 d7 h3 b6 c4 b7 c3 g5 h2 d5 Kc5 b4+ Kb6 b5 Kc5 g6 c2 g7 a4 d6 a3 b6 a2 Nd2 Qc7 d8Q Ra3 Bd3 Ne7 g8R Rc3 Rg7 Na6 b8R Rc4 b7 Rb4 Nh3 Rh6 Ba3 c1N Nf4 Rf6 Nd5 Qa5 d7 Nc7 Nc4 Qa6 Na5 Qc4 Qf3 Ne2 Raf1 a1R Qe8 Qa6 d8R Nb5 Rd6 Ng8 Qe6 Na7 Bc2 Rh6 Qg6 Ra2 Ra8 Nf4 b8R Ng2 Rbb6 Ne3 Qd1 Rb2 Rf3 Be6 Rhf1 h1N Qe1 Rb3 Qh4 Ng3 Qh1 Rb2 Rd7 Ne7 Nf6 Qc8 Nb3+ Kc4 Kd6 Bd5 e5 Qe8 Kc7 Nac6 e6 Ne4 Ra4 Na7 Qgg1 Ng8 e7 Rg6 Na5+ Kc3 Rd8 Bb3 Kb8 Nf2 Qgg2 Qd7 e8Q Qe6 Qc6+ Bc5 Bd3 Rd2 Rd6 Rc4 Qg5 Bd4 Qh6 Rg2 Qg6 Be5 Bb1 Rc5 Rg4 Rc4 Rh4 Ng4 Be4 Bd4 Bc5 Ra4 Ba3+ Bc5 Nd5+ Kd4 Qh6 Bb4 Qg6 Bc3 Bb4 Bb2 Bc3+
6N1/2Nbpn1r/2N2BB1/3bbq2/R1N1R1k1/p2n2rn/KbBRp2R/2Q2R2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kg6 Kd2 Kg5 Kc2+ e3 Kb3 h5 f4+ Kh6 g5+ Kg6 d6 Kf5 d5 c5 g6 a5 g7 h3 d7 h4 b6 h2 d6 h3 b7 c4+ Ka2 c3 b4 a4 b5 c2 b6 Ra7 Na3 Qc7 d8N Rh6 d7 Ra6 Bd3+ Kf6 f5 Kg5 f6 Nc6 b8N Bb7 f7 Ba8 b7 Nd4 Bg6 Qa5 Nf3+ Kg4 Nb5 e2 Ndc6 Ne6 d8R Ng5 Bb2 c1B Nd7 Rh7 b8R Nh6 g8B Bg7 f8R Be5 Nc7 Nhf7 Nd2 a3 Nc4 Bb7 Ra8 Bc8 Bd4 Bb2 Qc1 Qd5 Bc3 Rb6 Ra4 Rb3 Rf1 h1N Nf6+ Kh4 Rf2 Bd7 Rh2 Nf2 Bd4 Nd3 Bc3 Rh6 B8h7 Qc5 Ng8 Kg4 Rb1 Qf2 Bd4 Qf5 Bc3 Bd6 Bf6 Bde5 Qd2 Rh4 Rf1 Rh5 Qc1 Rc3 Rhf2 h2 Rf3 h1B Re3 Be4 Rf2 Nh3 Rh2 Bc8 Rd5 Bd7 Rd6 Ndf4 Rd2 Bd5 Re4 Rg3 Re3 Qg5 Bc2 Nd3 Bg6 Rh7 Bg7 Nd8 Rf1 Nf7 Bf6 Qf5 Re4+
RrQN1B2/2Qbn2R/n2q2Rp/1B3Q2/1N1QKQ1n/1p4b1/kp6/q2Q1r1n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 a4 Kc5 g4 e5 f4 b5 f6 c6 a5 h3 a6 h2 a7 b3 f7 Kb4 g5 b2 f5 c5 d6 c4+ Ke4 c3 d4 c2 d5 Kb3 f6 b4 g6 Qe8 g7 Nd7 Nf3 Qe6 Na3 Qe7 Nd4+ Kc3 Ne6 Kb3 Bb5 Qd8 Bh6 Nb8 d7 Bd6 f8Q Ne7 g8R Na6 f7 Rb8 a8Q Qc7 d8Q Bd7 Qd4 c1Q Nc2 Qf1 Ra4 Qa1 Rg6 Qc6 Q8b6 Rg8 Qc8 Rf8 Nd8 Bc7 Qab7 Qc5 Qf6 Qd6 Rf1 h1N Qf5 Be8 Bg7 h6 Qba7 Bd7 Rb1 Rg8 f8Q Rh8 Q8f6 Rf8 Q6g5 Rf7 Qgf4 Rf6 Bf8 Rf7 Na3 Ka2 Re1 b3 Nc2+ Qa3 d6 Rf6 Ke3 e4 Reg1 Rf7 Rg7 Rf6 R1g6 Rf7 Rh7 Rf6 Ke2 e3 Kd3 e2 Ke4 e1N Qd1 Nf3 Qad4 Nh4 Ra5 Nb4 Ra7 Na6 Ra8 Be8 d7 Qd6 Ne6 Rf7 d8Q Rf6 Qdd7 Rf7 Qc6 Bd7 Qcc4 Ba5 Qc4c5 Be1 Nd8 Bg3 Nb4+ Ka3 Qfc1 Qa2 Qfg5 Qa1 Q5c7 Rf3 Qcf4 Rf1 Nbc6 Ka2 Qgh5 Qa3 Qhf5 Qd6 Nb4+
2r1qQ2/3bBbK1/2pp3B/2nB1r1B/1qQkp3/6Nn/1R1N3R/BB1bR1b1 b - - 0 1 illegal: No proof kernel
4BNNn/1pRpK2R/8/bbnbQR1q/2R1rp2/1B1r2RB/1b1Nk3/1qB5 b - - 0 1 illegal: No proof kernel forced: wxLB
K1N3bq/p1R2Br1/1B3B1R/2NnR3/N2bp1kB/p3r2R/4R3/1nnn2qQ b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 f4+ Kh6 d4 c5 g4 e5 b4 h3 d6 a3 Kd5 h2 b5 c4 f6 e4 b6 c3 d7 c2 g5+ Kg6 f7 Kf5 g6 h5 b7 h4 g7 h3 Nc3 Rh7 Na4 Bb4 f8R+ Qf6 d8B Nh6 g8N Bd7 Rf7 Bc8 Bc4 Rh8 Nf3 Bd6 Bb6 Na6 Kc6 Rb8 d5 Rh7 Ne7+ Kg4 f5 Qg7 f6 Be6 Nd2+ Kh4 Nb3 Rd8 b8R Nc5 Nc8 Nf5 Rc7 Qh8 f7 Rg7 f8R Be5 d6 Bg8 d7 Bd4 Bb2 c1N Bf7 Ne3 Re8 Nd5 Ra2 Kg5 Qe1 Kg4 Re5 Rf8 Bc3 Rd8 Re2 Rf8 Nb2 Na4 Kb7 Rd8 Nc5 Rf8 Rf1 h1N d8B h2 Ka8 Nf2 Bh4 Nd1 Rf3 h1Q Rh3 Qg1 Rbb7 Rd8 Rc6 Rd6 Rbc7 Rf6 Rce6 Rf3 Rh6 Re3 Qf1 Qh2 Qh1 Qg1 Bd2 Nac3 Nba4 Nb1 Bf6 Rg5 Be1 Rg7 Beh4
3b4/Rr1N2Bb/N1p1k3/4pR1N/QR3B1p/1b1pB1rn/1nq1B3/n1B1KR2 b - - 0 1 illegal: No proof kernel
1B1Bq3/1p1N1R1r/2r1r2N/p1n1bNpk/1N5R/Q3n1B1/3rB1Np/4KR1b b - - 0 1 illegal: No proof kernel
1B5K/1R3bR1/Bp2rQ2/k3p1N1/p3p2N/1N1n4/2Rprr1b/nqR1BN1N b - - 0 1 illegal: No proof kernel
1N6/k3p3/1RpR3r/nB1b4/1KR1bbBp/p1NQ2Bq/3p3B/1NrN2Bn b - - 0 1 illegal: No proof kernel
7r/BpNNR1p1/R3NkpB/pq6/NQR3p1/b1r2Br1/4b3/1Kn1n1NR b - - 0 1 illegal: No proof kernel
1R2Q3/BnQ4q/KB1Qb1b1/Q4p1N/2kp2Qb/1p4B1/1RN3qB/1n1n4 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 b5 f4 c5 dxc5 e5 fxe5 b3 Ba3 b4 Bb2 Qc7 Bc1 Qd8 g4 h5 g5 f5 Na3 Rh6 Nb1 Rf6 gxf6 g5 Bh3 Ra5 Bg4 Rb5 axb5 hxg4 Kd2 Kf7 Kd3 Ke6 Kc4 b2 h4 b3 e4 g3 f7 g4 c6 g2 c7 g3 b6 d5+ Kb5 d4 c4 Bh6 f8B Bb7 c8Q+ Qd7+ Qc6+ Qd6 c5 Na6 h5 Bd2 h6 Nb4 h7 Bf4 h8B Bg5 Rh2 Ne7 Qg4 Ned5 Ra8 Bd8 Nh3 g1N Na3 b1B Bf4 g2 Nc2 Na2 Rb8 Ne2 Bg3 g1Q Nf4+ Kf7 Nh5 Qe7 Qd6 Qd7+ c6 Qe7 c7 Ndb4 c8Q Na6 Qcc7 Bd5 b7 Qg2 Qa5 Nc5 e6+ Ke8 e5 Qh7 e7 Kf7 Qdc7 Ke6 e8Q+ Be7 Kb6 Nec3 Qed8 Nd1 Bf6 Nac3 Qdd6+ Kf7 Bh6 Bc6 Bhf4 Be8 Ne3 Be4 Nc2 Bd5 e6+ Kf8 B6g5 Nb1 Be5 Kg8 Ka7 Bf6 e7 Kf7 Bd2 Be6 Bc3 Ne4 Ka6 Bh4 Bb4 Qf3 Bc5 Qg2 Qdd7 Nd6 Bb6 Bd5 Qdd8 Ke6 Bef4 Bg6 Qf8 Nb5 Qh6 Bc4 e8Q+ Kd5 Bd6 Be2 Bdc5 Kc4 Qhf4 Nd6 Ba7 Nf7 Qfd6 Bf3 Bab6 Bd5 Ba7 Be6 Bcb6+ Qc6 Nb4 Nd8 Rb2 Bd5 Nc2 Bg8 Rc8 Be6 b8B Nb7 Bh2 Nbc3 Qdd7 Na2 Qcd8 Nac3 Bbg3 Nb1 Rb8 Qf3 Qd6 Qg2 Q8c7+
n1B3R1/Q1bN2QQ/3Q3R/2pRK3/qk2pQ1N/2p4n/4p1b1/1bB2R1q b - - 0 1 legal: proof: a4 a5 h4 d5 b4 g5 hxg5 f5 c4 dxc4 e4 fxe4 b5 Ra6 bxa6 h5 axb7 Rh6 Qf3 Rb6 Qd1 Rb5 axb5 Nf6 b6 Ng8 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 g4 a4 d4+ Kb5 d5 c5 g6 e6 g7 a3 g5 h4 d6 e3 g6 e2 d7 c3 Qd6 a2 Na3+ Ka5 Nf3 h3 Nc4+ Kb4 Nce5 h2 Bh3 Qc7 d8R Be7 Nd7 Kb5 Nh4 Qc6 Ke5 Na6 b8Q Nf6 g8Q Nd5 f4 Nac7 g7 Na8 f5 Kb4 b7 Nf4 f6 Qa4 f7 Bg5 Bg4 Nh3 f8Q Be7 Rf1 h1B Qa7 Bg2 b8Q+ Bcb7 Qbc7 Bbe4 Qh7 Bb1 g8R Bg5 Qfg7 Bf4+ Kf6 e5 Bf5 e4 Ke6 Bh6 Ke5 Bg5 Be6 Bd2 Rf6 Be1 Rh6 Bd2 Qdf8 Bg5 Qcd6 Be7 Qf4 Bg5 Rdf8 Bd8 Rf5 Bc7 Bd2 Bd3 Rf1 a1Q Bc1 Qb1 Nf8 Qba1 Bc8 Bb1 Rg5 Qd1 Nd7 Qaa4 Ke6 Qe1 Rd5 Qed1 Ke5 Qe1 Rf2 Qh1 Rf1
3NB1K1/1R1q2Q1/r2Rn2R/2r1q1n1/bN4b1/4k1R1/R1B2N1N/nn3Qbq b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 Kd3 Kd6 Kd4 a5 h4 g4 g7 e6 h5 c6 b4 a4 b6 f3 h6 a3 b5 g3 b7 g2 f6 a2 h7 f2 f7 Ra6 b6 Ra3 Rh3 Ne7 g8B Qd7 Nc3 Na6 b8R Nc5 b7 Ra6 Bb5 f1B Nf3 g1N Rg3 Nh3 Nh2 Ng5 d3 Bg2 Qf1 e5+ Kc4 e4 d4 e3 Nd1 e2 Nf2 Bh6 f8Q e1Q Qg7 Nce6 Bf7 c5 Be8 Rf8 h8R Rf5 Ba4 Qe5 Bc2 Bh3 Rh7 Bg4 Rh8 Nc6 Rh7 Na7 Rh8 Nb5 Rh7 Kc7 d6+ Kb6 d5 Nc3 Rh8 Nb1 Rh7 Qc7 d7 Bd1 d8R Qd7 d6 Kc6 Kb3 c4+ Kb4 c3 Kc4 Nh3 Rh8 Be3 Rh6 Nhg5 Nh1 Kb6 Nf2 Qf7 d7 Qe7 Bd3 Ba4 Bc2 Kc6 Ra8 Bc5 b8N+ Kb6 Ra7 Q7d6 Bb3 c2 Nc6 c1Q+ Bc2 Qcd1 Nb4 Q6d2 Nfd3 Bg1 Nf2 Qf3 Rc7 Qh1 Ra7 Nc3 Rb1 a1N Rb3 Nb1 Rb2 Bb7 Ra2 Bf3 Rc7 Bg4 Rb7+ Ka5 Rc8 Qd1 d8N Qd7 Rc6 Qf6 Rd6 Rc5+ Kd3 Qfe7 Ra7 Kb5 Rc7 Rcc6 Rb7+ Kc5 Ke3 Nd4+ Kf4 Nde6+ Ke5 Rc7 Rd4 Qed6+ Kf6 Qe5+ Kg6 Rc8 Rd6 Rc7 Rc6+ Kd4 Rcb6 Rc5 Rc6 Nf3 Kh7 Ke3 Kg8 Nc7 Rg2 Ng5 Rcd6 Nce6 Rg3+
6B1/2kbr1qr/Q1q2R2/1r2n2N/b1N2bnR/NRb2nN1/2KR1R1B/2Q5 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 Kd2 c5 f4 e5 g4 h5 f6 h3 f7 h2 b6 h4 b7 h3 d6 c4 f5 b3 g5 e4 d5 b2 g6 c3+ Kc2 e3 f6 e2 g7 e1B Bc4 Qe7 Bf4 Nc6 b8R Ba6 Ra2 Ra7 Qc1 Rb7 Ne2 Rh7 Na3 b1N Ng3 Nh6 g8N Rb5 Rb7+ Kd8 d7 Ng4 Rb2 Bh6 f8N Qf7 Ng6 Qg7 f7 Nd2 Nf6 Nf3 Nfh5 Nce5 Rb6 Bd2 f8R+ Kc7 d8R Bc8 Rbf6 Bd7 Rb3 Be1 Be3 Bf4 Bg1 Rh8 R8f7 Re8 Rf8 Re7 d6+ Kb7 Bg8 Bed2 Kb1 c2+ Kb2 Bf5 d7 Kc7 Nh8 Be6 Nf7 Bb4 Nd6 Bc3+ Ka2 Bf5 Ndc4 Be6 Qd1 c1Q R8f7 Qe3 Kb1 Qb6 Kc2 Qa6 Qc1 Qc6 Re8 Kb7 d8Q Bd7 Qa8+ Kc7 Bc5 Bg5 Qa6 Bf4 Rd1 h1B Rd2 h2 Bg1 Bg2 Rd8 h1R Rf2 Bh3 Rh2 Bf1 Rh4 Be2 Bh2 Bd1+ Kb1 Bc8 Rd2 Bd7 Rbb2 Ba4 Rb3 Rc5 Kc2 Rb5 Rf8 Qb6 Rf5 Nh6 Bg1 Qc6 Rg4 Ng5 R8f6 Be3 Rff2 Ngf3 Nf4 Rh5 Rh4 Nhg4 Bh2 Rh7 Nfh5 Bg5 Qe1 Bf4 Qc1
Bq2BN2/b7/1B1N2bK/2RRqq1B/5nrB/1r2QR1k/2Q2bR1/q2q2b1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 d4 Ke7 Kd2 h5 Ke3 a5 Kf4 c5 e4 f5 b4 c4 b6 a4 g6 Kf6 e5+ Kg7 d6 Kh6 b5 a3 b7 g2 b8B g3 d5 a2 b6 c3 g7 h4 e6 c2 d7 h3 b7 h2 e7 Qc7+ d6 Kg6 e8B+ Kh6 d8R Qa5 d7 Nf6 g8B Bc5 Be2 Ba7 Nf3 g1B Nd4 g2 Bd5 Rg8 Na3 Bf2 Rf1 g1B Nab5 h1Q Be3 c1Q Ne6 Qb2 Rc1 a1Q B2h5 Qe1 Be5 Rb8 Qc2 Qd1 Bc6 Qhd5 Nd6 Qbb1 Bb6 Qc5 Bd4 Qbb5 Nf8 Nd5+ Ke5 f4 Kf5 f3 Be5 Rg4 Bg3 Nf4+ Bd5 Ra8 b8Q Ba6 Qb7 Rb8 Qc8 Qcb4 Q8c5 Q5a5 Q5c3 Bd3+ Kf6 Qac5 Ba8 Qe5+ Kf7 Bf5 Qe3 Kg5 Rc8 Qbb1 d8R Bg6+ Kg8 Rb7 Rc5 Qbb2 Rb1 Qb5 Rb2 Qb4 Bh2 Kh4 Bg3+ Kh3 Rd7 Qg5 Kg7 Qe5+ Kh6 Qb3 Ra2 Qbb2 Ba5 Rb3 Bb6 Qbb1 Ne4 Qbb2 Rdd5 Qb8 Nd6 Qe5 Bh2 Bh4 Bg3 f2 Re1 f1Q Rb2 Qfe2 Rf1 Qed3 Rf3 Qde4 Qcc3 Q5f5 Rg2 Qee5 Qc2 Qb7 Bh2+ Bg3 Qe1 Qb8 Qee4 Kh4 Qe3 B3f2 Bg3+ Kh3 Bh4+
Nn1b4/k1BqqQ1N/3rRn1R/2q2B2/1q3B2/4B3/1B1Rrp2/KbR1q2Q b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 d4 Kd7 Kd2 f5 Kc2 g5 Kb2 c5 h4 Kc7 e4 Kb7 h6 b3 b6 g4 h7 g3 h5 g2 h6 f3 e5 f2 e6 f4 e7 f3 e8Q c4 d6 Ra4 d5 Ka6 b7 Bf5 d7 Bb4 d6 Qe7 d8R Be6 d7 Bc5 Be3 Nc6 b8B Bb6 Nd2 Nf6 Qf7 Bf5 Bbf4 Nb8 Bd3 f1Q Nh3 g1Q Ng5 f2 Rc1 Re8 h8B Ka7 h7 Ra6 Rh6 c3+ Kb1 b2 Nc4 Bg6 Bf5 Qg4 Qe1 Qfe2 Qh1 Qe1 Bg7 Qgd1 h8R Qd4 R8h7 Bc7 Bh8 Rd6 Nb6 c2+ Ka2 Qdb4 Na8+ Bb6 Rg7 Qb5 Nh7 b1Q+ Ka3 Qb1b4+ Ka2 Qc6 Ka1 Qc8 Be6 Be4 Bf5 Qcc5 Rgg6 Bc7 Rb1 c1Q Bg7 Qcd1 Rc1 Bb1 Bh8 Nh5 Bb2 Ba5 Re6 Nf6 Rc8 Qd3 d8B Qdb5 Bc7 Qbd7 Rd8 Rb6 Bce5 Rd6 Rc8 Bc7 Rd1 Bd8 Rd2 Qcd4 Rc3 Qdc5 Rc1 Rc6 B3d4 Qf8 Bc7 Rd6 Ree2 Re5 Re4 Qfe7 Ree2 Red5 Re6 Re5 Bg5 Re4 Bf4 Re2 Bde3
4RQr1/1nqbQ3/1BrQ1q2/5N2/b1k1p1rB/5NB1/KnB1nQ1n/B2R4 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 g6 Be6 g5 Bg7 c3 Bd4 cxd4 Bg4 f3 Bxf3 d5 Bg4 Rh2 Bd7 Rh1 Bc8 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 g7 c5 b6 e5 g6 f3 b7 h4 Ne2 e3 Bh3 c4+ Ka2 a4 b4 f2 b5 f1Q b6 c3 Bb2 c2 Nd2 a3 Qe1 Bd7 Rd1 Ra6 Nf3 Nc6 b8Q+ Qc7 b7 Na5 Bf5 h3 Qf2 h2 Ng3 e2 Ba1 Nf6 g8Q e1N g7 Rc6 Qgd8 Nd3 g8Q Nb2 Qg5 Qa6 Rhe1 h1B Qa8 Qab6 b8B Ng4 Qa6 Nh2 Qe8 c1R Bc2 Nb7 Qge3 Rg8 Qc8 Ke7 d6+ Ke6 Qf8 Kd5 Nf5 Rg4 Qad3 Qa6 Qdd2 Kc4 d5 Rg8 Qg5 Bg2 Qge7 e4 Rg1 Bh3 Rg3 Be8 d7 Rcg6 d8B Qf6 d6 Ba4 d7 Rg4 Qdd6 Kb5 Bb1 Rc6 Bc2 Kc4 Kb1 Qc8 Bb6 Qc7 d8B a2+ Kc1 R4g6 Rg4 R6g7 Rh4 Rg4 Rh8 Rf4 Ng7 Bd7 Nf5 Rfg4 Qa3 Qc8 Bg3 Qc7 Qad6 Qd4 Qh7 Rf4 Qfg7 Rg4 Bdh4 Rd8 Qhh6 Ra8 Qge7 Qf6 Qhg7 Rg8 Qh6 R8g7 Re8 R7g5 Qhf8 Rg8 Rd2 Nd1 Bb2 a1N Kb1 Nb3 Bbe5 Nd4 Ka2 Ne2 Ba1 Nb2 Rd1
b1N2N2/rB3B2/r1RN1r1N/kpR1n3/Q3qb1n/7N/Q1q2B2/1qr2BK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 g4 c5 f4 Kc7 Kf2 Kb6 d4 h5 d6 e5 g5 c4 f6 h3 d7 h4 a5+ Kb5 g6 e4 a6 h2 d5 h3 d6 b3 a7 b6 f7 b2 f5 Nc6 f6 Rh6 g7 Qc7 d8N Bb7 d7 Ne5 Nc6 Qc8 d8N Bd6 f8N Ne7 g8B N7g6 f7 Nh4 Nd2 b1Q Ne7 Rf6+ Qf3 Qc2 Ra6 Qc6 Nc8 Kb4 Bb2 Q6a4 Bd4 b5 Rc6 c3 Rc5 Ka5 Qf4 Rb8 a8B Bc6 Bb7 Ra8 Qf5 Ra7 Be3 Bd5 Qf3 Bb8 Bd4 Rfa6 Qe2 Bc7 Qc4 Bc6 Qa2 e3+ Kg3 e2 Kf2 Bd6 Ne4 Bc7 Ned6 e1R+ Ne2 Rb1 Rg1 h1Q Rg6 Qf3+ Kg1 Qfe4 Bf2 Rc1 Re6 Qb1 Nf4 c2 N8g6 Bb8 f8Q Bd5 N8f7 Bc6 Bd4 Bd5 Nh6 h2+ Kf2 h1R Bf7 Rh3 Kg1 Rf3 Nh3 Rf6 Bf2 Nd3 Ndf5 Bf4 Nfd6 Ne5 Qe7 Re1 Nf8 c1Q Ndf5 Qd1 Rec6 Qdc2 Nfd6 Rd1 Qe6 Rc1 Qa3 Bc4 Qd5 Be2 Qe6 Bf3 Qea2 Bd1 Rc7 Qed3 Bh1 Bf3 Bg2 Ba8 Bb7 Qde2 R7c6 Qee4 Qxa4+
BQb2k2/n2B1B1q/1N1np2b/3RrrQ1/4Qb2/4Q3/b1Bb2N1/1bB1R2K b - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 g5 h4 gxh4 axb5 Bd7 Bf4 Be6 Bc1 Bc8 dxe5 Ke7 e4 Qe8 e6 Qc6 e5 Nd7 Qg4 Qd6 Qg6 Ke8 e7 Nb8 Qe4 Kd7 e8B+ Ke7 e6 Qd8 Qe2 Kd6 e7 Na6 Qe3 Nb8 Qe6+ fxe6 f4 h5 Kf2 c5 g4 a5 Kg2 c4 b4 a4 b6 c3 b7 a3 b5 a2 f5 c2 f6 Ra7 g5 Bg7 g6 Bd7 b6 Nc6 b8Q+ Rc7 b7 Na7 f7 Nf6 f8Q Bc8 Bd7 Ne4 e8B+ Qe7 Bd3 Bh6 Qa8 Rc5 Qf2 Qh7 b8Q+ Ke7 g7 Nd6 Nh3 Rf8 g8B Rf5 Nd2 Kf8 Nf4 h3+ Kg1 h4 Qe3 Rb5 Nc4 h2+ Kg2 Ra5 Re1 h1B+ Kh2 h3 Bgf7 Bf3 Nb6 Be4 Ng2 Rb5 Kh1 h2 Rb1 a1B Qc6 Ra5 Rb5 Be5 Qc4 Bef4 Qa4 Nb7 d6 Bd5 Qad4 Ba2 Rd5 Rb5 Qde4 Rc5 Rd4 Rce5 Rd5 Bb1 Bc6 Ba2 d7 Nd6 d8Q Bb1 Bd2 c1B Qg5 Ba2 Bc2 Bb1 Bc3 Bd2 Bb2 Ba2 Bed7 Bb1 Nh4 Ba2 Ba8 Bb1 Kg2 h1B+ Kg1 Bg2 Bc1 Bf1 Kh1 Bc4 Ng2 Bb3 Q3d3 B3a2 Qde3
3n2b1/R1Rn1q2/NQB1b3/4Nbk1/Rb2Q1n1/2R5/r2pN3/1B1bbRNK b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 f5 Qb6 Qe2 Qc7 Qd1 Qd8 h4 Qb6 g4 Bg7 Bf4 gxf4 g5 Bf8 g6 Qd8 Bh3 a5 Nc3 Ra7 Bf1 Rc7 Nb1 Rc3 Qc1 Rg3 Qd1 Rg5 hxg5 Ba6 Ra2 Bb7 Ra1 Bc8 Kf2 h5 Kg2 d5 b4 e5 c4 a4 g7 Kf7 b6 e4 b5 h4 c5 d3 b7 e3 b6 e2 c6 e1B c7 d2 Nc3 d4 Qf3 d1B Bd3 a3 Rh3 a2 Kh1 Ne7 g8R Nd7 b8Q Nc6 b7 Qe8 Bb1 d3 Nce2 d2 Qe4 Nd8 Rc3 h3 Rg6 Bb4 Rg7+ Kf8 f7 f3 g6 f2 Qa7 f1B b8N h2 Na6 Bh3 Qb6 Qe6 Rh7 Ke7 f8N+ Kf6 g7 Kg5 g8B Qf7 f6 Be6 Ng6 Bf5 Ne5 Be6 Kg2 h1B+ Kh2 Bf3 Rh4 Bfg4 Kh1 Bgf5 Rh7 Bb7 c8R Bbd5 R8c7 Bc4 Rhh3 Rh6 Ra3 Rh4 Ra4 Rg4 Bh7 Rg3 Bg6 Ra3 Rc3 Bcb3 Bd3 Bbd5 Bb5 Bc4 Bc6 Bcb3 Rac1 a1N Ra7 Nc2 Bh7 Ne3 Bg6 Qe7 f7 Ra2 f8R Ng4 Rf6 Qf7 Bh7 Bg6 Rf1 Bgf5 Rd3 Qf8 Qed4 Bg6 Bf3 Bef7 Rcc7 Bbe6 Bc6 Bg8 Rc3 Qf7 Qd3 Bh5 Bf5 Bg6 Qd5 B6h7 Bb1 Bhf5 Qe4
N1Bk4/nb1N1rB1/5n2/Qp2B2R/2r2Nr1/1B4N1/3BnK2/QbrbR2r b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 h3 f5 Qc2 g5 Qb3 f4 Qd1 Qf6 h4 Qf5 gxf5 g4 Bg2 Be7 Bf1 Bg5 hxg5 Kf8 Nh3 Ke7 Ng1 Ke8 e4 b5 a4 h5 d4 c5 e5 b3 d6 h4 a5 g3 e6 c4 e7 g2 g6 h3 a6 b2 a7 c3 f6 c2 f7+ Kd7 e8N h2 f8B Nf6 d5 Rh7 g7 Nh5 g8B Ba6 Bd2 c1R Kf2 Nf6 Ne2 g1R Nbc3 b1N Bg7 Kd8 d7 Bb7 Bh3 Nc6 Ng3 Rc8 a8N Na7 Nce2 R8c4 Bg4 Nc3 Qa4 Rc2 Re1 Rc1 Qa6 Rc6 Qa1 Rc4 Nd4 Ne2 Ne6+ Ke7 d8B+ Kd7 Bf8 Rf7 d6 Kc8 Bg7 Rg2+ Kf1 f2 Bb6 Kd7 Bd4 Kc8 Be5 Kd7 Ne4 Rg3 Bf5 Rg4 Ng3 Kc8 N6c7+ Kd8 d7 Bc8 Nd5 Bb7 Kg2 f1B+ Kf2 f3 Nf4 Bg2 Nec7 Be4 Nb6 Bc2 Nca8 Bd1 Rhf1 h1R Be6 Rh8 Rh1 Rh7 Rh5 Bh1 Ke3 f2 Bf5 f1B Kf2 Rf8 Bd5 Rf7 Bfe6 Bhg2 Bb7 Be4 Bc8 Bfg2 Bd5 Bb1 Be6 Rc6 Bb3 R6c4 Rg5 Rh1 Rh5 Ke7 Ke3 Bb7 Kf2 Rf8 d8Q+ Kf7 Qc7+ Ke8 Nd7 Rf7 Qb6 Ke7 Qba6 Kd8 Q6a5+
1B1q4/Nr2kRN1/q2R3q/Rr1B2r1/K4p1b/QQ1b2b1/B2q4/1RB1r1R1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Bd2 g5 Be3 f4 Bc1 Ne7 h3 Nf5 gxf5 Nc6 h4 g4 Qd3 Ne5 Qd2 Nf7 Qd1 Ng5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kd2 a5 e4 h5 b4 d5 c4 a4 Kc2 g3 f6 f2 f7+ Ke7 b6 g2 c5 h4 b5 a3 Kb3 d3 b7 d4 b8R d2 c6 h3 e5 h2 e6 a2 c7 d3 g6 Ra5 b6 Rc5 g7 Qd4 g8B Rd5 b7 Rg5 Nf3 g1B Nh4 Rg6 Na3 Rh5 Bg2 f1R Nb5 Qd8 Bd5 Re1 Ka4 Rgg5 Na7 Bf2 Qb3 d1R Rg1 h1Q Rb1 d2 Ra8 Qh3 b8B Ba6 c8Q Bd3 Qcc3 Bg3 Qa1 Bg7 f8R Bf6 Qab2 a1Q+ Q2a3+ Qd6 Rd8 Rh7 Bf7 Ree5 Rf8 Rde1 Bg8 d1Q Rf7+ Ke8 e7 Qd2 Nf5 Qd8 Ng7+ Kd7 Qb6 Qh6 e8R+ Be7 Ba2 Rd5 Qbb3 Rb5 Nc6 Qaf6 Ra5 Qfg6 Na7 Qa6 Rf5 Bf6 Re6 Be7 Rc6 Bf6 Rd6+ Ke7 Qab2 Bd4 Q2a3 Bdf2 Bd5 Bh4 Ne6 Bfg3 Rf6 Ke8 Rf5 Rhb7 Ng7+ Ke7 Rf7#
5Q1q/N6p/1n2R2r/1R2p1b1/b1B4n/Bbn1N1Nr/N4Q2/KR1Rr1kN b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 Kd2 Kd6 Kc2 e5 Kb2 c5 g4 h3 f4 h2 f6 b3 f5 c4 f7 Qc7 f6 Qb6 g5 Qc5 g6 Ra4 g7 Ra6 b6 Qc6 b7 Rb6 Qf3 Bf5 Nh3 Nh6 g8N Ng4 Na3 Bb1 Nc2 Bg7 f8R Bh6 f7 Qe8 Qf2 Bg5 Ne7 Nd7 b8R Ba2 Rb1 c3+ Ka1 Ne3 Bc4 Ng2 Rd1 h1B Ne3 c2 Rb7 Ra6 Rb5 Nb6 Bb2 Qd8 Re8 Rg8 f8Q Nh4 Bc1 Qc8 Bb2 c1R N7f5+ Kc7 d6+ Kc6 d7 Qd8 Rf1 Re1 Ng3 Qf6 Rd1 Qh8 Ba3 Bf3 Rb1 Bd1 Rh1 Rg6 Re7 Rh6 d5+ Kb7 d6 Kc6 Re6 Ra8 Rb4 Kc5 d8N Kd4 d7 Rc8 Rb5 Bc2 Bd5 Rc3 Nc6+ Kd3 d8N Bd1 Q2f4 Kd2 Na7 Kd3 Ne4 Ke2 Ndc6 Bc2 Nhf2 Rd3 Nf5 Rh3 Nb4 Bd1 Qh2 Kf3 Qf4+ Kg2 Bc4 Bc2 Neg3 Bd1 Rh2+ Kg1 Nfh1 Bc2 Rd2 Bd1 Kb2 Bc2 Ne3 Bd1 Kc3 b2 Q4f5 Bc2 Rdd1 Bab3 Na2 Ba4 Rbc1 b1N+ Kb2 Nc3 Ka1 Bcb3 Rb1 Nf3 Q5f7 Nh4 Qf2#
2q4B/3B3Q/1QB3K1/1b1BqN2/2bq1RnB/Q2npp2/N3Rr1k/1nQ1r3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 f4 gxh4 Ra5 e5 Ra1 e4 e3 Bd6 Be2 Be5 fxe5 Bg4 Bc4 Qg5 Bf1 Be2 Kf2 Qxe3+ Ke1 Qg5 Ra4 Qf6 Ra1 Qd8 Kf2 Ke7 Ke3 f5 Kf4 c5 Kg5 a5 b4 h5 d4 f4 g4 h3 d6+ Ke6+ Kg6 a4 d7 h2 g5 e3 d5+ Ke7 d6+ Ke6 b6 h4 b7 h3 b5 f3 b6 a3 Bb2 a2 Nc3 c4 Qc1 Nc6 b8Q Nd4 b7 Qc8 d8Q Nb5 d7 Na3 Qa7 Nb1 b8Q Nh6 Qbc7 Ng4 Qa3 Ra6 Bg2 Rd6 Qb7 Rd2 Qba7 Bf1 Nge2 Rc2 Ng3 Rf2 Rg1 h1B Nf5 h2 Bh3 Bhg2 Qdc7 h1Q d8B Rh5 Qh7 Qh2 Bf6 Bd3 Re1 Bgf1 Re2 Qf4 Bh8 Qd4 Qb6+ Qd6 Nd5 c3 Nb4 c2 Bc3 Bb5 Be1 Rh2 Bh4 Rf2 Nc6 Kd5+ e6 Ke4 Nb4 Qd4 e7 Kf4 e8B Bc4 Bc6 Bb5 Qd1 c1N Qc2 Nd3 Qcc1 Nd2 Rb1 a1Q Na2 Qac3 Rb4 Nb1 Kf7 Qc5 g6 Qe5 g7 Rh6 g8B Rd6 Be4 Rd5 Kg6 Rc5 Qcb2 Rc1 Bc6 Rd1 Qc1 Re1 Bgd5 Bc4 Ne7 Bb5 Bg5+ Kg3 Bh4+ Kh2 Nf5 Qc3 Re4 Qcd4 Rf4 Nb4 Rd2 Bfc4 Re2 Nd3 Ng7 Nh6 Bhd7 Ng4 Nf5
B3b2n/5B2/2Q2Qq1/3N1r1p/2R1NQQr/BRBqp3/1nk1Q2n/2q2b1K b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 g6 Be6 g5 Bg7 c3 Bd4 cxd4 Bg4 f3 Bxf3 d5 Bg4 Rh2 Bd7 Rh1 Bc8 Kf2 Kd7 Kg2 Kd6 b4 Ke5 d4+ Kf5 g7 c5 b6 e5 d6 a5 d7 e3 b5 Ke4 g6 c4 d5 a4 b7 c3 b6 a3 d6 e2 Nd2+ Kd3 Nh3 a2 Ba3 e4 Rc1 Na6 b8Q a1Q b7 e3 Qc7 c2 b8Q Ne7 g8B Qg7 Bf7 Nb4 Qc6 f3+ Kg1 h5 Bg2 e1N Rh2 f2+ Kh1 Qh7 g7 f1B g8Q Ra4 Qgg4 Rf8 Qbc7 Qe8 d8B Ng6 d7 Nf3 Qcf4 Nh8 Ba5 Ba6 Rb1 c1Q d8Q+ Qd7 Qe7 Bb5 Qef6 Qg6 Qe1 Qd5 Ne4 Qdc4 Rb3+ Kc2 Qb7 Be8 Qbc6 Nd3 Bc3 Nb2 Qe2+ Nd2 Q4e5 Qb5 Nf4 Qd3 Nd5 Rd4 Qef4 Rc4 Qe1 Nf3 Rh4 Nh2 Qee2+ Qdd2 Ng3 Rg8 Q4e5 Re4 Qge6 Rg4 Nc7 Ra4 Qcc5 Ra5 Rc4 Qe4 Qef4 Rg4 Qb5 Qg6 Ba8 Rh4 Qbc6 Re5 Nd5 Rg5 Q6g4 Rf5 Qe1 Qe2 Ne4 Qd3 Qee2+
2nNbBB1/RK2N1N1/1N6/1p1r1p1k/3b2q1/r2q4/1Q1RnqQN/2R1R2b b - - 0 1 legal: proof: c4 e5 b4 d5 cxd5 a6 b5 axb5 g4 h5 gxh5 b6 a4 Qf6 f4 exf4 a5 Qd6 axb6 Qd8 Kf2 g5 Kf3 c5 Ke4 f6 d4 Kf7 h4 g4 h6 Kg6 h7 c4 b7 g3 h5+ Kh6 d6 f5+ Kd5 g2 e4 c3 e5 c2 d7 Qh4 d8N Nd7 Kc6 Qe7 b8N Qf7 d5 Ra5 d6 Bg7 e6 Ra3 e7 Rf3 e8R Bb2 Qd2 Ba3 Re1 Qg6 Ne6 Nf8 d7 Bc5 d8N Bd4 Ba3 c1Q+ Bc4 Qg4 Nd7 Ng6 Nc3 Qb1 Nd5 Qd3 N7b6 Bd7+ Kb7 Be8 Ne7 Rh3 Nf3 g1Q Qh2 Qf2 Qg2 Rg3 Nh2 f3 Bb4 Nf4 Ra7 Ne2 Rc1 Rh3 Rhe1 Rg3 Nc5 Kg5 h6 Kh5 Nce6 Rh3 Ng6 Rg3 Bf8 Ne7 Bb3 Nc8 Ne7 Rg8 h8R Rg6 h7 Rh6 Nc7 Rd6 Nce6 Rd5 Ba2 Qg1 Rg8 f2 Rg6 f1B Bc4 Qge3 h8Q+ Qh6 Qe5 Qhf4 Rg7 Qf2 Ra2 Qde4 Rd2 Ra3 Ba2 Qd3 Qf6 Bc5 Qb2 Bd4 Qe4 Qff3 Nec6 Qg6 Nc5 Qb3 Kb8 Rd6 Ra7 Qf2 Kb7 Qg4 Ne7 Qd3 Bg8 Bg2 Nce6 Bh1 Qg2 Rd5 Ng7+
4Qr1B/N1q3r1/2Q2pk1/B1n1B2b/B3pR2/bR2N2n/2q1N1B1/2b1KnN1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 f4 e6 f5 exf5 e4 Qg5 e5 Qf6 Qc2 Qd8 Qe4 fxe4 d4 g5 b4 a5 h4 c5 e6 g4 e7 g3 d6 a4 b6 g2 b7 c4 b5 c3 b6 a3 d5 c2 h6 f6 h7 Kf7 e8B+ Kg7 d7 a2 d6 Ne7 h5 Rg8 h8B+ Kh7 h6 Ra6 Rh4 Rg4 Nd2 Ra7 Bb2 c1B Rb1 a1Q Be5 Na6 b8Q Bb2 b7 Bg7 Nc4 Bd4 Qc7 Nd5 b8Q Qa2 Qc6 Bc5 Rb3 Ra8 Ne3 Qc7 d8B Ba3 d7 Qc2 Qbb5 Rg5 Rf4 Nc5 Qa4 Bf8 Qab5 Rg7 Qb8 Qa7 Ba5 Bc1 d8N Bg4 Bd7 Kg6 h7 Bh5 Qbc8 Qc7 Be8+ Rf7 Q8e6 Rc8 Bd7 Ba3 Qe8 Bh6 Ng4 Qb7 Rff3 Rc7 Qa6 Nb4 Nh3 g1N Bg7 Bhc1 h8N+ Kh7 Ng6 Qh2 Ngf4 Nd5 Nc6 Qc8 Bh8 Ne3 Na7 Rf8 Ba4 Rg7 Qac6 Qc2 Ne2 Qc7 Bg2 Nf1 Ne3 Kh6 Rf4 Kh7 Ng5+ Kh6 Nf3 Nh3 Nfg1 Kg5 Qe7 Kg6 Qee8+
Bn5b/nb3N2/1q1NR2n/b2pN3/1B6/Q2p1KB1/BNrr2R1/1B2Qb1k b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Ke2 Kf7 c4 h5 f4 e5 g4 d3+ Kf3 h4 f6 Kg6 b6 d6 c5 b3 c6 h3 f5+ Kf7 g6+ Ke8 g5 h2 g7 Kf7 c7 b2 g6+ Ke8 f7+ Ke7 f6+ Ke6 b7 Kd5 Ra2 Rh6 Qe1 Ra6 Nd2 b1B Nc4 Rc6 Bg2 Ne7 g8B Bg7 Nh3 Bh8 Nb2 Rc2 g7 Nec6 Bd2 Na7 f8N+ Kd4 Rg1 h1N f7 Nf2 Bb4 Ng4 Ng5 Rh2 Ra6 Nh6 Ng6 Rd2 f8Q e4+ Kf4 Bh3 c8N Qb6 Ba2 e3 g8B e2 Bc6 Bf1 Ne5 Rf2+ Kg3 Ke3 Rg2 Bc2 Bgc4 d5 Bb1 Ba4 Ngf7 Bb5 Ncd6 Ba4 Qc1 e1B Bca2 Bb5 Qc3 Rc2 Qa3 Bc3 Qe7 Rfd2 Rg1 Ke2 Rg2+ Ke1 Kf3 Bc4 Bc5 Ba5 Bb4 Bb5 Bd7 Bc6 Be8 Nd7 b8B Bb7 Bc7 Nb8 Bc6 Bc8 Ba8 Bb7 Rg7 Bh3 Rg2 Kf1 Re2 Kg1 Rg2+ Kh1 Qh4 Qd4 Qe1+ Qg1 Rf2 Bf1 Rg2 Nbc6 Nc8 Nb8 Re6 Qb6 Ncd6 Qc6 Bb6 Qb5 Bf2 Qb6 Bg3
1r1bQ2b/3rB3/1N2k1q1/BnBrB3/N1p2p2/qr2Q3/1Q1nR3/R2QK2B b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 h5 e4 c5 e5 f5 e6+ Ke7 b6 a5 d6+ Kf6 b5 c4 d7 h4 b7 f4 b6 a4 e7 a3 e8Q a2 g5+ Kf5 g6 h3 g7 h2 d5 Qh4 d8B Ra7 d6 Qh3 d7 Nf6 g8Q Ne4 Nf3 g1R Ne5 g2 Be3 Nc6 b8B Be7 b7 Nd4 Nc3 Nb5 Qg3 Nd2 Bc5 Ke6 Na4 Rg8 Qf2 Qa3 Ba5 Rg3 d8B Rb3 Bbd6 Ra8 Qe3 Rb8 Rc1 a1B Rc2 Bb2 Nd7+ Be5 Qf8 Bf6 Ndb6 Bg5 B8e7 Bh4+ Qg3 Bh8 Be5 B4f6 Qe3 Bg5 Kf2 Bgf6 Be2 Re1 Rf1 h1R Qe8 Rh5 Bf3 Bg5 Rh1 Rf1+ Ke2 g1Q Ra2 Rh7 Rh2 Bh4 Ra1 Qg6 Bh1 Rf3 Rf2 Rd3 Ke1 Rd5 Qd4 Bg5 Re2 Rb3 Qe3 Kf5 Bf8 Bd8 Bfd6 Rd7 Be7 Rc8 b8Q Ke6 Qb7 Rb8 Na8 Nc7 Qb4 Nb5 N8b6 Qf6 Qbc3 Qg6 Qb2
2QN1rQ1/1q4r1/nbB1N2p/q1R2p2/k4B2/1nR1r1br/N1B3K1/B2BN3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 c5 e4 a5 e5 f5 b6 h6 g5 a4 d6 Kc6 d7 a3 e6 c4 e7 Kb5 e8B a2 b7 Qc7 d8N+ Qd7 g6 Bg7 d5 Ne7 d6 Ra6 Bf4 Bf8 g7 Nbc6 g8B Ra7 b8Q+ Rb7 Qc8 Na7 Qg4 Nac6 Ne6 Nd4 Be2 Ka4 b5 c3 b6 c2 Bd1 Nd5 Nf3 g1B Kf1 Nb4 Ne1 Nb3 Rh3 c1R Kg2 Rc3 Bgf7 Ra7 b7 Re3 b8B Na6 Qg8 Rc7 Ba7 Rcc3 Bd4 Qb5 d7 Bd6 Bfh5 Qb7+ Bhf3 Bf2 Bc2 Bc7 Bh5 Bb6 d8N Rcd3 Be4 Rc3 Bhd1 Rcd3 Kh1 g2+ Kh2 g1R Bc6+ Kb4 Bf6 Rg7 Nc3 Bg3+ Kg2 Ka5 Rb1 a1Q Rc1 Kb4 B6e5 Qa5 Na2+ Ka3 Qh7 Rf8 Qg8 Rf3 Ba1 Rde3 Bb1 Rf1 Rc5 Rh1 Bcf3 Ka4 Bbc2 Bh4+ Rg3 Rh3 Bd5 Rd7 Rf3 Bg3 Bde4 Rg7 Bd5 Re4 Rfc3 Re3 Bc6+
4B1Q1/KbR2qk1/1n1R2p1/Q1N5/rbN4Q/1pRB1qr1/1Q2r3/2qQ2Rb b - - 0 1 illegal: No possible last move, all moves rejected
6k1/B3p3/2b2nNK/2NnBN2/1qn1bB1N/1R3B2/n1bNr1p1/Q1n1QR2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 f4 c5 h4 cxd4 e4 fxe4 f5 Ra7 Ne2 Bh6 Ng1 Rc7 f6 Rc5 Qe2 Re5 Qd1 Rf5 gxf5 g4 Nd2 Be3 Nb1 Bg5 hxg5 Qc7 Ra4 Qb6 Ra1 Qd8 Kd2 Kf8 c4 d5 b4 h5 g6 a4 g7+ Kf7 b6 a3 b7 a2 c5 d3 Ke3 d4+ Kf4 d2 Kg5 h4 b5 h3 c6 g3 c7 d3 b6 e3 Nf3 h2 Nh4 e2 Qe1 d1B Bg2 d2 Rf1 h1B Bf3 Nc6 b8B Bd7 c8Q Nb4 b7 Qb6 Ba7 Nd5 b8B Qb4 Qc3 Bc2 Be5 d1N Nd2 N1e3 Rb1 a1N Rb3 Bc6 Qd4 Nc4 Qb2 Nh6 g8N Ng4 Nh6+ Kf8 f7 Ngf6 Qa2 Kg7 f8N Rg8 Ra3 Nb3 Nfg6 Kh7 Qa1 Rh8 Bcb2 Nc1 Bf4 Na2 Rb3 Kg7 Bbe5 Ra8 Nf7 Kg8 Kh6 Rb8 Nd6 Rb5 Qeb1 e1N Qc1 Nd3 Qe1 Ne8 f6 Ndc1 Ndf5 Rb7 Be2 Bhe4 Bf3 g2 Kh5 Kh7 f7 Nef6+ Kg5 Rb5 f8N+ Kg8 Ne6 Ra5 Kh6 Ra3 Rb1 Re3 Rb3 Re2 Nc5
nr1n4/n2R2KQ/1R4BR/5Q2/Q3rr1p/k4NR1/n1Q1Q1Np/1b1Bq1q1 b - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 Nh6 axb5 Ng8 h4 g5 f4 e5 b3 exf4 h5 Bb4 Ra5 Be7 Ra1 Bf8 g4 Ne7 h6 Qd6 Ba3 Bg7 hxg7 Qe5 g8B Qc3 Bc5 Qb4 Bf2 Qd6 Bg3 Qd8 Bh4 gxh4 g5 Nec6 g6 Ne5 g7 Ned7 Ra5 Nf6 Ra4 Nc6 Ra1 Nb8 Kf2 Ke7 Kf3 Kd6 e4 Kc5 d4+ Kb4 d6 h5 e5 a5 b6 c5 d7 a4 d5 h3 b7 a3 d6 c4 e6 a2 e7 h2 e8Q c3 Qc2 Nc6 b8R+ Bb7 Bh7 Ra3 g8Q Qa5 d8R Nd5 Ke4 f3 Kf5 f2 d7 Nb6+ Kf6 Ra4 Ne2 Na8 Nd2 Na7 Nf4 Ka3 b4 Be4 Be2 f1R Kg7 f5 Ng2 Rf4 Rag1 a1N b5 Nb3 b6 Nd4 b7 Ndc6 Nf3 Bd3 Qef7 Rae4 Bd1 Qb4 Qe2 c2 Bg6 c1N Qh7 Na2 Qc4 Bb1 Qcc2 Nb6 Nge1 Qc5 Rg3 Na8 Ng2 Qb4 Rf8 Qa5 d8Q Qe1 Qe8 Nd8 Rf7 Rf8 Rd7 h4 Rg1 Rg4 Qe6 f4 Qf5 Rh8 Rc8 Rhe8 b8Q Rh8 Qbb5 Rhe8 Ne5+ f3 Rc6 Rgf4 Rb6 Rh8 Nd3 f2 Ne5+ Nc3 Nf3 f1Q Rg5 Rf8 Rh5 Na2 Rh6 Rfe8 Ne3 Qff2 Rg3 Qfg1 Ng2 Nf7 Qbd5 Rb8 Qdb5 Nd8 Qba4+
Q3QB2/3Q3r/B2b2bB/1Q1N1p2/QNq1k3/B1qR4/1n4p1/Kb1qbn1R b - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 Rh3 Ke7 b4 Kd6 e4 Ke5 d4+ Kd6 Kd2 c5 Kc3 h5 Kb2 f5 b6 c4 b5 g2 b7 h4 g6 a4 g7 Be7 b6 Bd7 Na3 Nc6 Bh6 Na5 Ne2 g1B Nc3 g3 Nc2 Nf6 g8Q Nh5 Nb4 a3+ Kb1 Bh2 Qa4 a2+ Kb2 Be8 b8B+ Qc7 b7 Bg6 Rd1 Bg1 Rh1 Rh7 Ba7 Bf8 b8Q Bf2 e5+ Ke7 e6 Kf6 d6 Be1 d5 Ke5 d7 Bd6 d8Q Qc6 e7 a1Q+ Kc2 Qc8 Na6 Qc6 Rd4 Qd1+ Kb2 Qc5 Qdd7 h3 Rh2 Qc7 Qbb4 Qc5 Qa8 Qb5 Bc5 Qc6 Rh1 h2 Nb1 c3+ Ka1 c2 Bf8 c1Q e8Q+ Re7 Qb6 Nc4 Ba3 Nb2 Nb4 Q6c2 Bb5 Qc4 Rd3 Ke4 Ba6 Qc1c2 Qeb8 Rh7 Qbb5 Nf4 Qbd8 Ng2 Qd8c8 Ne3 Qce8+ Be5 Qde6 Nf1 d6+ Kf4 d7 Bd6 d8B Qcc1 Q6d7 Qcd2 Rg1 h1B Rb3 Bg2 Rh1 Be4 Rc3 Qdd3 Bg5+ Kf3 Bgh6 g2 Rc1 Qdd4 Nc3 Qh8 Ncd5 Bb1 Rc2 Qhd4 Rd2 Qdc3 Qed8 Ke4 Rd3 Qcc2 Qd8c8 Q2c3 Qce8+
q1B3b1/r1q1r2Q/RbQ1NK1B/Q7/1BNrBp2/Q1r3r1/1b2p2B/2R4k b - - 0 1 illegal: No possible last move
1n6/BN1p1r1B/1Nr1r3/R2B2nQ/1Bq1qr2/2Rp1kq1/N1r3NQ/K6B b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kd2 b5 axb5 f5 Nh3 f3 Ng1 f2 Nc3 g5 Ra4 f4 Nb1 Bd6 Ra1 Bb7 Bh3 Bf3 Bf1 Bg4 h3 f3 Ra3 Bf4+ gxf4 Bf5 Ra5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qe7 Ra3 Qg5 Ra1 Qd8 c4 Ke7 Kc2 Kd6 e4 a5 b4 h5 Kb2 d3 g5 a4 g6 h4 b6 h3 c5+ Ke6 g7 h2 f5+ Ke5 b5 g2 f6 Rh6 f7 Rc6 f8N Ra6 b7 Rc8 b6 Nc6 b8Q+ Qc7 b7 Nd8 c6 Ra5 Nc3 Kd4 e5 Ra7 e6 Qd6 c7 Qe7 Nh3 g1Q Na2 Ke4 Bd2 Qh4 e7 Nf6 g8B Nc6 e8B Qgg3 Bef7 Ra6 Bb4 Nh7 Bg2 f1R Nf4 Ng5 N8e6 a3+ Kb1 Rf2 Nd8 Rc2 Bd5+ Ke3 Rg1 h1Q Bh7 f2 Qh5 Ra4 Rd1 f1R Rc1 Re1 Bgf3 Kf2 Ng2 Qc4 Bfe4 Qhh4 Bf3 Re6 Bfe4 Rd2 Rc3 Rc2 Ne3 Qhf4 Bh1 Qe5 Ng2 Qee4 Nf7 Rf8 Nd8 Rf7 c8N Ra6 Qe5 Nb8 Nb6 Ra4 Qh2 Kf3 Qh8 Ra5 Qe8 Rc5 Qh8 Rcc6 Qe5 Na6 b8B Rf4 Ba7 Nb8 Nb7 Rf7 Nc1 Rf4 Ra2 Rf7 Ka1 Rf4 Rb2 a2 Rbb3 Rf7 Ra3 Re2 Qh8 Kf2 Bf5 Rb2 Ra5 Re2 Q8h5 Rd2 Rc2 Re2 Kb2 a1R Na2 Rf1 Bh7 Rd2 Qg6 Ke2 Qgh6 R1f4 Ka1 Kf3 Rc3 Rc2 Q6h5+
2BN4/1Kb1R2q/2r1q3/Rbk5/Q1N2r2/bQ1Q1BrQ/pQBrpB2/2b5 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 axb5 Nh6 f5 Na6 d3 Nc7 d4 cxd4 f6 Nf5 gxf5 g4 Bg2 Ne6 Bf1 Ng5 hxg5 Qb6 Bd2 Qc7 Bc1 Qd8 Kd2 e5 b4 d5 c4 Kd7 c5 h5 f7 a5 g6 e3+ Kd3 e2 f6 e1B g7 g3 g8B a4 b6 Kc6 b7 h4 b8Q g2 Nh3 g1B Bh7 a3 Nf4 h3 Nd2 h2 Ne6 Bg3 Be2 Qe8 Nc4 Ra4 Be3 Qd7 Bf3 Rg8 Bf2 Ba6 Qe8 Be7 f8Q Bb5 f7 a2 Qh6 Bf4 f8Q Rg3 Qff6 Bc1 Qh3 Bd8 Qfg6 Bc7 Qb3 Ba3 Re1 e4+ Ke2 d3+ Ke3 d2 Kd4 e3 Qgd3 d1R Bg6 Ba6 Nd8+ Kb5 c6 Rd2 Qe4 Qe6 Bf5 Bf4 c7 e2 c8B Bc7 Rc1 Bb7 Rc3 Bc6 Qeh4 Bc1 Qb2 Ra6 Ra3 Be8 Bg6 Rc6 Ra7 Bd6 Re7 Bc7 Be3 Bf2 Rf1 Be1 Bf2 h1Q Qe4 Rg4 Rg1 Rf4 Rg5 Bd7 Qg3 Qh7 Qh3 Rc2 Re5 Rc3 Qb3 Ba3 Qb2 Bd2 Bf5 Ka4 b5 Bc1 b6 Rb3 b7 Kb4 b8Q+ Rb6 Bg6 Bb5 Nd6 Rc6 Rh5 Qef7 Ke5+ d4 Bgf5 Qf6+ Kd5 Qfg6 Nc4 Qf6 Qde3 d3 Qbb6 d2 Q3d3 Qfh6 Bg6 d1R Rf5 Rf6 Qbe6 Rd2 Qed4 Ba6 Kc6 Bb5+ Kb7 Bc6+ Ka7 Bb5 Qed5 Re6 Kb7 Rc6 Qf7 Ba4 Ra5 Bb5 Bge4 Qf6 Qdc2 Qfg6 Qdd3 Qe6 Bf5 Rd4 Bg6 Kc5 Qf4 Rc3 Qcb3 Be5 Qdb1 Rdc2 Bfh5 Ra6 Nd2 Rg3 Bf3 Rc6 Bf5 Rc4 Q1c2 Bb8 Qcc3 Be5 Bc2 Bc7 Qe4 Qhg6 Qa4 Qh7 Qcb3 Rb4 Nf1 Rc4 Ne3 Rd2 Qed3 Rf4 Nc4+
6qn/KBrbn2k/5N2/1pQ3pb/1R5R/1q2qBBN/1n1Q1pQ1/1QB3Q1 b - - 0 1 legal: proof: c4 b5 f4 a5 g4 e5 b4 axb4 h4 f5 h5 d5 cxd5 g6 h6 Bg7 hxg7 Ra6 Rh3 Rf6 Rh4 exf4 Rh1 f3 Bg2 f4 Bf1 Rf5 gxf5 Ke7 Bg2 Kf7 Bf1 Ke8 Kf2 Kf7 d4 c5 e4 h5 a4 c4 f6 h4 a5 h3 e5 h2 a6 b3 d6 b2 a7 c3 a8B c2 e6+ Ke8 d5 Qc7 e7 Kf7 d7 Nh6 d8B Kg8 e8Q+ Kh7 f7 Rf8 d6 Bg4 d7 Qc6 Qe4 Qa6 Bg2 Nc6 Bb7 Bh5 Bc7 Qa2 d8Q Ne7 Nc3 b1Q Q8d2 Qbb3 Rb1 Rc8 f8Q Nf7 Nh3 Nh8 Qg1 Qa8 Bd6 Rc7 Qef5 Qaa2 Ne4 Qg8 Rb4 Qab3 Qc5 g5 Qa8 Qbd5 Qa2 Qb3 Qb1 Qe3+ Kf1 f2 Bf3 Qeb3 Ke2 f1N Be5 Ne3 Bd6 Qa4 Kd3 Nc4 Kc3 Nb2 Kd4 Qab3 Qdg2 Qc8 g8Q+ Kh6 Bd2 c1Q Qgd5 Kh7 Be5 Qg8 Bd6 Qcc2 Bc1 Qa3 Qda2 Qcb3 Be5 Nc4 Qad2 Nb2 Bg4 f3 Bg3 f2 Bf3 Qe8 Qc6 Qd8+ Kc5 Qdg8 Kb6 Qe3+ Qc5 Qab3 Ka7 Bg4 Qgd1 Bh5 Re1 h1B Re2 Qd4 Qdg1 Qdd3 Re3 Qd4 Rc3 Qd3 Rcc4 Qe3 Q2h2 Bg2 Qhh1 Bf1 Qhg2 Be2 Rd4 Be8 Rdc4 Bd7 Nc3+ Bf5 Bh5 Nhg6 Rh4 Nh8 Ne4 Beg4 Q1h1 Bg6 Qhg1 Bd7 Bf3+ Bh5 Nf6+
R2rkq2/8/b1qRp3/RR2b2B/3R1pQ1/2rp1nBb/K2NQ1B1/2N1B2q b - - 0 1 illegal: No possible last move
3Rn1B1/1qbB1QBR/1p1r3Q/b3Q3/2kN1bB1/r2p1B1Q/3pqN2/1Kb5 b - - 0 1 legal: proof: g4 a5 d4 c5 f4 cxd4 e4 g5 b4 f5 bxa5 fxe4 f5 b6 f6 Bb7 Kd2 Bd5 Ke1 Be6 h3 Bf5 gxf5 Nc6 h4 g4 Bb2 Ne5 Ba3 Nf7 Bc1 Ng5 hxg5 Ra7 Ke2 Ra6 Ke1 Ra8 Kd2 Kf7 a4 e5 c4 d5 Kc2 h5 g6+ Ke8 c5 Kd7 c6+ Kd6 c7 Kc5 c8B h4 a6 g3 f7 e3 a7 e2 a5 e1B a6 h3 g7 h2 f6 g2 Nh3 g1B Be2 e4 Bd7 e3 Bb2 Bg3 Beg4 e2 Nf4 e1B Ne6+ Kc4 Qe2+ Kb4 Qe5 Rh6 Nc3 d3+ Kb1 d4 Ne4 Qb8 Nf2 Bd6 f8Q Kc4 f7 Nf6 g8B Qe8 Qg7 Ba3 f8Q Ba5 Qgf7 d2 Q8g7 Rg6 Qh6 d3 Bd4 Bc1 Qh3 Rb8 a8Q Bf4 a7 Rc8 Qaf3 Ra8 Qh6 Qe7 Qfh3 Ne8 Qe1 Bc7 Bg7 Rf6 Qe5 Rg6 Ne4 Be3 Nf2 Bf4 Ra2 Qc5 Ra1 Qe3 Ra3 Qe2 Ra2 Rb8 a8B Rf6 Baf3 Ra8 Rg1 h1Q Rg2 Bb4 Ra7 Bc3 Rb7 Ra3 Rh2 Ba5 Rb8 Qhd1 Rd8 Qa4 Qf1 Qc6 Rh4 Qb7 Qh3 Bc3 Qhg6 Ba5 Rh7 Qd5 Qgh6 Rg6 Nc5 Rd6 Ne6 Qb7 Nd4+
1rk1Q2B/pRN1r1R1/6pb/nKN3Qq/r1Q5/2p1b3/2r1B2N/Q1NN3q b - - 0 1 legal: proof: c4 b5 h4 f5 g4 e5 a4 d5 axb5 dxc4 h5 f4 h6 Nd7 Bh3 Ndf6 Bf1 e4 f3 Bf5 gxf5 exf3 Ra3 g6 Ra5 Nh5 Ra1 Ng7 hxg7 Qd6 Rh6 Qd7 Rh1 Qd8 d4 Kd7 Kd2 h5 Kc3 c5 e4 f2 b4 h4 e5 h3 f6 h2 d5 f3 b6 Rb8 b7 Qc7 b5 Qd8 e6+ Kc7 f7 Qd7 b6+ Kd8 d6 Rh6 Ne2 Rh5 Bb2 Nf6 g8N Rh8 Nh6 Qe7 d7 Ng4 Nc1 Rc8 b8Q Rg8 b7 Qe8 Qf4 Rc7 b8N Ne3 Be2 f1R Na6 f2 Ng4 Bh6 f8Q Re1 Ra3 f1R Rb3 Rc8 Rb7 Rf2 Rf1 h1Q Nh2 Rg7 Qa4 Rb8 Qa1 Re7 Qg8 Rd1 Qg5 Rd4 Nc7 Qf8 Qf7 Qh8 Qff4 Qe5 Qfg4 Rg2 Rf7 Qf5 Q4f4 Qh3 Rg7 Qh5 Nd2 Rf2 Ne4 Rg2 Nf2 Re4 Kd2 c3+ Kd3 c2 Nd1 c4+ Kc3 Rd4 Kb4 Re4 Bd4 c3 Kb5 Nc4 Qg4 Na5 Be5 Ra4 Qc4 Rg1 Rg8+ Bf8 Bh8 Rg4 Rg7 Rg2 Na6 Rf2 Nc5 Rg2 Rb6 Kc7 d8N Kc8 Rb7 Rf2 Rf7 Bh6 Rg7 Rd7 e7 Rg2 e8Q Re7 Qef7 Rf2 Nde6 Rg2 Na2 c1B Nc7 Be3 Nc1 Rf2 Bf3 Rd2 Be2 Rc2 Qe8+
3KBn1N/1B1N2kp/1Br2Rr1/p4b2/rr2B3/2N4Q/2r1p2Q/N2NRqr1 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 axb5 Nc6 Qe2 Nd4 Qd1 Nf5 gxf5 g4 d3 Bh6 d4 Bg5 hxg5 cxd4 Kd2 Kf8 b4 d5 c4 a5 g6 e5 f6 g3 b6 e3+ Kd3 g2 b7 e2 b8Q e1R f5 Qb6 b5 Qa7 c5 Qb6 g7+ Kf7 c6 Re4 c7 Rg4 Rh6 Be6 c8B Ne7 g8B+ Kf8 f7 Bd7 Rf6 Rg5 Nc3 Qa6 Nh3 g1R Qh5 R1g2 Bb7+ Be8 Nf2 Rg6 Qh3 R6g4 Be3 Nc6 Nfd1 Rc2 Bg2 Rg6 Be4 Kg7 f8N Nd8 Bf7 Ne6 Nd7 Nf8 Nc5 Bd7 Be8 Be6 Qd6 Rc8 Nb3 Rc4 b6 Ra4+ Nb5 Rc6 Rc1 Rg8 Na1 Rg2 Bg1 Rgc2 Be3 R2c4 Nbc3 Rcb4+ Kd2 d3 Bd4 Qa8 Ke3 d2 Kf3 Bc8 Kg4 Qa6 Kg5 Qf1 Nf2 d1R Re6 Nd7 f6+ Kh8+ B4g6 e4 f7+ Rg7 f8N e3 Ba6 e2 b7 Re1 b8N Qh1 Bb6 d4 Qdh2 d3 Bb7 d2 Rd6 Rf1 Re1 Qg2+ Kf5 Rg1 Ke6 d1R Be4 Rc1 Nfd1 Rc2 Ng6+ Kg8 Nh8 Rg6+ Ke7 Nf8 Re6 Kg7 Rf6 Qf1 Kd8 Bf5 Nd7
RRBq4/1p1Q1Bb1/1bB1bQ1q/1pRp1N2/R1b5/1k4BN/6Bn/n2K3b b - - 0 1 legal: proof: f4 f5 g4 c5 b4 e5 fxe5 a6 d4 cxd4 b5 axb5 h3 h5 Nd2 g5 Nb1 f4 Nf3 Ra6 Ng1 Rf6 h4 Rf5 gxf5 g4 Rh3 Rh6 Rh2 Rg6 Rh1 Rg5 hxg5 Bh6 Nf3 Bg7 Ng1 Bf8 e4 Ke7 a4 g3 c4 d3 g6 g2 a5 d6 g7 h4 f6+ Ke6 c5 f3 f7 h3 a6 h2 a7 Qg5 a8R Qf4 c6 Qg4 c7 Qf5 Na3 Na6 Bf4 Nc5 Nc2 Na6 Ne3 Qh3 Nf5 Nc5 R1a4 Nb3 Bg3 Nf6 g8R Qh6 Nh3 g1B Bg2 Bg7 f8Q Na1 Qd8 Bd7 c8B Bb6 Qd2 f2+ Kd1 f1B Rg1 h1B Qb2 Kf7 e6+ Kg6 e7 Kf7 e8B+ Ke6 e5 d2 Bh5 Bc4 Bhf3 Ng4 Bc6 Nh2 Re1 Qf6 Re3 Qg6 Rc3 Qh6 Qc7 Kf7 e6+ Kf6 e7 Ke6 Be1 Ke5 e8B Bde6 Nh4 Kd4 Bg3 Kc5 Bf7 Kd4 Qd7 Kc5 R4a5 Kd4 Rc2+ Kc5 Qe5+ Kb4 Qf6 Kb3 Ra4 d5 Be8 Bf1 Bf7 Bc7 Rc5 Bc4 Nf5 Qh8 Qde7 Bd8 B8d7 Bb6 Rgb8 Qd8 Bc8 Bh8 Qd7 Bg7 Be4 Bg2 Bd3 Bh1 Ke2 d1Q+ Kf2 Nc2 Bf1 Qh5 Bg2 Na1 Ke1 Qh6 Kd1
2r5/1N1kN3/1Br3NR/K1QpR3/3p1pqn/3q1pn1/3RqR2/1BNnR1Q1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 h3 f5 Ra2 Bb7 Ra5 Bf3 Nc3 Be7 Ra4 Bg4 Nb1 Bf6 gxf6 g5 Ra5 Bh5 Ra1 g4 Ra4 g3 Ra1 Bg4 hxg4 Qc8 Nh3 Qc7 Ng1 Qd8 Kd2 h5 b4 g2 c4 d6 e4 h4 b6 h3 b5 f3 g5 h2 b7 f4 e5 Rh7 g6 Na6 b8R Nh6 e6 Rd7 b6 Rc7 g7 Re7 g8N Nc5 f7+ Kf8 b7 Nd3 c5 Qe8 c6 Nf5 c7 Nb2 c8Q Ng3 Na3 Rd7 e7+ Kg7 f8N Kf7 Nb5 Rd8 Ng6 Na4 Bd3 Nb2 Qc5 Ke6 Bb1 Rc8 Ne2 Nf5 Qg1 Rc6 Rd8 Rac8 b8R Nh4 Rb6 Qd7 Ra2 Nd1 Ba3 Qe8 Nc1 Qd7 e8R+ Qe7 Qf1 g1Q Rc2 Qg5 Qg1 Qg4 Bb4 Nb2 Ba5 Nd1 Rf8 Qe8 Rf5 Qd7 Rd5 Qh7 Re8+ Kd7 Ree5 Qe7 Kd3 Qee6 Kc4 a6 Re1 Qe2+ Kb4 Qd3 Rde5 d5 Rb8 Qe2 Bb6 a5+ Ka4 Qd3 Rd2 Qe2 Kb3 a4+ Kb4 a3 Nd6 a2 Nb7 a1Q N8e7 Qaa6 Ra8 Qad3 Ka5 R8c7 Rh8 Rc8 Rh6 Qgg2 Qf2 Qg4 Rhf1 h1N Qg1 Ng3 Rf2
1Bnq2Q1/rQn5/1b1k3N/B1RNb2n/n1b3RB/B3K3/3rN1Bn/3Nrq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 f3 b6 f4 b5 c4 g5 h3 e5 c3 d5 c2 b7 h2 b6 a4 g6 h4 g7 h3 Bg2 a3 Qf1 a2 Qe1 Ra7 Nc3 Ne7 g8N Na6 b8Q Nc7 Qd1 Ba6 b7 Bc4 Nge2 Nc8 Rg1 h1R Ba3 c1N Nh6 Nb3 Rc1 Nc5 Qb3 a1B Nd1 h2 Qa2 Na4 e6+ Ke8 e7 Kd7 e8N Be5 Qa8 Rg8 b8B Rg4 Kf1 f2 Qb7 Rg3 Rc3 Rd3 Rc2 Rd2 Qab3 Bb5 Rc5 Bc4 Qg3 Be7 Qg8 Bh4 Ng7 Bhf6 Ngf5 Bd4 Ne7 Bfe5 Be4 Be3 Kg2 f1N Kf3 B3d4 Rg4 Ng3 Bc1 Re1 Ba3 Bc3 Kf2 h1Q Bg2 f3 Ke3 f2 Qg5 Ke8 d7+ Kf8 d6 Ba5 Nd5 Qf1 Qg6 Bb6 Qh7 Nh5 Qg6 Qe7 d8B Qd7 Bh4 Qd8 Qh7 Ke8 Qg8+ Kd7 Qh8 Ke6 d7 Kd6 Qg8 Qh1 Ke4 f1N Kf3 Nh2+ Ke3 Qe8 d8B Qf1 Bdf6 Qd8 Bh8 Bg3 Bc3 Be5 Ba5
1r1n1rr1/n1r4N/3Rk2r/1b2q1R1/Qr2Nn2/Bq2N1K1/1b4R1/RRQN1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 f3 b6 f4 b5 c4 g5 h3 e5 c3 d5 c2 b7 h2 b6 a4 g6 h4 g7 h3 Bg2 a3 Qf1 a2 Ba3 c1N Ne2 Ne7 g8R Nec6 Rg5 Rg8 Nbc3 Na7 Ne4 Bg7 Rg1 h1R N2c3 h2 Nd1 Nbc6 b8R Ba6 b7 Ne2 Qe1 Qf8 Bf1 Qf7 R1g2 Bb5 Qc3 Nd8 e6+ Ke8 e7 Kd7 Qb4 Bb2 e8N Rg1 Qb3 h1R Ng7 Rh6 Nf5 Rgh1 Qa4 R1h4 Nfe3 Qe6 Rc8 Rb8 Rcc1 Qe5 Rc6 Qc3 Ra6 Qb3 Rb1 a1Q Ra5 Ke8 d7+ Kf7 d6 Ke6 Ra6 Rc8 b8Q Rc7 Qb6 Rg4 Qc5 Rgh4 Qc1 Rg4 Ke1 f2+ Kd2 f3 Ra5 Ndc6 d8R Nf4 d7 Rgh4 Ra8 Nd8 Ra6+ Kf7 Rd6 Ke7 Bd3 f1R Bc4 Rf2+ Ke1 Rc2 Bd3 f2+ Kf1 Rc8 Be2 Rb8 Bc4 Ndc6 d8N Rc3 Ne6 Nd8 Be2 Rc7 Nf8 Kf7 Nh7 Rg4 Rd7+ Ke6 Bd3 Ng6 Ke2 Nf4+ Kf3 Rgh4 Kg3 f1R Nd2 Nh3 Rd4 Rff8 Bf1 Re4 Rd5 Rb4 Ne4 Nf4 Rd6+ Ke7 Nhf6 Nc8 Qa5 Bd4 Nh7 Qac3 Raa6 Na7 Bb2 Qc5 Qa2 Qe5 Ra3 Qc2 Qb3 Qd3 Qa4 Qb3 Raa1 Kf7 Rd5 Ke6 Ba3 Bb2 Rd6+
1k2K1bN/2b4R/n1n1Qr2/brr3NB/Rb1R3q/3Nq3/5rNR/1b1QB2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 a5 d4 h5 e5 a4 g5 h3 g6 a3 b6+ Kb7 e6 h2 d6 a2 e7 h4 e8N c4 d7 h3 b5 c3 g7 c2 d5 Rh4 d6 Ra4 Nf6 Rc4 Nh7 Ka8 b7+ Ka7 b6+ Ka6 Nc3 Qe7 d8N Rh5 Be2 Be6 Bd2 c1B Be1 Bd2 Nd5 Ba5 d7 Qc5 Nc6 Ne7 d8N Bg8 Ne5 Nec6 Ndf7 Qd4 Ne3 Bfb4 Nd3 Rc5 Nhg5 Qe4+ Kf2 f3 Kg3 f2 Ng2 f1R Nh8 f4+ Kg4 Rf2 Bf3 Qe7 Ne2 Qe3 Ng3 Rb5 N5e4 Rhf5 Ng5 Rfc5 Be2 f3 Kh5 Bd5 Kg6 Bg8 Rb1 a1B Rb2 Nd4 Rc2 Ndc6 Ra2 Be5 Ra4 Bc7 Kf6 Bb3 g8Q Ba2 Qe6 Bb1 Rg1 h1Q Kf7 Qh2 Nh1 Qhf4+ Ke8 h2 Nh4 Qf6 Rg4 Qh6 Ng2 Qh4 Ng3 h1R Rd4 Rh2 Nh1 Rf1 Ngf4 f2 Bh5 Rg2 Nf3 Rg6 Ng2 Rf6 Ng5 Rg1 Ng3 f1B Nh1 Be2 Qc1 Rgf1 Qd1 Nd7 b8R R1f2 b7 Ka7 Rd8 Ndb8 R8d7 Na6 b8R Bf3 Rg7 Bd5 Rh7 Bc4 Rbd8 Kb7 R8d5 Kb8 Rf5 Bd5 Rf3 Bb3 Rh3 Bd5 Rh2 Bb3 Qe4 Bg8 Qe6
n1N5/n4kN1/1bbBn1rR/nB1nN1B1/R1B5/3QqQ2/r1N5/N1bKb1q1 b - - 0 1 illegal: No possible last move
B2bB3/Q3q2r/NrNBk3/QQ1r4/Rn5Q/4B2R/bB1rqnnK/2n2b2 b - - 0 1 legal: proof: f4 c5 g4 a5 d4 e5 dxc5 exf4 b4 h5 gxh5 axb4 Kf2 Ke7 Kg2 d5 e4 f5 a4 b5 h4 g5 c4 f3+ Kh2 f2 c6 b3 h6 f4 e5 f3 c7 b4 c5 d4 h7 b2 e6 b3 a5 d3 h5 d2 h6 g4 a6 Qd3 a7 Nf6 c6 Ne4 Bg2 f1B Na3 b1R Ne2 f2 Qe1 d1R Nc2 b2 Be3 Rd2 Ned4 Qe2 Nb4 Na6 Ra4 Kd6 e7 Be6 c8Q Ba2 e8Q Be7 c7 Bd8 Qf5 Rbd1 c8Q b1Q Qg5 Rb8 a8B Rb6 Ndc6 Qb3 Qb7 Qf7 Qh4 Qe7 Qeh5 Ke6 Qb5 Rd5 Qa7 R1d2 Nd3 Nb4 Nc5+ Kf7 Na6 g3+ Kh3 Ke6 Rh2 Rf8 h8B Rf7 Bb2 Rh7 Qa1 Nc5 Be5 Nb3 Bd6 Nc1 Qc3 Nbd3 Qca5 Nb4 Rh1 Qe1 Kg4 Qe2+ Bf3 g2 Kg3 g1N Bh5 Nh3 Kh2 Ng5 Be8 Ne4 Qg3 Bh3 Qh4 f1N+ Kg1 Bg2 Rh2 Nf2 Rh3 Ng3 Kh2 Bf1 Bdf4 Nh5 Bd6 Rh8 h7 Nf4 Bd4 Ng2 Be3 Rg8 h8B Rg7 Qbc4 Rf7 Bb2 Rh7 Qcb5
n1b1RB1n/R3b2q/Rbq2b2/nr1Q4/3q3r/kB1B2KR/R3NQNB/2n5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 a5 d4 h5 g4 f5 b6 c5 g5 h3 b5 f3 b7 c4 b6 f4 g6 c3 g7 h4 Be2 a4 Nd2 a3 Rb1 a2 Ra1 h2 Bb2 c2 Bb5 c1B Qe1 h3 Bc4 Na6 b8R Nc7 b7 Ra5 Nf1 Rb5 Bb3 Nh6 g8B Na8 Ne3 Nf7 Bh7 Be7 Ng2 Qd7 Bf5 Rh4 Ne2 Nh8 Bh7 Qc6 Ba3+ Qc5 Qg1 Bd2 Qe1 Ba5 Qf1 Bb6 e5+ Kc7 e6 Kd6 Bd3 Qb4 Rc1 a1B Rc2 Qc5 Ra2 Bc3 Rg1 h1Q Qe1 Qh2 Rh1 Qb4 Qd2 Qc5 Rha1 Qh1 Bb4 h2 Ra6 Qc1 R1a2 h1Q Ra7 Qh3 R2a6 Qf5 Ra2 Qh7 R2a6 Kc7 d6+ Kc6 d7 Qa1 d8R Qa4 Kf1 f2 Rd5 Bb2 Rh5 Kd6 d5 Bbf6 Ba3 Qab4 Qe3 Qc6 Qf3 Kc5 d6+ Bg5 d7 Bf6 Bc1 Qd4 e7 Kb4 e8R Be7 d8Q Bgf6 Ne3 Rh3 Kg2 f1N Qdd5 Nd2 Bb2 Rh4 Qf2 f3+ Kg3 Nc4 Ng2 Na5 Bc3+ Ka3 Be1 Rf4 Rh3 Rh4 Bd2 Qc2 Bh6 Qc6 Qe3 f2 Bf8 Bf5 Rbd8 Bc8 b8B f1N+ Kf2 Qh5 Bh2 Nd2 Kg3 Qf5 Qf2 Qh7 Bd1 Nb3 Rd6 Nc1 Bb3 Qb7 Rc6 Qd7 Rc2 Qc6 Ra2+
b2KB3/RNR1r3/n5r1/N1r1q3/1NRk4/1qb1n1r1/3bQ1RQ/Bn1NnR2 b - - 0 1 illegal: No possible last move
1B3K1B/4N2Q/nbbQ1RN1/6q1/qB1qBN1q/4k2r/B1N2rnr/2Rr3n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kc4 g4 c5 e4+ Kb4 b6 f5 d6 a5 b7 a4 d5 f3 g5 f2 g6 a3 g7 a2 d7 h3 Ke6 f4 Kf7 h2 e5 c4 d6 Kc5 b4+ Kc6 b5+ Kc5 e6 f3 e7 h4 e8B h3 b6 c3 Bc4 f1R Ne2 f2 Qd3 c2 Qh7 Rd1 Rf1 h1Q Bd2 c1Q Na3 h2 Nf4 Kd4 Bb4 Nf6 g8N Nh5 Ng6 Nf4 N8e7 Na6 b8B Ng2 b7 Qg5 Rc1 a1Q Ba2 Ke3 Ba7+ Qb6 d8Q Bd7 b8B Bc6 d7 Qbd4 Qc7 Bg7 d8N Be5 Qb6 Bc7 Ne6 Bd8 Qc5 Bb6 Be5 Rd8 Qd6 Rd2 Bb8 Rc2 Qg7 Rh3 Qh7 Rd2 Bh8 Rb2 Rg1 f1R+ Nef4 Rff2 Kf8 Rd7 Rgd1 Qe1 Bef7 h1N Bfd5 Rbe2 Be4 Rc2 Ba5 Qa4 Rd5 Q1d4 Rf5 Rcd2 Bb4 Rd1 Rf6 Ra7 Qg8 Rd7 Nc8 Rdh7 Nce7 Rh2 Qg7 R7h3 Qf7 Rb2 Qg7 Qeh4 Qh7 Rf2 Nc2+
Q1r1Rb1B/1Bq1b1q1/1qkb1r2/8/2B4K/1N1QnbrN/r4B2/NRN1nB2 b - - 0 1 illegal: No possible last move, all moves rejected
2qn4/1B1BQ1k1/q1R1n3/1r4q1/1p1NB2B/2BQQbb1/Q1r2bnr/N2R1K2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 d4 h5 g4 b5 a4 c5 a5 e5 a6 e4 a7 c4 d6 e3 d7 e2 f6 h3 d5 c3 g5 b3 d6 b2 f5 h4 Qd4 h2 Na3 b1Q Nc2 b4 Bh3 Qa2 Qe3 Rh5 Bb2 Ne7 Nf3 Qa6 Nfd4 Nbc6 Rc1 Ng6 Na1 c2 Bc3 Nf4 g6+ Kg8 g7 Bb7 Bg2 h3 Be4 Rc8 a8B Ne6 f7+ Kh7 g8B+ Kg7 Rd1 Qg5 d8B c1B d7 Bc5 Rg1 h1R f8Q+ Kh8 f6 h2 Kf2 e1N f7 Ng2 Qe7 Kg7 Bgh7 Bd2 Bhf5 Bb6 Rc1 Bc7 Rgd1 Be1+ Kf3 Bf2 Bg4 Qa7 Ke2 Bcg3 Bgf5 Nf8 Qe6 Qa6+ Qc4 Ne6 Rc2 Qf4 Bh4 Qg5 d8Q Rc7 Qd5 Ncd8 Qcd3 Rc5 Qa2 Rb5 Rdd2 Rc1 Rd1 h1Q Bg4 Bd5 Bb7 Qh3 Kf1 Rh8 Bg6 Bf3 Bge4 Nc7 Bd7 Nce6 Be1 Qhf5 Rc6 Rc2 Bc3 Qc5 Rd6 Qc8 Rc6 Qg4 Be7 Rh2 Bh4 Kh8 f8Q+ Qg8 Qc5 Qg5 Qd6 Kg7 Qe7+
2nK2n1/NQ1b3B/Q1NrQR2/BR3n1r/1r2q1B1/b3r3/b4pr1/B2QQk2 b - - 0 1 illegal: No possible last move, all moves rejected
nB2QN2/2qb3r/BN3Q1n/b1N2r2/1Q3pQR/N1K2b2/1r3nn1/1N1k1n1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 g4 a5 e4 c5 b4 h5 b6 f5 b7 c4 b5 h3 g5 a4 b6 h2 g6 f3 g7 h4 Ra3 h3 Kc3 f2 Qd3 Nd7 b8N Rh7 b7 Ra5 Nf3 Nb6 Ne5 Bd7 Na6 Qc7 b8N Nh6 g8Q Na8 Qg4 f4 Bb2 Be7 Nc5 Bd8 Qd2 Rb5 Be2 f1N Rb3 a3 Bd3 Bf5 Nbd7 a2 Nb6 a1R Be2 Raa5 Ba1 Ke7 d6+ Kf6 d5 Bd7 Ra3 Rb2 Ra2 Be6 d7 Rab5 d6 Bf5 Kd4 c3 Nec4 c2 Nca3 c1N Qb4 Nd3 Kc3 Ne1 Bc4 Ra5 Ba6 Ng2 e5+ Kf7 e6+ Kf6 e7 Ke5 Rg1 h1B e8Q+ Be6 Qc4 h2 Qb4 Bh4 d8Q Be1+ Kd3 Bd2 d7 Bc3 Qdh4 Rb5 d8N Ra5 Qc6 Bd7 Nde6 Be1 Nf8 Rb5 Nca4 Rd5+ Kc4 Ke4 Nc5+ Ke3 Qhf6 Rf5 Qe4+ Kf2 Qe8 Bd2 Ne6 Ke1 Nf8+ Ne3+ Kd4 Bf3 Rh1 Kd1 Kd3 Ng2 Kc4 Rb3 Be5 Rb2 Kd4 Qc6 Bb8 Qc7 Qb5 Ba5 Qb4 Kc1 Kc3 Kd1 Rg1 h1N Ra1 Nf2 Rh1 Rd2 Ra2 Rd6 Re2 Rd2 Rh4 Rb2 Re3 Be2 Reh3 Bf3 Rh1
3R1QRK/3nkRR1/2q5/2bBqb2/2b1BBNN/1B5r/2p3Qb/nn1Brb2 b - - 0 1 illegal: No possible last move
1Qqb1R1n/b1nN3k/r4BB1/Rr4Q1/4B3/3pBN2/1bqb1K1N/nb3NB1 b - - 0 1 illegal: No possible last move, all moves rejected
1Qbr2r1/2N4R/rB5R/4B1nr/qNN5/pkbB3N/r1N1B2b/1QKnq3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 h5 b4 Ke7 d4 Kd6 Kd2 a5 g4 f5 b6 c5 b5 f3 b7 f2 g5 a4 g6 c4 g7 c3+ Kc2 a3 b6 f4 Nf3 h3 Be3 h2 Qc1 h4 Bb5 f1R Be2 h3 Ng1 Nf6 g8B f3 Nd2 f2 Bf7 Nc6 b8B+ Qc7 Bg6 Na5 Qe1 Nh7 b7 Nc4 e5+ Kd7 d6 Qa5 e6+ Kc6 d5+ Kb5 e7 Ka4 e8N Ng5 d7 Bd6 d8N Rg8 Nc6 Bg3 d6 Ra6 d7 Nb2 d8N Qb4 Qc1 Rd1 Bf3 f1R Be5 Rf2 b8Q Qd4 Nc7 Bf4 Kb1 c2+ Ka2 Qd7 Nc4 Rd5 Qf1 c1B Kb1 Bd2 Bd3 Bc3 Bb6 Kb3 Nde6 Qe8 Qc1 Rd8 Nb4 Qa4 Ra2 Nd1 Re2 Rgf8 Re3 Ra2 Bfe2 Rh8 Re4 Bg3 Rh4 Rhg8 Rh7 Bf4 Nf3 Bg3 Ne1 Bf4 Nec2 Bg3 Re1 h1Q Nf4 h2 Rf1 Qg1 Rf2 h1R Rfh2 Qf2 R2h6 Rh5 Nh3 Bh2 Ne8 Qe1 Nc7 Qc6 Qb2+ Ka4 Qa1 Kb3 Kc1 Qa4 Qb1+
Q3Nn2/6k1/NQ2rR1r/1q3r2/R1N1rBpN/2qb3r/KnBB4/N2Bq1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 g5 Kd2 a5 Kc2 c5 Kb3 f5 e4 Kf7 h4 g3 h5 a4+ Ka2 g2 b4 f3 e5 f2 h6 a3 e6+ Kf6 e7 c4 e8B c3 d6 g4 b6 f4 b5 c2 d5 f3 b7 Ne7 h7 Bd7 b6 Be6 d7 Qc8 d8Q Qc3 Rh6+ Kg7 Bd3 f1Q Rf6 f2 Nd2 Qc8 Ba4 Nd7 b8N Ra6 b7 Qc3 Nb3 Ne5 d6 Nc4 d7 Bf5 Nf3 g1R Nfd2 Rg3 Qb6 Nb2 d8N Rh3 Qf3 Ng6 Nc4 Bc5 Nf7 Nf8 Bd2 c1R Nfd6 Re1 Bc2 Re4 Qg2 Qe1 Qh1 Ra5 Na6 f1Q b8B Bg1 Bd1 Re6 Qa8 Bd3 Bc2 Rf5 Bd1 Rg8 h8N Qfe2 Ng6 Rgh8 Nh4 Rh6 Rb1 Qee5 Na1 Qb5 Bac2 Na4 Rb3 Nb2 Rb4 Re4 Kb1 Re6 Ra4 a2+ Kc1 Re4 Ne8+ Kh8 Nb3 Re6 Bbf4 Qcb4 Bb1 a1R Nca5 Ra3 Be5 Bf1 Na1 Rae3 Nc4 Re4 Bc2 Qc3 Kb1 Bd3 Bef4 Kg8 Ka2 Kh7 Ned6 Kg7 Ne8+
K2k1Br1/3b3B/b1nr2N1/2R3B1/1Qpq4/qBQqb2B/q3n1R1/1RRN3q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 g4 a4 b4 f3 d4 h3 g5 f2 g6 c4 g7 f6 d6 h4 Kd5 h2 e4 h3 b6 f5 d7+ Ke7 e5 a3 b7 f4 e6 a2 b5 f3 b6 Na6 Kc6 Ra7 b8B Rh7 b7 Ra8 d5 Nc7 d6+ Kf6 e7 Ne8 Qe1 Nc7 e8B Nb5 Ne2 Rh6 Nf4 Nc3 Ng6 Ne2 Nc3 Qa5 d8R Qa3 d7 Bc5 Bg2 f1Q Nd1 f2 Rb1 a1Q Bd6 Be3 b8Q Q1a2 Bf8 Ba6 Rc8 Qg1 d8R f1Q Qbb4 Ne7+ Kc7 Rb8 g8B Nc6 Bh7 Qgf2 Rg1 h1Q Rd2 h2 Bh3 Qh4 Rdb2 Qd4 Qec3 Qf5 Rg2 Qd3 Rc2 Ra8 Bd2 Rb8 Rcc1 Ra8 Bed7 Kf7 Nf4 Rd6 Ng6 Kf6 Re8 Rb8 Re5 Rd8 Rd5 Kf7 Bdf5 Ke8 Rc5 Rc8+ Kb6 Kd8 Be4 Rc7 Bf3 Rg7 Bfg4 Rg8 Bd7 Na5+ Ka7 Nc6+ Ka8 Qe1 Rg1 h1B Bdg4 Bd5 Rg2 Qh1 Bd7 Be6 Be8 Nb8 Ba4 Bd7 Bc2 Nc6 Bb3 Bf2 Bf4 Be3 Bg5+
4N1bK/rbR1b1R1/R7/1Rnq1p1B/1n4Q1/B1r2r1N/Q1Rq2b1/1NkN1b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 a5 e4+ Kb4 d4 c5 d6 f5 g5 h5 g6 c4 b6 c3 d5 a4 b7 a3 d7 f3 g7 f2 d6 a2 Be2 f1B Nh3 c2 Nf2 Kb3 Rg1 Qc7 d8R h3 Rd7 h4 Bh5 h2 Qg4 h1B Nd1 Na6 b8R+ Nb4 Rb5 Qb8 Rc7 h3 d7 h2 d8N Bb7 Nf7 Nf6 g8Q Qd8 Ng5+ Bd5 Nh3 Bhg2 Qe6 h1B Qa6 Bb7 Ke6 Bc8+ Kf7 Bb7 e5 Qd2 e6 Ra7 e7 Ne4 e8N Be7 Kg7 Nc5 Qa5 Rh7+ Kg8 Rg7+ Kh8 Bgd5 Qa6 Bhg2 Ra5 Ba8 Qgg6 Nbd3 Qae6 Bf3 Qg2 Rg3 Qge2 Be4 Qf7 Re3 Rg7 Beg2 Qg4 Rf3 Ra6 Bc4 Rb6+ Ka4 b4 Kb3 Bb2 c1R b5 Kc2 Ra6 Be6 b6 Bad5 b7 Be4 Qf6 Bg8 b8R Bc6 Qfg6 Nb4 Rb5 Bb7 Qf6 Qd5 Ba3 Qd2 Nbc3 Qd5 Rb1 a1Q Qe5 Qb2 Qe2+ Kb3 Qec4+ Kc2 Qa2 Kd2 Ne2 Rc4 Nec3 Qc2 Rb2 Kc1 Nb1 Qcd2 Qe4 Rc2 Qg4 Rcc3 Rc2+
2b1R1Q1/N1kqrnp1/RBN1bQ2/1rn4R/1bBR2r1/4Kb2/1b5R/1Q1q1Q2 b - - 0 1 illegal: No possible last move, all moves rejected
2n3B1/1QQbrN2/3r2np/1R1Rn2n/R3n2q/b1RQnQ2/8/nkBRN1K1 b - - 0 1 illegal: No possible last move
nNB2nbR/1Nn1RN2/1p2q1rR/4n1b1/5r1n/1NK2QQ1/4k1n1/BR3N1n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 g4 Kd6 f4 Kc5 a5 Kd4 d6 h5 d7 c5 f6 e5 f7 b6 f5 e4 f6 b3 a6 c4 d3 e3 a7 e2 Kd2 e1N g5 b2 g6 c3+ Ke2 c2 Kd2 h3 g7 h2 Na3 h4 Bh3 Qe8 d8N Rh6 Qh5 Be6 Rb1 Ng2 Qf3 Na6 Nc4 Be7 f8R Nc7 f7 Bg5+ Ne3 Nf6 g8Q Rg6 Nb7 Nh7 Bg4 Rb8 a8R h3 Ra7 Na8 Bf5 Bb3 Bc8 Qe6 Re8 Bd5 f8N Ba2 Nd7 Nf8 Nd6 Rb7 Nb8 Rf7 Rae7 Rf4 Nb7 Bd5 Ke2 Kc3 d4 Ba2 d5 Kd4 Bd2 c1N+ Kd1 Nd3 Kc2 Ne5 d6 Bd5 d7 Bc4 Rc1 b1N d8N Nc3 Nf7 Nd5 Rb1 Ndc7 Nf1 Ba2 Ne2+ Kc4 Rg1 h1N Nd4 h2 Nb3 Ng3 Rh1 Nf5 Bc3 Nfh4 Ba1 Ned7 Qf2 Ne5 Kb2 Kd3 Qg7 Nh7 Rh8 Nf8 Qg3+ Ke2 Qf6 Nc6 Kc3 Ne5 Nbd2 Bd5 Nb3 Bc4 Rg1 h1N Rh6 Nf2 Rh1 Bd5 Rh2 Nh1 Rh3 Nhf3 R3h5 Nfh4 Rh8 Bc4 R5h6 Re4 Nfd8 Qd5 Qc6 Rf4 Reh7 Qd7 Re7 Bg8 Nf7 Qe6 Qcf3+
NBqqq1Q1/3b1rN1/n3N1nR/k6r/B6B/2N1Q3/KRbNp3/1Bb1r1b1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 Kd2 c5 Kc2 Kc7 Kb3 Kb6 f4 h5 g5 e5 f5 h3 g6 a4+ Ka2 h2 b4 h4 f6 c4 f7 e3 g7 e4 d6 a3 d7 c3 d5 h3 d6 e2 Qe1 c2 Nf3 e3 Nc3 Rh5 Nd2 Na6 Rb1 Bb7 Rb2 Qg5 d8Q+ Nc7 d7 Ne7 g8B Ra7 Bh7 Bc6 Qc8 Be4 d8N Ng6 Ne6 Bc5 f8N Na6 Ng7 Rf7 Nfe6 Qd8 Bg2 Bd3 Bc6 Bd4 Qg3 e1Q Qa8 e2 Qe3 Qg3 Be8 Qgc7 Qg2 Qcc8 Qgg1 Kb7 b6 Bb5 Qgg3 Bd7 Qb8+ Kc6 b7 Kb6 b5 Ka5 b6 Bc5 Qbg3 Bd4 b8N Bc5 Rf1 h1Q b7 h2 Rf6 Qe4 Qgg5 h1B Qg4 Nh4 Rh6 Ng6 Qgg1 Qa4 Qgg3 Be4 Qg4 Bb5 Nd7 Bed3 Nb6 Bd7 b8B Be4 Qeg3 Bg1 Qe3 Bf5 Na8 Qe4 Kb3 a2 Qg2 a1R Qgg5 Rb1 Ka2 Bb5 Qgg3 Bd3 Ba4 Bh3 Nc5 Qee8 Qgg5 Bd7 Qd5 Rf2 Qg8 Rf7 Nce6 Bf5 Nf3 Be4 Bd2 c1B Be1 Bc2 Bh4 Nf8 Bf5 Ng6 Be4 Bd2 Bf5 Re1 Be4 Bc1 Nd2 Bd1 Bb1 Bb3+ Ka3 Bc2 Ka2
1B1r1q2/1QQ1RR2/1Q1Qb2n/q1nb2RK/1kr5/qn5B/q1p5/b1N1RN1R b - - 0 1 illegal: No possible last move, all moves rejected
1K3nR1/B1r1Q3/3rbB1b/1b1N1Rq1/nNq1BQ1R/B1bR1n1p/1k1B4/4r3 b - - 0 1 illegal: No possible last move
Rrk1b3/1n4R1/qbB1KB2/1q1R3n/1rBB4/B2QNqp1/6qQ/2b2NrR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Ke3 c4 h5 c3 e6+ Kc7 d6+ Kb7 d5 a4 Kd4 g3 Ke5 f2 h6 f4 b6 f3 b5 g4 d7 g2 d6 a3 h7 a2 e7 c2 e8B Nf6 Qd3 Nc6+ Ke6 Ne4 Nh3 g1R Nf4 Na5 Ng2 Rb8 Nd2 Nf6 Ba3 c1B Ne3 Nh5 Be2 Qc7 Ndf1 Qc6 Rb1 Rg8 h8B a1Q Bd4 Be7 Rb4 Bd8 Rc4 Rg5 Rc5 Rf5 Rd5 Rf4 Rg5 Bc7 Rg7 Qcc3 Ke5 Qc4 d8B Bd7 Bf6 Qc2 Kd5 Kc8 Ke5 Bc6 Ke6 g3 d7+ Kb7 d8Q Qd2 Qd5 Kc8 Qa2 Nb7 Qb2 Be4 Bc6 Bg6 Qdb1 Qc2 Bc4 Be8 Q2a2 Qa4 Qd3 Qc3 Qac2 Qa6 Qf5 Qca5 Qfd3 Ra8 Nd2 f1Q Bdb2 f2 B4d5 Ra4 Bc4 Nd6 Bbd4 Qa7 Qa2 Rb4 b7+ Kb8 Qb2 Qe2 Qbc2 f1Q Qb2 Qff3 Nf1 Qh2 Qg2 Q7b6 Qh3 Qhg2 Qh2 Ka7 b8R Qc5 Rb6 Rd8 Ra6+ Kb8 b6 Rc8 b7 Bb6 Rg8 Qcb5 Ra8+ Kc7 b8R Qaa6 Rg5 Rd8 Rd5 Rc8 Bfe5 Kd8 Rb7 Rb8 Bf6+ Kc8 Rd7 Nb7 Rg7
2QBK2R/n1rBB1Q1/R3n3/1bkr1r1N/4NN2/1p1qNn2/q1q2n2/1Bb1N3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 c5 Kg5 h5 Kg6 e5 Kf7 b5 g4 c4 a4 e4 f4 b3 d4 b2 g5 c3 a5 e3 g6 e2 a6 e1R f6 b4 f5 b3 g7 h3 a7 c2 Nd2 b1Q Ngf3 h4 Bd3 h2 Ra6+ Nc6 Ba3+ Kc7 d6+ Kb7 d7 c1N d5 h3 d6 Nd4 Qc2 Re5 Nc4 Qc7 Ne1 Nf3 Ne3 Ne7 g8N Rh5 d8B Rd5 d7 Ne2 Ke8 Ned4 f7 Bh6 f8N Ne6 f6 Nc6 f7 Qa2 Nf6 Rhf5 Ng6 Bf4 f8Q Bh6 Ra4 Kb6 Bae7 Ba6 Nh5 Rc8 a8B Na7 Qg7 Bb5 Bc6 Bg5 Ngf4 Bh6 Rg1 h1N Rg6 Bg5 Rh6 h2 Rh8 Nf2 Qc1 h1Q Bb1 Qf1 Ra5 Be2 Ba4 Bb5 Ra6+ Kb7 Qc5 Qd3 Qc1 Qcc3 Qc2 Qcd2 Qc5 Qd2c2 Qcc3 Rb8 Qc8+ Ka8 Bb6 Ned4 Ne6 Bc6 Ng4 Bc1 Nef4 Ne6 Ba5 Bb7 d8N Bc6+ Qd7 Rbb5 Ne3 Rb7 Nf7 Kb8 Bad8 Rc7 Ra5 Kb7 Nd6+ Kb6 Ra6+ Kc5 Bb5 Ba8 Qc8 Bb7 Bd7 Bc6 Nf6 Ba4 N6h5 Bb5 Ne4#
R3q2R/N2bQ2N/R1bq1n1n/3q4/1qp1N1nK/RR4r1/1BNk1bQ1/rB6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 a5 e4 f5 g4 c5 b6 h5 b5 f3 b7 a4 g5 a3 g6 f4 b6 h3 e5+ Kd7 g7 c4 d6 Ke6 d5+ Kf5 e6 Ke4 d7 h2 e7 a2 e8N h4 d6 h3 Qd2 Nh6 Ne2 Rg8 Nd4 Qc7 d8R Nd7 b8N Nf6 d7 Qd6 Rg1 h1Q b7 h2 Rg3 Qb4 Rh3 Bc5 Nc6 Ba7 b8R Bb6 Ke1 f2+ Ke2 Qg2 Nc2 h1B Bb2 Bd4 Ra3 f3+ Kd1 Qh2 Na7 Qhd6 Bh3 f1N Ke1 Ne3 Kf2 Qd5 Kg3 f2 Kh4 f1Q Nc3+ Kf3 Rb5 Qd3 Ne4 Neg4 Qg2+ Kf4 Rb6 Qe3 Rb1 a1Q Rba6 Qd3 N8d6 Qe2 Ng5 Qe8 Nde4 Be3 Nh7 Bf2+ Rg3 Qaa5 Ra1 Qaa4 Ra3 Qac6 Rb3 Qcd6 Rba3 Rf8 g8R Rf7 Rh8 Rg7 Qh2 Rg8 Bf1 Bf3 Qg2 Rg6 Bd3 Rg8 Na1 Ke3 Bb1+ Ke2 Nc2 Rg7 Neg5 Kd2 Rb3 Qe1 Rdf8 Qe8 d8Q Bd7 Qe7 Q5c5 Rc3 Bfc6 Rca3 Qcd5 Rb3 Rb8 Rba3 Rb5 Rb3 Ra5 Rfg8 Ra1 Rf8 Qef7 Ra8 Qe8 Ne4+ Ke2 Qe5 Ne3 Rba3 Rg4+ Kh3 Kd1 Rf3 Rg3+ Kh4 Neg4 Rfb3 Ke2 Qe7 Kd1 Neg5 Kd2 Ne4+
2kBR1Kb/1brr4/q2b1Qb1/2QN1QQp/1q6/1q1R1NB1/4BB1B/r1n2n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 a5 d4 a4 e4 f3 g4 h3 g5 f4 d6 f2 g6 c4 g7 a3 d5 c3 b6 f3 b7 a2 b5 h2 b6 c2 Be2 f1R Be3 c1B Qc2 f2 Nc3 Nh6 g8Q Ra4 Qg5 Bb2 Nf3 Rb4 Rd1 a1Q Rd3 Na6 b8B Qe1 b7 Qb6 Kf6 Rd4 e5 Nf5 Kf7 Rh7+ Kg8 Nb4 Rg1 Re7 e6+ Kd8 d7 h1B Bbf4 Ng3 b8B Na2 Qf5 Bb7 Qf6 Nf5 Bh2 Qb3 Bbg3 Nc1 Qg5 Qd2 Qb1 Rd1 Re1 f1Q Bef2 Ne3 Qc2 Ba1 Qf5 Rh7 Qb2 Bd6 e7+ Kc7 d8B+ Kb8 e8Q Rc7 Qee4 Bg2 Qf6 Kc8 Qa3 Bh3 Qeg6 Bf5 Qc5 Bb2 Qgf7 Bg6 Qg5 Ra4 Qf8 Ra1 Qf7 Be5 d6 Bh8 Qf6 Ba3 Nd5 Qdb4 Qg5 Qh3 Qgf6 Qe6 Qf5 Nf1 d7+ Kb8 Qg5 Qa6 Qff5 Bab2 Bf6 Be5 Be7 Bd6 d8Q+ Bc8 Qdf8 Rd2 Q8f6 Bb7 Q5e5 Kc8 Bd8 Rc2 Qe4 Rc4 Qee5 Re4 Qef4 Re7 Q4f5+ Rd7 Bd1 Rc6 Re8 Rc7 Be2
Rb4k1/bKRQ1Q1N/2N3p1/4rn1n/1n1QQr1R/1r5B/1Bb3Rq/q4rQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 f5 h4 Kf7 e4 c5 d4 g6 h5 f3 Ke3 a4 b6 c4 d6 a3 h6 a2 h7 f2 e5 c3 d5 f4+ Kd4 f3 Kc5 g3 b5 g2 e6+ Kg7 b7 c2 b6 Qg5 e7 Qh4 e8Q Qh3 Qe4 Bg4 Rh2 Ra6 Nc3 Be7 Nce2 Bh4 d7 Ra3 d8Q Bg5 d6 Qg3 d7 Ne7 Nh3 g1B Rg2 Bf5 Nd4 Rf8 h8R Qh2 Rh4 Nbc6 b8Q Kg8 b7 Rb3 Qbf4 Nb4 Bb2 c1R+ Kb6 Rc5 b8R Re5 Rc1 a1Q Kb7 Bf6 Ra8 Bg5 Qee3 Bc2 Qee4 Nf5 Nc6 Be7 Qdd4 Bd6 Ng5 Bb8 Q8b6 Rf6 d8Q+ Rf8 Bb5 f1N Q8d7 f2 Nh7 N1g3 Bf1 Nh5 Qa7 Nfg7 Qg5 Rf4 Qf6 Nf5 Qff7+ Kh8 Bc4 f1R Be6 Bf2 Qac5 Bg3 Qg1 Bf2 Qc3 Ba7 Qcd4 Nfg7 Bh3 Nf5 Nd8 Bd1 Rc7 Bc2 Qfe7 Kg8 Nc6 Qa3 Qf6 Qa1 Qff7+
1N1br3/1R2nKN1/6p1/1q1BB1QR/1r1Rq1nN/2r5/b1N2n2/Rkb1Nb1Q b - - 0 1 illegal: No possible last move
4Qq2/1RR2pnB/3nq3/1bb5/2R1q1RK/1QQ2knb/1r1QN1qR/B3Nr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 h5 g4 c5 b4 a5 g5 h3 e5+ Ke7 b6 a4 d6+ Ke6 g6 Kd5 b5 Ke4 b7 a3 g7 f3 Kg3 h2 e6 f2 e7 a2 d7 c4 d5 c3 d6 c2 b6 Nc6 b8Q Na5 b7 Nh6 g8R Nc4 Qc7 Rb8 Bb2 c1N Na3 h4+ Kh3 Rh7 Nc2 Ne2 Nb4 Ng3 Rc1 a1Q Bd3+ Kf4 e8R Qa6 Ba1 Nhf5 Re7 Qe8 Rg5 Ng7 Qc6 Rh6 Bh7 Rf6 Rg6 Rf5 d8Q Qa3 d7 f1B+ Qg2 Qe3 Qa5 Bd3 d8Q Qe2 Rc7 Bc5 Qb5 Qf8 Qc2 Nd6 Qde8 Qee7 Qd5 Ke3 Kg4 h3 Ne2 Rf6+ Kh4 Rf1+ Rg5 Bcf5 Qa5 Qe6 Qd2+ Kf2 Qd5a2 Ba6 Rc4 Bg4 Rg1 h1Q Qab2 Qc6 Rh1 Qce4 Nd3+ Kf3 Qac3 h2 Qb1 Bh3+ Rg4 Bb5 Qbb4 Ra8 b8R Ra2 Qbb3 Rc2 Rbb7 Rb2 Rg1 h1Q Rg2 Qg1 Rh2 Qg2 Ne1+
6nb/2R1Rpn1/n7/k2b2n1/bqB2B2/2rN3r/KR2qQB1/N1rRQBB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 g4 h5 e4 a5 d4 c5 Kd2 Kc7 Kc2 Kb6 Kb3 h3 d6 c4+ Ka2 f3 d5 c3 e5 h2 e6 f2 d7 a4 g5 c2 e7 h4 e8B h3 g6 a3 g7 Rh4 d6 Be7 Be3+ Rd4 Qe1 c1Q Ne2 Nf6 g8B Ra6 Nd2 Qd1 Nf4 Qe2 Bh7 Ng8 Nd3 Bf6 Rc1 Qe7 d8R Bh8 Be4 Bd7 Rc7 Ra8 Rg1 h1N Beg2 h2 Bf4 Bc6 d7 Ng3 Rdc8 h1B d8Q Qh4 Qf6 Na6 Re7 Ne4 Rcc7 Rc4 Bd7 Rc3 Be6 Ng5 Bc4 Rc8 Bh2 Rb3 Qb2 Rc3 Nb3 Rd8 Qc2 Rd6 Na1 Rh6 Bh3 Bhd5 Bhg2 Bd7 Rh1 Qf4 Bg1 Rh3 Rc8 Kb7 b6 Qd6 b5 Qb4 Rc5 Qa5 Qc1 Re3 Nb3 Bc6 Kb1 Rf3 Bh2 Qd1 Be2 Bd5 Rc7+ Kb8 b7 Ka7 Re1 Kb6 Bg1 a2+ Kb2 a1R b8R+ Bb7 Q1d2 Rc1 Na1 Rh3 Rf1 Qa4 Re1 Ka5 b6 Bf3 b7 f1N Qe3 Ng3 Bef1 Qd2 Rd1 Nh5 Qe1 Qf2 Qce2 Bd5 Q2d2 Qf3 Qdf2 Qb5+ Ka2 Ng7 Re2 Qc5 Rbe8 Qf8 Rb2 Qb4 Re7 Qe2 b8B Qc2 Rb7 Qe2 Bf4 Ba4 Rbc7
2N2b2/2p1Qbr1/BBq1knN1/4B2r/1N2bq2/Q1BNnbR1/3R1KBq/4r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 h5 e4 a5 d4 f5 b6 h3 g5 h4 d6+ Ke6 b7 a4 d5+ Kf7 g6+ Kf6 e5+ Kg5 b5 h2 d7 a3 g7 h3 e6 Kf6 b6 a2 d6 f3 e7 f4 e8B Nc6 b8N Nge7 g8N+ Ke6 b7 Bh6 Qa4 Rh7 Bb2 Na5 Nd2 Nc4 Nb3 Nd2 Qa3 Rg7 Be5 Ra5 Ne2 Nd5 Nc6 Ne4 b8B Qf6 d8Q Ne3 d7 Bb7 Rd1 a1R Rg1 h1Q Nb4 h2 Bg2 Rb1 Bc3 Rh5 Ne7 Qe5 Bg6 Nf6 Bd3 Be4 Nc8 Qb5 Qf8 Qc6 d8B Ra1 Nbc1 f2+ Kd2 f1Q Ba6 f3 Ncd3 f2 Ba7 Rb1 Bb6 Rc1 Be7 Rb1 Bd6 Rc1 Bf3 Qhg2 Bf4 h1B Bfe5 Qh2 Rg3 Ra1 Bg2 Rb1 Rc1 Ra1 Rc2 Re1 Ng1 Bf3 Nh3 Be4 Nc1 Qfc4 Ncd3 f1B Qd8 Be2 Qf8 B2f3 Nhf4+ Kd7 Ng6 Ke6 Rb2 Bd5 Qd8 Qf4 Ra2 Rf7 Rc2 Bf8 Rb2 Rg7 Rc2 Rg1 Ra2 Bfe4 Ke2 Bf3+ Kf2 Re1 Rd2 Bde4 Nge7 Bg6 Qe8 Bf7 Ng6+ Kf5 Qe7 Be4+ Rf3 Qh3 Bf1 Qh4+ Kg1 Bg2 Rg3 Bgf3 Kf2 Qh1 Qc5 Ke6 Bg2 Qh2 Qe7+
K2b2N1/RB3pr1/b1R1n3/R3bnQ1/q2R2b1/2b1BNN1/3Rr3/k2n1QbN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 h4 Ke5 d4+ Ke4 b6 a5 h5 c5 d6 g5 b7 c4 d5 a4 b5 f3 b6 c3 h6 c2 d7 a3 h7 a2 d6 Na6 b8R Nc7 b7 Nb5 Nc3+ Ke5 Ke3 f2 Rh2 g3 Ne4 g2 Nf3+ Kf5 Ng3+ Ke6 Ke4 g1B Be3 c1B Nh1 g4 Bg2 g3 Qf1 Qa5 d8Q Ne7 d7 Nf5 Qg5 Bb2 d8R Be7 Rd4 Re8 h8R Qa4 R8h5 Bc3 Rc1 Ra5 Ra8 a1B b8N Nc7 Ra7 Bd8 Nd7 Rg8 Nf6 Rg7 Ng8 Rb5 Rc2 Rb2 Rb4 Kd6 Rd4+ Kc5 Rd2 Ne6 R2h4 Kb5 Kd5 Ra2 Rc4 Be5 Rhd4 Bc3 Rc6 Rb2 Bf4 Ba6 e4+ Ka5 Be3 Ra2 Qb1 f1B Qe1 Be2 Qf1 Bd6 e5 Rb2 Nh4 Bg4 Be4 g2 Nf3 Nc5 e6 Be5 e7 Ne6 e8N Rc2 R2d3 Re2 Nef6 Kb5 Rd1 Ka5 R4d2 Kb4 Rd4+ Kb3 R1d2 Nc7+ Kc5 Ka3 Kb6 Ne6+ Rac7 Kb3 Ka7 Ka3 Ka8 Kb3 Bc2+ Ka2 Ne4 Kb2 Bd1+ Ka1 Neg3 Bf2 Nh6 g1N Ra7 Nh3 Ng8 Bg1 Bb3+ Re1 Bd5 Nf2 Rcc7 Nd1 Bb7 Re2 Rc5 Bh2 Ra5 Bg1 Rh6 Nc5 Rb6 Ne6 Rc6
N3b3/1K1n1Bq1/N3QBrN/1p2nn1B/4R1n1/bnkNNQ1B/1q2n2r/R7 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 e5 a4 b5 d4+ Kd6 g4 h5 a5 c5 a6 h3 g5 h2 f6 b3 f5 c4 f7 b2 f6 c3 g6 c2 g7 h4 a7 h3 Nd2 b1N Nc4+ Kc7 d6+ Kc6 d5+ Kc5 d7 Kb4 d6 Na3 Kd5 e4 Bb2 c1Q Ne2 e3 Nf4 e2 Qe1+ Qc3 Nd3+ Kb3 Ne3 Qe7 d8N Qc2 d7 Nb1 Ne6 Nd2 d8N Bd7 Nc7 Be8 Na6 Nh6 g8B Nd7 Bd4 Qa2 Kc6 Qb2 Kb7 Ng4 Bg2 Rc8 a8B Rc6 Rf1 h1N Rf4 h2 Re4 Rh5 Bh3 Ng3 Be5 h1N Bd4 Bh6 f8Q+ Qf7 Bc3 Nf5 Bd4 Re6 Be5 Qe7 f7 Rg6 Bh8 Qee5 Bf6 Kc3 Qa3+ Qb3 f8N Nhg3 Nfe6 Bf8 Bf7 Rh8 Qh1 e1N Qe7 Nef3 Nec7 Qb2 Qe6 Ne2 Qf1 Qd4 Qg2 Nfe5 Qf3 Rgh6 Bh5 Ba3 Nf7 Rg6 Nh6 Nb3 Kc8 Qd6 Bd5 Qe7 Kb7 Qg7 Na8 Rf8 Qg2 Nh2 Bd8 Ne7 Qeg4 Rf2 Q2f3 Rg2 Qgf5 Nhg4 Bf7 Rh2 Qe6 Nf5 Bf6
1K1b1R1r/Qb2b3/2r3B1/1N1R1R1n/1B2pr2/NB1n2Bk/q2BQ2R/2b1n1r1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 h5 Ke2 e3 Kf3 Kf7 Ke4 Kg6 Ke5 Kg5 d4 c5 f4+ Kh6 b4 a5 g5+ Kg6 b6 a4 f5+ Kh7 b5 e2 d6 h3 d7 h4 d5 a3 f6 Kg6 d6 Kh5 b7 Kg4 g6 a2 b6 h2 g7 c4 f7 h3 Nf3 c3 Nd4 c2 Na3 Ra4 Ndb5 Nf6 g8B Na6 b8B Nc5 b7 Nh5 Qd2 Qc7 d8R e6 Bg2 Be7 f8R Qc6 Bf1 Qg2 d7 Ra6 Bc7 Rc6 b8Q Bb7 Qa7 Qf2 Bh7 Kh4 Rf5 e1N Rdf8 Kg4 d8B Qe2+ Kd4 e5+ Kd5 e4 Bg6 Qf2 Bg3 Qg2 Rg1 h1R Bc4 h2 Ba5 Kh3 Bb4 Qf2 Rg2 Rf1 Qd1 h1R Bb3 Rhg1 Ke5 Qd2 Qe2 Rf4 Rb1 Qc3+ Kd5 Qa1 Be3 Bd8 Rd1 c1B Rd3 Qb2 Bed2 a1B Rf2 Qa2 Rd4 Rc8+ Kd6 Ncd3 Rdd5 Baf6 Rg2 Bfe7+ Kd7 Rc2 Rf2 Bc6+ Kc8 Bb7+ Kb8 Rc6 Rh2+
2q1R3/1kN1r1r1/R2BnB2/Q2Br1b1/1p1N2b1/2BnBR1n/Kn1Q4/1R1bb3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 e5 Kc2 b5 Kb2 c5 g4 Kc7 f4 h5 a4 c4 g5 h3 g6 b3 g7 h2 d6+ Kb7 d5 h4 a5 b4 f6 e4 f7 e3 f5 h3 f6 e2 d7 e1B d6 Na6 Na3 c3+ Kb1 b2 Ka2 b1N Bd3 c2 Qd2 Ra7 Ne2 Nh6 g8R Rh7 Nb5 Nc5 Bc4 Na3 Ned4 Ne6 Nc7 Be7 f8R Rg7 f7 Ng4 Rg1 Qe8 d8B h1B d7 Bg5 Bf6 h2 d8B Nf2 Bd5+ Qc6 Re8 Nc4 f8B Bf3 Bd6 h1R Rgf8 Rh5 Bfe5 Bd7 Bdf6 Bd1 Rf7 Nh3 a6+ Kb6 Rb1 Nb2 Ra1 Rb7 a7 Bc8 a8Q Qc3 Ncb5 Re7 Nc7 Qc6 Qa5+ Kb7 Qg2 Bd7 Be3 Bc8 Qd2 c1N+ Kb1 Ncd3 Ka2 Nec5 Rf1 Bcg4 Rb1 Ne6 Rf3 Bf4 Rff8 Rf5 Ra8 Bh6 Rfe8 Bg5 Bb3 Qd7 Ra6 Qc8 Bd5+ Kb8 Nc6+ Kb7 Bc3 Re5 Nd4+
N1q1r1Rb/2r3N1/1Q3p2/NBR2n1N/b1Q5/1n2BN1r/1K1nB2B/3kn1br b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 a5 g4 c5 b4 h5 e4 f3 b6 a4 e5+ Ke7 b7 h3 g5 a3 d6+ Ke6 d7 Kf5 g6 Kg4 d5 h4 d6 c4 g7 a2 b5 c3 b6 h2 e6 h3 e7 Kg3 e8B Kf2 Qd5 Ke1 Qc4 f2 Be3 Rh7 Be2 Ne7 g8N f1N Nf6 Nd2 Nh5 Nbc6 b8Q Ne5 b7 Nd3 Qbc7 f6 b8B Bg7 Qb6 Bh8 Bc7 Nf5 Na3+ Nb1 Kb3 c2 Nb5 c1B Bb8 Ba3 Nc7 Bc5 Kc2 Bb7 Kb3 Qc8 d8N Bf3 d7 Bc6 Nde6 Bb5 d8N Bd4 Na6 Rc7 Neg7 Bd7 Kc2 Bc5 Nb7 Ba4+ Qbb3 Ba7 Bb5 Bb6 Na5 Ba7 Bd1 Nd2 Rc1 a1N+ Kc3 Bb6 Rc2 Bc5 Be2 Ba7 Qb4 Nab3 Qd6 Nbd4 Qb6 N4b3 Bf1 Kd1 Nf3 Ne1 Rg1 h1R Kb2 h2 Bd3 Rf7 Bg3 Re7 Nc7 Rb8 Bd6 Rb7 Bf1 Re8 Na8 Rc7 Rg3 Rg1 Rg6 h1R Bh2 Rg3 Rg5 Rh3 Rc3 Nh4 Rc5 Nf5 Rd3 Re6 Rd8 Re4 Rf8 Re8 Rg8 Qb7 Bef4 Nb1 Qd6+ Nfd4 Rg5 N1d2 Bd3 Bc5 Qb6 Qc8 Re5 Nf5 Bh6 Bg1 Rc5 Nd6 Be3 Nf5 Be2#
3rq1r1/1krQN2R/2p1bN2/rQB4n/3KQ1Qn/bBBbnbB1/5B1R/8 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 f5 g4 h5 d4 a5 e4 c6 e5 Kc7 d6+ Kb6 d5 a4 g5 h3 e6 a3 g6 f3 Ke3 f2 d7 f4+ Kd4 a2 d6 h4 e7 f3 e8Q h2 g7 h3 Be3 Na6 Nd2 Nc5 Ne4 Nh6 g8Q Nd3 Ne2 Nc1 N2c3 Qg5 d8B+ Ka7 d7 Qe7 b6+ Kb8 b7 Nd3 b5 Nf4 Qg4 Rg8 Bc4 f1N Ba5 f2 d8B Nh5 Nf6 Be6 Ncd5 Ra7 Rb1 a1R Bc3 R1a5 Bb3 Ra8 Qd7 Qe8 Qdf3 Ba3 Be7 Ka7 Bf8 Rd8 b8B+ Ka8 b6 Nf5+ Kc4 Nh4 Bg3 Rb8 Bed4 Rd8 Bfc5 Ne3+ Kd3 f1R Qfe4 Rf4 b7+ Kb8 Rhg1 h1B Rb2 h2 Ne7 Bf3 Rf2 h1B Rh2 Bhg2 Rgh1 Bh3 Qg7 Bhf5 Qg4 Nd5 Bdf2 Ne3 Kd4 Bg6 Bd6+ Ka7 b8Q+ Ka6 Nh7 Rf7 Nf6 Bh7 Bc5 Rfg7 Qed5 Bd3 Qbf4 Rh7 Qfe4 Rhg7 Bc7 Kb7 Qdg5 Rc8 Bcg3+ Rc7 Qgd5 Rf7 Qc4 Rff8 Qb5+ Ka8 Qh7 Qc8 Bb6 Nhg2 Qd8 Kb7 Rh4 Ng7 R1h2 Re8 Rh6 Nh4 Qhe4 Nh5 Rh7 Ref8 Qdd5 Qd7 Qd6 Rd8 Qdd5 Qe8 Qd7 Kb8 Ba7+ Ka8 Bb6 Kb7 Bc5+
4nB2/B1rk1NRr/pr6/bb2n2R/4RNBn/1Q1QbR1B/2nq2R1/3b3K b - - 0 1 illegal: No possible last move
2BR1q2/N7/2q1k1bn/1N1NbnRr/K3b1N1/pQr1B3/b3nNR1/2Q1n1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 g4 c5 e4 f3 d6 f2 b6 f4 g5 c4+ Ka4 h3 b4 h2 e5 h4 b7 c3 d5 f3 g6 h3 b5 c2 g7 Ne7 g8N Ra7 b6 Nbc6 b8R Nf5 b7 Nb4 Be3 c1N Na3 Rh5 Ra2 Nh6 Ba6 f1B Rg2 f2 Ne7 Bd3 Nb5 Ne2 Qc1 f1N Ra8 Bc4 b8Q Bg7 Bb7 Nfg3 e6+ Ke8 Ba6 Nc2 d7+ Kf8 d6 Be5 Qb6 Rc7 Nd5 Ne1 e7+ Kf7 e8N Ke6 Nef6 Qf8 d8R Ngf5 Ng4 Ba2 d7+ Rc6 Qb7 Rc3 Qb8 Bb7 Ra7 Ba8 Bc8 Bc6 Rc7 Ba8 Rc5 Bb7 Ndf6 Be4 Nd5 Bd3 Nf2 Bdb1 Nf3 Bd3 Rhg1 h1B Nh2 Bdb1 Rg4 Bhe4 R4g2 Bbd3 Nhg4 h2 Na3 h1Q Qb3 Bdb1 Nb5 Ng7 Ka3 a4 Kb4 a3 Ka4 Kf5 Rc6 Bbc2 Rg6 Bcb1 Rg5+ Ke6 Qbb2 Bbc2+ Qb3 Ngf5 Ba6 Ng8 Ndf6+ Bd5 Rg3 Qf3 R3g2 Bcb1 Ra8 Nfg3 Rc8 Bg6 d8N+ Ke7 Rb8 Nh6 Nc6+ Ke6 Nca7 Ngf5 Rd8 Qe4+ Ka5 Qc4 Bb7 Bf3 Nd5 Qc6 Ka4 Be4 Bc8+
5NbQ/Qrb1RNB1/1Rqn4/2p2n2/2BR2k1/3nR1rq/K2b1n1b/2QQ2R1 b - - 0 1 illegal: No possible last move
Qqb3qk/N1r5/2B1r2p/1QQbn1n1/n4N1n/K2NNb2/1QRB4/RQb5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 c5 Kd2 f5 Kc2 Kf7 Kb3 Kg7 e4 a5 g4 a4+ Ka3 h3 b4 f3 e5 h2 g5 h6 b6 c4 e6 f4 e7 c3 e8Q f2 d6 f3 d7 c2 d5 Ra5 g6 Ra7 b7 Be7 d6 Bg5 b5 Nf6 b6 Nh7 Bd2 c1N Qc2 Ne2 Nh3 Nc3 Bb5 f1B Nf2 Bc4 Nd3 f2 Bc6 Bd5 Rc1 h1B Qe3 f1N Qb2 Rf8 Rc2 Bhf3 Qc5 Ng3 Qbb5 Kg8 g7 Nf5 Qb2 Qe8 d8N Nh4 d7 Rf6 Ne6 Qg6 d8N Nd7 b8Q Rc7 b7 Ne5 Nef4 Re6 Qa8 Qf7 b8Q Qe8 Kb4 a3 Qbb5 a2 Na3 Na4 Nc4 Qg6 Ne3 Qf7 Rb1 a1Q Qab7 Qa2 Ra1 Qb1 Ka3 Qf8 Bd7 Qg1 Nc6 Qd6 Na7 Qb6 Qa8 Qb8 Ne2 Bf4 Bc6 Ng5 Qb1 Bg3 Nef4 Be1 Bc3 Bd2 Q5b2 Bc1 Bd2 Kf7 g8Q+ Kf6 Qd8+ Kg7 Qd7+ Kh8 Qe8+ Kg7 Bd7 Ne4 Ra2 Kh7 Bb5 Qg8 Ra1 Ng5 Qec6 Kg7 Qa6 Kh7 Bc6 Kh8 Qab5
2b1BQr1/qnb1n2r/1n3pNb/BBN2BQ1/q4Q2/1nQR3B/4k3/1KRb4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Bb7 e4 Ke7 g4 Kd6 b4 Ke5 c4 d5 Kc2 h5 c5 a5 g6 f3 c6 h4 c7 f2 c8B f6 b6 a4 g7 a3 b5 h3 g5 h2 g6 a2 Qe1 Rh7 Bf5 Nd7 B1h3 f1N Nd2 Kf4 e5 Qb8 e6 Qa7 e7 Ba6 b7 d3+ Kb2 Re8 b6 d4 Ne2+ Ke3 Ne4+ d2 b8Q d3 b7 Nb6 Nc5 Kf3 Nf4 d1Q Qee5 Qa4 Bd2 Kf2 Rc1 a1B+ Kb1 Bd4 Qe6 Be5 Qb3 Bc7 Bc3 Bc4 Bb4 Be6 Qc3 d2 Qa8 Rh4 Rg1 d1B Rg3 Rh7 Rd3 h1N Ba5 Nhg3 Qd8 Ne4 b8Q Be5 Qdc7 Nd6 Qbd8 Nb7 Qa8 Nh6 g8B Rd8 Bf7 Ng8 g7 Bd7 Bc4 Nd2+ Kb2 Bd6 Bb5 Nb3 Kb1 Re8 Qad8 Bc8 Qb8 Bc7 Qd6 Bd7 Qd8 Bc8 Qde5 Nh6 g8Q Bg7 Qe4 Bf8 Qg4 Ng8 Ng6 Bh6 Qg5 Rf8 Qef4+ Ke2 e8B Ne7 Bf7 Rfh8 Qf8 Rg8 Bfe8
1r1r1NQr/q1R2Bb1/B4pRr/K4QBN/n3bb1N/8/2qNN1B1/2n1kb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kf6 e4 Ke5 d4+ Kf6 Kd2 Kg5 Kc3 h5 e5 c5 e6 a5 e7 f6 e8B h3 d6 Kh4 d5 Kg3 b6 Kf2 d7 f3 b7 h4 d6 a4 b5 h2 g5 a3 b6 h3 g6 a2 g7 c4 Kb4 c3 Bf7 c2 Ba6 Rh4+ Ka5 Nh6 g8B Ng4 Nd2 Rh8 Ne2 Ne5 Rg1 h1R Rg6 Qc7 d8Q h2 d7 Nd3 Qe8 Rh6 d8N Nd7 b8N Bg7 Ne6 N7c5 Nd7 Bb7 Ndf8 Rb8 N6f4 Be4 Nh5 Na4 Qd8 Qc6 b7 Rg1 Bd5 h1R Bgf7 Re1 Rb1 a1Q Rb3 Qd4 Rc3 Qa7 Qe8 Rd8 b8N Rh3 Nbd7 Rg1 Bb2 c1B Qc2 Ke1 Ne5 f2 Qb1 Qc8 Rc7 f1B Bd4 Rh4 Be3 Rgh1 Bg5 Rh8 Nhf4 R4h6 Nh5 Qf5 Qe6 Qff2 Qb5 Qfc5 Qf5 Qc2 Qb8 Rg8 Ndc4 Bf4 Nd2 Nc1 Nef3+ Kf2 Nh4 Ke1 Qb3 Rgh8 Bb7 Rh3 Qbe6 Rb3 Bd5 Rbb8 Qc8 Bd3 Bg2 Be4 Ne6 Rd4 Qg8 Rdd8 Nf8
Q3b2b/pn3BQK/1nrRb2B/1B1n2NQ/1nBk4/1Qqr4/1R1N1q2/1Q5b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 g4 c5 d4 h5 g5 f3 d6 f2 d5 h3 g6 h2 d7 h4 Kf5 h3 d6 Nf6 g7 Ne4 g8B Rh6 b6 Qc7 b5 Bg7 b7 Bh8 Nd2+ Kd4 b6 c4 Ra6 Nc5 e4 c3 e5 c2 Bb5 f1N e6 Ne3+ Kg5 f5 d8Q f4 d7 f3 e7 f2 e8B f1B Qh5 Nd5 Bef7 Rc6 Qf8 Bc4 d8Q Be6 Kh6 Nbd7 b8Q Nb7 Qdg5 Bb3 Qgg6 Ba4 Kh7 Qe5 Qbe8 Rd8 Qfg7 Qf6 Qg3 Qe5 Qb3 Qf6 Ba3 c1N Bf8 Nd3 Qb1 N3b4 Ngf3+ Kc3 Re1 h1Q Ng5 h2 Re2 Qg1 Rf2 h1B Re2 Nd6 b7 N7b6 b8Q Nb7 Qa8 Rd7 Qeb8 Kd4 Rg2 Qf2 Qg3 Rdc7 Qgb3 Rc3 Rh2 Rd3 Rg2 Nd7 Rd6 Nb6 Qgg6 Qe5 Bh6 Rc6 Qg7 Rc7 Ba6 Be8 Bb5 Rc6 Nde4 Qff6 Rb2 Qf2 Nd2 Kc5 Bc4 Bg4 Bb5 Ne3 Rg6 Qc3 Bfc4 Ned5 Rd6 Be6 Qf8 Kd4 Bf7 Rc5 Qg8 Rc6 Qg7+
1bk1bB1K/Q1q5/n5QQ/r2N2r1/4q1pr/2Bn2R1/B1nR1pQ1/2N1BqB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Ke3 c4 h5 c3 e6+ Kc7 d6+ Kb7 d5 a4 Kd4 g3 Ke5 f2 h6 f4 b6 f3 b5 g4 d7 g2 d6 a3 h7 a2 e7 c2 e8Q Ra3 Rh3 Na6 Qd5+ Kb8 b7 Qb6 d8Q Qa7 d7 Nh6 Kf6 Be7+ Kg7 Rc3 Qb6 Rf8 h8B Bg5 d8B Re3 Be7 Nb4 Nc3 Re5 Bc4 f1Q Qeg6 f2 Bd2 c1N Nge2 g1Q Qg2 Bd7 Be1 Na6 Nd5 Nd3 Rg3 Qh1 Rd1 a1R Ba2 Bf4 Nc1 Rg5 Rd2 Be8 Qc6 Rf6 Bf8 Nf5+ Kg8 Rd6 Bc3 Nd4 Qb6 Nc2 Qe3 Qhg1 Kh8 Qc5 Qee6 Qh1+ Qh6 Qc7 Qg6 Ka7 b8B+ Kb7 b6 Kc8 Bb1 Ra3 Ba2 Ra5 b7+ Kd8 Qgh3 Qe4 Qg2 Rd7 Ba7 Rg7 b8Q+ Kd7 Qbb6 Kc8 Bb8 Rh5 Qa7 Rh4 Qgh7 Rg5 Q7g6 Qce7 Bbe5 Qc7 Rh3 Be3 Bh2 Bf4 Rg3 Qcc4 Qgh7 Bb8 Bg1 Qc7 Q7g6
Q7/nrNr1rbq/1Q2B1nN/4kB1p/bBR2n1q/2b2p2/BR1N4/BNK5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 g4 a5 e4 c5 b4 h5 b6 f5 b7 c4 b5 h3 g5 a4 b6 h2 g6 a3 e5+ Ke7 e6 Kd6 e7 a2 e8B f3 g7 f4 Bg6 f2 Bb2 c3+ Kc1 c2 Bc4 f1R Nf3 Nc6 b8B+ Qc7 b7 Ra6 Nfd2 f3 Bf5 Nf6 g8B Bh6 Bge6 Rf2 Qg1 Bg7 Ba7 Ng8 b8Q Ra5 Qa8 Rh7 Ba3+ Rc5 Bb4 Bd7 Qg6 Be8 Rg1 Nge7 Rg4 Qb7 Qf6 Ng6 Qfd8+ Bd7 Qb6 Rg2 Rf4 Rg4 Re4 Rf4 Re2 Ke7 d6+ Kf6 d5 Rb5 Bb3 Be8 d7 Rd4 Rf2 Ke5 d8N Qd7 d6 h1Q+ Nf1 Qh3 Nfd2 Qh4 Bb8 Na7 Nf7+ Kf6 Nh6 Ke5 Bbc4 Qb7 d7+ Rd6 Kb2 c1N d8N Ne2 Bcd5 Nef4 Kc1 Kf6 Re2 Rd7 Re4 Rf7 Bb3 Rd5 Rc4 Ba4 Bc7 Rdd7 Be5+ Kg5 Nc6 Qc7 Nd4 Qb7 Nb5 Qe4 Bed6 Kf6 Bf8 Ke5 Nc7 Bf6 Bg7 Qd3 Bh8 Bg7 Na3 Qe4 Rb1 a1B Ba2 Bc3 Rb2 Bf6 Rd4 Rd8 Rc2 Ne7 Ndb1 Be1 Bg4 Rff8 Bed5 Rg7 Bc8 Qh7 Ne8 Neg6 Bf5 Rb7 Nc7 Rd7 Bde6 Rff7 Rdd2 Bg3 Rh2 Be1 Rc5+ Kd4 Nc4 Bc3 Rc2 Ba1 Ncd2 Be5 Bg7 Bf6 Bf8 Be5 Be7 Bg7 R5c4+ Ke5 Bec5 Bd4 Bc3 Rfe7 Ba1 Rf7 Bb4 Bc3 Rb2
1b2Rn1r/8/B2N4/1K1p2q1/RNpN2B1/qQr2QBb/2N1B1kn/qn1Bb3 b - - 0 1 illegal: No proof kernel
4k3/Nn4q1/QQ2KRQ1/1rpQ1N2/3N1p1N/BNqrbr2/2nn2b1/b4B1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 f5 d4 a5 Rh2 a4 e4 h5 Bc4 a3 b4 a2 g4 h3 g5 h4 b6 Ke7 g6 Nf6 g7 Rh7 g8Q Ba6 d6+ Kd7 e5 Ng4 b7 Qa5 b5 Bg7 b6 Qe1 d5 Ra7 Rg2 Ne3 Rg6 h2 Qd3 h1R Ba3 h3 Nd2 Nc6 b8Q h2 b7 Rh5 Qh7 Nd8 e6+ Ke8 Rh6 Bd4 d7+ Kf8 d6 Nc2 Qa8 Bh8 b8Q Rb7 Qd5 Bd4 Be2 Rg5 Nb3 Qc3+ Bd3 Bc4 Qa6 Rb4 Rb1 a1B Qbb6 Nb7 d8N Rb5 d7 Rg6 Re1 Be3 Nc6 Rg2 d8N Rd2 Nc1 Rd1 Na7 Rd2 Ndc6 Bb3 Qe4 Bd5 Nd4 Bc6 Be2 Rd3 Ncb3 Bd5 Qd7 Bc6 e7+ Kf7 Kg2 f3+ Kg3 f2 e8N+ Kf8 Nd6 f4+ Kg4 f1N Kf5 Bd5 Ngf3 Nd2 Nh4 Rf1 Kf6 Bc6 Ke6 h1Q Rb1 Qg2 Rf6+ Kg8 Re1 Qg7 Qg6 Bg2 N6f5 Rf2 Qd5 Rf3 Qh5 Qg3 Rh1 Qg7 Rg6 Kf8 Bf1 Ke8 Rf6+ Qg6 Qh6 Qg7 Qg6+
1N1B2R1/3Rqn2/1n1p1rq1/1pbnBkBq/3R3R/1N2B2b/QK4B1/Q1r3r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 h4 Kf6 f4 e5 c4 b5 Kc2 g5 a4 d6 a5 b3+ Kb2 e4 c5 e3 c6 e2 a6 e1N c7 g4 a7 g3 h6 g2 h5 d3 h7 d2 h6 Nc6 Ra4 Nb4 Rh4 Rb8 a8Q Nc6 Nf3 g1R Bg2 Nb4 Ne5 Nf3 Nd7+ Kf7 f6 Kg6 f7 Be7 f8B Nf6 f5+ Kg5 Qf1 Ng8 f6 Kf5 f7 d1Q Nd2 Nd5 Rad4 Bg5 Qa2 Nb6 Be7 Nf6 f8R Be3 Rf7 Rf8 h8B Ra8 Rg7 Nfd5 h7 Rf6 Nb8 Ra6 Qe1 Ng5 Rf7 Qe8 Bd8 Qh5 Rd7 Nf7 Bg7 Ra7 h8B Qe7 Bh6 Ra4 Bg5 Rc4 Ne4 Rc3 Nc5 Bf2 Bce3 Rc1 Ka3 b2 Nb3 b1Q Bg7 Qbe4 Kb2 Qeg4 Qea5 Qg6 Qa1 Q4h5 Q5a2 Be1 Bh8 Bb4 Bg7 Bc5 Bh8 Bb7 c8R Ba6 Bc7 Bb7 Rg8 Bc8 Bd8 Ke5 Rb7 Bh3 Rd7 Kf5 Bg7 Re6 Be5 Rf6 Qa6 Rcf1 Q6a5 Rc1 Q5a2
bbB4B/Q2QBN1k/1Nppq2N/1n3B2/6r1/Nrn1R2q/1RKb2n1/6Nr b - - 0 1 illegal: No possible last move, all moves rejected
Rqr1Q1r1/Rn3bqp/B2b1r2/3R3p/3Qq1N1/Bk1NB1n1/4Rn2/3BK1B1 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 h5 gxh5 cxd5 Bd6 Qb3 Bb4 Qd1 Bf8 d4 Ke7 g4 Kd6 b4 f5 e4 c5 g5 a5 e5+ Kc7 e6 Kd6 e7 c4 e8Q a4 b6 c3 g6 f3 b7 a3 b5 f4 g7 c2 b6 a2 Na3 Na6 b8B+ Nc7 b7 Be7 Be3 c1R Rh2 Ra4 Nh3 Be6 Rc2 Nh6 g8B Ng4 Ba7 Bf7 b8R Ne6 Ba6 Nc5 Nf2 Nb7 Nd3 Nf2 Ra8 Qb8 Bb6 Rb4 Ba7 Rb6 Nc4+ Kc7 Nce5+ Kd6 Ng4 Rc6 Rb1 a1Q Rb5 Rc8 Ra5 Rb1 Raa2 Rb6 Ra4 Bg6 Be6 Rg8 Bd7 Qb1 Raa2 Bf7 Ba4 Rbc6 Ra1 Kc7 Bc5 Bd6 Ba3 Kb6 Ra7 Ka5 Bb3 Bc7 d6 Qb2 d5 Qg7 d7 Rf6 d8R Be5 Rd7 Bd6 Ba2 Ka4 Qd2 Bf8 d6 Be7 Bb1 Kb3 Rd8 Bf8 d7 Bd6 Qc3+ Ka4 Qd4+ Kb3 Qee4 Nh3 Qe8 f2+ Ke2 f1N Ke1 f3 Bg1 Nf2 Ra8 Rc6 Ra7 Qc7 Rda8 Ng3 d8B Qb8 Bb6 Rc8 Raa2 Qc7 Rc5 Qb8 Rac2 Nfh1 Rd5 f2+ Kd2 f1Q Be3 Qh3 Ke1 Qh4 Bc7 Qh3 Rd2 Ne4 Ra2 Bc5 Bh2 Qg2 Bhg1 Nhg3 Re2 Bd6 Bc2+ Ka2 Rd2 Nf2 Re2 Qe4 Bd1+ Kb1 Rb2+ Ka1 Rc2+ Kb1 Rc7 Ka2 Rc2+ Kb3 Re2+
1bb2qRq/2p1rR1N/nQ6/RB3q2/bQQ5/QNnk1pB1/n2r1Q1K/7R b - - 0 1 illegal: No possible last move, all moves rejected
1N3rq1/Br2R3/1BKQ1Qb1/Q1Q3nQ/2r5/1n4Bn/R1kbNnpp/3n1B2 b - - 0 1 illegal: No proof kernel
NrN3K1/bNn2nbQ/Q1pRrk2/2r2BQ1/3R4/r3Q1r1/3pqBb1/1N3N2 b - - 0 1 illegal: No proof kernel
4nqb1/3Q2k1/p2R3p/1B2b1rQ/b3r1BN/1N1n4/Kb1RB1R1/bB1R1nB1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 c4 d5 Kc2 e5 Kb3 e3 f4 h6 g4 a6 f5 e2 g6+ Kf6 g7 e1B b6 d3 c5 d2 c6 e4 g5+ Kf7 b7 d4 g6+ Kf6 c7 e3 Be2 d3 Nf3 Rh7 Ka2 Bb4 Nh4 Ba3 b4 Bf2 b5 Nd7 b8Q Qe7 b6 Bb7 c8B Qe8 Rg1 Bd6 Qa7 Nc5 Rg2 Qf8 Bd7 Rc8 Bb5 Re8 Bb2+ Be5 Bd4 Bc8 b7 Bd7 Qh1 d1N b8R d2 Rd8 Nd3 Qh2 Bc8 Qd7 Bg1 Bg4 e2 Qh3 Bh2 Bg1 Ne3 Qf3 d1B Nd2 e1B Nb3 Bc2 Rd1 Ba1 Qfd5 Re4 Q5f7+ Ke5 f6 Bec3 Rdd2 Bcb2 Be2 Ne7 g8B N7f5 g7 Nf1 Qh5 Bb7 f7 Kf6 Rd1 Bd5 Rd2 Rh8 Bh7 Bhe5 g8B Nd6 Bf5 Ne8 Bfg4 Kg7 Bh7 Rg8 Bg6 Qe7 f8R Bd1 Rf4 Bf7 Rf6 Qf8 Re6 Bc2 Nc1 Ba4 Nb3 Kh8 B6f5 Rg5 Rd6 Bg8 Rc8 Qf7 Rc1 Kg7 Rcd1 Ne1 Bbd3 Qe7 Bb1 Nd3 Be6 Qf7 Bc4 Qe7 Bb5 Qf7 Qf5 Qf8 Qd7+
R1NB4/1Q1Bp3/K1nb3n/Qrq5/1BnRr3/1k1Nn1Qn/1p4B1/rbQ4Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 b5 a4 c5 f4 h5 g4 b3 f6 b4 Kc4 h3 Kb5 c4 d4 h2 a5 b2 d6 Ke6 d5+ Kf7 a6 c3 a7 b3 d7 c2 d6 Ke6 g5 h4 f7 h3 f5+ Ke5 f6 Ke6 g6 Rh6 g7 Nc6 Na3 b1R Nc4 b2 Bg2 Qc7 d8Q Rh4 d7 Re4 Nf3 Nh6 g8Q Rb8+ Nb6 Bg7 Bd2 c1N a8B Nb3 Qc1 Nba5 Rd1 h1N Ne5 h2 Nd3 Nc4 Bb4 Nf2 Ra6 Bb7 Nc8 Kd5 f8Q+ Kd4 f7 h1N Qfe8 Be5 f8Q Nh3 Qf1 Ra1 Qg3 N1f2 Qh1 Nfg4 Qh5 Qd6 Qc7 Nge3 d8B Kd5 Qa5 Qc7 Qhf3 Bd6 Na7 Bc8+ Bb7 Be6 Nc8 Bf5 Ra8 Bh7 Ka6+ Kd4 Na7 Bg6 Bc8 Rb5 Bg4 Kd5 Qf5+ Kd4 Qd7 Qc8+ Qb7 Qf5 Rd2 Qc5 Rd1 Nf7 Nc8 Re5 Bd7 Nh6 Nf2+ Bd3 Rf1 Bb1 Rg1 Re4 Rd1+ Nd2 Bc3+ Kc4 Bb4+ Kb3 Bf3 Bf4 Bg2 Nc4 Rd4 Bd6 Nd3
1K1n2B1/r2p1b1p/1b5q/1Q1b4/Qn5B/2k2RN1/BNrQ2rB/r1R2QQr b - - 0 1 illegal: No possible last move
n1B4Q/RK2kbNr/2rRN3/r4Nn1/1bp4b/b6Q/1NR1qp1R/N3n1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 g5 d4 c4 e5 a4 e6 f3 Ke3 f4+ Ke4 a3 d6 a2 Kd5 g3 e7 f2 h5 f3 d7+ Kf7 e8N g2 h6 g4 h7 g3 b6 Qh4 d8R Bg4 b5 Bh6 b7 Na6 Kc6 Nc7 b8N Bf5 b6 Qg4 d5 Bg5 d6 Qh4 b7 Qd4 d7 Bc2 Qd3 Qe3 Rh2 Qe2 Nc3 Nh6 Ng7 Ke7 Be3 Nf7 Nd1 Ra5 Nb2 Na8 Na6 Bh4 b8R Ng5 Nb4 Bd1 Rc1 a1N Rb7 Nc2 Ra7 Ne1 Kb7 Bc2 Qa3 Bg6 Rc2 Bf7 Qb3 Qd1 Bd3 f1R Ne2 g1B Nd4 g2 Bf5 Qe2 Qc3 Bgf2 Qd3 Bfg3 Bg1 Bb8 Be6 Bd6 Qf5 Rf2 Qh3 Rf1 N4d3 Rf2 Nc1 Bb4 Ncb3 Ba3 Na1 Rf1 Bf2 g1B Be3 Bgf2 Bg4 Bfg3 Bg1 Bgd6 Bf5 f2 Bg4 Rf8 h8Q Bdb4 Ndf5+ Kf6 Rb8 Rc8 d8N Rcc5 Nde6 Rc6 Nh6 Ke7 Rd8 Ng2 Bf5 Rb1 Rd6 Ne1 Nc7 Rd1 Bc8 Rd3 Nce6 Rf3 Ng4 Rf6 Ne3 Rh6 Qg8 Rh5 Qh8 Rh7 Nef5+
1RR3rB/r4bR1/Q1bp4/3N2KN/1bn2nn1/3BrR1q/pQ2kNNR/7n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 Kf6 c4 Kg5 g4 Kf4 b6 h5 g5 e5 g6 a5 b5 d6 g7 h3 b7 e4 b6 h2 f6 h4 f7 h3 c5 d3 c6 a4 c7 a3 Qe2 a2 Bb2 Qf6 Nc3 Qh4 Nd5+ Kg5 Ke3 d2 f4+ Kf5 Qa6 Kg4 f5 d1R f6 Nc6 b8Q Ne5 b7 Be6 c8R Nh6 g8N Ra7 Bd3 Bg7 f8N Bf7 Ng6 Rd2 Bc2 Rd3+ Ke2 e3 Ngf4 Ra3 Ng2 Nc4 Rf1 Qh5 Rf3 Qf5 Bc3 Qd7 Kd3 e2 Ke4 e1N Bd4 Nd3 Ba1 Bh5 f7 Nf4 f8R Bc3 Rf7 Bb4 Re7 Bf7 Ngf6+ Kg5 Nh5 Kg4 Bb2 Rg8 Bh8 Rd3 Ne2 Ra3 Nc1 Rc3 Nd3 Rb3 Re1 h1N Re2 h2 Nf2+ Kg5 Qc7 Qh3 b8R Ng4 Qcb6 Ra3 Ne1 Kh4 Kf5 Re3 Qbb7 Be8 Rg7 Bf7 Ne4 Nhf2 Qbb6 h1B Qd4 Bg2 Qb2 Nh1 Rd2 Bf1 Rh2 Bg2 Rf1 Bf3 Nf2 Bg2 Nhf6 Kg3 Kg5 Be4 Ng2 Kf3 Nh5 Ke2 Nd3 Bf5 Rf3 Bd7 Nf2 Bc6 Bd3+
6q1/qBQ4N/4QQ1B/bkq1p1R1/3nb2K/QqQ3n1/1p1q1rrB/R5BN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 b5 f4 h5 Kf2 e5 g4 c5 g5 h3 Kg3 h2 a5 b3 a6 c4 f6 c3 f5 b2 f7 c2 a7 b4 g6 b3 f6 Rh7 d6 Kc6 d7 Bc5 f8B Re7 g7 Qe8 d8B Bg4 f7 Ba3 Kh4 Bf3 Nc3 b1Q Nge2 Nh6 g8Q Be4 Ng3 Bb4 Qd3 Ba5 Bf4 c1Q Rg1 Qd2 Nd5 h1Q+ Bh3 b2 Qc3+ Kb5 Bb6 Qa2 Nf6 Qf3 d5 Nc6 d6 Nd4 d7 Re6 Nh7 Rg6 Nh1 Rg2 d8Q Qee6 Qcc8 Qfb3 Qc3 Rf2 Bg2 Nhf5+ Kg5 h4 Qdc7 h3 Bh6 h2 f8Q Qe7+ Qf6 Ng3 Qe6 Qc5 Kh4 Rg8 a8Q Rg6 Qg4 Qg8 Qge6 Qb3 Qaf8 Nh5 Bf3 Rgg2 Qfd6 Ng3 Ba7 Bg6 Bb7 Be4 Qdf8 Qcc4 Qa3 Qc5 Bb6 Re2 Be3 Qcc4 Qed7+ Nc6 Qff7 Nf1 Qaf8 Rg7 Ng3 h1Q+ Qh3 Qf3 Qa3 Qf2 Bef4 Qcb4 Bbe3 Qbd4 Rg2 Qa7 Qhe6 Qg1 Nh1 Rg5 Rf2 Rg2 Bh2 Ng3 Rf5 Qf2 Qff6 Qg1 Bef4 Qgc5 Be3 Nd4 Beg1 Ref2 Rg5
1b1n2b1/1N3N1n/2b1p3/BR1BR1Q1/k3B1Kb/1qb4p/qQR1B3/1r1r1B1R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Ke2 a5 g4 d5 c4 Kd7 f4 h5 b4 h4 b6 Kc6 b5+ Kc5 b7 Kb4 c5 a4 b6 a3 c6 e3 Kf3 a2 c7 e2 g6 e1B f5 d3 g7 d4 f6 d2 f7 d3 g5 h3 g6 Na6 b8Q Qd7 b7 Qd6 Nc3 Bh4 Ne4 Bg5 Nc5 Nf6 g8B Bd7 c8B Qe6 g7 Nc7 Bh7 Bh4 g8B Bc6+ Be4 Nh7 Bb2 Ra6 Qc1 Rb6 Bc3+ Kb5 Ba5 d1B+ Kf4 Bb3 Nf3 Bg7 f8R Bc3 Rb1 a1B Ng5 Qd5 Rh2 Ne6+ Kg4 Nd8 Rf5 Bab2 Re2 d2 Nf7 d1Q Qg5 Be5 Be6 Bbc3 Rf2 Q5d2 B6d5 Qa2 Rf5 Qd3 Rc2 Bh2 Qe5 B2g3 Qef6 Bb8 Re5 Qc4 Be2 Qd3 Rh1 Bc4 Nd7 Ka4 Qf2 Rb1 Bf1 Ba7 b8R Bb3 Rb5 Bb8 Bc4 Qd1+ Bce2 Bc4 Rc1 Qdb3 Rc2 B4d5 Nh6 Bc4 Bgd5 Rf8 Qh2 Rf3 Nf7 Rd3 Bf5 Rdd1 Nc5+ Ka3 Nb7 Ka4 Bdf3 B4d5 B5e4 Bc4 Nh6 Bg8 Nf7 e6 Bd5 Rbc1 Bfe4 Ra1 Qf2 Rab1 Qd4+ Bb4 Qa1 Bc3 Qb2
2N1b3/N4RB1/2pnKnQ1/1Qr2n2/5b2/kN2N1Nq/R1n2pq1/BBB2rn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 f5 d4 h5 g4 a5 b6 h3 g5 h2 d6 f3 d7 a4 b7 h4 d5 h3 g6 f4 g7 f2 d6 f3 Nd2 a3 Rb1 a2 Nb3 a1Q Qd3 Rh6 Ne2 Rh4 Ke6 Ra2 e5 Rf4 Qg6 Rf5 Ng3 Nc6 b8Q+ Bb7 Bd3 Nce7 Rf1 Nf6 g8N h1N Nh6 h2 Ng4 Bh6 Ne3 Qh8 d8B Nc8 d7 Nd6 Be7 Ra5 d8B Rc5 Bf8 Ka4 Bg7 Bc6 Be7 Be8 Qb6 Nh5 Bef6 Qa2 Qh7 c6 Ne2 N1g3 Ke7 h1N Qg6 Bd7 Nd2 Qc8 b4 Qc4 e6 Qg4 Ba1 Rfd5 Rb2 Ka3 Bb1 Rd3 Nb3 Rd1 b5 Qe4 Ned4 Ne2 Ng4 Qh8 Nf5 Ng1 Qb8 N1g3 b6 N3e2 Qb7 Nd4 Ng3 Nc2 Qb8 Be8 Qb7 Bf7 Kd7 Qd5 e7 Bd2 e8N Qe4 Nc7 Be8+ Kd8 Qd5 Ke7 Qh7 Re1 f1N Nb5+ Kb4 Na7 Nfe3 Rf1 Qd3 Ke6 Qe2 Qa6 Qh2 Qb5+ Ka3 Rf2 Qg2 b7 Ndc4 b8N Nd6 Nd7 Rf1 Nb6 Qh6 Re2 Qh8 Nbc8 f2 Ke7 Nf6 Re1 Nf7 Rd1 Nf5+ Ke6 Be3 Rd7 Bf4 Ne3 N7d6 Rf7 Qhh3 Ra2#
k2NbK1N/nBR1R1n1/rpRBr3/R1Q1r3/Bp6/rq4b1/1R2B3/1qrQ4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Qc2 Kd7 Ke2 e5 Kf3 c5 Ke4 Kc7 d4 h5 a4 c4 f4 h3 g4 h4 a5 c3 f6 h2 f5 h3 d6+ Kc6 f7 b6 a6 Be6 d7 Qc8 d8R Ne7 d5+ Kc7 f6 Bh6 f8Q Rg8 d6+ Kc6 a7 Kb7 g5 Bd7 g6 Na6 f7 Be6 g7 Nd5 d7 Qb8 Na3 Bf4 Nf3 Bh6 Nd4 Bf4 Nc6 Qc8 Nc4 Ne7 Nd6+ Kc7 Re8 Rh8 d8R Rh6 g8B Nf5 Qb3 Bg3 Bf4 Bd7 Kd5 e4 Qc2 Rb8 a8B e3 Bb7 e2 Qe7 e1R f8R Re3 Rf6 Re2 Qe5 Ng7 Ra5 Re3 Rg1 h1R Rg2 h2 Rd2 Re4 Be2 Ra1 Qb3 Ra3 Rb2 h1Q Qd4 Qc1 Qbd1 c2 Re5 Rc3 Nf7 Be8 Nh8 Qb1 Rdd6 c1R Rf7+ Qd7 Nd8 Ra8 Qc5+ Kb8 Bc8 Qa4 Rc7 Ra3 Bh7 Ree3 Bc2 Ra7 Rde6 Ka8 Kd6 Nb8 Ke7 Ra6 Kf8 Nc6 Ree7 Na7 R5e6 Rg6 Rec6 Rge6 Bd6 R3e5 Bb3 Qb5 Bc2 Qd3 Ba4 Qb3 Bb7+
QR1R1RB1/1n2p3/1b4b1/qRnKbbp1/1N6/4B2r/NRb1r3/k1Q1N1qN b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 b4 a5 h4 g5 b6 a4 f6 d6 f7 g3 b5 a3 f5 d3 b7 g2 h5 a2 h6 d2 h7 Ke3 f6 Bh3 b6 Bd7 Kd5 Bh6 f8Q Bg7 c4 Ra4 f7 Nc6 b8N Be5 c5 Rg4 b7 Na5 c6 Bf5 c7 Re4 Nf3 g1B c8N Bg6 Bh3 Kd3 Na6 Re2 b8R Bb6 Be6 Nb7 Nc3 Qc7 Qe1 Kc2 Rb1 a1Q Rb5 d1B Rh2 Qd8 Na2 Nf6+ Kc4 Qb1 Be3 Ne4 N6b4+ Kb2 Kd5 Nec5 Qd2+ Bdc2 Ne1 Ka1 Qg8 Bcf5 f8R Ba7 Rf2 Qa5 Rd8 Bb6 Qe8 Rf8 h8R Rf7 Rg8 Rh7 Rf8 Rh3 Bg8 Qc1 Kc6 d5 Nd6 d4 Ne4 d3 Kd5 Qd1 Ng3 Qc1 Nh1 Qd1 Qc2 d2 Qc6 Qc1 Rh2 d1B Qd2 Bdc2 Rf2 Nd6 Qa8 Ndb7 Rf4 Ba4 Rc4 Bd1 Rc2 Qb1 Rb2 Bdc2 Ned3 Qf1 Ne1 Qg1 Qc1+
6K1/2B1q2N/1R6/kbb2n1B/r2rB1QN/rr3NN1/p1pqB3/Q1n1q1NR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Rh3 Kd7 Ra6 f5 Kf2 h5 Kf3 c5 g4 Kc7 d4 c4 e4 c3 b4 c2 e5 Bg7 b6+ Kb7 g5 Rh7 d6 Qe7 b5 Bf8 d7 Qd6 d8Q Nc6 g6 Qe7 d5 Qe6 d6 Na5 g7 Qg6 e6 Bd7 e7 Qh6 e8B Ne7 g8B Nb3 Nc3 Rh8 Rh2 h3 Bh7 h4 Ne4 Rg8 Bb2 Rg4 Qa1 Nc1 Bh5 Bc6 d7 Qf6 Ra3 a5 Be5 a4 Rb3 a3 Bc7 a2 Qe8 Ra7 Qg6 Ra4 Be2 Qd4 Qg5 Qd2 Qgg7 Ng6 Rb4 Bc5 Rb2 Ne7 d8N+ Ka8 b7+ Ka7 b8N Bd7 Rg2 h2 Nf7 h3 Nh8 Rh4 Rg4 h1R Ng6 Rh2 Rb1 Rg2 Rg3 h2 Rh3 h1R b6+ Kb7 Nc6 Rhh2 Rb5 Ka6 b7 Be8 Rg3 R2h3 Nd4 Rg4 Rb6+ Ka5 b8N Bb5 Nd7 Ra3+ Nc3 Rhh4 Rh3 R2g3+ Kf2 f3 Rh1 f4 Nf6 Rgh3 Nce4 Rhg3 Bg8 Nf5 Bd5 Ba4 Bb7 Rgh3 Nh7 Be8 Kf1 f2 Bc6 Rhe3 Ng3 Reb3 Kg2 Bd7 Bd3 Be8 Kf3 f1Q+ Ke4 f3+ Ke5 f2 Kf6 Qfe2 Ndf3 f1Q Bb7 Bc6 Kf7 Rga4 Kg8 Qe7 Be2 Rhd4 Ngh4 Qfe1 Qg4 Bb5 Be4
R1n1RKN1/1qrB4/3Bqn2/3N2Bk/1Q3pB1/2br2rN/1b3Np1/b1B1Q2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 g5 d4 a5 e4 c5 b4 f5 h4 Kf7 e5 Kg6 d6 f3 Kg3 a4 b6 a3 d7 c4 b5 a2 d5 f2 e6 c3 d6 c2 e7 Bb7 e8B+ Kh6 h5 Rh7 Qe1 Bf3 b7 Nc6 b8B Bg7 b6 Nge7 b7 Rh8 Nc3 Rh7 Nh3 Nd4 Ne4 Ndc6 Bd3 f1Q Nef2 Qc8 d8N Ng8 d7 Be4 Bd6 Bg2 b8Q Qe2 Qbb4 Ra3 Ne6 Qb7 d8B Na7 Bd7 Nc8 Nc7 Bc3 Nd5 Nf6 Rf1 Bh1 Rg1 Kg7 h6+ Kg6 Rf1 Rf7 h7 Qe6 h8N+ Kh5 Ng6 Rh7 Nge7 f4+ Kh2 Rf7 Ng8 Rg7 Bf5 g3+ Kg1 g2 Kh2 g1R B8e7 g4 Bd8 Ne8 Bg5 Rg3 Rg1 Rf3 Rg3 Rd3 Re3 Nf6 Re2 Qf7 Re8 Qe6 Nde7 Bc6 Nd5 g3+ Kg2 Rd1 Kf3 Rb3 Rb1 a1B Rb2 Rd2 Ra2 Rd4 Ra8 Ra3 Bd2 c1B Be3 Bc1b2 Bc1 Nh7 Be5 Rd3+ Ke4 Qh6 Bd6 Re7+ Bfe6 Nf6+ Kf5 Rb3 Nb6 Bh1 Nd5 Rd4 Ke5 g2 Kf5 Qg6+ Ke5 Rf7 Bf5 Rd3+ Ke6 Ra3 Ba4 Rc7 Bd7 Qh6 Kf7 Qg6+ Kf8 Rg3 Bfe6 Qe4 Bf5 Qe6 Ne3 Bd4 Nd5 Rad3 Qec3 Be5 Qe1 Bec3 Bg4+
K1n5/3bN1Bb/Nq1R3R/1NnR4/k1pR3p/Q1q1r1rQ/b3Bb2/1R4nN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 b4 h5 d4 h3 g4 f6 g5 h2 d6 a4 Kd5 a3 e4 f5 g6 a2 b6 c4 e5 f3 b5 f2 g7 f4 e6+ Ke8 b7 f3 e7 Kd7 e8R Qf6 b6 Qf7+ Re6 Ra3 Nh3 Qe8 Qb3 Na6 b8Q Qg6 b7 Nc5 Be2 f1N Bh6 f2 Qa7 Ng3 Nc3 f1B Rb1 a1Q Nb5 Qc3 Nf2 Bh3 Rhd1 h4 Nh1 Bf5 Qa5 Qf6 Qa6 Bh7 b8N+ Kd8 Kc6 Bd7+ Kb6 Ne7 Ka7 Nc8+ Ka8 Rg8 d5 Qf2 Rd4 Qfe3 Nf2 h1B Rg6 Be4 Nh1 Ke8 Qa5 Be7 Na6 Bd8 Qab4 Bb6 Qa5 Kd8 Qab4 Re8 g8N Qg1 Bf8 Bd3 Rh6 Re3 Ne7 Ba7 Rc1 Bb1 Bg7 Ba2 Rb1 Qf2 Qc2 Rb3 Qa3 Qf6 Qf5 Qg6 Bf3 Ne2 Qh3 Ng1 Be2 Bf5 d7 Qb6 Nd6 Bg4 Nb8 Kc7 d8R Qb5 Na6+ Kb6 Rd7 Qbb4 Nb5+ Be6 Qc1 Ka5 d6 Ka4 Rd8 Qa5 d7 Qb6 Rh8 Bf7 d8R Be8 R8d6 Bd7 Rd8 Bb8 Rg8 Qb4 Bf8 Re4 Rc6 Bg3 Rcd6 Bf2 Rg5 Rg3 Bg7 Ree3 Rgd5 Qc3 Qa3+
4b2K/Q1Q3Qb/3QR1qk/qN2nn2/1pNNR1rr/2p1N2N/1Bn4b/2n2B2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kg7 Ke4 h5 Ke5 b5 d4 c5 g4 b3 a4 e6 f4 h3 d6 h2 a5 h4 d5 b2 d7 h3 a6 b4 d6 c4 g5 c3 f6+ Kg6 a7 Bh6 f5+ Kh7 f7 Ne7 Kf6 e5 f8N+ Kg8 g6 e4 g7 e3 Ne6 Kh7 g8N e2 Nd4 e1N Nd2 b1B Nb5 Nd3 Bb2 Ba6 Nc4 Nec6+ Ne7 Qa5 d8N Nce5 d7 Nc1 Ne6 Bf4 d8Q Nbc6 Qc7 Rag8 a8Q Nd4 Nd5+ Kh6 Qaa7 Nc2 Ned4 Rg4 Nde3 Bb7 Qd2 Bc6 Qg2 Bd7 Qd5 Be8 Qdd6 Qb6 Ra6 Qa5 Ngf3 Rh7 Ng5 Rh8 Rg1 h1N Rb6 h2 Nh3 Bg3 Rg2 Bf4 Re2 Ng3 Ra6 h1Q Rc6 Rh4 Rb6 Qg1 Re1 Kh5 Kg7 Rg8+ Kh7 Qg2 f6 Rgg4 f7 Nf5 f8Q Bh2 Kh8 Qe4 Qfg7 Qc6 Qdd8 Qf6 Re6 Qg6 Qgf7 Kh6 Qdd6 Rg1 Qfd7 Rgg4 Qg7+ Kh5 Qcc5 Qg5 Rd1 Na1 Kh7 Nh6+ Kh8 Bh7 Nec2 Nf5 Re1 Qh6 Re4 Qg6 N2e3 Nc2 Qf6 Kh6 Qcc7 Na3 Qff7 Nc2 Qg7+
1R2n1N1/B1q1B1b1/RRB1q3/2rqQp2/RRr1qn1N/1b1B3k/2b4p/K6Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 b4 a5 Kb2 c5 e4 f3 g4 a4 d6 Ke6 e5 h3 b6 f2 d5+ Kd7 b7 c4 b5 h4 g5 h2 g6 h3 g7 Na6 b8R Nc7 b6 Rh4 b7 Ne6 Nf3 Nf6 g8Q Bg7 Bd3 f1B Nc3 Nf4 Be3 Ra5 Ne4 Ne8 Ba7 Rc5 Qh8 a3+ Ka2 Rg4 Nh4 c3 Qe1 Qf6 e6+ Kd8 d7 Ke7 d8R c2 Qd1 c1Q Rd6 Qe5 Nf6 Qe4 Rg1 h1Q Ra6 h2 Ra4 Kd6 e7 Ke5 Ng8 Be6 Rg2 Qce3 Rb2 Be2 Qf1 Bd1 Rbb4 Bc2 Qg2 Qd1 Qh1 Qee1 Rb6 Qa5 Rbb4 Qc7 Rb6 Ne2 Raa6 Kf4 Ra4 Kg3 Raa6 Nd6 e8B Kh3 Bc6 Ne8 Ra4 Nf4 Rbb4 Rc4 d6 Qdf3 d7 Rc5+ Rb3 Qd5 d8B Qfe4 Be7 Bf7 Rb1 Qee6 Ra8 Qde4 Rb2 Q4d5 Ka1 a2 b8R Qee4 Nf6 Be6 Rb1 Bf7 R3b4 Be6 Kb2 a1Q+ Kc1 Qed4 Bdb5 Qdd7 Rb2 Qa2 Bd3 Nd5 R2b6 Bf8 Ng8 Qdd8 Qf6 Bg7 Qe5 Re4 R1b5 Nf4 Rb2 Qac4 R2b4 Q4d6 Kb2 Bd5 R4b5 Qe6 Ka1 Qd4+ Rb2 Qe3 R2b4 Bdb3 R6b5 Qdd7 Bb6 Rec4 R8a6 Qdd5 Ba7 Qee4 R5b6
2q2rq1/2rn2Br/1R2Nbbr/1pB2k2/6NR/1R1n2Qp/B1QK2bR/B2B4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 b5 f4 h5 g4 e5 g5 c5 d6 h3 a5 h2 d5 c4 a6 e4 f6 h4 f7 b3 a7 h3 f5 c3 f6 c2 g6 b2 g7 e3 Na3 b1B Nf3 e2 Nc4 Qc7 Nd4 Na6 Ne5+ Kd8 d7 Nb8 Ra3 Rh6 Bb2 c1R Ng4 Qc2 Ba1 Ba6 Rb3 Ne7 g8B Qh7 Kd2 e1R Qc2 Ng6 Be2 Nf4 Bd1 Ba3 f8B Bb2 f7 Re7 Bg7 Nd3 f8B Bb7 Be6 Rf7 Bc5 Kc7 d8R Nd7 Rf8 Qg8 Rb8 Bc6 Rb6 Raf8 a8Q Re7 Ne2 Bf6 Qa3 Kc8 d6 Bg2 Nd4 Kd8 Rf1 h1Q Rf2 Qf1 Re2 Qf5 Bc4 Ke8 Ne6 Kf7 Rf2 Kg6 Bd5 Nb8 d7 Ref7 d8R Nd7 Ra8 Re7 Ra4 Ref7 Nd8 Qe6 Re2 Kf5 Rc4 Qe8 Ne6 Qc8 Rcb4 Bf1 Rh2 Bg2 Qa7 Re7 Qc7 Ref7 Qg3 Re7 Qb2 Rc4 Qc2 Rc3 Bh8 Reh7 Bg7 Rc4 Ra3 Rc3 Ba2 Rc4 Rab3 Rc3 Be7 Rc7 Bc5 Kg6 Qc1 Nf4 Ra4 Bbe4 Qc2 Nd3 Nf2+ Bg5+ Qe3 Bf6 Qf3 Bf5 Rh4 Be4 Ng4 Bf5 Nd4 Kg5 Qg3 Bg6 Ne6+ Kf5 Bd6 Rh5 Bb4 R5h6 Bc5
bBN1N2R/n4BRN/k4r2/pQb5/qB5p/nB1qb2b/KB2N3/1Q1r3r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 g4 c5 e4 Kc7 e5 Kb6 g5 f3 e6 h3 d6 h2 d5 f4 d7 f2 d6 c4+ Ka2 c3 b4 c2 g6 f3 e7 Ra6 e8N Qc7 d8B Ka7 d7 Kb6 g7 Ra8 Na3 Ra7 Ne2 Ra6 Nc4+ Ka7 b6+ Kb7 b5 Nf6 g8B Ne4 Be7 Qc6 d8Q Nd2 Bb4 Bh3 Bb2 c1B Bf7 Bc5 Rg1 h1R Rg7 Nb1 Q8d5 B1e3 Qd7+ Qc7 Qc1 Na3 Qb1 Nc6 Bg2 f1Q Ncd6+ Kb8 b7 Ka7 b8N f2 Bgd5 h4 Bb3 Qd1 Rh7 f1B Nc8+ Kb7 b6 Na7 Rh6 Bfg2 Rh5 Rf8 Rh8 Bf3 Qd4 Qd2 Nd7 Qc6 Ndf6 Qa4 Nh7 Qd3 Qd6 Rg8 Qe6 Rgg1 Qd7+ Kb8 b7 Rd1 Qc2 Re6 Rc1 Rf6 Qb1 Rd2 Rg1 Rd1 Rg7 Be4 Qg4 Bd5 Ned6 Kc7 b8B+ Kc6 Ne8 Kb5 Qf5 Ba8 Qd7+ Ka6 Qb5+
k2R2Qq/4B2R/2rrq1rq/p4npB/r1Q1N2N/B5Bn/4bB1R/bR2K3 b - - 0 1 illegal: No possible last move, all moves rejected
2BR1br1/1Nq2B1N/Q2Rrb1p/n6B/b5Bk/2p2qQn/3B2b1/K2N1q1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 Ke7 e4 c5 d4 a5 Kd2 f5 Kc2 c3 b4 h6 g6 Kf6 g7 Kg5 e5 a4 d5 c4 e6 a3 b6 a2 b7 Bd7 d6 Nf6 g8B Nh7 e7 Ra7 e8B Be6 b5 Bg7 b6 Bd5 d7 Be6 Qd3 Nf6 Bd2 Nd5 Be2 Ra8 Nh3+ Kh4 g5 f3 g6 f2 Bgf7 f1B Bg4 f4 Nf2+ Bh3 Rd1 f3 Nh1 Qg5 d8N Bf8 g7 f2 g8B Nc6 b8N f1Q b7 Qgf6 Nd7 Bg2 b8Q Nf4 Nb7 Ra6 Bh7 Rb6 Bhf5 Nh3 Kc1 c2 Nc3 Ra6 Kb2 Rg8 Rac1 Rb6+ Ka1 Na5 Rb1 Ra6 Rb6 Bed5 B5e6 Q6f3 Rd6 Bc6 Nf6 Ba4 Bc8 Rc6 Nh7 c1Q+ Qb1 Qc2 Qb5 Rb6 Qa6 Rc6 Rd8 Re6 Rb1 Qcc1 Nd1 Qcc3+ Rb2 Qg7 Bfh5 Qd7 Rb6 Qc7 Kb2 a1B+ Ka2 Nf2 Bef7 Bf6 Rbd6 c3 Ka1 Nh3 Qba7 Qfc4 Qg1 Qce2 Qh2 Qef1 Qg3+
1Q2Q3/3b3Q/n2r1p1B/brR4K/Nn1Qrk1Q/rn1B1pR1/1Rq3q1/1N1R4 b - - 0 1 illegal: No possible last move
r4bn1/1b1r1b2/2p3qk/1NNQp1Nq/BK1QnN1R/1R1QN1q1/b6Q/4B3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg6 d4 a5 Kd2 h5 Kc3 e6 b4 h3 f5+ Kg7 g5 c6 d6 a4 g6 h4 d7 a3 b6 h2 b5 e3 b7 e2 b6 e1Q+ Bd2 a2 d5 h3 d6 Rh6 f6+ Kh8 f7 Kg7 Ne2 Qg5 d8Q Qf4 d7 Na6 b8Q Ra7 b7 Qc7 Na3 Rh7 Rb1 Be7 f8N Rh4 Nf4 Kh6 g7 Qe2 Be1 Qh5 Qd5 Nc5 Nh7 a1Q+ Kb4 Qf6 Nb5 Qfg6 Ng5 Ra8 Rb3 Bf8 Qa7 Qd6 b8Q Bb7 Be2 Rg4 Bd1 Ne4+ Qac5 Qe5 Qbd6 Rg2 Qcd4 Rd2 Qb8 Rd3 d8N Rd2 Rg3 Rd3 Ba4 Rd1 Rb3 Rd2 Nd3 Qg3 Nf4 e5 Nde6 Rd1 Nc5 Rd2 Qc8 Rd1 Qg4 Rd2 Qh4 Rd1 Rf1 h1B Qd7 Bg2 Rh1 h2 Qd3 Bh3 Q5d4 Be6 Q7d5 Bf7 Qh3 Ne7 g8N+ Kg7 Rf1 h1B Nf6 Kh6 Qh2 Ng8 Rg1 Bf3 Rf1 Bg4 Rh1 Bge6 Ng4+ Kg7 Ne3 Kh6 Qd8 Bc4 Q8d5 Rd2 Rc3 Ba2 Rb3 Rf2 Nfh3 Rf6 Nf4 Rd6 Qhe2 Rdd8 Rh4 Rd7 Qh2
kB2R1B1/Q3N3/Kp1p3R/nQ1rq1R1/rRbbBn2/B3qr1N/3r4/B5b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 Kd3 g5 Kc4 g4 Kb5 b6 h4 d3 f4 b3 a4 g3 c4 d2 c5 g2 f6 b2 a5 e4 c6 e3 h6 e2 a6 e1R a7 Na6 f5 Re3 f7+ Ke7 h5 Kd6 f6 Kc7 h7 Qe8 h6 Rh3 Bc4 Qe7 Qa4 d1R Bf4+ Qd6 Nc3 Rh5+ Nd5+ Kd8 Rb1 Rg5 Nh3 Nc5 Rg1 Qe5 Ne7 Bg7 f8R+ Kc7 f7 Rd2 Re8 Nb7+ Ka6 Nf6 f8B Nd5 Qb5 Bf6 Bg3 Nf4 Bg8 Qe3 Bh2 Rgd5 Bg3 Bd4 Bh2 Rb8 a8Q Qe5 Qa7 Ra8 Rgc1 g1B Rc5 Rd6 Rd5 Qe3 Rg5 Rd5 Ng6 Qe5 Ba3 Qe3 Ne7 Qe5 Re1 b1Q Re4 Qb3 Bg3 Qe3 Bh2 Bb2 Rb4 Bd4 Be6 Rg8 h8R Rg6 h7 Rf6 Bf5 Nd3 Be4 Rf3 Rhf8 Nf4 h8B Rb2 Rf6 Rd2 Rh6 Rb8 Qa8 Na5+ Ka7 Ba6 Bf6 Kd6 c7 Rd8 c8B Kc7 Bb7 Ra2 Bh7 Rd2 Bg8 Rb8 Qa4 Bc4 Qb5 Rd8 Ka6 Ra2 Bc1 Ra4 Bg3 Rc5 Be4 Rd5 Qc6+ Kb8 Qc7+ Ka8 Ba3 Ba2 Qc2 Bc4 Qa2 Qc7 Be5 Qc5 Bb8 Qd6 Be1 Qe5 Bc3 d6 Rh8 Rc8 Bcb2 Be2 Rh6 Rc2 Ba1 Bc4 B3b2 Rd2 Qb3 Ra3 Qa4 Nb3 Qa5 Ra4 Ba3 Be2 Qc4 Rd3 Qc7 Rd2+ Rc4 Rb4 Qac5 Na5 Qb5 Ra4 Rb4 Bc4 Qa7#
n5Nr/3r1R2/4q2R/3bp3/2bkNb2/RbN1rBpN/1nRr1QQ1/K1B1R3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 a5 b4 g5 Kb2 d5 f6 d3 f4+ Kd4 f5 e5 b6 g3 h5 d2 b5 g2 h6 a4 b7 g4 c5 g3 c6 Nd7 b8N Qb6 f7 Ne7 f6 Ba6 h7 Nc5 c7 Bh6 f8Q Ra7 c8R Rd7 f7 Qe6 b6 Bc4 b7 Bf4 Qf3 d1B Nh3 g1R Qg2 Bf3 Ra3 Nd3+ Ka1 Nb2 Be2 Rd1 Nc3 Rd2 Na6 Be4 Rc5 Nc8 b8N Nb6 Re1 Na8 Rc8 Bf3 Nc5 Be4 Qg8 Bf3 f8R Be4 Qf7 Bf3 Rb3 a3 N5e4 a2 Bd1 Kd3 Nc6 d4 Be2+ Ke3 Ne7 d3 Ng8 Kd4 Nef6 Bfd5 Bf3 Rf2 Rc6 d2 Ra3 d1B Nfe4 Bdb3 Qf5 Re2 Rf7 Re3 Bh5 Bg5 Qff2 Bf4 Bf3 Na4 Nh6 Rb8 h8R Ba6 Nd1 Rbd8 Rhh7 Rh8 Ng8 Bb5 Rc3 Bb5c4 Rh6 Nc5 Kb2 a1R Rc2 Ra2+ Kb1 Nd3 Rce2 Rc2 Ka1 Nb2 Ndc3 Rd2 Ne7 Rd1 Rc2 Rd2 Ng8
b1QBRnrQ/5pbN/2bn4/3RnB1r/2q2Bb1/k1N1N2B/1p3n1N/4K2N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 e4 Kd6 d4 c5 a4 b5 e5+ Kd7 a5 g5 e6+ Kd6 e7 c4 e8B g4 a6 f3 a7 g3 h6 g2 h5 b3 h7 b4 h6 b2 Ra5 c3 Bf4+ Ke7 d6+ Ke6 d7 c2 Nc3 c1N Nge2 g1N Qc2 b1B Ng3 b3 Rd5 Qh4 d8B Ne7 Bh3+ Nf5 Bb5 b2 Bd3 Rg8 h8Q Bg7 h7 Nd7 Rh2 Rb8 a8N Rb5 Nb6 Nf8 Nc4 Rc5 Ne3 f2+ Kd1 f1B Nh1 Ra5 Re2 Bg2 Kd2 Qg4 Ke1 Nd6 Be4 Kd7 Bf5+ Kc6 Rb5 Nb7 Be6 Qh5 Qf5 Ra7 Bdg5 Bge4 Nc2 Be5 d5+ Kd6 Qg7 Ra6 h8N Ra5 Ng6 Qf3 Qh6 Qd3 Nh4 Qc4 Nf3 Bd7 Nh2 Nf3+ Kf1 Be8 Qh8 Nd3 Bf6 Nf2 Rc5 Nd4 Ke1 Nc6 Rb5 Bg2 Re4 Bd7 Ne3 Bc2 Bh4 Bd1 Rc5 Bg4 Be7+ Kc7 d6+ Kb6 Bh4 Be8 d7 Nd6 d8N Bg7 Bd7 Rb5 Ne6 Ka5 Bd8+ Kb4 Ng5 Ka3 Nh7 Ra5 Rce5 Rd5 Qe6 Rb5 Rd4 Ra5 Ree4 Rh5 Qf5 B2f3 Bc8 Bd7 Re8 Ne5 Rd3 Bb7 Rd5 Bdc6 Qd7 Ba8 Qb7 Rh4 Bf5 Rh5 Qc8
4Q1nb/r1RN1K2/4p1B1/2pqRRN1/b3BR2/5Bq1/pk2nQq1/2BrRn2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 b4 h5 g6 a5 Kg5 c5 f4 c3 g7 e3 Kg6 e6 f5 c2 g5 e2 f6 e1Q b6 h4 f7 a4 b5 h3 b7 h2 b6 a3 Nc3 a2 Ne4 Qe8 Bg2 Qe7 Nh3 Qc7 Qf3 Ra7 Rf1 h1Q Nf6 Qe3 Nd7 Na6 b8Q Qa3 b7 Qd6 Qf2+ Qe3 Bf3 Be7 f8R Qdh2 Rf5 Nf6 g8B Qe5 Bf7 Kc4 d4 Kc3 d5 Qe1 d6 Qhh2 Qa8 Rd8 b8R Q1e2 Rb7 Qd5 Rc7 Ng8 Be8 Bf8 Kf7 Bg7 g6 Nb4 Ng5 Bh8 g7 Qg3 Re1 Qf1 Ree5 Qfg2 Rf4 Ba6 Qb8 Bb5 Rff5 Nf6 g8B Ba4 Bh7 Ng8 Rf4 Kb3 Bhe4 Kc3 Bd2+ Kb2 Re1 c1N Rff5 Ne2 Bc1+ Ka1 Nf8 Qh1 d7 Qd6 Bb7 Qd4 Kg6 Nc2 Bbd5 Rc8 d8R Ne3 Bb7 Qe4 Rd4 Qhg2 Qa8 Qc6 Rdf4 Nf1 Bf7 Qd7 Bbe4 Rd8 Qc6 Qd3 Qe8 Rd4 Nd7 Qc4 Kh7 Qd5 B7h5 Rd1 Kg6 Nf6 Kf7 Ng8 Bd2 Kb2 Bg6 Qh1 Be3 Qhg2 Bc1+
3r1k1q/R1QrRp1n/1QN3b1/N3n1p1/Q5Bq/1Kp1Q3/1B3bNq/4QN1b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 g5 e4 a4 h4 c4 b4 a3 e5 a2 d6 g3 d7+ Ke7 h5 g2 e6 f3 b6 f2 d5 Ba6 d6+ Kf6 b7 Kg7 h6+ Kg6 e7 Qa5 d8N Qf5 e8Q Qc8 d7 Ra7 h7 Kg7 b5 Qc6 b6 Bb5 Nh3 g1Q Qa4 Bd6 Nf4 Na6 b8Q Nb4 b7 Nf6 Ng2 Ba6 Qe3 Qe4 Nc6 Bc5 d8N Kf8 Bb2 Qh2 Na5 Nc6 Qc7 Qeh4 b8Q Ne5 Nd2 Bb7 Be2 f1B Bg4 Bd3 Rhe1 Bg6 Nf1 Bc6 Qcb6 Rd7 Q8c7 Rg8 h8Q Nh7 Qf6 Ba8 Qff4 Rh8 Qd2 Bf2 Qfe3 Bae4 Ndc6 Rg8 Nf4 Bh1 Ng2 Rh8 Kb4 c3 Kb3 Rg8 Rac1 a1Q Re2 Qb1 Qe1 Qf5 Ra1 Qf6 Rd2 Qd8 Rd4 Qf6 Re4 Qh8 Ra2 Kg7 Ra1 Rgd8 Ra3 Kf8 Ra1 Nf3 Re7 Ne5 Nb7 Nf3 Qaf4 Qe5 Ra7 Qh8 Qa4 Ne5 Nba5
k7/n2Npr2/1pqq2p1/1NR2Rb1/KB4b1/RQ1b2r1/R2Rq1B1/BnB3Q1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 a4 c5 h4 Kc7 d4 c4 Kd2 g6 Kc2 c3 Kb3 c2 f6 g3 f5 g2 f7 Bg7 f8Q Bh6 a5 Qe8 a6 Be3 a7 Nc6 h5 Nh6 d6+ Kb6 d7 Qd8 d5 Bg5 d6 Bf6 Nc3 Nb8 Ka4 b3 Ra3 b2 Nb5 b1B Qg8 Qc7 d8B Nc6 d7 Bg5 f6 Nf5 h6 Ne3 h7 Nd5 Nf3 g1Q f7 Qg2 f8R Qe2 Bg2 Rb8 a8R Na7 Rf5 Nc3+ Kb4 Kc6 Qb3 Rf8 h8B Rf7 Qg1 b6 Rh5 Kb7 Ne5+ Qc6 Bc7 Qd5 Bd2 c1Q d8R Bd3 Bd6 Nb1 Ka4 Qcc6 B6b4 Qdd6 Bc1 Bd7 Bf6 Rc8 Ra2 Be6 Nd7 Rc7 Rc5 Bg4 Ba1 Rc8 Rf8 Rc7 Rad8 Rc8 Rh3 Ka8 Re3 Rf3 Rff5 Rg3 Rh8 Rf8 Rh2 Bc4 Rd3 Rf7 Rdd2 Bd3 Ra3 Qf1 Bf3 Qd1 Rhe2 Qf1 Bg2 Qe1 Rda2 Qf1 Rec2 Qe2 Rd2
b2rB1q1/1pr4k/1n2BN2/2Np2qq/pB1B4/1RN5/1nQ1BN2/1Qb1K1Rr b - - 0 1 illegal: Other
1B4q1/pn3N2/bkn1r1QK/1Q1p1Q1R/1Nrb4/1rB4B/B5Qp/qqQ3R1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kf3 e5 c4 d6 b4 Kd7 g4 Kc7 b6+ Kc6 b7 d3 g5 h3 f6 d2 b5+ Kc5 f7 h4 g6 e4+ Kf4 e3 g7 h2 b6 e2 Nh3 e1Q Ng5 h3 Nc3 Bd7 Bb2 Rh6 Nd5 Rh8 Nb4 Nc6 b8Q Nce7 b7 Kb6 Bc3 Ba4 c5+ Ka5 c6 Nh6 g8B Qe6 c7 Nhf5 c8Q Bg7 f8Q Nc6 Qf6 Rh6 Qg6 Qdf6 Nf7 Kb6 f3 Bb5 Qa4 Qd4+ Kg5 d1R f4 Ba6 Bg2 Rd2 Rag1 Rb2 Bf1 Rb3 Bg2 Ne3 f5 Nc4 f6 N4a5 Bf1 Qe8 Qcf5 Qd3 Qbc8 Qb1 b8B Nb7 Qf3 Rh4 Qg2 Rc4 Qcf5 Bh8 Kh6 Qa1 Qb1 Qd8 Qc1 Qc8 Bd3 d5 Bb1 Qe6 Ba2 Qb1 Ne5 Qc8 Be6 Qg8 f7 Bf6 f8Q Bh8 Nf7 Bd4 Bf4 Re8 Bb8 Qa1 Bg4 Re6 Qc8 Rf6 Qf5 Re6 Re1 Qb1 Rhg1 h1Q Re5 h2 Bh3 Qc2 Qd3 Qb2 Rh5 Qb1 Qf5 Qa1 Qgd2 Qe4 Qg2 Qeb1 Qb5+
5Kb1/bb1RB2q/R1npkp2/2R5/nb2rN1p/BQ1B3R/7R/BQr1b1N1 b - - 0 1 illegal: No proof kernel
B6n/r1n3pb/p1N1r1Q1/q1Rp3k/1B1rB1R1/4R1r1/2B2R2/rNQ1bB1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 f5 Kg2 Kf7 e4 Kg6 b4 d5 h4 a6 c4 f4 c5 g3 h5+ Kg5 h6 d3 e6 d2 e5 Qc7 b6 Ne7 b7 Qd7 c6 Rh7 c7 Nbc6 b8R Na7 b5 Ng8 b6 Qb5 e7 Nf6 e8B Nd7 e6 Qc4 e7 Nc5 b7 Qc2 Ra3 Nb5 Bc6 Na4 e8B Qc3 Rh4 f3+ Kh1 f2 Ne2 Bc5 Bg6 Qa5 Nd4 Bb4 Re3 Nb2 Be4 Nc4 Rg4+ Kh5 Ba3 Ncd6 Qc1 Bf5 Rf8 d1R b8R Nf7 c8B Nc7 Rb5 Nh8 Rc5 Ra7 Ba8 Be1 Nc6 Rd4 Bb4 Bg6 Bcf5 g2+ Kh2 g1R Rf6 Rg2+ Kh1 Rg3 Bc2 Nf7 Bfe4 Rh8 h7 Re8 h8Q+ Bh7 Rff3 Re6 Qd8 Nh8 Qf6 Rd2 Ba4 Ra2 Bd1 Ra1 Bb5 Bd2 Bdc2 f1R+ Kh2 Rd1 Rf2 Be1 Bf1 Rd2 Kh1 Rd4 Qg6+
B2b2B1/1Qqb3Q/3nRN1n/r3BRRR/6r1/pN1Br3/KR1p2pk/4b2b b - - 0 1 illegal: No possible last move
R4Rbn/4B1kN/nQ1QnbR1/3K2bp/2r2q1p/pQ1BQ1R1/1n6/2rQ3N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 a5 Ke4 f3 b4 f6 d4 Kf7 g4 f2 b6 c4 d6 c3 d7 c2 b7 h6 b5 a4 d5 Rh7 g5 Rh8 b6 Be7 d6 Na6 b8Q Ra7 b7 Kg6 Ba3 c1B Nd2 Kf7 g6+ Kg7 Ndf3 Qc7 d8Q Be6 d7 Bg5 Nh3 Qh2 Kd4 Qf4+ e4 Bf7 Bc4 f1N Bd3 Nd2 Qd6 Nc4 b8Q Nb2 Nf2 Rc7 Qbb3 Rc1 Q8b6 Bd8 Rh3 Ne7 Nh1 Bg8 Rg3 h5 Rb1 Bc7 d8R f5 Rf8 Bd8 Bb4 a3 Bc5 Qd2 e5 f4 e6 Qh2 Ke4 Bf6 Ng5 f3 Nh7 f2 Bb4 f1N Bc5 Ne3 Bb4 N7d5 e7 Ng4 e8Q Ndc7 Qee5 Ne6 Kd5 Qf2 Qee3 Qf4 Bc5 Ne5 Bb4 Kh6 g7 Ng6 Bc5 Bg5 Bb4 Bdf6 Ra8 Bf7 g8R Rc4 Rgb8 Rhc8 Rc1 R8c6 Rf8 Kg7 Rc2 Bg8 Rf2 Be7 Rf6 Nh8 Rh6 Qg4 Rff8 Qf4 Qde5+ Bf6 Be7 Rc1 Qd6 R6c4 Rg6+
1Q1R3R/1NK1b1NQ/2bN2kp/3r4/2pN3B/3bNpr1/q1n2Q2/1nQ2Bbn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 f5 d4 Kf7 g4 c5 b4 c4 e4 a4 d6 a3 g5 h3 d7 h2 e5 a2 e6+ Kg7 b6 Nc6 b5 Bb4 b7 Bd6 b8Q Bc5 g6 Qg5 d8N Ra6 b6 Ra8 b7 Nf6 d5 Ng8 d6 Na7 d7 Nf6 e7 Ne4 Na3 Nc3 Nf7 Rd8 Ne2 Nab5 Nc2 Nb1 Ned4 N5a3 Ne3 Nc2 Nd6 Ra3 e8N+ Kh6 g7 Kg6 Qa7 h6 b8Q Ba6 Bb2 Bb5 Qc1 Rd3 Rg1 h1N Rg2 Rc3 Rd2 Qg1 Ba3 Qh2 Bb4 Ba4 Rd3 Rb3 Be1 Bb6 Bh4 Bc6+ Ne4 Bc5 Qab6 Be7 g8Q+ Kh5 Ng7+ Kg6 Qb4 Ra3 Qbe1 Qd2 Qf2 Qa5 Kg2 f3+ Kh2 f4 Nd6 Nc3 Rb1 a1B Kh3 Rb3 Kg4 Qa2 Rb2 Nb1 Rd2 Rf8 d8N Rf5 N8b7 Rd3 Rb3 Rd5 Ra3 Rc3 Ra8 Bb2 Qg3 f2 Rd3 f3 Kf4+ Rg5 Qg2 Rg3 Ke5 Ba3 Rd1 Rd3 Ke6 Bc5 Qg1 Be4 Kd7 Bc6+ Kc7 Rd2 Be2 f1B Qf2 Bh3 Bf1 Bf5 Qa7 Bd3 Rd8 Bf8 Qb8 Be7 Re1 Rd1 Re2 Na1 Rb2 Nc2 Rb6 Rd2 Ra6 Rd1 Ra8 Bb4 N4f5 Be1 Qfd2 Bde4 Qh8 Bf6 Rc8 Bd7 Qa7 Bb5 Rf8 Bd7 Rad8 Be7 Qb8 Bdc6 Qe2 Rd5 Nd4 Bf2 Qee1 Bg1 Qf2 Rf5 Rfe8 Bd3 Qf8 Kh7 Qf7 Rfg5 Qd5 Rf5 Rh8+ Kg6 Qg8 Rd5 Qh7#
R5b1/7r/n3p1b1/1Bb1pk1q/n2QN1Bn/1R1N3r/1RBBp3/n1Q1R1KR b - - 0 1 illegal: No proof kernel
3n4/k1R1RB2/nbpKp1N1/1Qr1R2r/1Q2pBQ1/1qb4R/Q1N1b3/2Q1b1n1 b - - 0 1 illegal: No possible last move, all moves rejected
2rb4/1KBRb1p1/RB2pk2/1r1RNBR1/Qn6/Q3qr1B/2bp3R/N1b2n2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 a5 Kc4 d5+ Kc5 a4 c4 a3 f4 g3 h4 g2 b4 a2 h5 d3 b6 d4 f6 d2 b7 d3 f5 Ra6 h6 Rb6 b5 Ra6 h7 Rb6 Nf3 Re6 b6 Re1 Rh5 Nc6 b8R Qc7 b7 Re6 Rg5 Qh2 Kb6 g1B+ c5 Qh1 Bh3 Re5 Qa4 d1R Be3 d2 Na3 Bd7 Rd8 Rc1 b8B Bc8 Rd5 Rc3 Nc2 Nb4 c6 Nh6 c7 Ng4 Ka7 Bb7 c8B Nh2 Bc7 Nf1 Beb6 Rb3 Rd7 Be4 Kb8 Rd5 Kb7 Rb5+ Rd5 Rg8 h8R Qg2 Rh4 Qf2 Rh6 Qe3 Ne5+ Ke8 Rh4 Bd3 Rhd4 Bf2 Rd7 Bh4 R4d5 Rh8 Nc4 Kf7 Ne5+ Kg8 f7+ Kh7 Rc1 a1B f6 Bb2 Na1 Bc2 Re1 Rd3 Re2 Bc1 Rh2 Ra3 Rd8 Kh6 Bcf5 e6 R8d7 Be7 f8Q Rb3 Qfa8 Rc8 f7 Bd8 f8R Rc3 Rg1 Bhe7 Qa3 Kh5 Q8a4 Kh4 Bfg4 Kg5 Bf5+ Ng3 Rh8 Kf6 Rh5 Nf1 Rgg5 Qc5 Rh4 Rf3 Rc4 Qe3 Rc6 Ra5 Ba7 Rc5 Ra6 Rb5+ Bab6
2Q1N3/k2BBb2/B1N1rqq1/nq3r2/B2RQQ2/npq1B3/p2Q1RpK/b7 b - - 0 1 illegal: No proof kernel
2B1Q3/n1QKRq2/B1R2N1B/1R2r1p1/B2b1p2/1q2N1k1/pRn2r2/1B1b1b1b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 Ke6 Kf4 d5 b4 f5 h4 a5 c4 g6 e4 g3 b6 a4 c5 d3 b7 g2 h5 d2 b5 d4 c6 a3 b6 a2 c7 d3 h6 Bg7 h7 Bf8 Nh3 g1Q Ng5+ Ke7 e6 Kd6 e5+ Kd5 e7 Be6 e8B Nd7 c8B Ngf6 b8R Bg7 b7 Qe7 Ne4 Qf7 Qc2 d1B Nbd2 Ra5 Qc7 Qb6 Rh6 Rf8 h8Q Be2 Nc4 d2 Ne3+ Kd4 Rh7 Ng4 Nf6 Bd5 e6 d1B e7 Nde5 Ba4 Nc6 e8B Qb3 Bd2 Rb5 Rc1 Na7 Rc6 Bh1 Bed7 Re5 Be6 Bef3 Ba6 Bfe2 Bd5 Bb5 Be4 Bf1 Qg8 Bh8 Bb1 Bg7 Ra8 Bh8 b8R Bg7 Rb5 Bh8 Nc4 Ne3 Rab8 Nc2 Ne3 Kd3 R8b7 Ke2 R7b6 Kf2 Bc1 Qfd5 Re7 Qf7 Kg5 Kg3 Rb7 Rd8 Qe8 Rd2 Rb8 Rf2 R8b6 Qc3 Rb2 Qd3 R6b5 Qdb3 Nh5+ Kh3 Ng2 Re1 Bf4 Bd4 Nf6 Re5 Ne3 Qfe6 Nd7 Qg8 Kf6 Kh4 Bh6 f4 Ng4 g5 Ne3 Re4+ Kf5 Kg3 Nf6 Qgc4 Nfg4 Re5+ Kf6 Rd5+ Ke6 Re5+ Kd7 Qf7 Nf6
N2Bk3/3R1rn1/b1q2Nb1/p1b1Rq2/Q5QN/4bnp1/B1p2BKN/1B2Nr2 b - - 0 1 illegal: No possible last move
K7/2N2pNp/Bp2Q1rB/8/1r1nQ1bq/1BB3n1/rRq1Bb2/r1k2NRN b - - 0 1 illegal: No possible last move, all moves rejected
1Nb2q2/nB1Bp2Q/p2n4/4Q1QK/3B1b2/nQrq1n1B/1pN1rRB1/R3k3 b - - 0 1 illegal: No possible last move
b2rbk2/1nKBR2q/4pBrB/1pn3N1/1RQbNR2/1QRp3p/7r/B2B4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 b5 Kf3 d5 Kf4 h5 Ke5 b3 g4 h4 a4 h3 c4 d3 f4 b2 c5 d2 c6 d4 a5 d3 c7 Na6 f6 Nh6 f7+ Kd7 g6 Ra7 g7 Rh7 g8R Rb7 f5 Rb8 f6 Rb7 g5 Nb4 g6 Qe8 a6 Bg7 f8B Rb6 a7 Nc2 a8R Rd6 R1a3 Qf7 Be2 Ke8 Nf3 Rd4 Rf1 Rc4 Ng5 Ne1 R8a4 Rd4 Nc3 b1R Nce4 Ng2 Qb3 d1B Bb2 Nf5 Ba1 Nf4 Rb4 Ne6 Rf4 Bd7 c8B Nd6 Qc4 Rh4 Rc3 Nb7 Bg4 Bh8 g7 Nec5 Bf3 Bb3 Bd1 Bc6 Bf5 Rg4 Be6 Ba2 Bc8 Rb2 Bd7+ Kd8 Qb3 Rh2 Qc4 Qh5 f7 Qh7 Qb3 e6 Be7+ Kc7 f8B Rg1 Bf6 Rg3 Bc8 Be8 Bd7 Rgg2 Bc6 Rd8 Bd7 Na5 Qa4 Bd5 Qb3 Kb6 Kd6 Ba8 Nf3 Rg6 Nfg5 Ka7 Kc7 Nab7 Bd6 Ka6 Bde5 Ka5 Bd4 Ka6 Be3 Ka5 Rf8 Ka6 g8Q Bg7 Rf7 Ka7 Be7 Bd4 Rg7 Ka6 Bf6 Ka7 Kc6 Kb8 Qf7 Rh6 Qh5 Rg6 Qg4 Qh6 Rf2 Rg2 Ng3 Be5 Nf3 Rh2 Qgc4 Qh7 Bh6 Bd4 Kb6 Rh1 Ng5 Rh2 Bc6 Kc8 Rf4 Rd6 Be5 Kd8 N3e4 Bd7 Bf6+ Ke8 Kc7 Kf8 Nd2 Be8 Nde4 Rd8 Bd7 Rb2 Ra4 Rf2 Rb4 Rh2 Re7+
1bKnB1Q1/2nRrppn/5Bq1/r1N4N/1Bb5/p1R1p1B1/p4B1N/1k1N3Q b - - 0 1 illegal: No proof kernel
1NK3R1/R2RB1RB/2p3r1/3np1Qp/4q1Bp/n3r1bb/2k1Np2/qQB2R2 b - - 0 1 illegal: No proof kernel
1RbB1N1Q/Q3Rr2/2B2qqp/Brr1b3/1R4B1/N1R1n2k/b7/Qn4K1 b - - 0 1 legal: proof: b4 b5 e4 d5 h4 f5 exf5 c5 bxc5 g5 c4 gxh4 cxd5 b4 a3 a6 axb4 a5 c6 axb4 f4 Kf7 Kf2 Kf6 d4 e5 g4 h6 d6 h3 d7 b3 g5+ Kf7 d5 e4 c7 b2 f6 Kg6 f7 Kf5 d6 h2 g6 Rh7 g7 Qe8 d8R Qd7 Ra7 Qe6 d7 Bd6 f8Q+ Nf6 g8B Nc6 Bd2 Ba6 c8R Nb4 Nf3 Kg4 f5 Rb8 Bg2 Nc2 Nd4+ Kh4 Qe7 Ne3 Na3 b1B Rc3 Rb5 Rb8 Ba2 d8B Be5 Qa1 Rf7 Rb1 h1Q Rb4 Qb1 Bh1 Qc2 Kg1 Kh3 Qc5 Nd5 f6 Qb2 Re7 Bc8 Qa7 Qa6 Ne6 Rc5 Rcb3 Nc3 Nf8 Nb1 Rc3 Qe6 Bh7 Qf5 Bf3 Qg6+ Bg4+ Kg3 Rd4 Qb6 Nd7 Rf8 Bg8 Qa6 f7 Qaf6 Rc1 Nc2 Bc3 e3 Bca5 e2 Rf4 Ne3 Rc3 Qgf5 Bh7 Qh5 Bc2 Qhg6 Be4 Kh4 Bc6 Kg3 Bgf3 Kh3+ Rg4 Rg8 f8Q Rg7 Qh8 Rf7 Nf8 Rb5 Rd3 e1R+ Kf2 Nf5 Rb4 Rc1 Re3 Rc4 Rc3 Rcc5 Bd1+ Ne3+ Bdf3 Ng2 Kg1 Ne3+ Bg4+
1r5R/N1Br2B1/b7/1QprB2r/r2Q2nb/5k2/nBR2b2/1RNK2RQ b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 b5 c4 d5 cxd5 f5 exf5 Nc6 a4 Kf7 a6 Qd7 a7 Qd6 a5 Nb8 a6 Qc6 Be2 Qb7 axb7 Ke8 Bh5+ Kd7 Be8+ Kxe8 g4 Kf7 d4 Kf6 f4 c5 g5+ Kg7 d6 e5 d5 h5 d7 b4 d8B h3 d6 h2 g6 Kh6 f6 e4 f5+ e3 d7 Kg5 g7 Kf4 f7 h4 f6 b3 Ne2+ Kf3 Bb2 h3 Nc1+ e2 Nc3 Rh7 Bc7 Na6 d8R Be7 b8B Nh6 f8R Nb4 g8Q Ba6 f7 Na2 Nb5 Ng4 Rg1 h1R Rd2 h2 Rc2 Bh4+ Kd2 Rh5 Rb1 Rg5 Qh8 Rd5+ Qd4 Bf2 Qf1 e1B+ Kd1 Rd7 Bc3 b2 Rh8 Rd5 f8B Rd7 Ra1 b1R Bg7 Rb4 Rb1 Ra4 Bce5 Rd5 Bbd6 Rb8 Bc7 Rd7 Qc4 Bh4 Bb2 Bef2 a8Q+ Rd5 Re1 Rf1 Qb7 h1R Na7 Kg2 Qbb3 Bg3 Bb6 Rh5 Bgf6 Bh4 Bbc7 Rg1 Qbb4 Nh2 Qbb5 Kf3 Qf1 Rg7 Qg1 Re7 Bg7 Ng4 Qh2 Rf7 Rg1 Rfd7 Qh1#
RB2Nr2/R1R2pBK/6N1/b1Qrb3/4Qrq1/n4NNk/R4Q1p/5nq1 b - - 0 1 legal: proof: f4 a5 b4 d5 bxa5 b5 c4 g5 cxd5 gxf4 a4 e5 e3 b4 a6 Bd7 Bd3 Bb5 axb5 b3 b6 Qd6 Bc2 Qd8 Kf1 Nc6 Bg6 Nb8 Bh5 e4 Bf3 exf3 h3 f2 Ke2 f1N h4 Ng3+ Kf2 Ne4+ Ke1 Ng5 hxg5 Qf6 Ra5 Qe7 Ra1 Qd8 Kf2 Ke7 Kf3 h5 d4 c5 g4 c4 d6+ Ke6 b7 b2 e4 c3 g6 c2 a7 h4 d7 h3 g5 h2 Kg4 f3 d5+ Ke5 g7 f2 d6 f1R g6 Rh5 Qf3 Re1 Nd2 b1Q Ra2 Rf5 Bb2+ Ke6 e5 c1B Qe4 Qe7 d8R Re2 d7 Qa3 Rc8 Rf6 Kh5 Rf3 d8Q Qa5 Qb6+ Bd6 Rc7 Nf6+ Kh6 Nd5 g8N Na6 b8B Rf4 g7 Qa4 Ndf3 Rd2 Qf2 Ne3 Ne2 Nf1 Kh7 Nb4 Ng3 Nc2 Ne7 Rd5 g8Q Na3 Qf8 Bd2 Ng6 Ba5 Bc3 Bdb4 Bd4 Bc3 Qc5 Qad1 Ne1 Qg4 Nf3 Ne3 Rc1 Bb2 Rc4 Qg1 Ra4 Nf1 Be3 Rf5 Bh6 Rf4 Bg7 Bb6 Rc8 Qg5 Bd6 Ba1 Rc6 Rf8 a8R Qf5 R4a7 Ba5 Rcc8 Bb2 Bb8 Qg5 Nh1 Bd4 Rcc7 Q5g3 Qee1 Kf5 Qee2 Qg5 Qe4+ Kg4 Ng3 Qf5 e6 Qh5+ Bh6 Be5 e7 Kh3 e8N Qg4 Bg7
R2Rb3/p5QQ/3q1k2/4qBN1/1Q1Q1nRr/pNK1RBpp/5r1b/5N2 b - - 0 1 legal: proof: b4 f5 a4 d5 e4 b5 exf5 Bb7 g4 Bc8 c4 c6 cxd5 bxa4 b5 c5 Ba3 Nd7 Bb4 cxb4 Be2 Nb8 Bc4 Bd7 Bf1 Bc8 f4 Kd7 g5 Qe8 g6 Qd8 f6 Qe8 f5 Qf7 gxf7 Kc7 Be2 Kd6 Bf1 Kd7 h3 g5 Rh2 Nc6 Rh1 Ne5 h4 g4 Kf2 Nf3 Ke2 Ng5 hxg5 Bh6 Ke1 Bf8 d4 h5 Kd2 e5 g6 a3 b6 b3 d6 h4 g7 b2 d5 g3 b7 e4 b8N+ Kd8 d7 e3+ Kc3 e2 Nd2 b1Q Bg2 e1Q Bf3 Be7 f8R+ Kc7 d8Q+ Kb7 f7 Nh6 g8B Bg5 f6 Qe6 d6+ Qbe4 d7 Qf5 Qb1+ Qb5 Na6 Kc6 Nc5 Kd5 Nf1 Ke5 Nh3 Qbc6 Bh7 Ng4 Bf5 Qd6 Nb3 Be3 Ng5 Bg1 Qb6 Rb8 d8R Ne3 Qb4 Bh2 Qd4+ Kf4 Qc2 Ng2 Re1 Bd7 Re3 Be8 Rg8 Rb7 f8Q Rf7 Qg7 h3 Ra8 Rf8 f7 Rh7 Qb1 Rh4 Qh7 Qb6 Qa1 Qd6 Qb4 Ke5 Qd1 Kf6 Qdd4+ Qee5 Rg7 Rh8 f8Q+ Bf7 Rg8 Nf4 Qfh6+ Bg6 Rgd8 Rf8 Re4 Nh5 Rg4 Nf4 Rg1 Rf7 Rg2 Rf8 Re2 Rf7 Re3 Rf8 Qh5 Be8 Q5h6+ Ng6 B3e4 Rf7 Bb7 Rc7+ Kd3 Rc2 Bf3 Rf2 Kc3 Ra2 Qd7 Rf2 Qhh7 Nf4 Qdg7#
1N1BQr2/R7/n2QR1nQ/5b2/Q1qN4/R5R1/br1Bk1qN/K1n1qr1r b - - 0 1 illegal: No possible last move
1BKQ2b1/4N2r/B5qn/1bn5/QR1n2R1/Q1N1q2Q/r2rN1nk/1B3B1q b - - 0 1 illegal: No possible last move
br1b1r1N/1rNq4/6N1/k7/1RRN4/R2r1q2/QBQ1qnQK/rR4Bb b - - 0 1 illegal: No possible last move, all moves rejected
Q1r5/6b1/NrRKn3/r1rRNQ2/4B2r/1kQ3Nn/2rQNq2/nBR3q1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b3 f5 Ba3 h6 Bd6 f3 Be7 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Kf7 e4 c5 h4 a5 d4 a4 b6 g6 b4 g4 f6 a3 d6 Ke6 d7 g5 f7 c4 d5+ Ke5 b7 c3 b5 a2 d6 c2 b6 c1N h5 Ne7 h6 Qe8 d8Q Nd5 h7 Nc6 b8N Nd4 b7 Ne6 d7 Nb3 Na6 Rc8 b8N Bg7 f8Q Qf7 Bd3 Kd4 Nd2 Kc3 e5 Qf5 Rb1 a1R Nc6 Ra5 Nf1 Na1 Rh6 Qf7 Be4 g3+ Ke1 g4 Ne2+ Kc4 Kd2 g2 Nfg3 g1Q Qf6 f2 d8R f1R Qf5 Rf3 Rc1+ Rc3 Qe1 f3 Qd6 Nf6 Qd4+ Kb3 Rd5 Rcc5 Kd3 f2 Qd2 f1R Rg6 Rf2 Rh6 Nd8 e6 Nh5 e7 Ne6 e8B Nhf4+ Ke3 Qf6 Ne5 Nh3 Bc6 Qf7 Bb1 Qa7 Ke4 Rg2 Nf1 g3 Rf6 Rf2 Bb7 g2 Nfg3 Rhf8 Rh6 Rf6 h8Q Qb6 Ng6 Rf4+ Ke5 Rh4 Bc6 Qf2 Kd6 g1R Ne5 Rg2 Rg6 Rb8 Qc8 Rf8 Qb7 Rfc8 Qa8 Qa7 Bb5 Qg1 B5d3 Qf7 Be4 Rb7 Qh5 Qff2 Qf5 Rb6+ Kd7 Nd8 Rc6 Ne6 Kd6 Nc2 Qdg5 Qfe1 Nc3 Na1 Qgf4 Rga2 Nce2 Rac2 Qfd2 Qef2 Q4c3+
B1B1NR2/1rrb1rr1/6NR/3R3r/2n4R/n1QrQ1BQ/4n3/Kn1Qn2k b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 h3 f5 Bf4 g5 Be3 f4 Bc1 Qf6 h4 Qf5 gxf5 g4 Qd2 Be7 Qd1 Bg5 hxg5 Kd8 Rh6 Ke7 Rh1 Ke8 Kd2 Ke7 c4 Kd6 Kc2 Ke5 e4 a5 b4 d5 Kb2 h5 b6 h4 b7 h3 g6 a4 b5 d3 c5 f2 f6 a3+ Ka2 d4 g7 d2 b6 d3 c6 h2 f7 g3 f8R g2 c7 f3 Nh3 g1N Nf4 Rh7 Rf6 Nd7 b8Q Ne7 g8Q Nf5 b7 Nh4 Qa7 Ne2 b8Q Nb6 Qc4 Ng2 Nh5 Bd7 Qb4 Rg7 Rh6 Ne1 Nf4 Nc4 Q8f8 Rc8 Bg2 f1N Nc3 f2 Nb5 Rb8 c8B Rb7 Qba5 Nfe3 Qfd8 f1R Qh4 N3c2 Qe3 Rf3 Qh3 Rf2 Nd5 Rff7 Nd6 Rc7 Ne8 Rb7 Rf1 h1R Rf4 Rc7 Rfh4 Rh2 Kb3 a2 Qb4 Rh1 Ne7 N2a3 Rb1 a1N+ Ka2 Na1c2 Rb2 Nb1 Qc3+ Ned4 Rbb6 N2a3 Rbd6 Rh2 Ka1 Rb7 Qde2 d1R Bf3 Rd2 Qd1 Rdb2 Bg2 d2 Bf3 Rc7 Bg2 Bf5 Rd7 Rbb7 Ng6+ Ke6 e5 Ne2 Be4 Bg4 Bc6 Kf5 e6 Rh1 e7 Rh2 Qdb3 d1R Bd5 Rd3 Qd1 Rb2 Ba8 Rbb7 Qed4 Rh1 Bf4 Rh2 Qa7 Ke4 Rd5 Bd7 Bg3+ Kf3 Qad4 Rg2 Bh2+ Rg3 Qe5 Kf2 Qee6 Rg5 Qhe3+ Kg2 Q6h3+ Kh1 Nd6 Rb5 e8R Rb3 Rf8 Rbb7 Ne8 Rh5 Bg3+
K1NQB1n1/BR1b1Q1B/2NqRQ2/q3r2k/2r2Qr1/8/nNbq3p/5bN1 b - - 0 1 illegal: No possible last move, all moves rejected
n1QK4/nr5N/QQ1R2N1/bQBqR1B1/1R6/pq3rrn/1BR5/1k3bq1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 Kf7 d4 e5 h4 a5 b4 c5 f6 Kg6 d6 Kf5 d7 Ke4 h5 a4 b6 f3 Kg3 c4 Kh4 c3 b7 a3 h6 c2 h7 f2 d5 f1R b5 g3 b6 g2 g6 Qe7 Kg5 Qe8 d8Q Bh3 f7 Rf4 d6 Rf6 g7 Ne7 g8Q Qb5 d7 Bg4 Qf1 Qb4 Ra2 Nbc6 b8R Na7 b7 Nd5 Nf3 g1N Rh5 Bh3 Nh4 Nb6 Ng6 Qb3 Qa6 Bb4 f8B Rf3 Bc5 Bf1 Qc7 Rg3+ Kf6 Ba5 Ke7 Nh3 Qgc8 Rf8 h8B Rff3 Bg5 c1Q d8R Qcd1 Rd6 Qd2 Rc2 Qdd5 Rc4+ Kd3 Kd8 e4 Nd2 e3 Bb2 e2 Ne4 e1Q Nf6 Qe3 Nh7 Qg1 Rb4+ Kc2 Qc6 Nf4 Qcb5 Kb1 Rh2 Nh3 Rc2 Bc4 Qcc6 Be2 Rc8 Bc4 b8Q Bf1 Qbc7 Rb8 Qc6b7 Na8 Qcb6 Qe5 Re2 Qed5 Re5 Qd2 Q7d7 Rb7 Rcc6 Qdg2 Qc8 Q2h1 Rd2 Qhg2 Rc2 Qd2+ Rd6 Qdd3 Bgc1 Qdd5 Bg5
R1b1Bb2/R1n1q3/Q1Q4R/N3n2q/1pB2N1n/rr1BK2R/8/kQr2B1q b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h6 g4 Nd7 g6 Nb8 g7 Ra5 Na3 Ra7 Nb1 Ra8 g5 Bd7 g6 Qc8 Bb2 Qd8 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 a4 Kd6 d4 e5 h4 b5 a5 c5 f6 c4 a6 c3 f7 g4 h5 g3 h6 e4 h7 b3 a7 g2 Nd2 e3 Nc4+ Kd7 d6 Kc6 d5+ Kc5 d7 Kb4 d6 c2 Rh6 Kc3 Nh3 c1Q Qc2+ Kd4 Na5 g1R Nf4 Nf6 g8B b4 g7 Qe7 d8R b2 d7 b1Q Re8 Qcb2 d8Q+ Nd5 Qd6 Nd7 Qc6 Nc7 Kf3 e2 Qa6 Rb8 a8B e1N+ Kf2 Rb6 Be4 Ng2 Bed3 Ne5 Ra3 Nh4 Ra2 Be6 Ra8 Bc8 Ra3 Qb3 Qc6 Qc4 Ra2 Kc3 Ke3 Rb8 Ra7 Ra8 Rh2 Ne6 Rh1 Kb2 Rh3 Qd5 Qc2+ Ka1 Qcc6 Qc7 Qc2 Bd6 f8Q Qe7 Qf6 Nc7 Bf7 Qd1 g8B Qh5 Bfg6 Qh1 Bgc4 Rg8 Be8 R8g3+ Kf2 Re3 h8R Bc5 Qfc6 Bd6 Bg2 Rc1 Bgf1 Rg3 Be4 Rb3 Bed3 Qh7 Rg8 Bf8 Ke3 Qe7 Bd7 Ne6 Qab5 Neg6 Rc7 Ne5 Nb7 Raa3 Na5 Bg7 Qba6 Bb7 Ra8 Bf8 Be8 Bc8 Rca7 Nc7 Qb1+
bnb5/1R5B/1r1nQp2/1N2Bq2/1R1B4/1BRbNRn1/K4N1k/2rq2Qq b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qc2 a4 Qd1 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Qe7 Na3 Qd7 Nb1 Qd8 e4 Ke7 d4 Kd6 Kd2 h5 Kc3 c5 Kb2 a3+ Ka2 h3 g4 f6 a6 c4 e5+ Kc7 g5 h4 e6 Kd6 a7 c3 g6 f3 e7 c2 e8Q f2 g7 h2 b6 h3 b7 Ne7 g8B Rh4 Bd3 f1B Nc3 Bd7 Be3 c1Q Rb1 Ba4 Rb4 Na6 b8R Rh7 R8b7 Rb8 a8N Qd7 Nb6 Nc8 Be4 Rh6 Beh7 Qf5 Qg4 Bc6 Qeg6 Bd7 Nc4+ Ke7 Be6 Bd3 Nb5 Nd6 Bf4 Qe1 Be5 Qd1 Ne3 Rh4 Beg8 Rc8 Qe4 Rc1 Qgg2 Nb8 Qeg4 Nf7 d6+ Ke6 Q2e4 Bc8 d7 Rh5 d8B Rh4 Bb6 Rh5 Nf3 Rh4 Rf1 h1B Qg5 h2 Nd2 Bf3 Qg1 h1N Qeg4 Ng3 Ne4 Rh1 Nf2 Bfe4 Rc7 Ba8 Qh3 Rc6 Ba7 Rb6 Rc3 Ke7 Qg4 Nd6 Bb3 Kd7 d5 Ke7 Qc4 Kf7 Bg8+ Kg6 Bh7+ Kh5 Qc6 Kg5 Qd7 Kh5 Qe6 Kg5 Ne4+ Kh4 Rf3 Nb7 d6 Kh3 d7 Nd6 Qf1+ Kh2 d8R Rg1 Rd7 Rh1 Rb7 Rg1 Bc2 Rh1 Nf2 Rg1 Kb3 a2 Kb2 a1Q+ Kb3 Rc6 Bad4 Qac1 Ka2 Rb6 Ng2 Qh6 Ne3 Qhh3 Qe1 Qg2 Ba4 Qh1 Bb3 Qe2+ Qd2 Rc1 Qb2 Qed1 Qe2 Qe4 Qe1 Qf5 Qg1+
R2N2b1/1r2n1p1/R3b1RN/B1KQbnq1/3rR2q/N2BN1k1/4n3/1B2rQ2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Ke7 e4 Kf6 h4 Ke5 d4+ Kf6 b6 c5 h6 c4 b7 c3 e5+ Kf5 e6 c2 h5 f6 e7 b3 e8B f3 Ke3 Kg4 h7 b2 h6 f5 d6 Qb6 d7 Ra4 d8Q Be6 Bd3 Qc5 Ne2 f2 Nf4+ Kg3 Bd2 c1Q Bg6 f1R Ng2 Q5c3 d5 Rg1 d6 Rd4 d7 Nc6 b8R Nge7 Na3 b1N Ra8 Qc4 Rh4 Nc3 Qf1 Ne2 Re4 Rg8 h8N Qb4 Qd1 Re1 h7 Qcc5 Nf7 Rh8 Bc3 f4+ Kd2 f3 Ke3 f2 Nh6 Rg8 h8R f1B Rh7 Qbc4 Ba5 Qh5 Qb1 Qcd5 Ra6 Qh4 Qa8 Rh8 d8N Qdh5 Qab7 Q5g4 Qd7 Bg8 Qd5 Nf5+ Kd2 Qhg5+ Ne3 Bd6 Kc2 Be5 Kb3 Bh3 Qc1 Rg1 Qf1 Nce7 Bb1 Q4h4 Ra8 Rd2 Kb4 Rb2+ Kc5 Rb7 Qc1 Rd1 Ra2 Rd4 Qf1 Bf7 Bd3 Re8 Rh8 Bg4 Rf8 Bg8 Rf6 Nd6 Bh7 B4e6 Rg6 Ndf5 Rb2 Nc6 Rb6 Nce7 Rba6 Rb1 Nc6 Re1 Bb1 Rb8 Nd8 Rb7 Rg4+ Kh2 Rf6 Nfg3 Bhd3 Ngf5 Re4 Kg3 Rg6
1b3N2/1n6/1BkNBKQb/b3Qnr1/RR1q1pr1/2Bn4/5B1b/1Rb1N1R1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 h5 Kd2 c5 Ke3 a5 Kf4 f5 Ke5 a4 e4 a3 d6 a2 d5 c4 b6 c3 b7 h4 b5 h3 g5 h2 b6 f4 g6 c2 g7 Ra4 Na3 Rh7 Qd4 Rh3 Be3 c1B Nc4 Nh6 g8R Ba3 Nf3 g1B Ne1 g2 Bf2 Qe8+ Kf6 Rf3 e5 Nc6 b8B Na7 b7 Nb5 Qe4 Rh3 Qg6 Rg3 Rb1 Rg4 e6+ Kd8 e7+ Kd7 Rb4 Ra5 Ra4 Nf5 Bba7 a1B+ Bad4 Qb8 Bc3 Qa7 b8R Bh6 Be2 Qb6 Bd1 Bb4 Bb3 Bb2 Rg7 Bc1 Rb7+ Kc8 e8Q+ Qd8+ Qe7 Qb6 Qe4 Qd4+ Qe5 Kd8 d7 Nbd6 Rb5 Nb7 Nd6 Kc7 Rb6 Rb5 Bc4 Ba5 d8N+ Ne7 Rg8 Nf5 Ne6+ Kd7 Nf8+ Kc7 Bh4 Bf2 Rf1 g1B Ba2 Rc5 Rbb4 h1N Bg3 Bfe3 Bf2 Bh2 Rg1 Ba3 Rb1 Bec1 Bb3 B3b4 Rg7+ Kb6 Rc7 Rb5 Rc4 Bc5 Rcb4 Kc7 Ba2 Ba7 Nf7+ Kb6 d6 Bb8 d7 Kc6 d8B Rd5 Nd6 Rc5 Bh4 Nf2 Bb6 Nd3 Be6 Rg5 Bd2 Rc2 Bc3 Rcg2 Bf2 R2g3 Qf7 R3g4 Qg6
rr1NrB1Q/N1k1n3/Kbn1pB1n/3Q4/2Br4/Q3b1r1/1R1N2Nq/1B4R1 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 c4 Bb7 f4 Bc6 fxg5 f4 h5 Bd5 h6 Nxh6 cxd5 Ng8 Ke2 Kd7 b4 c5 d4 h5 b6 a5 b7 e6 g6 e3 Kd3 h4 Kc4 f3 Kb5 h3 g7 c4 d6 f2 d5 a4 g5 a3 g6 a2 Nf3 e2 Rh2 e1R Nh4 c3 Bc4 f1R Ba3 Rf7 Rb2 h2 Qa4 Rf4 Nd2 Re5 Ng2 h1R Rg1 Na6 b8B a1N Qb3 Nf6 g8Q c2 g7 R1h3 Qd3 Kc8 d7+ Kb7 Qe3 Bc5 d6 Qc7 d8Q Nb3 d7 Nd5 Qgf8 Qd6 g8B Nd4+ Ka5 Kc6 Bh7 Nf5 b5+ Kb7 b6 Rd4 Qdg5 Nh6 d8N+ Kc8 Qfg7 Re8 Qh8 Nab4+ Kb5 Rf5 b7+ Kd7 Qf3 Qh2 Be5 Rg3 Bf6 Kc7 b8N Ba7 Nbc6 c1B Nb1 Bc5 Na7 Nc6 Ka6 Re5 Qb3 Be3 Nd2 Rf5 Qh5 Re5 Bb1 Reg5 Nb7 Reb8 Bb4 Bb6 Nd8 Rg8 Qa3 Re8 Bf8 Nde7 Qd5
B4r2/1B2B3/1QBRb1nk/K3R1b1/1QN1n1q1/2nQ1N2/QN1b1prr/3n4 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 e4 h5 g4 f5 d4 Kf7 Kd2 Kg6 b6 c5 b7 f3 e5 h4 d6 h3 d5 h2 e6 f4 d7 f2 d6 b3 Kc3 f3 e7 c4 Kb4 b2 e8B+ Kg7 g6 c3 g5 c2 Nd2 b1N Ra5 Rh7 Bg2 f1R Nc4 f2 Ba3 c1B Qd3 Rh5 Re5 Nc3 Nf3 Nf6 Nb2 Qc7 d8N Qc6 Nf7 Qa6 Bc6 Nbd7 b8Q Bd2 Rg1 Rc1 Rd1 h1N Qbb5 Rb8 Bb7 Qc6 Ka5 Nfd5 Qb4 Be7 Ba8 Nf8 d7 Rh7 d8Q Qd7 Nd6 Ng3 Qdb6 Ne3 Ndc4 Qg4 Bb7 Rh2 Bc6 Kg8 g7 Ng6 Ba8 Kh7 g8B+ Kg7 Bgd5 Nge4 Bdb7 Be6 Bh1 Rf8 Bg2 Nh4 g6 Kh6 g7 Ng6 g8Q Bd8 Qb3 Bg5 Be7 Rb1 Q3b4 Rc1 Re1 Ned1 Rd5 Ng3 Ree5 Nge4 Rd6 Ne3 Qf7 Rg1 Qe8 Ned1 Qea4 Rh3 Qa2 Rh2 Bh1 Rgg2 Qbb3 Rg3 Ne1 Nf6 Bhc6 Nfe4 Nf3 Rgg2 Q3b4
3kqQn1/Rb1B3n/qNnQ2B1/5RpN/5Q2/3qn1B1/N3bKB1/1r1r1N2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 e5 a4 exf4 axb5 g6 h4 Bf5 h5 Bh3 h6 Bg7 hxg7 Bc8 g3 fxg3 b4 f5 e4 c5 d4 a5 b6 h5 b7 c4 e5 c3 e6 a4 d6 a3 d7+ Ke7 b5 h4 d5 g2 d6+ Kf6 e7 a2 e8B c2 b6 h3 Ne2 g1N Nd2 h2 Nf4 Rh6 Bg2 Nc6 b8Q Ba6 b7 Nh3 Rf1 Ng5 Kf2 h1B Nh5+ Ke6 Qc7 f4 b8N f3 Ba3 Qc8 d8Q c1Q d7 Qc3 Bd6 Qd3 Bg3 Nh7 Qf4 g5 Bg6 Bb5 Qdf8 Qe8 Rc1 a1Q d8N+ Kd5 Nd7 Qa6 Rc4 Rb8 Ra4 Bc4 Ra3 Rb1 Ra4 Qc8 Ra7 Qa6 Nb7 Ke6 Na5 Bb5 Nab3 Bc4 Nc1 Bb5 Q8f5+ Ke7 Nb6+ Kd8 Qf8 Bc4 Na2 Bb5 Bf7 Re6 Bg6 Re1 Qc1 Rd1 Qca3 Ngf6 g8B Bc4 Be6 Ng8 Kg1 Bb5 Bd7 f2+ Kh2 Bc4 Qad6 Bb5 Re1 f1N+ Kg1 Bc4 Re5 Ne3+ Kf2 Bb5 Nf1 Bc4 B2e4 Bf3 Rd5 Be2 Rb5 Bd5 Bg2 Nb8 B2e4 Bb7 Rf5 Nc6 Bg2
7n/RR3Q1N/8/2pq1r1R/rBBR4/2nbbqNK/r2k1B1Q/2Q2rBq b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 f4 Kf6 Kf2 h5 g4 e5 Kg2 c6 d6 e4 d7 e3 g5+ Kg7 b6 b3 b7 b2 f6+ Kg6 d5 Kf5 d6 Ke4 f5 e2 f7 e1Q g6 Ne7 g7 Qc3 g8Q Nd5 f6 Bh6 Nd2+ Ke3 f8R b1R f7 Rb5 Bc4 h3+ Kg3 h2 Ngf3 Qcf6 Ng5 h4+ Kg4 Rb2 Nde4+ Rd2 Ra3+ Nc3 Ng3 h3 Qg7 Rg8 Nh7 Ra5 Rb3 Ra4 Ba3 Qa5 Qc1 Bf4 Rd8 Rf8 Qg8 Qff5+ Kh4 Qae5 Bc5+ Qd4 Re8+ Qe4 d8B Nd7 Bdb6 Ne5 d7 Ng6+ Kg4 Nh8 Rd8 Qg2 b8R Bb7 Ra8 Qf3+ Kh4 Bc8 Ra7 Bb7 Rda8 Bc8 d8Q Bf5 Qd7 Be4 Rd8 Bh6 Qf5 Bf4 Qh5 Bd3 Rg1 h1R Qh6 Re8 f8B h2 Qf7 Re5 Rg2 Rf1 Rb2 h1Q+ Rh2 Qd1 Rb5 Qe2 Bb4 Rf5 Bfc5 Kf3 Rd5 Rda2 Rd8 Qde4 Bg1 Q2e3 Bd4 c5 Rbb7 Qe6 Rd6 Qe2 Bdf2 Be3 Rd4 Qd5 Ne4 Qd1 Qf4+ Ke2 Kg4 Qe5 Rh5 Qd5 Qh2 Ra5 Qa1 R5a4 Ng3+ Kd2+ Kh3 Qd1f3 Qc1+
1Q1Rr3/B1R2qbq/2KN1qpQ/5b2/rq3nkQ/2b1R1NN/1QB5/n2N4 b - - 0 1 illegal: No possible last move
4KQR1/3BbQ1k/1n2B1p1/qb6/2QNNRb1/2B1qrBN/3nbr2/2N3r1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 f5 Kf3 Kf7 d4 c5 e4 b3 h4 g6 h6 c4 h7 Kg7 e5 b2 d6 c3 b6 c2 e6 Ra7 b7 Qa5 d5 Qe1 e7 Bd7 e8B Ne7 h5 Ra4 h6+ Kf6 Rh4 Ng8 Nc3 b1B Bd2 c1Q Na2 Qc7 Qe2 Qec1 Qc4 Ne7 Bh3 Qd8 Bc3+ Kg5 Bg4 Bb5 d7 Na6 b8B Ng8 d6 Qb6 d8N Be7 d7 Ra3 Nc6 Nc7 d8Q Nd5 Qd7 Ngf6 Nd4 Rf8 h8Q Qa5 h7 Nb6 Qde6 Ne4 Bd7 Qd2 Nc1 Bc2 Qf7 Qe3+ Kg2 f3+ Kh3 f2+ Bg3 f4 Bge6 f3 Rf4 Kh6 Kg4 f1R Nh3 f2 Qhf6 Na4 h8N Rg1 Qf5 f1B Rb1 Bc6 Rb8 Bb5 Qfc5 Nb6 Qc8 Rg8 Qcf8+ Rg7 Re8 Nd2 Rd8 Kh7 Rc8 Bd6 Kg5 Bf5 Kf6 Bg4 Rd8 Bfe2 Re8 Be5+ Ke7 Bb8 Rc8 Bd6+ Ke8 Bc5 Qf6 Ra2 Nf7 Be7 Nd6 Rf7 Ne4 Ra1 Na2 Raf1 Nc1 Rf2 Qg8+ Kh6 Rf5 Ba3 Kd8 Ba4 Qe7 Rf6 Qgf7 Bb5 Qd6 Bc5 Ke7 Bb4 Rg8 Ba3 Ke8 Bc5 Rg5 R6f3 Rf5 Bb4 Rf4 Ba3 Qf5 Kh7 Qdf8 Be7 Q5f7#
1R1Rn1n1/2N2qBr/R4N2/2k2B1N/bb1Q1Kn1/3Q1b1b/1Q1Q2p1/nR1r4 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 h4 g5 e4 c5 d4 f5 e5+ Ke7 e6 Kd6 e7 c4 b6 c3 h6 c2 b7 b3 h7 b2 h5 Qe8 h6 Bd7 Bh3 Qf7 Nd2 b1B Bb2 c1N Ne2 Ba4 Ng3 Nd7 b8R Nb3 Nh5 Ndf6 Qc1 Ne8 Ne4+ Kd7 Nef6+ Kd6 Ra2 Na1 Qd2 Bd3 Rb1 g4+ Kf2 f3 Kg3 f2 Kf4 f1N Ra3 Kc7 d6+ Kc6 d7 g3 d8Q Be4 d5+ Kc5 d6 Ne3 d7 Ng4 Ra2 Bf3 Ra3 Bad1 Ra6 Ba4 Qd3 Ra7 Be5 Rb7 Qa5+ Rb5 Qad2 Rb6 d8R Rd6 Kg5 f4 Bb2 Nh2 Bf5 Ng4 Be5 Bfd1 Bc3 f3 Kf4 f2 Be5 f1B Bb2 Ng7 e8N Bf3 Nc7 Bh3 Be5 g2 Bb2 Ne8 Bc3 Ne7 Be5 Rg8 h8Q Rg7 h7 Ng8 Bc3 Rg6 Qg7 Rh6 h8Q Rh7 Qb2 Qe6 Qd7 Qf7 Qdd2 Re6 Q7d3 Re1 Nfd5 Rf1 Bg7 Rd1 Ndf6 Be7 Raa8 Kc6 Ra5 Bb4 Ra6+ Kc5 Bf8+ Qe7 Nfd5 Nd6 Qhe5 Qf6 Bg7 Ne8 Qee4 Qg6 Ndf6 Qf7 Qed4#
1BR1RbB1/1qqB3b/1N1N3b/1Qr3R1/2rR4/1KbB4/pQ1qQ2b/6nk b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Ke7 d4 Kd6 Kd2 h5 Kc2 f5 e4 c5 b6 a5 b7 c4 b8R f4 b5 g2 b6 h4 b7 c3 g6 h3 g7 a4 Ne2 g1B Bg2 g3 Qd3 h2 Na3 f3 Qb5 f2 Bf1 g2 Nf4 Ne7 g8B Rh5 Bd3 Bf5 Rc8 f1Q b8Q+ Qc7 Qb2 Ra6 Q8b5 Nc6 Re8 Be3 Rg1 h1Q Rb1 Bh7 e5+ Kd7 e6+ Kd6 e7 Qe1 Rc8 Bd2 e8B Ne5 Bd7 Rc6 Ra1 Nf3 Nc4+ Ke7 d6+ Kf6 d5 Kg5 Rb1 a3 Kb3 Kh4 Ra1 Qe2 Re1 Qf2 Ree8 Kg3 Ra2 Be1 Be3 Kh2 Ba7 g1B Bb8 c2 Ra1 Bc3 Rae1 c1B R1e5 a2 Rg5 Ne1 Bg4 Rh4 d7 Ba5 d8Q Bc5 Qe7 Bc3 d6 Nf3 d7 Qhg2 d8R Kh1 Re5 Bh2 Rh5 Ng1 Nd5 Bh6 Ndb6 Qd2 Qe2 Bcf8 Rg5 Rc5 Rd6 Qa8 Bd7 Qab7 Rdd5 Rg4 Nd6 Rgc4 Rd4
2b1r3/Rk1N3R/3R1B1q/1Bn2q2/4R2q/4NQp1/bnbNQbb1/1NK2Q2 b - - 0 1 legal: proof: c4 a5 g4 e5 a4 b5 axb5 f5 f4 d5 cxd5 Qd6 Nf3 Qh6 Rg1 Qxh2 Rh1 Ra6 Ng1 Rf6 Qb3 exf4 Qd1 f3 Nh3 f4 Ng1 Rf5 gxf5 Qh3 Ra4 Qh6 Ra1 Qh2 d4 Kd7 Kd2 g5 b4 h5 f6 c5 f7 Kc7 d6+ Kb7 d5 a4 b6 h4 d7 a3 d8Q f2 e4 h3 d6 a2 b5 c4 d7 g4 e5 c3+ Kc2 g3 e6 f3 e7 Nh6 e8N Na6 Qe2 Ng4 Nc7 Ne5 Bg5 Nc4 Bf6 Nb2 Nd5 Bc5 Ne3 Re8 Kc1 c2 f8Q Bd4 Qde7 Nc5 d8R+ Nd7 Qa3 Nc5 Bg2 f1B Rd5 f2 Nf3 Bf5 Nfd2 Bc8 Be4 Bg2 Bd3 f1B Rd6 Bd5 Bc4 Bfg2 Qad3 Bf7 Qf5 Be4 Qff3 Qf2 Re1 h2 Bd3 h1B Bc4 Kb8 b7 Bg2 Rh1 Kc7 b8N Kb7 b6 Bg8 Rh7+ Bf7 Qg4 Qf5 Bb5 Bd3 Nd7 Bg8 Nef1 Bf2 Qgf3+ Qe4 Nb3 Be3+ Qd2 Bd5 Qh6 Qa4 Qh1 Nd1 Bc6+ Ka6 b7 Qh4 b8R Bf2 Rb4 B3e4 Bb5+ Kb7 Qe1 Bg8 Kd2 c1Q+ Ke2 Qch6 Ne3 Bgd5 Kd2 Bf5 Qhf1 Bfe4 Nc3 Nb2 Kc1 Bb1 Nd2 Bd3 Rb1 a1Q Qee2 Qa4 Ra1 Bc2 Rg4 Qaf4 Ncb1 Qf5 Re4 Bf7 Ra8 Ba2 Ra7+
r1Q2R2/q6N/1r4R1/b1r2rB1/1n1BQp1R/K5Rb/bB1Nrkq1/2B2N2 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Ra5 f4 Bh3 Nc6 Ra4 Nce7 Ra1 Nf5 gxf5 Nh6 Bg4 hxg4 Qc2 Ng8 Qa4 Kd7 Qd1 Ke8 e4 Kf7 b4 Kf6 h4 Ke5 d4+ Kf6 Kd2 c5 Kc3 g5 Kb2 a5 e5+ Kg7 d6 Kh6 h5 g3 e6 a4 d7 c4 f6 f2 e7 f1B e8N c3+ Ka3 g4 d5 Kg5 b6 g2 h6 c2 h7 g3 f7 Qf6 d8B Be2 d6 Kg4 b5 Qe7 b7 Nf6 b8R Nd5 b6 Nb4 Qd5 Bc4 b7 Ba2 Ne2 g1R d7 g2 Nd2 Re1 Qe4 g1Q Bb6 Qg2 Ng3 Re2 d8B Rg8 h8Q Rg6 Bd4 Rb6 Ngf1 Ra5 Rb1 Rf5 Rb3 Bg7 Bdb2 Bc3 f8R Be6 Ra8 Qd7 b8B Qa7 Be5 Bd7 Nh2+ Kg3 Nf6 Kf2 Nhf1 Be6 Rh4 Bc8 Nb1 Be1 Nh7 Bd7 Bd2 c1R Rg3 Rc5 Bg5 Qa6 Rae8 Nc6 Rgh3 Bg8 Rb3 Rf6 Ka2 a3 Bdc1 Bh3 Re6 Rf5 Rg3 Bb4 Kb3 a2 Rd8 a1R Nbd2 Qb7 Bg7 Ra8 Re8 Ba5+ Ka3 Qe7 Rg6 Ba2 Qg8 Nb4 Bgd4+ Ke1 Qge6 Qf7 Qc8 Qa7 Bg7 Kf2 Rf8 Qa6 B7f6 Qa7 Bfd4+
r2R4/B1NbbbRK/qk2B1R1/rq6/Q1Q2QB1/r1p1nRB1/2r1N3/1q6 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Kd7 d4 f5 Kd2 h5 Ke3 a5 Kf4 c5 e4 Kc7 g6 a4 g7 c4 d6+ Kb7 d7 c3 d5 g2 d6 g3 b6 a3 b5 a2 e5 h4 e6 h3 e7 h2 Kg5 f4 Kg6 f3 e8B f2 Qa4 Rh5 Bf4 Ra7 Bc4 f1B Na3 Rh8 Be6 Rh4 Ne2 Ra8 Rg1 Nf6 g8R h1R Rg7 R1h2 Re1 Qc7 d8Q a1Q B8d7 Be7 Qg8 Qc6 Bg4 Ra5 Bde6 Rh8 d7 Nd5 d8R Bd7 Rd1 Qb1+ Rd3 Ne3 Qf7 Qc8 Be5 Qa8 Qff4 Qa6 Qfc4 Nf5 Rf3 Ne3+ Nc2 Qb2 Nb4 Rf8 Nd5 Qb4 Rh1 g1R Nc7 g2 Bg3 Qb2 Qc2 Ra3 Q2a4 Rh5 Rh2 Rh1 Rh4 g1Q Rh3 Rc5 Kh7 Rh2 Rh6 Bh3 Rhg6 Qgb1 Bef5 Be8 Be6 Bf7 Rd7 Kb8 b7 Ka7 b8B+ Kb6 Rd8 Rd5 Nd4 Rc2 Ne2 Kb7 b6 Qbb5 Qcb4 Kc6 b7 Kb6 Qe4 Qc6 Qf4 Ra5 Qfc4 Qcb5 Rf4 Q5b4 Bc8+ Bd6 Bf3 Rc1 Re8 Bf5 Bg4 B7e6 Bd7 Rf7 Nb5 Bc5 Bd6 Q4b3 Rd8 Rc2 Bc8 Re7 b8Q+ Rb7 Rf1 Bf7 Rf3 B5e6 Bdf4 Be7 Qe5 Qb4 Qed4+ Qc5 Bb8 Ra7 Nc7 Ra8 Qf4 Qcb5 Bd7 Be8 Bc8 Bc6 Bd7 Bf7 Bde6 Bd7 Ba7+
7Q/r5qp/4qk1N/NR3qnr/1R1R3n/3B2N1/rN1QBQnK/q1bQ4 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b3 g3 Bb2 Qg5 Bd4 Qd8 Bf2 Ba3 h3 Bg4 hxg4 Qf6 g5 Ne7 Qc1 gxf2+ Kd1 Bc5 g4 Ng8 Qc2 Qe7 Kc1 Qd8 Qd1 Bf8 e4 Ke7 d4 a5 Kd2 c5 Ke2 f5 Kf3 c4 Kg2 c3 b4 c2 b6 c1Q b5 f3+ Kh2 f4 e5 a4 d6+ Ke6 b7 a3 b6 a2 d7 Bd6 d5+ Ke7 e6 Qc5 g6 Qe8 d8Q+ Kf8 g5 Kg7 e7 Qc7 Nc3 Ba3 d6 Bb2 d7 Nc6 b8Q Qf8 e8B Nge7 b7 Nf5 Rb1 a1Q Bd3 f1Q Na4 f2 Qa7 Qe1 b8N f1R Qf2 Ba3 Ne2 f3+ Ng3 Bc1 Nb2 Ncd4 Nc6 Ne6 Na5 Nh4 Be2 Qf5 Bf7 Nf8 Bfc4 Ne6 Bcd3 Ra7 Qd2 Re8 Qd1 Kf8 g7+ Kf7 g8R Re7 g6+ Kf6 g7 Ng5 Qc8 Re5 d8Q+ Qe7 Qdd7 Qee6 Qa8 Qc3 Rb8 Rd5 Rb4 Rc5 Qe3 f2 Qh8 Re5 Qed2 Re1 Qd4 f1N+ Kg1 Ne3+ Kh2 Neg2 Qf2 Re4 Rb5 Ra4 Rf1 Ra2 g8N+ Kg6 Rh1 Qg7 Nh6 Kf6 Na4 Qe7 R1b4 Ng6 Nb2 N2f4 Rf1 Qd6 Kg1 Qde6 Qc5 Ng2 Kh1 Qe4 Qg1 Qe6 Rff4 Rf1 Rfd4 Rf4 Qgf1 Rh4+ Kg1 Rh5 Qf2 N6h4 Kh2
k1n1n2N/3B1nBK/2Q2N2/4b2R/2r1QqQR/B1N2p2/1nr1B1n1/n4Qr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8B h3 g5 a3 d5 c2 d6 a2 g6 Nf6 g7 Nc6 g8N Qc7 d8B Na7 d7 Rh4 Ba3 c1N Ne2 Bd6 Nbc3 Nd3 Qb1 Nb2 Qe4+ Kb8 b7 Be5 Rd1 a1N Rd5 Qd6 Bb6 Rg4 d8Q Rg2 Bc6 Ne8 Qf6 Bd7 Bd4 Nc8 Qf7 Qh6 Nf6 Ra4 Qg8 Rc4 Qg4 Be6 Rc5 Bd5 Bd7 Bc6 Rd5 Ncd6 Rc5 Nf7 Rd5 Na4 Rc5 Nb6 Rd5 Nc8 Rc5 Ka7 b6+ Ka6 b8Q Qf8 Ng3 Rc2 b7 Qh6 Qd6 Ka7 Ngh5 Qg5 Be2 Qh4 Re1 h1R Qf8 h2 Rb1 Rg1 Rb4 h1N b8Q+ Ka6 Qb5+ Ka7 Ng8 Nf2 Ne7 Ka8 Ng6 Qg5 Nh8 Nd3 Nf6 Nb2 Nh5 Bc7 Bg7 Be5 Nf6 Qh4 Qd6 Qh2 Qd1 Qh4 Qf1 Qg5 Kf2 f3 Rd5 Qh4+ Ke3 f2 Rc5 f4+ Kf3 Bb8 Rh5 Qg5 Qgg2 Qe5 Kg4 f3 Qg3 Qc7 Kf5 Qf4+ Kg6 Bc7 Kh7 Be5 Qe1 f1N Qg4 Ne3 Qf1 Rc5 Rd4 Ng2 Rh4 Nd3 Rd5 Rc4 Rc5 Nb2 Rd5 Bb8 Rdh5 Be5 Qbxc6+
2qq3N/1kq1Q2q/3N4/R2bn1pn/1q6/2BNQQb1/1RK1N1r1/2RRBq2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Kf2 h5 Bg2 a5 Ke1 f4 Bh3 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 e4 Kd7 h4 g5 b4 c5 d4 Kc7 Kd2 a4 h5 g3 f6 g2 b6+ Kb7 b5 a3 h6 f2 h7 f1Q e5 c4 d6 c3+ Kc2 a2 d7 f3 f7 f2 e6 Bb4 f8Q Be7 d5 Qc4 d6 f1Q Qd2 Qfe2 Qf3+ Nc6 Nh3 g1Q Nf4 Nh6 Bb2 Qcc5 Nd3 Qge3 Rc1 Qf8 d8Q Nf5 d7 Bd6 e7 Qh2 e8N Ng7 Qe7 Nh5 d8R+ Bc7 Rd5 Qb4 Rc5 Qee4 Nd6+ Ka8 Rd5 Ne5 b7+ Kb8 Qde2 Be6 Qe3 Qh3 Q2f3 Qd8 Rc5 Ka7 b8R Bd5 b6+ Ka6 b7 Qhc8 Rb5 Re8 h8N Qh7 Rc5 Rf8 Rd1 Rf4 Rc4 Rg4 Rc5 Kb6 Ra5+ Kc6 Na3 Rg1 Rac1 a1Q Nab5 Rg4 Nd4+ Kb6 Rba8 Rg2+ Ne2+ Kc6 Rb5 Qaa5 b8B Qb6 Ne4 Kb7 Rba5 Qc6 Ra2 Q6d7 R8a5 Bd6 Ba7 Q7c7 Bc5 Ng6 Ba1 Bg3 Rb2 Ne5 Nd2 Qb6 Bb4 Qc5 Nc4 Qcd6 Kb3 c2 Be1 Qc5 Rbb1 Qd4 Bac3 Qh4 Rb2 Qf4 Rca1 c1Q Rab1 Qd2 Rbc1 Qh4 Bd4 Qb4+ Kc2 Qh1 Bdc3 Qf1 Nd6+
q1k4b/2p5/2NQbQrR/bBr1r1RB/2b2Q1K/R2N4/N2Qn3/N1b3r1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 b3 f5 Qc2 f4 Ba3 h6 Be7 Nc6 Qd1 Nd4 Bg5 Nf5 gxf5 hxg5 Kf2 Kd7 h4 a5 e4 a4 d4 g6 h5 g4 d6 a3 f6 a2 h6 g5 h7 Bg7 e5 Bh6 e6+ Ke8 d7+ Kf8 e7+ Kf7 e8B+ Ke6 b6 Ra4 d5+ Kd6 f7 Bg7 f8Q+ Ne7 b4 Bh6 b5 Re4 b7 Re5 b8N Rg8 h8N Rg7 Bh5 Rg6 b6 Qe8 Qf5 Nc6 b7 Nd4 Bb5 Ne2 d8Q+ Bd7 Qdf6+ Be6 Nc6 Kd7 d6 Qa8 b8R g3+ Kf1 g4 Nc3 f2 Kg2 f1R Qd2 Rc1 Rg8 Bg5 Nf3 Bh6 Rg7+ Kc8 Nf7 Bg5 Ne1 f3+ Kf1 g2+ Kf2 g1R Nc2 Bh6 Qff4 Bg5 Rb1 a1B Rb3 Bb2 Na2 Bc3 Rh4 Ba5 Na1 Rcc5 Ra3 Bh6 Rh7 Bg7 Rh6 Bh8 Rh1 Reg5 Nfe5 g3+ Ke3 g2 Kf2 Rf5 Nd3 Rfe5 Rh3 Rh1 Rg3 g1B+ Ke1 Bh2+ Kf2 Rhc1 Rg5 Rg1 Qc4 Bf4 d7+ Kb7 Qe1 Bfd2 d8Q Bc1 Qd6 Kc8 Qd2 Bc3 Qe4 Ba5 Ke3 f2 Kf3 f1B Qef4 Bfh3 Kf2 Bc4 Kf3 Bhe6 Kf2 Rd1 Kg2 Rg1+ Kh2 Rf5 Kh3 Rfe5+ Kh4
1Q1N1Q1B/nn1b4/r2R1NQ1/8/q2q1k2/nQ1NqB2/Rq3bpK/N3B2n b - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 e4 Ke7 d4 Kd6 b4 c5 b6 h5 b5 f5 b7 a4 g6 f4 b6 a3 g7 c4 Bg2 f3 Kf1 h4 Nd2 h3 Qb3 f2 Ne2 a2 Bf3 c3 Bb2 c2 Nc1 h2 Kg2 f1N Nd3 Nh6 g8Q c1Q Qg6+ Be6 Rg1 h1N Bc3 Nc6 b8Q+ Qc7 b7 Nf5 Qbe8 Na7 b8Q Qb2 Ba5 Be7 Qf8 Rh6 Rd1 a1Q e5+ Kd7 d6 Qcc1 d5 Bh4 Bc3 Qa4 Bb4 Qcc3 Ra1 Qd4 Ra2 Bg5 Bc3 Be3 Ba5 Bf2 Bc3 Nh2 Rd1 Nf1 Ba5 Be1 Bc3 N1e3+ Kg1 g2 Bb4 Bh4 Kh2 Nc2 Ba5 Bf7 Bc3 Be8 Bb4 Ne7 Bc3 Nec8 e6+ Kd8 e7+ Kd7 Bb4 Na3 Bc3 Qe3 Bh8 Bf2+ Qh5 Bf7 e8N Rf6 Qg6 Be6 Qc2 Qed4 Nb3 Bf5 Na1 Be6 Qf5 Qe3 Qcb3 g3+ Kh3 g1Q Qg4 Rf5 Qg6 g2 Rd2 Qed4 Rd1 Qe1 Kh2 Rf6 Rd2 Qee3 Rd1 Kd8 d7 Bg4 Rd2 Ra6 Nf6+ Qe8 Qa8 Kc7 d8N Nd6 Rd1 Nb7 Rd2 N3b5 Rd1 Bd7 d6+ Kb6 Qb8 Qee3 Ne1 Kc5 Rd2 Qdb4 Nd3+ Kd4 Rd1 Na3 Rd2 Bc6 d7 Qc4 Nf7 Qd5 d8B Bd7 Ba5 Qc5 Nd8 Qd6+ Nf4+ Ke5 Rd3 Qc6 Be1 Qa4 Qc8 Qdb6 Rd6 Qbb4 Qb8 Q4d4 Qgf7 Kf5 Nd3 Kg5 Nb4 Kf5 Qg6+ Kf4 Nd3+
brNqk3/4Rnnp/4r2r/1n1N4/N1Bq1NQ1/rB3K2/2n2QQ1/4RQ1B b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 h4 Qd7 b3 Qh3 Bb2 Kd8 Bd4 Be7 Bf2 Bg5 hxg5 Ba6 g6 Bb7 Qc1 gxf2+ Kd1 Ke7 g4 Ke8 g5 Qc8 Kc2 Ba6 Qd1 Qd8 Kc1 Bc8 e4 c5 d4 a5 Kd2 f5 Ke2 c4 d6 a4 e5 a3 d5 a2 b6 c3 g7 c2 b7 c1N+ Kf3 Qe7 b4 Nf6 g8N Nh5 d7+ Kf7 d8Q Ra5 e6+ Kg6 d6 Re5 d7 Nf6 b5 Qg7 b6 Re2 e7 Kf7 Nh3 Na6 b8Q Nd3 b7 Re6 Nc3 Ne8 Qa7 Qd4 b8N Bb7+ Nc6 Ba8 Na4 Ng7 Nf6 Nc7 Qc8 Nb5 d8Q Rf8 Bg2 f1N Nd5 Ne3 Qf1 Nc2 Re1 a1R Qcb7 Rg8 Qdd7 Rb8 e8B+ Kf8 g6 Ra3 Nce7 Ne5+ Ke2 Nf7+ Be4 Ne3 Nc8 f3+ Kf2 f4 Bd3 Rf6 Qg4 Re6 Bc4 Nc2+ Re3 Rf6 Bc6 Re6 Kg1 f2+ Kg2 f3+ Kg3 Rd6 Nhf4 Rf6 Re7 Re6 Qg2 f1R Qba6 Rb1 Re1 f2+ Bb3 f1Q Qc5 Qfc4 Kf3 Qd2 Qcf2 Qcd4 Bb7 Na7 Qaf1 Nb5 Rc7 Ke8 Rd7 Nf5 g7 Rd1 g8B Ng7 Rc7 Qa5 Rd7 Qd8 Rc7 Rd2 Rd7 Rde2 Bc6 Rh6 Re7+ Kf8 Bb7 Ree6 Ndb6 Ref6 Q2h3 Na7 Kg2 Nd6 Bgc4 Nab5 Kg3 Rfg6 Bh1 Nf7 Nbd5 Ra6 Qhg2 Rae6 Rb7 Ke8 Kf3 Rh4 Rd7 Rh6 Re7+
Q1R1q2R/8/n2r1rB1/p2n1NB1/1k1qrq2/Q2B1Q1K/4RNB1/Q1q1rr2 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kd2 b5 axb5 f5 Nh3 f3 Ng1 f2 Nc3 g5 Ra4 f4 Nb1 Bd6 Ra1 Bb7 Bh3 Bf3 Bf1 Bg4 h3 f3 Ra3 Bf4+ gxf4 Bf5 Ra5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qe7 Ra3 Qg5 Ra1 Qd8 c4 Ke7 b4 Kd6 e4 a5 e5+ Kc7 g5 Kb6 e6 h5 c5+ Ka7 f5 d5 f6 g2 e7 d3 Ke3 h4 Kf4 d2 Kg4 d4 e8B h3 f7 d3 f8Q h2 c6 Kb6 g6 Rh7 c7 Rd7 c8B Qe7 g7 Nc6 Bg6 Na7 Ba6 Rb7 Ra2 Rc8 Kh3 Rc4 Ne2 g1Q Nd4 Nc6 Nf5 Qe8 Bg2 f1R Nc3 f2 Ne4 Nf6 g8Q Nb8 Qfg7 Rbc7 Qf3 d1R Re2 Rde1 Bg5 Nd5 Qa1 d2 Qf7 R7c6 Qg8 Kc7 b6+ Kd7 b7 d1R b5 Rf6 b6 Kc6 Qf7 Rb4 Bc4 Na6 Bd3 Rc4 b8Q Kb5 b7 Kb4 Qa8 Rd4 Neg3 Re4 b8R+ Nb6 Bb1 Rdd6 Rc8 Nd5 Bd3 Rd1 Ra2 Rfe1 Rd2 f1Q Re2 Qd4 Qe6 Qff2 Qg8 Qfe3 Qf7 Qf4 Qe6 Re5 Ne4 Rb1 Nf2 Re4 Qf7 Rf1 Qc7 Rbd1 Qc2 Rde1 Qca2 Rc1 Rg1 Rfd1 Rf1 Qd7 Rh8 Qe8 Rc2 Rb1 Rc8 Rdc1 Re1 Rd1 Ng4 h1Q+ Nh2 Qhg1 Re2 Qge3 Ng4 Rf1 Nf2 Rbe1 Rd8 Qd2 Rc8 Qc1 Qa3+
2RN2r1/B3K1B1/2q1R1b1/r1nqNQNn/Q2N2q1/1R4Bp/kr1Rbp2/8 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Bb4 g6 Ke8 Bg2 Be7 Bf3 Bg5 hxg5 exf3 Kf2 Kd7 d4 Kd6 b4 c5 e4 f5 e5+ Kd7 e6+ Kd6 b6 a5 g7 h5 e7 a4 e8R c4 g6 a3 b7 c3 b5 h4 b6 h3 Ra2 c2 Bb2 c1R Ne2 Ra5 Qa4 Ne7 g8Q Rg1 g7 Bd7 Qf7 Bc6 g8R Ng6 Nbc3 Nd7 b8B+ Qc7 b7 Nc5 Re3 Rb1 Rc8 Be8 Ba7 Qc6 Re1 Rg8 Ba1 Rb6 Rd2 a2 b8N Rb7 Nd7 Rb2 Qh7 Bf7 Ne5 Be8 Ng3 Bf7 Nce2 Be8 Rb3 Bf7 Kg1 f2+ Kh2 f1Q Qh5 f3 Ne4+ Ke7 Kg3 f4+ Kg4 f2 Kf5 f3 Kg5 Qh1 d6+ Ke6 d7 Kd5 d8B f1B Bc7 f2 Qf3 Be8 Qf5 Qf3 Bd6 Nf4+ Kf6 Nh5+ Ke7 Bg6 Ng5 Qg4 Rbb8 Nd7 Nef7+ Ne5 Rb7 Rb4 Bc7 Kc4 Rb6 Nd3 Bg3 Nc5 d5 Qa8 d6 Qc6 Bg7 a1Q d7 Qad4 d8N Qdd5 Nd4 Bd3 Re3 Be2 Re6 Kc3 Rd3+ Kb2 Ne5 Kb1 Rb7 Rb2 Rbb3 Qde4 Qc4 Ka2 Rd2 Qed5 Qa4+
1K4b1/2RN4/5rRQ/bBqn1R1N/7r/1B1rp3/qQnb2p1/k2BN1NR b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 fxg5 h6 g4 Nd7 g6 Nc5 g7 Na6 g5 Nb8 g6 Bf5 b3 Be6 Bb2 Bh3 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Ke3 Kd6 Kd4 a5 h4 c6 b6 g4 b4 g3 h5 g2 b7 e3 h6 a4 b5 e2 h7 e1B b6 e6 Na3 Ra7 Nc2 a3 Rc1 a2 Bb5 a1R Qf3 Qc7 Qa3+ Kd7 d6 e5+ Kc5 Ke6 d4 Nf6 g8B+ Qf7 g7 Bd2 d5+ Kf5 Ne1 e4 Rc3 Ke5 Rg3 e3 Rg6 Qc7 Bf7 Ra2 g8B Ra6 Be6 Qe7 Bg4 Qe6 Bd1 Be7 Bf7 Bd8 d7 Rb2 d6 Nd5 Bg8 Rb3 Bf7 Bc7 d8R Rd3 d7 Ke4 Rf8 Ke5 Kc4 c5 d8R Nc6 b8N Nd4 b7 Bca5 Rd7 Nc2 Rc7 Ke4 Bg8 Qf7 Nd7 Rf6 b8N Bb7 Ba4 Ba8 Kb5 Kd4 Bb3 c4 Ba4 Bc6+ Ka6 c3 Ka7 Bb5 Kb7 Bc4 Bb5 Ba2 Na6 Qe6 Nac5 Bb3 Kb8 Qa6 Bc6 Kc4 Ne4 Ba2 Qe7 Kb3 Ng3 Kb2 Qa3+ Ka1 Nh5 Qc4 Bb5 Qa4 Qd6 Bb3 Qb4 Qa2 Qc5 Nd4 Bf7 c2 Qa3 c1Q Bg8 Nc2 Be6 Rg8 h8Q Rg7 Qh6 Rh7 Qa4 Qca3 Bf7 Qc5 Qa3 Bc4 Be6 Re7 Bg8 Re4 Bf7 Rh4 Bg8 Re6 Rf5 Rf6 Kb7 Nf4 Kb8 Bb3 Bd5 Bc4 Ba8 Bf7 Bd5 Bg8 Bb3 Nd5 Qb2+
b2R1Bb1/K4QB1/3R3r/3kNNn1/1Bp5/2Q1r1pb/Rq3RnN/1Nn3q1 b - - 0 1 illegal: No possible last move, all moves rejected
4rB1n/K2n1Q1k/1Q6/pbp3R1/rqN1B1b1/2Q2Rb1/2N2qBB/R1R2n2 b - - 0 1 illegal: No possible last move
4B1n1/2Nbr2Q/K2Qn1R1/2k1Nq2/1b1p1q1B/1Qr1n3/nNpQNR2/6B1 b - - 0 1 illegal: No possible last move
R1Qq2N1/2q2q1r/6R1/RK1Q4/1n3b1n/RQ2p2p/1N1Q1B1B/N2nr1rk b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 g6 cxd5 Nh6 f5 Ng8 g4 Bd7 f6 Bg7 Bh3 Bf8 g5 Be6 Bf5 gxf5 h3 Bf7 Ra4 Bh5 Ra1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Ke2 Kd7 b4 Kd6 d4 c5 b6 a5 g6 e5 g5 h5 b5 a4 b7 e3 Kd3 f4 Kc4 e4 g7 h4 g6 a3 f7 f3 b6 e2 Qb3 e1R Nc3 h3 Nd1 f2 Kb5 f1Q+ Ne2 a2 Be3 c4 Nb2 c3 Bf2 Nf6 g8R e3 g7 Na6 b8R c2 b7 c1Q Rg1 Qc2 Rg6 Rh7 Rg5 Be7 f8Q Ng4 Rf5 Ra7 Ra8 Qcc7 b8B Nb4 Qf7 Bg5 Re5 Qh1 Nc1 Bf4 Qf5 Qe4 Qc8 Qg6 Rf5 Qf7 Rh5 Ke7 d6+ Kf6 d5 Rg1 d7 Kg6 Rh6+ Kf5 d6 Ke4 Rg6 Kf3 Re8 Kg2 g8N Kh1 Re5 Nh6 Rd5 Nf5 Rc5 Nd5 Rc3 Qdf6 d8Q Nh4 d7 Ra4 Ra5 Rd4 Ra8 Rdd1 Rd3 Qh8 Qg5 Rde1 d8Q Qhf6 Qd6 Qfd8 Qgf5 Nf6 Qfd5+ Ne4 Qdb4 Rg2 Qd2 Nc3+ Kb4 Nd1 Kb5 Qce7 Bd6 Qec7 Rc3 Bh6 Bh2 Bf4 Rb1 a1N Rd3 Nc2 Rba1 Nf5 R1a5 Nb4 Ne2 Qff6 Nd4 Nh4 Nc2 Qfe7 Na1 Qf7 Qa2 Qdf6 Rda3 Qfd8 Qdf5 Rg5 Qb3 Rgg1 Qfd5+
3b2qQ/K1N1kn1r/5R2/1r1Nnq1N/2p3R1/p5R1/NB4qB/Bn1Br2Q b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 c5 d4 f5 Kd2 h5 Kd3 a5 Kc4 f4 e4 h4 e5 f3 g5 h3 g6 f2 g7 h2 b6 a4 Kb5 a3 b7 c4 e6 Qf6 Kb6 Qh4 e7 Nf6 g8R Qf4 d6 Rh4 b5 Na6 b8Q+ Kf7 e8N Nc7 d5 Nh7 d7 Rh5 d8N+ Ke7 d6+ Kd7 Ne2 g1Q Nc6 g2 Ne7 Qh4 Rg4 Bh6 Ng3 Bf4 Nd5 Na6 Be2 Qh3 Bb2 Nb4 Nbc3 Nd3 Nec7 Ra7 Qh8 Bg5 Na2 Bd8 Qe1 Re5 Nh5 Ng5 Bd1 Nf7 Qe4 Qf1 Rg1 h1R Qeh7 Ra5 Kb7 Re2 b6 Rb5 Ka7 Ne5 b7 Re1 b8B Qe2 Rf1 g1Q Rc1 Qef3 Rc3 Qf5 Rcg3 Qgg2 Qh6 Qh4 Qc1 Qhg5 Qa1 Qg8 Qb1 Kc6 d7 Kd6 Ba1 Bh4 d8B Rh3 Rg1 f1N Bf6 Nd2 Rf1 Bg5 Bg7 Bd8 Qe4 Nb1 Qf3 Qe2 Qh1 Qg2 Rf2 Ng6 Bgb2 Nge5 Nhf6 Rh7 Nh5 Kd7 Rff3 Qe6 Rf6 Qf5 Ne3 Ke7 Ned5+ Kf8 Rd3 Nf3 Na6 Ke8 Bh2 N3e5 Rf3 Kf8 Rfg3 Ke8 Nac7+ Kf8 Ne3 Ke7 Ned5+
2n1r2B/1QqQ1NN1/2N3nK/1RRR2r1/2nQ4/1k2Bq1Q/p3N1qp/1b5n b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Bb4 g6 Ke8 Bg2 Be7 Bf3 Bg5 hxg5 exf3 Kf2 Kd7 d4 Kd6 b4 c5 e4 f5 e5+ Kd7 e6+ Kd6 b6 a5 g7 h5 e7 a4 e8N+ Kd7 d6 Kc6 g6 Kd5 b7 Kc4 b5 a3 d5 h4 b6 h3 d7 a2 d6 h2 Nc3 Ra3 Rb1 Ra5 Nge2 Qf6 d8R Nd7 b8B Nf8 b7 Ne7 g8Q+ Qf7 g7 Nfg6 d7 Qd5 Kf1 f2 Qh7 Qf3 Be5 Rf8 b8Q Rg8 Nf6 Re8 g8N Ba6 Qh5 Nc8 Be3 Bb7 Rc1 Be4 Qb7 Bb1 Qh3 Rb5 Qd3+ Kb3 Qd4 c4 Ncd5 c3 Nh5 c2 Nb4 Ra5 Nh6 Rb5 Re1 c1Q Bh8 Qc7 Nf7 Rbe5 Rc1 Rc5 Ng1 Qg2+ Ke2 f3+ Kd2 f1Q+ Ne2 f4 Ng7 Rg5 Rc5 f2 Rg1 Qf3 Rb5 Q1g2 Rc1 Qfg3 Rc4 f3 Rc2 f1N+ Kd3 Ne5+ Ke4 Q3f2 Kf4 Ng3 Rcc5 Nh1 Qh4 Qff1 Qh3 f2 Nh5 Rgg8 Ng7 Qf3+ Kg5 Ng6 Kh6 Q1g2 Re5 f1N Red5 Nd6 Rc8 Nd2 d8Q N2c4 Qe7 Nf8 Qed7 Ng6 Ra8 Nc8 Raa5 Re5 Rbc5 Rge8 Rab5 Rg5 Nc6+
bN2Q1nr/K2N2b1/1R3Q2/Rbp2k2/4NB2/3Q1Q2/BRqp1R1r/3bq2r b - - 0 1 legal: proof: e4 e5 b4 g5 d4 exd4 c4 f5 exf5 b5 cxb5 Kf7 h4 gxh4 a4 Bb7 a5 Bd5 b6 Na6 b5 Nc5 a6 Ke8 Rh2 Bb7 Rh3 Bc8 Rh1 Nb7 axb7 Ba3 Bd3 Bc5 Bf1 Bf8 Kd2 Kf7 Kd3 Kf6 Kc4 a5 b8N h5 g4 c5 f4 h3 g5+ Kg7 g6 Kf6 g7 h4 b7 d3 b6 d5+ Kb5 d4 Nd2 a4 Ne4+ Ke7 f6+ Ke6 f7 a3 f5+ Ke5 f6 d2 Nf3+ Ke6 Bc4+ Qd5 Rh2 d3 Ba2 Ra7 Rf2 h2 Ne5 h1B Ned7 h3 Qf1 d1B Bf4 d2 Qd3 Qb3+ Kc6 Bd6 f8Q h2 f7 Be5 Qfd6+ Kf5 f8Q+ Bf6 Qf3 Bg2 Qdd3 h1R Qe7 Qc2 Qed6 Nh6 g8Q Bg7 Qe8 Ng8 Kb5 Ra4 Qc6 Rd4 Ka6 Rd6 Ka7 Rdh6 Na6 R6h3 b8R R3h2 b7 Bf1 Ra8 Bfe2 b8R Bb7 Rb1 Bf1 Rb2 Bfe2 Bc4 a2 Bf7 a1Q Ba2 Qab1 Qcd6 Bc6 R8b6 Bb5 Nab8 Bf1 Kb7 Bg2 Ra5 Qa1 Rb3 Qe5 Rb2 Qe7 Ka7 Qh4 Rf1 Qe1 Rf2 Qb3 Qg3 Qc2 Ng5+ Be4 Qge3 Kg4 Qf6 Bec6 Ne4 Ba8 Qfd4 Kf5 Qf3 Qc3 Qd6 Qc2 Qf6+
K2Bq3/R1N4n/1Q1b3q/p1qnnNb1/B2Q1rBR/1N3N1p/1RB5/kn6 b - - 0 1 legal: proof: f4 c5 g4 e5 d4 exf4 a4 cxd4 Be3 b5 axb5 f5 Ra4 a6 Bc1 f3 Ra1 f4 h3 g5 Ra2 a5 Ra4 Bb7 Ra2 Be4 Ra1 Bf5 gxf5 g4 Qd2 g3 Qd1 Ra6 Na3 Rg6 Nb1 Rg4 hxg4 Be7 Bd2 Ba3 Bc1 Bf8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 b4 h5 e4 g2 g5 d6 f6 h4 g6 f2 f7 d3 b6 d5+ Kb5 Kd4 c4 d2 e5 f3 c5 Bd6 f8R Qe8+ c6 Nf6 g7 Qf7 g8N Qe8 e6 Bc7 b7 Rh7 e7 Qg6 e8B Qh6 Rf7 Bd6 Kb6 Nbd7+ Ka7 Ne5 Bd3 f1N b8N f2 b5 Ne3 c7 f1Q c8B Qf5 b6 h3 b7 Qe6 Ba4 Qe8 Rh2 Rh8 Re7 Nh7 Bdc2 Kc4 Ba3 d4 Ka8 d3 Bg4 Nd5 Nf3 g1B Rc7+ Bgc5 Ne7 Rf8 Nf5 Rf7 Qg1 d1N Nbd2+ Kc3 Nb3 d2 Bb4+ Kb2 Qd4+ N1c3 Re2 Qb5 Na6 d1Q b8Q Qe8 Ra7 Qg1 Nc7 Be7 Re4 Bcd6 Rb1+ Ka2 Bc5 Bg5 Bb6 Qc1 Rf4 Qa3 Re4 Qc5 Rb2+ Ka3 Na6 Nb1 Bd8 Rf8 Qb6 Rf7 Nbd2 Rf6 Nc7 Rf8 Rb4 Ka2 Rb2+ Ka1 Bh5 Qeg6 Rh4 Qe8 Bg4 Rf7 Ne7 Rf4 Nf5 Bf8 Qc4 Bfe7 Qd4 Bd6 Nb3#
QbK2k1Q/1n1BR1bp/2pB1q2/4Q1R1/1Q6/R2bNR2/nN1B2n1/1b4rq b - - 0 1 illegal: No possible last move
3NqR1K/1NQ3pb/B2N2rp/QRn2bq1/Q2r4/2Q5/1R2Nk2/1B2q1bb b - - 0 1 illegal: No proof kernel
Q1K4Q/3R1p1N/5BBk/1NR5/1rqN1R2/pn1Rb1bn/Qq3Q2/nn4q1 b - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 a4 cxd4 Bd2 h5 Be3 b5 axb5 h4 Bc1 a6 h3 g5 Qd2 a5 Qd3 Rh5 Qd1 Bb7 Qd3 Bf3 gxh5 g4 Qd2 g3 Qd1 Bg4 hxg4 Ra6 Qd3 Rh6 Qd1 Rh8 Kd2 d5 Kd3 f3 c4 g2 b4 a4 e4 h3 c5 a3 g5 f2 h6 h2 c6 Qb6 c7 Qd6 c8R+ Ke7 b6 Rh7 g6 Kf6 e5+ Kf5 b5 Rh8 e6 Bg7 h7 Qd8 b7 Nh6 b6 Qe8 e7 Kf6 Qe1 Qc6 e8Q Nf5 Nf3 g1B Bb2 Na6 b8Q Ne3 b7 Qb6 Qa8 Nc2 b8R Qb4 Bc3 Qb2 Rb3 Rf8 Ra2 Na1 h8Q Kf5 Qd2 Be5 g7 Kg6 g8N Bg3 Qee1 Rd8 Rc7 Rb8 Nf6 Rb4 Nh7 Kh5 Be2 f1Q Rc5 Be3 Qf2 Kh6 Rg1 Qfc1 Rf1 h1Q Bd1 Qg1 Bc2 Nb8 Rd1 Nc6 Qde2 Na5 Rd2 Ra4 Rb7 Rb4 Rd7 Qb3 Rd1 Qa4 Bb2 N5b3 Nc3 Qa6+ Nb5 Qb1 Bc3 Qb2 Qd2 Qc6 Ke2 Qc7 Bg6 Qf4 Kd3 Qh4 Ne5 Qf4 Nc6 Qh4 Ke2 d3+ Kf3 Qc4 Bf6 d4 Qc2 d2 Ke4 d3+ Ncd4 Bg5 Rf1 d1N Kf5 d2 Qb1 B3h4 Ke5 Be3 Kd6 Nc3 Kc7 d1N Kc8 Bg3 Qbc2 Nb1 Qce2 Qbc1 Rd2 Q1c2 Rd3 Qb2 Qfe1 Nf2 Qc2 Qbc3 Qa2 Nh3 Rf4 Qb2 Qf2
3qQ2b/2Q1bQ2/RN2bnr1/QbR2Bk1/1KN1p1b1/R5nb/5pBN/N7 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 f5 Qb6 Qe2 Qc7 Qd1 Qd8 h4 Qb6 g4 Bg7 Bf4 gxf4 g5 Bf8 g6 Qd8 Bh3 a5 Nc3 Ra7 Bf1 Rc7 Nb1 Rc3 Qc1 Rg3 Qd1 Rg5 hxg5 Ba6 Ra2 Bb7 Ra1 Bc8 Kd2 h5 c4 e5 b4 d5 b6 h4 f7+ Ke7 c5 f3 g7 d3 Kc3 d2 c6 e4 g6 Kf6 c7 h3 b7 h2 b5 a4 b6 a3 Bg2 a2 Na3 f2 Qe1 d1B Nc4 Rh5 Nf3 Bc5 f8R+ Ke7 f6+ Ke6 f7 Ne7 g8Q Kf6 g7 Nd7 b8Q Kg6 b7 Be3 Kb4 d4 Qa8 d3 b8Q Ba6 c8N d2 N8b6 Rg5 Qc7 Bb3 Qac6+ Nf6 Qe8 d1B Rg1 h1B Nh2 Qa8 Qc3 Bg4 Rgc1 Qd8 Q3e5 Ba4 Qa5 Bac8 Rc3 Kh5 Ra3 Nf5 Rc1 a1B Qh7+ Nh6 g8B Bce6 Qhf5 Bc6 Bh7 Bb5 Qff4 Rg7 Bf5 Rg6 Rg8 Bed4 f8N Bab2 Qf3 Kg5 Nfd7 Be5 Rf8 Bd6+ Nc5 Be7 Rc2 Nd7 Qb3 Bh8 Qa2 Nf6 Rc1 Nh5 Rf6 Ng8 Rc2 Ng3 Rcc3 Bf7 Rd6 Nf6 Nb3 Be6 Na1 Kh6 Ne5 Bh3 Rc5 Kg5 Nec4 Bg4 Na4 Bh3 Ra6 Bg4 Nab6 Bh3 Bf1 Bf3 Bg2 Bfg4 Nb2 Bc8 Qaf7 Be6 N2c4
R1Bn2nK/1pNR2Bb/3p2N1/BQ1BQ3/2Q2b2/3nk2q/1N2b1Q1/2nrb3 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 fxg5 a5 exf5 Nc6 h4 Nd4 b4 axb4 g6 Ra3 g7 Rh3 g5 Nc6 d4 Rg3 g6 Rg5 hxg5 cxd4 Bh3 Nb8 Bg2 Nf6 Bf1 Ng8 Kf2 h5 Kg3 e5 Kh4 Ke7 a4 Kd6 c4 Kc5 f6 d6 a5 e4 a6 e3 f7 d3 a7 Kd4 a8N d2 c5 e2 c6 b3 c7 b2 Bg2 Nd7 Qf1 d1N Nf3+ Ke4 Na3 b1B Nc4 Bd3 Nfe5+ Kd4 Bd2 Ne3 Bd5 Bb1 Ba5 Nc5 Nb2 Bg4 c8B Ne6 Nc7 Qd7 Qe1 Be7 f8B Nd8 Qb4+ Nc4 Qb5 Rh6 Rf1 Bc2 Rf7 Nd2 Ra3 Bf6 Re7 Qe6 Rd7 Nb3 Ra2 Ke3 Ra3 Ne7 g8Q Bf3 g7 Bh7 Ra2 Nc1 Qh8 Ng8 Ng6 Be5 Ra4 Bf4 Ra2 Nf6 g8Q Bg4 Qf7 Ng8 Qhf6 Qf5 Bg7 Qd3 Qc3 Bf3 Qcc4 Qb3 Qf6 e1B+ Kh3 h4 Qe5+ Be4 Kg4 h3 Ra3 h2 Ra1 Rh3 Ra2 Rf3 Kh5 h1N Ra1 Rf1 Ra3 Ne7 Kh6 Nf2 Ra4 Nfd3 Ra2 Bg8 Ra1 Bf7 Kh7 Ng8 Kh8 Be8 Bb4 Bf7 Ra8 Be6 Ba5 Bg4 Nh4 Bf3 g6 Qc3 Bf8 Be2 g7 Beg3 Ng6 Rd1 Qe6 Be1 Qe5 Nh6 g8Q Qb3 Qge6 Ng8 Bg7 Qc3 Qg5 Qa3 Qg2 Qb3 Ne5 Bh7 Ng6+ Ne5 Qc2 Kd4 Ra6 Qh3 Qcc4+ Ke3 Qf5 Ned3 Ra8 Bh5 Qf6 Be2 Qe5+
6Nq/B2qQ3/2NRp2Q/3r1B2/p1Q1Kb1q/BbN1Q1R1/1r1q2r1/1Nkb4 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 axb5 Nh6 f5 Na6 d3 Nc7 d4 cxd4 f6 Nf5 gxf5 g4 Bg2 Ne6 Bf1 Ng5 hxg5 Qb6 Bd2 Qc7 Bc1 Qd8 Ke2 Kf7 c4 a5 b4 h5 b6 d5 b7 a4 b8N g3 c5 e3 Kd3 h4 b5 g2 b6 e2 c6 e1Q c7 h3 b7 h2 Ra3 Qd7 Rb3 Ra5 Bf4 Bh6 Bd6 Qh4 Ne2 g1R Qd2 Rg2 Ba3 e6 Rg1 h1Q Nc6 Rb5 b8B Rd8 Rb2 Bb7 c8Q Q1h2 Rc2 Rb2 Ba7 Qe5 Qe3 Ba6+ Kd2 d3 Qc7 d4 g6+ Ke8 g7 Kf7 g8N Bc4 Qc8 Bf4 Qa6 Bb3 Qc4 Rg3 Bh3 Rg2 Rf1 Qb8 Rf3 Qe5 Rg3 Qb8 Ke1 d2+ Kf1 d1B Rd2 d3 Nec3 Rg1+ Kf2 Qbc8 Re2 d2 Kf3 Rg2 Bg4 Qe8 Ke4 Rd5 Rf2 Qcd7 Rff3 Be2 Bh3 d1Q Rf2 Bg4 Rd2 Qe1 Rd3 Qd2 Rd4 Bgd1 Bg4 Rc5 Rd6 Rd5 Bh3 Qf8 Bg4 Qfh6 Bh3 Qh8 Bg4 Kf8 f7 Kg7 f6+ Kg6 f8Q Kg5 f7 Re2 Rg1 Rg2 Bf5 Qh1 Bg6 Q1h4 Qh6+ Kg4 Qec5 Kg3 f8Q Kg4 Qe7 Kg3 Nd4 Kf2 Bf5 Rg7 Bb6 Bh5 Rg5 Ke1 Ba7 Bg4 Nce2 Kd1 Nec3+ Kc1 Nc6 Bgd1 Qe3 Rg6 Rg3 Rg4 Rh3 Rg2 Rg3
KRNQ1b2/4N2p/1bR3Nk/n2b4/2BpQ3/1n2bQ1n/2q1NQqq/B2B4 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 h3 a5 Be3 g5 Bd2 Nf6 Bc1 Rg8 h4 Ra6 Nc3 Rc6 Nb1 Rc5 Qd2 Rd5 Qd1 Rf5 gxf5 g4 Rh2 Rg5 hxg5 Ba3 Rh1 Bf8 Kd2 Kf7 Kd3 Kg7 Kc4 g3 e4 d6 b4 f2 e5 a4 b6 g2 Kb5 d5 c4 a3 g6 f3 e6 a2 e7 d3 e8Q d2 c5 d4 c6 Qc7 b7 Qe7 Kb6 Bd7 Ka7 Qd6 c7 Be6 c8N Qf4 b5 Qg4 b6 Bd6 Rh6 Qh5 Be2 f1Q Nc3 f2 Nd5 Bc7 Ka8 Qh1 Rb1 a1B Nde7 Ba2 Bb2 Nc6 b8Q Na5 b7 Bb6 Qf4 Ne4 b8Q Ng5 Bh5 Qh2 Qdf3 d1Q Ne2 g1B Qf7+ Kh8 f6 Qc2 Q4e4 Qfg2 Qf8+ Bg8 f7 f1N Qbf4 Be3 Qd8 Kg7 f8N Ba2 Q4g3 Nh3 Qgf2 Nd2 Bc3 Ba7 Rb8 Bb2 Bg4 Ba3 Ba1 Ndb3 Bh5 Qf4 Bg4 Bb6 Bh5 Kf6 g7+ Kg5 g8B Qfh2 Rc6 Bac5 Nfg6 Kh6 Bc4 Bb4 Nd5 Bf8 Nde7 Nd2 Bd3 Bd5 Bc4 Ndb3 Ng1 Bf7 Qf6 Be8 Bd1 Bf7 Ne2 Bd5 Q6f3
1R2R2b/QbQ3Bp/5qBb/1NN5/2BB1bK1/p1R1Q2n/b2n3Q/k1b1n3 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Ng8 f6 Ba6 Ra4 Bb7 Ra1 Bc8 h3 a5 Be2 g5 Bc4 Nh6 Bf1 Rg8 Be3 Ra6 Bc1 Rd6 h4 Rd5 Nf3 Rf5 gxf5 g4 Ng1 Rg5 hxg5 Ba6 Nf3 Bb7 Ng1 Bc8 Ke2 Kf7 b4 d5 c4 e5 b6 e3 c5 e4 b5 g3 b7 a4 b6 g2 c6 d3+ Ke1 d4 c7 a3 Rh3 e2 Kf2 e3+ Kf3 e1B Nd2 e2 Qc2 Nc6 b8Q Ng4 b7 Nb4 Qb1 Bg3 Qa7 e1B b8Q Bh6 Bb2 Nc2 Ne4 d2 Ne2 d1B Qc1 g1B Nc5 d3 Bd4 d2 Rb1 Nf2 Rb3 Ba6 c8Q+ Bb7+ Qc6 Ne4 Kg4 Bc7 Rhc3 Bf4 Qcc7+ Qe7 Bg2 Bge3 Rb4 Beg3 Bf3 Ne1 Rb1 Nd6 Be4 Bb3 Rb2 d1N Bc2 Bef2 Qe3 Ba2 Rb6 Nc4 Re6 Qd7 Re8 Qe7 Bb1 Nd2 Bd3 Be5 Bb1 Bf8 Be4 Bgf4 g6+ Kg8 f7+ Kg7 Bb1 Kf6 g7 Bh4 g8B B8h6 f8B Bh4g5 Bc4 Nf2+ Kh5 Nh3 Kg4 Qd6 Rd3 Bh4 Nc3 Bh4g5 Nb5 Qa6 Ba1 Bb2 Rc3 Bc1 Bc2 Bg7 B2d3 Bh8 Bb2 Bh6 Bc2 Bfg5 Qh2 Qb6 Qbc7 Bf4 Be4 Qd6 Rb8 Ke5 f6 Ng2 f7 Ne1 Qca5 Qb6 Bg7+ Qf6 f8R Bg3 Be2 Bgf4 Bg6+ Kd5 Rd3+ Kc4 Qc7 Kb4 Rfe8 Kc4 Ne4+ Kb4 Bc3+ Kb3 Nc5+ Kc2 Bd4 Kb1 Rc3+ Ka1 Bc4
R1B5/1b5r/b1npR1Qp/1Rp2qN1/4NBBN/1Kn1q3/BRrkn3/7Q b - - 0 1 legal: proof: c4 g5 e4 b5 cxb5 f5 exf5 Na6 a4 Nb4 h4 gxh4 d4 c6 d5 Nc2+ Kd2 Bg7 d6 Bd4 a5 Bb6 a6 Bc7 dxc7 Bxa6 Na3 Bb7 Nb1 Bc8 Kc3 Kf7 b4 Kf6 f4 a5 g4 e5 b6 d6 b7 e4 b8R c5 b5 h6 g5+ Kf7 f6 Ke6 b6 Kf5 g6 a4 b7 e3 g7 Ke4 f5 h3 f7 h2 f8N a3 f6 a2 f7 e2 Nf3 e1Q+ Kb3 Ne7 g8B Na3 Nbd2+ Ke3 Ne4+ Qd2 Nfg5 Rh7 Be2 Qd7 Re1 h1B Ng6 Nb1 f8Q Nc3 Qe8 Nc6 Nh4 Qf5 Qg6 Ra4 Be6 Rc4 Bg4+ Kd3 Qf3+ Qe3 Ra8 Bg2 b8R Ba6 c8B Bh1 Rb1 a1N+ Ka3 Nb3 Rb5 Bg2 Rb2 Nbd4 Qh3 Nde2 Qh1 Nd1 Bd5 Rc2 Ba2 Ndc3 Kb3 Nb8 Nd2 Bgb7 Nde4 Nc6 Rf1 Qd7 Rf6 Qf5 Re6 Qef2 Bf4 Qe3 Ng3 Kd2 N3e4+
B1N2r2/4pN2/2R2r1R/4QqN1/2B1Q1kN/3n2p1/2B2pq1/qQnK1bBb b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 e3 b5 axb5 dxe3 gxh5 g5 f4 g4 Qf3 Bh6 Qd1 Bg5 fxg5 Rh6 Ra5 Rh7 Ra1 Rh8 b4 d5 c4 Kd7 h4 Ke6 g6 Kf5 c5 a5 g7 f6 b6 e2 b7 a4 h6 d4 c6 g3 h7 d3 h5 a3 c7 a2 h6 Ra3 b5 Ra5 b6 Nc6 b8N Qe8 b7 Kg4 Nf3 f5 Ng5 f4 Be3 f3 Qa4+ Nd4 Nd7 Qh5 b8Q Qh4 Bg2 Rf5 Bg1 Qh2 Nb6 Nf6 g8B Bb7 c8B Bc6 Bc4 Nb3 Nd2 Ne4 Rc1 Rf8 h8Q a1Q h7 Nec5 Qhe5 Ba8 B8a6 R5f6 h8N Qh7 Qc6 Qf5 Nhf7 Qb2 Rc2 Nc1 Nc8 Qa1 Qb1 Bb7 Nde4 f2+ Kd2 Ba8 Rh6 Bb7 Ned6 Ba8 Ke3 d2 Bb3 d1B Kd2 Bb7 Bac4 N5d3 Qa4 Ba6 Ba8 Bb7 Qb4 Bg2 Ba4 Bf1 Rc3 Bb3 Qb7 Ba2 Bc2 Bb3 Qc6 Ba4 Qcb7 Bc6 Q7b4 Bh1 Qb7 Qe4 Nf5 Qg2 Nh4 Qa5 Ba2 Qad5 Rc6 Qde4 Bc4 Qf5 Ba4 e1Q+ Kc2 Qb4 Kd1 Qa5 Bc2 Qa1 Q7b4 Qe6 Qbe1 Qf5 Q1e4+
3nBQ2/1N4qN/3K4/rB4R1/p4RQb/kQ2qpn1/3p1BBN/N2b1b1q b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d3 c5 d4 cxd4 h3 g5 gxf5 a5 h4 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 d5 c4 h5 c5 d3 g6 a4 b6 g3 b7 d4 g7 g2 c6 h4 f6 h3 f7 d2 c7 h2 Nf3 g1Q Bb5 d3 Na3 Be7 f8N Qg4 Rg1 h1B Nc2+ Kb3 Nh2 Bg2 Nh7 Be6 c8N Qg3 Nd6 Qh3 Qg4 d1Q Be3 d2 Bf2 Nh6 g8B Qe2 Raf1 Qh4 Na1+ Ka2 b4 Bc4 Bd5 Qf8 Ke6 Nf5 e5 Nc6 b8Q Qe1 Nb7 Qg7 Qf8 Nd8+ Kd7 Qe4 e6 Qe3 Bf3 Bg5+ e7 Ng3 Kd6 Ka3 e8B Bb3 Bfc6 Bh3 Bg2 Bc2 Bc4 Bd1 b5 Qh5 b6 Bh4 Bcb5 Rg8 Na5 Rh8 b7 Rg8 b8Q f3 Nb7 Rh8 Re1 Rg8 Bh1 Bf1 Bg2 Bc2 Rc1 Bd1 Rc4 Rh8 Rf4 Rg8 Qf7 Rf8 Qe7 Rf5 Qf8 Re5 Ba6 Ra5 Bab5 Qhh6+ Qg6 Qe1 Qc7 Bd3 Qc2 Bf1 Bh1 Nh5 Ng4 Qe3 Qe6 Qhg5 Nh2 Qg2 Qef5 Bd3 Qc4 Qf1 Rg5 Ng3 Bg2 Qh1 Qg4 Bf1 Qb3+
5Q2/p4r1B/2p1bq2/BQN2NnK/R1q3RB/1b1Nq2n/2k1Qp2/3NBb2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 h3 g5 Ra2 f4 Ra5 Na6 Ra1 Bh6 h4 Rb8 Qc2 Rb6 Qa4 Rf6 Qd1 Rf5 gxf5 g4 Rh2 Be6 Rh1 Bg5 hxg5 Bc8 Kf2 Ke7 d4 Kd6 e4 h5 b4 c3 f6 h4 b6 h3 g6 c2 f7 h2 f8Q+ Kc6 b7 Kb6 b8N Qd7 e5 Nc5 b5 Na4 d5 Ka5 b6 Rh7 e6 Bb7 d6 Kb4 e7 Kb3 e8Q Qc8 d7 Nh6 d8B Ba6 g7 Qf5 g8N Bc4 b7 Rf7 Na6 Nb2 b8B Qe6 Bh4 Qf6 Nc3 Be6 Bd2 c6 Qb1 c1Q Nd1 Qcc3 Nh3 Qc4 Rg1 h1B Ba5 Bg2 Ne7 g3+ Ke1 Bh1 Bd3 g2 Ra4 f2+ Ke2 f1B+ Kf2 f3 Kg3 Qfc3 Bf4 Qf6 Bh7 f2 Qf5 Nd3 Bfd2 Kc2 Bdb4 Kb1 Qe5 Kc2 Nf5 Nf4 Kf3 Re7 Qb5 Nf7 Kg4 Ng5 Qh5 Rf7 Nc5 Bd3 Re1 Bf1 Re3 g1Q+ Rg3 Qg2 Be1 Qge4 Rg1 Qe3 Rg2 Ne2+ Nf4 Ng1 Rg3 Be4 Nfd3 N1h3 Rg2 Rb7 Qhe8 Rf7 Kh5 B4d5 Rg3 Qcd4 Rg1 Bb3 Rg4 Qc4 Qee7 Bd7 Qe4 Bc8 Qf3 Be6 Qe2+
RB6/p5N1/pb1Q1NK1/kB1pb3/nR2R3/2qq2NQ/1nn2R2/2r1b1QQ b - - 0 1 legal: proof: d4 c5 f4 cxd4 g4 f5 a4 Nf6 e4 Qb6 exf5 Qd8 a5 Ng8 a6 bxa6 f6 Kf7 Nh3 Ke6 f7 Kd5 f5 Kd6 Ng1 Kc6 h3 g5 Be3 d6 Bc1 Kd7 f6 Nc6 Ra5 Kc7 Ra1 Bf5 Qd3 Kd7 gxf5 g4 Qe2 g3 Qd1 Rb8 Na3 Rb3 Nb1 Rf3 Ra3 Rf4 Ra1 Rg4 hxg4 Qb6 Bh6 Qb8 Bc1 Qd8 Ke2 Kc7 Kd3 Kb6 Ke4 e5 b4 h5 c4 h4 g5 d3 c5+ Kb5 g6 h3 g7 g2 Rh2 Rh4+ Bf4 Qb6 Nd2 Be7 f8Q Na5 f7 Qb8 f6 d5+ Kf5 e4 c6 e3 c7 e2 c8Q e1B Kg6 Bd6 Ne2 g1B Rf2 h2 Ra4 h1N Ng3 Nb3 Qh3 Qa8 Nde4 Nh6 g8Q Be5 Qd6 Qc6 f8N Nc5 f7 Nf5 Nf6 Ne3 Ne6 Nc2 f8R Kb6 b5 d2 Rb4 Na4 Re8 Ka5 b6 Qc3 b7 Rh8 Qdh5 d1Q b8R Qdd3+ Re4 Rh7 Rb4 Rc7 Ng7 Rc6 Ra8 Rc5 Re2 Nf2 Qh6 Nd1 Rf2 Rc8 Qh1 Ndb2 Q6h3 Qdd4 Bb5 Qdd3 Rf3 Bgd4 Rf2 Rc5 Qgh7 Rc4 Qg1 Bb6 Qhh1 Rc6 Q7h3 Qb3 Rc8 B5c3 Qhd7 Ne3 Q6e6 Rc7 Bd6 Be5 Ra8 Rc1 Bb8 Nc2 Qeh3 Qbc3 Qd6
7r/NbBQ1p1r/3pNRpN/2N2rBR/3r4/2qn2r1/2R1Rn1k/1Q1B1K2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h5 gxh5 a5 b3 a4 b4 Bd6 Nc3 Bc7 Nb1 Ba5 bxa5 Kf8 Bg2 Ke7 Bf1 Ke8 c4 Ke7 h4 Ke6 e4 Ke5 h6 d3 a6 g6 h7 a3 b6 d6 h5 a2 c5 f3 c6 Nd7 c7 Ngf6 a7 Rb8 a8N Qf8 b7 Ne8 h6 Ng7 Nc3 Qd8 Be2 d2+ Kf1 Kf4 e5 Kg3 e6 f2 e7 Nf8 e8Q Rg8 h8R Nge6 h7 Qe7 Na4 Ng5 Qd7 Qe4 Rh5 Qd3 Nf3 Qf5 Nh4 Qe6 Nc5 Nh3 Nf5+ Kh2 Nh6 Qd5 Qb3 Qf3 Bd1 Rg7 Qb1 Ne6 Re8 Qf6 h8R Nf4 Re2 Rh7 Rhe8 Qg7 R8e6 Nd3 Bb2 Qh8 Bf6 Qg7 Bh4 Qc3 Nb6 Ra8 b8B Bb7 c8N Ra3 Bc7 Ra8 Na7 Rah8 Bc2 d1R+ Re1 Rc8 Nd5 Rch8 Nf4 Rd2 Rf6 Rd1 Ke2 f1R Nfe6 Rf5 Bb3 Nhf2 Kf1 Nc1 Bc2 Rd4 Bd1 Ncd3 Re2 Ba6 Qb6 Bb7 Rc1 a1R Rcc2 Ra5 Qb1 Rf3 Na6 Raf5 Nac5 Rg3 Bg5+
kN4R1/2r1R2N/1R1K3n/1bB4N/nB3n1p/bB1bp1p1/n6q/1R2NQQ1 b - - 0 1 legal: proof: g4 b5 d4 f5 c4 fxg4 a4 a5 axb5 d5 cxd5 Ba6 e4 Nf6 d6 Nbd7 h3 gxh3 e5 Nb8 d5 Bc8 d7+ Kf7 Nd2 Ra6 Nb1 Rd6 exd6 Ng8 Kd2 h5 Ke3 g5 Kd4 e5+ Kc5 c6 b4 g4 f4 g3 f5 h2 b6 e4 b5 h4 b7 e3 b6 a4 f6 a3 Bc4 a2 Nd2 Rh5 Nh3 Rh7 Qf1 Nh6 Nf4 Rg7 Rb1 a1N Nh5 Nc2 Nf3 Nd4 Ba3 Ne2 Bb3 Nf4 Bb4 Qc7 d8Q Bd7 Rg1 h1B Ne1 Be4 Ra1 Bg6 Ra7 Bd3 Qc8 Be8 Qch3 Qd7 Qh2 Qh3 Rh1 Bd7 Qhg1 Ke8 f7+ Kd8 Ra5 Be8 Ra7 Be7 f8N Qh2 Nh7 Rf7 Ng7 Bf8 Nh5 Re7 d7 Na6+ Kd6 c5 b8B c4 b7 Nc5 Ra6 c3 Rb6 c2 Ba7 c1N b8N Nce6 Rb5 Na2 Bac5 Qc2 Rb6 Qh2 Ke5 Kc7 d8R Beb5 Re8 Rd7 Re7 Kc8 d6 Rc7 Rc6 Kb7 d7 Ka8 d8R Qg2 Kd6 Qh2 Ba7 Nc5 Rb6 Na4 Rc8 Bg7 Rg8 Bh8 Rb7 Bb2 Bac5 Ba3 Rb6 Qg2 Rh2 Qh1 Rb2 Qh2 Rb1
2k1BN2/nN3q2/1R4Q1/K1b1Q3/R1b3n1/NqnpQ1b1/pp2b1N1/2Q1R1B1 b - - 0 1 legal: proof: e4 c5 a4 a5 h4 g5 d4 gxh4 Ke2 cxd4 Bf4 f5 exf5 b5 Ke1 b4 Bc1 Ra7 b3 h5 Ra3 Rb7 Ra2 Rb5 axb5 a4 Ra1 a3 Bd3 Rh6 Bc4 Ra6 Bf1 Ra4 bxa4 Bh6 Rh3 Bg7 Rh1 Bf8 Kd2 d5 c4 Kd7 f4 e5 g4 h3 g5 a2 c5 d3 a5 b3 Kc3 e4 Kb4 e3 f6 d4 f5 d2 f7 h4 b6 h2 b7 b2 a6 e2 g6 e1B f6 h3 g7 Kc7 a7 Qd5 a8R Bd6 f8Q Qh5 f7 Qg6 Bb5 d3 Ka5 Ne7 g8Q Bf2 c6 Qf5 Qe8 Qf4 f8N Qc4 Na3 Nd5 Qgg6 Bfg3 Nf3 Qb3 Ne1 Bc5 Qe3 Be6 Ng2 Nc3 Ra6 Bd5 Rb6 Bc4 Rf1 h1B Rf4 h2 Qdg1 d1Q Rh4 Be6 Ra4 Qf1 Bd2 Qf7 Qc1 Kd8 Be1 Bg4 Bf2 Be2 Bg1 Kc7 Nf4 Bd5 Ng2 h1N Rb1 Kd8 Ra1 Be6 c7+ Ke7 c8N+ Kd8 Nd6 Bc4 Be8 Nf2 Qc2 Ng4 Re1 Na6 Qcc1 Nc7 Qee4 N7b5 Qee3 Na7 b8Q+ Nc8 Qa8 Kc7 Qd5 Na7 Nb7 Kc8 Qde5
4Qr2/r1N2q2/N3B1qB/2N1k1r1/1qp1rpQ1/Qb1N3K/1p3b2/1RR3QR b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 Ba3 g5 Bb2 f4 Bc1 Ne7 h3 Nf5 gxf5 Nd7 h4 g4 Qb3 Nc5 Qc2 Ne6 Qd1 Ng5 hxg5 Bd6 Bg2 Bc5 Bf1 Bf8 Kf2 Kf7 d4 c5 e4 b5 a4 h5 a5 b3 a6 b4 g6+ Kf6 d6 h4 e5+ Kg5 a7 b2 e6 Kf6 e7 b3 e8N+ Kg5 d7 h3 f6 Kf5 d5 c4 f7 h2 d6 Rg8 g7 Ke6 Nc3 b1Q Ba3 b2 Bh3 Qg5 d8Q Ke5 d7 Qh5 Ne4 Qh6 Nc7 Bd6 f8Q Qg6 Na6 Qf7 Nec5 Qbg6 Rb1 g3+ Kf1 f2 Kg2 f1R Qde8+ Be7 d8R Re1 Be6 Bh4 Kh3 g2 Qg4 Re4 Rdd1 Bf2 Rdc1 Bd7 Qfe7 Rf8 g8Q Ba4 Qd6+ Kf6 Nf3 g1R Ne1 Bb3 Qde7+ Ke5 Bb4 Rb8 a8N Rb7 N8c7 Ra7 Qa4 Qe8 Qa3 Qb8 Qe8 Qb7 Qh4 Rg5 Qg4 Qb6 Bd2 Qb4 Bc3+ Kd6 Bg7 Qf7 Bh6 Ke5 Qh7 Qg6 Qhd7 Qf7 Qd3 Qg6 Qdg3 Qf7 Rf1 h1Q+ Qh2 Qf3+ Qhg3 Qd3 Rh1 Qdd7 Qh2 Qg6 Qhg1 Qdf7 Ned3+
Nq3Q2/p4B2/Qn1R4/pbkpR3/Rr5b/1p2Q1QR/1K1b2n1/1B2q1NB b - - 0 1 legal: proof: e4 c5 b4 h5 a4 f5 exf5 b6 g4 Nh6 gxh5 Ng8 a5 bxa5 b5 Qc7 Qf3 Qb6 Qd1 Qd8 d4 Nc6 c4 Kf7 d5 Nb4 d6 Ke8 Bd2 Na6 Bb4 cxb4 c5 Rb8 Ke2 Rb7 Ke1 Rc7 dxc7 Rh7 Ra2 Rh6 Ra1 Rh8 Kd2 d5 Kc2 Kd7 h4 g5 f4 e5 h6 e4 h5 e3 c6+ Kd6 h7 e2 b6 e1Q h6 g4 b7 g3 b8Q b3+ Kb2 g2 f6 Bf5 c8B+ Qc7 f7 Qe4 Qd4 Qe1 Rh3 Qb4 Ra4 Qb6 Na3 Qb7 Nb5+ Ke7 Be6 Qbc8 Qe3 Qd6 c7 Qcd8 c8B Qc5 Nc7 Kd6 Na8+ Nc7 Be2 Qc6 Bf3 Be7 f8R Nf6 Re8 Ng4 Bf7 Bh4 Re5 Bd3 f5 Qce8 f6 Bb5 Bf5 Rf8 Qb7 Qb8 h8Q Qe6 h7 Rd8 Ne2 g1B Bh1 Rg8 Qg3 Ne3 Bb1 Kc5 Qa6 Rg4 Qe8 Rb4 h8R Ng2 Rh6 Be3 Ng1 Qe7 Qeg8 Bd2 Q8g5 Ne6 Q5f4 Nf8 Rg6 Nd7 Qfe3+ Rd4 Be6 Nb6 f7 Qee8 f8Q+ Qe7 Qe4 Rc4 Bf7 Rb4 Rd6 Qe6 Qed3 Qee8 Rf5 Qe3 Re5 Qe1 Qde3+
2n2N1r/b3R3/QQRbN2Q/R4K1p/1B1rQ1BN/2p4p/1p1n2nk/6Nb b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 b5 cxd5 f5 exf5 Qd7 Bb2 axb4 Bc1 b3 Qf3 b4 Qd1 Qb5 axb5 Kd8 Bb2 Kd7 Bc1 Ke8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 d4+ Kf6 f4 h5 g4 e5 b6 c5 b7 h3 d6 b2 d7 c4 d8Q+ Ne7 g5+ Kf7 d5 b3 g6+ Kf6 d6 c3 g7 Nd7 b8R Ra6 g8Q Rh7 Qe2 Rh6 Qb6 Bb7+ Qd5 Rg6 Rc8 Bc6 Ra5 Ra8 Qea6 Rg4 Be2 Ng6 Nd2 b1N Ndf3 Nh4 Ba3 b2 Bb4 Ng2 Nh4 Bb7 Rc6 Nd2+ Kd3 Rd8 Qe4 Rg8 Bg4 Rh8 Ne2 Be7 Re1 Ba8 Ng1 Bf8 Qbb7 Nb6 d7+ Bd6 Qb8 Nc8 Qbb6 Kg7 f6+ Kh6 f5 Kg5 f7 Bb7 Qd5 Kf4 f8Q Kg3 f6 Kh2 f7 e4+ Kd4 e3 Qe4 e2 Qh6 Ba8 f8N Bb7 Kd5 Ba8 Ke6 Bb7 Rf1 e1B Kf5 Bf2 Re1 Bd4 Qbb5 Ba7 Qbb6 Re8 d8N Re6 Qee2 Re4 Qec4 Rd4 Re7 Ba8 Nde6 Ne1 Rcc5 Bh1 Rc6 Ng2 Qd5 Bg3 Qf3 Bd6 Qe4
1NB1N1R1/1B1K1B1n/3p1r1k/1Q6/p1p2pB1/N3r1Q1/1Nn1QRb1/b2rb3 b - - 0 1 legal: proof: d4 d5 h4 g5 hxg5 b5 c4 dxc4 a4 Qd6 axb5 Qd7 d5 Qd8 f4 Na6 e4 Bd7 e5 Bc6 d6 Qb8 d7+ Kd8 Be3 Bb7 Bc5 Bc8 Bb4 Qb6 Bd6 Nb8 f5 Qa6 Ba3 Qe6 Bd6 exd6 fxe6 Ke7 Kf2 h5 Ke3 c5 Ke4 a5 Kd5 f5 g4 h4 b4 c3 b6 f4 b7 h3 g6 c2 g7 c1B g5 h2 g6 c4 b5 a4 b6 Ra6 Be2 Be3 Na3 Rh5 Bg4 Rh6 Ne2 Rh5 Nc3 Bc5 Rg1 h1R Ra2 Be3 Qe2 Bc5 Nd1 Ra7 Nb2 Nc6 b8N R5h2 b7 Nh6 g8B Nd4 g7 Bb4 Bf7 Bc3 g8B Nc2 Kc6 Ra5 Bh7 Bg7 Be4 Kf8 Rg3 Bf6 d8Q+ Kg7 e7 Rg1 e8B Ng8 e6 Be1 e7 Re5 Bed7 Kh6 e8N Rf1 Bg2 Re3 Qa5 Bh8 Qc3 Nf6 Bh1 Rh3 Rg2 Re6 Qg3 Nh7 Kc7 Re3 Bdf5 Be6 Kc6 Bd5+ Kd7 Re6 Rf2 Rf6 Bhe4 Ba5 Ra1 Rfh1 Rg1 Be1 Qg2 Re6 Nc6 Na1 b8Q Rg6 Kc7 Rh5 Nd3 Be5 Bgf3 R5h3 Qb5 Bd2 Nb8 Nc2 Bc8 Rf6 Kd7 Ba1 Nb2 Bb7 B3h5 Re3 Qgf3 Bd5 Rg8 Rd1 Bg4 Be1 Qg3 Ba8 Beg6 Bh1 Be4 Bg2 Beb7
RrB4N/2p1NQQ1/k2BK3/1RR1Q3/2r1np1Q/nr2pB2/B4pr1/2n1q3 b - - 0 1 illegal: No possible last move, all moves rejected
1n2Qbq1/pN4k1/1bN1q1N1/3Q4/2pp2bp/Bp5R/N1B2BK1/1n2BQ1R b - - 0 1 illegal: No proof kernel
1q6/1Bn2Nn1/3Q3B/Q2Q4/b2nQbKR/kn1N1r2/1rqB1Rn1/bRq1B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 g4 Kb4 d4 f5 d6 c5 g5 a5 b6 h5 d5 h3 g6 h2 d7 h4 e5 a4 b7 c4 d6 a3 g7 h3 b3 c3 e6 a2 e7 c2 e8Q Ne7 g8Q Nd5 Qee6 Nc7 Qe3 Ra3 Qge6 Bh6 Nc3 Nc6 Rb1 a1B Bd2 c1Q b8B Qc2 Ba6 Rg8 Bb7 Rg2 Nge2 Qg8 d8B Bd7 Rg1 h1N Nc1 h2 Rf1 Ng3 Rf2 h1Q Bg5 Nh5 Qd5 Ng7 Qee2 Qf1 Qee4+ Qc4 Ba7 Qb8 Bd4 Be8 d7 Qf1 d8Q Qh1 Ke2 f3+ Ke3 Qf1 Kf4 Bd7 B4e3+ Nd4 Be1 Ba4 B3d2 Rh2 Kg3 f4+ Kg4 Qc4 Nb5+ Q4c3 Re2 f2 Nd6 f1N Nf7 f3 Bge3 Bf4 Rf2 Rh3 Q8g5 Ra2 Nd3+ Ka3 b4 Rb2 b5 Qc1 b6 Q3c2 Rg2 f2 Qge5 Bg3 Bh6 Bf4 Rh2 Rf3 Rh4 Nb3 Qc3 Ng3 Qca5 f1N Bc8 Qa7 b7 Ne2 b8R Ned4 Bb7 Qa8 Re8 Qb8 Re6 Ng3 Rf6 N3f5 Rh3 Nh4 Rh1 Ng2 Rh4 Rh3 Rf5 Bg3 Rf2 Bf4 Qg6 Rf3 Qe2 Be5 Qee4 Bf4 Qgd6+
r1QB4/Q1n4Q/Rn1RBR2/q1bnb3/4Q1bN/qNrrb2B/5B2/b1k3K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 h4 Ke5 b4 Kd4 h5 f5 d3 a5 d6 c5 b6 g5 d7 g3+ Kg2 g4 h6 c4 b5 a4 b7 a3 h7 a2 b6 c3 e5 c2 e6 Nf6 e7 Bg7 e8B Nd5 Rh4 f3+ Kh1 f4 Bf7 g2+ Kh2 f2 Rh6 f3 Ba3 Ke3 d4 c1Q Qa4 Na6 b8Q Nac7 b7 Nb6 Bc5 Qa3 d5+ Bd4 d6 g3+ Kh3 Qg5 Rf6 Rd8 h8Q Qe5 Qba7 Qd5 Bb4 Be5 b8Q Qc5 Nd2 Qa5 Ne2 g1B Bc5+ Kd3 Be6 g2 Nb3 Kc2 Ng3 Kb2 Nf5 Kc2 Ba6 f1N Bf2 Ne3 Nh4 Ned5 Bf1 Kb2 Qbb7 Kc2 Qe4+ Kb2 Bg3 Be3 Kh2 f2 Qhh7 g1B+ Kh1 Bc5 Bfh3 f1R Bf2 Rc1 Kg2 Rc3 Kf1 Rg8 d8R Rgg3 d7 Rgd3 Kg2 Bgh2 Kf1 Bhf4 Kg1 Bfe3 Qbb8 Bb7 Qc8 Kc2 Rd1 a1B Rdf8 Bc6 d8B Be8 Rg8 Bh5 Rgg6 Bg4 Rd2+ Kb1 Ra2 Q3b4 Ra4 Qa3 Rh6 Qb5 Ra6 Qba5 Bd7 Kc2 Rd6 Kb2 Be6 Kb1 Rf6 Kc2 Nd4+ Kc1 Nb3+
r1RQb1Bn/k2qrq2/1R2r3/NRQ3nb/3bq1r1/5Q2/2NBr1NN/1Q5K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 h5 e4 c5 g4 Kc7 Kg2 Kb7 d6 f5 g5 a4 g6 c4 d7 f3+ Kh2 c3 g7 h3 d5 c2 e5 f2 b6 f4 d6 a3 e6 a2 e7 f3 e8R h4 b5 Ne7 g8Q Nbc6 Qg2 Rh6 Qd4 Ng6 Qc5 Bg7 Rf8 Nh8 Qe5 Nd4 Qc5 Ne6 Na3 Ng5 Bc4 f1B Bg8 Bd4 Rb1 a1R Bf4 c1R Bd2 Qc7 Nc2 Re1 d8N+ Kb8 b7 f2 Nf3 Bg4 Rb2 R1a7 Ne6+ Qc8 d7 Bh5 Nf4 Rhe6 Qg3 Bg2 Qg4 R1e2 Rhb1 f1Q Rb3 Re7 Rb4 Ra6 Qg3 Rb6 Rd8 Ka7 b8N Qc7 Rc8 Be8 d8Q Qd7 Ng1 Bf3+ Ng2 Bb2 Rb3 Bfh5 Qge3 Qf7 Nf3 Nh7 Kg1 Ng5 Rb4 Bd4 Nc6+ Kb7 Na5+ Ka7 R4b3 Be5 Qc4 Bd4 Qb4 Rbe6 b6+ Ka6 b7 h2+ Kf1 Ka7 b8Q+ Ka6 Qc5 h3 Nh4 Re1+ Kf2 h1R R1b2 h2 Kg2 Rhf1 Rb7 Rh1 Qb3 R1e4 Qf4 Rd1 Rb6+ Ka7 Qa2 Rb1 R2b5 Rbe1 Qb1 h1Q+ Kg3 R6e5 Nh2 R1e2 Qe3 Rf4 Qeb3 Qe4 Qf3 Re1 Kg2 Re2+ Kh1 R5e6 Ng2 Rh4 Qg3 Rg4 Qf3
kn3N2/2BR1r2/Q1nNNq1R/2nbq3/n6b/r6B/rBQ1bRn1/1K1R1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 c5 d4 Kc7 Kd2 Kb7 Kc2 h5 g4 a5 e5 f5 e6 c4 b6 c3 d6 h3 d7 h2 g5 h4 g6 a4 g7 f3 d5 h3 d6 a3 b5 a2 e7 f4 e8R f2 Be2 f1N Ba3 f3 Nd2 f2 Ngf3 Be7 Rf8 Bh4 Nc4 Qf6 d8R Bg4 d7 Ne7 g8B Nec6 Bb2 Ra3 Nd4 Ka8 Be6 Ne3+ Kc1 f1R Nd6 Rf4 Qc2 Ng2 Bf1 Be2 Rb1 a1N b7+ Ka7 Rf7 Rh7 Bg4 Rf2 Ne6 Qe5 Rf6 Rf7 Rh6 Qf6 Nf8 Qe5 Rg1 h1B Bf5 h2 Bh3 Ne3 Rg3 Bd5 Rf3 h1Q Rf4 Rh2 Rf2 Ng2 b6+ Ka6 Qf5 Nb3+ Kc2 Nc5 Rd1 Na4 Kb1 Qg1 Qc2 Qf6 Rc8 Qh1 d8N Qg1 Nde6 Qe5 Rf5 Qgd4 Rd8 Qf6 Rd7 Qde5 Qb3 Nd8 Rf2 Ndc6 Qa2 c2+ Ka1 c1N Kb1 Nd4 Qb3 Nd3 Qc2 Nbc6 b8Q Ndc5 Qc7 Nb8 b7 Ka7 Qd8 Ndc6 Qc8 Nba6 b8B+ Ka8 Bc7+ Nab8 Bf5 Ra2 Bg4 Rh3 Bf5 Rc3 Bh3 Rca3 Qa6+
BR3r2/K2B1q1R/QBN1b2q/n1Qr4/5nNb/1Nr3Rq/Nq2nq1k/3R4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 a5 d6 h5 d7 f5 g5 c5 b6 f3 Ke3 c4 b7 a4 g6 h3 g7 f2 b5 h2 b6 c3 Qe2 c2 Nh3 a3 Nc3 h4 Na2 Qe8 d8N Ra5 Qa6 Be7 Bg2 f1R Ne6 Rd5 Nd4 Be6 Nf2 h3 Nb3 Nf6 g8R Nc6 b8N Na5 b7 Nh5 Rg3 Bh4 d3 Nf4 d4+ Kf6 Ng4+ Kg5 e5 Qf7 Be4 Rf8 Nc6 Rc8 Bd2 c1N b8R Nce2 Rd1 Rf8 Bb4 Rf2 Bc5 Rf3+ Kd2 Rc3 Bb6 Nd3 Bf3 f4 Bg2 f3 Ke3 f2 Ke4 Rb5 d5 f1Q d6 Rd5 d7 Ndf4 d8Q+ Kh5 Qc7 Qf2 Qd6 Kg5 Qc5 Kh5 Rhe1 h1Q Bf3 Qhg2 Rh1 Qgf1 Bg2 h2 Bf3 Qh3 Bg2 Bd7 e6 Bc8 e7 Be6 e8B Kg5 Rhe1 h1Q Bd7 Q1h2 Rh1 Kh5 Nab4 a2 Bf3 a1Q Na2 Qb2 Bg2 Be7 Bf3 Kh4 Bg2 Rd4+ Ke5 Rdd3 Bd5 Bg5 Kd6 Rd4 Kc7 Rd2 Be4 Rd5 Rc8 Be7 Kb8 Bd8 Ka7 Be7 Re3 Bf6 Bf3 Kg3 Rb8 Qh6 Red3 Qhg2 Rh5 Qh3 Rh4 Qh8 Rh7 Bh4 Nge5 Qhg7 Bh1+ Kh2 Rg3 Qh6 Bf3 Qhf1 Be4 Qh1 Bg2 Qhf1 Ng4+ Kg1 Nbc1 Rh5 Nd8 Re5 Nb3 Rh5 Ne5 Kh2 Ba8 Qh3 Ndc6 Rg5 Nc4 Re5 Ne3 Rd5 Ng4+
rN2Kn2/R3QBN1/1Q1bQ3/Q1r1rn1b/4qnRN/q2B1N1q/1k5r/3b2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 h3 b6 h2 b7 c4 g6 f3 d6 h4 d7 f2 Ke6 c3 Kf7 h3 e5 c2 g7 a4 e6 f4 d5 a3 d6 f3 e7 a2 e8B Qh4 d8Q Nd7 b8N Rh5 Bg5 c1N Qd5 Ne7 g8Q Ne2 Nd2 Kc3 b4 Qe4 b5 Kb2 b6 Nf4 b7 Nf5 Bd3 f1R Qe7 f2 Ndf3 Re1 Nh4 f1B Ngf3 Be2 Qa5 Bd1 Rg1 h1Q Rg4 h2 Qg6 Qf1 Qge6 h1R Bh6 Qh3 Bg7+ Nf6 d7 Rh2 d8N Ree2 Bh6 Nd7 Bg5 Rc2 Bf6+ Rc3 Bd4 Rg5 Bg1 Rc5 Qc6 Re5 Ne6 Rc5 Ng7 Rh5 Qed8 Bd6 Qe7 Nf8 Qd5 Bd7 Qde6 Bb5 Bd7 Bba4 Ke8 Be2 B7b5 Bad1 Bbc4 Rg5 Q6d7 Re5 Bf7 Rh5 Qde6 Rc5 Rc1 a1Q Rc3 Re5 Rc6 Rc5 Ra6 Qa3 Ra7 Ng3 Bg8 Rhe5 Bf7 Nf5 Ng5 Red5 Rg3 Bg4 Ngf3 Bh5 Rg5 Bc7 Rg4 Bd8 Nd7 Re5 b8Q+ Bb6 Qbd8 Bc7 Nb8 Bd6 Qdb6+
r5q1/1N2BQQ1/B2q4/1b2Rnb1/n1N2krb/1q3qrB/3R1RnB/K2QR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 h5 g4 a5 e4 f5 b4 c5 Kb2 h3 g5 c4 g6 h4 b6 h2 g7 f3 b5 f4 b7 a4 b6 c3+ Ka2 a3 Nh3 f2 Ba6 f1N Nd2 f3 Nf2 h3 Nd3 f2 Nc5 Nd7 b8R c2 b7 Nh6 g8B Nf5 Be6 N1e3 Rf1 h1R Re1 f1Q e5+ Ke7 Qg4 h2 Nc4 Nb6 Qg3 Qe8 Qg7+ Qf7 Rb1 Rh3 Ka1 a2 Rb5 Qf3 Ba3 c1B Bd7 Qf4 e6 Rg1 Ra5 h1Q d6+ Kd8 d5 Ng2 Rb5 Be7 Rb2 Na4 Rf2 Bh4 Bb4 Ra7 Ra8 Rg3 b8B Bb7 Bc8 Be3 d7 Ke7 d8R Bc6 Nb7+ Qd6 Ba3 Bb5 Rd7+ Ke8 e7 Qg8 Bb4 Beg5 Ba3 Qc6 Be5 Qh3 d6 Qf3 Bf4 Rg4 Bh2 Qhg3 Rc7 Qb3 Rc5 Qgf3 Re5 Rg3 Rb8 Ra8 Ree2 Qb4 Rc2 Nge3 Rg2 Nh6 Rb2 Qb3 Rgf2 Rg4 Bb4 R1g3 Ba3 Rf4 Rbe2 Nb6 Rb2 Ng2 Bh3+ Nc8 Bc5 Rfg4 Bb4 Kd7 Bc5 Nb6 Re8 Kc6 d7 Nf5 d8Q Na4 Qd1 Kc7 Rbd2 Kc6 Bd4 Kd5 Be3+ Ke4 Bc5+ Kf4 Ba3 Qe3 Bb4 Nc3 Kb2 Qe5 Rb8 Qee6 e8Q Qe7 Qef7 a1Q+ Kc2 Qc7 Rbe8 Qa4+ Kb2 Qb3+ Ka1 Na4 R8e5 Qb6 Bf8 Qd6 Be7
R1b2Q2/r2r3n/2rr1nk1/BBR3n1/Q4Q2/Br6/R1R1bbrB/2KN2Nq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 e4 f5 g4 Kf7 b4 h5 e5 a4 e6+ Kg6 b6 h3 g5 h4 b7 h2 b5 h3 e7 c4 e8R f3 d6 c3+ Kc2 a3 d5 f2 b6 f4 d7 a2 d6 f3 Bb5 f1R Ba4 f2 Ba3 Rh7 Ne2 Ra7 Ng3 Rg1 Re1 f1B Re5 Rg2+ Ne2 Nf6 Kc1 c2 Ng1 Be2 Bb5 Qc7 d8B Nbd7 b8R Qc6 b7 Bh6 Bc7 Nf8 Rc5 Rd7 Ra8 N8h7 b8Q Ra6 Kd2 c1R Qa4 Rc3 Ba5 Rb3 Nc3 Rb6 Rc1 a1R Nd1 Qe4 Qc7 Rc6 R1c2 Ra2 Kc1 Bg7 Nf3 Bh6 Re1 h1N Ng1 h2 Rf1 Qf3 Rf2 Ng3 Qb8 h1R Qc7 Rf7 d7 Nge4 d8B Rd7 Qf4 Bg7 Bdb6 Rh6 Bc7 Qh3 Bd6 Qh1 Bb8 Ng8 Bd6 Bd4 Be5 Ngf6 Bb8 Kh5 g6+ Neg5 g7 Rg6 g8Q Rcd6 Rf3 Bf2 Qf8 Rh6 Rd3 Kg6 Rdd5 Rhh3 Rdd2 Rhc3 Rf5 Rcc6 Rfd5 Ra7 Rdc5 Rab2 Bbc7 Rbd3 Bb8 Rbb3 Ra2 R3d5 Rdc2 Rdd3 Qg4 Rdd7 Bh2 R3d6 Qgf4
1NnnbRQ1/Q5Qn/1b3nqQ/r3Bk2/nbB5/NR2rrNK/6NB/3b4 b - - 0 1 illegal: No possible last move, all moves rejected
2rb1qBb/1Q1n4/rRBq1BR1/2b5/1k2bNQn/3BN3/3bR1RQ/1Kn2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 h4 g5 c4 f5 Kc2 a5 b4 d5 e4 g3 e6 Kd6 h5 g4 h6 f4 h7 g2 b6 g3 b7 d3+ Kb2 d4 e7 a4 e8B f3 b5 Kc5 e5 f2 b6 d2 e6 d3 e7 Bh6 Qg4 d1Q Ne2 g1B Ra2 g2 Nd2 a3+ Kb1 Ra6 Nf4 Bf5 Bc6 Be4 e8R Kb4 c5 Nd7 b8R Ne7 b7 Ng6 Nc4 d2+ Bd3 f1B Ne3 Nh4 Rg8 Qf6 Rh2 Qf8 Rg6 Bg5 Rc2 Bd8 Ra2 Rg8 h8Q Bf2 Qh7 g1B Rg2 Be1 Qg7 Qf3 Qh8 d1N Rae2 Qg3 Bb2 Bd2 Bf6 Nf2 Qh6 Nf3 Qh2 Nh4 Ba4 Rh8 c6 Rg8 c7 a2+ Kc2 a1B c8B Rh8 Bc6 Bb2 Kb1 Be5 Bc2 Nd3 Bb3 Bd4 Bc2 Nc1 Bd3 Ne5 Be6 Nd7 Bg8 Ba1 Nc4 Bc5 Ne3 Bac3 Nh5 Qgd6 Nf4 Nf5 Ra8 Nh4 b8Q+ Rb6 Qa7 Ra6 Rb8+ Bdb6 Bh7 Qg7 Be5 Rc8 Bg8 Qgf8 Rb7 Ka3 Bd4 Bd8 Rb6 Ba1 Qb7 Bac3 Bf6 Bb2 Bg5 Bh8 Rb5 Ka4 Be7 Ka3 Bf6 Ka4 Rb6+ Ka5 Bb5 Kb4 Bc6+
K1b5/RN4rq/q1rN3n/1R1qBq1N/2nk1qQQ/B1NB4/r1q5/b2QB3 b - - 0 1 illegal: No possible last move, all moves rejected
RKNN3r/1n5n/1rq1rN2/Q2B1BB1/2nQbk2/qR2Rn2/B1n2bR1/6n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 a5 g4 c5 b4 h3 b6 f3 b7 h2 b5 f6 b6 c4 g5 a4 g6 a3 g7 c3 Ra2 f2 Nh3 c2 Nf4 h4 Nc3 h3 Nb5+ Ke7 Nh5 f5+ Ke5 f4 e4 f3 Nd6 Bf5 Bc4 f1N Bg5+ Nf6 g8B c1N Bh4 Na6 b8R f2 b7 Ne3 Re1 h1Q Nc8+ Kd7 d6 f1N d5 h2 Qd2 Nh7 Qa5 Ne2 Bf7 Ra7 Ra8 Nd2 b8R Ng1 Rc2 a2 Bb3 a1N Ba2 Qb6 Nf6+ Kd8 d7 Rb7 Rb2 Kc7 Rc2+ Nc5 d6+ Kc6 d8Q Qb4 d7 Qa3 Re2 Bg6 Rc3 Nac2 Rd3 Rc7 Rbb3 Nb7 Ke6 Bd6 e5 Bc5 Rdc3 Bd3 Bg6 Qg2 Bf5 Qe4 Rf2 Ndf3 Rd2 Nc4 Rf2 h1R Re2 Nh3 Rg2 Ncd6 Ke7 Re1 e6 Nhg1 Rd2 Nf8 Rg2 Nc4+ Ke8 Bf2 e7 Bf1 Rd3 Qe6 Rdc3 Re5 Re3 Bd3 Qc3 Be4 Qd3 Nc5 Qd4 Rb7 Qa5 Rb6 Kd8 Nh7+ e8B Qd5 Na7+ Kd6 Kc8 Re6 d8N Nb7 Bc6 Qb2 Kb8 Qa3 Qdc5+ Ke5 Nc8 Kf4 Qd4 Qb5 Bd5 Qc6 Bg5+
2b1Q1K1/Qbb3RB/2B1n2B/b1kBbb2/1n2Rr2/R7/1qN2r2/2NnqR1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 c4 b6 c3 b5 h3 b7 f3 g5 a4 g6 h4 b6 h2 g7 f6 Na3 f2 Nc2 a3 Bh6 a2 Qe1 h3 Bg2 Na6 b8N f1Q b7 Nb4 Nc6 Rb8 Ne7 Ra8 b8Q+ Qc7 e3 Ra4 Qa7 Qb8 Ne2 Qb6 Rg1 h1B Nc1 h2 Qe2 Qe1 Rf1 f5+ Kf4 Nc6 Kg5 f4 Kg6 f3 Kf7 f2 e4 Nf6 g8B Qb2 Bh7 Nb4 Qb5 Rg8 Qe8 Nd7 Bf3 Rg5 Bg2 Rf5+ Kg8 Nc5 Bf3 Bb7 Bg2 Ne6 e5+ Kc7 Be4 Rf6 Nf5 Bd6 Ng3 Rf3 Qaa8 Kb6 Qab8 Bc7 d6 Rf4 d5 Kc5 d7 Bc8 d8R Bf3 d6 h1N Ba8 Bfb7 d7 Ra6 Qa7+ Rb6 Rg1 f1B Rb1 Nf2 Nh1 Bc4 Rg7 Nd1 Ra1 Bca6 Rb1 Be4 Bd5 Bf5 Ra1 Bcb7 Ra8 Bc8 d8R Bab7 Rb1 a1B Rdd7 Rf2 Rg4 Rf4 Rdg7 Rf2 Re4 Rf4 Qaa4 Ra6 Qad7 Ra2 Ra3 Ba5 Nd4 c2 Qa4 Nf8 e6 Bc7 e7 Ne6 Qf7 Ba5 e8B Bc7 Bec6 Ba5 Nce2 c1B Qe8 Bd2 Nc1 Bc7 Qa8 Bc3 Nc2 B3e5 Qa6 Ba5 Qa8 Bec7 Ne2 Qb3 Nc1 Bae5 Na1 Raf2 Nc2 Qa2 Qa7+ Bcb6 Rbb3 Qa1 Rf3 Qb2 Qb8 Bbc7 Qa8 Rh2 Rf1 Rhf2 Qa7+
1Rb1r1qN/2NbQ1R1/N3bN2/2rnnr2/5B2/k2R3n/1B2BnQb/K3nB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 Kb2 a5 e4 a4 b6 c4 g5 f3 g6 f2 g7 f4 b7 f3 b5 h3 b6 h4 Nc3 h2 Nge2 h3 Ra3 Ra5 Nf4 Nc6 b8N Ne5 b7 Nf6 Rg1 h1N g8B h2 Ka1 Rb5 Rb3 a3 Qc2 a2 Ng6 Rc5 Be2 f1R Na6 Nf2 b8R h1B Qb2 Nh3 Nb5+ Kd7 d6 Kc6 d7 c3 Bh7 c2 Nbc7 f2 Rd3 Nd5 Bg8 Qe8 d8B Bd6 Bf6 Bf3 Be6 Bg4 Bf5 Rg8 Nh8 Qf7 Bh7 Bgd7 Rg7 Re8 Bg6 Qg8 Bgh5 Rg1 Bf1 Rg5 Bhe2 Rf5 Bf4 c1N Qc2 Nf7 e5 Be6 Kb2 a1N Qd2 Bed7 e6 Nc2 e7 Ne1 Ka1 Ne5 Qc2 Bb7 Qa2 Kb6 Qb2+ Ka5 Qd2+ Ka4 Qb2 Nc3 d5 Bbc8 Qb7 Ka3 Qc6 Nc4 Qa8 Be5 d6 Be6 d7 Bd6 d8Q Ne5 Re3 Ncd3 Qg2 Nd5 Reg3 Ng4 Bc3 Nde5 Bb5 Bed7 Rd3 Be6 Be2 f1B Bc4 Ngf2 Bb5 Ref8 e8N Bed7 Nf6 Re8 Qe7 Be6 Bf3 Be2 Bc4 Bd1 Be2 Ba4 Bf1 Bc6 Rdg3 Ba4 Bce2 Bad7 Rd3 Nc4 Bh6 Bh2 Bf4 Ne5 Bb2+
BrR1NB1Q/BQ2Rb1n/r7/1r1bK2Q/b2Nb2q/n5kR/3B2q1/b1r2Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 f5+ Kd3 c5 e4 h3 b4 h4 b6 a4 g5 f3 b7 a3 b5 f4 b6 a2 g6 h2 g7 h3 Nc3 f2 Nge2 f3 Bg2 f1Q Bd2 Nf6 g8Q Na6 b8Q+ Nc7 b7 Rh5 Qh8 f2 Rb1 Qg1 Qf1 a1R Re1 c4+ Ke3 R1a6 Kf4 Nh7 e5+ Kd7 d6 Ke6 d7 Nb5 Qc7 Na3 b8B Bg7 Ba7 Rb8 Nd5 c3 Nf6 c2 Qb7 c1R Ne8 Rg5 Bf3 Qg2 Ke4 Qf6 d8B Bd7 Be7 Ba4 Bf8 Qe7 Qg1 f1B d5+ Kf7 e6+ Kg6 d6 Ba1 d7 Rb5 Nd4 Bc4 Re3 Kg5 d8R Kh4 Rc8 Kg3 Qf1 Qf6 e7 Bf7 Rc5 Qh4+ Ke5 Rbb1 Rc8 Rb4 Qe2 Rbb1 Re1 h1B Qf1 h2 Rd3 Qg1 Re2 Rb5+ Bd5+ Bf3 Rde3 h1B Rh2 Kg4 Rh3 Qg2 Qd7+ Be6 Nc7 Rb3 e8Q Qgf2 Ba8 Bd5 Qdb5 Rb2 Qb7 Rb5 Qf7 Bhf3 Ne8 Qg2 Qg6+ Ng5 Kf6 Bf7+ Re6 Bfe4 Qgh6 Nh7+ Ke5 Bc3 Re7 Ba1 Rh2 Kg3 Qh5 Nc2 Rh1 Na3 Rh3+
3nn1Q1/Rn4Q1/8/nNBb1kb1/RB1q3Q/3q2rB/1b3NrR/Qbb1KB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 b4 f5 g4 a5 e5 c5 d6 Ke6 g5 c4 d7 a4 g6 h3 g7 c3 b6 h4 b5 c2 b7 a3 b6 f3 Bd3 a2 Nc3 h2 Rb1 a1B Bf1 h3 Bh6 c1B Qd2 f4 d5+ Kf5 e6 Ra3 d6 Nc6 b8B Nf6 g8Q Ne8 e7 Bab2 Qg7 Rg8 b7 Ra2 Qd1 f2+ Ke2 Ra3 Nb5 Rg3 Nf3 Rg2 Ne5 f3+ Kd3 Qb6 Be3 Nd8 Ng4 Qd4+ Kc2 Rg3 Ra1 Rg2 Ra4 Rg3 Qh8 Bh6 Qg7 Bg5 Bc7 Rg2 b8Q Bb7 Ra7 Bd5 Ba5 Rg3 Qe1 Ba2 Bad2 Bb1+ Kd1 Rg2 Qc8 Rg3 Qa6 Rg2 Qa1 Rg3 Rg1 h1B Rg2 h2 Ra4 Qe5 Bc5 Qd4 Be2 f1N Bc4 Nc6 d8Q f2 d7 Ne3+ Ke2 f1N Bdb4 Nd2 Qb8 Ne4 d8R N4d6 Rd7 Nd8 Rda7 N6b7 Kf2 Bc2 Bf1 Nc4+ Ke2 Nca5 Qa8 Rf3 Qh4 Rg3 Ke1 Bb1 Rd2 Bhe4 Rc2 h1Q Rh2 Bd5 Qb8 Nf6 e8B Qf3 Bc6 Qfd3 Qa8 Be6 Bcg2 Bd5 Bh3 Ne8 Qb8 Rf8 Qd6 Rf7 Qdf8 Rf6 Qfg8 Rc6 Bd6 Rc2 Bdc5 Rcg2 Nf2+
2rN1k1b/2r1q1b1/4R1QR/1Q3BnK/2Q2R2/bq3Q2/r1rNn1bN/rN2B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 Kf3 f5 g4 c5 d4 a5 b4 a4 e4 h3 e5 h2 e6 c4 g5 h4 g6 h3 d6 a3 e7 a2 g7 c3 b6 c2 d5 Nf6 g8N Ne4 b5 Bb7 Bd3 Bg7 Bd2 c1B Be1 Nc6 Nh6 Ba3 Ng4 Kf7 e8R Qe7 d7 Ng5+ Kf2 f3 Kg3 f2 d8Q f1Q d6 Ra5 d7 Nd4 Qc7 Bg2 b7 Rh7 Bc2 Qc4 b8Q Qb3+ Nf3 Ra6 Rf1 h1R b6 h2 b7 Rc6 Qb6 Rc8 Qf4 Rg1 b8Q h1R Qa6 R1h2 Qbb5 Bh8 d8N+ Kg7 Kf2 Ne2 Qfc4 f4 Nfd2 f3 Bf5 Rgh1 Rf8 Rg1 Rf6 Rgh1 Rh6 Kf8 Qg6 Rf7 Nc3 Bg7 Rc1 a1B Ncb1 Bh8 Rc3 Rg1 Re3 Bag7 Re6 Rgh1 Qdc2 Rg1 Q2d3 Rgh1 Ke3 f2 Rg1 f1R Qdc3 Rh4 Nh2 Rf2 Rf1 Rd4 Qcc5 Ra4 Qcc4 Bb2 Q3d3 Ra2 Qdc3 Ba3 Q3d3 Ng1 Qdc3 Re2+ Kf4 Rc2 Kg4 Ra2 Ne4 Rec2 Ned2 Ne2 Rf4 Rf1 Qf3 Rg1 Bh4 Re1 Kh5 Rd1 Nc3 Rda1 Be1 Qd6 Re5 Rfc7 Re6 Qe7 Ncb1
1R3brB/1b3N1N/B3b2Q/K1Q2r1q/2br3b/n1NR1k1q/1QRQ2r1/2N3n1 b - - 0 1 illegal: No possible last move
5KB1/B1B1Qb2/2Q1R3/N3rk2/nn6/qRBn2nR/Q1bR1nN1/r1bbq3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 a5 d4 a4 e4 f3 g4 h3 g5 h4 g6 a3 b6 h2 b5 f2 d6 c4 g7 h3 b7 a2 d5 c3 b6 f4 Qc2 f3 Bc4 f1N Ne2 f2 Nd2 Ra6 Rb1 a1Q Nf4 Nf6 g8Q Ng3 Bb2 f1B Ng2 Bd3 Nb3 Bh6 Na5 Qa3 Rbd1 Be2 Rd2 Bd1 Qc1 c2 Bc3 Ra8 Bb3 Na6 b8R Rh7 b7 Nc5 Ba2 Qe7+ Qe6+ Kd8 d7 Na4 Qa1 Qeb4 Qc6 c1N Ke6 Nd3 e5 Be3 Bc4 Rh5 Kf7 Rf5 e6 Re5 Kg7 Ke7 Qa2 Qb1 d8R Bd7 Rh8 Be8 Re1 h1N Ree2 h2 Rh3 Nhf2 Re1 N6e4 Kg8 Kf6 e7+ Kg5 d6 h1B d7 Bf7+ Kf8 Kf5 d8B Nf6 Bc7 Nd5 Ree2 N5b4 e8Q Bc2 Qe7 Qe1 Bd5 Bg5 Re3 Bd1 Re8 Bc2 b8B Bf4 Ba7 Bg5 Nf4 Bf3 Ng2 Bfd1 Rb8 Be8 Bg8 Bf7 Re4 Bf4 Rd4 Bg5 Rd6 Bf4 Re6 Bg5 Re2 Bc1 Rd2 Nab2 Nb3 Nd5 Bc5 Qb4 Qb1 Ra1 Ba7 Na4 Na5 Qa3 Rb3 N5b4 Qa2
bk1B2q1/NB3qR1/qN4n1/4RQ2/4Nb2/b1qbRN1Q/1n1rBK1B/r6q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 g4 f5 d4 c5 e4 Kc7 g5 h5 e5 a5 g6 h3 g7 c4 e6 c3 e7 c2 e8R f3 Nd2 f4 Ra3 Ne7 g8B h2 d6+ Kb7 d7 a4 b6 f2+ Ke2 h4 d5 h3 b5 Nbc6 d6 f3+ Ke3 Rh4 Bd5 Rd4 Qe2 Ra5 Qd3 Ra7 Bb2 c1B Be4 Rd5 Be5 Na5 Rc3 a3 Qb1 Qc7 d8Q a2 d7 a1Q Qb3 Qc6 Be2 f1Q Qc7+ Ka8 d8B f2 Qd7 Qg2 Qa3 Ra6 b7+ Ka7 Bd6 f1Q b8N+ Bb7 B6c7 Qf7 Qf5 Qgg8 Kf2 Ba8 Rf3 Qcf6 b6+ Kb7 Rb3 Nc4 Nd7 Qae5 Rb5 Qa1 Qaf3 Qac3 Q3g4 Ra3 Ngf3 Nb2 Rg1 Ra1 Qh4 Qd6 Rg7 Ng6 Bb8 Qdc6 Bf4 Ba3 Qh7 Ka6 b7 Ka7 b8N Qa6 Nb6 Rd3 Bb7 h1B Nh2 Bd5 Nhf3 h2 Qhh3 h1Q Bh2 Bc4 Rd5 Bb5 Ree5 Bc4 Ne4 Bf4 Rd6 Rd2 Rd3 Bb5 Re3 Bc4 Bd5 Bd3 Nc6+ Kb7 Na7+ Kb8 Bb7
1q1r1rQ1/k2nR3/1b1q3R/3NRNb1/1R1B1QQ1/1r1Br3/b4B2/2KQnnn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 f5 d4 c5 Kd2 Kc7 e4 Kb6 d6 h5 d5 a5 d7 h3 d6 f3 g5 f2 g6 h4 e5 c4 g7 f4 e6 c3+ Kc2 h2 e7 f3 e8Q a4 Qde2 a3 Nd2 a2 Qe1 h3 Nc4+ Ka7 Ne2 Nh6 g8Q Ng4 Ng3 Ne5 Bd3 f1R Qd1 f2 Ne3 Re1 Qeh5 f1N Qhg4 Nf3 Nd5 Re3 Bb2 Ng1 Kc1 c2 Nf5 Qf6 d8R Nd7 Rb1 a1N Re8 Bh6 Re5 Bg5 Bc3 Ba6 Be1 Rf8 Bf2 Qd8 Rb3 Qb8 Rc3 Bb7 Rc8 Ba6 Rce8 Bd8 R8e6 Bb6 Re7 Bb7 Kb2 c1B+ Kb1 Nc5 d7 Nc2 d8B Ne1 Bc7 Nd7 Bd6 Ba8 Bc5 Bd2 Bd4 Rd8 Qh7 Rhf8 Qhg8 Re2 Kb2 Bg5+ Kb1 Re3 Kc1 Bc5 Nc7 Bd5 b6+ Kb7 b5 Ba2 Nd5 Ka8 b7+ Ka7 Qgf3 Bb6 Qg4 Ngf3 Rg1 h1R Rg2 Qd6 b8R h2 Rg3 Rg1 Rh3 h1Q Rhh7 Qh2 Rh6 Bc5 Rb6 Rg3 Rb8 Ng1 Rb7+ Ka8 b6 Rgf3 Ra7+ Kb8 b7 Bb6 Ra4 Rg3 Rc4 Ka7 b8Q+ Ka6 Qc8+ Ka7 Rb4 Qb8 Qc4 Rgf3 Re4 Qhd6 R4e5 Rg3 Bc3 Rh3 Qcf4 Rhf3 Bd4 Rh3 Bb1 Rb3 Be4 Rhe3 Bd3
2r3Qn/N4RQ1/2n1R1bq/1B1Rn1rQ/Q2R2r1/kqb5/1q1q2NK/1n1NB3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 a5 d4 h5 g4 f5 Kg2 c5 g5 a4 b6 f3+ Kh2 c4 g6 h3 g7 f4 b5 h4 b7 c3 b6 f2 Qg4 f3 Qh5 c2 Bb2 c1N Ra3 Ra5 Bb5 f1Q Nc3 f2 Nd1 Nc6 b8N Nge7 g8Q Ng6 b7 Qd3 Qg7 Qb3 Nf3 Bf5 Rf1 Nd3 Ne1 Nde5 Ng2 Rg8 Ra1 a3 Bc3 a2 Be1 Nh8 Qe2 Ra4 Qc4 Bg6 Rc1 a1R Rc2 Qg5 Re2 Qd2 Re3 Rc1 Re2 Ne7 Nc6 Ra5 Na7 N7c6 b8R Be7 Rb7 Bf6 Rf7 Rc8 Rg1 Rc3 Rh1 Rg3 Rg1 Rg4 Rh1 f1Q Rg1 Qf5 Rf1 Qd7 Rf5 Qdb2 Re3 Bg5 Re2 Bd2 Rg5 Bc3 Rgf5 Kc7 d6+ Kb6 d5 Qd8 d7 Qg5 d8R Qgd2 Qd3 Kc5 d6 Kb4 d7 Ka3 Re3 Ra4 Qc4 Rg5 Re8 Rb4 d8Q Ra4 Re6 Rb4 Qdg8 Ra4 Kg1 h2+ Kf1 h1N Kg1 h3 Rd3 Rb4 Kh2 Ng3 Rf4 Ne2 Rd5 Bd4 Rg4 Nc3 Rgf4 Nb1 Rh4 Nd7 e5 Bc3 Rhd4 Ra4 Re8 Rb4 e6 Nde5 e7 Ra4 Red8 Rb4 e8Q Ra4 R8d6 Rb4 Rg4 Ra4 Re6 Rb4 Kg3 h2 Kh3 h1Q+ Kg3 Qf1 Kh2 Qf6 Rgd4 Ra4 Q8h7 Rb4 Qh5 Ra4 Qeg8 Rb4 Qgh6 Qg7 Qhh7 Qh6 Qhg7 Ka2 Rdf4 Be4 Qc5 Bg6 Rh4 Rf4 Qc4 Ka3 Rg4 Rf2 Re4 Rf4 Red4 Rfg4 Qa4+
N4b2/2rBr1Rb/2qQ3q/1Rb2rQq/2rnn1RB/1b5R/BKB2Nk1/3Q4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kd6 Kc3 f5 g4 a5 b4 c5 e4 h5 b6 f3 b7 f2 b5 f4 g5 c4 g6 f3 b6 a4 g7 a3 Bb2 a2 Nh3 Qf6 Nd2 Ra7 Rg1 Qh6 Rb1 a1B Rg4 Bf5 Bd3 f1R Nf2 h3 Bc2 Nc6 b8Q+ Rc7 b7 Nf6 g8B h4 Rc1 h2 e5+ Ke7 e6 Kd6 e7 h1Q e8B h3 Rg7 h2 Bd7 Rh7 Qd8 Qg2 b8R h1Q Rb5 Q1h5 Rg4 Re7 Bf7 Bg7 Qg8 Bf8 Qg5 Bh7 Rb1 Re5 Bfe6 Rfe1 Rc1 Rf5 Bg8 Ke7 d6+ Kd8 Rb1 Qgh2 Rb3 Ra5 d5 Qh1 Bdf5 Re4 d7 Ke7 d8R Qg2 Nh1 f2 Bd3 f1B Nf2 Be2 Kc2 c3 Nc4 Re6 Kc1 c2 Be5 Bd4 Nb6 Rc5 Bb5 Bc4 Rh3 Qh1 Bg3 Re3 Kd2 c1R Na8 Re5 Re8+ Kd6 Re7 Rc3 Rb3 Rf3 Be4 Rf5 Kc2 Qg2 Rg7 Qf3 Rf4 Ree7 Bd3 Ke5 d6 Qd5 d7 Ne4 d8Q Qd7 Ba4 Be6+ Kb1 Rc1+ Ka2 Bc5 Kb2 Nd4 Bc6 Bf7 Rb5 Qdd6 Be8 Qc6 Bb1 Ba2 Bb3 Rc3 B3c2 Bb3 Ba2 Rc4 Qg6 Re6 Qdg5 Ree7 Bd7 Ne6 Qc1 Kd4 Qf1 Ke3 Rg4+ Kf3 Qd1+ Kg2 Q6f6 Nd4 Qfg6 Nf3 Qgd6 Nd4 Bh4+
3q1q1n/B3bnb1/B3Nk2/R2bBBq1/4R1n1/1Q6/1qN2QQr/r2NN1Kb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 g4 h5 d4 f5 e4 a5 b4 c5 d6+ Ke6 g5 a4 b6 h3 b5 h4 d5+ Ke5 d7 h2 d6 f3 g6 f4 b7 a3 b6 a2 g7 h3 Nc3 c4 Qe2 Ne7 g8Q Nbc6 b8Q Ng6 b7 Kf6 Be3 Be7 Ba7 Nce5 Nd1 c3 Qd5 Nf7 e5+ Kg7 e6 c2 Qe1 c1Q Ba6 Kf6 Kf1 f2 Qg2 Qc5 Nf3 Qg5 Qe3 Rh7 Ne1 Ngh8 Rg1 h1B Qef3 Qe8 d8N h2 Nc6 Qd8 Nd4 Bd7 Qe2 Bc6 d7 Bd5 Ndc2 Rh4 Qd6 Rh7 b8B Rh4 Qb4 Rh3 Rb1 a1B Qb3 Be5 Ra1 Rh4 Qef3 Rh5 Ke2 f1N Kf2 Ne3 Ra5 Ng4+ Kf1 Bc3 Qff2 f3 Bd6 Kf5 Bf4 Bg7 Bc7 Kf6 Bg3 Bc5 e7 Rh3 e8B Be7 Qd2 f2 Bgb8 Qc7 d8N Qc8 Ne6 Qd8 Qde3 Rh7 Bd7 Rh6 Ke2 f1Q+ Kd2 Bef8 Qg3 Bhf3 Be8 Bc6+ Rd5 Nfe5 Ncd4 Bd6 Bb6 Rh5 Bb5 Be7 Bg6 Ra1 B6a7 Nf2 Ba6 Rh6 Be4 Kf7 Ra5 Bd5 Rg2 Nfg4 Re2 Qg2 Bc7 h1Q Qef4+ Nf6 Ke3 Qhf1 Bcb8 Qh2 Qh3 Bh1 Qg3 Qhh4 Qg2 Qhg4 Bb1 Rh2 Bh7 Q4f5 Bc7 Qb1 Ndc2 Qb2 Bcb8 Qh5 Qd4 Qff5 Bc7 Qfg5+ Kf2 Qf3+ Kg1 Nfg4 Qdf2 Qff4 Re4 Qff6 Bg8+ Kg6 Bd6 Qff8 Bc7 Nef7 Bcb8 Qf5 Bh7+ Kf6 Bc7 Qf4 Bf5 Qg5 Be5+
1NnrN1B1/k4B2/2N1b3/1Qq3RK/3BNb1p/BQq5/n1n2brr/2RQq3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8N c2 g5 a3 g6 a2 d5 Qf6 d8B Be6 g7 Nc6 d6 Nge7 g8B Qc3+ Bd3 Nb4 d7 Nc8 Ba3 c1B Bf6 Bc5 d8Q Bf2 Qd5+ Kb8 b7 Ka7 Bf7 Rg8 b8N Rg2 Ne2 Bce3 Rg1 h1R Bc2 Rhh2 Nd2 Qc5 Rb1 a1Q Ne4 Qac3 Qb3 Na2 Nd4 Bc1+ Bd3 Bd2 Rc1 Bde3 Bc4 Bd2+ Ke2 f3+ Kf1 f4 Bg8 Bd7 Bcf7 Be6 Be5 Bfe3 Bg7 f2 Ke2 f1N+ Kf3 Be1 Be5 B1f2 Ndc6+ Kb7 Nb4 Ka7 Bd4 Bd2+ Nd3 Ne3 Nb4 Kb6 N4c6 Nc2+ Ke2 Kb7 b6 Bde3 Nd7 Ka6 b7 Bd2 b8Q f3+ Kf1 Bf4 Qe5 Be1 Qeb8 f2 Ke2 Ne7 Qe5 Rd8 Qh5 Nc8 Qhd5 Q3b4 Kf3 Kb7 Ndb8 f1Q+ Nf2 Qfc4 Ne4 Bf2 Qg5 Ka8 Qd5 Qe1 Qd7 Rg6 Rg5 Q4b4 Qdd5 Qbc4 Qf5 Qcc3+ Kg4 Rg7 Kh5 Rg6 Ne7 Ka7 Qfd5 Rg7 Qdc4 Rg6 Qcb5 Rg7 Rf5 Rg3 Rg5 Rgg2 Nec6+
1n1rRN2/1K1BB1q1/rb3p2/3k1QB1/1Qn2q2/bRQ5/BNb5/R1nq2Qr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Ra3 Kd7 Kf2 Kd6 Kf3 h5 Ke4 c5 b4 a5 d4 f6 g4 h3 g5 h4 g6 a4 b6 c4 b5 h2 b7 c3 g7 f3 b6 f2 Nd2 h3 Ngf3 c2 Ng5 Rh7 Ne6 Be7 Nf8 Nh6 g8B Na6 b8Q+ Qc7 b7 Bd8 Nc4+ Ke7 d6+ Ke8 Kd5 Qg7 Kc6 Qh8 e4 Nf7 e5 Bf5 d7+ Ke7 d5 Nd6 Bg5 c1B e6 Bc2 Qc7 Rh4 b8Q Qg7 Rb3 Rd4 Rd3 a3 Qb4 a2 Qde1 Ba3 Nb2 a1Q Rf3 Qb1 Bb5 f1Q Qe4 Qbc1 Qf5 Qf4 Qb6 Qe2 Ra1 h1N Qa7 Rd1 Qg1 h2 Rd3 Bb6 d8B+ Ke8 e7 Nf2 Be6 h1R Bc4 Qed2 Ba2 Nc4 d6 Nb8+ Kb7 Ra6 Rb3 Nd3 Bc8 Kf7 e8R Qe2 d7 Nc1 Be7 Rd6 d8Q Qd1 Qdd7 Rd3 Qdd4 Rd2 Qdc3 Rd3 Qh7 Rd8 Nd7 Ke6 Nf8+ Kd5 Bd7 Rc8 Qhh3 Rd8 Qf5+
4b2K/n3RRQ1/1nB2BN1/1b1R3b/Q3b2q/1rB4r/k3nQBp/NR2b1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 b7 c2 d6 Kb3 Bg2 f1B Nd2+ Kb4 Ngf3 h2 Nb3 h3 Rb1 f4 Na1 a4 Bd2+ Kc4 b4 c1N b5 a3 b6 a2 Bc3 Ra3 Nh4 f3 Ng6 Be2 Re1 Qh4 d8R h1B d7 h2 Qa4+ Bb4 Kf5 f2 e5 f1B e6 Bf3 e7 Ne2 e8B Nc6 b8Q Bh5 b7 Nf6 g8Q+ Nd5 Qg7 Rb3 Qba7 Nb6 b8R Ba6 Ke6 Bb5 Kf7 Rh7 Kg8 Rh6 Qb7 Na7 Qf3 Bc6 Rb7 Rh7 Nc2 a1R Qf2 Bb5 Bh3 Be4 Bg2 Ra2 Na1 Rab2 Rbd1 Rb1 Rd5 Rd1 Rdb8 Bc6 d8B Rc1 Bf7 Be8 Bdf6 Ra3 Red1 Bd7 Qf8 Rg7+ Kh8 Ng3 Be1 Bfd3 Re8 Ne2 Nf4 Rg3 Qg8 Rh3 Qg7 Rac3 Be6 Ra3 Rf8 Bde8 Re7 Rb1 Ng6 Rc1 Bec3 Rb1 Bb2 Rc1 Rd2 Rg1 Rd1 Rc3 Rb1 Ra3 Qd1 Be1 Rff7 Kb4 Bc8 Bdb5 Bd7 Rad3 Bbd4+ Ka3 Bc6 Ka2 Bb2 Rde3 Qd4 Ra3 Bc3 Rb3 Qa4+
rn2n3/1n2qB1r/n5nB/R1bR2Nk/3Rb2Q/1pQ1Nrb1/B4BNR/3K4 b - - 0 1 illegal: No possible last move, all moves rejected
1nRq3Q/nK2N3/B1Nr2nb/Q1QQ1br1/k3r2p/6r1/rBN1R1N1/1R3b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 d4 h5 b4 f6 g4 h3 b6 a4 g5 h4 d6 Kc6 g6 Kb5 Kd5 f3 e4+ c4 b7 f5 e5 h2 e6 a3 d7 f4 g7 a2 e7 f2 e8R f3 Ne2 c3 Qc2 Rh7 Nf4+ Kb6 b5 Ka5 b6 Ra7 Ba6 f1B Re2 f2 Bb2 Rh6 Ng2 Rd6+ Kc5 Ne7 g8N Nec6 d5 Bg7 Ne7 Bh6 Na3 Ra8 Rae1 a1R Rb1 Na7 Qc1 Ka4 Nc2 Ra3 Qe3 Qh8 d8Q Bf5 Rg1 h1R Qc7 Rd7 d6 Qd8 Qd2 Rh3 Qd5 Ra2 Rc1 Rg3 Rh1 Nbc6 b8Q Rg5 Qbc8 Nb8 b7 Ra3 Kb6 Rb3+ Nb4 c2 Rb1 c1N Qc5 Rc3 Nc2 Rcg3 Qd5 Qe8 Qcc5 Nd3 Rh3 Rd8 d7 Ne5 Q8c7 Ng6 Qce5 Qg8 Qh8 Re8 d8Q Qf8 Nc6 Re4 Ne7 R3g4 Rc3 Rg3 Qcd6 Qf6 Rc8 Qf8 Q8c7 Qd8 Q6c5 Nbc6 b8N Nb5 Ree1 Be2 Bb7 f1R Qdd6 Kb3 Nce3 Ra2 Nc2 Ka4 Ba6 Nba7 Kb7 Bc4 Re3 Rd1 Q7b6 Bf1 Re2 Rd5 Qe6 Rd6 Qed5 Nce5 Nbc6 Nd7 Qc7 Nb8 Q7a5+
n6K/1Rr2qN1/p1NkbB1B/4N3/1b3b1r/Q3nRrQ/r5QB/1Q1r1n1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 h5 Kf5 h3 g4 a6 d4 f3 b4 h4 e4 f2 g5 f6 Kg6 h2 b6 h3 b5 f5 b7 f4 b6 c4 e5 f3 d6 c3 d5 c2 e6+ Ke8 e7 Kd7 e8N Nc6 b8B Na5 b7 Bh6 Ng7 Qc7 Qd3 Nf6 Ne2 Qc4 Nd4 Ra7 Ra3 Qb4 Nd2 Qb2 Nc6 Nc4 Bg2 Ne3 Nc4 f1R Rg1 f2 Bh1 Re1 Bd2 Re2 Rb1 f1N Kf7 c1B g6 Nc2 Bc7 Qe5 b8Q Nce3 Rb7 Ne8 Qb3 Rh7 Kg8 Bf4 Qb2 Qe7 Rd3 Qg5 Qa3 Rh4 Rc3 Rg4 Kh8 Qf5 Rd3 Rg3 Rdb3 Nd1 Rf3 Qf7 Be3 Ra2 Bd2 Be5 Bh6 Bef4 Nh5 Rag2 g7 Bcd2 g8Q Nde3 Ng7 Bb4 Qh7 Ra2 Qb1 Ra8 Qa7 Rb8 Qd4 Ra8 Qd2 Ra7 Bb8+ Nc7 Qg2 Rg4 N6a5 Rg3 Ne5+ Kd8 d7 Ke7 d8B+ Kd6 Nac6 Bf5 Rb6 Be6 Bf6 Rb7 Ba7 Na8 Bb8+ Rc7 Rb7 Kc5 d6 Kd5 d7 Kc5 Qg1 Kd6 Bg2 h1R d8Q+ Kc5 Qf2 h2 Qc8 Kd6 Qe2 Rg1 Qf2 h1R Qfb2 Rhh3 Bh1 Rh4 Qg2 Bc4 Qch3 Be6 Qab2 Nd2 Qc3 Rd1 Qa3 Ndf1 Ba7 Nd5 Bg1 Nde3 Bh2
1N2q1Qb/N2q1bBK/n7/nB2Q2Q/3qN2k/2b2r1b/1Q2p1b1/rR1N1B1R b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 a5 g4 c5 d4 h5 b4 c4 d6 e6 g5 e3 b6 h3 d7 h2 b7 e2 d5 e1B d6 a4 b5 h4 b6 c3 Nd2 c2 Ne2 Kh5 g6 a3 g7 e5+ Kf5 a2 f4 e4 Bb2 c1Q Rb1 e3 Ne4 h3 N2c3+ Kh4 Kg6 a1Q f5 Qd2 f6 Qe8+ f7 Na6 b8N e2 d8Q+ Be7 d7 Bf6 b7 Rh5 Qc7 Rf5 d8N Ne7+ Kh7 Rf3 g8B Bh8 f8Q Qdd7 Bf7 Nc6 Qd5 Na5 Nd1 Bec3 Qce5 Qaa4 Qg8 Qd4 Ndc6 Ra7 Rg1 h1B Ba1 Bg2 Rh1 Ra8 Na7 h2 Qb5 Qde7 Qb2 Bch3 Qg6 Qed6 Bc4 Qdd7+ Qf7 Be6 Bb5 Bgh3 Nbc6 Bc4 b8Q Bb3 Qc8 Bd5 Nb8 Bb3 Rg1 h1B Qcc5 B1g2 Rh1 Be6 Qfg7 Bf7 Qg8 Qdc8 Qcd5 Qcd7 Qe7+ Qf6 Ne3 Nc5 Qbd2 Bb4 Nd1 Nc4 Nac6 Ra6 Bc3 Ra1 Qb2 Na6 Na7 Na5 Qec5 Qfd6 Bg7 Bc3 Qf5 Qb6 Qce5 Qbd4 Qh5+
1RB4q/1n3B2/B3Q2Q/nrbN1KQb/q1R4q/1kp1QNq1/3r1b2/2B3qR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 f5+ Ke5 a5 g6 a4 d6 a3 d7 f3 b6 f2 d5 f4 g7 h3 b5 f3 d6 h2 b7 a2 b6 h4 Qd2 h3 e4+ Kb3 Kf5 c4 e5 Nc6 b8R Nh6+ Kg6 Qh4 d8Q Na5 g8B Bg4 e6 Qg3 e7 Bh5+ Kf6 Nf5 d7 Nd6 e8B Ndb7 Be6 Bc5 Bd3 f1Q Qe3 f2 Qh6 Qd1 Qe7 f1Q+ Nf3 Qfg1 B8f7 Rd8 Nc3 Bf2 Nd5 c3 Rc8 Rb8 Ba6 Qd4+ Kf5 Qdh4 Bb2 Qa4 Rb1 a1B Bc1+ Bb2 Qeg5 Qf1 Rc4 Qfg1 Ra1 Ba3 Qe3 Bc5 Ra2 Rg8 d8Q Rg4 Rc2 Rd4 Qdg5 Rd2 Bd7 Qh4 Bc8 Qgg3 Re1 h1Q Rb2+ Ka3 Rf1 h2 Qhe6 Qhg1 Qeh6 Nd8 b7 h1Q Qhe6 Qd4 Rd1 Qhh4 Qeh6 Qh8 Rf1 Ra8 b8Q Ndb7 Qbe5 Rb8 Q5e4 Q1h2 Rh1 Qhg1 Rb6+ Ka2 Rd6 Kb3 Qee6 Nd8 Rd7 Rb5 Ra7 Ndb7 Ra8 Qg8 Rb8 Qd8 Qeg6 Qh8 Qge6
B7/1bqR1K1R/1b3nNQ/b1Q1B2q/1R1B1brp/1r5k/R1bQn3/5NrB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Ke7 g6 Kf6 g7 Kg5 b6 Kh4 e7 h2 e8B c3 b7 c2 b5 a3 d6 a2 d5 Be7 d7 Bb4 d6 Qa5 d8R Nd7 b8R Nf8 d7 Bb7+ Qd5 Ng6 b6 Nf6 Bg2 Rg8 Bb2 c1B Nh3 Qa7 Qc6 Ba5 Bd4 Be3 Nd2 Bg1 Rb1 a1B Rb4 Bf2 Rbc8 Rb8 Nf1 Bc3 Bf7 Bd2 Bd5 Bfe3 Rc7 Bc1 Rg1 h1Q Qc5 Qh2 Bh1 Bf2 Ke2 f3+ Kd3 Nf4+ Kc4 Ne2 Rg2 f4 Be4 Bg1 Bd5 f2 Bc6 f3 Nf4 Ne4 Kd5 Nf6+ Ke6 Be3 Ng6+ Kh3 Be4 Bf4 Kf7 h4 Bc6 Qg3 Bd5 Qg5 Be4 Qh5 Bd5 Re8 g8Q Re5 Qh7 Rg5 Qh6 Rg4 Ne3 f1R Rh8 f2 d8Q Ng8 Rh7 Nf6 Rd7 Re1 Bc6 f1B Rf2 Bg2 Nf1 Be4 Rg2 Bc2 Be4 Bc8 Ba8 Qc7 Rf2 Ba6 b7 Rb1 Rg2 Rb3 Rf2 Rc8 b8B Bb7 Qde7 Rg8 Qe3+ Ng3 Qd2 Ne2 Ba1 Qc8 Bbe5 Qc7 Rg2 Bd4 Qe7 Bdb6 Qc5 Re8 Bed4 Ree3 Be5 Reg3 Rf2 Rg2 Bad4 Rg1 Ng3 Bd1 Qd3 Nc1 Ra2 Ne2 Qd2 Bc2 Nf1
R2b1k2/2B5/1N1nn1Nq/bR4Nr/2Bbp3/Q1n3K1/2bNQ1RB/1qbB2r1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 h5 d4 a5 b4 e5 f4 c5 Kf2 c4 b6 h3 f5 h4 b5 h2 d6 a4 d7+ Kf7 b7 a3 g5 c3 f6 c2 b6 h3 d5 a2 d6 e3+ Kg3 e2 Bf4 c1B Nd2 Rh5 Ngf3 Nh6 Rg1 h1Q Rg2 Na6 b8R h2 b7 Be7 g6+ Kf8 f7 Nc7 Ng5 Ne6 Qb3 e4 Qa3 Qb6 d8B Bd7 Bc7+ Bd8 Be5 Ba4 d7+ Qb4 Bf4 Bc2 g7+ Ke7 f8N Nf7 g8B Nd6 Rb1 a1B Rb2 Qb6 Rb5 Bd4 Rc8 Ra7 Ra8 Qc6 b8N e1B+ Kg4 Qg1 Be2 h1N Bh2 Ng3 Bd1 Ne2 Bf7 Nc3 Ng6+ Kf6 Bg8 Kg7 Bf7 Ra4 Bg8 Rb4 Bf7 Rb1 Bg8 B8f6 d8Q Qb6 Qc8 Bd8 Nd7 Ra1 Qca6 Qe3 Nh3 Qh6 Ng5 Rb1 Rc5 Qb3 Nb6 Ra1 Qe2 Qb1 Nh4 Kf8 Rb5 Nf4 Bc4 Ne6 Ndf3 Na4 Kh3 Ba5 Nd2 Nc3 Kg3 Qa2 Qe3 Bb2 Bde2 Rg1 Bd1 Qb1 Qe2 Bc1 Ng6+
5Q1B/q1q3Q1/3kb2N/p2n1BQ1/1b4N1/Bb2Qb1N/r2Rb3/1KBRq1nr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 a5 Kc2 c5 b4 f5 e4 h5 g4 h3 d6 f3 e5 f4 g5 c4 d5 c3 b6 h4 b5 h2 e6+ Ke8 e7 Kd7 g6 h3 g7 f2 b7 f3 b6 Nf6 g8N Bg7 Bd3 f1Q Na3 f2 Ra2 Nc6 b8Q Bf8 b7 Qc7 Nh6 Nd4+ Kb1 Qe1 Nc4 f1B Rd2 Nf3 Ne3 Be2 Neg4 Qc5 Qa7 Rb8 Qb3 Qc7 Qb2 Qf2 Qe3 c2+ Ka2 Rh7 Qg5 Qa7 Bf5+ Ke8 Qe5 Be6 Ka1 Rd8 b8B Kd7 Qg7 Rh8 Qe3 Rc8 Ba3 c1Q+ Ka2 Qe1 Qeg5 Bd1 Kb1 Bb3+ Bc1 Qd8 Qe3 Rc2 Bc7 Ra2 e8Q+ Kc8 d7+ Kb7 d6 Kc6 Qeg6 Nd5 Bb6 Qdc7 d8Q Be7 d7 Bb4 Qgg5 Kd6 Bd4 Rh7 Ne2 Rh8 Rg1 h1B Nf4 h2 Nh3 Bg2 Qe8 h1B d8B Bf1 B8f6 Bhg2 Bb2 Be2 Ba3 Rh7 Rf1 Ng1 Qeg8 Bgf3 Q7f8+ Kc6 Bh8 Kd7 Qfg7+ Kd6 Qc8 Qh4 Rfd1 Qe1 Ng8 Rh4 N8h6 Rh5 Nhf2 Rh2 Nh3 Rh1 Qcf8+
1R1Qn2r/2NB2b1/5Q2/p1q2NB1/1q1nR2r/1nrN2Nk/2bQ1r2/r1R1KR2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 b4 f5 g4 a5 e5 c5 g5 h3 d6 Ke6 g6 h2 b6 f3 b5 c4 g7 f4 b7 Kf5 b6 Kg4 d7 c3 d5 c2 d6 h4 e6 h3 e7 Nf6 e8N Qc7 g8R+ Bg7 d8Q Nc6 b8R Nd4 b7 Qc5 Qd2 Bf5 Nc7 Ne8 d7 Qb4 Bb5 f2+ Kf1 Ra6 Qf6 Rc6 d8Q Rc3 Na3 Kg3 Nc4 Rh4 Ba3 c1N Nb2 Bc2 Nd3 Ncb3 Ne2+ Kg4 Ng3 Qc5 Rg1 h1R Bb4 h2 Rc1 Kh3 Rh8 Nf3 Ke2 f1R Ba3 Rd1 Rf1 Nfd4+ Kf2 f3 Bd7+ Qf5 Be7 Re1 Bb5 Qc5 Rh5 Qb4 Re5 Rh8 Bc6 Re4 Re6 Reh4 Bd7 Rg1 Ke1 h1Q Bd6 Rg2 Bf4 Rf2 Bg5 Qh2 Ne2 Qhd6 Ng3 Qdc5 Re4+ Kg2 Nd5 Kh2 Ne7 Kg2 Nef5 Kh2 Be6 Kh3 Bd7 Na1 Nb2 Rb3 Ra8 Rh2 b8N Rg2 Na6 Ra3 Nh1 Rg3 Rf2 Nab3 Rb8 Ra2 Nc7 Ra1 Rg2 f2+ Kf1 Ne2 Rg1 Rc3 Nd3 Ned4 Nhg3 Ne6 Ke2 f1R Rc8 Rff4 Rb8 Ned4+ Ke1 Rf2 Rf1
1N1N1qr1/1R5Q/1pR1b2R/k1nQNB2/1brB3K/1rRq4/r2B1rBn/q7 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 g4 h5 f4 c5 Kf2 Kc7 d4 Kb6 f6 e5 g5 e4 a5+ Kc7 d6+ Kc6 d5+ Kd7 f7 c4 f5 h3 Kg3 b6 g6 e3 g7 c3 f6 c2 a6 h2 a7 e2 Kh4 e1R Bg2 b3 Ne2 b2 Bd2 c1R Ra3 Qe7 Rc3 Rf1 Nd4 Rf5 Nc6 Nh6 g8Q Na6 Qh7 Rg8 Na3 b1R Nc4 Rf2 Be4 Nc5 Bf5+ Ne6 Qf3 Ng4 Qe4 Rb3 Nb8+ Kd8 d7 Kc7 d8R Nc5 Qg2 Kb7 Ne5 Be6 Rd6 Rc2 Rc6 Qe8 Rh3 Rc4 d6 Qc8 Rc1 h1Q d7 Qf1 Qd5 Qd3 Rc3 Bd6 f8R Nh2+ Bf4 Qd8 Rf7 Qf8 Rg7 Ng4 f7 Nh2 Kg5 h4 Bd2 Ng4 Rh2 h3 Rh1 h2 Kh4 Qc8 f8B Qd8+ Be7 Qf8 Bf6 Be7 Re1 Bd6 Re3 h1Q+ Rh3 Qhb1 Nf3 Qh1 Bd4 Nh2 Ne5 Qg1 Rg6 Qa1 Rh6 Na4 Rg3 Bb4 Rg7 Nc5 Na6 Rb8 a8B+ Ka7 d8N+ Rb7 Bg5 Rf7 Nb8 Ra2 Bb7 Rf6 Bd2 Rf7 Nbd7 Rf6 Ba8 Ka6 Nb8+ Ka5 Rb7 Rf7 Bg4 Rf1 Bf5 Rf2 Rf7 Rbb2 Qd6 Qe1 Rc8 Na6 Bg2 Qa1 Rb7 Rb3 Qd5+ Nc5 Rc6
2r1Q1N1/bNQqbnQp/KQ3r2/5Rbq/6k1/3Rbb1R/2NnN1BB/4n3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 f4 e5 b4 c5 g4 a5 d4 c4 b6 e3 f5 e4 g5 h3 d6 h2 g6 c3 f6 Ke6 d5+ Kf5 f7 c2 g7 a4 b7 a3 d7 a2 d6 Ra5 b5 Kg4 b6 Qc7 d8R Ra6 d7 Nf6 g8N Be7 f8Q Nc6 b8Q Ne5 b7 Nf7 Qd4 Re6 Bb2 c1B Na3 Ra6 Rb1 a1B Qb6 Qd6 Be5 Bd4 Q6c7 Ba7 Rb5 Rb6 Nc2 Rc6 Ke1 e2 Qg7+ Bg5 Bg2 Rb6 Kf2 e1B+ Ke2 e3 Rc5 Qe6 Kd3 Bf2 Ne2 Ne4 Rb5 Qf5 Kc4 Rf6 Qa8 Bg1 b8Q Bb7 Bf4 Bc6 Qbb6 Bb7 Rc5 Nd2+ Kb5 Bf3 Ka6 Qe6 Rf5 Qc6 Ng3 e2 Qac8 e1N Ne2 Qd6 Qa8 Be3 Qe4 Bf8 Qe8 Be7 Rf1 h1Q Bh2 Bd5 R1f3 Qc6 Rh3 Bf3 Ra8 Qd6 d8N Qd4 Nb7 Qd7 Bg3 Qh2 Rd8 Qh1 Rh6 Qh5 Bh2 Qc6 Rdd5 Qd7 Rd3 Re6 Qef8 Qg6 Rh3 Rf6 Qfb8 Qh5 Qbd8 Ba3 Ne7 Re8 Ng8 Bf8 Qe7 Rc8 Qed8 Be7 Qe8
qk2q1bb/B3pq1n/3n1QRQ/Q2QrB2/r2rN2B/1r2N2r/8/1NK3RN b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 Kd2 h5 b4 c5 f4 Kc7 f5 h3 d6+ Kb7 d7 c4 g5 a4 g6 h2 b6 h4 b5 h3 g7 a3 f6 a2 d5 Ra6 d6 Qe8 d8Q Qc6 d7 Ra4 f7 Nf6 g8N Na6 Bd3 Kb8 b7 Nh7 Qh5 Nc7 Nf6 Ne8 Qh6 Bg7 f8Q Nd6 Ne2 c3+ Kd1 e3 Qa5 Rh4 d8Q Rd4 Ng3 Qe8 Rg1 h1Q Nd5 h2 Qff6 e2+ Kc2 e1Q Ne3 Qf1 Bf5 Rg8 Bd2 Bh8 Be1 Rg5 Kc1 c2 Qd7 Qd5 Nh1 Qf4 Qc6 Be6 Bh4 Bg8 Qc5 Rh5 Rg6 Qdf7 Qd5 Qf3 Bc8 Re5 Bf5 Qe4 Qd2 Kc7 b8N Qg2 Nd7 Kc8 Qb3 Qa8 b6 Kb7 Nc5+ Kb8 Kb2 c1R b7 Rcc4 Ne4 Rb4 Kc1 Rbb5 Qd5 Rb3 Nhf2 h1R+ Qe1 Rh3 Nh1 Ka7 b8B+ Ka6 Bc7 Ka7 Bb6+ Kb8 Qea5 Rg3 Nbc3 Qac6 Kc2 Rh3 Rag1 Qa8 Nb1 a1R Kc1 Raa4 Ba7+
R2nBBk1/2n2q1q/2r1NR1b/1Q3nRb/2B4r/1Q2Q1bR/r2p1Q2/N2n1K2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 g4 e5 f4 a5 b4 h5 g5 d5 b6 e4 b7 h3 g6+ Kg7 c5 e3 b5 h2 b6 e2 c6 d3 c7 a4 Qd2 a3 Qe3 h4 Nh3 a2 Ng5 d4 Na3 h3 Nc2 Ne7 f6+ Kg8 f5 Nd5 g7 Qe7 Ne6 Ra6 Ba3 Nc6 b8Q Qf7 b7 d2+ Kf2 Bd7 c8B Be8 Bd7 d3 Qbg3 Nd8 b8Q Rc6 Qb5 d1N+ Ke1 Kh7 g8R Nc7 Rg5 Bg7 Be7 Kg8 Bf8 Rh4 Qgf3 Nb2 Qfd5 d2+ Kf2 e1B+ Ke2 Bg3 Qdb3 Bf4 Kf2 Be5 Bc4 Bg3+ Kf1 Nd1 Be2 Qe7 Bc4 Bh5 Be8 Qf7 Qbb6 Qg6 Q6b5 Bh6 f7+ Kh7 Rc1 a1R f6 Ra2 Na1 Qg8 Rc3 Qg6 Rg1 h1N Rg2 h2 Rf2 Kh8 Rff5 Nhf2 Rf4 Ne4 Rf3 Nd6 Rd3 Nf5 Rd6 Be5 Rh3 Nb7 Rd8 Bg3 Ra8 Qg8 Be7 Nd8 f8Q Kh7 f7 Qg6 Ba3 Qf6 Qfc5 Qg7 f8R h1Q+ Qg1 Qd5 Rf6 Kg8 Qge3 Qd7 Qf2 Qf7 Qce3 Qgg6 Bf8 Qh7 Ng7+ Qf7 Ne6+
3k1nqQ/1bq5/3n2R1/1q3nb1/r3BN2/r1Rr1N1Q/1R1p1RKn/Q1Q1B1N1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 a5 f4 h5 Kf2 d5 c4 e5 g4 h3 g5 d3 f6 e4 g6 h4 c5 e3+ Kf3 e2 f5 a4 b6 d4 c6 d2 c7 a3 b7 d3 b5 a2 b6 h2 g7 h3 Bg2 Nh6 g8Q Ra4 Qgb3 Nd7 b8Q Nf7 b7 Nd6 f7+ Ke7 Qa8 Bh6 b8R Qg8 f8N Bg5 Ne6 Nf8 Nf4 e1N+ Kg3 Nf3 f6+ Kd7 f7 Bb7 c8R Rh7 Qf1 d1Q Nd2 Qc2 Rc3 Rg7 Rb1 a1R Rb2 R1a3 Re8 Rh7 Re6 Rh8 Qa7 Kd8 Rg6 Rh7 Qc4 Qb3 Qe3 Qb5 Qa2 Rh4 Qa1 Rg4+ Kf2 Rg3 Qfe1 Nh4 Qe6 Nhf5 Be4 Re3 Nge2 Rg3 Rf1 h1Q Nf3 h2 Neg1 Rh3 Be3 d2 Qec1 Rg3 Re1 Rh3 Re2 Rg3 Kf1 Rh3 Bf2 Rg3 Nh4 Rd3 Be1 Qf3+ Rf2 h1N Qb3 Qg3 Nhf3 Qh2 Qe6 Qhh7 Kg2 Nhg3 Qe5 Nf1 Qh8 Qhg7 Qh3 Nh2 Qg4 Qd4 Qh3 Qdc4 Qcb1 Ne6 Qc1 Qc7 f8Q+ Ne8 Qc5 Ned6 Qe5 Nf8 Qeh8
kqB1B1bQ/1r1N2b1/8/1qQnBqN1/n2n2N1/4R1q1/1pr1QQ1b/3RN2K b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 b5 f4 h5 Kf2 e5 g4 c5 Kg2 Kc7 f6 Kb7 a5 b3 f7 c4 g5 b2 d6 b4 g6 c3 g7 b3 d5 c2 d7 e4 d6 e3 f5 e2 f6 e1Q Nf3 Ra7 a6+ Ka8 Ra3 Rb7 a7 Nc6 Nbd2 b1N Qe2 b2 Ng5 Nd4 Re3 Nc3 Ndf3 Ne7 g8N Ned5 Nh6 Bg7 f8N Na4 f7 h3+ Kh2 h4 Ng4 Qda5 d8Q Qb5 Qa5 Be6 Nd7 Rc8 f8Q Bg8 Qf5 Qc3 Ne1 Qcc5 Bd2 c1B Qff2 Qcb4 Rg1 Rc2 Kh1 h2 Bh3 Qa3 Bb4 Qad3 Bc3 Qf5 Qb6 Bd2 Qc5 Bc1 Rf3 Bf4 Re3 Bfe5 Nb8 Bg3 d7 Bf4 d8Q Bd6 Nd7+ Bb8 Kg2 h1Q+ Kf1 Qhf3 Qf6 Bf8 Qh8 Bg7 Rh1 Q3f4 Kg2 Qd6 Rg1 Qg3+ Kh1 Bbe5 Nef3 Bb8 Rd1 Bd6 Ne1 Bde5 Bg2 h3 Be4 h2 Bd3 Qf8 Bg6 Qb8 Bh5 Qf4 Be8 Qf5 Ba5 Bd6 Bd8 Bc7 Bf6 Bd6 Be5 Bc7 Kg2 h1Q+ Kg3 Qh5 Kg2 Nab6 Bf6 Bf4 Be5 Qh3+ Kg1 Bh2+ Kh1 Na4 Qcc4 Rb6 Qc5 Kb7 a8B+ Ka7 Bb7 Qg3 Ba6 Ka8 Bc8 Rb7 Qff3 Qb6 Qfg2 Qb5 Qgf2
Qr1r1r1R/r2b2K1/qRNk1n1B/4N3/b2bR1N1/1Bq1Q3/1p1B2Rn/B2q4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 b5 Kh5 c5 f4 h6 Kg6 b3 a4 b2 d4 h5 g4 b4 g5 c4 d6 b3 a5 c3 f6 h3 d5 c2 f7 h2 f5 e4 a6 e3 f6 h4 a7 e2 Na3 e1Q Qf3 b1B Nc4 h3 Qe3 Qea5 Bd2 Qac7 Ra4 Nc6 Nf3 Bg7 f8R Qe7 f7 Rb8 a8Q c1R+ Bd3 Rb7 Bc2 Bd4 Rd1 h1Q Nh2 Qe1 Ng4 Nf6 Kg7 h2 g6 h1R Ra6 Rf1 Rb6 Qe2 Re1 Rb8 Rg8 Qe6 f8B Qd1 Nce5+ Kd8+ d7 Rf3 Bd3 Bc2 Bc4 Ra1 Re2 Ra7 Re1 Rh1 Rh8 Qed6 Re2 Qa3 Re1 Qb7 Re2 Kc7 d8N Bd7 Rg2 Qba6 Rh4 Nb4 Ndc6 Nd3 Rh8 Ne1 d6+ Kc8 Bf7 Rff1 Bc4 Nf3 Bg8 Nh2 Rh4 Be6+ d7+ Kc7 Rh8 Qc5 Re2 Qc3 d8B+ Kc8+ Bde7 Kc7 Ba3 Bc8 Bb2 Bd7 Ba1 b2 Bb3 Rd8 Qh6 Rf5 Re4 Rhf1 Qe3 R1f2 Be6 Ba4 Bb3 Rg5 Kh6 Rgf5 g7 Re2 g8R Rb8 Bg7 Kd6 Kg6 Rf3 Bh6 Ref2 Qg5 Rd3 Kg7 Kc7 Rf4 Be6 Re8 Ng8 Rb5 Be3 Ref8 Rdd8 R8f7+ Bd7 Rb6 Bd4 Re4 Kd6 Qe3 Rf1 Rf3 Rf2 Rg3 Rff8 Rg1 Nf6 Rg2
R1q1B2n/Q1rn2K1/nr2b1b1/QNbR4/1Q1B2Q1/n1R1Rr1p/3qk3/3NB3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 c5 g4 a5 b6 h5 b5 a4 e4+ Kb4 b7 c4 g5 a3 b6 c3 d6 h3 d7 h2 d5 a2 g6 c2 g7 f3 d6 f4 Qd4+ Kb3 Be3 c1N Na3 h4 Ne2 f2 Nb5 Kc2 Nec3 h3 Qb4 f3 Nd1 Nh6 g8Q Rh7 Bd4 Na6 b8B Nb3 b7 Nbc5 Qg4 Nf7+ Kf5 Be7 e5 Nh8 e6 Rh6 Bc7 Ra7 b8Q Rb7 Be2 f1B Ba5 f2 Qa7 Rc7 Bc4 Qe8 d8Q Nd7 Bd5 Kd3 Bc6 Rg6 Rc1 a1N Rc3+ Kd2 Rg1 h1Q Rgg3 Qh2 Rge3 Bf8 e7 Nc2 Re5 Rh6 Rd5 Na3 Kg5 Be2 Kf5 f1R+ Kg5 Qf7 e8R Rf3 Ree3 Ke1 Red3 Rg6+ Kh5 Qg8 Qdg5 Bf1 Qd8 Ke2 Qdg5 Ndb8 d7 Bc5 d8R Be6 Be8 Nd7 Ra8 Qf4 Q5f5 Qd2 Qfg5 Bf5 Qd8 Rb6 Qdg5 Bg6+ Kh6 Qe6 Kg7 Qc6 Q5h5 Qb7 Qhf5 Qc8 Re5+ Qe3 Rb3 Bg2 Qa4 Bd6 Qf8 Be7 Rh5 Qf4 Be1 Qd2 Qa5 Bd6 Qg8 Bc5 Qc4 Bh1 Qcb4 Bg2 Qf5 Re3 Rbc3 Bd5 Qg4+ Rf3 Rf5 Bdf7 Rd5 Be6 Re3+
QB1r4/N2kRrn1/6N1/1N2Q3/qb4bn/1qB1rp1Q/b1Qb3R/n4BBK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 g4 f5 Kg2 c5 b4 a5 e4 c4 d4 c3 b6 a4 g5 c2 b7 a3 d6 a2 b5 Qc7 d7+ Ke7 d8N Nh6 d5 Nc6 b8B Kd7 d6 Qb7 e5 Nd4+ Nf3 Ra3 g6 Ne6 g7 Re3 g8Q Ng7 Bd2 c1B Bc3 Bd2 Rh2 h3+ Kh1 h4 b6 Qa7 b7 Qa4 Qh7 Qb3 Ne1 f3 Na3 f2 Nc6 f4 Nb5 Nf5 Qc2 f3 Rc1 a1N Ba7 Be7 b8B Rd8 Nd3 Bf8 Bg2 f1B Nf4 Bc4 Re1 Qa4 Bc5 Ba2 Nca7 Qb3 Bf1 Qa4 Ng6 Qb3 Rg2 Qa4 Kg1 h2+ Kf2 h1Q e6+ Ke8 e7 Re4 d7+ Kf7 Nd4 Re8 Nb3 Ke6 Ba6 Re5 Re4 Qb1 Bf1 Qb2 Kg1 Qba3 Na5 Q3b3 Ree2 Re4 Nb5 Re5 Nc6 Re4 d8Q Bd7 Qc8 Rd8 e8Q+ Be7 Be3 Rf4 Qa6 h3 Qa8 h2+ Kf2 Bc8 Qh3 h1R Rh2 Bd7 Bg2 Re1 Bf1 Bc8 Kg1 Bd7 Qf8 Bb4 Nca7 Bc8 Kh1 Bd7 Qg3 Nh4 Qc5 Rf7 Bg1+ Be3 Ne5 Bd2 Qe3 Ke7 Qh3 Bg4 Ng6+ Kd7 Qg5 Qa5 Re6 Re3 Qe5 Qaa4 Re7+
1KRn1n2/1Q1rk1r1/2R4B/2BbB1n1/2bbR1Q1/1Nq1pR1r/BQq1r3/1N6 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 c5 Ke3 a5 Kf4 h5 Ke5 c4 b4 e6 g4 c3 f4 a4 d4 a3 f5 c2 g5 h3 d6 a2 f6 h4 f7+ Kd7 d5 e3 b6 h2 b5 h3 g6 e2 b7 e1Q+ Ne2 Qe8 g7 Nh6 g8Q Ra7 b6 Qc3+ Nd4 Qd8 Bc4 Qc7 Re1 h1N Rf1 h2 Qg7 Nf2 Qdg4 Nh3 Rf3 h1B Qf6 Be7 f8B Ng5 Ba3 c1R Bc5 Qc2 Nb3 Rg1 Qg7 Qc6 Qf7 Kd8 d7 Rg3 Qg7 Rh3 Qf7 Rg8 Qh7 Rg7 Qh8 Na6 b8Q Nc7 b7 Bg2 Qa8 Bh1 b8B Ba6 Qb7 Bb5 Ba3 Bc5 Bb4 Bg1 Bbc5 Bg2 Na3 Be3 Rc1 a1R Nb1 R1a2 Re1 Bg1 Re4 Rb2 Nd4 Bf2 Ba2 Bc4 Nb3 Qc3+ Bd4 Qa4 Kd6 e5 Be3 Nce6 Bc5 Qaa5 Kc6 Nhf7 Bbd6 Qc2 Bb8 Rg8 Bh6 Qac3 Qg7 Bd4 Kb6 Ra5 Bd6 Rb5+ Ka7 Nf8 Kb8 Bh1 Re1 e4 Be5 Rb6 Qh8 Rd6 Qg7 Nge6 Rc1 Ke7 d8R+ Nc7 Qh8 e3 Rc8 Nd8 Qf6+ Ke8 Qfg7 Rd7 d6 Nce6 Rc6 Ng5 Rcf1 Rh2 Rf4 Be4 R1f3 Bed5 Re4 Rh3 Qg2 Ngh7 Q7g4 Rgg7 Qd2 Q2d3 Qc1 Re2 Qb2 Qdc2 Ba7 Rc7 d7+ Ke7 Bb6 Ng5 Ba7 Nde6 d8R Rd7 Rdc8 Nd8 Bc5+
1k4r1/bN4qR/bQ3n1b/2KB2QN/1Q2b2p/1rB2nRR/q3R2r/2Q1nN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 Kc7 d4 f5 b6+ Kb7 e5 h5 d6 h3 d7 c4 g5 f3 Ke3 h2 b5 c3 d5 a4 Kd4 h4 d6 f2 e6 f4 e7 a3 e8R f3 g6 c2 g7 a2 Bb2 c1R Nd2 Na6 Re2 Rb1 Bc3 Rb3 Qc1 Nf6 g8R Qc7 d8Q Kb8 b7 Qg7 d7 Nb4 Nh3 Nd3 Nf4 Ne1 Bg2 f1N Nh5 f2 Bd5 Raa3 Rb1 a1B Qe7 Ra7 d8N Ra2 Kc5 Rc2 Rb2 Bf5 Ra2 Be4 Ra3 Rcb2 Rg1 h1B Rg3 Nh2 Nf1 Nhf3 Ra7 Bg2 Ra3 Bh3 Ra7 Bc8 Rh3 Qg4 Rg6 Rg8 Rg5 Qd7 Rgg3 Bh6 Qg7 Rd2 Qg5 Qg7 Ra6 Bb1 Rae6 Be4 Re7 Qg6 Rh7 Qg7 Ba5 Be5 Bc3 Bd4+ Kc6 Nc2 Re1 Ka7 b6+ Ka6 b8Q Re2 b7 Ba7 Nh2 f1Q Qd1 Qg2 Nf1 Qf2 Qdc1 Rd2 Re3 Nce1 Qd6 Ra2 b8Q Qb2 Qe6 Qa3 Qbd6 Rh2 Re2 Qa2 Qb8 Bc5 Qb5+ Ka7 Qb4 Ba6 Nb7 Ka8 Qd6 Ba7 Qdc5 Kb8 Qcb6 Rf2 Kd6 Rh2 Kc5
q2bn1N1/nRQqrN2/2R1b3/2Brr1Rk/qpQbBR2/8/1B5K/b2Q1Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 c5 g4 e5 f4 b5 Kf2 h5 Kg2 b3 f6 Kg6 g5 b4 f7 h3+ Kh2 h4 a5 e4 a6 c4 a7 e3 d6 c3 f5+ Kh7 f6 Kg6 d7 c2 d5 b2 d6 e2 Bg2 e1B Nf3 Qc7 d8Q Qc6 d7 Be7 f8B Bf2 f7 Qa4 Qf1 Nf6 Rg1 Rh7 Qc7 Bd8 Nc3 b1R Ne5+ Kh5 g6 Bd4 g7 Ne8 g8Q Nc6 Bb2 Rd1 Nd5 c1B Bc5 Rd2 f8R Re7 Ra3 Rb8 a8R Na7 Rf7 Rb5 Rf4 Re2 Nf7 R2e5 Rc3 Ra5 Ba1 Bb2 Rb8 Rb5 Rb7 Ra5 Kh1 h2 Be4 Rb5 Kg2 h3+ Kg3 h1Q Rc1 Ba3 Bb2 h2 Kh3 Ra5 Rgg4 Qg1 Rc3 Qf2 Rc1 Qd2 Kg3 h1Q Rc4 R7e6 Ne7 Qdd1 Rc2 Qhf3+ Kh2 Rb5 Bb6 Rbd5 Rc6 Qdd3 Bc5 Qdb5 Qf8 Qbd3 Ng8 Re7 Bc3 Qdb5 Qc4 Bc1 Bb2 Bce3 Bc1 Ba1 Bb2 Bd4 Qa5 Bb6 d8Q Be6 Qd7 Bd8 Qdc7 Qa2 Qa4 Qfa3 Qd1 Qaa4 Ra6 Qd7 Rc6 Q2a3 Ng5 Nc8 Rf1 Q4b3 Qf6 Qa6 Nf7 Qa8 Qf2 Qba3 Qfe2 Q3a7 Rff4 Qa4 Qef1 Na7 Rg5#
Kn6/1rN2bbn/4N2n/R3QB2/pqk1B1RR/3N3r/2r2QNb/Br4Rq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 h5 d4+ Kc4 b4 c5 g5 a5 b6 f6 d6 h3 g6 h2 d7 a4 b5 h4 g7 h3 d5 f3 b7 f2 d6 Ra5 b6 Ra7 Qd4+ Kb5 Kd5 f5 e4+ c4 e5 f4 e6 f3 e7 Ra6 e8N Nh6 g8B Qe7 d8N Qe1 d7 Qe7 Bh7 Qe2 Bg2 f1N Bf5 f2 Bb2 c3 Bge4 c2 Ne6 c1B d8R Rg8 Nf3 Ng3 Nbd2 f1R Qf2 Bg7 Nh4 Qg4 Ng2 Ra7 Nc4 Nh5 Ne5 Bf4 Nd3 Rb1 Rg1 h1R N8c7+ Ka5 Ra3 h2 Ba1 Nf6+ Kc5 Qh4 Rd4 Nh7 Rc3 Bd7 Rcc4 Rc8 Rd5 Be8 Rcd4 Nc6 b8R Bf7 b7 Bfe5 Ra8 Nb8 Rd8 Bg3 Rg8 Qe7+ Kd5 Qb4 Rc4 Bf8 Rg4 Bg7 Ne8 Rc6 Nc7 B3e5 Rd4 Rc2 Rc4 Na6 b8Q Rb7 Kc6 Bg3 Kd7 B3e5 Kc8 Bf4 Nd5 Kb5 Qe5 Nb8 Rc7 Nc6 Ra5+ Kc4 Rd7 Nb8 Ndc7 Re1 Rd8 Re3 Rh8 Rh3 Rb1 Re1 Rd1 h1Q Rc1 Re2 Rf1 Re1 Rg1 Nf6 Rh7 Bh2 Rh8 Rb1 Rh7 Nhg8 Rhh4 Nh6 Qa7 Rb5 Qb6 Nh7 Kb7 Be8 Ka7 Bf7 Qf2 Rb7+ Ka8
2NR3B/1k1QN1nQ/q1n3B1/1q1NB1rp/1N3n1q/1r2Bn1b/1rQb4/3R3K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 h5 Kg2 f5 b4 a5 e4 c5 d4 Kc7 b6+ Kb7 g5 c4 b5 a4 e5 a3 g6 c3 e6 a2 e7 c2 e8N Ra3 d6 Rf3 d5 Nd7 g7 Ndf6 d7 Ka8 d6 Rb3 Ne2 Kb7 Ng3 Ne7 g8Q Nc6 Bd3 Bh6 Qh7 Rg8 Nc3 Rg5 Be3 c1N Nd5 Ne2 Qc2 h3+ Kh2 f3 Rhd1 f4 Kh1 f2 Bg6 f1N Nf5 h2 Nfe7 f3 Rd3 f2 Rad1 Kb8 b7 a1Q Rd4 Qb6 d8N Bh3 d7 Nf4 Nd6 Qaa6 Ndc8 Ne8 Qe4 Bg7 Nc3 Na7 Ndc6+ Kc7 b8B+ Kb7 d8Q Be6 Bd6 Nd2 Nb4+ Nc6 Rd3 Bd4 Be5 Nf3 Bh8 Ng7 Qe8 Be5 Rd8 Bg4 Ncd5 Bc3 Rg1 f1R Qc2 Rfb1 Rd1 Bd2 Qd7+ Ka8 Qe8 Qba5 b6 Q5b5 Qd7 R1b2 b7+ Kb8 Qc3 Nh3 Kg2 h1Q+ Kg3 Qe1+ Kg2 Qf2+ Kh1 Nf4 Qc2 Bh3 Bf5 Qh4 Bg6 Qc5 Nd6+ Ka7 b8B+ Ka8 Ndc8 Qcb5 Bc7 Kb7 Be5+
q1k2n1B/2qr1qnn/1Q2bb1R/1qp2Nb1/2BQN3/r1Q1QR1B/5N2/4NK2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 h5 b4 f5 g4 a5 e5 c5 e6+ Kc7 g5 h3 b6+ Kb7 g6 h2 d6 h4 e7 h3 e8N a4 g7 f3 d7 f4 b5 a3 d5 a2 d6 Qc7 d8Q Rh4 d7 Qc6 Qe2 Rh7 Bb2 Qe4 Nd2 Qe7 Nf6 Ra3 Ng4 Nf6 g8B Bh6 Ne4 Bg5 Qe3 f2+ Ke2 Qe5 Nf3 Qc7 Ne1 Rf7 Rd1 a1B Rd3 Nh7 Bh8 Baf6 Qe7 Rg7 d8Q Be6 Qdd4 Nd7 Qg3 Kb8 b7 Ndf8 Rf3 Rf7 Bg2 f1N Ngf2 Ne3 Bf1 Nf5 Bg2 Ng7 Kf1 Bd7 Qee5 Be6 Qc3 Rd7 Qed4 Bg4 Bc4 Be6 Rg1 h1Q Qce3 h2 Bh3 Ka7 b8N Kb7 b6 Kc8 Nc6 Qg2+ Ke2 h1Q Ne7+ Kd8 Nf5 Kc8 Qec3 Qgh2 Kf1 Qb7 Rd3 f3 Qf4 Qa8 Qfe3 Qc7 b7+ Kb8 Bg4 Qh5 Rh1 Qe8 Rh6 Qf7 Nh1 f2 Bh3 Qc6 Rd2 Qc8 Rd3 Kc7 b8Q+ Kd8 Qb6+ Qc7 Qec1 Kc8 Rf3 Qa4 Q1e3 Qa8 Ke2 f1Q+ Kd2 Qg1 Ke2 Qgh2+ Kf1 Qb2 Nhf2 Qb1 Ba2 Qb5+ Bc4
1Br1BRrb/2R2b2/1N1bN1pK/n2n4/b5RQ/4Qr2/kN3qn1/1qQNQ3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 e4 Kc5 b4+ Kd4 d6 f5 d7 a5 b6 c5 b7 g3+ Kf3 c4 b5 c3 h5 g6 h6 c2 h7 g2 e5 a4 b6 a3 e6 a2 e7 Kd5 e8Q Ra7 d4 Ra8 Qde1 Nh6 Na3 Na6 b8Q Ng4 b7 Qf6 d8Q+ Bd6 Rh4 Nb4 Bb5 Be6 Qbc8 Ne3 b8N Bf7 Rg4 Rg8 Nh3 g1Q h8R Ng2 Nf2 Qf1 Be3 c1N Nc4 Nb3 Nd7 Na5 Rc1 a1B Nb2 Qg1 Qcc3 Rc8 Nfd1 Qf1+ Bf2 Qd3+ Q8e3 Qb1 Bg3 Qh4 Ke2 f3+ Kd2 Qh2 Qh4 f2 Qa3 f1B Rc7 f4 Qac3 f3 Qc1 Rg7 Rf8 f2 Be5 Rg8 Nb6+ Ke6 Bc6 Bb5 Be8 Ba4 Ke2 Qg1 Kf3 f1R+ Kg3 Rf5 Kh3 Qf2 Bf4+ Be5 Bg3 Rf3 d5+ Kf5 d6 Ke6 d7 Nd5 d8N+ Kd6 Nd3 Bd4 Ne6 Bc5 Rf4 Bh8 Kg4 Ba3 Kg5 Bc5 Rd7+ Kc6 Bh2 Kb5 Rg4 Bd6 N3b2 Rg3 Qh1 Rf3 Bf4 Kb4 Rc7 Bde5 Kh6 Bd6 Nc3 Ka3 Ncd1+ Ka2 Qhe1 Bc5 Ra7 Bb4 Bb8 Bd6 Rc7
B5K1/1Nk1q3/3rnqp1/b1B2QQ1/6B1/1Br3QN/b2qQnN1/1Rn1r1Rr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 Kd7 e4 f5 b4 a5 c4 f3 h4 a4 h6 f2 e5 a3 e6+ Kd6 e7 f4 e8B g6 c5+ Kc7 c6 a2 b6+ Kd6 b7 f3 b5 Kc7 h7 Bd7 b6+ Kd6 h5 Bh6 c7 Qh4 c8B Qg4 Na3 Ra4 Qe2 Qe6 Nc2 Nf6 Bf7 Nc6 b8N Ng4 b7 Bd2 h6 Rc4 Na6 Ba5 Ne3 Qe7 Nc5 Nd8 Ba3 Be6 Bg2 f1Q Rb1 a1N Nh3 f2 Rg1 Nb3 b8Q+ Kc6 Qb5+ Kc7 Nb7 Qc1 Bh1 f1Q Bc5 Qff6 Ng2 Re8 Bg8 Bf7 h8Q Ne6 h7 Rd8 Qd2 Rd6 Qg5 Qcf4 Qg7 Rc1 h8Q Nf2+ Ke2 Rc3 Qhh4 Qh2 Qhg3 d3+ Ke3 Nc1 Qf8 d2+ Qd3 d1R Qe8 Rc4 Qdf5 d4+ Kf3 d3 Bd7 Nd4+ Kf4 Rc3 Bc8 Ba2 Bb3 d2 Bce6 Qff7 Ke5 Rf1 Qb5 d1R Qa6 Rde1+ Qe2 Qd8 Bc8 Ne6 Bd7 Qde8 Bc8 Qc6 Bd7 Qe8 Kf6 Qd8+ Kf7 Qe7+ Kg8 Qf3 Bc6 Qf4 Bf3 Qd4 Bg4 Qdf6 Nh4 Qg2 Nd8 Qh2 Ba8 Qg2 Nb7 Qd5 Rg2 Rh1 Rg1 Qd2 Ng2
1Kbr4/nQNNB1k1/3QpNQq/1rn2nB1/3n1q1R/2bNR3/2q1B1Q1/5r2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 c5 Kf4 a5 Ke5 h5 g4 c4 d4 a4 b4 a3 f4 e6 f5 c3 b6 e3 f6 a2 b5 e2 b7 e1N d6 c2 b6 h3 d5 h4 d7 h2 g5 h3 d6 Ra3 Nc3 Ra8 Qd3 Na6 b8Q Rh7 b7 Nc7 Nf3 Qe7 d8Q Ra6 d7 Rc6 Be2 Bh6 Nb5 Qb4 Qa8 Rh8 b8Q Bg7 Qbb7 Rc5+ Kd6 Ne7 Rb1 a1R Rb3 Na6 Nc7 Nc6 Bf4 Rf8 g6+ Kg8 Qe4 c1Q Ne5 Nf3 Bg5 Qc2 Re3 Nfd4 Nd3 Rf1 f7+ Kh8 Qe7 Rd8 f8N Na7 Qg4 Bf6 g7+ Kg8 Qg1 Qba4 Qg4 Rb5 Qh5 Qac4 Qg6 Nc5 Qg2 Qb4 Qab7 Qbd2 Na6 Qdc1 Kc7 Be5+ Qd6 Bf6 Rg1 h1N Kb8 h2 Nc7 Ng3 Rh1 Be5 Be7 Ngf5 Bg5 Ndb3 Be7 Bc3 Bg5 Nbd4 Be7 Re8 d8B Q1d2 Bg5 Qdc1 Bde7 Rd8 Nd7 Q1d2 Bg4 Qf2 Be2 Qf4 Qe8+ Kh7 g8N Kh8 Ngf6+ Kg7 Rg1 h1Q Qh5 Qhh4 Rh1 Qh3 Qe8 Qh5 Rh4 Qh6 Qg6+
1nrQ3B/Qn3N2/pK1b4/4NB2/2bR1qr1/R1N1k1B1/rB1br2N/n1R4q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 d4+ Kf6 g4 Kg5 d6 f5 e5 c5 d5 h5 b6 a6 b5 c4 e6 c3 b7 c2 b6 h3 e7 h2 e8Q h4 d7 h3 d6 Qc7 d8B+ Nf6 d7 Rg8 Qe3 Bd6 Bb2 c1B Ra3 Bd2 Nc3 Rg7 Qd4 f3 Bd3 f4 Bf5 Re7 Qe3 Ne8 Qd4 Qc4 Bc7 Re3 d8N Be6 Nc6 Bg8 Ne5 Qf7 Bd8+ Qf6 Be7 Bc4 Bf8 Qf7 Bg7 Qf8 Bh8 Re2+ Kf1 f2 Ngf3+ Kh6 Rg1 h1R g5+ Kh5 g6 h2 Kg2 f1R+ Qf2 Rfe1 g7 Re4 g8R R1e2 Rg4 Qf6 Nf7 Qh4 N3g5 f3+ Kf1 Rf4 Qd4 f2 Nf3 Qg5 Kg2 f1N+ Qf2 Nd7 b8N Ne3+ Kg3 Nc2 b7 Na1 Qa7 Qf6 Nc6 Rc8 Nce5 Nb8 Re1 Rd4 Re4 Rf1 Rg4 h1Q Nh2 Rff2 Rf4 Rg2+ Kf3 Nc7 Rf1 Ne6 Rg4 Nc5 Rf4 Nc6 b8B Nb7 Bc7 Nb8 Rg1 Rd5 Rd4 Ra5 Re1 Bf4 Qd3 Bd2 Rc1 Qh6 Rb3 Ra2 Ra3 Be3 Ke4 Qg5 Rd5 Bd2+ Kd4 Qf6 Qg3 Qh6 Qg8 Kh4 Qd8+ Kg3 Rda5 Kf2 R5a4 Bb5 Kd5+ Qe3 Rd4 Qf4 Qa8 Ke3 Qa7 Nd7 Bb8 Bd3 Bc7 Bc4+ Kc6 Nb8+ Kb6 Bb4 Bd6 Rg4 Be7 Bd6 Bh4 Bf8 Be1 Bd6 Bg3
4nNn1/1qb3pR/2Q1bqr1/rB1b4/b2B1NN1/1R2QR1Q/q3R1K1/k2r3Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 a5 h5 g3+ Kg2 c4 b6 a4 b7 c3 h6 c2 h7 a3 b5 a2 b6 Ra3 e5+ Kd7 d6 Ke6 d7 Kd5 e6 Ra5 e7 Na6 b8N Nc7 e8Q Bd6 b7 Qf6 d8R Be6 Bb2 c1R Ne2 Kc4 d5 Kb4 Qd4+ Kb3 Na3 Rd1 Qc6 Ne8 Nc4 Bc7 d6 Kc2 Rb1 a1Q d7 Qa2 Ne5+ Kb3 Ng4 f3+ Kg1 g2 Nf4 f2+ Kh2 Qf7 Bb5 f1B Qe3+ Bd3 Kh3 g1Q Bd4+ Ka3 Rh2 Qf6 Rbb2 Qh1 Re2 Qhd5 Rh1 Qdb3 Rc8 Be4 d8Q Bf3 Nd7 Bfd5 Bc3 Qb4 b8R Kb3 Nf8 Qbe7 N4g6 f4 Qdd7 f3 Nf4 f2 Kg3 f1B Bd4+ Kb4 Rhh2 Bfg2 Rb6 Bb3 Rh3 Ka3 Kh2 Be4 Rf3 B4d5 Kg2 Qb4 Qf7 Qbe7 Qh5 Qd7 Rcb8 Qc8 Qh3 Qb7 Bd3 Ba4 Rb4 Qb2 Rb3+ Ka2 Bb5 Ka1 Rc8 Nh6 N8g6 Rf8 h8Q Ng8 Qh1 Rf7 Q8h3 Rd7 Nf8 Rd6 Qc4 Rda6 Qc6 Rb6 Rc3 Qa2 Rd8 Be4 Rd5 Rba6 Rh5 B4d5 Rb3+ Qb2 Qc5 Qg6 Qe5 Bf7 Rc3 Qa2 Rh7 Qf5 Qc4 Rg6 Qe3 Qf6 Qc6 Bfe6 Rb3+
1q6/1RRQ2pr/b1K5/1RQNq1q1/1rNQ4/Q1n3BB/knB1n1Bn/b1b5 b - - 0 1 illegal: No possible last move, all moves rejected
1b6/1Nr1pBbk/Nr2BQqn/3Q1R2/5rN1/1QB1q2q/bq1RQ3/nB2K3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ra2 Kf7 c4 Kg7 g4 h5 f4 d5 b4 a5 g5 a4 g6 d3 b6 h3 b7 d4 f6+ Kh6 f7 a3 g7 h4 b5 h2 c5 h3 b6 Ra4 c6 Nd7 b8N Nc5 b7 Nb3 c7 Be6 c8B Qd6 f5+ Qf4 Rc2 a2 f6 a1B Nf3 Qe3+ Re2 Bc3+ Nbd2 Na1 Na6 Ba2 b8Q Kg6 Qb5 Rh6 Ne5+ Kh7 Bb2 Ba5 Qd7 Bc7 Qd5 Bb8 Nb3 Rc4 Qb1 Rc7 Nbc5 Rg6 Bd7 Nh6 Nb7 Rg4 Be6 Re4 Bg2 d2+ Kf1 d3 g8B+ Kh8 Qd1 Bg7 f8Q Rb4 Qa4 Rb6 Rg1 h1R f7 h2 Ng4 Nf5 Qab3 Nh6 Bc3 d1Q+ Be1 d2 Be4 Qc1 Bb1 Qc2 Qe8 d1Q f8Q Qce4 Qf6 Qdc2 Bgf7+ Kh7 Qeb5 Qb2 Bc3 Qf5+ Ke1 Qg6 Rf1 Rg1 Qb5c4 h1Q Qcd3 Qhh3 Qd3b5 Rg2 Rf5 Rf2 Qb5c4 Rf4 Qcd3 Qc5 Rd2 Qce3+ Qe2
5rrB/n1Rpq3/2n1BR1N/r1N1k3/nRQq1b2/BB1q4/2R1bq1Q/NK6 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 h5 b4 e5 c4 a5 Kc2 h3 c5 a4 g5+ Kf7 g6+ Kf6 b6 e4 b7 h2 c6 e3 g7 e2 b5 e1Q c7 h4 b6 a3 Qe2 h3 Bb2 a2 Nd2 Bb4 Nb3 Qh4 Rb1 a1R Qc4 Bf8 Nf3 R8a2 Ne5 Ra5 Ng4+ Ke7 f6+ Kd6 f7 Nc6 b8Q Nge7 g8B Bh6 f8B Na7 f5 Bf4 f6 Ba6 Nh6 Ke5 f7 Nec6 Bfa3 Qde7 f8R Qf2+ Be2 Bb5 Rhc1 h1Q b7 h2 Rf6 Qd5 Be6 h1Q c8R+ Qdd6 Bc3 Qh3 Rc7 Rg8 Kb2 Qd3 Rc2 Rf8 Bh5 Qc5 Bhf7 Qb6 Rg1 Rf1 Na1 Rg8 Rg4 Qh3 Qa2 Be3 Qa8 Nb8 Rf3 Qd2 Bcb4 d3 Bf5 Kf6 Rd4 Qd1 Bc3 d2 Rf2 Qh2 Rb4+ Qhe5 Qd5 Be2 Qd4 Qbc5 Bb3 Bg5 Rf4 Rf3 Qc4 Qf2 Rg4 Rf4 Be6 Rf5 Ka2 Bf4 Bb2 Nbc6 b8N Nd4 Qg2 Ndc6 Na6 Qc3 Rc1 Qc2 Rg7 d1N Nc5 Qd3 Qh2 Qe5 Bd4 Nb2 Rc2 Na4 Rg2 Rfg5 Kb1 Rf8 Bdb2 Rgg8 Rg4 Qec3 Rg2 Ke5 Rg7 Kd6 Rg6 Qe5 Bc3 Qee4 Bh8 Qed4 Rf6 Ke5 Bg4 Qdg3 Bh3 Qgd3 Be6
B1q1NK2/1p2B2b/1N2Rb2/2b2Q1k/2QR1R2/n2Rrnrb/2qr1qN1/5NQ1 b - - 0 1 illegal: No proof kernel
1N2k3/1pN2N1n/q5B1/r1n2b1n/nR1R1QQ1/1q1rB3/2bR1K1b/2r1RNB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 e5 g4 h5 a4 c5 f4 e4 d6 c4 d5 h3 a5 c3 a6 e3 f6 e2 g5 h4 f7+ Kd7 g6 b3 a7 c2 g7 h2 f5 h3 f6 b2 Kf2 e1R Qf3 Re4 Be3 c1Q Nd2 b1B Bd3 Qc4 Qf4 Na6 Ra4 Qa5 Rb4 Rd4 Bg6 Qb3 Nf1 Rd3 Nf3 Bc2 Ng5 Nc5 Rg1 Kd8 d7 Bd6 f8N Qa6 f7 Nf6 g8Q Na4 Rh1 Ke7 d8R Bf5 Nd7 Nh7 Nb8 Be5 Qg7 Re8 Rd6 Rc8 Qg8 Rc5 f8R Rc8 Nf7 Rc7 Rfd8 Rcc3 Rg1 h1N+ Kf3 Ng3 Kf2 h2 R6d7+ Kf6 Rh1 Bc7 d6 Nh5 Qg7+ Ke6 Qgd4 Rc4 Qg4 Rcc3 Qdf4 Kf6 Re7 Kg7 Ree4 Rc5 Rd7 Kf8 Red4 Ke8 Nd2 Rc6 Re1 Rc4 Nf1 Rc5 Nc6 Rc8 a8N Ra5 Nb8 h1N+ Kg1 N1g3 Kf2 Bd8 Nc7+ Kf8 Kf3 Ne4 Ke2 Nec5 Kf2 Bf6 Rd8+ Kg7 d7 Be5 Rf8 Bd6 d8B Be5 Re8 Bd6 Re7 Kf8 Rd7 Be5 Bh4 Bd6 Bg3 Be5 Bh2 Bd6 Ne6+ Ke8 Bg1 Rc6 Qfg5 Bh2 Q5f4 Rd1 R7d5 Rc1 Rd7 Rd6 Rd2 Rd3 Rdd4 Ke7 Nc7 Kf8 Nb5 Ke8 Nc7+
Q1NbR1Kn/2r5/b5N1/2bkBn2/4rB1R/n1Q1pB1Q/nN2q1B1/1nQ1n3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 h5 Kg5 a5 Kg6 e5 Kf7 c5 b4 a4 f4 e3 d4 h3 g4 a3 g5 e4 b6 c4 b7 h4 b5 h2 g6 e2 f5 e1B f6 c3 b6 c2 g7 a2 Bf4+ Kd7 d6 Kc6 d7 c1N Ne2 h3 Nd2 e3 Ng3 Rh4 Nf5 Na6 b8Q Ra7 b7 Nc5 Nc4 Ba5 Nb2 Ne4 Qe5 Ne7 g8B Nd2 b8B Ba6 Nd6 Nb1 Nc8 Ng6 d5+ Kc5 Be2 Rc7 d6+ Kc6 Bh7 Nh8+ Kg8 Qe8 d8Q Qh5 d7 Bc5 Bf1 Qe2 Qc3 Bb6 Qde1 Kd5 f7 Ba5 Be5 Re4 f8N Bab6 Bg2 Ba5 Rf1 h1N Qdh4 h2 Rf4 Ng3 Qh3 h1N Rh4 Nf2 Ng6 Nf5 Qeh1 Nfd3 d8Q+ Bd6 Qe8 Bc5 Bf4 Ne1 Qf8 Rb7 Bbe5 Bd8 Qe8 Rc7 Qa4 Ncd3 Qac2 Nb4 Qc1 Nd2 Rb1 a1N Bf3 Nac2 Ra1 Bb7 Ra8 Na2 Ra6 Nfd4 Bg4 Na3 Bh6 Ndb1 Re6 Ba6 Re8 Kc6 Nf4 Qc4+ Nd5 Rf4 Be4 Qe2 Nde7+ Kb5 Ng6 Nf5 Bd5 Rc4 Bhf4 Rb4 Bb3 Rc4 Qa8 Ra4 Bd5 Rc4 Bg2 Re4 Qb8+ Kc6 B4f3 Kd5 Qa8+
RNBKQ3/R2n2b1/1BQN1BrQ/3Qpr1q/3n3r/5Nnr/r4k2/1bBr4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 e3 g4 h3 b6 h4 g5 c6 f5 e2 b7 e1R b5 e6 f6 h2 b6 a4 g6 a3 f7 h3 g7 a2 Qa4 Ra6 Nf3 Nh6 g8Q Nd7 b8N Qe8 b7 Re5 Nc3 c5+ Kc4 Rh5 Kb5 c4 d4 e5 Bd3 Rh4 Bf5 Bg7 Rf1 h1R f8Q+ Qe7 Rd1 h2 Rd3 Rd1 Ne4+ Kc7 Qf6 h1N Ra3 c3 Nd6 c2 Bg4 Nf5 Qh6 Qf7 Qc4+ Rc6 Ra8 Qh5 Qge6 Kd8 Qc3 Ra6 Qc6 Nhg3 Qf7 Rf8 Qg8 Ke7 Ra7 Ra3 Bh3 Nc5 Kb6 Nd7+ Kc7 Rf6 Ra8 Rg6 Qe8+ Kf6 Kd8 Rb3 Ng1 Ne2 Qc3 Rb5 Na6 Nf8 b8B Rb7 Qcc6 Rf1 Bc7 Rg4 Nf7+ Be6 Nb8 Ra7 Bb6 Ra3 Kc7 Rb3 Bb2 c1R d6 Rcd1 d5 Nfd4 d7 Kf5 d8B Ke4 Bc1 Rh4 Be7 Bf5 Bf6 Rc3 Bg4 Rch3 d6+ Kd3 d7 Ng3 d8Q Rf4 Nf3 Ke2 Nd6 Bb1 Bc8 Kf2 Qe6 Rf5 Qed5 Nd7 Qe8 Bd3 Rb1 a1R Kd8 Ra3 Rb3 Ra2 Rba3 Bb1 R3a7
1bb1r1rn/B2rqrR1/2p2Q2/2Q4B/2Kn1N2/Q3RRR1/3NnQr1/3r1Nk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kd6 Ke2 Ke5 Kd3 a5 g4 f5 g5 h5 b6 c6 d6 f3 g6 Kf4 b5 Kg3 g7 Kf2 b7 a4 b6 a3 d7 h3 e5 f4 e6 a2 e7 h4 e8R h2 Ne2 h3 Kc4 Rh6 d4 Qe7 d8N Re6 d5 Na6 b8Q Nh6 g8R Nf7 b7 Nc7 d6 Nh8 d7 Nb5 Qa7+ Nd4 Rhg1 h1N b8Q h2 Qb2 Ng3 Qba3 h1R Nd2 Rh2 Q7c5 Rg2 Rg7 Re5 Rb1 a1R Rb3 Rb1 Rc3 Rb7 Ne6 Rab8 d8Q Rd7 Qc7 Rg5 Q7e5 Rg6 Qf6 Rg5 Rh7 Rg8 Re3 Bg7 Rf8 Bh6 Rg7 Ra8 Nc3 Nge2 Nd5 Bg5 Bb2 Bh4 Bc3 Bg3 Ba5 Rb8 Bb6 Ra8 Ba7 Bh2 Rh1 Bg3 Rh6 Kg1 Qe1 f2 Rhg6 f3 Rff7 Bb8 Rg3 Nc1 Be2+ f1R Rf8 f2 Bh5 Nce2 Nef4 Nc3 Qe2 Rd1 Qe1+ f1R Rd3 Kh2 Ne3 Nce2 Rff7 Rff2 Nef1+ Kg1 Rde3 Rf3 Ne6 Rf5 Nf4 Re8 Rgf3 Rg8 Rgg3 Re8 Rfg7 Rg8 Qh4 Rf7 Qf6 Ba6+ Kb4 Be5 R7g4 Rae8 Rg7 Bc8 Kc4 Bb8 Qf2+
bnNb3q/4pKb1/1RR2N1r/2b1k1r1/R1B5/2NN2nR/Q1b2b2/nBQ1B3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 h5 Kg5 a5 Kg6 c5 g4 c4 f4 a4 d4 a3 b4 c3 g5 c2 f5 a2 f6 e3 b6 e2 b5 e1B b7 h3 b6 h2 f7 h4 Nf3 h3 Bc4 Bd2 Ne5 Na6 b8R Rh5 b7 Nc7 Nc3 Bg7 f8R Nb5 Nd3 Bh6 Kf7 Bd7 g6 Ra5 g7 Nf6 g8B Bhe3 Bh7 Na3 Qe2 Be1 Bd2 B1f2 Be1 c1B Rg8 Rc5 Rg6 Nc2 Qd1 Bb2 Qc1 Rh6 Rc8 Bf5 b8N Be4 Nd7 Qh8 Rb8 Ba3 Rb5 Rh5 Rb6+ Rc6 Rh6 Bc5 Bf5 Rg5 Bg6 Ne8 Nf6 Nc7 Bh7 Na6 Bf5 Nb8 Bg6 Kc7 d6+ Kd8 d7 Kc7 d8N Kd6 d5 Bf5 Nb4 Ke5 d6 Bd3 d7 Re6 Rg1 h1N Nb7 h2 d8Q Ng3 Rh3 h1B Nd6 Ba8 Nc8 Bed4 Rc6 Bb6 Rgh1 Bdc5 Qg8 Bd8 Rb1 a1B Rg1 Nh1 Rg4 Ng3 Rb3 Bb2 Bh7 Na1 Rf4 Be2 Bb1 Bd3 Rfh4 Bc2 Nd3+ Kf5 Ne8 Rh6 Rbb6 Bcd4 Re4 Bg7 Nf6 Ba3 Ba6 Bd6 Ra4 Bdc5 Ke8 Bf8 Qa2 Bg7+ Kf7 Rhh5 Nb2 Ke5 Bc4 Rh6 Nd3+
qBR1B3/rk2R3/3Q3b/Q5n1/N1N1bn2/1NKn1nQp/BrB2r2/rr3N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 e4 f5 b4 a5 g4 c5 b6 a4 b7 Kc7 d6+ Kb6 b5 c4 d7 h3 d5 h2 e5 h4 g5 a3 d6 h3 g6 f3 g7 f4 e6 f2 e7 f3 e8B a2 Kc3 Nc6 b8Q+ Bb7 Nd2 Nd4 Ne2 Nh6 g8B Ne6 Nd4 Ra7 Bd3 f1N N4b3 f2 Bc2 Ne3 Nf1 Ng2 Bf4 Nf7 Rc1 Qc8 d8N a1R d7 Nh4 Nc6 Bh6 Nca5 Nfg5 Qdd6+ Qc6 d8N Nhf3 Qa8 Rh7 Be5 Nf4 Ne6 Rg7 Rg1 h1R Nec5 Rh2 Re1 Rf7 Re3 Nh7 Rg7 Nhg5 Re1 Rf8 Rc7 Rb1 Rc8 Rf6 Ne3 f1R Re2 Rfe1 Nf1 Ra1 Bgf7 Reb1 Re3 Nd3 Bg3 Nf4 Re7 Rf2 Nbd2 Rg6 Nab3 Rg7 Bh2 R7a2 Qa3 Rab2 Na4+ Ka7 b6+ Ka6 Kb4 c3 Nc4 Ba8 b7 Rh7 Be4 c2 b8Q c1N Bc2 Ncd3+ Kc3 Bb7 Qbc7 Ka7 Qa5+ Qa6 Re6 Be4 Bg8 Rc7 Re7 Kb7 Bgf7 Nfe6 Qg3 Nef4 Qd6 Qa8 Bg1 Rd2 Ba7 Rf2 Bb8 Qa7 Nbc5+ Ka8 Na3 Qa6 Ba2 Rd7 Qb5 Qc6 Qa5+ Ra7 Nc4 Qb7 Bc7+ Qb8 Nb3 Kb7 Re6 Qa8 Bb8 Rc1 Re5 Rcb1 Re7+
nr6/3bN3/n2nRRN1/Bnb2R1q/1q2n3/1QQ3Bp/rRB2nN1/2k1KN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 g4 f5 d6 c5 d7 a5 e5 h5 d5 c4 e6 h3 e7 a4 e8R a3 d6 h2 b6 c3 b5 a2 b7 h4 b6 h3 Bb5 c2 Bd2 c1Q Ke2 Ne7 Be1 f3+ Kf2 Kf4 g5 Na6 b8B Qa3 g6 Qb4 b7 Qda5 d8Q Nd5 g7 Ndc7 g8N Bd7 Qf6 Ra7 Bc6 Na8 Be4 Qe5 Kf1 Ke3 Bc2 f4 Re6 f2 Ne2 Be7 Rg1 h1N Nd2 Bf8 Rc1 a1N Ne7 Nb3 Rg5 Nd4 Rf5 Nb5 Ng6 Be7 Bc7 Rb8 Qg7 Bf8 Ref6 Qec5 Ba5 Qd5 Rb1 Qf3 Rb2 Qh5 Nf3 Be7 Ng3 Bf8 Qd5 Be7 Nfh4 Bf8 Bc3 Be7 Bd4+ Kd2 Be5+ Kc1 Ng2 Bf8 Qf3 Be7 Ke2 f1N Qg8 Nf2 Qb3 Ne3 Nf1 Nc4 Qc3 Nd1 Ke1 Nf2 Qd3 f3 Bg3 Be6 d7 Bc5 d8N Ncd6 Nc6 Bd7 Bb6 N6c7 Nce7 Ra2 Ba5 Na6 Re6 Rg8 b8R Nf7 Ree5 Nd1 Rb6 Rb8 Rbf6 Nfd6 Nd2 f2+ Kf1 Qf4 Qd5 Qfg4 Qcf3 Qb4 Ke2 f1N Ree6 Nf2 Qb3 Bd4 Ke1 Bc5 Bf4 Ng3 Qfc3 Nge4 Nf1+ Be3 Bh2 Bc5 Bg3
Kb1Qb3/1B3R1q/2N3R1/1b2pQr1/N1b2q1k/B5bQ/2NQnBr1/5nBb b - - 0 1 illegal: No possible last move, all moves rejected
2K1b3/bN5n/6Bp/RnQnB3/1R1q1R2/rBR2nr1/2QknB1n/q4Q1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 a5 g4 c5 d4 f5 d6 a4 d7 f3 Ke6 f2 d5 h6 b6 a3 b5 a2 e4+ Kb4 b7 c4 d6 h3 e5 c3 g5 c2 g6 h2 b6 f4 g7 f3 Bc4 f1Q Ne2 f2 Na3 Ra5 Ng3 Kc3 Bb3 Rb5 Nc4 Be7 Na5 Na6 b8R Nb4 b7 Nd5 Be3 Ngf6 g8R c1N Rg4 Nh7 Rf4 Ne2 Ba7 Qg1 Qf1 Kd2 Rc1 a1N Rc3 Rg8 Ra8 Rg5 b8B Ba6 Nb7 Ra5 Bb6 Qh8 d8Q Nd4+ Kd7 Bb5+ Kc8 Nac2 e6 Be8 d7 Na3 Qc7 Bc5 d8Q Nab5 e7 Nf3 Qdd6 Ra3 Ra5 Qd4 B6a7 Bb6 Qdc5 Rg6 Q7c6 Rg4 Be5 Rg6 Qg2 Qa1 Rb1 h1N Qg1 f1N Qc7 N1h2 Qf1 Nf2 Nh1 Rg3 Q7c6 Nh3 Qc7 Bc6 e8B Nhg1 Bg6 Ne2 Bc4 Ne1 Rb4 Be8 Bb3 Nef3 Bb8 Qd3 Bd4 Qc4 Bf2 Ba7 Q7c6 Qd4 Be5 Ne3 Qe4 Nd5 Qc2#
2k1n2b/2b1N1b1/r1p1b1Qq/8/3RRN2/4bBn1/2Qn1NnB/1r1RBRKB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 f5 d4 a5 e4 g5 b4 a4 d6 a3 d5 c6 e5 a2 e6+ Ke8 h5 f3 h6 f4 e7 Kd7 b6 Ra3 b7 Na6 b8R Qc7 e8B+ Kd8 b5 Bg7 h7 Ne7 b6 Ng6 d7 Qd6 b7 Nh4 Nd2 Qh6 Qc2 Nc7 Bh5 Ra6 Bg2 Ne8 Nh3 g3+ Kg1 g4 Ne4 Rg8 Rb1 a1B h8N Kc7 d8R Be6 Bd2 f2+ Kf1 Rf8 Ng6 Bab2 Bf3 Ng2 Be1 Bh8 Rg1 Bbg7 Rd1 Rf5 Ne7 Re5 Ke2 f1N Ra8 Nd2 b8B+ Kb7 d6 Rb5 d7 Rb2 Rf1 Rb1 Ba7 Kc7 Bg1 Kb7 Nef2 Kc7 Bd5 f3+ Kd3 Kb7 Nf4 Kc7 Bh2 Kb7 N2h3 f2 Ke2 Kc7 Rh1 f1N Nf2 Nh4 Rab8 g2 Rb4 g1B Re4 g3 Bg4 g2 Bf3 Ng3+ Ke3 Nb3 Rdd4 Nf6 Rf8 Nd2 d8Q+ Kb7 Qe8 Kc7 Qg6 Ne8 Kd3 Kd8 Ng4 Be3 Nf2 Kc7 Rf1 g1B Rg8 Nh5 Ke2 Ng2 Rf8 Nb3 Rd1 Nd2 Rf5 Kb8 Rg5 Bb6 Rg4 Bc7 Rd4 Nh4 Bh1 Ng2 Bf3 Kb7 Rg5 Kb8 Re5 Kb7 Ree4 Kb8 N2d3 Be3 Nf2 Ng3+ Kd3 Nf5 Ke2 Nfh4 Ng4 Nf5 Nd3 Bef4 Kf2 Ng3 Kg1 Be3+ Ngf2 Kb7 Nf4 Kb8 Ng8 Kc8 Ne7+
r2b4/qpqNR1B1/bNkN2K1/8/1qqq1r2/1R1Rq1R1/2n1Qn2/1Q1Q1BQ1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 Ke4 c5 f4 h5 a4 c4 g4 h3 d4 b3 g5 c3 f6 h4 Kf5 e4 f7 e3 d6 e2 a5 e1Q a6 c2 a7 b2 d5 h2 g6 h3 g7 Qf2 Ra3 Rh6 Rg3 Rh5+ Kg6 Qa5 f5 Qg2 f6 Nc6 Nc3 b1Q Bb2 c1Q+ Ne4 Qac3 Qe2 Qd4 Nf3 Nh6 g8Q Be7 f8Q Nb4 f7 Qc7 Bc3 Qe3 Bg7 Nc2 Qh7 Qgf2 Qfg8 Qb5 f8R Rf5 Re8 Bd8 Rhg1 h1Q R1g2 Rb8 a8N h2 Rh3 Qh4 Rgg3 Qbc4 Re5 Qe7 Re6 Rf8 Ne5+ Ke8 Rg4 Bd7 Qd3 Qf4 Nb6 Rc8 Kh5 Na3 Qf5 Qhf3 Na8 Bb5 Bf6 Ba6 Qe2 Qfd3 Rg1 Ng4 Qgg5 Qb1 Kg6 Qbb4 Bg7 Qf2 Rf3 Qa7 Nb6 Ra8 Rb3 Rf7 Qge3 Rf8 Rg3 h1Q Bg2 Qhc1 Qg1 Qd1 Qff1 Qdd2 Qb1 Rf4 Bf1 Nf2 Nc3 Q7c5 Ne4 Bc7 d7+ Kd8 Rd6 Qh4 Re6 Nc2 Re7 Qde3 Nf6 Bb8 Nf7+ Kc7 d6+ Kc6 d8Q Qce5 d7 Bc7 Qb8 Re4 d8R Rd4 Rdd7 Qhf4 Qd8 Re4 Rd1 Qa1 Qd4 Bd8 Nfd7 Qc7 Nd6 Rf4 Qdd2 Qae5 Qdc1 Q5c5 Rdd3 Q5d4 Qcd1
1n3b2/Kp1RrN1Q/R4kN1/nb3q1R/4b3/1b2BNn1/B3rR1b/Q1Q2nQ1 b - - 0 1 illegal: No possible last move
1r4r1/R1NrBB2/K2b1b2/2Q2nRB/1rQ2Bb1/1N1n2kn/1n3Np1/2R2q1R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kd3 c5 Kc4 f5 e4 g5 b4 a5 h4 a4 h5 g3 b6 f3 Kb5 c4 b7 c3 h6 f4 h7 c2 Nd2 g4 Qe2 g2 Qc4 g3 Nb3 a3 Be2 a2 Nh3 g1N Nf2 Na6 b8Q+ Qc7 Qa7 g2 Bd2 Ne7 Rc1 Rg8 h8R a1B R8h5 Nh3 Rg5 Nf5 e5+ Kd7 d6 Rb8+ Qb6 Nc5 d5 Nd3 Bd1 Nb2 e6+ Kd8 d7 Ke7 d8R Kf6 d6 Ke5 d7 Bd6 e7 Qb7 Ne4 f2 e8B f1R Bf7 f3 Nf2 Rg1 Be2 Rd1 Ka5 Qe4 b5 Qf4 Be3 Rd2 Qa7 Rd3 b6 Rd4 b7 Rd3 Rb1 c1N Ka6 Rd4 Bd2 Ncd3 Rbc1 Rd5 Rf8 Rb5 d8B Rb4 Be7 Bd7 Nd1 f2 Beh5 f1R Nf2 Rd1 Rc8 Qf3 Rc7 Qe2 Be3 Qf1 Bd2 Bc6 Qb6 Bf3 Be3 Bg4 Rd7 Rbf8 b8N Rd2 Ra7 Rc8 Bd4+ Kf4 Be3+ Kg3 Qbc5 Rcd8 Nd7 Rdb8 Nb6 Na4 Na8 Bf6 Nc7 Nab2 Bf8 Re2 Bd2 Re7 Be3 Rd7 Be7 R4b7 Bd2 Rb4 Bf4+
1N1n2Q1/2K1nq2/2RR4/R1NRrB1b/N1p5/1r2Qb2/n1bb2kB/rr1B2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 b4 h5 d4 c5 g4 f6 b6 c4 g5 f3 g6 h3 b7 h2 b5 h4 b6 a4 g7 a3 Qb3 h3 Nc3 f2 Be3 a2 Na4 Bg4 Nc5 Nc6 b8N Qc7 b7 Nge7 g8Q Bh6 Bg2 f1N Bf3 Bg5 Bf2 Qd7 Qe3 Bh5 Bg4 Ra3 Bf5 Bh4 Kf4 Nd8 Ke4 Ng3+ Kf4 Kc7 d6+ Kb6 d5 Rb3 Rf1 Qe6 d7 a1R d6 Qf7 Rd1 Rh6 Rd5 Ne4 Re5 Nc3 Rd5 Ndc6 d8R Na2 Rc8 Nd8 d7 Bg5+ Ke4 Kb5 Rc7 Bf4 Rc6 Rg6 Rdd6 Rg5 Rd5 Be5 Rdd6 Bc3 Rd5 Bd2 Rdd6 Ne6 d8R Kb4 R8d7 Nd8 Rd5 Rab1 R7d6 Ra1 Bg4 f5+ Ke5 f4+ Bf5 f3 Rf6 Bc1 Kd6 Rab1 Kc7 Bd2 Rfd6 Kb5 Qc3 Ra1 e4 Rab1 Bd4 f2 e5 f1B e6 Bd3 Ne2 Bc2 Qe3 Ra1 Rf1 h1R Nc3+ Kb4 N3a4 h2 Rf4 Rhb1 Re4 h1B Ree5 Nc8+ e7 B1f3 Nbd7 Kb5 e8B Ne7 b8B Kb4 Qe1 Kb5 Bg1 Kb4 Nb2 Kc3 Qe3+ Bd3 Nba4+ Kc2 Bh2 Kd1 Ba7 Bde4 Nb8 Bc2 Be4 Rf5 Bd7 Rg5 Bg4 Rf5 Bd3 Rg5 Be2+ Ke1 Bd1+ Kf1 Bf5 Kg2 Ne4 R3b2 Ra5 Rb6 Red5 R6b3 Bd4 Be1 Nec5 Bd2 Bg6 Re5 Bf5+ Qg6 Qh6 Qg7 Bdg1 Qg6 Qe3 Qg7 Bg3 Qf7 B3h2+
4KBNq/4b2b/3kr2N/2r1p3/1b3QR1/NBn2Rn1/rR2b2n/BRQ3Bn b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 h5 g4 e3 d4 e2 f4 e1B b4 c4 d6 h3 d5 e6 b6 h4 b5 h2 f5 c3 g5 c2 f6 a4 f7 a3 b7 a2 b6 h3 g6 Ra7 g7 Rh7 Bc4 Ra3 Be3 c1N Ne2 Nh6 g8N Bf2 Ng3 Ra6 Rf1 h1N Bb3 h2 Na3 Ne2 Nf5 Be7 f8B Nc3 Qc1 Be1 Rb1 a1R Bg1 Ra2 Rf3 Ra5 Rb2 Na6 b8Q Nc5 b7 N5e4 Rb1 Rc5 Qc7+ Ke8 b8R Ba6 d7+ Kf7 Rb4 Neg3 Rg4 Be2 Qb8 Qc8 d8R Rg7 Qb4 Rg6 Qbf4 Bd2 Rd6 Ke8 Rb6 Kd7 Kd4 Qa8 d6 Qe8 Rb8 Kc6 d7 Qd8 Rg5 Ng4 Nfh6 Qe8 d8B Kd7 Qf7 Kd6 Qf4+ Ne5 Ba5 Qc8 Bc4 Nce4 Nf6 Bf1 Bc3 Be2 Bg7 Qh8 Ba1 Be1 R8b3 Bb4 Bf8 Nc3 Nfg8 Rf6 R3b2 Rg6 Bb3 Rf6 Qh4 Rg6 Ke3 Ng4+ Kf4 Rf6+ Rf5 e5+ Kg5 Re6+ Rf6 Ne3 Kg6 Nef1 Kf7 Nf2 R3f5 h1B Ke8 Nh2 Rg5 Be4 Rf3 Nfh1 Qhf4 Bh7 Rg4
Qr1q3Q/rq6/1RN1nN1q/2Bb2nr/q3R1N1/5Q2/rR1k1p2/2RBbK1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 d4 Kd6 g4 f5 e4 c5 b6 a5 g5 h5 g6 f3 g7 h3 b7 h4 b5 c4 b6 f4 Rh2 a4 Bg2 c3 Kf2 c2 Kf1 f2 Nc3 a3 Nce2 a2 Bf3 Ra7 Be3 c1Q Ng3 Be6 Nh1 Nh6 g8N Nc6 b8N Nf7 b7 Ng5 Nf6 Bh6 Rg2 h2 Nh3 Re8 Rb1 a1R Bh5 Qb2 Rc1 R1a2 Qf3 Qa3 Bg4 Qa4 Bh5 Rh8 Bg4 Rh7 Bh5 Bg7 Bg4 Rh5 e5+ Kc7 d6+ Kb6 d7 Kb5 d5 Kb4 d6 Bd5 e6 Nd4 e7 Nde6 e8R Bh6 Rd1 Kc3 Rc1+ Kd3 Bb6+ Kd2 Nc6 Bf8 b8R Bg7 Nh7 Bc3 Nf6 Bb4 Bc5 Ba5 Ng1 h3 Rb6 Bb4 Qe4 Ba5 Bd1 Bc3 Qf3 Bb4 Ng3 h1Q Re7 h2 Re8 Qe7 d8Q Bc3 Qa8 Qd8 d7 Nc7 Qg4 Kd3 Nf5 Rh4 Bd4 Bf3 Ng8 Qe7 d8Q Be1 Qdc8 Qd6 Re5 Nce6 Nb8 Qd5 Qe8 Qd8 Nf6 Bb7 Rb4 Rh8 Rg3+ Kd2 Rgb3 Rh4 Bc5 Nd4 Nh6 Nde6 Qf8 Qf3 Qf5 h1Q Qh8 Qh5 Qg4 Qhc6 Qg2 Rh1 Nhg4 Qh6 Ree3 Qcd7 Re5 Bd5 Nc6 Qdg7 Qe4 Rh3 Rbb1 Rb3 Kg2 f1R Nh3 Rbb2 Nhf2 Rh1 Rb8 Rh3 Kf1 f3 Nh1 f2 Qf3 Rh5 Re4 Qf7 Rb6 Qfe7 Ra6 Rb8 Rab6 Qb7 R1b2+
n2Qbq2/K1R1r2k/4q1Bb/4NbRr/1QB5/p1Q2N2/Rb1rnB1r/1Q5R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 Kf7 e4 Kg7 b6 c5 e5 c4 g5 h3 b5 h2 b7 a4 e6 a3 d6 f3 Ke3 h4 g6 h3 d5 f2 Kd4 c3 Kc5 f4 b6 f3 e7 c2 e8B Bf5 Bf7 Qe7 Qe1 Ra7 Ra2 Qe6 Qc3+ Nf6 Bc4 f1Q Nd2 f2 Ndf3 Rh5 Be3 c1B Ne5 Nc6 b8Q Bb2 b7 Nd4 Kb6 Ne2 Ngf3 Ne8 Bd4 Kh8 g7+ Kh7 g8R Nc7 Rg5 Bg7 Qf8 Bh6 b8Q Na8+ Kc6 Ba1 Qb1 Bb2 Kc5 Re7 d7 Ba1 d8R Bb2 Rhg1 h1R d6 Rh2 d7 Rg2 Rc8 h2 d8Q h1R Rc7 R1h2 Be3 Qe1 Kb5 f1B Rh1 Qf2 Bb6 Qc5+ Ka6 Rf2 Ka7 Bg2 Nh4 Bc6 Nhf3 Qcd6 Bc5 Be8 Bd4 Nf4 Be3 Rd2 Bb6 Ne2 Bf2 Rd7 Qfe7 Qb4 Qd6 Qc5+ Qb6 Qf8 Qbb4 Re7 Bg6+
1q2Q1QK/7b/qRn1rkBN/1R3b1R/B2bN3/pn2b1Br/q1q5/2BQR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 f5 e4 c5 g4 h5 d4 a5 b4 c4 g5 c3 g6 c2 d6+ Kf6 b6 a4 b7 h3 d5 h2 e5+ Kg5 e6 a3 d7 h4 e7 h3 e8B Nf6 g7 Ra6 g8Q+ Bg7 d6 Ne4 b5 Nc6 b8R Kf6 b6 Nc5 b7 Nb3 Bb5 Qb6 d8R Rh6 Bd2 c1B d7 Qc5 Bd3 Qc2 Ne2 Rh7 Nbc3 Rh5 Be1 Be3 Nd4 Rb6 Bg3 Rh6 Rg1 h1B+ Rg2 h2 Ne4+ Ke7 Bg6 Rh3 Bb5 Be5 Ba4 Bf6 Nb5 Bfd4 Nbd6 Ra6 Nf7 Rb6 Nd2 Kf6 Nh6 Ra6 Re8 Rb6 Re5 Qa2 Ke2 f3+ Kd3 f4 Ke4 f2 Rb5 f1Q Rb1 f3 d8Q+ Ne7 Ra1 f2 Qde8 Qe2 Rc1 f1Q Rcc5 Nc1 Rh5 Nc6 Bf4 Nb3 Kd5 Rf3 Rg1 Bf5 Kd6 Qff2 Re1 Rh3 Bg3 Qef1 Rb4 Qa6 Bf7 Bh7 Bg6 Be4 Rbb5 Qe2 Bf2 Nb4+ Kd7 Bg5 Be3 Re6 Kd8 Bc5 Kd7 Bf5 Ne4+ Ke5 Bc1 Nc6 Qe7 Qed2+ Ke8 Be3 Kf8 Qg2 Kg7 Qgc2 Rb4 Bcd4 Qee8 Qb6 Kh8 h1Q Qe2 Qf1 Qd1 Qfa6 Rb5+ Nc5 Rc8 Qd8 b8B+ Qd6 Rc7 Qd8 Rcb7+ Qd6 Nd2 Kf6 R7b6 Nb3 Bc7 Qd8 Bg3 Qb8 Ne4+
2B5/4N1Nq/BnK2b2/2Qr2N1/5pb1/1qBQRqRn/b1B2b1q/1Qk2r1N b - - 0 1 illegal: No possible last move, all moves rejected
2rB2b1/Bb1kb1q1/1rQb2n1/p2Q4/B2rn1q1/4R1N1/RQR1B3/2rNQ2K b - - 0 1 illegal: No possible last move, all moves rejected
q1q1qnBB/R2b4/6rp/1r2R1R1/2Bb2QQ/5k2/KQ1qR1nB/Nr1Nr3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 a5 Kb3 c5 g4 f5 e4 h3 b6 c4+ Ka2 f3 b4 f4 b5 c3 e5+ Ke7 e6 Kf6 b7 Kg5 d6 c2 d5 h6 b6 h2 e7 f2 e8R a4 d7 a3 d6 Qe7 d8R Ra5 d7 Rb5 Bc4 f1R Qe1 Bg7 Qe6 Bd4 Bb2 c1Q Nc3 f3 Nge2 f2 Nd1 Qd2 Rg1 h1R Nc1 Kf4 g5 Kf3 g6 Re1 g7 f1Q Nb3 Nf6 g8B Qh3 Rg5 Ng4 Re5 Ne3 Rg5 Na6 b8Q Ng2 b7 Nc5 Qbe5 Rh7 b8B Rg7 Q5f6+ Qf5 Bh2 Rg6 Qh8 Qef7 Re7 Qfc2 Rde8 Qcc1 d8Q Nd7 Qhe5 Nf8 Ra7 Qcc3 Rb1 Qcc2 Na1 Bd7 Rc1 Qcf5 Rc2 Rhf1 Re7 Qe8 Qeb8 Qc5 Bc3 Qc8 Rb2 Be3 Bh8 Bd4 Rc2 Ra5 Qb2 Rb5 Nc3 Rb1 Nd1 Re1 Qa6 Qc3 Rce2 Qd2 R7e5 Rc5 Kb3 a2 Qe6 Ra5 Rh5 Rc5 Qh4 Rd5 Ka3 Rb5 Rhg5 Qc6 Ra4 Rc5 Nc2 a1Q+ Kb3 Rd5 Ra6 Qaa5 Na1 Qad8 Ra7 Qdc8 Ka3 Q6a8 Ka2 Rb5 Qeg4+
2rRr1q1/N2b4/1Q1r1p1r/nbBN2bq/1KN1BQ2/R1R5/Q1R5/n1b2kN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kf6 e4 Ke5 g5 Kd4 e5 a5 g6 c5 d6 h5 e6 a4 e7 c4 e8R c3 d7 f3 b6 a3 b5 a2 g7 h3 b7 h4 b6 c2 Bg2 Kd3 Re2 h2 Na3 h3 Nc4 f6 Ba3 c1B Bc5 Na6 b8Q Nb4 b7 Ne7 g8N Bh6 Qa4 Nec6 Qf4 Bg5 b8N Na5 Ne7 Re8 Nd5 f2+ Kd1 f1B Nc6 Ra6 Na7 Nc2 Bf3 Rd6 Rg2 Qb6 d8Q Qb3 Qb6 Bd7 Rf2 Bb2 Rc1 a1R Qa2 Rb1 Re2 Na1+ Ke1 Bd4 Bg2 Be3 Rf2 Rb2 Rf3 Rc2 Kd1 Rc3+ Rc2 Qb5 Rg3 Qc6 Kc1 Qc8 Kb2 Qd8 Qbb3 Qc8 Ka3 Qa8 Kb4 Qd8 Nf3 Ke2 d4+ Bd2 Rg1 h1R Qbb2 Rh2 Rh1 Qc8 Ng1+ Ke1 Be4 Bc1 Ne5 Bfb5 Nc4 Rh8 Rf3 Qg8 Qbb1 Re3 Rc3 Rc2 Rh2 Rh6 Ra3 Ree2 Rfc3 Re3 Rg2 h2 Qbb2 h1Q Qbb3 Rb2 Rgc2 Qh5 Bf5 Bbc6 Ndb6 Rh7 d5 Rde6 d6 Rh6 Nd5 Be8 d7 Rd6 d8R Bed7 Bg6 Rb1 Bf5 Re8 Be4 Bb7 Qbb2 Ba6 Qbb3 Bh3 Ka4 Bd7+ Qb5 Rb2 Bf3 Kf1 Qc6 Rb8 Qb5 Ra8 Kb4 Rc8 Qb6 Bab5 Be4+
2B2Nr1/kRr3rR/1b2p2n/2nb1B2/r4n2/7R/NR1KNqqB/2QQ1N1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 f4 c5 d4 Kc7 b4 Kb7 d6 h5 d5 a5 f5 a4 b6 c4 f6 a3 f7 h3 b5 h2 g5 a2 g6 e3 g7 c3 d7 h4 d6 e2 Bf4 c2 Kd2 e1R Ne2 c1R Bh3 Nh6 g8B Na6 Bf5 Rc7 Qc1 h3 Be5 Qe8 d8Q Be6 d7 Rg1 Bg3 Bg7 f8N Bd5 Bge6 Nc5 Be5 Ra4 Bf4 Rc8 Be5 Ka8 b7+ Ka7 b8R Rc7 Bg3 Qg6 b6+ Ka6 b7 Rg8 Be5 Qg2 Ke3 Qf1 Qc4+ Ka7 Nf4 Na6 Ne2 Be4 Nd2 Nb4 Rc8 Nf7 b8N Rc5 Rc1 a1N Na6 Nd3 Nb4 Nb3 Rb1 Nh6 Rb8 Rc7 Qc1 Ba8 Bg3 Nf4 Na2 Bc3 Rb2 Ba5 Qc6 Qe1 Nf1 Rg2 Qc1 Nc5 Bb3 e6 Bd5 Nf7 Bb7 Bb6 Bc8 Be4 Qh4 Rg1 d8R Nh6 Rd7 Bd5 Rh7 Rg2 Bf2 R2g7 Bg1 Qg3+ Kd2 Qf3 Qhe1 Qg3 Be3 Qh4 Qed1 Qg3 Rg1 h1Q Bd4 Qgf3 Rg3 h2 Bg1 Qhg2 Rh3 h1N Bh2 Qff2 Rb7+
Kn3q1B/pr4n1/NB1knrB1/rbN5/3BQb1Q/RQQ4r/2n1Rq2/4R3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 d4 f3 g4 f6 b4 f2 b6 h3 b5 h2 d6 c4 Kd5 f5 e4 c3 g5 f4 e5 h4 g6 f3 e6+ Ke8 g7 c2 b7 h3 e7 Kd7 e8R Nh6 g8Q Qe7 b6 Nf7 Nd2 Qf6 Ne2 Nh6 Qg4+ Nf5 Qe4 Na6 b8B Nh6 b7 Qf4 Ra3 Nf5 Qe1 Rh7 Nc3 Bh6 Bb2 c1N Na2 Ng7 Nb4 Nd3 Nb3 Qf8 Qc3 Ndc5 Bd3 Nce6 Re1 h1R Bc7 f1R b8Q h2 Bb6 f2 Re2 Bf4 Bc2 Nac5 Na6 Ra1 Bb1 f1N Bd3 Nd8 Re5 Nce6 Nbc5+ Ke8 d7+ Ke7 Bc2 Nc6 Qb7 Nb8 d8B+ Ke8 Bb1 Bd7 Bf6 Bb5 Bd3 Rh3 Re1 Rg1 Re2 h1Q Re1 Nh5 Bh8 Rg7 Bb1 Re7 Kd6 Qg1 d5 Qf2 Bc2 Ng5 Bd3 Re6+ Kc7 Ng7 d6 Ne3 d7+ Ke7 Qbd5 Nc2 Kb7 Ra2 Qdb3 Kd6 Ba1 Rf6 d8Q+ Nd7 Bb2 N5e6 Re2 Rc8 Re1 Rc7+ Ka8 Rb7 Re2 Ng5 Re7 N5e6 Re8 Rfh6 Qh4 Nb8 Qec4 Rf3 Re1 Re3 Qc3b4 Ra1 Ra4 Rf6 Bg6 Rc3 Qd3+ Ned4 R8e2 Ra3 Qe4 Nde6 Ra5 Rf3 Bd4 Rh3 Q4c3 Ra1 Ra4 Ra2 Rb4 Ra5 Ra4 Rd3 Raa1 Rh3 Ra3
N2Q1Rr1/3Qn2R/R1rb2bK/q1p1kNBR/3q1b2/2Qr1npQ/4n3/1B3B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 a5 e5+ Kc7 d6+ Kd7 d5 g5 e6+ Ke8 d7+ Ke7 d6+ Kf6 h5 g3+ Kf3 a4 b6 g2 b5 a3 b7 a2 e7 Nc6 b8R Ra3+ Qb3 Na7 e8B Rh6 b6 Nb5 b7 Qa5 d8Q+ Ne7 d7 Nc3 Bg6 Ne2 Nc3 Ke5 Nb5 Rh8 h6 Rg8 h7 g4+ Kf2 g3+ Kf3 Bh6 h8R Bf8 R8h7 Bh6 Nh3 g1Q Nd6 Qd4 Qc3 Bf8 Ng5 Rb3 Rb1 a1B Ne6 Bb2 Be3 Bc1 Ra1 Rb6 Qe8 Rc6 d8Q Bd7 Qf7 Be8 Nc7 Bd2 R1h5 Bc1 Kg2 f3+ Kh3 f2 Bg5 f4 Bb1 f3 Na8 Be3 Qd7 Bf4 Qfc4 Bg6 Kh4 Rg7 Nf5 Rg8 Bh3 f1N Q4b4 Qa7 Ra6 Nd2 Bf1 f2 Re8 Qb6 b8Q+ Qc7 Qbc8 Qa5 Qb6 Nf3+ Kg4 Rg7 Qbd8 Rg8 Bh3 f1R Bg2 Bg7 Rf8 Rd1 Bf1 Bf6 Qcb7 Rd3 Qbb2 Nc1 Qh2 Ne2 Qh3 Bg7 Rf7 Bf8 Rf6 Nc8 Rff7 Bd6 Rf8 Ne7 R5h6 Be8 Rh4 Rg6 Kh5 Rg8+ Kh6 Bg6 Rh5
K2R2R1/4n1N1/3rN2p/2nQN2Q/2rbR3/p1R3N1/qBrqBqk1/1b1b1Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 c5 b4 h3 g4 c4 b6 h2 b7 c3 g5 h6 b5 a4 b6 a3 g6 f6 g7 c2 Nf3 Bd7 Qe1 Qe7+ Ne5 f3 Nd2 f2 Bb2 Bb5 Rc1 Na6 b8R Bc4 b7 Qe6 Rd8+ Qd7 b8R Ne7 g8Q Bg7 Qe8 Ra7 Qh5 Bb3 e3 Ba4 Be2 Rc7 Nf1 Rc4 Ng3 f1Q Rg8 Qf2 Rbd8 Rh7 Rg1 h1Q+ Rg2 Kc7 d6+ Kb7 Rge8 Qh2 Rg8 Qe6 d7 Kc7 Rg1 Kd6 Rf1 Bh8 Rh1 Rg7 Rg1 Rg6 Rge8 Rc6 d5 f5+ Kd4 f4 Ke4 Kc5 d6 f3 Rg8 Nb4 Rh1 Qhg2 Rh4 Qa2 Rf4 Na6 Rg4 Kb6 Kd4 Nc5 Re4 Qb1 Kc4 Qa2+ Kb4 Kb7 Ka5 Rc7 Ra8 Rc6 d8Q Rg4 d7 Rd6 Rc8 Bf6 Rd1 c1R Rd3 Bc2 Rc3 Bb1 Kb5 Qh2 Qa5 Rc2 Rcd8 Bg7 Qa8+ Kc7 Qd5 Bh8 Ra4 Rc4 e4 Qd4 Ka5 f2 Kb5 f1B Rb4 Rf6 Ra4 Qd2 Rb4 Ne6 Ka6 Nc5+ Ka7 Qf2 Ka8 Rd6 Nd3 Bf6 e5 Qc1 e6 Nc8 e7 Bg2 Qe4 Rcd4 Bf1 Bf3 Rde8 Bd1 d8N Qcd2 Ne6+ Kd7 Qef5 Kc6 Rd8 Rh4 e8N Ne7 Rbc4 Be5 Qfg5 Kd5 Be2 Re4 N8g7 Rd4 Nh1 Ke4 Qg2+ Ke3 Qd5 Re4 Ng3 Rg4 Rf4 Rh4 Rff8 Rc4 Rf4 Bd4 Qeh1 Qf3 Ne5+ Kf2 Qe1+ Kg2 Re4 Qf2 Qf1+
2B1R1b1/K7/1RQp1bp1/N1B2N2/1N2Q2R/Br1qn1k1/nN1qb3/nBr2r2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 f4+ Ke4 h4 d3 c4 a4 b4 g6 f6 g3 f5 g2 h5 d2 b6 Kf4 b7 a3 b5 a2 h6 Qe8 Kb6 e5 h7 e4 c5 e3 f7 e2 c6 e1N c7 Bd6 f8R Nh6 f6 Ng4 f7 Nc2 Na3 Qe5 Nc4 Qb2 Ne2+ Kf3 Rb1 a1R Qe1 g1Q+ Nd4+ Kf4 Rh4 Qg2 Bd3 R8a2 Qe4+ Kg3 Re8 d1B f8B Qb3 Ba3 Qd2 Nb2 Be7 Ka7 Be2 b6 Na6 b8N Nge3 b7 Nab4 Na6 Bf6 Bc5 d6 b8N Rf8 h8Q Be6 c8B Bg8 Nbc6 Qd5 Na5 Qc4 Rbh1 Rc1 Qh7 Qb3 Qd7 Na1 Bb1 Qbc3 Qdc6 Qcd3 Na4 Rac2 Nb2 Na2 Nb4 Rc3 Rf1 Rb3 Rff4 Bg5 Rf7 Bd8 Rb7 Rff1 Rb6 Bf6 Nf5+
KQbbrQ2/3BRN2/1BpN1Qq1/Rr1NQ1B1/k3p3/5b1r/2nnn1q1/2B5 b - - 0 1 illegal: No possible last move, all moves rejected
8/4n1qp/bnr1B3/BpQN3n/1KRRr2B/3bB3/2RrN1Qb/3k1qNR b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 a4 c5 f4 e5 g4 b5 a5 b3 Kc3 h3 a6 b2 f6 c4 a7 e4 f7 h2 g5 e3 g6 e2 g7 e1N f5 Nd3 f6 Qc7 Qg4 Nb4 Ra2 Nd3 Qg2 Qd8 Be3 Nf4 Kb4 c3 Bc4 c2 Nc3 b1B Nce2 c1R Rc2 Ne7 g8R Qd7 Rg4 Nh5 Ba2 Bh6 f8R Ba6 f7 Bf4 Rfc8 Re8 f8Q Rd8 R2c4 Bd3 Rc2 Qb7 R8c4 Nd7 Rh4 Rab8 a8N Nb6 Nc7 Re8 Rg4 Rbc8 Qf5 Rd1 Qg5 Rd2 Bb3 Kd7 d6 Bg3 Nd5 Ke6 d7 Rc6 d8B Qc7 Qh6+ Kf5 Qd6 Bf4 Qc5 Qe5 Rg6 Qg7 Rd6 Bg3 Bc7 Kg4 Bd8 Nf5 Bh4 Re4 Nc7 Ne7 d5 Qg8 Rd8 Qf7 d6 Qg7 Qf2 Bf4 d7 Bd6 Nd5 Bc7 Nh3 Bd6 Qg2+ Bg3 Ra1 h1Q Rd1 Qe1 Ra1 Qf2 Rh1 Qf1 Ba2 Kf5 Nhg1 Bh2 Rb8 Ke5 d8B Kf5 Rb7 Ke5 Rd7 Kf5 Qf2+ Kg4 Qg2+ Ng3 Ndf4 Nec8 Nc3 Ne7 Rdd4 Nd7 Ba5 Nb6 Nd1 Bb7 R4c3 Ba6 Bf7 Nc4 Nd5 Nb6 Qf2 Nh5 Rcc4 Qe5 N1c3 Qg5 Nh3 Qg7 Qg1+ Kf3 Be6 Ng6 Nd1 Ke2 Qg2+ Qf2 Ng1+ Ke1 Nb2 Ne7 Na4 Kd1 Nac3+ Ke1 Na2 Kd1 Nc1 Qf1 Nce2
1Q1RB1n1/bbn4p/Q1r1p2B/1b6/1Q2qq1N/RNQ1k2N/r1rRN3/3K1n2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 f4 Kd6 g4 a5 b4 c5 g5 a4 f5 a3 g6 a2 f6 h3 b6 h2 b5 e3 b7 c4 g7 e2 f7 c3 b6 c2 Qd2 e6 Nh3 Nc6 b8Q+ Qc7 b7 Ra6 Qc3 Nge7 g8Q Ra4 Bh6 Bd7 Nd2 Nb4 Nb3 c1R+ Kd2 e1N Bb5 Ng2 Rd1 h1B Qc8 Ra8 b8Q Na6 Qg4 Ne3 Bc6 Bg7 f8N Ng8 Ng6 Nf1+ Ke1 Be4 Nh4 Rc2 Rd2 Bf8 Ba4 Bb5 Kd1 Be7 Qcb7 Bg5 Q7c8 Be3 Qcb7 Bbd3 Be8 Bb5 Q8a7 Qc4 Qbb8+ Nc7 Qaa5 Ra6 Qa4 Rc6 Qa6 Ke7 d6+ Kf6 d7 Bd5 Rb1 a1Q d8R Qaa4 Ra1 Qd3 Ra3 Qe4 Qh5 Qf4 Qg4 Bh1 d5+ Qad4 d6 Ke5 d7 Ke4 Qe2 Qc4 Qf2 Ba7 Qc5 Qd3 Q5b4+ Ke3 Rc8 Bd5 d8N Ra2 Qg7 Rcc2 Nc6 Qe4 Ncd4 Bb7 Rd8 Ne7 Rd5 Na8 Bc6 Rc8 Be8 R8c6 Rd8 Ng8 Ne2 Nc7 Qgc3+
1Q1Br3/qQ1b1Rp1/n2RRn2/Bq6/3N2n1/5qN1/1NKRp1k1/r1bBb1B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kd7 d4 Kd6 Kd2 a5 b4 e5 h4 c5 b6 g3 b5 a4 f5 c4 f6 a3 f7 g2 h5 c3+ Kc2 a2 h6 e3 h7 e2 b7 e1B b6 e4 Rh6+ Be6 Na3 e3 Nc4+ Kd7 d6 Kc6 d7 Kd5 Ne2 Ke4 d5 Kf3 d6 g1Q Nb2 Qc8 d8B Qc6 d7 Nf6 Ng3+ Kf2 Qd5 Bb4 f8R Bd2 Be2 Qb5 Rf7 Re8 h8R Qf1 Bd1 Na6 b8N e2 b7 Bh3 Qb3 Kg2 Ba5 Qf3 d8B Bd7 Nc6 Be3 Rb1 a1Q b8Q Bd2 Nd4 Be1 Nc6 Ba3 Nd4 Ra7 Be3 Ra8 Na4 Bc1 Bg1 Qa3 Rb2 Qac5 Kb1 Qa7 Rd2 c2+ Ka2 Ba3 Nb2 c1N+ Kb1 Nd3 Kc2 Nf2 Rg6 N2g4 Rhh6 Nh7 Rd6 Nhf6 Na4 Bc1 Nb2 Re3 Qd5 Ra3 Rg6 Ra1 Qb3 Nh5 Rge6 Nhf6 Qb7 Rb8 Bdc7 Rh8 Bd8 Re8 Qb8 Ra2 Qd5 Ra1 Qdb7
q1n2R2/1bk2p2/N1BRqN2/nb2qn2/4p1r1/2rRN2K/3QB2B/1RbN3Q b - - 0 1 illegal: No proof kernel
n1q5/q2BpQnb/r6R/p5Bq/1kQB4/Nn1RR1Q1/1b2bB2/2rN2KR b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 Kd6 f4 h5 Kf2 a5 b4 c5 f5 c4 g5 c3 f6 c2 g6 h3 b6 h4 b7 h2 f7 h3 g7 Ra7 b5 Rh4 b6 Qd7 Bg5 c1Q Bb5 Qc4 Qb3 Rh7 Na3 Na6 b8B+ Nc7 b7 Nh6 g8Q Ra6 Re1 Nf5 Re3 Ng7 Ba7 Na8 b8B+ Qdc7 Qa4 Bg4 Bd7 Be2 Bb6 Qc5 B8a7 Qc8 Qc4 Rh8 Nf3 Rh4 Ne1 Rg4 Nd3 Rg1 Nb2 Rc1 Nd1 Q5c7 Re1 h1B Kg1 Bhf3 Rf1 Bg4 Re1 Bf5 Rf1 Bh7 Rf6+ Ne6 Rh6 Bg7 f8Q Q7b8 Qff7 h2+ Kf2 h1Q Bc5+ Kc7 d6+ Kb7 d5 Qh5 Kg1 Bb2 Bd4 Ng7 Rh3 e3 Rh1 Bf3 Bac5 e2 Bf2 e1N Bcd4 Nf5 Qgg7 Nd3 Qe5 Nc5 Qg3 Kb6 Be6 Be2 d7 Qc6 d8R Qa7 d6 Qcc7 d7 Qc8 Rf8 Ng7 d8R Kc6 Rd5 Kb6 Rfd8 Kc6 Re5 Kb6 Re3 Kc6 Bc3 Kb6 Rdd3 Nb3 Qe4 Kc5 Bd4+ Kb4 Bd7 Qc2 Qee6 Qc8 Qc4+
B1RRN1r1/Kp6/b1B3qB/3B2r1/N1r5/3RnRn1/qbQn3p/qkNQ4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 h3 a4 c6 f4 b3 g5 b2 a5 h2 g6 h4 g7 h3 f6 Bg4 f7 Be2 a6 Nh6 g8B Qa5 a7 Qa2 f5 Bg7+ f6 Na6 f8N Nc5 Ne6 Ba6 Bg2 Ne4 Nc7 Ng4 Nc3 b1Q Qc2 Rh5 Na4 Ne3 Ne2 Rg5 Rf1 h1N Rf3 h2 d3 Rf8 a8B Nhg3 Bf7 Rg8 Ne8+ Kd7 d6 Nd2 Bd5 e5+ Kc5 e4 f7 Bb2 Kb6 c5 f8Q c4 d4 c3 Qd1 Qd3 Ka7 c2 Bc6+ Ke6 d5+ Ke5 d7 Qd4+ Qc5 Qd3 Nf4 Kf5 d8R Ke5 Qc4 Kf5 d6 Ke5 Qb5+ Kd4 Qf5 Kc4 d7 Kb3 Qh7 Qd6 Nd3 Qg6 Bh1 Ng2 Qh8 Rh5 Ng7 Nb1 Rc8 e3 d8R e2 Rf2 e1Q Bh6 Rg5 Qh5 c1R Ne8 Qg7 Qh7 Ne3 Bhd5+ Rc4 Qe2 Qf7 Rf3 Qe6 Qf1 Kc2 Qf5 Qg6 Qe4 Qb3 Ra3 Nd2 Qf5 Qa1 Nc1+ Re4 Qe1 Kb1 Qd1 Qba2 Rb3 Nc2 Ra3 Rh4 Qd3 Rc4 Qc3 Ne3 Rb3 Rh4 Qc4 Rhg4 Rd3 Rd4 Qc3 Rc4 Qcc2+
2rB2nn/rp1K1R1N/1N2R1kb/1r2B2b/2B1q2Q/NQ1N4/2pQ4/n1Bq1q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 e5 Ke4 h5 g4 c5 f4 h3 d4 h4 a4 h2 f6 b3 d6 c4 Kd5 c3 g5 b2 a5 h3 d7 e4 f5 e3 a6 c2 a7 e2 Na3 b1N Nf3 e1Q Bc4 Qf1 Qd2 Qg2 Rf1 Bh6 Kd6+ Kf8 g6 h1Q f7 Kg7 f8B+ Kf6 g7 h2 d5 Qg6 Ne1 Nc6 Nd3 Qde8 d8B+ Nce7 Rf2 Kf7+ f6 Qge4 Rf3 Kg6 f7 Qf1 Rf2 Rb8 a8N h1R Nb6 Ra8 Kc7 Rg1 d6 Rg5 d7 Rb5 Rf3 Qee1 Re3 Ra7 Re6+ Kh7 Kd6 Ng6 Bfe7 Qee2 Bf6 Qed1 Be5 Qe7+ Kc7 Qh4 Kd6 Qe4 Kc7 Nc3 Rb1 Na4 Rb3 Nc5 Rc3 Bg5 f8N+ Kh6 Kd6 Nb3 Nh7 Na1 Rb3 Kh5 Rb1 Bh6 Kc7 Nf6 Rb4 Rf8 g8Q Nh8 Qg3 Rg8 Qh4+ Kg6 Qc3 Bf4 Qb3 Bh6 Ra4 Re8 Ra6 Rf8 Re7 Ng8 Rf7 Bg5 Bdf6 Bd2 d8Q Bh6 Qd6 Bg4 Bd8+ Be6 Qdb4 Bg4 Qd2 Bh5 Kd7 Re8 Bdf6 Rb8 Bd8 Rc8 Na4+ Qf6 Rb6 Bg5 Re6 Bh6 Re8 Qf2 Nb6 Qff1 Re6+
r4N1B/p1bB4/1nBp4/1qR2n2/1b1Q2Q1/nK1N1qNq/3BQ2k/1RN3rb b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 g4 e5 c4 h5 Kc2 e4 b4 h3 g5+ Ke7 f6+ Ke6 c5 Kf5 b6 h4 b7 d3+ Kb3 d2 b5 d6 b6 e3 c6 e2 g6 Kg4 f7 Kg3 f5 e1B c7 h2 g7 h3 f6 Bf2 Bg2 Ne7 g8Q+ Bg7 f8B Rh6 f7 Be1 Nc3 Bg4 c8B Bd4 Bc6 Rg6 B8d7 Bf3 Bg7 Qe8 f8N Nf5 Qe2 d1N Rb1 Nde3 Bh8 Nc2 Bd2 Na3 Na2 Bc3 Qgc4 Bb4 Qd4 Qe5 Rc1 Qb5 Rc5 Bg2 Nc1 Rg4 Be6 Nd7 b8N Rg6 b7 Nb6 Bed7 Bf2 Nf3 Be3 Rd1 h1Q Ng5 h2 Na6 Be4 b8Q Qf3 Re1 h1Q Qc8 Qhg2 Rf1 Kh2 Rd1 Qh3 Re1 Bf3 Ne4 Bg5 Rd1 Bd8 Ng3 Bc7 Re1 Qf2 Rf1 Bh1 Rg1 Bc3+ Nb4 Rg7 Qeg4 Qf3 Qa6 Qa5 Nbd3 Bb4 Qac4 Qb5 Rf1 Re7 Rd1 Re1 Qe6 Rg1 Qe2+ Qf2 Na2 Qfg2 Rb1 Qf2 Nac1 Qfg2 Qd1 Qf3 Qe2+
2k1B2N/1b1bKn2/5Nb1/BQrR1Nrp/2R2p2/2QQ2nB/2Qq1nb1/4b1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 Kd7 Kg4 a5 Kf5 h5 e4 f6 b4 d3 c4 d2 g4 a4 c5 a3 e5 a2 g6 f3 c6+ Kc7+ e6 f2 b6+ Kd6 g5 d4 c7 d3 g7 Qd7 b5 Bb7 c8Q Qc6 e7 Rh6 e8B Qg2 g6 Ra6 Ne2 Ra3 Ng3 Rc3 Na3 Na6 Qc2 d1B Bd2 Nc5 Rc1 a1N Nc4+ Ke7 Be1 d2 Ne5 Ne4 Nf7 Nb3 Nh8 Nbc5 Qc6 Qh2 Bh3 Kd8 Rg1 Nd3 Ke6 f1B Nf5 Bd6 Rg5 Ndf2 Qd5 Ng3 Qdd3 Bdf3 Kf7 Bbe4 b7 d1B b8B B1g2 b6 Kc8 Ba7 Rc5 Ba5 Bb7 Qcc3 Bfe4 Rc2 Bg4 Ke6 Ne7 g8Q Nc6 g7 Rg6 Qh7 Ne5 g8N Nf7 Rc1 Bc7 Ke7 Rg7 Nfh6 f5 Nf6 f4 Rd5 Bd7 Nf5 Rg6 Qdc2 Rg7 Qg6 Ne2 Qgg3 Rg5 Qgd3 Be5 Rb1 Bc7 Rb4 Ng3 Rc4 Be5 Bb8 Bd4 Be5 Be3 Bd4 Bd2 Be3 Be1 Bd4 Nd1 Bg1 Nf2 Ne3 Bg6 Nf5 Bbc6 b7+ Kb8 Qa2 Ng4 Nh4 Bf1 Rcd4 Qd2 Qac2 Bg2 Nf5 Nf2 Rc4 Ka7 b8Q+ Ka6 Qd8 Kb7 Qb6+ Kc8 Qbb2 Bb7 Qb5
1k2B1nB/n1nn4/1B1n1R2/1pQ1b1Br/1RN1Q1K1/1brqQQ1N/b3pR2/8 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 d4 h5 a4 c5 g4 Kc7 d6+ Kd7 a5 h3 f6 b3 d5 h4 f7 h2 a6 c4 g5 h3 a7 b2 g6 e4+ Kg4 c3 f4 c2 f5 e3 f6 Na6 g7 Nc7 Nd2 b1N Ra2 Rh5 Bb2 c1N Nc4 Nc3 Qf3 Nb3 Be2 Be7 f8Q Nc5 f7 N3b5 Qe4 Rb8 a8Q Bf6 Ra4 b6 Rb4 Na7 Bd1 Ba6 Ba4+ Kc8 Be8 e2 Qc6 Rb7 d7+ Kb8 d6 Be5 Qe7 Bb5 f8R Ba4 Rf2 b5 Qe3 Bb3 Qce4 Ba2 Qf6 Rb6 Qff3 Ra6 Bc3 Ra3 Ba1 Rc3 Bb2 Qe7 d8B Nd7 Qc5 Qf7 Bg5 Qd5 Qee3 Qd3 Ba1 Ne7 g8Q Bb3 Qgf7 Ng8 Qfe4 Ba2 Nf3 Bb3 Rhf1 h1N Ng1 h2 Qff3 Ng3 Nh3 h1B Bb2 Nf5 Ba1 Nf8 d7 Nd6 d8B Nd7 Bb2 Na8 Bb6 Nc7 Qg3 Bg2 Rf6 Ba2 R1f2 Bh1 Q4f4 Be4 Qgf3 Bd5 Q4e4 Bf7 Na3 Bfb3 Nc4 Nd5 Ba1 Nc7 Qg2 Bd4 Rg6 Rc2 Qgf3 Bg7 Be5 Rc3 Re6 Bf8 Bh8 Bg7 Rg6 Be5 Rf6
n3b2Q/4k2r/Q1B2QpR/1Q3bpR/1Nq4r/Kn2B1B1/1Rr1rb2/4rNR1 b - - 0 1 legal: proof: f4 b5 g4 e5 a4 exf4 axb5 d5 c4 h6 g5 hxg5 cxd5 Ke7 Ra4 Kd7 Ra1 Ke8 h4 c5 b4 a5 e4 f5 d4 a4 Kd2 c4 Kc2 c3 h5 f3 e5 f2 b6 a3 Kb3 f4 e6 f3 d6 c2 b7 g6 d5 a2 e7 Kd7 h6 Qe8 b5 Qf7 b6 Qe8 h7 Nh6 Bg2 f1R Nc3 f2 Qe2 Nf5 Rh5 Nc6 b8R Re1 b7 f1B Be3 c1R Nf3 Ra7 Nh2 Nb4 Qa6 Qf7 Ka3 Be2 Nf1 Rc2 Rc1 a1R+ Na2 Bb5 e8R Rg8 h8Q Nd4 Re4 Ba4 Reh4 Nb3 Bh1 Ke8 d7+ Ke7 Rd1 Ree2 d8B+ Kd7 d6 Qc4 Rh2 Nd5 Bc7 Nb6 Bc6+ Ke6 Rh6 Na8 R2h5 Kf7 Re1 Bf5 Rc1 Bg7 d7 Ke7 Bg3 Bd4 Re1 Rac1 Nb4 Re8 Rd1 Rh2 Re1 Rh4 Rd1 Re2 Re1 Rcc2 d8Q+ Kf7 Qdb6 Re6 Rb1 Ke7 Rb2 Bc5 Rd8 Bb5 b8Q Rc7 Rd1 Rb7 Be4 Be8 Bc6 Re1 Qbb5 Bb6 Qf4 Re4 Bd2 Bf2 Ra1 R4e2 Be3 Ke6 Rab1 Rh7 Rc1 Ke7 Qfe5+ Kd8 Qef6+ Re7 Bg2 Rd1 Nh2 Rf1 Bc6 Rd1 Qfe5 Rh7 Qc3 Ke7 Qcd4 Rd3 Rg1 Rd1 Nf1 Rde1 Qdf6#
2R1b1rQ/rB1b3p/pbb1R1kB/N1NRQn2/2NQb3/4N3/nR3K2/1q4r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 f5 b4 Kf7 e4 c5 g4 c4 b6 c3 e5 c2 e6+ Kg6 b7 f3 e7 f4 e8R a6 d6 h3 b5 h2 d7 Qe7+ Kf2 Qf6 d8N Bh6 g5 Nc6 b8N Qe5 b6 Bh3 b7 Na7 d5 Bf8 d6 Qe7 d7 Bg4 Ra5 Qf7 Rd5 Qg7 Qd4 Nh6 Nbc6 Bc5 b8Q Rg8 Na3 Nf5 Qe5 Bb6 Nb7 Nb5 d8Q Ra7 Re7 Nc3 Nh3 Na2 Nc5 Qh6 Rg1 h1B Nc4 Qf8 Be3 c1R Bg2 Ra1 Qa8 Qb8 Rb1 Qb7 Rb2 Rg1 N6a5 Bh5 Rd8 Qe4 Rd5 Qb1 Bf1 Rg7 Qh8 Rg8 Bc1 Bg4 Ke1 Bg2 Nf2 Bh1 Nd1 f2+ Kd2 f3 Nde3 Bh5 Bg2 f1B Ke1 Bd3+ Kf2 Be4 Bd2 Bg4 Bc1 Nd6 Bd2 Bd7 Bc1 Nf5 Bd2 Kh5 g6 Be8 g7 Kg6 Bc1 Nd6 Kg3 f2 Bd2 f1B Kf2 Nf5 Bc1 Rf8 Bf3 Bh3 g8R+ Ng7 Bd2 Bhd7 Bc1 Rf4 Rf8 Rfg4 Bg2 Nf5 Bd2 Bf7 Rc8 Bfe8 Nc2 Kh5 Rd6 Bf3 Bh6 Rg8 N2e3 Ba8 Bc6 Be4 Rd5 Kg6 Bb7 Bb5 Bc6 Bb7 Ra8 Bc8 Bb7 Bcd7 Rc8 Bbc6 Re6+
K3Q3/2b1p3/2r1pQbk/R1n3R1/1N3nBq/N3N1Rn/1R2n1rQ/2B1Nnr1 b - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 Bb7 cxd5 Ba6 h4 gxh4 e5 Bc8 e6 fxe6 Ke2 Kf7 Ke3 Kg6 Kd4 h5 Kc5 a5 g4 h3 d4 a4 f4 a3 b4 c6 f5+ Kg7 g5 h4 f6+ Kg6 d6 a2 d5 h2 b6 h3 f7 Rh6 b5 Bg7 f8Q Nf6 b7 Qa5 d7 Qd8 d6 Ra7 b6 Rh4 Qd2 Nh5 Be2 Nf4 Na3 Be5 Nf3 Rg4 Rg1 h1N Rg3 h2 Ne1 Nf2 Qf6+ Kh7 g6+ Kh6 Qb2 Qh8 d8N h1N d7 Bc7 g7+ Rg6 g8Q Ra6 Bg4 Nh3 Qe8 Qh7 Qh2 Qh8 Rb1 a1R Rb2 Ra2 Rb5 Rg2 Ra5 Rg1 Rf3 Ng3 Nf7+ Kh7 d8R Bd7 Ne5 Kh6 Rc3 Nf1 Rg3 Rg2 Nec4 Qh7 Qeh8 Be8 Ne3 Bf7 Rg8 Nd7+ Kb4 c5+ Kb5 c4 Kc6 c3 b8R c2 Kb7 Ne5 Rg7 Ned3 Qe8 Qh8 Ra8 Rg1 Ra7 Nc5+ Ka8 Qh7 b7 Rc6 b8N Rg2 Na6 Rg1 Bb2 c1N Rb7 Nce2 Bc1 Qh8 Rb2 Rg2 Qc3 Rg5 Nb4 Bg6 Rf7 Qd4 Rf5 Qe4 Qf6 Qc4 Bh5 Rg4 Rg5 Rg1 Rf3 R4g2 Bg4 Qd4 Nec4 Qf2 Ne3 Qh4 Rg3
2n1Qb2/Bbp2N1R/2N4q/Q1Q3B1/K2R1bN1/3n1p2/n3Bb1N/Q1b1r1kr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 f5 Kb3 a5 h4 g5 e4 f3 e5+ Ke7 b6 g3 e6 Kf6 e7 g2 e8Q g4 d6 f2 d5 g3 b7 f4 h5 Kf5 h6 f3 d7 Kg4 h7 Nc6 b8N Nb4 d6 Bb7 Nh3 g1B Be2 f1N Nc6 g2 Qd5 Kg3 Nf2 Nh2 Qc5 Ne7 Bg5 Na2 Ka4 Nc8 b4 Qf6 d8Q Qh6 b5 Ng4 d7 Bh2 b6 g1B Nd2 Kg2 Rd1 Bf4 Nf1 Ne5 Rd4 Nd3 Ng4 Bf2 Nfh2 Bc1 Qf6 Ra6 d8N Bf4 Ka3 a4 Nf7 Ra5 Qfd6 Rb5 Qde7 Rb1 Qa5 Re1 Qec5 Ndc1 Kb2 a3+ Kc2 Nd3 Kb3 Bc1 Ka4 Bf4 Nf1 Bc1 Rh3 Kg1 Nfh2 Nab4 Rh5 a2 Rh4 a1B Rh3 Ba8 b7 Na2 b8B Bb7 Ba7 Bc3 Rh4 B3d2 Rh3 Bf4 Rh5 Rg8 h8Q Rg7 Rh4 Rh7 Qf6 Rh8 Rh5 Qg7 Rh7 Qh6 Qg7 B4e3 Nf1 Qh3 Re4 Bed2 Rh6 Qh1 Qa1 Bf4 Rd4 Qh5 Rh7 Qg6 Rg7 Rh1 Rh7 Qh6 Nfh2
1rNN1R2/KnBb1n2/Q2brr2/1B2Q3/4Bp1R/4n2B/6pQ/RbbQ1kq1 b - - 0 1 illegal: No possible last move
1KQ2RBQ/1bBNN1q1/1r2R1nQ/1r6/kRBp1bp1/5n1R/1B5r/4b1nn b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 Kd3 d5 h4 Kd7 c4 e5 b4 g5 f4 a4 b6 Kc6 b7 g3 h5 g4 c5 Kb5 h6 g2 c6 a3 f6 a2 f5 Ra4 f7 Qd6 h7 Na6 b8B Bg7 f8Q Qg6 c7 Bf6 Rh3 Qf7 Bb2 Qd7 Qd2 Be7 f6 Bb7 c8B Bd6 f7 Qc7 Be6 Ra5 Qc8 Ne7 f8R Ng6 Qh6 Ka4 b5 Qg7 b6 Rb5 Bc7 Nb8 Nf3 g1N Bg8 Nd7 Be2 Bc6 b7 e4+ Kd2 d3 Ke3 d2 b8R Nde5 Kd4 d1N Bc4 e3 Nc3+ Kb4 Rb7 Nf2 Re1 a1R Rb6 e2 Rb8 Ned3+ Ne5 Nh1 Rb7 Ra6 Rb8 Qe7 Nd7 Bf4 Rb6 Bb7 Re6 Ra1 Rd1 Nde5 Rdd3 Qf6 Rde3 Rb6 Reg3 Ka5 Kc5 d4 Nd5 e1B Ne7 Ka4 Rb3 Rb5+ Kd6 Qg7 Bb6 Rc1 Kc7 Rb1 Kb8 Nef3+ Bc7 Rd1 Rb6 Rd2 Re6 Rh2 Bf7 Rg8 h8Q Rb6 Rd8 Rf8 Bg8 Rf5 Rf8 Rfb5 Rb4+
1b1Bn1k1/Q2RqBn1/1r4rn/1n1pN2B/2p3Q1/2R2B2/KNb2RbN/4R2r b - - 0 1 illegal: No possible last move, all moves rejected
3Nb1Rn/r2Q1Rn1/2Rp2Q1/N1N1b3/1K1QQ3/4r1pb/1k2qN1B/3n1Brr b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 b4 Kf6 c4 Ke5 f4+ Ke4 h4 g5 f6 e5 c5 a5 c6 d6 f7 d3 Kc3 d2 h5 g3 h6 g4 f5 a4 h7 a3 f6 g2 b6 a2 c7 Nh6 b7 Qe7 b5 Be6 c8Q Nd7 b8R Ra3+ Kb4 Kd4 b6 e4 b7 e3 Qe2 d1B Nh3 g1R Nd2 Qe8 Nf2 Nf5 Nde4 Ba4 Nc5 Ne5 Qd7 Bg7 f8Q Ng6 f7 Be5 Qh6 Ng7 f8N Rc3 Qe1 e2 Bf4 Re3 Rc1 a1R Bh2 g3 Qh5 Bh3 Nfe6+ Kd5 Nd8 Kd4 Qg5 Bc6 Rc8 Ra7 b8N Qe6 Rc2 Qg4 Qb1 e1N Rc7 Bb5 Rb7 Qe2 Nbc6+ Kd5 Qge7 Ng2 Na5 Kd4 Rc3 Rf3 Qee6 Ne3 Rc2 Nd1 Qee7 Rg8 h8Q Re3 Qf6 Ba4 Qh6 Nh8 Qhg6 Bb3 Rc3 Bf7 Rc7 Be8 Rc6 Re4 Rf3 Rf8 Qh4 Rf5 Qhg4 Rh5 Rf7 Rh6 Ka3 Kc3 Qf4 Rb4 Qbe4 Rb3+ Ka4 Rh7 Qfe3+ Kb2 Q3d4+ Rc3 Kb4 Bf5 Bh3 Rg2 Bg1 Be6 Rf8 Nf7 Rg8 Nh8 Ng4 Rf2 Rh2 Rf1 Rf2 Re1 Bg2 Rh1 Bh2 Reg1 Rf7 Bf5 Nf2 Bh3 Qc4 Rf3 Bf1 Re3 Qcd4+
6K1/RN1nR1bp/1nbQNN1Q/R1rp3r/2b2BBR/5q2/2rkN2n/1Q1b4 b - - 0 1 illegal: No possible last move, all moves rejected
1Qq5/1B1qRK2/3QN3/1nq1r3/q1N1pBb1/b5R1/N1Qqprn1/3BkN1Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 b4 e3 f4 a4 g5 a3 g6 c6 f5 h3 b6 h2 g7 h4 b7 e6 f6 h3 b5 a2 b6 e2 f7 Qe8 Nf3 Na6 b8Q+ Nc7 b7 Qe7 Ne5 Nh6 g8B Qd7 Qc2 Ng4 Rg1 h1Q Rg3 h2 Bg2 Ra5 Qa8 Qe1 b8Q h1Q d3 Qh4 Nd2 Qh3 Nf1 c5+ Ke4 c4 d4 c3 Bf4 Be7 f8N Qd2 Rb1 a1Q Rb7 Qaa4 Ra7 Bg5 Bf7 Ne3 Nc4+ Ke7 Ke5 Nb5 Bh1 Ng2 Bg6 Rh6 Bf5 Rf6 d6+ Kf7 d5 Kg7 Qc6 Kh6 Bd3 Kh5 Rb7 Qf7 d7 Kh4 d8N Qd7 d6 Rf7 Qd5 Be7 Nc6 Qg4 Nb4 Qh3 Be3 Rf2 Bf4 Qg4 Na2 Qg5+ Ke4 e5 Ne6 Qg8 Kf5 Qh8 Qc1 c2 Kg6 Qhd8 Qb2 c1Q Kf7 Q8c7 Bc2 Qc5 Bd1 Qcc2 Ra3 Kg4 Qe4 Qcc3 Qh7 Kf3 Qbc2 Q5e3 Rc7 Qd8 d7 e4 Nb2 Nd4 Ng7 Re5 Qa7 Nb5 Qb8 Qcd4 Rac3 Ba3 Nc4 Qc5 Rb7 Qed3 Rb3 Qh8 d8Q Bh3 Re7 Bf5 Nfe3 Rf1 Qdc7 Qdd8 Qd6 Kf2 Qh3 Ne1 Bg2 Bc8 Qh1 Bf5 Bf3 Ng2 Bg4 Ke1 Bh3 Bc8 Bd7 Qdc7 Bc6 Bg4 Ne6 Qd7 Bb7 Qhd8 Qh2 Rf3 Nf1 Q8c8 Qh1 Rf2 Rg3
2Q1r3/Nb5R/1NrNqp2/1r1QR1kr/pn2R2n/2q4B/NrQ2Q2/2BKb3 b - - 0 1 illegal: No possible last move
2NqQnK1/2k3n1/R1qp1b1r/rR3QB1/3qpQBq/3B3b/2Q2R2/N1q4R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 h5 Ke4 a5 Kd5 d3 f4 e4 g4 d2 c4 a4 b4 a3 g5 h3 b6 h4 g6 a2 b7 h2 c5 h3 g7 Qh4 f6 Kd8 f7 Qf6 c6 Nh6 g8Q Qg5+ f5 Kc7 b5 Qh4 b6+ Kd8 c7+ Ke7 Nc3 Ra4 Qc2 d1Q+ Bd3 Ra3 Nge2 Qhe1 Nd4 Qg1 Na4 Qf2 Nb3 Bg7 f8R Qh4 Bg5+ Bf6 Qg6 d6 Qh5 Nd7 b8Q Qg1 b7 Qc1 Nb6 Ra8 Qg4 Ra7 Qf4 Ra5+ Qc5 Qc2 Rf7+ Ke8 Ke6 Qc3 Qcf2 Qc6 Qc2 Rh7 Qa8 Rh8 b8R Rh7 Raf1 a1Q Rf2 Qd4 Na1 Rh8 Rb7 Rh7 Ra7 Rh8 Ra6 Rh7 Rb1 h1Q Rb5 h2 Rg7 Rh8 Rh7 Qc1 Qb8 h1Q Qa8 Bd8 f6 Nf5 Rh5 Rh6 Qb8 Bb7 c8B Be7 Qa8 Kd8 Kf7 Kc7 Kg8 Nf8 f7 Ng7 Bg4 Bf6 Qe8 Bc8 Qf5 Bd7 Nc8 Q1h2 Qee6 Qhe5 Qe8 Qe7 Qf4 Qd8 Qf5 Qg3 Rh1 Qh4 Qf4 Nh7 f8Q Bf5 Bh5 Bd7 Qff7 Nf8 Qd5 Bg4 Qdf5 Bh3 Bg4
1r1Qrnqk/1Q1bR1q1/2nB4/2QN2B1/q6R/1QBq2b1/2bp2Kp/2NB2N1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 Kf7 g4 Kg7 f4 h5 Kf2 e5 c4 a5 c5 d5 c6 d3 g5 e4 b6 h3 b7 h2 g6 a4 b5 d2 f6+ Kh6 f7 Kg7 b6 a3 f5 d4 c7 a2 Qb3 d1B Nd2 d3 Be2 e3+ Kg2 Bd7 c8Q h4 Qc5 Bc2 Bd1 Nc6 b8B e2 b7 e1Q Bd6 Qe5 b8Q Nf6 Q8b7 Rb8 Rb1 Nh7 f6+ Kh6 g7 a1Q Bb2 Qa4 g8N+ Kg6 Bc3 h3+ Kf2 Bh6 f8B Bf4 f7 Qg7 Bfe7 Nf8 Bg5 Kh7 Ne7 Bg3+ Kf1 Rg8 Nd5 Kh8 Ra1 Qg4 Ra7 Qa4 Nc4 d2 Ne5 Qe8 Nd3 Qee4 Nc1 Qd3+ Nge2 Nh7 f8Q Re8 Rg1 h1Q Qf6 h2 Qd8 Qhe4 Rg2 Nf8 Rf2 Qh7 Kg2 Ne6 Rf4 Rgf8 Ng1 Qg8 Qda5 Rb8 Qd8 Re8 Re4 Nf8 Re7 Qab5 Ra4 Qa6 Rc4 Qa4 Rh4+
2R5/bBn1N2B/4Nb1k/3qBn1b/R2rrqN1/4B2R/2p3p1/rRKQQ2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 h4 Kf7 e4 Kg6 b4 c5 e5 c4 b6 f3 h5+ Kg5 h6 f4 d6 f2 d5 a4 b5 f3 e6 g6 b7 a3 d7 g3 d6 a2 e7 g2 e8B Ra4 b6 Na6 b8Q Ne7 h7 Bb7 Rh3 Bg7 Bd3 f1R Nc3 f2 Nd5 Nf5 Ne7 Bf3 b7 Bh5 Nf3+ Kh6 Nh2 g1B Qe1 Rg8 h8B g5 Bg6 g4 Be4 g3 Bh7 Bd4 Be5 g2 Qa7 Rh8 b8R Nc7 Rbb1 Re8 Bb7 Bb2 Qa8 c3+ Kc2+ Rf4 Qa4 Qa8 d8N Qa5 d7 Qd5 Qe3 Rd1 Ne6 f1Q Qe1 Ba7 d8R Rh8 Qb3 Rd4 Be3 Qfc4 Bg1 Rfe4 Rc8 Qf1 Be3+ Qf4 Qa4 Rd3 Rd1 Rdd4 Rab1 Ba1 Kc1 c2 Qd7 Bc3 Rd3 Ba1 Ra3 Bc3 Ra6 a1R Ra4 Rb4 Bd6 Bf6 Be5 Rbd4 Qb5 Rg8 Qbf1 Rg3 Qh1 Rf3 Qhg1 Rf1 Qd1 Re1 Qf2 Rf1 Qfe1 Rh1 Ng4+
3K4/B1nBR3/1R1qQ2b/r2Nnk1N/rnr2r2/1Q3B2/p1RRp1Nq/3N1b2 b - - 0 1 illegal: No possible last move, all moves rejected
2k2q2/Nnb3q1/r3rN1N/1Rn2bB1/r2R1RN1/2np2R1/QQ1Kpn2/1B2B3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 Kd7 f4 a5 b4 e5 f6 h5 g5 e4 f5 a4 f7 h3 g6 e3 c5 d3 f6 a3 g7 h2 b6 a2 b7 h4 c6+ Kc7 b5 h3 b6+ Kd6 c7 Kd7 Qd2 d4 Nc3 Na6 b8N+ Kd6 b7 Rh7 Nd5 Bd7 c8R Rh6 Rb1 a1Q Nc6 Bf5 b8Q+ Kd7 Qa2 Ne7 g8N Nc5 Qbb2 Ra6 Nf3 d2+ Kd1 Rg6 Rg1 h1N Nh6 h2 Bd3 e2+ Kc2 d1N Rg3 Ra4 Bg5 Nhf2 Kd2 h1R Nh2 Nc3 N2g4 Bg7 Rd1 Qf8 Rb8 Nc8 Bb1 Nd6 Rb3 Kc8 Rb5 Qg8 f8B Ndb7 f7 Re6 Bd6 Be5 Ndf6 Qf8 Bc7 Ra6 Ba5 Bc7 Bb4 Qd8 f8R Rh4 Rf1 d3 Ba5 Nh3 Rf4 Nf2 Rf7 Qf8 Rd7 Re4 Rd6 Ra4 Rdd4 Rh3 Rg2 Re3 Rg3 Re6 Kc1 Nd5 Be1 Nc3 Kd2 Bh7 Ne8 Qf6 Rc4 Qf8 Qbb3 Ncd1 Rce4 Qe5 Qbb2 Nc3 Rd4 Qeg7 Nef6 Bf5 Na7+
1rN4r/K1Q1r1b1/1BRnNN2/2Q3NB/kB1nQR1q/p5q1/1n1p4/4rQ1b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kd3 Kd7 g4 a5 f4 e5 c4 h5 b4 h3 f6 a4 f7 h2 g5 a3 b6 Kc6 g6 h4 b7 h3 f5 Qa5 b5+ Kc5 f6 Kb4 b6 Bd7 c5 Be6 c6 Qa7 c7 Bc8 g7 Rh5 Nd2 Bg4 c8N Rh7 Ne2 Qa4 Nf4 Ne7 g8N Bf3 Be2 Bg7 f8Q Nc6 f7 Rb8 Rf1 h1R Nf6 h2 Ne6 Rg1 Rf2 h1R Nde4 Re1 N4g5 Ka5 Rf1 Nf5 Be3 Nd6 Rc1 Qb3+ Rc3 Ka4 Qc2 Bg2 Bh5 Rh4 Bg1 Bh1 Rf4 Rh8 Qe2 Rg4 Qf1 e4+ Kd2 e3+ Kd3 e2 Be3 Ne4 Qc5 Nd6 f8Q Rh4 Qe8 Qb4 Qg6 Re8 Qe4 Re7 Bf3 Rh8 Bh5 Ra1 Rc1 e1Q Bd2 Qh4 Bc3 Qb2 Bb4 Qbh2 Rc4 Re1 Rc2 Ra8 b8Q Qg1 Qc7 Rb8 b7 Qgg3+ Kd2 d3 Kc3 Nd4 Rc1 Ra8 b8B d2+ Nf3 Qgh2 Ba7 Rb8 Nfg5 d1N+ Kd3 Nb2+ Kc3 Nf3 Bb6 Q2g3 Rc2 Nd2+ Kd4 Nb3+ Ke5 d4 Kd5 d3 Kc6 d2 Rc3 Nf5 Rc1 Ra8 Kb7 Nbd4 Rc3 Rb8+ Ka7 Nd6 Qcd5 Rh7 Rc6 Rh8 Qc5
1rNK4/4R2R/kB3N1B/3b1n2/2Bb3p/1B2nRnb/p1rQQ1q1/qQQ1b3 b - - 0 1 illegal: No possible last move, all moves rejected
B1NN1q2/1B1b1rbk/bKN5/R1B1p3/1p2B3/1nQ1Rn2/1qQ1R1R1/1b1nr3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kg7 Kc4 e5 Kb5 h5 f4 c5 a4 h3 g4 h2 d4 b3 f6+ Kh6 a5 h4 a6 b6 a7 h3 g5+ Kh7 f5 b2 d6 c4 f7 c3 f6 c2 d5 Be7 f8Q Qe8+ d7 Na6 d6 Qg6 d8N Bb7 f7 Bd5 d7 Bd6 Nc3 b1B Nge2 Qg7 Ba3 c1N Nd4 Nb3 N4c6 Nh6 Rg1 h1B Ne4 h2 Qc2 Nb4 Bg2 Nd3 Bc5 Ng4 Ra5 Ngf2 Qc3 Rc8 a8B Be6 Qe7 Ne1 f8R Nd1 Rf2 Rc7 Re2 Nf3 g6+ Kh6 Qf6 Qf8 g7+ Kh7 Re3 Be7 Nd6 Bg4 Qg5 Bf6 Nc8 Bgf5 Ka6 b5 Kb6 b4 Re2 Bfd3 Qgd2 Ba6 Rge1 Rg8 Re3 Rh8 R1e2 Rg8 Nb7 Rh8 d8R Rf7 Rd6 Rg8 Nbd8 Rh8 Bh3 Bg2 Bd7 Bh3 Qdc2+ Bf5 Be6 h1Q Bd5 Qh2 Be4 Qg2 Re1 Qd2 R1e2 Qc1 Re6 Qb2 g8B+ Kg7 Qd4 Rh1 Qdc3 Re1 Bb7 Kh8 Ba8 Bg7 Rg6 Rd7 Bgd5 Kh7 N6a7 Re7 Bdb7 Rf7 Nac6 Bd7 Rgg2+
1R2bN2/K1B1b3/RQ1QB2r/r2pn3/1Nnk4/2Rr3B/q1q3p1/1rBq2RQ b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 f4+ Ke4 h4 g5 b4 d5 c4 a4 h5 d3 h6 g3 h7 d2 b6 g4 b5 a3 f6 a2 f5 g2 f7 g3 f6 Bd7 b7 Bg7 f8Q e5 f7 Ra7 b6 Nf6 Qb3 d1R Qd6 Ra4 f8R Bh6 Nh3 g1R Na3 Qe8 Nf4 Rd3 Bh3 g2 Ne6 Nc6 b8B Bg5 b7 Qc8 Kb6 Na5 c5 Be8 c6 Ng4 c7 Be7 Nc2 Rgd1 Ka7 Nc4+ Qa6 Re1 Qb6 Ra5 Nb4 Red1 Rg1 Rf1 Nc5+ Kd4 Rf3 e4 Qd6 e3 Nd7 e2 Nf8 Qf5 c8B e1Q Bc7 Nge5 b8R Qd1 Rg3 Qf2 Bce6 Qfc2 Re3 Rg8 h8Q Rg6 Rf3 Rh6 Qh7 Rd2 Rc3 Rd3 Rb1 a1Q Qh8 Qab2 Ra1 Rc5 Ra5 Qa2 Qac6 Rb5 Ra6 Ra5 Bhf5 Rg6 Qh1 Rh6 Bh3 Qde2 Bb2 Rb1 Bc1 Qed1 Qb6+
1n1R4/1bbB1r2/7Q/B1Rpqrq1/3Q2pQ/kbnK2N1/NNB2B2/N3q1q1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 h4 e5 f4 Ke7 c4 Kd6 b4 g5 c5+ Kd5 b6 Kc4 c6 d5 f6 g3 f5 g4 b5 Kb4 c7 e4 h5 e3 b7 a4 f7 a3 h6 a2 b6 g2 f6 Ra5 h7 Ne7 Na3 Rg8 h8Q Ra6 Bd2+ Kc5 Kd3 e2 Nc4 e1Q Rc1 a1Q Ba5 Rg7 Qh4 Kb5 Nb2 Rg5 Ne2 g1Q Ng3 Nd7 b8N Bb7 c8B Ng8 Nc6 Qee8 Nb4 Bg7 f8B Qb1+ Nc2 Ra7 f7 Ngf6 Bc5 Qe5 f8Q Ne4 Bg2 Nc3 Be4 Bf6 Qfh6 Nb8 Bh7 Rf5 Bd7+ Bc6 b7 Qge1 Nc4 Ka4 Nb2+ Kb3 Rf1 Be7 Rf2 Bd6 Rf4 Bc7 Bcb6 Qa2 Na1+ Ka3 Re4 Qb1+ Rc2 Na6 b8N Bb7 Nc6 Nb8 Nb4 Qg5 Na2 Qg1 Qd2 Qbe1 Qe3 Ra6 Ba7 Raf6 Rc1 Rf7 Qf4 Qeg7 Re8 Qge5 Rd8 R5f6 Bhf5 Ne2 Rc4 Nc3 Be4 Rf5 Kc2 Qef1 Kd2 d3 Bf2 Qb1 Ke3 d2 Rc5 d1B Kd2 Bb3 Bc2 Qbc1+ Kd3 Qce1 Qd4
5B1b/2Q5/bqn1N1Kn/pRrbR2r/qN1q4/qk1QBNQ1/1N2p2B/5B2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 f4 a5 g4 c5 d4 h5 d6 e5+ Kg6 c4 d7 c3 f5 e3 d5 h3 d6 c2 g5 h4 f6 e4 b6 e2 f7 e1Q b7 h2 Nd2 e3 Nc4 h3 Rb1 e2 Qd3 Nc6 b8Q+ Qb6 d8N Qd2 d7 Ra7 Qc7 Qde3 Nf3 Nd4+ Ne6 Nc6 d8N Be7 f8B Qed4 Be3 c1Q b3 Bd6 Nb2 Ba6 Rg1 Ka3 b4+ Ka2 b5 h1Q Rg4 h2 Re4 Nh6 Re5 Rh7 Qb8 Qa4 Qc7 Qbd4 b6 Qg1 b7 h1B b8B Qf2 Nc4 Qca3 Rbb5 Bb4 Nb2 Bc3 Kf6 Ra8 g6 Ra7 g7 Qg1 Qf7 Rc7 g8Q Rc8 Qg3 Qb6 Bec5 Qgd4 Kg6 Rh8 Qc7 Rh7 Nh2 Bd5 Nf3 Rh8 Bb4 Kb3 Bbc5+ Qdb4 Be3 Qd4 Rc5 Qb6 Rb5+ Qa4b4 Rg5 Na7 Qg2 Nf5 Qe7 Qh4 Qg7 Rc5 Qb7 Rh5 Nc6 Nh6 Bh2 Qg4 Qc7 Qh4 Qf5 Bh8 Qgg3 Qd4 Qe4 Ka2 Qf5 Qba4 Nb4+ Kb3 Qe4 Nc6 Re5 Rc1 Qb1 Rc5 Qd3+
3Q4/1b3n1k/N1QpR3/p1B1R1q1/B4bq1/1R2n1n1/KNRr1b2/2NbBrN1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kg7 c4 a5 Kc2 e5 Kb3 h5 f4 d3 b6 d2 g5 h3 b7 e4 c5 e3 f6+ Kh7 c6 e2 f7 e1B c7 h2 g6+ Kg7 f5 h4 f6+ Kh6 g7 h3 Nc3 Ne7 g8R Ra6 Qc2 Bh4 Rg2 Rd6 Nce2 Nf5 Ka2 Ng3 b4 Ne4 b5 Rb6 Qc6 Bg7 f8Q Kh7 f7 d1B Bd2 Qg5 Be1 Nd6 Qd8 Rf8 Nc1 Na6 b8R Bh6 Rc2 Bb7 c8N Nc7 Bg2 Ra6 Nb6 Nd5 Nc4 Ne3 b6 Bf2 Nb2 Qg4 Bf1 Bf4 Bb5 Qg5 Ba4 Ra8 Qf6 Rd8 f8B Nf7 Ba3 Rf8 Re8 Rd8 Rb1 Qg4 Re6 Qg5 Nf3 Qg4 Rf1 h1N Ng1 h2 Bc5 Ng3 Qg5 h1Q Qe7 Rde8 Qd8 d6 Re5 Qhh5 Re6 Bc8 b7 Qhg5 b8N Bb7 Re5 Re6 Na6 Rf6 Bd2 Re8 Re1 Rf5 Re2 Rf8 Re6 Rd5 Be1 Rd2 Nc4 Rg8 Rb3 Rg6 Re5 Rh6 Nb2 Rh1 Nh3 Rg1 Re6 Rf1 Ng1 Ng2 R2e4 Ne3 R4e5
2qNQ1n1/1n4pR/6B1/Bk1Nrbn1/2rQ3Q/2rr2NB/1pQ5/2bqB1KR b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 a4 e5 d4 b5 f4 c5 Kf2 c4 a5 b3 f6 c3 f7 b4 a6 e4 a7 b2 h5 b3 f5 c2 f6 Be7 f8B Bc5 d6 Kc6 h6 Rh7 d7 Be7 f7 Qe8 d8Q Bf5 Bd2 c1R Ne2 g3+ Kg1 g2 d5+ Kb5 d6 e3 d7 Nc6 Ng3+ e2 Be1 Rc3 Qc2 Bg5 Bb4 Rc8 a8B Bc1 f8Q Na5 Be4 Nb7 Ba5 R8c4 Bd3 Qe6 Qfe8 Qc6 Qf6 Qc8 Qd4 Rh8 Be4 Rd3 h7 Rcc3 Kh2 g1N Bh3 Nf3+ Kg2 Ng5 Kg1 Be6 Bg6 Bf5 Qee4 Rc4 d8N Rcc3 Qh4 Rc4 Nd2 b1Q Ndf1 b2 Ne3 Rdc3 Qce4 Qd3 Nd5 Qd1 Qc2 Ne7 Nf7 Rd8 h8Q Rd7 Nd8 Ng8 Nb4 Rd5 Ra3 Re5 Nd5 Ree3 Ra4 Red3 Ra1 Ne7 Qf8 Ng8 Qe8+ Qd7 Ra4 Nc5 Qhe4 Qc6 Qde3 Nb7 Qg4 Rc5 Rd4 Qd2 Bf2 R5c4 Rf4 Qd7 Qd4 Qc6 Qh5 Qd7 Rh4 e1R+ Bf1 Ree3 Bh3 Re5 Be1 Qd1 Qhg4 Qc6 Rh7 Qd7 Qh4 Qc6 Qf7 Qc8 Qe8+
1B4N1/1nKRRqpr/bpB1QnQ1/1Nb4k/6r1/7r/b1QBNQ2/3q2bB b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 b6 d4 b3 a4 c4 f4 c3 h4 b2 f6 Kg6 h5+ Kh6 d6 g3 f5+ Kh7 f7 c2 d5 e4 a5 e3 a6 Kh6 d7 g2 a7 Qe7 d8Q Nf6 d6 Rg8 d7 Ne4 f6 Na6 Kc6 Nec5 Na3 b1B Ne2 g1R Qe8 Rg5 d8B Nb7 Bc7 Be6 Bb8 Nbc5 Bd2 c1B Nb5 Nd7 Bg2 Nc7 Qc2 Bh3 Re1 Nc5 Bh1 Bf1 Qd7 Ba2 Qe6 Ba3 Rab1 Rg4 Rbd1 Kg5 h6 Ne8 h7 Nb7 h8Q Bc5 Qhh7 Rh8 Qhg6+ Kh4 Bc7 Rd8 a8B Rd3 Bb8 Rh6 Bb4 Rb3 Rd7 Rh7 Bd2 Rc3 Qe5 Qe6+ Qd6 Be7 f8N Qf7 Qe6 Rb3 Rd5 Bed6 Nd7 Bh2 Rd3 Bg1 Rd4 Qe7 f7 Nf6 f8Q Qf7 Kc7 Rd3 Qgf5 Rc3 Qf2+ Kh5 Qfd6 Nd8 Bac6 Nb7 Re4 Rb3 Rd1 Rd3 Qeb3 Rc3 Re7 Rd3 Qbe6 Rc3 Nc1 e2 Qdd3 e1Q Ne2 Ne4 Qdd6 Rh3 Nf6+ Kg6 Rc1 Qd1 Ng8+ Kh5 Rb1 Nf6 Rb3 Bg2 Rd3 Bgd5 Qdg3 Bdc4 Rdd7 Bd3 Na3 Ba6 Nb5 Qa1 Qgd3 Qd1 Qg6+
b2QRr1B/1q2p2B/2R4K/B1rr1b2/1B5p/Nqb3Nb/1nRNN3/1n1kQ3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 a5 b4 h5 g4 d5 c4 d3 c5 d4 g5+ Kg7 g6 Kh6 g7 d2 b6 d3 f6 a4 f7 a3 c6 a2 c7 h3 b5 h4 b7 h2 b6 Bf5 c8N Ra7 Ba3 Na6 b8B Qd7 b7 Qa4+ Bb4 Qa5 Nd6 Qd5 Na3 Qg2 Ndc4 Nf6 Ne2 Kh5 g8N Nc5 Nh6 Na4 Bc7 Nb2 b8B Qb7 Rc1 a1Q Bca5 Ne4 Rc2 Bg7 f8R Bc3 Be5 Qa2 Re8 Rf8 Bh8 Qb3 f3 Bh3+ Nf5 Ra8 Qe1 d1B Qf2 Rc8 Nd2 Rc5 Rg1 h1B Rg6 B1g2 Rc6 Bh1 Ke3 Kg5 f4+ Kg4 Nfg3 B1g2 f5 Bf3 Rc1 Bc2 f6 Bb1 f7 Bh1 Nf3 d2 Rc2 d1R Bg2 Rdd5 Nd2 Ng5 Be4 Nf3 Bh7 B1g2 Rc1 Bf5 Rc2 Rg8 Ndf1 Nd2 f8Q Nb1 Nd2 Bge4 Qh6 Rf8 Qd6 Bd3 Qd8 Bb5 Rh6 Bc6 Re6 Qb6 Rf6 Ba8 Rc6 Qb7 Nd4 Bf1 Nh1 Kh3 Kf4 Bg2 Kg5 Kh2 Qe1 Bgh3 Ng3 Kg2 Qe2+ Kg1 Qe3+ Kg2 Qf3+ Kg1 Qf4 Kg2 Kh6 Kg1 Nde2+ Kg2 Nf3 Kf2 Nd2+ Ke1 Qf2+ Kd1 Qe1+
R2QQ3/b1bNp3/k3r2p/3rr1N1/1Qq5/B1R4K/2qnbNR1/2RBQb1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 b4 a5 f4 c5 Kf2 Kc7 Kg2 Kb6 d4 a4 g5 h6 g6 h3+ Kg3 e3 g7 a3 d6 e2 d5 e1R d7 c4 f5 a2 f6 h2 f7 c3 d6 c2 Nh3 Ra5 Be2 Na6 Nd2 Nf6 g8R Qc7 d8Q Bg4 Nf2 Bg7 f8R Nc5 Qe8 Nb3 Nde4 Qc4 d7 Nd2 Ba3 c1Q Ng5 Q1c2 Rc1 a1B d8Q+ Ka7 b6+ Ka6 b7 Be5+ Kh4 Nfe4 b8Q Bc7 Rf3 Rf5 Rc3 Bd4 Rg1 h1B Rg2 Ng3 Bf3 Re2 Qe1 Re6 Bd1 Be2 Kh3 Ba7 Rf8 Rfe5 b5+ Ka5 b6 Ka6 b7 Rg8 Nh7 Rgg5 Rh8 Rd5 Rg8 Rge5 Ng5 Bcb6 Qbd6 Bf1 Qb4 Bc7 Rh8 Be2 Rg1 Bhf3 Rg2 Bf1 Rf8 B3e2 Rg8 Qb5 Rh8 Nh1 b8N+ Kb6 Nd7+ Ka6 Rc5 Qbc4 Rf8 Bcb8 Rc8 Bd6 Rf3 Bdb8 Rc3 Bc7 Ra8
n1Rn4/1pN1rBR1/Nqrr4/1brQ2B1/1R1b1p1K/k1n1q3/B1R5/2QQ1B2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Rh4 Kd7 Kf2 Kd6 a4 Kc5 g4 h5 e4 f5 g6 b3 d4+ Kb4 e5 c5 a5 b2 g7 c4 g5 f3 d6 c3 Kg3 c2 a6 f2 g6 Nf6 g8B Bd7 d5+ Kb3 a7 Bb5 e6 Be2 e7 Bb5 d7 Qc7+ d6+ Nd5 d8R Bd7 e8B Qb6 g7 Rh6 Ba6 Nc6 Na3 Rc8 a8Q b1N Nf3 Be7 Be6 Bf6 g8R Bg7 Ra4 Bd4 Nb5 h4+ Kh3 Rh5 Ne5 f1R Rg7 Nc3 Nd3 Re1 Nb4 Rc7 Bg8 Re7 R1a2 Rh6 Bg5 f4+ Be6 Rg6 Rc8 Rf6 Qh5 c1Q Rc2 Rg6 Qd1 Qe3+ Kg4 Rh6 Bf7 Rf6 Bh6 h3 Kg5 h2 Kh5 Be5 Bg5 h1R+ Kg4 Be8 d7 Rhh6 d8Q Bd4 Qd7 Rhg6 Kh4 Nd8 Qd6 Rc5 Qe5 Qa5 Nc7 Bd7 Bf1 Bb5 Bg4 Rfc6 Bge6 Bc4 Qa6 Nb6 Qf5 Na8 Qb6 Rf6 Nba6+ Qb4 Bd5 Rfd6 Qe6 Ne4 Qa5 Qb5 Qad2 Nc3 Rb4+ Ka3 Qe4 Be2 Ba2 Qb6 Qd5 Bb5 Q2c1+
3qBNR1/Kp2q3/Qn1pr1bb/2R1Q2r/1Rq1q2Q/4N2k/b4n1B/1N1N1R2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 e5 Kb5 g5 h4 d6 f4 b3 c4 d3 a4 e4 h6 g4 h5 e3 h7 g3 c5 b2 a5 e2 a6 e1Q h6 d2 c6 g2 a7 Qee8 Rh4 Qe4 c7 Qd3+ Kb6 Qg3 Qa4 d1Q Ne2 Qgd3 Qa6 Qe7 Nec3 Qd5 Bb5 Qa2 Be8 Qd3 Nd1 Be6 c8R g1Q+ Rc5 Qc2 Be3 Qgh2 Bg1 Qhe2 Bh2 Qd5 Rg4 Qdd2 Ra4 Qce4 Rb4 Ba2 Rg1 Nc6 Rf1 Rd8 a8R Na5 Ka7 Nc4 Rac8 Qdc2 Rb8 Rc8 Ra8 Qd8 Rb8 Ke7 f6+ Ke6 f7 Nb6 f5+ Kf6 Ra8 Kg5 f6+ Kh4 Rb8 Bg7 f8N Kh3 f7 Nf6 Ng6 Ng4 f8N Qcc4 Nh4 Nf2 Ng2 Rc7 Rc8 Re7 Nge3 Re6 Ra8 Rg8 h8Q Qe1 h7 Bh6 Bh5 Rg5 Be8 Rh5 Qe5 Qee2 h8Q Qe1 Na3 b1B Rb8 Bc2 Nb1 Bd3 Nf5 Q1e3 Rbc8 Qeg5 Nfe3 Qge7 Qhf6 Qed5 R8c7 Qh7 Re7 Bg6 Rg7 Qde4 Rg8 Qhe7 Qh4+
1rR4n/p3N2B/1b1qbR1k/Q4qn1/bb3Rr1/1Q1p4/B5BK/BQqQ3N b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 Kf7 f4 Kg7 Kf2 h5 g4 e5 Kg2 d5 c4 h3+ Kh2 e4 b6 h4 c5 d3 g5 d4 c6 e3 c7 e2 b7 e1B b5 d2 b6 d3 f6+ Kg6 f7 Qd6 Nc3 Nc6 b8Q Kh7 g6+ Kg7 b7 Nge7 Ra6 Qa3 f5 Bf2 f6+ Kh6 g7 Nd5 g8B Rh7 Bg2 Nd4 Nge2 Bb4 f8Q+ Rg7 f7+ Ne6 Ng3 Nf4 Qc5 Ng6 f8R Ng5 Ba2 Be6 c8B Nh8 Qa5 Bb6 Bb2 Rg8 Ba1 Rg7 Qc7 Rb8 Rf4 Qc1 Qb3 d1B Nd5 Rg8 Qb1 Ba4 Ne7 Qc5 Qe5 Qd6 Rc1 Rg7 Qe2 Rg6 Kh1 h2 Qd1 Rg7 Be4 Rg8 Bh7 Rg7 Kg2 Rg8 Nh1 h3+ Kg3 Rg7 Bd7 Rgg8 Rc8 Rg7 Nf2 h1Q Bc6 h2 Bg2 Qf1 Qbb3 h1Q Qbb1 Qhg1 Nh1 Qe3+ Kh2 Qc1 Qbb3 Ngf7 Qb1 Rg4 Qbb3 Ng5 Qb1 Ra8 b8Q Qf3 Qb7 Rb8 Qbd5 Qe4 Q5b3 Qf5 Rf8 Bd4 Rc6 Bdc5 Rcc8 Bb6 Rf6+
2BrnBr1/pb2B1B1/4Q2r/1qR3b1/2p2N1N/KQR1nQrq/N7/Q5nk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb3 f5 g4 c5 e4 c4+ Ka3 h3 b4 h4 g5 f3 b6 f2 b7 f4 b5 f3 e5+ Ke7 b6 h2 d6+ Ke6 g6 Kd5 g7 Ke4 d5 h3 e6 Be7 Bh6 Qe8 Nc3+ Kf5 Na2 Kg4 Rc1 Kg3 Rc3 Qd7 Qa1 Nf6 g8Q+ Ng4 Qf7 Ne5 Bf8 Bd8 e7 Rg8 e8Q Bg5 Qee6 Na6 b8Q Nc7 b7 Qb5 d7 Ne8 Bd3 Kg2 d8B f1R d6 f2 d7 Rc1 Nf3 f1N Bde7 Ne3 d8N Rd1 Bf5 Rd3 Rb1 h1Q Nh4+ Kh2 Re1 Qf1 Bg4 Kh1 Re2 h2 Qf3+ Kg1 Rb2 h1R Rb4 Rh3 Ra4 Rd6 Ra5 Rg3 Bh3 Nc6 Bf5 Nd4 Bh3 Ne2 Bg7 Qd7 Rc5 Qb5 Bef8 Rg2 Bf5 Kh1 Bh3 Rc6 Qbg3 Ng1 b8B Ba6 Bbd6 Bb7 Bde7 Rb8 Qh6 Rbc8 Ne6 Rd8 Nf4 Qd3 Qf6 Qh7 Qe5 Rh6 Bc8 Qd3 Qe6 Qf5 Qfd1 Qh3 Qgg4 Rg3 Qb3 Qc6 Qgd1 Qb5 Qf3+
b1n2B2/2Bn1Q2/q4p1Q/r1rpNb1R/kRbb4/B2Bb1N1/3bK3/RRQ5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 d5 c4 Kd7 b4 g5 e4 a5 h6 g4 h7 g3 c5 f3 b6 Kc6 e5 g2 b5+ Kd7 h5 f6 b7 f2+ Ke2 a4 c6+ Kc7 e6 Kb6 e7 Ka5 e8Q a3 h6 a2 b6 Be6 c7 Nd7 b8R Qc8 b7 Bb4 Nc3 Bf5 Qd2 Ne7 Nf3 g1B Ne4 Ka4 Ba3 Ra5 Ng3 Rc5 Qc1 Bd2 Qf7 Rf8 Rb1 a1B h8Q Ra5 h7 d3+ Kd1 Be5 Rh5 Bd4 Ne5 Rc5 Be2 f1B Qhg7 Re8 h8B Bge3 Qh6 Ra5 Ra8 Rg8 b8B Qa6 Ra7 Nc8 Bg7 Re8 Bgf8 Re6 Ng6 Rc6 Ne5 Rcc5 Ra8 Bb4 Ra7 d2 Bd3 Bbc3 Rab7 Bb4 Ra1 Bbc3 Rbb1 Bb4 Be4 Bc4 Bd3 Bbc3 Ke2 d1B+ Kf1 Bdb3 Ke2 Bcd2 Qg8 Ncb6 c8R Bb5 Qf7 B3c4 Re8 Bc6 Bc7 Ba8 Rb8 Nc8 R8b4+
kn1NN1n1/3n1Q2/rBR4q/3b2b1/3Q1np1/N3QN1p/rr2rR1K/1Q1R1B2 b - - 0 1 illegal: No proof kernel
K1nR2Qb/4r1nb/3NR1rq/3B3B/3rpb2/1k1QR2Q/1NpBRrb1/B7 b - - 0 1 illegal: No possible last move
Bn3K1b/QN4Nk/RBn3B1/p2R2q1/1rr3Q1/1b1R2Nn/p3N2B/2n1bb2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kf7 Kd3 Kg7 Kc4 h5 Kc5 e5+ d6 e4 g4 a6 b4 c6 d4 a3 f4 a2 g5 h3 g6 h2 f6+ Kh6 b5 e3 d5 h4 b6 h3 f7 e2 g7 e1N f5+ Qg5 f6 Kg6 b7 Ne7 g8B Qg3 d7 Qf3 Kd6 c5 d8B c4 Nd2 Rh5 Ne4 Rh8 Bf4 Bg7 f8R Qe3 f7 Be6 Ne2 Rh4 Bg2 Nd3 N4g3 Bh8 Bb6 Nec6 Rd8 Nc1 f8N+ Kg7 Bh7 c3 Bg6 c2 Rd7+ Bf7 Ne6+ Kg8 Be5 a5 Ng7 Qg5 Rb1 Ra4 Rb3 Rb4 Rd3 Be6 Rf1 h1N Rf6 h2 Qg1 Rc4 Qd4 Rb4 Qg4 Nf2 Bf3 h1B Bf4 Ne5 Ke7 Nh3 d6 Nec6+ Ke8 Bg2 Be5 Na6+ b8Q Bb3 Rd8 Ra7 d7 Rc7 Qa7 Nab8 Bd6 Bf1 Bg2 Nd4 Ba8 Rcc4 Bdc7 Ndc6 Rfd6 Rc5 R6d5 Rc3 Rc8 Rcc4 d8N Ra4 Nb7 Rab4 Bh5 Kh7 Kf8 Qe3 Re8 Qe5 Re6 Qg5 Rde3 Nd3 Bd6 c1B Rf6 Bd2 Bg6+ Kh6 Bdc7 Nc1 Red3 Be1 Bd4 Ne7 Ra6 Nec6 Bcb6 Bc3 Bg1 Be1 Be8 Kh7 Bh2 Qe5 Bf7 Qg5 Bg6+
KRbnB3/6b1/1b3B1p/R2QR1R1/4r1B1/2bp2rQ/1N1k1qnQ/1N1B1rr1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 e5 Kd5 a5 f4 h6 b4 h3 c4 a4 g4 h2 c5 a3 g5+ Kf7 c6 e4 b6 e3 c7 d3 g6+ Kf6 g7 e2 b7 e1B b5 d6 b6 a2 Be2 d2 Bb2+ Ke7 f6+ Kd7 f5 Ra4 f7 Bg3 f6 Ra7 Nh3 Qe8 Re1 h1R Na3 Rg1 Nf4 Ra4 Nd3 Nc6 b8R Nd8 b7 Qe3 Qb3 Rf4 Bd1 Qf2 Re5 Re4 Bd4 Bf4 Nb2 Be3 Bc3 Bb6 Rg5 Be7 f8R Rg3 f7 Bf6 Bd4 Rh7 Re8 Ne7+ Kc4 Ke6 Kb5+ d5 Ka6 Rg1 g8B Bg7 f8Q+ Kd6 Bf6 Kc5 Qf3 Kb4 Qh3 d4 Bf7 d3 Qg8 Ng6 Ree5 Kc3 Be8 Nh4 Qge6 Ng2 Qd5 Bg4 c8B Be6 Bf3 d1R Bcd7 Rdf1 Bd1 Kd2 Bc8 Bg8 Bcg4 Bf7 Rc8 Bg6 b8Q Bf5 Qc7 Rh8 Rb8 Rg8 Qcd6 Ne6 Kb7 Nd8+ Ka8 Bc8 Rc1 a1B Rc5 Re2 Ra5 Re4 Na4 Bad4 Nb2 Bc3 Re6 Re3 Qdh2 Rg3 Ree5 Rf8 Be7 Rf4 Bf6 Re4 Nb1+
4N2R/1B1qp1k1/1B1rR2R/2rb4/3p2r1/1bbNnrN1/Q1Nn4/1bKB1QR1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 a5 c4 d5 b4 h5 g4 d3 b6 a4 c5 h3 g5 h2 b7 a3 f6 h4 c6 a2 c7 h3 g6+ Ke8 g7 Kf7 f5 Bd7 c8B Nc6 b8R Ra5 b5 Nb4 b6 Rc5 b7 Be8 Qe2 Nc2 Na3 Ne3 Nc2 Nh6 g8N Qc7 Bg2 Nhg4 Bf3 Rh6 Bb2 Qc6 Bd4 Rg6 Kc1 Nc4 Qf1 Qd7 Bd1 Nge3 Ne2 Rg4 Ng3 Bg7 Ra8 Re4 b8N Rg4 Bb7 Nd2 Ra6 Kf8 Rd6 Bg6 f7 Be5 Ra6 Kg7 f8R Bf6 Rb1 a1R Nc6 Ra3 Ne5 Rb3 Rg1 h1R Re6 h2 Ra1 Rb6 Ra6 Rd6 Qf2 Rcc6 Bb6 Rc5 Nh6 Bh7 Nhf7 Bg6 Rh8 Bh7 Nc4 Bc3 Nb2 d4 Qg2 Bg6 Qd5 Bh7 Qa2 Bg6 Rg2 Rf1 Rg1 Bh7 Rh6 h1B Re6 Rdc6 Nd6 Bd5 Rh6 Rf3 Ne8+ Kf7 Re6 Rd6 f6 Bf5 Ra8 Bg6 Rh6 Kf8 f7 Bf5 Nf6+ Kg7 Rah8 Ndf1 Kb1 d2 Nd3 Bfe4 Be2 d1B Kc1 Bf5 Na1 Rcc6 Nf4 B1b3 Bd1 Bb1 Nd3 Rf2 Nc2 Nd2 Rh3 Rc5 f8Q+ Kg6 Ne8+ Rf6 Re5 Rf1 Qf3 Rf2 Qe2 Rf5 Qf1 Rf3 Re6+ Kf7 Nf6 Kg6 R3h6+ Kg7 Ne8+
1rBn1K2/p1q4Q/Q4QQR/pNRN2Br/rN2b2n/bbr2R2/7R/3kb3 b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Bb7 a5 bxa5 Qf3 Ba6 Qd1 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 b4 h5 d4+ Ke4 f4 e5+ d6 c6 g4 h3 b5 h2 d5 h4 f6 h3 g5 Be7 f5 Rh6 g6 Qc7 f7 Bg5 f8Q Qg7 d7 Qf7 Kd6 c5 d8R c4 b6 c3 b7 c2 f6 Be3 g7 Bf5 Rc8 Bf4 Ba6 Rh7 Qe7 Bh6 Ra2 Nc6 b8N Be6 Bg5 c1R Qf1 Nd8 Na3 Rc3 Nc6 Rb8 Ne2 Rh8 Qc7 Ne7 g8Q Bf8 Nf4 Ke3 Qg6 e4 Nb4 Rh5 Nb5 Qh7 f7 Nf5+ Ke5 Bc5 Kf6 Nh4 d6 Bb3 f8R Qd7 Qb7 Qc7 d7 Be7+ Kg7 Bd6 Ra4 Kd2 Nfd5+ e3 Rh8 Bc5 Rh6 Bd6 Qff7 Bc5 Rf1 h1B Rf3 h2 Ra2+ Kd1 Kg8 e2 Qfh7 e1B Kg7 Be3 Kf8 Bc1 Qbb6 Ba3 Rb2 Qg3 Rc5 Qc7 Bc8 Bg2 Rbf2 h1R Qa6 Rg1 Re2 Bh1 Rh2 Rg4 Nc2 Ra4 Ncb4 Nb7 d8Q Bg2 Rf1 Be4 Qdf6 Nd8 Rf3
3bN3/3Rb1q1/1rn2B2/BN2p1N1/p1r1B1RB/1R6/rn2nQ1p/1bk2KQR b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 f4 e5 b4 a5 b6 c5 b5 h5 g5+ Kf5 b7 h3 d6 c4 b6 c3 g6 a4 d5 h4 g7 e3 d7 Ke4 d6 h2 f5 c2 f6 e2 f7 h3 Na3 Nh6 g8N Be7 f8Q Nc6 b8R Ng4 b7 Ne3 Nb5 Rh6 Nf3 Qc7 d8B Nc4 d7 Nb2 Bd2 Kd3 Nf6 c1N Bg2 Rg6 Kf2 e1B+ Kf1 Ne2 Ng5 Bh4 Ne8 Rh6 Qe1 Kc2 Ba5 Rg6 Rg1 h1R Qff2 Rh2 Rd1 Ra6 Rh1 Rb6 Bd5 Rd6 Be4+ Rd3 Ra8 Rg2 b8R h2 Qg1 Rg4 Qef2 Rf4 Bf3 Rc4 Be4 Ba6 Rd2+ Kc1 Ra7 Rg3 Rd4 Ra3 Rab7 Ra2 Ra7 Bd6 Bf6 Be7 d8B Bc8 Rab7 Bf5 Rd7 Bb4 Rd4 Qg7 Rbd7 Bg6 Bd5 Bb1 Rg4 Bd6 Be4 Bc7 Bde7 Bd8 Nd4 Ra6 Rb3 Rb6 Nb5 Bg3 Qf5 Be1 Qff2 Bb4 Nh7 Bd6 Bh4 Ba3 Bef6 Bae7 Ng5
3B1nrQ/2N2bqr/1Rkr2Qb/2p2BpK/4p2R/1b1Nn2N/nBB4R/R7 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 d4 b5 a4 c5 f4 g5 h4 e5 f6 b3 f5 g3 Kf3 b2 Kg4 g2 a5 b4 d6 b3 h5 Bg7 h6 Bb7 d5 Qb6 a6 Qc6 a7 Ba6 h7 Nh6+ Kh5 Ng8 f7 Bb5 f8N+ Ke8 d7+ Kd8 f6 Kc7 d8Q+ Kb7 d6 Qc8 f7 Ne7 d7 Qc7 Na3 b1B Bb2 Bh6 Rh2 Ba2 Qb1 Nf5 Ne6 Bc4 f8R Kc6 Bd3 Ne3 Nh3 g1R Rf6 Rd1 Bf5 Rd6 Nef4 Bf7+ Rg6 Rg8 h8R Rg7 Nd3 Rh7 Qf8 Qb7 d8B Nd7 Qg7 Nf8 Nb5 Rc8 a8B Rb8 Bc1 b2 Nc7 Bab3 Qc2 b1N Bb2 Nc3 Qg8 Kb6 Qb1 Qa7 Bae4 Na2 Qh1 Bfe6 Rf6 Bf7+ Qg6 Ra8 Bc6 e4 Ba4 Bbe6 Bc2 Bb3 Qe1 Kc6 Qc3 Rg7 Rh7 Qb7 Re6 Rg8 Qh8 Ra7 Na8 Qe7 Nc7 Rb7 Rf6 Qe5 Re6 Qg7 Nhf4 Qd4 Na6 Be8 Rf7 Kb5 Nh3 Rc6 Bg4 Qe5 Rf4 Rh7 Bf5 Bf7 Rd6 Qg7 Nc7+ Kb6 Rh4 Kb7 Rd4 Rd6 Rb4+ Kc6 Rb6+
1r1kq3/nr1B1q1R/1b2Q1p1/1p3bB1/Q1NQ3n/K3b1NB/NR3N1p/2r3B1 b - - 0 1 illegal: No proof kernel
k3Bn2/r2RR1Qq/b1Nqp1b1/7p/NQpnn1rB/N4B2/3bN3/1B3K1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 g4 h5 f4 b5 d4 c5 g5 Kc7 d6+ Kb7 d5 h3 d7 c4 g6 e6 f6 b3 f7 h2 f5 b4 f6 b2 a5 b3 d6 Qb6 d8N+ Ka7 d7 Ba3 f8Q Qd4 f7 Qd5 g7 Qb5 a6 Qf5 Qb4 Qf3 f8Q Qe3+ Ne2 Qg5 Nb7 Qe7 d8N Nd7 Nc5 Ngf6 g8B Ne4 Na4 Qd6 Bf7 Rg8 Be8 Rg4 Bg5 Bb7 Qh8 Nf8 Qg7 Kb8 Bh3 Ra7 Bh4 Ka8 Kf1 Bc8 Rg1 h1N Nc6 Bb7 Rg3 Bc8 Rd3 Nhg3+ Kg1 Nf5+ Kf1 Nd4 Qc1 Re7 a7 Ba6 Bg2 Rb7 Bf3 Rd7 Qb6 Bb4 Na3 Bd2 Qb4 b1Q Ra2 b2 Ra1 Bb5 Ra2 Kb7 a8B+ Kc7 Qg8 Nc5 Ne7 Kb8 Kf2 Qf4 Qg7 Qa1 Nc2 b1B Qh1 Nc6 Kf1 Rc7 Rd5 Nd4 Nb6 Qg3 Ra7 Ba6 Bac6 Qa2 Na3 Qc2 Ba4 Qh7 Bc2 Rd7 Rc7 Qh2 Na4+ Ka8 Nc6 Re7 Bd1 Bg6 Bc2 Ne4 Bb1 Qg3 Rf5 Qf4 Rf7 Qd6 Rb7 Rd7 Re7 Rc7 Rb6 Ra7 Rbb7 Bf5 Rbc7 Bg6 Rcd7
q1Qr1b1K/R1BB4/2pQ3N/3n3b/1nkRQp2/p4R2/qB2rq1R/Q4n1N b - - 0 1 illegal: No possible last move, all moves rejected
B1B2qN1/K3k1Q1/1p6/1BRnb1Rn/N1p2R2/NN5r/3bqQp1/r2nB2b b - - 0 1 illegal: No possible last move, all moves rejected
1N1n3q/1k1p1r2/3bp1R1/R2QBRq1/r1r2B2/3RKn1q/1Nb1p1Q1/Q2Q1B2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Ke2 g5 c4 a5 f4 e6 b4 d3+ Ke3 a4 h4 g4 f5 d2 c5 a3 b6 a2 f6 g3 c6 g2 b5 Ra7 h6 Na6 c7 Ne7 h5 Ng8 b7 Nb8 f7+ Ke7 h7 Kd6 h6 Be7 f8R Nf6 b6 Kc6 Rh3 Nh5 Na3 Ra4 Nf3 g1R Rf5 Nf4 Nc4 Ne2 Nb2 Rf8 h8R Bd6 h7 Nd4 Rg8 Rf7 h8Q Rg4 Rg6 Rf4 Rhg3 Qg5 Qh1 Rc4 Qg2 Ra4 Ne1 Rc4 Ned3 Nf3 Nc5 Ra4 Na6 Rc4 Qde2 d1Q Bd2 Qa4 Qd1 Qb5 Bc3 Qh4 Be5 Qh3 Rb1 a1Q Rc1 Qaa5 Ra1 Rh4 Bf4 Qe5 Ra3 Qg7 Rd3 Qac3 R3g5 Qh8 Ra5 Qcf6 Rgf5 Qg5 Nc5 Na6 b8Q Bb7 Qa7 Nb8 Na6 Ba8 b7 Rg4 Ke2 e3 Qd4 Rh4 Qd5+ Kb6 c8Q Nc6 b8B Nd8 Be5 Bc6 Bf4 Ba4 Qa1 Bc2 Qd1 Be7 Bbe5 Bd6 Nb8 Ra4 Qa6+ Kc7 Bh2 Rhc4 Bhf4 Nh4 Ke1 e2 Kf2 Nf3 Qa7+ Kc8 Qad4 Kc7 Ke3 Kc8 Qc3 Kc7 Qa3 Kc8 Qaa1 Kc7 Qd4 Kb7 Qd5+
N2NB1K1/Q1pn4/1npR1RB1/1Bk3r1/3n2bQ/N2rQb2/1Bq2b1p/q4Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 c4 exf4 a4 Ke7 axb5 Ke8 c5 Ne7 c6 dxc6 Rh2 Ng8 Rh5 Be7 Rh1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 b4 a5 d4 f6 g4 f3 g6 h4 d5 a4 g5 a3 b6 a2 g7 f2 b7 h3 b5 h2 g6 Bg4 b6 Be7 Nf3 Qc8 Nfd2 Bh3 Bb2 Ra7 Nc4+ Kc5 d6 f5+ Ke5 f4 e4 f3 d7 Ra3 d8N Rb3 Nba3 Nh6 g8Q Bd6+ Kf6 Rb5 Kg7 Na6 b8Q Be6 e5 Nb4 b7 Nf7 Qh7 Nd5 Qh4 Nb6 Qa7 Bg4 b8Q Qf5 e6 Qc2 e7 Ne5 e8B Nd7 Qc8 Rh6 Kg8 Bg3 g7 Rd6 Qe1 Rd3 Qca6 Ra5 Rd1 a1N Bg6 Nb3 Qe3+ Nd4 Be2 Kb4 Rhf1 Rg5 Be8 Nc8 Nb6 Kc5 Na8+ Ncb6 Rg1 f1Q Rh1 Rb3 Bb5 f2 Rd2 Qfb1 Rhd1 f1B Rf2 Bfe2 Rf6 Bf2 Rd3 Bef3 Rd1 Kb4 Rd3 Nf5 Rdd6 Qa1 Bd3 Nd4 Bdg6 Rf5 Qf1 Ra5 Kh7 Rf5 g8B Rd3 Bc4 Kc5 Kg8 Rg5 Bb5
8/1KpQQNR1/pN1p1kb1/2B3b1/qN2B3/qB4R1/3QQq2/1B1rnnrb b - - 0 1 illegal: No proof kernel
2K1Bq1b/1p2B1Q1/2Q1p2B/2pRn3/1Rk2r2/b1B1rN2/Q2qbR1n/3N2nQ b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 g5 a4 c6 f4 g3 d4+ Kb6 h4 c5 f6 g4 f5 e6 a5+ Kc7 h5 b3 h6 b2 f7 g2 d6+ Kc6 h7 g3 f6 Qb6 a6 Qb4 d7 Kb6 d8Q+ Kc6 a7 Qc4 d5+ Kb5 d6 Ne7 d7 Kb4 Kd6 Nf5+ Kc7 Qd4 Nc3 b1Q Ra3 Nc6 Rh5 Nh6 Rd5 Ng4 Nf3 g1B Qe8 g2 d8B Bg7 f8Q Qf5 f7 Qd2 Be7 Bd7 Bb5 B1d4 Qh1 g1N Nd1 Nce5 Qg8 Rb8 a8Q Nh2 f8R Bb2 Qa6 Bf6 Qg7 Rd8 Rf7 Rf8 h8B Qff4 Ba4 Bb5 Rb3+ Kc4 Qec6 Ba3 Qa7 Qf5 Qa8 Qa2 Bh6 Qd2 Qd6 Ba6 Be8 Bb5 Qc6 Rd6 Rdd3 Rd4 Qa7 Re4 Rd5 Re3 Kc8 Bb2 Qa2 Ba3 Qg3 Bg7 Nd4 Qf1 Rf2 Rf4 Nf3 Bf6 B8g7 Ba6 Bgf8 Bh8 Qg7 Qfd3 Bf6 Qf5 B8e7 Bb5 Bfg5 Qf8 Bgf6 Ng6 Bb2 Ne5 Bc3 Ba6 Ba1 Bb5 Rc3+ Kb4 Bb2 Be2 Rb3+ Kc4 Bd4 Rd3 Bc3 Re3 Rb4#
nr6/pk1BpN2/2N3b1/4NNq1/qb1K4/BQ2Q3/2Qn2pB/1rnR1RBr b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 g5 d4 c5 b4 Kc7 f4 g3 h4 c4 h5 g2 d6+ Kb6 f5 c3 d5 c2 d7 g4 d6 g3 f6 Bg7 f7 Kb7 f8Q Qe8 d8N+ Kb6 d7 Rh7 h6 Bb7 Ba3 c1R Nf3 g1N Nf7 g2 d8N Rc2 Nc3 Ne2 Nc6 Ng1 Ne2 Rh8 h7 Bc3 N3e5 Rb2 Ned4 Na6 Nf5 Rb8 Qh6 Nc7 Qc2 Na8 Rd1 Ne2 Rg1 Kc7 b6+ Kc8 b5 Bb4 Qf4 Nc1 Kd4 Rb1 Qe3 Nf6 Bd3 Qg8 Rgf1 Qg5 Be2 Ba6 b7+ Kc7 Bg4 Kb6 Qec3 e3 Bh3 e2 Qe3 e1Q Bg4 Rhg8 h8B Ne4 Bf6 Rh8 Bh3 Rbf8 b8B Kb7 b6 Bd3 Bg7 Nd2 Bc7 Ka6 b7 Qeh4+ Bg4 Rh6 b8Q Rfh8 Qg8 Kb7 Bb6 Qg3 Bc5 Rh1 Bh6 Q5h4 Bf4 Be4 Bh3 Qgg5 Bh2 Qhg4 Qd8 Re8 Qd5 Rb8 Qdb3 Q4h4 Ng7 Bg6+ Bg4 Qf2 Bd7 Qe2 Nf5 Qa6 Bd6 Qa4 Bg1 Rbh8 Nf3 Re8 Bdh2 Rb8 N3e5
R1K2R1B/2N2Q1R/1rp2b1p/3r3N/r1bRkp2/5rn1/nNB1q3/1QQ2Qr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 a4 b4 f3 g4 a3 b6 f6 g5 c6 g6 a2 g7 h3 b7 h2 b5 f2 b6 Ra7 Na3 Nh6 g8Q Bh3 Qf7 Ng8 Bb2 Ra8 Qc1 Bg2+ Kf5 Qc7 e4 Bg7 Nh3 Bf8 Bd3 f1R+ Nf4 Ra6 Bc2 Be7 e5+ Kd7 d6 Qd8 d5 Ra7 Nc4 Na6 b8Q Qe8 b7 Nb4 Bc3 Ra4 Nb2 Rd1 Nh5 Bf1 Qa8 Ra6 b8Q Rb6 Qa6 Rd3 Qc4 Rf3+ Q4f4 Bc4 Qb7+ Kd8 Ke6 f5 d7 Nf6 Qf1 Ne4 Q4c1 f4 Bd4 Ra6 Qb5 Kc7 d8R Ng3 Rb8 Qg8 Rf8 Rb6 Bc3 Kb7 Kd7 Qg4+ e6 Bf6 d6 h6 Rg1 h1R Be5 Qg5 e7 Qg4+ Kd8 Rg8 d7 Rg5 Bd4 Ka7 Kc8 Rd5 e8N Qe6 Rg2 Rg1 Nc7 Qe8+ d8R Qe2 Rb1 a1R Rh2 Rd7 Rh3 Ra4 Ra1 Rd6 Rd7 Na2 Qf5 Rd5 Q5h7 Bh4 Bh8 Bf6 Re7 Rbb4 Qd3 Kb6 Qdd1 Kc5 Qb1 Nc3 Qdc1 Kd4 Ra3 Rb6 Rd7 Rab4 Ra8 Ra4 Re7 Na2 Rd7 Ne4 Rg3 Ke5 Rg7 Ng3 Rh7 Rda5 Rd1 Rd5 Rd3 Ke4 Rd4+
n1r4Q/1BB3pp/b1N5/1Q3R1K/1r3B1n/Nr1rbRQ1/R1p1BQ2/1r1k2q1 b - - 0 1 illegal: No proof kernel
RbnnB2Q/qk2pr1B/1p4QN/1b2R3/2N1B2n/R2nK1B1/r2p4/3Nn1N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 g5 a4 d5 c4 Kd7 h4 Kc7 f4 g4 h6 b3 c5 b2 f6 d3+ Ke3 g3 a5 b6 f7 d2 f5 g2 a6 Qd6 h7 Ra7 h5 Rb7 a7 Qf6 a8B Nh6 c6 Bd7 Bb5 Bg7 f8N Ra7 Qg4 Nf7 h6 Nd6 Ra3 Nc8 Nc3 b1N Nd1 Qa1 Qg6 Be5 f6 Bg3 f7 d4+ Ke4 d3 Rh5 Be8 Nd7 Rf8 h8Q Ra6 h7 Bh2 Ra2 Na3 Re5 Nc2 Ra3 Ne1 Bb2 Qa2 Bd4 Bf4 Bf2 Ra5 Bg3 Ra6 Ne3 d1N Kd4 Nf2 Nd1 d2 Bb7 Rg8 f8R Rg7 Ba4 Nfd3 Bc2 Bg5 Ke4 Bf6 Ke3 Rf7 Ba4 Kd6 c7 Nc6 Bc2 Nd8 Be4 Ra7 Nb8 Bb5 Nc6 Ra4 Na5 Kd7 Nc4 Bh4 Nh3 g1N Re8 Ngf3 Ng1 Bf6 Bb1 Nh4 Rf8 Nd6 c8B+ Kc7 Bd7 Nc8 Be8 Ra6 Rb3 Qa4 Ra3 Ra8 Rg8 Qa7 Re6+ Nf4 Bb7 Nd6 Ra2 Ne4 Qhg7 Qa4 h8N Be5 Bec6 Rf8 Q6h7 Nd6 Nf7 Qa5 Bg6 Nfd3 Nh6 Rf7 Qhh8 Ra6 Bce4 Nc6 Bh7 Ra8 Rb8 Nc8 Qg6 Nd8 Bbc6 Qa6 Be8 Qb7 Rc2 Ra2 Ra8 Qa7 Rc3 Bd6 Ra3 Be5 Bf5 Bd6 Re4 Kb7 Re5 Bb8 Be4+
B2q1N2/Q3rN2/3NQr2/1K1BRQR1/4b3/bpk1BQ1b/p1n4p/n2b1N1r b - - 0 1 illegal: No proof kernel
1Qn2Nn1/b3Q3/2nN4/1N1RbBKR/6pp/Rp1bN2B/1rr2B2/qk1Bb3 b - - 0 1 illegal: No proof kernel
2QNnq1B/4Q2K/3b1RrR/1r1N4/1nB1pb1p/2Q4Q/1pBbb3/1n1N1Nk1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 a4 b5 d4 h5 g4 b3 a5 b4 a6 b2 d6 b3 d5 e6 a7 c4 d7 c3 d6 c2 Ne2 e3 Qd4 Bb7 Qc3 Nc6 Ra6 Qa5 d8Q Rb8 a8B Bh6 d7 Nd4 Qe7 Bc8 d8N Rb5 Nd2 b1N Bb2 c1B Be4+ Nf5 Bc2 Qa2 Ke4 Bd7 f4 Bf8 Rh4 Ng7 f5+ Kh7 g6+ Kh6 f6 Kg5 Qa3 e5 f7 Ne8 g7 Ne7 g8N Rh6 Nf6 Rg6 Nd5 Nc6 Rb6 Bd6 f8Q Nb4 Qe7+ Rf6 Rh2 h4 Rf2 Bc8 Rf3 Ba6 Ba1 Kh6 g5+ Kh5 g6 Kg4 g7 Rg6 g8Q Qb2 Rf6 Qa2 Nef4 Kg3 Kf5 Kf2 Nd3+ Kg1 Nb2 e2 Nd1 e1B Bc4 e4 Nf1 Bcf4 Qge6 Qb2 Qc8 Bed2 Qh3 Qa2 Be5 b2 Qac3 Rg4 Rh6 Qa3 Bh8 Rg2 Qcg3 Qf3 Kg6 Qf2 Kh7 Qc5 Qc3 Rg6 Nf6 Qf5 Nd5 Qf8 Qce6 Bc8 Qg8 Bg4 Qge6 Be2 Qc8 Bb8 Re6 Bbd6 Rf6
1q1n2b1/1kBN2N1/1rB4b/R3pp2/N1R4K/BbN1r1QR/B2n2pQ/1b4n1 b - - 0 1 illegal: No proof kernel
BRn1qnQr/4k1Q1/b1Q5/2NpnKB1/6pN/bR1N2N1/b2p3B/r3n2Q b - - 0 1 illegal: No possible last move
1b4b1/4B1q1/1rr2rn1/Bp1R1k2/1B2RN1Q/2N2Q1p/K1BQnbRp/1R5r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 e5 Kc2 b5 Kb2 c5 g4 h5 f4 c4 a4 e4 g5 c3+ Ka2 h3 g6 h2 a5 e3 f6 c2 d6 Ke6 f7 h4 g7 e2 d5+ Kf6 f5 e1B a6 h3 a7 Nd7 Bd2 c1R Nc3 Qe7 Bd3 Qe8 Nge2 Qd8 Nf4 Qc7 Bc2 Nc5 d7 Na4 d8R Ne7 g8R Ng6 d6 Bf2 d7 Bd6 f8B Rh6 Rb1 Rb8 a8Q Rb6 Qaf3 Qa7 Be1 Bb8 Qd2 Kg5 f6 b3+ Ka3 b2 f7 Bb7 Bb4 Bd5 f8B Kf6 Rg7 Bg8 Bfe7+ Ke5 Re8 Qb7 d8Q Qc7 Bb3 Kf5 Ka2 Qe5 Rg1 Qf6 Rh7 Qg7 Rg2 Rf6 Ncd5 Rcc6 Nc3 Nc5 Q8d4 Ne4 Qc4 Ng3 Bc2+ Ke5 Rd8 Ne2 Rd4 Rb6 Re4+ Kf5 Rh8 Bd5 Rd8 Bg8 Ra1 b1R Rd5+ Ne5 Qcd4 Rc1 Rb1 Rfc6 Qg3 Rhf6 Qh4 Rd1 Q2d3 Rc1 Qf3 Rd1 Bd2 Rg1 Be1 Rh1 Qd2 Rc5 Ba5 Ng1 Qde2 Rc8 Na4 Rcc6 Qd1 Ne2 B1b4 Rcd6 Nc3 Rde6 Rd7 Ng6 Qd2 Rec6+ Rd5+
b1Q1R1B1/1QNnnR1Q/4K2p/k1B2nb1/5p2/b2NQrp1/5B1R/B1qn2r1 b - - 0 1 illegal: No proof kernel
3qr3/4Q1Kn/1R1bR2p/2Nb3B/1QBp1N1r/2Br4/1Q1Rpr1k/R2Qn1n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 a5 b4 d5 g4 d3 c4 d2 f4+ Ke4 f6 e5 g5 h3 c5 h2 f7 h6 Kg6 d4 c6 a4 b6 a3 f5 Kf4 c7 Kg3 f6 e4 b5 e3 b7 a2 b6 Qd5 Nc3 Qc4 Bb2 Bg4 c8B Qb5 Ne4+ Kf4 Bc3 Qd7 Nc5 Kg3 Bc4 e2 Nh3 Be6 Nf4 Nc6 b8Q Qd8 b7 Bd6 f8Q Bd5 f7 Ne5+ Kg7 Nf3 g6 Ng1 Qe7 Nf6 f8Q Nh7 Bg4 Ra6 Bh5 Ra5 Qf5 Re8 Qfb1 Ra7 Qb2 Ra3 Ba5 Rf3 Bc3 Rf2 Qb4 Nh3 Rf1 h1R Rg1+ Kh2 Rg3 Bc7 Rd3 Ng1 Qb2 Ba5 Qbd6 Bb4 b8R Ba3 Rb6 Bb4 Rc1 a1N Rb1 Nc2 Ra1 Ne1 Qb8 Ba5 Re6 Bc7 Q8b4 Bb8 Kf7 Qb6 g7 Qd8 g8R Bc7 Rg6 Bd6 Qdb3 d1R Rd2 Nh3 Kg7 Ng1 Rc2 Rd3 Rd2 Bc7 Rb6 Bd6 Re6 Kg3 Qb5 Rh4 Q5b4 Kh2 Qd1
Q1RRB3/nn1N1RB1/3p1N2/2bp3r/nkq1B1Qr/7r/2Q2pQ1/3Kn1Rb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 axb5 c6 d4 Qb6 d5 cxd5 Nh3 Qc7 Ng1 Qd8 c4 Ke7 e4 Kd6 h4 Kc5 b4+ Kb6 h6 g5 e5 a5 h5 f5 e6 f3 h7 a4 h6 f4 e7 a3 e8B g4 Nc3 g3 Ne4 a2 Nf6 g2 Qc2 f2+ Kd1 f3 Bd3 Bc5 Bb2 d6 Be4 Ne7 Rh5 f1N Rf5 f2 Nf3 g1N Ne5 Nbc6 Rb1 a1R Ned7+ Ka7 b6+ Ka6 b5+ Ka5 b7 Nd2 b8Q Ra4 b6 Qc7 b7 Kb4 Qa7 Nd8 b8Q+ Nb7 Qa6 Ra7 Qa8 Ngf3 Rf4 Nb3 Ba1 Rf8 h8R Nc6 h7 Ne1 Rg8 Rf7 h8Q Rh7 Qg7 Rh5 Qg4 Rh3 Bf7 Rh5 Rd8 Rh3 Be8 Rh5 Nb6 Bf5 Nbd7 Ra3 Qg2 Bh3 Qg4 Bg2 Rf3 Bh1 Bd4 Bb6 c5 Qc8 Qad3 R7a4 Qf1 Na7 c6 Qc7 Ra1 N3c5 Qfg2 Qc8 Rf4 Rah3 c7 Ncd3 Rf5 Bc5 Be5 Nb2+ Kd2 Qb8 c8R Qc7 Rc1 Qc6 Rf3 Qb5 Bd4 Qc4 Ra1 Ned3 Rg1 Ne1 Rf5 Raa3 Kc1 Na4 Kd1 R5h4 Rh5 Raf3 Rh7 Rf5 Rf7 Rfh5 Ng8 Rg5 Bg7 Rgh5 Ngf6
1RNn4/N7/B1p5/nR2n1BR/r1pr4/k1rb1Q2/pQ1b1r1q/NB1K1NR1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 d4 Kd7 f4 Kd6 g4 h5 b4 e5 d5 a6 g5 h3 g6 h2 b6 h4 f6 e4 f5 h3 b7 e3 b5 Kc5 d6 Kb4 f7 e2 d7 Bd6 f8Q Rh6 b6 Rh8 f6 Rh4 g7 Ne7 g8B Nec6 f7 Rd4 Bh7 Na5 Nd2 Nbc6 b8R Qe7 d8N Qe5 b7 Bf5 Nb3 Bd3 Kd2 e1N Qc2 Nf3+ Kd1 Qf4 Be3 Nfe5 Nf3 Qg3 Rc1 Ka3 Nfd2 Bb4 Bg5 Qh4 Rg1 h1R Na1 h2 Be2 Qh6 Nf1 Qd6 Rb1 Bd2 Rb5 Ra7 Rc8 Ra8 b8N Ra7 Nb7 Nd8 Nc6 Ra8 Rg3 Rg1 Rg4 h1R Na7 Rh2 Rb8 Rf2 Rg3 Rh1 Rg1 Rh3 Bf5 Be4 Bh7 Rc3 Bf5 Bd3 Bg6 Qe7 Nd6 Qf6 Bf5 Qh6 Ndc8+ Qd6 Qh8 Qh6 f8R Qh1 Qh3 Qh2 Rh8 c6 Rh5 Nb3 Bg6 a5 Bg4 a4 Qf3 Na5 Nb6 Re4 Bc8 Rh4 Ba6 Rd4 Rc5 Kb4 Rd5 a3 Rc5 a2 Rb5+ Ka3 Nbc8 Nd7 Bh7 Ne5 Qb2+ Ka4 Bb7 Be4 Qc1 Nb3 Bf5 Bd5 Bb1 Be4 Qc2 Bh7 Ra5+ Kb4 Nb5 Ra6 Nba7 Bd3 Rc5 Ra4 Rb5+ Ka3 Ba6 Na5 Qb2#
n7/R1rr1N1Q/1pq5/Nkr2b2/BB2Nr2/b2p2Rp/1N1K1R1R/1bQ1n1Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 d5 g4 Kd7 f4 Kc6 a4 e5 g6 h5 a5 h4 f6 d3 c5 d4 g5 e4 g7 e3 f5 e2 g6 b3 f7 b2 f6 h3 a6 Ne7 g8N Qe8 g7 Bf5 a7 Be6 Kd2 e1R Na3 b1B Nc4 Qd7 Ne2 Na6 Ng3 Rd8 a8N Ng6 Nh6 Bd5 g8Q Kb5 c6 Qe6 c7 Nh4 c8Q Qg4 Ba3 Be6 Rh2 Rd7 Na5 Qg6 Ne4 Rc7 Nb6 Ng2 Bb4 Bf5 Na4 b6 Qh7 Be7 Ra2 Rf8 Nb2 Bd6 Qg4 Rec1 Qg3 Ne1 Qg1 R1c4 Be2 R7c5 Bd1 Nc7 Ra4 Na8 Bc2 Rg8 f8R Rg7 Rg8 Rgc7 f7 Be7 f8R Qc6 Nf7 Bd6 Kd1 d2 Rg3 Be7 Ke2 d1R Raa3 d3+ Ke3 Rc1 Kd2 Rd7 Qc7 Ng2 Qf4 Rf1 Qfe3 Rf4 Qc1 Ne1 Qg1 Rcd4 Bb3 Rc7 Ra1 Rdd7 Ba4+ Ka6 Rfg8 Bd6 Rf3 Bf8 Rff2 Bd6 Rg3 Bf8 Bc2 Kb5 Ra3 Be7 Bb3 Bf8 Ba4+ Ka6 Nac4 Bg6 Bc3 Rcd5 Bc2+ Kb5 Ra7 Ba3 Na5 Bf5 Bb4 Rc5 Ba4+
R2rQQ1B/1q6/1pR1K1B1/B6r/np3Q1r/npQ1b2R/k1N1br2/3BN1n1 b - - 0 1 illegal: No proof kernel
1B2b1RQ/3r4/1p2RN2/4nK1p/3bNpr1/1BqB1b1Q/3N4/NnR1knRb b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 a4 c5 d4 h5 a5 f3 a6 f2 a7 b6 g6 b3 d6 f6 g5 b2 g7 Ba6 d5 Qc7 d7 Qh2 d8Q Nh6 g8B Qc7 g6 Nd7 g7 Ne5 Nd2+ Kc3 d6 c4 d7 Bc5 Ngf3 Nhg4 Ne1 b1B+ Nc2 Bb5 Kf5 Bd4 e4 Nh2 Bd3 f1B Qg4 Rh7 Rg1 Be2 Qh3 Nf1 Be6 Rc8 g8R Bf3 a8R Rg7 Qe8 Rg4 d8N Qg7 R8a4 Rc7 Nb7 Rd7 Nd6 Ba2 Ra7 Bc6 Qd8 Bb3 Rb1 Bba4 Na1 Bh1 Qe8 Bd1 Ra8 Bdf3 Bf7 Qh8 Rg6 Qg7 Qh8 Bb5 Rg8 Ba4 Ke6 f5 Ba3 f4 Kf5 Bb5 Re6 Bc6 Bc2 Ba4 Rc1 Bb5 Bb3+ Kd3 Bb4 Ke2 Bg6 c3 Bh7 c2 Bg6 Nc4 e5 Na3 N6e4 Nb1 Bd6 Bc6 Bb8 Ba4 Rd1 c1N Bh7 Nd3 Rc1 Rg3 Rec6 Rg2 e6 Rg4 e7 Ne5 e8N Bb5 Re6 Ba4 Rc3 Ke1 Rc2 Ra7 N8f6 Be8 Rc5 Rd7 Rc1+ Bd1 Ng3 Qe7 Ba4 Qb4 Bb3 Rh4 Kg5 Qc3 Bd3 Rg4+ Kf5 Kf2 Rc2 Ke1 Nge4 Bdf3 Rc1+
1B4R1/K2Bpr2/1B3n1k/p2Nbbq1/Qn1p4/QRNQ1B2/3r1b2/Rb2Q2r b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 a5 Kc4 d5+ Kc5 g5 h4 Kg7 b4 d3 c4 d2 f4 g3 f6+ Kh6 f5 g4 f7 g2 f6 g3 b6 Bg4 h5 Qd7 b5 Qe8 b7 Rh7 Kb6 Bf5 c5 Kg5 c6 Be4 h6 Bf3 c7 Be4 c8B Bf3 Rh3 Na6 b8Q Ra7 Ne2 g1R Bg2 Re1 Qe5+ Kg6 Nbc3 Rg7 h7 Rh1 h8Q Qd7 Qh4 Qg4 Bd7 Qf5 Qha4 Be4 Bf3 g2 Nf4+ Kg5 Qf1 d1B Be3 g1B Qd3 Bc2 Qd6 Qg6 Qda3 Nb4 Bc5 d4 Nfd5 Rc7 Rg3+ Kh6 Rh3+ Qh5 Rg3 Rc8 Ka7 Rh7 b6 Qg5 b7 Bb1 b8B Bf5 Bb6 Bg7 f8R Bf2 f7 Nf6 Rg8 Rc6 f8Q Rc4 Nb5 Rc2 Nbc3 Rd2 Qf7 Bh8 Qe6 Rf7 Qe1 Nh5 Rg4 Be5 Re4 Nf6 Re2 Rd1 Rb2 Rd2 Rb3
1Q3r1B/1r1p2p1/3pnBK1/Nbbq2Nn/5R1B/nB3N1Q/n3R3/1k1b1N1R b - - 0 1 legal: proof: f4 e5 a4 exf4 d4 h5 g4 b5 gxh5 Ne7 axb5 Ng8 d5 Bb7 d6 cxd6 Qd5 Ba6 Qd1 Bc8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 e4 a5 b4 f3 c4 f6 h4 f2 h6 a4 Kh5 a3 b6 a2 h7 f5 b5 f4 b7 f3 c5 Ne7 c6 Ra5 b6 Ra8 c7 Ra5 Bb2+ Kf4+ e5 Ke4 Qb3 Ra8 e6 Nd5 e7 Ra7 e8R+ Be7 Bc4 f1B Bf6 f2 Nf3 Nc6 b8N Nd4 b7 Nc3 Nc6 Be2 b8B f1N Na5 Bd1 Kg6 Ne6 h5 Ba6 c8Q Bb5 h6 Rf8 h8N Rb7 h7 Ng3 Nf7 Nh5 h8B Qb6 Qc7 Qc6 Ba7 Qd5 Bf2 Bd8 Qb8 Bb6 B2h4 Bc5 Nbd2+ Ke3 Rb1 a1N N7g5 Nc2 Rb2 Na3 Nf1+ Kf4 Rf2 Na2 Nh7 Ke4 Qc3 Rf7 Bb3 Rf8 Re7 Qd2 Rf7 Qd5 Re2+ Be3 Qc1 Kd3 Nhg5 Bc5 Qf4 Rg8 Qh2 Rf8 Re5 Kc3 Qh3 Kb2 Re2+ Kc1 Bd8 Kb1 Rf4 Ba6 Be7 Bb5 Bf6
2N2b2/1k2qQr1/6Bq/1B3p1R/1rR2n1N/Kp2R1p1/b1Q1Rqn1/1qQBB3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Kd7 a4 b5 d4 c5 Kd2 Kc7 Kc2 f5 Kb3 g5 e4 g4 e5 g3 h6 f3 d6+ Kb7 d5 f2 e6 Qe8 d7 Ka6 d8R Bd6 h7 Bb7 e7 Bf4 a5 Qf8 e8B Nd7 d6 Ne5 d7 Be4 h5 Nf6 h6 Rc8 Nd2 Nc6 Rh2 Ka7 a6 Kb8 a7+ Kb7 Qc2 Nh5 Ra3 Rc7 Bg6 Ne7 Ngf3 Bd6 Nc4 Nd5 Rc8 Nhf4 d8Q Ng2 Qg5 Ndf4 Bd2 Rg7 Be1 Qe7 Nb6 c4+ Ka2 c3 Nh4 Rf8 h8R Bd5+ Rc4 Rb8 h7 Be6 Bd3 f1Q Nc8 Qf2 Qf6 Bc5 Qf7 Bd5 Re8 Bd6 h8Q b3+ Ka1 b4 Qh6 b2+ Ka2 Be6 Be2 Bc5 Bd1 Bd6 Kb3 b1Q+ Ka4 Nh3 Qhc1 Nhf4 Rh8 Bc5 Rh5 Bd6 Re4 Ba2 Re3 b3 a8B+ Kc7 Bc6 Rb4+ Ka5 Bc5 Bb5 Kb7 Ra4 Bd6 Qd3 c2 Qdd2 Re4 Rc4 Bb4+ Ka4 Rd4 Qb2 c1Q Qdc2 Bc5 Bb4 Qcd2 Qbc1 Re4 Ka3 Qd6 Bh7 Qh6 Bg6 Bd6 Rc5 Rd4 Be1 Rb4 Rc6 Qc7 Rc4 Bf8 Rh1 Qe7 Rf1 Qe2 Rf2 Qf3 Rd2 Qf2 Rde2
qRB3N1/R1Nr1QbN/3b4/q3p1p1/4p1n1/RQrb1Rb1/3K1k2/BNB1n3 b - - 0 1 illegal: No possible last move, all moves rejected
4Kbr1/1n2n1k1/B2ppR1N/1B2Bb1n/n1R2Q1Q/qq6/rpN2R1Q/2R1Q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 b5 Ke4 g5 Ke5 d3 f4 d2 a4 e6 h4 g4 c4 g3 a5 g2 h6 b3 h5 b2 c5 b4 a6 b3 c6 Qh4 h7 Be7 f6 Ra7 f5 Qb4 c7 Bb7 c8B Nh6 Ne2 g1N Ra4 Qc3+ Nd4 Ba3 Rc4 Rg8 h8Q Ba8 Qe1 d1Q Bf4 Rb7 a7 Rb4 Kd6 Qg4 Be5 Qh4 Ba6 Kf8 f7 Be4 a8Q Qhh3 Be2 Bc2 Qf3 Nc6 Qf4 Na5 Qf6 Qhe3 Q6h4 Ra4+ Kc7 Bb4 Kd8 Ra2 Na3 b1N Qhh2 Bd3 Nac2 b2 Qhh4 Nh3 Bf1 Ng4 h6 Qa3 h7 Nf6 h8Q Nc3 Q8h5 Kg7+ f8R Qg3 Qhe2 Na4 Qh2 d6 Be2 Bd2 Rf1 Be4 Ke7 Qgc3 Rfc8 Qcb3 Rf2 Ng5 Bd3 Nf7 R8c7 Nh6 R7c5 Kh7 Bb5 Nh5 f6 Kg6 f7 Nb7 f8R Nf5+ Ke8 Ne7 Nf5 Be3 Nh6 Bf5 Ba6 Bc1 Rd4 Bd2 Bdb5 Be3 Rd1 Bd4 Rc1 Kh7 Bh8 Bg7 Rc4 Kg6 Kd7 Kh7 Rf6 Bf8 Ke8 Qh3 Rg6 Qhe3 Be5 Qeb3 Rf6 Kh8 Qfe4 Kg7 Qef4
8/5r2/Bp1bp1r1/BbR2q1r/n2N2rp/R1R1R1N1/knN2q1Q/2KBNQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 a4 c5 f4 h5 g4 e6 g5 c4 a5 h3 g6 b6 g7 h4 f6 b3 a6 h2 f7 b2 a7 Qg5 Ra3 Qf6 f5 Na6 Qe2 Bd7 Nf3 Rc8 a8B Re8 Re3 Rd8 Na3 b1Q Nc2 Qb2 Ne1 Ne7 g8N Ba4 Nh6 Qe5 f6 Re8 Nf5+ Kd7 d6 Qe4 d5 Nc8 Ng3 c3+ Kd1 Rh7 Bd2 Nc5 Qg2 Rg7 Ba6 Re7 Qh3 Qa2 Kc1 Qf5 Rg1 h1R Qh2 Rg6 Bc6+ Kd8 d7 Kc7 d8N Kd6 Ba8 Bb5 Nc6 Rc7 N6d4 Na4 Rg2 Kc5 d6 Kc4 d7 Nd6 d8R Be7 f8R Rg1 f7 Ra7 Bf3 Rg4 Nc6 Kb3 Rc8 Nc4 Bd1 Ncb2 Rh8 Bd6 f8Q Rf7 Rh5 Rg6 Rf2 Rg4 Rff3 Rg6 Ne2 R1g4 Ng3 Qa3 N6d4+ Ka2 Rc6 Qb3 Rc5 Qc4 Rg5 Qe2 Rc4 Qf2 Rb4 Qe4 Rc5 Qd5 Rb3 Qf5 Na3 c2 Ba5 R4g5 Rec3 Rh5 Rfe3 Qf1 Kd2 c1R Nac2 Q1f2+ Nge2 Q2f3 Ng2 Rff6 Qf7 Q5f4 Qf8 Rg4 Ng3 Q3e4 Bf3 Rf1 Nge1 Rfg6 Bd1 Qff3 Kc1 Qg2 Qe7 Rf7 Qf6 Qd3 Qf4 Qf5 Qf1 Qgf2 Ra3#
nk3n2/1b1p1Nr1/p1R2Rq1/1q2Q3/1b2B2b/1bN1rR2/Np2QN2/2BQK2R b - - 0 1 illegal: No proof kernel
2RQNq1N/1pR3Q1/BB3r2/4qNKp/q1pq4/2Q4r/2b3N1/bRn2Rkn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 a4 Kd4 g4 h5 d6 c5 f6 e5+ Kg5 h3 f4 h2 a5 b3 a6 e4 a7 b2 f5 e3 d7 e2 Nf3+ Ke4 d4 e1Q d5 Bd6 Nbd2+ Ke3 Ba6 Kf2 Qc2 b1Q Nc4+ Qd2+ Ne3 c4 Nd4 Nc6 Rf1+ Kg3 Qc3 Qdb6 d8R h1Q f7 Kh2 f8N Qe1 f6 Qa5 f7 Ne5 Ng2 Ne7 Be3 Qa4 Rd7 Qbd1 Rb1 Nd3 Rc7 Bf5 Ng6 Rhf8 Nh8 Be5 d6 Nc1 d7 Bc2 Nf5 Qd4 d8Q Bg7 Bf2 Qee5 Be3 Qg1 Bf2 Qdd6 Bc5 Qgd4 Bb6 Rb8 a8Q Rc8 Qd7 Rce8 Qad8 Bf6+ Kh6 Qdb4 g5 Qba3 g6 Q3b4 Rf4 Kg1 g7 Qba3 g8N Qac5 Nd6 Nf5+ Kg6 Re7 Nh6 Ng3+ Nhf5 Nh1 Ne8 Re6 Q7e7 Rg8+ Kh6 Rg3 f8R Rh3 Qh7 Bg7+ Kg5 Rf6 Rf1+ Kh2 Rc8 Qcb4 Rf7 Qf8 Rf2 Kg1 Rfc7 Qdd6 Qh6 Qdd4 Rf1+ Kh2 Qa5 Qee7 Rb3 Qda1 Qad5 Rd6+ Qf6 Qe3+ Rf4 Kg1 Qf3 Qc3 Qf7 Qca5 Rb5 Ba1 Qg7 Qd4 Rb1 Qe5 Qc3 Rf6 Rf1+
qbbQQ1k1/2nB4/4NQ2/1p3RrN/nQ2B2p/3rBb1R/1RKRp2p/3n4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 e5 a4 b5 g4 h5 f4 c5 a5 e4 d6 c4 f6 h3 d7 h4 d5 c3+ Kc2 e3 d6 e2 f5 Rh5 g5 Rh7 a6 Be7 g6+ Kf8 a7 Qc7 f7 Nc6 d8R+ Kg7 f8R Bd7 f6+ Kh8 f7 Ne5 Be3 Qb8 Ra2 Nc4 Rb2 Rh5 Qe1 Bc8 d7 Nb6 Nf3 Bd6 Nd4 Na4 Nd2 Rg5 g7+ Kh7 Qb1 Ne7 Ne4 Nd5 Ng3 Nc7 Nh5 Be5 Ne6 b3+ Kc1+ c2 g8Q+ Kh6 Kd2 c1N Qe4 Bg3 Qb4 Nd3 Bg2 Nf2 Bc6 Qb7 Qh8+ Kg6 Qf6+ Kh7 Rh2 Rb8 a8B Nd1 Kc1 Qa6 Bab7 Qa8 Be4+ Rg6 Bbc6 Rb7 Rg2 Bd6 Rg3 h2 Rh3 Rb6 Rde8 Bf4 d8Q Be5 Bd7 Rd6 Qde7 Rd5 Rd8 Rd3 Qe8 Bg3 Rg8 Bd6 f8Q Bf4 Qfd6 Bg3 Rf8 Be5 Rd2 b2+ Kc2 b1B+ Kc1 Bg3 Rb2 Ba2 Kc2 Bd5 Qb6 Bf4 Qb8 Bh6 Rf7+ Bg7 Nf8+ Kg8 Qf3 Bdb7 Rf5 Be5 Qf4 Rg1 Qh6 Rg4 Qf6 Rg5 Qa3 Rb3 Bec6 Na6 Qb4 Ra3 Qc7 Qb8 Bg2 Qa7 Bdc6 Qa8 Rd2 Rd3 Qcd8 Bb8 Bd7 Nc7 Bh1 Bf3 Bg2 Bg4 Be4 Bf3 Ne6+
r1kBB3/R1nB1qp1/1rbbp1bp/pN3n1R/4Q2Q/QK5N/5B1Q/4R1r1 b - - 0 1 illegal: No possible last move
3qn1n1/N1p1N2N/2BQ1BB1/1nppbRKQ/4r3/4r1k1/3bR1p1/BQQ2b2 b - - 0 1 illegal: No proof kernel
2Q5/1QN1R1K1/b5N1/p1bn2pq/rpBQ2bp/BN4q1/4RB1r/nQ2N2k b - - 0 1 illegal: No proof kernel
1n3B1R/2pQq1n1/q2k1b2/1RNbpQ1Q/B4qrp/1Bp2r2/2K2Q2/1R4RN b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 d4 Kd7 Kd2 h5 g4 e5 f4 a5 b4 a4 d5 h3 d6 h4 b6 h2 g5 a3 f6 a2 f7 c3+ Kc2 Nc6 b5 Nb8 f5 Qf6 g6 Ra7 g7 Rh6 b7 Nc6 b8R Rh8 b6 Ra6 b7 Nd8 Ba3 Ra5 Nh3 Ra4 Bb5+ Nc6 Rg1 h1Q Nd2 Qg5 f6 Rf4 Nf2 Qg6+ Nde4 Rf3 Ba4 Rh5 Rb1 Nh6 g8B Bg7 f8Q a1Q Bgb3 Qh2 f7 Qf4 Nh1 Rg5 Ra8 Nf5 b8R Qf6 Rb5 Nb8 Nc5+ Kc6 d7 Bb7 d8Q Rg4 Qc8 Bh8 Qg7 Qd8 f8Q Qe7 Qh6+ Bf6 Qh5 Ng7 Qcf5 Bc8 Qff7 Bb7 Qf1 Kd6 Qf2 Nd7 Rh8 Bd5 Qe8 Nb8 Bc1 Qh2 Bh6 Qf4 Qef7 Ne6 Bf8 Ng7 Rb2 Qf1 Rb1 Q1c4 Nd3 Qc6 Nc5 Qa8 Qe8 Qa6 Qed7+
1BBk3R/q1r1RR1p/5KNr/Q1B1N1NQ/1b6/5p2/ppb2bb1/1n3BRn b - - 0 1 illegal: No possible last move, all moves rejected
b4B2/B2RN2p/2nN1Rp1/Np2QNrp/q1Bb3Q/7R/n2r2B1/3kbK1b b - - 0 1 illegal: No proof kernel
2QQ3r/2p5/nQ2ppNr/K2RRB2/b2BRn1b/QR3Br1/2rk3p/N4q2 b - - 0 1 illegal: No proof kernel
4k2N/R2rB3/K1bp1ppR/n1N1R2Q/3br1p1/N7/qQ1pBB1N/2R1b1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 a5 Kd3 d6 Kc4 d3 e4 a4 h4 a3 b4 a2 h5 Qa5 e6 Qa6 h6 Be7 h7 Bd8 e5 Qb6 e7 Bc7 Qd2 Na6 Na3 Ra7 Be2 Qb8 b6 Be6+ Kb5 Qd8 c4 Bd5 c5 Qd7+ c6 Qd8 b7 Bb8 c7 Bb3 c8R Nf6 Rh6 Bd5 Qb2 Kd7 e8R Nc5 Bg5 d2 Nf3 Nh5 Nh2 Nb3 Rcc1 Nf4 Be7 Rf8 h8N f6 Nc4 Bc7 b8B Nh3 Na3 Bb6 Bc7 Bc5 Bb6 Bf2 Be3 Rc7 Ka6 Bc6 b5 Ng1 b6 Na5 b7 Be1 Bf2 g6 b8N+ Kc8 e6 Rd7 Rc5 Kc7 Rac1 a1B Re5 Rf7 Rf8 Rg7 Rf7 Rg8 Rfh7 Qf8 Rg7 Qf7 Rgh7 Re8 Rg7 Rdd8 Nd7 Kc8 Nc5 Rd7 Bf8 Kc7 e7 Qa2 Rgh7 Rb8 e8Q Rb4 Qe6 Kd8 Qf5 Re4 Be7+ Ke8 Rg7 Nb7 Qh5 Na5 Qb5 Bc3 Qb2 Bd4 Bd8+ Re7 Rf7 Re6 Ra7 Re7 Rg5 Rc7 Be7 Rd7 Re5
B2Q4/1RBNrb1p/3pnpr1/1RpB1Kb1/Q3Q1nR/rR3N1q/1Q5p/2k5 b - - 0 1 illegal: No proof kernel
4k3/n2pBbQ1/n2pBRBB/Rq1r3R/4pb2/p3Q1N1/p4KN1/rq2Q1R1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 Na6 a4 bxa4 d4 Nb8 d5 Nc6 d6 cxd6 Qd4 Nb8 Qg4 Nc6 Qd1 Nb8 h4 a5 c4 g5 b4 e5 f4 g4 b5 g3 f6 g2 b6 a3 b7 a4 c5 Bh6 c6 Kf7 f5 Qc7 Nh3 g1Q Nc3 Qh2 Bd3 Ne7 Nf4 Qh3 Nce2 Ng6 Kf2 Rf8 Rg1 Na6 b8Q Nc5 Qbb3+ Ke8 f7+ Ke7 f6+ Kd8 Ng3 Rg8 f8B Bg7 h6 Bb7 h7 Rb8 h8Q Qg4 h5 Na6 h6 Qa5 h7 Ne7 f7 Nc8 Qe1 Qd1 Bg6 e4 Qbe3 Qb5 Ng2 Bh6 Qg7 Bf4 h8R Na7 Rh5 Ra8 Bd2 Qdb1 c7+ Kc8 Ra2 Bd5 Be7 Re8 f8R Bf7 Bd8 Re5 Be7+ Be8 Rff5 Bf7 Rf6 Rd5 Ra1 Kb7 c8B+ Kc7 Bf8 Kd8 Be7+ Ke8 Bb7 Rd3 Bc1 Rd1 Bd5 a2 Be6 a3 Rc5 Rd5 Rh1 Rc8 Rh5 Qa4 Ra5 Qab5 Bd2 Rc1 Qb3 Be5 Bh6 Bf4 Qbe3 Q1b4 Rb1 Rcd1 Rb2 Ra1 Rb1 Qb2+ Q1d2 Q2b3 Rg1 Qb1 Qde1
6r1/4NNq1/1nqr4/k2BBrBb/q1RQp1B1/B3b2K/3nr3/1R1B1N1N b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 d5 cxd5 f5 e4 fxe4 a4 axb4 axb5 Bg7 Qf3 Bh6 Qd1 Bf8 d4 Kd7 f4 h5 Kf2 c5 Kg3 Kc7 d6+ Kb6 g6 e5 d7 h4+ Kh3 c4 g4 e3 g5 e4 g7 b3 d5 e2 d6 e1Q g6 b2 f5 c3 f6 c2 f7 Nc6 Ra4 Be7 f8B Rh5 Rc4 Qc7 Bg5 c1Q Ne2 Nf6 g8B Nd5 g7 Na5 Ng3 Qb4 Nd2 b1R Be6 Qa4 g8B Rb2 d8N Nb3 d7 Bc5 Nc6 Be3 d8N Qg7 Ne7 Ka5 Nf7 Nb6 Be2 Bd7 B6g4 Be8 Ndf1 Nd2 Rg1 Rd8 Nh1 Rd6 Bef3 Qcc2 Qa1 Ra2 Bd1 Qcc3 Rb4 Qc6 Qd4 Rb2 Rc4 Rc2 Kg2 h3+ Kg3 h2 Kg2 Nd7 b6 Rb2 b7 Nb6 b8B Rc2 Nf2 h1R Bc7 R1h3 Nh1 Rf3 Bb8 Rf5 Kg3 Rh2 Bc7 Re2 Kh3 Rd8 Be5 Rd6 Nh6 Rc3 Bd5 Bh5 Nf7 Qcb5 Rb4 Rc8 Rb1 Qc6 Rg3 Bf2 Rc3 Be3 Rc4 Rcd8 Nc8 Re8 Bfe7 Rg8 Bf8 Rh6 Ba3 Rd6 Ne7
b2K2b1/2r1r3/B4B1r/3RbN2/2B1Nn1n/3RB3/Rp1bQb1k/1b1R1RR1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Nb8 h5 Qd6 Bc4 Ra3 Bf1 Qg6 hxg6 Ra8 Kf2 Kd7 Kf3 Kd6 Kg4 Ke5 a4 b5 d6 h5+ Kh4 c5 f6 b3 d3 b2 f7 b4 d7 b3 d8R c4 a5 f3 a6 f2 a7 c3 g7 c2 g6 Nh6 Kg5 h4 g8B h3 g7 h2 Nc3 b1B Nb5 b2 Qd2 Be6 Ra4 Na6 Nd4 Nf5 Nh3 Nh4 Ra3 Nc7 Nf5 Rc8 a8R Nd5 d4+ Ke4 Ra2 Kf3 Ba6 Kg2 Qe2 Rc7 Rd1 h1B Be3 Nf4 d5 c1B d6 Rh6 d7 Bd2 Rab8 Kh2 Rb3 Ba8 Rd3 Bb3 Rd5 e5 Rd3 Bc5 f8R e4 Bgc4 Bd4 g8R Be5 Rg6 Bd6 Kf6 Be5+ Ke7 Nhg2 Bab5 f1R Nf2 Nh4 Ba6 Rg1 Rgg8 Rg7+ Ke8 Rf7 Rgg1 Rfh7 Rfg8 Rg7 Rgf1 Rf7 Rgg1 Rfh7 Bcb5 Bg8 Bc4 Rg7 Rc8 Re7+ Kd8 Rb7 Rc5 Rc7 Bd4 e3 Rd5 Be1 Ne4+ Bf2 Qf3 e2 Be3 e1B Qe2 Rg7 Ke8 Ba5 d8B Bd2 Bf6 Rge7+ Kd8
2b1R1Kb/1brQBN2/6Np/n5pk/2B1B2N/2nN1B2/1r1N1q2/rR1N1b2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 Bf5 axb5 Be4 f4 Bg2 h4 Qd6 h5 Qg6 hxg6 e5 Rh3 exf4 Rh1 Bh3 Qc2 Bxg4 Qa4 Bf3 Qd1 Bg2 Kf2 c5 d4 a5 e4 f5 b4 f3 Ke3 c4 e5 a4 b6 h6 g7 Kf7 b5 Kg6 d6 f4+ Ke4 a3 Kd5 c3 Ke6 c2 d7 f2 d8N a2 b7 f3 d5 Nc6 b8N Ra6 d6 Nge7 g8B Ra7 d7 Nf5 b6 Bh3 b7 Bc5 Ba3 c1R Bc4 f1B Nd2 f2 Ngf3 Nce7 Bh7+ Kh5 Kf7 Nh4 e6 Neg6 e7 Rb1 e8B Rg8 Ndc6 Rb3 d8N Rb2 Nd7 Rb1 b8N Nf5 Ncd4 Nge7 Nc2 Bd4 Nc5 Nc6+ Nbd7 Ng3 Ne3 Rb2 Be4 Bg2 Nd3 f1B Nh4+ Ne2 Rb1 a1Q Be7 Na5 Nf8 Bh8 B8c6 Rc7 Nfg6 Qa2 Bf3+ Bg4 Bce4 Nc3 Qa4 Re8 Nd1 Rg8 Qd7 Re8 Nc6 Ra8 Nce5 Ra6 Kg8 Raa7 Bf5 Ra6 Nf7 Raa7 Ba8 Bb7 Be4 Bf5 Qd8 Bfc8 Qd7 Qa3 Rh2 Qc5 Re2 Qf2 Bg2 Ba6 Bae4 Bab7 Bh1 Nb3 Re1 Ra1 Re2 Na5 Re1 Qg3 Bhf3+ Qg4 Bd8 Bf6 Bc6 Bd4 Re8 Bh8 Bfd5 Qe6 Be7 Qf5 Bh1 Qc5 Bce4 Qf2 Bhf3+
RN1r2b1/4B3/6N1/K1Bkb3/1B2BpRR/1b1r2q1/1RpB2B1/1nQb2qn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 f5 g4 c6 e4 h3 b6 c5+ Ka5 h4 b4 c4 g5 a6 g6 c3 b5 c2 g7 f3 Ne2 f2 Bg2 f1B Nd2 h2 Nf4 h3 Ng6 f4 Nf3 Qc7 Nfe5 Bg4 Bd2 Ne7 g8R Nf5 Nd7 Bg7 Qc1 Bc4 Ra2 Bh5 Rb2 Bb3 Bb4+ Qc5 b7 Bd1 Bf3 Ng3 e5+ Kc7 e6 Kd6 e7 Be5 Rg7 Rd8 e8B Ra7 Bd2 Qc4 b6 Qd3 Ndf8 Qe4 Bc6 Nd7 b8R Nf6 Ra8 Rad7 b7 Qe1 Bg2 Nfe4 Rg8 Nc3 b8B+ Rc7 Nd7 Nb1 Bb7 Qe3 Ba7 Rc3 Nb8 Rd3 Bc8 Qg1 Bg4 Qe1 B4f3 Qf2 Rg1 h1Q Rh8 h2 Rh4 Qe1 Kb6 a5 Kb5 a4 Ka5 a3 Bc5+ Kc7 Bcb4 Kb7 d6+ Qe4 d5 a2 d7 a1Q+ Ra2 Qad4 d6 Qf2 Rb2 Qe3 Na6 Kc6 Nb8+ Kd5 Bc5 Rg8 d8B Qe1 Be7 Rd8 d7 Qe3 Re1 Qhg1 Bcb4 Qef2 Bec5 Nh1 Re3 Qg3 Re2 Rg8 d8B Rf8 Bde7 Rd8 Bdc3 Nf2 Bd2 h1B Bf1 Bg2 Re1 Bh3 B1g2 Be6 Rf1 Bg8 Rg4 Q1h2 Rh1 Qg1 Rhh4 Nh1 Bxe4+
4NqBb/q7/BkN1p1N1/3N2B1/1N1Bb1q1/1Q1r1bp1/1n1qn2R/3N1K1R b - - 0 1 illegal: No possible last move
Q2BbR1K/5qR1/B1b1N3/2kbB2p/8/q1Nq1B1r/N1r1p1N1/1NbNq3 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 axb5 Nh6 f5 Na6 d3 Nc7 d4 cxd4 f6 Nf5 gxf5 g4 Bg2 Ne6 Bf1 Ng5 hxg5 Qb6 Bd2 Qc7 Bc1 Qd8 Kf2 a5 Kg3 e5 Kh4 h5 b4 d5 c4 Kd7 c5 g3 g6 g2 Kg5 d3 g7 d2 Kg6 e3 g8N e2 b6 Kc6 f7 e1Q f6 e4 b5+ Kd7 b7 e3 b8B a4 b6 Kc6 b7 e2 Nh3 g1Q+ Bg2 a3 Be5 a2 b8N+ Kb5 c6 d4 c7 d3 Ne7 Be6 c8B Qh2 Qa4+ Kb6 Ba6 d1B Rf1 d2 Bf3 Qef2 Nbc6 Bh6 f8N Qb8 f7 Qf4 Nb4 Qd8 Ned5+ Kc5 Ndc3 Qe1 Nf2 Bd5 Rg1 Rg8+ Kh7 Rg3 Ng6 Rc8 f8N Qf7+ Kh8 Rh3 Nh4 Bc6 Rg7 Qd3 Bb2 Bb3 Nfd1 Bbd5 Ng2 Rc7 Bf6 Be8 Bd8 Bg5 Nf2 d1B Qa3 Bda4 Nfd1 Bac6 Ne6+ Kd6 Bb7 Bc1 Qa8 Rc8 Ba6 Rc7 Na3 Rc8 Rb1 a1Q Nba2 Bd2 Rc1 Rc7 Rc2 Bc1 Nab1 Rc8 Nb4 Qa3 Nba2 Rb8 Ba1 Rb2 Rd2 Qdg6 Rd4 Qd3 Rf4 Rc2 Na4 Qe7 Rf8 Qf7 Baf6 Qb2 N4c3 Qa3 Ng5 Kc5 Bd4+ Kd6 Be5+ Kc5 Ne6+
rN1R1r1Q/qNBN4/Rb1r4/1R1n4/1p1b3R/N2bNp2/K1B3kp/3r1N2 b - - 0 1 legal: proof: c4 a5 g4 f5 h4 g5 b4 d5 cxd5 axb4 Bg2 e5 Bf1 Nd7 f3 Ndf6 f4 Ne4 gxf5 exf4 Bh3 g4 Bf1 Ng5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 e4 Kd7 d4 Kd6 Kd2 b5 Kc2 h5 Kb2 c5 a4 b3 f6 c4 g6 h4 f7 f3 g7 b4 a5 h3 a6 g3 e5+ Kc7 a7 g2 e6 Kd6 e7 Rh5 e8R Rb8 a8R Bg4 Ne2 g1R R8a5 Rg3 Rb5 Rf5 Bf4+ Re5 Ra6+ Qb6 Na3 Bc8 Qa1 Nf6 g8N Ra8 Ne7 Rg6 Ng3 Bg7 f8N Bf5 Bd3 c3+ Kb1 b2 Nf1 c2+ Ka2 c1B Bc2 Bd3 Nf5+ Kc7 Rh2 b1R d6+ Kc6 d7 Be3 Rh1 Rd1 d8N+ Kc7 d5 Qa7 Qb2 Bb6 N5e3 Kd6 Nc6 Rh6 Nb8 Rh8 Rg1 h2 Rg4 Rh6 Bg3 Bh8 Rf4 Rf5 Rh4+ Rf4 Re4 Bg7 Rd4 Ke5 d6+ Bc5 Nd5 Bb6 d7 Kf5 d8N Kg5 Rh3 Kg4 Nb7 Rg6 Rh8 Rh6 Re4 Kh3 Nfd7 Kg2 Rd8 Rf5 Bc7 Bh8 Ne7 Nd5 Rh4 Rf8 Nf5 Rd6 Qf6 Bg7 Qh6 Ba1 Qh8 Bad4 N5e3+
N2R1b1k/b4Np1/pQrN1q1N/1Bp1R2N/1BnN3b/1K6/pB6/3Brb2 b - - 0 1 legal: proof: b4 d5 g4 h5 e4 hxg4 c4 f5 exf5 a6 cxd5 Rh3 b5 Rh8 b6 Nc6 a4 Na7 bxa7 b5 Be2 bxa4 Bd3 Be6 Bf1 Bc8 h4 Kf7 f4 e5 d4 c6 Kd2 g3 Kc3 e4 h5 a3 f6 g2 d6 e3 d7 a2 d5 e2 d6 e1B+ Kb3 Qa5 d8N+ Ke8 h6 Qg5 f7+ Kd7 h7 Qe7 f5 Bg3 f6 Bb7 Nd2 Nh6 Ndf3 Qe4 Nh3 g1B Nd4 Be7 f8B Ke8 f7+ Kd7 Nf4 B1f2 Bb5 Bg1 Bb2 Bgh4 Nh5 Qb1 N8e6 Bc8 Nc7 Rg8 h8N Qf5 Qb1 Rb8 a8B Kd8 d7 Ba3 Bb4 Qf6 f8N Rb6 Nh7 Re8 Ng5 Ng4 Qg6 Re4 Rd1 Ne5 Rh3 Re1 Re3 Nc4 Re5 Be3 Bb7 Bg1 Na8 Bgf2 B4c3 Bf8 Bb4 c5 Be4 Rc6 Bf3 Bfg3 Rd2 Bh2 Bd1 Bb7 Ree2 Bhd6 Re5 Bb8 Qb1 Ba7 Rd3 Re6 Nhf7+ Ke7 d8N Bg2 Nb7 Bh3 Nh6 Bf1 Rf5 Rb6 Nd6 Rc6 Re5+ Qe6 Ng3 Kf6 Nh5+ Kg6 Nh3 Kh7 Ng5+ Kh8 Rd2 Qe7 Qg6 Qf7 Qf6 Qc7 Qd8 Qf7 Qb6 Qf3+ Rd3 Qe4 Nb7 Rd6 Ndf3 Rg6 Rd8 Qf4 Nd4 Rc6 Nd6 Qf6 Ngf7+
2qB1k2/1qr2Q2/3bnR2/R2b1Rb1/K2R1B2/b1Nqb3/2NB2Br/3nnR1R b - - 0 1 illegal: No possible last move, all moves rejected
R4q1r/1qq3RR/1RN4b/2RK1R1B/nr4bQ/1k1NB3/n2bN2N/qq3n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 a5 g6 a4 g7 a3 b6 h3 d6 h2 d7 a2 b5 f3 d5 f2 d6 f6 b7 h4 b6 h3 Nd2+ Kc3 Qe1 f5+ Kd5 f4 e4 f3 e5 c4 e6 Kb4 e7 c3 e8R c2 Re5 Qc7 d8R Bg4 d7 Na6 b8R Nc5 b7 Ra4 Be2 f1Q Qh4 f2 Ndf3 Kb3 Be3 c1B Rdc8 Rb4 d8N Bd2 Rf5 Na4 Nc6 Qb1 Nce5 f1N Nd3 Nf6+ Ke6 Ne4 g8R Bh6 Rg7 Nec3 Bd1+ Qc2 Ne2 Qf7+ Ke5 Qf8 Rc1 a1Q Rc6 Ka3 Rb6 Kb3 Ra8 Na2+ Kd5 Qb1 b8N Qa1 Rg1 h1Q Nc6 h2 Rh7 Qb1 Rg3 Qg1 Rg2 h1Q Nh2 Qa1 Nef4 Qb1 Bf3 Qa1 Ne2 Qcb1 Rc5 Qf2 Be4 Qg3 Bf3 Qc7 Rg1 Bh3 Rgg7 Qg2 Rd7 Qgg7 Bh5 Bg4 Rdf7 Qb7 Rd7 Qge7 Rc7 Qed8+ Rcd7 Qdc7 Rdg7
nnq3br/1R2R1qB/qB6/Bk5K/2BR1bn1/Qn1B4/R3BNN1/2r3rb b - - 0 1 illegal: No possible last move, all moves rejected
B1r1Rb2/q2B2kb/bQ1R1B2/Kb2q3/3NB1RB/2rB1bn1/n7/bb1R1N2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 b4 f5 g4 Kf7 e4 a5 c4 h5 b6 d3 Kc3 f3 g6+ Kf6 g7 a4 b7 d2 e5+ Kg6 e6 h4 g5 f2 c5 f4 b5 f3 Kb4 a3 b6 h3 e7 d4 e8R h2 Qb3 d1B Nd2 a2 Bd3+ Bf5 Ne2 f1B Rg1 h1B Rg4 Na6+ Ka5 f2 b8B Nf6 g8B Ne4 c6 Qd7 b7 Rh3 c7 Bc2 c8B Kg7 g6 Ng3 Qb6 Bf3 Bd5 Bb1 B5e4 Nb4+ Ba7 Qc7 Bd7 Rc8 b8R Qf4 Ba8 Qe3 Bde4 d3 Nd4 B1e2 Nf1 d2 Re6 d1Q Rd6 Bb5 Bd3 Qe5 Bg5 Qc1 Bde4 Qc7 Bd3 Bc2 Rd1 a1B Bae4 Bb1 Ba8 Kg8 g7 Na2 Bh4 Kh7 g8B+ Kh8 Bae4 Bh7 Bgd5 Qc5 Bg5 Kg7 Ba8 Ba6+ Qb5 Qc7+ Bb6 Qcc5 Bbd8 Qa7 Bde7 Rc2 Re8 Rc8 Nh2 f1B Qc5 B1e2 Nf1 Kg8 Bh4+ Kh8 Beg5 Kg7 Bc2 Beb5 Qb6 Rh2 Bcd3 Rhc2 Bab7 Rc1 Ba8 R1c3 Bf6+
2rR4/3BB3/nbNK1RN1/B3nb1n/R7/1BnBq2R/1qn2Qk1/Bb1b2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 f5+ Kf3 h5 e4 c5 b4 c4 g4 h3 b6 h2 g5 a4 b5 h4 b7 h3 b6 a3 g6 c3 g7 a2 Qe1 c2 Bc4 Qe7 Qe2 Nf6 g8B Nh5 Bd3 Na6 Bd2 c1Q b8R Qb2 b7 Bh6 Bf7 Rg8 Nc3 Bg5 Rf1 a1N Na2 Nc2 Qf2 Bh4 Ne2 Rg1 Be1 Be6 Rg8 Rc8 Rg4 Qe8 b8R Bd8 Bc3 Bb6 Nb4 Bd7 Rh4 Ba4 Nc6 Bb3 Rc1 Ba2 Ra1 Bb1 e5+ Kc7 e6 Kd6 e7 Rc7 Nd8 Qa2 Rb7 Rc8 Be4 Rg8 Rd1 h1B+ Qg2 h2 Nc6 Rg5 Ba5 Qb2 Rh3 Rg4 Ra4 Rg3+ Kf2 f3 Rf1 f4 Bd3 Rg7 Qg3 Bg2 Ra7 h1B Bc3 Qc1 Ba1 Qh8 e8B Qb2 Bc4 Qh6 Bb3 Qg5 Bg6 Qe7 Bd3 Qg5 Kg1 f2+ Kh2 Be4 Qe3 f3 Nf4 Qe5 Qe2 Rg3 Ng6 Qe7 Rb7 Rg1 Rc7 Qg5 Rf7 Bg2 Rf8 Qe3 Rg8 Nf6 Kg3 Nd7 Rd1 f1N+ Kg4 Ng3 Rf1 Qf2 Kf4 Qe1 Qd2 f2 Qe3 Bef3 Rgh8 Ne4 Kf5 Kc7 Ke6 Bd1 Qf4+ Ne5 Qf6 Ba5 d6+ Kb6 d5 Kc5 d7 Qe3 d8B Nc3 d6 Be4 Be7 Bb6 Nb4 Kd4 d7 Bh1 Kd6 Be4 Bdc4 Bd3 Nc6+ Ke4 Rg8 Qg3 Qh4+ Kf3 Qd4 Be4 Bd3 Kg2 Qe3 Qf3 Qf4 Qe3 d8B Ba7 Ba5 Bb6 Bdc4 Bd3 Bd7 Be4 Rd8 Bd3 Re1 f1N Qf7 Ng3 Rf1 Be4 Bd3 Nh5 Qf4 Ne1 Qh4 Nc2 Rf6 Bf5 Qf2+
NR4qr/3NQ1NN/B3Bn2/1r1RB2q/2N2N2/1qq4r/1b1qBn2/1rkb1K2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 g4 f5 d6 c5 d7 a5 e5 h5 d5 c4 e6 h3 e7 a4 e8B h4 b6 a3 d6 a2 b7 h2 b5 h3 b6 c3 Qd2 c2 Bb2 Nc6 b8N Ra5 b7 Nb4 Qe2 f3 Na6 Kf4 b8N Nf6 g5 Bg7 g6 Rb5 Nd2 c1Q+ Kf2 Qc4 Rd1 a1Q Nc7 Qb3 Nc4 Ba6 Bf7 Qg8 d8N Qaa2 Bc3 Qd2 d7 Bb7 Bb2 Be4 Bd5 Bc2 Bb7 Qbc3 Rb1 Bd1 Nf7 Qb3 d8N Qbc3 Bg2 Nd3+ Kf1 f2 Qe7 Qb3 Na8 Qdc3 Nce5 Ke3 Ng5 Kd2 Nbd7 f4 Ne2 Kc2 Rg1 h1R Nh7 h2 Nc4 Qd2 Bgf3 Qdc3 Kg2 f1R Ne6 Nf2 Ba6 Re1 Bh5 Qd2 Be5 f3+ Kg3 Qdc3 N2f4 Rf1 Rb2+ Kc1 Rd2 Re1 Rd5 Re3 Re1 Rf1 Re2 h1Q Bg4 Qh5 Rb2 Nh3 Kh2 f2 Kg2 Qd2 Bf3 Rfe1 Be2 f1Q+ Kh2 Qbc3 Rb4 Qff3 Rb3 Bh6 g7 Rd3 Rb2 Qfe3 Kg2 Nf2 Rb3 Qb6 Rb4 Rh3 Rb2 Qgf7 g8B Bg7 Nec7 Qe8 Be6 Qg8 Ne8 Qbe3 Rb4 Qb3 Ned6 Qec3 Nf5 Rc5 Rb8 Rb5 Qd8 Bf8+ Ng7 Ba3 Qe7 Bb2 Bf3 Re2 Kf1 Re4 Ne3 Ra4 Nc4 Ra1 Bfg4 Rb1 Be2
5bbN/2q2B1R/KRBr1q1R/1B1B1B2/nb1Qn3/kp2q2N/2R4B/1n3rq1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 a4 Ke7 e4 Kd6 Ke2 Kc5 Kd3 b5 g4 f5 e5 h5 g6 h4 g7 b3 g5 Kb4 a5 c5 g6 h3 e6 h2 a6 f3 a7 b2 d6 f2 d7 f4 e7 f3 e8B Be7 Bh3 f1N Nc3 f2 Nce2 Ba6 Rb1 Nf6 g8B Rh6 g7 Qc7 d8R Ka3 Bgf7 b4+ Bb5 Bf8 Kc4 Nbd7 g8B Ne4 d4 Rd6 d5 b3 Rb8 Bb7 Qd4 Bc8 Bf4 Nfd2+ Kd3 f1Q Rc1 b1Q+ Rc2 Qf2 Bf5 Qa1 Nh3 Nb1 Kc4 Qe3 Rb6 Rb8 a8B Qb2 Rd1 h1Q Bh2 Qhg1 Bac6 Bb7 Nef4 Rd8 Qg7 Qf6 Ng6 Re8 Nh8 Re5 B5e6 Rf5 Rd4 Rf2 Bf5 Rf1 Rdd2 Ba6 Rg2 Bc8 Rg6 Ba6 Rh6 Bb7 Ba4 Bc8 Kb5 c4 Ka5 c3 Bab5 Ndc5 Qg4 Bd7 Rh7 Na4 Ka6 Be6 Rh6 Rd8 d6 Bd5 d7 Bc4 Rg2 c2 Qh4 c1B Rc2 Bd2 Qg4 Nf2 Qd4 Ne4 Bfd5 Bdb4 Bgf7 Re8 d8R Re6 Rd7 Rd6 B7g6 Qe1 Rdh7 Qd2 Ba8 Qde3 Bdc6 Bg8 Bf7 Qgf2 Bcd5 Qg1 Bac6
1r1b4/3N3N/N1Q1N1br/B1n2B1k/2Rn1rrr/1N1r1p1q/N1RR4/1R1nK3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 e4 c5 b4 f5 g4 Kf7 b6 Kg6 d6 h5 d7 h3 g5 c4 d5 f3 b7 a4 e5 h2 e6 a3 b5 f4 e7 c3 e8N h4 d6 h3 b6 c2 Bb2 c1R Ra2 Nc6 b8N Rc3 b7 Be7 Nf6 Rd3 Na6 Rh6 b8N Nd4 Nh7 Kh5 g6 Nf6 g7 Qh8 d8R Bf5 g8R Ne4 d7 Nc5 Ne2 Bg6 Qc1 Bg5 Rg1 h1R Nbc3 h2 Bh3 Be7 Rc8 Bd8 Rf1 Rg1 Bf5 h1N Ba1 Rg4 Rd2 Rh4 Na2 Nf2 Bc3 Nd1 Ba5 Rg4 Qc4 Rh4 Nec1 Rg4 Nc6 Rb8 Ne5 Rh4 Nb3 Rg4 Nac1 a2 Rff2 a1R Na2 Rc1 Qd5 Rcc3 Qc6 Rc4 Rc2 Rh4 Rfd2 f2+ Kf1 Bg5 d8N Ra4 Ne6 Bd8 Nd7 Rab4 Kg2 f1R Re8 Rf2+ Kg1 Rg2+ Kf1 f3 Ke1 Rgg4 Re7 Qf8 Rg7 Qd6 Rg8 Qh2 Rc7 Qh3 Rb7 Bc7 Rc8 Bd8 Rcc7 Ne2 Rb6 Rbf4 Rb4 Nd4 Rcb7 Rg2 Rbc4 Rgg4 Nbc1 Ne4 Rb1 Nc5 Nb3
R2B3n/6pn/b4rbB/2R1K3/kn1n2RR/1bqBR3/2r1RBn1/2N1b1QN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 c5 e4 f5 h4 g3+ Kf3 g2 h5 c4 d6 a4 h6 a3 h7 a2 b6 Kc6 d7 Kb5 d5 Ba6 d6 Qc7 d8B Nf6 d7 Nc6 b7 Rc8 b8B Ne5+ Kf2 f3 Ke3 f2 Kd4 f4 Rh3 f3 Bh6 Nf7 Ne2 g1N e5 c3 e6 c2 e7 c1N e8R Nd3 Nd2 Ne1 Rc1 a1N Ba7 Ng2 Nb3 Ka4 b5 Bb4 b6 Be1 b7 Rf8 h8R Nh7 b8R Nc2+ Ke4 Qg3 Ra8 Nb4 Rc5 Qc7 Ng3 Ne2 Re6 Nd4 Bd3 f1B Nh1 f2 Re3 Be2 Rg6 Bh5 Rg4 f1B Re2 Bc4 Nc1+ Bb3 Re3 Nd6+ Ke5 Rf6 Re8 Bg6 Rh4 Qa5 Qg4 Nf4 Qg1 Ng2 Rd5 Rc3 Rc5 Rc2 Rf3 Qb6 Rcc8 Nd5 Bf5 Ba6 Bd3 Qb4 Bc7 Nc3 d8R N4b5 Bf2 Nf5 Rdd4 Nd5 Bd8 Nbd6 Rdg4 Nd4 Rc5 Qc3 Rfh3 Nb4 Rhg3 Ne4 Re6 Neg5 Kd6 Rf5 Re2 Nf7+ Kc7 Rf4 Rge3 Nh8 Kd6 Rf6+ Ke5
qnQB1q2/3bB1b1/RbN1nR1B/B3K1NB/1R4r1/1pB4r/Rr1np3/3k4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 d4+ Kd6 g4 c5 a4 b5 a5 h5 a6 b3 a7 c4 g5 c3 f6 b2 f7 b4 g6 b3 g7 e6 Qc2 h3 Nf3 h2 Ne5 h4 Ra2 h3 Be2 Qe7 Nc6 Nf6 g8R Nfd7 Bd2 Bg7 f8B Nc5 Rf1 h1R Bh5 h2 Qc1 c2 Bc3 Rg1 Nd2 h1Q Nf3 b1N Ng5 Nd2 f3 Bf6 Bh6 Bg7 Rf8 Rg2 Rf6 Bd7 Rg1 Rh2 Rg4 Qf8 Ra6 Rh3 Ra2 Rg8 Ra6 Kc7 d6+ Kb7 Ra2 Kb6 d5 Kb5 Ke5 Qg2 f4 Kc4 f5+ Kd3 Ra6 Ke2 Rb4+ Qf3 Qg1 c1B Qg4 Kd1 Qc4 Be8 d7 Bb2 d8B Bd7 d6 Ba3 Rb7 Bb4 Rb5 Ba5 Rb4 Bb6 Ra2 Nba6 Qg4 Rc8 a8R Nb8 Qc4 Rc7 Qa6 Ra7 Qc8 Ra3 Rc2 Ra2 Ra6 Rb2 Bc7 Ba7 Ba5 Bb6 Be8 Rb1 Ra2 Rb2 Nd8 Qb7 Nc6 Qa8 Bh5+ Ke1 Kd4 e5+ Kd5 e4 Ke5 Be8 d7 e3 d8B e2 Kd4 Ne6+ Kd5 Bh8 Ke5 Rg7 Rg6 Bd7 f6 Kd1 f7 Rg8+ Rf6 Rg6 Rd4 Bg7 Rb4 Qe8 f8B Qe7 Nf3 Rg4 Ng5 Qe8 Bc5 Qf8 Bce7
B6B/7b/B2QR3/2b3rp/b2qnpk1/2n1r1NB/n1N1R1R1/KR2BrbB b - - 0 1 illegal: No possible last move
2n3B1/Bk2bK1R/1q1R1b2/r3Rn2/1n1R3p/RNR2Q1b/r1N2p1q/1nN1N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 a5 d4 h5 e5 a4 g5 h3 g6 a3 b6+ Kb7 e6 h2 d6 a2 e7 c4 e8R c3 d5 c2 b5 Qh4 g7 Nd7 Nd2 Qe1 Nb3 Nc5 d7 Nd3 d8R Rh7 d6 Be6 d7 Nb2 Be3 c1Q Bc4 Rb8 Ne2 Qcd2 Nec1 Ne7 g8R Nd3 Rg3 Nc8 Bc5 Bg8 Re5 Nb4 Be3 Rg7 Rh3 Bh7 Bg8 Ra8 Rg3 Be7 Bd4 Kb8 b7 Ra5 Ba7+ Kc7 b8R Qg1 b6+ Kc6 b7 Qb6 Rh3 Rg2 Ra8 Qb2 b8N+ Kb7 Nc6 h4 Ncd4 Bg6 Nc2 Bf7 Ne1 Be6 Rb1 a1B Rg1 Rd2 Rg7 h1N Rh7 Ng3 Qe2 Qa2 Qg2 Rc2 Rb2 Re2 Rd2 Qb2 Rd6 Qd2 Re4 Baf6 Re8 Qc2 Red4 Qcc7 Qf2 Rea2 Qe3 Qc2 Qc3 Qh2 d8N+ Ka6 Nc6 Kb7 Ne5 Bd7 Nc4 Be6 Ne3 Bd7 N1g2 Be6 Nc2 Bd7 Kf2 f3 Ke3 f2 Kf4 f1N Nge1 Nd2 Qe3 Nb1 Qf2 Bd8 Re5 Bde7 Qf3+ Nc6 Ke3 f4+ Kd3 Nf5 Kc4 R5a4+ Kd5 R4a3 Qg2 f3 Rg3 f2 Rc3 Ra4 Qf3 Ra5+ Rc5 Be8 Ke6 Bh5 Rc3 Bg4 Kf7 Bh3 Bb8 Rc5 Ra3 Ra5 Qd1 Nb4 Ba7 Bg7 Qd3 Bgf6 Qf3+
R1R5/1B1Bbq1n/1qRk4/2pBn3/rqBr1nR1/BN4nb/p5QB/K4N2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 Kd7 e4 c5 d4 h5 Kd2 a5 Kc2 f5 b4 f3 Kb2 f2 e5 h4 b6 f4 e6+ Kc6 b7 f3 e7 h3 e8B+ Nd7 b8B h2 g6 a4 g7 Kd5 b5 Ra6 g5 Ngf6 g8B+ Re6 g6 Rh5 g7 Nh7 b6 Qe7 b7 Rg5 Ne2 Rg4 Bg2 f1Q Qd2 Qe1 Rg1 h1N Ng3 Qe2 Nf1 Qe4 Bh2 f2 b8R Qf6 Ra8 Ne5 Bd7 Kd6 d5 c3+ Ka2 c2 Ba3 Re8 Qe2 Re7 Nbd2 Qb4 Nb3 Rd4 Re1 c1N+ Ka1 Qg6 Bf7 Qf6 g8B Nd3 Bf3 Qe6 Rg4 Nf4 Be4 Qh6 Qf3 Re6 Qg2 Be7 Re3 Qg6 Reg3 Qf6 Rg7 Qh6 R3g4 Ng3 Bf3 Kc7 Be4 Ra6 Bf3 Qhb6 d6+ Kd8 Bc4 Ra5 Bc1 a3 Bb7 a2 Bgd5 Ra6 Ba3 Ra4 Bf5 Ke8 d7+ Kd8 Bfe6 Kc7 d8R Bd7 Rdc8+ Kd6 Bf7 Bf5 Be8 Be6 R4g5 Bh3 Rg4 Bf6 Rgc7 Bg5 Nfd2 Be7 Bd7 f1Q+ Nc1 Qe1 Nf1 Qf2 Nb3 Qf3 Rh4 Qh5 Rg4 Qf7 Rc6+
N1qB4/1bB2RKN/1b4B1/QpB1r1k1/B4p2/5B1q/Rb3nr1/q1qnNN2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 h4 g5 a4 c4 d4 c3 h6 c2 a5 g4 d6 g3 d5 f3 d7 b6 a6 g2 h5 f2 d6 b3 a7 b2 h7 Nh6 Ra2 Qc7 d8B+ Be7 d7 Ng8 h6 Qc3 Nd2 b1Q Qe1 Na6 Ba3 Qcb2 Ngf3 g1Q Bc5 Rb8 a8B c1B+ Kf4 Qa3 e4 Qbb2 e5+ Kg6 e6 f5 Bb5 f1Q Ba4 Qbb3 Ke5 Bf8 e7 f4 e8B+ Qf7 Rh2 Qh3 Nf1 b5 Qa5 Qh1 Ne1 Nb4 Bf3 Bb7 Bc7 Rc8 d8N Nc2 Ne6 Ne3 Bd8 Ra8 Nc7 Nf6 Rhe2 Rb8 Na8 Rg8 h8N+ Kg5 h7 Qfd7 Ng6 Nd1 h8B Qc8 Ne7 Ne4 Bg6 Nef2 Nd5+ Be7 Bc7 Bd8 Nf6 Rg7 Red2 Bb2+ Rd4 Rg8 Bg7 Qc3 Bgf8 Qc1 Bfe7 Nc3 Rd7 Qg1 Bc7d6 Bb6 Bc7 Rg7 Bed8 Ncd1+ Kd6 Rg8 Ke7 Re8+ Kf7 Re5 Kg7 Qa1 Nh2 Qgf1 Re7 Qc4 Rf7 Qcc1 Nf1 Qcg4 Bf5 Rc8 B7d6 Ne4 Bg1 Rc2 Bg6 Qc8 B6c7 Rg2 Bc5 Nef2 Nh7#
b3B3/1r1bk3/q2Rpqn1/B2NB3/1NBKbr2/b3NNp1/nB1R4/1nB2Q2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 Kd3 g5 h4 d5 c4 a4 f4 e6 b4 g3 b6 a3 h5 a2 f6 g4 h6 g2 h7 g3 b7 Qd6 f7+ Kd7 f5 Qe5 b5 Kd6 b6 Bd7 f6 Ra5 c5+ Kc6 Rh2 Ra8 Nf3 g1N Nc3 Ne7 Rd2 Na6 b8B Ne2 b7 Ra7 Qe1 Rg8 h8B Ng6 Nd1 Nc3 Ne3 Nb1 Qe2 Bd6 f8N Qg5 f7 Qf6 Nh7 Rf8 Qd1 Be7 Be5 Nb4+ Ke2 Bd6 b8N+ Kc7 c6 Kd8 c7+ Ke7 c8B Rb7 Na6 d3+ Ke1 d4 Bg7 Bc6 Bd7 Be4 Be8 Bc5 Rh2 d2+ Ke2 Na3 Rb1 a1Q Qe1 Na2 Rb6 Nb1 Rd6 Ba3 Nb4 Bc6 Kd3 d1B Rd2 Bda4 Kc4 d3 Be2 Be4 Qf1 Bd7 Bh8 Qf4 Nf6 Qf5 Beb2 Qb5+ Kd4 Qa6 Rc2 d2 Bc4 d1B Rd2 B1a4 Bg7 Bac6 Bh8 Rb6 Bg7 Ba8 Nfd5+ Kd8 Be5 Rb7 Kc5 Rh8 f8B Rh4 Bfg7 Rf4 Bec3 Rb8 Kd4 Rb7 Nb6 Ke7 Bf6+ Kf8 Be5 Ke7 N6d5+ Kd8 Bf6+ Ne7 Nbc2 Bd3+ Ke5 Rc7 Ba5 Be4 Bd4 Qb2 Ncb4 Qc3 Nb6 Rb7 Bg7 Qb3 Bdb2 Ng6+ Kd4 Ke7 Kc5 Qc3 Bf6+ Kf8 Nbd5 Qe5 Bh8 Qf5 Bhe5 Qf6 Nb6 Ke7 Kd4 Rh4 Bd5 Rg4 Bc4 Rf4 N6d5+
1b1nNrB1/1BR3p1/4q1n1/2p1rB2/2B4N/NBq2QrR/5r1n/1K1b1NBk b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 fxe5 dxc4 h4 Kd7 a4 Kc6 d4 Kd5 Kd2 Ke4 Kc2 f5 d5 c5 h5 b5 e6 g3 h6 c3 e7 f4 e8B b4 h7 f3 a6 g2 d6 f2 a5 Be6 d7 Nc6 a7 Qh4 d8N Ba2 a6 Qf4 Rh3 Qe3 Bg6+ Kf4 Nf3 g1N Nh2 Bf7 Bf5 Nge7 Na3 b3+ Kb1 b2 Ne6+ Ke5 Nc7 Kf4 Ne8 Rc8 a8B Rc7 a7 Bb3 Bb7 Nd8 a8B Ng6 Bd2 Rg8 h8N Re7 Be1 Qe6 e4 Nf3 e5 Ke3 Bc4 f1R Bf2+ Kf4 Bg1 Rf2 Nf1 Nh2 Bbd5 Ba4 Bab7 c2+ Ka2 c1Q Qf3+ Kg5 Rb1 Bd1 Bb3 Qc3 Bdc4 Bc2 Rd1 b1R Rd7 Rb2+ Ka1 Bd1 Rc7 Rbd2+ Kb1 Rd3 Qe4 Rg3 Qf3 Nh4 Ng6 Rh8 Nf4 Ng6 Nf6 Re8 Ng2 Bd6 Rf7 Bb8 Rc7 Ref8 Ne8 Rh4 Ba8 Re4 Bb7 Qf7 e6 Re5 e7 Qe6 Nf6 Nh8 e8B Ng6 Nh4 Rfe2 Bf7 Rf2 Qc6 Kf4 Ne8 Qd5 Ng2+ Kf3 Qf6 Qc6 Bg8 Qd5 Bba6 Qe6 Bb7+ Qc6 Qd6 Ra2 Nge3 Rf2 Qd3 Qd5 Nec2+ Kg2 Nce3+ Kh1 Ng2 Qf7 Qf3 Qe6 Nh4+
K2nR2b/1Rb1BR2/2Bn2k1/nbn1R3/1b5r/1N3r1p/3pB2R/1qN1BQ1R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 d5 b4 e5 g4 a5 c4 h5 g5 h3 g6+ Kg7 b6 d3 b7 d4 Ke4 h2 f4 h4 c5 h3 f6+ Kh6 f5+ d2 c6 d3 b5 a4 b6 a3 c7 a2 g7 Qe7 Kd5 e4 f7 e3 f6 Qb4 Ne2 Nd7 Kc6 Bd6 b8R Ba6 c8B Bc7 f8R Kg6 f7 Nh6 b7 Nc5 Bd7 Qb2 Qe1 d1N Nd2 Qb1 Nb3 Nb2 Rbe8 Nc4 b8R Rh7 Bd2 Na5+ Kd5 Bb5 Re5 Ra7 Nec1 e2 Rb7 Rh8 Qf2 e1B Be2 Ra6 Bb4 Rf6 Qf1 Rf3 Bc6 Bc3 Rfe8 Rh7 f8B Nf7 Be7 Nd8 Rf8 Rh4 Rf7 Bd2 Ba3 Bb4 g8R+ Kh6 Re8 Kg6 Bb2 d2 Bd4 Qb2 Rb1 a1B Bf2 Qa2 Be1 Bac3 Rh5 Bh8 Ra1 Qb1 Rhf5 Bf4 Re5 Bg3 Kd6 Bf4 Kc7 Bg3 Rg1 h1N Kb8 Nf2 Rh1 Nfe4 Rh2 Nd6 Ka8 Ndc4 Rh5 Bc7 Re5 Nd6 Ra4 Ba3 Raf4 Bb4 Rh1 Rc3 Rf2 Rf3 Rfh2
B1b1r1R1/1R3K1B/2Q3N1/B2RppR1/k3b1rb/r4nn1/4N2p/BRR2q1n b - - 0 1 illegal: No proof kernel
2n1RR1K/R5R1/p1q1p3/N2R2bp/1BbQ2rB/2br4/r3Bn1n/1BN3kR b - - 0 1 illegal: No possible last move
k2R2B1/1n2np2/pnR3r1/3q1b2/b3Q2r/2pBB3/1B1b1BBR/1rN1N1KR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 c5 d4 Kc7 e4 Kb7 g4 h5 g5 f3 b6 a6 e5 c4 b5 c3 g6 h3 g7 h2 d6 h4 e6 h3 e7 Bf5 e8B Bd7 d5 Rh4 Qd3 Bc6 d7 Rf4 d6 Nh6 g8B Nf5 Qe4 Qc8 d8B Ne7 d7 Bg7 Nd2 Bh6 Nb3 Rh4 Ra2 Bd2 Bg2 Qc7 Rc2 Qe5 Bb2 Qd5 Kf1 f2 Nc1 Qg5 Bc7 Qd5 d8R Nd7 Nf3 Nc5 Ne1 Rc8 Bd7 Ka8 Bg3 Nb7 Bf5 Bd7 Bg6 Bf5 Rd6 Rd8 Rc6 Rd6 Bf4 Rf6 Be3 Re6 Bh5 Rg6 Be2 Nd6 Bd3 Nb7 Ke2 f1N Kf3 Ng3 Kf2 Nh5 Kf1 Nf6 Kf2 Nd6 Kf1 Nd7 b7+ Kb8 Bf2 Nb6 Be3 Ka7 b8B+ Ka8 Ba7 Nb7 Bf2 Nc4 Bac5 Nb6 Bce3 Nbc8 Rg1 h1B b6 h2 Bh3 Bf3 Bg2 Bd1 Rh1 Nc5 Rg1 h1R b7+ Ka7 b8R Nb6 Rd8 Nb7 Rd7 Ka8 Rdd6 R1h3 Rh1 Rhg3 Kg1 R3g4 Qe5 Rb4 Qe4 Rb5 Ba1 Rb1 Bb2 Qd4 Rd7 Qd5 Rd8+ Bc8 Bg3 Qa5 Bg5 Qd5 Bh3 Bf4 Rch2 Bd2 Bf2 Bc2 Bg2 Ba4 Rdd6 Bg4 Bge3 Bf5 Rd8+
knqRB3/8/1rR1bNB1/nb1B4/Bp1BRp2/1qR1Q3/n2Np2K/b1r2B2 b - - 0 1 illegal: No proof kernel
BRq1n2B/BqN4K/8/R1b1p3/2B1rp1b/1RqRBB2/pNb1nQ2/2r4k b - - 0 1 illegal: No proof kernel
1b2q1BB/1r2p1N1/N1pk4/B4QBp/nnb1NR1K/q3B1B1/2Rn1N2/r1q5 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 b4 a5 f4 h5 Kf2 c6 d4 h3 Kg3 h2 f5 a4 d6 a3 d5 a2 f6 e3 f7 e2 b6 e1N g5 Ra6 g6 Qe8 g7 Rh6 b5 Ng2 b7 Ra3+ Qf3 Rb3 b6 Rd3 Nd2 Nf6 g8N Rb3 Nh3 Ng4 Bc4 Ne1 Ne4 Nc2 Rf1 h1Q Ngf6+ Kd8 d7 Rb4 Qf5 Rh7 Rf4 Na6 b8N Qh2+ Kh4 Qd2 b7 Kc7 Nhf2 Bh6 f8B Nh2 Bg7 Nf1 Bh8 Rg7 Rb1 a1Q Rb2 Rg1 d6+ Kb6 Be6 Nc5 Na6 Qa3 b8B Na4 d8B+ Kb7 Bd5 Be6 d7 Bg8 Bb3 Bc4 Bb6 Qe3 d8B Nd2 Ra2 Rb5 B6a7 Nb4 Ba5 Qc3 Be3 Qcb2 Rg4 Bf4 Bd6 Qa1 Rc2 Bh2 Bdf4 Rd1 Bg5 Bb8 Rf4 Re1 Bb2 Qc1 Be5 Rd1 Nd7 Rb6 Nf8 Rf1 Ne6 Kc8 Rf3 Kd7 Bg3 Rb7 Rf4 Rd1 Nf6+ Kd6 Ng7 Qcb2 Ba2 Ra1 Bb3 Qc1 Ba2 Be2 Bg8 Bc4 N6e4+
B1N1nn1K/1B1N2p1/pr5B/3kNbB1/qr1b1B2/3p3Q/3br3/R2RrNB1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 d5 c4 e5 b4 g3 f4 a6 h4 g2 c5 Ke7 f6+ Ke6 c6 Nh6 c7 Ra7 f5+ Kd6 h5 Bb7 c8B Rg8 f7 Qb6 f6 Nf5 h6 Nc6 h7 Nfe7 h8N Nf5 Nd2 Nh4 Ng6 Qc5 b6 Nb8 b5 Bc6 b7 Rh8 b6 Ra8 Qh5 Qb4 Ne2 g1R Bg2 Bd7 Ne7 Re1 Nf1 Nf5 Bh6 Qa4 Qh3 Ra7 Bg5 Rh4 Be4 Be6 Rg1 Nd7 b8B+ Kc5 Bb7 Nd6 Nc8 Bf5 Rd1 Be7 f8N Ne8 f7 Bf6 Bh6 Ra8 Ba7 Rb8 Ba8 Rg4 b7+ Kc6 Nh7 Rg2 f8B Rg6 Bb4 Nf8 Bbd2 Rg2 Bdg5 Rg4 Kd2 d3 Ke3 d2 Ra1 d1R Bb6 Be7 Nf6 Rd2 Nd7 Bf6 Bh1 e4 Bg2 Rg3+ Kf4 d4 Bc5 d3 Nd4+ Kd5 Nc6 Bc3 Rh1 Rb2 Bg1 Rge3 Rd1 Bd4 Ra1 Bg6 Kg4 Bf5+ Kh5 Rb6 Rd1 Nh7 Bf3 R3e2 Ra1 Bg4+ Kg6 Bf5+ Kf7 Nf8 Kg8 Reb2 Kh8 R2b4 Bh5 e3 Rd1 e2 Bf3+ Ke6 N8a7 Rc8 b8B Rd8 Bbf4 Rc8 Ne7 Rc2 Bfb7 Ra2 Nec6 Kd5 Rd2 Rc1 Rd1 e1B Nc8 Re2 Bb8 Rcb1 Bbf4 Bd2 Rc1 Ne6 Bf2 Re4 Nh2 B4c3 Rhf1 Ra1 Bg1 Re2 Rfe1 Bd4 Nf1 Nf8 Rb1 Ra3 Rbc1 Rc3 Ra1 Rc1 Rd1 B2c3 Rd2 Rce1 Rdd1 Bd2 Nce5+
n3N3/1r1Q1K1N/pp3Rn1/3B2bb/p2N2B1/pkr1BB2/N5b1/BBR2rq1 b - - 0 1 illegal: Other
1B1Bb1k1/n1r3Br/4n3/b2Kb3/2n1rrN1/3BBBbQ/2BBpq2/4NR1R b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Kc3 e5 Kc4 a5 b4 g5 f4 e3 h4 e4 h5 d5+ Kd4 a4 c4 g3 h6 g4 c6 g2 c5 e2 b6 e1R b5 e3 f5 a3 h7 g3 c7 a2 b7 Qh4+ Qg4 Nf6 b6 Ne4 f6 Ng5 c6 Ra7 Bd2 Bd7 c8B Bb4 c7 Be8 Bf5 Ba5 Nh3 g1R c8B g2 Bc2 Qf2 Bfd3 Rgf1 Na3 g1B Bd7 Re2 Bc6 Bh2 Kc5 d4 Bf3 Kf8 f7 Nc6 b8B Bg3 b7 Ne6+ Kd5 Ree1 Rd1 a1B Bf4 Re2 b8B Rc7 Bg5 Na7 Bd8 Ree1 Qh4 Kg7 f8B+ Kf7 Bb5 d3 Bh6 Bae5 Bf4 e2 Rc1 Rd1 Bfe3 Kf8 Ra1 Rb1 Ba6 Rb4 Rc1 Re4 Bc4 Rg8 h8B Rgg7 Rd1 Rh7 Bg7+ Kg8 Re1 Qg2 Nf2 Qh2 Ng4 Qf2 Bb4 d2 B4d3 d1N Qh3 Nb2 Bbd2 Nc4 Rc1 Rg1 Rf1 Rf4 Ba4 Re4 Nc2 Rg2 Ne1 Rh2 Qg2 R2h4 Qh3 Rf4 Bac2 Re4 Nh2 Rhf4 Ng4
BRqN4/1B1nn2b/5n2/1bp5/2rrQNkp/2B2R1r/1B1pBBK1/2b1B1B1 b - - 0 1 illegal: No proof kernel
1b4N1/1NB3Rb/3q1N1R/1Q2rBK1/2b3N1/3qB3/Rbq2p2/RB1q1k1r b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 f4 e5 h4 gxh4 c4 exf4 cxd5 Bb7 b6 Bc6 b5 Na6 b7 Ne7 Rxa6 Bd7 b6 Nc6 Ra3 Na5 Rxa5 Bg4 Ra1 Bc8 Kf2 Kd7 Kf3 Kd6 b8B Ke5 g4 Kd4 e4 f5 g5 c5 d3 h5 e5 a5 d6 c4 d7 a4 b7 a3 g6 h3 g7 h2 g8N h4 e6 h3 e7 a2 e8B c3 Nd2 c2 Qe1 Ra5 Ne4 Bd6 Bg6 Re5 Qe2 Qb6 d8N Be6 Bc7 Bc4 Bd2 c1Q b8R Qc2 Nef6 Rh6 Rb7 Qb4 Ba5 Bb8 Rg7 Qd6 Bc7 Rh5 Be3+ Kc3 Rc1 a1B d4 Bb2 d5 Rh6 Nb7 Rh7 Kf2 f3 Kg3 f4+ Kg4 f2 Bf5 f3 Kg5 Rh6 Bg2 f1Q Ra1 f2 Nf3 Qfd1 Ra2 Qdd3 Rha1 h1Q Nh2 Qhd1 Nhg4 h2 Be4 h1B Qf1 Bg2 Qe2 Rh1 Qf1 Qc5 d6 Bh3 d7 Qcd6 d8R Bg2 Beb6 Kd2 Rdd7 Bh3 Rh7 Bg2 Rdg7 Bf3 Rh6 Be2 Qg2 Ke1 Be3 Bf3 Qh2 Kf1 Qh5 Bg2 Bc6 Bgd5 Qe8 Bf7 Be4 Bg6 Qb5 Be6 Bd5 Bh7 Bb3 Bc4 Ba4 Qce2 Bc2 Qed2 Bb1 Q2c3 Qd7 Qcc2 Qb5
nR5K/N4QBN/1RR1N2R/n1r2brr/1r1B1bBB/5b1k/5r1N/2bq4 b - - 0 1 illegal: No possible last move
qq1BNNR1/8/4kn1n/1Q6/rnNbrn2/N3B3/1B1B1RRn/R3n1Kn b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 Kf2 Kd7 h4 c5 d4 g5 e4 a5 b4 c4 b6 c3 d6 a4 b7 a3 b5 a2 d5 c2 e5 Ra3 f6 Bg7 h5 Ra4 f7 Nh6 b6 Re8 Bd2 c1N Qb3 g3+ Kf1 g4 Rh2 f2 Na3 Qc8 Nf3 Nd3 Rg2 Nb4 Be3 Re7 Nd2 Re6 Ndc4 Bf6 Ke2 f1N Ke1 f3 f8N+ Kd8 d7 Ke7 d8R f2+ Ke2 Nd7 b8B Nh2 b7 f1N d6+ Kf7 Bc7 Qb8 Ba5 Re7 Rf2 g2 Qb2 g3 e6+ Kg8 Qe5 g1N+ Ke1 g2 Qb5 Re8 e7 Bd4 Rc8 Nf6 d7 Kf7 d8B Nh3 Rc6 Qa8 b8R g1N Rc5 Nf4 Rg5 Qb7 Rgg2 Ng3 Rc8 Nh1 Ra8 Nhg8 h6 Qb8 h7 Nh6 h8B Ngf3+ Kd1 Ng6 Ke2 Ne1 Bg7 Nbc2 Bad2 Nb4 Rd1 a1Q Rb1 Nhf3 Kf1 Nh2+ Kg1 Qa2 Ra1 Nf4 Ng6 Ke6 Bh8 Rf8 e8N Rf7 Bg7 Re7 Nf8+ Kf7 Nb6 Qd5 Nbc4 Re4 Ra5 Qda8 Ra6 Nh7 Rag6 Nf6 R6g3 Nf5 Bh8 Nh6 Rg8 Nfg4 Ne6 Bc3 Bhd4 Nf6 Nf8 Bb2 Bc1 Bc3 Bed2 Bb2 B4e3 Bd4 Bb6 Ke7 Bb2 Kf7 Ba5 Ke7 Bd8+ Kf7 Nh7 Ke6 Nf8+
K2n2B1/3B2q1/1R1N1p1b/2NNR1k1/R6b/2qB2br/n1Q1r3/b3NBRb b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 Ke7 e4 Qe8 b3 Kd7 Ba3 Qd8 Bc5 Ke8 Be3 fxe3 Ke2 Ke7 Kd3 c5 Kc4 h5 d4 a5 g4 e2 b4 e1B d6+ Ke6 g6 Kf6 Kd5 c4 g5+ Kg7 e5 a4 d7 f6 e6 a3 e7 c3 e8B c2 b6 c1B b7 a2 b5 h4 b6 h3 Qc2 h2 Nf3 Bfb4 Rg1 h1Q Nc3 Qc7 d8N Ra7 Bd7 Qh7 Nf7 Bb2 Nd6 Bd2 Ne1 Nc6 b8R Ba6 b7 Be2 Re8 Ra3 b8R Nh6 Rb6 Nf7 Re5 Bh5 Bd3 Re8 Bf1 Ba5 Kc5 Bdc1 d5 Bf3 Kb5 Qh8 Ka6 Nfd8 Bd3 Bh1 Bf1 Kg8 g7 Bf4 Bd3 Bg3 Bf1 Bc1 Bd3 Nb7 Bf1 Nb4+ Ka7 Nd8+ Ka8 Qh7 Bd3 Qg6 Bf1 Kh7 g8B+ Kg7 Bh7 Qf7 g6 Kh6 g7 Qe7 g8B Qg7 Ne2 Qc3 Bd3 Bg5 Nf4 B5h4 Ne4 Re6 d6 Rb3 Nd5 Ra3 Rc1 a1B Nc5 Na2 Rcb1 Re7 R1b4 Re6 Ra4 Re7 Rf5 Re2 Re5 Rb3 B7f5 Kg5 d7 Nc6 d8N Bb4 Nd7 Bf8 Nb7 Nd8 Ndc5 Qe7 Nd6 Bh6 Bb5 Qg7 Bbd7 Rh2 B1d3 Rb2 Bf1 Rh3 Qe4 Rd2 Qc2 Re2 Bd3+
bB1n1Nr1/N7/RqR1p1nB/1q5n/n1Nrk1B1/Q1R5/1qN1b3/4BRK1 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 g6 Be6 g5 Bg7 c3 Bd4 cxd4 Bg4 f3 Bxf3 d5 Bg4 Rh2 Bd7 Rh1 Bc8 Kf2 Kd7 d4 Kd6 b4 a5 b6 h5 g7 c5 b7 e6 b5 a4 b6 a3 g6 h4 Qc2 h3 Qd3 h2 Bh3 c4 Nf3 a2 Na3 c3 Rf1 h1N+ Kg1 c2 Ne1 f3 Bg4 Ra4 Bh6 c1N Nec2 Nc6 b8N e3 b7 e2 Nd7 e1Q Nf8 Nge7 g8R Qea5 g7 Nb3 b8B+ Qdc7 Rac1 a1Q Qa6 Ng6 Nc4+ Ke7 d6+ Kf6 d7 Bb7 d8N Qb5 d5 Qb2 d6 Ng3 d7 Nh5 Qa5 Nc5 Qb4 Qca5 Qa3 Ba8 Ra1 Qab6 Rac1 Na5 Nc6 Nab7 Na7 Nd8 Ra1 Rh7 Rh8 Rb4 g8R Rg7 Rh7 Ra4 Rgh8 Rg8 Re7 Nc6 d8B f2+ Kh1 Rb4 Bdc7 Na4 Bg3 Nd8+ Rb7 Nc6 Rc7 Nd8+ Rc6 Q2e5 Rfd1 f1B Be1 Qb2 Rh7 Be2 Rc7 Qb7 Kg1 Q7b6+ N4e3 Rd4 Nc4 Q5b3 Rdc1 Q6b5 Ra6 Qb6 Rc6 Q3b5 Bf3 Kf5 Bg4+ Ke4 Rab1 Qc3 Rb3 Qa1 Rc3 Qa2 Bf2 Qa1 Rf1 Qab2 Be1
2R2nq1/R1N4q/b1NK1p2/rr1BB1Q1/1n1B4/5q1n/NN2R1pq/1kRB4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Ke7 Kd2 Kd6 Ke3 a5 Ke4 c5 b4 h5 g6 a4 b6 h4 b7 a3 b5 c4 b6 h3 g7 g2 Bb2 h2 Qc1 a2 Nc3 f6 Nh3 g1Q Qg5 g3 Nf4 g2 Nd3 Ne7 g8B Nbc6 b8N Ng6 b7 Bd7 Na6 Nge5 Nc7 Ra4 b8B Nb4 e3 Ra8 Be2 Rh5 Bd1 Bb5 Kf5 Qe7 e4 Nd7 Bf7 Nf8 e5+ Kd7 e6+ Kd6 Rc1 a1Q Na2 c3 Bg8 Qe8 e7 c2 Be6 Qc8 e8R Qb1 Bc3 Bc4 Nb2 Ba6 Re7 Qe3 Re1 h1N Re2 Nf2 Rg7 Qd8 Rh7 Nh3 Bf7 Kd7 d6 Kc6 d5+ Kc5 d7 Qg3 d6 Qh2 Bd5 Qe8 Bd2 Kd4 d8R Qe3 d7 Qf3+ Bf4 Ra7 Rc8 Ra8 Na4 Kd3 Ba7 Rb8 d8N Rb5 Bd4 Qb3 Rb1 c1Q Nc6 Qc5 Rd7 Qe7 Rc1 Qg7 Rde7 Qg8 Rh7 Qc2 Rf7 Nd7 Ke6 Nf8+ Kd6 Qb1 Re3+ Kd2 Bfe5 Qbh7 Nb2 Ra5 Ne6 Rb5 Ra7 Ra5 Be2 Rb5 Nc7 Ra5 Rg1 Kc2 Bd1+ Kb1 Re2 Ka1 Qf5 Rh6 B5b3 Qh5 Bg3 Qf3 Bdc2+ Qf1 Bf7 Rh4 Ba4 Rf4 Qg5 Rff5 Rh1 Rfb5 Bd5 Kb1 Bge5 Qg3 Rc2 Qd1 Re1 Qf3 Ree2 Qh1 Rc5 Qg1 Bd1 Qh2 Rc1#
1NnB4/1r6/R1r5/N1n5/rQBkB1RK/1R4N1/NqbbB1R1/1b1bbbq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 a5 d6 h5 d7 f5 d3 c5 b6 c4 b5 c3 b7 f3 b6 f4 g5 c2 g6 h3 g7 h2 Be2 a4 Qf1 h4 Be3 c1B Qe1 a3 Nc3 h3 Na2 Ra7 Qb4 Ne7 g8B Na6 b8N Rh6 b7 Nc5 Bc4 Qb6 d8R Rc6 Rd4 Bg4 Bd2 Nc8 Be3 Kf6 e5+ Kf5 e6 Ke5 e7 Bd2 e8B Bd6 Qc3 Qb2 Qb4 Bc7 Bg6 Ba5 Be4 Bh5 Na6 Bg6 b8R Rb7 Ra8 Bf5 Rb1 Bh7 Nb8 Be1+ Kf1 f2 Ra6 Bf5 Qb6 Bad2 Qb4 Qc3 Rb3 Qb2 Rd8 Bg4 Rg8 Bf5 Rg4 Bh7 Nc3 a2 Rg2 a1R Na2 Ne6 Ba7 Nc5 Bb6 Kd4 Bd8 Bf5 Bd1 Bh7 Ke2 f1B+ Kf3 Bg6 Kg4 f3 Be2 f2 Kh4 Bf5 B2f3 Be2 Rg4 Bd1 Ne2+ Ke3 Rhg1 h1Q Ng3 f1B Rg2 h2 Be2 Qg1 d4+ Bc3 d5 h1B d6 Kd4 d7 Bcd2 Nc3 Ra4 Na2 Bg6 Bc7 Bf5 d8N Bh7 Nf7 Bc2 Bd8 Bb1 Nd6 Bf5 Rf2 Bf3 Rg2 Bg6 B2d3 Bd1 Be2 Ra7 Nb7 Bbc2 Na5 Rb7 Bed5+ Bge4 Rg8 Bed3 Be4 Bb1 Rg5 B3c2 Rg4
k4N2/nRN2qB1/B1NR4/R1rq1Nq1/1KQ1nBq1/4r1b1/4rr2/R2B1br1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 e4 c5 d4 Kc7 Kd2 Kb7 Kc3 h5 g4 f5 b6 a5 g5 a4 d6 a3 g6 h3 d7 c4 d5 f3 e5 a2 b5 h4 e6 f4 d6 h2 g7 h3 e7 f2 e8N f3 Nf6 Nc6 Qd4 Na7 Nh7 Qg5 d8R Nf6 g8B Ne4+ Kb4 c3 Bf4 c2 Ne2 c1R Na3 Rc5 d7 Bd6 Bb3 Re8 Ng3 Bc7 Be2 f1Q Nf5 f2 Qc4 Re7 Rg1 h1R Bbd1 h2 Nf8 Qh3 Be5 f1R Bg7 Qhg4 Rg3 Kb8 b7 Rhg1 Rh3 h1Q Rh5 Bg3 Bd3 Kc7 b8B+ Kb7 b6 Rf2 Bf4 Rb8 Nb5 Ka8 Bf1 Ba6 Bd3 Qhf3 B3e2 Qd3 Bf1 Rbc8 Bfe2 Qd5 Nc7+ Kb8 b7 Bb5 Rb1 a1Q Bf1 Qaf6 Ra1 Qff7 Bd3 Ba6 B3e2 Nb5 Bd3 Ka7 b8R Re8 Rb6 Ra8 Rd6 Kb7 Rc8 Na7 Rd8 Re7 Re8 Re6 Re7 Re8 d8N+ Kb8 Nc6+ Kb7 Nb5+ Ka8 Red7 Nd2 Rb7 Re3 Ra5 Ne4 Rh2 Rff3 Rha2 Rf2 Ra1 Ref3 Qc2 Nc3 Rh6 Ree1 Rd6 Ne4 Nbd4 Bc4 Nde6 Rfe3 Qe2 Bb3 Ba6 Bc4 Qa2 Bf1 Qc4 R1e2 Nc7+
b1nN4/Bq2b1BK/2rr3R/1R2n1NQ/B1Bq3k/2qNb3/R1Nn2q1/1b2R3 b - - 0 1 illegal: No possible last move, all moves rejected
2bbrb1K/N2B4/2R5/r1BN1QnB/1R3n1r/N2nqR2/k2B1qNn/2r4R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 b7 c2 d6 Kb3 Qd5+ Kb4 Ne2 h2 Na3 h3 Nf4 a4 Bb5 f1Q Ng2 Nh6 g8N f4 Ne7 f3 Kf6 f2 e5 Qc7 d8R Nc6 b8N Nd4 e6 Qc3 d7 Nf7 Bd2 c1R Qf5 Kb3 Nd5 Qe3 e7 Ne2 e8B Ra5 Nc6 Nf4 Na7 Ng5 Bh5 Qg1 Rb1 Ka2 b4 f1N Rb3 Qgf2 Re8 Rg8 d8B Rh8 Be7 Rg8 Nc2 a3 Bd7 Rh8 b5 Rg8 Rg1 h1R b6 Nh2 b7 Rh8 Rd1 Re1 b8R Rh7 Bg4 Rh4 Bc5 Qd4+ Qe5 Qf1 Bgf5 Nhf3 Nc7 h2 Bg4 h1N Bcb4 Nh2 Nd5 Nf2 Rf3 Kb2 Bh5 a2 Re6 a1B Bc5+ Ka2 Na3 N2d3 Rb4 Qff2 Rc6 Re4 Rh1 Qde3 Bd4 Bc3 Qf5 Re5 Bc5 Bd4 Be7 Bb6 Bd6 Re8 Bc5 Nh7+ Kf7 Ng5+ Kg8 Bd8 Kh8
3Rr3/bRb1b2K/b1B2k1R/1Nq1Rn1r/2N5/4r1r1/Bn3nBN/BN2Qn2 b - - 0 1 illegal: No possible last move
b1b4B/bRn1qBN1/4r2r/N4RB1/KRQr4/B1Rb1n2/3N1n2/N2kr2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 g4 f5 e4 c5 b6 c4+ Ka4 c3 b4 h3 g5 f3 b7 f2 g6 c2 b5 h4 g7 f4 b6 h2 Qe2 h3 Nd2 f3 Nb3 Qf6 Qc4 Na6 b8N Rh6 b7 Nc7 Rb1 Qe7 Na1 Nf6 g8R Ra6 Rg5 Ng4 Rb4 Rb6 Be2 f1B Nc6 f2 Ba3 c1R b8R Rd1 Rf5 Ra6 Bf3 Bd3 R8b7 f1N Bg2 Nd2 Nf3 Nf2 e5+ Kd7 e6+ Kd6 Re1 h1B Re3 h2 Bh3 Bg2 Bg4 h1N Bh5 Bg7 Bf7 Bh8 Nh2 Nf3 Nf1 Be5 Nd2 Bh2 Qb5 Bg1 Qc4 Be4 Reb3 Bd3 Rc3 Na8 Kb5 a4 Na5 Rc6 Bb2 a3 Ka4 a2 Ba3 Qf8 e7 Nc7 Nc2 a1R e8N+ Kd7 d6 Qe7 d5 Re1 Ne4 Rad1 Nd2 Be4 Ng7 Nh4 Rb8 Nd3 Nf3 Ba7 Qd4 Ndf2 Na1 Rd2 Qc5 Rd4 Qb5 Bd3 Nd2 Bge4 Rb6 Nf3 Qa6 Kd8 d7 Rce6 Rb8 Qc5 Rb5 Ke7 d8B+ Kd7 Bg5 Qe7 d6 Bc6 Nh5 Ba8 Rb7 Ref6 Be8+ Ke6 Qb5 Rfg6 d7 Kd6 Ng7 Rf6 Rf4 Rfe6 Qc6+ Ke5 Bf7 Rc4 Rf5+ Kd4 Rf4+ Ke3 Rf5+ Rf4 Qc4 Ke2 d8B Qd6 Bdf6 Qe7 Nh5 Kd1 Bh8 Rd4 Ng7
2N3B1/5q2/1RRqQb2/b1nNBB2/Rbb2B1r/3k3N/2nN1p1K/1n3brR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 Kg2 Ke5 b4 Ke4 d4 c5 d6 f5 b6 h5 d7 a5 b7 a4 g5 h3+ Kf2 f3 Kg3 h2 d5 f4+ Kh3 h4 d6 a3 b5 c4 g6 c3 b6 c2 g7 a2 Qe1 Nf6 g8B Nc6 b8R Ba6 b7 Nb4 e3 Qc7 d8R Nfd5 d7 Nc3 Rdc8 Ra7 d8N f2 Be2 Qf7 Bg4 Bc4 Ne6 Ra5 Nc7 Rg5 Bd2 c1B Nd5 Nc2 Rc6 Rh6 Bd7 Bca3 Bc8 Rg2 Bc1 f1B Bb2 f3 Nd2+ Kd3 e4 f2 e5 Nb1 Bg4 Be2 e6 Bfe7 Bd4 Bf6 e7 Bb4 e8N Rh8 Bf3 Rh6 Nd6 Bd8 Bf6 Bda5 Nc8 Rg7 Bg5 Rhh7 Kg2 h3+ Kg3 Rh4 Bg4 Qd7 Bh6 Bf1 Qe8 Qd6+ Bf4 Rh8 Qe6 Rh5 Ngf3 Rh6 Rg1 h1Q Be5 Rh4 Qh6 Rg6 Ng5 Qf3+ Kh2 Qf7 Kh1 h2 Nh3 Be2 Kg2 h1N Kh2 Ng3 Bf5+ Ne4 Rh1 Rg1 Qe6 Bf1 Ra8 Qdd7 Raa6 Qc7 Bf4 Qd6 Rab6 Nc3 Rb1 a1B Rb3 Bb2 Ra3 Ba1 Ra4 Nb1 Qe7 Bf6 Qe6 Qd8 b8B Qdd7 Bbe5 Qd6 Bg4 Nc5 Bf5+
1rN3R1/1np2q1B/1b1Qb1b1/1R1RB1rN/1N1r4/k1b3B1/1qN2B1n/2R3Kb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 f5 e4 a5 g4 h5 e5+ Kd7 e6+ Kd6 g5 a4 b6 f3 e7 h3 b7 h4 g6 a3 b5 f4 b6 h2 g7 h3 Ne2 a2 Bb2 Rh5 Ng3 Rg5 Na3 Nd7 b8N Nh6 g8R Nc5 b7 Qd7 Nc2 Qb5 Bd3 Be6 Rc1 a1B Nc6 Rb8 N6b4 Ng4+ Kf1 f2 Nh5 Qb6 Bh7 Bg7 Rg1 h1R Bc3 h2 e8N+ Ke7 Be1 Bc3 d6+ Kd7 d5 Bgd4 Na6 Qb2 Nab4 Na4 Qd3 Bb6 Rd1 Nc5 Qa6 Kd8 d7 Ke7 d8B+ Kd7 Nef6+ Kd6 Nd7 Qa3 Bf6 Qb2 Kg2 f1B+ Kf3 Re5 Bf2 Bd3 Kg2 Rg5 Bg7 Bg6 Be5+ Ke7 Bg3 f3+ Kf1 f2 Kg2 Re8 b8R Nb7 Rd4 Rf8 Rc1 Rd1 Rd3 Rd2 Kf1 h1B d6+ Kf7 Rd5 Rd4 Ndf6 Rc8 d7 Ke7 Ne4 Rf8 Nd6 Nh2+ Ke2 Rc8 d8B+ Kd7 Ke3 f1Q Bdf6 Qc4 Kf2 Rf8 Kg1 Qca2 Nd3 Kc6 Nc8 Re8 Be7 Rd8 Qa3 Re8 Bc5 Kb5 Ndb4 Kc4 Qa6+ Kb3 Qd3 Rd8 Ra8 Rf8 Ra5 Rd8 Rb5 Ka4 Na7 Rb8 Nc8 Qc4 Na1 Ka3 Qd2 Rdg4 Bf2 Qf4 Qd4 Qf7 Qc5 Rf4 Qd6 Rd4 Nac2+
q4B2/2bn3k/1B3NN1/r2R1BK1/R1qb2N1/NQ1bB1n1/Rnq1r1p1/4Rq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 Kf7 d4 Kg6 e5 c4 h5+ Kh7 d6 g5 d7 c3 e6 f3 Ke3 g3 b6 a4 d5 f2 e7 c2 e8N g2 h6 a3 b7 g4 Kf4 g3 b5 a2 d6 Ra7 b6 Nf6 Bd3 f1Q+ Nf3 g1Q Kg5 g2 Ne5 Qgf2 Be3 c1N Na3 Ra5 Qb3 Qc2 Ng4 Qfe2 Be4 Nd3 Rhe1 Nb2 Bd3 Be7 Be4 Qec4 Bd3 Qdc7 d8B Q7c6 d7 Bd6 Bc7 Be5 d8R Nh5 Rd5 Nd7 b8B Ba6 b7 Ng3 Bcb6 Bc7 B8a7 Rf8 b8R Qa8 Bec5 Rf6 Bf8 Re6 Rd8 Re2 Nef6+ Kh8 h7 f4 Be3 f3 Bf5 f2 Bab6 f1Q Re8 Bb5 Re4 Ba6 Bd6 Kg7 h8N Bb5 Ng6 Ba6 Rad1 a1B R1d2 Bb5 Ng8 Kh7 Bf8 Qcc6 Ra4 Bd3 Rd6 Q6c4 Rd5 Nd1 Qb1 Bd4 Qb3 Q2c3 Rb2 Qc2 Ra2 Nb2 N8f6+
R1q1N1q1/2q4k/R6n/Q3nB2/1pB3rB/qrR3b1/N3rN1R/bb3KBN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 Kg7 g4 c5 f4 e5 a5 b5 g5 h5 a6 e4 d6 c4 d5 e3 f6+ Kg6 a7 e2 f7 b3 d7 h3 d6 h2 f5+ Kh7 g6+ Kg7 Be3 b4 Ra6 b2 Qa4 h4 Nc3 h3 Na2 c3 Qa5 Rh4 f6+ Kh8 g7+ Kh7 Bd4 Ne7 g8N c2 Nh6 Rg4 Nf5 Ng8 Ng3 Qc7 d8N Bf5 d7 Nc6 Nb7 Re8 a8B Bg7 d8B Ne5 f8R Nh6 f7 b1R+ Kf2 c1Q Nd6 Bg6 Be4 Qa3 Bf5 Rb3 Bh4 e1B+ Ke2 Re6 Rc8 Bf6 f8R Re8 Nge4 Bg3 Nf2 Re6 Ne8 Re7 Bd7 Bb1 Ke1 Bg7 Bc4 Bh8 Ne2 Re6 Rg1 h1Q Kf1 Qa8 Rg2 h2 Rf3 Qab7 Rca8 Qbc8 Rc3 h1Q+ Rg1 Qf3 Rh1 Qf7 Rh2 Qg8 Ba7 Bf4 Ng3 Re7 Ngh1 Bg3 Rc6 Nef7 Bd4 Re2 Rca6 Ne5 Bf5+ Qg6 Ne4 Nef7 Rf3 Bg7 Bc5 Ba1 Rc3 Ne5 Bd4 Rbb2 Bg1 Rb3 Bd7 Qg7 Nef2 Qg8 Bf5+
1K2b2R/4r1rb/R5nq/b1n2kBN/n2BR1NB/2pN2R1/3Qnnb1/1B4N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 c5 b4 a5 d4 a4 e4 f3 g4 h3 g5 h4 g6 a3 b6 h2 b5 f2 d6 c4 g7 h3 b7 a2 d5 c3 b6 f4 Qd2 f3 Bd3 f1B Na3 f2 Nc4 Qh4 Ne3 Qd8 Bb1 Rh7 Ng4 Na6 b8R Ne7 g8R Be2 b7 f1B Ba3 Bb5 Bc5 Qc7 Bd4 Ra7 Ra8 Bg2 b8N+ Kd8 Rh8 Qc6 d7 Nc5 Na6 Qh6 Nb4 Rg7 Nd3 Na4 Rb8 Bc6 Rb4 Ng6+ Ke6 Kc7 e5 Bd6 Rc4 Bb4 Rg8 Bb7 d8B+ Kc8 d6 Ba5 Rb4 Be8 Bh4 Bbe4 d7+ Kc7 d8B+ Kc8 Kd6 Rae7 Ne2 Bf5 Rg1 h1N e6 h2 Rh8 Nf2 Bg5 h1N Rc4+ Rc7 e7 Ng3 Rb4 Be6 Rc4 Bg8 Rb4 Bh7 Rc4 Bec6 e8N Rce7 Rb4 Bb5 Nef6 Bd7 Nh5 Be8 Nef4 Ne2 Nh3 Ra7 Bh4 Rac7 Bdg5 Rce7 Re1 Kd8 Ng1 Kc8 Rb6 Kd8 Ra6 Kc8 Bc2 Kd8 Rac1 a1N Bb1 Nb3 Rc2 Nbc5 Ra2 Nef4 Re4 Ne2 Rb2 Nd7 Kc6 Kc8 Rb4 Kd8 Kb7 Ndc5+ Kb8 Kd7 Ra7+ Kd6 Re3 Kd5 Rg3 Ke6 Ra6+ Kf5 Bdf6 Nb6 Re4 Nba4 Bd4
q4R1B/nn2k1BB/n2n3B/1Qp1R3/rr2N2R/2rbNNr1/3b1b1K/R3N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 c5 Kg2 f3+ Kh2 f4 e4 f2 e5 h3 e6 h4 g5 f3 b6 a4 b5 a3 b7 a2 b6 Rh7 e7 Kd7 e8N Rg7 d6 Ne7 d5 Ra4 g6 Na6 b8B Nc6 b7 Na7 Bd3 f1R Qb3 f2 Bh6 Rc1 Na3 f1R Nc7 Rff4 Nc2 Rfb4 Ne1 Rc3 Ngf3 Be7 Be4 Bg5 Bc2 Rg8 g7 Bd2 Bh7 Qf8 Qb2 Kd8 d7 Ke7 d8N Bf5 Nde6 Bd3 Neg5 Qe8 Ne4 Qc6 Rc1 a1B Qb3 Bb2 Ra1 Bbc1 Qc4 Be3 Qb3 Bcd2 Qb2 Bf2 d6+ Kf7 d7 Ke7 d8R Qe8 Rd5 Qc8 Rg1 Qe8 Kh1 h2 Rg4 Qc8 Kg2 h1N Kh2 h3 Rh4 Ng3 Qb3 Nf5 Re5+ Kd7 Qb1 Nd6 Nd5 Qe8 Bc7 Qa8 b8B Nb7 Bd6 Kd8 Ne3 Kd7 Bf8 Kd8 Kh1 h2 Kg2 h1N Kh2 Ng3 Qb2 Rd4 Qb5 Nf5 Bbd6 Rdb4 Bb8 Rh8 g8R Nfd6 Bfg7+ Ne8 Rf8 Rg8 Reh5 Ke7 Bbe5 Ned6 Bh8 Rg4 Beg7 Rg3 Re5#
B1Rn2rN/7N/QNB3q1/q3R1nB/R1prp1b1/1k5b/1b2RB1r/bK3N2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 b4 Kd7 f4 Ke6 g4 Kd5 d4 c5 Kd2 h5 Kc2 e5 f5 a5 g6 a4 f6 e3 b6 e2 f7 e1Q g5 c3 g7 a3 g6 e4 b7 h4 b5 a2 b6 h3 Rh2 c4 Re2 h2 Nf3 h1B Nfd2 Nh6 g8B Qe8 g7 Nd7 b8R Nf5 b7 Ba3 f8N+ Qe6 Nh7 Kc6 d5+ Kc5 d6 Qe5 Bd5 Kb4 g8B Qf2 Bc6 Qh4 Bgd5 Nf6 d7 Qg5 d8N Qg6 Nf7 Ne7 Bh3 Be6 Nf1 Bg4 Rc8 Bg2 Be3 Bb2 Bf2 Qc7 Qd4 Qa5 Qa7 Rg8 Re8 Rd8 Nh8 Rd6 Qa6 Rd8 Bd7 Nc6 b8R+ Ka4 Rc8 Kb4 Nf8 Nh7 Re5 Ng5 Nh7 Ka4 Be8 Rd7 Bef7 Nd8 Ba8 Rd1 Bfd5 Rd4 Bdc6+ Kb4 Nbd2 Ka3 Ne3 Bf1 Bg2 Kb4 Bf3 Bfh3 Ndf1 Ka3 Rd1 a1B Kb1 Kb4 Nd5+ Kb3 Nb6 Kb4 Ba4 c2+ Ka2 c1R Rde1 Qd5 B4c6 Rc2 Kb1 Qa5 Rd1 Kc3 Rd3+ Kb4 Ra3 Rcd2 Ra4+ Kb3 Re1 Bd7 Bh5 Bdg4 Bg1 Rg2 Bf2 Rh2 Re2
Nn2kbR1/BrNb4/b4Br1/2pN4/BbN2K1n/1p1p4/1qb1R3/R4BRQ b - - 0 1 illegal: No proof kernel
1n4B1/R2rR3/BRNNbqrR/p1p3B1/nQ1r3N/8/2pbKb2/2Nr1Bk1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 d4 Kd7 e4 Ke6 h4 f5 b4 g5 h5 c5 h6 f4 d5+ Ke7 e6 Kd6 h7 Ke5 b6 g3 e7 c3 e8B f3 d6 g4 d7 g2 b5 g3 b7 c2 b6 a6 Nc3 f2+ Ke2 Ra7 Nb5 Qe7 d8R Bd7 Qd2 Be6 Bf7 Qf6 Nd6 Qh4 Rd7 Qf6 Qb4 Bh6 Bg5 Ne7 Bg8 Nc8 Re1 a5 Re7 Na6 b8R Rd7 b7 Nb6 Rb1 Na4 Ra8 Nb8 Ra7 Bg7 Rh6 Bf8 Qe1 Kd4 e5 Bg7 Rb6 Bf8 Nh3 g1B Nf4 g2 Nd3 Bg7 Qb1 Bf8 Nc1 Bg7 Bf7 Rhd8 h8N Bf8 Ng6 Bg7 Rh5 Bf8 Bg8 Bh6 Ne8 Ke4 Qb4+ Rd4 Nh4 Rd7 Bd2 Be3 Rh6 Kf4 Nd6 Kg3 Qa3 Kh2 Qb4 Na6 b8N Kh1 Nc6 Nb8 Bc3 Bd2 Bb2 Bh2 Ba3 g1R Bb2 Rg6 Bc3 Bf5 e6 Bg3 Bb2 Kg1 Bc3 Be1 Bd2 Bh3 Bg5 Bd2 Rg7 Bf5 e7 Bh3 e8B Be6 Bg2 f1R Re7 Rd1 Bf1 Bf2 Bef7 Bh3 Bc4 Be6 Ba6
1Nb1B2n/rpQ5/4p2r/5N1B/nnBRpB2/R3bR2/qN2n2R/k1b1KN2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kf7 g4 c5 f4 h5 a4 b3 g6+ Kf6 g5+ Kf5 d6 e6 g7 c4 a5 c3 a6 b2 g6 c2 d5 h4 a7 h3 d7 h2 d6 Qb6 d8N Qb4+ Nd2 b1N d7 Rh7 Ne2 Qc3 Ra3 Bd6 Ng3+ Kf6 f5 Ke5 f6 Kd4 f7 Rh4 f8R Rh6 Nc6+ Kd5 d8R Qa5 Nf5 Ne7 g8B Qa6 g7 Ng6 Bf7 Nh8 g8B Nc3 Bh5 Na4 Bgf7 Kc5 Bd3 Bf4 Rd4 Be3 Nf1 Qa5+ Qd2 Na6 Be8 Nb4 Nb8 Qa6 Qf2 Qa5 Bd2 c1B Bc4 Qa6 Qg3 Qa5 Rg1 h1N Rg2 Qa6 Qg7 Ng3 Rh2 Ne2 Rf7 Bg1 Bf4 Bge3 Bd5 Qc4 Qe5 Qa2 Qc7+ Nc6 Bc4 Kb4 Bb3+ Kc3 Bc4+ Kb2 Na6 Rb8 a8N Kb1 Nb6 Ra8 Nb8 Ka1 Rf6 Ra7 Rf8 Nc5 Na4 Nb4 Nb2 Na4 Rg8 Nd5 Rg3 Nb4 Rf3
k1N5/1b3K2/n2b1pN1/BR2Nq2/QB1Rr2B/1n1pb3/2qrR1Rp/b3NB2 b - - 0 1 illegal: No proof kernel
rb2Bk2/N2b1N1b/n1B1qp1b/p1Rp1rN1/6K1/n2R3R/R1pQ4/2BBN3 b - - 0 1 illegal: No proof kernel
3N3b/KNQ1N3/2R1QB2/2Q3q1/R5b1/2N3nr/1nq2Nrr/1rNq1Nk1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 h5 gxh5 a5 b4 a4 b6 a3 b7 Bxb7 Ba6 a2 b5 Bc8 Bb7 Ra4 Ba8 Rxa8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 c6 f4 g4 b6 g3 f6 e6 f7 g2 h6 Bd7 h7 Ra3 h5 Rb3 b7 Rb6 h6 Ne7 f5 Nc8 f6 Bg7 f8Q+ Qe7 Nf3 g1R Qe1 Na7 Nh2 Rg6 Nf1 Rg3 Bb2 Rb5 Nc3 Rg8 h8N Na6 h7 Nc5 Rh6 Nd3 Ng6 Bh8 Nf4 Nc8 Nfe2 Rh3 Nc1 Rg2 b8N Rb3 Qd8 Rhh2 Na6 e5+ Kc4 c5 f7+ Qf6 f8Q+ Ne7 Nb4 e4 Qb6+ Ke5 d6 Kf4 Qc7 Bh3 Kb5 Kf3 Kb6 e3 Ka7 c4 d7 e2 d8N Nf5 Nb7 Qg5 Qfc5 Bg4 Rd6 Ng3 Rc6 Ne5 d4 Nd3 d5 Ra3+ Na4 c3 d6 c2 Bf6 Nb2 d7 Rc3 d8N Re3 Ncd3 c1Q Nc3 Qc2 Nf2 Rd3 Qd1 Re3 Qdd6 e1Q Qe6 Qee2 Nbd3 Qed1 Rc1 a1R+ Ra6 Bg7 h8N Rb1 Ng6 Bh8 Ne7 Re2 Qa3 Rh3 Ra4 Rgh2 Qac5 Kg2 Ra6 Kg1 Rc6 Qdd2 Rd1 Rg2 Nc1 Qe1 Rd2 Qed1 Rd4 Rgh2 Nfd3 Reg2 Nf2 Qgg6 Rb4 Qg5 Ra4
R6K/rn1k3B/q1Q3Qr/1rn2rN1/p1r5/N1R1R2b/4N2b/NqNNN3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 c5 Kd3 e5 Ke4 a5 d4 a4 h4 g4 b4 f3 d6 f2 b6 g3 f6 c4 f7+ Kd7 Kf5 e4 h5 e3 h6 c3 g7 g2 Kg6 e2 b5 e1Q b7 c2 b6 c1R h7 Qd2 d5 Qe1 Nc3 Qh4 Rh3 Nc6 b8N+ Kd8 d7 Qc4 b7 Bd6 f8R+ Kc7 d8N Qd2 Ne6+ Kb6 Nge2 g1R+ Ng5 Kc7 Ra3 Na5 Nd7 Qg4 b8N Qh4 Nb6 Be6 Qc2 Bf4 d6+ Kb7 d7 Kc7 d8N Qd6 Re3 Bh3+ Ne6+ Kb7 Nd1 Qc5 N6d4 Kc7 Nb3 Qc4 Nc6 Rg4 Na1 Qg3 Nb4 Re8 Na2 Re7 Rac3 Qg1 Ra8 Rb1 Nac1 Nf6 g8Q Nd7 Qf7 Qc6+ Kg7 Nc5 Nc4 Bh2 Na3 Nab7 Qg6 Rd4 Nf3 Kd7 Ne1 Qa6 Bg2 f1R Be4 Rc4 Bc2 Rf8 h8N Rf6 Qg2 Rh6 Bh7 Rb5 Qg6 Rc8 Qg2 Rc7 Kg8 Rf4 Qfg6 Rf5 Nf7 Re4 Kh8 Rc4 Qf6 Qh1 Qgg6 Qe4 Ng5 Qb1 Ra7 Na5 Ra8 Ra7 Qb6 Nab7 Qbc6+
b1N1RNKn/r1k5/2nNNbn1/p3N3/q1r5/3R4/3rN1qR/1QNB1nQ1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 Kd3 e5 Ke4 c5 d4 a5 h4 c4 f6 g4 Kf5 g3 b4 c3 g7 c2 Kg6 c1Q Kf7 g2 d6 f3 h5 f2 d5 e4 h6 e3 b6 e2 b5 e1R b7 Qb2 b6 Re8 h7 Re5 Ne2 g1N Ra3 Rg5 Rd3 Qa3 Rh2 Qa4 Nc1 Rg2 Nc3 Nc6 b8Q Qa1 b7 Qa3 Be2 Nh3 Qg1 f1N Bd1 Qb4 N3e2 Nge7 g8N Ng6 Ne7 Rg8 h8N Ngf4 Nhg6 Qc7 Ne5+ Kd8 d7 Ra7 Rh1 R8g4 Rh2 Ng5+ Kg8 Ng6 f7 Bg7 f8N Qcb6 Qa8 Bh8 b8R Qa4 Qb7 Qf2 Qb1 Kc7 d8N Bb7 Nc8 Bf6 Ndf7 Rc4 Nfd6 Qg3 Ne7 Rf2 Re8 Nf7 Nec8 Qg2 Nb5+ Kb8 d6 Ba8 d7 Nfh8 Nbd6+ Kc7 d8N Bg7 Ng3 Rd2 Nge2 Bf6 Nde6#
2b1q1NB/n1pQ4/1BN2K2/2r1rQ1p/R1bB2B1/8/1BB1rkr1/B2n1N1q b - - 0 1 illegal: No possible last move
1nR2R1K/nNb1R3/1R1p1p2/1q2qR2/2Br2kR/B1BQq3/3r4/Q2Rnq2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 h5 axb5 c6 d4 Bb7 Nc3 Ke7 g4 f6 g5 c5 g6 cxd4 Ne4 Bc6 Nf2 Bd5 Ng4 Bf7 gxf7 hxg4 Kd2 Ke6 Kd3 Kf5 e4+ Kg6 b4 Kh5 h4 g5 c4 a5 e6 a4 c5 a3 e7 a2 e8Q Nc6 b6 Na5 b5 Ne7 b7 Bg7 b8B Qb6 f8R+ Ng6 c6 Nb3 e5 Ra6 Ke4 d3 Kf5 d2 e6 Rg8 c7 Bh6 c8R Qc6 e7 Ra4 b6 Nc5 b7 Na6 Bc4 Qb5+ Be5 Nb8 Nf3 g3 Ba3 g2 Ne1+ g4 Rf1 g1Q Qd8 Qe3 e8R Bf4 Nd3 Rg7 Rf3 g3 Nc5 g2 Re7 g1N Bc3 Bc7 Qe1 Rb4 Rd1 a1Q Rf4 Nf3 Qg1 Na6 b8R Nge5 Rb6 Rg2 Nb7 Nb8 Qf1 Ne1 Qd3 Kh6 h5 d6 Ke6 Kg5 h6 Rh2 h7 Nec6+ Kf7 Na7 Rf5+ Kg4 Kg8 Qb2 h8R Re2 Bf7 Rd4 Bc4 Qbe5 Rhh7 Qbb5 Kh8 Rf2 Qd7 Rg2 Qc6 Rf2 Qh1 Rh2 Rc1 d1Q Qhf1 Qdf3 Rd1 Rd2 Rh4+ Kg3 Qb1 Qg2 Qfd3 Qf1 Rh3+ Kg4 Qa1 Qff4 Rhh5 Qf1 Rh4+
2r1N3/2qBQp2/1RQ3q1/2Bn2Bp/1p4b1/4rQ1k/q1Nr2nB/BB3K1B b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 h4 g5 e4 e5 exd5 e4 Ra3 Bg7 Rb3 Be5 fxe5 gxh4 axb5 Qd7 b6 Qc7 b5 Qd8 Rb4 cxb4 g4 Ke7 d4 a5 c4 e3 g5 a4 d6+ Ke6 c5 Kf5 c6 h3 e6 h6 b7 e2 d7 Kg4 e7 a3 e8Q h2 g6 a2 d5 a1R b6 R8a2 g7 Kh4 d6 Na6 b8B Rd2 c7 Nf6 g8B Rc2 b7 Ng4 Bb2 Rc3 Bh7 Rca3 Nh3 Rc3 Nf4 Nf2 Nh5 Rc5 Ba7 Rc3 b8B Rf3 Nf6 Rg8 Bc5 Rh8 Na3 Nh3 Bb1 Re3 Bg2 Nf4 Nc2 Ra2 Ba1 h5 Rg1 Qe7 d8B h1Q d7 Qh2 Bh1 Kh3 Rg6 Ng2+ Kf2 Qed6 Qd5 Rb2 Qf3+ Qhg3+ Kg1 Qd3 Rh6 Qg6 Qee4 Ra2 Qc6 Rg8 Ne8 e1Q+ Qf1 Qe2 Qff3 Rb2 Bg5 Rh8 d8Q Bg4 c8B Nc7 Qdd6 Nd5 Bd7 Qc4 Qe7 Qa2 Kf1 Rf8 Nd4 Rd2 Nc2 Rg8 Nf6 Rc8 Ne8 Qe6 Qb7 Qe5 Rb6 Qe4 Qc6 Qg6 Qf5 Qc7 Qd3 Qb7 Bh2 Qba7 Qf5 Qc7 Qf3+
1Qb2R2/1BBnQ1b1/kNr1R1bR/3RRqqr/KQ4R1/1B1qn3/8/3rn3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 b4 Kd7 d4 a5 Kd2 e5 Kc2 c5 Kb3 Kc7 h4 Kb6 h5 c4+ Ka4 g3 h6 c3 h7 g2 f6 f3 d6 f2 d7 c2 f7 e4 d5 e3 d6 e2 g6 e1Q g7 Qe6 Rh6 Na6 Nf3 g1Q Bf4 c1R Nd2 Rb8 Nc4+ Ka7 b6+ Kb7 b5 Qh2 Qe2 Be7 f8R Nc7 Bg2+ Nd5 Qe4 Rh1 Rg1 Qf5 Re6 Nf6 g8B f1B Bf3 Qhh3 Rg4 Bd3 Bf7 Rg8 h8R Rg6 Rh6 Rd1 Qe1 Qhh5 Qb4 Qhg5 Re5 Be4 Re8 Bf8 R8e6 Bg7 Bg8 Qf8 d8R Ne3 d7 Qd6 Rf8 Qd2 d8Q Nd7 Qde7 Qd3 Rd5 Rf6 Bc7 Ra8 Ree5 Rc6 Bh1 Qf3 Rff6 Bg6 Rfe6 Qff5 Bg2 Ra6 Bf7 Ka8 b7+ Ka7 b8R Rc5 Red6 Rac6 b6+ Ka6 b7 Rb5 Nb6 Rbc5 Rdd4 Rb5 Bb3 Rbc5 Ka3 a4 R4d5 Ra5 Rde6 Rb5 Qf4 Ra5 Kb4 a3 Be4 Rac5 Ka4 a2 Bf3 a1N Qb4 Nac2 Bh1 Nf6 Be4 Ne1 Bh1 Bd7 Rf8 Bc8 b8Q Nd7 Rdd4 Rd6 Ba8 Rdc6 Rdd5 Rc4 Rg2 Rh4 Rg4 Rh5 Bb7+
kb2rN2/r1qB1KQ1/2qrn3/N2QN3/3R1QR1/2b1R1qq/b2q2NN/1N6 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 b3 f5 Qc2 f4 Ba3 h6 Be7 Nc6 Qd1 Nd4 Bg5 Nf5 gxf5 hxg5 Ra4 Kd7 Kf2 c5 e4 Kc7 d4 Kb7 h4 a5 b4 g4 h5 g5 e5 c4 f6 c3 b6 c2 b5 c1R e6 Be7 f7 Rh6 f8N Rc7 d6 Qe8 d5 Nf6 d7 Rh8 d6 Rh6 Bh3 Nh7 d8N+ Kb8 b7 Qc6 d7 Bd6 Qf1 Rg6 Rd4 a4 e7 g3+ Ke1 g4 Kd2 g2 Kd3 a3 e8R f2 h6 g3 Nde6 a2 d8Q a1B Nf3 g1Q Rh2 Qc5 Ke4 Bc3 Rg2 Qh1 Nh2 f3 Nf4 Qc4 Be6 Ng5+ Kf5 Rcg7 Qc1 f1Q h7 f2 h8Q Qd1 Qe3 Re7 Qg7 f1Q Qd7 Ka7 b8N+ Bb7 Qc6 Qd2 Nbd7 Rb8 b6+ Ka8 Rg1 g2 Qcf3 Bd5 b7+ Ka7 Qef2 Qc8 Qe4 Ba2 Qh4 Ra8 b8N Qfd3 Qg4 Qh3 Nc6+ Kb7 Qee5 Ra7 Na5+ Ka8 Qc5 Bb8 Qce5 Rh6 Qc5 Rh4 Kf6 Qc7 Bf5 Re5 Re6 Rd5 Re3 Rd6+ Ke7 Rhh6 Ke8 Rhf6 Ne5 Rf7 Bd7 Ne6 Rf1 g1Q Rff3 Rb6 Rg3 Rd6 Q4g5 Qge1 Rg4 Qhc6 Qd5 Qef2 Ng2 Qfg3 Qf4 Rf5 Nh7 Rf8+ Ke7 Rg8 Kf7 Re8 Nf8
1q4kN/1Q4Q1/Q5Br/2B2Bn1/p2q1NR1/rbbN1rQr/r1Q3KQ/5r2 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 b4 f5 Qc2 h5 Qd1 f4 Ra6 Nc6 Rb6 Nce7 Rg6 Nf5 gxf5 Kd7 Rg3 Ke8 Rg4 hxg4 Kf2 Kf7 d4 c5 h4 g5 e4 a5 h5 c4 h6 a4 b6 c3 b5 c2 d6 Qc7 f6 Ra5 d5 Be7 h7 Ra7 d7 Bb4 d8Q Qb8 b7 Bf5 e5 Qa8 b8Q Bc8 b6 Bc3 b7 Bd4+ Be3 c1Q d6 Qc3 d7 Nh6 Nh3 Ra6 Qa5 g3+ Kg1 f2+ Kg2 g4 d8Q Bf5 Qdc8 Bc2 Rg1 Bb3 Bd3 f1R Na3 Rf3 Nc2 Rc6 Qd6 Qb8 Ne1 Qb4 Qa7 Bc3 Qc2 Qd4 Bf5 Rb6 Qa6 Rc6 Kh1 g2+ Kh2 Rb6 Nd3 Rc6 Qa3 Rd6 Qd7+ Kf8 e6 Nf7 Qc7 Ng5 f7 Kg7 e7 Rh6 Rh1 g1R e8B Rc1 Rg1 g3+ Kg2 Ra1 Qcc6 Ra2 Qad6 Qba7 b8Q Ra3 Qbc7 Qb8 Qc6b7 Ra2 Kh1 g2+ Kh2 Rf8 h8N Rg3 Qa3 f3 Qab2 f2 Qcd6 Qc4 Bc5 f1R Qf4 Rgf3 Qg3 Ra3 Qa2 Qd4 Qab2 Re6 Nhf4 Rh6+ Bh3 Kh7 Qa2 Rg8 f8Q+ Rg7 Qff6 Kg8 Bg6 Rgh7 Qab2 Nf7 Qfh4 Ng5 Bhf5 R1f2 Re1 Rf1 Re4 g1R Qh5 Rh1+ Kg2 Rfa1 Qhh2 Rhf1 Nh5 R1a2 Rg4 Rd1 Nhf4 Rdf1 Qcf2 Rh3 Qfg1 R7h6 Qc2 Qc4 Qd4 Qd5 Qdf6 Qd4 Qfg7+
8/2B2Q1K/1qnb1Bp1/3pR1QQ/RnRrk1q1/6RN/1q2B2R/1Rb1r2n b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Kf7 f6 Ke6 g4 Kd5 f7 Kd6 f4 h6 f5 Nc6 Nd2 Ke5 Ne4 Nb8 Ng5 hxg5 Kf2 Kd6 Ke1 Bb7 f6 Be4 Bd3 Bg6 Bf1 Bf5 gxf5 g4 Ke2 Kd5 Kd3 a5 h4 e5 b4 g3 c4+ Kd6 Ke4 a4 h5 a3 b6 g2 b7 a2 b5 d3 h6 d2 h7 Qe7 c5+ Kc7 c6 Kd6 b6 Ra7 c7 Nh6 c8R Nc6 b8R Nd8 b7 Ng4 Bb2 Qe6 Qc1 d1Q Qg5 Ra4+ Bd4 Be7 f8R Qd2 Rb1 a1N f7 Qb2 f6 Nc2 Ra8 Qeb3 Kf5 Kd5 Kg6 Qb6 b8B Nf2 Rh6 Nh1 Rh2 d6 Rc3 Nc6 Nh3 g1Q Bc7 Qg4 Rg3 Rc4 Ra4 N2b4 Rd8 Re8 h8Q Bf8 Qh5 Re6 Kh7 g6 Qgh4 Bh6 f8R Bc1 f7 Re7 Ng5 e4 Nh3+ Re5 Q4g5 e3 Rde8 e2 Bc3 Rf4 Re6 Re4 Rf6 Rf4 Rd8 Re4 f8Q Rf4 Rf5 Rc4 Rgf3 e1B Bd4 Bed2 Rg3 Bf4 Bc3 Re4 Qff6 Re1 Be2 Ke4 Qf7 Rd5 Bf6 Rdd1 Rc5 Rd2 Rc4+ Rd4 Rda8 Be5 R8a5 Bef4 Rf5 d5 Rg1 Be5 Rg3 Bd6 Re5+
8/rn1B1b2/Q2pB3/4NbQQ/KQN2nq1/1Q4Nq/2r1p2k/RnBq3Q b - - 0 1 legal: proof: f4 b5 d4 f5 a4 h5 axb5 c5 g4 cxd4 gxf5 e6 b4 Bc5 e4 Qe7 e5 Qd8 Ra3 Bd6 Rg3 Be7 Rg4 Bf6 exf6 hxg4 Kd2 Kf7 h4 g5 c4 a5 Kc2 a4 b6 e5 h5 e4 h6 a3 Kb3 d6 b7 g3 h7 e3 b5 g2 c5 g4 b6 a2 c6 a1Q c7 g3 Nd2 d3 Nc4 d2 Ne2 g1Q Bh3 g2 Ng3 Ne7 Qh5+ Ng6 Bg4 Be6 c8B e2 Bd7 Nc6 b8Q Ra7 b7 Re8 h8Q Qc8 Qg5 Qh2 Qhh5 g1N Qa8 Nd8 b8Q Nf3 Qb4 Re7 Bh3 Rc7 Qa6 Nb7 Rd1 Qb1+ Ka4 Rc5 Rf1 d1B+ Qb3 Bc2 Bg4 Kg8 f7+ Kg7 f8N Qh3 f6+ Kf7 f5 Nd2 Rg1 Be4 Qb4 Qd3 Rf1 Nb1 Rg1 Qd1+ Qb3 Kg8 f7+ Kg7 Re1 B6d5 Be6 Bc2 Nd7 Qg8 Nde5 Rc8 Qf4 Kf6 f8Q+ Rf7 Qd2 Nf4 Qd8+ Re7 Bd7 Bf7 Qb4 Qg6 Qda5 Qg7 Be6 Rec7 Qac5 Ra8 Qc6 Ra7 Qh1 Rc6 Qh8 Kg5 f6 Bf5 Qh7 Bh5 f7 Kh4 f8Q Rc7 Qhg8 Bf7 Qe8 Rc5 Bf3 Qg5 Bc6 Qg4 Bcd7 Rc7 Nb6 Rc2 Nbc4 Qh2 Qg5+ Kh3 Qe4 Qg2 Qef3 Kh2 Rf1 Bg8 Qeh5+ Q2h3 Be8 Na3 B8d7 Qd3 Be3 Bf7 Ra1 Qd1 Bc1 Nb1 Qh1+
Q1rb1R2/1R1N3n/1rQ1B3/Kb3N1R/2RN4/3pq3/kn1p1p2/Rq1QR1q1 b - - 0 1 illegal: No possible last move
N3K2Q/2B1p2q/1p6/5QR1/BqQn3B/1N2bbQr/NQ1rn1p1/1n4Qk b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h5 g4 Nc6 g6 Nb8 g5 Ra5 Bg2 Ra7 Bf1 Ra8 a4 Qd7 Ra3 Qd6 Rg3 Qd8 Rg4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kf4 d4+ Ke4 h4 c5 f6 b3 d6 c4 a5 c3 g7 b2 d7 c2 f7 g3 g6 g2 h5 b6 d5 Na6 Kc6 Nf6 g8Q Nc7 d6 Nce8 g7 Nc7 h6 Nfe8 a6 Nd5 a7 Ndc7 Qf3+ Ke5 Bg5 c1N Bh4 Nb5 Qf2 Ke4 Nd2+ Ke5 Nb3 Ke4 Ne2 b1Q Nc3+ Ke5 Na2 Nc3 Bb5 Ke4 Ba4 Nc7 Rf1 Rb8 a8N N1e2 Rd1 Rh7 Rd5 Ne6 Rg5 Qc2 Qf5+ Ke3 Qh8 Qd2 g8Q Nb1 Qb2 Qb4 Qgg6 Rh8 h7 Bh6 f8Q Rb7 Q8f7 Qg8 d8B Rd7 Bc7 Rd8 d7 N6d4+ Kd5 Bb7+ Qc6 Bc8 Qc4 Bb7+ Ke5 Bf3 Q7g6 Rb8 d8Q Qf7 Qf8 Rd8 Rg3 Kf2 Rg5+ Kg1 Qd6 Rg8 h8Q Qh7 Q8f7 Kh1 Q7f6 Nb5 Ke6 Rge8 Qg3 Rd2 Qf7 Nbd4+ Kd7 Rg8 Qf8 Rg6 Ke8 Rd6 Rg6 Be3 Rg5 Rg6 Qfg7 Re6 Qf2 Re4 Qge5 Rg4 Qd6 Rg3 Qdf4 Rh3 Q4g4 Nec3 Qgg3 Nce2 Qg1+
2Q2nR1/QBp1k2N/2qqQ3/n5rp/1pB1Qb2/1n2rb2/B1R5/Q1R2KQ1 b - - 0 1 illegal: No possible last move, all moves rejected
2nr2RR/6r1/1k2Q1p1/4p1QN/Rqb1n1Qn/3R4/NRpNK2B/qr3R2 b - - 0 1 legal: proof: c4 b5 f4 f5 a4 h5 axb5 e6 e4 Be7 Be2 Bf8 Bg4 d5 cxd5 fxe4 g3 Bd6 f5 Bf4 gxf4 hxg4 h4 Kd7 b4 c5 d4 Kc7 f6 a5 h5 e5 h6 g3 f7 a4 f8Q g2 h7 e3 d6+ Kb6 d7 a3 d5 g6 f5 a2 f6 c4 f7 c3 d6 e2 Nd2 c2 Qe8 Qg5 d8Q+ Kb7 f8N Qg4 d7 Qg5 b6 Ra7 b5 Ne7 Ne6 Ra8 Nf4 Nd5 Nh5 Na6 Qe6 Rg8 h8R Qh6 Qg5 Rg7 d8R Ne7 Rd3 Nc5 Kf2 e1N Ke2 Kb8 b7 Kc7 b8R Ba6 Rbg8 Rd8 b6+ Kb7 Rh4 Nf3 Ra4 Bc4 Rb1 a1Q Rb2 Kb8 b7 Kc7 b8R Nh4 Rf8 Ne4 Rf1 Rd5 Rbg8 Nc8 Nh3 g1R N3f4 Rd6 Nd5+ Kc6 Nb4+ Kb6 Qgf6 Qf4 Qg5 Kc5 Na2 Rd8 Qe1 Qf8 Qeg3 Qe7 Qgh3 Qb7 Qhg4 Qb4 Nb1 Kb5 Bf4 Rh1 Bh2 Kc5 Qf7 Kb6 Nd2 Rg1 Rf4 Rc1 Rf1 Rb1 Qfe6+
RKBB3N/1Bp5/2B2Nk1/1r3p2/1rn2pB1/b2p3Q/1QQ2Nb1/nBr1r3 b - - 0 1 legal: proof: d4 a5 c4 e5 b4 d5 bxa5 g5 cxd5 Ke7 f4 gxf4 d6+ Ke8 a4 Nf6 g4 Ng8 h4 Qe7 h5 Qf6 g5 Qg7 d5 Qg6 hxg6 Nh6 Ra2 Ng8 Rd2 Ra7 Rd3 Ra8 Rd4 exd4 Kf2 b5 Kf3 f6 Ke4 h6 g7 Kf7 g6+ Ke8 d7+ Ke7 d8N b4 a6 d3 a5 b3 d6+ Ke8 Kd5 b2 e4 Bh3 a7 Na6 Kc6 Be6 Kb7 Ne7 g8Q Nc8 d7+ Ke7 e5 Nb8 g7 Bf7 a6 Nc6 e6 Ne5 Qc2 Nc6 Nd2 Nb4 Ne4 b1R Be2 Ra1 Nh3 Na2 Bg4 Nc3 Qh7 Bh5 g8B+ Bf7 Nhf2 Nb1 Bb2 f5 Nf6 h5 Rc1 Kd6 e7 h4 e8B Ke7 Qh6 Ba2 Nf7 h3 d8Q+ Ke6 Rf1 h2 Bc6 h1R Qd4 Nb6 Qh3 Nd2 Bc3 Rd8 a8B Ba3 a7 Rd5 Kb8 Rb5 Bab7 Nb3 a8B Rc1 Bc8+ Ke7 Rg1 Na1 Bab7 Nc4 Re1+ Kf8 Re8+ Kg7 Be1 Bb3 Qdb2 Kg6 Bb4 Ba4 Be7 Rhe1 Bd8 Bb3 Re5 Rb4 Ra5 Ba4 Ra8 Bb5 B6d7 Bc6 Be8 Bg2 Bc6 Na5 Ng5 Rb5 Ba2 Nc4 Nf7 Rhe8 Bb1 R8e5 Bd5 Rb4 Bc6 Reb5 Nh8+
2Rr2N1/knrR3q/4qN2/1r1B2b1/q1N2BnB/NqN3K1/2R1r2N/N3r3 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Qb3 f3 Qb4 Be6 Qe4 f4 Qf5 Bc8 Qg5 Bf5 gxf5 Nf6 Qh4 Ng8 Qg4 hxg4 Kf2 Kd7 e4 Kc8 b4 Kb7 h4 g5 d4 c5 h5 a5 f6 a4 b6 c4 d6 a3 e5 a2 b5 c3 f7 c2 e6 Ra3 d5 Ra6 d7 Qe7 d8N+ Ka8 d6 Ra7 d7 Na6 b7+ Kb8 h6 Qa3 e7 Qa5 e8N Ba3 f8N Nf6 h7 Nc5 Nc7 Qc3 Bg2 Ra5 Nf7 Qb3 d8B Ka7 b8R Nb7 Nd7 Be7 Nfe5 Rg8 Bd2 c1R Nd5 Rc7 h8N Rf8 Nc4 g3+ Kf1 g4 Nc5 f2 Ng6 Rg8 Rh2 Rh8 Ke2 f1R Ndc3 f3+ Ke3 f2 Kf4 Re8 Rc8 Rd1 Nf3 f1R Nba3 Rfe1 Rc1 a1Q Rc2 Re2 Rh7 Rde1 Nh2 Rg8 Bd5 g2 Be3 g1Q Rf7 Qh1 Kg3 Qe4 Bf4 Qe6 Rh7 Qab1 Rf7 Qa4 Nb3 Rh8 Na1 Qbb3 Nh4 Re8 Nf5 Rf8 Nh6 Rg8 Kh4 g3 Rh7 Rh8 Ng8 g2 Kg3 Ng4 Rf7 Bg5 b6+ Ka6 Rd7 g1Q+ Kf3 Qh1+ Kg3 Rb5 Be7 Nd8 b7 Ka7 b8N Nb7 Bd8 Bh6 Bh4 Bg5 Rd6 Qhe4 Nd7 Q4g6 Ndf6 Qh7 Ne7 Rg8 Rd7 Rd8 Neg8
bn3N2/2Rq4/q2Rp1r1/q1BN4/1q1r3N/1p1BnKRR/Rb5k/BR3R2 b - - 0 1 illegal: No possible last move
1B4q1/rB1R3p/k1n1Qb1r/2B1Q3/2bQrQn1/1Q1NN3/r2B2K1/B1b5 b - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 g5 c4 c5 cxd5 a5 h4 gxh4 bxa5 Ra7 Ra3 Ra6 Rb3 Ra8 Rb4 cxb4 axb5 Bh6 Bb2 Bg7 Bc1 Bf8 d4 Kd7 f4 Kc7 Kf2 Kb7 g4 e5 d6 e4 f6 b3 g5 h3 f7 h2 b6 b2 g6 e3+ Kg2 e2 d5 e1B d7 Bc5 f8B Be7 d6 Ra6 f5 Bg3 f6 Qe8 d8B Qf7 d7 Bed6 g7 Qh5 f7 Ra7 a6+ Ka8 Bd2 Bh4 Bf6 Bhg3 d8Q Be6 Qb3 Bge5 Ne2 Bg3 Na3 b1R Nc4 Qe5 Ne3 Qd4 Nf4 Be1 Nd3 Be5 Bc5 Ra1 f8Q Qc4 Qd4 Nh6 g8Q Ng4 Qfd6 Bf4 Q6e5 Bh4 Be2 Bhg5 Rd1 h1R Bf3+ Qd5 Qf8 Rh6 Qfd6 Bg8 Qde6 Ra2 Be4 Nc6 Bf3 Rc7 a7 Kb7 Be4 Ka6 a8Q+ Ra7 b7 Bf7 Qab8 Re8 Qbc7 Qd8 b8B Re7 Bg7 Bf6 Qcd6 B4g5 Qf4 Qg8 Qee5 Bc4 Qde6 Red7 Bh8 Rd6 Bd5 Na5 Ba8 Nc6 Bg7 Rd8 Bh8 Re8 Qde4 Rd8 Nd5 Ra4 Bc1 Qf8 Ne1 Rd6 Q5f5 Bd8 Qd2 Rb4 Ba1 Qg8 Qfe5 Bb5 Qdc3 Be3 Q4f4 Re4 Rd4 Bd2 Ne3 Bf6 Rd3 Rdd4 Qcb4 Rc4 Rd7 Rc2 Nd3 Ra2 Q4c3 Bc4 Qcd4 Bc3+ Bd2 Bb2 Bf8 Ba3 Bc5 Bc1 Bb7+
1r1N1kq1/1BnbN1NQ/1Qq2RQ1/r2nr3/3N4/bQ2b3/bQB5/1Nb1K3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 h6 Ra4 Qd6 Rf4 Qd7 b4 Qd8 Bb2 Kd7 Bd4 Ke8 Bf2 Qd7 Bh4 gxf4 g5 Qd6 g6 Qd8 Bg5 hxg5 d4 a5 h4 c5 f7+ Kd7 g7 e5 d6 c4 h5 e4 d5 e3 b6 a4 b5 g4 f6 f3 h6 c3 b7 a3 h7 a2 b6 a1R Qb3 c2 Bd3 c1B Bc2 g3 Rh6 g2 Ne2 g1B Nd4 Na6 b8Q e2 b7 Ne7 g8B Bg7 f8N+ Ke8 Ng6 Bf8 f7+ Kd7 Qa7 Ra5 b8Q+ Nc7 Qa6 Bge3 Qb2 Qe8 Q8b3 Rb8 Qc6+ Kd8 Qcb6 Qc6 d7 Nf5 Qa6 Ba3 f8N Ne7 Be6 Rg8 h8Q Rg7 Bh3 Rf7 Qg8 Rf5 Qh7 Re5 Qad3 Ba6 Bg2 Bc4 Qa4 Ba2 Qab3 Ng8 Ne7 Nf6 Rg6 Rb6 Nef5 Rb8 Ng7 Ke7 d8Q+ Kf7 d6+ Nfd5 Qh3 Kg8 d7 Kf7 Re6 Kg8 Ng6+ Kf7 Qdh4 Kg8 Ne7+ Kf8 d8N Bed2+ Kf2 Nb4 Ne8 Qa4 Qhe4 Be3+ Kg3 f2 Qb7 e1Q Qhh7 Qg1 Qb6 f1B Qde4 Bc4 Rf6+ Bf7 Kf3 Qb5 Bh1 Qg8 Qeg6 Qd5+ Ke2 Qb7 Rd6 Be6 Ke1 Bd7 Ng7 Qbd5 Re6 Qc5 Ba8 Qc6 Bb7 Nbd5 Rf6+
B1b5/1Nbq1k2/7Q/2BBBRpr/1B1N1b1N/n2r1qNQ/N7/K1nb1q2 b - - 0 1 illegal: No possible last move
NbQ3nB/2B1r1QK/2NQ1p1b/4p3/B7/3Bkb1r/RqnQB3/n2Q1q2 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 h4 b4 hxg5 b3 axb3 Bf5 b4 Bg4 b5 Bc8 e4 Bg7 e5 Bh6 f5 Bf8 f6 exf6 b4 Bh6 e6 Bg7 Ra3 Bh6 Re3 Bf8 Re5 fxe5 Qa4 Ke7 Ke2 Kd6 Ke3 c5 Ke4 h5 Kf5 a5 d4 h4 g4 f6 Kg6 h3 b6 c4 b5 c3 e7 h2 e8B c2 b7 Qc7 b6 Ra7 Nd2 Bh6 Ngf3 Ra8 Nc4+ Ke7 d6+ Ke6 d7 Kd5 d8B Ke4 d5 Rh7 d6 Qd7 Be2 Qe6 d7 Bg7 Nd4 Na6 b8Q Nc5 b7 Qd6 Nb6 Ra7 Na8 Qe7 Bb6 Na6 d8Q Qa3 Be3 Bd7 Ra1 h1Q Qbc8 c1B b8Q Bf8 Qd1 Rh3 Bf4 Nh6 Kh7 a4 g6 Qf1 g5 Nc5 g7 Bf5+ g6 Nd3 Ba5 Be7 g8B Nb4 Bgc4 Bg4 g7 Qb2 g8Q a3 Ba4 a2 Nc6 Bf3 Qg3 Ng8+ Bh6 Bf4 Q8d2 Bd6+ Qbc7 Nc2 Bcd3+ Kd5 Qe7 Bb8 Qgg4 Rd7 Bc7 Be3 Qf7+ Kc5 Qe6 Re7 Qed7 Rg3 Bf8 Bh6 Bg7 Rh3 Bh8 Qb6 Rb1 a1N Qg7 Qb4 Rb3 Qb7 Ra3 Qb2 Qg4 Kd5 Ra2 Kc5 Qgb4+ Kd5 Bc4+ Ke4 Qdd6 Kf4 Bcd3+ Ke3 Qbd2+
k2rB3/Q1n5/nBBQ1Q2/2b3p1/1Npn1r1R/5n1B/qQ1nN3/1B2rQ1K b - - 0 1 illegal: No possible last move
NNR4N/2Q2n1b/6B1/2bpN1rQ/1BN1r3/2pKQqbq/k1Q5/4r1Qb b - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e6 axb5 Be7 c4 dxc4 d5 Bf8 e4 Ba3 f4 Qe7 b4 Qf8 e5 Bb2 d6 Qe7 Ra3 Qd8 Rd3 Nc6 Rd5 exd5 e6 Bf6 Be2 Ne5 fxe5 Be7 Bf1 Bf8 Kd2 g5 h4 c5 e7 Kd7 e8N f5 b6 Kc6 d7 Kb5 b7 a5 b8N g4 e6 a4 h6 g3 h7 g2 h5 a3 e7 a2 h6 a1Q Qb3 f4 Nh3 g1R Qg3 Ka4 b5 f3 b6 Kb3 b7 c3+ Kd3 f2 Bd2 c2 Bb4 c1B Nd2+ Ka2 Nc4 Bf4 Nc7 Qf6 e8Q Ra4 Na8 Qh4 Qe1 Qdf6 Qge3 Rg5 d8Q Bg3 Nf4 Qh3 Ng6 Qf3 Qc7 Bg4 Be2 f1B Nge5 Bg2 Qg1 Bh5 Qc8 Bg6+ Qf5 Bd6 Bd1 Bf8 Bc2 Be7 Rh2 Bh1 Rf2 Nf6 Rf1 Ne8 Rc1 Nd6 Qe4 Rd8 h8Q Nf7 h7 Re8 Qf5 Bd6 Qe4 Re6 Qe8 Bf8 h8N Bh7 Qf5 Nh6 Qh5 Nf7 Nbc6 Be7 b8Q Bd6 Qc7 Bf8 Ncb6 Re8 Nb8 c4+ Kd2 Be7 Qfc8 Bc5 Bg6 Kb2 Qf5 Ra1 Rc3 Re1 Qc2+ Ka1 Rb3 c3+ Kd3 Re7 Nbc4 Re6 Ba5 Re8 Rb6 Re7 Bb4 Re8 Rd6 Re6 Rd8 Re8 Qc1+ Ka2 Rc8 Re6 Ng4 Re4 Nge5 Bh2 Qd1 Bg3 Qc2+
7Q/p2RBr2/2b2n1q/1p1N4/2QQQqpR/1bn2p2/1k3K1R/RBb1Q1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 b4 exf4 a4 c6 axb5 Bc5 b6 Bd6 b5 Nh6 b7 Na6 b6 Bf8 Nc3 Ng8 Nb5 Nb8 c4 cxb5 c5 f5 d3 d6 d4 Na6 d5 Be6 Qd3 Rc8 Qd1 Rc6 dxc6 Bc8 Qb3 Bd7 Qd1 Be6 b8Q Kf7 e4 Kf6 h4 Ke5 c7 g5 c8R g4 h6 f3 h5 f4 h7 Bg7 b7 Bd5 c6 Ne7 c7 Nf5 h6 Bb3 Kf2 d5 Ba3 d4 Bd3 Rf8 h8Q Rf7 h7 Qg8 Rh2 Nd6 Bb1 d3 Nh3 Kd4 e5 Kc3 e6 d2 e7 Qf8 e8Q Nb4 Qee1 Ne8 Qa8 Nf6 b8R Na2 Rb7 Bh6 Be7 Kb2 Re8 Nc3 c8Q Bd5 Qc4 Bc6 Rd7 Qg7 Qda4 d1B Qd4 Bb3 Qac4 Bd5 Qac6 Qg6 Qce6 Bc6 Q6e4 Qg5 Qf8 Qg7 h8R Bg5 Rh4 Qh6 Kf1+ f2 Qh8 Rf8 Rc8 Rf7 Kg2 f3+ Kg3 Bd2 Nf4 f1Q Nd5 Qe2 Rcd8 Qee3 Rc8 Qef4+ Kf2 Ba8 Rc6 Bc1 Re6 Bb7 Re5 Bc6 Reh5 Bd1 Rh1 Bb3 Rg1 Qfg5 Rh2 Qf4 R5h4
1Nb2KB1/2NbnpN1/p3N3/2pp1pr1/1QQ3k1/QQ1N2r1/1RqQ2R1/b7 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g6 a4 c6 axb5 Na6 f5 gxf5 d6 Qb6 d7+ Kd8 Nf3 Nb8 Ng1 Kc7 d8N Kd7 Qc2 Ke8 Qa4 Nh6 Qd1 Ng8 g4 Bd7 d4 Qa6 h4 Nh6 d5 Bc8 g5 Nd7 h5 Ne5 d6 Ng8 Bf4 Ng6 hxg6 Qb6 Bg3 Bh6 d7+ Kf8 Bd6 exd6 Ne6+ Ke7 Nd8 Bf8 Kd2 h5 Kd3 a6 Kc4 h4 e4 h3 b4 h2 e5 c5 Kd5 Nh6 e6 Ra7 g7 Qc7 g8Q Bg7 b6 Qb8 b7 Be5 b5 Bf6 b6 Qc7 b8N Bb2 b7 Bd4 g6 Kf6 g7 Kg5 e7 Bb2 e8N Bd4 Nc3 Kh4 Nge2 Qb6 Nb5 Bb2 Nbc7 Ng4 Rg1 h1B+ Rg2 Qb4 Nc1 Qc3 Nde6 Qd2+ Nd3 Be5 d8Q+ Qg5 Be2 Nh6 Ra2 Qf6 Bh5 Qg5 Qb3 Ra8 Rb2 Bc3 Bg6 Kh3 Bh7 Qd2 Qg5 Qc1 Qd2 Qc2 Qc4 Bf6 Qf8 Bd7 g8Q Be5 Qgg5 Rg8 Qge3+ Rg3 N8g7 Ng8 Qe8 Bc8 Qeb5 Bd4 Qbb3 Kg4 Nc6 Bd7 b8Q Bc8 Q8b4 Bd7 Qcc3 Rc8 Nb8 Ne7+ Kc4 Rh8 Bg8 Rh5 Q3a3 Rg5 Qab3 Ng6 Kd5 Bc8 Qcc4 Bd7 Na8 Bc8 Kc6 Ne7+ Kc7 Bd7 Kd8 Bc8 Nac7 Bd7 Re2 Bb7 Rg2 d5 Q3a3 Bdc8 Ke8 Bc6+ Kf8 B6d7 Ndf4 Bf6 Qeb3 Be5 Ra2 Ba1 Rb2 Kh4 Nd3+ Kh3 Nef4+ Kg4 Nfe6+
Q1nn1RB1/1R3BK1/2BqkB2/1nb2N2/1rR4R/3rrQn1/1Q6/b2Rr3 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 g4 Bf5 Nc3 Bc2 Ne4 Bb3 Ng3 f3 Nh5 Bc2 Nf4 gxf4 h3 Bf5 g5 Bg4 hxg4 Ba3 Rh5 Bb4 Rh1 Bf8 Kf2 Kd7 d4 a5 e4 f5 b4 c5 d6 h5 b6 a4 b7 c4 d5 a3 b5 c3 b6 h4 g6 c2 g7 h3 e5 a2 g5 h2 e6+ Ke8 e7 Kd7 g6 Nf6 g8R Ra3 g7 Nc6 b8Q Rh4 b7 Re3 Be2 Ne8 Bb2 c1N Bf6 Nb3 Rc1 a1B Rc4 Nbd4 Qa8 Qc7 b8R Nb5 Rb7 Nd8 Rh8 Rh3 g8B Rd3 Rh4 Rg3 Kf1 f2 Bh5 Rge3 Kg2 f1R Nf3 Rfe1 Nd4 f3+ Kg3 f4+ Kg4 f2 Kg5 f1N Kg6 f3 Nf5 f2 Qf3 Ng3 Qb8 Rb1 Rd1 f1R Qa8 h1Q Qa2 Rfe1 Qb2 Ng7 Kh6 Qg2 Kh7 Qe2 e8B+ Kc8 Bc6 Ne8+ Kg6 Qb8 Re7 Qh2 d7+ Kc7 Rh7 Bc5 Kh6 Ned6 Kg7 Nc8 d6+ Kb6 Qc2 Rb4 Qb2 Nb7 d8R Qd2 d7 Kc7 Rf8 Nd8 Kg6 Qe2 Rhf7 Qb6 Kg7 Qb8 Nd4 Kd6 Nf5+ Ke6 Rhe4+ Qe5 Rh4 Nb7 d8Q Qd6 Qa5 Nd8 Qa8 Qe7 Qb1 Qe8 Qc1 Qa2 Qd2 Qa6 Qb2 Qb6 Qf4 Qc7 Qf3 Qd6 Rb7+ Qf7+ Bhxf7+
K1n2Q1b/pQR5/qB5B/R1N2qrq/1r3k2/1B3n1Q/1b3rR1/1QB3B1 b - - 0 1 illegal: No possible last move
rr1kr3/1b4N1/br2Q3/n1BQ2RQ/2RnR1B1/2pq2QK/3R2B1/Q2n4 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 d5 a4 a5 bxa5 g5 c4 e6 cxd5 b4 h4 gxh4 a6 Nd7 a5 Bd6 a7 Bc5 Na3 Bb6 axb6 Nb8 b7 Nh6 Nc4 Ng8 Nb6 Bd7 Nc8 Bxc8 d4 h5 g4 c5 f4 c4 Kf2 c3 Kg2 b3 g5 e5 d6 e4 d7+ Ke7 g6 e3 d5 e2 g7 e1N+ Kh3 b2 d6+ Kf7 f6 b1B f5 Nf3 Ba3 Qe8 d8R Qe6 d7 Qb6 Be2 Qb5 Bc5 Na6 b8Q Nd4 Qg3 Ne7 g8R Rh6 Nf3 Nb4 Rg5 Qd3 Re1 Nbc6 Ra4 Ba6 Rc4 Na5 Qa4 Rb8 a8B Nd5 Qa1 Ne3 Be4 Nd1 Bb7 Ndb3 Nd4 Bc2 Ne6 Nd4 Ng7 Rh8 Bef3 Re8 Re4 Bb1 Kh2 h3 Bg4 h4 Ba8 Bc2 Bb7 Ba4 Ba8 Bc6 Bb7 Kg8 Ba8 Bcb7 f7+ Kh8 f8Q+ Kh7 Qe7 Kg8 Kh1 h2 Kg2 h1R f6 Rf1 Qee5 Kf7 Kh3 Rf2 Qf5 Rb2 Qh7 Rb6 Qh5+ Kg8 Re7 Kf8 f7 Bc8 Bg2 Bcb7 Rc8 Ra8 d8Q Rb8 Qd5 Ra8 Kh2 h3 Rd8 Rb8 Rd6 Ra8 Re4 Reb8 Be6 Ke7 Bd7+ Kd8 f8Q+ Kc7 Qff7 Kd8 Kh1 h2 Qg8+ Kc7 Bg4 Re8 Qge6 Reb8 Bf1 Re8 Kg2 h1R Qgh2 Reb8 Qg3 Rg1+ Kh3 Rg2 Re1 Re2 Bg2 Re3 Qf6 Re6 Re4 Ree8 Qfe6 Nf3 Bf1 Qd2 Bg2 Qd4 Qdf5 Qe3 Rc6+ Kd8 Rc7 Qd2 Rf7 Nd4 Qfd5+ Rd6 Rf2 Qd3 Qdf5 Rc6 Rd2 Rb6 Qfd5+
qB1Kbqr1/1R3r2/3pp2Q/7B/Qq1NB3/R1Rq1q2/3Bn3/4QkBQ b - - 0 1 legal: proof: d4 c5 f4 cxd4 g4 a5 e4 g5 b4 b5 a4 f5 exf5 Na6 h4 Bh6 f6 Nc7 Nc3 Ne6 Na2 Ng7 axb5 Ra6 b6 Nf5 gxf5 g4 b5 Bg5 hxg5 Ra8 Nb4 axb4 Kd2 Kf7 Kd3 h5 Ke4 d3 Kd5 d6 Kc6 b3 c4 d2 b7 b2 b8B b1Q c5 h4 g6+ Ke8 f7+ Kf8 b6 Kg7 f6+ Kh6 f8Q+ Kh5 f7 h3 g7 Kh4 b7 Kg3 f5 Kf2 f6 e6 Bg2 h2 Ra3 g3 Be4 g2 Ba7 Rh6 b8B Rh3 Qa4 d1Q Nf3 g1Q Bd2 Kf1 Nd4 Nh6 g8B Qe8+ Kc7 Qbb5 c6 Nf5 Qh6 Qb4 f8Q Qa1 Bf7 Qd1 Bh5 Bd7 f7 Qf3 Qfh8 Ng3 f8Q Ne2 Qfg7 Rh4 Qg3 Rf4 Bb6 Qf7 Kd8 Be8 c7 Qf8 c8R Rf7 Rc5 Ra5 Rcc3 Rg5 Qh4 Rg8 Qe5 Kg2 Qe1 Qe3 Qeh8 Qd3 Rf1 h1Q Rg1+ Kh3 Rg7 Kh2 Rh7 Kg2 B6a7 Rf5 Rb7 Rf7 Qh4 Qa1 Qe1 Qa2 Nb3 Qa1 Bg1 Qa2 Nd4 Qa1 Qh4 Kf1 Qe5 Qa2 Qh1 Qd5 Qg3 Qc6 Qe5 Qca6 Qg3 Qa8 Qe1#
bq2QRqN/r4bq1/rb3R2/QR3R1n/B6N/3Nr3/k3nK2/NQr4N b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 d4 Kd7 h4 Kd6 g7 c5 b6 a5 b7 e5 h5 a4 h6 a3 b4 e4 b5 c4 h7 f3 f6 g4 f7 e3 b6 a2 Nh3 e2 Qb3 g3 Na3 g2 Kf2 e1R Nc2 g1R Qb4+ Kd7 d6 Kc6 d7 c3 Bb5+ Kd5 Ba4 Bc5 f8R Nf6 g8N Ra7 Nh6 Re3 Nf5 Rc1 Rf1 Nc6 b8R Bb7 Nh4 Ba8 b7 Nh5 Rf6 Bb6 Rb1 Qf8 d8N a1Q Ne6 Qg8 Rbf8 Ra6 Qa5+ Kc4 d5 Nd4 b8Q Ne2 d6 Qb2 Na1 c2 Rf5 Qbg7 d7 Ra7 d8Q Ra6 Rb4+ Kc3 Rg4+ Kb2 Rb4+ Ka2 Nc5 Ra7 Nd3 Ra6 Re1 Ra7 Rbb5 Ra6 Kf1 f2 Qe8 Bd4 R5f7 Ra7 Rbb7 Rd1 Qd6 c1Q Qde7 Qc8 Rb5 Qb8 Qeb4 Rc1 Rf4 Qh6 R4f7 Ra6 Rf6 Bb6 Rd1 Qb3 Re1 Rg8 h8N Rg7 Rd1 Qg8 Re1 Rga7 Rd1 Rc8 Rc1 Qhg5 Rcc5 Q5g7 Rcf5 Rc2 Ng5 Rc4 Ne4 Rcc7 Ng3 Rc1+ Qe1 Bd5 Nh1 Be6 Rg6 Bf7 Kg2 f1B+ Kf2 Bg2 Qeb4 Bgd5 Rgf6 Ba8 Qb1+
1n1r1R2/R1bk2r1/R5Qn/n3Q1B1/1rrRNQ2/5bQn/q3NnN1/2Q2K2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 e5 h4 c5 b4 a5 h5 g3 b6 a4 b7 e4 b5 g2 b6 c4 d6 c3 g6 e3 f6 c2 f7+ Kd7 g7 a3 h6 f3 d5 e2 h7 a2 Nh3 g1N Nf4 Nh6 g8Q Na6 b8Q Nb4 b7 Na6 Nc3 Ra7 Ng2 Bg7 f8R Qa5 Bg5 Be5 Qc1 Nh3 Qg6 Rg8 h8Q f2+ Kd2 f1N+ Ke1 Nd2 Qhf6 Qa3 Qf4 Nc4 Qg3 Qa4 Rhf1 Rg7 R1f6 Ra8 Re6 Na5 Qgf4 Ng1 Kf2 e1N Kf1 Nh3 Ne2 Nd3 Qc4 Ndf2 Qc3 Nb3 Qd1 c1R Qd2 Rc4 Q1c1 Bf4 Rff6 Kd8 d7 Be3 Qg3 Qa5 b8Q Bd4 Qbe5 Bb7 Qdf4 Bb6 Rd6 Kc7 d8R Rc8 Rfe6 Nb8 Rf8 Re8 Ref6 Kc8 Rd7 Bc7 d6 Bf3 Re6 Qa6 Ref6 Bb6 Ra7 Bc7 d7+ Kd8 Qcc3 Qa4 Rd1 a1R Qcc1 Rb1 Rd4 Qa2 Re6+ Re7 Rea6 Na5 Rf5 Rbb4 Rf8 Bd6 Ra8 Kc7 d8N Kd7 Nb7 Rd8 R8a7 Rg7 Qcd2 Bd5 Qc1 Bc7 Nd6 Bf3 Ne4+
q1Bb1K2/NBb5/3k2NQ/3qQBb1/BNR1bB1q/1r2b2r/2q3N1/nQ6 b - - 0 1 illegal: No possible last move, all moves rejected
1Nr2qQ1/b1R1rB2/n1nB4/Q1Nb1Q1B/1n3pQ1/1Q3q1B/7N/q2bk1K1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Ne7 b5 Qd8 Ra4 Ng8 Rb4 axb4 Kf2 Kd7 g4 Kd6 e4 Kc5 d4+ Kd6 b7 c5 g6 f5 g5 h5 g7 c4 b6 h4 g6 h3 Nc3 b3 Qg4 f3 Na4 h2 Bh3 c3 Nc5 f4 Ba3 Na6 b8N c2 b7 Ne7 g8Q c1Q g7 b2 Qf5 b1N e5+ Kc7 d6+ Kb6 d7 Ka5 e6 Nc3 d5 Na2 d6 Qa1 Qg4 Nc6 e7 Rh7 e8B N2b4 Bh5 Be7 Q8e6 Qf8 g8B Bd8 Qf6 Bb6 d8Q Re7 d7 Kb5 Qff5 Ba7 Qe8 Ka5 d8Q+ Kb5 Bh7 Kc4 Qa5 Kc3 B7g6 Kd2 Bf7 Be6 Qc8 Bb3 Qce6 Bc2 Qb3 Bd1 Kf1 f2 Kg2 Ke1 Nf3+ Ke2 Rf1 h1B+ Kh2 Bc2 Rc1 Bd1 Rc4 f1Q Rc3 Qe1 Rc4 Qd2 Kg1 Qd5 Nh2+ Ke1 Nd7 Qe4 b8Q Qf3 Rc1 Qfh8 Qbg8 Rc8 Nb8 Bg2 Bb2 Qg7 Be5 Qf8 Rc2 Qe2 Rc3 Bd5 Bd6 Qf3 Rc2 Nd4 Ne4 Rc3 Rc1 Rc8 Rc7 Nc6+ Nc5
1rB1rnk1/B1NQrn2/qN3K2/3p2R1/1Q1BN3/B1b1r3/2Qn1Qr1/6bQ b - - 0 1 legal: proof: f4 c5 e4 f5 exf5 h5 a4 b5 axb5 Qb6 g4 Qd8 b4 Nf6 d4 cxd4 g5 Nd5 f6 Kf7 Ra3 Ke6 f5+ Kd6 Rg3 Ne3 Rg2 Ng4 Rg3 Bb7 Rg2 Nh6 Rg4 Bd5 g6 Bf7 gxf7 hxg4 Be3 Ng8 Bg5 Nc6 Bc1 Nb8 Kd2 g5 Kd3 a5 Ke4 e5 h4 a4 c4 g3 c5+ Kc7 c6 Kd6 h5 g4 b6 d3 b7 a3 h6 a2 h7 a1B c7 d2 c8Q g2 b5 g3 b6 Bc3 Nh3 g1R Ba6 g2 Ba3+ Bb4 Nf4 Qe7 Ne6 Bh6 f8B Be3 f7 Nh6 Bg7 Qf6 f8N Ke7 Qcc2 Kf7 Rh5 Bc3 Nc7 d6 Kd5 e4 Rg5 Nd7 b8B Ra7 Qg4 d1R+ Nd2 Rb1 b7 Bc5 Qgd1 e3 Ne4 e2 Qd4 Qg6 f6 e1R Qda4 Rg8 h8Q Re3 Qd4 Rbe1 Qdd1 Ra8 Ba7 Re8 b8Q Bb6 Bc8 Bbd4 Nfe6 Nf8 Nf4 R1e2 Qdd3 Rb1 Qdd1 g1N Qb4 Nf3 Qh1 Nd2 Qh7 Ng4 Q7h3 Nh6 Qd7+ Re7 Bh8 Rg2 Bg7 Ne6 Bh8 Re8 Bg7 Kg8 f7+ Kh7 Be5 Nf8 Bf6 Bb6 Bd4 Bc5 Nd3 Qf6 Nb2 Qf1 Na4 Qa6 Qc4 Rb8 Qb4 Ng6 f8Q Bb6 Qf3 Kg8 Qf2 Nf7 Bg7 Bbd4 Nb6 Nf8 Qa2 Be5 Qc2 Bh2 Bd4+ Ng6 Kc6 d5 Kc5 Bg1 Kc6 Nh6 Kd6 Nf7+ Kc5 Nh8 Kd6 Re5 Rh5 R5e7 Rf5 Nf8 Rh5 Ne6 Ke5 Nf8+ Kf6 Nf7 Rg5+
n3N2B/1b3B2/n1Q2q1Q/2QQQpkr/1BK3nN/2Nrqr1r/r3R3/5B2 b - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 b5 f4 f5 a4 Bd6 b4 Be7 g5 Bf6 gxf6 exf4 axb5 h5 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 h4 Kf7 e4 Kg6 Ke2 a5 Kd3 c5 b6 a4 d6 f3 b5 f2 h5+ Kg5 d7 g3 f7 a3 f8Q a2 e5 a1Q b7 g6 b6 g2 h6 Nc6 b8N Qc7 d8Q+ Qe7 h7 Na5 b7 Nf6 e6 Nc4 Qd4 Ng4 Na6 Nb6 b8Q Bb7 Nc7 Ra2 Q1a4 Na8 Rh2 Qb2 Qdc4 Qbf6 Qc6 Qe8 Qd4 c4+ Kc3 Qee7 Ne8 Qc5 Qde5 Qe3+ Kb4 c3 d4 c2 Ba3 c1N d5 Nd3+ Kc4 Nc5 d6 Na6 d7 N8c7 d8Q Na8 Ne2 g1R e7 Rg3 Nf4 Rh3 Qec5 Rh5 Bb4 Rh3 Nc3 Rh5 Bg2 f1R Qdd5 Rf3 Bf1 Rhh3 Ng2 Rh5 Qg7 Rhh3 Nc7 Rd8 e8B Rd6 Qdf7 Rd3 h8B Nf2 Ne2 Kg4 Nc1 g5 Nh4 Kf4 Qfd7 g4 Bf7 g3 Qgf8 Kg4 Qdd5 Kf4 Ne2+ Kg4 Ng2 Rh5 Nc3 Kg5 Nh4 g2 Ne8 g1R Qbe5 Rgg3 Rg2 Ng4 Re2 Rh3 Qh6+
BB2B3/2n3B1/4b1RQ/1kbNr3/RBb1q2q/4nqn1/Q3bpR1/Q1KR4 b - - 0 1 legal: proof: c4 a5 g4 g5 f4 gxf4 h4 e5 a4 d5 cxd5 b5 axb5 Ra6 g5 Rb6 Na3 Rh6 Nc4 Rh5 g6 Rg5 hxg5 e4 Ne5 Be7 Nef3 exf3 Bh3 Bc5 Bf1 Bf8 d4 Kd7 Kd2 c5 b4 h5 e4 f5 b6 h4 b7 h3 b5 f2 b6 h2 e5 a4 e6+ Kd6 e7 f3 e8B c4 g7 f4 g6 a3 Bg2 f1B Ne2 f2 Rg1 h1N Bb2 a2 Nc3 f3 Kc1 Na6 b8Q+ Nc7 b7 Ne7 g8R Bd3 g7 f1B Qd2 f2 Qa8 Be6 b8B Bde2 Qh6 Ng3 Bf3 Bd3 Rg2 Nef5 Be4 Qh4 Qa6+ Ke7 d6+ Kd8 d5 Bde2 d7 Bc5 Ba3 Ne3 Bb4 Ke7 Qa4 Kd6 d8B Rh7 Bf6 Rh8 Rb1 a1Q Qa8 Qa7 Ra1 Qb7 Qa2 Rh7 Qb1 Qc6 Ra4 Qb7 Qa1 Qc6 Nd1 c3 Bf3 c2 Nc3 Bc4 Be4 Bfe2 Be5+ Ke7 d6+ Kd8 Bf3 Qce4 d7 Ke7 Bf6+ Kd6 Nd5 Kc6 Bfc3 Kb5 d8R+ Bd7 Qf6 Rh5 Qh6 Bc6 Rd6 Bd7 Rg6 Rf5 Rf8 Re5 g8Q Qf5 Rff6 Qfe4 Rc6 Be6 Bb2 Rh5 Bg7 Re5 Rd6+ Bd7 Nf6 Qa8 Ba7 Bcd3 Bb8 Qg4 Qga2 Bc4 Rd1 Qh4 Bf7 Bde6 Kb2 Bf1 Be4 Bfe2 Bf5 Qf3 Be4 Rg5 Ba8 Rd5 Ka3 Re5 Nd5 c1Q+ Q1b2 Qb1 Qba1 Qbe4 Kb2 Nh1 Kc1 Ng3 Be8+
3QR1N1/rb2r2n/BbN1pkb1/2N1pr2/6R1/6n1/n1Q1Q2K/RN2q1QN b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 f6 axb5 Bf5 e4 Bc8 e5 fxe5 g4 a5 b4 h5 gxh5 Bh3 b6 Bg4 b5 Be6 Ba3 Bc8 Bb4 axb4 h4 Kf7 d4 g5 f4 c5 Kf2 g4 Kg2 e6 f5 c4 d6 g3 d7 b3 d5 c3 h6 b2 h5 c2 d6 c1R f6 Ra6 h7 Ra5 b7 Qe7 d8N+ Ke8 f7+ Kd7 h6 Ra7 b6 Nf6 Nh3 Ng4 Rg1 Qh4 Ba6 Ra8 Nf2 Nc6 b8Q Na5 b7 Rc7 Qe2 Ra7 Nh1 Nf6 Nc6 Nb3 Qc2 Be7 f8R Bd8 Re8 Rf8 h8Q Nh7 Qg8 Rf5 Qg4 Nc1 Qge2 Qe4+ Kh3 g2 Kh2 Na2 Qa8 Nf6 h7 Qe3 h8N Nh7 b8Q Bb7 Nf7 Qc1 Nh6 Qe1 Rf1 g1N Rf4 Bc8 Qbb5 Bb7 Qe3 Ne2 Qg1 Ng3 Qbe2 Rc8 Rg4 Bb6 Nb4 Rc4 Nd3 Rcf4 Qb8 Rf7 Qa8 Re7 Qb8 Rf5 Nc5+ Kc6 d7 Kd5 Nd2 b1B Qc8 Kd6 d8N Rf6 Nc6 Rf1 Qa4 Bg6 Qc2 Rf5 Qd8+ Rd7 Qc8 Rc7 Nb1 Rd7 Nd8 Rdf7 Rg8 Ke7 Nc6+ Kf6 Re8 Rd7 Qd8+ Re7 Ng8+
k1qbQ1KN/BB3RQp/6np/q2r2r1/1B2BN1b/2N1r1n1/2B2b2/2Q2N2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 g4 exf4 b4 Nh6 Ra6 Nf5 Rh6 gxh6 g5 Ne7 h3 Bg4 hxg4 Ng8 Kf2 Kd7 Kf3 Kc8 Ke4 Kb7 Ke5 a5 d4 c5 e4 f5 Ke6 f3 Kf7 c4 e5 f2 e6 f4 b6 c3 b5 c2 g6 a4 e7 a3 e8B f3 d6 a2 g5 a1B g7 Ra3 d7 Ra6 g6 Bb4 d5 Ba3 d6 Ra7 Bd2 c1B Nc3 Ne7 g8Q Nbc6 g7 B3b2 Nge2 Kb8 b7 Na5 Ng3 Qc8 d8N Qc5 d7 Qd5+ Ne6 Nac6 d8N Nd4 Bc6 Ng6 Rh5 Ra6 Rf5 Ra3 Qc2 Qe5 Be4 Ne2 Nf4 Ra5 Be1 Be3 Qc1 Ra3 Qf8 Rg8 Bc2 Ka7 b8B+ Ka8 b6 Qa5 Ba7 Rb3 Bg2 f1Q Qe8 Qf2 Nf1 Ng3 Qe5 Rb5 Bh1 Re8 g8B Rd5 Qg7 Qh2 Rf6 f2 Bhe4 Qh3 Rf5 Re5 Rf6 Rg5 Rf5 Nh4 Kf8 Bd4 Nf7 Be3 Nh8 Ng6+ Kf7 Ba3 Rf6 Be7 Rf5 Bd8 Bd2 Nh4 Kf8 Bd4 Bf7 Qg4 Kg8 Ng6 Be8 Qh3 Rf7 Qc8 Bb5 B4f6 Ba6 Bfe7 Nd1 Bd4 Bb4 Bdc5 Nh2 f1R Nc3 Re1 Nf1 Bf2 Bb5 Kb7 Ba6+ Kc6 b7 Re3 b8Q Bf6 Bc4 Bfe7 Qbe5 Kb7 Ba6+ Ka8 Qe6 Rf5 Qee5 Bh4 Qe8 Rg5 Bb7+
2qQ2k1/4b1Q1/1Npr3b/b3nQ2/2N1pn1N/1RNN1R2/1KQ1bR2/1B2br2 b - - 0 1 illegal: No possible last move
4b2N/2N3N1/Nr4nb/QrQpB3/1b2BBqk/b4R2/B1QnBK1p/6r1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 exf5 g5 c4 g4 b4 g3 Ra3 Bg7 Rc3 dxc3 hxg3 Bd4 g4 Bg7 g5 Bf8 f4 Kf7 g4 e5 c5 h5 g6+ Kf6 g7 a5 g5+ Ke7 g6 Kf6 b6 a4 b5 e4 c6 h4 b7 d6 b6 c2 c7 h3 Qd5 a3 Nf3 a2 Nc3 a1B Qa5 e3 Ng5 e2 Ne6 h2 Nb5 Bd7 c8Q Ne7 g8B Nd5 g7 Rh4 Bh7 Qc7 g8B Na6 b8B Bb2 b7 Bh6 Ng7 Ndb4 Ba2 d5 Rg1 Qc5 Rg3 Qd4 Rf3 Be8 Be3 c1R+ Kf2 Ba3 Qc2 Qc4 Bc7 Qd4 b8N Nc5 Na6 Nb3 Qc3 Nc6 Be5+ Kf7 Nbc7 Ne7 f6 Rb1 f5 Rg4 Bd6 Rg1 Qc2 Qg4 Bef4 Bb5 Bde5 Rd8 Na8 Rb8 Bg6+ Kf8 f7 Nd2 Bh7 Be8 Bg6 R1b5 Bh7 Ng8 Bg6 Ke7 f8N R8b6 Bh7 Kd8 Ng6 Ne7 Nh8 Kd7 f6 Kd8 Be4 Ng6 Bb2 Kd7 Nh5 Ke6 f7 Rb8 f8Q R8b7 Qfb4 R7b6 Qbc4 Ke7 Bbe5 Ke6 Bb8 Ke7 Ng7 Kf6 Bfd6+ Kg5 Bf4+ Kh4 Bbe5 Nb3 N8c7 e1B+ Ke3 Beb4 Qc5 Nd2 Kf2 Rh1 Bfc4 Rg1 Be2
2q2QBr/1brk4/NNr5/Nnb3Rp/4Rp1r/3QQ3/QNR5/1nq2NK1 b - - 0 1 legal: proof: a4 b5 axb5 d5 f4 e5 g4 exf4 c4 Bc5 cxd5 Bf8 g5 h5 gxh6 Na6 h7 Nb8 Ra5 Bc5 Ra1 Nf6 Na3 Rg8 h8N Bf8 Ng6 Rh8 Nb1 Rh7 Nh8 Ng8 d4 Nf6 h4 Bg4 h5 Ng8 Bd2 Qe7 Bb4 Qd8 Ba3 Bc8 Be7 Rh6 Bg5 Rg6 Bh6 Rg2 Bg5 Rg4 h6 Rg3 h7 Rg2 Bh6 gxh6 Rh4 h5 Rh1 Rg7 Kf2 f5 e4 a5 b4 c5 d6 f3 b6 c4 d7+ Ke7 b5 c3 b7 a4 d5 f4 d6+ Ke6 e5 c2 b6 c1Q Qd4 a3 Ng6 a2 h8Q Qd2+ Ne2 Qh4+ Kg1 Ne7 d8N+ Kd7 e6+ Ke8 Ng3 Qb2 Nc6 Qe2 Qe3 Ng8 e7 Qd3 d7+ Kf7 e8R Qd8 Nge7 Na6 b8N Nf6 b7 Qa3 Rh2 Qc1 Na3 Ne4 Nc4 Ke6 Rc2 Nc7 N6a5 Nb5 Nb2 Rf7 Rb1 a1R Na6 Rh7 b8Q Bb7 Qhc3 Qc8 d8Q Ra4 Qdc7 Rc4 Qcd3 Rc6 Nd5+ Re7 Qcb6 Kd7 Q6a7 Nec3 Ra1 Rg7 Re4 Nb1 Raa4 Rf7 Re5 Bd6 Rae4 Bc5 Rg5 f2+ Kh2 Qc7 Qf8 Qc8 Bg2 f1R Bh1 Rg1 Nf1 Rg4 Bf3 Rh4+ Kg1 Re7 Bg4+ Kd6 Be6 Rb8 Bg8 Ra8 Qb8+ Kd7 Qe5 Rh7 Q5d4 Rh8 Qa4 Ra7 Qac4 Ba8 Qcb3 Rac7 Qa2 Bb7 Nb6#
K7/b7/NQ2bNQb/QN1R1Q1p/2rBbqQp/1B1B1r2/1b6/Nn3kr1 b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 a4 e5 axb5 Bf5 h4 gxh4 f4 Be6 b4 Qg5 f5 Qf4 g5 Qd4 g6 Bd7 Ra3 Qe4 Rf3 Bc8 Rf4 exf4 Ba3 Nc6 Bc1 Ne5 g7 Ng6 fxg6 Qe7 Bh3 Qf6 Bf1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 c5 b6 h5 b5 f3 b7 f6 b8Q+ Qc7 b6 c4 b7 c3 Be3 f2 Na3 c2 Nf3 c1B Ne1 a4 Nb5+ Kd7 d6 Kc6 d5+ Kd7 Bd4 a3 Nc2 a2 Na1 Ne7 g8Q Ra4 g7 Kd8 d7 Bh6 e3 Rh7 Bd3 f1B Bc2 Rc4 Qg4 Bh3 Qg6 Be6 Rd1 Qg3 Qf4 f5+ Ke5 Qh2 b8N Bb7 Kd6 Qg3 Qe5 f4 e4 f3 Qf4 f2 e5 f1R Qff5 Rg1 Na6 Qf4 Qgg4 Rh8 Qgf7 Rh7 g8B Rg7 Q7g6 Rf7 Nb3 a1B Rd2 Bb2 Na1 Rb4 Kc5 Rc4+ Kb6 Nc6 Rd3 Nb4 Ka7 Bc5+ Kb8 Ke7 d6+ Kf8 Rd2 Be4 Rd1 Nd5 Ka8 Ba7 Rd3 Rf6 Rd2 Bf7 e6 Nc3+ Qd5 Be8 d8Q Nb1 Qa5 Bf7 e7+ Ke8 Qb6 Rf5 Qa5 Kd7 e8N Be6 Rd3 Qd2 Qb6 Rf3 Qa5 Qf4 Rd2 Bd3 Qdf5 Kc6 d7 Be4 d8Q Rb3 Qff6 Rf3 Qdb6+ Kd5 Qff7 Rc6 Qff5+ Kc4 Bg7 Rc5+ Rd5 Rc7 Bd4 Rc5 Ba4 Kd3 Nf6 Ke2 Bc2 Rc4 Bh7 Bf7 Bg8 Rc6 Rc5 Kf1 Re5 Be6 Bf7 Bc8 Bfb3 Rc4+ Rd5 Be6 Bd3+
1r1QB1Bq/K1QQ1r2/p5k1/3Nrb1N/7B/1rRBp1n1/3q4/1B1NbQ1r b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 f5 Qb6 Qe2 Qc7 Qd1 Qd8 h4 Nh6 g4 Kf7 b4 Ng8 h5 Ke8 Ra3 Nc6 Rf3 Ne5 Rf4 gxf4 g5 Ng6 hxg6 Qc7 Rh2 Qb6 Rh1 Qd8 Kf2 d5 c4 h5 b6 e5 g7 Kf7 b7 a6 b8Q h4 b5 d3 b6 d4 b7 d2 c5 h3 g6+ Ke8 c6 d3 f7+ Ke7 c7 Kf6 Ne2 f3 Ke3 e4 Ng3 h2 Nh5+ Kg5 f6 f2 Nc3 Bd7 Kd4 Qe7 c8B Bf5 Qc7 Qd8+ Bd7 Bh3 b8N Ne7 Kc5 Rh7 Kb6 Be6 g8B Rh8 g7 Nf5 Nc6 Bb4 f8Q Rb8+ Ka7 Ng3 f7 Kg6 Be8 Bf5 Be2 Ba5 Nb4 f1R Nbd5 Rb3 Ba3 e3 Be7 Rf3 Bh4 Qf6 Qf1 d1R Qfd6 d2 Qdd7 Ra1 Bd3 d1Q Rg1 Qd2 Nd1 h1R Rg2 Bc3 Rf2 Ra5 f8Q+ Kh6 Bh7 Rf4 Ne7 Re5 Nd5 Rg8 Qfe7 Rf8 g8B Qh8 Rg2 Rfb4 Rf2 Rf7 Qed8 Rb8 Bg6 Be6 Bge4 Bf5 Bb1 Kg6 Bed3 Qc1 Rg2 Be1 Rc2 Qd2 Rc3
R4B1n/k1NNbNK1/r7/2N1p3/1Bb1p1Bq/1qQp1n1N/2b2r2/1QB2Q2 b - - 0 1 legal: proof: e4 c5 g4 b5 a4 h5 axb5 Rh7 gxh5 Rh8 d4 cxd4 b4 d5 Bd2 f5 Bc1 d3 Ra6 d4 Re6 Qd5 exd5 Na6 Re5 Nb8 Re4 fxe4 Kd2 Kd8 h4 Kc7 c4 Kb7 f4 a5 d6 g5 b6 g4 h6 g3 d7 g2 d8N+ Ka6 f5 e6 b7 a4 b5+ Kb6 c5+ Ka7 h5 a3 c6 a2 h7 a1Q b6+ Ka6 c7 Be7 f6 Ba3 h6 Ne7 f7 Rf8 h8N Bc5 h7 Qa5+ Nc3 Ra7 Be2 Qb5 Nd5 Qb1 Qf1 Nd7 b8Q Qa1 b7 Nf5 Bg4 Be7 Nh3 Ne5 Rg1 Bd7 c8Q Qa3 Qc3 Ng6 Nc7+ Kb6 Rh1 g1Q Rh2 Nfh4 Rf2 Re8 f8B Bb5 Nhf7 Ra6 h8B Qg3 Be5 Bc4 Bd6 Nh8 Bb4 Qa4 Rf5 Qa3 Ra5 e5 Nde6 Rd8 Nc5 Qb3 Ra4 Qf4+ Ke1 Nf3+ Kf2 Qf6 Kg3 d2 Ra2 d1B Ra3 Ng5 Kh4 d3 Kh5 Bc2 Ra5 Qf4 Kh6 Nf3+ Kg7 Rd7 Qa8 Qg3 b8N Qh4 Qd5 Rd8 Nbd7+ Ka7 Qc6 Rb8 Qa4 Rb6 Qaa1 Rf6 Ra2 Ng5 Qb1 Rf2 Ra5 Nf3 Rb5 Ng5 Rb8 Nf3 Ra8#
1R2n3/5B1p/B4QRR/2B2KNQ/bk1q1R1b/2RQ1pp1/Q1qn2n1/rr6 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 Ba6 axb5 Bb7 f4 Bc8 Nc3 e6 Ne4 e5 Ng3 exf4 h4 fxg3 hxg5 Ba3 Qb3 Bb4 Qd1 Bf8 b4 Ke7 e4 Kd6 Ke2 c5 Ke3 f5 Kf4 a5 d4 a4 e5+ Kd7 d6 a3 d5 a2 e6+ Ke8 e7 Kd7 b6 c4 b7 c3 b5 c2 g6 Qb6 e8B+ Kd8 g5 Na6 g7 Be6 g6 Qa5 b6 Bc8 d7 Ke7 d6+ Ke6 d8Q Ra7 d7 Be7 Nh3 Nh6 g8R Qc5 g7 Ng4 Be3 Nc7 Rc1 a1Q b8Q Qac3 b7 Ra1 Rf8 Qc6 Ba7 Ne3 g8R Qd3 Qd2 Kd5 Rg6 Kc4 Qa8 Qb6 Qe2 Ng2+ Ke5 f4 Qd1 Bh4 Ng5 Kc3 Qg4 f3 Rf4 Qc4 Bf7 Qb1 b8Q Qd4+ Kf5 Bb7 Qbc8 Bc6 Qf6 Rf8 Qa6 Rb8 d8R Ne8 Qe2 Qa2 Rc8 Rbb1 Bb6 Kb4 Rb8 Qb2 Qa2 Ba4 Qe3 Qc3 Ba6 Qc7 Rcd1 c1N Qd3 Nb3 Rc1 Nd2 Rh2 Qc3 Rc2 Qb3 Rc3 Qd1 Ne4 Bg5 Rhh6 Qc1 Qh5 Bh4 Ng5 Qc2 Bc5+
1B1r3k/2q2b1p/q2pB1BR/q3QbB1/1n1rQ1Q1/1QRNp3/1K5R/1B4n1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 h4 Qb6 g4 Bg7 f5 Nc6 Nc3 Ne5 Nce2 Bh6 Nf4 gxf4 g5 Nc6 g6 Bg5 hxg5 Nb8 Rh2 Qc7 Rh1 Qd8 Kd2 Kf8 b4 e5 c4 a5 Kc2 d3+ Kb2 a4 g7+ Kf7 b6 f3 b5 e4 c5 d2 b7 f2 b6 d6 g6+ Ke8 f7+ Ke7 f8Q+ Kd7 f6 Ke6 f7 Kf6 c6 Be6 c7 Bc8 Ra2 Qe8 Bd3 f1Q Bb1 Bf5 c8R Na6 b8B Nb4 b7 Ne7 g8B Nec6 g7 Qd8 Qe8 Qc7 Nh3 Nd4 Qg4 d1B Nf2 Nf3 Nd3 Bb3 f8Q+ Bf7 Bg5+ Kg6 Rh2 e3 Qee4 Ng1 Qfe7 Ra7 Q7e5 a3+ Ka1 Ra6 Rh5 Ra8 Rah2 a2 Kb2 Ra5 R5h4 Rd5 Rh5 Rd4 R5h3 Bb3 Be6 Rd8 g8B Bc4 Qeg3 Kg7 Bgf7 Bb3 Rh6 Kh8 Bg6 Bd5 Nf4 Qa6 Nd3 Qf7 Rc3 a1Q+ Kc1 Q1a5 Kb2 Qfc7 Qge5+ Qg7 Bc7 Bb3 b8Q Bc4 Qbb5 Bd5 Bb8 Ba2 Qeg3 Qgc7 Qa4 Bc4 Qb3 Bd5 Bd7 Bg8 Be6 Bf7 Qge5+
q2q1Br1/1Bqp4/R1n2bNQ/R1QQRQ1B/8/2pK3p/b1r4k/2b1BQ2 b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 h4 gxh4 c4 Bg7 a4 Ne7 axb5 Ng8 b6 Bh6 b7 Bf8 e4 f5 e6 Bd6 e5 Ne7 b5 Ng8 Nd2 Nc6 Ne4 Nd4 b6 Nb5 cxb5 fxe4 Ra6 Bc5 Ra1 Bf8 Kd2 Ke7 b8Q c5 g4 h5 f4 a5 f5 h3 g5 h2 f6+ Ke8 e7 Kf7 e8B+ Ke6 b7 Kf5 g6 Kf4 e6+ Qc7 f7 Kg3 g7 e3+ Kd3 a4 e7 e2 b6 e1Q Qa7 a3 b8Q h4 b7 h3 Bd2 a2 Nf3 Qe6 Ne5 Qec6 Bg2 Qd8 Ng6+ Qcc7 Qf1 Rh4 Qb6 Rc4 Q8a7 Rc2 b8Q Bb7 Qaa6 Bd5 Be1+ Rf2 Rg1 h1Q Q8a7 Rb8 Qf6 Kh2 Qf5 Rc2 Qaf6 Be6 Bb7 Qhc6 Rg5 c4+ Ke3 Qa4 Qac5 Qa8 Rh5 c3 Kd3 Rc8 Q6g5 Bd5 Qh6 Rb8 Rb1 a1B Rb6 Bb2 Ra6 Bc1 Rg5 Ba2 Rh5 Nf6 g8Q Bg7 f8B Ng4 Qgd5 Bf6 Bf7 Rc8 e8R Rb8 Re4 Rc8 Rea4 Rb8 R4a5 Ne5+ Ke4 Nc6 Kd3 Re2 Qf5f3 Rg2 Re5 Rc2 Qf5 Qe7 Bg7 Rg8 Bf8 Qee8 Ne7 Qec8 Bh5 Q8d8 Ng6
3N4/p1nR2p1/1N1p2Nk/n3bBq1/K7/1Q4Q1/R2Np1Rn/2RrQbRb b - - 0 1 legal: proof: g4 f5 f4 c5 a4 b5 axb5 h6 gxf5 Qb6 f6 Qc7 f7+ Kd8 d4 cxd4 e4 Na6 Bd2 Rb8 Be3 Rb6 e5 Rf6 exf6 Qa5+ Kf2 Kc7 f5 Kd6 Bg5 Qd8 Ke1 hxg5 Kd2 Ke5 b4 Kf4 h4 e5 c4 e4 Kc2 g4 Kb3 d3 b6 g3 b5 e3 b7 e2 b8Q+ Qc7 b6 g2 b7 d2 h5 Kg5 c5 Nb4 c6 Na2 h6 Ne7 h7 Nc3 Qe1 Qd6 c7 Nd1 Nf3+ Kf4 Ng5 g1N Bh3 Ng6 Ra2 Qb6+ Ka4 Bb4 f8R Bc3 f7 Qe3 f6 Ne7 Bf5 Nd5 Rd8 Nf3 f8N Be5 f7 Nh2 Rg1 d6 Nd7 Qc5 f8N N1e3 Nb6 Nc4 Rd7 Na5 Nf7 Qc1 Nd8 d1B+ Kb5 Bb3 Nd2 Bc4+ Ka4 Bd3 Qa8 Be4 b8Q Bh1 Qc6 Bb7 c8R Nc7 Qc3 Bbg2 Ng6+ Kg5 Qcg3+ Kh6 Qb7 Bf1 Qbf3 Nb5 Qb3 Qc5 Rc6 Nc7 Rg2 Qd5 Rc1 Rf8 Be6 Rf3 Bf5 Rd3 Rg1 Qg8 h8R+ Qh7 Ne4 Rd1 Rf8 Qg8 Nd2 Qe6 Rf6 Qd5 Re6 Bc3 Re4 Be5 Rf4 Qc5 Rf2 Qe3 Rfg2 Qf4+ Ndc4 Qg5 Nd2
n1N5/1Bp1r3/1bB3rp/2k1N3/2QNqnqp/BQ2p1R1/1Q2N2q/K5NQ b - - 0 1 illegal: No possible last move
6BN/Br1r2nN/n2Bb3/NB1b4/3KR3/q3Q3/NN1nq1k1/1rrqBN2 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 b4 h5 Ra3 f5 Rc3 Bd6 Rc4 Be5 Rg4 hxg4 Qc2 f2+ Kd1 f4 Qb3 f3 Kc2 Bf4 gxf4 Nh6 Kb2 Rf8 Qd1 Rh8 Kc2 Ng8 Kd3 Ke7 e4 Kf6 h4 c5 b6 a5 f5 Ke5 b5 Kf4 f6 Kg3 d6 g5 e5 c4+ Kd4 c3 f7 a4 f8N c2 b7 a3 e6 a2 b6 a1N d7 Rh6 h5 Qc7 d8N Ra7 e7 Ra6 e8B Qc6 Nde6 Ra8 Rh4 Rh7 h6 Ra2 Nc5 Bf5 Bb5 f1B Bf7 f2 Na4 Be6 Qe1 Qf3 Ne2+ Kg2 Nb2 g3 Nbc3 Ne7 Bg8 Na6 b8B g4 b7 Ra3 d3 Rb3 Bd2 c1R Bd6 Rg7 b8B Nf5+ Ke5 Rf7 h7 Rd7 h8N Ng7 d4 Rb4 d5 Nb3 Na2 Qd3 Bh6 Nd2 Ba7 Qa3 Nh7 Rb3 Kd4 Rb1 Nec1 Bc4 Qe3 f1Q Ne2 Rc1 Bhf4 Rb1 Bb4 Rc1 d6 Bcd5 Nec3 Qe2 Ncd1 Rbc3 Be5 Rcc7 Ba5 Rb7 Bb4 Re7 d7 Rf7 d8N Rfd7 Nc6 Kf1 Rh5 Nb1 Ndc3 g2 Ba4 g1Q Beb8 g3 Bb5 g2 Ne4 Rc3 Na5 Qh1 Re5 g1R Bc7 Kg2 Bcd6 Rf1 Nd2 Rb3 Nd3 Rc1 Re4 Qhd1 Nf1 Rb2 Be1 Nd2 Bdb8 Rb3 Bd6 Rbb1 Nb2
Rn1N2B1/5p1n/n2BNNk1/1q4B1/n1n1Q1r1/2rB2N1/4bKBN/b3N2r b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Ne7 b5 Qd8 Ra4 Ng8 Rb4 axb4 g4 h5 e4 c5 d4 b3 g6 c4 g7 f3 d6 c3 d5 h4 e5 h3 b7 c2 b6 b2 e6 h2 e7 Ra2 g5 Nh6 g8B Ra7 g6 Ra4 g7 Bf5 Na3 b1N Qd3 Qc7 Bg2 Be6 Kf2 Rh4 Bg5 c1N Nc2 Nc3 Bh7 Rg4 g8B Qc6 Ne1 Qb5 Qe4 N1a2 Bg6 Kd7 e8N Na4 Ng7 Nb4 Nf5 Bg7 B6h7 Ke8 d7+ Kf8 d8N Ba1 d6 N4a6 d7 Bc4 Bg6 Bf1 B6h7 Be2 Bg6 Nc6 b8B Rh7 Be5 Ncb8 b7 Rg7 B6h7 Rg6 Bef4 Re6 Bd6+ Re7 Ke3 f2 Ngf3 f1N+ Kf2 Nd2 Rg1 h1R Nh2 Nc6 b8N Nc4 Ne3 Kg7 Ne6+ Kh8 d8N Rc7 Nd7 Ncb8 Nf6 Rc6 Bg6 Rc7 B8h7 Ng8 Nf5 Rc6 Nh5 Nf6 Bg8 Nh7 Nf6 Na3 Nc2 Rc3 Rc1 Qd7 Ne1 Nc4 Rb1 Qc6 Rb7 Qd7 Ra7 Qb5 Ra8 Ne5 Nh4 Qd7 Qe3 Nc4 Bd3 Qb7 Qe4 Qb5 Nc7 Kg7 Nf5+ Kg6 Nce6 Qe5 Nd7 Qa5 Nf6 Qb5 Ng3+
N1q2r1B/1q2QN2/1B1n2kr/1BqBKb2/2p5/b1NR3N/1NbB2n1/1N1q4 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 g5 g4 h6 f4 gxf4 g5 h5 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 Kf2 Kf7 h4 c5 d4 a5 h5 e5 f6 g3+ Kf3 g2 Ke4 a4 g6+ Ke8 f7+ Ke7 h6 Kf6 g7 f3 h7 a3 b6 a2 b5 a1Q d6 f2 b7 Qa7 d5 Qe8 b6 Kg6 d7 Bd6 d8B Qb5 f8N+ Kf7 Nh3 g1Q Ne6 Qe8 Nef4 Qa2 Bd2 Nh6 Qe1 Qb2 Nd3 Na6 b8N Nc7 g8B+ Kg6 b7 Nf7 Na6 Ne6 b8N Qb7 Bb6 Nf4 Nc6 Ng2 Ncb4 Be6 Qe3 Qec8 Nc7 Be7 Be2 f1B Na2 Bd6 Nac3 Bf5+ Kf3 Be7 Nb2 Nd6 Bb5 c4 Qe1 Ra6 Na8 Qgc5 Be6 Rf8 h8B e4+ Kg3 Nf7 d6 e3 d7 e2 d8N Nd6 Bd5 Bc2 Nf7 Bf5 Qf2 e1Q Rh2 Qd1 Qe1 B1d3 Qe3 Ne1 Kf4 Bc2 Rf2 Ng2+ Ke5 Bd8 Rf3 Bc7 Ba7 Ba5 Qe1 Bb4 Rd3 Ba3 Bb6 Ne4 Ba5 Kh7 Qh4+ Rh6 Qg5 Nd6 Qe7 Kg6 Bb6
3rR3/1q3nNb/1N4kn/2b1BqBn/1R1RNB1q/ppK3R1/R5q1/1B2B3 b - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 f6 a4 f5 exf5 c6 b4 bxa4 b5 c5 Qg4 Rh7 Qd4 Rh8 Qb4 cxb4 d4 a5 c4 d5 b6 Ra7 c5 Rd7 Bd2 Rd6 Bc1 Rg6 c6 Rg3 Bg5 Rc3 Bc1 Rc5 dxc5 Qc7 Ba6 Qd7 Bf1 Qd8 Kd2 Kf7 h4 e5 f4 g5 b7 e4 h6 d4 f6 d3 f5 a3 h5 g4 h7 a4 h6 a2 c7 b3 c6 e3+ Kc3 g3 Nd2 g2 Ngf3 g1N Ne4 e2 Rh3 a3 Bg5 d2 Nh4 d1Q Rg3 Na6 b8R Ne7 Rb4 Be6 c8R Q1d5 c7 Q8d6 Re8 Nh3 c8N Qd7 Nb6 Q7b7 Rd1 Qdd7 Rdd4 Nc7 Bg2 Rg8 h8R Nf4 h7 Nh5 Bf4 Bc4 Bg5 Ne6 Bf4 Rg5 Rg8 Ba6 h8B Nd8 Bg7 Qdd5 Bh6 Rg6 Bhg5 Bd3 Bf1 Qe6 Rg2 e1Q+ Rd2 Bb1 Bd3 Qh1 Rf2 a1Q+ Rb2 Ba2 Bb1 Qg2 Be5 Qed7 Bgf4 Rh6 Rg3 Ng8 Bg5 Rg6 Bgf4 Nh6 Bg5 Kg8 f7+ Kh7 f6 Bc5 f8B Rg8 f7 Qf5 Bfd6 Rh8 f8B Ndf7 Bef4 Rg8 Bde5 Rh8 Bc2 Qah1 Bfd6 Bb1 Ra2 Qhh2 Bd2 Qhh3 Be1 Qhg4 Bef4 Kg7 Bde5+ Kh7 Ng6 Qh4 Ne7 Rg8 Bd1 Bd3 Bc2 Rf8 Bb1 Rh8 Nc6 Kg6 Nd8 Rf8 Ne6 Rg8 Re7 Rd8 Re8 Qf6 Bd6 Kh7 Nd2 Bg6 Ne4 Qf5 Nf8+ Kg7 Bb8 Bh7 Ne6+ Kg6 Ng7 Qbd7 Bbd6 Qb7 Bde5
q1N2q1R/3NN3/q7/1bb1QNq1/1qQrNqk1/2B2R2/Qn3K1b/r5NQ b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Ra5 f4 Bh3 Nc6 Ra4 Nce7 Ra1 Nf5 gxf5 Nh6 Bg4 hxg4 Qc2 Ng8 Qa4 Kd7 Qd1 Ke8 h4 Kd7 e4 c5 b4 a5 d4 g5 h5 a4 b6 c4 b7 a3 b8N+ Ke7 e5 a2 b5 g3 e6 Kf6 h6 g4 d6 Kg5 d7 c3 e7 c2 e8N g2 f6 g3 h7 Qe7+ Qe2 Bh6 d8N Ra5 d5 Kg4 f7 Bf8 b6 Ba6 d6 Nh6 b7 Bb5 d7 Nf5 Nc3 Qb4 Bd2 Ne3 Ne6 Bc5 f8N Nc4 d8Q Nb2 Qc4 f2+ Ke2 c1Q Nfd7 Ra3 Nd4 f3+ Ke3 f1Q Nd6 f2 Qa5 Rf8 h8Q Rd8 Nc8 Ra4 Rb1 a1Q Nc6 Qa2 b8Q Qaa3 Nf3 g1Q N6e7 g2 Qbe5 Qh2 Qa6 g1B Qa5 Qa2 Ne4 Qg3 Rh3 Bh2 Qa7 Qh4 Ng1 Qf6 Qa6 Qf8 Rf3 Qg2 Qhh6 f1Q Qhc6 Qa1 Qa2 Qcc4 Bc3 Qd5 Qh6 Qa8 Qac6 Ra7 Qcd5 Qg3 Qdc4 Qc1+ Ke2 Qg5 Ndf5 Q3f4 Rbf1 Ra4 Rh3 Qa6 Rff3 Qa8 Qc6 Ra6 Rh8 Ra3 Ndb6 Rd4 Nd7 Ra5 Kf2 Ra7 Qb1 Qa6 Qh6 Q6b7 Qh7 Ra1 Qba2 Qba6 Kg2 Bg3 Qh1 Bh2 Kf2
b4r2/1kBn4/1b6/1rqqBN2/Kn4B1/p1N2Q2/1NN2rQ1/NNn1BRb1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 g5 g4 h6 f4 gxf4 g5 h5 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 h4 Kd7 d4 c5 Kd2 Kc7 Kc2 e5 Kb3 a5 g6 f3 g7 c4+ Ka4 c3 b6+ Kb7 d6 e4 h5 c2 f6 f2 d7 e3 d5 e2 d6 e1N b5 g3 f7 g2 h6 Ne7 g8N Nbc6 h7 Bh6 f8Q Nb8 Ne2 g1Q Qd5+ Nbc6 Qg2 Bg5 Nec3 Nd3 Bd2 c1B Nh6 Qc7 d8B Nb4 d7 Nd3 Be1 Nf4 Nf5 Rb8 Be2 f1R Bg4 Rg8 h8B Rf2 Be5 Qd6 Bc7 Nd3 d8N+ Ka8 Nb7 Ncb4 Qf7 Nec6 Nc5 Bd8 Nb3 Qd5 Na1 Rf8 b7+ Ka7 Qh5 Be3 b6+ Ka6 Qhh3 Nc1 Qhf3 Be6 Nd6 Bf5 Nc4 Be4 Nb2 Bc5 Bh2 Ne5 Bg3 Rc8 b8N+ Kb7 Nc6 Rb8 Ne7 Nd7 Nf5 Be3 Bge5 Bc5 Kb5 a4 Ka5 a3 Ka4 Qf1 Rg1 Qfc4 Rf1 Be3 Bf4 Qcc5 Bce5 Kc6 b7 Bb6 Bh2 Rbc8 b8N+ Kb7 Nc6 Rb8 Ncd4 Kc8 Ncb5 Qdc4 Qgg3 Ba5 Qd1 Rg2 Bf4 Bg1 Qdf3 Rf2 Qh3 Ba8 Qhg2 Q4d5 N5c3 Rb5 Bc7 Kb7 Bhe5 Bb6 Ndc2
8/N2N3R/qr1rR1KN/N2q2BQ/1pn1n3/1nR2b1b/bN1k1R2/Nq3Q2 b - - 0 1 illegal: No possible last move
2N1b3/1k2bN1R/5rb1/Qq1QNnb1/1B4K1/2qB1p2/2BN1rB1/Bq2b2B b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 a4 e5 axb5 e4 h4 Ba6 f4 exf3 h5 Nd7 Ra4 Bc8 Rf4 gxf4 b4 Ne5 g5 Ng6 hxg6 Bg7 Na3 Bh6 Nb1 Bf8 Kf2 Kd7 e4 c5 d4 Kc7 b6+ Kb7 b5 f5 e5 a5 g7 h5 e6 a4 e7 a3 e8B h4 d6 c4 d7 a2 d5 a1B g6 c3 d6 c2 Ba3 c1B Bd3 h3 Bb4 h2 Nd2 Qf6 d8N+ Kb8 b7 Rh4 d7 Rh3 Nf7 Ra2 d8Q Bc3 Qa5 Nh6 g8B Bd7 g7 Be7 Bh7 Rg3 g8B Rg6 Bc2 Qe5 Bd3 Rf6 Qb3 Bc6 Qd5 Qc7 Bd7 Qc8 Be6 Be8 Bd7 Qc4 Bc6 Rc2 Ne2 Ra2 Ng3 Qb3 Ne4 Qb2 Rf1 h1Q Ned6 Qb1 Rd1 Qh3 Nc8 Rc2 Rh1 Ra2 Ke1 f2+ Ke2 f3+ Ke3 f1Q Kf4 f2 Kg5 f4 Bhe4 Ba1 Bg2 Bd4 Bgh7 Nf5 Bc2 Qhb3 Kg4 Bc3 Bg6 Qe1 Rh7 f1B Bh1 Qe3 Bd3 Qb6 Bg2 Kc7 b8N Qc4 Bc2 Bd3 Nd7 Qc5 Nde5 Kb8 Ne4 Be1 Nd2 Qc3 Bh1 Qa6 b6 Qb5 b7 Rb2 Qc4 Ra2 Bcg2 f3 Qd5 Be4 Ndc4 Bg5 Bd3 Rf2 Nd2 Rb6 Bc2 Kc7 Bd3 Qbc6 b8B+ Kb7 Ba7 Ra6 Bd4 Rb6 Qd8 Qb5 Bc2 Rf6 Qd5+ Qcc6 Ba1 Bd3 Qd6 Qc3 Qd5+ Rc6 Bd6 Ng3 Qb3 Rb6 Bb4 Rf6 Bf5 Be4 Be6 Bg6 Bc4 Nf5 B4d3 Nd4 Qba2 Nf5 Qd5+
N1n3k1/QR1Qnqq1/1b2N3/Q1Q2Q1n/1NrBq3/1K1N2r1/1pp1b3/2R3Q1 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Rh7 Bh3 Bh6 fxg5 Rh8 g6 Bg7 g5 Bf8 Bg4 hxg4 a4 c5 h4 b5 d4 e5 Kd2 g3 Kc2 c4 h5 g2 f6 e4 d6 e3 h6 e2 a5 e1Q a6 c3 h7 Nd7 g7 Kf7 g6+ Ke6 a7 Ne7 g8Q+ Kf5 f7 Ke6 d5+ Kf6 g7 Ng6 Nh3 g1N Na3 Qe5 Rb1 Ne2 Nf4 Qde8 Be3 Nb6 d7 Ba6 d8Q+ Ne7 d6 Nc8 d7 Ng3 Nd3 Nh5 Qa5 Qd4 d8N b3+ Kc1 b2+ Kc2 b4 Kb3 Rb8 a8N Rb6 Rg1 Rc6 Ne6 Rc4 Nc2 Qed7 Rc1 Qe5 Bd4 b1Q+ Nb2 Qa1 Nd3 Qd5 Re1 Kg6 Qf3 Qee4 Qf5+ Kh6 Rb1 Qd7 Rec1 Qdb7 Ne3 c2 Nd5 Qb2+ Ka4 b3+ N5b4 Nc6 Qfc5 Bd6 f8Q N6e7 Qff5 Bc7 Qe8 Rg8 Qa7 Bb6 Qd7 Qc3 Qfc5 Kg6 h8Q Kf7 Qh7 b2 Ra1 Re8 Qg6+ Kg8 Qgf5 Rf8 Ra3 Rf6 Rb3 Rg6 Be3 Qf6 Bd4 Qf7 Ka3 Rg3 Ka2 Qg4 Ka3 Qbe4 Ka2 Qgg6 Ka3 Kh7 g8Q+ Kh6 Ng5 Rg2 Rb1 Bd8 Nf2 Rc3 Ne6 Be2 Nc6 Rc4 Rb7 Bb6 Nb4 Qgh7 Qgg4 Qhg7 Kb3 Rg1 Nfd3 Rg2 Qf1 Kh7 Qg1 Rg3 Qgf5+ Kg8 Rc1
k6Q/1R5Q/1rq1NRr1/1pRN1K2/N1nNRbn1/1R2pq2/1n2B3/1r2Rb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h6 g4 Nd7 g6 Nb8 g7 Ra5 Na3 Ra7 Nb1 Ra8 g5 Bd7 g6 Qc8 Bb2 Qd8 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Ke3 e5 Ke4 c5 d4 Kc7 a4 b5 h4 Kb7 h5 b3 f6 g4 f7 b2 a5 c4 h6 c3 d6 c2 a6+ Ka7 h7 c1R d7 g3 d5 g2 d6 Qh4+ Kf5 e4 Be2 e3 Qd3 Qb4 Ra3 Qb3 Nf3 g1Q Nc3 b1N Nd5 Qa2 Rb3 Qa4 Nd4 Qg3 Re1 Nf6 g8R Nd2 Rg7 Rg8 h8Q Ng4 Qe4 Bb7 d8R Nd7 Rc8 Nb6 d7 Nbc4 d8N Rb8 N8e6 Bd6 f8R Nb2 Rc5 Qc4 Rf6 Ka8 a7 Bf4 Rd7 Qf3 g7 Bc8 Rb7 Rb1 Qd3 Qc1 Qc2 Ndc4 Qe4 Rd8 g8R Rd6 Re8 Bd7 Qe5 Rb6 Qc7 Bc6 Qch7 Qc3 Ree7 Rg8 Nd8 Rg6 Re4 Bd7+ N8e6+ Bc8 Rcc7 Qb4 Rc6 Qd6 Rc5 Qc6 Nc3 Nge5 Na4 Nd7 Nf8 Nde5+ Re6 Rg5+ Kf6 Bd7 Rd6 Bh3 Re6 Rg4 Kf5 Bf1 Rf6 Rg8 Nfe6 Ng4 Rbf7 Qc7 Rg7 Kb7 a8N Qd7 Rgf7 Rg6 Nc7 Qe8 Nd5+ Ka8 Rb7 Qc8 Q8g7 Qc6 Qgh8+
qqB5/B2bbpB1/4k1r1/1BpnN3/Rr3nN1/bN6/Q2Q1BB1/NK2n3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 hxg5 exf4 b4 Nd7 e4 Nb8 Ra3 Na6 Rd3 Nb8 Re3 fxe3 d4 Kd7 g4 a5 b6 h5 b5 c5 b7 e2 Kd2 e1Q+ Kc2 h4 d6 a4 d5 a3 b6 a2 e5 a1B e6+ Ke8 e7 Kd7 g6 h3 g5 h2 g7 Bf6 g6 Rh3 Qe2 Bh4 Na3 Bg3 Bh6 Nc6 b8N+ Ke8 b7 Na7 Nc6 Kd7 b8B Qc7 Bg2 Ba6 e8B+ Kc8 d7+ Kb7 d8Q Bb5 d6 Nf6 g8B Qd2+ Kb1 Be5 d7 Nd5 g7 Be7 Bh7 Bb2 g8N Nf4 Bg7 Rb3 Nf3 Rb4 Nfe5 Nc8 Nh6 Ra6 Nc2 Nb6 Ba7 Nbd5 N6d4 Ba3+ Nb3 Qb8 Na1 Rg6 Nhg4 Qc3 Rd1 h1N Rd4 Qf3 Qa2 Nf2 Qa5 Ba4 d8B Kc8 Bb5 N2d3 Qd2 Ne1 Re4 Bf8 Bh4 Be7 Qa6+ Kd8 Bf2 Kc7 Qa5+ Kd6 Qa2 Ke6 Qd8 Ne3 Qdd2 Ned5 Rc4 Rg5 Bd3 Rg6 Ba6 Bd7 Bc8 Rb5 Ra4 Rb4 Bh3 Qh1 Bg2 Qh8 Bb5 Qa8 Bca6 Qhb8 Bc8
4bN2/1R2QBQ1/1R3n1N/pRQn1R2/1q1r3b/k1n4K/1p2n1Q1/R1rr1R2 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 d4 b4 d3 cxd3 Nh6 d4 Ng8 d5 Rh7 Bg2 Rh6 Bf1 Rh8 a4 Kf7 a5 Ke8 b5 Be6 b6 Bc8 Bb2 Nd7 Bc3 axb6 a6 Nb8 Ba5 bxa5 h4 Kd7 d4 Kd6 f4 e5 Kf2 c5 Kg3 g5 h6 b5 h5 e4 h7 e3 h6 g4 a7 c4 f6 c3 f7 e2 f5 e1R f6 b4 Nf3 b3 Qc2 b2 Rh5 Re8 Nbd2 Be7 f8R Qb6 f7 Bg5 Nb3 Bf5 Bc4 Re4 Nh4 Qb7 Rb1 Bd7 Ng6 Kc7 d6+ Kc6 d5+ Kb6 Nd4 Kc5 Nf5 Be8 d7 Kb4 d8Q Bc6 d6 Ba4 d7 Ka3 Qe7+ Qb4 Kh2 Na6 Rb8 Re3 d8R Rg3 f8R Nc7 Rd6 Be8 Rb7 Rd3 Rd5 Rc8 Rdb5 Rcd8 a8R R3d6 Ra6 g3+ Kg2 Rd3 Rab6 R8d4 Rf7 Bf6 Nf8 Bg5 Be6 Nd5 Qd2 c2 Qf2 Rc4 Qfc5 c1N Rf6 Rd1 Bf7 Rc3 Rh1 Na2 Rf1 Bc6 Ne3 Bd7 R6f5 Ngf6 Ng4 Rg8 h8Q Be8 Qh7 Rcc1 Qg6 Bh4 h7 Nac3 Kh3 g2 h8Q Rg7 Nh6 g1N+ Kg2 Nge2 Kh3 Rg8 Qg2 Rg4 Qg7 Rgd4 Ra1+
1BQnKb2/1pp3RR/nr1R2N1/q1B5/2B2kp1/1q1R3R/1Q2b1nR/4nB2 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 c4 d5 cxd5 f4 b4 axb4 Nc3 h5 Ne4 Ra6 Nf2 Rah6 Nf3 Rf6 Ng1 Rf5 gxf5 Qf6 Ng4 hxg4 Kf2 Qg5 Ke1 Qd8 Kf2 Ke7 h4 g5 a4 f3 Kg3 f2 e4 b3 d4 b2 e6 Kf6 h5 b1Q d6 Be7 h6 Na6 h7 Nb8 d5 Ke5 a5 Qf8 d7 Nc6 d8R Qb2 a6 Bd6 a7 Qf6 a8Q Qb3+ Be3 Qc3 e7 Bd7 e8B Qc5 Nh3 Qe6 f6 Bf8 d6 Qc2 f7 Nce7 Rh2 Ba4 d7 Qf6 Qc1 Bb5 Ra3 Bd3 Nf4 Qg6 Qb2+ Qc3 Qc8 Nd5 Ba7 Qf5 Ng6+ Kd6 Bb8 Nb4 e5+ Kd5 e6 Ke4 e7 Nh6 Rb3 Qa5 Ra3 Rg8 h8R Na6 Rh7 Qc4 Rc3 Be2 Rd3 Qb3 Rh3 Bg7 f8B Kf5 Bf7 Rh8 Bg8 Nf7 Re8 Nd8 Bc4 Bh6 Rh2 Rg8 Rh3 Rg7 Rh2 Rf7 Rh3 Rf6 Rg7 Rb6 Rh7 Nc6 d8R+ Ke4 Rd6 Nd8 Kg2 g3 Rh2 Qe5 Kh3 g4+ Kh4 g2 Rg7 Qec3 Kh5 g1N Rdh3 Nf3 Rd3 Nf7 Red8 Ne1 R8d6 Nd8 Rh7 Bg7 e8R+ Qe5+ Kh4 Bh6 Ree7 Bg7 Rf7 Qa5 Be7 Bf8 Rfg7 Qab4 Kh5 Qa5+ Ne5 Kf4 Kg6 Ne6 Kf7 Nd8+ Ke8 Nb4 Bg2 f1N Qa3 Ne3 Qb2 Na6 Bf1 N3g2 Ng6+ Ke4 Re6+ Kf5 Bd6 Kg5 Bc5 Kf5 Red6+ Kg5 Ne7+ Kf4 Ng6+
3nbrR1/1k4b1/Q1n2q2/3Rqp2/p1R5/Q2NQ1bp/K4Q1p/1R1NB1QQ b - - 0 1 illegal: No possible last move
kR6/2BnbB2/2bQQ3/K2bpN2/B1r1QQ2/5rp1/Q1nnpp2/1Q1B3R b - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 d5 a4 dxe4 axb5 c6 b6 c5 b4 e5 f4 Qe7 f5 Qb7 b5 Kd7 Nc3 Qc6 Na2 Qe6 fxe6+ Ke8 Nb4 cxb4 c4 Kd8 h4 g5 d4 f5 Kd2 a5 d5 a4 b7 Kc7 h6 a3 h5 f4 c5 g4 e7 f3 e8B g3 b6+ Kd8 h7 b3 Kc3 a2 Kb4 b2 h6 b1B d6 e3 c6 f2 Qe2 Ra5 Ba3 Bg4 Bf7 Bbf5 c7+ Kd7 c8B+ Kc6 Rb1 a1N Qa2 Be2 Nf3 Bc4 Nh4 Bc2 Bg4 Nf6 Nf5 B2b3 Bd1 Rc5 d7 Be2 d8Q Bg4 Qd4 Ba4 Qe4+ Kd7 Bb5+ Rc6+ Ka5 e2 Bd6 Bb3 Ba4 Bf3 Bc7 Bd5 Rb2 Rg8 h8Q Be7 h7 Rf8 Qg8 Nc2 h8Q Bg2 Rb5 Rc4 Qhh4 Kc6 Qhf4 Nbd7 b8Q Bf3 b7 Bg2 Qd3 Ne4 Qd8 Nd2 b8Q Bgf3 Qde4 Bg2 Qa7 Bf3 Qae3 Bg2 Qeb3 Bf3 Qbb1 Bg2 Bb6 Kb7 Qg6 Bf3 Qe6 Bc6 Qc7+ Ka8 Qcd6 Bd5 Bc7 Bc6 Qee3 Bfd5 Qd3 Rb8 Rb2 Rb3 Qde4 Rf3 Rb8+
4Q1N1/4NBk1/1K1Rn2R/3p2n1/1b1R1N2/R1q2R2/R2pp1n1/1R1bR1bn b - - 0 1 legal: proof: b4 b5 d4 a5 e4 f5 exf5 c5 a4 cxd4 g4 Qb6 Ba3 Kd8 axb5 Qc7 b6 Ke8 b5 Qd8 Bb4 axb4 f4 Kf7 f6 Ke6 f5+ Kd6 f7 Ra3 f6 Rf3 Qd2 Rf2 Qd1 Rf5 h3 g5 gxf5 h5 h4 g4 Qe2 Rh7 Qd3 Rg7 Qd1 Rg5 hxg5 Kd5 Bh3 Kc5 Bf1 Kd6 Kf2 Ke5 c4 d3 Ke3 d6 b7 h4 g6 h3 c5 g3 b6 g2 g7 h2 c6 e6 c7 b3 Nc3 d2 Ra3 b2 Qh5 b1N Nh3 Ne7 g8N Ng6 Nd5 Nc6 b8R Bh6+ Nhf4 Nh4 f8R Nf3 b7 Nfd4 f7 Nb4 f6+ Bg5 Nde7 Nc3 Re8 Nd3 f8R Ne1 f7 Ne4 Rba8 d5 b8R Bd7 c8R Qa5 Rc4 Ba4 Rb1 Bd1 Bd3 Qc3 Qe2 Bh6 Rc6 Ng5 Rd6 Bg7 R8a4 Bf6 Rea8 Bg7 Rfe8 Bh6 f8R g1B+ Qf2 Bg7 Rf7 Bf8 R8a7 Qc8 Bg6 Ng2+ Kd3 Qc7 Rc4 Qc6 Kc3 Qc8 Kb4 Qc6 Ka5 Qc8 Rcb4 Qc3 Nc8 Be7 Rf6 Bf8 Bf7 Be7 Rh6 Kf5 Qe2 e5 Qe1 e4 Rf8 e3 Kb6 Nde6 Rd4 Ke5 Qe2 Kf5 Qb5 e2 Qe8 Ke5 Rd8 Bb4 Nce7 Bf2 Re1 h1N Ra2 Bg1 R7a3 Ne4 Rd6 N4g5 Neg6+ Kf5 N8e7+ Kf6 Ng8+ Kg7 N6e7 Qf3 Bg6 Qb3 Rf5 Qc3 Bf7 Bh2 Re5 Bg1 Re3 Qb2 Reh3 Qc3 Rf3
4qB1r/1rRb2qB/3BNbR1/3N3n/1Br2q2/Nn6/r2B4/NkqBK2B b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bh3 Qb3 Bd7 axb5 Ra7 b6 Bc8 b5 Ra8 Qb4 axb4 g4 Ke7 d4 Kd6 e4 f5 e5+ Ke7 g6 h5 d6+ Ke6 g5 Kd5 g7 Ke4 e6 c5 d7 f3 e7 b3 e8B f4 b7 b2 d5 c4 d6 c3 g6 c2 b6 h4 Ra7 h3 Bd2 h2 Bg2 Kd3 Na3 Nf6 g8B Bg7 Ne2 b1R+ Nc1+ Kd4 Bh7 Na6 b8B Nc5 b7 Nb3 Rg1 Nh5 Bh1 Bf6 g7 Rb2 g8N f2+ Ke2 f1R Rg6 Rf3 Ne7 Rc3 Ke1 f3 Nd5 Rc4 Bf7 Qc7 d8B Bd7 Be7 Qc8 Bc7 Qe8 b8B Rb1 Bca5 f2+ Ke2 Rb2 Bab4 Ra2 Rc7 Ra7 Be6 Rb7 Bg4 Rc6 Be4 h1Q Bf8 Rc4 Bf3 Qg1 Bh1 Bh3 d7 Bf5 d8N Bd7 Bf3 Qg5 Kf1 Qh6 Bd1 Qg7 Nd3 c1Q Ne1 Na1 Bh1 Nb3 Nec2+ Kd3 Bg5 Qf4 Na1 Qc1 Ne6 Qf4 Bbd6 Kd2 Bb4+ Kc1 Bh6 Kb2 Ke2 Qc1 Bhd2 f1Q+ Ke3 Qf4+ Ke2 Rb6 Ke1 Rb7 Ba7 Qc2 Bac5 Qc1 N3c2 Kb1 Bce7 Bc3 Bed6 Bf6 Na3+
1N1BbB2/1n4Kn/5r2/2p1B1R1/1nB1NB2/B2Nr2B/3p1qn1/2bN1Rkb b - - 0 1 illegal: No possible last move, all moves rejected
1BnBn3/RKB2B1R/2n2B2/p3pr2/2b2kRq/5BRb/1pN4r/NnR5 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 f5 exf5 h5 a4 bxa4 gxh5 Qa5 Ba6 Qc7 Bf1 Qd8 c4 e6 d4 Qg5 b5 Qf6 Qb3 Ke7 Qb4 cxb4 c5 Ke8 c6 Bc5 dxc5 Qd8 Kd2 Ke7 Ke3 Kf6 Kd4 g5 f4 d5 h4 a6 h6 g4 h5 g3 h7 g2 b6 a3 c7 a2 h6 b3 c6 b2 Kc5 d4 b7 e5 Kb6 d3 Ne2 g1N Rh4 d2 Na3 d1B Nd4 Ne7 Bc4 Bd7 Nb3 Re8 h8R Bc2 h7 Kg7 f6+ Kg6 f7 Kf5 f8B Ke4 f5+ Kf3 f6 Qc8 f7 Bg4 Bg5 Nh3 Rg1 a1N Rg3+ Ke4 Be2 a5 Bf3+ Kf5 Bg7 Nf2 f8B Qd7 c8R Qd8+ c7 Bd3 Rg8 Bf1 h8R Nc2 Na1 Ne4 Rh1 Be2 Rc1 Nbc6 Rh2 Ra7 Ra8 Nd6 b8B Bc4 Bh4 Kf4 Rhh1 N2b4 N3c2 Na2 Bh8 Nc3 Rg6 Qd7 c8B Nb1 Rh2 Rc7 Ra7 Qd8 Be6 Nec8+ Kc5 Qd7 Bd8 Qe7 Rhh3 Rd7 Rh7 Bh3 Bed5 Qh4 R6g4+ Kf5 Bg8 Re6 Bdc7 Rf6 Bf7 Ne8 Be7 Rd2 Bed8 Rh2 Bg7 Rh6 Bgf6 Rh5 Rgg7 Kf4 R7g5 N8e7 Kb6 Nc8+ Kb7 Ba2 Rg8 Bc4 R8g7 Rf5 R7g4+
R2RRK1R/R3rn1r/BN1r2br/5q2/8/2RNNbp1/n3b1B1/4BNrk b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Qa5 f5 Na3 f4 Kd1 f2 Qa4 f3 Nb1 Bd6 Qg4 Bf4 gxf4 hxg4 Kc2 Kd7 Kb3 Kd6 Kb4 g5 h4 c6 d4 a6 e4 g3 h5 g2 b6 g4 f5 g3 b7 Qc7 h6 Be6 f6 Ra7 e5+ Kd7 Kc5 a5 b4 a4 h7 a3 d6 a2 d5 Bf7 e6+ Kd8 d7 Nh6 b5 Ra4 b6 Re4 Nd2 Ra4 Ne2 g1R Nf4 Bh5 f7 Ke7 d8R Kf6 f8N Kf5 e7 Kg4 e8B Ra7 d6 Qc8 d7 Bg6 Kd6 c5 Ke7 c4 Nd5 c3 Ne6 c2 Nef4 Na6 b8R Nf7 b7 Nb4 Ba6 f1B Ra8 f2 b8N Be2 Nd3 Bf3 Nf1 Rc7 Bf4 c1R Bd2 R1c6 Be1 Rd6 Rc1 a1R Rc3 Na2 Nde3+ Kg5 Rh2 Rb7 Rg2 Kh4 Ra7 Qc5 Rc8 Rbb6 d8R Kh3 Nd7 Qf5 Rca8 Rbc6 Nb6 Rd1 Nd2 f1B Bd7 B1e2 Ndf1 Rb1 Be6 Rb4 Rf2 Rh4 Bec8 Rc7+ Bd7 Rh6 Re8 Rg8 h8R Rg7 Kf8 Rgh7 Be6 Re7 Bec8 Bd5 Rf4 Bdf3 Rd4 Rc6 Rdd8 Rd6 Nd1 Kg2 Nde3+ Kh1 Be6 Qe4 Bh3 Qf5 Bg2+
k1N4b/2NrB1bR/q1NRp3/1B1N4/2BR2RR/3q1q2/1Kn2pR1/5rbn b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Bb7 f5 Bh6 Qf3 Bc8 Qe3 Be6 Qf4 gxf4 h3 Bf7 g5 Bh5 Ne2 Bf3 Ng1 Bg4 hxg4 Bf8 Kd1 Kd7 Kc2 Kc8 d4 Kb7 b4 c5 g6 h5 d6 a5 b6 c4 d5 f3 g5 f2 f6 e3 d7 a4 f7 c3 b5 e2 g7 e1Q d6 h4 g6 h3 Ne2 a3 Nd4 a2 Nf5 h2 Bg5 Qc7 d8R Rh3 d7 Ra3 Nd6+ Ka8 b7+ Ka7 Ne8 Nh6 g8R Ra5 g7 Nc6 b8N Qg3 b6+ Ka8 Bb5 Qe2+ Kb3 c2+ Kb2 Nb4 Nc3 Ra3 Rag1 Qgd3 Rg4 Ra7 Nd5 Nf5 Rh8 Rh7 g8B Bg7+ Bf6 Qef3 f8N Ng3 Ng6 Ra3 Rg1 h1Q Rg2 Qhf1 Bf7 Rh1 Rhh4 Q1e2 Rh7 Rf1 Rgh4 Nh1 b7+ Ka7 Ngf4 Rc3 Nb6 Rc7 Bfc4 e6 Nfd5 c1B+ Ka1 Bd2+ Kb2 Nc2 Rhg4 Nd4 Be7 Bh8 Rc8 Bg7 d8R Rd7 Rc6 Bh8 Rd6 Nc2+ Nc3 Bg5 Rdd4 Bf4 Ncd5 Bh2 Rhh4 Rc7 Rd6 Rd7 Na6 Qh3 b8R Qhf3 Nab4 Bg1 Rd8 Bg7 Nc8+ Ka8 Nc6 Bh8 Nef6 Bg7 Rf8 Bh8 Rf7 Bg7 Ne8 a1B+ Ka2 Bh8 Rfh7 Bc3 Rde4 Bcg7 Rd4 Qe1 Kb2 Qa5 Nb8 Qb6 Nc6 Qa6 Nec7+
2r2RKN/p1b1pBR1/4R3/2r4B/nB1q3b/Nk2R2r/1Nn1BqbR/6R1 b - - 0 1 legal: proof: c4 b5 f4 f5 g4 d5 cxd5 g5 e4 fxe4 a4 h5 axb5 Qd6 fxg5 Nf6 g6 Qd8 g5 Ng8 Qg4 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 h4 c5 d4 e3 h5 c4 h6 g3 h7 e2 b6 e1Q+ Ne2 c3 b7 g2 d6 g1R d5 c2 g7 Rg3 g6 Rb3 d7 Nh6 Ke6 Qc7 g8B Qcc3 g7 Kc4 d6 Qf2 Nf4+ Qd3 Na3+ Kb4 Be2 Qd2 Rh2 Qg3 Bf7 Qgc3 g8B Qc7 Bfh5 Qdc3 Bd2 c1B Bgf7 Rg8 h8N Qc5 Nd3+ Ka4 Be1 Rb5 b4 Ng4 Nb2+ Kb3 Bd2 Na6 b8R Bg7 Rb6 Ra5 b5 Q3d4 Bb4 Bf4 Rg1 Bb7 d8R Ne3 d7 Rc8 Rf8 Bc7 d8R Nc2 Rc6 Bh6 b6 Bg5 Rde8 Ba8 b7 Bh4 b8R Rg3 Rb5 Qb6 Re5 Rc5 Rd8 Rh3 Re3+ Rc3 Rcd6 Bg2 Rg8 Qbc5 Rdf8 Qb6 Rg7 Qbc5 Bg8 Qb6 Kf7 Nc5 Rde6 Na4 Bh7 Qbc5 B7g6 Qf5+ Kg8 Qf2 R3e4 Rc4 Bf7 Rc5 Re3+
5nk1/R1RpRR2/2r4N/N1Np1b1p/1b6/8/qbBNRnBB/rR4Kb b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 e4 f5 exf5 c6 a4 Nf6 d4 Bb7 d5 cxd5 Qd2 Bc8 axb5 Nh5 b6 Nf6 b5 Ng8 Qb4 axb4 g4 Kf7 f4 e5 Kf2 h5 c4 e4 b7 b3 b6 b2 c5 Ra4 f6 Be7 f5 Na6 b8N Rd4 g6+ Kf8 g7+ Kf7 b7 Rh6 c6 Bd6 g5 Bc5 c7 Qe8 Nc6 Qe5 b8N Qe7 g6+ Ke8 Bf4 Bb6 Nh3 e3+ Kg1 e2 Bh2 e1B Bg2 Qe4 Nf2 Qe3 Nd2 b1B Na5 Qg3 f7+ Ke7 f8R Qb3 Ng4 Nc5 Na6 Nf6 g8B Be4 g7 Nd3 Nc5 Qa2 Bh7 Ra4 g8R Ba6 c8R Nf2 Rc7 Bad3 Re8+ Kf7 Rb1 Bf3 Re2 Ba7 Rg5 Bde4 Bg6+ Kg8 Rbb7 Nh7 f6 Bc2 Rge5 Nf8 Re7 Bf5 Rb1 Bb8 Ra7 Be5 f7+ Kh8 Rbb7 Bb2 Bh7 Rc6 Rc7 Be6 Bc2 Bf5 Ndc4 Bb4 Nd2 Ng6 R7e6 Ra3 f8R+ Kh7 Rf7+ Kg8 Re8+ Nf8 R8e7 Qb1+ Re1 Ra1 Re2 Qa2 Ree7 Bc1 R1e2 Bb2+ Bf1 Bc1 Bh3 B3e4 Kf1 Bd3 Kg2 Bb2 Rb1 Bde4+ Kg1 Bh1 Bf1 Be5 Bg2 Bb2 Nh6+
1B1qr3/Bb1Q2K1/3BB3/qB2r3/2qp2NB/2p4r/nQ1nkR1R/2B1B2n b - - 0 1 illegal: No possible last move, all moves rejected
N1B4R/1R1Q1B2/4b1R1/1K3Q1p/1n2n2p/Q2pq1Rq/1BB1p1k1/1bQr4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 Bb7 h5 Bc8 g4 Qb6 h6 Bb7 Nd2 Bc6 Ndf3 Nf6 Nh4 gxh4 g5 Ne4 g6 Nf6 g7 Bb7 g8B Bg7 hxg7 Bc8 Be2 Qc7 Bf1 Qd8 Kd2 a5 Kd3 d5 c4 Kd7 f4 Kd6 b4 h6 b6 a4 c5+ Kc6 b7 a3 b5+ Kd7 b6 Kc6 Ne2 a2 Bb2 Qf8 Bf7 Qe8 g8R Ng4 f6 Ra6 f5 Ra4 Qc1 Ra3+ Nc3 Be6 Rg6 Na6 b8Q h5 b7 Rh7 Rb1 a1Q Rh3 Rb3 Qe5 Qa3 b8R Rh8 Rf3 Nf2+ Kd2 d3 Qd4 Rh6 Nb5 Nb4 Nc7 Ne4+ Ke3 d2+ Bd3 d1B Na8 Qd7 Rh8 Bc2 Ke2 Ng5 Qg4 d4 Kd2 Kd5 c6 Qaa7 c7 Ne4+ Ke2 Rh7 c8B Rg7 Qh3 Ra3 Qg4 Ra1 Qh3 Bb3 Bc2 Ba2 Bg8 Qb6 f7 Qc5 f8Q d3+ Ke1 Qd4 Bf7 Qe3+ Kd1 Rg8 f6 Rg7 Rgh6 Rg3 Rg6 Qc7 Qe8 Qe5 Qf1 Qf5 Qa4 Qh3 Qd7+ Nd6 Qf2 Ke4 Qf1 Bec4 Qf2 e5 Qf1 Be6 Qf2 Qb6 Kd2 Qe3+ Kc3 Qf1 Ba3 Qh3 Rb3 Bb1 Bb2 Na6 Rb7 Nb4 Qce1 Bba2 Qed2 Rd1 Qc1 Bb1 Qf1 Kd5 Kb3 e4 Ka4 Qd4 Rf2 e3 Rf3 Ke4 Ka5 e2 Qf2 Nc4+ Kb5 Qa7 Qc5 Nd2 Qc3 Qf2 Qa3 Qd4 Bg8 Qe3 f7 Bea2 f8Q Be6 Rf2 Qd4 Bf7 Qe3 Rh2 Kf3 Rh1 Qh6 Rf1+ Kg2 Rf3 Ne4 Qc5 Qf4 Qf5 Qe3 Rfxg3+
1kN3Q1/2b1R1RN/1pK1n1pq/1NQ5/1qN3n1/bqp2Bp1/4R3/1Q1R2Q1 b - - 0 1 legal: proof: e4 f5 d4 e5 g4 a5 b4 axb4 c4 d5 f4 h6 c5 Nd7 c6 Nb8 Bd2 Bd7 cxd7+ Kf7 exd5 e4 d6 Ra5 Bc1 Re5 fxe5 Rh7 Bg5 f4 d5 hxg5 Qc2 Rh6 Qd2 Rf6 Qd1 Rf5 gxf5 Qf6 Bb5 Qe7 Bf1 Qd8 Kf2 c5 a4 f3 Ke3 b3 h4 b2 f6 g4 a5 g3 a6 f2 h5 c4 Kd4 e3 Kc5 e2 h6 e1B e6+ Kg6 e7 Kf7 e8R g6 a7 c3 a8N Be7 h7 Bf8 h8R Be7 Be2 f1Q Nf3 Nc6 Nfd2 Nd4 Ra7 Bf8 R8h2 Nh6 Bf3 Ndf5 Nc4 Ne7 Re2 Qg2 Nab6 Neg8 Nba3 b1Q Nb5 Be7 Nc8 b6+ Kc6 Bd2 Qg1 Qb4 Qb1 Qf2 Rd1 Qh2 Rb7 Bf8 R8e3 Qe7 d8Q Nf5 d7 Qh6 d6 Ng7 Qc7 Ne6 d8Q Qb3 d7 Qeb4 Qd6 Bc1 Qc5 Bd6 Qc7 Kf8 f7 Nf6 Ra7 Ba3 d8Q+ Kg7 Qe8 Ng4 Qg8+ Kf6 f8N Be5 Qch7 Bf4 Re4 Bc7 Qg1 Kf5 Rb7 Kf6 Qe7+ Kf5 Qec5+ Kf6 N8d6 Ke7 Ra7 Kd8 Re5 Ng5 Re7 Ne6 Nh7+ Nf8 Ne4+ Kc8 Ned6+ Kb8 Nc8 Ne6 Rg7 Bd6 Raf7 Bc7 Re7
5Rrq/8/B1bNR1B1/3QBbb1/7R/b1kBq3/Qnrb1nQ1/RKQ3q1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 hxg5 exf4 e4 Nd7 Na3 Nb8 Nc4 Bb4 Ne3 fxe3 Qh5 Bd6 Qd1 Bf8 b4 Kd7 d4 Kd6 g4 h5 g6 c5 b6 a5 b5 f5 g5 a4 e5+ Ke7 e6 Kd6 g7 c4 g6 e2 Kd2 e1Q+ Kc2 c3 b7 f4 b6 a3 e7 f3 e8B f2 Ne2 h4 Kb1 h3 Ng3 h2 Bd3 f1Q Bb2 Be7 Qc1 Nh6 g8B Na6 b8R Nb4 b7 Bg5 g7 Ng4 Beg6 Nf2 Ba6 Qee2 B8h7 Nbd3 g8Q Bf5 Rc8 Qfd1 b8R Qe3 Rb7 Qg1 Re7 Qf8 Re4 Qg7 Rf8 Rc8 Qf7 Rg8 Qb7 Rc7 Re6+ Kd7 d6 Qh8 Qb3 Kc6 d5+ Kc5 d7 Kd4 d8Q Rc4 d6 a2+ Kc2 Rc7 d7 Rc6 Ne4 Rc7 Ba3 Nb2 Qa8 Rc8 Bd6 Rc4 Rb1 a1B d8Q Rc5 Qa5 Rc6 Qba2 Rc4 Kb3 Kd3 Be5 c2 Qce1 c1B Nd6 Bd2 Qg2 Bh6 Qc1 Bg5 Bb7 Rc2 Ba6+ Nc4 Qc5 Bb2 Ra1 Ba3 Qab2 Bf6 Ka2 Bg5 Kb1 Qge1 Bb7 Qg1 Qa2 Nb2 Qcd5+ Qd4 Ba6+ Kc3 Bg3 Qe3 Bf4 Bg4 Bgd3 Bf5 Bg6 Qd1 Re1 h1B Re2 Qg1 Bh2 Qg3 R2e4 Qgh3 Rh4 Qe3 Qg3 Bf3 Qg2 B3e4 Qb5 Ba8 Qbd5 Bc6 Be5+
q4kr1/1R4n1/1r1b1rnB/1B1R2NQ/3bR3/B3QR1q/K1BQb3/n2r3Q b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 b4 c5 d4 a5 Kd2 e5 Kc3 a4 Kb2 g3 h4 g2 b6 e4 b7 e3 f6 e2 g6 e1R b5 a3+ Ka2 c4 f7+ Ke7 h5 f3 b6 c3 d6+ Kd7 h6 c2 g7 f2 h7 Ra5 d5 Re5 Bb5+ Nc6 b8R f1R b7 Qg5 Rh3 Nh6 g8B Qh4 Qh5 Rd1 Nf3 g1B Ng5 Re6 Rf3 Qh3 Bb2 Kd8 d7 Ke7 d8R c1Q Bg7 Nf5 Bh6 Ra6 d6+ Kf6 d7 Ke7 Rb1 Rf6 Rb4 Rb6 Ra4 Ne5 Re4 Qf1 Qh1 Qc6 Qh5 Ng7 Qh1 Kd6 Qh5 Be7 f8B Bd4 Bb3 Rg8 h8Q Qh3 Bc2 Ng6 Re8 Kd5 d8Q+ Bd6 Qd7 Kc5 Rd8 Kd5 Qe8 Bg4 Rd7 Kc5 Rbd8 Kd5 b8Q Qa8 Rb7 Kc5 Qa7 Kd5 Qa5 Kc5 Kb3 a2 Rdd7 a1N+ Ka2 Qb8 Qd2 Qa8+ Ra3 Be2 Qe6 Qc8 Rf3 Qc6 Qb3 Qc8 Qbe3 Qa8+ Ra7 Kd5 Rb7 Kc5 Ra5 Qg2 Qh1 Be7 Ba6+ Kc6 Rd5 Qh3 Qh7 Bd8 Ba3 Bc7 Rb5 Kd7 Rd5+ Kc8 Bb5 Bd6 Qh8 Kd8 Qh7 Nh8 Qf5 Ng6 Qg4 Nf4 Bd7 Ng6 Ne6+ Ke7 Ng5+ Kf8 Qh5 Rh8 Be8 Rg8 Bb5
b1n1Q3/R1n1prQ1/Nb4RR/8/2rNN1bR/K3B1Nb/n5k1/1Q1n2Qq b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 h4 gxh4 b4 a6 b6 Be6 b7 Bf7 b5 Be6 b6 Bc8 Bb5+ axb5 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 h5 f4 h3 g4 h2 g5 h4 f6 h3 f7 b4 g6 Na6 b8Q+ Nc7 f5 Nh6 f6 Ra4 g7 Rh7 g8R Bg4 b7 Bg7 f8R Nf7 Nd2 c4+ Kb2 b3 Ne2 Qd7 Qe1 Qc6 Ng3 Rb4 Ka3 c3 Rh8 b2 Rfg8 b1B Ra2 Bh6 Rg6 c2 Qe8 Bf4 b8N Rc4 Na6 Be3 Ra1 Rg7 Rh4 Qb7 Qb5 Ba2 Qb1 Qc6 Rg1 h1N Rgh6 h2 Rg2 Nf2 Nde4+ Kd7 d6 Ke6 d7 Kd5 d8Q+ Nd6 f7 h1B f8N Nd1 Ne6 Rf7 Qh8 Nc8 Qg7 Bg1 Be3 c1N Rf2 Bg2 Rff6 B2h3 Rfg6 Bb3 Ra2 Ba4 Rb2 Qa8 Rb7 Bc6 Ra7 Na2 Nf6+ Kd6 d5 Ke5 d6 Be4 d7 Qd5 Bg5 Bb6 Be3 Bh1 Nd4 Bhf3 Bf2+ Kf4 d8Q Qh5 Qdf8 Ba8 Qe8 Qd5 Nfe4 Qb7 Ndf5 Kf3 Nd4+ Kg2 Be3 Qc6 Nf2 Qf3 Nfe4 Qf1 Qd7 Qg1 Qe8 Qh1 Qg1+
1n3r1R/QrN4Q/q2NQ1qn/7n/1RNR1RQ1/rB6/1bq2p2/1Nqk1K2 b - - 0 1 illegal: No possible last move
n3qQ1B/N7/q6r/NR1q1p2/1npQ2B1/K3Q1BN/Qr1qN3/k3Bbb1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 e6 b4 Ba6 b5 Bc8 g4 exf5 g5 f6 gxf6 h5 Ra4 Be6 Rg4 hxg4 b4 Bc8 e4 Kd7 d4 Kd6 Kd2 g5 Kc3 a5 Kb3 c5 h4 c4+ Ka3 a4 h5 g3 f7 g4 e5+ Kc7 h6 Kb6 d6 g2 h7 g3 d5 Qe8 d7 Nh6 d8N Be7 f8Q Bg5 d6 Nc6 d7 Rb8 e6 Ng8 e7 Nf6 Be2 Bb7 Nh3 g1Q Qb3 g2 Bd2 Qe1 Bg4 g1Q Nc3 Qg2 Ne2 Qd5 Bc3 Ba8 Nb7 Qed2 Na5 Be3 Rb1 Bg1 d8N Bb7 Qg7 Nd7 Qd4+ Kc7 b6+ Kd6 b5 Nb4 Ndc6 Ba8 b7 Nb6 Qg7 Kc5 Qf6 Rg8 Qh4 Rg6 Na7 Rh6 Rb2 Q2d4 Be1 Qd2 Nc3 Kd4 h8B+ Kd3 Qf2 Rd8 b8B Rd7 Qh4 Rb7 Bbe5 Rb8 Qf2 Bc6 Rb1 Na8 b6 Rb7 Bg3 Rb8 Qa2 Bb7 Qa1 Kc2 Ne2 Bc6 Qad4 Rb7 Ra1 Rb8 Ra2+ Kb1 Rb2+ Ka1 b7 Qdd8 Qg7 Bg2 Qe3 Q8d5 Qgd4 Bf1 Qb3 Rd8 b8Q Rd7 Bgf2 Rb7 Bg3 Qed8 e8Q Na6 Qbd3 Qc8 Qf8 Qe8 Q3e3 Rb5 Rc2+ Kb1 Rc3 Rb2 Nb3 Nc5 Kb4 a3 Qb6 a2 Qb8 a1Q Qb7 Qa6 Qb6 Ra2 Na5 Rc2 Ka3+ Rb2 Rb3 Ka1 Qb4 Nd3 Qbc3 Qc2 Rb5 Nb4 Qb3 Qd2 Qa2+
2n1BBKB/1R1R4/p4Qn1/rR3Npp/1B5R/pn1qQ1b1/1Q2qQk1/r7 b - - 0 1 legal: proof: d4 b5 c4 d5 cxd5 f5 a4 bxa4 g4 e5 gxf5 Bb7 d6 Bc8 h4 g5 d5 Qf6 h5 Qd8 Nd2 Be6 Nb3 Bf7 Nd4 Bg6 hxg6 exd4 Kd2 Kd7 Kd3 c5 Ke4 h5 Ke5 a6 f4 a3 b4 d3 e4 d2 f6 c4 g7 c3 b5 c2 f5 Nh6 g8R Qc7 b6 Qa7 f7 Nc6+ Kf6 Rd8 b7 Qe3 b8Q Na7 e5 Qd4 Rh4 Nc6 Rg7 Qc3 Bb2 c1Q Bb5 Qc4 Qc2 d1N Rb1 Re8 Ne2 Nc3 Nd4 Qf4 Qf2 Qg3 Qb6 Qgd3 e6+ Kc8 e7 Kd7 Kg6 Rg8 Kh7 Ne4 f6 Nc5+ Nf5 Nb3 Qbe3 Rb8 e8R Ng4 Re5 Be7 f8B Qce4 Ba4 Rb5 f7 Ra5 Bc3 Qe2 Bb4 Q2d3 Qb2 Qf3 Bb5 Qfe2 Rd1 Bd8 Rb1 Bc7 Re7+ Kc8 d7+ Kb7 d8Q Na7 d6 Nc8 Be8 Ne5 Rd7 Kc6 Qf6 Bb8 Rb7+ Kd5 d7 Ng6 d8B Bh2 Bb6 Bg3 Bd4 Bf4 Qg1 Ke4 Bdc3 Kf3 Qe3+ Kg2 Rb5 Qe4 Rd1 Bg3 Rd7 Qa8 Bfc5 Qb8 f8Q Qd6 Rdb7 Qd5 Rgd7 Qd3 Be5 Rh8+ Kg7 Rh7+ Kg8 Re7 Q8f7 Re6 Bf8 Rb6 Q6e6 Rc6 Bh8 Rc1 Q6b6 Rh1 Qff6 Ra1 Qb6d4 Qed2 Qdf4 Q2e2 Qff2+
1N1QK2b/B3prQB/2k3p1/4n1NQ/pqN1p3/pN2BR2/7Q/B2rrb2 b - - 0 1 legal: proof: e4 d5 g4 Kd7 a4 h5 gxh5 b5 c4 bxa4 cxd5 Nf6 d6 Kc6 d7 Ng8 b4 Kd6 d4 Ke6 d5+ Kf6 Ra2 Nc6 Re2 Na5 Re3 Nc4 Re2 Ne3 d6 Nd5 Re3 Ke6 Re2 f5 exd5+ Kf7 Re4 fxe4 Kd2 c5 Kc3 a5 Kc4 g6 Kb5 c4 Kc6 c3 f4 a3 h4 c2 b5 a4 h6 Ba6 f5 Rh7 b6 Qe8 b7 Rb8 h5 Rg7 h7 Rd8 h8B Nf6 b8N Ng4 f6 Bd3 h6 Nf2 h7 Nh3 Ne2 Ng5 Rh3 Rg8 Nd4 Rg7 Nd2 Be2 Rf3 Ne6 N4b3 Nc7 Nc4 Rg8 Be3 c1R Bg7 Rc2 h8Q Na8 Qh2 Rh8 Bh3 Kg8 f7+ Kh7 Ba1 Bg7 f8Q Bf1 Qf7 Nb6 Be6+ Bh3 Qf6 Rf8 Bg8+ Kh8 Kc7 Rc1 Bh7 Rf7 Qdh1 Bg2 Qh5 Qg8 Q1h2 Bf1 Qd4 Re1 Qdb2 Re8 d8N Nd7 Ne6 Rd8 Ng5 Ne5 d7 Bf6 d6 Kg7 Ba7 Kf8 Qc3 Bh8 Qd4 Re8 d8B Qg7 d7 Qf6 Kb7 Qd6 Bdb6 Qb4 Kc7 Rd8 Qc3 Rf4 Be3 Rf6 Nh3 Kf7 Qcb2 Ke6 Ng5+ Kd5 Qc3 Rd6 Qcb2 Rf8 Qc3 Rf7 Kd8 Qa5+ Ke8 Qb4 d8Q Rd7 Na6 Kc6 Qcb2 Rdd1 Qc3 Nd3 Qg7 Ne5 Nb8+
N3B3/nB2N1n1/KR4R1/nB5b/4r1Rb/Bb1b1p1N/k2qq1N1/r4BR1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bh3 Qb3 Bd7 axb5 Ra7 b6 Bc8 b5 Ra8 Qb4 axb4 e4 Kd7 Ke2 Kd6 Kd3 Kc5 g4 f5 d6 h5 b7 b3 e5 Kb4 b6 c5 g6 b2 e6 Kb3 e7 h4 e8B h3 g7 f3 d7 h2 g5 f2 g6 f4 Ra4 f3 Rg4 Ra6 Nc3 b1N Nh3 Rh5 Nd1 Ra5 Ne3 Nf6 Rhg1 h1B Ng2 Rh4 Ba3 Nh5 g8B+ c4+ Kd4 Ra6 g7 Be7 Bd5 Nc3 g8B Ng7 d3 Bg5 Kc5 Nb5 d4 Nc6 b8N Na5 b7 Ka2 Nc6 Na7 b8R Bf6 Rb3 c3 Ne7 c2 Bb7 c1Q+ Bgc4 Qc2 d5 Qe2 d6 Bg5 Bb5 Bf6 Rg5 Re4 Rg6 Bh4 Rb4 Re3 Rbg4 Re4 Nf5 Qg5 d8R Qgd2 Ne7 Be6 d7 Bc4 Rb8 Bb3 Ne1 Bg2 d8N Re3 Ne6 Re4 Nhg5 Bh3 Ng2 Ra4 Nc7 Re4 Rg3 Bhe6 Nh3 Bg4 Na8 Bh5 R3g4 Qee1 Bfd3 f1B Bdc4 Qee2 Bd3 Rf6 Bdc4 Rf5+ Kb6 Rc5 Bd3 Rc1 Ka6 Rd1 Rc8 Ra1 Rcc6 Qee3 Rb6 Be2 Bc2 Bd3 Bd1 Qef2 Be2 Qfe1 Bf1 Qed1 Bd6 Q1e2 Ba3
R3r3/rNBqNkr1/4n1n1/B3r2r/1r2bBp1/rB6/2N1RR2/1NR1K2B b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Qa5 f5 Na3 f4 Kd1 f2 Qa4 f3 Nb1 Bd6 Qg4 Bf4 gxf4 hxg4 e4 g5 b4 a5 d4 c5 h4 g3 h5 g4 b6 c4 d6 g2 b7 a4 d7+ Ke7 f5 a3 f6+ Ke6 f7 a2 f8R c3 h6 Qb6 d8N+ Ke7 d5 Qb5 e5 Na6 b8R Be6 d6+ Kd7 h7 Qc6 b5 Nc5 b6 Ra5 b7 Ne7 Bc4 Bd5 Rh2 Be4 Ne2 Ng6 Nd4 Ra3 Bb3 Ne6 Ra8 c2+ Kd2 g1R b8B f1R Re2 f2 Bc7 Rg8 h8N Re1 Nb7 f1R Rff2 Re8 Ba5 Rh1 Bc7 Ngf8 Ng6 Rh5 Ne7 Ng6 Ba5 Rb8 Bc7 Ke8 Ba5 Rfh1 Bc7 Rf5 d7+ Kf7 d8B Rh5 Ba5 Qd7 Bdb6 Reh1 Bc7 R1h2 Ke1 Re8 Bf4 c1R+ Bd1 Rcc3 Bb3 Rc4 Nc2 Rh7 Nd2 R2h3 Rc1 a1R Nb1 Rg7 Bd8 Nd4 Bdc7 Rhh5 e6+ Kf6 Nc6 Re5 e7 R1a2 N2b4 Ne6 Nc2 Rc8 e8B Rb4 Bf7 Re8 Ne7 Ra1 Bab6 Ra7 Ba5 Ra3 Bg8 Nd8 Bgd5 Ne6 Bc6 Kf7 Bcd5 Bf5 Bg2 Be4 Bh1
nkR4N/r1p1B2n/nNpR2Kn/2B3N1/2R1B3/B1q2r1r/b5N1/NR5q b - - 0 1 illegal: No possible last move, all moves rejected
3R2r1/3Nn3/4KpkN/2R1Bp2/1r1BNpqb/R2Bq2B/2NqN1r1/5Rn1 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 a4 e6 axb5 Nd7 f5 exf5 Qa4 Nb8 g4 Ke7 b6 Ba6 Qc4 Ke8 Qf4 gxf4 h3 Bd3 g5 Be4 Na3 Bf3 Nb1 Bg4 hxg4 Ba3 Rh4 Bd6 Rh1 Bf8 Kf2 a5 Kf3 c5 d4 c4 b4 a4 e4 a3 g6 a2 e5 c3 g5 c2 d6 Qe7 b7 Qc7 b5 Ne7 g7 Qd8 g8B Nc8 g6 Qe7 g7 Qh4 e6 Ne7 d7+ Kd8 d5 Nec6 b6 Ke7 d8R Kf6 d6 Nb4 d7 Qh2 e7 Qd2 e8N+ Kg6 Ne2 Nd5 Bh3 Nc6 b8B Nc3 b7 Ne7 Bb2 c1Q Rc8 Ra4 d8R Rb4 Na3 Qg1 Rf1 a1Q Nc2 Qaa7 Nf6 Qg5 Rc5 Qg4+ Kf2 Qa3 Ne4 h5 Be5 f6 b8N h4 Bc4 Rg8 Bd3 Qb3 Nd7 Qe6 Bg2 h3 Rhg1 h2 Bh3 h1R Rg3 Rg1 Rf3 Rh8 g8N Bh6 Rg3 Bg5 Nh6 Rg8 Re3 Na2 Bbd4 Nc1 Rf3 Bh4+ Rg3 Qe3+ Ke1 Qf2+ Kd2 Rg2 Kc3 Qe3 Rgf3 Qa2 Rg3 Rb3+ Kc4 Qb2 Rc6 Rb4+ Kc5 Qc3+ Kd6 Qe1 Rc5 Q1d2 N2c3 Ne2 Ke6 Ng1 Ne2 Qe1 Bc4 Q3d2 Ra3 Qeg3 Bb5 Qge3 Bd3
R2qNnr1/1RQ1rRnk/b1B1bQ2/5b2/p1QbR1R1/Q1r4R/1K4p1/7R b - - 0 1 illegal: No possible last move, all moves rejected
KNQbk1Bn/3Q2B1/bQ2bQ1n/3Q4/1r1q4/2b1B3/2p2B1r/nB1B1rR1 b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 g5 fxe5 h6 g4 Bc5 a4 Bf8 axb5 Qd6 Ra3 Qd8 Rf3 Qd6 Nc3 Qd8 Rf4 gxf4 Ne4 h5 g5 Be7 Nf2 Bf8 Ng4 hxg4 Kf2 c5 e4 f5 d4 a5 h4 c4 h5 a4 b6 c3 h6 f3 Ke3 a3 g6 g3 g7 g2 e6 a2 d6 a1B e7 f2 d5 f4+ Kd4 f3 Kc5 Nc6 b7 Bb2 b8Q Qd7 Kb6 Ra1 e5 Kf7 h7 Nd8 b5 Nc6 e6+ Kf6 e8Q Ra5 e7 Ra4 Ne2 g1R Be3 Ba6 Nd4 Ne5 Bd3 f1B Nc6 f2 Bb1 c2 Qec8 Kf7 e8B+ Kf6 Bh5 Qf5 Ka7 Rd4 b6 Re4 d7 Rb4 d8Q+ Be7 d6 Bc3 b7 Qg4 d7 Bh3 Qd5 f1N Ka8 Nh6 g8B Qd4 Bd1 Nd2 Qbc7 Bg4 b8B Nb3 Ba7 Ng6 Nb8 Be6 Qb6 Rf1 Rg1 Na1 Qdc7 Kg7 d8Q Kf6 Q8d6 Bd8 Qcc6 Kg7 Qdd7+ Kf8 Bf7 Rg8 h8B Rg7 Bg8 Rh7 Be5 Nh8 Qdc7 Bd7 Bg7+ Ke8 Qf6 Be6 Qba5 Qc4 Bac5 Qd4 Qab6 N6f7 Q7b7 Rh2 Q7a7 Nh6 Bf2 Qh4 Bce3 Qd4 Qad7+
1qbQ2r1/3Qk1r1/3p1b1n/5BQQ/BNn1np2/3NN3/Nn1N3Q/3nB2K b - - 0 1 illegal: No possible last move
1RQq4/bbk3Nn/4RpRb/2bQ4/b2QQr2/2rb2RQ/n1Q1Q3/1N1K4 b - - 0 1 illegal: No possible last move, all moves rejected
Q1Q4K/Q1B3pn/1BB5/Q1QN2q1/rr2n1p1/B2p3k/3b4/1N1B1rbQ b - - 0 1 legal: proof: d4 a5 e4 b5 a4 f5 exf5 c5 dxc5 Ra7 b4 Ra6 Ra3 Rh6 Rb3 Rh4 axb5 Rg4 b6 Rf4 b5 Ra4 Rb4 axb4 Bh6 Ra5 Bc1 Ra8 f4 h5 h4 Ra3 g4 Ra4 g5 Bb7 f6 Bg2 f5 Bd5 g6 Bf7 Rh3 Ra1 Rg3 Ra8 Rg4 hxg4 Qd6 Qc8 gxf7+ Kd8 Qd2 Qc7 Qd3 Kc8 Qd1 Qd8 Kf2 d5 Ke3 Kd7 Kf4 e5+ Kg5 d4 Kg6 e4 c4 e3 b7 b3 h5 d3 c6+ Kd6 h6 Ke5 b6 Kf4 c5 Kg3 c7 e2 c8B e1B c6 b2 c7 Be7 f8B Ba3 h7 Na6 b8Q Qd4 f7 Qd7 f6 Bf2 b7 Qd5 Nh3 Qg2 Bc5 Kh2 f8Q Qg1 f7 Qg3 Qa7 Qg2 b8B Qb7 Qd2 Kg3 Be2 Kh4 Qa5 Qf3 Bb7 Qg3 c8Q Qf4 Bd1 Bb4 Bc6 Nf6 Bb6 Bg1 Qfc5 Bd2 f8Q Qg5+ Kf7 Rg8 h8Q+ Nh7 Nf4 Kg3 Nd5+ Kh3 Bh2 Rb8 Bd8 Rb4 Bb6 Ra4 Qfd8 Re8 Qca8 Ree4 Kg8 Red4 Qdc8 Rdb4 Nbc3 b1R Ba3 Rc1 Nb1 Qf5 Qd6 Nc5 Qdf8 Qh5 Qf2 Ne4 Qfc5 Nhg5 Qh6 Nh7 Kh8 Qh4 Qf4 Qg5 Qf3+ Kh4 Qh1 Kh3 Be2 Re1 Bd1 Rf1 Bhc7+
5NB1/2N1QBp1/3qb1qr/2bN1B1p/k1K2N1n/5B1n/N5rB/3q1QBn b - - 0 1 illegal: No proof kernel
N3N2Q/1K2Q2q/7N/k2rRnQ1/QN1n2Q1/Rn3r1q/1bQp4/1qn2bR1 b - - 0 1 illegal: No possible last move, all moves rejected
1n3N2/K3Q3/1BN1br2/1r1Np3/1Bnrr2q/BBp5/B3rQk1/1Qb1Q1B1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 h6 h4 Kf7 b4 Ke8 f5 Bb7 Rh3 Ba6 Rf3 Bc8 Rf4 gxf4 g5 h5 Ra3 Nc6 Rg3 Nb8 Rg4 hxg4 Kf2 Kd7 d4 Kd6 h5 c5 b6 a5 g6 e6 f7 a4 h6 c4 b7 f3 Ke3 g3 g7 f2 f6 a3 b5 a2 h7 a1R b6 g2 Nf3 g1R Ne5 Rg6 Nc6 Qe7 Qe1 R1a6 Nc3 Rg5 Ba3+ Kd7 d6 Qd8 d5 Re5+ Kd4 R8a7 Kc5 Nh6 g8B Bg7 f8B Qe8 f7 Ra4 Be2 f1R Bd1 Rf6 Bb3 Rh5 Be7 Qd8 f8N+ Ke8 Kb5 Ng4 Bb4 e5 Be6 Rg8 h8Q Rh2 Qhh4 Re2 Qhf2 Bh6 Ba3 Bc1 Ba2 Nd7 b8B Ne3 b7 Rg4 Bc7 Rh4 b8Q Rb7+ Bb6 Re4 Bg8 Rb4+ Ka6 Rd4 Bc5 R7b5+ Ka7 Re4 Qb7 Nb8 Bd4 Be6 Qb6 Rbb2 Bb3 Rbd2 Ba2 Rc5 Qb1 Rb5 Bdc5 Rdd4 Bcb4 Rg6 Bh4 Rh6 Bg3 Qh4 Bh2 Rf6 Bg1 Bf5 Ne6 Kd7 Nf8+ Kc8 d7+ Kc7 Bb3 Be6 Ba2 Rc5 d8B+ Kd6 Nd1 c3 Bb6 Nc4 Ne3 Qf4 Bb3 Qh4 Ng6 Kd7 d6 Rb5 Nd5 Bg4 Bh7 Ke6 d7 Bf5 d8Q Bg4 Qh2 Kf5 Qe7 Bh3 Ba2 Kg4 Nf8 Kf3 Bg8 Be6 Qf4+ Kg2 Qff2+ Kh3 Bh7 Ref4 Bc2 Rfe4 Qe3+ Kg2 Bcb3 Rd1 Qf4 Rdd4 Qff2+
R2r2Q1/3Bnb2/2n4K/1b1N1N1B/2nq2r1/1Q4Rr/2nBknP1/2Q1Rn1N b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qc2 a4 Qd1 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Qe7 Na3 Qd7 Nb1 Qd8 Kf2 Ke7 Kf3 Kf6 d4 Kg5 e4 h5 e5 c5 a6 f5 d6 c4 a7 a3 d7 c3 d5 a2 e6 h3 d6 h4 e7 c2 e8N h2 b6 h3 b7 Nc6 b8R Nge7 Rb7 Rg8 Bd2 c1N Ng7 Nd3 Rb3 Nb2 Ne2 Nc4 Ng3 Qb6 d8Q Be6 d7 Bf7 Qb8 Qd4 Rg1 h1R d8Q h2 Be2 Kh4 Qbc7 Kg5 Qf8 Rd8 a8B Kh4 Nc3 Kg5 Rc1 a1N Nd5 Nc2 Ra1 Kh4 Qb7 Kg5 Qc1 Kh4 Ne6 Rg4 Ng7 Kg5 Re3 Kh4 Rd1 Kg5 Kf2 f3 Qg8 f4 Qb3 Kh4 Bb7 Kg5 Bc8 Kh4 Ra8 Kg5 Rg1 Kh4 Kf1 f2 Bd7 Kg5 Bf3 Kh4 Ke2 f1B+ Kf2 Be2 Rd1 Bf1 Be4 f3 Bg6 Kg5 N7f5 Bd3 Nc3 Kf4 Bh5 N4a5 Be6 Bb5 Bc8 Nc4 Bd7 Re1 Nh1 Re2+ Kf1 f2 Rg3+ Re3 Nd5+ Ke4 Qa1 Rc3 Ke2 f1N Qaa3 Nfe3 Kf2 Kd3 Kf3 Nf1 Qa5 Re4 Qc7 Rh4 Qf4 Rh3 Kg4+ Ke2 Kg5+ Rf3 Nf2 h1N Kh6 Rh4 Bb4 Rg4 Qc1 Rgf4 Bd2 Rh4 Rg4 Rfh3 Rg3+ Rg4 Rc3 Nhg3 Nh1 Ne4 Rg3 Nf2 Re1+
nq1b4/1r2Q1Nb/2BP2k1/R2b1r1q/b1QQ2B1/2bB2KR/4N3/rq2N2R b - - 0 1 legal: proof: c4 g5 f4 d5 cxd5 e5 b3 exf4 a4 b5 axb5 g4 Ra2 g3 Ra3 Nc6 Ra1 Nb8 h4 Qg5 h5 Qh4 Bb2 Ba6 Bd4 Nd7 Be3 Ne5 Bf2 Ng6 hxg6 Ke7 Qc1 gxf2+ Kd1 Bg7 g4 Bf8 Kc2 Kd7 Qd1 Qd8 g5 Ke8 Kc1 Bc8 d4 c5 Kd2 h5 e4 f5 Ke2 a5 Kf3 h4 d6 c4 g7 Kf7 b4 h3 d5 c3 d7 h2 e5 c2 d6 c1Q e6+ Kg6 e7 a4 e8N a3 b6 a2 b7 Ne7 b8Q Bb7+ Qd5 Rh7 g8B Nc8 b5 Nb6 Na3 Qb1 Bd3 f1R+ Kg2 f3+ Kg3 f2 Qc7 Qb8 d8Q Be7 Qd4 Bd5 Be6 Ra5 Bc8 Na8 b6 Rf7 Qdd7 Bd8 b7 Rd1 Ne2 f1B Qe7 Rb5 Rg1 h1Q Nc2 Qh5 Ng7 Bfg2 Rf1 Bge4 Rh1 Rb6 Ne1 f4+ Kf2 f3 Kg3 f2 Qcc4 f1B Bg4 Rf5 Rh3 Qc7 b8R Rb7 Rc8 Qb8 Rc5 Bfg2 Ra5 Bc6 Qg8 Ba4 Qgc4 Qb6 Rc1 a1B Rb1 Bc3 Rc1 Kh7 g6+ Kh6 Ne8 Qb3 g7 Qb1 g8B Kg6 Bd5 Bh1 Bc6 Bd5 Qa7 Bg8 Ng7 Bhd5 Qad4 Bh7 Qee4 Rd2 Qe7 Ra2 Nc2 Ra3 Rch1 Ra1 Ne1
5rn1/bR1P4/3N1qr1/4nnBR/N2B1BNQ/1nKQ1n2/Q5Rr/r1k4q b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 d4 Ke7 Kd2 Kd6 h4 a5 e4 g5 b4 c5 f6 g3 e5+ Kc7 e6 Kd6 h5 c4 b6 g2 f7 f2 e7 f1R h6 f3 b5 g4 b7 f2 b6 g3 h7 a4 Nc3 a3 Rh5 a2 Nf3 g1R Ne5 g2 Na4 Nc6 Ng4 Ne5 b8R c3+ Kc2 Re1 b7 f1N Bg5 Ng3 Qd3 Nf5 Kb3 c2 Kc3 Bh6 f8Q c1N Qf7 Nb3 Rb1 a1Q+ Rb2 Qd1 Rc2 Qf3 Rd2 Ra1 Rb2 Kc7 d6+ Kc6 e8N Qf6 d7 Bf8 d8Q Bc5 Rf2 Ba7 Nd6 Qh3 Re2 Qh1 Qde7 Rgc1+ Rc2 g1N Qd8 Rcb1 Rg2 Ngf3 Qde7 Rg1 Qfc4+ Nc5 Qa2 Nb3 Qd8 Kd5 Qe7 Ng6 Qe1 Nge5 Qg3 Ngh6 Qh4 Rf8 h8B Ng8 Rd8 Rb8 Rd7 Rbe8 b8B Re6 Rf2 Rg2 Rb7 Rh2 Bc7 Qh6 Rg2 Rg6 Bcd8 Qg7 Bf4 Qf7 Bdg5 Qf6 Nb6+ Kc6 d5+ Kc5 Ndc4 Kb5 d6 Kc5 d7 Kb5 Nd6+ Kc5 Kc2 Kb4 Qb1 Ka3 Na4 Ng3 Bg7 Nf5 Kc3 Nf7+ Be5 Qd8 Bg3 Qe7 Bd4 Qf6 Nb2 N7e5 Qbc2 Ka2 B3f4 Ka3 Qcf2 Ka2 Qb5 Kb1 Na4 Nd2 Qd3+ Kc1 Ne3 Ndf3 Qfe2 Bb8 Qa2 Ba7 Ng4+
1Qq5/3PQ1R1/1p2NBq1/4rnbr/R1nNb3/qR1B1n2/N6k/Q1b2KB1 b - - 0 1 legal: proof: c4 d5 cxd5 Bg4 e4 Bh3 b4 Bf5 b5 Bc8 b6 axb6 h4 g5 a4 gxh4 a5 f5 exf5 Bg7 a6 Bh6 axb7 Bf8 f4 Kd7 g4 Kd6 d4 c5 g5 e5 g6 h5 f6 e4 f7 h3 f5 c4 g7 h4 f6 c3 Qb3 c2 Bh6 c1B Nc3 e3 Qd1 e2 Qd2 h2 Bg5 h3 Ra4 Ra5 Qd1 Ne7 g8R Nd7 Be3 Ne5 Na2 Bh6 f8N Nc4 f7 Bg5 Ne6 Nf5 Nf3 Rh5 b8Q+ Qc7 Bf2 Bb7 Rg7 Rc5 Rg1 h1Q Rg3 h2 Bg1 Qg2 Rh3 h1Q f8Q+ Be7 Qfe8 Qg6 Kf2 e1N Bd3 Qh2+ Kf1 Qb2 Qf7 Qa3 Qf6 Kd7 d6 Re5 d5 Qc8 Nfd4 Nf3 Qh4 Bd2 Qa1 Bc1 Rh2 Bc6 Rb2 Ba8 Rb3 Bc6 Rg8 Beg5 Rg7+ Ke8 Rg8+ Kf7 d7 Kf6 d6 Be4 d8B+ Ne7 Ne2 Kf5 Qe1 Kg4 d7 Kh3 Rg7 Nf5 N2d4 Qb4 Bf6 Qa3 Qb4 Kg3 Qe7 Kh3 Bf2 Kh2 Bg1+
B1kB4/Qb1b1Nb1/3n1n2/n1B2p1b/2q1rb1N/2P4K/4RQ2/1NQRr2R b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kf2 f5 Kg2 Qh4 Nc3 Kd8 e4 d5 a6 g5 a7 g4 e5 d3 b6 g3 e6 d2 b7 d4 h6 d3 h7 Kc7 e7 Bg7 e8R Bd7 Nf3 Nc6 Ba3 Nf6 b8B+ Kb7 Re6 Re8 h8N Kc8 Bc5 Qg4 Qe2 d1N h4 d2 h5 Nf2 h6 d1B h7 N2e4 Qf2 Nd6 Nh4 Qe2 Kh3 g2 Rb1 g1B Bc7 Bh2 Nf7 Qb5 Re7 Bh5 Bd8 Rb8 a8Q Na5 Bg2 f3 Qg3 f2 Rbd1 f1B Qf2 Qa4 Nb1 Ba6 Qa7 Rb4 Ba8 Bb7 c3 Rf4 h8Q Qc4 Qh6 Rd4 Qc1 Bf4 Ree1 Re2 Rd2 Rde4 Red1 Re1 Re2
q1r1bRn1/Q1R3R1/N1PNB3/1b2q1p1/1N3qk1/B3n3/K1QB2r1/3qQ2q b - - 0 1 legal: proof: d4 b5 e4 h5 a4 c5 axb5 f5 exf5 cxd4 g4 hxg4 Bf4 a5 Bc1 e6 b3 a4 b4 Bd6 Ra3 Bc7 Ra1 Ba5 bxa5 Rh3 Kd2 Rh5 Ke1 Rh8 Kd2 Kf7 f4 Kf6 c4 g5 Kc2 d5 Kb2 d3 h4 d4 a6 g3 c5 a3+ Ka2 e5 h5 d2 b6 e4 c6 d3 b7 g2 h6 e3 a7 e2 h7 e1Q Nc3 Qf2 Nb5 Qe1 Nf3 g1Q Nfd4 Qee3 Nc2 Qeb6 Nd6 Bd7 Qe1 d1Q Nb4 d2 Bc4 Qb5 Be6 Na6 b8N Nc7 N8a6 Rc8 a8Q Qg3 Qa7 Nd5 Rh2 Ne3 Re2 Kg7 f6+ Kh6 f5 Kh5 f7 Qf4 f8B Qbe5 f6 Be8 f7 Qda5 Be7 Qd8 f8R Qda5 Bc4 Kg4 Rf2 Qad5 Rf7 Qh1 Rg7 Qa4 Bb3 d1B Bd2 Be2 Rb1 Bb5 Be6+ Kh5 Rf1 Qd1 Rb3 Qfg4 Rf8 Qgf4 Nf5 Kg4 Rd3 Qb8 Rd7 Qa8 Rc7 Qa4 Kb1 a2+ Ka1 Qc2 Nd6+ Qcf5 Kb2 a1Q+ Kb3 Qd1+ Ka2 Nh6 Rf6 Rf8 h8Q Ng8 Qh2 Qe5 Bf7 Qff4 Be6+ Kf3 Rf5 Kg4 Qh7 Rf6 Bf8 Rh6 Be7 Rh2 Rf8+ Kf3 Qc2 Rg2 Nf5 Kg4 Nd6+ Qff5 Bf6 Qf4 Bb2 Qe5 Ba3 Qf4 Bc4 Q5e5 Be6+
4B2Q/1q1Qbr1r/n5KB/3q1RN1/6p1/N3qQr1/1B2Pb1N/3kRnRq b - - 0 1 illegal: No possible last move
6Rk/1qN2r2/2R1nQR1/N4Np1/1n1QKPn1/2rBb1q1/2qQ4/bq1BB3 b - - 0 1 legal: proof: c4 b5 e4 h5 a4 f5 axb5 d5 cxd5 fxe4 g4 hxg4 b6 a5 b3 a4 Qe2 a3 Qf3 Bd7 Qd1 Ba4 bxa4 Ra5 Bd3 Ra6 Bf1 Ra8 Ke2 Kf7 Ke3 c5 d4 e5 h4 g5 f4 Kg7 d6 c4 a5 g3 b7 g2 d7 a2 a6 c3 d5 c2 h5 Bd6 a7 Bf8 d6 Ne7 h6+ Kg8 Na3 Na6 b8N Qc8 d8R Rh7 d7 Nc7 Nb5 Ng6 Nf3 Qb7 Bd2 c1Q Nfd4 Rf7 Nbc6 Qb2 Rc8 Qc2 Rb1 a1Q Rb3 Qab2 Bc3 Qbb1 h7+ Kg7 Qe1 g1B+ Qf2 Ba3 d8Q Bb2 Bd3 Ba1 Bb4 Nf8 Bc3 Ne8 Qb6 Nf6 h8Q+ Kg6 Qh2 Kg7 Nf5+ Kg8 Rc7 Rd8 Na5 Rd5 Bb4 Rc5 Qg2 Rc4 Rh7 Rc5 Rg7+ Kh8 Be2 Rc6 Bd2 Rc5 Bd1 Ng4+ Ke2 Rc6 Qfd4 e3 Kf3 e2 Bb4 e1Q a8B Qb8 Bd2 Rc5 Bd5 Qb7 Be4 Bf2 Re3 Rc3 Qe6 Bg1 Rc6 Qh4 Nc7 Qg3+ Ke2 Bf2 Qe7 Bg1 Rcg6 Bf2 Bd3 Bg1 Qf6 e4 Bb5 Rc4 Rf3 Ne6 Rc3 e3 Qf2 Rc5 Bd3 Rc4 Rb3 Rc5 Rb6 Rc3 Rc6 Qh4 Kf3 e2 Qh2 Be3 Qg2 Qg3+ Ke4 Qcc1 Na6 e1N Nc7 Nc2 Be1 Nb4 Qd2 Qcc2 Rg8+
1nr4Q/K5br/br2qrR1/3qPk2/QB2p2B/3QN2N/2RN1q1R/1b5B b - - 0 1 legal: proof: h4 d5 d4 g5 c4 gxh4 a4 e5 e3 b5 axb5 f5 cxd5 f4 Qa4 Nc6 Qb3 e4 Qd1 Ne5 dxe5 fxe3 Ke2 Kf7 b4 Kg6 f4 h5 g4 c5 d6 a5 b6 c4 g5 c3 d7 h3 b5 c2 f5+ Kg7 f6+ Kg6 f7 h4 b7 h2 b8N a4 b6 a3 b7 a2 Nc6 h3 b8Q Rh7 Nd4 Bg7 f8B Nf6 Bg2 Ra6 Nf5 Rb6 Bb4 Ba6+ Qd3 Qe7 d8Q Nd7 Qa8 Nb8 Qh8 Qe6 Nd2 Qd5 Rb1 a1Q Rb2 Qaa2 Qc6+ Qe6 Qa4 Qad5 Ra2 Rh6 Bca3 c1R Rc2 Rh7 Be7 Rf1 Bab4 Rf3 Nh6 Rf7 Ng4 Kf5 g6 Rf8 Bh4 Rf6 Kf1 e2+ Kf2 e1R Bf3 Rc1 Ke3 Bc4 Bg2 Ba2 Bf3 Bb1 Bg2 Qa8 Kd4 Qa7 Kc5 Qaf7 Ngf3 Qfd7 Ng5 Qb7 Re1 h1B Re2 h2 Nh3 Qa7 Bf3 Bg2 Rf2 h1Q Re2 Bh6 g7 Qd1 g8R Bf1 Rg6 Bg7 Rh2 Be2 Bh1 Qaf7 Qe3 Ba6 Qe2 Qf1 Qd3 Qf2+ Qd4 Qb3 Rc3 Rbd6 Rc4 Qe6 Rc3 Nc6 Kb6 Nb8+ Ka7 Rb6 Qd3 Qbd5 Rc7 Rc3 Rc5 Rb3 Rc1 Rc3 Rc2 Rc8 Ne3+
K2N3r/n1N3pQ/PkQq4/2nb3B/2r4Q/n3R3/n2r1nrN/1BRR3B b - - 0 1 legal: proof: f4 e5 c4 a5 b4 axb4 g3 d5 cxd5 f5 Bb2 h6 Bd4 Be7 Be3 Bg5 fxe5 f4 Qc2 f3 Qd1 Be7 Bg5 hxg5 Qc2 Bc5 Qc1 Be3 Qd1 Bf4 gxf4 Qd7 Qc1 Qd6 Qd1 Qd8 Kf2 Kd7 Ke3 b5 Ke4 c5 a4 Kc7 d4 f2 h4 b3 f5 b2 f6 b4 a5 b3 d6+ Kc6 e6 g4 h5 g3 a6 c4 d5+ Kc5 f7 g2 f8R c3 e7 c2 e8B c1R h6 Qa5 h7 Bh3 d7 Kb6 d8N Be6 d6 Rc2 d7 Rc8 Rf3 Qc3 Bh5 Kb5 Qc2 Nc6 Na3+ Kb6 Rc1 b1R Re3 b2 Nf3 g1N Nh2 Qd2 Bg2 f1N Nb5 Na7 Nc7 Ne7 Bgf3 Nh3 Qc6+ Ka5 Ke5 Bd5 Kd6 Ng3 Rhd1 Nf2 Bh1 Ra1 Bg6 b1N Bf5 Na3 Bb1 Ra2 Kc5 Rf8 h8Q Rf6 Qh7 Rg6 Rf3 Qf4 e4 Rd2 e5 Qf6 e6 Rg4 Qb7 Nec6 e7 Nb4 e8B Na2 Bh5 Qg6 Qc6 Rab8 Rd3 Nge4+ Kd4 Rbb2 Ke5 Nc5 Re3 Qd3 Kd6 Rbb8 Nf7 Ra8 d8Q Rg2 Qh4 Rh8 Nd8 Rb8 Na8 Rb4 Kc7 Rc4 Kb8 Qg6 Nc7 Qd6 Qd7 Kb6 Qc8 Bf7 Ka8 Bg8 Qd7 Bd5+ Qc6+
QQRN1R1N/1R4br/Q4b1b/p3rB2/2r4P/1r3B2/1q1BkNK1/2qnb3 b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 h3 fxe4 Nc3 b5 axb5 g5 Nce2 g4 Nc3 g3 Nb1 Bb7 Bf4 h5 Bd3 h4 Bh6 Bd5 Bc1 Be6 Bf1 Bg4 hxg4 h3 Bh6 h2 Ra3 Nc6 Bd2 Nb4 Bc1 Nd5 Ra6 Nf4 Ra1 Nh3 gxh3 Rc8 Nd2 Rb8 Nb1 Ra8 c4 Kf7 f4 Kf6 b4 a5 h4 d5 f5 Ke5 c5 e3 c6 Ke4 f6 e5 b6 g2 c7 e2 Kf2 d3 c8B d2 b5 Kd3 g5 e4 g6 e3+ Kg3 d4 g7 Ne7 g8Q Rb8 f7 Rh7 b7 Bh6 f8R Qb6 Nh3 g1B Ng5 Nd5 Kg2 Nc3 Nf7 Qf6 Qb3 d1Q Bd2 Qc1 Qe6 Nd1 b6 Bf2 Rg1 h1R Nc3 Bg3 Ra2 Be5 Rc2 Rh3 Bd7 Rc8 b8N Rc4 b7 Qh8 Nc6 Bf6 b8Q Rf3 Kh2 Rf5 Rg5 Re5 Bg2 e1B Rg7 e2 Bf3 Bf2 Qa8 e1B Ncd8 Bfe3 Qea6 Bef4+ Rg3 Bhg7 Ne4 B4g5 Bf5 B5h6 Bb4 Ke3 Kg2 d3 Nf2 d2 Rh3 Rd4 Rc8 Rc4 Bb7+ Ke2 Rb3 Nc3 Bbe4 d1R Rb1 Rd3 Bf3+ Ke3 Qb8 Nd1 Rb2 Rb3 Bc3 Ra3 Rb7 Rb3 Bc6 Ke2 Bd2 Be3 Qba8 Bgh6 Qg3 Bhg7 Bce4 Beh6 Qf4 Qg8 Nh8 Qd5 Qg3 Qd4 Bc6 Qdb2 Qf4 Rc5 Qfb8 Re5 Bf3+
BRq2Q2/2Rq1p1r/q2r1q1r/q7/2n1nR1k/N1P5/2QBB3/QKN1q1N1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 cxd4 g5 b5 axb5 Qc7 Na3 Qb6 Nb1 Qd8 h3 h5 Ra2 Bb7 Ra4 Bf3 Bg2 Bg4 Bf1 g6 Ra6 Bh6 gxh6 g5 Ra4 Bf5 Ra6 g4 Ra5 g3 Ra1 Bg4 hxg4 Qa5+ Bd2 Qb6 Bc1 Qd8 Kd2 Ke7 b4 Kf6 e4 Kg5 b6 a5 e5 d5 c3 f3 h7 h4 b7 g2 e6 a4 b5 h3 Kc2+ Kh4 e7 a3 e8B a2 g5 f2 g6 h2 g7 d3+ Kb2 d2 b6 d4 Ba4 d3 Bb3 Qf6 Na3 Nc6 b8Q Ne5 b7 Ra6 Qa8 Rd6 Qc2 d1Q b8R d2 Bd5 Qe1 Be2 d1Q Bd2 f1Q Qa7 Q1f5 Ba8 Qc8 Rb1 Qa6 Rb7 Qa5 Rc7 Nc4+ Ka1 Qef1 Qa6 Q1f5 Qa7 Qc8 Qa6 Nh6 g8Q Nf5 Qf8 Ng3 Qa7 Ne4 Qa6 Rg8 h8N Rg7 Qa7 Rh7 Ng6+ Kg3 Ne5 Kh4 Nd3 Rh6 Nh3 g1Q Nc1 Qge1 Rf1 h1R Ng1 Rh2 Bh5 Qdg4 Rb8 Qgd7 Qa6 Rg2 Bf3 Rg7 Be2 Rgh7 Rf4+ Qg4 Qb6 Qa4 Qbb1 Qaa6 Nb5 Ne3 Kb2 a1Q+ Kb3 Q1a5 Qa1 Nc4 Na3 Rc6 Ka2 Rd6 Rf3 Qge6 Kb1 Qed7 Rf4+
kNB1q1n1/B7/n2K1N2/pp6/1Q2B1R1/Nr1n1QnR/br3P1b/1Rn3Q1 b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b4 Na6 a4 Nb8 b5 Nf6 b6 axb6 Qe2 Ng8 Qg4 Na6 Qd1 Nb8 a5 Kd7 a6 Ke8 Qa4+ Qd7 Qb4 Qd8 Qa5 bxa5 Ke2 Kd7 Kd3 e5 Ke4 g5 h4 b5 d4 c5 f6 Kc7 f7 g4 h6 g3 h7 c4 d6+ Kc6 d7 c3 a7 Kb7 Kd5 e4 h5 e3 h6 g2 Rh4 c2 Na3 e2 Be3 e1N Rg4 c1N Ne2 g1N Rb1 Qb6 d8Q Ng2 Nc3 Bf5 Qe7+ Nd7 Qb4 Rc8 a8B+ Ka7 Ne4 Re8 Nf6 Nh4 Bh3 Bd6 f8Q Qb8 Kc6 Ng6 d5+ Nc5 Qf7+ Bc7 d6 Qd8 d7 Ne5+ Kd5 Qc8 d8N Ned3 Bb7 Bh2 Nc6+ Kb6 Qg7 Nge2 Nb8 Ng3 Kd6 Be6 Be4 Ba2 Qg5 Ka7 Qf4 Bd5 Qf3 Ka8 Bd4 Na6 Bc5 Ne7 Ba7 Rhf8 h8R Ng8 h7 Re5 Rg5 Qe8 Bc8 Rf7 Rg7 Rc7 Rg4 Rc3 Rh4 Rb3 Rh3 Ne7 Rg8 Rb2 Rg5 Ng8 h8Q Rf5 Qhh5 Rf4 Qg2 Rf3 Rg4 Re3 Qg1 Rf3 Nc6 Ba2 Qf7 Ne1 Qh5 Rfb3 Qd5 Ned3 Qf5 Nb8 Qf3 Na6 Nb8+
1KQr2B1/1n1N2B1/5r2/p2P1q2/N2Rb1Q1/rB1pN3/rq2RRQ1/nb1k4 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 f5 exf5 gxh4 d4 cxd4 c3 d3 Kd2 Nh6 Ke3 d2 Ke2 Ng8 Kd3 d5 Ra5 d4 Ra1 Bg7 Kc4 d3 Kb3 Bd4 cxd4 Nc6 Kc3 Nb8 Kb4 Kf7 Kc5 Kf6 f4 h5 g4 a5 b4 e5 g5+ Ke7 b6 e4 f6+ Ke6 b7 Kf5 f7 e3 f8R+ Ke4 g6 h3 d5 h4 g7 e2 b5 Ke3 b6 e1Q f5 h2 f6 h3 f7 Qd7 Ra4 Nh6 g8B Qf2 Rd4 Nf5 Bb2 Ra6 Qg4 d1B Nc3 Kd2 Na4 Bc2 Be2 Ne3 Bd1 Bb1 Ne2 Qdf5 Kd6 Nc6 Kc7 Nd8 b8N Nb7 Re1 h1R Bb3 h2 Nd7 Nc2 Kb8 Na1 Qg2 Rf1 Qg4 h1R Qg2 Nd6 b7 R1h2 Rf4 Nc4 Nac3 Nd6 Nf6 Ne4 Qg1 Qe6 Na4 R8h7 Bc4 Nc5 Qg4 Bc2 Kc7 Nab3 b8Q Nb7 Nd4 Qg2 Re5 Ra1 Qa8 Bd7 Qc8 Bb1 Kb8 Ra3 Re3 Na1 Bb3 Qe2 Ree4 Qf2 Re8 R7h6 f8Q Rd6 Re7 Be8 Qf7 Rd8 Nd7 Qe2 Qh7 Rg6 Qhh3 Rh6 Rf3 Bg6 Qhg3 Rf2 Qg2 Ke1 Ref4 Qc2 Bc3+ Kd1 Re4 Rd2 Re2 Qf6 Rff2 Bf5 R7e6 Bh7 Rb6 Be4 Rb4 Qf5 Rc4 Kc1 Rb4 Qa2 Rc4 Rb2 Nc2 Kd1 Bh8 Rc6 Rd4 Rf6 Bc4 Qb3 Bg7 Qc3 Bb3 Rba2 Ka7 Qb2 Ka8 Qf3 Kb8 Qf5 Ne3#
2r5/p3r3/1kq2N2/3rn1b1/2QN1N2/1qR2Rrp/Q1B1BP1K/1b1nQR1B b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 c4 fxe4 h4 d5 cxd5 g5 hxg5 Qd6 Ba3 Bf5 axb5 Bg4 b6 Bc8 b5 Qd8 Bb4 cxb4 d4 Kd7 g4 h5 d6 e5 b7 e3 g6 b3 b6 Kc6 d5+ Kc5 g7 e2 d7 h4 g5 b2 g6 e4 d6 h3 Na3 b1R Nb5 Kc6 Nd4+ Kc5 Ra3 Nf6 g8B Bh6 g7 Bf4 Rc3+ Kb4 Bb3 Ka5 g8B Nh5 Bc2 Qc7 d8R Bf5 d7 Rb3 Rf8 Nc6 b8Q Ng3 d8Q Rh5 b7 Bg5 Qbc8 Kb6 b8N Ne5 Qd5 Qc6 Qc4 Bh7 Bd5 Nf5 Qe6 Ne3 Rf3 Bf5 Qb1 Nd1 Qa2 Ra3 Na6 Rb3 Nc7 Rc8 Ne8 Bh7 Qe7 Ra3 Nf6 Bg6 Ne6 Bf5 Nf4 Bh7 Kd2 e1R Ne2 Bf5 Nd4 e3+ Kc1 e2 Kd2 Ra5 Bde4 Rd5 Qe8 Rh7 Qe6 Re7 Rg1 Nb2 Ke3 Ra1 Rh1 e1Q+ Be2 Qb1 Rf1 Qd1 Rg3 Qb1 Bh1 Bd3 Rf3 Nd1+ Kd2 Qb3 Ke1 Bh4 Rg1 Bg5 Kf1 Ng6 Qe3 Ne5 Qd2 Rb1 Qe1 Bh7 Rgg3 Be4 Kg1 Ra1 Kh2 Bh7 Qb2 Ra3 Qa2 Bf5 Rg1 Bd3 Rf1 Bh7 Bf5 Bg6 Bg4 Bb1 Bf5 Rce8 Rce3 Qb4 Bc2 Rc8 Rg3 Qb2 Re4 Rf3 Re3 Qbb5 Rc3 Rd3 Re3 Qb3 Re4 Rf3 Ree3 Rg3 Rf3
1Kn5/3qN3/rB2PRnb/Qn4R1/1k1p2rQ/2NqB1Q1/r1pRq3/3B3N b - - 0 1 illegal: No possible last move
1qk1Q3/1N2QK2/2N4B/7N/nRrp1RBp/b3qB1n/P1r4r/qQR2q2 b - - 0 1 illegal: No possible last move
1B1rk1b1/5n1R/3Bq1q1/qNB4p/4Q2Q/1p5n/Q2rN2P/RqR2rNK b - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 f5 e6 c6 a4 c5 axb5 cxb4 f4 Nc6 e4 Ke7 e5 Nb8 Bd3 Ke8 Be4 fxe4 f5 Bc5 g3 Be7 Ra2 Bg5 Ra1 Bf4 gxf4 Qe7 Be3 Qg5 Bc1 Qd8 Kf2 a5 Kg2 g5 c4 h5 e7 d5 f6 a4 f5 b3 c5 e3 b6 a3 b7 e2 c6 e1Q c7 g4 Qe2 d4 Qa2 g3 Nc3 d3 Bf4 d2 Nce2 Nd7 b8B d1Q Be3 Ra4 Bc5 Nf8 Bd6 Ba6 c8N Qb1 Na7 Ne6 Nb5 Ng5 Bc5 Qda5 f7+ Kd7 f8R Rd4 f6 Rd2 f7 Nh3 Rc8 Nh6 f8B Nf7 Rc6 Bc8 Rh6 Ke8 Rh7 Qg6 Bh6 Be6 Bf4 Kd7 Rc1 Rd8 Ra1 Bc4 Bbd6 Qe6 Bb8 Qb1 e8Q+ Kc8 Qh8 Kd7 Qf6 Ke8 Qh4 Qbg6 Bh6 Qb1 Bhf8 Qbg6 Bfd6 Qb1 Qc2 a2 Qb2 Qbg6 Rc1 a1Q Qa2 Qeg4 e6 Qab1 e7 Q4e6 Re1 Qbd3 Ra1 Qb1 Nf3 Bd5 Rc1 Bc4 Ng1 Bd5+ Kf1 g2+ Ke1 Qe3 Nc3 Ne5 Nf3 Kd7 Nb5 Bg8 e8Q+ Kc8 Qb2 Nf7 Qa2 Qee4 Qe5 Kd7 Qd5 Qee6 Qde4 Ng5 Kf2 Ke8 Kg3 g1R+ Kf2 Rgd1 Kg2 Rf1 Ng1 Nh3+ Kh1
Br1B2n1/Rq1pr1kr/Qb4n1/2q5/Qp2NB2/3N4/nN2RPKn/1R4Q1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b5 a4 Ba6 Be3 axb4 Bf4 b3 Bh6 b4 Bc1 Bb5 axb5 Qc8 Bh6 Qc7 Bc1 Qd8 h4 Kf7 c4 e5 b6 g5 f6 g4 c5 g3 b7 g2 h6 e4 c6 e3 c7 d3 c8N b2 h5 e2 h7 Ne7 h6 Ra5 Nd2 b1Q Nd6+ Kg6 f7 Rb5 N2c4 Qe8 Qa4 Kf6 Nf3 g1N Ne4+ Kg6 Nb2 Rh5 Bg2 Qc2 Bf4 Nbc6 b8Q Qc5 Qb7 Qb8 Qba6 Qb7 Ra2 Bg7 f8B Ng8 Be7 Bd4 Bd8 Kf7 Ra1 Nce7 Ne5+ Kf8 Rb1 Ng6 Rh3 Rh4 Re3 Rh1 Kd2 e1R Re2 Qcb5 Bf3 Bb6 Bg2 Qc5 Bf3 N8e7 Bg2 Rg8 h8R Rh4 h7 Kg7 Bf3 Re8 Rf8 Ng8 Rf6 Rh5 Rc6 Re7 Rc7 Rc1 Bg2 Rc2+ Ke1 d2+ Kf1 d1N Bf3 Nc3 Ned3 Na2 Bh1 Nf3 Kg2 Nh2 h8Q+ Kf8 Qc3 Rhh7 Qe1 Kg7 Qg1 Rc3 Nc1 Rch3 Ncd3 R3h5 Rc8 Rd5 Ra8 Rd6 Ra7 Rc6 Kg3 Rc8 Bf3 Rb8 Kg2 Qbc7 Nd2 Qc8 Ba8 Qb7+ Ne4
3bQ3/1p3Pn1/R3b2N/1N2Qn1p/2BN1R1Q/2qk3q/1q3RBB/q1rn1K2 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ra6 h5 Rg6 hxg6 Nb8 a4 Kd7 d4 Kd6 a5 c5 a6 e5 g7 h5 g6 f3 f6 e4 f7 e3 a7 b3 a8R c4 R8a2 c3 Bc4 e2 Rh4 c2 Na3 b2 Rf4 Nh6 g8B b1Q g7 Be7 Bh7 Qd7 g8N Qb2 Be4 Nf5 Nh6 Bd8 Qd3 Qe6 Qc3 Nd7 Be3 Nf8 Nb5+ Kd7 d6 c1Q+ Kf2 e1N+ Kf1 f2 d5 Ng2+ Qe1 Qcc3 Nf3 Qef6 Bc5 Ne6 Nfd4 Neg7 Bb6 Qh4 Bc7 Qhh3 Bf3 Re8 Qe5 Re6 Ra6 Rg6 Rd1 Rf6 Rd2 Nge3+ Ke2 Nd1 Bg2 Rg6 Kf1 Rg3 Rc2 Rd3 Re2 Rd2 Bb8 Rc2 Bc7 Rc1 Bb8 Bb6 Rd2 Kd8 Rc2 Be6 d7 Ke7 d6+ Kf8 d8Q+ Ne8 d7 Rb1 Qh4 Nde3+ Ke2 Neg7 Ba2 Rg1 Qe4 Ba5 Qg4 Ke7 Rf3 Kf6 Bh2 Bb6 Rf4 Rf1 Qd3 Ke5 d8Q Rg1 Qe8 Bd8 Bc4 Rb1 Qg3 Rg1 Kf3 f1Q+ Rf2 Qfa1 Qe2 Rc1 Qe1 Qbb3 Ke2 Nd1 Qh4 Qbb2+ Kf1+ Qce3 Be2 Qec3 Nf3+ Kd5 Bc4+ Kc5 Qe5+ Kb4 Be2+ Kb3 Nfd4+ Kb4 Bf3 Kc4 Bd5+ Kd3 Bc4+
1NbRB2N/rrB1b3/4k1b1/1NQ1pRbp/3r1R2/2n1bP2/2b3Q1/3QB2K b - - 0 1 legal: proof: a4 c5 h4 g5 d4 cxd4 e4 b5 axb5 Qb6 f3 Qf6 e5 g4 e6 Qg5 hxg5 fxe6 Nd2 e5 Nb1 e4 f4 Nc6 Be3 Ne5 Bc1 Nf3+ gxf3 Bb7 Nh3 Ba6 Ng1 Bc8 Kf2 Kf7 Kg2 h5 b4 d5 c4 a5 c5 e5 g6+ Kf6 g7 g3 b6 d3 f5 d2 b5 a4 b7 a3 b8N d4 b6 d3 c6 e3 c7 a2 b7 e2 Na3 e1B Rh4 Bd6 Nb5 Be7 Rf4 Rh7 Nh3 Ra4 Ng5 Rd4 Nf7 Bf2 Nh8 Be3 Rb1 a1R Kh1 Ra2 Bb2 Ra7 Bc3 g2+ Kh2 g1B+ Kh1 Nh6 g8Q Nf7 Qg2 Ng5 Rc1 Ne4 Ra1 Bd7 c8Q Rg7 Qc7 Bc8 Qc5 Bgf2 Bb4 Bh4 Ra4 Nc3 Ba5 Re4 Rd4 Bg5 Rd8 Rd4 Bb4 Bd6 Be2 Ke7 f6+ Ke6 f7 Bde7 f8R Rf7 Qa1 d1B Rf5 Bc2 Qd1 d2 Rf4 Rh7 R8f5 Bb1 Bd3 Rg7 Be4 Rh7 Bc6 Bc2 Be8 Be4 Qc2 d1B Qcd2 Bdc2 Qd1 Na4 Be1 Nc3 Na6 Rg7 b8B Rf7 Bc7 Rh7 Rf8 Bg6 R8f5 Bef6 Bb8 Rhb7 Bc7 Be7 Nb8
QnQ1B1rq/3n1P2/2R1r1R1/2pppk2/K3bN2/5N2/2BQ2Rb/1N1nb1B1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 d4 Nh6 c4 Ng8 d5 Bb7 d6 cxd6 Nc3 Ba6 Nb1 Bc8 c5 Nc6 Qd4 Nb8 c6 Qc7 Qd5 Qd8 Qc5 dxc5 Kd2 Kf7 Kc3 Kf6 Kb3 g5 f4 d5 h4 a5 b6 e5 b7 g4 c7 g3 h6 g2 h5 Rh7 Bd3 Ra6 Ka4 Rb6 b4 Be6 c8B Bf7 b5 Qd6 Bc2 Bg6 Bd7 Qc7 Rh2 Na6 b8Q Qc8 Qa8 Nb4 Be8 Qc7 Nf3 g1B Rg2 Qf7 Be3 Rg7 h7 Qe6 h8N Nc6 h6 Qd7 h7 Bh2 Bg1 Qd8 Qc8 Ra6 b6 Nb8 b7 Re6 Ra2 Be7 Rb2 Bd6 Rb6 Bc7 Rc6 Bb6 Nf7 Bc7 h8Q Bb6 Qh6 Bc7 Ka3 a4 N7g5 Ba5 Nh3 Bd2 Rd6 Be1 Rc6 Nd7 b8R Ne7 Rbb6 Rg8 Ka2 a3 Kb3 a2 Ka4 a1N Qg5+ Kg7 f6+ Kh7 f7 Be4 Qa8 Qb8 f8Q Qc8 Bd1 Nc2 f5 Ne3 Bc2 Nd1 f6 Qb8 f7 Qd8 Rc8 Nc6 Qd2 Ncb8 Nf4 Qf6 Rcc6 Qh8 Qe7 Kh6 Qd8 Kh7 Qc8 Kh6 Ng6+ Kg7 Ra6 Kf6 Nf4 Kf5 Rab6 Re7 Rcg6 Re6 Rc6
NR1k2r1/K2b2Pp/1Q3n1B/p1Q1n1n1/3r3N/1Np4q/R4Q1R/B3b1qB b - - 0 1 illegal: No possible last move
Qbr1R1N1/r2npk2/N2p1B2/nR1Q1n1N/6P1/p3bB2/1r1R2QK/2B4n b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 d4 cxd4 f5 b5 axb5 Bb7 h3 Bd5 f6 Be6 Kd2 Bf5 gxf5 g4 Ke2 g3 Ke1 Qc7 Nc3 Qf4 Nb1 Qg4 hxg4 Bg7 Ke2 Bh6 Ke1 Bf8 b4 a5 c4 h5 b6 a4 f7+ Kd8 b5 d6 c5 e3 f6 g2 b7 d3 c6 h4 b6 e2 Kf2 e1N c7+ Kd7 c8R Ke6 Nh3 a3 Kg1 d2 Kh2 Rh7 Nc3 Nc2 Rb1 Ra4 Rb5 Nd4 Nf4+ Kd7 Re8 h3 Ne4 Ra7 Nh5 Ke6 Be2 Ndc6 Bf3 Nd7 b8N Rh8 b7 Bh6 f8Q Na5 f7 Be3 Na6 Nh6 b8Q Nf5 Qa8 Rg8 Qc2 d1R Nef6 Rd2 Rd1 Rh8 Qcc6 Rb2 Rd2 Rg8 Qcb7 Rh8 Ng8 g1B+ Kh1 h2 Qh6+ Nf6 f8B Kf7 Bg7 Nd7 Qg5 Bgf2 Kg2 h1N Be5 Bb6 Qc6 Bfe3 Bf6 Bc7 Kh2 Bb8 Bd1 Rc2 Qg2 Rc8 Bf3 Rh6 Be5 Re6 Bg7 Re4 Bf6 Rb4 Qb7 Rb2 Qa8 Nh6 Qe5 Nf5 Qed5+
6Rn/B1pNK1Nn/5Pbb/2Q1pq1B/k1B4b/R1q1nQN1/b5Rp/7Q b - - 0 1 legal: proof: e4 d5 a4 a5 c4 dxc4 h4 b5 axb5 f5 h5 f4 h6 Ra7 Rh4 Rb7 Rh1 gxh6 Nf3 h5 Ng1 h4 g4 h6 f3 Rb6 g5 Rc6 Na3 Rf6 Nb1 Rf5 exf5 Bd7 Bh3 Be6 Bf1 Bc8 Kf2 h5 Rh3 Rh6 Rh1 Re6 Bd3 Re2+ Kf1 Rg2 Ke1 Rg4 fxg4 Nc6 Bf1 Nb8 Kf2 Kd7 Kf3 e5 Ke4 h3 Kd5 c3 d4 h4 b4 h2 g6 a4 g7 a3 g5 a2 g6 f3 b6 c2 b5 h3 b7 f2 f6 Nh6 g8R Ng4 g7 Nc6 b8Q Bd6 b6 Na5 b7 Nc4 Nf3 Ba3 Nbd2 Qe7 Qa8 Nd6 Bc4 f1N Ne4 Nd2 Rg1 h1B Rb1 a1Q Rb3 h2 Rg2 Qb1 Nfg5 Bb4 Qf3 Nf7 Ne6 Nh8 Ng3 Ne4 Be3 c1B Qa5 Qd8 Qc5 Ng5 Bf2 Nh7 Be3 Qf8 b8N+ Ke8 Bf2 Bh6 Nd7 Ne3+ Kc6 Qg6 d5 Qf5 d6 Be1 Nb6 Qe4+ Qd5 Qd4 d7+ Kf7 d8Q Ba6 Kd7 Nf1 Ne2 Qa1 Qf5 Bb4 Ra3 Qc3 Rg3 Qa1 Bb3 Ba5 Q8a8 Be1 Bd1 Be4 Rg4 Bad3 Rb3 Qc3 Qa1 Qa8 Rg2 Bb1 Be3 Bh4 Ng3 Ba2 Bh5+ Ng6 Bc5 Ne3 Qf3 Bd3 Qd6 Qe4 Qh1 Bdb1 Kd8 Qg4 Nd7 Qe4 Bg4 Nh8 Ba7 Qf4 Bh5+ Bg6 Qc5 Qf5 Nd4 Qfd3 Ndf5 Ke6 Qf8 Qe4 Qb4 Kd5 Ke7 Kc6 Qd4 Qb4+ Qd6+ Kb5 Qc5+ Ka4 Rd8 Qe1 g8B Nd1 Bc4 Ne3 Ng7 Qc3 Rg8 Qf5 Ra3+
7n/2p3P1/1N1pbRBk/2bp3N/2rr4/QRQ2n2/1BNQ1Kp1/1q1B1nR1 b - - 0 1 legal: proof: f4 h5 d4 g5 b4 b5 c4 g4 cxb5 e6 a4 h4 a5 h3 b6 hxg2 a6 Qg5 b5 Bh6 fxg5 Bf8 Nf3 g1Q d5 Qc5 Ng1 exd5 Nf3 Qc6 Ng1 Qb7 axb7 Rh4 Nd2 Rh5 Nb1 Rh8 e4 a5 h4 f5 g6 d6 e5 f4 h5 f3 e6 a4 e7 a3 h6 a2 h7 g3 Qd2 g2 Nh3 Ra6 Kf2 Nh6 Be2 Ng8 Bb2 Ra8 Na3 Bh6 Nc2 Nf6 Rag1 a1Q Nf4 Be6 Bd1 Nbd7 b8N Qb1 b7 Ng8 b6 Ra4 Nh5 Ne5 Nd7 Rd4 g7 Kf7 b8R Kg6 b7 Bg5 e8B+ Kh6 Nb6 Ne7 Bg6 Rf8 Rf1 Rff4 Rhg1 Rc4 Qc3 Rfd4 Qa3 Bc1 Qc3 Bd2 Qa3 Bb4 h8Q+ Kg5 Qe8 Kh6 Qea4 Bc5 Q4b3 Nf5 Qc3 Nh4 Rf8 Nf7 b8Q Nh8 Rf6 Bh3 Qe8 Bc8 Qe2 Be6 Kg3 f2 Qed2+ Rf4 Re1 Nf3 Re3 f1N+ Kf2 Rfe4 Qca5 Rcd4 Rb3+ Rf4 Qac3 Rc4+ Ne3 Rfd4 Nc2+
2N2N2/1pBP1KRp/6n1/3QrpBb/1p1Q2n1/2RBp3/Q5Nq/2R1qkn1 b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 a5 b4 axb4 c4 e4 h4 gxh4 c5 Ra4 d6 Be7 d7+ Kf8 d5 Bd6 cxd6 Ra3 Rh3 Rg3 Rh2 Rg5 Rh1 Re5 fxe5 Qf6 Bf4 Qg5 Bc1 Qd8 Kf2 Kg7 Ke3 Kh6 Kf4 f5 a4 c5 g4 h3 a5 c4 a6 c3 a7 h2 a8Q c2 g5+ Kg6 e6 Qf8 Ke5 Qf7 d8B Qd7 e7 Qa4 e8N Qb3 d7 Qe3 Ke6 Na6 d6 Qc5 Ng7 Qc3 Nd2 Qc7 Ra3 Ne7 Rc3 Re8 Nh3 Nb8 Nc4 Nbc6 Qd4 Ne5 Bd3 Ng4 Qa2 Qb8 Bf4 c1N Nb6 e3 Bc7 Ne2 Ra1 h1Q Rac1 Qe1 Qdd5 Ng1 Qd4 Rf8 Qdd5 Nc6 Qd4 Nce5 Ke7 Nef3 d8Q Nh4 Ne6 Kh5 g6 Bd7 g7 Re8+ Kf7 Ng6 Nf8 Re5 g8R Bb5 Qd7 Kh4 Bg5+ Kg3 Rg7 Ba4 Qb5 Bd1 d7 Be2 Qba5 Kg2 Nc8 Kf1 Q2d5 Qa8 Qa1 Qa2 Nf4 Qd2 Bb1 Bf3 Qaa2 Qh2 Bc2 Nf2 Be4 Bh5 Ng2 Ng4 Bd3+
1k1R2Nq/2b3R1/1B1n1r2/K1NrB1b1/n7/rb1qQQ2/B1R1nQnP/1N1n4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 a5 Kc3 f5 b4 c5 e4 Kc7 e5 g5 e6 c4 e7 f3 e8Q f2 Qb3 f4 Qa2 f3 Na3 a4 Qb3 g3 Ra2 g4 Nh3 g2 Qe1 g1R Bf4+ Bd6 Qeb1 g3 Q1b2 g2 Nb1 a3 Ng5 Na6 b6+ Kb8 b5 Rh5 b7 Ne7 Be5 Be6 Nf7 Nc8 Nh6 Bc7 d6 Nc5 Kb4 c3 d7 c2 d5 c1B d6 Na4 Ng8 Bg5 Qe3 Bb3 Bc4 f1N Qbf2 Rh6 Bd5 Rf6 Rc2 a2 Bf7 a1Q Bc4 Qe7 d8R Qh7 d7 Qh8 Bf7 Qd4+ Bc4 Qd3 Bf7 Nd2 Be6 Rd1 Rg1 Ne4 Bf7 Raa6 Bc4 Rab6 Ka5 Nec3 Bd5 Rd2 Be6 Nd1 Bc4 Ka7 b8N Nd6 Na6 Kb7 Nc5+ Ka7 Qg3 f2 Qgf3 f1N Qff2 Rb8+ b6+ Ka8 Ka6 Rc8 b7+ Kb8 Qef3 Nb6 Ka5 Nfe3 Rf1 g1N Bf7 Ne2 Rg1 Ba4 Ba2 Bb3 Rg4 Ng2 Rg3 Be3 Rg7 Bg5 Q2e3 Qf5 Qff2 Rd5 Qef3 Qd3 Q2e3 Ka7 b8B+ Ka8 Ba7 Na4+ Bb6 Kb8 Re8 Nec3 d8Q Ne2 Qd7 Rd8 Qf7 Rc8 Re7 Re8 Rd7 Ree6 Qff2 Rf3 Qf5 Rf6 Rd8+ Nc8 Qh7 Bc4 Qee4 Qa3 Rdd7 Nd6 Qh3 Qe3 Qef5 Qd4 Qfg4 Ra3 Qhe3 Bb3 Qgf3 Qd3 Rd8+
1KB1QN1Q/1B4qR/2RQ3r/nb3P2/4b3/2BNqqb1/rR3nbk/1b1N2n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 a5 b4 e5+ Ke4 d5+ Kf3 h5 g4 e4+ Kf4 a4 c4 e3 b6 e2 c5 e1N b7 h3 f3 h2 b5 a3 c6 a2 c7 h4 b6 d3 Na3 d2 Qe2 d1B Bg2 h3 Bb2+ d4 Qe3 Bc2 Nb5 Rh6 Bc3 Bb1 Ne2 Bd7 c8B Qe8 Nc1 Nc6 b8R Na5 b7 Qe6 Nd3 Bd6+ Ne5 d3 g5+ Ke7 g6 Kf6 g7 d2 Qd3 d1Q Ke4 Kg5 f4+ Kh4 f6 Qeb3 f5 Nf3 f7 Ng1 f8N Nf6+ Kf4 Bc7 g8Q Ne4 Qd6 Nf2 Nd3 Qf3+ Ke5 Bc6 Qh8 Kg3 Bd2 Ra7 Nc3 Bb5 Nd1 Qe3+ Be4 Qf3 Bc3 Qa3 Nc5 Qc1 Nd3 Qce3 Kd5+ Kg2 Qe6 Bg3 Qe8 Bc2 Rc1 Bb1 Rc2 a1Q Rc1 Nb3 Rc2 Ra2 Rb2 Na5 Ra8 Bd7 b8Q Ba4 Ra6 Bb5 Rc2 Qb2 Qd6 Qa1 Rc6 Qb2 Bd2 Qg7 Bc3 Ne2 Rf1 h1B Rb2 h2 Rg1+ Kh3 Rf1 Bg2 Rh1 Qef4 Kc5 Ng1 Kb6 Qd2 Qc7 Qde2 Ka7 Qee3+ Kb8 Ne2 Rg1 h1B Qd6 Kh2 Re1 Ng1 Bd5 Qef4 Re7 Q3e3 Ra7 Be4 Rd7 Qff3 Re7 Bg2 Rf7 Qg8 Rh7 Qf7 Bde6 Qf6 Bb7 Qg7 Bec8
Rnn2b2/Qb3b1Q/B7/r1BBKb2/q7/2rrb1P1/2b2bN1/R1NN1kRQ b - - 0 1 illegal: No possible last move
2bKRbQ1/P3rb2/1B3Bqr/qN6/1qN2rnk/2Q4N/2Qn2Br/n1R4R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 a4 b5 g4 h5 a5 c4 a6 b3 d6 h3 d4+ Kh4 f4 b4 g5 b2 f6 c3 f5 b3 d7 c2 Ke6 h2 g6 Rh6 d5 Qa5 d6 Nc6 g7 Ne5 a7 Nf3 Ra3 Nd2 Nc3 b1Q Nb5 b2 Ra1 Rb8 Kf7 e5 Ke8 e4 d8Q e3 d7 e2 Qc7 e1R+ Kd8 Re7 f7 Nf6 g8Q Ng4 Bg2 Rbb6 Nh3 Rbf6 Rg1 h1B Rf1 Rc6 f6 Rc4 Qf3 Rf4 Qc3 Nf3 Bd2 c1N Be3 Nb3 Rc1 Qg6 Bb6 b1Q Qc2 Qb2 Q7c3 Nfd2 Rab1 Qba3 Ra1 Q3b4 Rab1 Bg7 f8R Na1 Re8 Bf8 f7 Qbe4 Bf3 Qeb4 Bd5 Bg2 Bc6 Bf1 Bg2 Bc4 Rh1 Bg7 f8N Bf7 Ne6 Bf8 Ned4 Qaa4 Nc6 Qaa5 Rbf1 Nab3 Rc1 Na1 Nf2+ Kg5 Rh3 h4 Ne5 Kh5 Rh2 h3 Nc4 Kg5 Rhh1 h2 Rhd1 h1R Nh3+ Kh4 Rg1 Rh2 Rh1 Re5 Kc7 Re1 d8B+ Kh5 Bf6 Re5 Bh8 Re7+ Kd8 Kh4 Bf6+
qQBQ2k1/1b2r1N1/2Q2B2/1K1R2q1/B3nqn1/N2nrR2/q1q2P1q/1Rb3N1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 h5 d4 a5 g4 c5 g5 e5 b6 h3 b7 e3 Kd3 h4 Kc4 h2 d6 a4 d7 a3 b5 a2 b6 h3 d5 e2 d6 e1Q Ba3 e4 Qd4 e3 Ne2 Qc3+ Kb5 c4 Bc1 Nh6 g6+ Kg8 g7 Ra3 Nf4 e2 Ne6 e1N Qe4 Nd3 Bb2 Ng4 Qc6 Qc2 Bf6 Na6 b8Q c3 b7 Nac5 Bg2 Qe7 d8R Ne4 d7 Rh7 Bf3 Qd6 Bd1 Qf4 Rg1 h1Q Rg3 h2 Rf3 Qg1 Ng5 h1Q Nh3 Qgh2 Ng1 Q1g2 Qa8 Qgh1 b8Q Bb7 Qa5 Qcc1 Ba4 c2 Qaa8 Qcd2 Qa5 c1Q Qac7 Rc3 Na3 Qdc2 Rb1 a1Q Qcc8 Qaa2 Qc8c7 Kf7 Qcc8 Bc5 Qc8c7 Be3 g8B+ Kg6 Be6 Re7 Bf5+ Kf7 Qa6 Qg5 Qcd6 Nb4 Rc8 Ba8 d8N+ Kg8 Rh3 Ng3 Rc5 Qhd5 Qac8 Ne4 Rf3 Qb7+ Qb6 Qa7 Q6d6 Bb7 Qcc6 Qa8 Bc8 Q1d2 Qdc7 Qdd6 Qa5 Bc1 Rd5 Re3 Ne6 Qdf4 Ng7 Nd3 Qd8+
1N4R1/b1KBnR2/1Q2b1Rk/2b2qr1/B2NQ1n1/2BqQb1N/1Pb1r3/br6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 Kf7 g4 Kg6 e4 a5 d4 a4 g5 h3 d6 c4 d5 h4 b6 c3 b7 h2 d7 h3 d6 c2 Qg4 a3 Qg3 f3 Be2 f4 Bd1 f2 Nd2 f1B Ndf3 a2 Nd4 f3 Bd2 c1B Bc3 f2 Qe3 Nf6 Ba4 Ng4+ Kd5 Kh5 e5 Rg8 g6 Bd3 e6 f1Q g7 Bc2 e7 Nc6 b8N Bd2 Re1 a1B e8B+ Qf7+ Kc5 Ne7 Rf1 Bc1 Qe4 Be3 Rf4 Qg6 Rf7 Kh6 Kb5 Ra7 Kc5 Rc7+ Kb5 Qf5+ Kb6 Rh8 g8R Rc5+ Ka7 Re5 Rgg7 Rg8 Ka8 Qb6 d8Q Be6 d7 Qb5 Qb6 Qd3 Kb7 Bf2 d8Q Be3 Qb4 Bf2 Qf3 Re2 Bed7 Be3 Kc7 Bf2 Ndc6 Bc5 Qbe4 Ba7 Rg5 Rg6 Nd4 Rg7 Qfe3 Rg6 Ngf3 Rg8 Rf1 h1R Ng1 h2 Nh3 Rg1 Rf4 h1B Rfg7 Rb1 Rf1 Qh7 Rff7 Qf5 Kd6 Bf3 Qb6 Nc6+ Kc7 Bc5 Be8 Ne7 Beb5 Rd8 Rg8 Rd5 Bd7 Qf6 R5g7+ Rg5 Rff8 Qg6 Rff7 Qf5 Rg6+
2BN2RB/q1N5/2n1nnbr/2N1b3/k1B1QRRn/1nPQ3r/K1n3bq/4Q3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 g4 d5 b4 Kd7 f4 a5 g5 h5 g6 d3 Kc3 h3 Kb2 a4 f6 d4 f7 a3+ Ka2 d2 c3 e4 g7 d3 f5 e3 b6 Kc6 f6 Kb5 b7 h2 Qb3 d1N Bh3 h4 Qe6 e2 Bf4 e1N Qe4 d2 Nf3 Rh6 Ne5 Nb2 Nd7 d1N Rg1 h1B Be5 Bd6 f8Q Ka4 f7 Ne3 Rg4 Nbd3 Qe7 Nf4 f8Q N3c2 Qff5 Nc6 b8N Nf6 g8B Qc7 Bc4 Qa7 b5 Neg2 b6 Ne6 b7 Bc7 Bd4 Bd6 Rf4 Be5 Bg4 h3 Nc5+ Ka5 Qe1 h2 Qd3 Nh4 Qeh7 Bg2 Qhe4 h1Q Bf5 Ncd8 Rg4 Qh2 Nc6+ Kb6 b8R+ Bb7 Ne7 Nc6 Rbg8 Ka5 Rf4 Rd8 Rgg4 Rdh8 Rg8 Nc7 Bc8 Ne6 Rgg4 Nb8 Rg8 Bc6 Rgg4 Be8 Rg8 Bg6 Nc6+ Kb6 Nd8 Ka5 Nd2 R8h7 Na6 Ka4 Nb3 Nc6 Nc7 Rh8 Qf2 R8h7 Rg1 Rh8 Qfe1 R8h7 Kb1 a2+ Kb2 a1N Ka2 Bh1 Rgg4 Bg2 Na5 Nb3 Nab7 Rh8 Bc5 Rh5 Bf8 R8h6 Bg7 Nf5 Bh8 Rh3 Kb1 Nh4 Kb2 Nh5 Ka2 Nf6 Nc5+
R2BN2Q/2qQ1rRn/q3nNq1/2b4q/3P1QB1/1nqr4/3R4/qNk1B1Kb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 d4+ Ke4 d6 c5 e3 h5 b6 a5 b7 f5 g5 f3 d7 h3 b5 c4 b6 a4 g6 h4 g7 h2 Ba3 h3 Ne2 f4 Bd6 c3 Rg1 h1Q Qb3 Kd3 e4 a3 e5 h2 e6 a2 e7 Ra7 e8N Nc6 b8B Nf6 g8Q Qg2+ Ke1 h1Q b7 f2+ Kd1 f3 Bg3 Bc5 Qb4 Rh3 Bbc7 Nh7 b8Q Bb7 Na3 Ke3 Rb1 a1N Nf4 Nb3 Rb2 Qc8 Rc2 Nd8 Be2 f1Q+ Be1 Be7 Rb2 Ne6 d8R f2 Qh8 Qe4 Rg7 Qg6 Bg4 Qa6 Qd6 f1Q Nh5 Qh2 Rc2 Bh1 Nhf6 Qcb7 Qc6 Bc5 Ba5 Qfc4 Rc1 Qbb6 Rb1 Rf7 Qd7 Rf3 Qg3 Qhh5 Ra8 Qbb7 Bd8 Qc7 Qf4+ Kd3 Bd2 c2+ Ke1 Qc3 Rd1 Re3+ Kf1 c1Q Kf2 Q1a1 Nb1 Kc2 Be1 Rd3 Rd2+ Kc1 Kg1
4q1bQ/Pq2rbr1/B4b2/4n2b/1N1k2b1/2b3RN/R1N2Rr1/Q2BBKnQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 Kd6 g4 c5 f4 h5 g5 e5 g6 b5 a5 e4 g7 c4 f6 h3 f5 h4 a6 h2 a7 c3 f7 c2 f6 b3 Qd3 b2 Qa3+ b4 Qc3 e3 Be2 h3 Qa3 Be7 f8Q Bg4 f7 Nd7 Qb3 Ne5 Bb5 e2 Bc4 Qe8 Bb5 Rh7 Qa3 Nf3+ Kf2 e1B+ Kf1 Nh6 g8B Rg7 Be3 c1R Bd2 Rc7 Ra2 Rc2 Qc3 b3 Na3 b1B Qa1 b2 Ba6 Rc7 Bh7 Bg6 Nc2 b1B Qh8 Bf6 f8R B6h5 Bhd3 Rb8 Be2 Rb2 Bd1 Rce7 Rg8 Nf7 Qh6 Kc7 d6+ Kb6 d7 N7e5 d5 Kc5 d8Q Bf7 Ba5 Bc3 d6 Kd5 d7 Bfh5 Na3 Bbg6 Nc2 Bf7 Qc8 Ke4 d8N Kd5 Nc6 Kc5 Na3 Rg2 Nb4+ Kd4 Qh8 Ke4 Qc6+ Ke3 Ne2 Ng1 Nf4 Kd4 Qa8 Ngf3 Rg1 h1Q Rf8 h2 Nac2+ Kc5 Qb8 Rg3 Qb7 Bg8 Bb6+ Kd6 Ne3 Bh4 Rf5 Bf6 Kf2 Bgf7 Rg2 Ng1 Nec2 Bg8 Be3 Bgf7 Bd2 Kc5 Kf1 Bg8 Ne3 Kd4 Be1 Bhf7 Nh3 Bgh5 Rgb2 Qd5 Rbf2 h1B Rg5 B1f3 Qa8 Qdd7 Qc6 Qb7 Rg6 B3d5 Rg5 Bde6 Qh1 Rg2 Rg3 Beg4 Nec2+
2R1Nn1n/P1RB1Rr1/3r1BBr/7Q/Q1q1N1Kb/r4N2/1n1nn3/1Qkb2b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 g4 Ke5 a4 Kd4 a5 h5 d3 b5 f6 e5 f7 c5 d6 b3 d7 h3 g5 h2 g6 b4 g7 h4 a6 h3 Bf4 c4 Bg3 b2 Be2 c3 Qb3 e4+ Kf4 e3 f3 c2 Nd2 b1N Kg4 c1N f4 Qc7 f5 Rh7 d8N Nc3 Qa4 Ne7 g8B Nd7 f6 Nd1 Bh4 Kc3 d4 Kb2 d5 b3 d6 Ng6 Bb5 e2 Ngf3 e1B Rf1 h1R Nb7 h2 Ne4 Rg7 Bh7 Ne2 Rc1 Nh8+ Bg6 Qc4 Rc3 Be7 f8Q Bf2 f7 Bg1 Qe8 Nf8+ d7 Kb1 Nd6 b2 Bf6 Bb7 Rd3 Kc1 d8R b1N Bd7 Nd2 Rc8 Bd5 Rf2 Nb2 Rb3 Bc6 Rb7 Ra7 Rbc7 Ba8 Be5 Bh4 Bf6 Bb7 Qe5 Bc6 Qh5 Bb5 Qa3 Ba4 Ne8 Bd1 Qd3 Rb7 a7 Rb6 Qd4 Rd6 Rf1 Be3 Rf2 Re1 Qb6 h1R Qbb5 Rh3 Qa4 Reh1 Rf1 Bg1 Rf2 Ne6 f8Q R1h2 Qg8 Nf8 Qgh7 Rh1 Nd4 Ra3 Nf3 Rh2 Qg8 Ra2 Be7 Nf4 Qhh7 Ne2 Ng5 Qc6 Rf4 Ra3 Qa2 Be1 Nf3 Bef2 Rf7 Qc4 Bf6 Rh5 Qh6 Bh4 Qg5 Rhh7 Qh5 Rh6 Qb1+
2rQ1Nr1/3N2q1/1n5Q/4r1rq/b1Bnb1Q1/k1Nb4/R2R1P1b/2BbK1BR b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 e5 g4 Ke7 b4 Kd6 g5 a5 g6 h5 f6 a4 b6 h3 b7 h4 f7 e4 g7 d3 b5 Kc5 b6 Kb4 c5 d5 c6 a3 c7 h2 Nc3 d2+ Ke2 h3 Na4 a2 Qe1 d4 Bg2 d3+ Kf1 e3 Bd5 Qg5 Be4 Nd7 b8Q Nh6 g8N Qg7 b7 Bd6 f8Q Nb6 Nc5 Bf5 Ne7 Rg8 Qbe8 Rc8 Qe2 d1B b8B d2 Nd7 Ba4 Qg4 d1B Qd8 e2+ Ke1 Kb3 Ba8 Bd3 Ng6 Nf5 Bf3 Nd4 Bd5+ Kb4 Qff4 Be5 Qh6 Bf4 Ngf8 Bg3 Bg5 Ka3 Rb1 a1R Rb2 Rb1 Rd2 Rb5 Bc4 Rc5 Be3 Rg5 Rb2 Be5 Bc1 Bd6 Nf3 Be5 Nd2 Bd6 Ne4 Be5 Rg1 h1B Nc3 Bhe4 Rh1 h2 Ba7 Rb8 c8R Bd6 Rc6 Rc8 Bb8 Bg3 Rd6 Be5 Rf1 h1Q Rd5 Qh5 Rh1 Bf6 Bh2 Be5 Bg1 Bh2 Kd2 e1R Rd6 Bg2 Rd5 Ree5 Rd6 Bge4 Ke1 Nc6 Rd5 Bb1 Rd3 Nd4 Rdd2 Bbd3 Ra2+
R2R2K1/r2bq1bN/Q1nQ1Nk1/2bB1qB1/B3Q2r/4n1Pb/2qb2q1/1N4R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 f5+ Ke5 Kf7 e4 h5 b4 f3 d4 a4 b6 f2 b7 c4 b5 h3 g3 h2 b6 c3 d6 h4 d5 c2 d7 h3 d6 a3 Qf3 a2 Bg2 f1Q Bg5 Kg6 Ke6 c1B e5 Nf6 Qe4 Nc6 b8Q Ra7 b7 Rh4 Qa8 Bd2 b8N Nd5 Nf3 Ne3 Rg1 h1Q Qb7 Qh2 Qa6 Qc7 Bh1 Qhe2 Bg2 h2 Bh1 Bb7 d8R Bc8+ d7 Bc5 Bg2 Qed1 Bh1 Qc2 Bg2 Kh7 Kf7 h1Q e6 Qh2 Bh1 Qhg2 e7 Qfd3 Kf8 Kg6 Kg8 Qb7 Nh2 Qdb5 Ng4 Qa5 Nf6 Qab5 Qb4 f4 Nh7 f3 Qba4 f2 e8B+ Kf5 Qc4 f1B Qe2 Qh3 Bd5 Qg2 Bb3 Qbd3 Ba4 Qdb5 Bf7 Qbd3 Bfb3 Kg6 Bd5 Qf5 Qed3 Qc7 Qe4 Qe5 Rf8 Qf6 d8Q Qe7 Nd7 Bb5 Ndf6 Bf1 Na3 Bd7 Rd1 a1B Nb1 Be5 Qc7 Bec3 Ra8 Ba1 Nh5 Bg7 N5f6 Qf2 Qd6 Bh3 Rdf1 Qg2 Rf3 Nc4 Rb3 Ne3 Rbb8 Qb3 Rc8 Qc2 Rd8
NqBNKR2/Q3B3/q3N1rB/3n2bR/QQ1q4/bP6/k1q4b/rR2bb1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kd6 d4 g5 h4 c5 h5 a5 b6 f5 b7 f3 Kg3 a4 b3 f4+ Kf2 a3 h6 c4 h7 c3 Be3 g3+ Ke1 f2+ Ke2 g4 Kd3 f3 Kc4 g2 Kb5 g3 Bd2 c2 Ba5 c1B Qe1 a2 Na3 Bg5 Rh5 Bh3 Rb1 a1Q Ne2 g1B Nf4 g2 Bd2 Na6 Ne6 Bh2 b8Q+ Nc7+ Kb6 g1B Qa7 Bg2 Ba6 f1Q Bc8 f2 Bc1 Qc4 Qb4+ Qc5+ Kb7 f1Q e5+ Ke7 Nb5 Nh6 Bf4 Rg8 h8R Rg6 Bd2 Qf4 Bc1 Bf1 d6+ Kf7 d7 Nf5 d5 Qfd4 d6 Nd5 Nbc7 Bf2 Bd2 Qc2 Bf4 Qe8 d8B Ng3 d7 Nh1 Be7 Be1 Be3 Qcd1 Kc6 Qa6+ Qab6 Ra7 Na8 Qc2+ Kd6 Qae2 Bf4 Ra1 Qa7 Qd8 Bc1 Qb5 Bd2 Qda5 d8N+ Ke8 Bc1 Qaa6+ Nc6 Kf7 Kd7 Qb8 Rg8 Bf6 Bh6 Bg5 Bd8 Bc5 Be7 Bd6 Qb5 Ba3 Qb4 Rg7 Rf8+ Kg6 Re8 Kf5 Ncd8 Ke4 Rf8 Kd3 Ke8 Rg6 Nec7 Qcb2 e6 Kc2 Bc5 Qe3 e7 Qed4 Nce6 Qbc3 Kf7 Qcd3 e8Q Q3c4 Be7 Qcc6 Rd1 Kb2 Rb1+ Ka2 Qed7 Qcc5 Ke8 Qc2 Qda4
1rn1n1N1/2Nr1B2/3n2qQ/1R1r4/Q1bBRP1n/NRK2QBr/r5kq/6b1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 Kd2 Kg5 b4 Kf4 d6 a5 g5 c5 f3 Kg3 g6 h5 d7 e5 b6 a4 d5 c4 g7 a3 b5 h3 f4 a2 b7 h4 d6 c3+ Kc2 h2 b6 e3 Nh3 e4 Bd3 e2 Ba6 e1N+ Kb3 c2 Bb2 c1R Nf2 h3 Bc3 e3 Rg1+ Ng2 Nd3 h1Q Re1 e2 Ne5 h2 Ng4 Nh4 Nf6 Kg2 Kc4 Ne7 g8N Qe8 d8Q Qg6 Nd5 Be6 d7 Nc8 Qe8 Bc5 d8B Nd7 b8Q Nf6 b7 Bg1 Qea4 Ne8 Qd6 Rb8 Na3 Rh7 Bb5 Rd7 Rb1 a1R Rb3 Nf5 Bh4 Ra2 Bg3 Rca1 Qd3 Rd1 Bd4 Rdd2 Qb6 Nfd6+ Kc3 Rd1 Nc7 Bc4 Qc5 Rdd2 Qh5 Rd1 Qh6 Rdd2 Rd1 e1N Qe4+ Nf3 Re1 Rd1 Qd3 Nh4 Re4 Ra8 b8R Rdd2 Rb7 Rb8 Qe3 Rd1 Bg7 Rd5 Bd4 Kf1 Bc6 Qg2 R3b5 h1R Qf3+ Qf2 Rb3 Rh2 R7b5 Rh3 Qe3 Qh2 Ba8 Rg5 Bd5 Kg2 Bf7 Rd5 Qf3+
3nN1R1/1P1q4/2rrQ3/2qb1n2/kb2R1r1/B1N2B1N/2BKnQn1/Rr1Qr3 b - - 0 1 illegal: No possible last move
3Q1RQ1/R1N5/nQ1n2b1/2b1KP2/1B1rb2n/3R3b/qNNbbk2/1r1Bn2B b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 a5 b4 e5+ Ke4 d5+ Kf3 h5 g4 e4+ Kf4 a4 c4 e3 b6 e2 c5 e1N b7 h3 f3 h2 b5 a3 c6 a2 c7 h4 b6 d3 Na3 d2 Qe2 d1B Bg2 h3 Bb2+ d4 Qe3 Ne7 Qb3 Bc2 Bc3 Rh4 Bb4 d3 Ne2 d2 Nc4 d1B Nd4 Na6 b8Q Qd5 b7 Be2 Nb2 Bd7 Qc8 Rb8 Qd8 Qe6 Rf1 h1N c8B Ng3 Bh1 h2 Rg1 Ne4 Rg3 Bcd3 Nc2 Nd6 Rh3 Be4 Qe3 Be8 Qeb6 Bg6 Bd7 Qg8 Ba4 Qb3 Na3 Qc4 Bd1 Qd5 Nc2 Qe6 Kg3 Ke5 g5 Qd5 f6 Nef5+ Kf2 Kf4 f7 Bh6 f8R Qf7 Rg3 Rg4 Rh3 Nh4 Rg3 Bg7 Rh3 Bc3 Rg3 Bd2 Rh3 Rc8 b8N Rg1 Rg3 Rc4 Rh3 Rd4 Rg3 Bgf5 g6 Bh3 g7 Bh7 g8Q Bg6 Rb1 a1B Rc1 Ke5 f4+ Kf5 Rb3 Kg4 Rd3 Qa2 f5 Kf4 Na4 Bb2 Ra1 Ba3 Nb2 Kg4 Bc3 Bc5 Bb4 Bc3 Ke3 Kg3 Nd7 Rf1 Nf6 Rg1 Nd5 Rf1 Bf3 h1B Nc7 B1g2 Ba8 Be4 Bc6 Kg2 Ba8 Rg1 Kf4 Bd2+ Ke5 Kf2 Bc6 Qb1 Ra4 Qa2 Bd5 Nb8 Ra7 Na6 Bc6 Bd5 Ne3 Neg2 Bb3 Rb1 Bd1 Ne1 Nc2 Bh1 Bd7 Ba8 Bc6 Bb7 Bg2 Be4 Bh1
1Q2R3/B1k4K/1NB2Q2/2n4b/2PRpN2/2Qqnq1r/1bbrrq2/N2Rn2B b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 a5 Kg5 h5 Kg6 e5 g4 e4 b4 a4 c4 d3 f4 h3 f6 h2 g5 d2 f7 d4 f5 a3 f6 d3 b6 h4 b5 a2 b7 h3 b6 Qe7 Bg2 Na6 b8Q Qc5 b7 Qf2 Na3 Nc5 Qf3 d1Q Ne2 d2 Nc2 Bg7 f8R Nh6 f7 Ng4 Nf4 Bb2 Qc3 Ne3 Re8 Qde2 f8Q d1B Qff6 Qd3 Rf1 h1R Rg1 Rg8+ Kh7 h2 g6 Rf8 Rb1 a1N g7 Ra2 g8B Bh5 Bf7 Rg8 Bf3 Rg2 Be6+ Kc6 Rd1 Bd7 Bd2 Kb6 Be1 Ba4 Bd5+ Ne6 Bc6 Nc5 Rd2 Bb3 Rbd1 Ba4 Qa8 Kc7 b8N Bb3 Nd7 Ba4 Na3 Nac2 Nb6 Bb3 Re2 Ba4 Bd2 Ne1 Nc2 Bb3 Na1 Bc2 Bc1 Rf1 Red2 h1Q Kh8 Qh3 Kh7 Rh2 Bh1 Qhf3 Re5 Rh3 Re8 Qde2 Rd6 Qd3 Rd4 Rg1 Bd2 Rg2 Bc1 Qff1 Bd2 Re2 Bc1 Q1f2 Bd2 Ng4 Be3 Na6 Bd7 Ba4 Bc6 Ba3 Rd6 Rad2 Nc8 Bb2 Ba7 Ne3 Rd4 Nc5 Nb6 Bc2 Qb8#
K1b3QN/N1p2r2/5r1q/2R3Q1/2BR1r2/1B1q1NRQ/nbn3Pb/3nBqk1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b4 h5 b6 a5 b7 f3 b5 a4 b6 f2 d6 h3 d7 h4 d5 a3 d6 a2 Qd2 h2 Qg5 h3 Nc3 Ra6 Nb5 Nc6 b8Q Nh6 b7 Nb4 Qa7 f6 Qae3 Rh7 Bd2 Nf5 Be1 Nd4 Na7 f5+ Ke5 f4 b8Q f3 Qa3 Bb7 e4+ Kc5 Rd1 a1B Rc1+ Bc3 Qb3 Na2 Qbg8 Be7 Qc8 Rf7 Be2 f1N Bd1 f2 Bb3 Ne3 Rc2 f1Q Nf3 Nd1 Rc1 Qe8 d8N Rh7 d7 Rf6 Rc2 Qg6 Nf7 Ba6 Nh8 Rhf7 d8R Qd3 Qd7 Qh6 Qdg4 Bc8 Qg3 Kb4 Kd5 Bd6 Q3g4 Bg3 e5 Bf4 Bf2 Bb2 Rc5 Bg3 Qe6 Nc2+ Kc6 Bf4 Bc4 Kc3 Rd4 Bg3 Nd2 Bf4 Be1 Bg3 Rf1 h1R Rf3 h2 Re3 Rhf1 Rf3 Bd7+ Kb7 h1Q Qh3 Bc8+ Ka8 Bh2 Rg3 R1f4 Nf3+ Qd2 Re4 Qf1 Bb3+ Kd3 e6 Qc3 Rd4+ Ke2 e7 Qd3 e8B Ke3 Bb5 Ke2 Bc3 Ke3 B5c4 Kf2 Ne5 Kg1 Ba5 Ba6 Be1 Bc8 Nf3+
1Q1r4/3q1Qq1/n2bbB2/1q5N/kr4qq/1BRN2R1/b2p1PQB/K4RnN b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 c4 a5 Kc2 d5 g4 Kd7 b4 e5 Kb2 e4 g5 d3 c5 e3 g6 a4 f6 e2 f7 e1Q g7 h3 b6 Kc6 b7 Kb5 c6 h4 c7 d4 Qb3 a3+ Ka2 h2 Bg2 d2 Nf3 d1Q Nbd2 h3 Bb2 d3 Ne5 Ra4 Ne4 d2 Nd3 Bd6 f8N Be6 c8R Nf6 g8Q Qg4 Rf1 h1Q Ng3 h2 Nh7 Qe5 Bd5 Nfd7 Rc3 Na6 b8B Qe7 Qf7 Rd8 Nf6 Qhe4 Qc2 h1B Bb3 Qeg5 Qc1 Ne5 Nfh5 Qd7 Qb1 Bg2 Nh1 Nf3 Qd1 Ng1 Qdf3 Bh3 Qg2 Qec6 Rab1 Q5h4 Ka1 a2 Rbe1 Qc5 Re3 Qe5 Rg3 Qee2 Qh2 Bg2 Qh3 Bgd5 Qg2 Qe5 Rc2 Qee2 Bf6 Bc4 Rc3 Qe5 Kb2 a1Q+ Kc2 Qad1+ Kb2 Qg6 Rg5 Bc5 Bc2 Qed5 Bh2 Ba2 Bb3 Qg7 Rg3 Qdg4 Ka1 Qdg5 Kb2 Bd6 Ka1 Kb6 b5 Ka5 b6 Rb4 b7 Qgb5 Bd5 Ka4 b8Q Rb3 Bc4 Rb4 Bb3+
n4n1n/2k1BNrb/R1BB1p1N/4b1n1/R2r2NK/4n2Q/PQ1Q3R/q1qb4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 d4 b5 h4 c5 e4 g5 h6 g4 e5 f6 h7 f3 Kg3 b3 h5 b4 h6 c4 d6 b2 d5 b3 Qd4 f2 Bf4 c3 Rh2 c2 Ne2 Ra7 Nbc3 b1N Nd1 b2 Bg2 Nc3 Rc1 b1B Ne3 Na4 Qb2 Ne7 Nd4 Ng6 Ndf5 Nb6 Bf3 Rg8 h8Q Rg7 h7 Na8 Bh1 Qe8 e6+ Kd8 d7 Bd6 e7+ Kc7 d8N Ra4 Nf7 Nd7 Re1 Qd8 e8R Ndf8 Re4 Ba6 Rd1 Be2 Rd3 Bf3 Ra3 Rb4 Ra6 f1N+ Kf2 Be2 Kg2 g3 Kh3 g2 Ng4 Qe7 Rd4 Qe4 Be5 c1Q Bg3 Rb6 Rda4 Rb4 Be5 Rd4 Bg3 Bf4 d6+ Kc8 d7+ Kc7 Nd8 Bd6 Nf7 Bd1 Be5 Ne3 Qd2 Kb8 d8B g1N+ Kg3 Nf3 Kh3 Ne6 Be7+ Kc7 Kg3 Nfg5 Qb8+ Kd7 h8Q Nef8 Qh5 Nh8 Qbb2 Kc7 Qh3 Qd3 Kh4 Qa3 Qbb4 Qac3 N5h6 Qa1 Bc6 Bh7 Qbb2 Rb4 Bc3 Rd4 Bb4 Be5 Bbd6+
2KQRBqR/N2Q1q1n/1BnP1r1N/8/k2nb3/2Np1q2/n3r2Q/3Bb1nR b - - 0 1 illegal: No possible last move
bQ1r2q1/2Kn2bn/kB1rB3/1Q4Q1/2NN2Np/r2n3n/2P2B1b/q1R1R2R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kd3 d5 g4 Kd7 b4 Kc7 f4 Kb6 f6 a5 f5 e5 f7 h3 f6 h4 g5 a4 g6 a3 g7 a2 Nf3 h2 Nbd2 Ra5 Bh3 Bb7 Qg1 Ba8 Qg5 Nd7 Be6 Bd6 f8R Ra6 f7 Ngf6 g8N Nh7 Rb1 a1B Nh6 Qc8 Re1 h1N Ng4 Qd8 Bb2 Ra3+ Bc3 Kb7 b6 Ka6 b7 Bb2 b8Q e4+ Ke2 e3 Kd3 e2 Nc4 Ba1 Rbc1 Bh2 Re8 Rg8 f8B Rh8 Bc5 Nf2+ Kd2 d3 Ke3 d2 Kd4 d1N Bb6 Nd3 Rh1 e1Q Qbe5 N1f2 b5+ Kb7 Re7 Qg8 Re8 Nh3 Qef5 Nb2 Qe5 Qf1 Be1 Qg1+ Bf2 Nd3+ Ke3 d4+ Ke4 Qd1 Kd5 Bc3 Kd6 Qe1 Ba5 Ka7 b6+ Ka6 b7 Ba1 b8Q Bc3 Ra1 Qf1 Ra2 Qa1 Kc7 Qg1 Nh6 N3c5 Qgd8 d3 Qg5 d2 Ra1 d1R Bg4 Qg7 Bb6 Rd6 Bf5 Qd1 Ng4 Nd3 Qd5 Rg8 Ree1 Rd8 Be6 Qg8 Qc6 Bce5 Nd4 Bg7 Qcd5 Qc1 Qc5 Qb2 Rac1 Qa1 Qb5#
8/n3n1rb/1q1B2kr/b1q2QBR/B1R1p3/PQ3b2/NrQ1R3/3KNNnb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 g4 e5 f4 h5 f6 c5 f5 b5 g5 h3 d6 h2 d5 c4 d7 b3 a3 b2 d6 h4 Nd2 b1R Ngf3 e4 Qa4 b4 Kd1 b3 Ra2 h3 Ne1 c3 Bb5 b2 Nf1 Rh6 Qc2 Qe7 d8R Ra7 d7 Qc5 Ba4 Nc6 Re8 Nge7 d8N+ Kg8 f7+ Kg7 f6+ Kg6 Nd2 Rb7 Nf1 Na7 Nc6 Bf5 Nb4 Bg7 f8Q Bh8 Rg1 h1B f7 h2 Rc8 Bg2 Rc7 h1B Qc8 Be5 f8B Bg3 Qd7 Bd6 Rc8 Bc7 Qd5 Ba5 Qe6+ Kh5 g6 Rc7 g7 Bh7 g8Q Bf3+ Qe2 Rb7 Qd7 Rc7 Qb3 Rb7 Rg4 Rc7 Rh4+ Kg6 Rh5 c2+ Kd2 Nd5 Qh3 Rg7 Bd6 Ne7 Rc6 Ra1 Rc7 b1Q Qd7 Qb2 Qh2 Rb1 Rc8 Qb6 Rc4 Qe5 Qf2 Rb2 Qc5 Bfg2 Ke2 Qc3 Bg5 c1N+ Kd1 Ne2 Qg4 Ng1 Qgc8 Rf2 Re2 Bf3 Na2 Qe5 Qcb5 Qec5 Qc2 Rh2 Qbb3 Bg4 Qcd3 Nf3 Re3 Rb2 Qdc2 Ng1+ Re2 Bgf3 Qf5+
b6R/R4r1Q/Q2N4/5NqB/3PrqbB/4NRn1/kpnb1K1b/nr1B1Q2 b - - 0 1 illegal: No possible last move, all moves rejected
N5N1/nB2BB2/1R1bQ3/2qRrr1n/K2Pb1kp/QQ2q1r1/3N1n2/r1b2R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 g4 c5 e4 f3 d6 Ke6 d7 f2 g5 f4 b6 c4+ Ka4 c3 b4 c2 e5 Kf5 b7 h3 b5 h4 b6 h2 e6 f3 e7 Rh6 e8B Re6 g6 Qc7 d8R Re5 g7 Nc6 b8Q Na7 b7 Kg4 Na3 Qc5 Nb5 Bd6 Qe2 Bf5 Rb1 Be4 Ba3 c1B Bf7 Nf6 g8N Nh5 Bg2 f1Q Nc7 Qf2 Rb6 Qe3 Qa2 f2 Nf3 f1R Nd2 Rf6 Qc8+ Rff5 Rf1 h1N Qce6 Nf2 Qb2 Rc8 Na8 Rc7 b8Q Rb7 Ra6 Rb3 Bh1 Rd3 Q8b3 Rc3 Bb4 Rd3 Rb6 Rc3 Ka3 a4 Qc8 Bf8 Nf3 Qb5 Re1 Qee2 Bg6 Bb1 Nd2 Rg3 Rf1 Qe3 Bb7 Be4 Qe6 Qc6 Bd6 Qc7 Kb4 a3 Ka4 a2 Bf7 a1R+ Q2a3 Qe7 Bb4 Qc7 Rd5 Qc8 Be7 Qc5 Bf6 Bd6 Be7
8/2K2Q2/Rp1B1nPb/b4krq/2Nr2R1/3RQn1b/2Q1BB1N/2rb1nNq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 c5 Kc4 h5 Kb5 e5 g4 c4 d4 c3 f4 h3 a4 h2 a5 c2 a6 e4 f6 b3 d6 Ke6 f7 b2 f5+ Kf6 g5+ Kg7 f6+ Kg6 d5 h4 d7 h3 d6 e3 a7 e2 Nd2 b1B Ra6 e1B Be2 Ba2 Ndf3 Bb3 Be3 c1R Bf2 Qe8 Kb6 Kf5 d8Q Rh4 d7 Bh6 f8Q Qh5 g6 Nc6 f7 Nd4 Qde8 Nf6 d8R Bc2 Qd2 Bd1 Qee3 Rg4 Qdc3 Rg5 Kc7 Be6 Rd7 Rd8 a8N Bd2 Nb6 Be1 Na4 b6 Nb2 Bd2 Qc6 Ba5 Rd6 Bd7 Nc4 Bc8 Qfe8 Bd7 f8B Be6 Nfe5 Nf3 Rd3 Rd4 Ng4 Bd7 Bd6 Be6 Bf1 Bc8 Qf7 Be6 Ne2 Bc8 Rg1 h1N Rg2 h2 Ng1 Ng3 Be2 h1Q Nh2 Nf1 Rg4 Rc2 Qce8 Rc1 Rg2 Be6 Qd2 Ke4 Qa4 Bg4 Qe3+ Kf5 Qc2 Bh3 Rg4
1R3bQR/2rp3Q/Q1bn4/1q1RBbkr/1NPbB1nN/n2n4/4b1K1/B5N1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 Kf7 f4 Kf6 Kf2 a5 c4 h5 g4 e5 b6 h3 b5 h4 b7 d3 b6 h2 Nh3 a4 Qb3 d2 Qe3 d1B Qc3 a3 Qc2 a2 Bg2 e4 Ng1 h3 Na3 Nc6 b8R Bb7 Bb2+ Nd4 Qd3 Qe7 Nc2 Bc6 b7 Nh6 Nb4 Be2 Rd1 Nf7 Ba1 e3+ Kg3 Qc5 Be4 Nd6 g5+ Kf7 f6 N4b5 f5 Rh5 Qb1 Na3 Rd5 Qb5 Qd3 Ra7 g6+ Kg8 g7 Kh7 g8Q+ Kh6 Qh7+ Kg5 f7 Qc5 Ra8 Qb5 b8B Rc7 Qd1 Qc5 Qa4 Qb5 Bc3 a1B Qa6 Bb2 Be5 Bd4 f6 Bg4 Ba7 e2 Rb8 e1N Bc5 Bf5 Bb6 Be3 Bbd4 Nd3 Bb2 Bd4 Ba1 Bg7 f8N Bh6 Ne2 Bg7 Ng6 Bf8 Rg1 h1B f7 h2 Nh4 Bf3 Rh1 B3g4 Ng1 Be2 Kg2 Bg7 f8Q Bh6 Qfh8 Bf8 Nh3+ Kg4 Rc1 h1N Ng1 Kg5 Rb1 Nhf2 Q8g8+ Bg7 Rf1 Ng4 Rf4 Be6 Rff8 Bf5 Qe6 Bh6 Rh8 Bf8 Qeg8+
n2qB1qn/1R3bNb/7N/4KR1b/2pQ2b1/rBP4Q/1Bnb3Q/2Rk1Nb1 b - - 0 1 illegal: No possible last move, all moves rejected
QR3qn1/n1b1R3/B6B/qqq1Nk2/1n1q1r1Q/1Q3p1b/3N1P1R/B2KNn2 b - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 b5 axb5 g5 Ke2 gxh4 Ke1 Ra6 Qd3 Rd6 Qd2 cxd4 Qd1 d3 Bf4 d4 Bc1 Rd5 exd5 Bb7 Rh2 Ba6 Rh1 Bc8 b4 Kd7 c4 f5 g4 e5 b6 h5 b7 h3 d6 Ke6 d7 e4 g5 d2+ Ke2 h2 c5 e3 c6 f4 c7 f3+ Kd3 h4 Kc2 h3 b5 d3+ Kb2 e2 g6 e1Q g7 a4 b6 a3+ Kc3 a2 Qe2+ Kf5 Qe7 d1Q+ Nd2 Nc6 b8B Qde2 b7 Na7 Qh4 Bd6 Kb2 Qde8 d8N Qf8 Nc6 Qe5+ Kb3 Qc5 Ne2 Bd7 c8Q Bc7 Rb1 a1N+ Kb2 Rh7 Ne5 Nc2 Nf4 Nb4 Ng2 Rh6 Ra1 Rf6 Ra4 Qe2 Ne1 Qa5 Kb3 Qe3 Bb2 Qec5 Ba1 Rf7 Kb2 Qcb5 Kc1 Be6 Ne4 d2+ Kd1 Qbc5 Ba6 Qab5 Rg1 h1Q Rg2 h2 Ra3 Qhf1 Re3 h1N Rh2 Ng3 Qcd8 Rf6 Qd3 Qa5 Qb3 Qfb5 Re2 Nh6 g8Q Nf1 Qh8 Ng8 Re3 Bd8 Bd6 Bc7 b8R Rg6 Be7 Rg4 Bg5 Rf4 Bh6 Bf7 Nf6 Bh5 Ne4 Bg4 Rd3 Bh3 Rd7 Bb6 Rh7 Bc7 Re7 Qg7 Rb7 Nf6 Qa8 Ng8 Rb8 Qf6 Nc3 Qf8 Nb1 Qd7 Na3 Qdb5 Nac4 Nd3 Kc2 Nb4+ Kb1 d1Q+ Kb2 Qdd8 Nd2 Qdd6 Kb1 Qcd4 Kc1 Q6c5+ Kd1
1QN1qkb1/1B1rr1n1/2RNBBn1/p3r3/PqR5/r3NK2/Q1q4q/2q1R2Q b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Bg5 hxg5 Qb6 Bb2 Qc7 Bc1 Qd8 Ke2 b5 d4 e5 f4 h5 c4 e3 d5 h4 a3 g2 g6 e4 f5 h3 g7 b4 f6 b3 d6 b2 c6 h2 c5 g3 c7 Nd7 c6 Nf8 Nc3 b1Q Nf3 g1R Nd2 g2 Nd5 Be6 c8B Qc2 c7 Rh7 Bb2 Ng6 Bb7 Nh6 c8N Nf5 Rc1 Bg8 d7+ Kf7 Bd4 Qe8 d8R a5 a4 Ra7 Rd6 Rh3 Ba6 Rd7 Rc6 Rg3 Bb7 Rg5 Ke1 e2 Kf2 e1R Bc4 e3+ Kf3 e2 Bb3 Rh5 Nc4 Rh7 Nde3 Rgf1+ Kg4 Rf3 Rg1 h1Q Ba2 Rfh3 Bc3 R3h4+ Kf3 Qh2 Rh1 g1Q Ba1 Rhd4 Bb3 R4d5 N4d6+ Ke6 Rc4 Rd3 f7 Rc3 Ba2 Ra3 f8Q Rh5 Bf6 Qg5 Nb5 Rh7 Qfd6+ Kf7 Qb8 Qgh4 Rg1 Qd4 Rc6+ Qdc4 Rg4 Q4b3 Rgc4 Qb4 Ra1 Re7 Qb1 Re5 Bb3 Rd1 Ba2 Rd7 Qh1 e1Q Rb1 Qed2 Re1 Qdc1 Nbd6+ Ke6 Ne7 Rd5 Rc3 Bf7 g8Q Rg7 Nec4+ Re5 Nec8 Rh7 Bh8 Rg7 Ne3+ Kf6 Nb6 Ke7 Bb3 Bc4 Qe6+ Kf8 Nbc8 Rh7 Bf6 Rhe7 Qd5 Ng7 Qd2 Q2b1 Qa2 Bg8 Be6 Qbc2 R3c4
Qq5B/rNr1N1nn/qq6/1b3r2/1BP1Rb1Q/Rpb2R1K/2k1QNBp/8 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 g4 h5 f4 b5 Kf2 d5 Kg2 e5 a4 e4 f6 Kg6 a5 h4 a6 b3 a7 b2 f7 d3 Qa4 e3 Qc2 b4 Kh3 d4 Ra5 e2 Ra4 e1B Kh2 h3 Nc3 b1Q Qe2 d2 Ba3 d1Q Ne4 d3 Bb2 d2 Bg2 Nh6 Ra3 Rh7 Bh8 Nf5 Nd6 Qb6 Nb7 Bh6 f8B Rc7 Be7 Ng7 f5+ Kf7 f6 Kg6 f7 Qa4 f8R d1R Bc5 Qaa6 Rff3 Bc3 Kg3 h2 Nh3 Rdd7 Nf2 Rd5 Re1 Bd7 Kh3 Bb5 Be7 Nd7 Bd6 Rac8 a8Q Nf6 Bc5 Rf5 Be7 b3 Bb4 Rg8 Qd8 Qe4 Qd4 Qe5 Qf4 Kf7 g6+ Ke6 g5 Nh7 Qg3 Ra8 Qh4 Ne8 g7 Ra7 g8N Ng7 g6 Bf4 Ne4 Qed6 Ne7 Ke5 Nf2+ Kd4 Ng8 Qe5 Ne7 Ne6 g7 Qed6 g8Q+ Ng7 Qa8 Qd8 Bd6 Qb8 Re3 Bd2 Re4+ Kc3 Bb4+ Kc2 Re3 Rc8 Rf3 Rc7 Qf1 Bc3 Re4 Rf8 Qe1 Rf5 Qe2+
B2B1K1R/2n1B2q/R1nNN3/qR1kbp2/b1q2QrN/1Qb2P2/1Qp5/r4n2 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 cxd5 exd4 Kd2 Ke7 Kd3 Kd6 Kc4 f5 b4 a5 g4 c5 e4 h5 g5 a4 b6 d3 b7 d2 e5+ Kd7 d6 Kc6 e6 a3 g6 h3 b5+ Kb6 Kd5 c4 d7 c3 e7 c2 Ke6 Kc5 Kf7 a2 e8N h4 b6 h2 g7 h3 Na3 Rh4 Nc7 Nf6 g8Q Ne8 Bg2 Bg7 Qf3 d1N Nab5 Bc3 Qf4 Ne3 Nf3 Nf1 Kf8 Rg4 Nh4 Nc6 b8R Ba6 Nd6 Bb5 b7 Ba4 Qb3 Qc8 Rg1 h1Q d8B h2 Bf3 Qg2 Rh1 Qe6 Be4 Qc4 f3 Qd2 Bb2 Qdd5 Ba3+ Kd4 Bb4 Qa5 Ba3 Ng3 Rhb1 h1Q Rc8 Qh3 b8Q Nf1 Qb2 Ra6 Q8b3 Ra7 Nb7 Ra8 Bae7 Ra6 Nd6 Qh1 Ng2 Qh7 Nh4 Ra7 Qg5 Ke5 Ne6 Nc7 Qh6 Nb4 Ba8 Nc6 Qf4+ Kd5 Rb8 Nh2 Rh1 Nf1 Rb6 Be5 Rb1 a1B Ra6 Bd4 Q2a2 Bac3 Qab2 Be5 Ng2 Qg6 Rh8 Qh7 Nh4 Rb7 Q3a3 Rb3 Qaa2 Ra3 Qab3 Ra1 Qb4 Ne8 Qa2 Bcd4 Rb3 Bc3 Qb2 Nc7 Q4a3 Bcd4 Rb7 Bc3 Qab3 Rg2 Rb8 Rg4 Rb5+
qn1B1Rr1/kB6/b1Nnrp2/1p1KnrR1/Q1P2N1q/5BN1/3R3b/1Q1Q1b2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 d5 Kf3 Kd7 c4 Kc7 a4 Kb6 e4 g5 h4 d3 e6 b3 a5+ Ka7 e5 d2 h6 b2 a6 b6 e7 d4 Ke4 d3 e8Q g4 e6 g3 h5 g2 e7 Bg4 h7 Nc6 h6 Be6 Ne2 g1N Bg2 Bc8 Nd4 Nf3 Rh2 Nb8 Qb5 Ne5 e8Q Bd6 Ra5 Ne7 Nc3 b1Q Bf3 Nf5 Nce2 Qa1 Kd5 Rg8 h8N Qh4 h7 f6 Ng6 Bc7 h8R Nd6 Ngf4 Rg5 Qb2 Rf5 Qea4 Qa2 Rc5 b5 Rf8 Qa3 Qb1 Qa2 Qe1 d1B Ba3 d2 Ng3 Be2 Qed1 Bf1 Bb4 Qa1 Ba5 Qa2 Qdb3 d1R Rd2 Re1 Q1d1 Ndf7 Qbb1 Bd6 Bd8 Bc7 Bg2 Nd6 Nc6+ Kb6 a7 Ned7+ Kd4 Kb7 Nh1 Bb6 Bc7 Rh5 Bf3 Re6 Qac2 Na6 Ng3 Rhe5 Rg8 Rb8 Rg5 Rf5 Qcb3 Ne5 Kd5 Qa5 Ne7 Ka8 Rc6 Bg1 Qa4 Bh2 Bb6 Kb7 Rc7+ Ka8 Nc6 Bb7 Rh7 Rg8 Bd8 Nb8 Rf7 Bc8 Rf8 Kb7 Be7 Kb6 a8B Qa7 Rd3 Ba6 Bb7 Qa8 Rd2 Qh7 Na5 Qh4 Bd8+ Ka7 Nc6+
2qB1NQ1/1Rp3K1/1b2P3/R1qB2b1/2npn1k1/4N3/qrnNRQ1Q/Br5b b - - 0 1 illegal: No proof kernel
1Nb2K2/r2Q2rP/2RB1B1r/b7/1kn2QBr/6br/nN2pR1p/1N1q1QR1 b - - 0 1 illegal: No proof kernel
K2Rr3/b1BB1NP1/Bbr4r/1p4qn/3Q1p1Q/bNb2N2/1Q3Rk1/1bn2R2 b - - 0 1 illegal: No possible last move, all moves rejected
1r4Qk/1BQR1p2/2pbr1R1/n1P1N3/Rr2n1b1/2bBrNq1/1NKQr3/7B b - - 0 1 illegal: No possible last move, all moves rejected
B2Bn2k/qN2rp2/P4Rn1/RQ2n3/2R2n1r/1NQNQ1bb/1Bp2b2/1n5K b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 g5 Kg2 c5 h4 b5 a4 b3 e4 g4 d4 b2 a5 c4 e5 g3 d6 b4 e6 c3 d5 c2 e7 b3 a6 Bf5 h6 Nf6 h5 Qb6 h7 Qa7 h6 Nc6 Qe2 Ne5 Qe3 Ng6 Rh4 f3+ Kh1 f2 Nf3 Bh3 Bg2 f1N Nbd2 b1N Ne1 b2 Nb3 Nc3 Rc4 b1N Bb2 Nfd2 Nd3 Nf3 Ra5 Nfe5 Bf3 Ne2 Be4 Rg8 h8R Nef4 h7 Rc8 Bg2 Rc7 Bf3 Rg7 Rg8 Rb7 h8Q Rh7 Rg7 Rh4 Rh7 Kd7 Rh6 Ne8 Qg7 Nc6 Qc3 g2+ Kh2 g1B+ Kh1 Bf2 Be4 Kc8 d7+ Kc7 d8B+ Kd6 Bg2 Ne5 Bf3 Kd7 d6 Ke6 d7 Kf6 Bc6 Kg7 Bd5 Nh8 Rf6 Nhg6 Bc6 Kh8 Bd5 Nd6 e8Q Rc7 Ba8 Bg3 Qe6 Ne8 Qc6 Bc5 Qb5 Rb7 Bc7 Bd4 d8N Bc5 Bb6 Re7 Nb7 Bd4 Bd8 Bb6 Qe2 Bbf2 Qe3
n2Q1Nb1/5P2/KBn3pb/nRrn1NQp/3bR3/2Q1BBq1/1Rr2N2/1k2r3 b - - 0 1 illegal: No possible last move, all moves rejected
1q1R1B1N/1Q3p2/nkNQ2q1/1pR2RB1/bq2rr1Q/6q1/K1B1n1Pb/5Nq1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 e4 Kd7 a4 h5 d4 b5 Kd2 c5 Kc2 Kc7 Kb2 b3 g6 h4 e5 h3 g7 c4 e6 h2 a5 f3 e7 f2 e8Q Qg5 a6 Qg6 a7 Qh5 d6+ Kb6 d7 Qh6 d8R Qg6 d5 Bg4 d6 Ne7 g8N Rh4 d7 Nf5 Bg5 Nd4 Qee1 Na6 Bd3 f1Q Ne2 Bd6 Nd2 Qf3 Nf1 Qg3 Nf4 Ne2 Bc2 c3+ Kb1 b2 Ne7 Rc8 a8Q Rc4 Nc6 Re4 Ka2 Be5 Rg1 h1Q Rc1 Qhh2 Qd6 Bf3 Bh6 Rg4 Bf8 b1Q+ Ka3 Qb4+ Ka2 Qh8 Rh1 Qhg8 Rh5 Rh4 Rf5 Qh8 Ba4 c2 Qf2+ Bd4 Qe1 Bg1 Bb3 Bh2 Qc8 Qgg7 Ng6 Rhf4 Ba4 Qhg8 Nh8 Q7g6 Qa8 Q3g4 Qh4 Qg3 Rb1 c1Q Bc2 Qe3 Rd1 Qg1 Rdd5 Nd4 Rc5 Bd1 Rc8 Ne2 d8B+ Nc7 Bg5 Na6 Bd3 Ba4 Bc2 Q8g7 Rd8 Qe5 Qd2 Qc7 Qd6 Qb8 Qb7+
2B3B1/3QbNB1/1R1qQ3/n1kn2n1/2nprp2/2NqrR1P/3rQ1N1/4KbR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 c4 Ke7 e4 Kd6 b4 a5 h3 f5 b6 g5 b5 f3 b7 f2+ Kd2 a4 e5+ Kc5 b6 d5 h6 f4 h7 g4 e6 g3 e7 a3 e8N g2 Bb2 a2 Nf3 g1N Ne1 d3 Nc3 Qd6 Qe2 Ra4 Ng2 Nc6 b8R Ne5 b7 Ne7 Kd1 Ngf3 Rg1 Rg8 h8Q d2 Qf6 Rg3 Qe6 Ng5 Rb1 a1N Rc1 Kb4 c5 Nc4 c6 Re3 c7 Nb3 Ba1 Bd7 c8B Nba5 Rb1+ Kc5 Rb6 Bb5 Ra8 Rd3 b8Q Re3 Qb7 Ba6 Qbd7 Rb4 Kc2 d1R Ra7 Rd4 Kc1 Rde4 Kd1 Rb2 Rab7 Rc2 Rb3 Ra2 R7b6 Rb2 Nf6 Bb5 Ng4 Rc2 Ne5 Rd2+ Kc1 Ba6 Nf7 Bb5 Nb1 Ba6 Bg7 d4 Nc3 Nd5 Ra3 Rc2+ Kd1 Be7 Qf3 Rb2 Bd3 Bb5 Qe2 Ra2 Bc2 Rb2 Bb3 f1Q+ Ne1 Qf3 Ng2 Rd2+ Ke1 Re5 Ra1 R3e4 Rf1 Qd3 Rf3 Re3 Kf2 R5e4 Rg1 Ba6 Ke1 Ne5 Nd8 Nc7 Qf6 Qc2 Bg8 Nd5 Nf7 Bd3 Qfe6 Nec4 Rg3 Rf3 Qe3 Bf1 Qe2 Rfe3 Rf3 Qb1+ Kf2 Qd3 Ke1
6nN/k3qqQB/4qN2/R2B3p/K3b3/b2Rnnpr/1rn1RNBP/1Q3Q2 b - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 e5 a4 exd4 axb5 c5 Bd2 c4 Bh3 c3 Kf1 cxd2 Kg2 Ba6 Kg3 Qf6 Bf1 Qd8 Kg2 Bc8 Kf3 g5 Ke4 d5+ Kd3 Kd7 c4 Kc7 Kc2 Kb7 Kb3 a5 f4 h5 e4 g4 e5 g3 f6 d3 c5 d4 e6 Qb6 c6+ Ka7 e7 Bf5 e8B Qa6 f7 Ne7 c7 Qh6 c8B Qf6 Bg2 Qa6 Qf1 d1N Nd2 Kb6 Bcb7 Ng6 Ne4 d2 Nf6 d3 Ka4 Nd7 b4 Nh4 Nh3 Nf3 Bd5 Ka7 Nf2 Be4 f5 Qe6 Rg1 Bc5 f8Q Ne3 Bg6 d1N Ra2 d2 Qg7 Rhb8 Bh7 Nc2 Ra3 Qf7 Rd3 Nde3 Rh1 d1Q b6+ Ka6 b7 Qe2 b5+ Ka7 Rg1 Ba3 b6+ Ka6 Ne8 Nf6 Rh1 Ng8 f6 Qe7 f7 Qe6 f8N Ra7 Kb3 Qe1 Nf6 a4+ Ka2 Qb4 Ng6 Qbe7 Rg1 Rf8 b8R Rb7 Nh8 Rf7 N6g4 Rf4 Nf6 Rh4 Re8 Rh3 Rh1 Rb8 b7 Ka7 Rg1 Bb4 Rh1 a3 Kb3 a2 Ka4 Ba3 Rg1 a1Q Rh1 Qa2 Rg1 Ra8 b8Q+ Ka6 Qb2 Rb8 Qbb1 Rb2 Ra8+ Kb6 Ra5 Q6f7 Qfd1 Qfe6 Re1 Q6f7 Re2 Qfe6 Rb5+ Ka7 Qf1 Qc4+ Ka5 Qcc7+ Ka4 Q7f7 Rc5 Qce7 Ra5+
6nb/NQ1BBN1R/2p3K1/1RN1Bnbp/3rq1n1/1Q1b1PQ1/2R1k1b1/4rq2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 a5 b4 c6 b6 h6+ Kg6 e5 b7 h3 f3 h2 b5 a4 b6 e3 g5 e2 d6 Kd3 d7 a3 Bb2 e4 Bh3 e1B Be5 e3 Ra2 e2 Nc3 Ra5 Qb3 Bg7 Rc2 Qe7 d8N a2 Bd7 a1Q Nf7 Bh4 Nh3 e1N Nb5+ Ke2 Nf2 Ng2 Na7 Ne3 Nd3 Rd5 Nc5 Qf1 d4+ Kd1 Kh5 Nf5 g6 Rd6 d5 Bg5 Bf4 B7f6 g7 Qe4 Kg6 Re6 d6 h5 Be5 Ke1 Rg1 h1B Rg3 Bg2 Rg4 Na6 b8Q Nb4 b7 Nd3 Qc7 Re7 b8R Nf2 Rb5 Ba6 Rg3 Ng4 Qb7 N8h6 g8Q Bg7 Qgb8 Ng8 Be8 Rh7 d7 Bh8 d8B Rd7 Be7 Rd4 Bd7 Kd1 Ra5 Bd3 Rb5 Ke1 Nd8 Rf7 Qd6 Rf8 Nf7 Re8 B5f6 Qee2 Kh7 Nh2 Bf8 Bf4 Rg7 Bg5 Kg6 Ng4 Rh7 Qe6 Qdb8 Kd1 Bd6 Qd5 Bf8 Re1 B8e7 Qe6 Qg3 Qe4 Rc4+ Kd2 Be5 Ke2 Rc2+
1n1b1N1R/2Rp3Q/brPqqQ1n/r6k/BBp2Nrn/7Q/2nB1K2/N2R4 b - - 0 1 illegal: No proof kernel
b2rQ1R1/1P5B/nqnNrR2/1RNN1pBq/1rr3p1/1Q5q/B4K1b/2kQ4 b - - 0 1 illegal: No possible last move
5r1B/1pK2bR1/bp1Nq3/Q1nQ1n1B/1R1Nq3/5r1b/QB4P1/bN1Rkn2 b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 d5 cxd5 g5 h4 Qf6 hxg5 Qe7 b5 Qd8 b6 axb6 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 e4 f5 a4 c5 d6 h4 d5 f3 g6 f2 g7 c4 a5 h3 d7 f4 d6 c3 a6 h2 a7 f3 Ra6 c2 Qe2 Nh6 g8R Qe8+ Kd5 Bg7 d8B Nd7 e5 Nc5 d7 Nf5 e6 Rh3 e7 Ba1 Bb2 c1Q Rg7 Qe1 Ra4+ Kb3 Qe6 Kc2 Rb4 Kd1 Ne2 Rb8 Rg1 h1N a8Q Nhg3 Nd4 Qg6 Bd3 f1B e8N f2 Bf6 Qg4 Be4 Ba6 d8Q f1B Nd6 Bfc4+ Ke5 Qh4 Qd5 Qh7 Q8g8 Nf1 Qge6 Qh6 Rh1 Qeh4 Bf3+ Ke1 Bh5 Rf3 Qf7 Be6 Rg1 Rf8 Qg8 Bab5 Qa5 Be8 Qf7 Ba6 Qda2 B6d7 Qfd5 Be6 Rg6 B8f7 Bh8 Ne3 Rg8 Bh3 Rg7 Qg4 Ne8 Qh7 Kd6 Qhe4 Kc7 Qge6 Nd6 Nf5 Nc8 Kf2 Rg5 Nh2 Rd1 Nf1 Nd6 Rc3 Rg7 Rf3 Rd2+ Ke1 Rd1+
1b1N3K/pB1kqQRb/5P2/nQ2R3/r2pnQ1B/1R3Bb1/2q1Nb1N/5rn1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 e5 Kd3 g5 Ke4 d3 c4 d2 f4 g3 b4 g4 h4 g2 b6 d6 b7 g3 c5 Na6 b8Q Kd7 c6+ Ke8 c7 Qd7 f6 Qh3 f7+ Ke7 h5 Ke6 f5+ Ke7 h6 Qh4+ Qg4 d1N b5 Nb4 b6 Kd7 h7 Nc6 b7 Qe7 Qf4 Na5 Nf3 g1B Nc3 g2 Rh5 Bf2 Ne2 g1Q Nh2 Qg6 Bg2 Bg3 Kd5 e4 Bf3 e3 Ra4 Bh6 f8Q Nf2 Qf7 Nh3 Rb4 Bf2 Rb3 Ng1 Bd2 Qg2 Be1 Nf6+ Kd4 Rd8 h8R d5 Rg8 Ne4 Rg6 Bg5 Rg7 Bgh4 Rhg5 Bhg3 Rh5 Rh8 Rhg5 Rh4 Rh5 Kc6 f6 Bf5 c8B Bh7 Qbe5 Rb8 Qeg5 Qf8 Ke5 d4 Ke6 Qd8 Nf1 Rh1 Nh2 Qf8 Qgf5 Qc5 Q5e5 Qc2 Qeg5 Qh3+ Ke7 Qe6+ Kf8 Qd7 Qge5 Qc7 Qee8+ Qd7 Re5 Kc7 Rg4 Qe7+ Kg7 Kd6 Qb5 Kc7 Nc1 e2 Kh8 Kd8 Rg7 Kc7 Bd2 e1B Ne2 Kd8 Bc1 Bb4 Bd2 Bd6 Be1 Bc7 Bh3 Rc8 b8N Bd6 Bhg4 Rc4 Bc8 Ra4 Bb7 Bc7 Nc6+ Kd7 Qh6 Bd6 Qf4 Bb8 Nd8+ Kc7 Nf1 Nh3 Rgg5 Bh4 Rb1 Bg1 Qb2 Kd7 Nh2 Be3 Rg4 Rf1 Rg7 Ng1 Bg3 Bf2 Qb6 Qc6 Rb3 Qc2 Qc1 Bg5 Bh4 Bf4 Qb4 B4g3 Qf4 Raa1 Qc5 Ra4 Qb5+
2b2nR1/2QB1Pr1/2nKb1Rb/Q1p2B1b/4p1R1/1N1Qr1k1/2N2q2/1Nb1B1b1 b - - 0 1 illegal: No possible last move, all moves rejected
B4b2/1bR1b1Q1/1PrQ1N2/q1p1B2n/Q4prr/3N1k2/R1rN1B1b/R4Kn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 Kd6 b4 f5 e4 g5 b6 a5 b7 c5 h5 g3 b5 a4 h6 g2 h7 g4 Rh2 g3 Nd2 a3 Nh3 g1B Nf2 f3 Qa4 g2 Nd3 Qa5 b6 Nd7 b8R a2 Rb7 f4 Rc7 Ngf6 Bb2 Nh5 e5+ Ke7 e6 Kf6 d6 Kg5 d5 Kg4 e7 f2+ Ke2 Ne5 e8N Bb7 d7 Nf3 d8B Rc8 d6 Be7 d7 Bf8 Rh3 Bh2 Bh4 g1R Bg2 f1R d8Q Rc1 Qd6 Rc2 Be5 Be7 Bh1 Rg2+ Bf2 Ng1+ Kf1 Rg3 Rd7 Rc6 Rc7 Rg2 Re3 Rg3 Re2 Rg2 Rd1 a1B Rb1 Bc3 Ra1 Bd4 Nb3 Kf3 Nf6 Rg8 h8Q Rg4 Qg7 Bf8 Be1 Bf2 Rd2 Bh4 Bf2 Bg5 Re2 Rh4 Rd2 Rc3 Rda2 Rc2 Nh7 Bd8 Nf6 Bde7 Nbc1 Bc8 Qdd4 Re6 Bg3 Ba6 Qdd7 Ke3 Nb3 Bc8 Be1 Rgg4 Ba8 Rc6 Qd6 Bb7 Bf2+ Kf3 Nd2+
bR3K1b/4PN2/QQ6/rNr2n1n/3k2pR/r1bBp2Q/1Bb2q2/1RB2rN1 b - - 0 1 illegal: No proof kernel
1Q6/k1Rp1r1N/1Rr2b1B/1n1q2BN/qpqR3q/Q2P1nq1/2Q1N1B1/1K3n2 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 g4 c5 f4 h5 a4 e5 b6 e4 g5 c4 b7 b2 g6 c3 g7 e3 d3 e2 f6 c2 Kd2 e1N f5 h3 a5 h2 a6 h4 a7 h3 Nf3 Qa5 f7+ Kd8 f6 Kc7 Ra4 Kb6 Ne5 Rh7 Ra2 Be7 f8N Nc6 f7 Qa4 Ng4 Nf6 g8R Nd4 Bg2 Nb5 Rg6 Rc8 a8Q Rc6 Nc3 b1Q Ne2 Nh5 Nf6 Ng3 Nh5 Bf6 Rf1 h1Q Rf4 h2 Rd4 Rg7 Nh7 Qb2 f8B Rf7 Bh6 Nf3+ Ke3 Qa1 Ra3 Qe1 Rc3 h1Q Rcc4 Q4a2 Qa3 Qh4 Bd2 c1Q Qc2 Qb3 Rc5 Qd5 Rcc4 Rc8 Rc7 Qaa2 Bg5 Qab3 Rh6 Qa4 Rg6 Ka7 Bh6 Be5 Rb6 Bf6 Bg5 Qb2 Bc1 Qbc3 Bd2 Qcc4 Bc1 Ng1 Bh6 Qf2+ Kd2 Nf3+ Kd1 Nf1 Bcg5 Qfg3 Kc1 Re8 Kb2 Re6 Kb1 Rc6 b8Q#
3BN2B/1Q1N2K1/rbbrp2R/4P1k1/1r4qR/2qBR2p/1Q1bq3/4NnbQ b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Ra4 Na6 Ra1 Nc5 Kd2 Ne4+ Ke1 fxg4 Ra5 g3 Ra2 g4 Ra1 Ng5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 Kf7 Kd3 Kg6 Ke4 a5 Ke5 h5 e4 d5 c4 g2 b4 a4 f4 g3 f5+ Kf7 c5 e6 c6 a3 b6 d3 b7 a2 b8N h4 g6+ Ke7 f6+ Ke8 c7 d2 g7 Kf7 b5 Kg6 f7 d4 b6 d3 b7 Kh6 Bb2 Bd7 c8Q Bb4 f8B Ra6 Na3 Ne7 Kf6 Bc6 Nd7 Nf5+ Be7 Ne3 b8Q Qg8 Nf3 g1B Ne1 g2 Nc4 h3 Nd6 Bf2 Ne8 g1B Qcb7 Ba5 Rb1 a1Q Bd8 Bb6 Be5 Qc3 Rb4 Bg3 Rh2 Bf4 Re2 Kh5 Qc1 d1R Qb2 d2 Q8a8 Rb1 Bd4 d1Q Rc4 Qh7 g8R Qf5+ Kg7 Bg5 B4f6 Qg4 e5 Qdc2 Ra4 Rd1 Rb4 Rd6 Rc4 Rh6 Rh8 Kh4 Rb4 Rh5 Rh6 Q2d3 Bg2 Nf1 Re3 Qdd2 Be4 Qde2 Rg6 Rh8 Bd3 Rf8 Kh7 Kh5 Bh8 Rf4 Ra4 Rb4 Kg7 Bb5 Qh1 Bc6 Qb7 Bf4 Re4 Bd2 Re3 Rb5 Rae4 Rb4 Rc4 Qf4 Rf6 Kg5 Rd4 Qf5 Rh4 Qfg4 Rfh6+
4nb1N/1kq1prn1/R1pn2r1/2R5/2Pq4/3NN1BQ/BnQ2Q1R/K2B1q1r b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 h3 fxg4 Ra6 g3 Ra1 g2 Na3 g5 Nb1 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd4 Rh3 Qd7 Rh1 Qd8 d4 Kd7 Kd2 Kc8 Kc3 h5 b4 a5 Kb2 h4 f4 e3 b6 e2 f5 e1R b5 a4 g5 c6 b7+ Kc7 d5 h3 b6+ Kd6 f6 h2 g6 Re4 f7 Rf4 g7 Nd7 b8Q+ Qc7 b7 Rh7 Nd2 Kc5 d6 Kb6 Qc8 Nc5 b8R+ Nb7 d7 Nf6 d8N Ne8 Ngf3 g1Q g8B g2 Be2 Qf1 Ne5 g1Q Nd3 a3+ Ka2 Qc5 Qh3 Qd4 Nc4+ Ka6 c3 Nbd6 Rb5 Rh8 Kb1 a2+ Kb2 Rh6 Qc2 Rg6 Rc5 Rf5 Bf4 Ka7 Rd1 a1N Ne3 Nb3 Bg3 Na5 Ka1 Nac4 Rb1 Rb8 Bd1 Rb5 Rb4 Nb2 Ra4+ Kb8 Ra6 Rf3 Rg1 h1N Rg2 Rb4 Rh2 Rf5 Be1 Ng3 Bf2 Nh5 Bg3 Bg7 f8Q Rf7 Ne6 Kb7 Nef4 Rf5 Be6 Rf7 Ba2 Rb3 c4 Ra3 Qh8 Bf8 Qf6 Nhg7 Qff5 Rgf6 Ng6 Ra5 Nh8 Rg6 Qff2 Rb5 Rh5 Rbg5 Bf4 Rg1 Rc5 Rh1 Bg3
4qQR1/BK1b1Q2/6nN/Nb1R3r/2qbp3/p1P2N1B/R5pn/BQk2r1q b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 a5 b4 e5+ Kc4 g5 f4 g3 f6 d3 c3 a4 h5 g2 b6 d5+ Kb5 d4 f5 d2 h6 Ke3 b7 g4 f7 g3 f6 e4 h7 d3 Nf3 g1Q Bh3 g2 Bb2 a3 Ra2 Nd7 Kc6 Qe8 b8B Bc5 f8Q Nh6 f7 Qf1 b5 Bd4 b6 Ng4 b7 Nh2 Ba7 Ne5+ Kc7 Bd7 b8R Ng6 Kb7 Bb5 Ba1 Qe2 Qe1 d1B Nbd2 Bda4 Nb3 d2 Qb1 d1Q Na5 Qc4 Qg8 Bd7 f8Q Bab5 Qgf7 Qe1 Rf1 Qc1 Rff2 Qh1 Rd8 Rc8 Rfd2 Rc5 Ra8 Rh5 Rb8 Rg8 h8N Rg7 Q7g8 Rgh7 Nf7 Rf5 Rc8 Rhh5 Nh6 Rf6 Qgf7 Rf4 Nh4 Rf1 Nf3 Bc5 Rd5 Bd4 Qb2 Kd3 Nd2 Ke2 Nf3+ Kd1 Qc5 Qe5 Rg8 Qe8 Qbb4 Kc1 Qcf8 Qd8 Qb3 Qe8 Qb1+
B1QN1Bn1/1B6/R1R1pQqp/NrnpK3/2Q1N3/2rPb3/2n1bb2/R1q1k3 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 c4+ Kd4 g4 a5 b6 h3 g5 e6 g6 h6 d3 e3 c6 h2 c7 d6 c5 a4 c6 a3 b7 a2 g7 e2 Nf3+ Kc5 Bg2 Kb4 Nc3 e1Q Nd2 Ra5 Nb3 Qf1 Ne4 Na6 b8N Qe8 Qc2 Rb5 Na5 Bb7 c8Q Qg6 c7 Nc5 Be3 Qb1 Rc1 h1N f3 Ng3 Nbc6+ Ka3 Qa4+ Kb2 Qc4 Nf5 Nd8 Nd4 Bd2 Be7 Bb4 Nc2 Bh1 Bh4 Bg2 Nf6 g8R Bf2 Rf8 Ng8 Rf5 Na4 Rc5 Bd5 Rc6 Nc5 Ra6 Ba8 Qd7 Rh7 c8B Re7 Qe8 Rc7 Bb7 Rc8 Qd7 Rc7 Qc8 Rc6 Rh1 Rc7 Rh5 Kc1 Rf5 Kd1 Re5 Nb3 Rc5 Ke2 Rcc6 Nc5 Bc3 Kd1 Bg7 Ke1 Bh1 Qh7 Bf8 Qc1+ Kg4 Be3 f4 Qg6+ Kf3 Bf2 f5 Be3 f6 Bf2 Rb1 a1B f7 Bad4 Ra1 Bde3 Be7 Qh7 f8Q Qg6 Qf6 d5 Rcb6 Rb3 Bc6 Rc3 Bg2 Na3 Bf8 Qg5 Bf1 Rg7 Be2 Qg6 Bd1 Rb7 Bc2 Rb8 B2a4 Bb7 Qd7 Bc8 Ba8 Bb7 Rd6 Bc6 Qc8 Bd7 B4c6 Rb6 Bcb7 Ba4 Ng5 Rb5 Rdc6 Bd1+ Kg2 Qh7 Ne4 Be2 Kh3 Nc2 Kg2 Bf1+ Kf3 Qg6 Nd2 Bd4 Kf4 Bde3+ Ke5 Be2 Ne4
1q1b1rNq/4Q2b/n2p1n2/n4BR1/2RBRB1p/kp6/2PQ1N2/QK1Nq2r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 b5 g4 e5 a4 Ke7 f4 Kd6 g6 Kc5 f6 h5 g5 e4 g7 d6 a5 d3 a6 h4 g6 b3 f7 Kb4 f5 b2 f6 Nc6 a7 Bg4 Ra4+ Kc5 Nh3 b4 Nc3 b1Q Nf2 b3 Bh3 Qa1 Re1 Be7 f8B Nb4 f7 Nf6 g8R Qb8 Bg7 Na6 f8Q Bd8 Qe7 Bf5 Qf3 Qb2 Ncd1 Qe5 Rd4 e3+ Kc3 e2 Kb2 d2 Kb1 Be4 Bf5 Bd3 Rf4 Be4 Rg4 Kb4 Qc3+ Ka4 Rg5 Qd4 Re8 Rf8 Bh8 Bd3 g7 Qe5 Reg1 e1Q g8N Qd4 R1g4 Be4 Ne3 d1N Bd2 Nb2+ Ned1 Nc4 Bf4 Ka3 Bg7 Bb6 Rc8 Na5 Rc4 Bd8 Qd2 Nh5 Bf6 Qc3 Bd4 Bd3 Bg3 Nf6 Re4 Rf7 Bf4 Rg7 Rh5 Rg1 Rg5 Rh1 Bfe3 Qb5 Bf4 Rc8 a8Q Qb8 Re3 Be4 Qc6 Bd3 Bh3 Bh7 Bf5 Bb6 Qf3 Rf8 Re4 Bd8 Qg3 Qf3 Qh3 Qh5 Qhc3 Qh6 Rc7 Qg7 Rc4 Qh8 Qa1#
rqQNKR2/b3pB2/6pP/1rp1r3/4N1B1/n1R2N1n/1Q2RQb1/kqb1B3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 b5 a4 g3 f4+ Ke4 d4 g2 h4 g6 h5 b3 h6 b4 a5 c6 a6 b2 d6 b3 a7 Ba6 d5 Qc7 d7 Rh7 d8Q Rh8 d6 Bb7 f6 Ba6 f7 Nf6 d7 Bb7 f5 Nd5 f6 Nf4 Ra3 Nh3 Qc8 Bg7 d8N Rf8 Nf3 g1B+ Be3 Qf4 Qd2 Na6+ Kb6 Qg3 Bc4 Nb4 Bf2 Nc2 Rh2 Qb8 Be6 Bh8 Bg4 Bg7 Qb4+ Kd3 Nc3 b1R Ne4 Bh8 Qd2+ Kc4 Qc1 b2 Rc3+ Kb4 Qd2 Na3 Qc2 Re1 Qc1 b1Q Qb2+ Ka4 Rg2 Re8 f8Q Re2 f7 Be5 Qg7 Bf4 f8R Bc1 Qf6 Re3 Be1 Bf2 Ne6 Rd8 Qh4 Rd5 Nd8 Bg1 Qf2 Ra5 Ned2 Ree5 Rh2 c5 Rg2 Bh2 Ne4 Bhf4 Qg1 Bg3 Re2 Bh2 Qf2 Bc6+ Nb7 Rb5+ Ka6 Qc7 Nd8 Rb3 Nh4 Rb5 Nd2 Bg2 Ne4 Rf5 Nf3 Bd6 Qd7 Re5 Qe6 Rab8 a8B Qc8+ Ka7 Bc7 Bb7 Bb6+ Ka6 Qc7 Qc8 Ba7 Bd5 Ra8 Bf7 Qd6+ Qc6 Bb6+ Kb7 Ba7+ Qb6 Qb8+ Kc6 Re6+ Kd7 Re5 Qd2 Kb4 Qe6 Ka4 Ke8 Kb4 Rc4+ Kb3 Qdd4 Qa2 Qc8 Qb1 Bd2 Ka2 Be1+ Rb2 Qd2 Ka1 Rc3 Rb5 Qb2+
6Nr/Q1bpkN1N/3R4/1K3b1B/nP1qr2p/3r1pB1/RQqQ4/1B1b2Rn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 h5 Kd3 a5 Kc4 f5 g4 d3 b4 h4 e4 a4 b6 a3 b7 f3 g6 a2 e5 d2 g7 f2 e6 f4 g5 f3 g6 Rh7 e7 Rh8 Bd3 f1Q Nc3 Nf6 g8R Qe1 g7 Nc6 b8Q Qa5 Nd5 Rh7 Qa7 Rh8 Nh3 Ne4 Rg1 Bb7 Ng5 Qc7 Kb5 Ng3 c4 Nd8 c5 Qe3 c6 Nh1 Bb1 Qd4 Nf7 Ne6 Qc2 d1B Qd2 Qh2 c7 Nc5 Qb2 Rd8 c8Q Qc2 Bf4 Na4 Qcc3 Rc8 Bh2 Rc4 Qd2 Rc3 Rg6 Rd3 Rd6 Ba8 Bg3 Bb7 Nf4 Be4 Nh3 Bh7 Nhg5 Bf5 Nh7 Nb6 Nfg5 Na4 Nh3 Kf7 e8B+ Ke7 N3g5 Kd8 Rb6 Bd6 Bh5+ Ke7 Nf7 Bc7 Rd6 Qb3 Bc2 Qbc3 Ra8 Qb3 Rc1 a1R Bb1 Qc2 Rg8 Be2 Rg1 Bd1 Rb8 Ra2 Rbb6 Raa3 Ra6 Re3 Ra5 Re4 Raa6 Rd3 Ra5 Nb6 Ra2 Na4 g8N+
1RR2K2/pq1R3q/2rp2QP/kQ2B3/N2nqN2/N2nrB2/1b2B1p1/3b1Q1n b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 e5 Kd3 g5 Kc4 d6 Kd5 Kd7 c4 Kc7 f4 Kb6 b4 d3 h4 d2 f6 g3 h5 e4 c5+ Kc7 f5 g4 f7 e3 b6+ Kb7 b5 g2 f6 g3 Na3 e2 Qc2 e1Q Qg6 d1N Bb2 Nf2 Be2 Rh7 Be5 Nd7 Ke6 Nd3 c6+ Kb8 c7+ Kb7 Nh3 g1Q Rc1 g2 Nf4 Bg7 f8Q Nf2 Kf7 Nc5 h6 Bg4 c8B+ Kb8 b7 Kc7 b8R Ne7 Rc2 Nf5 Bb7 Kb6 Bbf3+ Ka5 b6 Ncd3 b7 Nd4 Rc7 Qc8 Rd7 Qgf1 Rh4 Nh1 Kg8 Qb4 f7 Qfb1 Qe8 Bh8 f8Q Re7 Qff7 Qc6 Kf8 Qe4 Rc8 Bh5 b8N Qbb7 Na6 Qc2 Nc5 Bf6 Rcd8 Rc8 Na4 Rc6 Rc8 Bh8 Qg3 Bg4 Qf2 Qh7 Qf1 Qc4 Qg6 Qd5 Bg7 Re3 Be5 Qe4 Rh5 Be6 Rf5 Bb3 Rff7 Bd1 Rdd8 Bf6 Rfd7 Bh4 Rb8 Be1 Rdc8 Bc3 Qee6 Ba1 Qb3 Bb2 Qb5+
5R2/B2R3B/1npb1R2/3QNbr1/b3rQq1/2pQBNPk/1Np2n2/2Kb1b2 b - - 0 1 illegal: No proof kernel
4n3/k1q1B2K/1bn1RQrn/Br2p3/1Nnpp1b1/5QR1/r1NPN2Q/2B2R2 b - - 0 1 legal: proof: e4 f5 a4 fxe4 g4 b5 axb5 h5 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 Ke2 a5 Ke3 g5 c4 d5 h4 Kd7 f4 Kc6 h6 b4 c5 b3 h5 a4 h7 a3 f5 e6 f6 a2 h6 b2 f7 g4 Kf4 g3 Rh3 g2 Na3 b1R Qf3 d4 Ne2 g1N Rg3 Be7 f8B Na6 b8B Kb7 Bc7 Rb4 Nc2 Rb5 Rb1 Bh4 Be7 a1N Kg4 Bf6 Kh5 Nb3 Kg6 Na5 Ra1 Ra7 c6+ Ka8 Rb1 Nc4 Ra1 Qd7 Bcd8 Nc7 b7+ Kb8 Ra6 Ne8 Ba5 Ra8 Rb6 Bh4 c7+ Ka7 b8N Bg5 Na6 Bh4 Qf5 Nf3 Nab4 Qd6 Qh3 Bd7 c8R Qc7 Rd8 Bc8 Rd5 Bd7 Rf5 Nfe5+ Kh5 Bf6 Rf1 Nc6+ Kg6 e5 Qg2 Bg4 Qf3 Nd8 Re6 Nc6 Bd6 Bd8 Bf8 Ngf6 Be7 Rf8 h8Q Ng8 h7 Nh6 Qg7 Rf5 h8Q Rg5+ Kh7 Rg6 Rh3 Qb8 Rg3 Bb6 Qgf6 Qc7 Qh4 Rd8 Qh2 Rdd5 Nd3 Rb2 Qhf6 Ra2 Ndb4 Rc5 Re1 Rb5 Rf1
2Nq1n1b/bbBB1Bk1/P5r1/r1Rn1pRb/1p1K1N2/1R6/2N1pQQ1/4Q1n1 b - - 0 1 illegal: No proof kernel
5r1B/1Q1K1n2/3bNQ1p/R2p2r1/1pqNbR2/nP3n2/Q3RNkn/q2BB3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 Bc4 gxh4 Be2 b4 Ba6 Qa5 Bf1 Qb5 axb5 Ba6 Ra5 Bb7 Ra1 Bc8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 c4 d3 f4 h3 g4 h6 c5 a4 b6 a3 g5+ Ke7 f6+ Kf7 b7 Kg6 c6 Kf5 g6 a2 f7 e4 c7 e3 g7 e2 Nf3 Kg4 f5 Kg3 f6 e1N Nbd2 h2 Be2 d6 Nd4 Nf3 Qf1 Nc6 b8B Bf5 c8Q Ra6 Qb7 Be4+ Ke6 Nd8+ Kd7 Ra5 Bd1 Rg5 b3 Be7 f8N Nf7 Nfe6 Bf8 Ba7 d5 Bb2 Bd6 Qf2+ Kh3 Re1 h1Q Re2 Qf1 Bc3 Ne7 g8R Nc8 Bb8 Na7 Rf8 Nb5 Bc7 Na3 Bd8 Bg6 Ne4 Bf5 Be1 d2 Ng3 Bb1 Nh1 Be4 Bc7 Be7 Be5 Bd6 Ra8 Rc8 Ra5 Rf8 Rc1 a1Q Rc2 Bg6 Re4 Qd3 Rf4 Qc4 Qe2 Bh7 Nf2+ Kg2 Rb2 Nd8 f7 Be4 Bc2 d1N Bh8 Ne3 Bd1 Ng4 Ra2 Rfg8 f8Q Ngh2 Qf6 Nf7 Qb2 Ra8 Qb1 Rag8 Re2 Rf8 Qa2
2Bkq1RQ/q1b4Q/3r2pQ/2B1p1KR/3P1r2/R1p3nb/n2N4/1N1Nnn1B b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 c5 Ke3 b5 Kf4 b3 d4 c4 a4 c3 h4 b4 f6 e5+ Kg5 g6 f4 b2 f5 b3 a5 g3 a6 g2 d6 Qe7 d7+ Kd8 h5 Qa3 f7 Rh6 f6 Qa4 a7 Bb4 f8N Rh8 f7 Nh6 Nf3 g1N Bh3 Ba5 Ra3 Bc7 Nfd2 Nf5 h6 Ng3 h7 Nc6 Qh5 Nb4 Bg4 Rg8 h8Q Na2 Nh7 Rf8 Nf6 Qc6 Nd5 Nf3+ Kh6 Qe6 Ne3 Ne1 Nd1 Qe8 Kg5 Rb8 a8B Rb6 Q5h7 Rd6 Rh6 Bb7 Nf1 Bg2 Rh5 Bh3 Bh1 Ba5 Nbd2 b1Q Bf5 Qe4 Nb1 b2 Nfd2 Qa8 Bg4 Bc7 Be6 Rg8 f8Q Qa7 Qfh6 Rf8 Q7g8 Ke7 d8R Rf6 Rb8 Rf4 Bc8 Kd8 Qgh7 Qg8 Ra4 Nd3 Na3 Ne1 Rb7 Ba5 Rg7 Qe8 Rg8 Bc7 Nb3 b1N Bb2 Nd2 Nb1 Qb8 Ba3 Qa8 Bc5 Qa7 Ra3 Ndf1 N3d2
2r3n1/2RNpQ1R/R1n1q1B1/N7/4QK1n/6Nb/qp2Pbp1/QB1k1Bnr b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h6 g6 Kd7 g7 Ra6 g5 Rh7 g6 Rh8 Bb2 Ke8 Bf6 Ra8 Bg5 hxg5 Kf2 Kd7 Ke3 Kd6 d4 c5 h4 b5 a4 f5 h5 g4 a5 c4 h6 g3 a6 f4+ Kf3 c3 h7 b3 a7 c2 Ra6+ Qb6 Nd2 c1N Qc2 b2 Qe4 Nc6 Rh3 Rb8 a8B b1Q Bb7 b4 Rh4 Nf6 g8Q b3 g7 Nd3 Qf7 Nf2 g8B Bh3 Bc8 Qb2 Bf5 Bh6 Bg6 Qa2 Rh5 Rc8 Rh4 Kd7 d6 b2 d5 Bg5 Rh5 Bh4 Rf5 Kd8 d7 Kc7 d8N Kd6 Rg5 Kc5 Nb7+ Kb5 Na5 Kc5 Rg4 Kb5 d6 Kc5 Qd3 Kb4 Qe4+ Kc3 d7 Qbb3 d8R Qe6 Rd3+ Kc2 Rd7+ Kc1 Rc7 Kd1 Rg5 N2g4 Rh5 Ne3 Ndc4 Nf5 Nb6 Qed5 Nd7 Qe5 Qf8 Qee6 B8f7 Ng8 Be8 Bf6 Qf7 Bd4 Rh4 Bf2 Rh6 Bg2+ Kg4 f3 Nh3 Nh4+ Kf4 Kd2 Ng5 Bh3 Qe3+ Kd1 Bb1 Bg1 Ne4 f2 Bg2 f1N Qd3+ Nd2 Bf1 g2 Ng3 Bf2 Qe4 Ndf3 Rh5 Nf6 Rh6 Rf8 h8Q Ng1 Rh7 Ng8 Qc3 Bg4 Qa3 Bh3 Qff5 Rf6 Bg6 Rff8 Qf7 Rfd8 Nb6 Rd5 Nd7 Rh5 Qaa4+ Qab3 Qec4 Bg4 Ba2 Nhf3 Rh8 Rh1 Qe4 Nh4 Bb1 Bh3 Qa1 Qa2 Rh7
2qbr2r/N1pk2B1/b2rQ3/2KR1p1Q/pNP3B1/2Qq3B/4n1R1/bR3N1q b - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Nbd7 h5 Ng8 Qf3 Ne5 Qd1 Ng6 hxg6 Bh3 Qh5 Be6 Qd1 Bc8 Ke2 h5 d4 a5 c4 e5 b4 h4 b6 a4 b7 f6 b8Q f3+ Ke3 h3 d5 f2 g7 h2 d6 Be6 b5 Bd7 b6 Bg4 b7 Nh6 g8B Bg7 g6 Ra7 d7+ Ke7 Bh3 f1Q Nf3 Ra8 Bb2 Qf8 d8R Ra6 Be6 Rd6 Rg1 h1Q Nfd2 Bf5 Na3 Qd3+ Kf2 Bg4 Rg2 Nf5 Nf1 Ng3 Rb1 Ne2 Nb5 Qe8 Na7 e3+ Ke1 Bf3 Beg4 f5 Qc8 e4 b8N Be5 g7 Qd7 Qa6 Qc8 g8Q Bd4 Qg7+ Ke6 Ba3 Ba1 Qc3 Ke7 Nbc6+ Ke6 Re8+ Kd7 Qb6 Nf4 Nb4 e2 Kf2 e1R Re5 e3+ Kg3 e2 Kf2 Bc6 Rd5 Bb7 Bb2 Ba6 Qdc2 Rc1 Qd1 Rc2 Qe3 e1B+ Kf3 Bh4 Qe2 Qd4 Qe4 Qd1 Ke3 Bd8 Q2f3 Qe2+ Kd4 Qd3+ Kc5 Ne2 Qee3 Rd2 Qh6 Rd1 Qe4 Re1 Qh5 Nf4 Qee5 Re2 Qf6 Ree8 Qfh6 Ne2 Q6g6 Bg5 Qe6+ Kd8 Qc1 Be7 Bg7 Bg5 Qg8 Kd7 Qc3 Bd8 Qe6+
n3knr1/Bn1b1NB1/2p3Np/2r2B2/3Q2KR/p1Q2nR1/1n2NqRP/3Q3q b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 g3 f5 Na3 f3 Nb1 f4 Qb3 f2+ Kd1 f3 Kc2 Bd6 Qa4 Bf4 gxf4 Qh4 Kc3 Qh6 Qd1 Qg5 Kc2 Qd8 e4 a5 b4 g5 d4 c6 Kd2 g4 Ke3 h6 e5 c3 f5 c2 Kf4 g3 e6 g2 d5 a4 e7 a3 d6 Qd7 b6 Ba6 f6 Bc4 b7 Bb5 Nc3 Ra7 Ne4 Ba6 b5 Qd8 b6 Qd7 Bd3 f1Q Ne2 g1N Bb2 c1N Ra2 f2 Ng5 Nb3 Bf5 Nf3 Kg4 Na5 Nf7 Qc7 Be5 Nd7 b8Q+ Bc8 b7 Qb6 Rg1 Nf8 Rg3 Qh1 Qc7 f1N b8B Ra6 Ba7 Nb7 Rd2 Qe3 Qa5 Qf2 Qc3 Ra5 Rd4 Rd5 Rg2 Bd7 Rd3 N3d2 Rdg3 Nc4 Bed4 Nfd2 Be5 Rc5 Bd4 Be6 Be5 Kd7 e8R Ne7 Ra8 Nc8 Rb8 Nd8 Rb4 N8b6 Bd4 Na8 Ra4 Kc8 d7+ Kc7 Rb4 Nb2 Ra4 Nb7 Be5+ Nd6 Re4 Nf3 d8Q+ Kb7 Qb6+ Kc8 Qbb4 Kd7 Qbd4 Rg8+ Ng5 Qfg1 f7 Qe1 Bg7 Qf2 Kh3 Ng6 f8N+ Ke8 Nf7 Nb7 Rh4 Bc8 Kg4 Bd7 Ne6 Nf8 N6f4 Bc8 Ng6 Be6 Qcd2 Bd7 Q2c3
2qnK1B1/3np1Nb/1N2b3/pQQ1P1r1/1q2kpBR/1q1R4/1B1QNb2/2R2b2 b - - 0 1 legal: proof: d4 b5 a4 a5 axb5 g5 g4 c5 f4 cxd4 h4 gxf4 h5 Ra6 g5 Rg6 hxg6 Bh6 Nd2 Bg7 Nb1 Bf8 Kd2 d5 Kd3 Kd7 c4 Kd6 b4 Ke5 e4 h5 b6 f5 b5 f3 g7 h4 b7 f2 g6 f4 b6 h3 c5 h2 c6 Qd7 c7 Qe8 Na3 Rh6 Bb2 Bd7 c8Q Rh5 Bh3 f1B+ Ne2 Be6 Rc1 Rg5 Bg4 Qd8 Qd2 Nf6 g8B Bg7 Qc5 Nc6 b8R Qc8 b7 Nd8 Ra8 Nd7 b8Q+ Qc7 Qbb5 Qc8 Ra6 Bf6 Rd6 Bg7 Rg1 h1B Rg2 Bf6 Rh2 Bhg2 g7 Bh3 Bf3 Bhf5 Bg4 Bh7 Rh3 Rh5 Rh2 Bh4 Rh1 Bf2 Rh4 Rg5 Nc4+ Kf6 Nb6 Kg6 Kc2 d3+ Kb3 d4+ Ka4 Kf6 e5+ Kg6 Bh5+ Kf5 Bg4+ Ke4 Bf7 Rf5 g8N Rh5 Nh6 Rg5 Qd1 d2 Bg8 d3 Nf5 Nf8 Ng7 Nd7 Qdc2 d1Q Rd5 Qe1 Q2c3 d2 Rd3 d1Q+ Qc2 Qdd2 Q2c3 Qe3 Qd2 Bhf5 Qbb4+ Qd4 Kb5 Qd1 Qb3 Bh7 Qa4 Nf7 Qac4 Qb3+ Q4b4 Qa6+ Kc6 Nd8+ Kc7 Qdc4 Qb5 Qcb4 Qe1 Nc6 Qec3 Ncb8 Kd8 Nc6+ Ke8 Nd8 Qc2 Qc8 Qd2
B3N1kn/b2Qrb2/RQ3p1p/4Nn1N/Rprp4/BbRK1B2/2n1P1Q1/5q2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 b5 a4 d5 g4 b3 c4 f6 e6 b4 e7 Kf7 e8N h6 a5 b2 g6+ Ke6 g7 Kf7 a6 d3 c5 Qd6 g5 Qb6 g6+ Ke7 a7 Rh7 c6 Qf2 c7 Nd7 Bg2 Ne5 Nf3 Qf1 Nc3 Nf7 Ne5 Nh8 Ra6 Be6 c8R Bf7 Ne4 b1N+ Ke3 d2 Ng3 Na3 Rc3 Rb8 a8B Rc8 Nh5 Nc2+ Kd3 Rc4 Ba3 d4 Bgf3 Rc6 Qb1 d1B Qb3 Rc5 Qd5 Rc6 Ra4 Rc4 Qb5 Ke6 Qb6+ Bd6 Rh3 Ne7 g8Q Nf5 g7 Ke7 Rh1 Bb8 Ra6 Ba7 Ra4 Bg6 Qd5 Bf7 g8Q Rg7 Qh7 Kf8 Qg6 Kg8 Qd7 Na1 Qg3 Bb3 Qg2 Nc2 Ra6 Qf2 Ra1 Qf1 Bc1 Bg6 R1a4 Re7 Qh1 Bf7 Ba3 Rc6 Qh2 Rc4 Qg2+
1Nn1QRK1/1k3rR1/3Ppq2/1rr3pN/p1pB1Q1n/4N2Q/5b2/1b1BRB1b b - - 0 1 illegal: No proof kernel
5QKR/1rpn2QB/k2p1QbR/4nBr1/P5qb/3pb2N/RNp1N2B/5r2 b - - 0 1 illegal: No proof kernel
1nK3b1/RP2k2N/q2p4/1b1Q1N2/3rn1B1/Bn1RQ3/rpp1p1Nb/Q3RB2 b - - 0 1 illegal: No proof kernel
8/NBRr3B/bQq2b1p/4N3/p1QPrBn1/Qp2p1NR/1q1n2kr/3RK3 b - - 0 1 illegal: No proof kernel
3B1Q2/1p3BQ1/2Nk1RnQ/2p1qn2/1bnppRbN/8/N1KBPq2/3Rr1r1 b - - 0 1 illegal: No possible last move
BkrQb2N/1p1q1p2/NrRB4/1P1Bn1K1/2p3Rn/1N3qR1/Q2nr2p/6Q1 b - - 0 1 illegal: No proof kernel
2N5/1Bn1R2B/3prk2/p2P1r1n/2Q2Bb1/QNNpp3/1nR1bQ2/bK1n3R b - - 0 1 illegal: No proof kernel
Nq2B2r/1k2Bp1p/2r2Qpn/KR1p2n1/p4RR1/1QBb4/NQ1N1b1P/7q b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Bb7 d3 Bxg2 d4 cxd4 Kd2 a5 e4 d5 c4 Kd7 b4 Kc8 b6 a4 b5 d3 Kc3 d2 e6 g6 c5 Ra5 Kb4 Bd6 b7+ Kc7 e5 Qe8 e7 Bf3 b6+ Kc6 e6 Be4 Ba3 Bg2 Qb3 d1Q Nf3 Bf4 Rg1 Qe1+ Nfd2 Qh4 Nc3 Qg5 Rb1 Ra7 Na2 Bh3 Rg4 Nd7 b8B Nf8 b7 Nf6 Be5 N6d7 b8Q Bg2 Bc3 Qd8 e8R Bd6 e7 Rc7 Ka5 Qh6 Q8b4 Qh3 Bb5+ Kb7 Rf1 Qc8 Rff4 Bf1 Qb2 Qe3 Q4b3 Qe4 Bab4 Qb8 c6+ Ka7 Rd8 Nf6 e8Q Qh1 Qe5 Ng8 Qf6 Bd3 Rc8 Be5 Be7 Bd4 Re8 Rc8 c7 Kb7 Rd8 Nh6 Be8+ Ka8 Rd6 Ne6 Rb6 Ng5 Rb7 Bf2 Rb5 Rd8 c8N Rd6 Nb6+ Kb7 Qe5 Re6 Qf6 Rc6 Na8+
1K6/p2b3k/P1B1n2q/1RQ1pQ1N/rn2NRp1/1R2BQ1B/3pbbp1/2N3q1 b - - 0 1 legal: proof: c4 c5 b4 f5 bxc5 h5 d4 b5 g4 hxg4 e4 fxe4 c6 Nf6 c5 Na6 d5 Ng8 d6 Rb8 Qf3 Rb7 Qd1 Rc7 dxc7 Nb8 Kd2 Kf7 Ke3 Kg6 Kd4 e5+ Kd5 b4 a4 d6 f4 b3 h4 e3 h5+ Kh7 f5 g5 f6 b2 f7 g3 a5 g2 h6 e2 a6 e1Q Nc3 b1B Bb5 Be7 f8R Bf6 Be3 Bc2 Nge2 Bg6 Rb1 Bcf5 c8Q Qd7 c7 Qg3 c6 Qg7 Ne4 Nd7 Rb3 Qf2 Nc1 Nc5 Qf3 Bd7 Re1 Be7 Rf4 Qg1 Re2 Bf8 Reb2 Ne6 Ba4 Bge8 Rb5 Be7 R2b3 Bh5 Qf8 Bd8 c8Q Bb6 c7 Qg6 Qf5 Ne7+ Kc4 Nc6 Kd5 Rg8 Qcf8 Bc5 c8B Bd4 Qf1 Be2 Qf3 Kh8 h7 Qh6 Bd2 Bf2 Be3 Be8 Qe7 Rg7 Qc7 Bd7 Qb6 Rg6 Qc5 Kg7 h8N Kh7 Q5h3 Rg8 Ng6 Rd8 Rg4 Rf8 Nf4 Rf6 Nh5 Rf4 Nc3 Rb4 Ne4 Rc4 Rf4 Rb4 Rb6 Rc4 Bb5 Ra4 Qf5+ Qg6 Qf8 Ned4 Qc2 Qh6 Qc5 Be8 Bg4 Bd7 Bh3 g4 Rb8 Ne6 Rb7 Ncd4 Bc6 Nc2 Nd2 Bg3 R7b5 Nb4+ Ke4 d5+ Kf5 d4 Ne4 d3 Qf6 d2 Qg6+ Kh8 Kf6 Qf1 Ke7 Bh4+ Kd6 Qg1 Qf7 Bf2 Qf5 Ng7+ Kc7 Ne6+ Kb8 Kg8 Qf6 Kh7 Qf5+
2bN1B1R/2Q1pp1k/2BqBr2/n5pK/1b2p1P1/1N1bR1r1/pQ2Q1Np/4R3 b - - 0 1 illegal: No proof kernel
1N5B/KN1r3n/n3b3/P3q3/2Q3Rk/1rB1R3/b2qN2p/bN1B1RN1 b - - 0 1 legal: proof: b4 d5 h4 a5 bxa5 f5 c4 g5 cxd5 gxh4 e4 Nh6 exf5 Qd7 a4 Qxa4 Qg4 Qd1+ Qxd1 Ng8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 b5 g4 h5 f4+ Kf6 d4 e5+ d6 e4 g5+ Kg7 g6 Kf6 d5 h3 g7 h2 Ra3 b4 Qc2 h4 Bd2 h3 Be2 e3 Qc4 b3 Bd1 e2 Be1 c6 Kb6 b2 d7 c5 d8N Be6 d6 Rh7 d7 Na6 Nb7 Rb8 d8N Be7 Bd2 e1Q Nc6 Qe5 Nd4 Bf8 Bc3 Bd6 Qd5 c4 Ka7 Bf8 Nde2 Bd6 Bb4 c3 Qc4 c2 Re3 c1Q Bc3 Be7 Qd5 Qd2 Qc4 Nh6 g8R Nf7 Rg2 Ng5 Nd8 Rb3 Nb7 Kg7 f6+ Kg6 f5+ Kh5 f7 Bf6 f8B Rd7 Bc5 Nh7 B5d4 Bg7 f6 Kh4 f7 Bf6 Na3 b1B f8N Ba2 Nb1 Rd5 Nd7 Bg7 Nb8 Rd7 Nf4 Bf6 Nge2 Bh8 Rf1 h1Q Ng1 h2 Nfe2 Bf6 Rg6 Qf3 Rg2 Qg4 Bc5 Qdd5 Bf8 Qd2 Bg7 Qef4 Bh8 Be5 Bb4 Ba1 Bbc3 Qe5 Rxg4+
K1BRRq2/1r1P1B2/2b2N2/p2nq1Nb/B1B1r1r1/2k5/Q1BNn2R/6q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 b6 Nb8 b7 Bc5 Ra5 Be7 Ra1 Bf8 hxg5 a6 b4 Bc5 b5 Ba7 b6 c5 bxa7 Qc7 Ba3 Qd8 Bb4 cxb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 h5 d6 h4 d5 a5 g6 f3 g7 f6 g5 h3 g6 f2 d7 b3 d6 b2 Qc2+ Kb4 Kd5 h2 e4 f5 e5 f4 e6 f3 e7 Nc6 b8N Bb7 e8B Rh6 Bd3 f1R Nh3 f2 Nd2 b1Q Ng5 Qe1 Qa2 Qe3 Re1 Rh7 Bc2 Rg1 Re2 Qde7 d8R f1Q Nd7 Rg4 Nf6 Kc3 d7 Rb8 a8B Rhh4 Bf7 Qeg1 Re4 Ba6 Bb7 Be2 Bc8 Nd4 Ba4 Qf8 Ree8 Ne7+ Kc5 Qe1 g8B Qeg3 g7 Rb7 Bh7 Q3e1 g8B Nd5+ Re7 Bf3 Bhc2 Ne2+ Kc6 Qeg3 Re6 Qe5 Ree8 Re4 Be6 Bh5 Bgf7 Ne3 Bc4 Rhg4 B2d3 Nd5 Bdc2 Qd1 Rf1 h1B Rf2 Qg1 Rh2 Rb1 Nb3 Bg2 Kb7 Bf3 Ka8 Rb2 Nc5 Rb7 Nb3 Ne7 Bfe6 Ref4 Bd1 Bc6 Nd2 Re4 Bf7 Nd5 Bdc2
2N3r1/1B2rB2/2bn4/NN2rqk1/4P2N/1KpBpRR1/4qp2/1Q2Rr1N b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 d3 fxe4 Kd2 e3+ Kc3 e2 Kc2 Kf7 Kd2 Ke8 Nc3 e5 Ra4 e4 Kc2 e3 Nb1 Na6 Ra1 Nc5 h4 Bd7 g4 Na6 f4 Be6 Bd2 Nb4+ Kc1 Rc8 Bc3 Ra8 Bf6 Na6 f5 Bd7 Bd4 Bb4 Be5 g5 Bf4 gxf4 g5 Be7 g6 Bg5 hxg5 Nc5 Bg2 Bc8 Bf1 Ne4 dxe4 Kf8 Qa4 Ke7 Qd1 Ke8 Kc2 Ke7 b4 e1R g7 a5 g6 Kf6 d6 h5 b6 c5 b5 a4 d7 c4 b7 f3 b8R f2 b6 c3 b7 a3 Bd3 h4 Kb3 a2 Ne2 h3 Na3 h2 Nb5 Rh3 Ng3 Qb6 d8N Bd7 Nc6 Qa7 Ne7 Bc6 Nc8 Qd4 Qb1 Kg5 f6 Ra6 f7 Qc5 f8N Nh6 g8B Nf5 g7 Nd6 Bf7 Rg1 g8B Ra7 Ng6 Ra5 Nh4 Rg2 Bd5 Rg1 Bgf7 Rg2 Re1 h1Q Ra8 Qg1 b8N Qf1 Nh1 Qe2 Ra7 Rg4 Rd7 Ra7 Rd8 Re7 Rf8 Bd7 Bb7 Qf5 Nc6 Rgg3 Na5 Bc6 Ng6 Rh5 Nh4 Rg1 Ng3 Rg2 Rh1 Rg1 Rh3 Rf1 Nh1 Rh8 Qb2 Rg8 Re1 a1R Qb1 Ra4 Be6 Rd4 Rf6 Rd5 Bf7 Qe5 Rf4 Qf5 Rff3 Rde5 Rhg3+
3r1N1K/1N3Q1b/2BRrn1r/4R3/b2N2rq/2q3BN/qn1NkPq1/B1R5 b - - 0 1 illegal: No possible last move
n2bqr2/KR1q1Nnn/2b2p1P/4N3/RB6/1R1N2qB/1BrB4/B1Q1b1k1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Kd7 d4 Kd6 h4 c5 e4 g5 b6 c4 b7 f3 Ke3 g4 e5+ Kc7 h6 Kb6 e6 g3 h7 g2 h5 c3 h6 b3 e7 f2 e8R b2 d6 c2 d7 Na6 b8B Bb4 d5 Kc5 d6 Nc7 Nf3 g1Q Na3 b1Q Re7 Qg3 Bb2 Qe8 d8N Nf6 d7 Rf8 h8B Bb7 Qc1 Nh7 Nc4 Be1 Ne5 Bc6 Rh3 Ra2 Nd3+ Kc4 Bg2 Na8 Bd6 Kd5 Bb4 f1N+ Ke2 Ne3 Bhe5 f6 Nf7 Ke4 d8B Qd7 Bda5 Nf5 Bf1 Qe8 Rb7 Ng7 Bd2 Qd7 Bab4 Qe8 Bec3 Qd7 Nf3e5 Qe8 B2a3 Qb3 Bab2 Qbe6 Bd4 Q6d7 Bd4c3 Ra5 Ra4 Rc5 Ba1 Rc4 Bcb2 Rc5 Qb1 c1B Qc2 Qf4 Rf3 Qg3 Bh3 Rc4 Bd4 Ba3 Qc1 Rc2 Bdb2 Nb6 Nf4 Na8 Rb3 Rc5 Nfd3 Rc4 Ba5 Be7 Bab4 Bd8 Kd1 Rd4 Kc2 Rd6 Kc3 Rd4 Ng4 Kf3 Nge5+ Ke2 Nc4 Rf4 Nce5 Rf2 Kc4 Rg2 Kc5 Kf1 Rb6 Kg1 Rb7 Nc7 Kb6 Na8+ Ka7 Rf2 Bf4 Rc2 Bfd2
R2n4/2p1Rr2/3R1Nrn/r1R1qR2/1k4N1/b3QPq1/4KBNB/B1bn3b b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 cxd5 f4 Qc2 f3 exf3 Na6 Qd1 Nb8 Nc3 g5 Nb1 g4 Nc3 h5 Nb1 g3 Ke2 gxf2 g4 Rh6 g5 Rh7 Bh3 Rh8 Bg4 hxg4 d4 Kd7 b4 Kd6 h4 f1N g6 e5 b6 a5 h5 a4 b7 e4 h6 e3 h7 g3 b5 g2 g7 a3 b6 a2 Qe1 Ra6 Nh3 g1R Nc3 Nf6 g8N Ra3 Nf4 Bf5 Ne4+ Kd7 d6 Kc6 d7 Kb5 d5 Rg3 d6 Nh2 Ng2 Nf1 Nh6 Qe7 d8R Ra5 d7 Ng4 Re8 Qe5 d8R Nc6 b8R Ba3 b7 Rf8 h8B Rf7 Rd6 Nd8 Rh5 Kc4 Rb1 a1B Nf6 B1b2 Re7 Be6 Bd2 Bc1 Ra8 Bd7 b8B Bb5 Nhg8 Nh6 Ba7 Rg6 Ng4 Qg3 Ba1 Bd7 N4f6 Bh3 Rf5 Qe5 Ng4 Qg3 Nf4 Bg2 Rbb5 Bh1 Ng2 Qe5 Rc5+ Kb3 Kd3 e2 Bf4 Ne3 Bh2 Nd1 N8f6 Ka4 Qg1 e1Q Qe3 Q1g3 Ke2 Kb4 Rc2 Bd2 B7d4 Bdc1 Rc5 Nf2 Qe4 Nd1 Bf2+ Qd4 Qd3 Qde5+ Qe3
1b1Q2bB/2B1n1r1/3B1b2/1RK1kp2/1B1N3N/1P3b1R/NrB1n1q1/rR3n2 b - - 0 1 illegal: No possible last move
1N1nb3/1q1q2Br/2nN4/NNRnRqBP/1b2r3/B1p3N1/2Q2nkR/2K5 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 Kf7 Kd2 c5 h4 a5 b4 e5 h5 a4 g6+ Kf6 d6 Kg5 d7 e4 b6 c4 b5 f3 g7 Kf4 d5 Kg3 f6 f2 f7 f1N+ Kc2 e3 b7 e2 b6 e1Q d6 c3 Qd2 a3 Ne2+ Kg2 Ng3+ Qf2 Qe2 a2 Na3 Qe8 d8N Bd7 Nb5 Nc6 b8N Nh6 g8R Ra4 b7 Re4 Rg5 Rh7 Ba3 Ne3+ Kc1 Nd5 Qc2 Qe6 Rb1 a1Q Re5 Be8 d7 Bb4 f8B Nf7 Bg7 Qa2 Rb2 Qb3 Rd1 Qf5 Rd4 Qe6 Rc4 Qe7 Rc5 Qa4 Ne6 Nfd8 Ned4 Qa8 Ndf5 Qd6 Ne2 g3 Ra2 Qc7 Nfd6 Qf5 Rb2 Ne6 d8B Qd7 Bg5 Ned8 Na6 Qa7 b8N Qab7 Ra2 Kh3 Rb2 g2 Ng3 g1N Ra2 Re2 Rb2 Kg2 Ra2 Nh3 Rb2 Nd4 Nc6 Nf2 Nab8 Re4 Na5 N4c6 Qd1 Rd4 Rbe2 Re4 Qc2 Qdc7 Re1 Qcc8 Rh1 Qcd7 Rh2+
K1Bkb1R1/Qn3r2/B1R3Bn/N1p1n1b1/2q5/B1R1rN2/q1P4n/1B1N3b b - - 0 1 legal: proof: b4 a5 h4 f5 e4 g5 hxg5 e5 d4 fxe4 dxe5 b6 a4 b5 axb5 axb4 Kd2 d5 Ke3 h5 Kd4 b3 f4 b2 g4 h4 g6 h3 f5 e3 f6 e2 e6 e1N b6 h2 g5 c6 f7+ Ke7 Kc5 d4 b7 d3 g7 d2 g6 Bd7 Ra6 Qc7 Nc3 b1N Ba3 Rh7 Nf3 Qg3 Kb6+ c5 Qe2 Qf2 Nd1 Nc6 b8N Qd4 Kb7 Nh6 g8B Qd5 g7 Ne5+ Rc6 Nc3 Qa6 Kd8 Qa7 Qa2 Ba6 Be7 f8R+ Be8 Rg1 h1B Rg3 Bf6 Bf7 Be7 g8B Nb5 Bg6 Bg5+ B8f7 Rg7 Rg8 Qc4 Nh4 Qa2 Rc3 N1f3 Bf5 Nh2 Nf3 Ke7 B7g6 Rf7 Bg4 Kf6+ e7+ Nd6+ Kb6 Qc4 Bgc8 Qa2 Rc7 Qc4 Nc6 Nb7 Na5 Rb8 Ne3 d1Q Rc6+ Qd6 Nd1 Qde6 Kc7 Bd7 e8B Ke7 Kb6 Qa2 Kc7 Qec4 Kb6 Rf5 Bef7 Be8 Bd5 Rf7 Kc7 Nd8 Bde6 Rb3 Bd5 Nb7 Kb8 Kd8 Ka8 Qa4 Rc4 Re3 Rc3 Qb1 Bb3 Qc4 Ba2 Qbb3 Bb1 Qb2 Bh3 Qba2 Bc8
1R5q/rn1pqB2/2NN4/2N3Pn/1bK4B/N1Rnq3/3k1nR1/1B2nQrN b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kd3 a5 b4 e5 c4 h5 c5 f3 c6 f2 c7 e4+ Kc4 h4 c8N h3 f6 Ke6 b6 Ke5 f7 h2 b5 e3 g6 Kf4 g5 d3 b7 a4 g7 a3 b6 d2 Bh3 f1Q+ Qe2 d1N Bd2 a2 Be1 Nc6 b8N Qe7 b7 Nd8 Bh4 Nf2 Nd6 Ra7 Nc6 Nd3 b8R Qf2 Qf1 e2 Bf5 Ke3 Nh3 e1N Rg1 h1N Rg2 Nf6 g8B Nb7 Na3 Kd2 Rc1 a1Q Rc3 Nh5 Bfh7 Qfe2 Nf2 Q2e3 Be4 Nb4 Bc2 Nbd3 Bb1 Rh7 Rc1 Qh8 Rc3 Bh6 f8N Rf7 Ng6 Bf8 Nge5 Rf3 Bf7 Rg3 Rh2 Rg1 Rg2 Qh6 Ng6 Qh8 Nf4 N1g3 Ne6 Ne4 Nh1+ Nef2 Rb3 Bg7 Nc5 Bc3 Bg8 Ba5 Rc3 Bb4 Bf7
1B4qB/1N2Nb2/B1p5/KBrP2RB/1n2bbQ1/2Nn2n1/3k1b2/bRn3R1 b - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 Kd7 d4 Kd6 Kd2 f5 Kc3 h5 e4 c6 b6 h4 b7 h3 b5 f4 b6 f3 g6 h2 g7 g2 Bb5 f2 Kb3 f1N Ka4 g3 Bd2 Nh6 g8B Nf7 Nf3 g1B Qe2 g2 Bc3 Ne5 Nh4 Be6 Ng6 Nd3 Qg4 Bf7 Ne7 Bf2 Rg1 Na6 b8R h1B b7 Bh6 Ra8 Bf4 b8B+ Qc7 Bb2 Nab4 Nc3 Ng3 Rab1 Rh5 Bh7 Rg5 Bf5 Rh5 Bc8 Re5 Bca6 Rg5 Rge1 g1N Ba1 N1e2 Rg1 Nec1 Bb2 Rf5 e5+ Kd7 d6 Ke6 d7 Qc8 Ba1 Be4 Bb2 Qg8 d8N+ Kd7 Nb7 Ke6 Ra7 Nca2 Kb3 a4+ Kc4 a3 Kb3 Nd5 Ka4 Nac1 Ka5 a2 Ra8 a1B Ra7 N5b4 Ra8 Kd7 e6+ Ke8 Ra7 Rc5 d5 Kf8 Ng6+ Kg7 e7 Kh6 e8B Ne1 Ne7 Ned3 Qd1 Kg5 Qe2 Be6 Bh5 Bf7 Ra8 Be5 Qd1 Kf4 Qg4+ Ke3 Ne2 Bf4 Bh8 Kd2 Nc3 Nb2 Ba7 Qg7 Rg8 N2d3 Bb8 Qh7 Rg6 Qg8 Rg5
3N2r1/Rbr5/1n2KB1b/N1Q1p1B1/2B2Pn1/rRr3RB/N1k4b/2bnB3 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 cxd5 f5 axb5 fxe4 Na3 a4 Nb1 Qd6 Ra3 Qb6 Ra1 Qa5 bxa5 Kd8 Ra2 Kd7 Ra1 Ke8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 c5 d4 h5 d6 h3 d7 h4 d8N e3 d5 e6 g5 c4 b6 e2 g6 e1R+ Ne2 c3 g7 c2 b7 Kb3 d6 h2 a6 h3 d7 a3 a7 a2 Rg1 h1N Qd6 h2 Na3 Nh6 Bh3 Rg8 Bg5 c1B Nc4 Kc2 Rb1 a1B+ Qd4 Rd1 Nc3 Rd3 Na2 Rc3 Rb3 Bab2 f3 Nf2 Qc5 h1R Rg3 Nd1 Na5 Ba3 Kf6 Ng4+ Kf7 Bab2 f4 e5 Ke6 Be3 Bf6 Bg1 Bg5 Bh2 Bf6 Na6 b8B Bc1 Bd6 Bb7 Bde7 Rc8 a8R Nb8 Ra7 Rc7 Bg5 Re1 Bef6 Re3 Bh4 Rh8 g8B Bh6 Ndc6 Rf3 d8B Nd7 Bde7 Rd3 Nd8 Nb6 Bfg5 Re3 Bef6 Rd3 Kf5 Re3 Bc4 Rg8 Ke6 Rf3 Rg1 Rfe3 Be1 Rf3 Rg3 Rfd3 Rb4 Ra3 Rb1 Rdc3 Rb3
BK3N2/N3n3/q2Pk1Bb/1p3R2/1pN2br1/Nn1Nb1Q1/2RBn3/2R3rr b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Kf2 Kf7 Kf3 h5 Ke4 c5 Ke5 b5 d4 h4 a4 h3 a5 c4 a6 h2 d6 e6 a7 c3 d5 c2 f6 f3 g6+ Ke8 g7 Kf7 d7 f2 g5 Qe7 d8N+ Kg6 f7 Rh5 Qe1 Na6 Ra2 Rc8 a8B Rh7 Nc6 Qb7 Ne2 Re8 Na7 Ne7 Kd6 Kf5 g8R e5 g6 e4 g7 e3 Nf4 e2 Nd3 Rh4 Na3 Rg4 Bd2 c1B Rc2 Nc5 Bg2 f1N Qg3 e1B Be4+ Kf6 Bg6 Qa6+ Kc7 Nb3 d6 Bf2 Rh8 Rb8 g8N+ Ke6 Rh5 Bh6 Rf5 Bfe3 Nf6 Rg8 Nd7 Bef4 Rg1 h1R N7e5 Rg7 Kb8 Be3 Qf3 Ng3 Nec4 Ne2 Qg3 Bef4 Be1 Bce3 Bd2 Rgh4 Rgc1 Rg1 Bh7 Rgg4 Bg6 Rhh1 f8N+
1R3BB1/1p3K2/1r3BNq/3Nq2b/2P2n2/3Nr1nk/RrRpBBb1/3Q1q2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 h5 gxh5 e5 f4 e4 Be2 Bd6 Bf1 Be5 fxe5 Ra5 Bc4 Ra3 Bf1 Ra8 Ke2 Ke7 a4 d5 h4 g5 c4 e3 Kf3 d3 Kg4 d2 a5 b3 a6 b2 e6 Kf6 a7 d4 e7 e2 e8B e1Q h6 d3 Kh5 g4 h7 g3 Rh2 g2 Bg6 Qf8 Ne2 g1Q Bf7 Na6 Nf4 Nc5 Nc3 b1R Ra2 Qe5 Be2 Nh6 Bg8 Qf1 Rg2 Rb8 a8R Rb2 Rf2 Ne6 Ncd5+ Kg7 Rh2 Bd7 Rf2 Re8 Rb8 Bc6 Rh2 Rb6 Bb2 Re7 Bd4 Rb2 Bf2 Qff6 Nb4 Bg2 Nfd5 Qf8 Ra4 Re8 Ra2 Nf4+ Kg5 Qfd6 h5 Re7 Bf7 Rc8 h8N Rc6 Ng6 Rb6 Be6 Ng4 Bf7 Nf6 h6+ Kh7 Be6 N6h5 Bf7 Ng3 Be6 Qe3 Kf6 Re8 Kf7 Qde5 Qe1 d1B f6 Bc2 Qd1 d2 Rh3 Bce4 Nd3 Re7+ Kf8 Bef3 f7 Bh5 Rh1 Rc7 Ke8 Rcc6 f8B R6b3 Kf7 Qb6 Nc5 Re3 Nd3 Qa6 Qb3 Rb6 Qc2 Qb1 Rc1 Qa1 Qb3 Qb1 Rc3 Qf1 Rc2 Qc1 Ke8 Bh3 Rc3 Qf1 Qd1 Bg2 Rc2 R6b5 Ke7 R5b4 Nh4 R4b3 Nf5 Kg6 h7 Kg5 h8B Qc6 Nh4 Rb6 Bhg7 Qe4 Be5 Qf5 Bf7 Qh6 Ng6 Qe4 Bg8 Qf5 Nh8 Kh4 Ng6+ Kh3 Ke8 Qe4 Kf7 Qd4 Beg7 Qe5 Bf6
3N1N2/K2B1bQ1/2R3pR/1P1r3b/R2B1b2/2pnN1b1/2r1k1Nn/qN3Bb1 b - - 0 1 illegal: No possible last move
1n1Q2RB/qBPR3p/b1k2N1N/1n1r4/1rNp4/4N2K/4nBr1/b2NR1r1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 g4 d5 f4 Kd7 Kf2 e5 Kg2 e4 c4 d3 f6 b3 f7 b2 f5 d2 g6 e3 g5 e2 b6 e1N+ Kh3 Bh6 f8R Nf3 c5 Kc6 g7 Na6 g6 Bb7 f6 Bf4 f7 Nh6 g8N Kd7 c6+ Kd6 g7 Ne5 c7 Nf5 Ne2 Ra7 Nec3 Nh6 Nf6 Bc6 g8N Qa8 b7 Nf5 b8B Nc4 Na3 b1R Nc2 Na3 Ne3 Bb7 Nh6 Kc6 Bb2 Nb5 Rg8 Ng3 f8N Be5 N8d7 Ne2 Nb6 Rc1 Ra3 Rb1 Ba1 Rb4 Nbc4 Bd4 Bg2 Be5 Re1 Bd4 Rg5 Rd8 Rg8 Rd7 Ra5 Rg7 Be4 Rg1 Bf5 Be5 Bc8 Rg2 Qc2 d1R Qd3 Rd2 Ncd1 Rg1 Bb2 Rc2 Ba3 Ba1 Bb2 Rd2 Qd4 Rd3 Qh4 Rd4 Ra3 Rdg4 Rd3 R4g2 Bg4 Bc8 Bc3 Rb7 Ba7 Nb8 Bcd4 Rb6 Bb2 Bb7 Bc8 Ba6 Be5 Rb7 Bad4 Ra7 Bg3 Rb7 Bf2 Qa7 Ne8 Nbc3 Qd8 R7b5 Bh8 Ra5 Nf6 Rc5 Rd4 Nb5 Re4 d4 Re7 Rf5 Rd7 Rd5 Bb7+
3R1qbq/1bn4B/2Q1Nk2/RB4RB/2KPp3/1Npr1n2/3B2b1/n2B1Nb1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 h4 g5 hxg5 b5 a4 Qd6 axb5 Qd8 Na3 a5 Qc2 e5 Qb3 e4 Nb1 Ra7 Qd1 Rb7 Nf3 Rb6 Ng1 Re6 Na3 Re7 Nb1 Re5 fxe5 Bg4 Rh6 Bf3 Rh1 Bxe2 b4 Ke7 d4 f5 Kd2 h5 Kc3 c5 g4 f4 e6 f3 g6 f2 g7 h4 b6 a4 g5 a3 b5 a2 g6 h3 b7 h2 b6 Bh5 Qc2 Nc6 b8R Nf6 g8B Ne5 g7 Nf3 b7 Bf7 Nh3 Ne8 Rg1 h1B Ng5 Bg2 Nd2 Kf6 e7 Rh3 Ne6 Nc7 e8B Bd6 Bh7 Bg8 Bh5 Qf8 Rd8 Bh2 b8N Rg3 Be2 f1B Bd1 Be2 Nf1 Rh3 Rh1 Bg1 Nc6 Rg3 Na5 Rh3 Rb1 a1N Rb5 Bd3 Nb3 Be2 Kb2 c3+ Ka2 c4 Ra5 Rg3 Bd2 Bd3 Qc1 c2 Rh4 Be2 Rg4 c3 Rgg5 Ba6 Qb1 Bf7 g8B c1Q Qd3 Bb7 Qa6 Rh3 Qd6 Qc2+ Ka3 Qd3 Kb4 Qa6 Qc5 Qa8 Kc4 Qb8 Qc6 Qc8 B7g6 Qa8 B8h7 Qh8 Rdd5 Qaf8 Rd8 Bg8 Bf7 Ne1 Be8 Rd3 Qa6 Nf3 Bb5 Qhg7 Qb6 Qh8 Qc6
3K1nn1/2N3Nq/6B1/2B2rP1/bkNn1R1b/1B1p4/3NQ1p1/Rb2RbNq b - - 0 1 legal: proof: e4 c5 h4 b5 d4 cxd4 a4 f5 exf5 Kf7 axb5 Ke8 Be3 g5 Be2 a5 Bc4 g4 Bf1 Ra7 Bc1 Rb7 Be2 Rb6 Bc4 Rg6 Bf1 Rg5 hxg5 Bb7 Ra4 Bf3 Ra1 Bxg2 Kd2 d5 Kd3 Kd7 f4 Kd6 b4 e5 c4 h5 c5+ Kc7 b6+ Kc6 b7 Kb5 f6 a4 c6 a3 f5 g3 c7 a2 c8B h4 f7 h3 f6 h2 Bf5 Qc7 Ba3 Bc5 f8N Nd7 Ne6 Nf8 b8N Qh7 f7 Ba7 Be2 Bf1 Bg6 Bb6 Ng7 e4+ Kd2+ d3 Kc3 e3 Nd7 Bc5 Nb6 d4+ Kb3 Bd6 Nc4 d2 Qc2 d1B Nbd2 d3 Kc3 Bc7 Kd4 Ba5 Bg4 e2 Ke5 e1N Kd6 Nf3 Be6 Nd4 Qb2 Ka4 b5 Bc2 b6 Bb1 Kc7 Bc3 b7 Bb4 Nb3 Be1 b8N Kb5 Qe2 Ka4 Bb2 Kb4 Kd8 Bf2 Nbd2 Be1 Ngf3 Bf2 Rg1 h1B Bd5 Bhg2 Rh1 Bh3 Ng1 g2 Be6 Bh4 Na6+ Ka4 Bd5 Bd7 Nc7 Kb4 Bc1 Ba4 Bb2 Bbc2 Re1 a1Q Ba3+ Kc3 Bc5 Qd1 Bb6 Bb1 Ba7 Kb4 Be6 Nd7 f8R Qc1 Rf4 Nf8 Nb3 Qe3 Nbd2 Qh3 Nb2 Qh2 Bb3 Qh3 Nbc4 Qh2 Ngf3 Qh3 Rg1 Qh1 Bc5+ Kc3 Nf5 Bc2 Kc8 Nh6 Na6 Nfe6+ Be8 Rf8 Nc7 Ng8 Ng7 Rf5 Ra1 Bb1 Bg6 Nf8 Qe5 Be2 Re1 Bf1 Kd8 Nf6 Ng1 Ng8 Ba7 Kb4 Qe2 Re5 Bb6 Rf5 Bc5+
QnR5/2b3k1/P1rR4/1B1BRBN1/1r2B2r/p1rpK3/N1bN2r1/2nB1b2 b - - 0 1 illegal: No proof kernel
4Nn1r/rB1RbP1b/3p4/1rR1N1R1/1r1R4/4R2B/k2bK1pB/nN1Qn3 b - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 b5 e4 f5 exf5 c5 axb5 cxd4 Ba3 a4 Bc1 Qa5 bxa5 Rh6 Na3 Rh7 Nb1 Rh8 h4 Kf7 c4 g5 f4 e5 c5 a3 f6 Ke6 a6 Kd5 c6 d6 a7 a2 f7 d3 f5 Kc4 b6 e4 b7 g3 c7 g2 h5 e3 h6 g4 h7 g3 f6 e2 Rh3 Nc6 b8N Nge7 Bf4 Ne5 Nd7 N7g6 Nf3 Be7 f8R g1R Rg8 Nf8 f7 Rb8 a8B Rb4 Nf6 Bf5 Kd2 e1B+ Ke3 Rg2 Bb7 Rgb2 Rg5 R2b3 Bg2 d2+ Ke2 Nd3 Ne8 Ra3 Rh4 Ra7 Bh3 g2 Bh2+ Be4 Rhg4 Rb5 c8R+ Kb4 Rc2 Kb3 Ne5 Bf5 Qc1 d1R Rc5 Bd2 Rd4 Rf1 Qe1 Rf4 Qd1+ Kb2 Rc7 Ne1 Rc5 Rg8 h8R Bh7 Rd3 Rfb4 Re3 Be4 Rhh5 Rh8 Rh4 Bg6 Rd4 Bh7 Nc3 Ka3 Rc1 a1N Nb1+ Ka2 Rc7 Bf6 R1c5 Be7 Rd7
4b1bK/1bB1R1NP/1N1pN3/b3Q3/R1N3r1/nkBBpR2/2q2rr1/3Nr3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 d4 cxd4 exf5 Bb7 Nf3 Ba6 Ng1 Bc8 g4 gxh4 Be3 h5 Bd2 h3 Bc1 h4 Bh6 Nc6 Ra2 Ne5 Ra1 Ng6 Be3 Nf4 Bc1 Nh5 gxh5 Qa5+ Nc3 Qb6 Nb1 Qd8 Kd2 Kf7 Kd3 e5 Ke4 a5 c4 a4 f4 d3 b4 h2 h6 d6 b6 a3 b5 h3 b7 a2 b8B d2 h7 Ra4 b6 Bg7 f6 Ke6 f7 Ra5 f8N+ Kf7 c5 Ke7 b7 Qc7 f5 Be6 c6 Nh6 Qh5 d1R Na3 Ng4 Nc4 Re1+ Ne2 Bg8 Bb2 Ra4 Bc3 Ne3 Ne6 Nc2 Rg1 Bf6 Rg3 h1B+ Rf3 h2 Ng7 Na3 Qg5 Qc8 c7 Kd7 Qh5 Bd8 f6 Kc6 f7 Kc5 f8N Bg2 Qg5 h1B Nfe6+ Kb5 Kf5 e4 Qf4 e3 Kg6 Rb4 Qf5+ Ka4 Qe5 Kb3 Kh6 Qd7 c8N Ba5 Kg6 Qc6 Bc7 Qe4+ Kf6 Qc2 b8R Bh3 Rb6 Bf5 Rb5 Bg6 Rb7 Be8 N8b6 Bg2 N2f4 Re2 Nd3 Rf2 Ndb2 Ra4 Nd1 Rb4 Ncb2 Rg4 Bd3 Bh1 N2c4 Bg2 Bb8 Bh1 Re7 Rfg2 Rc1 a1R Bc7 Rf2 Rf4 Bb7 Rf3 Qe2 Rc2 Rgg2 Ra2 Qc2 Ndb2 Re1 Nd1 Nb5 Ra4 Na3 Nf8 Bgd5 Nfe6 Rg8 Nf5 R8g4 Nfg7 Bd7 Kf7 Bb5 Kg8 Be8 Ncb2 Bc4 Kh8 Bcd5 Nf8 Be6 N2c4 Bg8 Nfe6
Rn1nn1B1/3Qbn1P/3k2N1/2R2KR1/1pr5/R1b2NpB/4R1n1/1nBr2N1 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 h3 g5 Bb2 h5 Ba3 Qd6 Bc1 Qg6 Bg2 h4 Bf1 Qh5 gxh5 g4 Qb3 g3 Qd1 Bg4 hxg4 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 Ke2 b5 Kf3 c5 d4 f5 a4 b3 g5 h3 e5 h2 h6 b4 d6 c4 g6 b2 g7 c3 h7 c2 d5 Be7 a5 Nh6 g8B Nf7 a6 Nd8 Na3 b1N Bh3 Ra7 Ra2 Rc7 a7 Rc4 Be3 c1B a8R Bd2 Nb5 Bc3 R2a3 Be1 Bc1 Bc3 Bf7 Rg8 Nd4 Rg6 Bg8 Rh6 Ke2 f3+ Ke3 f2 Kf4 f1N Qd3 Nfd2 e6+ Kc8 d7+ Kc7 Ke5 f4 Kf5 Ne4 Ndf3 Ng5 d6+ Kc6 Qd4 Ngf7 R8a5 Rh4 Qg7 Rd4 Re5 Rd1 Re2 Nb7 d8R Kd5 d7 Kd6 Rc8 Nbd8 Rc5 Rg4 Nh4 f3 Ng6 f2 Rc4 f1N Rc5 Bg5 e7 Rc4 e8R Be7 Rf8 Nfd2 Re8 Nf3 Rf8 Ne1 Re8 Nb7 d8N Ng2 Ne6 Nbd8 Nd4 Ne6 Ngf3 Ned8 Rf1 h1N Ng1 Nf2 Ndf3 Ng4 Rff2 Ne6 Ree5 Nf6 Rfe2 Nc6 Rea8 Ne8 R5e4 Nb8 Rg4 Ned8 Rg5 Bd2 Qc3 Be1 Qb3 Bd2 Qa4 Bc3 Qd7+
2rB2K1/1k1n2N1/2rn3P/RBB1Nb2/p2pn2Q/RN1rb2N/8/R3n1rN b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 g4 h5 Qd3 h4 Qe2 Qb6 Qd1 Qg6 h3 Qh5 gxh5 g4 Bd3 gxh3 Be2 Bb7 Bf1 Bc8 Ke2 Kd8 Kf3 Kc7 Kg4 a5 Kg5 d5 Kg6 e5 Kf7 d3 f4 e4 b4 e3 c4 h2 f6 d2 f5 d4 c5 a4 c6 h3 h6 e2 b6+ Kd8 b5 e1N b7 Kc7 b6+ Kd6 c7 Kc6 Bb5+ Kd6 Ra3 Ra5 Qg4 d1R Qh4 Na6 b8R Ng2 b7 Ne1 Bg5 Ne7 Ra8 Nc6 b8N Bd7 c8N+ Kc7 Ne7 Na7 Nd2 Nc5 Nbc6 Kb7 Ne5 Nc8 Nb3 Rd3 Ra6 Bg7 Ra8 Re8 Ra6 Bf8 Kg8 Nd6 f7 Rc8 f6 Bf5 Ra8 Bg7+ f8N Nd7 f7 Bf6 Ra6 Rc6 Ne6 Rc8+ f8B Rc6 Bd2 Bg5 Ng7 Be3 Ra8 Raa6 Ba5 Rc8 Bd8 Rac6 Ra5 Bc1 Ne2 Be3 Rf1 h1R Ng1 h2 Nh3 Bg6 Nef5 Rg1 Bfe7 h1N Ng3 Nf2 Nh1 Bf5 Bf8 Nfe4 Bfe7 Ng2 Rfa1 Ne1 Bf8 Ne8 Bb4 N8d6 Bc5
RNnQrnRk/1B2p2B/R4rpK/N1r3rP/4N3/1b1Rbn2/3n4/B5R1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 b4 h5 g4 hxg4 Qa4 a5 Qc2 a4 Qd1 Qd6 Ke2 Qb6 Ke1 Qa5 bxa5 Ra6 Bb2 Ra7 Bc1 Ra8 Ke2 Kf7 Ke3 c5 Kf4 a3 Kg5 a2 h4 c4 f4 c3 d4 g3 f5 c2 b6 g2 a6 e3 a7 e2 b7 e1N d6 Be6 d5 Na6 b8N Bc8 d7 Nb4 d8R Nh6 f6 Kg8 h5 Ba6 d6 Kh7 f7 Bc4 d7 Nc6 Ne2 g1R+ Ng3 Nd4 Bd3+ Nhf5 Bb2 c1R Na3 Bb3 Nc4 Rf1 Bc3 Rg8 Rg1 Kh8 Na5 Nd6 Bh7 Nc8 Ne4 Rf6 Re8 g6 d8R Bg7 f8R Bh6+ Kg4 Bg5 Rf7 Nef3 Rg7 Ne6 Rd3 Be3 Red8 Rc2 R8d6 Re8 Ra6 Nf8 Qd2 Bb6 Bb2 Rc5 Bc3 Ne5+ Kg5 Nf3+ Kh6 Rg5 Rac1 Be3 Ba1 Rd8 Rc4 Rdd5 Ra4 Rde5 Nbc6 Rb8 a8B Rc5 Bb7 Ra8 Be5 a1N Nb8 Nc2 Ba1 Na3 Qb2 Nb1 Qd4 Nbd2 Qd8 Rf7 Ra2 Rf6 Nbc6 Ne1 Qd7 Bd4 Ra7 Bf7 Nc4 Nef3 R2a6 Nd6 N4a5 Re8 Ra8 Nc8 Nb8 Be3 Qd8 Bb3 Rg8+
2N2rnB/1KNB2Nk/1np1nr1P/4N2R/6Q1/bp3NbR/5p1B/2q3bR b - - 0 1 legal: proof: b4 a5 g4 h5 a4 hxg4 f4 b5 c4 e5 fxe5 d5 cxd5 Bd7 Qb3 axb4 Qd1 b3 Na3 b4 Nb1 Bb5 axb5 Ra4 Nc3 Ra7 Nb1 Ra8 Kf2 f5 Ke3 Kf7 Kd4 Kg6 h4 b2 e4 f4 d6 c6 Kc5 b3 d4 g3 d5 f3 b6 f2 e6 g2 e7 Nf6 e8N Qc8 b7 Rg8 Kb6 Ra2 h5+ Kh7 h6 g5 e5 g4 e6 g3 e7 Ne4 d7 Nd6 d8N Kh8 Nc7 Rg6 e8N Qh3 Nd2 b1N Bb2+ Rf6 Ngf3 g1B Nc4 g2 Nf7+ Kh7 N7e5 Bh2 Ng7 Ra8 Ra5 Nf7 d6 g1B d7 Bg3 d8R Na3 Rd3 Nd8 Nd6 Ne6 Nc8 Be7 Be2 Qf1 Ba1 Qe1 Bf1 Qc3 Bh3 Qc1 Rc3 Bd6 Qd4 Be7 Qg4 Bb4 Nf7 Be7 Rh5 Bf8 N7e5 Bd6 Na7 Nd7+ Ka6 Bc5 b8B Nc4 Kb7 Ncb6 Nc8 Ba3 Nc4 Bf4 Ng5+ Kg8 Nb5 Nd4 Qe6+ Kh8 Ne8 Bfd6 Nca7 Rf5 Qe4 Be7 Bh2 Beb4 Nbc7 Bd6 Rf3 Rd8 Nc8 Nf6 Rd3 Rf4 Bd7 Ng8 Rdh3 Rf5 Qe6 Bg3 Nf3 Kh7 Bb2 Rf7 Qg4 Ne6 Bh8 Rf6 Ng7 Rdf8 Nce5
B3N1Qr/1R2pRK1/q7/1b3rR1/Nr1R1n1N/1p2BP2/2B3p1/b1q1kR1n b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 h4 b5 a4 b3 h6 g4 d6 d3 d7 b2 h7 d2 a5 b4 h5 Kg5 f6 b3 f7 g3 h6 g2 a6 Qb6 d8R Bg7 f8R Ra7 Ra5+ Qc5 Nc3 b1Q+ Bd3 Bd7 Rf7 Rb7 a7 Qa2 a8B Qb5 Bc2 Rb6 Na4 Rf6 Nf3+ Kg4 Rf1 Rf5 Nh4+ Kh3 f3 Kg3 Rf2 Qf1 Qe1 d1R Be3 Bb5 Rd4 Nc6 Ra7 Be5 Rb7 Nd8 Qb4 Ne6 Qc4 Nf4 Qc8 Rg5 Qe6 Rg4 Kf5 Nf6 Qc8 Ne4 Qg8 Nh3 Ke6 Bg7 Kf5 Rf4+ Kg6 Rf5 Rd3 Ba1 Rd4 Nf4+ Kg7 Qb2 Qe8 Rf8 h8R Qc1 h7 Qe2 Rg8 Rd2 Rf1 Nf2 h8N Nh1 Rf2 Rd3 Rf6 Rc3 Nf7 Rc4 Nd6 Rb4 Rf7 Qc4 Qd8 Qc8 Ne8 Qc6 Rh8 Qa6 Rh5 Rh8 Qd5 Kh2 Rg5 Kg1 Rd2+ Kf1 Rf2+ Ke1 Qe6 Qd2 Qg6 Qc3 Qh7 Qd2 Qg8 Qc1 Rf1+
1B2rR1q/p2B1q2/1RK5/1R2PB1N/B1n3qb/3Bb1N1/2pnp1N1/4Qbk1 b - - 0 1 legal: proof: b4 c5 a4 e5 c4 b5 h4 bxa4 d4 g5 dxe5 Bh6 hxg5 Bg7 b5 Na6 b6 Bf8 Bd2 Rb8 Rh5 Rb7 Qc2 Rc7 Qd3 Rc6 Qd5 Rf6 Bc1 Rf3 Rh1 Rb3 Qd1 Rb5 cxb5 f5 e4 Kf7 e6+ Ke7 e5 Ke8 Qd5 Bh6 Qc4 Bf8 Qe4 fxe4 Ke2 Ke7 Ke3 h5 g4 d5 f4 h4 g6 h3 g7 h2 g5 a3 b7 a2 b8Q c4 Kd4 c3 g6 c2 b6 e3 b7 Qe8 f5 Qf7 f6+ Kd8 e7+ Kd7 e8B+ Ke6 Nf3 Kf5 Nbd2 Kg4 Ba3 Kg3 Nh4 Kf2 Ba4 Bb4 Rb1 Rh5 Bd3 Ne7 g8B Rh8 g7 Nc5 Bgh7 Ne4 g8B Bh3 Ng2 Nc8 Bf5 Nb6 Nf1 Be1 Rb5 Nc4 Ng3 Ned2 Kc5 a1B Kc6 d4 Bd6 e2 Bgh7 Re8 Bd7 Bb2 Bhf5 Bc1 Rg1 h1Q Qd8 Qh2 b8N Qh1 Qa5 Qh2 Nh4 Bf1 Ng2 Qhh7 Rh1 Qh8 Rh6 Kg1 Qb4 Bf2 Qb1 Be3 Bc7 Ba3 Qe1 Be7 Bd6 Qh5 f7 Bh4 f8R Qg4 Bde4 d3 Re6 Nb1 Rh6 d2 Bd3 d1Q Bde4 Kh2 Kc7 Nba3 Bdc6 Na5 Nd7 Qb1 Bd3 Qa2 Nf6 Qf7+ Bcd7 Kg1 Nfh5 Nb3 Kb7 Nd2 Bb8 Nac4 Rhb6 Rd8 Kc7 Re8 Kc6
Q2B2K1/P2R2Rr/k1B2qb1/qp1pnR2/4Rp2/1rn4N/1NBp4/N3Rq2 b - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 d4 b6 g4 c5 gxh5 cxd4 b4 Bd6 c5 Bc7 Bg2 b5 Bf1 Bb6 cxb6 axb4 Kf2 g5 Kf3 d5 a4 Kd7 Kg4 Kc6+ e6 Kb7 Kf5 f6 Kg6 g4 Kf7 g3 e4 g2 h4 b3 h6 f5 h5 d3 e5 b2 h7 Nf6 a5 Bd7 e7 Nc6 e8R Qc8 e6 Qc7 h6 Ra7 e7 Nh5 Nd2 b1Q Nc4 Qb3 Nh3 g1Q Nb2 Qd6 Bg5 d2 Bd3 f4 Bc2 Qgg3 Re1 Ka6 b7 Bg4 b8N+ Kb7 a6+ Kb6 Nd7+ Kc7 Nc5 Qa4 Nb3 Rg8 h8R Kb6 h7 Rg6 Rhg8 Qf2 h8R Qg1 Rg7 Qf6+ Kg8 Ng3 Rh5 Ne2 Bh4 Qa3 Rf5 Nc3 Re4 Qa5 Rd8 Qf2 e8B Bh5 Rd7 Qf1 Qe1 Rb7 a7 Rg3 Rb1 Ka6 Na1 Rd3 Qe2 Rc7 Re1 Bg6 Qh5 Ne5 Qh8 Qd6 Bd8 Qf6 Rde7 Rf3 Bc6 Re3 Ng1 Rh3 Rd7 Rh7 Nh3 Rc8 Ba8 Rc4 Bc6 Rb4 Rd4 Rb3 Ra4 Qh4 Rae4 Qf6 Bb6 Rh4 Qh5 Be8 Qg6 Rh7 Qg5 Qd6 Qd8 Qf6 Qa8 Bg6 Bd8
3KB1R1/1N3r2/krB2BpP/1q3qBp/3Rn2N/1b4p1/1BQrpq2/6RN b - - 0 1 illegal: No proof kernel
1n6/R3p3/1qnkP1N1/1pnB1p1p/NnrN1B2/2Q1NR2/1R1qB1K1/N5b1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 gxf4 b4 a5 a4 axb4 g4 b5 a5 Ra7 g5 Ra6 h3 Bg4 hxg4 Rb6 axb6 Bg7 Bb2 Bh6 Bc1 Bf8 Kf2 Kd7 d4 c5 e4 f5 b7 h5 e5 c4 g6 c3 g7 f3 g5 b3 g6 c2 d6 b2 d5 Rh7 Nd2 b1Q Rh2 Qb4 Nh3 Rh6 Be2 Nc6 b8N+ Ke8 Na6 Kd7 Nc5+ Ke8 Ra7 Qa3 Ndb3 Qb8 d7+ Kd8 Qd3 Qb6 Na1 Nb4 Nf4 Qa2 Qc3 Nf6 g8B Rh8 g7 Nc6 Ng6 Qb2 Kg1 f2+ Kg2 f1N Bf4 c1N Na4 Nb3 Bf7 Qd2 g8N Bg7 Nh6 Rf8 Ng4 Nc5 Ne3 Rh8 Rh3 Bh6 Rf3 Bg5 Ra5 Kc7 d8R Nfd7 Rg8 Ndb8 d6+ Kd7 Bd5 Bf6 Rg7 Rc8 Ra6 Bh4 Ra7+ Rc7 Rg8 Bf2 Rc8 Bg1 Rg8 Nh2 Rg7 Ng4 e6+ Kd8 d7 Nge5 Rb7 Nb4 Ra7 Rb7 Rg8+ Kc7 d8N Kd6 Nc6 Rc7 Nd4 Nca6 Nh8 Rc4 Rg4 Nc5 Ng6 Qa2 Rh4 Qd2 Rh1 Bh2 Rb1 Bg1 Bh6 Nec6 Rb2 Qd8 Bg5 Qb6 Bf4+
Q1bBR3/bN3Rq1/rn1N1n2/qR3N2/nR1P3K/bn6/1krRr2B/6nB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 Ke5 e4 Kd4 b6 h5 d3 f5 b7 c5 g5 a5 b5 h3 b6 h2 e5 f3 Kg3 c4 g6 f4+ Kf2 h4 d6 c3 d7 a4 e6 a3 e7 a2 e8R c2 g7 h3 Qe2 Na6 b8N Nc5 b7 Qa5 d8B Nf6 g8R Na4 Na6 Ba3 Nb4 Ra6 Nd2 Kc3 Rb1 a1N b8R Nb3 Qd1 Rh4 Ke1 f2+ Ke2 Rh8 Bg2 f1N Kf3 Ng3 Rb5 Ne2 Nc6 Rh7 Ref8 Re7 Rf7 Re4 Kf2 f3 Nc4 Re8 Bf4 c1B Nd6 Be3+ Ke1 Ba7 d4 Re6 Re8 f2+ Kf1 Re7 Nf3 Ng1 Nh4 Re2 Nhf5 Rc2 Qh5 Re2 Rd1 Kb2 Qh8 Rc2 Qh6 Ka2 Rg7 Nf3 Be5 Nbc5 Be7 Nb6 Nd8 Nca4 Rd2 Ka1 Rg1 h1R Rf7 h2 Qf4 Ka2 Qe4 Ka1 Ke2+ Ka2 Rgb1 Re1+ Kd3 h1Q Bh2 Qg1 R1b4 Re2 Qa8 Ka1 Bh1 Qg7 N8b7 Ng1 Bd8 Rc1 Rc2 f1N Rcb2 Nd2 Rc2 Rg2 Ke3 Nb3 Rd2 Rc2 Kf4 Kb1 Ree5 Re2 Re8 Qh8 Kg3 Qg7+ Kh4 Ka2 Re3 Kb2 Re8
r1n3NN/nB3nK1/1nbN4/2RBr1bB/1RR5/n1B2nq1/1B2P2Q/2r2n1k b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 Kf5 h5 c4 h4 g4 h3 b4 h2 b6 d3 b5 f3 g6 f2 g5 d2 b7 a4 b6 a3 g7 a2 g6 Rh5+ Kg4 Ke5 c5 d5+ Kg3 f5 c6 d4 c7 d3 Qb3 d1R Nh3 f4+ Kf3 d2 Qb4 Nd7 Kg4 f3 b8B Ne7 g8B Bb7 c8B+ Qc7 g7 Bc6 b7 Nb6 Rg1 h1N Bf7 Ng3 g8N Bh6 Nf4 Ngf5 Nc3 Nd6 Bb2 Rc1 Bg2 d1N Nb5+ Nc3 Qc5+ Ke4 Bce6 f1N Ng6 Re5 Nh8 Nec8 Qf2 Bg5 Kh5 Kf4 Kg6 Nd2 Bd5 Kg4 Be8 Nf7 Nd6 Nb5 Kg7 Nba7 Rh1 Kf4 Rh5 Kg4 Rb1 a1N Bc3 Nc2 Rb4+ Re4 Rc4 Na3 Nf5 Qh2 Bbe5 Qg3 Bed4 Re5 b8R Kf4 Nd6 Kg4 Qe3 f2 Bh1 f1N Qf2 Nd7 Rbb4 Ndb6 Bb2 Nf3 Bdc3+ Bf4 Rf5 Kh3+ Rg5 Nh6 Bh5 Nf7 Rg4 Be3 Rc5 Bg5 Bg2+ Kh2 Rgc4 Ne7 Bh3+ Kh1 Bc8 Ra1 Ba6 Nec8 Bb7 Rc1 Qh2+
2nRB3/NNbR3q/n6R/r2r2rR/Rbnk1q2/1r4Q1/1PqN3B/Bb5K b - - 0 1 illegal: Other
3n1rb1/Bq2bk2/4rn2/R1r3rn/RB1NB1NP/2b5/BQr1B1N1/1r3RK1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 e4 g5 b4 d5 c4 f5 h4 f3 c5 g4 h6 d3 c6 d4 e5 f4 h7 a4 c7 a3 b6 a2 b5 d2 e6 d3 b7 Nc6 b8N Be7 b6 Ra5 b7 Qd7 Qb3 d1R Bg2 d2 Qb2 Nd8 Na3 Nf6 Nh3 Rf8 h8R Rc5 Rh5 Re1 Nc4 d1R Rf1 g3+ Kg1 Rd2 Ne5 Rdc2 Nbc6 Ree2 Bh1 g2 b8B Ba6 c8B Bc4 Rg5 Qb7 Bd2 Bb3 Ba7 f2+ Kh2 g1R Nd4 f3 Bb4 Re4 Nf4 Bd5 Rh5 Rg5 Ng4 Ree5 Ng2 Re1 Rd1 a1B Rd3 Ree5 Ra3 Ba2 Ra4 Bc4 Rc1 f1N+ Kg1 Ng3 Rf1 f2+ Kh2 Bd6 e7 Bg8 Be6 Ree2 Bd5 Re6 Ba2 Kf7 e8B+ Kg7 Ba5 Be7 Bb5 Kg6 Bb4 Kf7 Rb1 f1R Be2 Rg7 Rg5 Ngh5 Re5 Rg1 Rf1 Rg5 Rd5 Rc7 Rda5 R7c5 Rf3 Rb1 Rf1 Qb5 Kg1 Qb7 Qb3 Bc3 Qb2 Be1 N2e3 Bd2 Be4 Bc3 Ng2
2K4B/3n1NnR/rb1BQ1q1/1B2nP2/2nnB3/1k1n3b/R3N1n1/q1RNB1r1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 b4 c5 d4 a5 g4 e3 f4 e4 b6 a4 Kb5 h3 b7 c4 g5 h2 g6 e2 g7 e1N Bd2 e3 Qe2 c3 Nf3 h4 Qd3 a3 Ng1 c2 Nc3 c1N Nd1 a2 Nb2 e2 Qe3 h3 Nd1 Nf3 Be1 Nf6 g8B Nfd7 Bh7 Qg5 Be4 Nb3 Rc1 Nc6 b8R Ra6 Ra8 Nba5 Qb3 a1Q f5 Rg8 Qe3 Nce5 Ra7 Nac4 Qb3 Rc6 Ra2 Ra6 Qe3 Qg6 Qb3 Ke7 d6+ Kf6 d5 Bb7 Qe3 Be7 Qb6 Bd8 Qe3 Bb6 Qh6 Nb8 d7 Ba8 d8N Nbd7 d6 Bd5 Bg3 e1N Ne2 Ng2 Be1 Ba8 Nf7 Bb7 Rg1 h1N Qe3 Nf2 Rh1 h2 Qh6 Nc5 d7 Nfd3 Qe3 Ke7 d8B+ Kd7 Bc7 Ke7 Bb8 Ncd7 Bd6+ Kf6 Bf8 Bd5 Bg7+ Ke7 Bh8 Rg7 Rg1 h1N Qh6 Ng3 Rh1 Rg8 Qe3 Nh5 Rh4 Ng7 Rh7 Ra3 Qh6 Rc3 Ka6 Nd4 b5 Bc6 Ng5 Kd6 Nf7+ Kc5 Qe3 Kb4 Qh6 Bd8 b6 Kb3 b7 Bb6 b8B Bb5+ Kb7 Rc2 Ra7 Ra2 Bd6 Ra6 Ra8 Qg5 Qe6 Qg6 Rf8 Bc6+ Kc8 Bb5 Bb7 Bc6 Ba8 Bf3 Be4 Bg4 Rd8 Nf8 Rd7 Bh3 Ra7 Nfd7+ Kb7 Nb4 Ne3 Qh5 Nd1 Ra4 Qe8 Nh4 Bg3 Na3 Rc4 Nge6 Be1 Rg1 Rc1 Ng7 Kc8 Ng2 Nec3 Qg6 Bb5 Nac4 Ne2 Nbd3 Qe6 Rb4 Ra2 Ra4 Nh6 Ra6 Nf7
2Q3RK/N1n3RN/bb1b1B1n/Bq1N4/4Rb2/bB3n1r/r2BkP2/3qBb2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 g4+ Kf4 b4 c5+ Kc3 h5 d4+ e3 g5 e5 d6 a5 g6 a4 b6 e4 b7 a3 d7 a2 g7 c4 d5 h3 Kd4 c3 d6 h2 b5 c2 b6 h4 Nf3 h3 Bc4 Na6 b8N Qg5 d8B Nh6 g8R Qb5 b7 Nc7 d7 Ba3 Rhg1 h1B Ng5 h2 Nc6 Bg2 b8B h1Q Nh7 Ba6 Bf6 Bf1 Bd2 c1B Qc2 Kf3 d8B e2 Nc3 e1N Na7 e3 Nd5 e2 R1g7 Qh5 Bb4 Bf4 Bb3 Bd6 Rb1 a1B+ Bc3 B1b2 Qf5+ Bf4 Qc8 Bad6 Ra1 Qh1 Ra4 Bba3 Rb4 Nd3 Bd2 e1B Bde7 Ke2 Ra4 Ne8 Bc7 Ne5 Bca5 Nc7 Bf8 Nf3+ Ke4 Ng4 Kf5 Nh6+ Kg6 Qg1+ Bg5 Qg4 Be7 Qg1 Bf6 Qh1 Bdc3 Bed2 Rb4 Bde3 Be1 Bb6 Rd4 Bh2 Bgd2 Bhf4 Rb4 Nf7 Ng5 Rh3 Rc4 Nh6 Kh7 Qg1 Kh8 Qg4 Nh7 Qh5 Ne3 Qhd5 Re4 Qd4 Bc1 Qd1 Bcd2 Bac5 Nc6 Bb7 Bab4 Ra2 Ba5 Ba6 Na7 Ba3 Nd5+
4NB1K/rqr1R1N1/2q1n1r1/1RQ1b1BB/3q1N2/4q2r/2B1rP1B/nRkb4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 b4 e5+ Kc3 h5 d4 c5 d6 a5 d7 h3 d5 e3 g4+ Ke4 g5 a4 d6 h2 g6 c4 b6 e2 b7 e1Q+ Qd2 h4 g7 h3 b5 a3 b6 a2 Bb2 Ra6 Be2 Ne7 g8B Nbc6 b8B Nb4 b7 Nf5 Na3 Bg7 Bg4 Nd4 Rc1 a1R Nb5 Nbc2 Rb1 Ne6 Ba3 Rc6 Bb4 Ra7 Ne2 Na1 Nc7 Rh4 Rf1 h1Q Ne8 h2 Bh5 Bh8 Rg1 Rh3+ Rg3 Qg2 Nf4 h1Q Bc7 Qf6 d8N Bd7 Rd3 Qe3 b8R Rb6 Qe1 Ba4 d7 Bd1 Bf8 Rd6 R8b5 Qgg6 Kb4 c3 Kc4 c2 Bh7 c1R+ Qc3 Rc2 Bb8 Re2 Rdd5 Rc6+ Rdc5 Rcc7 Rc6 Qh4 Qa3 Qg4 Qc5 Kf3 Kd5 e4 Kd6 Be5+ Ke7 Qh6 B5g6 Qgh4+ Kf7 Qf6+ Kg8 Qd4 Qe7 e3 Qc5 Qe7 Bf7 Qed6 Rcb6 Qc6 Bc2 Qb7 Ba4 Qc6 Bh5+ Ke4 Rb7 Qg2+ Ng6 Kd3 Bb3 Kd2 Bc2 Qge4 Nf4 Qg5+ Ng7 Qeg2 Nf7 Qe7 d8B Qgf3 R1b3 Kc1 Kh8 Qed7 Bg5 Qc8 R7b6 Q8b7 Rb1+ Kd2 R1b4 Re7 Rb3 Bc7 Bf6 Re1 Rc3 e2 Nd5 Ng5 Re3 Kc1 Rbb3 Rg1 R6b5 e1R Nd6 Re2 Nde8 Rg4 Re5 Qfe3 Re4 Rd7 Re7 Ne6 Rb2 Rg6 Bg5 Bg3 Bd6 Rc7 R2b4 Bh4 Bh2 Bg3 Rb2 Bd6 Nf4 Be5 Rb1+
b3N1R1/n1K4B/3B4/1Rb3B1/1brnqq1N/N4N2/kq1rPq1R/b1N2Q1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 h5 g4 a5 b6 c5 g5 f3 d6 a4 d5 a3 b7 a2 d7 f4 g6 f2 d6 f3 g7 h3 b5 h2 b6 h4 Bh6 h3 Qd4+ Kb3 Bg5 c4 Na3 c3 Qd1+ c2 Bg2 Rh4 Qf1 Nh6 g8N c1B Ne7 Bd2 Ng6 Rc4 Nh4 Nc6+ Ke6 Nf5 b8B Qc7 b7 Na7 Re1 a1B Rb1+ Ka2 Rb5 Be7 Kd5 Qb6 d8N Ba5 d7 Bc5 Bd6 Bab4 b8N Nd4 Ndc6 Bb7 Na6 Rd8 Nc7 Ba8 Ne8 Qb8 Ke5 Qb6 Na5 Qb8 Qc1 f1Q Nb3 f2 Ngf3 Qg1 Qe1 f1Q Qf2 Qb1 Qf1 Qf2 Nc1+ Kb2 Kf6 Qf5+ Ke7 Qf4 Ne5 Qb6 Be4 Qb7 Nef3 Qb6 Rg1 h1Q Bh7 h2 Rg3 Qhg2 Rh3 h1Q Rh2 Qgg4 Qd1 Qgf5 Qf1 Q5e4+ Ne5 Rc8 d8R Rc2 Kd7 Rd2 Nef3 Rc6 Nc7 Qb7 Rg8 Qb8 Nd3+ Ka2 Ne8 Bb6 Bde7 Rc4 Bc5 Qbe5 Bd6 B6c5 Kc7 Ndc6 Nb1 Qb2 Na3 Nd4 Nc1+
1nbb1bBN/4k2R/1R1n4/q1P1B1r1/1NN2rb1/2R2NN1/Q1r1BK1b/1q1r4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 a5 f4 e5 b4 h5 b6 d3 c5 d2+ Kf2 d4 b5 d3 f6 a4 f7+ Ke7 f5 h3 g5 a3 b7 h2 b6 a2 g6 h4 g7 h3 Nc3 e4 Be2 Nf6 g8B Rh5 Qb3 d1B Nf3 d2 Bb2 Rg5 Rc1 a1B Qa2 Ra4 Rc2 Ne8 f6+ Kd7 Rc1 Nd6 Rc2 Nc6 b8R e3+ Kf1 Rd4 b7 Rf4 Ne4 Qa5 Be5 Bb2 Ng3 Bd4 Rg1 h1R Rc3 Rh2 Rh1 Kd8 Ra8 Rg2 b8N h2 Na6 Nb8 Nb4 Kd7 Ra6 Kd8 Rg1 h1Q Rb6 Qh7 Rh1 Qb1 Rh7 Rh2 Bd3 Rf2+ Kg1 e2 Bc4 e1B Be2 Bh6 f8N Bg7 f7 Ke7 Ne6 Bf8 Nd8 Rh2+ Kf1 Bg1 Nb7 Rg2 Ba6 Bh2 Be2 Qa7 Na5 Qa8 Nh5 Bh4 Nc4 Qa5 Ng3 Rg1+ Kf2 Rg2+ Ke3 Bb3 Bd3 d1R Bf1 Rc2 Be2 Ba4 Kf2 Bad7 Nb2 Bg7 f8N Bg4 Ng6+ Kd7 Bf7 Bf8 Nh8 Ke7 Nc4 Rg7 Nd5+ Kd7 Qa3 Bd8 Qa2 Rg5 Nb4 Ke7 Bg8+
2Rb2Qb/KNR1R2b/n3r1Nn/2r1B1Br/2N2bq1/1q5B/2q2BPr/1B5k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kd6 d4 h5 b4 a5 b6 c5 b5 f5 b7 h3 b6 h4 Qd2 f3 Ke3 h2 Qb2 f4+ Kd3 h3 Kc4 f2 Kb5 c4 Bd3 f1Q Ra4 c3 Qb3 f3 Qd1 c2 Bg5 c1B Nd2 f2 Rc4 a4 Ne2 a3 Qb3 a2 Nf4 a1B Bb1 Na6 b8B+ Qc7 b7 Qd3 Re1 h1Q Ng6 f1R Ba7 h2 b8B Be7 Re3 Bf5 e5+ Kd7 d6 Ke6 d7 Nh6 d8R Re1 Rc8 Bd8 Qa2 Kd5 e6 Qb3+ Rb4 Qf1+ Nc4 h1R e7 Rh2 e8B Qe2 Bd7 Qg4 Re7 Bf4 Bc5 Bd3 Be6+ Ke4 d5 Rh7 d6 Bh8 d7 Ra7 Bb6 Qc6+ Ka5 Rc7 Bf2 Qca4+ Kb6 Rc5+ Kb7 Qc2 Ka7 Qab3 Rb7 Re2 Bg3 Kd4 Bf5 Re6 Rbc7 Be4 Be1 Kd3 Bf2 Ke2 Nd6 Kf1 Nc4 Qgd1 Bh3 Qg4 Qa1 Bf5 Qg7 Be4 Qg8 Bd3 Be1 Kg1 Bf2+ Kh1 Rc6 Nf7 Be5 Rh5 R6c7 Nh6 Rb7 Ba5 d8N Be4 Rbd7 Bc7 Nb7 Bd8 Rdc7 Bf5 Nh4 Bh7 Ng6
1N1Nbnrk/3R4/5Rqq/r1qb2Br/1n3bK1/1q3NBN/3P4/1rR1QN1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 Kf3 Kf7 e4 Kg7 g4 c5 b4 a5 e5 h5 g5 a4 e6 h3 d6 h2 d7 a3 g6 a2 e7 h4 e8R h3 b6 c4 b5 c3 b7 c2 b6 Qg5 d8N Na6 b8B Nf6 b7 Rh5 Ba3 c1Q Qe1 Bd6 Ne2 Nb4 Qd1 Bd7 Re5 Kh8 Qe1 Nh7 Rd5 Qc5 Bg2 Nf8 Ng3 Be8 Rf1 h1Q Nc3 h2 Rc1 a1R Nd1 Qh6 Nf2 Qg1 Bc7 h1B b8N Be5 Bb2 R1a5 Ba3 Bd6 Nh3 Be5 Rd7 Bd6 Ke2 Be5 Bc6 Bd5 Rf2 Qg2 Nf1 Qg3 Bb2 Qa3 Bd4 Qb3 Be3 Bd6 Rf3 Be5 Kf2 Bd6 Kg2 Be5 Kh2 Bd6 Rf2 f3+ Bf4 Be5 Bg3 f4 g7+ Kh7 g8N+ Kh8 Ne7 Bd6 Rg2 f2 Nf5 f3 Nd4 Bf4 Bd6 Qg6 Be7 Qh6 Bg5 Qg6 Ne3 f1Q Rf2 Qa6 Rf1 f2 Bb7 Bg8 Bh1 Bd5 Nf3 Qab6 Rg1 f1R Rg2 Qh6 Rf2 Rg1 Nf1 Qbg6 Ne5 Be3 Rf6 Bf4 Nf3 Rb5 Rdf7 Raa5 Rd7 Rb7 Rdd6 Rg7 Rd7 Rg8 Qe2 Qgc2 Ne3 Be6 Rd1 Bc7 Be5 Rf1 Kg3 Bd5 Kg4 Qcg6 Bg3 Re1 Nf1 Bf4 Ra1 Rc1 Qe1 Rd1 Ra2 Ra1 Rc2 Rb1 Rc1
1b3rb1/2kR2Nr/Q4n1N/1r1RN3/3bn1B1/N3P1NK/R1r1n1BB/q1nq4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 a5 Kg2 c5 d4 f5 b4 h5 b6 h3+ Kh2 a4 d6 f3 g5 a3 b5 a2 e3 h4 b7 f2 g6 f4 g7 c4 b6 c3 d5 c2 Ba3 c1N Qe2 f3 Qa6 Nf6 g8B Rh7 Ne2 Ne4 Bg2 f1Q Ng3 f2 Bc5 Qe1 Na3 f1R Bb4 Qf6 Be6+ Kd8 d7 Qd1 Bg4 Rf2 Bc5 Rc2 Bd6 Bh6 Re1 Bf4 Re2 Qb2 Rb1 Qg7 Rb5 a1B Rf2 Bd4 Rd2 Nc6 b8N Ne7 b7 Ng8 Rb2 Qe5 Ra2 Ngf6 Rd3 Bb6 Rd2 Qa1 Rd3 Bd4 Be5 Nd6 Nc6+ Kc7 d8N Be6 b8R Bg8 Rb5 Rb8 Rc5 Rb5 Rd2 Rf7 Rd3 Rf8 Ne6+ Kd7 Rd2 Nde4 Bb8 Bfe5 d6 Bf4 Rd5 Bfe5 Qa5 Kc8 d7+ Kb7 Ba7 Bb8 d8N+ Kc8 Nf7 Kb7 Qa4 Kc8 Bf1 Kb7 Ng7 Kc7 Kg1 h2+ Kg2 h1N Qa6 h3+ Kh2 Nhf2 Nh6 Nfd3 Ne5 Nf4 Bc5 Nfe2 Bd6+ Kd8 Kh1 h2 Kg2 h1R Rd3 Rg1+ Kh2 Rg2+ Kh3 Rf2 Bg2 Rf3 Bb4+ Kc7 Be1 Rf7 Bf2 Rf5 Bg1 Rf8 Bh2 Rg5 N7h5 Rg7 Rd2 Rh7 Ng7 Bb2 Rd8 Bc3 R2d5 Bd4 R8d7+
2b1R2q/BBrQN3/qbR1Nb1R/nqr3RK/1Pn1q2b/8/R1n2BN1/2k5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 Kd4 b4 h5 d6 f5 g5 a5 b6 c5 b7 c4 d3 a4 d7 a3 e5 h3 e6 c3 g6 a2 e7 c2 e8N h2 g7 h4 Qd2 h3 Na3 Qb6 d8B Nh6 g8R Ng4 Bc7 Qa6 Rg6 Ne3 Qg2 Kc3 d4 Nc4 d5 Rh7 d6 Be7 d7 Nc6 d8R Bh4 b8R N6a5 Bb6 Rc7 Bce3 Kb2 Qg3 c1B Bf2 Be3 Ba7 Bb6 Nb1 Kc1 Qg4 Rc5 Rb7 Rb8 Re7 Rb7 Bg2 Rbc7 Ng7 Qb5 Rg8 Qa6 Ree8 Qb5 Ke2 f3+ Ke1 f4 Rc6 Qa6 Qd7 Qb5 Ne6 Qa6 Bg3 f2+ Ke2 f1N Kf3 Nfe3 Rg5 Nc2 Kg4 f3 Kh5 f2 Nf3+ f1Q Ne1 Qf5 Bf2 Qe5 Rf1 h1Q Rg1 h2 Nc3+ Kb2 Bd5 Qhe4 Ng2 h1Q Rgd1 Q5f5 Rd2 Qhh3 Rh1 a1B Rh2 Kc1 Re2 N2e3 Ra2 Nc2 Rh1+ Qe1 Rh2 Qfe5 Bf3 Q1e4 Nd5 Q5f5 Ne7 Bf6 Nef4 Qe3 Bd5 Qee4 Ne6 Qc3 Rd6 Qfe5 Bb7 Q5d5 Rh3 Qc6 Rh2 Qcb5 Rc6 Bd4 Bg1 Bg3 Kh6 Qa1 Rhh5 Bh4 Bf2 Bc3 Rg6 Bh8 Rhg5 Qg7+ Kh5 Qg8 Ne3 Bf6 Ng2 Qh8+ Rh6
r2NN1nq/Q1NR2BR/b2b1n2/1P1bn3/2b2r2/1N2R1rn/K2N1k2/1Br4B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 g4 f5 e4 c5 b6 c4+ Ka3 c3 b4 h3 b7 h2 b5 h4 g5 a4 g6 f3 g7 h3 Bc4 f4 Be2 f2 Nf3 f1B Ka2 c2 Nbd2 a3 Nb3 Nd7 b8N Ba6 Bb2 Ndf6 Nfd2 f3 Bd3 f2 Qh5 c1R Bb1 Bc4 Qf7 f1N Qa7 Ne3 Re1 Neg4 Re3 h1N Bc3 Bb7 Na6 h2 Nc7 Rh3 Bb2 Ba6 e5+ Ke7 e6 Kd6 e7 Nhf2 Bc3 h1B Bb2 Ne5 e8N+ Kd7 d6 Bhd5 Bc3 Rg3 Bb2 Nh3 Bc3 Ne7 g8B Rf1 Bgh7 Neg8 Bhe4 Rf4 Bh1 Be7 Ng7 Qf8 Nge8 Qh6 Bb2 Qh8 Bc3 Kd8 d7 Bd6 Bb2 Ke7 d8R Kf7 Ne4 Kg6 Nd2+ Kg5 Rd7 Kg4 Rh7 Rgf3 Rd7 Kg3 Rh7 Be6 d5 Kf2 Rd7 Rg3 Bd4 Bb4 d6 Bed5 Rh7 Bc5 d7 Bf8 d8N Bd6 Bf5 Bc8 Rd1 Ba6 Ka1 a2 Bb1 Be2 Kb2 a1R Bc3 Raa4 Bd4 Rc4 Ka2 Rc1 Rg1 Rgf3 Rgg7 Bec4 Re7 Rg3 Rd7 Ba3 Bc5 Bb4 Bf8 Bd6 Bg7
1r2BB2/1NR2b1N/8/b2N2B1/r1n2Bk1/1qpB1R1b/1Pnq2bQ/1KR1rb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 d4 c5 Kd2 f5 Kc2 a5 e4 h5 e5 c4 g5 c3 b6 h3 g6 a4 b7 h2 g7 a3 d6 Ke6 d7 f3 Be2 f4 d5+ Kf5 e6 a2 d6 f2 e7 f1R e8N f3 Nd2 h4 Bd3+ Kg4 Qe2 h3 Nc4 Nc6 b8B Nf6 g8B Nd5 Nc7 Ne5 Na5 Re1 Bf4 Nc4 Nb7 Ra4 Rc1 a1Q Bf7 Qa2 Be8 Qb3+ Kb1 Nde3 Nd5 Nc2 Ba7 Qg5 d8R Bf5 d7 Bb4 Bc5 Ba5 Qd2 f2 Bf8 f1B Nf3 Be6 Qf2 Bf7 Rc8 Qh6 d8B Qg5 Bfc7 Qd2 Ng5 Rg8 Bg3 Rh8 Rg1 h1B Nh7 h2 Bg5 Bhg2 Rc7 Bh3 Rg2 h1B B3f4+ Kh5 Rg3 Bh1g2 Rf3 Kg4 Qg1 Rg8 Qh2 Rh8 B8d6 Rf8 Bb5 Rc8 Bf8 Rb8 Be8
1BBN1bq1/1N1NB1bB/b5n1/B4q2/n2Pk3/2n2Rnp/2Kn1r2/1R2RrQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kf6 e4 Ke5 g5 h5 g6 c5 d6 a5 d3 f5 Kd2 a4 b6 c4 d7 c3+ Kc2 h3 b5 h2 g7 a3 b7 h4 b6 f3 Ra2 f2 Nd2 h3 Qg4 f4 Nb3 f3 Bg5 Ne7 g8B Na6 Nc5 Ng6 b8B+ Kd4 Bg2 f1Q b7 f2 Bc7 Rh7 b8B Rf7 Ra1 a2 Nb7 Nc5 Bh7 Na4 Re1 a1B Ba5 Ra6 Qg3 Raf6 e5 Qe8 d8N Qe6 Kc1 c2 Nf3+ Kd5 Kd2 c1N Kc2 Na2 Bh4 Rf4 Be7 N2c3 Qg4 Qf5 e6 Qg1 Ne5+ Kd4 Bf3 f1N Nd7 Nd2 Re3 Qg2 Rb1 h1N Bc6 Qgd5 Qg1 Rf2 Rf3 Ng3 Bb5 Bb2 Ba6 Ba1 Bh4 Rf6 e7 Qg8 e8R Bb2 Ree1 Ba1 Bc4 Rf7 Be6 Rf6 Nbc5 Ba6 Ncb7 Qd5 Rb6 Nce4 Rfe3 Rg2 Ndc5 Rf1 Rbb1 Rgf2 Rf3 Qf5 Bc8 Kd5 Be7 Bag7 d4 Nec3+ Kc1 Bb5 Nd7 Ba6 Rd1 Ke4 Kc2 Nb6 Rdc1 Nba4 Re1+
B1Nb2R1/2n2KN1/r2N2n1/2qp3Q/2r2R2/2Nb3q/1Nq1P1qq/B1k2BRn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 b4 d5 h4+ Kg4 c4 a5 h6 g5 c5 d3 b6 f3 h5 a4 h7 d2 h6 f2 b7 a3 c6 f4 c7 f3 b5 a2 b6 Na6 b8N Ne7 Kf6 Kf4 b7 Ke3 Rh4 g4 Nc6 g3 b8R g2 Rf4 Bf5 c8B Ng6+ Ne7 Qa5 Bb7 Bd3 Nh3 g1Q Ng5 Qg2 Ne6 Qc5 Nc3 Nc7 Ng7 Ra6+ Kf7 Rg8 Rb1 a1Q Nc8 Be7 h8N Bd8 h7 Re8 Ra8 Re4 Bb2 Rc4 Qc1 Qa4 Ba1 Qc2 Rb8 Qh1 Ba8 Qh2 Qa3 d1N Qb4 Ne7 Ng6 Kd2 Ne5 Ng6 h8N Qh6 Bh3 f1Q Qb6 Qh1 Bf1 f2 Qc6 Q1h4 Qe8 Qh2 Rc1 Q6h3 Rcb1 Be4 Nd3 Q3g2 Nb2 Bd3 Qe5 Qgh3 Rc1 Q3g2 Qh5 Qgh3 Bg2 f1Q Rb1 Qfh1 Rc1 Nf2 Rg1 Qb4 Bf1 Qc5 Kg8 Q1g2 Nf7 Kc1 Nfd6 Nh1 Kf7 Bh4 Nb6 Bf6 Rg8 Bd8 Nbc8
3bn1bQ/1R1NrN1B/2NRPpK1/3rBn2/5R1r/R3q2b/1B2R3/rr1q1k2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 b4 Kg4 d4 Kg3 b6 Kf2 g4 a5 g5 h5 b7 c5 g6 f3 g7 f6 d6 h3 d7 a4 Kf5 h4 e4 h2 b5 a3 e5 h3 e6 a2 d5 c4 b6 c3 d6 c2 Bd3 Ra5+ Kg6 Rh4 Na3 Rd5 Nc4 Na6 b8R Nh6 g8R Nc7 b7 Nf5 Ne2 Be7 Re1 h1R Bb2 c1Q Nb6 h2 Nd4 Qe3 Nc6 Ne8 Bb1 Kg2 Re2+ f2 Qa4 Rh7 Qa8 Kf1 Rh8 Rf7 Rh4 Rg1+ Rg4 h1R Bc2+ Rd1 Be4 Rh4 Bb1 Rgh1 Rf4 Rd5 Bc2+ Kg2 Bd3 Rb1 Be4+ Kf1 Bc2 Qc7 d8N Qd7 Be4 Rfh7 Nf7 Bd8 Bd3 Qc7 d7 Qd6 Nh8 Re7 Nf7 Kg1 Bc2 f1B Be4 Bh3 Bc2 Bc7 d8R Bd7 Be4 Qb4 Bc2 Qa4 Be4 Qd1 Bd3 Bc8 Rd6 Bd7 Be4 Neg7 Bd3 Be8 Nd7 Ba5 Rc8 Bd8 b8B Qf3 Rc7 Kf1 Rb7 Qf2 Ra4 Qe3 Ra3 Rc1 Rb1 a1R Be4 Rc4 Rc1 Rb4 Rc4 Rb3 Bd4 Rbb1 Bb2 Qed2 Bc2 Qe3 Rf4+ Qf3 Ba7 Bc7 Bad4 Nh6 Kh7 Bb6 Nfe5 Bf7 Qg8 Bd8 Qh8 Ne8 Be4 Nc7 Kg7 Bg8+ Nf7 Qf2 Bh7 Nf5+ Kg6 Ne8 Be5 Qf3 Rfe4 Qe3 Rf4+
b1BR3q/1p2nB2/R4R1b/N1r1n1Q1/3k3b/1P5K/nbBNr1R1/2b1NRq1 b - - 0 1 illegal: Other
5BqR/3NBrn1/nN4bn/1KQ5/1pP1n1B1/Rr1k4/R2b1Rq1/1R1q2Nb b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 a4 d5+ Kb5 e5 h4 g5 c4 d3 f6 g4 f5 g3 h6 b3 h5 b2 h7 g2 f7 d2 f6 d4 h6 d3 a5 Bb4 f8N Na6 f7 Rb8 Nf3 g1Q Be2 Qg2 Na3 b1B Qa4 d1Q Rh2 d2 Rh1 b6 Rh3 Bb7 Ng1 Ba8 Bf3+ Kd3 Nd7 e4 f8B e3 Nc2 e2 Ba3 e1N Bg4+ Nf3 Ne3 Ng5 Rh2 Bc3 Qb4 Ne6 Ra2 Ng7 Qc5 Be4 Nd5 Rb7 N7f6 Rf7 Nd7 Qg5 Qc8 Bf3 Bae7 Bb4 Qc5 Bc2 Kc6 b5 Kb6 Bc3 Kc6 b4 Kb5 Qge2 N5b6 Bh1 Ra3 Qg2 Ra2 Qdf3 Ra3 d1N Ra2 Nf2 Ra3 Nb8 a6 Ne4 a7 Qd1 a8R Na6 Ra2 Bd2 Ra7 Ngf6 Ra8 Rg8 h8R Qd5 h7 Qe6 Bh5 Ng4 Ra7 Nh6 Bg4 Qh3 Rf2 Qg2 Bd6 Qd5 Bfe7 Rd8 Rg8 Rdf8 h8R Rf3 Ra8 R8f7 Bf8 Qg5 Bde7 Ngf5 Rb2 Kc3 Rb1 Nc7+ Kc6 Neg3 Ra2 Na6 Rg6 Bd3 Rf6 Qg8 Rg6 Ng7 Rf6 Bg6 Kb5 Ne4 Qh5 Rg3 R6f3+ Kd4 Rfa3 Rb3 Qf5 Kd3 Qc5
1B1N2q1/bBQ2nR1/1qr1Rrb1/prN1knq1/NP6/q4R2/4NKN1/1b5B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 a5 g6 h5 g7 f3 b6 f2+ Ke2 h3 b7 h2 Kf3 h4 Bc4 f1B Nc3 f4 Ra3 h3 Ba6 c4 Qc2 Rh5 Kf2 f3 Nge2 Ne7 g8R Qb6 Na4 c3 Rg7 Nd7 b8N Ne5 Nd7 Nf5 Ndc5 Nf7 Bb7 Ra6 Bh6 Bg2 Rd1 h1Q Rd2 h2 Bf4+ Ne5 Bg3 Qc1 Rd1 Qf4 Qc1 Nf7 e5+ Kc7 e6 Kd6 e7 h1Q e8B c2 Rc3 Rg5 Bd7 Qh7 Bdc6 Qg8 Rdd3 Qe5 Qf4 c1Q Ra3 Ke7 d6+ Kf6 d7 Qd5 Rac3 Qa3 d8N Bd7 Qb8 Be8 Nde6 Bd6 Qa7 Bb8 N6f4 Qdd8 d5 Ke5 d6 Rh5 d7 Qg5 Qa8 Ba7 d8N Bh3 Qc8 Bg4 Kf1 f2 Bh1 Bf3 Rd6 Be4 Rf3 Bb1 Kg2 f1R Qc7 Rc1 Nce6 Rc5 Kf2 Rb5+ Nec5 Rh6 Bh2 Rf6 Ba8 Qb8 Bb7 Rc6 Bg3 Nh8 Bh2 Bg6 Bg3 Nf7 Ng2+ Qf4 Bc8 Qb6 Bb7 N7h6 Bh2 Nf7 Rd2+ Rfd6 Qd7 Kf6 Bg3 Re6 Rd5 Qfc1 Bb8 Qg5 Rd6 Ke5 Qc7 Rf6 Re6+
3B1Q1q/2rr4/1Br1n1PN/1BBbR1R1/Kb2B1R1/p3n1NN/5rbk/6qq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 g4 f5 e4 c5 b6 c4+ Ka4 c3 b4 h3 g5 f3 b7 f2 g6 c2 b5 h4 b6 f4 Qf3 h2 Bd3 f1Q Nc3 h3 Be3 c1R Nce2 Ra7 Ng3 Na6 b8R Ne7 b7 Rc7 Re1 Be6 Bf2 Nf5 e5+ Ke7 Bb1 Ne3 d6+ Kd7 Ra8 Bd5 b8B Ke6 d7 Bb4 Be4 Rf8 Re2 Rf6 Re1 Qf8 d8B Qh8 Re2 Rd7 Bd6 Nc7 Bc5 Qe1 Rb8 Qc1 Rb5 Qe1 Qh5 f3 Qh6 Qc1 Qf8 Qf1 Be1 f2 Bb6 Qg2 Rc5 f1R Bf2 Rc1 Nf1 Bc4 Bd5+ Kf5 e6 Kg4 e7 Nd1 e8B Ne6 Bdc7 Rg7 Bb5 Be1 Ka3 a4 Bdc6 Rf5 d5 Rff7 Bd4 Rf2 d6 Rc3+ Kb4 a3 d7 Rgf7 d8N Rd7 Nf7 Bb3 Bce5 Rac7 Bf6 Ba2 Bd8 Bc4 Nf3 Qg1 Ng3 Rc1+ Ka4 Bb4 Rf5 Rc2 Ree5 Ne3 Be4 Bd5 N3g5 R2c6 Bdc5 Kh4 Ne2 Kg4 Nh6+ Kh4 Nc1 Kg3 Rf4 Qe1 Rf1 h1B Rff5 h2 Nh3 Bf3 Ne2+ Kg2 Rh5 h1Q Rhg5+ Kh2 Rfg1 Qb1 R1g3 Bg2 R3g4 Qbg1 Ng3
3BN1K1/3N3B/BP1r2b1/NnBQ1n2/3rR1b1/2b1br2/1q1pB1qR/Rn4k1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 b4 e5 f4 d5 c4 d3 c5 d2 g5 Ke3 b6 Kf2 c6 h3 g6 d4 b5 h2 b7 a4 c7 e4 b6 a3 f6 d3 f7 e3 g7 e2 f5 e1B f6 a2 Ne2 Nh6 g8B Qd5+ Kh4 Ra4+ Nf4 Rd4 Na3 Bc5 f8R Na6 b8N Qg2 Kh5 Bg4+ Kg5 Nf5 c8B h5 Kg6 h4 Kf7 h3 Qa4 d1N Ne6 Rh6 Ng7 Nc3 Qc4 Nc7 Bg5 N7b5 Be2 Nb1 Nd7 Bc3 Re8 d2 Bh7 Rg6 Kg8 Rh6 f7 Rhd6 Rd1 h1R f8B h2 Re4 Rf1 Qd5 h1B Ba6 Kg1 Bh4 Rc6 Nc4 Rd6 Be1 Rf3 Na5 Rb4 Ne8 Be3 Be7 Rd4 Bd8 N1a3 Rab1 a1Q Rb4 Qb2 Ra1 Nb1 Beh4 Qf2 Bhe7 Bg2 Rc4 B2h3 Rca4 Bh5 Rh4 B3g4 Rh2 Qg2 Rc4 Bg6 Bf8 Rd3 Re4 Rd4 Bfe7 Re6 Ba3 Rd6 Bc5
k2BR1Qb/1Bp4n/1R6/N1r1P2B/Nr2Rr1N/3bBb1r/3Bq1n1/K3n1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc2 f5 g4 a5 b4 a4 Kb2 f3 e4 f4 b6 f2 e5 f3 b7 a3+ Ka2 h3 b5 h4 g5 h2 b6 h3 g6 Ra5 g7 Nf6 g8B Rc5 d6 Kc6 d7 Nh7 Be3 Bg7 Bg2 f1N Bf7 Na6 b8N+ Kb7 d5 f2 Qg4 Ka8 Nc3 Nb4+ Kb1 Qe8 d8B Nc2 Na4 Ne1 Nf3 Ba6 d6 a2+ Kb2 Be2 d7 Bd3 Rb1 a1R Bh5 Qg6 Be7 Rf8 d8B Rf4 Bg5 Bh8 Nc6 Ra3 Bh6 Rb3+ Ka1 Rbb4 Na5 Qg8 Rg1 h1R Qg7 Qc4 Qg8 h2 Nh4+ Qe4 Bd2 Ne3 Bgf3 f1B Rg4 N3g2 Bhg5 Bfe2 b7+ Ka7 b8R Qc4 Bb7 Bf3 Bc8 Qc2 Rb6 Ka8 Re6 Qd1 Re8 Qe2 Rb2 Rf1 Be3 h1Q Rb1 Qg1 Bd2 Rf7 Re4 Rf5 Bge3 Rf4 Nf5 Rh4 Rb3 Rh3 Nh4 Bg4 Rb1 Rf4 Rb3 Bf3 Rb1 Rbc4 Rb6 Rb4 Bb7+
2NNR1b1/kn4n1/rqB2BRQ/1nNRb3/1rB4n/rP1n4/2K1Np2/5N1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 c5 d4 Kc7 Kd2 Kb7 d6 h5 e5 a5 e6 f5 d7 a4 b3 h3 d5 f3 g5 a3 g6 a2 b6 f2 d6 h2 e7 f4 e8B f3 g7 c4 Kc3 h4 Ne2 h3 Bg2 f1R Bh6 Ra3 Kb2 c3+ Kc1 c2 Nbc3 Nf6 g8N Nh5 Ne4 f2 Rb1 a1N Kb2 c1N N4g3+ Nc6 Ne7 Ng7 Kc3 Nc2 Bg5 Rh4 Rg1 h1N Bf6 h2 Qd2 Nd4 Bd5 Nb5+ Kc2 Rb4 Bc4 Nd3 Qh6 Na5 Rd1 Qc7 d8R Be6 d7 Bg8 Nc8 Bd6 Rd2 Rfa1 Nf1 Be5 Rg6 Ng3 Rd1 Ka6 b7 h1N b8N+ Kb7 Na6 Qb6 Rd2 N3f5 Nc5+ Kb8 Rd1 Nb7 Re1 Nh4 Rd1 Nf4 Rd5 Ka8 Bf7 Nd3 Re8 Ra6 d8N R1a3 Be6 Kb8 Bd7 Ka8 Bc6 Kb8 Ne7 Ka7 Nc8+
n5b1/1BN2rk1/1B1q2N1/RKnn1P2/1BN2b1R/4p1b1/n1RrB1QB/1b5b b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 e5 g4 h5 f4 c5 d4 a5 b6 e3 Kd3 a4 Kc4 e2 b5 e1B f5 a3 b7 a2 g5 e4 b6 h3 d6 h2 d7 h4 g6+ Kg7 d5 h3 d6 e3 Nf3 Ne7 Nh4 Rh7 Be2 Na6 b8N Bg3 b7 Nd5 Ba3 Nac7 Bb4 Ra7 Qc2 Na8 Kb5 c4 Na3 c3 Qe4 c2 Qg2 c1N Nc4 Qf6 d8R Be6 d7 Bg8 Na6 Bfd6 b8B Bdf4 Rf8 Qd6 d8B Rf7 Bb6 Rh8 Nc7 Rh6 Rb1 a1N Rc8 Nab3 Ra1 Nc5 Ra4 Na2 Ra5 Kf6 g7 Rh7 Rb1 h1B Ng6 h2 Rc1 Rh6 Rc2 Rh7 Re8 Rd7 Re4 Kf7 Qf2 Bf3 Rd4 Be4 Qg2 Bd3 Re4 h1B Rd4 Kf6 Re4 Rf7 Rd4 Rh2 Re4 Bh7 g8B Kg7 Rd4 Bg5 Rh4 B5f4 Rc3 Bb1 Rc2 Re7 Be6 Rf7 Bc8 Bg8 Bb7 Nf6 Qc6 Rf2 Qg2 Nd5 Bf3 Rd2 Bg4 Bg5 Be2 B5f4 Rh3 Qf6 Qf3 Bg5 Qg2 Be1 Na6 Bf2 Bf4 Qd6 Bh2 Bg3 Nc7 B5f4 Rh4
2nK2R1/4r1NQ/7B/BrnB2B1/B2Rpr1q/3P1b1N/N2k1b2/1nRr2bn b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 c5+ Kc4 e5 b4 e3 f5 e2 b6 e1R Kb5 a4 d3 c4 g5 c3 g6 h3 f6 h2 f7 h4 g7 c2 b7 a3 Bg5 c1B Nh3 a2 Nc3 Nd7 b8R Rh5 Be2 Be3 Rg1 h1R Rg4 Bb7 Rc1 a1N Na2 Bg1 Rd4 Ne7 g8B Nc2 Bf3 Bh6 f8N Nc8 Ne6 Nc5 Ng7 Ra4 Qd2 Re4 Qh2 Bf2 Be6 Rd1 Bd7 Ra7 Qh1 Rf4 Be8 Ba8 Qh2 Rc7 Ka5 Na3 b5 Bb7 b6 Nb1 Ba4 Re7 Kb5 Ba8 b7 Bg1 Qe2 Qh8 Qe4 Bf2 Qh7 Bg1 Nf2 h3 Ka5 h2 Nh3 h1N Bg2 Nb6 Rg8 Nc8 b8B+ Rc7 Ba7 Re7 Bb6 Bf2 Kb5 Bg1 Ba5 Bb7 Bh4 Bg5 Bhe1 Bh4 Bed2 Bhf2 Be4 Rg4 Bh6 Rf4 Ne6 Qf6 Ng7 Qh4 Bg2 Kd7 d6 Bf3 Nf5 Ke6 d7 Kf6 Ng7 Rhf5 d8B e4 Kc6 Ke5 Bf1 Rb7 Bdg5 Rff7 Be2 Rfe7 Bb3 Rb5 Bd5 Nd7 Kc7 Nc5+ Kd8 Rf6 Rdc4 Rf4 R4c2 Kd4 Rc4+ Ke3 Rd4 Bg2 Bg4 Bf3 Bge6 Ke2 Bb3 Ke3 Ba4 Ke2 Bd5 Ke3 Bc7 Kd2 Ba5+
Rqn1q2B/1r2Bnb1/bB5B/b1N2P1K/1Npq2R1/kb2r1qB/R2N4/1Q6 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 Kd6 d4 a5 f4 h5 g4 c5 f5 e5 g5 a4 g6 a3 b6 a2 g7 h3 b5 h4 b7 h2 b6 h3 Ke3 Nd7 b8N Ba6 b7 Rh7 Bd2 Nb6 Bc1 Nc8 Na3 Qe8 Nf3 Nh6 g8R Nf7 Nd2 Bg7 Rg1 h1B Rg4 h2 Nc2 c4 Bb2 Bf3 Bh3 h1Q Nd7 Qh2 Qb1 Bd1 Nb4 Bb3 Nc5 Qf4+ Ke2 e3 Bc3 Qh2+ Kf3 e2 Rf8 Ra7 b8B+ Rc7 Ba7 e1Q Bb6 Re7 Rg8 Qhg1 Bb2 e4+ Kf4 e3 Bc1 Nh6 Kg5 e2 Rh8 Qb5 Kh5 Re3 Bb2 Qgg3 Rg8 Na7 Ra8 Nc8 Bc1 Be5 Bb2 Rb7 Bc3 Bg7 Bb2 Nf7 Bc1 Ke7 d6+ Ke8 d7+ Ke7 d8B+ Kd6 d5 Qe8 Nf3 Qef2 Bh4 e1B Bf6 Bc3 Nd2 Qff4 Nbd3 Ba5 Nb4 Qd4 Be7+ Ke5 d6 Qb2 Nde4 Kd4 d7 Qbh2 Nd2+ Kc3 d8B Qb8 Nf3 Qhg3 Bdc7 Re1 Bh6 Re3 Qf1 Kb2 Nd2 Ka3 Be5 Bf8 Bh8 Bg7 Rb1 a1Q Rb2 Qd1 Rc2 Qa1 Qb1 Qd4 Ra2+
qB2KRk1/1R1rBp2/R2RB3/2nN4/3N1nN1/P1r5/rQ2b1nq/n3b1Rr b - - 0 1 illegal: No possible last move, all moves rejected
q2R2BB/4PK2/bBq4b/N4NrN/1nnNnpR1/1r3r2/1Qn2k1N/4rR2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kc4 g4 c5 e4+ Kb4 b6 f5 d6 a5 b7 a4 d5 f3 g5 f2 g6 a3 g7 a2 d7 h3 Ke6 f4 d6 c4 e5 Kc5 b4+ Kb6 b5 Kc5 b6 c3 Na3 c2 Qe2 Kd4 Kf7 h4 e6 h2 e7 h3 Nc4 Rh5 Na5 Nf6 g8N Na6 b8N Ne4 b7 Nb4 Nf6 Rg5 Nh5 Bh6 Rb1 Qb6 d8B a1N d7 Qc6 Bd2 c1R Bb6+ Rcc5 d8N Nac2 Ne6+ Ke5 Ra1 Rc3 Neg7 Rf3 Nf5 Rb3 Bg2 f1N Nf3+ Kd5 Qf2 Nfe3 Bc3 Nc4 Rhf1 h1Q Bh8 h2 Rg1 Ra7 Raf1 Ra6 Bh3 Qg2 Qe2 h1R Nh2 Qf3 Rg4 Ra8 Rf2 Re1 Rf1 Qg2 Qf3 Ra6 Qc3 Qh1 Qb2 Rf3 Nb3 Ra3 Nbd4 Rab3 Bg2 Qa4 Nbc6 Qa8 b8R Ba6 Nd8 Nc3 N8c6 Ke4 Rc8 Kd3 Bh3 Ne4 Na5 Qg2 Rd8 Qh1 Ne6+ Ke2 Bg2 Qc6 Ned4+ Kd3 Bh3 Rfe3 Nfg7 Qa8 Rg3 Ned2 Be6 Qhc6 Kf8 Rf3 Bg8 Ne4 Rg4 Kd2 Kf7 Ke3 Rfg1 Kf2 Ngf5 Qac8 Rh1 Q8a8 Rf1+
1nR3q1/R2qB1br/R6n/1R1knN1b/p2NbQP1/1p4r1/3RKB2/q4BN1 b - - 0 1 illegal: No proof kernel
qRb1BN2/3nr3/N1qk3P/2Nbp1QK/2nrNqn1/2R1B3/2p2N2/RB4b1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 f4 c5 d4 g5 h4 b5 a4 e5 d6 c4 a5 b3 h5 b4 f6 b2 a6 b3 h6 c3 a7 g3 Kf3 g2 Kg4 Be7 f7 Qc7 f8R Rh7 f5 Qb6 d5 Na6 f6 Nc5 f7 Qc6 Nd2 b1N Ne4 b2 Nh3 g1Q+ Kh5 g4 Qd2 g3 Qg5 g2 Nhf2 Na3 Bd3 b1B Be3 Qc1 Rh3 Ba2 Bb1 g1Q Re8 Rb8 a8B c2 Bb7 Qgf1 Ba6 Qfe1 Bb5 Nc4 Ba4 Rb4 Rf3 Bb7 Rb8 Qh1+ Rh3 Bc8 f8N+ Kd8 d7 Kc7 d8N Nd7 Bb5 Bc5 Nb7 Re7 Ba4 Bd4 Nbc5 Bb3 Bd2 Qg2 Rc3 Qcf1 Be3 Ngf6+ Kh4 Ng4 Kh5 Qa8 Bc6 Qf3 Bb5 Qf4 Ba4 Qg2 d6+ Kd8 Na6 Ke8 Nec5 Qgc6 Nce4 Kf7 Ng6 Ke6 Nf8+ Kd5 Bb5 Ndb6 d7 Ba2 d8N Nd7 Nf6+ Kd6 Nde6 Bb3 Nec5 Ba2 Bc1 Be3 Nh3 Bg1 Nf2 Na3 Be3 Bd5 Bd3 Rc4 Bg6 Rd4 Be8 Nc4 N6e4+
Kbn1N1q1/RB6/2p1q1pn/q1BR4/1BR2b1R/4rb1R/3QP1k1/3NnNr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 f5 h4 a5 h5 f3 Ke3 f4+ Ke4 g6 b6 g3 b7 f2 h6 a4 b5 a3 h7 g2 b6 f3 Be3 a2 Qd2 Bh3 Nc3 Qf6 Nd1 Bd7 Rh4 Nc6 b8B Ra3 b7 Na7 Rc1 a1B Rc4 Nc8 Ba7 Nh6 b8N Qg7 Na6 Bg4 Bc5+ Kd7 d6 Ke6 d7 Bd6 d8R Qg8 Bg5 Bf4 Rd7 Rb3 Bge7 c6 Ra7 Bh5 Bf8 Kf6 d5 Kg5 d6 Be5 d7 Bb8 d8R Re3+ Kd4 Qe6 Rh3 Kg4 Nc7 Qg8 Rh4+ Kg3 Rd5 Bg4 Ne8 Bh5 Nh3 g1N Ng5 Qe6 Bg2 f1Q Bh3 f2 Nf3 Qe1 Nh2 f1Q Bb4 Qff2 Kc5 Bf3 Be7 Rf8 h8R Qg8 Be6 Kg2 Nf1 Qg3 Bf5 Qg4 Bd3 Q4e6 Rh7 Nd6 Kb6 Nc8+ Kb7 Rf5 Ka8 Rg5 Nf2 Qa1 Nd1 Qa5 Bec5 Be4 Rdd7 Nf3 Rd5 Ne1 Rh3 Bf3 Rh8 Nf7 R8h4 Nh6 Re4 Qa2 Ba6 Qa5 Rc4 Kg1 Nc3 Kf2 Bb7 Rg1 Nd1+ Kg2 Qa2 Qgf7 Qb2 Qg8 Qd2
R4q2/1n1BP2K/2R1bQ1b/3rq2r/p3N3/N1pq1NBN/1R1B4/rN1n2bk b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 e5+ Kd7 h5 a5 d6 Ke6 d7 Kd5 b6 Ke4 h6 c4 h7 f3 Kg3 c3 b7 f2 d5 Na6 b8R Bb7 e6 Nc7 e7 Nh6 d6 Bd5 b5 Nf7 b6 Bh6 b7 Be6 Bb5 f1Q Nf3 Qd3 Qf1 Nd5 Bd2 Qf8 d8N Ne3 d7 Nd1 Nc6 Nd6 d8N a4 Na5 Ra7 Nc4 Ra5 Bd7 Rd5 Ra8 Qg7 b8B Nb7 Ra2 f4+ Kh2 Qgd4 Nf7 Qe5 Nca3 g3+ Kg2 g4 Rb2 Rc8 h8N Rcc5 Ng6 Ra5 Kg1 g2 Kh2 g1B+ Kg2 g3 N7g5+ Kf5 Kh3 g2 Kh4 Rac5 Nh2 f3 Kh5 f2 Nhf3 Ra5 Nf4 Rab5 Qe1 f1Q Nfh3 Ra5 Qf2 Rac5 Nf7 Ke4+ Kg6 Ra5 Kh7 Rac5 Nd4 Rb5 Qf6 Qff4 Nf5 Kf3 Nd6 Ra5 Ne4 Rab5 Nfg3 Ra5 Ne2 Qff5+ Qg6 Qf8 Qf6+ Qf5+ Qg6 Rd4 Nf6 Bhe3 Nf2 Bc4 Rb6 Rc5 Bc1 Be6 Rh4 Bh6 Rh2 Rh4 Rd6 Rh5 Rc6 Rd5 Bg3 Qe5 Nh3 Bf2 Ne4 g1R Qg7 Nb2 Qf6+ Rf5 Bcf4 Rh5 Rg2 Rd1 Rh2 Bg1 Nd4+ Kg4 Nd2 Ra1 Ndb1 Nd1 Ndb5 Kf3 Rb2 Rc5 Bd2+ Kg2 Nd4 Kh1 Nf3 Ra5 Bge1 Rd5 Bg3
B3RR2/K2pNb2/1N1N2k1/1P1pr1b1/1Q2qqRr/nq3NnB/1b1N4/2B3n1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c6 h4 gxh4 d5 cxd5 axb5 Qb6 Bd2 Qc7 Bc1 Qd8 Ke2 Kf7 Ke3 e5 b4 h5 f4 a5 g4 a4 c4 a3 c5 h3 b6 e4 Kd4 a2 c6 h4 f6 e3 c7 e2 b7 e1B f5 h2 g5 h3 g6+ Ke8 g7 Kf7 Qa4 Rh5 Ba6 Bd2 Nf3 Nh6 Re1 h1Q Re8 Bg5 Nbd2 h2 Bb5 Rh3 Bc6 Qd1 Rb1 h1Q Qa3 Na6 b8N Nc5 Na6 Na4 Nc5 a1N Ne4 Ba6 c8N Nc3 Nb6 Bd3 b5 Qb3 Qb4 Qb8 Bb7 Ra3 Ba8 Rh4 Rb2 Qf4 Ra2 Kg8 f7+ Kh7 f6 Kg6 g8B Bg7 Kc5 Ne2 f8R Ng1 f7 Nc2 Nd6 Bb2 Ra1 Ra6 Ra4 Nf5 Bh7+ Kf6 Bg6 Ng3 Bf5 Na3 Bh3 Kg6 Rg8+ Kf6 f8N Bg6 Rh8 Bf7 Ng6 Qg2 Ne7 Qe2 Rhf8 Qee4 Bb7 Ra8 Bc6 Rb8 Ba8 Rd8 Nbc4 Kg7 Kb6 Kh6 Ka7 Kh5 Ng8 Kg6 Nb6 Rc8 Re7 Rc3 Ree8 Re3 Ne7+ Kh5 Rb8 Qd4 Nc6 Qf5 Rbe8 Kg6 Qa5 Re5 Rc4 Qdd3 Rg4 Qde4 Qb4 Qff4 Ne7+
4RBn1/p3N1qn/2qbN3/4qb2/1p1P4/nr3RBB/Bkr1R3/1QbK1B1N b - - 0 1 illegal: No possible last move
1Bnn4/1Nr1Rb2/1R1qn1Nr/2r3B1/4p2n/1NNpPNQ1/1BR2b1K/1k1n4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 cxd4 Bh3 Nc6 fxg5 Nf6 g6 Ng8 g5 Nb8 Bg4 hxg4 Kf2 d5 Kg2 Kd7 h4 Ke6 c4 Kf5 b4 Ke4 g7 a5 b6 e5 b7 f5 b5 d3 g6 d2 c5 d4 h5 g3 b6 f4 h6 a4 c6 f3+ Kf1 f2 Kg2 f1R c7 a3 h7 a2 Rh6 Be6 c8N Bf7 Qb3 d1N Bg5 Ra5 Nf3 Nc6 b8B Qd6 b7 Nge7 g8N Nd8 g7 Rc5 Rh2 Rh1 Nh6 Rc7 Kh3 g2 g8N g1N+ Kg3 Rc5 Nf5 Bg7 Rf2 Rh6 e3 Bf6 Nc3+ Kd3 Rc2 e4+ Kg2 Be5 Qe6 Rc7 Qg6 Bg3 Rb1 a1N Rb6 Nb3 Qg7 Qf4 Ncd6 Nc8 Nge7 Bf2 Ng6 Nc5 Qe5 Re8 h8B Nce6 Bhf6 Rc5 Bg7 Re7 Bh8 Qg4+ Qg3 Rec7 Bhf6 Qf4 Bh8 Nh3 Kh2 Qe5 Nd2 Ng1+ Nfh4 Qd5 Nb3 Qc6 Nc4 Qd6 Nca5 Nh3 Nf3 Nhf4+ Qh3 Ng2+ Be5 Nh4 Qg3 Nf8 Bh8 Qe5 Re6 Qd6 Re7 Nfe6 Ba7 Rd5 b8R Rdc5 Rb6 Be1 Rg2 Bf2 Bb8 Kc2 Nb7 d3 Na2 Kb1 Bb2 Be1 Rc2 Bf2 Nc3+
Nb2rBr1/k2NnB2/bRnr4/nPq5/2QR4/N5R1/pB1p1N1K/n1N1n3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 Kd7 f4 Kc7 Kf2 Kb6 Kg2 a5 b4 e5 c5+ Ka7 f6 h5 f7 h3+ Kg3 e4 g5 d3 c6 d2 g6 e3 g7 d4 f5 e2 c7 e1N f6 h2 Qa4 d1N Ne2 d3 Nbc3 d2 Bb2 Nc2 Nb1 Ba6 Nc1 Qe7 Ra3 Nc6 Bc4 h4+ Kg2 Qe5 Rg3 Qc5 Na3 Bd6 f8B Na1 f7 Nge7 g8N Re8 Nf6 Rg8 Ng4 Ne3+ Kh3 Bf4 Nf2 Be5 Rhg1 h1N Kh2 h3 Be6 Nc4 c8N+ Kb7 b6 Bb8 Qc2 a4 b5 N4a5 Qc4 Ka8 Re1 Kb7 Re4 Ka8 Nd1 Nf2 Rd4 Nd3 Nf2 Ne1 Bd5 Bc7 b7+ Kb8 Nb6 Ka7 Na8 Bb8 Nc2 a3 Be6 a2 Na3 Bf4 b8R Be5 Kh1 h2 Rb6 Bb8 Bd5 Nec2 Kg2 h1R Be6 Rg1+ Kh2 Rg6 Bh6 Rf6 f8N Ne1 Bf7 Re6 Nd7 Rd6 Rb3 Rgg6 Bf8 Rg8 Rg3
Rr2NKB1/1Q1RN3/2R1qPbp/N1Bn2b1/5n2/1p4nn/1n3r2/R3kBRr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 g4 e5+ d6 b5 a4 b3 f3 Kg3 d4 Kf2 a5 e4 d5 b4 f4 h3 f6 h2 f7 e3 a6 h6 f5 b2 a7 b3 g5 e2 g6 e1N g7 Nf3 Nc3 b1R Nge2 Nf6 g8B Nc6 Ba3 Qe7 Nf4 Qe6 Nb5 Na5 Ng6 Be7 f8R Ng5 Qf3+ Ke1 Rg1 Rb8 a8R h1N Re8 c6 Nc7 Ng3 Qh1 Bd8 d7 Nc4 d6 Nd5 Ne7 Nh3 Rf8 Nb2 Rf6 Rh7 Ne8 Rf7 Qg2 Ba6 Rg6 Bd3 Qh1 Ba5 d8R Bd2 d7 Bg5 Qf3 Qe3+ Kd6 c5 Qe4 c4 Bc5 c3 Qb4 Rf8 Qb7 c2 Re6 c1N f6 Bg6 Re4 Rf7 Rc4 Rg7 Rc2 Nce2 Rc3 Be4 Ke6 Rg6 Kf7 Nef4 Kf8 Qe2 Ba3 Bc2 Rc6 Qe6 Bc5 Rc1 Rdc8 Rg7 d8N Bg6 Rd6 Rd1 Ndc6 Rb1 Na5 Rc1 Nf5 Rc7 Rd7 Rc6 Bd4 Rc2 Rc6 Rh2 Ne7 Rh1 Ra3 Rc2 Bc5 Rf2 Ra1+
Q3N3/n4RK1/1np1b1N1/n2p1R2/1P1BRn2/RB1b3q/r1Rnr3/2b2NkB b - - 0 1 illegal: No proof kernel
1Nr2B2/1qrPb3/rR2kNR1/2R2Nn1/1B1K1p2/r2Bp3/n1b3rQ/1n2BB2 b - - 0 1 illegal: No proof kernel
3B3K/1Nr2BB1/R4pp1/5B1b/2N1Q2b/1N2nRn1/3RrnkP/Brbn2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 c5 b4 a5 b6 f3 Ke3 f2 Kf4 c4 b5 c3 b7 g6 b6 g3 Nd2 a4 Qf3 a3 Nb3 g2 Bd3 f1N Bb2 Nf6 Kg5 Na6 b8B+ Nc7 b7 a2 e5+ Kd7 e6+ Kd6 e7 c2 e8B c1B+ Qe3 Ng3 Bf5 Rh7 Nf3 g1N Nfd2 N1e2 Qe4 Be7 Rf1 Nc3 Rf3 Nd1 Ba7 Qd7 b8R Bb7 Rd8 Ng4+ Kf4 Ngf2 Bb6 Bf8 Kg5 Rg7 Kh6 Be7 Ba7 Bh4 Bc3 Rc8 Bb8 Rg8 Kh7 f6+ Bf7 Rg7+ Kh8 Ba6 Ba7 Be2 Bb6 Rb8 Bba5 Rb5 Bab4+ Rc5 Be8 Re7 Bf7 Na6 Ba3 Nb4 Bcb2 Nc2 Nc4+ Kc7 Bb4 Nce3 Bd2 Kb7 d6+ Rc6 d5 Rc7 Bbc3 Qb5 d7 Qb6 Bb2 Qd4 Bb4 Re8+ Bf8 Qc5 Rf4 Bh5 Rf3 Re5 Bg7 Re6 Rb1 a1R Ra8 Re7 d8B Qd4 Bc3 Qa7 Rb2 Rb1 Rd2 Qd4 Qc2 Re5 d6 Kc6 d7 Re4 Be8 Kd5 Ba1 Re6 Qd3 Re7 Qe2 Re4 Ra6 Re6 Bg4 Ke4 Bf7 Qc3 Rd5 Qe1 Rd2 Qg1 Be7 Re5 d8N Re6 Qf1 Nd5 Qe1+ Ne2 Rc3 Kf4 Rcd3 Ng3 Bf5 Re3 Nb7 Kf3 Qe2+ Kg2 Bd8 Ree7 Qg4 Re2 Rf3 N5e3 Qe4
4R2b/2Nr3r/Pn1r3B/2b2np1/3kB1Bn/1BRN1qN1/bK2pBR1/2nQ4 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Kd2 Kf7 f4 Kf6 h4 g5 a4 b5 c4 d5 Kc2 e5 a5 g3 h5 b3+ Kb2 g2 a6 b4 c6 d4 h6 d3 h7 e4 c5 e3 c7 e2 c6 d2 Rh3 Qe7 Nc3 Qd7 Nf3 g1B Bg2 Bd4 Ne5 Qd5 Nd3 Be6 c8B Qf3 c7 Nh6 Ra3 Bg7 Rg3 Ra7 Bb7 Rd8 c8B Bh8 Be4 Nd7 Bd5 Bc5 Ne4+ Kg7 Bc4 Nb6 f6+ Kg6 Rg4 Rdd7 Ng3 Nf5 Bd5 Nh4 f5+ Kf7 Be4 Rd6 Bd7 Rb7 Ba4 Rbd7 Bh3 Bc4 Nh1 Be6 Rg2 Bc4 Bg4 Be6 Kb1 b2 Rc3 Ba2+ Kc2 b1R Ng3 Ra1 Ba3 b3+ Kb2 Rc1 Bb4 Rb1+ Ka3 b2 Bb3+ Ke8 f7+ Ke7 f8N Kf6 Ne6 Rc1 Qe1 d1N Nc7 Ne3 Qd1 b1N+ Kb2 Nd2 Ba5 Bg7 h8R Ra1 Nf4 Ke5 f6 Nef5 f7 Kd4 Re8 Bh8 f8B Rh7 Nd3 Rdd7 Bc2 Nb3 Bh6 Nc1 Bb3 Bb1 Rc2 Ra3 Be1 Ba2 Rc3 Rd6 Bc4 Rb3+ Ka1 Rb2 Bb3 Rd2 Rg1 Rdd7 Nf4 Rd3 Rg2 Ke3 Kb2 Kd4 Ra8 Ke5 Rg8 R3d6 Nd3+ Kd4 Rb8 Rf6 Re8 Rfd6 Bf2+
1bN2k2/1Br1RB1p/8/Kn2n3/2bNB1Qn/2P2p1N/RbBbq1rR/2B1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 fxe5 cxd4 Kd2 a5 g4 d5 b4 f5 e4 a3 g6 d3 Kc3 d2 b5 a4 e6 a2 e7 a3 Kb4 d4 e5 f4 b6 d3 g7 Nd7 b7 Nc5 b8R Ra7 g5 Nh6 g8N Rc7 g6 Ba6 g7 Nf5 Bg2 Nh4 Qg4 d1R Be4 d2 Ka5 f3 Nh3 Re1 Rh2 d1N Nc3 Nd3 Nb5 Nc3 Nd4 Bc4 Rb7 Nb5 Ra7 Qd6 c3 Qe6 Nh6 Rg8 Nhf5 Qh6 Bb7 Qe3 Be4 Qe2 Bb7 Rh8 g8B Bg7 Bgd5 Rg8 Be4 Bf8 Rb1 a1B Rb2 a2 Rd2 Rg5 Rc2 Kf7 e8B+ Kg8 e6 Bb2 e7 a1B Rd2 Ne5 Bg6 Bh6 e8B Ba3 Bef7+ Kf8 Ne7 Bd6 Ra2 Bb2 Bgf5 Rg8 Nc8 Bd2 Qf4 Rg2 Qg4 Re7 Bc2 Bb8 Bfe4 Rc7 Ra6 Rd1 Re6 Re1 Re7
4R3/1q1nqQ2/1pbnrr2/1b2r1B1/3kB3/1RN1rBp1/rP1NBB2/1KRN4 b - - 0 1 illegal: No extended proof kernel
2BR1nN1/1nK2RBP/q1p1B2n/1QbNBr1r/2nq2bB/3np3/N6k/R7 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 a4 e5+ d6 g5 d4+ Ke4 h4 b5 f4 g3 h5 g2 a5 b3 a6 b2 d5 b4 h6 g4 h7 c6 a7 b3 f6 g3 f7 Be6 f5 Qc8 Kb6 Nh6 d7 Qa6+ Kc7 Bc5 d8R Rf8 f6 Nd7 d6 Bg4 Ne2 Kf3 Bf4 g1N Nbc3 b1N Qd5+ e4 Nc1 b2 N1a2 g2 Bc4 Na3 Be5 Nh3 Rhf1+ Nf2 Bb3 Rb8 a8B b1N Bb7 g1Q Bc8 Kg2 Qc4 e3 Nd5 Nd3 Qb5 Nc4 Rf3 Na5 Rf1 Nb6 d7 Nb7 Rf3 Qd1 Rf4 Rg8 f8N Kh2 f7 Nd2 Ng6 Rf8 Nge7 Ndc4 Ng8 Ra8 Re8 Rb8 d8B Nd7 Bh4 Qd2 Rd8 Qc3 Bef6 Qd4 Bg7 Re8 f8B Re5 Bgf6 Rh5 B8g7 Nf8 Be5 Nbd6 Qa5 Rb5 Qa4 Ra5 Qb5 Nb7 Rf7+ Qf4 Ndc3 Ba3 Qd5 Ncd6 Bef6 Qd4 Qg5 Rb5 Bbe6 Nc4 Qc5 Bb4 Qb6 Rbg5 Nd5 Rf5 Qb5 Bc5 Be5+
R1B1b1R1/2BQq3/1R3r2/b2Nb1qq/3N1B2/4q1R1/pp3P1n/1RNrknK1 b - - 0 1 illegal: No proof kernel
3R4/1Nb3K1/Rq2q3/2NB4/qNb2rpR/1NBp1nP1/6n1/Q1qbrkNB b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g3 b5 axb5 f5 exf5 h4 Qf3 h3 Qg2 hxg2 Kd2 Kf7 Kd3 Kf6 Ke4 e5 f4 a5 h4 g5 b4 g4 c4 a4 c5 d3 h5 d6 b6 d2 b5 d1B h6 a3 c6 a2 h7 Qe8 b7 Bb3 b6 Qd7 c7 Qa4+ Bc4 Be6 c8B Nh6 Bb2 Nd7 b8N Bd1 b7 Rg8 Na6 d5+ Kd3 d4 Ke4 d3 b8R Bd6 h8Q+ Rg7 Bb7 Bc7 Nb4 Ra5 Bb3 Bc4 Rh4 Ra8 Rg8 Re8 Bc3 Re6 Rd8 Re7 Ne2 g1Q Nd2 Qb6 Ng1 Re6 Qg8 Rf7 Qg7+ Ke7 f6+ Kd6 f5 Kc5 Qh8 Rf8 f7 Re7 f6 Nf5 Qh7 Ne3 Qg7 Ng2 Kf5 e4 Kg6 e3 Qh8 e2 Kg7 e1Q Bf3 Ba6 Bbd5 Qee6 Bfe4 Bc4 Nb3+ Kb5 Bf3 Ne5 Bfe4 Nf4 Bh1 Nf3 Qh5 Ng2 Qe5 Qf5 Qd4 Re1 Qe5 Qfe6 Qd4 Rh8 f8N Rh5 f7 Rf5 Nd7 Rf4 Nc1 Ka5 f8N Kb5 Nc5 Ka5 Rb1 a1Q Nfd7 Kb5 N1b3 Qb2 Ba8 Qc2 Nb7 Qc1 Na2 Kc6 Ra1 Kb5 Qe5+ Kc6 Qf6 Kd5 Nb4+ Ke4 Ndc5+ Ke3 Ra3 Kf2 Ra1 Qab5 Ra6 Kf1 Nd6 Rfe4 Bd5 Rf4 Ndb7 Qbe8 Bd2 Qeb5 Qa1 Qa4 Bc3
2qRBqn1/2b1n2K/BkQrq1B1/2rR1Bp1/1B3P2/1Nnp1N2/4bN2/4n2R b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 d5 Ke3 Kd7 Kf4 Kc7 Kg5 b5 Kg6 e5 a4 e4 f4 d4 c4 b3 h4 e3 h5 g3 a5 b2 f6 b4 f7 b3 h6 e2 h7 e1N a6 g2 c6 Bc5 f8R Ba3 c5 Bh3 a7 Na6 Qc2 Rb8 a8B Qe7 Bd3 Qd7 Rd8 Nb4 Nd2 b1Q Ngf3 b2 Nb3 Qc8 Bd2 Nd5 Bb4 Qa2 Rd1 b1N Bb7 Nbc3 Bba6 Rb5 Bf5 Kb8 c7+ Ka7 c6 Bg4 Bd7 g1Q Be8 Rc5 Bd3 Qa6 c8B Kb6 Bcf5 Qc8 c7 Qe3 Qg2 Qe7 Bc2 Qf8 Bb1 Qb8 c8B Qe2 Ba6 Qc8 Nfd2 Qee7 Ne4 Be2 Nf2 Qe4 Qg5 Qee6+ Qf6 Nh6 Bbe4 Rg8 h8N Ne7+ Kh7 g5 Bb1 Rg6 Nf7 Nhg8 Ne5 Bb2 Bbe4 Ba1 Nf3 d3 Rc1 Nb5 Rc4 Be5 Rcd4 Nc3 R4d7 Bc7 Rd5 Qc6 Qd6 Rf6 Qd7 Rd6 Qe6 Q6d7 Qf6 Qe6 Bfg6 Qe5 Bef5 Qe4 Qe6 Qe3 Qd7 Qe6 Qc6+
r1r1qNn1/4r1q1/1R2QP2/1nR1NNkr/1pB2B1R/1pN2b2/1n4Bb/1NK5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 Kf6 a4 b5 g4 h5 f4 e5 g5+ Kf7 g6+ Kf6 a5 c5 a6 c4 d6 e4 a7 b3 g7 b4 d5 h3 d7 h4 d6 h2 Ne2 h3 Ra6 Rh5 Rb6 Rh8 Qe1 Qe8 d8N Nc6 d7 Bb7 Nf7 Bd6 d8R Nd4 Nec3 Nb5 Rc8 e3+ Kd1 Bg2 Ne5 e2+ Kd2 Be4 Rc5 Bf3 Bb2 Rc8 a8B Rh5 Kc1 Rh8 Rg1 h1R Rg4 h2 Rh4 Rh5 Bc6 Rg1 Be4 h1Q Bd3 Rgg5 Bg2 Qg1 Ba1 Rh8 Bb2 Rgh5 Ba1 Ke7 f6+ Ke6 f7 Kf6 f5 Kg5 f8N Ra8 Na4 c3 f6 c2 Bc4 Rc8 Nac3 Bb8 Kd2 c1N Bb2 Nd3 Bc1 Nh6 g8N Nb2 Ne7 Ng8 Nf5 Bd6 Qf1 e1R Qe2 R8h7 Qe4 Ra7 Qd5 Raa8 Qe6 Nd1 Bb2 Bb8 Kc1 Bc7 Ned7 Bh2 Ne5 Re4 Nd5 Re3 Bc3 Nb2+ Be1 Qf2 Ndc3 Qg3 Nc6 Qc7 Ne5 Qg7 Bg3 Rd3 Qc6 Rd7 Qe6 Re7 Bf4+
2rNR1bq/krb2N2/1BB2PBp/7p/3b2R1/2n3RB/3r3q/KN2BnQr b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 exf5 g6 h5 gxh5 axb5 Ba6 Bd3 Bb7 Bf1 Bc8 Kd2 e5 c4 a5 Kc2 d5 b4 Kd7 Kb2 Kc7 g4 Kb7 f4 h6 b6 d3 g5 e4 g6 a4 g7 d2 f6 e3 f7 d4 c5 d3 f5 e2 c6+ Ka6 b5+ Ka5 f6 e1B b7 Kb6 c7 Bf2 Rh4 Rh7 Rg4 Be6 c8B Nd7 b8N Nc5 Bd7 Ka7 Nf3 Nb3 Bc6 Bd6 f8B Bc7 Ra3 Ne7 g8B Nd5 Ne5 Nc3 Bh3 Bd4 Qg1 d1R Bf7 d2 Bg6 Bg8 Nf7 Re1 Bd6 d1R Bg3 Nd2 Ka1 Nf1 Bd2 Qf8 Rb3 a3 Bh4 Re2 Bhe1 a2 Ra3+ Na4+ Bc3 Red2 Rb3 Qd6 Ra3 Qh2 Rb3 Bdb6 Ba5 Bf2 Rbg3 Nc3 Bd7 Bd4 b6+ Kb7 Nc6 Rc8 Ncd8+ Ka8 b7+ Ka7 b8R Rg7 Bc2 Rc1 Kb2 Rh7 Bc6 a1Q+ Kb3 Qa4+ Kb2 Qb4+ Ka1 Qf8 Bg6 Qg7 Rb5 Qh8 Re5 Bcb6 Nd6 Rb7 Re8 Bc7 N6f7 Rcd1 Rd3 Rg2 Rdg3 Rdd2 Qh1 Rg1 Qg2 Rh1 Qf2 Rb5 Qg1 Rb7 Bb6+
1qnnRq2/1Bq1r1kB/5pRN/4Q2K/2b1N1p1/1PB1b1NR/r3B2B/n3q3 b - - 0 1 illegal: No possible last move, all moves rejected
B5B1/1r1kBpq1/nnNn2Q1/1q3Bb1/5rnN/3bb1B1/1R2pN1P/1R4KR b - - 0 1 illegal: No proof kernel
3RBr2/3Rp3/BB1p1N2/Bb2n3/k2bqbqn/1rB2P2/QR1N4/2NK1n1n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 h5 g4 a5 b4 d6 b6 Kd7 b7 Kc6 g5 a4 g6 h3 c5 d3 b5+ Kd5 b6 Kc4 c6 Kb5 c7 a3 f3 h4 g7 h2 f6 a2 f7 h3 Bd2 Qd7 Ba5 Nh6 g8N Nf5 Nd2 Nh4 Qb1+ Ka4 Nf6 Bh6 f8B Bf4 Kd1 Qg4 Ne2 Bd7 c8B Nc6 b8R Ne5 b7 Bb5 Bg7 Rf8 Bd7 Ra7 Rg1 h1N Be8 h2 Rg2 Ng3 Rd8 h1N b8B Rb7 Nc1 Rb6 Be2 Nf1 Ba7 Rb8 B7b6 Rb7 Nde4 d2 Rd7 Bc6 Ba6 Bb5 Qd3 Rb8 Rb1 a1B Rb2 Rb7 Qb1 Rb8 Rc2 Bb2 Rc8 Bd4 Rcd8 Rc8 Re2 Rc3 Re3 Ra3 Rc3 Rb3 Rc2 Bd3 Rb2 Bb5 Bh8 Nc6 Ng8 Bde3 Bhc3 Ne5 Kc2 Bd4 Ngf6 Nc4 Kd3 d1Q+ Nd2 Qe2+ Kc2 Qe4+ Kd1 Ne5 Qa2+
1rRB4/1NN1pBP1/1QBkN2n/7r/n2Kbbqr/q1pN1Rq1/2q5/N2R4 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kd7 Ke3 a5 f4 h5 d4 c5 b4 h4 g4 a4 f5 c3 d5 a3 g6 h3 d6 c4 g7 a2 f6 h2 f7 c2 g5 c3 g6 Rh4 b6 Bb7 b5 Qc7 Na3 Nf6 g8B Qd8 Kd4 Bd5 b7 Bc6 b6 Nh7 Ne2 e3+ Nf4 e2 Be3 c1Q Bg2 e1R Rf1 h1Q Qb3 Qe8 Rf3 Qh3 Nc2 Rh5 Nd3 Na6 b8R Nf6 b7 Ng4 Rc8 Nc5 Qb6 Bh6 g7 Be4 b8N+ Ke6 Na6 Rb8 Bf2 Rh1 Nc7+ Kd7 Rb1 Qg3 Na1 Qc2 Rd1 Na4 Rf5 Ra8 Qa5 Qb3 f8N+ Kc6 d7 Rf1 d8N+ Kd6 Nfe6 Qb2 Nb3 a1Q Nd5 Bf3 Kc4 Rfh1 Bb6 Qaa3 Na1 Qg6 Kd4 Qc2 Bf7 R1h4 Rf6 Rb8 Nb7+ Kd7 Qa7 Bc1 Bd8 Nh6+ Rf4 Q6g4 Ndc7 Bd5 Be4 Bd2 Rf3 Bf4 Nbc5+ Kd6 Qa5 Bc4 Bc6 Bd5 Qb6 Be4 Nb7+
6b1/nb3p2/P1b1Q1bb/1rR1B1N1/q5k1/1R2rN2/1NN1p3/nN1BKRBb b - - 0 1 illegal: No proof kernel
Rb3R1R/3k2rp/4rp2/1BK2nPN/1NbBR3/3r1bqQ/N2R3r/b2nB3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 e4 a5 d4 h3 b4 c4 g4 f6 d6 a4 d5 h2 e5 c3 e6 c2 e7 f3 Ke3 a3 Kd4 f2 b6 a2 g5 Bb7 b5 Nh6 d7+ Kf7 e8R Qc8 d8N+ Kg7 d6 Qg4+ Re4 Qf3 d7 Qg4 Qf3 Ra7 Be3 c1R Nc3 Na6 Nh3 Nc7 Nc6 Kf7 d8B Qg3 Nb4 Bd6 Nf4 Re1 Nh5 Nd5 Bd3 Bb8 Kc5 f1B Bd4 Ba8 b7 Nf5 b6 Nde3 Bb5 Bc4 Rf1 h1R Rf2 Rf8 Rd2 Rh2 Qf1 Ree2 Qh3 Nd1 Bc7 Rd8 Bf4 Be5 b8R Ke7 b7 Rd6 Rg8 Re3 b8R Re6 Rgc8 Rd3 Rf8 Bc6 Rh8 Kd7 Rbf8 Bb8 Bfe3 Rb7 Bf2 Ra7 Be1 Rb7 Rb1 a1B Nca2 Ke7 Rf4 Bf3 Rb3 Ra7 Ra3 Rd7 Ra8 Rb7 Be8 Kd8 Rg4 Rg7 Re4 Kc8 Bb5+ Kc7 Nc6 Kd7 Ncb4+
k1nB1K2/Rq1B3p/1P1p4/1NNRrbBb/1rr1R2Q/4Rr2/1nN2R2/b2b4 b - - 0 1 illegal: No possible last move, all moves rejected
2nNb3/r1p4p/1k3nNr/4rBR1/NN1R3Q/nNB1r3/1bP2K2/nB1q1R2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 f4 d5 b4 Kd7 g4 a5 e6+ Kd6 b6 Kc6 f5 e3 f6 h3 e7 h2 e8R a4 b7 a3 g5 d4 f7 a2 b5+ Kb6 g6 d3 g7 e2 Kf2 e1N Bh3 d2 Re4 Qd5 Qh5 d1R Ne2 Qd6 Bb2 Rc1 Nd2 Qd7 Ng3 Bb4 f8N Ra7 Bc3 Qg4 Qh4 Ng2 Rf1 h1R Nb3 Qd1 Rd4 Ba3 Bf5 Rh2 Ne4 Bd7 Nec5 Bb2 Ng6 Nf6 g8B Nc6 b8N Ne7 Nc6 Nc8 Nd8 Be8 Bf7 Rh1 Rg1 Ne3 Rg5 Nc4 Rb1 Qh5 Bd5 Rcg1 Rf1 a1N Bg8 Na3 Bc4 Rb7 Bd5 Rg3 Bc4 Ka7 b6+ Kb8 Nc1 Bd7 Qf4 Ra7 b7 Re8 Ba2 Re5 Bb1 Qd1 N1b3 Rh6 Qh4 Rge3 Rgg4 Ra8 Rg5 Ka7 b8N Kb6 Nba6 Ra7 Nb4 Be8 Na4+
K1B1rRB1/PR2nB1b/1bb2k1B/n1N1n3/Rq3n2/5NB1/pp1b4/Q1N4r b - - 0 1 illegal: No proof kernel
8/B3p3/1Rrn4/qrbb2NB/2q1P1NR/1k1b1B1K/2b1pQ2/1NqR1RbR b - - 0 1 illegal: No proof kernel
2rB1r2/RPnB3n/2nB3K/N1p1Q1B1/2br4/b1kb1p2/Rq4p1/1NB1N2R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 a5 e5+ Kc7 d6+ Kb6 d5 g5 h5 a4 e6 f3 Kg3 a3 h6 a2 d7 f2 h7 Ba6 e7 Bg7 e8N Nf6 d6 Rf8 h8R Nh7 Nf3 Bb2 Nbd2 Qf6 Qe1 Nc6 Bh3 f1B Qe5 Bd3 Ne1 Rc8 Rg8 Ba3 d8B+ Rc7 Be7 Rc8 d7 Qh8 Nd6 f4+ Kh2 f3 Kg3 Bc4 Nb7 Bd3 Na5 Bc4 Rb1 a1N Rb2 Nb3 Ra2 Nbd4 Rg7 Ne6 d8B+ Nc7 Nab3 Kb7 b6 Bd3 Rf7 Bac4 Na5+ Ka6 b7 Kb5 b8B Ka4 b5 Kb4 b6 Qf6 Kf2 g3+ Ke3 g2 Bd7 g4 Bd6 Qg7 Kf4 g1R B6e7 g3 Bg5 g2 Kg4 Qf6 Kh5 Qh8 Kh6 Rf1 b7 Rf2 Rf4 Re2 Rf6 Re4 Rg6 Rd4 Rd6 Ne7 Ra6 Nc6 Ra8 Kc3 Ra7 Na8 Bd6 Nc7 Qe6 Qe5 Qe7 Qe2 Qe5 Qf2 Nf1 Qc2 Nd2 Qb2 Nb1+
K2N1R1B/1n2rr1R/B1r2k1R/6pp/1BqR1N1b/Q1b1q3/1Pp1bn2/R2N4 b - - 0 1 illegal: No possible last move
8/1QR1nBr1/1KB5/1P1B2Bp/r2rbn1R/R2qbkp1/1q3pN1/1b1BNN2 b - - 0 1 illegal: No possible last move
2Bb1B2/2QKN1r1/k1R2qn1/pN5q/pqnRRR2/1p1N1bP1/3rB1R1/1n6 b - - 0 1 illegal: No possible last move
N2R1rNB/5q1Q/B1q1NN2/pBp3K1/1qb4n/2Pr1p2/N1kR3b/1nr3R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 g5 dxe5 gxf4 Kf2 Ke7 b4 Ke6 h4 Kf5 e4+ Kg6 h5+ Kg5 h6 d5 b6 f5 b7 c5 b5 a5 e6 d4 e5 d3 e7 d2 e8B g3+ Kf3 g2 h7 Nh6 e6 Nd7 b8N Bg7 e7 Nf6 b6 Qc7 b7 Ne4 Na6 Qc6 b8N Rf8 h8R Be5 Bb2 Be6 Ne2 g1Q Nd4 Bc4 Nd7 Rd8 Nc3 Qh2 Bd3 Qh4 Qb1 d1R Nf6 Rc1 Nc7 Qe1 Na2 Qb4 Rd1 Nc3+ Be4 Bd6 Na8 Bc7 Ng8 Rd7 Kg2 f3+ Kh3 Kf4 Kh4 Ke3 Ne6 f2 Bd3 f1Q Kg5 f4 Be2 Rd6 Bd7 f3 e8N Rd3 Nef6 Nf5 Bc8 Qh3 Ba6 Bh2 Rg1 Kd2 Bf1 Nb5 Be5 Qh7 c3 Nh4 Be2 Rdd8 Qe4 Qhd7 Qh7 Qf7 Bf1 Na3 Be2 Bb3 Beb5 Rd3 Rb1 Kc2 Bd4 Re1 Rd1 Nb1 Nh6 Rb8 Rd8 Bc4 Nhg8 Rc8 Nd5 Rf1 Bh8 Re1 Ndf6 Rb8 Rd7 Rf8 Rd8 Kb3 Rd2 Rc1 Rdd1 Kc2 Rd2+
1Q2n1BR/3qN3/P1BB2NN/bq3R1r/bq2p1B1/2r1nR1p/1pB4b/4K1k1 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 f4 Kf7 a4 Ke6 c4 Kf5 g3 e5 a5 d5 g6 b5 g7 h5 c6 e3 c7 Ke4 g4 e2 a6 d4 f5 b3 c5 b2 g5 d3 c6 h4 f6 b4 f7 b3 g6 h3 Ra5 Qd7 Nf3 Nf6 g8N Bd6 f8R Ng4 g7 Rh5 Bg2 Ne3 Nh6 Qe8 g8B Nd7 Rf5 Nf6 Rf1 Bd7 c8B Bc7 Bb7 Rc8 Nh4+ Kd4 R1f3 e4 Ng6 Bh2 c7 Ba4 Nc3 b1Q Nd5 Qb5 Bc6 Ne8 Nde7 b2 Qb3 d2+ Kf2 d1Q Bf1 Qdd3 Ke1 Qa1 Rf8 Qa3 Bd2 Qd6 Bb4 Qdc4 Ba3 Qd7 Bd6 Qcc5 R8f7 Qcb6 Rh7 Q6c5 Rh8 Qbb4+ Kf2 e1B+ Ke2 Qcb6 Raf5 Bc3 Kf2 Q4b5 Bfc4 Ba5 Bd3 Qb4 Bc2 Q6b5 Bg3 Rb8 c8B Ra8 B8b7 Rc8 Bd6 Rc7 Bcd5 Rc8 Bde6 Rc3 Bc6 Nf1 Bf4 Qbb7 Bc7 Qa3 Qb5 Qb4 R5f4 Qb6 Ke1 Qb8 Rf2 Ke3 Bg4 Qb6 Rf7 Q6c5 R2f6 Qcc4 Qb8 Qcb5 Bf5 Kf3 Bg4+ Kg2 Bd6 Kg1 Rf3 Ne3 R7f5
2q2R1r/k4KP1/2p4q/2bB1bNr/1p2p3/R2nB2R/2N1N1BN/1nr1Nq1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 b5 Kd4 h5 Ke5 h3 g4 h4 a4 b3 f4 e6 d4 b2 d6 Kc6 d7 Kb7 f6 h2 a5 b4 a6+ Kb6 a7 h3 g5 Qe8 d8N Qc6 f7 Qd7 g6 Ne7 Kf6 e5 f5 e4 d5 Bh6 f8R Be3 d6 Bc5 g7 Rh5 Nc6 Rh6+ Kf7 Rh4 f6 Rh7 Nd4 Na6 Nge2 Qc6 d7 Qb7 d8N Bf5 Bg2 Rh4 Nd2 b1R N4f3 Nd5 Nc6 Rh5 Ncd4 Qc8 Ra3 Nc3 Nf1 Ra1 Qe1 Nb1 Nc2 Rb8 a8B Ka7 Bd5 c6 Be3 Ra8 Rg1 h1Q N1h2 Rb8 Qh4 Ra8 Rd1 Qf1 Rdd3 Rb8 Nfe1 Ra8 Nhf3 h2 Qh3 h1Q Nh2 Qf4 Qf3 Qh6 Qf1 Qg1 Rdb3 Qf2 Qh1 Qf3 Bg5 Qf1 Rh3 Nc3 Be3 Rc1 Kg8 Nb1 f7 Qhe6 Rd8 Qg6 f8N Qh6 Kf7 Bb6 Ra1 Qb8 Na3 Nc5 Nh7 Nd3 Ng5 Bc5 Rh8 Qb6 Nac2+ Qa6 Ra3 Re8 Rb3 Qc8 Rg8 Re5 Rd8 Re8 Rc3 Rg8 Rf8 Rh8 Ra3+
1r1BK3/RB2p3/R1R2Q1r/p5PB/1q2b3/4n1pn/1NRRnbNN/2bq2k1 b - - 0 1 illegal: No proof kernel
r1B1b3/Bp1k1B2/r2qN3/qP2b1QR/1p2R3/3RnN1p/BnB3N1/1K2nq2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 c5 hxg5 Nc6 d4 cxd4 b5 Nb8 Qd2 Bg7 Qc3 Bf8 Qb4 axb4 Kd2 d5 f4 e5 c4 h5 Kc2 e4 g4 h4 a4 e3 g6 e2 g5 e1Q f6 Ra6 c5 Qe2+ Nd2 d3+ Kb1 d4 c6 Rh6 f7+ Ke7 f5 Rb6 a5 Qe1 a6 Qe8 c7 Qf2 f6+ Ke6 a7 Kd6 a8Q Kd7 g7 Rh5 g6 Rh8 Ne2 Na6 Nf3 d2 Nf4 d1Q Ra3 d3 Ng2 d2 Rd3+ Bd6 f8R Nh6 g8B Ng4 g7 Nc5 Ba2 Ra6 g8B Ne3 f7 Qfe1 Be2 Qf1 Qb8 Qe5 Re8 Qa4 Bd1 Qa5 Bc2 d1N Rh3 Qd4 Re4 Nb2 Rh2 Be5 f8N+ Kd6 Baf7 Bd7 Ne6 Be8 Qa7 Kd7 Rh3 Nb3 Qc5 Qd6 Qd5 Na1 Qc5 Bg7 Qg5 Be5 Rh2 Ned1 Be3 h3 Ba7 Bg7 Rh4 Be5 Rh5 Ne3+ Nfe1 Qe2 Nf3 Qf2 Rh1 Qe2 Re1 Qf1 Ba4 Nac2 Bb3 Ned1 Re4 Ne1 Bc2 Ne3 Ned4 Rb6 Ba2 Ra6 Ne6 Bg6 Bf7 Ra8 Bg8 Be8 Bf7 Qa3 Ng1 Qa4 Nf3 Qa5 c8B+
4Bn1R/B1k2r2/nr1R3R/1B1bpN1p/n1Nb1RnK/NQ6/p1P1R3/q6n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 d5 f4 Kd7 Kf2 e5 b4 a5 g5 d3 f6 d2 b6 d4 b5 a4 g6 h3 Kg3 h6 b7 h2 g7 a3 f5 d3 f7 a2 f6 Ra6 b6 Kd6 Na3 Qe7 Kh4 Kd7 Nf3 Ra7 Nd4 Ra6 Qf3 d1N Nf5 d2 Qb3 Qd6 Bb5+ Kd8 Be8 Ne7 g8B Nc3 Bh7 d1N Be3 Nf2 Rad1 Qd7 Rd6 Na4 Re1 h1N Re2 h5 Bg8 Bg7 f8R Ng4 Bc4 Rh7 f7 Bh6 Rh8 Bf8 Rh6 Qd1 Bcb5 Qa1 Rd6+ Bd7 Bg1 Bh6 f8R Rf7 Bd4 Be3 Rhh6 Bg1 Bc5 Bd4 Rfh8 Nbc6 b8N Nb4 b7 Kc7 Ba7 Rb6 Nc6 Be6 b8R Na6 Na5 Bd5 N5c4 Ng6+ Kh3 Nf8 Kh4 Bg1 Rbd8 Bc5 Rdf6 Bd4 Rdd6 N4c5 Ng3 Na4 Rf4 Kb7 Nf5 Kc8 Bbc6 Kc7 Bb5
r1N3n1/4R1Rr/p1bBPp1n/2N2Q1q/1RBn1b1n/1R5K/NnpB3R/6k1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 e4 c5 b4 h5 g4 h3 g5 h2 Kg2 c4 b6 c3 g6 c2 b5 a6 g7 h4 b7 f6 e5+ Kc7 d6+ Kb6 d5 Kc5 b6 Bg4 e6 Rh7 d7 Qe8 d8N Nc6 b8B Bd6 b7 Qh5 Bc4 Nge7 Qf3 Kd4 g8R Be5 Rg7 Ng8 d6 h3+ Kf1 Bf5 d7 Be4 Ra3 Bc7 Qg4 f3 Bd2 f2 Nf7 Bf4 Nc3 Bf3 d8R+ Bd5 Ke2 f1N Kf2 Ne3 Re8 Nf5 Re7 Nfh6 Na2 Ke4 Bc7 Nd4 b8R Bb7 Nf3 Bc6 Bb3 Kd3 N3e5+ Ke4 Nd7 Kd3 Ra1 h1N+ Kf1 h2 Bc4+ Ke4 Kg2 Ng3 Rh1 Ngf5 Rab3 Nh4+ Kh3 Nb5 Rhb1 Nd4 R8b4 h1N Rg1 Ra7 Rg2 Ra8 Bc3 Ke3 Qf5 Kf3 Nd6 Ke3 Nc8 Kf3 R2g3+ Kf2 Rd3 Kf1 Nc5 Kf2 Bd6 Kf1 Rgf7 Kg1 Be1 Be3 Rd2 Nf2+ Kg3 Nd1 Rh2 Bd2 Kh3 Bf4 Bd2 Nb2 Rg7+
3r1NN1/B1q1Q3/4b3/k1PNbRbK/n2R4/nnpp2BR/4pBb1/B1r4B b - - 0 1 illegal: No proof kernel
RN3r1B/1n4Nn/2r1NB1q/1Prp1b2/Rk2B3/2pb1Q1p/2rRN3/3Kb1N1 b - - 0 1 illegal: No proof kernel
2Nr2BK/n2rQ1R1/N2n2pp/3p2B1/1B1P2n1/rN1R1R1N/2Nb3r/q2b3k b - - 0 1 illegal: No proof kernel
1BBr1rnK/1b2B1r1/2R1p2N/1q1r2bn/4p2B/NR1P2p1/1B1b4/1R1k1N1Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 h4 Kf4 b4 g5 d3+ Kf5 f4 a5 h5 g3 h6 a4 d6 g2 h7 a3 d7 a2 b6 g4 b5 g3 b7 c6 b6 Ra5 Nf3 Kg4 f5 g1R f6 c5+ Ke5 Bg7 Na3 Bh6 f7 Qe8 f8B Bd2 d8B Qb5 Rb1 a1R Rh6 Nd7+ Ke6 c4 Kf7 c3 Kg7 c2 b8B Rg2 b7 Rf2 Rc6 Ndf6 Be2 Bg5 Nd2+ Rf3 Qh1 Nh5+ Kg6 Ra2 Nf1 Rb2 Bd1 e6 Bfe7 Bd2 Bh4 Ra7 Bde7 Rb4 Rb3 Rd4 Rb1 Rd5 Rb3 Ngf6 Rb1 Re8 h8N Red8 Nf7 Ng8 Kh7 Bg5 Kh8 Bd2 Bb2 c1B Bb3 Bg5 Ba4 Bcd2 Bc1 Rff5 Bf4 Rf6 b8R Rff5 Rbb6 Bb7 Bb8 Rf6 Qg1 Kf3 Nh6 Ke2 Qh1 Rff8 Rb3 Qa6 Rb1 Qa5 R6b3 Kd1 Bb5 Qb4 Ba6 Qa4 Kh7 Qb5 Kh8 Ba8 Bc8 Rc7 Bf6 Rg7 Be7 Bb7 Bb2+
4r3/KRnn1P1k/2R2nB1/1ppB4/5Nq1/nB3bQ1/4Bp1N/B1bRr1bN b - - 0 1 illegal: No proof kernel
q1Bb1R2/R1rRnP1p/nn3p2/p2R2NN/2bN4/B2rR1BQ/r2k2K1/4r3 b - - 0 1 illegal: No proof kernel
n1N2B2/2bBP3/2bpR2n/rB1qB2k/N1pp4/1qR4R/q3q2r/N3B1KQ b - - 0 1 illegal: No proof kernel
N1BK2R1/Q1p1n2p/5bN1/qR2R2n/P3B1p1/r1rb4/RBN1kqb1/R5b1 b - - 0 1 illegal: No proof kernel
q2R1N1N/pB2K3/2NB4/2rqbr1n/3p4/2q1rR1n/1N1P1p1R/B2QNkq1 b - - 0 1 legal: proof: b4 e5 c4 g5 a4 b5 cxb5 d6 f4 exf4 h4 gxh4 a5 Qg5 a6 Be7 b6 Bf8 b5 Bb7 axb7 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 c5 e3 f5+ Kd3 Ke5 Kc4 Ke4 g5 f3 g6 h3 g7 h4 Ne2 h2 Ra3 h3 Bb2 f4 Nc1 f2 Ba1 f3 Rb3 Rh5 Nd3 Nc6 b8B Nf6 g8N Bg7 b7 Ne7 b6 Ng6 Na3 Nf4 Bg2 f1R Nc2 d5+ Kb5 c4 Kc6 d4 Nh6 c3 Nb2 Rf5 Bd6 Re1 b8N N6h5 b7 Be5 Nd7 Qa5 b8N Qd5+ Kc7 Re2 Ne1 c2 Kd8 c1Q Ke7 Qc3 Nc6 Rc8 Nf7 Rc7 Rf1 h1Q Rf2 h2 Nh8 Nh3 Ra3 Rc8 Nf8 Qg1 Rb3 h1Q Ra3 Qhh2 Bh1 Qhg3 Rh2 Q3g2 Rb3 f2 Ra3 Rb8 Rb3 Rb5 Ra3 Rc5 Rb3 Rf4 Ra3 Kf5 e4+ Kg4 Rb3 Kg3 Ra3 Bg7 e5 Re3 e6 Bf6+ Kd7 Bg7 e7 Be5 e8R Rf5 Rd8 Qgf3 Ke7 Qfg2 Nb4 Qa8 Nc6 Qd5 Bf3 Qdc4 Nhg6 Q3b3 Rd7 Re4 Na5 Qbc2 Rd3 Q2c3 Rd8 Re2 Re3 Q4b3 Nh8 Qg8 Re4 Re3 Rf4 Qgc4 Bb7 Qd5 Nc2 Rd3 Nc6 Re3 Rh1 Kg2 Ne1+ Kf1 Rh2 Qa3 Rf3 Qa5 Qb3 Qc3 Qd1
k3Q2R/1q6/B1r3N1/Nbp2KB1/R1R1pR1P/2p2bR1/rnpnBr2/4b2N b - - 0 1 illegal: No proof kernel
4k1BN/2N2nnp/2Q4n/q1bKp3/p1p1B1rb/P1BR2Nr/4BB2/1b2R2R b - - 0 1 illegal: No possible last move
2Bn2rN/b2Qp2N/b1R3p1/k1pK3R/1Rp3r1/1BB1r1Rq/2P1N1n1/1R5b b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 d5 b4 axb4 Qg4 Ra6 Qe2 Ra8 Qc4 dxc4 Ke2 Kd7 Ke3 Kc6 Ke4 Kb5 h4 c6 d4 b3 a4+ Kb6 f4 b2 f6 g6 f5 Rh7 d5 Ra7 h6 Ra8 a5+ Kb5 a6 b6 d6 Kb4 d7 b5 f7 Qc7 d8Q Qb6 a7 Nd7 f6 Qa6 h5 Qa3 Nd2 b1B Rh3 Bb7 Bb2 Qc3 Rg3 Ne5 Ne2 Ba2 Rb1 Bg7 f8R Ba6 f7 Ng4 Bh3 Bd4 Qd7 Ne3 Rc8 Ka5 f8R Ng2 Rf4 Rf7 h7 Nh6 Rfg4 Rf3 h8N Nf7 h6 Nd8 h7 Rb8 a8B Ba7 Rh4 Qb3 Ke5 Re3+ Ne4 Qa3 Rh5 Bb3 Be6 c5 Rc6 b4 Bc3 Ba4 Kd5 Qb3 Ng5 Qa3 Be5 b3 Bb7 b2 Bc8 B4b5 Bf7 Bb7 Be8 B5a6 Bc3+ Ka4 Rbh1 b1R Rg1 Ra1 Rb1 Ba8 Rb4+ Ka5 Rh1 B8b7 Rhb1 Ba8 Nhf7 Qb3 h8R Ra3 Rh5 Re4 Ba1 Rg4 Nh8 Qe3 Nh7 Qh6 Re5 Qh3 Rh5 Re3 Bc3 Ne6 Bb7 Rd8 Bc8 B8b7 Bf7 Rg8 Be8 Nd8 Qe6 Rf3 Ke5 Qh4 Rcb6 Nf4 Ba4 Qh3 Qd7 Rd3 Rf6 Bh1 Bb3 Ng2 Rc6 Re3+ Kd5
1r6/5Q1K/n1NRpq2/2kN4/1P1R1NBp/1bBnN1Nn/3prb1p/2BR3q b - - 0 1 illegal: No possible last move, all moves rejected
2bn2r1/3k2p1/1p1N1pR1/1qn2R1p/b2NrNPn/B1qN3R/KN3Q2/1B2B3 b - - 0 1 illegal: No proof kernel
1bR1RKn1/3qpbBk/rPN3Nb/3BR3/1p2q3/1N1NNpp1/4nBr1/2Q5 b - - 0 1 illegal: No proof kernel
1k1R4/r1p1qpp1/1r2N1rN/B1B3b1/5RNR/pbN1n3/1QP1N2n/q4B1K b - - 0 1 legal: proof: f4 e5 a4 b5 axb5 h6 g4 e4 g5 hxg5 d3 gxf4 dxe4 f3 e5 Rh4 Kd2 Rh3 Ke1 Rh8 Kf2 d5 e4 Kd7 h4 a5 b4 a4 e6+ Kd6 e7 a3 e8N+ Kd7 e5 d4 h5 d3 e6+ Ke7 h6 d2 h7 Qd3 b6 Kd8 b7 Bd6 b5 Qc3 b6 Ra6 e7+ Kd7 Ne2 Qb3 Kg1 Qb5 Nbc3 Qb4 Rh4 f2+ Kh1 Nc6 b8B Nd4 b7 Nh6 Ba7 Rb6 b8R Bf4 Nd6 Ng4 e8N Nf3 Nf5 Nfh2 Nh6 Bg5 Nf6+ Kd8 Rb1 Qe7 Rb4 Ne3 Nfg4 Rg6 Qe1 d1R Bc5 Rdd6 Bd2 Rb6 Rf4 Rg8 h8N Re8 Rb7 Be6 Qc1 Kc8 Qb2 Bb3 Ra7 Rf8 Ra8+ Kb7 Rd8 Ka7 Rd5 Ra8 Rd6 Kb7 Rd8 Ra7 Be1 Rgd6 Ng6 Re6 Rd5 Kb8 Nf8 Rg6 Ne6 Raa6 Na2 Ra7 Ba5 Qf6 Nac3 Qe7 Bh3 f1Q+ Ng1 Qd3 Nge2 Qd1+ Bf1 Qa1 Rd8+
4B2N/p1p2p1K/4rr2/1Rn5/B3pb1k/BP2n2R/b1QNBN2/R1qq1bB1 b - - 0 1 illegal: No proof kernel
b1krNn2/pN2b2p/1R3rB1/R1pQN1r1/2pq3B/PRB2q2/B6q/B3K3 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Na6 Bc1 Nc5 Bh3 Ne4 Bg2 fxg4 Bf1 g3 Nd2 g4 Nb1 Ng5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 f4 d5 e4 Kd7 b4 g2 g6 c6 e6+ Kc7 b5 g3 e7 Rb8 e8R Bd6 b6+ Kd7 e5 Bf8 f5 Qg5 b7 Qh5 e6+ Kc7 g7 Nh6 g8B Bg7 e7 Bd4 f6 Nf5 f7 Qg4 f8B Bc3+ Bd2 Nd4 Rh3 Ne6 Nf3 g1R Ne5 g2 Na3 Bb4 Bg7 Nf8 Rb3 Qf3 Bc3 Bd7 Qd4 Rd8 b8B+ Kc8 Nb5 Bf5 a3 Be4 Rab1 Bd6 Bf7 Rg8 Bf6 Rg6 Bh4 Rf6 Bg6 Bb4 Qc5 d4 Qd5 d3 Bd6 Re6 Bc5 Rf6 Bd4 Bc5 Ba1 Bd6 Bdc3 Bc5 Rb4 Bd6 R1b3 c5 Ra4 Rf7 Ra5 Rf6 Qf7 Ba8 Qd5 Nd7 Rg8 Nf8 e8N Be7 Rh8 Rh1 Rg8 g1Q Rg7 Qh2 Rf7 Bd6 Rb7 Rg1 Rb6 Rg5 Be2 Be7 Bd1 Qg4 Bc2 Qd4 Bb1 Rc6 Ba2 d2+ Kf1 d1Q+ Bhe1 Q1g4 Bh4 Rf6+ Ke1 Qgg2 Nd7 Qf3 Ne5 Rd7 Nbd6+ Kd8 Ndf7+ Kc8 Nd8 Rdd6 Nb7 Rd7 Bcb2 Rd8 Bc3
1N1BR3/bn2nkp1/R3pN1N/R4qPb/pK2Rnp1/6Q1/2b3bB/1R1r1B2 b - - 0 1 illegal: No proof kernel
4RrrN/k2bp1R1/n5B1/B1b2p1p/Q1r2Pp1/5BR1/2R1rNpK/1N3q1R b - - 0 1 illegal: Other
NbB5/3k1B1N/3Bn1bb/1Rp1qR2/1pQ5/BP1prrp1/pR2b1B1/5NK1 b - - 0 1 illegal: No proof kernel
1nrqQ2N/KPnN4/3B4/1r1kb1n1/2NNr1R1/3r1N2/R1Br2q1/1Q3Q2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 Nh6 c4 Ng8 cxd5 Bb7 Bc4 Ba6 Bf1 Bc8 b4 gxh4 d3 c5 b6 a5 Ra2 axb4 Qb3 c4 Qd1 c3 Ra3 Ba6 Ra1 Bc4 dxc4 Ra5 Nf3 Ra3 Ng1 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 b3 g4 b2 b7 e6 f6 c2 f5 h3 g5 h4 f7 h2 c5+ Kc7 f6 h3 d6+ Kc6 g6 Ra6 g7 Ra2 d7 Ra3 Nf3 Na6 Bf4 c1Q Ra2 Nc7 Bd6 Qg5 Nc3 b1R Nb5 Ne7 g8Q Qg2 Bd3 Bg7 Rg1 h1R f8N h2 Bc2 e5+ Kc4 e4 f7 Rbb3 Qb1 e3 Ng6 e2 f8N e1R Qf7 Rg8 Nh8 Be5 Qf4 Ra5 Qfc1 Re2 Qf1 Rd3 Kb4 Re1 Nbd4+ Kd5 c6 Rc5 Ka4 Re4 Kb4 Rb5+ Ka4 Ne8 c7 Nc6 c8N Nc7 Qbe1 Qh3 Rg4 Nb8 Qb4 Qg2 Qbb1 Rbb3 Ka5 Rd2 Qbc1 Rbd3 Kb6 Rg1 Qce1 h1N Ka7 Nf2 Qc1 Nh3 Qb1 Qe8 d8Q Ng5 Qe7 Qd8 Qe8 Rh1 Nd7 Rh6 Ba3 Rb6 Nd6 Rb5 Nc4 Qe7 Qg6 Rc8 Qe8 Qd8 Bd6
R1Bn1nK1/6Q1/n1k1rN1p/r2P1n2/2N5/1bq2nNR/5N1N/1R1QqB2 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 d5 a4 a5 bxa5 g5 c4 e6 cxd5 b4 h4 gxh4 a6 Nd7 a5 Bd6 a7 Bc5 Ba3 Bb6 axb6 Nb8 b7 Qd6 Bb2 Qe7 Bf6 Qd7 Bd8 Qxd8 Ke2 Kd7 Ke3 c5 Kf4 b3 Ke5 h3 f4 h6 d4 c4 g4 c3 g5 h2 f6 b2 f5 c2 f7 c1Q f8R Qe8 g6 Na6 b8N+ Kc7 f6 Qf7 g7 Qe8 f7 Qd7 d6+ Kb7 Nc6 Qc3 Nd2 b1N Nh3 Qe8 d7 Nf6 g8N Nh7 Ne4 Na3 Rb1+ Nb5 d8N+ Kc7 Nhf2 Nd6 Na5 Nb7 Ndc6 Nd8 Nc4 Qe7 Rg1 h1N Ngf6 Ng3 Rh1 Nf5 Rh3 Qeb4 Rg8 Nf8 Ng3 Rh7 Rh8 Rg7 Rg8 Rg6 Rh8 Rb8 a8B Rb5+ Nd5+ Kd7 Bb7 Ra5 Rg8 Rg5 Kf6 e5 Rh8 e4 Rg8 e3 Rh8 Ng6 f8Q e2 Rg8 e1N Qg7+ Nfe7 Re8 Nf3 Rg8 Nf8 N6e5+ Ke8 Rh8 Nf5 Neg4 Be6 Nh2 Bf7 Rg8 Kd7 Bc8+ Kc6 Rh8 Qe1 Rg8 Qbc3 Rh8 Ne3 Ke7 Rg6 Nf6 Bd5 Rg8 Be4 Rh8 Bc2 Ke8 Bb3 Rg8 Nde6 Kf7 Nf5 Rh8 Nd7 Re8 Ndf8 Kg8 Nd8 Be6 Nf7 Ra8 Nd8 Bc8 Rc5 N6e4 Re6 Nf6 Ra5 d5+
k1n3qB/2Nr4/8/2N1K3/1P2Q1RB/1prQQQB1/3bRq1r/q1rQ3n b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 d5 c4 a4 b3 axb3 cxd5 b2 Na3 Ra4 Nf3 Ra6 Ng1 Ra8 Ke2 b1R Nc2 c5 Ke1 b5 Qg4 c4 Nd4 b4 Nb5 b3 Na3 Ba6 Qd1 Bb5 Bd3 Ba4 Bc2 b2 Bb3 Qc8 Bc2 Bb3 axb3 Qc7 b4 Qd8 Bb3 cxb3 Ke2 Kd7 Kf3 Kc8 Ke4 Kb7 f4 g5 d4 e5 h4 g4 d6 g3 d5 g2 d7 Bg7 f6 Qb6 d8B Bh6 f5 Ka7 f7 Qb7 f8Q Bd2 h6 Bc3 h5 Qa6 d6 Kb7 d7 Ne7 h7 Qf1 f6 Qb5 f7 Qa4 h6 Nf5 Qe7 Qb5 f8Q Nc6 Ra2 Bd2 Nf3 g1Q Nd4 Bc3 Rh4 Bd2 Nac2 Qc4 Rg4 Qg8 Ne6 Ra7 Ne3 Ka8 Nc5 Qf2 Nd5 Ra1 Qg5 b1R Qe3 Nce7 Qf7 Nc8 Bh4 Rb2 d8Q Rc2 Qfe8 Rc3 Qf8 Be1 Re2 Bd2 Qfe8 Rd7 Qf3 Be1 Bf4 Bd2 Bfg3 Rac1 Qe6 Ng7 Qeb6 Nh5 Kf5 e4 Ke5 e3 Qg6 Nf4 Qge4 Nh3 Qb6 Qf1 Qb5 Nf2 Qbd3 Nh1 Rh2 e2 Rg2 e1Q Re2 Qf8 Qee3 Rg8 h8Q Qef2 Qhh7 Rh8 Qhe4 Rhh7 Bh2 Qg8 B2g3 Rhg7 h7 Rg5+ Qef5 Rh5 h8B Rh6 Q5e4 Rh5+ Bg5 Rh2 B5h4 Ra1 Q1c2 Qc1 Qb1 Qb2 Qe1 Rac1 Qd1 Qa1 Nc7+
2rRr3/Qr3RBb/2n1P3/bkNnp3/b1bNB3/4RN1R/6R1/r2Q3K b - - 0 1 legal: proof: f4 a5 b4 b5 c4 e5 g4 d5 cxd5 h5 gxh5 Qd7 f5 Qe6 fxe6 axb4 a4 Ra6 axb5 Ra3 e4 Rc3 Ke2 Rc4 Kd3 Rxe4 Kc2 Re2 Kd3 c5 h4 g5 h6 f5 d6 b3 d7+ Ke7 d8N Kd6 h5 f4 b6 g4 b7 g3 h7 f3 h6 g2 Ra7 f2 Nc6 b2 Rh3 Re1 Nd4 Bg7 Ngf3 g1R Bg2 Nf6 Nc3 Bf8 Na4 Ref1 Ke2 c4 Nc5 Rg8 h8R b1B h7 Nc6 b8Q+ Kd5 d3 c3 Rf7 c2 Bh6 c1R Bg7 Bd7 Qa7 Be7 Ke3 Re8 Rg8 Bd8 h8R Ba5 R8h4 Kd6 Re4 Nd5+ Ke2 Bc2 Re3 Rb1 Bh1 Rg6 Bg2 Rb7 Bh1 Rfg1 Bg2 f1B+ Kf2 Rh6 Kg3 Be2 Kh2 Rh8 Bh1 Re1 Bg2 Bf1 Kh1 Rc8 Nh4 Be8 Be4 Ba4 Nhf3 Bc2 Qe2 Ra1 Qd1 Bb1 Bh6 Bd7 Rg2 Rhd8 Bg7 Re8 Ndb3 Kc7 d4 Be2 Qf1 Bc4 Qd1 Nde7 d5 Bbd3 Qb8+ Kb6 d6 Nd5 Qa7+ Kb5 Nc1 Rg8 Ne2 Be8 d7 Bc2 d8R Ba4 Rf6 Bg6 Rf4 Bh7 Rf7 Re8 Ned4+
1Q4Q1/6br/Q2B2b1/RNN1r1N1/2qN1rb1/1N4p1/1bnp2PB/1K3R1k b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 e4 c5 exf5 b5 a4 g4 d4 cxd4 a6 Nc6 a7 Qb6 a5 Ne5 axb6 Nf7 b7 Ng5 hxg5 Nf6 Bd3 Ng8 Bc4 Nh6 Bg8 Nxg8 Kd2 Kf7 b8B h5 f4 d5 c4 e5 Kc2 b4 g6+ Kf6 g7 b3+ Kb2 d3 c5 d2 c6 e4 c7 d4 Nh3 e3 Ng1 d3 Na3 e2 Rh3 e1B Ne2 h4 Nb5 Rh7 Ned4 Nh6 g8Q Bg7 Rf3 h3 Kb1 b2 Qa4 d1R Rf1 h2 Nb3 h1Q N5d4 Bc3 Qa6+ Be6 c8Q d2 Bd6 Qh4 Ra5 Re1 Qb8 Re5 Bc7 Nf7 Bd6 Nd8 Bc7 Nc6 Bd6 Nb4 Bc7 Ke7 f6+ Kd7 f5 Nc2 f7 Ke7 f8N Kf6 Nd7+ Kg5 f6 Bf5 Rh1 Kf4 f7 Kg3 Rf1 Kh2 f8N Bg6 Nfe6 g3 Ndc5 Qe4 Ng5 Qd5 Bb6 Qc4 Qbe8 Rb8 a8N Bh5 Ba7 Bg4 Nc7 Rc8 Qeb5 Rf8 Qb8 Rf4 Ncb5 Bb4 Nce4 Be7 Nec5 Bef6 Ka2 b1B+ Kb2 Ne1 Ka1 Bg6 Ba3 Nc2+ Kb1 Qd3 Nd7 Qc4 Bd6 Re2 Ndc5 Be5 Nf5 Bb2 Nfd4 Re5 Nce6 Bd1 Nf5 Qc7 Bg1+ Kh1 Nfd4 Qc4 Nec5 Bg4 Bh2+
R2nqB2/b1B2N1K/N2n1p1p/3B1N1n/1Q2rN2/Nq3k2/Q6P/1qR4n b - - 0 1 legal: proof: e4 c5 f4 d5 b4 dxe4 bxc5 b5 a4 g5 axb5 gxf4 b6 Bh3 Nxh3 a5 b7 Ra7 Ng1 Ra6 Bxa6 Nh6 Bf1 Ng8 Kf2 Kd7 c4 Ke6 d4 Kf5 g4+ Kg5 d5 e5 d6 e3+ Kf3 a4 Ke4 e2 d7 e1N c6 h6 c5 a3 c7 f6 c8N a2 c6 Bb4 c7 Nd3 Ba3 f3 Qa4 f2 Bg2 f1N Ne2 Nc6 b8N Nge7 Nf4 Qe8 d8B Nf5 Nd6 Bc5 c8N Ba7 Bc7 Nd8 Na6 Qf7 Qb4 Qb3 Rg1 Re8 Ne7 Kh4 g5 Kg4 Nfg6 Nf4 Nf7 Nh5 Nf4 Qc3 g6 N1g3+ Kd5 e4 g7 e3 Rc1 Nd6 Nf5 e2 g8Q+ Ng7 Be4 e1Q Bh1 Re3 Bg2 Nh1 Be4 Nc6 Qa8 Nh5 Ke6 Nd8+ Ke7 Bb8 Kf8 Ba7 Kg8 Qb3 Bd5 Re4 Kh7 Kf3 Qbb7 Ne8 Bf8 Nd6 Qb4 Qe2 Na3 Qb5 Rc5 Qe8 Rac1 a1Q Ra5 Bb8 Qa7 Qab1 Qf2+ Kg4 Qa2 Kf3 Rb5 Ba7 Rb8 Bf2 Rc8 Ba7 Ra8
4Rb2/3b1prB/5bB1/N1p5/2KB1Nbk/3Q2p1/rR3PQR/B1n2nB1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 d4 Bd6 dxe5 Bf8 b4 a5 g4 axb4 g5 Qd6 g6 Qa6 bxa6 hxg6 Qd3 g5 Qd1 g4 Kd2 Ke7 Kd3 c5 e4 g5 h4 b3 h5 g3 d6+ Ke6 a7 g2 h6 b2 d7 g4 d8B Nf6 h7 Ne8 Ra2 Rg8 h8B Bd7 Rh2 Bc6 Nd2 b1B+ Kc4 Na6 Bc7 Be7 Rb2 Rg6 Nh3 g1B Bd3 Bb7 Nb3 Nf6 Na5 Bc6 Be3 Bf8 Bd4 Bd7 Bb8 Ke7 e6 Nh5 e5 Rg7 Bg6 Nb4 Qd3 Ng3 Bh7 Na2 Bd6+ Ke8 e7 Nc1 Bg6 Nf1 Bc7 Rb8 a8B Bc2 Bd5 Bd1 Bde4 Ra8 Bh7 Ra7 Beg6 Be2 Nc6 Ra2 Na5 Bc8 Bb8 Kd7 Bc7 Ke6 Bb8 Bd7 e8Q+ Be7 Qc8 Bf8 Qc6+ Ke7 e6 Bd1 Be3 Kf6 Qg2 Be2 e7 Bf3 Rh1 Bh2 e8R Be5 Bd4 Be2 Rh2 Bf3 Ng1 Kg5 Nh3+ Kh4 Rh1 Bf6 Bh2 g3 Bg1 Rg8 Rh2 Bd1 Rb4 B1g4 Ba1 Bg5 Bhd4 Rg7 Rb2 Bf6 Nf4+
1KR1Q2b/n1Q4Q/2b1rp1N/pP1pQ3/1b3QB1/q6q/1B1N1q1R/5N1k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 b3 a5 Na3 Ra6 Rb1 Rc6 Ra1 Rc4 Nb1 Ra4 b4 Na6 b6 Nc7 Rxa4 Ke7 b5 Nd5 Ra1 Ne3 Bh3 Nf1 Bxf1 Ke8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 c4 f3 h4 d6 c5 d3 h6 f2 c6 g4 h5 g3 c7 g2 h7 f6 b7 d2 b8Q Qd7 h6 Qg7 Bb2 Qg5 Qe1 d1Q Ra2 Qc5 Nf3 g1B Nfd2 Qb6 Bh3+ Ke7 Kd5 f1Q e4 Be3 e5 Qd4+ Kc6 d5 e6 Q1a4 Bg4 Bd7+ Kb7 Kd6 e7 Ke5 e8Q+ Kf4 c8Q+ Bd6 Rh3 Ne7 Qcc7 Qa3 Rg3 Qdc3 Rg2 Qf2 Nf1 Nc8 Nbd2 Na7 Ka8 Rf8 h8Q Rf7 h7 Re7 Qg7 Re6 h8N Bc5 Qgf7 Qh3 Qh7 Bb4 Nf7 Bc6+ Qcb7 Re5 Nh6 Bf8 Qd6 Bg7 Kb8 Bh8 Qbc7 Kg5 Ra1 Kh4 Rc1 Re6 Qf4 Qh1 Bd1+ Kh3 Qee5 Qh2 Rg7 Qh1 Bg4+ Kg2 Rc3 Qh5 Rg8 Kg1 Rg3+ Kh1 Rg2 Qhh3 Qed7 Qe1 Rc8 Qee3 Qe8 Qf2 Rh2+
2NnQ3/1nNQr1B1/Rq5p/1bB1b1b1/p1R3K1/2BpN3/P1Np2N1/k7 b - - 0 1 illegal: No possible last move
N1q1rn1B/1R5B/b1n1nQ2/2Bkn3/br1nP1q1/Q2B2B1/2r5/KR3Q1N b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 b4 Ke7 d4 Kd6 Kd2 c5 Kc2 a5 Kb2 f5 b6 h5 b5 g2 g6 f4 g7 a4 b7 h4 b6 f3 Ra2 c4 Qb3 a3+ Ka1 f2 Bb2 h3 Bc3 g3 Nd2 h2 Rb2 a2 Nh3 g1N Bg2 f1N Be4 g2 Bd3 Rh4 Nf2 Nf6 g8B Nh3 Bgh7 Ne3 Rhb1 g1Q Nh1 Nc6 b8B+ Qc7 b7 Qg4 Qd1 Ng5 Ba7 Ne6 b8B Ba6 Rb7 Nd7 Qf1 Ndf8 Bb2 c3 Nc4+ Ke7 Nb6 c2 Bc3 c1R Bb2 Qd7 Bg3 Re8 Na8 Rc2 Bc3 Qc7 d6+ Kd7 d5 Nc4 Bh8 N4e5 R7b4 Qc8 Rb7+ Kd8 d7 Ke7 Be3 Kd6 d8Q+ Nd7 Nf2 h1B Qf6 Nf8 Bb6 Bg2 Nh1 Bf3 Bc7+ Kc5 d6 Kd5 d7 Be4 Bd6 Bg2 Bdg6 Be4 d8Q Bed3 Bh2 Bdb5 Bd3 Ba4 Bg3 Qg8 Bh2 Rb4 Qde7 Qg4 Bc5 Qf5 Bd6 Rb3 Bg3 Qg4 Ba3 Rb5 Qb4 Rb6 Qc3 Rb5 Bc5 Rb4 Qb3+ Rcc4 Kb2 a1N Ka2 Nc2 Qa3 N2d4 Ka1 Rc2 e4+
5n1b/2R3q1/B2nNk2/4P1bb/rR1bBB2/Brr2qR1/3B1N2/K1bQ2Q1 b - - 0 1 illegal: No possible last move
q2N2bK/3r3N/1bbqb2R/QnNR1rq1/Q5nB/4rk2/3BNN1P/R7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 a6 b4 Kd7 b6 Rh6 b7 Rh8 b5 Nh6 b6 Ke7 Bh3 Ng8 Bf5 Ke8 Bd3 Qf6 Bc4 Qd8 Bb5+ axb5 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 c5+ Kc3 Ke5 d4+ Ke4 h6 g5 h7 b4+ Kc4 b3 e3 f3 d6 g4 d7 f2 d5 f1R d6 g3 Ra2 b2 Qa4 g2 Bd2 f4 Ra1 f3 Ne2 f2 Nbc3+ Kf3 Kd5 g1Q Ke5 b1B e4 c4 Nd1 Na6 b8B c3 b7 c2 Ba7 c1Q b8N Qb6 d8N Qa3 d7 Nc7 Na6 Nh6 Nc5 Ba2 Bb8 Qbb4 Kf6 Bg8 e5 Nb5 e6 Ra7 e7 Ng4+ Kg6 Qf4 e8N Qd6+ Nf6 Re1 Bc7 f1B Nf2 Bg2 Bb8 Be7 Kg7 Qa2 Rd1 Qad5 Bc7 Qa8 Bca5 Rc7 Bg5 Ra7 Bh4 Rb7 Bd2 Rc7 Nc1 Re3 Ne2 Ra7 Ra1 Qc1 Rd1 Bh1 Nf7 Bg2 d8Q Be6 Qb6 Bd8 Qba5 Bc7 Nd8 Bh1 Bc3 Bg2 Rd5 Bb6+ Kg6 Rd7 Bd2 Bgf7+ Kg7 Rf8 h8R Bg8+ Kg6 Qg1 Rh6 Qc1 Nh7 Rf5 Nf7 Qg1 Kg7 Bh1 Kh8 Qgg3 Rf1 Qgf4 Re1 Qg5 Nd8 Kg2 Rd3 Kf3 Nd4+ Kf4 Ra1 Bc6 Ne2+ Kf3 Rd5
R1K1R1rn/1Q1nbkq1/1b6/Qq1bN3/2R4q/1Rb2QnN/2B1R1PB/3r4 b - - 0 1 illegal: No possible last move
2Q1rB1b/2q3R1/B2r3k/NN2b1br/n3q3/1B1bN1Qn/KR2PB2/2Bq4 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 e5 a4 exf4 c4 d5 cxd5 b5 axb5 Rh6 Bh3 Rh7 Bf1 Rh8 h4 f5 d4 Kf7 Kd2 Kg6 Kc2 c5 Kb3 g3 b6 f3 a6 g2 d6 c4+ Ka2 f4 b7 f2 a7 f3 d5 c3 d7 c2 d6 Rh5 Na3 Nf6 Nb5 Na6 b8N Nh7 Nc6 Ng5 Rb1 Kh6 Na5 Qc7 d8Q Nc5 d7 Bd6 Qe1 Be5 Nh3 g1R Nf4 Na4 Bh3 f1Q Be6 f2 Ng2 Ba6 Ne3 Nh3 Qc8 g5 d8B g4 Be7 g3 Rb2 Qg2 Bb3 f1Q Rh2 Qe4 Rg2 Rb8 a8B Rb6 Bad5 Rd6 Bdc4 Rh1 Rg1 g2 Qg3 Qd1 Bd3 Bh8 Bdc4 Re5 h5 Ree6 Bh4 Re8 Be7 Kh7 h6 Rh2 Re1 g1B Bf8 Bf2 Rg1 Rh1 Nd5 Bfd4 Ne3 Bde5 Rg2 Ng5 Bd3 Kg6 h7 Rh5 Be7 Kh6 Bf8+ Bhg7 h8B Nh3 Bd2 c1B Be1 Kh7 Bf2 Bgf6 Bhg7 Bd2 Bh6 Bh8 Nf5 Bg5 Bdc4 Bgf6 Bc1 Bg5 Ne3 Kg6 Bd5 Kh7 Bb7 Kg6 Na7 Bc4 Ba6 Bd3 Nb5 Kh7 Qh2 Bd8 Rg7+ Kh6 Qf4+ Bg5 Qg3
2KQ1N2/1Q1R1b2/1rbqn3/4q3/1N1N1br1/2kqP3/BR2qn1Q/1B1nNN2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bd6 Ba3 Bh3 axb5 Bf8 b6 Bg4 b5 Bc8 Bb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 g4 c5 g6 f5 g5 f3 d6 h4 d5 f2 b7 f4 g7 f3 d7 h3 Ke6 b3 e3+ Kb4 d6 c4 g6 c3 b6 c2 Rh2 c1Q Qd2+ Qc3 Bd3 f1Q Ra7 f2 Nf3 b2 Ne1 Na6 b8Q Qe2 b7 Nh6 g8B f1Q g7 Ng4 Qc2 Qf4 Nd2 b1N Nf1 Rh4 Bf7 Qcc7 g8N Nf2 Ne7 Nc3 Nf5 Bh6 Nd4 Ncd1 Qa2 Qb6 Bb1 Kc3 Qc7+ Qc5 b8N Rg4 Nbc6 Rb8 Nb4 Rb6 Qb7 Qcb5 Rg2 h2 Bg8 Qc7 Ke7 Qcc5 d8N h1B N8e6 Qce5 Kd8 Nc7 d7 Qbd3 Nf8 Qd6 Rh2 Qfe5 Be6 Bc6 Rg2 Qf3 Qe2 Bf4 Bea2 Ne4 Qf2 Qfe2 Qh4 Nef2 Qh2 Qdc5 Qa8 Ba6 Qb7 Qcd6 Kc8 Bc4 d8Q Bf7 Nd7 Ne6 Nf8 Nh1 Rf2 Qf3 Rb2 Nhf2 Ra5 Qfe2 Rd5 Qc5 Rd7 Qe7 Nb3 Q7d6 Nd4
N1B2Rn1/2R1qNb1/1QRBB1K1/R2q4/nbR4P/1r1r4/q6Q/1k1b2nb b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 Kf7 h4 c5 b4 a5 d4 e5 d6 c4 f6 Ke6 f7 Kf5 d5 Ke4 g6 c3 d7 a4 b6 a3 d6 f3 Kg3 f2 b5 a2 g7 c2 b7 Qc7 d8Q Bf5 b6 Be6 d7 Na6 b8Q Bd5 b7 Nc5 Nf3 Ra3 Bh3 Kd3 Ng5 f1B Bf4 c1Q Nd2 e4 Nc4 e3 Nb6 Kc2 Na8 Na4 Bd6 Be2 Kf4 g3 Kf5 g2 Kg6 Qd2 Rhc1+ Kb2 Rc3 g1N Rc6 Bd1 Bg4 Qca5 Qb6+ Rb3 d8R e2 Rdc8 e1Q R8c7 Qe7 Bc8 Bh1 Rac1 a1B R1c4 Nf6 g8B Qad5 Bc5 Kb1 Bd6 Bg7 f8R Qa2 Bge6 Ng8 Rf5 Bac3 Nf7 Bb4 Re5 Qf3 Ra5 Rd3 Qf2 Qd5 Qh2 Rh7 Qa7 Rh5 b8R Rf5 Qb6 Rff3 Ba6 Rb3 Rf8 Rfd3 Bac8
rn1qQQb1/qr1Q4/1P4q1/rnN1N3/B6N/Q7/1BbRb1b1/1kR1Q1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 d3 h3 g6 h4 d7 c4 e6 c3 g7 a4 e7 f3 e8Q a3 b5 a2 b7 f4 b6 c2 Qde1 h2 Ba3 c1Q Bg2 h3 Q1e6 Qc2+ Qe2 Rh5 Qf7 Rha5 Qb3 Nh6 g8Q Nf5 Nc3 Bh6 Qe8 Nd6 Rd1 a1Q Bb2 Nb5 Rd2 Qa3 Kf1 f2 Qe1 Qa2 Bc6 Qa3 Ke2 f1B+ Kf2 f3 Qf8 Qa4 Qba3 Be2 Qe8 Bd1 Kf1 f2 Ne4+ Qc3 Nc5 Bc2 Bc1 Qcb3 Nf3+ Kc3 d4 Be3 Rg1 h1R d5 h2 d6 Qg4 Nh4 Qg6 Qf8 Bg5 Kg2 f1B+ Kf2 Be2 Bb2+ Kc4 Rf1 Qa4 Kg2 Rg1+ Kf2 h1B Qe8 Na6 b8Q Bg2 Qa7 Nb8 Qc7 Qe7 d8Q Be6 d7 Bg8 Qdc8 Bf4 d8N Qeg5 Nf7 Qd8 Q7d7 Bh6 Rd5 Bc1 Rd2 Rh1 Qf8 Rh3 Qde8 Rd3 Rh1 Rd7 Kg1 Rda7 Qcd7 Rb7 Qag3 Kb4 Ne5 Qa2 Bd5 Qa1 Bb3 Qa2 Ba4 Qa1 Bc3+ Ka3 Bb2+ Ka2 Qa3+ Kb1 Rh3 R8a6 Rhd3 Ra8 Rd1 Qa2 R3d2 Qaf7 Qdd3 Rba7 Qf5 Qb7 Qfd3 Qa6 Qd4 Rb7 Qdd7 Qa7 Rxc1#
n3B2b/2Q1R2K/rnR3P1/rQ1nq3/1N1R2R1/4nn1R/NrN5/b2k1Bn1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 b3 g3 Bb2 Qg5 Bd4 Qd8 Bf2 Ba3 h3 Bg4 hxg4 Qf6 g5 Ne7 Qc1 gxf2+ Kd1 Bc5 g4 Ng8 Qc2 Qe7 Kc1 Qd8 Qd1 Bf8 Kc2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 e4 h5 d4 c5 g6 a5 b6 c4 d6 a4 e5 f3 b7 a3 d5 h4 e6 a2 e7 h3 e8R c3 g7 h2 d7 c2 d6 c1N g5 Ra5+ Qd5 Qf6+ Kg4 Na6 b8N Nc7 d8Q Na8 g6 Ne2 d7 Ne7 g8B Bg7 Qc6 Nc8 Qdc7 Ncb6 d8R Qe5 Re7 f5+ Kg5 Rh3 Bc4 Bh8 Na3 Kc3 b4 Ra6 Rad1 a1B b5 Rg3+ Kh6 f4 Qe8 Rg5 Nc6 Kb2 R1d6 Kc1 Bd3 Kd1 Nc2 Rf5 Kh7 Rg5 Bg2 f1N N6b4 f2 Rc6 f3 Rd4 Ne3 Bf1 Ned5 Qeb8 Rg2 Rg4 Ra5 Bf5 Ra6 Bd7 Ra5 Be8 Ra6 Nh3 Ng1 Na2 Ra5 Nf4 Ra6 Bc4 f1N Nd3 f2 Ndb4 Nd2 Bf1 Ndf3 Qbb7 Nd7 b6 Ra5 Bd3 f1N Rd4 Nfe3 Bf1+ Rd2 Qbb8 Ra6 b7 N7b6 Rg4 Ra5 Rd4 Nh3 Rg1 h1R Rgg4 Rg1 Qa7 Rg2 b8R Nhg1 Qa6 Rf2 Qb5 Rd3 Rdc4 Rda3 Rd8 Rd2 Rg3 Ra6 Rcg4 R3a5 Rh3 Ra4 Nd4 Rb2 Ndc2 R4a5 Nd3 Nf4 Rd4 Nfd5 Ndb4+
1r6/1RqkBr1P/1br1Br1q/q1Q1R2Q/n5QQ/K1QqqN2/1N1N4/n7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 a5 d4 c5 Kd2 g5 Kc2 f5 Kb3 c4+ Ka3 a4 e4 g3 h4 g2 b6 g4 d6 g3 h5 f3 h6 c3 b7 c2 d7+ Ke7 e5 f4 b5 f2 h7 f3 e6 Na6 b8Q Nh6 d5 Qc7 d8N Ng4 b6 Ra7 b7 Ne3 Bc4 f1Q Nf7 f2 Nd2 Nc5 Ngf3 g1R Rb1 g2 Nd6 Qd3+ Bb3 f1R N6c4 Ke8 e7 Kd7 d6 Rg8 Bb2 c1Q Rh5 Rf2 Re5 Nc2+ Ka2 Rh1 Ba3 g1Q Nb2 Rh6 Qa8 Rhg6 b8Q Na1 Qb6 Rf6 Qa5 Ra6 Qd5 Rc6 Qc3 Qgg6 Bb4 Qh6 Ka3 Bg7 Qg1 Qe1 Ba2 Qee3 Ng5 R2f5 Ngf3 Rgf8 Qg4 R6f7 Re4 Bd4 Re6 R5f6 Re5+ Ke8 Qc4 Be6 Qb5 Kd7 Qa5 Rd8 e8Q+ Kc8 Qf8 Kd7 Qb5 Qhg5 Qh6 Rb8 Qhh5 Qh6 Ba5 Qb7 Bd8 Qc8 Be7 Qc7 Kb4 a3 Qb6 Na4 Qb5 Bb6 Qbc5 Kc8 d7+ Kb7 Bc4 a2 d8Q Rf8 Qdd4 Kc8 Ka3 R8f7 Qdf4 Kd7 Qfh2 Qdd4 Q2h4 Qdd3 Kb4 Ba5+ Ka3 Nb6 Nd1 Nc2+ Kb3 a1Q Bd5 Qa4+ Kb2 Na1 Ba2 Qab5+ Ka3 Na4 Rb2 Qa6 Rb7 Bb6 Nb2 Qa5 Bxe6+
5nr1/1Pr2n1r/2Q2K2/N1n1N1N1/q2kqB1R/Q1nN3N/1Bn1Q1r1/2R1b3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 g5 d4+ Kf6 b6 c5 b5 a5 h5 a4 d6 a3 h6 a2 d5 Ke5 h7 c4 d7 c3 b7 c2 b6 Qf6 d8N Qe6 d6 Nh6 d7 Bb4 f6 Nf7 Nd2 Kd4 e5 Qd5 e6 Qe4 Ba3 c1R e7 Rc7 Rc1 a1N e8Q Nb3 Rh4 Nc5 Qe2 Bc3 Nh3 g3+ Kg1 g4 Nc4 g2 Kf2 g1N Ne5 Rg8 h8N Ra7 Nhg6 Ba5 Nd3 g3+ Kf1 f2 Nge5 Be1 Ne6+ Kd5 d8N Nbd7 b8B Nf8 Neg5 Kd4 Qc6 Rab7 Qd1 Ne2 Bb2+ Nc3 Qf3 Ra7 Kg2 f1N Nb7 Ne3+ Kg1 g2 Kh2 g1R Qe2 f3 Na5 f2 b7 Rh1+ Kg3 Nc2 Ndf4 f1Q+ Kg4 Nd8 f7 Qg1+ Kh5 Qg4+ Kh6 Rh2 Nfd3 Qgf4 Kh5 Ra8 Kh6 Rg2 Kh5 Qg4+ Kh6 Rh8+ Kg7 Rh7+ Kf6 Qd7 Qe6 Qa4 Qc6 Ng6 f8Q Nf7 Ba7 Rac8 Bb8 Rd8 Qe7 Rg8 Qf8 Nb3 Qe7 Nf8 Qa3 Nc5 Ng6 Rc8 Bf4 Rc7 Nge5
2QNb3/2Nb1b2/Br6/2r2nB1/4kR1B/1bbr2P1/1rB1bBQ1/K2Rq2Q b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qb3 a4 Qc2 Nc6 Qd1 Na5 bxa5 Qd6 Nh3 Qf6 Ng1 Qd8 d4 Ke7 Kd2 Kd6 Kc2 h5 Kb2 c5 e4 f5 a6 f3 a7 h3 b6 h4 g3 h2 b7 a3+ Ka2 h3 Qa4 f4 Nc3 f2 Qc2 c4 Be2 f1B Qd1 f3 Bg5 f2 Nf3 Nh6 Ne5 Qe8 Nc6 Nf5 Nd8 Rb8 a8Q Bd7 Qb1 Bg2 Rd1 f1B Qb2 h1B e5+ Kc7 e6 Kd6 e7 h2 Be3 Bg7 Bf2 Rh6 Rd3 Bf3 Rad1 Bh5 Rf3 Bf7 Ka1 a2 Bd3 Be2 Bc2 Bg2 Qc1 h1B Qd2 Qf8 e8B Qe7 Qe1 Be5 Qg1 Bh3 Qg2 Ba4 Bd7 Bb3 Bb5 Rg6 Ba6 Bf6 Na4 c3 Nc5 Qe5 Nce6 Qe3 Bcd3 c2 Nc7 c1R+ Bb1 Rc3 Bc2 Rc8 b8Q Rd3 Qbb7 Qd2 Qbb8 Qe1 Qbb7 Rb8 Qc8 Rb5 Qab7 Rc5 Qba8 Ne7 Qab7 Bd7 Qba8 Bh8 Qab7 Nf5 Qc6+ Ke7 d6+ Kf6 d5 Ke5 Q6a8 Bde8 d7 Rb6 d6 Bf6 Nde6 Bh8 d8B Bg7 d7 Bh8 Kb2 a1R Bh4 Ra2+ Kb1 Rb2+ Ka1 Bf6 d8B Bg7 Bdg5 Bf6 Qa7 Ke4 Nd8 Bc3 Qab8 Ng7 Qch3 Nf5 Qc8 Bd7 Qg1 Bg2 Qhh1 Bh3 Qgg2 Bg4 Be7 Bgh5 Bef6 Bfe8 Bfg5 Bhf7 Rf4+
4R1R1/n2Q4/1BnKQ1r1/rr4N1/n2b1Br1/3B1bPB/1b4n1/1nQN1B1k b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qb3 a4 Qd1 Qf6 Qc2 Qa6 Qd1 Qa5 bxa5 Bf5 Ra2 Bh3 Ra1 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 h5 e4 c5+ Kc4 Ke5 a6 a3 g3 h3 d3 f3 d6 h2 b6 f4 b7 f2 a7 f3 d7 a2 d8B h4 Na3 h3 Be2 f1N Rb1 a1N Qd2 f2 Kb5 c4 Bg5 c3 Bd8 c2 Bb6 Ne3 Bf1 Ne7 Kc5 Rg8 Nb5 Rg6 Nc3 Bg4 Nd1 Nbc6 Rb5 Rb8 a8B Bg7 Rb4 Ng2 d4+ Kf6 d5 Ke5 d6 Nc8 d7 Bf3 d8Q N8a7 Bd3 f1N Qd7 Bh8 Qe2 Nd2 Rc4 Nb1 Bf4+ Kf6 Kd5 c1B Kd6 Bb2 Ra4 Rbg8 b8Q Nb3 Qbc8 Nc5 Qc2 Rg4 Qc1 R8g6 Bb7 Bg7 Bba6 Bh8 Ra5 Na4 Re5 Bg7 Re8 Bh8 Ne2 Bg7 Re1 h1R Nd4 h2 Rg8 Rg1 Bab5 h1R Ne6 Rh5 Ng5 Rf1 Re2 Bd4 Ba6 Rf2 Re3 Rb2 Re1 Rb5 Bf1 Rgh6 e5+ Kg6 e6 Kf5 Qce8 Rg6 Re4 Ra5 Bad3 Bb2 Qec8 Bgd4 Qce8 Rgh4 Qef7+ Kg4 Qf6 Rb5 e7+ Rf5 Nh7 Kh3 Re6 Rc5 Re1+ Rhf5 Ng5+ Kh2 Re6 Ra5 Re3 Ne1 Bh3 Rfb5 Bdf1 Rg4 e8B Rh6 Bg6 Kh1 Ree8 Ng2 Bgd3 Rg6 Qfe6
1R5K/n1N1nQ1P/4R1rR/B3r1b1/4bk2/N1nBrn1R/3Nb1Qb/2n4R b - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 h4 d5 cxd5 g5 a4 h5 axb5 Qd6 Qa4 Qe5 Qb3 gxh4 Qd1 h3 Nc3 h4 Nb1 Qh5 gxh5 Bg4 Na3 Bf5 Nb1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 a5 b4 f5+ Kd3 f3 e4 f2 h6 f4 b6 f3 h7 a4 b7 a3 b5 h2 b6 h3 Qc2 a2 Na3 Nc6 b8R Nge7 b7 Rg8 Bd2 Na7 Ba5 Bg4 Re8 Rg6 b8R c4+ Kc3 Bh6 Bd3 f1B Qg2 f2 Nf3 Bg5 Nd2 Bfe2 Raf1 Bf5 e5+ Kd7 e6+ Kd6 Rfb1 f1N R1b3 Be4 R8b6+ Nec6 e7 a1B+ Kc2 c3 Ra6 Kd7 d6 Ke6 d7 Kf5 d8N Kf4 d5 Rb8 d6 Rb5 d7 Re5 Rb8 Bb2 Kb3 c2 Kc4 c1N Rb3 Bd4 Rab6 Bg1 Ne6+ Kf5 Nc7 Kf4 Nf3 Nd2+ Kc3 Nd4 d8R Nb1+ Kc4 Nc3 Nd2 Nf3 Rdb8 Nc8 Re6 Na7 Rg8 Bc5 e8Q Bd6 Re1 h1R Qf7+ Rf6 Rg7 h2 Rg6 Rf1 Rh6 h1N Rd1 Ng3 Re1 Rh1 Rf1 Rh3 Rh1 Nh4 Kd4 Ngf5+ Kc4 Ne7 Kd4 Re3 Rh3 N1a2 Rb1 Ref5 Rg1 Nc1 Rgh1 Nf3+ Kc4 Be5 Kc5 Bd4+ Kd6 Re5 Kd7 Bb6 Ke8 Bc5 Kf8 Bd6 Na6 Bc7 Kg7 Bd6 Kh8 Bc7 Qg8 Rg6 Qf7+ Rf5 Qh2+ Kg4 Qf2 Bh2 Qg2+ Kf4 Qg7 Rc5 Nc7 Re5 Qf7+
2bN4/4B3/5KPN/RnQb4/n1r1p3/rqNqNQ1R/1RB1rk2/b1N1q3 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 e5+ f6 h5 g4 c5 b6 h3 d6 h2 f5 h4 d7 e4 b7 b3 Ba3 h3 Ne2+ Kd3 Nbc3 c4 Be7 b2 f7 b1B f6 Bg7 f8Q Na6 b8R Nc7 f7 Ra3 Rb2 Nb5 Nc1+ Kd4 d3 Ke3 d4 Nf6 d5 Ba2 d6 Nd5 Bd3 Nb6 Bc2 Na4 Qd5 Kf2 Qc5+ Bd4 Kf5 Rh4 g5 Rg4 g6 Rg2 Qe8 Qb6 f8N Qb7 Ne6 Bb3 Nd5 c3 Ne3 Bd5 d8N Qb6 d7 Bh8 Bd3+ c2 Nf7 Bc3 d8N Qb7 Rd1 h1Q Qf8 h2 Nh6 Qe1 Raa2 h1Q Qf7 Bb4 Kf6 Qhf1 Nd4 Bc3 Rd2+ Qfe2 Rb3 Ba1 Rab2 Nc7 Nb5 Rh2 Nc3 Nb5 N1a2 c1R Bc2 Rg2 Rd4 Qd3 Rc4 Nb6 Ra4 Qb8 Ra5 Na4 Bb1+ Rc2 Nc1 Qb7 N3e2 Rc4 Nc3+ Kf3 Bc2 Re2 Qe6 Qb8 Qh3+ Kf2 Qf3+ Kg1 N3a2 Qdd1 Ng2+ Nd4 Qg4 Kf2 Rh3 Qd3 Nc3 Qb3 Ne3 Nb5 Qf3+
B2KN2k/1p1QN2b/R1q1Q3/1R3nrP/B3NNn1/q2Nb3/1Q3qb1/r3r3 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h6 g4 Nd7 g6 Nb8 g7 Ra5 Na3 Ra7 Nb1 Ra8 g5 Bd7 g6 Qc8 Bb2 Qd8 Bf6 Bc8 Bg5 hxg5 Ke2 c5 Ke3 e5 Ke4 g4 d4 c4 a4 c3 h4 c2 a5 c1Q a6 b3 d6 b2 Kd5 g3 h5 g2 a7 e4 d7+ Ke7 Nh3 Kf6 Nf4 g1Q Qe1 e3 Bb5 e2 Ra6+ Bd6 Nd2 b1B Nd3 Qf8 d8Q+ Qe7 Qd7 Rh7 Ba4 Nh6 g8N+ Kg7 f6+ Kh8 f7 Nf5 f8Q Bc7 Qf6+ Ng7 Ne4 Qd8 Ne7 Ba5 Kd6 Qf8 d5 Qf2 Qb2 Bd2 Rh4 Nc6 Kc7 Qc2 d6 Be3 Rg4 Q8f3 Rg5 Ne5+ Kd8 Ng4 Rb5 Qc3 Nb4 Nf5 Nd3 Rh6 g7+ Kh7 g8N Rg6 Re5 Rg5 Rb5 Qa3 Ngf6+ Kh8 Ne8+ Bd4 Qec3 e1R Qcc6 Qh1 Qe6 Bd7+ Qc8 Bc6 d7 Qhf3 Kc7 Bc2 d8N Qh1 Qcd7 Bd5 N4d6 Bg2 Ne4 Bb1 Ndc6 Bc2 Nce5 Be3 Nf4 Nd4 N4f6 Bh7 Ned3 Nf5 Qec6 Rd8 a8B Ra1 Qde6 Rd5 Kc8 Re5 Kd8 Qc1 Qcd6 Qc6 Ne4 Bd2 N4f6 Ree1 Qdd7 Be3 Ne4+
1R1BQ3/bK2N1bn/1B1Q2rR/k1p2RN1/1qP3B1/r3bR2/b1r2bn1/R7 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 g4 hxg4 d4 e5 dxe5 fxe4 Kd2 d5 Ke3 Kd7 Kd4 g5 h4 a5 b4 e3 f4 e2 b6 Kc6 f5 Kb5 b7 a4 e6 g3 h5 g4 e7 g2 e8R a3 c3 g3 h6 a2 f6 Na6 b8B Be6 f7 Qd6 h7 Bg7+ Ke3 d4+ Ke4 d3 f8R e1B Bg5 Bf2 Nh3 g1B Bf6 g2 Bd8 c6 Qd2 Nc7 Rf5+ Nd5 Ng5 Ra3 Ref8 Ba7 Rh5 Bgf2 Rh6 g1B Bbc7 Ka6 Qd1 Nf4 Be2 Ng2 Bg4 d2 R8f6 Bab6 b5+ Ka5 Rf3 Bb3 c4 Qb4 R6f5 Nf6+ Ke5 c5 Kd6 Rg8 h8Q Nh7 Kc6 Be5 Nc3 Rg6+ Kb7 Bd6 Qe2 d1R Qd4 Rd2 Nd5 Rc2 Qe8 Be3 Qf6 Bgf2 Ne7 Be5 Qd6 Beg3 Rc1 a1B Rd1 Bg7 Rdh1 Ka4 Ra1 Ba7 b6+ Ka5 Ka8 Ba2 b7+ Bb6 b8R Bc3 Qf6 Rb3 Bf4 Rd2 Rc8 Rc2 Kb7 Ra3 Qe6 Be5 Qd5 Bb8 Bfc7 Be5 Qd6 Ba7 Rb8 Bg7 Bxb6+
3R1N1k/2R2K2/4Q3/2Npr3/1nN3Q1/N1nbr1P1/NRn2b1b/2qrBb1B b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Ke2 Kf7 Kd3 Kg7 Ke4 h5 Kd5 e5 f4 h4 c4 d6 g3 e4 f6+ Kh7 c5 d3 f5 d2 c6 e3 c7 b3 b6 h3 b7 h2 f7 e2 f6 e1B Bg2 b2 Ne2 Bd7 c8N Nh6 Ra2 Qc7 Nec3 Bb5 Ke6 d5 Qg4 d1R Na3 b1N Rb2 Nf5 Bd2 Bd3 Nb6 Na6 b8N Bf2 N8d7 Ne3 Nc5 Nb4 Nbc4 Nec2 Na2 Nc3 Be1 Rg8 g6+ Kh8 Rf1 h1B Rg1 Be7 f8R Re8 f7 Qf4 Bf3 Bg2 Rf1 Bh3 Bh1 Qc1 Rg1 Bhf1 g7+ Kh7 Rg2 Bg1 Rf2 Bh2 Rg2 Bd6+ Kf6 Re2 Rd8 Rge8 f8N+ Kg8 Rf2 R8e3 Rf4 Bb8 Re4 Bc7 Re7 Bb6 Rc7 Re5 Nfe6+ Kh7 Kf7 R2e3 g8Q+ Kh6 Q8g5+ Kh7 Nf8+ Kh8 Q5f5 Rf3 Nb7 Bf2 Nc5 Rfe3 Qe6
1Q1Q2k1/B2RR3/1Q2N3/N1prn3/1nb2b2/K5Br/P1Qr1bB1/1qQr2n1 b - - 0 1 legal: proof: c4 a5 e4 h5 g4 hxg4 b4 axb4 d4 f5 exf5 e5 dxe5 d5 cxd5 Ra7 Bg2 Ra6 Bf1 Ra8 Kd2 Kf7 Kc2 b5 Kb3 g5 f4 c6 h4 g3 f6 g4 d6 g2 f5 g3 d7 Qe8 d8Q Ra5 h5 Ra7 h6 Ra6 h7 Be7 e6+ Kf8 f7 Ra7 Qc2 Bg5 Nf3 g1B Nbd2 g2 Qb6 Nh6 Nd4 Ng4 Nc4 Na6 Be3 Rd7 Rd1 Ne5 Na5 Rd5 e7+ Kg7 Bf2 Be6 Bg3 Qb8 e8Q Bf4 Qc8 Bf2 f8B+ Kf7 f6 g1N Kb2 b3 Ka3 b2 Bg2 b1R Bc5 Nb4 Rh3 Rhd8 h8Q Rc1 Qh4 Kg8 Qcc7 Bf7 Ne6 Qb7 Rd3 Rd1 Nf8 Be6 Re3 R5d2 Qb8 Bc4 Qh6 R8d5 Re2 Ng6 Re7 Ne5 Bd6 c5 Q8d8 Qc8 Bb8 Qf5 Ba7 Qg6 Qh5 Qe4 Qc1 Qb1 Qf5 Re1 Rhh7 Re3+ Qd3 Rf3 Bh2 Rh3 Bg3 Na6 Qdc2 b4+ Ka4 b3 Ka3 b2 Rd7 Qa1 Rhe7 b1R f7+ Kg7 Q1b2 Rbd1 Qbc1 Qb1 Ng6 Kh7 f8Q+ Nf7 Qdb8 Nb4 Qfd8 Kg7 Nf8 Kg8 Qh6 Ne5 Qhg6+ Kh8 Qgb6 Kg8 Ne6#
Nk6/n3br2/1R5K/BQb1RQ2/3QN1q1/1P1p1BQ1/2BQ1r2/1n1b1qqb b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 a5 Kg4 d5 Kh5 Kd7 g4 Kc7 c4 h6 f4 d3 c5 h3 b6+ Kb7 g5 d2 g6 e4 b3 e3 f6 d4 f7 h2 f5 a4 g7 a3 f6 e2 Bg2+ Nc6 Nh3 e1B Nf4 a2 Bf3 Rh7 Ne6 Rb8 Nc7 Ne7 g8Q Bh4 Qg3 Nd5 Na8 Nc3 Re1 h1Q Re5 Qg1 Qc2 d1B Nd2 Nb1 Ne4 Na7 Bd2 d3 Ba5 Bd6 f8Q Rf7 Qd2 Bg4+ Kg6 h5 c6+ Kc8 c7 Bc5 Qh8 Bd7 Qf4 Bc6 Qd2 Bg5 Qg7 h4 Kh5 h3 b7+ Kd7 Kg6 h2 Kh7 Rc8 b8Q h1Q+ Kg6 Bh4 Qb5 Qh3 Kh6 Qg4 Qh8 Rb8 Qg7 Kc8 Qh8 Rf8 f7 Bhe7 Qf6 Rb6 Qfh4 Kb7 c8B+ Kb8 Bf5 Qd6+ Bg6 Qc7 Bh5 Rb7 Qf6 Qb6 Qd6+ Rc7 Qd4 Rfc8 f8Q Re8 Qf6 Rf8 Qe6 Rf4 Qf5 Qf1 Bh1 Rf2 Bf3 Rc8 Q4b4 Rf8 Qd4 Rf7 Qh3 Na3 Bc3 Be2 Bh1 Qh4 Nf6 Qg1 Qg3 Bb7 Bc6 Qe4 Bb4 Bf3 Bg4 Bh1 Bd1 Qg4 Bg2 Bf3 Bc2 Bd1 Bf3 Be2 Re1 a1Q Rb1 Qa2 Ra1 Qab1 Ra2 Qbf1 Ra1 Bcd6 Ne4 Nb1 Ra6 Bd1 Ba5 Bc5+ Rxb6+
1bK1BQ1q/1rRR4/bk2R3/1nQ4n/qQ1r2p1/RP6/4RqqN/2N1r1B1 b - - 0 1 illegal: No possible last move
Bq2BKb1/R7/2N1q2k/NRR1Qn2/rb3Pnr/nq5q/2N1p1N1/QN6 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 g5 e3 f4 exf4 Be6 Qf3 Bg4 Qd1 Bc8 f3 g4 g3 gxf3 g4 h6 g5 Qd7 Be2 Qd6 Bf1 Qd8 g6 Bg7 b3 Qd6 Bb2 Qd8 Bf6 Bf8 Bg5 hxg5 Kf2 c5 Ke3 e5 Ke4 a5 d4 g4 h4 c4 h5 a4 h6 f2 b6 c3 b4 g3 b7 c2 h7 c1N d6 g2 Kd5 e4 d7+ Ke7 g7 Kf7 b5 Kg6 Ke6 a3 b6 e3 d5 e2 d6 a2 Rh5 Nd3 Rc5 Na6 b8Q Bb7 Nf3 g1Q Bg2 f1Q Ne1 Nab4 Nc2 Qh4 d8N Ra3 d7 Nh6 g8B Qe3+ Qe5 Qhg3 Nc6 Nf2 d8N Ra4 Na5 Nf5 Ndc6 Ng4 Bf7+ Kh6 Be8 Be7 Bf3 Qfh3 Kf7 Ba6 b7 Bc4+ Bd5 Qb3 b8R Qge3 Rbb5 Qe4 Ne1 Nc2 Qdd4 Na3 Nc2 Bh4 Qg1 Be1 Qf1 Bb4 Qg1 Rg8 h8N Rg5 Ng6 Rh5 Kf8 Rh4 N6d4 Qee3 Ba8 Bg8 Ndc6 Qe6 Nge7 Q3b3 Nd5 Qc8 Nde3 Qb8 Ng2 Qe6 Nc3 Qb3 Rf1 a1Q Nb1 Qd4 Rd1 Qdc4 Rd7 Qe6 Ra7 Qd8 Qgd4 Qb8 Qa1
bR2r3/2nn1NqN/B2R1Q2/Qb1NP1q1/6Rb/1k1BN1bK/1pn5/N2r4 b - - 0 1 illegal: No possible last move
5kr1/3B3Q/1Nn1BbB1/2pR2Nr/r1Rnqb1q/3N1N2/N5P1/K2Q2nn b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h3 Bf5 b3 Bg4 hxg4 Ke7 Ba3+ Ke8 Bd6 f3 Bf4 gxf4 Qc1 f2+ Kd1 Qf6 Kc2 Kd8 Qd1 Ke8 Kc1 Qd8 Kb2 f5 d4 h5 e4 a5 b6 c5 b4 h4 g5 h3 d6 h2 g6 f3 b7 f4 d7+ Ke7 b5 a4 b6 Nh6 g7 Ra7 g8B Rh7 e5 Ra5 d5 Qc7 d8N Na6 b8N Qb7 e6 Nb4 Nd7 Nc6 Nc3 Nf5 Bb5 f1Q Rc1 f2 Nf3 a3+ Ka1 a2 Nf7 Nfd4 N7g5 Bh6 Nde5 Ra4 d6+ Kf8 d7 Qc4 Nd3 f1R Bf7 Qa8 b7 Rh8 b8N Rg8 Rg1 h1N Bg6 Qb4 Bc4 Re1 Rf1 Re5 Re1 Rf5 Re5 Qab7 Rd5 Re5 Ng1 f3 Qc2 f2 N1f3 f1N d8Q+ Kg7 e7 Nfg3 e8B Nge2 Qb1 Ng1 Nd7 Qa8 Nb6 Kf8 Qc7 Qd8 Bd7 Qe7 Nh3 Rh5 Nhg5 Qe4 Qb3 Qh4 Qd1 Qe4 Re5 Qh4 Bce6 Qe4 Rd5 Qc4 Kb2 a1B+ Kb1 Bb2 Na2 Qb4 Rc4 Qbe1 Nh3 Bf4 Nhg5 Qh4 Qa7 Nb3 Qb7 Bf6 Qc7 Nbd4 Ka1 Rgh8 Bde8 Rg8 Qh7 Qg4 B8d7 Qh3 Nfe5 Qh4 Nef3
B1r4R/bKb1n1kR/2Bp4/1RP2r2/Q1R4N/8/r3BN1r/qn1QbRq1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Qb6 f4 Kd8 f5 Bb7 Bf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ke8 Nh3 Qc7 Ng1 Qd8 Ke2 Kf7 Kd3 h5 Ke4 e5 Kd5 a5 c4 d3 b4 d2 b6 a4 b7 d6 g6+ Ke8 b5 h4 f7+ Ke7 b6 Kf6 g5+ Kg7 Nh3 f3 Nf2 a3 Be2 Be7 f8R Nd7 Kc6 e4 b8Q e3 b7 a2 Qa7 h3 b8R h2 Kb7 Qa5 Rfc8 Bd8 Rf1 Qe5 Qaa4 h1R Rc5 Ne7 f6+ Kf8 f7 Nb6 Rb5 Kg7 f8R Nbd5 Rf4 R1h2 Rh4 Nc3 Rh7+ Kg8 g7 Qc5 Qe1 d1Q Nd2 Nb1 Rc8 Kf7 g8B+ Kf8 Rc6 Bc7 g6 Qg5 Rh1 Qg1 Bd5 Rg8 Rh8 Kg7 Be4 Qc1 Qed1 Rgc8 Rcc5 Qc3 Bc6 Qf6 Nfe4 f2 Nf3 f1R Nh4 Rf5 Nf2 Nc3 Rab1 a1B Rc1 Nb1 Rh7+ Kg8 g7 Bd4 Rh8+ Kf7 g8B+ Kg7 Bgd5 Ra6 Qdc2 Ra5 Rf1 Raa8 Qd1 Qe5 Qac2 Ra2 Qa4 Qf6 Rb4 Qe5 Rcb5 Ba7 c5 Qb2 Rc4 Qa1 Bef3 e2 Bg4 e1B Be2 Rf7 Nf3 Rd2 Ka6 Ba5 Bd7 Rh4 Ba8 Bc7 Bdc6 Rf5 Kb7 Ra2 Rh2 Re4 R2h6 Rh4 Rh5 Rh1 Nh4 Rh2 R5h7+
qk2q1QR/nB2nQ2/2p1bnbK/1NN5/2n2P2/2N1N2N/R1R3rr/3B1r2 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f5 axb5 fxe4 Nf3 g4 Ng1 g3 h4 Nh6 f3 Nf7 b3 Bf5 Ba3 Bc8 Ke2 Nc6 Bc5 Na5 Bf2 gxf2 g4 Nh6 g5 Ng8 g6 Bh6 Rh3 Nc6 Rh1 Bg5 hxg5 Nb8 Ke3 Kd7 Kf4 h5 d4 a5 g7 e3 d6 c6 g6 h4 Kg5 a4 b6 e2 d5 e1N f4 a3 b4 h3 b7 a2 b5 h2 b6 Rh3 Nc3 Nd3 Qh5 Ne5 Ba6 Re3 Nh3 Nf6 g8N f1N g7 Ng3 Rhc1 h1B Kh6 Be4 Rc2 Qe8 Qf7 Kd8 d7 Nf5+ Kg5 e6 Ne7 Nc4 g8B e5 Bh7 Rf3 Bg6 Ra7 Bh5 Rf2 Bd1 Rh2 Kg6 Bd3 Kg5 e4 Kg6 Ng3 Kh6 e3 Nf5 e2 Ne3 e1R Rac1 a1Q Ra2 Na3 Rcc2 Bg6 Qg8 Ke7 d8R Nbd7 b8Q Ne5 b7 Nec4 Qc7+ Bd7 b8N Nb5 Bc8 Rf1 Na6 Rb7 Nc5 Na7 Qb6 Kd6 Qb3 Kc7 d6+ Kb8 Qf7 Bdf5 d7 Rb6 Qg8 Be6 Bb7+ Kc7 Ra8 Ra6 d8N Nf5+ Kg5 Ra3 Nf7 Ne7 Kh6 Ra4 Nd6 Ra5 Nd3 Rg5 Nc5 Rgg2 Rd8 Bc8 Ndb5+ Kb8 Rdd2 Be6 Rd7 Ned5 Rh7 Ne7 Rh8 Nac8 Rab2 Qa8 Ra2 Na7 Qf7 Nb2 Qd5 Nc4 Qg5 Bgf5 Qgg7 Bg6 Qgg8
1r2B2n/2q1rq1P/K2NQB1k/p1rb3N/1R1b4/n4b1N/1r6/RN2NQ1R b - - 0 1 legal: proof: b4 b5 e4 c5 g4 d5 c4 f5 exf5 h5 cxd5 hxg4 a4 cxb4 axb5 Bd7 Bc4 Be6 Bf1 Bc8 Ke2 Kf7 Kd3 a5 Kc4 e5 h4 g5 d4 Kg7 f4 e4 h5 b3 b6 g3 Kb5 g2 b7 e3 d6 e2 f6+ Kh6 f7 e1R d5 b2 f5 Ra6 d7 Qf6 d8N Bb4 f8N Nd7 b8R Nb6 d6 Bc3 d7 Bb7 Nh7 Bf3 Ne6 Nc4 d8N Ne7 Nh3 g1R Nd4 Rc6 Qe2 Rg2 Qe6 Rc5+ Ka6 Ng6 Rb4 Na3 Bb5 Qf7 Nb7 Rb8 f6 Nh8 Nc2 Bd4 Nd6 Re3 Bc6 g4 Ne1 g3 Be8 Re2 Bd2 g2 Bc3 g1Q Qc8 Rh2 Qe6 Qc7 f7+ Qg6 Nf6 Rc2 f8Q+ Qgg7 Qfg8 Qgf7 Qg1 Rg2 Qf1 Rc2 Nd2 b1B Bb2 Ba2 Nb1 Bad5 Bc3 Kg7 h6+ Kg6 h7 Kh6 Bb2 Ree2 Bc3 Rb2 Nh5+ Qg6 Qc8 Qgf7 Qg4 Re7 Qe4 Bg1 Bf6 Bd4 Qe6
R1Bbr1B1/1K3P2/N1r1b1nB/3QQ2p/2q2b2/1B2b1Rq/1B2Nk2/3N1q1n b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 d5 cxd5 f5 e4 fxe4 a4 axb4 axb5 Bg7 Qf3 Bh6 Qd1 Bf8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 d4+ e3 g4 e5+ d6 h5 g6 b3 g5 e4 g7 b2 d5 Rh6 b6 Nd7+ Kc6 Ndf6 g6 Ng4 b7 Be6 b8N Be7 d7 Qc8 d6 Bd8 Nc3 b1Q Bb2 e2 Qe1 e3 Rh3 Qc2 Na6 Qb3 f3 Nf2 Rg3 Nh1 Bh3 Qb4 Ra5 Rb8 Qa1 e1Q Ra3 Qf1 Nge2+ Ke5 Qe1 Qg4 f4+ Kf5 Na2 Ke4 f5 Qgf3 f6 Ne7+ Kc5 c6 g8B Qc7 g7 Ng6 Bg4 Qh3 Qa5 Qff1 Nac3+ Kd3 Ra2 Kd2 Bf7 Ke1 g8B Kf2 Ra4 Qc8 Qc7 Ra8 Kb6 c5 Kc6 c4 Ra1 Be7 d8B Rb8 d7 Bc5 Nf4 e2 Ra4 e1B Nfe2 Be3 Be7 Ba7 d8Q Be3 Bf8 Bf4 Qd1 Bed2 Bg7 Bde3 Qd5 Ra8 Nb4 Rb8 Ra8 Bb6 Bf8 Qa6 Bf5 Re8 Qce5 Qa2 Bg7 Bd8 Na6 Qa4+ Kb7 Qb4+ Nb5 c3 Bf8 c2 Bg7 Qc4 Nbc3 Rh7 Bh6 c1B Bg4 Bce3 Bf5 Bd7 B7e6 Rg7 f7 Rh7 Bc2 Rh8 Bg4 Re6 Bgf5 Rc6 Bb3 Be6 Qdd6 Bd5 Bc8 Be6 Qd2 Bf5 Qdd5 Be6 Bh7 Rf8 Bg8 Re8 Nd1+
3Bn3/1b5N/1P3Q1r/2N3Nk/2n1qBRp/Q4n2/1Rr1nNb1/Nb1KBb2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Bb4 g6 Ke8 Bg2 Be7 Bf3 Bg5 hxg5 exf3 b4 h5 e4 c5 d4 f5 b6 a5 b7 a4 e5 a3 e6 h4 g7 c4 d6 c3 g6 c2 d7+ Ke7 b5 Kf6 e7 Kg5 e8N a2 d5 Ra5 d6 Qc7 d8N Ra7 b6 Nd7 b8B Kh5 Ne6 Ne5 d7 Qc6 d8B Bb7 Ng5 Nc4 Qd4 Nf6 g8N Rh6 Bd2 c1N g7 f2+ Kd1 f1B N1h3 f3 Be1 f4 Rh2 f2 Nd2 f3 Nb3 Qe4 Nc7 Ne8 Na6 Ne2 Qf6 Bg2 Nac5 f1B Bf4 f2 Rc1 Ra3 Na1 Rc3 Rb1 Rc2 Rb4 Ng1 Rb2 Bd3 Rb4 f1B Nf2 Ne2 Rb2 Nd2 Rh3 Nf3 Rg3 Rc4 Rg4 Bb1 Ne7 Rc2 g8Q Bd5 Ng6 Bb7 Nab3 a1N Nf8 Bd5 Nfh7 Bb7 Nd2 Nb3 Qgf8 Na5 Ndb3 Nc4 Na1 Qe6 Q8e7 Qc6 Qe3 Qe4 Qa3
rR2k2B/1Qq3Qr/5Rr1/1B1b2P1/N2b2pb/5qr1/B1r5/1NB1KBnR b - - 0 1 illegal: No possible last move
2RrqNnk/1BR2b1B/2n1B1r1/2Pq2Q1/KnR3n1/5p2/4Q1nN/B2B2q1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 d4 cxd4 f3 e5 f4 exf4 axb5 a4 Bd2 Bc5 Be3 Bb6 Bc1 Ba5 bxa5 Ba6 Qd2 Bb7 Qd1 Bc8 Kd2 Kf8 e4 Kg7 c4 h5 Kc2 f5 g4 d5 e5 h4 c5 a3 Kb3 a2 a6 d3 a7 d4 e6 d2 g6 f3 e7 d3 e8B f4 b6 h3 g5 h2 b7 f2 Na3 Qd6 Ka4 Rh3 Qe2 d1N Nf3 d2 Nc2 Ne3 Bd7 d1Q Be6 Nh6 Bb2+ Qe5 Rc1 Ng2 Ba1 Qe1 Ncd4 Qd5 Rc4 Nc6 b8R Kh8 Rg1 h1Q Nh2 f3 g7+ Kh7 g8B+ Kh8 g6 Rg3 Bh7 Ng8 Rb7 Bd7 Rc7 Rd8 a8B Be8 Bb7 Bf7 Qd1 Rg5 Be2 f1N Qc2 Nfe3 Bd1 Ng4 Qe2 N2e3 Rg3 Ng2 Rh3 Qhg1 Rh4 N4h6 Rf4 Ng4 Rf6 Be8 Rf8 Bf7 Re8 Rd6 Rec8 Rd8 Bc3 a1N Bb2 Kg7 Bc3 Nc2 Ba1 Kf6 g7 Rg6 Bf5 N2b4 Ne6+ Qc3 Nf8 Qce5 Rd4 Qe7 Be6 Qe8 Rc4+ Qe5 Qe1 Rg5 Bhf5 Nge7 Rc3 Qd5 g8Q Rg7 Qe2 Rg5 Qh7 Ng8 Qh4 Kg7 Bh7 Rg6 Qg5 Kh8 Rc4+
Q2b1qRq/K3nn1P/RN3R2/3Bq3/p1R3qb/2qRQ2N/2r4n/k4NB1 b - - 0 1 legal: proof: f4 e5 d4 exf4 g4 c5 a4 cxd4 Bd2 h5 Be3 b5 axb5 h4 Bc1 a6 h3 g5 Qd2 a5 Qd3 Rh5 Qd1 Bb7 Qd3 Bf3 gxh5 g4 Qd2 g3 Qd1 Bg4 hxg4 Ra6 Qd3 Rh6 Qd1 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 f5 e4 g2 b6 d5+ Kb5 h3 c4 h2 g5 d3 g6 Kd4 h6 f3 c5 f4 g7 d2 h7 f2 e5 f3 e6 Nc6 Ka6 Nh6 g8R Ne7 c6 Nf7 Qe2 d1Q c7 Qb3 c8R Qc3 Nh3 g1B Bg2 f1Q b5 Bf2 b7 Bh4 b8N f2 b6 a4 b7 Bh6 Ka7 B6g5 Ra3 Qdc7 Rb3 Qe5 Nd2 Bf6 Rg1 h1Q Nd7 Qhh2 b8Q Qhg3 Rg6 Qg4 Rc7 Rc8 Qa8 Bfg5 Ba3 Qfa1 Rc6 f1N Rf6 Nh2 Nf1 Qgf5 Qe1 Kd3 Bb4 Kc2 Qe3 d4 Bd5 d3 Nb6 d2 Rc4 d1Q Bc5 Qdg4 Ra3 Kb1 Rb3+ Qcb2 Rd3 Qbc3 Bd4 Qab2 Rg3 Ka1 Rg1 Ng6 e7 Qff2 e8R Ne7 Rg8 Qff4 Re6 Qh8 Rgg6 Qbb4 Ref6 Qe5 Rg2 Qbd6 Rg3 Qdd8 Rg8 Qf8 Rgf3 Rc5 Re6 Rc6 Rff6 Qb2 Rcc3 Qgf4 Qc1+ Qb1 Rf5 Qg4 Nd7 Ng6 Bg1 Bd8 Rff6 Ne7 Qe3 Qc1 Rc5 Rc8 Ra6 Qcb2 Nb6 Qb3 Rb5 Rc2 Rb4 Qbc3 Rc4
4q1qr/Pb1b3b/2NrQ1N1/1Bbnb3/1p4Q1/RRR5/1NR2k2/1K3BqR b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Ra7 h4 Be6 h5 Ra8 Bb2 Bc8 Be5 Nc6 Bf4 gxf4 g5 Ne5 Bc4 Qd7 Bf1 Ng6 hxg6 Qd8 a4 Kd7 d4 Kd6 Kd2 b5 Kc1 e5 a5 h5 f7 c5 a6 e4 g7 h4 g6 b3 a7 b4 f6 f3 Nh3 f2 Ra3 c4 Nf4 h3 Qg4 e3 Nd2 e2 Kb1 Ne7 g8B c3 g7 b2 Ng6 h2 Rb3 Bd7 Nc4+ Kc7 d6+ Kc6 d5+ Kc5 Qe6 Kd4 Bh7 e1B g8Q Qe8 Ra3 Bg7 f8R Rd8 f7 Be5 Qg7 Ke4 Rg8 Kf3 f8R+ Kg3 Rf4 Bd2 Rg4+ Kf3 Rg2 Be3 Rb3 Bc5 Ra3 Ba4 d7 Bb5 d6 Nd5 Nf4 Bc6 Bhd3 Bb5 Ng6 c2+ Ka2 c1Q Rc3 Qf4 Kb1 Qff8 Rb3 Ra8 d8R Bd7 Rc8 Rh6 Rh8 Qg8 Rc6 Rc8 Ra6 Rc6 Raa3 Rh3 Rh4 Ra6 Re4 Rh8 Re1 Rc6 Rc1 Rb6 Rcc3 Rc6 Ka2 b1B+ Ka1 Rb6 Nb2 Ke3 Bb5+ Bd3 Be2 f1Q+ Ka2 Qf2 Bf1 Qg1 Rgc2 Rc6 Be2 Kf2 Bf1+ Ke1 Kb1 Rb6 Ne7 Bh7 Qgg4 Rc6 Bbe2 Kf2 Ng6 Bc8 d7 Rd6 d8N Bd7 Nc6 Qg2 Rg1 h1B Nb8 Qg3 Nc6 Be4 Rh1 Qg1 Nh4 Bd3 Ng6 Ba6 Nd8 Bac8 Nc6 Bb7 Bb5+
b1b1q2R/1R4KB/QnQ2Q2/2rb2b1/P3pQ2/1b1B2b1/kR5N/1bQN2r1 b - - 0 1 illegal: No possible last move, all moves rejected
N1RbQ3/Q2r1B1q/K1pn2Qr/3Q2Q1/4q2P/2r1Rn2/k1Nr4/n2B1R1q b - - 0 1 illegal: No possible last move, all moves rejected
1N1n4/3BqRBP/QkN3b1/1q6/Br1bq1RN/1N2NQ2/3p2b1/3Knnb1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 d4 cxd4 exf5 Bb7 Nf3 Ba6 Ng1 Bc8 g4 h5 Rh2 a5 Rh1 Ra6 Bd3 Rah6 Bc4 gxh4 Bd3 h3 Be2 h4 Bf1 Rh5 gxh5 Bb7 Nc3 Ba6 Nb1 Bc8 b4 e5 f4 d5 c4 Kd7 b6 Kc6 b7 h2 c5 h3 h6 d3 b5+ Kc7 c6 a4 f6 a3 f7 e4 f5 a2 h7 e3 f6 e2 Qa4 d4 Nf3 Qd7 Nh4 Qe7 Rg1 h1B Nc3 h2 Bh6 Bf5 Qa6 Bg2 Bg7 h1Q Nd1 Bg6 Ne3 Nh6 Rb1 a1B b6+ Kd6 c7 Kc5 c8B Nf5 Rb4 Ng3 Bd7 Nc6 b8N Nd8 b7 Bb2 Kd2 e1N Kd1 d2 Bfb5 Nf1 Nc6 Bc3 b8N Ba1 Qa2 Kb6 Ra4 Rg8 Ra7 Bb2 Ba4 Rh8 Nf3 Qh5 Qe6 Qb5 Nh4 Bc3 Qd6 Qe4 Qa3 Bc5 f8N Bb2 Ne6 Re8 f7 Re7 Bc8 Rb7 Qd3 Bc3 f8Q Ba1 Ke2 Bb2 Qf3 d1Q+ Kf2 Qdb3 Ke2 Q3b4 Bd7 Bc3 Qc4 d3+ Kd1 d2 Ned4 Qe7 Nb3 B3d4 Nc1 Qb1 Qce2 Qbe4 Nb3 Bh3 Rg4 Bg2 Nef5 Bg1 Ne3 Bd4 Ra5 Qa6 Rf5 Qb5 Rf7 Rc7 Na7 Rc4 Qd3 Rb4 Qc4 Q4e5 Qc8 Qf4 Nac6 Qfe4 Qa6+
1n2n2R/1R1R2N1/4q1b1/1n1BNr1p/QR1rn1QK/P1n1k2Q/5nq1/6BR b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 g5 f4 gxf4 h4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 Kd7 d4 Kd6 a3 e5 f6 h5 f7 c5 f8R b5 g7 e4 g6 f3 Kg3 e3 Bb2 b3 Rf4 c4 Rf7 f2 Nd2 e2 Rc7 e1Q Ngf3 c3 Qb1 b4 Qd1 c2 Ng5 c1N Ndf3 Ra5 Ne6 Nf6 g8Q Ne8 g7 Nd3 Bg2 f1N+ Kh3 Ng3 Rb1 Rc5 Rb7 Ne4 Ne5 Qg5 Ba1 b2 Qa4 b3 Qf8+ Qe7 g8Q Qg1 Qf3 Rc4 Qg5 Ndf2+ Kh4 Rf8 Qh3 Rf5 Ng7 Qe6 Qgg4 Bd7 Bf3 Qg2 Rb4 Nc7 Rb7 Be8 Rb4 Bg6 Rb7 Ke7 d6+ Kf6 d5 Ne8 d7 Rb4 d8R Rd4 Rbf1 b1N d6 b2 d7 Nbc3 Rb1 Nb5 Rc8 Qf1 d8R Qg1 Rdd7 Qg2 Rbc1 b1N R1c4 N1c3 Rb4 N8d6 Rh8 Ne8 Nd3 Nd2 Bd5 Nde4 Ne1 Ke5 Bb2 Rc4 Nd3+ Kd4 Bc1 Qe5 Bf4 Qe6 Bg3 Ke3 Ne5 Rd4 Bh2+ Kd2 Nf3+ Kd3 Bg1 Ke3 Ne5+
R3R1nn/B1N3BQ/3Qb1p1/2NB1b1P/1n1qR2k/K4B2/1n3rn1/1q2Bn2 b - - 0 1 legal: proof: f4 b5 d4 c5 h4 cxd4 a4 a5 axb5 e5 h5 exf4 h6 f6 Na3 g6 Nb1 Ra7 g3 f3 Ra2 Bg7 hxg7 h5 Bh3 h4 Bg2 h3 Ra1 Rh4 gxh4 Rc7 Bf1 Rc5 Be3 Rh5 Bc1 Rh8 Kd2 Ke7 e4 d5 b4 h2 c4 f5 Kc2 Kf6 Kb2 d3 c5 f4 h5 Kg5 c6 f2 b6 d2 c7 d4 b7 d3 b5 f3 b6 a4 e5 Be6 c8Q Nc6 b8B Qc7 b7 Nd8 Ne2 Qc4 Nec3 Qf4 Ka3 Nf7 Qd7 Qd4 Bb2 Kh4 Be2 f1Q Ba7 f2 b8B Qg1 Qb7 f1N Bf3 Rh7 Ne4 Nh8 Nbc3 Bf5 Qc2 d1N e6 d2 e7 Nde3 e8R d1N Nc5 Ng2 Nd5 Be6 Bc3 Nb2 Be5 Bf5 Qd3 Be6 Ka2 a3 Qda6 Bf5 Qd6 Be6 Kb3 a2 Ka3 Bf5 Re1 a1N Nc7 Nc2+ Ka2 Nf6 g8B Nb4+ Ka3 Rf7 Ra1 Rf8 Bgd5 Ng8 Bg7 Rf6 Bfe4 Be6 Be1+ Rf2 Bf3 Nfe3 Bc3 Qb1 Re1 h1B Re2 Nf1 Re4+ Nf4 Be1 Bg2 Qb5 Bgh3 Qbd7 Bhf5 Be5 Bg4 Qh7 Ng2 Bg7 Qc2 Rd1 Qb1 Ra8 Bf5 Rd2 Be6 Rde2 Bf5 Ree8 Be6 Re5 Bgf5 Re4+
1k3Br1/4P3/N5R1/nn4q1/3R1Qnp/1b4B1/rrrNn1Q1/B1B1rBQK b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 b4 Kd7 d4 f5 e4 c5 g6 Kc7 g7 h5 b6+ Kb7 e5 a5 b5 c4 d6 a4 e6 f4 d7 a3 d5 a2 d6 f3 Nd2 g2 Kf2 c3 Nh3 g1N Nf4 h4 Nd5 c2 Nc7 Qg5 d8B Ne2 d7 Nf6 g8Q Nd4 Kg1 g3 Be7 g2 d8B Nbc6 Bf8 Ng4 Bf6 Kb8 b7 Na5 e7 Be6 Rh3 Bf7 Rg3 Bb3 Rb1 a1R Qe2 Bd5 Rb4 Rb1 Be5 Rb2 Ra4 Nf5 Rd4 Nd6 Qg6 Bb3 Qe1 Ka7 b8B+ Kb7 b6 Nb5 Qf2 Rg8 Bh8 Nh6 Kh2 g1N Qg2 Ne2 Kh1 Ng4 Qg1 f2 Qe4+ Nc6 Qeg2 Raa2 Bhg7 Qd5 Bf6 Na5 B6g7 Nf6 Rg6 Ng4 Ne8 Kc8 Bg3 Qg5 Nc7 Kb8 b7 Rb1 Bb2 c1R Ba3 Rc4 Bc1 Rbb2 Rd7 Rb1 Ba1 Rbb2 Rd4 Rcc2 Q1h2 Nec3 Bd3 f1R+ Qhg1 Re1 Bf1 Ne2 Ne6+ Ka7 b8Q+ Ka6 Qf4 Ka7 Nc7 Kb8 Na6+
3b2bQ/4QPB1/1n2Rp1n/3bn1n1/3K2NN/2Nn1rr1/NNR3B1/b5Bk b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 f4 f6 f5 Kd7 e4 Qe8 e5 Qd8 e6+ Kd6 Qh5 Qe8 Qe2 Qf7 exf7 Kd7 Qg4 e6 Qa4 exf5 Qd1 f4 Ke2 Kd6 Kd3 Ke5 g4 c5 b4 a5 b6 h5 d6 a4 b7 f3 b5 Kf4 g5 Kg3 d7 a3 d8N f2 b6 h3 g6 c4+ Kd4 h2 g7 h4 Qe1 a2 Nc6 h3 Nf3 c3 Nb4 c2 Bg2 Nd7 b8N Ne5 b7 Be7 N8c6 Bf5 b8Q Ra3 Nh4 Nh6 g8N Bh7 Nc3 Bd8 Na5 Rb3 Rf1 h1B Nc4 Kh2 Nb2 Ra3 Rb1 a1B Nba2 Rb3 Rg1 f1N Qe2 Ne3 Re1 Nc4 d3 Ng4 Bh6 c1N Bg7 Nb6 Nh6 Rg8 Qe4 Ra3 Re2 Kg1 Rc2 h2 Qeb7 Rb3 Qe7 Ra3 Bh8 Rg5 Bg7 Bg8 Qa8 Ne3 Ng4 Nf5+ Kc5 Rg6 d4 Nh6 d5 Rg5 d6 Rg6 Ne3 Rg3 d7 Rb3 Ng4 Rf3 Bf1 Ncd3+ Kd4 Bg2 Rbc1 h1N Re1 Ng3 Re3 Bh1 Bg2 Ne4 Ree2 Ng5 Re4 Ng6 Re6 Nge5 Qb8 Bc7 d8B Rg3 Bh3 Bd5 Bg2 Rf3 Qd7 Ra3 Be7 Bd8 Bc5 Bc7 Qf8 Bd8 Qde7 Rg3 Bf1 Kh1 Qfe8 Bh7 Qh8 Bg8 Bg2+ Kg1 Ne4 Rc3 Bf8 Ne1 Bg7 Rcf3 Nec3 Bb7 Nb5 N1d3 Kc3+ Nf2+ Be3 Be4 Kd4 Bd5 Bh3 Kh1 Nbc3 Nfd3 Bg1 Nbd7 Bf1 Nb6 Bg2+
nq6/3K2B1/3p2nB/1BRqqP1n/2Q1Qr1B/1b4N1/kBNnn2R/3n3Q b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 f4 c5 h4 cxd4 e4 fxe4 f5 Ra7 Ne2 Bh6 Ng1 Rc7 f6 Rc5 Qe2 Re5 Qd1 Rf5 gxf5 g4 Nd2 Be3 Nb1 Bg5 hxg5 Qc7 Ra4 Qb6 Ra1 Qd8 Kd2 h5 b4 e5 c4 d3 Ke3 d2 g6 a4 g7 g3 c5 h4 c6 a3 b6 h3 b7 d6 b5 a2 b6 g2 c7 Kd7 f7 Kc6 f8B Kc5 Nf3 Kb4 Nc3 g1N Bb5 h2 Nd4 Nf6 g8Q Be6 c8Q Rh4 Qgg4 Nbd7 b8B Bb3 b7 Nb6 Nf3 Nh5 Rb1 a1N Ba7 Na8 b8B Ne2 Bb2 Qc7 Qg2 Rf4 Bd4 Qa7 Bc7 Qb8 Ba4 Kc4 Rc1 Kb4 Qdf1 Kc4 Bh6 d1N+ Kd2 Kb4 Ne1 Kc4 Nc2 e3+ Ke1 e4 Bdg7 Ba2 Qe8 Nb3 Bd8 Nd2 Bb5+ Kb3 Qh8 Qb7 Bh4 Qb8 Rg1 h1Q Qc8 Qh2 Rh1 Qh3 Rh2 Qf3 Qgh1 Qg2 Bh8 Qg8 Qfg2 Qd5 Qc7 Nc4 B8g7 Ne5 Qf7 Ng6 Qg8 Nd4 Qf3 e2 Kd2 e3+ Kd3 e1Q Ne4 e2 Ng3 Qa5 Qe4 Qe1 Bd7 Qa5 Bc6 Qc5 Bb5 e1N+ Kd2 Nef3+ Kd3 Bb1 Qge6 Ka2 Qc8 Qe5 Qc7 Ne2 Qc8 Qg1 Kc4 Nd2+ Kb4 Qe3 Qcc4+ Qb3+ Ka5 Qc7+ Ka6 Qcc5 Kb7 Qcd5+ Qc6 Qb4 Kc8 Qbb3 Kd7 Qb4 Ne1 Bc2 Qcc4+ Bb3 Rc2 Qa5 Rc3 Qb6 Nc2 Qb8 Qcd4 Ne3 Rc5 Nd1 Qc4
qq5k/1b5N/6NP/B1bNR2K/n2Qbq1B/B1Q3q1/p4br1/1BB2qR1 b - - 0 1 legal: proof: e4 f5 a4 fxe4 g4 h5 d4 c5 Bg5 cxd4 Bc1 b5 axb5 h4 Qe2 a6 Qf3 Rh5 Qd1 Rh8 h3 g5 Qd2 a5 Qd1 Rh5 Kd2 Nc6 Ke1 Ne5 gxh5 g4 Bc4 g3 Bf1 Ng4 hxg4 Ra6 Rh3 Rh6 Rh1 Rh8 Ke2 Kf7 b4 Kg7 c4 d5 f4 e5 b6 h3 g5 g2 b5 h2 g6 a4 b7 a3 b8B e3 Kf3 a2 f5 e2 Kg4 e1Q b6 d3 c5 d4 c6 d2 b7 e4 c7 e3 Bd3 e2 Nf3 g1B Ne5 Be7 Nc3 Qf2 Nd5 e1Q Bb1 d3 Ba7 Bh4 b8B Ne7 Bb6 Rg8 h6+ Kh8 Kh5 Bb7 c8Q Qf4 f6 Bhf2 Qc3 Nc8 Ba5 Nb6 f7 Na4 f8B Qc7 Qg4 d1B Bfa3 d2 Ba7 Bc2 g7+ Kh7 Qd7 Qb8 Ng6 Be4 Bd4 Qee3 Bf6 Qeg3 Bh4 d1Q+ Qg4 Qdd3 Qd1 Qf1 Qdd4 Re8 g8N Rf8 Ne5 Kh8 Ngf6 Rg8 Nh7 Rg4 Qdd3 Bc5 Qdd4 Bf2 Rg1 h1Q Qc2 Qa6 Qcc3 Qaa8 Re1 Qf1 Re2 Qge3 Re1 Rg2 Ng6+ Kg8 Re2 Qeg3 Re1 Bf5 Re6 Be4 Re5 Qe1 Bd3 Qfe3 Bd2 Qef4 Rd1 Qh1 Bb1 Qe1 Bdc1 Qe2+ Qf3 Qd3 Rg1 Qf1 Ngf8 Kh8 Qb3 Qfa6 Qbc3 Qf1 Ng6+
b1q1b2B/1BB2RPK/b3k2B/b2R3q/7N/rp3Qb1/1b1B2r1/1NR1Q1r1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 Ba3 g5 Bb2 f4 Bc1 Ne7 h3 Nf5 gxf5 Nd7 h4 g4 Qb3 Nc5 Qc2 Ne6 Qd1 Ng5 hxg5 Bd6 Bg2 Bc5 Bf1 Bf8 Kf2 Kf7 d4 c5 a4 b5 e4 h5 a5 h4 a6 h3 e5 b3 d6 b4 g6+ Kg7 d7 c4 a7 c3 d5 c2 e6 Kf6 d6 h2 e7 b2 e8R b3 Ba6 Bb7 Re7 Qc8 d8B Rg8 Bd2 c1B d7 Bg7 Bc7 g3+ Kf1 g2+ Kf2 Bc6 d8B Be8 Bb7 Bf8 Ra5 Rg7 Nc3 b1B Qe1 Be4 Rd5 Bb2 Nb1 Rg8 Ne2 Bh6 Nd4 Bg7 Rf1 h1Q Rg1 Qh5 Rf1 Kg5 f6+ Kg4 f7 Be5 f8B Kg5 Bda5 Kf6 Nf5 Bd6 Rg7+ Ke6 Bd2 Bb4 Rgd7 Ba5 Nh4 Rg7 Rh1 Rg8 Bh6 g1B+ Kf1 f2 Rf7 Rg7 Bf6 Bh2 Bd4 Rg8 Bh8 Bg3 Rg1 Qg5 Ke2 f1R Rh1 Qe5 Rg1 f3+ Ke3 f2 Rh1 Qh5 Rg1 Rb8 a8Q Bg2 Rh1 Rg1 Kd3+ Be4+ Ke3 f1B g7 Ba6 Bb4 Rf8 Bd2 Bf2+ Kf4 Rg2 Qa7 Ra8 Qae3 Ra7 Qf3 Ra8 Rff5 Rf6 Rf1 Rfg6 Rf7 R6g3 Qee3 Rg1 Rc1 R3g2 Qe1 Qg6 Rg5 Bg3+ Kg4 Qf5+ Kh5 Qh3 Rf5 Ra7 Kg6 Qg4+ Kh7 Qh5 Bc6 Ra8 Bb5 Ra7 Be2 Beb7 Rd5 Ba8 Qff1 Bb4 Rd3 Bab5 Qf3 Ra3 Rdd7 Ba5 Rd5 Ba6 Bb5+ Bbe5 Bc6 Ra1 Bb7 Ra3 Be3 Bb2 Bd2+
1n4BB/kN3RQB/1b3rN1/B2PK1N1/2qpB3/Rq1p3b/5rq1/bn5Q b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 g5 hxg5 b5 axb5 Qf6 Ra5 Qe7 Ra1 Qd8 c4 d5 d4 c5 Ra3 cxd4 Ra1 d3 Rh6 d4 Rh1 Qd5 cxd5 Be7 Nh3 Bd6 Ng1 Bf8 Kf2 Kd7 Kf3 Kc7 Ke4 Kb6 b4 a5 g4 f5+ Ke5 h5 e4 a4 g6 a3 g5 h4 g7 a2 g6 h3 Ne2 f3 Nf4 f2 Nc3 h2 Bd2 Na6 Bg2 Rb8 Rf1 Ne7 g8B h1Q g7 Be6 Ng6 f4 Bh7 f3 g8B Kb7 b6 Nf5 b5 Nh4 Qe1 Ka8 b7+ Ka7 Qb1 Rd8 b8N Be7 Nd7 Nb8 Nc5 Rd6 Nb7 Bh3 Qc1 Rf6 b6+ Ka6 Be1 Bc5 Qh6 Qg1 Qg7 Qh1 Nd6 Qg1 b7 Ka7 Bh1 Qg2 Bd2 Na6 Be1 Bb6 b8B+ Ka8 Bc7 Nb8 Nb7 Ka7 Bd8 Nf5 Bd2 Nd6 Bf4 Nb5 Bh6 Bc5 Ba5 Na3 Bg5 Bb6 Bh4 Rf4 Bf6 Nb1 Nb5+ Ka8 N5d6 Ka7 Nf7 Rf5+ Kd6 Rf4 e5 Rf5 e6 Rf4 Rd1 f1Q e7 f2 e8Q Rf3 Rc1 Qd1 Rc7 f1Q Ng5 Qb3 Qe4 Rf2 Ke5 Qc1 Rf7 Qcc4 Qe1 Qf1 Be4 Qg2 Nf4 Qca4 Qh1 Qac4 Bhf5 Rh5 Bfh7 Rh4 Ng6 Rhf4 Qh6 R4f3 Bh8 Rf6 Qg7 Nd2 Rc1 a1B Rc2 Nb1 Ra2 Bf5 Ra4 Bh3 Ra3
N4n1B/1b1k1r1r/1B2p3/PN1BK3/1Bq1b1RR/prQ4R/1Bn3bQ/1q6 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Bg7 Qc2 Bc3 Qb3 bxa4 Qd1 a3 Qc2 a4 Qd1 Bd4 Ke2 Bb6 Ke1 Ba5 bxa5 Ra6 Nh3 Ra7 Ng1 Ra8 Ke2 c5 Kd3 h5 Ke4 c4 d4 h3 g4 h4 f4 h2 d6 h3 g5 e6 d5 c3 g6 a2 d7+ Ke7 d6+ Kf6 g7 a3 Qe1 c2 Nc3 Kf7 f6 Rh7 f5 Na6 Nb5 Qe8 d8B Nh6 g8R Qd7 Nf3 Nb8 Nd2 Ba6 Bb6 Bb7+ Ke5 Qd8 d7 Qf8 d8Q Ra7 Rg4 Qb4 Bg2 Qc4 Qc7+ Ke8 Bb2 c1Q Bd5 Qb1 Qe3 Rf7 Qc3 Rh7 Rh4 Rf7 Rg1 h1B Rgg4 h2 Qd6 Be4 Rh3 Qbd3 Rh1 a1R Qc7 Rb1 Rhh4 Rd7 f7+ Ke7 f8B+ Ke8 f6 Rf7 Re1 h1B Re3 Nf5 Reh3 Ne3 Bg7 Bhg2 Bh8 Nc2 Qd6 Qc8 Nc4 Nd7+ Kf4 Nf8 Ke5 Rh7 Qb8 Kd7 f7 Bf1 Bc7 Bfg2 Nb6+ Ke7 Na8 Kd7 Bb6 Qcc4 Kf6 Qd1 Qh2 Qdd3 Ke5 Qf1 Ba1 Rb3 Bb2 Qb1 Kf6 Ng6 f8B Rf7+ Kg5 Rh7 Bb4 Nf8 Kf4 Bc8 Rh5 Ke8 R5h4 Raf7+ Ke5 Kd7 Ba7 Bb7 Bb6
2NQ2n1/qk5r/B1pQB3/2Q1r1R1/KbN1Q1n1/1Rp2P2/1q2Q1B1/2b2r1q b - - 0 1 legal: proof: a4 b5 axb5 g5 c4 d5 f3 dxc4 e4 f5 exf5 g4 Ra3 g3 Ra6 Qd5 Ra1 Qd8 b3 Qd3 Ba3 Qd5 Ke2 Nc6 Bc5 Nf6 Bf2 gxf2 g4 Qd8 Qc2 Be6 Qd1 Bf7 h3 Bh5 g5 Bg4 hxg4 Nb8 Bg2 Ng8 Bh3 Qd5 Bf1 Qd8 d4 Kd7 Kd2 Kc8 Kc3 a5 g6 e5 d5 h5 f6 c6 f7 h4 g5 h3 b6 a4 b7+ Kc7 d6+ Kb6 Kb4 c3 g7 e4 g6 a3 Ne2 a2 Nd4 e3 Rg1 e2 Nd2 e1R Rg5 h2 Qe2 h1Q Nf5 Ra3 Nc4+ Ka7 Ne7 Ra6 d7 Rh4 Bg2 f1Q Rb1 Qc7 d8Q Nh6 g8B a1B g7 Rb6+ Ka4 Qe5 b4 Qhh2 b5 Qc5 Rb3 Nd7 Nc8+ Kb8 Bh7 Qfh1 g8B Ng4 Bd3 Ndf6 Qe4 Be7 f8Q Rh7 Be6 Ng8 Qff5 Qcg1 Qc5 Bb2 Qe2 Rd1 Qdd4 Bc1 Qde4 Kc7 b8Q+ Kd8 Bh3 Rf1 Bg2 Bd6 Qa8 Kc7 Qa5 Kb8 Qab4 Rbb7 b6 Rbe7 b7 Re8 Qba5 Qe3 Qd8 Qd4 Bd5 Re5 Be6 Qf2 N8b6+ Ka7 b8Q+ Ka6 Nc8 Qfg1 Qcd5 Bb4 Qbd6 Kb7 Q5c5 Qf2 N4b6 Qfg1 Bb5 Qf2 Nc4 Qh2g1 Qe1 Qb2 Q1e2 Qe3 Qcd5 Qb6 Q5c5 Qa7+ Ba6+
2Rq4/3rR3/bpN2n2/N1Q1B3/1K1npq1b/PN1b1r1n/6Nk/NR2BQ2 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Rh7 Bh3 Bh6 fxg5 Rh8 g6 Bg7 g5 Bf8 Bg4 hxg4 h4 Kd7 d4 Kd6 Kd2 e5 h5 c5 f6 b6 h6 b3 Kc3 e4 h7 g3 a3 b2 g7 g2 f7 c4 g6 Be6 Qf1 Nf6 g8R Bh3 g7 Ra4 Nd2 b1B Ngf3 g1Q Nb3 Qh2 Nh4 Qg2 Bd2 Qh2 Be1 Be7 f8N Nh5 Nd7 Bg4 Ndc5 Bf3 Ng2 Ra7 Kb4 Bd3 Rb1 c3 Na1 c2 Ncb3 c1N Re8 Ne2 g8Q Rc7 Qg5 Rf8 h8B Ng1 Qc1 Bg5 Re7 Nf6 Bg7 Qg3 Rh8 Rd7 Rg8 Bfe2 Qe3 Kc7 d6+ Kc6 Qef2 Nh3 Qf5 Bh4 d5+ Kb7 Q5f2 Qf4 Qc5 Ba6 Rh8 Bed3 Rg8 Rc7 d7 Nc6+ Kc3 Nd4 d6 Rf7 Kb4 Rf8 Qg5 Kc6 Rh8 Ng4 Be5 Kd5 Qh5 Nf6 Rg8 Qb8 d8N Rd7 Nb7 Qe8 N7a5 Qd8 Qd1 Rf7 Qc1 Rf8 Reg7 Ke6 Re7+ Kf5 Qc5 Rf7 Rge8 Kg4 Rf8 Ng1 Rg8+ Kh3 Rh8 Kh2 Rf8 Rc7 d7 Nh3 Rg8 Qa8 d8N Rd7 Ndc6 Qd8 Qf3 Rg7 Qe2 Rg3 Qf1 Rf3 Rf8 Qc7 Ra8 Qd8 Rc8
QB1rN2Q/K1B2PNN/1Qp1R1rn/5Q2/1q3qr1/3qR3/2k2np1/3bQ2b b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kb3 Kf7 Ka4 Kf6 Ka5 Kf5 e4+ Kf6 h4 f1B b4 g5 d4 a6 e5+ Kf5 e6 Ke4 b6 c6 e7 g3 e8N g4 b5 f2 f5 g2 h5 g3 f6 Bf5 d6 Ne7 d5 Bc4 f7 f1R h6 Ng6 h7 Bg4 d7 Nf8 d6 Rf6 Rh6 Ne6 Ra3 Bd5 Bf4 Ng7 Ne2 g1Q Nd4 Rg8 h8Q Qe3 Ne6 Rg6 Qe1 Nf5 N6g7 Bd1 Nc3+ Kd3 Ne4+ Kc2 Ng5 Bh1 Nh7 g2 Be5 Qf6 d8Q Qd3 b7 Nd7 b8Q Nc5 Kb6 a5 d7 a4 Qdc8 Ne4 d8Q Nf2 Bc7 Qfd6 Kb7 Qb4 b6 Rg4 Rb3 a3 Re6 a2 Qg5 Nh6 Qf5 a1Q Qd8 Ra2 Qa8 Qc1 Ra3 Qe3 Ka7 Qef4 b7 Rg6 b8B Rg4 Nh5 R8g6 Nhg7 Rb2 Qd4 Rb3 Qb6 Rc3 Qee3 Rc5 Qe1 Rd5 Rb3 Rd8 Ra3 Qde4 Rg3 Qd3 Rge3
2R2K1R/N1q2pNN/q1N1B3/2pbqBQ1/r3Qn2/R2N2b1/n4kPn/1r6 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bd6 Ba3 Bh3 axb5 Bf8 b6 Bg4 b5 Bc8 Bb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f3 d6 h4 d7 f2 b7 c6 d4+ Kb6 g6 c5 g7 b3 d5 h3 d6 h2 Qd3 b2 Na3 b1Q Nc2 Qb3 Ne1 Ra4 Ra3 Rd4 Ngf3 Qc2 Ng5 Rh6 Nh7 Ne7 g8B Rh3 Kf6 Qd2 e5 Qe3 e6 Ng6+ e7 Nc6 b8N Nf4 Qe4 Nb4 Nc6 Qc7 d8R Na2 e8N Bb7 d7 Ra4 Rc8 Bd6 Bc4 f1N Na7 Bd5 Kg7 Qe2 d8N Rb3 Nd3 Rb1 Ndc6 Qe1 Bb3 Qa5 Bc4 Qa6 Bb3 Be5+ Kf8 Kb7 Ng7 Kb6 Rg1 h1Q Bc4 Qh2 Rh1 Kb7 b6 Qh5 Rh4 Nh2 Bb3 Bd4 Rh3 Qhe5 Rh5 Bf2 Rh4 Qc4 Rh5 Ka6 b7 Bg3 b8Q Qb5 Qa8 Kb6 Qf5 Qa6 Qg5 Be4 Be6 Bd5 Nd8 Ka5 Nf6 Kb6 Bh7 Ka5 Bhf5 Kb6 Nac6 Kb5 Nh7 Kc4 Na7 Kd4 Ndc6+ Ke3 Qb7 Ke2 Qb4 Kf1 Qe4 Kg1 Nf6 Kf1 Rh8 Kg1 Nh7 Kf1 Ndb4 Kf2 Nd3+
4k3/4p3/1Q1RKQ1B/4Q3/1n1p1qrq/Pr3nnb/qBB1bN2/1N1RQ1Q1 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 fxg5 a5 exf5 Nc6 h4 Ne5 d4 cxd4 b4 axb4 g6 Ra6 g5 Ra5 h5 Ra8 h6 Bg7 hxg7 Nc6 Bg2 Nb8 Bh3 Na6 Bf1 Nb8 Ke2 h5 Kf3 b5 Kf4 d5 Ke5 b3 c4 h4 a3 d3 f6 d4 c5 b4 c6 b2 c7 b3 Nh3 d2 Qe1 d1B Nf2 h3 Bd3 h2 Bc2 Bcg4 c8Q Nh6 Qe6 Rg8 Qb6 Nf5 Ke6 Bh3 Qe5 Qc7 f7+ Kd8 f8B Ke8 Re1 Nc6 Re4 h1N Rh4 Ra4 Rh6 Nhg3 Qe1 Qf4 Qe5 Rh8 g8Q Be2 g7 Rb4 g6 Rb5 Qh7 Nb4 g8Q Qh4 Qgg7 Rg8 Qgh8 Qf4 g7 Nh4+ Qhf5 Nf3 Rg6 Qh4 Qh6 Qf4 Rf6 Qh4 Qd2 Qf4 Qe1 Qh4 Nc3 b1Q Bb2 Qc1 Nb1 Qcf4 Rg6 Rh8 g8Q Rh6 Rf6 Rg6 Qg7 Rg4 Qgg5 Rc5 Bh6 Rc3 Nd2 Rd3 Rd1 Re3 Nb1 Rc3 Bc1 b2 Rg6 Rb3 Qff6 Qe4 Qe3 Qf4 Qg1 Bd3 Qee1 Be2 Nd2 b1Q Bb2 Qa1 Nb1 Qa2 Qff5 Na6 Kd5 Ne4 Rd6 Nb4+ Ke6 Ng3 Qff6
1bN2bnn/qk2p1Q1/prN2Rr1/n1QK4/2P2NNB/5N1B/R4q2/2r1R3 b - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 d4 cxd4 a5 f5 exf5 d6 a6 Nc6 axb7 a6 bxc8Q Na7 Qb7 Rc8 Qa8 Rc6 Kd2 Kd7 Kd3 Kc7 Ke4 g5 c4 d3 b4 d2 f4 g3 h4 g2 b5 g4 f6 g3 f7 Nh6 b6+ Kd7 h5 Rg8 b7 Kc7 b8N Rb6 f5 Rb3 f6 Qd7 Na3 Rb7 Nb5+ Kb6 Ra2 Rg6 Kd5 Nc6 Na7 Na5 Nbc6 Ng8 Nf3 g1N h6 g2 h7 Ne2 h8N g1B Bh3 Bh2 Re1 Be5 Qc2 d1Q+ Qd3 Bg3 Qc8 Qc2 Qc3 Bh2 Bg5 Nf4+ Kd4 d5 Bh4 Qf2+ Ke5 Rg4 Ng6 d4 Ke4 d3 Nge5 Rg7 Ng4 Ng6 Qe5 Qc7 Kd5 d2 Qcf5 Rb8 Nc8+ Kb7 Qd4 d1R Qg5 Rb1 Qc5 Nh8 Qh6 Rg6 Qh7 Bg7 f8N Ra1 f7 Rc1 Ne6 Bf8 Nf4 Qb6 Qg7 Qa7 Qb2+ Kc7 Qc3 Rb6 Qg7 Kb7 Qgd4 Bg7 f8R Bg3 Rf5 Bf8 Qg7 Bh2 Rf6 Bg3 Nh5 Bb8 Nf4
r2q2n1/q1P1pq1B/b1R1BRB1/3B2Br/3p4/n2N2K1/3Q1N2/1nQN1bk1 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 fxg5 fxe4 a4 b5 axb5 Nc6 h4 Nb4 d4 cxd4 g6 Bh6 h5 Bf4 g5 Be5 h6 Bg7 hxg7 Nc6 Qf3 Nb8 Qd3 Qb6 Qd1 Qd8 Kf2 a5 b4 d5 c4 Kd7 b6 Ke6 b5 Kf5 c5 h5 b7 d3 c6 e3+ Kg3 Ke4 c7 a4 b6 d4 Qd2 e2 Nh3 Na6 b8N e1N b7 a3 Nd7 a2 b8Q Nc5 Ne5 Nc2 Qb2 Na3 Rg1 Na4 Nc3+ Kf5 Nf2 Ba6 Rb1 a1Q Ncd1 Nc3 Qbc2 Rh6 Rb6 Ncb1 Rc6 Qa2 Bg2 Qf7 Bd5 Rh8 Rf1 h4+ Kf3 h3 Kg3 h2 Qc5 Nf6 g8B h1B g7 Bg2 g6 Rh5 Bh7 Bh3 g8B Bg2 Qdc3 d2 g7+ Kg5 Bhe4 Bh3 Bgh7 Ng8 Beg6 Bg2 Ne3 d1Q Ned3 Qa4 Qd2 Bh3 Nfd1 Qa5 Rff6 Bf1 N1f2 Qb6 Kf3 Kh4 Ned1 Nh6 g8B Qa7 Ne4 Kh3 Nef2+ Kh2 Qcc3 Kg1 Kg3 Qff8 Bge6 Ng8 Qe1 Rc8 Bg5 Qf7 Qc1 Ra8 Qed2
n4R1R/1p1bN1q1/2NrQ1q1/B5B1/p2n1BN1/KnbkPN1q/N7/5Q1r b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 fxe5 a6 c4 Bf5 cxd5 Bc8 a4 Qd7 b4 Qd8 b5 axb5 a5 Rh7 Nf3 Rh6 Ng1 Rh8 Bh3 Bb4 Bf5 Bd6 Bc2 Bf8 Ba4 bxa4 h4 Kd7 d4 g5 Kd2 f5 Kc3 c5 Kb2 f4 d6 Ke6 a6 Kd5 h6 Kc4 d5 g4 a7 f3 h5 g3 h7 g2 d7 f2 e6 f1N d6 Nf6 e7 Ne3 e8N Ned5 h6 Nc3 Bg5 Qa5 d8N Nfd5 e3 Bd7 Qf1+ Ne2 Nc6 Na6 Ka3 Rd8 a8Q Qc7 Nf6 Bg7 Qc8 Kd3 Nc3 c4 Ng4 Nc5 Nf3 g1Q Na2 c3 Rh2 c2 Rf2 Rhg8 h8N Nb3 h7 Bc3 Ng6 Rh8 Nge7 Nb6 Rb1 c1Q+ Rb2 Rhf8 h8B Na8 Be5 Rh8 Bef4 Rh1 Rh2 Qc2 Rh8 Qh2 Rb1 Qh3 Rc1 Bf5 Qe6 Qb1 d7 Qe5 Qg2 Ned4 Rf1 Qg7 Qg1 Rf8 d8B Rf6 Ba5 Qc2 Qd5 Bd7 Rf2 Rd6 Qe6 Qh4 Rh2 Qh3 Rf8 Qf1 Rhh8 Qh3 Qa1 Qcg2 Ng1 Qe4 Nf3 Qeg6 Qf1+
3r4/RKP3n1/1RR3Rp/2N5/1QkNq2p/1nn2b1B/n1Q2B2/rb3NnR b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 b4 a5 h4 gxh4 Nh3 a4 Ng1 Bh6 Qf3 Bf4 Qe2 Bc7 Qd1 Ba5 bxa5 Bb7 Be2 Ba6 Bf1 Bc8 Kd2 Kf7 Kd3 d5 f4 e5 g4 a3 c4 h6 b6 a2 a6 Be6 g5 Bd7 f6 Ke6 f7 Rh7 f8N+ Kd6 b7 Kc5 f5 Qa5 f6 Qa4 g6 Nc6 b8R Nge7 g7 Rh8 g8R Nf5 a7 Ng7 f7 Bh3 Qe2 Bf5+ Qe4 Bh7 Nd2 Qb4 Rb1 a1N Rb6 Nb3 Ngf3 Qa4 Bh3 Nb4+ Ke2 d3+ Ke3 Na2 Nd4 Qc6 Nf1 d2 Qc2 d1B Ra6 e4 Nd7+ Kb4 c5 Bf3 f8Q Qg6 Kf4 e3 Ke5 e2 Be3 e1N Rc6 Qe4+ Kd6 Bg6 Kc7 Rd8 Qd2+ Kc4 a8R Bh7 Ra7 Bg6 Nc2 d4 Kb7 d3 Nd4 Bf5 Qh2 d2 Bf2 d1N Qg2 Ndc3 Qh2 Ne6 Rg6 Ng7 Qfd6 Ra8 Qdf4 Rhd8 Rb2 Nd2 Rb6 Nb3 Qd6 Qe8 Qdf4 Bb1 Qd2 Qe4 Qhf4 Bd1 Qc2 Nf3 Qf8 Ng1 Qd6 Bf3 Qf4 Kd5 Qfd2 Nce2 Qb4 Nec3 Raa6 Bh5 Rce6 Bf3 c6 Nac1 Ra2 Ra6 c7 Ra5 Nc5 Ra4 Qa5 Kc4+ Rec6 Ra3 Rb2 Ra1 Ra2 Ne6 Ra3 Na2 Qb5+ Kd5 Ra7 Ng7 Qa5 Kc4 Qb4+
k3bBNR/N1K5/7N/p1RQN1qb/1PrQ4/3p2bq/2B4r/nbB2Nn1 b - - 0 1 legal: proof: h4 c5 d4 g5 a4 gxh4 e4 b5 axb5 f5 exf5 d6 c4 d5 cxd5 cxd4 Ke2 Kd7 Kf3 Kc7 Ke4 Kb7 Ke5 a5 g4 h5 b4 h3 f4 h4 b6 h2 f6 h3 f7 Nh6 f5 Na6 f6 Bd7 d6 Rc8 g5 Ng4+ Kd5 e5 g6 e4 g7 e3 g8N e2 Nd2 e1Q Bd3 Rc4 Bc2 Nf2 Nf1 Be8 d7 Qe3 Nf3 Bd6 f8B Nc5 f7 Qdg5+ Ne5 Nb3 d8N+ Ka8 Ra2 Na1 b7+ Ka7 b8N Ka8 Nbc6 Qa3 Rg1 h1B+ Rg2 h2 Na7 Qb3 Ra3 Qh3 Rc3 Rh7 Qf3 d3 Rg4 Bg2 Rh4 h1B Qe4 Bf3 Rh6 Rg7 Rh8 Bh5 Qg2 Rh7 Qf3 Re4 Rc5 Bb8 Qf5 Rc4+ Ke6 B1f3 Qg4 Bd1 Kd5 Qg3 Qd4 Nh3 Ke6 Bd6 Kd5 Ng1 Ke6 Be7 Kd5 Bf6 Kd6 Qh3 Kc7 Bg7 Nb7 Bf6 Nd6 Be7 Nf5 Bd6+ Kb6 Bb8 Nfh6 Bd6 Nd7 Bg3 Ne5 Nf3 Kc7 Ng1 Bb1 Bb3 Bc2 Ba2 Bg7 Bb1 f8Q Bg6 Qfd6 Bgf7 Bf8 Bh5+ Nd7 Rf7 Q6e5 Rf2 Qed6 Rd2 Ne5 Rh2 Q6d5+
1Kb1rq2/rR4b1/2BP3R/r2Rp1k1/BB1Q2pn/3RQ2N/3r4/1R1Nq1n1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 Kf7 h4 c5 d4 a5 b4 f3 Kg3 e6 Kf4 f2 Ke5 a4 h5 a3 b6 c4 f6 a2 h6 Kg6 f7 c3 b5 c2 h7 Bd7 d6 Bc8 d7 Ra3 d5 Bh6 Kd6 Ne7 f8R Nbc6 b7 Rc3 b8Q Ba6 b6 Rg8 h8Q Rh3 b7 Be2 Rf3 Qf8 Kc7 Nd4 d8R Ndf5 Nc3 Nh4 Ba3 c1Q Rd3 Kh5 g6 Qf7 g7 Qd2 Rb1 a1R Qa7 Nf3 b8R Rh2 R8b7 Nf5+ Kb8 Qf8 Qe3 Qe1 Bg2 f1R Nh3 Ng1 Nf4+ Kg5 Nd1 Nh4 Bb4 Ra7 Be4 Qf7 Bg2 Re8 g8B Qf8 Qhd4 e5 Be6 Ra5 Bd7 Bg7 Be4 Bf3 Ba4 Rd2 Rh2 Ng2 Rh6 Nh4 d6 Rff2 Bec6 Be4 Rb5 Bf5 Rd5 Bc8 Rd7 Ra2 Re7 Rfd2 Rb7 Ra7 Bab5 R2a6 Ba4 Ra5 Nh3+
b1b1R1k1/1R1qpn2/Q2RB1p1/7b/2nP2r1/2R1r1N1/q1QbQ1K1/2RB3N b - - 0 1 illegal: No possible last move, all moves rejected
2q3r1/1n3N1N/1qRQ4/3n2bQ/1R1P2Qr/1Bqk1pKp/1R1B1n2/2rR1R2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 Kd6 e4 f5 e5+ Kd7 d6 Ke6 g5 Kd5 d7 Ke4 b6 a5 e6 h5 b7 c5 b5 h4 e7 c4 e8R+ Ne7 b6 c3 g6 a4 g7 c2 g8Q a3 Bd2 c1Q Qg4+ f4 Bc4 a2 Na3 Bh6 Nf3 g1N Bb3 g2 Kf2 Nc6 b8R Kd3 b7 Qb6 d8Q Bg5 Qd6 Nd8 Nc4 Nd5 Re6 Rh6 Rb1 a1Q Qh5 Qac3 Nce5+ Ke4 Nf7+ Kd3 Rg6 Qc8 Re6 Q1c3 Rc1 Rh8 Re1 Rh7 Rf1 Ra1 Rc2 Rc1 Rb2 Rh8 Ra8 Rg8 b8R Nb7 Ra4 Rh8 Rc4 Rh7 Rc6 Nh3+ Ke1 g1R Qg4 Bh6 N3g5 Nf2 Qh5 Rh8 Nh7 Rgg8 Qg4 h3 Qh5 Rc2 Qdg4 f3 Rhg1 Bg5 Rh1 Nd1 Rhg1 Rc1 Rh1 N1e3+ Kf2 Nd1+ Kg3 Nf2 Rd1 Re8 Rhg1 Rhg8 Rgf1 Re4 Ra8 Rf4 Ra4 Re4 Rb4 Rf4 Qge6 Rh4 Qeg4
N2B3N/rBK3p1/2R4k/R1p5/5BB1/qQ1Qq2P/1bn1bb1B/1bQn2b1 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 f4 e5 a4 d5 cxd5 b5 axb5 exf4 Bb2 a4 Bc1 Ra5 bxa5 Qd7 Bb2 Qe7 Bc1 Qd8 Kf2 c5 e4 f5 d4 Kf7 d6 Kg6 d5 f3 Kg3 a3 Kf4 g3 Ke5 f2 b6 f4 d7 g2 d6 f3 a6 a2 b7 Rh4 a7 Qa5 d8Q Qa6 a8B Qa3 d7 Ne7 Kd6 Qe3 e5 Qf4 Nc3 Qf5 e6 Kh5 Nb5 Qh7 Bf4 Nf5+ Kc7 Ne3 e7 Qh6 Qc1 Nd1 Be2 f1Q Bd6 Nc6 b8B Nb4 Bb7 Nc2 Nh3 g1B Ng5 Qh3 Nf7 Qe3 e8Q Ra4 Nh8+ Kh6 Qf7 f2 Qb3 f1B Bg4 Qf3 h3 Be7 Rh2 Bc4 Rd2 Ra7 Bh2 Be2 Rd6+ Bf6 Rc6 Bf2 Na3 Bg1 Nc4 Bf2 Bd6 Bd4 Nb6 Qg3 Na8 Bg1 Rb1 a1B Rb2 Qf3 Ra2 Bab2 Ra5 Qg3 Qf8 Bf2 d8B Be6 Qd3 Ba2 Qf7 Bb1 Qfb3 Bg1 Qa2 Qe1 Qab3 Qb4 Kc8 Qa3 Bh2+ Bf6 Bbd6 Bh4 Kc7 Bhf2 Bdf4#
2r1B3/N1rR4/k1bKB1N1/Q1R2R1n/2P1qRb1/1q3p1p/3R1q1q/r5BQ b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kd2 b5 axb5 f5 Nh3 f3 Ng1 f2 Nc3 g5 Nb1 f4 Ra6 f3 Ra2 Nc6 Ra1 Bd6 h3 Bf4+ gxf4 Ne5 h4 g4 Ra4 Nf7 Ra1 Ng5 hxg5 Qf6 Rh2 Qe7 Rh1 Qd8 Kd3 d5 b4 Kd7 c4 Kc7 e4 Kb6 e5 h5 g6 a5 g7 g3 e6 a4 e7 h4 e8B g2 f5 a3 f6 a2 f7 Qg5 f8R Qf6 Na3 Qf4 Ne2 g1Q Rh2 Bg4 Bh3 f1Q Be3 Nh6 g8R Rd8 Rg5 Bh5 Be6 h3 Rgf5 Qgg3 Bg1 Kb7 b6 Ng4 Nb5 Nf6 Na7 Qff2 b5 Rh7 Rc1 Qfh4 Nf4 a1R Ng6 Rc8 Qf1 Re7 Rd1 Rec7 Qg2 Bg4 Qh1 Qd6 Rf4 Nh5 R8f5 Qfg3 Rhd2 Qf2 Re4 Qdh2 Ref4 Kb8 b7 Qe7 Kc2 d3+ Kb3 d4 Rc5 Qeh4 Kb4 Qe7 Bf5 Qe4 Be6 Rc6 Rff5 Kc7 Rf4 Kb6 Rcf5 R6c7 b8Q+ Rb7 Qe5 Rbc7 Qc5+ Kb7 b6 Ka6 Re2 d2 b7 d3 b8R Qhg2 Rb7 Qh2 Rb1 d1B Rd2 Bc2 Rb5 Ba4 Rbd1 Qe5 Qd5 Qe4 Rc5 Bc6 Rb5 Qh4 Kc5 Qhe1 Kd6 Qef2 Rdb2 d2 Rc5 Rf7 Rb7 Rh7 Rd7 Rg7 Re1 d1Q Re2 Qb3 Rd2 Rh7 Rd8 Rb7 Rd7 Rbc7 Qe5 Qb7 Qc3 Qb3 Qa5+
kB1B4/1q2bN2/q1R5/2B2p1K/RP2rr1B/1n1N1Qq1/1bp3q1/Q2Bb1N1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 exf4 g5 b5 axb5 Bc5 g6 Bf8 h4 f6 Bh3 Be6 Bg2 Bf7 gxf7+ Kd7 Bf1 g5 Nc3 g4 Ra4 Nc6 Nb1 Nd4 Ra3 Ne6 Ra1 Ng5 hxg5 Qe7 Ra6 Qe8 Ra1 Qd8 Kf2 Kc8 e4 Kb8 d4 h5 b4 a5 d5 c5 b6 h4 b7 f5 d6 h3 g6 f3 Kg3 f2 g7 c3 e5 c4 e6 a4 d7 a3 e7 a2 e8Q h2 Qde2 c2 Ba3 c1B Qb2 c3 Bd3 f1Q Qe4 c2 Nc3 Qc8 d8B Ne7 g8N Nc6 Qe2 Na5 Na4 Be7 f8B Rh4 Qf3 Bd2 Nh6 Nb3 Nc5 Be1+ Kf4 Qg2 Nf7 Qe6 Be2 Qa6 Nd3 Ra7 Qf6 g3+ Kg5 Rf4 Kh5 Ra8 Bb2 Ra7 Rc1 a1B Bd1 Ra8 Bc3 Bb2 Ra1 Ka7 Qe5 Rc8 Qa5 Rcc4 Ra4 Rce4 b8B+ Ka8 Qe5 Qf2 Qg7 g2 Bf6 Qfa7 Bh4 Q7b7 Ne2 g1Q Qc3 Qg7 Ng1 Qg3 Qe5 Bg5 Bc5 Be7 Qg7 Bc1 Qa1 Ba3 Ne2 Bb2 Rg1 h1Q Rg2 Be5 Ng1 Bb2 Rd2 Qhg2 Re2 Rc4 Re6 Rce4 Rc6
R4R1b/Q1n1k2Q/1Q1pqB2/p1brq1b1/2r1Q1P1/1K1B1N2/2B1N1Qr/2r5 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 d4 cxd4 f5 b5 axb5 Bb7 h3 Bd5 f6 Be6 Bc4 Bf5 Bd3 Nc6 Bf1 Ne5 gxf5 g4 Kf2 g3+ Ke1 Ng4 hxg4 Rc8 Rh2 Rb8 Rh1 Ra8 Kd2 e5 b4 h5 c4 d3 Kc3 h4 b6 e3 f7+ Ke7 b7 d6 b8Q a6 c5 e4 b5 g2 f6+ Ke6 b6 d2 c6 h3 b7 e2 c7 e1Q c8B+ Qd7 Bb2 h2 Qe2 d1R+ Nd2 e3 Qa7 Bg7 b8Q Ne7 f8Q Nd5+ Kb3 Nc7 Ndf3 Rd5 f7 a5 Qg8 Bh6 Qbb6 Ke7 Qh7 Bg5 Bg7 Qe6 Qf2 Rb8 Ne2 g1B Qg2 Bf2 Ba6 Rbc8 Bd3 Bg1 Bc2 Qe5 Nc1 e2 Ra3 Bc5 f8Q+ Ke6 Qfg8+ Ke7 Qe4 Rh4 Qgh7 Qe6 Rg1 h1R Ra2 Rh6 Rb2 R6h2 Rb1 Qg3 Rb2 e1B Bfd3 Qge5 Ne2 Bef2 Rf1 Bfd4 Nd2 Kd7 Qba6 Bb6 Ka2 Ke7 Bh6+ Qg7 Rf8 Rb8 Nf3 Bbc5 Rb4 Rc1 Kb3 Qf7 Rb5 Bh8 Bg7 Qe5 Rb4 Qfe6 Qb5 Rb6 Qba6 Rc6 Rbb8 Bce3 Ra8 Rc4 Q6b6 Bc5 Bf6#
1Bq1RnRQ/1n2qr2/qNp1BQ2/1BP1B3/1nN5/3p2bB/2N1kq2/2K3b1 b - - 0 1 legal: proof: d4 a5 b4 e5 g4 exd4 a3 f5 a4 b5 axb5 fxg4 Ra2 a4 Ra3 Ke7 Ra1 Ke8 h3 g5 Qd2 g3 Ra2 g4 Ra3 g2 Qd3 g3 Ra1 Ra5 bxa5 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Bh6 Bg5 Bg7 Bc1 Bf8 Kd2 Kf7 e4 Kg6 f4 d5 c4 h5 g5 c6 a6 d3 c5 a3 a7 a2 a8N d4 e5 Kf5 g6 Ke4 e6 h4 e7 h3 e8B h2 f5 Na6 g7 Nf6 g8B Nb4 b6 Bd6 b7 Qe7 b8B Rh7 Be6 Rf7 Bb2 Nh7 f6 Nf8 Nf3 g1Q Na3 g2 Nc4 Qf2+ Kc1 g1B B8d7 Bg3 Rb1 a1Q Ne1 Qa2 Nab6 Qa6 Nc2 Qc8 Qe1+ Kf3 Qe5 Qa6 Ra1 Qc8 Ra8 d2+ Kb1 d1N Kc1 Ne3 Bc3 Rg7 f7 Nf5 Qf6 Rh7 Qh8 Nd6 Beh3 Nb7 Bde6 Nd7 f8Q+ Rf7 Qfg7 Nf8 Qf6+ Ke4 Bfg2+ Kd3 Be4+ Ke2 B4d5 d3 Bd4 Qg2 Bde5 B1f2 Rg1 h1Q Nd2 Be3 Bc4 Qf2 Bb5 Qd5 Rg2 Qa2 Rg1 Bd4 Ndc4 Qa6 Rg2 Bh2 Rg8 Bg1 Bf4 Be5 Bh2 Bg3 Be5 Qcd7 Re8 Qc8 Bb8 Bh4 Bhd6 Bg3 Be5
nRnrbNR1/2qR3K/1p1Q4/Q1Q3p1/n2q1rQ1/n2QP3/1kq5/1B2NB2 b - - 0 1 legal: proof: f4 e5 c4 a5 b4 axb4 g3 d5 cxd5 f5 Bb2 h6 Bd4 Be7 Be3 Bg5 fxe5 f4 Qc2 f3 Qd1 Be7 Bg5 hxg5 Qc2 Bc5 Qc1 Be3 Qd1 Bf4 gxf4 Qd7 Qc1 Qd6 Qd1 Qd8 Kf2 Kd7 Kg3 c5 Kg4 c4 Kf5 b6 Kg6 c3 a4 g4 d4 f2 h4 b3 f5 c2 h5 c1Q h6 b2 e6+ Kd6 e3 g3 a5 g2 h7 Qc2 a6 Nh6 a7 Qb3 f6 Nd7 e7 Qg8 e8B Rb8 a8Q Nf7 Ra7 Bb7 Nf3 g1N Ng5 Nf3 Nd2 b1N Ne6 Nc5 Nf8 Rd8 Rg1 N3g5 Qg4 Na3 Nf3 Nge6 Ne1 Bc6 Rb7 Qc3 Qa5 Nc7 Bd7 Qc4 Bf5 Na4 Bb1 Be8 Ra7 Na8 Rc7 Nh6+ f7 Nf5 Rb7 Qc2 Rb8 Kc7 d6+ Kc6 d7 Kd6 d5 Ne7+ Kg5 g6 Kh6 g5 Rh1 Ke5 Rh3 Nc8 d6+ Nb5 Rf3 Kd5 Rf4 Kc5 Rd4 Qg7+ Kh5 Rg8 h8R Qe5 Kh6 Qee4 Rd3 Qd4 Kh7 Rg6 Rg8 Kc4 Rd1+ Kb3 Rd3+ Kb2 Rd1 Nca7 Rd3 Na3 Rd2 Rc8 d8Q Rf6+ Rd3 Rf3 d7 Rf4 Qe7 Qc7 d8Q Qc2 Qdd6 Rd8 Qe4 Nc8 Rd1 Qc7 Qd3 Qc2 Nd7 Qc7 f8Q Qc2 Qfe7 Qc7 Nf8 Qc2 Bh3 f1Q Qdc5 Qf3 Bf1 Qfd5 Qed6 Q5c4 Rd2 Qcc3 Rh2 Qcc4 Rh6 Qc4c3 Re6 Qcc4 Re7 Qc4c3 Rd7 Qcc4 Qce5 Qc7 Qec5
1NQ3Q1/4K2p/1rQ1bn1N/p1B2R2/n2B4/1BP1R3/Q3bQn1/nq2qkq1 b - - 0 1 illegal: No possible last move, all moves rejected
1bbB2B1/nQ1p1RN1/Q5pN/N1q5/1P1b1r2/2qR2n1/N1NQ2Kb/nk6 b - - 0 1 legal: proof: e4 f5 d4 b5 a3 b4 axb4 c5 Ra4 cxd4 Ra6 Qb6 Ra1 Qd8 exf5 h5 g4 hxg4 b3 a5 Bg2 a4 Bh3 a3 Bf1 Ra4 bxa4 Rh5 Be3 Rh6 Bc1 Rh8 h4 Kf7 c4 Kf6 f4 e5 Kf2 g6 c5 g3+ Kg2 a2 c6 d3 c7 d2 h5 e4 a5 e3 a6 e2 h6 e1Q a7 Qe3 a8N Qa7 h7 Qa3 Nc3 Bd6 Nf3 Bb7 c8Q Bf8 Nb6 Qb3 Bc4 Qc7 Rh3 Ne7 Bg8 Bg7 Nc4 Nbc6 Na5 Na7 Qe2 d1N Qd2 Ba6 Ne1 Qc5 Qb7 Bh6 Rb1 a1B Na2 Bd4 Nc2 Qbc3 Rb3 Bg7 Rh1 Be5 Rf1 Bb8 Rf3 Nec6 Rf1 Nf2 Ra3 Nh1 Bb2 Q3d4 Rd3 Qdc3 Rf2 Nd4 Bc1 Ke7 f6+ Kd6 f5 Ke5 f7 Nb3 f8Q Na1 Qfc8 Bf6 Kf1 Bg7 f6 g2+ Kg1 Ng3 f7 Bf6 f8N Bg7 Kh2 g1B+ Kg2 Bh2 Rf7 Bf6 Ne6 Kf5 Qb6 Ke4 Ng7 Bd4 Qcc7 Bc8 Qa6 Qe7 Qd1 Qec5 Bg5 Q3c4 Bd8 Qc3 Rf2 Bg1 Qd2 Bh2 Bc4 Rf8 h8N Rf3 Nf7 Rf4 Nh6 Qb2 Bg8 Rh4 Rf7 Rf4 Rf3 Qbc3 Ne3 Qb5 Qe1 Kd3 Qcb7 Qbc4 Nef5+ Kc2 Ne3+ Kb2 Qd2+ Kb1 Nc2 Qc5 Rd3
1Q1NNBK1/3pP3/n1q1B2q/2q4k/1nRN4/1qNrp2r/3R3N/1Qrb2R1 b - - 0 1 legal: proof: d4 h5 a4 b5 axb5 e5 f4 e4 g4 c6 d5 cxd5 gxh5 Bd6 e3 Be5 fxe5 d4 Bc4 dxe3 Bd3 Rh7 Bf1 Rh8 Ke2 a5 c4 g5 h4 f5 b4 Kf7 h6 Kg6 b6 f4 h5+ Kf5 b5 Kg4 e6 a4 e7 a3 h7 a2 b7 Ra3 h6 Ra6 c5 Ra3 c6 Rb3 c7 Rd3 b6 Rd6 Nc3 Qf8 Nf3 Rf6 Bh3+ Kh5 Rh2 Na6 b8Q g4 b7 g3 Qh1 g2 Be6+ Kg6 Rh4 g1Q Nh2 Qf7 Rb1 a1Q Bd2 Qg5 Rg1 Qa3 Bc1 Rf5 Bb2 Nf6 Rhg4 Rg8 h8R Kh5 h7 Rd5 Bc1 Rd8 Rf8 Qb3 h8N Qh7 Nf7 Qhh6 Bd2 Re8 Nd8 Rd3 Bc1 Nd5 Rf5 Ndb4 Rd5 Rd1 Rd2 Rh8 Bb2 Qhg7 Qf3 Q7g6 Rd5 Rg8 Nb5 Qh6 Qa8 Nc5 b8N Bb7 c8N Nca6 Rd6 Rd5 Nbc6 Rf8 Qf1 f3+ Ke1 e2 Kf2 e1R Kg3 e3 Bg7 f2 Qb8 Rf4 Bf8 Re2 Qb1 Re1 Kh3 f1Q+ Kg3 Rdf5 Rd2 Qfc4 Nc3 Rd4 Nd6 Rc1 Ne8 Rd3 Kh3 Qb5 Rc4 Qb6 Nd4 Bf3 Qc8 Rf7 Qb8 Qgc5 Kg3 Bd1 Kh3 Qh8 Kg3 Rg7+ Kf4 Rg3 Ke4 Qcc6+ Kf5 Qh6 Ke5 Rh3 Kf5 Qh7+ Kf6 Qh6+ Kf7 Qbc5 Kg8
4B1q1/nPNn1n2/1p3rR1/kNN4N/B5pq/2Q1Q2q/5rnN/K2b1BR1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 Na6 a4 bxa4 b4 Nh6 b5 Ng8 b6 Nb8 c4 e6 d4 Rh6 b7 Rh7 c5 Qg5 c6 Bc5 dxc5 Qf6 Bd2 Rh8 Ba5 Qd8 Bb6 cxb6 Kd2 g5 Kc1 d5 Kb2 a5 f4 d4 h4 g4 c7 Kd7 c6+ Kd6 h6 Kc5 h5 Kb4 f6 e5 f7 e4 f8N d3 h7 d2 f5 e3 h6 e2 f6 e1N f7 Qf6+ Nc3 Nd7 Qc1 Qh4 Ne6 Ng2 f8N d1N+ Kb1 a3 Qe3 a4 Nc5 Qh3 Nb5 Ka5 Nf3 Rb8 Nh2 a2+ Kc2 a3 Nfe6 Qh4 Rg1 Ra8 Rc1 a1Q Kb3 Qc3+ Ka2 Qd3 Ka1 a2 Rc4 Ra6 Rf4 Ra7 Rf6 Nc3 Rg6 Ra6 Qe1 Qdh3 Qg3 Ngf6 Qe3 Rf8 h8N Ne5 h7 Bd7 c8B Nf7 c7 Bc6 Bd7 Bf3 c8B Bd1 Be8 Nd7 Nec7 Ra8 Rc6 Rb8 Ng6 Ra8 Nd4 Nb5 h8Q Na7 Nf4 Rb8 Qh7 Ra8 Qc2 Rb8 Rg6 Ra8 Kb2 Rb8 Nh5 a1Q+ Kb3 Ra8 Ndb5 Qh8 Ka2 Qg8 Kb2 Nf6 Be6 Nd7 Bb3 Rb8 Ba4 Rc8 N7e6 Rc6 Nec7 Rf6 Qc4 Nfe5 Ka2 Rf2+ Kb1 R8f6 Ka1 Nf7 Qcc3#
B5kn/Bp1B3p/4B1b1/3R2q1/2rb1Nq1/2N2PN1/1R2QBbq/1bQ1K1n1 b - - 0 1 legal: proof: f4 a5 h4 g5 c4 f5 b4 axb4 h5 d5 cxd5 Ra3 fxg5 f4 g4 f3 g6 Ra6 g5 Rf6 Kf2 Rf7 Ke3 f2 h6 Rf3+ exf3 Nxh6 Ke2 Ng8 a4 c5 d4 e5 d6 b3 a5 e4 a6 e3 g7 Kf7 d5 b2 d7 c4 d6 c3 a7 c2 a8B Na6 g6+ Ke6 Ra2 Qc7 d8B Nb4 d7 Bc5 Bh4 Bd4 Nc3 b1B Rb2 Nh6 g8Q+ Nf7 g7 Na2 Bg3 Ke7 d8N Bf5 Ne6 Bg6 Bh3 f1B+ Ke1 e2 Qc8 Bg2 Be3 c1Q Bgf2 Qh2 g8B Kf6 Nf4 Kg7 Qc6 Kf8 Bd7 Kg7 Na4 Qc5 Qe4 Nc1 Nc3 Qg5 Bf5 Nd8 Bb3 Nf7 Ba4 Rc8 Bad7 Nh8 Qe6 Rc4 Qc6 Bf6 Ba7 Kg8 Qc5 Bd4 Qe5 Qhg3 Rh5 Q3g4 Kd2 Rc5 Be3 Bf1 Bc2 Qf6 Qe4 Rc4 Rd5 Qff5 Qe5 Qfg5 Bcf5 Nd3 Qc1 Nf2 Nh5 Nh3 Ng3 Q5h5 Qe4 Bg2 Qec2 Bc5 Bf2 e1Q+ Kd3 Bb6 N1e2 Qhg5 Nf4 Qg1 Ke2 Qh2 Ke1 Ng1 Qe2 Bd4 Bfe6+
1q1Bb3/P1n5/kN4B1/2Kp2n1/2pRq1NR/QBr5/1Br2R1Q/n2qBn2 b - - 0 1 legal: proof: g4 c5 e4 f5 exf5 h5 gxh5 a5 b4 axb4 c3 e6 d3 c4 d4 Bc5 dxc5 bxc3 Ke2 d5 Ke3 Kd7 Kd4 Kc7 a4 b5 h4 Kb7 f4 g5 h6 c2 h7 b4 c6+ Kb6 h5 g4 c7 b3 h6 b2 a5+ Kb7 a6+ Kb6 a7 g3 f6 g2 f5 Nd7 f7 Kb5 f8Q Rb8 f6 Rb6 f7 Bb7 c8B Ngf6 Qe2 Bc6 Rh4 Ne4 Nh3 g1Q+ Nf2 Ng5 Qa3 Nf6 f8R Be8 Bd2 c1N Be1 Qc7 Bh3 Qb8 Bf5 Ra6 Bg6 e5+ Kc3 e4 Kd4 e3 Bd7+ Kb6 Nc3 b1N Ba4 Nd2 Ng4 Nf1 Qh2 Kb7 Kc5 e2+ Ne3 Qg2 Ng4 Qe4 Bb3 Re6 Na4 Ka6 Rf7 Rf8 h8B Re7 Bc3 e1Q h7 Qd1 Be1 Re5 Ra2 Rf5 Re2 Rf3 Rd2 Rc3 Rd3 Rg8 Rd4 Rg7 Rf8 Re7 Bg7 Re5 h8B Rf5 Qg2 Rf2 Qh2 Rfc2 Bh6 Bf7 B6g7 Ne8 Bf6 Nc7 Bd8 Be8 Nb6+ Kb7 Ba4 Ka6 Rf2 Nb3+ Kb4 Na1 Bb3+ Kb7 Kc5 Rf3 Rdd2 Re3 Bb2 Rec3 Ba4 Ka6 Rd4 Bc6 Bb3+ Ba4 Qb4 Be8 Qa3+
Q2n1Q2/r2b1R1n/2B4r/2PQN3/3kp1q1/1n1rN2n/1N1pB3/2NrRK1N b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Bg7 h4 Kf7 f4 Ba6 f5 Nc6 Bf4 gxf4 g5 Ke8 g6 Bh6 Nh3 Bc8 Ng1 Bg5 hxg5 Nb8 b4 e5 c4 d5 c5 Kd7 f7 a5 f8N+ Kc7 f6 h5 g7 a4 g6 a3 b6+ Kc6 b7 e4 b5+ Kc7 b6+ Kc6 f7 a2 Nh7 d3 f8Q f3 Nf6 h4 Qb3 d4 Nd5 h3 Na3 h2 Ne3 Ne7 g8B Nd7 b8Q Nf6 b7 Rh6 g7 Nh7 Nac4 Ra7 Nb2 Qd7 Be2 f2+ Kf1 d2 Qa8 d3 Re1 a1N Qe6+ Kb5 b8N d1R Nc6 Nb3 Ne5 Nc6 Bf7 Nd8 g8N Kb4 Bg6 Kc3 Nf6 d2 Nh5 Kd4 Ng3 Qg7 Be8 Qg4 Bc6 Bd7 Nd5 Rc1 Ne3 Rc3 Nh3 Rd3 Nf4 Qg5 Rg1 h1N Rg2 Qh5 Rh2 Qg4 Rh5 Rc7 Rf5 Ra7 Rf7 Rc3 Kg2 f1R Nfd3 Nf2 Nc1 Rfh1 Ng6 Rd3 Ne5 R1h5 Kf1 Nh3 Nh1 Rg5 Nbd1 Rg7 Nb2 Ra1 Na2 Rd1 Nc1 Be8 Rf4 Ra7 Rf7 Bd7 Qd5+
N1RRqn2/qQ1p1Rq1/1b2q2B/B3q1np/5r2/Q1Bk3B/2PN4/1B1K2n1 b - - 0 1 illegal: Other
3B2Qk/3B1r2/1Bq1q1q1/3qnP1q/BrNb4/Kp5R/1NqBp1QQ/5R2 b - - 0 1 illegal: No possible last move, all moves rejected
Q2KRbn1/bQn5/nq2RN2/Pn2BbNp/6B1/1q6/2QR1p2/R1R1k2b b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 h3 b5 Bb2 h5 Ba3 g5 Bc1 f4 Ba3 Rh7 Bc1 Rf7 h4 Rf5 gxf5 g4 Qc2 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Ba6 Rh3 Bb7 Rh1 Bc8 Kf2 Kf7 d4 c5 e4 c4 a4 b3 f6 Kg6 f7 b2 d6 b4 a5 c3 d5 b3 d7 c2 d6 Bh6 f8Q Nc6 e5 Bb7 e6 Na7 e7 Nc8 e8R Na7 Qe7 Kf5 g6 Nb5 Nh3 Bf8 Nd2 b1B g7 b2 Ne4 Qb6+ Be3 c1N d8Q Nb3 d7 Bc6 Be2 Nc5 Qa8 Na6 d8R Bd3 Rd7 b1Q Qc2 Qb3 Bd4 Bd5 Nhg5 g3+ Ke1 Kg4 Kd2 g2 Rhc1 g1B Nf6+ Kg3 Be5 Kf2 Bd1 Bb7 Rd4 Bd5 Qeb7 Bf5 Re6 Kf1 Rd3 f2 Rd4 f3 Rd3 Nc5 Ke3 Na6+ Kf4 Ke1 Rd4 f1N Rd2 Nh6 g8R Ne3 Re8 Bc6 Rg6 Ng8 Rh6 Bc8 Rg6 Nd5+ Ke4 Ndc7+ Kf4 Ne6+ Kf5 Bgc5 Rh6 f2 Kg6 Bh1 Kf7 Bfd6 Rg6 Bb8 Rh6 Ba7 Rg6 Bd4 Rh6 Nec7+ Kf8 Bf5 Rg6 Nh6 Ke7 Ng8+ Kd8 Bc5 Nd7 Bf3 Rge6 Bh1 Nf6 Bf8 Bg4#
1b1nnq2/R2r1R1r/1K1R1N1Q/N2B1Q2/1Rp5/2Pb2p1/2pkq2Q/1Bn2R2 b - - 0 1 legal: proof: f4 b5 e4 f5 exf5 d5 a4 d4 axb5 d3 c3 Qd7 Qa4 Qd8 Qc2 dxc2 g4 g5 fxg5 h6 g6 Qd4 g5 Qd3 g7 Qd8 g6 Qd3 b3 Qd7 Ba3 Qd6 Bc5 Qd3 Be3 Qd8 Bg5 hxg5 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 d4 Ke3 h4 a5 f6 g4 b4 a4 h5 c6 d5 e5+ d6 a3 h6 e4 b6 a2 f7 Qd7 b7 Qd8 b5 Ra7 h7 Qd7 b6 Ra3 Nh3 Qc7 Nd2 Qd8 Ng5 Ra4 Nc4+ Kf2 Bg2 Ke2 Na5 e3 Ne4 Nh6 g8B Nf5 g7 Rd4 Nf6 Kd2 Bd5 e2 Rhf1 Be7 f8Q e1Q Bgf7 Qe2 g8R Ng7 Bfe6 Ne8 Rg7 Bd7 Bg8 Bf5 Rf7 Bd3 Qh6+ Qe3 Qg5 Bf8 Qf5 Bh6 d7 Bf4 Qe4 Qc8 d8R Qe2 Rd6 Bg3 Qf5 Bh2 Rab1 a1N Rb4 Qd8 Ba2 Qde7 Bb1 Qf8 Re7 Be5 Bd5 g3 Rf7 Rg8 h8Q Rg7 Qh2 Rh4 Ra4 Rhh7 Kb4 Nb3 Ra1 Nd7 b8Q Nc1 b7 c5+ Ka4 c4 Kb5 Nc5 Kb6 Ne6 Qc8 Rg5 b8R Nd8 Qce6 Rg4 Rbb7 Rd4 Ra4 Bf4 Rb4 Be5 Ra7 Bf4 Rdd7 Bb8 Qc6 Re4 Rd6 Re7 Qfh5 Rd7 Qc8 Re7 Qcf5 Rd7 Qh6+
4B1b1/1kRqQR2/3Qb1n1/r6p/1pP2N2/Nr2b3/2KN1pQq/1Bn1NN2 b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 f4 axb4 fxe5 Qf6 g4 Qd8 g5 h5 gxh6 Qb6 h7 Qd8 Na3 Bd6 Nb1 Nf6 Nf3 Rg8 h8N Bf8 Ng6 Rh8 Ng1 Rh7 Nh8 Ng8 h4 Rh5 Bh6 Rg5 h5 Rg6 Be3 Rg4 h6 Rg3 h7 Rg2 Bh6 gxh6 Qd4 h5 Qd1 Rg7 Kd2 f5 e4 b5 a4 d5 c4 Kd7 e6+ Kc7 e5 d4 a5 b3 c6 d3 a6 b2 a7 b4 e7 f4 e8N+ Kb6 e6 f3 e7 Rg3 c7 Qd5 Nd6 Bf5 c8N+ Kc7 e8B Be6 Nb5+ Kb7 Ne7 Na6 Nf5 Be7 Ne3 Nc7 Ng6 Qd4 h8Q Qh4 Qf6 Na6 Nf4 Nc5 Ra6 Qh2+ Be2 Bd8 Rc6 Bb6 N5a3 Ne7 Nf1 Ng6 Qe1 Bg8 Qd6 Nb3+ Kd1 d2 Bd3 Bd4 Kc2 Nc1 Qee6 Be3 Bf5 Rc8 Qee7+ Rc7 Be4 f2 Nf3 Rd7 Rg1 Rg5 Ne1 Ra5 Rg5 Be6 Rf5 Bg8 Nc3 Be6 Rf7 b1B+ Kb2 Bd3 Ncb1 d1Q Bf5 Be4 Nbd2 B4d5 Bb1 Qg4 Rh7 Bg8 Kc2 Bde6 Rf7 Qgh4 Qf8 Qe7 Qg7 Rd8 Qf6 Qd7 Qfe7 Ra8 Qc5 Nh8 Rf8 Qc7 Qeg5 Rd8 Qg2 Ka8 Rf7 Rd3 Qe7 Kb7 Rc5+ Kb6 a8Q Rb3 Qad8 Ng6 Rc6+ Kb7 Qdd6 Qd7 Rc7+
2K1b3/1N2k1b1/N4Nn1/2pp1BPQ/qp3R2/Qn1B1rB1/1r2b1BB/q2R4 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 gxh4 d4 e5 dxe5 b6 b4 b5 cxb5 axb4 Ke2 c5 Kf3 h5 Kf4 h3 g4 h4 a4 d6 g5 h2 a5 h3 b6 Ra6 b7 Rb6 e6 Rb5 e7 Kf7 e8B+ Ke7 f6+ Ke6 a6 Ne7 f7 Qb6 a7 Nbc6 b8N Qc7 a8B Ng8 Na3 Nd4 Bd3 Bb7 Qh5 Ne7 Nc4 Qd7 Na6 Bc6 Nf3 Bh6 f8Q Bg7 Nfe5 Bb7 Beg6 Bf3 Rd1 h1B Na5 h2 Ng4 Rg8 Nb7 Nec6 Nf6 Bh8 Qc8 Na7 Bgf5+ Ke7 Bb2 Nb3 Be5 Bhg2 Rf1 h1Q Rad1 Bh3 Qc6 Be2 Qcf3 Bg2 Ke4 Bh3 Kd5 Rf8 Bg3 Nc8 Bh2 Qg1 Qg3 Rb6 f4 Qa4 Qgf3 Rb5 Kc6 Ra5+ Kc7 Bg7 Bg3 Bg2 Qe3+ Be4 Qc1 Bc6 Qa3 Be8 Rf2 Nb6 Rf3 Nd5+ Kc8 Rf7 Ng4 Qe3 Bg6 Ke6 f5+ Ke7 Qb2 Rf8 Nd8 Nf4 Rff1 Na1 Bg2 d5 Nb7 Nb3 Bh2 Qc1 f6+ Ke6 f7 Qb5 B6e4 Ra2 Qa3 Qa1 Rf2 Ng6 Rff1 Rg8 f8B Rb2 Bfd6 Rf8 Bdg3 Qa4 Rf3 Rf5 Nf6 Ke7 Rff1 Rf4 Bf5 Rf2 Rc1 Rf4 Rc4 Rf2 Rf4 Rf3 Rd1
R2r4/1rq1Qp1k/2N3bP/4Q3/1n1B1Kn1/R2B1BpB/2pR1Bb1/1qn2N2 b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 f4 exf4 a3 h5 a4 hxg4 axb5 a4 Qb3 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Ra6 Kf2 Ra7 Ke1 Ra8 Kf2 Kf8 d4 c5 h4 g5 e4 Kg7 b6 f3 Kg3 a3 e5 c4 e6 a2 d6 c3 e7 c2 e8B f2 d7 Ra6 d5 Nf6 b7 Re6 a6 Qe7 d8R Qf8 a7 Qa3+ Be3 Rg8 a8B Nh7 h5 Rf6 d6 Qa4 d7 Nc6 b8B Qa7 Nf3 Nb4 Qd6 Qc7 Bd3 f1B Bf2 Bg2 h6+ Kh8 Qf4 Rb6 Rd1 Nf6 Qe5 Rb7 Nbd2 Rf8 Bba7 Rg8 Ne4 Kh7 Nd4 Rf8 Nc6 Rh8 Rab1 a1Q Rb3 Qb1 Ra3 Rg8 Bfd4 Rh8 Rd2 Rg8 Kf2 g3+ Ke3 g4 Bac5 Bh3 Bb6 g2 Kf4 g1N Bf2 g3 Bbd4 Rb5 Bb7 Ng4 Ba8 Ba6 Bb7 Rb6 Ra8 Bg2 d8Q Bc4 Bc8 Rb7 Qe7 Be6 Bed7 Bf5 Be6 Rd8 Bd5 Bg6 Bf5 Ne3 Bh3 Ng4 Nd6 Nf6 Nf5 Ng4 Ne3 Ne2+ Kg5 Ra7 Nf1 Rb7 Bf3 Nc1 Kf4
1QK4N/r1bQpRP1/4q2b/2p3r1/Q3R2n/1qn3p1/b4R2/BBkNR2R b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 Kf7 h4 c5 b4 a5 d4 g3+ Kf3 a4 Kg4 f3 d6 a3 d7 a2 f6 Ke6 h5 Kd5 Kf5 f2 g6 Rh7 b6 Ba6 b7 Qc8 b5 Qc7 d8R+ Nd7 b8R Rg7 f7 Bc8 b6 Qd6 h6 Qc7 b7 Rh7 Bd3 f1Q+ Nf3 Bg7 f8R Bh8 Bb2 Qc1 Rf7 Qg1 Ng5 Ra3 Rdf8 Rg7 h7 Qd6 Ra8 Ra7 b8Q Qe3 Nc3+ Kc6 Nd1 Kd5 Be4+ Kc4 d5 Ngf6 Bb1 Ne4 Bc3 Qa6 d6 Ne5+ d7 Nf3 Qf4 Qb7 Ke6 Qb3 Rb8 Bb7 d8Q Nh4 Kd7 Bd5+ Kc8 Qe2 Bd4 Nc3 Qd7 Qe6 Qg4 Rg8 Rb7 Be5 h8Q Bc7 Qe5 Bd8 Qb8 Bc7 Rf2 Rg7 Nf7 Rg8 Nh8 Rg7 Rc2 Kd3 Bf6 Rg8 Qa4 Rg7 Rb4 Rg8 Rc1+ Kd2 Re4 Rg7 Bd4 Bc4 Rf7 Bd5 Bc2 Bc4 Rab1 a1B Rb2 Bd5 Ra2 Bb2 Rca1 Bc4 Bb1 Kc1 Re5 Ba3 Raf2 Bb4 Ree1 Bba5 Raa2 Bf4 Bf6 Bac7 Rae2 Bh6 Re3 Qb5 R3e2 Ba2 Re4 Qbb3 Be5 Ne2 Ba1 Nc3 R7f5 Rf7 R5f3 Rf5 g7 Rg5 Rf7
1RNbnn2/QBpn2Bq/4kPR1/nK3pRr/RN3p2/5Q1b/3R2B1/6r1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 e4 gxh4 f3 f5 e5 e6 f4 Qf6 exf6 e5 Bc4 exf4 Be2 Bd6 Bf1 Bf8 Ke2 Kd7 Kd3 a5 Kc4 h5 g4 a4 b4 a3 d4 a2 b6 h3 b5 h4 b7 h2 b6 h3 g5 Ba3 g6 Ne7 g7 Bc5 g8B Rh7 d6 Rh4 d5 Ra6 Nd2 Ra8 Ba3 Rh7 Ngf3 Bg1 Ne4 Ng6 Ne1 Ra4+ Kb5 Ne7 Nd3 Ng6 Nb4 Nf8 Qf3 Bc5 Bg2 Rh5 Rhg1 h1Q Bf7 h2 Bg8 Nc6 b8Q Ne5 Qa7 Bb7 Bf7 Ba8 b7 Ra6 b8R Rc6 Rac1 a1N Rc4 Nb3 Rd4 Na5 Rc4 Nh7 Rg8 Nf8 Rg5 Bf2 Rd4 Rc1 Rd2 Bc5 Be6+ Ke8 Bc8 Kf7 d7 Be7 d8R Ned7 d6 Ke6 Bb7 Ra1 Rb8 Bd8 Nc3 Rf1 Na4 Rd1 Nb6 Ra1 Rc1 Rb1 Rc4 Rg1 Ba6 Be4 Nc8 Bd3 Bb7 Be2 Qf1 Bg4 Qf3 Bh3 Na6 Re1 Ra4 Rd1 Nb4 Rg1 Bf1 Qg2 Rg6 h1N Rg5 Qh2 Bg2 Nf2 Rg6 Nc5 d7 Nfe4 Rg5 Be7 d8R Ncd7 Re8 Nd6+ Ka6 Nh7 Reg8 Ne8 R8g6 Bd8 Kb5 Qh1 Na2 Qh2 Bf8 Qh1 Bg7 Nhf8 Nb4 Rh8 Raa2 Bg4 Qc5 Qh6 Qa7 Bh3 Ra1 Rh7 Bh8 Qg7 Raa2 Rh5 Ra4 Qh7 Bg7
2K1Rb2/qPp2kN1/3r3p/Rn4Nn/R1r2B2/2rb2rB/QR2p1B1/Q5R1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 e5 Kd3 e4+ Kc4 h6 g4 h3 d4 e3 f4 h2 b6 b3 Kb5 b2 f6 e2 g5 Bg7 g6 Ra2 d6 Ra4 f5 Ne7 b7 Nbc6 d7+ Kf8 d5 Ne5 d6 Qe8 f7 Nd5 Bg2 Qe6 d8R+ Qe8+ d7 Nd3 Kc6 Nc3 Bf4 Ra3 Nf3 Rb3 Nd4 Be5 g7+ Ke7 g8B Bf6 f8R Rb4 Ra5 Rh7 Rg1 h1R Nd2 b1R Ne4 R4b2 Ne6 Rg7 N4g5 Rh4 Qd2 Rb5 Qa2 Rc1 Bh7 Rg8 Ng7 Rd5 Ra4 Qf7 Ra5 Be5 Rde8+ Kf6 d8R Bd6 Re4 Nb5+ Rc4 Rc2 Rfe8 Rc3 Bh3 Bc5 Rca4 Rd7 Qa1 Qa2 Bg6 Rg4 Bf7 Rd4 Bd5 Rdc4 Rd7 Rg3 Bdg2 Qa3 Rd5 Bf8+ Rc5 Be6 Qa2 Bd5+ Kd7 Be4 Kc8 Rh8 Rd5 Qc5 Rd4 Qa7 Rb4 Rh7 Rb2 Rh8 N5e6 Kf7 f6 Nf2 Qa1 Bd3 Qa2 Ng4 Ng5+ Kg6 f7 Nf6 Qa1 Nh5 Qa2 Bc5 f8Q Bb4 Qg8 Bf8 Qa1 Rh7 Rde4 Kf6 Nf5 Rd7 Ng7 Rd6 Qd5 Rc5 Rea4 R5c4 Qc5 Kg6 Qca3 Kf6 Q3a2 Kg6 Nh7 Kf7 Ng5+
q2RQ1N1/8/p1q3pN/N2n1QrR/1b2Nbn1/1q1k3N/1B1Pp3/bB2Q2K b - - 0 1 legal: proof: g4 b5 a4 f5 gxf5 a6 e4 g6 h4 e6 c4 bxc4 h5 d5 f4 dxe4 f6 Bb7 f5 Bc6 h6 Bb5 axb5 Ne7 Rh2 Rg8 Rh1 Rg7 hxg7 Ng8 Rh2 Be7 Rh6 Bf8 Rh1 Qd3 Ra2 Bc5 Bg2 Ne7 Qc2 Kd7 Ra1 Nbc6 Ne2 Rh8 Qa4 Ke8 Qc2 Qd8 Ng1 Ng8 Qd1 Bf8 Bf1 Nb8 Kf2 Kd7 Kg2 Kd6 b4 Ke5 b6 Kd4 b5 c5 b7 h5 b6 e5 f7 h4 f6 e3 Qc2 h3+ Kh2 e4 Qa4 e2 Qb3 e1B Bb2+ c3 Qd1 c4 Ra4 Ne7 g8N e3 Nh6 Nbc6 b8N Qd5 b7 Ne5 Nd7 e2 b8N Qb5 Nc6+ Kd3 Na5 c2 Bg2 c1B Bd5 c3 Ba2 c2 Nc3 Nd5 Ne4 Bb4 f8Q Qc4 f7 Qb3 Qe7 Bh4 f8Q Bg5 Qe1 Bf4+ Ng3 Rh7 Nf6 Rf7 Nfg8 Rf5 Qee8 Rg5 Bc3 Bca3 Bb2 c1Q Qff7 Qc6 Qf6 Be3 Ne4 Bc3 Rc4 Bab4 Qf5 Qa8 Rc8 Ng4+ Kg3 h2 Kg2 Bf6 Nh3 Bf4 Rd8 Qc6 Ba3 Ba1 Bb2 Rh5 Rg1 Rg5 Kh1 Ne3 Rg4 Qa8 Rh4 Ng4 Rh5 Bfd6 Kg2 Nf4+ Kf3 h1Q+ Kg3 Qf1 Qf2 Qc1 Qe1 Nd5+ Kg2 Qcc6 Kh1 Bf4 Bb1+
n2Q1b2/2P1Qb2/bq4Rp/1N3R2/6Kp/Q1rn1B1Q/1kN4p/q1nQRB2 b - - 0 1 illegal: Other
2Bn2k1/2N2R2/QRQp1B1Q/bpbq1bK1/1rbb2P1/1B5Q/3pN3/4r1Q1 b - - 0 1 legal: proof: e4 c5 g4 a5 d4 cxd4 b4 f5 exf5 axb4 f3 g5 Bb2 h5 Ba3 Nc6 Bc1 Ne5 gxh5 g4 Bh3 g3 Bf1 Ng4 fxg4 Rh7 Be3 Rh6 Bc1 Rh8 Kd2 Kf7 a4 b5 h4 e5 c4 d6 h6 d3 Ke3 b3 h7 b2 a5 g2 a6 e4 Kf4 e3 f6 e2 h5 e1B a7 d2 c5 Qa5 h6 Bf5 c6 Bd3 c7 Qb6 c8B Bf2 Kg5 Bc2 Ra6 Bd3 Nc3 b1B Nge2 g1B Bb2 Bg6 Nd5 Bh5 Nc7 Qc6 Rb6 Be7 Bg2 Bf5 Bd5+ Kf8 Bb3 Bd8 Qa1 Qc4 Qa6 Ne7 f7 Nc6+ Bf6 Qd5 Rh2 Bd4 Rf2 Bhg6 Rf4 Rg8 h8Q Bd3+ Rf5 Bc4 h7 Bc5 Bd7 Rc8 a8Q Bgd4 Q8b7 Ra8 Bc8 Ra7 Qa1 Ra4 Qa6 Rb4 Qg1 Ne7 Be5 Nc6+ Qf6 Bb2 h8Q Bbd4 Qh3 Rh8 Rf4 Bf5 Rf1 Ne7 Qe6 Nc6+ Bf6 Rh4 Qd7 Rh6 Ne8 Bc7 Rf4 Nd8 Qc6 Rh7 Rb7 B7b6 Nc7 Ba5 Rb6 Rh6 Be7+ Kg7 f8Q+ Kh7 Qf6 Kg8 Rf1 Rh7 Qfh6 Rf7 Bf6 Re7 Nf4 Re1 Ne2 Bd7+ Be5 Be6 Rf7 Bf5 Bf6
nnq1NQ2/2rN1pKB/2k1Q3/1R1n3P/5QQ1/p2r1B2/1r2R1Rp/2br3Q b - - 0 1 illegal: No proof kernel
b2k1BK1/2pQ3p/4r3/1RrrQ1Br/4Nb1B/5nNP/1b1pR2B/3Bq2R b - - 0 1 illegal: No possible last move
3BNK2/p1Br1Pr1/1bRQ1nk1/1Br3q1/2p3rp/b1q1N1N1/Q1BR2B1/8 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 Rh2 gxh4 Rh3 Bb7 Rh1 Bc8 Be2 e5 Bf1 Nd7 Qa4 Nc5 Qd1 f4 f3 Bf5 exf5 e4 Qc2 e3 Qd1 Ne4 fxe4 Ke7 Ra5 Kf7 Ra1 Ke8 Ke2 Kf7 Kf3 h5 b4 c5 g4 e2 d4 e1Q d5 c3 b6 c2 b5 c4 e5 h3 b7 h4 b8N h2 b6 Qf2+ Ke4 f3 f6 Qd7 e6+ Kg6 Ke5 Rh7 g5 Qc8 e7 Qcc5 Ke6 Rf7 e8B Qe1+ Qe2 f2 d6 Qd1 b7 Qc7 d7 Qc8 Nd2 Bb4 Ra6 Qc5 d8B Bc3 Nd7 Rc8 b8Q Kh7 g6+ Kh6 g7 Ne7 g8B Ba5 Bh7 Rg7 f7 Kg5 Nf6 Qd4 Bb5 Rc5 Rc6 Nd5 Ne8+ Nf6 Ke7 Qc3 Kf8 Bb6 Bh3 Qe1 Nf1+ Qed2 Qc7 Qf4 Qd2 Kh5 Ne2 Qg5 Rg1 h1R Bg2 Rh3 Bhe4 Rd3 Neg3+ Kh6 Qe2 Rd6 Bf4 c1B Ne3 Ba3 Qa2 Rd4 Bd6 f1R Bc2 Rff4 Rd1 Rg4 Rd2 Rdd5 Qe7 Rd3 B6c7 Rd7 Bca4 Kh7 Qd6 Kg6 Bc2+
r2k3N/7r/4Qn2/3bpQRB/n5p1/r1RQP1np/R2K3B/Nb1n2QQ b - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 b5 axb5 f5 g4 fxg4 h4 a5 Ra3 g5 Rc3 a4 Rf3 g3 Ra3 g4 Ra1 Qa5 bxa5 Bh6 Ra3 Kf7 Ra1 Bg5 hxg5 Ke8 c4 h5 f4 e5 a6 d5 f5 d3 b6 a3 g6 d4 b7 a2 a7 g2 f6 h4 c5 h3 g7 Nh6 g8R+ Kd7 f7 Kc7 f8Q Be6 c6 Nd7 Kd2 Nc5 Rg5 Rh7 Nf3 g1N Na3 Na4 Nh4 Nb6 Ng6 Rd7 Nh8 Rb8 a8Q Nd5 Nc2 Nb6 Qf5 Bd5 Bg2 Na4 Be4 Rc8 b8Q+ Kd8 Qb1 Ng8 Rh2 Rh7 c7+ Ke8 Rf2 Nf6 Rf3 Rb8 Qa6 Ra8 c8Q+ Ke7 Qcb7+ Kd8 Qe1 Ng8 Qae6 Nf6 Kd1 d2 Rc3 Nf3 Q7b5 Nh2 Qg1 Nf1 Qd3 Ng3 Qb7 Bc4 Bc6 Bb3 Be8 Bd5 Rb1 a1R Rb2 Ra2 Na1 Ra3 Kc2 d1B+ Kd2 B1b3 Ra2 Bc2 Bh5 Bb1 Qbc6 Bb3 Qch1 Bd5 Ke1 Nge4 Bf4 Ng3 Qc4 d3 e3 d2+ Kd1 Nge4 Bh2 Ng3 Qb3 Nge4 Ke2 d1N Qb5 Ng3+ Kd2 Nd7 Qba6 Nf6 Qad3
1rNN4/2Nr3Q/p2Qr2q/3pn1Qq/Q2K1B2/3BP1Q1/qkp3R1/r1b2R2 b - - 0 1 legal: proof: f4 b5 c4 e5 cxb5 exf4 b4 g5 a4 c5 d4 c4 h4 gxh4 a5 d6 b6 Bg4 b5 Bf3 a6 Bb7 axb7 Nd7 Bb2 Be7 Bc1 Nc5 dxc5 Bf8 Kd2 Ke7 Kc3 Ke6 b8Q Ke5 g4 h5 b7 f5 b6 h3 c6 a6 g5 h2 g6 f3 c7 f4 c8Q h4 g7 f2 Qa4 f3 Qb4 h3 Qa7 d5 b8N Rh7 b7 Qa5 Nd2 Ne7 g8Q Ng6 Ra2 Bh6 Qg4 Rd7 Ne4 Bf4 Rd2 Qa2 Nd6 Bh6 Qg3+ Bf4 Bg2 f1R Nc8 f2 Be4 Re1 Qa4 f1Q Bb1 Qf3+ Bd3 Qh5 Qh7 Qh6 Qaf2 Qh5 Qfg2 Qh6 Kb4 c3 Kc5 c2 Nc6+ Kf6 b8Q Ne5 Qb6 Rb8 Nf3 Qh5 Rf1 h1Q Qbb4 h2 Ng5 Qh6 Qg1 Qf3 Nd8 h1R Kd4 Qfh5 Bb2 Ra1 Bc1 Rh4 Nge6 Rg4 Qd6 Rg6 Bc4 Kf5 Kc3 Ke4 Nc7 Qf5 Qg5 Re6 Q1g3 Be3 Rf2 Qfg6 Rg2 Bf4 Rd1 Qf5 Rf1 Be3 Ba3 Bc1 Bc5 Qfg6 Be3 Qh5 Bf4 Qh6 Qhe7 Qgh5 e3 Ra8 Kb4 Rb8+ Kc5 Nc6 Bb3+ Kd3 Bc4+ Kc3 Qh7 Kb2 Bd3 Ne5 Kd4
RR2QKb1/nRPk3N/Bq6/4R3/1Bn1Rp1p/B3n3/1rp2Qq1/1Nq4q b - - 0 1 legal: proof: f4 a5 b4 b5 d4 g5 h4 gxh4 a4 e5 axb5 exf4 c4 c5 b6 a4 b5 Nh6 b7 Ra5 b6 Rb5 cxb5 c4 Nh3 Be7 Ng1 Bc5 dxc5 Ng8 Kd2 f5 Kc3 h5 Kb4 d5 e4 d4 g4 a3 c6 c3 Kc5 h3 g5 f3 g6 h2 g7 a2 e5 h4 e6 c2 e7 f4 Nh3 d3 Qe1 f2 Ng5 d2 Ba3 d1N Nh7 Bd7 Kd6 Nh6 g8R+ Kf7 Rg5 Ke8 Re5 Rf8 c7 Nc6 b8B Ng4 b7 Nde3 b6 Na7 Ba6 f1Q Qf2 Qg2 Re1 h1Q Re4 Ne5 Bb4 Nac6 Ba7 Qb8 Re2 Be6 Re1 Qc8 b8R Bg8 b7 Rf5 Bac5 Na7 Ra8 Qb8 Ba3 Rh5 Bcb4 Rg5 Nc3 Rf5 Rab1 a1Q Rb2 Qc1 Nb1 Nf7+ Ke6 Rb5 Rb3 Ne5+ Kf6 Qgf1 Kg7 N5c4 Re2 Kd7 Re1 Qe8 b8R Qg6+ Kf8 Qfg2 Re5 Nf1 R1e4 Qb6 Rg3 Nfe3 Rg6 Qc5 Rgb6 Qd4 R6b7 Qb6 Bd2 Rb3 Bdb4 Rb2 e8Q#
N6R/1B3p1k/R5n1/nq1p3K/pN3q2/1nnPbNBQ/N1R1N2Q/n1b5 b - - 0 1 legal: proof: c4 a5 b4 e5 f4 exf4 a4 b5 Nf3 bxa4 b5 Ra6 Ng1 Rd6 b6 c5 g4 g5 Ra3 h5 Nf3 h4 Ra1 Rh5 Ng1 Rd3 Bh3 Rb3 Bf1 Rb5 cxb5 Qe7 Bb2 Qf6 Bc1 Qd8 h3 Bb7 gxh5 g4 Ra3 g3 Ra2 Bf3 Ra1 Bg4 hxg4 Qg5 Ba3 Qe7 Bc1 Qd8 e4 d5 Ke2 h3 Kf3 a3 h6 h2 h7 g2 h8N c4 e5 c3 e6 a2 g5 c2 Kg4 f3 e7 f2 g6 Na6 b7 Nb4 b8N Qd6 g7 Qg3+ Kh5 Nc6 b6 Qd6 b7 Qg3 Nc3 Nd8 Nc6 Qb8 Qg4 Qf4 Ba6 f1Q b8Q Qb5 Nge2 g1B d3 Be3 Ng6 a4 Qh3 Qa5 Qb2 Qb5 Nb4 Nb7 Nh4 Na5 Rb1 a1N Nca2 Qd7 Bd2 c1N Be1 Qb5 Bg3 Ncb3 Rhc1 h1N Nf3 Nf2 Rc2 Nd1 Bb7 Nc3 Rbc1 Nh6 g8R Ng4 Rg6 Bh6 Rh1 Ne5 Ra6 Ng6 Qb1 Qd4 Qg1 Bc1 Qf2 Bhe3 Qfh2 Qf4 Qf1 Kd7 e8N Ke7 Qfh3 Kf8 Nc7 Kg7 Na8 Kg8 Rd1 Kh7 Rdd2 Nd1 Rc8 Nc3 Rc2 Bb2 Re8 Bbc1 Rh8+
KQ3r1B/1NP5/1R1r2N1/N2k2Q1/1qp2R2/1B1pb2p/b2qN3/1qB1bN1q b - - 0 1 legal: proof: f4 c5 d4 g5 a4 e5 c4 exf4 b4 b5 cxb5 c4 h4 gxh4 b6 Qg5 a5 Ne7 b5 Na6 b7 Nc5 dxc5 Nd5 Qa4 Qg8 Qd1 Nb6 axb6 Qg5 Ra3 Qf6 Ra1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 f5 Ka5 h5 Ka6 d5 e4 f3 g4 f2 e5 h3 c6 h4 g5 f4 g6 h2 g7 h3 g8N f3 Bd3 f1Q Nd2 f2 Bc2 d4 Ne7 d3 Rb1 Rg8 Qh5 Bg7 Qg5 Bd7 b8B Bh8 Kb7 a5 Ng6 a4 Ne2 a3 Bb3 Qd1 Rf1 Kd5 e6+ Be5 c7 h1Q e7 a2 e8N a1B Nd6 Rf8 Ba7 Qe7 Rb2 Rad8 Rb1 Bc8+ Ka8 Bd4 b7 Bg4+ b8N Be3 Nb7 Qb4 Bd4 Rd6 b6 Bd7 Ba1 Ba4 Rb2 Rff6 Nc6 Rf8+ Nbd8 Qc2 b7 Qcc3 b8Q Qc2 Qg1 Bg3 Nb7 Qb1 Nca5 Qh2 Re1 f1Q Rd1 Qf4 Rf1 Be1 Qg4 Qg5 Rf4 Qh1 Nf1 Qh6 Ra2 Qg5 Bh8 Qh6 Rb2 Qg5 Bc2 Bb3 Qh5 Ba2 Rb3 Qa3 Rb6 Qab4 Qh6 Qgg2 Bb3 Qf2 Ng1 Qfb2 Ne2 Q2d2 Qg5+
2K2b2/1rN1b2b/Q1pr1b2/3NpNk1/q1P3rQ/2NpR3/N1r3R1/2B2R1B b - - 0 1 legal: proof: f4 b5 e4 g5 g4 e5 a4 f6 axb5 Ne7 d4 Na6 h4 exd4 e5 fxe5 f5 Nc5 f6 Nf5 gxf5 g4 Bc4 Ne4 Bf1 Ng5 hxg5 Bd6 Bd3 Bc5 Bf1 Bf8 Ke2 Kf7 Kd3 h5 Kc4 a5 Kd5 a4 c4 d3 b4 d2 g6+ Kg8 b6 a3 f7+ Kg7 b5 Kf6 b7 d6 Kc6 g3 b8N d5 b6 h4 g7 g2 g8R a2 b7 h3 Ne2 g1B Nd7+ Ke7 b8Q h2 Qb6 d4 Qe1 d1R Nf6 Ra7 Nec3 Be3 Qh4 Rb7 Qa6 Bg5 Bg2 d3 Re1 h1R Re3 Rd2 Be4 Rg1 Bh1 Rg4 Rg7 Qd4 Rg8 Qa7 Nfd5+ Kd8 f6 Rh6 Rg7 Bf5 Rg6 Be7 f8N Rc2 f7 Bgf6 Rg8 Bh7 Ng6+ Bf8 Nge7 Rhg6 Nf5 Qa8 Qb5 Qa4 Rg7 B8e7 f8N Ke8 Rg8 Kf7 Kd7 c6+ Kc8 Rh6 Ne6 Bf8 Rh8 Kg6 Nec7 B8e7 Qa6 Bf8 Qg3 Kg5 Rg8+ Rg6 Nd1 B8e7 Nbc3 Bf8 Rb1 a1B Na2 Bd4 N1c3 Bdc5 Qh2 Bce7 Qf2 B6g7 Qh2 Rd6 Qf4+ Kh5 Qe4 Bgf6 Rg7 Rf4 Rg2 Rg4 Qd4 Kg5 Ra1 Rg3 Qh4+ Kg6 Bb2 Rg5 Rf1 Rg4 Qe1 Kh5 Bc1 Kg5 Qh4+
3K4/1B2r1k1/R3QpNb/2np1r2/Qrp1p2Q/2R4P/1QQq3B/4bRnN b - - 0 1 illegal: No proof kernel
1KR3N1/Q1B1Qq1n/1Q3Q2/4Pk1B/R3rr2/pbbN2n1/2pp1p1q/1N5Q b - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 b5 axb5 Bb7 gxh5 Bc8 b4 Nc6 b6 Rb8 b7 Ra8 b5 Nb8 b6 Bb4 Qa4 Bd6 Qd1 Bf8 d4 Qg5 Kf2 Qb5 cxb5 Bc5 Bd2 Bxd4+ Be3 Bc3 Bc1 Bd2 Kf3 Ke7 Ke4 Ke6 h4 c5 e3 a5 h6 g5 h5 f3 h7 f2 h6 a4 Qe1 c4 Nh3 g4 Be2 f1Q Nf2 g3 Nd3 c3 Bh5 Nc6 b8N c2 b7 g2 b6 Nd4 Nc6 g1Q b8Q Nf5 b7 Qh2 Ne7 Bc3 Qa7 Kf6 Kd5 Ng3 Kc5 d5 Kd6 d4 Kc7 Be6 b8Q Bb3 e4 Qff2 Qbb7 Re8 Bf4 Ke6 Bd6 f5 Qbb6 Nf6 Ng8 f4 Qe3 Re7+ Kb8 f3 e5 Kf5 Bc7 Rf7 Qc1 Qf1 Qa3 f2 Qe7 Qfh3 Nc1 d3 Ra3 d2 Nd3 Nf1 Rg1 Qf3 Rg4 Ng3 Rd4 Nfe4 Rd8 Ng5 Rc8 Qf4 Nf6 Rd8 h8Q Nh7 Ng8 Rd4 Qg7 Re4 Ra2 Nf8 h7 Rf6 h8Q Nh7 Rb2 a3 Qh6 Ba2 Rb4 Bb3 Ra4 Qg1 Kb7 Rg6 Rd4 Rg4 Ra4 Rh4 Bg6+ Kg4 Ka8 Qf7 Qhf6 Qg2 Kb8 Qg1 Qhe3 Qh2 Qe1 Rh5 Qd4 Rf5 Qdb6 Rff4 Qh1 Bb2 Qfd6 Bc3 Bh5+ Kf5 Qdf6+
b3r1B1/K1p3pp/R2N3Q/1rB2P1R/NN2pb1N/2krn2b/3NB3/4Q2q b - - 0 1 legal: proof: e4 d5 g4 a5 b4 axb4 c4 f5 exf5 Ra6 cxd5 Ra8 f4 Ra6 g5 Ra8 f6 Qd6 f5 Nd7 h4 Qh2 f7+ Kd8 h5 Ndf6 gxf6 Kd7 Bg2 Qxh5 Bf1 Qh2 a4 Kd6 d4 b5 a5 e5 a6 b3 a7 e4 Be3 b4 Nc3 b2 Be2 b1R Kd2 b3 Na4 b2 Kc3 Rb8 Kc4 Qh5 a8B Rb6 Qe1 Rc6+ Kb5 Qf3 Rh5 Be7 f8Q Be6 f7 Rc3 Ka6 Qf1 Ka7 Qh3 Nf3 Rbc1 Nd2 b1B Ra3 Kd7 d6 Nf6 d5 Ng4 Bc5 Qh1 Qb8 Bf6 Qb6 Ne3 Bb7 Rd3 f8N+ Ke8 d7+ Kf7 d6 Bd5 Bc6 Bg5 d8N+ Kf6 d7 Ke5 Nb7 Bf4 d8N Bba2 Bb5 Rb1 Bc4 Rb5 Nd6 Ba8 Bg8 Be6 Ng6+ Kd5 Bf7 Re8 Nh4 Ke5 Ra2 Bb3 Bg8 Bd1 Bf1 Bg4 Be2 Bh3 Nc6+ Kf6 Nb4 Ke5 Nb7 Nd1 Qh6 Ne3 Be7 Kd4 Nd6 Bg4 Nc3 Bh3 Ra6 Bg5 Na4 Bf4 Bf8 Re7 Nb7 Re6 Nb6 Ree5 Bc5+ Kc3 Nd6 Re8 Na4#
1qN5/2bpB2n/2N3KN/r1Q2N2/2nP2pQ/5QpN/2r1qRp1/2k2rRB b - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 h5 axb5 f5 e4 h4 g4 hxg3 f4 Bb7 Qg4 fxg4 f5 Bd5 f6 Bf7 Ra6 Be6 Ra1 Bf5 exf5 Rh6 Bc4 Rh4 Bf1 Rh8 Ke2 Kf7 Ke3 a5 Kf4 e5+ Kg5 e4 c4 e3 d4 g6 h4 a4 h5 e2 b6 e1R c6 a3 c5 a2 c7 Be7 c8Q Nc6 h6 Ra4 h7 Re6 b7 Nh6 b8N Ne5 c6 Bc5 c7 Ng8 Nc3 Rc4 Rh2 Ba7 Nc6 Bb8 Nd1 Rc2 Rf2 Nc4 Bg2 Re5 Ba3 Ra5 Bh1 g2 Ne3 g3 Nh3 Qe8 Rg1 a1Q Bd6 Qe1 Qd8 Qe2 c8N Bc7 Bb4 Qe5 Ba3 Qb5 Be7 Qb8 Rb1 Nh6 Rg1 Rf8 h8N+ Kg8 f7+ Kh7 Kh4 Ng4 f6 g5+ Kh5 Nh6+ Rf3 g4+ Nf5 Ng8 Rf2 Re8 Bb4 Re3 f8Q Rf3 f7 Nf6+ Kg5 Rf4 Qc5 Rf3 Nfe7 Kg7 Ba3 Nh7+ Kh5 Kf6 f8Q+ Ke6 Nf5 Rf4 Qh4 Rf3 Qa7 Kd5 Qac5+ Ke4 Nf7 Kd3 N7h6 Kd2 Qf7 Rb3 Qff8 Rb1 Kg6 Rf1 Qf7 Kd1 Qfd5 Kd2 Qf3 Kd1 Qcd5 Kd2 Be7 Kc1 Qc5
5R1r/P1r1BB1N/K1n1B2p/6Qk/Qb2Br2/1B1R1n1p/1p3pQq/4r2N b - - 0 1 illegal: No possible last move
N1nN3Q/3Kp2B/2pNp2B/1P1R3b/1B2NbN1/3pr2Q/k1n3r1/n1R2n2 b - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 c6 b4 Nf6 d4 Bb7 a4 Bc8 e5 Ng8 a5 Bb7 e6 fxe6 a6 Qa5 c4 Qd8 cxb5 Nf6 d5 Qc7 b6 Bc8 d6 Qb7 axb7 Ne4 b5 Nxd6 Bd2 Nc4 Bc1 Nd2 Ke2 Kf7 Kd3 a5 Kd4 g5 Kc5 d5 f4 a4 h4 a3 h6 a2 f5 d4 h7 g4 h5 g3 h6 g2 f6 Ra7 Nf3 g1N Nh2 Ra4 Qf3 Ra5 Ng4 Rg8 h8N+ Ke8 f7+ Kd7 h7 Ra3 Qh3 Ra7 Bd3 Nf1 Ba3 Bh6 f8B Ng3 Nf7 Nf1 h8N Ra8 Nd2 Ne2 Bh7 Bf4 Bb4 Ra3 Nd6 Re3 N2e4 d3 Rc1 a1N Bh6 Nd4 Nhf7 Ndc2 Nd8 Rg7 Nh2 Rg2 Rg1 Rge2 Rg5 Rg2 Ng4 Na6+ Kc4 Nc7 b8Q Nd5 b7 Nb6+ Kc5 Bg3 Rf5 Bf4 Qa8 Kc7 b8N Bd7 Rd5 Be8 Nd7 Nc8 Nb6 Bh5 Qa2 Kb8 Qb2 Ka7 Na8 Rge2 Nc7 Rg2 Kc4 Kb6 Qg7 Nd4 Qh8 Ndc2 Na8+ Ka7 N8b7 Rd2 Nc7 Kb6 Nd8 Rh2 Ba3 Ka5 Kc5 Ka4 Na8 Kb3 Bb4 Na7 Kb6 Rg2 Kc7 Ka2 Kd7 Nc8 Qe5 Nh2 Qc3 Nf1 Qh8
1N2Q3/RQ1B2pp/3R4/pn2B3/KNBRk3/pP1q4/2qB2b1/rnqB2n1 b - - 0 1 illegal: No proof kernel
5N1R/ppp1nr1Q/4b3/qpQ1NQNk/N6b/5r2/2NpP3/2RKB1Bb b - - 0 1 illegal: Other
5KN1/1pnQr3/pR1p1QRB/pN3N1p/2P5/B2qRR2/2n4R/1q2kbr1 b - - 0 1 illegal: Other
Q2QBQ2/3R1K1b/pB1p4/bppR2N1/4p3/k1N1RPnR/2n1Rbq1/4b3 b - - 0 1 illegal: No proof kernel
r1B3QK/B3n3/1R1ppN2/1P1Qqpp1/1B2B1qB/p3R1p1/1n1Nk3/R6r b - - 0 1 legal: proof: e4 c5 g4 b5 d4 cxd4 a4 h5 axb5 hxg4 f4 d6 f5 Qc7 e5 Bd7 e6 Kd8 exd7 e6 Qe2 Ke7 Qd2 Kf6 Qd1 Ke5 f6 Be7 fxe7 Qd8 Be2 Kf5 Bf1 Kf6 Kf2 Ke5 Kg3 Ke4 e8R a5 c4 f5 b4 d3 h4 a4 b6 d2 b7 Ke3 c5 a3 h5 g6 h6 Ra4 h7 Qc7 Kh4 g3 Kg5 Kf2 d8B Ne7 Kf6 Ke3 Kg7 Ra7 c6 Nd7 b8B Qb7 c7 Qb5 c8B Ra6 Bd3 Qc4 b5 Kf2 Be4 Ra5 Nh3+ Ke3 Ba7+ Nb6 Re1+ Qe2 Nf4 Nd5 Bh4 g5 Nh5 Ne7 Nf6 Kf2 Qb3 d1Q Bd2 Qg4 Qd5 Qde2 Bc3 Qe3 Rf8 Na4 Bb4 Nb2 Nd2 Qd4 Re3 Qe5 Re8 Ra6 Rf8 Rc6 Rf7 Rf8 h8Q Rc1 Qg8 Rh1 Kh8 Re8 Bb7 Ra8 Bc8 Nc6 Rb7 Ne7 Rc3+ Ke2 Rb6 Qf3 Rd3 Qg4 Re3+
1k1b3b/1q1r1N2/2b2Q2/1B1n1N1K/Nq3Rn1/Q2rN3/nQrnnP2/R2N2B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 a5 g4 h5 d4 c5 g5 Kc7 g6 e5 g7 e3 Kf3 e2 Rh2 e1N+ Ke3 c4 Qa4 e4 Kf4 h3 Be2 h4 Ra3 e3 Bf1 c3 Ra1 c2 Nf3 e2 Ne5 Ra7 Qa3 a4 Nc4 Na6 d6+ Kb8 d5 Qe7 d7 Nc7 Kg4 Nf3 b6 e1Q d6 Nd5 b5 Bb7 d8N Qb4 d7 Nh6+ Kh5 Nd2 g8N Ng4+ Nh6 Bc6 b7 Qg7 Nf7 Be7 Rg2 h2 Nc3 h1N Nd1 h3 Nce3 Rc8 d8Q h2 Nhf5 Bg5 Bb2 c1N Qf6 Na2 Be5+ Rc7 Rg3 Bh4 Rf3 Qh7+ Qh6 Bd8 Rf4 Qg7 Qf6 Ng3+ Kh4 Ne2 Kh5 h1R+ Qh4 Rg1 Qf6 Ra6 Bd6 Rg3 Be5 Ka7 b8N Rd7 b6+ Ka8 b7+ Ka7 Nc4 Rd3 Nce3 Ra5 Na6 Rc5 Bc7 Rcc3 Nc5 Rc2 Qab2 a3 Na4 Nac3 Bd6 a2 Qa3 Qh7+ N5h6 Qhe4 Nhf5 Qf3 Re4 Qh1+ Bh2 Qg2 Bg1 Kb8 Rf4 Qge4 Rb1 a1B Rc1 Bb2 Ra1 Na2 Qh4 Bh8 Qf6 Ka7 b8Q+ Ka6 Qb5+ Ka7 Qb6+ Ka8 Qbd4 Kb8 Qdb2 Qb7 Bg2 Qeb4 Be4 Rb3 Bd3 Rbc3 Ba6 Rd3 Bb5
2br1N2/3R1krB/1B1Q3r/1KB1bNb1/2Rb2n1/P1Q5/bBQ3qn/nq2B3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 h5 Kd3 Ra7 Kc4 c5 f4 e5 d4 b3 g4 b2 a3 h3 f6 h2 g5 h4 g6 e4 d6 h3 g7 e3 f5 e2 d5 e1B Nc3 b1B Nf3 Nh6 g8Q Bf2 Nd4 Na6 Ne6 Nb4 Qg7 Nc2 Bd3 b6 Re1 h1N Re4 h2 Rd4 Ng3 f7+ Kd7 f6 h1R Rh4 Nf1 Bh7 Rc7 Ra2 Na1 Rd2 Ba2+ Qb3 Be7 f8B Ke8 Re4 Ng4 f7+ Kd7 Rdd4 Bg5 Bd2 Ra7 Be1 Rh6 Be7 Bfe3 f8B Ke8 Bf6 Nfh2 Rd3 Rg8 Qc7 Rg7 d7+ Kf7 d6 Rb7 Nd5 b5+ Kc3 c4 Kb4 Qe7 d8Q c3 Ka5 b4 d7 Ra7+ Kb5 c2 Qc5 c1B Qcc2 Bc5 Rc4 Bcf4 Qb6 Bb8 d8B Qb7 Qbb2 Bf2 Bc5 b3 Ne7 Qg2 Nf8 Rd7 Qc6 Bbg3 Bdb6 Rd8 Rd7 B3f4 Qe5 b2 Qcd6 b1Q+ Qeb2 B2e3 Qbb3 Bg1 Bb2 Be5 Qbc3 Bgd4 Nf5+
2kn2B1/K3Q3/5b1B/Q1rRBRN1/bqb1qP2/1B4n1/1q1rQ2q/q1nN1B2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 d5 c4 Kd7 b4 h5 g4 e5 f4 e4+ Kd2 d3 Kc3 e3 Kd4 e2 c5 e1N b6 h3 g5 h2 g6 h4 b7 h3 f6 d2 b5 a4 f7 a3 b6 a2 g7 Nf6 g8B Qe7 Qf3 d1B Bb2 Ra5 Qd3 Nh5 Qa3 Nd3 Nc3 Nc1 Nf3 Ba4 Ng5 Ng3 c6+ Kd8 Rg1 h1Q Nd1 h2 c7+ Kd7 Qf3 Rc5 Qe2 Rh5 Rb1 a1Q Rg2 Bh6 f8Q Bg7+ Qf6 Rh6 Bc3 Rh3 Rb5 Qb2 Qfe5 Bf6 Ra5 Na6 b8Q Nb4 Qa7 Ba6 b7 Bc4 b8B Kc8 Rb5 Rh7 Qa5 Qd6 Rf2 Rd7 Rf3 Qg2 Rd3 h1Q Rd2 Qb6 Rd3 Qgh2 Rd2 Rd6 Rd3 Kd7 c8B+ Kd8 Bce6 Nc6+ Ke3 Rd7 Qe4 Q1g2 Bbe5 Kc8 Bef7 Nd8 Kd4 Be7 Bg7 Bf6+ Qe5 Qb4 Bh6 Qe6 Ke3 Qb6 Qe7 Qe6+ Be5 Qf5 Qf3 Qgb2 Qe2 d4+ Kf3 Ba2 Bb3 Qe6 Rd2 d3 Ke3 Rdd5 Bc2 Bc4 Bb3 Rc7 Rc5 Rd6 Rd5 Rc5 Rc2 d2 Rc3 Rdc6 Kd4 Rd6 Nf2 Qf5 Nge4 Nd3 Ng5 Rd7 Rd6 Rc6 Qg4 d1Q Qe2 Bh8 Beg7 Qda1 Nd1 Nc1 Bf6 Qfb1 Bfg7 Ba6+ Kd5 Rcc7 Rc5 Qg6 Rb5 Rc2 Bc3 Rc7 Rf6 Qh7 Be5 Qf5 Rc5 Qfe4+ Kd6 Bc4 Rf5 Qe1 Rb5 Bf6 Rd5 Qec3 Qb5 Rd2 Qa5 Rd7+ Kc5 Rc7+ Kb6 Rc5 Ka7 Qb4 Bc7 Qeh1 Bd6 Qe4 Be5
6RN/1Qqb4/n1rQ1rR1/1n1N2PK/qr1r3N/2nB3b/3b3N/1NR1k1Br b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 d4 h5 b4 a5 g4 f5 e4 c5 b6 c4 g5 c3 b5 a4 b7 c2 b6 a3 Ne2 a2 Ng1 h3 Bd2 c1R Be2 h2 Bc4 h4 Bd3 h3 Qb3 Rc6 Be3 Na6 b8N Nf6 b7 Ne8 Nd7 Qc7 b8R Rh4 Ne5 Bd7 Qb7 Rg4 Rd8 Rb8 Ng6 Bg7 Nh4 Bf6 Kf2 f3 Rc8 Rf4 Kg3 f2 Ngf3 f1B Rd8 Bg2 Rc1 h1R Bg1 h2 Rc2 Bh3 Rc8 Qb6 Rd8 Nec7 Rg8 Nb5 Rg6 Qc7 e5+ Ke7 d6+ Ke6 Rg8 Kd5 e6 Re4 e7 f4+ Kf2 Rd8 e8N Bg7 Ne1 f3 Kg3 f2 Nef3 f1R Nf6+ Ke6 Nd5 Rb8 Nfd2 Rf6 Nf1 Rd8 Nb4 Bh8 d5+ Ke5 Rg6 Rb8 Rg8 Rd4 Rg6 Bdg4 d7 Be6 d8Q Bd7 d6 Bg7 Bc4 Ke4 Nd5 Bf8 Ng2 Bg7 Kh4 Kf3+ Kh5 Bf8 Bd3 Bg7 Na3 Bf8 Rd1 a1Q Nb1 Qa4 Rdd2 Bdf5 d7 Bb4 Re2 Bd2 Re8 Be6 Qe7 Bef5 d8N Bd7 Qc8 Rb7 Nf7 Rbb6 Nh8 Rb8 Be4+ Ke2 Nh4 Ke1 Qe6 Na3 Rd8 Rbb4 Qd6 Nb5 Bd3 Nc5 Nbc3 Na6 Be3 Rg1 Qb7 h1N Nb1 Nf2 Rdg8 Nd1 Nh2 Rh1 Bg1 Ndc3 Rc1+
1nB4k/Nnb3Qn/6qq/2P1q1rR/B1N4R/b1N1QB2/3KnB2/1bn1rB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 e4 d5 b4 a5 c4 h5 g4 f5 e5 Kf7 b6 Kg7 e6 d3 g6 f3 g5 h4 b5 h3 b7 h2 b6 d2+ Kf2 a4 Ke3 f4+ Kd3 f2 e7 f3 e8B a3 Be2 f1N Nc3 d4 Nb5 f2 Bf3 a2 Qe1 d1Q+ Qd2 Qe1 Ne2 Nf6 Bfc6 Rh5 Bd5 Ng3 Na7 f1N Nc3 Ne2 Bf3 Kh8 Ba4 Nfg3 Qe3 Ba3 c5 Nf5 Kc2 Qg1 Kd2 d3 Bb2 Qc7 g7+ Kg8 Re1 a1B Rf1 Kh7 g8B+ Kh8 g6 Nh7 Bc4 Nc1 Bcb5 Nd6 g7+ Kg8 Re1 Bf5 Bd7 Qg5 Bc8 Qg6 Reg1 Rg5 Rg4 Qe7 Rh4 Qe5 Rh5 Na6 b8Q Nb7 Qc7 Nb8 Na2 Be4 Bd4 B1b2 Nc3 Bf5 Rg1 h1Q Rg4 Qh3 Rgh4 Qhh2+ Kd1 d2 Qd7 Bb1 Qg4 Kf7 g8B+ Kg7 Bc4 Kh8 Bf1 Qf4 Qgg1 Qf8 Qg3 Qfh6 Qg4 Nd3 Ke2 d1N Kd2 Nc1 Qgg1 Bb4 Qg4 Ba5 Qd7 Ba3 Qf7 Nd6 b7 Bc7 Qe7 Nb2 Qd7 Nbd3 Qe7 Nf4 Qf7 Nd7 b8N Nfe2 Nbc6 Nb8 Na5 Nb7 Nc4 Nc6 Bch3 Re8 Bc8 Nb8 Qd3 Rd8 Bf2 Rd4 Qe7 Rdg4 Qe3 Rg1 B1g2 Re1 Bf1 Na6 Qf7 Nb8 Qg7+
1n1rb3/2BB4/bPqQR3/Kb4QB/5qb1/3Q4/n3BrNR/bqnNkB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 c4 d5 g4 h5 g6 a5 c5 f5 g5 a4 c6 f3 b6 Kf4 b7 Kg3 c7 Kf2 e5 f4 b5 a3 e6 d3 Kc3 d4+ Kc4 d2 e7 a2 Kb4 h4 g7 h3 b6 h2 g6 d3 Bg2 Nf6 g8Q Nd5+ Kb5 Qe8+ Kc4 Nb4 g7 Qc6+ Kb3 Rh7 Qc2 Ke1 e8B d1B Ba3 f2 Bg6 f1Q Nh3 f3 Nf4 f2 Bh5 d2 Nc3 Rh8 Bc1 Bdg4 Qd3 d1N Bh3 Nb2 Nd1 Bc5 Qgd5 Rd8 g8B Bd4 Qg5 Rf8 Rb1 a1Q Bc4 Na2 Bg2 Bcd7 c8B Be8 Bd7 Be5 Be3 Rf5 Rc1 Qb1 Bd4 Bh8 Be5 Rf8 Bc7 Rf7 Rg1 h1B Rc2 Bg7 Bh3 Bhf3 Rg3 Be2 Re3 Bd4 Re6 Be5 Qg3 Nd3+ Rb2 Rf8 Ba6 Bd4 Ka3 Ndc1 Qd3 Rf6 Rc2 Ba1 Rd2 Qd6+ Ka4 Qh1 Rb2 Qhc6+ Ka5 Rf7 Bf1 Qe5+ Qd5 Bb5 Be2 f1B Qd3 Bg2 Bf1 Bd5 Rh2 Bdc4 Nh3 Rf3 Nf4 Rf2 Qb3 Ba4+ Nd5 Qc5+ Bb5 Nd7 N5e3 Qf4 Qa3 Qcd6 Bc6 Rd8 Ng2+ Kd2 Bab5 Bd3 Bf3 Be2 Bbc6 Ba6 B3e2 B4b5 Qg3 Ne5 Bd7 Qd5 Nh4 Ke1 Qd3 Qdf3 b8Q Qd5 Qb7 Qde4 Qc6 Qc4 Bc8 Nd7 Qcd6 Nb8 Bd7 Qc6 Ng2+
Rn4nR/B2BnQKR/PR2N3/2QN4/1q2k1nQ/n1R5/1bbq2rq/1r1r4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 c5 Kg5 Ke5 a4 h5 Kg6 b5 f4+ Kd4 g4 e5 g5 h3 f6 c4 f5 b3 f7 b2 f6 h2 d6 h4 a5 b4 d7 h3 a6 b3 Qf3 c3 Bb5 e4 Ra3 c2 Nc3 b1N Nd5 b2 Rc3 Qc7 d8R e3 Rd6 e2 Rb6 e1Q Bd7 Bg7 f8Q Na3 f7 b1R Qc5+ Ke5 Qh5 Ke4 f8R Rh7 Bb2 c1Q d4 Qcd2 Nf3 Rh6+ Kf7 Rd6 g6 Bh8 g7 Qh4 Rg1 h1N Rg3 h2 Rh3 Qg4 Qh4 Ng3 Rd8 h1N Re8+ Ne7 g8Q Nf2 Kf8 Nf5 Qf7 Nh6 Bc1 Qd1 Be3 Ng8 Rh1 Bf6 Rd8 Qd2 Rh2 Bg5 Kg7 Qf4 Rh3 Ng4 Bg1 Qb7 Rh1 Qfh2 Be3 Nh6 Rh8 Bf6+ Kf8 Qc6 Nf4 Bb7 d5 Nf2 Qb5 Qe1 Nd4 Qh3 Bc8 Qc4 Rc2 Nbc6 Qg4 Qc1 Nde6 Bb2 Rc3 Ke5 Qg3 Rd7 d6+ Qc5 Qc4 Qb4 Rh2 Qd1 Rb5+ Qd5 Ba7 Qh5 Rg2 Qh2 Qh4 Rb8 Rg7 Ba8 Qc5 Rb6 Rgh7 Nhg8 Kg7 Rd8 d7 Bb7 Ra5 Rb5 Bb6 Nb8 Qc6 Qdd6 Qc4 Be4 Be3 Rd5 Rb5 Ng4 Bb6 Bc2 Qc5 Ke4 Ba7 Rdd1 Rb6 Nbc6 Qff6 Rf8 d8R Qdd2 Qg6+ Rf5 Qf7 Rf6 Nd5 Rf2 Bd7 Rg2 Ra8 Nb8 Rh6 Qc4 Rh5 Qb4 R5h7
1N3KnB/n1r3RN/BkP2Bb1/2Bb2Q1/rBq2bn1/1n4nQ/1n6/Q3R2n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 d5 c4 Kd7 b4 Kc7 f4 h5 g4 e5 b6+ Kc6 g5 a4 c5 a3 f6 a2 b7 h3 g6 h2 f5 h4 g7 h3 b5+ Kc7 f7 Rh7 b6+ Kc6 f6 Ra5 Nd2 Ra4 Nb3 Be6 Nf3 Bd6 f8B Qc8 Rg1 h1N f7 h2 Bb2 Ng3 Ng5 h1N Na5+ Kb5 Be7 Nc6 b8B Na7 f8B Qa6 Rb1 a1N b7 Nb3 Nc6 Bc7 Bf6 e4+ Kc2+ d3+ Kc3 Bf4 Bbd6 e3 Nb8 e2 c6 e1N Bb4 Bf7 Bfc5 Nc2 Qf3 Bg6 Re1 Ne3 Rg2 Rh3 Nh7 Ng4 Qd1 Rh5 Qa1 Re5 Rg1 Re2 Rg2 d2 Rg1 d1B Rg2 Na5 Kd4 Bb3 Bc3 Bc4 Bb2 Re7 Bd3 N8h6 g8Q Rc7 Qd8 Ng8 Bh8 Bf5 Qg5 Be4 Nd7 Bg6 b8Q+ Qb7 Qc8 Qa6 Nb8 Nb3+ Kc3 Ne3 Qh3 Ng4 Be7 Kb6 Rgg1 Na5 Kd4 Qb5 B2a3 Ba2 Bef6 Nb3+ Kc3 Qa6 Bb5 d4+ Kc4 d3 Kd5 d2 Ke6 d1N Bc4 Qa5 Ba6 Nb2 Rg2 Qb5 Rgg1 Rc8 Kd7 Rc7+ Kd8 Rf7 Ke8 Rc7+ Kf8 Qd5 Re7 Qc4 Rge1 Bab1 Rg7 Bbe4 Bbe7 Bf3 Bab4 Bd5 Bec5+
N1q1kR1q/2rnbNB1/6BQ/Bn1b1q1B/K2QBr1N/5r2/1R4Pn/3n3b b - - 0 1 illegal: No possible last move, all moves rejected
2Q2nk1/N2q1N1b/qqR3b1/3PQNBB/nr1b4/4NNb1/rn4r1/1K2R1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 a5 g4 c5 e4 f5 d4 Kf7 Kd2 h5 Kc2 h3 b6 c4 g5 h2 d6 f3 e5 f4 d5 a4 d7 h4 b5 a3 b7 h3 b6 c3 Qd4 a2 Be3 f2 Qa4 f3 Qa5 Nf6 e6+ Kg8 e7 Rh4 e8Q Nh7 g6 Rb4 g7 Na6 b8N Nc5 b7 Na4 Qa6 Qb6 d8B Bf5+ Bd3 f1Q Qh5 f2 Nf3 Bd6 Bdg5 Nf8 Nd7 Bg6 b8N Bg3 Nc6 Ra7 Bf5 Qfb5 Rc1 h1B Nde5 f1Q Nf7 h2 Bg1 Ra8 Na7 Qd7 Qb7 Qfa6 Na3 Bg2 Be4 h1R Nc4 Rh2 Qc8 Bh7 Rab1 a1B Ne3 Bg6 Re1 Bh7 Kc1 c2 Bg6 Bd4 Rb3 Bh3 Rc3 Rg2 Rc6 Bf5 Qh2 Be4 Bh5 Bef5 Bf4 Bfg6 Bg5 Bh4 Qe5 Bf2 Kd2 c1N Kd1 Nd3 Kc2 Nab2 Kb1 Bg3 Nd6 Nc5+ Ndf5 Kf7 g8N Nca4 Nf6 Qbd8 Ne4 Qdb6 Ned6+ Kg8 Nf7 Qab7 Rc3 Nc5 Nc6 Ra2 Rcc1 Q7a6 Na7 Nca4 Rc6
2N3BQ/BK1R1R2/B1rBr2n/P7/b3Rn1N/B1n3k1/3qb3/b1q1rqQb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Ke4 e5 d4 c5 g4 b5 f4 h5 a4 b3 a5 b4 g5 c4 g6 c3 g7 h3 f6 c2 f7 h2 f5 h4 f6 h3 Qe2 b2 Qd1 b3 Na3 b1N Bg5 c1Q Nf3 b2 Nh4 Nh6 g8B Bd7 Be3 Ba4 Ba6 Nc6 Re1 Bg7 f8B+ Ne7 f7 Rc8 Rf1 Rc6 Nb5+ Kd7 d6 Ke6 d7 h1Q+ Rf3 h2 Nd6 Qf1 Nc8 Nd5 Ba3 Nf4 f8B+ Kf6 d5 Kg5 d6 Kg4 Bf2 h1B Ba7 Bf6 Be7 Rh7 Bf8 Re7 Qd4 Re6 Qg1+ Ng2 Kd5 e4 Ra2 e3 Be7 Bg7 Rf7 e2 Bf8 e1R Ra1 Qb6 d8R Qb4 d7 Kg3 Re8 Bd4 d8Q Qbd2 Bfc5 R6e2 Re4 Nc3+ Kc4 b1B Qf6 Qf2 Qh8 Qf1 Kb4 Be5 Bd6 Bd3 Rd7 Rf2 Ra2 Be2 Rb2 Rf6 Rb3 Rb6+ Kc5 Re6 Rf7 Rb5+ Kc6 Rc5+ Kb7 Rc6 Qb6 Nf4 Qg1+ Kh3 Rb5 Bg7 Rd5 Be5 Qd4 Kg3 Qg1+ Bg2 Qb6 Nd1 Qg1 Ba1 Be7 Nc3 Rd7 Qf2 Qf1 Bh1 Bed6 Qf3 Qg1+ Qg2 Qb6 Qf1 Qg1+
1q2rN1b/1R3N2/3RQ1nP/2K2Bkb/3rB2b/B2Q1q2/2Q1QQ2/1bnqr1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 h4 a5 d4 c5 b4 g5 e5+ Kf5 d6 f6 b6 c4 d7 a4 b5 c3 e6 a3 e7 c2 e8B f3 Ke3 g3 d5 g4 Kd4 f2 b7 g2 d6 a2 h5 g3 h6 Rh7 b6 Be7 Nd2 Nc6+ Kc5 Kg5 b8Q f5 b7 f4 Bg6 f3 Bfd3 f1Q Qe2 f2 Bgf5 Nd4 Qc7 Nf3 Rb1 a1B b8Q Bh8 Ba3 c1N Qb2 Ba6 Bc2 Qb8 d8Q Bd3 Qe8 Ra4 Qa2 Rd4 Rb7 Bef6 d7 Ne7 d8Q Ng6 Nb3 Re7 Qf7 Re8 Qfe6 Qd1 Bb1 f1B Qf2 Bfe2 Nh3+ Kh5 Qh7 Bh4 Ng5 g1R Nf7 g2 Qc2 Re1 Qde7 g1Q Be4 Rd7 Nd4 Qg4 Bf5 Ng1 Rh3 Bc4 Rd3 Ba2 Rd2 Bf3 Qee2 Rdd8 Ne6 Rd4 Nf8 Qe4 Qcd3 Bg4 Bc2 Bb1 Qe6 Qh1 Qh3 Qf3 Bce4 Qff4 Qhd3 Qf3 Nd8 Kg5 Qc2 Rb4 Rd6 Bh5 Qhd7 Ra4 Qdb5 Rb4 Qbd3 Rd4 Nf7+
k1N2BrR/2bP4/KR2n2q/1B2b3/1R2r3/2nQ3r/RN1q3Q/BnRbqr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 c5 Kd3 Kc7 Kc4 Kb7 e4 h5 g4 a5 b4 f5 g5 a4 d6 h3 b6 h2 Kb5 a3 d7 h4 g6 h3 d5 f3 d6 c4 g7 a2 e5 f4 e6 c3 e7 f2 e8Q c2 Ne2 f3 Nbc3 Ne7 g8R Nbc6 Qh5 Ra4 Ba3 c1Q Nf4 Ka8 Ne4 Nd5 Nd3 Qh6 Nb2 Be7 Re8 Rg8 Qd3 Bh4 Be2 Bg3 Rhc1 h1Q Bf1 Qdg5 d8B h2 Bf6 Qd2 d7 Nd8 Qh4 Bc7 Nd6 Bb7 Nc8 Ne6 Be2 f1N Qh5 Rg1 Rh8 f2 Qh4 Qe4 Qf4 h1R Qh2 Rg8 Bg7 Kb8 Bd4 Ba8 b7 Qee3 Bc3 Qe1 Bg7 Nd2 Bf6 f1R Bg7 Qef4 Bf8 Ba5 Ka6 Nb1 b5 Ndc3 Bae7 Re4 Bf6 Bc7 Be5 Qfd2 Bd4 Bd6 Bdg7 Kc7 b8R Bd5 Bd4 Bb3 b6+ Kc6 b7 Bc7 Ra8 Bd1 b8R Rf2 Rb4 Rff1 Qg2 Rh3 Qh2 Na3 Rab1 a1B Nc4 Bb2 Bdg7 Ba1 R1b2 Nab1 Ra2 Nb5 Rb8 Bae5 Rb7 N5c3 R7b5 Bb6 Nb2 Kc7 Bf6 Kb8 B6g7 Ka8 Bf6 Ba5 Rb6 Reh4 Qg6 Rhf4 Bb5 Rd4 Qd3 Re4 Rd6 Bd8 Rb6 Bdc7 Qdg3 Nd5 Nd3 Bed6 Ba1 Be5 Nb2 Ndc3 Qd3
2q1Rn2/Pqb1n1k1/NB2n1q1/3Qb1B1/bN1r3B/3rR1QQ/1r1B3K/2r4B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kf7 g4 c5 f4 b5 Kf2 h5 Kg2 e5 d4 h3+ Kh2 c4 a5 h4 f6 e4 d6 b3 g5 c3 d7 b2 d5 b4 d6 b3 a6 e3 f5 e2 a7 e1B Ra3 c2 Bd2 c1N Nf3 Bg7 g6+ Kf8 f7 Ne2 Ne5 Nf4 Nd3 Ne6 Nb4 Ne7 Nc3 b1R Na6 b2 Na2 Be5+ Rg3 Rh5 N2b4 Kg7 Bg2 Qf8 d8Q Bd7 Qb3 Ba4 d7 Rc1 Qc7 b1Q d8B Nd7 Qc6 Bc7 Qcd5 Rb8 Qbd3 Bf2 Re1 Bd4 Bh1 Bde5 Q3f3 Qe8 Qg2 Ndf8 f6+ Kh8 g7+ Kh7 Rd1 Qg6 Re1 Rc3 Re3 Rd3 g8Q+ Kh6 Qf1 Rf5 Re2+ Rf4 Rge3 Qd7 Qfg2 Qc8 Re1 Rfd4+ Qg3 Bcd6 Bb6 Bc7 R1e2 Qh5 Qg4 Qg6 Kg1 h2+ Kg2 Nd7 f8B+ Kh7 Bg7 Ndf8 f7 Rb7 Bf6 Rb8 Bg5 Kg7 Kh3 Rb7 Be4 h1R+ Kg2 Rd1 Kh2 h3 Bh1 Rb8 Bc5 Rb5 Bb6 Rc1 Qgf3 Rbc5 Re1 R5c2 Qh5 Rb2 Qhf3 Nh7 f8B+ Kg8 Qf1 Bf4 Bh4 Nf5 Bfe7 Ra3 Qdb5 Nc5 Be4 Rad3 Rf3 Kg7 Kh1 h2 Beg5 Nf8 Qfh3 Bfd6 Kg2 Bf4 Bb7 Bfd6 Re6 Be5 Re8 Ne7 Re3 Nce6 Qf4 h1Q+ Kg3 Qf3+ Kh2 Qg4 Bh1 Qf3 Qfg3 Qfb7 Qd5
B2BrQqr/2n1n3/2rr1NRN/1b1r3R/3k4/B4BbQ/Pn3b1Q/1K2Br2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 d4 Kd6 Kd2 c5 Kc2 h5 f4 b5 g5 e5 f6 c4 g6 b3+ Kb2 e4 f5 b4 f7 h3 g7 e3 f6 h2 Bg2 h4 Qf3 e2 Na3 e1B Nb1 h3 Na3 c3+ Kb1 b2 Bd2 Bf2 Ne2 Na6 Ng3 Nc7 Nh5 Bd7 Be1 Bb5 Nc2 Ne7 g8B Rh6 Rg1 h1R Ne3 h2 Ng4 Bg7 Bh7 Qg8 f8B Re8 f7 Be5 Be4 Beg3 Nhf6 Rg6 Nh6 Rg5 Kc2 b1N Qe3 Rh5 Bgf3 Nd2 Rg2 Nc4 Kb1 b3 Qd3 Be5 Rg6 b2 Qf1 Rg1 Qh3 h1R Qh2 Beg3 Qh3 Na6 Qh2 Rf1 Qh3 Kc7 d6+ Kb6 d5 Kc5 d7 Nc7 d8Q Kd4 d6 Rd5 d7 Rd6 Ba8 Rd5 Kc2 b1R Qb8 Nb2 d8B Rd1 Rb1 Rd3 Kc1 c2 Ra1 Nc6 Ba3 Ne7 f8Q Rh2 Qg2 Rhh5 Qh2 Rd6 Qc8 Rhd5 Qch3 Re3 Kd2 c1R Rb1 Rcc6 Ra1 Rb6 Kc2 Rb8 Rc1 Rc3+ Kb1 Rcc6 Rc5 Rh5 Nf7 Rh8 Rh5 Rbb6 Rhg5 Rd5 Nh6 Rcd6 Re5 Rbc6 Rh5
1K3N2/2nr1n1n/rn4bR/2k1R3/1N3b1q/1B3N1P/QRnBbrQR/1n4R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 a5 b4 c5 h3 g5 b6 f5 b7 c4 b5 f3 Kg3 f4+ Kh2 c3 b6 a4 Qd3 c2 Ne2 g3+ Kg1 a3 Qb3 a2 Nd2 g4 Nc3 g2 Kf2 g1R Bc4 Bh6 Rh2 Na6 b8Q+ Nc7 b7 Ra6 Qa8 Nf6 b8R Rd1 Qb2 Bf5 e5+ Kd7 d6 Nh7 d5 Rf8 Rb1 a1N Qa2 Qf6 R8b2 Bg6 Bb3 Rf7 Nc4 Rd4 Be3 c1N Nd2 Nc2 Ra1 Ne2 Rc1 Qe7 Qb7 Rf6 e6+ Kd8 d7 g3+ Kf1 f2 Kg2 f1B+ Kf3 Rf5 Rd1 Rd3 Ke4 f3 Re1 Qh4+ Bf4 Ke7 d8N Kf6 e7 f2 e8R g2 Ne6 g1N Nf8 Nf3 Re7 Ne5 d6 Nf7 d7 Bh5 d8R Rdd6 Rb8 Rd7 Re5 Bg5 Rc5 Ke7 Re5+ Kd6 Nd5 Kc5 Rbe8 Rff6 R8e6 Rf5 Rh6 Bg6 Kf3 Nc3 Nb4+ N3d5 Ke4 Be2 Rg1 f1N Qa8 Kd6 Qb7 Nb6 Qa8 Na3 Kd4 Nb1 Qg2 Ne3 Ke4 Ng4 Be3 Rf2+ Kd4 Nc3 Nf3 Nb1 Bd2 Bf4 Rf5 Ke7+ Kc5 Ne3 Kc6 Nc2 Kb7 Kd6 Rfh5 Nh8 Re5 Nf7 Re6+ Kc5 Kb8 Nca3 Re3 Nc2 Re5+
1K1R1N2/1P4N1/2qn2nr/1bnbb2N/b1kbB1QQ/4B1B1/1r3r2/1Bb2RB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 d4+ Kb4 g4 h5 e4 a5 b6 c5 g5 f3 d6 f4 g6 c4 d7 c3 d5 c2 g7 h3 d6 f2 Nc3 a4 Nf3 a3 Nd5+ Kc5 Ng5 f3 Nh7 h4 Bd3 f1B Nf4 h2 Nh5 Qc7 d8Q f2 Qg4 h3 Qdh4 Be2 Rd1 Ne7 g8B h1B Bd5 f1R b3 Rf2 Be3+ Kb4 Rab1 Qc4 d7 a2 Kd6 a1B e5 h2 e6 Bfg7 Nf8 Ng6 e7 Ra2 e8N Rh6 Bf5 Kb5 b4 Na6 Bg2 Bgf6 Neg7 Qe4 Rbc1 Nc5 Kc7 Bab2 Rd5 Bbd4 Rf1 c1B Bf3 Qe6 Bb1 Rb2 Bg2 Bd1 Rd6 Kc4 b5 Ba6 Bf3 Bg5 b7 Ba4 b8B Bf6 b6 B6b5 b7 Qd5 Kc8 Qc6+ Bc7 Bg2 Kb8 h1N Rd5 Ng3 Be5 Nf5 Bg3 Rfd2 Bg1 Rf2 d8B Bh1 Bdc7 Bg2 Bcf4 Bfe5+ Rd6 Bh1 Be3 Bg2 Ka8 Bh1 Rd8 Nd6 Kb8 Bg2 Bd1 Bf3 Bdc2 Bd5 Be4
2Br4/Q4Bn1/1N2bbr1/2QQnQ1k/2qr1nR1/Q2n2nP/2R3bK/r3BN2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 Kg2 c5 e4 f5 d4 Kf7 b4 Kg6 h3 g3 b6 a4 e5 c4 d6 c3 b5 a3 d7 c2 e6 a2 b7 Qc7 d8Q Qc4 b6 Nc6 b8Q Be7 d5 Bf6 d6 Nh6 b7 Ra4 d7 Ne5 Qe1 Kh5 e7 g5 Qe4 g4 Qa5 Rd8 Bd2 c1N Qd6 Ncd3 Ne2 f3+ Kg1 f4 b8Q g2 Na3 f2+ Kh2 g1N Qba7 f3 Q5c5 Rb4 Be1 Nf5 Rc1 a1R Rc2 Ng7 Bg2 f1B e8B+ Kh6 Bh5 f2 Ng3 Ne2 Bf7 Nef4 Rg1 Ra4 Bf3 Bg2 Nf1 Rb4 Qf5 Ra4 Bb7 Rb4 Qe4 Ra4 Be6 Kh5 Bf7+ Ng6 Qed5 Qb3 Rd2 Bh1 Qc2 Rh8 Qe4 Rd4 d8Q Be6 Bc8 Re8 Q8d7 Rd8 Ne3 Bf3 Rg2 Qa2 Nac4 f1N+ Kg1 g3 Nb6 Qd5 Qda3 Qa2 Qcc5 Qc4 Rh2 g2 Rc2 Kg5 Qdd5 Ngf4 Bg8 Kh5 Rh1 Nd2 Kh2 g1R Bf7+ Rg6 Rg1 Bh1 Rg4 Bg2 Qf3 Ne4 Nf1 Ng3 Qe3 Qa2 Qee4 Qc4 Qf5+
BB2K3/r3B3/NnnQB1Q1/4bbn1/Q7/r2bNnP1/1rRBrq1R/1k3r2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 a5 b4 h5 d6 c5 g3 f5 d7 h3 Ke6 a4 Kf7 a3 b6 h2 b5 h4 d5 a2 b7 h3 d6 f3 b6 f2 Nc3 f4 Qd3+ Kb3 e4 c4 e5 f3 e6 Nf6 e7 Ra3 e8B Nc6 b8B Nd5 b7 Qb6 d8B Bg7 d7 Be5 Ne4+ c3 Qa6 Kc2 Bc4 f1B Nd2 f2 Bf6 Bd3 d8Q f1N Qa5 Qf2 Qd6 Nb6 Ne2 Bcf5 Ne4 Nd2 Be7 Nf3 Be6 Rg8 B8d7 Re8 Bd2 Kb2 Rae1 a1R Nf4 c2 Re2 c1R Nd5 Rf1 Qa4 Kb1 Ne3 R1a2 Nc5 Rb2 Bc7 Ra8 b8Q Ra7 Qg8 Re1 Qg6 Rf1 Rg1 h1R Na6 h2 Bb8 Re1 Rg2 Rhf1 Ke8 h1N Qc7 Qg1 Bc8 Nf2 Bb7 Nh3 Qd6 Nhg5 Rh2 Qg2 Rf2 Re2 Ba8 Qg1 Rh4 Qg2 Rc4 Qg1 Rh2 Qf2 Rc2
N1QN3r/1rN1NQbR/N1br3b/K4b1Q/2rnB3/1bk2P2/R1q5/Bn5n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 Kd2 Kf6 Kc3 c5 g4 a5 b4 h5 d6 e5 b6 a4 d7 a3 d5 e3 b7 e2 b5 e1N d6 h3 b6 c4 Kb4 e4 g5+ Ke5 g6 h2 g7 h4 Bh6 c3 Bg5 e3 Ne2 h3 Rg1 h1B Bg2 c2 Qd2 c1R Ra2 h2 Qd1 Nh6 g8Q Ra6 Ng3 e2 Nd2 Kd4 Be4 Nf3 Nc4+ Nd2 Rb2 e1R Qh5 a2 Qgf7 Qc7 d8Q Bf5 Qc8 a1B Be7 Bf3 d7 h1B d8N Nb1 Bd6 Bhg2 Rh1 Nc6+ Kb5 Bd1 b8N Kc3 b7 Bc2 Nb6 Bb3 Na8 Ng4 Ba3 Ra7 Na6 Bh6 b8N Red1 Bf8 Rd6 Bg7+ Nce5 Rh3 Qc4+ Ka5 Rb7 N6c7 Bh1 Bf8 Nf3 Bg7+ Nd4 Nba6 Qe2 Be5 Qc2 Bf6 Bfe6 Nf5+ Bf3 Ne7 Bf5 Bd3 Bc6 f3 Nf2 Be4 Nh1 Rg3 Rg1 Rg7 Rg4 Rh7 Bg7 Ra2 Bb2 Be5 Bc1 Rb2 Bch6 Ng6 Kd2 Ne7 Nb5 Bd5 Be8 Ra2 Rc4 Be4 Bc6 Ba1 Nd4 Rb2 Kc3 Ra2+
Bb3KR1/b1nb1Q2/3Nbqr1/nNBNr2r/3Nn3/3P2n1/k2b4/1Q1R1QN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 b4 c5 g5 h5 b6 a5 b5 a4 b7 a3 d6 a2 b6 f3 g6 f2 d7 f4 Ke6 f3 Kf7 h3 g7 h2 Bh3 f1N e4 f2 e5 h4 e6 Rh5 e7 Na6 b8Q Re5 e8Q Ng3 b7 f1B Bg4 h3 Qa7 Ne4 b8N Ne7 g8N Nc7 Qe2+ Kb3 d3 c4 Bh6 c3 Qd2 c2 Qd1 Nc6 Ne7 Na5 Nd5 Bd6 Qf2 Ra6 Bf8 Qf6+ Kg8 Kb2 d8N Be6+ Nf7 Bg2 Be2 c1B Qff1 Bd2 Nbc3 Ka3 Rc1 a1B Nb5+ Ka2 Nc6 Bd4 Bf3 Ba7 Ncd4 Rc6 Be7 Bd7 Kf8 Rb6 Be2 Bf3 Rc4 Bfg4 Bf3 Bge6 Qde1 Rc6 Rc1 Rb6 Rd1 Ra6 Nge2 Rc6 Rg1 h1N Rg8 h2 Ng1 Nhg3 Bg2 h1R Bf3 B6b4 Bc5 Rhh5 Qe7 Bf4 Bh1 Bbd2 Bg2 Qh8 Nfd6 Qf6+ Qf7 Bh3 Nc4 Ng5 Ncd6 Re6 Rc1 Na8 Ne3 Qh8 Ndc4 Bfb8 Nba3 Re5 Nab5 Rg6 Ncd6+ Bhe6 Rb1 Nc7 Ba8 Qf6 Nd5 N5e4 Rc1 Bg5 Qb4 Be3 Rd1 Bd2 Qb1#
2QK1R2/1BR1n2b/1r1N1Qr1/3n1r1k/1N2R1Qr/1PB2b2/1rn5/2bRq1bR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 f5+ Ke5 Kf7 g4 Kg6 d4 h5 e4 h3 d6 f3 b3 f4 b6 a4 b7 c4 g5 h4 d5 a3 d7 c3 Ke6 c2 e5 h2 d6 h3 Be3 c1B Ba7 f2 Qg4 a2 Bg2 f1R Nc3 f3 Nge2 f2 Ne4 Nf6 Nd4 Rg8 Nc2 Nd5 Bd4 Nc6 b8Q Nce7 Bc3 Ra6 Nb4 Qa5 Qb6 Bb7 d8Q Ba8 Qb7 Rb6 Kd7 Rg7 Rb1 a1N e6 Nc2 Qbc8 Rg1 Ke8 f1R d7 Rf5 Nd6 Qa1 Bf3 Rg2 Rd1 h1R Be4 Kh7 g6+ Kh6 Bf3 Rg8 g7 h2 Be4 Bc6 Bf3 Bb5 Be4 Bd3 Bf3 Rh8 g8R Rhg1 Rg7 h1B Be4 Re2 Rf7 Bf3 Rg7 Nf4 Bb7 Nfd5 Rf7 Bg7+ Rf8 Rh7 Rf7 Bd4 Rg7 Ng6 Qf6 Rg3 d8R Bg1 e7 Rf2 Qe4 Kh5 Kd7 Rd2 e8R Nge7 Rf8 Rh6 Rde8 Rgg6 Kd8 Rh2 Be1 Qe5 Bc3 Rh4 Qd4 Qe1 Qe4 Rg2 Qe2 Rhg6 Ra1 Ng8 Rc7 Nge7 Qee6 Nce3 Rb1 Rb2 Ra1 Nc2 Qed7 Ng8 Re4 Nge7 Rb1 Re5 Qh3 Rf5 Qg4+ Kh6 Rf4 Bd4 Qg3 Qe2 Rg4 Bf4 Re1 Re5 Nc6 Kh5 Qh3 Rg8 Ba8 Bh7 Bb7 Rg6 Rh1 Qe1 Nb4 Rf5 Rd1 Bc1 Re4 Bg1 Qg4+
1NqQbN2/kRqqq3/1b2r3/1qP1R3/nN1QQ1K1/2B1q3/2B1N1N1/3br2n b - - 0 1 illegal: No possible last move
3rb3/n1qn1NP1/n4Rk1/N1qBQ1n1/n3Qb1B/1B4RB/b2r1R1B/n3K3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 e4 d5 b4 a5 c4 h5 g4 f5 e5 Kf7 b6 d3 e6+ Kg6 b5 h4 e7 d2+ Kf2 d4 e8R f3 b7 h3 c5 d3 c6 a4 b6 a3 c7 h2 Nh3 f4 Re7 a2 Re2 Bd6 Re5 Bd7 c8B Qc7 Bg2 Be8 Qe2 d1N+ Ke1 Nf6 Rf1 h1Q Nd2 Nfd7 Rf5 Na6 b8B Nc3 b7 Qg1 Qe4 Qgc5 Nb3 Nb5 Rf2 Na7 Na5 Rf8 Rb1 a1N Rb3 Rg8 Bb2 Rh8 Bf6 d2+ Kf1 d1N Ke1 Nc3 Bh1 Kh7 g6+ Kh6 g7 Kg6 g8B Na4 Ng5 Rh2 Nf7 Rg2 Ra2 Rd2 Bh4 Be5 g5 f2+ Kf1 Bd6 Rg3 Be5 Bf3 Bd6 Bd1 Be5 Bb3 Bd6 Kg2 f1B+ Kf3 Bc4 Rb2 Rd4 Kf2 f3 Ke1 Bf4 Rf2 Be6 Bd5 Rd2 Bb3 Qd8 Bd6 Qdc7 b8Q Bc4 Bc2 Ba2 Bb3 Qc3 Qb5 Qd4 Qbe5 Qdc5 Nh6 Rb8 Bgd5 Ra8 Nf7 Rb8 Bcb7 Rd8 Bc8 Q7c6 Q5d4 Qc7 Rf1 Ndb6 Rg2 Be3 Rf4+ Kh5 Bh3 Nd7 g6 Qb7 g7 Qbc7 Ng5 Kh6 Rf5 Kg6 Bh2 Bf4 Rg3 Ra8 Qee5 Rd8 Rfg1 f2+ Kf1 Rd3 R1g2 Rd1+ Ke2 f1N Qde4 Nd2 Rf2 Nf3 Nf7+ Ng5 Bg2 Rb8 Bh3 Rd2+ Ke1 Rd8 Rf6+
KRN2q2/BN1rB1r1/4N3/3Q2B1/b5r1/nnbB2r1/2bbqQP1/2b1kB1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 e3 a5 d6 f5+ Kd5 h5 b6 c5 e4 c4 b3 a4 e5 c3 e6 h3 b7 a3 d7 h2 e7 h4 e8B h3 Qd3 c2 Bf7 f3 Bg5 c1B Nc3 f4 Be8 f2 Nf3 a2 Qh7 Nh6 Nd2 f3 Bb5 f1B Nc4 f2 Bf7 Ra4 Ba6 Nc6 b8B Nf5 Rb1 a1B Nb6 Nd6 Nb5 Bd3 Ba7 f1Q Qg8 Bc3 Nc7 Nc4 Ne6 Bc2 Bg6 N6a5 Bd3 Rh7 Qf7 Rg7 Qf2 Qe8 d8B Bd7 Nc8 Na3 Bac4 Bc5 Bde7 Qf8 Rb2 B3d2 Rb1 Kc3 b4 Bd6 b5 Be5 b6 Nb3 b7 Qe2 b8Q Rb4 Qc7 Ba4 Qd6 Rb7 Bb5 Rd7 Kc6 Bf6 d5 Be5 Rg1 h1R Kb6 h2 Rb2 Rd8 Kb7 Rd7+ Ka8 Bf6 Re1 Rf1 Bbc4 h1R Qdc5 Rh4 d6 Rh3 Qd5 Rg3 Ba6 Rh1 Bab5 Rh2 Rh1 Rh4 Ba6 Rhg4 Rb1 Nc5 Rb8 Nb3 Bab5 Be3 Bbc4 Kd2 Ba6 Bc3 Bac4 Rb7 d7 Rc7 d8N Rd7 Rh6 Kd1 Nb7 Bed2 Rh1+ Qe1 Bf1 Qe2 Qg1 Ke1 Bd3 Rb4 Qgc5 Rbg4 Qf2+
Nb1Nr3/r1rBB3/nb1RN3/1qq1bRn1/3Q1r1N/1P2b3/3N3Q/1K1Qkb2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Ke7 Kd2 Kf6 Kc2 Kf5 h4 Ke4 h5 f5 e3 c5 d6 a5 b3 g5 d5 a4 h6 a3 h7 g3 b6 g4 b7 f3 d7 c4 d6 f2 Qd2 c3 Bb2 f4 Bg2+ f3 Rh3 f1R Qf2 a2 Ba3 Qg5 d8N Nf6 d7 Na6 b8N Ra7 Bc1 Bd6 Rh6 Qc5 Ba3 Re8 h8Q Nh7 Bh3 g2 Nbc6 g3 Nd4 Ng5 N4e6 Bb8 Qe1 f2 Qd1 Bb7 Nf3 g1B Nh4 g2 Kc1 c2 Nd2+ Kd3 e4 Bd5 e5 Bc4 Rf6 Ke3 Rf5 Be2 Kb2 c1R Rb1 a1B+ Ka2 Qc7 Be7 Qc5 Rb2 Rc4 Kb1 Rf4 Bg4 Re1 Rc2 f1Q Rc3+ Kf2 Rd3 Bb2 Rd6 Bd4 Bh3 Bh2 Qh6 g1B Nc7 Qd5 Qf6 Nh7 e6 Qb7 Nf7 Rf3 Rf4 Qc6 Na8 Rc8 Bf8 Bb6 e7 Rcc7 e8Q Qc5 Qee5 Ng5 Be6 Bb5 Rf5 Qfc4 Qg7 Qa4 Qf4 Bf1 Qgd4+ Re3 Qfe5 Qab5 Qef4 Nh7 d8N Ng5 Bd7 Bg3 Nh8 B3h2 N8g6 Bg3 Qc3 Re8 Be7 B3h2 Nf8 Bg3 Qdc2 Ke1 Nfe6 Be3 Qcd4 Bh2 Qg3+ Rf2 Qh3 Be5 Qh2 Rf4 Qd1+
2Q4q/n1B2K1k/1B1r3b/r1PQ3Q/n1bQ4/qr1N2RB/1bbQ4/R2brN2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kg7 Ke4 d5+ Ke5 h5 f4 a5 g4 d3 c4 d4 b4 h3 g5 h4 g6 d2 b6 h2 b5 h3 b7 a4 c5 d3 b6 Be6 Qe2 d1R Nd2 Bc4 Ngf3 Nf6 Rg1 h1Q Ne1 Nd5 Ke6 Nc6 b8B h2 b7 Rh3 Ba7 Qf3 b8Q h1B Bb6 Ra5 Qc8 Na7 f6+ Kh6 g7 Kh7 f5 Nc3+ Ke5 Rg3 Bh3 e6 Nf1 d2 f7 a3 f6 a2 Qd7 Na4 Qg2 Qa3 g8Q+ Kh6 Qe2 Rb3 Rg3 Be4 Bb2 Bg7 f8Q Bc2 Qff7 Qa8 Kd6 e5 Ke7 e4 Be5 e3 Bec7 Qb8 Qgd8 Kh7 Qfh5+ Bh6 f7 Qa8 Qeg4 e2 f8Q Qc8 Qde6 Qb8 Kf7 Qc8 Nf3 e1R Ne5 Qb8 Qd7 Qa8 Qfd6 Qd8 Qc8 Qh8 Rb1 a1B Qdd7 Bb2 Ra1 Re4 Qe2 Re1 Qd4 d1B Nd3 Rg4 Qef2 Rg6 Qed5 Rd6 Qd2
bqn3Nb/B2K4/N2NQNQ1/qP1B1nR1/3r2r1/2k4n/b4RQ1/2n2bnN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 h3 b6 h2 b7 c4 g6 f3 d6 h4 d7 f2 Ke6 c3 d5 c2 e5 h3 d6 f4 g7 f3 Bb5 f1N Ne2 f2 Ra2 a4 Ng3 a3 Rg1 h1B Qe2 h2 Bc6 Ne3 Bd5 f1B Qg2 Rh4 Nd2 Rg4 Nde4 Nc6 b8N Nf5 Nf6 Kc3 b4 Ra4 b5 Rad4 Na6 Nge7 g8N Bg7 Be3 c1N Re2 Bb7 Rf2 Qb8 d8Q a2 d7 a1Q Qe8 Bh8 d8Q Nc8 Qdd7 Qa5 Qg6 Ba8 Qd6 Bg7 Kd7 Bh8 e6 Ne5+ Ke8 Nf3 e7 Ne5 Qe6 Nf3 Be4 Bd5 Kd7 Bb3+ Bd5 Ba2 Qh3 Bhg2 e8N h1N Nd6 Nh6 Rd2 Nf2 Nh1 Nf5 Qg3 Nh3 Rf2 Bd3 Qh2 Bgf1 Rgg2 Be4 Rg3 Nfg1 Qg2 Rf4 Rg5 Rg4 Bc4 Ba8 Bd5 Rde4 Bb6 Rd4 Ba7
2bRQ1qb/1rR3N1/1kn2K1P/1Q2Q3/1nn1BB1Q/3r1qQ1/4n3/q2R1Nnq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 Kc7 h4 a5 d6+ Kb6 e5 g5 h5 c4 d7 a4 h6 g3+ Kf3 g2 d5 a3 e6 a2 e7 c3 e8Q c2 d6 Rh7 Qd3 Nf6 Nh3 g1Q Bg2 Ra3 Nd2 Bg7 Nf1 Nd5 Bd2 Qh2 Rd1 a1Q Qe5 Qh8 d8R c1N d7 Ne2 Rc1 Qf8 Rc7 Qg8 Qdc3 Nc6 Qe8 Ra7 Qce5 Rb7 Rg1 Qh1 Bc1 Ka7 b6+ Ka6 Be3 Bh8 b5+ Ka5 Bc1 Ndb4 Bd2 Rf7 Bc1 Rf6 Be3 Rd6 Bd2 Ra7 b7 Kb6 b8Q+ Rb7 Bc1 Rd3+ Be3+ Ka5 b6+ Ka6 Kf2 f3 Bf4 g4 Ng5 Qa4 Ne6 Qa1 Bd2 f4 Ng7 Ra7 b7 Kb6 Bc1 g3+ Ke1 Re3 Kd2 f2 Bd5 f3 Be4 g2 Qg3 Nd5 Kc2 Rea3 Bf4 Ndb4+ Kd2 Rb3 Qe5 Rba3 Qa8 Rc3 b8Q+ Rb7 Qa4 Rc5 Ke3 Rd5 Bd3 Rd6 Ke4 Rd5 Kf5 Rd4 Nd2 f1Q Kf6 f2 Be4 Rd3 Qh4 Qfd1 Qa3 Qdb3 Rd1 f1N Qa4 Ne3 Nf1 g1N Qa3 Qbd5 Qac3 Kb5 Qce1 Nc4 Qeg3 Rb6 Qb7 Kc5 Qa6 Rb7 Qa4 Kb6 Qb5+ Ka7 Re8 Qc5 d8Q Qf2 Qd7 Qfg2 Rd8 Qf3 Qbd5 Ka6 Qe8 Kb6 Qb5+
1K2B3/1P2Bnn1/1rb1b1q1/1kNQ1b2/1R3r2/1B1Q1NQ1/2Qb2Rb/n1Q1q2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Kd6 e7 c3 e8B a3 b6 a2 b5 c2 g6 h4 b7 h2 b6 h3 g7 Nc6 Nd2 Qf6 Bc4 Rh6 Nb3 Nd8 Nc5 Ne6 Ba3 c1B Bb3 Bd2 Rc1 a1N Rc4 Qg6 Qc2 Ra4 Bb4 Be7 Ba3 Bd8 b8Q+ Bc7 b7 Rb4 Qa8 Rh4 Qc1 Rb6 Qa4 Nh6 g8Q Nf7 Bb4 Rg4 Qa2 Bd7 Qac2 Ng7 Ba3 Bb8 Bb4 Kc7 d6+ Kc6 d5+ Kb5 Ba3 Bc6 d7 Bc7 d8Q Bd7 Kf2 f3 d6 f4 Qg5 Bc6 d7 Be4 Qd5 Bf5 Qh8 Bd6 Qh4 Be6 Qg3 Rh4 Kf1 f2 Ke2 f1B+ Kf3 Bd3 Bb4 Bdf5 d8Q+ Rc6 Qdd3 Be5 Q8d5 Bb8 Kf2 f3 Ba3 Rf4 Bb4 Bc3 Ke3 f2 Nf3 f1Q Rg1 h1B Rg2 h2 Ba3 Be4 Bb4 Bd2+ Kd4 Qe1 Ba3 Nd6 Ke5 B4f5+ Re2 Bg2 Bb4 h1N Ba3 Bgh3 Bb4 Be4 Rg2 Nf7+ Kd4 B4f5+ Q5e4 Bd6 Nd7 Bfg4 Qh2 Bd5 Bc5 Bc7 Be7 Rff6 Nc5 Bd7 Qd6 B5e6 Qed5 Rb6 Qf4 Nh6 Qg4 Bh2 Qg3 Qf1 Ke5 Bc6 Kd6 Nf7+ Kc7 Qe1 Kb8 Rf4 Q3e4 Bhg4 Qed3 Bgf5 Rb4+
B1r1R1q1/1PR1n1q1/3bb1q1/2n1NBq1/rB2Bn2/1k3Q2/1N2Q1q1/4KBRn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 e4 Ke7 b4 Kd6 g4 h5 c4 f5 g6 a5 g5 h4 b6 d3 b7 f3 g7 h3 g6 d2+ Kf2 f4 b5 Kc5 e5 Kb4 e6 d5 b6 h2 e7 a4 e8R a3 c5 a2 c6 d4 c7 d3 Re5 Qg5 Nc3 Ra4 Re7 Nd7 b8Q Nc5 Re1 Be6 c8B Bd6 Qb7 Ne7 Qe2 d1Q g8B d2 g7 Qb3 Bh7 d1Q g8B Qd3 Bd2 Qdg6 Rac1 a1Q Nd1+ Ka3 Bd7 Qag7 Nb2 Qbd5 Bc6 Kb3 Bb4 Qc4 Bf7 Rc8 Be4 Qcd5 Be8 Qc4 B8c6 Qcd5 Bg2 Qc4 Kf1 f2 Nf3 Qcd5 Rg1 h1N Bb5 Qc4 Ne5 Qd5 Bbd3 Qc4 Qd2 Qd5 Ke2 f1N Kd1 f3 Qe2 f2 Bf5 Nd7 Rc7 Nc5 Qa8 Qc4 Qaf3 Nfg3 Bf1 Nh5 Bde4+ Qe3 Ba8 Nf4 Qc6 Qeg3 b7 Q3g5 Be4 Q6h6 Bhf5 Qhg6 Bfg2 f1Q Qd5 Qf2 Bf1 Qfg2 Qdd3+ Qc3 Qef3 Qh8 Re3 Qhg8 Qde2 Qd3+ Ke1 Q6g7 Bc3 Qa6 Bb4+ Nfd3+ Kd1 Bd5 Bh7 Nc6 Nd7 Bf4 Beg6 Qb6 Re8 Ne7 Be4 Bc4 Bhf5 Qbg6 Ba3 Bd6 Ne5 Bd5 Bb4 Be6 Bc3 Nf4 Ke1 Ka3 Ba5+ Ka2 Bc3 Kb3 Bb4+
B1K2Nb1/1PnB3r/8/r1b4Q/BnNB1b2/1q1Rb1Q1/nnk2R1R/2qnB3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 h3 b6 h2 b7 c4 g6 f3 d6 h4 d7 f2 Ke6 c3 d5 c2 e5 h3 d6 f4 g7 f3 Bb5 f1N Ra3 f2 Bc4 a4 Qe2 Nc6 b8Q+ Qb6 Bd5 Rh7 Nf3 Ng3 Be3 f1Q Ng5 c1B Bd4 Be3 Qh5 Nf6 g8B Nge4 Ra2 a3 Nd2 Nc3 Nc4 Qc1 Rf2 a2 Bg2 Bb7 d8R a1B d7 Bc5 Bf7 Bb2 Be8 Nfd5 Bf3 Na2 Be4 Rf7 Nh7 Ra5 Nf8 Rh7 Bf3 Bc3 Bg2 Bcd2 Qc7 Kb5 b4 Ka4 b5 Kb3 Bf3 Bc8 Qd6 Qb8 b6 Kc2 Bg2 Ncb4 Qc7 Ndc3 Ba8 Nb5 Qd6 Qb7 Qc7 Qf3 b7 Bf4 Qb8 Qb3 Qd6 Rh8 Ke7 Nc7 e6 Be3 Rg1 h1N Rgg2 Rh6 Rh2 Rh7+ Rf7 Bb6 Qg3 Nf2 Kd6 Nfd3 e7 Nb2 Rf4 Nba6 Rff2 Bc5+ Kc6 Bb4 Kb6 Bd6+ Ka7 N6b4+ Kb8 Bc5 Bg6+ N2d3 e8B Bf4 Bgf7 Nb2 Bd5 Be3 Bc6 Bf4 Rhg2 h2 Ba4 h1N Rh2 Bh6 Bf7 Be3 Be6 Rb5 Re8 Bf4 d8B Ra5 Bh4 Be3 Bh3 Be6 Rd8 Bg8 Bhd7 Bf4 Kc8 Be3 Rf3 Bf4 Rd3 Nf2 Re8 Nfd1 Ree2 Kb1 Ref2 Bde3 Bc3 Nb5 Bhf6 Nc7 Bd2 Kc2 Bg7 Be6 Bd4 Bg8 Be1+
KQB1qB1q/b7/2r1b1RB/2Q2b2/1br3Nn/nB1n1BRQ/1N1k3P/1n5r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 b4+ Kc4 e3+ d3 b6 g5 h6 a5 c3 f5+ Ke5 d5 b7 d4 h7 a4 b5 a3 e4 g4 b6 f3 Bg5 f4 Qe2 f2 Nh3 a2 Qc2 g3 Qb2 f3 Bh6 g2 Qd2 g1B Qc2 Ra6 Bg2 f1N Nf2 d2 Ng4 f2 Bf3 d1N Qc1 Kd3 c4 Ne7 c5 Nc3 c6 Bd7 Kd6 Nd2 e5 f1B c7 Nbc6 b8B Qe8 c8B Be6 Kc7 Nc4 Kb7 Nb4 Na3 Nf5 Bd6 Nb1 Bc5 Rg8 h8Q Bh3 Kb8 Be7 b7 Rc6 Ka8 Nh4 b8Q Be3 Qg1 Kd2 Qh7 Bf5 e6 d3 Qh8 Bf8 e7 Rg5 Bd6 Ba7 Qc5 Be6 Rg1 Bf5 Ne3 Rg4 Rg3 Re4 Rg6 Be6 Rg3 Bhf5 Ng4+ Rf4 Nc2 Nca3 Nce3 Rc4 Nd1+ Kc2 Qh7 d2 Nb2 d1R Qh8 Rh1 Qh7 Qd7 e8B Nd3 Bf7 Qe8 Be7 Nd2 Re1 a1Q Reg1 Ndb1 Bd6 Bg7 Bf8 Bc3 Qg6 Bb4 Qh5 Ng6 Qh3 Nh4 Ne3+ Kd2 Ng4+ Rf4 Na4 Qh8 Nb2 Bd7 Bb3 Bde6 Ne3 Rd4 Rg6 Re4 R1g3 Rc4 Ng4+
3n1nNq/K2kQb1R/Q6b/rbRBq3/4rn2/QRNP3r/R1R1b2B/4n3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 e4 c5 g4 f5 b4 h5 e5 h3 b6 h4 d3 f3 Ke3 h2 g5 a4 b5 h3 g6 f2 d6 c4 Kd4 a3 Kc5 f4 b7 f3 b6 c3 e6 a2 g7 c2 e7 Kd7 e8R Nf6 g8R Rh4 Rg5 Nc6 b8R Ba6 b7 Re4 Bg2 f1Q Ne2 f2 Nd2 Bb5 Nc3 Qe1 Re6 Qc8 Kb6 f1B Rc5 Ra5 Bb2 c1N Qa4 Nh7 Qa3 Ne2 Ree5 Kd8 d7 Nf4 Rf5 Ke7 d8Q+ Ke6 Rc1 a1N Rc2 Bh6 Ra8 Be2 b8Q Qg3 Qb7 Nf8 Qa6 Qg7 Rh5 Qe5 Rb1 h1B Qh4 Nd8 Ka7+ Kd7 Qg5 Rea4 Bd5 h2 Nde4 Bg2 Bc1 h1R Rb3 Rh3 Be3 Rb4 Bg1 Bgf3 Rh4 Bh5 Bh2 Bf7 Nf6+ Ke7 Bg2 Re4 Ng8+ Kd7 Qg7 Bg5 Rh7 Bh6 Rcb2 Nc2 Ra2 Rea4 Bd5 Ne1 Rb8 Rb4 Rbb2 Re4 Rc2 Qc6 Rb6 Qcf6 Qg5 Qh8 Qh4 Bc6 Rb3 Bb5 Qe7+
B1br4/b1N3Bk/4rr1b/bq2R3/5R1q/N1rPnKRn/3qQQR1/4NR2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 b4 f5 e4 Kf7 g4 Kg6 e5 h5 g5 a5 e6 c4 e7 h3 e8R c3 b6 c2 d6 a4 b7 a3 d7 h2 b5 a2 b6 h4 Nh3 f3 Re3 f4 Bc4 Nf6 Bd3+ Ne4+ Ke1 f2+ Ke2 f1R Ba3 c1B Bb2 Nc6 b8N Bb4 b7 Rh6 Bf6 Ba5 Bg7 Kh7 Rg3 Ne5 Ng1 h3 Na6 Nc4 b8R Ne3 Na3 Re6 Rb5 Rf3 Rab1 a1B R1b4 Bd4 Re5 Ba7 Nc7 Rb8 Ba6 Nf2 Bb7 Qe8 d8Q Qb5+ Rc4 Ra8 Rg2 Rg3 Qf8 f3+ Ke1 Rb8 Rf4 Ra8 Ne2 Rb8 Rf1 h1Q Ba8 h2 Nd4 Nh3 Ndc2 Qg1 Qe2 h1Q Qc5 Qgh2 g6+ Kg8 Qd3 f2+ Ke2 Rf3 Ne1 Rg3 Rfg1 f1R Qdc4 Rff3 Rf1 Rf2+ Kd3 Rgf3 Ke4 Rg3 Qe2 Rff3 Rh4 Rff6 Rhf4 Rf3 Bh6 Kh8 g7+ Kh7 Rg3 Q1g2 g8R Qf2 Rg2 Qh4 Bg7 Nf5 Na6 Rc3 d3 Ne3 Nc7 Bd2 Rg3 Bc1 Qg4 Qd2 Qe2 Ba6 Kf3 Rd8 Qd4 Bc8 Rg2 Nf5 Qg1 Ne3 Qgf2 Ng4 Bf8 Qc2 Rff5 Bh6 Rf4 Ne3 R8g3 Qd2 Bg7
rnrQb3/q3Q3/k3r2b/1n2nqQ1/1B2NBqr/2P1Q2R/1KN1qR2/2Q2B2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Nc6 g4 d5 f4 Kd7 b4 Kc7 b6+ Kb7 f6 e5 f5 a5 f7 h5 b5 d3 Kc3 e4 f6 a4 g5 d4+ Kb2 h3 g6 d2 g7 h4 Ra2 h2 Qe1 d1Q Qg3 h3 Ra3 e3 Bd2 e2 Ka2 e1R Be3 d3 Rc3 d2 Na3 Nh6 g8Q Ng4 Nf3 Qd7 Bf4 Bh6 f8B Qf5 f7 Bd7 Ng5 Re6 Rf3 Qe2 Rf2 d1N Ne4 Nge5 Q8g5 Nc3+ Ka1 Rg8 Qe3 Rh8 Bc5 Rhc8 f8Q Be8 Qc1 Bf7 Kb2 Be8 Rg1 h1R Rg3 h2 Qfe7+ Kb8 b7 Qeg4 Bb4 Ka7 Rd3 Qe2 Bd6 Kb6 b8Q+ Ka5 b6 Qeg4 Bc5 Qe2 Nb1 a3+ Kb3 a2 b7 a1Q Qa7+ Kb5 Bb4 Qa5 Qd4 Qa7 Na3+ Ka6 Kb2 Nb5 Rc3 Rg1 Rd3 Rg4 Rh3 Rh4 Qde3 h1Q Bg2 Qee1 c3 Qhg1 Nc2 Qe2 Bf1 Qgg4 b8Q Rd8 Qbc7 Nb8 Qcd7 Rc8 Qdd8
rq1QbN2/BQ1qr1k1/n2rQ3/1R1rN2b/2Q4P/1b1q4/n2R1KBb/6QB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 e4 f5 h4 Kf7 b4 g5 e5 c5 d6 a4 d5 f3 d7 f4 b6 g3 e6+ Kg7 b5 f2+ Ke2 g4 b7 g2 e7 f3+ Ke3 c4 e8B g3 d6 a3 b6 a2 Qd2 c3 Ba6 f1B Qe2 c2 Rh3 f2 Bf7 Rh5 Bd5 Nf6 Qc4 Ne4 Nc3 Be2 Nf3 g1Q Nb5 g2 Rh2 Nc3 Ne5 Qf1 Nd4 g1Q Bh1 Qg4 Rb1 a1R Rb5 Na2 Rg2 Qe8 d8Q Be6 d7 Bd6 Qe7+ Bf7 Bb2 c1R d8Q Re1 Qee6 Rad1 Ba3 Qd7 Bc5 Be8 Rh2 Qf5 Qg5+ Qg6 Qg1 Rg5 Rg2 Qb1 Rh2 Bd3+ Kf3 Bc2 Rg2 Bb3 Rh2 Nc6 b8Q Ncb4 Bb7 Na6 Qd8 Rd2 Bc6 Bb8 b7 Qfd3+ Kf4 f1B Bcg2 Bc7 b8Q Be2 Ba7 B2h5 Qb7 Rg6 Qed5 Rd6 Qe6 Bf3 Kg3 Bfh5+ Ndf3 Qb2 Ng6 Re5 Nf8 Rde2 Qh3 Red5 Qf5 Re7 Qe6 Qbc3 Kf2 Qb4 Rc5 Qbb5 Ne5 Qb6 Qc6 Qb8 Rb5 Ba5 Qcc8 Bd2 Qb7 Bf4 Rh3 Bh2 Re3 Nc1 Re2 Na2 Rd2
kq2q3/n1BBN1B1/Nn5q/b3n1q1/1P1Q1rrR/3BK1N1/3Rb1B1/bbQ5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 h5 g4 a5 e4 c5 b3 Kc7 e5 Kb7 d6 f5 d7 h3 d5 c4 e6 h2 e7 f3 e8B h4 b6 f4 d6 a4 g5 a3 g6 h3 g7 a2 Bb2 c3 Qc2 Qg5 d8B Ne7 g8B Nd7 Bgf7 Ra4 Na3 Nc6 Ba6+ Ka8 Nb1 Na7 Qd3 c2 Qf1 c1N Nc3 Rg8 Qc4 Nd3+ Kf1 f2 Ke2 N3e5 Rd1 a1B Nd5 f1B+ Kf2 f3 Qc1 Be7 Rd2 Be2 Bd3 Rf4 Bc7 Bd8 Ke3 f2 b4 f1Q Ne7 Qe1 Bd5+ Bb7 Bg2 Be4 Nf3 Bg6 Nd4+ Be4 Ndf5 Rg7 Rg1 h1Q Ng3 h2 Rf1 Qg1+ Rf2 h1Q Bc3 Nf6 d7 Qgh2 Rf3 Qh8 Rf1 Q1h3 Rh1 Q3h6 Rh4 Qg8 Bb8 Bc7 d8Q Qgh8 Qd4 Nfd7 Bh5 Qc8 Bg4 Bd8 Bc7 Qb7 Bc4 Bb1 Bd3 Rg6 Nd5 Qb8 Bgf5 Nc5 Bd7 Na4 Ne7+ Nf3 Qd5+ Qb7 B7e5 Qf6 Nef5 Rgg4 Bb8 Qfg5 Bg7 Bc7 Qd4 Bd8 Bc2 Bd1+ Kd3 Qe8 Ne7 Ne5+ Ke3 Be2 Bd6 Bc7 Bce4 Kb8 Bd3 Qbc8 b7 Qcd8 Bc5 Ba5 Bb6 Qc8 Bd8 Nb6 Bf8 Nac6 Bc7+ Ka7 b8N Ka8 Na6 Qb8 Nd5 Na7 Bg7 Bd1 Ne7+ Bf3 Bh3 Be2 Bg2+
b3nqqb/r1Qn4/8/1Q1k1P1Q/Br1nb1nK/1R2R3/QB2NN2/1Rq1Qb2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 c5 f4 e5 Kf2 a5 b4 h5 b6 e3+ Kg2 h3+ Kg3 c4 b5 h4+ Kh2 a4 g5 a3 b7 a2 d6 Ke6 b6 e4 g6 e2 f5+ Kd5 g7 e1Q d7 e3 Ne2 c3 Qa4 c2 Qa7 Nf6 g8R Qb4 Rg3 Bg7 Nd2 Ne8 Ne4 Qf8 Bb2 c1Q Rb1 a1N Nf2 Nb3 Qa2 Ra7 Rhg1 Qg5 d8Q+ Nd7 b8Q Ba6 b7 Rh6 Qbc7 Rb6 b8Q Bh8 Rh1 Qgg8 Qg5 Rb4 Qh5 Bd3 Qc3 Be4 Qe1 Bd3 Kg1 h2+ Kg2 h3+ Kf3 Ba6 Rhg1 h1B+ R1g2 h2 Qb5+ Kd6 d5 Nd4+ Kf4 Ndf6 Rh3 Ng4 Rgg3 Be4 Rf3 h1B Kg3 Bg2 Kh4 Bb7 Rhg3 Bh3 Bg2 Ba8 Bh1 Bf1 Bg2 Ke5 d6+ Bad5 d7 Kd6 Nf4 e2 Rb3 Bc6 Rge3 Ba8 Qd2 e1N Ne2 Nd3 Qe1 Nde5 d8Q+ Nd7 Qda5 Bc2 Bc6 Be4 Qab6 Nc5 Bd7+ Kd5 Qc7 Qh7 Qbb6 Qhg8 Ba4 Nd7 Qb5+
2QN1K2/1qNq4/1qQ1Bb2/1P4rk/1rbR3B/1B6/qB1B3Q/rn1rR1nb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 d4 Kg6 e4 a4 b4 f3 b6 a3 g5 c4 b5 c3 b7 a2 d6 h3 d7 f2 Ke6 c2 e5 f4 d5 h2 d6 h4 Qf3 h3 Bc4 f1Q Qe3 f3 Qc5 f2 Bb3 Ra4 Ne2 Bg7 Bd2 c1R Nbc3 Ne7 Qc6 Rh5 Nd4 Qd1 Nd5 f1Q Nc7 Qf2 Re1 h1B Rb1 a1R Re4 Na6 b8Q h2 Rg4 Qdg1 Re4 Rf1 Rbe1 Rb4 Rh4 Qe8 Rf4 Bb7 d8B Bf6 d7 Nd5+ Kd6 Ba8 e6 Nc5 e7 Na4 Nde6 Nac3 Rd4 Nf4 Qc8 Qf7 e8Q Nh3 Qh8 Nb1 Be7 Qgg2 d8B Ng1 Bf8 Qg4 Bg7 Bd5 Be7 h1Q Nd8 Qgg2 Kd7 Bc4 Kd6 Bb7 Kd7 Qe6+ Ke8 Qd7+ Kf8 Ba8 Bc3 Qa2 Bd2 Qf2 Qh6+ Kf5 g6 Rg5 Qh7 Qe4 Bh8 Kg4 g7 Qe3 g8B Qf2 Qf5+ Kh5 Be6 Bb7 Qf4 Qeg2 Rd5 Qb6 Rd4 Qf3 Re5 Rd1 Re1 Qg2 Qh2+ Qh3 Qcd6 Bh1 Qc6 Qh4 Bd6 Qb7 Bg3 Qh3 Bh4 Qe3 Rg4 Qea7 Rd4 Qab6 Rg4 Bd4 Rf4 Be3 Bb2 Bd4 Rfe4 Bf6 Rd4
RNBrN3/B2bb1Br/2P1qB2/Q5Q1/Bq1q1br1/r3b1k1/n2R2R1/n4K2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 g4 Kf6 f4 h5 b4 e5 b6 a5 b7 d5 b5 a4 b6 a3 c5 e4 c6 a2 Rh2 d3 Qd2 e3 Qc3+ d4 Be2 h3 Nf3 d2+ Kf1 d1Q+ Ne1 h4 Rg2 h2 Bb5 h1R+ Rg1 h3 Bb2 h2 Nd2 Qd5 Nc4 Bd7 Qa5 Rh4 Nd6 Qe6 Ba4 Na6 b8R Be7 b7 Nb4 Rd8 Nc2 b8B Ra6 Ba7 e2+ Kf2 Qd2 Rg2 Qb4 Nd3 Rd1 Nc5 e1B+ Kf1 Rd3 Ra8 Bd2 Rd1 Be3 Rdd2 a1B Bc3 Rh7 Bb2 Ra3 Bc3 Rb6 Na6 Rb8 Bb2 Rd8 Nb8 Qe5 Bc3 d3 Bcd4 Bb2 Bc3 Na1 g5+ Kg7 g6 Kh6 g7 Kh5 f6 Kh4 f7 Nf6 f8B Bc1 g8B Ne4 f5 Qe6 Bh8 Nc3 f6 Na2 f7 Kh3 Bf6 h1R+ Rg1 Rh4 B8g7 Rg4 f8Q Rh2 Ne8 Rh1 Rd1 d2 Bh7 Rh2 Qg8 Bf4 Rg2 Be3 Re2 Kg3 Bf5 Rh7 Rg2+ Kf3 Re1 d1Q Rd2 Kf4 Rg2 Qdd4 Ree2 Kf3 Rd2 Bf4 Bd3 Be3 Ba6 Kf4 Bc8 Kf3 Rh2 Bf4 Rdg2 Bce3 Rd2 Kg3 Rhf2 Qee4 Qgd5 Qe6 Qg5 Qdd6 Rh2 Qdd4 Rhg2+
r1QKn1Qr/1k5B/1P4q1/2n5/2QRb3/2bq1rr1/2n1N1QB/N1R1QbRn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 a5 d4 h5 e5 a4 g5 h3 g6 a3 b6+ Kb7 e6 h2 d6 a2 e7 h4 e8Q c4 d7 c3 b5 h3 d5 c2 g7 Be7 d6 Bg5 Qde1 Bf6 Qf7 Bc3 Nd2 Na6 Ne2 Qe8 Qc4 Qg6 d8R Nc5 d7 Nf6 g8Q Ne8 Rg1 h1N Nb3 h2 Ba3 c1R Bh3 Na4 Bd6 Nc5 Bb8 Rd1 Rc1 a1N Bg2 Nc2 Na1 Rd6 Qg7 Rf6 Bh3 Qh6 Qg2 Qg6 Bc7 Ng3 Bg4 h1R Bh5 Rh3 Be5 Qg7 Bg6 Rf7 Bh7 Qg6 Kf2+ f3 Bb8 Na3 Ke3 Nc2+ Kf4 Nh1 Bc7 Rg3 Bd6 Bd2+ Ke5 f4 Kd5 f2 Bb8 Nf6+ Kd6+ f3 Bc7 Rff8 Ke7 f1Q Be5 Ne8 Bf4 Rg5 Bh2 Bb4 Qd4 Rg3 Qc4 Kb8 b7 f2 Qh3 Kc7 Qg2 Rf3 b6+ Kc6 b8Q Bc3 Qd6+ Kb7 Qde6 Rh3 Qg8 Rg3 Nf4 Qfd3 Ne2 Nc7 Re8 f1B d8Q Bf5 Qc8+ Kc6 Rd8 Be4 Qb8 Ne8 Rd4 Ng7 Qbe8+ Kb7 Qef8 Ne8 Qf5 Ra7 Kd8 Ra8+ Qc8+
2qn1N1R/1q2P3/B2qq2Q/k2n1Q2/bQ1b2bb/K1R3Qn/3r1r2/2B2QRN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 g4 c5 e4 Kc7 d6+ Kb6 d7 c4+ Ka2 f3 b4 f2 e5 c3 d5 a4 e6 f4 d6 f3 g5 h3 g6 h2 g7 a3 Nh3 c2 Rg1 h1Q Nf4 h4 Nc3 h3 Qd2 h2 Qd3 Be7 Qf5 Bh4 e7 Nc6 Nd1 Nf6 g8R Nd5 Ng6 Qg2 Be2 f1B Nf2 h1N Nf8 Ra6 Kb3 a2 Rg3 Qc7 d8Q Ra3+ Kb2 Rd3 d7 Rd2 Ka3 Rh6 Qe8 Nd8 Qeh5 Rf6 Qh6 Qd6 Rg8 Qg6 Rh8 Qg2 Rb1 a1B Rb3 Bd4 Rc3 Qg8 Bd3 Qge6 Bc4 Be2 Bd3 Bd1 Bf1 Ng3 Nh1 f2 Be2 f1Q Bd3 Kb7 b6 Qf3 Bf1 Ne4 Ba6+ Ka8 b7+ Ka7 Kb3 Kb6 b5 Ng5 b8Q+ Ka5 b6 Qg2 b7 Nh3 Qf1 Rff2 Qc7+ Bb6 b8Q Qf3 Qcc4 Bd4 Qcd3 Qfe4 Qg3 Bg4 Kb2 Bb7 Ka2 Bc6 Kb3 Ba4+ Kb2 Qb6+ Ka3 Qf4 Qe5 Qb7 Qf5 Nf7 Bb2 c1Q d8Q+ Qfc7 Qa8 Nd8 Qb8 Qc2 Bc1 Qd3 Qff6 Qcc8 Qbf4 Qg6 Q6f5 Qgf6 Q4e4 Qfe5 Qb1 Q5d6+ Qb4+
1rBR1B2/2QQQQn1/r2Q1bn1/1NKP2r1/1n1r1b2/4b3/k1n2N1R/1b1N3q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 a5 d4 h5 g4 f5 b6 c5 g5 h3 b5 f3 Ke3 a4 g6 f2 g7 c4 b7 h4 b6 f4+ Kd2 a3 Kc3 f3 Kb4 h2 Bh6 h3 Kb5 c3 Be3 c2 Nd2 c1B Bd3 f1N Kc4 a2 Qc2 f2 Qa4 Ng3 Nf1 Qh4 Bh6 Bf4 Rd1 a1B Ne3 Ne7 g8Q f1N Qf7 Na6 b8N Be6 b7 Nh5 Nc6 Bf5 Na7 Ng6 Qc2 Be7 Bf8 Nb4 Qe2 Ng7 b8Q+ Kd7 Nb5 Ra6 d6 Kc6 d7 Bc5 d8Q Rh5 e5 Rg5 e6 Qh7 Ng4 Ne3+ Kb3 Be4 e7 Nec2 Nf2 Qh6 Rd2 Bb6 d5+ Kc5 Nd1 Bf6 Qg4 Ba7 Qgd7 Bf5 Bf1 Bd3 Qa5 Bb6 Ka4 Kc4 e8Q Bbe3 Qbd6 Qh5 Qee7 Qh4 Nf3 Qh5 Rg1 h1R Ne1 h2 Bh3 Qh6 Rgg2 Rg1 Rg4 h1R Rh2 Bf5 Rh4 R1g4 Nd3 Re1 N3f2 Re2 Qde8 Rd2 Q7d7 Rd4 Qee7 Rg1 Rg4 Qh5 Rgg2 Qf3 Rg4 Qh1 Rh4 R1g4 Rh8 Rh4 Rg8 Rh6 Bg4 Rb6 Qaa7 Rb8 Ka5 Kb3 Qac7 Ka2 Bh3 Rd8 Kb6 Rb8+ Kc5 Nh4 Qdb6 Ne1 Qdd8 Bb1 Bc8 Nec2 Qdd7 B6e5 Rh8 Rd6 Qbc6 Bf6 Rg8 Ngf5 Bg7 Ng6 Rd8 Re6 Bf8 Ng7 Qe5 Rd6 Qcc7 Ra6 Q5d6
2R2r2/3nr1nR/4B3/b1BR2qN/1BQ1Qq1r/1K4Bb/p1nNB1Pq/1b2k3 b - - 0 1 illegal: No possible last move
1KnQ2r1/rQ1QQB2/Q7/4r1b1/R1N2q1q/1bb2qBP/1nNkp3/2n3BR b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 Kf4 b4 a5 d4+ e3 d6 g5 d7 e5+ Kd5 c5 b6 c4 f3 c3 b7 a4 b5 g3 b6 c2 h3 g2 Ba6 a3 Qd2 g4 Qa5 e4 Nd2 e2 Nc4+ e3 Nd6 e1R Bc4 a2 Qa6 Qh4 d8Q g3 Qd7 Nc6 b8B Ra7 b7 Ne5 Ke6 Re2 d5 Bh6 Ba3 c1Q Bc5 Ne7 Bc7 Bg5 b8Q Rg8 Qbb7 Nd3 Bd4 Bh6 Bdb6 Re1 Bb3 Nb2 Ne2+ Kg5 Bc4 g1Q Nd4 Kf4 Nc2 g2 Bc5 Qgf2 Bd4 Kg3 f4 Kf3 f5 g1N f6 Ne2 f7 Bg5 Ke5 Qd1 f8Q+ Qf4+ Ke6 Qh4 Qf6 Nc1 Qf7 Nf5 Qe7 Qd3 Bc5 Ke2 Bb3 Kd2 B5b6 e2 Bg1 Rd1 Ne8 Qdf3 d6 Qc4+ Ke5 Qf7 Qda4 Be6 d7 Nd6 d8Q Kc3 Qad7 Nc8 Bb8 Rd3 Bd5 Kd2 Bc7 Nb6 Kd6 Re3 Kc6 Nc8 Bg3 Q7f5 Kc7 Q5f4+ Nd6 Re5 Kb8 Bf7 Be4 Bb3 Bg6 Re6 Bf7 Re5 Rb1 Nd1 Rb2 a1B Ra2 Bc3 Ra4 Nb2 Nc4+
1k1r4/1b1qRQ2/1Rnnb2B/RR2q3/Bp1N1N2/qR1n2br/r1P4Q/NK6 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 e5 f4 g5 a4 d5 h4 Kd7 h6 Kc7 a5 b5 h7 d3 f6 b3 h5 d4 f7 b4 a6 b2 h6 g4 a7 g3 f5 g2 f6 e4 Rh5 Bd7 Nh3 g1Q Raa5 Qg3 Qe2 Ne7 Qh2 Nc8 Rhb5 Qe5 Nf4 Bd6 f8Q Nc6 f7 e3+ Kd1 Qde8 Nd2 b1Q Nb3 d2 Na1 Be6 Ra3 Qa2 Rb3 Qd7 Qg8 Qb1 f8N Qa2 Qf7 Qa3 Bg2 Rg8 h8R Rg3 h7 Rh3 Ke2 d1B+ Kd3 e2+ Kd2 N6e7 Bc6 e1N Rb6 d3 Ba4 Nc6 Rg8 Rb8 h8R Bf3 Rg7 Ra8 Rh5 Bh1 Kd1 d2 Rgh7 Nd3 Rg5 Rb8 a8R Rb7 Raa6 Kb8 Ra5 Bc7 Rf5 Nd6 Rg5 Bd8 Rgh5 Bh4 Rf5 Bg3 Rab5 Bc4 N8e6 Be4 Nd4 Be6 Ke2 d1R Be3 Rb1 Kd2 Rb2 Rg7 Ra2 Rh5 Nb2 Kc1 Nd3+ Kb1 Bg2 Ng6 Be4 Bh6 Bf3 Ra5 Bg2 Nf4 Be4 Rba6 Rc7 Rh7 Rc8 Rf5 Rd8 Rg7 Ne7 Rb6+ Bb7 Rh7 Nc6 Rh5 Qf6 Rhb5 Qfe7 Qg8 Qf6 Re7 Qe5 Qf7
Q1Nq1q2/NR1r4/2b1bB2/1r1pbQ2/R2nQ2n/1k3r1q/R1P1B2n/2QQK3 b - - 0 1 illegal: Other
Q1Bn1r2/BB1N1k1q/P1rN2n1/3p2b1/KRB5/2R3B1/2r1Qb2/R1qq2nb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 b5 g4 h5 f4 e5 c4 h4 Kc2 e4 Kb3 d3 a4 d6 c5 d2 f6 e3 g6 h3 g7 e2 f7+ Ke7 f5 e1B a5 h2 c6 Bb7 c7 Qd7 c8B Bd5+ Bc4 Bf2 g5 Rh6 g6 Nc6 a6 Nd8 f6+ Ke6 Qf3 Ne7 g8Q d1R g7 Rd2 Bb2 Rc2 Nc3 Ng6 Ne4 Be7 Qe2 Rb8 Nf3 Ra8 Rhf1 h1Q Rfb1 Qc1 Ne5 Rb8 Ka2 b3+ Ka3 Qd1 Bd4 b2 Ba7 b4+ Kb3 Ra8 Rc1 b1N Qf8 Rb8 g8B Nc3 Bb7 Qc8 Nd7 Qc5 Qe8 Qe3 Rcb1 Qec1 Bh7 Rc8 f8R Rc6 f7 Rh5 Bb8 Rf5 Ba7 Rf6 Rg8 Rf5 Qf8 Bg5 Rg7 Rf3 Qg8 Ke7 f8B+ Ke8 Qh8 Rf5 Rg8 Kf7 Bg7 Rf3 Be5 Rf6 Bg3 Rf3 Qe3 Ne2 Ka4 Ng1 Qe2 b3 Re8 b2 Re6 Ne5 Bf5 Rf4 Rh6 Ng6 Rh4 Rf3 Ra3 Rf4 Rba1 b1Q Rc3 Rf3 Ndc5 Rf4 Bfc8 Rf5 Nd7 Rf3 Nef6 Rf4 Ne8 Rf5 Bb5 Bh1 Rb4 d5 Bc4 Qbb2 Re3 Qg7 Rc3 Rff6 Qh2 Qh7 Nd6+ Kg7 Qh4 Rf8 Qd4+ Kg8 Qb6 Kg7 Qc7 Kg8 Qb8 Kg7 Qa8 Kg8 Ne4 Kf7 Nd6+
1NBk2n1/1pr3N1/5QKR/bq6/2Bqr1B1/B3R1Qb/1q1B1P1b/1Qr2n1n b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 c5 Ke3 e5 g4 h5 d4 b3 a4 h4 a5 c4 g6 h3 g5 b2 g7 c3 g6 h2 a6 c2 a7 Qf6 d6 Qe6 d7+ Ke7 d8B+ Kd7 d5 Qf6 d6 Qh4 Be2 Be7 Nh3 Qh6+ Nf4 Bg5 Na3 b1Q Bd2 c1Q Nb5 Rh7 Nc7 Qcb2 Na6 Qh4 Ra3 Nc6 Be7 Nd4 Bg4+ Ke8 Qg1 Ne2 Nb8 Ng3 Qc1 Bf6 Nh5 Qb5 Qe1 Q1b2 Qb1 Bd7 Bf8 Kd8 Rd3 Be6 d7 Bf5 Ba3 Nf1+ Ke2 e3 Kf3 e4+ Kf4 e2 Re3 Ne7 g8B e1B Bd5 Ng8 g7 Be7 Be6 Qhf6 Qa1 Qfd4 Qb1 Bd6+ Kg5 Bc7 Bc4 Be6+ Kg6 Bd6 Na6 Rc8 Nb8 Rc7 a8Q Rh8 Bge2 Bh3 Bg4 Rh7 Bce6 Rc1 Qa7 Be5 Qc5 Bd6 Qe5 Bc7 Qg3 Bd6 Rb3 e3 Rc3 e2 Re3 Nh6 g8B Re7 Rg1 h1N Ng7 Be5 Bgf7 Ng8 Rg2 Bf4 Rh2 Rc7 Bef5 Re4 Bc4 Bd6 Bc1 Beb4 Bd2 e1R Bfe6 Ba5 Bef5 Bg2 Rh6 Rc1 Qh2 Bh3 Qg1 Bh2 Qg3 Qdc5 Ne8 Ke7 d8Q+ Kf8 Qd4 Ke7 Ng7 Qd6+ Bfe6 Kd8 Qde5 Qdd5 Bc8 Qdd4 Qf6+
kBnB1B2/4b2N/1n3bn1/b3Q1Q1/5rR1/2RPrB1q/1Q1KB1p1/1b1N2br b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Kd7 h4 a5 b4 g5 b6 f5 e5 c5 h5 g3 h6 f3 d6 Kc6 h7 Kb7 d7 f4 b5 g2 e6 c4 e7 g4 e8B f2+ Ke2 f3+ Ke3 a4 Nh3 g1B Ba3 g3 Ng5 g2 Bc1 a3 Qc2 c3 Bf7 a2 Na3 Be7 Nc4 Nc6 Qd1 c2 Be6 Na7 Bg4 Rb8 Rh6 Ka8 Ba3 c1B Be2 f1R+ Kd3 f2 Rc6 Bb2 Qc1 Bc3 Bgf3 Re1 Nb2 f1N Nd1 Ba5 Bb4 Qe8 d8B Bf5+ Kc3 Bc2 d3 Ne3 Kd2 Nd5 Rb1 Nc8 b7+ Ka7 Qb2 a1B Qf6 Qd7 b6+ Ka6 Rc1 Bb1 R1c4 Qh3 Rg4 Be5 Qg6 B5f6 Qg7 Bf8 Qh6 Nge7 Qh4 Ng6 Qg3 Ra8 b8B B8e7 b7+ Ndb6 Qh4 Re8 h8Q Rf1 Nh7 Re1 Bg3 Ka7 Qg5 Rb8 Bgc7 Bec5 Bg3 Re3 Qe8 Bd6 Qee5 Bde7 Qb2 Bf2 Bf4 Rh1 Bd6 Bg1 Qbe5 Ra8 b8Q+ Ka6 Qc7 Rb8 Qe6 Bf8 Rc1 Nd7 Qc2 Ka7 Qee5 Rb5 Qcb2 Ndb6 Rc6 Ka8 Bb8 Bd6 Qbc3 Bf8 B4d6 Rb4 Qa3 Qh2 Qab2 Qh3 B6c7 Bc5 Be7 Bd6 Bf8 Bde7 Bd8 Rf4+ Rc3+
1Nn1k1n1/Rnn2R2/2q1r1rQ/2Q4n/br4N1/Bp3BPB/1Q6/K1Q1bb1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 h5 Kd2 b5 Kc2 c5 Kb2 e5 a4 h3 f4 h4 d6 e4 d5 e3 f6 b3 a5 h2 a6 e2 f5 e1R a7 h3 Ra5 c4 Qc2 b4 Na3 c3+ Ka1 Qb6 Nc4 Rh6 Ne2 Nc6 Nd4 Ba6 Ne5 Rg6 Ng4 Rb8 a8B Re6 Qb2 Na7 Nc6 c2 Ra3 Rb7 Nb8 Nc8 Ra5 Bd3 Ra7 Qc6 Rg1 h1N f7+ Kd8 f6 h2 d7 Ng3 Rh1 Nh5 g3 Bg7 Bg2 Bf1 Bh3 Rb5 Rg1 h1B Rg2 Bh6 Rf2 Bd2 Rf5 Be1 f8Q+ Re8 Qd6 Re6 f7 Bf3 Qde5 Bd1 Rf3 Ke7 d6+ Kf8 Qc5 Rb6 Bf4 c1N Be5 Nd3 d8Q+ Re8 Qf6 Re6 Qcc1 Nc5 d7 Nb7 Qh8 Ke7 Qhh6 Kd8 Bd6 Rb5 Qg2 Bc2 Qh1 b2+ Ka2 b1N Ka1 Na3 f8Q+ Re8 Qf5 Ba4 Qfc5 b3 Rf7 Ree6 Qb2 Rb6 Qcc1 Nb5 Ba3 Nc7 Qc5 Rb4 Qcc1 Nc5 Bb7 Qb5 Bf3 Nb7 Rf5 Ke7 Rf7+ Kd6 d8Q+ Qd7 Qdg5 Qc6 Rf6 Ke7 Qgc5+ Ke8 Rf7
Bbk1Kn1r/1b5B/r1r2BNr/1Q4R1/5P1b/5nQB/Rp6/1qnrN1NB b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 c5 Kf4 h5 Kf5 b5 Kg6 e5 Kf7 b3 a4 b4 d4 b2 f4 b3 g4 h4 g6 c4 d6 e3 a5 h3 g7 e4 g5 e2 d5 e1R g6 h2 a6 c3 a7 e3 Ra2 e2 Qd3 c2 Na3 b1R Bb2 c1R Qg3 Qb6 Bf6 Ne7 g8B Nf5 g7 Red1 Bh7 e1B g8B Rc6 Bh3 Bb7 Nc2 Kc8 Ke8 Nd7 Bf7 Bf2 Ne1 Nh4 Bfg6 Nf3 Be4 Rb8 a8B Ra1 Ne2 b2 Rg1 h1N Rg2 Qe3 Ng1 Qc1 Qg6 Rc7 Rg5 Ng3 Qg8 Ne2 Qg6 Nfd4 Bh1 Bh4 Qd3 Rc6 Qe3 Ne6 Qg3 Ne5 d7+ Kc7+ d8N Kc8 d6 Qb1 Ra3 Nc1 Nf7 Nf3 Ne5 Ra2 Ra7 Raa6 Ng6 Be7+ Bg8 Rh6 Bh7 Rab6 Ra3 Ra6 Ra2 Bd8 Bf1 Bb6 Bh3 Ba7 d7+ Kc7+ Kf7 Rh8 Ke7 Nf8 Ke8 Kb8 d8Q+ Bc8 Qa5 Bb7 B3g2 Kc8 Qb5 Bb8 Bh3+
5r2/k7/1rq3n1/K3bBRP/brNbRRBQ/3Qb1Bp/RN5n/2bn1R2 b - - 0 1 illegal: No proof kernel
nBNb1bB1/5rQ1/kq5b/Q1QR2P1/2N1pRbR/5rn1/R1R3n1/3r1bK1 b - - 0 1 illegal: No possible last move, all moves rejected
n5rR/bkB1QQ1n/bB2p2B/Nn5N/1P2B1RK/1nr5/1nq4R/Br5b b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 f4 c5 Kf2 Kc7 d4 a5 b4 h5 g5 h3 Kg3 h2 d6+ Kb6 f5 a4 g6 e3 d7 e2 f6 e1N d5 c4 f7 c3 d6 a3 g7 c2 Nd2 a2 Kh4 Nf6 g8Q e6 Bg2 Nd3 Ngf3 Ba6 Bb2 c1N Nd4 Nb3 Be4 Qc8 d8R Qc2 d7 Nh7 Nf1 Bc5 Nc6 Kb7 f8B Nd4 b6 Nb5 Qf7 Rg8 Bh6 Bg1 Bc3 Nb2 Qd6 Bc5 Rc1 a1N Qde7 Nb3 Ng3 Be3 Rhg1 h1B Rcd1 Bf2 Rd2 Be3 Re8 Bc5 d8B+ Nd7 Rh2 Rc8 Kh3 h4 Nh5 Rc7 Rg6 Be3 Kg4 h3 Kh4 Bc5 Rg4 Bg1 Re2 h2 Be5 Rg7 Rh8 Rg8 Bc3 Bf3 Bcg7 h1R+ Rh2 Bc5 Bf6 Rb1 Bd4 Bh1 Be5 Nd1 Ba1 Nb2 Na7+ Kb8 b7 Rc6 Bb6 Bd4 Bd8 Rc3 Ba5 Bb6 Nc6+ Kc7 b8B+ Kb7 Bc7 Ba7 Qg5 Nb6 Qge7 Na8 Bab6 Re1 Rgg2 Rf1 Rg4 Rb1 Na5+
1rrB1br1/2RN1P2/nbpQ1N2/N1bq1N2/2NQ4/5bn1/1RK3Bn/k2B2b1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kf6 d4 e5 Kd2 h5 b4 a5 f5 a4 b6 e3+ Kc2 h3 b7 h4 d6 e4 b5 e2 d7 e1B d5 Ke5 d6 h2 g5 a3 g6 e3 f6 c6 g7 h3 b6 e2 Ra2 Na6 b8N Bb4 b7 e1B Bg2 Nh6 g8B Bf2 Ne2 Bb6 Bg5 Ng4 Ng3 B4c5 Nd2 Kd4 Bb3 Rg8 Rb2 a2 f7 a1B Re1 h1N Re7 h2 Qg1+ Nhf2 Nc4 h1R Qh2 Ne4 Nf5+ Kd5 Qh8 Nh2 Bf6 Rb1 Qg7 Qc7 d8Q Qd7 Qg4 Qe6 Nd7 Bg1 b8N Bbc5 Ra2 Bad4 Rb2 Qe5 Bh4 Bb6 Nf6+ Kc5 d7 Kb4 Qg6 Ng3 Qg4 Bdc5 Qd4 Qe6 Qc7 Qd5 d8N Be6 Nbd7 Rc8 Ng7 Bh3 Nb7 Bg4 Nf5 Bh5 Nba5 Bf3 Nd2+ Ka3 Qd6 Qe4+ Kc3 Qd5 Bd1 Ba7 Kc2 Bb6 Rb5 Ka2 Rb2+ Ka1 Ndc4 Rd8 Nde5 Re8 Rc7 Rc8 Ned7 Rb8 Be2 Re1 Bd1 Ree8 Ng4 Rec8 Bd8 Rg5 Ngf6 Rg7 Qh4 Rg8 Qd4
Q1n1q1R1/q2Q1nK1/1r6/b1bQB2Q/1k3q1R/bBQB4/1p4P1/NNr3bb b - - 0 1 illegal: No proof kernel
1bkNRN2/R1B1r1N1/4qr2/Q1N2nb1/2B1b3/2brP3/K1nbp3/QNB4q b - - 0 1 illegal: No proof kernel
2R3nN/3n1r1r/1qr4R/N2QBQ1r/2q1QK1Q/1Pr1QBB1/2bb1p2/2kq4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 e4 Kd4 b6 c5 b7 a5 g5 h5 g6 f5 d3 h3 g7 h2 d6 h4 e5 h3 b3 c4 d7 c3 e6 c2 e7 a4 e8Q a3 Bg2 a2 Qd2 Rh7 Na3 Qb6 d8Q+ Nd7 b8B Ra7 Qg5 Bb4 Qde3+ Kc3 Q8e4 Ba6 d4+ Bd3 Bd2+ Kb2 d5 c1R d6 Rc3 Rc1 a1Q Ne2 Bc2 Be1 Rc6 Bg3 Bd2 Rcd1 Qc1 Nc4+ Kb1 Na5 Rac7 Qf6 Rc3 Qfe5 R7c6 Qc5 Be1 Rd5 Bd2 Re5 Rh5 Re8 Qd1 Rc8 Kb2 Kf2 f3 Nf4 Kc1 Ng6 f4 Nh8 Rf5 Qb5 Rf6 Qbf5 Rf7 Re1 h1R Rg1 Nh6 g8Q h2 Qgg5 Ng8 Rf1 Rg1 Qh4 h1R Re1 Rh3 Bc7 Rgh1 Rg1 Nb8 d7 R1h2 d8Q Nd7 Be5 Rh1 Qhg5 Rhh7 Qgg4 R1h6 Qgh4 Rh5 Re1 Nc5 Qdd5 Nd7 Kf1 f2 Bf3 Nc5 Kg2 f1Q+ Kh2 Qc4 Rh1 Nd7 Kh3 Bd3 Kg4 Bc2 Be2 f3 Kf4 f2 Bg4 Re7 Bf3 Ref7 Qe7 Rg5 Rh6 Rh5 Qh4
2b4n/1B3r1N/N1R1NQ2/nB1N3k/K4nNn/p1b1n1B1/3Q1qPr/q1rR4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 f5 b4 Kf7 d4 Kg6 Kd2 h5 Kc3 c5 Kb3 a5 d6 c4+ Ka4 f3 d5 c3 d7 f2 b6 f4 d6 f3 e5 c2 e6 h3 b7 h4 b5 h2 b6 h3 e7 Ra7 Bd3+ Kh5 Ne2 f1Q Bf4 c1N Nec3 Bg7 Ba6 Nd3 Qd2 f2 Na3 Nc6 b8N Qf8 d8N Nh6 e8B+ Rf7 Nd5 Bc3 Bg3 Nf4 b7 Qe1 d7 f1N Rd1 Ne3 Rf1 h1N Nc4 h2 Ne6 Qg7 d8N Qf2 Ne5 Rh7 Ng4 Qh8 Bh4 Ng3 Nf8 h1R Nde6 Ngf5 Bg3 Nh4 Bb5 Qe5 Na6 Rh2 b8Q Rg7 Ka3 a4 Qd6 Na5 Bec6 Rc7 Qd8 Nf7 Bb7 Nh8 Nh7 Rgf7 Qf6 Rc6 Ka2 a3 Rh1 Nac4 Kb3 Na5+ Ka4 Bd4 Ra1 Rc1 Rd1 Bc3 Rb1 Qf5 Rb4 Qb1 Rc4 Qa1 Rc6
4Q3/r1bkR3/2q1bq2/1q2n1Qq/P3BNq1/1r2Rrp1/QRQK3N/B1n4Q b - - 0 1 illegal: No possible last move
1QR1N2q/2n1R1r1/5bRq/Q2b3P/1rBRn1K1/3Bb2R/1rkB1p2/rr1N4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Kg3 c4 b5 c3 b7 a4 b6 f2 Ra3 c2 Rb3 a3 Qf3 a2 Rh3 a1R Qc3 R8a2 Ne2 Bg7 Na3 Nf6 Qa5 Be6 Bd2 c1Q Nc3 Na6 b8R Nc7 b7 Rb2 Bd3 f1R Rc8 Re8 b8Q f4+ Kg2 g3 Nd1 g4 Rb7 Re7 Ra7 Qh8 e5+ Kd7 d6 Kc6 d7 Ne4 d8R Bf6 Re8 Bd5 e6 Rg7 e7 Rf3 Bc4 Rfb3 Nb5 Rb4 Nd6 Rab1 Rg8 f3+ Kg1 g2 Kh2 g1R e8B+ Rd7 Bg6 Rg7 Ne8 Ra1 Rh4 g3+ Kh3 g2 Kg4 Re1 Rh3 g1B Rb7 Be3 Ra7 f2 Rb7 Ng5 Bgd3 Ne4+ Kf5 Rf7 Rg6 Rg7 Kg4 Qc2 Nc3 Reb1 Nd1 Qc1 Qa2 Bf7 d5+ Kc5 d6 Kd4 d7 Bd5 Qa5 Bc6 Bf7 Bd5 d8R Qc6 Bc2 Kc4 Bd3+ Kb3 Ra7 Qd6 Rd7 Qdf8 Re7 Qh6 Ra6 Qfh8 Rd6 Bc4 Rd4 Bd5 Bf1 Kc2 Bg8 Bb7 Bgc4 Bd5 Bfd3+
3Bqnq1/3R2NB/6n1/Q1KQN1NP/r4k2/2R2Bnb/1nNn1p1N/1br3b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 a4 b5 a3 b7 g3 b6 g4 Be2 f2 Bf3 f1B Rh3 a2 Na3 g2 Nc2 Nd7 b8N g3 b7 c4 Nc6 c3 Ne5 Ne7 b8N Ra3 Nbc6 Ra4 Ng4 Qe8 Nce5 Ng6 Nh2 Bd3 Rb1 a1N Rb7 Nb3 Bb2 Ke7 d6+ Kf6 d5 Kg5 Ra7 Nd2 Rc7 Ra5 Kd4 f4 Qa1 Ra6 Qa5 Bg7 Ba3 Ndf8 d7 Bf6 d8N Rg8 Ne1 c2 d6 c1N d7 Bb1 Be7 Nd3 Nc2 Nb2 Qd5 Ra4+ Kc5 Kh6 Ne6 Bg5 Be2 f3 d8Q f2 Ng7 Bf4 Ngf3 g1Q Ra7 g2 Qa5 Bg4 Rg3 Bh3 Ng5 Rh8 Rc3 Rh7 Nf1 Bh2 Bd8 Rh8 Bf3 Rg8 Nh7 Rh8 Rd7 Rg8 Nf6 Kg5 Nh7+ Kf4 Ng5 Rh8 Nc4 Rh7 e5 Rh6 e6 Rh7 Nf5 Rf7 e7 Rf6 Ne5 Rc6+ Kb5 Re6 Nc4 Nh8 Kc5 Re1 Nf7 Rc1 Nce5 Qh1 Bc7 g1N Bb6 Qg2 Bd8 Qg8 Ng5 Ne2 Ng7 Bg1 Nh2 Qg6 e8B Ng3 Bf7 Qe6 Bg6 Qe8 Bh7 Nhg6 Be2 Ne7 Bd1 Neg6 Bf3
b5r1/2R3b1/q2kB2B/QN2RQQp/N3PQbn/2rb4/2b1qn1K/rB5Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 Kg2 f5 d4 h5 d6 c4 b6 h3+ Kh2 f3 d5 f2 g5 a4 b5 f4 g6 f3 b7 a3 b6 c3 g7 a2 Bh6 c2 Nc3 c1R Nb5 Ne7 g8B Rc3 Rc1 Na6 b8Q a1Q b7 Nc5 e3 Nf5 Ne2 Qe8 Be6+ Kd8 d7 Ke7 Qa7 Rg8 b8Q Bg7 Qf4 Nd3 Qa5 Nh4 Rg1 Qa3 Rg5 Ra6 Bg2 f1B Re5 f2 Be4 Bg2 Bh7 Be4 Qh1 f1B Bhf5 Nf2 d8Q+ Kf8 d6 Bc2 d7 Qa4 Ng1 Bfd3 Ne2 Ra7 Qdc7 Ke7 Qcc6 Qc4 Qce4 Qc6 Bg6 Qa6 Qef5 Ra8 Na7 Kd6 d8Q+ Bd7 Qdg5 Qe7 Nd4 Bc8 Nb3 Qe8 Nc5 Bd7 Kg3 h2 Na4 Qe7 Qd1 h1B Kh2 Bf3 Qh1 Bdc6 Rb1 Bg4 Rb7 Qe8 Rc7 Bb7 Ba2 Qeb5 Bgf7 Qc4 Bb1 Qe4 Bb3 Qf3 e4 Qe2 Nc6 Ra7 Nd4 Ba8 Be6 Rb7 Qd1 Rb2 Qdc1 Ra2 Qh1 Ra1 Nb5+
1b3b2/N1R4R/NQ4BN/1K3Pr1/1N1pbrqR/q7/1Q2rn2/1bNk1nBb b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 f4 a5 b4 e5 b6 d5+ Kb5 h5 c4 a4 g5 d3 g6 h3 b7 h2 f6 d2 c5 Ke3 f7 a3 g7 e4 c6 a2 c7 h4 Ba3 h3 Qc1 Nc6 b8Q Qd6 Nc3 Ra5+ Kb6 Nh6 g8N Bf5 c8R Ng4 b5 Nf2 Bd3 Rh4 Qb2 d1Q Rc7 Qg4 Nh6 Qe7 Bd6 Nd4 Nge2 Nb3 Nc1 Nd2 Bc5+ Kf3 Kc6 e3 b6 e2 b7 e1R Nb5 Re2 Na7 Nf1 Rb1 Bh7 Bg6 a1B Qd8 Qe3 b8N Qa3 Na6 Rb5 Nb4 Ra5 Qd2 Be5 Qb2 Bed6 Be3 d4 Qb8 Rg5 Qb6 Be5 Kb5 Bed6+ Rc5 Bb8 Ra1 Be7 f8N Bed6 Nd7 Bf8 Bf5 Bg6 Rc7 Bh7 Nc5 Bg6 Rg1 h1B Nca6 h2 Rb1 Bg2 Rh7 h1B Rc7 Bh3 Rg2 Bh7 Rh2 B3g2 Ra1 Ne4 Bg1 Nf2 Ra2 Ke3 Ra1 Bd5 Bc2 Kd2 Bg6+ Kd1 Ra2 Bde4+ f5 Bg8 Ra1 Ba2 Rh7 Bab1 Rh3 Bfd6 Rc3 Bf8 Rcc7 Rh3 Ra2 Rf3 Ra1 Rf4 Ra2 Qb3 Ra3 Qa2 Rh3 Qa3 Rh4
BBn2QR1/RrqB2nK/5bB1/P1nbnr2/3kn2N/qpB3RQ/7q/3N4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 f5+ Ke5 b5 e4 h5 g4 b3 g6 b2 d6 f3 d3 b4 d7 h4 g5 h3 a5 h2 g7 f4 Kf5 b3 Kg6 f2 e5 f3 e6 Ra7 e7 Rh5 e8B Bb7 Bg2 f1N Qe2 f2 Nf3 Na6 Qe6 Nd2 Nc3 b1N Nh4 f1N Bb2 Ne3 Nd1 Na3 Bc3 Nac4 Qh3 Ne4 d4+ Kd5 Rf1 h1Q Rf7 c5 Rc1 Qb8 d8B Be7 Bc7 Qh2 Bd7 Bf6 Bg3 Qc8 Bb8 Qcc7 Bh1 Nf5 Bf3 Ngh6 g8R Nfd6 Kh7 Nc8 g6 Ne5 g7 c4 Rc2 Nc5 Rg2 Bc6 Rg3 Rf5 Bh5 Rb7 Re7 Nhf7 Bg6 Nd8 Rf7 Kd6 d5 Nde6 Bd2 c3 Re7 c2 Bc3 Na4 Rf7 Kc5 d6 c1Q Be8 Qd8 d7 Ra7 Re7 Qa3 Rf7 Qe7 d8Q Bd5 Bb5 Rc7 Qf8 Rd7 Bc6 Kc4 Ba8 Nac5 Rh8 Qd8 g8B Ng7 Re7 Ra7 Be6 Qd7 Rg8 Qb7 Bb4 Kd4 Rc7 Qc6 Bd7 Qb6 Rb7 Qc7 Bd2 Ra6 Bb4 Rb6 Ra7 Rb7 Bc3+
3rn1b1/3B1NN1/1BBn2kn/P1qn4/2p1bQ2/QR1qB3/1NR1B2r/b3K1n1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 e4 b5 d4 h5 a4 c5 g4 f5 g6 f3 d6 f2+ Kd2 b3 g5 h4 g7 Kf7 a5 h3 d7 f4 d5 b2 d6 b4 e5 f3 Qc2 h2 Qb3+ c4 Ne2 Na6 Nd4 Nc7 Nc3 b1Q Ra2 Ne8 Be2 Qe7 d8B Be6 d7 Qc5 Qa3 b3 Nf5 b2 Na4 f1N+ Kd1 f2 Bb6 Qe4 Be3 Nd2 Rf1 b1N Rc2 h1B d8N+ Kg6 Re1 Nf3 Rg1 Kh5 g6 Nd2 Rf1 Ne7 g8B Qd3 g7 Rc8 Rg1 f1N Bh7 Ng3 g8Q Bh6 Qf8 Bg8 Rf1 Bf4 Ng7+ Kh6 Bf5 Nd5 Bd7 Ng1 Qf7 Nf5 Qf6+ Kh7 Nf7 Rd8 Qh4+ Kg6 Qg3+ Bg5 Qf4 Rh2 Bc6 Nh6 e6 Nec7 e7 Bf6 e8B Ba1 Bed7 Ne8 Re1 Qf5 Rf1 Ne4 Re1 N4d6 Kd2 Ndc7 Rb1 Nd5 Ke1 Qd3 Rb3 Be4 Nb2
1Rr1RN1k/1qb5/2b4p/1n1rn1QK/1Nrr3N/2NQ1B1N/Br3P1q/1n2B3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 Kg7 d4 e5 g4 a5 g5 c5 g6 e3 Kf3 c4 b6 a4 b5 a3 d6 c3 b7 c2 b6 e2 d5 e1R d7 a2 Kg4 h6 d6 h3 Bd2 c1R Bc3 h2 Bg2 Qc7 Qc2 Nc6 b8N Red1 b7 Nge7 Qe4 Ra5 Qf5 Nd5 d8Q Bd7 Nf3 Rd4+ Kh5 e4 Na6 e3 b8N e2 Be1 Ne5 Qfg5 Nc3 Nb4 Nb5 Nh4 Qb7 Bf3 Rcc4 Nc3 Bc6 d7 Bd6 Rb1 a1R Rg1 h1Q Rg4 Qa7 Re4 Qh2 Rb2 R1a2 Re3 Nf7 Re8 Qb7 Rb1 Rg8 Rb3 Kh8 g7+ Kh7 Rb1 Ne5 Rb2 Rf8 g8B+ Kh8 Rb1 Rb2 Bf7 Rc5 Ba2 Bc7 Qd2 Ng6+ Q8g5 Ne5 d8N Rcc4 Qd3 Rg8 Ne6 Rf8 Bd2 e1N Nd7 Nc2 Nf4 Nca3 Nh3 Rg8 Be1 Rf8 Rb8 Rc8 Rc1 Nb1 Nf8 Nd6 Rc2 Rad5 Re2 Nb5 Re4 Nd7 Re7 Ne5 Re8
1NR1br2/1Q1n2RR/7p/3rBQ1N/1bQ1r3/nBP4R/KR1qrbkq/3r4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 b4 e5 g4 d5 c3 a5 Kc2 h6 Kb2 a4 b6 h3 b5 h2 b7 e4 b6 a3+ Ka2 e3 Bc4 e2 Qa4 e1B Nd2 d3 Ngf3 d4 Bb3 Nc6 b8Q Na7 b7 Bh4 Nf1 d2 Ng3 d1R Qc4 d3 Ne5 d2 Nc6 Bd7 Rb1 Bd6 Rb2 Bb4 Qc8 Re1 b8R d1R Rb7 Re2 Nb8 Be8 Rh7 Nb5 Qb7 Ra4 Be3 Qd2 Bb6 Ne7 Bc7 Nc8 Bd6 Nb6 Bc7 Bf7 Bd6 Nd7 Be5+ Ke7 g5 Rf8 Nh5 Bf2 g6 Ra5 g7 Be8 Bf6+ Kd6 g8R Re4 Rg3 Rde1 Rh3 R1e2 Rg1 h1Q Rgg7 Qh2 Bd4 Qe3 f6 Qd2 Ka1 a2 f7 Na3 f5 Rc5 f6 Rd5 Be5+ Ke6 Rhg3 Kf5 Rh3 Rg8 f8Q Rh8 Qfc5 Rf8 Re7 Kg4 f7 Qg3 Qa5 Kf3 Qab5 Kg2 Qa5 Rh8 f8R Qh2 Rhg7+ Bg6 Rc8 Rf8 Rh7 Be8 Bd4 Rd6 Qf5 Rd5 Be5 Nb1 Rc2 Na3 Kb2 a1R Reg7+ Qg5 Rd2 Rc1 Ka2 Rd1 Rf7 Qgf4 Rb2 Qd2 Rfg7+
2b2rN1/4k1BQ/b1K1bPr1/N1R2b2/nQn2p2/1N1q1R1B/3N2Q1/r2qN1b1 b - - 0 1 illegal: No possible last move
RR1Bk1q1/3Nq3/2r1pBBB/K7/1r1n3n/1Q1Nb1b1/1B1Pb1Qq/2q2q1R b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 c5 b4 h5 g4 a5 f5 c4 f6 a4 d6 e6 g5 c3 b6 c2 b7 e3 b5 a3 b6 a2 g6 e2 g7 h3 Bb2 c1Q Na3 h4 Nc2 h2 Nf3 h3 Nb4 Ra6 Nd3 Rh4 Nfe5 Qe7 Nd7 Nh6 g8Q Nf5 Qg2 Nc6 b8B Ncd4 b7 Rc6 Bc7 Bg7 b8R Bh6 Bd8 Ba6 Kf2 Re4 Qa4 Nh4 Qb3 Rf4+ Ke3 e1B Be2 Bg3 Bh5+ Qf7 Bg6 Bb5 Rf1 h1Q Re1 Qh2 Rh1 Ndf3 Ke2 Ba6 Ke3 Rb4+ Ke2 Qc5 Kd1 Bc4 Kc2 Be3 Kc3 Nd4 Rab1 a1Q Ra8 Rb8 Be7 Qg5 Bd8 Bb5+ Kb4 Qa7 Be7 Qac5+ Ka5 Qc1 Be4 Qgg8 Bg6 Qc4 Bf8 Qc1 Bh6 Kd8 Bg5 Qe7 f7 Ba6 f8B Qf1 Ra7 Rb4 Bf6 Bb5 Bh6 Bc4 Nf2 Be2 Nd3 Qc1 Be4 Ke8 Ra8+ Kf7 Nb8 Ke8 d7+ Kf7 d8B Ke8 Nd7 Qgf7 Ba1 Rb8 Qf2 Qg8 Qb4 Qhg1 Rh2 Rb7 Qg2 Qgf1 Qa3 Rb8 Rb6 Rb7 Qb3 Rb8 Bb2 Rb7 Rh1 h2 Rg1 h1Q Bh7 Qh2 Rh1 Rc4 Be4 Rb4 Rb5 Rc7 Rbb8 Rc6 Bg6+
5qR1/2N4B/Kb1prbN1/B2QNBnr/4q3/1bnP1k2/N1N3R1/Qb2b1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 h4 Ke7 e4 Ke6 Ke2 Ke5 Kd3 g5 Kc4 f5 b6 a5 Kb5 f3 c4 Kf4 h5 f2 b7 g3 h6 a4 h7 g4 c6 g2 c5 a3 c7 a2 c6 g3 e5 Ne7 e6 Ra6 Rh6 Qe8 Rh2 Nd5 Nc3 Bb4 Bd3 f1B Nf3 g1B e7 g2 Ne1 Bb6 Nc2 g1R Rg2 B4a5 Rb1 a1B Na2 Bf6 Rb3 Qg6 e8N Qg4 Qe1 Kf3 Qe5 f4 Qa1 Qg6 Ba3 Bac3 Bb4 Qe4 Ba5 Be2 Rb2 Bd1 Rg8 Bb4 Ne3 Bb3 Nc2 Qe7 Bf5 Qe4 d3 Be1 Nc1 Ba2 Bg6 Bb1 Na2 d6 Bf5 Be6 c8Q Nd7 b8N Ra7 c7 Ne5 Qb7 Nf7 c8B Ng5 Nc6 Bf7 Qa8 Re7 Nc7 Nc3+ Ka6 Bb3 Qb7 Re6 Ne5+ Kg2 Qc6 f3 Qd5 f2 Bd7 f1Q Be8 Rh1 Beg6 Rh5 Rb8 Rhe8 h8N Rg8 Bh7 Rg7 Rg8 Qf4 Nc4 Kf3 Ng6 Nh3 Ne7 Rg1 Ng6 Ng5 Ncb4 Nh3 Rg2 Qh6 Nc2 Ng5 Qc5 Qg7 Qd5 Qf8 Nce5+
rBQ1b1rb/R1NN1Nn1/P4r2/5p2/Q3r1Q1/2b2N1N/qk2R1Kn/q2B1r2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 c5 h4 g5 a4 f5 h6 b5 a5 g4 h7 f3 a6 b3 h5 b2 h6 c4 Nh3 g3+ Kg1 f2+ Kg2 b4 Ng5 c3 Ra5 b3 Qg4 c2 Nh3 Nf6 Be2 f1R Ra2 Bd7 Bd1 Bg7 Nd2 b1Q Nf3 Rf8 h8Q b2 h7 Nc6 Bf4+ Ne5 Rg1 Rf7 Qe8 c1B h8N Qa5 Ng6 Bd2 Nf8 Bh8 Qc8 Bc6 Nd7 Qa1 Qe8 b1R Rc2 Be1 Re2 Q5a2 Qc8 Ke7 d6+ Ke6 Rh1 Ne8 Rh2 Rf6 d5+ Kf7 Rh1 Bb5 Qc2 Bd2 Qa4 Bc3 Rh2 Rb4 Rh1 Nc4 e5 Nd2 Rh2 Ng7 e6+ Kg8 e7 Kf7 e8N Re4 Nc7 Bc6 Nb8 Be8 d7 Ke7 d8Q+ Kf7 Nd4 Nf3 Qc8 Ke7 Rh1 Nh2 d6+ Kf7 d7 Ke7 Bg5 Kd6 d8N Kc5 Be3 Rf8 Bf4 Rf6 Qc6+ Kb4 Nf3 Ka3 Nd7 Qd2 Nf7 Kb2 Qa4 Qc2 Nd5 Qd2 Bb8 Qc2 Nf2 Qd2 Nc7 Qc2 Kh3 g2 Kg3 Qd2 Nh3 g1R+ Rg2 Qc1 N7g5 Qcc2 Nf4 Ne6 Nf8 Qe2 Qh3 Qcd3 Ncd5 Ng4 Qh5 Kc1 Rh4 Rd4 Nfh3 Qb1 Qg6 Rf4 Rh7 Re4 Ra7 Qa1 Nf7 Qea2 Nd7 Nh2 Nc7 Kb1 Nd2+ Kb2 Qh5 Rh1 Re2 Rfg1+ Kf2 Rg8 Qg4 Ng7 Kg2 Rf1 Nf3+
r2Q1R1Q/2R2Qqp/1r1b2b1/R3q3/B2r3n/4Br1r/PNq3N1/1nR1KR1k b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 d4 Kd6 g4 e5 g5 c5 f6 b5 f7 h3 f5 h2 f6 b3 g6 b2 g7 c4 Nh3 e4 Qd2 b4 Rg1 h1R Qe3 c3 Rg2 c2 Re2 b3 Qd2 e3 Nf2 Qc7 Qd1 Nc6 Qd3 Na7 Qc3 Ne7 g8R Ng6 Nh3 Nb5 Rf2 e2 Nf4 Na3 Nd2 b1Q Rg7 b2 Ng2 Rh3 Rf4 Be7 f8Q Bf5 f7 Nh4 Qe8 Be4 f8R Bg6 Qf7 Ra4 Ra8 Rg8 Ra7 Ra8 Ra5 Qb7 Qc8 Rb4 Qh8 Rbb3 Rg8 Rbf3 Rc8 Qd7 Rc7 Bf8 Qf5 Qg7 Qf7 Be7 Nb3 Bf8 Nc5 Be7 Nd3 Bf8 Kd2 e1R Rf5 Re4 Be2 Ref4 Bd1 Rg4 Ke2 Re4+ Be3 c1Q Bb3 Qc5 Ba4 Qbc2+ Ke1 Be7 Rd1 b1R Rc1 Rb6 Nb2 Nb1 Rf4 Rfg3 Rf1 Rf3 Rb7 Qc8 Rc7 Qf5 Rc8 Qfe5 Rf8 Kc7 d6+ Kb7 d7 Bd6 d5 Rd4 Qfg8 Kc7 d8R Kb7 Bb3 Kc7 Rc8+ Kd7 Ba4+ Ke7 Rfd8 Kf6 Rc7 Kf5 Qf7+ Kg4 Rg8 Kg3 Rf8 Bc5 d6 Kh2 d7 Bd6 Rf2 Kg1 d8Q Kh1 Rf1+
4qR2/K2b1pk1/nrB1q1N1/1Q6/Qb4n1/4R1nN/2BNNBnP/N1rn2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 c5 e4 a5 d4 g5 b4 a4 b6 f3 Ke3 f2 d6 a3 b7 a2 e5 g3 e6 g4 d7+ Ke7 d5 Kf6 d6 c4 Kd4 g2 Kc5 g3 b5 c3 e7 c2 e8B Ra4 b6 Be7 Bd3 f1N Be3 c1Q+ Bc2 Rhh4 Nh3 g1Q Bf2 g2 Nd2 Nc6 b8Q Rae4 b7 Ng3 Kb5 Nh6 Ka6 Nb4+ Ka7 Re1 Qg4 Na6 Qa4 Qa5 d8N Qd5 d7 Qe6 Nc6 Rb4 d8N Bd7 Nd4 Kg7 Ne2 Rb6 Nc6 Ng4 Ne5 Bb4 Ng6 Qd1 Rb1 a1N Rb3 Rf1 Re3 Qe1 Qe5+ Kh6 Qeb5 Kg7 Nc1 Qe2 Ncb3 Rc1 b8N Qee1 Nc6 Qe2 Be4 Nc2 Na1 Ne1 Bb1 Qgf1 Nd4 g1N Bd3 Ng2 Be4 Qee1 Bc2 N1e2 Rg1 Nc3 Ne2 Nd1 Qa2 Bc8 Bc6 Bd7 Qaa4 Qa2 Re8 Qe6 Rf8 Qe8 Nef4 Q1e6 Ne2 Nf4 Rh1 Qg2 Re1 Qg1 Nc3 Ng2 Re3 Kh7 Ne2 Kh6 Qba5 Kg7 Q5b5
1bQ3KQ/2rb1pRQ/3q1r2/3bRPN1/1r3B2/N1bn3B/3bBQ2/1qk2nQ1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 f4 a5 g4 e5+ Kh5 a4 c4 h3 b6 h2 f5 a3 g5 a2 g6 e3 g7 e4 d3 e2 b7 e1B c6 e3 c7 e2 c5 Qd6 c6 Ra7 Nc3 Nf6+ Kh6 Nbd7 b8Q Nc5 Qb6 Bd7 c8B Rc7 Bf4 Bd2 Bh3 e1R Nb1 Re4 Na3 Kc3 d4 Nd3 d5 Rb4 Nf3 Kb2 Re1 h1B Ng5 Nh5+ Re6 Bg2 Qf2 Ng3 Qdg1 Nf1 Ba6 Bh1 Re1 a1B Re5 Kc1 Rg6 Bc3 Bb5 Be7 g8Q Be4 Kg7 h5 Qh7 h4 Ba6 Ra8 Bc4 Ra6 Kg8 Bf6 Rg7 Be7 Bg4 h3 Bb5 h2 Bh3 h1Q Bc4 Rcb7 c7 Bd8 c8Q Bc7 Bb5 Bb8 Bc4 Rc7 Bb5 Qc5 d6 Bd5 Bc4 B7c6 d7 Qd6 d8Q Bd7 Qf6 Qe4 Qfh6 Qe1 Qh8 Qd1 Q6h7 Qc2 Bb5 Qb1 Nc4 Qe7 Na3 Rf6 Ba4 Qc5 Bd1 Qd6 Be2
2b1q3/q2nP2K/nN1b4/1RB2Np1/1b1N4/6Q1/Q1B2Nrk/q1QRbrbN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 e5+ Kd7 h5 a5 d6 Ke6 d7 c4 b6 g3+ Kf3 g2 h6 c3 b5 a4 d5+ Ke7 e6 Kf6 e7 Ke5 b7 c2 b6 a3 h7 a2 d6 Nh6 Nd2 Ra3+ Bd3 Ng8 Nh3 g1B Nf2 Na6 b8N Qe8 d8Q Rb3 d7 Rb2 b7 Nf6 Nde4 Bg7 Ng3 Rf8 Be3 c1B h8N Bd2 Bc5 Bb4 Rb1 a1B Qa5 Rd2 d8Q Nd7 Qa2 Bac3 Qc1 Rc2 Qda5 Be1 Q5a3 Re2 Bc2 Bf6 Kg2 f3+ Kh3 f4 Kg4 Rf7 Kh5 Rd2 Nfe4 f2 Kh6 f1Q Nf2 f3 Nc6+ Kf4 b8N Be5 Nd4 Bd6 Q3b3 Rf8 Nf7 Qd3 Qba3 Qe3 Kh7 Re2 Nh6 Rf5 Nfe4 Rg2 Nf2 Rf8 Nhf5 Rf6 Ng4 f2 Rb2 f1Q Nf2 Qc4 Q3b3 Qc3 Rb1 Qa1 Qd3 Ne5 Nd7 Rf8 Nb6 Nd7 Rh6 Rf6 Ngh1 Rf8 Re6 Rf6 Re5 Rf8 Nd1 Kg4 Qda3 Kh3 Ndf2+ Kh2 Rd5 Bbc3 Rb5 Bb4 Ne2 Qed4 Qf3 Qe3 Rd1 Qa3 Ned4 Qa5 Na4 Qc7 Qg4 Qa7 Nb6 Rg3 Nh3 Bgf2 Ne3 Bg1 Qf3 Rf4 Nef5 Rg2 Qd3 Rf1 N3f2 Qc3 Qde3 Qa1 Qg3+
Qnk5/2P1Qb2/Q1R1q2R/1NqRnRB1/1nnRrb2/p7/B1N3r1/1K1nb3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 Kd7 g4 h5 c4 a5 Kc2 e5 b4 e4 c5 e3 g5 e2 f6 e1B f5 a4 b6 h3 b7 h2 c6+ Kc7 g6 h4 f7 a3 b5 h3 g7 Qe7 f6 Ra4 Ne2 Nh6 g8Q Qc5+ Nbc3 d3+ Kb1 d4 Bg5 Bd6 f8R d2 f7 d3 Nd4 Bf4 Qe2 d1N Nc2 d2 Qc4 Nb2 b6+ Kd6 c7 Kd7 Qe2 d1N Qa6 Re4 Bc4 Ng4 Ba2 Nc4 Nb5 Nge5 Qh7 Rg8 Rd8+ Kc6 f8Q Be6 Qhe7 Bf7 Rd4 Rg7 Rf1 h1Q Rf3 h2 Rfd3 Nbd7 Qfa8 Nb8 Rh3 Qg1 Rh6+ Qd6 Rd5 h1N Rd4 Nhf2 Rd5 Nfd3 Rd4 Nbd7 b8R+ Kc5 b7 Nb4 Rd8 Nb8 Bh4 Rg2 Bg5 Nb6 Rd5+ Kc6 Rd4 Qe6 R8d5 Nbd7 Qaf8 Qe3 b8R Qc3 Qg8 Qc5 Rf8 Nb8 Qh8 Bg8 Rf5 Bf7 Qa4 Kb7 Qhf6 Qec6 Qa8+ Kc8 Qfd6 Nbc4 Qdf6 Qb7 Qfa6 Nd2+ Kc1 Ng4 Nc3 Qb6 Rb5 Be8 Rbd5 Ne5 Nb5 Qe6 Ne3 Bg6 Rb1 Bf7 Rb3 Bh5 Rc3 Bf7 Rc6 Ndc4 Qb6 Qa7 Kb1 Re2 Nc2 Rg2 Qa5 Qc5 Q5a6+
3BrBr1/1P2bNqB/1Bq2b2/1k5K/1R4np/3nNR1b/2QnB1bb/4R2Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Kd6 e7 c3 e8Q a3 b6 h4 b5 a2 b7 h2 b6 c2 g6 Rh5 g7 Qe7 Be2 Nf6 g8B Rg5 Qa4 Nc6 b8R Ng4 Nd2 Nb4 Bh7 Qg7 Nf1 Nd3 Ne3 Be7 Nh3 Bd7 Rb1 a1B Rf8 Re8 b7 Be6 Bb2 c1B Re1 Bc8 Qac2 h1Q+ Ng2 Kd7 d6 Bd2 Bc3 Kc6 Bb4+ Kb5 d5 Baf6 d7 Be3 d8B Bg1 d6 Bh2 Bb6 Be6 d7 Rg6 d8B Bc8 Bf1 Be6 Ke2 f3+ Kd2 f2 Ke2 f4 Kf3 Bf5 Be2 f1N Ng5 Bd7 Nf7 Rg5 Ke4 f3 Ne3 Rg6 Rb2 Bc6+ Kf5 f2 Qa1 Nd2 Qac1 f1B B4c5+ Ka6 Rb4 Bh3 Q1b1 Bcg2 Qbd1 Qh8 Bd6 Rg8 Bdc5 Bg7 Kg6 Bgf6+ Kh5 Qg7 Ng5 Bfe5 Rf3 Bc3 Nf7 Bcf6 Rd4 Kb5 Bb4 Bg5 Rdf4 Bef6 Bf8 Be7 Qdc1 Bgf6 Rb4+ Ka6 Rd1 Bf1 Rf5 Qc6 Rf3 Bfg2 Rh1 Bhe5 Qg1 B5d6 Qh2 Bb8 Rg1 Bf4 Qh1 Bh2 Rc4 Kb5 Re1 Bg5 Re4 Bgf6 Rb4+
2qqN1R1/nRNbq3/3b1r1N/Q2b1Rr1/6NK/B2QP3/1Npnrk2/2r2B2 b - - 0 1 illegal: No possible last move
K1R2r2/4n1QR/1N2k3/1nqRBq2/QRb2NrQ/b1R1P2n/1p3b1r/bB6 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 b5 Ke4 f5+ Ke5 c5 a4 g5 h4 c4 d4 c3 h6 g4 e3 b3 h5 g3 a5 c2 a6 f3 a7 b2 h7 b4 h6 b3 Na3 b1Q Ne2 g2 Rh4 g1B Nc4 f2 Nf4 Be6 Bd3 f1R Nb6 Qc8 Ra3 Na6 Bb2 c1B d6+ Kf7 d7 Bc4 d8R Qc5+ d5 Nc7 Qg4 Ne7 Rc8 Nb5 Be4 Rg8 h8R Bf2 h7 Rh1 Qg5 Rb8 a8Q Rh2 Qa4 Ra8 Bd4 Bb2 Bc3 Qf1 Bb1 Ba1 Rg4 b2 Qh4 Rg5 Rb3 Qh3 Rb4 Rg6 Rg1 Rg4 Rc1 Qc6 d6 Qc5+ Nbd5 Qf1 d7 Qd3 d8R Qc2 Nd3 f4 Rd6 f3 Nf4 Be1 Bd4 f2 Rd7 Qd3 Rc3 f1N Rdd8 Bf2 Rd6 Qa7 Nb6 Nd2 Rdd8 Qf1 Rd5 Nf3+ Ke4 Ng1 Be5 Nc7 Kd4 Nh3 Kc5 Qd3 Kd6 Qf5 Kc5 Qa5+ Kd6 Nb5+ Kc5 Ng6+ Kc6 Bc5 Kb7 Ne7 Rhd8 Bd6 h8Q Bc5 Rc7 Rc8 R8d7 Rf8 Rc8 Bd6 Ng6 Ke6 Qg7 Na7 Ka8 Qc5 Rb7 Nb5 Qgh6 Nc6 Rh7 Ne7 Qg7 Qc7 Rbb3 Ba3 Rb4 Qc5 Nf4+
1b4b1/n3Rr1n/2nQN1B1/R1BQ4/KNq2q1P/Qpq4Q/1q2rNQ1/2b3k1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 a4 Kf7 d4 Kf6 Kd2 Kg5 Kc2+ Kh4 Kb3 b5 f4 c5 h3 Kg3 h4 Kf2 a5 g5 a6 e5 d6 c4+ Ka2 e4 d5 b3+ Ka3 b2 f6 c3 a7 e3 f7 e2 f5 e1Q f6 c2 Nf3 b4+ Ka4 g3 d7 g2 d6 g1Q Kb5 b3 Ka4 g4 Ne5 g3 Qd5 g2 Ba6 Nc6 Bd3 Qc7 d8Q Be6 d7 Rh7 Na3 b1N Bg6 Bd6 f8Q Rf7 Qc8 Qh2 d8Q Qc3 Re1 g1Q Re4 Rb8 a8Q Qgg2 Ng4+ Kg1 Nf2 Qf4 Be3 c1B Nc2 Na3 Bc5 Nb5 Nb4 Nba7 Qg7 Be5 Q8d6 Rb7 Ra2 Re7 f7 Nf6 f8N Nh7 Ree2 Bg8 Qh3 Rf7 Ne6 Qc8 Qdf8 Bb8 Qfd6 Qcc4 Qb2 Rbe7 Qa3 Re8 Ng7 Qc3 Re7 Qcg4 Ra1 Qe2 Ne6 Qec4 Bd3 Qgg7 Bg6 Qb2 Qb7 Qgc3 Qh5 Rd8 Qd2 Rd7 Qa2 Ne5 Ka5 Rd4 Qbf3 Re4 Qd6 Ng4 Qhd5 Re2 Qfe4 Qb1 Qb2 Ne5 Ra4 Q4d4 Qa3 Qbb2 Qef3 Nc8 Kb5 Nc6 Ra5 N8a7+ Ka4 Qdc4 Qfg2#
1N1BB3/2Q4K/2b1n1BQ/5r2/2kr1nPr/2b1Rq2/p1rNR2N/Bq2qB1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 d5+ Ke5 h5 g4 f5 e4 a5 c4 f3 b6 f2 b7 a4 b3 f4 g6 d3 g7 f3 Nc3 d4 Rh3 h4 Bb2 d2 Qc1 d1Q Qh6 d3 Nb1 d2 Ra2 a3 Ba1 Nd7+ Kf5 Qe7 Kg6 Ngf6 b8N Bb7 g8B Bg7 e5 Nd5 e6 Bc6 Bh7 Bc3 b4+ Kd4 b5 Nc5 Rg3 h3 b6 h2 b7 h1N Rb2 Qh4 e7 a2 e8B Ne6 c5 Qe2 Rh3 d1R Nd2 Ra4 Rg3 Rc1 Rh3 Rc2 Rg3 Bb5 c6 Qe1 c7 Qh3 c8Q Bc6 Qc7 Ndf4+ Kf6 Qg2 Bhg6 Kd5+ Kf7 Rd4 Rh3 Rh7+ Kg8 Kc5 Qhg7 Rh4 Qh6 Kd5 Kh7 Qg3 Na6 Qg2 b8B Qb1 Ba7 Qe1 Bb6 Qg3 Bfd3 f1Q Nb8 f2 Ngf3 Qfg1 Bb5 f1R Nh2 Qf3 Ba5 Rf2 Bf1 Qb1 Bfd3 Qge1 Bf1 Qfd1 Re3 Qf3 Qg7 Kc5 Bd8 Kd5 Qc7 Kc5 Rb3 Kd5 Re2 Kc5 Ne4+ Kc4 Nd2+ Kd5 Qa7 Bb4 Na6 Nd3 Bgf7 Qg2 Be7 Rf5 Qc7 Qf3 Nb8 Nf4 Rbe3 Bc3 Bd8 Kc5 Bg6 Kb4 Nb3 Kc4 Nd2+
N1k1qnRr/r3B3/2n4b/RK1Brb2/3NQpN1/2qQ1R1P/4bq1R/Rb6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 Kd3 d5 b4 Kd7 e4 f5 c4 a5 h3 f3 c5 g4 b6 g3 b7 f2 c6+ Kc7 b5 f4 b6+ Kd6 h6 g2 e5+ Ke6 h7 a4 c7 Kd7 Ba3 Qe8 Nc3 Ne7 Nge2 g1R Bg2 f1B Rh2 Ra7 Ne4 Nbc6 b8R Bh6 b7 Ng6 Ra8 Nf8 Be7 a3 b8R a2 Rb3 Rh1 Qb1 Rg1 Bf3 Rg5 Nf2 Bg2 Ng4 Bh1 Kd2 d3 Kc3 d2 Qd3 d1Q Nd4 Qe2 Bg2 Qf2 Be4 Nb8 Kb4 Nc6+ Kb5 Bf3 Ra3 Be2 Ra5 Rf5 Rf1 a1Q Bg2 Qg3 Rf3 Qf2 Bh1 Qc3 Ra1 Bb7 c8N Kc7 e6 Re5 Nb6 Bc8 Ba3 Kb7 e7 Bf5 Bb4 Bd1 Ra5 Bc2 Ba3 Bb1 Bg2 Qd7 e8Q Kc7 Qg6 Qe8 Be7 Kb7 Rb8+ Kc7 Na8+ Kd7 Rb6 Kc8 Rba6 Re6 Nc2 d4 Qe4 d3 Nd4 d2 Ra1 d1B R6a5 Rg8 h8R Be2+ Qd3 Rg7 Rg8 Rh7 Rg3 Re5+ Bd5 Rh8 Rf3 Bd7 Qe4 Be6 R1a3 Bf5 Ra1
3nB3/1N1Nb2R/n3k3/K2nB1n1/Q1Rbp3/PbBQ4/Bqq1N3/rq4Br b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 c5 f4 e5 g4 b5 d6 h5 f6 b3 Kc3 c4 Kb4 c3 f7 h3 g5 e4 d5 h2 g6 b2 g7 h4 f5 c2 f6 h3 Nd2 b1N Ndf3 Qb6 Be3 c1B Ne2 Nc3 Bg1 Bb2 Qa4 Nh6 g8B Be7 f8B Nf7 Bg7 Nd8 f7 Qc7 f8B Na6+ Kb3 Qc6 Be5 b4 Rc1 Ba1 Bfg7 Qb5 Kc2 b3+ Kd2 b2 a3 b1Q Bf7 Rb8 Bg6 Bb7 Rc2 Bc6 Bh5 Q5b2 Be8+ Kc8 Bgf6 Bb5 Bg7 Bc4 Bgf6 Bb3 d7+ Kb7 d6 Nd5 Bc3 Rh6 Ne5 Q1a2 Nd4 Kb6 Bc4 Kc5 Ng6 Rb7 Nf8 Rh7 Be5 Rb4 Ke1 Qab1+ Rc1 Q1c2 Ne2+ Ne3 Bf6 Ba2 Bh8 Qbb3 Ng3 Nb7 Bcg7 Qg2 Rc3 Qgc2 Be2+ Kd5 d8N Rd4 d7 Rd1+ Kf2 Rh4 Bd4 Rh5 Bhe5 Rc1 Rc8 Bc3 Rc7 Ra1 Rc8 Qbb2 Rc7 Nd6 Nb7 Nf7 Bd6 Bb4 d8Q Bd2 Qdd7 Nd8 Bg4 Ba5+ Ne2 Bb4 Qdb5+ Bc5 Qd3 Ba7 Bb4 Bb6 Be5+ Bd4 Nd7 Rh4 Bf5 Bc4 Nb8 Rh7 Bfd7 Rh5 Bc6+ Ke6 Nd7 Rh8 Bb5 Bd5 Bc4 Rh4 Ba2 Bb3 Be1 Rh5 Rc4 Nd5+ Kf1 Rh6 Bf2 Rh5 Rg1 h1N Rg7 h2 Rh7 Ba7 Bfd4 Nf2 Bc5 Nh3 Bcd4 Ng5 Kf2 Nf6 Ke3 h1Q Bc5 Qbc1+ Kd4 Nd5 Bc3 Q1b2 Bb6 Qhd1 Bc5 Rh1 Bb6 Nab4 Bc5 Qdb1 Bb6 Bf6 Kc5 Be7+ Kb5 Na6 Bg1 Bd4 Ka5
7N/1b1bq1B1/q1QBqrBR/n4Qp1/2r1n1n1/nB1N3R/1K3BPk/1N4r1 b - - 0 1 illegal: No possible last move, all moves rejected
rRnr3b/Q2R2q1/1rk2q1R/5Pn1/p4QRr/3K1b1N/3BN1B1/3Rb1Qq b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 h5 g4 e5 f4 c5 d4 a5 b6 a4 f5 e3 g5 c4 g6 h3 d6 h2 d5 h4 b5 e4 g7 c3 b7 c2 b6 h3 Qd2 Qf6 Ra2 Na6 b8Q Ne7 g8Q Nc7 b7 Ne6 Qb4 Ng5 Ra3 Bg7 Bd2 c1Q Rc3 Qb2 Bg2 Rh4 Rc2 Bh8 Qa7 Qbc3 b8R+ Bb7 Rc1 Nc8 Rd1 Qg7 Qc4 Qcf6 Nc3 Rh6 Qcd4 Rh4 Qe5 Rh6 Qf4 Rg6 Ke1 e2 Kf2 e1B+ Ke2 e3 Kd3 Rh6 Nce2 Rh4 Qf3 Rb4 Qf4 Rb1 Qh7 Rb6 Qg6 Kd8 d7 Ke7 Qh4 Kd6 d8R+ Kc5 d6 Bf3 d7 Kc6 Nf4 e2 Rg8 Bg3 d8R e1R Rd7 Re8 Nge2 Rd8 Qg4 Be1 Qh6 Qh7 Rg6 Qg7 Rg1 h1Q Qhh4 h2 Rh6 Qe6 Nh3 Qef6 Qf2 Ra6 Qf4 Rb6 Bf1 Qg2 Q2e3 h1R Qed4 Qh2 Rg4 Qg2 Qf2 Rh2 Qg1 Qh1 Nf2 Rh3 Bg2 Rh4 Nh3
QbN3Q1/1n5b/n4K1B/1NnqpRR1/RN1k4/3q1rR1/4Pb2/Bqr2nR1 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Bg2 h3 Qd1 hxg2 b4 Kd7 h4 Kd6 d4 c5 Kd2 a5 Kd3 g5 Ke4 a4 f4 g3 h5 e6 f5 a3 h6 a2 h7 c4 f6 g4 b6 c3 b7 c2 b5 Nd7 b8N Ne7 f7 Qa5 b6 Nc6 b7 Nd8 Nc6 Nb8 Na7 Na6 b8R Nb7 Nh3 g1N Bh6 c1Q Nf4 g2 Qa4 g3 Nc3 Qd1 Nd3 Nf3 Nb4 Nh2 Rg1 Nf1 Qb3 Rg8 h8B Qd3+ Kf4 Bg7 Kg5 Be5+ B8g7 Bf4+ Kf6 Rf8 Qa4 Bd7 Qa3 Rc8 f8R Be8 Rg8 Bg6 Qb3 Rc6 Rbf8 Bh7 Bh8 Rb8 Rg5 Rc5 Rf7 Rf8 Qa4 Rcc8 Qe8 Rc7 Qa8 Qab5 Nb1 Rc1 Nc3 Qd7 Nc8+ Kc7 Rb1 a1N Rb3 Bd6 Ra3 Nb3 Ra4 N3c5 B8g7 Kd8 Bh8 Bb8 d6 Qc6 d7 Kc7 d8R+ Qd7 Rh1 g1Q d5 g2 Rh3 Qh1 Rhg3 g1B B8g7 Bf2 Rg1 Rh8 Rg8 Qb1 Rff8 Qb5 R5g3 Q5d3 d6+ Kd7 Kg5 Qg2 Rf5 Qgd5 Bd4 e5 Kf6 Qbb3 R8g5 Qbb1 Kg7 Ke6 d7 Rf8 d8Q Rf6 Qg8+ Kd7 Rh5 Rf8 Rfg5 Rf3 Rf5 Kc7 Kf6 Kd7 Rhg5 Kc7 Ne4 Kd7 Ba1 Kc7 Nc2 Kc6 Nb4+ Kb5 Nc3+ Kc4 Qh8 Kd4 Qf8 Kc4 Qg8 Kd4 Nb5+
B3rqRb/5R2/2NQQb2/1r1p4/Q1q1P1KB/Nb2q2n/4kQn1/1rQN1b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 c4 Kf5 b4 g5 h4 a5 c5 d3 h6 d2 e3 a4 h7 g4+ Kf2 Ke4 b6 f5 c6 a3 b5 a2 b7 g3+ Kg2 f3+ Kh3 g2 h5 f2 b6 f4 h6 f3 c7 Be7 Kg3 Nf6 Nh3 g1Q+ Bg2 Kd3 Na3 f1Q Qa4 d1R Nf2+ Ke2 Rh5 d6 Rf5 Re8 h8Q Nh5+ Kg4 Nd7 b8Q Bf6 h7 Nc5 b7 Ne6 Qf8 Nef4 h8Q Ra5 Qhh6 Be6 c8Q Bb3 Qe6 Nh3 Rf4 Re1 Nd1 f2 Rf5 Bh8 Rf7 N5f4 Qbc8 Qe7 b8N Rb5 Nc6 Qd8 Rb1 a1B Bb2 Qe7 Bf6 Be5 Bh4 Bef6 Rc1 Qd8 Rc5 Qc7 Rg5 Qb8 Nb2 Rb1 Rg8 Qc1 Qd8 f1B Nd1 Qc4 Qdd7 Qf2 Bd5 Qd8 e4 Ng2 Qc1 Qe3 Qda7 Qe7 Qh6 Qf8 Qb6 Qg1 Qf2+ Kd3 Qhf4 Bg5 Nd4 Be7 Qa2 Bef6 Ba8 d5 Nc6 Qa7 Qaf2 Qe3 Qg1 Ke2 Qfd6 Ne1 Qgg3 Ng2 Qf2+
1R1k1B2/1r2bQ2/3N2bq/q1P1QBQq/n1N2n2/qn4pr/3Q1QR1/1K4Rr b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 f4 e5 h4 g5 c4 d5 Kc2 a4 b4 d3+ Kb2 d2 f6 d4 f5 e4 h5 e3 h6 g3 b6 g2 b5 d3 c5 g4 b7 e2 h7 e1N b6 g3 Ra2 Nh6 Nf3 g1Q Ne5 Qe3 Rg1 Ra7 Nc4 Be7 Nba3 Nd7 b8R Rb7 Nb5 a3+ Kb1 Qf4 Qe2 d1R Bh3 d2 Qe5 Qc7 f7+ Kd8 f6 Nf5 Nbd6 Nd4 Qg5 Nb3 Rc2 Nd3 Be6 Ra7 b7 Qa5 Bg4 Nb6 f8Q+ Kc7 f7 Na4 Qfg8 Bf5 f8Q Bg6 Bc8 Rf1 Qfh6 d1Q Qf7 Kd8 Rcg2 Qf6 Qd2 Qh5 Qhg5 Qg7 Qff2 Qgh6 Qf7 Re8 h8Q a2+ Kc2 a1Q Qhe5 Q1c3+ Kb1 Rh8 Qee1 Rh7 Bb2 Qcb4 Bg7 Qa3 Bf8 Rh8 Ra8 Rh7 b8Q Rc7 Qdf2 Rb7 Qfd2 Rf4 Qef2 Rh4 Nb5 Rh8 Qbe5 Rh3 Nbd6 Rh1 Rd1 Qe2 Qfe1 Qg7 Rc1 R8h3 Rb8 Qh5 Qef2 Qgh6 Rcg1 Nf4+ Bf5+
1qb1kqBn/3r4/1RQ1Q1N1/2pqr3/nbrNQQB1/2R1r1B1/3K3P/4nQ2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 a5 b4 c5 d4 g5 d6 f5 b6 f3 b7 f4 b5 f2+ Kd2 f3 b6 g3 d5 g4 e5 g2 e6 a4 e7 a3 Be2 f1Q Nc3 f2 Nh3 g1Q Nb5 a2 Nd4 g3 Bg4 g2 Rb1 a1N Nf4 Ra4 Ng6 Nd7 b8Q Rh5 b7 Nb6 Qc7 Nh6 b8Q Re5 Qc6+ Qd7 Qe2 Bg7 Qe4 Rc4 Qbc7 Na4 Rb6 Nc2 Bb2 Kf7 Bc3 Qf5 d7 Ne1 d8Q Qe6 d6 Qd5 d7 Bf6 Qb8 Bg5+ Kd1 Bd2 Ba1 Bb4 e8B+ Kg7 Qg5 Nf7 d8Q Nh8 Qdd6 Kg8 Bed7 Kg7 Qc1 Kf7 Ne7 Kf8 Bdf5 Kf7 Bh7 Kf8 Ng6+ Kf7 Qcb7+ Ke8 Qe6+ Kd8 Qcf4 Bc3 Rb4 Nd3+ Kc2 Rg5 Nb3 Qe5 Qg3 Rf5 Qf6+ Ke8 Qgf3 Qe6 Qed4 Qb6 Rb5 Bb4+ Bc3 Rd5 Bg8 Rd7 Qbc6 Qb7 Rb6 Qa7 Qbf4 Qb8 Qc1 Qd1+ Kb1 f1R Be1 Qd2 Bg3 Qgf2 Qfd1 g1R Qfe6+ Kd8 Qde2 Qf8 Qf4 Re1 Q2e5 Qg2 Nd4 Qd5 Q5f5 Re5 Q5e4 Rg2 Rf1 Rg1 Rf3 Re1 Qd1 Re2 Qf1 Ne1 Rc3 Re3 Kc1 Rd3 Q6f5 Re3 Kd2 Ke8 Qfe6+
2q1B1QN/2N1RnQ1/3N1r1b/1rp2q2/1B1NR1br/2KP4/1rn4q/N2b1B1k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 Kd6 b4 Ke5 d6 a5 d3 f5 Kd2 h5 g5 c5 d7 f3 b6 Kf4 g6 Kg3 g7 h3 e5 f4 b7 a4 b5 f2 e6 h4 e7 f3 e8B a3 b6 h2 Qa4 a2 Qa3 h3 Bb2 Na6 b8N Rh4 b7 Nh6 g8N Nf7 Nh6 Nb4 Kc3 Ra5 Nd2 Rb5 Nb3 Nc2 Re1 a1R Re4 Ra2 Na6 Qc7 d8N Bg4 Na1 Qc8 Bc1 Rab2 Qb4 Bg7+ Qd4 Bf8 Nc7 Bg7 Bg2 f1Q b8Q f2 Nf3 Bf8 Rg1 h1B Bd2 h2 Nb7 Bg7 Nd6 Bf8 Ng8 Bh6 Bh3+ Bg2 Qg7 h1Q Nd4 Kh2 Ne7 B2f3 Ng6 Bd1 Nh8 Qhg2 Re7 Qg3 Rg2+ Kh1 Be1 Qf4 Rg3 Qff5 Rge3 Qg2 R3e4 f1R Qa8 Qh2 Qd5 Rf2 Bf1 Qfe6 Qdg5 Rf6 Qg8 Qf5 Q5g7 Re6 Kc4 Rg6 Bb4 Rf6 Kc3
4N1qN/1bQr2Q1/1r1n1nR1/bnp1K3/b1BN4/2P1R3/1q1B1q2/1BkBB2b b - - 0 1 illegal: No possible last move
1b4r1/3QRq2/1kNR1nb1/1p2q3/Qn2R1Pq/nR6/B3r1Rq/b1N1QKB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 a4 b5 f4 h5 g4 e5 d6 Kc6 d5+ Kb6 d7 c5 d6 c4 f6 b3 f5 h3 f7 e4 f6 b2 Na3 b1N Nc2 e3 Ra2 h4 Ne2 h2 Ncd4 c3 Nc6 Bh6 f8R h3 f7 c2 Re8 Bf4 f8R Na6 Re4 Qe8 d8R Nf6 d7 Nb4 Rf7 Bb8 Rfe7 Rg8 Ra3 Ra7 Rb3 Na3 Rg1 h1Q Rg2 h2 Bb2 c1Q Bd4+ Qc5 Nc1 e2 Bg1 Qf7 Qd2 Rc7 Qe3 Rb7 Kf2 e1B+ Ke2 Ka6 a5 Qe5 Qg3 Bd2 Qe1 Bc3 Kf2 Rb6 Bc4 Ba1 Kf1 Kb7 a6+ Kc7 Na7 Re6 Nc6 Bb7 a7 Bc8 Rd4 Kb6 a8Q Bb7 Qa4 Ba8 Na7 Be4 Nc6 Bg6 Re4+ Qc5 Rd4 Re2 Rde8 Qe5 d8Q+ Qc7 Qd7 Qd6 Rf2 Qe4 Rg2 h1Q Be6 Qdh2 Rd6+ Qd4 Bc4 Qh4 Re4 Q1h2 R8e7 Qc5 Rh3 Qd4 Ba2 Qc5 Rhe3 Qce5 Rb3+
1R1BNrb1/Rnn4N/2nNr1Q1/Np1Pr3/5rBb/5qNk/1BQ3qq/K7 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 e5 Kc2 b5 Kb2 c5 g4 h5 f4 c4 a4 e4 g5 c3+ Ka2 h3 g6 h2 a5 e3 f6 c2 d6 Ke6 f7 Kf5 d5 h4 d7 h3 g7 e2 a6 Kg4 a7 Qh4 d8B Ne7 g8N Na6 f5 Rh6 f6 Nc7 Bb2 Nc6 Nc3 Be6 Ne4 Be7 f8Q c1N+ Kb1 b3 f7 Qg3 Qe8 Bh4 f8N Qf3 Nh7 e1R Ne7 Bg8 Ne2 Re6 Nd6 Nd3 Ng3 R1e5 Qc2 Nc5 Be2 Nb7 Ra6 Rc8 a8N Rb8 Rc1 h1Q Ka1 h2 Ra7 Qg2 Qeg6+ Kh3 Rg1 h1Q Re1 Qe3 Bh5 Qhh2 Rf1 Qee4 Rf8 Qef3 Re8 Nb4 Nc6 Rc8 Na5 Nc6 Nb6 Ra8 Nd7 Rb8 Bd4 Rc8 Ndf6 b2+ Ka2 b1R Bb2 Rd1 Rf8 Rb8 Nfe8 Rd4 Ka1 Rf4 Rf7 Na6 Rc7 Ra8 Rc8 Nc7 Rb8 Rf8 Ra6 Na7 Nac4 Nc6 Ra2 Ra4 Ra3 Rb4 Ra7 Rf7 Na5 Rf8 Ka2 Rbe4 Ka1 Ref4 Bg4+
1n1R2N1/1B1Q1Qq1/1KQq4/pNB3qn/1r2k3/1bR1Nr1P/1b2N2b/3n2bN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 c5 e4 f5 b6 a5 b5 g5 h3 f3 Ke3 c4 e5+ Ke7 d6+ Ke6 b7 Kd5 b6 f2 d7 g3 e6 c3 e7 g4 e8N g2 Nc7+ Kd6 d5 Ke5 d6 c2 Ne2 g1N Bg2 f1Q Ng3 Rh4 Nd5 Qb5 Ra3 Nf3 Nbc3 Qe8 d8Q Qg6 d7 Ng1 Nce2 Bd6 Qf8 Nf6 d8Q Be6 Qc7 Qg7 Qff7 Nh5 Qc6 Qa6 Bd2 c1B Rc3 Bb2 Be1 Qb5 Bf2 Qb4 Kd3 f4 Bc5 f3 Rh2 f2 Nh1 Qa3 Kc4 f1Q Kb5 g3 Be4 g2 Qd2 Na6 b8N Qf4 b7 Qfg5 Kb6 Rf4 Qd3 Rf3 Qdb5 Qb4 Qcd7 Qd4 Qbc6 Ra7 Ne7 Bb3 Nd5 Nb4 Na6 Qd3 Qb5 Nc6 Nac7 Nb8 Qbc6 Qdd2 Nb5 Qd1 Nf6 Qd3 Ng8 Qd1 Nf4 Ne2 Nd5 g1B Rg2 Qdd2 Rg3 Qd4 Rd3 Nc3 Rd1 Na6 b8N Rc7 Rd3 Nd1 Rc3 Rc8 Rg2 Rf8 Rd2 Rf4 Bg2 Qd3 Bf3 Rb4 Ndf6 Re8 Qcb7 Qdf5 Qd8 Q5h6 Nc6+ Kf4 Nd4 Nb8 Ne2+ Ke5 Qbc7 Qfg5 Bb7 Kf5 Qc6 Re3 Qde8 Bdh2 Rd8 Rf3 Qed7+ Ke5 Nd5 Ke4 Nef4 Qhg6 Ne2 Qd6 Ne3+
BK1BQ1R1/2nr4/7P/B3nN1b/N1R1NrQb/Bn5r/2k1qp1q/r3B1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 g4 Kf4 f2 b6 g2 Ne2 g1Q Rh4 c3 Bg2 g3 Nd2 c2 Nc3 a3 Qg4 a2 Na4 Nc6 b8N Nge7 b7 Ne5 Nc6 Rh7 b8B+ Qc7 Bb2 Qh2 Rg1 a1R Bh1 Ra5 Ba3+ Rc5 Ba7 c1N Bb6 Be6 Ba5 f1R+ Bf3 Qe2 Bc3 Ng8 Ne7 g2 Ba5 Nb3 B5b4 Kd7 d6 Bf7 d5 Bh5 Ba5 Nf6 Bc3 Nc4 e5 Ne8 Ne4 Bg7 Be1 Bf6 Nc6 Qb8 Nd4 Nc7 e6+ Kd8 e7+ Kd7 Rgh1 g1B R1h3 Rg7 Rg3 Ne5 Rg2 Rc3 Rg3 Ke8 d7+ Kf7 d8B Re3 d6 Rf2 Nc2 Ke6 e8Q+ Kd5 d7 Kc4 Nd4 Kd3 Rg2 Nb5 Bda5 Nc7 d8B Rd7 Qh3 Be7 Rg8 Bf6 Qg4 Rf1 Rh2 Be7 Rf2 Bh4 Bg2 Rh3 Bf3 Qd1 Rc2 Qe2 Rc4 Bg3+ Kg5 f4 Kf6 Rf2 Bh1 f3 Nf5 Bh4+ Ng5 Rd4 Ke7 Rf4 Kd6 Rg2 Ne7 f2 Nf5 Rgg3 Ba8 Rg2 Rd4+ Kc2 Ne4 Rgg3 Rb4 Rd3+ Rd4 Nf3 Kc6 Rdd1 Rb4 Rd7 Rc4+ Kd1 Ned6 Na6 Rh8 Rd4 Ne4 Qh2 Rg8 Nc7 Kb7 Ne5 Nec3+ Kc2 Kb8 Rf4 Ne4+
Nr2R1N1/1b3NR1/Qq5P/1n1NB1q1/2Bb1rR1/q1p2Q1K/b3nq2/2Nn2k1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 e4 Kc5 b4+ Kd4 h4 f5 h5 g5 e5 a5 d6 c5 b6 f3+ Kg3 f4+ Kh2 a4 d7 f2 h6 g3+ Kg2 a3 e6 f3+ Kh3 g2 b5 c4 b7 a2 b6 Na6 b8Q Bc5 d3 Nc7 e7 Nb5 e8R Nf6 b7 Ng4 Bf4 Qb6 d8N Ra4 Be5+ Ke3 Qd6 Bd4 b8N Bb7 Ne2 g1Q Nbc3 Rf8 Rc1 a1Q Nf7 Qa3 Nd7 Ra8 Nf6 Rb8 Nh8 Rf7 Ng8 Rf6 Nf7 Rf4 Bg2 f1N Nd5+ Kf2 Rc2 Ng3 Bf1 c3 Nc1+ Ne2 Qc6 Bc5 d4 Ne3 Qd3 Nd1 Rb2 Qba7 Qa6 Qb6 Rb3 Bf8 Rb4 Bg7 Rc4 Bh8 Rc6 Bg7 Rg6 Bh8 Rg7 g4+ Kh4 g3+ Kh3 g2 Qf5 Ng3 Bc4 Qe1 Rh2 Kg1 Qe4 f2 Qf3 f1B Nb4 Nc7 d5 Bd3 d6 Qef2 d7 Nb5 d8N Bb1 Nd5 Ne2 Ne6 Ba2 Nec7 Qg6 Na8 Qgb6 Rg6 Bg7 Bc7 Bd4 Be5 Kf1 Rg4 g1Q Rh4 Qg5 Rg2 Qgd8 Rg6 Qg5 Rg7 Kg1 Rg4+
1n6/BR3k2/2Q2Npb/1rRq4/1brqP1Rq/3R1R1b/B1nbn3/QK2N2B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 f5 b4 a5 h4 d5 e4 g6 c4 g3 Kc2 g2 e6 a4 c5 a3 h5 f4 c6 a2 b6 f3 b7 f2 h6 Bd7 h7 Bd6 e7 Bg3 b5 Be5 c7 Bg7 c8B Nh6 b6 Ng4 Rh4 Bh6 Nc3 Ra4 Nf3 g1B Ne1 Rc4 Bg2 f1N Be3 Kf7 Bh1 Ng3 Rc1 a1B Kb1 d3 e8R d2 Qa4 d1Q Qc6 d4 Nd5 d3 Nf6 Qe7 Rd8 d2 Bc5 Ne3 Rg4 Be6 Rd3 Nc2 Bd4 Re8 h8Q Ne2 Bd7 Bc3 Bc8 Na6 b8R Bb4 b7 Bge3 Ba7 Rd8 Ra8 Rd5 b8R Rb5 Rb6 Beg5 Rab8 Bf4 R8b7 Nb8 Rbd7 Bf5 Rf3 Bfg5 Rdd3 Qd8 Rg1 Bh3 Rg4 Qd5 Nd7+ Bf4 Qa1 Qg5 Nf6 Qh4 Ng2 Qg1 Ne1 d1Q Bf5 Bfd2 Be6+ Kf8 Bd5 Qd4 Bf7 Rc3 Ba2 Rc4 Rf5 Kf7 Rc5 Bdc3 Rf3 Q1d2 Rd1 Qdg5 Rd2 Qgd5 Rdd3 Bcd2 Rb7+
1B1QBN1R/3B2q1/n2q1p2/rq6/b1r1B1nn/1RP1bb1R/2Q2B1N/4Knk1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 e4 Ke7 g4 Kd6 b4 Ke5 b6 a5 b7 d5 b5 h5 g6 f3 g5 h4 g7 f2+ Ke2 d3+ Kd2 Kf4 b6 Kg3 g6 a4 e5 h3 e6 h2 e7 d4 e8B a3 Ba4 a2 Nc3 Qd6 Bg2 f1N+ Ke1 Rh4 Bb5 Na6 b8R Bb7 Nd5 Nh6 g8Q Ng4 Be4 Bh6 g7 Be3 Nf3 Kg2 Rb1 a1Q Be8 f6 c3 Qb2 Qh7 Qb5 g8B Qc7 Rc8 Qg7 Nc7 Bc6 b7 Bd5 Qc2+ d2+ Kd1 Bb3 b8B Ba4 Ne6 Kf2 Nf8 Ra7 Rg1 h1N Qh8 Nhg3 Rb3 Nf5 Rh1 Ra8 Rh3 Kg2 Nh2+ Kg1 Qd3 Ra7 Ke2 d1B+ Ke1 Bf3 Be6 Ra8 Qe2 d3 Ba3 Ra7 Bad6 Ra8 Bg3 d2+ Kd1 Rh5 Qg8 Nh4 B6d7 Rc5 Qd5 Rc4 Qd6 Nc5 Qc7 Ra5 Qd8 Bh1 Qd3 Na6 Qc2 Bg2 Ke2 Bf3+ Kd3 Bg2 Rc5 Ng6 Rch5 Nh4 Rh8 d1Q+ Qd2 Qb1+ Ke2 Qd3+ Ke1 Bf3 Qc2 Qd6 Bf2+
5Q1Q/QrB1n2Q/1B2pR2/bk2P3/1q4rQ/1R1rnbbK/b1q2qNB/7N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf1 Kd7 Kg2 c5 h4 f5 d4 a5 b4 g3 e4 e6 e5 c4 h5 f3+ Kh3 g2 d6 f2 g6 f1Q g7 a4 b6 Kc6 h6 c3 d7 c2 d5+ Kb5 b7 a3 h7 f4 d6 a2 Nf3 Qe7 d8Q Nd7 b8B Bb7 Bc7 Ndf6 d7 Ra4 Qe1 Ng4 Qh4 Ne3 Ne1 g1B+ Ng2 f3 Nd2 f2 Rb1 a1R Ne4 Bh2 Ng3 R1a3 Rb3 Bf3 Bd2 Qe2 Rf1 c1Q Nh1 Qc2 Qa8 Ra7 d8B Rb7 Qa7 Bg3 Bb6 Qd6 Bdc7 Ne7 g8Q Qe1 Qg7 Rg8 h8Q Qdc5 Qgh7 Rg4 Rb1 Rd3 Rb3 Kc4 b5 Qb4 Ba5 Bh6 b6 Kb5 Bc1 N3d5 Qf8 Bd2 Qfh8 Bc3 Bf4 Ne3 Qf8 Rb8 b7 Qed2 Rfb1 f1B Bab6 Qf2 Qfh8 B1e2 Rf1 Bd5 Qf8 Bef3 Qfh8 Rbg8 b8Q R8g7 Qbf8 Bd2 Ra3 Ba2 Rc3 Qd6 Ra3 Ba5 Rb3+ Qb4 Q4h6 Bh4 Bh2 Bg3 Qh4 Nc8 Bb8 Rb7 B8c7 Ne7 Q4f6 Qfe2 Nh4 Bc6 Ng2 Qed2 Rf5 Bf3 Qfh4 Qf2 Rf6
n1N3qn/qqr4b/1B1PB3/2BR2pK/q2R4/QQN3r1/r1b1B1Bb/2Q3k1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Ke7 Kg3 Ke6 b4 Kf5 h4 Ke4 d4 g5 h5 f5 e6 c5 b6 a5 e7 c3 e8B c4 h6 c2 d5 c3 h7 a4 b7 a3 b5 a2 b6 Ne7 Ba3 Ke3 Nh3 c1Q Bc6 c2 Nc3 Nd7 b8B Qb1 b7 c1R Bc7 Ng6 b8Q Qb7 Nf4 Bd6 Rh4 Nb6 Bd7 Rc2 Bg2 Qg8 Be6 Ra4 Qe1 Na8 Rd1 a1Q Qh1 Be5 d6 Rc1 Bb4 Ra2 Rd5 Bd7 Qh3 Ba4 Ba3 Bc2 Bc5+ Bd4 B7b6 Rg1 Kh2+ Kf2 e4 Qd1 Qd3 g3+ Kh3 Qa1 e5 Rc1 Qc7 Kg1 Qb5 Bf2 Qb3 Bd4 Nd3 f4 Kg4 f3 Nb4 f2 Kh5 f1B Nc6 Bfd3 Na7 Be3 Rhd4 Bf4 Nc8 Bf5 Bf1 g2 Be2 Bh2 Qc6 Qb1 Qa3 Qb3 Qb5 Qa4 Qbb2 Qgf7 Qbb3 Re8 h8Q Qg8 Qf6 Nh8 Qf8 Bh7 Qf4 Re7 Qd2 Rf1 Qdc1 Rd7 Bh3 Re1 e6 Rc7 e7 Rd1 e8B Re1 Bf1 Re3 Be6 Rg3 Bg6 Kh1 Be8 g1Q Beb5 Qe3 Bbe2 Kg1 Bf7 Qe7 Be6 Qed7 B2g4 Qaa7 Bge2 Qda4 Bg2+
1K1R4/1n3k2/1BP2n1q/QNr2Nb1/2n2R2/RnB1pBrB/1Qq3b1/bBr5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 a5 c4 d5 f4 h5 g4 e5 b4 a4 f5 d3 Ke3 h4 g6 d2 c5 h3 g7 a3 g5 h2 b6 a2 f6 Be6 b5 Rh6 b7 Rh3+ Nf3 Rh6 g6 Rh5 c6 Bd6 b6 Be7 Bb2 Qd6 Bh3 Nd7 b8B Ra3+ Bc3 Nc5 b7 Nb3 Rf1 h1R Qe1 d1Q Ba7 Qc2 Bb6 Bg4 Nd4 Bf3 Qd2 Bg2 Rf4 Rc1 b8Q+ Bd8 Nf5 d4+ Ke2 d3+ Ke3 Rg5 Qa7 Ra5 Na3 Rc5 Nb5 Be7 Qf2 d2 Qa5 Bd8 Nh6 Rg4 f7+ Ke7 f8R Nf6 g8B Rg3+ Rf3 Qe6 g7 Qd6 Bh7 Qe6 Rb1 a1B g8B Qd6 Bd5 Qe6 Ke2 e3 Rf4 e4 Rb2 Qd6 Ra2 Qe6 Ra3 d1N+ Bd2 Qd6 Rh8 Qe6 Nf5+ Kf7 Re8 Nb2 Rg8 Qb1 Bc3 Nc4 Rh8 Nd7 Rg8 Bg5 Rd8 Nf6 Qe1 Nd6 Qd2 Nb7 Qb2 Nd2 Bb3 Nc4 Bd1 Qa2 Ke1 e2 Kf2 e1N Bf3 e3+ Ke2 Nc2 Kd3 Ne1+ Kd4 Nd3 Ne7 Nde5 Bb1 Nd2 Nf5 Nec4 Rg4 Nd5 Rh4 Qh6 Rf4 Nb3+ Ke4 Ncd2+ Ke5 Nf6+ Rd5 Nd8 Kd6 Nb7+ Kc7 Nc4 Rd7+ Kf8 Rd8+ Kf7 Qe2 Qc2 Kb8 Qd1 Qa2 Qc2 Qb2
Q1br1k1R/8/n1p1Q2r/1Nb1R1qq/2BBR1n1/n1Pr2Qq/Rn5N/K1R5 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 a5 Kc3 h5 f4 d5 g4 a4 b4 h3 Kb2 h4 f5 e3 b6 d4 c3 c6 f6 d3 b7 h2 e6 h3 f7+ Ke7 g5 e2 b5 e1Q b6 d2 g6 Na6 b8Q Qe5 g7 Qb5+ Qb3 d1Q b7 Qc4 Be3 Rh6 Na3 Nf6 g8R Qh4 Bd4 Ng4 Nb5 a3+ Ka2 Qd3 Rh8 Qh5 Qg3 Qdd5 b8Q Qdg5 Rc1 Qf3 Kb1 a2+ Ka1 Qff5 Bc4 Qf3 Kb2 a1N Rh7 Nc2 Ra1 Qff5 Nf3 Na3 Rhc1 h1R Nh2 Rd1 Ra2 Rd2+ Ka1 Rd3 Nf3 h2 Qb7+ Nc7 Qa6 h1N Nh2 Nhf2 Qa5 Bg7 f8R Nd1 Rfh8 Rb8 Qa8 Na6 Rd8 Qf3 Rd5 Nb2 Re5 Qg2 Re4 Qgh3 Re5 Ke8 e7 Bf8 Re4 Kd7 e8R+ Be7 Bf7 Bc5 R8e5 Kd8 Be6 Ke8 Bc4+ Kf8 Qd1 Rb7 Qde1 Rd7 Qe2 Nf2 Qeg4 Rd8 Qe6 Ng4 Rh8+
2B5/B1nK2bP/1b2R1Br/1N2q3/Nnq2BQ1/1Q3B1p/k2R4/1brbnq1Q b - - 0 1 illegal: No possible last move
nNbN1N2/bNn3P1/BN1p2q1/n2qR3/1n2r2b/1Rr2QQ1/3k1K1B/3qB3 b - - 0 1 illegal: No possible last move
3R1b2/2BB2p1/Nqb3K1/N1q3Nr/rQB3Q1/3nN2q/1Pb2n2/Rrq1k2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 d4 c5 e4 a5 b6 f5 b7 g3+ Kf3 c4 h5 c3 h6 g2 h7 a4 Ne2 g1Q Ng3 c2 Nd2 a3 Bc4 a2 Ndf1 Bd7 Ne3 Nc6 b8N Qg5 Na6 Nb4 Bd2 Nd3 Ba5 c1Q e5+ Ke7 e6 Kd6 e7 Bc6 e8B Nh6 Rh4 Ng4 Nh1 Ngf2 Bd7 Qd8 Qb3 Qb6 Qb4+ Qc5 Rh2 Qg6 Rg2 Qf6 Rg1 Qd8 Rd1 Qb6 Kg2 f3+ Kg3 f4+ Kh4 Ra7 Kh5 Ra8 Kg6 Ra7 Rb1 a1R Rd2 Ra4 Ra1 Ra8 Rd1 Re8 Rd2 Re5 Rd1 Rh5 Rd2 Ne4 Rd1 f2 Rd2 f1Q Rd1 Rg8 h8N f3 Rd2 f2 Nf7+ Ke7 Rd1 Qh3 Ng5 f1B Rd2 Nef2 d6+ Kd8 d5 Rgh8 Bc8 Bg2 d7 Ke7 d8N Kd6 Nb7+ Ke5 d6 Kf4 d7 Bgd5 d8Q Be4+ Bf5 R8h7 Qd7 Rh8 Ne6+ Kf3 Rd1 Ke2 Ng5 R8h7 Rd2+ Ke1 Qd4 Bf3 Qg4 Bd1 Bfe6 Bc2 Bd7 Qbb5 Bd8 Qbb6 Bc7 R7h6+ Kf7 Re6 Na5 Re4 Kg6 Rf4 Qg3 Rg4 Qh4 Rg1 Qg4 Qb1 Bd5 Nc1+ Nf5 Kf1 Rd4 Ncd3 Bc4 Qe1 Bde6 Qb1 Rd8 Qd1 Qd4 Ke2 Qd7 Qd2 Qd4 Rb1 Bd7 Qc1 Qg4+ Kf1 Qb5 Ke1 Ne3 Rh8 Qb3 Rh5 Qb4+
1n1rr2r/1Nk1r1pN/2Bq4/R1q5/b2nb1B1/bP2NRQN/1N4Q1/n4KB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Kd7 d4 a5 h4 f5 e5 c5 e6+ Kc7 e7 g3 e8B c4 b3 f3 h5 g2 h6 f4 b6+ Kb7 d6 a4 h7 c3 d5 c2 d7 a3 d6 a2 Nh3 g1N Nd2 Qc7 Nc4 Ne2 Be3 c1Q Bg1 Ne7 Nb2 Nd4 Be2 f2+ Kf1 Q1c5 Qd2 Nc2 Bg4 Nf5 d8Q Nfd4 d7 Q5d6 Qh4 Qcc5 Qg3 Kc6 b7 Kc7 d8N Bd7 Rh2 Ba4 Bc6 Be7 Qe2 Re8 h8N Ra7 Rb1 a1R Ng6 Ra8 Re1 Rd1 Ne5 Na1 Nec4 Rd3 Ne3 Rh8 Kg2 f1B+ Kf2 Bg2 Rf1 f3 Rh1 Na6 b8N Bf8 Nd7 Nb8 Nf6 Ra7 Ned1 Re3 Qc2 Re8 Nb7 Be7 Nh7 Ra8 Ke3 f2 Kd3 Bf8 Ne3 Be4+ Kd2 Na6 Kd1 Rad8 Qe2 Be7 Qef3 Nb8 Qfg2 Ndc2+ Ke2 Bf8 Rd1 f1R Rd5 Rf7 Rh2 Rfd7 Kf1 Rde7 Rf5 Nd4 Rf3 Qc2 N3g5 Qc3 Rh5 Qc5 Nh3 Qg5 Na5 Qdf4 Bf5 Red7 Bb5 Ba3 Bg4 Qd6 Nb7 Rde7 Bc6 Qa5 Rc5 Qa7 Rb5 Qc5 Ra5
1BbRbRK1/3Q1pnn/5rNR/1Q2P2r/Nb4rR/1q4q1/R1Bn1B2/1rk5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 a5 g4 h5 d4 c5 d6 h3 g5 h4 g6 a4 d5 f3 d7 h2 b6 f2 b5 h3 d6 a3 g7 a2 b7 Rh6 b6 Ne7 g8R Nf5 Bg5 Ra4 Bg2 f1N e4 Rf6 Bf4 Ng7 Be3 Qc7 d8R Nd2 Nc3 Kd3 Nf3 c4 Bf2 Be7 Qf1+ Kc2 Rh8 Kb2 Rh4 Nd7+ Kd5 Kc2 b8R Nf8 d7 Qg3 e5 Bb4 b7 Nh7 Rf8 Kb2 d8Q Kc2 Qd7 Kb2 Re1 a1Q Re2 Qa2 Ra8 Qb3 b8B Kc2 Rh6 Kb2 Nh4 Kc2 Be4+ Kb2 Rg1 h1B Ng6 h2 Rd8 Bg2 Rh1 Bh3 Bc2 Bg4 Qb5 Bgd7 Qh3 Be8 Rh4 Rf3 Qhd7 Rf6 Ra1 h1R Ra2+ Kc1 Rh6 Rc6 Re4 Rh5 Rg4 Rf6 Rh4 Raa6 Na4 Rf4 Rh3 Rg4 Rh2 Rf6 Rh4 Rff5 Kc6 c3 Kc7 Ba5+ Kd6 Rf6+ Ke7 Bb4+ Qc5 Ng5 Kf8 Nh7+ Kg8 Qh2 Qb6 Qg3 Bd3 c2 Qc5 Kd1 Bf5 c1R Qcb5 Rb1 Bc2+ Kc1 Qd4 Bc6 Rf8 Be8 Qdd7 Bb7 Bba7 Ba6 Rd8 Bc8 Bb8
2QKb2B/qq2Qpq1/B3NQR1/nP3R1q/5n2/NrB2nb1/1r2Q2k/3bQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 g4 a5 b4 h5 d4 c4 g5 f3 g6 h3 b6 h4 b7 f2 e3 h2 b5 h3 g7 a4 Na3 c3 Qe2 c2 Bg2 f1B Bd2 c1N Nf3 Qf6 Ng5 Bd7 Rg1 h1Q Bc3 h2 Ne6 Nh6 g8Q Be8 Bf3 Nc6 Rg6 Ra7 b8B+ Rc7 Bg2 Ng4 Rb1 Qe7 Kf5 Na5 e4 Ne5 Rb2 Qd7 Kf6 Nf3 Qe1 Rh5 Rf2 Be2 Ba7 Rh3 Bb6 Ng1 Rf5 Bd1 Qh8 Rd3 Qh5 Rc8 Qhe2 Qa7 Bd8 Nf3 e5+ Kd7 Bh3 Bd6 Be7 Bb8 d6 Qg2 d5 h1Q Bg4 Qh5 Bf8 Rd2 Bg7 Nd3 Bh8 Rb2 Bh3 Rc5 Bg4 Nf4 Bh3 Kc8 d7+ Kb7 Ke7 Rc4 d8Q Rcb4 d6 R4b3 Nb1 a3 d7 a2 Na3 a1Q Qc8+ Kb6 Kd8 Qh1 Nc7+ Kc5 e6+ Kd6 Bg2 Nd2 Bb7 Nf3 Ba6 Qg2 Rg8 Qg7 e7 Qb7 Nb1 Qa4 Ne6 Qad4 Na3 Qda7 Qh4 Qgh7 Rg6 Qg7 Be5+ Kd5 Qf6 Bd6 Bc3+ Be5 Qf1 Ke4 Qfc4+ Ke3 Qb4 Kf2 Qbc4 Ng5 Qe2+ Kg3 Qe1+ Kh2 Qc4 Ng2 Qce2 Qbb6+ Kc8 Nf3 d8Q Bc6 e8Q Bg3 Qee7 Be8 Qdc7 Qab7+ Kd8 Q6a7 Qe4 Nf4 Qc8 Qf2 Qd3 Qfa7 Qde2+
2Rr3b/1n2p1Bn/Q1q1B2q/B1N1KNk1/4Bn1r/1n3N1P/r6B/2Qb1q1R b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 f4 g5 b4 d3 c4 g3 h3 g4 c5 a4 b6 a3 c6 a2 c7 g2 b5 d2 b7 g3 b6 Nc6 b8B Bg7 b7 Na5 Ne2 g1Q Bg2 Qf1 Nd4 Qe8 Qc2 d1N Nd2 Rh4 N2f3 Nb2 Bd2 Nd3 Rc1 a1N Qc4 d6 Qa6 N1b3 Bc3 Be6 c8B Bh8 Bb4 Bf7 Be6 Bh5 Rc8 Qf8 Bc7 Qh6 b8Q Nb7 Bba5 Qc1 Qba7 Qc4 Qc5 d5+ Ke3 Qa4 Qc1 Qc6 Bb8 Kg7 f6+ Kg6 f7 Nf6 f8B Nh7 Nf5 d4+ Ke2 Ra7 Bg7 Bg4 Nd6 Kh5 f5 Ra8 f6 Nf4+ Ke1 d3 f7 Kg6 Nf5 d2+ Kf1 Kh5 f8N Ra7 Nd7 d1R+ Be1 Rd3 Nc5 Rd8 Ba5 Kg6 Ng1 Ra8 Be4 g2+ Kf2 Bd1 Ke3 Kg5 Bd6 Nd2 Kd4 Nb3+ Ke5 Ra7 Ne2 g1Q Ned4 Qf1 Nf3+ Kh5 Be1 Ng5 Qb5 Ra2 Qa6 Nd5 Ba5 Nh7 Bdc7 Nd2 Kd4 Kg6 Ne1 Kg5 Bh2 Nf4+ Ke5 Nb3 Nf3+
1b1nb3/BN2p3/nqB1Q3/2R4B/2BQr3/1r1N1PBR/rb4b1/1KnR2kq b - - 0 1 illegal: No possible last move
Q1nR1r1b/1rN1p2b/1Q5Q/q3P3/r6R/QK1Brk2/1Q1Bq1qb/1nNR4 b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 e4 Kf7 d4 Kg6 Kd2 Kg5 b4 Kf4 f3 h5 d6 a5 d5 c5 e5 g5 b6 h4 b5 g4 b7 h2 b6 g3 d7 h3 d6 c4 Ra3 g2 Qa4 Nf6 Rb3 Ra7 Qa2 a4 Qa3 Bg7 Rd3 Nd5 Qa2 a3 Qb3 a2 Nc3 a1R Qa3 Rf8 Be2 Nc6 b8Q Bh8 b7 Qa5 d8Q Bf5 d7 Bh7 Kc2+ Kg3 Nb5 c3 Kb3 c2 Qbc7 Nc3 b8Q Rb7 Rd1 Na7 f4 Nc8 f5 Nb1 Bd2 c1R f6 Rc4 f7 Re4 Qb6 Re3+ Bd3 Ra2 Ne2+ Kf3 Q8a7 g1B Qb2 Ra4 Nc7 Bf2 Ne8 Bg3 Nc1 Bf4 Nc7 Bg3 Rhe1 h1Q Re2 Qe1 Rh2 Qe2 Rhh1 Nd6 Qda8 h2 d8R Nc8 Qa6 Rg8 f8Q+ Bf4 Rhg1 h1Q Rg4 Qhg2 Qh6 Rf8 Rh4 Bh2 Q6a7 Qc5 Qa5 Qb5+ Qb4 Qa5 Q4a3
1r1q2R1/2Pb4/1Q1b1nr1/1b3rQQ/q2k1BBR/r6B/qN1Bpn1K/1N2B3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 g4 Kf6 f4 h5 Kf2 e5 Kg2 d5 b4 a5 b6 e4 c5 h3+ Kh2 d3 c6 d2 b7 h4 c7 e3 b5 d4 b6 a4 Nf3 a3 Ne1 a2 Nd3 Bd7 Nb2 Na6 b8Q d3 b7 Bd6 Rg1 Nb4 g5+ Kg7 g6 Kf6 g7 Ra3 Qe2 d1B Bd2 B1a4 Qh5 e2 Qc8 Bac6 b8Q Bb5 Qb6 Rh6 Be1 d2 Qca6 d1Q Qaa5 Qa4 Qg5+ Kf7 f6 Ke6 f7 Nd3 f8B Nf6 Rg3 Nf2 f5+ Ke5 g8B Ke4 Be6 Rg6 Bh6 Ke5 Qh5 Ke4 Bhd2 Ke5 Kg1 h2+ Kg2 h1R Qg5 Rg1+ Kh2 Ke4 Bh3 Rf1 Bg4 h3 Bf4 Nh5 Bfd2 Ke5 f6+ Ke4 f7 Nf6 Bef5+ Ke5 f8B Kd5 Nc3+ Ke5 Rb1 a1Q Bh6 Qa2 Qh5 Bf8 Rc1 Bd6 Nb1 Kd5 Rc5+ Kd4 Bhg5 Nh1 Be6 Rf5 Bh6 Nf2 Bhf4 Bdc6 Bc8 Bd7 Rc4+ Kd5 Kg1 h2+ Kg2 h1R Qg5 Rg1+ Kh2 Rg8 Bh3 Rh8 Qh5 Re8 Rg8 Rg6 Qc3 Rf8 Qg3 Qe7 Qgg5 Rd8 Ba6 Rb8 Bc8 Qd8 Be5 Qb4 Rh4 Qa4 Bef4 Be8 Qa6 Kd4 Be6 Bed7 Qa5 Rc5 Beg4 Rf5 Qb6+
Q1R1K2B/1Pr1Nr2/4N1N1/q5bB/N2qnN2/Qpk1B2n/r2q2bR/2q1b3 b - - 0 1 illegal: No proof kernel
K1N2k2/P4q1b/rb2B1N1/1NqRR1B1/N5N1/2Q1rQpb/1nn2R2/r3n2b b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 c5 Kd3 e5 Ke4 g5 f4 b5 h4 b3 d4 b2 a4 b4 f6 g3 a5 b3 f7+ Ke7 a6 c4 h5 c3 f5 c2 a7 g4 d6+ Kd7 Kd5 e4 h6 e3 f6 g2 h7 e2 Ra5 e1Q Nf3 g1R Rh5 g3 Bc4 Qc7 Nc3 b1B Nh2 b2 Na4 Qe3 Rf5 Qe7 Rf2 Nc6 Bg5 c1N Qh5 Ne5 Qf3 Bg7 f8N+ Ke8 Ne6 Nh6 d7+ Kf7 Qc3 Nhg4 d8R Ned3 Rb5 Qe5+ Kc6 Ne3 d5 Bc2 d6 b1B d7 Nb2 Re8 Ncd3 Nc7+ Qd5+ Kb6 Bb3 d8Q Bh3 Ng4 B1c2 Qd7 Ra1 Qc6 Ne1 Kb7 Qb4 Re4 Rae8 Rd4 Rhf8 h8N+ Kg8 Nf7 Bh7 Rd1 N3c2 Nd6 Re3 Nc8 Rfe8 Ka8 R8e6 Qb7 Ra6 Rd4 Bf8 f7+ Kg7 Qc6 Bc5 f8N Bb6 Ng6 Qf7 Re5 Qc5 Be6 Bd5 Nb5 Bh1 Qf3 Kg8 Rdd5 Kg7 Nge7 Kf8 Ng6+
q2k1NQ1/P1Nb3R/1qNN4/1n1rqN2/3b2K1/5Qp1/1nR1nrr1/BB3Bq1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 c5 Kf3 g5 e4 f5 h4 b5 d4 b3 a4 c4 a5 c3 h6 b2 e5 c2 h5 b4 e6 b3 h7 Nh6 d6 Nd7 e7 Rg8 h8Q Nf7 a6 Nc5 d5 Na4 h6 Bd7 a7 Bg7 h7 Bd4 Nd2 b1Q Ne4 b2 Ra2 Qa1 Ne2 b1Q Bb2 c1N N2g3 Ne2 Qg7 Rb8 h8N Rb5 Rh7 Qa8 Ng6 Rc5 Bc3 Qb6 Rc2 Nb2 Nf8 Ra5 Qh8 Rg6 Qg8 g4+ Kg2 f3+ Kh2 f4 Nf5 g3+ Kh3 Rh6+ Kg4 f2 Qd3 Rh2 Qf3 Na4 Bb2 Qe1 Ba1 Nb2 Nc5 Rg2 Nb7 Bc6 Ne6+ Kd7 e8B+ Kc8 Nc7 Bd7 Nc5 Kd8 Ne4 Bb5 d7 Nd6 Qh8 Bc6 Qg8 Nb5 Ned6 Qc3 Rh5 Qe3 Rh7 Qe5 Bg6+ Qe8 Bf7 Qa6 Nc4 Qb6 Qd3 Na3 Qc3 f3 Qe3 Ng1 Bd3 f1R Rg7 f2 Rh7 Rb5 Be2 Rc5 Qf3 Nb5 Nfe3 Ke7 d8N Bc3 d6+ Kd7 Nde6 Bd4 Nf8+ Kc8 Nf5 Qe5 Nd2 Be8 Ba2 Rd5 Bb1 Bc6 Nc4 Be8 Nce6 Bc6 Ng5 Be8 d7+ Kc7 d8N+ Bd7 Nc6 Kc8 Nb8 Kd8 Bd3 Re1 Nd6 f1Q Bc4 Ree2 Bd3 Ref2 Be2 Rh2 Bc4 Qg2 Bf1 Ne2 Nc6+ Kc7 Nc4 Qg1 Nge6+ Kc8 Nc7 Rhg2 Ne7+ Kd8 Nd6 Bc8 Qg5 Be6 Qg8 Bd7 Nc6+
5r1b/K4n2/1r2BB2/QRB5/1Nrrb3/r2pPNq1/2RrBkB1/N1n3bQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 b4 Ke4 g4 a5 c3 d5+ Kb3 f5 Ka4 h5 b6 f3 Kb5 h4 b7 h3 c4 h2 c5 a4 c6 f4 c7 a3 Kb6 f2 g6 a2 b5 f3 g7 d3 g5 d2 g6 Ke3 Bb2 d4 Qe1 d1R Qa5 d3 Bf6 Nc6 b8B Nb4 Bg2 f1R Nd2 f2 Nb3 Rd2 Rb1 a1B Ba7 Bf5 Nf3 Nh6 g8B Rc1 g7 f1R Be6 Nf7 g8Q Be4 Qh7 Kf2 e3 Rc4 Rb2 Bd6 Rc2 Qg8 c8B Qg3 Bb7 Bb2 Na1 Na2 Ka6 Rhg8 b6 Rg6 Bbc8 Bc7 b7 Nc1 b8N Bd4 Rg1 h1R Nc6 Rh4 Nb4 Rf4 Qh1 Bb2 Bg5 Bh8 Bd7 Rf8 Bc5 Rh6 Ka7 Rg4 Bf5 Rb6 Bf6 Rd4 Bde6 Rd1 Rc4 Ra2 Re1 Ra3 Rc2+ Rd2 Rg1 Qh4 Bg6 Bh2 Bh5 Qg3 Re1 Bg1 Rd1 Nb3 Rb1 Rh4 Nh2 Rc4 Be2 Nc1 Rb3 Bf5 Nf3 Rhd4 Na2 Bh7 Rb5 Be4 Nb4
B1b2rQb/2NQb2N/5R2/1K4bB/p2B1bB1/2N2RbB/nPn2q1k/2r2n2 b - - 0 1 illegal: No proof kernel
QK1B1b1b/P1Rb2r1/1R5b/2q5/1NNk3N/r1N1rBp1/nbb1Q3/1R1nN3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 b5 d4+ Kb6 h4 c5 a4 g5 f4 g3 f6 b3 h5 e6 f5 g2 f7 g4 h6 c4 h7 c3 d6 b2 f6 g3 d5 Kc5 a5 b4 d7 c2 d6 b3 a6 Qc7 d8Q Nh6 Qe2 Rg8 h8N Nf5 Nc3 b1R Nf3 g1B Bg2 b2 Ne1 Rg7 Bf3 Bd7 Ng6 Ne3 Rh7 Nd1 Bg5 c1B Nh4 Bge3 a7 Na6 Qb8 Nb4 Qb7 Re8 Qa8 Re7 Ra6 Ra1 Rb6 Rg6 Rg7 b1B Rh7 Be4 Rg7 Ra3 Rh7 Bg7 f8R Bb2 Rfb8 Bf8 f7 Bc2 R8b7 Re8 Bd8 Beh6 Rg7 Na2 Rh7 Be7 f8N Rg7 Nfg6 Bf8 Rb8 Bbc1 Rb1 Bb2 Rb6 Qc8 Nhg2 Qc7 Ne3 Qc6 Nc4 Qd5+ Kf6 e5 Nh4 e4 Ra1 e3 Rb1 Be6 d7 Qc6 Ke5 Qb5 Bg5 Qc6 d8N Bd7+ Kf4 Qb5 Nc6 Re6 Nb4 Kd4 Nbd3 Qc6 Kf5 Qc8 Bd8 Re5+ Kf6 Qc5 Nb4 Bc8 Qf1 e2 Qg2 Re3 Qf2 Rg5 Rc7 Bd7 Kf7 Be6+ Ke8 Rg7 Be7 Bd7+ Kd8 Bda4 Kc8 Bc6 Neg2 e1B Qe2 Bd7+ Kb8 Bd2 Bd8 Be1 Ncd5 Bec3 Ne1 Rg8 Na5 Ke5 Bh5 Ke4 Nc4 Bh8 Bf3+ Kd4 Nc3 Rg6 Rc1 Rg7 Rb1
Q2n1R2/Qr1bk3/rq2b2n/4KBb1/r2B2Qr/N1PpQR2/rB5Q/2b1N3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 a5 Ke4 h5 b4 a4 g4 d3 f4 h3 f6 h2 g5 h4 b6 d2 g6 a3 f7+ Ke7 f5 h3 g7 a2 b7 Nc6 b8Q Ra6 c3 Rh7 b5 Qb6 Bb2 Nd8 Qf3 d1B Qe3 Bg4 Bd3 Nh6 g8Q d6 Qg7 Be6 Na3 Bd7 Kd5 e4 Rf1 a1R Rf3 Ra2 Qa7 Ra4 Qg8 Bg7 Bb1 Bf6 Qg7 Bg5 f8B+ Ke8 f6 Ra6 Qc1 e3 Bf5 e2 Qe3+ Be6+ Ke4 d5+ Ke5 e1B Bc5 Bd2 Bd4 Bc1 Qgd7+ Kf8 Qc8 Rc7 f7 Rb7 Qca8 Ke7 f8Q+ Kd7 Qg8 Ke7 Rf1 Bd7 Nf3 Ra4 Rhg1 h1R Ne1 h2 Rg3 Rg1 Rf2 h1R Rgf3 Rh4 Rf1 Bh5 Qg7+ Bf7 Qg6 Rg2 Qh5 Bfe6 Qg4 Qc6 b6 Ra6 Nb1 R2a4 Na3 Rgh2 Ba1 Ra2 Bb2 Rc7 b7 Qb6 b8Q Rb7 R1f2 Qb4 Bb6 d4 Qc7 d3 Bd4 Bc4 Ke4 Qb3 Qh2 Qb6 Ke5 Bce6 Bg6 Rb4 Rf8 Rc4 R2f3 Rca4 Bf5
Bq1bR3/bb1R4/5BN1/Q2b1bQ1/rPN1Qnr1/QQ6/3k1pB1/1Kbn2q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 Kd2 f5 Kc2 h5 g4 c5 d6 a5 d7 a4 d5 h3 d6 h2 b6 c4 b7 h4 e5 h3 e6 c3 e7 a3 e8B a2 Qe1 Rh4 Bg2 Be7 Bf7 Nc6 b8Q Na7 Qd2 Nb5 Qc7 Nf6 Qa7 Nh5 Qaf2 Ra4 Qf3 Bb7 Bg8 Qb8 Qdd3 Bd8 Nd2 Bc8 Qb7 f3 Bd5 Kf4 g5 f2 g6 f1Q g7 Rg4 Ngf3 Qg1 Rb1 a1B g8Q Bb2 Ne5 Ba1 Qa8 Bb2 Qc4+ Ke3 Ng6 f4 Qb3 f3 Qa3 f2 Nc4+ Ke2 Bg5 Nf4 Bf6 Bc1 Qa5 Be3 Rd1 Ba7 Ba8 Bb7 Kc1 c2 Qd5 Nc3 Qe4+ Be3+ Kb2 c1B+ Kc2 Bc8 Rd4 Nd1 Kb1 Bb7 Rd5 Ke1 Re5 Bd5 Re8 Be6 Qad5 Bf5 Qe6 Qf1 Rg1 h1B Qd5 h2 Qdd3 Bc7 d8Q Bb6 Qde7 Bd8 Qdb3 Ke2 d7 Ke1 Nd6 Kd2 Qe5 Ba7 Qa5 Qe2 Re1 Qf1 Re3 Qe1 Rh3 Qg1 Rh7 Bdb6 d8Q Bc7 Qe7 Bd8 Bh3 Bf3 Bg2 h1B Qg7 Be2 Qh6 Bc4 Qg5 Bd5 Rd7 Bb7 Bf1 Bf3 Bh3 Be2 Bf1 Bc4 Bg2 Bcd5 Nc4#
1R2R1n1/kb1n1n1Q/Qb1nr3/B1R2b1B/Pn2q3/1K1B2bN/pN5R/R4r2 b - - 0 1 illegal: No proof kernel
Nq4n1/2Bb3Q/B5KB/rr2Bnp1/R3R3/QnR4P/k1N3nn/B1r1b2r b - - 0 1 illegal: No possible last move, all moves rejected
5B2/nnBbn1Q1/5B2/1PpBRb2/2KnQQNn/4qR2/5bN1/kB1rb2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 Ke2 Ke5 Kd3 f5 g4 h5 g5 a5 d6 a4 g6 h3 b6 f3 g7 f2 d7 f4 b5 h4 b7 f3 Ne2 h2 Rg1 h1N Rg3 h3 Bg2 f1B Kc4 a3 d3 f2 Bg5 h2 Bh6 a2 Bd2 Nc6 b8B Qe8 d8B Bf5 Qc1 Na7 Bb4 Ne7 Rf3 Ng3 g8B h1N Nf4 Ne2 Nd2 Nhg3 Bh7 Nd4 Qb2 Bh6 Re1 a1B Bc5 Be2 Nf1 Bf8 Qc1 Bc3 Nh2 f1N Bh1 Bd7 Ng2 Ngf5 Qd2 N1g3 Ng4+ Ke6 e5 Ne4 Bd6 Nc5 Qf4 Nb7 Bb4 c6 Bbc7 Nh4 Bbd6 c5 Be4 Bh6 Bh7 Nd5 Bf6 Rd8 Bf8 Ne7 Be4 Bd1 Bh7 Bc2 Re4 Ndc6 d4 Be1 Ree3 Bf5 d5+ Kf7 d6 Ke6 Re2 Nd4 Bg6 Bc8 d7 Bf2 Qh2 Bd2 Qf4 Bde1 Bh7 Qh5 Re4 Qg5 Ree3 Re8 d8Q Bd7 Qb8 Qh6 Qg5 Rd8 Qg7 Qf4 Re4 Qg5 Kd3 Kd5 e6 Nec8 e7 Qh6 e8Q Ne7 Bh2 Qg5 Qf4 Qh6 Qd2 Qg5 Kc3 Qh6 Bc7 Qe3+ Kb2 Kc4 Re5 Ne2 Qd6 Nd4 Ka2 Kc3 Ka3 Bfe6 Bb1 Bf5 Ka4 Kb2 Qeg6 Bd3 Qe4 Ka1 Ka3 Ne2 Kb3 Rh5 Qeg6 B3f5+ Kc4 Rh7 Qd2 Nd4 Qb4 Rh8 Q6h6 Rh7 Qf4 Ne6 Rh3 Nf3 Qb3 Bc6 Nh4 Rd1 Qc2 Ned4 Qd3 Bcd7 Rg3 Nh2 Bd5 Nhf3 Ng2 Rh1 Qde4 Nh4 Rf3
2BQ3r/1B1qn3/KB3nP1/1r4R1/2b3b1/QpRrb2b/RNN2Bk1/1r4Bb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kf4 g4 h5 a4 e5 d4+ Ke4 f4 c5 d6 c4 g5 b6 d5 h3 a5 b3 d7 b2 d6 h2 f6 c3 g6 c2 f7 h4 a6 h3 a7 Qe7 d8B Bg4 d7 Nc6 f5 Nf6 Ra2 Rb8 a8B Bh6 f8Q Be3 Ka6 b5 Nf3 b4 Nd4 b3 Na3 b1B Nc4 Rb5 Bb7 Qh7 Ba3 c1R Bc5 Bd3 Bdb6 Rc3 d8R Qd7 Nb2 Bc4 Nc2 Rd3 Bg2+ Kf4 Bc8 Ne7 Bgb7 Kg3 Rg1+ Kf2 Rg3 h1B Qc1 h2 Qa1 Qc6 Rd5 e4 Qd8 Bg2 Bd4 h1B Bc5 Nh7 f6 Qd7 f7 B2h3 f8B Nf6 Rf3+ Kg2 Bd4 Bg5 Bf2 e3 Qc1 e2 Bg1 Nf5 Bfc5 e1R Bcf2 Ne7 Qa1 Rdd1 Rc3 Rd3 Qc1 Red1 Na4 Bf4 Qa3 Rb1 Nb2 Be3 Rg5+
1kqBr1r1/8/1N2p3/1Q1B1qn1/P1rN2r1/RQN2br1/KQ1b2N1/1Nr1R1n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 g4 b5 d4 c5 Kd2 Kc7 Kc2 h5 Kb3 c4+ Kb2 e6 a4 b3 f6 b4 f5 h3 g5 h2 g6 h4 f7 h3 g7 Nh6 g8Q Nc6 f6 Ne5 d6+ Kb8 d5 Bb7 d7 Nf3 d6 Qc8 Qg5 Rg8 Ne2 Ng1 d8N Bf3 Ra3 c3+ Ka1 c2 d7 b2+ Ka2 Bd6 f8N Nf7 Nec3 Bf4 Ng6 Bd2 Nf4 Re8 Qc5 Ng5 f7 Rg8 Bc4 Re8 Bd5 Rg8 Nce2 Re8 Nbc3 b1R f8N Rb3 Nb1 Rc3 Qf2 Rc4 Ng2 Rg4 Bb2 c1R Bf6 Rcc4 Qd4 Rg3 Qb2 Rcg4 Nec3 b3+ Ka1 Ra5 Qe2 Rc5 Qd3 Rcc4 Nc6+ Ka8 Nd4+ Kb8 Ng6 Rg8 d8Q Re8 Ne7 Rg8 Qc1 b2+ Ka2 Ne2 Qe8 Rh8 Ne1 Qd8 Nd1 Rf8 Rf1 h1R Ng2 h2 Nc8 Rh8 Nb6 Qc8 Rf2 Re1 Qb3 h1R Rf1 Ng1 Qeb5 Re8 Bd8 Rhh8 Ndc3 Rhg8 Qcc2 Rc1 Re1 Bf4 Nd2 Be3 Q3b4 Bf4 Kb3 b1Q+ Qb2 Qc2+ Ka2 Qf5 Ndb1 Bd2 Q4b3
K1B2bkb/n4Nrb/q1NPbQQQ/q1Rb4/B6R/4BQ2/5p2/2n1bQr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 g4 a4 b4 f3 d4 h3 g5 f2 g6 c4 g7 f6 b6 Kf7 b7 h2 b5 c3 d6 c2 Kd5 f5 e4 h4 d7 h3 b6 f4 e5 a3 e6+ Kg6 e7 Kh7 e8B f3 Ne2 a2 Nbc3 Qc7 d8Q Ra7 Nb5 Nd7 b8Q Nc5 b7 Nb3 Nd6 Qa5+ Kc6 Be6 Be3 c1B d5 Bd2 Rc1 a1B Rc5 Nc1 Qa8 Be1 b8Q Be5 Bg2 f1Q Nd4 f2 Nf7 Qfa6+ Qbb6 Bf6 Qb7 Ne7+ Kc7 Nc8 Kb8 Rg8 Nc6 Bfc3 Qf6 Bb2 Qa8 Rd7 Qab7 Na7 Ka8 Rc7 Bd7 Bd4 Bc8 Bb2 Rg1 h1B Qe2 h2 Qf1 Re7 Bh3 Rd7 Rg4 Be4 d6 h1B Qbb5 Rh8 Rh4+ Kg8 Qa4 B4d5 Qaf4 Bhe4 Q4h6 Bh7 Bf5 Re7 Bc2 Bc4 Ncd8 Nd3 Rh3 Qc7 Qe5 Nc1 Qhh5 Bhd3 Ng5 Qca5 Qbf3 Bcd5+ Nc6 Rh6 Ba4 Bh7 Qd4 Rg6 Rh4 Rc7 Qh6 Bbc3 Nh3 Rg1 Qdf4 Bf6 Qe5 Kf7 g8Q+ Ke8 Qgg2 Kf7 Ng5+ Kg8 Qef4 B6g7 Qff6 Bh8 Qgg4 Rg7 Nf7 Be7 Qge4 Bf8 Qeg6
2KQn3/2R4k/2RPr1Nr/3RQr1b/nR3Q2/Nqr2r1R/1Bprq3/b6B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 d4 Kg6 e4 a4 b4 f3 b6 a3 g5 c4 b5 c3 b7 a2 b6 f4 d6 f2 d7 c2 Ke6 f3 d5 h3 d6 h4 e5 h2 Ba6 f1Q Bb5 f2 Nh3 Nf6 Qg4 Rh6 Bb2 Ra5 Bc6 Kh7 Na3 Qe2 Nf4 f1R Rd1 a1R Ng6 h3 Qf4 Bg7 Rd5 Na6 b8R Rad1 Rb7 Ne8 Rc7 Rf3 b7 Rd2 b8R Rc5 Rbb7 Rcc3 Rb4 Bh8 Bb7 Bf6 Rc6 Qb6 Ba8 Bb7 d8Q Bh8 Ke7 Nc5 e6 Na4 Kd7 Qbb5 e7 Qbd3 Rg1 h1R Rg3 h2 Rh3 Rhf1 Rc7 Bc6+ Kc8 h1R Bb7 Qc4 Ba8 Qb3 Bb7 Ng7 e8Q Rhg1 Qee7 Be8 Qee5 R1f2 Bc6 Re1 Qef5 Bd7+ Kb7 Qe8 Ra5 Rg2 Qc4 Rff1 Nf4+ Qg6 Bc1 Rgg3 Bh1 Be8 Kc8 Rcd3 Ra6 Re4 Rac6 Re6 Qfc5 Qe4 g6+ Kg8 Qf5 Qe2 Qc3 Rg5 Qc4 Rff3 Qfd5 Nf5 g7 Kh7 g8R+ Ng7 Rf8 Bh5 Ng6 Rde3 Rf5 Red3 Re5 Rgf5 Qf4 Rde3 Qde4 Red3 Rd5 Rde3 Kd7 Ne8 Qd4 Bf6 Qde4 Bc3 Qee5 Ba1 Bb2 Rc3 Kc8+
1B1b1rbR/B1rB1r2/nRP5/3r3q/1N2r1Bk/BN3Qn1/QbKp1Q1b/8 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 a5 b4 d5 g4 h5 c5 e5 c6 a4 b6 d3 b5 a3 b7 e4 b6 e3+ Kc3 h3 Rh2 e2 Qc2 e1B+ Kb3 d4 Nd2 h4 Bb2 a2 Ndf3 d2 Rb1 d1R Ba3 a1B Qa2 d3 Nd2 Bd6 Ne2 Na6 b8B Bb2 b7 Rh7 Nd4 Ne7 Nc2 Qa5 Ba7 Rf7 b8B Qe5 Rh1 h2 Be2 h3 Nb4 Bh4 Bf3 Re1 Bd1 Re4 g5+ Kg7 f6+ Kg6 Be2 Nf5 Bg4 Ng3 Bd7 Kh5 f5 Qe8 g6 Bg5 g7 Kh4 g8B Bdf4 Nc4 d2 Kc2 Bd6 Na5 Qe5 Rhe1 h1R Nb3 h2 Bh7 Rf1 Rec1 Rf8 f7 Bd8 f6 Qh5 Bhf5 h1R Bg4 Rf5 Rf1 Rd5 Rf2 Rf1 Rf4 Rfe8 f8Q R8e7 f7 Rf2 Rf6 Rff5 Rh6 Rf6 Bdf5 Rc7 Rh8 Bf4 Qc5 Be6 f8Q Bg8 Qf2 Rff7 Qf3 Be3 Bd7 Bg1 Qc5 Bh2 Qcf2 Rb7 Be5 Rc8 Beb8 Rbc7 Re1 Bg5 Re3 Rcf8 Rc3 Bf6 Rc5 Bg5 Rb5 Bd8 Rb6
k3bQRB/2nrBQ1q/2pB4/2P3N1/nnn3nb/2b3r1/2N2R2/BN1Kb1B1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 b4 d5 h4 Kd7 c4 a5 f4 g5 e4 a4 b6 Kc6 e6 Kb7 b5 g3 e7 d4 e8Q g4 h5 c6 c5 a3 h6 d3 h7 d2+ Ke2 a2 e5 Bd7 f5 Bg7 f6 Qc7 e6 Ra7 e7 Ka8 f7 Nh6 f8B Bc3 Qf1 d1N Qf5 Rg8 h8B Nb2 Rh2 Nc4 Qef7 Na6 Nf3 g1B e8N g2 Nd6 g3 Ne4 Bf2 Neg5 g1B Be7 g2 Nd4 Be8 Kd1 Bh4 Nc2 Bgf2 Be3 Bfe1 Bg1 Ng4 Qf8 Qd7+ Qd5 Qf5 Qdf7 Nc7 b7+ Kb8 Rh3 Qh7 Rf3 Rg7 Rf2 Rg6 Bh2 g1N B2e5 Ne2 Bh2 Ra3 Bg1 Ka7 b8B+ Ka8 b6 Ra7 Nd2 Rg8 Rc1 a1N Nb1 Nb5 Bbe5 Rd7+ B5d6 Nc7 b7+ Kb8 Nd4 Nc2 Bde5 Ka7 b8B+ Ka8 B5d6 Nb4 Nc2 Nd4 Bde5 Ndb5+ Bd4 Nbd6 Bdg7 Nb6 Be5 Ndc4+ Bd4 Ne6 Bbd6 Na4 Bdf6 Bcd2 Ba1 Nc7 Nd4 Rg7 Rc3 Rg6 Rg3 Bc3 Nc2 Rf6 Re3 Rf3 Re6 Rh3 Rg6 Rg3 Rg8
1N1QnQ2/1bqnK1NB/PnN3Q1/2r1k1n1/2n4p/r1QRB1R1/1Q1n4/4b1q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 c5 g4 h5 a4 e5 d4 b5 f4 c4 a5 h3 d6 c3 Kd5 h4 a6 b3 d7 b4 g5+ Kg7 Ke6 c2 g6 e4 d5 h2 d6 e3 Qe2 b2 Nd2 b1N Ra3 b3 Ndf3 b2 Ne5 Qc7 Rd3 Rh6 Nc6 Rh5 Nf3 Bb7 d8N Nd7 Nfd4 Rc8 Rg1 h1Q Nb8 Na3 Rg3 Nb6 d7 b1N Bd2 c1N f6+ Kh8 f5 Nb3 f7 Kg7 Bg2 Nac4 Be4 Nf6 Bc1 Qf1 Qb2 e2 Be3 e1N Qc3 Ne8 f6+ Kh8 Qb2 Ra5 Bf5 Bh6 Ke7 Nf3 N8e6 Nc5 Ng7 Qg1 Be4 Ra3 Bf5 Qc6 d8Q Ng5 Qc3 Nbd2 Be4 Qd5 f8Q+ Qg8 f7 Ncd7 Bf5 Rc5 Qb2 Qf2 Qc7 Qf4 Qc6 Qc7 Be4 Nef6 Qd8 Ne8 f8Q Ncd6 Ngf5 Nd6c4 g7+ Kh7 Qa4 Kg6 Qa5 Qd5 g8Q+ Bg7 Bh1 Qg2 Qac3 Qg1 Be4 Nce5 Qga2 Nec4 Qab1 Be5 Rf3 Bg3 Ng7+ Kh6 Bh7 Be1 Ngf5+ Kh5 Ng7+ Kg4 Bf2 Rf5 Rg3+ Kf4 Be3+ Ke5 Q1c2 Rf6 Qcb1 Rc6 Q1c2 Nf1 Qg2 Rc5 Qc6 Nfd2 Qh6 Bf3 Qg6 Bb7 Ndc6#
Q5n1/2rR2r1/p1PbNn2/Q1Nn2QB/Bb1qkb2/5R2/K2Qbn2/B3b1Q1 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Kc3 Kf6 Kb3 Ke5 c4 d5 h4 g5 f4+ Kf5 c6 e5 c7 e3 c5 a6 c6 e2 b6 e1N h5 g3 h6 g2 h7 e4 b7 g4 Bb5 e3 Ba4 d4 Ra3 e2 Ka2 d3 b4 d2 b5 g3 b6 Ke4 f5 Kd4 f6 Ne7 f7 Bg7 f8Q Rg8 h8Q Be5 Qf2+ Ke4 Qh6 Rg7 Bb2 Bg4 c8B Nd7 b8Q Bd6 b7 Nd3 Qg5 e1B Nh3 g1B Nf4 g2 Ne6 Ra7 Ba1 Bgh2 Qg1 Nf4 Qc7 Nf6 b8Q Be2 Rf3 N4d5 Qa5 Neg8 Qa8 Bhf4 Rh7 Rac7 Qc1 d1N Qcd2 Bb4 Bd7 Bbd6 Be8 Nf2 Bh5 Bb4 Na3 Qd6 Nc4 Qe5 Nb2 Qd4 Nd3 Bfd6 Qh2 g1B Qh1 Bgh2 Qhg1 Rg6 Re7 Bhf4 Rd7 Rg7 Ndc5+
1Brb4/4Q1Pk/KN3n1R/n6Q/qN2bp2/1Rb3rR/5NnN/2bBn1Nn b - - 0 1 illegal: No possible last move, all moves rejected
N4NqR/2Q1bp2/3R3r/N6r/bB5Q/BqB1Brkn/rP1r2n1/1r1B3K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 d4 Kf6 e4 Kg5 g4 h5 Kg2 a5 e5 c5 d6 c4 b6 a4 b7 c3 e6 c2 d5 a3 e7 a2 e8N Ne7 d7 Ng6 d6 Be7 Be3 c1Q Ne2 Qc3 Qd4 Rh6 Na3 Nc6 b8B Na5 Rd1 a1R Nc4 Ra2 Nc7 Qg8 d8B Qb3 d7 h3+ Kg1 Kh4 g5 Ra7 Na8 h2+ Kg2 Ra6 Be5 Rd6 Qe4 Bb7 Bc3 Bc6 Nd4 Ba4 Ne6 Rd3 Be2 Rd2 Rhe1 h1R Nf8 Rh3 Rh1 Rh2+ Kg1 Kg3 Qb7 f3 Qc7+ Nf4 g6 h4 g7 h3 Bb4 Bd6 Bf6 Be7 d8B Rh5 Bfc3 Rh6 Ne5 Nc4 Nc6 Rh5 Na5 Rh6 Bed4 Ne3 Ba7 Ng2 Be3 Bc5 Bdf6 Be7 Ba3 Rh5 Bcb4 Rh6 Bfc3 f2+ Kf1 Rc2 Rd6 Rd2 Rg1 Rh1 Bh5 h2 Bd1 Qh7 g8Q+ Qg6 Qg7 Nh3 Qh7 Qg8 Qe4 Rd3 Ke2 f1R Qec4 Rf5 Rf1 Rfd5 Rf4 Rf1 Rh4 h1R Qd4 Rf3 Qf6 Rg6 Rh8 Rh6 Qd4 Rdh5 Qh4+ Kh2 Bc2 Rb1 Bd1 Rg3 Kf1 Rd2 Qg4 Nf2 Qgc4 Rf3 Qe4 Kg3 Kg1 Nh3+ Kh1 Rhd5 Qd4 Rdh5 Qh4+
nKbr4/nNrP4/2p2n1B/3R1B2/nkRq1r1B/3Bn3/Q6Q/bNrB1Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 f5 e4 h5 d4+ Kb4 d6 c6 d7 a4 d5 a3 d6 h3 b6 h2 b7 a2 g5 f3 g6 f2 g7 h4 Bh6 h3 Nf3 f4 Ng5 f3 Nf7 Ra7 Bd3 Rh7 Qf1 Nf6 g8B Ka4 b4 Ra8 b5 Kb4 b6 Na6 b8Q Bg7 b7 Nc7 Qa7 Rb8 Rg1 h1R Rg4 h2 Rh4 Ra8 b8Q+ Nb5 Ke6 Rg1 e5+ Rg4 Bf5 h1R Rh5 Qb6 Nd8 Rf4 Nb7 Qd4 Bf7 Bh8 B7g6 Bg7 Qa6 Na7 Ke7 Bh8+ Kd8 Re7 Kc7 Bg7 Qfd3 f1N e6 Ne3 Qf1 f2 Bd3 Rf7 e7 Nc4 e8B Nb6 Rd5 Rg1 Bgf5 Re7 Qh3 f1N Bh5 Ne3 Bd1 Bh8 Qf1 Rf7 Nc3 Rfg7 Rc1 a1N Nb1 Nb3 Rc2 Nc5 Qa2 Nca4 Rc3 R1g2 Rcc5 Rc2 Rc3 Rh7 Rcc5 Bg7 d8B Rc1 Be7 Be6 Qh8 Rd8 Rc2 Bc8 Kb8 Na8 Rcc5 Nfg4 Bh4 Bf6 Rc3 Rc7 d7 Be5 Qg7 Nf6 Qgg2 Qe4 Rcc5 Ba1 Qh2 Qd4 Rc4+
n1rN1r1B/b1kpK1QQ/Q3bnNQ/3qR1n1/2N3Bn/3r4/2r1nP2/Q1R5 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kd3 e5 Kc4 a5 Kd5 a4 c4 h3 b4 e4 g4 h4 f6 h2 g5 h3 g6 d3 g7 a3 c5 e3 b6 d2 b5 e2 c6 e1N b7 a2 b6 Na6 b8N Nf3 b7 Bc5 c7 Ng5 Be2 Ba7 Nc6 Qe7 b8Q Qf7+ Kd6 Qc4 Qb6 Bb7 Nb8 Bd5 Na3 Qb5 Qe1 d1R Nf3 Rd3 Nc6 Rb8 Rf1 h1N Nh4 h2 Bb2 Ng3 Nc4 h1N Qb1 Rd8 c8Q Nc7 Qca6 Na8 Bg4 Rc8 Be5 Qa5 Re1 Qb5 Re3 Ne2 Qb2 Qa5 Rc1 a1R Q6d4 Ra2 Qa1 Rb2 Qe4 Rbd2 Qh7 Rc2 Qh6 Nhg3 Ng6 Be6+ Bd4 Ne7 Re4 Nd5 Bb2 Rf8 g8Q Qb5 Qgh7 Rg8 N6a5 Kd8 f7 Re8 f8Q Qb7 Qff7 Rf8 Bh8 Qb5 Qfg7 Nf5+ Ke5 Qc5 Nb7+ Kc7 Nd8 Nh4 Re3 Kb8 Re4 Qd4+ Kd6 Nf6+ Ke7 Kc7 Re3 Qd5 Re5
R2nQ2b/1p1nRQR1/B3b3/q1NPn1qn/7R/4k1rN/1n2r2Q/1KB3Rn b - - 0 1 illegal: No possible last move
K1b2Rn1/PnBQ4/r1RQn1b1/B1bqb1p1/1N6/NknB4/2Q4B/2r1B1b1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 f4 b5 h4 e5 d4+ Kd6 a4 g5 f6 c5 a5 g3 f5 b3 h5 g2 a6 b2 f7 c4 a7 b4 h6 c3 f6 c2 h7 b3 Bd3 Bb7 Na3 b1N Ne2 g1N Nf4 b2 Rh6 Na6 Bd2 c1B Be1 Qb6 Qc2 Qc5 Rg6 Be7 f8Q Nh3 Qe8 Rc8 f7+ Bf6 Qb5 Be3 Qba4 Bg1 f8Q+ Kc7 Qae8 Kb6 Qd7 Qc6 Qfd6 Nc3+ Kf5 Ka5 Ke6 e4 Rc1 Be5 Rf6 b1B Rf8 Nf6 Ke7 Rg8 h8B e3 Bg7 Rc7 Kd8 e2 Bh8 Qb5 Bg7 Rc4 Bh8 Nc5 Kc7 Kb4 Kb8 Bc8+ Ka8 Rg6 Bg7 Ng8 Bf6 Ba2 Bd8 Nf2 Bc7 Ne4 Qa6 Bb3 Qd2 Re6 Qe8 Bd6 Bb1 Bc2 Qg6 Qa5 Nd3+ Kb3 Bb8 Bdh2 d6 Nb5 d5 Be5 d7 Ned6 d8B Bf6 Nb4 Ndb7 Bh2 Be5 d6 Rf6 Qg7 Bg6 d7 Rd6 Be4 Ne6 Bd3 Rb6 Bc7 Rc5 Bh4 e1B Qe2 Bd2 Be1 Bde3 Rc4 Rd6 Qc6 B3d4 Qd5 Ra6 Qd6 Nc3 Qh7 Nb1 Qg2 Qb5 Ba5 Qc6 d8B Qd5 Qhd7 Bdf2 Bdc7 Rcc6 Rg4 Rc1 Rc4 Nc3 Rc6 Bc5 Qc2+
1RK5/2n5/3rn1B1/rbQ1QnrP/nB2QR2/qR4N1/1bQQp1b1/1k2rN2 b - - 0 1 illegal: No possible last move, all moves rejected
BK3b1n/4kn1B/1bbr3R/1RNR3p/4Nr2/RR5P/1nn4r/1Q1Qrq1N b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 Kb2 c5 Ka3 a5 Ka4 f5 g4 f3 e4 c4 d4 f4 e5 h6 g5 c3 b6 c2 Kb5 c1N b4 a4 b7 a3 g6 a2 d6 Qh4 Kb6 Na6 b8R Qh5 b5 Kd8 d7 Qh4 g7 Nc7 d5 Ra3 e6 Qf6 Nd2 Ke7 d8R Ne8 Ne4 Rd3 Ka7 Bd7 b6 Bc6 b7 Nd6 Nh3 Nf7 Bg2 f1N Nhf2 Ne3 Rb1 a1B Rb3 Qf5 Ra8 Bc3 b8R Nc2 R8b5 Ba5 Kb8 Bb6 Raa3 Rd2 Nc5 Nd3 Qb1 Nb2 Rd6 Qf6 h3 h5 Rd1 Rh6 Nh1 f2 Be4 f1R Bg2 Ke8 e7 f3 Re6 f2 d6 Nh8 d7+ Kf7 e8N Re1 d8Q f1R Bd5 Qf3 Nf6 Rh2 Nfe4 Qd3 Qd6 Rf4 Rd2 Qf1 Qd8 Bd7 Ba8 Bc6 Rd5 Rg6 Qd6 Nh6 Rf6+ Ke8 g8B N6f7 Bh7 Rh6 Rg5 Rg6 Qdd1 Ke7 Rd6 Rgf6 Rg6 Re6 Rd5 Rd6 Rh6
1R1QbN2/1r2r1nk/Qb4Pn/4q3/1K1bB3/Rp2Q1B1/rB1NBBb1/4r2n b - - 0 1 illegal: No possible last move
Q4BB1/1k1NR1p1/1rn3NQ/4Pbn1/1n1NnN2/1r2R1R1/3r1b2/KN1b1r1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 a5 Kc3 c5 h4 Kc7 b4 f5 Kb2 g3 e4 a4 b6+ Kb7 e5 g2 b5 c4 d6 f3 d5 f4 d7 f2 h5 f3 h6 Nf6 h7 Ne4 d6 Qe8 d8R Qh5 d7 Nc6 Rh3 Ra6 Qd2 Bc5 Ne2 g1N Ra3 c3+ Ka1 c2 Rg3 Nh3 Re3 a3 Nf4 a2 Re8 Nhg5 d8Q Qh1 Bc4 f1R Ba3 c1N Bg8 f2 Re7+ Bd7 Qd6 Nd3 Qh6 Ndb4 Qe8 Rd1 Qf8 f1B Qe8 Ra8 Qd8 Rb8 Qe8 Ka8 b7+ Ka7 Qd8 Be2 b6+ Ka6 Qe8 Rd2 Qd8 Bd1 Qf8 Ra8 b8N+ Kb7 Qd8 Ra6 Qe8 Ka8 b7+ Ka7 Qf8 Bf5 Nd7 Rb6 b8N Kb7 Qd8 Na7 Nc6 Bd4+ Rc3 Bf2 Nd4 Nac6 Rcf3 Qh4 Re3 Qh1 Bc4 Rf8 h8N Rf6 Nhg6 Rd6 Nde6 R6d3 Nd4 Rb3 Bg8 Nd5 Nh4 Be1 Re8 Rc2 Bf8 Ndb4 Nhg6 Rf2 Re6 Rf1 Re7 Bf2 Nh4 Rd3 Kb2 a1R Qe8 Raa3 Nhg6 Rab3+ Ka1 Rd2 Qa8+
5N2/RbQ4B/5r1N/1KB1q2b/2QbnB1n/1p1P1B1B/k1N1b1Rq/rqq5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 b5 a4 c5 g4 e5 f4 h5 f6 b3 a5 c4+ Kc3 h3 f5 b4+ Kb2 h4 g5 h2 d6 e4 d7 h3 a6 e3 a7 e2 Ra5 e1Q Bd3 Nh6 Ra3 Qc7 d8Q Bg7 Bf1 Na6 Nf3 Qee5+ Nd4 Nc5 Qc2 Rf8 Rg1 h1B Rg2 h2 d3 Ne4 Bd2 Bb7 Bf4 Bh8 Ra6 Qb8 Na3 c3+ Kb1 b2 Ka2 Bg7 Kb3 b1Q+ Ka4 b3 Qc7+ Ke8 Qc1 c2 g6 Bh8 Qc4 Kd7 f7 Bf6 Ra5 Kd6 g7 Qc7 g8B Qb8 Rg6 Bf3 Bh3 h1B Bh7 Bh5 Rg2 Bg7 f6 Nf5 Kb4 Nh4 Ra4 Be2 Qc7+ Kd5 Nf5 Bh5 Nh6 Kd4 Qd2 c1Q Qdc2 Re8 f8B Re6 f7 Rf6 Be7 Bh8 f8N Bg7 Rh2 B1f3 Rg2 Be2 Ra6 Bh8 Ka4 Bg7 Q2c6 Bh8 Bc5+ Kc3 Kb5 Kb2 Qe6 Ka2 Qc4 Qc8 Ra5 Qg4 Ra4 Qg3 Ra5 Qh2 Ra6 Re8 a8B Ree6 Ra5 Ra6 Nc2+ Kb2 Q4f7 Qd5 Nd4 Rf5 Rg7 Bc6+ Kb4 Nd6 Rb5 Ra1 Rg2 Ka2 Nc2 Bd4 Rb7 Qe5 Qc4 Rf6 Ka5 Be4 Ra7 Bd5 Bc6 Bdf3 Bcd7 Bb7 Bdg4 Ne4 Bf3 Bc8 Ka4 Bb7 Kb5+
2Q3q1/r1B1b3/NB4R1/KQR1n3/BQP1Bn1q/3q4/1np1q1Nk/1n1b2Br b - - 0 1 illegal: No proof kernel
r1Bb3Q/1b1r4/b2qB1kr/2P2NNn/7N/1p1Rn1rq/4K1b1/BRNQ3N b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 a4 d5 c4 e5 f4 b5 h6 g5 f6 g4 h5 g3 a5 d3 h7 d2+ Ke2 e4 c5 e3 a6 g2 f5 b3 a7 b4 h6 d4 Ra3 b2 Nc3 b1Q Na2 Qe4 Rd3 b3 Nf3 g1R Bb2 Be7 Bh3 Qg4 Ba1 Na6 Nc1 Rg3 Rg1 Nb4 Re1 Rb8 a8B Ba6 Bb7 Nc2 Bc8 Qd6 Rg1 Bd8 Rh1 Kf8 f7 Ra8 Rf1 Ke7 f8N Kf7 Ne6 Nf6 Nf4 Nh5 f6 Qge6 Bg4 Bb7 Nh3 Kg6 f7 Qf5 Re1 Qfe6 Kf1 e2+ Kf2 Qed7 Be6 Ne3 Rf1 e1R f8N+ Kf6 Ng6 Ba6 Rc3 d3 Ne7 Bb7 Nf5 Kg6 Qe2 d1B Qd2 Rg8 h8Q Rg7 h7 Be2 Qd1 d2 Rd3 Re7 Rg1 Bf1 Rh1 Bg2 Rg1 Rf1+ Ke2 Rf7 Nf2 Rg7 Bd5 Q7e6 Nh1 Rd7 N5d4 Qh3 Be6 Ba6 Nf5 Bb7 Nh2 Rf4 Nf3 Rc4 Qb2 Rh4 h8N+ Kh7 Nf7 Kg6 N7g5 Ba6 Qf1 Bb7 Qh8 d1B+ Kf2 Bc2 Qd1 Ba6 Ke2 Bb7 Rd4 Bce4 Rd2 Ba6+ Rd3 Beb7 Qf1 Rg7 Na2 Nf6 Qe1 Rc7 Qd2 Rh6 Rb1 Nh5 Qd1 Re7 Nc1 Rd7 N3h4+
n4r1b/2BB3K/1B2NQ2/Pq1n1p1B/2b1RnNb/1qRb4/1kQn4/r4BN1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 Kc4 d4 f5+ Ke5 c5 g4 b5 g6 h5 g5 f3 d6 f2 d5 b3 d7 b2 d6 b4 g7 b3 g6 h4 Bg5 h3 Bd2 h2 Ra3 Qb6 d8B Be7 d7 Ba6 Nc3 b1B e4+ Bd3 Nb5 b2 Ba5 b1N Nc7 Nf6 g8N Qb3 g7 Nd2 Bb6 Kc3 Ne6 c4 Nh6 Rf8 g8B Nd5 Bdc7 Kb2 d8Q c3 Ng4 c2 Bf7 c1B Bh5 Bh4 Qe7 Bac4 Qf6 Na6 a5 Rac8 Kd4 Nf4 e5 Qb5 Rc3 Qb3 Bb8 Nc7 Ke3 Na8 Kd4 Rc5 B8c7 Rb5 Ke3 Rb4 Kd4 Ra4 Ke3 Nd5+ Kd4 Nb4 Ke3 Ra1 Kf4 Bg3+ Kg5 Nd5 Kh6 Bh4 Kh7 Nf4 Bh3 f1N Bg2 Ne3 Bf1 Ra2 Ng7 Ra3 e6 Ned5 e7 Ra1 e8B Qb5 Ne6 Qb3 Nh3 Qb5 Rg1 h1Q Bd7 Qf3 Rg3 Qe3 Ng1 Qf3 Qa4 Qd1 Re3 Qdb3 Re1 Kb1 Re4 Bb2 Rc2 Be5 Rc1+ Kb2 Rc3 Qa2 Qd1 Qab3 Qd8 Bg7 Qf6 Bh8 Qc2+
bQ1rk3/1B3n1b/Kbpq3Q/3Q1q1r/1Q2qR1N/1N1Q4/3qPR2/Rb1nB3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 h5 b4 a5 d4 f5 Kd2 f3 Kc3 a4 Kc4 h3 b6 h2 Kb5 a3 d6 a2 g5 f2 d5 f4 b7 f3 g6 h4 g7 h3 Bg2 f1B Bh6 f2 Qe1 Nd7 b8Q Ndf6 Nf3 Bf5 Bd2 Bh7 Nh4 Ne4 Qc1 Nh6 g8R Nf7 Rg4 Be7 Bf3 Bg2 Be1 f1Q Qh6 Nf2 Nd2 Nd1 Nb3 Bf8 Be4 Qf5 Rf1 h1B Rgf4 h2 R1f2 Bg7 Qb7 Bd4 Qb6 Rb8 Ka6 Be3 Qa5 Bb6 b5 Qe7 Qc3 Rd8 Qb4 Bh3 Bg2 Qe3 Bf3 Qd2 Be4 B1g2 Bf3 h1Q Be4 Ba5 b6 Bf3 b7 Bb6 b8Q Bhg2 Bd3 Be4 Bc4 Bb1 Bb5+ Qd7 Bc6 Qh3 Ba8 Qhf5 Bb7 Qde6 Nc5 Qee4 Nb3 Rg8 Qc3 Rg5 d7+ Ke7 Qa5 Rh5 Qb4+ Bc5 Qa5 Rf8 Ba8 Qed4 Qc3 Ba7 Qcb4+ Qc5 Bc6 Bb6 Ba8 Bbe4 Rb1 a1Q+ Na5 Qg7 Ra1 Bb1 Nb3 Re8 d8Q+ Kf8 Qhg5 Qgd4 d6 Bd5 d7 Qde4 Bb7 Qce7 Bc8 Ba8 Bb7 c6 Qg6 Qec5 Qgf6 Qce7 Qe6 Qec5 Qdf6 Qe7 d8Q Qec5 Qdd4 Qd6 Qed5 Rd8 Qh6+ Ke8 Qd3
1qb1R1KR/2BQ1nN1/bpB1b3/4Q2r/r5N1/1N2n1N1/Pb3N1r/kr1Rq3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 e5+ f6 c5 g4 h5 Kg6 b3 Kf7 b6 g5 h3 d6 b2 d7 e4 g6 h4 f5 h2 g7 h3 Qh5 e3 Bg2 c4 Nc3 b1R Bc6 e2 Nd1 e1Q Nf2 c3 Ne2+ Kc4 d4 c2 d5 Rb3 d6 Na6 Bf4 c1R Ng3 Rc2 Rd1 Kc3 Qe2 Kb2 Qe5+ Qc3 Rhe1 h1B Re4 h2 Ree1 Ne7 g8N Nd5 Nh6 Nb8 Nhg4 Rh5 Kg8 Ra4 f7 Ne3 f6 Bg7+ f8R Bd5+ f7 h1B Re8 Bhf3 Rh1 Be6 Rh3 Qc7 d8Q Be2 d7 Bea6 Qe7 Qd6 d8N Nd7 Nb7 Qb8 Na5 Rbb4 Nb3 Re2 Q5g5 Qe1 Bc7 Ne5 Qd7 Rc2 Nfe4 Rh2 Nef2 Rc4 Qf4 Rc1 Qe4 Rb1 Qf5 Rg5 Rh8 Rgh5 Qf4 Bf5 f8N Nf7 Qg5 Be6 Qa5 Bc3 Qe5 Bd4 Ng6 Bc3 Nh4 Bd4 Nhf5 Bc3 Nd2 Ka1 Ng7 Bb2 Nb3+
N1b3RK/R4QpB/nn2Qq2/1r4q1/1Q1B1rB1/3Nr1q1/P2QQq1b/2r2k2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kc4 d4 c5 d6 b5 d5 f6 h6 f3 h5 f2 h7 b3 d7 b4 Kf5 b2 Kg6 b3 e4+ Kb4 h6 c4 e5 c3 e6 f5 e7 f4 e8B f3 d6 c2 Be2 f1Q Nd2 Kc3 Nh3 b1Q Bb2+ Kb4 Nf4 c1Q+ Nd3+ Kb5 Nc4 f2 Bd4 b2 Nb6 Ba6 Bg4 Qe7 Qf3 Nf6 d8Q+ Nfd7 Qc7 Bc8 Qc3 Ra3 Na8 Qbc2 Rb1 Qee1 Rh4 Rg8 h8Q Qg5+ Kh7 Na6 Bg6 Nb6 d7 Bd6 d8Q Rf8 Qg8 Bh2 Qe6 Rf4 Kh8 Qee5 Rd1 b1R h7 Qb3 Qdg8 Qef6 Qgf7 Qg2 B6f5 f1R Qd2 Qf2 Rc1 Rd1 Rc7 Rdc1 Ra7 Qc3 Kg8 Qc7 h8Q Qce5 Bh7 Qee1 Nb2 Re3 Nd3 Qeg1 Rh6 Qgg3 Rh5 Qc5 Rd5 Kc4 Rd8+ Qd5 Be4 Rb5 Qh4 Rd1 Kh8 Rc1 Qde2 Rd1 Rg8 Rc1 Bc5 Kc3 Bh7 Qdf5 Qe1+ Kc2 Bd4 Q5g5 Qg1 Kd2 Qh6 Rc7 Qb1 Rc1 Qb4+ Rc3 Nc5 Ke1 Nd3+ Kf1 Qf5 Rc1 Q5e6 Qc5 Qg5 Qce7 Qgd5 Qd8 Qdd6 Qde7 Qd2 Qg5 Q6b4 Qef6 Qfe2+
1Rb4r/B1b1pN1P/1NQqQ3/N3nb2/R1nb4/2kNn3/rQq2N1n/6KB b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 f4 Kf7 Kf2 Kf6 b4 a5 c4 d5 h4 g5 b6 d3 b7 d4 h5 a4 c5 d2 c6 a3 h6 a2 b5 d3 b6 Na6 b8Q Be6 c7 Qd6 c8Q Ra7 b7 Bg7 h7 Nb4 Nh3 g3+ Kg1 g4 Qe2 d1N Nf2 g2 Be3 d2 Qc6 Nc2 Nc3 Na3 Na4 Nc4 Nc5 Bc8 Ncd3 Nh6 Rh3 Ra8 Ba7 Nf7 Rh4 Bh6 Rb1 a1B Rb5 Bd4 Qe6+ Kg7 Rb4 Nde3 f6+ Kg6 Rb2 d1B f5+ Kg5 Rb5 Nfe5 f7 Bc2 f6 Kg6 Rb6 Bf4 f8N+ Kg5 f7 Bb1 Nc5 Bf5 Nfd7 Bg3 f8N Kf4 Qb5 Kf3 Ncd3 Bf4 Ng6 Bg3 Nh3 Ke4 Qb2 Bf4 Qc7 Bg3 b8N Bf4 Kf2 g1N Nc6 Nf3 Na5 Nh2 Rb8 g3+ Kg1 g2 Nb6 Bc5 Qe2 Kd4 Nhf2 Kc3 Qc6 Bd4 Rg4 Rd8 Nh8 Bg3 Nf7 Rh8 Nd7 Bf4 Bb6 Ra6 Ba7 Bg3 Nb6 Bf4 Nb7 Ra2 Na5 Qb4 Qcd7 Nd2 Qe1 Bc5 Qdc6 Ng6 Qe2 Bc7 Nh1 Ne5 Kf2 Qd4 Re4 Qd6 Rb4 Ndc4 Ra4 Ra1 Qa2 Bd4 Qb1 Ra2+ Be2 Ra3 Bf3 g1Q+ Ke2 Bc5 Nhf2 Qc1 Bh1 Qc2+ Ke1 Ra2 Qc1 Nhg4 Qb1 Bd4 Qbb5 Nd5 Kf1 Nde3+ Kg1 Nh2 Qb2+
3r1Nk1/Pb6/QqRr1q1q/5pqb/2Nbb1RN/4n1B1/KN4BQ/R3n2N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 f5 a4 Kf7 e4 g5 d4 c5 Kd2 b5 Kc2 g4 Kb3 c4+ Ka2 c3 d6 c2 h6 f3 a5 f2 d7 g3 h5 g2 a6 Qe8 d8N+ Ke7 e5 Bb7 a7 Na6 d5 Qg6 e6 Nc5 h7 Nd7 h6 Qf6 Qd3 Nc5 Nc3 Bg7 d6+ Kf8 d7 Ne7 Nge2 g1Q Na4 Qgg5 Nb2 Nd5 Bf4 c1Q Bg2 f1B Rg1 Ne3 Ng3 Be2 Nh1 Bh5 Bg3 Qd2 Nf7 Rd8 Ne5 Qc1 Qa3 Nd3 Nec4 Ne1 e7+ Kf7 Qa6 b3+ Ka3 Rhf8 h8N+ Kg8 e8R Qd2 Ng6 b4+ Ka4 Bh8 Re6 Rfe8 Rc6 Re6 Nh4 Rd6 Nd1 b2 Kb3 b1B Ndb2 Be4 h7+ Kf8 Ka2 b3+ Ka3 Bg7 h8N Kg8 N8g6 Bh8 Nf8 Qgh6 Rf1 Qhg5 Rf4 Qgh6 Rg4+ Bg7 Nd1 b2 Kb3 b1Q+ Ndb2 Qbd3+ Ka2 Qdd4 Bh2 Qb6 Bg3 Rb8 d8Q Qhg5 Qc7 Rbd8 Bf3 Qh2 Nhg6 Qhh4 Bg2 Qh6 Qb8 Qfg5 Qc7 Bd4 Qb8 Qf6 Qc7 Q4g5 Nh4 Rd5 Qf4 R5d6 Qf2 Qc7 Qg1 Qb6 Qh2
b2BK2N/2q2R2/r2B1N1q/1nQr3Q/1B2nrBp/2Q3nP/1k2Rr2/3B1qr1 b - - 0 1 illegal: No possible last move
1BB2NK1/1N1Bq2r/2q1pN1r/2Q2kbb/7R/1r1qb3/1N2P1n1/rQR1N2r b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Ra4 Na6 Ra1 Nc5 Kd2 Ne4+ Ke1 fxg4 Ra5 g3 Ra2 g4 Ra1 Ng5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 Kf7 Kd3 Ke6 Kc4 a5 b4 h5 f4 d3 g6 g2 b6 a4 g7 a3 b5 g3 b7 d2 b8Q a2 b6 h4 b7 h3 Nc3 h2 Nf3 g1B Ne1 g2 Qc7 Be3 b8N g1Q Qc5 Ra3 Na4 Qg2 Nb2 Nh6 g8N Nf5 Nc6 Rh6 Na5 Nh4 Nb7 Qc6 Nf6 Ng2 c3 Rb3 f5+ Kf7 Qc2 d1Q Qb1 Rh7 Bd2 Bfh6 Bc1 Beg5 Bf4 Qc2 Bb8 d5+ Kd4 Qd3+ Ke5 d4 c4 Be3 Qa5 Bhg5 c5 Bd7 Qb6 Be8 Qc7 Nh4 Bh3 Ng2 Qd6 Kg7 Ke6 Bh5 Bg4 Qda6 Bh3 d3 Bg4 d2 Bh3 Qcb5 c6 d1R c7 Qd3 c8B Qa4 Qc5 Rd2 Rf1 h1R Rf4 Rh6 Rh4 Rc2 Qa3 Rc7 Qc5 Qab5 Qbc2 Qa4 Rc1 a1R Qb1 Qc6+ Nd6 Rg6 Bg4 Kh6 Kf7 Rd7 Nb7 Qdc7 Bf3 e6+ Kf8 Rh7 Be4 Q6b6 Bc6 Qb4 B6d7 Qc6 Ne4 Qa3 f6 Qa7 f7 Rf6 Qb4 Kg6 Kg8 Kf5 f8N Rfh6 Nf6 Qa3 Qc3 Qe7 Qc5+
QK2N1nn/p1NQ1B1b/3B1b2/5nRQ/1nQn2qR/P1k2n2/2q1r2n/2R2Q2 b - - 0 1 legal: proof: g4 d5 h4 f5 b4 fxg4 e4 c5 bxc5 dxe4 Na3 b5 Qe2 g5 Qd3 g3 Qe2 g4 Nb1 Na6 Qf3 Rb8 Qd1 Rb6 Bh3 Rg6 Bf1 Rg5 hxg5 Bd7 Bd3 Be6 Bf1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 h5 a3 e3 g6 e2 c6 Kc4 Ke5 g2 f4 g3 d5 b4 c7 h4 d6 b3 g7 b2 f5 h3 f6 h2 f7 Bf5 d7 Bh7 Nd2+ Kc3 Nh3 b1Q Nc4 g1N c8Q e1N Ng5 g2 Qh5 Nb4 Ne6 Nh3 Qa8 g1N Nc7 Qc8 d8Q Nf4 Qd7 Nge2 Nd6 Nd4 Bc4 e6 Nde8 Be7 f8Q Bf6+ Kd6 e5 Qff7 Ng6 Bf4 e4 Qf8 e3 Bf7 Qa2 Rc1 e2 Be5 Nf3 Bg3 Kd2 c4 e1N c5 Qc2 c6 Kc3 Be5 Ned3 Bg3 Nde5 Bf4 Ng4 Bg3 Qa6 Be5 Qe2 Bg3 N8h6 g8R Qd1 Rg7 Rg8 Bf4 Nh8 Rg5 Rg7 Re1 h1N Re4 Qg1 Bg3 Ngh2 Rh4 Rg8 Nd5+ Kd3 Kc7 Ne5 Qc5 Na2 Rf5 Nb4 Kb8 Rg6 Qce7 Nef3 c7 Ng8 Bd6 Rg2 c8Q Ng3 Rg5 Ngf5 Qe1 Re2 Qf1 Qg4 Qcc6 Kd2 Ndc7 Kd3 Qb5+ Kc3 Qc4+
1Q3N1n/nr1R1qnK/1b1n2r1/N1N5/1B3p1n/1BnNq2r/B1R2P2/kQ5N b - - 0 1 illegal: No possible last move, all moves rejected
BK2nR1r/2rQ4/p1bQ1Bbk/P1Bn1rb1/b1b2R2/N5bb/1QB1B3/N7 b - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Qd6 h5 Qg6 hxg6 Nb8 Ke2 e5 a4 h5 c4 b5 d4 f5 d5 e3 Kd3 e4+ Kd4 e2 Ke5 e1R a5 b4 c6 b3 c7 a6 g7 Kf7 c5 Kg6 d6 h4 c6 f3 d7 b2 d8B f2 Be7 f4 Kd6 h3 Nf3 h2 Ra4 e3 Nd4 e2 Na3 b1B Be3 f3 Ndc2 Nf6 g8B Bh3 c8B Nbd7 Kc7 Nb6 Bd5 Bh6 Na1 Ra7+ Kb8 Ne8 c7 Bd7 Rg4 Ba4 B3c5 Be4 Rhg1 h1B Bf5+ Kh5 c8Q Rc7 g6 Bg5 g7 Kh6 g8Q Bb1 Bd7 Bg6 Ba8 Bg2 Qd3 Rd1 Bb5 e1B Qd6 Rd5 Bfd3 f1B Qcd7 Bg3 Bc2 f2 Re4 Bd3 Rf1 Bh3 Rd4 Be4 Be2 Re5 Rb4 Bec6 Qa2 Nd5 Qb2 Bg4 Rf4 Bh3 Rf8 Rf5 Rc1 Bh2 Bf6 Bg3 Bc4 f1B Bb5 Bc4 Rf1 Ba2 Be2 Bc4 Rf4
3Q2K1/4r2n/1N1rrNn1/1Q2n1NQ/1p1kNn2/BP6/N5bq/rRnB2Rq b - - 0 1 legal: proof: f4 b5 h4 g5 c4 e5 a4 exf4 a5 d5 cxd5 gxh4 Ra4 Bc5 Ra1 Bb6 axb6 Bh3 Ra4 Bf5 Ra1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 h5 e4 f5 b7 b4 d3 h3 g5 a4 d6 h4 g6 f3 b3 f4 g7 h2 d7 f2 Ke6 a3 Kf7 h3 e5 a2 e6 f3 e7 Rh6 e8N Nf6 g8Q Nc6 b8Q Ne5+ Kf8 Bb7 Bb2 Ra6 Qa8 Rd6 Be2 f1N Qb8 f2 Na3 Nd2 Nc4 f1N Rb1 a1R Ba3 Bg2 Qb5+ Kd4 Nb6 Qb8 d8N c5 Nf7 c4 Ng5 c3 Ne4 c2 Qg6 c1N Qh5 Nh7+ Kg8 Qc7 N8f6 Ndc4 Qd2 Nfe3 Bd1 Nd5 Qdg5 Nf4 Ne2+ Ke3 d4 Ng6 d5 Nce5 N2c3 Kd4 Rg1 h1R Na2 h2 Qgh4 Re6 d6 Qc2 d7 Qb2 Re1 Rf1 d8N h1Q Nf7 Rg1 Re3 Re1 Rg3 Qf2 Nfg5 Qfg1 Na8 Qgh2 Nb6 Rd6 Ne8 Bh3 Nf2 Nc6 Rg1 Nh8 Nf7 Bg2 Qd8 Re7 Ng5 Rhe6 Nf6 Ne5 N2e4 Nhg6 Qc7 Ngf8 Qcd7 N8g6 Qd8
rrn3b1/1kbNNQ2/1Br1Nb1N/p2B4/1bRr4/P3K3/3Q3n/2rRBb1N b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Qf3 Qd5 Qe2 fxg4 Qd1 g3 Qe2 g4 Qd1 Qg5 hxg5 Bf5 Be2 Bd7 Bf1 Bc8 Ke2 Kd8 f4 Kc7 c4 b5 d4 h5 c6 a5 g6 e5 g7 e3 d5 g2 a3 g3 c5 h4 f5 h3 f6 b4 f7 b3 Nd2 e4 Qe1 h2 Ra2 b2 Nb3 b1B Nd4 Bd6 f8Q Nf6 g8N Be6 Nb3 Ng4 Qd2 Nd7 Rc2 Nb6 Nh3 g1B Nh6 g2 Nd4 Bg8 Rc4 Nc8 Ne6+ Kb8 c7+ Kb7 Nf2 Bd3+ Kd1 Rb8 Qf7 e2+ Ke1 Be7 d6 Bf6 d7 Ra8 d8B Rb8 Qe3 Ra8 Kd2 e1R Bb2 Rc1 Bc3 Rb8 Be2 Ra8 Bd1 Bf1 Bb3 Rb8 Qe2 e3+ Kd3 Ra8 Be1 Rd1+ Ke4 Rd4+ Kf3 Rb8 Qd2 e2 c6+ Ka8 Ne4 Bf2 Ng3 g1R Ba2 Rg2 Rg1 h1R Bb3 Be3 Ba2 Bf4 Bb3 Ne7 c8N Bc7 Nb6+ Ka7 Ba2 Nh2+ Ke3 Nc8 Nd7 Rf2 Bb3 Rf5 Ba2 Rc5 Bb3 Bce5 c7 Rc6 Ba2 Kb7 Bb3 Ne7 c8N Bc7 Ncb6 Nc8 Nd5 Bd6 Bb6 Bc7 Ne7 Ra8 Rc1 Rb8 Bd5 Ra8 Bf2 e1B Rc4 Rb8 Qa2 Bb4 Qd2 Bh3 Ra1 Rc1 Nh1 Bf1 Be1 Ra8 Ra2 Nd6 Rac2 Bh7 Qd3 Rhb8 Rd2 Bg8 Rd1 Nc8 Qd2
4bk2/Q5nn/Nbpnq2q/n6Q/1BPqQ1Rb/2Q2B2/br2RQN1/2B2K2 b - - 0 1 legal: proof: g4 d5 h4 f5 a4 fxg4 e4 b5 axb5 dxe4 Ke2 a5 Qe1 g5 Qd1 g3 Ke1 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bf5 Qf3 Be6 Qd1 Bc8 d4 h5 f4 e5 b4 a4 f5 h4 c3 a3 b6 c6 f6 h3 g6 h2 b5 e3 d5 e4 b7 a2 b6 e2 g7 g2 d6 g3 Bb2 Nd7 b8B Ne7 g8Q Ne5 b7 Nf7 Qc1 Bd7 Na3 Nf5 Ba7 Ng7 Qh7 Be7 b8Q Kf8 Nc2 Be8 d7 Nd6 f7 Bh4 Qh5 Qf6 d8Q Qh6 Nh3 g1Q Bc5 Qd4 Rg1 h1B Nf4 Bg2 Rb1 a1N Nb4 Nb3 Na6 Na5 Qa7 Bf3 Qe3 g2+ Qf2 Bg4 Bb4 Be6 Qf6 Ba2 c4 Rg8 Bc1 Rh8 Rh1 g1B Bg2 Rh7 Rb3 Rh8 Rd3 Rh7 Bf3 Rh8 Kd2 e1N Ke2 e3 Ng2 Rh7 Kf1 Rh8 Be4 Nf3 Rd2 Ng5 Bf3 Nh7 Rh3 Rg8 Rg3 Rh8 Rg4 e2+ Ke1 Qe4 Qc3 Rg8 Qg3 Bb6 Qce5 Qd4 Qe4 Nf5 Qf2 Rg5 Rb2 Ng7 Rc2 Rb5 Rb2 Bg5 Qfe3 Be7 Qc3 Bh4+ Rg3 Rd5 Qb1 Qdf4 Bg4 Rd2 Qbf5 Qe5 Qf2 Qef4 Bf3 Qd4 Rg4 Rc2 Nc7 Ke7 f8Q+ Kd7 Qff5+ Ke7 Qfd3 Kf8 Na6 Bg5 Qfe3 Rd2 Kf2 Bh4+ Kg1 e1Q+ Qf1 Qe2 Qff2 Rc2 Qed3 Qee6 Kf1 Re2 Rd2 Qf7 Qe4 Qfe6 Rd3 Rd2 Re3 Rb2 Re2
B3Q2Q/Q2Q1n2/n2Bqbq1/5bR1/Q2R1PN1/6pr/rkpK4/nq1RNr2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 Kf7 f4 a5 h4 g5 b4 c5 d6 Ke6 d7 Kd5 b6 e5 b7 e3 b5 e4 h5 e2 h6 Kc4 h7 g3 d5 g4 b6 a4 d6 g2 Rh4 a3 Bd2 a2 Bb4 g3 Nc3 Bg7 Rg4 Nh6 Kd2 Qg8 d8R Na6 b8Q Nf7 b7 Bf6 d7 Qg6 Nf3 g1Q Bg2 e1R Rg5 Rf1 Nd5 Qh1 Rb1 a1N Qa4 Qhh6 Ne1 e3+ Kd1 e2+ Kd2 Kd4 Ne3 c4 Rd1 Ra7 Ng4 c3+ Kc1+ Kc4 Bc6 c2 Kd2 Ra8 Qa7 Qh3 b8Q Qhh6 Qab5+ Kb3 Qa4+ Kb2 Qbc7 Qh1 Bd6 Qhe4 Bb7 Qe6 Bd5 Bb7 Bh1 Be4 Qcc6 Bf5 Qcc7 Rg8 h8Q Rg7 Qc8 Rh7 Qcc6 Rh3 Qce4 Qa2 Qee8 Qb1 Bb7 Rb8 Bf3 Rb3 Ba8 Ra3 Rc8 Ra2 d8Q Nc7 Qdd7 Na6 Rc4 Rf2 Nf3 Rf1 Re4 e1Q+ Kd3 Qb4 Ne1 Qb3+ Kd2 Qe6 Rd4
3rq1b1/2nB4/2B2K1B/5Q2/1p2p3/n1P1BqNb/3rRBRn/br1kN1RQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 f4 b5 h4 e5 a4 b3 h6 g4 h5 d3 c3 d2 h7 b2 a5 g3 a6 g2 a7 Ba3 h6 b4 Rh2 Qe8 Nf3 g1R Bh3 Na6 Re2 Nc7 Ne1 d6 Qc2 d1Q Nd2 b1N Nf1 Bb2 Ng3 Na3 Be3 Rb8 Rb1 Ba1 a8B Rg2 Bc6 d5+ Kf3 d4 Kg4 d3 Bf2 Ke7 Kg5 Kd6 f6 d2 f7 Nf6 f8R Ng4 f5 Nh2 f6 e4 f7 Ke5 Rg8 Bd7 f8B Rd8 Rb2 Bc8 Bhd7 Rg1 Be3 Rh1 Rg2 Qf3 Bfc5 d1B Qf2 Ba4 Re2 Bb3 Rg6 Rg8 h8B+ Rg7 h7 Bg8 Bb5 Kd5 Bbc6+ Kc4 Bb6 Rf7 Bg7 Kb3 h8Q Rf6 Bbc5 Rd6 Bh6 Rd2 Qh7 Rf1 Qg1 Kb2 Qh1 Kc1 Qf7 Kd1 Qf5 Rf2 Ba7 Rb2 Kf6 Rb1 Ra2 Rd2 Bf2 Ba6 Bae3 Bf1 Rg1 Bh3 Rg5 Rd4 Re2 Rd3 Nh5 Rd5 R5g2 Rd2 Ng3
q1r4b/2n2b2/NR1rQBk1/B2N3B/PR4N1/n2p2BQ/Kn2pbr1/2qB4 b - - 0 1 illegal: No possible last move
3B1rB1/2q1bn1K/BN6/2r2P1Q/Q2R1b1p/Qn1RB1kp/1N1B3n/1r2q2b b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 g4 a5 b4 h5 Kg6 Kf4 d4+ e3 d6 e5 d5 h3 d7 h4 g5 c4 b6 c3 d6 e4 b7 a4 b5 c2 b6 a3 Bd2 c1N Nf3 a2 Ne1 Nh6 Qa4 Na6 b8B Kg4 f4 e2 b7 e3 f5+ Nb4 Ba7 Rb8 Na3 Kf4 Nd3+ Kg3 Nb2 e1B Nac4 e2 Bae3 Be7 Nb6 Rf8 Kh7 Ng4 g6 Nh2 g7 Qc7 g8B Nb3 d8Q Nc6 d7 Ne5 Rd1 a1R Qe8 Rb1 Qh5 Nf7 d8B Be6 Qa3 Rc8 b8Q Bd5 Qba8 Bf2 Q8a6 e1Q Q6a4 Be4 Bc4 Bg2 Rf1 Bh1 Ba6 Bg1 Rf4 Bf2 Bd4 Be3 Re4 Bf4 B4e3 Qb7 Rd4 Rc5 Rc1 Qb8 Rc3 Qc7 Rcd3
5q2/1rBq3n/R1nNQ3/2BQbp2/QN1Qr2R/4q2p/1K2kBrP/1Q1bb3 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 b5 axb5 g5 e3 g4 Be2 Be7 Bf3 gxf3 Qc2 Bd6 Qd1 Bf8 d4 Ke7 Kd2 Kf6 Kc3 Kf5 g4+ Ke4 b4 a5 g5 h5 b6 f5 b7 c5 b5 f2 g6 f1R d6 f3 b6 h4 d5 h3 d7 c4 g7 a4 d6 f2 Nf3 a3 Rg1 a2 Nd4 Qg5 d8B Qf6 d7 Re1 Qa4 f1Q Kb2 Kd3 e4 Ra5 e5 Ne7 g8Q Ra7 e6 Nd5 e7 Nc6 e8Q Re4 b8B Bb4 b7 Be1 Be7 Qf8 d8Q Bd7 Na3 Nf6 Nab5 Nh7 Qd5 Rg8 Bc5 Rg2+ Nc2+ Ke2 Bc7 Be6 b8Q Rb7 Nb4 c3+ Kc2 Bf7 B1e3 Bh5 Qee6 Qf2 Kb3 c2 Nd6 c1Q Rf1 Qf4 Bf2 Qce3+ Kb2 Q4h6 Qdf6 Qhg7 Qfd4 Qd7 Rg1 Rg5 Rg4 Rg6 Rh4 Rg2 Rd1 a1B+ Ka2 Bac3 Ra1 Bcd2 Kb2 Bf3 Bg1 Bg3 Bf2 Be5 Qab3 Be1 Ra6 Kf1 Qa4 Bd1 Qd8 Ke2 Qda2 Qfg7 Qb1 Qge7 Qdg8 Qf7 Qd5 Qf8 Qge6
2n2brn/br1N1Q2/B1Rqq1n1/B2P1Qp1/BN3R2/K3kr1p/B6R/1B5b b - - 0 1 illegal: No proof kernel
5n2/2KnQ2B/r1Q4R/r1P1p2b/2BBq1rR/NB2pR2/3n3b/2BNbk1q b - - 0 1 illegal: No possible last move
qR1b2KQ/1NRbb3/3Q1Q1q/2prPn2/nB3rnB/6QQ/p1Bq1k2/6N1 b - - 0 1 illegal: No possible last move, all moves rejected
QKb1RN1N/4r2R/2Q3nN/P1q1r1p1/2Bn1bpq/1RB1k2r/2N5/3nb2N b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 g5 h4 b5 d4+ Kb6 a4 c5 f4 b3 d6 c4 h5 e6 d5 Kc5 h6 b4 a5 b2 f6 c3 h7 b3 f7 c2 d7 Qe7 d8R Qe8 d6 Ne7 d7 Ra6 f5 Ra7 Na3 b1R f6 b2 Bd2 c1Q Qf3 Qc2 Rh3 Re1+ Ne2 b1N Bc3 Qc1 Nc2 Ng6+ Ke4 e5 Ra3 Be7 f8N Nc6 f7 Bd6 Rb3 Nd4 Rh2 Qe6 Re8 Qa3 d8N Re7 Rh3 Qf6 Qh1 Qf2 Qg2 Qh4 Rh1 Rg8 h8N Kc4 Qf3 Qc5 Qf6 Bb8 Qc6 Rg7 Rh3 Rh7 Rh2 Ne6 Kf5 Kd3 Ng3+ Re2 Kf6 e4 Nh1 e3 Rh3 Bf4 Rh2 Qd5 Rh3 Ke4 Rh2 Nd4 Rh3 Rg2 Bc4 e2 Rh2 e1B Rh3 Qg3 Rh5 Re5 Rh4 Rg7 Rh7 Rh2 Qc5 Nh4 Bb2 Re2 Nfe6 Re3 Ke7 Nc3 Qb6 Nd1 Bc3 Qb5 Kd6 Ng6 Kc7 Qh4 Kb8 Bfg3 Qb7+ Qc6 Qa8 Rd3 f8Q Re7 Qf6 Bf4 Ndf7 Rh3 Nh6 Qd5 Nf8 Qc6 Na1 Ke3 Qd6 Qd5 Qdc6 Qc5 Nc2+
1qB1Q1RB/rR2Kb1Q/6p1/1r4k1/n2p2qb/NNP2q2/R1Q1Q2n/Qr5b b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 a5 Ke4 Kf6 Kd5 e5 h4 g6 f4 e4 b4 g3 b6 e3 b7 a4 h5 a3 h6 g2 h7 e2 b5 e1Q b6 a2 Ne2 g1Q Na3 d3 Bb2+ Qc3 Nc1 d2 Qe2 d6 Bh3 Be7 Nb3 Kg7 f6+ Kh6 Nd4 Qce3 f5 Qeg3 f7 Ra7 f8R Qd3 f6 Nd7 Ke6 d5 b8Q Qf3 f7 Bh4 b7 Ngf6 Rg8 Ng4 Qbe5 Nh2 b8Q Qgg3 Bf5 Qgg4 f8Q+ Kh5 Qb7 Nb6+ Kf7 Bd7 Qfe8 Na4 Qbc7 Qb8 Rhb1 Be6+ Kf8 Bf7 Bc8+ Kh6 Qf6 Kh5 Ke7 Kh6 Bc3 Kh5 Rb2 Kh6 Rab1 a1R Ra2 Kh5 Rb7 Rb1 Nb3 Kh6 Rg7 Kh5 Q8b5 Rd8 Rg8 Rd6 Ba1 Rb6 Qe8 Rb5 Bb2 Be1 Qd4 Kg5 h8Q Bh4 Qh7 d1B Qed3 Qff5 Qcc4 Bf3 Qe2 Bh1 Qg1 Ra1 Bh8 d4 c3 Re1 Qd3 Qf3 Qc2 Rf1 Qgf2 Rg1 Qfe1 Rf1 Qeb1 Re1 Qbb2 Rb1 Qa1
K1N1b2R/6q1/1q2Np2/Qn1NbRQ1/r3r1rB/R3p1PR/B1R3q1/1k1bn3 b - - 0 1 illegal: No proof kernel
QKRNb1Q1/N4Rr1/3Nrp2/3q3Q/2Bn1bp1/1QnB1P2/q1b3Q1/2k1nq2 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 a4 h5 axb5 hxg4 Be3 Kd7 cxd5 Nh6 d6 Ke8 d5 Ng8 Bd4 exd4 Kd2 Kd7 Kd3 c5 Kc4 g5 b4 a5 h4 f6 e4 d3 f3 g3 h5 g2 e5 g4 h6 d2 e6+ Ke8 e7 Kf7 d7 Kg6 e8B+ Kg5 d6 Kf4 Kd5 Ke3 b6 a4 b7 a3 h7 c4 b5 c3 b6 c2 Bf7 c1N Nc3 a2 Bd3 Ra7 Nh3 g1Q Qb3 d1B Ng5 Kd2 Nge4+ Ke1 Nb5 Nc6 b8Q Ra6 b7 Bc2 Na7 Kd1 Qa8 Bh6 b8Q Nd4 Q8b5 Qa5 d8Q Bf4 d7 Qf1 Nd6 Ne7+ Kc5 Kd2 Qg8 Nd5 d8N Nc3 Bfc4 Bd7 Rb1 a1Q Rh5 N1e2 Rc1 Q1a2 Re5 Bc6 Re7 Be8 Rf7 Rb6 Qg6 Rg8 h8Q Rg7 Qh3 Ra6 Qg2 Rb6 Ndc8 Re6 Nd6 Nb1 Kd5 Na3 Qc5 Qb5 Qh5 Qd7 Qcc8 Qb7+ Kc5 Qe4 Kb6 Qd5 Qg3 Nc3 Kc7 Bd1 Kb8 Nac2 Qg1 Ne1 Qg3 Ncb5 Rc3 Bc2 Qg2+ Kc1 Ndc6 Bd7 Qg8 Be8 Nd8 Nc7 Ba6 Ncb5 Rc8 Nc3 Bac4
2Bbr1b1/2N1Qq2/1bp1rk2/q1Rn1BRn/Rq1N2B1/B6K/4npP1/1B3Q2 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 Ke7 Kg3 b5 d4 h5 e4 f5 a4 h4+ Kh3 c6 a5 f4+ e6 c3 g6 b3 g7 c2 d5 b4 e5 f3 a6 b2 a7 b3 Be2 f2 Ra4 Rh6 Qf1 Nf6 g8R Na6 Bg4 Nb4 Nf3 Nh5 Nc3 b1Q Nb5 b2 Nc7 Qa2 Rg5 b1Q Ba3 c1B Nd4 Be3 Bf5 Rb8 a8B Bg7 Rh2 Bf6 Bb7 Qg8 Ba6 Qf7 Be2 Ba6 Beg4 Bc4 Rh1 Re8 d6+ Kf8 d7 Bd8 Rg1 Rg6 e7+ Kg7 e6 Nd5 Rh1 Qb4 Rh2 Kf6 Rh1 Reg8 e8B Bb3 e7 Rh6 Nc2 Bb6 Nd4 Qad2 Bb1 Qa5 Rg1 Qdb4 Bgf5 Qf8 Beg6 Qf7 Bg4 Re8 B6f5 Rg6 Qb5 Rh6 Rc1 Rg6 Rc5 Bc4 Kh2 h3 Qa6 Ke5 Qb5 Re6 Qa6 Bb3 Qc4 Kf6 Qf1 Nhf4 Kg3 h2 Kh4 Nh5 Kh3 Rg8 e8B h1N Qb5 N1g3 Qf1 Qg7 Bf7 Ne2 B7g6 Rge8 Bf7 Be7 d8Q Bc4 B7g6 Qf7 Qd6 Bd8 Qf8 Re5 Bc8 R5e6 Bgc2 Bd3 Qd6 Bh7 Bcf5 Bg8 Qe7+
5Q2/3Q1NBr/b1pr2p1/1QbBK1QQ/3n1n2/Nq1B3n/PqRq1R2/r5k1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 b5 d6 f5+ Ke5 f3 e4 f2 d7 g6 h6 f4 h5 b3 h7 b2 h6 f3 Qa4 b4 Rh2 b3 Na3 b1Q Bb2 Ba6 Nh3 Nf6 Ng5 Nd5 Nf7 Nf4 Bd3 f1N Rf2 Ng3 Bc3 Qd1 Rc1 b2 Rc2 b1Q Qb3 Nge2 Qb7 Rg8 h8Q Ra7 h7 Ng1 Qg7 Qb6 h8Q Qb2 Qh5 Ngh3 Qb3 Be7 Qf8 Rg7 Qb7 Rh7 Qb3 Rb7 Qa4 Rb6 Qb3 Qc8 d8Q Qb7 Qd7 Rc6 Qa4 Q7b3 Qc4+ Kb6 Qcd5 Bc5 Qc4 Rd6 Qcb5+ Ka7 Bf1 Qe2 d4 Qd3 d5 Qd2 Qa4 Kb7 Bd3 Kb6 Qab5+ Ka7 Rg2 f2 Rh2 f1R Rf2 Ra1 Bd4 Rc6 d6 Rb6 Qde8 Rc6 d7 Rb6 d8Q Rd6 Qbd7 Kb6 Qdg5 Ne6 Kf6 Nc6 e5 Nef4+ e6 Rc1 Be5 Ra1 Bc3 Nd4 Ke5 c6 e7 Bb4 Qb8+ Kc5 Nb5 Ba3 e8B Bb4 Be4 Kc4 Bd5+ Kd3 Na3 Ke3 Qb5 Bc5 Bc4 Qb1 Bd3 Q3b2 Nh8 Qb3 Bf7 Qbc1 Bd5 Qcb2 Rf1 Bb6 Nf7 Bc5 Rh1 Kf2 Rh2+ Ke1 Re2+ Kf1 Rf2+ Ke1 Ke4 Nf3 Bg7 Nd4 Re2+ Kf1 Ke5 Rf6 Qgh4 Rd6 Rf2+ Kg1 Q4g5+
Bqr1Rq2/n1bKB1N1/RP1n4/Q2q3b/7N/Q1Nrp2N/p5r1/kb1B2N1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 e3 g4 h3 b6 h4 g5 e2 g6 e1Q b5 a4 g7 h2 b7 h3 f5 a3 b6 Nh6 g8B Nf7 f6 Qg3 Nc3 Bg4 Qe1 Bh5 Be2 c5+ Kc4 Ke5 Kb5 Kd4 d6 e5 d7 e4 Bd1 Nc6 b8Q c4 Qa7 Qc8 d8N e3 Ne6+ Kd3 Qa4 Bd6 Ng5 Qf8 Bh7+ Kd4 Be4 Rc8 d3 Bc7 Qa6 Nfe5 f7 Rg8 Qa5 Qf4 Qf2 Rd8 Qa2 Rd7 Bg2 Qb8 f8N Nf7 Ng6 Na7+ Ka6 Qd6 Ba8 Qdf8 Nh4 Nd6 Qb3 Rgg7 Ra2 Rgf7 Bd2 Rf2 Be1 Rg2 Bg3 Ne4 Bd6 Rd8 Be7 Nd6 Nd5 c3 Ra1 c2 Nc3 c1R Qa2 Nac8 Qb2 Nf7 Kb5 Nfd6+ Kc6 Rcc2 Ra2 Rcd2 Qc1 Re8 Kd7 Na7 Qb5 Rc8 Qa6 Kc5 d4+ Kb4 d5 Rd3 Qa5+ Kc4 Rf2 Kd4 Rf5 a2 Qca3 Qg7 Rf8 Qg8 Re8 Qf8 N1f3+ Kc4 Rf1 h1B Ng1 h2 Rf7 Rc2 Rf4+ Be4 N5h3 h1Q Rg4 Rg2 Rg5 Nf7 d6 Beg6 Ke6 Be4 d7 Nd6 d8N Bh7 Kd7 Be4 Be2 Bf5+ Ne6 Be4 Qc1 Kb3 Ng7 Bh7 Qca3+ Kc2 Q3c5 Kb2 Qca3+ Ka1 Rg4 B7g6 Ra4 Bh7 Ngf3 Qd1 Nfg1 Qb3 Bd1 Qd5 Bc6 Rd4 Ba8 Bb1 Qb5 Rdd2 Ra6 Rd3 Qba5
2rkr3/2R5/rP3n1Q/1qBQ1pK1/3bb2p/QB2RN1Q/B2q1Nb1/3Q1n1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 g4 h5 e4 f5 b4 c4 d4 h3 d6 a4 b6 h2 d7+ Ke7 e5 c3 e6 h4 b5 a3 d5 a2 d6+ Kf6 g5+ Kg7 g6 Kf6 e7 c2 e8Q Rh6 g7 Ra7 b7 Ne7 g8B Na6 b8Q Nc5 b6 Nd3 Bb3 Nf2 Nc3 Ra6 Qh5 Bg7 Qa7 Rh8 Ba3 c1R Bc5 Re8 Bfc4 Nd5 Qh6+ Kf7 Rb1 a1Q Ne4 Qe5 Qf1 Qg5 d8Q+ Bb7 d7 Qb2 Qh3 Bd4 Ba2 Qb5 Bcb3 Rc4 Qda8 Nf6 d8Q Ke6 Re1 Bd5 Be7 Rc8 Re3 Kf7 Q7b7 Ke6 Qd6+ Kf7 Qa3 Ke6 Qbb8 Kd7 Bc5 Kd8 Qba7 Bc6 Qf7 Bb7 Qc4 Bd5 Qcf1 Bc6 Qd1 Bd5 Ne2 Bb7 Re1 Nh1 Ng1 Bd5 Rc3 Bc6 Rc4 Bb7 Re3 Bd5 Ke2 f3+ Kd3 f2 Nf3 f1N Nf2 Qf4 Ke2 Be4 Qd5+ Qd6 Ne5 Bd3+ Kf3 Be4+ Kf4 Qdd7 Kg5 Bg2 Bf8 Be4 Nf3 Qd6 Qa8 Qdb4 Bc5 Qd2 Rc3 Nhg3 Bb4 h1B Rc7 Bg2 Bc5 Nh1 Qd5+
1k2qq1n/1bNr1R2/1p2r2Q/R2q1R2/R1bNP3/1p2b2K/rB6/n1BB2QR b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 c5 a4 Kc7 d4 g5 h4 f5 e4 c4 h6 c3 h5 c2 a5 b6 a6 b3 a7 f3+ Kh3 g4+ Kh2 f2 h7 g3+ Kg2 f4 h6 Qe8 Ra4 Na6 Be2 Bb7 Nc3 f3+ Kh3 g2 d6+ Kc8 d5 f1B Ra5 f2 Nf3 Nb4 Nd4 Ne7 Ncb5 Ng6 Nc7 Bg7 Bf3 Bc4 Qg1 f1Q Bd1 Qff8 Ra4 Rg8 h8B Bf6 h7 Rg7 Ra5 Rd7 Bg7 Bg5 h8Q Be3 Qh6 Nh8 Bf6 Re7 Ra4 Re6 Bg7 Bba6 d7+ Kb7 d6 Rd8 Qf1 g1Q a8R Qg5 Qg1 Qd5 Ra7+ Kb8 Be5 Rc8 d8R Bb7 Rd7 Rd8 Rf7 Rd7 Bg7 Be2 R7a5 Bc4 Bd2 c1R Rf5 Rb1 Bc1 Rb2 Rf7 Rde7 d7 Nc2 Rf5 Ra2 d8R+ Bc8 Rd7 Bb7 Bf6 Na1 Be5 Rh7 Rdf7 Rg7 Nc2 Rh7 Beb2 Rg7 Nd4 Rh7 R7f6 Rd7 Rf7
1K5B/2N1N1np/p1r1NN2/r2Q1nqn/1k3Pb1/N2R1BbR/1B2q1Qq/b7 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a6 g4 c6 b4 e6 f4 e3 g5 h3 b6 h2 g6 e2 g7 e1B b5 Qg5 b7 Qg3 b6 Qf3 Ne2 Qh5 Qc2 Bg3 Ra3 Nh6 g8N Nd7 b8N Nf6 b7 Ne8 Nec3 Qg5 Be2 Bg7+ Nf6 Rf8 Bb2 c5+ Kc4 e5 d4 e4 Bf3 e3 Nc6 e2 Ne7 e1Q Qg2 Ra7 b8B+ Rc7 Rb3 Bg4 Na3 Qee5 Rd1 h1Q Rd3 Rf7 Ba7 Qhh4 Bb6 Rc6 Ba7 Kc7 Ncb5+ Kb7 d6 Qh2 d7 Qe2 d8Q Nf5 Kd5 c4 Bb8 c3 Be5 c2 Nc7+ Ka7 Qd6 c1N Ke6 Bh8 Kd7 Neg7 d5 Rf8 Rbc3 Kb6 Qe6 Ka5 d6 Rc8 Qd5+ Kb4 Bd4 Rb8 Be5 Rbb6 Kc8 Rb5 d7 Ra5 d8N Na2 Rc5 Nc3 Ne6 Ne4 Kb7 Ra4 Kb8 Ra5 Nfg8 Nf6 Rcc3 Nfh5 Nf6 Qe4 Rc1 Qe2 Rh1 Qg1 Rh3 Qh2 Bec3+ Ka4 Ba1 Ne8 Ne4 Bg7 Bd4 Kb4 Be5 Bh6 Bh8 Bg7 Bd4 Be5 Nf6 Neg7 Bf2 Bc3 Bd4 Ba1 Bb2
NB3Qkr/3N2p1/5q1B/rq4PR/2bRQRnn/2KRp2q/bR2B1r1/6n1 b - - 0 1 illegal: No proof kernel
qr1NNN2/nR3PQ1/5rq1/K2p1B1R/3bR2Q/1b2nR1r/2qp3B/b1kR4 b - - 0 1 illegal: No possible last move, all moves rejected
5Q2/4nPb1/2BnR1pk/Kb1NNQ2/1QQ1qBQ1/1br1np2/5rq1/N2R1r2 b - - 0 1 illegal: No proof kernel
1k1BN1q1/B2RBp1b/5nb1/KnbQ2BP/Nr6/q1p2B1r/1n5N/2R2Q1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 c5 Kc3 Kc7 e4 a5 h4 g5 b4 g3 d6+ Kb7 e5 f3 d5 g2 d7 g4 b6 a4 e6 f2 e7 a3 e8N a2 h5 c4 d6 g3 b5 Nf6 Kb4 Na6+ Ka5 Kb8 Nf3 g1Q Bg2 f1B Bg5 Bd3 Qf1 Bg6 Nc3 Bb7 Rh3 Bbe4 Rc1 a1Q+ Na4 Qa3 Nh2 Qh1 Bf3 g2 Rg3 Qc8 d8B g1N b7 Ne2 d7 Bc5 Be7 Nf4 d8B Nd3 Rg4 Bef5 Rd4 Nb2 Rdd1 c3 Rd7 Rg8 Rd5 Ka7 b8B+ Kb7 b6 Nc7+ Ba7 Rb8 Rd6+ Be4 Rd7 Bh7 Be3 Rg3 Bd2 Rh3 Bg5 Kc6 b7 Nb5 Bab6 Bg6 Rd5 Qg4 Rd7 Bh7 Be3 Qg7 Bg5 Qg8 Bd1 Beg6 Be2 Rc8 b8Q Rc7 Bd1 Rb7 Qe5 Rb8 Nc7 Kb7 Ne8+ Kc8 Qd5 Rb7 Bf3 Kb8 Bg4 Rc7 Bf3 Rc6 Qa2 Re6 Qb3 Re4 Qd5 Rb4 Ba7+
RQ1qBq1N/2Bp2QR/pR3nRn/3kr1bb/R2r1N2/8/3B3P/1r2b1nK b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b4 Kf7 c4 g5 f4 e5 Kf2 a6 Kg2 d3 b6 d2 f6 Ke6 f7 g3 c5 g4 b7 e4 b5 e3 b6 e2 c6 e1R c7 Qh4 f5+ Kd6 f6 Rh7 Ne2 Bh6 f8Q+ Ke5 f7 Kd5 Na3 Ra7 Nc4 Nf6 Qb3 d1Q Ra4 Nc6 b8B Nd4 b7 Nf5 Qg7 Bg5 f8R Nh6 Rg1 Qd3 Qb6 Qa3 Rf7 Qf8 Kh1 Rd1 Re7 Rd4 Nd6 Rh8 Bd2 Ra8 Ba7 Rb8 Nf7 Rh7 Qg6 Rg7 Nh8 Rg8 Rh7 Rg7 Qd3 Re7 Qg6 Re5 Bh3 Ra8 b8R Bb7 c8R Bc6 Rb7 Rb8 Qg7 Bb5 Nc1 Be2 Nd3 Bd1 Qc7 Be2 Rb6 Bd1 Re6 Rb1 Ra8 Be2 Qb8 Bd1 Re1 Be2 Bf1 Bd1 Bb6 g2+ Kg1 Bf3 Bc7 Bd1 Re3 Be2 Rg3 Bf3 Kf2 g1N Rb6 Bd1 Kg2 Be2 Rh3 g3 Kh1 Bh5 Be2 Qd8 Ne1 Qf4 Ng2 Qf3 Bd1 Qa3 Bc2 Qaf8 Nf4+ Kc5 Nhg6 Nf3+ Bc1 Bh4 Ne6+ Kd5 Bf5 Nd2 Nh8 g2+ Kg1 Bg3 Bg6 Bf4 Rg3 Nf3+ Kf2 g1B+ Kg2 Bfe3 Kh1 Bgf2 Be8 Ng1 Bd2 Be1 Rg6 Bg5 Nf4+
1q1BR2B/R1p2nr1/6Q1/KbQB1P1p/2R1b2N/6RR/4qn1q/b1Nn1kr1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 g4 Kg6 b4 e5 d4 a5 Kd2 h5 Kc3 h3 g5 Kf5 b6 a4 b5 e3 g6 Ke4 g7 h2 b7 e2 f5 e1N b6 a3 d6 a2 Kb4 Nc6+ Kb5 Nf6 g8R Bd7 b8R Nc2 b7 Ng4 d5 Bg7 Bc4 Nce3 Bb2 Rh7 Ne2 Kf3 Qc2 Kf2 Nd2 e4 Nf3 Nce5+ Kb4 Bh8 Nh4 Nf7 Re8 Bc6 d7 Bd4 Rhg1 h1B d6 Bf3 Rac1 a1Q Bd5 Qa2 Qc5 Qc8 d8Q Bh1 Re7 Bb5 Qg8 Qe8 d7 Bf3 Ba3 Ba1 Qg5 Qf8 Rc4 Qc2 Rg2+ Kf1 Nc1 Nd1 Bb2 e3 Bh8 e2 Re3 Be4 Rh3 Ra2 Qh6 Rg7 Ra8 Ra3 b8R Rg3 Qg6 e1Q+ Rc3 Qcf2 Ra7 Qee2 Rc4 Qf4 Rba8 Ngf2 Ka5 Rg5 Rd8 Qh2 Rda8 Qc8 Rb8 Qb7 Re8 Qb8 d8B Rg4 Rgg3 Rg5 Rf3 Rg1 Rfg3
r4Nn1/1PQ3Np/R2N2kq/3bnb1r/8/1B4r1/1bNBpKN1/q1RBn1Q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 c5 b4 e5 f4 a5 f5 h3 g5 e3 f6 c4 d6 a4 g6+ Ke8 d5 c3 f7+ Kd7 g7 c2 b6 e2 b5 h2 b7 e4 b6 a3 Kf2 e1R Bd2 c1Q Ne2 a2 Na3 Qe8 Nf4 Qe5 Nc2 Nc6 b8Q Qe6 b7 Ne5 Bc4 Qh6 Ng2 Ra3 Rf1 h1B Be2 Rg3 Rg1 Be7 f8N+ Ke8 d7+ Kf7 d6 Bf6 Qc7 Qb2 Rc1 a1N Bf3 Re3 Qf1 Rg5 Bd1 Rh5 Qe1 Rg3 d8N+ Ke8 Nf7 Bf5 d7+ Ke7 Nce3 Nc2 Nd6 Qa1 Qf1 Ne1 d8N+ Nd7 Nc2 Bb2 Nde6 Kf6 Ned4 Ne5 Nde6 Qa2 Ra1 Qb1 Ra6 Qa1 Ngf4 Bf3 Rh1 Bg2 Qg1 Bf3 Ng2 e3+ Kf1 e2+ Kf2 Ne7 g8B Bd5 Bf7 Ng8 Ng7 Bc6 Bb3 Bd5 Nfe6 Kg6 Rh4 Ne7 Rc4 Ra8 Rcc6 Ng8 Nf8+ Kf6 Nce3 Kg5 Rc5 Kf6 Rc1 Kg5 Nc2+ Kf6 Nfe6 Kg6 Nf8+
1Q6/bpR1N1QB/1kqR3r/nrBb1K2/1N4QP/2q1Q2p/3BQ1rn/4q2b b - - 0 1 illegal: No possible last move, all moves rejected
2Q1n1K1/p5R1/Nq1r1Q2/4kqrP/Qp1NbnB1/R5B1/1Q2R3/b1b2Qnr b - - 0 1 illegal: No proof kernel
1q3b2/pn2Nb1q/Kb2BnRP/2R1R3/p1B3rQ/B1nkB2N/3B4/q2Qr3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 bxa4 c4 d5 cxd5 exf4 b4 Ke7 h4 Kf6 d4 Kf5 Kd2 Ke4 Kc3 g5 Kc4 f5 Kb5 c5 d6 c4 h6 c3 d5 c2 d7 g4 h7 f3 h5 f4 d6 f2 h6 g3 Nc3+ Ke5 e4 g2 Ba3 c1Q Nh3 g1B Bc4 f1Q Nd5 f3 Ne7 Qb2 Rc1 Bf2 Rg1 Nf6 Rg6 Rg8 h8R Qc7 d8B Nh7 d7 Nc6 Rc3 Qb7+ Bb6 Na5 d8Q Nf6 Rc2 Qc7 Be3 Be6 Ka6 Bf7 b5 Nb7 b6 Bg1 Re2 f2 Re1 Qd7 Bd2 Kd4 e5 Qa1 e6 Qd6 Rh7 Qd3 Re5 f1N Rhg7 Qc2 Rgg5 Qcb1 R7g6 Ng3 Be3+ Kc3 Rc5 Qb8 Rge5 Na5 b7 Ne2 Q1d4+ Kc2 Qh4 Nc3 Qd5 Qe8 b8B Nb7 Bc7 Qb8 Ba5 Bf2 Nc8 Bg1 e7 Rg7 e8B Bf2 Rg3 Rg4 Ne7 Bg1 Bd7 Bf2 Bd4 Kd2 Be6 Qh7 Qf3 Bg1 Be3+ Kc2 Bcd5 Kd3 Qh1 Qc7 Qf3 Re8 Rg2 Qb8 Rg3 Nce4 Bad2 Nc3 Qd1 Rf4 Rg6 Rg4 Bg5 Be3 Rc4 Bb6 Rc5 Rd8 Bb3 Rdd4 Bgf4 Re4 Bg5 Re2 Bge3 Re1 Bbc4+
RbNR1Q2/p4QR1/p1R2Pb1/2n2BR1/2q1B2K/3k1q1n/NB2q3/1bn1rr2 b - - 0 1 illegal: No possible last move, all moves rejected
bRB1N2k/8/1b1bB3/3RR1r1/2K4R/R3Bn2/1qpbpnPb/2r1QQNn b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 f4 Kg7 b4 c5 d4 e5 b6 a5 f5 h5 g6 h4 d5 a4 d6 a3 b7 a2 b5 e3 d7 c3 Kd3 e2 b6 e1B Be2 e4+ Kc4 c2 Nf3 h3 Qd5 e3 Rf1 h2 Nfd2 h1N Na3 Nf6 Qe5 Rh5 Nb5 Bf2 Nf3 Rg5 Re1 Kh8 Ng1 Nc6 b8R Bd6 b7 Qb6 Bg4 Nd4 Nc7 Qb2 Ne8 Nf3 d8R Bd7 Qe6 Ne4 f6 Bc6 f7 Bfg3 Qe7 Nef2 Bc8 Bh2 Bd2 c1B g7+ Kh7 g8B+ Kh8 f8Q e2 Be3 Bd2 Bge6+ Rg8 Qf5 Rg5 Qc7 Be4 Qa5 Ra6 Ra8 Rc6 b8R Rc7 Rad1 a1B Rd7 Bb7 Re7 Rc6 Ra7 Ba8 Qb4 Rc7 Ra3 Rc6 Bed7 Rc7 Re5 Rc6 Be6 Rc7 Kb5 c4 Qf4 c3 Qf7 Rd7 Kc4 c2 Qf5 Qc1 Qa5 Bd4 Qf7 Qb2 Rf1 Bc1 Qe1 Bb6 Rdd5 Ra7 Rb3 Ra1 Ra3 Bd2 Qf4 Ne4 Rf2 Rc1 Qf5 Nd4 Rf4 Nef2 Rg4 Nd3 Qff2 Nf3 Qff1 Ndf2 Rh4+
1kn2N2/n2Qb1NN/R1rb4/2QP3b/3bp3/1N3Np1/2r2BBb/qB3RnK b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 f4 Kd7 Kf2 b5 Kg2 c5 a4 Kc7 d4 e5 h4 g5 f5 b4 h5 g3 f6 g4 a6 e3 h6 e4 h7 b3 a7 b2 f7 c4 a5 c3 a6 e2 Bg5 e1B Nf3 c2 Bh4 c1B Nbd2 b1N Nb3 Be7 f8N Bf4 Ra4 Be6 d6+ Kc8 Ra3 Bf2 d7+ Kc7 Rg1 Nc3 Kh1 Bf7 Bg2 Nc6 Rf1 Rc8 a8Q Bfd6 a7 Bh5 Ra6 Ne2 Qc2 Ng1 Qc5 Qe8 d5 Bd4 Qb7+ Kd8 a8B Na7 Qbb5 Rc6 Bb7 Kc7 d8N Kb8 Nde6 Qd8 Qa4 Qa5 Ng7 Qc3 Bc8 Qa1 Bd7 Nf6 Bc8 Nd7 Bb7 Rg8 h8N Nb6 Nh7 Rgc8 Ng6 R8c7 Ngf8 Nbc8 Qc1 Rc2 Qd7 R7c3 Bc6 Rc4 Bb5 Rc6 Bh3 Ba3 Bd3 g2+ Kh2 Bad6+ Bg3 Re2 Bb1 Rec2 Qa3 Ne2 Qa5 g1B+ Kh1 Bh2 Bf2 g3 Qc5 Ng1 Bg2
2b1nn2/5b2/B1ppkrrB/1B2PR2/1b2Q2N/4K2b/q3BNQn/Rb1B2Q1 b - - 0 1 illegal: No proof kernel
nR1N3r/2RQ2bR/1p1q1B2/4QRRp/b2bP1r1/1B1b1K2/1bn1N2r/Nk6 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 Kd7 g4 Kc6 a4 Kd5 d4 Ke4 e3 h5 d5 c5 g6 f5 g7 b3 e6 b6 a5 f4 g5 b2 a6 f3 d6 c3 e7 c4 e8Q+ Ne7 g8R c2 g6 c3 a7 Na6 d7 Nb4 Bb5 Bg7 Bd2 c1B Bc4 c2 Na3 b1B Ne2 Bcb2 Bc3 c1B Rf1 Nc2 Bf6 Bd4 Bb3 Bcb2 Kg3 Rb8 a8R f2 Ra7 Rb7 Qe1 Kd3 Kf3 Nd5 e4 Qe7 d8N Bd7 Qa5 Nc7 Qe5 Ba4 Qd7 Na8 Ra2 Rb8 Rc7 Qc5 Rf8 Qd6 Rg1 Rc8 Rg5 f1R+ Kg3 Bh6 g7 Rf2 g8R Rh2 Kf3 Bg7 Rf7 Bh6 Rh7 Bg7 Nb7 Re8 Rf5 Re6 Rb8 Kd2 Nd8 Kd1 Be7 Rg6 Bf6 Rg4 Rg5 Kd2 Rf5 Na1 Rg5 Bd3 Nc2 Kd1 Ng3 Kc1 Ne2+ Kb1 Rf5 Bc6 Ra5 Ba4 Ne1 Nc2 Rg5 Na3 Nc2 Qe7 Na1 Qd6 Qee8 Nc2 Raf5 Qe6 Qee7 Qd6 Qe5
R5N1/b3n3/p1B2n2/k2Qq1B1/1nbRPB1K/2pbr1N1/Nn1r1n1Q/4BB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 f5 g4 h5 d4 c5 e4 Kc7 d6+ Kb6 d5 h3 g5 a6 g6 h2 g7 f3 Kg3 h4+ Kh3 c4 d7 f2 d6 f4 Qc2 f3 Nc3 Ne7 g8B Qe8 Nge2 Nbc6 Na2 c3 Bf4 Rh7 Kg4 h3 Ng3 Rf7 Rg1 h1N Kh4 h2 Rd1 Ra7 d8N Be6 d7 Bc4 Qd3 Bh6 Bd2 Be3 Qd5 Bd4 Be1 Bc5 Nf5 Ng3 Rd4 Nh5 Ng3 h1N Rg2 Rf8 Nf7 Nf6 Nh6 Qb8 Bf7 Qe5 Ng8 Raa8 Be8 Rd8 Bd3 f1N Be2 Nh2 Bf1 Nhg4 Rgd2 f2 Rd1 Kb7 b6 Ne3 b5 Bd3 Rb1 Nc4 Rb3 Nb2 Rbb4 Kb8 b7 Ka7 b8B+ Kb6 Rbc4 Ka5 b6 Nb4 b7 Rf7 Bd6 Rg7 b8Q Rg6 Qe6 Ba7 Rc8 Rg5 Qc4 Rf5 Qb3 Rf3 Qd5+ Ka4 Qc7 Re3 Ra8 Bc4 Bg2 f1B Qb8 Bfd3 Bf1 Qe6 Bf4 Nf2 Qbe5 Rb8 Qh5 Qe5 Qh8 Rb5 Qh5 Ka5 d8B+ Bb6 Bc6 Rc5 Qe6 Rd5 Qh3 Rd7 Qh2 Rd6 Bg5 Rd5 Bc7 Rd6 Bb8 Ba7 Qf7 Rd8 Qd5+ Kb6 Qf7 Bb1 Nh1 Qe6 Rd3 Ka5 Bbf4 Qe5 Ng3 Bc2 Rd2 Rd5 Re2 Rd1 Rd2 Bb1 Rd4 Rd2 Qe6 Bbd3 Qd5+
5R2/R1nkpr1B/2n1n1R1/nr1b1B1q/2nNR3/1pK1bP1N/5B2/3Q1RbQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 h5 Kd2 c5 a4 b5 g4 b3 g5 c4 f3 b4 a5 b2 a6 b3 f6 c3+ Kd3 h3 g6 h4 d6 c2 d5 h2 a7 h3 g7 Rh5 f7+ Kd7 Bh6 c1B Bg2 Qa5 Qc2 Nf6 g8Q Ne8 Qg3 Nc7 Nc3 b1N Nb5 Nd2 Be3 Nc6 Qe1 Bh6 f8R Bb7 Nd4 Nc4 Bf2 Bce3 Qcd1 Rf5 Rg8 Rb8 a8B Rf7 Rg6 Qc5 Ra7 N6a5 Kc3 Bc6 Nge2 Rb5 Rf1 h1N Nf4 h2 Nh3 Ng3 Bb7 h1N Ba6 Kd8 d7 Nh5 Bb7 Nf4 Ba6 Na8 Bb7 Kc7 d8R Ne6 Rf8 Kd7 d6 Nac7 Ba6 Ba8 Bb7 Ng3 Be4 Qh5 Bb1 Rg7 Rf4 Nf5 Re4 Rf7 Bd3 Kd8 d7 Bd5 Bc2 Nfd6 Bb1 Nc6 Bd3 Nb7 Bc2 Ne8 Bd3 Kc7 d8R Bhf4 Rda8 Kd7 Bc2 N8c7 Rf8 Bg5 Rg1 Bgf4 Rg3 Be5 Rh4 N6a5 Bf1 Nc6 Bh7 Ra5 Rg6 B5f4 Bd3 Bh2 Bf5 Rb5 Re4 Nba5 Qf1 Rb6 Qg2 Rb5 Rf1 Bg1 Qh1
5r2/1N1p4/2nb4/BPbbbkQ1/1N1nnr1R/B1Q2q1B/bp1R1BQ1/B4K2 b - - 0 1 illegal: No possible last move
Nb2b1n1/2PRN2p/1BQ5/2q3rN/1rpB1bk1/n2Q2n1/K1bR3b/2NBN3 b - - 0 1 illegal: No proof kernel
1N1n3N/1rpq4/1nPbkr2/K2b4/Q5Rp/1Rr2nn1/B1Q1n3/BN2RNN1 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 Ke7 Kc3 d5 Kb4 h5 g4 e3 c4 a6 f4 e2 c5 e1N f5 h3 g5 d4 b6 d3 e6 h4 g6 d2 f6+ Ke8 b7 h2 f7+ Ke7 g7 Qe8 Bc4 Rh6 Ra4 Nf3 Ba2 Nf6 Ka5 Qd7 b4 Nd5 b5 Ra7 b6 Rf6 Qc2 d1N Bb2 N1c3 Ba1 Ne2 Rg4 Nc6+ Ka4 a5 b8R Rh6 b7 Rf6 g8Q Nd8+ c6 Kd6 e7 Ke6 e8N Bd6 Kb5 a4 f8N+ Ke7 Qgg6 a3 Qa4 Nb6 Qgc2 Rf4 Ng7 Rf6 Bb3 a2 Nh5 Be5 Ra8 Bd6 b8N Ba6+ Ka5 Rb7 Bd5 Bc4 Ng3 Bb3 Bf7 Bc4 Nf1 Bd5 Bd4 a1R Be6 Ra3 Ng6+ Ke8 Ba1 Rc3 Nh8 Ke7 Ra6 Be4 Ba2 Bd5 Nh3 Ke6 Rhg1 Nc8 Rb6 h1N Rb3 Nhg3 Rh1 Nb6 Ng1 Rf4 Rh2 Rf6 Rf2 Nc1 Rd2 Nce2 Rd1 Rf4 Rc1 Rf6 Re1
n2b3r/1p1b1B1n/2BnQBn1/7B/2NPNpq1/R2Qnk1r/r3B2R/1R5K b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 e4 Kd6 a4 Ke5 g4 h5 Kg2 c5 g6 f5 g5 c4 a5 b3 g7 b2 a6 h4 g6 Be7 d6 Nf6 g8B Qd7 a7 Nh7 g7 Na6 Qe1 Nc7 Nc3 b1N Bb2 Na3 Bd3 Nab5 Rb1 h3+ Kh2 f3 Bd5 Kf4 g8B f2 e5 f1R e6 Rf3 Bf7 Kg4 B5e4 f4 Bf1 Bh4 e7 Rg3 Na2 c3 Bc6 c2 Nc3 c1N Nf3 Nd3 Qe5 Qf5 Qe6 Ne5 d7 Ng6 d8Q Bf6 Qdd5 Bd7 Ne4 Nd6 d3 Bg5 Nfd2 Re3 Kg1 h2+ Kg2 Rf3 Nc4 Rh3 Bg7 Bf6 Qd4 Bh4 Qe3 Bg5 d4 Bf6 Qd3 Bh4 Rg1 h1N Be5 Ng3 Rh1 Bg5 Rh2 Bf6 Qd5 Qh5 Qe6+ Ngf5 Kh1 Bh4 Qd2 Kf3 Qd3+ Ne3 Bg7 Rad8 a8R Qg4 Ra5 Ra8 Ra2 Ra6 Ra4 Rb6 Ra3 Na8 Be5 Rb2 Bg7 Be1 Be5 Ba5 Bf6 Nh4 Bh5 Ra2 e8B Bd8 Bef7 Ng6 Be2+
1Nr2r2/p6k/nQ1KR2q/2Qn1b2/r4r1b/p2B1NB1/2QPR2r/2Q1nRQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kf7 Kd3 Kg7 Kd4 c5+ Ke5 h5 f4 e6 b4 c4 g4 a3 b5 c3 d6 c2 b6 h3 g5 h4 g6 h2 b7 h3 d7 Nf6 Nc3 Qe7 d8R Ne4 f6+ Kg8 f7+ Kg7 f5 Qc7+ Rd6 Qc4 f6+ Kh6 g7 Na6 b8Q Be7 f8Q Kh7 f7 Bh4 Qb6 Nf6 Na2 Nd5 Nb4 Qc6 Bb2 c1R Nf3 Rc4 Qc1 Rf4 Bd4 Bd7 Bf2 Rc8 Bg3 Rg8 Rg1 h1R Rg2 h2 Re2 Rg1 Qe7 h1R f8Q Rh2 Qfd8 Rgf8 Qdc7 Qa4 Q7c5 Qc6 Qf6 Rgg2 Qc7 Qb6 Nc6 Ra4 Nb8 Rf2 Qfd8 Rff4 Rc6 Rf8 Kd6 e5 Q5c2+ e4 Qe7 Qe3 Qb6 Bf5 Qe5 Qf4 Rb1 e3 g8Q+ Kh6 Qg4 Qg5 Qec3 Kh7 Qcc5 Qh5 Bf4 Qg5 Qg1 Qg7 Bg3 Qg5 Ne1 Rff4 Nf3 Qg7 Rg2 Qg5 Bd3 e2 Rf2 e1N Re2 Ne7 Ke5 Nd5 Re6 Qh5 Kd6 Qh6 Q1b2 Ng2 Rf1 Ne1 Qbc1
8/Q1bN3N/NQ2NKbn/rn3n2/1rP1RB1p/r4Bpk/b1N5/Qq4Rn b - - 0 1 illegal: No proof kernel
1k1rnB1R/RBb4N/q1BnQ1bQ/5r1P/N1n1R1r1/b1B5/K2p2p1/1nB5 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 f4 e5 h4 g5 c4 d5 Kc2 Kd7 Kb3 Kc7 h5 g3 f6 g2 c5 a4+ Ka2 a3 b4 e4 c6 g4 f7 e3 f5 d3 f6 d2 Qe1 d1N Nh3 g1R Qf2 e2 Bd2 e1B Ng5 g3 Bc3 d4 Qf4+ Qd6 Rh2 d3 Re2 d2 Bg2 Ne7 Re4 Ra5 Nh7 Nb2 Qh6 Na6 b6+ Kb8 b5 Nf5 b7 Nc7 Bh1 Be7 f8B Nc4 f7 Ne8 Bfg7 Qe6 f8B Nfd6 Bb2 Qf6 Nc3 Bf5 Na4 Bg6 Bc1 Bf2 Bg2 Bb6 Bh1 Qf1 Bc3 Bc7 Bf3 Rh1 Bg2 Rh4 Bh1 Rg4 Bf3 Ka7 b8R g2 Rd8 Qf2 Rc8 Qb6 Rd8 Qa6 Rc8 Bcd8 c7 Kb7 b6 Rf5 Kb3 a2 Ra8 Kc6 c8B Bc7 b7 Rg8 b8Q Rh8 Rb1 a1N+ Ka2 Nc2 Qb3 N2a3 Ra1 Nb1 Bb7+ Kd7 Ra7 Kd8 Bc6 Kc8 Bb7+ Kb8 Qb6 Nc8 Qe6 Ba3 Re5 Rg8 Bfc6 Rg7 Re4 Rd7 Kb3 Rd6 Ra2 Rd8 Rb2 Re5 Ka2 Ra5 Rb5 Nc8d6 Rf5 Re5 Rf7 Ra5 Rg7 Rd5 Rg8 Rf5 Rh8
Bb5b/B3NN2/1N1r2QR/1npr2Nn/K1n2Pb1/1p1N1R2/1Q6/B1bk2rq b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 a4 Kf7 d4 Kf6 Kd2 Kg5 h4+ Kf4 a5 b5 a6 c5 f6 e5 d6 g5 d7 e4 Kc2+ e3 Kb3 g3 d5 g2 h5 g4 a7 g3 f7 Bd6 f8N Na6 h6 Nc7 h7 Qh4 d8N Nf6 Nc3 Bg4 Ra3 Nh5 Nf7 Rd8 Nf3 g1B a8N g2 Bb2 e2 Ne4 e1B Ba1 Bd2 Nb6 Bc1 N3g5 Bh2 f3 Ke3 Qc2 g1R Nf2 Bde5 Qg6 Kd2 Bg2 Rd6 Nd3 Bhg3 Rh3 Kd1 Ra6 Rg8 h8Q Bgf4 Rg3 Qh1 Rh3 Beb2 Qd4 Be5 f4 Bh8 Qf2 Bbe5 Rf3 Rg7 Qb2 Rg8 Nfe6 Rgd8 Ng7 R8d7 Nf5 Rd8 Ka2 b3+ Ka3 b4+ Ka4 Nb5 Ne7 R8d7 Qc3 b2 Qd4 b1N Qb2 Rc6 d6 Rd8 d7 b3 Qd6 Nd2 Qg6 Ra8 d8B Nc4 Bc7 Rd8 Bb8 Rd5 Ba7 Rcd6 Rf2 Rd4 Ba8 R4d5 Rf3 Rd8 Nbc8 Bb8 Rf6 R8d6 Nb6 Re1 Qe4 Rf1 Rh6 Rg1 Qg6
1b2r3/B1bqQR1K/1QNNPR2/3B1nb1/4b3/pB4n1/1BpQB1kn/1r4r1 b - - 0 1 legal: proof: f4 b5 h4 d5 c4 dxc4 a4 g5 hxg5 e5 fxe5 bxa4 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 g4 c5 d4 a5 b4 h5 e3 f5 b5 c3 b6 a3 e6 h4 b7 a4 e7 a2 e8Q a3 g6 h3 g7 h2 g5 c2 g6 c4 Qd2 c3 Nf3 Bd6+ Ne5 Nh6 Be2 Ng4 Bb2 c1B Qe7 c2 Kg5 Ke4 g8B f4 d5 f3 g7 f2 Kg6 Bc7 d6 f1R d7 Rg1 Bb3 Re8 g8B Nc6 b8B Bb7 Ba7 Nd4 Kh7 Rb8 Bgf7 Qc8 d8Q Nf5 Bg8 Qd7 Nc6+ Be5 Bge6 Bf4 Qb6 Bc7 B2c4 Kf3 e4 Ba8 Be2+ Kg2 Nc3 Bb7 Rb1 a1B e5 Ba8 Nb5 Rb7 Qdd4 Bg5 Rf1 Rbb8 Nd6 Bb7 Na5 Be4 Bed5 Rb7 e6 Bb8 Bc1 Bc3 Qd2 Be5 Bb2 Bg3 Nc8 Bgc7 Rf4 Rb1 Rc1 h1N Nd6 Nh2 Rcf1 Nhg3 Nc6 Rd1 Rh4 Re1 Rh6 Ra1 Rf4 Rg1 Rf6 Ng4 Rf7 Rf8 Qa6 Rc8 Bg7 Nh2 Bbc4 Rbb1 Qb6 Re8 Bb2 Ng7+ R4f5 Bf3 R5f6 N7f5 Ba2 Be4 Bab3
B1Q1n2b/n2bK3/3p2B1/rp1N3N/1q2R2r/kbR4P/1rRBbn2/3B1BQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kg3 g5 Kg4 b5 Kf5 d6+ e6 g4 c4 g3 a4 b3 e4 g2 h3 f6 c5 b2 c6 d3 h6 d2 e5 Bd7 h7 Qe8 a5 Bg7 c7 Nc6 c8B Na7 Ne2 g1R a6 Rg2 Nbc3 b1N Qe1 d1B Bd2 Bb3 Ng3 Qf8 Kg6 f5 Ra2 f4 Rc2 f3 Nd5+ Ke8 e7 f2 Rh2 Qf4 Rc3 Qb4 Kg5 Kf7 e8B+ Ke6 Bg6 Nf6 Qe3 Ne8 Qb6 Rf8 h8Q Rf4 Qf8 Bh8 Bb7 Nf6 Qc8 Ne8 Qbc5 Rh4 Qd4 Rg1 Rg2 Rh1 Nh5 Rh2 Qb6 Na3 Qd4 Nc2 Qe3 Ne1 Qg3 Nc6 a7 Nd3 Qe3 Rb8 a8B Na7 Bc6 Rb6 Bcb7 Ra6 Qg3 Rh1 Qh2 Ra5 Qg1 Rh2 Ne3 Ba4 Bf3 Bc2 Bd1 Bb3 Bfe2 f1B Nd5 Nf2 Bed3 Nh1 Re2 Nf2 Re4 Bg2 Bf1 Bf3 Rc2 Be2 Re3 Ra2 Rec3 Rb2 Kh6 Rg2 Kh7 Rgg4 Kg8 Rc4 Kf8 Rc6 Be4 Ra6 Bg6 Ra5 Bf7+ Kf5 e6 Ke5 e7 Kd4 Bg6 Qc4 Qd8 Kc5 Qc8+ Nc6 Ne3 Kb4 Nd5+ Ka3 Kf7 Qb4 Kf8 Nc7 e8R Na7 Re4 Ne8 Ke7
Rk3rbN/bN1K1BRr/1rp5/8/P1nb2Bp/B1Qqn2n/1B6/QQb1B3 b - - 0 1 illegal: No possible last move
4N3/3RQBbB/1p1R1Q2/B1nrn1BN/q4P2/k1Knr2p/1Bn1b3/2rb3R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 h6 d4 Kd7 Qe2 Ra5 Kd2 e6 a4 b3 g4 e5 f6 b6 f7 c5 d6 e4 g5 Kc6 d7 b2 g6 Ba6 g7 Nf6 g8B Ng4 Nc3 b1R Nd5 c4 Nc7 h3 d5+ Kc5 d6 Kb4 Bb2 h2 Ne8 Bg7 f8B h5 Bf7 h4 Bf6 Rb5 a5 c3+ Kc2 Qc8 d8B e3 d7+ Qc5 Kd3 c2 Ra3 Qe7 Ba1 c1N+ Kc2 Rh6 Rd3 h3 Rd1 Qd6 Bg5 Ka3 d8R Qb4 R8d7 Re6 Bg2 Ree5 Be4 Re7 Qe1 e2 Bh7 Qa4+ Kd2 Re5 Kc3 Bd3 Rd2 Bc2 R2d5 Nd3 Rd4 Rc1 R4d5 Ka2 Rd4+ R7e6 Bb4 Na6 R4d6 Bd1+ Kd4 Nf6 Qc3 e1N Ne2 Rf5 Ng3 Nac5 Nh5 Nc2+ Kc4 Ng4 Qf6 Rd5 a6 Nb2+ Kc3 Re2 a7 Nbd3 Rc7 Re3 Ba5 Ka3 Rb7 Rd4 a8Q Be2 Qc8 Rd5 Qe6 Nge5 Rbd7 Bd1 Rg1 h1B Qee7 Bhf3 Rh1 Bfe2 Bb2+
1R1N3Q/K1Q2NQ1/p4Bb1/8/1p1Q1nBr/QPr2rbq/bk6/3RnbRn b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 Ke5 Kb5 Kd4 f4 e5 g4 h5 d6 e4 d7 e3 f6 e2 g5 e1N f7 h3 f5 h2 g6 h4 f6 h3 g7 c4 Be2 c3 Bg4 c2 Na3 Nh6 g8R Nb4 Nc4 Nf5 Na5 Bd6 f8Q Nbd3 f7 Qh4 d8Q a6+ Kb6 Be6 Qc7 Bg3 Qa3 Ba2 f8Q Nf4 b3 Rd8 Qh6 Rf8 Ka7 b5 Nb7 b4 Bb2+ Kd3 Be5 c1R Qhg7 Rc3 Nf3 Rh6 Rg1 h1B Nd8 h2 Ng5 Qh3 Rb1 Rh4 Bf6 Bg2 Ngf7 h1B Rh8 Bf1 Rg8 Ke4 d4 Kd5 Qd2 Be4 Rd1 Bc2 Qf2 Ke4 d5 Bcb1 Rc1 Kd3 d6 Bc2 Ra1 Bcb1 Qd4+ Kc2 Qaa5 Kb2 d7 Ne7 Rh8 Bg6 Rd1 Nf5 Rg8 Nd6 Rh8 Ne4 Qa4 Nf2 Qa3+ Kc2 Nc6 Nh1 d8Q Re8 Qa8 Ree3 Rb8 Red3 Ncd8 Rf3 Qae4+ Rd3 Qe8 Rf3 Qaa4 Kb2 Qeh8 Bgd3 Qaa5 Bg6 Qa3+
r3b1n1/1bBQ1nP1/4Rp2/1R1Q2RB/R4nNp/k2q4/n1rbB1R1/1KN1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 a5 g4 c5 b4 h5 e4 f3 b6 a4 e5+ Ke7 b7 h3 g5 a3 d6+ Ke6 d7 Kd5 g6 f2 b5 h4 b6 f6 e6 h2 e7 a2 e8B c4 g7 c3 Bh5 Nc6 b8R Nge7 b7 Ng6 Ne2 Kc4 d5 Kb4 d6 Nge7 Qd5 Ne5 Rg1 h1B Rg2 Nf7 Na3 Ng8 Bf4 Be7 Re1 a1R Nc1 Bf8 Bb5 f1N Bbe2 Ng3 Nc4 R1a2+ Kb1 Rc2 Ne5 Ka3 Ng4 Be7 Bf1 Ne2 Bh2 Nf4 Re6 Bf8 Be2 Be7 Rg3 Be4 Rg2 Bg6 Bg3 Qe8 d8Q Qd7 Qe8 Bd8 Qe7 Ba5 Qd8 Bb4 Bh2 Qb5 d7 Qd3 Qe7 Nfh6 d8R Be8 Rdd6 Nf7 Qd7 Ba5 Rc6 Bb4 Rc5 Ba5 Bg6 Rh5 Bg3 Re5 Bh5 Bb4 Bf1 Re1 Be2 Ra7 Ra8 Ba5 b8R Bb7 Rd8 Ra6 Rab8 Ra8 Rdc8 Bb4 Rc4 Ba5 R8c5 Bc8 Ka1 Ng6 Q5b7 Rd2 Rg5 c2 Bc7 Nf4 Qbd5 Bc3+ Rb2 Bb7 Rd4 Ba5 Rb1 Bb4 Nb3 c1N Rb2 Na2+ Nc1 Ba5 Rb5 Rc2 Kb1 Bd2 Ra4+
3Qr1Nr/1N3pB1/3nNr2/1b2p1n1/B2bN3/1N2Rqr1/bn2QP2/B3RK1k b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 g4 Kd7 d4 Ke6 c4 a5 c6 h5 c5 Kd5 g5 e5 c7 a4 b6 a3 c6 e3 g6 Ke4 b7 h3 d5 e2 g7 a2 d6 h2 d7 h4 Qb3 h3 Nf3 Nh6 g8Q Bc5 Be3 Qf6 d8N Be6 c8N Nf5 c7 Bd4 Qc4 Nc6 b8B Nd6 Bh6 Nb4 Bg7 Rh6 Rg1 h1B Ne7 h2 c8N Rh3 Bc7 Rg3 Ba5 Bg2 Qf8 h1R Nb7 Rh8 Qd8 Bd5 Ng8 Nd3+ Kd2 e1N Ke2 Bh1 Bc3 Nb2 Nbd2+ Kf4 Ng5 Nf3 Rd1 a1R Re1 R1a6 Nb3 Kg4 Ne6 Ng5 Bg2 Qf3+ Kf1 Bc6 Qe2 Bb5 Bh3+ Kh4 Bg4 Rc6 Bh5 Kh3 Bg6 Kh2 Bc2 Qf5 Bd1 Bd5 Rg2+ Kh1 Bc2 Nbc4 Ba1 Qf3 Bd1 Nb2 Bc2 Nf5 Ncd6 Rca6 Ne4 Nd6 Nc1 Rb6 Ba4 Ba2 Nb3 Rb8 Qd7 Re8 Qd8 Nf5 Nc7 Rf6 Ne6 Rgh3 Rg3 Nd6 Rg4 Rg3 Rf4 Qh5 Rf3 Qg4 Rd3 Qf3 Re3
nr5Q/2QP2Kn/qn1b1rQ1/1pR1Q3/Q1R2pr1/B1r5/bB1b1k2/1BN2N2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 e4 g5 h4 f5 a4 f3 d4+ Kb6 h6 c5 h5 f2 d6 g4 a5+ Kc6 d7 c4 a6 g3 d5+ Kc5 h7 b3 h6 g2 a7 c3 d6 b2 Qc2 Nf6 Rh4 Na6 Bd3 f1R Nd2 b1N Ne2 Qa5 d8Q Be6 d7 Rb8 a8Q g1R Qa4 Rc8 Qb8 Na3 Bb1 c2 Rf4 Rc6 Qdc7 Ba2 Bb2 Qb6 Nc1 Rg4 Qe8 Rf3 Nf1 Rc3 Qg6 Rg8 h8B Nh7 Bf6 Be7 Bg7 Rb8 Bf8 Qb7 Qaa5 Kc4 Qa4+ Bb4 Bd6 Qa8 Ke6 Kd4+ Ke7 Nc4 Kf7 Qb7 Kg7 Nb6 Bf8 Rf6 e5+ Kd5 e6 Bd6 Rc4 f4 e7 Qc8 Nd3 c1B e8Q Bd2 Nc1 Qb7 Qcd8 Nc7 Qc8 Nca8 Qc7 Ng5 h7 Qa6 h8Q Nh7 Ng3 Be5 Bfa3 Bd6 Qe7 Bb4 Rc5+ Kd4 Qed6+ Ke3 Qe5+ Kf3 Nf1 Kf2 Ne2 Kg2 Bf5 Kf2 Rd5 Rd3 Rc1 Rd8 Rc4 Rb8 Nc1 Rc3 Bb1 Bd6 Rdc5
2r2bR1/3ppb1R/1P1BNkQ1/b3n1n1/R2RBB1Q/Kn2R3/2rN1r2/3r1q2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 h5 f4 a5 c4 a4 Kc2 h3 b4 h4 Kb2 h2 f6 h3 f5 d3 c5 d2 g5 Bb7 b6 Bg7 b5 Qf8 g6+ Ke8 c6 Kd8 c7+ Ke8 Ne2 Na6 Bg2 Bd5 b7 Rc8 b8B Nh6 b6 Nc5 Ka3 Ng4 Nd4 Bf7 Ne6 Nb3 Be4 Ne5 Qh5 d1R Nd2 Rh6 Re1 h1N Re3 h2 Qh4 Rh7 Qh5 Bh6 g7 Nf2 g8R h1R Rg7 Rh8 Rh7 Rh2 Ra2 Nh3 Ra1 Rd8 c8R Ng5 Rc4 Rc8 Bd6 Rf2 Rd4 Rc2 Bh1 Bg6 Rg3 Rh2 Be4 Nc5 Kb4 a3 Nb1 a2 Be3 Rh3 Nd2 Nb3 Ka4 Ngf7 Bg5 Rh2 Re3 Qg8 Bf4 Rf2 Rc1 a1B Kb4 Rc6 Rcc4 Bc3+ Ka3 Ba5 Rb4 Rc2 Ra4 Nd8 Nc5 Ne6 f7+ Kd8 f8Q+ Be8 f6 Qg2 f7 Qf1 Qg7 Rg8 Qg3 Ng5 f8R Rh8 Rf5 Bg6 Bc7+ Ke8 Qgh4 Rf8 Rf6 Bg7 Re6 Kf7 Bd6 Rc8 Rf6+ Ke8 Ne6 Bf8 Qf3 Bh5 Rff7 Bg6 Rfg7 Bh5 Rg8 Bg6 Ng7+ Kf7 Ne6+ Kf6 Qfh5 Bf7 Qg6+
3QQ3/bkp3KB/4Rn2/nQb1nQ2/1Nrr4/1bNpB1R1/2qQ3P/1Nb3r1 b - - 0 1 illegal: No proof kernel
QBr2n2/1Np2N1q/1p1b2Qn/r2b1n2/1N1RB1bk/P2R1B2/2KN3N/1r5n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 g4 Kf6 d4 e5 Kd2 h5 a3 h3 g5+ Ke7 g6 Kf6 g7 b3 d6 h4 d5 e4 d7 b2 d6 h2 Qg4 h3 Nf3 e3+ Kc2 e2 Nbd2 b1N Bg2 Be7 Rd1 h1B Nh2 e1R Be4 Nh6 g8B Ra5 Bgd5 Qe8 d8N Nc6 d7 Ne5 Nf7 Rg8 d8N Ra6 Nc6 Be6 Nb4 Qd7 Qg2 Bd6 Qg6+ Ke7 Bf3 Rc8 Bde4 Ra5 Bb2 Bd5 Bd4 Nc3 Ba7 b6 Bb8 Ne2 f6+ Ke6 Rab1 Ng3 Rb3 Ngf5 Rd3 Qe7 Nh8 Qh7 f7+ Ke7 f8N Nd7 Ne6 Nf8 Nf7 Rg1 Ned8 Rf1 Ng4 h2 Nb7 Bg2 Rd4 h1N Nh2 Bh3 Rd3 Bg4 Rd4 Ng7 f5 Rg1 f6+ Ke6 Re1 Ngf5 Re3 Ra1 Red3 Rb1 Nfd8+ Ke5 f7 Kf4 Na6 Kg3 Nb4 Ne6 f8Q Kh4 Qfe8 Nf8 Nf7 Kh3 Qc6 Kh4 Qa4 Rb5 Qa7 Ra5 Qa8
1rb1Q1R1/1R5R/1BB2q1r/1K2Q3/Q2r1N2/r1b2pPr/q1QpQNk1/1nn5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 a5 b4 f5 g3 d5+ Kb3 h5 Ka4 h4 c4 h3 b6 f3 c5 f2 g6 f4 c6 h2 c7 d3 g7 d2 b5 d4 b7 d3 b6 Qf6 Be2 f1Q Bh5 Bb4 Be8 Qe2 Bd7 Bc3 Nh3 Na6 b8Q Rh6 b7 Ne7 g8R Nb4 Qa7 Ned5 b8Q Na2 Kb5 a4 Nf2 a3 Qaa4 f3 Qdc2 d1R Be3 Nc1 Bb6 a2 Bc6 Ke6 e5 Kf5 e6 Rd2 Rf1 h1R e7 R1h3 e8Q Rd1 Rh1 Qd2 Qba7 Rb8 Q7a5 Qe2 Qb2 Qee6 Qe2 Qef7 Na3 Rd2 Rb1 a1R Nc4 Ra3 Ne5 Rd1 Qd2 Q7e6 Ng6 Qe2 Qde3 Qa2 Qe2 Kg5 Ne4+ Kg4 Nf4+ Rg6 Qec2 Rh7 Kc5 Ba6 Qf7 Be1 Qe7 Nc3 Ba7 Rh2 Rb2 Nb1 Q5b5 Bc3 c8Q+ Qfe6 Qce8 Qf6 Qba5 Bc8 Rb7 Rdd2 Bb6 Rd1 Ne2 Kh3 Nf2+ Kg2 Q5b5 Rh4 Qe5 d2 Qbd3 Rd4 Rhh7 Rh6 Kb5 Rdh1 Qde4 R1h3 Nf4+ Kg1 Qe2 Kh2 Ng6 Kg2 Nf4+
k7/2b3R1/1QrQ1nn1/1rRr1bBq/pP4Q1/Nq1NKQ2/r1Qr2pB/7B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 Kc7 h4 Kb7 h5 a5 h6 g5 d6 f3 d7 g3+ Ke3 c4 d5 f4+ Kd4 f2 d6 g4 e5 f3 h7 c3 e6 c2 b6 g2 e7 g3 e8Q Nc6+ Ke4 Nce7 Qg6 Qe8 d8Q Nf6+ Ke3 Bf5 Ne2 g1R d7 Rg2 Qg4 Qh5 Nf4 Ng6 Rg1 Bd6 Nd3 Bc7 Na3 a4 Bd2 c1R Qc2 Ra5 Ra2 Rg8 h8Q Rd5 Qf8 Rb5 Qd6 Rd8 Qhf8 Ka8 Qf7 Rh2 Bg2 f1Q Bh1 Qfh3 Rg2 f2 b7+ Ka7 b8B+ Ka8 Ra1 f1R Qfb3 Rcd1 Rc1 Rf4 Qf7 Rc4 Qfd5+ Rc6 Qdf3 Rf8 d8Q Rd5 Bc3 Rd2 Be5 Rf7 Bf4 Rd7 Bg5 Rb5 Qdc5 Rd6 Qb6 Rdd5 Rgg1 Rhf2 Qd6 Rg2 Qb1 Ra2 Rc5 Rgd2 Qb3 Qf1 Qc2 Qb1 Rg2 Qb3 Rh2 Qh8 Rh7 g2 Rg7 Qh5 Qd7 Bd8 Bh2 Bc7 Qd6
2BnrB2/1qQ4b/5bRP/2pqpR2/Nk4bB/2R2r2/B5NK/1b1nbQB1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 f4 Kd6 Kf2 Kc5 Kg3 b5 a4 g5 d4+ Kd6 h5 c5 f6 e5 f7 b3 h6 b2 f5 b4 a5 b3 f6 Ne7 a6 Qd7 a7 Qc7 Nf3 Nf5+ Kh2 Be7 f8B Nc6 f7 Nd8 Ba6 Ne3 Nc3 b1B Qf1 b2 Rg1 Bh7 Na4 b1B Nh4 Nd1 Ra3 Qb7 Be3 Be6 Rc3 g3+ Kh1 g2+ Kh2 Rc8 a8B g4 Bf2 Kc7 d6+ Kc6 d7 Bf6 Bc4 Rg8 Ba2 Rg5 Be3 Rf5 Bf2 Rf3 d5+ Kc7 d6+ Kc6 Nb2 Kb6 Na4+ Ka5 Be3 Qd5 Bb7 Rb8 Bc8 Kb4 Bg7 Ra8 f8R Rb8 Rg8 Ra8 Bf8 Qb7 Rh1 Qd5 Rg6 g1B+ Kg2 Bh2 Bg1 Bg3 Rh3 Be1 Kh2 Bef5 Ng2 Qb7 Rh5 g3+ Kh1 Bg4 Rf5 Nf7 d8B Rb8 Nh4 g2+ Kh2 Ra8 d7 Qd5 Bb7 Rb8 Bde7 Re8 Bc8 Qb7 d8Q Qd5 Qc7 Nd8 Bd4 Rf2 Kg3 g1Q+ Ng2 Qh1 Be3 Bh8 Bh4 Bf6 Nf4 Qhe4 Ng2 Rf3+ Kh2 Qb7 Bd4 Qed5 Bg1
3Q4/nB1bQ1N1/RbRpR1Rn/1R1p4/b3b1qP/4r1r1/KN1q3B/Q1b2k2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 axb5 c6 d4 Qb6 d5 cxd5 Nh3 Qc7 Ng1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb3 Ke5 c4 Ke4 h4 f5 b6 g5 b7 a5 c5 a4+ Ka2 a3 b4 g4 h6 f3 h7 f4 b5 d6 c6 f2 b6 g3 c7 g2 Nf3 g1Q Nd4 f3 Bf4 Nh6 Ne6 Ra7 Ng7 Rg8 h8R Nc6 b8R Qg4 b7 Qdg5 Rg1 Bd7 Bh2 Ke3 c8R Ra6 Qe1 Na7 Nc3 Ba4 Bh3 f1B Rc6 f2 Re8+ Be7 b8Q Bg2 Qd8 f1B Qd1 Kf2 e4 Ra5 e5 Bfb5 e6 Be4 Rb1 Bf8 e7 Qd2+ Rb2 Ra6 Qa1 Ra5 Ra6 Bd7 Nd1+ Ke2 Rg2+ Kf1 Rh7 Rc5 Rc2 Rc3 Nb2+ Qe1 Rc1 Re3 Rcc6 Qed1 Nh5 Rg5 Rg7 Qe1 Rg6 Bg7 Re6 Bd4 Ng7 Bb6 Rg8 Rg6 e8Q Rg5 Qee7 Qed1 Qc1 Qe1 Qc3 Qd2 Qd4 Qf4 Bf5 Rgg3 Re2 Qg4 Rg6 Be8 Bc8 Bd7 Bb7 Qg5 Ka1 a2 Rf8+ Qf4 Rff6 Qf5 Re6 Qg4 Rg2 Qb4 Rgc2 Qd2 R2c5 Bb1 Nd3 Bbc2 Kb2 a1B+ Ka2 Bb2 Rb5 Ba3 Qa1+ Bc1 Nb2 Bd3 Bc8 Be4 Bb7
6nK/2b2R1Q/qP2rr1b/3n4/Bq2pp2/B2Q1R1b/1RR1BNbk/R2b2N1 b - - 0 1 illegal: No proof kernel
2bq4/k3n1q1/p2N4/2Q1BR2/1qqNnR1B/P1b3Nr/1RrRRQqp/3K4 b - - 0 1 legal: proof: e4 c5 d4 e5 h4 f5 b4 g5 bxc5 gxh4 Bd3 Na6 dxe5 Ke7 e6 Nb8 e5 Ke8 Be4 fxe4 g4 d5 f4 b5 c4 h5 c6 d4 c7 a6 g5 h3 e7 Kd7 e8N Kc6 f5 Kb7 e6 h4 g6 b4 g7 d3 f6 e3 a3 e2 f7 b3 e7 b2 c5 Nf6 g8R Ka7 c6 Bf5 c8Q h2 c7 h3 Bf4 Rh7 Rg4 Bd7 Qc2 Nc6 Ra2 Bg7 Nc3 b1Q+ Kd2 Qf1 f8B Rb8 Nd6 Rb2 Nf3 Rh5 Rhg1 h1Q e8R h2 R1g2 Bh8 Nce4 Bf5 Be7 Rh3 Ng3 Qhg1 Rf2 Qgg2 Rh4 Bg4 Qf5 Bg7 c8R Bh8 Qb5 Qa1 Rb8 Bc8 Rb6 Qaf1 Qc5 Qc1+ Kc3 d2 Rh5 d1Q Rf5 Qdf1 Kd3 Qa1 Kd2 Nd5 Bh4 Nf6 Ree5 Ne7 Rb8+ Rb6 Qb2 e1Q+ Kc2 Qa5 Qbd4 Qfb5 Ree2 Ne4 Qe3 Qf6 Kd1 Qc4 Rad2 Qff7 Rf1 Bc3 Be5 Qg7 Nd4 Qab5 R1f4 Qa5 Qd5 Rb2 Qf2 Rc2 Rb2 Qab4 Qc5+
1bNK1N1q/1bn1R1b1/p1pBQ3/1r1N1N2/b1b1R3/k2q1Q2/B3P3/B2rn2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 b4 Kd6 d4 f5 h4 g5 b6 a6 h5 f3 Kg3 c6 b7 f2 b5 Be6 h6 Qf6 b6 Bd7 h7 Be8 Nc3 Bh6 Qd3 Bf7 Bg2 f1B Nh3 Bg7 Bb2 Ne7 Qf3 Rd8 h8Q Nd7 b8N Nc5 b7 Nd3 Qe8 Ne1 Nd7 Rab8 Ra4 Qg6 Nb6 f4+ Kf2 Qh5 Ba1 Qh8 Rg1 Bg6 Bh1 Bg2 Nc8+ Kc7 Qf7 Bc2 d6+ Kd7 Qf6 Nd5 Qe5 Nc7 d5 Bb3 Re4 Ba4 Rf1 Ra8 b8B g3+ Kg1 g4 Nf2 Bh3 Bg2 Ra7 Nh1 Rb7 Qf6 Rb1 Qg6 Rd1 Qh6 Re8 Rf2 Re5 Qe6+ Kd8 d7 Rg5 Bf1 g2 Kh2 Rh5 Ba7 Re5 Bc5 Rh5 Bd6 Re5 Qe3 f3 Kg3 g1B Kf4 g3 Bg2 Bh2 Qd3 Bf5 Kg5 Bg4+ Kg6 Rh5 Bh3 g2 Kf7 g1Q Rg2 f2 Qf3 Bf5 Rg5 Bh7 Rge5 f1B Bg4 Rg5 Bh5 Bf5 Bg6 Rh5 Bh7 Qc5 Bg8 Qd4 Bc5 Ng2 Qg6 Qd3 Na7 Re1 Re7 Na8 Qgg4 Kc7 Ke8 Be6 d6+ Kb7 Qg6 Rd1 d8N+ Kb8 d7 Kc7 Bb4 Kb6 Nf7 Ne1 d8N Bb8 Bd6 Ka5 Nh6 Bfh3 Qgf7 Bc8 Ne6 Rb5 Kd8 Bb7 Nc8 Nc7 Nf8 Bf5 Qb3 Bh7 Be6 Bg8 Nf5 Bf7 Qd5 Bg8 Qe5 Bf7 Ba2 Bfb3 Qd5 Bc4 Bf4 Kb4 Bd6+ Rc5 Qe6 Ka3 Rd4 Ne8 Nd5 Nc7 Nb4 Ra5 Re4 Rb5 Nd5+
1n3K1N/qQr1P3/1qrNq1q1/b1N1Q3/k1Np3B/1n1q1bpR/1R3B2/3B3N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 a5 b4 g5 h4 d5 c4 Kd7 e4 d3 c5 d2 c6+ Kd6 b6 d4 c7 Kc6 e5 a4 b5+ Kc5 e6 Kb4 h6 a3 h5 a2 e7 Nc6 b7 Qd7 b8Q Qe6 h7 Ra5 h6 Ra6 b6 Na5 b7 Nb3 Na3 Ka4 Qe2 d1Q Be3 Qd3 Nh3 Nf6 Rb1 a1Q Nc4 Nd7 Nf2 Rc6 Rb2 Qc2 Rh3 g4+ Kg2 g3 Kf3 Bg7 Nh1 Be5 Bf2 Bd6 Bg2 Bb4 Qe5 Ba5 Qa7 Qcb1 b8N Bb7 Na6 Rc8 h8N Nb8 h7 Qa3 Qb6 Qb4 Qa7 Qb6 Bf1 Qa1 Be2 Qa3 Bd1 Qg6 Ke2 f3+ Kd3 Ba8 Qb7 f4+ Qf5 Qa2 Ke4 Qa7 Ke5 Qb1 Bg1 f2 Kd5 f1Q Bf2 f3 Qe5 Rg8 c8N Qe1 N8d6 Rgc8 Nb4 R8c7 Nd3 Qh5 Ke6 Qe3 Bg1 f2 Kf6 f1Q+ Kg7 Qfe1 Kf8 Qg6 Bf2 Qb4 Qe4 Qbb6 Nc5+ Kb4 Qe5 Qbd3 Nhf7 Qee4 h8B Qeg4 Bf6 Qe6 Na6+ Ka4 Nh8 Qh5 Bg5 Qhg6 Bh4 Rc5 Qc8 Bf3 Qb7 R5c6 Nc5+
1q1B2B1/1pRQ1b1Q/b1q1N1Nk/rR2bQ1n/n2p1P2/4b3/KR3r1b/5Q1Q b - - 0 1 illegal: No possible last move, all moves rejected
1r1r1B2/1p2Q2Q/2q1NR1n/1r1k3p/1nbr2q1/1BN5/2Br2PB/RB1Rb1K1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 a4 Kd6 e4 h5 d4 c5 e5+ Ke7 e6 Kd6 a5 f5 e7 b3 e8B c4 g6 f3 g7 b2 a6 c3 a7 c2 Ba4 f4 Ne2 Nf6 g8B Qd7 Kg1 Na6 Nbc3 b1R Ba3+ Nb4 Qd3 c1Q Bc2 Ng4 Qh7 Rb8 a8R Nh6 Ra6+ Qc6 Bf7 Be6 Bfg6 Bg8 Bb3 Qe1 Bgc2 Qg3 Rb6 Bf7 Ra6 Qg4 Rb6 Kd7 d6 Bg7 d5 Rhd8 Nd4 f2+ Kh2 f3 Bfd3 f1R Ne6 Rfc1 Rd1 f2 Ra6 f1R Bg6 Rf6 Kg1 Rf2 Bgd3 Ke8 d7+ Ke7 d6+ Kf6 Rb6 Ke5 Ra6 Rb2 Bb1 Bf6 Bdc2 Rd2 Rb6 Bh4 Ra6 Rg8 d8B Be1 d7 Re8 Be7 Red8 Bf8 Rd4 Bf5 Rbd2 Bfc2 Bg6 Bb2 Bd3 Ba3 Bc4 Bb2 Ra8 Rb6 Rdb8 d8Q Ra5 Qh4 Rb5 Q4e7 Rdd8 Ne4+ Kd5 Be5 Rd4 Bh2 Rd2 Bd3 Rc3 Bdc2 Rcd3 Nd4 Qe8 Rf6 Qc6 Ne6 Rd4 Nc3#
1nNqn3/q1b1bQ2/1r1R2N1/2BbQB1k/2N4R/2Pr2pb/p2B1Nr1/K1N5 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 f4 a5 b4 d5 h4 g5 b6 e5 h5 g3 h6 g2 c3 e4 Kc2 e3 Kb2 e2 f6 Kg6 f7 e1Q b7 g4 h7 d3 f5+ Kf6 b5 d2 b6 Kg5 f6 g3 Qb3 a4 Bd3 d4 Ne2 g1B Rh4 Bc5 f8B Be3 f7 d1B Nd2 Bf2 Nc4+ Be3 Bd2 Ra6 Bf5 d3 Nc1 a3+ Kb1 Bb4 Bc5 Bf4 f8N Qf2 Ng6 Nf6 Nge5 Bf3 Ng4 a2+ Kb2 Re8 h8N Re2 Ng6 Ne8 Rb1 Be4 Ka1 Bd5 Rb2 Qe3 Nf2 Bc7 Rb1 Re1 Rb2 Rg1 Rb1 Rg2 Rb2 Nc6 b8N Bd7 b7 Rb6 Rb1 B7e6 Nd7 Nb8 Nd6 Ba3 Nde5 Bd7 Nec4 Bb4 Be1 d2 Nc8 d1R Rb2 Qd4 Rd2 Qe3 Rdd4 Rd3 Bd2 B7e6 Be4 Bh3 Bf5 Be4 Rd6 Bd5 Qa4 Ba3 Qd7 Bb4 Rf4 Kh5 Qf7 Nc6 b8Q Qd4 Qa8 Nb8 Qc6 Qe3 Qcd7 Qee7 Qde6 Qed7 Re4 Qa4 Qe5 Qa7 Rf4 Qf6 Bd4 Qe7 Rc6 Bbd6 Bc5 Qd8 Rg4 Bf8 Rd6 Be7 Rh4+
2k1R3/2q1bqrn/1n1B1Q2/5bN1/b1Bn3r/pP1N2pQ/1B1BR1n1/R1K3B1 b - - 0 1 illegal: No possible last move, all moves rejected
1bKNb3/2Rr2bR/5QbB/Nq6/1r3BBP/Q1p2kn1/2p2r1B/nNq2B2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 g5 h4 c5 d4 f5+ Kf3 Kd5 b4 a5 e3 a4 h6 c3 h7 c2 b6 g4+ Kg2 Ke4 d5 f3+ Kg3 a3 d6 f2 b5 c4 b7 a2 b6 c3 d7 Na6 b8B Nh6 b7 Nc5 Bf4 Rb8 Nf3 Qg5 d8N Nb3 Nd4 Bg7 Rg1 Bd7 N4c6 Be8 Qd6 Rf8 h8Q Rf7 Qdf8 Rd7 Na5 Qh5 Qa3 Bg6 Kh2 g3+ Kh3 Kf3 e4 g2 e5 Be8 Bh2 f4 e6 Qb5 e7 Nf5 Qf8 Ng3 Qf6 Rc8 b8B Rc4 Be5 Bg6 e8B Rb4 Bd3 f1B Bc7 Kf2 Kg4 f3+ B7f4 Be2 Re1 g1B Bf7 Kg2 Be6 Ba7 Bdc4 Bd1 Bf1+ Kf2 Bf5 Bb8 Re7 Be2 Be6 Bed3 Bd2 Be8 Bc1 Be4 Bh6 B4g6+ Bcf4 Rd5 Rc7 Rd7 Be2 Kg2 Bf5 f2 Kg5 Qc4 Bfg4 f1R Bd3 Rf3 Bf1+ Kf2 Nd2 Qe2 Rd1 a1Q Nb1 Qd3 Re1 Qb2 Re7 Na1 Rf7 Qc1 Re7 Bh8 Rh7 Qa6 Qg7 Qb5+ Kf6 Qb7 Ke6 Qb5 Qf6 Bg7 Be5 Rff4 Bd6 Ke3 Be5 Ke4 Bd6 Rf3 Bdf4 Rf2 Ndc6 Rd5 Ke7 Re5+ Kd8 Re7 Kc8 Rd7 Bgh3 Kf3 Nd8 Rd1 Be6 Rd7 Bg4+
r1r5/4n3/1QrQ1qRQ/4B1bN/1qR1NQ1p/1Q1B2p1/1N4Pk/bKnn3r b - - 0 1 legal: proof: f4 b5 d4 g5 a4 c5 axb5 cxd4 h3 e5 Nc3 exf4 Ra6 g4 Ra4 g3 Nb1 Bb7 Ra2 Bf3 Ra1 Bg4 hxg4 Qe7 Nc3 Qf6 Nb1 Qd8 Kd2 Ke7 b4 Ke6 e4 Ke5 c4 f5 Kc2 d5 b6 a5 b5 h5 b7 f3 g5 h4 b6 a4 c5 f4 g6 a3 c6 a2 c7 f2 c8N f3 g7 Na6 b8Q+ Qd6 b7 Be7 Ne2 Nc5 Bb2 Nd3 Nbc3 Bg5 Nb6 Ne7 g8Q Nc1 Nba4 Rh6 Qbd8 Qb4 Nf4 Rc6 Bd3 f1Q Qb6 f2 Nh5 Rcc8 Rb1 a1B Qh7 Rc6 Qh6 Rac8 Nf6 Kf4 b8Q+ Ke3 Qd6 Ra8 e5 Rcc8 e6 Rc6 Bf5 Qa6 Bg6 f1R Nh5 Rff8 Bd3 Kf2 Re1 Rg8 Re4 Rgc8 Qf3+ Kg1 Qff4 Ng8 e7 Kh2 e8Q Ne7 Qbc5 Qab6 Qef7 Qd8 Re6 Qf8 Ne4 Qh8 Rg6 Qf6 Bc4 d3+ Kd1 d2 Kc2 d1R Be5 d4 Qb6 Qa3 Rb4 d3+ Kb1 d2 Bd3 Rh1 Qb3 d1N Rc4 Qb4 Nb2
1Nb1N1qb/6nk/1R4B1/1rqQQN2/3Bp1B1/4b3/K1RN2Pp/1rNq1bn1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kg7 b4 h5 c4 a5 Kc2 d5 Kb3 e5 b6 a4+ Ka2 h3 f6+ Kh7 f5 a3 b7 h4 b5 d3 b6 d2 f7 d4 f6 d3 c5 h2 c6 h3 c7 Ra5 Bb2 Rb5 Bd4 Bh6 Ne2 Ne7 Nc1 Nbc6 b8N Be3 b7 Nf5 f8Q Qe8 f7 Ng7 Qc5 Qg8 Na6 e4 b8N Ne5 Be2 Nf3 Qe5 Ng1 Bh5 Rc5 Qb3 d1Q Nd2 Rb5 Rb1 Qc2+ Rb2 Qc3 Qbe6 Qc5 Rc2 Rb1 Q6d5 Rb5 Nf1 d2 Bg4 d1B Nd2 Be2 f8N+ Kh6 Bh5 Bf1 Ng6 Kh7 Nh4 Rb1 Nf5 Rb5 Ka1 a2 Be8 Ra5 Kb2 a1B+ Kb1 Rb5+ Ka2 Ne2 Rg1 h1Q Bh5 h2 Bg4 Bb7 c8B Bb2 Be6 Bc8 Bf7 Ra5+ Kb1 Qe8 Nc7 Be6 Ne7 Nh5 Nd7 Qa8 Nf5 Rb8 Be8 Rb7 Bf7 Qg8 Nb8 Bc8 Qe8 Rb6 Bf6 Rb4 Be7 Bh8+ Ncb3 Ng7 Bf6 Ra1+ Kb2 Rd1 Ka2 Rb7 Rc4 Rc1 Rb4 Rb1 Bd4 Rb6 Ra4 Rb4 Ra6 Rb5 Rd6 Nf4 Rb6 Be2 Rc1 Bc4 Qee5 Ne2 Rc2 Qd1 Ne8 Ng1 Bfh5 Be2 Nc1 Bf1 Bg6#
N3k3/rR4br/bn2Q1K1/1R2bQQN/1Q1p4/B1pn1Q1b/2Pq1r2/2BB2q1 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 h5 Ke3 c5 Kf4 a5 Kf5 d5+ e6 h3 g4 h2 f4 a4 b4 a3 b6 c4 b5 a2 b7 d4 g5 e3 b6 c3 g6 h4 g7 e2 Kg6 e1R e7 h3 f5 Nd7 b8Q Ra4 f6 Ra7 b7 Ra6 Qf3 Nh6 g8Q Nb6 Ne2 Nf7 Qbf4 Rh7 b8Q Ra7 Na3 Ba6 Ng3 Re2 Nh5 Rf2 Rb1 a1B Be2 Bb2 Nb5 Ba3 Qf5 Bd6 Bd1 Be5 Rg1 h1B Rg5 h2 Qd6 Qc8 Qb4 Qe6 Qg7 Bg2 Nc7+ Kd7 Na8 h1Q Rb2 Qg1 Qh6 Bg7 Rb3 Nd8 Rb2 Bh3 e8Q+ Kc8 Qee7 Nc6 Qf7 Kd8 Rb1 Qc4 Q7e6 Qb5 f7 Qd3 f8B Qd2 Qa4 Bc7 Q5f4 Nd5 Rb7 Nb6 Bfa3 Nb4 Qfe5 Nd3 Qb4 Bd6 Qee4 Bg3 Rb5 B3e5+ Qg5+ Bgf6 Qec4 Ke8 Qef5 Bg7 Qce6#
2RQ4/q1q5/1b4bB/3K2QB/nBPprb2/qNNQpB2/r4nB1/R2q2k1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 Kd5 b4 h5 g6 a5 g7 e5 g5 h4 g6 d3 Kc3 e3 b6 Ke4 Kc4 d5+ Kb3 e2 c4 e1B b5 h3 f5 h2 b7 d4 b6 a4+ Ka2 d2 f6 Ke3 f7 Kf2 Ne2 a3 Kb3 e4 Nec3 a2 Bg2 Nd7 b8Q Rh4 b7 Nb6 Qe5 Nf6 g8B Na4 b8Q Bc5 f8B Bb6 g7 Bf5 Bd5 Bg6 g8B Qc7 Qg5 Ng4 Bgf7 e3 Bh6 Ra7 Bdf3 Ra8 Rg1 h1Q Kb4 Ra7 Qb3 d1Q Nd2 Qhh2 Ba3 Qhd6+ Kb5 Ra8 Qe8 Qa7 Rh1 Qdc7 Rh3 Kg1 Qed8 Bf2 Bb4 Bg3 Qa3 Bh2 Nb3 Nf2 Be8 Re4 Rh5 Qg7 Kc6 Bf4 Kd5 Qgc7 Rh4 Bh7 Beh5 Bg6 Rc1 a1Q Rb1 Qb2 Ra1 Bh2 Rf4 Bg3 Rf8 Bf4 Qd7 Qa2 Rc8 Qb2 Qdd8 Qbc1 Qa2 Qa3 Qd2 Rb8 Nc1 Bc5 Ba5 Rb2 Qd3 Bb6 Nb3 Ra2 Bb4
Q3r3/r2NRn1K/q1Nr2RB/b6n/1P3Q2/pq1k1BRR/1pnr2RN/3b4 b - - 0 1 illegal: No proof kernel
3Nk1BN/4Q1K1/r1qBb3/b1r2QN1/1p1Q2N1/3NPnqR/1p6/3nnnqR b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 f5 Kf3 g5 d4 b5 a4 c5 h4 c4 e3 c3 h6 c2 d6 b3 h5 Rh7 a5 Be7 a6 Nc6 d5 Na5 a7 Rg7 h7 Nf6 h8N Qb6 h6 Ng4 h7 Be6 Bc4 Nf2 Ng6 Nc6 h8N Bd8 Ne5 Rc7 Qd4 Nd1 Ba3 c1N Ne2 b2 Rh3 Nd3 Nbc3 Qa6 Bc5 b4 Nc1 Qb6 Ne4 g4+ Kg2 g3 Kf3 g2 Ng4 g1Q Ng5 Rcc8 Rb1 Qb5 Ra1 Ba5 d7+ Kd8 Bd6 Nce5+ Ke2 Ne1 Nd3 f3+ Kd2 Rab8 a8Q f2 Qaa7 f1Q Qac5 f4 Ba2 Qh2+ Ndf2 Bg8 Rb1 f3 Bf8 Qg3 Qc2 Qa4 Qf5 N1d3 Bb3 Qfg2 Ra1 Nc3 Rah1 Rc5 Be7+ Kc7 d6+ Kc6 d8Q Ne1 d7 Rb6 Bf7 Ra6 Bd6 Nd1 Qe7 Qg1 d8N+ Kb5 Bh5 Be6 Bf7 Kb6 Bg8 Qc6 Nd3 f2 Nf4 N5f3+ Ke2 Nc2 Kd3 f1N Rh4 Qb5+ Ke4 Nce1 R4h3 Qa4 Nd3 Qd7 Nc6 Kb7 Nd8+ Kc8 Qfe5 Qc6+ Qed5 Bf7 Kf5 Be6+ Kf6 Qb5 Qf5 Qc6 Qf8 Kd7 Qg7+ Ke8 Qb7 Rb6 Kg7 Ra6 Qe7#
1K1R1B2/rn1Q3B/q1Q5/kBbn1pNP/1bq3n1/r7/NpbBbR2/3B1Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Ke4 f5+ Ke5 c5 d4 Kc7 e4 Kb6 a4 g5 h4 b3 a5+ Ka6 d6 c4 d7 g4 d5 b4 h6 g3 d6 b2 h7 g2 h5 b3 Nh3 g1N Ng5 f3 Nc3 b1B Rh2 f2 Bd2 b2 Na2 Qb6 d8B Bh6 d7 Ra7 Be7 Bb7 d8Q Nf6 Bf8 Nh3 Qd7 Nc6+ Kd6 Nd5 e5 Bc2 e6 Nd8+ Qc6 Bg7 e7 Bd4 e8B Bc5+ Kd7 Ba8+ Kc8 Nb7 Bg6 Bb4 Be2 f1Q Kb8 Nf2 Bf3 Ng4 Rf2 Qe2 Qf1 c3 Rd1 Qc4 Be2 Rg8 h8Q Rg7 Bf3 Re7 Qd7 Re3 Qf6 Qc6 Be2 Kb5 a6 Ka5 Bd3 Q4b5 Qfe7 Ndf6 Be2 Nc5+ Qb7 Bb3 Qe6 c2 Bc4 c1B Be1 Bc2 Be2 Ra3 Bf3 Be3 Rd8 Qc4 Qbd7 Rc7 a7 Q6a6 Bd1 Bf3 a8B Ra7 Bd2 Be2 Bh7 Nd5 Bc6 Nb7 Bb5 Bc5 Qec6
3R1bBn/r1qrb2Q/5B2/3RPBKb/p3q3/2p1Q2b/2n1Q2B/q1NBN2k b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 d4 Kd5 e4+ Ke6 Kg4 c5 b4 a5 e5 c3 b6 a4 b7 c2 b5 c4 g6 c3 b6 f3 g7 f2 Nf3 Ra7 Be2 f1B Ne1 Nc6 b8Q Qc7 b7 Kd5+ Kg5 Ke4 g4 h5 d5 f5 d6 h4 d7 f4 d8B f3 Bf6 h3 Bf4 f2 Bh2 Nge7 g8B Ng6 Bh7 c1B+ Nd2+ Ke3 Ra2 Nb4 Nb3 Ba3 Rd2 Nc2 Rd5 Bae7 Nc1 Bf5 Bf3 Be2 Qa8 f1Q b8Q Kf2 Qab7 Be6 Qd3 Qg1 Qe3+ Kf1 Q8c8 Rg8 Qe8 Rg7 Qeb5 Nh8+ Bg6 Rh7 Bf5 Rg7+ Kh4 Rf7 g5 Bd7 g6 Rg7 Bg3 h2 Kg5 Rf7 g7 Bc8 Bd3 Bh3 g8B Rh7 Bf5 Rf7 Qb2 Bd1 B3e4 Bh5 Bf3 Rh7 Bd1 Rf7 Ned3 Kg2 Q2b5 Qe1 Rf1 h1Q Bh2 Qg1 Rf4 Qe2 Ne1+ Kh1+ Rg4 Qf3 Qbe2 Qe4 Rg3 Bb4 Rd8 Rd7 Rg4 Bbe7 Rg2 Qd5 Rg4 Qf1 Rd4 Qe4 Rd5 Qcc4 Ng2 Bc5 Nb3 Rd6 Qf7 Rdd7 Qh7 Nb4 Bc2 Qa1 Nc1 Bce7 Ne1 Qc7 Bd1 Nc2 Rb5 Rb7 Ra5 Ra7 Rd5
2B3B1/NQr3q1/B1rBR2n/N1NKP2p/5B2/5rQp/1bR1b1k1/n1q1qq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 a5 c4 h3 b4 a4 g5 a3 c5 d3 c6 f6 b6 a2 c7 d6 b5 d2 b7 Na6 b8N Qd7 b6 Nb4 b7 Ra7 g6 Nc2 g7 Nh6 Qe1 d1Q Bf4 Qc1 g8B+ Qf7 e3 Bg7 Nd2 Ra3 Qh4 Rh7 Rb1 Na1 Ba6 f5+ Kd4 d5 e4 Bh8 Rh2 Rf3 Nc4 Qe1 Kc5 d4 Nd7 d3 b8B d2 Na5 d1Q Rc2 Qc1 Ne2 Bb7 c8B Rg7 Be3 f4 Bd6 Bd5 Bd2 Bc4 Nc3 Be2 Nb5 Rg6 Na7 Bf6 Bh7 Qg7 Rb7 Rb3 Kd4 f3 Bf4 f2 Rb6 f1Q Rbc6 Rb7 Rb6 Rc7 Nc5+ Kf7 Rc6 Rg3 Kd5 Rf3 Bg8+ Kg6 e6 Bb2 e5 Kf5 Qf6+ Kg4 e7+ Rd7 Qf7 Kh4 e8Q Rc7 Rb6 Rc6 Qb7 Rc7 Bg5+ Kg3 Bf4+ Kg2 Qd8 Nb3 Qf8 a1R Qf6 Ra2 Qh4 Na1 Be7 Raa3 Re6 Rab3 Bf8 Rb6 Bd6 Rbc6 Qg3+
bK3b2/1R4qR/NQk5/B3p1N1/q1rB4/1br2nRp/1Q1P1RBR/2n2bq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 h5 a4 c5 g4 b5 f4 h3 f6 h2 a5 c4 f5 b3 a6 c3 g5 b4 f7 c2 f6 h4 d6 h3 Kd5 b2 a7 b3 g6 Qe8 g7 Qd8 Bg2 Be7 f8B Qe8 f7 Ba6 Na3 b1B Bb2 c1Q Bd4 b2 Qc2 Nh6 g8R Ng4 Nf3 Qg1 Nb5 Rh4 Nc7 Bf1 Ng5 Nf2 Na6 Nc6 Ra5 Rb8 a8R Rc8 Rb8 Nd3 Rb7+ Rc7 Rh8 Nc1 Ra3 Ba2+ Qb3 b1B Rh7 Be4+ Kc5 Bf3 Qb2 Bb3 Kb6 Rf4 Bc5 Nd4 Ka7 Kc6 d7 Bfd5 d8Q Nf3 Kb8 Rc4 Bd4 Bb4 Bd6 Qd7 f8R Qg7 B6c5 Be4 Rf7 Bd5 Bb6 Bf8 Ba5 Rc3 Bc5 Qd4 Rf4 Qa4 Bd4 Rc4 Re4 Rc3 Re2 Rc4 Rf2 Rc3 Rg1 h1Q Ra1 Be4 Ra3 Qh2 Rh1 Qg1 Rh2 Rf7 Qe7 Rf4 Qb4 Bed5 Ba7 Rfc4 Bd4 Be4 Qb6+ Kd5 Bh1 Rd3 Ne6 Nh4 Qa7 Ba2 Rbf7 Kd6 Rb3 Ba8 Ng5 Re3 Rd3 Bb3 Bg2 Rg3 Rdf3 Kd5 Rb7 Kc6 Re3+ Rf3 Re4 Rfc3 Rg4+ Nf3 Rg3 Kd6 Qb6+ Kd5 Qb4 Kc6 Qb6+
N2nrQn1/1qNK2N1/rB2R3/2P1BBn1/1Nn1k3/3R2p1/2b1pQ2/r1N1bq2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 f4 e5 b4 d6 c4 d3 h4 d2 h5 a4 b6 e4 b7 a3 b5 a2 b6 e3 h6 g3 h7 g2 Nc3 g4 Qe1 d1R+ Bd3 g3 Rh6+ Kg7 f6+ Kf7 f5 Na6 Kc6 d5 b8N d4 b7 Be7 Nd5 Nc5 Nc7 Qf8 Nba6 Ne6 b8N Bb4 Nd7 Qe7 Qf2 Be1 Ne2 g1N Nb6 Nf3 Nb4 Ra6 c5 Nfg5 Bd2 Rb1 Nc1 e2 Be4 d3 Rg6 Ra7 Nba8 Ba6 Bf4 d2 Bd3 d1N Be4 Qf8 Kd7 Qb8 Rh6 Qb7 Bc2 Kf8 f7 Kg7 f8N Nd8 Re6 Ne3 f6+ Kh6 Bd3 Nc4 f7+ Kg7 Bf5 Bb5+ Rc6 Ra6 Ne6+ Kf6 Bd2 Ke5 f8Q Ba4 Ng7 Bc2 Rd6 Rb3 Rd3 Rba3 Rb1 a1Q Rbb3 Qc3 Rd6 Qcf3 Rbd3 Ra1 Bc3+ Kf4 Re6 Ra7 Nba2 Ra6 Ba5 Qe4 Nb4 Qb7 Qh2 Qf1 Bb6 Nh6 Qe7 Rf8 h8B Re8 Qf8 Ng8 Qf2+ Nf3 Nh5+ Kg5 Bg6 Kg4 Be5 Kg5 Bf7 Kf5 Ng7+ Ke4 Bh5 Ng5 Bg4 R6a3 Bh3 Ra6 Bf5#
q6r/1nK2n1Q/BrNn4/1P6/rr1Rb1QR/3Q1N2/1BpQ2p1/Q1bq1B1k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 f4+ Kd2 c3+ Kd3 a3 Kc4 a2 h7 c2 Na3 f2 Rh4 g4 Bb2 g2 Nf3 g1R Nh2 g3 Qg4 f3 Rd1 Na6 b8Q+ Nc7 Rd3 a1N Qb7 g2 Rd1 Nh6 e5+ Ke7 Kc5 Ra4 Kb6 Bf5 e6 Kd6 e7 Qa8 e8B Nf7 Qa7 Bh6 Bd7 Be4 Bc8 Nb3 Ba6 Na5 Qb7 Bc1 Nc4+ Ke7 d6+ Kf6 d7 Ne8 Qc7 Ned6 Ne5 Nab7 d5 Rh1 Rd4 Rb4 Bd3 f1Q Nc6 f2 Bc4 Qd1 Bf1 Na5 Qa7 Nab7 Kc7 Rb8 Qg8 Kf5 h8Q Ra4 d8Q Rb4 Qg3 Ra4 Qd3 Rb4 Qdg8 Ra4 Rh6 Kf4 Qhh7 Rb4 Qc8 Ra4 Qd2+ Kg3 Rh4 Rb4 Qb6 Ra4 Qba5 Rb4 Qa1 Ra4 Be2 f1R Qg4+ Kf2 Bc4+ Kg1 Bd3 Rf3 Bf1 Rb3 Qd3 Rbb4 Qd2 Nc4 d6 Rh8 d7 Rb8 d8Q Ncd6 Q8g5 Rh8 Qg3 Rb8 Qgd3 Rh8 Ng4 Rh2 Qgg8 Kh1 Qgg7 Rh3 Nh2 Rf3 Qgg8 Rf6 Qg4 Nf5 Ne7 Rb6 Nc6 N5d6 Nf3#
2KQ4/B1Q3N1/Nrn5/Pkn1br2/R1rN1bp1/1bRq1N2/5qNp/1Bb1Q3 b - - 0 1 illegal: No proof kernel
1R1RQ2B/3n4/B2N2bP/2r2RB1/q1p1RRp1/bQK5/k2n1b2/2nq1rNn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 h4 Kd6 d4 g5 Kd2 a5 e4 f5 h5 c5 h6 g3 b6 f3 b5 g4 b7 a4 b6 f4 Be2 c4 Rh4 f2 Kc2 f1Q Kc3 a3 Bd2 f3 Qb3 f2 Bf3 g2 Bg5 a2 Nd2 Nd7 b8R Ngf6 b7 Qe8 Re1 a1N Rh5 Ra5 Ra8 Qe2 b8R f1N Ra7 Ng3 e5+ Ke7 e6 Kd6 e7 Nh1 Rc7 Qd1 Re4 Rc5 Ra7 Rh7 Ra2 Rf7 Raa8 Qd8 e8Q Qb6 Ra5 Qc6 Rf4 Qa4 Ne4+ Kc7 d6+ Kc6 Bh4 Be7 Rhf5 Bb7 Bg5 Ba8 Nh3 g1B Re5 Bf2 Ng1 Nh5 Bf6 N5g3 Bh8 Nf1 Re6 Kd5 Rab5 Nd2 Bg2 Nb6 d7 Bc6 d8B Nd7 Bf3 Bd6 Bg5 Rf6 Qb2 Nab3 Re7 Nc1 Qb3 Ne5 Re6 Bd7 Re7 Bf5 Re6 Bf8 Nd6+ Be4 Re7 Nd7 Bg2 Nf3 Ra5 Bg6 Ree4 Nd2 Ra6 Rc8 Ra5+ Kc6 Raf5 Be7 Nb5 Ba3 d5+ Kc5 Nd6 Re6 Rd4 Re1 Rde4 Rc7 Nf7 Rf1 d6+ Ne5 d7 Rc6 d8R Rc7 Rf6 Nd7 Re3 Rc8 Bb7 Rc7 Ree4 Rc6 Qc2 Kb5 R6f5+ Rc5 Qd3 Ka5 Qe3 Kb5 Nd6+ Ka5 Kd4 Kb4 Ba6+ Nb6 Ra8 Nd7 Rac8 Nd3 Ra8 Kb3 Rac8 Ka2 Rb8 Bh4 Qh3 Nc1 Qc3 Be1 Qb4 Bh4 Kc3 Bf2 Qb3+
1b1n4/Q1Q5/1Q1rq2P/q2Nqp1q/1N2Br2/1rp1N2R/2R2nN1/kbKNB3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 h4 Kd6 d4 a5 Kd2 f5 e4 g5 h5 c5 b6 g3 h6 f3 b5 a4 b7 a3 b6 g2 Nh3 g1R Bg2 f2 Qb3 f1Q Nf4 a2 Rh3 c4 Nc3 g4 Nd1 Nc6 b8N g3 b7 Ra3 Nd7 Nf6 Ne5 Be6 Qb6 Qf3 Ng4 Rf1 Nge3 Qh5 b8Q+ Qc7 Kc2 c3 Q8a7 Ng4 Bd2 Rb3 Rc1 a1Q Be1 Nf2 Bf3 g2 e5+ Kd7 d6 g1Q d5 Nd8 Bh1 Qgg6 Be4 Qa5 Nfg2 Bf7 Qab7 Qe6 Q7a7 Ke8 d7+ Ke7 Qd4 Rg8 Qdb6 Qcc5 Qbc7 Rg6 Qcb6 Bg8 d6+ Kf7 Ra1 Be7 Ra2 Bg5 Rb2 Bf4 Kc1 Qec4 e6+ Kf6 e7 Nf7 d8N Ke5 e8Q+ Kd4 d7 Nh1 Re2 Rb1+ Kc2 Bb8 Bd2 Rf4 Bc1 Nf2 Qe7 Rd6 Bd2 Rb5 Be1 Qd5 Nf1 Kc4 Kc1 Kb3 Ne6 Qcc4 d8N Qe5 Nc6 Nd8 Nc7 Bd5 Bb1 Be4 Nfe3 Qce6 Ncd5 Rb4 Bc2+ Ka2 Qec7 Rb3 Ncb4+ Ka1 Bb1 Bd3 Rb2 Bb5 Be4 Bd3 Rd2 Bb1 Rc2
KBr1BNQ1/4r1qQ/Bbk1B2p/b3r1R1/2B1b3/1p2q2n/1rn3P1/3N2RQ b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 b5 a4 f3 d4 h6 g6 f6 a5 f2 d6 c4 Kd5 b3 e4 f5 g7 c3 e5 b2 a6 f4 a7 f3 Bf4 b4 Nh3 b3 Ra5 c2 Rg1 c1B Bc4 f1Q Ng5 f2 Ne6 Qe8 Nc3 b1R Qe1 Be3 Nd1 Be7 Rb5 Rh7 Nf8+ Kd8 d7 Kc7 Bh2 Na6 e6+ Bd6 e7 Rb2 Be5 Bd2 Qe4 Ba5 Bg3 Qg6 e8B Qe2 Qe7 Rb8 a8B f1R Bb7 Qe3 Qh4 Qg4 Qh1 Re1 Rc5+ Kb6 d8Q+ Bc7 Qe7 Bf5 Bc8 Ra8 Bh2 Bd8 Bb8 Nb4+ Kd6 Nf6 g8B Ree2 d5 Nc2 B8a6 Nh5 Be6 Qg7 Kd7 Bc7 Kc8 Nf4 d6 Be4 d7 Nh3 Rg5 Kc6 Qf7 Bcb6 Qg6 Rh8 Qh7 Ra7 d8Q+ Rd7 Be5 Re1 Kb8 Rg8 Ka8 Rh8 Bg6 Rd5 Bb8 Re5 Nd7 Re8 Bgf7 Re7 Qdg8 Rf1 Be8 Rf8 B8f7 Rd8 Be8 Rc8 Nf8+
NNr4Q/5b2/2BQ2p1/4R1KN/1nRp1N2/b1bBNR2/1q1n1qP1/b1r1qk2 b - - 0 1 illegal: No possible last move
3q1rBr/1Q1NRnK1/R1B1rP2/r3b3/1qB2N2/1B2p1B1/1Nn1b1p1/k1Q3q1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 a4 e5 f4 b5 c4 g3 h4 g2 c6 g4 a5 d6 c5 g3 c7 b3 h5 b2 a6 b4 h6 b3 a7 Qe8 c6 Qe6 h7 Nh6 Ne2 g1Q Qd2 g2 Nbc3 b1R Ra6 b2 Nd1 Qd7 Rh2 Bb7 c8B Qd8 Be6 Nf7 Bb3 Bg7 Rh4 Bc8 c7 Nc6 Kd5 Rf8 h8Q e4 Qh7 Ra1 Rh1 b1Q Nb2 Rb8 a8B Nd4 Bc6 Nc2 Rh2 Bb7 c8B e3 Be6 Ra5+ Ke4 Nh6 Bg8 Bh8 Qd7 Nf7 Rh7 Bc8 Qb7 d5+ Kd3 d4 Ke4 d3 Rg7 Nh6 Rc7 Nf7 Re7 Kg7 f6+ Kg6 Bca4 Bg4 f5+ Kg5 Nf4 Be2 Bc6 Kg4 Qd1 d2 Qe1 d1R Bd2 Rc8 Bc3 Rd7 Be5 Rd6 Qc3 Re6 Qd2 Bd1 Bd3 Be2 Bdc4 Kg3 Rd7 Kf2 Re7 Nh6 f7 Qbe1 Qd5 Qb4 Qd3 Ke1 Qd5 Re8 f8N Nf7 Nd7 Rf8 Qd3 Rh6 Bd6 Be5 f6 Rh8 Kf5 Rb8 Qe4 Kd2 Kg6 Kc1 Qd5 Kb1 Kg7 Ka1 Qd2 Re8 Qa8 Rb6 Qb7 Rf8 Nfd3 Bd4 Bg3 Bc3 Nf4 Be5 B6b5 Rd6 Bc6 Re6 Qc1+
kn1rbb2/4B1Q1/1BBrPB2/7R/Kn1qNrRN/2qQQB1p/5p2/2q4q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 g4 c5 e4 Kc7 d6+ Kb7 d7 c4+ Ka4 c3 b4 f3 b6 h3 b5 f2 g5 h4 e5 c2 d5 f4 g6 h2 d6 f3 g7 Nf6 g8B Ra6 Be2 f1Q Be3 c1R Qd3 f2 Nc3 Bh6 Ne4 Rc2 Nf3 Ra7 Bd5+ Rc6 e6 Qh3 Rag1 Rf8 Rg4 Ra8 Bd4 Qc7 d8B Bd7 Be7 Be8 d7 Qf4 d8Q Qc1 Qe3 Rf7 Qd6 Bf8 Qda3 Qg3 Qad3 Qe5 Ba1 Qec3 Bd1 Nbd7 Be2 Rd8 Bb2 Kb8 b7 Rd6 Bc6 Nd5 Bd1 Rf4 Ba1 Qc5 Baf6 Nb4 Be2 Q5c3 Bd1 Kc7 b8B+ Kc8 Ba7 Nb8 b6 h3 b7+ Kc7 Rhg1 h1Q Nh4 Qd4 Bf3 Qcc3 Kb5 a4 Rg5 a3 Ka4 a2 R1g4 Qcc1 Rh5 a1Q+ Kb5 Qac3 Ka4 Nd7 Bb6+ Kb8 Qb5 Qcc4 Qg5 Qcc5 Qg7 Q5c3 Ba5 Ka7 b8Q+ Ka6 Qb5+ Ka7 Qbd3 Nb8 Bb5 Kb7 Bb6 Ka8 Bc6+
1q1RrNnQ/2N1Qr1B/3RPQ2/1k2pQ2/1p1b1r1n/1b1K1n2/2R1r3/2q3BQ b - - 0 1 illegal: No proof kernel
2b4B/1bk2Nrr/1nq1P2R/3p3B/1bQ3p1/6RN/KnB4B/1n1bRBqQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 f5 h4 g5 c4 a5 Kc2 d5 Kb3 Kd7 e4 f4 e6+ Kc7 e7 d3 e8B d2 h5 a4+ Ka2 f3 b4 f2 b6+ Kd6 e5+ Ke6 b7 g3 h6 a3 h7 g2 c5 g4 c6 Qb6 b5 Ra5 c7 Ne7 Nc3 Ng6 Ne4 Qc6 b6 Nf4 Bh5 Kd7 Ng5 Bb4 Nf7 Nd3 Nh3 g1Q Qa4 d1B Bb2 Rg8 h8Q Rg7 Qc2 Ra4 Qc4 Ra7 Bd4 Nb2 Rb1 Na6 b8R Nc5 b7 Nca4 Ra8 Rh7 b8B Nb6 Rc1 Bb7 Rc3 Bc8 Rg3 Rb7 Ra6 Rg7 Bd3 f1B Bc2 Bfe2 Rh2 Bd3 Re2 Ra7 Re1 Rh7 Kb3 a2 Bc3 a1N+ Ka2 Bf5 Bd4 Bb7 c8B+ Ke7 Bd7 Nb3 Be8 Bfc8 Bc7 Qc5 Bb5 Nd2 Bc3 Nb1 Bd4 N6a4 Rh6 Qc6 e6 Nb6+ Ba6 Rg7 Qh7 Ke8 Qe4 Ke7 Qh1 Rh7 Bh8 Rg7 Bf4 Rh7 Nd6 Kd8 Bfe5 Kc7 Nf7+ Bd6 Rb3 Rg7 Bh2 Rh7 Rg3 Bb4 Nf2 Rg7 Nh3 Rg6 Nf4 Ba8 Qce4 Kb8 Nd6 Rh7 Nf7 Kc7 Nh3 Rgg7 Bf1 Bab7 Qc4
3B2q1/k1N1r1bR/N2bpQ2/q1R5/B1pbPn1Q/3R3B/3r2q1/nBK1B2q b - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 d5 g4 b5 axb5 dxc4 g5 Nc6 h3 Bg4 hxg4 Nb8 d4 Kd7 Kd2 Kc8 e4 Kb7 b4 h5 d5 c5 g6 a5 g7 f5 g5 c3+ Kc2 f3 d6 h4 b6 a4 d7 a3 b5 h3 g6 f4 Ne2 h2 Nd2 a2 Bh3 f2 Qf1 f3 Nd4 Rh7 N2b3 Na6 Bd2 Nb4+ Kc1 c2 Ne6 Nf6 g8B Nh5 g7 Nf4 Nc7 Qe8 Bc3 Rd8 Be1 Qg6 Rb1 a1B Bc4 Kb8 g8B Bd4 b7 Bfg7 Bd3 Ka7 b8R c4 Bd5 e6 Bc6 Qh5 Rc8 Qe8 Nc5 Qg8 Qg2 f1Q Qg5 f2 Qh4 Qe2 N5a6 f1Q Rb3 Qfg2 Ra3 Qh5 Rc3 Re8 d8B Re7 Bd7 Qc5 Be8 Rh5 Qf6 Rd5 b6+ Kb7 Ba4 Qa5 Nb5 Rdd7 Rc5 Rd5 Nbc7 Rdd7 Kb2 c1B+ Kb1 Bd2 Ra3 B2c3 Kc1 Nc2 Qh4 Na1 Bb1 Bb4 Rd3 Qf2 Ne8 Ka8 b7+ Ka7 Nec7 Qg2 Rf1 Ng6 Rf7 h1Q Qf6 Bh8 Rh7 Bg7 Re5 Bd6 Rf5 Rf7 Rc5 Rde7 Qh4 Rf2 Qf6 Rd2 Qh4 Kb6 Qf6 Nf4 Qh4 Qb5 b8Q+ Ka5 Qa8 Kb6 Qd5 Qa5 Qdg5 Ka7 Qf6
6bB/4nr1R/2rP2bR/2NqN3/1n4KQ/Qpk2Bbp/6qr/2BBbR1B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 d4 h5 a4 b5 g4 e5 g5 c5 f6 h3 g6 b3 g7 h2 a5 b4 a6 h4 f7 b2 a7 c4 Nc3 b1B Na4 b3 Be2 c3 Qe1 c2 Bd1 Bh3 Nc5 Qd7 Ra6+ Ke7 d6+ Kf6 d5 Ne7 g8B e4+ Kf4 e3 Nf3 e2 Ne5 Qc6 d7 Be6 d8B h3 Rf1 h1Q f3 Bg7 f8R+ Bf7 Ba5 Rh7 Bc3 Qg2 Rc8 Qd6 Rc7 Nbc6 Rb7 Rd8 a8B Nb4 Qg3 e1B Kg4 Rc8 f4 Rc6 f5 Bh6 Bd4 Bf4 Bdb2 Be6 Bf7 Qd7 Bh5 Bg8 Ba1 Rf7 Rba7 Qh1 Qh4+ Bg5 Bf4 Nc8 Nb7 Rh7 Nf3+ Bc3 Ra5 Rc4 Bf7 c1R d6 Rc2 Bd5 Qe6 Be4 Rhc7 Bc1 Rh2 Re5 Be1 Rb5+ Kf7 Bh8 Bf4 Rba5 Qe5 f6 Ke6 f7 Bfg3 f8Q R4c5 Bc6 Bg6 Qg7 Qe2 Qa1 Qb2 Qa3 Rc3 Bb5 Kd5 Bc6+ Kc4 Rh5 Kd3 Rh6 Rc5 Ne5+ Kc3 Na5 Rg7 Raf7 Ne7 Nb7 Qd2 Bd5 Qg1 Bh1 Qgg2 Nd3 Rc7 Nbc5 Rc8 Baf3 Rc6 Ne5 Qd5 Rf4 Rf7 Rh7 Be4 Rf6 Bc2 Rfh6 Be4 Qa5 Bg6 Qa3
R1N3r1/1QB3q1/1r1P3n/2Knb1QB/3Rb1Bp/n1Bqq3/2BR3p/1Nn4k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 a5 d6 h5 d7 f5 g5 c5 b6 f3 Ke3 c4 b7 a4 g6 h3 g7 f2 b5 h2 b6 c3 Bb2 a3 Ne2 h4 Ng3 a2 Bh3 f1Q Qc1 Qc7 d8R Nd7 b8Q Ra6 b7 Bd6 Bg4 Qh3 Rd1 Nh6 g8B Nf6 Bb3 Rb6 Bc2 Qg7 d3 Bd7 Rd2 Rg8 Qc7 Bc6 b8B Bd5 Qb7 Bc6 Bc7 f4+ Kf2 f3 Ke3 Bd5 Nf5 Bc6 Ne7 f2+ Bf3 f1Q Nc8 Qe6 Bh5 Qff5 Qg1 Qb3 Qg5 Qa3 Bg4 Nd5+ Ke2 Kd4 e5 Qc5 e6 Be5 e7 Qa3 e8B Qf2+ Kd1 Qe3 Beh5 Qb3 Ba3 Qc4 Bb4 Qa6 Ba4 c2+ Kc1 Qc4 Kb2 c1N Ka3 Qa6 Ne7 Qb5 Bc2 Qc4 Ra8 Qb5 Nc8 Qc4 Nc3 Qb5 Rb1 a1N Rb3 Qc4 Nb1 Qa6+ Ba5 Qb5 Rb4+ Qc4 Bcd1 Nc2+ Kb2 Nf4 Bb8 Be4 Bc7 Na3 Ba4 Qf2 Bc2 Ke3+ d4 Qcf1 Kc3 Q2e2 Rc4 Kf2 Ra4 Kg1 Rc4 Rg6 Kb4 Rb6+ Kc5 Qe3 Bc3 Kh1 Rb4 Qfe2 Rba4 Q3d3 d5 Qde3+ Rad4 Q2d3 d6 Nd5 Bb3 Nf6 Ba4 Nd5 Bc2
q1r1n1qN/2Q2r1N/1k1P3R/ppq1b3/RN1n2Nn/1b1KBB2/1qQ2B2/7N b - - 0 1 illegal: No proof kernel
2Q1B1Bq/1bqnb3/3P1B1p/1k1Rbr2/R7/2nB3b/1KpR1n2/N1rBN2Q b - - 0 1 illegal: No possible last move
2kN1n2/4B3/qb1p1r1R/1nr3qb/1qR1Qq2/2R2N1b/1p2PRB1/BK1Q1R2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 f5 c4 g5 Kc2 b5 a4 g4 h4 d3+ Kb2 f4 h6 b3 h5 d2 e6 f3 h7 b4 h6 f2 e7 g3 c5 g2 c6 Qc7 a5 Ra6 Qe1 d1Q Nd2 Nf6 Ra3 Ne4 Nh3 g1Q Kb1 b2 Nf3 Nd6 Nhg5 Qa4 Qd1 Nb5 Nf7 Qf4 c7 Rf6 a6 Qgg5 a7 Qa6 Bg2 f1B a8R d6 Ra7 Kd7 Nd8 Bg7 Rc3 Bb7 e8Q+ Kc8 Qe4 Nd7 Rh2 Nf8 Rh1 Rg8 h8R Bd5 h7 Bf7 Bd2 Bh5 Be1 Bh6 Bh4 Rgg6 Rh2 Rf5 Rb7 Rgf6 Rb6 Bg7 Rbc6 Re5 R6c4 Rc5 Rh1 Rg6 Rg1 Bd4 Rh1 Rf6 Rh2 Kd7 c8R Bf2 Rb8 Bd4 Rb7+ Kc8 Rf7 Bf2 Bh1 Bh3 Bg2 Rc6 Rh1 Bb6 Rf1 Rc7 Rg8 Rc6 h8B Rc5 Rg6 Qb7 Rh6 Qa6 Kc2 b3+ Kd3 b1Q+ Rc2 Rg6 Ng1 Qfc1 R7f2 Qf6 Nf3 Qcf4 Bg7 Q6f5 Be7 Q5g5 Ba1 Qb2 R2c3 Rf6 Nb7 Qba3 Nd8 b2 Kc2 Qb4 Kb1
5rq1/1K2N1rQ/1BPrb2b/p3n1R1/r1B4q/1bk1R2p/1RNRQn2/2BR4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 a5 Kd5 h5 c4 e5 g4 e4 f4 d3 b4 d6 b6 h3 b5 h2 c5 h4 g5+ Ke7 f6+ Kf7 g6+ Ke8 f5 Kd7 b7 h3 b6 d2 f7 e3 g7 e2 f6 e1Q Na3 Qee8 Bc4 Nc6 b8Q Rh7 b7 Nh6 g8R Ng4 Ne2 Rg7 Nc2 Nf2 Qa7 Ne5 Re1 h1R Nf4 Qde7 Qh5 d1B Qe2 Kc7 c6 Be6+ Kd4 d5 b8R+ Kd6 Rb2 Rb8 Ng6 Rb4 Ra3 Rf1 Re3 Q7d8 Ne7 Ra4 Na3 Bb3 Nc2 Rg3 Rg6 Bh6 Rg5 Qg8 f8R Rg2 f7 Rg3 Rf5 Rgg1 Rd1 Rg7 Ng6 Qg5 Ne7 Qf6 Rg5 Qf4+ Kc3 Qh4 Qb7 Kc5 Rd8 Qf4 f8B d4+ Kd2 d3 Kc3 d2 Qd7 Qh4 Qdd3 Rf7 Qh7 Nd3 Rd7 R1f5 Bg7 Nf2 Bf6 Rg7 Rd4 Nf7 Be5 Rf6 Bc7+ Ne5 Rdd3 Rf8 Bd8 Bd5 Bb6+ Kd6 Ba6 Ke6 Rf1 d1R Bb5 Rd2 Rd1 Bdc4 Rd5 Rd4 Ba6 Re4 R5d2 Rd4 Bb5 Rd6 Bc7 Bd5 Bc4 Qg3 Kd4 Qg4+ Kc5 Qh4 Bd3 Bdc4 Kb6 Bd5 Ng6 Bdc4 Ka7 Kd5 Ne7+ Kc5 Kb7 Be6 Nb4 Kd4 Nc2+ Kc3 Bb6 Rdd8 Bc4+ Rd3 Re4 Rd6 Re3+
2K2R2/5B2/Brp2b1n/1Q1qkNBN/1n1Q2r1/4nprN/N3P2n/1b1N2Rq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 h5 b4 a5 g4 f6 d4 c6 g5 a4 g6 f3 b6 h3 b7 a3 g7 h4 b5 h2 b6 a2 Nh3 f2 Nc3 Be6 Bg5 Na6 b8Q+ Qc7 b7 Rh7 Rg1 Nh6 g8B h1N Bf7 Ke7 d6+ Kd7 d5 f5+ Ke5 f4 Qd4 Ng3 Nd1 Qd8 Bg2 f1N Be4 f3 Bd3 Nb4 Ba6 Ngf5 Rb1 a1R Rb3 Qc8 Kf6 Kd8 d7 N5e3 Qbe5 Rc1 b8N Nh2 Qf5 Kc7 d8N Ra7 Nb7 Bg7+ Ke7 Rc4 Nd6 Rb7 Qfd3 Bd7 Nf5 Qg8 Ra3 Rb6 Ra4 Rc5 Qb5 Rc4 Ra5 Be8 Ke6 Bf6 d6+ Kd8 d7 Kc7 d8N Rg7 Ng3 Rg6 Nb7 Rg7 Nd6 Rg6 Qa1 Rg4 Nh5 Rg7 Nf5 Rg3 Nhf2 h3 Qd4 Rg4 Nd7 Rg6 Nc5 Rg7 Nce4 Rg3 Bh4 R7g4 Nec3 Qg5 Ra1 Qg8 Na2 Qg5 Bg8 Bg6 Bf7 Bh7 Nfg7 Bb1 Nf5 Qg8 Bg5 Nhf1 Bb7 h2 Nh3 h1Q Bc8 Nh2 Ba6 Bc2 Rc1 Bb1 Rc5 Qd8 Rd5 Bg7 Re5 Qd5+ Ke7 Bh8 Re6 Be5 Rd6 Bh8 Rd8 Bg7 Rf8 Bh8 Ke8 Bf6 Ne7 Kd6 Kd8 Rg2 Kc8 R2g3 Qd2 Ke5 Nf5 Re4 Qdd3 Reg4 Qd4+
3Nb3/2Rr1nR1/K1p5/np3b2/Nk2n3/1PBr2Q1/q1RBRnrQ/1R1B1q2 b - - 0 1 illegal: No possible last move, all moves rejected
N2qQq2/4N1RR/2p2rp1/1kBBq3/2q1B3/1B1Q1PBr/r1nK1n2/3b1Qb1 b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 a4 Kd7 d4 b5 h4 e5 d6 Kc6 d5+ Kc5 f3 e3 Nd2 Qe8 h5 g6 a6 e4 h6 g3 d7 e2 d8Q g2 d6 b4 d7 b3 h7 b2 a5 b1Q a7 Qb6 a6 Nc6 Ba3+ Nb4 Nc4 Nf6 Nh3 g1Q Nf4 Qg4 Kd2 e1R Nd5 Bb7 Bd3 Bc6 Bc2 Ba4 Rh3 Qb8 Ncb6 Be7 Ra2 Qf8 Qe8 Qc8 d8Q e3+ Kc1 e2 Kd2 Qe4 Rh6 Qc4 Ra1 Rb8 a8B Ng4 a7 Bd6 Bb7 Nf2 a8B Bh2 Bc6 Bb3 Bab7 Bg1 Na8 Ba4 Qdd7 Qd8 Rh4 Rg8 h8B Bb3 Bg7 Rh8 Be5 Rf1 Bg3 e1Q+ Kc1 Qee4 Kd2 Qe5 Qf5 Rh7 Qd3 Rh6 Ra2 Rh5 Q1e2 Ra1 Qf1 Rh7 Rb2 Ra2 Rh1 Rd7 Rh8 Rh7 Rb1 Rh3 Rh7 Qed4 Re1 Ba4 Ree7 Qe5 Reg7 Bb3 Bc8 Rb6 Bf5 Ba4 Bb7 Rf6 Ne7 Bb3 Bd5 c6 Bfe4 Kb5 Ke3 Na6 Bc5 Nb4 Bb1 Bd1 Bc2 Qh8 Bb3 Nc2+ Kd2 Qg8 Qde2 Qf8 Qd3
1K2n2N/1B2Q2b/QrpP1B2/2p1bB1b/r1nBR3/q1N1B3/Q1q2r1b/5kR1 b - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 c4 gxh4 a4 d6 c5 dxc5 axb5 Bh6 Qg4 Bg7 Qd1 Bf8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 a5 g4 h5 f4+ Kh6 b4 e6 d4 c6 g5+ Kh7 b6 h3 g6+ Kh6 b5 a4 d5 h2 g7 a3 f6 a2 f7 h4 b7 h3 b6 Nf6 g8B Ra4 Nc3 Bg7 f8Q Nbd7+ Kd6 e5 b8Q e4 f5+ e3 b7 Kg5 Qb3 Kf4 Qe7 Kg3 Nge2+ Kf2 Rg1 h1B Qa7 h2 b8B Bf3 Be6 h1R Nf4 e2 Qa6 e1B Ng6 Rf8 Nh8 Bh5 Bb5 Qe8 Kc7 Ne5 d6 Nc4 Be3+ Kf3 Rc1 a1Q Qa2 Bg3 Rce1 Bh2 Ba7 Qc1 Kb8 Qg6 Bb6 Ne8 f6 Qgc2 f7 Bge5 Bf5 Qa3 Bd8 Be6 Bd4 Bd5 Re4 Be6 Bh3 Bf5 Be3 Bh7 Bf5 Rg8 f8B Rg2 Bg7 Rf2 Rg6 Rb1 Rg1 Bef4 Bgd4 Be5 Qb6 Rb3 Ba6 Rb2 Bb7 Rb3 Qa6 Rb6 Rd1 Kg2 Qf7 Rb3 Bf6 Rb1 Qe7 Rb6 Rd2 Kf1 Re2 Rf3 Rg2 Rf2 Rg1+
1b6/3Q3R/1pN3r1/pq3b1r/1Qn3Qn/Q2B4/P2nRQb1/BkbBKN1q b - - 0 1 illegal: No possible last move
kQqBr3/4Q3/P3Nb2/1B1Kn1q1/3n3p/B2qN1qR/2p2R1r/1bBr2BQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 Kc7 d4 b5 g4 Kb7 a4 h5 g5 c4 f6 c3 f7 b3 d6 b4 a5 b2 f5 h3 d5 b3 f6 h2 g6 Be7 f8B Nc6 f7 Nd4 d7 Nh6 g7 Ng4 g8Q Bf6 Nd2 b1R d6 b2 Kd5 e4 Nc4 e3 Nf3 e2 Ra2 e1Q Ne3 Ne5 Ng5 Qg3 Bb5 Qe8 d8B Bf5 Bc7 Qc8 d7 Rb8 d8B Ka8 a6 h4 Rf1 h1Q+ Rf3 Qhg2 Ba3 Qd2 Qh7 Re8 f8Q Ra1 Qfg8 b1Q Qh1 Qbd3 Ne6 Rb6 Rc2 Ra2 Qe7 Rd6+ Kc5 Qdg2 Rcf2 Qg5 Qh8 Q2g3 Qhf8 Rd2 Qg8 Rd1 Qh8 Rc6+ Kd5 Rc4 Bb6 Ra4 Bac5 Ra2 B5a3 Re2 Rf1 Rh2 R1f2 Qd2 Bbc5 Bb1 Ba7 c2 Bab6 Q3f4 Rh3 Qfg3 Ng4 Rg8 Re2 Qdd3 Bdc7 Qf8 Rd2 Nb3+ Bd4 Qdf5 Bg1 Nd4 Rf2 Qfd3 Ne3 Qb8 Bb6 Rc8 Qhd8 Qc7 Qdd6 Re8 Ba5 Qd7 Bd8 Qc8 Qb8+
2RrB1kn/n7/PK1R1N2/1pB1qBB1/1B3R1q/NQ2n2b/5p1q/1qr1Q1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 c5 e4 f5 d4 Kf7 a4 g5 h4 b5 d6 f3 Ke3 g4 d7 b3 d5 c4 Kd4 f2 e5 c3 e6+ Kg7 e7 c2 Kc5 g3 a5 f4 d6 b2 e8B f3 h6+ Kh7 h5 g2 a6 Bg7 Nh3 g1N Nf4 Bc3 Bd2 c1Q Rh4 Ra7 Qb3 Nh3 Na3 b1Q Nd5 Ne7 Bd3+ Nf5 Rf4 Rc7+ Kb6 Qh4 d8Q f1Q d7 Qe2 Qe7+ Kg8 d8B Ne3 Bf5 Nc6 Qeb4 f2 Bg5 Be5 Qe4 Qh1 Bb4 Na7 h7+ Kg7 Ra2 Qh2 Rd2 Rc1 Rd3 Rf8 h8B+ Kg8 h6 Bd6 Bd4 Qe1 Rf3 Nf4 Bdc5 Ng6 Rf4 Nh8 Qh1 Qc3 Qe1 Qe5 h7+ Kg7 Beg6 Rd8 Be8 Be6 Bfg6 Bh3 Bf5 Ng6 h8R Bb8 Rh7+ Kg8 Rc7 Nh8 Rc8 Q2g3 Rfd4 Qee4 Nc3+ Qd5 Rd1 Qg1 Re4 Bh2 Rf4 Qg2 Rd2 Bg1 Rd3 Qe6+ Rd6 Qh2 Nd5 Qe5 Nf6+
1B1r3b/Q1qr3n/P3p1p1/nKBBkB2/3bb3/R2RNQq1/B1N3r1/2bQ4 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 h5 bxa5 c5 dxc5 hxg4 Ke2 Kf7 f4 Ke6 h4 b5 c4 d5 a4 b4 h5 d4 h6 g6 c6 e3 Kd3 e2 a6 e1B c7 b3 a5 b2 h7 g3 a7 g2 c5 Nd7 Kc4 d3 c6 d2 f5+ Ke5 a6 Ndf6 Kb5 Kd4 Ra3 Nh5 f6 Ng3 f7 Nf6 Ne2+ Ke5 Rh3 g1B Nec3 Nge4 Nd5 Bb7 c8Q Bd4 c7 Bh6 f8Q Nc5 Rhd3 Nb3 Ne3 Na5 Qd7 Be4 c8B Qc7 Qf7 Rd8 h8B Bg5 Qh3 Rd7 Qhf3 Bg3 Bh3 e6 Bf5 B3h4 Bb7 Rad8 a8B Bh6 Bd5 Bg7 Bg4 Bg5 Bf5 Nh7 Ba2 Bf4 B8d5 Bh6 Qdh1 d1Q Qe7 Qe2 Qd1 Qf2 Qc5 Qg2 Qa7 Qg3 Bd2 Bf4 Bb4 Bg5 Bc5 Bf4 Nc2 Bc1 Nd2 Bf6 Nf1 b1R+ Bdb3 Rb2 Nfe3 Qg2 Bg7 Qg3 Bgf8 Bh8 Bfd6+ Kf6 Na1 Rg2 Nac2 Qc8 Bb8 Qcc7 Bc4 Ke5 Bd5
bBQNK2n/4RN2/pB1bB2q/1B3Brk/3r1QQp/rnR1Pq2/1n6/4r3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 Kf7 g4 Kg6 b4 d5 c4 h5 c5 h4 b6 d3 b7 a6 c6 d4 c7 d2 b5 d3 b6 Bd7 c8B Bd6 Ra3 Ne7 Nc3 Rh6 Nh3 Nd5 Nb5 Rh5 Na7 Qc7 Rc3 Be6 Nc6 Ne7 Nd8 Nd7 b8Q Nc5 b7 Qb6 Qc7 Bg8 b8B Nb3 Qc2 d1Q Be3 d2 Rg1 Qa5 Bb6 Bd5+ Qe4 Qc1 e3 d1N Be6 Nb2 Qc8 Qd1+ Be2 Bb7 Rf1 Qdd5 Bb5 Ra7 Rfc1 Ba8 Rc7 Qb4 R1c3 Qbd4 Rb7 Qg7 Rd7 Qh6 Rdc7 Kg7 g6 Rg5 Rb7 Kf6 g7 Ng6 g8Q Nh8 Re7 Rc7 Qf8+ Kg6 Bed7 Rc4 Be6 Rh5 Ng5 Rd4 Ngf7 Qc6 g5 Qd5 Kg2 f3+ Kh3 f2 Qg4 f1R Bed7 f4 Be6 f3 Bed7 f2 Be6 Kh7 Bf5+ Ng6 Bfd7 Qg7 Qf3 Rg4 Nh8 Rd4 Q8f4 Nd1 Kg4 Re1 Nhf7 Qh6 Qe2 Qb7 Kf5 Nh8 Qeg4 Qh1 Qc6 Qf3 Qc8 Bc5 Ke5 Kg6 Ke6 Bd6 Rc2 Kg7+ g6 Rg5 Rc7 f1R Rc3 Re2 Bd3 Ref2 B7b5 Ra2 Kd7 Ra3 Ke8 Re1 Be4 Kg8 g7 Nb2 Bec6 Kh7 Bd7 Kg6 Be6 Bb4 g8B Bd6 Bh7+ Kg7 Bhf5 Kf6 Qg1 Kg7 Bh3 Kg6 Bhf5+ Kh5 Qgg4+
1qRN3r/2n1R1K1/pk1q4/1B1NQ1B1/1qR1b1P1/1N3Qnb/5bp1/1N1rN1q1 b - - 0 1 illegal: No proof kernel
1n5B/Rr4N1/p1kq1nbQ/2b1bQ2/rPQ1NqbK/Q4r2/3Qp3/R2B3R b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 f4 e5 Kf2 c5 b4 h5 d4 c4 b6 a6 b7 c3 f5 c2 f6 h3 Kg3 e3 d6 e4 g5 h2 g6 e2 d5 e1R g7 e3 f7 Rh7 Nh3 Nf6 g8Q Qc7 Qdg4+ Kd8 Qf5 Qe7 d7 Kc7 d8R Qd6+ Nf4 h4+ Kh3 Rg7 Bb2 c1B Nc3 Rh7 Bc4 e2 Nh5 Bf4 Ne4 Be5 Bb3 Be7 f8Q Kb6 Rg1 h1B Bd1 Bf3 Ng7 Bh5 Bc3 Bg6 Rd7 Ra7 Qge6 Rh5 Qh8 Rf1 Qh6 Bf8 Rh1 Rf4 Kh2 h3 Kg3 h2 Bb2 Rg5+ Kh3 Rf3+ Kh4 Rgg3 Rc7 Ra3 Bc3 Rf3 Qg8 Qc6 d6 Ra4 d7 Bc5 d8Q Qd6 Qc4 Be6 Rd7+ Kc6 Rf7 Nfd7 Qdg5 Nf6 Qd2 Bc8 Qff4 Bg4 Qf5 Nbd7 b8Q Rb7 Qd8 Nb8 Qa5 Bh3 Rf1 h1Q Bd4 Qg2 Rh1 Bg4 Rd7 Qg1 Re7 Qe3 Bc3 Ra2 Qa3 Qf4 Rf7 Rb6 Ra7 Rb7 Qab2 Ra5 Qa3 Ra4 Qab2 Nh7 Ne6 Bh8 Qa3 Bg7 Bd4 Bh8 Bg1 Bc3 Bd4 Bb2 Bf6 Be5 Bh8 Nf6 Ng7
2b4R/1qr1RR2/p2n4/N2B1Q2/1p2r2b/1KR1P1r1/Q1nQkbqB/2RrN3 b - - 0 1 illegal: No proof kernel
R5q1/1RqNqk1n/pN5r/K3PQ1R/1R3Q1b/1bR3rB/2npb2B/B1b5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 b4 f5 c4 d5 h4 d3 Kc3 a6 e4 g4 h6 f3 h7 d2 h5 g3 b6 g2 b7 f2 c5 f4 b5 f3 Kb4 d4 b6 d3 h6 Be7 Ne2 g1B Ka5 Bh2 c6 Bf4 c7 Nd7 b8Q Bf6 b7 Nb6 Rh5 Qe7 Ng3 Kf8 Qc2 d1B Nc3 Be2 Na4 Bh4 Rb1 Kf7 Rb4 Nf6 Bh3 Be6 c8R f1Q Rc3 Nbd5 Nb6 f2 Qc7 Qd1 b8R f1Q Rb7 Qg2 Qd6 Bd2 Qf4 Rag8 Bb2 Rg7 Ba1 Bc1 Qb1 d2 Qd3 Rf8 h8B Ne3 h7 Qc2 Qb5 Rg6 Qbf5 Bb3 Bg7 Qg1 h8R Rg8 e5 Rh6 Ne4 Qg3 Bf8 Rg4 Bg7 Qg1 Ra8 Rg3 Bf8 Qc7 Bc5 Qe7 Rd3 Qc4 Rc3 Nc2 Bf2 Qg2 Bg1 Qc8 Bh2 Qg8 Nc5 Qc6 Ncd7 Qc7 Rc8 Kg7 Ra8 Nh7 Nf6 Kf7 Nd7+
2b2K1B/1Nk1N2P/2q2bQR/n4bBB/3pr2r/B3B1qR/2npQn2/b3Q3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 a5 b4 g5 h4 d5 c4 Kd7 e4 d3 c5 d2 c6+ Kd6 b6 d4 c7 a4 b5 a3 b7 a2 h6 Ne7 e5+ Kd7 h5 Ra4 e6+ Kd6 b6 Nd7 b8B Ba6 c8Q+ Qc7 h7 Bc4 b7 Ra5 h6 Bb3 Ba3+ Nc5 Ne2 Bg7 Qe1 Bc2 Ng3 Bf6 Rh3 Nc6 e7 Ra8 e8Q Na5 Q8e2 g4+ Kg2 Ra6 Nc3 f3+ Kf2 f4 Nb5+ Kc6 Qg8 Bf5 Nd6 Bc8 Rb1 a1B Qg6 Qd7 Ngf5 g3+ Kg1 f2+ Kg2 Ra8 Kf3 g2 Kg4 g1Q+ Kh5 f3 Bc7 Qe8 b8B Nd3 Nb7 Qg3 Bf4 Ra6 Bg2 f1N Bg5 Nf2 Bbf4 Ne3 Ne7+ Kd7 Rb4 Nc2 Be3 Re6 Rb6 Kc7 Bh1 Re4 Rd6 Rg8 h8B Qc6 h7 Re8 Kh6 Rg4 Qh5 Rh4 Kg6 Bf5+ Kf7 Bc8 Qg6 Bf5 Ng8 Ree4 Re6 Nd3 Bg2 f2 Bf3 f1B Kf8 Nf2 Bh5 Bg2 Ne7 Bf3 Rd6 B3g4 Qf7 Bc8 Re6 Bf5 Qe8 Be5 Rh6 Bf6 Qg6
nb1N2Q1/r2Q1QKP/3B4/Rr1bpR2/1bq1N3/2Bp2Qk/2B2rnb/4qQ2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 h4 a5 f4 g3 b4 g2 c4 e6 c5 d6 h5 d3 h6 g4 h7 g3 c6 d2 b6 a4 c7 a3 b7 a2 b5 Ne7 b6 Nd5 Nf3 g1R Nc3 g2 Nd4 Qe8 Bb2 Qb5 Bd3 Na6 b8B Ra7 b7 Rf1 Bc2 g1B Nc6 Bh2 Nd8 Rf2 Qf1 d1Q Rg1 Qc5 Rg5 Ne3 Rh5 Bd7 c8Q Nc7 Rg5 Bb5 Qd7 Na8 Bc7 Qd2 b8Q Qe1 Rh5 Qc6+ Kd4 d5 Bd6 Bc4 Qb3 Be7 Ne4+ Kg7 Ke5 d4 f6+ Kg6 f7 d3 f8Q Ng2 Qb8 Bd5 Bc3 Qc4 Rf5 Rg8 Qfe8+ Kh6 Qf7 Rg5 Qg8 Kh5 Qbc7 Bf8 Kf6 Kh4 Qgf7 Rh5 Kg6 Be7 Kg7 Kg4 Rg5+ Kh4 f5 Kh3 f6 Bf8+ Kh8 Be7 Rf5 Bf8 Qg8 Rg5 f7 Be7 Bf4 Bb4 f8Q Rh5 Bd6 Rg5 Rd1 a1B Qff7 Rh5 Kg7 Bb2 Bf6 Bbe5 Ra1 Bef4 Ra5 Be5 Qcc8 Beg3 Bc3 Bf4 Bf8 Bb8 Bd6 Qd2 Qcc7 Qe1 Bde5 Bc6 Rf6 Bb7 Bg3 Rb5 Rf5 Bd5 Qf4 Qe3 Qg5 Qe1 Bd6 e5 Qg3+
2B5/3b2rp/Bk3KPb/n1b2B1q/N1RR1nqB/p2br3/1BQ1N2R/1Qr5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 d5 c4 Kd7 b4 Kc7 f4 a5 g4 e5 g6 a4 g5 a3 c5 d3 Kc3 e3 c6 e2 f5 e1R b6+ Kd6 b7 Kc7 b5 d2 g7 e4 Kd4 e3 Ke5 e2 g6 d4 f6 d3 f7 Bf5 Qc2 d1Q Rh2 d2 Bb2 Bc5 f8R Ra7 Nc3 Qd7 Rd8 Kb6 c7 Nf6 c8B Nd5 g8B Nf4 Rc1 Nc6+ Kf6 Na5 b8B Bd3 Be6 Re8 Bf5 Re3 Bd6 Rc7 Be7 Qd5 Rd7 Qg2 Rd4 Qg4 Bh3 Rf1 Ba6 e1B Nge2 Bf2 Bd8 Bf8 Bfc8 Bh6 Be7 Qh5 Bhf5 Rh1 Bd8 Qg1 Be7 d1B Bd8 Qgg4 Be7 Ra7 Bd8+ Kc5 b6 Rg7 b7 Kc6 b8Q Bg1 Qb1 Ba4 Qb3 Bab5 Be7 Kb6 Q3c2 Ba4 Rd1 Bd7 Rc4 Be4 Rd5 Bd3 Rdd4 Bf2 Bd6 Rc1 Be5 Ne6 Bg3 Nf4 Bh4 Re5 Rd5 Bc5 Rdd4 Re3 Na4+
3N2q1/Qr1nQP2/1r2b1k1/BR2Q1nr/Q3prB1/1nb2N1R/1p3K2/q1QR4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 c5 g4 e5 f4 b5 f6 h5 d6 h3 d7 h4 d5 b3 f5 c4 a5 b4 a6 h2 d6 c3 g5 c2 a7 h3 Nd2 b2 Ngf3 b1N Nd4 b3 Ra5 b2 Kf2 e4 Nc6 Rh5 Rb5 Bh6 g6+ Kf8 f7 Kg7 Nf3 Qe8 d8R Nd2 d7 Nb3 Bd2 c1Q Ba5 Qa1 Be2 Bd2 Qc1 Bc3 Bd1 Kf6 g7 Nh6 f8Q+ Nf7 Qc5 Ng5 g8Q Rh7 Qgd5 Qg8 Qcc4 Rh4 Be2 Rf4 Qa4 Kg7 f6+ Kg6 Rd1 h1R f7 h2 Qe5 Rg1 Rf8 h1R d8Q Be6 Qe7 Nd7 Nd8 Rb8 a8Q Rb7 Qa7 Rh5 Re8 Qg7 Rh8 Qg8 Bf1 Rgg4 Bh3 Rf6 Rh7 Rgf4 Rh8 Bg4 Rh7 Rfb6 Rh8 Bf5 Bg4 Be6 Rbd5 Rh1 Rh2 Qa2 Rb5 Qa1 Rg2 Rh4 Rh2 Rh5 Rh3
1NQ3kB/1qb2pNn/3p1q2/1PNr2Q1/1R1n1rB1/K1b2Q2/6b1/NR3rNr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 c4 a5 Kc2 g4 Kb3 d6 e4 f3 h4 d3 e5 a4+ Ka3 f2 b4 d2 h6 g3 h5 g2 c5 Qd7 c6 Be7 e6 Kf8 c7 Qc6 h7 Qb7 b6 Ra5 h6 Qe4 b7 Nd7 b8N Qf4 b5 Bb7 c8N Ndf6 Nb6 Bd8 Rh4 Bc7 Qf3 d1R Be2 f1R Nd2 Ne7 Nb3 Nf5 Bb2 Rd5 Rb1 Nd4 Na1 Qf5 Qd3 Rf4 Bg4 Ra6 Qf3 Qe5 Kb4 a3 Na4 a2 Ka3 Ba8 Bc3 Rc6 Bb2 Rc1 Nc5 Rf1 Bc3 Ne4 Bb2 Ng5 Bc3 Qf6 Bb2 Rg8 h8Q Bb7 Qh7 Rh8 Qf5 Nh7 e7+ Kg8 e8N Bc6 Ng7 Bb7 Nh3 g1Q Qg5 Qe3+ Bc3 Qe8 Ng1 Qc8 Rh2 Bc6 Rhb2 Qb7 Rb4 Nf5 Nab3 a1B Be5 Bc3 Na1 Rd3 Qe2 Bg2 Qf3 Rd5 Bd4 Qd8 Bf6 Nd4 Be5 Nf6 h7+ Kf8 R1b2 Be1 Rb1 Ba5 Nh5 Qde7 Na4 Qd8 Qf5 Bd2 Qc8 Bc7 Nc5 Bc3 Qh3 Rg8 Qf3 Rg5 h8Q+ Rg8 Qh7 Rh8 Qhf5 Kg8 Na4 Rh6 Nc5 Nh7 Bh8 Ne6 Ne2 Nd4 Ng7 Rh3 Qg5 Rhh1 Qcf5 Qe7 Ng1 Qf6 Qc8+
N2rqbq1/R2qp1bn/4RR1k/3Q2R1/1rR2N2/1Q2p1r1/1NK1P3/3BBq1n b - - 0 1 illegal: No proof kernel
Q3Q3/q2PB2N/1nb2q1n/2k1b3/nq2rrR1/2N2BRN/KRp2p2/2R1Rq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 g4 f5 e4 c5 b6 c4+ Ka3 c3 b4 h3 b7 h2 b5 h4 g5 h3 g6 c2 g7 a4 b6 f3 Bg2 f2 Nc3 f1Q Qf3 f4 Ka2 Nh6 g8N a3 Nf6 Bd7 Nh7 Bc6 Be3 Qf6 Rc1 Nd7 b8R Qe1 b7 Bg7 Rg8 Nb6 b8R Ra4 Bf2 Qf1 Bh4 Qa6 Re1 Qa7 Rb7 Nd7 Rb2 Nb6 Qg3 Rb4 Bf3 Rc4 Qg2 Ra4 Bg4 f3 Bg5 f2 Bf3 Qd8 Bh4 Be5 Rg4 Rf8 Bg5 Rf4 Be7+ Kd7 d6 Ke6 Bh4 Qf6 d7 Kd6 d5 Kc5 d8R Rb4 d6 Rd4 Kb3 a2 d7 a1Q Rdg8 Q1a5 Rg3 Rc4 R8g4 Ra4 Nge2 Rd4 Rhf1 h1Q Ng1 h2 Nh3 Qg1 Rc1 h1N Rfe1 Qf1 Bg5 Bb8 e5 Rde4 e6 Be5 Na2 Qd2 e7 Qdd6 e8Q Qdf8 Bh4 Q8e7 Rg5 Qed6 R3g4 Ng3 Nc3 Ne2 Rg3 Qdb8 R5g4 Qbb7 Nb1 Nc3 Qh1 Nca4 Ka2 Qba6 Nc3 Qab5 Bg5 Qb4 Qg2 Qd6 Be7 Re2 Bd8 Bb5 Ba8 Qf6 Qb7 Re3 Qb8 Re2 Bf3 Bc6 Qa8 Ree4 Be7+
2q1B1r1/b1Qpn1N1/3Bp1qr/qN2N3/2K1k2n/1N2R1n1/1NbqRQ1P/3B4 b - - 0 1 illegal: No possible last move, all moves rejected
7B/R1rp2R1/3P1rb1/2q2R1B/BQ1np2q/Nb3QB1/k3B3/bN2Knbr b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 f4 Kf7 g4 Ke6 c4 h5 d4 a5 c6 e3 c7 e2 b6 h3 b7 h4 c5 Kd5 f5 Kc4 c6 e5 f6 h2 g5 h3 g6 a4 f7 a3 d5 a2 g7 Nf6 g8Q Ra6 Bb2 Qe7 Qg4+ Ne4 Nf3 Qc5 Rg1 h1B Nd4 h2 Nc2 Kb3 Bh3 Bd6 f8R Ng3 Rf5 Be4 Nca3+ Bc2 Qd2 h1R Qf3+ Bd3 Bd4 Nf1 Bg4 Ra7 Rg3 Rf8 Bh5 Rf6 Bc3 Bc4 Rg7 e4 Qd4 Bh2 Qd2 Bg1 Qd4 Na6 b8B Bb7 c8B Nb4 c7 Nc6 Qd2 Bba6 Bb7 Nd4 c8B Bab5 Bf4 Ba4 d6 Bf7 Bc6 Rc7 Ba6 Bg6 Bd3 Ne6 Bce5 Nd4 Qa5 Kb2 Qb4+ Bb3 Ba4 Rb7 Nc3 Ra7 Bg3 Rc7 Rc1 a1B Ncb1 Qa7 Rc5 Ka2 Ra5 Qb6 Ra7 Qc5 Re7 Rf7 Bh8 Rf6 Rg7 Bh2 Kf2 e1Q+ Kg2 Bg1 Ba6 Bh2 Be2 Bg1 Bf4 Qh4 Bg3 Bh2 Kf2 Bg1+ Ke1
qkbBrB2/1N1p1Q1K/p1Qn4/3b1BB1/4PN2/1nR5/rR3Bqb/2n2b1Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 Kd3 f5 h4 g4 b4 a6 c4 f3 h6 g3 h7 g2 h5 f2 c5 f4 Ke4 d3 Kf5 f3 Kg6 d2 e4 Bb7 h6 Ke7 c6 Kd6 b6 Bc8 c7 Nf6 b7 Ne8 b5 Nc6 b8B Na5 b6 Kc6 b7 Nf6 Rh2 Kd6 Nh3 g1N Qb3 d1B Nc3 Ne8 Qf7 Ne2 Ra3 Bb3 Na4 Bd5 Bg5 Nc1 Rc3 Nab3 Ba7 Bg7 b8B Bcb7 c8Q+ Qc7 Nc5 Bd4 Nf4 Kc6 Bh3 f1Q Be6 Nd6 Bf5 Bg1 Kg7 f2 Bb6 Qh3 B8a7 f1B Rhc2 Rb8 Kg6 Re8 h8B Nd4 h7 Qh2 Bg7 Qg2 Qd8 Bc8 h8Q Qb7 Qh1 Qa8 Kh7 Bh2 Bf8 Rb7 Bc7 Rb5 Rb2 Ra5 Bab6 Ndb3 Nb7+ Bfc4 Bf2 Ra2 Rf3 Bf1 Qde7 Nc4 Qe5 Nd6 Bcd8 Be6 Qc3+ Bec4 Bde7 Kc7 Bd8+ Kb8 Rd3 Be6 Qc6 Bd5 Rc3
n1B4N/1P2N3/2R2qpr/4kbb1/3N1bQN/pq1QqR1r/1Q4nB/1K2N2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 c5 e4 f5 h4 a5 b4 f3 e5+ Kc7 d6+ Kd7 h5 Ke6 d5+ Kd7 b6 a4 h6 a3 h7 g6 b5 g3 b7 g2 b6 f2 Ba6 f1Q Nc3 f4 Kb1 f3 Rh3 c4 Bf4 f2 Nb5 c3 Nd4 Bh6 Bh2 Qc4 Ngf3 g1Q Ne1 f1B Rf3 Nf6 Qd3 Ng4 e6+ Ke8 e7 Kd7 e8N Qf6 Qd1 Bg5 Ng7 Qe3 Ngf5 Bg2 Nh4 Bh1 Ra2 Qb3+ Rb2 Nc6 b8Q Na7 Qe2 Nb5 Bb7 Qa4 Rc2 Nc7 Rc1 Qb3+ Qb2 Ke8 d7+ Kf7 d8Q Bf5+ Rc2 Ra5 d6 Na8 d7 Re5 Bc8 Re7 Nc6 Ke6 Qg3 Bf4 Nd4+ Ke5 b7 Re6 Ka1 Rc6 Rc1 c2 Qg2 Rc3 Qe2 Rg8 h8N Rg7 Qd3 Rh7 Qf8 Rh6 d8N Rc6 Qb4 Rc3 Rd1 c1B Kb1 Qe2 Rd2 Ne3 Rc2 Ng2 Qbc4 Qe3 N8c6+ Kd6 Ne7 Ke5 Rf1 Qg3 Qa4 Bg5 Qac4 Bcf4 Rf3 Qf2 Qa4 Qe3 Qd7 Be4 Qh3 Bf5 Qg4 Qb4 Qa6 Qd2 Rf1 Rh3 Qd3 Qe3 Rc6 Qb3 Rf3
4q3/1p1Q2Q1/2rbN2k/R1QBB1N1/1R2Q2p/nr1bQ1nN/q1bbPKn1/8 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 g4 c5 d4 f5 a4 Kf7 g6+ Kg7 d6 h5 d7 c4 g5 b3 a5 b2 d5 f3 a6 h4 d6 c3 a7 c2 Qd4+ Nf6 Ra6 f4 Nd2 b1B Qe4 Nh5 Nh3 Ng3 Ra5 Na6 Bg2 Rh6 Kf2 Qe8 d8N Nc7 d7 Nb5 Rg1 Bd6 Bb2+ Be5 Qe3 c1B Ne4 Bd3 Re1 Bd2 Rb1 Na3 Ne6+ Kh8 g7+ Kh7 d8Q Bd6 Bh1 Bd7 Bf6 Ba4 Rb4 Bac2 Be5 Rf6 g6+ Kh6 g8Q Rc8 a8Q Rc3 g7 Rb3 Kg1 f2+ Kg2 f1N Qaa7 Rg6 N4g5 f3+ Kf2 Rf6 Qe4 Ne3 Qc5 Ng2 Qf8 Rg6 Qfe7 Rf6 g8Q Rg6 Kg1 Rf6 Qdd7 f2+ Kh2 f1Q Qgg7+ Kh5 Qee3 Qb1 Qe4 Qa2 Kg1 Rf4 Qee3 Rc4 Kf2 Rcc3 Qcd4 Rc6 Qc5 Nf4 Bd5 Ng2 Qgf7+ Kh6 Qf5 Rc7 Qfe4 Rc6 Qg7+
1Q1R1n2/bpr4k/R2BpN2/1P5K/qNr1b2b/1bnr3N/1QB2q2/3NN2R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 Ke2 Kf7 Kf3 Kg7 Kg4 c5 f4 c4 d4 h3 a4 b3 a5 e6 a6 h6 d6 c3 d7 b2 a7 c2 f6+ Kg6 f5+ Kh7 d5 h2 f7 Qc7 d8N Qb6 d6 Nd7 f6 Qf2 Nc3 b1Q Ra6 Qb3 Nf3 Ne7 Kh5 Qa4 g4 Nd5 g5 Be7 Ba3 c1B f8Q Be3 Nd1 Nc3 f7 Bb6 Qe8 Nf8 Nc6 Bd7 Ne1 Rc8 a8Q Rc7 Nb4 Bc6 d7 Be4 d8R Ba7 Qb8 Bc2 Qc6 Bb3 Qg2 Rg8 Bd3+ Rg6 Rf1 h1B Bc2 Rc4 Qgh2 Be4 Rh1 Rf6 Qg2 Rf3 Qgh2 Rd3 g6+ Kh8 g7+ Kh7 g8N Bh4 Kg4 Bg3 Qg2 h5+ Kg5 h4 Kh5 h3 Nf6+ Kg7 Qh2 Bh4 Qhe5 h2 Qd4 Nd7 f8N Rc7 N8h7 Nf8 Ng5 Kh8 Rf1 h1R Nh3 Rh2 Rh1 Rg2 Bc1 Rg4 Bf4 Kg7 Bd6 Rf4 Ng8+ Kh7 Qf6 Bg2 Qe5 Rfc4 Qf6 Be4 Qd4 Nd5 Qb2 Nc3 Nf6+
qR2R3/P2BKnQ1/qq1n1r1B/3pbb1k/rQQ5/pN4b1/5B2/q3BB1N b - - 0 1 illegal: No proof kernel
BKbRb1q1/p2r1bbR/2Q1rB2/2B1Q3/5Nn1/4nqQ1/2p1k1BP/1B4nN b - - 0 1 illegal: No proof kernel
3B2R1/pbb1KQ1n/qN1B1r2/4B3/bB6/p1R2PNk/Qn2r1nn/N3qB2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 c5 b4 e5 d4 c4 b5 e4 b6 c3 b7 h6 d6 h3 d7 c2 d5 h2 d6 a3 Bd2 c1N Bb4 e3 Qb3 e2 Qa2 e1N Ne2 Ncd3 Nd2 Nc6 b8B Qb6 Rc1 Bb7 Ng3 Nd4 Rc3 Ndf3 Nb3 Qa6 Na1 Nb2 Rg1 h1B d8B+ Ke5 f6 Nh2+ Kh5 Kf4 Kg6 Kg4 Kf7 h5 d7 h4 Bde7 h3 d8B Rh6 Be5 Bc6 Bec5 Ba4 Bcd6 Rg6 Ke6 Bh6 Kf7 Bf4 Kf8 Rb8 f7 Nf6 Ke7 Nh7 f8N Rf6 Nd7 Rb5 Nb6 Rd5 Nh5 Rd2 g3 Bb7 f3+ Kg5 g4 Kh4 g5 Re2 g6 Ng2 g7 Bg3 g8Q Bf4 Qge6 Bg3 Bb8 Bf4 Bd4 Bc7 Ng3 Nf4 Rc6 Be5 Ne4 Ng4 Bg2 h2 Qf7 h1Q Rc3 Nh2 Bh3 Nbd3 Rg5 Nb2 Ng3 Qe1 Bf1 Ng2 Rg8 Kh3 Nc4 Bc7+ Be5 Ba5 B8d6 Bc7 Nb6
2R2NN1/p1R2nK1/3B3B/1rr1B1k1/QPB2n1n/pqQ4q/4rbb1/2rB1N2 b - - 0 1 illegal: No possible last move
Rn2b3/p2q1rRr/R2QQ2R/3rn2N/P1p1R1q1/B5k1/K1b4b/3N1BbQ b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 h4 gxh4 b4 d5 bxc5 dxc4 a4 Kf7 g4 Kf6 d4 b5 Kd2 Kg5 d5 Kf4 d6 h5 f6 e5 g5 e4 Kc2+ e3 Kb2 h3 d7 h4 g6 h2 f7 h3 c6 b4 c7 b3 g7 Bd6 f8Q+ Nf6 g8R Rh7 Nc3 Rf7 Rg7 Ng4 Nge2+ Kf3 Kb1 b2 Ng3+ e2 Ka2 Ne5 Nh5 Qh4 d8Q Qg4 Qfe8 Bd7 Qe6 Be8 c8R Bc5 Q1d6 e1B Qh4 Bd4 Rc6 b1B+ Ka3 Bc2 Ka2 Bd2 Nd1 Bf4 Ba3 Bg3 Ra6 Bb6 Rg1 h1Q Rg2 Bd4 Rh2 Qg2 Rh1 h2 Rb1 Be3 Rb7 Q2h3 Re7 Ke4 f4 Kf3 f5 Bg1 Qg6 Bf4 f6 Qd7 Qf5 Qg4 Qfe6 Bge3 Rg1 h1R Qe1 Rh2 Rh1 Bg1 Qh4 Rd2 Qe1 Rd5 Rh4 Rf8 f7 Rh8 f8R Rh7 Nf6 Bfh2 Rh6 Bh5 Qe4+ Kg3 Rd8 Be8 Qh1 Nc6 Rc8 Rb8 Rd8 Rb7 Ra8 Nb8 Rgg6 Qb5 Reg7 Rf7 Nh5+ Kh4 Rf6 Qb7 Rf4 Qd7 Bd3 Kh3 Re4 Kh4 Be2 Kh3 Bf1+ Kh4 Nf4+ Kg3 Nh5+
1NRB2QN/1B2n2r/1Q2n3/1bN1B2P/rk1pn3/1p1n4/1q2Nbn1/R4nNK b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 b5 f4 g5 Kf2 e5 Kg2 Ke7 a4 Kd6 c4 Kc5 h6 d5 h7 d3 f6 e4 f7 e3 a5 g4 h5 g3 f5 e2 a6 e1N+ Kh3 g2 Kh2 d2 a7 b3 f6 b4 Bb2 Nc6 Be5 b2 Qb3 d1N Nc3 b1N Nce2 Nd2 Qb1 Bd6 f8B d4 f7 Nc3 Be7 Qb6 f8N Bd7 Bd8 Nd3 Qb3 Nge7 Rc1 Rb8 a8N Nce4 Nc7 Ra8 Ra1 Ra4 Qb2 Rg8 h8N Rg7 Rc1 Rh7 Rc3 Qb5 Nfe6+ Kb6 c5+ Ka5 Na6+ Qb6 Nf3 g1N Nb8 Nh3 Bg2 Nhf4 Ra1 Nf1+ Kh1 Bc7 Nfg1 Kb5 Bf3 Ng2 Bf6 Bh2 Be5 Bg3 Qb3 Bf2 Rc2 Na5 c6 Nb7 c7 Nbc5 c8Q Be8 Qc7 Qb7 Qd5 b3 Rcc1 Kb4 Qb6+ Bb5 Rc3 Nd7 Nc5 Nf8 Qg8 Ne6 Ncd7 Qd5 Rc8 Qc4 Nc5 Qc3 Qg5 Qb2 Qg8 N4g5 Bc6 Ne4 Bb7
2k2b1Q/2Q3Np/1RP1R3/bQ5p/Bnr1b1nq/K3B1rR/2b1bN1Q/6Qb b - - 0 1 legal: proof: f4 b5 h4 e5 fxe5 c5 d4 cxd4 a4 g6 h5 gxh5 axb5 Bb7 Ra3 Ba6 Ra1 Bc8 Kd2 a5 g4 d5 e4 Kd7 b4 f5 c4 f4 Kc2 d3+ Kb2 d2 b6 a4 e6+ Kc6 b5+ Kb7 g5 d4 e5 d3 c5 f3 g6 f2 e7 Be6 e8R Bc8 e6 Ra7 e7 Nf6 g7 Ra5 g8Q Bh6 Nf3 Na6 Nd4 Be6 Nc3 Ng4 Rb1 Bd5 Nf5 Kc8 Ne4 Bf8 Ka3 Nb4 Rh3 Ba8 Qc4 Rg8 Ng7 Ra7 Qe1 d1B Be3 d2 Qc3 Bc2 b7+ Kd7 b8Q d1B b6 Be2 Qh2 Rc7 Qc4 Kc8 Qb5 Rc6 Bg2 f1B Nf2 Bed3 Bh1 Bfe2 Qeg1 Rc7 Bd5 Be4 Bf7 Bh1 Bb3 Bae4 Rb2 Rd7 c6 Rd4 Nf5 Rg6 Ng7 Rc4 Rb1 Ne5 Rb2 Rg3 Rb1 Ng4 b7+ Kc7 Re1 Qd4 Rb8 Qd8 e8Q Qh4 Ra8 Bed1 Ra6 Be2 Qf7+ Kb8 Qg8 Kc7 Qh8 Kd8 Kb2 Kc7 Rb6 a3+ Kc1 a2 Kb2 a1B+ Ka3 Bc3 Ba4 Kd8 b8Q+ Ke7 Q8e5+ Kd8 Rd1+ Kc8 Rd6 Nd5 Qe7 Ba5 Re6 Nb4 Qc7+
1n3k1Q/qR4r1/2RN4/6p1/PbBbpB1Q/1nrNN2n/K5R1/1R2Rbbn b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 g5 f4 c5 a4 b5 d4 e5 Kd2 c4 Kc2 c3 Kb3 c2 h5 e4 d6 g3 d5 g2 f6 Qb6 d7+ Kf7 d8N+ Ke8 d6 Ra6 f5 Qe3+ Nc3 Rc6 h6 Qa7 h7 Ne7 Nb7 Nd5 Nge2 g1B Rb1 Nf4 Ka2 Rg8 h8Q Rg7 Qe1 Nh3 Nd5 Rc3 Bf4 c1B Ne3 Bb2 Qeh4 Ba1 Nc1 b3+ Ka3 b2+ Ka2 b4 d7+ Kf7 d8R Be7 Rd6 b3+ Ka3 Bd7 Nd3 Bb5 Rh2 Bf8 Rg2 Ke8 f7+ Ke7 Re1 b1N+ Kb4 b2 Rc6 Nd2 Nd6 Nb3 Ka3 b1N+ Ka2 N1d2 f6+ Kd8 Be2 Nf1 Rb1 Kd7 Re1 Be7 f8R Ng3 f7 Nh1 Rg8 Ke6 f8R Ba6 Rf5 Bf8 Rb5 Ke7 Ndf5+ Kf7 Rbb6 Bc5 Nd6+ Ke7 Rf8 Bb4 Rf5 Bb2 Rfb5 Ba1 Bg4 Bb2 Be6 Ba1 Bg8 Kf8 Rb7 Bb2 R5b6 Ba1 Nf2 Bf1 Nd3 Bb2 Bc4+ Rg8 Ree2 Na1 Nef5 Bbc5 Bd2 Bcd4 Bf4 Ba3 Rbb2 Nb3 Ne3 Bac5 Rb1 Bb4 Q8h7 Rg6 Ree1 Rg7 Qh8+
b7/1kb1r2Q/nN1r1B1K/Q3p1rR/q6b/pR3N1B/PQ1RRb2/1R3n1r b - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b4 d5 cxd5 h5 bxc5 hxg4 Ke2 Kd7 Ke3 Kc7 Kf4 a5 Kg5 b5 h4 b4 f4 g6 d4 a4 f5 e5+ f6 a3 d6+ Kb7 h5 e3 d5 b3 d7 e2 h6 e1B d6 b2 h7 g3 Qd4 g2 Nc3 b1R Na4 Qa5 d8Q Ne7 f7 Ra7 d7 Na6 Nf3 g1B Rh5 Bgf2 Nb6 Nf5 Bh3 Bd6 f8R Ne3 Kh6 g5 Qb2 g4 Rff5 Rg8 h8Q g3 Qh7 Nf1 Bg5 g2 Bf6 Rd1 Rb1 g1R Rfg5 Rd5 Rg2 Rh1 Rg3 Qa4 c6+ Kb8 c7+ Kb7 Rg2 Rg5 Rh2 Bh4 Re2 Bef2 Qd4 Kc6 Qb2 Bb7 c8R+ Bc7 Rb8 Rd3 Nd5 Ba8 Rb3 Rd2 Nb6 Rd3 Qdg8 Rd1 d8R Kb7 Rd7 Rd6 Qd5+ Kb8 Qa5 Kb7 Rd8 Rc6 Bc8+ Kb8 Ra1 Bd6 Qg7 Re7 Qh7 Bc7 Bh3+ Kb7 Rdd2 Rd6 Rb1
3kQn2/2r2R2/1Bqp1r2/R6B/bRpP1nbN/4nB2/2RQ1N2/R1nbK2b b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 d4 f5 e4 h5 g4 a5 b7 c5 b6 c4 g5 f3 b5 a4 g6 a3 g7 d6 e5 f4 e6 a2 e7 h3 Be3 h2 Bg2 h4 Bd2 h3 Bc3 f2+ Ke2 f1B+ Kd2 f3 Ba5 f2 Nf3 Rh7 Nh4 Nd7 b8Q Be2 b7 f1N+ Ke1 Ngf6 g8R+ Nf8 b6 Nd5 Nd2 Qd7 Bf3 Nfe3 Rf1 h1B Rg5 h2 Ne4 Nf4 Nf2 Qc6 Qd2 Bd1 Rd5 Kd7 e8B+ Kd8 Beh5 Rc7 Rg5 Ra7 Qa8 Rf7 b8R Rac7 b7 Rf6 Bb6 Bg2 Qa4 h1B Ra5 Bh3 Rba8 Bd7 b8R Bg4 Rc1 a1N Rc2 Nb3 R8a7 Nc1 Rg1 Be6 Rg7 Bg4 Rf7 Bd7 Qb5 Bg4 Ra1 Bd7 R7a5 Be8 Rb7 Bg4 Qe5 Qa4 Ba7 Qd7 Rb4 Qb5 Bb6 Qa6 Ba7 Ba4 Bc5 Qa8 Bb6 Qc6 Qe8+
r1b5/1b2R1bp/1B3NBq/2b1n2P/2N1rR2/2pnNQ2/6N1/kR1nQnNK b - - 0 1 legal: proof: d4 b5 c4 e5 g4 f5 a4 exd4 axb5 d5 cxd5 fxg4 e4 Kd7 h4 Kd6 f4 Kc5 Kf2 Kb4 Kg2 a5 f5 c5 b6 g5 b7 g3 f6 a4 d6 g4 e5 a3 d7 c4 f7 a2 h5 c3 e6 d3 e7 d2 e8R Nh6 Qe1 Kb3 Na3 d1B Nc2 Qf6 d8N Nd7 b8N Nc5 Nbc6 Nd3 Be3 Bg7 f8Q Nf5 Bb6 Qh6 Rb1 a1N Ne6 Ka2 b4 Nb3 b5 Nd2 Rh4 Ne3+ Kh1 Bf3+ Bg2 Bd5 Na5 Ndf1 Be4 Nd1 Nf4 Bdb7 Nc4 Ra4 Re7 Ra8 Qf5 Re8 Rc7 Re7 N2e3 Re6 Qd5 Re8 Bg6 Re4 Rb4 Ka1 Re7 Ra3 Qf5 Ra8 Rb1+ Ka2 Nf3 Nc1 Rd7 Bc6 Bd4 Bd5 b6 g2+ Kg1 Bc6 b7 Bd5 b8N Bdb7 Re7 Nd3 Bb6 Ra6 Be8 Ra8 Rb4 Ka1 Nd7 Ng3 Kh2 g1N Bg6 Nf1+ Kh1 g3 Nf6 Rd4 Ned5 Re4 Rb1+ Ka2 Ng5 Nf3 Ngh3 Nfe5 Qg4 Nfe3 Qf3 g2+ Kh2 g1B+ Kh1 Nf1 Ng2 Bc5 Rf4 Be6 Nde3 Bec8 Rb3 Ka1 Ng1 Bh3 Rb5 Bhc8 Rb1+
1bB3nK/1R1p4/2r1b2b/1pR1r2q/2NPNk2/3bRrR1/n1N1Q3/1R1QB2r b - - 0 1 legal: proof: e4 b5 a4 g5 h4 f5 exf5 gxh4 b4 c6 axb5 Kf7 b6 Ke8 b5 cxb5 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 h5 f4+ Kh6 d4 a5 g4 e6 c4 h3 g5+ Kg7 b7 h4 g6 Kh6 f6 a4 c5 a3 c6 h2 c7 h3 g7 a2 f7 Ra6 f5+ Qg5 Nd2 Qg2 f6 Kg5 Rb1 Qf3 Bg2 a1R Nc4+ Kg4 Bf4 Rc6 Bg3 Na6 b8R Bb7 c8N Ra3 Be1 Nb4 N8d6 Na2 Ne4 Qe2 Nf3 Rh5+ Ng5 Ba8 Rb7 Rf3 Rf1 h1B Rc1 Bb4 f8Q h2 f7 Bd2 Qe8 Be3 f8R Bd2 Rf5 Be3 Nf7 Bh6 Rc3 Rg5 Re3 Rh5 Nfd6 Rg5 Nf2+ Kg3 Ke4 e5 Nd3+ Kg4 Kd5 e4 Nb4 Rh5 Re5 Kf4 Nc2 Rf5 Ra3 e3 Ne4 Qf2 Rg1 e2 Re3 Qh4 Qe7 Qh5 Qe6 Rc7 Kd6 Rc8 Rc5 Re5 Rf1 Nf6 Ke7 Rc6 Kf8 Ng8 Bb4 e1B Ba5 Bg3 Be1 Qh3 Kf7 Qh4 Kg6 Qh5+ Kh7 Nf6+ Kh8 Ng8 Bh3 Bg2 Rh1 Bf1 Bg2 Bd3 Rg1 Ne7 g8R h1R Rg5 Ng8 Rf1 Bh4 Rg3 Bd8 Qe7 Bc7 Qe8 Qg5 Qh5 Bb8 Qh2 Qh5 Rg1 Rf2 Bf3 Rf1 Qhe2 Rf2 Bg2 Rf3 Rc7 Rf2 Ba5 Rf5 Qdd2 Rcf6 Nc3 Bae4 Rb1 Rd5 Qdd1 Re5 Ra7 Bf5 Bb7 Rf3 Ne4 Bg4 Bc8 Rc6 Rb7 Be6 Be1
1K1bk3/1pRr1R2/1Q4q1/r1nrQ3/b5P1/N2bn1QN/R1BRb1p1/1r2B2R b - - 0 1 illegal: No proof kernel
8/npNK4/1Q1Rn1rp/RB1BbBNk/3B3b/2q1r2n/rQ4nP/Rr1B4 b - - 0 1 legal: proof: g4 e5 b4 c5 f4 a5 d4 axb4 Ba3 f5 Bc1 d6 fxe5 cxd4 Nc3 f4 Nb1 Bf5 gxf5 Qc7 Qd3 Qa5 Qd1 Qd8 Kf2 Kf7 Kf3 g5 Ke4 g4 Kd5 b3 e4 h6 c4 d3 a4 f3 f6 Kg6 Ke6 g3 c5 b2 c6 f2 c7 d5 c8B d4 a5 d2 a6 d3 a7 g2 f7 Nf6 Qe2 d1N Nh3 g1B Be3 d2 Ng5 Qd4 Bg2 f1N Na3 b1R Nb5 Rg8 Nc7 Qd3 Bd4 Bc5 f8Q Nd5 Qff2 Nc6 Kd7 Nfe3 e6 Bd6 e5 Qc3 e7 Nf4 e6 Be5 Bd5 Neg2 Qfe3 Bf2 e8B+ Kf6 e7 Bh4 Qb5 Nf2 Rd1 Ne6 Qb2 Nh3 Bh5 Rg6 e8B Kf5 Be2 Kf6 Bb5 Kf5 Qg1 Kg4 Qe3 Kh5 Qf2 Rb8 a8R Na7 Ra5 Ra1 Bf7 Ra2 Qf6 Nef4 Qb6 Ne6 Ra1 d1R Bb3 Nc6 R8a6 Na7 B3a4 Rb1 Bc2 Nd8 Bd5 Ra8 Qc5 Ra3 Rd6 Ne6 Qb6 Ra2 Ke7 Rb8 Bcd7 Rf8 Bd1+ Rf3 Bc8 Nf8 Bf5 Ne6 Bdc2 Rd3 Kd7 Re3 Bd1+
3Bn3/1p2prQR/2q1P2K/4B2b/1kB1Nnr1/3NB1B1/2nbQb1R/1nb4Q b - - 0 1 legal: proof: f4 a5 c4 h5 b4 d5 cxd5 axb4 g4 g5 fxg5 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 h4 f5 e4 c6 a4 b3 d4+ Kb4 d6 b2 d5 g3 d7 g2 h5 c5 d6 c4 a5 c3 a6 c2 a7 Qa5 d8B Qc7 h6 Qc5 d7 Bg7 e5 Qf2+ Nf3 g1B h7 Nc6 g6 Qb6 Kg5 f4 Nc3 b1N Ne1 f3 Qe2 f2 Bc7 Nd8 Rh2 Qc6 Ne4 Nf6 Be3 Rg8 h8B c1B Ra5 Rb8 a8Q Ne8 Qaa6 Bf6+ Kh6 Ne6 d8B Nf4 g7 Bg4 e6 Bc3 Rah5 B3d2 Qa1 Rc8 R5h4 Bh5 Be5 Rf8 g8Q Rf7 Qg7 Ra8 Bec7 Ra5 R4h3 Rg5 Rh4 Rg4 Bb8 Nd3 Bg3 Nf4 Nd3+ Kc4 Qf3 Kb5 Be2 f1N Qh1 Bf2 Qa2 Na3 R4h3 Nc2 Qab2+ Bb4 Qa2 Nd2 Rh4 Nb1 Bf1 Nd4 Qe2 Nc2 Ne5+ Ka4 Qg5 Bg1 Qeg2 Qd6 Bc4 Qc5 Qe2 Bbd2 Nd3 Bf2 Be5 Qc6 Qg7 Ka3 Kh7 Bg6+ Kg8 Ka4 Rh8 Bh5 Kh7 Ka3 Kh6 Ka4 Rh7 Ka3 Ndc5 Kb4 Nd3+
N1k5/2Rq3Q/1r2pBB1/1RnBP3/p2n1n2/r3B3/brQ1nKnN/1N1qB3 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Rh3 Bh6 Rh1 fxg4 Bf4 g3 Be3 g4 Bc1 Bg5 hxg5 Kf8 Rh6 Kf7 Rh1 Ke8 f4 a5 c4 d5 b4 Kd7 e4 h5 c5 a4 g6 g2 g7 h4 f5 d3 f6 h3 f7 g3 f8Q d4 b6 h2 b7 Nf6 g8B Rh6 b5 Na6 b8B Nd5 b6 Nf4 b7 Rb6 Be5 Rb8 Nf3 g1N Qg7 g2 Qc2 d2+ Kf2 d1Q Qh7 d3 Bd5 d2 Bd3 Nge2 Bf6 g1N c6+ Kc7 e5 Nd4 Bg6 Qd7 Ra2 e6 Rb2 Nge2 Rb5 Nc5 Rg1 h1R Nh2 Nf3 Rg3 Nfd4 Rc3 Rg1 Rc4 Rg3 Bb2 Rb3 Bc3 Ra3 Ra5 Rb2 Rb5 Ra8 Bb4 Ra6 Bc3 Rb6 Ba5 Qe7 b8B+ Kd8 Rc3 Ba6 c7+ Kc8 Ba7 Qd7 Rb4 Bc4 Rb5 Rc6 B7b6 Ba2 Bb4 Kb7 c8N Kb8 Ba7+ Kc7 Nb6 Rd6 Na8+ Kc8 Ba5 Rb6 Qf5 Qb3 Qc2 d1N+ Ke1 Ne3 Kf2 Neg2 Rc4 Qd3 Be1 Qd1 Rc3 Rc6 Bb6 Nb7 Bc5 Rb6 Rc4 Nb3 Bd4+ N7c5 Be3 Nbd4 Nc7 Na6 Rc6 Nc5 Na8+ Kb7 Rc7+ Kb8 Ra7 Kc8 Rc7+
1q1Rn3/3b4/1Q4r1/1nqN1qp1/pNkR2N1/P4rn1/NKn2Br1/3BN1QQ b - - 0 1 legal: proof: g4 c5 e4 d5 b4 dxe4 bxc5 g6 g5 Bg7 h4 Bd4 h5 Bg7 h6 f6 hxg7 fxg5 Ba6 g4 Be2 Kf7 Bf1 Ke8 d4 Kf7 Kd2 Ke6 Kc3 Kd5 f4 h5 f5 e5 a3 b5 c6 a5 c7 h4 f6 h3 f7 a4 f8Q e3 Qf2 e2 Nf3 e1N Be2 b4+ Kb2 b3 Be3 e4 Qg1 h2 Bf2 Bd7 c8Q g5 Qa6 g3 Qb6 Nf6 g8N g2 Nh6 e3 Ng4 Rf8 c3 Nc2 Ne1 Ne8 c4+ Ke4 c5 Kd5 c6 Ra6 c7 Nc6 c8N Na7 Bf3+ Kc4 d5 e2 d6 Nb5 Ne7 Qb8 Nc3 Rf6 Na2 Rf8 Qf1 g1R Nd5 Rg2 Rg1 h1N Rb1 Bc8 d7 Ng3 d8N Bd7 Nc6 Rf6 Ncb4 Rg6 Qd8 Raf6 Qb6 Rf5 Rh1 Rf7 Rh4 Rf5 Ned3 e1Q Qg1 Qe7 Ne1 Qc5 Qc1 Rf4 Qh1 Rf5 Qe3 Rff6 Rd1 Rf7 Rd2 Rf5 Bd1 Rf3 Kb1 b2 Rh8 Nec7 Rd8 Ne8 Rd3 Be6 Qc1 Bd7 Rd4+ Kb3 Be2 Na1 Nec2 Nf6 Qcg1 Ne8 Rd3+ Kc4 Ne1 Nb3 Kc2 Na1+ Kd2 b1Q Bd1 Qb3 Kc1 Qc3+ Kb1 Nc2 Rd2 Qd3 Kb2 Qf5 Rd4+
N6n/qRB1B2N/qp4Bn/BQrR2p1/QP4r1/qQ1rB3/k2n3K/2bq4 b - - 0 1 legal: proof: f4 d5 g4 h5 a4 hxg4 c4 e5 cxd5 exf4 a5 b6 a6 Bb7 axb7 Qc8 Ra2 Qd7 Ra1 Qd8 Kf2 Kd7 Kg2 Kd6 h4 Kc5 e4 Kb4 d4 c5 h5 a5 h6 f5 h7 a4 d6 c4 e5 f3+ Kh2 f4 d5 f2 d7 c3 d6 a3 e6 a2 e7 c2 e8Q Kb3 Nf3 Ra5 Na3 Rc5 Be3 Nh6 Ng5 f3 Nb5 Nc6 b8B Ne7 Nc7 Ng6 Bd3 f1Q Na8 f2 Bc7 Qb8 d8Q Qa7 Be4 Qfa6 d7 f1Q Qe2 c1Q Qc8 Qfd1 d8B Be7 Rb1 a1N Q2b5+ Ka2 b3 Rg8 h8B Qca3 Nh7 Bg5 Be7 Rf8 Rc1 Rf3 Rf1 Rg3 Rf5 Rf3 Rd5 g3+ Kh3 g2+ Kh2 g1R Rc4 Nh4 Bg6 Rg4 Rf4 Rfg3 Rf7 Bf4 Qa4 Bg5 Qeb5 Rf3 Bd2 Rd3 Ba5 Bc1 b4 Nb3 Bh5 g5 Bg6 Qf1 Bd4 Nd2 Be3 Qd1 Qh8 N4f5 Qc3 Nd6 Rf8 Ndf7 Rb8 Nh8 Rb7 Qf1 Bf2 Qe1 Be3 Qd1 Qcb3+
B3B1r1/1Qp2qN1/1p2k1nN/1Qn2R2/N1r4R/1r1BB1q1/1BP1rq2/1Kbn4 b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 e5 dxe5 f5 h3 fxg4 Kd2 g5 Qe1 g3 Nc3 b6 Kd1 g4 Kd2 g2 Qd1 g3 Nb1 Bb7 Ke1 Bc6 Kd2 Bf3 Ke1 Bg4 hxg4 Ra6 Nc3 Ra4 Nb1 Ra8 Kd2 Kf7 f4 h5 e4 d5 a4 b3 a5 d4 e6+ Kf6 g5+ Ke7 e5 b2 g6 h4 g7 h3 a6 d3 f5 h2 a7 Nc6 f6+ Ke8 e7 Kd7 e8B+ Ke6 f7 Rc8 a8B Qd5 Nh3 g1Q Nc3 b1R Ra5 g2 Na4 Rb3 Qf3 Ba3 f8B Rh4 Bc5 Nd4 Bb2 Qf2+ Kc1 g1Q Kb1 Ne7 g8N d2 Nh6 d1N Bd3 Ng6 Qg2 Qd7 Qb7 Qdf7 Rb5 Qgg3 Ra5 Nc6 Be3 Nb8 Rc5 Na6 Nf4+ Ke7 Rb5 Nc5 Nh5 Rc4 e6 Kd6 e7 Ke6 Bc6 Rg8 Be8 Nd7 Rf5 Nc5 Rg1 h1R Rg2 Rh8 Rh2 Re1 Rh4 Re2 Bb5 Rg8 e8Q+ Kd6 Bd7 Bb4 Bb5 Bd2 Qec6+ Ke7 Qd5 Bc1 Be8 Qf6 Qdc6 Qf7 Qb5 Ke6 Ng7+
QN6/3Q1b2/5rN1/Rr1bR3/1pr2nBk/RRB1r3/1P3p1r/K1n1RNbn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qd1 b4 Rh3 Qd7 Rh1 Qb5 axb5 Bf5 Nh3 Bg4 Ng1 Bc8 d4 Ke7 Kd2 Kf6 Kc2 Kg5 e4 c5 g4 h5 b6 f5 e5 a5 e6 h3 b7 c4 e7 h2 e8R c3 d6 h4 d5 a4 d7 a3 d8Q+ Ne7 d6 a2 d7 h3 Qd6 Na6 b8R Kh4 g5 f3 g6 f4 g7 f2 g8N f3 Rb7 Nc5 Qd5 Rb8 Nf6 Ng6 Ra7 Nf4 Re5 Ncd3 Nd2 Bc5 Ne2 Rb5 Ra5 Ba7 Rg1 h1N Qa8 h2 Bh3 f1R Bg4 Rh7 Kb3 c2 Qc7 Rh6 d8R Be6+ Rdd5 Rf2 Re1 Bf7 Nd7 Rf6 Nf1 Rg2 Qcc8 Bg1 Nb8 f2 Bd2 c1R Qd7 Rc4 Bc3 Nc1+ Kc2 Rg3 Rd3 Re3 Ra3 Ng3 Rb3 h1B Ra3 Bb7 Rb3 Nh1 Rdd5 Rbb6 Ra5 Bbd5 Raa3 Ng6 Nf4 Rb5 Rb1 a1R Ra5 Ra3 Ra1 Rh3 Kb1 Rh2 Ra2 Rh3 Ka1 Rh2 Ne6 Nf4 Nf8 Re6 Ra7 Raa6 Ra5 Rf6 Raa3 Rae6 R7a5 Re7 Rf5 Ree4 Re5 Re3 Ng6+
n2N1Rq1/r1n1pN1N/2N2Br1/1Q1r3p/nn1QBK2/k3RNn1/2n3QP/5b2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 f4 b5 axb5 fxe4 g3 g6 f5 Bg7 Bf4 Bh6 Bc1 Bf4 gxf4 Qb6 Ke2 Qc7 Ke1 Qd8 Kf2 h5 Kg3 a5 c4 d5 b4 Kd7 b6 Kc6 f6 g5 f7 d3 f8Q g4 b7 d4 f5 d2 c5 a4 f6 d3 f7 Kb5 c6 a3 c7 e3 Qe8+ Nd7 b8N a2 f8Q e2 Qh6 e1N Qf3 Ka4 b5 d1R b6 d2 b7 Nf6 Qhe3 Rh6 Qg2 Nd5 Bb2 Nc2 Bf6 Ra7 Nf3 Ncb4 Nc3+ Ka3 Qd4 N7b6 Qb5 Na8 Nc6 Rg6 b8N Qg8 Nd8 Ba6 c8N Ndc7 Kf4 g3 Rc1 a1N Ne4 Nac2 Nbc6 Rg5 Ncd6 Rg6 Qgg1 g2 Neg5 Bb7 Bd3 Ba6 Qgf2 g1N Be4 Ne2+ Ke5 Re1 Nh7 d1N Rf1 Ng3 Kf4 Nc3 N6f7 Rd1 Qg2 Na4 Rf2 Rd3 Re1 Rd1 Qdb6 Rd7 Qd4 Rd5 Re3+ Ka2 Be5 N8b6 Qbd3 Rgd6 Nf7g5 Nh1 Ng1 Ra8 Kf5 Rg6 Rf4 Ra7 N1f3 Nba8 Q3c4+ Kb1 Qcc5 Bf1 Qb5 Rd7 Bg7 Ka2 Ke5 Rdd6 Rf8 Ng3 Bf6 Rd7 Kf4 Rd5 Bd3 Kb3 Ngf7 Ka3 Be4+
b5k1/Rp1r1N2/R2QB2p/2n1nNBn/3B2nN/q4NN1/1n4rP/n1q3QK b - - 0 1 illegal: Other
4B3/R1K5/rp1N1br1/k1Nr2RR/qQR1b2p/2r1BR2/QP1b4/n1Q2bb1 b - - 0 1 legal: proof: e4 d5 a4 f5 h4 fxe4 c4 g5 cxd5 gxh4 a5 Nd7 a6 b6 Rh2 Nc5 Rh1 Nb7 axb7 Qd7 Qc2 Qd6 Qd1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 e5+ Kf5 h5 b8R a5 g4 e3 f4 c4 d4 e4 Ke5 a4 g5 h3 d6 Kc6 g6 Kb5 d7 h2 d5 e2 f5 e1B g7 a3 d6 e3 f6 a2 f7 h4 Qd2 e2 Nh3 c3 Ng5 c2 Ne6 Nh6 g8Q Bf2 Nc5 Ba6 Rc8 Be7 f8R Nf5 Nc3+ Ka5 Rg1 e1B Bb5 h1B Rg5 Qe8 d8Q Rh6 d7 Bg1 Qc7 Nd4 d8R Bf6+ Kd6 Nb3 Qgf7 Qe4 Be8 Rg6 Nb5+ Qb4 Qce7 Be4 Kc7 Rb8 Qe3 Bd2 Rdd5 Qa4 Nd6 Bf1 Rh5 Ra8 Rdg5 Ra6 Qc4 Bh8 Rf3 Bf6 Rb1 a1R Qf8 Ra2 Ra1 Ra3 Ra2 Na1 Qeb3 Bb4 Be3 c1R Qe7 Rd1 Qc1 Be1 Qbe6 Rc3 Ra3 Kb4 Qa2 Rd5 Qf8 Bd2 Qe7 Qd1 Ra5 Qa4 Qf8 Ra8 Ra7 Re5 Qg7 Qb3 Rb7 Bg2 Kd7 Rd5 Ne6 Ra6 Ra7 Bd8 Qd4+ Qc4 Rc6 Bf6 Kc7 Bf1 Rc5 Rca3 Rc6 Ka5 Qdc3+ Qb4 Qcb3 Qa4 Rc4 Bc2 Nc5 Be4 Qbc2 Rad3 Qcb3 Rc3 Qb4#
6N1/1r1BRRKp/1Q3N1r/3r1QkP/1q2p3/bn4Bb/3rbB2/bRB2q1B b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nc6 f5 Nb4 g5 Nd5 Ne2 Qc7 Ng1 Ndf6 gxf6 Qd8 Bf4 e3 Ke2 Kf7 Kf3 d5 Kg4 e5 Kh5 a5 c4 g5 b4 d3 h4 e2 b6 e1Q b7 g4 b8B d2 b5 a4 b6 g3 c5 d4 b7 g2 c6 a3 c7 e4 Qb3+ Be6 c8B d1B+ Nf3 g1R Ba7 a2 b8B d3 Nc3 d2 Nd5 Qa5 Bf2 Qa4 Bg2 Bd6 Ne7 Ra5 Qb6 Bdb3 Nh2 d1R Ng4 Rad5 Kg5 Qaa5 h5 Nh6 Rc1 a1B Rc7 Re8 Ng8+ Re7 Bf3 Rg3 Rg1 Qb5 Bh1 Ba3 Ra7 Qea5 Bd2 Rf3 Bbg3 Bc4 Bde3 R1d3 Rb1 Qab4 Bc1 Rd2 Rd7 Bf1 Rb7 Rc3 Rc7 Rc6 Ra7 Kf8 f7 Kg7 f8R Qe2 Rb7 Qe1 Rd7 Be2 Re8 Qf1 Rb7 Rdd7 f6+ Kf7 Ra7 Nf5 Rb7 Nd4 Kh6 Bf5 Rf8+ Ke6 f7 Nb3 Re8 Rcd6 f8Q Rc6 Nh2 Bh3 Ng4 Rcd6 Qf4 Rc6 Rf8 Rf7 Qg5 Rf5 Rf7 Rcd6 Ra7 Rf6+ Kg7 Rh6+ Qd4 Rd5 N4f6 Rf5 Qc5 Re5 Qge3 Kf5 Qb6 Re7 Qf3+ Kg5 Rc7 Rd5 Bg4 Re8 Rce7 Rb8 Bd7 Rb7 Qf5+
B1N4Q/r2p1p2/2QR2b1/1rQrqPN1/R2R1Qq1/b1BK2br/b3nk2/Q7 b - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 cxb5 Ne7 b6 Ng8 b5 Ke7 a5 Nc6 a6 Na5 Nd2 Ke8 Nb1 Nb7 axb7 Bg7 Ba3 Bh6 Bc1 Bf8 Kd2 Ke7 b8Q Ke6 f4 Kf5 g4+ Ke4 b7 c5 b6 h5 g5 a5 g6 h3 e3 c4 g7 h2 Qd6 d3 b8R h4 b7 c3+ Ke1 h3 Qc7 c2 Kd2 a4 Qb6 a3 Qa6 a2 Nf3 Ne7 g8Q Nf5 Bb2 Ba3 Qg5 Nd4 Bg2 Qg8 Bc3 Ra7 Qc5 Rh5 Qac6+ Rd5 f5 Qg4 Qc1 Ne2 Rd1 h1R Ra8 h2 b8Q Bb7 Qb2 Ra5 Ra6 Rb5 Qc1 Rf1 Qg3 h1R Qh4 Bb4 Na3 Rh3 Nc4 Ba3 Nb6 Ba8 Nc8 Rfh1 Rb1 a1Q Qh8 Qb2 Ra1 R1h2 Ra2 Bb7 Qa1 c1B+ Ke1 d2+ Kf1 Kd3 e4 Ba8 e5 Bb7 e6 Ba8 Re1 d1B e7 Bf4 e8Q Bg3 Ng5 Bb3 Qef8 Bc4 Q5d6 Ke3 Rd1 Bb3 Rd4 Bb7 Be1 Qc3 Rad2 Ba2 Raa4 Qa5 Qdh6 Qc7 Rd1 Qe5 Bc3 Ba6 R1d2 Bb7 Bh1 Rf2+ Ke1 Rg2+ Kd1 Kf2 Kc2 Rg1 Qb4 Rb1 Bg2 Ra5 Qbb5 Ra7 Qbc5 Ba6 Bh1 B6c4 Qh4 Rb5 Be4 Bcb3+ Kd3 Bd1 Bg2 Qh5 Qe4 Qg4 Qf4+ Qf3+ Qe3+ Ke1 Ne7 Rd6 Qcc8 Rba5 Rd5 Rb5 Qa6 Qh5 Qf4 Nd4 Nc8 Qh4 Be4 Qh5 Ke3 Qh4 Qb2 Bh5 Qb7 Ne2 Qa1+ Rb1 R5d3 Bg6 Qbb6 Qg4 Qbc7 Qg7 Ba8 Rd4 Q7c6 Qe5+ Qfe4 Rd6 Rd5 Kf1 R2d4 Kg1 Kd3 Kf2 Nf3 Rb5 Qf4 Qe7 Re5 Qf6 Re6 Rd5 Rd6 Qe5 Ng5+
kbB1K1n1/q2N3b/2R1p1Q1/2qRQ3/b1qQ2nN/r3P1Nb/p5q1/2N1BN2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 h5 Kd3 d5 c4 Kd7 b4 Kc7 f4 Kb7 b6 g2 g6 h4 g7 g3 b5 e6 f5 h3 f6 h2 e3 a4 f7 a3 c5 a2 c6+ Ka8 c7 Na6 Bd2 Rh7 Be1 Qd7 Nd2 Bb7 c8N Nb8 Ne7 Nc6 Nf5 Bd6 f8N Bb8 Ne2 g1Q Rc1 g2 Ng6 Rh4 Nfg3 Ne5+ Kc2 d3+ Kc3 d4+ Kb4 Rg4 Kc5 Be4 Nh4 Bh7 Rc2 Qf2 Nc1 g1Q Be2 Qdf7 Ndf1 d2 Bd3 Q2f5 b7+ Ka7 Be4 d3 Rc4 Qg2 b6+ Ka6 Rg1 h1B Bc6 Re4 Bd7 Ng4+ Kc6 Qf4 Rc5 Ra4+ Rd5 Ra3 Bc8 Qf8 Kd7 Qc5 Ke8 Qfc4 Qf3 d1Q Qe4 d2 Qd4 N8h6 g8Q Qda4+ Kd8 d1B Qg6 Qaa5 Kd7 Ng8 Ke8 Qgd2 Rg2 Bb3 Rf2 Bg2 Rf7 Bd1 Rc7 Bh3 Rc6 Qg2 Qgg7 Bd6 Qg6 Ba4 b8N+ Kb5 b7 Qa7 Nd7 Bb8 Nb6 Ka6 Bd7 Bd6 b8Q Bf4 Qbe5 Kb7 Qeg7 Bd6 Bc8+ Kb8 Nd7+ Ka8 Q7f6 Bb8 Qfe5
R1N1B2K/1n1n3p/2r2N1Q/b1R4P/bQ1Bnp2/1BRkn3/1b1b4/1r1BBn2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Bh3 Qg5 Bg2 exf4 Bf1 f3 Nd2 f4 Nb1 Qf5 gxf5 Kd8 Qd2 Ke7 Qd1 Ke8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 h4 a5 b4 g5 b6 d5 b5 a4 b7 d4 f6 g4 f7 f2 b6 a3 h5 a2 Nc3 g3 Nb5 g2 Be3 Ba3 f8B Bg4 Nh3 g1B Nd6+ Kc3 Be2 f1N Ng5 d2 Rc1 a1B Nc8 d3 Bb4+ Kc4+ Bd4 B1b2 Rh3 Ne7 Kf6 Nd5+ Kg7 Nc6 b8R Nce7 b7 Bd7 e5 Be3 e6 Nc6 e7 Na5 e8B Bb5 Ne4 Ra6 Ra8 Rc6 b8Q Nb7 Nf6 Ba4 Qe1 d1N Qd6 Nf2 Bd1 d2 c3 Kd3 c4 Nh1 c5 Nhg3 Bb3 d1N Ba5 Nc7 Qb4 Ne4 Rc2 Nd5 Rg3 Ra6 c6 Nb6 c7 Nd7 Rc5 Rc6 Rh3 Rf8 Rf3 Rf7+ Kh8 Bc3 Qf8 Bab2 Qh6 Rg7 Rh3 Rg1 Rf3 Be1 Rh3 Ke2 Rg3 B3d2 Rgc3 Rh1 Nb6 Nde3 c8B Nf8 Bh3 Nd7 Nc8 Rg1 Rc2 Kd3 Bg4 Bf2 Bd1 Bh4 Nd5 Bd8 Nf6 Bc7 Qa3 Rh1 Bac3 Ba5 Qb4 Bdc1 Be1 Bd2 Rc1 Ba1 Bh4 Nfg3 Bf3 Bb2 R1c4 Ra1 Bfd1 Ngf1 Be1 Rb1 Rc3+
r3kb1Q/nN3b1p/RNq2P1B/1bnN4/5NRp/4rr1N/2B4p/K2n1QR1 b - - 0 1 illegal: Other
4Nb2/rN3p1Q/1p1QQ3/4R1p1/nQBqn3/1bQb1rBK/5N1P/k1n2rR1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 e4 Kc5 d4+ Kd6 a4 g5 h6 c5 h7 c4 a5 b3 a6 c3 e5+ Ke7 a7 c2 d6+ Ke6 d5+ Kf5 e6 Ke5 e7 b6 e8N b2 d7 f3+ Kh3 f2 d6 Qf6 Bc4 f1R Qd2 Ne7 Qb4 Kd4 Bf4 c1N Nd2 b1B Ra5 Na6 Re5 Be4 Bg3 Nd5 Nb3+ Ke3 Na5 Nc3 Nb7 Na4 Qc3+ Nd3 Qb4 N6c5 Qc3 Rf5 d8Q Be6 Qb4 Kd4 d7 Nc1 Qc7 Bd3 d8Q+ Bd5 Qdc8 Rf1 Qe6 Ne4 Qbd6 Kc3 Qcc8 Rg8 h8Q Kb2 Qh7 Rg6 Qcc5 Ka1 Qb4 Qf2 Qc3+ Qb2 Qdb4 Rgf6 Qed6 Rd8 a8Q Rd7 Qc8 Rc7 Qce6 R6f3 Ne2 Rd7 Rg1 Rc7 Nf4 Rd7 Ba6 Bb3 Bc4 Rc7 Nd8 Ra7 Nb7 Bdc2 Nd3 Bb1 Nf2 Bd3 Qc2 Qd4 Qcc3+
2r1qq1n/kr3Qn1/2n2BR1/1B1NQ3/pNKb2P1/5N1b/1pRBpBB1/5b2 b - - 0 1 illegal: No proof kernel
2r2Q1B/2QbNnB1/rrR1N3/1q4q1/pRpb2pB/1R1knB2/1b1P3K/4B3 b - - 0 1 illegal: No possible last move, all moves rejected
Qr1b4/2Q1N3/1BR5/2N3p1/2pN4/N1qQR3/qPq1rnBp/k1rbnK1N b - - 0 1 illegal: No proof kernel
3BnK2/rqQR2Q1/5bbp/1B1b1p1Q/n4q1N/BpB1r1R1/P1kBqN2/8 b - - 0 1 illegal: No proof kernel
1r2B3/4N2N/Rq2bn1p/1R2pBrq/Kpb1Q1N1/1Q1Bb2k/1PN2N2/2n2r2 b - - 0 1 illegal: No proof kernel
4n3/4BnNb/1BKN2p1/QpprN3/RQ3N2/q3b3/2n1BPk1/b1qr1N1R b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 a4 Kh4 d4 b5 f6 c5 f7 e5 d6 g6 Kd5 b3 d7 b2 a5 e4 a6 e3 a7 g3 Qb3 g2 Nh3 g1Q Nd2 Bg7 f8N b1N Ne6 e2 Ra4 e1B Be2 Qg3 Nf1 Bf6 Ng7 Na6 Kc6 Nc7 d5+ Bd4 d6 Qdg5 d8B Be6 d7 Bd2 Be7 Nh6 d8N Bg8 Nb7 Rd8 a8Q Nf7 Bb2 Qe3 Bc3 Rh5 Ba5 Ne8 Qb4 Na3 Bb6 Nc2 Qaa5 Qd3 Bd6 Qge3 Nf4 Qa3 Be7+ Bf6 h3 Rd4 Nd6 Rhd5 Rg1 Qc1 Rh1 Qea3 Rg1 Be3 Rh1 Kg5 h4+ Kh6 h5 Kg5 h6 Rd1 Bc4 Kg4 h7 Kf3 Bd3 Ba1 h8N Nh6 Nhf7 Bh7 Nfh5 Kg2 Ne5 Nf7 Bc4 Qb3 Be2 Qba3 Nf4+
QQ2N2B/2N1KBR1/4bPBn/kp1qnr2/3p1Q2/r2p3q/4r1Rb/3b2BB b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 b5 Kd3 g5 Ke4 e5 Kd5 d6 c4 Kd7 a4 Kc7 f4 Kb6 h4 e4 c5+ Ka5 f6 d3 h6 g4 f7 b3 h7 g3 h5 g2 h6 b2 f5 Qb6 c6 Ra7 c7 Be7 f8Q Qf2 f6 Bg4 c8B Qb6 Nd2 b1B Nc4+ Kb4 a5 Bf5 a6 Bh3 Rh2 Bc2 Be6 Bb3 Ne2 g1Q Rg2 Bf5 Nf4 Ra8 a7 Qbf2 Qg4 Bd1 Be3 Qh4 Bf7 Qh3 Ne6 Nc6 Nc7 Qgh1 Bg1 Ne5 Qf4 e3 Qb8 Bd8 Be2 Bd7 Bf3 e2 B3h5 e1R Bhg6 Re2 Ra6 Bc8 Rb6 Be7 Rb7 Bf8 Nb6+ Ka5 Ne8 Be7 Rd7 Bd8 Re7 Bc7 Rd7 Qh4 Ke6 Qh5 Nd5 Q5h2 Nb4 d5 Na6 Bd6 Nac7 d4 Qf3 Qh3+ Qf5 Ne7 Qg4 Nf5 Qf4 Rg8 h8Q Rg7 h7 Nh6+ Bf5 Rg6 Qg8 Rg3 h8B Rg4 B5g6 Rg5+ Qg4 Rf5 Qf4 Bb4 Qf8 Be1 Kd6 Bg3 Ke7 Bh2 Qb7 Rb8 Qa8 Rb6 Qb8 Ra6 a8B Ra7 Rg5 Q1f3 Bb7 Qfh5 Bh1 Q5f3 Rg2 Qd5 Rd8 Be6 Rd7 Ra8 Qb6+ Ka4 Bg8 Re4 Ng7 Qa2 Kd6 Ra6 Qa8 Re3 Nge8 Re2 Rg7 Qd5+ Ke7 Kb4 Qbb8 Ra3 Qab7 Ka4 B8f7 Ka5 Q7a8+
q6N/n1n3Nr/rR1K1p2/1rB3kp/bQ6/qqQQN2P/1N1bR1p1/1NB5 b - - 0 1 illegal: No extended proof kernel
N1Q2b1N/1rQ1kq1n/B3P3/b1pq2N1/nBQ1pRp1/1bN2r2/7R/2K2Nr1 b - - 0 1 illegal: No proof kernel
B1BRq3/2Q1rN2/N2Pp1q1/Q3B1p1/4p3/1Kb2B1R/R1B1rbr1/1b2nn1k b - - 0 1 illegal: No proof kernel
NNkQ2N1/1n2K3/Q1pr1BQn/1rR1N3/1qp2q1n/br3B2/2b2pP1/4N2R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 f5 b4 h5 d4 a5 e4 h4 b6 h3 d5 h2 b5 c6 b7 a4 b6 a3 e5 a2 d6 Qf6 g6 Ra7 g7 Rh4 e6+ Kd8 d7 Qb2 Nd2 Rh5 Qc2 Ba3 Be2 Nh6 g8N Qb4 Bb2 Na6 b8N Nc5 b7 Rg5 Rb1 a1R e7+ Kc7 Rf1 Rb1 Bf6 Rb3+ Qd3 Rh5 e8Q Ra5 Qg6 Rb5 Re1 Rg5 Bd1 Rg4 Re7 Kd8 Na6 Rh4 b8N Nb7 Nc7 Rh5 Ke2 f3+ Ke3 f4+ Ke4 f2 Ngf3 f1Q Ne5 f3 Na8 f2 Bg4 Qc1 Bf3 Rd5 Qd4 Rd6 Qa7 Rf5 Qa6 Rg5 Rf1 h1N Kf4 Ng3 Rh1 Ngf5 Ke4 Rh5 Kf4 Rh2 Kg5 Rh3 Bh5 Rhe3 Ndf3 Nh4 Ne1 Rb1 Bf3 Qcd2 Bh8 Rb2 Re6 Reb3+ Kf6 Qe3 Nb6 Kc7 Ke7 Qf4 Bg7 Rbd2 Rf6 R2d5 Rf5 Rc5 Bf6 Rb5 Qa4 Nc5 d8Q+ Kb7 Rg5 Bf5 Na8 Bc2 Qb6+ Kc8 Qaa6+ Nb7 Nf7 Bb1 Rc5 Be4 Ne5 Bc2 Qd8+
2Rb1Q2/k1NK3B/n1pN1B2/1Bp3Bn/b2q3p/b2Q3r/BN2RP2/r3qn2 b - - 0 1 legal: proof: e4 b5 c4 g5 a4 f5 axb5 fxe4 h4 d6 c5 dxc5 hxg5 Bf5 Ra2 Be6 Ra1 Bc8 Ke2 Kd7 Ke3 e5 g4 h5 b4 a5 d4 a4 g6 h4 d5 a3 d6 c6 g7 a2 g5 Ra6 b6 Ra8 b5 Na6 g6 Rh7 b7 Nh6 b8Q Qb6 g8B Qa7 g7 Be7 b6 Bd8 b7 Qb6 Qd3 Qb2 Bd5 Ng8 Ne2 Nf6 g8B Re7 Nd2 Nh5 Nf4 Re6 Rb1 a1N Nc4 Nb3 Bh7 Nd2 Rg1 Qa1 Rg8 Rg6 Rb2 Rg3+ Ke2 e3 Ne6 e4 Nc7 Bg5 Ne8 Kd8 d7 Rh3 Qd6 Ra7 b8N Bb7 Ra2 Qd4 Qf8 Bc8 Ned6+ Kc7 Rh8 Bd8 Nb2 Kb6 Bb3 Ra8 Bf7 Ka7 Be6 Ba5 d8B Bd7 Bf6 Bd8 Bc4 Be6 Bb5 Bb3 Bg2 Ba4 Bf3 Nb4 Na6 Nf1 Nc7 Na6 Bg4 Bb3 Be6 Bc2 Ra3 Ba4 Ba2 Bc2 Rc3 Bb3 Rc2 Ba4 Ke1 e2 Bcg5 Nfg3 Kd2 e1B+ Kc1 Bb4 Re2 Ba3 Kd2 Qe5 Qc4 e3+ Kd3 Nf1 Qc2 Qg3 Ke4 Qg4+ Ke5 Qb4 Ke6 Qd4 Rd2 e2 Qd3 e1Q+ Kd7 Rc8 Re2 Rb8 Bbc4 Rb3 Bb5 Rc3 Qh6 Rc1 Rhe8 Ra1 Qf8 Be7 Rb8 Bd8 Rc8
1Q3KNb/qB3br1/Bp2pp2/1rN2QRk/nBPnb2r/R7/5N2/qN5N b - - 0 1 illegal: No possible last move, all moves rejected
3B4/2Bbn1Nb/1p1p1rBR/1PB3k1/NrRnq1q1/Q2Q4/2pK2b1/r2BQ3 b - - 0 1 illegal: No proof kernel
1QR2kN1/r2nnr1P/1pb2pq1/1N1Qb3/R1qq2Q1/B1Q2K1B/p3Nb2/2Q5 b - - 0 1 illegal: No possible last move, all moves rejected
1K4nB/1NRQ2np/Q5BP/3brb2/N3p2r/2Nr2p1/2q2q1R/1kbN1RN1 b - - 0 1 legal: proof: e4 b5 a4 f5 g4 d5 gxf5 dxe4 axb5 c5 b4 cxb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 d4 a5 c4+ Kd6 h4 b3 b6 e3 h5 g6 c5+ Kd5 c6 b2 c7 e2 h6 Kc4 Ke5 a4 f4 a3 d5 g5 d6 e6 f6 a2 b7 g4 f5 g3 f7 Ne7 d7 Na6 Kd6 e5 b8Q Nb4 f6 Nbd5 Nc3 b1B Qb6 Ra3 Bb2 Be4 Rc1 a1Q Rh2 Ra4 Qa6+ Kb4 Rc2 e1R Bd3 Kb3 Qd2 Qb1 Nd1 Bb7 c8N Ka2 Nb6 Nf4 Nd5 Bf5 Rc7 Ne6 Bd4+ Qc2 N5c3+ Ka1 Be4 Qa8 d8N Bd5 Nb7 Qa7 Kd7 Ng8 Kc8 Bd6 f8N Ba3 f7 Ng7+ Nd7 Bc1 f8R Re3 Rf7 Rd3 Rf6 Qc5 Kb8 Qb6 Nc5 Qbb2 Na2 Kb1 Rf8 Rc4 Na4 Qb6 Ba1 Qf2 Rf6 Bh3 Bg6 Rh4 Rf4 e4 Be5 Bf5 Ba1 Qb6 Rf1 Qbc5 Qf4 Q5f2 Qfd6 Nf6+ Qd8 Re8 Bb2 Re7 Qd7 Ng8 Bf6 Nh5 Bg7 Re5 Bh8 Ng7 N2c3+
1k1rQ2b/qBn4p/1nNP3R/1p5Q/2r2QK1/1R1N1p2/1r2Rq1B/1Q1b2Qn b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 a4 c5 d4 Kc7 e4 b5 g4 c4 a5 c3 g6 c2 g5 b3 g7 b2 e5 Ra7 e6 Nd7 d6+ Kb8 a6 Qa5 d5 Rc7 a7+ Kb7 a8Q+ Kb6 e7 Qe1 e8Q Qe6 g6 Ndf6 d7 Qe5 d8Q Nd7 d6 Qf6 Ra2 Ne7 g8Q Bg7 Nh3 Nd5 Qa4 Kb7 Nd2 b1R Nf2 N7b6 Rh6 Rb2 Bg2 Kb8 Nd3 Rc4 Nb3 Nc7 Na5 Qf7 Be3 c1Q Qg5 Qa1 Qh5 Bf6 Qg7 Rf8 Qg8 Bh8 g7 Qf6 Bg1 Qh4 Qe7 Rd8 Qb1 Be6 Bh2 Bf7 Qg4 Bh5 Qe2 Qf6 Qge8 Qf8 g8R Qf7 Kf2 f3 Kg3 f2 Bb7 f1N+ Kh4 f4 Qg1 Qf5 Rg3 Bg4 Re3 Ng3 Ra3 Qa2 Rb3 Nh1 Qf3 Qc5 Re2 Qf2+ Kg5 Qa1 Qh3 Qa3 Qhh5 Qa2 Re5 Bd1 Re2 f3 Kf5 Rc3 Qf4 Rcc2 Kg4 Qa4 Nc4 Qa7 Na5 Rc4 Nc6+
3nq1b1/3Q1r1p/pq1BbN1B/Q1R2n2/NBB2B1N/Kp2R1b1/2k1P3/3rn3 b - - 0 1 illegal: No proof kernel
q2Q2R1/1nN2Kp1/bBN2Rn1/3BR3/1qpk1q2/3N1p1Q/Nb1Pn2N/2r3r1 b - - 0 1 illegal: No possible last move
2Nb3B/3rq1p1/Q1B3PR/2p1BQ2/1BK2p1B/1Rb1Nrqn/1b2kN2/3r1n2 b - - 0 1 illegal: No proof kernel
Qnbq4/rq1nrp2/2QB4/3p3K/1B1QQ1np/1kN1N1bR/3R2QP/1R2b3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 d4 Kd7 d6 e6 d5 Qe7 e3 Bg7 Bc4 Qd8 Ba2 Bf8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Nd2 Ke5 Nb1 Ke6 Ke2 a5 Kf3 c5 Kg4 a4 b4 c4 e4 h6 b6 a3 b5 a2 e5 c3 b7 f3 b6 c2 Nd2 f2 Nc4 f1N Qd4 Qf6 d8R Ra6 d7 Bb4 Kh5 Be7 g4 Nd2 g5 Ra5 g6 Bc5 g7 Ra8 Rb1 a1Q Ne3 Nf3 Ba3 c1B Ne2 Bd2 Nc3 Bd6 Rhd1 Ra7 Bb4 Be1 Rd2 Qa6 Re8+ Qe7 d8Q Bc7 Rf8 Qd7 Qg5 Qd8 Qgf4 Kd7 e6+ Kc6 e7 Ne5 e8Q+ Ned7 Qfe4 Bcg3 Ne2 Kb5 Q8e6 Ka4 Qc6+ Qb5 Re8 Ne7 g8Q Nf5 Qgg4 Rg8 Qgf3 Rg6 Rh8 Re6 Qg2 Re7 Rh7 Nd6 Rh8 Nc4 Rh7 Nce5 Rh8 Na6 b8Q Ng4 Qba8 Nab8 b7 Qc7 Rbd1 Kb3 Nc3 Qd8 Rc1 Na6 b8B Qb7 Bf4 Nab8 Bfd6 Bh4 Rg8 Nge5 Rg3 Ng4 Rh3 Bhg3 Rf2 Be5 Kh4 h5 Kg5 h4 Rd2 Bf4+ Kh5 Bfg3 Rb1#
2q2b2/BN2p2r/3Q2B1/n2qP2Q/1b3k1p/n1N2R1q/1RR3p1/rQK1R1Rr b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 Kf7 c4 Ke6 b4 Ke5 e4 a5 f4+ Kf6 b6 h5 c5 d5 b7 d3 e5+ Kg6 c6 h4 f5+ Kg5 c7 a4 c8R d4 b5 a3 f6 a2 f7 Qd6 b6 Rh7 Nf3+ Kf4 g5 g1B g6 g2 g7 Ra6 Ng5 Nc6 b8Q Qg6 b7 Qf5 Nc3 Na5 Qh5 Qh3 Qd6 Nh6 b8R Ng4 g8Q Ne3 Rb2 Nc2 Qgg6 Na3 Nge4 Be3+ Kd1 d2 Rg1 Bf2 Nc5 Be1 Rab1 a1Q Nb7 Qa2 Ra1 Qae6 Qb1 Qef5 Rc6 Qc8 Bd3 Ra7 Bg6 Ra6 Rc2 Ra8 Rb6 Ra7 Bb2 Ra8 Ke2 d1R Rb4 Bd2 Rb6 Rf1 Rb3 Be1 Kd1 d3 Kc1 Ra6 Na2 Ra8 Bd4 Ra7 Nc3 d2+ Kb2 Ra8 Ba7 d1Q Rb6 Qdd3 Kc1 Qd5 Rbb2 Rf3 Nb5 Bb4 Re1 Rf1 Nc3 Rh1 Rg1 Bh6 f8R+ Kg3+ Rf4 Bf8 Rg4+ Kf3 Re4+ Kg3 Ree1 Kf4 Raa2 Nb5 Rb3 Na3 Rab2 Nc6 Bb8 Nb5 Ne4 Ra1 Ba7 Na3 Rg3 Na5 Nc3 Rg7 Rge3 Rh7 Rf3+
4nR2/1Q1npBQr/2bBBqp1/KBb4R/1n2p3/6r1/Q3PB1N/qqk4N b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h5 g4 hxg4 Qd5 Na6 Qb7 Nb8 Qe4 fxe4 Kd2 Kf7 Kc3 Kg6 Kb4 Kf5 c4 d5 f4 d4 h4 g6 h5 g3 h6 g2 b6 a6 c6 d3 b7 d2 h7 d1N c5 Nf2 c7 Nd7 b8Q Nd1 c6 Bg7 Be3 Nb6 Nf3 g1Q Nbd2 Qd7 Bh3+ Qg4 Nf1 Qe8 Ng3+ Ke6 f5+ Kd5 f6 Qh4 f7 Qf4 f8Q Bd4 Bd7 Nf6 Qg8+ Qf7 Rh5+ Qg5 b3 Nf2 Rf1 Ne8 Nh1 Bb7 c8B a5+ Kb5 a4 c7 a3 b4 a2 Nh2 Ke5 Qa7 Rb8 Ka5 Nd3 b5 Qb3 Rf8 Qb1 Bf2 a1Q+ Qa2 Bc5 Bc6 Qf5 Be6 Kf4 Bf7 Nd7 b6 Qff6 Ba4 Bc6 b7 Rg8 h8Q Rg7 Qg8 Rh7 Qa6 Bd6 Qg7 Bc5 Bb5 Ra8 b8B Nb4 Ka4 Ra7 Bg3+ Ke3 c8B Ne5 Bf5 Nd7 B5e6 Ra8 Bbd6 Ra7 Qa3+ Kd2 Qa2+ Kc1 Be1 Nb8 Bf2 Rd7 Be5 Rd3 Ka5 Rg3 Bd6 Nd7 Qb7
4bR2/N2P1n2/2Nr4/n2Q2qk/Nn2KRBr/2bppN2/1b1B1p1q/Q1Q3N1 b - - 0 1 illegal: No proof kernel
3B1Qr1/2bpBn1k/1R1NQ2N/3P4/Q4pNK/qrbN1b2/rqn3p1/3R3N b - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 exf4 gxh5 c6 b4 Qb6 Bg2 Qd4 b6 Rh7 b7 Qe5 b5 Qc7 b6 Rh8 Be4 Qd8 Bd3 Rh6 Bc4 Rh8 Bb5 cxb5 Kf2 f5 h4 Kf7 e4 g5 d4 Kg7 c4 a5 d5 b4 e5 b3 c5 b2 e6 g4 h6+ Kh7 h5 a4 e7 f3 Kg3 f4+ Kh4 g3 c6 g2 c7 f2 Nc3 f1R Ne4 b1Q Nf2 a3 Nf3 a2 Ne1 Ra7 Ned3 Nf6 e8N Ra4 Ba3 Rg8 Be7 Nc6 b8B Rh8 b7 Re4 Qa4 Qb5 Rb1 a1B Rg1 Qc5 Rb6 Nb4 Nh1 Rf2 Rd1 Nc2 Ba7 Qb4 b8Q Ba6 c8N Ng8 Qd6 Re3 Qe6 Bc3 Ncd6 Qa8 Bb8 Rfe2 Bc7 Qb2 Bcd8 Qa7 Ng7 Rf3 Ngf5 Bfg7 Ne3 Bge5 Ng4 Ref2 Ne1 Be2 Nd3 Rg3 Qa6 Bf3 Qa4 Rd2 Ndf2 Qb4 Bf6 Na3 Ne3 Bcd4 Neg4 Ra2 Ne8 Be2 Rc6 Bc7 Qa5 Nc2 Rb6 Qb2 Bfe7 Rb3 Nd3 Bc3 Nd6 Bf3 Qb5 Qaa3 Qa4 Nf6 Nc8 Rg8 Nd6 Kh8 h7 Kg7 h8N Rb4 Nhf7 Rb3 h6+ Kg6 h7 Kg7 Qe1 Ne4 Nfh6 Ng5 Qe3 Rf8 h8Q+ Kg6 Qf6+ Kh7 Qee6 Rg8 Qf8 Nf7 Qe1 Bb8 Qe3 Bc7 Qe6
8/2kpq1nN/B3PB2/b2n2qB/2b1BBq1/1pR1NQ2/3rrp1r/RK3Q1N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 g5 h4 b5 c4 f5 Kc2 f4 a4 g4 e4 f3 a5 g3 c5 g2 c6 f2 h6 Na6 h7 Ne7 h5 Ng6 c7 Bc5 h6 Bb6 e6 Bb7 c8B Ra7 e7 Bc7 e5 Nf4 Be2 Nc5 a6 Nce6 Rh3 Ng7 Nc3 d3+ Kb1 b3 Nd5 b2 Ne3 b4 Qf1 Bd5 Bh5+ Bf7 Ne2 g1Q Ng3 d2 Nh1 d1R Rg3 Rb7 a7 Ba5 a8B Nd5 Rf3 Ra7 Ba6 Rd2 B8b7 Qg4 Bc6 Nf4 Be4 Nd5 Rh3 Rc7 Rg3 Rcc2 Rh3 Rg8 h8Q Rf8 Qh7 Rh8 Qf5 Re2 h7 Rcd2 Qf3 Qg5 Ka2 b3+ Ka3 Rf8 h8B b1Q Rg3 Qd3 Rh3 Qc4 Rg3 Ne6 Bf6 Rh8 Rh3 Ng7 Rg3 Rd4 Bd2 Rh7 Kb2 Rh6 Kb1 Qa4 Bhg6 Rh2 Bh5 Qc4 Nd1 Qa4 Bf4 Rdd2 Ne3 Nc7 Bg4 Bc4 Rh3 Nd5 Rg3 Kf7 e8N Qe7 Bh5+ Kf8 Nd6 Qb4 Nf7 Ke8 Rh3 Qb6 Rg3 Qbe6 Rh3 Qef5 Rg3 Qgg4 Ng5+ Kd8 Nh7 Qfg5 Q3g2 Ne8 Nf5 Nec7 Rc3 Ne6 Qf3 Kc7 Ne3 Ng7 e6+
4Rb1K/2Qpr1Nn/2BP2bq/Q1n1RB1N/k1p1pQr1/6q1/5n1Q/1QrN4 b - - 0 1 illegal: No possible last move
2K1R1rQ/N1Bp3n/B1bp1R2/1nn1q2r/B1q4B/1Q3N2/Bb2k1Pp/5Q1q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 a4 exf4 axb5 Bg7 d4 Bh6 d5 Bf8 d6 cxd6 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Ke4 g6 f5 b6 h5 Kb5 a5 c4 f3 g7 f4 c5 a4 c6 f2 c7 h4 b7 a3 Kb6 h3 b5 f3 Bg5 h2 Nc3+ Ke5 e4 a2 Bh4 Kf4 e5 Ke3 e6 Rh7 e7 Nh6 e8Q+ Qe7 g8B Na6 b8B Bb7 c8B Ng4 Bc7 Bc6 Bfc4 f1Q Bb3 f2 Ba4 Qe6 Nf3 Qc4 Rf1 Nc5 Ba6 Qe5 Qb3 Bg7 Rae1+ Kd3 Qf8 a1N Re2 Re8 Ka7 Bh8 b6 Nf6 b7 Rh5 b8Q Nh7 Bd5 Nc2 Nb5+ Qcc3 Qd8 Na3 Kb8 Bg7 Qf7 Rg8 Na7+ Nb5 Kc8 Bf6 Qa3 Bh8 Ba2 Bf6 Qab3 Bg7 Rfe1 f1Q Rf2 Qh1 Qff8 Qf6 Re8 Qe5 Rf1 Ke2 Qf4 Qc4 Qdf6 Bh6 Qc1 Bd2 Qh8 Bc3 Rf2+ Kd3 Qf1+ Ke3 Qc2 Bb2 Qb3+ Qc3 Ng5 Qd3 Rf7 Kd2 Rf6 Qc4 Qb1 Ke2 Nf3 Be4 Qc1 Bc6 Qf1+
1q2bBr1/rR1p1Bqp/3Qnn1b/R1NQqk1P/R2rR1p1/1K6/2BR4/4N3 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 g4 fxg4 a4 e5 axb5 exd4 Kd2 Ke7 e4 Kf6 f4 g5 c4 a5 Kc2 d3+ Kb3 g3 h4 g4 c6 g2 h5 d2 c5 Bd6 f5 Qe8 b6 Bg3 b7 Bc7 e5+ Kg5 e6 Nf6 e7 Bf4 c7 Be5 c6 Bf4 Ra4 Qd8 e8B Bg3 Bd3 Be1 Bf7 Re8 Ba3 Ra7 Nc3 Na6 b8R Rg8 Bf8 Bb7 c8R Nc7 Bc2 Ne6 c7 Be4 Rb7 Bg3 Rh2 Bf4 Qf3 d1R Ra8 Qb8 c8R Rd4 Rcc4 Bd3 Qd5 Bd2 Nge2 g1Q Nf4 Qe1 Ng2 Qee5 Ne1 Kf4 Ne4 Be3 Nc5 Bd2 Rab4 a4+ Ka2 a3 Kb3 a2 Ra4 Be3 Rd2 a1Q Ra5 Ne4 f6 Kf5 Be8 Bh6 f7 Nf6 Rca4 Qd6 Rc8 Qb8 Rc6 Kg5 Rcb6 Bg6 Rbb4 Rf4 Re4 Kf5 Bg7 Qd4 f8Q Qa1 Qfd6 Bf7 Rd3 Bg6 Bf8 Bf7 Ree3 Rd4 Re4 Rc4 Q5c6 Qg3 Ree3 Ne4 Bb1 Qg7 Qcd5+ Q3e5 Bc2 Nf6 Re4 Rd4 Rd2 Bg6 Bf7 Rh8 Bg8 Be8 Bf7 Rg8 Rh2 Bg5 Rhe2 Bh6 Rd2
kB2b1Bn/2p3QR/1NB1pR1N/pPR1q1q1/3br3/2R3r1/1RQ1b3/1K1n1q2 b - - 0 1 illegal: No possible last move
B1b3KB/1qp1BB1p/1nr3k1/3B1b1n/1N1r4/qRn2p2/QNPQR3/1Q5b b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 a4 exd4 axb5 Na6 g5 Be7 g6 Bg5 hxg5 Nb8 Kd2 f5 Kd3 d5 b4 a5 e4 f3 b6 f4 g7 Kf7 e5 f2 g6+ Ke6 b5 Kf5 e6 f3 b7 a4 b6 a3 e7 a2 e8B Na6 b8Q Nf6 g8Q Qd6 g7 Qc5 b7 Be6 Ne2 Bd7 Bh3+ Ng4 Rh2 f1B Na3 Qb4 Bg5 Bg2 Be7 Bh1 Nc3 Bc8 Rb1 a1Q Nc4 Qaa3 Bc6 Kg6 Qd2 Nf6 Nb2 Nh5 Re2 Qb6 Be6 Ra7 Qa8 Nb8 Qf8 Qbb3 g8B Nd7 b8B Ra6 Ba7 Qb7 Bac5 Nb6 Bf6 Ra5 Bce7 Rc5 Qa4 Rc4 Qb3 Rc5 Na2 Rc4 Qd8 Rc5 Qd1 Rc4 Nb4 Rc5 Kd2 d3 Ke3 d4+ Ke4 d2 Qa2 d3 Qd6 Rc4+ Ke5 Rc3 Qc1 d1B Bed5 d2 Bge6 Rd8 Bh8 Qba7 Ba8 Rc6 N2d3 Qb8 Rb3 Qb7 Qcb1 Rd7 Nb2 Rd8 Rf2 Be2 Qd7 Bd3 Re2 d1N Qd6 Nf4 Qd7 Nc3 Qd6 Kh5 Kf6 Bf5 Kg7 Rd7 Kf8 Kg6 Kg8 Nh5 Qf4 Rdd6 Qd2 Rd7 Bc4 Rd3 Bcd5 Rd4 Bf7#
Q3q2N/1PkQB2B/1pn1r1B1/p4Kn1/1bp1r3/1RqQqbBN/6nB/5R2 b - - 0 1 illegal: No possible last move
5r1B/Kp4n1/QB5q/1N3nb1/3pRBBN/Q4p2/RB1bP2r/q1Qn1b1k b - - 0 1 illegal: No proof kernel
2N2Nq1/p1R4n/4Rrp1/Bb1B1r1b/1p2r3/B2P3k/5B2/QnQBqQbK b - - 0 1 illegal: No proof kernel
n1K1Q3/p4Bkb/1P1q1nq1/R3prQB/1p2NbR1/BB4N1/q4r2/1BRr4 b - - 0 1 illegal: No proof kernel
3Q1n1Q/p1br1p1r/kB1RRP2/4n2B/3r4/n2B4/N1Bp2Kb/2qRq1NB b - - 0 1 legal: proof: e4 b5 d4 c5 h4 d5 a4 bxa4 Ra3 g5 hxg5 Be6 Ra1 cxd4 Be3 d3 Bf4 d4 Bc1 Bd5 exd5 Qd6 Be2 Qd7 Bf1 Qd8 g4 Kd7 c4 Kc7 f4 Kb7 Kf2 h5 b4 e5 g6 e4 c5 h4 f5 h3 d6 h2 b5 e3+ Kg2 e2 d7 e1R b6 d2 g7 a3 f6 a2 g5 d3 g6 Re5 c6+ Ka6 c7 Rb5 b7 Ne7 g8B Rb4 c8B Qe8 d8R Nec6 g7 Qe1 Nc3 Nd7 Be2 Rh7 Bh5 Nce5 b8Q+ Rb7 Re8 Bd6 Re6 Nf8 Rb1 a1B Na2 Bd4 Bb2 Bf2 Bd4 Bg3 Bb6 Bc7 Rc1 Bf4 Rcc6 Bg3 Rcd6 Bf4 Qg4 d1N Qh4 d2 Bd7 Bg3 Bc6 Nc3 Qd8 Nb5 Bcf3 Na3 Be4 Rh8 Bgh7 Rc8 B7g6 Rh7 g8B Ra8 Bc2 Rc8 Bge4 Qc1 Qe7 Rd8 Qh3 Rd7 Qd8 Rb8 Nf3 Bf4 Rd1 Bg3 Ng1 h1Q+ Kf1 Bh2 Qh4 Rg7 Bgh7 Rb7 Bhf5 Rh7 Bd5 Qe4 Kf2 Qe1+ Kg2 Bb8 Bdf3 Rbc7 Bfd3+ Rc4 Kh3 Bc7 Bh1 Nb5 Kg2 Rd4 Qg4 Qb2 Qg8 Qc1 Bf5 Na3 Qh8 Qh4 Bfe4 Qe1 Bed3+
1kBN3B/1r1q4/K3N3/brN1pr1r/2n1P3/1Qp3pR/r3nRN1/1bBQN3 b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 Ra2 Kd7 e4 e5 Ke2 h5 Kd3 g5 Kc4 c5 d6 a5 f4 h4 d4 h2 b4 h3 d5 Ra7 f5 a4 f6 g4 b6 a3 Kb5 c4 b7 Nh6 f7 Nf5 Rf2 a2 Na3 a1R Nc2 Ne3 Ne2 R1a2 Ne1 Nc6 b8Q Qe8 Kb6 Nd4 b5 Qe7 Rf6 Rg8 Nf4 Rg5 Be2 Ba6 Nfg2 Bh6 f8B Qe8 Bd3 Ne2 Rf2 Rf5 Bg7 Nd4 Rg1 h1R Qb7+ Kd8 d7 Ne2 Bh8 Qf7 Qc6 Rc7 Qc5 Bf8 Qa3 Bb4 Qb2 Rh2 Rh1 Qh7 Rhf1 Rc5 Qbb3 c3 Rg1 Qg7 Rh1 Ba5+ Ka7 Qe7 b6 Qe6 Ba3 Bb5 Bb2 Ba6 b7 Kc7 b8N Rg5 Bb1 Bd3 Bc1 Rg7 Bc2 g3 Na6+ Kd6 Qc4 Rb5 Nc5 Kc7 Bb3 Bb1 Qa4 Qg4 Ka6 Kb8 d6 Qf5 Bd5 Nc4 Bb7 Re7 Bc8 Rh7 d8N Rhb7 d7 Qf7 Nde6 Qe7 d8N Qd7 Rg1 Rh1 Qab3 h2 Rgf1 Rg1 Rf8 h1R R8f4 Rh5 Rh4 Rf5 Rf2 Rh1 Rhf4 Rh6 Rh4 Rhh5 Rh3
4B2b/qn2n3/bP2Nrp1/R2p2bN/RN1NQ3/2rRB3/1bQ1p3/kN3b1K b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 f4 Kf6 Kf2 d5 Kg2 e5 c4 a5 b4 a4 b6 a3 c5 g6 h5 g3 c6 e4 b7 e3 h6 d3 b5 a2 h7 d2 b6 Qe7 c7 Qg7 Bb5 e2 Nh3 Nc6 b8N Be7 Na6 Na5 Nb4 Ba6 c8Q Nb7 Qc4 Rf8 Qdc2 d1B Q4e4 Qf7 Kg1 g2 Be8 Qg7 Kh2 g1B+ Kg2 Bd4 Be3 Bc3 Rg1 Bb2 Kh1 Bd8 Rg4 Ne7 Rg3 Rhg8 h8R Rf7 Rh4 Rh8 Qcc4 Ba4 Qcc2 Bd7 Rhg4 Qh7 Rf3 Kg7 Rfg3 Rf6 Rf3 Rhf8 Rh4 Rc6 Rg4 Rc3 f6+ Kh8 f7 Kg7 f5 Kf6 Rh4 Bc8 Nf4 Qg7 Qed3 Ke5 f6 Bh3 Nh5 Bf1 Rd4 Kd6 Qf5 Kc5 Rd3+ Kc4 Rf2 Rg8 f8N Qh7 Ne6 Rf8 f7 Qg7 Qc1 Kb3 Qe4 Qh7 Rf4 Qg7 Nd2+ Ka3 Qc2 Qh7 Rd1 a1B Nd4 Qg7 Nbc6 Ka2 Nb1 Nc8 Rg4 Bg5 Rc1 Ne7 Rh4 Rh8 f8N Qh7 Nfe6 Rf8 Rcd1 Rf6 Qc1 Ba3 Qc2+ B1b2 Re1 Ka1 Rf4 Bd6 Nb4 Be5 Na2 Nc5 Nb5 Rf8 Qd4 Nc8 Rc1 Rb3 Qd2 Qf7 Rc4 Qa7 Qc2 Nb7 Rc5 Bh8 Qe5 Bh6 Ra4 Ne7 Nbd4 Rf6 Qe4 Rc3 Rca5 Bg5 Nb4+
n4BR1/p6Q/2kQQ3/1rnp1nnP/2p1Nbr1/1n1b2N1/1q3RKN/1B2NN2 b - - 0 1 illegal: No possible last move, all moves rejected
BbnnQ2B/3r1B2/2bq4/3QRK2/2np1PBB/5R2/b1ppb3/r1kR1NN1 b - - 0 1 illegal: No possible last move, all moves rejected
2bnBK2/1R2Q1n1/Qb6/1rr1npr1/kN2P2Q/N1p1N3/pB2Q3/q1n1R1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
4N1bB/1N4B1/1kB2NRQ/3p1rbB/B2Kn1qp/Q1p1P3/8/nnrR1n1r b - - 0 1 illegal: No proof kernel
3r3R/nbn2QB1/Q2r2BP/3pQ1b1/2Nqp1B1/B1rN3B/4n2p/K1Rn2k1 b - - 0 1 illegal: No proof kernel
2b5/bQ1n4/1BB2qbp/Qrr1P1Np/1B3Q1p/Qn2k1Nn/5R1K/2R2b1Q b - - 0 1 illegal: Other
1Nr1R3/3RNRRb/B4p1b/1Q1p1b2/5PR1/kq1pQ1bK/1Nrn4/4nn1B b - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 e5 Bd2 e4 Bg2 e3 Kf1 exd2 Bh3 Nh6 Kg2 Nc6 Kf3 Ng8 Bf1 Nb8 Kg3 Rh6 Kg2 Rh8 f4 Ke7 h4 Kd6 c4 Kc5 b4+ Kd6 e4 g5 h6 a5 e5+ Ke6 c5 Kd5 b6 d6 b5 g4 h5 d3 e6 Kc4 h7 Kb4 b7 g3 b6 a4 e7 a3 e8R f6 c6 d5 h6 a2 c7 Bd6 Nf3 Nd7 b8Q Bf8 b7 Nb6 Rh4 Nc4 Nd4 Ne7 Nc3 Ka3 Na4 Nf5 Rg4 Nfe3+ Kh3 g2 Qe1 d1B Nf5 g1B Bg2 Nf1 Ne7 Bh2 Nb2 Bg3 Qe3 Bf5 c8B Ncd2 Bh1 Qb6 Rd8 Be2 Rd7 Bf3 Rc1 a1N Rcc7 Rg8 h8R Qb3 Rh7 Nc2 Rf7 Ne1 h7 B3e4 h8R Bh6 Rg7 Rd8 Re8 Ra7 Qa8 Bh7 b8N Bef5 Ba6 Rc8 Qc6 Rb7 Qb5 Rb6 Ng8 Rc6 Rdf7 Rc3 Rcd7 Rc2 Ne7
3BN1n1/Bk1n3K/1Rp2N2/1rP1b1R1/4rNpQ/3prn2/n5B1/qBQBb3 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 e5 axb5 exd4 h3 Bb7 h4 Be4 h5 Bg6 hxg6 f5 Ra2 fxg4 Ra4 Nc6 Ra1 Nb8 Kd2 a5 Kd3 h5 Ke4 d5+ Kf5 Kd7 e4 Kc8 f4 g3 c4 g4 b4 h4 g7 g2 Kg6 a4 e5 c6 e6 d3 e7 d2 e8B d4 c5 a3 f5 a2 f6 h3 b6 h2 b5 Rh4 b7+ Kc7 f7 Nf6 g8B Nfd7 Nc3 Qe7 b6+ Kd8 Nh3 g1N Bg2 Ra5 Ne4 Rh7 Nf4 Qe5 Nd6 Bh6 f8Q Rb5 Qf6+ Re7 Qh4 Nf3 Bb3 Nf6 Bb2 Bg7 Qc1 Ng8 Bd1 Nd7 b8B d3 b7 Qd4 Ba7 Kc7 b8N Re3 Kh7 Be5 Bf7 Re4 Rf1 h1R Ne8+ Kb7 Bfb3 Rh3 Bbc2 Qc3 Bb1 Qa3 Bc3 Qb2 Ba5 Qc3 Be2 d1N Bd8 Qd4 Rh1 Nc3 Bd1 Qg1 Nh5 Bg3 Nf4 Be1 Rh2 Nfe5 Rh1 Rhe3 Rh3 Nf3 Rh2 Nde5 Nd7 Qf1 Ndf6 Nd7 Qg3 Qg1 Rh5 Qh1 Qh4 Qf1 Bbc2 Qg1 Rg5 Qf1 Rb1 a1B Rb2 Qg1 Bb1 Na2 Rb3 Be5 Ra3 Qf2 Ra5 Qb2 Ra6 Qa1 Rb6+
3qbBb1/1NB1B3/rP2p1pK/r1n1nRQR/1Q6/3r3N/1bR1p1Bk/1B4b1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Ke2 Kf7 h4 Ke6 b4 Kf5 c4 Kg4 f4 Kg3 f5 a5 c5 d5 h6 a4 c6 a3 h5 e3 f6 a2 h7 g6 b6 Be6 b5 Bf7 c7 Qc8 h6 Be6 f7 Nc6 b7 Bg7 b8B Bf8 b6 Bf5 Nd2 Qd8 c8B+ Ne5 Nb3 Nf6 Rh5 Ra5 Qd2 Nd7 Ba3 Nc5 Bc7 Bd7 Nh3 Bc6 Rc1 a1B Bg2 Be8 Qb4 Bb2 Bf5 Kh2 Rc2 Bg7 f8B d3+ Ke1 d2+ Ke2 Ra6 Na5 d1R Nb7 d4 Bfe4 Rg8 h8Q Rd3 h7 Bh6 Rf5 Rg7 Ke1 e2 Kf2 Rf7 Qf6 Be3+ Ke1 Rg7 h8R Bg1 Qh4 Rh7 Qg5 Rh5 Rh6 e6 Be7 Bf7 Bf8 Bg8 Be7 Rf3 Kd2 d3 Rh8 Rf2 Ke3 d2 Rh6 d1B Rh7 Rh4 Bd3 Rd4 Rh5 Rd7 Rc1 Rd6 Bb1 Ba4 Rc2 Be8 Bf8 Nf3 Kf4 Rd3 Qe7 Ne5+ Kg5 Rff3 Kh6 Rfe3 Qg5 Re4 Qbd2 Rea4 Qb4 R4a5 Qd4 Na4 Bae7 Nc5 Qb4
3RB1QR/rbn1PqQ1/5r1p/2p1rkNB/Bb1B2N1/4rp1b/5R1K/1n1B4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 a4 c5 g4 b5 Kg2 f5 e4 b3 d4 b4 a5 b2 g6 b3 g7 f3+ Kh2 f4 g5 f2 a6 f3 a7 Qa5 g6 Be7 e5 Bb7 d6 Ke6 d5+ Kf5 d7 Bd6 d8R Kg4 Nc3 b1R Nh3 b2 Be2 f1B Qd4+ Kf5 Ng5 Qa4 Nce4 Nf6 g8B Qd1 g7 Qd2 Bf7 Qa5 g8B Qa6 Be3 Bc7 d6 Qa2 e6 Nd5 e7 Na6 Bd1 Ba5 d7 Nac7 Be8 Nc3 Nf6 Qf7 Ra2 Bb4 Ng4 Bh3 Qg7 Rc1 Bd4 b1R Rf2 Rb3 Be3 Ra1 Bd4 Rc8 a8B Ra7 Re2 Nb1 Rf2 Bd5 Bb7 Re3 Bc6 Be4 Bb5 Bb7 Bba4 Rca8 Rb8 Ra6 d8Q R8a7 Ra8 Rae6 Qd5+ R6e5 Rd8 Qe6 Bgf7 Rf8 Bh5 Rf6 Qc4 Qg8 Re1 Qf8 Qcg8 Qf7 Ree2 h6 Rb2 Ba5 Rb6 Bb4 Rc6 Na8 Rcc8 Nc7 Q8h7+ Rg6 Rd5 Bf1 Bed7+ Ne6 Rh8 Bh3 Qhg8 Rf6 Be8 Nc7 Rd8
2n2b1q/3Np2k/2BQ1QNN/1n1K1b1n/2R3nB/2p5/1bR1RPrp/N3Nr2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg7 Kd4 a5 g4 h5 b4 c6 d6 h3 b6 c5+ Kd5 a4 d4 a3 d7 h4 g5 c4 b7 h2 b5 h3 g6 c3 b6 a2 Nf3 e3 Nbd2 e2 Bg2 e1N Nb3 Qc7 d8Q Nc2 Bg5 Qg3 Qd6 Ra3 Re1 h1N Re2 h2 Bh4 Kh6 g7+ Qg6 Rc1 a1B Ne1 Rh7 Qf6 Bb2 Na1 Nd7 b8R Rh8 b7 Kh7 Qd2 Nh6 g8N Ng4 Nh6 Ra6 Qd3 Na3 Rcc2 Ra7 Qg3 Ra4 Qgd6 Rg8 Ra8 Ra7 b8N Ng3 Bf3 Rb7 Ra4 Qg7 Rc4 Nh5 Bg2 Qh8 Bh1 Nde5 Nd7 Nb5 Ke4 Nc6 Nc5 Nf4 d5 Nh5 Qdf4 Na3 Nf3 Na7 Kd4 Bf5 d6 Nc8 d7 Ne5 d8N Rg1 Nde6 Bc1 Nd7 Ng4 Qd6 Rb1 Nf4 Bb2 Ng6 Rbf1 Ne1 Nb5+ Kc5 Rg3 Bc6 Rg2 Kd5
1R3n2/rbkp3R/1bQ1RB1r/3PRr2/qpN3Q1/N3p2N/2B4b/RK1nr3 b - - 0 1 legal: proof: e4 b5 a4 g5 h4 f5 exf5 gxh4 axb5 c5 b4 cxb4 d4 h5 Kd2 e5 g4 a5 c4 h3 Kc2 h4 f4 h2 f6 h3 d5 a4 c5 e4 b6 e3 b7 a3 f7+ Ke7 c6 Kd6 f5 a2 g5 Bh6 f8R Kc7 g6 Ne7 g7 Kb6 g8R Bf4 c7 Rh5 f6 Nbc6 b8R+ Bb7 c8N+ Kc7 f7 Ng6 Qg4 Na5 Nd6 Rf5 Na3 Nc4 Bd3 Nb2 Re8 Nf8 Re5 Nd1 Ndc4 Ra7 Bb2 Qf6 Rg7 Qa6 Rg6 Qa4+ Kc1 Bg3 Bc2 Bf4 Rge6 Bg3 Rb1 a1B Bd4 Bc3 Ra1 Bf4 Kb1 Bg3 Bc5 Bd4 Be7 Bb6 Bf6 Bf4 Nf3 Bg3 Ng5 Bf4 Rf1 h1R Rf3 h2 Rh3 Ra8 Rh7 Re1 Nh3 h1R Ra2 Ng6 f8Q Ra7 Ra1 Bh2 Qe7 Nf8 Qc5+ Bc6 Qb5 Bb7 Qh4 Rhg1 Qf4 Rg6 Qg4 Rh6 Qc6+
BQ1QQ3/rNRpr1Qk/3n2r1/1q1Pnb2/1pRBp2K/7Q/1bN2r2/3b3N b - - 0 1 legal: proof: e4 b5 a4 g5 h4 f5 exf5 gxh4 axb5 c5 b4 cxb4 d4 Kf7 f4 Kg7 Kf2 h5 c4 a5 g4 e5 f6+ Kh7 c5 a4 b6 a3 b7 h3 Kg3 h2 f5 a2 f7 Ra7 c6 Bg7 f8Q Ra8 g5 Bf6 c7 Ra7 Bg2 Ra4 Qf1 Nc6 b8Q Nh6 Bb2 Bg7 f6 Ra7 f7 Ba6 c8N Qa5 Nh3 Qb5 Nd6 Rg8 Nf2 h4+ Kh3 Bf6 Na3 Rg6 Qfe8 Nf5 Rc1 a1R f8Q Ra2 Nb7 Nd6 Nc2 Bg7 Kg4 h3 Kh4 Bh8 Rg1 h1R Qd3 h2 Qh3 Bg7 Qf6 Bh8 Qfd8 Bg7 Rgd1 Re1 Nh1 Re2 Rf1 Rf2 Ba1 Ra3 Rfd1 Re3 Rd3 Re1 Rc3 Bh8 Rc4 Bg7 Ng3 h1B Be4 Bf3 Nh1 Bd1 Bd5 Re6 Bc3 Re7 Bf3 Rg1 g6+ Kh6 Bd5 e4 Bb2 Ne5 Ba1 Bh8 g7 Rg6 g8Q Bg7 Qgf8 Kh7 Bc6 Bg4 d5 Bf5 Bd4 Ng4 Bc5 Bb2 Bd4 Ne5 Na5 Qc5 Ba8 Qb6 Rc7 Be2 Nb7 Bd1 Na3 Ng4 R1c4 Qb5 Nc2 Ne5 Qg7+
NbQ1b3/rp3n1R/2Q5/pB1rk1Qn/1RP5/1K1nn1qQ/Q1rp1B2/3NB3 b - - 0 1 illegal: No proof kernel
4r1n1/1p1K1R2/2p1B1bb/2bQN3/r1rqN3/B1RPQN1k/1bQn1p2/3N3N b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Ke7 Kg3 g5 a4 f5 e4 c6 h4 b3 h5 b2 h6 Qd7 d3 Rh7 a5 Qe6 a6 Nf6 d6+ Kd7 a7 Ne8 Nf3 Be7 Bh3 Qf7 Qc2 Ke6 d7 Rh8 d8Q Bf8 h7 Qd7 Nc3 b1R Nd1 Na6 Ba3 Qd4 Rf1 Rb4 Rc1 Bh6 Rf2 Rg8 h8N Rc4 Ng6 Nf6 Ngh4 Nc5 Qd5+ Ke7 e6 Re8 Ne5 Ng8 Nhf3 Kf6 e7 Nb3 Rf1 Be6 Nf2 Nd2 Nh1 Bf7 Rf2 Rab8 a8N Bg6 Nc7 Ra8 Nb5 Raa4 Nc3 f4+ Kh2 Rd8 e8Q g3+ Kg2 Rc8 Be6 g4 Nd1 Rb8 Qb2 Rba8 Rc3 Rc8 Qc2 Rb8 Kg1 g2 Kh2 g3+ Kh3 g1B Kh4 g2 Kg4 Qb6 Rf1 Bc5 Rf2 g1B Rf1 Bgd4 Rf2 Bf7 Qe7+ Kg7 Kf5 Re8 Qg5+ Kh7 Qg1 Qb4 Qe1 Bh5 Qe3 Bg6+ Kg4 Bg7 Ng5+ Kh6 Bc8 f3 Rb3 Ra8 Nd7 Ra5 e5 Ra6 e6 Rf8 e7 Qb5 e8N Raa4 Nef6 Re8 Nfe4 Bc3 Kf4 Kh5 Ne5 Kh4 Rf1 Bh6 Bg4 Bb2 Rc3 Qb6 Bh3 Bd6 Bd7 Bf7 Kf5 Qd4 Bc8 Bh5 Rf2 Be7 Ke6 Bg6 Rf1 Bf6+ Kd6 Be7+ Kc7 Bef8 Be6 Bc5 Kd7 Bc1 Rg1 Bb2 Rg3 f2 Rf3 Bg7 Rf5 Bh6 Ngf3+ Kh3 Rf7+
r1Qb4/1p1p1P2/r1NN1q2/R2B1QR1/KBrRb1p1/1n1R2Rb/k5n1/5Nr1 b - - 0 1 illegal: No proof kernel forced: wxLB
NQn1R1Q1/p1nQ4/1pq1B3/brB1rR1n/bPB1Bb1K/4N3/4B2p/nk6 b - - 0 1 legal: proof: f4 e5 a4 exf4 c4 g5 h4 d5 cxd5 Na6 a5 Nb4 a6 Nxa6 hxg5 Nb4 Ra5 Na2 Ra4 Nc3 Ra1 Na2 Kf2 Kd7 g4 Kd6 e4 Kc5 d4+ Kb4 e5 f5 g6 h5 e6 c5 g7 b6 d6 f3 Kg3 f2 d7 c4 e7 c3 e8B c2 d5 Kb3 g5 f4+ Kh4 f3 d6 Nb4 Bg6 Ne7 g8B+ Nbd5 Ne2 Qe8 d8Q Qc6 Ra5 Bd7 Na3 Ka2 Ng3 Nc8 Be3 c1B Bc5 Bf4 Be2 f1N Be4 f2 g6 Nd2 g7 f1N Be6 Nb3 g8B Na1 Nf5 Ng3 Ne3 Bg7 b3 Nc7 Re1 Bc3 Nb5+ Kb2 Bgf7 Rg8 B6c4 Rg5 Bfe6 Be8 d7 Bd2 Ra3 Ba5 b4 Rf5 Qg5 Rb8 d8Q Rb7 Kh3 h4 Q1d7 Nh5 Qg8 Rd5 Kg4 h3 Kh4 h2 Rf1 Rg5 Rd3 Rb8 Rf3 Kb1 Rf2 Na6 Nc7 Re5 Na8 Nc7 Be7 Rb5 Bc5 Nd5 Q8c7 Rb7 Qb8 Rc7 Qd6 Re7 Qd7 Nc7 Rd5+ Kc1 Rf5 Kb2 B6d5 Re5 Be6 Kc1 Bg2 Kb1 Rf8 Bg6 Re8 Bc2 Bh1 Ba4 Bhd5 Bh6 Rf5 Bf4 Be4+
1RNrr1Bk/p4R2/P1R3r1/QK1npp1Q/1b2n1N1/4q1R1/3B1R2/3bN1rb b - - 0 1 legal: proof: g4 c5 e4 d5 b4 dxe4 bxc5 h5 f3 exf3 gxh5 Be6 Bb2 Bh3 Bc1 Bc8 d4 g5 Kd2 b5 Kc3 e5 Kb4 f5 a4 Kf7 c4 Kg7 h4 f2 d5 g4 a5 g3 h6+ Kh7 h5 g2 a6 Qf6 d6 Qe6 d7 Bd6 d8Q Bc7 c6 Qd5 c5 Be6 Nf3 g1R Ra3 Nf6 Nc3 Ng8 Ne1 Qd4+ Bc4 f1R Rh2 Bb6 c7 Qf4 c8R Rg4 c6 Qe3 c7 Rfg1 Nd5 Rg6 Bd2 Nd7 Rf2 Ne7 Bb3 Rf8 Nf6+ Kh8 h7 Re8 Ng4 Nf6 Rb8 Bd4 c8N Ne4 Qa5 Bd5 Rb6 Bb7 Bg8 Ba1 Rc6 Bc3+ Kb3 b4 Kc4 b3 Kb5 b2 Qe2 Kg7 h8R b1B Rb3 Bc2 h6+ Kf8 h7 Kg7 Qf3 Bd1 Qh3 Bb4 Qh5 Nd5 Rbc3 Qh3 Rg3 Rb8 Bf7 Ra8 Rf8 Rd8 Bg8 Kh8 Rf7 Rb8 Rgg2 Qe3 Rg3 Re8 Ne7 Rbd8 Nc8 Ba8 Rcf6 Nc7+ Kc4 Nc5 Rd7 Bh1 Rc6 Nd5 Kb5 Ne4 Re7 Rgd6 Rb7 Rg6 Rb8 Kg7 h8R Rge6 Rh6 Red6 Rf6 Rde6 Qg6+ Kh8 Rf7 Rf6 Qg5 Rg6 Qh5+
4k2n/1KQ2N2/nb1BR2R/r1NB1b2/P3pRN1/1Rp1R3/q1bp1q1b/1r1Q4 b - - 0 1 illegal: No proof kernel
2Q1BQ2/1bq5/k1B5/2qB1K1b/pN3n2/ppP1B2N/bbr3n1/1R1rR1BR b - - 0 1 illegal: No proof kernel
2Rb2n1/b1q2bNr/R1RQR2Q/r1p1q1P1/N1K1p1B1/1p1R2B1/6Bn/k6b b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kf7 g4 c5 f4 e5 a4 h5 d4 b5 d6 Ke6 g6 Kd5 a5 Kc4 g5 e3 d7 h4 a6 b3 a7 h3 g7 b2 f5 b4 d5 b3 f6 h2 d6 Bb7 f7 Qc8 d8R Nh6 g8B Bg2 d7 Nc6 Nf3 Be7 Re8 Bd8 Re6 Ng4 f8Q Qc7 Qh6 Ne7 Nd4 Bd5 Nc3 b1Q Nf5 Qe4 Ng7 Rh7 Raa6 Qf4 Na4 e4 Bg2 Qfe5 Rec6 Kb4 Be6 Ng8 Bd2+ Ka3 Be1 Ka2 Bg3 Bc4+ Ke1 e2 Qd6 Bd5 Kd2 Bc4 Rf1 h1B Rf6 Nh2 Bg4 Ka1 Rg6 Bf7 Re6 Qd5+ Kc3 Qe5+ Kc4 e1B B2h3 Ba5 Bg2 Bf6 d8R Bb6 Qd2 Be7 Rd3 Bd8 Qf4 Rb8 a8R Ba7 Qd2 Rb5 Rc8 Ra5 Qf4 Bg6 Qf8 Bf7 Qd6
1B2Rn1b/6b1/kq1Qp1B1/pp1b2PK/8/Q2r1rN1/Q2RBNqQ/Q1b3n1 b - - 0 1 illegal: No proof kernel
1kr1r1b1/2B4R/n2p1Nr1/Qp2P3/rB4pn/1BKNq1b1/Q3B1R1/3N2qB b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 f5 e4 b5 c4 g5 a4 f4 h4 f3 a5 b3 c5 g4 c6 b2 h6 d3 h7 f2 c7 Bb4+ Nc3 b1Q h5 Qb3 h6 Ke7 a6 Qf7 e6 Kd6 e7 Bc5 e8N+ Kc6 a7 Kb7 Ra2 Bb6 Be2 f1R Nf6 Qdf8 Qb3 Q8e7 Nh3 Rf5 Ba3 Re5 Nd1 Bf2 Bb4 Na6 Kc3 d2 Nf4 Bg3 Nd3 Qee6 Qa3 Ne7 Qa5 Nf5 Rh5 Rg8 h8Q Rg6 h7 Nh4 Qg8 d6 h8B Qee7 Rh7 Be6 Bg7 Rc8 a8B+ Ka7 Bf8 Qee8 Be7 Qg7 Rc2 Qh6 Bd5 Qe3 Bd8 Qg1 Bb3 Qe7 Qg7 Bg8 Qf7 Qd7 Qc4 Re8 e5 Qf5 Qe6 Qff2 Ra2 Qe3 Qf7 Ra8 c8B+ Kb8 Bb7 Ra7 Bh1 Ra8 Nb2 d1R Qd5 Rb1 Nd1 Ra1 Rb2 Ra4 Bc7+ Ka7 Bf1 Rad8 Rg2 Rc8 Be2 Bf4 Bc2 Bg3 Qa2 Bc4 Bd8+ Kb8 Bb3 Bg8+ Bc7+
3B1R2/q1n2n2/1RpN1QK1/Q1qN1pnB/r3p3/r5bb/R2RP1kR/2Q4n b - - 0 1 illegal: No possible last move
1N5n/nkQBQNNp/1B1K4/3P2Rq/1p5q/3Q1pnN/Rr6/bn1r1N1b b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 a4 c5 d4 Kc7 e4 b5 g4 c4 a5 c3 g6 c2 g5 b3 g7 b4 d6+ Kb7 d5 b2 e5 Ra7 g6 Nd7 a6+ Kb8 e6 Nb6 d7 Ra8 a7+ Kb7 e7 Na4 e8N Nh6 g8N Qh4 d8Q Bd6 g7 Nb6 Nd2 b1N Nh3 Nf7 Bb5 Be5 Ra2 Ba1 Nh6 Rg8 Rg1 Nh8 Rg5 Be6 Qf1 Nc8 Bd7 Bf7 Qd1 Bg6 Qe7 Rf8 Bb2 c1Q g8N Qc7 Qde2 Qe5 Bd4 Rf6 Qd1 Rc6 Bg1 Rc2 Bb6 Rb2 Ng7 Bh5+ Kg2 Be2 Nf7 Bf3+ Kh2 Bh1 Nf6 Rb8 Qc2 Ra8 Qd3 f3+ Rg3 f4 Rg5 f2 Nf1 f3+ Rg3 Qc3 Rg5 Qh6 Kg3 Qh5 Kf4 Qc4+ Ke5 Qch4 Ke6 Nd6 Ke5 Nb5 Ke6 Nd4+ Kd6 Nc6 Nfe8 Rc8 Nc7 Re8 Na6 Ra8 Ne3 f1N Nb8 Ng3 Nf1 Ne5 Nc6 Rc8 Nb8 Rc1 Ra3 Nc6 Ra2 Rd1 Be3 Qd4 a8Q+ Kb6 Qa5+ Kb7 Bf2 Qdh4 Bb6 Na7 Qc5 Rf2 Qcc3 Rb2 Qc7+
2k2N2/4BQ1p/1R1Qn1qB/1qBp4/Np3Bn1/3nR1br/1BKRb2P/6nr b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 exd4 g4 f5 gxf5 c6 b4 Bb7 b6 Bc5 b5 Be7 Bg2 Bc8 b7 Bh4 b6 Be7 Be4 Bd6 Bd3 Bf8 Bb5 cxb5 Kd2 g5 e4 a5 c4 a4 f4 d6 e5 Kd7 f6 a3 e6+ Ke8 e7 Kd7 e8R g4 f7 d3 f5 b4 f6 a2 c5 g3 Bb2 g2 Ne2 g1N Re3 Bh6 f8B Ra4 f7 Qf6 Nd4 Qg6 Ne6 Nf6 Be7 Bf4 f8B Rg8 Nc3 Na6 b8B Nc7 b7 Ng4 Ba7 Ra3 b8B Ba6 c6+ Kc8 Bh6 Bg3 Nf8 Ne6 c7 d5 Qf1 Bb5 Bac5 Bc4 Rae1 a1Q Qf7 Qb1 R1e2 Qf1 Na4 Ba6 Re1 Bb5 Kc1 d2+ Kd1 Rd3 Kc2 d1N R1e2 Ndf2 Rd2 Ng5 Re6 Ba6 Rd6 Ne6 Rb6 Rf3+ Qf5 Nd3 Qf7 Nh3 Rg1 Rg7 Rgg2 Ng1 Rge2 Bc4 Qf4 Rf7 Re3 Rf5 Qe5 Rh5 Qd6 Rh3 Ba7 Qe2 Bb8 Rf1 Bh4 Ndf2+ Re4 Nf3 Qf4 Rh1 Bhe7 Ng1 Qf7 Qf1 Rc6 Kb7 c8Q+ Ka8 Qd8 Kb7 Ra6 Bb5 Qb6+ Kc8 Bbf4 Qe2 Qd6 Qf1 Rb6 Qc4+ Bc3 Ba6 Bd4 Qc5 Bde3 Be2 Bd4 Nd3 Re3 Qc6 Bc5 Qb5 Bb2
2bNBK2/3rQ1pP/p1qN2qR/2Brbn1r/1Q6/pB1B2Q1/1R5B/r3n2k b - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 h5 cxd5 e5 fxe5 hxg4 Kf2 Ke7 Kg3 c5 Kf4 f5 Kg5 a3 Kg6 f4 e4 c4 d4 g3 h4 a6 b4 c3 e6 Kd6 Kf7 f3 e7 f2 e8B c2 e5+ Kc7 e6 Kd6 e7 g2 h5 Rh6 b5 Qa5 b6 Ra7 b7 Qc7 Bd3 f1Q+ Qf3 Nd7 b8Q Ngf6 Nh3 g1R Be3 c1R Nf4 Rc3 Qb4+ Nc5 Ba4 Rb7 Ra2 Rc1 Qg3 Ng4 Bb3 Qc6 Nd2 Rg2 Rb2 Rg6 h6 Qg1 h7 Ra1 Rh6 Rd7 Bf2 Rh2 Ne6+ Ne5+ Kg8 Rh5 e8B Rgg5 Be3 Be7 Nd8+ Bf6 Kf8 Qg2 Bg1 Qe4 Bh2 Qg6 Qb7 Ne4 Qb4+ Kc7 Nc4 Nd6 Be4 Nf5 Nd6 Nf3 Bd3 Qb7 Nb5+ Kb6 d6 Be5 d5 Qc7 Re2 Qc6 Rb2 Re7 d7 Ne1 Qbf4 Kc5 Nd6 Nf3 Qd2 Kd4 Qb4+ Ke3 N8f7 Qc1 d8Q Rd7 Qe7 Qc6 Nd8 Rg4 Nb5 Rd4 d6 Rd5 Ra2 Ra7 d7 Rb7 Rb2 Rc7 Qgh4 Ne1 Nd6 Kf3 Qhg5 Qc2 Qgh4 Kg2 Qg3+ Kh1 Nc6 Ra5 d8B Rd7 Bb6 Rd5 Nd8 Qc6 Bc5
bqBQ1r1n/2bp4/2B1p3/3RQ2N/1q1BKnpR/2R5/3kBN1P/nB1n1r2 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Kd3 Kf6 c4 Ke5 f4+ Kf6 a4 g5 a5 b5 c6 e6 c7 b3 c5 g3 a6 g4 a7 b2 c6 b4 Nd2 b1N Ne2 b3 Ra5 g2 Ke4 g1Q Rd5 b2 Qe1 Rh6 Ng3 Ne7 Bd3 Na3 Bb1 Bb7 c8B Qc5 c7 Na6 Rf1 Nb4 Rf3 Nac2 Rc3 Rb8 a8B Ng6 Qe2 Bc6 Ba6 Bd6 c8B Bc7 Qe3 Qb6 Be2 Nh8 Qc5 Na1 Nh5+ Kf7 f6 Kg6 f7 Nd3 f8Q Qb4+ Qd4 Qe8 f5+ Kg5 Qe7+ Rf6 Qd8 Nf4 Bab7 Qa3 Qe5 Qb4+ Nc4 Qef8 Be3 Qg8 Bd4 Ra8 Bbd3 b1N Ne3 Qgf8 Nd1 Rb8 Bba6 Ba8 Bab5 Qg8 Nf2 Qgf8 Ra3 Qe8 Bc6 Nc3+ Ke3 Nd1+ Ke4 Qef8 Bb1 Qfd6 Bca6 Rc8 Rc3 Qb8 Qf8 Rd8 Bc8 Qdb4 Qe7 Rf8 Qe8 R6f7 f6+ Kh4 Nd3 Kh3 Qd8 Kg2 Nf2 Kg1 Bf3 Kf1 Be2+ Ke1 Nh3 Rh7 f7 Kd2 Nf2 Rg8 f8R Rf7 Re8 Rgf8 Re7 Rf5 Rh7 Nd3 Nh3 Rf1 Nf2 Nf4 Ng7 Rh1 Rh4 Rf1 Nh5
3r2N1/1RpqRQ1p/2qr2B1/qkN1bNB1/1N1pbN1n/3P4/2n1K1Q1/5Bq1 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 Na6 h4 gxh4 a3 Nb4 Ke2 Nc2 Nh3 Nxa3 Ng1 Nc2 g4 d5 b4 Kd7 f4 e5 g5 a5 g6 e4 d3 e3 b6 Kc6 b7 h3 b8N+ Kb5 g7 h2 f6 d4 f7 a4 f5 a3 f6 a2 Qd2 Qe7 Na6 Ne1 Nf3 Bh3 Na3+ Kc6 b5+ Kb6 Nh4 Rb8 Nc5 Re8 Nf5 Qe6 Nc2 Qe7 Nb4 Nh6 g8B Bg7 f8Q Nc2 f7 Ka5 b6 Kb5 b7 Qd7 b8N Bg2 N8c6 Be5 Nce7 Rd8 Qg7 Bb7 f8N Be4 Bf7 Rg8 Qg2 Rg6 Ng8 Rd6 Rg1 h1Q Bg6 Ba8 Qf2 Be4 Nfe6 Qg2 Nf4 Qh1 Rb1 a1Q Rg2 Qa8 Ra1 Qac6 Ra7 Qg1 Rg3 Nf7 Qg2 Ng5 Qc3 Nf3 Qb3 Nh4 Qf7 Na1 Ke1 e2 Re3 Nc2+ Kd2 Bf3 Re4 Bh8 Re6 Be4 Re7 Be5 Nba6 Bh8 Nh5 Na1 Ke1 Be5 Bg5 Qh2 Kf2 Nc2 Nf4 Qh1 Kg3 e1Q+ Kg4 Qa5 Nb4 Qa4 Kg3 Qh2+ Kf2 Qa5 Ke2 Qg1 Rb7+
7R/1Np1p1R1/1R2r2P/1q4nN/b2kBnK1/1R2bn2/nQ2pq1r/R1Q2BB1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 gxh5 fxe4 Ke2 Kf7 d4 Kf6 h4 b5 f4 g5 a4 g4 d6 g3 d5 e3 Kf3 g2 f5 Ke5 h6 b3 d7 b4 h5 e2 f6 b2 h7 b3 a5 Nc6 h6 Nb4 d6 Na2 a6 Bb7+ Kg4 Bd5 a7 Bg7 f7 Qb8 d8Q Qb6 f8R Bc6 d7 Qf2 Nd2 b1N Qb8 b2 d8R Nbc3 Rd3 b1Q Qb2 Ba4 Nh3 g1N Nf4 Nf3 Rf6 Rf8 Rg6 Rf6 a8B Re6 Nb3 Bf6 Qdd2 Bg5 Nh5 Be3 Rd6 Qd3 Na5 Qb5 Nb7 Ke4 Rd3 Nd5 Rb3 Nf4 Qe1 Kd5 Rg7 Ke4 Bd2 Kd5 Qec1 Nf6+ Kf5 Rg8 h8R Nh7 Kg4 Nhg5 Rh3 Qa6 Rb6 Qb5 Be1 Qg2+ Bg3 Qf2 Bh2 Rf8 Bg1 Rf5 Qbb1 Kd4 Qbb2+ Kd3 Qd1+ Nd2 Qbc2+ Kd4 Nf6 Nf7 Nc5 Rh5 Be4 Ng5 Rf3 Rh2 Qdc1 Ke5 Nb7 Bd4 Rb3 Ndf3 Nh5 Be3 Q2b1 Kd4 Qbb2+
1bnKR3/1Pn1N3/5nq1/p1qN2p1/1BN1nRp1/5B2/1QQ1br1N/Rr2kN2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 b4 Kg5 h4+ Kh5 d4 c5 d6 f5 d7 g5 d5 a5 b6 f3 Ke3 f2 d6 c4 Kd4 c3 Kd5 c2 Ke6 f4 b7 f3 b5 Ra7 b6 Na6 b8R Nh6 e5 Nf7 b7 Bg7 Be2 f1Q Ba3 c1N Bb4 f2 Nf3 Ra8 Nh2 Nd3 Qc2 Qc7 Ke7 Ndc5 e6 Ne4 Bf3 Be5 Nd2 Qc5 d8N Nf6 Nc6 Qd3 Rhf1 Bd7 Re8 Bg3 Ne5 Bb5 Nec4 Qg6 Ne4 Nc7 Ned2 Qa7 d7 Nd6 d8N Qc5 Nc6 Nc8+ Kd8 Rf8 e7 Ra6 Rfe1 f1N Re4 Rb6 Rd4 Be5 Rf4 Ng3 Ndf1 Nge4 Nfd2 Kh6 h5 Bd6 Ndf1 Be5 Nce3 Be2 Nd5 Rb5 Bd2 Rb1 Bb4 Kg7 h6+ Kf7 h7 Ke6 h8Q Bd6 Nd4+ Ke5 Nf5 Rf7 Nf5e3 Kd4 Nc4 Be5 Rf8 Bd6 e8N Be5 Ng7 Bd6 Qa4 Kd3 Re8 Rf8 Qc6 Kc2 Nf5 Kd1 Nfe7 Be5 Nfd2 Ke1 Qg7 Nb5 Qh8 Bb8 Qg7 Nc7 Qa4 Rh8 Qc2 Rh3 Qh8 Rg3 Qg7 Rg2 Qh8 Rf2 Qg7 Nh5 Qgb2 Nhf6 Ndf1+
1BBn2kn/1p2rN2/q2rR2K/3q4/1Bbp1BP1/N1p5/1bN5/Q1QbRbB1 b - - 0 1 illegal: No proof kernel
4n3/1p2RQkN/q7/1B1PN3/1N1n1pN1/p2B1N2/KBrrrrb1/bR1q3Q b - - 0 1 illegal: No possible last move, all moves rejected
1N3rr1/p4b2/Q5pb/Nq1BN2q/RNqnq3/B3QR2/kp1BP2n/3K3N b - - 0 1 illegal: No proof kernel
KB1Rr1n1/p3bpqQ/2N4R/3RnB1Q/rk1P3p/Rq2rb2/1B1N4/R6r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b4 h5 g4 c5 g5 f3 b6 h3 b7 f2 g6 h2 d6 Nc6 b8R Na5 g7 Qd7 b5 Nb3 b6 Qd8 b7 Rh6 d7 Kb5 Kd5 c4 e4 Bd6 e5 Bf8 e6 Bb4 e7 Bc5 e8R Na5 Nd2 Re6 Nb3 Re3 Bh3 f1Q Nf3 c3 Re5 c2 Nfd2 Nc4 Na5 Qb6 d8R Qff6 Bf5 Be7 Bb2 c1R Ra3 h4 Qh5 Rcc3 Rha1 h1R Re6 Qg5 Rh6 Kb4 Rdd6 Bd7 Rd8 Ne5 b8B Ba4 R6d7 Rc4 Rdd6 Bf6 R6d7 Bc6+ Kd6 Qb5 Kc7 Be7 Rd5 Qa4 Kc8 Qb3 Kc7 Nf6 g8Q Qg7 Qh7 Ng8 Rc5 Bf3 Kc8 Bd1 Kb7 Bf3+ Rcd5 Bd6 Bc7 Rc8 Bb8 Be7 Rd7 Re8 Rd8 Rc6 Ka8 Ra6 Nb7 Ra4 Na5 Bg5 Qg4 Bf6 Qh5 Be7 Nc6+
Bk3BBK/8/rn2R2b/r1pbBpq1/B1P2R2/1Q1Nqq1b/5NpQ/3Q3r b - - 0 1 legal: proof: d4 h5 a4 e5 e4 exd4 f4 b5 axb5 Nc6 g4 hxg4 e5 Nh6 e6 Ne5 fxe5 Ng8 Ke2 c5 Kd3 g5 Ke4 d5+ Kf5 a5 h4 a4 c4 g3 b4 g4 b6 a3 h5 d3 h6 d2 b5 g2 b7 d4 b8B d3 h7 a2 b6 f6 Kg6 f5 b7 g3 e7 Kd7 e8B+ Ke7 e6 Nf6 Nh3 g1R Bg2 Ra4 Be5 Nd5 b8Q Nb6 Bf7 Bb7 Nf2 Ra6 Bg8 Bh6 Rh4 Bd5 Nc3 Rh1 Nce4 Ke8 e7 Kd7 Bf3 g2 Rf4 Kc6 Rb1 a1Q Rb5 Qd4 e8B+ Qd7 Bb2 Qe3 Bd6 Ra5 Bf8 Ra6 Be5 Ra5 Qd8 Kb7 Qb3 d1Q Rb4 d2 Nd3 Ka7 Nef2 Qe7 Ba4 Qf1 Qd6 d1B Be4 Bg4 Qd8 Nd7 Rb6 Bh3 Re6 Nb6 Qd6 Qg5+ Kf7 Bb7 Qd4 Qfe2 Qa1 Q2f3 Qad1 Bc8 Ba8 Bb7 Bb2 Bd5 Be5 Qgg4 Kf6 Qh5 Bf7 Rg8 h8Q Rg5 Bg8 Rg6+ Ke7 Qg5+ Kf7 Bb7 Re7 Rd6 Re6 Kb8 Qh7 Bd5 Qh8 Bg7 Qh4 Bh6 Qg3 Qh4 Qh2 Qd8 Kg6 Qg5+ Kh7 Qg6+ Kh8 Qg5 Bb5 Nd7 Bb2 Rda6 Ba4+ Nb6 Be5+
2BN4/pn3qR1/3RQ3/B3Kp1B/2p1nB1r/2P1b2q/B2r1q2/Nr1kQn1N b - - 0 1 illegal: No possible last move
1N4N1/2QR3N/q4b1K/p2R2QB/pb3r2/k1BbB3/PN1nqp1N/q4nn1 b - - 0 1 illegal: No proof kernel
brBBR3/2Rp2K1/2Qq2QR/rN3p1N/7p/1R1P2q1/1nR2rN1/1qnk2n1 b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 e4+ f3 b7 c5 b6 a5 b5 f5 Qc2 h5 Ne2 f2 Na3 h3 Ra2 c4 Nf4 Ne7 Kf6 a4 e5 c3 e6 h2 Kg7 Nd5 e7 Ne3 e8N Qc7 Nf6+ Kg3 d3 Nc6 b8R Ra5 b7 Rf8 b6 Nd1 Nb5 a3 Qa4 Qe5 Rc2 a2 Ba3 a1Q Be7 Nd4 Bd8 Qc7 Qc4 Qb1 Qc6 Ne2 Ra8 Qa2 b8R Qe6 b7 Ng1 Ra7 Qed6 Be2 f1R Bf3 Nb2 Bd5 Kh4 g4 Kg3 g5 Rf2 g6 Rh8 Ng2 h4 Nh5+ Kg4 Ra6 Qg3 Rba8 Qcd6 b8R Bb7 R8a7 Ba8 Rc7 Nf3 Rhc1 h1Q Re1 Ng1 Re8 Rf8 Qc5 Rh8 Bb7 Rf8 Bc8 Kf3 Na3 Rh8 Rb3 Rf8 Nb5 Rh8 Rce2 c2 Qc4 c1N Rc2 Be4 Qc6 Rf8 Rc4 Ke2 Rc2+ Kd1 Kh7 Qe7+ g7 Qed6 g8Q Bf3 Qg6 Bd5 Qc5 Ba8 Kg7 Qdf4 Ree6 Nce2 Qg4 Qc1 Bb7 Qhh2 Bf6 Rb8 Bd8 Qge3 Re8 Qb1 Rh6 Qd6 Bc8 Qeg3 Qg6 Nc1 Qc6
3N4/kr1br1BB/npBQ2Bp/1KpQ3B/nR2q2R/1P6/1rnR2nn/3N4 b - - 0 1 illegal: No extended proof kernel
2qR3K/1B2r2n/1N3Qb1/B6q/B1R2p1R/2QpNPp1/BqBkqr2/2q3n1 b - - 0 1 illegal: No possible last move, all moves rejected
1b3B2/4nQ2/RQkr1p1b/bpbn4/NQ1p4/1BqQB2N/qQ3P1K/5bR1 b - - 0 1 illegal: No possible last move, all moves rejected
2NR1k2/B1B1R1rB/n2Q2R1/K3n1qn/4ppRp/1b3P2/Nq1rQ1n1/1R2r3 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 Kb4 e5 c4 f5 g4 h5 c5 h3 d5 a6 c6 h2 f3 f4 d6 h4 g5 Nh6 g6 Nd7 b6 Rf8 g7 Qc7 g8R Bb7 Nh3 Ng4 Nf2 Ngf6 Ne4 Qb8 c7 Bd5 b7 Nh5 Ka5 Bb3 Rg6 Rf7 Rhg1 h1R Nbc3 Kf8 Qe2 d1N Rb1 d2 Na2 Ne3 R1g4 d1Q Bd2 Qd8 b8Q Ng2 Be3 Rg7 Ba7 Qd4 Qb4 Qe7 c8R+ Qd8+ Rc7 Qg5 Qa3 Rc8 Rb7 Rc2 Qb4 Rd2 Qa3 Bd1 b4 Bb3 b5 Qb2 b6 Rg1 Rc7 Rh1 b7 Rg1 Kb4 a5+ Kb5 a4 b8B Rh1 Ka5 Rg1 Qc5 a3 Rb7 Rh1 Bc7 Rg1 Nec3 Rh1 Na4 e4 Nb6 Rg1 Nc8 Ne5 Qc6 Rh1 d7 Rg1 Qeb5 Rh1 Bc4 Rf1 Bg8 Re1 Nc3 a2 Qe2 a1N Bh7 Nc2 Na2 Nb4 d8R+ Kf7 Qd6 Na6 Rd7+ Ke8 Re7+ Kf8 Rb5 Bc2 Rd5 Bd1 Qe6 Bc2 Rdd7 Ba4 Qd6 Bb3 Rd8#
QK6/rp2R3/1B1kB3/1p3RqR/1r2p1Q1/1b1nP3/rrR2R1q/N1bqN2B b - - 0 1 legal: proof: g4 g5 h4 f5 b4 d5 c4 a6 b5 axb5 cxd5 Nd7 Qc2 Ndf6 Qb3 Ne4 Qa4 fxg4 Qd1 g3 Ba3 g4 Bc1 Ng5 hxg5 Ra4 Bg2 Ra6 Bf1 Ra8 a4 Kd7 f4 c5 d4 e5 Kd2 h5 Kc3 h4 d6 c4 Kb4 e4 Kc5 g2 g6 g3 g7 h3 d5 c3 f5 h2 f6 c2 a5 Rh3 a6 Qa5 f7 Nh6 g8B Qd2 Kb6 Qc3 a7 Qh8 Nd2 Rh5 Ra2 Rh4 Nb3 Qh7 Na1 Bg7 f8R Qh8 Be3 c1Q Nf3 g1Q Bg2 Ng4 Rc2 Bb2 Rf5 Nf2 Ne1 Nd3 Bc5 Qhh6 e3 Qg5 Qg4 Qd1 Bd4 Bc1 Be6+ Kd8 d7 Ke7 Bf3 g2 Kc7 Qf2 d8R g1R Rh8 Rg2 Rf1 h1R Rh5 R4h2 Bb6 Qfe2 Rf2 Rf1 Bf7 Be6 Bg8 Bf7 d6+ Ke6 d7 Ke7 d8R Bb3 Rb8 Rfh1 Kc8 Kd6 Be6 Qed2 Rc7 Qb2 Re7 Qe5 Rf1 Ra2 Rf2 Rg1 Bh1 Rgg2 Rf1 Rgb2 R5f2 Ra4 Rc2 Rd2 Rf5 Qh2 Rf2 Ke5 Kc7 Rb4 Rbf8 Ra2 Rc4 Rdb2 Rcc2 Rb8 a8Q Re8 Qa3 Ra8 Qa6 Ra7 Kb8 Kd6 R8f5 Qgh4 Qa4 Qg5 Ba5 Ra6 Bd8 Rb6 Qa7 Rba6 Qa8 Ra7 Bb6
R4n2/3p2N1/B2Pn1p1/K2pRqnB/R2krQ1q/2N3bQ/1R5R/Bb1qq3 b - - 0 1 illegal: No proof kernel
R1nB4/1kN1bRr1/1pq1BN2/BP6/K1pB1Qpq/5Nrq/5Q1r/1q4Bn b - - 0 1 legal: proof: f4 d5 g4 h5 a4 hxg4 c4 e5 cxd5 exf4 a5 b6 a6 Bb7 axb7 Qc8 Ra2 Qd7 Ra1 Qd8 d4 Kd7 Kd2 f5 Kc3 g5 Kb3 a5 e4 c5 h4 Kc7 h5 c4+ Ka4 g3 b4 g2 h6 f3 d6+ Kc6 d5+ Kd7 b5 f2 e5 f4 h7 f3 Be3 Ne7 Qd2 Nc8 Nc3 Ra7 Ne4 Na6 b8Q Be7 Qb2 Qe8 e6+ Kd8 d7 g4 Nf6 Nb4 Bd3 f1Q Qf2 Qe1 Bf5 Nd3 Qf4 Qb1 Rh6 Qh5 Rg6 Qh4 Rg7 Rc7 Rf7 Rb7 Ne2 g1R Nd4 Rg3 Bd2 Nd6 Ra2 Kc7 d8B+ Kb8 Be3 Rd7 Bd2 Kb7 Bc7 Nc8 d6 Qbh1 Bb8 Rc7 d7 Qg2 Qg1 f2 d8B f1Q Qgf2 Qc6 Nf3 Rd7 Bd6 Qfh3 Bc5 Rc7 Qe1 Rd7 Bg1 Nf2 Ra1 Nh1 Qf2 Rg8 h8B Rg7 Ng8 Rh7 Bd4 Rg7 Nf6 Rd6 Ka3 a4 Kb4 a3 Ka4 a2 Be1 Rd7 Ba5 Bd6 e7 Rh7 e8N Be7 Rf1 Rh5 Be6 a1Q+ Qa2 Qb1 Nc7 Rh7 Qf2 Rg7 Re1 Rd5 Rc1 Re5 Rc3 Re2 Ra3 Rc2 Q2e3 Rcg2 Qf2 Rh2 Bac3 Qd5 Ra2 Nd6 Ka3 Qc6 Ra1 Qc1+ Kb4 Qc2 Ra8 Qb1+ Ka4 Nc8 Ba5
3RB3/K6p/1rb1Qb1Q/Nr1N2NP/2b1qb2/pN2r1R1/p2BnqB1/2N4k b - - 0 1 legal: proof: f4 b5 g4 f5 a4 bxa4 c4 e5 Nf3 d5 cxd5 Nc6 Ng1 Nce7 Nh3 exf4 Ng1 f3 Kf2 f4 Ke1 Nf5 gxf5 Kd7 Nh3 Ke7 Ng1 Ke8 Kf2 Kf7 d4 Kf6 e4 Kg5 b4 Kh4 d6 g5 d5 c5 e5 a5 d7 g4 f6 a3 b5 a4 d6 a2 f7 c4 b6 a3 e6 c3 e7 c2 e8B Qe7 d8N Qb7 d7 Ra5 Bd2 c1B Ne2 Ra6 Nc6 Nf6 d8N Bg7 f8Q Bd7 Ne6 Nd5 Rg1 Nc3 Nb4 Bf6 Nd5 Bc6 Qb3 Qe7 b7 Rb6 Ng5 Qe4 b8N g3+ Ke1 g2 Kf2 Kg4 h4 Rg8 h5 Rb5 Nb6 Rg6 Qh6 Kh4 Nd5 Kg4 Ne6 Kh3 Ng5+ Kh2 Qc4 Rg7 Qb3 Rgb7 Qc4 R7b6 Qb3 Bb2 Nc1 Ne2 Qe3 Bbe5 Qb3 Bb7 Nc6 Bd6 Na5 Bc6 Nbc3 Bc7 Na4 Bb8 Nc5 Bbe5 Ke1 f2+ Kd1 f3 Qc4 Qg4 Kc2 Bf4 Kd3 Qe6 Nc5b3 Qe5 Qd4 Qe4+ Kc4 Nc3 Be2 f1R Bd3 Rf2 Bf1 Re2 Rb1 f2 Rb2 Qb1 Qe4 Re3 Qe6 Qf5 Rc2 Ne2 Rc3 Qe5 Rd3 Qe4+ Rd4 Kg3 Rh1 g1Q Bg2 f1B Rh3+ Kf2 Rg3 Qh2 Bg6 Kg1 Be8 Rb4+ Kc5 Qh4 Rh3 Qf2 Rg3 Nc3 Nc7 Bc4 Rd7 Ne2 Rd8 Ra6 Nd5 Rb8 Nb7 Ra5+ Kb6 Rb5+ Ka6 Kh2 N7a5 R8b6+ Ka7 Kg1 Bh3+ Kh1 Bg2+
1k3n2/pRqp3n/8/N1bPBR2/pN5N/1b4N1/BQ1Nn1qQ/K1Qr2qn b - - 0 1 illegal: No possible last move, all moves rejected
1q1q1q2/rbN1B2B/2B1Brp1/np4K1/3n1Q2/pPr1R3/3NBrQR/6kN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 a5 e5 fxe5 c5 d4 cxd4 Nd2 Bc5 Nb1 Bb6 axb6 Rh4 Na3 Rh5 Nb1 Rh8 Kd2 Ke7 h4 Ke6 c4 Kf5 e4+ Kf4 c5 Kg3 c6 Kf2 e6 f5 e5 d5 c7 a5 e7 f4 e8B a4 b3 f3 b7 a3 e6 d3 e7 g3 h5 g2 h6 d4 h7 Ra6 Bc6 Qf8 e8B Ne7 Ne2 g1Q Qc2 Nf5 Ng3 Ra7 Bg6 Qh2 Be2 Rg8 h8N Kg2 Bh7 g6 Nf7 Kf2 Bd7 Nc6 b8Q Bb7 c8B Na5 Qf4 Rg7 Nd6 Rf7 Ne8 Rf6 Bc6 Kg2 Ne4 f2 Nc7 f1R Be6 Rf2 Qa2 Qg3 Rh2+ Kg1 Bb2 Qf3 Ng3 Qb8 Qe3 Qf4 Nh1 Qd6 Qf4 Qdf8 Kd1 d2 Bc3 Nd6 Bb4 Nf5 Kc2 d1R Nd2 Rdf1 Kd3 Rc1 Ke4 d3 Be7 Nd4 Rb1 Ra8 Rb2 Ra7 Rh3 Rc3 Re3 Rg2 Qf5 Rh2 Kf4 Rf2+ Kg4 Rc5 Kg5 Rc3 Nb1 d2 Qf4 d1Q Nd2 Qb1 Rh3 Qc2 Rh2 Qd1 Rc2 Rh3 Rc3 Rhf3 Re3 Rh3 Re4 Rc3 Re3 Nc4 Qb1 Nf5 Qbe4 Na5 Nb1 Qdd8 Nd2 Nd4 Qg2+
1N2r1qQ/RR1N1rpb/2k2NB1/1pbrB1N1/1r1Q1pP1/3N4/Q4K2/1bq2n2 b - - 0 1 illegal: No proof kernel
B7/QKnQbp2/B2qprN1/k4N1R/2R2Bpn/n2rPBq1/2r2B2/rR6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 d4 cxd4 axb5 Bb7 f5 Be4 Ra3 hxg4 Ra1 g5 Bg2 g3 Bf1 Bf3 Na3 Bh5 Nb1 Bg6 fxg6 Qa5+ Bd2 Qb6 Bc1 Qd8 Kd2 d5 Kd3 Kd7 h4 Kc7 c4 Kb6 b4 a5 g7 a4 h5 g4 h6 a3 h7 e6 c5+ Kc7 c6 Kb6 c7 g2 c8B a2 Bf4 Ra3+ Nc3 Ra5 e3 Ra8 Rh5 Ra4 Ba6 Qg5 Nge2 g1Q Ne4 Qf6 Nd6 Nh6 Bg2 Nd7 Nf5 Qe7 Bf3 Qd6 Rb1 a1R Bg3 Qh2 Bf2 Be7 Nf4 Nf6 Ng6 Rc8 h8R Rc2 g8B Ne8 Bh7 Nc7 Rc8 Qhg3 Qd2 Na8 Rc4 Nc7 Ng7 Nf5 Qd1 Nh4 Nf5 Rc1 Qd2 Rf1 Qd1 R4a2 Qd2 Rc2 Qd1 Ka7 b6+ Ka8 b7+ Ka7 b8B+ Kb6 b5 Ka5 b6 Rc1 Ke2 d3+ Kd2 d4 b7 Rc3 Ba7 Rc1 b8Q Rc3 Qb7 Rc1 Bb8 Rc3 Qa7 Rc1 Qe1 Rc2+ Kd1+ d2 Ke2 Rh1 Kd3 Rf1 Qe2 d1N Qd2+ Nc3 Qd1 N3b5 Ba8 Qb4 Ke4 d3 Qd2 Qg2+ Ke5 Na3 Qd1 d2 Kd4 Nd5 Bf4 Nc7 Ke5 Qg3 Kd4 Bg5 Bf3 Qb8 Kc5 Be7+ Kc6 Qd8 Kb7 Qd6 Qc1 d1R Qd2+ Rc3 Qd3 Rc2 Qdd4 Rd3 Qd5+ Qc5 Qd7 Qd6 Nd4+ Bg5 Bg2 Rcc3 Nf8 Nab5 Kc8 Ng6 Ba8 Qc6 Be1 Qb6 Bd6 Rf5 Bf4 Be7 Bf2 Qd6 Kb7 Nh4 Bg6 Rf6 Be4 Rc2 Nf5 Na3 Ng6 Rcd2 Bd5 Rc2 Bf3
7K/RRr2Q1R/B2rnB1B/2p3p1/qR1rRn2/Q1N2q2/b1Ppq2q/1k2N3 b - - 0 1 illegal: No possible last move
Qr3Nb1/1R2r1p1/B3k2q/NQ2np1N/1r1qpqqn/2Q3P1/1N6/KNB3R1 b - - 0 1 illegal: No proof kernel
r2Rrr1B/2bQ4/N2p1r2/2kB3K/1q5R/Qp1q2RQ/3Ppq1n/Nn4RR b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 Ke2 c5 Kf3 e5 Kg4 Ke7 f4 Kd6 a4 h3 f6 h2 f5 b2 a5 h6 a6 b3 a7 e4 f7 e3 b6 c4 f6 c3 b7 c2 Ne2 Bg7 f8R Kc5 f7 Ne7 Kh5 Be5 g4 Nd5 g5 Qa5 g6 Nc3 g7 Bc7 g8R d6 Nd4 e2 Rd8 Nd7 f8R Ne5 b8Q Qb4 Nc6 Ng4 Na3 b1Q Bb2 c1R Qb7 Qd3 Rf4 Nb1 Nb8 Rc3 Rg6 Rf8 Nc2 Re8 Rg1 h1Q+ Bh3 Qh2 Qf1 Qhg3 Bg2 Qf2 Bd5 Nh2 Qh3 Rc4 Rh4 Rf4 Bh8 Rf6 Qbc8 Rff8 R6g3 Rf6 Qcf5 Rff8 Kg6 h5 Kg5 Rf6 Qd7 Ref8 Rf4 h4 Kh5 Na3 Rae1 Nb1 Na1 Re8 Qhe6 h3 Rh4 Nf1 Qf5 h2 Qh3 h1R Rd1 Rh2 Rh1 Rg2 Re1 Nh2 Reg1 Ref8 Nc6 Rb8 a8Q Re8 Qa3 Ra8 Nb8 Rff8 Rf3 Rg6 Rfg3 Rgf6 Na6+
k1N2B1b/3n1bQr/p1KbR3/1n1B4/B2p1n1b/1N1NbrpR/6P1/B3QB2 b - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 g5 h4 f5 a4 fxe4 Ke2 bxa4 Kd2 g4 Ke1 Qc7 Ke2 Qe5 Ke1 Qg5 hxg5 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd8 Ke3 Kc7 Kd4 Kb7 Kd5 e5 c4 h5 b4 a3 f4 e3 b5 h4 g6 a2 f5 e4 b6 h3 f6 h2 g7 e2 f7 e1B Nh3 a6 Bf4 e3 Nf2 e2 Be5 Nh6 g8B Nf5 Nd2 Rh7 Bf6 Ra7 c6+ Ka8 c7 Nd4 c5 d6 Rc1 a1B c6 Bf5 c8B Bg6 c7 Rb7 Bf5 Nd7 c8N Rb8 Nh3 Bf2 Rc6 e1B Nf4 Bg1 Bg7 Bh4 Qe1 g3 Bc2 Bfe7 f8Q Bh5 Be6 Bf7 Ba4 Rb7 Bf6 Rc7 Be5 Nb5 Nb3 Bf2 Bd4 Bg1 Bc5 Bh8 Qg7 Bf2 Bd4 Bf8 Ba1 Bd4 Rc2 Rc3 Re2 Rf3 Kc6 d5 Nd3 Bb4 Re5 Be3 Re4 d4 b7+ Kb8 Bd5 Bd6 Rg1 h1N Re6 Nf2 Rh1 Nh3 Rh2 Nf4 Rh3 Bb4 Nd6 Ka7 b8B+ Ka8 Nc8 Ba3 Bd6 Bb4 Be7 Bd6 Bf8
nR5n/6K1/2p2Q2/p1n1p1Qb/nB3nB1/r1P3b1/B2kNrN1/r2BR1RB b - - 0 1 legal: proof: e4 g5 a4 b5 g4 bxa4 f4 d5 fxg5 dxe4 h4 Nh6 g6 Bd7 h5 Ng8 g5 Bc8 g7 Qd5 Bg2 Qe6 Bf1 Qg6 hxg6 Be6 Nc3 Bf5 Nb1 Bc8 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 h5 d5 f5 d6 c6 d7 e3 d8Q f4 b3 e2 Bb2 e1N Qe8 a3 Qc1 f3 Ba6 f2 Bb7 f1N Nf3 a2 Qd8 h4 Nc3 h3 Nh4 h2 Rg1 h1N Ne2 Nh6 g8B Nf2 g7 Ne3 g6 N1g2 Bd5 Nfd1 g8B Bg4 g7 Nc3 Bc8 Na6 Bf5 e6 Kf6 Nc4 Qg5 Nc5 Rae1 a1R Bc1 a5 Bd2 Nf7 Bgh7 Rc8 g8B Bd6 Kg7 Nb6 Bf3 Na8 B5e4 Bh5 Bg4 Bg6 Qde7 Rf8 Qd8 Ne3 Bh1 Nd5 Ng2 Bf4 Qde7 e5 Qd6 Bf5 Bg6 Rh3 B6h7 Nh8 Qdd8 Ka3 b4 Kb2 b5 Bg6 b6 N3a4 b7 Bh5 Bb4 Rha3 b8R Bg3 c3 Rf2 Bc2 Nf4 Bd1 Kb1 Qdf6 Kb2 Nd4 Kc1 Ba2 Kd2 Ne2
3rR2K/ppB4R/1k4r1/2r2Rb1/nB2N3/pP1b4/2r1BrR1/2QRrQNq b - - 0 1 illegal: No proof kernel
1NQ1q3/2RR1Qb1/BP1n4/pp1Kp3/p3n1n1/Qr1N3B/1r2r1kB/Bb4B1 b - - 0 1 illegal: No possible last move
3B1QB1/1k2b2Q/1p3rnN/p1P2p2/R2Kn1N1/1R1p3b/1r4nN/1R2NbNq b - - 0 1 illegal: No proof kernel
2Q2KQb/bR1NpRn1/1q3rN1/3p2PQ/bQr2n2/4B1p1/2N1p1Q1/1r2k2B b - - 0 1 illegal: No possible last move
1b1kQ3/Q2p2r1/3BPn1R/1K1bp1N1/pQ1N1q1Q/1b5n/3pQN2/r1R2B1r b - - 0 1 illegal: No proof kernel
rnN2K1b/4n1B1/2Bb4/2Np2Rp/R2p4/2Qr1N1P/p1q1kNQ1/4NqQn b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Kf2 Bb7 Ke1 Be4 Kd2 exf4 Ke1 f3 Na3 f4 Nb1 Bf5 gxf5 Be7 Na3 Bd6 Nb1 Bf8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 e4 h5 b4 a5 h3 g5 b6 d6 b5 g4 f6 f2 b7 f3 f7 a4 b6 g3 Bh6 a3 Bg2 f1N Nd2 f2 Ndf3+ Ke6 e5 Kf5 Kd5 Qe7 c4 Rh7 c5 Rh8 e6 Qg5 e7 Kf4+ Ke6 Ke3 e8N Nf6 c6 Na6 b8Q Bg7 Ke7 Ra7+ b7 Nd2 f8N f1Q c7 Nde4 c8N Ra8 Ne6 Rf8 Ne1 Bh8 Nc5 Nf2 Qc7 Nb8 Bg7 Qf5 Ngf3 Qc2 Rg1 Nh1 Qa5 Rg8 Qc3+ Kf2 Kf7 Nd5 Nf6 Ne7 Qb1 Ke2 Nfe4 Re8 Nf2 Rg8 Nh2 Re8 Bc6 d5 Nhf3 g2 Ra2 Nf5 Qba1 Re3 Kf8 Ne7 Qab2 Na6 b8Q Rd3 Qg3 Nb8 Ra1 a2 Rb1 Re3 Qa1 Rd3 Rb4 Ra3 Qg6 Ra8 Ra4 Ng3 Rh1 g1B Qb1 Bh2 Rg1 Nh1 Rg5 Bd6 Qe4+ Re3 Qg4 Rd3 Qc1 Qb1 Qg1 Qb3 Qf4 Qd1 Qfg3 Qc2 Q3g2
1b1kr3/2nBR3/1qpb2q1/B2Q1n2/3PbR2/1Npp2NK/2BQ1r1p/4BN1B b - - 0 1 illegal: No proof kernel
r2bR1K1/1k1R1rQN/1p2q1p1/3nBBpp/R3b1q1/1P5n/3R4/1QbR2NN b - - 0 1 illegal: No proof kernel
1RB4q/4bN1Q/Kpp1Rp2/BN2P2b/3r3k/r5qb/Rnp2n2/RNR1Q3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 dxc4 b4 e5 fxe5 h5 gxh5 axb4 h4 Ke7 a4 g5 d4 c3 e4 b3 Ke2 g4 Kd3 f6 Kc4 b6 Kb5 c2 e6 b2 a5 g3 a6 g2 d5 Bb7 a7 Qc8 h6 Nd7 e5 Rb8 a8R Nc5 h5 Rh7 R8a2 Ra8 Bd2 Nd3 Qe1 Ra3 Ne2 g1Q Bh3 Qg3 Ba5 Qa8 Bg4 Bc8 Nec3 Rg7 h7 Nh6 Bh3 Ng4 h8R Ngf2 h6 Rg4 h7 Rd4 d6+ Ke8 e7 Kf7 e8R Kg6 d7 Kg5 d8Q Be7 Qd7 Kh4 Rhf8 Qb8 h8N Qa8 Nf7 Qb8 Nd2 b1B Qf5 Be6 Ka6 c6 Nb5 Nb2 Qfe4+ Bg4 Qh7+ Bh5 Rg1 Bc5 Re6 Be7 Rh8 Qf8 Rg8 Qfg7 Rf1 Qh8 Rb8 Nc4 Rb2 Ba2 Nb1 Bb3 Rba2 Nb2 Qc3 Bd5 Rc1 Bg2 Qe1 Bf1 Rd6 Bg2 Bc8 Bh3 Re6
k6K/Qq2nNpP/Q1rr4/2R3p1/1bRRBnq1/Q1B2p2/3QQp2/N1nb4 b - - 0 1 illegal: No possible last move, all moves rejected
4bBK1/B1r2p1n/4Q1Rr/pN1qbQ2/5pR1/1NNP4/1r3qp1/BkBB1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 b4 Ke5 h4 Kd4 d3 g5 b6 a5 b5 c5 h5 g3+ Kf3 g2 b7 c4 h6 c3 d6 c2 b6 Nf6 d7 Nd5 Kg4 Ne3+ Kh5 g4 h7 g3 e5 Ba3 Kh6 Na6 Kg7 Rf8 b8N Bd6 h8B Nc7 e6 Ncd5 b7 Bb4 e7 Qb6 d8B Bc5 e8Q Qa7 Nd2 Kc3 Rh4 Nf6 Be2 Nf1 Na6 Nh7 b8B Qd7 Nb3 Qd5 Nc7 Bd6 Ba7 Bd7 Be7 Rb8 Rg4 Rb7 Qc8 Be8 Qe6 Rb6 Bf3 Rc6 Qde2 Be5+ Qf6 Rb6 Qe4 Rc6 Qf5 Re6 Bd1 Rd6 Bd2+ Kb2 Ne2 c1R Nc3 g1Q N7b5 Qf2 Qe6 Rc2 Rc1 g2 Bde3 Bd7 Bd2 Rd8 Bf8 Rc8 Kg8 Be8 Qff5 Rb6 Na2 R2c7 Rc6 Kb1 Bc1 Rcb8 Bf6 Bd6 Ba1 Be5 Rd6 Rbc6 Qd7 Rbb6 Rdg6 Rc2 Qc8 Rf6 Qce6 Rb2 Rg7 Rh6 R7g5 Rbc2 Rg6 Rb2 Nac3+
5Nn1/2RRpbK1/p1pr4/4pQQB/1Rq1NrR1/2P1qb1N/k2bn3/1B1R4 b - - 0 1 legal: proof: e4 b5 f4 g5 fxg5 b4 e5 d6 a3 dxe5 axb4 h6 b5 Qd5 Bc4 Qd6 Bf1 Qd8 g4 Be6 b3 Qd4 g6 Qd6 g5 Qc5 g7 Qa3 g6 Bd7 Bb2 Bc8 Bd4 Qd6 Be3 Qd8 Bg5 hxg5 Ke2 Kd7 Kf3 Ke6 Ke4 g4 h4 f6 d4 c6 b4 g3 d5+ Kd6 b6 a6 b7 g2 b5 Kc5 d6 Kb4 h5 Bg4 h6 Be2 Kf5 Ra7 h7 Nd7 b8R Qb6 c3+ Kc4 Ra4+ Kc5 Rb7 Qa5 b6 Qb5 Nh3 g1Q Nd2 Kd5 Qb1 Bf3 Bd3 Qgc5 Rc7 Qbc4 b7 Nb6 b8R Qe3 d7 Kc5 d8N Nd5 Rbb4 Nf4 Rd1 Ne2 Ne6+ Kd5 Qc2 Ra8 Ne4 Rd8 Rbb7 Rd6 Rab4 Ng1 Qf2 Ne2 Bb1+ Qcd4 R4b6 Kc4 Qg2 Qc5 Qg5 Qb4 Rd7 Kb3 Rbc7 Ka3 Rb5 Qc4 Rb4 Bh1 Kg4 f5+ Kh5 f4 Qf5 f3 Qg5 Nh6 g8B f2 g7 f1B Kg6 Bf3 Bf7 B1g2 g8R Bh1 Rg7 Ng8 Be8 Bhg2 Kf7 Bh5+ Rg6 Bh6 Qf5 Bg5 Kg7 Bgf3 Nf8 Bf4 Rg4 Bf7 Neg5 Qed3 Ne4 Bd2 Qg5 Qe3 Qf5 Bd5 Bh5 Bf7 Qg5 Nh6 Ne6 Rf8 h8Q Ng8 Qhh6 Ra8 Qf5 Rf8 Bc2 Ka2 Qhg5 Bg6 Bd3 Rf6 Nf8 Bf7 Qfg6 Rf4 Q6f5 Ng1 Bc2 Ne2 Bb1+
K2RB3/b1p2N2/1BBQ2qq/rR1N1BB1/2b2P1p/3p1r1p/3q3k/2RQn2n b - - 0 1 illegal: No proof kernel
4Nq2/1kp2RNB/3pp1Q1/p4n2/3Rb1R1/BbP5/1R1rrn1r/KBq1Q1R1 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 e6 h4 gxh4 e5 Be7 d4 f6 d5 fxe5 d6 e4 dxe7 Kf7 Kd2 Ke8 Kc3 a5 b4 h5 Kb2 e3 f4 d6 g4 Kd7 c3 e2 b6 Kc6 e8Q+ Bd7 b7 e1R f5 h3 f6 h2 b5+ Kb6 f7 h4 f8R h3 g5 Bc8 g6 Qd7 g7 Ka7 Ra4 Rh6 Nf3 Nf6 g8B Qg7 Ka1 Nh5 Bd3 Re2 Nd4 Qh8 Rf7 Na6 b8R Nb4 Nd2 Ng3 Ne4 Nf5 Nf6 Bb7 Bh7 Bd5 Bb1 Nd3 Qe1 Nf2 Ba3 Qf8 Rg1 h1Q b6+ Ka6 b7 h2 Rd8 Bb3 b8R Rh4 Rbb4 Rb8 Rc4 Rb5 Rb8 Rbe5 Rbb4 Rd2 Rb7 Ree2 Rb8 Ne3 Nf5 Rh5 Ng7 Nf5 Rcg4 Ka7 Rd8 Kb7 Rad4 Rh3 R1g3 Qf1 Rg1 h1B Rc8 Rh2 Rb8+ Ka7 Rb5 Be4 Rb6 Ba4 Rb2 Bb3 Qd8 Kb7 Nfe8 Bd5 Qg5 Be4 Qc1 Qd1 Qg6 Qc2 Qd1 Qc1 Qe1
1nn5/p1Qk1p1N/2rp1b2/2rN1P1Q/R6B/b4N2/QRp3rq/1BK1Qq1Q b - - 0 1 legal: proof: b4 h5 a4 b5 axb5 d6 c4 Nf6 g4 hxg4 c5 Ba6 c6 Ng8 b6 Bb7 cxb7 e5 d4 exd4 b5 Qf6 Bb2 Qh4 Bc1 Qd8 Kd2 c5 h4 g5 e4 c4 f4 g3 e5 d3 e6 g4 f5 g2 h5 g3 h6 Qc7 e7 Qd8 h7 Nc6 b8Q Ne5 b7 Qc8 b6 Nc6 Qc7 Qb8 Qe1 Bg7 Nf3 g1R Rh2 g2 Nc3 Bf6 Nd5 c3+ Kd1 d2 Bd3 Qd8 Ra4 Rc8 Bb1 Nb8 Qc4 Rc7 Qa2 Kd7 e8N Ne7 Kc2 Rf8 h8Q Nc8 Qh5 Rc6 Bb2 Qe7 Ba1 Qe5 Kd1 Na6 b8Q Rh8 Qa8 Nb8 b7 Qf4 Rh4 Qh2 Rhb4 Rf8 Rb2 c2+ Ke2 d1Q+ Ke3 Na6 b8Q Rh8 Qb6 Nb8 Qc5 Qc1+ Kd3 Qcf4 Ke2 Qc4+ Kd2 Qf1 Kc1 Rg8 Nec7 Rg4 Ne6 Rc4 Neg5 Rc3 Qa5 R3c5 Qb6 Rh1 Nh7 g1B Qbb3 Bf2 Qc4 Rg1 Qb7+ Rc7 Qch4 Rg2 Qb6 R7c6 Qa5 Qe5 Qh1 Qh2 Qc3 B2d4 Qa5 Bde5 Qc7+ Ke8 Rb5 Be7 Bd4 B7f6 Be3 Bc3 Rb3 Bb4 Rb2 Ba3 Bg5+ Re2 Qa5 Kd7 Bh4 Rg2 Qc7+
n2r2nr/2N4k/3QK1B1/2p1p1B1/BnR5/2N2p1Q/p1P1BBqb/RbQn4 b - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 e4 dxe4 f4 exf3 hxg5 Bf5 Bd3 Be6 Bf1 Bc8 Kf2 e5 Kg3 f5 b4 Kf7 d4 Kg7 g6 h5 d5 a5 b6 c5 b5 a4 b7 a3 b6 f2 d6 Ra4 d7 Ra7 Bg5 Bd6 Nh3 Na6 b8Q Nc7 b7 Ne7 Qc1 Ng8 Nf4 Ne7 Nd5 Ng8 Nbc3 Na8 Rh4 Bf8 Be2 f1N+ Kh3 f4 g4 f3 Qd6 Qe8 d8B Be6 b8Q Rd7 Nc7 Ba2 Qc8 Bb1 Be3 a2 g5 Be7 Rc4 h4 Kg4 h3 Kf5 h2 Bf2 h1N Ke6 Bf8+ Be7 Rd8 Qcd7 Ne3 Qc8 Rh5 Qcd7 Kh8 g7+ Kh7 Qc8 Nd1 Qcd7 Nf6 Qc8 Qg6 g8B+ Kg7 Qcd7 Rh8 Bf7 Kh7 Qc8 Qg7 Bh5 Qg6 Qcd7 Bh6 Qc8 Ng8+ Bf6 Qd3 Be7 Qd2 g6+ Kg7 Beh4 Bf4 Bg5 Bh2 Qcd7+ Ne7 Qc8 Kg8 g7 Kh7 Qcd7 Ng8 Qc8 Ng3 Qcd7 Nf1 Qc8 Nfe3 Qcd7 Nd5 Qc8 Nge7 g8B+ Kg7 Bgf7 Kh7 Be8 Ng8 Ba4 Nb4 Kf7 Qe1 Qh3 Qg1 Ke6 Qg2 Bg6+
1nBk4/b7/2P1B1p1/Knpq1N2/1rB2b2/B3pQBb/1rpQR2Q/R2bN3 b - - 0 1 illegal: No proof kernel
b3B2n/B2NqpN1/K1pR2Pr/B2NbQ1r/4N1r1/1n1p3p/1NR5/1k4Qr b - - 0 1 illegal: No proof kernel
B2Q1Q2/p1pBrB2/q3bn1B/k1n4b/N5R1/b1P2Rp1/2NbpQ2/K1B2r2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 h5 g4 hxg4 Qd3 Qe7 dxe5 Rh7 e6 Rh8 e5 Qd8 Qe4 fxe4 Kd1 g5 b4 d5 f4 d4 h4 e3 b6 g3 b5 g2 f5 d3 f6 d2 e7 Kd7 e8B+ Ke6 b7 Kd5 e6 Kc5 f7 Kb4 b6 g4 e7 g3 h5 Bh6 f8Q Nc6 b8Q Rh7 b7 Rh8 Qf2 Qd3 Ra3 Nf6 Nf3 g1B Bg2 Nh7 Nd4 Qc4 Bf7 Bf8 e8B Qd5 h6 Bf5 Nc3 Qc4 Qd8 Na5 b8Q+ Nb7 Na4 Nf6 h7 Be6 Rh4 Qa6 Rg4 Ka5 Bd7 Nc5 Bh1 Rg8 h8B Rg7 Rd3 Rh7 c3 Bh6 Kc2 d1B+ Kb2 Bf4 Bh5 Re7 Ka1 Bf3 Qbc8 e2 Nc2 Bd2 Bf7 Rb8 Bg7 Rb4 Re3 Rf4 Bh6 Rf5 Rge4 Bh5 Rg4 Rf4 Ba8 Rf5 Qh2 Rf1 Rf3 Bge3 Qb8 Bf4 Qf2 Bd6 Rff4 Nce4 Qf8 Ba3 Rf3 Nc5 Qbd8
2Rq2n1/2pBb1RR/R2Qbr2/N1kq1p2/p1b1n3/2NR1P1n/p1K4B/2Q4N b - - 0 1 legal: proof: c4 g5 e4 a5 d4 d5 cxd5 b6 h4 gxh4 d6 Kd7 e5 Ke6 d5+ Kf5 a3 b5 a4 Ra6 d7 Rd6 exd6 bxa4 Qb3 Kg6 Qd1 Kf6 Kd2 Ke5 b4 Kd4 g4 e5 f3 f5 g5 h5 g6 a3 b5 e4 g7 h3 b6 h2 b7 h4 Nc3 e3+ Kc2+ Kc5 Nge2 h3 Ng3 e2 Bf4 e1Q Qc1 Rh4 Bb5 Na6 b8N Qe6 Nc6 Rh6 Be5 Be7 Ba4 Qe8 d8R Rf6 d7 Qf8 d6 Qd5 Rb1 a2 Rb6 Qe8 Bb5 a4 Na5 Kb4 Bf4 Nc5 Ra6 Ne4 Be5 Kc5 Bc6 Nh6 g8R Qf8 Rg7 Ng8 Rh7 Qe8 Rg1 h1B Bf4 Bg2 Nh1 Bf1 Rgg7 Bc4 Bh2 Bb7 Rb8 Bc8 d8R Be6 d7 Qf8 Rdc8 Qe8 Rb3 Qd8 Bg3 h2 Ra3 Qe8 d8Q Qed7 Qf8 Qe8 Bd7 Qd8 Nf2 h1N Bh2 Nhg3 Nh1 Nh5 Ne2 Nf4 Rd3 Nh3 Nc3 Rg6 Qf6 Rh6 Qe5 Rf6 Qd6+
5b1K/1npN3b/kpN4B/2BR3p/1r1nB3/1n3NB1/2P1pBb1/R1rQ2Qr b - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 f5 Nh3 d5 Ng1 dxe4 gxf5 g4 Bg2 Qd6 Bh3 Qf4 Bf1 Qg5 hxg5 Kd8 Rh2 Kd7 Rh1 Ke8 Ke2 Kd7 Ke3 Kc6 Kd4 Kb6 Ke5 h5 f4 b3 a4 e6 d4 b2 g6 g3 d5 e3 g7 g2 d6 e2 f6 e1N a5+ Ka7 f5 Ne7 g8Q Rh7 f7 Rg7 Kf6 e5 a6 e4 d7 e3 d8B e2 Bh6 Nd3 Na3 b1B Nf3 g1R Bg2 Ne1 Nb5+ Kb6 a7 Nec6 Nbd4 Na5 Nc6 Ba2 Bf4 Rg5 Bg3 Na6 Qg6 Rb8 a8N+ Kb5 Nb6 Bd5 Nd7 Nb3 Be7 Rg4 Bc5 Rb4 Bcf2 Nac5 Rh4 b6 Rd4 Rh1 Qg7 Be4 Rd5 Ra8 Kg6 Bd3 Kh7 Bb7 Kh8 Be4 f6 Bh7 Qg5 Ra2 Qg4 Ka6 Qg8 Ba8 Qg5 Nb7 Qe3 Be7 f8B Ra3 Bh6 Bf8 f7 Ra5 Nfe5 Nf3 Qec1 Nfd4 Be4 Ra3 Nf3 Ra2 Na5 Rb2 Qg1 Rb1 Qcd1 Be7 f8B Rc1 Bfg7 Bf8 Bf6 Nd8 Be7 Bc6 Bc5 Nb7 Re5 Bd5 Rg5 Be6 Re5 Bh3 Rd5 Bg2 Nc6+
bR3RBk/Rn6/3rn1p1/1pr1q1p1/n1Q2pNR/1Q3PB1/N2N2r1/3KR2r b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h6 b4 axb4 d4 e6 g4 Ra4 e5 Bd6 exd6 Ra8 g5 hxg5 h4 Kf8 a4 f5 d7 b5 a5 c5 d6 e5 a6 g6 f3 Kg7 d5 b3 h5 e4 a7 b2 Bf4 c4 Rh4 e3 Bg3 f4 Nd2 b1N Ne2 c3 Qb3 c2 Nc1 e2 Na2 Qf6 d8Q Nc6 d7 Bb7 d6 Nc3 Qc8 Nd4 d8R Nh6 d7 Nf7 Qcc4 Na4 Rf8 Rd8 a8R Qe5 Ra7 Nd6 h6+ Kh7 Bh3 Ba8 Be6 Nb7 Rd1 c1R Bd5 Rc8 d8N Rc5 Nf7 Rc2 Rb8 Rd8 Be6 Kg8 h7+ Kg7 h8R Rd6 Nh6 Rb2 Bf7 Ne6 Rhf8 Rc2 Bg8 Kh8 Kf2 e1R Ra1 Rh1 Re1 Qf5 Ke2 Qe5+ Kd1 Nd4 Nf1 Rg2 Nd2 Ne6 Ng4+
R1n5/2QNrQR1/K1RB1Rpr/Q5p1/3n2k1/1pNp4/BP2qn1b/1R3qn1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 g4 h6 g5 hxg5 Qg4 b4 Qf3 Ba6 Qd1 Bb5 axb5 Qc8 Kd2 Qc7 Ke1 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 e5 h4 a5 f4 e4 b6 d5+ Kb5 g6 c4 e3 c5 e2 c6 e1Q h5 a4 c7 d3 c8R d2 h6 a3 b7 d4 h7 a2 Rc6+ Qd6 Qa4 d1N Nf3 Qd2 Qa5 Qe3 Bc4 d3 Ne5 Qe4 Nc3 Ra7 Rb1 a1N Ba2 Nd7 b8Q b3 Qbc7 Nc2 Rh4 Rb7+ Ka6 Ne7 Be3 Qg2 Bc5 Qe6 Bd6 Nc8 Rh1 Nf2 Rhc1 Rg8 h8R Nd4 Rch1 Qf1 R1h7 Be7 Rg7 Rf8 Rhg8 Rf7 Rd8 Rf8 Re8 Rh8 Reg8 Rh6 Rh8 Ncb6 Ra8 Nc8 Qd8 Rb5 Ba3 Nf3 Qdc7 Nf8 Bc5 Bd6 Bb4 Ng1 Ba3 Qf7 Nd7+ Ke7 f6+ Ke6 Bb4 Qe8 f7 Kf5 Ba3 Ne6 f8Q+ Kg4 f5 Qe7 f6 Nd4 f7 Bh2 Bd6 Qee2 Qe7 Re5 f8R Re4 Rf6 Re3 Qf8 Re7 Qf7
nQ1k4/2rp4/KP2r1p1/1pp2r1R/RB1NNbb1/p5RR/R2Qn3/3qBB2 b - - 0 1 illegal: No proof kernel
2R4n/N1prBN2/2B1p1pk/1q1QRRbr/B2PnQb1/1B2K3/p1B4p/4n3 b - - 0 1 illegal: No proof kernel
1BK2N2/2p1pN1B/Bq3r2/B1p4b/1pR1Q1Qr/b2k2R1/1Pn2r1p/Q1B2n2 b - - 0 1 illegal: No possible last move
Q1B3B1/QP2B2Q/bK1R4/BnpR1pbp/2q1ppb1/3rB3/1r6/NN3nk1 b - - 0 1 illegal: No proof kernel
1KnbQ2N/NP2p2p/2B1prpq/1QR3p1/rn4b1/4k1B1/5BQ1/R2Bb1B1 b - - 0 1 illegal: No possible last move
4q1Qq/2p1pnrp/2B5/N1Bb1N2/1R1b1pB1/2kQ2r1/R3PrBp/2B1K2N b - - 0 1 legal: proof: c4 g5 f4 d5 h4 gxh4 a4 dxc4 g4 b5 axb5 Kd7 g5 Nc6 f5 Ne5 Ra4 Ng6 fxg6 Ke8 Ra5 Qd3 Ra1 Qd8 b4 Kd7 d4 Ke6 b6 Kd5 g7 f5 g6 a5 b7 h3 b8B f4 b5 a4 b6 h2 b7 a3 Bg2+ Kd6 d5 Kc5 d6 Kb4 d7 c3 Nf3 a2 Nh4 c2 Nc3 Ra3 Qd3 Nf6 g8B Ra7 g7 Qe8 d8N Ne4 Be6 Ng5 g8B Bg7 Ne4 Be5 Nf2 Ra3 Nf5 Bd4 Ba7 Nf7 b8Q+ Bb7 Bed5 Rc3 Bc6 Rb3 Rb1 a1Q Rg1 Qb2 Nh1 Rc3 Bc5+ Kb3 Qa6 Rg3 Qc8 Ba8 Nb7 Kc3 Na5 Qa1 Rb4 Bb7 Ba4 Bd5 Bc6 Nd8 Qe6 Be5 Bf7 Rhg8 Kf2 Qb2 B1e3 c1R Re1 Kc2 Bh5 Qc3 Qg6 Nf7 Bg4 Qd4 Rd1 Kc3 Rd2 Bh8 Ra2 Rg1 B2h3 R1g2+ Ke1 Rf2 Bc1 Qg7 Bf1 Qgf8 Qg5 Bd4 Bg2 Qg7 Qb5 Qh8 Qg6 Re3 Qg7 Rg3 Qf8 Rg5 Qg8 Rg7 Qd3+
3QBk1R/K4ppB/4bn2/B1NR3p/1BR2n1P/2p1Nr2/1bb1rp1p/2QB4 b - - 0 1 illegal: Other
2b1BN2/2n3N1/1q2N1K1/N2B2br/2R1Q2P/Nprb3p/b5RN/3kr2N b - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 c5 cxd5 f5 exf5 g5 hxg5 Ra6 Bb2 Ra7 Bc1 Ra8 g3 h5 Rh2 c4 Be2 c3 Ba3 h4 Bg4 h3 Bb2 cxb2 Rh1 Nd7 Be2 Ne5 Bc4 Ng6 Bf1 Nh4 gxh4 Qc7 Qb3 Qd6 Qd1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kd6 a4 e5 f4 b5 g6 b3 a5 b4 f6 Nh6 f5 Ng8 a6 Rh5 a7 Nh6 f7 Be7 f8N Qc7 f6 Rf5 g7 Qc5 g8N Qb5 f7 Qd7 Ne6 Ng4 f8N Nh2 Nf3 Qb7 Nh6 Qa6 Bb5 Rf7 Ra2 Rf5 Be8 Qa5 Qe2 Qb6 Ng4 Rh5 Nf2 Ng4 Na3 Bg5 Kf5 b1B+ Qe4 b2 Kg6 b3 Nh2 Bd3 Ng7 b1B Rc1 Ne3 Rc4 Rb8 Rd2 Ba2 a8B Rb7 Nh1 Rc7 Rg2 Rc6 Ra4 Rc2 Rc4 Rc3 Qf5 e4 Bac6 Ng4 Bb7 e3 Qe4 e2 Ba8 e1R Bac6 Kc7 d6+ Kd8 d7 Kc7 d8N Kd6 Ba8 Ne3 Nc6 Nd5 Na5 Nc7 d5 Qg1 Ra4 Kc5 d6 Qd4 d7 Qb4 Qf5+ Kd4 d8N Ke3 Nde6 Qd4 Rc4 Qb6 Rg3+ Ke2 Bd5 Kd2 Qe4 Kd1 Rg2
1N1bQ3/K1R5/Nrbn3b/1Bb2Rk1/B1N3Nb/2Nn1r2/n2P1N2/N4nq1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 e5 Kd3 Ke7 Kc4 Kf6 h4 a5 g7 c5 b4 f3 h5 g4 d6 a4 b6 g3 Kb5 e4 h6 e3 h7 e2 d7 e1N b7 f2 Nh3 g2 Nc3 g1B Qh5 a3 Rc1 c4 Qe8 Qc7 d8N a2 Ne6 a1B Nd4 Qd6 Nb3 Nh6 g8B Na6 b8N Qg3 Kb6 Nd3 b5 Nab4 Na6 Rb8+ Ka7 Bb7 b6 Bc6 b7 Na2 Be2 f1N+ Nf2 Qg2 Rh5 Nf7 Rg5 Bb2 Na1 Nd6 Bf7 Rg8 h8N Bh6 Ng6 Rf8 Ne5 Bh2 Bd1 Bg3 Ba4 Qg1 Bh5 Bh4 Be2 Ba3 Rh5 Bb4 Rc2 Ba5 Ng4+ Kg7 Rc1 Bad8 f6+ Kh7 f7 Kg6 Nb1 c3 Rf5 c2 Nc3 Nc5 Beb5 Nd3 Re1 c1B Re7 Ba3 Rc7 Rc8 b8N Bb4 Nd7 Rb8 Nb6 Ba3 Nc4 Rb6 Rf4 Bc5 Rf3 Rh8 f8N+ Kg5 Nd7 Rf8 Ndb8 Rf4 Re3 Rf6 Ree7 Rf5 Rf7 Rf3 Rf5+
R4bk1/Rp1b4/1RRqqbR1/Rr2q3/Pq2r3/NN6/QB3rB1/3n1RK1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ne5 h5 Ng6 hxg6 Ra8 Kf2 h5 a4 c5 d4 e5 d6 e4 f6 c4 g7 Kf7 d5 b3 d7 f3 d6 c3 Be3 b2 Qc2 h4 Bc1 h3 Bg2 h2 Na3 b1Q Ne2 Rh5 Bb2 Nh6 g8R Nf5 Nd4 Ne3 Rg6 Nd1+ Kf1 e3 Nb3 Qb6 d8R f2 d7 Qe6 Qe2 Qd3 Rc1 c2 Rh6 Kg8 g6 Qdc4 g7 Rb5 Re8 Qc7 d8R Qce5 Rd6 Bd7 Rb6 Rd8 Rg1 h1Q Qc4 Qhh2 Rh1 Qhf4 R1h5 Ra8 Qe2 Raa5 Ra8 Q6d6 Ra7 Qfb4 Rg5 Qee6 Rf5 Re5 Qd2 Re4 Rc5 Rb5 Rcc6 Kf7 g8R Qee5 Rb1 c1B Rg5 Qee6 Rd5 Kg8 Qc2 Bd2 Rdh5 Bc3 f7+ Kg7 Rc1 Bf6 Qb1 Qee5 Qa2 Qee6 Rc8 Qee5 R1c6 Qee6 Rca8 Qee5 Bh3 e2+ Kg2 f1R Rf5 Rf3 Kg1 Rf2 Bg2 B8e7 f8R e1Q+ Bf1 Qe2 Bg2 Qec4 Rfh5 Qce6 Rf5 Rc2 Rf1 Rf2 Rfh8 Kf7 Ra5 Bf8 R8a7 B8g7 Rb8 Bf8 Rba8 Kg8 Rg6+
2Nr1B2/1BbRp2P/2nrN3/qbN1pK1N/N4R2/q2rq1N1/6n1/1N1k1Q2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 b5 cxd5 f6 e4 axb4 a4 Na6 axb5 Nb8 e5 fxe5 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 f4+ Kh4 d4 c5 d6 g5 d5 c4 f5 b3 h6 c3 h7 c2 f6 g4 d7 b2 d6 g3 f7 g2 b6 Nc6 b7 Na5 b8N Qb6 d8N Qa7 d7 Qb7+ Kf5 Qb4 Na6 Qd2 Nc6 Bh6 f8N Nf6 Qe2 Ne8 Qf2+ Kh5 h4 Nc7 Ra4 Qd5 Nc5 Bd2 Ne2 g1Q Nfe6 Ba6 d8N Bb5 Rf4 Ra6 Na7 Rd6 Nc8 Nc6 Ndb7 Rhd8 h8N Ba5 Ng6 Bb6 Be3 c1Q Na4 Qg3 Bd2 Qa3 Nbc5 Qda2 Bg2 Nd5 Rh3 Bc7 Rd3 Qe1 Bc1 Q2b3 Rd1 Qe3 Be4 Qa5 Bh1 Nf6 Rd2 Ng4 Ng3+ Kh6 h5 Rd3 Nbc3 b1R Rd1 Rb3 Nb1 R3d6 Rdd4 Rd3 Be4 Nb4 Bb7 Nc6 Rd5 Nh2 Bd2 Nf3 Rdd4 Ne1 Rd5 Kh7 h6 Ng2 Rdd4 Kg8 h7+ Kf7 Ng5+ Kg7 Nge6+ Kh6 Rfe4 Rc3 Ngf4 Rd3 Nfh5 R6d7 Nf8 Qf4+ Ke6 Kg5 Rd5 Kg4 Red4 Qe4 Bh6 Kh3 Bg7 Qe3 Kf5 Kh2 Nfe6 Kh3 Bf8 Kh2 Qb2 Kg1 Qc1+ Kf2 Qc2+ Ke1 Qf2+ Kd1 Rf4 Rd6 Nd4 Rh6 Rd7 Rd6 Nde6 R6d4 Nge4 Rd5 Neg3 Rd6 Qf1+
2b1n3/kN1R4/2q1rR1p/6n1/p3P1NR/2B1rRq1/1B1p1p1Q/KR2r1RR b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 g5 hxg5 b5 axb5 e6 g4 Bd6 f4 Na6 g6 Bc7 g5 Bd6 Bh3 Nb8 Bf5 Be5 fxe5 exf5 Kd2 a5 c4 d5 Kc2 Kd7 e4 Kc7 b4 Kb7 Kb2 d3 b6 h6 c5 d2 b5 d4 e6 f4 e7 f5 e8R d3 g7 f3 g6 a4 Rh4 f2 Re7+ Qd7 Qc2 d1R Nd2 f1Q Nc4 f4 Nf3 Qe1 Qh2 d2 Nfe5 f3 Ng4 Na6 Nd6+ Kb8 c6 f2 b7 Qc7 Rd7 Qa5 c7+ Ka7 b8B+ Kb6 Nb7 Ne7 g8R Nd5 g7 Nf6 Rf8 Nh7 g8R Ng5 Rf3 Qe3 Rgf8 Qc5 R8f6+ Qc6 Ka2 Rg1 Bb2 Rg8 Bc3 Rg3 Rh1 Re8 Kb2 Re6 Ka1 Rh3 Bb2 Qac3 Rg3 Ra7 Na5 Nc5 Rgg1 Qe5 Bd4 Rb7 Rd8 Bd7 c8R Qcd5 Rc7 Bc8 Rdd7 Qed6 Be5 Na6 Rc3 Q5c5 Bd4 Qc6 Bbe5 Nc7 Rcg3 Ka7 b6+ Kb8 Rb3 Q5d6 Rc3 Ne8 Rb3 Ra7 b7 Ra6 Rd3 Rb6 Rdg3 Ka7 b8R+ Qdc7 Ra3 Rc3 Rb3 Rc1+ Rb1 Re1 Bb2 Rb4 Rb5 Rc4 Nb7 Rc3 Rb3 Rf3 Rbd3 Q7d6 Bec3 Qg3 R3d5 Rd3 Rdf5 Rde3 Rf3
2b1KR2/rNP2N2/3BB3/r1R1B2p/2B2qB1/qp1Qpr2/2B1rkp1/nB6 b - - 0 1 illegal: No proof kernel
1q4qN/BP1B4/k3n1bK/br2n1nB/3B3R/Qb5B/1N2rBRB/q2b2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8B a3 g5 a2 d5 h3 d6 c2 g6 Rh5 g7 Na6 Nd2 Nc5 Ne2 Ne7 g8B Ne6 Nc3 Ng6 Rg1 h1B+ Bg2 h2 Bb2 c1B Nde4 Bd2 Na4 Ba5 Bd4 Be7 Rc1 a1Q Nb2 Qc7 d8B Qb8 d7 Bc5 Ng5 Ne5+ Ke2+ f3+ Ke3 Qa2 Bh3 f2 Rc4 f1Q Qc1 Bd5 Nf7 h1B Nh8 Bhf3 Bgf7 Bd1 Bh4 Qg2 d8B Qa1 Bd7 Qg8 Ra4 B5b3 Rg2 f4+ Ke4 f3 Bc7 Rg5 Bh5 f2 Rc4 f1N Bhf2 Nh2 Ra4 Rg4+ Kf5 Re4 Qe3 Nhf3 Rc4 Nf7 Bh2 N7e5 Qd3 Re2 Rb4 Bd5 Qa3 Nfg5 Kf6 B5b3 Rc4 Ra6 Kf5 Ka8 b7+ Ka7 Ra4 Rd6 b6+ Ka6 Rc4 Rd5 Rb4 Qd6 b8B Bb7 Ba7 Qdb8 Ra4 Bc6 b7 Bb6 Bc3 Rb5 Rh4 Be4+ Kf6 Be3 Bcd4 Bg6 Bfg3 Nc5 Be1 Bg1 Bef2 Qd5 Kg7 Qdg8+ Kh6 Nce6 Qa4 Be8 Qa2 Bg6 Qa3
q1B1b2B/4n1N1/1R1b1B2/RB5B/3Q2bq/rP1b1r1b/Nrb2BB1/K1kn4 b - - 0 1 illegal: No possible last move, all moves rejected
4rN1K/N3n1r1/3R1q1R/q3B2r/R2RR2b/3BrR1n/1qQk1Pb1/Rn4n1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 h5 d4 c5 b6 a5 b3 e3 g5 c4 b7 a4 g6 c3 g7 c2 d6 h3 d7 e2 d5 e1Q+ Be2 h4 d6 a3 Ke6 a2 Kf7 e5 Bh5 e4 Nf3 e3 Rg1 h2 Ng5 h1N Rg3 e2 Bb2 c1Q Be5 h3 Nc3 h2 Rb1 a1N Nh7 Ra7 Nb5 Na6 b8R Bb7 Bg6 Nc2 Ra1 Na3 Ra8 Qb2 Qc2 Nc7 Rd3 Qg5 d8R Bg2 d7 Nd5 Rf3 Ng3 Be4 h1R Bf5 Ngf6 g8R Nb1 Rg6 Ng8 Rh6 Nf4 Bg6 Be7 Kg7 Rc7 R8a3 Rh5 Na7 Qd2 R3a2 e1R Ra3 Qdc3 Ra4+ Kc5 b4+ Kc4 Nc8 Qh4 Na7 Re3 Bf5 Nh3 b5+ Bb4 b6 Ne2 b7 Neg1 b8R Rb7 Raa6 Be7 Bd3+ Kb4 Rbc8 Qc7 R6a3 Qa5 Rcc6 Qf4 Rcg6 Bh4 Rg4 Nf6 R3a2 Re8 Nf8 Ng8 Kh8 Rc7 Qc6 Kb3 Ra4 Qf5 Rge4 Rb7 Bc4+ Kc2 Bd3+ Kd2 Qc4 Rb6 Qc8 Ne7 Qc4 Rg6 Qc2+ Ke1 Rb8 Qf4 d8R Rg7 Rbb4 Qg5 Rd6 Qf6 Qc7 Kd1 Rbd4 Kd2 Qc2+
1QR2B2/q3Pbn1/r1B1N1rb/2Nqnq1q/N6N/3NNR1k/1K6/1Nn3rr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 b4 a5 e4 c5 g4 f3 g5 h3 b6 c4 d6 Ke6 e5 h2 b5 f2 b7 f4 d5+ Kf5 e6 h4 e7 f3 b6 Kg4 d7 h3 g6 a4 g7 a3 d6 a2 Qb3 Ra6 Bg2 f1Q Kb2 f2 Bh6 Ra4 Nf3 Rh7 Nh4 Qe8 d8N Ra6 d7 Nc6 b8N Ne5 b7 Nf6 g8N Nh5 Nbc6 Ng7 b8N Qh5 Nb7 Rh8 d8N Be6 Bd5 Bf7 Nd7 Qg2 Rd1 h1R Rc1 h2 Nb4 Rg1 Ndc5 h1R Nbd3 Kh3 Bc6 Qd5 Na4 f1Q Ne6 Qff5 Nf6 Rg8 Nbc5 Rg6 Qb8 c3+ Ka3 c2 Kb2 Rgg1 Rf1 c1N Ng4 Ne8 Ne3 R8g6 Bg5 Bh6 Bf6 Bg5 Bg7 Bh6 Bf8 Ng7 Na3 Ne2 Rae1 Nc1 Nb1 Nb3 Rc1 a1Q+ Kc2 Qa2+ Kc3 Qaf2 Rc2 Nc1 Kb2 Qh2 Rf4 Qf2 Rf3+ Kh2 Nb3 Ne8 Bb7 Rb6 Neg2 Ng7 Ba8 Qe3 Rc8 Ra6 Bc6 Qec5 Ne3 Qa7 Rf4 Kg3 Nbc5 Kh3 Rf3+
1r6/2N2KNN/N1n2B2/1bq5/2Rr2Pr/1rb1p3/BRNq1QNq/r2kN1n1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 e3 g4 h3 f5 a4 b6 h4 b5 h2 b7 h3 f6 a3 f7 e2 b6 e1R Bb2 a2 Qf3 Ra4+ Bc4 Bd7 Qf2 Re3 Nf3 Nh6 Rc1 h1Q Na3 h2 Rab1 a1R Nc2 Rb3 Nfe1 Bb5 Bc3 Qg2 Rb2 h1R d3 Qh2 Ke4 e5 d4 Rbb4 Ba2 Bg7 f8N c5 Nh7 Nc6 b8N c4 b7 Nf7 Kf5 e4 Kg6 e3 Na6 Rb3 b8N Ng5 Nc7 Nf3 Kf7 Ng1 Nba6 Qg5 Qh4 Rb8 Qf2 Kd7 d6 Qc5 d5 Rab4 Bd4 c3 Bf6 Rd4 Ng2 Bh8 Nce1 c2 Qf1 Kc8 d7+ Kb7 d8N+ Kb6 d6 Ka5 d7 Ka4 Nde6 Ka3 d8N Ka4 Rd1 c1Q Qf2 Qd2 Ng7 Ka3 Nde6 Ka4 Rc2 Ka3 Rc4 Kb2 Rb4 Kc3 Rc1+ Kb2 Nc2 Kc3 Neg5 Kd3 Nf3 Kc3 Qg3 Kd3 Rb1 Ke2 Rb2 Kd1 Nfe1 Qh6 Qf2 Rh4 Rc4 Qf4 Nh5 Qh2 Bd8 Rd5 Be7 Bc3 Ng7 Rd4 Bf6
Bn1q2RB/RRRrp3/1b1bq1Q1/PN3k1b/N1nR2q1/q2q3r/5K2/1R5R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 g4 c5 f4 h5 a4 b5 g5 h3 a5 c4 d6 b3 f6 Ke6 f7 h2 d5+ Kf5 d7 h4 d6 b4 g6 c3 g7 c2 Qd4 b2 Ne2 b3 Nec3 h3 Rg1 h1Q Kf2 h2 Bg2 Nf6 g8R Ra7 Qb6 Nd5 Na4 Bg7 Na3 b1Q Bb2 c1B Nb5 Qe4 Rb1 Qe6 f8R+ Bf6 Be5 Ne3 Ba8 Qe4 Rh1 Rh3 Re8 Bg5 Bh8 Ba3 Qa6 b2 Ref8+ Kg4 f5 Nc4 f6 Kf5 f7 Qg4 Re8 Bb7 f8R+ Bf6 Qb6 Bf3 Qc6 Qge4 Qb6 Bh5 Qa6 Qg4 Qb6 Qc8 d8R Rd7 Qa6 Qc7 Rc8 Qd8 Rc7 Bb4 Rg6 Ba3 Rfg8 Bc3 Rb7 Be5 Rh6 Bg7 Rhc1 h1Q Rc3 Qc1 Rh7 Ne3 Rcc7 Bd4 Ra7 Bb6 Rcb7 Qdc7 Rc8 Qd8 Rcc7 Qc3 Rd1 b1Q Rh6 Qbd3 Rb1 Bac5 Rh7 Qe8 Rh6 Qa3 Rh7 Rd8 d7 Bd6 Rh6 Rc8 d8R Nc4+ Nc5 Qf8 Rdd7 Rd8 Rh7 Be5 Rd4 Rd7 Na4 Bd6 Rh6 Bbc5 Qc6 Bb6 Qg2 Qd8 Qg3 Bf7 Rh4 Bh5 Qg2 Rg3 Rhh1 Rh3 Qg1 Qgd1 Qg7 Qg4 Qg6+
r3n3/1p3q1r/3Pb3/1qRB1q1Q/bB1N1RRb/3RK1NR/1qR5/1R2n1kq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 g4 Kf6 a4 Kg5 f6 Kf4 d6 c5 f3 Kg3 d4 e5 d5 h5 f7 h3 d7 c4 f4 c3 d6 h4 g5 h2 a5 e4 a6 c2 a7 b3 g6 b2 f5 h3 f6 e3 g7 Qe7 d8R Nd7 Nc3 b1Q Bd2 c1Q Bg2 Qcb2 Nf3 Rh7 Nd4 Ne5 Bd5 Nf3 Ne4+ Kg2 Ng3 Qf5 Rb1 Be6 Rc8 Qd7 Rcc1 Be7 f8R Qdb5+ Rc4 Bd8 f7 Nf6 g8R Ne8 Rg4 Be7 Rh8 Bh4 f8R Qf7 Kd3 e2 Bb4 e1Q Rf1 h1Q Rf2+ Kg1 Rc2 Qf1+ Ke3 h2 Rc5 Ne1 Qf3 Rc8 a8R Qf5 Ra3 Ra8 Rd3 Qf7 Qe2 Q1f5 Rdd1 Qg2 Rd3 h1B Rf4 Qh2 Qh5 Bf3 Rfg8 Bd1 Rgg4 Qh1 Rh2 Ba4 Rh3 Ng7 Rhc8 Ne8 R8c6 Qg7 Rc2 Qgf7 R6c5
R1r2qb1/1N2B2B/2BrQ3/1r1nr3/3prn2/BrP2K2/1kqB2Nb/3RB2B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 h4 Ke6 b4 Kd5 h5 Kc4 e4+ d3 c3 f5 h6 g5 b6 d5 b7 a5 e6 f4 b5 a4 e5 g3+ Kg2 f3+ Kh3 g2 Kg3 g4 h7 f2 b6 a3 e7 a2 e8B d4 e6 Nf6 e7 Na6 b8B Nb4 b7 Ra6 Bc7 Nh5+ Kh4 g3 b8B Nf4 Nh3 g1R Bd6 g2 Kg3 Be6 Qe2 Kb3 Bc6 d2 e8B d1Q Na3 Nbd5 Kf3 Qc2 Bg6 Bg8 Bd2 Kb2 Qe6 Be7 Bc4 Qf8 Nb5 Rb1 Rd1 g1R Bb4 Bf6 Nd6 Rg5 Nb7 Be5 Bcd3 Bd6 Bde4 Re5 Bc7 Ra5 Bc5 Rb5 Ba3+ Kb3 Bd8 Rb2 Bh4 f1R+ Bf2 Re1 Bgf5 Re2 Bfe1 Rb1 Kg4 Bc7 Bh1 R2e4 Kf3 Rb2 Nf2 Bd6 Ng4 Bb8 Ne3 Bc7 Rac1 a1R Ng2 Raa2 Ra1 Bd6 Bb4 Ra6 Bg6 Rab6 Ra8 Bb8 Ba3 Ka2 Bce8 Rd6 Bc6 R2b3 Bf5 Bf7 Bg6 Rg8 h8B Bc7 Bc5+ Kb2 Bf6 Rh8 Bd8 Bg8 Be7 Rh7 Bf7 Nd3 Bf4 Rf5 Bf2 Rd8 Qc8 Rh6 Be1 Rhe6 Qd7 Rc8 Bg6 Be5 Bb4 Rd6 Qe6 Rg5 Bf5 Rh5 Bfd2 Bh2 Bc5 N3f4 Bh7 Rhe5 Ba3+
1r2b2n/1Nqk2qn/2P1p1B1/1n2BN1b/4Q3/R1N1RNr1/1N1K1bqp/N6N b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 b4 h5 g4 a5 f4 e6 c5 a4 f6 h3 g5 h2 b6 a3 f7+ Kd7 g6 h4 b7 d3 b5 a2 g7 h3 b6 d4 f5 Qc7 f6 Qd6 Nf3 Ne7 g8N Qd5 Bf4 Na6 b8N+ Kd8 b7 Rh5 Nc6+ Kd7 Nc3 Nb4 Qb1 Bg7 f8N+ Ke8 b8N Qd7 Be5 Nbd5 Kd2 Ng6 Na6 Rb8 Nh7 Nh8 Nh6 Qc7 f7+ Kd7 Nf5 Nf6 Na5 Rg5 Nb4 Rg3 Nhg5 Nh7 Nge4 Bb7 Rg1 h1Q Nf2 h2 Nc2 Bc6 Nb7 Qg2 Qe1 Bf6 Qe4 Bh4 Re1 a1Q Re3 Qa7 Na1 Bb5 Be2 Ba4 Nh1 Bb5 Kd1 d2 Bd3 Bc6 Kc2 d1B+ Kc1 Be2 Kd2 Ba4 Bc2 d3 Rb1 Bc6 Rb3 Bb5 Ra3 Ba4 Kc1 Bc6 Bb1 d2+ Kc2 d1N f8N+ Kc8 Kd2 Be8 Ng6 Kd7 Nb5 Nc3 Nf4 Nf7 Nd3 Nh8 Nb5d6 Nb5 Nb2 Rg6 Bc2 Bf2 Bd3 Rg3 Bb1 Nd4 Nb5 Bd1 Nc3 Nb5 Ng5 Bg4 Nf3 Bgh5 Qd4+ Nd6 Ne7 Qcb6 Nd8 Kc7 Bg6 Qbb7 Qe4 Qc6 Bf6 Nb5 Nf5 Kc8 Be5 Qg7 Nb7 Kd7 Bf6 Qc8 Be5 Qc7 c6+
4q3/bKpQN3/P1rRBBR1/1N4RR/p1qq1R1b/5b2/Rn2k2n/2r1R2n b - - 0 1 illegal: No proof kernel
Q2KB2r/3B3B/r2b2qb/N2Bp1n1/bbRkP3/1R1bnB1p/1N2rB2/3B4 b - - 0 1 illegal: No proof kernel
NQ2nR1B/1N1Kp1n1/Rr1b4/2kn1n2/r2R4/3RPqrR/p2B1Rb1/1n1R4 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Bg2 h3 Qd1 hxg2 d4 Kd7 Kd2 Kd6 Ke3 c5 Kf4 a5 h4 g3 b4 g6 h5 a4 h6 a3 b6 c4 b5 a2 e3 c3 h7 c2 b7 Nf6 b6 Ng4 Nf3 g1R Ne5 g2 Nc4+ Kd7 d6 Kc6 d7 g5+ Kf5 Ra4 Ke6 Nh6 f4 g4 d5+ Kc5 d6 g3 f5 Bg7 f6 Na6 b8R Qf8 f7 Bb7 d8R Be5 d7 Nf5 Nc3 Bd6 Bd2 c1N Na5 Nd3 Ra8 Ndb4 Qb1 Nd5 Nb5 Rg8 Qb3 Rb1 h8B g1N Rh3 g2 Nc7 Rg3 Qb2 Bc6 b7 Nf3 b8R g1N Rb4 N3h4 Rf4 Ngf3 Qb8 Rb2 Rd1 Rb6 Rd4 Bb7 Rc8 Bc6 d8R Bb7 Rd3 Ng7+ Kd7 Nhf5 Ra7 Ba8 Rd4 Bb7 Na8+ Nac7 Ra6 Rg6 Bc3 Nd2 Rd3 Nb1 Bd2 Rg3 Rd4 Qg8 f8R Qh7 Rf6 Qh5 Rdf8 Qe2 Rcd8 Nce8 R6f7 Nb4 Rf6 Bg2 Rd3 Nd5 R6f7 Nh4 Rf2 Qf3 Nb7+ Kc4 Rf4+ Kb5 Rfd4 Nhf5 Na5 Kc5 Rc8+ Nec7 Rf8 Nce8 Nb7+
b1BBB2R/r2p2kn/b1bP1q1B/4N1B1/1B2Bnr1/1p4b1/4r3/NQ1R1n1K b - - 0 1 illegal: No possible last move
RBqbR1n1/1nq3kq/1p4R1/2r1N2B/2p1RQR1/q2rqb1R/2NP4/1K5R b - - 0 1 illegal: No possible last move, all moves rejected
r6N/1B3n1N/2rq4/k1N2nr1/3pNRq1/2NPB1n1/nKp1N1N1/1QR1b1q1 b - - 0 1 legal: proof: b4 e5 c4 g5 a4 b5 cxb5 d6 f4 exf4 h4 gxh4 a5 Qg5 a6 Be7 b6 Bf8 b5 Bb7 axb7 Qd8 g4 Kd7 e4 h5 d3 f5 Kd2 c5 Kc2 a5 e5 f3 g5 f4 g6 d5 g7 d4 Kb2 h3 Kb3 h4 Ra2 a4+ Kb2 f2 Qe1 a3+ Ka1 h2 Be3 c4 Bg2 f1R Rf2 c3 Ne2 c2 Nbc3 h3 Qb1 a2 Kb2 Nh6 g8N f3 Ne7 Rg8 Nf5 Bb4 Nh4 Na6 b8N+ Kc8 e6 Kb7 e7 Qd6 e8N Rg5 Nf6 Nf7 Rg1 h1N Nbd7 h2 Nh7 Ng3 Ndf6 h1Q Nfe4 Qh3 Bh1 Re1 Ng2 Nf5 Rff1 Qg4 Rf2 Kc8 b7+ Kc7 b8N Kb6 Nd7+ Ka5 b6 Rf1 b7 a1Q+ Kb3 Re1 b8N Rf1 Ndf8 Re1 Rff1 f2 Qb2 Qd1 Ng6 Qa1 Nh8 Rb1 Na2 Be1 Nac3 Nb4 Nd7 Na2 Ndc5 Qh4 Ka3 Qg4 Qc1 Rb6 Qb1 Rc6 Kb3 Bd2 Rc1 f1N Ka3 N1g3 Rgf1 Be1 Rf4 Qg6 Qb2 Qb1 Qa1 Qb8 Qb1 Qbd6 Kb3 Q6h5 Kb2 Qh2 Nh4 Qf2 Bf3 Qg1 Ng2 Rc7 Nf2 Rcc8 Bb7 Rc6 Nfe4
B2nB1KQ/1p4b1/1RB4r/1NB3B1/brp3rR/3k1pn1/N1P3BB/2rb2q1 b - - 0 1 illegal: Other
nNbbNK2/k1Np2n1/B1Q4r/1ppq3B/1NP3p1/5nR1/1NNN1R1r/7b b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 h6 g6 Qe7 g7 Qd8 g4 Bd6 g5 Be7 g6 Bf8 Bg5 hxg5 Kd2 f5 Kd3 c5 Kc4 f4 Kd5 f3 h4 b6 a4 b3 e4 b2 e6 g4 a5 f2 e7 Rh6 Kd6 Nf6 g8N Nc6 h5 Rh7 e5 Ra6 g7 Ra8 a6 Nb8 a7 Ba6 h6 Qc8 Qf3 Nh5 Qc6 Nf6 Ra3 Bc4 Nd2 b1N Ne2 Bd5 Nd4 Be4 Ba6 f1B c4 b5 Rh2 Qb7 Rf2 Beg2 Rg3 Nh5 Nf6+ Kf7 g8N Ng7 Nd5+ Ke8 Nb4 Bh1 Ndc2 Rh8 h7 Bfg2 Nh6 Bd5 Nf5 Bde4 Nfe3 Bd5 Ndf1 Nd2 Nd1 Bdg2 Nb2 Nf3 Qb6 Qe4 Nd2 Qf5 Qc6 Qf7 Bb7 Na6 Bc8 Nc7 Ba6 Rd8 a8N Rb8 Nd5 Rb6 Ndb4 Rg8 h8N Qh5 Nf7 Rh8 Nd8 Qf7 Bb7 Rh2 Bc8 Ra6 Nb6 Na8 N6d5 Ne6 Bb7 Bh6 Bc8 Ng7 Bb7 Rb6 Ba6 Qg8 Ne6 Bg5 Nec7+ Kf7 e8N Bd8 Bb7 Kf8 Nba6 Qf7 Ndb4 Qf5 Kd5 Ke7 Nb8 Qg5 Ba6 Qf5 Qb7 Rbh6 Qc6 Qf7+ e6 Qh5+ Ke4 Qd5+ Kf4 Kf8 e7+ Kf7 Nd6+ Kf6 e8B Ke7 Bg6 Qg8 Bh5 Ne1 Qb6 Bb7 Kg5 Qd5+ Kf4 Nf3 Nde8 Bc8 Qg6 Ne5 Nf6 Kd6 Kg5 Rh7 Qh6 Nf3+ Kg6 Rh8 Ne6 Rh7 Kf7 Rh8 Qg6 Rh7 Kf8 Rh6 Ned4 Kc7 Ne6+ Kb6 Nc7 Ka7 Nfe8 Rg2 Qe6 Rh2 Qc6
4r2n/q1p1PnN1/3bK1kN/Bb3nN1/3R2NN/p1Nn2pQ/Rp4BN/6r1 b - - 0 1 illegal: No proof kernel
n2RR1B1/R2p3p/bR6/2NPrnb1/pB3b2/k4R2/nq2pNR1/q2QKR2 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 f5 e4 fxe4 a4 g5 h4 gxh4 b6 Ra7 b5 Ra6 b7 Rg6 b6 Rg5 Qc2 Rf5 Qd1 Rb5 axb5 a4 g4 e5 f4 Ke7 d4 Kd6 g5 c5 g6 c4 g7 h3 f5 c3 f6 c2 f7 e3 Nd2 h2 Rb1 e4 Nb3 e2 Bd2 c1N Nc5 Ne7 g8R Nf5 Nh3 Na6 b8R Be7 f8R Nc7 b7 Na8 b6 Na2 Bc3 Bg5 Nf2 Qf6 d5 Qd4 Bh3 Bf4 Rhg1 h1Q Rg2 Qh2 Rf7 Re8 Rf1 Re5 Rb5 Qh1 Ra5 Qb4 Ra7 Qb2 Rfg7 Qg1 R7g3 Bg5 Nfd3 Qd4 Nf2 Qa1 Bg4 Qb4 Rf3 Qbb2 Bh5 Bf4 Bf7 Bg5 Nb3 Bf4 Bg8 Bg5 Nd4 Kc5 Nb3+ Kc4 Nc5 Bf4 Bd4 Kb4 Bc3+ Ka3 Qc1 Nc7 Qd1 Bg5 Rba8 Bf4 b8R Ba6 Re8 Bg5 Rad8 Na8 b7 Bf4 b8R Bg5 Nh3 Bf4 Kf2 e1B+ Kg1 e3 Rb6 Beg3 Nf2 e2 Nfe4 Bh2+ Kf2 Bg5 Ke1 Bg3+ Nf2 B3f4 Bb4#
bNn4b/3R1q2/K5Q1/2RNPnR1/2r1Q1p1/1R2b2n/2Q1kBB1/5nB1 b - - 0 1 legal: proof: f4 a5 b4 b5 c4 e5 fxe5 d5 cxd5 h5 a4 axb4 axb5 h4 g4 Rh5 gxh5 Ra6 e4 Rh6 e6 h3 e5 Rh8 Nxh3 Bxe6 Ng1 Bc8 Ke2 Kd7 Kd3 f5 Kc4 g5 h4 c5 d4 b3 d6 Ke6 d7 f4 d5+ Kf5 d6 Ke4 h6 g4 h7 b2 h5 f3 b6 f2 Kb5 c4 h6 c3 b7 c2 Nc3+ Kf5 Rh5+ Qg5 d8B b1N d7 Nf6 Ra5 Nd2 Bg2 Kf4 Bb6 f1N d8R Nc6 b8R Qg8 Rg5 Qf7 Bf2 Ng3 Nf3 Be6 Nd4 Nf5 Rd7 Na7+ Ka6 Nh5 Rb3 Bd5 Rc5 Nc8 Nc6 Bg7 Nb8 Ba8 Ba3 c1B Qc2 Re8 h8Q Nf1 h7 Be3 Qg8 Bh8 Qg6 Rd8 Bg1 Kg3 Bb2 Nf4 Nd5 Nh3 Bc3 Re8 Ba5 Re6+ Bb6 Rc6 Qe4 Bf6 h8Q Bg7 Ra5 Rc4 Qhh7 Bf6 Rc5 Bh8 Bh2+ Kf2 Bg1+ Ke2 Ba5 Bg7 Be1 Bh8 Bef2 Nf4 Qc6 Nh3 Qhg6 Nce7 Qa4 Nc8 Qa2+ Rc2 Qb1 Rc4 Qbc2+
BnQ2nNb/4NR1N/nr3r2/1kQQ4/2nnB3/P7/3B1bR1/1b1KNn2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 g4 Kd7 f4 e5 d6 Kc6 a3 h5 d7 b5 g6 d3 g5 d2+ Ke2 b3 f6 b4 g7 b2 f7 h4 g6 h3 f5 h2 f6 e4 Qc2+ Kb5 Qd1 e3 Bg2 b3 Bf1 Rh6 Bg2 Qb6 d8N Qc5 Bf3 Ne7 g8Q Bg7 f8N Bh8 f7 Ra6 g7 Rab6 Bb7 Ng6 Nh7 Bf5 Nf3 Nf8 Be4 Rhf6 Rg1 h1N Nc6 Nf2 Ne7 Nd3 Ne1 Nb4 Rg2 N4a6 Qc2 d1N Nd2 b1N Qd3+ Ka4 Qd6 b2 Ba8 Kb5 Ne4 Nd2 Ra2 Rg6 Nef6 Nf1 Bd2 b1N Rc2 Nb2 Rc1 Ne6 f8Q Nc4 Qc8 Nf8 Qgd5 Be4 Nfg8 Rf6 Rc2 Bf5 Kd1 Nc3+ Kc1 Ne2+ Kd1 Be4 Rc3 Bb1 Rd3 Rc6 Rd4 Rb6 Rf4 Rh6 Rf7 Rf6 Nh6 Nd4 g8B Rf3 Nf6 Rf5 Bh7 Rf4 Be4 e2+ Kc1 Rf2 Nhg8 Rf4 Nh7 Rf6 Nf3 e1B Kd1 Bg3 Ne1 Bf2 Q6xc5+
2R1k2N/2n4q/R1rnB3/r1b5/2p5/bRbR1NP1/1Qr1Bn1B/Q3NK2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 Bg4 axb5 f5 e4 fxe4 f4 g5 h3 gxf4 hxg4 Bg7 Ra2 Bh6 Ra1 Bf8 d4 a5 b4 e5 g3 c5 d6 h5 d5 e3 b6 e2 b5 c4 g5 h4 b7 a4 b6 e4 g6 a3 g7 h3 Be3 a2 Bf2 f3 Na3 h2 Nc2 Ne7 g8B Qc8 Be6 Na6 b8Q Nc7 b7 Rh6 Qc1 Ra5 d7+ Kd8 Rb1 a1R Rb3 R1a2 Qa1 Nf5 Rd3 Ke7 d8N Nd6 Nf7 Ke8 Nh8 Rb2 Be3 Rg6 Kf2 Rf6 Ne1 Rc2 Nh3 Rg6 Ng5 Rf6 Rg1 h1Q Rg2 Qh7 Rh2 Rg6 Rh6 Be7 Kg1 f2+ Kg2 Bf8 Ngf3 Be7 Bd4 e3 Bb6 Nf5 Rb3 Bc5 d6 Rf6 Qb2 Ba3 Qa8 Bc5 b8R Rg6 Nd3 e1B Be2 Beb4 Kf1 Ba3 Nde1 Rf6 Qa7 Rg6 Ra8 Rf6 Kg2 f1N Rg6 Nd2 d7+ Kd8 Rh6 Ne4 Kf1 Nfd6 Qa6 Ke7 d8R Nf2 Rd7+ Ke8 Ba7 Ndb5 Rdd3 Rg6 Bg4 Rc6 Be6 Nd6 Rf6 Rb5 Qa4 Ra5 Rg6 Bab4 Qaa1 Ba3 Qc3 Rb6 Bd5 Bcb4 Bd1 e2+ Kg2 Nf7 Qcb2 Ng4 Rf6 Re6 Bg1 Bc5 Bh2 Nf2 Rg6 Rea6 Rc6 Rb6 Be6 Nd6 Kg1 Rb7 Rca6 Rb6 Ng2 e1B Be2 Bc3 Nge1 Rc6 Kg2 Nd5 Kf1 Nc7 Rxc8+
q7/2rPbQ2/QrRb3q/1B3Q1R/1R1N1qn1/nbRBk2K/2p1B3/5N2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 f5 b4 d5 bxa5 g5 e4 Qd6 exf5 Qd7 Bb2 Qd8 Be5 d4 Bg3 d3 h4 gxh4 cxd3 hxg3 d4 Bh6 d5 Bf8 d4 Kd7 f4 Kd6 a6 e5 a7 h5 f6 c5 b6 g2 Kf2 e4 Kg3 e3 g5 c4 f7 e2 g6 c3 f5 e1B+ Kh3 h4 b7 c2 g7 Nf6 g8B Qd7 Bb5 Be7 f8Q Qc6 Qf7 Bf2 Ne2 g1Q Qd3 Qb6 Bh7 Bf8 Ra3 Qc1 Rc3 Na6 b8R Nc7 Nd2 Bg3 Nf1 Ng4 f6 Qf4 Rb7 Rb8 a8B Rg8 Qc4 Qa5 Bd3 Be7 Qa2 Qb6 Qa6 Be6 Rh2 Rg7 Rc6+ Kd7 d6 Bb3 d5 Qa5 Nd4 Qa1 Ra7 Rb6 Rb7 Qac1 Rb8 Qh6 Be2 Qcf4 Bbd3 Nb5 Rb7+ Kd8 d7 Na3 Rbc7 Rh7 Rc3 Rg7 Bc6 Rh7 Rb7 Rg7 Rb8+ Kc7 Bcb5+ Kd6 d8R+ Ke5 d6 Rh7 Rdc8 Rg7 Bdc4 Ke4 Rc6 Rh7 Qh5 Rg7 f7 Rh7 f8Q Rf7 Kg2 Rh7 Qhf7 h3+ Kg1 Rg7 Rh1 h2+ Kg2 Rg5 d7 Rc5 Rg6 Rc7 Rc6 Bgh4 Kh3 Bd6 Rc5 Bhe7+ Rh5 Qf5 Bcd3+ Kf4 Rg1 Qff6 Rg2 h1Q+ Rh2 Qa8 Rc8 Ra7 R8c6 Rc7 Rg2 Ne3 Rg5 Ng4 Rgc5 Qf5 R5c4 Qff6 Rb4 Qf5 Qd5 Qff6 Qff7 Qf5 Nd2 Ke3 Qe5+ Qe4 Qef5 Qef4 Nf1+
BnB1N2B/5Nr1/2R1N1p1/bP2K2R/2b3rB/k1Q3n1/2r1Q1R1/3q2nr b - - 0 1 legal: proof: e4 h5 g4 hxg4 c4 d5 cxd5 f5 exf5 b5 d4 a5 b4 c5 dxc5 axb4 a4 Ba6 axb5 Bc8 Kd2 Kd7 Ke3 e5 Ke4 b3 h4 b2 f4 g6 c6+ Kd6 c7 Kc5 f6 Kb4 h5 g3 d6 g2 f7 Qe8 f5 Nc6 f6 Bh6 f8R Ra5 d7 Ra4 d8N Ba6 c8B Bd2 h6 Bc3 h7 Be1 f7 Qd7 Ne2 g1N Bg2 Nge7 Nd4 Rg8 h8B Bb7 Nd2 b1R Ra2 Rg7 Rh5 Nf5 N4e6 Rb2 Qe2 Rc2 Nc4 Qd1 Bg5 Kb3 Rg8 Ba5 f8Q Ba8 Qe8 Nb8+ Qc6 Rb4 Bh4 Ng3+ Ke3 e4 Kf4 e3 Ke5 Bb7 Nd6 Rg4 N8f7 Kb4 Qcf3 Bd5 Ne8 Bc4 Rb2+ Ka3 Qc6 Bb3 Qc7 Ba2 Ba8 Bd5 Qc3+ Bb3 Qee1 e2 Qf2 e1R+ Qe2 Rc1 Rd2 Rc2 Rf8 Nh3 Rd6 Rh1 Rc6 Ng1 Nfg5 Rd4 Rf2 Rf4 Rg2 Rg4 Qcc4 Ba2 Nf7 Bb3 Qd4 Bc4 Qc3+
2N1Qb1K/1nN3N1/1qQ2bq1/3p1RR1/1b4b1/PBB2Rn1/rkB1B3/6r1 b - - 0 1 legal: proof: d4 b5 e4 c5 b4 cxd4 g4 e5 f4 h5 gxh5 a5 f5 axb4 f6 Qe7 Kd2 Ra4 Ke1 Kd8 fxe7+ Kc7 Na3 f5 Nb1 Ra6 exf5 Re6 fxe6 e4 Kd2 Kb7 Ke1 Kc6 Ke2 Kc5 e8B Kc4 h4 g5 a3 d5 h6 b3 h5 e3 Kf3+ e2 Kg4 d3 Kf5 e1B Kg6 g4 h7 b2 e7 b4 h6 b3 Nf3 g3 Rh5 g2 Nd4 g1B Nf5 Nf6 Be2 Nbd7 Bd2 Bc5 Bc3 Bg7 Rg5 Bb7 Qc1 Nb6 Ba4 Bf8 e8B Nc8 Ng7 Rg8 h8Q Bce7 h7 Ne4 Bed7 Ncd6 Bf5 Bf6 Ra2 B8e7 Kh6 Rb8 Qe8 Ng3 h8R Bf8 Kh7 Bc8 Rg8 Bd2 Kh8 Nb7 Be4 Bg4 Rf5 Bb4 Rf8 Bf4 Rf7 Bfd6 Rf3 Bf8 Qh6 Bd4 R7f5 Rc8 Qhe6 Rc5 Q6c6 Bf6 Be1 Kd4 c4 d2 Nc3 d1R Bc2 b1Q Rg5 b2 Bab3 Rb5 c5 Rc1 Bd2 Rg1 Rff5 Qf1 Ra1 Qg2 Raf1 b1Q R1f3 Qf2 Qa6 Qe3 c6 Qe6 c7 Qb6 c8N Rc5 Qaa4 Rc7 Qab5 Re7 Bed1 Re2 Qbc6 Reg2 Be2 Rf2 Ne4 Rfg2 Nc5 Rf2 Be3+ Kc3 Na6+ Kb2 Nc7 Rfg2 Bcd1 Qe4 Bdc2 Qe6 Bf4 Qf7 Bd2 Qg6 Bcd3 Ra1 Bdc2 Rgg1 Be1 Ra2 Bc3+
3r2nN/nn1r1qBP/B1RR3n/8/Q5p1/n1RQ1Nb1/N5Br/K1B1k3 b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 h5 exf5 d5 c4 b5 cxd5 b4 g4 hxg4 a6 Bd7 a4 Bb5 axb5 Kf7 b6 Ke8 b7 Nd7 b8R Nxb8 d4 Kf7 Kd2 Kf6 Kc2 e5 Kb2 c5 h4 g5 f4 g3 d6 c4 h5 g2 h6 b3 a7 c3+ Ka3 e4 d5 b2 Ka2 g4 d7 e3 d6 e2 Nf3 g1R Qc2 e1N Qa4 c2 Rh3 Nc6 Nc3 b1N Ba6 Qe8 d8R Ng2 d7 Bd6 h7 Rd1 Kb2 Na3 Na2 Nh4 Rb1 Qe7 Ka1 Qf7 Rb6 Rh1 Rc8 Rh2 d8N Rb8 a8B Na7 Rcc6 Rb7 Rg3 Rd7 Rh3 Kg7 f6+ Kg6 f5+ Kh5 B8b7 Bg3 Ba8 Qc4 f7 Qb3 f8B Qf7 Bb2 c1N f6 Nd3 Bg7 Nc5 Bc1 Nb7 Rd6 Qe7 f7 Qe8 f8Q Qf7 Nd2 Kg5 Rbc6 Nf5 Qe8 Nfh6 Qe3+ Kf5 Qd3+ Kg5 Qab5+ Kf4 Qbb3 Qc4 Nf7 Qd5 Qa4+ Qc4 Qd5 Ke3 Qd3+ Kf2 Nf3 Qf4 Rh5 Qc4 Rhc5 Qe6 Rc3 Qe7 N7e5 Qf7 Ng6 Ne7 Rc7 Rhd8 Nh8 Neg8 Rc8 Na5 Bd5 Nb7 R8c6 Qh5 Nh4 Ke1 Bg2 Qf7 Nf3+
B2q4/Nq3B1b/2rb2R1/1PQ2NN1/K4Bn1/6Qr/Qp1q2R1/k1Nr3q b - - 0 1 legal: proof: e4 b5 c4 d5 g4 h5 gxh5 f5 exf5 c5 d4 Na6 b4 Nc7 a3 dxc4 d5 Na6 bxc5 b4 Qc2 b3 Qa2 Nb4 axb4 Qd6 Qa5 Qd7 Qd8+ Qxd8 Kd1 Kd7 f4 e5 h4 g5 h6 a5 h5 b2 Kc2 e4 d6 Kc6 d7 Kb5 c6 g4 c7 g3 h7 g2 f6 e3 f5 a4 h6 e2 f7 e1R f6 a3 Nc3+ Kb6 b5 Ka5 Nce2 Ka4 Rh2 c3 Nh3 g1Q Bf4 a2 Ng5 Ka3 Rg2 Bg7 f8Q+ Qc5 f7 Bd4 Nc1 Re4 Bc4 Re8 Qd6 Ra5 f8Q Be5 Bf7 Bb7 c8B Re6 Qc7 Bd5 Bb7 Rc6 Ba8 Nf6 Qa7 Qb4 Qfc5 Bd6 Rb1 a1Q Qa6 Re8 h8Q Ng4 h7 Re1 Qe5 Rd1 h8N Bf3 Qee3 Be4+ Qd3 Bh7 Ng6 Qa2 Ne7 Qd5 Nf5 Ra4 Qg3 Ra5 Ne2 Ka2 Rc1 Ra3 Qaa7 Rd4 Rcg1 Rd1 Nc1+ Ka1 Qa4 Qba5 Qac4 Qac7 Qa4 Qb7 Qac4 Raa6 Kb3 Ra3+ Kb4 Rb3+ Ka4 Qd2 Q4d5 c2 Qe6 Qdb6 d8N Rc3 Qgf2 Rh3 Qg3 Rc8 Nc6 Qd8 Na7 Rc6 Na2 c1Q Qed5 Qcc3 Nc1 Qcf6 Re1 Qh6 Re6 Qh5 Rg6 Qh4 Qgb3 Qhe1 Qg3 Qh1 Qa2#
1QBb3R/q1n5/2qqPnp1/1Bk2NR1/1q2Q3/3NKRr1/Br3B2/5Nr1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 e5 c4 exf4 a4 d5 cxd5 b5 axb5 Rh5 a6 Rh7 a7 Ba6 bxa6 Rh8 Kf2 Kd7 e4 Kd6 h4 c5 d4 f5 e5+ Kd7 h5 c4 e6+ Kd6 h6 f3 h7 g3+ Ke3 f2 Qf3 g6 Nh3 c3 Qe4 g2 Rg1 c2 Nd2 Qc8 Ra3 Nc6 Bb5 f1Q Nf4 Qc4 Nd3 Qd8 Nf1 Rc8 a8B Qb4 a7 Nf6 Bb7 Rb8 a8B Be7 Bc8 Na7 Bd2 Qc7 Be1 Bd8 Bf2 c1R Bab7 Qc6 Rc3 Rf8 h8R Rf7 B7a6 Rd1 Bc4 Nb5 Ba2 Nc7 Bb5 f4+ Ke2 f3+ Ke3 Rh7 Ra3 Rh3 Rb3 Na8 Rc3 Kc7 d6+ Kb6 d7 Rg3 d5 Nc7 d6 Rb1 Rc5 Rb7 Rg5 Ra1 Rgh1 g1Q R1h3 Qh2 Nd2 Rag1 Nf1 Be7 d8N Rb8 Nf7 Bd8 Nde5 Kc5 d7 Rb6 Nd6 Rb7 R3h4 Rb8 Rf4 Qh7 Be1 f2+ Rf3 Qe7 Nf5 Qed6 Nd2 f1Q Bf2 Qa1 Nf1 Be7 d8Q Rb7 Bd5 Qa7 Ba2 Rb8 Bd7 Rb7 Qb8 Bd8 Bc8 Qba5 Bd3 Rb2 Bb5 Qb4 Nd3+
1Q1qn2N/2b1Q2n/R2RK3/R1bQ3B/2B1N3/k1bn1nQP/1p1b4/6Bn b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 b4 d5 cxd5 axb4 Rh3 fxe4 Rh2 Ra5 Rh1 Ra8 Nc3 h5 Qa4+ b5 Qd1 g4 Qb3 g3 Be2 Bh3 Qd1 Ra6 Bc4 Rg6 Nb1 Rg5 hxg5 h4 Be2 Bd7 Bf1 h3 Nf3 h2 Ng1 Bh3 gxh3 Bh6 Nc3 Bg7 Nb1 Bf8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kf5 e5 a4 c6 d4+ Kd6 f4 e3 a5 b3 g6 e2 a6 e1N g7 e4 a7 g2 a8B b2 Be3 b4 Ne2 g1B Nd2 b1N Ra6 Nf6 g8Q b3 Qg3 Nh7 Bf2 e3 Ne4+ Kc7 Qd2 c5 Ke6 c4 f5+ Bd6 f6 c3 f7 c2 f8Q c1B Qe7+ Nd7 Nf4 e2 Ng6 Nd3 Qa2 Re8 Nh8 e1B Be2 Nd2 Bh5 Bf4 Qb1 Nf3 d6+ Kc8 d5 Bcd2 Qd1 Ndf6 d7+ Kc7 Bc6 Bc3 Bb5 Bed2 d6+ Kb7 Ba7 Bc5 Bc4 b2 Re1 h1N Rg1 Qb6 d8R+ Kc6 d7 Bc7 Rb8 Rf8 d8Q Ne8 Qb3 Rf5 Rd1 B5b4 Rb7 Ra5 Qb8 Bbd6 Nf2 Kc5 Ne4+ Kd4 Qb5 Bc5+ Qc6 B7d6 Qcd7 Qd8 Qc6 Be5 Rb5 Bc7 Qd5+ Ke3 Rg1 Ke2 Rg2+ Kd1 Rg1+ Kc2 Rd1 B5b4 Bg1 Ba3 Ra1 Bc5 Ra3 Kb1 Rab3 Ka2 Rbb6 Bdf4 Rd6 Bfd2 Rb5+ Ka3 Rbxa5+
rBb1rR2/5n1K/1Pb1Q3/B3N1N1/pnnBp2k/1Nq5/R3r2R/1NQ5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 a5 Qc2 a4 Qd1 Bg7 Ra3 Bd4 Ra1 Bb6 Bc4 Ba5 bxa5 c6 b6 Ra6 Be2 Ra8 Bb5 cxb5 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 d4+ Kf6 f4 h5 g4 e5 a6 h3 g5+ Kf7 f6 Kg6 f5+ Kf7 g6+ Ke8 a7 h4 d6 b4 d7+ Kf8 g7+ Kf7 d5 h2 d6 b3 Ra2 h3 Nf3 b2 Bd2 Qe8 d8B Qe7 d7 Ba6 Bc7 Bf1 d8N+ Ke8 Ng5 Qa3 f7+ Ke7 f8R Ba6 Ba5 Qc3 Ndf7 Kf6 Qc1 Nh6 g8Q Nc6 Bb8 Nb4 Qg6+ Ke7 Qc6 Bc8 Qd7+ Kf6 Qe6+ Kg7 f6+ Kg6 Bd6 Kh5 Bb8 Ng8 Kf5 Kh4 Kg6 Nh6 Nd6 Nf7 Nc4 Rg8+ Kh7 Nc6 Ne4 Nb4 Ned2 Rg2 Nb3 Re2 Rg1 h1B Rg2 h2 Rf2 Nd6 f7 Bc6 Rg2 e4 Ne5 h1R Rh2+ Kg3 Re8 Rd1 f8B Nf7 Bc5 Rd8 Rf8 Re8 Na3 b1N Bd4 Nd2 Nb1 Nd5 Bd6 Rb8 a8N Nb4 Nc7 Nc4 Qg6+ Bg4 Ne6 Ra8 Ng5 Bh3 Bb8 Bc8 Nh3+ Kh4 Qe6 Qd3 Ng5+ Qh3 Rg2 Qc3 Rh2+
2q5/1Q1Np2Q/4k3/1q3P1b/N2q2r1/RbpN2NQ/b2B2r1/RB1RKn2 b - - 0 1 legal: proof: f4 a5 c4 d5 h4 dxc4 g4 g5 a4 gxf4 b4 b5 h5 Nd7 g5 Ne5 axb5 a4 Kf2 Ng6 hxg6 Bg7 Ke1 Bd4 Nh3 Bb6 Ng1 Ba5 bxa5 Qd4 Ba3 Qd6 Bc1 Qd8 d4 Kd7 e4 h5 a6 f5 g7 c5 b6 c3 a7 c2 d5 f3 b7 f4 b8R h4 d6 f2+ Kd2 f3 g6 a3 Ne2 h3 Rb5 a2 Ng3 c4 Nf5 h2 Ba3 Qb6 Ng3 Nf6 g8Q Rh4 g7 Nh5 Qh7 Rg4 g8N Ke6 Rb3 Qb5 Bd3 f1Q d7 f2 Qf3 Bb7 Nc3 Bd5 Rg1 h1B Nf6 Rag8 a8Q R8g7 Rd1 a1Q Na4 Qd4 Bb4 Qh3 Rge1 f1B Qb7 R7g6 Qe3 Bf3 Ra3 B1e2 Rh1 c1Q+ Ke1 Qc2 Rda1 Bd1 Bd2 c3 Qeh6 Ba2 Rf1 Qcb3 Bb1 Q3d5 Qe3 Bdb3 d8N+ Kd6 Ne6 Qf5 Nec5 R6g5 Na6 Ke6 Nb4 Be2 Nd3 Bed1 Ne2 Ng3 Nd7 Rg6 Rh1 Nf1 Qf3 Rg2 Ng3 Rg4 Qe3 Qhh5 Qf3 Qe8 Qe3 Qc8 Qeh6+ Rg6 Qh3 Bh5 Rg1 Rg4 Rh1 Bd5 Kd1 Nh2 Re1 Rg1 Ke2 Bdb3 Rd1 Nf1 Ke1 Rg2 exf5+
1N2RKN1/5br1/1p5N/1P2nBR1/2bqB1b1/1n1qQ3/3Q1Bp1/bR2B1k1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 Kd7 exf5 Ra7 b5 Ke8 Qg4 Ra8 Qb4 axb4 g4 Nc6 f4 Ra3 g5 Nb8 f6 Qd7 f5 Qd6 h4 Ra6 h5 Qh2 f7+ Kd7 h6 Rf6 gxf6 Qxh6 Rh2 Qh5 Rh1 Qh2 a4 Kd6 d4 g5 a5 c5 a6 h5 a7 e5 a8B b3 Bf4 g4 Nh3 b6 Nc3 b2 Bg3 b1B Bd3 c4 Rg1 h4 Nf2 h3 Ke2 Nd7 Ke3 Nh6 Ke4 Ba2 Rab1 Be7 f8Q Nf7 Qh6 Rh7 Qe3 Rg7 Rg2 Qg1 Bb7 Nh6 f7 h2 f8B h1B f6 Nf7 Kf5 Bb3 Bc6 Nc5+ Bd7 Qd1 Be4 Qd3 Rgg1 Bf3 Be6 Be2 Bd7 Ng5 f7 Nf3 Be6 Ba2 Bd7 Nb3 Rg2 Kc7 Ke6 Bf6 Bb4 Bf1 f8R Be2 Ncd1 c3 Re8 c2 Be1 c1Q Nc3 Qb2 Rg1 Rg8 Kf7 Kd6 Bdf5 Rg7+ Kf8 Be6 Bh4 g3 Ng4 Bf7 Nh6 Qbd2 Na4 Qb4 Nc5 Qa4 Ng8 g2 Na6 Qb4 Rf1 Qbc4 Nb8 Bd1 Bh7 Qc5 Bef5 e4 Bhg3+ Ne5 Rh1 Qcc3 Rh5 Bg4 Rg5 Qb2 Qd2 e3 Qf2 e2 Qe3 Nd2 Be4 Bc4 Bhg6 Nb3 Bef5 Kc7 d6+ Kb7 d5 Qbd4 d7 Kc7 d8N Kd6 Bh7 Kc5 d6 Kd5 d7 Kc5 Bd2 e1Q Ba5 Qf2 Be1 Bfh5 Nf7 Kd5 Nfh6 Bf7 d8Q+ Kc5 Bd7 Kd5 Qd2 Kc5 Qe7+ Kd5 Rg6 Ke4 Bf5+ Kf3 Qc5 Q4e4 Rg5 Qed4 Qc1 Ke2 Qd2+ Kf1 Be4 Kg1 Bhf5 Bd8 Qe7 Bc7 Qe6 Bd6+ Qe7 Bb4 Qc5 Bc3 Qe7 Ba1 Qc5 Q4c3 Qce3 Qcd4 Bgxf2+
1n1n1K1B/n2krR2/p1Q2bpN/2Qr1P2/1QB3N1/1r3N1n/5Q2/2n2R1R b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 e4 dxe4 g4 hxg4 c4 f5 b6 f4 b7 f3 b5 Qd7 b6 Qd5 cxd5 Nc6 b8N Nh6 Nxf3 Rh7 b7 Ng8 Ng1 Bd7 Nxd7 Rh6 Nb8 Rh8 Ke2 e5 Ke3 g6 d4 a6 h4 g3 f4 g2 h5 Rh7 d6 Ra7 f5 Re7 h6 Kd8 d5 Ra8 d7 Na5 h7 c5 h8R c4 Qf3 c3 Nd2 c2 Nc4 Bg7 Nc6+ Kc7 Nd8 Bf6 d6+ Kb8 Bb2 c1N Nf7 Nc6 Nh6 Nd8 Qf2 Ra7 Nf3 g1N Bd4 Nh3 Rh7 Ra8 Rf7 Ra7 Kd2 e3+ Kc3 e2 Kb4 e1R Kc5 e4 Ne3 Rd1 Neg4 e3 Bc4 e2 Rf1 e1N Be5 Bg5 Bh8 Nc2 Rh1 Nd4 Kd5 Na2 Rc1 Rd3 Rcf1 Bf6 Kc5 Ree3 Kd5 Ne7+ Kc5 N8c6 d8Q+ Nc8 d7 Nc1 Qb6 Nd8 Qc6 Rb3 Kd5 Re7 Qc5 Ra8 Qc6 Na7 Kd6 N4e6 Qcc5 Ndc6 d8Q+ Nc8+ Kd5 Ra7 Qf8 Kc7 b8Q+ Kd7 Qbb6 Ned8 Qbb4 Nb8 Qg7 Bb2 Qf6 Rb7 Qfc3 Na7 Qcc2 Rb5 Qcc3 Ne6 Ke5 Ba1 Kf6 Nd8 Kg7 Ra5 Kg8 Bb2 Qcc2 Bf6 Kf8 Rb5 Qce3 Re5 Qec5 Rd5 Qe4 Re5 Qa8 Rd5 Qac6+
1b1q4/n1B1PB2/NbQ1nk1n/nN4NK/2qp4/1p6/3R2RR/NQ1n3B b - - 0 1 legal: proof: g4 f5 f4 a5 a4 b5 d4 h5 b4 g5 d5 e5 d6 cxd6 Bg2 d5 Bh3 d4 Bf1 Ra6 Ra3 Rf6 fxe5 f4 h3 Rf5 Ra1 Ba6 Nd2 axb4 Nb1 b3 Ra2 b4 Ra1 Bb5 gxf5 g4 axb5 g3 Be3 Rh7 Bd2 Rg7 Bc1 Rg4 hxg4 Qc8 Rh2 Qc7 Rh1 Qd8 e4 Ke7 Ke2 d5 Kf3 g2 c4 d3 f6+ Kf7 c5 b2 b6 d2 c6 h4 e6+ Kg6 g5 d4 Kg4 b3 e7 h3 e8B+ Kh7 f7 Kg6 e5 h2 b7 f3 e6 f2 c7 Qd7 c8Q Qa4 e7 Qc4 Ne2 g1B Na3 b1Q Bg2 f1N Nc3 Bh6 Nc2 Qa2 Nb5 Nc6 b8N Qa5 Na6 Na7 Ra2 Qd8 Na1 Ne3+ Kh4 Kg7 g6 Bf4 f8N Nh6 Bf7 Bc7 Nh7 Bb6 Ng5 Kf6 g7 Bf2+ Kh5 Bg3 g8R Bb8 Qg1 d1N Qe1 Nc6 Rd2 Na7 Rg1 h1N Rh8 Nhf2 Bh1 Nd3 Rgg2 Nc5 Qc6+ Ne6 Ba3 Qc2 Bd6 Nc4 Bc7 Na5 Qee4 Qc4 Qb1 Nb2 Rg8 Nd1 Rh2 Qc3 Nh3 Qb4 Rgg2 Qc4 Ng5
bN6/QQ3b2/1r4Qk/3npRR1/1p2B2K/1RBPq3/1nn2p2/1B2NBr1 b - - 0 1 legal: proof: f4 a5 c4 c5 b4 axb4 g4 d5 cxd5 h5 gxh5 c4 d3 e6 f5 c3 f6 Be7 fxe7 c2 Bb2 c1B e3 Bxe3 Ba3 Bc1 Bxc1 Kd7 Kf2 Ke8 Kg3 b5 a4 f5 h4 Kf7 e8B+ Kf8 d6 g5 a5 Kg7 a6 g4 a7 e5 h6+ Kh7 h5 b3 d7 b4 Nd2 b2 Bf7 b1B Nb3 Nc6 Bb2 Qa5 d8Q f4+ Kh4 g3 Qf3 g2 Qe7 Be6 Nd4 Rb8 a8B Na7 Ra3 Qb6 Bc3 Nb5 Qa7 Nd6 Qfb7 f3 Rb3 f2 Ngf3 g1N Nc6 Qe3 Ne1 Ne2 Rg1 Bd5 Rg5 Ne7 Be6 Rbg8 Nb8 Ba2 Rf5 Bf3 Bd5 Rg1 Be4 Kg8 h7+ Kg7 h6+ Kg6 Bd5 Nd4 Be6 Rg8 h8R Nc2 h7 Nc4 Bd5 Rg7 Rg8 Kh6 h8Q+ Rh7 Rgg5 Nb2 Be4 Nd5 Qg8 Bh1 Qc7 Rf7 Bc6 Rg7 Ba4 Rg6 Qcb7 Rb6 Ra3 Na1 Bc2 Bg2 Bb1 Nc2 Rb3 Nf4 Qba8 Nd1 Bc6 Be4 Ra3 Bf7 Rb3 Nb2 Bd5 Bf3 Bc6 Bg4 Bcg2 Bf3 Qd5 Be4 Qdd7 Bc6 Be4 Ba8 Qdb7 Nd5 Qg6+
2r1bQ1n/2q3k1/PB2rNN1/2b1R3/2QbN2K/1R2pQpb/1BNpR3/8 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 a3 Kf7 Bc4+ Ke8 Ba2 b3 c4 bxa2 Bf4 b5 Qc2 b4 Bc1 Na6 Qd3 Nc7 Qd1 Nb5 cxb5 Ra7 Qa4 Ra6 Qd1 Ra8 f4 Kf7 Kf2 g5 Kg3 e5 h4 d5 h6 d4 h5 d3 c6 b3 f6 d2 a4 e4 a5 b2 h7 e3 h6 g4 f5 Ra7 a6 Bc5 c7 Qe8 b6 Qb5 b7 Bb4 b8R Qe2 Na3 b1B Nh3 Qd3 Ng5+ Kf8 f7 Bd6+ Kh4 g3 Bb2 Bf4 Nc2 Be5 Rh2 Bf6 Re2 Bd8 Rb3 Bd7 c8Q Ne7 Ne4 Be8 Qc4 Rg8 h8N Qd7 h7 Bb6 Qh1 Rg6 Qf3 Ra8 Bd4 Ba7 Bb6 Re6 Ng6+ Kg7 f8N Qc7 Nd7 Rd8 Ndf6 Rc8 Ba5 Bd4 Bb6 Bc5 h8B+ Kf7 Nb4 Bd3 Rh1 a1B Nc2 Bad4 Ra1 Bc6 Ra5 Be8 Nh5 Kg8 f6 Kh7 f7 Kh6 Nf2 Bf5 Ne4 Bh3 f8Q+ Kh7 Q8f4 Kg8 Be5 Kh7 Nhf6+ Kg7 Rab5 Ng8 Qf5 Nh6 Ra5 Nf7 Q5f4 Ba1 Bb2 Nh8 Qd6 Bb4 Re5 Bc5 Ba3 Bc3 Bb2 B3d4 Qf8+
2Q1n1Kb/p1p3QB/1B2r3/2q3p1/RBN3k1/1N3N1b/Pb2bN1n/2QR4 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 c4 bxc4 d3 cxd3 gxh5 d6 b3 Qd7 b4 Qa4 Bg2 Na6 Bf1 Qa5 bxa5 Rh7 Qd2 Rh6 Qd1 Rh8 Be2 Rb8 Bf1 Rb6 axb6 Rh6 Qc2 Rh7 Qd1 Rh8 Kd2 Kd7 Ke3 e5 Ke4 g5 Kd5 d2 f4 e4 h4 e3 h6 e2 h5 e1B f6 Rh7 f7 Bg7 f8Q Bc3 f5 Nb8 b7 Ba5 f6 Rf7 h7 Bh4 h8Q Re7 h6 Bc3 h7 Bf2 f7 Re2 Nh3 Bf6 Na3 Re7 Nc4 B6d4 Bd3 Nh6 Qfg7 Ng4 f8B Nh2 Qe1 d1Q Be3 Qg4 Rd1 Bb2 Bb6 Bfd4 Nf2 Qg1 Qhg8 Bdc3 h8N Bf6 Nf7 Re6 Bh7 Bfe5 Ke4 d5+ Kf5 d4 Bb4 d3 Q8h8 Bf6 Kg6 d2 Qf1 Qg3 Rg1 Qe3 Rg4 Qc5 Rh4 Ke7 Qe1 Nd7 b8N Ng4 Na6 Nh2 Bg8 Bfe5+ Kh7 Bec3 Qe3 Bd4 Qc3 Be5 Qc1 Nf6+ Kh6 Ne8+ Kh7 Rc6 Re4 Ke6 Rd4 Bf6 Nfe5+ Kf5 Nf3 Re6 Rg4 Qd6 Nc5 Bd7 Rf1 d1B Nb3 Be2 Rd1 Bfc3 Qf8+ Bf6 Qhg7 Qc5 Kh8 Nd6 Qc8 Ne8 Rgd4 Be5 Ne4 Kg4 Bh7 Bf6 Kg8 Be5 Qf7 Bh8 Qg7 Kh3 Nf2+ Kg3 Ne4+ Kg4 Nf2+ Kh5 Bc3 Rd6 Ne3 Bh3 Ra4 Rg6 Nc4 Re6 Ne4 Kg4 Be1 Qd6 Bb4 Qc5 Nf2+
N2R4/1q1pR1QN/4R2n/Bb1B2p1/1Nn1Bqp1/qn6/P1K1k1Q1/3Rr3 b - - 0 1 legal: proof: e4 c6 f4 e6 e5 Ke7 f5 Qa5 f6+ Kd8 Bd3 Kc7 Bf5 exf5 e6 Kd6 e7 Qc7 e8R Kc5 g4 h5 c3 Kb5 g5 Kb6 Re4 Qd6 Rg4 hxg4 d4 Kb5 g6 a5 gxf7 a4 Nh3 a3 bxa3 Ra5 Qf3 Ka4 Ng1 Re5+ dxe5 b5 Qe2 b4 Qd1+ b3 Bb2 Qc7 Bc1 Bb4 cxb4 Qd6 b5 Qe6 Bb2 Qe7 Bc1 Qd6 f8R g5 h4 c5 e6 f4 h5 f3 b6 Kb5 e7 Kc4 e8B b2 h6 Qh2 h7 f2+ Kd2 f1Q+ Qe2+ Kd4 f7 c4 a4 c3+ Kc2 Qhf2 b7 Qf4 a5 Qh2 a6 Nc6 b8R Qf6 a7 Na5 a8B Qc7 Nf3+ Kc5 Be4 Qcd8 Nd4 Bb7 Nd2 b1N Nc6 Qf3 Re1 Qg3 Nb4 Kd4 Qg2 Qb6 Nc4 Ba6 Rd8 Bb5 Bd2 Qb7 Nb6 Nc4 Na8 Nh6 Rd1 Rg8 h8Q+ Qe5 Be1+ Ke3 Qg7 Qf4 Rd6 Rh8 Re6 Nbd2 Rd1 Nb3 Rg8 Rh7 f8N Rh8 Bf7 Rh7 Qg3+ Ke2 Re7 Rh8 Bfd5 Rh7 Qe5 Rh8 Rg6 Rg8 Nh7 Re8 Rd6 Rh8 Kb1 Nd4 Qg7 Nhf5 Nf6 Rh1 Nh7 Nh6 Rde6 Rg1 Bd2 Re1 Nc6 c2+ Kc1 Nd6 Kb2 Nb3 Ba5 Nc4+ Kc3 Qb6 Nb4 c1Q+ Nc2 Qa3 Nb4 Qa6 Kc2 Qb7 Qg2+
QBN3KB/n1p5/r3rpk1/1R3Q2/2q3NP/1rq2B2/1q2RN1p/2NbR3 b - - 0 1 legal: proof: b4 a5 c4 h5 f4 e5 g3 d5 cxd5 exf4 a4 b5 axb5 axb4 Na3 g5 Bg2 h4 Bf1 g4 Nb1 Be7 Ra2 h3 Ra1 Bh4 gxh4 g3 Ra2 g2 Kf2 Nd7 Ke1 Ndf6 Ra3 Ne4 Ra1 Ng3 hxg3 Bb7 Qc2 Ba6 Qd1 Bc8 Kf2 f3 Ke3 h2 Ke4 f2 Ke5 b3 e4 b2 d4 Ra3 d6 Qd7 d5 Bb7 g4 Rg3 b6 Qb5 g5 Rh7 d7+ Kf8 d8Q+ Kg7 g6 Ne7 Be2 f1Q Ra2 Qc5 Bf3 Qfc4 Qf1 Bc8 b7 Bf5 b8B Q4b5 Nc3 b1Q Nh3 g1R Bb2 Rh6 Ne2 Rh7 Nc1 Rh8 Nf2 Kh6 Kf6 Q1d3 g7 Qda3 g8N+ Kh7 e5 R3g2 d6 Qe2 e6 Qcb5 d7 Qbc4 Nh6 Rf8 Nhg4 Nc8 e7 Na7 e8N Rg3 Nd6 Bc2 Nc8 Bd1 Ba1 Qed3 Re2 Re8 Qh3 R1g2 Rhe1 Qb1 Be5 Qbb2 Bc3 Re5 Qe8 Ra5 d8R Ra6+ Qc6 Qab4 Rd5 Qb4b3 Bd4 Q3c3 Rb5 Rg1 Ke7 R1g2 Bg7 f6 Kf8 Kg6 Qa8 Re6 Bh8 Ra6 Bc6 Re3 Bd5 Ree6 Kg8 Rg3 Bc6 Qcd2 Bd5 Rb3 Qf3 Qdc3 Qf4 Qa2 Bf3 Qab2 Qf5#
1n1QR3/2n1RN2/1Bnb3P/7B/1NN1nN2/2pK2p1/2Q1Bp2/k1rQ2nb b - - 0 1 legal: proof: b4 a5 g4 b5 f4 d5 a4 e5 axb5 exf4 c4 h5 cxd5 hxg4 b6 Qe7 b5 Qa3 b7 Qb3 Qxb3 Ra6 Qd1 Rf6 b6 Rh3 Nxh3 Rh6 Ng1 Rh8 e4 Kd7 Ke2 Kd6 d4 c5 h4 g5 h5 f5 h6 c4 Rh4 f3+ Kd2 f4 Bb2 f2 Be2 g3 Na3 g4 Nh3 f3 Nf4 f1N+ Kc3 a4 e5+ Kd7 e6+ Kd6 e7 f2 e8B g2 Rb1 g1N Bh5 g3 Qc2 Nf6 Re1 Ne3 Bc1 Neg4 Be3 Ne8 Kd2 c3+ Kd3 Ngf6 Rh1 Ne4 Nc4+ Kd7 d6 Kc6 d5+ Kb5 d7 Kb4 d8N a3 d6 a2 d7 a1N Rh4 Nb3 Nf7 Na5 d8Q Nc7 Rg4 Nac6 Rg8 Bd6 Re8 Be6 Bd4 Bd5 Qd7 Nba6 b8N Rf8 Re7 Re8 b7 Rd8 Bb6 Re8 Qc1 Kb3 Qd1+ Ka2 Qf5 Nd2 Qh7 Bh1 Qf5 Ne4 Qh7 Nd4 Nc6 Ra8 Qg6 Nb8 Qf5 Ra4 Qh7 Rb4 Re8 Rb1 Nb4+ Ka1 Qf5 Nba6 b8Q Rc1 Qd8 Nc6 Qa5+ Kb1 Qaa4 Nab8 Qac2+ Ka1 Bf1 Nf6 R1e7 Ne4 Bfe2
1n1Bbkb1/K2Qn1N1/1n1n1p2/5R1p/1Q1RpPBB/4R3/2b1b3/3B2QN b - - 0 1 legal: proof: d4 c5 b4 a5 e4 axb4 a4 d5 Na3 cxd4 Nb1 d3 Qd2 d4 Qd1 Qd5 exd5 Bg4 Qf3 Bd7 Qd1 Bc8 f4 h5 c4 b5 g4 b3 c5 b4 h3 Ra5 h4 Rb5 axb5 Bb7 Ba3 Ba6 Bc1 Bc8 c6 e5 c7 e4 b6 d2+ Ke2 f6 b7 b2 d6 d3+ Kf2 b3 d7+ Ke7 Bg2 Rh6 Bh3 Rg6 Bf1 Rg5 Na3 Re5 g5 Kf7 Qf3 Re7 Qd1 Ke6 Nb1 Rf7 Ke3 Kd6 Kf2 Ke7 Ra3 Kd6 g6 Ke7 gxf7 g5 Ra1 g4 Ke3 Bh6 Kf2 Bg5 hxg5 Kd6 Nc3 Ke6 Nb1 Ke7 Ke3 g3 Kd4 g2 Kc5 Kf8 Kb6 Nh6 d8B Bf5 c8B Kg7 f8R Be6 g6 Nc6 b8Q Ne5 Ra5 Ng8 Ka7 Nf7 Na3 b1B Qb4 b2 Nc4 Bd7 Nh3 g1N Ne3 Ne7 Be2 Bc2 Nf2 b1N Rh3 Nd6 Nh1 Nf3 Rf5 Ne5 Qg1 d1B Bd2 Nc3 Be1 d2 Bh4 Bda4 Rf7+ Kg8 g7 Be8 Rg3 Na4 Bg4 N7g6 Rd7 Nb6 Ba6 Ne7 Bae2 Bb3 Rf3 Bdc2 Bd1 Nd3 Rg3 Nc5 Rh3 Na6 Rg3 Ndc4 Rd4 Nd6 Rf3 Nb8 Rg3 Kh7 g8Q+ Kh6 Qgc4 Kg7 Qcb5 Kf8 Qd7 Bg8 Ra5 Bc4 Nf5 B4b3 Re3 Bg8 Bde2 d1B Ng7 Bh7 Bef3 Be2 Re5 Bg8 Rf5 Bf1 Bd1 Bb5 Rdd5 Be2 Rd4
k2b1qr1/RbPR3n/1bQN3n/1Q1K1R2/Bb5n/1r1bB3/N1R2q1Q/N7 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 Kd3 d5 g4 Kd7 f4 Kc7 c4 Kb7 b4 e5 b6 a5 b5 e4+ Ke2 a4 c5 d3+ Ke3 a3 Kd4 h3 f6 a2 f7 h2 g5 d2 f5 h4 f6 h3 g6 e3 g7 e2 Qa4 d1N Nd2 e1B Nb3 Ba5 Ne2 Ne3 Nc3 Nh6 g8N Ng2 Ne7 Bf5 Nc8 Nd7 c6+ Kb8 b7 Rg8 Bd2 Bfb4 f8R Nh4 Rf7 Nf8 Rd7 Nh7 Nd6 Qb6+ Ke5 d4 c7+ Ka7 f7 d3 f8R Qf2 Rc1 a1B Rc2 Bg6 Rf4 Be4 Bg2 Bf5 Bc6 Rg3 Bc1 Rag8 Rd1 h1Q Re1 Qhf3 b6+ Ka6 b8Q h2 Qf8 h1Q b7 d2 b8Q d1B Rg1 Rh3 Rg5 Be4 Bd2 Be2 Ke6 Qa7 Na2 Bf6 Na1 Qe1 Qg7 Be7 Qe5 Bd8 Rff7 Bf1 Qh2 Qef2 Rgc5 Qf4 Rf8 Rd3 Be3 Rb3 Rf6 Bb5 Qa8 Bed3 Kd5 Kb6 Rff7 Ba6 Rf8 Qf6 Bb5 Qg7 Rf5 Qf8 Bc6 Ba3 Qc4 B3b4 Ba4 Bc8 Rb5+ Ka6 Qac6+ Bb6 Ke5 Qa8 Q4d5 Ka7 Ra5+ Bca6 Qdc5 Qb7 Q6b5 Ka8 Qcc4 Qb8 Kd5 Qa7 Qcc6+ Bb7 Rxa7+
3n1b1n/QP1Bqn1q/NKB4B/3N1nkr/N6n/1Q1B4/R5r1/1b2bR1Q b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Ke7 d4 h5 g4 f5 e4 c5 e5 h4 b6 f3 Ke3 c4 g6 c3 e6 Kf6 e7 c2 e8B b3 b7 h3 d6 b2 d5 f4+ Kd4 f2 Kc5 h2 g7 f3 g5+ Kf5 g6 Rh5 Bc6 Ra2 Ne2 Qe7 Bh6 c1B Nf4 Bd2 Nc3 b1N Na4 Be1 Kb6 Na3 d7 Nb5 d8N Nd6 Nde6 Nf7 d6 Nh8 d7 Rb2+ Bfb5 f1N d8Q f2 Nd5 Ne3 Rf1 h1Q Ra2 Ng2 Nec5 Nh4 Na6 Be6 Bd7 Nc6 Qb8 Nd8 Qa7 Re2 Bd3+ Qe4 Bd2 Nh6 g8Q N6f7 Bc3 Kg5 g7 Bf5 Qb3 Rd2 Qh7 Rb2 g8B Bg6 Rh1 f1N Bg7 Ng3 Rf1 Ngf5 Bc6 Qh1 Bd7 Rg2 Bc6 Ne5 Be6 Nef7 Bed7 N5d6 Be2 Bb1 Bd3 Qh3 Qe4 Qf5 Qf3 Qh7 Qfd1 Ndf5 Qf3 Rd2 Qh1 Rg2 Bh6+
5Nb1/1qBnq1r1/3QrR2/N4n2/1r3B2/3nQRN1/B1R1b1PB/rk4Kb b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qc2 a4 Qd1 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Qe7 Na3 Qd7 Nb1 Qd8 Kf2 Kd7 e4 Kd6 d4 c5 b6 f5 a6 h5 a7 f3 b7 h3 Be3 f4 Nc3 h4 Ba6 h2 Bd2 a3 Bd3 a2 Nce2 c4 Bc1 h3 Bb1 c3 Ng3 c2 N1e2 Rh7 Rf1 Nd7 b8B+ Qc7 Be3 h1Q Nc1 h2 Nb3 c1N Na5 Nh6 Qd3 Rg7 e5+ Ke7 d6+ Ke6 Qd1 Kd5 e6 Nf5 e7 Qb7 Bc7 Rb8 e8Q Ra8 Bd2 Rb8 a8R Qg1+ Ke1 h1B Qe3 Qh2 Kf2 Qh7 Ra6 Nd3+ Kg1 Qh4 Rc6 Qe7 Rc2 f2+ Kh2 Nf8 d7 f3 d8B Be6 Be5 Nd7 Bdc7 Bg8 Bc1 Ke6 Bf4+ Kf6 d5 Kg6 d6 Re8 Re1 f1B Kg1 Be2 Rf1 Kf6 Be5+ Ke6 Bf4+ Kd5 Bb2 Rb8 Bbe5 f2+ Kh2 Nf8 d7 Re8 d8N Nd7 Ne6 Rb8 Rg1 f1R Nf8 Re1 Bed6 Nc5 Rf1 Nd7 Qec1 Kd4 Rf3 Qd5 Qa3 Rb4 Qd2 Qb7 Qac1 Bf1 Kg1 Re6 Qa3 Be2 Qe3+ Kd5 Bg5 Rh4 Rf4 Nh6 Ne4 Rg4 Rf6 Nf5 Bh2 Rh4 Ng3 Rc4 Qf3+ Kd4 Bgf4 Ra4 Rb2 Rc4 Qd6+ Kc3 Qe3 Rb4 Rd2 Bf3 Rf2 Bd1 Rf3 Kb2 Bc2 Be2 Rc1 a1R Bb3 Ra2 Rc2+ Kb1 Bd5 Ra1 Ba2+
r1R1k1n1/1r2N3/2RQ1b1q/4r3/Q2K2n1/RB1NB3/2QPNq2/Q1n1nqb1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 e4 c5 Ke2 h5 Ke3 f5 b4 a5 d6 h4 d7+ Ke7 g5 c4 e5 h3 e6 f4+ Kd4 h2 b6 c3 b5 f3 g6 a4 b7 a3 g7 f2 b6 a2 Qc2 Ra7 Bb2 Rh5 Na3 Rc5 Nc4 Rc7 Ne2 g1B Ne5 g2 Nd3 Qe8 d8R Rc5 Rc8 Qf7 Rc6 Nd7 b8Q Rb7 Qe5 Ke8 e7 Ndf6 Ba3 Ra5 Bc5 Ng4 Rc1 a1R Rc7 N8h6 g8N Bg7 Rc6 Bf6 Rc7 Rb8 b7 Raa8 Ba7 Ra5 Ra1 Rb5 Ra3 Rc5 Ke4 Rb5 Be3 Rba5 Qd6 Re5+ Kd4 Qf8 Qb6 Qf7 Qbb2 Qf8 Qa1 Qf7 Qcc1 c2 Qcb2 c1N Qc2 Rc8 b8Q Qf8 Qb7 Rcb8 Qb4 Rb7 Qd6 Qf7 Nc3 Qf8 Be2 f1Q Bd1 Bf2 Rg1 h1Q Ne2 Qh4 Rh1 Bg1 Rh3 Qhf2 Ra6 Bh2 Rac6 g1N Rf3 Nh3 Rg3 Nf4 Rh3 Ng2 Rf3 Kf7 Rg3 Bg1 Rf3 Kg7 e8Q+ Re7+ Ne5 Rb2 Qe4 Rbb8 Rc5 Rb2 Qea4 Bh2 R5c6 Ne1 Qeb1 Rb7 Qf5 Q2g2 Bf2 Bg1 Ra3 Qg3 Be3 Qgf2 Rc8 Re6 Ne7 Qh8 Bb3 Ng8 Qc2 Qh6 R8c7 Kf8 Qd3 Ke8 Qc2 Bh4 Nd3 Re5 Qa5 Bg5 Qa4 Bf6 Rc8+
Qq4n1/bQ5R/1R1Nrkb1/1KnnN3/1bnQ4/5rr1/qB1PRR2/1N3B2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Kd3 e5 Kc4 h5 f4 c5 g4 b3 f6 b2 g5 e4 b6 e3 b7 h3 d6 e2 f5 e1B d7 h4 Rh2 Ra6 Re2 h2 Re3 h1Q Bd3 h3 Kb5 c4 Qe2 c3 Qd1 c2 Qf3 h2 Re2 Re6 Ra7 Nc6 b8R Nb4 Qb7 Bf2 Nf3 Rh3 Nd4 Qc7 d8Q Rg3 Nc6 Qg2 Qd4 h1R Bc4 Nd5 g6+ Ke8 g7 Kf7 Ne7 Rhh3 Ng6 Bb4 Ne5+ Ke8 f7+ Ke7 f8N Kf6 Nfg6 Qh2 Nh8 Qf7 Bd3 Rf3 Bc4 Rhg3 Bd3 Qc7 Nhf7 Qa5+ Kc4 Bg1 Nd6 Qa2+ Kb5 Be3 Qa6 Bf2 Rb6 Be3 Qb7 Bd7+ Qc6 Be8 Bc4 Bg6 Qb7 Nge7 g8R Qh8 Re8 Ng8 Rf2 Qh2 Bf1 Qh8 Na3 b1N Bb2 c1N Re7 Nb3 Re8 Kg5 f6 Nc5 f7 Kf6 Re7 Qh6 Re8 Qf8 Re7 Qb8 f8Q+ Bf7 Qfc8 Bh5 Rh7 Bg6 Re2 Bf2 Rh2 Bg1 Qa8 Be3 Rah7 Bg1 Qcb7 Be3 Nc2 Bg1 Rhf2 Na3+ Kc6 Nc4 Na3 Bf5 Kb5 Bg6 Nb1 Qa1 Qe3 Qa3 Ra6 Nd3 Rg2 Qa2 Qe4 Bgc5 Rgf2 Ba7 Rb6 Nc5 Qd4
B2r2q1/1n1Q1rn1/5B1q/1nb3Q1/r1N3qN/QQ2q2P/b1RR3k/N3RK2 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 f4 Kd6 f6 g5 b6 c5 b7 e5 h3 b3 f7 g3 f5 e4 f6 g2 Bb2 c4 Qh5 e3 Bc1 e2 Qh6 g4 Qg5 c3 Nf3 g1Q Rh2 c2 Nfd2 b2 Nb3 g3 Na3 b1N Bb2 Qe3 Bg2 Ne7 Bc3 Na6 b8Q+ Qc7 Bh1 g2 Bb2 Nc3 Nc4+ Kd7 d6 Ke6 d7 Qd8 Rc1 Nb5 Na1 Nf5 Qbg3 Bc5 f8N+ Kd5 f7 Ke4 d5 Ng7 Ng6 Qg8 d8Q Be6 f8Q Rh7 Qdd6 Rd8 Nf4 Bf7 Rd1 c1Q Qd7 Be6 d6 Bd5 Na5 Ba2 Bf6 Rh4 Nc4 Rg4 Q3h4 Kf3 Qh7 Kg3 Qc2 Ba3 Qc3 Nc5 Qb3 Nb7 Qfe7 Re8 Qf8 Re7 Qa8 Bc5 Qaa3 Rf7 Qc6 Qb1 d7 Qg6 d8R Qh6 Qcd5 Qf3 Qd7 g1Q+ Kd2 e1R Ng2 Ree7 Re1 Re8 Rc8 Ref8 Rd8 Qc3+ Ke2 Qd4 Kf1 Qce3 Rc8 Rd8 Rc6 Qe4 Rd6 Qeg6 Rd2 Qe4 Nf4 Qeg6 Rhe2 Qe4 Ng2 Kh2 Rc2 Rh4 Red2 Qg4 Nb6 N7d6 Nf4+ Kg3 Qgd5 Qd1 Qg5+ Rg4 Ba8 Nb7 Ng2 Kh2 Qbb4 Re4 Qbb3 Ra4 Nc4 Qg4 Nh4+
5r2/B1rNBq2/bQ2N1BQ/2n3Q1/2rR1bq1/k2PQ2n/r3n1N1/3K1Rq1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 f4 Kd7 g4 Kd6 d3 Kc5 b6 h5 d6 e5 f6 h3 f5 b3 d7 Kb4 b7 c5 g5 e4 g6 h4 g7 c4 f7 h2 f6 b2 Qh5 c3 Qh7 e3 Bd2 h3 Bg2 e2 Ra6 Qe7 d8N Nd7 b8B Nh6 g8Q Nc5 Bg5 c2 Na3 c1N Be4 b1R Nf3 Ng4 Bg6 Nf2 Ne5 Bh6 f8Q Qf7 Rf1 h1Q Ne6 h2 Qe8 Qg2 Ba7 h1Q Nd7 Qg4 Rd6 Qhg1 Nc4 Nh3 Ne3 Ka3 Ng2 Rb7 Rd4 Rc7 Bh4 Bg5 Qh6 Ba6 Qb8 Bf4 Qb6 Rf8 Qg5 Rfc8 Qe8 Rf8 Qe7 Bd6 Kd2 e1R Kc2 Re2+ Kd1 Bh2 Qe3 Bf4 Bg5 Qg7 f7 Qg8 Qd8 Qh7 Be7 Ra2+ Qf3 Ne2 Qe3 Re8 f8Q Qf7 Qh6 Rf8 Qd6 Rb8 Qd5 Rb4 Qdg5 Ra4 Qb8 Rc4 Qb6
1B1R4/1n1bQqB1/n3r1RQ/2n1rb1Q/R7/RB1P2qq/qN1K1k1r/6N1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 e4 Kd7 b4 Kd6 d3 Ke5 b6 Kd4 e5 c5 e6 a5 b7 f5 g6 h5 g7 f4 b5 c4 e7 a4 e8R f3 d6 c3 d7 f2+ Ke2 c2 b6 h4 Re7 g2 Bh6 c1N+ Kd2 a3 Qb3 a2 Re1 h3 Re6 h2 Re8 g3 Bg5 Nf6 g8R Qe7 d8B Na6 b8Q Nd7 b7 Qf7 Qc7 Ndc5 b8Q Bf5 Qc2 Nb7 Be2 f1B Qd1 Nb3+ Kc2 Rh5 Na3 N3c5 Bf4 Rh4 Be5+ Ke3 Bdf6 Kf2 Qe7 Rh6 Bg7 Re6 Rd8 Ra7 Rc1 a1Q Nc4 Qa2+ Nb2 Ra8 Qbd6 Ra7 Nf3 g1Q Kd2 Qg2 Rc3 Qh3 Ng1 g2 Ra3 Ra8 Bf3 Be2 Bd5 Beg4 Bb3 Ra7 Ne2 g1Q Bf4 Qgg2 Ng1 Qgg3 Ra4 Re5 Qh6 Bd7 Ra3 Bgf5 Qdh5 Re6 Bb8 Re5 Nf3 Re6 Rd1 h1R Ra1 Rh2 Ng1 Ra8 Bd6 Rc8 Bb8 Rcc6 Ra4 Re5 Ra3 Rce6 Ra4 Qb1 R1a3 Qa2 Bf6 Qf3 Rg6 Qfg3 Bg7
N1BQr3/q4nNn/4n2q/8/2RnK1R1/NQ1P1r1R/2r3N1/QBb1b1kb b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 Kf3 Kd6 h4 Kc5 h5 Kd4 f6 e5 b6 c5 f7 a5 g7 c4 d6 a4 d7 c3 h6 e4+ Kg2 c2 d3 Ke3 b7 c1N h7 f3+ Kg3 g4 b4 f2 b5 a3 b6 a2 Ne2 Ba3 f8R Qg5 d8Q Qh6 Nf4 Nb3 Rf7 Nd4 Rc7 Nf6 g8B Na6 b8N Bb7 Rc4 Nc7 Na6 Rc8 Bh3 f1R Nc5 Nce6 Qb3 Bc1 Na3 Rf3+ Kg2 Ba8 b7 g3 b8N Bd5 Bf7 Re8 h8Q Nh7 Nba6 Bc6 Rb1 a1Q Nc7 Bd5 Na8 Rc6 Nb5 Qa7 Na3 Rc7 Bf5 Bb7 Rh3 Rc6 Kh1 Kf2 Ng2 e3 Bg4 e2 Bg8 Nc7 Ne6 e1B Ng7 Nce6 Rb2+ Kf1 Re2 Rc5 Re4 Rc7 Bf5 Bc6 Rg4 Be4 Nh4 g2+ Kh2 g1N Ng2 Rg3 Kh1 Ngf3 Bf7 Ne5 Bg8 Neg5 Bc8 Rf3 Bd5 Nef7 Kh2 Rf2 Kg3 Kg1 Bde6 Rd2+ Kf4 Rc2+ Re3 Bb7 Bd5 Nge6+ Ke4 Rf2 Rh3 Rf3 Nh5 Nc2 Qa1 Ncd4 Ng7 Rc6 Rb4 Rc2 Rc4 Bc6 Qb5 Kf2 Ra4 Rf6 Ne3 Nfg5+ Ke5 Qa6 Ba2 Bh1 Qb3 Rf3 Rc4 Nf7+ Ke4 Qa7 Ng2 Kg1 Bb1
b1n1Nb2/6RQ/Q2Rb3/1K2kPn1/1N3q2/qr4rQ/B5NN/BnrB3r b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Kd3 Kd6 Kc4 c5 d4 e5 g4 h5 f4 b3 g5 b2 g6 e4 g7 h3 b6 h2 f6 e3 f5 e2 f7 e1N b7 h4 Qg4 h3 Na3 b1Q Bb2 Nd3 Nb5+ Kd7 d6 Rh5 d5 Qa5 Nc7 Nc1 Ra4 Ra7 Ba1 Nd3 Nf3 Ne1 Be2 Rg5 Bd1 Nc6 b8Q Rb7 Ne8 Nce7 Qa7 Nf6 g8B Nh7 Rg1 h1R Nh2 Nc2 Qa6 Rb3 Rb4 Qc7 Kb5 c4 Qg3 c3 Qh4 Rh5 Rg7 Qc1 Qg3 Rg5 Qd3 Ra3 Rd4 Rg3 Qf1 Ng5 Qf3 Kd8 d7 Q7f4 Qh5 Qce3 Qh7 Qef3 Nf6 Kc7 d8N Be6 Nc6 Kd6 Nb4+ Ke5 d6 Nc8 d7 Qa8 d8Q Rb3 Ne8 Qaf3 Qd7 Q3e3 Qdc6 Qc1 Qg2 Na3+ Ka5 Nb1 Kb5 c2 Qf1 Be7 f8N Qa3 Qd3 c1R Bf7 Bd5 Ne6 Bf8 Bg8 Qd2 Nf4 Be6 Ng2 Qf4 Nf1 h2 Bf7 Rg4 Qdh3 Rgg3 Bg8 Rg1 Bf7 h1B Nh2 Re1 Ne3 Ba8 Ng2 Rh1 Bg8 Nb6 Bf7 Bc8 Bc4 Be6 Bd5 Nc8 Bc4 Rbf3 Ba2 Rb3 Rd6+
1Q1Nq3/1BNqR2B/Qn1bQ3/3P1K2/Qn1k4/1qn5/3r1b2/1rBNrq1R b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 e4 Kd6 Ke2 Ke5 Kf3 f5 b6 c5 b5 h5 g5 a5 d3 c4 d6 a4 g6 c3 d7 a3 b7 h4 b6 c2 g7 f4 Kg4 h3 Bd2 c1R Be3 a2 Be2 f3 Qc2 f2 Na3 f1Q Qa4 h2 Nh3 g1B Bf3 g2 Nb5 Re1 Bc1 Bf2 Nc7 Na6 b8Q g1N b7 Qe8 d8N Ne2 Qa7 Bd6 b8Q Nb4 Q7a6 Ne7 g8B Kd4 e5 Nc3 e6 Ned5 e7 Nb6 Kf5 Rh4 Rb1 a1Q Bh7 Qa2 Bb7 Qb3 Rb2 Rg4 Re2 Rg2 Re6 Qd7 e8Q Ra7 Qf7 Qe8 Re7 Ra8 Rg1 h1Q Qe6 Qh2 Rh1 Qg3 Nf4 Qg7 Nfd5 Rh2 Ne3 Qgf7+ Kg4 Qd7 Nd1 Qfe8 Q6b5 Ra5 Qa6 Rae5 Kf4 R5e2+ Kg4 Rb2 Kf5 Rb1 Qba8 Be3+ Bf3 Rd2 Qb8 Bf2 Bb7 Kc5 Nd5 Nb5 d4+ Kc4 Nc7+ Kd3 d5 Kd4 Qa2 Nc3 Q2a4
R1NN2Bq/nr4nR/1b1b1k2/1QPQn2r/2n3qQ/6r1/3bR1RK/2N1B3 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Kf2 Kf7 Kg2 e5 c4 a5 b4 h5 g6+ Kf6 b6 d5 b7 f3+ Kh2 e4 b5 e3 g7 d3 b6 f2 Bh3 f1N+ Kg2 d2 Ra2 a4 Nc3 h4 Nge2 d4 Rh2 a3 Qe1 d1N Qg3 d3 Bd2 Nc6 b8R Nge7 g8R Ne5 b7 Ra7 Na4 Nb2 Nb6 N7c6 Be1 d2 Ra8 d1Q b8Q Rh5 Nc8 Bd6 Nc1 e2 Qb5 Rb7 c5 Ne3+ Kh1 Nbc4 Rg2 Bc7 Rh8 Na7 Rh7 Bb6 Kh2 Qh8 Rd2 a2 Rc2 Kg5 f6 a1B f7 Nf5 f8N Ng7 Ne6+ Kf6 Nd8 Bc3 Rb2 Bd2 g5+ Kg6 Be6 h3 Bf2 e1B Bg8 Qg4 Qc3 Kf5 g6 Kf6 Qg3 Bf4 Re2 Bed2 Be1 Rg5 Kh1 h2 Qh3 Nh5 g7 Rg6 Bf7 Rg5 g8Q Ng7 Qge8 Rh5 Qed7 Bg3 Qd5 Bgf4 Rg3 Rg5 Kg2 h1R Bg8 Rg1+ Kh2 Rh5 Nd6 Nd3 Nc8 Bd6 Qe8 Nde5 Qb5 Rf1 Rg1 Rf3 Rgg2 Rg3 Qh4+
N4K2/3r1N1B/B1BB1q1P/1bqRN3/2qq1b2/r1QQ4/nbR5/1k1Rn2r b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 e5 a4 exf4 c4 d5 cxd5 b5 axb5 Rh6 Bh3 Rh7 Bf1 Rh8 Kf2 Ke7 h4 Kd6 d4 g5 e4 c5 a6 f5 h5 c4 a7 f3 Kg3 c3 b6 c2 b7 f2 h6 Nc6 b8Q+ Qc7 Qb2 Bg7 Bf4+ Ne5 Nd2 c1B Ngf3 Ba6 Rh2 Bb5 Ra5 Ne7 Qc3 Nc6 Bc4 Rad8 a8B Nb4 Bc6 f1Q Ra2 Qf7 Rc2 Na2 Be2 Qf6 Nc4+ Ke7 d6+ Ke6 d7 Nd3 e5 Ne1 Nb6 Rh7 Rh1 Ra8 d8R Ra3 Na8 Bh8 Qdd3 Rd7 Rh2 Qg1+ Rg2 Qe3 Kh2 g3+ Kh3 Qf2 Rh2 g2 Be4 g1R d5+ Ke7 d6+ Ke6 Bf1 Qc5 Rhd2 Rh1+ Bh2 f4 Kg4 Bg7 Kh5 g4 Bh7 g3 Be2 g2 Bf1 Qf8 Kg6 g1Q+ Bg3 Qcd4 Be2 Kd5 e6 Bf6 Ne5 f3 e7 f2 e8B Bb2 Bf1 Bg5 Be2 f1Q Bh2 Rda7 d7 Bf4+ Bg3 Qc5 Kf7 Qc4 Kf8 Kc5 Rb8 Qgf2 d8N Rd7 Ndf7 Q1g1 Bh2 Qh4 Rb6 Qf6 Rd6 Qgg5 Bf3 Qgf5 Bb7 Qh5 Ba6 Qhg5 Qh3 Qgg1 Qcd3 Kb4 Rd5 Qge3 Qe2 Kb3 Qd3+ Nc3 Qg3 Ka2 Qf3 Kb1 Qh3 Rc7 Bc6 Na2 Qc3 Qg1 Qhd3 Rd7 Ng4 Bg5 Bd6 Bf4 Ne5 Qge3 Qa5 Qdc5 Qac3 Qed4 Rd1+
4B1q1/1N2r1R1/1K1P1r2/Bn2kn1R/NR2rR1q/Q1n4B/b2qQ1b1/5r1N b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Ke7 Kd2 Kd6 Ke3 h5 b4 c5 b6 a5 b7 f5 g6 f4+ Kd3 g2 Kc4 a4 Kb5 f3 e4 h4 g7 g3 Qe2 a3 Qb2 f2 Ne2 g1Q Bh6 a2 Qa3 h3 Nbc3 h2 Bh3 f1R Na4 g2 Bd2 c4 Ng3 Nh6 g8R c3 Rg7 Rf6 Rf1 a1R Rf4 Nc6 b8R c2 Rbb7 Qe7 Kb6 c1Q Be1 Nf5 b5+ Nb4 Bd2 Be6 Rb8 Ra7 e5+ Kd7 d6 Re8 Bc3 Na6 Ba5 Nc7 Rb7 Ba2 e6+ Kd8 d7 Qd2 Bg4 Rf1 Bh3 Ne3 d5 Nf5+ Kc6 Qeb4 b6 Re7 Qc3 Nb5 Qa3 Ref7 Rb8+ Ke7 d8N Ra6 Kb7 Kd6+ e7 Ke5 d6 Ra7+ Kc6 Rd7 e8B Rde7 b7 Rfe6 Ra8 Rff6 b8Q Qbd4 Qc7 Qc4+ Kb7 Qgf2 Ka6 g1N Rb8 Ne2 Nb7 Nec3 Qc6 Qfe1 Qf3 Qee4 Kb6 Qcd5 Rg1 h1B Qe2 Bg2 Nh1 Qb3 Rh7 Qc4 Rh5 Qc8 Bg6 Qf8 Be8 Qg8 Qf3 Qee1 Qd3 Qh4 Qc2 Be4 Rg7 Bg2 Qd1 Kd5 Qe2 Re4 Rc8 Kd4 Rc4+ Ke5 Rb4
1qR2n1b/r1bk1r1P/1R2q1Qr/1B6/nK1R1Q1B/B3r2n/QN3q2/3R2N1 b - - 0 1 illegal: No possible last move
q1Nbr3/b2P4/N1B1b1QB/3R1n2/4nQ1n/n1n2r1b/1Q5K/R1Q1RkN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 g4 f5 Kg2 a5 e4 c5 b4 h5 g5 h3+ Kh2 h4 b6 f3 g6 f2 b5 c4 g7 f4 b7 f3 b6 c3 Qb3 a4 Qd1 c2 Bh6 c1B Bg2 f1B Nd2 f2 Qb3 a3 Qf3 a2 Nb3 Bg5 Qd1 Na6 b8Q+ Nc7 b7 Ra3 Nf3 Nf6 Rb1 a1N g8Q Nc2 Qg6 Bg4 Qa8 Nb5 Qa4 Qa8 Ra1 Bc4 Nc5 f1N+ Kg1 h2+ Kf2 h3 Na6 Ng3 Rg1 h1Q Qc1 h2 Rd1 Bh3 Qb3 Be7 Qa2 Rc3 Qab2 Nca3 b8Q+ Nc7 Bf1 Nf5 Bg2 Nh4 Kg3 Be3 Qf8 Qf1 Ng1 h1N+ Kh2 Qe1 Qfb8 Ng3 e5+ Kd7 d6 Ke6 Bc6 Ngf5 Q8b4 Bd5 Qc4 Ncb5 Qf1 Bb3 Qf4 Ba2 d7 Bf2 d8R Rf3 Rb8 Nc3 Rb5 Bd8 d5+ Ke7 e6 Ba7 Qgg3 Nfe4 d6+ Kf6 e7 Be6 d7 Rf8 Rbd5 Rg8 Bg5+ Kg6 e8N Kh5 Nd6 Re8 Qe5 Bd4 Qg7 Ba7 Q3e5 Kg4 Nc8 Rd3 Qg6 Re3 Ne2 Kf3 Bh6 Kf2 Ng1+ Kf1 Qf4+ Rf3 Rxe1#
5nNb/b3R2r/K3B1nR/6kQ/BN1qPr1n/R6R/1Qr1Q1b1/1bB3r1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 e4 Ke7 Ke2 f5 Kd3 h5 Kc4 c5 d4 b3 g4 h4 b6 b2 Kb5 c4 d6+ Ke6 g6 Kf6 b7 f3 g5+ Ke6 g7 h3 d7 f2 g6 Kf6 d5 f4 d6 h2 Qe2 c3 Nf3 c2 Ne1 f3 Nc3 b1B Ra3 Rh7 Nd3 Ne7 g8R Bg7 Nb4 Bh8 g7 Ng6 Re8 Ra7 Bh3 f1R g8B f2 Bhe6 Rg1 Re7 f1R Bgf7 Rf2 Be8 Rf4 Ncd5+ Kg5 Nf6 Ra6 Ng8 Rc6 Rg7 Qf6 d8R Qd4 Re7 Nd7 b8Q Ndf8 d7 Ba6+ Ka5 Bc4 Qf3 Bf1 Qb6 Rc4 Ka6 Bg2 Rc8 Rc5 d8Q Rc3 Ba4 Rc5 Bd2 c1B Rc6 Rc2 Qdb8 Bb2 Bc1 Bc3 Qe8 Bd2 Qeb8 Be3 Qb5+ Qc5 Qe5+ Kh4 Qc3 Kg5 Bd5 Ne5 Rh6 Neg6 Qb2 Qc3 Qh3 Ba7 Qbd3 Qd4 Be6 Re1 Rg1 h1N Qe2 Ng3 Rh1 Nf5 Qhf3 Rg1 R1h3 Nfh4 Qh5#
r2k4/2R3P1/n1K1R1bb/r1Q1BnbR/nQQ1Nr2/q5b1/1B4B1/1n3N1R b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 e5 Kd3 c5 Kc4 h5 f4 h3 d4 b3 g4 h4 f6 b2 d6 e4 Kd5 c4 b6 c3 f7+ Kd7 b7 c2 g5 e3 f5 h2 f6 h3 g6 e2 g7 e1B Nd2 b1N Bg2 Ra2 Ne4 Ra3 Nf3 Rh4 Qe2 Be7 f8Q Nh6 f7 Bg3 Nfd2 Rf4 Nf1 Ra8 Ra6 Bg5 Bb2 c1B Qc4 Qe7 Rc6 Na6 b8B Nf5 Rc5 Qe8 Rc7+ Kd8 d7 Bh6 Qd6 Qe7 Kc6 Qf8 Qdd5 Qa3 Qdc5 Bd2 d5 Bg5 Rg1 h1N Q5b4 Nf2 Rh1 h2 Qbc5 Nd3 Q5b4 Nd6 f8Q+ Ne8 Qfc5 Nd6 Rb7 Nf5 B8e5 Bc1 Rc7 Be3 Qcb6 Ndc5 Q6b5 Na4 Q5c5 B3h4 Q4d4 Bh6 Qba5 Nd6 Bf3 Ke7 Bc3 Bc1 Qdc4 Qa2 Bed4 Bg3 Qab4 Rf6 Rg1 Nb6 Bh1 Rf3 Ba1 Ra3 Bab2 Ra5 Bdc3 Qa3 d8R+ Nd7 Bf3 h1R Bg2 Rh4 Rh1 Bcf4 Rf8 Bd2 Rf4 Ke8 Rg4 Nb6 Rg5 Na4 Rh5 Bdg5 Bd4 Be6 Be5 Nf5 d6 Bf7 d7+ Kd8 Qc2 Rf4 Qc1 Bg6 Q1c4 Nd6 Rc8+ Ke7 d8R Bf2 Rf8 Be1 Rf5 Bg3 Rc7+ Kd8 Rf6 Nf5 Re6
1K1N4/1Br5/1nrQqB1b/nkbb4/Q3qR1P/QN6/2B1N1rb/1rN4R b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 Kd7 h4 a5 b4 c5 d4 e5 f6 f3 Kg3 f2 b6 a4 g6 e4 Kf4 a3 Ke5 g3 b7 c4 g7 g2 d6 Kc6 d5+ Kb5 d7 a2 f7 e3 d6 e2 Bb2 e1B Nd2 Ra6 Nb3 Be7 f8Q Rh6 Nc1 Qc7 d8Q Rg6 Bd3 f1R Bc2 c3 Nge2 Qb6 d7 Nf6 g8B g1B Bd5 Nc6+ Ke6 Qd4 b8N Na5+ Nc6 Bb7 Rb1 a1Q Bf3 Kc4 b5 Bc5 b6 Kb5 Bg2 Ba8 b7 Bd2 b8Q+ Rb6 Qfd6 Bh2 Qa7 Nd5+ Qf6 Qa3 d8N Qe4+ Kd7 Qb3 Kc8 Bh6 Qd4 Rg7 Bf3 Rg2 Qae7 Ra6 Kb8 Nb6 Ra1 Qbe6 Ra4 Ra7 Rc4 Rc7 Ra4 Nac4 Na5 Bd5 Nab3 Na5 Rc4 Rc6 Qa7 Nb7 Qa3 Na5 Nd3 Rb1 Ndc1 Q4f5 Qg4 Qfg6 Rf4 Qge4 Qg7 Rc7 Qd4 Bb7 Qd3+ Q4c4 Bd1 c2 Na2 c1R Bf6 Bd4 Be4 Rc3 Bc2 Bf2 Qd2 Qd3 Bd5 Qde4 Nac1 Ba8 Bb7 R3c5 Bc8 Bd5 Bb7 R5c6 Qc3 Bc5 Qca1 Qh7 Qd4 Qhe4 Qda4+
1r1q3N/2bk2nn/Pn1n2N1/1rrr2Q1/1b1qRBK1/5Q1R/3Q3R/1B2R1N1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Kf2 h5 Kf3 e5 a4 c5 d4 b5 g6 h4 a5 c4 g7 b3 a6 b4 g5 h3 g6 h2 f6 e4+ Kg4 b2 f7+ Kd7 d6 b3 d5 e3 Bd3 c3 Ra2 e2 Bc4 e1B Qd3 c2 Kf5 f3 Nc3 b1Q Qd2 f2 Kg4 f1N Nce2 b2 Bd3 Rh5 Nf4 Ng3 Ra3 Be7 f8Q Nf5 Ra4 Qa2 Re4 b1R Qf6 Bg3 Re1 Kc8 d7+ Kc7 Re4 Rb5 d6+ Kc6 Qg5 Qd5 Qg2 Qc5 Qf3 Qd4 Bd2 c1R Bb1 Rcc5 Bc1 Qf8 d8N+ Kd7 Nf7 Qd8 Nh8 Bf8 Ng2 Be7 Bf4 Rd5 Nh4 Nf6+ Kh3 Bf8 g8R Nh7 Kg4 Ng7 Re1 Be7 Re8 Bf8 R8e4 Rdc5 Qf6 Rhd5 Qe5 Kc6 Qe7 Nd7 Qg5 Nb6 d7 Bd6 Rc1 Rb8 Rce1 Qc7 d8R Be7 Re8 Qd8 R4e2 Bd6 R8e4 Kd7 Qh6 Bc7 Rg2 Bf2 Rg3 Be3 Rh3 Bd2 Qg5 Bb4 Qh6 Ne8 g7 Nd6 g8Q Qc4 N4g6 Qc3 Ne2 Qd4 Rhg1 h1N Rg2 Ng3 Ng1 Ngf5 Rgh2 Ng7 Qg5 Rf5 Qa2 Rfd5 Qd2
1K1N4/2NQ1qk1/rN1B2Qq/3N3q/1RRb4/nQ3q2/n1nBB2P/qr5q b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 g4 hxg4 b6 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Ra7 Bg2 Ra5 Bf1 Ra8 Kf2 f5 e4 Kf7 d4 g5 e5 c5 b7 a2 e6+ Kg7 d6 g3+ Kf3 g2 e7 g4+ Ke2 c4 e8Q f3+ Ke3 c3 Kf4 c2 Ke5 f4 d5 f2 d7 g3 d6 f3 a5 Nh6 a6 Nf7+ Ke6 Qf6+ Kd5 Qh6 d8Q Nc6 b8B Nd4 a7 Ne5 d7 Bc5 Be2 f1Q Nh3 g1Q Na3 g2 Rb1 a1Q Bd2 c1N Bd6 Rb8 a8N f2 Rb2 Nc4 Nb5 Na3 Nf4 Rb6 Rc2 Ra6 Nbc7 Na2 Rc4 Ba7 Qa4 Ndc2 Qb8 Bb6 Kc6 Qe5 Kb7 Qeh5 Qb5 Bd4 Nfd5 Qa1 Qbc8 f1Q Qb8 Rf8 d8N Qge3 Qbd7+ Rf7 Kc8 g1Q Qb6 Qff6 Kb8 Qfe7 Qb4 Rf1 Nab6 Qef3 Qc3 Rd1 Qe3 Qgg2 Re1 Qh1 Qg6+ Kh8 Rf1 Qef7 Rg1 Q3f4 Rg3 Rb1 Rb4 Qff1 Qb3 Qfh3 Rc3 Q3f3 Qg2 Kh7 Rcc4 Kh8 Qg5 Kh7 Qgf5+ Kg7 Qg6+
1N2RQ1K/7n/bN2QB1q/1B1b1r2/brRB1b2/1b1Qbk2/2P5/QN3qq1 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 f4 hxg5 Nc6 g6 Nd4 g5 Nf5 d4 cxd4 exf5 Bb7 f3 Bxf3 Ra4 Bb7 Ra1 Bc8 Ke2 d5 Kf3 Kd7 Kg4 Kd6 Kh5 Ke5 b4 Ke4 g7 a5 b6 e5 f6 f3 b5 a4 g6 d3 f7 a3 b7 d4 b8Q d2 b6 a2 b7 d3 Bb2 f2 Qc1 d1B+ Be2 f1B Qg5 d2 Qc7 Be6 b8B Bc5 f8Q Qd6 Qfe7 Ra4 Ba3 Nf6+ Kh6 Rb4 g8N Bb3 Kg7 h5 Nf3 h4 Qa5 h3 Qf8 h2 Bb2 Rh5 Qg3 Nh7 Kh8 Be3 g7 Qh6 Nd4 Rf5 Bb5 Bg4 Ne7 d1Q Rg1 h1B g8Q Bh5 Qa3 Be8 Nc8 Bd3 Qe6 Qf1 Qe1 Kf4 Bd6 Bhd5 Be7 e4 Nc6 Kf3 Nb8 Bf4 Bh4 e3 Bhf6 e2 Rg8 Be3 Qc1 e1B Bbd4 Bg3 Nb6 Bgf4 Qd2 Be2 Qd3 Qg1 Rg7 Bec6 Rc7 Bd7 Rc4 Qf1 Ba6 Bda4 Bb5 Qg1 Nc3 Qf1 Re1 a1Q Qb2 Qc1 Nb1 Qg1 Qd2 Bd3 Re2 Qcf1 Qa1 B3e4 Qdc3 Bb7 Qd3 Ba6 Rg2 Ba8 Rg7 B8b7 Re7 Bd5 Re8
BR5K/3q1r2/rQ1qr2k/Q1r3n1/2P2qN1/5bQN/Rn6/B1QRNrq1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Ke2 Kf8 Kf3 Kg7 Kg4 d5 Kh5 a5 c4 e5 b4 a4 b6 e4 b7 a3 b5 e3 b6 d3 Rh2 f3 Rh3 d4 Bb2 e2 Qc1 e1R Qe3 d2 Qd3 d1R Rg3 a2 Qb3 f2 Qc2 Ra5 Na3 Qd6 Rg2 Nc6 b8Q Rc5 b7 Nb4 Qc1 Nh6 Nh3 Nd3 Nc2 Re6 Ne1 Rf8 Rh2 Rff6 Bg2 f1Q Bc6 Rf7 f6+ Kg8 g7 Qff4 Rb1 a1R Rg2 Raa5 Ba1 Ra6 Ra2 Nb2 Qc7 d3 b8R d2 Qa5 Qd7 Ba8 Qdd6 Nd3 Rf1 Ne1 Rfa7 Qb6 Nf7 Qa5 h6 Kg6 d1Q Qb6 h5 Qa5 Ne5+ Kh6 Kf7 Kh7 h4 g8N Nf3 Kh8 Kg6 f7 Bb7 f8Q Be4 Qc8 Rf7 Qcd8 Qd7 Qab6 Q1d6 Nh6 Kh5 g6 Ng5 g7 Bf3 Ng4 Kg6 Ng1 h3 g8Q+ Kh5 Qdc7 h2 Nh3 h1Q Qa5 Qg1 Qcb6 Rfe7 Qg7 Rf7 Qe5 Qfe3 Qg3 Qef4 Qcd2 Kg6 Rd1 Kh5 Qc1 Kg6 Ngf2 Kh6 Ng4+
2R1QR1N/r3rNP1/1K4RB/1B2QN2/b1q2q2/1Q1nRn1r/1r2r1k1/2n3n1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kd7 Kd2 Kd6 Ke3 f5 b4 a5 b6 h5 g6 c5 b7 a4 g7 g2 b5 c4 b6 g3 Na3 h4 Qc2 f4+ Ke4 f3 e3 c3 Qb3 f2 Qc2 h3 Ne2 g1R Nf4 g2 Ng6 Nc6 b8Q+ Qc7 b7 h2 Qb3 Ne5 Nc2 Rh3 Nh8 a3 Bc4 Rf1 Rg1 h1R Bd2 a2 Re1 a1R Be2 Kd7 d6 Kc6 d7 R1h2 d8R R8a7 Rf8 Ne7 d5+ Kd6 Kd4 N7g6 e4 R1a2 Bh6 Rb2 Ba6 Nd3 Ne3 Bd7 Re2 Nge5 Bc4 Ba4 Bb5 Re1 Rc8 Nc4 e5+ Ke7 e6 f1Q d6+ Kf6 e7 Qf4+ Kd5 Nd2 e8Q Qf7+ Kc6 Q7c4+ Kb6 c2 d7 c1N Nd5+ Kf5 d8N Kg4 Ne3+ Kg3 Nf5+ Kf3 Re6 Re3 Re1 g1N Rg6 Re5 Re3+ Kf2 Qc7 Ndf3 Qce7 Rd5 Qe5 Rd7 Rcc6 Kf1 Rcf6 Re7 b8R Rhe2 Rc8 Kf2 Rf8 Kf1 Ndf7 Kf2 Rd6 Kg2 Rg6+
N1N3N1/2Bbr1q1/4Q1Bq/r2Qrn1n/q2k4/8/Q1R2P2/KnBnr1RQ b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 b4 a5 h4 gxh4 Qb3 a4 Qc2 Bg7 Qd1 Bd4 Be2 Bb6 Bf1 Ba5 bxa5 Bg4 Nh3 Be6 Ng1 Bc8 d4 Kf7 Kd2 Kf6 Kc3 e5 Kb2 h5 g4 c5 a6 a3+ Ka2 h3 a7 h2 d6 e3 d7 e4 d5 Ke5 d6 e2 b6 e1N b7 c4 g5 c3 g6 e3 g7 h4 Bd2 c2 Nc3 c1N+ Kb1 e2 Qb3 h3 Na4 a2+ Kb2 Qf8 d8Q Nd7 b8Q Nc2 Q8b7 e1R Nb6 Kd4 Bf4 Re7 Bd3 Ndf6 d7 Ne3 Bg6 Nh6 g8Q Ne2 Rc1 Qg7 Qge6 Nc3 Rc2 Nb1 Qg2 Rf8 Qa3 Rff7 Qh8 Rf8 d8B Bd7 Nc8 Rff7 Ba5 Rf8 Bd2 Rff7 Bc1 a1Q+ Kb3 Nd1 Qf3 Qc3+ Ka2 Qb4 Ka1 Qa4 Qaa2 Rf8 Nb6 Rfb8 Nc8 Rb5 Qfc6 Nf5 Ne2+ Kd3 Bd6 Re5 Nf4+ Kd4 Rf1 h1R Nh5 h2 Qh6 Ne4 Nf6 Neg3 Ng8 Rg1 Qh3 h1Q Qhg2 Qh3 Qh1 Qhh6 Qb7 Nh5 Qbg2 Rb8 a8N Rbb5 Bc7 Ra5 Qgc6 Rg4 Qb7 Rge4 Rg1 Re1 Qbd5+
N4R1K/1B2BrBN/N2rq2b/nb1qqr2/3P4/bQ5Q/3RRq2/k4b1N b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 e4 Kd7 Ke2 Kd6 Ke3 Ke5 b4 a5 d6 f5 d7 c5 g6 h5 b6 h4 d3 g2 b5 a4 b7 g3 b8N a3 g7 a2 b6 h3 b7 c4 Qg4 c3 Nd2 h2 Nh3 g1R Nf2 c2 Qh3 g2 Na6 Rh5 b8R Qe8 d8B Qe6 Be7 f4+ Kf3 Kd4 e5 Kc3 Ke4 f3 d4 Ra7 Nc4 Bd7 Nb6 Bb5 Bh6 Kb2 Re1 c1B Na8 Rf5 Re2+ Ka1 Rc8 Rd7 Rcc2 Rd6 Rcd2 Rg5 Kf4 Rf5+ Kg4 Rf7+ Kg5 Ba3 Kh5 Qf6 e6 Qe5+ Kg6 Rf5 Nd1 f2 Kh7 Rf7 Kh8 Rf5 Bf6 Ne7 g8Q Nc6 e7 Na5 e8N Qe6 Bhg5 Bh6 Bg7 Rf7 Nf6 Qe5 Re4 Qe6 Bd3 Rf1 Ree2 g1Q Be4 Qg2 Rg1 h1Q Nh7 Qgh2 Bb7 Qhd5 Qb8 Qhe5 Be7 Rf3 Qc7 Rg3 Rb2 Rf3 Re1 Rf6 Rc2 Kb1 Qcc3 a1Q Qb3+ Qb2 Rg4 Rf3 Rf4 Ka1 Rf8 Rf7 Re3 Rg1 Rd3 f1B Nf2 Rg5 Nh1 Rgf5 Rh2 Qbg2 Rd2 Qgf3 Rhe2 Qg2 Qa4 Qf2 Qab3
nN1r1R2/1q1BRKR1/qBn3N1/7r/1q2k3/BQ1nP2r/4Q2q/QQ2q1r1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kd2 b5 axb5 f5 Nh3 f3 Ng1 f2 Nc3 g5 Ra4 f4 Nb1 Bd6 Ra1 Bb7 Bh3 Bf3 Bf1 Bg4 h3 f3 Ra3 Bf4+ gxf4 Bf5 Ra5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qe7 Ra3 Qg5 Ra1 Qd8 Kd3 Kf7 Ke4 Kf6 Kd5 a5 b4 h5 c4 d6 e3 a4 f5 d3 c5 a3 c6 h4 b6 d2 c7 h3 c8Q g2 b5 h2 b7 a2 g5+ Kf7 b6 Qd7 g6+ Kf6 g7 Nc6 b8Q Rh5 Qe2 d1Q+ Nd2 Qa4 b7 Qb4 Nh3 g1Q Nf4 Qe7 Bg2 f1Q Ba3 f2 Nb3 Qfe1 Na5 f1R Ng6 Rh3 Rc1 a1Q Qe6+ Kg5 f6 Qc7 Qe4 Nge7+ Ke6 d5 g8Q d4 f7 d3 f8R d2 Qb1 d1N Qa7 Nb2 b8B Qcb7 Bc7 Nd5 Bb6 Rd8 Rc5 Rh5 Bh3 Nd3 Bf5 Qgg3 Rg1 Nc7+ Kf7 h1R Re5 Na8+ Re7 R1h3 Rg2 Rg1 Bd7 Nd4 Nc6 Qa2+ Re6 Kf5 Nb8 Nc6 Qa4 Qe5 Rg3 Qaa1 Re7+ Ke4 Qh8 Qac3 Qab3 Qcc4+ Be6 Qed6 Qha1 Qca6 Bd7+ Qe5 Nh8 Qbb5 Rg7 Qbb4 Be6 Qed6 Ng6 Qh2 Bd7+
2N1Qn2/rQ2b3/2q1N1Q1/2R5/bBnR1K1k/1bq1P2q/p3r1B1/BN4rN b - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 g5 c4 d5 cxd5 e5 a4 exf4 h4 gxh4 axb5 Bh6 Nf3 Bg7 Ng1 Bf8 Kf2 Ke7 Kf3 Kf6 g4 Kg5 d4 a5 c6 h5 d6 f5 d7 h3 b6 a4 c7 a3 d5 h4 b7 h2 d6 h3 e3 a2 Bd3 Kh4 g5 Ra7 g6 Ne7 g7 Nbc6 g8Q Na5 b8Q Nc4 Qf1 Ng6 Bb2 Be7 Be4 Nf8 Ne2 Bb7 c8N Bd5 Nd4 Qa5 d8B Qc3 d7 Be6 Rg1 h1Q+ Qfg2 h2 Ba5 Bf7 d8N Be6 Kf2 f3 Ne2 f4 Qb7 Bd7 Qe6 Ba4 Rd1 Rh6 Qed7 Rd6 Ne6 Rd2 Qg6 Qg2+ Ke1 Qh3 Kf2 h1Q Qde8 Rc2 Bb4 Bb3 Rd2 Q1g2+ Ke1 f2+ Kd1 f1B Ng3 f3 Rd4 f2 Nh1 Qgg4+ Bf3 Qe4 Bg2 Ba4 Nd2 Bd3 Rc1 Bb3 Nb1 Re2+ Rc2 Ba4 Ba1 Bb3 Rd8 Qc6 Rd5 Nd6 Rc5 Bb5 Rd5 Nc4 Rd6 Qe4 Rd4 B5a4 Qef7 Nb6 Qd5 Qb2 Qb5 Re1+ Kd2 f1R Qfe8 Rg1 Qa6 Qc1+ Kc3 Re2 Qb7 Qeg4 Kd3 Qb2 Rd8 Qgf3 Rc5 Qc6 Rdd5 Qc1 Ke4 Qc3 Kf4 Nc4 Rd4
7K/QBrq1kn1/1bq4Q/rR4NR/nqb5/1QP1BR1p/N7/Rr4nB b - - 0 1 illegal: No possible last move
kr1bN3/2q2B2/qQ2q2R/R2nN3/p1Q3b1/PrQ2bK1/BNNn4/2n2B2 b - - 0 1 legal: proof: c4 c5 b4 f5 bxc5 d5 cxd5 g5 e4 Qd6 exf5 Qd8 f4 h6 g4 Qd6 Bb2 Qd7 Bf6 gxf4 g5 Qd6 g6 Qd8 Bg5 hxg5 Kf2 Kd7 d4 Kc7 h4 a5 h5 e5 h6 b5 d6+ Kb7 f6 b4 h7 f3 c6+ Ka7 c7 g4 d5 b3 d7 e4 g7 e3+ Kg3 e2 d6 b2 f7 f2 Nc3 e1Q Nf3 b1N Qc1 Nd2 Nd4 Qe6 Nc2 Nc6 Nd1 Nge7 g8B Nd5 Rh6 Ne5 Nb2 Be7 f8N Nd3 Bf7 Rb8 Ng6 Ka8 Ne5 Re8 h8Q Rb3 Qg8 Bf6 Qe1 Nc1+ Qe3 Bb7 c8B Qc7 d8N Bc6 Nb7 Bd8 d7 a4 a3 Rf8 Nd6 Bb7 Rb1 Re8 Bg2 f1B Qc3 Be2 Bf1 Rf8 Ne8 Qa6 Kg2 g3 Kh3 g2 Kg3 Qe6 Qg4 Bc6 Qc4 Bg4 Ba6 Nb4 Bc8 Bcf3 Ba6 Nd5 Bc8 Bf6 d8Q Bg5 Qd6 Bd8 Qdc5 Qa6 Qb6 Rg8 Bce6 g1Q+ Bg2 Qe3 Bf1 Na2 Re1 Qe4 Re3 Nc1 Rd3 Nb4 Rd6 Nd5 Rc6 Qf5 Rc5 Qf6 Ra5 Qfe7 Bf5 Qe6 Bh7 Rh8 Bhg8 Qec6 Bh7 Be4 Nf6 Bef3 Na1 Be7 Bb1 Qe6 Nc2 Rb8 Ne8 Bd8 Ba2
B2KRQ1N/7q/n3NP1N/1q2pbkr/6n1/b3q1n1/1B1BNr1Q/R1R1r3 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 h5 d4 e6 d6 b3 g5+ Kf7 Ke5 c4 f4 b2 f6 Kg6 d5 h3 d7 c3 b6 c2 f7 h2 b7 h4 f5+ Kh7 g6+ Kg7 d6 h3 Nf3 Qc7 d8N Qe7 d7 Ra6 Bg2 Qe8 Qg1 Ra3 Bd2 c1Q Nc3 b1Q Nh4 Qbc2 Ne2 Na6 b8R Rh5 Ba8 Ra2 Qg2 Qa3 Rhc1 h1N Qf2 Ng3 Qh2 Bb7 Rc8 Be4 Rb8 Qad3 Rc8 Ba3 f8Q+ Kh8 g7+ Kh7 Ng6 Nf6 g8N Qe3 Nh6 Qb1 Qg1 h2 Nh8 h1R Qh2 Re1 Rb8 Nc5 Kd6 e5 Kc7 Ng4 f6 Bf5 Ne6 Qe7 Rc8 Qb5 Re8 Na6+ Kc8 Rb2 d8B Qf7 B8a5 Qg8 N8f7 Kg6 Kd8 Qh7 Bac3 Ra2 Ng7 Rc2 Nh8+ Kg5 Bd4 Rc4 B4c3 Rf4 Bb2 Rf2 Ne6+
2Nb1Q2/QRr1nk2/1pn5/1nQ3qR/2N2B1R/b2P3K/2R1Nb2/r2q1Br1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Kf2 c5 Kg2 h5 a4 e5 d6 c4 g6 f3+ Kh3 e4 d3 b3 g5 b2 f6 h4 a5 b6 a6 f2 a7 e3 g7 c3 g6 c2 Ra5 e2 Bf4 e1B Na3 c1B Ne2 b1N Nc4 Be7 Rh5 Ba3 Qc2 Nc6 Rh2 Rc8 a8Q Nc3 Qa7 Rc7 Qc1 Nb5 f7+ Kd7 f8Q Ke6 d7 Bf6 Nd6 Nge7 Qc5 Rg8 Nc4 Bg5 Bg2 f1R Rh1 Qa8 d8R Bf2 Rd7 Ra1 Bf1 Qd8 Rh2 Bf6 Rd4 Qd5 Rg2 Qg5 Rh2 Rh8 g8R Rh6 g7 Rg6 Qfa8 Kf7 Rb8 Nc8 g8N Bd8 Rg2 N8e7 Rb7 Rg7 Kh2 h3 Re4 Ng6 Ne7 Rg8 Nc8 Nge7 Rg4 Rg7 Rgh4 Rg8 Nd4 Rg7 Re2 Rg6 Rc2 Rg8 Kh1 h2 Ne2 Rg7 Bg3 Rg8 Kg2 Rg7 Kh3 h1Q+ Bh2 Qhg1 Bf4 Rg8 Bg2 Qd1 Bf1 Qf5+ Kh2 Rg1 Q8b8 Qg5 Kh3 Rd7 Qbd6 Rc7 Qf6+ Ke8 Qh8+ Kf7 Qf8+
2Q1r3/P1N1n3/1q2N1rN/R1qQ4/2Rn1b2/b1Kp2kQ/r1B2RBn/Q2b4 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 f6 h6 g4 Nc6 g5 Ra4 f5 Ra8 fxg7 Nb8 g6 Ra4 Bf4 Ra8 Bg5 hxg5 Kd2 e5 c4 Ke7 h4 Kf6 a4 b5 c6 d5 c7 g4 a5 e4 c5 Ke5 h5 Kf4 a6 e3+ Kd3 d4 h6 e2 f6 e1B h7 g3 f7 b3 c6 b2 Bg2 b4 Nc3 b1N Ra5 b3 Nb5 b2 Nf3 Qg5 Rh4+ Bg4 c8Q Nd2 c7 Ba3 Qa1 Ne7 g8Q Nbc6 g7 Qc5 Ng5 Nf3 a7 Nh2 Qgd8 Bd2 g8N b1R Qd5 Rb2 Nh6 Re8 h8Q Ra2 Qh7 Qb6 Kc4 d3 f8R+ Nf5 Qhd7 Ne7 Rf6 Bdc1 Kc3 Rg8 Rf7 Rg6 Ne6+ Ke3 Qe4+ Kf2 Qed5 Bd1 Rc4 Bf4 Rf8 Nc6 Qh7 Nfe7 Rf6 Rg4 Qhf5 Rg6 Qh3 Qc5 Qe8 Rd8 c8B Nd4 Nbc7 Qb6 Qg8 Re8 Bd7 Qc5 Ba4 Qb6 Bf3 g2 Bc2 g1Q Be4 Qg5 Bg2 Qf5 Qd8 Qfc5 Qc8 Rg4 Qg5 Rg3 Qd5 Rg6 Qhh5 Kg3 Rf5 Be3 Rf2 Bf4 Qh3+
1n6/p4RRq/brb3B1/P3nr2/1b1K2BB/3N1qnQ/B3N1q1/1N3kQQ b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 Kf2 Ke7 a4 Kf6 d4 Kg5 g4 h5 e4 f5 a5 b5 d6 h3 c6 Kh4 c7 f3 Ke3 Kg3 e5 b4 d7 b3 g5 b2 e6 h2 d5 f4+ Kd4 h4 d6 h3 g6 f2 e7 f3 e8B Qg5 d8Q Rh6 g7 Nf6 g8B Ba6 c8Q Ng4 d7 Rb6 Bg6 Bb4 Qdc7+ Ne5 Be2 f1Q d8N f2 Nc6 Qg2 Bg4 f1Q Ba2 Qff3 Ne2+ Kf2 Rg1 h1N Qe6 Qh5 Bg5 h2 Bh4+ Ng3 Qc1 h1B Qh6 Be1 Nb4 Bd2 Qh8 Qh7 Qcc8 Qh3 Nbc3 b1Q B6h5 Qhc2 Qh7 Qf8 Qcc6 Qcf5 Bf3 Nbd7 Be7 Ne4 Qg7 Qh7 Qgh6 Re8 Bf6 Nb8 Rg7 Ng3 Nd3+ Kf1 Bg6 Re7 Qg4 Rf7 Qgh4 Qh2 Bg4 Qd1 Rc1 Qe1 Nb1 Bb4 Rd1 Bf3 Qcc1 Qg2 Qh2 Bc6 Be7 Rf3 Q6h3 Qf7 Bh4 Qb3 Nb2 Rf8 Rd3 Kf2 Re3 Qh1 Re4 Rf3 Rf4 Qa3 Rff7 Rf5 Qd1 Qe1 Qb3 Qc1 Qd1 Qf3 Qdh1 Qg1 Nd3+ Kf1+ Q2xg1+
1B1r2b1/4n3/QP3qrB/KQ1R1npr/3r1Qk1/Q1NbR3/b2r4/2R1N1B1 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kb3 Kf7 Ka4 Kf6 b4 Kf5 e4+ Kg6 d4 Kh5 h4 f1B b6 c5 e5 a5 e6 c4 b7 g6 f5 g3 f6 g2 e7 c3 e8Q c2 b5 Na6 b8B Ne7 b6 Bh3 d6 Rf8 f7 Rh8 f8Q Nc7 d5 Bd3 d7 Be6 d6 Nf5 Rh3 Nd5 Qe2 Qf6 d8R Kg4 d7 Nde7 h5 Ba2 Bh6 c1R Nc3 Rd1 Rc1 Rd2 Qf1 f2 Re3 Bdc4 Nf3 g1R Ne1 Bg8 Qa6 f1B Qff7 Bd3 Qef8 Nd5 Qa3 Nde7 Qfb3 Rgg2 Qbb5 Rg3 Re8 Rgg2 d8Q Rh7 Qdd6 Rh8 Bc7 Rd8 Qdb4+ Rd4 Bb8 Rh2 Rd8 g5 Bf8 Rh6 Rd5 Rg6 h6 Rh5 h7 Rd1 Q5c4 Rd2 Kb5 a4 h8B Rhh6 Ka5 Rh5 Qab2 a3 Qcb5 Bb3 Qa1 a2 Bh6 Bbc4 Qab2 a1R+ Q2a3 Ba2 Q4a4 Qf8 Bhe5 Qf6 Bh2 Rb1 Bg1 Rbb4 Rc5 Rd8 Rd5 Rf4 Qd4 Re4 Qe5 Rd4 Qf4+
1b3K2/R1N3N1/1P3b1R/2pQQbN1/r1b3B1/1kNB1b2/R1r2n2/n3Bnq1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 h5 Kg6 e5 Kf7 e4 f4 h3 g4 h2 d4+ Kd6 b6 c5 g5 e3 g6 b3 f6 h4 g7 b2 f5 e2 Ra7 e1B Qh5 h3 Nf3 Nc6 Ng5 Nb4 Bd3 Ne7 g8B Bg3 Nc3 b1B Bd2 Qc7 Be1 Bg7 Qe2 Ba6 Qe5+ Kd7 d6 Kc6 d7 Ned5 Bh7 Ne3 Bg8 Qd6 d8R Nbc2 Rdd7 Bb5 Ra2 Ra4 Ra7 Bc4+ Ke8 Qd5 f7 Bf6 f8N Nf1 Nfe6 Qg2 Ng7 Na1 Kf8 Rh6 Bf7 Qg1 Bh5 Bc2 Bg4 Rh4 Nb1 Kb5 Nc3+ Kb4 d5 Kb3 d6 Rh7 d7 Rh5 Qd5 Bb8 d8Q Bb1 Qc7 Rh7 N7e6 Re7 Ng7 Re2 Qcd6 Rc2 Q6e5 Qe3 Rg1 h1B Rg2 Qg1 Rh2 Bf3 Rh1 Bd8 f6 h2 f7 Be7+ Kg8 Bf6 f8N Rg2 Nfe6 Bc2 Be2 Bf5 Bd3 Rc2 Kf8 Qe3 Rg1 h1N Nc7 Nf2 Rh1 Qd4 Bh5 Qg4 Rh2 Qg3 Bg4 Qg1 Rh6
5r2/r5Pr/2k1BnK1/r2RNp2/nn2Q2q/Qb2QNQ1/r2BR2B/1N5b b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kd7 Kd2 a5 Kd3 c5 Ke4 h5 Kf5 c4 e4 g2 b4 h4 e5 a4 d6 h3 b6 h2 e6+ Kc6 b7 a3 b5+ Kb6 d7 a2 d5 f6 d6 g3 e7 c3 e8Q c2 g6 Rh7 g7 Qe7 Kg6 f5 d8Q+ Kc5 d7 Na6 b8Q Qh4 b6 Ra7 b7 Nb4 Qd2 Kc6 Bc4 Nf6 Nf3 g1R Qde7 Rg2 Re1 h1B Qde3 Ra5 Bd2 c1R d8B+ Bd7 Q8f8 Be6 Bc7 Rf2 Rd1 g2 Bh2 g1N Qg3 Ne2 Bb3 Bg8 Be6 Nc3 Qa8 Na4 b8N+ Kb5 Q7a7 Rc8 Qae4 Rf8 Nd7 Re2 Nde5 Rg2 Bc8 Bb3 Be6 Rf2 Be1 Rc2 Qe7 Rc7 Bd2 Rca7 Re1 Nbd5 Qa3 Nb4 Qeg5 Kb6 Re2 Kc7 Qge3 Kd6 Nc3 Kc7 Rc1 a1R Rd1 Ra2 Nb1 Kd6 Bc3+ Kc7 Rd5 Kb7 Bd2 Kc7 Ng4+ Kc6 Nge5+
Q5n1/2n2R2/1B2bNb1/p2R1N1r/3rNPRQ/3nbK2/1B2N2r/1nBq3k b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 cxd5 f4 e3 Nd7 exf4 Nb8 f3 h5 Ra4 g5 Ra5 g4 Ra1 gxf3 g4 Kf7 g5 Ke8 Bh3 Nd7 Be6 Nb8 Bg4 hxg4 Kf2 Kf7 d4 Kg6 h4 Kh5 b4 e5 b6 a5 b7 c5 d6 c4 d7 c3 d5 e4 g6 c2 d6 Ne7 b5 Na6 b8N Ng8 b6 Nc7 g7 e3+ Kg3 e2 b7 e1N Nc6 f2 b8Q f1B Nd4 Bg2 Nc3 Be4 Nge2 Nd3 Qe1 Bg6 Nf5 Ra6 Kg2 g3 Ne4 Kg4 Qa8 Rh5 Rg1 Rc6 Rb1 Rc4 Rb7 Rd4 Ra7 Nc5 Qf2 Nb3 Rb7 Nd2 Ra7 Rh6 h5 Nb1 Qe1 Rh8 h6 Be7 h7 Bf8 Kf1 g2+ Kf2 Kh3 Kf3 Kh2 Rb7 Be7 Qf2 Bh4 Qe1 Bf2 Ra7 Qe7 d8B Be6 d7 Be3 Qf2 Qd6 Qe1 Ne8 Bb6 Nc7 d8R Qd5 Rb7 Qb3 Rd5 Qa4 Rf1 g1R Ra7 Rg2 Rg1 Rg5 Rg4 Rh5 Qf2+ Kh1 Rb7 Ne7 g8N Rh2 Ngf6 Ng8 Qh4 Qb3 Ba3 c1N Bb2 Nd3 Bc1 Qd1 Ra7 Nh6 Rb7 Rd8 h8B Ng8 Bg7 Rd7 Bh8 Rh7 Bg7 Rh5 Ra7 Ne8 Rf7 Nc7 Ne8 Rc4 Bgb2 Rd4 N8f6
Nqq4R/3B1Q1N/n5R1/kQ1nQ3/3p2B1/1bB2q1r/r1P1Nq2/b1K1N2q b - - 0 1 illegal: No possible last move
BR6/b6q/qB3r1R/1Q1bR2n/kp3N1n/1N1q1PQ1/3r4/q1qQRB1K b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 g4 e5 b6 c5 f3 h5 Kf2 e4 Kg2 c4 g5 e3 d6 Kc6 g6 Kb5 b7 e2 d7 e1Q d5 h3+ Kh2 h4 g7 Qe6 d6 Ne7 g8B Ra6 f6 Nf5 Ne2 c3 f7 c2 Be3 c1Q Kg1 h2+ Kg2 Rc6 Nd2 h3+ Kf2 Qef6 Nb3 Nh4 Bb6 Qg6 Rb1 Ka4 Nf4 Bg7 f8Q Bd4+ Ke2 Rh5 Qe8 Rd5 Qe5 Qdf6 d8R Be6 Re8 Nd7 b8Q Qd3+ Ke1 Bf7 Qh5 Qh6 Re5 Nf6 d7 Be6 Qhe8 Nh5 d8R Rd6 Qc7 Bd5 Rb8 Rd7 Bh7 Rf6 Be4 Qh7 Qd6 Qcc4 Rc1 Qa6 Rc6 Rd8 Rg1 h1Q Qed7 Bb2 Kf2 h2 Qb7 Rf7 Qg6 Rf6 Qg3 Bc1 Bh3 Bb2 Re1 Ba1 Bf1 Rd7 Be3 Bd4 Rce6 Ba7 Bb6 Rf5 Rh6 Rf6 Qg2 Ng7 Kg3 Nh5+ Kh3 Qg1 Qg5 Qge3 Qg3 Qc1 Qc6+ Ka3 Qb5 h1Q+ Qh2 Qg1 Qg3 Qgd4 Kh2 Qda1 Qc5 Ka4 Kh1 Be6 Ba8 Bd5 Ba5 Rc7 Qb6 Rc2 Qc5 Rg2 Bb6 Rd2 Qb5+
2QN1Qb1/bb1qR3/3b2P1/K1N1k1pq/B1R5/N2n2R1/Q1bQr1rn/5B2 b - - 0 1 legal: proof: f4 d5 a4 g5 c4 b5 cxd5 Kd7 axb5 Nc6 h4 Ke8 f5 Nb8 f6 exf6 hxg5 Ne7 g4 Bh6 g6 Be6 g5 Bf8 g7 Ng8 g6 Bc8 b3 Ne7 Bb2 Ng8 Bd4 Nc6 Be3 Nb8 Bg5 fxg5 d4 Kd7 Kd2 Kd6 Kc3 a5 e4 f5 b4 h5 b6 c5 b7 a4 b5 a3 b6 f4 Qd3 f3 Qe3 a2 Rh3 h4 Kb3 f2 Qd2 c4+ Kb4 c3 Nf3 c2 Ne5 c1B Nd3 Nf6 g8Q Ng4 Rg3 h3 Na3 h2 Nc5 Nd7 b8R h1B Rb7 Nde5 Re7 Be6 b7 Nh2 b8Q+ Qc7 Qa7 Qd7 Ka5 Re8 Qf7 Bb2 Rc1 a1Q Rc4 Nd3 Qa8 Qd1 Qc8 Qh5 Qg8 Bh6 Qf8 Bf3 Qa8 Bg8 e5+ Kc7 e6 Kd6 Qc8 Bc1 Qa2 Be3 Qb7 Bd1 Qb4 Bc2 Qd2 Rb8 Qc8 Rb1 Qf8 Re1 Qc8 Re2 Qf8 Kc7 d6+ Kc6 Qc8+ Kd5 Qf8 Bg7 Qc8 Be5 Qf8 Qc8 d7 Bd6 d8Q Qd7 Qc8 Rh7 Na4 Ke4 d5+ Ke5 Nc5 Bd4 Na4 Ba7 Nc5 Bdb8 d6 Rf7 Bh3 f1B Bg2 Rff2 Bh3 Qe8 d7 Bg2 d8N Bb7 Bf1 Qc6 Rc7 Qe8 e7 Rg2 Rd7 Qf7 e8B Bd6 Rc7 Qe6 Ba4 Qf5 Rh7 Qd7 Re7+
2NNNb1B/4P1rQ/Rn5K/2Q4n/1Qbp2kn/1r1qB1nR/1Qq4R/6n1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 gxf5 Nf6 d4 cxd4 Bh3 Ng8 Bg4 hxg4 Kd2 Kf7 e4 d5 c4 g5 b4 a5 h4 d3 Ke3 a4 b6 d2 c5 a3 f6 Ke6 f7 a2 b5 g3 h5 g4 Kf4 g2 b7 g3 b6 d4 c6 Nf6 Kg5 Ra5 c7 Ra3 h6 Rb3 h7 Rb5 Na3 Ra5 Nb5 Bg7 f8Q Qd7 Nf3 Rg8 h8B Qd5 Nd6 Nh5 Rh2 Qb5 Qc2 Nd7 b8Q d1Q b7 Ra3 Qa7 Qb1 b8Q Ba6 c8R Rb3 Qb4 Nb6 Rc3 Bc4 Qb2 Qbc2 Nc8 Qf1 Re3 Qfd3 Qfc5 Bf8+ Qg7 g1N Kg6 g2 Kh6 Ne2 Bd2 Bd6 Qh7 Rg7 Ng5+ Kd7 Rf3 g1N Nf7 Ke6 Rfh3 Bf8 Be3 Neg3 Nd8+ Kd7 Nd6 Ke7 e6 Kf6 Qc6 Ke5 Nc8 Kf6 Qg8 Ke5 Qcc5+ Kf6 e5+ Kf5 Qh7+ Kg4 Rb1 a1N Rf1 Qcd2 Rc1 Nc2 Ra1 Ne1 Ra6 N3e2 e7 Qd1 e8N Neg3 e6 Nef3 e7 Nh4 Na7 Q1c2 Nc8
RQQ1bn1k/4pqb1/5B2/1N2BNRr/1KnN1R2/1P3N1r/6r1/q2rB1r1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 h4 Kf7 d4 Kg7 Kd2 a5 Kc3 c5 f6+ Kh7 b3 a4 b6 a3 b7 a2 g6+ Kh6 f7 Kg7 d6 c4 h5 g3 h6+ Kf6 h7 Kg7 d7 f3 d5 f2 d6 f1R Bb2 g2 Rh5 Qc7 d8B Nf6 d7 Ra4 Nf3 g1R Qc1 Ra5 Na3 Nc6 b8Q Rg2 Re5 Rc5 Nb5 Rfg1 Qc2 Qd6 Ba5 Qe6 d8N Nd7 Rh5 Nce5 Nc6 Rd5 Qf5 Rdd1 Rg5 Bb7 Nb4 Bc6 Nc2 Rh2 Bb4 Rh3 Qg4 Rd2 Ba5 Rdg2 Bb4 Kh6 g7 Qg6 g8N+ Kg7 Kd4 c3 Nh6 Nc4 Qf5 Nf6 Qfc8 Be8 Ba5 Nd7 Kd5 Rg8 h8B+ Kh7 Bd4 Bg7 f8R Rh8 Rf4 Nf8 Kc5 Qf7 Nf5 Kg8 Bf6 R8h5 Nca3 c2 Bbe5 c1R Nbd4 Kh7 Be1 Kh8 Kb4 Rd1 Nab5 Kg8 Rc1 Kh8 Rc2 a1Q Ra2 Rgg3 Ra4 R3g2 Ra8
3B3N/1BqPQ3/1RQ3nK/3n2N1/1n2Bn2/1bB1r1b1/pRq4Q/r3Rn1k b - - 0 1 illegal: No possible last move
B2RR2B/R2bb1rQ/5b1q/2N1q2N/q1R1NrPn/n3p1B1/1Q2K3/1qk5 b - - 0 1 illegal: No possible last move
Q1r1rQ1q/nK6/4p2N/QQb1B3/B1PbR2N/2nk4/3qbqb1/1RBR4 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 d5 f4 g5 h6 g4 h5 d3 f6 b3 f5 d4 b6 g3 b7 d2 h7 d3 f7 g2 f6 b2 h6 Ke3 Qe1+ Kf4 Ne2+ Ke3 Nd4+ Kf4 Nf5 Nc6 b8Q+ Kf3 c4 d1B Qb5 d2 Bd3 Be2 Bc2 d1Q Ba4 Ke4 Qea5 Bb7 Nd2+ Kd3 Rb1 Na7 Nf3 Qd2 N3h4 Qb8 Kb6 e6 Rf1 Ne7 Rd1 Bg7 f8R g1B+ Qc5 Qc8 f7 B7d4 Rg8 Bgf2 f8Q Bg2 Rg4 Qb8+ Ka6 Nd5 Qcb5 Nc3 Re4 Qg3 Kb7 Re8 Qc7 Rg8 h8Q Bg1 h7 Qf2 Nh6 Bc5 Ra1 b1Q Qa5 Qb2 Rb1 Rc8 Qff6 Rge8 Qff8 Qf1 Qhg8 Bgd4 h8B Qf2 Be5 Re7+ Qc7 Rd8 Bf4 Bf6 Bg3 Na2 Bf4 Qe5 Qh8 Nc3 Qf7 Ra8 Qb8 Re8 Qf8 Bh8 Qca5 Qh5 Ng8 Bhd4 Be5 Qh6 Qc8 Qh8 Nh6 Rb8+ Kc7 Ra8 Qcb7 Rab8 Qa8 Rbc8+ Kb7
brb2K2/k7/rB1pNPq1/1R1n4/Q3N2B/2N3qR/1nNrB1n1/QQ2n3 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kf2 h5 Kf3 a5 Ke4 e5 Kd5 a4 Kd6 h4 c4 a3 b4 f3 c5 e4 f6 h3 b6 a2 g7 h2 b5 d3 c6 d2 g6 f2 c7 e3 b7 e2 b6 e1N Be2 f1B Qa4 d1N Be3 Nf2 Nh3 Ra5 Na3 Ng2 Rb1 a1Q Ng5 Ra6 Rb5 Qb1 Ne6 Nd1 Nc2 Nc6 b8B Nge7 g8N Ne5 g7 Nd5 Ne7 Nd3 Bg5 Qb3 Ba7 Nde1 Bh4 Nb2 Qa1 Rf8 g8Q Qh3 Qg5 Qg3+ Qf4 Qg6 Qfa4 Rg8 Bf3 Bd3 Be2 Be4 Rf1 h1R Rf3 Rh2 Rh3 Ra5 b7 Ra6+ Bb6 Bf3 b8Q Be4 Nf5 Qe7+ Ke5 Qeg7 Ng3 Bf3 Ne4 d6+ Kd4 Kd7 Qb7 Rf8 Qb8 Bb7 c8N Rh8 Na7 Bc8 Nc6 Qg3 N6b4 Q7g6 Na2 Kc6 Nac3 Rf8 Qa7 Re8 Qh7 Rd8 Qh6 Kb7 Qhc1 Bd7 Qd1 Rb8 Qdb1 Bc8 Nf8 Ndf4 Nc5+ Ka8 Bd1 Bc6 N5e4 Ne3 Bg4 Rf2 Bf3 N3g2 Bd1 Nfd3 Bh5 Rd2 Be2 Be8 Kd5 Kb7 Nd7 Nb4+ Ke6 Bf7+ Ke7 Bd5 Ndc5+ Ka8 Bc7 Ka7 Kf8 Ba8 Ne6 Nd5 Bb6+
2BnN1N1/4PRrp/3qN1N1/1Qb2r2/3r1rB1/1BK1kbq1/4R1n1/3R1Q1b b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bd6 Ba3 Bh3 axb5 Bf8 b6 Bg4 b5 Bc8 Bb4 axb4 g4 Ke7 d4 Kd6 Kd2 c5 e4 f5 g6 c4 b7 b3 g5 f3 g7 b2 g6 f4 e5+ Kc7 e6 Kb6 d6 f2 d7 f3 d5 Kc5 b6 Kd4 d6 Nh6 g8B Qc7 d8R Na6 b8N Nf7 b7 Qa5+ Nc3 b1R g7 Ra7 d7 Qd5 Be2 f1R Rh2 f2 Bg4 Rb4 Nh3 Qd6 Ne4 Nc5 Nf4 Nd3 Ng6 Nf4 Na6 Ng2 b8Q Bb7 Nf6 Bf3 Qb5 c3+ Kc2+ Ke3 Nc7 Rb7 Nce8 Rf4 Ra7 Rd4 Kb3 c2 Kc3 Qg3 Qdb1 Bc5 Qa1 Rf4 Qab1 Rd1 Qa1 Rdd4 Qaf1 Nh6 Bf7 Rf8 g8B Rf5 Rc8 Rc7 d8N Rcd7 Ra1 Rb7 Rc7 c1Q+ Kb3 Qd2 Rd1 Qa5 Kb2 Qb6 Kc3 Qbd6 e7 Rb6 Be6 Nf7 Bc8 Rc6 Ne6 Nd8 Rb7 Rf7 Rb6 Rg7 Rb8 Ra6 Bf7 Raa4 Ng8 Rab4 N6c7 Rdf4 Bb3 Ra4 Ne6 Rad4 Qh1 f1B Rb6 Bc4 Qf1 Bcd5 Ra6 Ne1 Raa2 Bh1 Rhf2 Ng2 Rab2 Bf3 Rbd2 Ke4 Rde2+ Ne3 Qb7+ Rfd5 Qc6 Bfg2 Rd3 Rff7 Rf5 Bf3 Red2 Ng2 Qb5 Rf8 Rf2 Rff7 Rd1 Ke3 Ra2 Rf8 Rh5 Rff4 Rf5 Re5 Rf7 Ref5 Re2+
b4R2/2r1Q2N/3b1NkQ/N2QR2q/nb5p/3KnP2/3NnBB1/1Rb1rn2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 g4 h5 d4 c5 f6 e5 g5 e4 d6 b3 f3 b2 d7 c4 d5 h3 b6 h2 b7 e3 d6 h4 Nd2 b1N Ra6 c3 Bh3 c2 Kd3 e2 Ra5 e1B Re5 Nc6 b8Q Qe8 d8Q Bb7 d7 Nge7 Bg2 Ra7 Nh3 Kg6 f7 Nf5 Qe7 Ba8 d8N Ne3 Nb7 Nd4 Na5 Ne2 Ba3 c1B Bc5 Rg8 Qdb3 Bg3 Qd5 Rc7 Qb4 Be1 Qf4 Nbc3 Rf1 h1N Ba7 Nf5 Bf2 Nhg3 Rh1 Ne3 Rf1 Kg7 g6 Na4 Ng5 Rh8 Rg1 Ngf1 Rh1 Kh6 g7 Kg6 g8N Rh7 Nf6 Qb5+ Ndc4 Bb4 Rg1 Rh5 Ngh7 Qc5 Nd2 Rg5 Qed8 Bd6 f8R Rg3 Qd7 Rh3 Qe7 Rh1 Qde6 Nfg3 Rd1 Re1 Qa2 Ngf1 Qd5 Bca3 Ra1 Bc1 Rb1 Nac3 Qb7 Bca3 Re4 Qh5 Qd5 Bc1 Re5 Na4 Qh6+
1K1b2k1/2Q1Qb2/r3Nr2/nQR1np2/2B5/1B3b2/BrNBR1Pq/1r1bN3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 c5 Kf3 f5 e4 Kf7 d4 h5 e5 c4 d6 c3 d5 b3 d7 h4 e6+ Kg7 d6 h3 b6 c2 e7 h2 e8B b2 b7 Nc6 b8Q Nh6 g6 Ra4 Ra2 Ra3+ Qd3 Qc7 d8N Ra6 d7 Ng4 Bd2 c1R Bf7 Rh6 Bb3 Na5 Ne6+ Kg8 d8Q Rc2 g7 Rf6 Na3 b1B Qe7 Rb2 Qdb5 Bc2 Bfc4 Qe5 Qbc7 Bd1+ Ne2 Bd7 Nc2 Be8 Ne1 Bf7 Rf1 h1R Rf2 Bc2 N2d4 Bd1+ Re2 Qd6 Ndc2 Ne5+ Kf2 f3 Ke3 f2 Kf4 f1B Ra1 Kh7 g8B+ Kh8 Rc1 Rg1 Re3 Bfe2 Ba2 Bf3 Re2 Rh1 Bcb3 Bg7 Ned4 Rg6 Qcd8 Nec4+ Qee5 B7d5 Nb4 Bb7 Ned3 Bc2 Qf6 Rd1 Ne1 Bbd5 Qf7 Qb8 Qd6 Bf6 Qe6 Bd8 Qe7 Na3 Ke5 Rf6 Be6 Bb1 Rc5 Bc2 Bg8 Rdb1 Be6 Bd1 Nbc2 Bh5 Bf7 Bdf3 Bfd5 Bf7 Ne6 Qa8 Qdb6 Kg8 Kd6 Qb8+ Kd7 Qe5 Kc8 N3c4 Qbc7 Qh2 Kb8 Ne5 Bdc4
2k2nQB/1R1N2pb/P3b1b1/RRr4r/2Q1Qq1b/n1N1nB2/K1n3B1/1Q6 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 gxf5 d5 c4 h6 cxd5 Ne7 b4 Ng8 Bb2 axb4 Bd4 Bc5 Be3 Bf8 Bg5 hxg5 a4 Kd7 e4 c5 d4 b5 Kd2 c4 Kc1 c3 h4 b3 a5 c2 Kb2 c1N a6 b4 d6 g4 h5 g3 d5 g2 f6 Be7 e6+ Ke8 h6 Ra7 d7+ Kf8 e5 Qe8 d8Q Ne2 d6 Nc3 f7 Bh4 h7 Ne7 d7 Ned5 Nf3 g1N Qc7 Ke7 f8R Nb5 Ra5 Qf7 Bg2 Qf4 Rf5 Ne3 Nc3 Na3 Qb1 Ne2 Qc4 Kd8 Ka1 b2+ Ka2 Rc7 Rf7 Bg3 Rh5 Rc5 e7+ Kc7 e8B Bh4 e6 Nd4 Rd5 Ndc2 Ne5 Kd8 Re7 Kc7 Bh5 Kd8 Qe1 Kc7 Bhf3 b1B+ Kb2 b3 Rf7 Nb4 e7 Bg6 e8Q Nbc2 Qd1 Rf8 Re7 Rf5 h8B Rh5 Qb1 Ne1 Ka1 b2+ Ka2 Bh7 Qbe4 N1c2 Qg8 b1B+ Kb3 Nc6 d8Q+ Kb8 Qdf8 Nd8 Qff5 Be6 Rb7+ Kc8 Nd7 Bf7 Nf8+ Ne6 Nd7+ Nf8 Qg6 Be6 Re5 Rc7 Reb5 Rcc5 Kb2 Nd4 Ka1 Bd3 Ka2 Ndc2 Qg3 Bg6 Qe1 Bh7 Qb1 Bg6 Qf5 Bh7 Qe5 Bdg6 Qe4
1Q2nQ2/RRp3Q1/1b3BbR/rr1Nqk2/3nNR2/4bB1N/1nn1Pb2/7K b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 e5 a4 exf4 c4 d5 cxd5 b5 axb5 Rh6 Bh3 Rh7 Bf1 Rh8 Kf2 Kd7 Kg2 g5 d4 f5 h4 g3 d6 Ke6 h5 g4 a6 Nc6 h6 Nf6 d7 Qe8 d8Q Bc5 h7 Bb6 Rh6 f3+ Kh1 f2 a7 f4 d5+ Kf5 d6 f3 d7 Nd4 Bg5 Qe5 Nc3 Ne8 Bg2 f1N Qb3 f2 Nh3 Ne3 Bf6 f1N Bf3 Nec2 Ne4 Nd2 Rf1 Rb8 a8R Nc4 Ra7 Nb2 Qb4 Rg8 h8Q Rg5 Qg7 Rh5 Qbf8 g2+ Kg1 Ba6 Qc8 Ra8 Qb8 Bb7 d8R Bc6 Rb7 Ra5 Ra1 Bd5 Rd7 Bg8 Rf7 Bh7 Ra2 Bg6 Ra4 Bc5 b6 Rb5 Raa7 Ra5 Kf2 g1B+ Kg2 g3 Kh1 Bf2 Be7+ Ke6 Rf4 Rf5 Bf6 g2+ Kh2 g1B+ Kh1 Rg5 Qa8 Be3 Rb8 Bgf2 b7 Ba3 Rc8 Qd5 b8N Be7 Na6 Bc5 Nb4 Bb6 Rb8 Qd6 Qb7 Rgb5 Nd5 Qe5 Qa8 Be1 Rbb7 B1f2 Rg4 Kf5 Qb8 Nd6 Rgh4 Ne8 Rf4+
r3Q3/NB1r3k/N4rbb/r3Q3/1Q1qR3/1Bp2Nr1/1qP1Q1R1/2nqBK2 b - - 0 1 legal: proof: d4 b5 a4 g5 axb5 e5 dxe5 f5 e4 fxe4 h4 Bd6 g4 Bc5 f4 gxf4 g5 Nc6 h5 Nce7 Qe2 Ba3 Qd1 Ng6 hxg6 Bf8 b4 c5 g7 Kf7 e6+ Kg6 b6 h5 e7 d5 e8B+ Kh7 b5 a5 b7 d4 b8Q e3 b6 f3 b7 f2+ Ke2 h4 Ra4 d3+ Kf3 e2 Kg2 e1Q Ra1 a4 Ne2 c4 Qf4 a3 b8N c3 Na6 a2 Nd2 Nh6 Ba4 Qd4 Qe5 Ng4 Rg1 Bf5 Bb3 Rg8 Nf3 d2 Rb1 a1R g6+ Kh6 Rb2 Ra5 Ra2 Bd3 Ra4 Be4 Ba3 Bf5 Bc5 Bd3 Qb1 Qc1 Bb6 d1Q Ba7 Qc4 Ned4 Qb2 Nc6 Qd4 Bb6 Bf5 Na7 Be4 Bfc4 f1R Bd5 Nf2 Bb7 Nd3 Bc7 Bf5 Qe2 Be4 Bg3 Nc1 Be1 Bf5 Qa1 Bd3 Qa3 Bf5 Qb4 h3+ Kh2 Bd3 Rg2 Rf2 Kg3 h2 Kh3 h1R+ Kg3 Rh8 g8Q Rh7 g7 Bg6 Qge6 Rg1 g8Q Rd7 Q6e5 Bg7 Qge8 Kh7 Nh2 Rf6 Nf3 Q4d3 Kf2 Bh6 Qbc5 Qd6 Re4 Q6d3 Qb4 Q3d2 Rgg4 Rg3 Kf1 Qd4 Rg5 Rh3 Rg1 Rg3 Rg2
2nQNb2/r2N2Rq/Bq1N1K2/rB1p1Rr1/2R1r3/3bQ3/3bNP1k/1B1r4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 f5 exf5 b5 axb5 Na6 h4 Kf7 g4 Nc5 h5 Qe8 g5 Qd8 g6+ Ke8 Bh6 gxh6 Ra6 Ne6 Ra1 Nf4 g7 Ng6 hxg6 h5 Qe2 h4 Qd2 Rb8 Qd1 Ra8 Ke2 d5 Kd3 Kd7 b4 Kd6 c4 Ke5 f6 Kf4 c5 h5 b6 e5 b5 a5 f7 h3 c6 a4 c7 h4 b7 h2 b8Q h3 b6 a3 b7 a2 Qb3 Kg4 Nc3 Ne7 g8B Ra5 g7 Rh4 Nge2 Bf5+ Ne4 Nc8 Rc1 a1R Bh7 Ra7 g8N R1a5 Qa8 Qd6 b8R Qb6 Rc4 Kf3 Rg1 h1Q Rg6 h2 Rg7 Rg4 Qc3 Rg5 Nf6 Bg6 Ne8 Bf5 Kd2+ d3 N4d6 e4 Qd4 e3+ Kc3 d2 Qd3 Ne7 c8B d1R Ba6 Nc8 Rb7 Be4 Re7 Bf5 Re5 Bg6 Qd4 Bd3 Qc5 Re1 Kd4 Kg4 Rf5 Kh4 Nf4 e2 Ke5 Rd1 Bb5 e1B Kf6 Bd2 Ne2+ Qe4 Ba6 h1R Qe3 Rhg1 Qb8 R1g4 Qc7 Qh1 Qd8 Re4 Rg8 Bh6 f8N Kg4 Nd7 Bf8 Bg6 Qh7 Rg7 Kh4 Ng3 Kg4 Be2+ Kh3 Bb5 Bc2 Bd3 Kh2 Ne2 Bb3 Bb1 Bc2 Bh5 Bd3 Bf3 Qa6 Bg2 Qb7 Bf1 Qb6 Ba6 Rc1 Rc6 Bb5 Ng1 Rd1 Rc2 Ba4 Bfb5 Bb3 Rc7 Bc4 Ne2 Bd3 Rc4
1nbRRR2/2q2BnN/p1n3BR/4nQq1/K2PB3/1rb1nN1q/5k2/Q3N3 b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 g5 b3 d5 cxd5 g4 Bb2 g3 h4 a6 h5 Bc5 Bd4 Nh6 Be3 Rg8 Bf2 Rg6 hxg6 Qg5 Qc1 gxf2+ Kd1 Bb4 g4 Qd8 g5 Ng8 Qc2 Bd6 Kc1 Bf8 Qd1 Qe7 Bg2 Bg7 Nh3 Nh6 Bf3 Kd8 Bg2 Bg4 Re1 Nc6 Kc2 Kd7 Bf1 Rh8 Bg2 Nb8 Kc1 Qd8 Rh1 Ke8 Bf1 Bc8 Ng1 Ng8 Rh2 Bh6 Rh1 Bf8 Kb2 Ke7 Ka3 Kd6 e4 Kc5 b4+ Kd4 g7 f5 e5 h5 b6 c5 b5 f3 g6 c4+ d6 h4 e6 c3 e7 h3 e8B h2 b7 f4 b6 c2 Bg2 f1N Ka4 c1N d7 f2 Na3 Qc7 Be4 Ne7 g8B f3 g7 Nd3 B8g6 Ng3 B8f7 f1Q g8N f2 Nf6 Qg2 Nh7 Nec6 d8R+ Bd6 Qc2 f1N Re1 Nde5 Qc1 Ne3 Nc2+ Kc5 d3 Nh5 Nf3 Ng7 Qa1 Qg5 Re2 Be7 Nce1 Bf6 Rf8 N5c4 Rd8 Bc3 Rf2 N4e5 Rff1 Nbd7 b8Q Rg8 Qa8 Ndb8 b7 Rh8 Nf8 Rh3 Nh7 Nbd7 b8R Rg3 Rb2 Ndb8 Re2 Rh3 Qb7 Rg3 Qbb1 Rh3 Rhg1 h1Q Rg4 Rg3 Rh4 Qh3 Rh6 Ned7 Ng1 Kd4 Qb5 Rf3 Qf5 Rg3 Re8 Nde5 Rd2 Ng2 Ngf3+ Ke3 Rd1 Ke2 d4 Ne3 Rb1 Qf6 Rb5 Qfe7 Rd5 Qg5 Rh1 Kf2 Rdd8 Qg2 R1h4 Qh3 Rf4 Rg1 Nc2 Rb1 Nce1 Rb3 Bc4 Bb4 Qe6 Qhh4 Rff8 Bc3 Qf5 Qh3 Bcf7
nr2N2b/R6b/1nN5/2R3Qb/2Q3q1/q1qbKR1P/BBR2Bkp/2Q1n3 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 g5 h4 gxh4 f4 exf4 e3 h3 Qh5 h2 Qe2 Ba6 Qd1 Bc8 Bc4 a5 Qf3 h5 Bd3 h4 Qd1 h3 Ne2 Rh7 Rg1 h1B Rf1 h2 Rf2 Rh3 gxh3 Ra6 Ng1 Rh6 Ne2 Rh8 b4 Kd7 d6 Ke6 b6 Ke5 b7 c5 d7 f5 b5 f3 e4 c4 b6 a4 Qb3 a3 Bb2+ c3 Nd4 Kf4 e5 Kg3 e6 a2 e7 f4 e8Q c2 Na3 c1N Nc6 Nf6 Nc4 Nd5 Qe3 Qe7 d8R Bg7 Bb1 Na6 b8B Qa3 d4 Bg4 Kd2 Nd3 b7 Nac7 Nd6 Bh5 Qc4 Na8 Rc8 Ndb6 d5 Ne1 Ne8 Rf8 d6 Bh8 Rf1 Kg2 d7 f2 d8Q f3 Bg3 Rg8 b8R Rf8 Bf5 Rg8 Rc1 a1Q Rb7 Rf8 Ra7 Qc3+ Kd1 Qaa3 Qdg5 Rg8 Rc2 Rf8 Nf6 Re8 Rcc7 Rb8 Ne8 Nc8 Ba1 Nd3 Na5 Ne1 Rc5 Ncb6 Rc1 Nd3 Re1 f1B Qef4 Kg1 Bb2 Bg2 Re3 Ne1 Bb1 Bd3 Rc2 f2+ Kc1 Bge4 Ba2 Bh7 Nc6 f1Q Bh4+ Qg2 Bf2+ Kh1 Rf3 Qg4 Kd1 Bdg6 Ke2 Kg2 Qc1 Bd3+ Ke3
1Br1k3/N1rb2Q1/4rbP1/1B1RNQqR/3pr1RR/KN1bq3/7q/2n3B1 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 f4 hxg5 Nc6 g6 Nd4 g5 Nf5 d4 cxd4 exf5 Bb7 f3 Bxf3 Ra4 Bb7 Ra1 Bc8 Kd2 e5 b4 d5 c4 a5 Kc2 h5 Kb3 e4 c5 h4 g7 e3 b6 h3 b7 e2 b8N e1R f6 f3 c6 d3 c7 d2 g6 a4+ Ka3 d4 Nc6 f2 Qb3 d1R Qd3 h2 Nd2 Ne7 g8Q Re6 b5 Ra7 b6 Rde1 b7 Bd7 b8B R1e4 c8R Rc7 Qg7 Rg8 Be2 f1B Na7 Rh8 Qb5 Nf5+ Qc5 Rg8 Bb5 Bd3 Ngf3 Ng3 Ne5 Be7 Nb3 Ne2 Be3 Nc1 Bg1 Rh8 Ra2 Rf8 Rg2 Rg8 Kb4 a3 Rg4 a2 Ka3 a1Q+ Kb4 Qc3+ Ka3 Rb7 Rc6 Qe1 Rd6 Qe3 Rd5 Qa5+ Ba4 Qad2 Bb5 Rc7 Rh4 Qg5 Rh5 Qde3 f7+ Kd8 Rh4 Bf6 Qc2 Rge8 Rh5 Ke7 f8R+ Kd8 Rfh8 Rg8 Qf2 Ke8 Qf5 Rf8 Rh4 Rg8 R8h5 Rh8 Bf2 Rf8 Rg1 h1Q Rgg4 Qh2 Qg8 Ke7 Qh8 Rfc8 Qg7+ Ke8 Bg1
1r6/k4nQ1/3QPNB1/1r1rnK1R/N1n1nb2/1R1Q2R1/1pq1B1RN/1qq5 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 f5 cxd5 h6 b4 f4 Ba3 Bf5 gxf5 Ra7 Bb2 Ra8 Bd4 axb4 Bf2 Ke7 Bh4+ Ke8 Bg5 hxg5 Kf2 Kd7 Kf3 Kc8 Kg4 c5 h4 b5 d4 Kb7 a4 f3 e4 c4 d6 g6 d7 b3 e6 f2 a5 b2 h5 c3 e5 b4 f6 b3 d5 c2 d6 c1N f7 Ne2 h6 Qc8 d8R Nc3 a6+ Ka7 d7 Nc6 e7 Rb8 e8B Ne4 e6 Rb5 h7 Bd6 f8N Bf4 Be2 f1N Qd6 Nfd2 Ra2 Nc4 Nc3 b1Q Rh5 b2 Nf3 Qc2 Nh2 Qc1 Na4 Nh6+ Kh3 Qc7 Ra3 Nf7 Rg3 N6e5 Rb8 g4+ Kh4 Rd5 d8Q Qc5 Rg2 g3 Nd7 g5+ Kh3 Qc7 Rb3 g4+ Kh4 Rf8 h8Q Rg8 Nf6 Rg5 Rg1 g2 Qg7 Rb5 Qd3 g3 Q8d6 Qc2 Ra1 g1Q Raa3 g2 Kh3 Nh6 Bg6 Qgb1 Kh4 g1R Kh3 Ka8 a7 Nhf7 Kh4 Kb7 a8R Qcc1 Rd8 Ka7 Rg8 Rd1 Kh3 Rb8 Kh4 Nc6 Kh3 Rgb5 Kg4 N6e5+ Kf5 Qc5 Qc2 Rd5 Rg3 Q5e3 Rb3 Qc3 Qd3 Qc1c2 Rgh8 Q3d2 Rhg5 Qdc1 Rhh5 Rg8 Rg2 Rgb8 R5g3
3q4/3BRPqN/Q5N1/B2Q3K/2b1N1n1/b1B1Rp2/rr1r1NQk/b1rq4 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 h4 gxh4 e4 f5 Qc2 f4 Qb3 Nc6 Qd1 Nce7 f3 Nf5 exf5 e4 Ra3 exf3 Ra5 Ke7 Ra1 Ke8 Kf2 Ke7 d4 Kf6 b4 Kg5 g4 h5 f6 c5 f7 a5 d6 h3 d5 Kh4 g5 c4 d7 a4 g6 h2 g7 a3 b6 a2 b5 c3 b7 c2 b8Q Qa5 d8B+ Nf6 g8N Qa4 d6 Ra6 b6 Ra8 b7 Qb4 d7 Qc3 Ba5 Be7 d8Q Qe5 Nh3 Ba3 Qbd6 Be6 b8N Bc4 Bb2 c1R Qa6 Rh6 Rg1 h1R Ne7 Rh2+ Bg2 Qc7 Q8d5 Qd8 Nc3 Ra7 Rb1 a1B Nd7 Rh8 Ne4 Ng4+ Ke1 Rf8 Bbc3 f2+ Kd2 f1Q Nhf2 f3 Rb3 Rb7 Bh3 Qg2 Re1 Rg8 Re2 Rg6 Qh1 Rd6 Nf8 Rb4 Nh7 Ra4 Neg5 Kg3 Qf1 h4 Ng6 Qg1 Re3 Rg2 Ne4+ Kh2 Rb7 Rb4 Re7 Rb3 Re2 Rd7 Nd1 Rb2+ Ke1 Ra7 Re3 Rgd2 Qc8 Nf6 Ngf8 Kh1 Bb6 Bb4 Bd7 Raa2 Ba5 Ba3 Qcb7 Kh2 Qbc6 Qg7 Ng6 Ng4 Qa6 h3 Qfd3 Nf6 Qe2+ Kh1 Kf2 h2 Kg3 Ng4 Kh4 Kg1 Ndf2 h1Q+ Kg5 Kh2 Kh5 Qe1 Qf1 Qd1 Qg2+
6r1/B1bnPB2/2rqr1NN/4Rr1p/2RR2N1/2K1brR1/Q4b1Q/1b3k1B b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Ke7 d4 Kd6 Kd2 h5 e4 a5 g6 f5 e5+ Ke7 e6 Kf6 e7 Kg5 d6 Kf4 b6 c5 d5 g2 d7 Kg3 b5 Kf2 d6 a4 g7 a3 b7 g3 b8Q f4 b6 a2 b7 c4 Qa4 f3 Na3 Ra6 Ne2 g1B Nf4 g2 Rh3 Ra5 Kc3 Bh2 Rg3 g1B Bg2 Rf5 Nc2 Nf6 g8B Bh6 Ng6 Be3 Bh1 Kf1 Bf7 f2 Rb1 a1R Rb4 Re8 Qa2 Rg8 Rb5 Qb6 d8R Nd7 Re5 Rb1 Ba3 Re1 Bc5 Qc7 Ba7 Qc6 Kb4 c3 Qc7 Qd5 b8R Ba6 Rb6 Bd3 Rc6 Be4 Rc4 Rf3 Na1 c2 Kc3 c1R+ Nc2 Qd1 Rgg5 Bef4+ Kb4 Bf5 Re6 Nb8 d7 Rfe3 Qe5 Ke2 Rc7 f1R Rcc6 Bhg3 Qeb2 Bc7 Rc3 Re5 Ne3+ Qd2 Kb3 Bb1 Kb4 Bf4 Rg3 Rf5 Kb3 Rf3 Rcc6 Rc4 Re4 Rd4 Rc4 Rd6 Re6 Kf2 Qc2 Re2 Qcb2 Qd5 Kc3 Rc6 Qc2 Na6 Re4 Nc5 Red4 Ke1 Rb8 Qd6 Rb5 Rh2 Qcb2 Rh4 Qg2 Bf2 Qh2 Bh6 Ra5 Re4 Rb5 Re6 Ra5 Nd3 Re5 Bf4 d8N Bg5 Be8 Nc5 Nf7 Nd7 Nh6 Bf4 Bf7 Bg5 Rd3 Bf4 Neg4+ B4e3 Rdd5 Kf1 Rd4
1bn2B2/RQ1R4/4R1r1/6NB/1Nb3RQ/K2Prp1r/1N3n1b/1rrk2Br b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 e4 Kd7 b4 Kd6 d3 Ke5 Kd2 Kd4 Kc2 c5 Kb3 a5 g6 f5 e5 h5 b6 f4 g7 f3 b5 a4+ Kb2 c4 b7 g2 e6 h4 e7 g3 e8R h3 b6 h2 d6 c3+ Ka3 c2 Qe1 Nc6 b8B Na7 b7 Nh6 g8R Ng4 Bh6 c1R Nc3 Be6 Nh3 g1R Ng5 g2 Qh4 Bc4 Re6 Nc8 Rgg6 Bg7 d7 Be5 d8N Ke3 Bf8 Kd2 Ba7 Nf2 Nc6 Bb8 Nb4 Rh5 Bd4 Ra5 Rg7 Re5 Rd7 Re3 Bb6 Bd6 b8Q Bf4 Nb5 Kd1 Qb7 Bb8 Nc3+ Ke1 Qf4 Rh3 Qh4 Rb1 Be2 Rc1 Bd1 Kd2 Bb3 Ke1 Ka2 a3 Na4 Rb1 Ba7 Ke2 Bd4 Rgc1 Rd1 g1R Ba7 Rg4 Rg1 h1R Bb6 Rd4 Rg4 Rd6 Ree4 Rg6 Bbc5 Bg8 Bf7 Kd2 Re6 Kd1 Bd4 Bh2 Bb2 Bb8 Kb3 a2 Ka3 Rf6 Bh5 Rg6 Be5 Bf7 Bh2 Bg8 Rc6 Bc4 Bg1 Rb2 Rb1 a1B Re6 Bh2 Na6 Rb5 Nb4 Bae5 Rb2 Bb8 Re2 Bb3 Ra6 Bc4 Ra7 Re8 Re6 Rb6 Na2 Rbb1 Nb4 Re7 Red6 Re5 Re6 Re3 Nb2+
1BrQ1bRR/1N1q3N/4r3/2Qbn3/R3rNk1/2r1B1q1/R2pP1bQ/Kb6 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 Kd2 h5 Nf3 f5 Ke1 f4 Ng1 Nc6 Bg2 Nce7 Bh3 Nf5 gxf5 Rh7 Bg4 hxg4 Kf1 Rh5 Ke1 Rh8 Kd2 Kf7 h4 d5 c4 g5 Kc2 a5 b4 g3 Kb2 g4 b6 f3 b7 d3 b8R d4 f6 Kg6 e6 Kh5 b5 d2 b6 g2 c5 a4 e7 d3 e8R f2 f7 f1B b7 a3+ Ka2 g3 c6 Bf5 c7 Ra4 c8Q Ne7 Qc5 Ng6 Nh3 g1Q Nf4+ Kg4 h5 g2 h6 Re4 h7 Qd7 Nc3 Ne5 Ra8 Qf2 b8B g1R Rh2 Qg3 Nb5 Bg2 Ra4 Re1 Kb1 a2+ Kb2 Be6 Nd6 Bd5 Nb7 Rf1 Rh3 Rf3 Qdg1 d1B Qh2 Rg8 h8Q Bc2 Be3 d2 Qf6 Bb1 Qd8 Rg6 Rh5 Re6 Rh8 Be7 f8N Bd6 Bg1 Rc3 Nh7 Bf8 Be3 Bc2 Re1 a1R Rh1 Raa3 Ra1 Bb1 Ra2 Rc1 Ka1 Rac3 Qd6 Rc8 Qa3 R1c3 Qc5 Bh6 Reg8+ Bg7 Ng6 Bf8 Nf4+
N2Nr2B/2q1Rnbr/qb1qr3/kq5r/1R6/1KPQB1pR/8/B1Q2B1Q b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Bg2 f4 Bf1 Bb7 Na3 Be4 Nb1 Bf5 gxf5 Nc6 h4 g4 Rh3 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Qa5+ Nc3 Qc7 Nb1 Qd8 Kd2 a5 b4 d5 e4 Kd7 g6 Kc7 g7 Kb6 e5 h5 f6 a4 f7 a3 e6 d3 Kc3 a2 e7 h4 e8R d2 Nh3 g3 Na3 d4+ Kb3 d3 Ng5 h3 Ne6 h2 Rb1 a1B Re7 Qc7 Nc4+ Ka7 b6+ Ka6 b7 f2 b8Q f3 Nd8 Rh7 Nb6 Bd4 b5+ Ka5 Qb7 Nh6 g8Q Bfg7 f8B Nf7 c3 Rc8 Na8 Bb6 Bb2 Rb8 Qe1 d1R Ba1 d2 Rb2 Rb1 Qc1 Rh5 Qh7 d1Q+ Qhc2 Qdd6 Qd3 Rh7 Ka2 Rc8 Rb4 Rb2+ Ka3 Re2 Kb3 Re6 Qbe4 Bgd4 Bh6 Bg7 Be3 Rh5 Bh3 f1Q Qb7 Qe2 Bf1 f2 Qbe4 Qf3 Qh7 Qfb7 Qh8 Qa6 Qh6 Ba7 b6 Qb5 b7 Bb6 b8B Qa6 Rg1 h1R Ba7 R1h4 Rh1 Rb8 Rh3 Rc8 Be2 f1Q Bb8 Qf5 Bf1 Qg5 Qhh7 Qgb5 Qhe4 Rh7 Qh1 R4h5 Bd4 Bf8 Bh8 Bg7 Ba7 Rf6 Ne6 Re8 Nd8 Rfh6 Qhd5 Re6 Qh1 Bf2 Be3 Bg1 Bf4 Bb6 Be3
R2r4/b1NQ1k2/2q3q1/B2qP3/R3Q1RN/1rB1R2p/1NQrr1bK/1q1n4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Ba3 Bg2 Ke8 Bf3 exf3 h5 Nc6 Qa4 Ne5 Qd1 Ng6 hxg6 Bf8 Kf1 h5 e4 f5 b4 a5 d4 c5 b6 f2 Kg2 f1Q+ Kh2 a4 e5 h4 b7 h3 b8N f3 d6 f2 g7 a3 d5 c4 d7+ Kf7 d6 a2 b5 c3 b6 c2 b7 f4 Nc3 f3 Bd2 c1Q Na4 Nh6 g8R Qa6 Bc3 f1Q Nb2 f2 Nf3 Nf5 Qc2 Ne3 Nh4 Nd1 Qe4 Qfc4 Re1 f1R Re3 Rf3 Qc2 Qdc7 d8Q Qd5 d7 Qg6 Na6 Qcc6 b8Q Bb7 Nc7 Bc5 Qe4 Rh6 Qbc8 Qb1 Rh8 Ba7 Qe8+ Kg7 d8B Rb8 Qee6 Rf8 Q6g4 Kf7 Qgg2 Ba8 Qgc2 Rb3 Rg8 Rh8 Qcg4 Re8 Qd7+ Re7 Na6 Bb7 Bda5 Ba8 Rb8 Rd8 Nc7 Bb7 Qc8 Red7 Ra8 Ba6 Qb7 Bf1 Qc8 Bg2 Qb7 Qdc4 Qc8 Rd2 Qd7+ Kg8 Qf3 Q4d5 Qfe4 Qgd6 g6 Re2 g7 Qg6 Qc8 Kf7 g8R Qc1 Rb1 a1R Qcg4 Ra2 Ra1 Qb1 Qc8 Qgd6 Rg4 Qg6 Qd7+ Kg8 Qcd3 Re1 Na4 Rd2 Nb2 Ree2 Ra4 Kf8 Qc2 Kg8 Qd6 Kf7 Qd7+
1r1q4/1B2B1b1/rQNrQ1BR/1p3nk1/R1NP4/3KNq2/3N1Rnq/4q1r1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Bd7 f4 gxf4 h3 Bb5 g5 Bd3 Bb2 Be2 Bc1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 Ke2 Kf7 a4 e5 d4 h5 d6 c5 f6 Kg6 d7 c4 a5 c3 a6 f3+ Kd3 f2 a7 b3 f7 c2 Nd2 h4 Ra4 b2 Nc4 b1R Nf3 h3 Nfd2 h2 Ba3 c1R Qb3 Bg7 f8R Nc6 Qb6 Rh6 Rf7 Rd1 Bf8 Ne7 Bg2 Rg1 Ne3 Rb8 a8N Nf5 Bd5 Nh4 Rf4 Qe7 d8N Ng2 Rf3 Qd6 Rf5 Ne7 Nc6 Qc7 Rf4 Nf5 Be4 Kf7 g6+ Kf6 Bf3 Qd8 g5+ Ke6 Be4 Rb5 Bf3 Rd5 Be4 Rd6 Rf3 Bh8 g7 Rf6 g6 f1Q+ Kc3 Qe2 Rf2 Qf3 Bd3 e4 g8Q+ Rf7 g7 Kf6 Bb1 Kg5 Kc2 Rff6 Qe6 Rg6 g8B Bg7 Bh7 Rf6 Ba2 Rg6 Bd5 Rh6 Nec4 e3 Kd3 e2+ Ne3 e1Q Bg6 Ng3 Qa5 b5 Nb6 Nf5 Nbc4 Rh5 Qb6 Rh6 Be4 Rf1 Rg1 h1Q Bd5 Qh2 Rh1 Rg1 Be4 Qe5 Rh3 Qh2 Bd5 Rh8 Rh6 Rg8 N6e5 Ra8 Bb7 Ra6 Nc6 Qf6 Be7 Rb8 Bf8 Qd8 Be7+
2QBq3/b1Q1n3/1RN4B/P1Q1q2N/1rk1b3/K1Brr2p/3q1N2/1qrR1B2 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ne5 h5 Ng6 hxg6 Ra8 a4 Kd7 d4 Kd6 Kd2 c5 Kc2 e5 Kb3 h5 f6 b5 g7 c4+ Kb2 f3 g6 b3 a5 h4 f7 h3 Bd3 f2 Ka3 f1Q Bb2 e4 Ne2 c3 Ng3 c2 Nc3 c1R Nh5 e3 Rb1 Ne7 g8N e2 g7 e1Q Qc2 Qe5 Nd1 Qg2 Bc3 b2 Nf2 Bf5 Rd1 Be4 Bf1 Qe8 Qd2 Nf5 Ne7 Rd8 Nc6 Ne7 g8Q Rh6 Qh8 Re6 Qd3 Bh6 f8B Be3 Bh6 b4+ Kb3 Kc7 d6+ Kb7 d5 Ba7 Ka4 b3 d7 Kc7 Qc4 Kd6 Ka3 Qgh2 Qa6 Kc5 d6 Qhf4 Qf8 Qd2 Qc8 Kd5 Ra1 b1R Qf4 Rb2 Rb1 Rbc2 Qc7 b2 Qh2 Rb8 d8Q Rb4 d7 Rd6 Qdb8 Kc5 d8B Rd3 Qbc8 Kc4 Ra1 b1Q Qg3 Qd5 Qgd6 Qe5 Ra2 Qdf4 Rb2 Re2 Rb3 Qd2 Rb2 Ree3 Rb3 Rb8 Rb6 Rb7 Ra6 Rb2 Rb6 Rb4 Qc5+
1N4Nq/r5q1/3pkn2/1rN2n2/rBn2r2/bQK1PRQ1/1NQ1BR2/1R4n1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 h3 f5 Ra4 g5 Ra5 Bb7 Ra1 Bf3 gxf5 g4 Be3 g3 Bc1 Bg4 hxg4 Qg5 Bg2 Qf6 Bf1 Qd8 Kd2 Kf7 c4 a5 b4 h5 b6 f3 f6 g2 e3 a4 b5 f2 b7 d3 g5 a3 b6 a2 c5 h4 g6+ Ke6 c6 h3 c7 h2 c8Q Ra3 g7 Rh6 f7 Rf6 Qcc2 Nh6 g8N Qe7 Be2 f1R Nc3 Ra7 Ne4 R1f4 Nf3 g1N Kc3 d2 Rb1 a1R Ne1 Nf5 Nd3 R1a4 Nb2 Rh6 Qe1 Rh5 Qf2 Qg5 Qg3 Ba3 f8R d6 Rf7 Nd7 b8Q Qe7 b7 Nf6 Rf8 Qg7 Rf7 Nh3 Rf1 h1Q Rf2 Ng1 Rf3 Rg5 Rf8 Qhh8 Nc5+ Ke5 Qd8 Kd5 b8N Ke5 Qb6 d1N+ Kb3 Kd5 Bd2 Rh5 Bb4 Rg5 Nbd3 Nb2 Kc3 Nc4 Nb2 Rh5 Ba5 Ke5 Qbb3 Rg5 Bb4 Rh5 Ne4 Ke6 Nc5+ Kd5 Re8 Ne7 Qf2 Rfh4 Ncd7 Ke6 Rg3 Rb5 Rf8 Rd4 Rg2 Ng4 Rf3 Nf6 Qg3 Nf5 Rgf2 Rf4 Nc5+
1b3nBN/1qk1b2P/2QNb2q/8/KQq1N1r1/3bR3/p3nBR1/B1B1Rq2 b - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 a5 f4 e5 g4 exf4 h3 h5 Bg2 h4 Bf1 Ra6 Kf2 Rah6 Ke1 Rh5 gxh5 g4 Ra2 gxh3 Ra4 Qe7 Ra1 Qd8 d4 Kd7 Kd2 f5 Kc2 c5 Kb3 h2 e4 c4+ Ka4 h3 b4 c3 d6 c2 d5 f3 b6 f4 b7 f2 h6 f3 h7 Qh4 b5 Qf4 b6 Qg5 e5 Nf6 e6+ Kd8 e7+ Kd7 e8R Qf4+ Bc4 f1B Nd2 f2 Ne4 Bh6 Nf3 Rg8 Nh4 Bg5 Ra2 Bd3 Qf3 f1Q Ng6 Nh5 Nh8 Ng3 Re5 Kd8 d7 Be7 Rg1 h1Q Re6 Nc6 b8B h2 b7 Nd4 Ba7 Nge2 b8Q Rg4 Qb4 Kc7 d8N Qh6 Re5 Ne6 Bf2 Nf8 Nb7 Be6 Nbd6 Qhg2 Ra3 h1Q Qf6 Qgh3 Rg2 Q3e3 Qg6 Qb6 Ba2 Q1h4 Qe8 Qb7 Rc3+ Bc4 Re3 Bd3 Qc6+ Kd8 Bb2 c1B Ba1 Bd2 Nc8 Bc3 d6 Bd4 d7 Ba7 Ncd6 Bb8 Qa6 Kc7 d8B+ Kd7 Bb6 Kc6 Bbd4+ Kd7 Bdb2 Kc7 Ka3 a4 Bc1 Bf5 Bg8 Bd7 Kb2 a3+ Kb3 Be6+ Ka4 a2 Rd5 Bc4 Rd1 Bd3 Re1 Qh2 Qa8 Q2f4 Ng5 Qc4 Nge4 Rg7 Qa6 Rg4 Qc6+
1b2R3/2Rrn1B1/3Q4/2nnb3/1NB1Pk1R/1n1n1N2/rr1pKR1Q/2r3QB b - - 0 1 illegal: No possible last move
bQ2N3/PR2b1RQ/1Nr5/R1B3nr/3Q1p1k/r1B2n2/1r3b2/Q2KbNb1 b - - 0 1 legal: proof: f4 e5 g4 h5 c4 d5 Bh3 a5 fxe5 f5 cxd5 f4 b3 Qd7 b4 Qf5 gxf5 axb4 Bg4 hxg4 h4 Ke7 a4 g5 d4 c5 e4 b5 h5 c4 e6 Kf6 h6 b3 h7 c3 a5 g3 e7 c2 e8Q b4 d6 b2 a6 b3 a7 g4 d5 Kg5 d7 g2 d8Q+ Be7 f6 g3 f7 Bf5 f8B Nf6 e5 Ng4 d6 Be4 d7 Na6 e6 Ne5 Nc3 b1R Ra5 b2 Nd5 Nc5 Bd2 c1B Bc3 Ra1 Ne2 g1B Nb6 g2 Ng3 b1R Nf1 Ra3 Qf7 Bd5 Qd4 Bf2+ Kd1 g1B Qb8 Ne4 d8R Rb2 Rd7 Nf3 Rb7 Bd2 Rh2 Bde1 Rg2+ Kh4 Rg7 Neg5 Qff6 Bd8 Bc5 Be7 Qg6 Rc8 Qgd3 Rc6 h8Q+ Nh7 Qb1 Be4 Qhg8 Nhg5 Qa1 Bd5 Qd6 Rf8 Qb8 Rf6 Qh8+ Rh6 Qh7 Rh5 Rd7 Bd8 e7 Be4 e8N Be7 Qd2 Rc7 Qe3 Ba8 Qd4 Rc6 Rb7
2nbn3/1r1r4/n1br1k1N/1r1RN1bR/pR1P4/N4n2/5QBB/1KN2QQ1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 e4 Ke7 b4 a5 d4 f5 Kd2 h5 Kc2 c5 b6 a4 e5 h4 b5 c4 e6 c3 g6 f4 g7 h3 b7 g2 b6 g3 d6+ Kf6 d7 f3 d8Q+ Be7 Qd6 h2 Ra3 f2 Nf3 g1N Rb3 g2 Qg3 Rh5 Rb4 Na6 b8N Bd7 b7 Bc6 Ne5 Bd8 e7 Nf3 e8Q g1R Nd3 Ra7 Na3 Rb5 Qee2 Ne7 Kb1 Nc8 Bg2 f1N Bf4 Ne3 Qef1 Nd5 Nc1 Ndc7 Qgf2 Ne8 g8N+ Kf5 Ka2 c2 Nd7 Ke6 b8R Rab7 Ne5 Rd7 Ne2 c1B Nh6 Kf6 Kb1 Rbb7 Bg3 Bg5 Nc1 Rd6 Qfd3 Re1 Qdf1 Re2 Bf4 Rc2 Qde1 Rc5 Q2g1 Rbd7 R8b5 Rcd5 Ra5 Rb5 Qgf2 Rbb7 Rd5 Rb5 Rg1 h1R Bg3 Rh5 Rh1 Rh4 Bh2 Re4 Q2g1 Re2 Qef2 Re4 Nef7 Ree7 Ne5 Rg7 Bg3 Rdb7 Rh5 Rgd7 Bh2
bn2B3/bN2bR2/3p3n/2qqb3/Q3N2Q/2nbQ1N1/1P1NbBK1/2kRB3 b - - 0 1 illegal: No possible last move
K4N2/2q3b1/R3qr1b/2QRpQ1B/Nqk1b1Rr/2qR1N2/2BBP3/b3b3 b - - 0 1 legal: proof: d4 a5 b4 f5 g4 fxg4 a4 b5 axb5 c5 Bh6 cxd4 Be3 Qb6 Bc1 Qd8 h3 g5 Rh2 g3 Kd2 a4 Rh1 Nh6 Ke1 Nc6 h4 Na5 bxa5 g4 Na3 Nf7 Nb1 Ng5 hxg5 Qb6 Bf4 Qc7 Bc1 Qd8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 c4 h4 f4 d3 g6 g2 a6 h3 c5 a3 b6 a2 a7 d2 g7 g3 g8R h2 c6 Bb7 Nc3 Rh4 Qc2 d1Q Qd3 Rb8 a8B d5+ Kd4 Qe1 Kc5 d4 f5+ Ke5 c7 Bh6 c8Q e6 Qb1 d3 f6 d2 f7 d1Q f8N Qa4 Qb5 Bd5 b7 Qa3+ Qb4 Qc7+ Kb5 Qb2 Ka6 Qb3 Qa3 Kd4 Ka7 Kc4 Be3 Qc2 Rd1 Qd3 Na4 a1B Qe7 Qb4 Qc5+ Kb3 Rg5 Bhg7 Re5 Qdd4 Re4 e5 Bf4 Bc6 Qe6+ Qd5 Qf5 Rd8 Bh6 Rd6 Rf4 Rf6 Re4 Qcd8 b8R Qe6 Rb6 Qc7+ Bb7 Bd5 Ka8 Bc6 Ra6 Bd5 Nh3 g1B Bg2 Be3 Bf3 g2 Bh5 g1B Ng5 Bgf2 Rg4 Bf3 Rhf1 h1Q Be4 Qh3 Rd5 Bc1 Bb1 Be4 Rd1 Qhc3 Rd3 Be1 Nf3 Bcd2 Qa7 Kc4 Bc2 Bf4 Qg1 Bh2 Be3 Bf4 Bd2 Bfh6 Qc5+
2Nr3n/2K1B1rn/6Bp/2QB1k1n/nP1R4/1R1N2r1/1r3q2/Q1B1RrqN b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kd2 b5 axb5 f5 Nh3 f3 Ng1 f2 Nc3 g5 Ra4 f4 Nb1 Bd6 Ra1 Bb7 Bh3 Bf3 Bf1 Bg4 h3 f3 Ra3 Bf4+ gxf4 Bf5 Ra5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qe7 Ra3 Qg5 Ra1 Qd8 Kd3 Ke7 Ke4 Ke6 c4 a5 b6 d3 b7 a4 f5+ Kf6 Kd5 h6 Kd6 a3 e4 d2 g5+ Kf7 e5 a2 f6 Kg6 f7 g2 f8B Ra7 c5 Qf6+ e6 Kf5 g6 Ne7 c6 Rg8 g7 Ng6 c7 Nh8 Bc4 f1N c8N f2 Be7 Ng3 Rh4 f1R Nc3 Nh5 Nf3 g1Q Kc7 d5 Rd4 Nd7 Ne1 Nf8 Ne4 Nh7 Nd3 Qf8 Qe1 d1N Nef2 Nc3 Nh1 Na4 Qa5 Qf6 Qc5 Qh4 Rb1 a1R b4 Ra3 Rb3 Rd8 g8B Qhf2 Bf7 Ra2 Be8 Rb2 Bf7 Rg8 Be8 Rg7 Bf7 Ra6 b8Q Rd6 Qba7 Rd8 Bh4 Rg3 e7 Rdg8 e8R R8g7 Ne5 Re3 Be7 Reg3 Rg4 d4 Bcd5 d3 Rd4 d2 Nd3 d1R Qa8 Nb6 Qa1 Rdd2 Bf8 Na4 Re1 Re2 Bd6 Re8 Be7 Rd8 Bg6+
1Qq1QNN1/4P1K1/8/QR1nkN1q/1Nn1B3/2q3bn/bBBpqb2/1n4R1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 h3 g5 Kd2 h5 Ke1 a5 Bg2 Rh6 Bf1 Rf6 h4 Rf5 gxf5 g4 Bd2 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Bg7 Qd2 Bh6 Qd1 Bf8 Kd2 Kf7 Kd3 d5 e4 a4 b4 a3 c4 g3 g6+ Kf6 c5 g2 g7 f2 c6 f3 b6 a2 b7 h4 b5 h3 b6 h2 c7 Be6 c8B Ba3 Qa4 Nd7 b8Q Bd6 b7 Bg3 Qa5 Nb6 Bb2 Nc4 Na3 Ne7 Rb1 a1Q Ne2 g1B Bg2 f1N Nc2 f2 Nb4 Nfd2 Bd7 f1Q Ba4 Qe8 Bc2 B1f2 Rg1 h1N Qbd8 Ke5 g8N Qc1 f6 Qh5 Qf8 Bf7 Qe8 Be6 f7 Qa3+ Bc3 Qa1 Rb3 Nb1 f8N Qaa3 Bb2 Qa1 Qad8 Qa8 Qa5 Qc8 Nc3 Bf7 Nb5 Be6 Nd6 Qe1 Bf3 Qc3+ Ke2 Bf7 b8Q Be6 Bg4 d3+ Kf3 Qh2 Bf5 d2+ Kg4 d1Q+ Kg5 Qe2 Bh7 Qh3 Bg6 Qf5+ Kh6 Qfh5+ Kg7 Bf7 Qaa8 d4 Qa5+ Bd5 Bh7 d3 Bf5 d2 Bh7 Kf4+ e5 Bf7 Bhe4 Nd5 Nf6 Bg8 e6 Ke5 e7 Bd4 Qbb5 Nf2 Nf5 Nh3 Qb7 Bf7 Ng8 Bdf2 Qb8+ Nd6 Qad8 Nc7 Na6 Be6 Rb6 Ba2 Nb4 Nd5 Rb7 Qb5 Qa5 Qbe2 Qba7 Nc4 Rb5 Ne3 Qb7 Nc4 Qb8+
Q7/6R1/1q4RQ/br2B3/pNb1Nqb1/Bk1NnN2/rp5P/QKBq1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 c4 d5 cxd5 Qd6 Na3 Qe7 Nb1 Qd8 axb5 c6 b4 Kd7 b6 Qe8 b7 Qd8 b5 Ke8 b6 Nh6 Bh3 Ng8 Bf5 Nd7 Bd3 Nb8 Bb5 cxb5 e4 Kd7 d4 Kd6 Kd2 g5 Kc2 a5 h6 f5 h7 f3 Ba3+ b4 Qd2 f2 Nc3 f1Q Nf3 f4 Rg1 Nd7 b8N g4 b7 g3 Na6 g2 Nc5 Ndf6 Nd3 Bg4 b8B+ Qc7 Qe1 Nh5 Kb1 Ng3 Qc1 Nf6 e5+ Kd7 d6 Ke6 d7 b3 d8B b2 Ne4 Kd5 e6 Qb6 Qd1 Kc4 d5 Bb4 d6 Nd5 e7 Ne3 e8Q Bc3 Qc1 Kb3 d7 Rg8 h8Q Rg5 Bf6 Rb5 d8N Qf2 Qc6 Ngf1 Bbe5 Qh4 Bg5 Bd2 Nfe1 f3 Qch6 f2 Nc6 Qg3 Ncb4 Qf4 Nf3 Be1 Rh1 g1Q Qe8 Ng3 Qd8 f1B Qdh8 Ra7 Qa8 Bc3 Qe1 Be2 Qc1 Qd1 Rg1 Ngf1 Bh4 Be6 Rg6 Bc4 Be1 Ra6 Bd2 Ra7 Nfe1 Bg4 Nf3 Qe2 Qe1 Qd1+ Bc1 Rf7 Na2 a4 Rg7 Ba5 Nab4 Rf5 Rg6 Rh5 Rg7 Rh3 Nfg5 Bf5 Ndf2 Qdg4 Bd2 Bce6 Qd1+ Kc4 Ka2 Ng3 Qh1 Nc2 Rg1 Bd5 Rg2 Bd7 Qa1 Qd1 Bc1 Nf1 Rg4 Rc3 Rg1 Nce3 Nf3 Rd3 R1g6 Bg4 Kb1 Bg8 Nc2 B8e6 Bb4 Ra3 Nd3 Ra2 Bc5 Kb3 Ba3 Bc4 Ncb4
1R5b/BQ1Q1nbb/r7/R1K2Bpq/1pR1Nn2/2N3q1/P1kr2Q1/nR2B3 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 h4 g5 f6 b5+ Kc5 e5+ d6 b3 f5 b2 h6 b4 f7 d3 h5 d2 f6 Ba6 h7 Bd3 h6 Bc2 Bd3+ Ke3 Nh3 e4 Qg4 Ra6 Nc3 b1N Qg2 Nc6 Nf2 Qb8 Rh4 Nce7 d7 Na3 d8Q Bg7 f8B Nd5 f7 Qg3 Qd7 Nf4 Bd6 Bb1 f8Q Nc2 Bb2 d1Q Qa8 Kd2 Qab7 e3 Bb8 e2 Ba7 e1B Bf5+ Nd5 Rc4 Qh5 Nfe4+ Kd3 Ne2 Bec3 Bc1 Bcf6 Bd2 Bb2 Be1 Bbe5 Qdc8 Nf4 Qe8 Nd4 N2c3 Nb3+ Kb5 Bc2 Rb1 Na1 Qec6 Ne7 Kc5 Nc8 Qe6 Rd8 h8R Nd6 h7 Nf7 Rg8 Bef6 h8R Rdd6 Rh7 Bh8 Qed7 Bfg7 Rb8 Rd4 Rb3 Bb1 Ra3 Bc2 Ra5 Bb1 Bd2 Kc2 Be1+ Rd2 Rh6 Qg6 Rh2 Qh5 Rh1 Rf6 Bf2 Nd5 Bh7 Ra6 Nd6+ Kb2 Rg1 Bd3 Rb1+ Kc2 Be1 Nf4 Bg6 Bf5 Nde4 Qh1 Bh5 Bh7 Bg6 Qh5 Bf5
1Rb3nQ/2b5/3qr3/2pN2b1/R3BB1N/2qQBKQk/4P1p1/QNr1rn2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 e5 a4 exf4 c4 d5 cxd5 b5 axb5 Rh6 Bh3 Rh7 Bf1 Rh8 Kf2 Kd7 h4 g5 d4 f5 d6 Ke6 a6 c5 d7 g3+ Kg2 g4 a7 Be7 h5 Nc6 h6 Bg5 h7 Ne5 b6 Nc4 b7 Nd2 b8Q Qb6 d8Q Qd6 d5+ Ke5 Rh4 f3+ Kh1 Kf4 Bg2 f2 Be4 f1R Kg2 Re1 Ra4 Bh6 Qf8 Bg5 Qbb3 Rb8 a8N Rb6 Nc7 Ra6 Bb2 Nf1 Nf3 Rb6 Bd4 Rc6 Kg1 g2 Qbd3 Kg3 Be3 f4 Rh6 Rb6 Nh4 Kh3 Kf2 g3+ Kf3 g1B Re6 g2 Re8 Bh2 Qf6 Qe5 d6 Qc3 d7 Re6 d8B Bg3 Nd5 Bh2 Kf2 f3 Be7 Bc7 Bd6 Ne7 Qf7 Rf8 h8Q Ng8 Re7 Rd8 Bdf4 Rdd6 Re8 Rb6 Na3 Rb1 Rd8 Rc1 Nb1 Bd7 Rb8 Bc8 Bd2 Ng3 Ke3 f2 Kf3 Nf1 Bde3 Ng3 Bd4 f1Q+ Bf2 Qh1 B2e3 Qh2 Qff6 Qa5 Qa1 Qc3 Qdd4 Nf1 Q1d3 Qa3 Bd2 Qb4 Qf2 Qc3 Bfe3 Qd6 Bf4 Qe7 Bde3 Qd6 Qg3+
2bb2k1/K1Br1nB1/1N1P3b/2R1QB2/2Q1Np2/N1q2B1p/1n1Qr2r/1q2R3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 h5 e4 c5 g4 f5 d4 Kf7 e5 h4 g6+ Kg7 g5 c4 b6 c3 b7 b3 d6 c2 e6 h3 d5 f3 Ke3 f4+ Kd4 f2 Kc5 b2 e7 Rh7 e8Q Bf5 Ne2 Rh6 Ra5 Rh7 Qe5+ Nf6 Bg2 f1R Qd2 Bd7 Bf3 Ra7 Na3 b1Q Nc3 Ra8 Ne4 Bc8 Bb2 Kg8 g7 Nc6 b8N c1B Nd7 Nb4 Nb6 Rf2 Re1 Re2 Kb5 Rb8 d7 Ng4 d6 Qf6 d8B Nh6 Bc7 Nd3 Kc6 Be7 Rc5 Nf7 Kb5 Rb7 Ka6 Bd8 Bc3 Rb8+ Ka7 Nb2 Bd4 Rh4 Bc3 Rg4 Bd4 Rgg2 Bc3 Rh2 Bd4 Kh7 g8B+ Kg7 Bh7 Rb7+ Ka6 Kh8 Bf5 Kg8 g6 Qh8 Qa5 Be3 g7 Bg5 Qd2 Bh6 Bc3 Bf2 Bd4 Bh4 Bc3 Bd8 Bd4 Rb8+ Ka7 Rb7+ Ka8 Be7 Qf6 Bd8 Bb8 Re7 Bc7 Rd7 Ka7 Ne5 B5g4 Kh7 Qe7 Kg6 g8Q+ Qg7 Qge6+ Kh7 Qc4 Nf7 Bf5+ Kg8 Bc3 Qd4 Qee6 Qdd3 Bg7 Qc3 Qe5
q1B1B3/5r1q/3p1Rbk/b2R3n/bBr4p/2N2Q2/n3PKN1/Q1BR1Q1r b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 d4 c5 f4 exf4 a4 cxd4 axb5 Qb6 Rh5 Qc7 Rh1 Qd8 c4 f5 g4 Kf7 g6+ Kg7 a6 h5 a7 d3 g5 f3 c5 d2+ Kf2 h4 b6 f4 c6 Qe8 b7 Qd8 c7 Nc6 b8B Bb4 Nh3 Ba5 Bg2 Nb4 Rf1 Na2 Nc3 Nf6 Bh1 Bb7 c8B Nh5 Bd6 Rf8 Bb4 d6 Qb3 Rb8 a8Q d1B Qb2 Be4 Qb1 Kg8 g7 Kh7 g8R Ba4 g6+ Kh6 g7 Rf7 Re8 Qc7 g8Q Bg6 Re5 Qc6 Qa7 Qa8 Rd5 Rb6 Qd8 Rc6 Qf6 Rc4 Qe3 Bc6 Qb2 Ba4 Rb1 Kh7 Qa1 Kh6 Kg1 f2+ Kg2 Rcc7 Qf3 Rc4 Rfd1 f1R Rb3 Rg1+ Kf2 Bd7 Bg2 Rh1 Ra3 Bd8 Ra7 Ba4 Re7 Ba5 Re6 Rd7 Qf5 Rf7 Rf6 Kg7 Q3g4 f3 Nf4 Kh7 Bh3 Kh6 Bd7 Qd8 Be8 Qa8 Ke3 f2 Qf3 f1Q Ng2 Qe1 Qf1 Qg3+ Q5f3 Qg5+ Kf2 Qd2 Rg5 Qc2 Bc8 Qb1 Rff5 Bh7 Rf4 Qg6 Rgd5 Qg8 Bc6 Bg6 Be8 Qh7 Rf6+
rb2Nr2/1nN2q2/1pQbq3/4B1KB/1pRP1R2/R5n1/1k2q1N1/R1Q3Qb b - - 0 1 legal: proof: e4 d5 b4 a5 c3 d4 cxd4 axb4 g4 c5 d3 f5 exf5 h5 gxh5 c4 Bg5 cxd3 Bf4 Qd6 Bc1 Qd8 Kd2 Kf7 Ke3 Kf6 Kf4 g6 h4 b6 a4 d2 h6 e6 h7 Nd7 a5 Qe8 a6 Nb8 h5 Qd8 a7 Nc6 h6 Qe8 Nc3 Nge7 Nge2 Qd8 Ne4+ Kf7 f6 e5+ Kg5 Ke6 f4 Kd5 f7 Kc4 f5 Be6 f6 Qe8 Rh3 Nf5 Rha3 Bd6 f8N Bd5 f7 Na5 Ne6 Ng3 f8R Nb7 Rf4 Rf8 h8R Qf7 Nf6 e4 h7 e3 Nc7 Bh1 Qe1 d1Q Nfe8 Qd3 Bh3 Qb3 Bg4 Kd3 Bf3 Kc2 Bh5 Qbe6 Bd2 Kb2 Qg1 Rc8 a8Q Rd8 Nc3 e2 N3d5 e1Q Ne3 Qe2 Ng2 Rc8 Qa4 Rb8 Qc6 Ra8 Na6 Bb8 Rg8 Bd6 h8Q Bb8 Qe5 Bd6 Qec5 Bb8 Kh6 g5+ Rg6 g4 Kg5 Nf1 Nac7 g3 Nh4 g2 Be1 Qc8 Bg3 Qcd7 Bh2 Ng3 Re6 Qd6 Ree3 Qde6 Rec3 Qh7 Rc4 Qhf7 Qe1 g1B Ng2 Bf2 Qg1 Nf5 Re4 Bg3 Rg4 Bd6 Be5 Ng3 Rf4 Qf2 Qe4 Qc2 Qee1 Qe4 Qc6 Qe2 Qc1#
5B2/qrk3p1/Q4Q1b/1b2bK2/1QPpQ1R1/n1Nnq1N1/r1R3R1/qB4B1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 e5 Kd3 d5 c4 Kd7 f4 b3 h4 b2 h6 Bc5 f6 Ra2 h7 Bd6 h5 Qe7 f7 Ra4 f8B Bb4 b6 Bd2 f5 Nc6 b7 Bh6 b8Q Ra2 f6 Na7 f7 Nb5 Qf3 Na3 Rh4 Ba6 Rg4 Bb5 Qe4 Nf6 Be3 Rg8 Qa8 Kc7 h8Q Nd7 Nc3 Qe6 Rc1 b1Q+ Rc2 Qa1 Nge2 Nc5+ Kd2 d3 Qa6 d4 Ng3 Qe7 Qhh7 Qe8 Qhf5 Qb8 Qff6 Qa7 Be7 Rb8 f8Q Rb7 Bh3 Bg5 h6 Qg1 h7 Bh6 h8R Qf2+ Kd1 d2 Rh7 Qg1+ Ke2 Nd3 Kf3 Qc1 Bg1 d1Q+ Nce2 Qe1 Nc3 Qa1 Bf1 Bc1 Rhh2 Bh6 Rhg2 Qec1 Qeg6 Qg5 Ke4 Qe3+ Kf5 e4 Bb4 Qec1 Bf2 e3 Bg1 e2 Qge8 e1B Qe4 Qe3 Qb8+ Kd7 Bf8 Bf2 Qbd6+ Kc8 Qb4 Kc7 Nh5 Bg3 Be2 Be5 Ng3 Nf2 Bd3 Bef4 Rc1 Be5 Bb1 Nd3 Rcc2
2B1rR2/B4pk1/1P6/1QNq1b2/QB2R1R1/4nq1N/2pNB1r1/K1b1nrq1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 d4 c5 Kd2 g5 Kc2 g4 Kb2 c4 e4 f3 h4 b3 d6 f2 d7+ Ke7 d5 Kf6 h6 g3 h7 g2 e5+ Kg6 h5+ Kg7 d6 Ra3 e6 Ra5 e7 Ra6 e8B Ra7 h6+ Kg6 Be2 f1Q Nd2 Qc7 d8Q Qf5 d7 Qa5 Nh3 g1Q Ra4 c3+ Ka1 Ne7 Ba3 Nd5 Re4 Qf3 Qb6+ Nc6 d8N Bf5 Bd7 Ne3 Ne6 Ne5 Bc8 Nd3 Nc5+ Bd6 Qa6 Re8 h8B Ne1 h7 c2 Bd4 Rd7 h8R Rdd8 Qa7 Bf4 Qb1 Rd5 Rf8 b2+ Ka2 Qd8 Bb4 Rde5 Rh2 Kg7 Rg2+ Bg5 Qa3 Qd6 Qb3 Qd5 Qa1 b1R Rgg4 Rd1 Qb1 Rc1 Ka1 Rd1 Qa4 Rc1 Na6 Rd1 Bdc5 R5e6 Ba7 Rg6 b6 Bh6 Rgf4 Rg2 Nc5 Nd3 Ba5 Rf1 Rh4 Ne1 Qbb5 Nc4 Bb4 Be3 Ndb3 Bc1 Nd2 Ne3 Rhg4+
2B4R/Q1Bp1bq1/R1r1Pnkp/1K2Nnn1/1R3bRr/1N5Q/3QB1q1/1b6 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 d4 c5 f4 exf4 a4 cxd4 axb5 Qb6 Rh5 Qc7 Rh1 Qd8 Kd2 f5 Kd3 Kf7 Kc4 d3 g4 f3 e4 f4 b6 d2 b7 f2 a6 f3 e5 Bd6 e6+ Kg7 g6 Bg3 a7 Kf6 g7 Qf8 g5+ Kf5 g6 Kf6 Ra6 Kg5 Be2 f1N Kb5 f2 c4 Nf6 g8Q Bf4 c5 Qg7 c6 Ne3 c7 Nc6 b8R Bb7 c8B f1Q Nf3+ Kf5 Rh2 Qg2 Ne5 Nd8 Rh4 h6 Rg4 Be4 Qh1 d1B Nd2 Bb1 Nb3 Bdc2 Qh3 Nf7 Bd2 Be4 Ba5 Ng5 Bc7 Bf3 Qf8 Bfe4 Qb4 Bf3 Bb7 Rc8 Qd2 Bfe4 Bb6 Rc2 Bc7 Rc6 Rh8 Rc8 a8Q Rc4 Qa7 Rd4 Bd8 Rc6 Bc8 Ra4 Bc7 Rac4 Qg3 Bf3 Rh4 Bh5 Qf3 Qh7 g7 Bf7 g8R Qg7 Rg4 Re4 Qh3 Ra4 Nd3 Kg6 Rh4 Nf5 Rg4 Be3 Rb4 Bf4 Re4 Be5 Rh7 Nf3 Rd8 Qf8 Qc3 Kg5 Rh8 Bh2 Ne5 Rd4 Re3 Rh4 Qd2 Bf4 Re4 Kh5 Rc4 Kg5 Rg8+ Kh5 Rg6 Qg7 Rg4 Ng5 Rca4 Rc4 Rh8 Rc6 Nf3 Kg6 Rc4 Be5 Rb4 Bf4 Ne5+
1r1N3q/KQp1R2n/Q2q1NBR/2Q2r1P/3NpqNn/Bb2rk1b/4R3/8 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 h4 g5 g3 gxh4 Ra5 h5 Ra4 h3 Ra1 h2 Bh3 h4 Qe2 Bh6 Bf1 h3 Qf3 Bg5 Qd1 Bh4 gxh4 Kf7 Qc2 Kf8 Qd1 Ke8 Ke2 Kd7 f4 Kd6 d4 e5 b4 a5 b6 e3 Kd3 e2 Kc4 e1R Kb5 a4 b7 a3 f5 a2 f6 Ne7 f7 Qg8 f8Q Ra6 Nd2 Re3 Qa4 Qg5 Ne2 Qg8 Nf3 Qg3 Ba3 Rd3 Re1 Nc6 b8N a1Q Nd7 Qg2 Nf6 Ra8 Qa6 Qg5 h5 Qgc1 Rg1 h1B Nh2 Ra7 Rg7 Re3 Nhg4 h2 Bg2 Be6 Be4 Bg2 Bg6 h1Q Rh7 e4 Rh6 Qab2 Nd7 Rb7+ Qb6 Rh7 Ka6 Qh2 b5+ Qb4 Qa5 Qb1 b6 Ne5 Qf6 Nf7 Qb5 Rb8 b7 Re8 b8Q Qb2 Q8b7 Rb8 Ka7 Nf5 Qc4 Bh3 Qe5+ Ke7 Qca6 Nh4 Qf5 Ng5 d6+ Kd8 d5 Qh8 Nd4 Rf7 Re2 Nh7 Qe5 Rf5 Ndf6 Qg3 d7 Ke7 d8R Qh2 Nb3 Qf2 Qd4 Bg8 d6+ Ke6 d7+ Qd6 Qdb4 Qf3 Rf8 Qf1 Rf7 Qf3 Nh2 Ke5 d8N Kf4 Re7 Be6 Nd4 Bb3 Qc5 Kg3 Nb5 Qff4 Nhg4 Kf3 Nd4+
Qb1Rb3/QrN3bR/P3nkn1/1qb1p3/6QB/1rB3Q1/1NNB2np/7K b - - 0 1 illegal: No possible last move
5R2/3BQ1B1/p1KN1bn1/1Q5b/QPN2rrp/2N1NRnk/7b/2qb2nR b - - 0 1 legal: proof: b4 b5 e4 d5 h4 f5 exf5 g5 c4 gxh4 cxd5 c5 a3 cxb4 Qe2 b3 Qd1 b4 axb4 Qb6 Ba6 Qd6 Bf1 Qd8 Ke2 Kd7 Kf3 e5 Ke4 h5 g4 h3 f4 h4 d4 h2 d6 b2 Kd5 a6 g5 e4 g6 e3 g7 e2 f6 e1B f5 Qb6 f7 Rh5 Bh3 Rh8 f6+ Kd8 d7 Bd6 Ne2 Qc7 Ra3 Nc6 Qa4 Bc3 Bh6 Ne5 Nd2 b1B Nc4 Bg6 f8R+ Be8 f7 Ke7 d8N Kf6 Nc6 Bg4 Ne7 Nf3 Nf5 Ng1 Nfe3 Kg6 Qb5 Kh5 Rb3 Bb2 Nc3 Bd1 Bd7 Qc8 Qa4 Bc7 Kc5 Ne7 g8Q Ng6 d5 Ba1 Qh7 Rg8 d6 Rb8 Ra3 Rb5+ Kc6 Rf5 Qh8 Rf4 Qf6 Bb2 Bg7 Ba1 Qe7 Bb2 Nf5 Kg4 Qe5 Ba1 Qeb5 Kh3 Nfe3+ Rg4 Ncd5 Bf6 Nc3 Rh8 Rg8 Rh5 f8Q Rf5 Qe7 Rff4 Rf8 Nh8 Rb3 Bh5 Be8 Ng6 d7 Nh8 d8N Ng6 Bd7 Bb8+ Kb6 Bbe5 Nf7 Bb8 Ng2 Qc5+ Kb7 Qe3 Ra3 Qc1 Nge3 Rf5 Ra2 Qa1 Rf2 Qc1 Rf3+ Bg3 Nfd6 Rff4 Rf2 Ne2 Rhf1 h1N Re1 Bh2 Rf3+ Nhg3 Rh1 Ng1 Kc6
1bqnQ1b1/Q5NP/b1R4R/BNK1prkB/B5Q1/rp2N3/1n5n/N6n b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 g5 a4 b5+ Kc5 e5+ d6 d3 h4 g4 f4 b3 a5 b4 a6 g3 h6 d2 h5 g2 h7 b2 h6 b3 a7 Bb7 Nh3 g1N Ra6 Nc6 Qg4 d1N Na3 b1B Nf2 Rc8 a8B Na7+ Rc6 Bd3 Be2 Bda6 Bd2 Ne3 Nd1 Qc7 Nb5 Nh3 Ba5 Ng2 Ne3 Bg7 d7+ Ke7 d8N Nf6 Ne6 Bf8 Ned4 Ne1 Ndc2 Nf2 Na1 Qd7 Rh3 Nh1 Rh4 Rg8 h8Q Rg5 h7 Qc7 Rh6 Nd3+ Kc4 Nb2+ Kc5 Qd7 Qg8 Rc7 Qg1 Rc8 Bh5 Ng4 Qc4 Qc7 Qd4 Nh2 Qg4 Rd8 Qa4 Qc8 Qa2 Rg6 Qa3 Rdd6 f6+ Kf7 f5 Rd3+ Kb6 Bd6 Qaa4 Bb8 Kc5 Rd2 Qad4 Rf2 Qa4 Kf8 f7 Kg7 f8N Kf7 Ne6 Kf6 Qge4 Rf3 Ng7+ Kg5 f6 Rf5 f7 Re6 f8Q Rd6 Rc7 Nc6 Qe8 Nd8 Rc6 Rd4 Qa3 Rb4 Qd4 Ra4 Qab4 Ra3 Qa4 Qe6 Qdd7 Bc8 Qa7 Qg8 Bb7 Be6 Bc8 Qh8 Bd7 Bg8 Nc7 Bb7 Ra6 Bf7 Qe6 Nc6 Rb6 Qd8 Qe8 Qc8 Qc4 Nd8 Ba4 Bfd5 Rbc6 Ba6 Nb5 Bg8 Qg4+
1B3b2/2K1b1pk/2B1N2r/3qQp1B/1r3bQR/4QBPN/Rr4nN/5nb1 b - - 0 1 legal: proof: c4 a5 f4 d5 cxd5 b5 a4 e5 axb5 exf4 b3 a4 g3 h5 b6 a3 Bb2 h4 Bc1 h3 Qc2 Bd7 Qe4+ Ne7 Qg2 Ba4 bxa4 hxg2 Bb2 Ng8 Bc1 Qg5 Kf2 Qe7 Ke1 Qd8 Kf2 f5 Kf3 Kf7 h4 Kg6 d4 c5 e4 a2 a5 c4 h5+ Kh7 h6 c3 d6 c2 e5 Nd7 a6 Nb8 a7 Qc7 b7 Qc4 e6 Be7 d5 Na6 b8Q Qd4 d7 Nc7 d8N Kg6 d6 Bh4 d7 Qd1+ Be2 Qd2 h7 Nh6 e7 Bf6 Ne6 Nd5 d8Q Ng4 Qe5 Nde3 Qd3 Rab8 a8B Rb4 Bc6 Nf1 Rh4 Nge3 Nh3 g1B Qdd4 Ng2 Qde3 Rhb8 h8Q Qd4 Bb2 c1B Nd2 R8b5 Bc3 Ba3 Bb2 Qd7 e8B+ Qf7 Bd4 Be7 Ba7 Rb2 Bb8 R5b4 Ne4 Bf8 Nf6 Be7 Ng4 Bf8 Rc1 a1B Rc2 Be7 Bd1 Bf8 Nh2 Be7 Ke2 f3+ Kd3 f2 Bcf3 Bf8 Bec6 Qd7+ Kc3 Qd5 Rd2 Be7 Qd8 Bf8 Bh5+ Kh7 Bdf3 Rb6 Qdg5 Bae7 Qg4 R6b4 Rd4 Nd2 Rc4 f1R Rc5 Rd1 Ra5 Nf1 Ra2 Rdd4 Qgg5 Rg4 Qgf4 Rg6 Qc4 Qb5 Kd4 Qb7 Kd5 Rh6 Qg4 Qa8 Bb7 Qa5+ Kc6 Qd5+ Kc7 R2b3 Qd6 Be5 Bc6 Bf4 Qde5 Rb1 Bce8 R1b2 Bc6
1N2N3/4QRp1/p3Nbb1/qr1Bn3/3KBQ1r/2R2P1n/k1R4b/1R1n1B1n b - - 0 1 illegal: No possible last move
8/pN1r1nr1/2B1K1p1/1RQN3B/4Pr2/bb1R3Q/1N3BNq/bknQ1r2 b - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 c4 d5 cxd5 e5 a4 exf4 g4 hxg4 axb5 Qf6 Ra4 Qg5 Ra1 Qd8 Kf2 Kd7 h4 f5 e4 f3 Kg3 f2 Kf4 g6 Ke5 g3 d4 g2 d6 f4 h5 f3 d5 Bh6 b6 Rh7 b7 Na6 b8Q Nc7 Na3 Bd2 h6 Bb4 Rb1 Ba6 Nc4 Ne7 Be2 f1R Nh3 g1B Be3 f2 Nf4 Ne8 Qb6 Qc7 Rh3 Ba3 Ng2 Rg7 h7 Rd8 h8Q Nf5 Qb4 Nd4 c6+ Kc8 Qb5 Nb3 Ke6 Nc1 Rb2 Qb8 d7+ Kc7 Qh4 Bh2 Bh5 Re1 Bd4 Rg1 Rd3 Nd6 Qh3 Be5 Be3 Bd4 Rb4 Ba1 Nb2 Bb7 Qc4 Nf7 Rb5 Re1 Qc3 Re2 Qcc2 f1R Bc5 Rf3 Bf2 Re1 Qc4 Rf1 Qc3 Rf8 d8N Rfg8 Qc5 Ba8 Nb7 Rd8 Na5 Bb7 Nac4 Rf5 Nce3 Rf3 Qf8 Ba6 Rc5 Kb6 d6 Bc4+ Nd5+ Ka6 d7 Qh2 c7 Rf4 Rb5 Ba2 Rb8 Ka5 c8B Bc4 Qe7 Ba2 Bb7 Kb5 Na4 Kc4 Bc6 Bb3 Rb5 Rb8 d8N Rb7 Ndc3 Rd7 Nb7 Bc2 Ra5 Kb3 Nd5+ Ka2 Rb5 Bb3 Nb2 Kb1 Qc5
B1RR4/QR6/bpNRN1Bk/n1n1Qqp1/3nB1rq/2P1K1br/4n3/5N2 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 f6 h6 g4 Nc6 g5 Ra4 f5 Ra8 fxg7 Nb8 g6 Ra4 Bf4 Ra8 Bg5 hxg5 Ke2 d5 h4 e5 a4 b3 h5 b2 h6 e4 f6 b6 f7+ Ke7 c6 Kf6 a5 d4 c7 d3+ Ke3 d2 c3 Bd6 f8N Be5 a6 Nc6 a7 Bg3 h7 Na5 Ne2 Ba6 c8R Ne7 g8B Kg7 Bf7 Nec6 Rh6 Nd4 Qa4 d1Q Nd2 b1N Be8 Qe1 Bg2 Qf6 Nf1 Qf5 Bf3 Nd2 Ne6+ Kf6 Bh1 N2f3 Qd7 Ng1 g7+ Ke5 Bg6 Kf6 Rd8 Rc8 a8B Rc4 g8R Qef2+ Kd2 Rb4 Qa7 e3+ Kc1 Q2f4 Bhe4 Qh4 Rg7 Ra4 Rb7 Rc4 Ra2 Rb4 Rd2 Rc4 Rc8 Ra4 N2f4 e2 Nd3 e1N Ne5 Nge2+ Kd1 Nd3 Nc6 Nc5 Rd3 Rg8 h8Q+ Rg7 Qe8 Rh7 Kd2 Rb4 Ke3 Ra4 Nc7 Kg7 Rd1 Nde6 Rdd8 N6d4 Bf7 Rb4 Rhd6 Rh5 Ne6+ Kh6 Qe7 Qhg4 R6d7 Rh3 Rd6 Qh4 Bg6 Nb5 Bg2 Rg4 Be4 Nbd4 Qf6 Qd5 Qf4 Qf5 Qe5
1r1k1nq1/1RqNR3/P1B1Qnp1/3R4/5nr1/Q2N4/2Bb1BpQ/K1nb1Q2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 d4 d5 cxd5 c5 g4 hxg4 dxc5 Qd6 Bb5+ Qd7 Bf1 Qd8 Kd2 b5 Kc2 e5 Kb2 g6 f4 e4 a4 g3 h4 e3 d6 e2 d7+ Ke7 h5 e1Q a5 b3 a6 g2 f6+ Ke6 f5+ Kf7 c6 b4 c7 Bd6 h6 Qe4 h7 Qe1 Qe2 Bb7 c8B Be7 Nh3 Be4 Be3 Bd6 Bb7 Qd1 Nf2 Bc2 Nd2 Qc7 d8R Bf4 Rd5 Ke8 Rb1 Nd7 f7+ Kd8 f6 Rb8 Nf3 Bh6 Bd4 Bd2 Ne5 Qc1+ Ka1 Bd1 Bc6 b2+ Ka2 Qc5 Nfd3 Qf8 Bf2 Qe8 f8Q b3+ Ka3 Rb4 f7 Rg4 Qd6 Nf6 Qe6 Rg8 h8Q Rf8 Qh2 Rh8 Rb5 Nf8 Nd7 Rg8 Rb7 Rh8 Ra1 b1N+ Kb2 Nc3 Ra5 Ncd5 Ka1 Nf4 Rd5 Rg8 Qe1 Rh8 Be2 Rg8 Qf1 b2+ Ka2 b1N Ka1 Nc3 Bf3 Be1 Be4 Nce2 Bf5 Bd2 Rg1 N8h7 f8Q Nc1 Qa3 Rh8 Qfe2 Rg8 Re1 Nf8 Qf1 Qf7 Nb2 Rh8 Bc2 Qg8 Re2 Rh3 Ree5 Rb3 Nd3 Rb6 Qed6 Rb2 Re7 Rb6 Qe6 Rb4 Ra7 Rb8 Rb7
3b1q2/k3Rpb1/1Q1n1q2/b4R2/R2B1B1p/1r1RB1nP/2b2QNK/2N2rN1 b - - 0 1 illegal: No possible last move
1Q1r1QBb/1p1B1p2/2N1b2r/4b2n/1q1qRP1Q/5K2/1B1k1N1b/2n1RB1N b - - 0 1 legal: proof: c4 e5 b4 a6 b5 axb5 d3 bxc4 d4 c3 dxe5 d5 e4 g5 exd5 Ne7 h4 Ng8 hxg5 Ba3 Be2 Be7 Bf1 Bf8 Ke2 Ke7 f4 c5 a4 h5 g4 h4 g6 h3 g5 c2 g7 h2 a5 c4 a6 c3 g6 Rh6 a7 Na6 d6+ Ke6 d7 Kf5 e6 Ke4 e7 Nb4 e8B Bc5 Nh3 Nd3 Qe1 Bg1 Qh4 Nf6 g8B Nh5 Bb2 c1B g7 c2 Nc3+ Kd4 Rb1 Qa5 d8N Be6 Bc6 Qb4 Nf2 Be3 Ra1 c1B Bd7 Bcd2 Kf3 Nc1 Nce4+ Bc3 Ng3 Bd2 Kg2 Ke3 Ra4 Be5 Nc6 Rd8 a8Q Bdc3 Qb8 Kd2 Kf3 Bcd4 Bh7 Bc3 g8Q Bh8 Qf8 Bcf6 Ng4 Be5 Bg8 Bb6 Rg1 h1Q+ Bg2 Be3 Re1 Qg1 Bf1 Bf2 Nh1 Bg3 Ngf2 Bh2 Ra3 Qg7 Re4 Qf6 Rae3 Qg7 Re1 Qg1 Ng4 Qgd4 Ngf2
Q2b4/p2Brn2/2qn3p/NN2k3/B7/2P1QRrb/1BRB2qq/1KQ1N2q b - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 e5 d4 cxd4 a4 b5 axb5 f6 f4 f5 exf5 exf4 Kd2 Ke7 g4 Kd6 b4 d3 b6 f3 c3 f2 b5 h6 b7 Nf6 b6 Qc7 g6 Ke5 g5 d5 g7 d4 g8Q Bb4 g6 Qc5 g7 Qc4 Bh3 f1Q Na3 Qd5 Ra2 Be7 Rc2 Be6 Nf3+ Kf4 Nb5 Nc6 b8Q+ Qd6 b7 Bc8 Ne1 Ne5 Qe6 Re8 g8B Qc6 Rg1 Bd7 Rg3 Bd8 Rf3+ Ke4 Bf7 Re7 Be8 Bc8 Bd7 Ne8 f6 Nd6 f7 Qg1 Bb2 Qh2+ Kc1 d2+ Kb1 d3 Qc1 d1Q f8B d2 Bg7 Qg2 Bf6 Qde2 Bg5 d1Q Bd2 Qh2 Bf1 Qeg2 Qh3 Nef7 Bc4 Ne8 Bb3 Ned6 Ba4 Ke5 Qg3+ Kd5 Qf2 Ke5 Qg1 Qde2 Qb6 Qee4 Qe3 Qgh1 Be8 Bg4 Bd7 Bh3 Qc8 Q1g2 b8N Qgh1 Na6 Rb8 Nc5 Rb6 Nb3 Ra6 Qd3 Qg4 Na5 Qgg2 Qa8 Rb6 Nd4 Rb4 Nb5 Rg4 Qb7 Rg8 Qa8 Rg3 Qe3+
B1k5/QRB3bK/R2qr2P/b3q1p1/p2rN3/3N1Rq1/2Q1Qb1r/1n2B2R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 cxd4 h5 g5 Be3 Ba6 Bc1 Bb7 g4 Bd5 Bd2 Bf7 Bc1 Bg6 hxg6 h5 Bf4 h4 Qd2 Na6 Be3 Nc7 Qd1 Ne6 Bf4 Ng7 Bc1 Nh5 gxh5 Rc8 Bd2 Rb8 Bc1 Ra8 Ke2 e5 b4 a5 f4 d5 c4 Kd7 b6 d3+ Ke3 d2 g7 h3 f5 h2 c5 Rh6 b5 Qb8 b7 Re6 h6 Nf6 g8R Raa6 b6 Qd8 b8B Ra8 b7 Ra7 Nf3 Bg7 Rg1 h1R Ne1 Rh2 Rh1 Qc7 Bg2 Raa6 Re8 Rad6 Nc3 a4 Rb1 Qa5 Qf3 d1Q Bd2 Qc2 Rc8 Qb2 Rc6 Qa3 Ra6 Kd8 c6 d4+ Kf2 e3+ Kg3 e4 c7+ Kd7 Qh5 Nd5 Kg4 e2 f6 d3 Kf5 e3 Kg6 Q5c5 Kh7 Qd4 f7 Qe5 f8R Qb3 Nd1 Nc3 Nf2 Rd5 Rb2 Nb1 Ba5 d2 c8Q+ Ke7 Qc2 Kd7 Bd6 d1Q b8Q Qa3 Bab4 Qdd3+ Be4 Rd4 Bc7 Qdc3 Bba5 Qad6 Qa7 Qca3 Rf4 Kc8 Ba8 Qd3+ Ne4 Qc3 Ng2 e1B Rb7 Bf2 Ne1 e2 Rf6 Qh3 Nd3 e1B Qhe2 Qhg3 Rf3 Bc3 Bab6 Bb4 Bc5 Ba5 Bb4 Qdd5 Bd2 Qdd6 Be1
q3NQ2/kb6/Q1n1P3/1p1N2nb/3q2Q1/nrBB1qRB/NN2pR2/4K2b b - - 0 1 illegal: No possible last move, all moves rejected
Q1r1R1bb/1K4b1/n1pQQrNr/q1qP3p/2B2B2/2R5/q1k1N2R/1N3N2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 b4 Ke7 e4 Kd6 Ke2 Ke5 Ke3 h5 d4+ Kd6 b6 f5 e5+ Ke7 b7 a5 b8Q c6 b5 g2 d6+ Ke6 b6 Kd5 d7 g3 g6 a4 b7 a3 e6 a2 e7 Qb6 e8Q Qa5 d8N Bg7 Nf7 Ne7 Nh6 Be6 Rh2 Bg8 Ne2 Kc4 Ng4 f4+ Ke4 g1B Ne3+ Kb4 Qe1+ Kb3 Qd6 Nd5 b8R+ Nb4 d5 f3 Qed8 Bc3 g7 g2 Q8f8 f2 Re8 Rc8 Bd2 Bf7 g8N Rh6 Ne7 Bg8 Ng6 Na6 Bc1 Bg7 Kf5 Bh7 Ke6 Bg8+ Kd7 Bh8 Nc4 Bg7 Bf4 Kc2 Ncd2 Bh8 Nec3 Bg7 Bc4 f1R Qee6 B1d4 Ne2 Rf2 Nf1 g1Q Qb8 Bh8 Qfd6 Bdg7 Qa8 Rf3 Nbc3 Qgc5 Rc1+ Kb2 Nb1 a1Q Rc3 Q1a2 Be3 Rf6 Bf4 Rb8 Rg3 Kc2 Rb3 Rb7+ Kc8 Rd7 Ra3 Rd8+ Kb7 Rc8 Rc3+
1RR1Q1R1/3bnqPq/B1NQ1n2/K6k/nr2R1pN/4p3/2BrB2r/3q2N1 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 d5 d4 cxd4 e3 d3 Nd2 d4 Nb1 d2+ Kf2 d3 g4 h6 b3 Bf5 g6 Rh7 g5 Bh3 Bb2 Be6 Be5 Bg7 Bf4 Bb2 g7 Bc8 g6 Rh8 Bg5 Bd4 exd4 hxg5 Ke3 e5 h4 f5 c4 a5 b6 g4 b7 a4 d5 a3 d6 e4 Kd4 e3 Kc3 f4 Kb4 a2 d7+ Ke7 h5 Kf6 c5 Kg5 c6 f3 c7 f2 h6 Ra5 h7 Rd5 Be2 Nf6 g8B f1R g7 Rd4+ Ka5 Kg6 b4 Rf3 b5 Rh3 b6 Re4 Bb3 Rh2 Bc2 Qf8 d8R Qf7 Rg8 Bd7 c8B Rf2 Rh5 Rb4 Rc5 Rh2 Rc4 Kh5 Re4 Na6 b8R Nc5 Ba6 Na4 b7 Rf2 Qc1 d1N Qa3 Ndc3 Nd2 Ncd5 Rc1 a1Q Ndf3 d2 Nh4 d1Q Qd3 Ne7 Qd6 Qad4 Ra8 Kh6 b8N Kh5 Nc6 Q4d3 Rb1 Rh2 Rgc8 Rd8 h8Q+ Nh7 Qe8 Nf6 Rd4 Qh7 Re4 Rc4 Rbb8 Rb4 Qe5+ Bf5 Qg3 Rd2 Qd6 Be6 Qed7 Bf5 Rg8 Be6 Qe8 Bf5 Rc8 Bd7 Rab8
1Nb4r/2RrPR1p/qq5N/1B2bq1n/5rQ1/1BRB1Np1/NbQ3K1/4k3 b - - 0 1 legal: proof: g4 e5 d4 exd4 a4 g5 h3 b5 axb5 f5 Bf4 c5 Be5 Nc6 gxf5 d3 Bd4 cxd4 h4 g4 Bh3 d2+ Kf1 Ne5 Kg2 Bg7 Ra5 Nf7 Ra1 Ng5 hxg5 Ke7 Kg3 Kf8 Bf1 Ke8 Kg2 Bf8 e4 Kf7 f4 d5 b4 a5 c4 g3 c5 a4 b6 d3 b5 a3 f6 Ke6 g6 a2 e5 Kf5 g7 Ke4 b7 Ke3 b8Q d4 f7 Qh4 b6 Qg4 e6 Qf5 c6 Nh6 g8B Qb5 e7 Be6 c7 Bc4 c8B Ra6 f5 Bg7 f8R Be6 f6 Qf5 b7 Ra4 f7 Be5 Qc2 d1Q Bd7 d2 Bd3 Ng4 Nf3 Nf6 Nc3 Nh5 B7b5 Bc8 Rc1 a1B Na2 Bb2 Qa7 Qe1 b8N d1Q Qd7 Qa5 Rf1 Qb6 Qe6 Bb7 Rc8 Qe2+ Rf2 Rb4 Rc7 Bc8 f8N Ra4 Nfd7 Rc4 Be4 d3 Nf6 d2 Bd3 d1R Bf7 Rb4 Ng8 Rf4 Nh6 Rd2 Qg6 Rd1 Qg4 Rd2 Be4 Rd7 Bb3 Qc4 Bd3 Qa4 Qb1 Qaa6 R1c3 Rd5 Nh2 Rd7 Rf3+ Kd2 Qc2+ Ke1 Rf2 Rc4 Rf4 Qf7 Rf6 Rf4 Rf5 Qfg6 Rf7 Qf5 Nf3+
3rBqN1/pQ2RqNP/KB1rpN1Q/2B3N1/3b1b2/2k4b/6Rr/2n1Q2q b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 g4 h5 Bc4 h4 Bd3 Nd7 Bf1 Ndf6 h3 Nh5 gxh5 g4 Qc2 gxh3 Qa4 Bf5 Qd1 Bc8 Ke2 Kf7 d4 Kf6 f4 c5 b4 e3 Kd3 h2 Kc4 h3 b6 e2 Kb5 e1Q b7 c4 b8Q c3 d6 c2 d5 Qd2 f5 Ke5 f6 Kd4 d7 Nh6 f7 Rg8 d6 Rg6 Qe1 Qe3 Nf3+ Kd5 Ba3 c1B Rg1 h1Q Qb7+ Ke6 Ka6 h2 b5 Kf6 b6 Qc5 Nbd2 Rg5 Ne4+ Ke6 Rg2 Bg7 f8Q Bf6 Bb5 Rf5 Nfg5+ Ke5 Qh8 Nf7 h6 Qd5 Bc5 Qg8 d8N Bf4 d7 Qf8 Nde6 Bg7 d8B Rf6 Be8 Rb8 Nc7 Rd6 Nce6 Bd7 Bc7 Rd8 h7 Bf6 Ng7 Bh3 Ra3 Qe6 Re3 Qd7 Qc6 Qf5 b7 Qg6 b8N e6 Rf3 Qf5 B7b6 Qg6 Qc7 Kd5 Qc6+ Kc4 Nd7 Bd4 Nef6 Ne5 Ng8 Qgf7 Qb7 Nd3 Ndf6 Nc1 Rf1 Qg1 Rf3 h1R Rd3 Rh2 Rb3 Ba1 Rd3 Qh1 Rdd2 Rc6 Rd7 Rd6 Re7 Kd3 Nf5 Kc4 Qg7 Bd4 Qh6 Kd3 Ng7 Kc4 Qeh4 Kc3 Qe1+
NR4nq/6P1/1qk1b1RQ/8/4pb2/pR1qNq1Q/BN1Rr1q1/K2n1QB1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 f4 d5 fxg5 f4 e4 dxe4 g6 Ra6 g5 Rd6 h3 Rd5 cxd5 Bxh3 Qc2 Bf5 Qd1 Bc8 b4 Kd7 d4 h5 Kd2 e5 Kc3 c5 Kb2 e3 g7 e4 b6 c4 g6 a4 b7 e2 b5 e1Q d6 h4 d5 f3 b6 h3 Be3 f2 Ne2 h2 Ra2 a3+ Ka1 c3 Nc1 c2 Nd3 c1Q Rd2 Nf6 g8R Ng4 Nb2 Qc2 Bc4 f1Q Nc3 Qg5 Bg1 Nh6 Ba2 Nc6 b8N+ Kd8 b7 Qff4 d7 Na7 Na6 Qd3 b8R Nb5 Nc7 Qg2 Na8 Qef2 Qf1 Qb6 Ncd1 Qff3 Ne3 Nc3 g7 Nd1 Rb7 Qbd4 Rb3 Rh7 Rh8 Qb6 Rg8 Ke7 d6+ Ke6 Rh8 Ng8 d8Q Rh6 d7 Kd6 Qg5 Kc6 d8Q Bd6 Qh5 Be6 Qh3 Bf4 Qdh4 Rh5 Rh6 Rc5 Rg6 Rc2 Rf2 Re2 Qh6 Re1 Rd2 Re2 Bf2 Qgg3 Rg1 h1Q Rg2 Qg5 Bg1 Qh4 R2g5 Qhg2 Rf5 Qhh5 Rf8 Qh4 Rb8 Qhh5 Qg5 Qh8 Qgh6
KBr5/R3q1rQ/N1N5/2QqnBp1/Pnk1BQ1Q/1p2b3/6r1/Nr4Rn b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g3 c5 g4 hxg4 Nc3 d5 Nb1 Bd7 d3 Bb5 cxd5 c4 Qa4 c3 Qd1 Bc4 dxc4 Qd6 Qa4+ Qd7 Qd1 Qd8 Ke2 Kd7 Kd3 Kd6 Kd4 b5 f4 g5 h4 c2 c5+ Kc7 f6 e6 c6 Kd6 f7 g3 f5 b3 f6 b4 h5 b2 c7 b3 c8B g2 h6 Na6 h7 Bh6 f8Q+ Ne7 f7 Qc7 Nh3 g1R Qg4 Rb8 Bg2 Ra8 Nf4 Qd8 Nd3 Nc7 Na3 b1R Be4 Ra7 Nc5 Rg2 Qh4 Na6 Rg1 Nb4 Na6 e5+ Kc4 Rb7 Bcf5 Bg7 Bf4 c1N Nc2 Ncd3 a3 Rc7+ Kb5 Nf2 Kb6 Nh1 Bh2 Rg8 h8Q Rc8+ Kb7 Bf6 Ra2 Rg7 Na1 Qa5 Q8h7 Qd8 Qe8 Ng6 Qa4 Be7 f8Q Qa5 Nb8 Kc5 d6 Kc4 d7 Bc5 Na6 Be3 Qe7 Qc5 d8N Qd4 Nc6 Qd5 Bf3+ e4 Bb8 Ne5 Ka8 Bd4 Qd6 e3 B3e4 e2 Qa5 e1Q Qb6 Ned3 Qdf4 Be3 Qa7 Ne5 Qd4+ Kb5 Qc5+ Ka4 Q4h5 Nf3 Nc7 Bf2 Bd3 Qe7 Qhh4 Ne5 Bde4 Be3 Rd2 Qc4 Rd7 Qcf7 Na6 Qd5 Qc3 Kb5 Ra7 Qed6 Qd4 Qe7 Qb6+ Kc4 a4 Bc5 Qa5 Be3 Qc5+
rB2B3/8/nr2nR2/1qpQp1R1/2B5/P3RK1n/qkrr1N1R/2N1QbN1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 g5 f4 gxf4 h4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 Kd7 d4 Kd6 a3 e5 f6 b5 f7 c5 f8Q+ Ne7 g7 h5 g8N h4 g6 h3 g7 b3 Nc3 b4 Qe1 f3 Bb5 h2 Na2 b2 Qf7 b1Q Nf6 b3 g8B b2 Be8 Qa5 Bh6 Ba6 Ng4 Qb5 Nc1 Qa2 Bf8 b1R+ Ke3 f2 Kf3 f1R+ Nf2 Rb4 Rb1 Rh6 Rb3 Rc4 Re3 Rc2 Qe6+ Kc7 d6+ Kb6 d5 Nf5 Qf7 Ng7 d7 Ne6 d8R Rd2 d6 Ka5 d7 Ka4 Bd6 Rg6 Nd3 Kb3 Nc1+ Kb2 Rc8 Rg2 d8R Rg6 Rc6 Rc2 Qa5 Rd1 Qe1 Rdd2 Qd7 Ng7 Bc4 Ne6 Bc7 Rh6 Qd5 Rg6 Nge2 Rh6 Rg1 h1N Rg5 Rg6 Ng1 Rh6 Ne4 Nf2 Rb6 Nh3 Nf2 Bc8 Rd7 Na6 Rh7 Bb7 Bb8 Bc6 Bh5 Be8 Rd6 Bg6 Rb6 Bd3 Be8 Bf1 Rh8 Rh7 Rc6 Rb7 Rhh5 Rb6 Rh6 Nhf4 Rh2 Nh3 Rd6 Nf8 Rh6 Ne6 Rf6
3rRn2/1qqN1k1R/1nNB3Q/1pQ2K2/2N5/P3B1r1/1rRpRb2/2n1Qn2 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Kf7 b4 axb4 f6 Ke6 g4 Ke5 f7 Ke6 Kd2 Kd5 Ke1+ Kc6 f4 h5 f5 b6 f6 Ba6 Be2 Bd3 Bf3+ Be4 Be2 Bf5 gxf5 Kb7 Bg4 hxg4 Na3 Kc7 Nb1 Kc6 Kd2 Kd5 Kd3 e5 h4 g5 h5 b5 a3 e4+ Kd2 b3 h6 g3 c6 e3+ Kd3 e2 h7 e1Q c7 b2 c8R g4 Rh2 g2 Nd2 b1N Ngf3 g1R Re2 g3 Ra2 g2 Nd4 Qc7 Rce8 Ne7 Nc4 Ng6 Nc6 Bc5 f8Q Bf2 f7 Nd2 f6 Nf1 Qh6 Nf8 Be3 d6 c3 Nbd7 Rac2 Rd8 Qd2 Rg8 h8R Nb6 Qd1 Rg3 Qd2 Nfd7 f8N Qc1 f7 Qb7 Qd1 Rh1 Qe1 g1N N4a5 Rh2 Nc4 Nf6 Nd7 Nh7 f8B Rhg2 Be7 Nf8 Qf4 Ke6 Ke4 Rh2 Qh6+ Kf7 Kf5 d5 Bd6 d4 Nd2 d3 c4 Rc8 c5 Rd8 Nc4 Rhg2 Nd4 Rh2 c6 Rhg2 c7 Rh2 Red2 Ne2 c8Q Rhg2 Nc6 Rh2 Rb2 Qc2 Qc7 Nc1 Re2 Qc3 Rbc2 Qa5 Qc8 Qaa7 N6a5 Qab8 Qc5 Q8c7 Nc6 Rhg2 Ra2 Bg1 Reb2 Rc2 Qcb4 Bf2 Qc5 Rc3 Rd2 Rb3 Rac2 Rb2 Re2 d2 Rh7+
1Q2Q2b/n2RK2B/1q1RQ2p/3NQB1P/4p1n1/1r5k/n1b1qq2/4BNnR b - - 0 1 legal: proof: b4 a5 g4 f5 e4 c5 a4 f4 bxc5 b5 axb5 d6 e5 dxe5 Bb2 Ra6 Bc1 Rf6 f3 Rf5 gxf5 e4 Bb2 exf3 Ba3 Na6 Bc1 Nb8 Kf2 Kf7 h4 Kf6 d4 e5 c4 g5 d5 h6 b6 a4 h5 g4 c6 Kg5 c7 a3 b7 a2 c5 Be6 c8B Rh7 d6 Qf6 c6 Rg7 d7 Bb4 d8R Bb3 c7 Nc6 b8Q Bc3 Bd3 Bc2 Bd2 Na7 Be1 Qb6+ Rd4 Rh7 Qe2 Nf6 Be6 Rg7 c8Q Rb7 Qc5 Bb2 Rd7 Bc3 Qce3 Bb2 Nc3 g3+ Kf1 Kg4 Rd1 a1N Nd5 g2+ Kf2 Nb3 Bg8 Rc7 Bh7 Nc1 Qc5 Na2 Qe8 Ng8 f6 Rb7 f7 Nf6 f8Q Bc3 Bdg6 e4 Qc4 Rb8 Qd6 Rb7 Qdb8 Bb2 Rd4 Ba1 Qcd6 Bc3 Qde5 Ba1 Ne2 g1N Ng3 Bb2 Nf1 Bc3 Nh2+ Kh3 Bf5+ Ng4+ Kf1 f2 Qc6 Bb2 Qce6 Ba1 Rd1 Bd4 Qec7 Bh8 Qce5 Qe3 Rd4 Rb3 Rd2 Qb6 Rd1 Nf3 Ke2 Ng1+ Kd2 f1Q Rd6 f3 Rd7 Rb2 Rd6 Nb4 Kc3 Qff2 Kc4 Na2 Rd7 Rb3 Rd4 Qd8 Kc5 Qa5+ Kd6 Qb6+ Ke7 Qe2 Rc4 f2 Rc6 f1Q Rcd6 Qff2 Nf1+
1K1b2qq/1N3q1n/1Q1B2p1/1rB2N2/1RNpk2q/N6b/Q2P1n2/1nRBQ3 b - - 0 1 legal: proof: h4 a5 a4 e5 b4 c5 bxc5 b5 axb5 Ra6 f4 exf4 h5 f6 h6 Re6 g3 Re7 Bg2 g6 Bf1 Rg7 hxg7 fxg3 c4 Ke7 e4 Ke6 Ke2 Ke5 Kf3 d5 b6 h5 c6 d4 c5 h4 b7 f5 c7 a4 c6 f4 Ne2 g2 Na3 g1Q Qb3 h3 Rb1 h2 Ng3 Qd5 Be2 Qe6 Bd1 Be7 Nf5 Nh6 g8Q Ng4 Qb6 Qe1 Rb4 Nd7 b8B Ndf6 Ba7 Bd7 c8N Qh4 c7 Nh7 Ncd6 Bd8 c8N Nf2 Nb7 Qe8 Qa2 Qg8 Ncd6 Bc8 Rg1 h1Q+ Rg2 Q1h2 Rg1 Be6 Ne7 Bh3 Nef5 Nf8 Bb8 Rh5 Re1 Nh7 Rf1 Kf6 e5+ Kg5 e6 Kf6 e7 Ke5 Nc2 a3 Nc4+ Kd5 e8Q Rg5 Qa1 a2 Qe1 Rh5 Qb1 a1N N2a3 Nc2 Bd6 Rg5 Qa2 Rh5 Nb5 Na3 Rh1 Nb1 Ba3 Ne4 Ra4 Nf2 Bac5 Qf6 Nba3 Qfh8 Rb4 Qg3+ Ke2 Qh4 Kf3 Ne4 Ke2 f3+ Kd3 f2 Kc2 f1Q Kb3 Bg4 Ka4 Bh3 Ka5 Nf2 Ka6 Rg5 Ka7 Rh5 Nce3+ Ke4 Kb8 Qfc4 Rf1 Qcf7 Nec4+ Kd5 Nfe3+ Ke4 Bc2+ Kf3 Qc1 Rd5 Nf5 Re5 Ba4 Re3 Rb2 Rb3 Re1 Rb5 Rb4 Kg4 Qd1+ Kg5 Qe2 Kf6 Rc1 Kg5 Qe1 Kg4 Nfe3+ Kf3 Bd1+ Ke4 Nf5+
5N2/1n4bq/3N1p2/4qN2/1R1R4/BRBp1Q1r/r2Q1PB1/1rnKNnkr b - - 0 1 legal: proof: b4 c5 bxc5 b5 cxb6 e5 a4 g5 h4 gxh4 c4 Ba6 d4 exd4 c5 Bb5 axb5 Qe7 Be3 Qf6 Bc1 Qd8 g4 Ke7 e4 Ke6 e5 Kd5 g5 Ke4 g6 h5 e6 d5 g7 a5 e7 f6 e8R+ Qe7 c6 d3 c7 h3 c8Q d2+ Ke2 h2 b7 h4 b6 d4 Qc7 h3 Bb2 a4 Qcc1 a3 Rd8 a2 Ba3 Nh6 g8N Qe5 Nf3 Nd7 b8N Bg7 b7 Nf5 Bg2 Nc5 Ne7 Ne3 Nf5 Nf1 Nd7 Rh4 b8B Nb7 Qb3 d1R Qd2 Ra7 Rg1 h1R Nf8 h2 Bc7 Ra4 Ba5 Rh3 Bc3 Rc1 Qbd1 d3+ Ke1 Rc2 Rd5 Rb4 Rb5 Rbb2 Rb3 Rc1 Bc5 Rcc2 Na3 Rc1 Rb1 a1N Nc4 Ra2 Rb4 Nb3 Rb2 Rca1 Rb1 Nc1 R1b3 Rb1 Be7 Qc5 Q1e2+ Qe3 Kd1 Kf4 Bd6+ Kg4 Bc5 Qe5 Ncd6+ Qd4 Ra4 Rg3 Ne1+ Rf3 B5b4 Qe5 Qee3 Rg3 Bc6 Kh3 Rg2 Rg1 Qf4 h1Q Ba3 Re3 Rg3+ Kh2 Rg4+ Reg3 Rab4 Qhe4 Ne7 Qh7 Nef5 Rh1 Bg2 Kg1 Qf3 Rgh3 Rgd4
N1r2n1Q/3B2BQ/1n3pk1/1N3Rq1/n1n2Rq1/1P3BR1/2p2Q2/Kbr1r2R b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 e4 a5 d4 h5 Kd2 c5 Kc3 g2 e5 a4 g6 a3 d6 a2 d7+ Kf8 d5 Kg7 d6 g3 e6 c4 b3 h4 Kb2 f6 e7 h3 e8B h2 b6 Ra5 b7 Ra8 Qe1 Ne7 Ne2 g1Q Bg2 Qa5 d8Q Bf5 d7 Nc8 Qc7 Nb6 d8Q+ N8d7 Qf2 Rc8 Nd2 Bb1 b8R Qg5 Bf3 g2 Nc3 Rh7 Nb5 c3+ Ka3 Qd1 Nc4 g1N Qb7 Kh6 g7 Ne2 g8R Nf8 Bd7 Re7 Ra8 Qg1 Ra4 Qg4 Rf1 h1R Ra5 Na4 Nb6 Nf4 Na8 Nd5 Rg7 Ndb6 Qe4 Nh7 Qh8 Kh5 Qb7 Re1 Bf4 Rc1 Bd6 Kh6 Bf8 Kh5 Rg8 Rg1 Bh6 Nf8 Bg7+ Kg6 Qc7 Rg2 Rh1 Rgg1 Rh4 Rge1 Qch2 Q4f5 Rf4 Qfg4 Qh2h4 Bd3 Rb1 a1N Ka2 Nc2 Qhh2 Ne3 Ka1 Rcd1 Rc1 Bb1 Qh2h4 c2 Q4h7+ Kf7 Na3 Nec4 Raf5 Rg1 Nb5 Rde1 Rd1 Rgf1 Rd2 Rc1 Rd1 Rh1 Rg1 Re1 Rg3 Rc1 Rh3 Rhe1 Rh1 Qg3 Qh5+ Qg6 Bh6 Qh3 Qhh4 Qh5 Rg3 Qg5 Bg7 Qhg4 Qh3 Kg6 Q3h7+
R2BQK1n/1Bnk4/4pp2/r3bR1Q/N3qQ2/3P2Nn/Q3qr1n/3N2Rq b - - 0 1 legal: proof: a4 b5 axb5 d5 h4 g5 c4 gxh4 cxd5 Bh3 d4 Bf5 Kd2 Bd3 Kc3 Qd6 f4 Qxf4 exd3 Qf2 Kb4 h5 Kc5 a5 g4 c6 b4 e6+ d6 a4 g5 a3 g6 a2 g7 h3 b6 h4 b7 h2 b5 h3 b6 Nh6 g8Q Kd7 Nc3 Qg3 d5 Ra6 Bg5 Bg7 Nge2 Qg4 Bd8 Ra4 Ng3 Be5 Rg1 h1Q Qg6 f6 Bg2 Qe4 Qdh5 h2 Raf1 a1N Rf5 Nf7 Nd1 Nc2 Bf3 Ne3 Bg2 Ke8 Bf3 Ng4 d7+ Kf8 d6 Ra2 Bc7 Rf2 d8N Ke8 d7+ Ke7 Rg2 Qf1 Rg1 h1N Bg2 Nh2 Bf3 Bc3 Bg2 Re8 Bf3 Nh8 Bg2 Kf8 Kd6 Na6 b8R c5 b7 c4 Ra8 Qfe2 b8Q Re7 Bb6 Nc7 Nb7+ Re8 d8Q Be5+ Kd7 c3 Nc5 c2 Na4 c1Q Ba5 Qb1 Qb2 Qa1 Qdb8 Qb1 Qa2 Qc1 Qb6 Rc8 Qe3 Rb8 Ra7 Rb5 Qf4 Qa1 Bb6 Ra5 Kd8 Qc1 Ra8 Qcc6 Kc8 Ke7 Bf3 Kd6 Kd8 Qc1 Bg2 Kc6 Ke7 Qb1 Kf8 Kd7 Bf3 Rg2 Qad2 Nd5 Rf1 Qc4 Bd8 Nc7 Ne3 Nf2 Qa2 Nh3 Bb7 Qe4 Rh1 Qbf1 Nd1 Qff3 Rf1 Rf2 Rg1 Qh1 Qe8+
6B1/3QrRKp/BNk3NR/bbn5/qqq2q2/Q6b/2nR1PpB/2R2N2 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 exd4 a4 f6 axb5 f5 h4 a5 Qb3 g5 Qd1 Ra6 Bd2 Rg6 Be3 fxg4 Bc1 g3 Be3 g4 Bc1 Rg5 hxg5 Bf5 Kd2 Be6 Ke1 Bc8 Kd2 Kd7 Kd3 c5 Ke4 c4 Ke5 a4 e4 a3 b4 g2 g6 d3 b6 d2 b5 g3 g7 a2 b7 c3 d6 c2 b6 Qc7 Nf3 g1Q Rh6 g2 Nh4 Qc6 Ng6 Qh1 Ba6 Qf1 Qf3 d1B Qa3 Be2 Bf4 c1Q Nd2 Bg4 Bh2 Qfc4 Nf1 Ne7 Kf6 Nf5 g8B Q6a4 e5 Bh3 e6+ Kc6 d7 Q1f4 d8R Bd7 e7 Qab4 e8Q Bd6 Qf7 Nd4+ Kg7 Bc7 Rc1 Nc2 Qf5 Be8 Rd2 Nd7 b8R Nc5 b7 Ba5 Qf7 Bed7 Rf8 Be8 Qe7 Bed7 Rf7 a1Q+ Qb2 Qaa4 b8N+ Kb6 Qa3 Bb5 Nd7+ Kc6 Rf5 Qe6 Nb6 Qec4 Bf7 Rc8 Bg8 Rc7 Rf7 Rd7 Qd8 Re7 Qd7+
bK2Q3/n1n1RP2/r2N2k1/6NR/B1B1B1Nr/q1n5/1pp1B2n/1QRqq3 b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 h4 Na6 g4 Nb8 f5 Ra5 Bb2 Ra7 Be5 Be6 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ra8 Ne2 Bd7 Ng1 Bc8 Ke2 b5 Kd3 c5 Ke4 h5 Ke5 h4 d4 c4 a4 c3 g7 Kf7 a5 f3 d6 h3 g6+ Ke8 f7+ Kd7 f8Q b3 a6 b2 a7 c2 f6 e6 d5 b4 Nc3 b1Q Be2 h2 Nh3 f2 Ne4 f1N Nhf2 b3 Ng5 b2 Ng4 Qa2 Qb1 Ne7 g8B Na6 g7 Qa3 Bf7 Nc7 g8B Bb7 Qe8+ Kc8 Bg6 Rh4 Bgd3 Bc6 Bb5 Bb7 Ba4 Nc6+ Kf4 e5+ Kf5 Na6 Ke6 e4 d7+ Kc7 Bf7 e3 Bg8 Nd4+ Ke5 Nb5 d6+ Kc6 Bgb3 Nc7 f7 Kc5 Bbc4 Be4 Rg1 h1N Ra2 Nh2 Rc1 Ng3 Ra1 Rb8 a8B Na7 Bad5 Bh1 Be4 Rb6 Re1 Ra6 Rc1 Qc8 d8R Qd7 Rb8 Qd8 d7 Bg2 Rb7 Bh1 B2f3 e2 Ra2 e1Q Bfe2 Nf5 Ra1 Ne3 Ra2 Nd1 Ra1 Qc8 d8N Qd7 Ra2 Nc3 Ra1 Na8 Ra2 Qd3 Re7 Qdd1 Ra1 Nc7 Nb7+ Kb6 Nd6 Kc5 Bh7 Ba8 Be4 Nc7b5 Ke6 Kd4 Kd7 Nc7 Ra2 Nc6 Kc8 Na7+ Kb8 Nc7b5 Nh6 Nc7 Be6 Ke5 B6c4+ Kf6 Ng4+ Kg7 Bac6 Qc5 Ra5 Qa3 Rf5 Kg6 Ba4 Qc5 Nh3 Qa3 Rh5+ Kg7 Bed5 Kg6 Ng5 Rb6+ Bb7 Ra6 Be4+
q2B1K2/1R1P1br1/k1bR2Nq/3Q3q/BnQbQ1N1/1R4p1/Bp5b/2r1B3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 c5 d4 h5 Na3 hxg4 Nb1 c4 Qa4+ Nd7 Qd1 Nc5 dxc5 Ra3 Kd2 Ra5 Ke1 Ra8 Ke2 Kd7 Ke3 Kc7 Kf4 g5+ Ke5 b5 f4 Kb7 h4 g3 a4 c3 f6 b3 h5 e6 h6 b4 f5 g4 f7 g2 f6 c2 d6 b2 c6+ Ka7 c7 b3 d7 g3 h7 Nh6 a5 Nf5 a6 Ba3 f8R Rg8 h8B Nh4 f7 Qe8 Kf6 e5 Bb5 e4 Bg5 c1Q Nc3 b1B Nf3 g1B Qd5 b2 Ba4 e3 Ne2 Bf2 Nf4 e2 Ne5 e1Q Ng4 Nf5 Rh6 Qf1 Ng6 Bb7 c8Q Bac5 Ra3 Bc6 Rb3 Qb5 Bd2 Bc2 Be1 Bg1 Qe4 Kb6 a7 Rg7 Rg8 Bh2 f8Q Nd4 Qd6 Bd3 Qdd5 Nc2 Rf8 Rb8 a8B Nb4 Bb7 Qd2 Ba6 Qa5 Bc4 Qb5 Qc7+ Ka6 Qcf4 Rb7 Qc7 Qa8 Rb8 Rb6 Rb7 Bd4+ Ke6 Bb1 Qc8 Ba2 Qc7 Rg8 Bf6 Rg7 Bd8 Qf4 Bd3 Qe3 Bb1 Qbe2 Qc8 Rb5 Qc7 Rc5 Qf4 Rc3 Qf1 Qb5 Qfc4 Rc1 Kd6 Rg8 Ke7 Rg7+ Kf8 Qd2 Ne7 Qg5 Rd6 Qh6 Qcc5 Qa5 Ng6 Qb5 Rf3 Bb3 Ba2 Bc4 Rb3 Qa5 Qdf5 Bf7 Qfd5 Qb5 Qc3 Qe2 Qcc2 Qf3 Qcc5 Qf5 Qc3 Qfh5 Qcc4+
1Kb3R1/2Np1n1B/Q7/N3Q1q1/qRN3nP/1QB1p1q1/n4bk1/3nQ1rB b - - 0 1 illegal: No possible last move
qN2Bk1r/BbPR4/2Q2qN1/bq2b1r1/1Q3N2/n1p1Kp2/6Q1/R3Rq1R b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 c4 e5 g4 exf4 gxh5 d5 axb5 Nd7 Ra2 dxc4 Ra1 c3 Nf3 c4 Ng1 Nc5 bxc5 Qd3 Ra3 Qd7 Ra1 Qd8 Kf2 a5 d4 g5 h4 f5 e4 g4 b6 f3 e5 a4 h6 f4 h5 a3 e6 c2 e7 a2 b7 Qc7 b8N Qa5 d5 Qd8 c6 Nf6 c7 Rh7 d6 Nd7 Nh3 Nb6 d7+ Kf7 e8R Bb7 Re1 Rh8 h7 Qf6 d8R Bd6 h6 Ra5 Nc3 Be5 Nd5 c3 Ne7 Nc4 Qd7 Na3 Be3 c1Q Ba7 Qb1 Qc6 Qb5 Rd7 Ke8 Bc4 Kf8 Bf7 g3+ Kg1 g2 Kf2 Rg8 Be8 Rg5 h8Q+ Rg8 Rab1 a1Q Qh7 Qa2+ Qc2 Rh8 h7 Qa1 Qe2 Qa2 Ra1 g1B+ Kf1 f2 Kg2 Qg7+ Kf3 f1Q+ Ke4 f3 Nf4 Bc5 Qg2 Bb4 Ke3 Qh6 Na6 Qf6 Nb8 Rg8 h8Q Qad5 Qh4 Rh8 Qe6 Qdc6 Bc5 Qca6 Qc6 Qa8 Ba7 Ra6 Nd3 Ba5 Qb4 Rb6 Nf4 Ra6 Qcc4 Rd6 Qc6 Rd2 Qh3 Rg2 Qh2 Rg3 Qg2 Rg5 Neg6+
2BRRQ2/1p1R2qB/BrbQ4/Qb3Kb1/k1N5/4pRr1/P1N2b1q/n2r4 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Ra7 h4 Be6 h5 Ra8 Bb2 Bc8 Be5 Nc6 Bf4 gxf4 g5 Ne5 Bc4 Qd7 Bf1 Ng6 hxg6 Qd8 Ke2 Kd7 Kd3 c5 Ke4 h5 d4 e5 f7 h4 f6 h3 d6 Kc6 d7 c4 g7 Kb5 d5 b3 g6 b2 d6 h2 Qh5 f3 Na3+ Ka4 Qh6 b1R Be2 f2 Bh5 f1B Be2 c3 Nc2 Rd1 Kf5 e4 Ba6 Qc7 Nf3 Bb5 Rf1 h1Q Ne5 Qh2 Nc4 Ra7 Qg5 Rh3 Rf3 Rg3 Qh5 Be7 f8Q e3 f7 Bg5 Rb1 Nf6 g8B Ne4 g7 Nd2 Bh7 Nb3 g8B Na1 Qd8 Bc6 f8Q Ra8 Be6 Bb5 N2a3 c2 Qg6 c1B Nc2 Ba3 Rb3 Bb4 Rd3 Be1 Qh5 Rg4 Qdf6 Beh4 d8R Bf2 d7 Rg3 Re8 Bc6 d8R Qg7 Qd4 B8d7 Qdd6 Bb5 Rd4 Bdc6 Bd7 Rc8 Rd2 Rc7 Bc8 Rd7 Qb8 Re7 R2d7 Re6 Qe5 Bd5 Qg6 Rb6 Qgd6 Bdc6 Qed5 Bf4 Qd2 Bg5 Qa5#
1R3n2/1Q2bR2/Q1q1NBk1/1rB2N1B/3NpQr1/1bb3bK/1b2pb1P/6B1 b - - 0 1 illegal: No possible last move
2B1B1Rr/4B1n1/3b1NQ1/pQ1nQRb1/5nnn/2PN2k1/1r2R2p/b3B2K b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 d4 cxd4 f5 b5 axb5 Bb7 h3 Bd5 f6 Be6 Kd2 Bf5 gxf5 g4 Ke2 g3 Ke1 Qc7 Nc3 Qf4 Nb1 Qg4 hxg4 Bg7 Ke2 Bh6 Ke1 Bf8 b4 Kf7 g5 e5 b6 a5 b5 h5 b7 d5 b6 h4 Rh2 d3 Rg2 h3 Rd2 e3 Ra4 h2 Rb4 d4 Rf2 e4 Bd2 e2 Bh3 g2 Nf3 g1B Nc3 Na6 b8Q Bd6 b7 Ne7 Qc1 Nc7 Qb1 Ncd5 Rb2 Nf4 Nd5 Ra6 Qc7 Rb6 b8Q Rb3 Rf1 Be3 Qb5 Rb4 Ra2 Rb2 Bc3 Bd2+ Kf2 e1N Qcc5 Neg2 Ne1 Nh4 g6+ Kf8 f7 Kg7 f8R Kh6 f6 Kh5 f7 e3+ Kg3 e2 g7 Nef5+ Kf2 Bc1 g8B d2 Nd3 Ng7 Bc8 d1N+ Kg3 Ne3 Be1 Kg5 Nf6+ Ned5 Bh7 Be3 Rg8 Bc1 f8B Be3 Nf2 d3 Bg6 d2 Be8 d1N Nd3 Nf2 Be7 Ng4 Rf2 Nf5+ Kf3 Kh4 Qd4 Kh3 Qe5 Bc1 Bd2 e1B c3 Kh4 Rf1 Kh3 Qc2 Bh4 Be1 Bg5 Qb1 Rb3 Rc2 Bb2 Re2 Ba1 Qc2 Rb2 Rff2 Nfe6 Qb1 Kh4 Kg2 Nef4+ Kh1 Kh3 Nb4 Nh4 Qg6 Nd3 Rf5 N3f4 Bd2 Kg3 Nd3 Bb4 Qc6 Ba3 Qb5 Bd6 Be1+
BRnRN3/3bP1b1/1B1b1r1p/4bN1p/1B6/1n1QKQR1/3Qb2Q/2rk2n1 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 h5 gxh5 cxd5 Bd6 Qb3 Bb4 Qd1 Bf8 Kf2 Ke7 d4 Kf6 e4 Kg5 g4 c5 b4 f5 b6 a5 d6 c4 b5 a4 d5 a3 b7 a2 d7 h6 b6 c3 d6 c2 e5 Ra7 e6 Ra6 Nd2 f3 Rh3 Kf4 g5 Kg4 g6 f4 g7 Ne7 g8Q+ Bg7 Ba3 c1B Ne4 Nbc6 b8R Nd4 b7 Ne2 Bb4 Ba3 Bg2 Rb6 Rc1 a1B Qf1 Bc3 Rd1 Be5 Rd5 Rc6 Qd1 Qa5 d8B Bd7 Bb6 Nc8 e7 Rc1 Rd4 Rh7 Qa2 Rh8 Bh1 Rf8 Qdb3 Rf6 Qf7 Bf5 d7 Be6 d8Q Bd7 Rd1 Qd5 Nd6 Qd2 Bc3 Bb4 Ne8 Bbd6 Bb4 Rc6 Kf1 f2 Nf3 Ng1 Nd4 Rc4 Kg2 Rc1 Nf5 f1N+ Bf2 Ne2 Bb6 f3+ Kf2 Kf4 Bg2 Ke4 Rg3 Kd3 Qa6+ Kc2 Qd5 Qc3 Qaa2+ Qb2 Bh1 Nd2 Ke3 f2 Qf3 f1B Bg2 Ng1 Bh1 Ba4 Qd7 Nb3 Qb5 Bc7 Rd8 Be2 Qa6 Bd7 Bg2 Rb1 Qd3+ Kc1 Ra8 Bcd6 b8Q Nd2 Qc7+ Kd1 Rb8 Rc1 Qf2 Re6 Ba8 Rf6 Qh2 Qc3 Qc6 Qc2 Qf3 Qb2 Qde4 Nb3 Qd3+ Qd2+ Qaxd2+
B5bb/5nb1/Nr1Q2r1/KppbRN1Q/1r1q1PN1/6k1/2R1Q1B1/2Br3Q b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 f4 exf4 axb4 Na3 g6 Nb1 g5 f3 g4 h4 gxf3 g4 Nc6 h5 Ne5 g5 Ng6 hxg6 Bg7 Ne2 Bh6 Ng1 Bf8 d4 Kd7 Kd2 Kd6 a4 h5 g7 b5 a5 e5 a6 h4 g6 e4 a7 b3 Kc3 f2 Kb4 e3 Nd2 h3 Ne2 c6 Ra2 b2 Bg2 f1R Ne4+ Kc7+ d6+ Kd7 d5 h2 Nd4 e2 Nf5 Rb8 a8B Nh6 g8Q Bg7 Qh7 Nf7 Qh5 Rb6 Ka5 b1R Rc2 e1B+ Qd2 Bf2 Qde2 Rd1 Re1 Bfd4 Nf2 Rg8 Ng4 Bh8 g7 h1B Qe5 c5 Qe2 Rf8 g8Q Bdg7 Qgh7 Rg8 Q7h6 Qf6 Qh7 Qd4 Q7h6 Kd8 d7 Rb4 Qh7 Kc7 d8N Be6 d6+ Kd7 Q7h6 Ba2 Ne6 Bc4 Nc7 Bb3 Bgb7 Bhd5 Na6 Bbc4 Qh1 Ba2 Q6h5 Bac4 Nge3 Ke6 d7 Ba2 Q5f3 Kf6 d8Q+ Kg6 Ng4 Bac4 Qhf1 Kh5 Qd6 Bb3 Qef2 Ba2 Re5 Bac4 Q2e2 Bb3 Nfh6+ Kh4 Q3h1+ Kg3 Qh5 Re8 Qfh1 Re6 Bc6 Rg6 Bcb7 Ng5 Bc6 Bg8 Be4 Bbd5 Bg2 Nf7 Nf5#
Nbb3nn/B1r4k/Q2N1nBP/7b/qNQ3R1/3pbQ2/1pR2n2/R4NK1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b5 a3 Ra7 a4 Rb7 Na3 axb4 Nb1 b3 Nd2 b4 Nb1 Rb5 axb5 Bb7 Na3 Ba6 Nb1 Bc8 h4 Kf7 f4 g5 Kf2 Kg7 c4 d5 c5 e5 c6 b2 h6+ Kh7 f6 e4 f5 g4 b6 d3 b7 d4 h5 b3 c7 d2 f7 Ne7 f6 Qd6 Na3 b1B Rh2 b2 Nc4 Qa3 Qb3 Bc2 Nf3 d1N+ Kg1 g3 Nb6 e3 Bd3+ Ng6 Nd2 g2 Nf1 e2 Be3 e1N Qc4 Qb3 Na8 Nc6 b8N Qa4 Na6 Ne7 Nb4 Ng8 Bf2 Be7 f8R Bd6 f7 Ne3 Rh4 Bd1 Rg4 Bg3 Rd8 Be2 f8Q Nd5 Qf3 Ndf6 Re8 Bd1 Re2 Bd6 Be4 Nd3 Rc2 Be5 Be3 Nf2 Qa6 d3 Ba7 Bb7 c8N Bb8 Nd6 Bc8 Kh2 g1B+ Kg2 Bh2 Bf5 Bf4 Kg1 Be3 Qc4 Ne7 Qa6 Rd8 Qc4 Rd7 Qa6 Kh8 h7 Neg8 Qc4 Kg7 Be4 Rc7 h8Q+ Kf8 Qh7 Nh8 Bg6 Be2 Qd7 Bd1 Qdb5 Kg7 Qa6 Be2 Be8+ Kh7 h6 Bd1 Qfc6 Bf3 Qcb7 Be4 Bf7 Bg6 Qf3 Bh5 Bg6+
Q3N3/4N3/1Rr1B1kN/q1q5/pb3Bn1/2q2Rqr/BPQBK2p/1R1r3q b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Bg2 f4 Bf1 Bb7 Na3 Be4 Nb1 Bf5 gxf5 Nc6 h4 g4 Rh3 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Qa5+ Nc3 Qc7 Nb1 Qd8 e4 Kf7 c4 d5 c5 a5 e5 h5 g6+ Kg7 f6+ Kh6 b6 h4 g7 g3 c6 h3 b7 a4 b8B f2+ Ke2 g2 e6 Bb4 e7 Kg6 e8N Nh6 g8B Qa5 f7 Ra6 f8R Ng4 c7 Rc6 Nf3 g1Q c8Q Qg3 Bd2 h2 Bh3 f1R Rg1 Rh7 Qc1 Rd1 Ng5 Qc3 Nf7 d3+ Kf3 d4 Na3 Rh4 Nh6 Qac5 Qc2 Rh5 Ke4 f3 Bbf4 f2 Qa8 f1Q Nb5 Qf2 Rb1 Qg3 Nbd6 Qa5 Be6 Qcc5 Bg2 Rh3 Ndf5 Qc3 Rf1 Qac5 Rf3 Qa5 Be1 d2 Bf1 Qac5 Bfc4 d3 Ba2 Rc1 Be5 d1Q Bd2 Qh1 Bef4 Rd1 Rf7 Qa5 Rb7 Qcc5 Rb6 Qhe1+ Bde3 d2 Kd3 Qh1 Ke2 Qc3 Bf2 Qhg1 Be1 Qgc5 Neg7 Rc1 Ne8 d1Q+ Kf1 Qdd5 Ke2 Rd1 Bed2 Qe4+ Re3 Qh1 Rd3 Ba3 Rf3 Bb4 Ne7+
N2b1nB1/1R1q4/1nQ1npQ1/1PpN3k/1r4nn/4BR2/1QKNNq2/q1B5 b - - 0 1 legal: proof: f4 b5 c4 d5 a4 dxc4 f5 f6 g4 e6 axb5 exf5 g5 f4 g6 Qd6 Ra6 Qe7 Ra1 Qd8 h3 a5 Qc2 Bg4 Qc3 Kd7 Ra4 Ra6 Qb3 Re6 Ra3 Re7 Ra1 Rf7 gxf7 g5 Qc2 Bf3 Qd1 g4 Bg2 g3 Bf1 Bg4 hxg4 Ke6 Na3 Kd6 Nb1 Kd7 b4 Ke7 d4 c5 Kd2 h5 e4 a4 b6 h4 g5 f3 e5 a3 e6 g2 g6 c3+ Kc2 a2 g7 f2 d5 h3 b7 h2 Qg4 Rh4 Ne2 g1N Qg6 Nd7 b8Q Nf3 Nd2 Nb6 Rb1 a1Q Qc8 Qe8 Qc6 Qd7 b5 Re4 Rb3 Rb4 Ra3 Nh4 d6+ Kd8 Rg1 Be7 f8B h1N Bg2 f1Q Bd5 Qf2 Re1 Nh6 g8N Ng4 Bh6 Ng3 Be3 Ngf5 Rf1 Ng7 Ra7 Nh6 Rb7 Ng4 Qh6 Ke8 Qg6+ Kf8 Bc4 Bd8 Ne7 Nc8 Ba2 Nb6 Nd5 Kg8 e7 Kh8 e8N Ne6 Qf5 Nf8 Nec7 Kg7 Na8 Kf7 Qe5 Kg6 Qd4 Kh5 Bc4 Qe6 d7 Qe8 Kd3 c2 Qb2 Bc7 d8Q Qd7 Qe7 Bd8 Qf7+ Nhg6 Qg8 Qg1 Rf3 Nh4 Kc3 Nh7 Ne7 Qf2 Qg7 Nf8 Bg8 Qe6 Nd5 Qf7 Nb1 Qd7 Bcd2 c1N Kc2 Nd3 Bc1 Nf4 Nd2 N4e6 Qg6+
1b1R1NRB/4k1b1/qRbNQ1n1/n5P1/8/b1N1q1pQ/pBKN2q1/4bB2 b - - 0 1 legal: proof: g4 h5 a4 d5 e4 dxe4 f4 b5 h4 a5 c4 bxc4 g5 f6 f5 Ra7 Rh3 Rb7 Rh1 Rb5 gxf6 g5 axb5 g4 Ke2 Rh6 Kf2 Rg6 Ke1 Rg5 hxg5 Qd5 Bg2 Qd3 Bf1 Qd8 b4 c5 d4 e5 Kd2 e3+ Kc2 c3 b6 a4 f7+ Ke7 b7 a3 d5 c4 b5 h4 b6 g3 Qf3 e2 Bd2 e1B Bc1 a2 Nd2 e4 Qe3 h3 Ne2 h2 Bb2 Qd6 Rb1 Bg7 f8R Nc6 b8B Na5 b7 Qa6 Be5 Bd7 b8Q Bc6 Rd8 Bf2 Qeb6 e3 Bd4 Be1 Qf4 Bf2 Qg4 Be1 Qh3 Bf2 Kc1 c2 Nc3 e2 Qb3 e1B d6+ Kf7 f6 Ne7 d7 Ng6 Be5 Ba7 Rg8 Bb8 Bd4 Nf8 d8N+ Ke8 f7+ Ke7 Rg1 h1Q Nb7 Qg2 Nd6 Ng6 f8N Nb7 Ba1 Na5 Kb2 c1B+ Kc2 Ba3 Bb2 Bh6 Bh8 Bg7 Ncb5 c3 Qbe6+ Kd8 Kd3 c2 Rh1 Qc8 Nc3 c1Q Rg1 Qd1 Rh1 Qdf3+ Kc2 Qa6 Rh2 Qe3 Rd1 Qd5 Rf2 Qh1 Rf5 Qh2 Rb5 Qg2 Rb6 Qef3 Ne8 Qg1 Ndb1+ Qd5 Rd3 Qdd4 Nd2 Qg2 Qef5 Ke7 Qfg4 Qe5 Rd8 Qc5 Nd6 Qe3 Qe6+
Q2BQQb1/1p4bN/3rP1KN/2r2Rb1/4bp1b/1RNQ3R/2qk1b2/3B3b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 d5 dxc5 h5 Bh6 hxg4 Be3 Bd7 Bc1 Bc8 Bd3 e5 Bf1 d4 f3 Ne7 f4 Nd5 exd5 e4 Ke2 Nd7 Ke1 Ne5 fxe5 Kd7 Bd3 Ke7 Bf1 Ke8 Kf2 Kd7 Kg3 f5 Kf4 b3 h4 g3 c4 g2 a4 g6 d6 Kc6 e6 d3 h5 e3 a5 e2 a6 e1B d7 b2 h6 d2 h7 Bh4 a7 Bg7 Nh3 g1B Nc3 b1B Ra5 Bgf2 Be2 Be4 Ng5 Qe8 d8Q Bd7 Ra3 Rc8 a8Q Qf7 Bf3 Be8 Rh3 Rg8 Qf1 d1B h8N Qf8 Qfd3 Bf7 Bh5 Bdf3 Nh7 Bh1 Bd1 Qe8 Qf6 g5+ Ke5 g4 Rb3 g3 Bg5 g2 Kf4 Bh5 Nf7 g1B Nh6 Qg6 Qf8 Rd8 Be7 Rd6 Bd8 Qg2 Rb2 Bf7 Rb3 Bhg3+ Kg5 Rh8 Qd4 Bg8 Qd3 Bh4+ Kh5 Bg5 Kg6 Bfh4 Be7 Kc7 c6 Qc2 c5 B1d4 Qae8 Bdf2 Bd8+ Kb8 c7+ Ka7 Qg3 Ka6 c6 Ka5 Qd3 f4+ Nf5 Ba7 c8R+ Bb6 c7 Bbf2 Nf6 Rh5 Nh7 Bef3 Nh6 Bfg2 Ra3+ Kb4 Ra5 Be4+ Rf5 Kb3 Ra8 Kb2 c8Q Kc1 Ra5 Bh8 Ra3 Bg7 Qa6 Kd2 Rb3 Qd3 Qa3 Qc2 Qca8 Bb6 Q3a6 Bbf2 Qf1 Be7 Qc4 Bd5 Qe4 Bc6 Rf6 Rc5 Rf5 Beg5 Qc4 Bce4 Qd3+
k1BBbr1B/Q2qr3/bRN2R1K/2QpP1pb/1Q6/1N1q2b1/8/2r2qBN b - - 0 1 legal: proof: d4 b5 h4 e5 g4 c5 a4 cxd4 axb5 g5 h5 e4 Ra4 Ne7 Ra1 f5 f3 Ng6 hxg6 Nc6 Rh2 Ne7 Rh6 f4 Rh1 Nf5 gxf5 exf3 Kf2 d5 e4 Kd7 c4 Kc7 b4 Kb7 g7 h5 g8Q a5 c5 h4 e5 a4 f6 h3 b6 a3 f7 a2 c6+ Kb8 c7+ Kb7 b5 d3 Qb3 d2 Ne2 d1R Ng3 h2 Be3 Rd4 Qh7 Qd6 Nd2 Bd7 Rb1 a1Q Bh3 Rc8 Qb4 Qc6 Nb3 Qe6 Rhf1 Be8 Nh1 Rb8 c8Q+ Ka8 Qcc5 Qe7 Bc8 Qd7 Qhc2 Bd6 f8B Rh7 Bg7 Qa3 Bh8 Rc4 Qc7 Bc5 b7+ Ka7 Qcc3 Re7 Qd4 Rc1 b6+ Ka6 Qdc3 Bd4 Q3c5 Ra8 Ng3 h1B Rb2 Bg2 Nh1 Bh3 Rb1 Bg4 Rb2 Bgh5 Rb1 Qc6 b8B+ Qb7 Bh3 Qc6 b7 Qd7 Ba7 Rd8 Bb6 Rb8 Na1 Qd3 Nb3 Qd6 Bc8 Qd7 Kg1 f2+ Kg2 f3+ Kg3 Qd6 Re1 f1Q Bg1 f2+ Re3 Bb2 Rf3 Bc3 Ba5 Be1 Bb6 Bhf7 Kg4 Qc6 Rf6 Qcb5 Rg6 Qd7+ Kh5 Ra8 Kh6 Rb8 Rf6 Bh5 Q5c6 Ra8 Ba5+ Ka7 Qcb5 Bd2 Q5c4 Bf4 Q7c5+ Kb8 Bd8 Bg3 Qcc3 Ra5 Qc7+ Ka7 b8N+ Ka8 Qbc5 Ra4 Nc6 Rf4 Q3b4 Rf5 Rg6 Rf8 Rd6 Qfd1 Rf6 f1B Rb2 Bfe2 Rb1 Qf1 Qbc3 Q3f5 Nbd4 Bd1 Rb6 Bde2 Nb3 Ba6 Q3b4 Q5d3 Qa7+
1R4B1/Q2p1QQ1/1PN2b2/NNrB1n1K/4n3/1nQ1p1Bn/1R4k1/1nn1r1r1 b - - 0 1 illegal: No possible last move, all moves rejected
5b2/Q7/N1r2r2/1K1BqpQR/1N1B1bb1/p1Qrk1r1/BQ1R1NP1/2q2b2 b - - 0 1 illegal: No possible last move, all moves rejected
QbB2K2/bR2p3/p1b2R1R/QBB4q/3RQ3/2rPN1k1/qN5q/1br2q2 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 b5 c4 bxc4 f4 g5 a3 g4 f6 Nh6 f5 Nf7 a4 Ng5 hxg5 Nc6 Qf3 Nd4 Qd1 Nb5 axb5 Bb7 Rh4 Ba6 Rh1 Bc8 Kf2 Kd7 Ke3 Kd6 Kf4 c5 b4 h5 f7 c3 b6 a6 b5 g3 b7 g2 b8Q+ Qc7 b6 c4 g6 e3 Kg5 Ke5 b7 c2 g7 h4 Kg6 Kf4 g8B e2 f6 e1B Nc3 h3 Ba3 c1Q Qh5 h2 Nd1 c3 Ne3 c2 Bc5 Bf2 Ra4+ Kg3 Rd4 Bg7 f8Q Qd6 Kf7 Qa3 Nf3 g1Q Ne1 c1Q Nd3 Bf5 Nb2 Qe5 Bb5 Bb1 d3 Qcf1 Ke8 Qgg2 Be6 Qa2 f7 Rh6 Bc8 Rc6 Qh7 Bh8 Qa7 Qh5 b8R Be5 Rb7 Bb8 Qb6 Bg1 Qa5 Qge2 Bb6 Rc3 Bc5 Ra7 Qe4 Qeg2 Rb6 Rc7 Rb7 Rc1 Qh8 Qge2 Kf8 Rc6 Bb6 R6c3 Bc5 Bf2 Kg7 Bg1 f8R Qeg2 Rf6 Bf2 Rg1 h1B Kf8 Qg5 Ba3 Rb3 Bcd7 Bc7 Nd5 Qh6+ Ke8 Bb6 Qe3+ Kh2 Rb4 Bg3 Rd4 Bgc7 Bc5 Rbc3 Bh3 Qgf3 Rgg6 Ba7 Qf4+ Qg3 Ne3 Qh5 Bhd7 Bc6 Qe4 Rb3 Kf7 Rbc3+ Be6 Qd6 Qa8 Bcb8 Kf8 Qg3 Bf5 Qgh3 Bg4 Kg3 Rh6 Qh2 Bc8
r2q1nKR/qp1p1r2/N1n1BQ1R/q1k5/3nn3/1Rq1Q1B1/3R1P1N/2Q4N b - - 0 1 illegal: No proof kernel forced: wxLB
1N3Qb1/1bNQRQK1/2RB3r/3B2n1/p1pnB3/3rPr1k/1q1p2b1/1N5N b - - 0 1 legal: proof: g4 e5 f4 exf4 a4 b5 axb5 h5 gxh5 c5 d4 Na6 Kd2 Nb4 Bg2 c4 Bf1 Bc5 dxc5 Nxc2 Kc3 Ke7 h4 Ke6 b4 Kf5 h6 Kg4 c6 d5 h5 a5 h7 g5 h6 f5 e3+ f3 b6 f4 c7 Ne1 Kd4 Qd6 b7 Ne7 b8N Qb6+ Ke5 d4 b5 d3 Nh3 Nf5 Ba3 Nd4 Na6 Bb7 Bg2 Raf8 c8B+ Kh4 Be6 f2 Be7 f1B Nc7 f3 Bd5 f2 Bge4 Rf3 Bd6 g4 Rh2 Rd8 h8Q g3 h7 g2 Qf8 g1R Qf7 Rg6 h8Q+ Rh6 Qhf8 Bg2 Ra2 f1B Nf2+ Bh3 Nh1 Bg2 Rd2 a4 Rb2 Qc5 b6 Qa3 Rb5 Qb3 Rc5 Qb2 Rc6 d2 Qe2 Kg5 Qd3 Be6 Rh3 Kg4 Rg3+ Kh4 Rg7 Kh3 Rh7 Bbc8 b7 Rd7 b8N Bb7 Qg6 Bg8 Re7 Ne6+ Qd4 Ng5 Qgf7 Nc2 Qg6 Rg3 Kf6 Rf3+ Kg7 Rd8 Qge8 Rd7 Qdf6 Nd4 Q6f7 Ba8 Be5 Nb3 Qc8 Bb7 Be6+ Rf5 Qce8 Rd3 B6d5 Nd4 Bd6 Rf3 Qd7+
N2r2n1/N1rkn1B1/R1bR2P1/p2R1RqB/pB1n1Q2/Q2bKp1N/8/5r2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 bxa4 c4 e5 cxd5 exf4 Kf2 h5 b4 f5 g4 a6 d4 f3 e4 f4 g6 c6 d6 h4 b5 h3 g5 h2 e5 Bg7 d7+ Ke7 d5 Rh3 d6+ Ke6 b6 Bh6 b7 Qe7 d8R Nf6 g7 Ne8 g8R Qh7 d7 Qh8 g6 Nf6 Qd3 Bg7 Bd2 Rh7 Rgf8 Ng8 Rf5 Bf8 Qa3 Bd6 Nc3 Qf6 Be2 Qg5 Nh3 Rf7 Rhd1 h1B Nb5 a5 Na7 c5 Bb4 c4 Rd5 c3 Re1 Nc6 b8Q Ke7 e6 c2 Rf8 Rh7 R8f6 c1N d8B+ Ke8 e7 Ba6 Re6 Kd7 e8N Nce7 Nc7 Nb3 Rc1 Bg2 Rc6 Bd3 Ra6 Nd4 Bd1 Nc8 Bf6 Nce7 Qf8 Rd8 Na8 Rf7 Bg7 Bh1 Ke1 f2+ Kd2 f1R Bh5 Bhe4 Rde5 Bc6 Rb5 Qg4 Rbd5 f3 Ke3 Qh4 Be5 Rh7 Qh6 Rf7 Qf4 Qg5 Bg7 Rc8 Qc3 Rff8 Qb3 Rc7 Qa3 Rd8 Rexd6+
3b1R2/2brnN1P/1pR2Rrp/qBR4b/1BNpB3/1N5n/2K4Q/2Q1k2r b - - 0 1 illegal: No possible last move
1rNnnk2/5bb1/KQ4Q1/2R1p2p/Pq1N1BrB/3p3R/3nQ3/1Q2qRB1 b - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 f5 dxc5 Kf7 exf5 Ke8 g5 h6 gxh6 g6 h7 Bh6 Bb5 Bg7 Bf1 Bf8 h4 Bg7 h5 Qb6 h6 Bf8 Be2 Qd8 Bh5 gxh5 Kd2 b5 Kd3 d5 a4 e5 f4 d4 c4 b3 c6 b2 c5 b4 Kc4 d3 Kb5 b3 c7 Na6 c6 Ra7 f6 Nb4 f5 Na2 f7+ Ke7 f6+ Ke6 Rh3 Nb4 Bf4 Ne7 Nd2 b1Q Ngf3 b2 Nc4 Na2 Nd4+ Kd5 Qe2 Be6 c8Q Bd7 Nd6 Qh1 Qb7 b1N Qb6 Qf1 Nc8 Bg7 f8Q Nf5 f7 Qe1 Qb4 Nd2 f8B Qe7 Qb1 Be6 c7 Bf7 Qg6 Rg8 h8Q Ra8 h7 Rb8+ Ka6 Qb4 Bc5 Nd6 Ba7 Ne8 Bc5 Bf8 Qhf6 Bh6 h8B Bg7 Ne6 Kc6 Nd4+ Kd7 Bb6 Nd6 Ba7 Ke8 Qe6+ Kf8 Qeb3 Bh6 Bf6 Ne8 Bh4 Bg7 Qbe6 Nc1 Qb6 Ncb3 Ne7 Na5 c8R Nb7 Rc5 Nd8 Nc8 Qf2 Qb3 Qg3 Rf1 Qe1 Qb1 Bh6 Qf5 Rg4 Qfg6 Bg7 Qbc6 Rb5 Nf3 Bf6 Rc1 Rg2 Bg1 Rb8 Nd4 Rg4 Qb6 Bg7 Rc5
2kQ1r2/4qbQR/2q1N1R1/Pn1Q2pK/rNpR4/Bbb2p1n/8/1BB3R1 b - - 0 1 legal: proof: c4 a5 f4 f5 g4 h5 gxh5 d5 cxd5 e6 b4 axb4 e4 e5 exf5 exf4 Kf2 Kd7 Kf3 c5 Kg4 g5 a4 b5 h4 b3 d4 b4 d6 f3 f6 c4 f7 b2 a5 b3 d5 Qf6 h6 Bb7 h7 Bg7 f8B Qc3 h5 Qb4 h6 Qc3 Kh5 Ne7 Nh3 Qe5 Na3 b1B Nf4 b2 Nc2 Nbc6 Ne6 Ba2 Nb4 b1Q Bd3 Na7 Be4 Qb3 Bb1 Kc8 Rh4 Qbe3 Rd4 Q3e4 Qd2 Rg8 h8Q Rb8 h7 Bb3 Qd1 Bf6 Qg7 Nb5 h8R Ng6 Rh7 Bc6 Be7 Rf8 Qd3 Be8 d7+ Kb7 d8Q Bf7 d6 Qc6 d7 Nf4+ Kg4 Qe1 Qe4 Nh3 Qd5 Bg8 Kh5 Qe2 Rf4 Bc3 Rf6 Bf7+ Rg6 Qe1 Na6 Qe2 Bea3 Qe5 Nb4 Qd6 Qdf6 Qc5 d8R Qe7 Rd6 Kc8 Ra2 Rb7 Rg2 Rb6 Rg1 Nc7 Nc2 Rb4 Qfd4 Ra4 Nb4 Nb5 Qb6 Qee8 Qd8+ Kb7 Qde5 Qed7 Rd4 Qe7 Qb6+ Kc8 Qd5 Qce8 Qbd6 Qc6 Qd8+
n7/Rp1R3B/NkQ3Q1/2rB1K2/pr2P3/q1qNpNN1/1bR5/2qb1nB1 b - - 0 1 illegal: No possible last move, all moves rejected
N2n1n2/1q5P/3pb3/1BpBpB2/1QR1brN1/b3N2Q/rR1B4/k1K1bR2 b - - 0 1 legal: proof: e4 f5 exf5 Na6 b4 Nb8 g4 Nf6 b5 Ng8 b6 axb6 d4 h5 gxh5 Rh7 d5 Rh6 c4 c5 dxc6 Rh8 c5 bxc5 Kd2 Kf7 a4 Kf6 h4 Ke5 f4+ Kd4 a5 g5 a6 b5 f6 e5 f7 b4 c7 b3 h6 g4 h7 g3 a7 d6 h5 b2 h6 g2 f5 Qf6 Rh4+ Kd5 Nc3+ Kc6 Rb1 Bg7 f8N Bd7 c8B Kb6 Rc4 Ka5 Nh3 g1B Qg4 Ne7 Nf2 Nbc6 Nd5 Nd8 Ne3 Be6 Nd7 Ng6 Nb6 Qe7 f6 Rf8 h8Q Qb7 f7 Bh2 h7 Bh6 Qh3 Bg3 Ng4 Be1+ Kd1 Kb5 Bd2 Bg5 Qf6 Bh6 Qfh4 Bg5 Ra1 b1B Ra2 Be4 Kc1 Bf4 Rc3+ Kb4 Rc4+ Kb3 Rb2+ Ka3 Bd7 Bg5 Bd3 Bf4 Bb5 Bh6 Rbb4 Ka2 Rb2+ Ka1 Bc2 Rh8 f8R Bg5 Rf4 Rf8 Rf1 Rf4 Bd3 Nf8 Bc2 Rc8 Na8 Rc6 Bd3 Ra6 Bc2 Bh1 Bf5 Be4 Nb6 Ra2 a8B Qd7 Bd5 Qb7 Ba5 Bb4 Na8 Ba3 Qe1 Bh4 Qb4 Bf2 Qa4 Bg3 Bd2 Be1 Qb4
3BnR1Q/1r2nkNp/1bnp2nq/2Br1P2/2KB3N/4Q1B1/1RN1p3/5R1b b - - 0 1 legal: proof: e4 c5 h4 b5 d4 cxd4 a4 f5 exf5 Kf7 axb5 Ke8 b4 g5 hxg5 a6 b6 Bh6 b5 Bf8 b7 Nh6 b6 Ng8 Bb5 axb5 f6 e5 Kd2 e4 c4 b4 f4 b3 g4 e3+ Kd3 e2 f5 b2 f7+ Ke7 g6 Bg7 f8B+ Kf6 c5 Ra2 c6 Na6 b8B Qe8 b7 Qe7 c7 Nh6 Ba7 Nf7 b8B Nd8 Qd2 Qd6 Na3 b1N Nf3 Rb2 Ra2 Bb7 c8N Nc7 Rf1 Nc3 Nc2 N3d5 Nh4 Nf4+ Kc4 d3 Bf2 Rb3 Rb2 Bh1 Bb6 Bh6 g7 Kf7 g5 Nc6 Ba5 Rb7 g8Q+ Ke8 Qc3 d2 g6 d1N g7 Qg6 Qh3 Nc3 Be3 N3d5 Bea7 Bg5 Qe3+ Qe6 Bd4 Bd8 Qg1 Qh6 Qe3+ Nce6 Bab6 Ng6 Bg3 Bc7 Bbc5 Bb6 Bfe7+ Ngf8 Bed6 Nde7 Bb8 Nc7 Nd6+ Kd8 Ne8 Nfg6 Qf8 Rg8 Qf6 Rf8 Qfe5 Rf6 g8R Rd6 Qf6 Rd5 Qh8 d6 Ng7+ Ne8 Qf2 Nc8 Bc7+ Ke7 Bd8+ Kf7 Qe3 N8e7 Rf8+
3BB3/5QpQ/1RQ1nknp/3R4/3N4/n1Kb1pr1/1P1Nq1rb/2N1nB1B b - - 0 1 illegal: No possible last move
1B1B1BQ1/4RP2/Rr6/1n1r4/1q1kn3/N1Np1R2/1pQBQ1p1/1b1K1brr b - - 0 1 legal: proof: g4 c5 f4 f5 e4 h5 exf5 a6 d4 e6 b4 Be7 g5 a5 dxc5 axb4 Be2 Bf6 Bg4 hxg4 gxf6 Ra5 Nd2 Ra4 Nb1 Ra8 c4 Kf7 a4 b5 h4 d5 c6 g5 c7 b3 h5 e5 a5 b2 h6 g3 c5 d4 a6 g2 a7 b4 c6 d3 h7 e4 Rh3 g4 Ne2 e3 Rf3 g3 Na3 b1B Bd2 b3 Nc3 b2 Qe2 Bd7 c8Q Qf8 c7 Qd6 Kd1 Na6 Ra2 Rb8 a8R Rb3 Ra7 Qb4 Qa8 Be6 c8Q+ Nc7 Ra6 Nb5 Ra7+ Ne7 Rb7 Rg8 h8B Rd8 Bg7 Rd7 Bh6 Rd5 Bg5 Bd7 Qc6 Nc8 Qc5 Kg8 f7+ Kg7 Bd8 Ncd6 f8B+ Kf7 f6 Ke6 f5+ Ke5 f7 Ne4 f6 Bh3 Qcc8 Kd4 Bd6 g1R+ Be1 Bg4 f8B Bh3 f7 Bf1 Re7 g2 Bb8 Rh1 Qac6 Rg1 Qe8 Rh1 Qc2 Rg1 Bd2 e2+ Ke1 Rh1 Qg4 Rg1 Qg8 Rh1 Qd7 Qc4 Rh3 Na7 Qf5 Rb6 Qf3 Qb4 Nc4 Nb5 Ra6 Ng3 Kf2 e1R Na3 Be2 Qh5 Reg1 Qf3 Bf1 Ke1 Ba2 Qe2 Bb1 Kd1 Ne4 Rf3
b2BQ3/3Bp3/P1bnb1NQ/3Rpr2/4nr2/1q4b1/2Q1pB1Q/Nk2KR1N b - - 0 1 legal: proof: e4 d5 h4 dxe4 d4 a5 b4 g5 bxa5 c5 hxg5 f6 dxc5 Be6 Qd5 Bc8 Qe5 fxe5 c4 Kf7 g4 Ke6 f4 b5 a4 h5 g6 h4 g5 Kf5 c6 e3 c5 Ke4 a6 h3 f5 e2 a7 Kd3 a5 Kc2 a6 b4 f6 b3 g7 b2 g6 h2 f7 Qe8 c7 Rh3 c6 Nh6 g8Q Re3 g7 Bb7 c8N Nf5 c7 Nh6 Nf3 Be4 Ra5 Bc6 Bd2 Nf5 Nd6 Qd7 c8Q Qd8 Qh8 Qb6 g8Q Ng3 Bh3 Rd3 Qgg7 Qb7 Rf1 h1B Nf5 Qb5 N3h4 Rd7 Qgh6 Ne4 Ng6 Rd4 Ng3 Nd6 Bd7 Qb3 Rd5 Rf4 Ba5 Bg7 f8B Bf6 Qe8 Bh4 Nd2 b1B Bd8 Ba2 Bg7 Rf5 Bf6 Be4 Bg5 Bf3 Be3 Rf4 Ne4 Kb1 Bf2 Bg2 Nh1 Bg3 Nc5 Rf5 Be6 Nd7 Q8h7 Nf6 Bd7 Rc8 a8Q Nfe4 Qb8 Bf3 Qc7 Rb8 Qh2 Rb4 Q7h6 Ba8 Ne6 Nf6 Ra5 Qd3 Qc6 Rbf4 Nc5 Be6 Nb3 Qe3 Na1 Qb3 Qc3 Bfc6 Rd5 Nfe4 Qc2+
rQN1r3/n2R4/r3k1n1/nRB1N1qQ/1Pp2p2/1bRNq3/B2p4/1K1RB3 b - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 c4 exf4 g4 Be7 gxh5 Nh6 b4 Ng8 Kf2 Bc5+ d4 Bb6 c5 Qe7 cxb6 Qd6 d5 Qxd5 Qc2 Qd6 Qd1 Qd2 h4 Ke7 h6 d5 h5 f5 b7 g5 b6 c5 h7 a5 h6 g4 Na3 d4 Nc4 f3 Nb2 d3 Rh3 Qe3+ Ke1 g3 Bd2 Na6 b8R f4 b7 Qd4 e4 a4 e5 g2 e6 Kd6 e7 a3 e8N+ Kd5 Nd6 Be6 Nc8 a2 Bc3 f2+ Kd2 Ke5 Kc1 Bb3 Qh5+ Ke6 Nf3 g1Q Ne5 Ne7 Be1 Re8 h8B Ng6 h7 Nc7 Bf6 Qg4 h8R Nb5 Rh7 Na7 Rd7 Qg5 Be7 c4 Bc5 Qe4 Bg2 Qe2 Be4 f1N Rb1 a1R Rf3 Ra2 Ra1 d2+ Kb1 Ng3 Rc3 Ra6 Bc2 Ne4 Nbd3 Qe3 Bd1 Ba4 Bb3 Nd6 Ba2 Bb3 Kb2 Ndb5 Rd1 Nc6 Ka1 Ra3 Kb2 Na5 Kb1 Ra6 Ra8 Na7 b8Q Nb5 Raa7 Ra4 Rac7 Na7 Rb7 N7c6 Rd4 Ra8 Qh6 Na7 Rb6+ N5c6 Rd7 Ra6 Rb5 Na5 Qh5
2Q1rn2/1Q1N3B/1bN5/P1QKN1n1/5pR1/3Bq2Q/pR1r2p1/q3kqBn b - - 0 1 legal: proof: f4 b5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 a4 bxa4 b3 a3 Bb2 a2 Ba3 a5 Bc1 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Ra5 Bh3 Ra7 Bf1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 h4 c5 d6 g5 d5 f6 h6 g4 a5 f3 h7 f2 h5 g3 h6 g2 d7 Nc6 d6 Rb8 Qd4+ Kb3 Nd2+ Kc2 Rb1 Kd1 Nb3+ Ke1 Kd5 a1Q e4 a2 e5 f5 e6 c4 e7 c3 e8B c2 Rh4 f4 Be3+ c1Q Nc5 Qf6 d8Q Qe7 d7 Rb4 Qc7 Bg7 d8N Bf8 Rg4 Rb2 Nd7 Rd2 Rb2 Ne5 Bg6 Nf3 Nc6 Ng5 Bfd3 f1N Qb7 Ng3 Qc5 Nh1 Bd4 Qe3 Nf3+ Kf2 Bge4 Qf1 Nfe5 Ke1 Bf5 Qg3 Bg1 Ne7+ Kd6 Ng6+ Kd5 Rg8 h8Q Qe3 h7 Bd6 Be4 Bc7 Bf5 Ra8 Qhc8 Nf8 h8Q Bb6 Qh3 Rb8 Bh7 Ra8 Qcc7 Re8 Qcc8
NR1B3b/RK3n1b/3bB2n/pQ3p2/Bq2QR2/k2P1pq1/q1r3N1/B6N b - - 0 1 legal: proof: b4 a5 h4 b5 f4 d5 a4 e5 axb5 exf4 c4 g5 cxd5 gxh4 b6 Qd6 b5 Ra6 bxa6 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 a7 c5 a8N h5 b7 f6 d6 h3 Kd5 c4 e4 h2 e5 c3 g5 f5 e6 f3 d7 h4 e7 h3 e8Q c2 g6 Bd6 g7 Qg5 d8B Qe3 Bb2 c1B Nc3 Qg5 Nce2 Qg2 Qe1 Qg3 Nf4 Nd7 Kc6 Nh6 g8B Ne5+ Kb6 Nef7 b8R Ba6 Nge2 Bc4 Kb7 Rh7 Rg1 h1Q Ng2 h2 Ra4+ Kb3 Ba1 Bb2 Rb4+ Ka3 Qb5 Bh8 Qb1 Ba2 Rf4 Rg7 Qe4 Rh7 Nh4 Qhg2 Rh1 Q2f2 Ng2 Qc5 Rg1 h1Q d3 Qhh4 Rh1 Qgf2 Ng3 Qb4 Be2 Bc4 Bd1 Qa2 Rg1 Qg5 Nh1 Qg3 Bb3 Rg7 Ba4 Rg4 Bb6 Rh4 Bd8 Rh2 Ne3 Rc2 Ng2 Ng5 Rc1 Bf7 Rb1 Bg6 Be6 Bh7 Rg1 Ngf7 Rc1 Rb2 Rc6 Rf2 Ra6 Rc2 Ra7
b3b2R/NqRN2k1/1rQ2QP1/4bnpQ/p3K3/1r6/qB4pr/1QNR1B2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 Nc6 axb5 Ne5 h4 Ng6 f4 e6 f5 exf5 h5 fxg4 hxg6 g3 b4 f5 e4 a5 Ke2 h5 Kd3 c5 d6 f4 b6 f3 b7 h4 b8N g2 b5 a4 d7+ Ke7 b6 Kf6 e5+ Kg7 e6 c4+ Ke4 f2 d4 c3 b7 h3 e7 h2 e8Q c2 d5 Bd6 Na3 Be5 d6 Qb6 d8R Ra6 d7 Ne7 Nb5 Rh3 Qh5 Nf5 Ne2 Rb3 Bb2 c1Q Na7 Qd2 Rd1 Qb5 Rg1 h1R Nc1 Rh2 Qe6 Rc6 Rh8 Rb6 d8Q Bd7 Qd6 Be8 Nd7 Qa6 b8Q Qb7+ Qc6 Qc2+ Bd3 f1B Rh1 Qd2 Ba6 Be2 Bc4 Bg4 Bf1 Rh4 Rh3 Qf2 Rc3 Rh2 Qd6 Qc2+ Qd3 Qb1 Rc5 Qa2 Qb1 Be2 Qd5 Bb5 Rc7 Bc6 Qe7+ Bf7 Qe6 Be8 Qd6 Qa6 Qe6 Ba8 Qdc6 Qb7 Qf6+
Q3K2N/1r1B4/2P3QQ/bp3Rq1/2rB1nq1/3rB1p1/bkbR2pN/5BN1 b - - 0 1 legal: proof: g4 b5 d4 c5 b4 f5 e4 h5 exf5 hxg4 a4 Na6 dxc5 Nc7 a5 Nd5 Ra4 Nb6 axb6 a5 Ra1 axb4 Ke2 Kf7 Kd3 Kf6 Kd4 e5+ Kd5 g5 f4 g3 c4 b3 h4 d6 Kc6 d5 h5 d4 b7 d3 b8Q g4 h6 d2 h7 b2 Rh2 e4 Qc2 d1R Rd2 Ra5 Qa8 g2 Ra3 g3 Rf3 e3 Rff2 Ke7 f6+ Ke6 f5+ Ke5 f7 e2 f6 e1Q Qg6 Ra7 Rf4 Be7 f8Q Bf5 f7 Bc2 Qfh6 Qe2 f8B Nf6 Bg7 Rb7 Rf2 Rf8 h8N Qg4 Rf5+ Ke4 Qa6 Nd5 Qa8 Bh4 Bd4 Qdg5 Kd6 Rc8 c6 Nf4 c7 Rg8 Kd7 Rc8 Rf2 Rd3 c5 Rc3 Re2+ Kd3 Nd2 b1B Ndf3 Ba2 Nh2 Kc4 Bd2 Kb3 B2e3 Rc4 Rd2 Rd8+ Kc6 Rd5 c8B Rdd7 Bb2 Rd3 Bd7 Q5h5 Bg7 Bd8 Bgd4 Qhg5 Kd6 Ba5 c6 Ne2 Ke6 Nf4+ Kf7 Ka3 Ke8 Kb3 Ba7 Kb2 Bad4+
1Q5B/2r2B2/Kp1q2R1/nN4r1/QNpBNb2/1b3p1q/3bR1PN/1k1R3r b - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 e4 Ke7 Ke2 Ke6 d4 c5 a4 f5 g6 h5 a5 f4 a6 c3 Kd3 b3 Kc4 h4 Kb5 h3 g7 c2 d5+ Kf7 a7 Kg6 e6 b6 e7 b2 e8Q+ Kf6 e5+ Kf5 d6 Ke4 e6 h2 d7 Nh6 g8R Na6 e7 Nf5 Rg6 Rh5 Na3 b1Q+ Bb2 c1B Nc2 Nb8 Bc4 Bd2 Ra2 Rg5 Nf3 Bh6 Nb4 Ne3 Bd4 Nc6 Qa4 Qd3 Re1 h1R Nh2 Na5 Rc2 Qc7 d8B Be6 Ka6 Rc8 a8N Qd6 Nc7 f3 Nb5 Rc7 Ba2 Bb3 Qf8 Qg3 e8N Qh3 Bh8 Qd5 Bdf6 Qdd7 Bd4 Qd6 Rf1 Nd1 Nf6+ Kf5 Qb8 Kf4 Ba1 Ke3 Ne4 Ke2 Rg1 Ke3 Bad4+ Ke2 Nc6 Kd3 Re1 Bf4 Rf2 Bd2 Rfe2 Kc2 Nb4+ Kc1 Bb1 Bf4 Bd3 Bd2 Bc4 Kb1 Bf7 c4 Rg7 Rf5 Rg4 Bhf4 Rg6 Rg5 Rxd1+
1Qq5/2r1RbKP/3N4/RB2Q1k1/BRrnp1b1/1B1Q1p1b/pr1B3q/3N4 b - - 0 1 illegal: No possible last move
1BNq1N2/n6p/1k1n2Q1/1nRKB1q1/r1BppqR1/2b1Q2B/2P5/3rQ2N b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Ke2 e5 Kf3 a5 Ke4 f3 b4 d3 g6 f2 g7 d2 f6 a4 f7+ Ke7 b6 Kd6 g5 Kc6 g6 a3 b7 d6 b5+ Kc5 b6 a2 Rh5 Qd7 Bh3 f1Q Ne2 Qb5 Nbc3 Kc6 Bb2 Nh6 g8Q Nf5 Qe1 d1N Ng3 Bg7 Nd5 Ra4+ Bd4 Qa5 f8N Qc5 Rb1 a1Q Nh1 Qa5 Rb4 Qc1 Bb2 Qg5 Ne7+ Kc5 Qb3 Nc6 b8Q Na7 b7 Qd8 Ba1 Bf6 g7 Qf2 g8B d5+ Kd3 Nc3 Rg4 Ncb5 Bf7 Qa5 Qe8 Nfd6 b8B Kb6 Bg8 Qff4 Qg6 Ka6 Qa3 Qd8 Qac1 Kb6 Qce3+ Nd4 Bb2 e4+ Kc3 Kb7 Be6 N4b5+ Kb3 Bc3 Bf7 Ba5 Be5 Bc3 Be6 d4 Bc4 Ra1 Q1f2 Rd1 Qfe1 Bb2 Kb4 Bc3+ Kc5 Rg8 Kd5 Rg7 Nf5 Rc7 Ne7 Kb6 Be2 Rc4 Bef1 Ra4 Bc4 Qf3 Ke6 Bb4 Bf6 Qh6 Rc5 Bc3 Kd5 Qg5+ Be5 Qff4 Nc8+
1QR1QRK1/4p2P/k4q1b/4q1RN/4NQB1/2p1B2n/Q3r2p/rnq1n1B1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 g4 h5 Qa4 h4 Qb3 Bf5 Qd1 Bg6 h3 Bh5 gxh5 g4 Qa4 gxh3 Qb3 Nc6 Qd1 Nb8 Ke2 Kd7 Ke3 Kc8 Kf4 Kb7 Kf5 c5 Ke6 a5 Kf7 e3 f4 c4 d4 c3 b4 h2 h6 a4 h7 e2 b6 e1Q b5 a3 f5 a2 d6 h3 f6 Bg7 d7 Qf2 d5 Qe1 d6 Qc8 d8Q Ra4 d7 Ra5 Nd2 Qc7 Qe2 Qeg3 Qe8 Qge5 d8B Ra4 Ne4 Na6 Be3 Nb4 Qd2 Nd5 Ne2 Qcd6 N2g3 Bh6 Rg1 h1Q Nh5 h2 Be2 Nf4 Rg5 Nh3 Bg4 Qc1 Rb1 a1N Qa2 Ra7 Rb4 Ra3 Rc4 Nc2 Rc8 Ne1 Bc7 Qdd4 Bd6 Rb3 Bc5 Rb2 Bg1 Qdd6 Bce3 Re2 Rf5 Bf4 Rg5 Qde6+ Kf8 Qc6 f7 Nf6+ Kg7 Qcd6 f8R Qdd4 Neg3 Ne4+ Kf7 Nd2 Ne4 Rg8 Bgf2 Rg6 Bg1 Rd6 Kg8 Nb1 Rc4 Rd8 Rc7+ Kb8 b7 Qb6 Rc4 Qa6 Rc5 Ka7 Rc8+ Rd4 Qb3 Qh6 b6+ Ka6 b8Q Qhf6 b7 Ra4 Qa2 Ra5 Qc7 Ra3 b8Q Ra5 Rg7 Bh6 Rg5 Ra4 Qcd7 Ra5 Qf5 Ra4 Qf4 Ra3 Qd5 Ra1 Qa2+
6nR/2P2Qn1/Kb2qQp1/1BpkNBpq/2b3rN/3B1R2/1NQn2Q1/7q b - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 c5 b4 a6 bxc5 h6 g4 b4 g5 hxg5 c4 d6 c6 a5 c7 Nh6 c5 Rh7 c6 Rh8 Bb2 Ng8 Bd4 Ra7 Be3 Rb7 Bc5 Rb5 axb5 dxc5 h4 Ke7 e4 Ke6 Ke2 f5 d4 f4 Kd3 g6 Kc4 f3 d5+ Ke7 d6+ Ke6 d7 a4 h5 a3 b6 f2 Kb5 a2 h6 b3 b7 b2 h7 Bg7 Qc2 Bh6 Nc3 b1N Na4 Bg7 Nf3 Bh6 Bd3 f1Q Nb2 Qg1 Nh4 Nd2 Rf1 a1Q Rf3 Qe8 d8N+ Ke7 e6 Kd6 e5+ Kd5 e7 Qa8 e6 Qe1 Nf7 Na6 b8Q Bg7 Ne5 Bf6 Qb7 Qd1 Rhh3 Qf7 e8Q Bd8 e7 Be6 c8B Nc7+ Kb6 Qf5 Qf7 Ne8+ Kb5 Ng7 e8B Bb6 c7+ Kd6 Rh1 Ba2 Qe4 Qe6 Rh2 Qad5 Ka6 Bc4+ Bb5 Qc6 Qg4 Kd5 Qg2 Qh1 Qe7 Qg4 Bcf5 Qh5 Qf8 Qe6 Qf7 Nf6 Rhh3 Rd8 h8Q Ng8 Rh2 Ra8+ Kb7 Ra1 Rhh3 Re1 Ka6 Re4 Rh2 Rg4 Rhh3 Ne8 Qhf6 Ng7 Qf2 Rg3 Ng2 Qg4 Rh8 Qgh5 Nh4 Rg4 Qg2
2bNq1B1/k2B1bK1/5rb1/1R1Nr1NQ/Q6N/1pQp1R2/bp2bP1B/4n3 b - - 0 1 illegal: No proof kernel
1n2b2b/1b2QQNB/1N3nNq/3pR3/2kPQB2/R1p2pbB/2K3b1/1Q2r3 b - - 0 1 legal: proof: b4 b5 c4 a5 g4 e5 f4 exf4 c5 h5 gxh5 Bd6 a4 Ra6 axb5 Rb6 cxb6 axb4 Ra6 Be7 Ra1 Bf8 h4 Ke7 e4 Ke6 d4 f5 Kd2 c5 h6 g5 h5 d5 b7 g4 b6 f3 e5 f4 h7 b3 h6 b2 Qc2 g3 Ne2 c4 Bh3+ Kf7 e6+ Kf6 e7 g2 e8B g1B Qe4 c3+ Kc2 f2 Bg6 f1B Ng3 f3 Nf5 Qe7 Bf4 Ba6 Ra3 Qg7 Nd2 Bh2 Nc4 Bg3 Re1 Bd6 Re3 Be5 Re1 Qf8 Ng7 Ke7 Re3 Nf6 Bgf5 Rg8 h8Q Bb5 Bg6 Be8 Qh7 Rh8 Qg8 Kd8 h7 b1B+ Kb3 Qd6 Qf7 Bd3 Bgf5 Rg8 h8N Bf1 Kc2 Bg2 Bh7 Qe6 Ng6 Rh8 Qg8 Kd7 Qf7+ Kc6 Re1 Kb5 Re2 Nbd7 b8Q Bb7 Qd6 Nb8 Qde7 Rg8 Nb2 Rf8 Na4 Kc4 Re3 Qf5 Re1 Qg5 Re3 Qh6 Re2 Bbc6 b7 Qg5 Qc7 Nfd7 Qef5 Qh6 Nh4 Na6 Ne6 Bh8 b8Q Nf6 Qb1 Bd7 Ng7 Nb8 Ng6 Re8 Qd8 Re3 Qde7 Be8 Q5e6 Bb7 Qf5 Rd3 Re5 Re3 Qe4 Re1 Nb6#
2Rq2BB/k1p1pQ2/4B2n/NQ1np1QN/2r3Qb/3K3N/3P3n/nR1n2r1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 b4 e5 b3 axb3 f6 b4 Bb7 b5 Bc8 f4 fxe5 g4 g5 h3 gxf4 g5 Bg4 hxg4 Qd7 Ra6 Qd6 Ra1 Qd8 Ke2 Kd7 b4 Kc8 b6 Kb7 g6 a5 g5 h5 d6 a4 b5 a3 g7 h4 d7 a2 g6 f3+ Kd3 h3 Nc3 h2 Bh3 f2 Nce2 f1N Nf4 Rh6 Nh5 Nc6 Bb2 Qe8 d8Q Na7 Rb1 a1N Bd4 Nf6 g8Q Rc8 g7 Qc6 Qe8 Qe6 Qef7 Nc6 Qg4 Nd8 Be3 Nd5 Bg5 Qd7 Bf6 Ra8 Qg5 Ra4 Be6 Rc4 Nh3 Rg6 Rg1 Ka8 b7+ Ka7 b8N h1N Rg2 Nh2 b6+ Kb7 Nc6 Nf2+ Ke2 Nd1 Na5+ Kb8 b7 Ka7 Kd3 Qc8 Qe8 Nf7 b8Q+ Ka6 Qb3 Nh6 Qeb5+ Ka7 Qf7 Qa8 g8B Qd8 Bh8 Bg7 Q3a4 Bf6 Rg1 Rc1 Qag4 Rc4 Q5f5 Bh4 Qfg5 Rf6 Rg2 Rf1 Rf2 Re1 Rf4 Rg1 Rd4 Nb6 Rd6 Nd5 Rb6 Rc6 Rb8 Rc4 Rc8
5r2/PB2Bp1R/BR2r3/NK6/Q1NQ1pr1/q2Bbr2/3rnp2/QRn2k2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 g5 b4 e5 bxa5 e4 f4 exf3 Qa4+ Nc6 Qf4 gxf4 h3 Bf5 g5 Bg4 hxg4 Nb8 a4 Ke7 d4 Kd6 Kd2 b5 Kd3 c5 e4 h5 g6 b4 Kc4 f2 g7 h4 e5+ Kd7 e6+ Kd6 g5 h3 a6 h2 e7 b3 e8Q b2 g6 Qd7 a7 Rh4 a5 Nf6 g8Q Qc7 a6 Rh8 g7 Nh5 Nf3 Ng3 Kb5 c4 Ne5 c3 Nc6 c2 Na5 Nc6 Na3 Rd8 a8B Qa7 Bb7 Ne2 Rb1 Ne5 Bd2 Rh4 Qh8 c1R g8B Rc6 Bh7 Rg4 Bd3 Rc2 Bc3 Rd2 Bb4+ Qc5+ Ka4 Rc8 a7 Rc6 Bda6 Nd3 Qg7 Ndc1 N3c4+ Kc7 Qe4 Re6 d6+ Kd7 d5 Be7 Bc3 Qa3+ Kb5 Bf6 Qc2 Bd4 Bb4 Bc5 Qa4 Be3 Ra1 b1R Qh8 Ng1 Bd3 Rb3 Rb1 Nge2 Qa1 Rc3 Nb2 Rc8 Nbc4 Rf8 Bc5 Kd8 d7 Kc7 Rd1 h1R d8R Rh5 Rh1 Rh3 Rd6 Rf3 Rb6 Kd7 Rh7 Kc7 Qa2 Kd7 Bd4 Ke7 Bc5+ Kf6 d6 Kg5 d7 Nb3 Rg7+ Kh4 d8Q+ Kh3 Qd4 Kg2 Be7 Nbc1 Qaa1 Kf1 Rh7
4r1r1/k4Q2/1P1K1BN1/1QNn2pp/r1B3q1/bR6/p1B3Rn/N2n1rRR b - - 0 1 illegal: No possible last move
Q1R4K/Nn1nPpNR/p1bb1Nb1/2r1b1N1/1k1B2Rq/6pB/Q6B/4n3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 h4 e5 a4 b5 axb5 a6 f4 exf4 g3 Ra7 Bh3 Rb7 Bg2 Rb6 Bf1 Rg6 Ra5 g4 Ra1 Rg5 hxg5 fxg3 e4 Kd7 Ke2 Kd6 Ke3 Kc5 Kf4 h5 Ke5 c6 d4+ Kb4 b6 c5 b7 h4 d6 g2 d7 h3 g6 c4 g7 h2 d5 c3 d6 c2 Nf3 g1N Nc3 Nh6 g8N Qc7 Kf6 Qa5 d8Q Nh3 e5 Qd5 d7 Bd6 Kg7 Qa2 e6 Kb3 e7 Bf4 Qd2 Be5+ Nf6 Bc7 Nb5 Bf4 Ng5 Nf2 Bh3 Qa4 Na7 Nd3 Ra3+ Kc4 b4 Bd6 b5 Ne1 Bb2 c1B Bd4 Bb2 b6 Re8 Qg2 Kb4 Rg3 Nf5+ Kh7 Ba1 Qa2 Rg8 Qf8 Rg6 d8N Nd7 b8B Rh6+ Kg8 Rh5 b7 Bc3 Rf1 h1B Nde6 Bc6 Rh1 Bb2 Bc7 Ba1 b8R+ B8b7 Bg1 Bae5 Bd4 Be4 Rc8 Bbc6 Ng7 Bb1 Re3 Bd3 Re4 g3 Bcb6 Qb3 Bg1+ Qc4 Rg4 Qf4 Bbd4 Bb1 N5e6 Qg5 Bh2 Qh4 Ng5 Bc7 Bhg1 Bb8 Nf3 Qg5 Rc7 Nd6 Bf1 Bf4 Rh3 Bd3 Bh2 Nb7 Qc8 Bh7+ Kh8 Qh6 Qg8 Rc5 Ng5 Be5 Rhh4 Qh5 Bh3 Qh6 Rc8 Bbd6 Rc7 Qh5 Qa8 Qh6 Rc8 Bg6+ Ngh7 Qg5 Rh5 Qh4 Ng5 Rd5 Rh6 Rc5 Rh7
1Qqr3R/5b1K/n1N1k1p1/1Q1b1R1n/Q2p1PBb/3N1q2/1N2B1p1/2bR3R b - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 c5 a4 cxd4 e4 b5 axb5 h6 e5 Ra6 Bg5 hxg5 f4 Rf6 exf6 Qc7 Be2 Qb6 Bf1 Qd8 Kd2 Kf7 Kd3 d5 c4 e5 h4 g4 b4 g3 c5 g2 b6 a4 b7 a3 h5 a2 c6 Bd7 c7 Nc6 b8N Qc8 b5 Be8 h6 Ba3 h7 Bd7 b6 Be8 Nd2 g6 b7 e4+ Ke2 e3 Kf3 d3 Kg4 e2 Kg5 e1Q Ne2 d4 Qa4 Nce7 Nc4 d2 Nc1 d1B Nc6 Qe4 Be2 Qf3 Rb1 Qe6 c8B a1B Bd7 Nd5 Bc8 Nge7 Kh6 B1b2 Bd7 Rg8 h8R Nc7 Kh7 Na6 Nd3 Bb3 Rbd1 Bc1 Ncb2 Nd5 Bc8 Be7 Bd7 Kf8 f7 Bh4 Bc8 Qd7 Qb5 Qc7 b8Q Bc4 Na5 Ke7 f8Q+ Kd8+ Bd7+ Qc8 f6 Bb3 f7 Nf6+ Kh6 Bc4 Qa3 Bd5 f8R Nh5 Qaa4 Ke7 Rf6 Rf8 Bg4 Bef7 Kh7 Rd8 Rf5 Ke6 Nc6
R3rqq1/1Q1QNPB1/K1R3N1/R5pq/pB5n/2Q2pN1/b4kqb/nQ6 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Kf2 h5 Bg2 a5 Ke1 f4 Bh3 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 b4 Ke7 h4 Kf6 d4 c5 Kd2 g5 Kc3 c4 e4 f2 d6 f1Q b6 f3 h5 g3 e5+ Kg7 h6+ Kh7 d5 g2 f6 Kg6 b5 Kf5 d7 Kg4 b7 Kg3 b6 Qe1+ Bd2 Nc6 b8R Ba3 b7 Qf1 f7 Nd4 h7 Bf8 e6 Bc5 e7 Qe2 e8Q Qe5 d6 Qe6 Ne2+ Kf2 Ra8 g1Q b8Q Nb3 Rh6 Ba3 Qb7 Qd5 Qe5 Qe8 d8B Ne7 d7 Ng6 Bf6 Qg2 d8Q Qc5 Bg7 Be6 Qdd7 Nh4 Qec7 Rf8 h8N Bd5 Ra2 Na1 Rha6 Qce7 Ng6 Bd6 Qdb3 Bh2 Ng3 Rg8 Rc2 a4 Ra5 Q7d8 Kb4 Qde7+ Kb5 c3 Bf8 Be6 Ka6 Bc4+ Q3b5 Ba2 Qcc4 Qb4 Qcc6 Qg4 Bg7 Qh5 Qcc8 Rh8 Rc1 c2 Nc3 Qg8 Nd5 Qgh7 Qb1 Re8 Bb4 Qg8 Re1 Qhh8 Re6 Qh5 Bd6 c1Q Qc3 Qf4 Bb4 Qd4 Rd6 Qc5 Rc6 Qcf8 Nde7
3R2q1/P1n3Nq/1BR2p2/2b1pQ1q/2NB1p2/QKn1Nq1b/3B3B/Q1r3k1 b - - 0 1 legal: proof: f4 a5 c4 b5 b4 g5 bxa5 d5 cxd5 h6 g4 Nc6 e4 Ra7 d4 Nb8 d6 Kd7 e5 Ke6 Be2 gxf4 g5 Kf5 d5 h5 Bg4+ hxg4 d7 Ra6 Bb2 Kg6 Bc1 Rd6 exd6 Kh7 Kf1 Kg7 Ke1 Kg6 Kd2 Kf5 Kc3 Ke4 h4 c5 a4 b4+ Kb3 e6 a6 g3 a7 g2 a8Q Qf6 d8B Rh5 a5 Na6 g6 Bg7 d7 Rh6 h5 Nb8 a6 Bb7 d6 Qf5 Bh4 Qe5 d8N Bf8 d7 Ne7 g7 Nd5 g8Q Bc8 Nf3 g1Q Nbd2+ Ke3 Nd4 Nc3 Qh7 Qg8 Bg3 Qf5 a7 Na6 Rh3 Qe5 Qf5 Nc7 Ra6 Qe4 Qh1 Qf3 Rc6 Rh8 h6 c4+ Kb2 b3 h7 Bc5 Nc2+ Ke2 Ne3 Qh5 Qb7 Qf3 Qb4 Qh5 Ka3 b2 Qg1 b1Q Rh1 Qd3 Kb2 Qe4 Qa3 Qef3 Rh4 Ne4 Rh3 c3+ Kb3 c2 Nc4 Nc3 Bd2 c1Q Rh1 Qe1 Rh2+ Qef2 Qga1 Qe4 Rh1 Qff3 Rd1 Qd3 Nb7 Qde4 d8B Bd7 Nbd6 Qd3 Bh2 Kf2 Ne8 Bc8 Bf6 Bd7 Bd4 e5 Ng7 Qf1 Bg3+ Kg1 Qfb1 Bh3 Qc2 Qa8 Qf5 Rc8 h8B Qe4 Ne8 Qef3 Bf6 Qh7 Ng7 Qfh5 Bd8 f6 Bde1 Qff3 Rd3 Na6 Bb6 Nc7 Bd2+ Nb1 Re6 Nd5 Nb2 Bb4 Bdc5 Rc6 Rd4 Nc7 Rd5 Qb8 Bd4 Rc1 Rc6 Qbg8 Nc4 Bc5 Rd8 Nc3 Bh2+
2bb1qB1/pp1P2B1/2R1Q2p/qRN1BQ2/2BbQ2b/N1r4n/5NK1/3k3n b - - 0 1 legal: proof: b4 d5 a4 c5 e4 g5 h4 gxh4 Ra3 f5 Ra1 c4 a5 Bd7 exf5 Na6 c3 d4 cxd4 Rc8 d5 Rc5 bxc5 Nb4 Ba3 Na2 Bb2 Qxa5 Bc1 Qd8 f4 Kf7 Kf2 Kf6 g4 e5 d4 h6 c6 e4 c7 h3 c8Q h2 d6 c3 g5+ Kf7 f6 Kg6 d5 Kf5 f7 c2 g6 Qf6 g7 Nc3 Bb2 c1B Nh3 Be7 f8B Ne2 Qd4 Kg4 f5 Nf4 Ra5 Be6 Bc3 Bb2 Rb5 Rh7 Bd3 e3+ Kf1 Qf7 f6 Kf3 Qcc4 Qe8 f7 Nf6 g8B N6h5 Qe5 Bc8 Qe6 Qd8 Be5 Qa5 Nf2 Nh3 Na3 Bc3 Qh4 Bd4 Rg1 Rg7 Rh1 Rg3 Bfg7 Bf6 Rg1 Bg5 f8Q+ Bf6 Ng4 h1Q Qff7 Qh2 Nf2 Rg4 Rh1 Qf4 Qg6 Bg5 Qh7 Qf8 Qhf5+ N3f4 Rh3+ Ng3+ Kg1 e2 Rh1 Ke3 Rh3 Ng6 Kg2 Kd2 Rh1 Re4 Rc1 Nh1 Rc6 Re3 Bc4 Rc3 Qhf4+ Ke1 Q4g4 Bf6 Qh4 Qe8 Qhe4 Qf8 d7 Kd2 d8N Be7 d6 Nf4+ Kg1 Ke1 d7 Nh3+ Kg2 Kd2 Qeg6 e1B Nd3 B1h4 Nf2 Kc1 Ne6 Bd8 Nc5 Kd2 Qge6 Kc1 Nfd3+ Kd1 Nf2+
b3Q3/bQ2n3/2nk1BP1/r2NR1b1/2Q1K1pn/pBN1BRp1/4R3/2b2Br1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 dxc5 g5 e4 fxe4 a4 h5 axb5 Qb6 Ra3 Qg6 Ra6 hxg4 Ra1 g3 Qe2 g4 Qd1 Qg5 fxg5 Rh6 Ra2 Rh5 Ra1 Rh8 Kd2 d5 Ke3 Kd7 h4 e5 b4 a5 c4 a4 c6+ Ke6 c5 a3 c7 Ra5 b6 Bh6 h5 Ne7 c6 Ra6 b5 Rg8 b7 Ra7 b6 Ng6 Qf3 Ne7 Nh3 Rh8 Nc3 Kd6 Rh2 Ra5 Re2 Bf5 c8B d4+ Kd2 d3 Ke3 d2 c7 Rf8 Be6 Nbc6 b8R Rh8 c8Q d1N+ Kd2 Re8 b7 Ne3 g6 Ng2+ Nf4 Bg5 h6 Nh4 h7 Rh8 Kc2 e3+ Qe4 Re8 Bb3 Bd7 Qa4 e4 h8B Be6 Bg7 Bd5 Qc4 Rh8 Bf6 Rh5 Re1 e2 Qe8 e3 Kd3 Bf3 Ra2 Bd5 Rd1 e1B Re2 Bf2 Rde1 Bf3 Nfd5 Bg1 Rf2 e2 Be3 Bh1 Rf3 Rh8 Ra1 e1B Ke4 Bd2 Ra2 Bc1 Re2 Rh7 Bd2 Ba7 Be3 Bg2 Rc8 Nb8 Rc5 Nbc6 Qf8 Rh8 Qf7 Rc8 b8Q+ Rc7 Qbe8 Rb7 Bd1 Rb1 Bb3 Bh3 Nf4 Nc8 Bg2 Ne5 Rf1 Bb2 Kd4 Rc1 Rff2 Rg1 Bf1 Bg2 Qg7 Bb7 Rf3 Nc6+ Ke4 Bc1 Re5 Ba8 Qb7 N8e7 Nfd5
n2N1n2/R1r2Rn1/5q2/b1n5/P1kpQ3/pR1N2K1/2p1QB1Q/qBn2R1B b - - 0 1 illegal: No proof kernel
1NB2RQ1/1qq1B2Q/1NQPq1r1/bb2p3/1p1q2k1/1p4n1/N1R1R2b/1K4Q1 b - - 0 1 legal: proof: g4 a5 e4 b5 f4 g5 c4 f5 h4 Nc6 b4 fxe4 f5 d5 cxd5 axb4 f6 Nd4 Kf2 Nf5 gxf5 g4 Ke1 Nh6 Qa4 Rg8 Qb3 Rg5 hxg5 Ng8 Qd1 Kf7 Bg2 Nh6 Qc2 Bd7 Ke2 Qe8 Nf3 Bg7 Qc4 Rd8 Bh3 Bc8 Bf1 Qd7 Qc2 Rh8 Qa4 Bf8 Ke1 Ng8 Ng1 Qd8 Qd1 Ke8 d4 Kf7 Kd2 h5 Kc2 e5 a4 c5 d6 g3 a5 h4 d5 c4 a6 c3 a7 g2 a8N e3 d7 h3 d6 e2 Rh2 e1B Ra2 Rh5 Nb6 Qe8 d8Q Rh6 Ne2 g1Q Qd7+ Qe7 Qc6 Rg6 Nd4 Ba6 Re2 h2 Bh3 h1Q Be3 b3+ Kc1 c2 Nc3 b4 Bf2 Qg4 Bh4 Bf2 Qg1 Qe6 Rb2 Nh6 Na2 Qge4 Bg4 Be7 Bh3 Kg8 f7+ Kg7 f8R Bb5 f6+ Kh7 f7 Bd8 Bg4 Bg3 Bf5 Bh2 Bg4 Rf6 g6+ Kg7 Bh3 Nf5 Bg4 Kh6 g7 Ng3 g8Q Rg6 Be7 Qhf3 Bf5 Kh5 Bh3 Q6d5 Bc8 Qe6 Qh7+ Kg4 Qa8 Qfd3 Nc6 Qc3 Nb8 Qcd4 Qc6 Bc7 Rd8 Qf3 f8Q Qh1 Qfg8 Qhd5 Na4 Ba5 Nb6 Qh1 Rf8 Qhe4 Qe8 Qa8 Qc6 Qb7 Rb1 Qd5 Kb2 c1Q+ Ka1 Qcc4 Rbb2 Qdd4 Kb1 Qcc3 Rbc2 Qcc5 Qe8 Qcc7 Qc6
N4K2/2qq2PR/1p5R/b2Bn3/3rqR2/N3BB1k/Qp1r1p1N/1q1r2QN b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g3 axb4 g4 f3 Bh3 g5 Bg2 f5 Bf1 f4 h3 Bf5 gxf5 Nc6 h4 g4 Qc2 Ne5 Qb3 Nf7 Qd1 Ng5 hxg5 Bg7 Nc3 Bh6 Nb1 Bf8 Kf2 Kd7 e4 c5 d4 h5 a4 b6 f6 c4 a5 h4 f7 b3 e5 b2 g6 c3 d6 Ke6 g7 Kf5 e6 c2 d5 h3 d7 h2 a6 Qb8 d8N Rh7 e7 Nf6 e8B Bc5+ Be3 c1R f8R Bb4 d6 Qc7 d7 Rh4 a7 Qc3 Na3 Bd6 Nb7 Qc7 d8Q Qc4 Bh5 Bb4 Bg2 Qc7 Nc5 Ba5 Ne4 Rb8 Rh8 Nd7 a8N Ne5 Qg8 Rd8 Qa2 Rd7 Qf1 Rcd1 Ng3+ Kg5 Rh6 R7d2+ N1e2 Qd7 Rc1 Qc7 Rc4 Qd7 Qe1 Qc7 Nf1 Kf5 Rg1 h1Q Nh2 Qd7 Rh7 Kg5 Rc6 Kf5 Rch6 g3+ Kf1 f2 Bd5 Qe4 Rh1 Qc2 Kg2 Qcc7 Rf1 Rg4 Kh3 g2 Ng3+ Kg5 Bc4 g1Q Nh1 Kf5 Bd5 f3 Nc2 Rgd4 Na3 Ng4 Kh4 Qg2 Rg1 f1Q Qf2 Qe2 Rf1 Qd3 Qg1 Qb1 Be6+ Ke4 Kg5 Ne5+ Kf6 Qe2 Bf2 Kf4 Bd5 Qdb5 Ke6 Qee4 Kf6 Qcc6+ Ke7 Qc7+ Kf8 Qbd7 Ng4 Kg5 Be3+ Kh4 Nh2 Kh3 Rf2 Qe6 Rg2 f2 Rg4 Qec6 Rf4 Q6d7 Bf3#
r3nQqq/2PbR3/3BB1N1/B1NQn2B/k1qp4/5Rpq/3pn3/K1Q1R3 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Qd2 a5 Qd3 f4 Qd1 Be7 h4 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 g4 Bh3 Kf8 Bf1 Bg5 hxg5 Ke8 Kd2 h5 c4 d5 Kc2 Kd7 b4 f2 Kb2 a4 e4 g3 g6 f3 f6 h4 g7 h3 e5 h2 c5 d3 b6 Kc6 b5+ Kb7 f7 d4 f8R Rh4 c6+ Ka8 e6 Rg4 b7+ Ka7 b6+ Ka6 e7 Kb5 e8B Rf4 Bd2 Bf5 Bh3 f1Q Ba5 f2 Nf3 d2 Bh5 Nd7 b8B Ngf6 g8Q Ne8 b7 Ne5 Bd6 Bd7 c7 Qc4 Be6 f1Q Nh4 Qh3 Re1 h1Q Qc1 Qg5 Qf7 Qg8 Ng6 Rf3 Qf5 Ra3 Rf7 Q1h2 Re7 Qh1 Be2 Qhh8 Bh5 Qh3 Ra2 Rd3 Qe4 a3+ Ka1 Ka4 b8Q Re3 Rb2 a2 Rb3 Rf3 Qd5 Rf8 Kb2 a1N Rf3 Nb3 Qba8 Nc5 Ka1 Ncd3 Qd8 Nf4 Nc3+ Kb3 Ne4+ Ka4 Rf7 Ne2 Qf6 Ng7 Re7 Ra8 Qf8 Ne8 Nc5+
b2rNrNk/5q1R/5bB1/b2pRRp1/1Bq1QQp1/3R4/1b1bBK1P/N7 b - - 0 1 legal: proof: e4 c5 a4 b5 axb5 f5 d4 fxe4 b4 h5 c4 Rh6 g4 hxg4 b6 Rh3 b5 Nh6 b7 Nf7 Na3 Rh8 Nb1 Nd6 b6 Nb5 cxb5 c4 Ba3 Na6 Bc1 Nc5 dxc5 Rh7 Bg5 Rh4 Bc1 Rh8 b8Q Kf7 f4 Kg8 f5 d5 f6 g5 f7+ Kh7 c6 e5 c7 a5 b7 a4 b6 a3 Nd2 e3 Ne2 e4 Nc3 a2 Nb3 e2 Ba3 Ra6 Bb4 Bd7 c8B Be6 Qf4 Qf6 b8R Qg6 b7 Ra7 Qd4 Be7 f8R Ra8 Kf2 Bd7 Rd1 a1B Rd3 Qf7 Nb5 c3 Nd6 c2 Ne8 Bb2 Na1 c1Q Qe3 Bc6 Bf5+ Qg6 Rc8 Qc4 b8N Bef6 Nd7 Rg8 Rc7 Kh8 Rg1 Qf7 Bg6 Rd8 Rg3 Ba8 Rf3 Bfe5 Ndf6 Bec3 Re7 Bd2 Re5 e1B+ Kg2 Bdc3 Be2 Bed2 Qd4 e3 Qde4 Qh7 Rf7 Rf8 Rb7 Qf7 Ng8 Bd4 Rf5 Bf6 Re5 Qe6 Rg7 Qf7 Bd1 e2 Kg1 e1B Be2 Bdc3 Kg2 Bed2 Kf2 Qa7+ Qfe3 Qf7 Rff5 Bb7 Q3f4 Ba8 Bd6 Ba5 Be7 Bb7 Bb4 Ba8 Rh7+
8/2qP1kqR/Qprprr1p/1Q1n4/1RBB2B1/1qR5/5N2/KQR1n1Nr b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 a5 h4 gxh4 b4 axb4 c5 Nh6 c6 Ng8 Bb5 b3 Rh2 d6 Be2 Bg7 Rh1 Bc3 Bf1 Bd7 cxd7+ Kf8 Ne2 Kf7 Ng1 Bd4 d3 Ba7 d4 c5 Qd3 c4 Qd1 Bc5 dxc5 Kf6 Be3 Kg7 Bc1 Kf7 Kd2 e5 Kc3 e4 Kb2 e3 a4 e2 g4 e1R f4 h3 g5 b6 c6 h2 f6 Ra5 f5 Rd5 c7 Ne7 c8R Ra5 g6+ Kf8 f7 Na6 Bh3 Nb4 Nd2 Nbd5 Ne4 Qe8 Nf2 Ra7 a5 Nc3 a6 Na2 Bg4 Re6 Be3 Rc7 a7 Nb4 a8Q Nc2 Qa6 Rc6 Rc1 Ne1 Ka1 c3 Bd4 Nd5 g7+ Ke7 f8R h6 g8B c2 Qde2 Qh5 Qeb5 Qg5 Bf7 Rh7 Rh8 Qg7 Rc7 Rf6 Bg8 Re6 f6+ Kf8 Rb1 c1Q f7 b2+ Ka2 Qf6 Rc8+ Kg7 f8Q+ Kg6 Qe8+ Rf7 Rh7 Qg7 Qf8 Rf3 Qf4 Qc2 Qc1 Rff6 Qd1 Qc5 Rc1 Nf3 Rc4 Ne1 Rb4 b1Q+ Ka3 Qe4 Kb2 Qf3 Ka1 Qd3 Qb1 Qcc2 Ngh3 Qdb3 Rf1 h1R Ng1 Ng2 Rc1 Ne1 Rc7 Re2 B8e6 Re3 Bef5+ Kf7 Bd3 Ree6 Bc4 Rc5 Bce2 Rc4 Rb7 Rc8 Rc7 Qc6 Bd3 Qb7 R7c4 Rc6 R4c3 Qc7 Bc4
4RQ1q/b1pk1N2/1Qq2B1b/1bPb1B1R/N1r1p2q/6bQ/3p4/3KNQB1 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 e5 b4 axb4 Be3 b5 Bd2 Ra6 Bc1 Re6 Na3 fxe4 Nb1 e3 Bd3 e4 Bf1 Re5 dxe5 Ke7 Bg2 Kf7 Bf1 Ke8 f4 g5 f5 Na6 f6 Ne7 h3 Nf5 gxf5 g4 h4 Nc5 Qd3 Ne6 Qd1 Ng5 hxg5 Bc5 Rh2 Bd6 Rh1 Bf8 c4 h5 a4 d5 a5 g3 e6 b3 e7 e2 c5 d4 f7+ Kd7 e8N h4 f6 b4 a6 h3 a7 g2 a8Q b2 g6 h2 g7 d3 g8Q b3 Qa6 Rh3 Nc3 b1Q Qh7 b2 Nd6 Bh6 Qb6 Ba6 Na4 Qh8 Nf3 g1B Be3 Bb5 Bg2 Qa2 f8B+ Qf7 Bf1 b1B Be7 Qd5 f7 Ba2 f8Q Qc6 Nf7 Bd5 Bf6 Bf2+ Kd2 Bg3 Ne1 Be5 Kc1 d2+ Kc2 Bc3 Bg1 Ba5 Qc1 Rd3 Qb1 Rd4 Bh3+ Qe6 Bf5 Rb4 Nd3 e1B Kd1 Bg3 Ne1 Rc4 Qd3 Be3 Qh3 Bh6 Qbb8 Bb6 Qdf1 Ba7 Qb6 Bd6 Ra3 Bdf4 Rg3 Bd6 Rg5 Bg3 Rh5 Bhf4 Bgd4 Bh6 Rg1 h1Q Rg2 Bf2 Rg6 Bg3 Bg1 Qh2 Qhg2 Qh4 Qh3 Be3 Rgh6 Bg5 Rg6 Bh6 Bd8 Kc8 Rf6 Qd7 Re6 Qc6 Bf6+ Kd7 Re8+
1N5K/1N2np1n/1PBr1pk1/1Nb1p1B1/1rb1BBQ1/2pR3R/7Q/bqQ5 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 Kd7 a4 Nf6 axb5 Ba6 f4 Bb7 f5 Bc8 d6 Ng8 f6 Ke6 d7 gxf6 Ra5 Ke5 Ra1 Kd6 d4 Ke6 g4 h5 g5 c6 Qg4+ hxg4 e5 Kf5 d5 Qc7 Nf3 Kg6 Ng1 Qd6 exd6 Kh7 Nc3 Kg7 Nb1 Kg6 Kf2 a5 Kg3 e6 d8N a4 b4 a3 h4 c5 h5+ Kf5 Kh4 c4 d7 a2 g6 c3 d6 g3 h6 g2 Kh5 Ra6 b6 Nc6 h7 Na7 b5 Bh6 b7 Rc6 b8B Rb6 g7 Bd2 Nf3 g1B Nb7 Bd4 d8Q Bg5 d7 Bde3 Bg2 Bc5 Rh3 Ra6 b6 Be7 Ne5 Bc5 Bc6 Bf4 Na3 Bd2 Nb5 Ne7 Qg8 Ra4 d8Q Rb4 Nd7 Ng6 Bf4 e5 Kh6 Nf8 Nb8 Be6 Rb1 Bde3 Qd1 a1Q Bd2 Qb2 Qc1 Bc4 Ra1 Qb1 Bg5 Bed4 Bdf4 Nc8 Ra2 Be3 Rd2 Ne7 Rd3 Nd7 Qc8 Rd8 g8B Bd2 Kg7 Bde3 Qe1 Bc1 h8Q Bb2 Qc1 Ba1 Qh5 Re8 Kh8 Rd8 Qe2 Kg6 Qh2 Nf8 Qg4 Nh7 Qe3 Nf8 Qgf3 Rd6 Qc1 Kf5 Bh7+ Ke6 Bhe4 Nh7 Bed5+ Kf5 Qg4+ Kg6 Be4+
QqRB1Knb/5pN1/1p2NQp1/bQ5B/r1nkP3/pr6/3b2RQ/2N4R b - - 0 1 illegal: No possible last move
1qqQ1B2/1B3p2/1N1N1rB1/1K1R1np1/1RN4b/1pkQp1nR/2bb1RP1/8 b - - 0 1 legal: proof: f4 b5 e4 d5 exd5 g5 d4 a6 c4 Qd6 c5 Qf6 d6 Qg6 d5 Bg7 f5 Bd4 fxg6 Bf2+ Kd2 Kf8 b4 a5 h4 axb4 d7 Ra6 h5 Rd6 h6 Nxh6 cxd6 Ng8 Kd3 Kg7 d8R Kf6 a4 Ke5 d7 h5 d6 c5 g7 b3 a5 b2 a6 b4 Kc4 h4 a7 h3 a8B h2 Be4 Nc6 Ra3 Nd4 Ra1 Nf6 g8R Rh6 Qd3 Bh4 Nc3 b1Q Ra2 Nf5 Nd5 Nh5 Rf2 Rf6 Nb6 Nhg3 Kb5 c4 Bb7 c3 Ba3 c2 Rh8 c1B Nf3+ Ke6 Rh7 Bd2 Ne5 b3 Bc5 Qc2 Nec4 Qc3 Be2 Qc1 Rd1 h1Q Bh5 Qh2 Bg6 Qc3 Rg8 Qc1 d8Q Qc3 Nb2 Ke5 d7 e6 Bf8 Qc1 Qf3 Kd4 N2c4 e5 Qe4+ Kc3 Rhh8 Be3 Rd5 Bd2 Qe2 e4 Rh7 e3 Qd1 Ne2 Rgh8 Bg3 Rh3 Bh4 Rh7 Qb8 Rh8 Bg3 R8h4 Qc2 Rhd4 Bh4 Re4 Neg3 Qe2 Qc1 Red4 Kc2 Qd3+ Kd1 Na3 Qd6 Qc4 Nh6 Qe7 Qb8 Qc3 Qc2 Rb4 Kc1 Qc4 Kb2 Qe2 Qf5 Nac4+ Kc2 d8N Bd7+ Bc6 Kc3 Nb7 Qg4 Qe8 Bf5 Nbd6 Bc2 Qd8 Qgc8 Bb7 Nhf5 Qd3+
6b1/3pR2p/4qP1N/NnQ1b2R/bB2KNp1/1Nr5/B2p2R1/qrQB2k1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 Na3 g5 Nb1 f5 gxf5 Nc6 h3 Ne5 h4 g4 Nc3 Nf7 Nb1 Ng5 hxg5 Qe7 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 c4 Kd6 b4 Ke5 e4 a5 b6 a4 c5 d3 b5 Kd4 g6 f3 b7 a3 b8R a2 f6 Bh6 g7 Ra6 c6 Ne7 g8N Ng6 b6 Ra7 b7 Nf4 c7 Ra6 e5 Rc6 e6 Qf8 e7 Ne6 e8B Rd6 Nh3 Bg5 Nh6 Rg8 Ba3 Qe7 Qc1 Rc6 Nf4 Rc3 Bf7 Qd6 Kg3 f2 Be2 f1B Nd2 Ke3 Bb4 Nd4 Rh5 Nb5 Nb3+ d2 Bd1 Bc4 Ra8 Qb6 b8N Bb7 c8Q Qe6 Nc6 Rf8 Qc7 Rb8 Nca5 Bc6 Bg8 Rb7 Re8 B4d5 Rb1 a1Q Re7 Bh4+ Kh2 Kf2 Qd6 Kf1 Qc5 Bf2 Bf7 Be3 Kg3 Kg1 Rh2 Rc4 Rf2 Bd4 Rb2 Rb6 Rc2 Rb8 Rc3 Rb7 Re3 Rc2 Re5 Bc3 Rh5 Be5 Kh4 Rc3 Kg5 Qd6 Kf5 Rb8 Be8 Bg8 Bf7 Rb7 Bd5 Qe6+ Ke4 Na3 Nd4 Ba4 Ba2 Nb5 Ndb3 Rc7 Qa3 Rc1 Qb2 Rb1 Qbc1 Rc6 Qe3 Rc2 Qc5 Rc3 Rg2+
Bq3n2/b1PR2N1/pp1Q2r1/2Q2qBp/3b2kp/2R4N/q2QR3/2BBK2n b - - 0 1 legal: proof: e4 f5 exf5 c5 d4 cxd4 h4 g5 a4 gxh4 b4 b6 c4 Nf6 a5 Ng8 a6 Bb7 axb7 Na6 Ra2 Rc8 Ra1 Rc5 bxc5 Nb8 g4 Kf7 f4 Kf6 c6 d5 c5 h5 g5+ Kg7 c7 e5 c8R a6 c6 d3 f6+ Kg6 f7 Kf5 g6 d4 g7 e4 Be2 e3 Nh3 Rh6 Nd2 Bc5 f8Q+ Nf6 g8B Rg6 Ne4 Nd7 Qd6 Ng4 b8B Nf2 Ra2 Nf8 Qd2 Qg5 Rg1 Nh1 Bd1 e2 Ng3+ Kg4 f5 Qf4 f6 Qf5 Qe5 Bd6 f7 Bc5 Bc7 Bd6 Bd8 Bb8 c7 Ba7 Qc5 Qf6 Qdc3 Qg5 Ba4 Nh7 f8Q Qf6 Qe8 Nf8 Bd5 Qe6 Bdg5 Qf7 Kd2 e1B+ Kd1 d2 Qee7 Qe6 Ba8 Bf2 Rd8 Be3 Rc2 Qa2 Rg2 Bf2 Ke2 d3+ Kf1 Be3 Re2 d1Q+ Qe1 Qd2 Rc3 Qdc2 Nf5 d2 Ng7 d1Q Qee5 Qdd5 Qed6 Bd4 Qd2 Qb7 Rd7 Qb8 Ke1 Qf5 Bd1
N5r1/1p6/1K4QR/P1r1B2Q/QRBnp3/1p1b2b1/2kqQN1p/2Nb1R1q b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ne5 h5 Ng6 hxg6 Ra8 Kf2 Kd7 a4 Kd6 d4 h5 a5 c5 g7 e5 f6 e4 g6 h4 f7 b3 Nh3 c4 Ra4 f3 Ke3 c3 Bc4 f2 Rb4 f1B Nf2 c2 Qe2 h3 Nc3 Qc7 Bb2 Qd8 Na2 Nf6 g8Q Qe7 g7 Nh5 Qh7 Qh4 g8Q Nf6 Qhh5 Bf5 Nc1 Bg4 Qgg6 Rc8 Rh2 Be7 f8R Rc5 Rf7 Rg8 Rh1 Kc7 d6+ Kc6 d7 Bd6 d8Q Nd7 Qe8 h2 Rh7 Qd8 Rh6 Bf3 Qd2 Bd3 Rf1 Bd1 Qde2 Rf5 d5+ Kc5 Ba1 Ne5 Qa4 Nf3 Be5 Bb8 d6 Nd4 d7 Rg5 Bf6 Bg3 Be5 Rf5 Kd2 Qg5+ Kc3 Qf4 d8N Qf3 Ba6 Qh1 Ne6+ Kd5 Nc7+ Kc5 Na8 Kd5 Na2 c1Q+ Qc2 Qe3 Nc1 Qg5 Qce2 Qe3 Kb2 Qd2+ Ka3 Kc5 Qae8 Kd5 Ka4 Rg5 Rb5+ Kc4 Rb4+ Kc3 Bc4 Kc2 Qd7 Nc6 Kb5 Nd4+ Kb6 Rf5 Qa4 Rg5 Bd6 Rc5 Be5
4kqn1/p4bR1/R1RprB1Q/1Q2pn1B/np4B1/1KQ2Q1b/1P2N3/2q3N1 b - - 0 1 legal: proof: h4 g5 d4 gxh4 e4 b5 c4 c5 a4 cxd4 c5 f5 exf5 Na6 a5 Rb8 c6 Rb7 c7 Rb6 axb6 Bb7 c8B Bh6 Qe2 Bf4 Qd1 Bc7 bxc7 Nb8 Kd2 h5 Kc2 e5 g4 d3+ Kb3 d2 f4 b4 g5 h3 f6 h2 f7+ Ke7 f8Q+ Ke6 g6 h4 g7 h3 Qc5 Kf7 f5 d6 f6 Rh5 Ra6 Rh6 Qb5 Nd7 Qf3 d1N Bg5 Ne3 Nc3 Nf5 Be2 Ke8 Bd1 Qe7 Nce2 Qf8 Rc6 Nb6 Be6 Ng3 Bg4 Bc8 Bh4 Nf5 f7+ Kd7 Bd8 Re6 Bf6 Na4 Bh5 Qe8 f8Q Qe7 Bg5 Qe8 Qf6 Qf8 Bg4 Ke8 Qh6 Nge7 g8R Bd7 Rg7 Ng8 Qe3 Bc8 Bf6 Bd7 Nf3 Bc8 Re1 h1B Nfg1 h2 Qf3 Bg2 Rf1 h1Q Re1 Bh3 Rf1 Qe7 Ra6+ Bd7 c8Q+ Qd8 Qcc1 Qe7 Qcc3 Qf8 Qfd3 Qc6 Rf4 Qc5 Qf3 Qe3 Rc4 Qc1 Rc5 Bc6 Qbc4 Bd5 Rcc6 Re7 Bh5+ Bf7 Bg4 Re6 Qb5 Bf1 Bc2 Bh3 Be4 Nh4 Bg6 Nf5 B6h5
Qq5R/1pNRrQ2/4p1N1/1pb1KbBB/b2Nbp2/N1Pk4/n7/rB1R4 b - - 0 1 illegal: No possible last move
3R1b1N/p2qRppb/RQb5/1p6/1n1b1Q1B/2rQN1K1/BN1RP3/k5b1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 c4 Na6 a5 Rb8 f5 d5 f6 Rb6 cxd5 c4 axb6 Nc5 g4 hxg4 bxc5 exf6 Na3 f5 Nb1 f4 Kf2 Ke7 h4 Kf6 d4 c3 d6 f3 h5 c2 h6 Ba6 d5 Ke5 h7 Qa8 d7 Bd6 d8Q Bc7 d6 Qd5 c6 Nh6 d7 Bb8 b7 Nf5 c7 Nd4 c8R Nc6 Rc7 Nb4 Nd2 Kd4 Nc4+ Kc3 Bg5 c1B Bg2 Bb2 Nh3 Re8 h8N Re3 Kg3 f2+ Bf3 f1B Nf4 Bh3 Ng2 Qe6 Qd2+ Kb3 Rad1 Ka2 Bh4 Ra3 Qd3 Bd4 Rhe1 Rc3 Nge3 Bg2 Bd5 Be4 Rf1 Bh7 Rf6 Qe8 Rd2+ Ka1 Nb2 Qe7 Kf4 g3 Ba2 g2 Kg3 g1B Rd6 Qe6 Qf6 Qe7 d8R Qe8 Rcd7 Bc7 b8Q Bb7 Qe5 Bh1 Rg6 Bd6 Qf4 Bf8 Re7 Qd7 Ra6 Bc6 Qb6
1r1r2Bn/r2Pnnp1/3BKRB1/5Nq1/2QqQ3/p1p2p2/6RB/1k1NN1R1 b - - 0 1 legal: proof: c4 b5 g4 h5 d4 hxg4 a4 d5 axb5 dxc4 e3 Rh6 Qd2 Rh7 Qd1 Rh8 d5 e5 Qf3 e4 Qd1 Bc5 f3 Bd4 exd4 e3 Nh3 Bf5 Ng1 Be4 fxe4 Rh4 Bg2 Rh6 Bf1 Rh8 Ke2 Ke7 h4 Kd6 b4 c5 b6 a5 b7 f5 h5 c3 Kd3 c2 Kc4 e2 b5 e1Q b6 f4 e5+ Ke7 e6 Kf6 e7 Kf5 e8B Ke4 h6 g3 d6 a4 d5 a3 h7 g2 d7 Nc6 b8B Qe3 b7 Nce7 d6 Nc8 Nc3+ Ke5 Ra2 Qc7 d8R Qe2+ Qd3 Nce7 d7 Nh6 Nd1 Qd2 Bg6 Ra7 Rf8 Qd6 Rf6 Rd8 h8Q Nf7 Qe8 Nh8 Bc7 Qe3 b8N Qg3 Bd2 c1N Bb4 Qg5 Qb3 Nd3 Rd2 Qf5 Nc6+ Ke4 Nf3 g1R Ne1 f3 Rg2 Qf4 Nd4 Ne5+ Kb5 c4 Kc5 c3 Kd6 Qg5 Bc4 Rf1 Bb8 Rf2 Bg8 Rb2 Rhg1 Qh4 Bh5 Qfg5 Qc4 Nef7+ Ke6 Qf2 Nf5+ Qd4 Bh2 Rb1 Qc7 Rb3 Bbd6 Rbb8 Nc2 Kd3 Bg6 Qf2 Qc5 Kd2 Qd4+ Kc1 Qc4 Kb1 Ne1 Qd4 Bh5 Ne5 Qg6 Nef7 Qh7 Qdg4 Bg6 Q4f4 Qh4 Qd4 Qe4+
1QR1Q2K/2RpNB2/k2N4/3pQb1p/q1q1r1Bb/Q4NPp/r5q1/3bB3 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 g5 a4 gxh4 axb5 c6 d5 cxd5 Bd2 e5 Bf4 Na6 Bc1 Nc5 Kd2 Ne7 Ke1 f4 f3 Nf5 exf5 e4 Nh3 e3 Ng1 Ne4 fxe4 Bg7 Ra6 Bh6 Ra1 Bf8 Ke2 a5 Kf3 h5 c4 a4 b4 e2 e5 e1Q f6 h3 e6 a3 b6 a2 g3 Qd2 b7 Bg7 b8Q Qc7 e7 Qb7 c5 Rh6 b5 Ra7 c6 Qa5 c7 Bh8 b6 Qa4 Be2 Ra8 Nd2 Ra5 Nc4 Qc2 Qd4 Qb1 Bd2 Qa7 b7 Qb4 Rc1 a1Q Qe5 Qab2 Be1 Ra2 Qa8 Bg7 b8Q Qaa4 Qa6 Qbc2 Qad6 Qbd2 Qa3 Rg6 Rh2 Rg4 Bd1 Qdb4 Rf2 Qcb2 Rfc2 Bh6 Be2 Bg5 Rc3 Bh4 Bd1 Kf7 e8B+ Kf8 f7 Ba6 Nd6 Bd3 c8N Bf5 Rc7 Qc4 Ne7 Qbc2 Be2 Q2e4+ Kf2 f3 Rc8 Qec2 Ke3 f2 Nf3 f1B Bd1 Qg2 Be2 Qca6 R1c7 Rb4 Bd1 Bc4 Kf4 Bb3+ Nd4 Qc4 Bg4 Be4 Nf3 Bd1 Qg5 Bf5+ Ke5 Qc1 Kf6 Re4 Qab2 Qcc4 Qa3 Be6 Kg6 Bf5+ Kh6 Be6 Kh7 Bf5+ Kh8 Qh1 Ng8 Qg2 Nf6 Ke7 f8Q+ Ke6 Ng8 Qc1 Ne7 Qcc4 Nh2 Ke5 Bf7 Kd4 Qac1 Kd3 Qe8 Kd4 Nc6+ Kc5 Nf3 Be6 Qe5 Bf5 Qa8 Kb6 Qb8+ Ka6 Ne7 Re3 Qcc3 Re4 Qa3
4KQ2/p2N2b1/2RN2n1/n2QQ3/kB1B2BB/1qR3pP/p2p4/Nq1qb2b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 Be3 g5 Bc1 f5 exf5 g4 Bd3 h5 Qf3 Na6 Qd1 Rb8 Bb5 Rb6 Kf1 Rg6 Bd3 Rg5 hxg5 h4 Ke1 h3 Bc4 h2 Bf1 Rh3 gxh3 Qc7 Qd2 Qb6 Qd1 Qd8 Ke2 d5 Kd3 Kd7 f4 Kc6 b4 Kb5 c4+ Kc6 b5+ Kc5 f6 Kb4 c5 e5 g6 a3 c6 a2 c7 g3 f7 Qd6 g7 Bg4 c8N Qg6+ f5 Qh7 b6 Bc5 f8B Ka5 b7 Nf6 b8Q Nh5 g8Q Qf7 f6 Qb7 f7 Be6 Be3 Bd6 Be2 Qa8 Nd2 Qb7 Nb3+ Ka4 Bg4 Qb4 Qc7 Nb8 Be7 Nc6 f8B Na5 Nf3 Qb6 Rf1 h1Q Bh4 Bf7 Rc1 e4+ Kd2 d3 Kc3 Qg1 Ne5 Nf4 Rf3 Ng6 Na1+ Qb3+ Kd4 Be8 Rf6 Bc6 Rc3 Qf1 Bf2 e3 Be7 e2 Qf8 Ba8 Qb8 Bc7 Kc5 d4 Ra6 Bb6+ Kd6 Bh1 Kd7 Bc7 Qd2 Qfb1 Bb4 e1B Ke8 Bd8 Nd7 Bf6 Rd6 Bg7 Qg5 d2 Qgf5 d1Q Qd5 d3 Bd4 d2 Rdc6 Q3c2 Qbe5 Qcb3 Nd6
2QB4/K6Q/N3N3/1p1B2b1/2Pppr1k/p1r1Q1n1/n4Q1r/BnR1N1Rr b - - 0 1 legal: proof: a4 b5 h4 c5 e4 g5 d4 f5 exf5 cxd4 Qf3 gxh4 Qe2 Bb7 Qd1 Qb6 Ra2 Bd5 Ra1 Bb3 a5 a6 axb6 a5 Rh2 a4 Rh3 a3 Rh1 Ba4 b3 Nf6 bxa4 Ng8 Kd2 Kf7 Kd3 Kf6 c4 e5 f4 d5 g4 h5 b7 h3 g5+ Ke7 a5 h4 g6 Kf6 g7 h2 a6 h3 a7 Ne7 g8Q Bg7 Ne2 Ng6 Qb3 Rh5 Rg1 h1R Nd2 h2 Bg2 Bh6 Qh7 Nh4 Bb2 Nf3 Rac1 Na6 b8N Rg5 Ba1 Nh4 Nf3 Rg8 Ne1 Bg5 Bf3 Nc7 Na6 Raf8 a8Q Rh8 Be4 Nf3 Qc8 Nd2 Qc3 Nb1 Qd2 Ne8 Qe3 Nd6 Bf3 Rf7 Bg2 Ne4 Bf3 Ng3 Be4 Ke7 f6+ Kd6 f5 Rg8 Kc2 d3+ Kb3 d2 Kb4 d1N Ka5 d4 Kb6 Ndc3 Bd5 e4 Nf4 Ke5 Ne6 Rff8 f7 Kf6 Kb7 Na2 Ka7 Rh8 Rg2 Rf1 Rg1 Rfg8 f8B h1R Bc5 Rf4 Bb6 Rg6 Bc7 Rgh6 Ba5 R6h2 Bb6 Rc2 Bc7 Rc3 Bd8+ Ke5 f6 Rh2 Qe7 Kf5 f7 Kg4 f8Q Rh1 Qef7 R8h2 Q8e7 Kh4 Qed7 Rg4 Qff2 Rf4 Qh7+
bQ2BKR1/b4N2/2pQ4/2n1R2B/2b2Rrk/1nP1Qppp/R3Nn2/2N4b b - - 0 1 legal: proof: f4 e5 fxe5 a5 b4 axb4 e6 d6 e4 Qf6 g4 Qf4 e5 Qg5 Bb2 Qd8 e7 Kd7 e6+ Kc6 Be5 dxe5 h4 f5 g5 b5 Ne2 f4 Rg1 f3 Rh1 Qd3 Ng1 Qf5 Rh2 Qf6 gxf6 g5 Rh3 g4 Rh1 Nh6 Rh3 Rg8 Rh1 Rg5 hxg5 Ng8 Be2 Ba6 Bc4 Bc8 Bf1 Na6 Kf2 Bg7 Be2 Bd7 Bf1 Nh6 Ke1 Rh8 Bg2 Bc8 Qe2 Bf8 Qd1 Nb8 Bf1 Ng8 Kf2 Kd5 Kg3 Ke4 Kh4 Kf5 Kh5 e4 e8Q g3 d4 e3 a4 e2 d5 e1N f7 b3 e7 b2 d6 b4 g6 b3 d7 Nd3 d8N Na6 a5 Nac5 a6 Nf2 a7 Nh6 a8Q Rg8 Nc3 b1B g7 b2 Qb8 Ba2 Bc4 b1B Nce2 c6 c3 Bb7 Qdd6 Bd3 Nc1 Bf1 Rh4 Ba8 Nge2 Bg2 Re4 Bh1 Bd5 Bb3 Ra2 Bc4 Be6+ Kf6 Re5 Nf5 Bd5+ Ne6 Be4 Nd4 Kh6 Nb3 Bd3 Nh3 Bg6 Nf2 Qd3 Nec5 Bh5 Na1 Qed7 Nab3 e8B Bd6 Qda7 Bc7 Qe3 Bb6 Qac7 Ba7 Re4 Rh8 g8R Kf5 Kg7 h6 Qd3 Kg5 Re5+ Kh4 Qe3 Rh7+ Kf8 Rg7 Qd6 Rg4 Ke7 Bd5 f8R Bc4 Bhg6 h5 Rf4 Ba6 Kf8 Bc4 Re6 Kg5 Ree4 h4 Re6 h3 Bh5+ Kh4 Nf7 Nfd3 Ree4 Nf2 Re5
4R3/1bkBN2p/B3Q2b/1RpBQ1p1/n2pn3/N2Q3K/2P1b3/RBn3rn b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 a5 d5 c5 Bf4 Ra6 Bd6 Rc6 dxc6 Qc7 h4 Qa7 h5 Qc7 Be5 Qd6 Bg3 fxg4 Bh2 Qg6 Bd6 exd6 hxg6 d5 Rh2 d4 Rh3 Be7 Rh1 Bf8 f4 Kd8 Kf2 d5 Kg2 d3 e4 d2 b4 g3 b6 d4 g7 a4 f5 a3 b7 a2 f6 Na6 b8Q Bd6 f7 Be5 f8R+ Ke7 c7 Kd6 b5 Bf5 c8B+ Nc7 b6 Nh6 g8B Bg7 e5+ Kc6 e6 Be4+ Kh3 g2 e7 Ne8 b7 Ng4 Nf3 Bh6 Na3 Nd6 e8B+ Kb6 Qe2 d1B Qd3 Be2 Bef7 Bd5 Re8 Ne4 Qa8 Kc7 Nh4 Bc6 Rb1 a1N Ng6 Nb3 Ne7 Nc1 Rb5 Bd5 Qa6 g1N+ Kg2 Bc6 Ba2 Ngf2 Bgd5 Rf8 Bb1 Rf5 Bd7 Rf4 Rh2 Nh1 Rh5 Rg4+ Kh2 Nf3+ Kh3 Nc3 Rh4 Rg1 Re4 Bd1 Re1 Be2 Rd1 Na4 Qb6+ Kd6 Qa6 Nd2 Qb6 Ne4 Qa6 Ke5 b8Q+ Kf6 Qac8 Ba8 Qbg3 Bb7 Qe1 Ke5 Qc6 Nec3 Qe6+ Kf4 Qdg6 Bd3 Rb3 N1e2 Ba2 Bb5 Ra1 Nc1 Bb1 Bd3 Qeg8 Bda6 Be2 Ke5 Qe4+ Kd6 Qge6+ Kc7 Qd2 Nb5 Q4e5+ Nd6 Bf1 Be2 Rb2 Bd1 Ba6 Bh5 Qd3 Be2 Q5f5 Ne4 Rb5 Bf3 Qff6 Be2 Qfe5+
1k1r4/R1R1q3/2q1pb2/KQBpr2N/1p1P3Q/1r5R/BQ1b2Qp/3B2Nr b - - 0 1 legal: proof: e4 b5 c4 f5 b4 fxe4 g4 a5 Be2 Ba6 Bd3 axb4 Bf1 b3 Bg2 b4 Bf1 Bb5 cxb5 Ra3 Qe2 Ra4 Qd1 Ra8 h4 g5 f4 Nc6 f5 Nh6 f6 Nf5 gxf5 g4 Rh3 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 a4 c5 b6 h5 a5 c4 a6 c3 g6 d6 b7 Kd7 b8Q b2 f7 g3 f6 e3 g7 c2 g8B e2 a7 h4 Rh3 g2 Nc3 b1R Ne4 Bh6 f8Q Rh7 f7 Kc6 Ng3 Rg7 Qb5+ Kc7 Nh5 Rg4 Qg7 Be3 f8R Bb6 Rf7 Rg5 Qb2 Re5 d4 Rb8 Kd2 e1B+ Kd3 Bd2 Kc4 Qd7 a8Q Rd8 Qaa2 Kb8 Qg4 Qb7 Be2 e6 Bh7 Bc7 Bd1 d5+ Kb3 Bd6 Ka4 Be7 Ka5 Beg5 Rc7 Bf6 Rh1 h3 Qh4 Bc3 Bh6 c1Q Rh2 Bd2 Bf8 Qc6 Bhc2 Ka8 Bb3 Kb8 Qc1 Rb2 Bc5 Rb1 Qac2 Rb2 Ba2 Rb3 Nf3 g1R Q1b2 Rh1 Ng1 Bf4 Rf2 h2 Rf3 B4g5 Qg2 Bd2 Rh7 Kc8 Rh3 Qe7 Rc1 Qed6 Ra7 Qe7 Bb6 Kb8 Rc4 Qa8 Rc7 Qc6 Bc5+
R3n3/2R4B/BP1bB2Q/1kppr3/4pN2/1N1nb3/ppqrR1QR/5K1N b - - 0 1 illegal: No proof kernel
1KB3B1/4n1r1/P2p3B/1kqp3Q/3N4/1bRpQQRN/2pn1Npb/b2Q4 b - - 0 1 illegal: Other
1RR2Qkn/1BrNr3/p1B2R2/2P2qn1/4p1NK/2p3pp/1Q3RQN/b4n2 b - - 0 1 illegal: No possible last move, all moves rejected
2N1R1R1/4R1bb/KQ1P1q1N/pB3RB1/p2p2Q1/1r2q1Bk/1r2pQ1p/6r1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 Qe2 gxh4 Qd1 f5 exf5 d4 d3 c5 Qg4 Nf6 Qd1 Nd5 Nc3 Nc6 Nb1 Ne5 cxd5 c4 Ne2 c3 Ng1 Nc4 dxc4 Qa5 Ne2 Qb6 Ng1 Qd8 Ke2 Kd7 Kd3 a5 g4 h5 f4 e5 b4 h3 g5 h4 b5 c2 b6 h2 c5 h3 Kc4 e4 Kb5 e3 b7 Ra6 b8B Ke7 c6 Ra8 g6 Kf6 c7 Bc5 g7 Ra6 g8R Rd6 Qg4 Be6 c8Q Qf8 Nc3 Rh4 Qa6 Qf7 Ne4+ Ke7 f6+ Kd7 f5 Rc6 Bg3 Qf8 f7 Bb6 f6 Bc7 Ne2 Bf5 Nd6 Rc3 Nc8 Be5 d6 Ke6 Qb6 Rb3+ Ka6 Rh8 Rg1 h1R Rg2 h2 Rf2 Qh6 f8Q Rg1 f7 Bg7 Bd2 Qg5 Re1 c1Q Rf4 Qg6 Re4+ Kf6 Re8 Rb2 Re7 Rh3 Bf2 Qb1 Re8 Rh8 Qf4 Rh4 Ng3 Qc1 Bb5 Rh3 Qe4 Kg5 Qf3 Be4 Nf5 Rhg3 Nh6 Kh4 Qd1 Kh3 Qe2 Rf3 Bg3 Bb1 Qf2 Qe6 Qe7 Qc3 f8R Bh7 Rf5 Qf6 Qe4 Qa3 Rc1 e2 Rc7 Qc3 Bg5 Qc1 Qf4 Rfb3 Rce7 Qe3 Qg4#
bb4N1/4r3/ppB1k1q1/B1pB1N2/1R1r1Q2/K1p3B1/Rp2p1Pn/3NRQ2 b - - 0 1 illegal: Other
8/3k2pn/N1pn1pp1/p2Nb1r1/3p2QN/2RKB1r1/1B1BR1P1/N2RQ1b1 b - - 0 1 legal: proof: e4 e5 a4 b5 d4 bxa4 dxe5 Nf6 b4 Ke7 c4 Nh5 c5 Rg8 b5 Rh8 e6 Nf6 Bd3 Ke8 f3 Bb7 e5 Ng8 Bg6 Be4 fxe4 hxg6 Bd2 Qe7 Be3 Qd6 Bc1 Qb6 cxb6 Rh4 Bd2 Rh5 Bc1 Rh8 Ke2 a5 h4 d5 e7 a3 b7 c6 h5 d4 h6 a2 h7 f6 b6 Nh6 Na3 Ng8 Kd3 Na6 b8B Nc7 b7 Nb5 Rh3 Ra6 Nc2 Nd6 Qe1 Kd7 e8N Kd8 e6 Nh6 e5 Ra7 e7+ Kd7 Bb2 Nc8 Rd1 a1B Nc7 Ra8 e8R Ra6 e6+ Kd6 e7 Kd7 Nf3 Nf7 Nd5 Ra8 Bf4 Ncd6 b8B Ng5 Nh4 Ra6 Rf3 Rb6 Bd2 Rb5 Re3 Rc5 Re2 Rb5 Bc7 Rc5 Rb8 Rb5 e8N Rc5 Rb3 Be7 Bbc3 Bb2 Na1 Bc1 Bb2 Bd8 Bb8 Bc7 Rc3 Rb5 Ba7 Bb8 Nec7 Re8 h8Q Nh7 Na6 Re3+ Kc2 Bc7 Bb8 Rg3 Be3 Rc5 Kd3 Bd2 Nf4 Rcg5 Nd5 Nf7 Qg8 Be5 Bd6 Bc1 Bb4 Nd6 Qh8 Nf8 Qh5 Nh7 Qf3 Bd2 Bf4 Be3 Qg4+ Rf5 Bh6 Bf2+ Be3 Bg1 Qf3 Rfg5 Qg4+ Ke8 Rcc1 Kd8 Bd2 Ke8 Rc3 Kd8 Qf4 Kd7 Qg4+
1N3R2/qN5Q/n6r/2BK1N2/rQ2nNbn/2rQR1bP/2k1r1Bq/r4R1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 c5 e4 f5 b6 a5 b5 g5 b7 a4 b6 c4 h3 a3 Rh2 c3 Qe1 g3+ Kf3 g2 Nd2 a2 Qe3 g4+ Kf2 f3 Rh1 f4 Ne2 g1N Bg2 c2 Qd3 Ra4 Nf1 Qd7 Nfg3 Na6 b8N Nf6 b7 Rh6 Be3 c1R Qb1 Rc3 e5+ Kc7 e6 Kd6 e7 Ne4+ Kf1 f2 e8R Be7 Rf8 Bh4 Qc2 Qe7 Re1 a1R Qb1 Nf3 Nf5+ Kc7 Qd3 Kb6 d6 Ka5 d5 Kb4 d7 Kb3 d8Q Bg3 d6 Nh4 d7 Qc5 Qa5 Qa7 d8N Be6 Qc7 Bd7 Qd5+ Kc2 Bc5 Be6 Qh7 R1a2 Ng1 Bd7 Ke2 f1R Rb1 Rd1 Rb3 Rda1 Qd6 Rcc4 Qd5 f3+ Ke3 f2 Ne2 f1Q Nf4 Bc8 Rd3 Rc3 Qc4 Qd1 Kd4 Qg1+ Kd5 Qh2 Rc1+ Kb2 Bf3 Nd6 Nd4 Bf2 Nd7 g3 Re3 g2 Rf1 g1Q Bg2 Bg3 Qcd3 Ne4 b8Q+ Rb6 Nf5 Qgh1 Nd6 Kb3 Qb7 Re2 Nb8 Bg4 Nf5 Kb2 Bb4 Rh6 Bc5+ Rb4 Qbb5 Kb3 Qa5 Rba4 Nb7 Kb2 Qc4 Kc2 Qab4 Rh5 Qcb5 Rh6 Qd3+
1bN2rb1/Q1rnrb2/2B5/NRnrR3/q3N1qQ/3k2RP/3Br3/1K1nBN2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Ke7 d4 Kf6 Kd2 Kf5 Kc2 Ke4 e3 a5 b6 f5 b5 g5 d6 c5 d5 g3 d7 g4 b7 f3 h3 c4 b6 f4 d6 c3 Bc4 f2 Qd2 f1B Ba6 g2 Qd1 a4 Ba3 f3 Rh2 f2 Ne2 g1Q Qe1 g3 Bb5 g2 Bc1 a3 Bd2 Ra5 Bc6+ Rd5 Ra2 Na6 b8Q Qe7 d8B Qh4 d7 Bd6 b7 Nf6 Qa7 Bb8 Ba5 Rf8 d8N Be6 Bb4 Bg8 Ng3+ Ke5 e4 Nd7 Ra1 Bc4 Nf1 a2 Kc1 c2 Nc3 Qg4 Rh1 Qh2 Rg1 Nac5 Nf7+ Kd4 e5 Qhf4 e6 Kd3 e7 Qe4 Rb1 a1R e8R Ra2 Nd6 Bb3 Ba5 Qa4 Re5 Rb2 Nc8 Bf7 Nh2 f1N Qh4 Ne3 Ne4 Nd1 Nf1 Ra2 Be1 Bc4 Rb5 Bb3 Rh1 g1R Bad2 Rg2 Rh2 Re2 Rf2 Rb2 Rff5 Ba2 Rg5 Rb4 Nc3 Rf4 Ne4 Rf6 Rg8 Re6 Rg6 Re7 Rg8 Qf5 Rg2 Qg4 Rg3+ Ne3 Kb2 Bg8 Ka1 c1R+ Kb2 Rc2+ Ka1 Bc4+ Kb1 Ne6 Ng5 Bd6 b8N Rc5 Bf3 Nd1 Nc6 Bb8 Na5 Rc7 Nh7 Ba2+ Ka1 R2c5 Nf6 Bb3+ Kb1 Bc4 Rh5 Rce5 Rf5 Nec5 Rh5 Bcf7 Bc6+ Ne3 Ne4 Rd5 Rg2 Nd1 Re5 Be6 Rg1 Bef7 Rg3+
q3qbk1/nQ4N1/QB2R3/3r1r1b/2B4R/P3Nq1B/2Nnb2K/r1Rq1qB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 Kf2 e5 d4 b5 g4 h5 Kg2 c5 a3 c4 f6 h3+ Kg3 h2 g5 c3 f5 c2 d6 b3 d5 b2 d7 h4+ Kg2 e4 d6 e3 Qe2 b4 Nc3 b1R Nf3 b3 Nd4 b2 Qa6 e2 Nd5 e1Q Ne3 Qe8 d8B Rh5 d7 Qd1 Bb6 Nc6 d8Q Na7 Qd5+ Be6 Qf3 Rd8 Qfb7+ Rd7 Bd2 c1Q Ndc2 Bc4 Bb4 Be2 B4c5 h3+ Kg3 Ne7 g6+ Kg8 g7 Nec8 Bd4 Rd5 f7+ Kh7 f6 Rhf5 Bdc5 Nd6 g8B+ Kh8 Bg2 Nc4 Re1 h1B Kh2 Nd2 Bf1 Bhf3 Bd4 Bb4 f8N Bh5 Ne6 Bf8 Ng7 Qa8 f7 Qe8 Kg3 h2 Bh3 h1Q Bdc5 Qf1 Kh2 Qf3 Rh1 Qdf1 Bd4 Qce1 Bdc5 Rd1 Rc1 b1Q Bd4 Qa8 Bdc5 Be7 f8R Qb5 Rf6 Qbe8 Re6 Bf8 Bf7 Kh7 Nc4 Kh8 Bg1 Kh7 N4e3 Kh8 Rb1 Rc1 Rb4 Ra1 Rh4 Qd1 Re5 Ra5 Bc4 Rd5 Re6 Kg8 Qc8 Qfe1 Bf2 Qc1 Qcb7 Qb1 Rf1 Qbc1 Bg1 Qef2+ Ng2 Qb1 Re1 Qf1 Nge3 Qc1 Nb4 Qc2 Rc1 Qcd1 Nbc2
1N4q1/1k2b1qQ/q1R1r2b/q1nb1Brn/Q2NP1NQ/n1R4B/4q1QK/2B5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 Kg2 Kc7 d4 h5 e4 f5 d6+ Kb7 d7 f3+ Kh2 f2 b6 f4 b5 f3 d5 c4 g5 a4 d6 h3 g6 c3 g7 a3 Kg3 h4+ Kh2 a2 Bd3 f1Q Ba3 c2 Bb2 c1B Nd2 f2 Nc4 Ra5 Nf3 Na6 Ne3 Nc5 Nd4 Be7 Ng4 Nf6 g8B Nh5 Bh7 Bh6 Bf5 Qe2 Qa4 Re8 Rac1 a1N Rc3 Nc2 Bc1 Na3 Re1 Qc7 d8Q Be6 Qd7 Bd5 Rg1 f1Q+ Rg2 Beg5 Qh7 Qg7 d7 Re6 d8Q Be7 Rf2 Qa2 Rfc2 Qe2+ Kh1 h2 Qdh8 Qd2 Bf1 Qc4 Bg2 Qce2 Bh3 Qg8 Qe5 Qdg5 Qf4 Q5g7 Qf1 Kb8 b7 Kc7 b8N Kb7 b6 Qa6 Kg2 h1Q+ Kf2 Qf3+ Kg1 Qfe2 Qf2 Rb5 Kh2 Ra5 Bg2 h3 Qh4 Ka8 b7+ Ka7 Kh1 h2 Bh3 Rb5 Nd7 Qa5 b8Q+ Ka6 Qbg3 Kb7 Qf2 Qa6 Nb8 Qa5 Bf1 Qa6 Kg2 Ra5 Kh3 h1Q+ Qh2 Qg1 Qg2 Qge3+ Kh2 Q3d2 Qgf2 Qde1 Bh3 Rb5 Rd3 Qea5 Qg2 Rg6 Re3 Rg5 Rec3 Rb6 Rd2 Re6 Rdc2 Nb3 Rc6 Nc5 Rc3
nbn2Rn1/3BB3/2q1QbKQ/R3b1P1/bRB2k1B/2N3N1/br2Nq2/5r1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 f5+ Kd3 f3 e4 a4 g5 f2 b6 f4 b7 a3 b5 h3 b6 h2 Nc3 h4 Nh3 a2 Ng1 f3 Nge2 c4+ Ke3 h3 Kf4 Be6 Qe1 Qe8 Ng3 Qc6 Bd2 Na6 b8R Nc7 b7 Be7 Rf8 Bf6 b8Q Rh6 Qbb1 Rb8 Qb6 Na8 Qe2 Bf7 Kf5 Be5 Qa6 Rb2 Be1 Be8 Rb1 a1B Rg1 h1N Qb6 Rd2 Rb4 h2 Qe3 Rh4 Bd3 Bd7+ Kg6 f1R Rg2 f2 Be2 Ke7+ d6+ Ke6 Bd3 Bf6 d5+ Ke5 Qe2 Kf4 e5 Ra2 e6 Rb2 e7 Be6 e8B Rh8 Nge4 Ng3 d7 h1B d8N Nf5 Bd7 Nd6 Ng3 Nc8 d6 Rh2 Rg1 Bg2 Qh5 Rh1 Qh6 Bf3 Qa6 Bd1 Rg2 Ba4 Rg1 Qb5 Nc6 Qb6 Nd4 Qc6 Nd1 c3 Bc4 c2 Nc3 c1B Nde2+ Kf3 Rg2 Bf4 Rh2 Bd5 Rh4 B4e5 Re4 Bf4 Re5 Be6 Ra5 B4e5 Bd3 Ba2 Qc4 Ke3 Qe6 Kf3 Bc4 Ke3 Be8 Kf3 d7 Bb8 Nd4+ Kf4 d8B Rfg1 Bd7 f1Q Be7 Qf2 Nf3 Rf1 Ng1 Qfc5 Nge4 Qa7 Bh4 Qf2 Ng3 Rd2 Nb1 Bae5 Nc3 Rb2 N1e2+
r1n2Qqn/RRb5/1N1nr2P/1BRRn3/4qN2/4k2r/B3QnbQ/2q1B1K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 b7 a4 b5 c4 b6 c3 Be2 a3 Qf1 g3+ Ke3 g2 Kf2 g4 Bb5 a2 Bd7 g3+ Ke1 f4 Qc4 c2 Be6 f2+ Ke2 f1N Qb5 Ne7 Na3 Ne3 Nh3 Ng6 Bd2 c1Q Be1 Nc6 b8R Nce7 b7 N3f5 h6 g1N+ Kf1 f3 Rh2 f2 Nf4 Nf3 Qe2 Nfe5 Rh5 Rg8 Kg2 f1R Bf7 Rf3 Kg1 g2 Nc4+ Kc7 d6+ Kc6 d5+ Kc5 d7 Kd4 d6 Rh3 Bd5 Nh8 Nb6 Rg6 Bb3 Qe8 d8Q Re6 d7 Nd6 Qc7 Qg6 d8R Qg8 Rd7 Qc2 Qd8 Bg7 Qf8 Qd3 Rd1 a1Q Ba2 Qc1 Rd2 Bf6 Rc2 Bh4 Rc5 Bg3 Rdc7 Bd7 Rg5 Bc6 Rd7 Nef7 e5 Qe4 Rh5 Nc8 Re7 Rf6 e6 Ne5 Rf7 Bd5 e7 Re6 e8B Bh2+ Kf2 g1N Bb5 Re3 Kf1 Nh3 Re7 Nf2 Rf7 Bg3 Kg1 Qd3 Rg7 Bg2 Rd7 Qe4 Rg7 Ra7 Ra8 Rc3 b8Q Ra6 Raa7 Rd3 Rad7 Ra8 Ra7 Re3 Rgb7 Rd3 Qd1 Ke3 Qc7 Rb3 Rf5 Rd3 Qe2+ Kd4 Qce7 Nc6 Rg5 Ndf7 Nh3 Bc7 Rgf5 Nfd6 Nf4 Re3 Qh4 Rf3 Qb2+ Ke3 Rfd5 Ne5 Qh2 Rh3 Qe2#
1Q4b1/RrBBb1q1/N2Prr1q/n3RN1k/N4Q2/1r3Qnn/2Br3q/4KQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 e4 c5 b4 f5 g4 Kf7 b6 Kg6 d6 h5 d7 h3 g5 c4 d5 f3 b7 a4 e5 h2 e6 a3 b5 f2+ Ke2 f4 d6 f3+ Kd2 c3+ Kd3 c2 Kd2 h4 b6 h3 e7 a2 e8N Nf6 Bg2 f1N+ Ke1 Ne4 Ne2 Ra3 Bd2 c1Q Nc7 Be7 Be3 Nfg3 Nd4 Qf8 d8Q Nf2 Na6 Rb3 Nf5 Kh5 g6 Qg7 Qf8 Nc6 b8Q Na5 b7 Rh7 Nc3 Be6 Bb6 Qch6 Qa8 Bg8 Rg1 h1R b8Q h2 Na4 Nh3 Bc7 Rb1 Qe4 Rb3 Rf1 Rg1 Qf4 h1Q Qd3 Qh2 Qde3 Ng5 Bh3 Rg2 Rh1 Rd2 Qe2 Qc3 Qf1 Rf7 Rg1 Qcg7 Rg2 Rf6 Re2 Re6 Re5 Rb7 Rd1 a1R Qf7 Raa2 Ra1 Ra3 Qff8 Qf7 g7 Rab3 Ra2 Bh7 g8B Qfg7 Bg2 Nh3 Ra3 Rg6 Be6 Bg8 Bd7 Re6 Qg1 Ne2 Bf1 Ng3 Bd3 Ra2 Bc2 f2+ Kd2 f1R+ Qg2 Rff3 Ke1 Rf2 Qf1 Rab2 Be4 Rbd2 Bc2 Rf6 Qf7+ Rg6 Qd5 Re6 Qdf3+ Kg6 Nd4+ Rbd3 Q3g2 Ng1 Nb6 Bf7 Qe3 Nh3 Nc5 Nb3 Ra7 Na5 Nba4 Rff6 Qef4 Bg8 Nf5 Kh5 Na6 Rdb3 Qgf3+
1b1Nq1Q1/1B1kn1P1/2q3bB/1r1b4/qr1B1R2/3b1BNQ/n5rR/b1R2Q1K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 c5 Kg2 a4 e4 c4 g5 a3 d6 a2 d5 c3 b6 c2 b5 Ra3 g6 Ra5 e5 Nc6 b7 Rh7 b8R Nge7 e6 Rg7 b6 Nb4 b7 Rb5 Rh2 h3+ Kh1 h4 Be2 f3 Bh6 c1Q Na3 f4 Qf1 f2 Nc4 f3 Na5 Qc6 Rc1 a1B Bd1 Na2 Ne2 Qa6 Nc6 Qa4 Ng3 Rg8 Be2 Bfg7 Ra8 Bge5 b8B Ba6 Ba7 Bb7 Qg1 f1B Bd4 f2 Bf3 Bd3 Qf1 Qb8 Nd8 Bc6 Qg2 f1B g7 Bg6 Ra5 Bfd3 Qf1 Rf8 Ra7 Rf4 Rb7 Re4 Rc7 Bb7 R7c4 Re2 Rb4 Rg2 Rbc4 Nf5 e7 Kd7 Bf2 Qba8 Rf4 Qb8 Bd4 Ba8 Nf7 Qe8 Nd8 Rb4 Bh5 Re2 Nb7 Bc2 Kg1 Ne3 Rh1 Kc8 d7+ Kc7 Bc5 Nf5 d6+ Kc6 Bg4 Bd3 d8Q Rc2 d7 Bb8 Be2 h2+ Kg2 Rcb2 Bd4+ Rc2 Nc5 Bb7 Ne6 Rc5 Qc8+ Kd6+ Kf2 h3 Bh5 Rcb5 d8Q+ Qd7 e8B Ne7 Bf7 Bc6 Qf8 Qe8 Nd8 Bg2 Bd5 B2e4 Rg1 h1Q Qg8 h2 Bb7 Bg2 Qg4 Bf3 Qh4 Kd7 Rg2 Bc6 Rg1 Qe4 Bf3 h1R Rg2 Rh2 Kg1 Qe6 Qh5 Bd5 Rb2 Re2 Kh1 Qc6 Rd2 Re6 Rg2 Re2 Rh2 Rg2 Qh3+
b1r1qb2/2BB2P1/1nN3Q1/b4nk1/2QBnrB1/Q7/KNRR4/R1b2qbr b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Kg6 b4 a5 f4 e5 c4 d5 Kc2 h5 Kb2 e3 b6 d3 b7 e2 b5 e1B c5 h4 c6 h3 b6 e4 c7 d2 Qc2 d1N+ Ka2 d4 Nf3 a4 Bb2 d3 Na3 h2 Bd4 e3 Bh3 e2 Qc4 Bf5 c8B d2 Bd7 Qe8 Rf1 h1R Rf2 Be4 f5+ Kh7 g6+ Kh6 f6 Ne3 g7 d1Q f7 Nf5 Rh2 Nf6 g8Q Ba5 Ne5 e1B Rd2 Bf2 Nc6 Qf1 g5+ Kh5 g6 Kg5 g7 Bg1 Bg4 R8h4 Qh7 Bg2 Rc2 Ne4 Rd2 R4h3 Rc2 Rf3 Rd2 Rf4 Rc2 Na6 b8B Nc7 b7 Nd5 Bc7 Rc8 b8R Bf3 Rb3 Nb6 Rd3 Bg2 Rdd2 Bf3 Nb5 a3 Nc3 Bg2 Nd1 Bf3 Kb3 a2 Nb2 Bg2 Rb1 a1B Ka2 Be7 f8Q Bf3 Na4 Bb2 Ra1 Bc1 Nb2 Ba3 Qfb4 Bg2 Qa4 Bf8 Qa3 Nf2 Ne7 Ba8 Nc6 Ne4 Qg6+
3n2Q1/1rBbPrR1/2qbBNq1/4b1Q1/Q1R2R2/1Nn4r/1K2bR2/1Bnk2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kd6 Kc3 f5 g4 a5 b4 c5 e4 h5 b6 f3 b7 f2 b5 f4 g5 c4 g6 f3 b6 a4 g7 a3 Bb2 a2 Nh3 Qf6 Nd2 Ra7 Rg1 Nc6 b8R Nge7 g8B Nd8 b7 Qg6 Qe1 Bd7 Rd1 a1B Bg2 f1B Rc8 f2 b8R Be2 Nf4 f1R Rb4 h3 Qh4 h2 Nb3 h1Q Rd2 Rb7 Be6 Rh6 Qg5 h4 Nh5 h3 Nf6 h2 Kc2 c3 Rcc4 Rf3 Bgh3 Rf4 Bhf5 Rh3 Kc1 c2 Ra4 Bg4 Rf2 Be2 Bc3 Qf3 Ba5 h1N Rg4 Ng3 Qh4 Qh5 Rg7 Qg6 Qg4 Nec6 Qg5 Na7 Qh4 Nb5 Qg5 Qf7 Bg6 Nc3 e5+ Ke7 Bc7 Rf5 Kd2 c1B+ Kc2 Ba3 Bh7 Bc5 Kc1 Rf4 Bb1 Qe4 Bg4 Rf5 d6+ Ke6 Rab4 Qg6 Ra4 Bc8 d7 Bfd6 Qh4 Qc6 Rab4 Nf7 d8Q Bd7 Qg8 Bb6 Qg5 Bbc5 Qa8 Nd8 Qa4 Ba7 Nh5 Kd5 e6 Bb6 e7 Bbc5 Kc2 Ke4 d5+ Bd4 Rg2 Rf4 Be6 Rf7 Nf6+ Kf3+ Kc1 Bf2 Rf4+ Ke3 Rbc4 Bg1 Rgf2 Nge4 Qa2 Nc5 Qa4 Nd3+ Kc2 Be5 d6 Bb2 Qa2 Ba3 Qa1 Bc5 Qa4 Nc1+ Kb2 Bb4 Na5 Kd2 Nb3+ Kd1 Qh4 Be8 d7 Bc5 Qg5 Bcd6 Bef5 Ne6 d8Q Bd7 Qg8 Nd8 Be6
1q3b1r/Q1nP2BR/n1qRBNb1/B3k2n/2Q4K/R3r1r1/Q6Q/1q2r1Nr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 b4 h5 e4 a5 d4 f5 b6 c5 g5 c4 b7 c3 g6 c2 b5 h3 g7 f3 Kg3 f2 b6 a4 Bg2 f1R Nd2 a3 Bb2 c1Q Qc2 a2 Qc4 h2 Bh3 Nf6 g8Q f4+ Kh4 f3 Be6 Na6 b8Q+ Nc7 b7 f2 Qg2 Qb1 Qa7 Re1 b8Q f1R Qbb3 Rf3 e5+ Ke7 Ne4 Rfe3 Qf2 Bb7 Qg3 Qb8 Bc3 Bc6 Qc2 Be8 d6+ Kd8 d7 Ke7 d5 Bg6 Kh3 h4 d8B+ Ke8 d6 Nh5 Kg4 h3 Kh4 Rg8 Bf6 Rh8 Bg7 Kd8 d7 Ke7 Qb7 Ra3 Nf6 Rb3 Qgf2 Rg3 Ba5 Rbf3 Bf7 Rfe3 e6 Kd6 e7 Ke5 Bd5 Qb3 Rd1 a1N Qa7 Qb1 Q2a2 Nb3 Be6 Nc5 e8R N5a6 Rd6 Q1b5 Ne2 Q5b7 Re7 Qb1 Rf1 h1Q Qh2 Qf3 Ng1 Qfb7 Rf3 Qc6 Qhc2 h2 Rf7 h1R+ Qh2 R3e2 Ra3 Re3 Bh6 Qba8 Rh7 Qab8 Bg7
2KBrR2/3P4/1R1BN3/2N2N1R/1knB1rbq/1nq5/B4QQ1/1rqqb1nq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kc4 g4 c5 e4+ Kb4 b6 f5 d6 a5 b7 a4 d5 f3 g5 f2 g6 a3 g7 a2 d7 h3 Ke6 f4 d6 f3 e5 h4 Qd4+ c4 Be3 h2 Nc3 h3 Na4 Qc7 Ne2 Ne7 g8Q Nbc6 b8B Ng6 Nf4 Rh4 Nc5 Na5 Rb1 a1N Qd2+ c3 Bd4 Bh6 Bc4 f1Q Ba2 Nc4 Qf2 c2 b3 c1Q Rb2 Ka3 b4 Qfd1 b5 Nb3 b6 Kb4 b7 Rg4 Qg7 Nh4 Qg5 Rg1 Qgg2 Re1 Ke7 Rf1 Nfe6 Bd2 Rb1 Be1 Rb2 Qc6 Kd8 Qc3 Bc7 Qe4 b8B Qee3 Ng7 Qec1 e6 Rg1 e7 Rf1 Qe3 f2 e8R Nf3 Rf8 Rg1 Qd2 f1R Nf5 Rf2 Qe3 Rgf1 Bb6 Ng1 Qd2 Rf4 Qdf2 Nd2 Kc7 Nc4 d8N Bd7 Kb7 Be6 B8c7 Rc8 d7 Ra8 Nd6 Bg4 Nde6 Re8 Nf5 Nf3 Rg1 h1Q Bd6 Qh2 Rh1 Ng1 Rb1 Qhg3 Rb2 h2 Bd8 Qh4 Kc8 Nf3 Rg1 h1Q Rb1 Q1h2 Rh1 Ng1 Qd5 Qg2 Rh3 Qh1 Qdg2 Qhg3 Rh5 Qgh4 Rb2 Qdf3 Rf7 Ka3 Qh3 Nbd2 Bb8 Qa1 Qe2 Bf2 Rb7 Nb3 Qg3 Rc1 Rf8 Be1 Qd2 Qd1 Qgg2 Qab2 Bc7 Rb1 Bd6 Qcc1 Qdf2 Qbc3 Ra7+ Kb4 Ra6 Rb2 Rc6 Rb1 Rb6+
1K2b2b/P4B2/rnQ5/2k3Bn/bR4Nb/2q5/nQB1rRB1/b1qRQr1N b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Ke3 f5 Kf4 b5 e4 c5 d4 c4 h4 g3 a4 g6 h5 c3 d6 Kc6 d5+ Kc5 a5 b3 d7 b4 a6 c2 h6 b2 d6 g2 e6 b3 Ke5 g5 a7 g4 e7 f4 e8B g3 h7 f3 Na3 b1N Bf7 b2 Nh3 g1B Nc4 g2 Ne3 f2 Rh2 Be7 Ng4 Bh4 Qe1 Nf6 Bg5 c1Q Ra4 Nc3 Rb4 Nh5 Bd3 f1R Nhf2 Na2 Nh1 Rg8 h8Q Rg6 Bc2 Rgf6 Qg7 Qh8 d8Q Bd7 Qe8 Ba4 d7 Ra6 d8R Bgf2 Rd6 g1B Rd1 Be3 Bd5 Bef2 Bc6 Nd7+ Ke6 Bd4 e5 Bge3 Rf2 Nb6 Bg2 Bd2 Ke7 B2c3 e6 Rd8 Qeg6 Be5 Q7f6 Rd2 Qe8 Bcd4 Kd8 Re2 e7 Bc3 Qg7 Bf6 Kc7 b1B Bg6 Bb2 Kb8 Ba1 Bf5 Bbc2 Qc8+ Bc6 e8B Ba4 Bf7 Bfd4 Qf6 Qg7 Qh8 Be8 Qe6 Qf6 Bc2 Qf3 Qhf6 Qfe3 Qb3 Qc3 Qfe6 Bg7 Qb2 Bh8 Qc6+
Kb2n1N1/nNR5/6b1/1kbN2bP/1Q2rn2/1Bq2R1Q/r1b2BR1/bBb4N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Ke3 c4 h5 c3 e6+ Kd6 e7 c2 e8B f4+ Ke4 f2 b6 f3 b7 a4 b5 a3 b6 a2 Rh3 g3 Bc4 f1N Ne2 g2 Nbc3 g1B Qd3 g4 Ng3 f2 Be3 c1B Nh1 g3 Bb3 g2 Bg6 Bb2 Rf3 Nc6 b8Q+ Qc7 b7 Na7 Rc1 a1B Bh7 Kd7 d6 Kc6 d7 Be7 d8R Bh2 Nd5+ Bc5 Rd7 g1B Rc2 Bc1 Qc3 Qg3 Rc7+ Kb5 Rd2 Be6 Qf8 Bd7 b8N Be8 Nd7 Bg6+ Qf5 Qh3 N7f6 Ng3+ Ke5 f1B Bf2 Bd3 Qb4+ Ka6 Ke6 Bc2 Kd7 Ne2 Qg4 Qg3 Qh3 Nf4 Re2 Re8 Rd2 Re4 Kd8 Ne7+ Ng8 Nf5 Kd7 Ng7 Re2 Nc6 Kc8 Na7+ Kb8 Ne8 Ka8 Be7 Be3 Qe1 Rg2 Bg5 Bf2 Bg3 Ne3 B3h2 d5 Qc3 d6 Bg3 d7 B3h2 Qa3+ Kb5 d8N Bg3 Nd5 B3h2 Bg3 Bc5 Bf2 Bg3 Nb7 Bh2 Nge7 Rf8 Qb2 Rf6 Qb1 Ra6 Ng8 Ra2 Qb2 Bg3 Qa3 Bh2 Qb4+ Ka6 Rg1 Rd4 Ngf6 Bgf5 Kb8 Ne2 Be1 Bb1 Ka8 Rh4 Rg7 Bb8 Rf7 Rc4 Bg6 Nf4 Rc7 Bfe4 Rg2 Bed3 Qa3+ Kb5 Ng8 Ra4 Bf2 Bf5 Bf7 Bbe4 Be6 Bg6 Bf5 Bb1 Bfc2 Rb4 Bd1 Bbd3 Bdc2 Re4 Bb1 Bc2 Qb4+
n2Q4/1R1BPR1N/1Q3nb1/R2nK1b1/1R1N3q/2r2kBN/nn1n1B2/3b2nr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 f5+ Kd3 f3 e4 a4 g5 f2 b6 c4+ Ke3 f4+ Kf3 c3 b7 h3 g6 h2 b5 c2 b6 a3 g7 a2 Be3 c1N Bc4 f1N Qc2 h4 Qe2 h3 Bb5 Qh4 Ba4 Nf6 g8N Bf5 Nc3 Ng3 Qe1 Bg6 Qf2 Nge2 Bd7 Na6 b8R Nc7 b7 Be7 Rf8 Rb8 Rf7 Rc8 b8R Na8 Rb4 Rh6 Rab1 a1N R1b2 Nc2 e5+ Kc7 e6 Kd6 Rb7 Na2 R2b5 Ncb4 Ra5 Ng3 Nce2 Rc3 Nc1 Ne2 Nb3 Nec1 Qb2 Ncd3 Bf2 Bd8 Bg3 Rh7 Qf2 Nb2+ Qe3 Ne4 Bf2 Bg5 Nf6 Rh5 Nh7 Nf6 e7 Rh6 Ne2 Rh5 Rd1 h1N Ng1 h2 Nh3 Ng3 Rf1 Ne2 Rb1 Bc2 Bg3 Bd1 Bf2 Ne8 Ke4 h1B+ Kf5 Ng1 Bg3 Nf6 Bf2 Na6 Rb4 f3 Qe6+ Kc7 Ke5 Bg2 Bg3 Bf1 Bf2 Bd3 Bg3 Bg6 Bf2 Nb6 d6+ Kb7 d5 Nc7 Nd4 Na8 Ba4 Rh6 d7 Rh5 Bg3 f2 d8Q f1N d6 Nd2 d7 Rh6 Qf8 Kc7 d8B+ Kb7 Bb5 Nbd5 Bf2 Rh5 Bc7 Rh6 Bd6 Kb6 Bc7+ Kc5 Qd8 Rh5 Ra7 Rh6 Bd7 Rh5 Rbb7 Kc4 Qb6 Kd3 Ra5 Rh6 Ke6 Ke4 Bcg3 Rh5 Nc6 Kf3 Ke5 Na4 Rb3 Nb2 Rb4 Qc4 Nf4 Rh1 Nh3 Qh4 Nd4+
k1rq1Qr1/2N1n1Bb/1nnR1b1B/3n1N2/5Q2/K1R5/4RPbr/1B1Nq1Nq b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 Kd2 a5 Kc2 e5 Kb3 c5 g4 Kc7 g5 Kb7 b6 h5 g6 a4+ Ka3 c4+ b4 h3 g7 h4 d6 e3 b5 e2 d5 e1N Ka2 c3 d7 a3 d6 e4 Qb3 c2 Bc4 e3 Bd3 e2 Nc3 h2 Qb4 h3 Bh6 c1R Qf4 Nf3 Bb1 e1Q Nd1 Ne7 g8N Ne5 Bg7 Rh5 Nh6 Nc4 Nf5 Nbc6 Kb3 Kb8 b7 Nb6 Ra2 Rc4 Re2 a2 Kb2 a1N Bh6 Ka7 b8N Bg7+ Ka3 Bf6 Na6 Rh4 Nc7 Nc2+ Ka2 Ne3 Ka3 N3d5 Bg7 Qf8 d8Q Ba6 Qc8 Qd8 d7 Rh8 Qf3 Rch4 Qf4 Rg8 Bh6 Qf8 Qe8 Rc8 d8R Bb7 Rd7 Ba8 Qf7 Qd8 Qf8 Rh5 Rd6 Rh4 Nf3 Rh5 Rg1 h1Q Rg3 h2 Ng1 Kb8 Rc3 Bb7 Na6+ Ka8 Bg7 Qe4 Bh6 h1B Bg7 Rh2 Nc7+ Ka7 Bh6 Bf3 Bg7 Bh5 Bh6 Bg6 Bg7 Bh7 Bh6 Nd7 b6+ Kb8 Bg7 Qh1 Bh6 Ba8 b7 Ka7 b8B+ Kb7 Ba7 N7b6 Qf3 Nd7 Bae3 N7b6 Bg7 Kb8 Beh6 Bb7 Ne6 Ka8 Qf4 Ba6 Ree3 Bf1 Re2 Bg2 Nc7+
1kbb2Q1/1n1n1Qr1/1BRRNqQq/N1RK4/8/1B3P2/N2n1n1r/N3rqb1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 h5 b4 h3 g4 h4 g5 h2 d6 h3 f3 a4 g6 e3 b6 e2 g7 e1B b5 a3 b7 a2 b6 Ra7 Na3 Bh4 Qc2 Nf6 Ne2 Ne8 Nc3 e5+ Ke4 c5 d4 c4 d5 Bf2 Be3 Be7 Rc1 a1N Na2 c3 Bc4 Nb3 Qb1 Beh4 Nc2 Qe7 Na1 c2 Rhg1 h1Q Rg6 h2 Bd4 Kd8 d7 Qf1 Rc6 h1N Be3 Bg1 Bc5 Na6 b8Q Qf8 Qd6 Nb8 g8Q Bg5 b7 Rh2 Qb2 Be7 Qdg6 Qf6 Ra6 Kc7 d8N Qh8 Nc6 Qf6 Rd1 c1Q Na5 Qh6 d6+ Kd8 d7 Kc7 Rc1 Nd2+ Kd5 e4 d8N e3 Qe5+ Nd6 Qee6 e2 Bb3 e1R Rc2 Nc6 b8R Ne5 Rbb6 Nf2 Rc1 Rb7 Qd7+ Kb8 Ne6 Bd8 Be3 N6e4 Rd6 Nc5 Rac6 Ra7 Qde8 Rg7 Qef7 Nb7 Bb6 Nd7 R1c5
2b3B1/KNr5/1n1R4/3b1nk1/bq2Q2B/3P2BR/1nrbqB1q/2NQR1Nr b - - 0 1 illegal: No possible last move
Q1B4N/2N4R/b2qn1NQ/R1Br3b/kq1Pn2K/2B1qRn1/1b2r2B/b5r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 f5 d4 h5 d6 f3 b6 Kc6 d7 f4 g5 a4 e5 h3 g6 h2 b7 c4 g7 Kb5 e6 h4 e7 h3 e8N a3 Bd2 a2 Nf6 Ra5 Ne8 Na6 b8B Nf6 g8Q Nc5 Bc3 Ba6 Qc1 Ka4 b5 Ne6 b6 Ba3 b7 Rd5 Nd2 Bb2 Ne4 Rh6 Rb1 a1B Ng5 Qa5 d8R Qb4 Bd6 Ne4+ Ke1 Rh7 b8B Re7 Nc7 f2+ Ke2 Re8 Nf7 f3+ Ke3 Re7 Nh8 Re8 Bg2 f1B Bc5 f2 Nf3 Be2 Nh4 f1R N4g6 Bh5 Bf3 Rg1 Bg4 Re7 Kf3 Re8 Qh6 Re7 Bd2 c3 Rf8 c2 Bc3 c1Q Rf6 Qg5 Qc8 Re8 Qb7 Qe5 Qa8 Qd6 Rf7 Re1 Rf1 h1N Rh7 h2 Kg2 Re2+ Kh3 Rg8 Kh4 Nhg3 Rf3 h1Q+ Bh3 Qg1 Bg4 N6g5 Bh3 Qe3 Bc8 Ba3 Rb3 Ne6 Rb2 Qc4 Rb5 B3b2 Ne8 Qb4 Bc7 Qc6 Be5 Qd6 Nc7 Nf1 Bh2 Rg7 Ne5 Rg1 Neg6 Nfg3 Ra5+
rQ2n2b/1R2n1Nq/1KbB1Q2/RB1r4/P4n2/N1Rbr1Rq/Q4q1n/2B3k1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 g4 h5 a4 b5 g5 e5+ d6 e4 d4+ e3 g6 b3 f3 Kg3 g7 Kf2 d5 h3 f4 b4 f6 h4 f7 b2 f5 b3 f6 e2 Nf3 e1N Nc3 b1B Ra3 h2 Ra1 b2 Bh6 h3 Bg2 Ne7 g8Q Bd7 Qb3 Bg7 Ra3 Qf8 Ng5 Nf3 Bf1 c6 Rg1 h1Q Ne6 h2 Rg5 Na6+ Kb6 c5 Qa2 c4 Nb5 c3 Nec7 Bh7 Ne6 c2 Rc3 Be8 d7 c1N d8R Ne2 d6 b1R d7 Re1 Rb8 Nc7 Rb7 Rd1 d8B Bc6 Na3 Bb1 Rh5 Kg1 Ra5 Rd5 Bc1 Rh3 Qh8 Bg6 Qg8 Bh8 Ng7 Ned4 Bb5 Ne2 Nc4 Bd3 Na3 Ne8 Bc7 Nd6 Bb8 Qg2 Bc7 h1Q Bb8 Qc8 f8R Rg3 f7 Qh7 Bc7 Qch3 Bb8 Nh2 Bc7 Ne4 Bd6 Re3 Re8 Nf2 f8Q Nfg4 Qff7 Qf2 Rf8 Nf6 Qe6 Ne4 Rf3 Nf4 Qb8 Nf6 Qe5 Ne8 Qf5 Q7h4 Qf6 Qh7 Rg3+
2qB2nB/2rQ1r2/2n1qR2/2PRrnN1/2B4q/1QkNb3/Q1bNK2N/2q4b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 g4 Kf6 f4 h5 b4 e5 b6 a5 b7 d5 b5 a4 b6 a3 c5 e4 Bb2 h3 Be2 e3 Bf1 h2 Bg2 e2 Bf1 a2 Nf3 h4 Qd2 Nc6 b8Q h3 b7 Rh7 Qc7 Qd7 b8B Qe6 Qd7 Bh6 Bc7 Ra7 Bd8+ Re7 Qd1 Rc7 Qb3 Bg5 Kf2 e1R Bc4 Re5 Nbd2 d3 Rhd1 h1Q Nh2 d4 Rf1 Bb7 Rad1 a1Q Bc3 Bh6 Qa2 Qc1 g5+ Kg7 g6 Kf6 g7 Bc8 Ndf3 d2 Qb3 d3 Ba1 Kf7 f6 Kg6 f7 Kf6 f5 Be3+ Kg3 Ba6 f8N Bb5 Rf2 Ba4 Ng6 Qe1 Qa2 Bc2 Nf4 Qh1 Rdf1 d1Q Nd2 Qh5 Rd1 Qe8 Kg4 Qe1 Kf3 Qf8 Rf1 Qh4 Bc3 Kg5 f6 Kf5 f7 Kf6 Nb1 d2 Ke2 Kf5 Ba1 Ke4 Nd3 Qe8 f8N Rf7 Nh7 Qf8 Ng4 h2 Rf6 h1B Nh2 Qfe8 Rg1 d1N Rg5 Nf2 Bd4 Ng4 Rh5 N4h6 Bc3 Nge7 g8Q Nef5 Qg1 Rd5 Qd1 Ng7 Rf3 Bb3 Be7 Qc8 Bd8 Ng8 Qdc2 Ba4 Qcb2 Bc2 Qbb3 Rg5 Bcf6 Rd5 Re5+ Kd4 Nd2 Qhh3 Ng5 Qh4 Qb5 Kc3 Rf2 Nh5 Bh8 Ng7 Rf6 Nf5 Qb7 Rd4 Qb8 Re4 Rd5 Re5 Qbb3+
rr3R2/R3Rn1K/b4NP1/RB3q2/3nb1b1/NBn3r1/1kqq1Q1Q/2B3bQ b - - 0 1 illegal: No possible last move
4k1B1/K1Rr1Qb1/n4PB1/2QqnNR1/2bb1N2/1r1q3n/3r1QNB/3Bq2q b - - 0 1 illegal: No possible last move
8/4qnK1/2kBBP2/1n2N2B/NQn2RRr/bn2Q1rb/5r1b/B1Q1qN1q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 h5 g4 e3 d4 e2 f4 e1R+ Be2 h3 b4 c4 d6 h4 d5 a4 f5 e6 b6 h2 b5 c3 g5 h3 g6 a3 g7 c2 b7 a2 b6 Qe7 Bb2 c1Q Nc3 Ra3 Nf3 Rf1 Nd2 Rh4 Na4 Nh6 g8B Rf2 Bh5 Rg3 Rg1 h1N Nf1 Na6 b8B h2 b7 Nc7 f6 Qd2 Qc1 Nb5 Bc7 Qb4 b8Q Qa5 Rb1 a1N Qe3 Nb3 Ba1 Qe1 Rc1 Rd2 Rc4 Rf2 Rf4 Nf7+ Ke4 e5 Kf5 e4 Qbb6 Na3 Qb4 Nc4 Qc1 e3 Rg2 Rgh3 Kg6 e2 Rgg4 Ng3 Kh7 h1Q Bb8 Kd8 d7 Ne4 Bd6 Rg3 Kg6 Nc3 Qe3 Nh6 Be6 Nf7 Kh7 Qe8 Kg6 Be7 Kg7 Nb5 Bc5 Kc7 d8Q+ Kb7 d6 Kc6 d7 Bd6 Qc1 Qe7 Qh8 Be5 Qh6 Bb2 Bd6 Ba3 Qb1 Qc3 Qd1 e1B Qc1 Qe3 Qg5 Bd2 Qe5 Qe1 Qe3 Bc3 Bc5 Be5 d8N+ Kc7 Nc6 Bd7 Nd4 Bc8 Nf3 Kc6 Bd6 Qd1 Rf5 Bf4 Rg6 Rgg2 Rgg5 Bh2 Rf4 Rg3 Beg4 Qe1 Bf5 Be6 Bfg4 Bd5 Be6 Be4 Rg6 Bf5 Rg5 Bh3 Rg6 Ra2 Rgg4 Rf2 Ne5+
rBbnNR1b/1qRr2PB/4r3/b1Bq2Nk/1q1B4/4R1nq/1N3Kn1/1Q4Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 e4 c5 b4 f5 g4 Kf7 b6 Kg6 d6 h5 d7 h3 g5 c4 d5 f3 b7 a4 e5 h2 e6 a3 b5 f2+ Ke2 f4 d6 f3+ Ke3 c3 e7 h4 e8N h3 b6 c2 Ba6 f1Q Bb2 c1Q+ Qd2 a2 Nc3 f2 Na4 Nh6 Bd4 Rh7 Nf3 Qb2 Qd1 Kh5 g6 Nc6 b8B Qb4 Rc1 a1B Ng5+ Ng4+ Kf3 Be7 b7 Ne3 Nb2 Ng2 Bd3 Qdb6 Bb1 Nd8 Rc7 Q6c5 Rg1 h1N Bf5 Qfb5 Re1 h2 Re3 Ng3 Qg1 h1R Ba7 Rh4 b8B Qd5+ Be4 Rh1 Bac5 Qbb7 Qb1 Bf6 Qg1 Bh8 g7 Rh6 Qb1 Re6 Qg1 Nf7 d8R Rh2 d7 f1Q+ Qf2 Qh1 Qg1 Rh4 Qb1 Qh3 Kf2 Rg4 Bh7 Rh4 Na4 Bc3 Nb2 Bd2 Nd6 Rhe4 Rf8 Nd8 Ne8 Re7 Qg1 R4e6 Qb1 Qbc4 Qg1 Ba5 Qb1 Qcb4 Qg1 Nc6 d8Q Rd7 Qf6 Nd8 Qf5 Q7b5 Qd3 Qbb7 Qdb1
RB1r1Q1R/r3RB2/2rn1q2/7R/Bn3nNQ/1rNPk1n1/1bbn1r2/Q5K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 g4 Ke5 e4 Kd4 b6 f5 e5 c5 e6 h5 g5 a5 b5 f3 g6 f4 e7 c4 e8Q h3 g7 a4 d6 a3 d7 h4 b7 c3 b6 a2 Qb3 c2 Qe2 h2 Qd1 h3 Qe2 Na6 b8R Qf6 b7 Ra7 Qe1 Ba3 Qe2 Bb2 Qeb5 Ne7 d8R+ Nd5 g8B Bf5 Bh7 Nb4 Rd6 Rd8 Rd7 Ra3 Q3a4 Rb3 Bg6 Be4 Ke1 f2+ Ke2 Bf5 Nf3+ Ke4 Bg2 f1N Ne5+ f3+ Kf2 Nf4 Re7 Ne3 Rc8 Nc4 b8Q Nd6 Qba6 Kd4 Kf1 f2 Bf7 Bg6 Nc3 Bf5 Rg1 h1N Bc6 h2 Rg5 Bh7 Rh5 Bf5 Rb1 a1R Bd7 Raa3 Ra1 Bh7 Qe2 Ra2 Qe1 Raa3 Qaa8 Ra7 Ba4 Rad7 Qe2 Ng6 Nd1 Nb5 Qe1 Rg8 Qf3 Nf8 Qg3 Ng6 Nd3 Rh8 Kg2 f1N Qh3 Nhg3 Qh4+ Ne4 Rf8 h1R Qc8 Rh3 Kg1 Rf3 Ra3 Ng3 Ra2 Na3 Bb5 Nb1 Ra8 Rf2 Ba4 Ra7 Qe8 Bc3 Bb2 c1R Qf1 Nf4 Ba3 Bb2 Ne5 Nc2 Bd6 Nb4 Bb8 Rc6 Nc3 Nd6 Qd8 Bc2 d3 Nd2 Qa1 Rg8 Qe8 Ke3 Qc8 Rg6 Rfh8 Rg8 Ne2 Rd8 Nc3 Rdd7 Qf8 Rd8 Ng4+
1Nn3n1/1B4B1/b1R1q2Q/KB2Nq2/1n3Q2/N3r1Rn/knP3r1/RN1q1nb1 b - - 0 1 illegal: No possible last move
b2B2R1/nB5K/Q2r1B1b/3Rb2n/6rN/2QP1rbr/1qNkNQ2/1rn1N3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 g4 f5+ Ke5 h5 g5 c5 g6 a5 b6 f3 g7 f4 b7 a4 d6 f2 b5 h3 b6 h2 d7 f3 Kf5 a3 Kg6 a2 Nc3 h4 Qc2 h3 Qd1 Nc6 b8N Rh4 b7 Ra6 Bb2 Rg4+ Kh7 Qf6 d8B Na7 Qc2 Rd6 Rd1 a1B Bg2 f1N e4 f2 e5 Ng3 e6 f1R e7 Ne2 e8Q Nc1 Qc6 Rf3 Nce2+ Qc3 Qb3+ Kd3 Na6 c4 b8Q Bb7 Qcc8 Bc6 Q8b6 Ba8 Qf2 Be7 Qa3 Bh4 Qc6 Qb3 Bbf6 c3 Qc7 c2 Nb4+ Ke4 Qc3 Qb2 Qa6 Bg3 Nd4 Kf4 Nge2+ Ke4 Rhg1 h1R Nd3 h2 Rgf1 Rg1 Ne1 h1R+ Bh4 Nh6 g8N Rh3 Ne7 Nf5 Ng6 Ng7 Bh1 Nh5 Bhf6 Bf4 Nh4 Bh2 Qg2 Bg3 d3+ Ke3 Qh2 Rf2 Bb7 Rf3 Rf2 Na2 Rb1 c1B Rg2 Rgf1 Qc5 Kd2 Ndc2 Qa3 Qcc4 Bae5 Rb5 Qb2 Qc7 Kd1 Qcc6 Bh6 Rd5 Nc1 Rg1 Kd2 Qf2 Qb3 Qcc4 Qb2 Qc3+ Kd1 Qg2 Ra4 Qac4 Bh2 Bc7 Na2 Qf2 Rb4 Rg4 Bhg3 Rg8 Rfh1 Qc6 Rg4 Qa6 Rf1 Bcd8 Rg1 Qcd4 Kd2 Neg2 Rb1 Nge1 Nc1 Qc3+
3B4/nb1QRqNR/BK1b4/1nn5/rq1k1P1N/Q2qnr2/N6n/QN1R1n2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 b4 c5 d4 a5 g4 e3 f4 e4 g5 h3 g6 a4 g7 e2 b6 e1N Kb5 h2 b7 e3 Qe2 a3 Qb2 c4 Bh3 c3 Ne2 c2 Be6 a2 Bh3 h4 Bd2 c1N Qa3 Nb3 Nc1 e2 Bf1 Nh6 g8N h3 Ne7 Nc6 b8R Ng2 Ng6 e1Q Nh4 Nc5 Rb7 Ne3 Re7 Bb7 Be2 Qe8 Kb6 Nhg4 b5 Ra4 Ba5 Qb4 Rd1 h1Q Rh7 Be7 Bd3 Kd7 d6 Ke6 d7 Kd5 d8N h2 Ne6 Qf3 Ng7 h1N Bc4+ Ke4 d5 Qf7 d6 Ng3 d7 Ngf1 d8Q Na7 Qd7 Bd6 Bd3+ Kd4 Re1 Nf5 Re7 Ngh2 Nd2 Rc8 Be2 Ne6 Bd3 Be4 Ka6 Qb1 b6 Rc3 b7 Qb3 Rb1 a1N b8Q Qb2 Qab3 Nc2 Na2 Na3 Rd1 Qe2 Bb5 Rf3 Nb1+ Qd3 Bc4 N5e3 Bb5 Rb4 Bd8 Nc5+ Ka5 Bd5 Ba6 Ba8 Qbb5 Ra4+ Kb6 Qc3 Qb2 Bb7 Q5b3 N3b5 Qa1 Qb2 Nac3 Qbd2 Na2+ Q2c3 Qa3 Qb2 Nac3 Qb4 Na2+
Q1KRn1n1/rN2kBBQ/N1bRn2b/3n3q/B2P1bN1/1r6/r1QQ4/bn6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 h3 e4 f3 b4 f4 d6 c4 g5 f2 b6 h4 d7+ Ke7 b7 f3 g6 h2 g7 a4 b5 h3 b6 c3 Bb2 a3 Qc2 a2 Bb5 f1N Na3 f2 Nf3 Na6 b8N Nc5 b7 Ne6 Nc4 Qe8 Ba4 Ra7 Na6 Ne3 b8Q f1N Na5 Bb7 Rd1 a1B Qa8 Bc6 Nb7 Nd5 d3 Nd2 d8Q+ Kf7 Rhg1 h1N Nh2 Nf2 Rg6 Nb1 Ng4 h2 Qg5 h1R Qgd2 Re1 Kf5 Reh1 e5 R8h3 Rf6+ Ke7 Rh6 Nef4 Rd6 Ne4 e6 R1h2 Rd8 Nd6+ Ke5 Ngf6 g8Q Bh6 Qh7+ Qf7 Kd4 Ng8 Kc5 Ne8 Rd6 Ndc7 Kb6 Rf3 Qcc1 c2 Bg7 Rg2 Qb2 c1B Qbc2 Qh5 Rd8 Nb5 Rd6 N5c3 Rd8 Nef6 Kc7 Ncd5+ Kc8 Ne8 d4 Nec7 Re1 Rb3 Re3 Ne8 Re5 Ndc7 Red5 Rf2 R5d6 Nfd5 Qb4 Bcg5 Qbd2 Bf4 Qdc3 Nef6 Qcf5 Rc2 Qd2 Ra2 R8d7+ Ke8 e7 Kf7 Rd8 Ne6 e8B+ Ke7 Bf7 Ne8 Qfc2
Rbr2r1n/3NRq2/B5Q1/KbN1n1B1/2P1r3/nRN1k1Qr/1r6/QQ1q1r2 b - - 0 1 illegal: No possible last move
2n2Qn1/2n3BQ/n2n4/1R1b1qPK/1k3r1R/1B1rNN2/Qb1r1NRr/1N2b3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 g4 f5 d4+ Kb4 g5 h5 b6 a5 e5 c5 e6 a4 e7 a3 e8Q h3 b3 h2 d6 c4 b7 c3 d5 a2 d7 h4 d6 c2 Ne2 h3 Qg6 Qf6 d8R Ra3 d7 Na6 b8N Bb7+ Kf2 f3 Kg3 f4+ Kg4 f2 Nd4 f3 Bb2 c1B Bc4 f1N Qe2 f2 Qh7 Ne3+ Kh5 f1R Nf3 Qf5 Bg7 Bd5 Qc2 Bb2 Nc6+ Kc5 Rg1 h1N Ncd4 h2 Rb8 Nf2 d8N h1N Nf7 Ne4 Nh6 Nhf2 Rg2 Nd6 Ng4 Nfe4 Nf2 Nc8 Qd2 Ned6 Nc2 Rd1 Qe2 Rd2 b4+ Kc6 b5+ Kc5 b6 Rad3 b7 Be7 Nca3 Kb4 Bb3 Bd8 Nc4 Bc7 Nba3 Ba5 Rh1 a1R Nb1 Ra4 Rh3 Nc2 Rh4 Na3 Qe6 Nab5 Qf7 Nbc7 Ne3+ Kb5 Qf8 Rf4 Qf7 Bac3 Qf8 Nde8 Qa3 Ned6 Qa2 Kb4 Ra8 Nc5 Ra5 N5a6 Rc5 Rc2 Ra5 Be1 Rc5 Rcd2 b8Q+ Nb6 Qd8 Nbc8 Qf8 Rd1 Rh1 Be5 Qh6 Qd7 Kg6 Bb2 Ra5 R1d2 Qh2 Rhh4 Qh3 Rhg4 Qh7 Qf5+ Kh5 Rg3 Rh4 Rh3 Rc5 Rh2 Rb5+
3BQ2b/k1B4n/2r2r2/2Nn1PnB/Q4NK1/1Nr1R1nR/2rN2b1/4qbrR b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 h5 g4 e5 f4 c5 d4 Kc7 d6+ Kb6 f5 a5 d7 e3 Kf3 a4 d5 a3 d6 e4+ Kf4 e2 g5 e1N g6 e3 g7 h3 Ne2 h2 Ng3 c4 Qg4 e2 Bg2 a2 Qh3 c3 Nf1 h4 Ng3 c2 Be4 Rh6 Qg4 h3 Nh5 Ra6 Bf3 Rf6 Nd2 Ne7 g8R Qe8 d8Q+ Ka7 d7 Rac6 Rh8 Nd5+ Kg3 Qe3 Nf4 Ba6 Qe8 Bg7 d8B Nd7 Rh4 Bh8 b6+ Kb8 b7 Ka7 b8N Nf8 b5 Nh7 Bb2 c1R Be5 R1c3 Bec7 Qe7 Rd1 a1R Nd7 Rac1 Nc5 R1c2 Ncb3 Qe4 Ra1 Qe3 Ra3 Qe6 Rg1 h1B Rf1 h2 Rh3 Bg2 Rh1 Qe3 Qh4 Qf2+ Kg4 Qf1 Rg1 h1N b6+ Ka8 b7+ Ka7 b8N Ng3 Rgh1 Qg1 Be4 Nf3 Nd7 e1R Ndc5 Nfg5 Bf3 Qf2 Ra1 Rg1 Re1 Baf1 Re3 Nb4 Bd5 Qe1 Bf7 Nd5 Bh5 Ne2 Qf2 Ng3 Qe2 Rf7 Qb5 Rff6 Qa4+
4nNBQ/b2K1Q1q/RQ1QN1n1/1kP1Bb2/q3q1b1/qr2rRq1/5q2/2R1B3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 a5 f4 h5+ Kg5 e5+ f6 h3 Kf5 h2 b4 h4 c4 h3 g4 a4 b6 e4 b5 a3 b7 e3 g5 d3 f7 d4 g6 e2 b6 e1Q g7 a2 Bd2 Qdh4 Nf3 Ra3 Ng5 Kc6+ Ne6 Nf6 g8Q Qhg3 Nc3 Ne8 Nd5 Rb3 Nc7 Nd7 b8B Qef2 b7 Ne5 Be1 Bc5 f8R d2 Qf7 Ba7 c5 Ng6 Bc4 d3 Qh5 Rg8 Qh8 d1Q Rc1 a1Q Rf1 Qfc2 Rf3 Rg7 Rg8 h1Q Rf8 h2 Rg8 Rh7 Rg7 Nf8 Rg6 Qa3 Ke5 d2 Rf6 Qg4 f5 Rh3 Rh6 Qhg1 f6 h1Q Rg6 Qf2 Rh6 Nh7 Nf8 Bf5 Nce6 Qb1 Bd5+ Kb5 Bc7 Qdc2 Bd6 d1B b8Q+ Ka4 Bc4 Qgg3+ Kd5 Qba1 Kc6 Qe4+ Kd7 Q1a2 Qc7 Qhh2 Bd5 Kb5 Be5 Qaa4 Qd6 Qa1 Qg6 Q1a3 f7 Be2 Qgf6 Re3 Ng6 Qh1 f8Q Qhh2 Q8f7 Bd1 Rf4 Bdg4 Rf3 Nf8+ Ke7 Qa1 Nef4 Qa5 Qb8+ Ka4 Qfh7 Rb3 Re3 Qa6 Bg8 Qh4 Qf7 Qa3 Qc7 Kb5 Rg3 Ne6 Nf8 Q6a4 Kd7 Qhg1 Rd3 Rf3 Q6e7 Qgg3 Rf6 Qh7 Rd6 Bg6 Ra6 Rfc3 Qed6 Re3 Nd3 Nf4+ Rf5 Ne6 Rf3 B6f5 Nf4 Qfc2 Nh5 Qcf2 Ng7 Nf4+ Nge6 Ng6 Qcb6+
kbQ2n2/N4Q2/r1BRN2Q/1P4bq/1B2n2B/n3b2q/K1b1R1b1/QN3br1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b6 Kd7 e4 h5 b4 a5 d4 c5 Kd2 f5 Kc2 f3 Kb3 c4+ Ka2 c3 g4 f4 g5 c2 b5 a4 e5 f2 d6 f3 g6 h3 b7 a3 d5 h4 g7 h2 Nd2 h3 Bd3 f1N Bb2 c1B Ne2 f2 Nf4 Ne3 Be4 Ra6 Kb1 Nc2 Ra2 Nf6 g8Q Be7 Qh7 Rg8 Bc3 Qe8 Qh6 Qh5 e6+ Kd8 d7 Kc7 d8N Nbd7 d6+ Kb8 Bd5 Nf8 d7 Rg6 Re1 h1Q Re2 f1B Rb2 Bd6 e7 h2 e8Q Rg1 Qf7 Qg2 Rb3 h1B Bb4 Qgh3 Rd3 Bhg2 Be4 Ka7 Rd5 Be5 b8B+ Ka8 Nc6 Bd6 d8Q Bf5 Qc8 Bh7 Ba7+ Bb8 Bf2 Bf5 Ne6 Bg6 Nb3 Bg5 Rd6 a2+ Kb2 Na3 Qa1 Be3 Bh4 Bf5 Bd5 Bc2 Nd2 Ne4 Na7+ Rc6 Qb1 a1B+ Ka2 Bf6 Qa1 Be7 Nb1 B7g5 Nd4 Nh7 Be6 Nf8 Bd7 Rb6 Ne6 Ra6 Bc6+
bq1R1r2/2QN1b2/1r1b2bP/KQQ1rR1B/1n1q2B1/n2b2B1/1b2N1k1/3Q2N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 h4 a5 c4 g5 c5 d5 b6 f5 b7 a4 b5 f3 b6 Kf4 h6 Kg3 e5 f2 e6 d3 Kc3 g4 Kb4 d2 e7 a3 e8N d4 h5 f4 h7 a2 h6 d3 Qb3 d1Q Qa3 f3 Bg2 f1B Qa6 f2 Qa7 d2 Bh3 Bf5 Ka5 Bd6 c6 B1d3 c7 f1B c8B Ne7 Rh2 Rf8 h8Q Ng6 Qa6 Ne5 Qg7 Bg2 Nf6 Bg6 Qa7 Na6 b8Q Nb4 Qbc7 Rb8 Qgd7 Ba8 b7 Qb3 Qa4 d1B Rf2 Qc4 Rf4 Qd4 Nc3 Bb3 Nd7 Bbf7 Qc5 Qe8 Rb1 a1B Rf5 Bb2 Nce2+ Kh2 Qd1 g3 Ra1 g2 Bg4 Kh1 Bh5 Nc4+ Kb5 Qd8 Bf4 Na3+ Ka5 Qe8 Bg3 Qd8 Nh3+ g1R Rb1 Re1 Nhg1 Kg2 Rc1 Qh8 Rc4 Qdf6 Re4 Qd4 Re8 Rf1 Rd8 Rf4 Nb6 Re4 Be6 Re5 Nd7 Rc8 b8Q Qg8 Qcb7+ Rc6 Qbb5 Rb6 Qbc7 Re3 Rb8 Re5 Rg5 Rc8 Beg4 Qd8 Qa7 Qc7 Rf5 Rf8 Rd8 Qb8 Qac7
br3QnR/2Rn2bK/2n2QP1/2n1nRNN/QQn1qN2/1r1r2q1/1B6/3B3k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 f5+ Kd3 f3 e4 a4 g5 f2 b6 c4+ Ke3 f4+ Kf3 c3 b7 h3 g6 h2 b5 a3 b6 h4 Qe2 h3 Qe1 a2 Be2 f1N Qd1 c2 Nd2 Qg5 Bb2 c1N Qa4 Ne3 Bd1 Bg7 Ne2 Nc6 b8R Nd3 b7 Nc5 Rc1 a1N Rf1 h1N Rf2 h2 e5+ Kc7 e6 Kd6 e7 Nc4 e8Q Nd7 Ng3 Nb3 Nh5 Qg3+ Ke4 f3 Kf5 Nbc5 Ne4+ Kc7 Rf1 f2 Ng5 Kd6 Qe1 Ra5 Qeb4 Rb5 Ra8 Ke7 b8Q Bb7 Qe8+ Kd6 Rd8 Ba8 Qf8+ Kc7 d6+ Kb6 Qba3 Rb3 d5 Rd3 Re1 Rb3 Re5 Rd3 Qc3 Kb7 Qd2 f1R+ Qf4 Rg1 Qd2 Nf2 Qdb4+ Ncb6 Rc3 h1Q Rde8 Ng4 Rc4 Ndf6 d7 Rb3 d8Q Nfd7 d6 Re1 Ne6 Qe4+ Kg5 Ree3 Qdf6 Red3 Rf5 Nge5+ Bg4 Nd4 Nef4 Ndc6 Rc1 Nc4 Rc3 Nde5 d7 Kc7 d8N Nbd7 Qa2 Nce7 Nde6+ Kc6 Qaa4+ Kd6 Nh3 Kd5 Nef4+ Kd4 Rc8 Ke3 Rc1 N7c6 Rc7 Qgg2 Rh1 Qh2 Bd1 Qf2 Ne6 Qff3 N3f4 Kf2 Ng3 Qg2 Rh6 Qh3 Ngh5 Kg1 Rh7 Kh1 Rh6 Nge7 Rh7 Rg8 Rh8 Qg3+ Bg4 Nd4 Q8f7 Rb8 Qf8 Qh3 Bd1 Ndc6 Q6f7 Bf6+ Kh6 Bg7+ Kh7 Ng8 Ng5 Qg3 Qf6
q1n1n2Q/1N1BN2P/Q1N5/2Bb1q2/1Q1nnkqr/3Kb2n/1RRR2Nn/7r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 b4 c5 e4 a5 h4 g5 b6 f5 h5 f3 b7 f4 b5 c4 b6 g3 h6 c3+ Kc2 g2 Qd2 f2 Ra4 f3 Ra1 a4 Ra3 g4 Rh2 g3 Qd3 Nd7 b8R Ne7 b7 Nf6 Be3 Qa5 Ra2 a3 Be2 Bd7 Qa6+ Bc6 Kd3 f1N Rd2 f2 Nf3 g1Q Ne1 c2 Nc3 a2 Bg4 a1Q Bd7 g2 Rc8 Ra7 b8Q+ Rc7 Qb3 Ng3 Qb4+ Qc5 Rb8 f1N Rb5 Nc8 e5+ Ke7 e6 Kd6 e7 Nge4 e8Q c1N+ Kc2 Ne2 Kd3 Rh7 Rb8 Be7 Qh8 Ne8 Bf2 Bg5 Rb7 Rf7 h7 Rf4 Rb6 Rh4 Be3 Ke7 d6+ Kf7 d5 Kg6 Bd4 Be3 Rc2 Qca5 Bc5 Kg5 Rd2 Nd4 Rb8 Qh1 Rc2 g1N Rhd2 Rb7 Qb2 Qc1 Bf5 Rf7 Bb6 Qc5 d7 Qg2 d8N Neg3 d6 Nh2 d7 Qd1 Nd5 Qg4 Ne7 Nh3 Ba7 Rf6 Qc3 Qgd5 Rbb2 Ne4 Qb4 Rf7 Be6 Rf1 Bf5 Kf4 Bb6 Ba4 Be6 Qb7 Ndc6 Qcf5 d8N Rh1 Bd7 Qa8 Nb7 Bb3 Bc5 Bd5 Ng2+
b2bK2k/Q3nP2/2n2BB1/2Qr1Q2/NNn1NRb1/2n1q3/rb6/r2R1QBb b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg7 Kf4 c5 Ke5 a5 f4 h5 d4 a4 g4 e6 b4 h3 d6 a3 b6 a2 d5 e3 g5 e2 f5 e1N d7 h2 f6+ Kh7 b5 c4 b7 h4 b6 h3 f7 c3 g6+ Kg7 d6 c2 Ne2 Rh7 Ng3 Qh4 d8N Qh6 d7 Qe3+ Ne4 Ba3 Nc3 Kh8 Na4 Ne7 Kf6 e5 Nc6 Rh5 d8B Nf3 Bd3 Nd2 Qf1 Nc4 Nb4 Nbc6 b8Q Bg4 b7 Bb2 Qc8 Ra7 Bd2 c1N b8Q Ne2 Rd1 a1R Qcf5 Nc3 Bc2 Ra6 Qa7 Ra2 Rg1 h1B Rg2 h2 Rf2 Bg2 Rf4 h1B Be1 Ra5 Bf2 Rd5 Ke6 Ra1 Bg1 Rh2 Nd6 e4 Kd7 Qc5 Ke8 e3 Bb1 e2 Ne4 e1B Bd3 Qe3 Bc2 Rd3 Qfc5 Bh4 g7+ Kh7 Bb1 Rd5 g8Q+ Kh6 Qg5+ Kh7 Ba2 Kh8 Bb1 Nf5 Na2 Rd4 Qae7 Ba3 Nf6 Nb4 Qa5 Ba8 Qc5 Nc6 Nb4 Rha2 Be4 Rd5 Qea7 Bb2 Be7 Nh6 Bg6 Ng8 Qf5 Bg5 Ne4 Bf6 Bf8 Bd8 Bh6 Nge7 Bg5 Rd3 Bh4 Rd5 Bf6#
nk3nN1/r1P1Nb1b/2rr1RRQ/b1B4r/4q2B/5bKR/1NN1b3/1Bn1Q3 b - - 0 1 illegal: No possible last move, all moves rejected
br1bRRq1/Br3b2/4N1kb/3nb3/4B1K1/NQq2B2/1QqqP3/1Bn2Q1N b - - 0 1 illegal: No possible last move, all moves rejected
2BN3n/1QBnq2N/1Qb1qQ2/b2B1n2/r1nQ4/1q3r2/R1P1RnR1/2qk2K1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 Kf7 f4 Kf6 Kf2 a5 b4 h5 b6 e5 b7 d5 b5 a4 b6 h3 Qe2 d3 Nd2 h2 Rb1 e4 Rb5 e3+ Kg2 a3 Qf3 d4 Qd1 h4 Rc5 h3+ Kg3 a2 Nb3 a1Q Ra5 e2 Kf2 d2 Nf3 d3 Rg1 h1Q Ra2 h2 Nc5 Rh3 Ng5 Qhd5 Nce6 Nh6 Rg2 h1N+ Kg1 Qe7 Nd8 Nd7 b8Q e1Q b7 Rf3 Ba3 Q7e6 Bd6 Qb3 Bc7 Nf7 Re2 Qh4 Bh3 Ra4 Rg2 Ng3 Nh7+ Kg7 f6+ Kg6 g5 Kh5 g6 Nf5 g7 Bb4 g8B Qc1 Qa8 Ba5 b8Q Nh8 f7 Bb7 f8R Bc6 Re8 Qhe7 Qb6 Kh4 Qab7 Kh5 Qf1 d1N Qff2 d2 Qfd4 Nf2+ Kh2 d1N Kg1 Nfe3 f5 Nc4 f6 Nde3+ Qd1 Qe5 f7 Nf5 f8Q Kh4 Bd5 Q7e6 Rh2 Kg3 Rg2+ Kf4 Qf6 Q5d6 Q6a6 Ke3 Bg4 Qde7 Bh3 Qcb2 Qdd4+ Ke2 Qab6 Ke1 Reg8 Qc1 R8g6 Nd3 Re2+ Kd1 Rgg2 Qe4 Q7a7 Nc5 Be6 Ng7 Qa1 Nf2 Bd5 Q4e5 Bd7 Nf5 Qab7 Q5e6 Bc8 Nd7 Qad4+
5b2/q1qkR2B/5K2/3r3r/2BN1N1r/3QR1Qn/P2NrBbq/Rq2n1rB b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 f5 Kf3 b5 e4 c5 g4 h5 d4 c4 e5 b3 g6 h4 d6 b4 e6 c3 e7 b2 g5 c2 g7 b3 d5 h3 g6 h2 Be3 c1Q Bh3 Qc2 Bb6 Bb7 Ba7 Nf6 g8Q Qdc7 g7 Rh4 Qe1 Nh5 Qd1 Na6 Bg2 Kd7 Be3 Nc5 Nh3 Re8 Bf2 Nd3 Nd2 b1Q Re1 h1R Re3 b2 Qf1 Rh2 Bh1 Rd8 Qe2 Qg1 Qd1 b1Q e8B+ Kc8 Bf7 Kd7 Qf1 Q2c5 Bg6 Qa7 Bh7 Rg2 Qe2 Qh2 Qf1 Nb4 Qd3 Nc2 Qh8 Rg1 g8B Re8 Qg7+ Re7 Qg3 Ne1+ Ke2 Re8 Ng5 Re5 Ne6 Rg2 Nd4 f3+ Kf1 f4 Bf7 Kd8 d7 Ke7 d8N Kd7 d6 Rd5 N8e6 Ba8 Bg1 f2 Ke2 f1R+ Bf2 Rfg1 Bfg8 Nc2 Kf3 Ne1+ Ke4 f3+ Qg4 Nf4 Qg3 Nh3+ Nf4 Rdh5+ Bd5 Rh6 Kf5 R6h5+ Kf6 Bb7 Qg8 Rgg5 Bc4 Rd5 Qg3 Rg2 Bg1 Re2 Bf2 Ba8 Bg1 f2 Re7+ Kd8 d7 f1R Bf2 Rg1 Re3 Rdg5 Re7 Bg2 Re3 Rd5 Re7 Qca5 Re3 Kc7 d8R Qc3 Rde8 Kd7 R8e5 Qca5 R5e4 Q5c7 Re7+
1bbBkq2/3r2RN/4nrbQ/2qQ1Nn1/4q1Bb/RP1R3N/N1b4q/2K4B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 c5 g4 a5 d4 f5 Kd2 h5 d6 a4 d5 a3 b3 c4 g5 f3 g6 h3 b6 f2 g7 c3+ Kc2 h4 e5 a2 e6 f4 b7 h2 e7 f3 Ne2 h3 Qd4 Nd7 b8Q Ngf6 g8N Nh7 Qbb6 Ng5 Nf4 Rh7 Be2 f1B Nh6 f2 Nf5 Nc5 Bg4 Nce6 Rg1 h1Q Qdc5 h2 Nh3 Ra6 d7+ Kf7 d6 Bd3+ Kd1 f1B Qd5 c2+ Kd2 Qe8 d8R Qe4 d7 h1Q Nc3 Qh2+ Rg2 Bfe2 Ba3 Bd1 Kc1 Bg7 Qbc6 Qf8 e8B+ Kg8 Bd6 Be5 Be7 Bb8 Beh5 Rg7 Bf3 Rh7 Bhg4 Kf7 Rg1 Rb6 Bh1 Ra6 Rb1 a1Q Na2 Qad4 Ra1 Qc5 Bf6 Rh6 Be7 Ra7 Qcd6 Rf6 Qf4 Nh7 Qh6 Ng5 Rg3 Qg7 Rg8 Qf8 d8N+ Ke8 Rg7 Rd7 Nf7 Qec4 Nd4 Bg6 Bd8 Qce2 Rd3 Qe4 Kb2 c1B+ Kb1 Be3 Nf5 Bf2 Kb2 Bc2 Kc1 Nf3 Nfg5 Bh4 Nh7 Nfg5 Nb4 Qh8 Ra3 Qhf8 Na2
Rb2r3/QB2rQ1K/1r2qrnN/N2k2B1/1q1b2P1/n5R1/b4BbN/R3N1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 f5+ Kf3 h3 e4 h2 b6 h4 b7 c4 b5 a4 b6 h3 Be3 c3 Bd3 c2 Na3 c1Q Bf2 Qd2 Qb3 Nc6 b8N Be6 b7 Nge7 Be1 Qb4 Bf2 Ra6 Nc2 a3 Ne1 Na5 Nc6 Nc4 Na5 a2 b8Q+ Qc7 Bc2 Rb6 Qa7 Qd7 Bd3 Na3 Ba6 Qe8 Bb7 Ng6 Qc4 Bg8 Qf1 Qe6 e5+ Kd7 Qc4 Bd6 Qb3 Bc7 d6 Bb8 d5 Bf7 Qc4 Re8 Qb3 Kd8 d7 Kc7 d8N Kd7 Rc1 a1B d6 Bd4 Ra1 Bg8 Nf7 Re7 Ke2 f3+ Kd3 f4 Ke4 Re8 Nh6 Re7 Bg3 f2 Ngf3 f1B Bf2 Bg2 Rg1 h1R Qa2 h2 Qb3 Bf1 Rg3 Rg1 Qc4 h1R Nh2 f3 Qc7+ Ke8 d7+ Kf8 d8B Bg2 Qc4 Ke8 Qb3 Kd7 Qa2 Qd5+ Kf5 Qe6+ Kg5 Re8 Kh5 Bf7 Bg5 Kc7 Bfe3 f2 Qd5 f1R Bf2 Bg8 Qf3 Re7 Qf7 Kd7 Bfe3 Rf6 Bf2 Qeb3 e6+ Kd6 Ba8 Re8 e7 Qe6 Bb7 Qe2 Qh7 Ba2 Qg8 Qe6 Qf7 Rd8 e8R Rd7 Ng8 Re7 Kh6 Ke5 Kh7 Kd6 Nf3 Re1 Rc8 Rhg1 Nh6 Re5 Ne1 Re2 Rc6+ Kd5 Rc8+ Rc6 Nf1 Re8 Kg7 Bf4 Qd7+ Qed6 Kh7 R2e3 Ba6 Rb6 Ra8 R3e5 Qg7 R5e7 Qf7+ Qe6 Nh2 Bb8 Bb7+
q4qr1/NN1b1Q2/RKB1B3/rn2nQ2/R2BPk2/1bbq1B2/1q3b1R/b5N1 b - - 0 1 illegal: No possible last move, all moves rejected
4b1k1/5b1Q/B1N1rr1q/1n2qQRP/n1K1b3/r3BQ1N/2Qr2R1/1bb1BR2 b - - 0 1 illegal: No possible last move
5RB1/r1q1BN2/4N3/1K1bnP2/B1RQr3/2b2qkq/2q2nQq/r1rRN1B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 f4 Kd6 b4 e5 g4 h5 d4 c5 b6 a5 g5 e3 Kd3 a4 Kc4 a3 g6 h3 f5 h2 b5 a2 g7 e2 b7 e1R b6 h4 Be3 e4 Qc2 h3 Qa4 Ra7 Bf2 e3 Nc3 e2 Nf3 Rc1 Qe8 e1Q Qe2 Rh4 Bg1 Nh6 g8B Nd7 b8R Qg3 b7 Ng4 Ne1 Nf2 Kb5 c4 Na4 c3 Nc5 c2 Ne6 Re4 Qg4 Qf3 Qg2 Bh6 Rb1 a1R Rb4 Bd2 Rc4 Bc3 Bd3 Ke7 d6+ Kf6 d5 Ne5 d7 Qc7 d8N Bd7+ Rc6 Be8 d6 Bg6 d7 Bf7 Nf8+ Be6 Rc4 Bd5 Bf1 Qg3 Ra8 Kg5 b8B Kf4 Nf7 Qf3 d8Q R7a2 Qg6 Ra7 Qc6 Kg3 Ne6 Rd1 Bd3 c1Q Bc2 Qd2 Qdd6 Rdc1 Ba4 Qdd1 Qdc5 Qc2 Qd4 Nd1 Be3 Nf2 Rf1 h1Q Qb7 Qd8 Bd6 h2 Be7 Qc7 Rf8 Qhg2 Rg1 h1Q Qc6 Qh2 Rf1 Nd1 Bg1 Qgh1 Rf2 Qh3 Rd2 Nf2 Rd1 Q1h2 Qcb6 Re3 Qd2 Re2 Qbd4 Re4 Qe2 Qfd3 Qf1 Qf3 Qg2+
q1r1b1R1/1k1N4/n1r1rQ1R/b1BP2n1/2nNB2R/1NnK4/2QQ2r1/2q2n1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 e4 f5 b4 a5 g4 c5 b6 a4 b7 Kc7 g5 f3 b5 f4 e5 a3 e6 c4 g6 a2 e7 f2 e8R h3 g7 h2 Ne2 h4 Kc2 h3 Nd2 c3 Nc4 f3 Nd6 Ra6 Ne4 Bb4 Qd2 Nf6 g8N Nh7 Rb1 a1R Bb2 Ba5 Bg2 f1N Kd3 f2 Re6 c2 Rh6 c1Q Ngf6 Re6 Nd7 Ra2 Ba3 Ne3 Rb4 f1N Nec5 Na6 b8R Ng5 Be4 Nc4 Nb3 Qf8 Ra8 Kb7 b6 Rc6 d6 Rg8 Ne5 Bd7 d5 Be8 d7 Rgg6 d8Q Rge6 Qf6 Qg8 Rg1 h1N Nd7 h2 Ned4 Nhg3 Rh1 Ne2 Ra4 Nc3 Bc5 Bg6 Re8 Qh8 Rg8 Be8 Qe1 Rg2 Qd2 Kc8 b7+ Kc7 Rg1 h1R Qc2 Rh5 Rh1 Rh4 Qff2 Rf4 Qfd2 Rf8 Rb4 Bg6 Ra4 Rc8 Rb4 Be8 b8Q+ Kd8 Qb5 Kc7 Ra4 Bb4 Qa5+ Kb7 Qd8 Ba5 Qe7 Qe5 Qf6 Qb8 Ra1 Qa8 R1h4 Qa3 Rd1 Qc1 Re1 Nfe3 Rg1 Nf1 Rgh1
4BNb1/2Qnb2r/1Bn1Q1Q1/NP1K1Q1b/R1r2rqr/2k5/1Nbb2R1/q2R4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 b4 c5 g5 f5+ Ke5 a5 g6 a4 d6 a3 d7 f3 b6 f2 d5 f4 g7 h3 b7 f3 d6 a2 Qe1 h4 Be3 h2 Nd2+ Kc3 Nh3 c4 Nf4 h3 Nd3 Nc6+ Kd5 Rh4 b8N Be7 Nb2 Ra4 Bb6 Rh7 Rg1 h1R e4 h2 e5 Ba6 e6 Qc8 Rd1 a1Q d8R Rh4 Bh3 f1R Qe4 f2 Rg2 Bb5 Nb3 Nf6+ Kc5 Ba6 g8Q Nd7+ Kd5 Rh7 Rd4 Rc1 Qe5 f1B Qf5 Bd3 Na5 Bc2 Qgg6 Rhf1 Bg4 h1B Bh5 Rf4 b5 Bb7 Qg8 Rh4 Be8 Rf1 Qgg6 Rff4 Re4 Ba8 Rg4 Bf3 Rg2 Bh5 Rd4 Nc5 Nd7 Rb4 Nf8 Nd7 Nb7 Kb3 Re4 c3 Rd4 Rc4 Na5+ Kb4 Rd1 Bb1 Rd4 c2 Rd1 c1B Rd4 Bg5 e7 Bc2 Rd1 Kc3 Qge6 Nc5 d7 Bd2 Qeg6 Qa6 Rb8 Qc8 d8Q Nd7 Qc7 Bb7 Ra8 Bf6 Bf7 Bg5 e8Q Bf6 Qe2 Be7 Ne6 Qg8 Nf8 Bc8 Qee6 Bb7 Qh6 Qg4 Qhg6 Bc8 Qe1 Nc5 Nb3 Bd7 Ra4 Be8 Na5 Nd7 Be6 Bf7 Qee4 Bg8 Bf7 Rh2 Qee6 Rh4 Be8
k2N1RK1/4rr1B/1b6/P4Q2/1B3r1B/br1r2bR/n3nqN1/q2QRBQb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 b5 Kh5 c5 f4 Kc7 g4 Kb7 a4 c4 d4 e4 d6 e3 f6 c3 d7 b3 d5 e2 f7 e1B g5 b2 g6 b4 g7 c2 f5 b3 f6 h3 a5 h2 d6 Nh6 g8B Bg3 Nh3 Qb6 d8R Ra7 d7 Na6 Ng1 Ba3 f8Q Nb4 f7 Na2 Qg4 Qf2 Qgg7 Ka8 Bb5 Nf5 Bc4 Nd4 Kh6 Ne2 Be3 c1B Nc3 b1R Bg5 b2 Nh3 Be3 Nd5 Rd1 Nb4 b1R Nc6 Rd3 Nf4 Bb6 Bh4 Rbb3 Ng2 Rc7 Rhe1 h1Q Qc5 Qhg1 Rf8 Ra7 d8Q Re7 Qf6 Qh1 Kg7 h5 Qff5 Rh7+ Kf6 Rg7 Bh7 Rg4 Qdd5 Rf4 Nd8+ Bb7 Kg7 Qhg1 Kg8 Qgf1 Bf6 h4 Qcd4 h3 Bh4 h2 Ba6 Qf3 Qg1 h1R Rac1 Rh3 Rc3 Q3f2 Qdd7 Rdf3 Qd1 Rd3 Re8 Rdd7 f8B Rf7 Bb4 Rde7 Rf8 Bc6 Ne3 Bh1 Ng2 Bh2 Rc6 Rhd3 Re6 Bg3 Re3 Bh2 Rh3 Bg3 Bc5 Qd4 Bc4 Qff2 Bb4 Qa1 Qc1 Rdd4 Rd1 Nec3 Bf1 Rd3 Re1 Ne2 Qd1
1bbr1RK1/r5Nr/R1qn2bP/6r1/1QRb4/N1QB1bB1/2nQq1R1/5Nk1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 g4 Kf4 f2 b6 g2 Bb2 c3 Rh3 c2 Ne2 g1B Qe1 c1Q+ Qd2 a3 Rh1 a2 Qe3 g3 Rh4 g2 Ng3 Qe8 Kg5 f4 Bd3 f1B Na3 Na6 b8R f3 b7 Be2 Nf1 Ne7 Kf6 f2 Rg4 Qb5 Kf7 Qcc6 Bc1 Bf3 e5+ Kc7 d6+ Kb6 e6 Rh7+ Rg7 Nf5 e7 Nb4 e8N Nc2 d7 Bd6 d8R Bf4 Qe5 Nd6+ Kg8 Qbc4+ d5 Kc5 Qe1 Kd4 Qa5 Bfh2 Bf4 Bg3 Rc1 a1R Rdd7 B3h2 Bg3 Ra7 Rc7 Rb1 Re1 Rd1 Re6 Qa2 Ra8 Qb2 b8Q Qa2 Ne3 f1B Qbb4+ Qac4 Rb8 Bf2 Rg5 g1R Ng7 Bh3 Nf1 Bf5 Rf6 Bg6 Rf8 Be3 Rb6 Rg2 Ra6 Beg1 Nd2 Ke3 Qc3 Q4b5 Qab4 Bf2 Be4+ Ke2 Nf1 Rd2 Bd3+ Ke1 Be5 Bd4 Bf4 Kf2 Bg3+ Kg1 Rg4 Qe8 Rc4 Qbc6 Rg5 Qe2 Rg4 Nf7 d6 Rd1 d7 Nd6 d8Q Rd2 Be1 Bf4 Rg5 Rg4 Bg3 Rd1 Rh5 Rg5 Rh2 Nf7 Rf2 Bde5 Bf5 Bb8 Qa4 Be3 Qab4 Bc5 Qdd4 Rd3 Qe3 Rd8 Qed2 Nd6 Bd3 Bd4 Rg2+
rB3bRK/n1kN3b/b1r1P3/3b4/5q1r/RBNQrQ2/1nR1QR1q/2N4b b - - 0 1 illegal: No possible last move, all moves rejected
2n3q1/RQ2Bb2/KPQ1q2q/b1B1NR2/1qR4r/nQ2rBk1/1N3b2/2b2Bb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kd3 c5 Kc4 f5 e4 g5 b4 a5 h4 a4 h5 g3 b6 f3 Kb5 c4 b7 c3 h6 f4 h7 c2 Ba3 c1B Qb3 g4 Nd2 f2 Qa2 g2 Rb1 g3 Rh2 f3 Ra1 Ne7 Rh4 Nd7 Qb3 Nb6 b8R Be6 e5+ Kd7 d6 Nec8 d5 Bf7 Rh5 Nc4 Rf5 Bg7 Rb6 Qg8 Rc6 Bf6 Rc5 Bd8 Ra2 Rb8+ Ka6 Ba5 b5 Rb7 Bb4 a3 b6 Rb8 Ra1 a2 Rc6 Na3 Bc5 Rb7 Nc4 Rb8 Nb2 Rb7 Nh3 g1B Nf4 g2 Ng6 Rc7 Bd3 f1Q e6+ Kd8 d7 f2 Be2 Qe1 Ne5 f1Q Bd3 Qf4 Bf1 Rb7 Rc7 Qfb4 Rc6 Qgg4 Rc7 Re8 h8Q Bf2 Qh1 g1B Qe4 Qed2 Qec4 Qdg5 Qb5 Qh6 Qc6 Rb8 Ra7 Qg8 Rb1 Bce3 Rc1 a1Q Rc4 Qae1 Qb7 Bc1 Qc6 Nd6 Qb7 Ke7 d8B+ Kf8 e7+ Kg7 Qc6 Nc8 d6 Qe2 d7 Qee3 Ned3 Qee6 Qb7 Kg6 Qc6 Rf8 e8B Rb7 Bg5 Kh5 d8Q Re7 Bd7 Rfe8 Qdc7 Rd8 Be8 Rd4 Q7b7 Kg4 Bf6 Kg3 Ne5+ Rd3 Bg5 Re3 Bf6 Rd7 Bfe7 Rd4 Bd7 Re4 Be8 Rh4 Bd7 Qeg6 Be6 Qf6 Bd5 Qe6 Bf3
krnQK1N1/R3BB1b/RPr5/3rN3/3bB2r/7q/nb5Q/Bb1rqN1R b - - 0 1 illegal: No possible last move, all moves rejected
nn2NrB1/3Nb2R/b4rbr/q2B4/QBQN1k2/K1R2n2/1QB1P2b/2q4r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 c4 Ke5 Kc2 h5 Kb3 f5 g4 d5 c5 a5 g6 f3 g7 a4+ Ka3 f2 g5 d3 c6 d2 b6 h4 b7 h3 c7 h2 g6 f4 Bh3 f1R Qb3 d1Q Qc2 d4 Bf5 f3 Bh3 d3 Bf5 f2 Nd2 Rh6 Ngf3+ Kf4 Nc4+ d2 Nd4 Ne7 g8B Nd5 g7 Be7 Nd6 Nb6 b5 Qe1 Bb2 Qc1 Bd5 d1B g8B Ra6 Bfh7 Na8 b6 Rf6 Qb3 Bc2 Qb4 Bg6 Ne8 Qd6 Ra2 Qdc5 Ra1 Qa5 Ra2 Bcf5 c8Q Bd3 Qc4 Rf8 Rg1 h1R Rg3 Rh6 Re3 Rfh1 Rh3 Nc6 b8N f1N b7 Nh2 Nd7 Nb8 Rg3 Raf6 Ra1 Qc2 Bc3 Nf3 Rc1 Qd2 Rh3 Qc2 Be1 Qd2 Rc3 Qc1+ Ka2 a3 Qa4 Bge4 Kb3 a2 Bf5 a1B Ka2 Rhg6 Rh7 Rgh6 Bg6 Bb2 Kb3 Bba3 Ka2 Bad6 Bf5 Na6 b8Q Be5 Qb2 Nb8 Rb3 B5d6 Bb4 Be5 Ka3 B5d6 Qc8 Ba6 Rc3 Bb1 Bc2 Bc7 Bcb3 Bg6 Bd1 Kg4 B1b3 Bh2 Qc4 Kf4 Bc2
Rnq1bR1B/3N3q/2R2R2/1rB3Q1/2Kb1n2/1B1Nk2N/rP1b1b2/Q3rnr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 d4 Kd6 Kd2 a5 Kd3 c5 e4 g5 h5 f5 h6 c4+ Kc3 a4 b6 f3 h7 f2 b7 a3 Qb3 g3 Qc2 a2 Bd2 g4 Bh3 f1R Qa4 f4 Na3 g2 Be3 f3 Rc1 a1Q Nc2 f2 Nb4 g3 Be6 Bd7 Nd3 Qb1 Qa1 Be8 Rh6 Ra2 Rf6 Re1 Nh3 f1N Rc2 g1R e5+ Ke7 Kb4 c3 Kc4 g2 Bf7 Bh6 e6 Kd6 Rc1 Qd7 e7+ Qe6 Bf2 c2 Be3 Bg7 Bf2 Bc6 e8R Ne7 Rf8 Ng6 Be3 Rg8 h8B Be8 Bf2 Nf4 Be3 Kc7 Bf2 Qd7 d6+ Kc6 Be3 Qc8 d7+ Kc7 Be6 Kc6 d8R Kb6+ Kb3 Kc6 d5+ Kb5 d6 Kc6 Bf5 Kd5 Be6+ Ke4 d7 Kf3 Bc5 Ke2 Rh6 Bd4 Rhf6 Ke3 Kc4 Rg5 Bg8 Rh1 Bd5 g1B Be6 Bf2 Bd5 Na6 b8N Rhg1 Bf7 Qc6 Rc8 Qb7 Rcc6 Qc8 d8Q Rd5 Rd1 c1B Nd7 Bd2 Rc1 Nb8 Rc3 Ke2 Ra3 Ke3 Ra8 Re5 Rf5 Rd5 Qg5 Re5 Rff6 Rd5 N3e5 Qh7 Nd3 Re5 Bh5 Rd5 Bd1 Rf5 Bb3 Re5 Be7 Rb5 Bc5
n4qr1/N1QK4/3R2Nn/Q4Qbr/B1r1bR2/2bB1B1P/1b1q1Br1/2q3Rk b - - 0 1 illegal: No possible last move, all moves rejected
1B1R2Rn/2kN3Q/R2rq1B1/1Qr1n1N1/1n3b1q/Q1qrr1P1/bq2B1K1/7B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 c4 a5 e4 h5 b4 d5 g6 Kd7 b6 d3 b5 f3 e5 f4 c5 d4 g3 h4 g7 a4 b7 h3 c6+ Kc7 e6 d2 e7 h2 e8B a3 Bh5 a2 Nc3 d3 Bg2 Ra3 Nge2 Ne7 g8Q Qd4+ Kf1 f2 Bgf3 Ng6 Qf7+ Nd7 b8R Bh6 Qdb3 d1R+ Kg2 f1N Qe7 d2 Ne4 Qb2 Nd4 Re1 Ra8 Re3 Qh7 d1R+ Be2 Qc3 Nf3 Rd6 Ne5 f3+ Kf2 Bb7 Rg8 Bf4 Ng5 Red3 Rg1 h1Q Be3 Qh4 Ba7 Ne3 Rgd1 Nc2 Kf1 f2 Kg2 Ra5 Qa3 Nb4 Rd2 Ne7 Bg6 Re3 Rad1 a1Q Ra2 Qab2 Raa1 Nc5 Ra2 Ncd3 Nd7 Ne5 Rd2 Nf5 Ra1 Nh6 Rd4 Nhf7 Rdd1 Rdd3 b6+ Kd6 Ra2 Rc5 Raa1 Ba6 c7 Bc4 c8B Ba2 b7 Kc7 b8Q+ Kc6 Qg7 Rh6 Qb5+ Kc7 Qh7 Nh8 Bb7 Qb1 Be8 Rhd6 Bg6 Qbc1 Kf1 Q1b2 Bh1 Qg4 Rd2 Qe6 Kg2 f1Q+ Kh2 R3d5 Nb6+ Rd7 Qb3 Bb1 Ra6 Ba2 Qa3 Qfh3+ Kg1 Qh4 Kg2 Rc6 Rd1 Rdc5 Rd2 Re7 Rdd8 Rd7 Qh5 Rdd3 Nd7 Rb6 Qh7 Rbd6 Bb8#
nr6/1B2k1rb/2Q1qB1K/q3b1N1/1qRP2N1/1nq1B2Q/br1r1NQ1/4B1R1 b - - 0 1 illegal: No possible last move
b2k1b2/q2B4/BN2n3/n4Pr1/bb1Q1BRK/3qnrRQ/R1NrB3/nQ6 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 a5 f4 e5 Kf2 h5 b4 a4 f6 e4 c5 a3 g5 a2 c6 e3+ Kf3 e2 b6 e1B b5 d3 f5 d4 b7 d2 b6 h3 g6 h2 g7 h4 Kg4 d3 c7 h3 Nc3 Rh5 Nd5 Nd7 b8Q Nc5 b7 Ne6 Nf3 Ra3 Nb6 Ne7 g8B Bd7 c8B Nc6 Nd4 Na5 Qg3 Ba4 b8Q Rg5+ Kh4 Rb3 Rg1 h1B Qe5 h2 Ba6 Ba8 f7+ Ke7 Qc2 d1N Be2 d2 Qb1 Ne3 Nc2 d1R Qd4 Bb4 Qh3 h1Q Rg4 Qb7 Rg3 Qa7 Bd2 Nd5 Bf4 Rf3 Rg4 Ne3 Rg3 Bg7 f8R Rd2 Rf6 Qd6 Rg6 Kd8 Bf7 Qd5 Be8 Bgf8 Bd7 Qb5 Rf6 Qd3 Rh6 Rg8 Rhg6 Rg7 R6g4 Rg6 Qdb2 Rg5 Qd4 Qc3 Qd1 Qc4 Rb1 a1N Rb2 Qb5 Qb1 Qd3 Ra2
2R1r1Nr/1r1B2QR/2b3kB/Q1K1P1q1/3n2R1/QB1bR1bq/1r6/qN2n2q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 Kf7 e4 c5 b6 f3 Ke3 h3 b5 f4+ Kd3 f2 Kc4 f3 g5 h4 d6 h2 d5 h3 b7 a4 d7 a3 d6 a2 b6 Ne7 Qd3 Na6 b8R Kg6 b7 Nb4 Qa3 Nc2 Ne2 Ne1 Nd4 Nf5 Nc6 Nd4 e5 Bh6 Kd5 c4 Kc5 c3 Bb5 f1B Be3 Qf6 d8R c2 d7 f2 Rg8+ Qg7 d8Q Bd7 Bc1 Bd3 Qda5 f1R Rbc8 Rf7 b8Q Be8 Qba7 Rb7 Ba4 Rb2 Bb3 Rb8 Be6 R8b4 Bd7 Rb7 Rf8 Qh7 Rf3 Qg8 Rg1 h1Q Rg4 h2 Re3 Qf1 Bd2 h1Q Bc1 Qfh3 Ne7+ Kg7 g6 Bf4 Bd2 Bg3 Bc1 Kh6 Bd2 Qg7 Ng8+ Kh5 Bc1 Qh6 g7 Qg5 Ne7 Kh6 g8B Kg7 Bd2 c1R+ Bc4 Rd1 Ng8 Kg6 Bb3 Rc1+ Nc3 Rd1 Rc1 a1Q Nb1 Bf7 Rc2 Bd5 Bc1 Bc6 Rh2 Q3f1 Rh7 Qfh3 Qd8 Rdd2 Qe7 Rf2 Q7a5 Rf8 Bd2 Re8 Qf8 Qh6 Qg7+ Kh5 Qc3 Qgh4 Qca5 Q4h3 Rf3 Ra7 Qf8 Rb7 Bg5 Kg6 Re3 Q6h4 Bh6+ Qg5 Qg7+
RQ2NN2/3bn1kq/2qQ1bBR/P2n3q/Q7/2b1B2N/R2bnK2/rrqQ4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 a4 c5 g4 e5 f4 b5 f6 h5 d6 h3 d7 h4 d5 b3 f5 c4 g5 e4 d6 e3 Qe2 b2 Qh2 e2 Qe5 b4 Bf4 c3 Bg2 b3 Ra2 c2 Ra3 c1B Qb5 h2 Bh3 Na6 Nc3 b1N Ra2 b2 Kf2 Bd2 Be3 Bg7 Nd5 Qc7 d8Q Nc3 d7 Qc6 Nc7 b1Q a5 Rb8 Bg2 h3 Qa4 Ne7 Be4 Qc1 Bb1 Rf8 g6+ Kg8 Qe8 Nb4 d8Q Nbd5 f7+ Kh8 f6 Bd7 Bf5 Rb1 Qb8 Rg8 f8Q Ra1 f7 Bf6 Qd1 e1B+ Kf1 Ne2 Bd3 Nc8 Qd6 Nce7 f8N Kg7 Be4 Bdc3 Bc2 Bed2 Kf2 Nc8 Qe4 Nce7 Qa4 Rh8 Nf3 Rh4 Ng5 Rb4 Bd3 Rbb1 Bf5 Kh8 g7+ Kg8 Rg1 h1Q Bg6 h2 Nh3 Qe4 Rg5 h1Q Rh5 Qe5 Rh6 Qg5 Bf5 Kf7 g8R Qh5 Rgh8 Qe4 Bg6+ Kg7 Qb2 Bfe5 Bh7 Qeg6 Nfe6+ Kf6 Ra8 Kf7 Nf8 Bf6 Qb8 Qg8 Be4 Qh7 Bg6+ Kg7 Ne8+
1r3BN1/4q1Q1/Rn1Rqb1P/3qrB2/5k2/qnNR1Q2/1Qn1nQ1K/B3b2b b - - 0 1 illegal: No possible last move, all moves rejected
q3RrNB/2R2B1k/1qn2Pb1/1b1qb3/1Qr1Nr2/B5R1/Q1r3B1/1bn2Q1K b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kg6 f4 e5 Kf2 h5 Kg2 a5 b4 c5 b6 h3+ Kh2 c4 d6 h4 b7 a4 f5+ Kh7 g5 e3 f6 c3 d5 c2 d7 a3 b5 e4 b6 a2 d6 e2 Bf4 e1R Nd2 c1R Ne2 e3 Bg2 Nc6 b8Q Nh6 b7 Nf5 Bd5 Rc4 Nc3 e2 Qa7 Nfd4 b8Q Qb6 d8R+ Bd7 Re8 Rf1 Nde4 e1Q Rg1 Nb3 Kh1 h2 Rc1 a1Q Qa2 Qd2 Rc2 Rf3 Rg3 Nc1 Qf1 Qdd4 Bf7 Qd5 Bd2 Bf5 d7 Rf4 d8B Bd6 Be7 Be5 Ba3 Rf8 Qb7 Rc8 g6+ Kh6 g7 Kh7 Qe7 Bg6 Qb4 Rc7 Ne2 Rc8 Nd4 Rc7 Nf5 Rc8 Kg2 h1B+ Kh2 h3 Ne7 Bf3 Ng8 Be2 Kh1 h2 Be3 Rf2 Bh6 Rf4 Rcc3 Bd3 Be6 Bb1 Bh3 Qb2 Rc2 Qa6 Rcc3 Qa8 Bg2 Qf2 Ne7 Qb6 g8B+ Kh8 Bf7 Kh7 Bg7 Rc7 Bh8 Rc8 Bh3 Rc7 Kg2 h1B+ Kh2 Bf3 Ng8 Be2 Kh1 Rc8 Rcf3 Rc2 Rc3 Bb5 Bg2 Nd4 Rcf3 R8c4 Rd3 Nc6 Rd1 Qe6 Rd7 Qd5 Rc7
1NNrk2B/1nq1b1nR/4Pr1Q/1q4Q1/b1b2qB1/1b5q/1RQ3B1/QK2R2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 a5 g4 c5 e4 f5 d4 h5 Kd2 a4 Kc2 a3 b6 c4 g5 a2 d6 c3 b5 h3 d5 h4 e5 f3 d7+ Kf7 d6 f2 b7 f4 b6 h2 Nf3 h3 Bb2 Nf6 Bg2 f1B Na3 Bb5 Nc4 Na6 b8Q Nh5 b7 Nc5 Nd4 f3 Qa7 f2 b8R f1B Nb6 Be7 Nc6 Qc7 d8Q Ng7 d7 Rh6 Qh8 Nb7 d8Q Be6 Nc8 Rf6 Qh6 Bfc4 Q1d2 Bed5 Rae1 a1Q Qd1 Qa3 Kb1 Qb3 Qa1 Ba4 Qc2 Be6 Qd5 Qb5 g6+ Ke8 Qdd2 Bcb3 Qdg5 Bec4 e6 Nd6 Rb6 Nb7 Nb8 Qf4 Rhf1 h1N Rf2 Nc5 Rb7 h2 Ra7 Nb7 Rfe2 Nh5 g7 Qc7 g8B Ng7 Bh7 Qf4 Bf5 Qc7 Qe4 c2+ Kc1 Bf8 Bg4 Be7 Kd2 Qf4+ Kc3 c1Q+ Qc2 Qc7 Rf2 Q1f4 Rfe2 Qe4 Kd2 Qef5 Kc1 Qff4+ Kb1 Ng3 B2f3 h1Q Bg2 Qh3 Qc5 N7h5 Bf1 Nh1 Qd2 Rf8 Bh8 Bf6 Nc6 Nd6 N8e7 Qca5 Bg2 Rd8 Nb8 Bh4 Rd7 Qc7 Nc8 Nb7 Rh7 Be7 Qcg5 Rf6 Qd3 Ng7 Rb2 Rd5 Qdf5 Rd8 Qc2
4R1n1/qN2Pb1q/N2NqrRb/1K1n2rB/1nr1B2B/Q5QB/1Qn2q2/3k4 b - - 0 1 illegal: No possible last move
2nKb1q1/1Prn3n/1bN4Q/1q5R/1N4B1/qBNr1RQ1/5n1R/1Rb2kBb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b4 c5 g4 a5 b6 h5 b5 a4 g5 h3 g6 h2 g7 a3 b7 f3 d6 a2 d7 h4 Ke6 f4 d5 h3 b6 f2 d6 f3 Bd2 Ne7 g8B Rh7 Nc3 Ra3 Rb1 a1Q Nd5 Rd3 e4 Qa3 Be2 f1N e5 f2 Be3 Nd2 Bg4 f1Q Nb4 Ne4 Ne2 Nf6 Nc3 Rf7 Bd4 Nh7 Qd2 Qe2 Rhf1 h1B Bg1 h2 Rf3 Bh6 Qc1 Be3 Qd2 Bf2 Qg5 Rg7 Qh6 Kd4 Bf7 c4 Bg8 Na6 Bf7 Qg8 b8Q Bb7 d8R Nc8 Kd7 Nc5+ Kc7 Nd7 e6 Bc6 e7 Qe5 e8R Qb5 b7 Be3 Ncd5 c3 Re5 c2 Nc3 c1B Bb3 Bf2 Rh5 Re7 Rf4+ Ke3 Rdf8 Kd2 Kd8 Ke1 Rf3 Kf1 Rfh3 Rf7 R3h4 Bb6+ Qc7 Ndf6 Rh3 Be8 d7 Bd5 R3h4 h1N Rh2 Rg7 Rf7 Nf2 Rf8 Bh1 Rf7 Be3 Qg3 Bc5 Kc7 Ba7 d8N Nd7 Ndc6 Bc5 Kd8 Ba7 Qc7 Bb6 Rf3 Rg5 Nd4 Rc5 Rf4 Rc4 Rf3 Ba7 Qcd6 Rc7 Qg3 Bb6 Ndc6
2B1N1n1/3bQK2/1kPb3q/1n1Q4/NnR2B2/B4QRr/2Nn1nnb/1b2r2N b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 Kh5 a5 f4 e5 g4 a4 c4 a3 b4 e4 b6+ Kb7 f6 d3 f5 a2 g5 d4 b5 e3 c5 h3 f7 d2 f6 e2 g6 e1N g7 h2 Bh3 d3 Nc3 Bd7 Ba3 Nf3 Rc1 a1B Nge2 Nc6 Ng3 Nb4 Na4 Bd6 f8Q Bae5 f7 Qf6 Rg1 h1N Rc4 Nf2 Qe7 Re8 Nh1 Bh2 f8Q h6 Qb3 d1N Rg3 d2 Qff7 Qf4 Kg6 h5 Qfe6 Qh6+ Kf7 h4 Qd5+ Nc6 Qbd3 Ne3 Qf1 d1N Qe2 Ne1 Qef3 Nc3 Bf5 h3 Bg4 Nf6 g8N Nf1 Be6 Ng2 Bf5 Ka8 b7+ Ka7 b8N Nd2 b6+ Kb7 Na6 Nb5 Nb4 Rh7+ Rg7 Rh8 Nc2 Rh7 Qd8 Re1 Qe7 Ka6 b7 Nb4 c6 Rh8 Nc5+ Kb6 b8B Qh4 Nh6 Ng8 Ng4 Qh6 Rg6 Bhf4 Nf6 h2 Ne8 Bfe5 Ng3 h1B Na4+ Ka6 Nf1 Bh2 Ng3 Ka5 Ba7 Ka6 Be3 Ka5 Bf4 Ka6 Nc5+ Kb6 Rg7 Rh7 Na4+ Ka6 Qfe2 Be6+ Kf8 Qh5 Re4 Nh4 Rc4 Be4 Qf3 Ng2 Nd4 Bb1 Nc2 Qg5 Rg6 Rh3 Nh1 Qh6+ Rg7 Bc8 Kf7 Ka5 Rg3 Ka6 Be4 Bg4 Bf5 Ka5 Nc5 Kb6 Bc8 Bd7 Na4+
1n1N1K2/1BP1R2B/4R3/1k2bb1b/5QnQ/1N3bQb/bBn1r2n/1q2N1rQ b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 a5 Kg5 h5 Kg6 e5 Kf7 d3 c4 e4 f4 d4 b4 a4 g4 e3 g5 e2 c5 e1N f6 a3 b6 Kc6 f5 d2 b7 d3 g6 h3 g7 a2 Nf3 h4 Bg2 h2 Bb2 Kb5 c6 h3 c7 Ne7 g8B Bg7 Bh7 Ng6 Qc1 d1B Nbd2 Be2 Nb3 Bf1 Qh6 d2 Qh4 d1B Rc1 a1N Rc6 Bfe2 Re6 Bd3 Rg1 h1B Qg3 Ka4 b5 h2 b6 Kb5 Rf1 Ra4 Rf2 Ra7 Rfe2 Rg8 Re7 Ra6 R2e6 Ra2 Qh4 Nac2 Qg3 Nd7 b8N Bf1 Nc6 Nb8 b7 Qd3 Nd8 Bh8 Nh4 Bh5 Nf3 Rg7+ Ke8 Ne5+ f7 Ng4 f6 Qd1 Qh4 Qb1 Kf8 Bd3 Qg3 Bf5 Qh4 Nce3 Qg3 N1c2 Ne1 Nf1 Bd5 Bf3 Be4 h1B Bd5 Na6 b8Q+ Bb7 Qh4 Nfh2 Qa8 Bc8 Bb7 Nb8 Qa3 Bhg2 Qd6 Bh3 Qdg3 Nb4 Ke8 Rg6 f8Q Nc2 f7 Be5 Qh6 Bd7+ Kf8 Bdc6 Qhf4 Bcd5 Ke8 Bc4 f8Q Bcd5 Q8h6 Bc4 Bc1 Rb2 Kf8 Rg5 Nc5 Ba2 Nb3 Nce3 Qg6 Nh6 Qg2 Re2 Qf1 Nc2 Qh1 Rg1 Qgg3 N6g4 Bb2
1K6/NBQbk3/RQ2nn2/3rQR2/R2q2bP/4q1B1/1bR2rnp/NqrN4 b - - 0 1 illegal: No proof kernel
2n1b1r1/Q1b1nR2/r4rQ1/4Bq1B/1qNBQqp1/R1N2P2/3knK2/Q4bR1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b4 Kf7 h4 Kf6 c4 Ke5 c5 Ke4 h5 g5 f6 d5 c6 a5 h6 e5 h7 a4 c7 a3 b6 g3 b7 a2 b5 g4 b6 d3 f7 d4 Na3 d2+ Ke2 g2 Nb5 Qd5 Rh5 Nc6 b8B Nge7 b7 Na7 Qa4 d1R Rh3 Rg8 h8Q Bd7 c8R Be8 Rc7 Nac8 Rh7 Ra6 Nf3 Bg7 Rb1 a1Q f8Q Rd2+ Ke1 g1N Bc4 d3 Rh3 Ne2 Qf7 Qad4 Bb2 Qd7 Rc1 Qf5 Qg6 Rf6 Bc3 Ra2 Bf7 d2+ Kf1 d1B Nd2+ Kf4 Nc4 e4 Ke1 Qde5 Bd4 e3 Nc3 Bh6 Qa8 Raa6 Ra1 Bc2 f3 Bca4 Rh1 Bab5 Rg1 Bg5 Qhg7 Bh4+ Kf1 Bg3 Ra3 Qee4 Na4 Nc3 Bb6 Re6 Q6f6 Nc6 Bh5 Qd4 Qgg6 e2+ Kg2 e1Q Nd6 Ke3 Rf7 Be2 Nc4+ Kd3 Bd6 N6e7 b8Q Qb1 Qbb7 Qb4 Qaa7 Bf4 Qe5 Rf6 Bb8 Qde4 Kf2 Bf1 Be3 Kc2 Qed4 Ne2 Qa1 Bd6 Nc3 Qef4 Bd4 Be5 Ne3+ Kd2 Qe4 Bd6 Bc7 Bc5 Bb8 Bb6 Bbe5 Bc7 Nc4+
n2r3B/1K6/Np1q1RQq/rPr1N1n1/n1b1QB2/2kq3b/3NB3/Q1R2b1B b - - 0 1 illegal: No possible last move
K1Q3NN/Np5B/1bRBn2q/Q2N3R/1Pbq4/3B1rr1/1bn4r/2k2Rqn b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 cxd5 f5 exf5 a4 Qb3 axb3 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 Kf4 d4+ Ke4 a4 h5 g4 e5+ d6 h3 f4 c6 d5 h2 f6 b2 g5 h4 a5 h3 a6 Qe8 Kb6 c5 g6 c4 f5 c3 f7 c2 a7 Bh6 f8N Qe6 f6 Bf4 g7 Qd7 f7 Nh6 g8B Na6 Ng6 Nf5 f8R Ne3 Nf3 Nc7 Nfh4 Ne6 Ne7 Kd4 Ra3 e4 Nc3 b1R Nhg6 Rb3 Bd3 Bh6 Bb2 c1B Rf2 Nc2 Ra6 e3 Bh7 e2 Ng8 Ke3 Ba1 Rb8 a8Q Kd2 Ka7 Bb2 Rc6 Qg7 d7 Be3+ Rb6 Qd4 d8N Bd7 d6 Bb5 d7 Bc4 Nc6 Rf8 d8Q Rf3 Qdc8 Rg3 Nd5 Rc3 Rf8 e1Q Rf2+ Kc1 Kb8 Qg1 Qa5 Qe4 Ra6 Bb6 Na7 Qd4 Ka8 Ra3 Be2 Raf3 Bd3 Bc5 Rd6 Bb6 Rc6 Qd1 Re1 h1Q Re5 h2 Rf5 Qdg1 Rh5 Ba3 Bc3 Bb2 Be1 Qhg2 Bc3 h1N Be1 Qh3 Bc3 Qg7 Be5 Qg4 Bb8 Qh6 Bd6 Qd4 N8e7 Rhf8 Ng8 R8f4 Nh8 Rh4 Ne3 Rhh3 Nd5 Rh2 Rf1+
8/1p1bRB2/1r1b1kn1/Pr6/b1Rq3B/2Qn2N1/2NqR1QK/qN1nr1BN b - - 0 1 illegal: No possible last move
1rBnbR2/n1B5/1Q3b2/QnnN4/1rNN1Q1q/1R1krP2/K1p5/2Q2nbB b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 Kd6 d4 e5 Kd2 h5 Kc2 a5 Kb3 c5 f3 a4+ Ka2 e3 g5 a3 b6 c4 b5 e2 b7 e1N g6 h3 b6 c3 g7 h2 Bg5 h4 Qd2 h3 Qd1 e4 Bf6 c2 Bg2 e3 Nd2 e2 Rb1 Nd3 Qe1 Ne7 g8B Nbc6 b8N Na7 b7 Nec6 Rb4 Bd7 Na6 Rh4 Qc1 e1R Bf7 Be8 Ne2 Nc5 Be6 Rb8 Rb3 Bg7 Bg5 Bf6 Nb4 Qe7 Bg4 Nd8 Bc8 Rf4 Rg1 h1N Bh6 Nf2 Bh1 h2 Rg8 Nfe4 Rf8 Qh7 Bg5 Qh4 Nc4+ Ke7 Bh6 Nd6 Bg5 Rg4 Bf4 Ndb5 Bc7 Re4 Ng3 R1e3 Ne2 Bd7 d6+ Ke6 d5+ Kf5 Nd2 Ke5 Nd4 Be8 Nc4+ Kf4 Bg2 h1N d7+ Re5 d6 Ng3 Bh1 Re4 Na6 Nf1 Nb4 Kg3 Nd5 Kf2 Ka1 a2 Kb2 a1B+ Ka2 Nf7 d8Q Bc3 d7 Bd2 Qe7 Nd8 Qe6 Bc3 Qb6 Bb2 Nf5 Ke2 Qa5 Bbc3 Nd4+ Kd3 Qb6 Ndc6 d8Q Rf4 Qd6 Nd8 Qa5 Rfe4 Rb1 Be1 Qdb6 Bf2 Rb4 Bg1 Rb1 Ra8 b8Q Rf4 Qd6 Rfe4 Qbb6 Rb8 Qf4 Ndc6 Na3 Ne6 Nb3 Rb4 Nd4 Nc5 Nc4 Nd8 Rb3+
1rn2nNn/1Q2n1r1/2QQNRb1/2R1b1Rb/3P1N1k/1p1Rn3/r3BK2/2q3B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kf7 f4 Kf6 g4 b5 d4 c5 a5 e5 a6 h5 a7 e4 d6 h3 d7 h2 Ra3 b3 Nf3 h4 Ra5 c4 Ng5 c3 Qc2 b2 Ra4 e3 Bd3 b4 Ra1 b3 Kf1 e2+ Kg2 e1N+ Kf1 h3 Bd2 Qc7 d8R Ne7 Rd5 Ng2 Rb5 Ne3+ Kf2 Nd7 Be2 Bg7 Rc5 Nf8 Rd1 h1R Raa5 h2 Ne6 Rg1 Bc1 h1B Rd3 Bf3 Rab5 Rb8 a8Q Rh7 Qb7 Rg2+ Ke1 Bd7 Ra5 Nc8 g5+ Kf7 f6 Kg6 f7 Kh5 g6+ Be5 g7 Kh4 g8N Rhg7 f5 Bh5 f6 Be8 Bd2 Qc6 Qc1 c2 Nc3 b1N Nd5 Nc3 Ndf4 Ncd5 Rab5 Nde7 Ra5 Nh7 f8Q Beg6 f7 Qc7 Qd8 Nf8 Qd6 Rf2 Qb1 c1N Qc2 Bf6 Rg5 Be5 Qcc6 Rh2 Rc5 Rf2 Bg4 Ne2 Bf3 Ng1 Bc1 Ra2 Be2 Nf3+ Kf2 Nh2 Kg1 Nhg4 Bd2 Nh6 Kf2 Nh7 f8R Nf7 Bc1 Nh8 Rf7 Nf8 Rf6 Qa5 Bd2 Qc3 Bc1 Nc2 Be3 Qa1 Kg2 Qc1 Bg1 Ne3+ Kf2
1brN4/4b1KQ/q5BN/Rb2n1Qr/1rQp2B1/N2N3n/1B1nPR2/k2n3n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 h4 d5+ Ke5 f5 c4 a5 b3 g5 h6 a4 h5 f3 b6 f2 c5 a3 c6 a2 c7 g4 h7 f4 b7 d3 h6 g3 Bg2 f1R Be4 d2 Nf3 g2 Qc2 g1N Ne1 d1N Na3 f3 Rh2 f2 Bg6 Ne7 Kf6 Nbc6 b8N Bd7 c8B Ne5 Qf5 Kc3 b4 Qe8 b5 Nh3 b6 Bb5 Qg5 Nf5 b7 Ng3 Bg4 Be7+ Kg7 Qc6 Nd3 Qa6 Nc6 Rac8 b8Q Nh1 Nd8 Re1 Qa8 f1N Rf2 Nd2 Qc6+ Kb3 Qe6 Rg1 Qg8 Rg3 Qf7 Re3 Qg8 Re4 Qe6 Rb4 Qc6 Rf8 h8N Rf5 Qe6 Kc3 h7 Kb3 Nhf7 Kc3 Rb1 a1B h8Q Bb2 Ra1 d4 Qf4 Rh5 Nh6 Bd6 Qh7 Bb8 Qc6+ Kb3 Qg5 Bc3 Rb1+ Ka2 Rb2+ Ka1 Qc4 Ra4 Rc2 Bb4 Rb2 Be7 Rb4 Be8 Rb5 Rb4 Ra5 Bb5 Bb2+
Q5Bn/1r2b1Qr/1B1R3r/1b1nN1q1/2p1Pbkb/B4n2/2RR1RKb/3N1Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 c5 h4 f5 d4 a5 d6 Ke6 b6 g5 d7 f3 b5 g3+ Ke3 f2 Kf3 c4 e3 f4 h5 Kf5 d5 a4 b7 g2 b6 a3 h6 g4+ Ke2 f3+ Kd2 a2 h7 g3 e4+ Kg4 Ke3 Ne7 d6 Na6 b8R Nc7 b7 Ra7 Rh6 Ng6 Nc3 Be7 Ba3 Ra6 Be2 f1R Rc1 a1B Rc2 Bb2 Qd3 Rb1 Nd1 Be5 Ra8 Qg8 b8Q Rb7 d8R Bd7 Rh2 Bc6 d7 Bb5 Qc8 Rc6 Ra6 Qg7 Bf1 f2 Nf3 g1B Qa8 g2 Ke2 Rf6 Rd6 Nd5 Rf8 Qg8 d8B Bf4 Bb6 Qg7 Rd2 Qh6 Qb1 Qg5 Qa1 Rg8 h8Q Rg7 Rf7 Rh7 Qg7 Nh8 Rc2 Rfh6 Rff6 Nb4 Rdd2 Nd5 Rd6 Qg6 Qaf6 Qg5 Ne5+ Kg3 Rh5 Bh2 Rh4 g1B Bh3 f1N Be6 Bge3 Bg8 Bf2 Rg4+ Kh3 Rg2 Bh4 Rf2 Kg3 Rd4 Nd2 Ke1 Nf3+ Kf1 Kh3 Rdd2 Bh4g3 Qff8 Kh4 Kg2 Kh5 Ng6 Kg4 Qff7 Bh4 Qff6 Rc7 Ne5+ Kh5+ Kh1 Be3 Qe6 Bef4 Qh3 Ra7 Qf1 Rb7 Ng6 Kg4 Kg2 Rd7 Qb2 Rc7 Qg7 Rb7 Ne5+
1n4Qq/2BnP1n1/2r1RN1N/1B6/3Nn1B1/Q1r3r1/1Q1nK1kp/Rbb2B1b b - - 0 1 illegal: No possible last move
1rRQK1B1/QBP2rrn/3r1b2/1k1Qn3/1b1np2N/1b4RN/1r5q/RB2B3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 h5 g4 d5 b4 Kd7 c4 a5 f4 e5 c5 d3 Kc3 h4 b6 Kc6 f5 h3 f6 d2 b7 d4+ Kc4 d3 g6 e3 g5 a4 f7 e4 b5+ Kd7 Kd5 h2 g7 e2 g6 e1B b6 a3 Qb3 d1R Nd2 a2 Ndf3 d2 Ba6 Be7 f8Q Bf6 Nh3 Qc7 Nh4 Ra7 Rg1 h1R Rg3 Nc6 b8R Rh2 b7 Ne5 Ra8 Rf2 b8Q Rb7 Qc4 Rb2 Bb7 Rf4 Qa7 Qb8 Rb1 a1N c6+ Kc7 Qca6 Nc2 Ra1 Be6+ Kc5 Nd4 Qa2 Nh6 g8B Nhg4 g7 Bb3 Bd5 Rf5 g8B Rg5 Bc4 Rg7 Bd3 Rhh7 Qe8 Rf7 Bb1 Rhg7 Kb4 Kd6 Ka5 Kd5 Kb6 Kc4 Q2a5 Qd6 Qd5+ Kb4 Qee6 Qb8 Bh7 Qh8 Bg8 Qh6 Qdd7 Qf4 Kc7 Kb5 Qde7 Qf2 Kd8 Qh2 c7 Ng6 Kd7 N4e5+ Kd8 Nf8 Ke8 Nh7 Rg2 Rc2 Ba3 Rb2 Rg3 Rc1 Rc8 d1R Bc5 Bb4 Qd8 Rd3 Bb6 Rc6 Ba5 Rb6 Bd5 Rb8 Bb7 Ba3 Be1 Bb4 Nf3 Ndc6 Nh4 Rd6 Ba8 Nd4 Bd5 Ra2 Bb7 Rb2 Qd5+
R2N1R2/qP3nQQ/1pB1r2b/Q2bnbBB/2r5/1N1N2K1/rbB4n/k5b1 b - - 0 1 illegal: No proof kernel
8/q5bn/1RQK1k2/Q1nBR3/RN2Q1Nb/1R1rbnbB/1pbB1P2/3q1r2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 b5 Ke4 c5 Ke5 g5 a4 c4 d4 c3 h4 c2 f6 g3 a5 b3 d6 g4 a6 b2 a7 g2 d5 g3 d7 b4 h5 b3 h6 Na6 d6 Bg7 h7 Qb6 d8R Nc5 Ne2 g1N d7 g2 Nbc3 b1Q Ng3 b2 Bd2 c1B Nf5 Nf3+ Kd5 g1B Rh3 e5 Ne3 e4 Qe1 Kg6 f7 Bh2 f8R Bg3 Ng4 e3 Ra4 e2 Na2 Rb8 a8B Qa7 Rde8 Rb3 d8Q Nf6+ Kc6 Bf5 Re5 Bc2 Qa5 Rd3 Nb4 Rg8 h8Q Nh7 Rd8 Bf6 Rd4 Bfh4 Rd6+ Kf7 Bg2 Rd8 Qh1 e1B Bb7 Rd7 Qc8 Rd8 Kc7 Re8 Rb6 Qa1 Bg5 Bc3 Bd2 Bd4 Kd6 Kg6 Bh6 Bce3 Bd5 Qd1 Qc6 Rh8 Bf4 Bc3 Re6+ Bcf6 Re5 Bg7 Qe1 Bd4 Bd2 Be3 Nh2 Kf6 Qe2 Beh6 Qe4 Be3 Bf1 Re8 Be2 Beh6 Be1 Rd4 Bf1 Bgf4 Qd3 Nfg5 Bd2 Re7 Re3 Nf3 Bh3 Bfg3 Qc4 B6g5 Rb3 Rd3 Qf4+ Kg6 Rf5 Re1 Ng4 Rf1 Re5 B5h6 Qd4 Be3 Nh6 Kf6 Qc4 Bb1 Qe4 Bc2 Ng4#
b3K1n1/2B1bRRq/4kBnn/1B4r1/2N4R/rb2NnQP/1Qq2pn1/6QQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 c5 b4 a5 e4 f5 d6+ Ke6 h3 g5 e5 g3+ Kf3 a4 b6 a3 d7 a2 b7 g2 b5 c4 b6 c3 Bb2 c2 Nc3 c1Q Nd5 Nh6 Bb5 Qc2 Ne3 Nc6 b8Q Rg8 b7 Qe7 d8Q Qh7 Qb6 Ra3 Bc3 Be7 d5+ Kf7 d6 Be6 d7 Bb3 d8B Ke6 Rc1 a1N Bc7 Rg6 Qa8 Rg7 b8Q Rg6 Qe2 g4+ Kf2 g3+ Kf3 Rg5 Rf1 Qc1 Qb2 Nc2 Nc4 Ne3 Ne2 Qc2 Rhg1 Bd6 Bd4 Ne7 Nc3 Neg8 Qc5 Be7 Nd1 Qc3 Ke2 Qc1 Kd3 f3 Bc3 f4+ Kd4 f2 Qf3 Nd5 Nde3 Qcc2 Qd1 f3 Qda1 Kf7 e6+ Kf6 Qab1 Nf4 Qe1 Ng6 Qc6 Bd6 e7 Ke6 Qca8 Bb4 e8R+ Be7 Qeb1 Qe2 Rf8 Qc2 Rc1 f1B Rf7 f2 Qab7 Qd1+ Ke4 Be2 Bf6 Qc2+ Kd4 Bf3 Q1a1 Bd8 Qab1 Bd5 Kc5 Be7+ Kb6 Bf3 Rcd1 Be4 Rd4 Bf3 Rh4 Bd5 Rh1 g1N Rh2 Nf3 Qg1 Be4 Rg2 Ne1 Q7a8 Bd3 Kb7 Be4+ Kc8 Bd5 Qaa7 Ba8 Qab7 Bc5 Kd8 Bf8 Rh2 g2 Ke8 Be7 Qf3 Ng4 Qg3 N4h6 Qh1 g1N Rg2 Ngf3 Qgh2 Re5 Q2g1 Rd5 Rg5 Ng2 Rg3 Nf8 Rgg7 Rg5 Bd8 Ng6 Qg3 Bc5 Bb6 Be7 Bc7
K2N1R2/2B3br/k1Q3nn/1b2q1RB/2n5/nbN1pPnr/1N5N/Q1qR3B b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 e5 b4 h5 g4 a5 d4 c5 g5 Kc7 g6 Kb7 b6 a4 b5 a3 d6 a2 d7 c4 g7 c3 d5 c2 d6 h3 Be2 h4 Nc3 h2 Nf3 h3 Rg1 h1B Rg5 Ra7 Nh2 Nc6 Bh5 Qf6 d8R Nh6 g8B Ne7 d7 Bg7 Rf8 Ng6 Bd2 c1Q Bd5+ Qc6 Rb1 a1N Qc2 Qb2 Rd1 Nb3 Qb1 Bg2 Qa1 Na5 Bc1 Bf1 d8N+ Kb8 b7 Be6 Bd2 Qd6 Be1 Qc1+ Bd2 Kc7 b8N Kb6 Na6 Bd3 Bc6 Bb3 Nc5 Bdc4 Nd3 Qe6 Nf1 h2 Nb2 h1N Nh2 Ng3 Ba8 Re7 Bd5 Ka7 b6+ Ka6 b7 Bb5 b8Q Rh7 Qc7 Rf7 Bf3 Rf4 Bh1 Rh4 f3 Rh3 Qd7 Qe8 Be6 Qe7 Bg4 Qe6 Bh5 Qd6 Kf2 Qc7 Bf4 e3+ Kg2 e2 Kf2 e4 Qc6+ Ka7 Bd6 e1N Be5 Qe7 Bd6 Qe5 Bc7 Qb1 Ke3 Nc2+ Kd2 Na3 Ke3 Qe8 Re5 Qc1+ Kd4 e3 Kc5 N5c4 Rg5 Nd2 Kd6 Qe5+ Kd7 Nc4 Kc8 Qf4 Qe4 Ka6 Kb8 Qf5 Ka8 Qe5 Qc6+
1q2b2b/R2B1k1r/4NBr1/2BRrr2/1q1r1nQ1/Q2PRK1p/B1Q3n1/2b4N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 b4 f5 e4 h5 g4 a5 d6 a4 d7+ Kf7 e5 h3 d3 c4 b6 f3 b7 c3 b5 a3 g5 a2 b6 c2 Be3 c1B Qa4 h2 Qd1 f4 Bg2 h4 Nh3 Ne7 Na3 Ra5 Nc2 Bg7 Bc5 Nf5 Nd4 Rh7 Ne6 Nc6 b8B Ne3 b7 Nd4 Qc2 Ne2 Re1 h1R Bbd6 Qb6 b8Q Rg1 d8R Bh8 Qa7+ Bd7 Be7 Be8 Rd5 Qb4 Bh1 Rb5 Qa3 Ng2 Bf6 Ra5 Rb1 a1R g6+ Kg8 g7 Kf7 Rb3 Qb8 Rb2 Ra4 Rb5 Rd4 Ra5 Rb1 Ra6 Rb5 Ra8 Ne3 Ra5 Rg6 Ra8 Ng2 Ra4 Ng3 Re3 Nh5 Ra7+ Bd7 Ng1 h3 Ne2 Ra5 Ng3 Rb5 Kf1 f2 Ke2 Ra5 Kf3 f1Q+ Qf2 Qe1 Qd2 Qf8 Qc2 Qb4 g8Q+ Ke8 Ke2 f3+ Kf2 Nhf4 Qg7 Rgh6 Qg5 Kf7 Qg4 Ne1 Bg2 Qfb8 Nh1 Rg6 Kg3 f2 Be4 Neg2 Kf3 Kg8 Bf5 Rg5 Bg6 Bc6 Be8 Rg6 Bd7 Rb5 Ng7 Ra5 e6 Bb5 e7 Kf7 Ne6 f1R+ Qf2 Re1 Qc2 Ba4 Bb5 Re2 Bc4 Be8 Ba2 Ra6 Rd8 Rad6 Rdd7 R6d5 Rd8 Rdh5 Rd5 Rf5 Ree5 Ba4 e8B+ Kg8 Bd7 Kf7 Bc8+ Bd7 Nc7 Be8 Bd7 Rd2 Re1 Re2 Ne6 Ree5 Re3
6b1/1Bb1r3/q1r1kQn1/5b2/n3N1Qp/K1R2bqN/1Q1NrBP1/1RbR2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Ke7 b4 h5 d4 c5 Kd2 a5 Kc2 f5 Kb3 c4+ Ka4 c3 b6 c2 b7 f3 d6+ Ke6 e5 f4 b5 f2 d7 h3 b6 h2 Be2 f1B Nf3 h4 Bd2 c1B Be3 Ra6 Ra3 Rh7 Ng1 f3 Nd2 f2 Rc3 Qg5 d8Q Re7 Bf3 Be2 Nh3 f1B Bf2 Nd7 b8R Qg3 b7 Rc6 Qb6 Bh6 Qb2 Nc5+ Ka3 a4 Be4 Bf4 d5+ Kd7 d6 Bf3 Rg1 Ke6 d7 h1R d8Q Bc4 Qe2 Ba2 Rd1 Re1 Qf1 Re2 Qg1 Rd7 Qg5 Ne7 Qh5 Ng6 Qg4+ Ke7 e6 Bc7 Bd5 Kd6 e7 Bc4 e8Q Rde7 Qg8 Bf5 Qg7 Ba2 Be4 Bg8 Qf6+ Kd7 Kb4 a3 Bd5 a2 Ka3 a1Q+ Kb4 Qa6 Ra8 Rce6 b8N+ Kd6 Bb7 Qc6 Ra1 Qa6 Rb1 Na4 Ka3 Bh7 Nd7 Bg8 Bc8 Kd5 Nc5 Rb6 Nce4 Rc6 Qf8 Ke5 Bb7 Ke6 Qf6+
RbB3RN/1nn5/4b3/3R1q2/1Kbr2PB/BQp1b1N1/3k2Nr/qN1nb2Q b - - 0 1 illegal: No possible last move
1B1R4/2b3q1/1N1RNNB1/2k2K2/3bn1p1/PQ1b4/qnbBr1b1/QQ1Br2r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 g5 h4 b5 a3 f3 h6 f2 h5 b3 h7 b4 h6 b2 Nh3 g4 Nc3 b1R Na4 b3 Ng5 c4 Nb6 b2 Qb3 c3 Bd2 Nd7 Kf5 c2 e4 c1B Be2 f1B Bd1 Bg7 Rh3 f6 Rd3 Qc7 Ra2 Bg2 e5+ Ke7 e6 Kd6 e7 Ne5+ Ne6 Nc4 e8B Bb7 Bg6 Re8 Nf4 Re2 Nh5 Bc6 Ra1 Ba4 Ra2 Bf8 Ra1 Qg7 Ra2 Be7 Ra1 Bd8 Ra2 Kc7 d6+ Kc6 d5+ Kc5 d7 Bc7 d8Q Ra1 d6 b1Q d7 Bb2 Qb8 Bd4 Rc2 Qa2 d8N Rc1 Qb1 Bb3 Rb2 Bc2 Rb4 Nb2 Ne6+ Kd6 Ra4 Kc6 Ra6 Kd6 Kf4 f5 Nf6 Kc6+ Kg5 f4 Kf5 f3 Ra8 f2 Qb7+ Kb5 Rd8 f1B Qd5+ Bc5 Qb3+ Kc6 Ne4 Nf6 R3d5 Rg8 h8B Re8 h7 Re1 Rd4 Bfd3 R4d7 Bd4 Rd5 Qf7 Bg7 Rh1 h8Q Re7 Bgh6 Qg7 Bhf4 Re1 Bg3 Re2 Qh1 Re8 Qg1 Rh8 Qa1 Rh1 R5d6+ Kb7 Rc6 Rf2+ Bf3 Bb8 Qf1 Bf4 Qe2 Rce1 Qed1 Ka6 Qdb1 Bfe5 Qc3 Kb5 Bh2 Bf4 Bd1 Rfe2 Bg3 Bg5 Be5 Bf4 Bb8 Bc7 Rcd6 Nh5 Kg5 Ng3 Nf6 Ne4+ Kf5 Be5 Nf4 Bd4 Qb3+ Kc5 Ne6#
2rB4/BnNb1n1q/3bR3/1n1Q1BQQ/KRp2N2/P3q1b1/5bbk/2Q1N1r1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 d4 Kf6 Kd2 e5 Kc2 b5 Kb3 c5 f4 g5 d6 e4 d7 e3 d5 c4+ Kb2 b3 d6 g3 a3 g2 h5 b4 h6 g4 h7 e2 Nh3 g1Q Qd5 e1B Nd2 g3 Nf3 g2 Bd3 Qe7 d8B Bg3 d7 Na6 Be3 Nh6 Re1 Nf7 Ba7 Rg8 h8Q+ Rg7 Rh2 Qe3 Qh5 g1B Ree2 Nc5 Ne1 Nb7 Bb1 Qf3 Re5 Rg5 Rd2 Qe3 Re6+ Kg7 Rd1 B1f2 Bc2 Rg6 Rb1 Qh4 Bd3 Bd6 Bc2 Bh2 Bd3 Rg1 Be4 Bhg3 f6+ Kf8 f5 Rb8 Qhd1 Qh7 Nf4 Kg8 Qc1 Kh8 Ba5 Kg8 d8N Bd7 Bc7 Rc8 Bc2 Ng5 f7+ Kg7 f6+ Kh6 f8Q+ Qg7 Qh8+ Qh7 Bab6 Nf7 Bf5 Kg5 Ba7 Kh4 Re7 Be8 Nde6 Ba4 Bd8 Bd7 Bg6 Kg4 Nc7 Kh4 Re6 Kg4 Ne2 Kh3 Bf5+ Kh2 Nf4 Qh3 Ka1 b2+ Ka2 Qh4 Qh5 Qh3 Ra1 b1B+ Kb2 Be4 Rb1 b3 Qg5 Ne5 f7 Qh7 f8Q Bg2 Qh8 Nf7 Qhe5 Qb6 Kc3 b2 Qd3 Qe3 Qa5 Be5+ Kb4 Bd6+ Qc5 Bb5 Qd5 Bd7 Ra1 b1N Ra2 Bf1 Rb2 Nc3 Rb3 Nb5 Ka4 Bg2 Rb4 Ra8 Qf3 Rb8 Qcd5 Rc8 Qfh5+
Q1B2BK1/q3Q3/N1n1N1Bq/N6q/Bp5r/QP1b2r1/1bqq4/nRn2Rk1 b - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 Qc2 a3 Qb2 axb2 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 b5 f4 Kg3 a4 Kf2 g4 c5 f6 h5 d6 e6 f7 h3 d7 c4 f5 h2 a5 h4 f6 c3 a6 h3 d5 c2 g5 Qa5 d8Q Ne7 d6 Qa4 g6 Nd5 g7 Ne7 g8B Qa2 d7 Ra7 Nc3 b1Q Na4 Rc7 a7 Ba6 a8B Rc3 Bh6 c1N Nc5 Bg7 f8N Rg3 Nf3 Qbc2 Bc6 Nd5 Bh7 Ne3 Qe7 b4 d8Q Bc4 Rb1 Qa7 Na6 Bd3 Ba4 Nc6+ Kd6 e5 Ke6 e4 f7 Ba1 Bg6 Bb2 Nd2 Rh7 Rg1 h1Q Nc4 h2 Qa5 Qf3 Bg2 h1Q Bh3 Qh5 Bg7 Qh6 Bg4 Q1h5 Rf1+ Kg2 Bf5 Nd1 Bg4 e3 Bf5 e2 Bg4 Nd4+ Kf6 e1Q Ne6 Ne3 f8Q Qed1 Kf7 Qdd2 Qa8+ Nc6 Kg8 Kh2 Rf2+ Kg1 Bf8 Qcd1 Rf7 Nc2 Rf4 Na1 Rf1+ Kh2 Qag5 Q1c2 Na5 Rf7 Qe5 Rf4 B4f5 Rh4 Bg4 Ba3 Qb2 Kg2 Qa2 Bb2 Qa3 Kh2 Ng5 Kg2 Bc8 Kh2 Ne6 Kg2 Rf4 Kg1 Rf1+
3n1r1B/QBn1b2N/1QR1b3/1b1NqnP1/R6p/2QBrn1q/2QR1k2/K5n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 Kb2 a5 e4 a4 b6 c4 g5 c3+ Ka2 f3 b5 h3 b7 f2 b6 a3 Nd2 f4 Ne2 h4 Qc2 h2 Bb2 f3 Nf4 Qd7 Be2 Ne7 Rhc1 Na6 b8Q+ Nc7 b7 f1B Qa7 h1N b8Q f2 Qbb6+ Nc6 Qbb3 Qh3 e5+ Ke7 e6 Kd6 e7 Ng3 e8B Be6 Qc4 Nd8 Bc6 Be7 Bb7 Re8 Q4d3 Nf5 Ne4+ Kd7 Nf6+ Kd6 Nh7 Rf8 Qb1 c2 Qc3 Rb8 Rd1 Rc8 Rd2 Rb8 Qd1 c1N+ Kb1 Rc8 Qdc2 Ra8 Ra2 Re8 Ka1 Rc8 Bc4 Ne2 Bd3 Ng1 Be2 Kd7 d6 Rb8 Bh5 Bb5 d5 f1N Be2 Nh2 Rd1 Rf8 Rc1 Ke8 d7+ Kf7 d6 Nhf3 Nd5 Kg6 Bc6 Kh5 Bb7 Nf7 d8R Kg4 d7 Kg3 Qb4 Rc8 Bh8 Re8 Qbc3 Rb8 Rc8 Nd8 Rd1 Rf8 Rd4 Kf2 Rb2 a2 Rbb4 Nc6 d8Q Ra8 Qd6 Nd8 Ra4 Rb8 Qdb6 Ra8 Qb8 Ra5 Q8a7 Ra6 Rab4 Ra3 Ra4 Rb3 Qca5 Ra3 Rd2+ Re3 Qac3 Ne8 Rc6 Nc7 Kb2 a1Q+ Kb3 Qaf1 Kb2 Qfg2 Kb1 Qgg3 Ka1 Qe5 Bd3+
B1n1B1bB/4N1R1/3Qn3/5KPk/p2NR2b/1qRrb1q1/1Q2bR1n/1r1b3Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 g4 f5+ Ke5 Kf7 e4 Kg6 b4 a4 d4 h3 b6 h2 d6 c4 d5 h4 d7 c3 d6 f3 b5 c2 b7 f2 b6 f4 Bd2 c1B Nc3 f3 Ra3 h3 Nge2 Qh4 d8Q Na6 b8Q Be6 b7 Be7 d7 Nc5 Rg1 h1B Bg2 f1B Nd5 f2 Rc3 h2 Nd4 Be2 Qdc7 f1N d8R Qh3 Qd6 Bh4 Rf8 Ne7 Rf2 Rd8 g5 Nc8 Ne7+ Kh5 Kf4 Bd5 e5 Ba2 e6 Qg3+ Kf5 Ra6 Bf4 Rb6 Be5 Be3 Bh8 Rb1 Bd5 Bhf3 Rgg2 Qh3+ Rg4 Qg3 Re4 h1Q Qc1 Qhg2 Qa8 Qh1 b8R Nh2 Rb7 Qd1 Qab8 Qb3 Qh1 Bd1 Rd7 Bfe2 Ba8 Qc4 Qb2 Qb3 Ra7 Rd7 Ng6 Rd8 e7 Ne6 e8B Rd7 Nc6 Rd8 Rg7 Rd7 Qc7 Rd2 Qd6 Rd3 Nd4 Nf4 Ne7+ Qf7+ Qf6 Bd5 Ng6 Qb7 Rf7 Qb3 Rg7 Bg8 Qd6 Ne6 Ne7+
4b3/3NnBbk/2bN4/R1r1rp1K/1BB1R1Q1/1nq1rP1b/5b2/2N1qNQQ b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 a5 c4 e5 d4 h5 g4 a4 b6 e3 Kf3 a3 g5 e2 c6 e1B b7 a2 c5 h3 d5 h2 d6 e4+ Kg3 e3 Kh4 e2 c7 Bg7 d7+ Kf8 c6 Qe7 Ba3 Na6 b8N Nc5 Bb4 Ra5 Nd2 Nb3 d8N f6 g6 Bh3 c8Q Rc5 c7 Qe3 Qc1 Ne7 Qb7 Kg8 c8Q Qc3 Qg4 f5 Nf7 Re5 Kg5 h4 Nd6 Rh6 Nd7 Re3 Rb1 a1R Qc6 Ra4 Ra1 Ra5 Ra3 Rc5 Ra5 Bf8 g7 Kh7 Qcf3 Rhe6 Kh5 R6e5 g8B+ Kh8 Qfg3 Bg7 Bf7 Kh7 Qb1 Na1 Ngf3 Nb3 Rg1 h1B Nd4 Bc6 f3 Bf2 Rh1 e1Q B1c4 Bf1 Qa1 h3 Qg1 h2 Ne2 Bh3 Nc1 Bf1 Bce6 Bfb5 Bc4 Ba4 Nf1 Bab5 Q1g3 Ba4 Rg1 h1B Q3h3 Bg2 Qh1 Bh3 Rg2 Bg3 Re2 Bf2 Qb1 Rd3 Re4 Re3 Nb6 Be8 Nd7 Bc6 Qa2 Bh4 Qag2 Bf2 Qgg1
b1Rqk1b1/N1BQ3q/1nq2r2/N3npq1/N3B1qP/3N2RR/Qb4BK/3r4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 g5 Kg2 a5 h4 f5 d4 c5 e4 c4 b4 f3+ Kh2 c3 d6 f2 d5 a4 b6 a3 d7+ Ke7 d6+ Kf7 b7 a2 e5 c2 b5 Rh6 b6 Nc6 b8N Nf6 b7 Nd5 Nc3 Nb6 Nge2 Rf6 Na4 Bg7 Bf4 c1Q Bg2 f1B e6+ Kf8 Rg1 Ne5 Qb3 Qc6 Nc1 Bc4 e7+ Kf7 Rb1 a1Q e8B+ Kf8 Be4 Bg8 Nd3 Qa2+ Qc2 Qf7 Qa2 Ra5 Rbc1 Rd5 Rg3 Bh8 Rh3 Qh7 Rg1 Bg7 Rgg3 Rd4 Ndb2 Rd1 Nd3 Bh8 Bf7 Bg7 Bfd5 Bh8 Na6 Bg7 b8R Bb7 N6c5 Ba8 Nb3 Bh8 Rg1 Bg7 Rc8 g3+ Kg2 g4 Na5 Bh8 Kh1 g2+ Kh2 Qe8 d8N Qee7 Rf1 Ke8 Rff3 Qed7 Rfg3 Qdc7 Ne6+ Qd8 Nd4 Bg7 Nb5 Bh8 Re3 Bg7 Na7 Bh8 Kg3 g1Q+ Bg2 Bg7 Be4 Bh8 Re1 Qe3+ Kh2 Qe2 Rg1 g3+ Kh1 Qg4 d7+ Kf8 Bf1 g2+ Kh2 Nf7 Bc7 Ne5 Rh1 Qg5 Rg3 g1Q+ Kh3 Qgc5 Bfg2 Qd4 Kh2 Bg7 Bef3 Qdg4 Be4 Qe8 d8Q Bh8 Qdd5 Qd8 Rf1 Ke8 Rff3 Bg7 Qb5 Bf8 Rh3 Ba3 Rfg3 Bc1 Qbd5 Bb2 Qd7+
7N/7R/3bkB1B/QB1RPq2/1q1p1b1r/rN1bb1n1/1KbNn2n/1Q2B1Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 h4 g5 c4 f5 Kc2 a5 e4 d5 b4 d3+ Kb2 a4 h6 f3 h5 a3+ Kc3 f4 b6 d2 c5 a2 b5 f2 h7 g4 b7 f3 h6 g3 c6 g2 c7 Ke6 b6 Ra3+ Kc2 Qd6 Kb2 Nf6 Bb5 f1N Ne2 Nh2 Qg1 d1B Nd2 Nc6 b8Q f2 b7 f1Q Rb1 Bd7 c8Q Nd4 Qd8 Nh5 Qa5 Qf5 Ra1 Ng3 Rb1 Rg8 h8B Bc2 h7 Rg4 Bf6 Rh4 h8N Qc5 Qba7 Bh6 b8B Bf4 Qb7 Be8 Ba7 Bg6 e5 Qb4+ Nb3 Bd3 Nc3 Nde2 Bf2 d4 Ne4 Bh7 Be1 Bg6 Qf1 g1B Nd2 Bf2 Qg1 B2e3 Nf1 Bc2 Bcd2 Bd3 Rc1 Bh7 Rc5 Bg6 Rd5 Bc2 Qbc7 Bd3 Qc2 a1B+ Kb1 Bb2 Bc1 Ra4 Nfd2 Ba3 Ka2 Qe7 Kb1 Bd6 Kb2 Ra3 Qb1 Qb7 Ba6 Qb4 Bc4 Ng4 Rh3 Nh2 Bb5 Rg4 Rh5 Rh4 Rh7 Be8 Nc4 Bd2 Ba4 Bg5 Bc6 Bc2 Ba4 Bb5 Nb6 Bbd3 Bb5 Bde3 Bcd2 Bf2 Nc4 Bh6 Bdg5 Be3 Nd2 Rh5 Bh4 Bhf4 Bhg5 Rh4 Bh6
R2B1q2/nb2QrN1/2qN2n1/nq1p3q/P2B1R1Q/2qB2R1/4Brk1/N2K2b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 f4 Kf7 c4 Kf6 a4 g5 h4 b5 h6 e5 h5 d5 h7 g4 c5 b3 h6 b2 c6 g3 c7 d3 Be2 e4 Nh3 g2 Ng5 g1Q+ Kd2 e3+ Kc3 d2 Kc2 b4 Nf7 Bc5 Ra3 Nc6 Qe1 b3+ Kd1 Bb7 c8B Qg6 Nd6 Nge7 Rh4 Rf8 h8R Rf7 h7 Qf8 Rg8 Na7 h8B+ Qfg7 Bd7 Raf8 Bdb5 Qh5 Bd3 Ng6 Rg4 Qh6 Rg3 Bb6 Ra1 Bd4 Na3 b1N Nc2 b2 Ra2 Na3 Na1 b1Q Rc2 Bc5 Rc4 Qb5 Re4 Nc4 Rd4 Ke7 f6+ Ke6 f5+ Ke5 Rf4 Na5 Qh1 Qh5 Qh4 Bb6 Ba3 Bd4 Bc5 Qgh6 Bb6 Qc6 Bg4 Bc5 Bd8 e2+ Kc2 e1Q Bge2 Qb5 Bg7 Qf2 Kd1 Qd4 Bh8 Qc3 Bg7 Bg1 Bh8 Rg7 f7 Qf3 f6 Qhh5 Ne4 Kd4 Nd6+ Ke3 Nc8 Kf2 Nd6 Re8 f8N Rf7 Ne6 Ref8 Rh3+ Kg2 Ng7 Re7 f7 Qcc6 Bc4 Qc3 Bd3 Qf5 Bh5 Re2 Re3 Rf2 Bhe2 Re8 f8Q Re7 Rh3 Rf7 Qfe7 Qff6 Ne6 Qf5 Bd4 Qh5 Rf8 Qh8 Re8 Qf8 Ng7 Rf3 Qg4+ Rg3 Bc7 Qcb2 Ra8 Qbc3 Qh5 Re3 Bg4 Nc8 Bd8 Rf3 Ke2 Na7 Qhh4 Rf2+ Ke3 d1Q Rhf3 Qdb3 Rh3 Rf3+ Ke2 Qa2+ Kd1 Rf2 Rhf3 Qab2 Be3 Qe5 Bd4 Qbc3 Rh3 Qg5 Bge2 Qh5 Rg3#
n2kn1q1/N1N4B/3N4/1p2Q3/3P2n1/1qrbQrR1/bB1Q2b1/1bQ1KRbR b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 b5 a4 h5 g4 e5 d3 c5 f6 c4 f5 h3 d6 e4 a5 c3 a6 e3 g5 e2 a7 h2 g6 b3 g7 c2 Na3 b2 Bg2 b1B Bf1 h4 Bg2 h3 Bc6+ Nd7 Be4 Nb6 Nf3 Be6 Nc4 Rc8 Bb2 c1N Nfe5 Na8 Nc6 Rh6 Rf1 h1B f7+ Kd7 f6 h2 Qd2 Bg2 Bh7 h1B Qe3 Rh3 Qe5 Be7 f8Q Rf3 f7 Nf6 g8R Ne8 Qh6 Bg5 f8Q Be3 d4 Bg1 Rg3 Bf7 Qhe3 Nd3+ Kd2 Qg5 Qh6 Nf2 Ke1 Ng4 Qd2 Qg8 Qhe3 Bfg6 Qc1 Bgd3 Qcd2 Nb6 a8N Rc7 Na7 Kd8 d7 Rc6 Nd6 Rc3 Nc7 Na8 Rf2 Ba2 Rd1 Bdb1 Qc1 Bf1 Rh2 Bhg2 Rh1 Nh6 Nd5 Bh3 Nc7 Bhf5 Kd2 Bfd3 Nf5 Bh3 Qf2 Bf1 Qee3 Bg2 Rf1 Ng4 Nd6 Qg6 Ne4 Ke7 Qfe1 Qg5 Qed1 Qg8 d8Q+ Kf7 Qd5+ Ke7 Qe5+ Kd7 Nd6 Kd8 Qcc2 e1Q+ Kc1 Rc5 Qc4 Qb4 Qdd2 Rc6 Kd1 Qb3+ Ke1 Rc5 Qcc2 Rc3 Qcc1
bQ2Q1Rn/1nK4k/1rB4b/p1P1Qb2/4B3/NN2R1Qb/nb3Nq1/2B2r1q b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Kf4 a5 Ke5 d5 b4 h5 f4 d3 c4 d4 g4 d2 c5 d3 f6+ Kh7 g5 h3 b6 h4 b5 h2 b7 h3 f7 Ra6 b6 Bh6 f8Q Bf5 Qb3 d1N Ra3 d2 Qg3 Nc3 Bg2 d1B Qe8 Bdg4 Bc6 Na2 Re3 Qd2 Na3 Qg2 Be4 e6 Kd6 e5 Kc7 Nc6 b8Q Nd8 b7 Rb6 Bc6 Ne7 g6+ Kg7 Be4 Rf8 Bc6 Kh8 g7+ Kh7 Be4 Ng6 g8B+ Kg7 Bgd5 Nh8 Bc6 Kh7 Nf3 Rf6 Rg1 h1B Ne1 h2 Nd3 Bh3 Nf2 Rf8 Qa8 Rf6 b8Q Nb7 Qa6 Rf8 Qe2 Rf6 Bb1 e4 Qe5 Be6 f5 Rf8 f6 Bef5 Rc3 e3 f7 Ng6 Qe1 e2 Re3 Nh8 Bbe4 Nc3 Qd1 e1B Qd7 Na2 Qde8 Bc3 Qgf4 Qf1 Rg8 Qg2 Qg3 Bb2 Ng4 Nd6 Ba8 Bg6 Bf5 Qf1 Bc2 Bc6 Be4 h1Q Bb7 Qfg2 Ba8 Bb5 Bab7 Ba6 Bbc6 Bb7 Q8e6 Rd8 Qe8 Ba8 Nf2 Nb7 Nb1 Bgf5 Na3 Bg5 f8N+ Kh6 Qc3 Rd1 Ne6 Kh7 Qce5 Rf1 Nd4 Bh6 Nb3
1K2b3/1br2RR1/1b2N2p/Bb3BP1/q2rq3/QN2N1Bk/2nNb3/R1nQn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Ke5 f5 g4 h6 e4 h3 d4 h2 b4 a4 b6 a3 d6 a2 d5 c4 g5 c3 b5 f3 b7 f4 b6 c2 Nd2 f2 Bg2 f1B Nb3 f3 Bd2 c1N Ba5 f2 Nf3 Bb5 Nfd2 Nf6 Rf1 Na6 b8Q h1B b7 Rh7 Qa7 Nb4 b8B+ Bb7 Qa6 Nc2 Bh3+ Ke8 d7+ Kf7 d6 Kg6 Be6 Qe7 d8R Nh5 d7 Nf4 Rc8 Ng2 d8N B7c6 Rc7 Be8 Qd6 Rg7 Qa3 Nge1 Kd5 Bf3 Bf5+ Kh5 Ne6 Kh4 Rd7 Bbe2 Kc6 Rh7 Bf4 Rd8 Kc7 Bg2 e5 Bb7 Bh2 Qb4 Rg7 Bc5 Bf4 Rd4 Kb8 Bb6 Bh2 Bg4 Bg3+ Kh3 Nf8 Qc4 e6 Qe2 e7 Qe4 Rb1 a1Q Ne6 Qb2 Ra1 Qa2 Qc5 Qa4 Qa3 Bec6 e8N Bb5 Nf6 Be8 Bg6 Be2 Ng4 B2b5 Ne3 Be2 Rg1 f1B Rg2 B2b5 Rf2 Bfe2 Rf8 Rh8 Rff7 Rf8 Rf4 Rf7 Bh7 Rfd7 Rff7 Rc7 Bf5+
1r6/1Rq2rQ1/bbB2kP1/Rbp5/3r1B2/1BNR2K1/2q2nN1/n1N1BQrr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 g4 h5 d4 f5 e4 a5 b4 c5 d6+ Kf6 d5 a4 d7 h3 d6 h4 b6 h2 b7 h3 b5 a3 b6 f3 Ne2 a2 Nbc3 f4 Bd2 Rh4 Nc1 Nh6 Bc4 Nc6 b8B Na5 b7 Qc7 d8Q+ Be7 d7 Nb3 Qg8 Bd8 Re1 h1R Re3 h2 Rd3 Rg1 Qf1 h1R e5+ Ke7 e6 Kf6 Rb1 a1Q e7 Qa3 e8B Qa2 Ra1 Qc2 Ra5 Na1 g5+ Kf5 g6 Kf6 Bb3 Ng4+ Ke1 f2+ Ke2 R1h2 Kf3 Rhh1 Qe2 f1B Be1 Nf2 Qh7 Be7 d8N Bd7 Qd1 Bb5 Ne6 Bd8 Bc6 Rhg4 Nd4 Ba6 Nf5 Rgh4 Ne3 Rhg4 Rd5 Bfb5 Ng2 Rgh4 Rd3 Rg4 Ba7 Rgh4 b8R Rg4 Rb7 Rb8 Bd2 Rgh4 Qf1 Rg4 Ke2 f3+ Ke3 Rd4 Be1 Qg7 Qh8 Bb6 Qg8 Qc7 Qh7 Nh3 Qg8 f2 Kf3 Qg7 Kg3 Qe7 Qe2 f1R Qh7 Rf5 Qf1 Nf2 Qg8 Ke5 Qf8 Rf7 Qh6 Kf6 Qh7 Rbf8 Bb8 Qd8 Bf4 Qc7 Qh6 Rb8 Qg7+
1N1r2Qb/4rBrb/k3RQpK/8/Nn1n1Q1B/q1R1q2P/b4r2/QR1Br3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 c5 e4 Kc7 e5 Kb6 h3 f5 d6 a4 d5 f3 Kg3 f2 Kf4 c4 d7 c3 d6 g3 e6 g2 e7 c2 Kg5 f4 Ra3 f3 Ne2 Nh6 Nbc3 Nf5 Nd4 Nc6 Be2 Ra7 Re1 Qe8 d8Q+ Rc7 d7 f1B Bf4 c1R Bg3 f2 Bh4 g1R+ Bg4 Kb7 b6 Bd3 b5 f1R Re6 Nb4 Nc6 Nd4 Rb3 a3 Na4 a2 Rc3 a1Q Qe1 Rh1 Bd1 Bh7 Qe5 g6 Qf4 Qf7 e8B Bg7 Qdf6 Qe7 d8Q Qa3 Bf7 Rf2 Qg8 Rcc2 Qc1 Re1 Qa1 Qe8 Qd8 Be5 Qf6 Re7 Kh6 Bd7 Qgg7 Rg8 Qf4 Rcd2 Qgf6 Kc8 b7+ Kc7 b8R Rg7 Ra8 Kb7 b6 Bc8 Rb8+ Ka6 b7 Bd7 Rd6 Bf5 Re6 Bb1 Rd8 Ba2 b8Q Nf3 Rc8 Rd8 Rc7 Nd4 Rb7 Nd3 Rb2 Nb4 Rb1 Rg8 Q6g5 Bh8 Qgf5 Rg7 Qf6 Qd7 Qa8+ Qa7 Qab8 Rdd7 Qe8 Rd8 Qg8 Qc5 Rcb3 Qe5 Rc3 Qe3 Nb8+
1N2b3/rR1Q4/b1Bq2pB/qqPRb2r/2N4q/BqR2n1N/1Q2k3/1K1n2R1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 b4 e5 f4 a5 c5 d5 h5 d3+ Kb2 g3 b6 d4 b5 d2 h6 Ke3 f6 g6 b7 a4 b6 d3 f5 e4 h7 g2 f7 a3+ Ka2 Nf6 Qg4 Nbd7 b8R Bd6 f8B Be5 b7 Nd5 f6 Nc3+ Kb3 a2 Kb2 Ra7 f7 Nd1+ Kb3 Qe8 Ne2 g1Q Rh3+ Qg3 Na3 Qf3 Rb1 a1Q Ng1 Kf2 Rh5 e3 Nc4 e2 Ba3 e1Q Bh6 Qc6 Qh3 Qd6 Bg2 Qad4 Qe6 Qh4 Nh3+ Ke2 Ka2 Nf6 f8N Qb5 Nd7 Ng4 Bc6 Nh2 Ra8 Nf3 b8R Ba6 Rb7 Rf8 Rg5 Rf5 Rg1 Rh5 h8Q Nc3+ Ka1 d1Q Rd8 d2 Rc1 Qdb3 Nb8 d1B Qd7 Bc2 Qf6 Bf5 Qh8 Nd1+ Rc3 Be4 Rf8 Bd5 Rf5 Bf7 Qf6 Be8 Qh8 Bg3 Rd5 Qd2 Rcd3 Qda5 Qb2+ Qc2 Rc3 Be5 Bd2 Qca4 Kb1 Qab3 Bh6+
Qq1bq2N/Qn1B1rQ1/3r1p2/1k2BN1n/R5bn/2P1qNq1/4R2q/4BKN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 e4 d5 h4 Kd7 b4 g5 h6 a5 h5 f6 e5 a4 h7 d3 b6 Kc6 b7 d4 e6 g4 h6 d2+ Ke2 g3 e7 a3 e8Q+ Nd7 b8B d3+ Kf3 g2 Kf2 a2 c3 f3 Rh4 Be7 Qh5 Nc5 Nh3 Nb7 Bh2 Ra6 Qg6 Bg4 Qg7 Qb8 Ng1 Kb5 Be5 Rd6 Rh2 Bd8 Qb3 d1Q Qa3 Qb3 Qa8 Qb2+ Nd2 Ne7 Be2 Rf8 h8N Qc2 h7 Nf5 Nf7 Nh4 Nh6 Rf7 h8N Qa4 Ke1 Qaa7 Nf5 f2+ Kd1 f1N Ke1 Qb6 Ndf3 Qe3 Bd2 Ng3 Qa7 Nh5 Qa8 Kc6 b5+ Kc5 b6 Kb5 Rc1 a1Q Rd1 Qa6 Ra1 Qaa7 Ra4 Qe4 Kf2 Qc6 Be1 Qe8 Bd1 d2 Bb3 d1Q Be6 Qc1 Ke2 Qf4 Kf2 Nc5 b7 Qg3+ Ke2 Qc7 b8Q+ Nb7 Bc8 Qac5 Qba7 Qb8 Nh3 g1Q Bd7+ Rc6 Rf2 Q1h2 Kf1 Qd4 Nhg1 Qe3 Bc8 Rb6 Re2 Rd6 Bd7+
3Rr2B/BrQK4/4P1N1/bB3q1B/R1rN1R2/b1r2n1k/qp3r1n/2Qb1N2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Kg4 f5+ Kf3 g5 a4 c5 h4 b3 e4 b2 d4 c4 a5 b4 a6 c3 a7 c2 d6 Ke6 e5 g4+ Ke2 b3 Kd3 f3 Kc4 g3 Kc5 f4 h6 Kf5 h7 Kg4 h5 g2 h6 Nf6 d5 Qa5+ Bb5 Qa2 Kb6 Nc6 Kc7 Nd4 d7 Ba3 d8Q Re8 Qf1 f2 h8N f3 Nd2 b1R Ne2 g1B h7 b2 d6 Rb8 Qe1 f1Q a8B f2 d7 Nf3 Ng6 Rb7+ Kc6 Qh3 h8B f1R Nd4 Rf2 Nf1 Qh5 Qe7 Qf5 Be3 Rc1 d8R Bh2 Qc7 Kh3 Qd1 Ng4 Rg1 Bg3 e6 Ngh2 Qd2 Bgd6 Qe1 Bdb4 Rg4 Bc3 Rf4 Ba5 Qb4 Bd7+ Kd6 Bc6 Qc5 Bd5 Kd7 Bb3 Qc4 Re1 Qc3 c1R Qd2 Rc3 Qc1 Rb6 Bd5 Bd1 Bdc4 Rb7 Be2 Nd2 Bh5 Ndf3 Nc6 Rc4 Bed4 Re3 Ba7 Rec3 Nd4 Qb3 Ra2 Bd6 Ra4 Qa2 Bc6 Ba3 Bb5
R1b1b3/1QbbKRb1/2q1pNkB/3B4/n2PB3/N1nBN1r1/2qR1n2/1Qr5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 b5 Kd4 c5+ Ke5 h5 g4 c4 d4 h3 a4 c3 f4 h4 f6 b3 a5 b4 d6 b2 f5 b3 d7 h2 a6 h3 a7 c2 g5 Qe8 d8Q Na6 Qd7 Bg7 Na3 b1N Bd3 b2 Nf3 Nc3 Nh4 b1Q Qb7 Nc5 Qf1 Rb8 a8B Nh6 Qe1 N5a4 g6+ Kg8 Ra2 Qc6 Rf1 h1B Be3 c1B Rd2 h2 Rf4 Bf8 g7 Kh7 f7 Qc2 g8B+ Kg7 Bh7 e6 Rff2 Rg8 f6+ Kh8 Bhf5 Rg3 Bfe4 Bg7 Nf5 Kh7 f8R Kg6 Qf1 Bg2 Bd5 h1B Qd1 Qc4 Kd6 Ng4 f7 Qc6+ Ke7 Bd7 Rf1 Rc8 Bh6 Nf2 Re8 Bf3 B5e4 Bh5 Rg8 Bb2 Qb1 Bc1 Rfd1 Qc4 Qd5 Kh7 Rf1 Nb5 Bg2 Nd1 Rdf2 Bf4 Rd2 Q2a2 Ne3+ Bg6 Rf3 Nf2 Bc6 Rc7 Ra8 Rc8 Qe4 Qd5 Bb7 Rc1 Bc6 Bc7 f8N+ Kg8 Nh7+ Bge8 Rf6 Nbc3 Nf5 Qc2 Rf7 Bc8 Nf6+ Kh8 Nh5 Kh7 Nf6+ Kg6 Bf3 Qb5 Qd5 Qa6 Qdb5 Bg2 Qb7 Qb5 Bfe4 Bf1 Bc4 Qb6 Ba6 Bb5 Bcd5 Bbd7 Bad3 Qc6 Ne3+
3Qn1rb/2NQ4/2bP1R1b/1n1Qb1N1/2Nq1R1r/2Bn2k1/2pb2B1/K3R1qQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 b4 Kd6 d4 c5 Kd2 a5 Kc2 f5 Kb2 g5 e4 c4 h5 g3 h6 a4 b6 g2 b5 f3 b7 f4 b6 g4 h7 g3 Qb3 a3+ Ka2 c3 Bc4 c2 Rh6+ Nf6 Nh3 g1B Qd3 g2 Rh5 f2 Bb2 f1Q Bc3 f3 Nd2 f2 Re1 Bh2 Ka1 g1B Rh6 a2 Ng5 Na6 b8N Nc7 b7 Be5 Na6 Bd7 b8R Bc6 Rb4 Nb5 Nc7 Bg7 Rg6 Bh6 Qf3 Rg8 h8Q Ra4 Qf5 Qg2 Bf1 Qg3 Bh3 f1N Bg2 Ne3 Qf3 Ng4 Nc4+ Ke7 Qd3 Ne8 Rf6 Nf2 d6+ Kd7 Qd1 Nd3 d5 Be3 Qf3 Bd2 Qd1 Bg7 Qh1 Bh6 Qf3 Qa8 Qfh5 Qa7 Qf3 Qd4 Qf5+ Kd8 d7 Ke7 Qf3 Qgf2 Qfh5 Qg1 Qd1 Bef4 e5 Bg3 e6 Be5 Ne3 Kd6 Rc4 Bh2 d8Q+ Ke5 e7 Bg3 d6 Bh2 Re6+ Kf4 Rf6+ Kg3 Qd7 Qb6 Rcf4 Rc4 R4f5 Rh4 Nc4 Qbc5 Qh5 Qcd4 Qf7 Kg4 Qd5 Be5 Rf4+ Kg3 Rf7 Bh8 R7f6 Ne5 Kb2 a1B+ Ka2 Nd3 Qd8 Ng7 e8Q Bb2 Qed7 Ne8 Bb4 Qdf2 Ba5 Be5 Bc3 Qd4 Ka1
bbRn2K1/n2kNB2/q2p4/QR1qbb2/R1P1r3/1BQ5/Q3r3/1Q1qBNb1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 a5 Kg4 e4 Kh5 a4 b4 e3 g4 e2 f4 e1B g5 d6 f6 a3 g6 a2 b6 h3 f5 h2 g7 d3 f7+ Ke7 b5 d2 b7 h6 Kg6 h5 f6+ Kd7 b6 h4 Qe2 d1Q Nf3 h3 Bd2 Ra6 Nc3 Rh7 Nd5 Be7 f8Q Qc1 Kf7 Nc6 b8Q Bf2 b7 Bg1 Qa7 Qd1 Be1 Rh4 Nd2 Qb6 b8Q+ Qb7 c4 Bd8 Ne7 Re4 Qf3 Ba5 Bd3 Bc7 Bc2 Qb6 Rb1 a1B Bb3 Be5 Qc3 Ra2 Nf1 Rae2 Qaa5 Na7 Ra1 Qb7 Ra4 Qa6 Qbb6 Bb8 Qf2 R2e3 Qa2 Re2 Qb1 Be3 Rg1 h1B Rg5 h2 Rh5 Bg1 Rf5 Bed4 Rb5 Be5 Qa2 Bg2 Qb1 h1Q Qa2 Bb7 Qb1 Bh3 Qa2 Bc7 Qb8 Nh6+ Kf8 Ba8 g8B Bf5 f7 Beh2 Qbb6 Bb8 Kg7 Bg3 f8R Nf7 Rc8 Nd8 Bf7 Be5+ Kg8 Qf3 Qb1 Qfd3 Qf2 Qd5 Qh2 R2e3 Qhd2 Re2 Qda2
5r1q/3B1N2/nK1p1Rn1/Q7/1P3qrQ/1N1RQ1bb/1nk1nB1R/2rQnB2 b - - 0 1 illegal: No possible last move
QN1RNQr1/1n2qq1r/2Pbb3/6k1/K3Rr1b/1pB1nb2/4N1b1/B1Q2Q1B b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 h4 Kf6 f4 g5 c4 b5 Kc2 e5 Kb3 d5 a4 e4 a5 g4 c5 d3 c6 g3 h6 d2 h7 d4 h5 g2 h6 d3 a6 e3 a7 e2 Na3 e1B Ne2 g1Q Rh4 Ne7 Bg2 Qf1 Nc4 Nd5 Bh1 Nd7 Nd6 Ne3 Ra5 Rb8 a8Q Qe7 Ra7 Rg8 h8B+ Rg7 Qc2 d1R h7 d2 Rg4 Bh4 Bb2+ Qe5 Ba1 Nc5+ Ka2 b3+ Ka3 b2 Qc1 b1B Rd7 Nb7 Rd8 b4+ Ka4 b3 Ne8+ Ke7 Bc3 Be6 f6+ Kf7 f5 Be4 Rf4 Bg2 Re4 Bd6 Ba1 Rg4 Bg7 Rf4 h8Q Qf2 Qh6 Rg1 Qf1 d1B Bh8 Rc8 Bg7 Rc7 Qg5 Kg8 f7+ Kh7 f8Q Qf6 Bh8 Qe7 f6 Qf3 Qc5 Kg6 Qc1 Kg5 f7 Qh5 Bhc3 Qg6 Nd4 Bdf3 Ne2 Qh5 Qh8 Qh7 f8N Qhf7 Nd7 Kg4 Nd4 Qff6 Qfa6 Qh7 Ng7 Bf1 Ba5 Rg3 Ne8 B1g2 Qd3 Qhg6 Nb8 Rh7 Qdf1 Qgf7 Ne2 Q6e7 B5c3 Kh5 Qf8 Rg8 Bg7 Kg5 Bgc3
1qBR3K/k1R2b1R/1pr2n1B/q3n2B/4qBQP/n3Q1b1/5q2/QrqN2N1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 c5 Ke4 Kc7 Ke5 Kb6 f4 g5 a4 g3 d4 g2 a5+ Ka7 f6 g4 d6 b3 a6 c4 f5 g3 d7 c3 d5 e6 d6 c2 f7 b2 f6 b6 Nc3 b1N Be2 Na3 Bh5 Rh6 Bf4 c1Q Qg4 Be7 f8Q Nc6+ Ke4 e5 Kf5 e4 f7 e3 Qfg7 e2 f8B e1Q Nd1 Qc4 Rc1 Bh4 Qa1 Ne5 h3 Re6 B8h6 Nf6 Rh2 Qh8 d8R Qa5 d7 Bb7 Rc2 Bd5 Rh1 Rc6 Rc1 Nd3 Kg6 Qe8+ Kg7 Qce4 Rh2 Bf7 Rc2 Q8e5 Kh8 Rac8 Rc3 Qb8 Rc4 Ne5 Rc5 Ka8 a7 Kb7 a8B+ Ka7 Bb7 R8c7 Ne2 g1Q Rc1 Qf2 Ng1 g2 Rc2 Rc8 Rc5 Re6 Rc7 Bg3 h4 Qfe3 Rc2 Qc1 Nf3 g1Q Rhd2 Qee1 Rg8 Be8 d8Q Qb1 Rd7 Qe4 Rh7 Bf7 Qd2 Qf2 Ng1 Rd6 Qdc3 Rd2 Qd3 Qc1 Qe3 Rd3 Rc6 Rb3 Rd8 Rb1 Rc4 Rc6 Rc2 Re6 Rc7 Rc6 Bc8+
r3NBQB/2b2K2/P2Nr1N1/7r/1rRRbR1n/3Qq3/qkpnB3/rq1B4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 b5 a4 h5 f4 b3 d4+ Kb4 g4 c5 d6 h3 d7 b2 Ke6 h2 g5 c4 f6 c3 f5 h4 d5 h3 f7 Na6 f6 Qe8 d6 Rh5 g6 Nh6 a5 Nf5 g7 Bb7 g8B Nh4 d8N Be4 Qd3 Kb3 d7 b4 Na3 b1Q Nf3 Qa2 Bb2 Bg7 Rg1 h1R f8B h2 f7 Be5 Nb5 Bc7 Nd6 Rb5 Rc1 Nc5+ Ke5 e6 Kf6 e5 Rg4 Rg1 a6 h1R Be2 Re1 Rc2 Ra1 Kg7 Qe7 N8b7 Qg5+ Kh8 Qe3 Kg7 Rb6 d8Q Rb5 Rd2 Rb6 Qd4 c2 Bd1 Rh2 Ne8 Re6 Bc3 Ka3 Q4d6 b3 Qd3 b2 Nbd6 b1R Rf4 Rb4 Bh7 Bc6 Rc4 e4 Ne5 Nb3 Ng6 Rh1 Kg8 Rh3 Bh8 Rh1 Kg7 Kb2 Be7 Rh3 f8R Rh2 Rf4 Bd5 Rdf2 Nd2 Bf8 Nf1 Rg4 Rh1 Qg5 Ng2 Nf4 Qd4+ Kf7 e3 Qdf5 Rh5 Rd2 Nh4 Qg8 Qc3 Rdd4 Bg2 Bf3 e2 Qe4 e1Q Bg6 Qce3 Qd3 Qeb1 Bd1 Rh6 Bh5 Nd2 Ng6 Be4 Rf4 Rh7+ Qg7 Rh6 Bhe2 Rh5 Qg8
2K1n2B/b1Rr3k/P3q3/1q1bq2R/N3Qn2/NQb2p2/1q1Rq1RN/4rB1B b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 c5 Kf3 g5 Ke4 b5 Ke5 f5 h4 Kf7 d4 Kg7 e4 c4 a4 b3 a5 b4 a6 c3 d6 g4 d5 c2 d7 b2 Ke6 f3 e5 b3 h6+ Kg6 h7 f2 h5+ Kg7 d6 f4 Rh2 g3 Ra5 g2 Nf3 g1B Rg2+ Qg5 Nh2 Nc6 Na3 b1Q Bb2 Bb7 d8N c1Q Kd7 Nd4 e6 Qbg6 e7 Ra7 e8B Bd5+ Nb7 Qe5 Qg4 Qce1 Kc8 Ne2 d7 Bb4 d8R Bc3 Bc6 Nf6 Nc5 Re8 h8R Rd7 Na4 Qa1 Rf8 Kh7 h6 Qc1 Ba1 b2 Rc5 b1Q Bb7 Qb6 Rc7 Qb5 Qf5 Qc2 Qe4 Qcb2 Bc6 Ree7 Ba8 Ne8 Rf5 Kh8 h7 Qge6 Ng4 Kg7 h8Q+ Kg6 Qf6+ Kh7 Qf8 Nc1 Nh2 Nd3 Be2 f1Q Qf7+ Kh6 Qg8 Ba7 Qg3 Qf2 Bf1 Kh7 Qgf3 Qfd2 Qd1 Qe2 Qb3 Nf6 Rdg8 Ne8 Bc6 Qe1 Rd2 Qe2 Rg2 Rg7 Nb1 Qc2 Qe3 Qd4 Na3 Bb4 Rg3 Bg2 Bc3 Qb2 Rgg5 Qde4 Bd4 Bc3 Rg3 Rg4 Bh8 Q4e5 Bb7 Be4 Bh3 Rg6 Rg1 Rg3 Ba8 Rf3 Rgg5 Rf1 Rg4 Re1 Bf1 Bd5 Bb7 Bc4 Bh1 f3 Rg2 Bd5 Qe4 Nf4 Rh5#
1RkbqBnr/4R1Qp/4bN2/1NqQ2K1/2N1Q3/5qRP/rn2q3/1B2Qrq1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 fxg4 Ke2 Kd7 Ke3 g5 d4 a5 c4 e5 f4 g3 f5 g4 c6+ Kc7 d5 a4 f6 g2 f7 a3 c5 a2 h3 g3 Ne2 g1R Qe1 g2 Nf4 Ba6 b6+ Kc8 b7+ Kc7 Bd3 Bc4 Na3 Qd7 d6+ Kd8 Nh5 Qe6 d7 Qg4 Nb5 Na6 Nf6 Rf1 Rg1 Nb4 Ba3 Be7 Bb1 Nd3 Bb4 Qh5 f8Q+ Qe8 Qg7 Be6 Ba3 Nb2 Bb4 Rc8 b8Q Qh5 Qb7 Ra8 Na3 Qd1 Nc4 Ra4 Qa8+ Kc7 Qe8 Bd8 Qee7 Kb8 c7+ Kb7 c8N Qf3+ Kd2 Ra3 c6+ Kc7 N8d6 e3+ Kc2 e2 Kd2 e4 Nb5+ Kb8 c7+ Kb7 c8R e3+ Kc2 Ra5 Kc3 Ra8 Kd4 Ra4 Ke5 Ra8 Qeg3 e1Q Bc5 Qa5 Qe1 e2 Qe8 Qaa3 Bf8 Qe7 Qeg6 Qe8 Rc7+ Kb8 Qe4 Ra5 Bc2 Ra7 Rb1 a1Q Bd3 Qa5 Bc2 Nd1 Rb4 Nb2 Bb1 Qb6 Rb3 Ra2 Rb4 Be7 Ra7 Qc6 d8Q+ Qc8 Qdd5 Bd8 Rf7 Qc5 Re7 Kc8 Rb3 Qff2 Rg3 Qf3 Rh1 g1Q Rh2 Qfh1 Rf2 Qhg2 Kf4 Q2h1 Kg5 Qf3 Qc3 e1Q Rfg2 Nd3 Rb2 Qee2 Rb4 Nb2 Qe1 Bc7 Nc3 Ba5 Rbb7 Bb6 Nb5 Bd8 Rb8+
N7/5rnp/1Q5R/qn1PbQ1B/Nq1BNRr1/2B3bB/b3k3/rbKQ2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 e4 f5 g4 a5 b4 c5 g5 f3 b6 f2 g6 f4 b7 h3 b5 c4 b6 f3 g7 h2 Qe1 c3+ Kd1 a4 Ne2 c2+ Kd2 a3 Nec3 a2 Na4 Ne7 g8Q Bf5 Nbc3 Na6 b8Q+ Nc7 Bh3 f1Q b7 f2 Bb2 Qc4 Kc1 Qb4 Qf1 Be6 Qa7 Nb5 b8N Qda5 Na6 Nf5 Nc7 Ng7 Qb7 Ra6 Na8 Bf5 Qgf7 Rg8 Qd1 Be6 Qf5 f1R Rb1 a1B Qb6+ Kd7 e5 Bc5 d6 Rf4 Qf8 Rf7 Ne4 Bf5 Qd3 Ke6 d7+ Kd5 d8B Be6 Qg3 Kc4 Bf6 Raa7 Rf1 h1B Rf4 Bf3 Qc8 Kd3 Bc3 Ba2 e6 Ke2 d5 Bg1 e7 Bh5 e8B Bg6 Qf5 Ra6 Bd2 Be5 Qb3 Raa7 Bc3 Ra6 Kb2 c1B+ Kc2 Bb2 Rd1 Bd6 Bfd4 Be5 Rdf1 Bc1 Rh4 Bcf4 Rh6 Bfh2 Kc1 Bhg3 Rf4 Raa7 Qff6 Bf5 Nd6 Bfb1 Ne4 Nh5 Qf5 Rg4 Nd2 Ng7 Ne4 Rf8 Bg6 Rff7 Bh5 Qa6 Qa3 Bb3 Nb2 Bc4 Qb3 Qaa3 Qa2 Ra4 Qfe6 Qa5 Qf5 Qf8 Qa3 Bb3 Qb4 Ra1 Na4 B3a2 Qb3 Qfb4 Qd1#
1bKBnn1q/r2NR1P1/2N3k1/Rn1R3q/2QB2nn/1rr5/2b1QpB1/1N1N4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 d4 h3 b4 a4 e4 h4 b6 c4 g5 h2 d6 f3 d5 h3 d7 a3 d6 f4 b5 a2 b7 f2 b6 f3 Qe2 c3 Kf5 c2 e5 Ra7 Qe1 Nf6 Ne2 Ne8 Bb2 c1R Bd4 Rc3 Bg2 f1N Qc1 Nd2 Re1 h1Q g6+ Kg7 Ke6 h2 Qc2 Rh3 Qa4 Kh6 g7 Kg6 Qc4 Rb3 Nec3 Qh4 Re2 Qh8 Re3 Qd1 Re4 h1N Re3 Qe2 Nd1 Nf2 Re4 Ng4 Re3 Nc6 b8N f2 b7 Ne7 Nc6 Nf3 b8N Nh4 Re4 Bb7 d8R Rhc3 Kd7 Qf3 e6 Qf5 Rc8 Qfh5 Rc7 Ba6 Re5 Bb7 Rd5 Ba6 Qb4 Bd3 Qc4 Bc2 Rb7 Kh6 Kd8 Neg6 d7 Bd6 e7 Nf8 Kc8 Kg6 d8B Be5 Nd7 Bc7 Rbb5 Bb8 Ra5 Be4 Na3 Bc2 Rc1 a1N Nb1 Be4 Rc2 Bd3 Rd2 Nc2 Re2 Na3 Re3 Nb5 Re4 Bc2 Re1 Nec7 e8Q+ Kh7 Qe3 Kg6 Qf3 Ne8 Re7 Ra6 Qe3 Ra7 Qee2
Nbn1RQ2/Q3rrP1/2kbR3/q4n1Q/1BB1K1Bq/1br4p/r3RN2/1r5R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Kd6 e7 c3 e8B h4 g6 a3 g7 a2 b6 h2 b7 c2 b5 Bd7 b6 Be6 Bh5 Nc6 b8R Na7 b7 Nh6 Nh3 Qa5 Bc4 Nc8 Bd2 c1R Nf2 h3 Re1 h1R Bg4 Rc3+ Re3 Be7 Na3 Re8 Nb5+ Kd7 d6 Kc6 d7 Bd6 d8R Re7 Qe2 Rb1 Nc7 Ra7 Na8 Ra6 Bd3 Bb3 Re6 Ra7 Re8 Ra6 Qd1 Ra7 Ke2 f3+ Ke3 f4+ Ke4 Nf5 Bc4 Ra6 Bc1 Ra7 Ba3 Ra6 Bb4 Ra7 Nd3 f2 Qf3 f1Q Nf2 Ra6 Qd1 f3 d5+ Kd7 Qe2 Qg2 Qd1 Qg3 Qe2 Qh4 Qd1 Bf4 d6 Kc6 d7+ Bd6 d8Q Ra7 Nd3 f2 Qe2 f1R Nf2 Rd7 Qf6 Re7 Qf8 Rbe1 Rb1 a1B Rb2 Rd1 Qf3 Rb1 Re2 Nb6 Rbd8 Nc8 b8Q Bb2 Rd7 Bc1 Rb7 Bf4 Rb5 Ra6 Qa7 Bh2 Ree5 Bb8 Re6+ Bhd6 Rd5 Qd8 Rd1 Ra2 Qf4 Qc7 Qh6 Qa5 Qh5 Nh6 Nh1 Rff7 Nf2 Nf5 Rh1
2NB4/1Q3nPB/kN1qpQ2/2b1q2R/3rqr2/q1Rb2n1/q1N3B1/BR3nK1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 b4 Kd7 g4 Kc7 f4 Kb7 Kf2 h5 g5 a5 f6 d3 g6 d4 f7 d2 f5 h3 b6 h2 g7 d3 b5 h4 f6 a4 c5 h3 Ne2 a3 Nf4 a2 Bb2 Ra4 Na3 Qd5 Rc1 a1Q Rc3 Rh5 Qb1 d1Q Nc2 d2 Ng6 Rhh4 Bg2 Qa3 Ba1 Bf5 Qb4 Nh6 c6+ Kc8 c7 Kb7 Qf4 Qh5 Rb1 h1N+ Kg1 Ng4 c8B+ Ka8 b7+ Ka7 b6+ Ka6 Be6 Nc6 b8R Nd8 b7 Bd3 Bf5 e6 Ne7 Nh2 Nc8 Qda2 Bh7 d1Q+ Qf1 Be7 f8N Nf7 Nd7 Rad4 Ndb6 Ng3 Rb5 Qhe2 Rh5 Qdd2 Qf4 Bc5 Qc7 Qe5 Qd8 Nh6 f7 Nhf1 f8B Nf7 Qf6 Qd1 Be7 h2+ Kf2 h1Q Bd8 Qh3 Kg1 Qhg4 Na8 Qge4 Nab6 Kb5 Ra8 Qd2 b8Q Rf4 Ra4 Qd1 Rb4+ Ka6 Rb2 Qde1 Rb4 Qd6 Rb1 Qee5 Qc7 Q1e4 Qb7+
4nnB1/BQ2nPnN/qr1Qb2K/1q1Q4/b1N1B3/2N4R/5pQ1/1r1Rbnk1 b - - 0 1 illegal: No proof kernel
q2N2qr/2BbRP2/1p2B2R/2n4Q/1R5Q/bn1N2b1/br2R1rQ/b2k2BK b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 f4 Kd6 Kf2 h5 g4 c5 Kg2 e5 a4 c4 f6 b3 f7 b2 g5 b6 g6 e4 f5 e3 a5 e2 f6 e1B a6 c3 g7 c2 a7 Bg4 Be3 c1B Nf3 Qc7 Na3 b1R Bc4 Qb7 Bg1 Na6 Ne5 Nc5 Nc6 Nb3 Nc2 Bd7 Ra4 Bb2 N2b4 Bg3 Nd8 Qc8 Nd3 Ba1 Rb4 Rb2+ Qc2 Rb8 a8Q Rb7 Rh2 h3+ Kh1 h4 Re2 h2 Qa5 Ra7 Qb5 Raa2 Qd2 Be7 f8R Qb8 f7 Nf6 g8Q Ne4 Re8 Nec5 Qgg5 Bf8 R8e7 Qa8 Kg2 Qc8 Qh5 Qa8 Qa4 h1B+ Kf1 Be4 Qdh6+ Bg6 Kg2 h3+ Kh1 h2 Qh7 Na5 Qc2 Nab3 Qh4 Bgf5 Q7h5 Bfe6 Nc6 Kc7 d6+ Kb7 Bd5 Ka6 Nd8 Qb8 Bc4+ Ka5 d5 Qa8 Rb5+ Ka4 Rb4+ Ka3 Qd2 Rc2 Qdf4 Rab2 Qfh6 Ka2 Q6f4 Kb1 Qfe5 Ba4 d7 Rd2 Qef4 Kc2 Qfh6 Qc8 d6 Kd1 Bd5 Bb5 Qh7 Bc4 Q7h6 Bg4 Be6 Qc6+ Rg2 Nc1 Qf4 Bh6 Bf5 Ba2 Re3 Bf2 Nb7 Re2 d8R Qe8 d7 Qg8 Re7 Rbd2 Rc8 Rc2 d8B N1b3 Rc6 Bg5 Qfg3 Bc1 Bc7 Ba3 Rh6 Rb2 Nd8 Red2 Qgh3 Bg3 Rf2 Re2 Kg2 Rec2 Be6 Re2 Bc4 Bd7 Be6 h1Q+ Kf1 Bb1 Qh2 Qa8 Rg2 Ba2 Rf2 Qa4 Kg2 Qa7 Kh1 Qa8+ Rf3 Rg2 Re3+ Qf3 Re2 Qb7 Bd4 Qa8 Bg1
2NnR3/1Q2PRp1/q1k2r1B/4rb2/N1Bbn1bN/Kb1R4/4Qqn1/b4R1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 c4 Kd7 Kc2 f5 Kb3 a5 e4 f3 h4 d3 e5 d2 b6 f2 c5 f4 h6 d4 h7 a4+ Ka3 f3 b4 d3 h5 Nf6 c6+ Ke6 b7 Kd5 c7 Be7 h6 Ne8 e6 Bf6 e7 Ra6 b5 Kd6 b6 Kc6 Nc3 Qd4 Qe2 d1B Rh3 Bf5 c8B d2 Be6 Qd3 Bg2 f1N Bc4 Bb3 Bh1 d1B Bd2 Rf8 h8N Bd4 h7 Ne3 Nf7 Ra5 h8R Re5 Nd6 Rf6 Rf8 Ng2 Bh6 f2 Nf3 f1Q Rf7 Qf2 Nc8 Nd6 Nh4 Ne4 Rg3 Na6 b8R Nc7 b7 Ne6 Ra8 Nd8 b8Q Bb6 Kb4 a3 Na4 a2 Ka3 Bd4 Rc1 a1B Qa7 Qc3 Rd3 Qa5 Rb1 Qa6 Rc1 Bdc2 Rf1 Bg4 Nb6 Ne6 Re8 Nd8 Nc8 Ng3 Rd2 Bcf5 Rd3 Ne4 Qb7+
1BRRr2N/2bP3B/1k3R1K/nr4BQ/2rQ1p2/6r1/Nbr3n1/NN1q2qb b - - 0 1 illegal: No possible last move
K1NR3N/3pr3/QRQPR2n/3b1n2/B1Qbr1B1/k7/n1qB4/1B2bqbb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 Kf2 Ke7 h4 a5 d4 f5 e4 g5 c4 a4 b6 f3 Ke3 g3 d5 g4 Kd4 g2 e5 a3 e6 a2 c6 Kd6 c5+ Ke7 d6+ Kf6 b7 f2 e7 Ke6 e8B f4 c7 g3 h5 f3 h6 Na6 b8R Bb7 c8B Nc7 c6 Qh4+ Kc5 Ra3 Kb6 Rc3 Ka7 Bg7 h7 Rc4 Ne2 g1N Na3 g2 Nb5 Qh2 Qd4 Nd5 c7 Nc3 Bg6 Bd5 Bb7 Nh6 c8Q Re8 h8Q Re7 Rb1 a1B Qc6 Na2 Rd8 Bc3 Ka8 Be1 Bd2 Rb4 Qa1 Re4 Na7 Bd4 Qg8+ Ke5 Nf4 Ne2 Bh5 g1B Rb6 Ng3 Bb5 f1B Nc8 f2 Bg4 Bg2 Ba4 f1Q Ba6 Ngf5 Bd3 Bf3 Bb1 Qhe2 Rh3 Bh1 Re3 Qc4 Re2 Qc2 Qf7 Bb2 Ng6+ Kd4 Qg8 Kd3 Nh8 Bbd4 Qb7 Kc4 Re3 Rf4 Re6 Re4 Qc6+ Bc5 Bb5+ Kb3 Ba4+ Ka3 Qf7 Bcd4 Qg8 Qg2 Qf7 Ne3 Qf1 Nef5 Qa6 Qf1 Qc3+ Qb3 Qcc4 Qd1 Re8 Qc2 Rd8
B1nbR1NR/1nP3n1/4q1Q1/1Q1R4/3bbkn1/1KBR3r/Q2rN1p1/1nN2q2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 a5 b4 d5 f6 g5 b6 a4 f3 d3+ Kc3 d2 b7 d4+ Kc2 d3+ Kc3 g3 b5 g4 c5 a3 b6 g2 f7 a2 h5 g3 c6 Bf5 h6 Nd7 b8N Qc8 c7 Nc5 b7 Qe6 h7 Be4 Qb3 d1N+ Kb4 d2 Nc6+ Kf4 b8Q Ne3 Rh5 d1N Nc3 Nb7 Bd2 Nf2 Rd1 a1N Rd5 Ng4 Qa2 Nc2+ Kb3 Na3 Be2 Bg7 f8R+ Bf6 Re8 Nb1 Be1 Ra5 Rd3 Nf5 Bd1 Ng7 Bc2 Nd8 Qb5 Nb7 Bd1 Ra8 Be2 Rd8 Bf1 Qc8 Be2 e5 Ne7 Qf5 Bd1 Qe6 Nge2+ Kg5 Bc2 g1B Nc1 g2 N3e2 Bd4 Bc3 Rd7 Nf5 Bd8 Nh6 Ne7 Ng8 Nc8 f4+ Kh4 f5 Kg5 f6 Rd6 Ng1 Kf4 f7 Bf5 f8Q e4 Bb2 e3 Bc3 e2 Qf7 e1Q Qg6 Be4 Bd1 Qf2 Bf3 Qf1 Nf6 Rf8 Ng8 Rf5 h8R Rh5 Rd2 Rh4 Rd3 Rh3 Re3 Rc6 Bd2 Rc2 Bc3 Bf5 Rd3 Nbd6 Be4 Rd2 Bf3 Nc4 Re5 N4d6+ Bd5 Be4 Reh5 Qe5 Ba8 Qe6+ Rd5 Nb7 Nge2+
3QRKN1/B1pN1BNb/1n1BNb2/7q/Q2nQ2k/1q3r1b/1b3PrR/q5b1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 h5 d4+ e3 b4 a5 g4 a4 b6 a3 b5 a2 d6 h3 d7 h4 Ke6 h2 Kf7 e5 b7 h3 d5 e4 b6 Nc6 b8Q Nd4 b7 Ne7 d6 Ra3 Bc4 Nd5 Nc3 Kh4 g5 e2 g6 e1B g7 e3 g8N e2 Bf4 Nb6 Na4 Rf3 Nc5 Bc3 Qa4 e1Q Ne2 Bb2 Ng3 Qb1 Bb3 Qg5 d8Q Rh6 d7 Bd6 Qe7 Rg6 Qe4 Qh5 d8N Qd3 Rhe1 h1Q Nde6 h2 Nd7 Qg1 Qba8 h1B b8B Qdb5 Rad1 a1B Ba7 Be5 Bc4 Qb3 Kf8 Bg2 Re3 Bh3 Rdd3 Ba6 Qd8+ Bf6 Rc3 Qb1 Bd5 Bd3 Bd6+ Rg4 Rc1 Bc2 Rh1 Qe1 Qe5 Bh7 Rh2 Rg6 Qe4+ Rg4 Ne2 Qa5 N2f4 Rg2 Re1 Qe5 Ng7 Nb5 Qc2 Bd4 Qb4 Qh5 Re8 Be5 Qce4 Nd4 Rh1 Bb2 Bf7 Qa1 Nfe6+ Bf4 Qd5 Bh2 Qa4 Bg1 Rh2 Qh6 Qe5 Qh5 Qe4+
6kq/n1pQQN2/Rqr3Rr/5qQb/2BbrNP1/3Q2Rr/2r1N1K1/1n4B1 b - - 0 1 illegal: No possible last move, all moves rejected
3rB3/1qpQB1RR/BNb2B2/2N5/4N1Pq/1rQ1nbq1/K1Rn1bq1/3qk3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb3 f5 g4 a5 e4 a4+ Ka2 f3 b4 a3 b6 h3 b7 f4 b5 f2 b6 f3 Bb2 h4 Qc2 h2 Bb5 f1Q Qa4 h3 Qc4 f2 Nd2 Na6 b8R Nc5 b7 Nh6 Qd3 Qe1 Ne2 f1Q Nc1 Qg3 Ba6 Nb3 Qc3 Bd7 Nd3 Qdh4 Rc1 Qfg2 Nc5 Bc6 Rc2 Nf5 Ba1 Be7 Rg8 Ne3 Rg7 Rad8 b8N Rhf8 Bb2 Rf3 Nbd7 Bf6 Nb6 Be5 Re1 h1Q Rh7 h2 Rd1 Bg7 e5+ Ke7 e6 Kf6 e7 Kg5 e8B Kf4 Nde4 Nd2 d6 Bh8 d5 Bd4 Rdc1 Qd1 d7 h1B Ka1 a2 d6 Rf2 Rg7 Kf3 Bc8 Ke2 Ba6+ Ke1 Rb1 Rc8 d8B Rf3 Be7 Rd8 d7 Rf5 Ne6 Rb5 N6c5 Rb3 Rbc1 Nd5 Rb1 Bf2 Rbc1 Ne3 Rb1 Ra8 d8Q Rc8 Qd7 Rd8 Qc4 Qf1 Bbf6 Bf3 Qc3 Qfg2 Nba4 Rbb8 Nb6 Rb7 Kb2 Rbb8 Ka3 a1Q+ Ra2 Rb7 Rb3 Qab1 Rc2 Rbb8 Rb5 Qb4+ Ka2 Rb7 Nca4 Rbb8 Rh5 Qb5 Rhh7 Qd5+ Nc4 Rb3 Ncb6 Qb5 Nac5 Qb4 Nc8 Qb7 Nb6
1B4B1/1bpr1QQn/2N1n3/1K2NB2/P1Nb3R/1B2q2Q/b2q3R/1r1nb1bk b - - 0 1 illegal: No possible last move, all moves rejected
2k1nQ2/K1pbq3/nN2nqB1/1RbPQ1n1/r1Q1nB2/4q1N1/2B5/B1N3Rr b - - 0 1 illegal: No possible last move, all moves rejected
4N1n1/R1p2bQ1/B4R1q/PbbNr2k/r4Br1/B1Q5/5N2/bnK1BQbq b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 a4 b5 f4 g5 d4 e5 Kd2 g3 f6 Kg6 f7 e4 d6 g4 f5+ Kh5 d7 g2 f6 e3+ Kc2 e2 d5 e1B d6 Nc6 Bf4 b3+ Kc1 b4 Nh3 g1R Nc3 Nd4 Nf2 Nf3 Ba6 g3 Nd5 Bc3 Qf1 g2 Rh3 Be7 f8B Nd2 f7 Nb1 Rf3 Ra7 Ra3 Ba1 Ra2 Qe8 d8B Be6 d7 Bc5 Bf6 Qb8 d8N Qb6 Bc3 Rh6 Nb7 b2+ Kd1 b3 Be1 Rg6 Nd6 Rg5 Ne8 Re5 Bd6 Ra8 f8Q Bf7 Qg7 Qc6 Be7 Qh6 Bf8 Nc3+ Kd2 b1B Kc1 Bd3 Be7 Nb1 Bd6 Ba7 Ba3 Bc4 Rc3 Bb5 Rc6 Bc5 Rf6 Re4 a5 Ra4 Re2 Rd8 Ree6 Rd7 Rb6 Re7 Rb7 Re5 Ra7 Rh1 Qh7 g1B Qc2 Rh2 Qc3 Rg2 Nd3 Kg4 h5 Rg3 Nf2+ Kh4 Rd6 Rg4 Rf6 b2+ Kd1 Qg6 h6 Kh5 h7 Qh6 h8Q Nd2 Qg7 b1Q+ Bc1 Qe4 Ba3 Qh1 Kc2 Nb1 Kc1
1kqn1Nq1/1p2QnB1/1P6/Kb1R4/1rNRRNnn/8/1n2B1QR/1b1r1Bb1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 g4 Kd7 f4 c5 a4 Kc7 d4 e5 Kd2 h5 g5 h3 g6 h2 f6 e4 f5 c4 a5 b3 Kc3 h4 f7 e3 a6 b2 a7 h3 g7 e2 f6 e1N Ra4 Bg4 Bh6 Nd3 Na3 b1B Ne2 Bc5 f8Q Nc6 f7 Bd7 Qe7 Nb2 f8N Qc8 Rb4 Nd8 Nf4 Nf6 g8B Ng4 Bg7 Rh4 Bf7 Ne5 Be6 Nef7 Bg4 Rb8 a8Q Bb6 Rg1 h1N Bge2 h2 Rg2 Ng3 Qa7 h1N Rh2 Nf2 Ra4 Nh5 Kb4 c3 Nc4 c2 Qa6 Bc5+ Ka5 c1Q Qg6 Ng4 Qge4 Ng3 Qg2 Ba7 Rb4 Ra8 d6+ Kb8 d5 Nf5 Ra4 Bc6 d7 Qe3 d6 Qe6 Na3 Qa2 Re4 Qd5 Nc4 Bg1+ Kb4 Ra1 b6 Ne6 d8R Bb5 Re8 Ned8 d7 Qe6 Rd4 Qg6 Rd5 Qh7 Rd4 Qg8 Rd5 Bd3 Rd4 Rd1 Ka5 Bb1 Rd5 Rh3 Rd4 Rb3 Rd5 Rb4 Rd4 Ne6 d8R Nh4 R8d5 Ned8 Qd7 Qh7 Ree4 Qg8 Qe7
R1Q3rr/p2r4/8/1BrBnR1b/1n1bqq2/2P1QN2/NB1Q2r1/K1NQq2k b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 h5 b6 e5 b5 h3 c3 d3 b7 e4 b6 e3+ Ke1 h4 Nf3 e2 Kd2 h2 Ra5 h3 Bb2 e1Q+ Kc1 d4 Nbd2 Nc6 Kb1 Qc7 b8Q Bg7 b7 Nge7 Ka1 Nb4 Nb3 d2 Bb5 d3 Nc1 Nec6 Rg1 Be6 Qe8 h1Q b8N h2 Na6 Bf7 Qe3 Rag8 Rg3 Bh5 g5+ Kf7 f6 Kg6 f7 Kf5 g6 Bd4 g7 Ne5 Rh3 Kg4 f8Q Qd6 Rh4+ Kg3 f5 Kg2 Qd8 Qh6 f6 Qf4 Qb3 d1R f7 Rd2 f8Q Re2 Qd1 d2 Qdd6 Rf2 Qc8 Re2 Qc2 d1R Qcd2 Rh6 Qdd8 Rc6 Qd5 Rc5 Rh3 Nbd3 Nb4 Rf2 Na2 Nb4 Qed3 Qee4 Q3e3 Qe1 Qdd8 h1R Qdd7 Rh8 g8B Rg1 Bd5 Re2 Rg3+ Kh1 Rg8 Rg4 Qa6 Rf2 Ra8 Rfg2 Qac8 Rg6 Qc2 Rdd2 Qd1 Rgg8 Qdd8 R2g7 Qg5 Rd7 Qh6 Rdg2 Qed2 Qf6 Qhe3 Qff4 Bdc6 Ned3 Ba6 Rc4 Rf5 Rc5 Bab5 Ne5 Bd5
rbQQR3/p6R/B1NBb2k/1Kn1b3/nN5P/qr3bnq/5N1b/4NBR1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 c5 Kd2 f5 Kd3 Kf7 Kc4 Kg6 h4 f3 e4 g3 b4 g2 e5 f4 b6 f2 b7 f3 b5 Qd7 b6 Qh3 e6 Ne7 d6 Nd5 e7 Nd7 b8R Nc3 b7 Na4 Ba3 Kh6 e8B g5 d5 g4 Nc3 g3 Ne4 Bg7 Qc2 Be5 Kb5 c4 Rb1 Ndc5 d7 c3 d8Q Be6 d6 Rf8 d7 Rf4 Bc4 f1B Nf2 Be2 Bh5 Bd1 Bf1 Re4 Bg6 Re3 Bgd3 Be2 Qc1 c2 Rc8 Bd1 b8N Be2 Nc6 Bd1 Qb2 c1Q Qc2 Be2 Bc4 Rb3+ Nb4 Qb2 Rc7 Qa2 Re1 Qa1 Ne4 f2 Nf3 g1B Bd3 Bh2 Rg1 g2 Rb7 Na6 Qcc8 N6c5 Rc7 Bd1 Re2 Qb2 Ne1 Bhf4 Re3 Bf3 Qf8+ Bg7 d8N Nc3+ Ka5 Bf5 Nbc2 Ne6 Nc6 Na4 Bfe2 f1N Ba6 Ng3 Qfd8 Bc3+ Bb4 Qa3 Nf2 Bd4 Re7 Bb8 Bd6 Nec5 N2b4 Bg7 Rc7 Bd7 Re7 Be6 Kb5 Bc3 Re8 Be5 Rh1 g1B Bf1 Bh2 Rg1 Nb7 Rce7 Nbc5 Rh7+
k3r1q1/p4R2/K2R2N1/1BQ1N1Pn/3bQq2/2bQQ1r1/2B2bbR/Bn1br3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Ke2 e5 g4 h5 c4 d5 f4 Kd7 b4 Kc7 g6 Kb7 f5 e3 Kd3 h4 g7 h3 g5 e2 f6 e1B b6 h2 c5 Be7 f7 Bh4 f8R Qd6 b5 Bf6 Nh3 Bf2 Bb2 Ne7 g8B Nd7 Nf4 Rh3+ Qf3 Kb8 c6 Rg3 Rf7 Bb7 Ng6 Qe6 Ra6 e4+ Ke2 e3 Kd3 e2 Bh7 e1B Qe3 Qe5 Na3 Bc3 Nc4 Qf4 Ba1 Bh8 Nce5 Nf6 Be2 Nh5 Bf1 Nf5 Be2 Nd6 Bf1 Nc4 c7+ Kc8 Be2 Na3 Bf1 Bc6 Be2 Kb7 Bf1 Rb8 c8Q+ Ka8 Qg4 Re8 b7+ Kb8 Qgf3 Nb1 Qfe4 Bd7 Rd6 Bc6 Rg1 h1R Rg2 Rg1 Rh2 Bg7 Kc2 d3+ Kb3 d2 Ka4 Bd4 Ka5 d1Q Ka6 Qb3 Qh1 Bh6 Rf5 Nd2 Nh8 Bc3 Nd7+ Kc7 b6+ Kd8 Bg6 d4 Bd3 Qg8 Rf7 Re1 Bgf5 Bg7 Ng6 Nb1 Bc2 Bd5 Bfd3 Ba5 Qf1 Bg2 Bb5 Rc1 Qd1 d3 Qf1 d2 Qfd3 Bf6 Bc4 Bd4 Bb5 Re7 Nde5+ Rd7 Bc4 Re1 Qde4 d1B B4d3 Ke8 b8Q+ Rd8 b7 Bd2 Qc7 Rb8 Qc4 B2c3 Be2 Rd8 b8Q Rc8 Nd7+ Kd8 Qbb4 Rb8 Qcb5 Kc7 Bc4 Re8 Nde5+ Kc8 Q4a5 Bb4 Qc5+ Kb8 Qaa3 Ba5 Qad3 Bac3 Qf5 Ka8 Bb5 Qf3 Qff4 Qe4 Qf5 Qf4 Qfe4+
2r2n1n/BR1nK3/2kQ4/b2bp3/1nq1NPr1/1nQB1RB1/2nN4/N1R2Rn1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 h5 g4 e3 d4 e2 f4 e1N b4 c4 g5 h3 g6 a4 d6 h4 g7 h2 b6 c3 b5 c2 d5 a3 b7 h3 b6 a2 Qf3 Qc7 Qe2 Nf6 g8N Nh7 Nd2 Qc4 Qf3 Ng2 Bd3 Nh4 Nb3 Ng6+ Kf5 e5 Be3 Ra6 Rf1 c1N Na1 Nb3 Bf2 Be7 Bg3 Bd8 Qe3 Ra7 Nf3 Nhf8 Nd2 Rh4 Rf3 Rg4 Rc1 h1N Rcf1 Bc7 Kf6 h2 Qd4 Nf2 Qc3 h1N Rc1 Nc6 b8B Nb4 b7 Ra8 Ba7 Ba5 b8R Nh3 Rb5 Ng1 Rb7+ Bc7 Rcf1 Nf2 Kf7 Ne4 Nf6+ Kd8 d7 Ba5 Rc1 Nec5 Nfe4 Rb8 Rb5 Kc7 d8R Nh8+ Ke7 Ra8 d6+ Kc6 Rb7 Be6 d7 Rc8 Rcf1 Bf7 Re8 Bd5 d8Q Nfe6 Rg8 Nf8 Rg5 Ncd7 Rh5 Rc7 Qb8 Rc8 Rh1 Nd4 Nab3 a1N Rc1 Nac2 Na1 Nh3 Rhd1 Nb3 Rdf1 Ng1 Qd6+
2B2b2/brn5/3Q2N1/pPQ4q/3NbnbR/N1RrB3/bQ1b2Q1/B3k1Kb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 c4 Ke6 e4 f5 h4 a5 b4 g5 b6 d5 c5 g3+ Kg2 f4 b5 g4 c6 d3 c7 d4 h5 d2 b7 d3 h6 Rh7 Nc3 Qd5 Qf3 d1B Ra2 d2 Bc4 Nf6 Rh2 Na6 b8B Nh5 Rh1 Bb3 Rh4 d1B Be3 Bdc2 Ra3 Ba2 Nge2 Rd7 h7 Ra7 h8Q Rb7 Kg1 g2 Nb1 Bd3 Qf2 f3 Rc3 Nf4 Na3 Rd8 Qg7 Bd7 c8N Nc7 Ne7 Bc2 Kh2 g1B+ Kh1 g3 Ng6 Bh2 Qg2 f2 Qh6 f1B Nd4+ Kf7 e6+ Kf6 e7 Bg4 e8Q Qh5 Qg7+ Kg5 e5 Be4 e6 Bfe2 e7 B2f3 Be6 Bg1 Bc1 Be3 Bc8 Bd2 Kg1 Rd7 Qd8 Rd6 Qf1 Bh1 Qg2 Rd5 Qd7 Rd6 e8Q Rd5 Qh3 g2 Qde6 Rd7 Qd6 Rd8 Qec6 Rd7 Kf2 g1B+ Kf1 Bf2 Qg2 Bfe3 Bb2 Bg1 Ba1 Rd8 Nf5 Ba7 Qdc5 Rd7 Kg1 Rd3 Nd4+ Nfd5 Nh8+ Kf4 Q6d6+ Ke3 Ng6 Nf4 Qgf6 Bc1 Ne2+ Kd2 Nd4+ Ke1 Qg7 Ne8 Bc7 Bd2 Bd8 Nd5 Bg5 Nec7 Be3 Nf4 Qg8 Bb1 Qb3 Ba2 Qb2
1R2KR2/1n2b2p/Bn1BB2n/8/2bQqN1n/1nQN2RP/5r2/nkrnQR2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 fxg4 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 c4 e5+ Kh5 g5 f4 a5 c6 a4 h3 a3 c7 e3 f5 e4 c5 e2 b6 Kd3 b7 e3 c6 a2 f6 g3 f7 g2 Nf3 g1N Nd4 g4 Nb5 g3 Bb2 g2 Nd6 Qe7 Qe1 Kc2 d4 Be6 c8Q Nf3 d5 g1N c7 Nd2 Nc4 Nb3 d6 Nf3 d7 Nh4 d8Q Nh6 Be5 Nd7 b8R Nb6 Nb2 Bc4 Bd6 Qe4 Nc3 Be7 Nd5 Rf8 Nd3 Ra7 Rb1 a1N Rg1 Ra5 Rg3 Rc5 Qg4 Rc6 c8B Rc5 Qf3 Rc6 Qb4 e1N N5f4 e2 Be6 Neg2 Qe1 Ne3 Qd7 Nd1 Qe3 Rg8 f8R Rg6 Qc8 Rf6 Qd4 Rc7 Kg5 Rc6 Qa5 e1N Qe8 N4f5 Be2 Ng2 Qe1 Ngh4 Qb4 Nc3 Rf1 Nd1 Qc8 Kb1 Qe1 Bb5 Qc7 Rc1 Qcc3 Bc4 Ne5 Bd5 Ba6 Bc4 Ned3 Nf7+ Kh5 Nd8 Kg5 Nb7 Ne5 Nfe3 Ned3 Rf5+ Kh6 Ng4+ Kg7 Nh6 Ne2 Rf2 Nef4 Ng8 Kf7 Nh6+ Ke8
B1QRR2b/2B5/8/qQ2NK2/n1bB1bN1/2r2nq1/pqkN1bRP/1n1R2r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 b4 c5 b6 a5 b5 g5 b7 c4 b6 f3 Kg3 c3 Bd2 f2 Qc1 f4+ Kg2 f3+ Kg3 c2 Ne2 a4 Be1 a3 Bc3 a2 Nd2 Ne7 Ba5 Rg8 Nb3 Na6 b8N Be6 b7 Bg7 Qa3+ Nc5 Rb1 c1B Nf4 Bh8 Nh3 Nc6 Nd7 Rc8 Bb6 Ne5 Qa5 Na4 Qb5 Rc3 Bg2 f1Q Nf2 Qe2 Rd1 Qb2 Nd2 Qa8 b8R Qa5 Re8 Rg7 Bh1 Bg8 Rg1 Be6 Rg2 Bg8 Nd1 f2+ Ne3 Nf3 Ne5 Rg6 Ndf1 Bd2 Rd1 Bc1 Nd2 f1N+ Kf2 g3+ Ke2 Bf7 N3g4 Ne3 Ba7 Nc2 Bb6 Na3 Ba7 Rc5 Ke3 Nb1 Rd8+ Ke7 d6+ Ke6 d7 Rc3+ Qd3 Rg7 d5+ Kd6 Bb6 Rg6 Bc7+ Kc5 d6 Kb4 Re8 Bb3 d8B Bc4 d7 Rg7 Bf6 Rg8 Re2 g2 d8R g1Q+ Rf2 Qg3 Rg2 Rc2 Qd5 Kc3 Qb5 Rg6 Nh6 g4 Bg7 Qh3 Kf4 g3 Nhg4 Qh4 Kf5 Qh3 Nb3 Bf4 Nd2 Rc1 Bf8 Rg7 Bc5 Kc2 Bd4 Rg6 Nd7 Rg7 e5 Rg8 e6 Rg7 Re2 g2 e7 g1B Rg2 Bf2 Ne5 Qg3 Rf8 Rg6 e8Q Rc6 Qe6 Bf1 Qc8 Rc3 Rg8 Bc4 Rge8 Qb6 Rf1 Ne1 Rgg1 Qa5 Ba8 Nf3 Rg2 Rd1 Re1 Rc1 Re2 Rf1 Re1 Rg1 Rd1
b1k1n2n/N3b1qN/R5QB/QNR3rr/BK1Bn3/7P/b1pn2Q1/r2qN3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 f5 Kc3 g5 e4 a5 b4 c5 b6 a4 h3 a3 e5 a2 d6 g3 b7 g2 b5 f3 d5 f4 b6 c4 Be3 g4 Bd4 f2 Qc2 g3 Qe4 f3 Na3 Nf6 Qg6 Ra5 Nb5 Ne4+ Kb4 c3 Be2 f1B Bd1 f2 Ba4 Rh7 Nf3 g1N Ne1 g2 Rh2 Qe7 e6+ Kd8 Rc1 Nd7 b8Q a1R b7 Ndf6 Qa8 Ne2 b8B Qg7 e7+ Kd7 e8N g1Q Bba7 Rh5 Bac5 Kd8 d7 Be7 Be3 Bg2 Bh6 f1N Qb7 Nh7 Nf6 Nf4 Qa8 Bh1 Ra2 Nfd2 Qc6 Qg4 Rcc2 Qd1 Qg2 Nf8 Nh7 N8g6 Qa6 Nh8 Qag6 Ne6 Rc1 Bh4 Bd4 Nc7 Ra3 Ne8 Ra2 Ke7 d8N Kd7 d6 Be7 Nc6 Rg5 Nc7 Rae5 Nb5 Bb7 Ra3 Kc8 Ra2 Ba8 Rcc2 Rc5 d7+ Kb7 d8Q Rcd5+ Qdd6 Kc8 Qc5 Rh5 Q2g3 Bf3 Qg2 Rdg5 Ra3 N4d6 Qa7 Bd5 Qa5 Be6 Rca2 c2 Rc3 N6e4+ Rc5 Bd5 Qb6 N4d6 Bb3 Bd8 Ra6 Be7 Qa5 N6e4 Ba4 Ba2 Nca7+
NBK5/1Bn2r1k/2b2n1q/1Rb4q/2N3RR/QQ1BnPpr/3N4/1n2Bqb1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 e5 Kc4 g5 Kd5 Kg7 c4 a5 b4 d6 h4 g3 h5 a4 f6+ Kh6 b6 a3 b7 e4 c5 e3 b5 g2 c6 e2 f7 e1Q b6 d3 c7 a2 Nf3 g1B Qb3 d2 Rh4 d1Q+ Nfd2 g4 Na3 g3 Rb1 a1N Bd3 Bd7 c8B Na6 b8B Qf1 b7 Ra7 Nac4 Nc2 Rg4 Bc6+ Ke6 d5 f3 d4 Ba3 Nf6 Bb4 Bc5 f8N Qc7 Qa3 Qh7 Nd7 Qc1 Ndb6 Ne3 Na8 Qg6 Ba5 Kh7 h6 Qf5+ Kf7 Nc7 Rb5 Nd1 Bb4 Nc3 Ba5 Nb1 Bc3 Rd8 Ba5 Rd6 Ke7 Re6+ Kd8 Qg6 Ne4 Qh5 Be1 Qcg5 Ned2+ Qgg6 Bf5 d3 Be4 Re5 Bcf5 Re7 Kc8 Rf7 Bd5 Kh8 h7 Qgh6 Bg6 Kg7 h8R Ra5 Nb3 d2 Bde4 d1N Nbd2 Ne3 Bd5 Qh4 Bd3+ Q4g5 Re8 Qh5 Ree4 Kh7 Rh4 Qgh6 Reg4+ Ne4 Ba7 Ra6 b8Q Ra4 Qb7 Rb4 Bb8 Rb2 Nb3 Rh2 Nbd2 Rh3 Qb6 Be8 Bb7 Bc6 Be2 Nf6 Bd3+ Q6g6 Qba6 Qh6 Q6a4 Qh5 Q4b3 Qh6 Re4 Qgh5 Reg4+
2q5/3qbK1n/3RrR2/q3Bb1B/1rk1rbNQ/5pN1/Nn2Q1PQ/b3RN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 b4+ Kc4 d4 c5 d6 f5 b6 h5 b7 a4 d7 a3 Ke6 a2 d5 f3 b5 f2 d6 h3 b6 h2 Qe1 f4 Ba3 h4 Kf7 h3 Bb2 Rh6 Be5 Na6 b8Q Nf6 b7 Qa5 d8R Be7 d7 Nb4 e4+ Nd3 Ne2 Nh7 Ng3 Re6 Be2 f1Q Bh5 f3 Qe2 Qc1 Re1 h1R Rf8 h2 d8Q Qcd2 Qbc7 Rf1 b8N h1Q Nc6 Qh3 Nb4 Rb8 Rd1 Re1 Qcd6 Qc2 Nd2+ Kb5 Rab1 a1B Ndf1 c4 Na2+ Nb2 Q6c7 Rbb6 Rd6 Qd3 Qb8 c3 Qbc7 c2 Rc1 Bg5 Qde7 Bf4 Qh4 Bg5 Rd1 c1B Qb8 Bcf4 Rb1 Rd1 Qc7 Rd2 Re1 Be7 Qa7 Rg6 Bf6 Qc4+ Ke8 Be6 e5 Bd8 Bg7 Rb7 Qg1 Rd4 Qh2 Re4 Bf6 Bc8 e6 Kc5 e7 Rb4 Be5 Qca6 Qf2+ Kc4 Rf5 Bd7+ Kf7 Qc8 e8N Be7 Nf6 Qg4 Rg5 Rh6 Rg6 Qf5 Bc3 Qfb5 Be5 Bf5 Ng4 Qbd7 Rge6 Rg6 Qe3 Rg8 Rh6 Rg6 Qf2 Re6 Rf6 Qd5 Qe3 Qa5 Qe2+
1Brk2BN/2bqqrR1/4n1nb/n2q1Q2/5Q2/3PN3/2QK1NpN/bb1RR3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 a5 b4 f5 h4 c5 h5 g5 d6 g3 e5 g4 b6 a4 b5 g2 e6 a3 h6 a2 e7 f3 b7 f2+ Ke2 c4 h7 f4 b6 c3 Rh2 c2 Rh4 g3 Nc3 f3+ Kd3 Bh6 Nd5 Na6 b8Q Ra7 b7 Qd7 Nh3 g1B Rg4 g2 Rg7 Bh2 Ne3 Nc7 Qa8 Bg3 b8Q Ne6 Qd5 Be5 Be2 f1Q Nf2 Qe1 Bf1 Bef4 Qf5 Bg3 Rb1 a1B Ba3 c1Q Qc2 Qcd1 Qb4 Bb7 Qbf4 Bd5 Bb2 Ba2 Be5 Rb7 Rc1 Bb1 Be2 Nf6 Bf1 Nh5 Be2 Rf8 h8N Rb8 Bf1 Rc8 Be2 Rf7 Bf1 Qd8 Be2 Kd7 e8N Qg5 Bf1 Kd8 d7 Qe7 Nf6 Bh2 Nh3 f2 Nfg4 Qe8 Be2 f1N Bb8 Qh4 Bf3 Qhe7 Bd5 Qf3 Bc4 Qd5+ Ke2 Bg3 Nhf2 Bh2 d3 Nd2 Rd1 Nb3 Ke1 Na5 Kd2 Nf6 Ba2 Nh7 Bb3 Bg3 Nh2 Nhf8 Ba2 Ng6 Bb3 Qf6 Bc4 Ke7 d8R Qed7 Q4e4 Bc7 Qef4 Q7c6 Rd6 Qd7 Rb6 Kd8 Rb7 Ba2 Rbb1 Qfe7 Rbc1 Bb1 Re1 Bg5 Rcd1 Bh6 Q4e5 Qdc5 Qg5 Rf8 Rg8 Ng7 Qef4 Qcb5 Bf7 Ne6 Rg7 Qbd5 Bg8 Rf7 Qgf5
RrQ1BB2/2N2qkb/Qr4nq/2K1n3/B5Rq/1QNP4/1pq1r1Bb/R3n3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 b5 Kd4 h5 g4 h3 a4 h2 f4 h4 f6 b3 f5 h3 a5 b4 d6 e5+ Kc5 b2 d3 b3 a6 e4 g5 e3 a7 e2 Bg2 e1N Nc3 b1R Nf3 Qd7 Rg1 h1Q Nd4 h2 Ba3 Nc6 Ne6 Rb8 a8B Ne5 Bac6 Ne7 Ba4 N7g6 Qc2 b2 Qb3 Rb6 Bb4 Kg8 f7+ Kh7 f6 c6 Kd4 c5+ Kd5 c4 Nc7 Qe8 d7 Bd6 d8R Bf5 f8Q Qf7+ Kd4 Rd1 Ra8 Rd2 Qc8 Re2 Qa6 Rhb8 Ba3 Qe6 f7 Kg7 Bgc6 Qg2 Be8 h1Q Bc5 Qgh2 Rg4 Qh6 Ba3 Q1h4 f8Q+ Kh7 Bc5 Be4 Qf5 Qf7 Qfc8 Kg7 Bb4 Nd7 Ba3 Bh2 Bb4 Nde5 Kc5 Nh8 g6 Bf5 Nb1 c3 Ba3 c2 Nc3 c1Q Bb4 Kf6 g7 Qc2 g8B Bh7 Ba3 Nhg6 Bb4 Qd7 Bd5 Kg7 Bg2 Qe6 Kd4 Qf7 Bf8+ Kh8 Kc5 Kg8 Be7 Kg7 Bf8+
4bnN1/1Kb1rNBR/1R6/r1Qn2QB/q2Nk3/1Nbp2P1/B2q1r2/Q3n2n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 f4+ Ke4 b4 h5 c4 d5 g3 a4 f6 h3 b6 a3 f5 h2 b7 a2 b5 h4 f7 h3 f6 d3 b6 d4 Nd2+ Kf5 Ngf3 Rh7 Ne5 Bd7 Be2 Be8 Bb2 Nd7+ Kc6 Ra5 c5 Qb8 Rb1 a1B Qa4 Bh6 f8Q Bf4 f7 Ngf6 Qh6 Nd5 f8Q+ Rf7 Qhg7 e6 Qd6 Re7 Nf7 e5 Qc7 e4 Qg5+ Ke6 Qc8 e3 Bc3 Bb2 Qa1 Qe5 Bd1 Qe4 Bb3 Bd6 Ba2 Be5 Rhe1 h1R b8N h2 b7 Rf1 Re2 h1N Rh2 e2 Rh7 e1N Qc7 Nf6+ Nd7 Bf4 b8N Rf2 Kb7 Qe2 Nc6 Qd1 Rh3 Nh7 Nf6 Nf8 Ng8 Qa4 Rh7 Bd6 Nb3 d2 Nc1 d3 Bg7 Bbe5 Rb6 d1Q Nb3 Bd7 Qc8 Bc3 Qc7 Nf6 Qc8 Bde5 Ncd4+ Kd5 c6 Be8+ c7 Qd2 Qcf5 N6d7 c8B Nf6+ Qd7+ Ke4 Qc7 Nd5 Bg4 Bf4 Bh5 Be5 Kc8 Bf4 Qc5 Bc7 Kb7
2K2QB1/2n2q2/1QqRBbQ1/N2n2R1/2q1r2B/1qP1kp2/2N4B/1rn1b1Nb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 h4 g5 e4 f5 b6 d5 b7 f3 h6 g4 h7 f4 h5 f2 h6 d3 Bh3 f1Q Na3 g3 Qg4 d2 Nb5 d1Q Nd4 g2 Qg6 a4 Be6 a3 Rh5 a2 Rg5 Na6 b8Q Qd7 b4+ Kc4 b5 Qc6 b6 Nc7 b7 Qdd3 Qa7 Nf6 b8N Bb7 Qb6 Ra4 c3 Be7 Rb1 a1N Be3 Rd8 h8Q Nb3 h7 Nc1 Bf2 Rb4 Bg3 Re8 Bh2 Ba8 Ra1 Rb1 Ra6 Qdf3 Kf5 Kd3 e5 Ke3 Qf8 Qfc4 h8B Qh5 Bg8 Qh7 e6 Qf7 Ke5 Bd8 e7 Bb7 Nb3+ d4 Na5 Nfd5 Bf6 Ba8 Rf5 Bb7 Bh4 Ba8 Rg5 Bb7 Qb4 d3 Qb2 d2 Qb6+ Q6c5 Nbc6 d1Q Nd4 Qdb3 B2g3 Q5b5 Kd6 Qbc5+ Kd7 Ba8 Kc8 Qc6 Ngf3 g1B Bh2 Bf2 Ng1 Be1 Qfg7 Rf8 e8B Be7 Q7f6 Bd8 Bd7 Re8 Qh8 Re4 Be6 Be7 Qhh6 Bf6 Qf8 Q6b5 Bd7 Ne7+ Kb8 Re5 Be6 Bh1 Qb7 f3 Rd6 Re4 Qb6 Ned5 Kc8 Qbc6 Nc2+
3q2rb/kb2QNb1/3R1r2/3qb3/KQ2B2P/1p1Qr1q1/1NNn4/Bn1QB2R b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 d4 b5 Kd2 g5 Kc2 e5 Kb3 c5 f4 Kc7 a4 Kb6 f6 c4+ Kb2 e4 d6 g3 d7 b3 f5 g4 d5 g2 a5+ Ka7 d6 c3+ Ka3 b4+ Ka4 b2 f7 b3 a6 c2 f6 g3 Ra2 e3 Nd2 b1Q Ne2 g1Q Ra3 g2 Nc4 Ne7 Ra2 Nd5 Nd4 e2 Bb2 e1R Ba1 c1B Rd2 Nc6 Bd3 Na5 Nb2 Bb7 Nc2 Rg8 Be4 Bg7 f8B Re3 f7 Nc4 Be7 Qh2 f8Q g1B Bf6 Qg3 Bc3 Bh8 Qe7 Bh2 Rd4 Rf8 Be1 Rf6 Rd3 Nd2 Rd4 Qdg8 d8Q Rb8 Qa5 Qd8 d7 Ra8 Qab4 Nc3+ Ka3 Rc8 Rd6 Rb8 Qb5 Ra8 Qd3 Qa2+ Kb4 Ncb1 Kb5 Bg7 Kb4 Qa3+ Kb5 Qc5+ Ka4 Qh8 d8N Qd5 Nf7 Rg8 Nc4 Ba3 Nb2 Bc5 Rd7 Bd4 Rd8 Kb6 a7 Bc3 a8Q Be5 Qc8 Ka7 Qb4 Bc3 Bf2 Rc6 Nh6 Qge5 Qd7 Bf8 Re1 Qhf6 Re8 Qd8 Rh1 Qeb8 Re6 Bh8 Nf7 Bfg7 Qde7 Rd6 Re5 Rf6 Re6 Qf4 Bg3 Qf3 Bf2 Be5 Be1 Qg3 Rd6
1b1q2bQ/r4b1n/1N2BrR1/7q/R1bRnp1r/K2BqNRQ/3PN2B/3k4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 Kd6 e4 Ke5 d6 Kd4 b6 f5 g5 c5 g6 a5 d7 h5 b7 a4 e5 c4 b5 h3 g7 h2 b6 f3 e6 f2+ Ke2 c3 e7 h4 e8R a3 Bg2 f1B+ Ke1 Kd3 Re4 a2 Re2 h3 Qb3 Na6 Kd1 Bd6 b8N Nc5 b7 Ra6 Nf3 Nf6 g8B Nce4 Rg1 h1Q Be6 h2 Bb2 Rh4 Kc1 Nh7 Bh3 Be5 Reg2 f4 Bhf5 Bd6 Rg6 Ke2 R1g3 c2 Bd4 Be5 Kb2 Kd1 Qc3 Bc4 Bg1 Rd6 Ka3 c1Q+ Kb4 Qc2 Ka3 Qd3 Qb3+ Ke2 Qc3 Qe3 Qd3+ Kd1 Qc3 Qe8 d8R Rc6 Rd6 Qd8 Rd4 Bc7 Nd7 Bb8 Nb6 Rd6 Bf7 Rf6 B7e6 Bd7 Qd3 Be8 Qc3 Bf7 Qd3 Bc7 b8Q Be5 Qc8 Bb8 Qc3 Qd5 Qh8 Qd8 Ne5 Qhf3 Qd3 h1B Bh2 Qh5 Nf3 Bg2 Qc3 Bb3 Qc8 Bf1 Qd7 Bfc4 Nc3+ Kc2 Ne2 Bg8 Rb1 Bf7 Rb2+ Kd1 Qc8 a1R+ Ra2 Nf2 Bd3 Ne4 Bd5 Bg8 Qh3 Bf7 Be6 Bg8 Kb2 Bf7 Ra4 Bg8 Rb4 Ra7 Ra4 Ba2 Ka3 Bab3 Bc8 Bcf7 Bd7 Bbc4 Be6
R1BQQ1r1/1nN1nR2/rR2b2K/2qq2Bb/1R1p1QBr/1N1Pn3/1kqq4/8 b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 Kh5 Kc4 g4 a5 g5 d5 b7 f5 b6 c5 g6 a4 g7 h3 b5 a3 Nc3 a2 Nf3 h2 Ba3 Ne7 g8B Nbc6 b8R Ra6 b7 Be6 b6 Na5 Nd4 f3 Rc8 f4 b8Q f2 b7 f3 Kg5 h5 Bg2 f1N e4 h4 e5 h3 Rg1 h1R Bb2 h2 Rb1 a1Q Bc1 f2 Rb6 Qa2 Bf3 Qc2 Bg4 Ne3 Nb3 f1B Nb5 Be2 Rf1 d4 Nc7 Qf8 d3+ Kc3 Rf7 c4 Qf1 Qd2 Bh7 Rg8+ Kh5 Kc2 Bf5 c3 Qf4 Kb1 Re8 c2 Qd8 Ka2 b8R Nb7 Ba3 c1Q Bb2 Bc4 Bc8 Qcc2 e6 Bd1 Ba3 Bd5 Bd6 Kb2 Be5 B1f3 Bf6 Be2 Bg5 Bc4 Rh7 Qf5 Kh6 Qc5 Rf7 Bd1 Bh3 Bh5 Bg4 Rg1 Rf5 h1Q Rf7 Qhd5 Ra8 Rh1 Rb4 Nc6 e7 Rh3 Ref8 Rh4 e8Q Ne7+ Rf6 Qf5 Rfb6 Be6 Rf6 Qfd5 Rf7
1k2NqN1/2N1nb1n/3bBR2/3N1Qn1/2P2pb1/1B1nQ1q1/3r1Br1/2QqR2K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kg2 d5 e4 Kd7 c4 Kc7 h4 g5 b4 a5 b6+ Kb7 h6 a4 h5 a3 h7 d3 h6 a2 b5 d2 e5 g4 e6 d4 e7 d3 e8B g3 Na3 Ra5 Ne2 Bb4 Nc3 Ra6 Nd5 f3+ Kg1 f4 Bh3 g2 Be6 Ka8 b7+ Ka7 Bb2 Rd6 Qc1 Nc6 b8N d1B Nd7 d2 N7f6 Nce7 b6+ Kb8 Ba4 Qf8 Ne8 Nf6 b7 Rg8 h8Q Nh7 Bb3 f2+ Kh2 g1N Nb5 f1Q Qf6 Bd7 Qf5 Qf3 Nbc7 Nh3 Bd4 N3g5 Re1 Qg3+ Kh1 Bh5 Bf2 d1Q Rb1 a1N Qe3 Nf6 h7 Bf7 h8Q Nfh7 Qb2 Nc2 Qbc1 Ba3 Rb2 Nb4 Re2 Nd3 Ra2 Bb4 Ra6 Bc8 Rb6 Rd8 Ra6 Bd6 Rb6 Ka7 b8N Rg6 Nd7 Rg7 N7f6 Rd7 Ra6+ Kb8 Qg6 Rd8 Ng8 Bd7 Bh3 Bg4 Qf5 Bgh5 Na8 Bc5 Nh6 Ne4 Bg2 Nb4 Qf6 Qgg4 Ndb6 Rd2 Bh3 Nd3 Nd5 Rg8 Re6 Bd6 Nac7 Qh4 Qe5 Rg2 Rf6 Neg5 Ng8 Qg3 Be6 Bg4 Qf5
qB2R3/1BRKQ1bb/1Q1n4/2r1B1Q1/nP1b1N2/1NBkr1n1/r5p1/2rq1N2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 b7 f3 Kg3 a4 h5 c4 h6 f2 h7 a3 Qc2 c3 Bg2 f1R Nd2 a2 Bb2 Nh6 Nh3 Rc1 Nf1 Bg7 Qd2 c2 Bc3 Na6 Nf4 Re8 h8B Nf7 Rh7 Nc5 Qf2 Na4 b8B+ Qc7 Rb1 a1B Bf3 Ba6 Qg2 Bd3 e5+ Kd7 d6 Qa5 d5 Qa7 Bd2 Bd4 Bc3 Qb7 Qf2 Ra5 Qg1 Qa8 Ra1 Rc5 Ra3 Ra1 e6+ Kc8 e7 Kb7 d7 Kb6 d8Q+ Kb5 d6 Kc4 d7 c1R Bc6 Ra2 Qb6 Nd6 d8N Bb1 Bb7 Bc2 Nfe6 Kd3 Nc6 Bb1 Qg2 Bc2 Na5 f4+ Kh2 g3+ Kh3 f3 Kg4 f2 Nb3 Bb1 Qd5 g2 Nf4+ Kc2 Qg8 g1N Qd5 Ne2 Qe5 Ng3 Qf6 Rec8 e8Q Rd8 Qeb5 Re8 Qfd8 Re3 Qe7 Bh6 Be5 Bg7 Nfd2 f1Q Rh8 Qf2 Nf1 Qe1 Re8 Qd1+ Bf3 Nb2 Ra7 Na4 Rd7 Qa7 Rc7 Qa8 Kh3 g4+ Kh4 Ngf5+ Kg5 g3 Bb7 g2 Q5a5 Ng3 Kg6 Bf8 Kf6 Bh6 Ke6 Bg7 Ng6 Kd3 Nf4+ Kc4 Kd7 Bh7 Ne2 Kd3 Qab5+ Rc4 Qd5 Rc5 Qg8 Bh8 Qgg5 Bg7 Nf4+
R4r2/4nB1N/rQ3K1B/1BbQ3N/1P4bN/q4pB1/1nrq2nb/3k1nRQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 h3 b6 h2 b7 c4 g6 f3 d6 h4 d7 f2 g7 c3 d5 h3 d6 f4 Ne2 f3 Bd2 a4 Ng1 a3 Bh6 c2 Be2 c1R Nc3 f1N Bb5 a2 Nce2 Ra6 Nf4 Kc3 b4 Ne3 Nh5 Ne7 g8B Rc2 Bf7 Nbc6+ Kf6 Ng2 b8B Na5 e5 Nc4 e6 Nb2 Ne2+ Kb3 Rg1 h1Q Qb1 h2 Neg3 Qa5 d8Q Qa3 d7 Rg8 Rd1 Qe1 Nf5 h1N Bg3 Qd2 Qb6 Rh8 d8Q Bd7 Bh2 Ng3 Rg1 Nf1 Qe1 Rg8 Qh4 Kc3 Bg3 Rh8 Qh1 Bc8 Re1 a1B Nh4 Rg8 Re4 Bd7 Rc4+ Kd3 Qa8 Ke2 Rc8+ Kd1 Rd8 Ng6 e7 Bg4 e8N Bc5 Qd5 Ne7 Ra8 Rf8 Kg7 Na4+ Nef6 Be5 Bgf4 Bed6 Bg3 Nb2 Nh7 Bf4 Kf6 Bfd6 Bf2 Bh2 Bg3
3Q4/3RBQK1/2kr1nb1/1q1q3B/PR1B4/rn1np3/r3qbQQ/1N2NNr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 b5 Kh5 c5 f4 h6 Kg6 b3 a4 b2 d4 c4 g4 b4 d6 e4 g5 c3 d5 b3 f6 c2 f7 h3 f5 h5 f6 h4 Be3 c1N Bd4 h2 Qd2 h3 Be2 Nc6 Nf3 Ra6 Rd1 h1R Nh2 Qe7 Nf1 h2 Bh5 Nb4 Ra2 Bh6 f8B Rg1 f7 h1Q Qh2 Nbd3 Ra1 Qe5 Be7 Nf6 f8Q Qg2 Kf7 Qe2 g6 Be3 g7 Bf2 g8Q e3 Qgg2 Qf5 Kg7 Qff3 Nc3 b1R Qf7 b2 Ra2 Ra1 Nb1 Bb7 Ra3 Qf5 Rb3 Ra3 Rb4 Nb3 Rd2 Qe5 Rd1 Rc8 Rd2 Rc2 Rd1 Kc8 d7+ Kc7 d8N Rd6 Nc6 Bc8 Rd2 Bf5 Rd1 Qe6 Ne5 Bg6 Nf3 Qf5 Ne1 Qe5 Nc3 b1Q Rd2 Rca2 Rd1 Qc1 Nb1 Qc6 Rd2 Qb5 Rd1 Rd8 d6+ Kd7 Rd2 Qed5 Rd1 Kc6 d7 Rb8 d8Q Rb6 Rc1+ Kb7 Rc8 Rd6 Rb8+ Kc6 Rb7 Qd1 Ra7 Qe2 Rd7
1r2r1n1/K1BkQ1R1/3bb1Q1/5q2/P1n2NR1/1pNR1b2/rNr2N2/Q3nBq1 b - - 0 1 illegal: No possible last move, all moves rejected
B2R1Rk1/N5n1/qQrR1n2/3nqRbp/1b1b3r/n1B2BQ1/K1N4P/6Nr b - - 0 1 illegal: No possible last move, all moves rejected
1Q1b4/1R1KBbbk/R1RQn1B1/N1q2p2/1B3qn1/N2r2Pr/r1R4n/3r1N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 Ke5 f5 d4 Kf7 b4 Kg7 e4 c4 g3 h3 d6 h2 b6 c3 d5 c2 b7 a4 b5 f3 d7 h4 Ke6 a3 e5 a2 d6 f2 b6 h3 Na3 Qg5 Bd2 c1B Be2 f1N Bb4 Ra7 Bh5 Qf4 Nf3 Kh7 Nd2 Na6 b8Q Bg7 b7 Nf6 Ke7 Nc7 d8N Ra5 d7 Rd5 e6 Ng4 Nc6 Rd3 d8B Bcb2 Rg1 h1Q Rg2 h2 Na5 Qg1 Rc1 a1R Rc6 h1R Rf2 Nfe3 Nf1 Ra2 Rfc2 Nh2 Qd2 Neg4 Ra6 Rf3 Qd6 Qc5 Rc6 Bd7 Ra6 Ba4 Rc6 Rd3 Kd7 Bb3 e7 Bbc3 e8R Bcf6 Be7 Bf7 Ra6 Bh4 Rc8 Ne6 Rcc6 Rg1 Qc8 Rh1 b8R Bg5 Rb7 Rg1 Bf8 Bd8 Qb8 Rh1 Be7 Rg1 Nd2 Rd1 Nf1 Kg8 Bg6 Rh3 Bh5 Kh7 Bg6+
2rNbqQ1/3n4/n2bn1B1/QqB2pBq/3P3Q/1R3q1r/3RbNQ1/2K1k2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 Kd2 f5 g4 h5 d6 c5 e5 a5 b6 h3 b7 Kh4 e6 Kg3 d7 Kf2 b5 a4 b6 c4 e7 h2 e8Q f3 g5 h4 g6 h3 g7 c3+ Kc2 a3 Qe4 a2 Bc4 Bd6 Nd2 Na6 b8B Qf8 d8N Bd7 b7 Be8 Rb1 a1Q Ne2 Qa4+ Rb3 Qb5 Ba7 Nf6 g8Q Rc8 b8Q Nd7 Qb6 Rh4 Rg1 h1Q Ng3 h2 Bf7 Rh3 Qh4 Qg2 Bh5 h1Q Qa5 Qgh2 Kb1 c2+ Kb2 Q1g2 Bg6 Qgf1 Bc5 Qfe2 Ndf1 Qe3 Bd2 c1N Qc2 Ne2 Bc1 Qe4 Nd2 Nf4 Rg2+ Ke1 Nh1+ f2 Kb1 Qf3 Ne4+ Kf1 Qca2 Ne6 Bd2 Ke2 Bg5+ Kd1 Kb2 f1B Nef2+ Ke2 Qb6 Ke1 Kc1 Be2 Qc2 Qhg3 Qce4 Qh5 Qa5+ Qb4 Rh2 Qd3 Qeg4 Qf3 Qg2 Nec7 Qgg3 Bb5 Rg2 Ne6 Nd1+ Kf1 Rd2 Be2 Qh2 Qb5 Ndf2 Ke1 Qg2
1R3qr1/n2bQ1r1/1k2B1R1/r1br1pQP/2R2B2/1Kn1q2q/1n2BQ2/4NQ1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kc3 c5 b4 Kc7 h4 a5 e4 f5 d6+ Kb7 d7 a4 b6 g3 d5 f3 e5 a3 d6 f2 e6 a2 e7 c4 e8B g2 h5 g4 b5 g3 Nd2 Ra6 Ne2 g1Q Nf3 g2 Ng3 Ne7 Bf7 Nbc6 Be6 Ra5 Rh4 Na7 Be2 f1Q Ne1 Rg8 Nh1 Qe3+ Kb2 c3+ Kb3 g1R Rc4 Qe8 d8Q R1g7 d7 Nd5 Qg5 Bc5 d8Q Qfh3 Qde7+ Bd7 Rb1 a1R Qd2 Kb8 b7 Kc7 b8R Qf8 b6+ Kc6 b7 c2+ Qd3 Nc3 Qd4 R1a4 Qdh4 Ra1 Qf2 Kb6 Rb2 Rb1 Bd2 Rd1 Rb1 Qef3 Bf4 Rd5 Rd1 Qe4 Rd3 Qd4 Rg3 c1N+ Kc2 Qdf6 Qg4 Re5 Nf3 Ncb5 Rd8 Nd3 b8Q+ Ka6 Re8 Nc3 Qb1 Rd5 Kb3 Kb6 Qbf1 Qd4 Ne1 Nb2 Rb8+ Kc6 Qgh4 Qd3 Rg6 Qde3 Rd8 Kb5 Qhg5 Kb6 Rb8+
2b2BBK/nrrqB3/2N5/N3P1Qb/k1R2b2/b3RqRQ/2pn1r2/1Q3n1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 a3 d6 h3 d5 c3 g6 h4 b6 h2 g7 a2 b5 h3 b7 c2 b6 Ne7 g8R Na6 b8Q Rh6 b7 Rh7 Rg3 Ra7 Na3 Nc6 Ne2 Bh6 Nd4 Nc5 Bc4 Ne4 Re1 h1R Qa8 h2 b8Q Rb7 Re3 Na7 Qd3 Qc7 Rb1 a1B Rb4 Bb2 Nc6 Rd1 Qf1 Rd2 Qh3 Rg2 Ba2 h1B Nc4 Ba3 N4a5 Qd8 Rc4 Rh2+ Qg2 Rc7 Qb1 Nd2+ Ke2 f3+ Kd3 f2 Qh3 f1N Kd4 Bb4 Ba3 Bf3 Qb7 Bg4 Bb3 f4 Ba2 Nb3+ Ke4 f3 Qa8 f2 Qb7 Bf8 Kf4 Qe8 Kg5 Nbd2 Kf6 Bh6 Qa8 Bf4 Bb3 Rh5 Kg7 Rf5 Kh7 Bh5 Kg7 Qe6 Kh8 Rf7 Qb7 Rg2 Ba2 Nh2 Qh1 f1Q Qb6 Bc5 Qb1 Qf3 Bb3 Nhf1 Bb4 Rf2 Ba3 Ke8 d7+ Kf8 d8B Ke8 Bg5 Kd7 Be7 Rb7 Ba2 Kc7 Bb3 Kb6 d6 Kb5 d7 Rg7 d8Q Qd7 Ba2+ Bb4 Bf8 Ka4 Qg5 Re7 Bb2 Rg7 Bd4 Re7 Bc5 Rf7 Bce7 Rc7 Rcc3 Ba3 Bc4 Rg7 Bg8 Rg6 Nb8 Rb6 Nbc6 Rbb7 Rc4+
3q1bqN/n2b4/1rB3rR/2R1P2N/1r1Qb2p/qR1B1QB1/2K2Qq1/1B4nk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 c4 d5 g4 h5 g6 a5 c5 f5 g5 a4 c6 f3 b6 Kf4 b7 Kg3 c7 f4 b5 a3 e5 a2 b6 d3 g7 d4 g6 f2 Ba3 f3 Bc5 Nh6 g8Q Ra4 g7 Nc6 b8R Ng4 b7 Na7 Qgb3 Nh2 g8B Bd7 c8B Rh6 Nh3 Rb6 Bd5 Rab4 Na3 h4 Bc6 Qg5+ Nf4 Qg8 Rb1 a1R Nb5 Raa6 Kc1 d2+ Kc2 Qh8 Bc4 f1B Nd6 Bg2 Bd3 f2 Nf7 Qg8 Nh8 Be4 Nh5+ Kg2 Qe1 f1Q Qf2+ Kh3 Ra1 Qfg2 Rhc1 Nf3 Qf7 Ng1 Q7f3+ Kh2 Ra3 Bh6 Rb3 Kh1 Ra8 Bg7 b8Q Bf8 Qd6 d1Q+ Kb2 Be8 Bf5 Bd7 Bb1 d3 Qd4 d2 Rb8 Bd5 Bfd3 Be4 Rc4 Qe2 Kc2 Qe1 Re8 Qe3 Re6 d1Q+ Kb2 Qeg5 Rh6 Qd8 Rc2 Qc1+ Kc3 Qcg5 Rc1 Qge7 Kc2 R4b5 Bb4 Qd6 Bd2 Qa3 Bf4 Rb4 Bg3 R6b5 Ba8 Rg6 Bc6 Rb6 Kd2 Bg4 Rc5 Bd7 Kc2
3rQ2B/q7/nN1bK2B/1Q1P1p1B/2Q1n2r/kRrR1r1Q/6N1/1R1nbbq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 e4 h5 d4 f5 b6 a5 d6 h3 d7 h2 g5 c4 b7 a4 g6 h4 g7 c3 Qg4 f3 Na3 f2 Nh3 c2 Nc4 a3 Nf4 h3 Nb6 a2 Be2 f1N Ke6 Bd6 e5 Nf6 g8Q Ra7 Rb1 a1B Ng2 Ne4 Bh6 Ne3 Rhd1 c1R Rd3 Na6 b8Q h1Q d5 h2 Qh3 Rc5 Bh5 Qg1 Qgg4 h1R b3 Ka3 b4+ Rc3 b5 Nd1 Qgh4 Nef2 Qc4 Ne4 Qb7 Qc7 Qbc6 Bb7 d8B Rf8 Bf6 Rd8 Bh8 Qb8 Nd7 Ra8 b6 Qa7 Q6b5 Bc6 b7 Rh2 Qe3 Rh4 Nb6 Rac8 b8R Rb3 Qcd4 Bc3 Qdc4 Be1 Qh3 Bb7 Kf7 Rc6 e6 Bc8+ e7 Rc3 Rd4 Rf3 Rd2 Bb7 e8Q Rc5 Ke6 Rc6 Qd4 Rcc3 Rd3 Bc6 Qbc4 Ba4 Qcb5 Bb3 Qdc4 Bc2 Rd4 Bd3 Rb7 Be2 Rd3 Bf1 Na8 Nd2 Qbd7 Ne4 R7b3+ Ka2 Qdb5 Rc2 Nb6 Rc3 Rb4+ Ka3 R4b3+
k1b1N2K/2bbB3/2B1BB1R/QQ1p1Rn1/6Nr/2r2q2/1R2rn1P/1bn1q2N b - - 0 1 illegal: No possible last move
1K1brBqQ/Q2RB3/8/1b1p1rn1/1Rb4r/2N1nPNk/1R1n1B2/1BN2qn1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 h5 Kc5 a5 c4 e5+ Kd5 a4 g4 e4 b4 d3 b6 d2 c5 Kg5 b7 e3 b5 e2 b6 e1R f6 a3 f7 a2 c6 h3 c7 Kh4 g5 h2 g6 Nh6 g7 Nc6 g8Q Nd4 b8B Be7 b7 Ne2 Ba3 Ra5+ Bc5 d6 Kc6 Be6 Nc3 Bc4 Rb1 a1N c8N Nb3 Rb2 Rb5 Bd4 Rf5 Qa1 d1N Qa7 Bg5 Qg7 Qg8 f8B Nf7 Kc7 Be7 Bg2 Ng5 Be4 Bf6 Bb1 Bd8+ Kd7 Rh6 Qh8 Kg4 Bc7 h4 b8R h3 Rb4 Rh4 Nb6 Bb5+ Kc8 Ng3 Kb8 Re8 Ne4 Ne2 Bf6 Ne3 Nd5 Bc4 Ndc3 Bb5 Nf3 Bc4 Rd1 h1B Ne1 h2 Nd3 Kh3 B6e7 Bb5 Nf6 Bd5 f3 h1Q Nh5 Bdc4 Nc1 Qf1 Rd5 Nd2 Ng3 Ng2 Bb6 Ng1 Bf2 Ne3 Rc5 d5 Rc7 Nf7 Rb7 Ng5 Rd7
2bnQnq1/NnR2bn1/BQ5B/2PrR3/q1B2N1Q/5pK1/1r1b3B/1k1qR3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 h4 Kf6 e4 Ke5 b4 a5 c4 f5 h6 d5 c5 g5 b6 g4 h7 g3+ Kg2 d3 b5 Kd4 b7 d2 h5 f3+ Kh3 a4 h6 g2 e5 f2 e6 f4 b6 f3 Qb3 d1Q Kh2 a3 e7 a2 e8B Nc6 b8B Nf6 b7 Nh5 Nh3 g1N Bg6 Ng7 Bf7 Ne2 Be6 Nf4 Bg8 Ng6 Ba6 f1B Nf4 Bc4 Qb6 Qa4 Nh5 Kd3 Nd2 Kc2 Nf4 d4 Re1 d3 Re5 Bf7 Nb1 d2 Kg3 d1Q Nc3 Be7 Bd6 Bg5 b8Q Nf8 Nb5 Ra7 Qa8 Rb7 Na7 Rb8 Rb1 a1N Be3 Nb3 Bd2 Qe2 Re1 Nba5 Be3 Nb7 Bc1 Be8 Bgc4 Bf7 Be3 Rg8 h8Q Qd1 h7 Qe8 Bc1 Ncd8 Bd2 Nge6 Qf6 Ng7 h8R Bh6 Qh4 Bg5 Bcb5 Kb1 Rh7 Qe6 Bc1 Qeb3 Bc4 Bh6 Nh5 Bd2 Nf4 Rh8 Re7 Rg8 Rc7 Rh8 Rh5 Rh6 Rhe5 Rh5 R5e3 Rd5 Re5 Na5 Qbc6 Rb5 Qb6 Qba2 Qac6 Rb2 Qe8 Nab7 Ne6 Bc3 Bh6 Bd2 Nf4 Qd7 Re6 Qaa4 R6e2 Qe6 Re5 Qg6+ Qg4 Qh7 Qh4 Qg8 Ng6 Qa3 R5e3 Bb4 Kf4 Nd7 Kg4 Qa1 Bh2 Qa4 Nf4 Nf8+ Kg3 Bd2 Re5
1NNrrn2/3q2r1/bqrB3n/1P1Rb1nR/1K2B3/Q4Nb1/2kpQ2R/6BB b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 e5 c4 h5 b6 a5 b5 e4 c5 a4 c6 a3 c7 a2 b7 h3 Qa4 e3+ Kd3 e2 Nf3 h2 Qd1 h4 Nbd2 h3 Nc4 Nd7 b8N Nh6 Bg2 Bd6 Be3 Ba6 c8B Nf8 Bg1 Qb6 Bb7 e1N+ Kd2 d3 Kc3 d2 Qe2 Be5+ Kb4 d1Q Nd6 d4 Be4 d3 Nc8 d2 Rb1 a1B Rb3 Bc7 Rd3 Bae5 Rd8 Qc1 Rd3 Qcc6 g5+ Kf7 g6+ Kf6 g7 Qd7 Nd4 Nf3 g8R Ng5 Nf3 Rh7 Rh8 Rg7 Rh7 Ng4 Rh5 Nh6 Bc5 Bcd6 Rb1 Bc7 Bg1 h1R Ra1 Rh2 Bh1 Rg2 Re1 h2 Rf1 Re7 Rf2 Rg3 Rg2 Re8 Rf2 Ngf7 Rg2 Rg7 Rf2 Ng5 Rg2 Kf7 f6 Ke6 f7 Kf6 f5 Bg3 Ne1 Ke5 f6 Kf4 Nf3 Be5 Bd4 Ra7 Bg1 Rc7 Rf2 Rc6 Rg2 Ng6 f8B Rd8 Bd6 Nf8 Rf2 Re8 Bg2 h1R f7 Rd8 Bh2 Rd1 Bg1 Re1 Bh1 Rc2 Ba8 Rc6 Rfh2 Kf5 Qf1 Ke4 Qf2 Nfh7 f8Q Re2 Qe7 Nf8 Qg2 Re3 Qe2 Nh3 Bc5 Ng5 Rd5 Rc7 Qf7 Bb2 Bd6 Ba1 Qf6 Rc1 Qb2 Rc2 Qc1 Bd4 Qg2 Kd3 Qa3+ Rc3 Qf2 Ree8 Qe2+ Kc2 Bc6 Bf6 Rd3 Bfe5 Be4 Rc6 Rd5+
KBRqN3/4qB1Q/1qN3Q1/1Pb1b1Qb/4R1R1/4Nr1n/1pnrn3/k3nQ2 b - - 0 1 illegal: No proof kernel
1bBb2Q1/Bb1Nr1n1/3R2K1/NP3n1R/1N1r4/5qpQ/R2q4/kq1b1nQR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 g5 b6 a5 b7 a4 b5 c4 h5 g3+ Kf3 c3 h6 g4+ Ke2 a3 Kd3 a2 h7 f3 Qe1 g2 Ke3 f2 Kf4 g3 Na3 c2 Nb1 Nf6 Kg5 f4 Na3 f3 Ne2 g1B Be3 c1Q Bh3 f1B Nc3 f2 Kg6 Nc6 b8N Bb7 Bc8 Ra7 Nd7 Ne8 Qd1 Qd2 e5+ Kc7 e6 Kd6 e7 Be2 Qe1 Ng7 e8R f1N Re5 Be7 Reh5 Bd1 Bf2 Rf8 h8Q Rf4 Qh6 Qf8 Nc4+ Kc7 Na5 Kd6 Be3 Bd8 Qf2 Re4 Qh2 Bf2 Qg1 Qf3 Qh8 Ke7 d6+ Ke6 Nd5 Ne7+ Kh7 Nef5 Kg6 Rf4 Nb4 Rh4 Nbc6 Kd5 Nb4+ Ke4 d5 Rf4 Bc5 Bd4 Qg8 Be5 Qe6 N5e3 Qh3 Nef5 Nb6 Rh4 d7 Bb8 d6 Ke5 Be3 Rd4 Bf2 Bdc7 d8Q Ke4 Qf6 Bd8 Qg5 Ke5 d7 Ke4 N4d5 Kd3 Nb4+ Kc3 Be3 Kb2 Bf2 Bf6 d8R Be7 Rd6 Bd8 Rc1 a1Q Nd7 Qb1 Rc2+ Ka1 Qgg4 Rd3 Qc4 Rd4 Qg8 Ra6 Be3 Rc6 Rb2 Rc5 Bf2 Re5 Be3 Re7 Bf2 Rde4 Ba7 Rd4 Ra2+
1bB2N2/nB1QR3/r5qR/PbNrB3/pnQ2n1K/r6Q/2b4r/1kq1RQ2 b - - 0 1 illegal: No proof kernel
5nr1/1b2kq1r/2nN1b2/pQ1q1BQb/1BRRQNbn/3K4/qB5P/5NN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 a5 Ke2 g5 d4 c5 b4 f5 b6 g3 b7 g4 d6 f3+ Kd3 f4 b5 c4+ Kc3 f2 d5 f3 e5 g2 e6 g3 b6 Rh7 e7 Bg4 Qa4+ Nc6 b8Q Bg7+ Kd2 c3+ Kd3 c2 b7 Nf6 Qe4 Nd7 Ra4 Nf8 Nd2 Bf6 Bb2 c1Q Rd4 Qa1 d7+ Kf7 e8N Qa2 Be2 f1B d6 f2 Rc4 Qe7 d8Q Qe6 d7 Qd5+ Rd4 Bh5 Qbe5 Rc8 b8B Bg4 Ngf3 g1Q Bd6 Bg2 Bb4 Qf1 Ng1 B2f3 Qg5 g2 Qb6 Bh5 Qb5 Bfg4 Qef4 Ra8 Nd6+ Ke7 d8N Rc8 Ne6 Rd8 Nh3 g1N Qe4 Nf3 Ng1 Nh4 Nf4+ Ne6 Qef5 Rg8 Qfg6 Nf8 Qe4+ Qe6 Rc4 Qd1 Rd4 f1B Rc4 Bg2 Bf3 Qe1 Nf1 Qf2 Bd1 Qa7 Rd4 Qd7 Bb3 Qe5 Be6 Qe8 Bf5 Qef7 Ngh3 Qee6 Rg1 Bh1 Rg2 Qe5 Rc2 Bhf3 Rcc4 Bg2 Ne6 Qd5 Nef4+ Qde6 Qb6 Nb8 Qe3 Bb7 Ng1 Nc6 Qb5 Qe5 Qf3 Qed5 Qe4+
n3N2K/8/1RBbnr1k/pnR1N1b1/r1QQ1rB1/2q2Pnb/6NN/1Q1q2B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 c5 d4 a5 g4 h3 b4 c4 b6 e3 b5 e6 f3 e2 g5 e1R+ Be3 c3 b7 h4 b6 h2 d6 c2 d7 c1Q d5 h3 d6 Rh4 Qd5 Ne7 Nd2 Rh7 Ne2 Rd1 Rb1 Na6 b8N Rf7 b7 Nc5 Nc6 Ra6 b8Q Kh5 Qa2 Nd5 g6 Nc7 g7 Na8 Nf4+ Kh6 Ng2+ Rf4 g8B Qc2 Rb4 Ra1 Bb5 Qb3 Qc2 Ra4 Rc1 h1N Nf1 h2 Bg1 Nf2 Bh7 h1N Bf5 Nd1 Nh2 Qc7 Kf6 e5 d8N e4 d7 Ng3 Ne6 Nc3 d8Q Rb6 Qa2 Qd1 Ne5 Be7+ Kf7 Bg5+ Kg8 e3 Ng7 e2 Qd4 e1B Ne8 Rf6 Kh8 Bd2 Rc2 Bc1 Qb1 Ba3 Be6 Qc6 Qc7 Bd7 Bh3 Bf5 Qc8 Ne6 Qa6 Qc4 Bc6 Qcd3 Rbb2 Bd6 Rb6 Qe3 Qe2 Nb5 Rc5 Qc3 Qec4 Na3 Bg4 Nb5 Bh5 Bh3 Bg4
Rn2N1BB/N2q1b1K/2Qb1r2/p4N1R/b2nR2r/qnb2P2/1BQ5/k1rN4 b - - 0 1 illegal: No possible last move
2b2qQ1/2n5/R4qNP/2N4q/K1p1B2r/B1Rnk2N/1Nr1bb2/1QB1nbR1 b - - 0 1 illegal: No possible last move
7n/3kr2Q/Nn4P1/1q2B1b1/2B1B2r/p1bNN2b/3Q1qBK/1qRqR1Qn b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 g4 d5 c4 e5 f4 h5 Kf2 a5 Kg3 d3 b4 d4 f5 d2 b6 e3 f6 a4 b7 e2 c5 e1N b5 d3 f7+ Ke7 b6 a3 c6 e4 c7 e3 Nc3 e2 Nh3 Qd5 Bg2 Bh6 Nf2 Qb5 Bb2 Ra7 Rc1 h4+ Kh3 Nd7 f8Q+ Ke6 Qd8 Qc6 b8N Ne7 b7 Ng6 Nd5 Qb5 Ra1 Nb6 Be5 Rh7 Be4 Nh8 Na6 Bd7 Ne3 Bc8 Kh2 h3 Kg3 h2 Rg1 Bd7 c8B h1Q Rb1 Qf3+ Kh2 Ng2 Qf1 e1B Rc1 Nh4 Qg2 Nf5 Qg3 d1Q Rf1 Qc2 Qg1 Qbb1 b8Q d2 Qbc7 d1Q Qb7 Bb4 Re1 Qfe2 Bg2 Qca2 Qe4 Bd2 Bb7 Qeb5 Qc2 Bc3 Qg8+ Ke7 Bbe4 Rc7 Nd3 Ng3 Qg7+ Qf7 Qd2 Nh1 Qg8 Qf2 Qg6 Rf7 Qh7 Ke8 g6 Bc8 g7 Rce7 g8B Rf4 g5 Bh3 g6 Kd7 Bf7 Rh4 Bb3 Bg5 Bc4
1KB2kqn/R5QQ/1br3Pr/5Nn1/qNq2p2/B2b4/QB2R2b/2qRnQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 f5 g4 a5 b4 h5 e4 a4 d4 h3 g5 c4 g6 c3 d6 h4 b6 h2 d5 c2 b7 a3 d7+ Ke7 e5 a2 e6 h3 b5 Ra3+ Nc3 Nc6 b8B Rh4 b6 Nf6 b7 Ne4 Be5 Ra4 b8Q Rc4 Qb7 Rh6 Nge2 Qe8 Bg2 Nd8 Ng3 Rc6 Qf1 Nf7 Qb3 Bg7 d8Q+ Kf8 d6 Nh8 d7 Ba6 Qh4 Bd3 d8Q Bf6 Qdd5 Bd8 Qd7 Bb6 Nd5 Qd8 Rg1 h1N Beb2 h2 Nb4 Nhf2 Bh3 Qa8 Ba3 Qa4 Bcb2 c1Q Qd4 Qc4 Rd1 a1B Qa2 h1Q+ Rg2 Ke8 e7 Qg8 Qg7 Qg1 Bc1 Be5 Bcb2 Ba6 Bg4 Nd3 Re2 Qc5 Qh5 Qcc4 Qhh1 Bed4 Qh4 Bg1 Qh1 Bh2 Bh3 Kd7 e8R+ Kd6 Ra8 Qc1 Qd4+ Ke7 Ra7+ Kf8 Qd7 Nd6 Qh7 Ndf7 Qhg1 Qc4 Qd4 Ne1+ Kf2 f3 Ke3 f4+ Ke4 f2 Bc8 Nd8 Ke5 Ne6 Nf5 Ng5 Qdd7 Rc7 Kd6 Rc5 Qc7 Rc6+ Kd7 Bb5 Ba6 Qc1 Kc8 Bd3 Kb8 Qcc4 Bc8 Qc1 Qh3 f1Q Qcd7 Qcc4 Qb7 Qg1 Qf1 Qe3 Qbc7 Qec1 Qcg7+
b1nbKB2/2Rr1rqn/1RNN2p1/1QN1kBN1/1Bq5/Q6Q/4q1Pr/r6b b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 c5 b4 a5 b6 f3 b5 f2 b7 c4 b6 c3 Nh3 f6 Qa4 g6 Nd2 h4 Ng5 c2 Rb1 h3 Qa3+ Kd7 d6 f5+ Kd5 a4 e4 f4 e5 f3 e6+ Kd8 d7 Qc7 Nb3 h2 Nc5 Ke7 d8N Kf6 e7 Ra7 Bd2 c1Q Bd3 f1R Nc6 f2 Bb4 Nd7 b8B Bb7 Bf5 Ba8 b7 Rh6 e8Q Be7 Qc8 Nf8 Rg1 Qd7+ Bd6 h1B b8Q Nh7 Qb5 Bd8 Rb2 Qc7 Bf8 Qg7 Kd6 Ne7 d5 Qc4 Rb3 Rd1 Re1 Rd4 Rc1 f1Q Rcc3 Qfe2 Rb2 Ra5 Kd7 Ra7+ Ke8 Rh2 d6 Rd1 d7 Rd4 Na5 Ke5 Nab7 Rd1 Nd6 Rf1 Qcc6 Nc8 Qf3 Rd1 Qh3 Rd5 Qb3 a3 Rb1 a2 Qa3 a1R Rb2 Ba5 d8N Rf7 Nc6+ Kf4+ Re3 Bd8 Re7 Rd3 Nde4 Rd2 Rc7 Rdd7 Rb1 Be7 Nd6 Bd8+ Ne7 Ke5 Nc6+ Kd5+ Ne7+ Kd4 Be1 Ke5 Qba4 Qec2 Nc6+ Kf4 Rb6 Qd1 Bb4 Qde2+ Ne7 Ke5 Qa5 Re1 Qb5 Ra1 Nc6+
r2bR3/k3BN2/3r1np1/1Kb5/n3nBP1/2rQ1RNR/q1QqQB1b/r6B b - - 0 1 illegal: No extended proof kernel
qn3KB1/2B1r1Rq/R2r1PB1/b4b2/5QNb/kBb1Rr2/4np1n/4N1NQ b - - 0 1 illegal: No proof kernel
q1QnR1QK/1b2N3/R2N1P1k/B3qBpB/Rb5N/n1q2B1r/q4r2/1r4n1 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Ke2 Kf7 Ke3 Kg6 Kf4 d5 Ke5 a5 c4 a4 b4 e3 h4 e6 f4 a3 b6 a2 b7 d4 h5+ Kh6 f5 g5 b5 e2 b6 e1N c6 g3 c7 d3 c5 d2 c6 g2 Qg4 d1Q Bd2 Qe8 Na3 Nf6 Nc4 Nc2 Nf3 g1R Be2 Qe1 Rh4 Kg7 h6+ Kf7 h7 Kg7 Qh3 Ba3 Nd6 Nd5 Rc4 Rf8 h8R Nc3 Nh4 Rg3 Rg8+ Kh6 Rb4 Qc1 Bh5 Ne2 Rf4 Qd8 Rd4 Rf7 Re8 Ng1 Qg4 Rh3 Re4 Na6 b8N Nc5 b7 Ra6 Rb4 Rb6 Rc4 Rb1 Re4 Re7 Kf6 e5 Rf4 e4 Be1 Bd7 c8B e3 c7 e2 Nc6 Ne6 Bb4 Rg7+ Ne7 Bc6 Bd7 e1Q c8B Bf3 Bc6 Qg3 B8d7 Qa8 Be4 Rg6+ Kf7 Rf6+ Kg8 Qce1 Kh8 Nd8 Bec6 Qc3 Bd5 Re6+ f6 Re2 Qe6 Rf2 Qg8 Bg2 b8Q Bf3 Rc4 Qge5 Qc8 Be4 Rc6 Bg2 Ba5 Bb4 Ra6 Bf3 B5e6 Bb7 Bc6 Rc1 Rb1 a1Q Bf5 Qa4 Rb2 Rb1 Ra2 Qab3 Ra4 Qa2 Bg2 Na3 Bgf3
2Bb2r1/1QR2n1b/1q1QPn2/b7/R2r2p1/r1B3kn/RB1q1bB1/K1NN2N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 e4 Ke6 b4 f5 c4 g5 Kc2 a5 Kb2 d5 h4 f4 h5 f3 c5 a4 b6 f2 b5 a3+ Ka2 g3 h6 g4 c6 d3 c7 g2 b7 d4 h7 d2 b6 d3 Be2 f1R Rh3 Nd7 b8Q Rf4 b7 Bb4 Bf1 Ndf6 Rh2 Nh6 Nc3 Ba5 Bb2 Rg8 h8B Nf7 Bg7 Bd7 c8B Qb6 Nce2 Ra7 Nc1 Ra6 Qf3 d1N Qc7 d2 b8R Ra8 Rb7 Nf2 Qc5 d1Q Rc7 Qd2 Qc6+ Ke7 e6 Nh3 e5 Rd4 Qfd5 Ra6 Qb7 Ra7 Kb1 Ra8 Ra2 Ra6 Ka1 Ra7 Nf3 g1B Bg2 Bf2 Ng1 Ra8 Bc3 Ra6 Rb2 a2 Rb4 Ke8 e7 Bf5 Qd6 Bc2 Kb2 a1B+ Ka2 Bb2 Ra4 Bh7 Bh8 Nfg5 Bg7 Kf7 e8N+ Kg6 e6 Kf5 Kb1 Ba3+ Ka1 Nf7 Bh8 Kg5 Ng7 B3b4 Nf5 Kh5 Qdc6 Be7 Ne3 Kh4 Nd1 Bd8 Qc5 Kg3 Qd6+ Nf4 Rh5 Ra7 Re5 Nh3 Re2+ Qf4 Rea2 Ra6 Qb4 Qd2 Qd6+ Rf4 Bc6 Bb4 R4a3 Nd7 Bg2 Ra7 Bhd4 Nf6 Bb2+ Bc3 Rb3 Ra3 Rb5 Ba5 Rb4 Nh5 Ra4 Nf6 Qdd5 Re4 Bdc3 Rd4 Qd6+
3Nb3/k1n2QK1/B3p2r/2b1R3/NBQ1qP2/Qb3qQ1/2q1qNnB/r2R3n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 h5 Kd4 c5+ Ke5 Kc7 d4 Kb6 g4 a5 b4 e6 d6 a4 d5 c4 f3 a3 g5 a2 g6 e3 g7 h3 d7 h2 d6 e2 Qc2 c3 Nh3 h4 Ba3 Nf6 g8Q Rh6 Nf2 h3 Qf7 e1Q+ Qe4 c2 Nc3 c1Q Na4+ Ka7 Bd3 Qed1 Qc4 Qdc2 Re1 Q1d2 Rad1 h1B Re4 Qc7 d8N Qb7 d7 h2 Bf1 Na6 b6+ Kb8 b5 Nc7 Ree1 Bc5 Bb4 Nh5 Bd3 Qc6 b7 Nf4 Re3 Ng2 Re4 Rh4 Kf6 a1Q+ Re5 Rh6+ Kg7 Qac3 Be2 Ra6 Bf1 Ka7 b8B+ Ka8 b6 Q6e4 Be2 Bb7 Bf1 Bd5 Bd3 Nb5 Bc7 Qde2 b7+ Ka7 Bd6 Ra5 b8Q+ Ka6 Qc8+ Ka7 Qa2 Q3b3 Qa3 Nc7 Ba6 Qbc3 Nb7 Bb3 d8Q Q3d3 Qh4 Qde3 Qg3 Q3f4 Nd8 Qff5 Qc1 Qff4 Nb6 Ra1 Na4 Qfe3 f4 Q3f3 Qa3 Ne3 Be7 Bg2 Bh4 h1N Qcd7 Bf1 Qd4 Ng2 Qc3 Qe1 Qd4 Bb5 Qc4 Q1e2 Qh3 Ne3 Bg3 Ng2 Bh2 Be8 Qg3
8/2KN2Rn/1Q1PrN1q/1q4bQ/Q3N1R1/r1nb1rpB/Bn1B4/kn2b2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 f4+ Kd2 c3+ Kd3 a3 Kc4 g4 h7 c2 b6 f2 Kb5 f3 Bd3 f1N Rh4 a2 Qe2 g2 Nd2 g3 Nh3 g1N Nf2 Qg5 Rg4 Ra3 Qd1 Na6 b8N Nb4 b7 Nf6 Kb6 Qh6 Nh1 f2 Nd7 Ne2 b8N Ba6 Bc4 Rf3 Bb3 Rg8 h8Q Nh7 Nf6 Bd3 Nbd7 Nc3 Rb1 a1R Ba2 Rg6 e5+ Ke7 e6 Kd6 e7 Bg7 Bc4 Ra3 e8B Bf8 Ba2 Bg7 Nb3 Nd2 Nbc5 f1Q Rb3 Ndb1 Bd2 c1B Nce4+ Ke7 d6+ Ke6 d5+ Kf5 Ndc5 Ke5 d7 Kd4 d8Q Kc4 d6 Qe2 Ng8 Re6 Bd7 Bf6 Rg7 Bg5 Ngf6 Bb2 Kc7 Bc1 Bf4 Bd2 Qb8 Be1 Bd2 Qf1 Qb6 Qe2 Bc8 Qf1 Ncd7 Qe2 Nef2 Qe5 Qe8 Qb5 Qh5 Ree3 Nd5 Bc2 Nc5 Nd3 Bh3 Re6 Nd7 Nc5 Bf4 N5a4 N5f6 Bd3 Be3 Ne4 Rb4+ Kc3 Rd4 Kb2 Bd2 Nec3 Rg4 Ka1 N2e4 Nb2 Qa4
Q1n1kb2/QqB3Rb/R2p4/NRNn3q/1Qb3qr/4n1P1/2B5/BKb1Qr2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 f4 e5 b4 a5 c4 e4 Kc2 a4 b6 h3 b5 h4 c5 a3 b7 e3 c6 h2 c7 a2 g3 h3 f6 e2 f7+ Ke7 b6 e1Q f5 Nc6 b8Q Ra7 b7 Qe5 Ne2 Nf6 Nbc3 Nd5 Bf4 Rh4 Ne4 d3+ Kc1 Ra3 Nc5 Na7 Nd4 d2+ Kb2 Qe8 Qe1 Qe6 Bd3 d1N+ Kc1 N1e3 Bc2 Rd3 Ndb3 Rd1+ Kb2 Qg6 Na5 Qg4 Qa8 Rc1 b8Q Ba6 c8R Bc4 Rc7 Nc8 f6+ Kd8 Rf1 h1B Qba7 h2 Rb7 Be4 Rb5 h1Q Rf3 Be7 f8Q Bh7 f7 Bg5 Qd6 Rd1 f8B Qeh5 Bh6 Ke8 Bg7 Be7 Qdb8 Bf8 Bc7 d6 Rf7 Qhf3 Be5 Rc1 Rg7 Qff7 Qd2 Rf1 Qe1 Qe7 Rc1 a1B+ Kb1 Bc3 Rd1 Bd2 Ba1 Bc1 Rd3 Qd8 Ra3 Qe7 Qbb7 Nb6 Qe4 Nbd5 Qd4 Qee4 Qb2 Qh1 Qbb4 Qhf3 Nab3 Qff7 Ra6 Qfd7 Na5 Qc6 Rab6 Qb7 Ra6
n1qn2q1/K1Brbb1R/R1P2rk1/5qQ1/2B5/R1QB3p/N1N1Qn2/1Bbb4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 g4 h5 b4 a5 e4 f5 c4 Kf7 g6+ Kf6 e5+ Kg5 e6 a4 b6 a3 e7 a2 e8B d3 b5 h4 c5 d4 b7 d2 b6 f3 g7 f4 c6 d3 Bg6 Ra7 Nc3 Na6 b8R Nh6 g8Q Rd7 b7 Nf7 Nge2 Rh6 Ra8 Be7 b8Q Nc7 Ra6 Na8 Qb2 Qc7 Ra3 Nd8 Nd4 Ba6 Qb4 Bc4 Nc2 Bf7 Qe2 d1B Be3 d2 Bb6 Qb7 Bc7 Qc8 Be4+ Rg6 Rh2 Kh6 g5+ Kh5 Bd3 Rf6 g6 Kg5 g7 h3 Rg2+ Kh6 Rg4 Kh5 Rh4+ Kg5 Bc4 Kf5 Rh7 Kg6 Rc1 a1B Na2 Bb2 Ra1 Bc1 Qc3 Be8 Qd5 Bf7 g8B Be8 Be6 Bf7 Bf5+ Kg5 Kg1 f2+ Kh2 f3 Kg3 Bf8 Qda5 Be7 Bfd3+ Bd5 Bg2 f1Q Qb5 f2 Bge4 Qe1 Bf5 Bf7 Kf3 f1Q+ Ke4 Qff2 Qd5 Qg2+ Kd4 Qef1 Bfe4+ Qf5 Ra6 Rdd6 Kc5 Kg6 Kb5 Rd7 Ra3 Nb7 Ka6 Nd8+ Ka7 Qg5 Ra6 Qg3 Ncb4 Bc2 Qc5 d1N Qg1 Bd2 Nc1 Nf2 R1a3 Ba4 Nca2 Bc1 Bb1 Bd1 Bed3 Kg5 Rg7+ Kh6 Nc2 Qgg6 Qg3 Qh7 Qgg4 Qg8 Qg1 Bg5 Rh7+ Kg6 Qh2 Bd2 Qf4 Bc1 Qg5+
8/1kqB1q1Q/Rbp2r1N/2b1q1N1/n2rPnRr/1NBB1R1N/2Q4q/K4b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 d4 f5 Kd2 h5 Kc3 a5 b4 h3 Kb2 h2 e4 a4 d6 c6 d5 f3 b6 f2 b7 f4 g5 f3 b5 h4 g6 h3 b6 Nf6 g7 Nh5 g8B Na6 b8Q Qc7 b7 Nc5 Bd3 f1Q Qc2 f2 Bd2 Nf4 Qa7 Rh4 b8R Ba6 Rb3 Kc8 Bc3 a3+ Ka2 Bb5 Nd2 Na4 Bf7 Rb8 Bg6 Bc4 Be8 Rb4 d7+ Kd8 Ne2 Bc5 Rg1 h1Q Rg4 h2 Ng1 Qhg2 Qb7 h1Q Nh3 Qg3 Qa7 Qhh2 Qb7 Ke7 d8N Kd6 Bd7 Ba6 Ne6 Rd4 Neg5 Bb6 Re1 Bc4 Ka1 a2 Ra3 Kc5 d6 Kb5 Qb8 Ka6 Qh8 Kb7 Nb3 Bb5 Qh7 Ba6 Bb5 Qc4 Rb1 Qf7 Bd3 f1R Rc1 Nh5 Rb1 Rf6 Rf1 Qe5 Rf3 Bb5 Bf5 Nf4 d7 Nc5 Ra6 Bc4 Kb2 a1B+ Kb1 Na4 d8N+ Kb8 Bd7 Bb2 Qg8 Ba3 Qh7 Bac5 Ka1 Bb5 Nb7 Bc4 Nd6 Bb5 Nf5 Kb7 Nh6 Bc4 Qc1 Bb5 Bc2 Be2 Bd3 Bf1 Qc2
5RNB/4bB1n/PN1rb1RK/1k6/r1Qb1r1n/Q1q2pN1/4R2q/nNB3b1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Kg4 g5 a4 c5 d4 c4 e4 c3 h4 f3 e5 c2 d6 Kc6+ e6 f2 h6 f5+ Kh5 b3 h7 f4 e7 g4 e8Q+ Nd7 a5 g3 Qde2 b2 Rh2 g2 Q8e7 b4 Qc4+ Nc5 d7 b3 Ne2 g1B Ng3 Qc7 d8R Be6 a6 Nf6+ Kg6 f3 Be2 f1N h5 Ne3 h6 Nf5 d5+ Kb6 d6 Nh4+ Kg5 Rb8 Re8 Rd8 d7 Qc6 Qd6 Be7 Rf8 Bd4 Bd3 Rg8+ Bg6 Bg1 h8B Nh7+ Kh5 Bd4 Be3 c1B Bf7 Rg4 Re2 Rf4 Ra5 Bd2 Ra4 Be1 Bc1 Bef2 Rb4+ Ka5 Rb6 Qc7 Rc6 Bg1 Rb6 Qb8 Rc6 Qb4 Rb6 Qc3 Rc6 Rb8 d8N Rb4 Nb7+ Ka4 Nd2 b1R Na5 Rb2 Nb1 Rd2 Rb6 b2 Rc6 Ng5 h7 Nb3 Kh6 Na1 Qdc5 Bd5 Rg6 Be6 Nc6 Rd3 Nb8 Rd2 Qd6 Ka5 Nd7 Ra4 Nb6 Rd1 Nd2 b1Q Qa3 Qa2 Nb1 Rd2 Bg7 Qac2 h8N Nh7 Rf6 Bec5 Re5 Bde3 Ng6 Rd1 Ne7 Qh2 Rg6 Rd3 Qca2 Kb5 Bh8 Rd8 Re4 Bed4 Ng8 Be7 Re2 Rd6 Qc4+
2rNq1r1/2R5/pNNRBrqP/2bn1b2/1n1Q2B1/3BQQ1q/r6k/B2K3b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 b4 Ke7 e4 Kd6 c4 Ke5 h4 d5 c5 f5 c6 g5 c7 a6 b6 d3 h6 d4 h7 g4 b7 g3 h5 g2 h6 f3 b5 f4 b6 Qd6 Nd2 Qg6 Bb2 Ne7 Nh3 g1Q Ng5 Qe8 Ne6 Qgg6 Rc1 Nd5 Ba1 Bc5 Nd8 Bf5 c8B Rg8 Be6 Nc6 b8N Ncb4 Qe2 f2+ Kd1 f3 h8Q+ Kf4 e5 Kg3 Nc4 d2 Nbc6 Rb8 Qe3 Rc8 Bd3 f1B b7 Bg2 Rh5 Bh1 b8Q Kg2 Qd6 f2 Qf6 Kg1 Rg5+ Kh2 Nb6 f1R+ Qe1 Bh3 Qf3 Bf5 Qd7 Rf2 Qee3 Re2 Bf7 Rg2 e6 Rf2 e7 Rf1+ Ke2 d1R Rc4 Rb1 Be6 Rb2+ Rc2 Rf2+ Kd1 Ra2 Qa7 Qh5 Rg6 Qh3 Be2 d3 Qd7 d2 Bd3 Nf4 Qdd4 Nfd5 Rf6 Be4 Bg4 Bf5 Rd6 Qg6 Qfe4 Rf3 e8B Rf4 Bf7 Rf3 Ke2 Rf4 Q4f3 d1Q+ Kf2 Qb1 Be6 Qe8 Ke2 Qg1 Bh5 Qgg6 Bg4 Be4 Kd2 Rf6 Ke2 Bf5 Kd1+ Bg2 Rc1 Bh1 Ne5 Rf2 Qde4 Bd4 Rc7 Bc5 Nec6 Ra2 Q4d4
4k1q1/1K2R1RP/1n1bNn1q/B2B4/3rnN2/QBq2Qr1/Q1B2pb1/r4r1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 a5 e4 f5 b4 g5 h4 g4 c4 f3 c5 f4 e5 g3 e6 a4 c6 a3 e7 a2 b6 f2 c7 g2 h6 f3 b5 Bg4 c8B Nd7 h5 Rb8 b7 Nb6 h7 Nf6 h6 Ne4 Be6 Bh3 Na3 Ng3 Bd2 Ra8 b8Q Nf5 Nc2 Na4 b6 Qc8 b7 Ne3 Qd6 Bg4 b8Q Ra7 Qa3 Bh3 Ba5 Ng4 Ne2 g1R Qbb2 Nf6 Bg2 f1R Ng3 f2 Qf3 Nb6 Re1 a1Q Qba2 Rd7 Rh2 Rg8 Nh1 Rg3 h8N Qa8 h7 Qc3+ Ke2 d3+ Ke3 Qac6 Ng6 d4+ Kf4 d2 Ke5 d1N Bb3 d3+ Nd4 d2 Nf4 Q6c4 Re3 Qg8 Re4 Qc8 Nde6 Rd4 Re2 Nc3 Re3 Nfd5 Kd6 d1Q Re2 Qa6 Kc6 Qc1 Bc2 Qc4+ Kb7 Ne4 Bb3 Q4c3 Re3 Bg4 Rh6 Ndf6 Rg6 Bf5 Rg7 Bh3 Qfe2 Nd2 Bgd5 Bg2 Qf3 Nde4 Nc7+ Kd7 e8B+ Kd8 Re1 Bd6 Bg6 Q1d2 Bf5 Qde3 Nce6+ Ke8 Re2 Ra1 Re1 Rf1 Re2 Ng5 Bfc2 Nge4 Nh3 Qg5 Nhf4 Qh6 Re3 Nd2 Nf8+ Kd8 Ree7 Nde4 Rc7 Ke8 N8e6 Rg1 Rcd7 Rgf1 Rde7+
QK1RNr1n/r2RNqbp/2BQb2B/2qQ4/5P1b/4NQRq/8/1nb1kr2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 c5 g4 a5 g5 a4 d6 h3 d7 h2 b6 c4 g6 a3 g7 c3 b7 c2 d5 e6 d6 a2 Nd2 e3 Ne4 e2 Bh6 c1B f4 e1Q Nh3 Nf6 g8N Qe3 Bg2 Ra7 Qf3 Bg7 Nf2 Qe8 d8Q Qf7 d7 Nc6+ Kd6 e5 Kc7 Ne7 Nd6 e4 Nd1 Qc5+ Kb8 e3 Rg1 h1Q Ne8 e2 Ne3 Ng6 Ne7 e1B b3 Kc3 b4 Kd2 b5 Bh4 b6 Qh2 Bh1 Rg8 Rg3 Rf8 Rb1 a1R Rb4 Qb5 Rd4+ Ke1 Qd1+ Kf2 Bc6 Bd2 Kc7 R1a4 Bh1 Qh3 Rd5 Ra1 Rd4 Ra8 b8Q R8a7+ b7 Qc5+ Bc6 Ne4 Qh1 Rf1 Qf3+ Ke1 Qa8 Qc3 Rd3 Bc1 Rd4 Nh8 Rd3 Ra4 b8Q Nd2 Qb4 Nb1 Kb8 Ra6 Qda5 Ra7 d8R Bg4 R3d7 Be6 Qd6 Qb4+ Qb5 Qc4 Qb3 Qc5 Qbd5
3n4/4qBBp/kR1n4/1r3N1P/2BrQr2/2Rn3b/qbrQ1R2/q3QNKQ b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 fxg4 h4 Kd7 d4 Kc7 c4 Kb7 f4 a5 Kf2 g5 f5 e5 b6 a4 c6+ Ka6 b7 a3 f6 a2 d5 Qe7 c7 Nc6 b8R Nh6 h5 Nf5 f7 Nd8 d6 Bg7 d7 Nd6 Rh2 Rf8 Nf3 e3+ Kg1 g3 c5+ e2 c6 g4 Bb2 g2 Qe1 e4 Nh4 e3 Nd2 Bf6 Rd1 a1Q Nf5 Qa2 Rc1 Be5 Ba1 Bb2 Rc3 Ra7 Rb4 Rb7 Rbb3 Rb5 Rb4 Rg8 f8Q Rg6 Qg8 Rf6 Qd5 Rf8 Qe4 Rf6 Qh4 e1N Bc4 e2 Nf1 Nd3 Qf2 e1Q Rbb3 Bb7 c8Q Qeb1 Qb8 Bc8 c7 Rf7 Qfe1 Rf8 Nd4 Rf4 Nf5 Qd1 Rh3 Qc1 Rf3 Qd1 Rf2 Qc1 Kh2 g1R Qh1 Rg3 Qee4 Re3 Kg1 g3 Rb4 g2 Bf7 Ne6 d8Q Re2 Qe8 Bd7 Qbd8 Rc2 Qe1 Bc8 Qdd7 Nd8 Bc4 Qg7 Q8e4 Qe7 Rbb3 Ne8 Qdd4 Nd6 Qde3 Be6 Q3d2 Bd7 Ng7 Bh3 c8B+ N6b7 Bf5 Nd6 Bfe6 Qcb1 Bf7 Qd1 Kh2 g1R Nf5 Rgg4 Rb4 Rh4 Kg1 Qc1 Qe5 Rd4 Q5e4 Rf4 Bce6 Re5 Rb5 Qcb1 Bc4 Rc5 Rb7+ Rb5 Rb6+ Ka5 N1e3 Rdd5 Qd4 Ba3 Qde4 Qbb2 Rb3+ Qc3 Rb7 Ka6 Nf1 Qcb2 Rb8 Qbb1 Be5 Bb2 Rc3 Qba1 Bg7 Rd4 Rb6+
n3K3/Q3b1PQ/B1k3N1/2r5/1N2Q1qq/rN6/R1p1BBb1/1rnNqRbb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 e6+ Kd6 e7 c3 e8B h4 g6 a3 g7 a2 b6 h2 b7 h3 b5 c2 b6 Ra3+ Be3 Ra5 Be2 Nh6 Nc3 Ra7 Qe1 Nf7 B8b5 Ra5 Nd1 Be7 Ba6 Rh4 Bf2 Nd7 b8Q+ Qc7 b7 Nb6 Qa7 Rc5 b8N Na8 Nd7 Bb7 Ne5 Qd7 Ng6 Rh8 Qb4 Rc8 Qe1 Ra5 Qb4+ Rcc5 Qc4 Qc8 Qd3 Qe6 Qe4 Kd7 d6 Ra3+ Bed3 Qc4 Ne2 Qb4 Nec3 Ne5+ Ke2 f3+ Ke3 Qa4 Nd5 Kc6 Rf1 h1B Kf4 h2 d7 Qb4 Be2 Nd3+ Kg3 f4+ Kg4 Qe1 Kf5 Nc1 Ke6 Bg2 Kf7 h1Q d8Q Qh4 Qg8 Bh1 Be3 f2 Ke8 f3 Qh7 Bg2 Rb1 a1B Rb2 Qb4 Ra2 Bh1 Rg1 f1Q Bf2 Qfe1 Rf1 Bb2 Ndf4+ Kc7 d5 Bd4 d6+ Kc8 d7+ Kc7 Qe5+ Kc6 Nd5 Be3 Qf5 Qbg4 Qe4 Bg2 Bg1 f2 d8N+ Kd6 Ne6 Kc6 Ng5 Bh1 Nf3 Bg2 Nd2 Bh1 Nb3 Bg2 Bh2 Bh1 Rg1 f1R Bf4 Bg2 Rh1 Bg1 Bg3 Rf6 Bf2 Rf4 Qf5 Rb4 Qe4 Rb6 Nd2 Rb1 Nb3 Bh2 Rf1 Bg1 Qe5 Bh1 Qe4 Bf6 Nde7+ Kd6 Qb4 Bbg2 Nd5 Be7 Qe4 Kc6 Nb4+
1NRKR3/3nNrpB/N1Br2bQ/2r3n1/8/r1b3B1/nB3qRP/b2Qk2q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 b4 Kf6 e4 Kg5 d4 Kh4 d6 c5 b6 f5 b5 a5 d7 a4 d5 f3 Ke3 a3 Kf4 f2 Ke5 f4 Ke6 a2 b7 f3 b6 g3 d6 c4 e5 g2 Na3 c3 Bd3 f1Q Bh7 f2 Nh3 g1R Nf4 c2 Bb2 c1N Ng6+ Kh3 Ne7 Kg2 Nb5 Nh6 Nc7 Ra3 Na6 Nf7 Qd2 Qc7 Qh6 Qc2 Rb1 Kf3 Ra1 Rg4 Rg1 Ke2 Rg2 Rc4 Rb1 Rc5 Ra1 Nc6 b8B Ke1 b7 Qh1 Bc7 f1R b8N Bb7 d8Q Ng5+ Kd7 Qf2 e6 Ne5+ Ke8 Be4 d7 Bf5 Rb1 a1B Bd6 Kd2 Bc7 Na2 Rc1 Bd3 Rc2+ Ke1 Rc3 Nc4 Bg3 Nb6 Rc2 Rf5 Rc8 Rc5 Qc7 Bb1 Kd8 Bg6 Qd6 Rg8 Nec6 Rh8 e7 Rg8 e8B Be7+ Kc7 Bf6 d8R Bc3 Qd3 Rf8 Bd7 Rf6 Re8+ Ne4 Kd8 Rd6 Ne7 Ng5 Qc2 Re5 Kc7 Rc5+ Bc6 Nd7 Kd8 Re6 Bc7 Rd6 Qd3 Qd4 Qc2 Rf7 Qb3 Qf2 Qa4 Rd2 Bg3 Rd6 Qd1+
q1b1nqrq/1b3rp1/1Q4R1/BB1Q3k/4N2B/QQ1K1bn1/P2RN2n/1Nb5 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 h4 b5 d4 c5 f4 e5 h5 b3 d6 g3 f6 b2 d5 b4 h6 Kg6 h7 b3 f7 g2 d7 c4 d6 e4 Bd2 e3 Bc1 c3 Nf3 g1N+ Kd3 c2 Bh3 e2 f5+ Kh5 f6 e1Q Bf1+ Qh4 Be2 Nh6 Rh2 Ra7 Bg5 c1Q Nfd2+ Ng4 Ne4 Rg8 h8N Qc5 Ng6 Na6 Bd2 Qf5 Ba5 Nc7 Rf2 Be7 f8B Ne8 f7 Bg5 Be7 Bc1 f8Q Qff6 Bf1 Ne2 Qc2 Ng3 Rd2 Nh2 Nf4+ Kh6 Ne2 Kh5 Qc3 Bb7 Qc2 Qa8 d8Q Qff4 d7 Qh3 Nbc3 b1B Bh4 b2 Qa3 Qf8 Qb6 Bc8 d8Q Rf7 Kd4 Bb7 Qcb3 Bc2 Nb1 Bd1 Kd3 Qhc8 Ng1 Bf3 Qdd6 Qe6 Ne2 Qh6 Bh3 Qh8 Bd7 Bc8 Bb5 Bb7 Nbc3 Rf5 Qdd5 b1B+ Kc4 Bc2 Nb1 Bd1 Kd3 Bg4 Ng1 Bdf3 Ne2 Bh3 Qdc4 Rf7 Qd5+ Bf5 Qde6 Ngf1 Nbc3 Bb2 Rad1 Bc1 Nb1 Bh3 Qec6 Bhc8 Re1 Ne3 Rg1 Nef1 Rg6 Ng3 Qcd5+
n5Q1/2R1P1nb/B7/1R3QpN/1rR4k/1QB4r/1Knq1nbq/2NBb1Rq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 h4 Kf6 c4 g5 Kc2 a5 e4 d5 b4 d3+ Kb2 f3 b6 d4 b5 a4 h6 f2 h5 d2 c5 d3 c6 Qe8 e5+ Kf5 b7 Na6 b8Q Bb4 h7 Ne7 h6 Nc7 Qc2 Kg4 e6 d1Q b6 f5 b7 f4 Nd2 f3 Nb3 d2 Nh3 Qh5 Ba6 f1B Nf4 f2 Rg1+ Kh4 Qf5 Bg2 Be2 Qe1 Bd1 f1Q Rb1 Bd7 Qg8 Qff3 b8Q a3+ Ka1 a2 Bb2 Be8 Bc3 Bg6 Nc1 Ra4 Kb2 Na8 c7 a1N c8B Nc2 Ba6 Qfg3 Qbb5 Qh2 Qb6 Ba5 Qb3 Qf3 Nh5 Rb4 Qd3 Nf5 e7 Ng7 Qf5 Ra4 Ra1 Rb4 Ra4 Bb6 Ra5 Bf2 Rc5 Qee3 Rc7 Be1 Qgf8 Rg8 h8R Bh7 Q8f7 Rgb8 Rhc8 Qd4 Rc4 Qc6 Rc7 Rh8 Qg8 Qf3 Ra7 Qfh3 Rd7 Qh1 Rd5 Q3h2 Rb5 Bg6 Nf4 Kg3 Bf3 Qd8 Rc7 Qd7 h7 d1N+ Kb1 Nf2 Bd1 Qd6 Kb2 Qd2 Qc4 Rd8 h8R Rd3 Rh4 Bh7 Qg8 Re3 Nd5 Rf3 Rhc4 Rd3 Nf4 Kh4 Be2 Rg3 Bd1 Rh3 Nh5+
Nk4b1/1QbKPB1R/q2B4/bB1r1p1n/4nQr1/Rr3R2/6B1/N1b2qqQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 f5 Kd3 g5 Kc4 a5 Kd5 g3 b4 a4 c4 d3 h4 g4 e4 d2 b6 d6 b7 Kd7 e6+ Kc7 h5 a3 e5 g2 b5 a2 e7 g3 e8B Rh7 e6 Re7 h6 Ra6 h7 Ra8 h8Q Rg7 e7 Ra6 c5 Rg4 c6 Qd7 Qf6 Ra3 Nh3 g1B Ng5 g2 Bf7 Bb6 Rh7 g1Q Bg2 Rb3 Na3 Na6 b8R Ba5 Nc2 Nc5 Ba3 Ne4 Rb6 Bb7 Ne6+ Kb8 Nc7 Bh6 Na8 Qc8 Ra6 Qf1 b6 Bg5 Rc1 a1B Qe1 Be5 Na1 Qg1 Rc3 d1R+ Rd3 Bgd2 Rf3 Bef4 Qh6 Qf1 Qh1 Bc1+ Qd2 Be5 Ra7 Ba6 b7 Bd3 Qc3 Bg3 Kd4 d5 Qc2 Bgc7 Bd6 Bb5+ Ke5 d4 Qc3 d3 Kd5 Qd8 Ke6 d2 Ra6 Qf8 Kd7 Qh6 Ra7 Bc4 Qf6 Bc3 Ra3 Ba5 Qg6 Re1 Qe6 d1Q Qd5 Re2 Qb5 Rd2 Qd5 Ka7 Qe6 Rd5 b8Q+ Ka6 Qb4 Ka7 Qd2 Qg1 Qf4 Qdf1 Qg6 Bb6 c7 Ngf6+ Ke6 Nh5 c8B Bc7 Ba6 Kb8 Bb5 Qf8 Kd7 Qc8+ Kc6 Qb7+ Kd7 Qa6 Qe6 Rd1 Qd5 Rd2 Qc6 Rd4 Be8 Bg8 Bf7 Rd5 Qb7+
Q1KB4/r3pn1k/3rn1N1/1n3NQb/Q4q1N/n2qb2P/2B1Rr1R/3qR2Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 a5 b4 e3 f4 g3 d4 c4 d6 e2 d7 e1Q+ Be3 a4 Ke6 g2 b6 a3 h3 a2 b7 c3 d5 c2 f5+ Kh7 d6 c1R f6 g5 b5 g4 b6 g3 f7 Na6 b8Q Bh6 f8N+ Kg7 b7 Bf4 Qa7 Qf2 b8R Rh6+ Ng6 Kh7 Rh2 Rc2 Bb6 Be3 Nf3 g1N Nd4 g2 Bd3 Nf3 Nf5 g1Q Nd2 Qh1 Rc1 a1N Qf1 Rb2 Re1 Nc2 Bc7 Ra2 Rb2 Na3 Bc2 Bb7 Qd4 Ra7 Qa4 Qh4 Qg2 Qf4 Qg5 Qf1 Ba5 Qd3 Rhe2 Nh2 Bb6 Bf3 Bc7 Bh5 Nf3 Qd1 N3h4 Nf3 Ba5 Nf6 Bc7 Ne4 Rh2 Ne5 Rhe2 Qh8 d8Q Nc3 d7 Ncb5 Qa8 Nf7 d8Q Qhd4 Qdd5 Q4d3 Kd7 Nc5+ Kc8 Ne6 Qh1 Nc5 Ne5 Rd6 Bd8 Ne6 Neg6 Qf1 Bb3 Qf4 Rbd2 Rb2 Rh2 Ra2 Rdg2 Rf2 Bc2 Rf1 Rd2 Rf2 Rde2
2B1N1b1/rR2p1N1/5b2/r2k1qq1/n2N2nQ/BQ1Q3P/B1rRr1b1/3Nn1K1 b - - 0 1 illegal: No possible last move, all moves rejected
2Rq1RrQ/1RBnp1b1/B1b1kn2/6Q1/Q3P2K/4BN2/1b1Nr2B/3nn1qr b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 e4 Kf7 f4 c5 Kf2 h5 Kg3 a5 b4 g5 d4 g4 f5 a4 d6 c4 d7 a3 b6 c3 f6 c2 b7 a2 b5 h2 d5 Ra3+ Be3 c1B b6 Bg7 d6 Ke6 f7 Nf6 f8R Bb2 Nd2 Rg8 Rb1 a1N Qa4 Ra2 Kh4 g3 Ngf3 g2 Ba6 Nc2 Rhc1 Ne1 Rc7 h1N Rbc1 Nc6 b8B g1Q Rb7 Ne5 Bc7 Nf2 Rc6 Nd1 Rc5 Qe8 d8Q Bd7 Rc3 Bb5 d7 Bc6 Qa8 Qc8 d8Q Ned7 Qe8 Qd8 Qg6 Ba1 Qg5 Rb2 Nb3 Re2 Nbd2 Bb2 Bh2 Bb5 Rc8 Bc6 Ra7 Rh8 b7 Rg8 Kh3 h4 b8B Be5 Bc7 Bb2 Bhg3 Nh5 Kg4 h3 Rb7 h2 Kh4 h1R+ Bh2 Nhf6 Qa7 Ba1 Qac5 Be5 Qh5 Ba1 Qcg5 Bb2 Qh8
3RB2k/3p1N1N/2Q3rb/qb3N2/RB1QR1r1/nP2n3/2b1r3/bnBq1R1K b - - 0 1 legal: proof: f4 c5 h4 b5 a4 g5 axb5 gxh4 d4 e5 dxc5 exf4 Kf2 f5 e4 Kf7 c4 Kg7 g4 h5 Kg2 a5 e5 f3+ Kh2 f2 g5 h3 b6 a4 c6 h4 c7 f4 c5 a3 b3 a2 b7 f3 e6 Rh6 e7 Nf6 e8N+ Kh8 g6 Ra4 c6 Nd5 Na3 Na6 b8B Ne3 Nb5 Bb7 c8R Nb4 c7 Nbc2 Nbd6 Be4 Be2 f1B Nf5 f2 Nf3 Na3 Ne5 Bc2 Bh5 Bb5 Rf1 Rg4 Kh1 h2 Qd4 Qg5 Rd8 Bg7 Re1 f1N c8Q Nd2 Bd6 Ndb1 Qc6 Bf8 Ra8 Qd8 Re2 Qa5 g7+ Kh7 g8R Nd1 Re4 Qa6 Qdc4 Ne3 Qd4 Nd2 Bb4 Re6 Bf7 Reg6 Bb2 Bh6 Rc1 Qb6 Ra4 a1B Rg1 Qc7 Bc1 Qa5 Rf8 Ndb1 Re1 Rg8 Nf6+ Kh8 Nh7 Bcd3 Ra8 Bc2 Be8 R8g6 Ng3 Nec4 Kg2 h1R Rd1 h3+ Kf3 h2 Rd8 Re1 Nf5 h1Q+ Kf2 Qh4+ Kf3 Re2 Rf1 Qe1 Ng3 Re3+ Kg2 Qd1 Kh1 Re2 Nf5 Ne3 Nf7+
1B4k1/2Pr1qR1/Nq1N2nK/b1Q1Q1r1/1p1Q2B1/Q1Rb1b2/n3N1q1/Rn2q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 e5 Kg4 d5 c4 b5 h4 g5 a4 d3 f4 d2 h6 d4 Kh5 g4 h7 g3 a5 b3 a6 b2 a7 g2 c5 d3 c6 e4 f6 e3 f5 e2 Na3 b1Q Nc4 e1Q Rh3 Bd6 Ne2 Ne7 Kh6 g1Q h5 Rg8 h8Q Kf8 f7 Qc7 Qe5 Bb4 Nd6 Rg5 Rg3 Ba6 Bh3 Qa2 Bg4 Ba5 Qa4 d1N Qad4 d2 Rc3 Qg2 Bb2 Nd7 Ba3 Rd8 a8N Qa7 Nc7 Ng6 Bc5 Qb8 Ba7 Qb6 Bb8 Nf6 Qf2 Nd5 Qfd4 Bb7 Na6 Nb4 c7 Bf3 Qec5 Ke7 f8R Rd7 Rh8 Qf7 Rh7 Kf8 f6 Na2 Qa3 b4 Qe5 Ne3 Qd4 d1B Qe5 Qd5 f7 Bc2 Qd4 Bf5 Qe5 Nc2 Qd4 Ke7 f8Q+ Ke6 Rf7 Qgg3 Qb2 Qf4 Qfh8 Bg2 Kh7 Na3 h6 Nb1 Qc5 Rh5 Qhd4 Rg5 Qa3 Qh2 Kg7 Bf3 h7 Qg2 h8Q Qc4 Kh6 Qb3 Bh5 Bd3 Rh7 Qc4 Qf4 Qd5 Bg4+ Qf5 Qe8+ Kf6 Qfe4 Qd5 Qec4 Qf7 Qh8+ Ke7 Qhe5+ Kf8 Q4d4 Kg8 Rg7+
B7/1bpRBQ2/R1rq1QKQ/bk5r/3N2N1/r1P2Qn1/bR6/qn2B1nn b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 h5 Ke3 a5 Kf4 d5 b4 Kd7 Kf5 a4 f4 a3 g4 h3 b6 Kc6+ e6 d4 g5 e3 g6 e2 b5+ Kc5 g7 e1R b7 d3 c3 h4 b6 a2 Kg6 h2 f5 h3 f6 d2 e7 Nd7 b8Q Ra4 e8Q Re7 b7 Rf7 Qf3 d1B Nd2 Ra3 Bg2 Rh5 Qe7+ Kb5 Nb3 Be2 Bf4 Bc4 Bd2 Bd5 Qee3 Bb4 Qh6 Ba5 Be1 Be6 Rd1 a1Q Rd3 Rf8 f7 Ngf6 g8Q Ne4 Rd4 Re8 f8B Nd2 Qgf7 Nb1 Be7 Rh8 Qa8 Bd5 b8R+ Bcb7 Q3f6 Ne5+ Kg7 Nf3 Kg6 Qd6 Ra4 Nd4 Nf3 Ne2 Ne5 Ng1 Ng4 Bc4 Bf3 Rc5 Rd8 Rc6 Rd7 Rh7 Qd2 Rh5 Qh6 Bb6 Ra6 Ba5 Nd2 Ba2 Nb3 Ne2 Rg1 h1N Rg2 Ng1 Rb2 h2 Be4 Ng3 Bd5 h1N Bg2 Rc4 Qaf8 Bc8 Ba8 Rcc5 Rf2 Bb7 Rb2 Qd4 Qf3 Qd6+ Q7f6 Rc4 Qf7 Rc6 Nd4+
2Qb1KB1/rpBRQ3/n1B3b1/4qN2/1b3QN1/1n3r1B/P1R1q1k1/rn2r2N b - - 0 1 illegal: No possible last move
qk1NNqn1/1p1QN1QN/B1Q5/bRn1r1B1/1q1b1R2/nP1b4/6r1/2KR3n b - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 Qc2 a3 Qb2 axb2 Kd1 Kd7 d4 c5 f4 Kc7 a4 e5 g4 h5 a5 c4 a6 c3 a7 h3 g5 h2 f6 h4 g6 h3 f7 e4 g7 e3 f5 Nh6 g8N Be7 f8R Bd7 d6+ Kc8 f6 Be6 f7 Bf6 d5 Bd4 Nd2 b1N Ba6 Bf5 Ngf3 Bd3 Ne4 Na3 Nfg5 Nd7 Nef6 Nc5 d7+ Kc7 Re1 h1N Ne7 h2 Ngh7 Rg8 Ra2 Rb8 a8Q Rg2 Rc2 Qc8 d8N Ng8 Qa7 Ra8 Qb6+ Kb8 d6 Qf5 Bd2 e2+ Kc1 Qf3 Rg1 e1B d7 Qf2 Ra2 c2 Bg5 Ba5 Rd1 Qe1 Ne8 Qb4 Bc4 Ra6 Qc6 Rb6 Ba6 Rb5 Bh4 Ne4 Ra1 Re5 Bg5 Nc5 Ra2 Nf2 Ra1 h1Q Ra2 Qf1 Ra1 Nc4 Ra3 Nh1 Ra1 Bb6 Ra5 Na3 Rb5 Qf3 Ne6 Ba5 d8Q+ Ka7 Qdd7 Kb8 Nd8 Qf5 Nc7 Qf3 Re8 Qf6 f8Q Qf1 Qfh6 Qf8 Qg7 Re1 Ned5 Nb1 Re4 Bb6 Rf4 Re4 Ne8 Re5 Nc3 Bc7 Kb2 c1Q+ Ka1 Bf2 Nd5 Qcd2 Ne7 Qa5+ Ra4 Na3 Rf4 Qdb4 Kb2 Bd4+ Kc1 Qaa4 Rb6 Qaa5 Bb5 Qa7 Ba6 Qa8 Rb5 Bb6 Rf7 Ba5 Rf4
2Nbb3/n4R1K/2B2Br1/1q6/1bk1bp1b/1r4NR/QPn2nBQ/1R1RN1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 e4 c5 h4 f5 b6 a5 b7 g5 h5 f3 Ke3 a4 h6 g3 h7 g2 Qb3 g4 Kf4 c4 Bd3 a3 Bf1 g3 Nd2 a2 Rh3 f2 Ndf3 c3 Ne2 g1B Bg2 f1B Rb1 a1N Qa2 c2 Ne1 Qd7 Kg5 Ra6 Kg6 Nf6 Bg5 Ng4 Bf6 Nc6 b8R c1B Rb7 Bg5 Rc7 Qe8+ Rf7 Be7 Kg7 f4 Kg6 Rf8 h8Q Bb7 Kh7 Nc2 e5+ Kd7 e6+ Kd6 Rc1 Na7 Rb1 Bd8 e7 Qb5 e8B Nf2 Bc6 Rg8 Bf3 g2 Ng3 Ra3 Be4 Bh2 Bf3 g1B Be4 Be7 Bg2 Kc7 d6+ Kb6 d5 Kc5 d7 Rg6 d8R Rb3 d6 Kc4 d7 Bb4 Ra8 Be2 d8N Bh5 Rc8 Ba8 Nb7 Bh4 Rd8 Bg5 Ne2 Bg3 Rdd1 B3h4 Ng3 Bf8 Bc3 Bd8 Bf6 Bb4 Nd6+ Kc5 Be8 Be4 Nc8 Kc4 Bc6 Be2 Qf8 Bg4 Qd6 Bd7 Qd2 Be8 Bf3 Nh1 Qh2 Nf2 Bg2
2R2bNn/R3QB2/1N1r2N1/4rpb1/q1nbP1R1/bB6/bNn5/kQBKb3 b - - 0 1 illegal: No possible last move
QrN1nQ2/bbN1N1B1/2rP2b1/1qRRnR2/n1B2n2/3nN3/Bp2k3/2n3K1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 Kd6 Kf2 Kc5 g4 Kd4 d3 e5 f6 h5 a5 c5 g5 b5 g6 h3 f5 c4 f7 c3 a6 b3 d6 h2 g7 c2 f6 e4 a7 h4 d7 b4 Nh3 b2 Kg2 e3 Ng1 e2 Nd2 Ke3 d4 b1N d5 b3 Bb2 c1N Ra5 Nc3 Ngf3 Na4 Rc5 Bb7 Ne1 Rh6 Ne4 Qe8 d8R Nd7 Nd6 Rb8 a8N Ne5 Nc7 Qb5 Nc8 Be7 Rg1 h1N f8Q Ng3 f7 Nf6 g8B h3+ Kh2 Ne8 Nc2+ Kf3 Ne3 Nh5 Rg5 Rc6 Kg1 Nf4 Rf5 Bg5 Qc2 e1N Bc4 Ne1d3 Bd4 Bh4 Qa2 b2 Bc3 Ke2 Rd7 Ng4 Bg7 Ne5 Qa1 Nb6 Qa8 Na4 d6 Be1 Re7 Ba5 Re6 Bb6 Rh6 Ba7 Rhh5 Ng4 Rfd5 Ne5 Rf5 Qa5 Qe7 Qb5 f8N h2+ Kh1 Nf6 Ng6 Ne8 Qd8 Ne6 Kg2 h1B+ Kg1 Nf4 Nge7 Be4 Ba2 Nf6 Qf8 Ne8 Rf6 Bg6 Rf5 Bb6 Rd4 Ba7 Bgc4 Kd2 Rdd5 Ke1 Qf6 Ke2 Qf8
2R1r3/nr2r1Qb/1B1P4/pB3RQB/1N5q/2br1rR1/N2n1B2/kQ1K1b1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 c5 g4 f5 g5 a5 g6 h5 g7 f3 b6 f2+ Kd2 h3 b7 h4 b5 c4 b6 h2 Na3 h3 Qf3 f4 Qh5 f3 Ra2 c3+ Kd1 Nf6 g8Q Rh7 Ne2 Nc6 b8R Bg7 b7 Na7 Nc2 Bf5 Rg1 h1R Nb4 h2 Rc8 Rb8 Rg3 c2+ Kd2 Bh8 Nc3 Re7 Bb5 f1B Qhg5 f2 Q8g7 Bh7 Ra1 Rg1 Nca2 h1R Ba3 c1R Rb1 Rc3 Kd1 Ra8 b8Q+ Rcc7 Bc1 Rh3 Be3 Rgh1 Qb7 Rb8 Rb3 Re8 Rf3 Rce7 Rf5 Nd7 Rd3 Nc5 Rc3 Nb3 Rd3 Nc6 Qb6 Nd2 e5+ Kd7 d6 Ke6 Qb7 Na7 d7 Rg3 Qe4 Rb7 Rb3 Rf3 Qb1 Rg3 Nd3 Kd5 e6+ Ke4 d5 Rgh3 d6 Rg3 Q7h6 Bc3 Bc5 Rgh3 Ndb4+ Rd3 Qhf6 Qc7 Be3 Qc4 d8B Qd4 Qfg7 Qf6 Bf4 Kd4 Bg3 Be2+ Kc2 f1R Bc7 Rff3 Bb6+ Ke4 Bgf2 Bf1 Kc1 Qh6 Kd1 Qh4 Ra3 Bd4 Be1 Rh8 Q7g6 Rf2 Nc1 Rec7 e7 Re8 Qb3 Rg3 Q6h6 Bh8 Rc5 Kd4 Qb1 Rb3 Rd5+ Kc3 Rf5 Rf4 Bef2 Bg7 Qe4 Kb2 Nca2 Ka1 Qhg6 Be5 Qg7 Rg3 Rf3 Bc3 Qd3 Rd4 Qc2 Rd3 Qb3 Rh8 e8B Re7 Bh5 Rhe8 Qc2 Rgg1 Rh3 Rgg3 Qb3 Rge3 Rg3 Rf3 Qb1+
4BB2/bB5N/2r1nb1Q/1q1Q2R1/q1Q1nNk1/1b1Nb3/Q2br1Pp/5KRb b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 dxc5 gxh4 f4 Kf7 b4 Ke6 c4 Kf5 b6 e5 b7 h5 b5 d5 b6 a5 c6 e3 c5 d4 c7 a4 c6 e2 Qd3+ e4 Nd2 h3 Ngf3 h4 Nb3 a3 Rb1 a2 Nbd2 a1B Ba3 h2 Bd6 h3 Nh4+ Kg4 f5 Ra2 f6 Na6 b8Q Qe8 b7 Bh6 f7 Nf6 f8N Be3 Rg1 h1B Qa8 h2 b8Q Rh6 Qb6 Nc5 Nhg6 Be6 Nf4 Bb3 c8Q+ Ne6 c7 Qb5 Nc4 Bb2 Qc2 d3 Nh7 Bbd4 Qba6 Ba7 Qd1 Rc2 Nb2 Rc6 Qd2 Rh5 Ra1 Re5 Qa2 Rc1+ Nd1 Qb4 Qcb7 Bec5 Qc6 Ba4 c8B Qc4 Qe3 d2+ Kf2 Bd4 Nb2 d1Q Rb1 Qdb3 Nbd3 e1B+ Ke2 Qb6 Rb5 Bh4 Nd5 Bb3 Qh6 e3 Bf8 Qa4 N5f4 Rc4 Nb2 Qba5 Kd3 e2 Bd7 e1B Be8 Bd2 Qc5 Ne4 Ke2 Nd6+ Qe4 Bf6 Qb4 Rg5 Rf5 Rc6 Qd5 Bdb6 Qbc5 Rh5 Kf2 Q5b4 Ba6 Qbb5 Bb7 Rh3 Qcd4 Re3 Q4c4 Re2+ Kf1 Bbe3 Nbd3 Ne4 Rg5+
2r1R2r/1Bn4r/QbrRQK1n/1qB3NN/nB1NR2n/8/N3P1bp/5k1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 h5 g5 f5 d6 a4 g6 f3 b3 f2 b6 h3 d3 a3 d7 h4 b7 a2 g7 h2 Nf3 f4 Bd2 h3 Be1 Nh6 g8Q Qe8+ Kf6 Na6 d8B Qb5 b8R Bb7 Ng5 Kd4 b4 Ke3 d4 c5 d5 c4 d6 f3 d7 c3 Qd6 c2 Bg2 f1R Be7 c1R d8N f2 Nc3 Nc7 Qa6 Rh7 Rg1 h1N Nc6 h2 Re8 Rc8 Nd4 Rc2 Rb1 a1N Rd1 Nb3 Na2 Nc5 Qge6+ Be4 Bf3 Na4 Rg4 Rc6 Bc5 Rg1 Bg2 f1N Bd2+ Kf2 Bc3 Bf3 Re4 Nfg3 Rd2 Qc4 b5 Ngf5 b6 Qb5 b7 Nh4 b8N Rf1 B3b4 Bd6 Ba7 Bc5 Nd7 Bb6 Rd1 Ba5 Bac5 Bb6 Ne5 Rh8 Ng6 Kg1 Nf4 Rh7 Bh3 Bg2 Rd2 Rc1 Nh5 Rc3 Bg4 Rh3 Bf3 Kf1 Re3 Rd6 Bb7 Rc6 Re4 Rg3 Nh3 Rg8 Ng5 Rgh8 Ndf3 Re7 Rd6 Reh7 Nd4
2b1Q2b/N6R/n1Bq3Q/1Qn1R2r/3N1r1n/1n2pNrB/rB1P4/1Bk3nK b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 g4 Kf7 f4 Ke6 Kf2 Kd5 Kg2 Kd4 b4 e5 f5 h5 f6 a5 b6 c5 b7 e3 b5 e4 b6 a4 g6 c3 g5 h4 f7 a3 g7 c2 g6 e2 Nf3+ Kd3 Rh3 c4 Nd4+ e3 Kg1 c3 Ra2 Nh6 g8B Qd6 g7 Ra4 Nf3 Na6 b8N Nf5 b7 Rh5 Rh1 h3 Rb2 a2 Bh7 a1R g8B R1a2 Na3 Bg7 f8Q Rf4 Rb5 Bh8 Bb2 c1N Qe8 c2 Bd5 Nb3 Nc6 c1N b8Q Nbc5 Na7 N1b3 Nc2 h2+ Kg2 Rh3 Bc6 Rh5 Ncd4 Rh3 Rg1 h1R Qe1 Rh5 Qh4 Rh3 Rh1 Rg3+ Kh2 Qd5 Ra5 Qd6 Bh3 e1N Qf6 Rhg5 Qh6 Rh5 Ne2 Kc2 Ned4+ Kd1 Rb5 Nh4 Bb1 Ne4 Re5 Nec5 Bc3 Kc1 Qb5 Bd7 Rg1 Bf5 Kh1 Bc8 Rg2 Qf8 Rh2 Qd6 Ng5 Nef3 Ba1 Kd1 Bb2 Ng1 Ngf3 Nf5 Qg7 Rh7 Bg2 Rh6 Rh5 Nh4 Bh3 Rh7 Re7 Rh6 Rhe5 Rh5 Qf6 Ng2 Rh7 Nh4 Ba1 Kc1 Qh6 Bg4 Bc3 Bc8 Bb2+
Nb1RbB2/2QBqQ1B/8/nb3Kbb/5Rrb/prN2k1q/2QR1P1Q/3n4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 h5 d4 e5+ Ke3 Kg5 b4 a5 d6 h3 d5 h4 b6 a4 b5 h2 b7 c4 b6 h3 d7 a3 d6 c3 Qd4 c2 Nd2 Nh6 Qd5 Nf5+ Ke2 Kf4 g5 e3 Kd3 e2 g6 e1B g7 e4+ Ke2 e3 Kd3 e2 g8B Qe7 d8R Ra4 d7 Ne3 Qa2 Nd1 Bb2 c1B Bh7 Nc6 Bg7 Na5 Nc4 Bc3 b8Q+ Be5 b7 e1Q Ne2+ Kf3 Qc7 Bg5 b8Q Ba6 Qc2 Bb5 Nc3 Bef6 Bh6 Q1e6 Ra2 Be5 Rg1 h1B Rg4 h2 Bh3 Bg2 Qca7 h1B Re4 Bef6 Qh2 Be5 Qb7 Bb8 Qd5 Qf5 Qf7 Rb4 Kd4 Rb3 Nb6 Rg8 Na8 Bgf1 Rh4 Bfe2 Rg4 Bh4 Re4 Rg4 Bg7 Qe6 Rb2 Bfd6 Bf8 Bf4 Ra2 Qe7 Rb2 Qff6+ Kd5 Qh8 Rd4 Qc5+ Ke6 Qe7+ Kf5 Bfg5 Ra2 Rb1 Rb2 Bg2 Rbb4 Rb3 Rd2 Bgf1 Re8 Bc6 d8Q Beb5 Qdc7 Bfe2 Red8 Be8 Qg7 Bh5 Qf7 Be8 Bf1 Ba6 Bc4 Bab5 Be6 Ba4 Bd7 Bb5 Na4 Qc3 Rbd4 Qce3 Nc3 Qd3+ Re4 Qf1 Rb4 Qh3 Rf4+
3R1r1Q/k2Q2R1/2NnbR2/n4Q2/7P/rnp2Nq1/nb3b1N/Bn2NBbK b - - 0 1 illegal: No possible last move
RB1nr3/1k1q1B2/r1R1bK1N/R1b1r2B/2Q2PN1/2rnr1r1/pQ4RN/2q5 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 Kc7 g4 h5 d4 c4 b4 a4 g5 c3 d6+ Kb6 d7 h3 d5 e3 g6 e2 d6 e1R+ Qe2 h4 g7 a3 Nf3 c2 Nh2 e6 Ng4 h2 Bf4 c1Q Rg1 h1R Rg2 h3 Nd2 h2 Nf3 Qdc7 d8N Na6 Nf7 Kb7 b6 Qd7 b5 Ne7 g8B Nc5 Nfh6 Rg1 Kf6 h1R Qc4 e5 Be2 e4 Nfh2 e3 Bf7 Nc6 Be5 Nd3 f4 Nd8 Bd1 Qe8 d7 e2 Bb8 Bc5 Ra2 Ra6 Ra1 Nc6 d8R Be6 Rd6 Nd8 Rc6 Qd7 Ra2 Ref1 Ra1 e1R Bf3 Re3 Raa2 Rfe1 Ra1 Qc7 Be2 Kc8 b7+ Kd7 Ba7 Qd1 b8R Re5 b6 Re8 b7 Qc2 Rf2 Rg3 Ra8 Qd6 Bd1 R1e3 b8Q Qc7 Be2 Rc1 Rg2 Qb2 Qbb4 Rc3 Nf2 Qc1 Bb8 Kc8 Beh5 a2 Nfg4 Bb6 Rb1 Kb7 Rb3 Qd7 Ra3 Qd2 Ra5 Qc1 Qa3 Bc5 Qb2+
RQ4K1/4b1R1/b4BQ1/1bb2B2/Nq1rP1n1/krn2Bn1/n3R1pn/BNQ5 b - - 0 1 illegal: No possible last move
3NK1Bn/r4n1Q/1BrQ4/1n2b3/2kpnnr1/3B2Q1/1PN1qrNR/Rb3B2 b - - 0 1 illegal: No possible last move
8/BNBrrN1N/n1B1QbQ1/k2bq3/bqp5/2P1R1Q1/bNb2n2/R3Kb2 b - - 0 1 illegal: No possible last move
2bn3b/k1B4n/1rn3r1/2b2n1q/p1RN2P1/b3b2B/1QK1QN1N/1Q1B2RN b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 b4 Kd7 f4 a5 d4 e5 Kd2 c5 g4 Kc7 g6 Kb7 g7 h5 b6 e3+ Kc2 h4 d5 h3 d6 e4 f5 c3 d7 c4 f6 a4 b5 e2 f7 e1B Bh6 h2 Ne2 e3 Bh3 Nf6 g8B Ra6 Bf4 Bc5 f8N Rh6 Ng6 Nc6 Bc7 Nh7 Rg1 h1N Ng3 e2 Nd2 Qe8 Nf3 Nd8 Nf4 Qh5 Nh2 Rg6 Nd3 Bd2 Qf1 e1B Qe2 Bde3 Rc1 Ka8 b7+ Ka7 b8N Rab6 Nf2 B1d2 Bd5 Bed4 Ba8 Bh8 Bf3 Bde3 Nc6+ Kb7 Nd4+ Ka7 Nge4 Ng3 Nh1 Nf5 Nef2 Rgf6 Kb1 Rfe6 Qb2 Rg6 Bd1 c2+ Ka2 Nf7 d8Q c3 Qe8 Nd8 Ka1 Bh6 Qe2 Be3 Rb1 c1B Ka2 Bcd2 Rc1 c2 Qb1 Bdb4 Kb2 Ba3+ Kc3 Rbd6 b6+ Ka8 b7+ Ka7 Qb2 Rb6 Ra1 c1N Kc2 Nd3 Rc1 Ne5 Qb1 Rb5 Qb2 Nec6 b8Q+ Ka6 Kd3 Rb6 Rc4 Rb4 Qb5+ Ka7 Qb1 Rb2 Qb4 Rb3+ Qc3 Rb7 Kc2 Rb6 Qcb2
r1B2Q1b/1b3K2/1Nq2QN1/nNr2Pbr/2B1Rb1R/k3r2n/3p1B2/3r1NR1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kd6 Kh5 Kc5 g4 Kb4 c4 a5 f4 e5 b6 a4 b3 e4 c5 e3 g5 e2 b7 e1B f6 d3 g6 d2 c6 h3 c7 h2 f5 a3 g7 a2 f7 d4 Bc4 d3 Bb2 Bd6 f8N Nh6 g8B Bf4 Nf3 Nc6 b8R+ Bb7 c8N Qd6 Nd4 Na5 Bge6 Nf7 Nb6 Bh4 Re8 Bhg5 Bc8 Qc6 Nb5 h6 Qc1 d1R Ng6 Rf8 Re6 Re8 Bd4 Re7 Re2 Re3 Qb2 Rc1 Rg1 h1R+ Rh2 Rc2 Rh4 Rc3 Rg4 Rd1 Nd2 Rcc1 Rb1 a1B Nf1 d2 Rg1 Be7 Rgg4 Ng5 Rg1 Nh3 Rgg4 Re5 Bf2 Re3 Qg7 Beg5 Qf6 Bg3 Re4 B3f4 Na7 Ka3 b4 Rcc3 b5 Rc2 Ne5 Rcc1 Kg6 h5 Kf7 Rcc3 Ng6 Rcc1 Qd8 Bh8 Qf6 Rc2 Nd5 Rcc1 b6 Rcc3 Be2 Rc5 Bc4 Bh6 Rc1 Bhg5 Nb5+ Ka4 Rg4 h4 Rd4 Ba6 b7 Ng1 b8Q h3 Qc7 h2 Qcd8 h1R Qf8 Rde1 Re4 Rh5 Rh4 Nh3 Nh2 Bb7 Nb6+ Kb4 Rc2 Ra1 Rc1 Rb1 Rg1 Rd1 Be2+ Kb3 Nf1 Ka2 Bd3 Kb3 Bc4+ Kb4 Nc3 Ka3 Nb5+
1bq1n1BN/8/1K3QR1/1n1Pp1bb/1QB2BbQ/k7/1Nbrr1Nq/1b1R2B1 b - - 0 1 illegal: No possible last move, all moves rejected
4K1B1/6Rn/4n1rQ/Qk1p3N/2rQ3r/2rnN1Rn/PrbR1b2/1NR1B2q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 Kf3 g5 Kg4 b5 h4 b3 c4 d3 f4 b4 c5 e4 h6 d6 Kh5 Kd7 Kg6 Kc6 Kf7 d2 h5 g4 h7 g3 f6 g2 h6 b2 f5 e3 Bc4 e2 Rh3 e1R Rg3 b3 Ne2 g1N Nf4 Re3 Qe1 d1N Nh5 Na6 Qa5 Nh3 Bd2 Rc3 Be1 Ndf2 Be6 Qc7+ Ke8 d5 f7 Nd3 f6 Qe5 Rg7 Qe4 Rg3 Bg7 f8R Qh1 f7 Bd4 Rg7 Bf2 Rg3 Ne7 Rfg8 Ng6 f8Q Rc4 Qg7 Nf8 Qd4 Ra7 R8g6 Rc7 Bg8+ Be6 Rg7 Bf5 Qac3 Kb5 c6 Nac5 Qd2 Rb7 c7 Nce6 c8N Rbc7 Nb6 Rc3 Nc4 Rc5 Ne3 R5c4 Bf7 Rg8 h8R Be4 R7g5 Rg6 h7 Bf5 Rg8 Be4 h8Q Nh7 Rg7 Bf5 Bg8 Be4 Qe2 Bf5 Nd2 b1R Qf3 Rbc1 Nb1 b2 Qff4 Rb4 Qc7 Rcc4 Rg2 R1c3 R5g3 Ra4 Qde5 Rh4 Qd4 Rac4 Rh2 Nb4 Qca7 Bc2 Qa3 Nd3 Qa8 N7g5 Qh6 Nh7 Qa5+ Kc6 Na3 b1R Rhg2 Rb2 Rc1 Rg5 Nb1 Rg6 Qaa7 Kb5 Qa3 Bg1 Rd2 Bf2 Qa5+
N1KbNB1r/3R1r1n/B3n2Q/PQQ5/qrbQ2Rp/rN1b1b2/1B6/4k1r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 b5 g4 h5 a4 b3 f4 Kb4 d4 c5 g5 e6 d6 b2 d5 c4 g6 h3 f6 c3 g7 h4 f5 c2 f7 h2 f6 Kb3 d7 b4 d6 Ba6 Na3 Kc3 Qd5 b1R Nf3 b3 Rg1 h1B Qc5+ Bc4 Nd4 b2 Nb3 Bf3 Rg4 Qe8 d8Q Be7 f8B Na6 f7 Nf6 g8N Nh7 d7 Nc7 Qb8 Bd8 Kd6 e5 Nf6 e4 Qbb5 e3 a5 e2 Ra2 e1R Ra1 Qe4 Ne8 Ne6 Ra2 Ra7 Be2 Bb6 d8Q Rg1 Bf1 Bc7+ Kd7 Ra1 Kc8 b1B Qdd7 Bd8 Qdd6 Qe2 Qdb6 Kd3 Bb2 c1R Q6a6 Rd7 Qab6 Rd4 Qbd6 Ke3 Qdd5 Kf2 Qdd7 Qe3 Be2 Rf4 Qdd4 Bbd3 Bf1 Ke1 Be2 Bcd5 Nc4 Rcb1 Nb6 Qe4 Na8 Rf6 Ra4 Ra3 Rc4 Rf5 Rc2 B5c4 Rd2 Qf4 Qdd5 Be7 Na1 Bc2 Bf6 Qh6 Qb8 Qg6 B8g7 Rb7 f8Q Bb5 Bb2 Rf7 Rdd4 Qe4 Nb3 Bd8 Qde5 Rf4 Rd7 Rf7 Bh6 Qc4 Qd4 Qa4 Qfg7 Bf5 Qgf6 Ba6 Bf8 Rb4+ Qb7 Bb5 Qh6 Bc2 Bc4 Bd3 Qa6 Bbc6 Qab6 Bcd5 Ba6 B5c4 Qbb5
Q4NNk/r7/r1R1K1N1/pr2n1Q1/bR1BP1Bn/1RQ1R3/8/qnn1b1nr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 f5 b4 Kf7 d4 Kg7 e4 h5 g4 c5 g5 h3 d6 h2 g6 c4 d5 c3 d7 h4 b6 c2 b5 h3 b7 Qe8 d8Q Rh7 d6 Rh6 d7 Ne7 b6 Nbc6 b8R Ra7 b7 Kh8 Be3 c1N Qd3 Bg7 Qb3 Bc3 Na3 Be1 Ne2 Qg8 Rg1 h1N Nb5 h2 Nbd4 Nf2 Ra3 h1R Ne6 Nh3 Nf8 Qg7 Bd4 Qf6 Qc3 Ne5+ Kg2 Qg7 Qe8 Qf6 d8Q Bd7 Rb3 Bb5 Rc8 Ba4 b8R Rh5 R8b4 Ra6 Bf2 f3+ Kg3 Ra7 Rg2 Ng1 Kf4 Rg5 Bb6 f2 Rg3 Rgh5 Bh3 f1N Be3 Nd2 Bd4 Nb1 Rc6 Rh6 Rf3 Qg7 Kg5 f4 Bg4 Nf5 Re3 f3 Nf4 f2 Qf6 f1R Qa8 Nh4 Qf5 Qb7 Kf6 Qg7+ Ke6 Rh5 Qg5 Ra6 Nd3 Rf7 Nf4 Rfa7 Kd5 Qf6 g7+ Kg8 N8e6+ Kh7 g8N Kh8 Kd6 Rhh7 Kd5 Rhb7 Nf8 Rb8 Ne2 Qf1 Nf4 Rb5+ Kd6 Qf2 Ke6 Qa2 Qb7 Qb2 Qa8 Qa1 N4g6+
6Rb/Q1nnK1RN/1QrQb2p/N1P1n1N1/r2Rb1q1/1n6/n1k3BB/b2Q4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 b4 d5 g4 a5 f4 e5+ f6 h3 c4 h6+ Kg6 d3 Kf7 h2 c5 d4 f5 d2 b6 d3 b5 a4 b7 a3 g5 a2 b6 Na6 b8Q Nc7 g6 Qd4 b7 Ra4 g7 Be6+ Kg6 Qc4 f7 Nf6 g8R Nd7 f6 Bg7 Qc2 d1N f8N Ne3 f7 Ng4 Qd1 d2 Bh3 Kd3 Nf3 e4 Rg1 h1B Nh7 e3 f8Q e2 Bg2 e1N Na3 Nc2 Qa7 Nd4 b8Q Nb3 Nfg5 Bb2 Rb1 a1B Qbb6 Nge5+ Kg7 Qe4 Nc4 Qg4 Qfd6+ Bd4 Na5 Kc3 Qf1 d1N Bf4 Kc2 Bh2 Nc3 Rd1 Na2 Qe1 Bdc3 Rd4 Bcb2 Bf1 Be4 Bg2 Nb8 Kf8 Nbd7+ Ke7 Bc3 Rg7 Rb8 Qba6 Rb6 Rg8 Rc6 Q6b6 Nf7 Rb4 Bh8 Rd4 Nfe5 Qd1+ Kb2 Rf1 Kc3 Rf7 Kb2 Rfg7 Kc3 Qg1 Kc2 Qd1+
NqN1rR1N/6n1/BBr2p2/2Q3Pb/bbb1Bb2/1n1nk3/2Q1n3/3RNQ1K b - - 0 1 illegal: No possible last move, all moves rejected
bBR5/q1Q5/kn1n1pbP/2Nr2rR/1b1R4/2Nr1N1R/B5Qr/1bK2Q1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 b4 d5 c4 Kd7 h4 Kc7 e4 Kb7 e5 a5 c5 a4 e6 g4 h6 f6 h7 g3 b6 f3 e7 d3 e8Q f2 c6+ Ka6 b7 a3 h5 g2 c7 d4 Qee2 a2 Ba3 Nh6 Bb2 Nf7 Qc2 Qe7 Qb3 Nd6 Qc2 Nd7 b8Q Bb7 c8R Nb6 Nf3 g1R Kc1 Rg5 Qbc7 Qf7 Bg2 f1B Nc3 Bc6 Rb1 a1R Rh3 Be4 Bh1 Bg2 Qf1 Bg6 Qd2 Be7 h6 Rd8 h8R Raa5 Re8 Rad5 Ba1 Bf8 Re4 Rb8 Reh4 Qe7 Rh5 Qd7 Qc6 Qa7 Qf4 Rb7 Qg4 Re7 Qc7 Re2 Rb2 Rf2 Rd2 Re2 Ng1 B2e4 Nf3 Rh2 b5+ Ka5 Rd1 d2+ Kb2 d3 Qgg2 Rd4 Kb1 Ba8 Bb2 Rdd5 Ba3 Nf7 Bd6 Be7 Bg3 Bb4 Nd4 Qa6 Qb8 Nd7 b6 Qa7 b7 Rde5 Qgf3 Rde8 Qe1 Ka6 Qg4 Rf8 Bd5 Nb6 Nf3 Rd8 Ba2 Rd4 Qe2 Red5 Bc7 Nd6 Qgg2 Re4 Qef2 Re1 Qe2 Reh1 Qef1 Bf5 Re1 d1B Re4 Bb3 Kc1 Bg6 Rc4 Bc2 Rd4 Ndc4 Bg3 Bb1 Qe5 Qb8 Qe7 Qa7 Bc7 Nd6 b8N+ Kb7 Nd7 d2+ Kb2 d1R Bb8 Rd3 Kc1 Ka6 Qd8 Kb7 Qc7+ Ka6 Nc5+
bRnn2bq/Qrk4P/N5RN/n7/b1B2p2/5rb1/1n1RQRB1/Qb4BK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kg2 d5 e4 Kd7 c4 g5 h4 a5 b4 d3 b6 d2 b7 g4 b5 d4 b6 a4 e5 a3 h6 d3 h7 a2 h5 g3 c5 Nc6 b8Q Bd6 b7 Ra7 h6 Nge7 Nh3 Rf8 Rg1 f3+ Kh1 f2 Bg2 f1B Qe2 d1B h8Q d2 h7 Bc2 Nf2 d1B Na3 Bb1 Nb5 Ba4 Ng4 Rf6 Qg7 Qh8 Be3 Nd8 Nc7 Rf7 Na6 Rf8 Qf3 Bc4 Nh6 Bg8 Qe2 Bc7 Qa8 Bd6 b8R Bb7 Qf6 Nc8 Rd1 Bbd5 Rd2 Rb7 e6+ Kc6 e7 Rf7 Nb4+ Kc7 e8B Bde4 Bb5 Bf3 c6 Bfe4 Bf3 g2+ Kg1 Bg3 Qa7 f4 Qc3 Rd7 Bc4 Rd3 Bf2 Bed5 Be4 Rf3 Qb2 Bd3 Rf1 a1N Qb1 Nb3 Qa1 Na5 Na6+ Kd6 c7 Bb1 Be3 Nb6 Bed3 Kd7 c8R Rc7 Qd1 Ba8 Bf2 Rb7 Rc6 Nc8 Qe1 Qb2 Rg6 Qh8 Nb4 Kc7 Bf5 Bf7 Bh3 Bg8 Bc5 Bh4 Kh2 g1N Kh1 Bg3 Bg2 Ne2 Bg1 Nc3 Qe2 Nd1 Rf2 Nb2 Na6#
B2r1R1N/4rbpN/2b5/1nPRBbK1/2br2nR/3k3N/1b1N1Q2/3QqQr1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 h4 Ke4 b4 a5 c4 f5+ Kh3 d5 h6 d3 b6 a4 e3 f3 h5 a3 b7 f2 b5 d2 b6 d4 h7 d3 h6 a2 Bb2 Ra7 Be5 Nc6 b8R Nf6 Kh4 f4 b7 f3 Bg2 f1B Nh3 Qe8 Kg5 Ba3 c5 Bf5 Rc8 Ng4 b8Q Nd4 Qb2 Rg8 h8N Re7 h7 Nb5 Ng6 Be2 h8N Bf1 Qbc2 Bb2 Nf8 Be2 Rh2 Bf1 Bh1 Bg2 Nh7 f2 Rd8 f1B Rd5 Bf3 Rf2 B3g2 Rf3 Bd7 Rf8 Bf5 Qe2 d1B Qf2 Bde2 Qb3 d2 Qd1 Bgf3 Bg2 Bd4 Bh1 Kd3 e4 B1g2 Bc7 Bef1 e5 B3e4 e6 Be2 Rd7 Bc6 Be5 Bgd5 Rd8 Bb2 Qg2 Rd7 e7 Bf7 Qf2 Rd4 Rd5 Bf1 Na3 Be2 Nc4 Bf1 Rc1 a1R Bf3 Ra7 Qg2 Qa8 e8Q Re7 Qf2 Qa2 Qa8 Qa5 Ra1 Be2 Ra4 Qc3 Qa1 d1R Nd2 Rg1 Qd1 Qb4 Qb7 Bce8 Rd6 Nh2+ Bg2 Rd5 Nb3+ Kc4 Qc6 Bed7 Rd8 Rd2 Rd4+ Kc3 Raa8 Bec4 Rh4+ Rd4 Qe4 Qa5 Qeg4 Rge8 Rac8 Rf8 Ba8 Bc6 Qgg2 Ng4 Rd5 Qb4 Rc7 Rb8 Rc8 Qa5 Rf8 Rd8 Qde2 Qa1 Nd2 Qe1 Qd1 Kd3 Qgf1+
N4bn1/NRBnkPr1/n1B5/1K1Nb2B/Rb1r2b1/Q5b1/1qR2p1N/1Q1n4 b - - 0 1 illegal: No proof kernel
3n2Qr/bp4rN/1n1r2b1/3b2b1/2k3K1/2bB2B1/NRRr1PQ1/N1R2qQN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 h5 a4 c5 d4 e5 g4 e4+ Kf4 b3 f6 b2 g5 e3 d6 Ke6 f7 Kd5 a5 c4 d7 c3 g6 c2 g7 h3 a6 h2 a7 e2 Na3 b1B Ra2 e1B Ne2 h4 Ng3 h3 Bd3 Nc6 Kg4 Bc3 Bf4 c1B Rc2 Bc5 f8N Nge7 Qg1 Rb8 a8R Ba7 Bc7 Bg5 Nh7 Qg8 Rb2 Nd8 Nc2 Qe8 g8Q+ Qf7 Bf5 Kc4 Na1 Nd5 Bf4 Nb6 d5 Be4 d6 Bd5 Qg2 Qf6 Rc1 h1R Bc2 Rf1 Nh1 h2 Bg3 Rd1 Qg6 Rd2 Bd3+ Kd4 Qg8 Qe5 Qg6 Qe1 Qg1 Kc5 Qe4 Rg8 Qeg2 Qf1 Rbc2 Rg7 Rb2 Ne6 d8N Bd7 Rbc2 Be8 d7 Bg6 Nc6 Nd8 Nb4 Rc8 Rb2 Rc6 Na2 Rd6 Rcc2 Nf7 d8Q Kd4 Qg8 Nd8 Bh4 Kc5 Rc8+ Kd4 Ng3 h1R Rc1 Rh3 Nh1 Rh2 Bg3 Rh5 Nf6 Rh8 Rc7 Bb4 R7c2 Bc3 Nh7 Kc5 Be4 Kc4 Bd3+
1K4NQ/rp3r1b/R3bB1N/1B3n2/r2b1kNn/2B1P1br/R1r3R1/4N1qQ b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 a4 f5 d4 c4 h4+ Kg4 h6 g5 d6 c3 a5 c2 h5 b3 a6 b2 d5 f3 a7 f4 d7 f2 d6 f3 h7 Qb6 d8N Bf5 h6 Be6 d7 Qa6 Na3 b1B Nc6 Bb3 d8N Qb6 Nf7 Ne7 Kd6 Nd7 Bd2 c1R Rh2 Be6 Bg2 f1R Nc4 f2 Ra2 Ne5 Nf3 N5g6 Bc3 Qe3 Kc7 Rh1 Rd2 f1R N4e5+ Kf5 Qe1 g4 Ra2 g3 Ng4 Nh4 Qd1 Rg8 h8B Bd3 h7 Rc2 Qc1 Bh6 Bhe5 Bf4 h8Q Rgd8 Qe1 Rd4 Nfh6+ Ke4 Qb1 Rf2 Qf1 Ra4 Ne1+ Rf3 Qf2 Rf1 Qg1 Rf2 Bh1 g2 Qf1 g1B Qg2 Nc8 Ne7 Nd6 Neg8 Rf1 Bd4 Qf2 Be5 Qg3 Qh3 Bd4 Rf2 Qg1 Bg7 Rf8 a8R Bh2 Ra5 Ra8 Ra6 Ra7 Kb8 Bf4 Bg2 Bfe5 Qh1 Bf4 Nf7 Kf5 Be5 Rh3 Nfh6+ Kg5 Bf3 Bg3 Rg2 Bh7 Bc6 Rf7 Bf6+ Kf4 Bb5 Ndf5 e3+
q4n2/p4N1Q/PnQ1N2N/2b2bn1/Qn3R2/1r2B2R/bk2N2K/nBr1B2b b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 Kf2 Ke7 a4 Kf6 d4 h5 g4 b5 Kg2 b4 e4 h3+ Kh2 f3 c6 f2 d6 b3 d5 Ke5 d7 f5 d6 b2 c7 h4 g5 f4 g6 f3 a5 Nf6 g7 Nh7 g8Q Na6 Bg2 Rb8 Ra2 Nb4 Qdb3 Kd4 Nd2 b1B Qa4 Kc3 a6 Qe8 d8B Bf5 d7 Bc5 c8Q Nf8 Rb2 Ba2 e5 Rh6 Be7 Rc6 e6 Rb5 Qb7 Qa8 Nf1 Rbb6 Re2 Rc7 Bd2+ Kb2 Re4 Rcc6 Ne3 Rc8 Ne2 f1N+ Kg1 Rc7 Be1 Nd2 d8N f2+ Kh2 Nb3 Qd5 Na1 Bg5 Rb5 e7 f1N+ Kg1 Nd2 e8N Nc4 Qc6 Rbb7 Kh2 Nb6 Rf4 Rc8 Be4 Rcc7 Kg1 h2+ Kg2 Rb8 Bb1 h3+ Kg3 Rbb7 Ng7 Rb8 Qh7 Rbb7 Rg1 h1N+ Kh2 Ng3 Ng4 Ne4 Rg3 Rb8 Bh6 Ng5 Nge6 Rcc8 Nf7 Rb7 Kh1 h2 Rh3 Rcc7 Kg2 h1B+ Kh2 Be7 Qd7 Rc1 Qc7 Bc5 Qcc6 Ne4 Bg5 Rb8 Ngh6 Rb7 Bgh4 Ng5 Bhf2 Rd7 Bd2 Rd3 Bfe3 Rb3 Be1
2q3Nr/bB1N1rb1/1b1n1Q1B/4K3/2kn1BR1/1RpP1r2/bQ2nRN1/1B4r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 a5 h4 c5 e5+ Kd7 b6 f5 b7 g5 d6 Ke6 b5 Kd5 d7 g3+ Kf3 g2 h5 c4 b6 a4 h6 a3 e6 a2 e7 Ra3+ Qb3 Qc7 e8B Qd8 h7 Qc7 d8B Nh6 Bd3 Bc5 Nh3 g1B Bb2 Nc6 b8R Be6 b7 Bb6 Rh2 Nf7 Rf2 Qc8 Be5 Nd6 Qb2 Kc5 Nc3 g4+ Kg2 f3+ Kg3 Rb3 Kf4 g3 Bb1 g2 Nd5 Nd4 Bg5 Rc3 Bg7 Bf7 Ke5 f4 Ne7 Rc1 Re2 f2 Bc6 f1R B7h6 f3 Nf4 f2 Ng8 Rc3 Re4 Rf3 Re2 Rd1 Bce4 f1N Rf2 Ng3 Bd5 Rf1 Bc6 Bh2 Bce4 g1B Ng2 c3 Bf4 Kc4 Ra8 Qd7 b8N Nge2 Bb7 Qc8 Ra3 Bg3 Nd7 Bh4 Bf8 Be7 B8h6 Bf8 Rb3 Bd5 Bc2 Be6 Rd1 a1R Bb1 Bg7+ Ngf6 Rf8 h8Q Rf7 Qf8 Ra8 Qd8 Qc7 Qe7 Rh8 Qf8 Qc8 Qe7 Bf8 Ng8 Bg7+ Qf6 Re1 Rf1 Be3 Rf2 Rg1 Rc1 Ba7 Rd1 Nc2 Re1 Beb6 Ref1 Ncd4 Re1 Ng3 Re4 Ne2 Be3 Bf8 Rg4 Bg7 Rb5 Bd5 Bef4 Be6 Bh7 Bf5 Rb3 Bb1 Bf5 Ba2 Bh7 Bd8 Bb1 Bdb6 d3+
kb1r1QKn/n2RBrnB/2q4b/8/1PbQ2r1/1nR5/1p1N1R1Q/1r3NBR b - - 0 1 illegal: No proof kernel
2b1k3/n1R1Bn2/qb4R1/1QN1b1r1/PB2nB2/pr2bBQ1/3N2N1/n2KQ1r1 b - - 0 1 illegal: No proof kernel
1b2r2n/1QBqk2n/2N1r1rQ/4bn1Q/p1rB1n2/P1B5/NR1KR1N1/1b4B1 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 Be2 f5 gxf5 Be6 Bf3 Bc8 Bg4 hxg4 c4 e5 f4 b5 h4 a5 d4 g5 h5 a4 a3 e3 d5 b4 d6 e4 d7+ Ke7 h6 e2 c6 g3 c7 g4 h7 g2 c5 b3 c6 b2 Ra2 g3 Kd2 e1N Rh2 Nd3 Nc3 b1R Qh5 Bg7 Nge2 g1B Rg2 Nh6 Rb2 Ne5 Na2 Re8 h8B Ng6 Rf2 Ba6 c8Q g2 c7 Bh2 Qb7 g1N c8Q Bg3 Qcc6 Bd3 Rh2 Qc8 d8N+ Qd7 Rg2 Nh3 f6+ Kf8 f5 Ra6 f7 Nhf4 Qe6 Be5 Nc6 Rb6 Bf6 Nh8 Bd8 Rb4 Bc7 Rc4 Rh2 Ra1 Rf2 Bb1+ Qd6+ Kg7 f8B+ Kg8 f6 Nf5 Bg7 e3+ Kd1 Re6 Bd2 Bh2 Bc3 Re8 Nec1 e2+ Kd2 e1R Ne2 Rg1 Bd4 Rg6 Rg2 Kf7 Bg1 Nd5 Nf4 Re6 Re2 Ke8 Ng2 Nf4 Nd4 Kf7 Qdc6 Ke8 f7+ Ke7 Bf2 Qd8 Be3 Nd7 Bg1 Nf8 Qcb6 Nh7 f8B+ Ke8 Bb4 Qd7 Ba5 Ke7 Q6a6 Bc2 Bc3 Re1 B7a5 Bb8 Bc7 Bb1 Qd6+ Kf7 Nc6 Re8 Rf2 R1e6 Bgd4 Bg3 Re2 Bh2 Na7 Bg3 Qda6 Ke7 Nc6+ Kf8 Qh6+ Ng7 Na5 Nh5 Qbb5 Ke7 Qf5 Be5 Qb7 Nf4 Qfh5 Nf5 Nc6+
1R1R4/Qb1Bk3/R1R1bQ2/Qr1r1P1q/b2b1B1n/1p1nN3/n1r3NK/6nN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 e5 a4 b5 g4 c5 f4 h5 Kf2 c4 Kg2 h3+ Kg3 c3 a5 b3 a6 e4 f6 h2 d6 b2 f5 c2 a7 h4+ Kh3 b4 g5 e3 d5 e2 g6 e1N g7 Nc6 Qd4 Ne5 Na3 b1R Bf4 c1N Nc4 N1f3 Ne2 Ne7 g8R N7g6 Ng3 Na2 Ne3 Nd3 f7+ Kd7 Qb6 Qg5 Qa5 Bg7 f8Q Qh5 Qf6 Ng1+ Kg2 Rb8 a8Q b3 Q8a7+ Bb7 Rc8 Rd8 Rc6 Rc1 Be2 Ke8 Bf3 Rc2+ Be2 Nf2 Bb5 Bc8 Ba4 Be6 Bb5 Ngh3 Rhe1 h1B+ Kh2 Ng1 Re2 Bg2 Nh1 h3 Ree1 Nd3 Rec1 Bf7 d7+ Kf8 d6 Nh4 Ba4 Rb5 Rc8 Bh8 Rb8 Bb7+ Ng2 Rdc8 d8N R8c5 d7 Rd5 Nc6+ Bc8 Qg5 Be6 Ne7 Bd4 d8R+ Kf7 Qh6 Bb7 Qg5 Rd2 Rc6 Rc2 Kg3 h2 Qh6 Rd6 Nd5 Rd7 Nde3 Ke7 Ra6 Rdd5 Rc1 Rb4 Bc6 Rbb5 Bd7 Bc6 Nf2 h1B Kh2 Rb7 Qh8 Ba4 Qh6 Rbb5 Qg6 Re2 Rcc6 Rd2 Ne1 Be4 N1g2 Rc2 Nh1 Re5 Rcc8 Bb7 Rcc6 Red5 Qf6+
8/1r3Bbb/1rR3Bn/p3QbNB/P2br2R/1N1k1Kn1/nQ3RN1/2n1q2R b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 c4 Kf7 f4 Ke6 e4 a5 Ke2 b5 h4 g5 Rh3 d5 a4 b4 f5+ Kf7 h5 b3 f6 Ke6 c6 b2 h6 g2 h7 d4 c7 g3 c5 g4 c6 Bg7 f7 Qe7 f8R Ra7 Qc2 Rb7 Nf3 g1B Nbd2 b1R Ne1 R1b6 Qb2 g2 Nb3 g3 Rf3 Be3 Rf2 d3+ Kf3 d2 Rh4 Bd4 Bd3 Nh6 Rb1 Bd7 c8B Re8 h8N Na6 c7 Nb4 Nf7 Na2 Rc1 Qb4 Ng5+ Ke7 e6 Kd6 e5+ Kd5 e7 g1N+ Kf4 d1B e6 Ne2+ Kf3 g2 Bc2 Kc4 Ra1 Rd8 e8B Qe7 Bb1 Bc2 Bf7 Bh7 Bbg6 Re8 Rd1 Qb4 e7+ Be6 Bh5 Ng3 Bd7 Qd2 Bc6 Qc1 Be4 Qb1 Beg6 g1N+ Kf4 Qa1 Ng2 N1e2+ Kf3 Qc1 Rg1 Qe1 Rgh1 Nec1 c8R+ Rc6 Re4 Kd3 Reh4+ Bf5 Rc7 Rcb6 Rc6 Rd8 e8Q Rd6 Re4 Re6 Reh4 Re4 Qe5
qrbQKQ2/1R2nR1Q/2k2b1p/4P3/3Q4/N1r2BB1/R1Brr1Nb/4nn1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Ke5 f5 g4 h6 e4 h3 d4 h2 b4 a4 b6 a3 d6 a2 d5 c4 g5 c3 b5 c2 g6 f3 b7 f4 b6 f2 g7 f3 Bd3 f1R Na3 f2 Ne2 Qc7 Bf4 c1R Bg3 Ra4 Qc2 Rd4 Nf4 Qd8 Ng2 Nf6 g8B Na6 b8R Nc5 b7 Rfe1 Rf1 Ke8 d7+ Ke7 Be2 h1N Bh7 Rd2 Bf3 Ng8 d6+ Kf7 Qd3 Ree2 Qd4 Qa5 d8Q Rc3 d7 Ne7 Kd6 Qa8 Qc7 Nd3 d8Q Ne1 Qcd7 Bg7 e5 Bf6 Bc2 Rg8 Rb1 a1B Rb2 Rf8 Ra2 Bb2 Nc4 Bc1 Qf5 Re8 Kc7 Rg8 Qh7+ Ke6 Qf8 Rh8 Kd8 Rg8 Na3 Rh8 Rg1 f1N Ke8 Rdd3 Nh4 Bf4 Rg2 Rd1 Rf2 Rdd2 Ng2 Rg8 Bh4 Bh2 Bg3 Qa7 Ra8 Qa6 b8Q Qb7 Ra7 Qa8 Rb7 Rh8 Qda7 Rg8 Bg4+ Kd5 Qd4+ Kc6 Rf3 Bg7 Rf7 Bf6 Bf3+ Re4 Qg7 Be6 Qh7 Rg4 Qbd8 Bc8 Rb8 Rh4 Qf2 Rf4 Bg4 Ree2 Rb1 Rb4 Qfd4 Rb8 Rb7 Qa5 Bh5 Qa8 Bf3+
1Q2r1Rb/n1N1bR2/rb2rBp1/1Qr3nb/5BRN/kB2P3/q6n/B1N1K3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Ke7 h4 Kd6 d4 c5 h5 a5 b6 f5 b5 g3 h6 g2 h7 a4 b7 f3 b6 f4 Nh3 g1B Nf2 a3 Bb2 a2 Rh5 g6 Rh1 c4 Qd3 c3 Qb5 c2 Nd2 Be7 Rh4 Nc6 Nd3 Ra6 Nc1 Nf6 Rg4 Re8 h8B Nh7 Bf6 Na7 b8Q+ Qc7 b7 Ng5 Rb1 a1B Bh3 Bh2 e3 f2+ Kf1 Be6 Nf3 Bd7 Ke2 f1N Nh4 f3+ Ke1 Be5 Bg2 Nh2 Bf1 Bf4 Bc4 Bc8 Bb3 f2+ Ke2 f1R Kd2 Rf2+ Ke1 Bf5 Bc3 Bb2 Ra1 Be5 Ra2 Ba3 Ba1 Bc5 Ra4 Bb6 Rc4 Be6 Rc6+ Kd7 d6 Bc4 d5 Be2 Rcc4+ Qc6 Rgf4 Bh5 Rf5 Rd2 Rg4 Bc3 Qa8 Be5 b8B Rd4 Bc7 Re4 Qb8 Bed4 Bh8 Re5 Rf7 Re6 Be5 Bb2 Bf4 Bh8 Bf6 Bc5 Ba5 Bd4 Bc3 Bb6 Ba1 Bc5 Qa5 Qa4 Qab4 Qa2 Q8b5+ Kd8 d7 Bb6 Qd6 Re5 Qdb4 Kc7 d8R Kb7 d6 Re6 Qf5 Kc6 d7 Re5 Qd6+ Kb5 Qb8 Kb4 Rc8 Re4 d8N Ka3 Ne6 Re5 Nc7 Re4 Ne2 Re6 Qb5 c1R+ Kf2 Rc2 Ke1 Rc5 Nc1 Qg2 Rd8 Qa2 Rg7 Nf7 Rd7 Ng5 Rg8 Bd6 Rh7 Be7 Rf7
knRB2r1/2KRbB2/1Q1Pbn2/1N3R2/1Q1R3b/1p4r1/r2b2N1/N1Q1qr1n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Ke4 c5 f4 Kc7 d4 b5 g4 Kb7 a4 h5 g5 c4 f6 c3 f7 c2 d6 b3 Kd5 b4 d7 b2 g6 h3 a5 e4 g7 h4 f5 h2 f6 e3 a6+ Ka7 Na3 b1N Bc4 b3 Ne2 h3 Nf4 e2 Ng2 e1B Bg5 c1B Nc2 Bh4 Ra4 Bf4 Na1 Qc7 d8Q Bg4 Qc1 Bc5 f8R Ba3 f7 Be7 Rd1 h1R Rd3 h2 Rd2 Nh6 g8R Nf5 Ke6 Rf1 d5 h1R Rd4 Kb6 a7 Kb7 Ra6 Rh3 Rd6 Bd2 Rd7 Rc3 Bf6 Bh3 Rg5 Ng3+ Rf5 Rcf3 Re8 Nh1 f8Q Nc3 d6 Bhe1 Qh6 Nd5 Qf4 Bh4 Qe4 Bh6 Qee1 Rg8 Qb4+ Kc6 Rf8 Rfg3 Re8 Qb7 Qda5 Qc7 Rc8 Bd2 Bg5 Bf8 Bd8 Bfe7 Ke5 Nf6 Bf7+ Rc3 Ke6 Bg4 Qbc5+ Kb7 Qaa3 Rg3 Qab4+ Ka6 Qc6+ Qb6 Qc7 Qa5 Qbc4+ Qb5 Qb4 Be2 Q7c5 Qb7 Ke5 Qf3 Qc7 Qf2 Q7c5 Qe1 Qc7 Nh7 Kd5 Bc4+ Kc5 Nc6 Qcb8 Nf6 Qc7 Bd5 Qcb8 Be6 Qc7 Rb8 a8N Rb6 Qb8 Rb7 Qc7 Nb8 Qc6+ Ka7 Nc7 Rb6 Qcb5 Ra6 Q5a5 Rff3 Nb5+ Ka8 Qc7 Ra5 Kb6 Ra2 Q7c5 Rf2 Kc7 Rf1 Qb6
2bR2Bn/2n1b1Pb/1Q1N4/K1QB2Q1/b1p5/2rr2n1/1B1nNN1r/Rk1q2N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 a5+ Ka4 f5 e4 c5 b4 c4 g4 f3 b6 h3 b7 h4 b5 h2 g5 f4 b6 f2 g6 h3 g7 f3 Nd2 Be7 Bb2 Nh6 Bg2 Na6 b8N f1B b7 f2 Nc6 Nc7 b8Q Nf7 Qb6 Bd3 Qh5 f1N Qg5 Rh4 Qb5 Nh8 e5+ Kd7 e6+ Kd6 Qb6 Bh7 Qa7 Rb8 Rd1 Rb3 Qb6 Bf6 e7 Rc3 e8B Be7 Bf7 Ng3 Bf3 Re4 Ra1 Ree3 Bg8 Red3 Qa7 Na8 Kb5 a4 Rd1 Nc7+ Ka5 a3 Ne4+ Kd7 d6 a2 d5 a1N Nf2 Nb3+ Ka4 Nd2 Qc5 Qf8 Bg2 Qf3 Nd4 Qg4 Ra1 Qd1+ Ka5 Bf6 Nge2 Be7 Re1 h1R Ng1 Rh2 Bf3 Rg2 Nde2 h2 Rf1 h1B Be4 Qc1 Rd1 Rh2 Bf3 Bb7 Bg2 Bc6 Be4 Ba4 Bf3 Bg2 Be4 Bh3 Bf3 Kc8 d7+ Kb7 d8Q Bc8 d6+ Nd5 Qd4 Kc6 d7 Kd6 Qde3 Nc7 Bfd5 Qc2 Qf8 Qb1 Qe6+ Kc5 d8N Qc1 Nf7 Qb1 Nc1 Kd4 Nd6 Qc2 Re1 Qd1 Qeg6 Bd8 Re8 Be7 Nce2+ Kc5 Nb5 Bd6 Qff5 Bf8 Rd8 Be7 Bb7+ Nd5 Ka6 Kb4 Qb6 Kb3 Ka5 Nc7 Qfc5 Kc2 Ba8 Ne6 Bd5 Nc7 Ra3 Kb1 Nd6 Rh3 Ra2 Rh2 Ra1+
1r1r1NB1/R1Bpk3/3qB1bQ/1b1rn3/1n6/1BnN1Q2/RPb3Nb/2K1R1n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 g4 a5 c4 e5 f4 a4 b6 h3 b7 h2 f6 h4 f7+ Ke7 g5 d3 c5 e4 f5 a3 c6 e3+ Ke1 h3 c7 a2 g6 e2 Kd2 e1N g7 Nc6 b8R Ba6 c8B Nf6 g8B Qb6 Na3 Nb4 Rb7 Rb8 Nf3 Qd6 Nh4 Ng4 Qf3 Ne5 Nc2 Bb5 Ng2 Bg7 Rg1 h1B f8N h2 Ra7 Bf6 Kd1 d2 Bb7 Bg5 Bbd5 Bf4 Bb3 Rh5 Qh3 N1f3 Bfc4 Rh8 Rf1 Ng1 Qf3 Rh5 Bce6 Rg5 Rb1 a1R Nce1 Ra5 Nd3 Rg3 Bgf7 Rg8 Ra1 Rh8 Re1 Rg8 Nh7 Rgd8 Bg8 Bg3 Ra2 Bf4 Ne3 Bg2 Nf8 h1B Ra4 Bf1 Ng2 Bh2 Ra3 Ba4 Ra2 Rd5 f6+ Ke8 f7+ Ke7 Nf2 Bfb5 Nd3 Nh3 Ke2 d1N Bf4 Nc3+ Kd2 Ng1 Kc1 Nbc6 Bc4 Bc2 Bb3 Nb4 Be3 Ra8 Bb6 Rac8 Bc7 Rb8 Qh3 Ba6 Qh6 Bb5 Ngf4 Be4 Ng2 Bh7 Ng6+ Kf6 Qh3 Rc5 Qh5 Rd5 f8Q+ Nf7 Qfh6 Ne5 Nf8+ Ke7 Qg4 Bg6 Qf3
7N/3pK3/k3P1Nr/qQQ1B1RB/n3b1r1/NB2bnbQ/r2Q3R/3rn1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 a5 h4 g5 e4 a4 c4 d3 b4 d2 e5 a3 e6 a2 b6 Ke7 h6 Kd6 h5 Kc6 h7 Kb7 b5 Ra6 h6 Nf6 c5 Ng4 Nh3 Bd6 Rh2 Nf2 Bb2 Nd3 Be2 Bc7 Qe1 d1R Qd2 Bd6 Na3 g4+ Kg2 g3 Kf3 g2 Be5 Rg8 h8Q Rg4 h7 Ra8 Qf8 Na6 h8N Bb8 Rc1 a1B Qh6 Rh1 Rg1 Bd4 Bd1 Be3 Bb3 Nab4 Qh5 Nc2 Qh4 Ra4 Qg3 Nb2 c6+ Ka8 c7 Kb7 Qh4 Ra7 Qe7 Na4 Qc5 Ra8 Ng6 Ra6 Ng5 Ra7 Nf7 Ne1+ Ke2 Ra8 Nfh8 f3+ Kd1 f2 Ke2 Nd3 Kf3 f4 Ke4 f1N Kd5 f3 Kd6 f2 Bd4 Qg5 Be5 Qh5 Ke7 Ra5 Qcb4 Ne1 Qc4 Ka8 Qc5 Bb7 c8B Be4 Ba6 Bc7 b7+ Kb8 Qd1 Nd2 Qf3 f1R Qh3 Rf6 Rf1 g1N Rf5 Ndf3 Rg5 Ne2 Qd6 Ka7 Qd2 Kb6 b8Q+ Bb7 Qf8 Be4 Bb7 Neg1 Bc6 Ka7 b6+ Ka6 Ba8 Bb8 b7 Bc7 Qc8 Bb8 Qc5 Bc7 Nh4 Rh6 N4g6 Bb8 Bc3 Bg3 b8Q Rb5 Bad5 Rb7 Bd1 Rb2 B5b3 Ra2 Be5 Rf4 Rg4 Qf5 Rg5 Rg4 Ba1 Qd5 Be5 Qa8 Qbb4 Qa7 Qb8 Qc7 Qbb4 Qa5 Rh5 Nd4 Qb8 Nd3 Nb1 Nge2 Qbb4 Rf4 Bdc2 Re1 Bd1 Ng1 Bg4 Ndf3 Na3 Rd1 Rg5 Nde1 Bh5 Rg4 Qbb5+
b2K1n2/1P3Q1Q/rn4Bq/3b2Nr/1pR2B2/R1bN2kN/Rn1Qnr2/b2N4 b - - 0 1 illegal: No proof kernel
2B2n2/P2Q2pQ/b3Q1R1/1nr1N3/2B1n2N/nr2R1bK/3BN3/b1q1Qrrk b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 h4 Ke5 e4 c5 a4 f5 h6 b5 h7 c4 a5 b3 d3 b2 a6 c3 d6 c2 h5 b4 d7 f3+ Kh3 f4 a7 b3 h6 f2 Ra6 f3 Bd2 c1B Ne2 Bd6 Na3 b1N Qe1 b2 Rg1 Bb7 Rg6 Qg5 d8Q Nd7 Qb6 Ngf6 Qb3 Rhe8 h8Q Reb8 h7 Nc3 Rc6 Nb5 Rc3 b1N Nc4+ Ke6 e5 Kf5 e6 N1a3 d4 Ke4 e7 Bg3 e8B Bb2 d5 Nf8 d6 Ba6 d7 Ba1 d8Q Qf4 Bg2 f1R Qd7 Rg1 Bf1 f2 Ne5 Rb6 Bf7 Rc8 Qbe6 Rc5 Qg8 Qg5 h8N Rb7 Rf3 Qf4 Bg2 f1R Qh7 Qe3 Qee8 Qc3 Bc4 Qc1 Qee6 Nd4 Nhf7 Rb3 Nh6 Ndb5 Nf5 Bd4 Nh4 Bb2 Ba5 Ba1 Rf2+ Ke3 Bb7 Ne4 Rf7 Rb1 Re7 Rb3 Qed1 Kf2 Bd2 Re1 Bc8 Rgf1 Nf4 Kg1 Ne2+ Kh1 Re8 Rg1 Re7 Ref1 Qe1 Rc3 Rf7 Re3 Rf3 Rb3 Re3
1bnr1R1b/prB2B1K/4R1N1/N1n1NP1N/n2q3R/r6B/2Q3r1/Qbb1k3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 d4 c5 f4 h5 Kg6 e5 g4 c4 b6 e3 g5 h3 b7 e2 d6 e1N f5 h2 d5 h4 d7 e4 d6 h3 Nd2 c3 Nb3 e3 Na5 c2 Ne2 Rh7 Ng3 e2 Bf4 c1B Qc2 Nd3 Nh5 Na6 b8N e1B b3 Qb6 d8R Bc3 Nd7 Ndc5 Ne5 Be6 d7 Bd6 Rf8 Bb8 d8Q Na4 Qf6 Rb7 Bg3 Bf7+ Kh7 N6c5 g6 Ne7 g7 Nc8 g8B Qd8 Qh8 Qd4 Ng6 Bc4+ Bf7 Bd3 Bg2 Be4 Re1 h1R Bc7 h2 Bh3 Rg1 Rb1 Bd3 Re6 h1R Ra1 Rg2 Qe5 Kb5 b4 Rf1 Ra3 Rf3 Qe1 B3b2 Rc3 Be4 Rc4 Ra3 Qf1 Bg5 Qa1 Bgc1 Qe2 Bb1 Qc2 Qd7 Rg4 Qd4 Rh4 Bc3 Nb3 Kc4 b5 Kb4 b6 B3b2 Qd1 Kc3 Na5 Ne4 Qb3+ Kd2 Qc2+ Ke1 Be5 Rd7 b7 Nec5 Bc7+ Qe4 Nc4 Bh8 Nce5 Qd4 Bb6 Bd6 b8N Rb7 Nbc6 Bb8 Na5 Ne7 Rc8 Bd6 Rf8 Rd8 Qb3 Nc8 Qc2 Bb8 Bc7
1R1r3B/r1rqQb1Q/4q2B/Q4q2/q3k1B1/Nn1N1N2/RPr2p1n/N5bK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kf6 d4 h5 g4 a5 Kg2 c5 d6 a4 b6 f3+ Kh2 f2 b7 c4 d5 Ke5 d7 f5 d6 h3 g5 f4 g6 c3 g7 a3 Be2 f1Q Be3 h4 Qa4 f3 Qb3 c2 Qd3 c1R Bh6 a2 Na3 Rc7 Qd2 Na6 b8B Raa7 Qa5+ Nc5 Nc2 Qe8 d8Q Nf6 g8Q Be6 d7 Bf7 Qh7 Qe6 Qe7 Qd1 d8N Qd7 Nb7 f2 Qd2 Nb3 Bg4 Bg7 Qdb4 Rd8 Nc5 Bf8 Qa5 Bg7 Re1 a1Q Re2 Qaa4 Na1 Kd4 e5 Qf5 Nd3 Qde6 Rd2 Ke4 Nf3 Bf8 Qd7 Bd6 Qe7 Rc2 Rg1 Bc7 Kh1 h2 Rf1 Qed7 e6 Be5 Kg2 h1R Rdd1 Bh2 Be5 Bg1 Bd4 Nd5 Bh8 Nf6 Rc1 Rh3 Rfd1 Rg3+ Kh1 h3 Rf1 h2 Rfd1 Re2 Rc8 Rc2 Rb8 Rcc7 Rc1 Rh3 Rc6 Rg3 Ra6 Rc2 Bh3 Rg7 Bg4 Rac7 Qd6 Ra7 e7 Rac7 e8N Ra7 Bh5 Ng4 Nc7 Qe6 Nb5 Rac7 Na3 Ra7 Kg2 h1Q+ Kg3 Qad7 Qe7 Qh4+ Kg2 Nh2+ Kh1 Qg4 Nfe5 Qd1 Nf3 Qa4 Nb4 Qdd7 Nd3 Rdc8 Bg4 R8c7 Bg5 Rg8 Bh6 Rd8 Qc3 Be8 Nc4 Qac6 Ra2 Qa4 Qa5 Bf7 Na3
q1QbK3/2rr1Rk1/4b1N1/2N1R1nq/2N5/BQ1QpB2/1P1bNq1R/qbn5 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 a5 Kf4 c5 Kg5 h5 g4 a4 d4 h3 f4 h4 f5 e5+ f6 c4 d6 e3 d7 e2 d5 e1Q b6 a3 d6 h2 b7 c3 Qd3 a2 Be2 h3 Bd2 c2 Bb4 c1B+ Nd2 e4 Bf3 e3 Ba3 Nc6 b8Q Ra7 Nc4 Rc7 Ne2 Nh6 Qbb3 Nd4 Rf1 Kg8 Kg6 h1B g5 Be7 f7+ Kf8 Rf2 Rh7 Rh2 Qf2 Rb1 Bd2 Rf1 Qe8 d8N a1Q Nb7 Bd8 Nc5 Be6 d7 Bg2 Qb8 Nb3 Qc8 Nc1 Qb3 Bf6 d8Q Be7 Qdd3 Bd8 Kh5 Qb5 g6 Kg7 f8R Qb8 Rf5 Qa8 Re5 Bh1 Bg4 Be4 Bf3 Kf6 g7 B4f5 g8N+ Kg7 Qdc3 Bb1 Ne7 Rd7 Ng6 Rc7 Rg2 h2 Qd3 h1Q+ Rh2 Kf6 Rd1 Rhd7 Re1 Nf7 Rf1 Ng5 Kh6 Nf7+ Kh7 Ng5+ Kh8 Bf5 Kg8 Bh3 Kf8 Be6 Ke8 Kg7 Rg2 Qh7 Rh2 Qh5 Bh1 Qe1 Rf6 Qg1 Bf3 Qf2 Rf7+
N3N1b1/1r1B3Q/bq1B1BR1/3R3N/2nr1b1r/p3qkrP/R1bQB1n1/5K2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 d4 Kd6 e4 c5 h3 a5 b6 g5 b7 f5 b5 a4 b6 c4 Qc2 a3 Nf3 g3 Be2 c3 Nh4 f3 Qd3 f4 O-O g4 Nd2 f2+ Kg2 c2 Rg1 Nh6 Bb2 c1R Ng6 Nf5 Ra2 Nc6 b8N Rb1 b7 Ra4 Na6 Bh6 Nc7 Be6 b8B Ne5 Na8+ Qc7 Bc3 Rb7 Kf1 Bg8 Ba1 Nh4 Nc4+ Kd7 d6 Ke6 d7 Qb6 d8R Kf6 d5 Kg5 d6 Rb4 Bf3 g2+ Ke2 g3 d7 Ra4 Nd6 f1B+ Ke1 Rh7 Be2 f3 Nf4 Rh8 Qc2 Rb4 Bb5 Bd3 Qd2 Bc2 Ba6 Ng4 e5 Ne3 e6 f2+ Ke2 Rh7 e7 f1B+ Ke1 Bfd3 e8B Be2 Be5 Rd4 Bb5 Rh8 Bg6 Bec4 Ne8 Bf1 Ba4 Ba6 Bd3 Nc4 Bg7 Nf3+ Ke2 Ne1 Bbe5 Kh4 Bgf6+ Bg5 Rc8 Rh6 Bd6 Rh5 Rc5 Rh7 Rh1 g1R Rd5 g2 Bc6 Kg3 Bb5 Rh4 d8Q Rd7 Qe7 Rb7 Bd7 Bh6 Qh7 Bg5 Ne6+ Bf4 N6g7 Rf1 Rg1 Rf3 Rf1 g1Q Nh5+ Kg2 B3f5 Rfd3 Rf3 Rc3 Re3 Rcd3 Ree5 Rg3 Bd3 Bb1 Rg5 Qe3+ Kd1+ Kf3 Rg6 Qe6 Bb5 Ng2 Bd7 Nge3+ Ke1 Ng2+ Kf1 Bc2 Rh6 Qe5 Rg6 Qe3 Be2+
brRR4/2bnRn1K/Nn2rR2/kNb5/1n1Bp3/3bPqB1/4N3/Q3q1QB b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 f4 Kd7 Kf2 g5 Kf3 e5 Kg4 a5 Kh5 c5 d4 Kc7 b4 Kb6 d6 g4 f5 a4 f6 a3 e3 g3 d7 a2 d5 c4 f7 h2 d6 g2 Bd2 c3 Qb3 c2 Be2 c1N Qc4 Qf6 d8R Nb3 d7 Qf3+ Qg4 Na5 Bc3 Ba6 Na3 Nc4 Rf1 a1N Bd4+ Bc5 f8Q Nh6 Rc8 Nc2 d8R Nd7 Qg7 Nf7 Rf2 h6 Kg6 Re8 Kh7 h5 Bd3 h4 Be4 h3 Ne2 g1B Qg2 Qg3 Rf6+ Re6 Bc6 Bf2 Qg1 Qf3 Qa1 Rb8 Qgg1 Bg3 Bd5 Bb7 Be4 Ba8 Bd5 Ka7 b6+ Ka6 b5+ Ka5 b7 Ncb6 Bc6 Nb4 Be4 Na4 b6 Bf4 Nb5 Bg3 Qgc1 Bf4 Rg1 h1Q Rg7 h2 Bd5 Qg1 Bc6 Qgf2 Qg1 h1B Be4 Qe1 Bd5 Nh6 Re7 Nf7 Be4 Bg2 Bc6 Bf1 Be4 Qg4 Bh1 e4 Rc6 Rc8 b8B Qf3 b7 Bg3 Bd6 Rb8 Rcc8 Bf4 Nec3 Bc4 Ne2 Bh2 Bg3 Bd3 Bh4 Bhd6 Bg3 Bc7 Bde5 Bd4 Rh8 Ba7 Bd4 Bab6 Rcf8 Re8 b8N Bc5 Na6 Rb8 Rc8 Qef1 Qc1 Qe1 Rhd8 Nab6 Qa1+
1rR5/1n2N1Bb/6B1/q2Nb1pR/1nK3k1/1r2N1qq/2Q1P2b/b2QBqRR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 b4 c5 d4 g5 Kd2 f5 Kc3 a5 h5 c4 h6 g3 b6 a4 h7 g2 b7 a3 b5 a2 d6 Ke6 b6 f3 d7 f4 d5+ Kf5 d6 f2 Be3 f3 Nd2 Nf6 Nh3 g1B Qc2+ Kg4 Bg2 f1Q Bf2 Bh2 Nf4 Nc6 b8B Ne8 b7 Nb4 Nd5 Qa5 d8R Bf5 d7 Bg7+ Be5 Nd6 b8N Nb7 Nc6 Rb8 Be1 f2 Be4 Qh3+ Kd4 f1Q Nce7 c3 Kc4 Qg3 Rc8 Qfh3 d8Q Bg6 Rc1 a1B Nf1 Bf6 Bd4 Be5 Bd3 Rg8 h8R Bh7 Bg6 Rf8 Qd7+ Rf5 Qda4 Rf3 Qd1 c2 Nfe3+ Kh4 Rb1 c1Q+ Qac2 Bf4 Nf1 Rb3 Nfe3 Bd6 Bg7 Bde5 Ng2+ Kg4 Rg1 Bg8 Rh5 Bh7 Rh1 Qce3 Rc1 Qef3 Rb1 Qf1 Rg1 Qhh4 Nge3+ Kh3+ Qd4 Ra8 Bf2 Qfg2 Rgc1 Rb8 Rh1 Q2f3 Rbg1 Qff4 Ng2 Kg4 Be1 Qhh3 Be4 Qgh4 Qdd1 Qf1 Bg6 Q4g3 Nge3+
QR3Rrq/B2b3r/1q1NNb2/1n1q2pP/5kbb/5N2/R2R2Bq/nK1Q2Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Ke7 d4 Kf6 Kd2 Kg5 Kc2 a5 b4 c5 d6 f5 b6 g3 b5 c4 b7 g2 d5 c3 b6 a4 d7 a3 e5 a2 d6 Nf6 e6 Ng4 e7 Ne3+ Kb3 f3 e8Q f2 h3 f4 Ba6 f1B Nd2 c2 Kb2 f3 h4+ Kf4 Be2 f2 Qh5 Rh7 Ne4 Be7 Bc4 Nc6 b8Q Na7 b7 Be2 Bd5 Nb5 Rh2 Bg4 Qa7 g5 Qe8 f1Q h5 Qf3 Qh8 Qa5 d8R Bcf5 d7 Qa6 Bd2 c1B+ Kb3 Bb2 Nd6 Bd4 Rc8 Qe4 d8N Bd7 Qg8 Bb6 Kb2 Rb8 Be1 Nc2 Bf2 Qe6 Bf3 Qd5 Be4 Ba5 Qb6 Be1 Ne6+ Ke5 Be3 Bh4 Qf8 Qa5 Qa7 Qad2 Qa8 Qf2 Ba7 Qb6 Re8 Rc8 b8R Rd8 Qff1 Rc8 Ne2 g1Q N2d4 Qg3 Rf2 Qh2 Rd2 Bd8 Qg1 Be7 Nc5 Kf4 Bg2 Rd8 Nf3 Rc8 Rb1 a1Q+ Kc1 Qh8 Ra1 Bd8 Ra2 Na1 Kb1 Bf6 Ne6+ Kg3 Re7 Rf8 Ree8 Rg8 Nc5 Kf4 Rec8 Qa6 Rf8 Qb6 Ne6+
2n2RNr/Qq1n2R1/NBb5/4P3/nK1pQ1rq/1n2B2k/B2QQ1R1/b1qq4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kf6 e4 Kg5 c4 Kh4 c5 a5 c6 g5 h6 f5 c7 d5 b6 g4 b5 f3 b7 f2 b6 g3 e5 g2 h7 f4 Ra2 d3 Kc3 d2 Bc4 f1N Nf3+ Kg4 h4 g1Q h5 a4 h6 a3 Ne1+ f3 Nd3 Bf5 c8R Qe3 Qe2 d1Q Rg1+ Kh3 Nd2 f2 Rg7 Qf3 Ne4 Nd2 Nf6 Nb3 Be3 f1Q Nc5 d4+ Kb4 Nd7 b8B Qb7 Ba7 Ne7 Na6 Nbc5 Ng8 Na4 Rc2 Qfh1 Ba2 Be4 Rb8 Bc6 Rc8 Qbc7 b7 Qf3 Rb8 Nc8+ Bc5 Ra7 Ra8 Qff1 b8Q Qh4 Qb7 Be7 Qb8 Bg5 Bb6 Qb7 Qd2 Qc1 Qc7 Qfd1 Rb2 Nd6 Rf8 Nc8 Qb8 Ra8 Qa7 Bf4 Qd3 Bg3 Rg2 Be1+ Qd2 Rb8 Nf6 Rg8 h8Q Ra8 h7 Rb8 Re7 Rg4 Ng8 Ra8 Qf6 Rb8 h8Q Ra8 Bb1 a2 Qh7 a1N Rg7 Nb3 Qff5 Rb8 Qc2 Ra8 Qhe4 Rb8 Kc4 Ra8 Qe2 Bc3 Qcd2 Ba1+ Kb4 Nd6 Rf6 Re8 Ba2 Nc8 Ne7 Rg8 Rf8 Rh8 Ng8
1r4k1/7q/1BbNK1nr/R2P1nq1/1Q3prQ/1BQR2N1/3nQr2/N2n2bR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 Kf7 e4 c5 d4 c4 g4 a4 b4 a3 d6 a2 g5 h3 d5 h4 b6 h2 b7 c3 d7 f3 b5 c2 b6 f4 Be3 c1N Ne2 f2 Ng3 h3 Qe2 Nh6 g6+ Kg8 g7 Nb3 Na3 Nf5 Ke6 Bc5 e5 Nc6 b8Q Nd2 b7 Nce7 Nc2 Ng6 Qc7 Qg5 b8Q Rh6 Qb4 Rb8 Qca5 Ba7 Bb6 Bb7 Qc3 Ba8 Qab4 Bc6 Rd1 a1R d8Q+ Kh7 Qf6 Kg8 Qfe7 Ra2 Na1 Rh4 Qf6 Rg4 Qfe7 Nb3 Rd3 Nd2 Bg2 f1N Be4 N1e3 Qd8+ Kh7 g8R Nd1 Rf8 Kg7 Qf6+ Kh7 Rf7+ Kg8 Re7 Qh6 Qh4 Qg5 Rc7 Be8 Rc5 Bc6 Ra5 Rb2 Rf1 h1R Re1 Rh2 Rh1 Rf2 Rd4 h2 Bc2 Ra2 Bb3 Ra4 Re1 h1Q Rd3 Qe4 Rh1 Ra2 Rc5 Ra6 Ra5 Nd4+ Kd6 Qef5 e6 Qf7 e7 Qh7 e8N Nf5+ Ke6 Rf3 Be3 Ne5 Bc5 Bb7+ Bd6 Bb6 Bc7 Bg1+ Nd6 Rf2 Bd8 Nc6 Nc4 Nce7+ Kd7 Rh6 Nd6 Ng6+ Ke6 Bc6 Bb6
KR3nq1/1QBrRrBR/krb5/1Np4R/2QqnPq1/1Q5r/2B1q3/4bN2 b - - 0 1 illegal: No possible last move, all moves rejected
N2bN3/2B3rR/3B1rqb/qp5R/q2nQ1bP/3KQQ1R/k2n2q1/3b2RB b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 f4 Kd6 h4 Kc5 d4+ Kc4 a4 c5 f6 b5 a5 e5 f5 g5 f7 g3 a6 e4 a7 e3 d6 g4 d5 g2 d7 g3 f6 b3 d6 b2 Qe1 Kb3 Na3 b1B Rh3 c4 Bb2 c3 Nf3 g1Q Nc4 c2 Nb6 c1B Nh2 g2 Ba3 Bh6 f8R Bc2 f7 Rh7 Ng4 Rg7 Nf6 Bd1+ Kd3 e2 Ne8 Nf6 Rh8 Nc6 f8Q Nd4 Rh7 Ne4 Qf3 Nd2 Bb4 Qe7 d8B Bg4 d7 Bb2 Qef2 e1Q Bd6 Qg5 Rc1 Qf4 B8c7 Ka2 d8R Qgh2 Rd7 g1Q Q2e3 Qhg2 Qfe4 Rb8 Na8 Rb6 Rc5 Bc3 Rh5 Ba5 Be2 Ra6 Bf3 Rb6 Re7 Ra6 Re6 Rc6 Rg6 Bb6 Be5 Rf6 Bcd6 Bd8 Bc7 N2b3 Bed6 Qa5 Rgg5 Nd2 Rg6 Q2f2 Bh1 Q2f3 Nb6 Qgg2 a8Q Qg5 Qab7 Qff4 Na8 Qgf5 Rgg5 Qg6 Qc6 Nf5 Q4f3 Qfa4 Qce4 Nd4 Rc5 Bf4 Rc1 Bh6 Rb1 Bb3 Re1 Bd1 Rg1
4n3/BN1B2Rr/n4q2/pKNPQ2n/R1B1Q2k/1B1r1b1r/3N1qr1/n1Q1b3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 Ke2 Kg5 Kd3 a5 Kc4 f5 g4 h5 d4 c5 e5 h3 d6 h4 b6 h2 d7 h3 e6 Kh4 g5 f3 e7 f2 e8B f4 b7 f3 b5 Nf6 g6 Rg8 b6 Na6 b8Q Bb7 Be2 f1N g7 f2 Nc3 Bf3 b7 Ng3 Be3 f1Q Ne4 Ngh5 Qe5 Qf2 Kb5 c4 b8Q c3 Bc4 c2 Ra4 c1N Qb7 Bb4 Nc5 Nb3 Qc1 Be1 Qbd5 Qe7 d8N Na1 Ndb7 Rd8 Bd7 Ne8 Qde6 Qf6 Qe7 Rh8 g8B Rh7 Bb3 Rg7 Bge6 Rg2 Bec4 Rc8 d5 Rc6 Qb8 Re6 Bd4 Re3 Qbe5 Rd3 Ne4 Rg4 Ba7 Rg2 Nec5 Nb8 Ne2 Na6 Rg1 h1R Ng3 h2 Nf1 Rg3 Ne6 Rh3 Rg2 Rg1 Nec5 h1R Nd2 R1h2 Rg8 Rg7 Q7e6 Rh7 Rg7 Rg2 Q6f5 Qf1 Qg6 Qf2 Qge4+
1b3B1B/R1bQn1NQ/2bqbK1P/r5np/1B4Rk/q7/2N1Rn1n/4r1NB b - - 0 1 illegal: No proof kernel
kBK2n2/1B2r1Bq/b1Rb2Rp/P5bN/q6r/RB1Q1N1n/2Q2rQb/r7 b - - 0 1 illegal: No possible last move
K1bb1kQB/6N1/Q4P2/2n3Nn/1R6/q2Bqp1r/Rbr4b/N1N1qBqQ b - - 0 1 illegal: No proof kernel
Nr1RNbb1/N3Q1r1/1bn1Pq1n/2BnNR2/2p5/8/nR1q1Q1K/1b1kBB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kc5 d4+ Kb4 e4 c5 g5 f5 e5 h5 b3 a5 b6 f3+ Kh2 f4 d6 a4 g6 f2 g7 a3 d7 c4 b7 a2 d5 h3 d6 f3 Bb2 h4 Qe2 Ra7 Bd4 Nh6 g8N Nc6 b8B Qa5 d8R Be6 Nc3 Rg7 Rd1 a1B Nf6 Bg8 e6 Qg5 d7 Qd2 Bg3 Ka3 b4 Kb3 b5 Kc2 Bg2 f1Q b6 f2 Nb5 Bb2 Be3 Bd4 b7 Ba7 Ra1 Bb6 Ra5 Qa1 Ne8 Qf6 Nf3 f1N+ Kg1 Kc1 Bc5 Ne3 b8N Nd5 Qf2 Kd1 Bf1 h2+ Kg2 Nd4 Rg1 h1B+ Kh2 h3 Na6 Nc6 Ne5 Be4 Na7 Beh7 Nac7 Bb1 Kh1 h2 Na8 Nb8 Kg2 h1N Kh2 Nc6 Bh4 Ng3 Rg2 Ne2 Rb5 Qf5 Rg5 Qf3 Rb2 Qf6 Rf5 Nc1 Qg2 Bd3 Be1 Na2 Qf2 Bc2 Rc8 Bb1 d8Q Rb7 Rb8 Rhh7 Rc8 Rhg7 Qe7 Rb8 Rd8
1R3rNB/R2BBN1k/K2Ppq1Q/3q1b1N/4Q3/bqr2q2/5r1r/2nn1B1R b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 g4 Kg7 b4 a5 d4 h5 f4 c5 b6 e3 Kd3 a4 Kc4 a3 Kb5 h3 d6 a2 g5 c4 d7 c3 g6 h2 f5 h4 b7 h3 d5 e2 Qd3 e1Q Bb2 Rh6 Ne2 Qg3 Nf4 Nc6 b8Q Nf6 Qe4 c2 Qb6 c1R Nd2 Ne5 Nh5+ Kg8 g7 Qb3 Qc6 Nfg4 f6 Nf2 Qa6 Rg6 f7+ Kh7 Qd6 Ned3 g8B+ Kh6 Qc6 Nd1 Bh8 Rc3 Bh7 Rf6 Bf5 Nc1 Qd6 Qc7 d8N Qcc4+ Kb6 Qe2 b5 Qf3 Be6 Rf5 Bd7+ Kh7 Qf6 Rb8+ Ka5 Ra8+ Qa6 Rb8 b6 Ra8 b7 Rb8 Rg1 h1R Qae6 Rh2 Rh1 Rg2 Ka6 h2 Nc6 Rf2 Nc4 Rb2 N4e5 Rbc2 Rg1 h1Q Qf6 Rh2 d6 Bh6 f8B Be3 Rg4 Bc5 Rg1 Ba3 Nf7 Qhg2 Qg5 Qd2 Rh1 Qdd5 Be8 Be6 Bd7 Rd8 b8R Re8 Rb1 a1Q Ra8 Qab2 Ra7 Qbf2 Qgf4 Qfd4 Qh4 Qf6 Qh3 Qa2 Rb8 Qab3 Qa4 Rf4 Qe4+ Bf5 Qh4 e6 Ne7 Rec8 Ng8 Rd8 Be7 Rf8 Rab7 Qg2 Ra7 Rf2 Qg5 Qf3 Qh6+
BN1b1Bq1/b1nKRQ2/k1p1Q1b1/2QR4/b3r3/B2q3n/1PR3NB/r3q2q b - - 0 1 illegal: No possible last move, all moves rejected
bB2R3/5r1P/1k1bq1pN/2nb2R1/b1B2Q2/KNq1qrRQ/2q2nB1/R4Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 c5 Kc2 Kc7 Kb3 a5 h4 f5 e4 g3 d6+ Kb6 d5 f3 d7 f2 e5 f4 d6 a4+ Ka3 g2 b4 f3 e6 c4 e7 g6 e8B c3 h5 c2 h6 Qc7 d8R Qc5 d7 Bb7 h7 Qe5 Bc4 f1B Ne2 g1Q Rh3 f2 Nd4 Bfg2 Nd2 f1B Rg3 Qge3+ N2b3 Na6 Nf5 Nc5 Nh6 Bgd5 Rg5 Bh3 Qf1 Nf6 Rb8 Qe7 d8R Nfe4 Bc6 Qe6 Re8 Ra7 Bb2 Bg4 Be5 Nf2 Rbd8 Bd1 Bb8 Ba8 Rg3 B5f3 Rd5 Bd6 Rdg5 Rf7 Qh3 Bh1 Bg2 Bd5 Ka2 Rhf8 Ka3 Kb7 b6 c1Q+ Ka2 Rf3 b5 Qc2+ Ka3 R8f7 Re7+ Kc8 b7+ Kd8 Re8+ Kd7 Kb4 a3 b6 a2 Ka3 Kc6 Bc7 Qg4 b8Q Qge6 Qd8 Kb7 Qf6 Kc6 Qf4 Kb7 Bb8 Kc6 b7 Kb6 Rb1 a1Q+ Kb4 Qac3+ Ka3 Bc6 Ra1 Ba4 Qd4 Be2 Qd1 Bd3 Qg1 Be4 Qf1 Bd5 Ba7+ Kc7 b8Q+ Kc6 Qb4 Kc7 Bb8+ Kc6 Bb5+ Kb6 Qf4 Ba8 R3g4 Rg3 Bd5 Bg2 Bd3 Be4 B5c4 Bec6 Be4 Bd5 Bg2 Rf3 Rg3
q1qQb3/QR1Q3p/1bBRnQ1K/2B2r2/kPq4b/6NN/b3r2R/1q3Nn1 b - - 0 1 illegal: No possible last move
3Q2bR/1R2q2p/1b1r2Q1/1PBn1QB1/R2N3B/K2N1q2/1r1qb1B1/nk2b1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kd6 Kc3 f5 Kb3 c5 g4 a5 e4 h3 g5 a4+ Ka2 f3 b4 f4 b6 a3 b5 c4 b7 f2 g6 f3 g7 h2 Bg5 c3 Bh4 c2 Bd3 f1B Ne2 c1Q Nf4 f2 Qh5 Ne7 g8R Na6 Nd2 Be6 Nb3 Be2 Rd1 h1Q Qf5 f1Q b8B+ Qcc7 Rdc1 Qff3 Ba7 Qg1 Bc2 Qdd7 Nd3 Nc5 Rd1 Bg7 Rb8 Be5 Rb7 Bg3 Rf1 Be1 Bg5 Qdd8 e5+ Kd7 d6 Nd5 Rf2 Rg8 Bh4 Rg6 Rg2 Rh6 Rg8 Qdg5 Rgb8 Qd2 Rh8 Rd8 Bg5 Rh2 Bb6 Na6 Bc5 Nab4+ Kb1 a2+ Kb2 Rg2 Ka3 Rh2 Qg6 Bg8 e6+ Kc8 e7 Kd7 Qh5 Ke6 e8Q+ Qe7 d7 Kf5 Bd1 Ke4 Qeg6+ Qf5 Bh4 Ke3 Bc2 Qf3 Qhf5 Rg2 Nb2 Rf2 Be4 Rh2 Nd3 Rg2 Rc1 a1B Rc4 Nc2+ Ka2 Nc7 d5+ Bd4 d6 Na1+ Ka3 Nd5 Ra4 Rf2 Ba7 Bb6 Nd4 Rc8 d8Q Rc6 Nc5 Rg2 d7 Rd6 Nd3 Qa5 Qb8 Kd2 d8B Kd1 Qbc8 Qd2 Qa8 Bc7 Bc5 Bb6 Nb3 Kc2 Nd4+ Kb1 Qac8 Qf7 Bdg5 Qe7 Qd8 Qff2 Qff7 Bh5 Qd7 Qde3 Ra5 Qff6 Ra8 Rb2 Qd8 Qd2 Ra4 Be2 Bg2 Qf3 Qff5
4R1K1/2Nr1p1n/1rN3B1/2nQr1n1/7P/3R2NQ/1krnB1bB/b1NQq2q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 h4 Ke5 e4 Kd4 b6 g5 b7 c5 b5 a5 d6 g3+ Kf3 a4 b6 c4 e5 g2 e6 a3 Kg4 c3 Kf5 f3 d7 a2 e7 g4 e8B c2 Nc3 f2 Be2 f1N Rh3 g3 Ne4 Na6 b8N Bh6 b7 Nc5 Na6 Qa5 b8N Bg7 Nc7 Bb7 d8Q+ Bd5 d3 Ra6 Bc6 Nd2 Qd7 Nf6 Ba8 Re8 Nc6+ Ke3 d4 Nh7 Rb1 a1Q Rb8 Rb6 Bb7 Re6 Re8 Q5c3 Ba3 c1R Bba6 Rd6 Bad3 Rc2 Qc8 Rd7 Bc1 Bb3 d5 Qb4 d6 Bd5 Bb2 Qa8 Bc1 Ba1 Bb2 Qba5 Be5 Qb7 Nf3 g1R Nfd4 Qba8 Nb3 Re1 Nc1 Qb7 Nf2 Bf3 Ne4 g2 Ng3 g1N Be4 Bg2 B4d3 Re7 d7 Ngf3 d8Q Nfg5 Qd5 Rd7 Be4 Nf8 Kf6 Nfh7+ Kg7 Qb4 Kg8 Qc3 Bd6 Qe5 Qb3+ Qc3 Nb4 Kd4 Bg6 Qe3 Qe6 Kc3 Qd5 Kb2 Nc6 Qc3 Ne4 Qa8 Bh2 Qca5 Ng3 Qb4 Bf1 Re5 Be2 Qe4 Bc4 Qe1 Be2 Qb7 Qd3 Rdd5 Nh5 Qa6 Bg4 Rd8 Qd5 Qae2 Rd3 Q2f1 Ng3 Qh1 Be2 Rd6 Qf5 Rd7 Qh3
1B2rnb1/1B2Pp1q/1n4N1/N1Q1n1R1/4b1b1/N2kB1r1/Rnq1Q3/Q1Q2Kb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 h5 g4 c5 b6 a5 b7 c4 g5 c3 g6 f3 g7 h3 b5 h2 b6 c2 Bb2 c1N Ra3 h4 Qd3 f2+ Kd1 h3 Nf3 a4 Rg1 h1Q Rg5 h2 Ne5 Nc6 b8N Nge7 g8Q Qc7 b7 Bg4+ Qe2 Nd3 Ng6 Nc8 Qg7 Nb6 Ra2 a3 Bc1 Rh3 Be3 Nce5 Nc6 Re8 b8B Rg3 Na5 Nb2+ Kd2 Be7 Bg2 f1B Ke1 Bf8 Qc2 Be7 Qc1 Bd3+ Kf2 Qd1 Bf3 Qc2+ Ke1 h1B Qf6+ Kd7 d6 Q7c5 Qh8 Ke6 d7 Qc8 d8Q Bc5 Qc7 Qd7 Ra1 a2 Na3 Qd6 Qa7 Qf8 Qc7 Qg7 d5+ Kf6 Qh5 Qh7 d6 Ke6 d7 Bd4 Bd2 Bg1 d8Q Bg2 Be3 Bh1 Rb1 a1N Qc5 Nb3 Ra1 Nd4 Ra2 Bg2 Qdc7 Kf6 Q7d6+ Ne6 Qdd4 Nf8 Qh2 Bh1 Qe2 Qh2 Nf4 Nd1 Qda1 Nb2 Bg2 Nc6 Nh5+ Ke6 e5 Bh7 Qc3 Bg8 Qc5 Qh3 Kf1 Qh4 Rg7 Kf5 e6+ Ne5 Nf4 Qh7 Bb7 Bc6 e7 Ke4 Rg5 Bd5 Qh2 Bc6 Ng6 Kd3 Qf2 Be4 Qe2+
1q1r1RbN/3BpQNn/6PB/2B2r1q/4n2Q/1n1q3N/qkQ1nR2/bB5K b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 b4 Kf6 g4 Ke5 f4+ Ke4 Kf2 d5 Kg2 a5 g5 h5 g6 a4 c5 d3 f6 Kd4 f5 d2 f7 a3 c6 a2 f6 Be6 c7 Nd7 c8B Nc5 b6 Bg7 f8Q Ra5 b5 Nb3 f7 Nf6 b7 Nh7 Rh2 h3+ Kh1 h4 Na3 Kc3 b8Q d4 b6 d3 b7 Rf5 Rf2 h2 Qg3 Qb6 Rb1 a1Q b8B Qa2 Bd6 Qb8 Bc5 Be5 Qg7 Rd8 f8N Bg8 Bd7 Bf6 Qe2 d1Q Bh6 Qdc2 Rc1 Kb2 Nb5 d2 Nh3 d1N Ne6 Nc3 Nd6 Ne4 Qf7 Bg7 Qd1 Bd4 Be2 Qd3 Ng7 Bf6 Rc4 Bd4 Ra4 Bf6 Ra8 Be5 Kg2 h1N Qh2 Nhg3 Qc2+ Ka1 Bf3 Ne2 Kh1 Bb2 Qfc4 Bd4 Nf7 Bb2 Nh8 Be5 Nf4 h3 Qf7 Bf6 Qg3 h2 Qh4 Bc3 Qd2 Kb1 Nh3 Ba1 Qd1+ Kb2 Bg2 Neg5 Bb7 Ne4 Ba6 Qd4 Bd3 Qc3 Bc2 Qd3 Bb1 Qd5 Qhf6+ Qbe5 Ng5 Qd3 Kg2 Rc8 Rb8 Rc7 Rf8 Rc8 Nf3 Rd8 Ng1 Rf3 Qf4 Qh5 Qh4 h1Q+ Kf1 Qh2 Nh3 Q2e5 Kg2 Rf5 Kh1 Qb8 Qc2+
3B3Q/1Pb2q2/bn1R1N1r/NkBn1nRr/7R/3n4/KNp2q1N/1QrB2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 g4 c5 e4 f3 d6 a4+ Ka2 a3 b4 c4 e5 f4 d5 f2 g5 f3 b6 h3 b5 h4 b7 c3 g6 h2 b6 h3 g7 c2 Qe1 Qh4 Be2 f1R Nc3 f2 Nd1 Ra5 Nb2 Ne7 g8Q Rh6 Nf3 Rg1 Be3 f1Q Bd1 Qhf2 Bc5 Bg7 Qh8 Bf6 Kb3 a2 Rc1 Rb5+ Ka3 a1N Ka2 Nb3 Ra1 Nd4 Qb4 Nbc6 b8R Ba6 b7 Bg5 Rg8 Bf4 Rg5 Ndf5 Rc1 Na5 Qb3 Ng8 Rb1 Nc4 e6+ Kd8 d7 Kc7 d8N Nge7 Nc6 Nb6 Na5 Bd6 Nac4 Bf4 d6+ Kc6 d7 Bc7 d8B Ned5 e7 Ra5+ Ba3 Rc5 Bb4 Kb5 Na5 Qc4 e8N Qf4 Ne5 Q4f3 Nf6 Qh5 Bg4 Qf7 Nf3 Rc1 Rd1 h1R Nh2 Rg1 Rd4 Qh5 Bd1 Qf7 Nf3 h2 Rh4 h1N Nh2 Qg3 Ra1 Nf2 Rb1 Nd3 Ra1 Rc4 Bc5+ Rb4 Na4 Qf4 Qb1 Qf2 Nb2 Ra4+ Kb3 Rag4 Ra4 R4g3 Ka2 Rh3 Rae4 Rh5 Re6 Rh6 Rd6 Rh5 Rhg4 Rh6 Rf4 R3h5 Rh4
1n4nK/kB1qr3/Rbq3R1/1Qp2rn1/2P1q3/1n2n1r1/2QBN3/N2Q1RRB b - - 0 1 illegal: No possible last move, all moves rejected
K2N2B1/1R1pR1q1/2NPn1b1/nn4n1/Rn4r1/4nr2/1B1Q1r1Q/1k1N1nQQ b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 a5 e4 c5+ Kc4 Ke5 g4 h5 b7 h3 b6 f3 Kb5 Kd4 d3 c4 g5 f4 g6 f2 g7 h2 e5 c3 e6 f3 e7 h4 e8N c2 Nd2 Kc3 d4 h3 d5 a4 d6 a3 Rb1 a2 Bc4 a1N Bf1 Nh6 g8Q Qg5+ Qd5 Rg8 Bc4 f1N Nb3 f2 Ng7 Nf7 Nd4 Ra3 Nc6 Na6 b8R Nd8 b7 Nb3 Kb6 Nc7 b5 Nde6 Ra8 Na5 Ka7 Ne3 b8Q f1N b6 Ba6 b7 Qg6 Bb3 Bd3 Q1f3 Ra2 Bb2+ Kd2 Qe5 c1N Ne2 Qg1 Qeg3 Bg6 Nc3 Nd3 Nd1 Nb4 Qc8 Ra3 b8Q Rf8 Ba2 Kc2 Qb6 Nb5+ Kb8 Rf4 Ra6 Rg4 Ka8 Rd3 Qg8 Rd2 Qd4 Rf2 Ra7 Qg2 Rg1 h1N Qh2 Nhg3 Rb7 Nc3 Ra1 Nge4 Qd5 Qg3 Qfh1 Nb5 Bc4 N4g5 Ra4 Qe5 Qd2+ Kb1 Rg3 Qd4 Rf3 Qc3 Rf7 Qe5 Re7 Qg3 Q2g1 h2 Qh8 Qe5 Ne8 Qg7 Nc7 Nf4 Bg8 Nfe6 Qhg2 h1R Q2h2 Ned4 Ne6 Rf3 Qhf2 Rh2 Ned8 Nde6 Qfg3 Re2 Qhh1 Ref2 Q3h2
nQ3N1B/p1q2BRn/K1Q3N1/P2n2q1/1rNR4/B3R3/b3k1Nb/n3qnn1 b - - 0 1 legal: proof: g4 d5 h4 f5 b4 fxg4 e4 c5 bxc5 dxe4 Na3 b5 Qe2 g5 Qd3 g3 Qe2 g4 Nb1 Na6 Qf3 Rb8 Qd1 Rb6 Bh3 Rg6 Bf1 Rg5 hxg5 Bd7 Bd3 Be6 Bf1 Bc8 Ke2 Kd7 d4 Kc6 a4 Kd5 f4 Kc4 c6 e5 g6 h5 f5 h4 a5 e3 g7 e4 f6 g2 f7 g3 d5 h3 c7 b4 d6 h2 d7 b3 Nd2+ Kc3 Nc4 b2 Nh3 g1Q Qd5 b1N Qc6 g2 Ra4 Rh4 Ba3 Bd6 f8N Nf6 g8R Nh7 Nf4 Kd4 Rg7 Nc3+ Ke1 e2 Kd2 Bb7 c8Q e1N Qb8 Qc7 d8B Nd5 Bf6+ Be5 Bd3 e3+ Ke2 Bc8 Bg6 Be6 Bf7 Ke4 c3 Nc2 Rb4 Qc1 Re1 h1N Ra4 Na1 Rb4 Kf5 Kd3 g1N Ng2 e2 Ra4 Bf4 Be5 Ng3 Kd4 Nab4 Kc5 Ke4 Kb5 Kf3 Bd4 Nf1 Bf6 Nbc2 Ka6 Bh2 Nce3 Rc4 Rg3+ Kf2 Qcb5 Nb6 Bh8 Na8 Rg7 Rf4 c4 Kf3 c5 Qd8 c6 Qg5 c7 Ba2 c8N Kf2 Ne7 Nb4+ Kb7 Rh4 Neg6 Nd5 Ka6 Qc7 Qc6 Rg4 Re4 Rh4 Rd1 e1Q Re7 Rb4 Rd4 Ke2 Nc4+ Kf3 Re3+ Kf2 Rc3 Ke2 Re3+
qr1B1K2/N3nRR1/n1QNB2p/B3Q3/3Rn3/2nq1n1P/1R3r2/1b1kqq1Q b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 Kd3 Kf7 Kc4 Kf6 Kd5 Kf5 Kd6 Ke4 c4 g5 b4 a5 b6 a4 f5 a3 b7 h6 f6 a2 c5 g4 b5 d3 c6 g3 b6 g2 h3 d2 c7 Ke3 f7 Ne7 f8R Ng6 Rf7 Ra4 Nc3 Nh4 Ne4 Qg8 Ke7 d5 Nd6 Bd7 c8Q d4 Qc6 Na6 b8R d3 b7 Bf5 Rb1 a1N Rb2 Ra2 Rd8 Nb3 b8B Nbc5 Bc7 Ne4 Ba5 Bh7 Rd7 Qa8 Rh2 Rc8 Bd8 Nf5+ Kf8 Bg6 Rb4 Rc2 Rd4 Ne7 Ba3 Bf5 Bb4 Rb8 Ba5 Bg6 Qe1 d1Q Rg7 d2 Ra7 Nf5 Raf7 Qa1 Qb1 d1N Qbb7 Ndc3 Qb1 Kf4 e3+ Kg3 Bc4 f1Q Ne2+ Kf2 Be6 Ne7 Qbb7 Qae1 Qb1 Ncd5 Nc3 Qd3 Ncb5 Ke2 Na7 f2 Qa1 g1N Qc1 Nef6 e4 Nf3 e5 Nc3 Qa1 Nfe4 Qc1 Qed2 Qh1 Qe1 Rg2 Kd1 Rh2 f1Q Re2 Rc1 Rb2 Nb1 Ba2 Rc4 e6 Rc2 Bc4 Rf2 Ba2 Ng8 e7 Nbc3 e8Q Ne7 Be6 Bf5 Bd7 Be6 Bc8 Ba2 Be6 Bb1 Bc4 Nc8 Qe5 Ne7 Be6
b2R2Bk/2N1q1pn/3q2Qn/3Q2NK/2BR1NPb/bn3r1q/1N4b1/q3BR2 b - - 0 1 illegal: No proof kernel
1b1RNqQ1/5B2/b1k1n3/1pbN1b1n/3R3K/R3n1rB/RP4qq/1n1NBQ2 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 e5 cxd5 exf4 a4 g5 a5 gxh4 Ra4 a6 Ra3 Ra7 Ra4 Rb7 Ra1 Rb6 axb6 a5 Kf2 Kd7 g4 c5 d4 f5 e4 h5 e5 h3 g5 h4 b7 c4 d6 a4 g6 h2 e6+ Kc6 d7 a3 g7 f3 e7 h3 Kg3 a2 e8B f2 Bd3 f1N+ Kf4 c3 Qd2 c2 Na3 Nf6 Kg5 f4 g8Q f3 Ne2 f2 Nc4 Ne3 Nd6 f1Q Bf7 Na6 Qe1 Nc7 Bd2 c1B Ne8 Bc5 Bf5 Qg2+ Bg4 Qe7 d8R Bf5 Qf1 Qf8 Be1 Nh5 Kh4 Ne6 Nc3 Bd2 Rg1 h1Q Nd1 h2 Bh3 Ba5 b8R Bc7 Ra8 Bb8 Ra7 Rh7 Ra3 Rg7 d5+ Kb6 d6 Kc6 d7 Rg3 Rc1 a1N Rc4 Nb3 Rd4 Nd2 Ra2 Qf3 Rg2 Nb1 Rgd2 Qe2 R2d3 Qhg2 Rda3 h1B Rc8+ Kb6 d8N Qh2 Nc6 Qeg2 Ne7 Kb7 Nc7 Kb6 Ned5+ Kc6 Ne8+ Kd7 Rd2 Qf2 Rdd3 Bhe4 Rd2 Qfg2 Rd4 Bf3 Nf4+ Bd5 Rc4 Bb7 Rd8+ Kc6 Nd5 Ba6 Rd4
B1b1r2n/2k5/Q3nrp1/2nRr1rq/2N2B1n/1Q5B/1B2QRPK/1n1nRN2 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 g6 h6 Bg7 hxg7 Qb6 Be3 Qc7 Bc1 Qd8 Kf2 a5 c4 f5 b4 d5 e4 Kd7 b6 h5 b5 f3 Kg3 h4+ Kh2 h3 b7 d3 e5 d2 e6+ Kc7 c5 d4 e7 f2 e8R f4 c6 d3 Ne2 a4 Rg1 f3 Ng3 a3 Bb2 a2 Rh1 Nh6 g8Q Na6 Nf5 Qh4 Qc1 d1N Re2 d2 Re6 Qh5 Na3 Nc5 Bc4 f1R Re5 f2 Rd5 Nf7 Ne3 Ra5 Qc2 Nc3 Re1 d1N Qe2 a1N Qh7 Rg1 Nf1 Nc2 Bb3 Rg8 Nc4 Re8 Qh8 Re5 Qf6 Nd4 Bc2 Nh8 Be4 Nb1 Bf3 Bg4 Be4 Nde6 b8B+ Kc8 b6 Bf5 Nfe3 f1R c7 Kb7 c8B+ Kc6 Kg3 h2 b7 Rf4 Nf1 Bg4 Qg5 Rf6 Qc1 Rg5 Bf4 Re5 Qc3 Kc7 Qa3 Rb5 Qa6 Bh3 Nfe3 Rf1 Rg1 h1N+ Kh2 Ng3 Bf3 Rf2 Rgf1 Nf5 Be4 Rf3 Rf2 Nh4 Nf1 Rg3 Bf3 Rg5 Be4 Rb6 Bf3 Rd6 Be4 Rd8 Bd7 Rc8 b8Q+ Kd8 Qb3 Kc7 Bc6 Re8 Ba8 Nd8 Bf3 Bc8 Bg4 Nde6 Bh3
1N1R2B1/7n/1rr4q/n1QN1Q1B/1q2Q2n/2bb1B2/ppN3PK/q1Bkr2R b - - 0 1 illegal: No possible last move, all moves rejected
BNNb1R1R/4q3/b7/1nr1qRRB/2nQ2n1/Qr2p3/K1PB2p1/Nrq4k b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Kc3 Ke6 Kb3 Ke5 h4 a5 h5 g5 f3 d5 b6 e3 h6 Kf4 c6 Kg3 f4 e5 b7 e2 h7 e1Q c7 a4+ Ka2 d4 b4 a3 f5 d3 f6 d2 f7 e4 b5 e3 b6 Nd7 b8R Ba6 c8B Ngf6 b7 Qe7 Rh6 Nb6 Kb3 a2 Bg2 Nc4 Rg6 Kh2 Na3 g3 Nb5 g4 Ne2 Qh1 Be4 g2 Rg5 g1R Na7 g3 Nd4 g2 Bg4 Bh6 Rf8 Rb8 Bh5 Ng4 Rf5 Bg5 Nc8 Rg8 Rb1 a1Q h8R Qa5 Bf3 Qae5 Ka2 Bh4 Be4 Rg5 Rb5 Re1 Nb3 Kg1 Qf3 d1N Na1 Kh2 Bd2 Nc3+ Kb3 Qf1 Qd1 Kh1 Rc5 Nb5 Ka2 Rg6 Bf3 Rc6 Rd5 Rc5 Rg5 Qg3 Rdf5 Qge5 Be4 Nh6 Qg4 Rb1 Bd5 Qc1 Qd4 Ng4 Bf3 Ra8 b8N Ra7 Ba8 Rd7 Qf4 Rd3 Qd4 Rc3 Rfg8 Rcb3 f8Q Qh7 Qfd6 Qhe7 Rgf8 Qe8 Rg6 Bd8 Rgg8 Q8e7 Rgg5 Rc7 Qb4 Rc5 Qa3
1b1N2Q1/1Rr1N1n1/K1R1Bqn1/n3R3/N1rbQ1q1/1k1p4/1qN1P2p/1Q2Bb2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 h5 g4 a5 b4 f5 g6 f3 g7 a4 c3 d3 g5 h4 b6 f2 Kb5 Kd5 b7 a3 g6 a2 Rh3 d2 Ba3 f4 Qe1 d1N Nf3 Qf6 Nd4 f3 Nc2 Nc6 b8N Na5 Nc6 Ra7 Nd8 Ne7 g8N Rc7 g7 Ne3 Bc1 d6 Bd2 Ng6 Qd1 Qd4 Be1 Nf5 Qd3 Rh5 Rg3 h3 Rg5 h2 Bh3 f1Q Bg4 Be6 Ka6 f2 b5 Qg2 b6 f1Q b7 Rh4 Qe4+ Kc4 b8Q d5 Ne7 Qgf3 g8Q Ng7 Bh3 Qg4 Re5 Qff3 Qb2 Qf6 Qc1 Kb3 c4 Qb2 c5 d4 c6 d3 Nc3 Bd5 Rb1 a1B Na4 Be6 Nc8 Bd6 Ne7 Rb7 Qd1 Bb8 c7 Bd5+ Ne6 Bc6 c8R Bd5 Rc6 Rc7 Qf5 Bg2 Qe4 Bf1 Nd8+ Qge6 Qf5 Rc4 Qe4 Qef5 Bg4 Qf3 Be6 Qg4 Rc1 Qa3 Rb1+ Bb2 Ra1 Bd4 Rb1+ Ka2 Rb7 Qb2 Nb4+ Ka3 Qb1 Kb3 Nc2+
6bN/2Rr2nq/1r2QRB1/2b4R/1NnP2KB/2Bn2Bp/kqQr1qpQ/8 b - - 0 1 illegal: No proof kernel
1Bb1q1B1/3BNrr1/3k1b1N/4R3/NK1P1nQ1/n1Q2p2/4RN1p/2qrqb1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 a5 e4 f5 d6+ Ke6 g5 c5 d7 h5 b6 f3 b7 h3 g6 a4 b5 h2 g7 h4 e5 c4 b6 c3 Ra2 c2 Bh3 a3 Nc3 Ra6 Na4 Kd5 e6 f4 e7 Nf6 g8B+ Kd6 e8Q Bg7 Qee2 Qc7 d8N Nbd7 b8N Ne5 b7 Nd5 Nbc6 Qf7 Ne7 Qe8 Bd7 Nc4 Nh3 Rh7 Nf2 Ra7 b8Q+ Rc7 d4 h3 Qb3 Bf6 Qc3 Rf7 Rg1 Rb7 Rg5 h1Q+ Qf1 h2 Re5 Qg1 Bd2 Qg3 Qh1 c1Q Be3 Ra7 Re2 a2 Bd2 a1R Be3 Rg7 Nf7+ Kc7 Nh6 Kd6 Bd2 Na3 Be3 Qb1 Kd2 Qc1+ Kd3 Rc7 Qdg1 Qh4 Qg4 Rf7 Nd1 f2 Bd2 f1B Nf2 f3 Bf4 Qg5 Bg3 Qe1 Bf4 Rb7 Bg3 Qgc1 Bf4 Nc2 Kc4 Ra7 Bg3 Nf4 Kb5 Na3+ Kb4 Rg7 Bb5 Ne6 Ng6 Raf7 Ne7 Qg5 Bd7 Rd1 Rf5+ Qf4 Bc6 Kc7 Bd7+ Kd8 Rc5 Qc1 Bb8 Nf4 Rd5 Nb5 Ba7 Na3 Bc5 Kc7 Rde5 Bb7 Bb6+ Kd6 Ba7 Bc8 Bb8#
1rN3B1/Nnrq1Qb1/Kb4b1/5Q2/R1p1n2k/B1Prpn1R/6q1/Q2Q2BR b - - 0 1 illegal: No possible last move, all moves rejected
Kn6/6B1/3bQ2B/N3Q1qB/1qpRRr1r/1Pr4p/Qq1NbR1k/1Q1b2n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 a5 g4 h5 g5 a4 b6 f3 g6 f2 g7 a3 b7 a2 Na3 f6 Bh6 h3 Nc4+ Kc7 Qb1 h4 Nf3 h2 Nfd2 h3 Na5 Ne7 g8Q Bg4 d6+ Kd7 e3 Ng6 Kd5 f5 e4 f4 e5 f3 Be2 Qg5 Rf1 h1Q b3 Nh4 Qe6+ Kd8 d7 Kc7 d8R Bd6 Re1 f1B Bd1 c4 Re4 f2 Rf8 Bfe2 Rf4 f1Q Rf2 Qhg2 Bg7 Nc6 Bh6 Raf8 b8B+ Kd8 Ba7 Kc7 Bc5 Bgf3 Bb4 Nb8 Bc3 Qe1 Bb2 Na6 Bc3 Rf4 Bb2 Kd8 Kc6 Nb8+ Kb7 Qh2 Ka7 Kc7 d5 Bg4 Ka8 Nf3 Qg6 Rh7 e6 Ng1 e7 Bh5 e8Q Qhg2 Nf3 Qb4 Nd2 Bhg4 Qe5 Rh8 Bf8 Rh4 Qge6 Bh5 Bh6 Qh2 Qc2 Bhf3 Rc1 a1R Qb1 Ra2 Ba1 Rc2 Rd4 Rc3 Bb2 Bf1 Be2 Bg4 Re1 Qg2 Bf3 Be2 Qa2 Bd1 Ree4 Qh2 Bh1 Bge2 Bf3 Qhg3 Bh5 Qe3 Nf1 Qc1 Nd2 Qc2 Ba1 Qb2 Q6f5 Bc2 Nc6 Rfg4 Qh2 Be5 Na5 Kd6 Rd3 Qc1 Nf3 Qcd2 Qb1 Bcd1 Qg3 Rc2 Qe6+ Kc7 Bd4 Rc3 Qf4 Qc1 Qd2 Qca3 Qda2 Qb2 Nd2 Bg3 Bdg7 Be5 Qb6+ Kd7 d6 Ke6 Rh2 Kf5 d7 Bc7 d8Q Rf4 Rdd4 Be5 Rf2 Bc7 Be8 Kg4 Qdf6 Kg3 Qbe6 Be5 Bh5 Bd6 Rf1 Kg2 Qfe5 Kh2 Rf2+
7N/nqr5/4rQnR/BN1R4/2p2q1n/p1N2QrN/bPKb3q/4kBQB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 d4 Kd6 Kd2 c5 e4 a5 b6 f5 b7 h5 g5 h3 g6 f3 g7 h4 Qb3 h2 Bc4 a4 Kd1 h3 Qa3 f2 Qb3 f1R+ Kc2 f4 Qb5 f3 Kc3 a3 Qb3 f2 Bd2 Rh6 Kc2 Qb6 Nc3 Re6 Rd1 Nc6 b8N Qb7 Na6 Nge7 g8Q Na7 Nc7 Bh6 Bd3 Re1 Bf1 Re3 Qg2 Ng6 e5+ Kd7 d6 Rg3 Be1 Bd2 d5 c4 N7b5 Rb8 Bd3 f1Q Be2 Qf4 Bf1 Qc7 Qf3 Rb7 Qb4 Qb8 Qc5 Rc7 Qce3 Qb7 Qb6 Kd8 d7 Ke7 d6+ Kf7 d8N+ Kg7 d7 Kh6 Qbf2 Kg5 Nf7+ Kh4 Qc6 Kg4 d8Q Bd7 Qd5 Bc6 Qd3 Be4 Qf6 Bf5 Nh8 Be4 Nf3 Bf5 Ng5 Be4 Rg1 h1Q Qc5 h2 Nh3 Bf5 Rg2 Be4 Qg1 Bf5 Rf2 Qhg2 Rf3 h1N Qe4 Qh2 Rd3 Nf2 Rd5 Nh4 Rb1 Nd3 Qeg2 Ra6 e6 Ne5+ Qe4 Rd6 e7 Re6 e8B Bh7 Qef5+ Kf3 Bc6 Neg6 Ne2 Bc1 Ba5 Bd2 Nec3 Qf2 Rd6+ Ke3 Bd3 Nf3 Ng5 Qe5 Qg2 Qd4 Rh1 Nf4 Rh6 Nh4 Nh3 Bg6 Qf1 Qh2 Bh1 Qe5 Qh5 Be4 Qhf5 Nfg6 Kd1 Qd4 Be2 Bb1 Rd5 Ba2 Kc2 Qe5 Qg4 Qf4 Qd1 Rg2 Bf1 Rg1 Ng5 Kf2 Qdf3+ Ke1 Nh3 Rg2 Qd3 Rg1 Qdd4 Rg2 Qg1 Rg3 Qf3
2Bn2n1/7B/1bRrQ1B1/krNqn1K1/p4B2/1R2PN2/N1qQp3/r1Rq3b b - - 0 1 illegal: No proof kernel
KB1n1Q2/1BRnN1Nq/2b2n1R/2Q1Q2P/1r1p1k1q/B1bq3r/R2R1p2/6r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 f5 e4 a5 c4 a4 h4+ Kh6 b4 g5 c5 d3 b6 g4 e5 a3 c6 d6 c7 a2 e6 g3 b5 d2 e7 g2 e8Q f3 b7 f4 b6 f2 Ne2 g1Q Ba3 f3 Nf4 Rh7 Bg2 f1Q Nc3 f2 Qc2 Nd7 Kc6 d1R b8Q d5 b7 d4 Ncd5 Qh2 Ne6 Ngf6 Qc5 Ra4 Ne7 Rb4 Ng7 Qd3 Rf1 Rdb1 Rd1 Qhh3 Rd2 Rg1 Qa8 Qhf5 b8B Bb7+ Kd6 Be4 c8R Bc6 Rc7 Rh8 Qaa5 Qh7 Qe5 Bd5 Qc5 Bc6 Rc1 a1N Rcc2 Nb3 Ra2 Na5 Qf7 Ba8 Bb7 Nc6 Qg8 Qe8 Qf7 Nd8 Qg8 Qeg6 Qf7 Qg4 Qe8 Ne6 Kc6 Qgg3 Qc8 Nd8+ Kd6 Qb3 Be4 Rb1 Qc6 Rg8 Ne8 Bg7 Rdb2 Qh8 Qc5 Nb7+ Kc6 Rh1 Bg2 Qbd3 Bf3 Kh7 h6 Rh3 Nd5 Kg6 h7 Bh6 Bg2 Bd2 h5+ Kh6 Ne7 Bc3 Rd2 Qh4 Qd8 Rg5 Ng7 Rgg3 Bd5 Rg1 Qf8 Qg8 Qe4 Kg5 Qe5+ Kg4 h8R Nd8+ Kd6 Rc4 Rh6 Qgh7 Be4 Nb7+ Kc6 Nd8+ Kb5 Bd5 Ka6 Rb4+ Ka7 Ba8 Bg6 Bf3 Be4 Bh1 Bb7 Bc6 Ka8 Kf3 Qe1 Kf4 Qee5+
7K/k1n3r1/1qr2n1B/N1bQ3p/Rb4B1/B1NpRQ2/1b1qB1NP/n2q3R b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Kf2 Bb7 Ke1 Be4 Kd2 exf4 Ke1 f3 Na3 f4 Nb1 Bf5 gxf5 Be7 Na3 Bd6 Nb1 Bf8 Kd2 d5 Kd3 Kd7 c4 Kc8 b4 Kb7 e4 h5 e5 a5 c5 g5 c6+ Ka7 e6 f2 c7 f3 c8B g4 f6 g3 e7 a4 e8R a3 f7 g2 Re3 a2 Nc3 Na6 Bg4 Nc7 Be2 f1Q Nh3 g1B Nf4 f2 Ba3 Rh6 Ng2 Nf6 Qd2 Bc5 f8B Qc1 Qd1 Rg6 Bh6 f1N Qd2 Rc8 b6+ Ka8 b7+ Ka7 b8N Rg7 b5 Bb4 Qd1 Nd2 Qf1 Nb3 b6+ Ka8 b7+ Ka7 Qf2 Qd6 Qf3 Qb6 Nd7 Qe1 Ne5 Qc1 Nc4 Bf2 Rb1 a1B Na5 Bb2 Ra1 Bg1 Ra2 Na1 Qf1 Na8 Qf3 Rc6 b8Q+ Ka6 Qf2 Nc7 Qd8 Ka7 Qf3 Qe1 Qd7 Qf2 Kd2 d3 Qd6 d4 Qdd5 Ng8 Re7 Qe3+ Ke1 d2+ Kd1 Bc1 Bb2 Ka8 Ra4 Ka7 Ba3 Bb2 Re6 Rf7 Re4 Nb3 Kc2 Qf4 Kd3 Na1 Re5 Qg5 Ke4 d1Q Re6 Qgd2 Ke5 d3 Re8 Rd7 Kf5 Nf6 Kg6 Bgc5 Re3 Be7 Kg7 Bec5+ Kh8 Rf7 Be6 Rg7 Bg4
1r3bNK/n3R1NR/1B1r2b1/QnR1q1p1/4pqQ1/7B/QkN1Q1P1/2n3bq b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Qd6 Bd3 Qh6 Bf1 Qxh2 Ke2 Kd7 Ke3 Kd6 Kd4 g5 b4 h5 f4 a5 f5 e6 b6 h4 b7 a4 b5 h3 f6 e3 f7 e2 b6 e1N Ba6 a3 Nc3 a2 Qg4 c6 Nf3 Qf4+ Ne4+ Ke7 d6+ Kd8 d7 Ke7 d8N Nd3 Ne1 h2 Nc2 Qf1 Nf6 Nh6 Ng8+ Kd6 Ke4 e5 Ne6 c5 Ng7 Nc6 b8R c4 b7 Be6 Re8 Kc5 b8Q c3 Bc8 Kc4 Qa7 Kb3 Re7 Nf5 Ba3 Bc4 Rc1 a1Q Bc5 Rb8 Bb6 Rh6 Qe2 Nfd4 Bh3 Qa5 Qd7 Ba6 Qdg4 Nb5 Kd5 Kb2 Ke4 Nf4 Kf5 Nca7 d4 Rd6 d5 e4 Ke5 Qf2 Kf5 Bc8+ Ke5 Be6 Kf6 Nd3+ Kg6 Qg3 Kh7 Bf5+ Kh8 Bg6 Qd7 Qf4 Qdg4 Rf6 d6 Qa1 d7 Rd6 d8Q Qa5 Rcd1 Nc1 Rd5 Qa1 Rhd1 h1Q Rc5 Qa4 Rdd5 Qd4 Rf5 Qde5 Rf6 Bf5 Rh6 Bg6 Rh7 Rf6 Qdd2 Rd6 Nd4+ c2 Qa5 Nd3 Qf1 c1B Nc2 Be3 Qfe2 Bg1 Rd7 Be7 f8Q Nc1 Qf7 Bf8 Re7 Rd3 Qfe6 Rd6 Qea2+
1Q1rq3/2qQ2Nb/3Rqn2/QB2nPpp/R3R3/1R1Nbr2/2kr4/K1N1B2b b - - 0 1 illegal: No proof kernel
3b2RB/2n1Nq2/1K2n2q/1Nr1np1Q/2r1pN2/NqRP3Q/B3BkQ1/5r1b b - - 0 1 illegal: No proof kernel
2bbnB2/2QRRr1B/1N1B1Q1K/1prn4/bq2R1P1/N3Nk1p/3n1q2/5N1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 c5 Kg5 Ke5 a4 Ke4 f4 b5 g4 e5+ f6 h5 d4 b3 a5 b2 d6 c4 a6 c3 d7 c2 f5 h3 a7 h2 d5 h4 d6 h3 Bf4 c1N Bd3+ Kd5 Na3 b1R Ne2 e4 Ng3 e3 Re1 h1B Qc2 e2 Qc7 Qe7 d8Q Na6 d7 Nb4 Bd6 Be4 Nf1 Nb3 Ra2 Rb8 a8N Rb7 Nb6+ Kd4 Rd2 Nd5 Nbc4 Rh5+ Kg6 Rc1 f7 Ngf6 Nce3 Ne8 Rc2 Bg7 f8B Bf6 Ra2 Rg5+ Kh6 Nd2 Bc2 Rb1 Rb2 Bd3 Rb4+ Bc4 Ra4 Qe4 Ra7 Bb3 Qe7 Ba4 d8R Qg2 Rd7 Qf2 Qed8 Be7 f6 Rc1 f7 Bf6 Bd1 Ke4 Bc2+ Kf3 Bh7 Re5 Qe7 Rc5 Qe6 Bd8 Qf6+ Rf5 Rc1 e1Q Rc4 Qb1 Re4 Rc1 Bg7 Qb2 f8N Qb4 Rde7 Ra1 Nd7 Rd1 Nb6 Ra1 Qd7 Rc7 Bf8 Rc5 Qc7 Re1 Ng3 Rh1 Ngf1 Rf4 Qc6 Rf5 Rad7 Rf4 Qc7 Rf5 Qe6 Rf7 Qf6+
1k3Q1n/1Bq1b2N/q2N2PR/1p1b2QR/r1b3Kp/Q2r3n/3r1BQ1/B1N2q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 c5 d4 Kc7 a4 e5 g4 b5 g5 h5 d6+ Kb7 d5 b3 g6 c4 a5 b2 f6 c3 d7 c2 a6+ Ka7 d6 h3 f7 h2 Ne2 Ne7 Qd3 Qa5 d8B Be6 d7 Nd5 Bg2 Nf4 Na3 b1Q Bh4 Bc4 d8Q Nc6 Bb2 c1Q Qg5 Be7 f8N Nd8 Nh7 e4+ Kg3 e3 Bb7 Qf1 Nc1 Nh3 f4 e2 f5 e1R f6 Qc2 f7 Rd1 f8Q Rd2 Qe2 Qaa4 Qg2 Nf7 Rb1 Rg8 Ba1 Nh8 Rb4 Rad8 Rb1 Kb8 a7+ Kc7 a8Q Qa6 Qa7 Qc3+ Qae3 Kb8 Rb2 Rd3 Rf2 Rg7 Rf5 Rf7 Re5 Rf4 Qef3 Qca5 Rd5 Qc7 Rf5 Bb3 Nc4 Re4+ Nd6 Ra4 Qfe3 Bc4 Rd5 Nf2 Kf3 Nh3+ Bf2 Rd2 Rg1 h1B Qa3 h4 Kg4 Qd3 Re1 Qf1 Ree5 Qab6 Qge3 Qa5 Rh5 Qa6 Rh6 Rd3 Rdh5 Rd2 Ne8 R8d5 Qg5 R5d3 Qg3 Bc6 Qg2 B6d5 Nd6+
2K1n1Br/2N2q1k/1Qn1BPNp/1q1Q1pQ1/6q1/1N2r1Bn/1r3b1R/RN1b4 b - - 0 1 illegal: No possible last move, all moves rejected
N2n1bqB/K1N4R/N1b2p1b/Q2q2q1/1pr5/P1NRQQ2/k1n1n1BB/2r5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 h4 b5 e4 g5 a3 c5 e5+ Kc7 d6+ Kc6 e6 Kd5 h6 b3 h5 f6 d7 g4 h7 f3 Ke3 f2 h6 b2 e7 b4 e8N c4 Nh3 c3 Ng5 c2 Ne6 g3 Nc5 g2 Na6 g1N Bg2+ Kc4 d5 Kb3 Kd4 f1Q d6 Qd3+ Kc5 Qd2 Nec7 Ne7 Kb6 Nec6 Nc3 b1Q Qf3 Qd5 Bf4 c1B Bh2 Qg6 Qe3 Qde8 d8N Bd7 Nde6 Ne2 Kb7 Rg8 h8B Qgg5 h7 Nd8+ Kb6 Bc6 d7 Ra7 Na8 Rc7 Qf3 Rc8 Nec7 Rg6 Qe3 Qef7 Qf3 Qg8 Ka7 Rh6 Ra2 Rh4 Rd2 Rc4 Rd3 Bf4 Bg7 Bc1 h8Q Bd2 Qhh3 Bc1 Na4+ Ka2 Bh8 Bb7 Bf1 Rc3 Qhg4 Q5g6 Qgf4 Ne6 Bg1 N6d4 Nb5 R8c4 d8Q Qg3 Bg2 Nbc6+ Kb6 Be3 Rh7 Rc1 Bh2 Nc2+ Qd4 Bg5 Qde3 Bgh6 Qc7 Nd8 Ka7 Qge5 Qa5 Bc6 Nbc7 Qeg5 Nc3+
1K1R2RR/Bn1q4/1NN1bp2/P3n3/5pNq/2qrb2B/Q3Q1Nr/2k1rbB1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 g5 e4+ Kc5 d4+ Kb6 h4 Ka5 h6 c5 d6 b5 h5 b3 h7 Kb4 a5 b2 d7 c4 h6 g4 d5 g3 d6 g2 Nf3 g1R Be3 c3 Nbd2 b1Q Ba7 c2 Ne1 Kc3 Qe2 Kb2 Nc4+ Kc1 Ng2 b4 Nb6 Qh4 d8R b3 d7 Ne7 Kd6 b2 Kc7 Nbc6 e5 Nf5 e6 Bc5 e7 Be3 e8N Ne5 Nf6 Nd6 Ng4 Nb7 Rg8 Rb8 d8N Be6 Nc6 Rd8 Ra3 Qa2 Rd3 b1B Rd2 Rd3 Kb8 Qa4 Rh2 Rc3 Rdd8 Rd3 Rgf8 Rg8 h8B Rg5 h7 Rh5 Bg7 f6 h8Q Qd4 Rg8 Qd7 Bf8 Bba2 Qh7 Bac4 Bc5 Rh1 Qf5 Rh7 Rh3 Re7 Qh5 Rh2 Qf7 Bed5 Qe1+ Rd1 Qe6 Bg1 Qg3 Nf7 Qf3 Kb2 Rg5 c1Q Qd6 Ree1 Bf2 Qh8 N2e3 Ne5 Qe6 Qc3 Rgg8 Kc1 Rh5 Qhh7 Bh3 Bf1 Ng2 Rd3 Qe2 Ba2 Qc4 Bb3 Qa4 Be6 Qaa2 Qh6 Rh4 Qg5 Rhh8 Qh4 Bg3 Bc5 Bf2 Be3 Bg1
K2n2QR/n1Bq3R/RP5q/2qn2p1/1b2r3/r3p2b/BBbN1k1Q/1N1R1N2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 f4 e5 b4 d6 c4 d3 h4 d2 c5 g3 h5 g2 c6 a4 h6 a3 b6 a2 h7 e4 c7 e3 b7 Bg7 b5 Bf8 b6 Nh6 Ne2 g1Q Ng3 Ra3 Qe2 d1N Qh2 Qd7 Bc4 Nc6 b8B Na7 Nf1 Nf7 Bb3 Rg8 h8R Nd8 Rh7 Qg4 Bc4 Qh4 Rg1 Qh6 Bb2+ Rc3 Rh1 Rg7 Bb3 Re7 Rg1 Re4 Rh1 Ba6 c8N Be2 Bc7 Bg4 Nbd2 Bh3 Ne7 Nf2 Rd1 a1Q Ba2 Ng4 Rh8 Qb1 Rh7 Qc1 Rh8 Kf7 f6 Ra3 f5 Nf2 Nc6 Nd3 Nd4 Qc3 Ne2 Qc1 Bd4 Qc2 Nc3 Nb4+ Kc4 Nd5 Rh7+ Ke8 f7+ Ke7 f6+ Ke6 Rg1 Be7 f8Q Kf5 f7 Qc1 Rh1 Kg4 Qg7 Qc2 f8R Qc1 Rfh8 Bf8 Nb1 Kf3 Qg8 Be7 Qb2 Bf8 Nbd2+ Kf2 Rg1 Ne7 Rh1 d5+ Kc5 Qc2 Bg7 d4 Bge5 d3 Ra1 Qca4 Ncb1 Qa6 Bf6 Qac8 Qe5 Nd5+ Qd6 Bg7 Bb2 Bc3 Qh2+ Bg2 Nc4 d2 Rg1 d1B Ncd2 Bb3 Ng3 Qa6 Rd1 Raa4 Ngf1 Bc2 Bb3 Qd3 Ra3 Ba5 Bc4 Qc3 Ra1 Nac6 Kb5 Na7+ Ka6 Qb4 Ra3 Qbf8 Ba2 Qc5 Qd6 Bh3 Qe5 Nf7 Kb7 Bb4 Ka8 Ra6 Ra5 Nd8 Qh2+ Bg2 Rb5 Ra4 Ra5 Ra3 Qh1 Bh3 Ra6 Be6 Qh5 Bg4 Qh1 Bh3 Qh2+
2KRBk2/NBb3qN/1P2n1bB/1Q1p4/2rrqR1p/7n/rBR1b1n1/4N1Q1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 e5 Kg4 a5 b4 e4 f4 h3 c4 h2 c5 e3 c6 d3 b6 h6 b7 a4 b5 e2 c7 e1Q Ra2 d2 Nc3 a3 Rc2 a2 Bb2 a1N Nf3 Nc6 b8Q Qe6 Ne1 Ba6 c8B Qe4 f6 Bg7 f7+ Ke7 f8B+ Kf7 Bb7 Qde7 g3 Qg2 Kf5 h5 g4 h4 g5 Be5 Bh6 Nd8 g6+ Ke8 g7 Bc7 b6 Nf6 g8N Be2 Nb5 Ne4 Na7 Qeg7 Nf6+ Kf8 Rg1 Qh1 Rg4 Ng5 Qc8 Nh3 Qd7 Qf3 Qb5 h1B Qc1 d1R Qb1 Nf7 Ke6 Qe4+ Kd7 Rd4 f5 Bhf3 Rf4 Bh5 Qc1 Bg6 Qe3 Rc8 Qg1 Rg8 Bg2 Rh8 Bf3 Ra8 Bh5 Rg8 Nc8 Ra2 Na7 Nfg5+ Kc8 Rh8 Qc4 Ne6 Qb5 Bh7 Be8 Bg6 Ng8 Rh7 f6 Rh8 f7 Rh7 Rc1 Nc2 Nf6 Ne3 Rc2 Ng2 Bec6 Ke7 f8R Rh8 Rd8 Rf8 Qf2 Rf7 Be8 Kf8 Qg1 Rd7 Rc6 Rd6 Rc3 Rc6 Rc2 Rcc4 Nh7+
3bq1n1/1b1nN1Rk/1P4p1/Bq1R1qQ1/pBnB2B1/8/N1Q1rQr1/5KRr b - - 0 1 illegal: No possible last move, all moves rejected
1q3Q1r/3Rb1K1/1p1pb1n1/n2NrQ1B/R3R3/2k1N1Q1/2rq1Pn1/1B1bR1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 g6 h4 e6+ f6 d3 a4 Kd4 c4 e5 a5 e4 h6 d6 h5 b6 c5 d2 c6 b3 c7 b2 a6 e3 a7 e2 h7 e1Q h6 Be6 c8Q Nd7 Nc3 b1R Bd3 Qe2 Nd5 Qe4 Qg4 d1B Ne3 Be7 Ne2+ Ke5 Nc3 Kd4 Ncd5 Nc5 Ra4+ Rb4 Qg3 Nb3 Bb1 Rc4 Re1 Qd3 Qd7 Rb8 a8B Na5 Bc6 Qd2 Bb5 Rb4 Be2 Rc8 Bh5 Rc2 Bb2+ Kd3 Be5 Qb8 Qc8 Rb5 Bf4 Bf8 f7 Ne7 Kf6 g5 Qc5 g4 Qc8 Rg8 h8R Ng6 Rh7 Rh8 Re4 Be7+ Kg7 Rc5 f8Q Rb5 Qf5 Rc5 Qcf8 Rb5 Qh3 g3 Be5 g2 Bh2 g1N Qg3 Nh3 Bg1 Rc5 Nb4+ Kc3 Rh4 Rc4 Bf3 Re4 Nbd5+ Kb2 Rg4 Re5 Ra4 Bh4 Bg4 Bc8 Kf7 Nhf4 Rg7 Kb3 h7 Rg8 h8R Ng2 Bf3 Bg5 Rhh4 Rh8 Bh5 Bd8 Rhe4 Be6+ Ke8 Kb2 Rd7 Be7+ Rd8 Bd7+ Kf7 Be6+ Kg7 Kb3 Rd7 Kb2 Nc7 Kc3 Ncd5+
3b3k/N1n2r1P/b3q2p/2R1nB2/1NN1Q1p1/rbB1q1qn/1Q3BB1/4RKQ1 b - - 0 1 illegal: No proof kernel
N2QR2r/n1B2b1p/2kbQ3/2B5/2RBqr1n/1BP5/K1bqn1p1/N2Q2Nq b - - 0 1 illegal: No proof kernel
bQ2n2K/3N3p/2R1B2q/1bRPN1Bp/2Qr3r/k1n1RR1q/1b3N1n/1qB5 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 h5 gxh5 cxd5 Bd6 Qb3 Bb4 Qd1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 a5 d4 f5 e4 c5 g5 f3 d6 f4 d7 f2 b6 a4 d5 c4 b7 f3 g6 c3 g7 a3 Qc2 a2 Rh3 Ra7 Nd2 Qh4 d8B Be7 Nc4 Na6 b8N Rc7 Nd7 Nf6 g8R Bb7 Rg6 Ne8 Rc6 Nc5 b3 Bf8 Bdg5 Ba8 Kf5 Bh6 e5 Ne4 e6 Bg7 e7 Rg8 Nce5 Rb7 Be2 f1B Qd3 f2 Rf3 c2 Nh3 Nc3 Qc4+ Ka5 b4+ Ka4 Rb1 a1Q Bd1 Qb2 b5+ Ka3 b6 Bd3+ Ke6 f1N Kf7 Nh2 Nf2 Qh3 Be2 Ra7 b7 Ra4 b8Q Bh8 Bf1 Rg6 Kf8 Rf6+ Kg8 Rf4 Be2 Rd4 Bd1 Bf1 Be2 Rh4 Bd3 Be2 Bf5 Rd4 Be6 Bf6 Bcf4 c1Q Rc5 Qbd2 Rb6 Qb1 Rbc6 Rb4 Be3 Rh4 Qg4 Bb5 Qc4 Nc7 e8R Qdc1 Re7 Ne8 Qd3 Rbd4 Qc4 Qcb2 Bc1 Qg6+ Rg7 Qh6 Rf7 Bh8 Re3 Bg7 Rff3 Bf6 Bd2 Qb1 Qd3 Rdg4 Qc4 Re4 Ned3 Na2 Bc1+ Bb2 N3e5+ Nc3 Kh8 Reg4 Nf6 Rd4 Nfd7
r1q3bK/1B2k2p/p5N1/5r1Q/2qQ2R1/Pn1Q2N1/2rb1RQB/2BnbnR1 b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 e5 Ke3 b5 d4 a6 f4 b4 g4 h3 f5 b3 f6 h2 c6 b2 d6 Nh6 d7+ Kf7 d5 Bg7 a3 Ng8 g5 Ne7 d6 Ra7 g6+ Kf8 c7 Qe8 d8B Nbc6 f7 Qd7 Ne2 Na5 Nd2 b1R Bg2 Bh6+ Nf4 Ra8 Qh5 Nb3 Rg1 h1N Nf1 Nf2 Ng3 Rb2 Rb1 Qb5 d7 Rc2 Bf3 Bb7 c8Q Qc4 Qc5 Bd5 Qd4 Qc8 Bc7 Rg8 Bd2 Nf5+ Ke2 Nd3 Qa1 e3 Nf1 e4 Qh8 Na1 Rb4 Rb2 g7+ Ke7 f8R Be6 Ra4 Rb5 Bc1 Nf2 Rf6 Rd8 g8Q Nb3 Qg2 Nd1 Rf8 Bg8 Ng6+ Ke6 Bh2 Ng3+ Ke1 Re8 d8Q e2 Rc4 Re7 Qd3 Rc7 Rf4 Rd5 Rc2 Rc3 Rg4 Rf5 Ra2 Qc5 Rd2 Rc2 Qg7 Qc4 Qa1 Ne3 Kf2 Bf4 Qad4 Bh6 Qgh3 Nd1+ Kg2 e3 Bb7 e1Q Re2 Qb5 Rf2 Bf4 Kf3 e2 Qg2 Qc3 Qh8 e1B Qd4 Ne4 Ng3 Qc8 Rg5 Qbc4 Kg4 Ned2 Kh4 Be3 Rg4 Rf4 Kg5 Nf1 Kh6 Rf5+ Kg7 B3d2 Kh8 Kf7 Nf8+ Ke7 Ng6+
qrN5/R4Qp1/B2RPQRQ/1b4r1/1B2bpB1/2rR3N/1q2nq1b/1k1K1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 b6 f3 e4 Ke7 c4 Kf6 h4 Ke5 b4 f5 h6 a5 c5 d5 h7 f2+ Ke2 a4 b7 a3 b5 a2 h5 Nf6 h6 Nc6 b8R Nh5 b6 Bd7 b7 Bd6 Nh3 Ra3 Nc3 d3+ Kd2 Kd4 e5 Rf8 h8R Ng3 h7 Re8 Be2 f1Q Qb3 Qf2 Ne4 Ra5 Ba3 Nf1+ Kc1 d2+ Kc2 d1R Rg1 Rd3 Rg6 Qb6 Rd8 Rg8 e6 Bh2 b8Q f4 Qa7 Ke3 Qb1 d4 Qb2 Rb3 Rd1 a1Q Nd6 Qb7 Ra8 Rb8 Rd8 Qa2 h8Q d3+ Kc1 Nd4 c6 Rg5 c7 Bb5 Bb4 Qa3 c8B d2+ Kb1 Qh1 Bg4 Kd3 Qh6 Ne2 Qf7 Qe4 Ra7 Qa8 Rc1 d1B Rc6 Neg3 Kc1 Bf3 Rb6 Be4 Ba6 Ne2+ Kd1 Qa2 Qe5 Qb2 Qef6 Rc3 Nc8+ Qd4 Ke1 Kc2 Rc6 Qe3 Rd3 Kb1 Kd1 Qf2 Rcd6
bn4q1/3R1Qp1/r2qp3/1N1Q2k1/2BN1b2/N3qr2/K2Bb1Pn/1r2RRBB b - - 0 1 illegal: Other
1RQR1qb1/n4P2/b2p1KRp/k2qr1N1/1n1B3N/N1Q1NBQ1/r3rq2/b7 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kd3 a5 Ke4 d3 g4 d2 f4 h6 c4 a4 b4 a3 b6 h3 c5 h2 c6 a2 f6 Ba6 Kf5 e4 b5 e3 b7 e2 g5 e1R b6 Re2 f7+ Ke7 c7 Kd6 c8Q Kd5 g6 Re3 g7 Re7 Bb2 Kd6 Na3 Ra7 Nf3 Nc6 b8Q+ Kc5 b7 Kb6 Nh4 Nf6 g8N Qe8 Bg2 Bg7 f8N Nd5 Bf3 Ndb4 Qc1 d1B Qc3 Bb3 Nf6 Ka5 Rag1 a1Q Ng4 Qf1 Ne6 Qf2 Ng5 Bg8 Ne3 Qf8+ Kg6 Bf6 f5 Re5 Rg4 Ra8 Rd1 h1Q Rd3 Bg7 f6 Na7 f7 Qd1 Qd6 Qb3 b8R Qd5 Nef5 Re2 Qg3 Bd4 Rd1 Re5 Kf6 d6 Rg1 Rh7 Ne3 Rg7 Ne6 Rgg5 Ra1 Rh5 Rg6 Rhg5 Re1 Rg4 Ng5 Rge4 Neg2 Re2 Ne3 Qg2 Rc1 Qf2 Qd2 Ka4 Qc6+ Bb5 Nb1 Nc8 Qd7 Ra5 Qf5 Na7 Rcc8 Bc3 Rd8 Ba6 Qc8 Bd4 Bc1 Ba1 Bb2 Qc4 Bd4 Qd5 Ra8 Kb5 Qdc3 Raa2 Rb8+ Ka5 Na3
1B2Q3/2rbpRb1/1QR1n3/b6K/Q3BP1n/2pk1NqB/1q1rN2N/1q2r2B b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 d4 Kg6 b4 Kf5 g4+ Ke6 b6 Kd5 b5 h5 g6 a5 b7 c5 g7 a4 b6 a3 g5 c3 g6 Kc4 d5 a2 d6 c2 d7 e3 Kf3+ e2 Nd2+ Kc3 Bh3 e1Q Ne2+ Kd3 Rf1 h4 Kg4 Nh6+ Kh5 c4 g8B Ra7 g7 Nc6 b8N Qc7 d8Q+ Bd7 b7 Nd4 Bd5 Qg3 g8B Ne6 Qe8 Bg7 Nc6 Nf5+ Bh7 c3 b8Q Rc7 Qb6 Rg8 Ba3 c1B Bd6 Ba3 Qa4 Bb4 Nf3 Ba5 Nh2 Qb1 Ncd4 Qb2 Rae1 a1Q Ndf3 Qaa2 Ra1 Qab1 Ra3 Rh8 Rb3 Rf8 Rb4 Rf7 Rc4 Rf6 Rc6 Rf8 Bg2 h3 Bh1 Rf7 Bg8 Nh4 Bf4 Rc8 Bb8 Rc7 Ng5 Rf4 Bdg2 Rd4 Ngf3 Nd8 Bd5 Ne6 Ng4 h2 Bh3 Q2a2 B1g2 h1R Ngh2 Rg1 Bh1 Qb5 Rb1 Re1 Rb4 Qb2 Rbc4 Rg4 Rf4 Qb1 Rf7 Rd4 Nfg1 Q5b2 f4 Re4 Ngf3 Rd1 Ned4 Ree1 Ne2 Rd2 Be4+
Bq6/1qBnp2N/n4n1R/r3QP2/1b2r2R/1k1rQ1Qp/2R1R1N1/q1Bb3K b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 c5 b4 h5 f4 a5 Kf2 a4 Kg2 c4 d6 Ke6 b6 Kd5 g5 a3 b7 c3 b5 a2 g6 c2 f5 e3 b6 e2 g7 Kc4 d5 Nc6 b8R Na5 b7 Qc7 d7 Nf6 d8B Nb3 g8Q Be6 d6 Nc5 d7 Ra5 Qg3 Bg7 Nf3 Na6 Rc8 Kb3 Qde1 Qb8 Bc7 Rd8 Na3 h3+ Kg1 h4 Nc4 Bf7 Ne3 Bh5 Ng5 h2+ Kg2 Bh8 Nh7 Bg4 Qef2 e1R Bd3 Bg7 Be4 Bd1 Bf3 Re2 Re1 Bh8 Kh1 Bg7 Ng2 Re4 Qe2 Bh6 Qef2 Bd2 Re2 Bb4 Qb6 Ka4 Rb1 a1Q Rb2 Ka3 Ra2+ Kb3 Ra4 Rg8 Qe5 Rg3 d8R Rh3 Rd6 Rg3 Bd2 c1N Qe3+ Nd3 Bc1 Rh3 Rc6 Rg3 Rcc2 Rh3 Rh8 Rg3 Qh6 Ndc5 Qd2 Ncd7 Qh6 Rd4 Qhe3+ Rd3 Be4 Rg4 Bf3 Re4 Qg3 Qd8 b8Q Qf8 Qb5 Qb8 Qbe5 Rd4 Ng5 Nb6 Rc6 Nbd7 Nf4 Be1 Kg2 Rc5 Rh6 Ra5 Nh7 Rb4 Rcc2 h3+ Kf1 Bd2 Ba8 h1Q+ Kf2 Qc6 Kg1 Qcb7 Ng2 Rg4 Rf4 Bb4 Kh1 Rh4 Rf3 Rc4 Rf4 Re4 Rfh4
NB2K2N/NQ2pNQn/1q2qrP1/b1nBq3/R3bp2/5r2/1B1Rb3/Qk1n4 b - - 0 1 illegal: No proof kernel
3q4/K3p2p/1B1b2r1/1R1Q2n1/n2r1Qq1/1n4rN/1RNQ1NkP/1Q1bqRB1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 cxd5 g6 a4 Nf6 axb5 Ng8 Be2 Qd6 Bg4 fxe4 f5 Qd7 f6 Qd8 Bf5 gxf5 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 c6 b4 e3 f7 e2 g5 e1Q g6 f4 g7 a4 b6 f3 b7 f2 b5 f1Q b6 a3 Ra2 Qe6 Rb2 a2 Nh3 a1N Na3 Ra6 Nc2 Nd7 b8R Qfe1 b7 Ngf6 g8N Bh6 f8Q Nc5 Rf1 Nfe4 Nf6 Rg8 Ng4 Ng5 Ngf2 Na4 d3 Rg6 Be3 c5+ Kc4 Ke5 Kb5 c4 d6 c3 d7 Rd6 d4+ Kd5 Qf4 Nb3 Qd3 Qg4 Qd2 Nb6 Ka6 Na4+ Ka7 Bg7 Ra8 Be5 b8Q Ba6 Qb6 Be2 Rb8 Bd1 Qb4 Rc6 Qb6 Rc4 Qb4 Bd6 Rb6 Qe8 d8B Qed7+ Rb7 Qe8 Bb6 Qd8 Qa3 Rb4 Qa2 Rc4 Qb1 Rb4 Na3 c2 Rb8 c1R Rb7 Rc3 Nc2 Rd3 Rb8 Rc4 Rb7 Rcc3 Rb8 Kc4 d5+ Rd4 Rb7 Bc7 d6 Kd5 d7 Bd6 Nh1 Rcd3 Bg1 Rg3 Rb8 Qe8 d8Q Qg8 Qff8 Ke4 Qh6 Qe8 N1f2+ Kf3 Qf8+ Kg2 Qff4 Qg8 Qd7 Qd8 Qb7+ Qf3 Qd5 Qfe4 Bc7 Qf3 Rb5 Qfe4 Bb6 Qf3 Qde5 Qg4 Qd5+
kn3qQ1/3p1r1b/q2Q1nN1/Q1BPp3/1qbr3B/3r1n2/N1BR1K1B/2R1N3 b - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 cxb5 Bg7 a5 Bf6 Na3 Bd4 Nb1 Bb6 axb6 Kf8 Ra3 Kf7 Ra1 Ke8 g4 h5 f4 c5 d4 a5 d5 e5 f5 h3 g5 h2 b7 c4 f6 a4 g6 a3 g7 a2 b6 e3 b5 h4 Qd3 h3 Qd2 c3 Nf3 e2 Kf2 e1N Bd3 c2 Nc3 Rh4 f7+ Ke7 f8N Kd6 Bg6 Nf6 g8Q Rd4 Bh7 Ra5 Ng6 Qf8 Rb1 a1Q Na2 Ra3 Rb2 Qb1 Qa5 Rad3 Bg5 c1R Rd2 Qb4 Bh4 Rc6 Rg1 h1B Rf1 h2 Rg1 Nc2 Ne1 Be4 Rf1 h1Q Rg1 Na6 b8B+ Kc5 Bc7 Nb8 b7 Re6 Bg3 Re7 Bd8 Qhh6 Bh2 Rf7 b6+ Kd6 Nf3 Ne1 Rf1 Ng2 Rc1 Nh4 Ne1 Nf3 Rc5 Ne8 Bh4 Nf6 Rc7 Nc6 b8Q Ba6 b7 Bc4 Qba8 Bf5 b8B Be4 Ba7 Nb8 Rb7 Bf5 Rb6+ Kc7 Qc6+ Kd8 Qd6 Kc8 Ra6 Kb7 Rc6 Ka8 Rc7 Qc8 Bc5+ Qa6 Rc8 Qf8 Bb6 Bb3 Rc1 Bc4 Bc5 Bg4 Nh8 Bh5 Bf5 Bg6 Be4 Bh7 Ng6 Rc3 Bb1 Rcd3 Bc2
bK1k4/1R1p1Q2/Pn4R1/2b1N2n/R1Qpr2q/1q1r1N1B/1q3n1R/b1N1Q1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 e5 Kd3 g5 Kc4 b5+ Kd5 b3 a4 g4 f4 b4 c4 b2 h4 e4 c5 e3 f6 g3 c6 e2 a5 e1N f7+ Ke7 a6 b3 c7 g2 f5 Bh6 f8R Bf4 h6 Bd2 h7 Nd3 h5 Qe8 h6 Be1 Ra4 Qh5 Ne2 g1B Bh3 Nc6 Nd2 b1Q Nf3 b2 Rh2 Nf2 Rf6 Bb7 c8Q Bc3 Be3 Qh4 Qe1 Ne5+ Rc6 Qc2 Nc1 b1Q Qc7 Qbb2 f6+ Ke8 Kd6 Qcb3 Rb6 Rd8 Qc4 Ba8 Kc7 Rb8 Rg2 Bh2 f7+ Ke7 f8N Nf6 Rb7 Nh5 Rg6 Rg8 h8Q Re8 h7 Bf4 Rg2 Rg3 Qhg8 Bh6 h8R Bg7 Qcf1 Nc4 Rh2 Bf6 Rh6 Nb6 Rg6 Bg5 Qfc4 Bh6 Ne6 Bf8 Ne5 Rf3 Ng5 Rg3 Bd2 Rd3 Bf4 Qb1 Qgd5 Ba1 Ngf3 Q1b2 Bd2 Nc8 Kb8 Kd8 Qf7 Bc5 Be3 Nb6 Ng4 Re4 Nge5 Nd1 Bg1 Nf2 Rg7 Nc8 Rg5 Nb6 Rg6
2q5/2P2n2/2bR1NrB/pB1NQ3/1b1p1qR1/1nB1Q1NK/1Qkbn3/2qN2r1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 g4 Kf6 f4 h5 Kf2 e5 Kg2 d5 b4 a5 g5+ Kg7 b6 d3 f6+ Kg6 b7 Kf5 c5 Ke4 b5 d4 g6 d2 b6 Nh6 c6 Bb4 g7 Rg8 f7 Qc7 f8N Na6 b8Q Bd7 f5 Qc8 b7 Nc5 f6 Nb3 f7 Ra6 Ne2 Kd3 Nh7 e4 f8B e3 Qe5 Nf7 c7 Rg6+ Ng3+ e2 Nf6 Bc6+ Nd5 h3+ Kh2 h4 Qe1 d1N b8Q Bd2 Bb2 Kc2 Qf2 e1B Qfe3 Bb4 Bb5 Nc3 Ra2 Ne2 Nbc3 Bd2 Nd1 Rh8 g8N Rh5 Re1 Rhg5 Bh6 Rg4 Kh1 h2 Kg2 R4g5 Nf6 h1Q+ Kf2 h3 Bc3+ Kb1 Rg1 h2 Rc2 Qe4 Kf1 Qef5+ Kg2 Rg4 Kh3 Qf4 Rg2 h1Q+ Rh2 Qg1 Rf2 Qff5 Rf4 R4g5+ Rg4 Qf4 Bb2 Qe1 Rc5 Qg1 Bc3 Kc2 Qb6 Bd7 Rc6 Be8 Nb2 Qc1 Rd6 Bc6 Nd1 Rh5+ Kg2 Rh1 Qb7 Rf1 Kh3 Rg1 Qb8 Na1 Ba6 Ba3 Qb5 Bc5 Qa4+ Nb3 Bb5 Bb4 Qa1 Qe8 Qa3 Qc8 Qb2+
1N6/2PqR1K1/3p4/Q1nNNk2/3Bn1p1/rB1rBn2/bB1RR1qr/Qq2b3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 a5 h4 g5 b4 e5 f4 g3 c4 a4 b6 d6 b7 a3 h5 g4 h6 a2 b5 g2 c5 d3 b6 d2 c6 Nd7 b8R Ne7 b7 Qb6 h7 Ng8 c7 Qb5 Bc4 Qb4 Bb2 Qb3 Nc3 Qb5 Nf3 g1R Nd5+ Kf7 f6 Kg6 f7 Bg7 f8B Ra3 Bb3 Rg3 Re1 Qf1 Rc1 a1Q Re2 Qg2 Rc2 Qb1 Qc1 Bf6 Bh6 d1Q Qd2 Rh3 Qa5 Bh4 Bg7 Be1 f5+ Kh5 f6 Kg6 f7 Ngf6+ Ke3 e4 Kf4 e3 f8B Ne4 Bgd4 Rg3 Rcd2 Ndc5 Bh6 Be6 Re8 Bg8 b8N Rh3 Ba2 Qa4 Re7 Qd7 Bb3 Be6 Bg5 Rh2 Bh6 Re8 h8Q Bf7 Rf2 e2 Qe5 Rh8 Bg5 R8h3 Qf6+ Kh5 Ne5 Rd3 Bh6 Qd8 Kf5 Qd7+ Qe6 Kh4 Bhe3 Bg8 Kg6 Bf7+ Kg7 Bg8 Nf4 Kg5 Qc4 Kf5 Qc1 Be6 Ba4 Ba2 Bb3 Qc2 Qa1 Qb1 Rc2 Bb4 Rd2 e1N Rfe2 Nf3 Nd5 Bc3 Rc2 Be1 Rcd2
2b2K2/1BP1n1r1/pQ5R/rN3Q1n/1BQb1rq1/p2qNQ2/1n5k/3B1qRR b - - 0 1 illegal: No possible last move
2qqR3/2pr2N1/q2rb1r1/B1PB4/2B1QQ2/K2N1n1B/2R1pQR1/bk1n1b2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 c4 h5 g4+ Ke6 f4 a5 c5 d5 b6 h3 b7 e3 g5 Kf5 e6 Ke4 f5 a4+ Ka3 e2 b4 h4 f6 d4 e7 d3 e8B d2 g6 Kd3 g7 h2 f7 h3 b5 Bd7 b6 Nh6 g8B Be6 Qe1 Kc2 Bc6 d1R Nc3 Bg7 f8Q Rh7 Na2 Nd7 b8R Rd6 b7 Ne5 Qef2 Nhg4 Bd5 Nf3 Bd2 Ne3 Qf4 Nd1 Ba5 Raa6 Nc1 Bf6 Bg2 Rhd7 Ra2+ Kb1 Nd3 Ba1 Rc8 Rac6 b8Q+ Rb6 Qa8 Rbc6 Kb4 a3 Rc2 a2 Kb3 Bb2 Bf7 a1Q Bc4 Ra6 Qae4 Qa2+ Kb4 Ba1 Bd5 Qc4+ Ka3 Rab6 Bg8 Qa6 Ra8 Nd2 Nf3 Qdc8 Rf1 h1B Nh4 h2 Bc4 Nf3 Bh3 Bg2 Nf5 h1Q Rg1 Bf1 Ng7 Qg2 Bf7 Qg5 Rg2 Qgd8 Bg8 Bg4 Rb8 Rg6 Bgd5 Be6 Ra8 Rbd6 Qh6 Qe7 Ka4 Qcb7 Re8 Qd8 Ka3 Qbc8 Qhf4
3Rb1N1/Bqp1Kn2/RqBQ1nQP/Nb6/1kBr2q1/3rQ3/6pr/2bR3R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 g5 h4 a5 e4 f5 h5 a4 b6 f3 Ke3 a3 e5+ Kd7 b7 f2 b5 f4+ Ke4 a2 Kf5 f3 d6 g3 d5 g4 h6 g2 e6+ Ke8 b6 g3 d7+ Ke7 Bc4 Kd6 e7 Kc5 Ke6 f1B e8B f2 d6 Ra4 Be3+ Kb4 Nf3 g1Q Ng5 g2 Nd2 Nf6 Nb3 Nc6 b8Q Ne5 b7 Nf7 Ba7 Be2 Ne4 f1R Qc2 Qb6 Rd1 a1Q Na5 Qad4 Qa8 Ra3 b8R Rd3 Qd5 Rf4 Ra8 Rh4 Qg5 Rh2 Qe3 Qb2 Qb1 Bh5 Qc2 Ba6 Qb1 Qdb8 d8R Q8b7 Bc6 Bb5 d7 Rg8 Qc2 Rg4 Qb1 Bg7 Qc2 Q2d4 Ke7 Nh7 Nf6 Bh8 Ng8 Nf6 Re8 Rgh4 d8Q Qg4 Qdd4 Bg6 Red8 Bg7 Qcf2 Bh5 Qf5 Bf8+ Ke6 Bd6 Qd5 Bf4 Ke7 Bg5 Qg6 Bf4 Qef3 Bc1 Qh3 Qe2+ Qe3 Rhd4 Bb8 Qf3 Ra6 Qg4 Ba7 Ng5 Qgf5 Be8 Qg6 Nf7 Qd6+
qB2Q1n1/2pbPK2/8/Nr2QQ2/2R1BB2/q3RN1k/nqBnN1pr/1rb5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Ke7 Kg3 Ke6 Kf4 f5 h4 a5 d4 g3 e4 c3 b4 c2 b6 g2 b5 a4 b7 a3 b6 a2 d5+ Kd7 e6+ Kd6 e7 g6 Kg5 Ke5 d6 f4 d7 f3 h5 f2 h6 Nc6 b8B Na7 b7 Qe8 d8N Bh3 h7 Bg4 Rh3 Nc6 Ne2 g1R Nd2 Ra5 Bg2 f1N Re3 Nb4 Nc6+ Ke6+ e5 Rb5 Rb1 a1Q Nf3 Na2 Na5 Nd2 Rb4 Qb2 Qf1 Bf5 Rc4 Bh6+ Kh4 Qc8 e8B g5+ Kh5 g4 Bg6 g3 Qf2 Bh3 Be4 Bf4 Kg6 Qe8+ Kg7 Bf5 Bh3 g2 Bg4 Qc6 Bh5 Qa6 Bg6 Qa8 Kf8 Nb3 Bd2 c1Q Bc2 Bh3 Bge4 Qca1 Ke8 Rb1 Bc1 Nd2 Kf8 Kd7 e6+ Kd6 e7 Bd7 Qf1 Qa3 Kf7 Q1b2 Ba7 Bg5 b8Q Bh6 Qe8 Bf4 Nh4 Ke5 Bb8 Bg5 Ng1 Bh6 Nhf3+ Kf4 Ne2+ Kg4 Rd3 Nb3 Bf4 Nd2 Re3 Kh3 Bg3 Nb3 Ng5+ Kg4 Rd3 Nf6 Bh2 Ng8 Qf5+ Kh5 Nf3+ Bg5 Qf6 Bc1 Re3 Kg4 Bd6 Nd2 Bh2 Rh5 Bg3 Rh2 Bf4 Kh3 Qg5 Nf6 Qd5 Rg8 Qc5 Rg5 h8Q+ Rh5 Qh7 Ng8 Qg6 Rd5 Qd4 Rc5 Qe5 Rb5 Qgf5+
rrr1qNB1/kPQp1N2/1N2b1n1/1KB1b3/p4Qq1/1n3b2/R1n4R/2R1Q1N1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 h5 Kc4 e5 b4 e4 f4 d3 g4 a4 g5 d2 g6 h3 b6 e3 g7 h4 b5 h2 f6 h3 b7 e2 f5 e1R b6 Bd6 f7+ Ke7 f8N Re4+ Kb5 Qe8 c4 Kd8 c5 Na6 b8Q Ne7 g8N Rc4 c6 Ng6 f6 Be5 f7 Nc5 Na3 Nb3 Qe1 d1N Ra2 Ne3 Nh6 Nc2 Be3 Rg8 Qd6 Bb7 c7+ Kc8 Bc5 Bf3 Bd3 Kb7 c8R Rc3 Nc4 Bd5 Be2 Be6 Rc7+ Kb8 b7 Rh8 Nb6 Ka7 Bc4 Rb8 Bb4 Ra8 Bd5 Rb8 Rc4 Ra8 Rh4 Rcc8 Bc5 Rab8 Qc7 Ra8 Ne2 Rcb8 Rf1 h1B Ng1 h2 Rh5 Bf3 Rh3 h1Q Rh2 Bc3 Qeg3 Qg2 Nh7 Qf8 Rc1 Be5 Qe1 Qg4 Bc4 Qc8 f8Q Bed5 Qf4 Re8 Nf8 Qd8 Qf1 Qe7 Qe2 Rec8 Qe1 Bg8 Be6 Qe8 Bd5 Be6 Bc4 Bf5 Bg8 Be6 Nf7
qb2rQ1k/1pN3bq/2n2n1Q/2KR2R1/2b4Q/2Pr1NNB/p2BqnQ1/6R1 b - - 0 1 illegal: No proof kernel
KR4r1/1pNRrqbN/1qR3B1/5nBn/b4p2/3NB3/B2Q1rPk/1Qb1n3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kd6 d4 f5 a4 h5 e5+ Ke7 d6+ Ke6 d7 c5 d5+ Ke7 a5 h4 a6 h3 d6+ Ke6 g6 b3 g7 h2 a7 c4 Ne2 f3 Ke3 f2 Kd4 b2 Kc5 f4 Nbc3 Kf5 e6 Kg4 e7 b1Q e8N Rh6 Nd5 c3 Be3 c2 Nec7 c1B Ra6 Nf6 g8B Qe8 d8Q Nh5 Rc6 Bg7 d7 Rh7 Nf6+ Kh4 Bd5 Qf7 Ba2 Na6+ Kd6 Rb8 a8R Nb4 Qc2 Qbb3 Qb1 Nc2 Kc5 Qbe6 Kb6 Ne1 Rg1 h1N Ka7 N1g3 Rh1+ Qh3 Rg1 Nf5 Rh1 Bb2 Nc1 Kg3 Bd3 f1R Be4 Qh4 Nd3 Rf2 Rf1 Bc1 Rg1 Nh6 Bg6 Kh2 Rf1 Nf5 Rg1 Rh8 Nh7 Rg8 Rf1 Qhf6 Rg1 Nc2 Rd1 Ne1 Qf8 Qa1 d8B Bd7 Qd6 Qb2 Bg5 Rbe8 Rb8 Qb6+ Ka8 Re7 Qdb4 Be8 Qd2 Bd7 Rd6 Ba4 Rd7 Ba3 Rc1 Bab2 Rc5 Bc1 Rc6
nq3r1Q/1prrR1BQ/RbBPbN2/1K3Q2/3R3Q/3pq2q/n3BN2/5k1n b - - 0 1 illegal: No proof kernel
1QkrnRb1/P1NrQ3/3b4/2NNr2p/b1B3qp/NR2QBnq/5B2/2K1n3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 d4 c5 Kd2 e5 f4 h5 a4 b5 f6 c4 f5 e4 g5 b3 g6 b2 g7 b4 d6 b3 f7 Na6 d5 Ne7 g8B Bg7 f8Q Qb6 a5 Rh6 f6 Nc6 f7 Be5 Bg2 Nd4 Qe1 Ne2 Nh3 Qg1 Nf4 Rh7 Ra3 Nc7 a6 Ne8 a7 c3+ Kd1 Qf1 Be3 c2+ Kd2 Kd8 d7 c1R Rh3 Bb8 Rf3 Ng3 Bf2 Rc5 Qh6 Kc7 d8N Be6 f8N e3+ Kd1 Rb5 Nb7 e2+ Kd2 Bf7 N8e6+ Kd7 Bh1 Qh3 d6 Bc7 Qf8 Re5 Qc1 e1N Nbc5+ Kc6 d7 Bd6 Nc7 Rc8 Ncd3+ Kb7 d8Q Bc4 Qff6 Rd7 Qfe7 Bb5 Kd1 Ba4 Qe3 Rb8 Nd2 b1B Kc1 Ba2 Nb1 Kc6 Nc5 b2+ Kd2 Be6 Rb3 Ra8 Na3 b1Q Bg2 Qg6 Kc1 Qgg4 Bh1 Bf5 Bg2 Bh7 Bc4 Bg8 Nfd5 Rb8 Rf8 Rc8 Ncb5 Ra8 Bf3 Rb8 Qa5 Rc8 Qb4 Rcd8 Nd3 Kb7 Nc5+ Kc8 Nbc7 Qf4 Qb6 Qfg4 Qb8#
Q2b2R1/PqnR2p1/1BkrpQN1/2n2b2/1R2B1B1/Br3q2/3Qr1q1/2bKN3 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 c4 b5 h4 d5 a4 Kd7 f4 d4 a5 d3 a6 g3 h5 b3 a7 b2 c6+ Kc7 c5 g2 f6 b4 f7 b3 f5 Na6 h6 Nb4 h7 Qd7 f6 Qd6 Ra4 Bf5 Na3 b1Q Ne2 g1B Bg2 b2 Qd2 Na6 Be4 Nh6 Rb4 Qd5 Nc2 Ng4 Nf4 Nf2 Ng6 Rd8 Rh2 Rg8 h8R Rd6 R2h5 Qba2 Rg5 b1Q Rg3 Qbb3 Ba3 Bh2 Rg4 Bf4 Rd4 Qb7 Rb4 Nh3 Kd1 Ng5 Ne1 Ne6 Rg3 Qd4 Rgh3 Qe3 Rh2 Qf3+ Re2 Kc8 c7 Kd7 c8B+ Kc7 c6 Nec5 Bd7 Re6 Bc8 Kd6 c7 Qad5 Qb2 Bc1 Qd2 Qg2 Re3 Kc6 Re2 Re5 Be6 Qf3 c8Q+ Nc7 Qa8 Qg2 Qe3 d2 Qf2 Bh3 Bg4 e6 Qe3 Bd6 f8B Be7 f7 Bd8 Bd6 Re8 f8Q Re7 Qff3 Rd7 Bf8 Rd6 Qf6 Qf3 Rg8 Qg2 Kc2 d1R Rd2 Qf3 Rdd4 Rd3 Qd2 Qg2 Kd1 Rb3 Bef3 Re2 Be4 Rd7 Bd6 Qf3 Bh2 Rd6 Bg1 Qg2 Bh5 Bf5 Bg4 Qf3 Rd3 Nd7 Bb6 Nc5 Rdd4 Qg2 Bd3 Qdf3 Be4+ Kd7 Rd5 Kc6 Bc2 Rd7 Rd3 Rd4 Bb1 Rc4 Rd7 Rd4 Bc2 Rd6 Be4+
kB5r/PnNrRp1b/r5R1/n1bqQ2p/Q2B4/8/2qN1bBR/3nNR1K b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 g4 b5 Kg2 h5 e4 c5 a4 Kc7 d4 Kb7 a5 c4 e5 b3 a6+ Ka7 e6 b4 e7 b2 e8N c3 d6 c2 d7 b3 g6 Be7 d5 Bd6 g7 Rh7 g5 Nf6 g8Q Bc5 g6 Nc6 d6 Ne4 g7 Rh8 Nc7 Na5 Be3 c1B Rh2 f3+ Kh1 f2 Nd2 b1R Bd4 b2 Bg2 f1N Ngf3 Ne3 Qa4 Nd1 Ne1 Qg5 d8B Bf5 d7 Nd6 Qf8 Ndb7 g8R Bh7 Qg7 Qd5 Qe5 Kb8 Rg6 Ra7 Nc4 Be3 Nd2 Bf2 Bh4 Rc1 Bg3 b1Q Bf4 Ra8 d8R+ Ka7 Rdd6 Qc2 Rde6 Rad8 Re7 Rd7 Ra3 Ra1 Rf3 Bg1 Rf1 Bf2 Ne8 Ka8 a7 Nd8 Qe4 Ndb7 Bb8 Rb1 Qe2 Rb6 Qe5 Ra6 Nc7+
2b1kq1B/pQPr4/K1Q3n1/bQ6/B2pNn2/1RN1r3/2RrqQ2/nN1B3q b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ra2 h5 Kd2 d5 Kd3 e5 g4 h3 f4 h4 b4 h2 c4 h3 c5 Kf7 b6 Qe7 g5 Qe6 c6 Bd7 b5 Nh6 g6+ Ke7 g7 Rh7 g8B Ng4 c7 Ne3 b7 Nc6 b8Q Nc2 b6 Na1 b7 Rf7 Qf3 e4+ Kd2 d3 Kc3 e3 f6+ Kd6 f5 e2 Bb2 e1N Be2 Re7 f7 d2 f6 Nd8 Kb4 d1R Ka5 Nd3 Ka6 Rd2 Bd1 Nc6 Ne2 Nce5 Rf1 Bg7 f8Q Ng6 f7 Bc3 Qe4 Qf5 Rf3 Ba5 Bh8 d4 Rc2 Qg4 Qbe8 Rd8 b8Q Bc8+ Qbb7 Qe6 Qb5 Rd7 Rg3 Qf6 Qg2 Ke6 Qf3 Re8 Qfc5 Ndf4 Qcc6+ Ke7 f8N Qd6 Bc4 Qf6 Ne6 Qf8 Qg2 Kf7 Nc5+ Re6 Re3 Ke8 Rd3 Re3 Qgf3 h1Q Rdc3 h2 Ne4 Qg2 Bb3 h1Q Ba4 Qg7 Rb3 Qf8 N2c3 Qe2 Qf2
4Br1B/p1p2qq1/2qQr2R/KB1nNR2/3QP1bk/2N2b2/3NRn2/1n1Rb3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kf6 Kc3 Kg5 e4 h5 b4 f5 g4 h3 b6 h2 b5 h4 d6 h3 Kb4 Ba6 d5 Bh6 d7 Nf6 d6 Kh4 b7 f3 b6 f2 g5 f4 g6 f3 g7 Qe8 d8N Qc6 g8B Ng4 d7 Be2 Nc3 Na6+ Ka5 Bd2 b8R Be1 b7 Nb4 Nf7 Nd5 Ne5 Rh6 Bb2 Re6 Rf8 Rd8 Rf7 Rf8 Qd4 Bd1 Ba6 f1N b8R f2 Bb5 Nd2 Rf5 f1Q Bf7 Nb1 Be8 Nf2 Ra2 Bf3 Rb6 Bg4 Ba1 Qg2 Re2 Qf3 Bb2 Qf4 d8Q+ Qg5 Qd6 Qg7 Rc2 Qf7 Ne2 Qg7 Nc1 Qf7 Rf1 h1B Re2 h2 Nb3 Bhf3 Nd2 h1Q Ra6 Kg3 Rb6 Qh6 Rh1 Qhg7 Rh6 Nd1 Rb8 Nf2 Rd8 Qgf6 Ba1 Q6g7 Qe3 Qgf6 Ndc4 Nb4 Na4 Nd5+ Qb4 Q7g7 Ng6 Ne7 Rd1 Qgf7 Nd2 Qb2 Qd6+ Qe5 Bd4 Nd5 Nc3 Nf4 Qd3 Qh8 Bf6 Qhg8 Ne5 Nd5 Bh8 Qgg7 Rhf6 Kh3 Qd4 Kh4 Rh6+
4kN1n/n1Q2n2/2r3q1/nrB3nB/K1b4R/1N1Rp3/1Pp2RRB/1Nb2bQ1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 h5 d4 a5 Kd2 c5 Kc3 e5 Kb3 c4+ Ka4 c3 g4 h3 g5 c2 g6 h2 d6 h4 f5 h3 b6 e3 g7 e2 f6 e1N d5 e4 b7 Be6 Qd2 Ne7 g8R Ng6 Kb3 a4+ Ka3 Ra6 Qc3 Qb6 Qb3 Rh5 Rh8 Nf3 Rg8 Nh8 Be2 Ng5 Be3 Nc6 b8B Ngf7 Nf3 Na7 Rg2 Bh6 Bc5 Bc1 Nfd2 e3 Qb5+ Qc6 Nb3 Rb6 Kb4 a3 Ka4 a2 Rf2 Re5 Bh5 Rg5 Rg1 h1N Rgg2 h2 Bc7 Rf5 Bb8 Ng3 d7+ Kd8 Bbd6 h1B Bb8 Qd6 Qf1 Ne4 Qg1 Qg3 Bf4 Rc6 Bb8 Qg6 Bh2 Ne5 f7 Ng5 f8N Nef7 Bb6+ Ke7 d8R Re5 Rd7+ Ke8 d6 Rb5 Bc5 Bh3 Rg4 Bf1 Rh4 Bd5 Rg2 Nh6 Rf7 Bdc4 Rff2 N6f7 d7+ Kd8 Nc3 Bd2 Rc1 a1N Rd1 Bc1 Rd6 Ke7 Rd3+ Kd8 Nd4 Nb3 Nb1 Na5 Nb3 Nd6 Bf3 Ke7 d8Q+ Kf7 Qb6 Ke8 Qc7 Ndf7 Bh5
qR2bBbk/3N3B/1B1Q2QB/nr3R1N/bb2r3/1bp2R1p/1r2QP2/4K1n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 g4 Kg7 a4 c5 g5 e5 a5 b5 g6 h5 a6 b3 d6 e4 d5 c4 a7 b2 d7 b4 d6 e3 Qd2 b3 Ra4 h3 Ra3 h2 Bg2 e2 Qa5 h4 Bh3 Nc6 Bf1 h3 Qa6 Nd4 Nf3 Rb8 a8R Rb5 Nc3 b1B Ne5 b2 Rb8 Bc2 Nd5 b1B Nf6 Bb3 Rg1 h1B Rg5 Ne7 Nh5+ Kg8 f6 Bc6 g7 Bg6 Rf5 Be8 f7+ Kh7 Kd2 e1R Bd3 Ne2 Bb1 Ng1 g8Q+ Kh6 Qg4 Re4 Qe2 Kh7 Ke1 Rg8 Qb6 Kh8 Bh6 Bd5 Bc2 Nc6 Bd3 Be7 f8B Na5 Bb1 Ba4 Raf3 c3 Qa6 Bcb7 Qc6 Qc8 d8B Bdb3 d7 Bb4 Qg6 B7d5 Bb6 Qb7 d8Q Qa8 Qdd6 Rg7 Qg2 Rb7 Nd7 Bg8 Re5 Rd4 Bh7 Re4 Qgg6 Rd5 Rf7 Rd2 Rf3 Rb2 Bc7 Rb6 Ref5 Rb5 Bb6
1nr5/2N1RBK1/1B3n2/r3B3/N1rbNnpP/2q3N1/2b1r1pR/Q1kr1Q1Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 a5 e5+ Kd7 d6 Ke6 b6 Kd5 e6 Ke4 d7 g5 b7 f3 Kg3 f2 d5 a4 b5 a3 b6 c4 d6 a2 e7 c3 e8N c2 Bf4 c1R Rh2 Rh5 Be5 Ke3 Bc4 f1R Bf7 Ra5 Nf6 Rf2 Qf1 Re2 Nc3 Kd2 Na4 Rc4 Re1 Qc7 d8N a1R d7 Bc5 Ne6 Rd1 d8B Kc1 Ne4 Qc6 Nc7 Nf6 Nec3 Bd4 Ne4 Na6 b8Q Rh8 Qb7 Nb8 Qa8 Bd7 b7 Rg8 Be7 Rc8 Bc5 Be8 Bb6 Qc5 Nac3 Ba4 Qa6 Bc2 Na4 Nbd7 b8Q Qa3+ Nf3 Qc3 Qbb7 Nb8 Qc6 Be3 Nfd2 Bf2+ Kg2 g3 Kh3 g2+ Ng3 f4 Ne4 f3 Qd5 Bd4 Qdb7 Ne8 Kg4 Nf6+ Kf5 f2 Kg6 g4 Kg7 Bc5 Qh1 f1N Qd5 Ne3 Qe6 Ned5 Qf5 Bd4 Qff1 Rc6 Qc4 Nf4 Qa2 Rc4 Nf2 Na6 Bd6 Rd2 Re7 Re2 Be5 Nb8 Nfe4 Ree1 Be6 Re3 Bf7 Re2 Qa1+
1nnN1K1b/Qr4n1/R1b5/n5BB/1QP5/1r1QR3/1R1pNp2/b1Q1kqNn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kh4 c4 a5 b4 f5 e4 g5 e5 d3 h3 Kg3 h6 Kf2 h7 d2 b6 f3 b7 f4 h4 g4 h5 g3 e6 a4 e7 g2 Kd6 a3 h6 a2 b5 Bg7 e8N Ne7 b6 Ra3 Ne2 g1B Nbc3 Rb3 Nc7 Qf8 Qc2 d1N Qe4 Ke1 Bh3 f2 Qd3 f1N Rh2 f3 Bg5 B1d4 Ng1 Ng3 Nce2 Nh5 Bg4 Rg8 Ne6 Bh8 Rf2 Rg7 Nd8 Rf7 Rg2 Ng7 Bh5 Bc3 Rg3 Bf6 Rb1 a1N Rb2 Nf2 Rh3 Nh1 Rg3 Na6 b8Q Bb7 Qa7 Bc6 b7 Bd4 b8Q Bf6 Qba8 Nb8 Q8b7 Bd4 Qb4+ Bc3 Kc5 d5 Kd6 d4 Rh3 f2 Re3 Qg8 Qe4 d3 Qf5 d2 Qd3 Ngf5+ Ke6 Bhg7 h8R Nc8 Rh7 Bh8 Rg7 Bf6 h7 Rb7+ Rf7 Qg6 Re7 Qh6 Kf7 Ng7 Kf8 Bc3 Rd7 Qe6 Rd5 Qh3 Ra5 Qf1 Ra6 Ra3 Ra2 Nb3 Rc2 Ba1 Rb2 Na5 Qe7 Ne8 Qb4 Be5 h8Q Rb3 Qhh7 Bh8 Qdc3 Ng7 Qhd3 Ne8 Qcc2 Ng7 Qc1#
Q2rQ1Bb/6B1/1R2Q1B1/K1n1R2b/Rp1brpNn/2nn1R1q/1PNn4/k7 b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 gxh5 Nc6 a5 Nb4 a6 Nxa6 cxd5 Nb4 Qc2 Na2 Qb3 Bf5 Qd1 Bc8 e4 Kd7 d4 Kd6 Kd2 a5 h4 c5 h6 g5 h5 b5 h7 f5 h6 b4 Bh3 c4 Nf3 g4 Na3 c3+ Kc2 g3 Kb3 g2 Ka4 g1B Qe1 c2 Nh2 f3 Ng4 f2 Bg5 c1N Bf6 f1N Bg7 f4 e5+ Kd7 e6+ Kd6 e7 Nd2 e8B Qh4 Qe4 Nd3 Bg6 Ne7 Bf1 Bf2 Rh3 Nf5 Rf3 Qh3 Kb5 Rg8 h8R a4 h7 Nh4 Qe3 Ba6+ Ka5 Nc3 Be2 Rd8 Qe6+ Kc7 d6+ Kc6 d5+ Kc5 d7 Bd4 d6 Bb5 Nc4 a3 Bd1 a2 Na3 Be7 Bb3 Bef6 Bd5 Rde8 d8Q Ba6 Re1 a1N d7 Re7 Qb8 Rd8 Re5 Bc4 Qb7 Bb3 Re8 Bd1 h8R Be2 Qa8 Nab3+ Ka6 Bd1 Rh6 Be2 Bf8 Bh8 Bg7 Be3 Rf8 Kd4 Rf6 Nbc5+ Ka5 Bf2 Qea6 Bd1 Rb6 Ree8 Bg8 Re6 Nb5+ Kc4 Na3+ Kb3 Q6c8 Ka2 Rhh5 Re8 d8Q Bd4 Qd6 Rf8 Qe8 Ka1 Rhf5 Be2 Rf7 Bd1 Ra7 Re7 Rd5 Re4 Qde6 Rf7 Rh5 Rd7 Re5 Rd8 Raa6 Ncb1 Kb5 Be2 Ra4 Nc3+ Ka5 Qh2 Rf2 Rb8 Nh6 Bh5 Rf3 Qh3 Ng4 Rd8 Nc2+
2K1B3/QN1R1RQ1/nB1r1Brb/b1n5/pp1Rn3/k1bP3q/bQ3Q2/3N1b2 b - - 0 1 illegal: No proof kernel
qr3Rbr/3R3r/3R2nb/1B2np2/NnBN2nk/1pK1B1P1/N7/2R1QQ1n b - - 0 1 illegal: No possible last move, all moves rejected
3n3B/2N5/4b1RQ/1rp2RR1/qkr1R1BK/2Qpr1r1/bPBb3Q/r3nN2 b - - 0 1 illegal: No proof kernel
1Q4Bn/1N4Rr/3kpRn1/2p4N/2P4B/NKBnn1n1/Q2r2Nr/2b1q1Rb b - - 0 1 illegal: No possible last move
rb1N3B/Q1RR3b/1K1QpP1N/3N4/1k1n1nR1/1B2Bp2/n1r3n1/1Nbn3q b - - 0 1 illegal: No possible last move
Qk2q2B/3R3b/1KP1R2n/1br3Q1/1pB1r1R1/b4rNp/QnN1r3/2N1rQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 h5 Kd3 d5 a4 Kd7 c4 Kc7 f4 e5 g4 b5 c5 h4 a5 h3 c6 b3 a6 b4 a7 b2 g6 Nf6 g7 Bc5 g8R Be7 g5 Rh5 g6 Nbd7 g7 Nb6 Na3 b1B+ Qc2 Ng4 f6 Nc4 f5 Ba6 f7 Bg5 f8N Nh6 f6 Bb5 f7 Qe8 Bb2 Bc1 Ne2 Rb8 Ng3 e4+ Ke2 e3 Kd3 e2 a8Q e1R Ng6 Re6 f8Q Re2 Nf4 Rhe5 Rg1 R5e4 Rh8 Rb6 g8Q Ra6 Qg5 Ra5 Qa6 Kb8 Rh7 Ba4 Re7 Rc5 Re6 Bb5 Bc3 Ba2 Qca4 Bb1+ Nc2 Ba3 Qff6 Re1 Nfe2 Nb2+ Kd2 d3 Nc1 d4 Qb3 R1e3 Qa2 Rf3 Be2 Rfe3 Qf1 Rf3 Nh5 Rf6 Rg4 Rff5 Ng3 Rfe5 Ke1 d2+ Kf2 d1R Bc4 d3 Qa4 d2 Qa8+ Kc7 Bd4 Re2+ Kf3 R5e4 Bh8 Rde1 Nd4 Bd3 Nc2 d1R Rb1 Rd4 Ra1 Bh7 Rb1 Na4 Rb3 Rde4 Rd3 Nb2 Rd8 R4e3+ Kf4 Rdd3 Rd5 Be4 Ke5 Rc3 Kd4 Bh7 Rd8 Rf3 Rdd6 Rce5 Rd5 Rce3 Kc5 R3e4 Qa7+ Kc8 Kb6 Ref5 Qa5 Kb8 Rd7 Rc5 Qa8+
4R1bq/1Rbb2rQ/1bp1bK2/3RnNQ1/3N1P2/k4rpB/2Q1r2N/B4n1R b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 h4 g5 a4 c6 f4 b3 d4+ Kb4 d6 b2 a5 g3 d5 g2 a6 g4 f6 g3 a7 Nd7+ Kf5 e5 f7 e4 h5 e3 h6 e2 h7 e1R Nd2 b1B+ Ne4 Ngf6 Nf3 g1B Bh3 Re2 Qc2 Ne5+ d7 Nfg4 d6 Nh2 Bb2 Ba2 Rb1 Bb6 Ba1+ Ka3 Rb4 Be7 f8N Bg8 Ne6 Nf1 Ned4 Rb8 Rb2 b4 Nh2 b3 Rb1 Rb7 a8R+ Ra7 Rb8 b2 Re1 b1B Rb7 Bf8 Rd1 Qe8 Kf6 Bba2 d8Q Bae6 d7 Bd6 Qe7 Ra4 d8Q Bcd7 Qf7 Bdc7 Nd6 Rb4 N6f5 Rb3 Qg7 Rf3 Qde7+ Bd6 Qg5 Qh5 Qf7 Bdc7 Qfg7 Bgf7 Q7h6 Rg8 h8R Rg7 Re8 Bg8 Qh7 Qh4 Nb3 Qh5 Rd5 Qh4 Nbd4 Qh5 Qhg6 Qh8 Qh7
1rn3k1/R3B2r/n1p3Kp/1Br3b1/3RQ1Nb/PQ1N1b1R/rqN1R3/r4Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 e5 Ke4 b5 f4 h3 d4 b3 g4 h2 f6 b4 g5 h6 d6 b2 f5 c6 d7 b3 d5 Na6 d6 Nc7 Nh3 Qe8 d8Q Be7 g6+ Kf8 f7 Ra7 d7 Kg7 f8R Nb5 Bg5 Nc7 Bb5 Rh7 f6+ Kh8 Kf5 e4 f7 e3 Nf2 e2 Nd3 e1B Na3 b1R Nc2 b2 a3 Na6 Ra2 Ra1 Qc7 b1R Qf4 Ra8 Qe4 Rb8 Bh4 Bd8 Be7 Bh4 Qf1 Rb3 Qb1 Rc3 Qb3 Bc7 Rb2 Bf4 Ra2 Qd8 Re8 Qa5 f8Q Bfg5 Rb2 Qb4 Rbb1 Bb7 d8R Ra2 Rd4 Rc4 Rbd1 Bc8+ Rd7 Rc3 Rd2 Qd4 Re2 Rc4 Rd8 Qb2 Qf7 Bb7 Rd4 Bc8+ R8d7 Rc3 Rf1 h1R Rf3 Rha1 Rh3 Nf6 Qfc4 Nd5 g7+ Kg8 Kg6 Rc1 Ba4 Rca1 Ra7 Bg4 Bb5 Bf3 Qcb4 Rc4 Qe1 Nb6 Qf1 Nc8 Kf5 Kf7 g8N Kg7 Nf6 Rc3 Ng4 Rc5+ Rd5 Kh8 Kg6 Kg8 Rd4+
bQ3R2/2rQb2n/p1n1qBk1/1r1r2R1/1b2Qrr1/1Kp5/1R3P1N/1B2QNN1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 Kd2 e5 Kc3 c5 g4 h5 b4 h3 d6 e3 d7 h4 b6 e4 g5 e2 b5 e1B+ Nd2 a6 d5 c4 d6 h2 g6+ Kf6 b7 e3 b6 h3 g7 e2 Rb1 Rh7 Rb2 Qe7 d8R Nc6 b8Q Kg6 d7 Qe6 b7 Nf6 g8N Be7 Qe5 Rb8 Nh6 Rg7 Rg8 Nh7 Rf8 Rf7 d8Q Rf4 Qe3 Bd7 Qc7 Rc8 Qd8 Rc7 b8Q Bc8 Ng4 Bb7 Qd7 Ba8 Nh6 Rg4 Rf5 Rf4 Qe4 Rg4 Kc2 Rf4 Bg2 Rg4 Nf1 B1b4 Bf3 e1R Bg5 c3 Bf6 Re3 Qe1 Rd3 Be2 Rd5 Bd3 Rf4 Ng4 Rb5 Nf3 Rd5 Rg1 h1R Kb3 h2 Rg3 Rg1 Bb1 Rg2 Ng1 h1R Rf3 Rh5 Ngh2 Rhg5 Re3 R2g4 Rh3 Nf8 Rh8 Nh7 Rd8 Rg3 Rf8 R5g4 Bh4 Rgd3 Bf6 Rb5+ Qc4 Rdd5 Qd4 Qe5 Qde4 Qe6 Rg5+
NQ5B/bn1R1N1p/1q2N1r1/1k3r1r/2BQ1P1B/4Qp2/2K3bQ/2Rrrnb1 b - - 0 1 illegal: No proof kernel
2B2N1b/KN1n2kp/1n2RQb1/2r2bb1/p2Rb3/qN3P2/R2nr1QB/Q2Q4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 a5 Kc4 d5+ Kc5 d3 g4 d2 c4 h3 b4 a4 b6 h2 b5 d4 f3 d3 f6 Nc6 b7 Qa5 b8Q Ra7 g5 Qa6 b6 Bd7 b7 Nb4 Bh3 Bg7 Nc3 e5 Ra2 e4 Qd8 e3 b8Q e2 Nb5 e1B Ne2 Bh4 Re1 h1N Qe5 Bf5 Qa1 Ng3 Ned4 Nf1 Nb3 Nd5 Re6 Re7 Nd6+ Kg6 f7+ Ngf6 Bb2 Nb6 Nb7 Rg8 Ba3 Bh8 f8N+ Kg7 g6 Bg5 Bb2 Qa8 Be5 Qa5+ Kc6 Qb4 c5 Qa3 Bh2 Re8 Kc7 Re7+ Kb8 Re8 Qe2 d1B c6 d2 c7 Bdc2 c8R d1B Ka7 Bce4 Rc4 Nd2 Rd4 Bdc2 Qed1 Re7 Bg4 Rc7 Bh3 Nfd7 Bg4 Rc5 Bh3 Kh6 Bg4 Rg7 Bh3 Re7 g7+ Bg6 g8Q Bf5 Rf6 Re2 Re6 Bce4 Bg4 Bgf6 Bh3 Be8 Qgg1 Beg6 Qg2 Kg7 Rc2 Ne5 Red6 Bg5 Ra2 Bd7 Rf6 Bdc6 Be6 Bef5 Bc8 Ned7 Re6 Bce4 Qf6+
Q1B3nb/n2bNBp1/R1NB1R1b/2r1N2K/q2r4/r3k1P1/3p1b1b/1NR3Q1 b - - 0 1 illegal: Other
n1K2b2/kr3P2/np1Q2rb/1RBp3n/bRB4Q/NN1q2n1/n5B1/2B1R2N b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 Kd3 g5 Kc4 d3 Kd5 b3 h4 e4 a4 d2 c4 e3 f4 g4 h6 b2 a5 e2 a6 e1N c5 b6 f6 d6 f7+ Kd7 a7 Kc7 h7 Kb7 c6+ Kc7 f5 g3 h5 g2 f6 Nd7 Ke6 Nd3 h6 Rb8 a8B Nf2 Ne2 g1B Ng3 Rb7 Ra5 Kb8 Na3 b1N Rb5 Ka7 c7 Nc3 Bc4 Na2 Rb4 Bh2 Re1 Ne4 Nh1 Bf4 Rb5 Ng3 Rb4 Bg7 f8N Nb8+ Nd7 Bf8 f7 Nf6 Rb5 Rg8 h8B Rg6 h7 Na6 Rb4 Rb8 Bg2 Nfh5+ Bf6 Rb7 h8Q B4h6 Qh7 Rg7 Bd4 Rg5 Bc5 Rg7 Qdc2 d1N Qcd3 Ndc3 Qhe4 Nb5 Qh4 d5 Qg6 Qg5 Qf6 Rg8 Qe5 Qd2 Qd6 Bfg7 Ke7 Bf8+ Kd8 Rg4 Nb8 Be6 c8R Nbc7 Nd7 Na8 Rc7 Qd1 Kc8 Rg6 Bg1 Qd2 Rc5 Bf5 Rcb5 Bc2 Nc5 Ba4 Nb3 Qd3 Bc5
1Q4Qb/2r2p1K/n2NB2P/1r3R2/2N2N1k/4nBBb/B1qn2pb/3bRRb1 b - - 0 1 illegal: No possible last move, all moves rejected
1qRQr3/2PnrQ1n/pB3R1r/1Nn1pn1N/Nb2k1Q1/8/1K4bB/3BnB2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 g4 d5 b4 h5 f4+ Ke4 f6 e6 f7 a6 b6 h3 b5 h4 f5 h2 b7 h3 c5 d3+ Kb2 d4 g5 d2 g6 d3 f6 Qa5 b6 Rh7 c6 Nd7 b8B Bb7 g7 Rh4 Nf3 Rg4 Nd4 Bb4 f8Q Qb5 f7 Ngf6 g8B Rg7 Qd8 Nh7 f8Q Re7 Qf7 e5 c7 Bc6 b7 Qb6 Rg1 h1N Nb5 h2 Ba7 Ng3 b8N h1R Qdh5 Qb7 Bb6 Nf5 Qhg6 Rh6 N1c3+ Kf4 Rh1 Bg2 Na4 Ke4 Ra3 Qa7 Rc3 Qb7 Rc6 Qa7 Rf6 d1N+ Ka2 Ne3 Kb2 Nc2 Bf4 d2 Bh2 Ne1 Qgg7 Nc5 Nd7 Qb8 Qg4+ Ke3 Ka2 d1N Rg1 Nf2 Kb2 Ne4 Rh1 Nf8 Rg1 Ng5 Bh7 Nd4 Bc2 Nf5 Bd1 Ngh7 Qgc4 Bf3 Rg8 Bg2 Qg4 Nd4 Re6 Nf5 Nf6 Nd7 Nh5 Qb7 Qdf8 Rae8 Rf6 Qb8 Rh8 Re6 Qd6 R8e7 Rd8 Re8 Rc8 R6e7 Qgg8 Ke4 Qd2 Ndf8 Qd8 Nfd7 Qg4+
4BbN1/2p1Q2P/1nrpQBR1/6Rb/3q1N2/BK2nbrb/1n5R/NRk4b b - - 0 1 illegal: No possible last move
2r5/1pn1q1B1/b2nQN1Q/1R4NB/RNb1rbPK/3Bb3/3B2pR/3bn1k1 b - - 0 1 illegal: No proof kernel
nqN1K3/Bp1rQ3/2N1bBB1/1P1R3k/n3n3/1b5b/rnpR1Nn1/2Q1R2R b - - 0 1 illegal: No proof kernel
NK1R2R1/1pn4b/1n2rRNn/p1qP3b/3NBB2/b1b3B1/2Q5/2Q1bBkr b - - 0 1 illegal: No proof kernel
bN1n1N1n/5R2/R4r1r/r1R1q1Q1/N2rBk1p/bK1npP2/3B3N/B3b1Q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 Kd6 d4 e5 Kd2 h5 Kc2 a5 b6 c5 g5 h3 b5 c4 g6 h4 b7 e3 g7 c3 b6 h2 Bg2 e4 Bd2 e2 Kb3 e1B Nf3 c2 Nc3 e3 Rf1 h1R Na4 Nc6 b8N Nge7 g8Q Bb7 Qg5 Rh6 Nd7 Qc7 Nh2 Ng6 Be4 Nd8 f3 Bc6 b7 Ra6 b8N Ba8 Ra2 Be7 Nf8 Nh8 Rg1 Rc6 Rg4 Rg1 Rf4 Rg4 Rf7 Rf4 Ra3 Rff6 Qa1 Rc4 Ra2 Bf2 Qag1 c1N+ Ka3 Nd3 Kb3 Be1 Ra3 Qd7 Ra1 Qf5 Rc1 Qe5 Rc3 Kc7 d6+ Kc8 d7+ Kc7 d5 Ba3 Rc2 Kd6 Rc1 Rd4 Rc4 Qf5 Rc5 Ke5 d6+ Rd5 Qg6 Kf4 Q6g2 Rd4 Qg7 Nb7 d8R Qe5 Re8 Nd8 d7 Rd6 Re6 Rd5 Ra6 Rd4 Nb6 a4+ Ka2 Bc1 Qg8 a3 Na4 Bb2 Kb3 a2 Q8g7 a1R Q7g6 Nb7 d8B Ba3 B8a5 Nd8 Bac3 Ra2 Ba1 Rb2+ Kc3 Rb5 Qg7 Ra5 Kb3 Bf2 Q7g6 Be1 Q6g5+
3r1B1k/RR4r1/1KnB1BQ1/Q1N1np1b/4N3/2npN2B/P4brn/3R1b1q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 b5 Kd3 d5 h4 g5 c4 f5 e4 Kf7 h6 b3 h5 b4 e6+ Kf6 e5+ Ke7 c5 g4 h7 g3 c6 b2 h6 b3 c7 g2 Na3 b1B+ Nc2 b2 Ne2 g1N Qe1 Qd6 Nc3 Ra7 Na4 Nd7 Bf4 Bb7 c8R Nf3 Rc7 Nh2 Qa5 Qc6 Bh3 Bg7 Rg1 Kf8 Nc5 Ne7 Rd1 Rg8 h8B Bf6 h7 Bh4 Bf6 Bf2 h8B Rg2 Bg3 Kg8 Bhg7 Ba8 Bh6 Qb7 Bf8 Nc6 e7 Kh7 e6 Nde5+ Kd2 d3 Kc3 d2 Ne3 Bd3 Rab1 Bf1 e8N+ Kg8 e7 d4+ Kc2 d3+ Kc3 Kh7 Nd6 Kg8 Rbc1 b1R e8Q Rb6 Rg7+ Kh8 Rb1 Rb4 Qg6 Rd4 Nde4 Rd8 Rbc1 Qb1 Rc2 Rc7 Rb2 Qa1 Kb3 Rb7+ Ka4 Ra7 Re1 d1N Kb5 Nc3+ Kb6 Neg4 Bf4 Nb8 Nd6 Bf3 Rc1 B1e2 Nde4 Nc6 B4d6 Nge5 Rbb1 Re7 Ka6 Bh5 Rb8 Rf7 Kb6 Ra7 Ra8 Rad7 Ra7 Rf7 Rc2 Qh1 Rd2 Bf1 Rd1 Rc7 Bh4 Rcc8 Rgb7 Rc7 Bg5 Rg7 Bf6
3n4/b1n1Q3/Q3R3/1n1pBRN1/b1rq4/R1Br4/RpB2P1r/bKN1Nk1r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 h4 Ke4 a4 g5 c5 e5 c6 b5 f6 b3+ Kb2 d3 c7 b4 h6 d2 a5 g4 a6 g3 h5 g2 a7 Na6 f7 Ne7 h7 Nc6 h6 Bc5 Nf3 g1R Bg2 Kd3 f8N e4 Ra4 e3 Ne6 e2 Nc3 e1B Rh5 Rh1 Kb1 b2 Ra2 d5 Bh3 Qh4 Neg5 Qd4 Ne2 Bd7 c8Q Nc7 Qe8 Rh2 Qa4 d1R Qe7 Rac8 a8R Nd8 Qa6+ Bb5 Bd7 Bc3 Be8 Ba7 Ne1+ Kc4 Bc6 Rd3 Bf4 Rh1 Be5 Rh2 Kc2 b1N Nc1 Ba1 Be8 Nc3 Bg6 Nd1 Bf5 b3+ Kb1 b2 Bg6 Kc3 Be4 Kd2 Ra3 Rc3 Bc2 Rd3 Ra2 Ba4 Ra3 Rg8 h8R Rg6 h7 Rh6 Re8 Rh1 Nb3+ Ke2 h8B Kf1 Nc1 Rh7 Rh3 Rh6 Rf3 R6h2 Rf5 Rb8 Qed6 Rb4 Re6 Rc4 Qe7 Ne3 Rf7 Nf5 Bhg7 Nd6 Rf5 Qe4 Bc3 Qd4 Be5 Ndb5 Rb8 Nd6 Rbb3 Ndb5 Ra2 Rh6 Rba3 R6h5 Ref6 R5h2 Re6
3N1bR1/1R4Rk/1B1q1BrP/n1n2KRr/QN2p3/4r3/2B1bp1n/3bNr1Q b - - 0 1 illegal: No possible last move, all moves rejected
Rrr2n1b/2Br1q2/3Rn2p/p2P2RQ/1BB1Q3/1B4K1/Qn2b2n/3bN1Nk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 g4 Ke5 d4+ Ke4 b6 a5 b7 c5 e3 f5 d6 c4 d7 h3 g5 f3 b5 h6 g6 h2 b6 f4 g7 c3 Ra2 c2 Na3 Ne7 g8B Nec6 Bg2 Qf6 d8R Qf7 Bd2 c1N Bf1 Nd7 b8B Bg7 b7 Nf8 Bb4 Bg4 Bc7 Rc8 b8Q Be5 Rd6 Nd8 Rb2 Nde6 Bc4 Rh7 Qa4 Bh8 Qbb5 Rb8 Qh5 Nd3+ Kf1 f2 Kg2 f1R Nc2 f3+ Kg3 f2 Qa2 Rc1 Ne1 Bd1 Rd2 f1B Ra6 Nb2 Ra8 Bfe2 Bb3 Qf1 Rd3 Rd7 Bf7 Nc5 Bfc4 Qf7 Rd2 Bg4 Rg2 Nce6 d5 Bgf3 Rf2 Bfe2 Rf6 Ng5 Rd6 Nge6 Nh3 Rc3 Rg1 Rc2 Rg2 Rc3 Ng1 h1N+ Kh4 Nf2 Rg5 Ng4 Kh3 Qf5 Kg3 Rc2 Bc3 Nh2 Bb4 Ke5 e4 Rc3+ Kg2 Kf4 e5 Ke3 Kg3 Qf7 Kh3 Kf2+ Kh4 Nc5 e6 Rc2 e7 Nce6 e8Q Kf1 Kg3 Rc1 Nh3 Rc2 Nf4 Kg1 Nh3+ Kh1 Ng1 Rc3+ Bd3 Rc6 Bdc4 Rc5 Bd8 Rcc8 Bc7 Qf1 Qeg6 Qf7 Qe4+
4bQbr/3rqRnQ/5pb1/3Rnk2/3rN1R1/3QB1NK/1p3P2/N1nRn2B b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 h4 gxh4 d6 Bg4 d5 Bg7 e3 Bd4 exd4 Bc8 a4 Kd7 g4 b5 g5 c5 a5 e5 a6 h5 g6 e4 a7 e3 g7 c4 Ke2 b3 Kf3 b2 Kg2 h3+ Kh2 e2 Qe1 c3 Ra4 c2 Bg2 b4 Na3 b1B Be3 c1N Nc2 b3 Na1 Ne7 g8N b2 Qc3 e1N Ne2 h4 Qc2 Qc7 Qh7 Nbc6 Ng3 Nf5 Bf3 Rb8 a8R Rb4 R8a7 Ne5 Rg1 Ba6 Bh1 Ng7 Rf1 Bb5 Nf6+ Kc8 Rb7 Be8 Nfe4 f6 d7+ Kd8 Rg1 Ke7 d6+ Ke6 d8Q Qe7 d7 Rc4 Qc8 Rc7 d8Q+ Rd7 Qc2 Ba2 Qd3 Bg6 Ne2 Kf5 d5 Bc4 d6 Bg8 Qh6 Be8 Rd4 Bg6 Rg4 Be8 Qh7+ Bg6 Kg1 h2+ Kf1 h3 Qf8 N1f3 Rd5 Ne1 Bg2 h1B N2g3+ Ke6 Kg1 Be8 Kh2 Bg6 Ne2 Kf5 Kg3 h2 Kh3 Rc7 d7 Rc4 d8R Rd4 Bf1 Bf3 Bg2 h1R+ Kg3 Rg1 Kh3 Rf1 Bh1 Rg1 Rg3 Bh5 Rg4 Rf1 Qh6 Be8 Qh7+ Bhg6 R8d7 Nc2 Rd8 Rd1 R8d6 Ne1 Rbd7 Qe6 Rf7 Qe7 Rd8 Rd2 N2g3+ Ke6 Qf1 Rb4 Rd4 Rb7 R8d5 Rd7 Rc4 Rd3 Rc3 Rd4 Rd3 Nh5 Rd1 Ng7 Nh5 Kf5 Qa6 Rd6 Qd3 Rd7 Nhg3+
n3Nr2/bKQ1BNB1/1b2PQ1r/4Bpnn/b1p3B1/2R1Q3/1Rq1k2N/n5r1 b - - 0 1 illegal: No possible last move
K4BRB/1Q1q2R1/2Pr1N2/1r3B2/2RN2n1/3r2pn/bpQb1n1b/2k2nQB b - - 0 1 illegal: No possible last move, all moves rejected
3nRB1r/4b1B1/qBp2bK1/1Qpk1n2/P1r1r2Q/b6R/Q2Nb1B1/2Nn1R2 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 d6 b4 axb4 c5 dxc5 gxh5 Be6 Bb5+ Bd7 Bf1 Bc8 Ke2 Kf7 Ke3 e5 Ke4 g5 d4 b5 h4 g4 f4 g3 a4 b3 h6 g2 h5 b4 d5 b2 h7 b3 f6 Nh6 f5 Nc6 d6 Ba6 d7 Be7 Qd3 Qc8 Ne2 g1B d8B Bd4 Nd2 b1N Bg2 b2 Rh3 Bc4 Qb3 Qa6 Qb5 Re8 h8Q Nc3+ Kf3 b1R Bb2 e4+ Kf4 e3 Kg5 Nd1 Nc1 e2 Qh7+ Kf8 Kg6 e1B f7 Bdf6 Bd4 Rb4 Be5 Ng8 h6 Be2 Qh8 Rc4 h7 Nd4 Rb1 c6 Bb6 Ne6 Bc3 Nd8 Ba1 Bg5 Qhb2 Bgf6 h8Q Rc8 Qh5 Nh6 Qa2 Ra8 Qh4 Rb8 Nf1 Bb4 Nd2 Ba3 Be5 Bd6 Bb2 Ke7 f8B+ Kd7 Ra1 Bde7 Bd4 Kd6 Bc3 Bg5 f6 Nf5 f7 Ra8 Bcg7 Bf6 Bh6 Ke5 Bfg7 Rh8 f8R Rb8 Re8 Kd6 Bf1 Kd5 Bf8 Rb7 Bhg7 Rd7 Rb1 Rd6 Ra1 Re6 Bg2+ Re4 Ncb3 Nb2 Rf1 Nd1 Nc1
R3rR2/1B3bn1/1PBKnqk1/1R4Bn/2Qbp2r/4N1pn/N2Nb1r1/Q6R b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 a5 Kc4 e5 Kd5 g5 h4 g3 b4 g2 c4 e4 f4 g4 c5 d6 f6 a4 f5 g3 c6 a3 h5 a2 b6 d3 h6 d2 b7 Ra3 h7 Ra8 b5 Nd7 b8R Nc5 c7 Bg7 Ne2 g1N Qb3 d1N Bg5 Ne6 Nec3 Nh3 Qc4 Ne3+ Kc6 d5 Nd2 Bd7+ Kd6 d4 c8B d3 Bb7 Qb6+ Bc6 Be8 Rb1 a1R Na2 Qa6 Rb4 Rc1 b6 Rc2 Rb5 Qa4 Nb3 Rg2 Nd2 Qd1 Be2 Qf1 Bb7 Qf2 Bd1 Qf3 Ba4 Qf2 Rc5 Qf1 Bac6 Qa1 Rb5 Qb2 Nb1 d2 Rc8 d1B Nd2 Be2 Rd8 Kf8 f7 Bd4 Rc8 Kg7 f8R Qc3 f6+ Kg6 f7 Nf6 Rd8 Nh5 Rb8 Rg8 h8Q Ra5 Ra8 Nf5+ Kd5 Ra7 Qe5 Nfg7 Kd6 Bf2 Qed4 Qf3 Qdc3 Bd4 Qa1 Rh8 Rg8 Qf6 f8N+ Kf7 Nd7 Kg6 Rf8 Bf7 Rfd8 Re8 Ne5+ Kh7 Ng4 Kg6 Ne3 Ra5 Rb4 Rf5 Rdb8 Rf4 Rb5 Rh4 Rc8 Re7 Rg8 Re8 Rf8
1r1Br2B/N2Q1n1B/np3nQ1/8/qbp1P2N/n1bRN1K1/2k4Q/3bBrR1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 d4 g5 a4 c5 a5 f5 a6 b3 h6 b6 a7 c4 h5 f3 h7 f4 h6 g4 Nd2 b2 Rh3 Kd7 d6 Ke6 d7 Kf5 d5 b1N d6 Qe8 d8N Qa4 d7 Bb4 Nc6 Nf6 d8B Re8 h8B Na3 h7 Na6 e3 Bd7 Ne2 Rb8 a8Q Bc8 Na7 g3+ Ke1 g2 Kf2 Ke5 Qc6 Bg4 Qc2 Bc3 Qd7 Bb4 Qg6 g1B+ Ke1 Bh2 Kf2 Bh5 e4 Bg4 Rg3 Bc3 Bh3 Bh5 Kf1 f2 Kg2 f1R Bf5 f3+ Kh3 f2 Nf4 Bb4 Rd3 Bd1 Ng2 Bf4 Rb1 Be3 Kg3 Bd4 Bg7 Bdc3 h8Q Re1 Qh2 f1N+ Kf2+ Ng3 Bh8 Rh1 Bb2 Bg4 Rg1 Bd1 Nh4 Kf4 Nf1 Ke5 Ne3 Kf4 Rg2 Re1 Rg1 Rf1+ Kg2 Ke5 Qgg7 Kf4 Bh7 Ke5 Qg6 Kf4 Qh1 Nf5 Kh2 Ke5 Neg2 Nd6 Kg3 Nf7 Qh2 Nd6 Re3 Kd4 Rf3 Rc8 Bc1 Rb8 Be3+ Kd3 Bf2+ Kd2 Be1+ Kc2 Rd3 Nf7 Ne3+
6N1/4rB2/1pR3bp/R4B2/1bNBPqRK/rk3N1Q/Q4r2/1nbnnRn1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 a4 Kc5 d4+ Kc4 d6 c5 d5 f5 g6 b6 g5 f3 Kg3 f4+ Kh4 f2 a5 f3 d7 b3 a6 b2 d6 h6 a7 Qf6 d8Q Ne7 d7 Nec6 g7 Nd4 g8R Rh7 e4+ Ne2 Qd4+ Kb3 Na3 b1N Be3 c4 Qd5 Bb4 Bd4 Na6 Bh3 f1N Bf5 f2 Nf3 Ne3 Rf1 Ng1 Rg7 Qf7 g6 Nc5 Qe7 Nd1 d8R Be6 Rc8 Nd3 Rc6 Ne1 Qed7 Qf8 Qa5 c3 Nc4 c2 Rg8 c1B g7 Qd6 Qa6 Qf8 Ra5 Bf7 Qe6 Bg6 Qec8 Rb8 a8B Rb7 Qd7 Ra7 Bb7 Qb8 Bc8 Qd6 Be6 Qe5 Bf7 Ra8 Qh3 Qf4+ Bg4 Ra7 Ra8 Re7 g8N Ra7 Rg5 Rg7 Qa1 Ra3 Raa5 Rh7 Be8 Re7 Bf7 Qc7 Bge6 Qf4+ Rg4 Nc2 Re1 f1R Bf5 Rf2 Rf1 Ne1 Qa2+
4B3/nQ5p/1B2Q1rN/br2r3/KNn1n1P1/B3brBp/3Rk1qR/1R3b1Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 f5 Kb3 a5 g4 c5 e4 h3 b6 c4+ Ka3 c3 b4 f3 b5 c2 b7 f2 b6 f4 Ba6 f1R Nf3 a4 Nh4 f3 Bb5 f2 Be8 Nf6 Rh2 Ra6 Nc3 Nc6 Na2 Na7 b8B+ Qc7 Bb2 c1B b7 Be3 Nb4 Re1 Rc1 f1N Rb1 Nd2 Qc1 Re2 Qh1 Bd7 Bc1 Bb5 Bb2 Bg7 Bc1 Rf8 e5+ Ke7 e6 Kd6 e7 Nfe4 Bd7 Rf5 e8Q Rf3 Qc8 Bf6 Be8 Bd8 Qf5 Re1 Qf7 Bf1 Qg8 Ke7 d6+ Kf6 d7 Qg3 d5 Ba5 d8R Qg2 d6 Ke5 d7+ Kd4 Bg3 Rg6 b8Q Re2 Nf5+ Kc3 Nc2 Kd3 Qe6 Re1 Nb4+ Ke2 Qb7 Nc4+ Ka2 a3 Kb3 a2 Ba3 a1R Nh6 Ra2 Ka4 Ra1 Ra8 Ra2 d8B Rb2 Bb6 Rb3 Rd8 Rb2 Na6 Rb5 Rd4 Rd1 Rd6 Rdd5 Nb4 Re5 Rd2+
2k1Q1b1/Q2r2P1/2K1nr1n/1BN2nB1/pB1b1B2/3qR1N1/2b1rpnR/2N2R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 d4 h5 b4 f6 g4 h3 b6 a4 g5 f3 d6 h2 Kd5 h4 e4 c4 g6 c3 b7 f5 e5 h3 b5 f4 b6 c2 g7 f2 Qh5 f3 Nc3 Nc6 b8B Ra6 b7 Nh6 Nge2 Rb6 Bf4 c1R Ng3 Rd1 Bb5 f1N Nce2 f2 Nc1 Ne3+ Kc5 Be7 d5 Re8 Bc7 Rd4 b8Q Ng2 Qa7 Bf6 Rf1 Ba6 e6+ Kc8 e7 h1B Ra3 h2 Re3 Bb7 Qe2 Ra6 Ba5 Rd2 Bb4 Nd4 Qh5 Qd7 Qf7 Rd8 e8R Re2 Rh8 Ne6+ Kc4 Bd4 Qe8 Nh4 Rh7 Be4 Rh8 h1N Rh7 Bc2 Rh8 Be5 Rh7 Nd4 Kc5 Ng2 Rh8 Qf5 Rh7 Qd3 d7+ Kc7 Rh8 Rf6 Rh7 Ng8 Rh2 Nh6 Qa5+ Kb8 d6 Bd5 Kb6 Bc4 Kc5 Ne6+ Kc6 Bd4 Qa6 Nc7 Qa5 Be6 Qa6 Bg8 Qa5 Rc8 d8N Ne6+ Qc7+ Ka8 Nb7 Rd8 Qa5+ Kb8 Nc5 Kc8 Qg6 Rd7 Qa7 Re7 d7+ Kd8 Nh5 Ng3 Qe4 Ngf5 Ng3 Ref7 Qe5 Ke7 d8B+ Ke8 Bg5 Rd7 Bc7 Ke7 Bd6+ Kd8 Qe4 Kc8 Bdf4 Nd6 Qg6 Ndf5 Qe8+
1nQ1q3/4rpnp/2NkBQNb/1R4b1/1Prr4/5b2/1B2B2K/RnQr1B1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 b4 a5 e4 d5 g4 d3 Kg2 d4 c4 a4 e5 d2 b6 d3 c5 a3 b7 f3+ Kh2 f2 c6 a2 c7 Kd7 e6+ Kd6 e7 Kd7 e8B+ Ke6 g6 Na6 b8N Qh4+ Nh3 Qe7 g7 Nf6 g8Q Ra7 g5 Kd6 g6 Bh6 g7 Nh5 Nc6 Bb7 c8B Nb8 Bb2 Qd8 Bed7 Qe8 Qc1 d1R Be6 d2 Nc3 Ba8 Qf8+ Re7 g8Q Ng7 Bca6 Bg5 Bfe2 f1R Rg1 Rf4 Nd5 Rd4 Nf2 Bh6 Nh1 Bb7 Rb1 a1B Nf4 Ba8 Ng6 Bg5 Na7 Bf3 Nc6 Bh6 Rg5 Rc4 Ba3 Bf6 Rb5 Bfg5 Bb2 Rg1 Nge5 d1N Ra1 Nc3 Ng6 Rd1 Bf1 Nb1 Be2 Qd7 Qc8 Rdd4 Qgd8 Rhe8 Qa5 Rd8 Qa3 Qe8 Qac3 Rd1 Qf6 Rdd7 Kh3 Rcd4 Kh2 Rc7 Na7 Rc3 Nc6 Rcc4 Bf1 Rc3 Rb7 Rc2+ Bae2 Rcc4 Rb5
1q2N1r1/RN2P3/n4b1B/1Nr5/pBB1KbQ1/n2RQr2/bpN1n3/Q4kr1 b - - 0 1 illegal: No proof kernel
2B3b1/3NPQR1/4Q3/1p3Rqb/1p3n2/QrbkBB2/2nrB1rn/N2N2nK b - - 0 1 illegal: No possible last move, all moves rejected
BbRR1Kbb/N2rP3/p1B4Q/nRN3q1/2r4p/B3nn2/B1Q1k3/5nrQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 h5 d4+ Kb4 g4 c5 d5 h4 b6 a6 g6 c3 g5 c4 b7 c2 g7 c3 g6 f3 d6 f2 d7 f4 Ke6 f3 Kf7 Bd6 e5 Qg5 d8R Bg4 e6 Bh5 e7 Bc7 Bb5 f1N Bc6 Kc4 b4 f2 b5 Ra7 b6 Bf3 Na3+ Kb3 Ne2 Ra8 Kf8 Ne3 Nf4 f1N Ne6 Nf6+ g8B Ra7 g7 Bd5 Nb5 Kc4 Ba3 c1R Qc2 Nfg4 Nc5 Ngh2 Rb1 Nf3 Rh2 Rh7 Rc8 Rh6 Rd2 Rg6 Rb3 Be6 Rdd8 Bd5 Be6 Bf4 Bed7 Bg8 Be4 Nc6 b8Q Na5 b7 Bc7 Qa8 Bg3 Bdc6 Bb8 Qg2 c2 Qh2 Bg3 b8Q Rd7 Qb6 Bb8 Na7 Kd4 Rb5 Kc3 Qh1 Kd2 Qab7 Ke1 Q7c7 Ke2 Ba8 Rc6 Bd5 Rd1 Be4 c1B Bd5 Bb2 Be4 Bh7 g8B Bh8 Ba2 Bg8 Bed5 Rc1 Be4 Rg6 Qf6 Rc4 Bec6 Qh5 Qff4 Rg1 Qh6 Qg5 Qch2+ Kd1 Qb2 Ke1 Qb3 Ke2 Qc2+
Rbk2Q1K/1R2pQB1/N7/Q2q1n2/2n2Rr1/b1BB1bp1/b1n1r2P/1rN1B3 b - - 0 1 illegal: No possible last move, all moves rejected
Qb1Q2b1/3bp1BQ/kn1q2nN/1nrr3p/3P2B1/3B2N1/2R2rNK/BR1r4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 b4 h5 f4 c5 Kf2 Kc7 Kg2 Kb6 d6 c4 g5 e3 f5 a4 d7 c3 f6 a3 g6 e2 f7 e1N+ Kh2 c2 g7 h3 Bd3 a2 Nf3 Na6 Nc3 Kb7 b6 Nf6 g8B Rb8 b5 Ne8 Rb1 a1R Ne4 Ng2 Bb2 c1R Ne1 Nc5 Ng3 Nf4 Qa4 Nd6 Ng2 Bg7 f8B Ng6 Be6 Be5 Bg7 Rf8 Bg4 Rf2 Qc4 Ra5 Ba1 Na4 Qc3 Rcc2 Rhc1 Qc7 d8Q Bd7 Qg8 Rcd2 Qh7 Rc8 Rc2 Rd1 Qc4 Qd8 Qe6 Rc5 Qc4 Kb8 b7 Ka7 b8N Nb6 Nc6+ Kb7 Bf1 Bf4 Ne5 Qb8 Nf7 Be5 Kh1 h2 Nh6 Rd5 Qb3 Nbc4 b6 Ka6 b7 Rab5 Be6 Nb6 Qc4 Qc7 Qc6 Bf4 Rc4 Rbc5 b8Q Nb5 Bg4 Qe5 Qf8 Qe6 Rc2 Bb8 Qd8 Qd6 Ne1 Rf3 Kg2 Rf2+ Kh3 h1B Be2 Rg5 Bd3 Bd5 Ng2 Bg8 Kh2 Rgd5 Qa8+
r1QN1K1N/2rp2n1/1rP4R/1QR2p2/bB6/Qqb2Rr1/Bn3QB1/2b1kn2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 e4+ d3 h4 g5 b4 a5 b6 g4 b7 a4 e5 f6 Kg6 f3 Kf7 a3 h6 f2 h5 f5 b5 a2 b6 g3 e6 g2 e7 Nf6 e8B Rg8 h7 Ng4 h8R Na6 b8Q Qh4 h6 Qh2 h7 Ba3 b7 Qh6 Bd2 Qc6 Qf3 Be7 Na3+ Kd4 c4 Qa4 c5 Rg6 Qa7 Bg5 b8Q Rb6 Rc1 a1B Nh3 g1R Nc4 Nb4 Ne5 Rg3 Kf8 Qb3 Nf7 Bc3 Nf4 Ba6 Rh3 Bb5 Ng6 Ba4 Bg2 f1N Nd8 Nf6 Bf7 Ne8 Qf2+ Be3 Be1 d2 c6 Kd3 Rh6 d1R Rg8 Bed2 h8Q Ng7 Qc8 Rb7 Qab8 Rc7 Qb5+ Qc4 Rc2 Rb1 Qh7 Bc1 Nh8 Nh5 Rg4 Ng7 Rf4 Rb2 Qbb8 Qb3 Rf3+ Ke4 Qg6 Nd3 Qd6 Rb1 Qa3 Nb2 Rf4+ Kd3 Bg8 Bf6 Rc5 Bc3 Bd2 Kc2 Qb5 Kd1 Be1 Bd4 Bb4 Bc3 Qd4+ Ke1 Rf3 Raa7 Qg1 Ra8 Qf2+ Kd1 Qa1 Qa2 Ba3 Nd3 Qba6 Rb6 Qb5 Nb2 Bb4 Qe6 Qa3 Qc4 Qd4+ Ke1 Be6 Qd5 Qg1 Qd1 Ba2 Qb3 Qf2+
1RNbk2r/BPNrp1r1/p1Q2nN1/2R5/1Q3n2/1n1q1B1b/1N2R2K/3Qb1r1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 h5 g4 c5 b4 a6 f4 h3 Kf2 h4 d6 c4 g5 c3 d7+ Kf7 g6+ Kf6 f5 h2 Kg2 e3 d5 c2 d6 e2 b6 e1R b7 Bg7 b5 Re5 b6 Qf8 d8R Nh6 d7 Re4 Nh3 Qf7 Be3 c1B Na3 Qc4 Nf2 Ra7 Nb5 Re6 Nd6 Re5 Ra2 Bd2 Nd3 Be1 Nb2 Nc6 b8Q Ng8 Be2 Nd4 Bf3 Qd3 Bg1 Bh6 g7 Nb3 Re8 Be3 d8N Ra5 Ne6 Rd7 Nc7 Ra4 b7 Bb6 Bf2 Bba5 Ba7 Rg4+ Kh3 Bb6 Rf1 h1N Kh2 h3 Qa8 Nh6 g8Q Ng3 Qc4 Nh5 Qb4 Nf4 Rf8+ Kg7 f6+ Kg6 f7 Ng8 Re8 Nf6 f8N+ Kg7 Ng6 Rg2+ Kh1 h2 Rf2 Rg4 Rc2 Rg3 Rc5 Rg2 Ncb5 Bd8 Qb8 Rg5 Qc7 Rg4 Qc6 Rg2 Ndc4 Kf7 Nc7 Rg3 Nb6 Rg4 Nf8 Rg7 Ng6 Ne6 Kg2 h1R N2c4 Rf1 Re2 Rfh1 Nb2 Rf1 Bh5 Nf4+ Kh2 Rg1 Rg8 Rd4 Re8 Bh3 Bf3 Rd7 Nca8 Bc7 Rb8 Bd8 Nc8 Ke8 Nc7+
N3k1R1/P1brNn2/bnb3qn/1QN1rBBr/6p1/1BQ2RQ1/K2Qp3/n7 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 b5 f4 e5 h4 g5 a4 d5 c4 e4 Kc2 b3+ Kb2 b4 c5 g4 a5 e3 c6 d3 a6 d2 h6 d4 h5 d3 a7 Qd5 h7 Qd8 c7 Bb7 c8B Bg7+ f6 Nh6 f5 Qe7 Nf3 Na6 Na3 Rb8 Nb5 Qd7 Ng5 Qf7 Ne6 Ra8 Nc5 Nb8 Ra3 Qg6 Qf3 d1R Qg3 d2 Bc4 Nf7 h6 e2 Nc7+ Kd8 Kb1 b2 Rf3 Nd7 Ka2 b1N Bb3 Na3 Rh4 Rb8 Na8 Bc6 Rh1 Re8 h8Q Nb6 h7 Nc2 Rh5 Rh1 Rg5 d1N Qf8 Na1 h8Q Rb7 Qfd6+ Rd7 Qd2 Ne3 Qhh3 Nh6 f7 Be5 f8Q Nec4 f6 Bc7 f7 Ne5 Qfd6 Re7 f8N Nef7 Qde5 Ke8 Qec3 Re5 Qh5 Qe4 Rg7 Qg6 Qf5 Rh5 Qfg5 Qd6 Ng6 Qe6 Ne7 Qg6 Ba4 b3+ Ka3 b2 Ka2 Rd8 Bf5 Rd4 Bb3 b1B+ Ka3 Bd3 Ka2 Bd6 Qge3 Bdb5 Qed3 Ba6 Qb5 Rd3 Qde1 Rd4 Bg5 Bc7 Qed2 Rd7 Rg8+
2NB4/Pr1k1NQQ/1Q1r3N/RB3r2/pqR2b2/n1R1b2p/5R2/1rn1K1nb b - - 0 1 illegal: No proof kernel
4N1kR/n1nQ4/nr3R1q/1b1n4/1B1P3p/QB3rbq/KQB1pB1N/1n4N1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 Kd2 c5 Kc2 h5 Kb3 e5 f4 a5 g4 e3 b6 h3 g5 a4+ Ka3 h4 b4 e4 b5 e2 b7 e1N f5 h2 b6 c4+ d6 e3 f6 e2 Ka2 c3 d7 c2 Qd2 a3 Qd3 Bd6 Bh3 Nc6 b8Q Ra6 b7 Rb6 Be3 Ng2 Nd2 Na7 Bf2 Qf8 d8Q Ne3 Bf5 Nd5 Nf1 Bg3 Qd7+ Nge7 g6+ Kg8 g7 Nc7 Qf3 Ned5 Qe3 c1Q Bc2 Qd2 Qb3 Qd3 Qa8 Qe3 b8N Ba6 Qb2 Bb5 Na6 Rh5 Rc1 Rf5 Ra1 Qc8 Rc1 Qh6 f7+ Kh7 f8B Kg8 Bb4 Rf7 Kb3 a2 Rb1 a1N+ Ka2 Rf3 Rc1 Ne8 Nc7 Nb3 Ra1 Nd2 Rb1 Nef6 Ne8 Qc3 Ra1 Nc7 Rc1 Nfd5 Rb1 Nc8 Qaa3 Na7 Rc1 Qd3 Ra1 Kh7 Rc1 Nb1 g8B+ Kh8 Bb3 Qf5 Bh7 Qh3 Be4 Kg8 Rc6 Rf7 Rf6 Rf8 Bec2 Rf7 Nf3 Rf8 Rg1 h1N N1h2 Rf7 Be3 Nf2 Rc1 Ne4 Ng1 Nc5 Bf2 Rf8 Rf1 N5a6 Rf7 Bc4 Rh7 Bd3 Be3 Bc4 Rf6 Bb5 Bf2 Rf7 Re6 Rf4 Rf6 Rf3 Rh8+
rq2Q3/RB1Nb1KN/Q1qB3B/2r2RQ1/1pq3Q1/q5Np/3kP2q/1bn2n2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 a4 h5 d4 b5 g6 c5 g7 b3 g5 h4 d6 f3 g6 b2 d7 h3 a5 f4 a6 b4 d5 f2 a7 f3 d6 Ne7 Kf6 Nbc6 g8N Nd4 g7 Nb3 Qd2 Rh5 Nc3 b1Q Qg5 Qb2 Bg2 Qa3 Ne4 f1Q Ng3 f2 Nf3 Kc3 Ne5 c4 Bb7 Qg2 Rf1 Qh2 Qg4 Qc7 d8B Nf5 d7 Qb8 Bh6 Nc1 Be7 Ne3 d8Q Bf5 Qe8 Bb1 Nd7 Rc5 Bd6 Be7+ Kf7 Kd2 Ngf6 c3 g8Q c2 Kg7 Rc8 Nh7 Rc5 Rg1 f1Q Rg2 Qf3 Rf2 Qd5 Rf4 Qc4 Qd5+ Nd3 Qdg5 c1Q Ra2+ Q1c2 Ra1 Nc1 Ra2 Qd8 Ra1 Nf1 Ra2 Rb8 a8Q Qc8 Qa6 Ra8 Ra1 Qb8 Qb6 Qe3 Ra7 Qa3 Qc6 Qca4 Qa6 Qc6 Rf5+
3N4/2rRR2b/bKQ5/1Q2pNP1/k3q1Qb/4Nbp1/3bBnRB/nN1qr3 b - - 0 1 illegal: No possible last move, all moves rejected
1BN1b3/1BN1q1bK/5QB1/1pnn4/P1k4n/3R1n1Q/RQpr3n/1r1qQ1R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 h5 Kg6 b5 d4+ Kd6 a4 e5 g4 c5 f4 c4 g5 e4 f6 h3 f5 h2 f7 b3 f6 b2 Bg2 h4 Nc3 b1N Qe1 e3 Nge2 h3 Ng3 e2 Ra2 Rh4 Rg1 h1N Nf5+ Kd7 d6 Ke6 d7 h2 Bf4 Nd2 Nd5 c3 Nd6 Bg7 f8Q c2 f7 Qe7 d8R Nf6 Qh8 Nf1 f8Q Bd7 Nc8 Na6 Bb8 Nhg3 Qh6 h1Q Qfh8 Rg4 Qh3 Nh2 Be4 Nc5 Bd3 Nfh5 Kh7 Nf5 g6 Nf4 Be4 Be8 Nc7+ Kf6 d5 Ke5 d6 Kd4 d7 Nd5 Bg2 Kc4 Be4 Nh4 Bf5 Bf6+ g7 Rd4 Bg6 Rd1 Qeg3 Rb1 Qe1 Qf8 g8B Bg7 Be6 Qe7 Bg4 Ra6 Bf3 Rd6 Bfe4 Nf4 Bb7 Rd2 Qf8 Nd5 Qf6 Qf3 Qb2 Qf1 Qf2 Qd1 Qe1 Bf7 Rg8 Be8 d8Q Qd6 Qdf6 Qe7 Qef2 e1N Rf8 Bf7 Rd8 Nef3 Qe1 Be8 Rd7 Ne3 Rd3 Nd5 Qee5 Bd7 Qee6 Be8 Qe1
RN1n3Q/b1B2r2/k3nRPK/8/pp2BN2/nb1rn1N1/nqqR3Q/1N2Q3 b - - 0 1 illegal: No proof kernel
NBKN2qQ/2Q1qrB1/6p1/QNbRrR2/1k1N1qPq/2pq1b1n/3nR3/8 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 g3 b5 axb5 h4 Bg2 h3 Qc2 hxg2 Qa4 Bh3 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 h4 f5 e4 c6 b4+ Kc4 d4 f3 g4 f4 b6 g6 h5 a4 b7 c5 d6 a3 d5 f2 b5 f1Q d7 f3 Ke6 a2 e5 f2 h6 Na6 b8B Be7 b6 Bb7 d6 Qe1 h7 f1Q Rh2 Qff8 Bh6 Bf3 b7 Qh4 Na3+ Kb4 Ne2 g1Q Bg7 c4 Qd5 c3 Nd4 Nf6 Re2 Qgf2 Nab5 Ra7 Rf1 a1Q Qa2 Qde8 d8R Ne4 d7 Qb1 Qa1 Rg8 h8Q Qd3 Qa2 Qfe3 Qa1 Qff4 Qa5+ Kc4 Rff2 Nb4 Rf1 Nd2 Rff2 Bg5+ Kd6 Bh6 Kc7 Nd5+ Kc8 Qe6 Rf1 Re8 Rff2 Qg8 e6 Bg5 e7 Bf6 Rf1 Be5 Rff2 Bd6 Rf1 Bc5 Rff2 Rf8 e8N Rf5 Nec7 Qee7 Na8 Re5 Rf1 Qfg3 Rff2 Nf4 Rf1 Nh3 Rff2 Bc6 Rf5 Qgf3 Bc7 Qfe4 b8Q Qf4 Qb7 Bf3 Bb8 Ra6 Qbc7 Rf6 Re8 Rf7 d8N Qef8 Re6 Qe8 Rd6 Qee7 Qa1 Kb4 Rd5 Qef6 Qa2 Qe7 Qaa5+
N1bk1BbQ/3r2r1/1N1p1B2/2rPQq2/Kn2n1R1/1B3R1q/N4p1r/r3Q2N b - - 0 1 illegal: No possible last move, all moves rejected
5r1R/Q1KB2N1/1p2PR2/r1B1pb2/1nR1Q2q/bb1Q2kN/n2B1qb1/5B1b b - - 0 1 illegal: No proof kernel
2qQrqqR/2QQ1Rp1/1R2nrn1/1B6/4k3/q2B1p1N/1NBQ2Pb/3K1bq1 b - - 0 1 illegal: No possible last move, all moves rejected
bN1r4/Nn1q2p1/r1r1k1r1/p1B5/4R2n/Rr1QNQP1/1b1Q4/RqB2KR1 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 g3 b5 axb5 h4 Bg2 h3 Qc2 hxg2 Qa4 Bh3 Qd1 Bc8 b4 f5 h4 Kd7 e4 c5 d4 c4 d6 c3 b6 c2 d5 a6 e5 f3 e6+ Ke8 b5 Nh6 Bb2 c1Q e7 Kd7 e8R f4 b7 Qc4 b6 Ng4 h5 Nh6 Nc3 Qb5 Nh3 Nc6 b8B Na5 b7 Nf5 h6 Nh4 Bc1 Qb1 Ba7 f2+ Ke2 f1R Nf2 Rg8 Ng4 Rf3 Nb5 Rb3 Re4 f3+ Ke1 Qe8 Ne3 f2+ Ke2 f1R b8N+ Kd8 d7 Bb7 Bd4 Rf6 Qf1 Bb4 Qf3 Bc3 Re1 Qe6 Ba7 Ke7 d8Q+ Kf7 d6 Bb2 d7 Bd5 Bd4 Ra7 Rd1 Ba8 Rh1 Nb7 Qa5 Qg4 d8Q Re8 Qe1 Re6 Bc5 g1R Qf2 Rd1 Rg1 Rdd3 Kf1 Red6 Qd2 R3d5 Rea4 a5 R4a3 Raa6 Na7 Rdc6 Qd6 Rd4 Qd5+ Qe6 Qdf5 Rd8 Qfd3 Qd7 h7 Ng2 h8R Nh4 Rh5 Ke6 Rg5 Rh6 Rg4 Rg6 Re4+
4bq2/1Q1N1rr1/1bR2BBK/nQ3b2/BNRq3k/7p/P1b1R1p1/1N1Rn1n1 b - - 0 1 illegal: No proof kernel
R1Q2r2/q1B1BRn1/4b1r1/1N1kN1N1/1r5q/qP1pR2B/2pn1r1N/4b1QK b - - 0 1 illegal: No proof kernel
1K1br3/R1RrkNB1/1RQ1Q2B/1r1q1n2/1qQnNrB1/p4B1b/5pP1/2b5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 a5 b4 a4 e4 c4 d4 c3 b6 c2 b5 h3 d6 h4 d5 f3 b7 h2 d7+ Ke7 b6 h3 d6+ Kf7 Nd2 f4 Be2 f2 Bf3 f1R Qe2 Rd1 Qc4+ Kg7 Bg4 Nf6 Ngf3 Rh7 Ng5 f3 Nf7 Na6 b8B f2 b7 Qb6 d8Q Rh4 d7 Nd5 Qe8 Ne3 d8Q Nc7 Qdd3 Nf5 Qec6 Ne6 Bd6 Rh5 b8R Qb4 Rb6 Be7 Ra3 Bd8 Bf8+ Kg8 Bg7 Ned4 Kd5 Rh4 e5 Bd7 Rf1 h1R e6 h2 e7 Rg1 e8B h1Q Bf3 Rf4 Ne4 Qh5 Re1 Bc8 Bd7 Rb8 Be3 c1B Re2 Rge1 Rc2 Rh4 Beh6 Rf4 Qg6 Rd2 Qcc6 Re3 Qdc4 Rb7 Rb3 a3 Rcc3 Rb2 Ra6 Ree2 Ra7 Rb1 Be6 Rd7+ Ke5 Qf8 Rb6 Rb5+ Bd5 Qc5 Bg4 Qb4 Qb3 Rb7 Qd7 Bd2 Bh3 Be3 Ng3 Qf3 Rcc6 Rc7 Qc4 Nh4 Rc5 Qe4+ Kd6 Bc1 Bc6 Qf5 Bf3 Re8 Ne4 Qh5 Bhg4 Qg5 Bh5 Rb7 Qc7 Bh3 Bhg4 Qe5+ Kd7 Qd5+ Kc8 Nhf5 Qcd6 Rd7 Rcc7 Qb1 Qdc6 Qb4 Be5+ Ng7 Kb8 Kf8 Ra6 Ke7 Raa7 Ngf5 Bh8 Rc5 B8g7 Rb5 Qge6+
n1r1q1k1/n4RNB/K7/B6R/1bQ1Pp1n/N2Rp2n/b2Br3/qN1QNq2 b - - 0 1 illegal: No proof kernel
3Q1KB1/2nb2n1/1B4kr/R2b4/bP2RN2/Npbn2q1/1pNB1Rr1/1q4RQ b - - 0 1 illegal: No proof kernel
1K1N1BB1/3N1rrB/q1b5/q2RnQqP/5R1p/1b4QQ/1qk1n1pN/2b3B1 b - - 0 1 illegal: No proof kernel
q1Qr4/4Q1QN/b1R1q1NQ/2B2qP1/B1p2n2/b1kp1K2/R4Nr1/1Rn1q2b b - - 0 1 illegal: No proof kernel
2knB3/1Q1R1r1Q/3n1q2/b2b1P2/1qpbRbQ1/3Qp2r/2K2Nr1/BB2RN2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 Kd2 c5 f4 h5 b4 e5 g5 e3+ Kc2 e2 g6 e1B g7 h3 b6 c4 b7 e4 f5 e3 d6 h2 b5 h4 b6 h3 d5 a4 Qg4 a3 Nd2 a2 Bb2 Qg5 Bd3 Ra7 Nf1 Nh6 g8B Nc6 b8Q Nf7 b7 Ba5 Re1 Bh6 Ba1 Qf6 Bh7 Re8 Bg6 Bf4 Bh5 Kd8 d7 Nd6 Bf7 Rf8 Be8 Rf7 Qa8 Kc7 d8R Be6 Be4 Ra6 Qa7 Rb6 Kd1 Rb2 Bb1 Rg2 Kc1 Rg3 Kc2 Rg2+ Ne2 Rg1 Nc1 Rg3 Rg1 h1R Nd3 h2 Nf2 Rh3 Rg2 Rg1 Rg3 h1Q Rf3 Be5 Rf4 Rg2 Re4 Qg1 Qa6 Bf4 Rd7+ Kb8 Qb6 Nd8 Qc7+ Ka7 b8Q+ Ka6 Be5 a1B Qb3 Bd4 Qd3 N6b7 d6 Bd5 Qc6+ Ka7 Qb6+ Kb8 Qbb3 Bc5 Ba1 Kc8 Qb2 Qg6 Qg7 Qf6 Qh7 Bd4 Rc1 Be6 Re7 Bdc3 Nd2 Qe1 Nf1 Nc6 Rd1 Bd4 d7+ Kd8 Rc1 Nd6 Rd1 Qb4 Re1 Rf8 Rg7 Bd5 Rf7 Kc7 Rg7 Kb8 Rge7 Rf7 d8Q+ Nc8 Qd7 Nd8 Qc6 Nd6 Qb5+ Kc8 Rd7 Rh6 Qb6 Rh3 Qb7+
1B2Nb2/Q1RQ1N1B/2B4r/1KR1pb2/1BPrb2n/3nqp2/1r1q3N/3Q2kb b - - 0 1 illegal: No proof kernel
bn4Nr/1Qb1Rk2/3Q4/1Bp1b3/1q2R2Q/qN1R1rqn/b2BP1p1/3K2NR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 g5 b4 c5 d4 a5 h5 f5 b6 g3 b7 f3 h6 f4 b5 g2 b6 g4 d6 f2+ Kd2 a4 h7 g3 d7+ Kf7 d5 f3 d6 a3 Qe1 a2 Kd1 Nf6 Nd2 Ng4 Nb3 Ra3 Bd2 Qh4 d8Q Be6 d7 Bd6 Qc8 Be5 d8R Bc7 Rd3 Bd5 Rc1 a1B Rc4 Bae5 Re4 Be6 Qd8 Qh3 Qd6 Bc4 Nd4 Ba2 Nb3 Qh4 Nh3 g1Q Bg2 Qh2 Ng1 f1B Bh3 f2 Bg2 Na6 b8N Q2h3 Nd7 Nb8 Bf3 Bg2 b7 f1Q Nf6 Qf2 Ng8 Qd4 Qf2 Qb4 Qe1 Nc6 b8Q Nf2+ Kc1 Qf4 Qb7 Nb8 Bg4 Bf3 Bd7 g2 Bb5 Qhg3 Kc2 Nh3 Kd1 Qfg4 Ree3 Bc6 Re4 Q3f3 Qh4 Qgg3 Qc8 Ba8 Qb7 Qe3 Nf6 Rc8 h8R Rf8 Rh6 Rh8 Ng8 Qef3 Re6 Qe3 Rd5 Qec3 Rd3 Qb2 Na1 Rc3 Nb3 Q2a3 Rdd4 Re3 Rd3 Rf3 Re7+
1NQ1Qr1q/5BR1/3R3k/RnpKNb1b/5p2/3R1Pq1/rB4bn/1B1n2bQ b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 cxd5 exd4 Kd2 h5 Kd3 a5 Ke4 c5 g4 d3 b4 a4 f3 a3 g5 f6 b6 Kf7 d6 Kg7 d7 a2 g6 h3 b7 d2 b5 h2 b6 h4 Kd5 h3 e4 f5 e5 f4 e6 Ra6 e7 Nc6 b8R Nh6 e8Q Qh4 d8R Qg3 b7 Bf5 Bd3 Nd4 Ne2 Ng4 Bb2 Kh6 g7 Nb5 g8B Bg7 Rg1 h1B Nd4 h2 Bf7 Bg2 Nc6 h1B Na3 Nh2 Bb1 Rf8 Nc4 Bgh3 N4e5 B1g2 Rd6+ Bf6 Ra8 Bhg4 b8Q Bh5 Qbc8 Ra5 Qe1 d1N Nb8 Ra3 Ra5 Ra4 Bc2 Ra3 Rc1 a1Q Bb1 Ra4 Rc3 Ra2 Ng6 Bd4 Rd3 Bgh3 Rg2 Bf2 Qh1 Bg1 Ba3 Qh8 Bb2 Qf2 Rg4 Qg3 Rg5 Bg2 Ne5+ Bhg6 Rd8 Bh5 Rg7 Ra4 Rd7 Ra2 Rd6+
2Q5/1n1rN3/5N2/2pN2Bq/rB1p4/1rbkrn1B/RQ2PBqQ/2Kn2Rb b - - 0 1 illegal: Other
1b1k1B1n/B1rbB2R/8/qQpB2K1/pq3QP1/1Qnb3b/4N2q/RN1r1R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 g4 h5 d4 f5 e4 h3 b4 h2 d6 a4 b6 h4 b5 h3 b7 Na6 b8B Rh7 b6 Bd7 b7 Nb4 d5 Ne7 e5 Ng6 e6 Na2 e7 Nc3 Qb3 Nh8 Ne2 Qa5 Ba7 Rd8 b8Q Rf7 Rg1 h1Q+ Bg2 h2 Rf1 Qg1 Bd2 h1Q Be1 Rh7 Bg3 Qd4 Q8b5 Qdb4 Q5c4 Kf7 e8Q+ Kf6 Qb5 Qh2 Qe3 Kf7 Qd4 Ke8 Qd2 Bg7 Qe3+ Be5 Qd2 Bc6 d7+ Ke7 Bh1 Bb8 Qc1 Re8 d8R Bd7 Rc8 Rd8 d6+ Ke8 Rc7 Re7 Bg2 Rf7 Kf2 f3 Ke3 f2 Bd5 f4+ Kf3 Rc8 Rb7 Rc7 Qe3+ Kd8 Qd2 Bc6 d7 Re7 Qc1 Re4 Qe3 Rd4 Qe5 Rd1 Qf5 Ke7 d8B+ Ke8 Bg5 Bd7 Bh6 Ke7 Bf8+ Kd8 Rg1 f1B Qe5 Bh3 Rf1 Rc1 Qd4 Rd1 Qdc4 Na2 Ke4 f3 Kf4 f2 Kg5 Nc3 Bgd6 Bg2 Qf4 Be4 Rg1 f1B Rh1 Bh3 Rf1 Rc8 Rc7 Bd3 Rb7 Be6 Re7 Bd7 Rh7 Rc7 Bde7+
1B2q3/1Rr1n2K/R1N3Q1/1p3N2/1QR1NPN1/2bq1p2/bbQ1r1B1/n1k2q1b b - - 0 1 illegal: No proof kernel
3n2q1/1RB2r1q/1BBK1R2/1pr3p1/k1RNr1P1/4b2b/bQ3N2/1N2bnNQ b - - 0 1 legal: proof: e4 a5 b4 axb4 c4 f5 exf5 d5 cxd5 h5 g4 h4 Qf3 Be6 Qh3 Bc8 Qg3 hxg3 Ke2 Kd7 Kf3 c5 Ke4 g5 Ke5 b5 a4 c4 h4 c3 d4 g2 f4 c2 f6 b3 d6 Kc6 d5+ Kc5 f7 Kb4 f5 b2 f6 e6 a5 Rh5 d7 Qe8 d8N Kb3 d6 Ba6 d7 Ra7 Bf4 c1R Nc6 Ne7 d8B Nf5 Bb6 Bb7 a6 Rh8 h5 Bc5 f8R Ng3 h6 Be3 f7 Rc5+ Kd6 e5 h7 e4 Nb4 Nc6 Nd3 Nd8 Ra4 Bd5 Be2 Nf1 Nf2 Rg8 h8Q Rac7 Ngh3 g1Q a7 Qh2 Ng1 Qh7 a8Q Re7 Rd4 Rg7 Bf3 Bc4 Qc6 Ka4 Rh6 Ree5 Rf6 Re7 Rg8 Ree5 f8N Rf7 Rgg6 Ree7 Ne6 Qeg8 Rg7 Re8 Nd2 b1B Bh1 Ba2 Nb1 Bd2 Qb7 e3 Bc6 e2 Re4 e1B Nd4 Be3 Qa8+ Ra7 Rb7 Be2 Bh2 Bf3 Ref4 Bg2 Bg3 Qhf7 Qh1 Bh3 Qc8 Qfg6 Qf5 Q6h7 Qc2+ Qb3 Bh2 Re4 Qb2 Qbg8 Rf3 B3d2 Rc3 Be3 Rc4+ Bb4 Rg7 Ra8 Kd7 Ra6 Bb8 Ra7+ Kd6 Rb7 Re7 Ra7 Ree6 Rf7 Re7 Qhg6 Rb7 Q6h7 Rc3 Ba5 B8c7 Bb4 Rc2 Be1 Rc4+
2Q3QB/7K/Qb2r2p/5nr1/1N3nbR/1PBqqp1q/2NRn1kB/1q1BN3 b - - 0 1 illegal: No possible last move
3Nn1R1/1nr4N/7p/q2Q4/3bQPK1/k1B2R1Q/2nrpBb1/r1BBnNq1 b - - 0 1 illegal: No possible last move
1q1Q1RRK/4R2N/N2bb1Bp/P4nQ1/rqNrk2B/1rp3nq/8/Qr4N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kd4 b5 g4 h6 a4 e6 f4 c6 a5 b3 g5 b4 g6 h3 f6 b2 f5 b3 g7 h2 f7 Ra6 f6 Qd7 Na3 b1R Bd3 b2 Bg6 Ne7 g8R c5+ Ke4 e5 d4 c4 Bg5 c3 Bh4 Qh3 Ra2 Nd7 Nc4+ Kc7 d6+ Kc6 Qe1 Rb6 d5+ Kc5 Qd1 Nf5 Qa4 Be7 f8N Rb3 f7 Ra1 Nh7 b1R f8N Qg4+ Kd3 Nf6 d7 Nh5 d8Q Be6 d6 Kd5 d7 Bd6 Rf2 Nhg3 Qg5 Qh3 d8Q e4+ Kc2 e3 Kd3 e2 Nd7 e1Q Nb8 Ra2 Na6 Qe5 Qa3 Qf4 Qb2 Ra4 Qa1 Qfg4 Re2 Bc8 Re7 Be6 Ne2 Qf4 Rf1 h1Q Ng1 Q1h2 Ne5 Qb4 Nc4 Kc6 Rf2 Nh5+ Ke4 Nhg3+ Kf3 Kd5 Rf1 Q3g2+ Kg4 Ke4 Rf2 Ne2+ Kh5 Qgh3 Bf7 Qe5 Kg6 Neg3 Rf1 Qeb5 Be8 Qb8 Rf2 Ne3 Rff8 Nef5 Bf7 Qa3 Kf6 Qab4 Bg6 Qa7 Qc7 Qbb6 Ra8 Qb4 Rgg7 Rd8 Rg8 Bc5 Qb6 Rd6 Raf8 Qb8 Qd8 Rd4 Bf7 Ne3 Kg7 Bd6 Kh8 Nef5 Bg6
B1K3Q1/r2N4/1NRR1np1/1Qb2k2/4p3/6Qr/1Bqn1rPQ/BbR1rqb1 b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Qd6 Bd3 Qh6 Bf1 Qxh2 Ke2 Kf7 Ke3 Kf6 Kd4 a5 Kc5 h5 b4 e5+ d6 g6 d4 h4 f4 h3 f5 c6 Kb6 e3 Kc7 a4 d7 e2 d8R e1R b6 c5 d5 a3 b5 c4 d6 e4 b7 c3 b6 c2 Nd2 a2 Bb5 Rf1 Nc4 Rh5 Bc6 Ne7 Qe2 Qg3 Nf3 h2 Nfe5 Qd3 d7 Ng8 Bb2 Ra7 Rc1 a1R Qe3 Rh4 Qg3 Bc5 Rg1 h1Q Qh2 Kg5 f6 Rf2 f7 Qc3 f8Q Nf6 Qg8 Rh3 Rgd1 Qg1 Rd6 Qf1 Re8 Qcd3 d8B Be6 Nd7 Na6+ Kc8 Kf5 b8Q Rb1 b7 Qdd1 Na5 Ba2 Ree6 Ra1 Bc7 Bb1 Nc4 Qdd3 Ncb6 Qde2 Rcd1 c1B Qg3 Bg5 Rc1 Bge3 Bd5 Qed1 Rc6 Qc2 Red6 Ba3 Bd8 Nc5 Qc7 Bb4 b8Q Nb3 Qcb7 Bbc5 Qa6 Bed4 Qb5 Nd2 Be7 R1a2 Bf8 Re2 Bg7 Bg1 Qh2 Re1 Ba1 Ng4 Bgb2 Nf6 Rc7 R2a3 Ba8 Raf3 Rcc6 Rf2 Re6 Nf3 Qbg3 Nd2 Red6
1bk1Qn1b/1N1r1N2/B5p1/RK6/1QrQp1br/3Brn2/q1RN2P1/3QR2q b - - 0 1 illegal: No proof kernel
N2Nb2n/1QR2Qb1/3RK1p1/3QB1Pq/p6B/2r1rR2/rQ1q1r2/B1n1kq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Bh3 Rh6 Bf5 Rh8 Bg4 hxg4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 a5 b6 a4 h5 c4 e5+ Ke7 d6+ Ke6 h6 Kd5 e6 Ke4 e7 g6 e8Q+ Qe7 b5 c3 b7 c2 h7 f3 Kg3 f2 d5 f1Q b6 Qd3+ Nf3 Na6 b8B Qb3 b7 Qe6 d7 Qc3 d8Q Qd2 d6 Ke3 d7 Nb4 Qf7 Nh6 Nc3 Na2 Nb5 Bg7 Bb2 c1R Nc7 Re8 h8Q Rc3 Nd4 Nc1 Ra3 Ra6 Qb3 f4+ Kh4 Kf2 Na8 f3 Nc6 g3 Be5 g2 b8B g1R Qb7 Qf6 Ba1 Ke1 Kh3 Rf1 Kg3 Rb6 Ba7 Rb2 Bf2+ Ke2 Qa5 Ra2 d8R Bd7 Qad5 Re7 Rc8 Be8 Nd8 Qf5 Be1 Rf2 Rc7 Qfc2 Rh3 Qcd1 Rb3 Kf1 Rb6 Ke2 Rd6 Re6 Bf4 Ree3 Be5 Kf1 Kf4 Ke2 Qf6 Nf7 Qg8 Nh8 Qgf7 Rg2 Bg3 f2 Bh4 f1Q+ Rf3 Rh2 Qf5 Rf2 Qc2 Ke1 Qcb2 Rb3 Bf6 Rec3+ Ke5 Rba3 Ke6 Re3+ Qe4 Rc3 Be5 Qd1e2 Qed5 Qed1 Rf5 Qh5 Rf3
B4nKn/1rb2Q2/4QP2/1qq3Bb/Qq2n3/RBRB4/1N1r1ppn/2kNN3 b - - 0 1 illegal: No proof kernel
2QBKR1r/r2Nnn2/1Rq1nPB1/1r2p3/3R1Bq1/Q3Nb2/5pkB/b3rN2 b - - 0 1 illegal: No proof kernel
3q1qr1/KQ1bn2b/n1N1np2/2r2B1N/1R3QRp/Qqkq1PB1/3B4/1Q1R4 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 Kb4 Kd7 Kc5 Ke6 b4 h5 g4 a5 c4 a4 d5+ Ke5 b6 h3 g5 f6 b5 h4 f3 h2 g6 e6 g7 a3 d6 a2 b7 Ne7 g8R Ra6 b6 Qf8 d7 Qh6 d8Q Bd7 Rg4 Ra4 Nh3 Qf8 Nc3 Ra5+ Nb5 Rg8 Rb1 a1N Nf4 Nc2 Nh5 Nd4 Qc8 Qd8 Rb4 Qf8 Rhg1 h1Q Bh3 Qh2 Qb3 d1Q Qa3 Qhc2 Bd2 Qb3 Qe8 Qf1 Qg6 Qe2 Rd1 Qf1 Bh6 d2 Qb1 Qfd3 Bg5 Kf5 Be3 e5 Bg5 e4 Bf4 Nbc6 b8Q e3 b7 e2 Kb6 e1Q c5 Ne6 Na7 Qee4 Qc7 Nb8 c6 Na6 b8B Qed5 Qd6 Rc5 c7 Qa8 c8Q Qad5 Bc7 Qa8 Qb7 Qad8 Rh1 d1B Bd2 Bc2 Nc6 Nd4 Qf4+ Ke6 Qbc1 Kd5 Ka7 Ne6 Qcb2 Qe3 Qb1 Bh7 Rd1 Qe4 Qe3 Qed3 Bg3 Qe4 Rb6 Kc4 Qf4 Qd4 Rg5 Qe4 Bf5 Qd4 Rg4 Qe4 Be3 Kc3 Rb4 Qd3 Bd2+
1k1NRB2/1rR3q1/1R3pB1/3P2rn/qqn4B/1Q1K2Nb/1p4N1/n1QnB1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Kd7 e4 b5 Ke2 c5 a4 Kc7 d4 g5 h6 f3+ Kd3 g4 d6+ Kb7 a5 b3 d5 b2 h5 g3 h7 g2 d7 b4 h6 f2 e5 b3 e6 Nc6 a6+ Kb8 e7 Nf6 e8R Nh5 Nd2 Na5 Nh3 g1Q Rb1 Rg8 h8B Qh4 d8N Nc4 h7 Ra7 Ne4 Rg5 Bg7 Rb7 Nf4 Bh3 h8B Qg2 Bc3 f6 Bg7 Bd6 Be2 f1N Ng3 Nfe3 Be1 Bc7 Bf3 Bb6 Be4 Ba7 Qf3 Nd1 Bg6 Qg4 Bcd2 Qh4 Rc1 b1Q+ Rc2 Qa1 Bf8 Qa4 Bc3 Qg1 Ng2 Bb6 Bf2 b2 Bce1 Qg4 Qe3 Qb4 Qc1 Qd7 Rc3 Qda4 Rh2 Nd2 Rb3 c4+ Ke2 c3 Kd3 c2 a7+ Kc7 a8Q Nc4 Qa7 Bd4 Qb6+ Kb8 Nf5 Be3 Bh4 Bc5 Ng3 Bd4 Nf4 Bc5 Rhe2 Qg2 R2e7 Bg1 Ne4 Qg4 Rc7 Qgd7 Ng2 Qf7 Ng3 Qg7 Qb1 c1N+ Kc2 Ne2 Qc1 Nd4+ Kd3 Nc2 Qbe3 Na1 Qf3 Qba5 Rb6 Q5b5 Qf2 Qba5 Qfc2 Q5b4 Qb3
Kn3nN1/Brb1Nr2/n2NPq2/3q3R/1R1Q3q/n2B1BRB/3p1p2/kb1Q4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 Kb4 Kd5 h5 e4 f5 g4 a5 g6 d3 c5 a4 e5 d2 b3 a3 g7 a2 b6 f3 c6 h4 c7 f2 b7 f4 g5 h3 g6 f3 Ba6 f1N Nc3 f2 Ne4 h2 Nd6 Kc3 b4 Ng3 b5 Rh7 b6 Ne4 Bd3 Nc5 Nh3 Qf6 Nf4 Nca6 Rg1 Be7 Rg3 Bd8 Rb1 a1N Rb5 Nc2 Ba3 Rh4 Bc5 Ra7 Ra5 Kb2 Be3 Nc6 b8Q Rb7 Qa7 Rh7 Rc5 Na3 Ra5 Nh6 g8N Ncb8 g7 Nf5 Ng6 Nh4 N6e7 Ng6 Rb5+ Ka2 Rb4 Nf8 Rh4 Nc5 Rh5 Kb2 Qaa4 h1Q+ Qe4 Qhh4 Qf4 Ra7 b7 Nca6 Qd4+ Ka2 Qf3 d1Q Qfg4 Nc6 b8R Qd2 Rb4 Rb7 Qd1 Ncb8 Be4 Qd3 Bf3 Qdf5 Nh6 Q5g5 g8B Rf7 Bh7 Qgf5 Nhg8 Q5g5 Ne4 d6 Bg6 Bf5 c8B Bc7 Bh7 Bg6 Bcg4 Qgf5 Bh3 Qd7 e6 Qb5+ Nc5 Bb1 Bd3 Qd7 Ne4 Qd8 Qa7 Ka1 Qb6 Nbd7 Kc6 d5 Nd6 d4 Bdf1 d3 Qd4+ Ka2 B1e2 d2 Bd3 Qa8 Qf4 Qd8 Ba7 Ka1 Qe3 Rb5 Qb6 Ndb8+ Kb7 Qd7 Ka8 Qd8 Qe3 Rb7 Qe4 Qd7 Qf4 Qb5 Qe3 Qd5 Qd4+
R2B2k1/1Nb1bnBr/4PR2/3r2n1/K2bQ3/1nRBqp2/1qp1bNQ1/2N2N2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 Kc3 Kf7 Kb3 g5 h4 c5 e4 g3 h5 g4 h6 c4+ Ka4 c3 b4 f3 b6 f4 e5 f2 b5 f3 h7 c2 d6 g2 e6+ Kg7 d5 g3 b7 Qb6 d7 Qe3 d8N Qc5 d6 Qe3 b6 Nd7 b8Q Ndf6 d7 Nh6 b7 Be7 Qe2 Nf7 Ra3 Ne4 Rc3 Neg5 Nh3 g1B Bb2 g2 Qg3 Bh2 b8R g1B Nd2 Ba6 Qg2 Bc7 Nb7 Bd3 Qe1 Be2 d8B Ra6 Rc8 Rd6 Ra8 Rd5 Rh2 Bd3 Be2 f1Q Nf2 Bc4 Bd3 Kf8 Qe2 Qc1 Ba1 Qb2 Rh6 Kg7 Rf6 Ba6 Bf5 Kf8 Qe1 Be2 Nf1 Qd3 Rb3 Bb6 Nh1 Qb1 Rg6 Bd1 Qe3 Bh2 Nf2 Bhc7 Ra3 Qd2 Bd3 Be2 Qf4 Qbc1 Kb3 Qe3 Bf6 Bd4 Bg7+ Ke8 Ra4 Qa1 Rc4 Qac1 Rc5 a4+ Kb4 a3 Ka4 a2 Rc3 a1N Qf5 Bd1 Rf6 Nb3 Qf4 Qb2 Qe4 Rg8 h8N Rf8 Bc4 Be2 Ng6 Rh8 Ne5 Rh6 Ned3 Rh7 Bh8 Kf8 Nc1 Kg8 Bg7 Rc5 Ba6 Rd5 Bd3
6r1/1Rr1qQ2/2QQpB1r/nBb1N3/1B2N2b/KpP3kb/1n1R3q/Nb1Q4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 h4 Kf6 a4 Ke5 f4+ Ke4 c3 b5 Kc2 d5 Kb3 g5 h6 g4 h5 d3 f6 d2 a5 d4 f7 g3 h7 d3 h6 g2 f5 Kf4 a6 Kg3 a7 Nf6 Na3 Nfd7 f6 Nb6 Rb1 Bh3 Nf3 g1B Ne5 e6 Nc2 Qe7 Rh2 Nc4 Ba3 Bc5 Na1 Nc6 Ka2 Bg7 f8Q Nb2 Qf7 Rag8 a8Q Na5 Qc6 Bf8 Qfh5 Bg7 f7 Bf6 f8Q Bg5 Qhf7 Bh4 Qb3 d1Q Rd2 Qh5 Qd1 Qe2 Qb8 Qh2 Qbd6 Rg7 Be2 Rhg8 h8B Rg6 h7 Rh6 Rc2 d2 Bf6 Bg2 h8N Bh3 Qc1 d1R Rd2 Rf1 Qd1 Rg1 Nhg6 Rc8 Nf8 Rc7 Nh7 Rg2 Ng5 Rg1 Rc1 b3+ Kb1 b4 Bb5 Kf4 Ne4 Rg8 Rcc2 Nbc4 Ra2 b2 Kc2 b1B+ Kc1 b3 Bb4 Nb6 Kb2 Na4+ Ka3 Nb2 Rg2 Na4 Rad2 Nb2 Rg7 Bf5 Rh7 Bh3 Rh8 Rg2 Rb8 Rg8 Nf2 Kg3 Rb6 Rf8 Rb7 Rg8 Ne4+
r1b1nN1K/qB2bB1N/2Nnp3/B7/3R2k1/p1R1nB2/1n1QQPb1/1q2Rr2 b - - 0 1 illegal: No possible last move, all moves rejected
1nNq1RQN/1n1Rnb1K/4pR1b/2rBk3/1R3p1P/2b2BQr/bB3Q2/q7 b - - 0 1 illegal: No proof kernel
1q2R1bn/3kn3/1BbP1r2/1N1Q2p1/n2q1R1Q/1R1Qp1b1/K2RN1B1/1N2rb2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 e5 a4 c5 h4 g5 d4 b5 Kd2 g3 Kc2 c4 Kb2 b3 f6 g2 f5 e4 h5 b4 a5 Ra6 d6 Be6 d5 Nh6 f7+ Kd7 f6 Nc6 Rh4 Ne7 Ra3 Qb8 Ne2 g1Q Qd3 c3+ Ka1 c2 Rh2 b2+ Ka2 Bh3 Rb3 Qd4 Bg2 e3 Bd2 Bg7 f8R Nf7 h6 Rh7 Be1 Nh8 f7 Be5 Re8 Bg3 f8R Rf7 h7 Rf1 Bc3 Re1 Rf4 Be6 Bd2 Bg8 Bc3 Rb6 a6 Rc6 a7 Rb6 a8N Ra6+ Na3 b1B+ Kb2 c1N Nc7 Rc6 Ncb5 Na2 Ka1 Bc2+ Nb1 Ra6 Bb2 Nc3+ Ba3 Na4+ Ka2 Nhg6 h8Q Rc6 Qd1 Be4 Qh4 Nh8 Qd3 Bf3 Nec3 Be2 Bb2 Bf1 Ne2 Qe5 Bd4 Qe4 Bb6 Qd4 Rc3 b3+ Ka3 b2 Ka2 Rc8 Rb3 Nc6 Ree4 Ne7 Re6 Rf8 Ree4 Ke8 Re6 Rf6 d7+ Kf8 d8Q+ Kf7 Qd6 Ke8 Qc5 Kd7 d6 Rf8 Qd5 Rf6 Nd2 b1B+ Ka3 Bc2 Nb1 Bd1 Ka2 Bc2 Q3c4 Be4 Qd3 Neg6 Re8 Ne7 Bh1 Bf3 Rf2 Be4 Bg2 Bf3 Nc1 Be4 Rd2 Bf3 Ne2 Be4 Q5c4 Bc6 Qd5
RnN1b1R1/4RrQ1/1NNPq2r/1p5n/1rkb4/2p1q1B1/3Q1nB1/2KBRn2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 g4 c5 f4 b5 a4 e5 g5 h5 g6 e4 a5 b3 f6 b2 f7 h3 a6 c4 g7 h2 a7 h4 f5 h3 f6 Be6 Bg2 Rh7 Nc3 b1Q Na4 Qc7 Ne2 Qc6 Ng3 Rh6 Nb6 Qb3 Re1 h1N Ra2 Be7 f8Q h2 f7 Nf6 g8R Bd7 Qg7 Nf2 f8R h1N Rf7 Be8 Qe2 Bd8 Re7 Nh5 Ba3+ Qc5 Kc1 e3 Qd2 c3 Bf3 Qc4 Bd1 e2 Bb4 Qd3 Ba5 Qc8 Ra4 Qe3 Ra3 Qd7 Ne4+ Kc7 d6+ Kc6 Ra2 Qe6 d7 N1g3 Nd6 Nf1 d5+ Kc5 Ndc8 Bc7 d8N Be5 Nc6 Bd4 Na4+ Kc4 Bc7 Na6 Bd6 Rb8 a8B Rb7 Bg3 Nb8 d6 Ra7 Nc5 Ra4 Ra1 Rb4 Na4 Nh2 Rh1 e1R Bb7 Re2 Re1 Nf1 Ra3 Ng4 Ra2 Rf2 Ra3 Rf7 Nab6+ Kc5 Ra8 Nf2 N6a7 Nh2 Bg2 Nf1 Nd5 Kc4 Nc6 Qf4 Be4 Qfe5 Bg2 Qe3 Ndb6+
1B1R2NK/3QQ3/3p4/r1Q1B2B/n1P1b3/1qqrRq1r/1n4Np/bRkB2q1 b - - 0 1 illegal: No possible last move
N6Q/kRRKnB1Q/1RPN4/2q2r1n/2bQN2r/p5B1/b2b1bpR/q2q4 b - - 0 1 illegal: No possible last move, all moves rejected
B2Qb1k1/2q3Q1/2PNnRr1/Rb4pn/BpQ3r1/bQ3q1n/2Kb2N1/4R1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 h4 d5 f4 g5 a4 b5 c4 e5 h6 b3 h7 d3 c5 b2 f6 e4 f5 b4 c6 d4 a5 Bh6 h5 Nd7 a6 Nf8 a7 Qc7 Ne2 Bd7 Ra5 Bg7 h6 Ne6 Nbc3 b1B Nf4 Be8 Qb3 e3+ Kd1 d2 Ne4 Ba2 Ng2 e2+ Kc2 d1N Be3 e1B Bb5 Nf2 Ba4 Nh3 Bg1 Bd2 Nd6+ Kf8 f7 Nf6 Qc4 Nh5 Qb3 Rg8 h8Q Rd8 a8B Bf6 h7 d3+ Kd1 Bb2 Qhc3 Rg6 Qcc4 Kg7 f8R Ba3 Rf6 Kh8 Bc5 Rd7 Re1 Bb1 Bg1 Kg7 Ne4 Rd4 Nd6 Rg4 Nf7 Kf8 h8Q+ Rg8 Qh7 Rg6 Qh6+ Kg8 Nd6 Ba2 Qf8+ Kh7 Qe7+ Kg8 Qd8 Be3 Rf7 d2 f6 Bb1 Qc8 Bd3 Qd8 Bf1 Kc2 Bc1 Qe4 Bb5 Qec4 d1Q+ Kb1 Qf3 Kc2 Ba3 Rf8+ Kh7 f7 Qa7 Rg8 Qb7 f8Q Bd2 Qff6 Qb6 Rf8 Qc7 Rf7+ Kg8 Qfe7 Be3 Rf6 Bd2 Qg7+
Rr2N3/4b3/2p3n1/qBQpq1Nn/3RB2q/k2KR2P/N1rBB1b1/Qb5q b - - 0 1 illegal: No proof kernel
Q5k1/1R2Q3/1p1Q4/R2n1Bn1/1r1Pb2b/1RBBq1nb/1QK2pN1/brN1q3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 g5 a4 c5 e4 f5 d3 Kf7 Kd2 b6 d6 f3 h6 c4 d7 g4 a5 f4 h7 g3 e5 f2 a6 b3 h5 b2 h6 f3 a7 g2 Na3 b1B Bb2 Be7 Nc2 Na6 Bc3 Nf6 Ne3 Nc7 Rh3 Ne6 Ne2 g1B Ng2 Ng5 Ra5 Nd5 Nc1 Qe8 d8Q Rg8 Rg3 Bh3 h8Q Rf8 Qf6+ Kg8 e6 Bh2 Qe5 Rf4 Qdc7 Rc8 a8Q Rd4 Be2 f1Q Qc2 f2 Qed6 Qg1 Rf3 Be5 Qb2 B7f6 e7 Bg3 Ra1 Bh4 Ra5 Rf4 Qcb7 Rc5 Rg3 Rb5 Bg4 Re4 Bf5 Re1 Rf3 Rb4 Qba7 Qf8 e8B Qe7 Re3 Qe6 Qae7 Bc2 Nb3 Rb1 Nc1 Qh1 Qeb7 Qf1 Beg6+ Qe8 Qbe7 Qg1 Be5 c3+ Ke2 Qc8 h7+ Kh8 Be4 Bb3 Qee6 c2 Kd2 Ra1 Ne2 c1N Qc3 Rb5 Bgf5 Qe8 Qcb4 Bc4 Kc2 Rb1 Qa3 Kg7 h8R R5b4 Ba1 Bc3 d4 Qe1 Qb3 Qe7 Rb8 Qe8 Qf6+ Kg8 Rb7 Bb2 Qa3 Ba6 Rb3 Bc3 Nef4 Ne2 Nd3 Ng3 Nc1 Be2 Bd3 Bf3 Qa7 Q8e3 Qfe7 Be4 Qa6 Bb2 Qa2 Ba3 Bc3 Bb2 Qa7 Ba1 Qb2 Qf3 Qa6 Qfe3 Qa8#
NR1K1nR1/Bq4Q1/1pB2Qn1/1BN5/2bP1b2/b1p1b1q1/1Q4NQ/kn1r2r1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 g5 f4+ Ke4 a4 e5+ d6 b3 h4 b2 f6 c6 f7 g3 f5 g2 f6 g4 h5 g3 h6 Bf5 a5 Qc7 h7 Be7 f8N Bh3 f7 Ra6 Nf3 Be6 Rg1 Bc4 Na3 b1N Nd7 Bg5 f8Q Bf4 d4 Ne7 Ne1 Ng6 Qd2 Rg8 h8Q Ra8 a6 b6+ Kb4 Qa7 Nb5 Qb7 a7 c5+ Ka4 Kd5 Qh2 e4 Qg7 e3 Qb2 e2 Nc7+ Ke4 Nf8 Nd7 Nfe6 Rae8 a8B Ndf8 d7 Re7 d8Q Re8 Nf3 e1B Qdf6 Bb4 Ne1 Ba3 Ra2 Bd5 Kb5 c4 Bd2 Re7 Bb4 c3 Bd6 Ke3 Nc5 Rf7 Rh1 g1Q Bd3 Qf2 Rg1 g2 Be5 Qg3 Be2 Qa7 Bc6 Qb7 Na8 Bb3 Bb8 Bc4+ Ka4 Re7 Ba7 Re5 Bb5 Rf5 Bf3 Rh5 Bfc6 Rg5 Nc2+ Kd2 Ne1+ Kd1 Rf1 g1B Ng2+ Qe1 Rf3 Qg3 Re3 Bf2 Re8 B2e3 Rb8 Rh8 Qa1 Kc1 Re2 Bf2 Ree8 B2e3 Red8 Ne6 Rg8 Nef8 Qh1+ Kc2 Qg1 Rh1 Qh2 Kc1 Qb2+ Kd1 Qb4 Re5 Bd5 Kc2 Be8 Rg1 Bf3 Bf2 Be2 Bb3+ Kb5 Kb2 Bc4 Ka1 Bf1 Qe7 Kc6 Re1 Bb5 Bc4 Bd7 Ref1 Kb7 Rc1 Kc8 Rcd1 Bdc6 Qb7+ Kd8 B2e3 Qb2+
b3q3/1b6/1pqB1Rp1/5n2/NbRPBQN1/1nBRr1rQ/Kb1r4/1Q3Bk1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 Kf7 Kd2 Kf6 Kc2 e5 Kb2 c5 h4 c4 a4 g6 f4 e4 a5 b3 d6 b6 h5 e3 a6 g3 d7 e2 a7 e1R h6 g2 h7 Ne7 Bd2 Re3 Bc3 Na6 Nh3 g1Q Nf2 Qe8 d8B Qg2 Bc7 Nc5 Ra4 Qgc6 Rh3 Bb7 Bd6 Rc8 Ka3 b2 a8B Nb3 Ka2 Rg3 Qe1 Rg8 h8Q+ Rg7 Ba5 c3 Rc4 c2 Nc3 c1B Na4 Rc7 Qh5 Rh7 Qg4 Re3 Rf3 Rh3 Bc3 Rg3 Qh5 Bd2 Qh3 b1B+ Kb2 Bd3 Ka2 Be4 Qb1 Bc1 Ng4+ Kg7 Bd2 Bb2 f6+ Kf7 B2b4 Ke6 f5+ Kd5 f7 Rc8 f6 Nf5 Bc3 Be7 Bb8 Bb4 Bd6 Rc7 f8Q Rh7 Qg2 Rh2 Qh3 Rhe2 f7 Rd2 Rf4 Bh1 Rf3 Bg2 Qfh6 Bh1 f8R Bg2 Qa1 Ke4 Rf6 Bh1 Bg2 Kd3 Qb1+ Ke2 Q6h4 Re5 Rd3 Ree3 Bf1+ Kf3 Ne5+ Kf2 Qf4+ Kg1 Ng4 Ba6 Bb7 Bf3 Bc8 Bb7 Be6 Ba8 Bd7 Qcc8 Bb5 Bfb7 Bc6 Qcd7 Bf3 Qc6 Be4
2r2RNn/3q3R/1pnBP2B/1R1n1b2/2Bq1Q2/1rp1b2r/k2NQ3/Br2QK2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 d4 Kd6 e4 g5 a4 c5 a5 f5 h6 c4 h7 f3 h5 g4 h6 g3 a6 b6 a7 f4 e5+ Kd7 d6 Kc6 d7 Kd5 Nd2 b3 Ra5+ Bc5 Ne2 b2 Rb5 g2 Ng3 b1R Qe2 g1R Nf5 Ne7 Rh5 Qc7 d8B Qd7 Bc7 Nbc6 Bd6 Rb3 Kf2 Rb8 a8Q Ng6 Qa1 Rh1 Rh4 Rh3 Kg1 f2+ Kg2 Rf8 h8B Ra8 Bf6 Nh8 h7 Raa3 Bg7 Rb1 Nh6 Rab3 Ng8 c3 Bb2 Rd8 Bh6 Rf8 Qa4 Re8 Qe1 Rf8 Be2 f1N Ba1 f3+ Kg1 Ne3 e6 Bb7 Rf4 Rc8 Rf8 Ba6 Rb4 Bd3 Rb5 Bf5 Qa2 Ng2 Kf1 f2 Qa6 Nf7 h8R Nf4 Rh7 Nh8 Nf3 Nd3 Qa2 Kc4 d5 Be3 Qc2 Rb4 Qcc1 Kb3 Nd2+ Ka2 Qcd1 Nf4 Bc4+ R4b3 Qde2 Qf7 Ba3 Qe8 d6 Nd5 d7 Qe7 d8Q Qd7 Kg2 Rf3 Qh4 f1Q+ Kh2 Rg3 Bd6 Qf4 Qhg4 Rh3+ Kg2 Qe5 Kf1 Qd4 Qf4
2nN2n1/2QNQR2/p1B1rNkq/1N2b3/2q5/Bp2R3/1nPrb3/1bKQ2Rn b - - 0 1 illegal: No proof kernel
3R2B1/q1rrQNqb/p1n2N2/2N1Q3/1BR1Bb2/p1r1k2P/3q4/1r2QKnQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 bxa4 c4 d5 cxd5 exf4 b4 Kd7 d4 Kd6 e4 g5 b5 c5 h6 f5 b6 f3 b7 a6 h7 a3 h3 c4 Ne2 g4 Nd2 f4 Bg2 f2+ Kf1 g3 Qe1 c3 Nb3 c2 Nc5 Nd7 Nc3 Ne7 Bd2 Ne5 Rc1 Ra7 b8Q+ Rc7 Qa8 Bf5 Rg1 Rg8 h8Q N7c6 Rh1 Nf3 e5+ Ke7 e6 Kd6 e7 Bh6 e8B Rgg7 Rh2 Ng1 Be4 Rgd7 Bf7 Bh7 Bg8 Qg5 Rd1 c1Q Rg2 Qg7 Rh2 Ke7 d6+ Kf6 Nd5+ Kg5 Nf6 Qc2 Bb4 Qd2 Bg2 Kf5 d5 Bg5 Be4+ Ke5 Rc1 Kd4 Qd1 Ke3 Rc4 Re7 d7 Bh6 d8Q Red7 d6 Bg5 Kg2 f1R+ Kh1 f3 Qe7 f2 Kg2 Bf4 Qe1+ Ne2 Qb7 Rh1 Qa8 f1R Qb7 Rf3 Qa8 Ra7 Qb7 Rc7 d7 Rhf1 d8N Rd7 Qa1 Rb1 Nf7 Rc7 Rh1 Rd7 Qa8 Rac7 Rd1 Ng1+ Kh1 Ke2 Kg2 Rc3 Qb7 Ke3+ Kf1 Bf5 Qh5 Bh7 Qhe5 Qd4 Qb5 Nf3 Qh5 Rb2 Qd5 Rd6 Nb7 Qa7 Rdd4 Rd8 Qd1 Rb1 Rd2 Nfd4 Qe1+ Ne2 Ne5 Rd6 Bd3 Rd8 Qh1 Rd6 Qd1 Rd8 Be4 g2+ Ke1 Rd4 Nf7 Rd8 Qbe5 Rd4 Qf1 g1Q Nc5 Q1g2 Qh1 Ng1 Qc1 Qh2 Kf1 Rd6 Rdd4+ Qd2 Rd5 Re6 Rd7 Rd6 Rd8 Rdd7 Qe1+
1Q4R1/R1r2nKB/pb3N1N/4B1bb/2rP2qQ/3Q2R1/k1rp3q/1b2nBB1 b - - 0 1 illegal: No proof kernel
1K5B/1Q1Nbbb1/p1NR1nr1/1P1N2R1/Q4pq1/1QB3b1/1n1q2N1/1r1Bkr2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 b4 Kg5 h4+ Kh5 d4 f5 d6 c5 d7 g5 b6 c4 d5 f3 Ke3 f2 Kd4 f4 Ke5 a6 b7 c3 d6 c2 Nf3 g3 Bb2 Kg4 h5 c1Q h6 g2 h7 Kg3 Ra5 g1B Qb3 g4 Be2 f1R Nc3 Kf2 Ne1 g3 Nd5 g2 Bd1 Ra7 Rh6 Qe3 Bc3 Qh4 d8N Be6 d7 Bg7+ Kd6 Bh2 Kc7 g1B e5 Nc6 Ng2 Bf7 e6 Qg4 e7 Ne5 e8Q Qd2 Nc6 Bg3 d8Q Nf6 Qdd7 Nd3 Kb8 Rg8 h8B Nb2 Qdc8 Bh4 Rc5 Bh2 b5 B2g3 Qe4 Re8 Qea4 Ree1 Bc2 Rb1 Bd1 Nh7 Rd6 Be7 Nde3 Nf6 Rg5 Rc1 Nd5 Rb1 Kc7 Ra8 b8N Ra7+ Qb7 Ra8 Nh4 Ke1 Nd7 Rf8 Nd4 Rg8 Nc6 Bgf8 Kc8 Rg6 Kb8 Bg7 Ng2+
1N1N3k/r1b4P/N3Q2p/1Q1nr2n/2q3nq/KN2R1Rr/B1pB4/1BQb2r1 b - - 0 1 illegal: No proof kernel
1BN4K/7P/1pk1r1b1/bpQR2N1/4qQB1/R2nnn2/q1n1R2b/rQN3N1 b - - 0 1 legal: proof: e4 d5 b4 f5 exf5 h5 c4 a6 g4 hxg4 b5 axb5 cxd5 Rh6 Na3 Rh5 Nb1 Rh8 Ke2 Kd7 Ke3 c5 Kf4 g5+ Ke5 c4 f4 e6 h4 c3 d4 g3 a4 c2 f6 g4 d6 g2 f7 g3 d5 Qe8 h5 Qe7 a5 Qh4 f5 Rh6 a6 Qe7 f6 Bg7 f8Q Bh8 a7 Qg7 Rh2 Rg6 h6 Qf7 h7 Na6 Be2 Nb4 Bf4 c1N Ra3 Nh6 Bg4 Nc2 Nc3 Nf5 Nce2 Nfe3 Qd3 Bg7 Qb3 Bh6 Qb1 Qg8 f7 Nd3+ Ke4 Bg7 Nc1 Bc3 Qh6 Ba5 f8Q Qf7 Be5 Qg8 Qhf4 Rh6 Nh3 g1Q Re2 Qe1 Ng1 g2 Q8f5 Rb8 a8N b6 Nc7 Ra8 Ne8 Qc3 Q5g5 Qb2 Qgf5 Qa2 Qh5 Qg6+ Qhf5 Kd8 d7 Ra6 Bb8 e5 Nd6 Ra8 Ba7 Kc7 d8N Qe8 Qh5 Re6 N8f7 Qc6 Bb8+ Kd7 Nf3 g1B N7g5 Bh2 Ng1 Ra6 Qh6 Qa8 Qhf8 Bb7 Nc8 Bc6 Ba7 Kc7 Qfb4 Be8 Bb8+ Kb7 d6 Kc6 d7 Bg6+ Kf3 Qb7 d8R Ra8 Rd5 Ra6 Rg2 e4+ Ke2 Qb2 Bh5 Nf1 Re5 e3 Kf3 e2 Kg4 e1N Rc3+ Kd7 Qc5 Bb4 Rge2 Ra1 Ra3 Qe4 Kh4 Qb3 Bg4 Ba5 Rf5 Qa2 Re5 Bf5 Kh5 Bg6+ Kh6 Nfe3 Kg7 Nf3 Rf5 Bh5 Kh8 Bg6 Qe7+ Kc6 Rd5 Nde1 Qef8 Nd3 Qc5+
b1k5/4qNrp/KbQ1qrBQ/2RNn1bQ/5N1N/5R1P/BR2p1b1/1n4q1 b - - 0 1 legal: proof: f4 f5 a4 b5 axb5 d5 e4 g5 c4 Ba6 b3 Bc8 Bb2 Bd7 Be5 Bc8 cxd5 fxe4 f5 Qd7 Bg3 Qd8 Bf4 gxf4 Ke2 Kd7 g4 a5 d4 c5 b4 e5 g5 a4 h3 c4 f6 a3 d6 e3 g6 c3 Kd3 f3 Kc4 a2 f7 e4 g7 e2 d5 e1Q b6 e3 Kb5 c2 b7 c1B Ne2 f2 Nd2 Ra7 Nf3 Ra4 Nh4 Qd2 Nf4 Ra7 Bd3 f1B Qh5 e2 Bg6 Ne7 g8B Ba3 Rc1 a1Q Rc5 Na6 b8Q Bh6 f8Q Qc2 Qb6 Bg2 Rf1 Qf5 Rf3 Bg5 Qfh6 Qg1 Qb7+ Qc7 Qc6+ Kd8 d7 Qe6 B8f7 Bb7 Bg8 Qcd6 Ka5 Bb2 b5 Ba8 b6 Bd4 b7 Nb4+ Kb6 Nd3 b8R+ Nc8+ Kb5 Qde7 Rb6 Rb7 Ka6 Ne5 Rb2 Nd6 B8f7 Ne4 Bg8 Qf8 B8f7 Nc3 Bg8 Ke7 d8N Nb1 Nf7 Rd7 d6+ Ke8 Ra5 Bb6 Rc5 Qg7 Qd5 Rc7 d7+ Ke7 d8N Rc6 Qc4 Kd7 Qc3 Kc8 Qc2 Qgf6 Qc3 Qee7 Nde6 Qf5 Nc7 Rf6 Nd8 Qg4 Ba2 Rg8 Nf7 Rg7 Qc4 Qf5 Qb5 Qg4 Qc6 Qge6 Ncd5+
k1n5/2r3bp/KR2q1r1/npRqNbn1/QBb1QQ2/NN1n4/P3R3/2Q4B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 e5 Kc4 c5 Kb5 Kc7 g4 b6 d4 Kb7 f4 b3 g5 c4 d6 c3 d5 h3 d7 c2 g6 b2 f6 h2 d6 e4 g7 e3 f7 e2 f5 e1Q f6 Qe4 Bg2 Ka7 Bd2 c1N Ne2 Qee7 Nd4 Qe4 Bb4 Qg4 Na3 b1B Re1 h1N Nb3 Qh3 Re2 Be4 Rb1 Nf2 Bh1 Ne7 g8R Qe6 Rg5 Rg8 Rc5 Ncd3 Qc1 Bg7 f8Q Nbc6 f7 Na5 Qe8 Bf5 f8Q Ne4 Qf6 Kb8 Qe5 Kb7 Qef4 Ra7 Qg6 Kb8 Rbb2 Rb7 Ka6 Ka8 Qg2 Ng5 Qge4 Bf6 Rb1 Rg6 Rbb2 Qdg8 d8N Bg7 d7 Qd5 Nc6 Qge6 Ne5 Rc7+ Kb5 Bb7 d8Q+ Nc8 Qd7 Bc6+ Ka6 Ba4 Na1 Bc2 Qa4 Bb3 Rbc2 b5+ Rc6 Nh3 Rc5 Bc4 Nb3 Ng5 Rb6
1B3bKB/6pn/1QQN4/1b1N1n2/B1qp2Rn/3Br1br/3P1nq1/QRR2k2 b - - 0 1 illegal: No possible last move
B1N4r/qq3PQr/bR4Q1/Rn3k1N/2n1Np2/p1Q3B1/K2R1N1b/brr5 b - - 0 1 illegal: No proof kernel
qqQQ1Bk1/Q2bBP1b/1NprB2p/2K1NR2/Rr3bNb/5Q2/8/n1n3n1 b - - 0 1 illegal: No possible last move, all moves rejected
1Bq2QKN/1R1q1p2/3r2br/1Qp4n/1RN2B2/PQr2r2/Q3nq2/bBk3R1 b - - 0 1 illegal: No possible last move
K2B1n1R/b3np1N/2p2QPb/Q1Rb1B1r/3q2R1/Qb2k2r/2B1n1B1/N2q4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 d4 h5 b4 h4 g4 a4 b6 f3 b7 h3 d5+ Kd6 g6 f2 g7 a3 g5 a2 b5 Kc5 b6 h2 d6 c3 d7 c2 Nh3 Na6 b8Q Ra7 b7 Nh6 g8B Bd6 Qa8 Nb4 b8R Be7 Qd2 Nc6 Bh7 Ra5 Rb5+ Kc4 Bf5 Ba6 g6 Bf8 Bg2 f1Q Ng5 Ng8 Nh7 Nce7 Rc5+ Kb3 Na3 Rb5 Qa5 Qd1 Bg5 c1N Nc2 Nf6+ Ke5 Bc8 e4 Ne2 Rc1 Kb2 Na1 Bh6 Rc4 Rb3 Bh4 Rh3 Qa3+ Kb1 Q8a5 Ba6 Ra4 Bc4 Bg5 Bb3 Rd4 Qf8 d8Q c6 Kd6 Nd7 Kc7 Qg8 Kb7 Nf8 Ka8 Qg7 Rb4 Qd4 e5+ Qd3 Re4 Qd4 Qd6 Rh5 Qf6 Rh3 e6 Rh5 Nc2 a1B Rg4 Bb2 Bh4 Kc1 Na1+ Bc4 Qd8 Kd2 Bc2 Bb3 Qda5+ Ke3 Bg5+ Qf4 Bh4 Be5 Bg5 Bb8 Bh4 Ba7 Bg5 Nc8 e7 Rh3 e8B Ne7 Bh4 Qfd6 Bd7 Q6d4 Bg3 Rh5 Bc7 Rh3 Bd8 Rh5 Re1 h1B Bdf5 Rh3 Bf1 Be4 Bg2 Bd5 Rh1 Bf4 Ng5 R8h5 Nh7 Bh6 Kb7 Rg3 Qd6 Rh4 Ka8 Bf4 Ng5 Rh6 Qf6 Rh8 Rh7 Rh3 Rg7 R8h4 Nh7 Rh5 Rg8 Bh6 Rh8
2qBk3/1bQ1np2/RP2q2b/1nN1n1R1/3NRK2/2Np1Q1B/1rb5/QQ3r1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 e4 a5 b4 g5 c4 f3 h4 a4 e5 f2 e6 d3 Ke3 a3 c5 a2 c6 d2 h6 g4 b6 g3 e7 g2 b7 d4+ Kf4 d3 h5 Ra7 c7 Ra3 h7 Bd7 c8Q Bg7 h6 Bc6 b5 Nd7 b8N Ne5 b6 Ra7 Rh5 Bb7 Qc7 Qc8 Ne2 g1Q Na6 Qg6 Nbc3 Qge6 Bh3 f1B Nd4 Bfg2 Qf3 d1B Nc5 Bh1 Rg5 Bc2 Bd2 Ra4 Be1 Rb4 Bg3 Nf6 Bh4 Rg8 h8R Rb2 h7 Bh6 Re1 a1N Re4 Rf8 Rg8 Nb3 h8Q Nd5+ Kg3 Nb4 Kf4 Nbc6 Qf1 Nba5 Qb1 Nac4 Qf6 Nd6 Qf5 Rb4 Qg4 Rb2 Qf3 Nb5 Qc1 Qa8 Rg6 Qea2 Re3 Nd7 Rge6 Qc4 Qg1 Qb8 Re1 Rg8 Ra1 Rg7 Ra6 Ra2 Qa1 Qc8 Re3 Rg6 Re1 Re6 Kg3 Rb2 Rf5 Re2 Bf6 Rf2 Rg5 Rf1 Kf4 Qb3 Re6 Qc4 Qe5 Qa2 Qee1 Qc4 Re4 Nde5 Qeb1 Qd5 Nce6 Kd7 e8Q+ Kd6 Qf8+ Kd7 Qd6+ Ke8 Nc5 Qde6 Bd8 Ne7 Qc7
2KB1Rb1/1RnRPN1Q/1qr2Q2/1bpNpB2/1BB4n/qr3nn1/2Q3k1/b7 b - - 0 1 illegal: No proof kernel
k2bNb1b/q1nnp1QB/q2B2Q1/6R1/nN1R1NQr/2N3BP/p1b1r3/5K2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kd7 b4 g5 d4 c5 h3 Kc7 d6+ Kb7 b6 a5 d5 c4 f5 c3 b5 c2 f6 e3 f7 g3 d7 g2 d6 a4 Ba3 c1N Nc3 g4 Nge2 g1Q Nf4 g3 Qg4 Ne2 Rd1 g2 Rd4 Rh4 Rh2 Qe8 d8Q Qc6 d7 Na6 Qe8 Nc7 Bd6 a3 d8N+ Kb8 b7 Nf6 Nde6 Qa6 Ng7 Nd7 Rh1 Ka7 b8N a2 Nb1 Nc3 b6+ Kb7 Nc6 e2 Nb4 Na4 Rh2 Rb8 Nc3 Ka8 Rh1 Bb7 Rh2 Be4 b7+ Ka7 Rh1 Bc2 Rh2 Rc8 b8B+ Ka8 Rh1 Qe3 Rh2 g1B Rg2 Qf3 Rg3 Qfb7 Bg2 Rd8 Be4 Rc8 Bg6 Qba7 Bh7 Be3 Rg1 Bc1 Rg3 Bb2 Kf2 e1B+ Kg2 Nb5 Kf1 Rc5 Rg1 Re5 Rg3 Re2 Rg2 Ndc5 Rg1 Nc7 Qc6+ Q6b7 Ne8 Nd7 Qe4 Bf2 Qeg6 Qba6 Rg3 Bg7 f8Q Bh8 Rd5 Bb6 Qfg7 Bc1 Rgd3 Bd2 R3d4 Ba5 Ne6 Bh6 Rg5 Bb6 Nf4 Ba5 Q7f6 Bf8 Qgg7 Nb5 Qfg6 Bd8 Ng2 Nc7 Bg3 Ne6 Bbd6 Nc7 Nf4
NBN1q2R/1k2pn2/B1RB3r/1Nb1P2n/n2p1r2/2n3Bq/2b2QQ1/2RbK3 b - - 0 1 illegal: No possible last move
Kn1nNrn1/Q1B1pB1R/b2N2Q1/2p3QQ/b1q2R2/2r2BP1/4nNk1/1q4b1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 b4 c3 f5 c2 f6 a4 f7 a3 b6 a2 g6 h4 g3 c6 g7 e3 b5 h3 b7 e2 b6 e1N Qh5 h2 Nc3 Bh3 Ne4+ Ke6+ Kc5 Qe8 d4 Bf5 d5+ Ke5 d6 Ng2 d7 Ra3 d8N Ne1 Bh3 Ra8 Nf6 Ng2 Bg4 Ra3 Nh3 Nf4 Nf2 Qd7 Ne8 Qc7 Rb1 a1Q Rb4 Qb1 Be3 Nh3 Rf4 c1N Bd2 Rb3 Ba5 Ng5 Qg6 Bd7 Qh5 Nh6 g8B Bg7 f8Q Ne2 Bf7 Ng8 Qg6 Bf6 Qfh6 Ra3 Qhh5 Bc8 Rd1 h1B Rc1 Bg2 Rh1 Rc3+ Rc4 Nh6 Qh4 Rf8 Nd1 Ng8 Qhh7 Be4 Rh6 Bd5 Qh5 Be4 Q7g6 Bc2 Rh8 Ba4 Rh7 Rf3 Rf4 Na6+ Kc4 Bd7 b8Q Rb3 b7 Bc8 Qa7 Rd3 b8Q c5 Rf5+ Ke4 Nb7 Qf4 Qba8 Be5 Bc7 Ne6 Qgg5 Ba1 Qb6 Re3 Qaa7 Nd8 Qbh6 Nb8 Q6g6 Bb3+ Kb5 Bd4 Ka5 Rc3 Kb6 Bg1 Nf2+ Ke3 Nbd6 Ba6 Qb7 Ba4+ Ka7 Nf6 Ka8 Ng8 Q5f6 Qc4 Qa7 Kd2 Rf3 Ke1 Rf4 Kf1 Qfg5 Kg2 Bf3+
3rBn2/3np3/kBq2QPQ/n1bb1rp1/Q2Q2R1/N2RK3/1B2N1N1/2nq1b2 b - - 0 1 illegal: No proof kernel
2NB2r1/3npp1K/3q2Qb/R1nN3N/2RkP1QB/2rB1n2/5qB1/rRb4n b - - 0 1 illegal: No possible last move, all moves rejected
1n1N1B2/bB1PR3/2Q1pR2/4RqQ1/b4r1p/1n1b1r1q/rRB3r1/N2K2Qk b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg6 d4 a5 b4 c5 g5 Kf5 g6 h5 d6 e6 b6 e3 b5 Ke4 d5 c4 f5 e2 f6 c3 b7 h3 d7 h2 g7 c2 b6 a4 f7 a3 d6 a2 Nd2+ Kf4 Ba3 Kg3 Ngf3 c1Q Nd4 h4 Bg2 Qf6 d8Q Ne7 g8B Nec6 Bh7 Ra4 Bc2 Qf5 N2b3 Na5 Nc6 Rg8 Qg5+ Rg4 d7 Qe3 Nd8 Bc5 Rg1 h1B f8R Kh2 Rf6 Qh3 Bb4 Be3 Bf8 Rf4 Rb1 a1R Rb2 Raa4 Na1 Nb3 Qd6 Ra5 Qc6 Ra2 Bd5 Bd4 Rg3 Bg2 Re3 Kh1 Re5 Be4 Qc3 Rf3 Qc6 Bd3 Be4 Bb5 Bd5 Ba4 Bde4 Na6 b8R Bc5 b7 Ba7 Ra8 Rg7 b8Q Rg6 Qbb7 Nb8 Qbb5 Ba6 Qbc5 Bd3 Q5b6 Nc5 Kd2 e1R Bd5 Re4 Kd1 Nb3 Qbe3 Qhg4 Qec5 Ref4 Qd4 Kg2 Qg1+ Kh3 Nf7 Bf1 Qc7 Na6 Re8 Nb8 Qh5 Bd3 Bb7 Qg2 Nd8 Kg3 Qf2+ Kh2 Re7 Kh1 Qc6 Qgh3 Qe3 Rgg4 Qg5 Rg2 Qg1+
N1qq2r1/2bPBQnR/3p3Q/1BR5/qq3BNr/4QR2/Qr2n1p1/K2bk3 b - - 0 1 illegal: No proof kernel
2Q1BbK1/3p2R1/3bn2r/1QbNR1B1/N1N1q1R1/r1B2n2/2P2pk1/Bb1q2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 g5 Kf5 Kd5 b4 a5 h4 g4 e4+ Kd6 b6 d3 e5+ Kd5 h6 a4 b7 f3 e6 d2 h7 a3 e7 a2 e8R g3 h5 f2 h6 f6 Kg6 g2 Kf7 f5 b5 f4 b6 f3 Qe2 d1Q Nh3 g1B Na3 Qg5 Nc4 Qg4 Bg5 Nc6 b8N Ra3 b7 Qe4 Na6 Nf6 b8Q Bb7 Qc8 Nh5 Nc5 Ng7 Na4 Ne6 Nf4+ Kd4 Rb1 a1B Nd5 Bb2 Bh3 f1Q Bf5 f2 Bg6 Bh2 Re7 Bd6 Rh4 Qg1 Rg4 Bc3 Rb5 Bcb4 Qf1 Bbc5 Ra5 Rg8 Bh5 Rg6 h8B+ Rf6+ Kg8 Ne5 h7 Nf3 Rg7 Rh6 Be8 Ba6 Nd2 Bc4 Qe2 Ba2 Qb5 Bb1 Nc4 Qf4 Rf7+ Ke4 Bc3 Nd2 h8B Kf3 Bhe5 Qf5 Rg7 Qe4 Rh4 Kg2 Rg4+ Kf1 Ba1 Nf3 Bec3 Rg6 Qbb8 Ba7 Nc7 Rh6 Re5 Bb6 Nd5 Bbc5 Rf4 Kg2 Qb5 Qg6 Rh4 Qe4 Rg4+
N1qb1n1b/3p2Qb/8/NrRB1r1p/1BnQ1NBk/2R2q2/2bPq3/KB5R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 g4 Ke7 c4 Kf6 e4 Kg5 e5 h5 e6 f5 e7 a5 e8B f3 b6 a4 c6 a3 b7 f4 c5 a2 c7 h3 c6 h2 Qa4 f2+ Kd1 f3 Kc2 Kh4 Kb2 Rh7 g5+ Bb4 g6 Nf6 g7 Rh8 g8B Nh7 Bd5 Nf8 Bg6 Ra5 Bh3 f1Q Na3 f2 Ne2 Rb5 Nf4 Qe2 Nc4 f1B Bg4 Ba5+ Qb4 Rg8 Bb1 Rg5 Nb6 Rf5 Na8 Rc5 Qd4 Rb5+ Kc2 Bg2 Ba3 Be4+ Kc1 Bb6 Bb4 Bc2 Kb2 Qde8 Rc1 h1Q Qg7 Qhf3 Qd4 Na6 b8N Bb7 c8Q Bd8 c7 Nc5 Nc6 Ne4 Na5 Nd6 Qb8 Ba6 c8R Bb7 Rc5 Bc6 Bc4 B6e4 Bd5 Bed3 Kc3 Nc4 Qbe5 Rf7 Qg7 Bh7+ Qd3 Rf5 Qe3 Bd3 Kb3 Be4 Rc3 Bd3 Qed4 Be4 Bc2 Bd3 Rc1 a1B Bb1 Bc2+ Ka2 Bg5 Qe3 Qc8 Qed4 Bd8 Rh1+ Qh2 Rb3 Na3 Qg1 Bd1 Qh6 Bh8 Qd4 Nc4 Rc3 Ba4 Qhg7 Bc2 Rc1 Qhf2 Ka1 Q2e2 Rh1+
5b1b/3pPB2/2Q3nr/3B1bkp/bRK2Qq1/2BQ2rr/NR1B1q2/2N1Nn2 b - - 0 1 illegal: No possible last move, all moves rejected
r1r2NNq/2P4k/1Q2Bb1n/1K1pR1Q1/3qRpRB/r2N1R2/8/r1Bn1bq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 Kd3 Kf7 Kc4 g5 h4 Kg7 b4 a5 e4 a4 e5 d6 b6 d3 h6+ Kh7 h5 d2 b7 d5+ Kb5 g4 c4 g3 e6 a3 e7 g2 e8R f3 c5 f4 c6 f2 c7 a2 Nc3 Ra4 Rh4 Bd6 Nf3 g1Q Re4 Qg6 Ne1 Bh3 Nd3 Qc8 Rg4 Na6 b8R Qcf5 Rbe8 Qgg5 R8e5 Qf8 Be2 Ne7 Qg1 Kg8 h7+ Kg7 h6+ Kg6 Rb1 d1Q Rb3 f1R Qg2 Rg8 h8N+ Kh7 Ng6 a1R Qg3 R1a3 Bf3 Qff6 Nf8+ Kh8 h7 Nf5 Qg1 Nc5 Bg2 Kg7 h8B+ Kh6 Bf3 Ra8 Qg2 Qd8 Bf6 Na4 Qg1 Qg7 Bh4 Be7 Qb6+ Qg6 Qf6 Nb2 Qg5+ Kg7 Bg2 Rg1 Bf3 Bf1 Bg2 Rh1 Bh3 Rh8 Ne6+ Kg8 Rg3 Nd6+ Kc6 Qb8 Ne1 Qa7 b5 Rh6 b6 Qg7 b7 Qd3 b8Q+ Bd8 Ra4 Be2 Ne4 Nf5 Bd2 Rh8 Rab4 Qb1 Rbf3 Nh6 Nd3 Kh7 Kb5 Rg8 Rg2 Qh8 Rg1 Qf2 Qb6 Be7 Rg2 Rgc8 Rc4 Qa1 Bg4 Rb1 Bc1 Qg1 Rb4 Bf1 Ra4 Bf8 Rgg3 Bg7 Nf8+ Kg8 Rb4 Nd1 Bf5 Qb2 Rg4 Rba1 Nf6+ Kf7 Ng8 Bf6 Ng6 Kg7 Be6 Qc3 Rd4 Kh7 Rde4 Qcd4 Nf8+
1N5K/krpB4/b3qr2/1n2rqRN/1B3PQ1/pRQ1bq1R/3R2BQ/2nr4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 h5 Ke5 e6 f4 e3 g4 a4 b4 e2 d4 e1Q+ Ne2 h3 b6 a3 b5 h2 d6 h4 d5 h3 b7 Qc3+ Nd4 Ne7 Kf6 e5 g5 e4 g6 e3 b6 e2 g7 e1Q g8B Qe4 Nd2 Qe1 Ne4 Qed2 Bg2 Ra5 Ng3 Qde3 Bd2 Na6 b8Q Nb4 b7 Na2 Nh5 Nc1 Qg4+ Nf5+ Kg6 Rb5 Nc6 Rh6+ Kf7 Qce5 Bb4 Qf3 Bh7 Qee8+ Kg8 Rf6 Kh8 Qe6 Rb1 Ra5 Rb3 Nd4 Bf5 Nb5 Qa7 Qe8 b8R Ba6 Qe3 Qf7 Qc3 Be7 Rb6 Kc8 Nb8 Bf8 Rc6 Kb7 d7 Bc5 d8Q Be3 d6 Ka7 d7 Qg6 Rg1 h1R Rd6 h2 Rd2 Qg5 Qc8 Qg6 d8R Qgf7 Qh3 Qfd7 Rg8 Qd3 Bg4 Qdf5 Rf1 Rg1 Rg5 h1R Re1 Rf1 Qh2 Rf2 Ree2 Rd1 Re1 Re2 Rh1 Ra4 Ba5 Rd4 Bb4 Rd6 Qg8 Rb6 Qg6 Rb7 B4h3 Q5e4 Qf5 Qb1 Qg4 Qbf5 Qe5 Bg1 Qgg3 Qb6 Qc3 Qg6 Bd7 Qf5 Qhh3 Qbe6 Qhg4 Re5 Rh3 Be3 Qh2
r1bKRb1n/k1pQ3b/4Q3/1q1R1Q2/NP3pBB/1Rnr1rq1/1Q5N/1r5B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 a5 Kf5 f3 g4 a4 d4 f6 e4 h3 e5 h4 b6 a3 e6+ Kd6 b7 h2 g5 a2 g6 h3 g7 f2 Qb3 Qd7 Nf3 Rh6 Nc3 Ra3 Bg2 f1B Na4 Na6 b8Q Be7 Bg5 Bd8 Rd1 a1R Bh4 Be7 Rd2 Be2 Rb1 h1Q Nh2 Qe1 Bh1 Bf8 Q3b6+ Qc6 b4 Nc5 Rb3 Rb1 Q8a7 Rd1 Qaa5 Rh8 Kg6 f5 Kf7 f4 e7 Qg1 e8R Ne7 g8B Bd3 Kf6 Bc2 Be6 Ng6 Bg4 Qg3 Qab5 Bb1 Qd3 Rg8 Qf5 Nh8 Qa6 Rf1 Qe2 Qa6 Rd1 Rf3 Qb2 Qb5 Rdd3 Ne6 Rd2 Kd7 d6 Kc6 d5+ Kb7 d7 Nd4 d8Q Ne2 d6 Nc3 d7 Ka7 Rd5 Bc2 Qe6 Bh7 Qde7 Rd3 d8Q Rf3 Qf5 Rd3 Nf1 h2 Qdd7 Rf3 Qee6 Rd3 Be4 h1R Nh2 Rf1 Bg2 Rff3 Bh1 Ra1 Qee4 Rb1 Qee6 Bh6 Ke7 Bf8+ Kd8 Bh6 Rf8 Bb7 Ke7 Ba6 Rf7 Ra8 Rf8 Bc8 Re8 Bf8+ Kd8
B1RQ4/qPK2Bnp/Q2N3k/1R3rr1/1qB2Q2/2b1n2r/1B3p2/rb2NRn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 f5 d4 Kf7 b4 Kg7 e4 a5 g4 h3 b6 h2 e5 c4 b5 c3 e6 a4 d6 c2 b7 a3 d5 a2 e7 Ra4 e8B Rb4 b6 Qd7 g5 Ne7 g6 Rb5 Nd2 Na6 b8Q Nc7 Ne4 Ne6 Bf7 Rg8 Bb2+ Kh6 g7 c1N Qe2 Qa7 Rb1 a1R d7 Rb3+ Qd3 Ne2 d6 Nd5 d8Q Ne3 d7 Bb4 Bg2 Bc3 Qa6 Rb5 Qbc7 Rf8 g8B Ng7 Nd6 Rba5 Kf2 f3 Bc4 Bb7 Bgf7 Be4 Rf1 Bb1 Qcb8 Nc1 Kg3 f2 Ba8 f4+ Kf3 Rg8 b7 Ne2 Qbc7 Rf5 Qcb8 Ba2 Ke4 f3 Rb1 f1R Qbc7 f2 Nf3 Rc1 Rf1 Ng1 Ne1 Rd1 Qcb8 Rd3 Qbc7 Ng2 Qcb8 h1Q Qbc7 Rh3 Qcb8 Rff3 Kd5 Rf5+ Kc6 Ne3+ Kc7 Qh2 Rd1 Qe5 Rd5 Bb1 Rb5 Qed4 Qf8 Qd1 d8R Qb3 Rc8 Qb4 Qe8 Nh5 Qe5 Rgg5 Qf4 Ng7 Kc6 Rg3 Qc7 Rf3 Qd8 Rh3 Kc7
RNbQ2R1/1pN2r2/2Rq1qnb/bK2P2b/N1r5/q1B4n/BpB1Q3/1B2k3 b - - 0 1 illegal: No possible last move
1bn4R/1p1q1Nn1/4q2B/Qp6/R3nb1P/1NNr1Q1b/1K5R/rBnN1B1k b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 a6 b4 Bf5 b5 axb5 Kf2 Be6 Ke1 Bc8 h4 Kd7 a4 Kd6 d4 f5 Kd2 c5 Kc2 g5 e4 f3 a5 f4 a6 g4 a7 f2 h6 g3 h7 c4 Ra3 g2 Re3 c3 Re2 f3 Bh6 Nc6 Nh3 g1B Rh2 Qb6 Rg2 Nce7 Rg4 Bh2 e5+ Kc7 e6 Kd6 Ree4 Bf4 Rg2 Nf5 e7 Ng7 e8B Ne7 Bg6 Qa6 Kb3 c2 Nc3 c1N+ Kb2 Be6 Qe2 Nc8 Bf5 Rg8 h8R Be7 Qd3 Rd8 Qd1 Qc6 Qb3 Qd7 Qa3+ Kc7 d6+ Kc6 Qb3 Bf6 d5+ Kc5 Ra4 B6e5 Bb1 Bf5 Ng1 Bh3 Ne2 Qe6 d7 Bb8 Nd4 Kd6 Nc2 Ke5 d6 Kf5 Ne3+ Ke5 Bfd3 f1N Ned1 Ng3 Bf1 f2 Qa3 Ne4 Qb3 Re8 d8N Qd7 Ne6 Rd8 Nd4 Qe6 Bfd3 f1Q d7 Qe1 Bf1 Qd2+ Qc2 Qd3 Nb3 Qdd5 Qd3 Kf5 Rf2 Kg4 Qe2+ Kg3 Rh2 Rf8 d8N Qdd7 Nf7 Rd8 Qh5 Qde7 Rd2 Rd3 Rf2 Q7d7 Qe2 Bg2 Qf3+ Kh2 Rd2 Kg1 Rc2 Bh3 Rg2+ Kh1 Qg4 Bbc7 Qf3 Rb8 a8Q Bce5 Qa5 Ra8 Rc4 Bd6 Qb6 Ra4 Qa5 Ra1 Ra4 Bb8 Rh2+
1qk1Q3/Rppq1N1q/Q5B1/r2N2rN/2RNq2n/2b5/RB1rP3/1b2K1Qn b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 d4 Kd7 a4 g5 h4 f5 d6 f3 a5 f4 a6 g4 a7 b3 h6 g3 h7 g2 h5 b2 d5 Ne7 h6 Nf5 Rh4 Na6 Nh3 g1R Ra2 Nb4 Nc3 b1Q Bb2 Rg5 Bg2 Qe4 Bh1 Rhg8 h8Q Bg7 h7 Be5 Rg4 Nh4 Qf6 Qe7 h8Q Q7h7 Qd4 Rd8 Qg1 f2+ Kd2 f3 Nf4 f1Q Nh5 Qeb1 Rc4 f2 Be4 Qh3 Bg6 f1Q Qhf8 Qbf5 Q8h8 Q1f3 Ke1 Q3e4 Qhf8 Qe6 Qg8 Qe8 Qgf8 Rb8 a8R Qhf5 R8a7 Nd3+ Kd1 Nf2+ Ke1 Ra8 Qg8 Qf8 Qgh8 Re8 Qe6+ Kd8 d7 Nh1 Qa6 Re6 Qg8 Rd6 Qh8 Ke7 d8N Qd7 Ne6 Bf6 Nef4 Kd8 Nb5 Bd4 Kd1 Bc3 Nd4 Qc6 Qg8 Bf5 Qh8 Rd7 d6 Kc8 Nd5 Rd8 Qe5 Qcd7 Qe8 Qee6 Ra1 Bb1 Ra2 Qe4 Nc2 Qfe7 Qa3 Qa4 d7+ Kb8 Ndf4 Q7e6 Ra5 Qa6 Qd6 Qa7 Qde6 Rc8 d8N Qac6 Nf7 Rd8+ Qd6 Kc8 Ra6 Qb8 R6a4 Raa5 R4a3 Rac5 Ra7 Bg7 Kd2 Ra5 Ke1 Qcd5 Qa6 Qb5 Qe5 Rd2 Nd5 Qd7 Qe7 Bc3 Nd4 Re5 Qee6 Rg5 Qe8+
2BKQBk1/P5Q1/p6b/1R1n2rQ/p3n3/R1r1N1N1/q1rQ1q1r/1b3BbN b - - 0 1 illegal: No proof kernel
1Qn1bb2/P1pQ2nq/pq2BBr1/R1R1N1nn/4NqBK/N1B2Q2/2k2r2/8 b - - 0 1 illegal: No proof kernel
Q1kq1b2/p1br1bnB/B1q5/Q3PBr1/Q2R2N1/1p3N1K/R2Bn2b/4q2N b - - 0 1 illegal: No possible last move
q1R4b/p3R3/Pn5B/KQ1bR1Qb/pQRrNn2/1r6/1qr2B2/1NN2r1k b - - 0 1 legal: proof: e4 g5 a4 d5 h4 gxh4 c4 f5 cxd5 Nf6 exf5 Ng8 a5 b5 Bd3 Nh6 Bc2 Ng8 Ba4 bxa4 Ra3 Kf7 b4 Kf6 f4 h5 d4 e5 Kd2 c5 Kc3 e4 g4 e3 d6 e2 a6 e1R b5 c4 Kb4 h3 d5 h4 b6 h2 g5+ Kg7 g6 Kf6 g7 c3 b7 c2 Qd3 h3 Be3 c1R Rc3 Rh6 Ne2 Qe7 Bf2 Rg6 Ka5 Rg4 d7 Qa3 d8Q+ Ne7 d6 Qb2 d7 Rc2 Nc1 Reg1 g8R Bg7 Re8 Bh8 Rc7 R4g3 Qb5 Rb3 Qb4 Rd1 Rc4 Re1 Rg1 h1Q Rg5 h2 Qdb6+ Qc6 d8Q h1B Q6b5 Nd7 b8N Nb6 Qdd5 Ng6 Re7 Be6 Qdc5 Bf7 Nd7+ Kg7 f6+ Kh6 f5 Nf4 Qd5 Rf1 Nc5 Bh5 f7 Rd8 f8R Qa8 f6 Bg2 Qe5 Rd4 f7 Bc6 Rf5 Bd5 Rc8 Kg6 Qe4 Kh6 f8B+ Kg6 Rfe5+ Kf6 R5e6+ Kg5 Re5+ Kg4 Qf5+ Kf3 Bh6 Kg2 Qg5+ Kh1 Ne4
3Nbr1b/p1NQ1qp1/R1qB4/3r1Rn1/nNP2B2/bB4Q1/n1nk1QK1/3N4 b - - 0 1 illegal: Other
r2n4/p1kp2q1/3bRBN1/Qqb2N1Q/R2n4/4R3/2QPBb1B/1b1KQqr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 h4 g5 c4 f5 e4 g3 h5 g2 c6 f3 c5 g4 e5 f4 e6 g3 h6 Bb7 b6 Nf6 e7 Qc8 c7 Nd5 h7 Bg7 c6 Ba6 b7 Qd8 c8Q Be5 c7 Bd6 Rh6 Ne3 Nc3 Nf5 Nh3 g1B Nb5 g2 Re6 Nc6 b8B Bgc5 Bb2 g1B Be2 Rg8 h8Q Nfd4 Qh5+ Rg6 Qc1 f2+ Kd1 f3 Nf4 Bb7 Ra4 Ba6 Nc3 Bd3 Qa6 Bb1 Ncd5 Qc8 Ne3 Nd8 Qa5 Qb7 c8Q Qb5 Qh4 f1Q+ Qe1 f2 Qc2 Rg4 Ng6 Qg2 Nf5 f1Q Qb7 Be3 Qf3 Bf2 Qh3 Qg3 Qh5 Qe5 Bc7 Qg7 Re3 Rg1 Bc3 Nf3 Be5 Nd4 Bh2 Kf7 e8R Kf6 R8e4 Kf7 Be5 Ke6 Bf6+ Kd5 Re7 Kc6 Re8 Bf8 Bf4 Bd6 Bh2 Kb7 R8e6 Kb8 Qb4 Kc7 Qa5+
1R1B1rR1/3QKN2/1q1r2p1/2b1NQ1r/4p1N1/2rnr2P/bQ3rnQ/R2k3B b - - 0 1 illegal: No possible last move
rrb3B1/Rn2Q3/p1Qq4/R1BN3K/rBQ1r2b/4n1B1/1kPrpr1N/1N6 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 b4 h5+ Kg5 d5 g4 d3 f4+ Kd4 b6 e5+ f6 a6 f5 h3 b5 e4 b7 h4 b6 e3 Ra3 d2 Qf3 d1R Bd2 h2 Bc4 e2 Bb4 h3 Ra5 Nc6 b8B Nh6 b7 Be7 Bg3 Qd6 b8Q Rf1 Kh5 Nd8 g5 Rf2 f7 Nb7 g6 Bh4 f8B Rg8 f6 Nf5 g7 Ne3 Be7 Re8 Bf8 Re4 Qc7 Rb8 g8N Ra8 Na3 Rb8 Bc5+ Kc3 f7 d4 Ne7 d3 Nd5+ Kb2 Nb1 d2 Qc6 d1R Qg4 Rd3 Nf3 Rd2 Rf1 h1R Nh2 Ra8 Be7 Rg1 f8Q Rgg2 Qd8 Rf8 Rf7 Rf2 Bb3 Ra4 Qc4 Rb8 Nf3 h2 Bb4 h1R Nh2 Re8 Bf8 Re4 Be7 Qf6 Bec5 Qd6 Rd7 Rhf1 Qe7 Rf8 Rc7 R1f2 Ba2 Bh3 Rd7 Ra8 Rc7 Rfb8 Bb3 Bc8 Ba2 Nd8 Ra7 Nb7 Nf6 Rf3 Qc3+ Kc1 Bg8 Rf2 Qc4 Kb2 Nd5
rr3bN1/1n1pR3/2NQQRNb/2k1Pp2/R2R1qB1/2bb1b1K/1Bb5/1B1n4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kg2 Kd6 b4 a5 h4 f5 c4 g5 e4 g4 e5+ Ke6 b6 a4 b5 a3 h6 a2 b7 d3 h5 g3 h7 f3+ Kh3 d2 b6 g2 c5 Kd5 h6 f2 c6 Ra6 c7 Kc6 Nc3 Ra4 Bb2 Na6 b8Q Nf6 b7 Rb4 Nf3 g1B Be2 Ne4 Nd4+ Kc5 Nc6 Bd6 Qb3 d1B Qe6 Qe7 Nd5 Bb3 Nf6 Ra4 Bg4 Qf7 Ng8 Bf8 Rd1 a1B Rd4 Ra5 Ra4 Bh2 Rd1 Nc3 Rdd4 Nd1 Qa7+ Kb5 b8R+ Bb7 c8B Bf4 Ra8 Bc2 Qb8 Kb6 Qc7+ Kc5 Rb8 Ba8 Rb6 Rb5 Bb7 f1B+ Kh4 Bfd3 Kh3 Nb8 Ba6 Rb4 Bc4 Na6 Ba2 Qf6 Bb1 Qg5 Nf6 Rg8 h8R Be3 Rh7 Qf4 Re7 Rb5 Bc1 Bc3 h7 Rb3 h8N Ra3 Rb2 Rb3 Ng6 Rb8 Rb6 Bb7 Nd8+ Bc6 Bb2 Bed2 Qa7 Bf3 Nc6 Ra8 Nh4 Qe4 Nd8 Bdh6 Rc6+ Kb5 Qd5+ Nc5 Qc7 Rg6 Ng8 Qf4 Rca6 Re6 Ng6 Rb6 Qa2 Rbb8 Rf6 Nb7 Nc6 Kc5 Qf7 Bb4 Qe6 Bc3 Qcd6+
RQ4Bn/2B1n2n/2Rb1r2/B1Rrn2k/pr6/pN1r1b2/Q2qBKP1/1N4Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 bxa4 c4 e5 cxd5 exf4 e4 f5 d4 Kf7 b4 Kg6 e5 h5 d6 c5 b5 a5 b6 f3 b7 f4 d7 a3 e6 c4 d5 a4 d6 f2+ Ke2 f3+ Ke3 c3 e7 h4 e8R c2 Bd2 c1N Qe1 h3 Rh2 Nh6 Qd1 Nf7 Be1 Kh5 g6 Nd3 g7 Nde5 g8B Ra5 Bd2 Rd5 Re6 Nbc6 b8B Bb7 Bb5 f1R Bc7 Ne7 Ne2 f2 Bda5 Rh6 Bd3 Rf6 Nd4+ Rf3+ Ke2 Nh8 Nb3 Rh1 Ba6 Rfd3 Qg1 f1R Ra2 Bc6 Rc2 Rf6 Rc5 Bb7 Qe3 Rc1 Qg1 Rc4 Rh1 h2 Bb5 Qe8 d8Q Rb4 Qb8 Qd8 d7 Ba8 Rec6 Bb7 Qd4 Ba8 Re1 h1N Qg1 Nf2 Ba6 Nh3 Bc4 Qe8 d8Q Ng5 Qdc8 Nh7 Qe6 Qd8 Rf1 Nf5 Kf2 Be7 Re1 Bd6 Re3 Ne7+ Rf3 Nd7 Qe2 Ne5 Qa2 Bb7 Rf4 Bc8 Bb5 Bg4 Ba6 Bf3 Rg4 Rc3 Be2 Rcd3 Rg7 Qf8 Rf7 Qh6 Rf8 Qc1 Qb6 Qh6 Ra8 Qd2 Qb8
3R1n1n/1k2QBN1/1b1BB1r1/3rpK1p/RQ3n2/1rR4Q/3NbP1R/1nr1q3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 g4 h5 b4 a5 d4 e3 g5 e5+ Ke4 h3 g6 e2 b6+ Kb7 b5 e1N g7 a4 d6 a3 d5 h2 d7 c4 d6 a2 Qd3 c3 Ba3 c2 Nf3 c1R Nh4 Ra6 Nd2 Ng2 Qh3 Nh6 g8B Nf7 Bc4 Nf4 Nf5 Qg5 d8Q Qg1 d7 Bc5 Ng7 Qe1+ Kf5 Ra5 Qd3 Rh6 Qh3 Rg6 Qe7 Nh8 Bce6 Rb1 d8R+ Nd7 Bgf7 Rb3 Rc1 a1N Rc3 Nc2 Bb4 Be3 Bc5 Na3 Bd6 Ka8 b7+ Ka7 b8R Ba6 Rg8 Bb6 Rbd8 Nb1 Ra8+ Kb7 Rgd8 Bd4 b6 Be2 Ra6 Rd5 Ra4 Bc5 Qe8 Nf8 Qe7+ Kc6 b7 Kb6 Rg1 h1R b8Q+ Kc6 Rgg3 Rf1 Qb4 Rg1 Rcf3 Bb6 Rg2 Rf1 Rh2 Rfg1 Qe8+ Kb7 Rc3 R1g3 Rc6 Rgc3 Rc5 Rc2 Rc3 Rc1 Qe7+
1Nb1Q2B/Rn3n1Q/K1N1rPnr/1Q1p1kp1/1rN3BR/4n3/R1N4r/2b3q1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Kc4 e5 h4 a5 f4 g5 b4 e4 b6 d5+ Kb5 d3 c4 g3 b7 g2 h5 a4 h6 d2 c5 a3 h7 e3 c6 e2 c7 e1N Bb2+ Ke7 f6+ Ke6 f7 a2 f5+ Kd6 Qb3 d1R Na3 Nc2 Ne2 g1R Nd4 Ke5 Bh3 Rge1 Bg4 Nd7 b8N Rd2 Rh4 Ne3 Nc4+ Ke4 Nc2 Ne7 Qa4 Ng6 Nc6 Nde5 Bd4 Be7 f8R Rh2 Rf7 Rb8+ Ka5 Bf8 b5 Ba3 b6 Bc1 b7 Qd7 Rg7 Nf7 Qb5 Qe7 Ka6 Qc5 Rb1 a1N Rb2 Kf4 Ra2 Nb3 Ba1 Na5 Bc3 Rd8 h8Q Rd6 Qh7 Re6 Bd4 Reh1 Ba1 Qd4 Bb2 Qd1 Bd4 Qg1 Bf6 Bd7 c8Q Ke4 Qe8 Bc8 Rg8 Kf4 Bh8 Ke4 f6 Kf4 Rg7 Ke4 Bd1+ Kf5 Rd4 Rh6 Rh4 Rh2 Kb6 Ra8 b8N Nb7 Be2 Ra4 Bh5 Rb4 Ka6 Nfd6 Rc7 Nf7 Re7 Nbd6+ Rb7 Bd7 Ra7 Nb7 Be2 Bc8 Bg4+
nqB1Nb1B/2RQ4/1NKPR1B1/2b2bQ1/k1b3p1/n1nB3Q/3r1N1p/3n1r2 b - - 0 1 illegal: No proof kernel
3r1N2/R1RR1nNK/1p1pn1P1/bbbN4/2Q1NB2/4r2k/nn2Bbq1/5Q1Q b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Ke2 Kf7 Ke3 Ke6 Kf4 h5 g4 d6 a4 b3 c4 b2 a5 h4 a6 b6 g6 h3 Kg5 h2 f4 e3 g7 e2 Kg6 e1B c6 Bb7 a7 Nh6 g8Q+ Nf7 c5 Rh3 g5 Nd7 c7 Bc6 c8N Bh6 Nd2 b1N Be2 Bb5 c6 Nc3 c7 Na2 Ngf3 Bf2 Qf1 Nc5 Kh7 Kf5 g6 Kg4 f5 e5 f6 e4 Ne7 e3 c8R Ne6 Rc7 Qd7 Nd5 Qc6 Rd7 Rd8 a8Q Rg3 Rg1 h1N Ne4 Bf4 Rg2 Kh3 Nh4 Be5 Bd2 Bd4 Nf5 Bc5 Ng7 Rf3 Bc4 e2 Bf4 e1B Be2 Ba5 Qb7 Nh6 f7 Re3 f8N Nf7 Rc1 Bg3 Rc3 Nf2 Ra3 Nd1 Ra4 Bab4 Ra7 Bf2 Qa8 Nb2 Rg5+ Kh4 Re5 Ba5 Rf5 Nh8 Rff7 Qb7 Rc7 Qc6 Rfd7 Nf7 Ne7 Qd5 Qc6 Qg5 Nd5 Qg2 Qa8 Kh3 Qc6 Bcb4 Qh8 Ba3 Qc4 Bc5 Kg8+ Bh4 Bd3 Kg4 Qh7 Bf2 Qhh1 Bg3 Kh7 Bf2 Qhg1 Kh4 Be2 Kh3 Qh1#
r1RB1kNQ/q1r2bPb/1R2b3/2R2pr1/rnQ5/1p4bB/5N1Q/1Q2Nn1K b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 b5 a4 c5 g4 h5 Kg2 f5 d4 b3 e4 h4 e5 b2 g6 c4 d6 c3 g7 b4 d5 b3 e6 c2 g5 Ba6 g6 Bb7 a5 Bc6 a6 Nf6 g8N Ne4 e7 Qc7 a7 Bd7 Ra6 Rh5 Nd2 b1R Ndf3 Be6 Ne1 Ng3 Nh3 Nc6 Nf2 Rg5 Rb6 f3+ Kh2 Qb8 Bh3 Nb4 Bf4 Ra1 Qb1 c1R Be3 Rh5 Bg5 Rc7 Rg1 Nf1+ Kh1 Ra4 Rg4 Bc8 Rc4 Be6 Rc5 Bh6 Bf6 Bf4 Bg5 Bg3 Bf6 Kd7 e8R Rg5 Rc8 Bf7 Bd8 Ke8 d7+ Kf8 Bg2 h3 d6 h2 Bh3 Be6 Ned3 Qb7 Ne1 Rb8 a8Q Qa7 Qae4 Ra8 Nfd3 f2 Qg4 Ne3 Qc4 f1B Nf2 Be2 Qbc2 Nf1 Qb1 Kg7 Be7 Bd3 d8Q Be2 d7 Bf3+ Bg2 Bfd5 Qe8 Bf7 d8Q Bde6 Qeb5 Nd3 Bh3 Nb4 Nf6 Bg8 Qbd7 Bh7 Ng8 Bf7 Qd2 Be6 Qe8 Bf7 Bd8 Be6 Qed7+ Kf8 Q7d4 Bf7 Qh8 Be6 Kg2 h1B+ Kg1 Bc6 Qdf4 Bb5 Kh1 Be8 Qh4 B8f7 Qhf4 Bh4 Qh2 Bg3 g7+
3B1Q2/1Q1rr1p1/BbRp3N/1r4rq/Bb4RN/nPNKQ1b1/2Bn4/6kb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 e4 Ke6 h4 a5 c4 f5 h5 g3 c5 a4 b6 d3 c6 a3 h6 g2 c7 a2 h7 f4 b7 f3 b3 f2 Nh3 g1B Qf3 Ra5 Bg2 f1R Qe2 Rf5 Qe3 Na6 b8Q Rb5 Qb7 Qg5 Nc3 Bb4 Nf2 Qh5 Rh4 Nf6 Rg4 Re8 h8N Re7 Ng6 Rg5 Nh4 Bh2 Ba3 Bg3 Rc1 a1B Bf3 Bb2 Bd1 Ba1 Bc2 Bb2 Qa8 Bb7 c8B Nc7 Qb8 Bd5 Ba6 Ba8 Qb7 Ba1 Ke1 d2+ Ke2 d1R Bb2 Ncd5 Ba3 Nb6 Bb2 Nc4 Ba3 Nd2 Kd3 Ne8 Bb2 Nd6 Ba3 Kf7 e6+ Kf6 Bb2 Ke5 Ba3 Rf7 e7 N6c4 e8Q+ Re7 Qf8 Bb2 Na4 Bd4 Nc3 Bdc5 Bb2 Bb6 Ba3 B4c5 Bb4 Na3 Ba5 Ba7 Bd8 Bb4 Rf4 Bb6 Ng4+ Kd6 Nh6 Ke5 N4f5 d6 Nh4 Rf1 Rg4 Rff7 Qa7 Bd5 Qb7 Rd7 Rf1 Rfe7 Rff4 Ke6 e5 Bh1 Rc4 Ne4 Rc6 Nd2 Ne4 Kd5 e6 Rf7 e7 Ke5 e8B Rfe7 Qef3 Kd5 Ke2 Kd4 Qe3+ Ke5 Bf7 Ra5 Bfc4 Rd5 Qef4+ Kd4 Bcb5 Rde5 Ba4 Ref5 Kd1 Rb5 Qe5+ Ke3 Qe6 Qf7 Nc3+ Kf2 Qe4 Kg1 Ke2 Qe8 Kd3 Qh5 Qe3+
K1B2nb1/B1p2BQ1/1Rr1b2R/nPN2NbQ/8/n1bQpnq1/r7/4NN1k b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 b4 e6 g4 h3 f5 a4 f6 a3 b6 e3 f7 e2 b5 e1N b7 h2 g5 h4 g6 h3 g7 a2 Qh5 Nd7 b8N Ne7 g8B Bh6 f8Q Bg5 Nf3 Rh6 Qg7 Nf8 Na6 e5+ Kc4 e4 d4 Nc6 Bf7 Be6 Be3 Rf6 Nc5 Nc2 Ne1 Qb8 Nd2 Na3+ Kc3 Na5 Kb4 Qc8 Bg2 Qa6 Nf1 Qb6 Rd1 a1B Bf3 Ra6 Bg4 Bc3+ Ka4 Qb7 Rd2 Rc6 Rf2 Rh6 Rf6 Rh7 Rh6 Qc8 Rg1 h1B Bf5 h2 Rg3 Bh4 Rgg6 Bg2 Bg4 h1N Bh3 Nf2 Rf6 Ng4 Bf2 Ke7 d6+ Kd8 d7 Ke7 d8N Kd6 d5 Ne5 Bf5 Nf3 Ndb7+ Ke5 d6 Kf4 d7 Bg5 d8Q Bh1 Bd4 e3 Nd6 Bg2 Rfg6 Bh3 Bg4 Ba2 Bd7 Bhe6 Nf5 Qa8 Bc8 Rh8 Be8 Bg8 Bf7 Be6 Nb7 Qa6 Ba7 Qb6 Qd3 Qc5 Qh1 Qd6 Nc5 Kg4 Qh2 Qg3 Qh1 Nh4 Qf3+ Kh3 Qh5 Rh7 Nf3 Kg2 Ne1+ Kh1 Rf6 Ra6 Rfg6 Bd7 Rb6 Be6 Rb7 Rd6 Rb6 Rc6 Rg6 Be7 Qhd1 N5c4 Qg4 Rh5 Rh6 Nf3 Q4g5 Rh2 Qh5 Bd4 Kb4 Bg5 Ka4 Ncd2 Ka5 Ndc4+ Ka6 Bc3 Kb7 Na5+ Ka8 Be7 Nh4 Ra2 Nf5+ Bh4 Nh2 Bg5 Nf1+
2r1Q3/1p3Q2/rqk3R1/2B1nRQ1/n1NRnK2/1PBp1NN1/2Q2rb1/2r2nb1 b - - 0 1 illegal: No possible last move
Nb1nn1r1/p2n1rNN/1Qq2BbR/3Rr3/1Rr3B1/2kp2B1/P6Q/B3n2K b - - 0 1 legal: proof: e4 c5 d4 e5 g4 f5 dxe5 fxe4 b4 h5 bxc5 hxg4 h4 Ke7 f4 Ke6 Kf2 g5 Kg2 d5 c4 b5 f5+ Kd7 f6 Ke6 h5 e3 c6 e2 c5 e1R h6 g3 f7 d4 c7 Kd5 e6 b4 e7 b3 e8N d3 h7 Kd4 c6 g4 Rh6 b2 Kh1 Ne7 Bg5 Nd7 Qb3 Rg8 h8B+ Re5 Ng7 Qe8 Na3 b1N Nh3 Nd2 Nc4 Ne4 Qb6+ Kc3 Bf6 Nd6 Ng5 Rb8 Be2 Rb7 Rb1 g2+ Kh2 g1N Kh1 g3 Bg4 Nf3 Nh7 Ne1 Rb5 Nc5 Rb2 Bf5 c8Q Bg6 c7 Nc6 Qb8 Nd7 c8R Nd8 Rc5 Be7 f8B g2+ Kg1 Rc7 Rd5 Rc6 Kh2 g1R Q8c7 Rg2+ Kh1 Rf2 Qcb8 N6b7 Q8c7 Bd6 B8e7 Rf5 Bh4 Rf6 Bg3 Rf7 Bf6 Qe6 Qa6 Rc5 Nb6 Rc4 Na8 Qe8 Qcb6 Bb8 Qg1 Nd6 Qab6 Qe6 Qh2 Ne8 Rbb5 Nd6 Bfh4 Re2 Nf5+ Kc2 Ba1 Ne8 Ng7 Qc6 Rb2+ Kc3 Bf6+ Re5 Rb4#
Q3R3/QBQ1K1p1/3r2P1/Np2kN1B/b1nq4/2B3qn/1N2Rb1q/Bq1n2q1 b - - 0 1 illegal: No proof kernel
N7/1BBqrQn1/1rn2NR1/4pN1n/1Q2P1QR/qR2nK2/4n1pq/b2Rk3 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 c4 Kf7 f4 Kg6 b4 a5 e4 d5 Ke2 h5 g5 d3+ Kf3 a4 c5 h4 c6 Kh5 g6 a3 g7 a2 f5 h3 b6 Kh4 b5 h2 f6 d2 b7 d4 f7 d3 c7 Ra7 c8N Nf6 g8R Qd7 b6 Bg7 f8Q Rh6 Nc3 Nc6 b8R Nh5 Nge2 g1Q b7 g2 Rb1 a1Q Qf7 Qa3 Nd5 Ba1 Nd4 Ng7 Ncb6 e5 Nf6 Rg6 Na8 Kh3 Qe2 d1N Be3 d2 Rbd8 Nc3 b8Q d1N Rb3 Rb7 Bg5 Ne3 Nf5 Rc7 Qd1 Ne2 Bh4 Ra7 Be1 Rc7 Ba5 Rb7 Bc7 Rb6 Ne8 Re6 Nf6 Re7 Qb7 Ng3 Ba6 N3h5 Rb1 Qe1 Rb3 Qh4 Rf1 h1N Rh8 Qc8 Rd2 N1g3 Qb8 Qe6 Bb7 Qd7 Rh6 Ne2 Rg6 Kh2 Qbf8 Re6 Qb4 Re7 Qc1 Kh3 Qcc4 Kh2 Qce6 Kh3 Rc1 Kh2 Rcc3 Kg1 Rcd3 Kf1 Rd6 Qh1 Rg4 Qh2 Rh4 Qd8 Qc8 Qd7 Qcg8 Ne6 Qg4 Ke1 Ng8 Ned8 Rg6 Ne6 Nf6 Neg7 Rd1+
RBnKb3/NpRp1QQN/kq1P4/1N2q2B/3b1B1n/q4b2/2r2q2/qQN5 b - - 0 1 illegal: No proof kernel forced: wxLB
5n2/1KB2Qn1/NB3rb1/2Q1RpB1/2r1BPp1/n3Rn2/N1n1q1N1/knnQ4 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 e3 d5 Qf3 d3 Qf5 d4 Qf3 e6 Qd1 Be7 Bh3 d2+ Kf1 d3 Kg2 Rh5 Qe1 Bf6 Qd1 Bd4 exd4 Re5 Kg3 Rc5 Bf1 Rh5 Kg2 Rh8 f4 Ke7 b4 Kd6 c4 g5 h4 a5 b6 e5 d5 a4 h5 a3 b5 Kc5 b7 Kd4 b6 a2 h6 g3 Kf3 e4+ Kg2 e3 Kf3 g2 d6 e2 h7 Bf5 d7 Ra6 c5 Nf6 c6 Qe7 d8B Nh5 c7 Bg6 c8Q Nd7 b8B Ng7 b7 Nf8 Rh5 Rf6 Nc3 Rg8 Rb1 a1N h8Q Nc2 Rb3 Na3 Na2 Qe6 Qh7 e1N+ Kg3 Qe5 Bbc7 Nec2 b8N Qe2 Na6 g4 Nf3+ Kc4 Re5 g1N Nh4 Nf3 Ng2 Rh8 Qg8 Rh6 Qh7 Rc6 Be7 f5 Bg5 Kd4 Qg8 Rc3 Qf7 Rc4 Qe1 d1N Qd2 Nf2 Qd1 d2 Rbe3 Qe1 Bd3 Qe2 Be4 Nd3 Bb2+ Rc3 Ba1 Nc1 Bb2 Nb1 Ba3 Rc4 Bb4 Nba3 Bba5 Rc6 Bab6+ Rc5 Qe1 d1N Qh1 Nc3 Qd1+ Qd3 Kf2 Ncb1 Qfe8 Kc4 Qed7 Kb3 Qf7+ Nfe6 Qcf8 Kb2 Qd6 Qb5 Qc6 Rc4 Qc5 Nb3 Ke2 Ka1 Kd3 Nf8 Nc1 Rb4+ Qfc4 Bh5 Na2 Ra4 Bb8 Rf6 B8c7 Qa5 Q4d5 Bg6 Qf7 Qe1 N6b4 Nb5 Kc4 Qe2+ Kd5 Nba3 Na6 Rb4 Nc3 Nc1 Na2 Nge6 Kc6 Ng7+ Kb7 Ra4 Bd3 Rc4 Be4
1Q1N4/n3R1BK/2qp1pn1/qN1Pqr1b/QB1Qb3/5RBB/1bq4k/2n1R3 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 a4 g5 h4 gxh4 b6 Ra6 b7 Rg6 b5 Rg5 b6 Rb5 axb5 a4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 c5 d4 f3 e3 h3 g5 h4 g6 h2 g7 f2 Nf3 a3 Nc3 f6 Qa4 a2 Ne5 h3 Nf7 Nc6 b8Q c4 b7 Rh5 b6 Na7 Nb5 Ne7 g8Q c3 Qg1 c2 Ba3 c1N Bb4 Rc5 Rb1 a1Q Rb3 Rg5 Kf4 Rc5 e4 Ng6+ Kg4 Be7 Rf3 Rf5 e5 Qa2 Bg2 f1Q Qf2 Qfe2 Re1 Kd5 e6 Ke4 d5 h1Q Qg1 h2 Bh3 Qc2 Qf2 Qdc7 Nd8 Q7c6 Qc5 Bd6 e7 Be5 e8R Qf1 Re7 h1B Qc3 Qf2 Qb2 Qfc5 Qc3 Rf4+ Kh5 Rf5+ Kh6 Bg2 Rg3 Kf4 Qd4+ Be4 Rb3 Qe3 Kh7 Kg3 Ra3 Kh2 Rd3 Qf4 Rf3 Qe2 Qd6 Qd1 b8B Qdc2 b7 Q5b6 Bc7 Qa5 b8B Ba6 Bb6 Bc8 B6c5 Ba6 Qc4 Bb2 Qd4 Qe5 Bc7 Qb7 Qb6 Qc6 Qb8 Bc8 Rf7 Ba6 Bf8 Bc8 Bg7 d6 Bb6 Bd7 Re7 Be6 Qc4 Bf7 Bf2 Nf4 Qd4 Bh5 Bh4 Ng6 Bg3+
rq4Q1/2NB2pK/3p1NR1/1bnrbQ2/2RPNB1b/Nk2B3/4b3/3qrR1q b - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 hxg4 a5 Qg5 a6 Nc6 b6 Nd8 b5 Nb7 axb7 Qd8 Kf2 Ke7 b8Q Kd6 e4 Kc5 h4 Kb4 h5 c5 d3 f5 e5 a5 e6 a4 e7 g3+ Kf3 c4 e8N c3 b7 g2 h6 c2 b6 a3 h7 a2 Na3 Be7 Nf6 Kb3 Nh3 g1Q Nf2 d6 Rh4 Qf8 Bh3 Bd7 Qf1 Bb5 N2e4 Qc8 Be3 c1Q Qf2 Q1c2 Rf1 a1B Rh6 Bc3 Rg6 Be5 d4 Q8c7 Qc8 Qc1 b8N Qa7 Na6 Qb8 b7 Qh1+ Bg2 Qe1 Nc7 Bd8 Nfd5 Bh4 Ndf6 Ne7 Qe8 Nc6 Qd8 Rf8 h8R Nb4 Qe8 Rf7 Qg8 Na6 Rh5 Nc5 Rh8 Qc8 b8B Qd2 Ba7 Qb8 Bb6 Qc2 Ba5 Qd3 Qh7 Re7 Rc8 Qd1+ Qe2 Rf7 Be1 Rf8 Bg3 Re8 Qg8+ Re6 Kf2 f3 Bh3 f4 Qe1 Bd3 Qa5 Be2 Ncd5 Re7 Bf5 Rb7 Bd7 Rb5 Nc7+ Ne6 Na6 Rd5 Rc4 Nc5 Nc7 Qd3 Ke1 Qb1+ Kd2 f2 Bh2 f3 Bhf4 Qa1 Rfg1 f1R Qb5+ Ka2 Kc2 Re1 Rf1 f2 Kd2 Ne6 Qc5 Kb3 Qa5 Bg4 Kd3 Nc5+ Kd2 Be2 Rgg1 Ne6 Ng3 Rb5 Rg2 Rb7 Qd5 Rb5 Qe4 Bd1 Kd3 Rc5 Qeh7 Rca5 Ke4 Be2 Kf5 Rd5 Kg6 Nc5 Nge4 Qd1 Qh5 Qf8 Qf5 Qb8 Ra4 Bb5 Kh7 Be2 Rg6 Bb5 Rfg1 f1B Rc4 Be2 Rf1
1Q1B2nK/k1b2q1B/1pBb1p2/6Qn/1P1R1q2/1b1QN1Q1/1bRN4/nqRr4 b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 a5 d5 cxd5 b6 a6 Nc6 Rh2 Rb8 Rh1 Rb7 axb7 Nb8 Ra5 a6 Ra1 a5 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 h5 d4 a4 g4 a3 b4 a2 e4 f3 g5 h3 g6 h4 g7 c4 Qd3 c3 Bg5 h2 Ne2 c2 Nd2 c1B Nc3 h3 Nd1 f2 Ne3 Na6 d6+ Kb8 d5 Be6 d7 Ka7 d6 Qe7 d8R Nc5 d7 Nb3 Bf6 Ba3 Rc1 Na1 Rc2 Bb3+ Kf5 Bb2 e5 Rh4 e6 Rd4 Bg5 Qd6 e7 Qg3 e8Q Bd6 Bg2 f1Q+ Bf3 Qff2 Rhc1 h1Q Qe5 h2 Bf6 Qh4 Qg3 Qhf1 Bg5 h1N Be7 Qhh2 Kg5 Qf2g1 Bc6 f6+ Kg6 Qf4 Qg5 Qe2 Kh7 Ng3 Kh8 Nh5 Qdg6 Qc4 b8Q+ Ka6 Qg3 Qf7 Q6g5 Bc7 Rc8 Rd5 d8Q Bbe5 Qd7 Bed6 Bd8 Qgf1 Rc4 Rd3 Rd4 Qe1 Ndf1 Rd1 Nd2 Qef1 Qdf5 Qd3 Qe4 Qb1 Qed5 Nc2 Qe4 a1B Qh7 Bb2 Qe4 Nh6 g8B Na1 Bh7 Ng8 Qef3 Be5 Bd7 Bcd6 R8c2 Bc7 Bc6 Bed6 Qc8+ Ka7 Qe2 Ne7 Qd3 Ng8 Qb8+
Rr2r1Nk/1N1n2R1/1p1NQpbr/4B2q/1P4N1/2qn4/1n2K3/1Bqr1QQB b - - 0 1 illegal: No extended proof kernel
qn1rQQ1b/BRRn1p2/3K1Pkq/8/B1pN3n/1Q6/RrBn4/n2N2Qn b - - 0 1 illegal: No possible last move
Q1Q1Q1r1/b2N1rNQ/B3qrRB/p3rrbR/P5R1/3b1k2/5pN1/2n3bK b - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Nb4 h5 Nc6 Na3 Ne5 Nb1 Ng6 hxg6 Bd7 Qg4 Bf5 Qd1 Bc8 Kf2 Kd7 Kg2 Ke6 a4 Kf5 c4 b5 d4 e5 c6 a5 d5 h5 g7 e3 c7 Ke4 g6 f5 c5 b4 d6 f3+ Kh2 b3 c6 f4 d7 e2 Ra3 e1B Nh3 b2 Ra1 h4 Bb5 f2 Kg2 f1R Ba6 f3+ Kh2 Qe7 d8R Bd2 Bc4 Ra6 Bb5 Qe6 Ra2 Nf6 g8Q Nd5 g7 Nf4 Na3 b1R Qb3 Bc5 Qf8 Ba7 g8N Ne2 Nf4 h3 Nh6 Rg8 Ng2 Bg5 Rd6 Rb6 Qc3 Ba6 c8Q Re1 Bd2 Nc1 c7 Rb7 Bc4 R1b6 Qfe8 Bb5 Bf1 Bd3 Qa8 Rc6 c8Q Rf7 Qc2 Bg1+ Kg3 h2 Nf5 Ba7 Rg1 h1R Ng7 Rh5 Be2 Rf1 Nc4 Rf5 Rd5 Rc7 Nb6 Rcf7 Nd7 R5f6 Ne3 Re1 Kf2 Kf4 Rd4+ e4 Ng2+ Kg4 Bf1 Re3 Rh1 Re1 Bf4 e3+ Kg1 e2 Be3+ Kg3 Rd6 Kg4 Rh2 Kg3 Kh1 Kg4 Bd2 Bg1 Ra3 f2 Rc6 Kf3 Rac3 Be3 R3c4 Ba7 Bh6 Rhf5 Qb1 Rd1 Qbb7 e1B Rh5 Bd2 Rg4 Bg5 Qbc7 Re1 Q7b7 Be4 Ba6 Bd3 Qb1 Ree5 Qc2 Rf4 Qb1 Be2 Qg6 R4f5 Qh7 Bd3 Nb6 Qd6 Nd7 Rg6 Rcc4+ Qd5 Rc7 Rb6 Rc6 Qb3 Qab7 Qd5 Rg6 Rbf6 Qbb8 Qe6 Qa8+
RBn1NnB1/3RN3/bkQ1ppB1/5n2/3rQP1n/B1q2n2/q2Q2n1/N1bK4 b - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 b5 axb5 g5 Ke2 gxh4 Ke1 Ra6 Qd3 Rd6 Qd2 cxd4 Qd1 d3 Bf4 d4 Bc1 Rd5 exd5 Bb7 Rh2 Ba6 Rh1 Bc8 b4 Kd7 f4 Kc7 c4 h5 g4 d2+ Ke2 h3 d6+ Kb6 g5 a4 g6 d3+ Kf3 f6 d7 h4 g7 e6 Na3 h2 Nh3 Ne7 g8B Ba6 Qc2 d1N Ng5 d2 Ke2 h3 Nf7 Qc8 Qe4 Nf2 Nc2 d1N Nd6 a3 Ne8 a2 Ba3 Ne3 d8Q+ Qc7 Qd1 Nd3 Qd2 Ng2 Kd1 Nde1 Bd3 Nf3 Re1 h1N c5+ Ka7 c6 h2 Rf1 Ng3 Rg1 Qa5 c7 h1N c8Q Nd7 Qcc6 Nc8 Rf1 Nf5 b6+ Kb8 b5 Nhg3 b7 Ka7 b8N Qc3 Rh1 N5h4 Rh2 Ngf5 Rh3 Ng6 Rh7 N6h4 Rg7 Be7 Rf7 Nf8 Rg7 Bb7 Rf7 Bc5 Rd7 Be3 b6+ Ka8 Rc1 a1Q Rb1 Qa2 Na1 Rh5 Rb2 Ng3 Rb1 Rd5 Rb4 Rd4 Ra4+ Qa5 Qcc2 Ngf5 Nc6 Ba6 Ne7+ Kb8 b7 Ka7 b8B+ Kb6 Qc4 Qc3 Ra5 Bb7 Ra8 Ba6 Qcc6+ Ka5 Qc2 Bc1 Qee2 Nh6 Qf2 Ra4 Qfd2 Rd4 Bg6 N6f5 Q6a4+ Kb6 Qe4 Bb7 Qc4 Ba6 Qcc6+
K3N3/3BRRq1/b4Q1B/1rQ3p1/1b1rp3/nb3rRB/Q1N1P1rk/2Rr3b b - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h3 Nc6 h4 Ne5 h5 Ng6 hxg6 f5 Ra6 fxg4 Ra5 Qb6 Ra1 Qd8 Kd2 e5 Kd3 Ke7 Kc4 Kd6 f4 a5 b4 h5 g7 h4 b6 a4 Kb5 h3 c4 e4 b7 d3 b8Q+ Ke6 f5+ Kf6 c5 d5 Kc6 a3 b5 h2 b6 d4 b7 g3 Nc3 g2 Qa7 Ke5 b8R a2 f6 d2 f7 Kf4 Nd5+ Kg3 Ba3 d3 Rb3 Nh6 g8Q Rh7 Nf6 Ba6 Ne8 Qe7 Rc1 a1R Nf3 g1R Ne1 Rb8 Nc2 Rb5 Bh3 Rg2 Qf1 d1B Qf6 Nf5 Rg1 h1B Rb4 Bh6 f8R d2 Qa2 Ne3 Rf7 Bf8 Rd4 Rg7 Rd7 Kh2 Qc7+ Qe5 Rde7 Nc4 Bb2 Na3 Bc3 Rf2 Rg3 Rg2 Qcd6 Rh7 Kc7 Rab1 c6 R1b3 Bd7 Qd4 Qc5 Rh3 Bb2 R3b4 Ba1 Qc3 Bb2 Rd4 Ba1 Ra5 Kb8 Rb5+ Ka8 Qb2 c7 Qc3 Ne1 Bb3 c8B d1R Nc2 Qb2 Rg4 Rf3 Rg3 Qc3 Bh3 R4d2 Bcd7 Qd4 Qff5 Qg7 Bf6 Rd4 Be5 Qh6 Bg7 Qh7 Bh6 Qg7 Re6 Be7 Qf6 Bd6 Qc7 Bc5 Ree7 Bb4 Qc5
r3nKR1/BbR4p/1Q4Rn/qQ5B/rr1n2rP/1r4pN/RB6/2n1Q1Nk b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 Kd3 Ke7 Kc4 Kf6 Kd5 Kf5 Kd6 Kg4 c4 a5 h4 Kg3 e4 g5 b4 d3 b6 g4 e5 a4 f5 d2 b7 a3 c5 a2 f6 Qa5 f7 Na6 f8B Nh6 Ke7 d5 b8R d4 c6 d3 e6 Rg8 b5 Nc7 b6 Ne8 c7 Bb7 Qe1 d1R c8R d2 Be2 Kg2 Nh3 f1R Nc3 f2 Bb2 Rb1 Rc7 d1R Rg1+ Kh2 Bf3 Rd3 Ne2 Rb3 Rg2+ Kh1 Neg1 Rb4 Bfg7 Rb3 Bgd4 g3 Bh5 Rg5 Kf8 Rg4 e7 Rb4 Rd8 Ra4 Rd6 Rb4 Rg6 Ra4 Bc1 Rbb4 Bcb2 Rb3 Rd1 a1N Be3 Rbb4 Rd8 Nb3 Bc5 Nd4 Rb8 Nd6 e8Q Rb3 Qb5 Ne8 Qc3 Rfa1 Qe1 f1N Rbc8 Rb1 Rc2 Bc6 b7 Nd2 b8Q Bb7 Ba7 Rbb4 Rd8 N2b3 Rf2 Nc1 Rfc2 Bc8 Q8b6 Rb3 R2c3 Rbb4 Ra3 Bb7 Ra2 Rb3 Rdd7 Rbb4 Rdg7 Rb3 Rg8 Rbb4 Bc3 R1b3 Bb2
1R2r1nQ/p1N3B1/P1nnR1qR/1N1bkq1Q/1N1n4/1p2b1b1/2BB2b1/1K2N3 b - - 0 1 legal: proof: g4 d5 h4 f5 b4 fxg4 e4 c5 bxc5 dxe4 Na3 b5 Qe2 g5 Qd3 g3 Qe2 g4 Nb1 Na6 Qf3 Rb8 Qd1 Rb6 Bh3 Rg6 Bf1 Rg5 hxg5 Bd7 Bd3 Be6 Bf1 Bc8 d4 Kd7 Kd2 Ke6 c4 h5 Kc2 h4 f4 e3 a4 b4 c6 e2 c5 e1B f5+ Kd5 f6 e5 c7 g2 c6 e4 g6 h3 g7 h2 f7 e3 a5 e2 Nc3+ Kd6 d5 b3+ Kb1 g3 Na2 Qf6 Nb4 Rh4 Bd2 Bb7 c8N+ Ke5 d6 Be7 f8B Nc5 a6 Ne4 c7 Qf5 d7 Bd5 d8N Bg5 Nd6 Be3 c8Q Rh8 Ne6 B1f2 Ra5 e1N Nc7 Nc2 Ndb5 Nd4 Qh5 Nd6+ Bd3 Nc6 Bc2 Be1 Nh3 g1Q Nf2 g2 Nfd3+ Ke4 Ra4 Bg3+ Ne1+ Ke5 Ra5 Qf1 Ra4 Qd3 Rf1 g1N Rf3 Nf6 g8R h1B Bg7 Ne2 Qa8 Ned4 Rb8 Re8 Rf1 Ke4 Rf3 Ng8 Ra5 Qh3 Rf6 Bg2 Rb7 Nh6 Qf7 Re7 Na3 Bc4 Qh8 Ng8 Rb8 Re8 Rh5 Bd5 Rhh6 Ke5 Nab5 Qg4 Qg6 Qdf5 Qh5 Qg6 Re6+
2n3nQ/1p1k3b/4R1Nq/q5Np/rQRB3N/Q3R1qP/K1B3R1/n1b1nq2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 Ra6 Bf1 Rf6 Qc2 exf4 Qd1 f3 Qc2 f4 Qd1 Rf5 gxf5 Qe7 Nh3 Qg5 Ng1 Qd8 a4 g5 e4 h5 d4 c5 Kd2 g4 Kc2 c4 Kb2 b3 d6 f2 e5 f3 e6 g3 d7+ Ke7 d5 g2 h3 Na6 f6+ Kd6 e7 Rh7 e8R Rf7 a5 Nh6 Qe1 Nc7 a6 Na8 a7 Nb6 a8Q Ng8 Nd2 Bh6 Bd3 f1Q Rh2 f2 Ngf3 g1Q Nh4 Qg3 Rg2 c3+ Kb1 b2 Ra3 c2+ Ka2 b1N Re6+ Kc7 Bb2 c1Q Ne4 Nd2 Ng5 Nf3 Qb4 Ne1 Bd4 Re7 f7 Qce3 Rg6 Re4 d6+ Kc6 f8N Qc7 d8Q Bf5 Ba1 Nc8 Bd4 Qa5 Re6 Bh7 Nfg6 Qef4 Qf6 Kd7 Qh8 Qf8 Bc2 Qg7 Nf7 Bc1 Ng5 Qh6 Qa7 Qfb5 Qac5 f1N Qcc3 Qbd3 Ra4 Nd2 Qca3 Rf4 Re3 Qf1 Re6 Kd8 d7 Nb3 Re3 Kc7 d8R Na1 Rde8 Kd7 R8e6 Rf5 Qbb2 Rb5 Rc4 Rb4 Qb3 Ra4 Qb4
b1KN4/1p3BbB/3N1B1N/RPR1qQn1/4Qn1B/1n4k1/5bpn/b3qRr1 b - - 0 1 illegal: Other
2b3nb/r1R3k1/3B1p2/1Qrn1P1Q/2Nr1NN1/2n1QBb1/pN3nK1/r3R2B b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra3 cxd4 Ra6 d3 Ra5 d4 Ra1 Qd5 exd5 Bg4 Bh6 Be6 Bc1 Bc8 g4 e5 b4 a5 c4 h5 f4 a4 Kf2 a3 f5 f6 g5 Kf7 c5 e4 b6 h3 c6 h2 g6+ Kg7 b7 d2 d6 a2 c7 h4 b5 h3 d7 d3 d8Q Ra6 b6 Rh4 Qh5 d1R Ne2 d2 Qd3 Bd6 Na3 Bc5+ Qe3 Bd7 c8B Rg4 Nc4 Ra4 Nf4 Na6 b8N Bf8 b7 Nc7 Bg2 Ra7 Na6 Nd5 Ba3 Rc1 Re1 h1R b8Q h2 Bb7 Bc8 Bd6 Rc3 Rac1 d1N+ Ke2 Rg1 Bf3 h1N Nc5 Nhf2 Ncd3 Rf1 Ndb2 Rh4 Nb6 Rc5 N6c4 Rg1 Bc6 Rgh1 Qb5 Rf1 Qa3 e3 Bh1 Rg1 Kf3 e2 Qe3 Rf1 Kg2 N1c3 Nh3 Rd4 Nf4 Nde7 Bf3 Ned5 Red1 e1B Rc2 Nh3 Rcc1 Bg3 Re1 Nf2 Rc2 Nh6 Rcc1 Kh8 Rc2 Bg7 Rcc1 Kg8 Rc2 Bh8 g7 Kh7 g8N Kg7 Ree2 Nf7 Nh6 Ra1 Ng4 Nh6 Re1 Na4 Rc3 Ng8 Rb3 Nac3 Ra3 Rac7 Ra7 Rd7 Rc7 Rf7 Rc6 Ra7 Rc7+
2QNRb2/3r2RB/n1BB1K1P/3q1nn1/2r3b1/Rp2kbQN/5pp1/B3r2Q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 e4 g5 h4 f5 a4 f3 d4+ Kb6 h6 c5 h5 f2 a5+ Kb7 a6+ Kb6 d6 g4 d7 g3 h7 g2 a7 b3 d5 c4 d6 Kc5 Na3 f4 Nh3 f3 Bf4 c3 Bd3 f1B Nc2 b4 Nd4 b2 Nc6 b1R Ra3 Ne7 Kf6 f2 e5 c2 e6 Nf5+ e7 c1N h6 Qa5 d8Q b3 e8R Na6 d7 Be2 Re1 Bf3 R1e7 Ne2 Qh1 Ned4 Rg7 Ne6 Qc7 Ng5 d8Q Re1 Bd6+ Kd5 Qdd7 Qc5 Nd8 Kd4 Qdc6 Qd5 Q6d7 Rb8 a8B Rb4 Bc6 Rc4 Be4 Rg8 h8B Ke3 Qe6 Bd7 Qe5 Bc8 Qg3 Be6 Qc8 Bd7 Rg6 Rg7 Bb1+ Re7 Rg7 Be6 Be4 Rd7 Bc2 Ne7 Bd3 Bg4 Bh7 Ke2 Rg8 Qd3 Ke5 Nf5 Bf6 Ke3 Rg7 Nf7+ Ke6 Qd1 Ba1 Ng5+ Ke5 Qd5+ Kf6+
2Q3q1/K1N1bk2/2bBn2p/R1r3n1/br3Bpn/2r1R1PR/4Q1p1/2Q2BBN b - - 0 1 illegal: No proof kernel
N2B3n/1R3p2/brQrkPRK/7n/qpQb2Nb/1B1p4/2N4r/1B2n1BQ b - - 0 1 illegal: No possible last move, all moves rejected
R7/r2bpqbp/2bB2kP/4B1NN/1r1n4/2r2QnN/1B4pK/QQQ3Rn b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 gxf5 c6 b4 Qd3 b6 Qd6 b7 Qf4 b5 Qd6 b6 Qd8 Bb5 cxb5 Kf1 Kf7 Kg2 g5 f4 a5 c4 e3 d4 b4 h4 a4 f6 g4 d5 a3 h5 g3 c5 e2 d6 e1R h6 b3 f5 b2 c6 a2 c7 Qe8 d7 Rf1 d8B Rf4 Nc3 b1B Nce2 Qb5 Nh3 Qa4 Bb2 Ra7 Rg1 Nd7 b8Q Nc5 b7 Rb4 Nef4 Bd7 c8Q Qb3 Nh5 Bg7 Bc7 Ne4 Bce5 Nf2 Qcc1 Nh1 Qa8 Bd3 b8B B3b5 Bbd6 Qc4 Qaf3 Bbc6 Qb1 Qb3 Qdc1 Qd5 Nf2 Qb3 Kh3 g2 Kh2 Qd5 Nh3 Rab7 Bec3 Bb5 Qbe4 Qe6 Bce5 Qc4 Rb1 a1N Qa3 Nc2 Ra1 Nd4 Qeb1 Rc7 Qa8 Qe6 Ra7 Rc3 Ra3 Bbc6 Qa7 Ke8 f7+ Kd8 f8N Ke8 f6 Kf7 Qa5 Qf5 Ne6 Kg6 f7 Nf6 f8Q Ne4 Neg5 Neg3 Ne4 Qe6 Qf3 Ra8 Qa7 Qf7 Neg5+ Rc2 Rd3 Rc5 Qaa1 Ra2 Ra3+ Rc2 Ra8 Ra7 Ne4 Rc3 Neg5+
2Q2nBk/q2p3R/Bn5r/1KQb2r1/Pn1Rp1r1/QpbB3N/6N1/N3Bb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 Kg7 Kc4 e5 g4 h5 f4 b3 a4 h4 f6+ Kh7 f5 b2 f7 h3 f6 b6 Na3 b1B Qd3+ e4 Kb5 h2 c4 Ra6 c5 Bg7 f8Q Bb7 f7 Ne7 c6 Qc7 Nc2 Rg8 g6+ Kh8 Qa3 d3 g5 d2 Nh3 d1N Bd2 Bc3 Bd3 Ne3 Be1 N3d5 Qc5 Ba2 Rd1 Ra8 Qc8 Na6 f8N Nab4 Ne6 Bb1 Na1 Ra5+ Kc4 Ba8 Nef4 Qa7 c7 Bc6 Ng2 b5+ Kb3 Nb6 g7+ Kh7 Qf8 Ng6 c8B Bd5+ Ka3 Bba2 Ba6 Bac4 Qfd6 Nf8 Qg3 Rh8 g8B+ Kg7 g6 Rh4 Qge3 Rg4 Qf3 Kh6 g7 Kg6 Bc2 Bf1 Rd4 Kh6 Bd3 Kg6 Rg1 h1R Qe3 Rh2 Rh1 Kf6 Bh7 Kf7 g8Q+ Kf6 Qh8+ Kf7 Bg8+ Kg6 Qh5+ Kg7 Qe8 Kh8 Qg3 Rf4 Qec8 Rg4 Ng1 Rhh4 Nh3 Rh6 Qh2 Bc4 Ne3 Rd6 Q5c7 Nc6 Ng5+ Rh6 Qa2 Rhh4 Ng2 Bf7 Qd6 Rh5 Qdd5 b4+ Kb3 Rh7 Qa3 Be6 Qc4 Rf5 Rh6 Bd5 Nh3 Rfg5 Rg6 Rh6 Rg7 Be6 Qd5 Na8 Kc4 b3 Rf7 Nb6+ Kb5 Nb4 Qdc5 Bd5 Rh7+
B2RBQ2/qQ1pnQpn/2k1b3/1r1Rb2K/p5R1/8/1r2rP1B/Bnb3NN b - - 0 1 illegal: No possible last move, all moves rejected
K5N1/2P2n2/1Br1R3/1Qp1RBrp/n2B2Rr/Nqp2b2/1N3Q1b/k1N1n2b b - - 0 1 illegal: No proof kernel
2B1b3/2ppb3/Q2RrN1n/2Qq3n/R2PN2N/4p2B/nB5k/QKNbrr2 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 Na6 h4 gxh4 a3 Nb4 Ke2 Nc2 Nh3 Nxa3 Ng1 Nc2 Kd3 Kf7 g4 Kf6 b4 Kg5 f4+ Kf6 b6 e5 b7 h5 b8Q a5 g5+ Kf7 f6 Ke6 b5 Kf5 g6 a4 f7 h3 b6 h2 b7 a3 g7 h4 Qa7 h3 b8Q a2 Ne2 Kg4 f5 Ba6+ Qb5 Qg5 f6 Be7 f8N Nh6 g8B Re8 f7 e4+ Kc3 e3 Kb2 Qh5 d4 Qd5 Nh7 Nb4 Qbc5 Bd3 f8N Bg6 Qa6 Kh4 Rg1 h1N Be6 h2 Nbc3 Ng3 Ne4 h1B Beh3 Nh5 Nhf6 Bf3 Rg5 Bg4 Re5 Rh7 Re6 Rf7 Rd6 Bf3 Bd2 Bg4 Nc1 Be2 Bc3 Bf3 Ng5 Kg3 Nge4+ Kh2 Qe1 Bd1 Bc4 Bf5 Ng6 Rff8 Nh4 Bg6 Bb5 Bf7 Bc6 Bg6 Bb7 Bf7 Rb1 a1R Bc8 Na2 Qef1 Bd8 Qe1 Re6 Qef1 Be7 Qe1 Bf3 Kc2 Bg6 Rb4 Be8 Ra4 Rf7 Bb2 Bg4 Nh7 Rf1 Nhf6 Rb1 Nd3 Rd1 Nc1 Be2 Qec3 Rde1 Kb1 Bd1 Q3a3 Nb4 Qa1 Na2 Qcb5 Rf4 Qbc6 Rff1 Qc5
B3NQn1/1Nnq3q/8/r4n1B/3QNr2/3RQp2/1Pbq1pRp/Q3bKBk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 e4 Kf6 d4 Kg5 d6 h5 e5 a5 d5 c5 d7 f5 d6 a4 e6 c4 b6 a3 e7 c3 e8N c2 b7 a2 Qd4 h3 Bg2 Kh4 g5 Kg3 g6 f3 g7 f4 Nc3 h2 Qe3 h4 Nh3 Na6 b8Q Nc7 Na4 Ra5 Ng5 h3 Qa8 Rh4 Rg1 h1N Nc5 Kh2 Nge4 Ng3 Nb7 Nf5 Kf1 Qe7 d8Q Qd7 Rb1 a1Q Bd2 Qa3 Rd1 c1Q Be1 Qa2 Rd3 Qd2 Bf2 Qaf7 Qf6 Qh5 Qfd4 Qh7 Bh1 Be7 Rg3 Rg4 Qaa7 Bh4 Qa6 Qc6 d7 Qe6 d8Q Qd7 Nbc5 Bb7 Qa7 Bd5 Nb7 Bb3 Qe7 Ba4 Qf8 Bc2 Rg1 Nge7 g8B Bg3 Bf7 Ng8 Qe1 Bh4 Qa1 Bg3 Be3 Be1 Bh5 Rh4 Qe5 Rg4 Bc5 Rh4 Qd4 f2 Bd6 Rg4 Qe3 Rh4 Qad4 Rg4 Bf3 Rh4 Rg2+ Kh1 Ng5 Rg4 Bc6 f3 Bh2 Rh4 Ne4 Rf4 Bg1 h2 Nbd6 Qe6 Ba8 Qed7 Nb7
3BB3/3QnR2/K2R1Q2/bR2Nnq1/R1prq1r1/kP1b1qNp/3p1N2/B1r5 b - - 0 1 illegal: No proof kernel
2R1BBn1/rR3NK1/4k3/1q1qQp1Q/n1pb1PNq/N2b2r1/4Rn1p/R5B1 b - - 0 1 illegal: No possible last move, all moves rejected
3k3B/Q1r3n1/2qQ1BBK/4P1Bp/N2p1n1N/1b2Rp1r/1R1n1NQb/6rq b - - 0 1 illegal: No possible last move
q1RQ2nR/2K1B2B/1rR2q2/3pp3/N2n3P/BN2b3/1pk2r1Q/1n2QQrb b - - 0 1 illegal: No possible last move
rqN1KBN1/2NQ4/1b5Q/1Rp2b1r/2B2qRn/3Pnr1p/N1Rp3k/4Qb2 b - - 0 1 illegal: No proof kernel
rN1bR2q/k1q2b1n/Q2BN2R/1P1p4/1B1nnp2/RQr1N3/R2p2bK/3B4 b - - 0 1 illegal: No possible last move, all moves rejected
n3k1KQ/5rB1/rBQ1q1bN/p1R2np1/1np5/P1NQBR1q/2B1bRr1/8 b - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 g6 c4 bxc4 g5 Bg7 h4 Bh6 h5 Bg7 h6 f6 hxg7 fxg5 Rh6 g4 Rh5 Nh6 Rh1 Ng8 Kd2 h5 Kc3 d5 Kd4 a5 b4 c3 f4 c6 e4 g5 a3 g3 f5 c2 b5 h4 b6 h3 f6 h2 e6 c5+ Ke5 c4 b7 g2 e7 d4 f7+ Kd7 f8B d3 e8Q+ Kc7 Ne2 g1R Nbc3 d2 Nd4 Rg3 Nf5 Ra6 Nh6 Rg2 Bd3 Bf5 Ra2 Rf2 Rf1 Rg2 Rf3 Ne7 g8Q h1Q Bg7 Rh7 Qh8 Bg6 Qa4 Ra8 Ke6 Nf5 e5 Na6 b8B+ Kc8 Qf1 d1B Be3 c1N Raf2 Na2 Bc2 N2b4 Bba7 Be2 Bab6 Qh3 Qd1 Qf8 Qd3 Qg8+ Kf6 Ra7 e6 Nc7 e7 Ra6 Qb5 Na8 e8R+ Kb7 Re5 Kc8 Bf8 Rc7 Rc5 Qd5 Qa4 Kd8 Qc6 Qd7 Nb5 Ke8 Nc3 Ne7 Kg7 Nf5+ Kg8 Rb7 Qcd6 Qc6 Q6d5 Rf7 Bg7 Qe6 Qc6+
1Rr1r3/1n5Q/Nkn1nB2/p3bp2/N5PQ/2Qb1K2/B1qBp1R1/Nq1q1N2 b - - 0 1 illegal: No proof kernel
5Nb1/3RK3/2rQnBQp/2BQ4/n3b2P/BkrN4/pp1b2nR/q3BqR1 b - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 e5 dxe5 c6 b4 Nh6 b6 Nf7 b7 Qh4 b5 Qg5 b6 Qd8 Bg2 Nh6 Bd5 Ng8 Bc4 Ke7 Ba6 Ke8 Bb5 cxb5 Kd2 Kf7 Ke3 Ke6 Ke4 g5 c4 a5 f4 h6 h4 g3 c5 g2 c6 b4 c7 b3 Nc3 g4 Na4 g3 Nh3 g1Q Ba3 b2 Rh2 g2 Nf2 Bb4 Nd3 Nc6 b8B Qf8 b7 Nge7 Nb6 a4 e3 d6 Nd7 Ra6 Qd2 Qh1 Rg1 Nd8 Ba7 Rb6 b8B Rc6 Bd4 Bb7 c8R Nd5 Rc7 Nb6 Qd1 Bd2 f5+ Ke7 f6+ Ke6 f7 d5+ Kf4 Ba8 Bdc5 d4 Ba7 Kd5 Kf5 Kc4 e6 Kc3 e7 Ne6 Kf6 Rh7 Qh5 Kb3 e8Q Bb7 Bab4 a3 e4 a2 e5 Na4 Qe7 Rg7 Ba5 Rg3 Qd6 Ba8 Ba3 Rh3 B7c5 Re3 Rd1 g1N Qg6 Nf3 Rg1 Ne1 Qg5 Qe8 f8B Ng2 Bg7 Qb8 Ke7 Qb5 Bf6 Rh3 Ne1 Qf1 Nf8 Rc3 Rd7 d3 Qh5 Bg5 Ba5b4 d2 Nd3 d1B Qg6 Bd2 Qe4 Nef4 e6 Bf3 Qee5 Bd5 Ba5 Bc4 Qed5 Qa1 Kf7 Bb7 e7 Ne6 e8Q Qf1 Ke7 Qa1 Rb1 Qd1 Qg6 Qf1 Qdh5 Bd5 Ba5b4 Be4 Re1 Ba6 Qhd5+ Bc4 Rd1 Qf4 Rg1 Qff1 Ba5 Be1 Bfd4 Nef4 Bcb6 Rc1 Qdh5 Bg8 Bf6 Ne6 Bbc5 Rc2 Bd2 Rc3 Qhg5 Bf2 Be1 Be3 Q5h5 Bd2 Qhd5+
2b5/5n2/BQN2P1r/1pnk2qq/1BnBR1qr/N3ppR1/1b1N4/RRQ3K1 b - - 0 1 illegal: No proof kernel
1B4Q1/1k1b4/2n1rpNr/b2b3N/Q1BQ1PqR/KR2Qn1p/p2q4/1N4rR b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 d4 Kd7 Kd2 Kc7 Kc3 e5 Kb3 h5 g4 a5 c4 a4+ Ka3 e3 d5 e2 g5 e1Q d6+ Kb7 d7 h3 b6 f6 g6 e4 g7 h2 Nh3 e3 Nf4 h4 Nh5 e2 Bf4 Ne7 g8Q h3 c6+ Ka6 c5 Rh6 c7 Nec6 b7 Ne5 f3 Nbc6 b8R Qf2 Rb3 Qh4 Qc1 Rb8 Qe3 Rb6 Qc4+ Kb7 Qb4 e1R Bc4 Qe8 d8Q Qg4 Qdd4 Bd7 c8N Rg1 Ne7 Qd8 Ng6 Bd6 Ra2 Bc7 Rg2 Nf7 Be5 Ng5 f4 Nf3 Bd6 Qa8 Be5 Qa5 Qb5 Bd8 Bb8 Qd2 Qb4 Rb5 Rg3 Ba5 Rg2 Rb6 Qb5 Qh4 Rg4 Qg3 Rh4 Qg4 Qb4 Qe1 Ka2 a3 Qa4 Qd1 Ka1 a2 Kb2 Qd2+ Ka3 Nb4 Nh8 Re6 c6+ Ka8 c7 Nc6 Rd3 Kb7 c8Q+ Ka8 Qf8 Kb7 Ng6 Rc1 Re1 h1B Qg8 Bg2 Rh1 Rg1 Qc5 Ne1 Qce5 Bd5 Q5d4 Nf3 Rb3+
1RN5/7R/2KBP3/rQNnNB2/rQN2k2/pp3bb1/p3nRbQ/q3rq2 b - - 0 1 illegal: No proof kernel
4QQnN/2r2qb1/2P5/1p2N1Qb/1rRRr2n/2K2Bk1/QB1p1qNp/6Rq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 c4 e5 a4 h5 f4 d5 g4 b5 f6 Kg6 f7 d3 a5 b3 c5 e4 f5+ Kg7 g6 Kh6 f6 Kg5 g7 Kf4 c6 b2 a6 h4 a7 h3 g5 e3+ Kc3 d2 g6 e2 Qb3 e1R Qa2 h2 Na3 b1Q Nh3+ Kg4 Nf4 d1Q Bb2 Qe8 Bg2 Qf5 Bf3+ Kg3 Rc1 Re4 Nc4 Rh4 Ng2 Nd7 Rg1 Ne5 Rc2 Rb8 a8R Rb7 Ra4 Rc7 Rd2 Qf4 Rd4 Bg4 Rb4 Bh5 Ra4 Be7 f8Q Qf7 Qe8 Bf8 Rb4 Nh6 g8N Bg7 Ne7 Ng8 Ra4 Nd3 Ne5 Ne1 Rac4 Qb1 Bg4 Qf2 Be2 Nf3 Bd1 Bf8 g7 Rhg4 N7g6 Nh4 Bf3 Rgf4 Rd2 Qd1 Nh8 d4+ Kd3 Qde1 Kc2 d3+ Kc3 Ne7 g8Q+ Bg7 Qgf8 Ng8 Qc5 Qef1 Qe3 Rg4 Qg5 Qd1 Rc2 d2 Rd4 Qg6 f7 Qa1 f8Q Qf7 Rd6 Rb4 Rd4 Qae1 Qf6 Re4 Qg5+ Bg4 Rh1 Rc8 Kd3 Rc7 Rcc4 Qa1 Kc3 Qaf1 Ne3 Q1g2 Rc1 Qgf1 Ng2 Qh1 Qf6 Bh5 Rg1 Qd7 Qfd8 Qf7 Qg5+
5QrQ/K1N1q1R1/2p2B2/3b1R1q/1RN1Q3/kn3Brp/2PQn1pn/q2B3b b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 e5 axb5 exd4 Ra2 Be7 Ra3 fxg4 Ra1 g3 Nh3 g4 Ng1 Bg5 hxg5 Ke7 Ra5 Kf7 Ra1 Ke8 Kd2 Ke7 Kd3 Kd6 Kc4 a5 b4 h5 e4 g2 f4 h4 f5 g3 b6 d3 Kb5 a4 f6 d2 f7 h3 f8Q+ Ne7 e5+ Kd5 g6 d6 g7 a3 g8B+ Be6 b7 a2 Be2 Nbc6 b8R Nf5 Na3 Qe7 Bb2 Ne3 Nc4 Ng4 Nf3 g1N Nd4 Nh2 Qe1 d1Q Qd2 Bf7 e6 Ra3 Bh7 Rd3 Ka6 Rg8 b5 Kc5 b6 d5 b7 Na5 Ka7 c6 Nb5 d4 Nc7 Nb3 Be4 Re3 B2f3 d3 Bf6 Ne2 Bh5 Rf3 Rf1 Re3 Rb1 Rf3 Rd8 Re3 Bef3 a1Q+ Na6+ Kb5 Rd7 Ka4 b8Q Ned4 Qc1 d2 Nc7 Qe2 Rb2 d1B Qd2 Rd3 Rf2 Qe5 Qbe8 Ne2 Bhg4 Qh5 Rb1 Qea3 e7 Bd5 Qc8 Re3 e8Q Qe7 Qg6 Rc3 Qe4 Rd3 Bg2 Rc3 Rf5 Re3 B2f3 Rc3 Nd6+ Ka3 Nc4+ Ka2 Qfh6 Ned4 Qcf8 Qb4 Be2 Na5 Rf7 Qe7 Bf1 Bf3 Qh8 Bh1 Rb7 g2 Rg7 Rg3 Bfe2 Nab3 Bd1 Ne2 Rb4 Nf3 Nb6 Nh2 Bf3 Ka3 Nc4+
1Q4Br/bn1n4/BNp1B1k1/1q2B2p/1rnR1Rpq/2b1N3/P1K1b3/3Q2QN b - - 0 1 illegal: No proof kernel
1B4r1/1Bnb4/1pPQQ1bB/1Qp1q1k1/R2N4/1rq1RK2/r2pN1n1/1RbB4 b - - 0 1 illegal: No proof kernel
B1K2N2/k3b1Qp/5B1n/n1R2p2/b2BP1q1/r1p1b1R1/QQ2N2q/NNr1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Qa4 Kd7 Ra3 c5 Kf2 Kc7 Kf3 Kb6 Ke4 f5+ Ke5 a5 d4 c4 g4 h3 b4 h2 g5 f3 g6 f2 d6 Ra7 d5 Be7 d7 Bf8 Ke6 Bd6 g7 Rb7 Be3+ Bc5 d6 Rc7 Bg2 Nf6 g8Q f1Q Qg7 Ka7 b6+ Ka6 b7 Qf8 b5+ Kb6 Rd3 Nc6 b8Q+ Bb7 d8B Qf3 d7 Ng4 Bf6 Nh6 d8N Qg4 Bed4 Rc8 Qb3 a4 Kd7 a3 Ne6 a2 Qa8 Re8 Qb2 Rc8 Qaa3 Ra8 Bd5 Qb8 e4 Rc8 Ne2 Ba6 Rc1 h1R Nf8 Kb7 b6 Be7 Rg1 Qh2 Rc1 Re1 Rg3 Bb5 Qab3 Kb8 b7 Ra3 Rc2 Na5+ Bc6 Ba6 Bd5 Rc5 Rc1 Ka7 b8N Bb7 Na6 Bc6+ Kc8 Ba4+ Bc6 Rg1 Nb4 Re1 Bde5 Qhh4 Nc2 Qh2 Q2c3 a1B Qa2 Bb2 Qd2 Bc3 Na1 Bd4 Qdb2 Be3 Bc3 Rd5 Rc2 Rdd1 Ba8 Rc1 Bce5 Qgh4 Rc3 Qg4 Bd4+ Ka6 Rb3 c3 Rb6+ Ka7 Rb5+ Ka6 Rc5 Ka7 Qe6 Qg1 Qc4 Qh2 Qca2
B3R2r/1K1k1pQ1/BNR1r2B/qb3B1n/p2r1Q2/3NnP2/N5bp/5Rqn b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 Kb4 h5 Kc5 a5 b4 e5 c4 h3 g4 a4 d5 h2 f3 e4 g5 e3 b6 e2 b5 e1Q d6 h4 d7+ Ke7 b7 h3 b6 Qe4 g6 Nf6 g7 Ke6 g8B Qg4 Bh7 Qh5+ Bf5+ Ke7 Ne2 Qg4 Nf4 Qg6 Nc3 Nd5 Na2 Qe8 d8R Qf8 Re8+ Kf6+ Kb5 Ra7 c5 Ne3 c6 Nd7 b8Q Qg1 c7 Ra6 Kc6 Qb4 Qc2 d1N Qg2 d2 Nd3 Nf2 Be2 d1R Be4 Ra7 b7 Qa5 Bd5 Kf5 Qg7 Nf6 Bd2 Nh5 Rc1 Be6 c8B Ra8 Qbg3 Rh6 b8N Bd7+ Kb7 Re6 Rc4 Bb5 Bc1 Rd2 Nd7 Rd1 Nb6 Rd2 Ne1 Rd4 Bd7 Rd8 Nd3 Rc8 Rc6 Ra8 Re7 Rh8 Qd6 Qd1 Rg1 h1B Rf1 h2 Re8 Bg2 Qdg3 Nh1 Bd2 Ng4 Bh6 Ne3 Rd6 Rg4 Ne5 Rd4 Rg1 Bc6+ Kc7 Qa1 Ba6 Bb5 Nd3 Qf1 B7c6 Rg6 Ba8 Bc4 Rc6 Bb5 Kb7 Qf2 Rf1 Qg1 Rd8 Rd6 Be4+ Ke6 Qf4 Ke7 Rf8 Rf6 Bf5 Re6 Nc4 Kd7 Rfc8 Qb4 Re8 Qa5 Nb6+
1r1n1N1Q/k4pQ1/3BP1Br/1N1pQ1b1/2RN1q2/3BNn1p/bq2r2b/R4K2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 c4 d5 b4 Kd7 g4 Kc7 e4 Kb7 b6 a5 c5 h5 b5 a4 e5 d3 e6 f3 g6 a3 g7 h4 g5 a2 g6 h3 Ba3 Ra4 c6+ Ka8 b7+ Ka7 b6+ Ka6 c7 Nh6 g8Q Bd6 g7 Rh4 Nd2 Bh2 Nc4 Qf6 Ne3 Nc6 b8Q Nf5 b7 R4h6 Ne2 Nd8 Nd4 Nh4 Qe2 Bd7 c8N Ba4 Nd6 Bb3 Qc8 Ka7 b8N d2+ Kf2 d1Q Nd7 Qc1 Nf8 Qf4 Qe1 Bc4 Bd3 Qb2+ Kf1 f2 Qc3 Nf3 N6b5+ Kb6 Rc1 a1B Bd6 Ba2 Qh7 Rg8 Qe1 Rh8 Qcc3 Kb7 g8B Ka8 Qg7 Kb7 Nc7 Ka7 Bgh7 Rg8 Rc2 Rh8 Bhg6 Rg8 Ke2 f1R Qg3 Rd1 Qe5 Rd2+ Kf1 Re2 Qg7 Qf6 Qe5 Qf4 Rg1 Qa3 Qh8 Bb2 Qeg7 Bc1 Qe1 Qb2 Rc4 Bd2 Qg3 Be1 Qg5 Bh4 Q5e5 Bg5 Rg2 Rd2 Re2 Rc2 Re1 Re2 Ra1 Nc6 Nd7 Rb8 Nf8 Nd8 Ncb5+
1q2n1RR/5p2/rB1p3n/1br1pr2/1K3b2/1BPB1N1k/2B1q1QN/3Q1QRb b - - 0 1 illegal: No possible last move, all moves rejected
r3Q1BK/q1Q2pB1/2pQpR1Q/3r1RnN/q3RPk1/1b5N/r1n5/b1N4n b - - 0 1 legal: proof: e4 d5 exd5 b5 h4 g5 c4 gxh4 a4 Bg4 axb5 Be2 Ra2 Bxc4 Ra1 Be2 g4 Kd7 d4 a5 Kd2 h5 Kc3 c6 f4 a4 b4 a3 d6 Ke6 b6 h3 d5+ Kf6 Kd4 h4 g5+ Kf5 d7 h2 b5 a2 g6 e6 d6 h3 g7 Ra6 b7 Rh6 b6 Be7 Nd2 Ra7 Nb3 Rh4 Bb2 Bg5 Nc1 Na6 b8Q Bc4 b7 Qe8 d8R Qd7 Qh5 Nc5 Qh6 Bd3 Qc7 Ra5 b8Q Bc4 Bd3+ Kg4 Ke5 Ra8 Bh7 Ne7 g8N Nf5 Rb1 Qe7 d7 a1Q Bc3 Ne4 Rb4 Ne3 Nf6+ Kg3 Bb2 Bb3 Nh5+ Kg4 Bg8 Nc2 Qd6 Qa4 Qbc7 Ne1 Rdb8 Nc2 d8Q Qd7 Rc4 Be7 Bd4 Ng5 Rb5 Bf8 Kf6 Be7+ Kg7 Bf6+ Kf8 Be5 Qe8 Bh8 Ba7 Ba1 Bd4 Qe7+ Kg7 Qd7 Ng3 Rh5 Rf5 Qe7 Kh8 Qd7 Ng1e2 Qe7 Rg1 h1N Bg7 h2 Re4 Qd7 Qb6 Qda7 Qbc7 Nf2 Rg2 h1R Ng1 R1h2 Nh3 Nh1 Rf6 Rd8 Rd2 Ra8 Rd5 Rd2 Rdf5 Rd5 Ng1 Rh2 Nh3 Nb4 Qa5 Ra2 Qac7 Nc2 Nh5
1RRrk2Q/1Bqnbp1p/3Q4/Np5r/q3Q1N1/1RQ1BPr1/4N3/3bKn1n b - - 0 1 legal: proof: h4 e5 b4 b5 d4 g5 dxe5 gxh4 a4 c6 axb5 Bd6 b6 Bf8 b5 cxb5 c4 a5 e4 d5 g4 a4 e6 h3 e7 d4 c5 a3 e5 a2 b7 d3 g5 h2 c6 Na6 b8R Nh6 g6 Bd7 g7 Bf5 g8N Nc7 Be3 Ra4 Nd2 Be6 Ne2 Nf5 Nb3 Re4 Bg2 Rh4 Rc1 a1Q Nh6 Ng3 Ng4 Nf1 Na5 Na8 c7 Nb6 c8Q Bb3 Qc3 Rh5 Bb7 Qa4 f3 Rg8 Rb1 Bc2 Rb3 Rg6 Rg1 h1N Qdd2 Bd1 Rg3 Kd7 Rg2 Qc7 e6+ Kd6 e8Q Nd7 Qd8 Be7 Qdh8 Rg8 Nf2 Rg3 Ng4 Bf6 e7 Bg5 e8Q Be7 Qcg7 Bh4 Bg5 Qd8 Ra3 Nf6 Qa2 Bb3 Qe4 Kd7 Nf4 Bc2 Rb3 d2+ Ke2 d1R Qa3 Rd5 Ke1 Bd1 Rc2 Rd3 Rcc8 Qc7 Qc5 Rd2 Ne2 Rd6 Qed4 Ke7 Qcc3 Rd8 Be3 Nd7 Qg6 Bg5 Qhf6+ Kf8 Qfd6+ Ke8 Qge4+ Be7 Qh8+
nq5b/rN2P2n/2r1B1rb/1Q2pQ1K/b3QNN1/6B1/Q1RRppB1/k1q5 b - - 0 1 illegal: No proof kernel
rRBb4/1N2pn2/2KQ1rQn/q1R2P1p/Q1r1p1B1/q4NB1/4NQ2/k4b1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 f4 c6 b4 h3 f5 h2 g5 a4 b6 a3 b7 a2 g6 Qc7 b5 Rh6 g7 Nd7 b8Q Re6 b6 Bb7 Nc3 Re5 Bh3 Nc5 Rb1 a1Q Bg4 Ra3 Qa7 Nd3 Nf3 Ra5 Qa4 Nh6 g8B Qa3 Be6 Bg7 Bc8 Ba6 b7 Bh8 Rd1 h1N b8Q Bc4 Qab6 Ra8 Q8a7 Qd8 Qba6 Qa5 Rb8 Bb5 Ne2 Re6+ Ne5 Rf6 Nf3 Ne5 d3 Nd7 Bf4+ Ne5 Rc1 Bg7 Bg3 Bc4 Ke3 Bb5 Kf4 Nef7 Qf2 Bc4 Ke3+ Kc5 d6 Kd5 d7 c5 d8N Bb5 Ned4 c4 Nb7 c3 Ne2 c2 Kf4 Bc4 d4 Bd3 Neg1 Bf1 Ne2 Q5b4 Qd6+ Kc4 d5 Kd3 Qdb6 Qa5 d6 Bh8 d7 Bg7 Rb1 c1R Rb5 Rc4 Rc5 Bh8 Ned4 Kc3 d8Q Bg7 Qdd6 Bh8 Qbc6 Bg7 Ne2+ Kb2 Qa6 Ka1 Qab6 Re6 Qbc6 Bc3 Qe8 Bb4 Qg8 Rf6 Qg6 Nd8 Ke5 Ndf7+ Kd5 Bd2 Qb6 Bf4 Qd8 Bc7 Qd6 Bd8 Kc6
1qQ1QRnr/rbBP4/RR1p3B/1p1pN3/2NQB3/4r1k1/n3R3/1q1qbK2 b - - 0 1 illegal: No proof kernel
2BQr3/bb1pQn1B/kp1P1rQ1/3q4/q5NK/1p3b2/nBRN3R/NB1r4 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 axb4 Qf3 c4 Qb3 cxb3 h4 g5 a4 e5 f4 b2 Kf2 e4 Kg3 b6 d4 b3 c4 g4 h6 e3 d5 e2 h7 e1R h5 Nc6 c5 Nf6 d6 Nd5 a5 Qg5 f6 Kd8 h6 Nc7 f5 Nb4 a6 Rg8 h8N Qf4+ Kh4 Qd4 f7 Qf4 h7 Qd4 f6 Qe5 c6 g3 a7 g2 Ra2 Nbd5 Bd3 Nb4 Nf3 g1Q Nd4 Rd1 Nc2 Be7 Na1 Rf8 Nd2 b1B Bb2 Bb7 Ng6 Kc8 h8Q Ne6 c7 Bd8 Qg7 Ng5 Rh2 Qd5 Ne5 Qgd4+ Ng4 Rb8 Bh7 Be4 a8B Bf3 Qg8 Re8 f8Q Nf7 Qg6 Q4c4 Ra7 Na2 Qe7 Qa4 Ra5 Ba6 Bc6 Bb7 Rc5 Ra8 Bb5 Ra5 Bd3 Rb5 Qe6 Rb4 Rc2 Rf4 Qee4 Ne5 Qe3 Ba8 Rc4 Kb7 Qee4 Ka6 c8B+ Bb7 Bb1 Bc7 f7 Bb8 Rc2 Ba7 Qe3 Rf6 f8Q Ree6 Qh8 Nf7 Qd8 Re8 Qee7
QQrB2b1/RnP3KR/q6N/N2kn3/b2pN1Rr/1pbq1pB1/6B1/4B2q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kf3 Ke6 Kf4 b5 a4 f5 c4 d5 h4 b3 e4 g6 h6 d3 h5 d2 a5 b2 h7 d4 c5 b4 c6 Bd6 h6 Nd7 a6 Nf8 a7 Nf6 Kg5 f4 c7 f3 Nh3 Ba6 Nf2 Bc4 Qb3 d1Q Bd2 Qc1 Na3 b1B Ng4 Rb8 a8Q Rb6 Bg2 Qc3 Be1 Rg8 h8B Qc2 h7 Qc8 Kh6 N6d7 Bf6 g5 h8B Qd3 Bd8 Bc2 Ra2 Bd5 Nc4 Qa6 Na5 Ng6 Rg1 Rf8 Kg7 Nc5 Nh6 g4 Rh1 g3 Rh4 Bc4 Rg4 Nb7 Qb2 Bc5 Ra3 Kd7 e6+ Kd6 e5+ Kd5 e7 Ba4 e6 Ne5 e8R Rd6 e7 b3 Qc3 Rdf6 Qb4 Rf4 Qb6 Re4 Qba7 Bb4 Q7b8 Bc3 Ra2 Rff4 Rf8 Rf6 e8N Re6 Nd6 Re8 Rf7 Rf8 Rg6 Rh4 Rg4 Re8 Ne4 Rf8 Bh3 g2 Ra3 g1Q Bg2 Qgf1 Bf6 Qb6 Nc6 Nd7 Kg6 Qh1 Bd2 Ke6 Rh7 Rc8 Be1 Bab5 Ra7 Qa6 Na5 Ba4 Bd8 Bd5 Be5 Bc4 Bh2 Ne5+ Kg7 Bd5 Nf6 Kd6 Bhg3 Bg8 Ne4+ Ke6 Bf6 Kd5 Bd8
B3Q2r/B1pN1bq1/N2N1n2/KQ3BNp/1nq2Qrk/2b5/1P3Rp1/R1n1r3 b - - 0 1 illegal: No proof kernel
3B1N2/1RpQ1QBR/5K1N/p3nQpb/1b2r2n/2rBq1k1/1N3P2/2Qq1nq1 b - - 0 1 illegal: Other
1Q3n2/2pnKp2/2P1bNR1/k2qR1QR/p3n2q/4NBNr/1qBQ3b/N6r b - - 0 1 legal: proof: f4 b5 g4 g5 a4 e5 axb5 h6 d4 Bc5 dxe5 Bd6 Bd2 Bf8 Bb4 Nf6 Be7 gxf4 g5 Ng8 g6 Rh7 Bh4 Rh8 Bg5 hxg5 Kd2 d5 Kc3 Kd7 Kd4 a5 e4 a4 b4 g4 h4 f3 c4 g3 b6 Kc6 b5+ Kb7 e6 g2 Ke5 f2 g7 d4 c5 d3 h5 d2 e7 Rh6 e8B Bf5 Na3 Rf6 h6 Qc8 h7 Rd6 h8Q Nh6 g8N Rd4 Kf6 Rd5 e5 Be6 Ne7 Qd7 Ne2 g1N Qg7 Bf5 e6 Bc2 Rh5 Rd3 Qg5 Nf5 Ng3 Bb3 Nd5 Qd8+ e7 Nd4 Nc2 Nh3 Nde3 Be6 Ra2 Rc3 Bd3 f1Q+ Bf5 Rb3 Na1 Qg2 Bc2 Nf2 Qe2 d1Q Qd2 Qgd5 Bd7 Qc1 Bc6+ Kc8 Ra3 Qb2 Ra2 Ra5 Ba8 Kd7 b7 Rd3 b6 Kc6 Ra3 Kb5 Rb3+ Ka6 Rb5 Bh6 Qg6 Bf4 Qg5 Nbc6 b8Q Ne5 b7 Ne4+ Kg7 Rc3 e8N Nd7 Nf6 Rd3 Ne2 Bh2 Ng3 Qe7 Kg8 Qed6 Kg7 Qf4 Kg8 Qh4 Kg7 Nb6 Kf8 Nd7+ Ke7 Ra3 Qh8 Rb3 b8R Rd3 Rg8 Rc3 Rb3 Rb5 Rg6 Ka5 Qc8 Rb8 Qb7 Rh8 Qb8 Rh6 Rb4 Rd3 Qe2 Rd1 Qd2 Rh1 Bb7 Bh3 Ba8 Ne6 Bc6 Nef8 Rd4+ Nc3 Re4 Be6 Re5 Rh7 Bb5 Rh6 c6 Rh7 Be2 Rh8 Qd4 Ne4 Bf3 Qg4 Rh7 Qh5 Rhg7 Rh6 Rh7 Qg4 Qd3 Rh3 Rh5 Qh4 Qd2+
6R1/2p1p3/N1nqrq2/NRR1B3/B1K3pN/2B1r1b1/n4Pnr/QQk1B2b b - - 0 1 illegal: No possible last move, all moves rejected
4br1B/1p2r1RB/1Q1Qrp1q/3Pq2B/1p1N2N1/1nR3bb/1K4B1/1nR1kN2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 a4 Ke7 g4 Kd6 e4 Kc5 d4+ Kb6 Kd2 Ka5 Kc2 c5 d6 h5 e5 h4 g6 f3 g5 f2 g7 c4 e6 h3 d7 h2 g6 c3 e7 Ra6 e8B Qf6 d8Q+ Rb6 Nd2 Bd7 Ra2 Ne7 g8B Qe5 g7 Na6 Bh7 Nd5 g8N Bd6 Nf6 Nc5 Ne2 Nb3 Ng4 Rf8 Bg2 f1B Rg1 h1Q Bb2 Qh6 Ba1 Ka6 a5 Kb5 a6 Bb8 a7 Re6 Kb1 c2+ Kb2 c1R a8R Nc3 R8a3 Nb1 Qf6 Rc3 d5 Kc5 Nd4 Re3 Qd8 Bfb5 Nf1 Kc4 Qf6 Re7 Qd6 Bf5 Qc1+ Kd3 Qcc7 Re6 Qcb6 Re1 Ng3 Kd2 Nf1+ Kd1 Nf6 Bh3 Ng4 Nc5 Rc3 Nb3 Ra8 Bc7 Rc8 Bb8 Rc2 Re4 R8c3 Ke1 Bd7 Re7 Bdf5 Be8 Bfg6 Qef4 Bh5 R4e6 Bf5 Qe5 Bh7 Bc7 Nf6 Bd8 Rc7 Qhe3 Bgf3 Bg2 Ka2 Rd7 Ne2 Q5g5 Be5 Qef4 R7c3 Bh3 Kb2 Qh6 Nd4 Qe3 Rg6 Be7 Ng4 Bh4 Rg8 Bg3 Bh8 f6 Rg7 Qe5 Bg2 Rde7 Rc1+
2N2k1B/1p5R/2NpQ3/1R2Q1b1/bbq2qPQ/RB1Qr1Br/pK1n3n/r7 b - - 0 1 illegal: No proof kernel
8/1pN1qnk1/Bp1qBp1q/Q3b1r1/1N1n1P2/2RN1nRQ/RKbN4/3r1Q2 b - - 0 1 legal: proof: c4 d5 cxd5 Bg4 b4 Bh5 b5 Bg4 b6 Bc8 g4 axb6 d4 h5 gxh5 e5 d6 Bf5 d5 Bh3 Bb2 Bc8 Bd4 exd4 Kd2 c5 Kc1 g5 f4 d3 e4 d2+ Kb2 c4 h4 f6 a4 Kf7 d7 g4 d6 g3 h6 g2 h5 Qc7 d8R Rh7 a5 Na6 e5 Rb8 d7 Nb4 e6+ Ke7 a6 Rg7 h7 Rg5 h8Q Qc6 a7 Qf3 a8N Na2 h6 Nc3 h7 Qe3 Ra2 Ne2 Nc7 Nd4 Ne2 g1N Rh3 Nh6 Rg3 Ngf3 Nc1 Nf7 Nd3 Ra8 Qe2 d1Q Nd2 Raa5 Qg7 Rad5 h8Q Qe4 Qh3 c3+ Ka3 c2 Kb2 Qg6 Qgh6 Qe1 Q6h5 Qh6 Qeg2 Qe5 Be2 Qd6 Qf1 Bg7 Rh8 Bf8 d8N Bd7 Rg8 Ba4 Rg6 Bg7 Nc6+ Kf8 e7+ Kg8 e8B Bb3 Qb1 c1Q+ Ka1 Kf8 Ncb4 Qa3 Qbf1 Bc2 Bd7 Qe7 Be6 Rd7 Nc6 Qad6 Kb2 Kg8 Ncb4 Kh7 Nc1 Bf8 Ba6 Rd8 Rg8 Rd7 Rh8+ Kg7 Ncd3 Qe5 Nc6 Rg6 Ncb4 Qe8 Ne4 Bd6 Nc1 Qe7 Ncd5 Bb8 Rc8 Ne2+ Rc3 Qd4 Q5f5 Rg5 Qe5 Bd6 Nc7 Qc5 Qd5 Be5 Qf2 Qc6 Qa5 Rd1 Qff1 Ned4 Nd2 Qcd6 Ncd3
BnNR2r1/kp1b2q1/p2nbqbR/n1pRQ3/1Q1B4/KP2B2N/8/2Q1Rr2 b - - 0 1 illegal: No proof kernel
2q2N2/1pR1Np2/kR1r1PBb/Br2bN2/K1p2Q2/nB6/3n1NRr/1q4qQ b - - 0 1 illegal: No possible last move, all moves rejected
1n1n1K2/P1Q5/RB2N1r1/1p1pRbb1/1N2nrB1/1q1Q2k1/Qqp5/R1B2r1B b - - 0 1 illegal: No proof kernel
3rn1R1/p3B2K/1brR2Nb/Nq1P1b2/2k1p3/4nRQB/2q2pn1/QB1N1N2 b - - 0 1 illegal: No proof kernel
1b1BKn1b/p2rNrN1/1R4Nr/1QPNQpB1/6R1/3q4/B1R1p2q/1b4kn b - - 0 1 illegal: No proof kernel
kBn1B3/p1r3R1/qp1BN3/R3bK2/nQ1PQ2R/r1q1Npq1/3rb3/2N1N3 b - - 0 1 illegal: No proof kernel
b1r1NN1b/p1n2p2/k1B4q/3QBr1q/K2pQR2/R1P1B2b/3Q2rN/nB6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 b4 d5 h4 Kd7 e4 Kc7 b6+ Kb7 b5 g4 c3 f3 Kc2 f2 Kb3 g3 h6 g2 h7 d3 e5 d2 e6 d4 h5 Na6 h6 Bb4 e7 Bd6 e8B Bf8 Rh4 Bd7 Ka4 Bb4 Nf3 g1Q Bd3 f1R Ra3 Qg4 Nh2 Qe6 Rf4 Kb8 b7 Nf6 Qc2 d1B Be3 Qdb6 Nd2 Qe5 Nc4 Rg8 h8N Ng4 h7 Bf8 Ng6 Bg7 h8Q Nc7 Nd6 Qh5 Qh7 Bf3 Nf8 Bh8 Qd2 Rf2 Qf5 Rg2 Qe5 Rg5 Bb1 Rf5 Qe4 Bc8 Bd7 Qc6 Ne8 Qch6 Bc6 Bd7 Bg1 Ne3 Qd5 Nc2 Be3 Ne6 Nd6 Kc7 b8B+ Kb6 Ne8 Na1 Be5 Nc7 Qe4 Be6 Qd5 Rc8 Qe4 Kc5 b6 Bd7 b7 Kb6 b8Q+ Ka6 Qec2 Be4 Qbb3 Bd5 Qe4 B7e6 Bd7 Ba8 Qbd5 Rf6 Qc1 Bh3 Qd2 Rf5 Bc6
2NR4/pbnpp2q/q2n1B1R/3r4/Rb1Q1KN1/2B1Q1NN/BP2r1r1/5n1k b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 c4 Ke5 g4 h5 f6 d3 b6 h3 f7 h2 c5 d2 c6 h4 g5 h3 b7 Bh6 f8Q Nf6 c7 Ng8 g6 Nc6 b8B Nb4 g7 Nd5 Ra4 Ngf6 g8N Bb7 Nc3 Ne4 c8N+ Nd6 Bc4 Qa5 Ne4 Nc7 Nf6 Qa6 Ba2 Bg5 Qb3 d1R Qg7 Bd2 Qe3 Bb4 Bd2 Kf5 Bc3 Rd5 Kg3 Rh6 Ng4 Re6 f4 Ree5 Nef2 Re4 Ne2 Re6 Ra1 h1Q Qgd4 h2 Nh3 Qe4 Rh1 Qb1 Rf1 h1N+ Kf3 Ng3 Rh1 Nf1 Rh2 Kg6 f5+ Kh5 f6 Kh4 f7 Qh7 f8R Ree5 Ng3 Re6 Qef4 Re2 Qfe3 Qhd3 Nf4+ Kg5 Nb6 Nf5 Nh6 Ne6 Be5 Nd6 Ngh5 Nc7 Bg7 Re8 Nc8 Qh7 Rg8 Rf8 Ng3 Rf6 Rd8 Rff5 Rg2 Kh4 Ng4 Rh5 Ne6 Kh3 Kf4 Rh4 Bf6 Rh6 Rg1 Rh4 Rh1+ Kg2 Ng5 Rh3 Nh5 Rg3 Rh3 Qg8 Rh4 Qh7 Nh3 Kh1 Qee5 Rgg2 Qee3 Rg1 Ng3+ Kg2 Nf5 Kh1 Rh6 Rgg2 Ng3+
1rBrk3/pp1n3P/5B1b/qq2Qbp1/NRNB1B2/NbR5/1RQK2n1/7q b - - 0 1 illegal: No proof kernel
2b1r1nk/3NR3/2r2B2/2NKnn1N/1Bp2P2/1pN3Q1/2nQBp1b/1RqQn3 b - - 0 1 illegal: No proof kernel
1R2b1B1/bN1n4/6pq/1Q1R3B/1p1Nb1nb/1P1Nk2K/p1r3BN/1Q2Qb1r b - - 0 1 illegal: No proof kernel
2N1NkbR/r6R/bp3r2/Q1QPRnbq/n5b1/3B3p/pbK5/1NBNQ3 b - - 0 1 illegal: No proof kernel
KQr1R3/6pq/5N1p/BQnQr1Rn/3RR1B1/k2N1n2/P1p2b1B/2nn1b2 b - - 0 1 illegal: No proof kernel
2rb3k/b1Prb1q1/3RRnb1/2R1Nn2/5pQ1/3p1NpK/2B5/1RQ1NQBb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 f5 Kg3 Kf7 h4 g5 b4 Kg7 c4 d5 e4 a5 e6 d3 b6 a4 e7 a3 e8Q a2 e5 d4 c5 d2 e6 Ne7 b7 Na6 b8Q Qd7 c6 Nd5 h5 Ndc7 e7 Kh7 b5 Nd5 b6 Kg7 c7 Rg8 h6+ Kh8 b7 Nf6 h7 Rg7 Na3 Nb4 Nf3 Nc6 Rb1 a1B Bd3 f4+ Kh2 Bb2 Bc2 d3 Qh5 Nd4 e8R Nf5 Qf1 d1B Re6 g3+ Kh3 g2 Be3 g1B Qg4 Be7 Qa7 Bc3 b8N Bb7 Nc6 Rc8 Nce5 Bcb4 Rd6 Bd8 Qc5 Ba8 Re6 Be2 Qc4 Bbe7 Rb5 Qd4 Rc5 Bc6 Qc3 Be8 Qb2 Bg6 Qbc1 Qb2 Nb5 Qa1 Ne1 Bf3 Nd4 Bf2 Rg1 Bh1 Rd6 Qa2 Ndf3 Qg8 Rg2 Bg1 Re2 Rf7 Bd4 Qg7 Re3 Bf8 Re4 Rd7 Be3 Bfe7 Bf2 Bh2 Bg1 Bg3 Rb4 Bf2 Rb1 Bd4 Ra5 Bb6 Rc5 Ba7 Rb8 Bf7 Rdb6 Ng8 Rd6 Be8 Qh4 g4+ Kh2 g3+ Kh3 Qf7 Rb3 Kg7 h8R Qf8 Rhh6 Bf7 Rhf6 Bg6 Qg4 Kh8 Rbb6 Qg7 Rfe6 Nf6 Rb1
3N1b2/K1P1N2n/1Q1B1Q1n/2rRrQR1/k2p1p1n/2pbn1R1/2B3Qq/n2B4 b - - 0 1 illegal: No possible last move, all moves rejected
1rn1k1BQ/1P3p2/1pb1bbr1/N2qQb2/N2B1R1B/2N2p2/n3QK2/R4bB1 b - - 0 1 illegal: No proof kernel
KQNqk1B1/PNRp4/3R4/bR2bR2/1QN1rrb1/2pp2b1/3B4/Q1bn2n1 b - - 0 1 illegal: No proof kernel
B6b/1b3N1K/6rn/NR1r1p1k/2Q1P2r/Q1pR1n2/Q1bpRB2/1b1B2Rq b - - 0 1 illegal: No proof kernel
r1Q2qQ1/1k5b/R2Q1B1R/br1p3n/1Nr2p2/4nN2/PB2p2R/1nr2BQK b - - 0 1 illegal: No proof kernel
B3Rnq1/4R1k1/2Q2N2/p3Bbnr/1R1rQK2/1Q4pp/P2Q2br/1NnB3r b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Bg5 hxg5 Qb6 Bb2 Qc7 Bc1 Qd8 Ke2 Kf7 Ke3 e5 d4 h5 f4 a5 c4 b5 d5 g2 g6+ Kg7 c6 h4 c5 b4 c7 h3 f5 g3 c6 b3 f6+ Kh6 g7 b2 f7 Bg4 c8Q Rh7 f8R Bh5 d6 Nd7 c7 Bf3 Re8 Ngf6 g8Q Nf8 Qc4 Kg7 d7 Rh5 Ne2 g1R Nf4 Rg2 Qdb3 Rh2 Nd5 N6h7 Bg2 Ng5 Re1 Rb8 Bh1 Bg2 Nf6 Rb4 Qa8 Ra4 Qcc6 Rd4 Bd2 Qc8 d8Q Qe6 c8B Qg8 Na3 b1B Bc3 Bd3 Bg4 Bb1 Bd1 Bc2 Ke2 e3 Rb1 Bf5 Rb2 e4 Nb1 Rc4 Be5 Ra4 Qd2 Rb4 Bc2 Rd4 Kd1 e2+ Kc1 e3 Bd1 Rh7 Qe4 Rh8 Qac6 Rh5 Kc2 Rc4+ Kd3 Rb4 Rf1 e1R Rf2 e2 Ke3 Rd4 Kf4 Rg1 Rf3 e1N Rd3 Ra4 Rd6 Rc4 Rde6 Rd4 Qf3 Rf1 Rb4 Rg1 Qb3 Nd3+ Ke3 Nc1 Kf4 Bf1 Bhf3 Rgh1 Bfe2 Rh8 Ba6 Rh7 Bb7 Bg2 Ba8 Rh5 R6e7+
k1BQ1KB1/q1Q4b/Nb5n/p2B1R1R/r2bpR2/rp3N1n/1PQ3n1/1n2B3 b - - 0 1 legal: proof: e4 f5 c4 fxe4 a4 g5 h4 d5 cxd5 Nc6 a5 Nb4 a6 Nxa6 hxg5 Nb4 Bc4 Na2 Bd3 Nc3 Bf1 Na2 Ke2 Kd7 Ke3 e5 g4 h5 f4 a5 d4 c5 f5 Kc7 f6 Kb8 g6 b5 d6 b4 d5 h4 g7 h3 f7 h2 g5 b3 d7 c4 g6 c3 d6 c2 Bd2 c1B Bh3 Qe7 d8Q Rh4 d7 Nc3 Qc2 Nh6 g8B Bg7 Na3 Nb1 f8R Kb7 Rf6 Rb8 Nf3 Ka8 Rf4 Rb4 Qdc7 Ra4 Nb5 Ra3 d8Q Bf6 Rf1 h1N g7 Nf2 Bc4 Qf7 g8B Bh8 Bhe6 Nh3 Bd7 Qd5 Bde6 Qb7 Bf5 Qb8 Bcd5+ Bb7 Bc8 Qa7+ Ke2 e3 Kd3 e2 Ke4 Bc6 Be1 Be3 Rf2 Bb6 Rf1 Ng4 Kf5 Nh6+ Ke6 Bf6 Rf5 Rha4 Rf4 Bh8 Ke7 e4 Kf8 Bhd4 Nc3 Bb7 Na2 Bc6 Nb4 Bb7 Bc3 e1N Na6 Ng2 Be1 Bc6 Bde6 Bd7 Bd5+ Qb7 Rh1 Bf5 Rh2 Bh7 Rh1 Ng5 Rh5 Nh3 Rhf5 Nd2 Rd1 Nb1 Rd2 Ne3 Rh2 Ng2 Bc4 Qa7 Rh1 Nf2 Rhh5 Nh3 Bcd5+
2n3Q1/3b2Q1/1RRNn1PK/1q1p2rB/2R2B2/pr2pRB1/4br1N/b3Nk1b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 b4 e5 f4 d5 c4 h6 c5 h3 b6 d3 g5 a4 c6 a3 g6 d2 c7 Ke3 f6 Kf2 f7 h2 b5 e4 b7 Qf6 f5 Bd7 c8N Bd6 f8R Bc7 b6 Bd6 Nh3+ Ke3 Be2 Be5 Nf2 Qc6 f6 Na6 b8R Nc5 b7 Ne6 f7 Ne7 Nd6 Qb5 Ra2 Ra4 Rc2 Nc8 Rc4 Rb4 Qc2 Bf6 Qb2 Rb3 Bd1 Rh7 Ng4+ Kd3 Bf3 d1B Bf4 e3 Nd2 Be2 Rhc1 h1B Rc6 Bh8 R1c4 Rg7 Qf6 Rh7 Qd8 Ba1 Qf6 Rh8 Qg7 Rg8 Ra8 Rh8 b8B Rh7 Raa6 Rh8 Kh4 h5 Rab6 Rg8 Bg2 Rh8 Nf3 Rg8 Ne1+ Kd2 Kh3 h4 Bf3 Rh8 Nf2 Rh5 Kg4 Rf5 Qg8 Rf6 Kh5 h3 Kh6 h2 Bh5 Rf5 Ng4 Rg5 Re8 Kd1 f8Q Kd2 Qfg7 Kd1 Nc2 Kd2 Rf8 Kd1 Nd4 Ke1 Nc2+ Kf1 Rf5 Bg2 Rf6 h1R Ne1 Rh3 Rf8 Rf3 Bg3 Rf2 Rf3 Nf4 Nb7 Ne6 Bbf4 Bh1 Nd6 Bf6 Q7f7 Bb2 Qfg7 Ba1 Nh2+
2nk1n1b/1Q1nq2R/3RP1R1/p2b4/2pB2p1/1rb3N1/3QBnN1/BB1rN1K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 c5 b4 g5 h4 a5 d4 f5 e4 c3 d5 c4 b6 c2 b5 f4 d6 f3 d7+ Ke7 h5 Nf6 e6 Na6 b7 Rh7 b8Q Ng8 h6 Nb4 e5 Bb7 b6 Nf6 Na3 Na6 Bb2 c1B Nc2 Bg7 Qd2 Nc7 Be2 Bd5 b7 Bh8 Bd4 Bb2 Rd1 Bc3 Ne1 g3+ Kf1 Rg7 h7 g4 Rh5 Qe8 d8N f2 Qa7 Qf8 b8R Nd7 Rb6 Rb8 Qb7 Ke8 e7 Ne6 Rc6 Qf7 Rh2 Nef8 Ne6 Rg6 Nf4 Rd6 Nfg2 Qf6 Qa6 Rb3 Qb7 Qh4 Nh3 Qf6 Ng5 Qe6 Ne4 Qf6 Nh4 Qg7 Kg2 f1N Kg1 g2 Ng3 Ne3 Rh3 Nf5 Rh1 Rh6 Rg6 Nd6 Rh3 Nc8 Rh2 Kf7 e8B+ Ke7 e6 Kd8 Rh3 Qe7 Bf7 Bg7 h8B Rh5 Bg8 Rf5 Bh7 Rf1+ Kh2 g1N Nhg2 Bf6 Rh5 Nh3 Rhh6 Rf4 Kh1 Nf2+ Kg1 Bb4 Ba1 Bb2 Bd4 B4c3 Rg5 Rf3 Bb1 Re3 Rh7 Rd3 Bc5 Bh8 Rg6 Bbe5 Qg5 Bc3 Bd4 Rd2 Qh6 Rc2 Rd3 Rc1 Qd2 Rd1 Be5 Be4 Rd6 Bd5 Bd4
3B3b/5rn1/1nQKpprB/q4RQQ/p1kn3N/3RP1R1/3rN1bQ/3N1r2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Kd7 h4 Kd6 d4 c5 b4 a5 g6 a4 h5 f6 g7 e6 h6 c4 h7 f3 Ke3 f2 b6 f1R b7 c3 b5 c2 b6 g3 Nc3 g2 Rh5 Nh6 g8Q Qc7 Ra3 Nf7 Rf5 Be7 Qg5 Na6 b8Q Bb7 Qc8 Re8 h8N Nh6 Ng6 Rb8 Nh4 Nb4 Ke4 Bc6 b7 Rd8 Rb3 Ra8 b8Q Ra7 Qa6 Bf8 Qc4 Ba8 Qc6+ Ke7 Ra3 Qa5 Qh2 Bg7 Bd2 c1N d6+ Kf7 d7 Ke7 d5 Bh8 Kd4 Nb3+ Kc4 Nd4 Bf4 Bb7 e3 Ba8 Nge2 g1R Ra2 Rg2 Rc2 Rg8 d8R Rg6 Rd2 Rc7 Rg8 Bb7 Rd3 Ba8 Ng1 Rd2 Qdh5 Ra7 Nge2 Rb7 Re5 Nhf5 Nd1 Ng7 Rf5 Ra7 Qb6 Kd7 d6 Bg2 Qa6 Rb7 Qa8 Kc6 d7 Nd5 d8B Qb6 Qa6 Rf7 Qc8+ Qc7 Qa8+ Kb6+ Qc6+ Ka5 Kc5 Nb6 Ng3 Qa7 Kd6+ Kb4 Ne2 Qa5 Qgg3 Nb3 Bh6 Nd4 Qgg5 Ra7 Qh1 Rf7 Qcf3 Kc4 Qgg3 Rg4 Qhh2 Rg5 Qhg4 Nh5 Qc6+ Kb4 Rg6 Ng7 Qh5 Rg4 Rf3 Rg5 Qf4 Rg3 Rg5 Rg4 Rf5 Rg5 Rg3 Rg6 Qcf3 Kc4 Qfg5 Qc3 Qe4 Qa5 Qc6+
Q1q1rnB1/Qr4Rn/2p1n1N1/2Q1B1Q1/1Br1R1p1/NP3bb1/1p1K3R/1r4k1 b - - 0 1 illegal: No proof kernel
5Q2/1rBn1r2/2p2b1p/1nk1b3/qR5p/1P1Qr2B/N1BRR1b1/1Nr2NKR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 e4 a5 g4 f5 b3 h6 g5 c6 g6 f3 g7 f4 e5+ Ke7 b6 a4 d6+ Kd7 b7 a3 d5 a2 Qd3 Na6 Ne2 Qe7 Kg1 Rb8 Ng3 Nf6 g8B Bg7 Bh7 Re8 Bh3+ Qe6 Be4 Nc7 Nf1 Nb5 Be3 Qf5 Bb6 Re6 Bc7 f2+ Kg2 f3+ Kh2 Ke8 d7+ Ke7 d8R Qg4 Bf5 Nd7 d6+ Kf7 Bh7 Qa4 Be4 Re7 e6+ Kf6 Bh7 Ke5 Bg6 Rf7 e7 Bf6 e8Q+ Re7 Qf8 Re6 Re8 Re7 Qc3+ Kd5 Bc2 Re3 Qd3+ Kc5 Re4 Nc3 Rb4 Nb5 Ng3 Be5 Re1 f1R Re2 Rf2+ Kg1 Bf6 Nf1 Be5 Na3 Bf6 Rae1 a1B Nb1 Bae5 Rc1 Ra8 b8N Ra7 Rce1 Rb7 Rd1 Nb6 Rc1 Bf5 Rce1 Be4 d7+ Be7 Qg7 B7f6 d8R Bd5 Rd6 Nd7 Qf8 Rg2+ Kh1 Rg7 Rd1 Re7 Kg1 Rf7 Rdd2 Be4 Re6+ Bd6 Re7 Bde5 Rh2 Bd5 Rh1 Rg7+ Ng3 f2+ Kh2 f1R Rf4 Rc1 Nf1 Rf7 Kg1 Bc3 Rd4 Rf3 Ree2+ Be7 Rf4 Re3 Rg4 Bg2 Rf4 Bd4 Na6+ Kd5 Nb4+ Kc5 Na2 Be5 Qa8 Bd8 Rb4 Bdf6 Qf8+
2n5/2R3Q1/BPR4N/1Kn2kpQ/rnB5/r1Np1bBb/1pN3b1/q1b1Q1B1 b - - 0 1 illegal: No proof kernel
R5RN/4N3/Qppn1p2/1k1rB3/b3r3/n2N1Pbn/b1QB4/qnK1Q1NR b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 Be4 Kd6 Bg2 Kc5 d6 Kb6 Bd5 exd5 Bh6 Kb5 Bc1 Kc6 Kd2 g5 e4 g4 a4 b6 h4 b3 h6 d4 h7 d3 h5 g3 a5 g2 e5 b2 h6 Ra7 f3 Ne7 a6 Kb5 e6 c6 Qc2 Nf5 e7 f6 e8Q Rc7 a7 Na6 a8Q Nb4 Qe1 Be7 Kd1 Re8 h8R d2 h7 Ba6 Qb7 Qa8 d8N Rd7 Rg8 Bf8 h8N Re4 Ne6 Rd8 d7 Nd6 Qc3 Nc2 Nf4 Na3 Qc2 Bh6 Nd3 Bf4 Qc8 Bg3 Ra2 Ka5 Qb7 Bc4 Nc3 b1N Nd5 Kb5 Ne7 Qa4 Ra1 Ba2 Qa7 Ra8 Qb7 Ra5 d8B Qd4 Bc7 Qa4 Ne2 g1N Qa8 Nh3 Ng1 Ra7 Bb8 Rd7 Bc7 Nf5 Be5 Rd5 Bcb2 Nd6 Bbc3 Qd4 Bb4 Bb3 Ra2 Qa1 Qa7 Ba4 Ba5 Bb3 Qa6+ Ka4 Rb2 Nac4 Qb7 Kb5 Qc8 Nf5 Ra2 Nfd6 Ra4 Nca3 Bb4 Bc4 Ra8 Ba2 Qb3 Nac4 Kc2 d1B+ Kc1 Nca3 Bd2+ Rb4 Qc3 Ba4 Qc2 Re4 Qa6#
1B1Qr1B1/R1rN1R1r/PK6/2B2Np1/RNkRp3/1b1n3p/1qrbb1Q1/3n4 b - - 0 1 illegal: No proof kernel
3Q4/1K1n1N1q/pN1Bn1b1/2b1RP1Q/2B3Bn/N1Q1r1k1/1r3prp/r2R2B1 b - - 0 1 illegal: No proof kernel
7k/3N1qnp/3N2RK/3B1rr1/p4rrP/1BRNb3/1QpQB3/b2n1NQb b - - 0 1 legal: proof: f4 e5 c4 b5 a4 d5 axb5 dxc4 b3 Bd7 Bb2 Bh3 Bd4 Bc8 fxe5 g6 Be3 g5 Bf4 gxf4 Kf2 a5 Kf3 f5 h4 Kf7 e4 Kg7 g4 c5 d4 a4 b4 c3 g5 c4 d5 c2 e6 c1B g6 c3 e5 c2 e7 Bd2 e8N+ Kh6 g7 Bd7 b6 Bc1 b5 Bca3 b7 Qa5 e6 Qc7 b6 Bb2 d6 Na6 b8N Ne7 g8B Nc5 b7 Nd5 e7 Nc3 Bb3 Ra5 Nh3 Ne6 Nd2 Rg8 Rg1 Ng7 Ra3 Ba1 Be2 Bc6+ Bd5 Rc5 d7 Ra5 Qc1 Nd1 d8Q Qd7 Rg3 Qe6 Re3 Qf7 Nd7 Rc5 b8Q Ba8 Kg2 f3+ Kh2 f4 Nf2 Ra5 Nd3 f2 Kh3 f1R Kg4 f3 Nd6 f2 e8B Be7 Qcb2 Bg5 Qa7 Rb5 Bb3 Bh1 Qad4 Rg1 Nf1 Rf5 Rf3 Be3 Rg2 Qe6 Bf7 Qe7 Bfd5 Qf7 Qa5 Kg6 Qd2 Kh6 Ng3 f1R Qa7 Rf2 Nf1 Kg6 Rf4 Kh6 Rc4 Kg6 Rc3 R2f4+ Kg3 Ne6 Qc5 Kg7 Kh3+ Kh8 Rg6 Ng7 Qa7 Rc4 Qb6 Rg2 Qd4 Rgf2 Kg4 R5f4+ Kg5 Rc5 N3e5 Rg2+ Kh6 Rgg4 Nd3 Rf8 Bdf3 Rcg5 Qb6 Qc4 Qd4 R8f5 Bb7 Qf7 B7d5 Bf2 Q4e3 Bg1 Qg3 Be3 Qg1
1RBN2nB/4B1p1/2n5/k1Q1N2b/r1p1QRQ1/q1bb4/1PR1rp1K/1Bbr4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 f5 e4 c5 d4 Kc7 h4 Kb6 e5 a5 d6 c4 h5 f3+ Kh2 f2 d7 a4 e6 f4 d5 a3 h6 f3 d6 a2 h7 Ra7 e7 Rc7 e8B Rb7 Bd3 f1B Nh3 f2 Nd2 Ne7 Ng5 Nec6 Ndf3 Qc7 d8Q Ra7 Bd7 Ka5 b6 Ne7 b7 Nbc6 b8R Ng8 Bb1 Bd3 Qe7 Qb6 Bf4 Qb4 Ne5 Qa3 Ne6 Ra8 Bg5 g3+ Kh3 g2 Nd8 g1B Qg4 Bb7 Bc8 Bh2 d7 Bf4 Rc1 Ra7 Rc2 Bc1 Kh2 Ra6 Qe8 Bb4 Be7 Bc3 Qeg6 Rb6 Q6e4 Rb4 Ndf7 Ra4 d8Q+ Kb5 Qf8 Ka5 Be6 Bc8 Nd8 Bd7 Qff5 Be8 Bc8 Bh5 Qfg5 Nh6 Q5f5 Re8 h8B Ng8 Re2 Na7 Re3 Nc6 Rf3 Rf8 Rf4 Rf6 Bc2 Re6 Rb1 a1R Qf8 B1d2 Rc1 Be3 Bb1 Bed2 Rc2 Bc1 Ng6 Re5 Qh1 Re1 Ne5 Re2 Qe4 Be3 Ba2 Rd1 Bb1 Bed2 Qf7 Bc1 Qfd5+ Qc5 Qd6 Qa3 Qc5+
1NnNQnk1/b1B2Pqb/5Rb1/4NQ1Q/R1r2rB1/1KB1pp1B/7p/1b5n b - - 0 1 illegal: No possible last move, all moves rejected
1BQRB2n/q4p2/b4nPk/N2p4/pRrQ1r2/N2B2bn/KR1Nr1n1/3B4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 h5 b4 d5 g4 a5 e4 a4 c4 h4 Kc2 f3 Kb2 f2 g6 h3 g5 h2 b6 d3 c5 d2 g7 Rh6 e5 Rh7 c6 Rh5 c7 Qe7 e6 Nf6 g8R Rh3 b7 Nh7 b5 Na6 b8Q Rh4 b6 Nf6 b7 Nc5 Ka2 Nd3 Na3 Rc4 Nf3 Ne5 Rb1 Ng6 Bd3 f1R Rb2 Nh8 g6 Rf2 Qg1 d1N Nd2 Rff4 Qd4 Ne3 Re1 Qd7 e7 Ng2 Re4 Ra7 Qa8 h1N b8N Ba6 c8B Nf2 Nc6 Nh3 Na5 Rac7 Qb7 R7c6 Qa8 Qa7 Bg4+ Rc8 Qb7 Rc2 Bd1 R8c4 Ndb1 Re2 Nd2 Rf5 Rh4 Rf4 Qa8+ Kd7 e8B+ Ke6 Qd8 Bd6 Qc8+ Ke7 Bd7 Bc7 Rd8 Be5 Be8 Kf8 Nf3 Kg7 Be3 Bd6 Nd2 Be5 Rg4 Kh6 Bg1 Rf1 Bh2 Bg3 Re4 Bh4 Bb8 Rf4 Re7 Bf2 Reb7 Bg3 R7b4
1N6/2R1p2B/1n1kbQ1Q/B1q1r1bb/7B/nrpbp1R1/1N2Q1P1/2r1R1QK b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 f4 Kd7 Kf2 b5 d4 c5 a4 h5 a5 c4 f5 h4 d6 b3 d5 b2 f6 h3 a6 c3 f7 b4 g6 b3 g7 h2 a7 Rh4 Bg5 Nh6 g8R Bg7 f8Q Ba6 Ne2 Rh5 Na3 b1B Qf6 b2 Bh4 Bf8 Rg3 Nf5 Nd4 Be2 Nc6 Bc4 Bd3 Ne3 Re1 h1R Qe2 Qc7 Ra2 Bb3 Nc4 Re5 Ra5 Bh6 Rc5 B1a2 Bc2 b1B Nb2 Bg5 Qh6 Rh2 Kg1 Nc4 Qf6 e3 Bh7 Bd3 Qh6 Ke8 d7+ Kf7 d8B Na3 d6 Be6 Rc4 Nd7 Nb8 Qc5 Ba5 Nb6 d7 Bg4 d8Q Bh5 Qdd6 Rh3 Re4 Be6 Rc4 Ke8 Qc6+ Kd8 Qcf3 Kc7 Qff8 Kd6 Qff6 Qd5 Rc7 Qc5 Na6 Rd8 a8Q Rb8 Qaf3 Rh2 Qff1 Rb7 Nb8 Rh3 Rg4 Rf3 Kh2 Rff5 Qg1 Rf1 Ra1 Rc1 Kh1 Nbc4 Rg3 Rb3 Rb1 Nb6 Ra1 Rc2 Rf1 Rc1 Re1
1b2Bq2/2nQpn2/nRrB1R1P/2r1BNb1/N2p4/2N1n2Q/2R1p3/1bKN3k b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Kd2 Kf7 h4 Kf6 b4 Ke5 c4 Kf4 h6 d5 h7 g5 b6 a5 b5 a4 b7 d3 b6 a3 h5 g4 c5 a2 c6 g3 c7 g2 Ne2+ Kf3 Nec3+ Kf4 Ba3 g1N Rh2 e3+ Kc1 Bg7 Bd6+ Be5 h6 Bd7 c8Q Na6 b8B Nf3 b7 Ng5 f3 Kg3 f4 Nf7 f5 Qe8 f6 Bf5 Rc2 Qf8 Bbc7 Be4 b8R e2 Bg2 Kh2 Rb6 Bf5 Qf1 d4 Qd7 Rc8 Nd1 Bg6 Bb8 Rc5 Nbc3 Bf5 Rab1 a1B Bc6 Be4 Qff5 Kh1 Qh3+ Bh2 Ba4 Bg6 Be5 Bf5 Bbd6 Bb2+ Kd2 Be4 Rc6 Ba3 Rbb6 Bb4 Kc1 d2+ Kb1 Ba3 Bb5 Bc1 Ba4 Ng5 f7 Nf6 Bb5 Rg8 h8N Nd5 Ng6 Ndc7 Nh4 Rg6 Nf5 Bd3 Nb2 d1N Ba4 Qe8 f8N Nf7 Ne6 Ne3 Nbd1 Qf8 Bb5 Nf1 Ba4 Bg5 Bb5 Ne3 Kc1 Rc4 Nc5 Rf6 Rb2 Bb1 Na4 Re6 Rc2 Rg6 Bb4 Rc5 Rf6 Nh8 Rf7 Rgc6 Rf6 Nf7 Ba3 Rc4 Bad6 R4c5 Qg4 Bhf4 Qh3+ Kg1 Qd8 Ne6 Bc7 Rd6 Be8 Rdc6 Qd7 Bh2 Bf4 Kh1 Qg3 Bg1 Qg4 Bf2 Bh2 Bg3 Qh3 Be5 Bd8 Bb8 Bdc7 Ba2 Bcg3 Bb1 Bd6 Nec7 Bhe5+
n1N2bBB/q3pkr1/2r3p1/B1pR3N/1nbQ1K2/1N2Pn1N/4Q1R1/nb5Q b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 f4 h5 Kf2 a5 Kf3 c5 d4 h4 b4 h2 d6 h3 d5 a4 e3 a3 f5 a2 b6 Nd7 f6 Qc7 b7 Qb8 b5 Ra4 b6 Ra6 f7+ Kd8 Bd3 Ra3 Bb2 Rc3 Kf4 Rb3 Qe2 Rc3 Nd2 Nh6 Bh7 g6 Nb3 Ne5 d7 Rd3 Rd1 Qa7 b8Q a1N b7 Nf3 Qa8 Rg8 b8N Ba6 Bh8 Nf5 Rd2 Rg7 Nc6+ Kc7 d8N Kd6 Ne6 Bc4 Ra2 Kd7 d6 N5d4 Rb2 Rd1 Rd2 Nb5 Rd5 Nc7 Qb7 Qb8 Na7 Qa8 Nc8 Qa7 Qb4 Na8 Qc3 Rd2 Qd4 Ra2 Qed1 Ra6 Qe2 Rg8 Ng7 Rc6 Nh5 Ke6 d7 Rg7 d8B Qa5 Qg2 Qb6 Ne2 Qa7 Rg1 h1N Ba5 Nf2 Qh1 h2 Rg2 Nd3+ Kg4 Nfe1 Ng1 Nb4 Nh3 Nf3 Kf4 Bd3 Qe1 h1B Qe2 Bb1 Rg4 Bg2 Rgg5 Rg8 Rg3 Bf1 Rg2 Bg7 f8Q Bh6+ Kg3 Rg7 Qd8 Kf7 Qc7 Rg8 Qb7 Bf8 Kf4 Rg7 Qbb5 Qd7 Qed1 Bfd3 Qh1 Qa7 Qbc4 Bf1 Qc2 Bd3 Qe2 Bc4 Bg8+
1N6/2r1pRNP/3r1b2/1pr1B1q1/rQ6/b1Rp1n1B/K1bN1B1k/1R1QBn2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 f4 Kf6 c4 g5 Kc2 d5 Kb2 b5 a4 d3 h4 b3 h6 d2 h7 d4 a5 g4 c5 d3 h5 g3 h6 g2 a6 Qd6 a7 Be6 c6 Bf7 c7 Na6 c8R Qc6 Ne2 g1B Bh3 Qc5 Nd4 Bg7 Nc6 Nc7 Nb8 Ne6 Ra6 Qd5 Rc3 Bc5 Ra1 Nd4 Rf1 Bh5 Rf2 Nf3 Rf1 Kf7 f6 Kg6 f5+ Kg5 f7 Kh4 f8N Kg3 f6 Qg5 f7 Nf6 Ne6 Nd5 f8B Bf6 Bg7 Rd8 h8B Ne3 h7 Rd6 Bh6 Kh2 Ng7 Bb6 Ka3 b2 Ka2 Bc5 Rf2+ Qg2 Bg5 Nf1 Be3 Ba3 Bd4 Ng1 Rf5 Nf3 Bf2 Qg5 Be1 Be5 Rf7 Bf6 Nd7 Rc8 a8Q Rc5 Qaa4 Bg4 Qb4 Rc7 Qdb3 d1R Nd2 b1R Nb8 Rc5 Bb2 Rbc1 Rb1 Rc7 Bf2 Re1 Qd1 Re4 Rc4 Rc5 Bbd4 Rc7 Rc3 Be6+ Ka1 Bb3 Be1 Rf4 Bdf2 Bc2 Ka2 Re4 Qa5 Ra4 Qb4 Rc5 Rb2 Rc7 Ne8 Be5 Rb1 Bd4 Rc5 Bc3 Bf6 Bd4 Ng7 Bdb2 Qe2 Bd1 Rc4 Rc3 Rc6 Bc2 Qd1 Rc5 Bc3 Rcd5 Bf6 Bd4 Rc4 Rdc5 Rc3 Be3 Be5+ Bf4 Bed4 Be5 Bd7 Bf6 Bg4 Rb6 Bh3 Rd6 Be5+
4nqQ1/1Q2p1pr/B2Rb3/K1BPn1r1/N1Q1Nn1n/1rB2p1k/5NNb/5R2 b - - 0 1 illegal: No proof kernel forced: wxDB
1nK2Nnr/3pbR2/N3nq1B/1bRB4/8/Q1r2PpQ/1Qn1kpQ1/N2Bb3 b - - 0 1 illegal: No possible last move
1b2RK2/rN1p4/n3bBP1/3q1rNN/2kpbn1R/2pR1Qr1/3NQBb1/5B2 b - - 0 1 illegal: No proof kernel
b1Q2R2/3pbrBp/7Q/1n2k1R1/N2n1r2/B3nrrq/2N1p1NP/1B1N2KR b - - 0 1 illegal: No possible last move
N2n1b2/RP1rQ2r/BBp1R3/rqR2pN1/2Q1b1B1/p1Kb2n1/N4R2/k2b4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 g4 h5 e4 a5 b4 c6 g5 h3 g6 f3 g7 h2 e5+ Kd7 b6 f6 b5 h4 d6 Ke6 b7 Kd5 e6 f2 d7 a4 b6 h3 e7 Rh7 e8R Nh6 g8B+ Rf7 Nc3+ Kd6 d5 Kc5 d6 Kb4 Re6 Qc7 d8R Ra5 d7 Qe5 Qg4+ Kb3 Nf3 Qb5 Ng5 Na6 b8N Nf5 b7 Nc5 Na6 Ng3 Na2 a3 Nc7 Rh7 Na8 f5 Be2 f1B Bf7 Rg7 Bh5 Re7 Rg1 h1B Rg2 h2 Rf2 Be4 Re8 h1R d8Q Rc7 Qe7 Rd7+ Bd3 Rh3 Bb2 Be2 Rc1 Bd1 Bd4 Rh4 Rc3+ Kb2 Rc2+ Kb1 Kc3 Ka1 Qf4 Rh2 Bg4 Rh5 Bf1 Rh7 Be3 Bd3 Qc4 Be4 Bf4 Bd3 Bc7 Be4 Bb6 Bd3 Re5 Ne6 Rce2 Nd8 Rc5 Rc7 Ree5 Be6 Re3 Bg8 Re6 Rd7 Rf6 Qb1 Qce6 Nf7 Nc7 Be4 Ba6 Qb5 Ra8 Bd3 Ra7 Nd8 Qc4 Bd5 Re6 B5e4 Na8
2r1B1n1/RpNr1Qn1/1K1n4/rPpb4/4R3/1R1B2Np/2bBQQ2/1r1qR2k b - - 0 1 illegal: No proof kernel
3Q1NB1/1pqbK2p/b1B1N2P/QR4r1/2N2rkN/5n2/2p2b1R/bnr1Q2B b - - 0 1 legal: proof: c4 a5 f4 d5 b4 dxc4 bxa5 e5 Bb2 Bh3 Bd4 Bc8 fxe5 g6 Be3 g5 Bf4 gxf4 Kf2 Kd7 Kf3 Ke6 Ke4 c5 h4 f6 g4 c3 d4 c2 a4 c1B a6 f3 d5+ Kf7 d6 Kg6 Kd5 f5 e4 f2 g5 f4 d7 c4 Ke6 c3 h5+ Kg7 h6+ Kg6 a7 f3 a5 c2 a6 Bf4 Na3 Bd6 Bg2 f1B Rh2 f2 Bh1 Nc6 Rb1 Bf8 Nf3 Nce7 Qe1 Bg2 Nc4 f1R Nh4+ Kh5 g6 Bg7 Rb5 Bf6 g7 Ng6 Qa5 Rb8 a8N N8e7 g8B Rc1 a7 Qc7 Nab6 Kg4 a8N Bf1 Kf7 Bg3 d8Q Bf5 e6 Bf2 e5 Nd5+ e7 Bd7 e8B Nc3 e6 Nb1 e7 Ne5+ Kf8 Nf3 Kf7 Bc6 Nd7 Ba1 Nf8 Bd3 Ke6 Bd7+ Kf7 B7f5 Bc6 Bd7 e8Q Be2 Ke7 Rc8 Bgd5 Rg8 Bf7 Rg5 Bg8 Rb8 Nab6 Ra8 Na4 Ra6 Nc5 Rb6 Be4 Rf6 Nce6 Rf4 Bc6 Bf1 Qg6 Bd3 Qe4 Bf1 Qee1 Be2 Nd2 Bc4 Rb3 Bb5 Nc4 Ba6 Rb5
1r2B3/p2k1Pp1/B1rpn1R1/N2Q2n1/1q1r1Q2/Bbb1K3/2NRn3/1QBR1r2 b - - 0 1 illegal: No possible last move, all moves rejected
R3B2B/nB2b2Q/1rq1k2R/n2n4/2rQ2RN/2Pp4/p1n1bp1q/N1K1Q2Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 a5 h4 f5 b4 d5 e5 g5 h6 f3 h5 d3 c3 a4 e6 d4 h7 f2 h6 g4 b6 f4 b7 f3 b5 a3 b6 a2 Rh4 g3 Bg2 Qc7 Qe1 Ra4 Rg4 Qc6 Na3 Rc4 Nc2 f1N+ Kd1 f2 Nf3 d2 Nh4 Kd6 e7 Nf6 e8B Be7 Rb1 Rf8 h8Q Nd5 h7 Rf6 Na1 Bf5 Qg7 Bd3 h8Q Be2+ Kc2 d1N Bh6 d3+ Kc1 Nfe3 Qhh7 Rg6 Qd4 Ke6 Bg7 Nb2 Bh8 Nc2 Bf3 g2 Qh1 Na6 b8Q Nac7 b7 Nb5 Qg3 Na7 b8R Rf6 Ra8 Rg6 Qgh3 g1Q+ Qf1 Qh2 Qfg1 Rc5 Be4 Nc4 Qe1 Na5 Rb5 Rc4 Bg2 Ndb4 Rh5 Nd5 Rh6 Qcc7 Kd2 Nb6 Bf6 Rg5 Bh5 Rb5 Bb7 Qc6 Be8 Nd5 Kc1 Rb6 Bh8+
r5bn/B4QrN/K6k/4r1p1/RpB2bq1/2pPN1rQ/NRqQR3/3n3R b - - 0 1 illegal: No possible last move, all moves rejected
2brb3/1RKBR2R/5qQB/2p5/4Q3/Bp1NPqkn/3p1b1b/Nn2QQr1 b - - 0 1 illegal: No proof kernel
1B2bK2/2B3Nk/q1Rnq3/1p2PQ2/1Q2rpp1/3NR1bq/1nr2B1q/4NBQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 b5 Kf3 g5 Ke4 f5+ Ke5 Kf7 a4 Kg7 e4 c5 d4 b3 h4 b2 d6 c4 h6+ Kg6 d7 g4 Ke6 f3 h7 f2 a5 c3 d5 c2 h5+ Kg7 h6+ Kg6 a6 f4 a7 Ne7 d6 Nd5 Be3 c1Q Nh3 Nf6 Na3 b1Q Nc2 Qc7 Ne1 Ng8 Ra6 Nf6 Rc6 Rg8 h8Q Qbc2 h7 Ne8 Qc3 Qb7 h8B Qa6 Be5 Kh7 Kf7 Be7 d8B Bd7 Bc7 Bh4 Qb4 Bg3 Bc5 Rg7+ Kf8 Re7 B5b6 Qe3 Rh2 Bf5 d7 Nd6 d8N Bd7 Ne6 Be8 Ng7 Qeb3 Be3 Qe6 Qd5 Qaa4 Bc5 Na6 Bcd4 Rc8 a8Q Qa3 Qa7 Nc5 Bb8 Na4 Be3 Nf5 Bec7 Nd6 Qg5 Nb2 e5 Qa6 Qad4 Rd7 Rg2 Nb7 Qdc5 Rd4 Qf6 Re4 Qf5+ Kh6 Bd4 Nd6 Bd8 Nf7 Be2 f1Q Rd6 Qca4 Nf2 Qa2 Nfd3 Nc4 Bg1 Rc6 Bdc7 Qc2 Rf2 Nb2 Rf3 Qh3 Bf1 Qch2 Qcd4 Rc4 Rc6 Rc2 Qf2 Nd6 Re3 Rc1 Qg2 Rc5 Bf2 Rc2 Qf6+ Kh7 Qg1 Qd7 Qg5 Qe6 Qf5+
q1qb1B2/1R3kN1/4Qb2/Np1p1qBr/1Pq2n2/1B3pKQ/r1R2R2/B2n2N1 b - - 0 1 illegal: No possible last move
Rrbn1bN1/1rRNn2n/Bk2n3/pB2K2p/2q2B1Q/1Rp4P/3BN3/2q4Q b - - 0 1 legal: proof: d4 b5 c4 e5 g4 f5 a4 exd4 axb5 d5 cxd5 fxg4 Kd2 Kd7 Kd3 c5 Ke4 Kc7 b4 g5 f4 h5 h3 c4 b6+ Kb7 f5 d3 f6 g3 b5 a6 d6 d2 f7 g2 d7 g4 Ke5 g3 e4 Be7 f8N Nf6 Nc3 Ra7 Nd5 Ng8 Nf6 Bb4 Ne2 Ne7 Ng8 g1N Ra3 g2 Rb3 Qe8 d8Q a5 Nd7 Qf7 Qe1 d1N Bd2 Ne3 Qd1 N3f5 Qc1 Nd5 Qh4 Nd4 Rh2 Bf8 Qce1 Ka8 Qa1 Rc7 b7+ Ka7 b6+ Ka6 Qd1 Ne6 Qb1 Qe7 Qd1 Qb4 Qde1 Kb5 Qd1 Ne7 Qb1 Na6 b8B Nac5 b7 Nd8 Rh1 Nce6 Qa1 Rc6 Bd6 Rb6 b8R Rh7 Ra8 Nf3+ Kf6 g1Q e5 Rg7 Nc1 Rg5 Bd3 Nc7 Ne2 Nce6 Qb1 Qc5 Rc1 Rb8 Rcc3 Rg4 Qh1 Nfg5 Rc1 Qg1 Rc2 Qc1 Rcc3 Ng6 Kf5 Nh7 Bc7 Neg5 e6 Re4 e7 Nge6 Bcf4 Rd4 e8B Ne7+ Ke5 Rd6 Nc5+ Kb6 Bc6 Rd7 Bb7 Rc7 Ba6 Rcb7 Nd7+ Kc7 Be4 Qa4 Bc6 Qb4 Ndf6 Kb6 Bcb5 Qa4 Rd3 c3 Rd7 Qb4 Rc7 Qc4 Nd7+
NNB1KRQ1/1Bk1nN2/qQ5p/bpB4b/r2rnb1P/2R1p2q/1b6/3B1R2 b - - 0 1 illegal: No possible last move
1B1n4/1R5Q/3N1RpQ/bN2q2k/KB4p1/nRqB2R1/n1rpP1br/1nQ5 b - - 0 1 illegal: No possible last move, all moves rejected
1kN3n1/r2Q2QN/3R1P2/2b1QBp1/1rq1R2R/2qp2B1/3p2n1/qbqQ1KB1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 c4 a5 f4 d5 b4 Kd7 b6 g3 c5 g6 c6+ Kd6 h5 g2 b5 d3 c7 d4 h6 a4 f6 a3 h7 a2 f7 e4 f5 e3 b7 e2 f6 Ra6 b6 Qe8 Nd2 Ra4 Rh4 Ra8 Nh3 g1Q Ng5 Ra4 Re4 Nc6 b8B Nd8 b7 Ra7 Nc4+ Kd7 Be3 Bc5 f8R Qf7 Nd6 Ne6 Rd8+ Kc6 Rc1 a1Q Rc4 Nf4 Rb4 Bf5 Nc8 Qh1 Bg1 Qc4 Bh3 Ng2+ Kf2 d2 Ra4 Qac3 Rd6+ Kb5 Rh4 Bb1 Bf5 d3+ Kg3 Qf7 Rae4 Qfc4 Kf3 Ne7 Kg3 e1Q+ Kf3 Re8 h8Q Ng8 Nh7 g5 Qg7 Re7 Qc2 Qc1 Qd1 Re5 Kg3 Rd5 Kf3 Rd4 Kf2 Ka5 Kf1 Kb5 Ne7 Ka5 c8Q Kb5 Qd7+ Ka5 Rd5 Ka6 Bg3 Kb6 b8Q+ Ka6 Qe5 Kb6 Qde6+ Kb7 Rd6 Kb8 Bf2 Qa6 Qef7 Rb4 Nc8 Qaa1 Qfe8 Qh2 Qed7 Qf4 Re2 Qfd4 Ree4 Qdc4 Bg3
2q2R1K/1b3r2/Q3rp1P/q1Bp4/1B1npQN1/q4B1q/QR5B/1Nk1n1bN b - - 0 1 illegal: No proof kernel
rq6/8/1Npq2R1/kbB3Bp/PNp2QN1/1n5B/Kb3NQq/Q2q1Rrn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 dxc4 d4 Kd7 Kd2 Kc6 Kc2 Kb5 Kb2 h5 f4 e5 g4 b6 a4+ Ka6 g6 e4 f6 e3 g7 b3 d5 e2 d6 e1Q g5 b5 f5 b4 g6 Bb7 f7 Be4 d7 Rh6 f6 Bc5 f8Q Nc6 f7 Nf6 g8N Ka5 g7 Bd4+ Nc3 Rg6 Bh3 Qg3 Bg5 Ng4 Nf6 Nf2 g8Q Qh2 Ng4 Bh8 Rc1 Nd4 Nd5 Bg7 Ka1 b2+ Ka2 Nb3 Nb6 Bc6 Ra1 Qf6 d8N Bb5 Qd4 Qe6 Rf1 Qed6 Qf4 Bd4 Qfg7 Bc3 f8B c6 Nf7 Bd4 Nfe5 Bc3 Nd3 Bf6 Ne2 Be5 Rhg1 Nh1 Ng3 Re6 Bf6 Nd4 Nh6 Qe7 Rf3 Ba6 Bh4 Rg6 Ne4 Qe6 Bc5 Qd6 Rgf1 Rg1 Nef2 Bf6 Nd7 b3+ Ka3 b1Q Rg3 b2 Rg5 Qc1 Ka2 Qd1 Qd5 Qf8 Nhg4 Qd6 Rg6 Be5 Qg2 b1Q+ Ka3 Qb4+ Ka2 Qbb8 Bg5 Bb5 Nb6 Nb3 Nb4 Bd4 Qgf7 Bg7 Q7f6 Bh8 Qc3 Bf6 Qcc1 Bb2 Qa1
2N1kR2/6R1/2p1p1r1/1P1rq1q1/1B3q2/3Qn1nK/b1NQBbp1/RqNRQ3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 g5 Kf2 a5 Kg3 c6 b4 e3 h4 e6 d4 e2 h5 a4 h6 a3 h7 a2 d6 Bh6 f5 Ba6 d7+ Kf7 b6 Bc4 f6 Na6 b5 Qf8 d8Q Nb4 d5 Nc2 b7 Ne3 b8R Ne7 d6 Rg8 d7 Rg6 Ba3 e1Q+ Kh2 g3+ Kh3 g2 Ne2 g1Q Nc1 Bg7 Rb7 N7f5 Be2 Ng3 Bb4 Bh8 Qa5 Rd8 Na3 Bg7 Qd2 g4+ Kh4 Qd6 Nc2 Qf4 h8Q Qef1 Qh7 Qe5 Rc7 Qff4 Ra7 Qg2 Rd1 Qgd5 Qe1 Qc5 Rb7 Kf8 f7 Bh8 Rb1 a1Q Qa2 Qab2 Ra1 Qb1 Rc7 Ke7 f8R+ Bg7 Qb2 Ba2 Qbc3 Nh5 Qb2 g3+ Kh3 g2 Qbc3 Ng3 Qcd2 Rf6 Qe4 Rg6 Qed3 Qeg5 Rb7 Bd4 Rc7 Qcd6 Rb7 Bc5 Rc7 Qde5 Rb7 Rc8 d8N+ Rc7 Nf7 Rd7 Nd6 Bd4 Rf5 Kd8 Nc8 Rd5 Rg7 Ke8 Na3 Ng4 Nc2 Bf2 Rf6 Ne3 Rf8+
2nb4/B1b1r2b/1p2Q1q1/2pP4/R1NQnqr1/1p1B2Q1/5BRb/1KR2QNk b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 a4 Kf7 f4 Kf6 h4 e5 d4 c5 Kd2 g5 Kc2 g3 h5 g4 h6 g2 h7 g3 d6 e4 d5 e3 a5 e2 d7 e1B a6 Nc6 a7 Be7 Bd3 Qf8 Be3 Bd8 Qe2 Nce7 Na3 b3+ Kb1 Bea5 Nc4 Bac7 Ra4 b6 Bf2 Rb8 a8R Rb7 Ra2 Qh6 R8a4 Ra7 Rc2 Ba6 Rc1 Nc8 Rh2 Qg5 Nf3 g1B Rg2 Bh2 Ng1 Nd6 Qe3 Ne7 Qe1 Rg8 h8Q+ Rg7 Qh4 Rg8 Qe4 Nec8 Qd4+ Kf7 f6 Ne4 f5 Qf4 Qh3 Rg4 Qh6 Kg8 Qg5+ Kh7 f7 Rb7 Qe7 Kh6 f8B+ Kh5 f6 Kh4 Qe6 Ra7 f7 Rb7 Nf3+ Kh3 Bd6 Bb5 Rgg1 g2 f8Q Bh4 d8Q Bd7 Rgf1 g1Q Qg5 Kg2 Rc2 Bb5 Rfc1 Kh1 Qgg8 Bhd8 Qff5 Qf1 Ng1 Qg2 Qgg5 Be8 Qh4 Bg6 Qg3 Bh7 Rca2 Qh6 Qff3 Ra7 Qd1 Qf3 Qf1 Qg6 Be5 Qf4 Re2 Bb8 Rec2 Re7 Bc7 Ba7 Bb8 Qgg5 Be1 Qh5 Rg2 Qg6 Bd6 Bb8 Bf2 Rf7 Be7 Be5 Bd6 Re7 Bb8 Bec7 Ba7
3q1QKb/1R1B3P/p1q1rpQR/8/3Nb2B/pnq4R/4BQr1/2Rnkq1N b - - 0 1 illegal: No possible last move, all moves rejected
BB2qnR1/q1N2NPN/4r1Q1/3Qp2p/p3Nbr1/1b1k1KQR/B3r3/2r2n2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 f4 Kf6 c4 h5 g4 d5 b4 a5 g5+ Kf7 b6 a4 g6+ Kf6 c5 e6 c6 h3 b5 h2 c7 d3+ Kf3 d4 b7 d2 b6 d3 Nc3 Ra5 Nh3 Bd6 Bg2 Bf8 Ng5 Bc5 Nf7 Nd7 b8N Be3 b7 Nh6 Na6 Ng4 b8Q Rh6 g7 Rd5 Rb1 Nf8 Qdb3 Rd7 Qd5 d1R Rb3 Bb7 c8B d2 Nc7 Re1 Bb2 d1R Ne4+ Ke7 Rf1 h1Q Be5 Re2 Ra3 Ba8 Ba6 Bc1 Bc4 Ne3 Ba2 Qe8 Rf2 Rd6 f6+ Kd7 f5 Nf1 Qbb3 Qg1 Qe3 Rde1 Qg5 Bf4 Qg3 Rc1 Rc3 Ree1 Rb2 Rg6 Rb8 Rg4 Re3 Ng6 Ra3 Qa7 Rab3 Qh8 Rg8 Re2 Nfg5 Qh7 Qd1 Kc6 Rb2 Qd4 f7 Qa7 f8N Rcc2 f6 Rc5 f7 Bc1 Nd5 Rcc2 Nd2 Re3+ Kf2 Kc5 Qdf3 Rb6 Bb8 Kd4 Nc7 e5 Qd1 Qh6 Nfh7 Bd5 f8Q Bb3 Qe8 Nf8 Ba8 Qc6 Qg6 Qe8 Nf7 Re6 Kg2 Rc5 Ne4+ Bd2 Kf2 Rc1 Kg2 Kc4 Kf2 Re1+ Kf3 Bf4 Rh2 Re2 Qd6 Bd2 Qc5+ Kd3 Rh3 Bf4 Qd5+
R2q3k/5rpn/1b1NR3/1BpBrn1Q/4n1Bq/5pP1/nKRR3N/1b2QN2 b - - 0 1 illegal: No extended proof kernel
3B4/2rp2R1/2nPk1qb/p3R1QB/1pQ1N2r/4N3/rNQ3qn/R1rQK1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 b4 hxg4 f5 c5 f6 Ba6 bxc5 b4 a4 Bb5 axb5 exf6 Nh3 f5 Ng1 f4 d4 Ke7 h4 a5 e4 f5 c4 g5 b6 f3 h5 g3 d5 g2 d6+ Kf6 c6 g4 c5 g3 c7 f4 c8Q Bh6 c6 Bg5 h6 Ra6 e5+ Kf7 b7 Ra7 c7 Ra6 h7 Ne7 e6+ Kf6 Ne2 g1B Rh5 g2 Na3 Rg8 h8R Bh6 Ng3 Nbc6 b8Q Nd4 Qb5 Ra7 Rd5 Nec6 e7 Ke6 e8N Qf6 Be2 Qg6 Rh7 Rh8 Rg7 Rh7 Nc4 f2+ Kd2 f1R Nb2 Re1 Nf1 f3+ Ne3 f2 Bh5 f1R Nf6 Rf4 Qd8 Rh4 c8Q Rc7 Qc4 Rh2 Ne4 Nf3+ Kc2 Rh4 Qg5 Nh2 Kd2 Rf1 Qcc2 Rf2+ Ke1 Rh8 Qa6 Rhc8 Qac4 Rd2 Q2b3 Rc2 Bd2 Rc1 Qa4 Rf8 Bc3 Rf2 Bf6 Rfc2 Bd8 Rf2 Nd3 Ra2 Nb2 Bf2+ Kd2 g1Q Qac2 Qg2 Ke2 Bg1+ Ke1 Qf3 Qf4 Qfg4 Qg5 Qg2 Re5#
4N1n1/R1P2qR1/1Q1b2rB/1Qn5/pBBkBQrp/p6K/2qN4/2nb1N1n b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 cxd4 c4 Kf7 f4 h5 Kf2 a5 Kg3 d5 b4 e5 c5 d3 g6+ Kf6 b5 h4+ Kh3 d4 g4 d2 c6 e4 c7 e3 g7 d3 g5+ Kf7 b6 e2 b7 e1Q g6+ Kf6 Nf3 Qe4 Bg2 Qde8 Qe2 d1N Rg1 d2 Nh2 Qd5 Be4 Ba3 Qb5 Nc3 Nf1 d1N Nbd2 Na6 b8Q Bd6 Q8b6 Rh6 Ba3 Qe7 Bb4 Qef7 Rg4 Qc5 Rg2 Ne7 g8B Na2 g7 Nc1 Ra2 Rg6 Rg3 Qe8 Bc4 Qf7 Rg2 Qf2 Ra3 Nc5 g8N+ Kg7 Nf6 Ng8 Ra1 Ra6 Ra3 Rg4 Ra2 Qe2 Rg1 Qd3+ Rg3 Qc2 Ne8+ Kf8 f6 Nf2+ Kg2 Bb7 f5 Nh1 Kh3 Bd5 Be2 Bb3 Bc4 Qd5 f7 Ke7 f6+ Ke6 f8Q Ke5 f7 Kd4 Qh6 Qe6 f8B Qf7 Qf4 a3 Rb2 a4 Bh6 Qb1 Rg2 Bd1 Rb3 Rg7 Rg5 Qc2 Rbg3 Rg6 Rh5 Rg4 Rg5 Qg6 Rb3 Qh5 Rg7 Qf7 Qb7 Nd7 Qbg5 Ra8 Ba5 Bc5 Qa7 Rd8 Rb7 Ra8 Qb8 Ra6 Bb4 Rg6 Ra7 Bd6 Qgb5 Nc5 Q8b6
3R1N1b/rkPBB3/2N2N2/2pb1bKN/p6p/q2bRQ2/2q3Rr/Qn1Q2n1 b - - 0 1 illegal: No proof kernel
1k2q3/1rPbQR2/1p2rQq1/N1bBQ3/1pB3r1/1KBr1np1/5n2/NN1RN3 b - - 0 1 illegal: No possible last move, all moves rejected
Nqn2R2/1Bp3b1/2NkQ1N1/5p1Q/2qP1pb1/n2Br1q1/QR2r1N1/q1BK4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 b4 a5 g4 f5 e4 h5 e5 a4 g5 a3 g6 a2 g7 h3 b6 h4 e6+ Ke7 d6+ Ke8 e7 Kd7 e8B+ Ke6 b5 h2 b7 h3 d7 Kd5 b6 Bc5 Nc3+ Kc6 Nd5 Ba3 Rb1 a1Q Ne3 Na6 b8Q Nb4 b7 Ne7 g8Q Kd6 Qh5 Nc2+ Kd1 Qc3 Qgf7 Qc4 Nf3 Ra7 Rg1 h1Q Bd3 h2 Qa8 Qg2 b8N h1Q Rb2 Bb7 Nh4 Nc8 Ng6 Qg3 Ng2 Bb4 Qg8 Na3 Bf7 Rh7 Bd5 Re7 Bf3 Ba6 Bb7 Re3 Qf7 Qf8 d8N Bb5 Qg8 Bc6 Nd7 Bf3+ Re2 Ra5 Nc6 Bg4 Nb6 Rae5 Qa5 Qe8 Na8 Bc5 Nb4 Qeb5 Nc6 Qb6 Qd2 Qa7 Qa2 Qb8 Kd2 Re8 Rf2 Re2+ Kd1 R8e3 Re1 Kd7 Rg1 Bf8 Re1 Bg7 Rg1 Ne7 Qe6+ Ke8 Re1 Rb2+ Re2 Qb5 Qe4 Kd7 Bd2 Rf3 Kc1 Kd6 Be3 Qc5+ Rc2 Nc8 Kd2 Rb5 Rb2 Qc4 Re2 Qa1 Re1 Nb1+ Kd1 Na3+ Bc1 Ra5 Qe8 Rd5 Re7 Re5 Rf7 Re2 Rf8 Rfe3 Qe6+
RQ1Bb1Nk/1qp2r1r/1N2p2R/1b3r2/p1BN1B1N/n2K3n/2Q1P2q/2Q2r2 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 h4 dxc4 Bh3 Bh6 Bf1 fxg4 Ra3 g3 Ra6 g4 Ra1 Bg5 hxg5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 Kf8 d4 Kg7 Kd2 a5 b4 h5 b6 h4 b5 a4 f5 e6 g6 c3+ Kd3 c2 b7 g2 b6 g3 d5 h3 d6 h2 d7 Na6 b8N Ne7 b7 Nd5 Nd2 Rh7 f6+ Kh8 Ngf3 g1Q f7 g2 Nh4 Qf8 d8B Bd7 Rb1 Be8 Rb2 Qb4 Nc4 Qf2 Be3 c1R Bf4 g1R Nc6 Rg5 b8Q Qb7 Nd4 Rf5 Qc2 Re1 Bg2 Rf1 Nb6 Nab4+ Kd2 Ra5 Qc1 Nc2 Kd3 Na3 Qc2 Nf6 Bd5 Ne4 Bc4 Ng5 Rb1 Rac5 Rb5 Nh3 Ra5 Rf6 Ra8 Rcf5 Nb3 Qc5 Nd4 Qf8 Qc1 Qg8 f8Q Rff7 Qd6 Qg7 Qb4 Qh6 Qbb1 Bb5 Qbc2 Qh5 Rg1 h1B Rg3 Bhc6 g7+ Kg8 Rg6 Be8 Ng2 Qh4 Rh6 Qf2 Nh4 Qh2 Rg6 Rhh5 Rf6 Kh7 g8N Kh8 Rg6 Rhh7 Rh6
1k1N1Q2/1Rp1p1qb/1nR1pN1Q/P1n1R1B1/1B2N3/2q1b1r1/6r1/bb1K1B1N b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 Ra7 gxh5 Ra6 e5 Ra8 e6 fxe6 d4 Kd7 a4 b5 h4 g5 f4 g4 h6 g3 f5 g2 h5 b3 h7 b2 d6 b4 h6 b3 f6 Bg7 d5 Nc6 f7 Qe8 f8N+ Kd8 Qh5 Be5 Kd1 Bf6 Nd2 b1B Ne4 b2 Nh3 g1B Nd7 Nd4 Bg5 Ba6 Nhf2 Be5 Ndf6 Kc8 d7+ Kb8 d8N Qg6 d6 Nb3 d7 Bad3 Qf3 Bd4 Rh5 Nc5 Nh1 Bge3 a5 Be5 Ra4 Qg7 Rc4 Ba2 Rc1 b1Q Qf4 Qb4 Rc2 Nb7 Rc6 Nc5 Qf5 Bc3 Qg6 Ba1 Qe8 Bd5 Qf8 Bb1 Nb7+ Ka7 d8R Rb8 Bh4 Qd4+ Nd2 Na6 Re5 Bf4 Nd7 Bde4 Bg5 Nf6 Rc8 Nd5 Nf6 Bed3 Nd8 Bf5 Bh4 Qb2 Nde4 Nc5 Be1 Rb3 Bb4 Rc3 Rb8 Rg3 Rb7+ Ka8 Ra7+ Kb8 Bc3 Rg2 Bb4 Rg8 h8Q Nb6 h7 Qf7 Qhg7 Be3 Qh6 Qa3 h8B R8g7 Ne8 R7g3 Bf6 Bh7 Bg5 Qc3 N8f6 Qg7 Rb7+
K6Q/P2k1qB1/R2qp1br/5B1N/1qp4N/4p3/Q1BbB1n1/1qr1nRRN b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 h5 Ke3 c5 a4 b5 g4 b3 d4 h4 f4 b2 g6 h3 g5 h2 d6 b4 g7 c4 g6 b3 f5 Nh6 g8B Ba6 f6 Nf7 g7 Nc6 d5 Rc8 a5 Rh4 Bh7 Nd4 g8B Rc7 Nf3 Ne5 f7+ Kd7 Nc3 b1Q Bf5+ Ne6 Bb2 Rc5 Bgh7 Qc7 Qe2 Qa2 Rg1 h1Q Nd1 Qa7 Nf2 Kc8 d7+ Kc7 d8N Rh6 d6+ Kd7 Nh4 Qh2 Nh1 Nd3 Bg7 Qb1 Qa2 b2 Be2 Bb5 a6 Ne1 Bhg6 Qb7 a7 Rd5 Bh7 Rd1 Bhg6 Kc8 d7+ Kc7 Bh7 Nf4 Ne6+ Kc6 d8R Rc1 Kd4 Nfg2 Nf4 e6 Nh5 Bb4 f8Q e3 Qh8 Bd2 Rf8 Kd7 Kc5 Qf3 Bc2 Qf7 Kb6 Qd6+ Kb7 Ba4 Bcf5 Bc2 Ka8 Bd3 Bfg4 Bg6 Bh3 Qc2 Bf5 Qa4 Bc2 b1Q Bf5 Qfe7 Bc2 Qab4 Rff1 Bf7 Bhf5 Bg6 Qb3 Qf6 Ra6 Qf7 Qa2
1N3bR1/2RrpqNq/b2N2pQ/bQN4r/KB1pQ3/B1qP3r/4B1n1/3k4 b - - 0 1 legal: proof: b4 h5 e4 f5 g4 hxg4 c4 fxe4 a4 b5 axb5 Bb7 c5 Rh6 b6 Na6 b5 Bc8 c6 Nc5 Be2 Rh5 Bf1 Nb7 cxb7 Rh8 b8Q Kf7 h4 Ke6 f4 Kf5 b7 a5 d3 c5 Kd2 d5 Kc3 e3 Kb3 d4 h5 a4+ Ka3 e2 b6 e1B h6 g6 h7 g3 Qf3 g2 Nc3 c4 Nb5 c3 Ne2 g1Q Qe4+ Kg4 Ng3 c2 Nf5 Qh2 Ng7 Qd5 Nd6 Qf7 f5+ Kg3 f6 Kf2 Bd2 c1R Bb4 Rc5 Rc1 Rh5 Rc7 Qh4 Rh3 Nh6 Rh1 Ra7 Rh3 Qc4 f7 Ng4 Rh1 Ne3 Rh3 Rg8 h8Q Ng2 Qh6 Rh8 Rh1 Bd7 Qe8 Bb5 b8B Ba6 b7 Bc3 Qb5 Bd2 Qef4+ Ke1 Qe4+ Kd1 Rh3 Ra8 Ba7 Rd8 b8N Rd7 Bac5 Be1 Bd2 Qe6 Kb4 a3 Ka4 a2 Ba3 a1Q Bb4 Qc3 Rh2 Ne3 Rc2 Ng2 Rc8 Qd2 R2c7 Qc3 Qbd5 Re5 Nc4 Qd2 Qh7 Rd8 Nf5 Bg7 f8N Qg4 Ba5 Qh4 Qb5 Qf7 Ne6 Rd7 Rg8 Bf8 Ncd6 Qc1 Qg7 Bb4 Qh7 Qc3 Nfg7 Rf5 Qh5+ Rf3 Qhg5 Rh3 Nc5 Qh6 Nge6 Qhg7 Qge3 R8h5 Qh6 Qh8 Ng7 Qh7 Nce6 Bc5 B5b4 Bb6 Nc5 Ba5 Be2+
2k2Bn1/2pR2NK/q1nnpQ1b/B1P5/rr1p4/1q2QR1B/B1r3qN/5R1N b - - 0 1 illegal: No extended proof kernel
B3B3/1RbNNbK1/kQq5/B1r1R1n1/1pprR3/1N1pbr1q/2P3q1/3Q1N2 b - - 0 1 illegal: No possible last move
8/q2p1qR1/1n2Q3/k1KB1N2/2nPr1RN/BQ2p1Q1/2rpN3/brRq1Qn1 b - - 0 1 illegal: No proof kernel
1b1K1B2/R1rp1Q2/Brb1r1Q1/8/QB1P1bp1/1qRr2N1/2N2pkN/3rQ2n b - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 hxg4 a5 Qg5 a6 Nc6 b6 Nd8 b5 Nb7 axb7 Qd8 Kf2 Ke7 b8Q Kd6 e4 Ke5 h4 f5 h5 a5 d3 g5 h6 g3+ Kf3 g2 h7 a4 b7 a3 b6 g4+ Ke2 f3+ Ke3 a2 Qa4 f2 Ne2 g1R Bd2 Bd6 Na3 c5 Ng3 c4 Rh3 c3 Nc2 Nh6 Qc7 Ra6 b8N Rg2 b7 Qg8 Qcc4 Rb6 Qf7 Rh2 Qg6 Qb3 Qf7 Rg8 h8B+ Rg7 Be2 f1R Qg6 Rd1 Qf7 Bc7 d4+ Kd6 Kf4 Rg6 Ba6 Re6 Kg5 f4 e5+ Kd5 Bg7 f3 Nc6 f2 b8Q Nf5 Bf8 Bb7 Qd8 Bb8 Qde7 Rhh1 Be1 Rd3 Bd2 Rc1 Qg6 Rd6 e6 Rd1 Ne5 Bc6 Kf6 Rc1 Na3 c2 Bb4 Rcd1 Qeh7 c1B Nf3 Bf4 Nh2 Rc1 Kf7 Rcd1 e7 Re6 Ke8 Rc1 Nh5 Ng3 Kd8 Nh1 e8Q Rc2 Qhg8 Rcc3 Q6f7 Ke4 Ng3+ Ke3 Qgg6 Rc2 Nhf1+ Kf3 Nh2+ Kg2 Qee7 Rcc3 Nc2 Rc4 Qeg5 Rcc3 Qe5 Rc5 Qe1 Rcc3 Rb1 a1R Rb2 Rad1 Ra2 Bd5 Ra1 Rc7 Ra3 Qb2 Rc3 Qb3 Rh5 Bc6 Ra5 Rf6 Bb7 Rd6 Ra7 Re6 Ba6
1k2B2b/1pBR4/1Br1p3/2bNbQ1p/5RqP/N3Q3/2QB2rb/qn1bK1R1 b - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 a5 f4 d5 cxd5 Qd6 b4 axb4 g5 Nd7 f5 Ndf6 gxf6 Qd8 h4 Kd7 d4 h5 a4 c5 f7 Kc7 d6+ Kb8 f6 g5 d5 c4 d7 b3 a5 e3 a6 c3 d6 e2 Qd4 g4 Qe5 c2 Rh2 b2 Rh3 g3 Qe6 g2 Na3 b1Q Rd3 Rh6 Nh3 g1B Qe3 Bh2 Nf4 Qe8 d8B Bg4 Bh3 Qa4 d7 e6 Nd5 Rg6 Bf1 Bc5 f8R Ne7 f7 Bf3 Rd1 Qg4 Bd2 c1B Bg2 Bb2 Bb6+ Nc8 d8B Nd6 Bh1 Bbe5 Bg2 Ne4 a7+ Kc8 Bf1 Nc3 Bg2 Rb8 a8Q Qb2 Rac1 Nb1 Qa4 Qa1 Qc4 Ra8 Qc2 Kb8 Bf1 Bh1 Bg2 Ra6 Be4 Rg7 Bd3 Be4 Bb5 Bf3 Be8 Rg6 Rg8 Rg7 f8Q Rg5 Qff5 Rg7 Bba5 Rc6 Bab6 Rg6 Rf8 Rg8 Kf2 e1B+ Kf1 B1g3 Rf6 Bgf4 Ke1 Rg6 Rf8 Bh8 Rf7 Bfe5 Rd7 Nc3 Rb1 Be2 Rb4 Nb1 Rf4 Bf3 Kf2 Be2 Rg1 Bd1 Ke1 Qf3 Qeb3 Rg2 Qe3 Qg4 Bdc7+
k1B2b2/R1rprBpK/qnN4Q/1n4p1/6PR/1Q2Rq1n/Q4B2/3nnNR1 b - - 0 1 illegal: No proof kernel
B1R1r2n/2q5/3p1Bn1/q2PBNkN/bQbR4/2bp4/4NK1p/1bRB1b1Q b - - 0 1 illegal: No proof kernel
3bB3/p1kp2pN/4rnB1/qR1P1Q2/1Q1N1NbB/2q3bb/Q5B1/n3Rb1K b - - 0 1 legal: proof: f4 b5 g4 h5 b4 hxg4 f5 c5 f6 Na6 a3 Rb8 bxc5 b4 a4 Rb5 axb5 exf6 Ra3 f5 Ra1 f4 Kf2 f5 Kg2 g3 c4 b3 e4 b2 h4 Qe7 d4 Kd8 h5 Nb4 h6 Ba6 b6 Bc8 d5 Ba6 h7 Qe8 e5 Kc8 c6 Na2 b7+ Kb8 e6 Nh6 c5 Qd8 e7 Rg8 e8B Bd6 h8N Bc7 Qe2 Bd6 Nc3 b1Q Nh3 Qb2 Ng6 Qa5 Nf8 Kc7 Rb1 Nb4 Nh7 f3+ Kg1 f4 Bg2 Qba1 Qa2 Nc2 Rb5 Ng4 Ne2 Q1c3 Nd4 Na1 Bd2 Rf8 Be1 Rf6 Bf2 Re6 Be1 Kd8 Bf2 Nf6 b8Q+ Ke7 Qb7 Kd8 Qb6+ Kc8 c7 Be7 Qd6 Bd8 Qe5 Qcb4 Qf5 Qc3 Rb2 Be2 Rb5 Rb6 Be1 Kb7 c8B+ Kc7 Bf2 Re6 c6 Bd1 Ba6 Be2 Bf1 g2 Bh4 f2+ Kh2 f3 Nf4 Bd1 Bd3 Be2 Re1 g1B+ Kh1 f1B Be4 f2 Bg2 Kd6 c7 Bg4 c8Q Bh2 Qcc4 Bg3 Qb4+ Kc7 Be4 Bfh3 Bg2 f1B Rb7+ Kc8 Bd3 Bh5 Rb5 Kc7 Qg5 Bf3 Bdg6 Bfg4 Qf5
1b6/qpQ1p2p/6b1/1P1B2k1/1N2Q2N/B3qQ2/Q1KN1bR1/RnbRbrn1 b - - 0 1 illegal: No proof kernel
N1rk3Q/1RR1R3/7K/pq4p1/6q1/PnN5/R1qpqrb1/QQNBBq1n b - - 0 1 legal: proof: h4 e5 d4 exd4 b4 c5 bxc5 g6 h5 Bg7 h6 f5 g4 fxg4 hxg7 Qe7 Qd2 Qg5 Qd1 Qd8 Kd2 d5 f4 b5 e4 h5 c4 a5 e5 h4 a3 d3 Ke3 g3 f5 b4 Kf4 d2 e6 h3 e7 h2 Kg5 b3 f6 d4 c6 g2 c5 d3 c7 b2 c6 Nh6 Ne2 Nd7 Ra2 Nf5 Nbc3 Ba6 c8N b1Q c7 Qb5 Nb6 Nc5 c8R Nb3 Rc7 Rf8 g8Q Ng3+ Kh6 g1Q Qh8 Rc8 Na8 g5 Qc2 d1Q Qb1 Qc2 Bd2 Qdd4 Nc1 Bb7 Be2 Qg2 Bd1 Qe2 Be1 d2 Rg1 Nh1 Rg3 Kf7 e8R+ Qdd7 Re6 Bg2 Rb6 Ke8 f7+ Ke7 Rbb7 Kd8 Re3 Qdg4 Qa1 Nf2 Ree7 h1Q+ Kg7 Qhf1 Kh6 Re8 f8Q Nh1 Qfg7 Rf8 Qhh7 Rf2 Qe5 Qb2 Qhb1 Qc2 Qh8+
k2n1q1b/BqNQB3/R2BR3/nQ4K1/r4pp1/Qp4P1/R1rq2Nq/5r1B b - - 0 1 legal: proof: f4 a5 c4 g5 b4 d5 cxd5 axb4 h4 e5 h5 exf4 Ba3 Bf5 Bc1 Bg6 hxg6 Ke7 Rh6 Kd7 Rh1 Ke8 Kf2 Kd7 Kf3 Kc8 Kg4 b5 e4 Kb7 d4 c5 a4 f3 g7 h6 d6 c4 d5 f2 g3 f6 d7 b3 e5 b2 d6 c3 e6 b4 e7 b3 e8Q c2 a5 Ne7 g8Q Ra6 Nf3 Nec6 Be3 c1Q Ra2 Qc5 Nh4 Bg7 Qgf8 Ka8 Na3 b1Q Bg2 f1R Nb5 f5+ Kh5 Ra7 a6 f4 Qd5 Rc7 a7 g4 Qe6 Qc8 d8B Qbc1 d7 Qd2 Be7 Qb7 d8B Na5 Bd6 Nbc6 B8e7+ Nd8 Qd7 Ba1 Kg6 h5 Kg5 Qa3 Bf3 Rc2 Ng2 h4 Q5f5 h3 Rg1 Rf2 Re1 h2 Bb6 h1Q Re6 Qh2 Qd3 Qe4 Qe2 Rf1 Nc7+ Kb7 a8R Rg8+ Rg6 Bh8 Ra6 Kb8 Qeb5 Qb7 Qg7 Rf8 Qa1 Rf6 Bbc5 Re6 Qb2 Re4 Re6 Ra4 Bd4 Qab4 Qa3 Qc4 Re4 Qf7 Re6 Qe8 Ne1 Qf7 Bh1 Qf8 Ng2 Rc6 Ne8+ Rc7 Ba7+ Ka8 Qb6 Rc3 Qbb5 Rc2 Nc7+
R2nQ3/1Rp2Q2/BrP4n/qbrp2BK/2r1p2Q/Nq1N1R2/1Bk1q2R/7q b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 d4 e5 h4 gxh4 Kd2 Bg7 Ke2 fxe4 Ke1 e3 Ne2 e4 Ng1 Be5 dxe5 Qe7 Qd5 Qg5 Qd1 Qd8 f4 Kf7 b4 Ke6 c4 Kf5 g4+ Ke6 c5 h5 g5 Kf5 g6 a5 c6 d5 g7 a4 e6 e2 Kf2 e1R e7 h3 Kg3 h2 Kh4 a3 b6 a2 b5 Ra5 b7 Nh6 g8Q Nd7 b8B Ba6 b6 Nf8 b7 Bb5 Nh3 Ne6 Ba7 Qb8 e8Q Nd8 Bd4 Re3 Qd2 Rc3 Nf2 Rc4 Qg3 Rg8 Nd3 Rf8 Qdf2 Rg8 Rg1 h1Q+ Qgh2 Rf8 Bdb2 Qf3 Rh1 Qe2 Qhg3 Rg8 Qgf3 Rg2 Rh2 Ra6 Qe1 Rb6 Bd2 Qe3 Bdc1 Rgc2 Qeg3 Qe2 Qgf2 Qc8 b8R Qb7 Ra8 Qb8 Ra7 R2c3 Rb7 Kf6 f5 Rc5 Kg3 h4+ Kf4 h3 Qh4+ Kg7 Kg5 Rc4 Rf2 h2 Kh5 h1Q Bg5 Rc5 Rh2 Rc4 Qh8+ Kf7 f6 Ke6 f7 Rc5 f8R R3c4 Na3 Kd6 Rf4 Ke6 Qe8+ Kd6 Rd1 a1Q Nb1 Qa3 Rc1 Qba8 Rc3 Q8a5 Rg4 Qb3 Qff7 Qeg2 Rg3 Qe2+ Rf3 Ne6 Nf2 Ke5 Nd3+ Kd4 Qh7 Qba4 Qhf7 Nd8 Ra3+ Qc3 Bbc1 Qab3 Ra8 Qce1 Na3 Kc3 Nb1+ Kc2 Bb2 Q1d2 Qe5 Qee3 Rf6 Ba6 Nc1 Rd4 Rf3 Rdb4 Bc4 Qee2 Qee8 Ra4 Nd3 Qa5 Bb5 Rb4 Ba4 Bc4 Bb5 Ra4 Ba6 Bb5 Bd4 Rb4 Bb2 Rbc4 Na3+
2K3b1/5r2/3Q1p2/4q2b/1p1qR1nk/BP1Nbr1B/R1R3bp/1BNQ1NqN b - - 0 1 legal: proof: f4 b5 h4 g5 c4 gxh4 f5 d5 cxd5 Na6 f6 Nb4 Rh2 exf6 Rh3 f5 Rh1 f4 a3 Nc6 a4 b4 Qb3 Nd4 Qd1 Nb5 axb5 Bg7 Nf3 Bh6 Ng1 Bf8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 e4 c5 g4 h5 d4 a4 b3 a3 b6 h3 b7 h2 b8N c4 d6 c3 d5 c2 d7 a2 d6 f6+ Ke6 h4 e5 h3 Na6 Rh6 Ba3 c1Q Nc5 f3 Nd3 f2 Nd2 Ne7 Ne2 Bb7 Ng3 Qc6 Nc1 Kh4 g5 Qg2 g6 Ra7 g7 Rh7 g8B Qb6 d8N Nc6 d7 Bh6 Nf7 Be3 d8Q Qd4 Qd6 Qg1 Kd7 Ra5 e6 Rf5 e7 Ne5+ Kd8 Bg2 e8R Rf3 Kc8 Ng4 Ne5 Rf7 Ned3 Qe5 Bh7 Qd4 Rb1 a1Q Rb2 Qe5 Rc2 Qad4 Be2 f1B Ra2 Qa5 Re4 Qae5 Bf5 Qf2 Rg1 h1B Bg6 h2 Bh7 Bh3 Rg2 Qg1 Rf2 Bh1g2 Nh1 Rf4 Bf3 Be2 Nf1 Rf5 Nf4 Bc4 Rfc2 Bd5 Be2 Bf3 Bb5 Bhg2 Nfd3 Be2 Bd7 Rf3 Qc5 Rg7 Qd6 Bg8 Bg6 Rf7 Nf4 Nf2 Bh3 Ng4 Nfd3 Qb2 Rc7 Rf4 Rec4 Nf2 Nc5 Bh5 Bb1 Ng4 Re4 Rf3 N5d3 Qbd4 Rcc2
3Bq2R/kr3Bp1/2p1n1Q1/3qBRPr/5N1p/3b3n/2rn1RrQ/K2QN1R1 b - - 0 1 illegal: No proof kernel
1R2k2K/1R1p4/1Bnbqn1B/2p1qpQ1/2B2Q2/N3nP2/1R1r1Rb1/2Nb1Nb1 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 d4 exd4 a4 g5 h4 gxh4 b6 Nc6 b5 Ra7 b7 Nb8 Nc3 Ra6 Nb1 Rg6 b6 Rg5 Bf4 Rc5 Bc1 Rb5 axb5 a4 Kd2 h5 Kd3 c5 Ke4 f5+ Ke5 a3 e4 d3 g4 a2 f3 h3 g5 h4 g6 h2 g7 d2 Qa4 d1Q Bh6 h3 Na3 Qb3 Rb1 a1B+ Rb2 Rh7 Ne2 Qc2 Nc1 Qb1 Bc4 Qd3 Rf1 h1N Rf2 Ne7 Kf6 h2 g8Q Rh8 e5 Qe4 e6 Rh7 Qg5 Nbc6 b8B Ng3 b7 h1B b6 Nf1 Bc7 Bg2 b8R Ne3 b7 Ng8+ Kg6 Qe5 e7 Nf6 Qb4 Ned5 Qbd2 Qe6 Qdf4 Ne3 Bb6 Qc7 Ba5 Qce5 Bd8 Ned5 Ra8 Nc3 b8R Ncd5 Ra7 Ba6 Rab7 Ne3 Nc2 Neg4 Ne3 Bb5 Nf1 Ne3 Bg7 Rh2 Bh6 Nfg4+ Kh7 Nf6+ Kh8 Ba4 R2b3 Bd4 Rbb2 Kf7 e8N Bd1 Nc7 Bd6 Nb5 Ke8 Rfd2 Ned5 Rdc2 Bg1 Na3 Ne3 Rf2 Rh4 Qh2 Rd4 Qhf4 Rd2 Bb6+
N4Kb1/QN5r/qp2pR2/1rNrpR1q/1PQ3k1/3q4/Q1nBBB2/bNq5 b - - 0 1 illegal: No possible last move
1r6/K2Qn2q/3B2r1/NRBp3n/1p1pB3/2Q1nNQb/nPB2q1q/3RRk2 b - - 0 1 illegal: No possible last move, all moves rejected
3K1Q2/2pn4/q5p1/N2B1BkB/1N2rN1R/nqb3PQ/1Bp2Rnr/n2R2q1 b - - 0 1 illegal: No extended proof kernel
1R3NqB/1r2Qb2/K1Q1p2n/1p2R1Rp/b2b1B2/2Q1P2k/2n1Nq1n/1B2R2b b - - 0 1 legal: proof: c4 b5 g4 a5 h4 g5 f4 Bh6 h5 Bf8 b4 d5 cxd5 gxf4 g5 axb4 Rh4 Ra6 Rh1 Rg6 hxg6 Bd7 Qc2 Bg4 Qd1 Bc8 a4 Kd7 d4 c5 Kd2 h5 g7 f5 d6 Ke6 d7 f3 a5 f2 a6 f4 g6 Kf5 a7 Kg4 a8Q c4 d5 f3 d6 b3 Kc3 e6 Kb4 c3 Nd2 b2 Ne4 b1B Ng5 c2 Nh7 Qe8 Ka5 Nh6 d8B Bb7 g8R Na6 d7 Bg7 Bf4 c1Q Qb3 Nb4 Qc3 Bc2 Nf8 Qe1 Bf6 Ba4 d8Q Rh7 Qe7 Nc2 e3 Qf7 Bd3 f1N Rc1 f2 Ne2 Nh2 Rf1 Bd5 Qc6 Kh3 Ka6 Bh1 Rg1 f1B Rg5 Qf2 Re1 Bfg2 Re5 Be4 Rh8 Qe8 Rg8 Bh8 g7 Bg6 Be4 Bf7 Bd3 Nd4 Bb1 Nc2 Ng6 Qd7 Rb8 Qd8 g8R Qe8 Rg7 Qg8 Nf8 Be4 Qa5 Bh1 Rgg5 Rg7 Re4 Rh7 Bb2 Bd4 Qac3 Rg7 Ree5 Be8 Qea3 Rb7 Qe7 Bf7 Qb3 Na3 Rd5 Ba7 Bh8 Bd4 Qbc3 Nc2 Rde5
b2kQR2/3n2Q1/7p/2RpBn2/qpr1BNq1/1nrqQ3/Q2P2q1/N1RNK3 b - - 0 1 illegal: No possible last move, all moves rejected
1nbQ2R1/Kp1nNq2/2NpQ1N1/4RBQ1/1Pq3p1/bB1B1r2/7B/qb3bk1 b - - 0 1 illegal: No proof kernel
K1NB2rQ/bQ4r1/qpNp1n2/1RrN1R1R/4Q1p1/bP1r4/B5k1/1qR2b2 b - - 0 1 legal: proof: e4 c5 a4 f5 g4 h5 a5 hxg4 a6 Nc6 exf5 b6 d3 Na5 d4 Nb7 axb7 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 g5 b8Q e5 c4 d3 h4 e4 f4 d2 h5 d6 Kc6 e3 h6 g3 h7 g2 c5 e2 Nf3 g1R Rh5 e1B Nd4 a4 Qc2 d1R Qb7 a3 Qe4 a2 Nc3 Be7 Bc4 Rd3 Bd2 g4 Rc1 a1Q Ba2 Qb1 b3 Ra7 Be3 Qf8 Bf2 Qg7 Bh4+ Qg5 Kc7 Bd8+ Kb8 Be6 c6 Bc4 c7 Bd2 Nd1 Bb4 c8N Ba3 Ne3 Rg2 Nc6 Rc2 Qa6 Rg7 Ka8 Bc7 Nd5+ Kf7 f6 Bb8 f5 Ba7 Qf3 Qd2 Qe4 Qe2 Bg5 Bb5 Bh4 Rc5 Qb7+ Kf8 f7 Nf6 Bg5 Rhg8 h8R Rh7 Bh4 Kg7 Rg5+ Kh6 f8R Qd2 Rf7 Qa5 Rf8 Qa6 Rf7 Nd7 f6 Bc4 Rf8 Bb5 f7 Nf6 Rf5 Bc4 Bg5+ Kh5 Re8 Bb5 f8Q Bc4 Ree5 Bb5 Be3+ Kh4 Bg5+ Kg3 Qe8 Rhg7 Rh5 Nh7 Bd8 Nf6 Qd4 Kg2 Qg6 Rd2 Qh6 Bf1 Qh8 Rd3 Qe4+ Kg3 Ndb4 Rc2 Rb5 Rc5 Rf3+ Kg2 Nd5 Re3 Rff5+ Rf3 Qe1 Rd3 Qe4+
rq2qB2/3pN3/p1B2n1b/QNknR1Q1/4RR2/KQ2qqn1/P1Rp3N/1r6 b - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 h3 exd4 Nc3 g5 Ba3 g3 Nf3 g4 Rc1 g2 Ng1 b6 Ra1 g3 Nb1 Bb7 Bb2 Bf3 Bc1 Bg4 hxg4 Be7 Kd2 Bd6 Ke1 Bf8 Kd2 Ke7 f4 h5 c4 d3 Kc3 h4 Kb3 h3 e4 a6 f5 b5 c6 Kd6 c7 b4 c8Q h2 f6 d2 e5+ Ke6 c5 Kd5 e6 Ne7 c6 Qb6 f7 Ng6 c7 Qd6 e7 Nh4 e8R Kc6 g5 Bh6 f8R Nf5 g6 Bg7 Nf3 g1Q Na3 g2 Nb5 Ng3 Qd8 Rh7 Bc4 Qe1 c8N g1Q Qa5 Qgc5 Rf1 h1Q Ba3 Qcg1 Ka4 b3 Rb1 b2 Qb3 Rh2 Re6 Bh6 g7 Qhg2 g8Q Rh1 Re7 Qee2 Nh2 Qgf3 Qg5 Qb6 Rbd1 b1N Rfe1 Qbf2 Bc5 Nc3+ Ka3 Nce4 Rf4 Nf6 Rb1 Qee5 Ree4 Q2e3 Rb2 Rb1 Re8 Qf8 Re7 Qe8 Bf7 Qc7 R7e5 Qb7 Bf8 Qbb6 Bg7 Qbd8 Bd5+ Kc5 Ne7 Nc6 Bf8 Nb4 Bb7+ Nbd5 Bc6 Qb8 Rc2+
3R1q2/p3pqQr/1BN2bQN/1R5B/K3n1n1/3bR1p1/3NP2N/3knqqB b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Rh2 Na6 Rh1 Rb8 Nf3 Rb6 Ng1 Rg6 Nc3 fxg4 Nb1 g3 Ra5 g4 Ra1 Rg5 hxg5 Bh6 Rh4 Bg7 Rh1 Bf8 Kd2 Kf7 b4 Ke6 f4 Kd5 c4+ Ke4 Kc2 d5 Kb3 h5 b6 g2 b5 h4 c5 d3 c6 h3 g6 d4 f5 h2 f6 d2 c7 Ke3 b7 g3 b8R d3 g7 Bg4 c8B Bh3 f7 Qd5+ Ka4 Qf5 b6 Nf6 g8N Ne4 b7 Nb4 Nf3 g1Q Qc2 Bg7 f8Q Rh7 Bg2 Qf7 Ra3 Bf5 Nh6 Bf6 Qg7 Qf1 Rg1 h1N Nh2 Nhf2 Bh1 Ng4 Rb3 Qf3 Rd1 Kf2 Qc6 Nc2 Ba3 Ne1 Bc5+ Ne3 Rb5 Qf8 Rc1 d1Q+ Rc2 d2 Bb6 Qc1 Rc3 d1Q+ Rcb3 Qd5 Nd2 Qdf7 Be6 Qc5 Rd8 Ng4 b8N Qg2 Rc3 Qf1 Re3 Nd6 Qd5 Bd3 Bf5 Nf3 Bg6 Ke1 Qh5 Ne4 Nc6 Kd1 Qf5 Q8g8 Bh5 Qgf8 Qfg6 Ne1 Rf3 Qcg1 Re3
n1N3bQ/NK3n2/r6r/1B2R2p/7P/NprNBk1p/R3BrR1/r3q1rQ b - - 0 1 illegal: No proof kernel
q1rQ2BQ/1p4RN/1Pbn1n1R/1B2N2N/2nn2k1/B1Kp1n2/pnNR1r2/8 b - - 0 1 illegal: No proof kernel
k2nn2q/2N1p3/2B1Q1R1/nr1BPn1p/2R2pn1/rNb1B1Q1/n5R1/1NR2K2 b - - 0 1 illegal: No possible last move
R1Rn1B1r/3K2N1/N2B1rpp/2RR1Q2/p1b5/7Q/1nB1r1Pn/kn1nb2N b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 g6 h6 Qc7 Bd2 Qe5 Bc1 Qg7 hxg7 Ba6 Ra2 Bb7 Ra1 Bc8 Kf2 Ke7 Kf3 Kf6 Ke4 a5 Kd5 a4 c4 f3 e4 f2 b4 d3 b6 d2 e5+ Kf5 b5 d6 b7 h6 e6 f6 c5 Na6 Kc6 Ke4 b8Q Kd4 e7 d5 e8N f5 b6 f4 b7 f3 Nc3 Nc7 Bd3 f1N Nh3 f2 Bc2 Nf6 g8R Ne6 Qg4+ Ne4 Qf5 d1N Qh2 Nb2 b8B Ned2 Ng7 Nb1 Ne4 Ba6 Bd6 Re8 Kd7 Nd8 c6 Bc4 Nc5 Kc3 c7 d4 c8R d3 Na6 Re2 Be3 d2 Bec5 d1N Ra3+ Kd2 Rd3+ Kc1 Rd5 Be7 Qg3 Nh2 Qgf3 f1R Nf2 Bh4 Q3h3 Bg3 Rg1 Bh4 Nh1 Be1 Bf8 Rf3 Bcd6 Rf4 Qe6 Rf6 Qef5 Nd3 Rcc5 Kb2 Rf1 Ka2 Rf3 N3b2 Rc3 Ka1 Rc8 Bb3 R3c5 Bc4 Bfe7 Bc3 Re8 Ba5 Bf8 Be1 Ra8 Ne6 Reb8 Nd8 Rbc8
2Q3b1/2bpk1p1/NQ2r2R/2nrr1B1/6NB/3RnB2/B2Pp2K/r1r2RQn b - - 0 1 legal: proof: e4 f5 exf5 a5 c4 h5 b4 b5 g4 hxg4 Bh3 c6 Bg2 Qb6 Bh3 axb4 Bf1 b3 Bd3 b4 Bf1 Qb5 cxb5 Rh3 Bc4 Rh7 Bf1 Rh8 f4 e5 Kf2 g3+ Kg2 c5 h4 e4 a4 b2 f6 b3 a5 e3 b6 c4 f5 c3 a6 c2 h5 Ba3 f7+ Kd8 f8R+ Ke7 h6 Rh7 b7 Bb4 a7 Ba5 f6+ Kd6 f7 Na6 b8Q+ Bc7 Qb6+ Ke7 Nf3 Nf6 Nh2 Rh8 h7 Nd5 Ra3 Bb7 Ng4 Nc5 Rh6 Re8 Nc3 b1R a8B b2 Bc4 e2 Qg1 Ra1 Ne4 b1R Ba2 Rb5 Bb2 c1R Rd3 Ne3+ Kh3 Rg8 h8Q g2 Be5 Bd5 Kh2 Be6 Bg3 Ra5 Nd6 Rb5 Bf3 Ra5 Nb7 Bb3 Qd1 g1N Bf4 Nh3 Qg1 Nf2 Bg3 Ne6 Nc5 Nh1 Na6 Rg5 Bf4 Nc5 Bg3 Rc4 Bf4 Re4 Bg3 Ree5 Bh4 Rc8 Rd8 Re8 f8B+ Kf7 Bd6 R8e6 Be7 Rh5 Bg5 Bc4 Nf6 Ke7 Rf8 Rd5+ Bf4 Rhe5 Ng4+ Rg5 Rff6 Rge5 Bfg5 Rb8 Qc6 Rbb1 Qb6 Rf1 Qc8 Rfc1 Rc3 Bd3 Rb3 Bh7 Rd3 Bg8 Bg2 Bd8 Rf1+ Ke8 Rhf6 Ke7 Bf3 Bc7 Rh6+
q2b4/1n2Q3/NkRpR3/1Bb1rB2/1np3Q1/N1B3K1/n1P2QRp/R2bn2b b - - 0 1 legal: proof: g4 e5 h4 f5 d4 exd4 a4 b5 axb5 fxg4 Bg2 a5 Bf3 g5 Bb7 g3 Bg2 g4 Bf1 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bc5 Ra4 Be7 Ra1 Bf8 f4 c5 b4 h5 e4 g2 Kf2 h4 f5 h3 e5 a4 e6 d6 e7 Kd7 e8R Kc7 b6+ Kb7 f6 a3 b5 h2 f7 a2 g6 d3 g7 d2 Na3 Ne7 g8B Rh5 Bh7 Nec6 Bb2 Na5 Nh3 g1N Ng5 Be7 f8Q Nf3 Kg3 Nbc6 Bf5 Nb4 Ne6 Ne1 Nc7 Bf6 Qe2 d1B Na6 Bd7 Qf7 Qa8 Rg1 Bd8 Re6 Rg5 Qe8 Bc6 Qf2 Bh1 Rg2 Rh5 Bc3 Rg5 Rc1 a1N Bc4 N1b3 Ra1 Nc1 Qh5 Kc8 b7+ Kd7 b8R Nca2 b6 Kc6 b7 Kb6 Qf7 Rh5 Rc8 Rg5 b8Q+ Nb7 Kf4 g3 Bb5 Rh5 Qe7 Rg5 Qe2 c4 Rc5 Rh5 Qc8 Rg5 Qf2 Rh5 Rg1 g2 Kg3 Rg5+ Bg4 Re5 Bf5 Bc7 Qg8 Bd8 Qg4 Ned3 Re1 g1B Re2 Ne1 Rc6+ Ka5 Qff3 Ba7 Rg2 Bc5 Rc8 Kb6 Qf2 Qb8 Rc7 Qa8 Rc6+
1R2Br2/2bN2r1/8/pNB3R1/br6/P1BkpNqB/1b3pQr/1Qn2KbR b - - 0 1 legal: proof: f4 c5 g4 h5 e4 hxg4 b4 d5 bxc5 e5 Be2 Nc6 Bc4 dxe4 Bf1 e3 Na3 e4 Nb1 Ne5 fxe5 Qg5 Nc3 Qe7 Nb1 Qd8 d4 Ke7 h4 Ke6 c4 Kf5 h5 b5 h6 a5 a3 g5 d5 g3 e6 e2 h7 b4 e7 g4 e8N g2 d6 b3 c6 g3 c7 b2 c5 Bd7 c8Q Qc7 c6 Bg7 Rh2 Nh6 Qb7 Ng4 Qd2 Nf2 Nf3 g1B Qc2 g2 Nc3 b1R Nf6 Raf8 Nb5 Rb4 Be3 Be8 d7 Qg3 d8R Nd3+ Kd2 e1R c7 Nc1 Rh1 Bh2 Qb1 g1B Nd7 Bb2 c8B Re2+ Kd1 Rhg8 h8B Rg7 Bc5 Kf4 Bh3 f5 Qc6 e3 Qa8 Rf2 Ke1 Rg2+ Kf1 Rc2 Qa7 Ke4 Qa8+ Kd3 Bb7 f4 Bc6 Bf7 Re8 Bb3 Re5 Ba4 Rg5 Re7 Bc3 Rg7 Qa2 Re2 Rb1 Rc2 Bd5 Rg2 Bf7 Re2 Be8 Rg2 Nfd4 f3 Qb3 f2 Nf3 Qh4 Qb7 Bc7 Qg8 Qg3 Qb3 Rh4 Qb4 Rh2 Qg4 Qf4 Qg2 Qg3 Qb8 Rb4 Qb6 Ba1 Rb3 Bb2 Qg6+ Kc4 Qb1 Qd6 Nfd4 Qg3 Na7 Rb7 Nf3 Rb8 Rb6 Rb7 Rc6 Rb4 Rb6 Rg6 Nb5 Rg7 Qa1 Kd3 Rb8 Kc2 Qa2 Kd3 Qb1+
6RN/1p5n/1P3k2/pb2b3/1B1rnn2/KR3b1Q/1p1bBnQN/Q2RBQr1 b - - 0 1 illegal: No proof kernel
1KQ4B/1nr5/Nb1prbp1/Q4bQ1/p3r2r/1R1n1B1N/P5bQ/2kB1NR1 b - - 0 1 legal: proof: h4 e5 d4 exd4 b4 c5 bxc5 g6 h5 Qe7 h6 f5 g4 Qg7 hxg7 fxg4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 c4 a5 Kb6 h5 Kc7 b5 f4 h4 c6 h3 f5 d6 c5 a4 f6 g3 f7 h2 Nd2+ Ke3 Nh3 d3 Qe1 g2 Rg1 h1B Bb2 b4 Rb1 Nf6 g8Q b3 Qh7 Be7 f8Q Nh5 Qf5 Bf6 Qg5+ Nf4 Ba1 b2 Qhh6 Kd4 e4 Kc3 e5 Kc2 e6 Nd7 e7 Rb8 e8N Rb4 Qhh5 Re4 Be2 Rh6 Nf1 d2 Qeh4 d1R Bf3 Nd3 Qe1 Re6 Qa5 Rde1 Qhh4 R1e5 Qhg3 Re4 Qh2 Nf8 Kb8 Rhh4 c7 Bd7 Re1 b1R+ Bb2 Bc8 c6 Rc1 Re3 Kb1 Bd1 Rc2 Ba1 Kc1 Bf3 Bd7 c8B Rcc4 Bb7 Bc8 c7 Nd7+ Ka7 Rc2 Bd1 N7c5 Kb8 Rc3 Bc6 Nb7 Bd5 Bd7 c8Q Rc7 Bd4 R6e5 Ba1 Bf5 Bc3 Re6 Bc6 Rce7 Nc7 Rd7 Na6 Rc7 Nd2 Rb4 Bcf3 Rbe4 Rge1 g1B Nf1 Bg2 Be5 Nf4 Rb3 Bb6 Bc3 Bd8 Bh8 Bf6 Nd2 Nd3 Rg1 Rec4 Nf1+ Rcf4 Qh5 Rfe4 Qg5+
bK1QBn2/1NB5/R2Bp1Q1/Q4R1r/R1n1p1pb/3N3r/R1pr1k1P/5n1q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 g5 f4 a5 d4+ Kb4 d6 c5 d5 a4 f5 a3 b6 e6 d7 a2 b7 c4 d6 Kc5 b4+ Kb5 f6 g3 f7 g2 Na3+ Kb6 b5 Kc5 b6 c3 Ne2 g1N Nc4 c2 Nf4 Ne2 Na5 Nd4 Bb5 Nf5 Qg4 Be7 f8R Ne3 Rf5 Rh3 Bd2 Qf8 d8Q Nh6 Be8 Nf1 d7 Qf7 Qh5 g4 Qg6 Bh4 Qdg5 Qf8 d8Q Bd7 Be1 Bc6 Bg3 Qf7 Rg1 Qd7 Q5h5 Qd1 Qhg5 Qf3 Q5h5 Qh1 Qhg5 Kb4 Kd6 Kc3 Kc7 Nd7 b8B Kd4 b7 Ke3 Kc8 Ra7 Bd6 Nf8 b8R Ba8 Rb4 Rd7 Nb7 Nf7 Ra4 Ne5 Kb8 Nc4 Qa5 Rh7 Qgd8 Rh5 Bc7 Nfd2 Rgb1 Nf1 Rb6 Kf3 Ra6 Ke3 Rb1 a1R Rb2 Rd1 Rba2 Rd2 Nd5+ Ke2 Bgd6 Ke1 Nf4 Kf2 Nd3+
2Qb1r2/1bR1N1nK/1n1np2p/RR3BB1/P2pp1R1/4QN2/Bq1Qr3/3b1k2 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 g4 Kf7 Kd2 Ke6 Ke3 Ke5 f4+ Ke6 c4 b5 g6 d5 g7 h6 c6 b3 g5 Kf5 g6 b2 c7 b4 c5 b3 c6 Nf6 g8B Ra6 g7 Rb6 Bd3 Nbd7 Nc3 b1N Nf3 Kg4 Rh5 Bb7 c8R Kg3 c7 Kg2 a4 Nd2 Rb1 b2 Qb3 Ne8 f5 Nc4+ Kf4 Kf2 f6 Rc6 Kf5 Ndb6 Kg6 Rc5 Bc2 Kf1 f7 Qd7 Rg5 Qb5 Rg4 Qb4 Ra8 Rb5 c8R Ncd6 Ra5 Rc5 Qa3 Rc4 Rcc5 Rd4 Rcb5 Rd2 Bd3+ Re2 Bg5+ Kf2 Rd1 Qb3 Rd2 Kf1 Rc2 Qa2 Qc5 Qb3 Qe3 b1B Bh7 d4 g8Q Nbc4 Nd5 Bg7 f8Q Nb6 Qgf7 Qb4 Rc7 Bf6 Bc4 Ng7 Qc8 Bc2 Qfe6 Rg8 Qd2 Qb2 Ba2 Nf7 Qd6 e6 Q6f4 Nd6 Qfe3 Bd8 Ne7 Bd1 Kf6 Ndc4 Bf5 Nd6 Kg6 Rf8 Kh7
1B2n2k/7R/r2pRp2/N1Qq2N1/Qn1PpK1b/p1Bb1n2/3Q1R2/b1NN1r2 b - - 0 1 illegal: No proof kernel
Q2r2R1/nnrrQNqb/N1pN2B1/1p1B4/P2p3p/3K4/2N3bb/Q1B3kR b - - 0 1 illegal: No possible last move
2k2R1K/b2b2Q1/pr1pnNB1/2BPbq1R/2p2QQB/R1rn1Q1p/8/3Nn3 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 Na6 h4 gxh4 a3 Nb4 Ke2 Nc2 Nh3 Nxa3 Ng1 Nc2 Kf3 e5 Ke4 h5 g4 c5 f4 c4 d4 h3 b4 h2 d5 a6 g5 h4 f6 Ne3 f7+ Ke7 g6 Ng2 Kf5 e4 g7 e3 Kg6 e2 b6 e1B b5 Ra7 b7 Rh5 b8B Qa5 f5 Kd8 f6 Bb7 b6 Ne3 Nd2 Ng2 Qf3 Bf2 Bd6 Qa3 Ne4 Kc8 Bd3 Ne1 Bg5 Bc6 Bc5 Nh6 Kh7 Bd6 Ne2 Be5 Kh8 Rb7 N2c3 d6 f8Q+ Be8 g8Q Nf5+ Qh7 Bg1 Nd1 Ng7 f7 Ne6+ Nf6 Qb3 Ra2 Qb1 Bg6 Qf5 Ra3 Rb8 Qfh6 Bd7 Q7g7 Bgd4 Be3 Rg5 Bf2 Rg3 Qhf4 Rb7 Q3g4 Rc3 f8R+ Nd8 Rf1 h3 Bh4 h1N Rg1 Nf2 Rg2 Rb8 b7+ Kc7 Qgf3 Ne6 Rg5 Nfd3 Rh5 Bg1 Bb4 Ba7 Bc5 Ra8 Be8 Rc8 b8Q+ Kd8 Qb1 Rb8 Bg6+ Kc7 Qb2 Rb6 Qbg2 Kb7 Qgg4 Kc7 Rf7 Kc8 Rf8+
1BbKnk1b/1B6/p1bp4/1p3Q1q/2QQRR2/1pN2Q2/P2nB1r1/R1r2Nr1 b - - 0 1 illegal: No possible last move, all moves rejected
n1q5/1QQ2b1P/B2p4/RpBprQ1r/1nbBN3/b3N3/2R3p1/Bk3NKn b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 h5 b4 axb4 g4 c6 d5 cxd5 gxh5 Ra7 Bh6 Ra4 Bc1 Ra8 h4 Kf7 f4 Kf6 Kf2 e5 a4 g5 c4 b3 c5 g4 h6 b2 h5 b6 a5 e4 c6 Ra6 h7 Nh6 c7 Rg8 h8B+ Bg7 Nd2 b1B Ne2 e3+ Kg1 g3 Qc2 g2 Nc3 e2 Nd1 e1N Ne3 Ng4 h6 Qf8 h7 Nd3 Ra2 Ra7 a6 Ngf2 Ra5 Ba2 Qc4 Rb7 a7 Na6 a8Q Ndb4 Qc5 Ra7 Qb7 Bc4 Bd3 Qe8 Ndf1 Rf8 Rh3 Nh1 Rf3 Rf7 Rf2 Re7 Rc2 Re5 Bb2 b5 Bd4 Ra8 Be2 Qe6 Bg4 Rb8 Qa8 Rb6 Qb7 Kf7 f6 Kg6 f7 Bf8 f5+ Kg5 f6 Kf4 Kh2 Ke4 Kg1 Kd3 Qcc6 Bc5 f8B Rh5 f7 Qf5 Qg6 Re6 Qg7 Re5 Be7 Qe6 f8N Qf5 Ne6 Qf8 Ng5 d6 Bf6 Be6 c8Q Qd8 Qgc7 Bf7 Ne4 Qg8 Qf5 Qc8 Qe7 Nc7 Bhg7 Na8 Qec7 Na2 Bh3 Bb4 Bc5 Ba3 Bh8 Nb4 Bhg7 Re7 Ba1 Re8 Bgc3 Re5 B3d4 Qg8 Qa7 Rg5 Rc3+ Ke2 Qg6 Rh5 Bc8 Ke1 Ba6 Qc8 Qf5 Ke2 Nc2 Kd1 Qab7 Kc1 Nce3+ Kb1 Rc2
1rN2r2/KB1b1NP1/1p3n2/p2Q2Np/1kb2q2/b2nB3/QR4pB/R1n1R1N1 b - - 0 1 illegal: No proof kernel
6Qk/5p2/R1R1Nr1B/nB3b1n/Knq2N2/R3bpQb/ppB2P1r/2QB4 b - - 0 1 illegal: No proof kernel
1R2n1rn/2p2Bp1/2k1bR2/rnP2BQ1/8/1N1KR1pp/1b2QRbN/1QB4q b - - 0 1 legal: proof: g4 e5 h4 Qxh4 d4 b5 dxe5 f5 a4 fxg4 axb5 Qh2 Kd2 a5 e4 d5 c4 Kd7 b4 h5 e6+ Kd6 e5+ Ke7 c5 h4 b6 h3 b5 g3 b7 d4 b6 a4 Ra3 d3 Qh5 Qg2 Nf3 Qg1 Rh2 Qh1 Qg5+ Ke8 e7 Kd7 e6+ Kc6 e8Q+ Nd7 b8R Ra5 b7 Nf6 e7 Rg8 Kc3 d2 Kd3 d1B Nbd2 Bb3 Be2 Be6 Nb3 Bd5 Rg2 Be6 Nh2 Bd5 Qeh5 Ne8 f4 Be6 f5 Ne5+ Kc3 Ng6 f6 Nh8 f7 Bd5 Kd3 Bce6 Bg4 Bf3 Rf2 Bg2 Ra1 a3 Bf5 a2 Qe2 Ng6 Rb1 a1N Rb2 Nc2 Rf3 Nh8 Re3 Nd4 Ra2 Nf6 e8B+ Bd7 Rd2 Bd6 f8R Be5 Beg6 Ne8 Rf6+ Be6 Bf7 Nc2 Qeh5 Bc3 Rf2 Na3 Qe2 Bb2 Rc8 Ra8 b8Q Ra5 Qb4 Nb5 Rb8 Ba1 Qbe1 Bb2 Q1d1 Nd4 Qdc2 Nb5 Qb1
2K2R1N/bpnn3B/R1B1k2B/2ppn3/7Q/P1Q4N/qQp2rb1/r1r1R2R b - - 0 1 illegal: No proof kernel
1b1n3N/pRknQ1Q1/p2p3n/3b3b/2r1RB2/4R2r/K1P2Bpq/R2B1NN1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Rh6 d4 cxd4 a4 Rh7 a5 Rh8 a6 bxa6 Kd2 e5 f4 g5 b4 e4 h4 g4 f6 g3 f5 d3 Kc3 d2 Kb2 g2 b5 e3 f7+ Ke7 h6 Kd6 f6 e2 h7 e1N h5 Bb7 b6 Nh6 Rh4 Rg8 h8Q Rg7 Qe2 d1B Bf4+ Kc6 Qe7 Ng4 h6 Qe8 h7 Nf3 Nd2 Nd4 Ka2 Nh6 Be2 Ne6 Nf1 Rg3 Qg7 Nd8 h8N Rc3 Bg4 Rc4 Rh3 Be2 Re3 Bf3 Bh5 Bd5 Bd1 Bf3 Qe6+ Bd6 f8R Qh5 f7 Qh2 Qe7 Bh5 Re8 Bc7 f8B d6 Bg3 Nd7 Bf2 Rb8 Re4 Ba8 b7 Rc8 b8R Rc3 Rh4 Rh3 Rb7 Bb8 Re4 Rc7 Qg4 Rc8 Bg7 Rc7 Be5 Rc8 Bf4 Rc7 Rb3 Rc8 Rbe3 Kc7 Qgg7 Bc6 Rf8 Bb7 Rf7 Bd5+ Kb1 Kb6 Kb2 Rc4 Ka2 Kc7 Rf5 Ba8 Rb5 Bd5 Rb7+
1R6/qqB1RK1k/1N1Q3b/1pRpp2p/B3r1N1/6r1/Pb1nb1BB/1nQN4 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Ke2 Kf7 Ke3 Kg7 Kd4 b5 Kd5 e5 f4 b3 c4 b2 g4 e3 g6 e2 f5 e1B c6 h6 g5 d6 c7 Bd2 c5 Bd7 c8N Be8 Ke6 Ba5 c6 Ne7 f6+ Kg8 f7+ Kg7 c7 Bb6 Nh3 Nd5 Bg2 Ra6 Nf2 Nf6 Nc3 b1Q Bf4 Ne4 Bh2 Ra3 Ng4 Bd4 Nb6 Na6 c8Q Nd2 Qc5 Ra4 Qc1 Rg8 Nd1 Qa8 Qc7 Kh8 g7+ Kh7 Q7c5 Bb2 Qa3 Rh8 g8R Qa7 Rf1 Bg7 f8B Qe4 Rf7 Nb4 Re7 Nc2 Qb4 Bd7+ Kf7 h5 Qd4 Bh6 Rb1 Ba3 Rb4 Qea8 Rc4 Q8b7 Rc5 Bb2 Ngf2 Ra5 Re6 Qaa6 Be7 Na3 Bd8 Qaa8 Bc7 Qaa7 Re7 Nab1 Rb8 Rg8 Qd5 Bg4 g6+ Kh8 g7+ Kh7 Qe6 Be2 Qf6 Ra4 Qe6 Rd8 Ng4 Re4 g8B+ Kh8 Kg6 Rf8 Qd7 Rf3 Qd8 Rg3 Bb3+ Bf8 Kf7 d5 Ba4 Kh7 Qd7 Bh6 Qd6
2n2Nq1/1BR3N1/nB1P3k/2Qb1r2/Kp2p1B1/br3prq/Q1p1B3/2QN3R b - - 0 1 illegal: No proof kernel
2Q2q1r/R2B1n1R/2Qp2nr/bk2pK2/N5Q1/pBbP4/4qR1p/2BN1Rb1 b - - 0 1 illegal: No possible last move, all moves rejected
3BqrR1/1r1B1Q2/3pN1Kp/q1nP4/2NN3p/RQ1r1p1n/b5Qk/4RQ1b b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 Kh5 f5 e4 c5 g4 a5 d4+ Ke6 g5 h6 b7 a4 g6 a3 g7 f3 b6 a2 e5 d6 b5 c4 Nh3 f2 Na3 c3 Nc4 c2 Kg6 Nd7 b8R f4 b7 f3 b6 Ra3 Bg5 c1R Bg2 Re3 Re1 f1B Be7 Rd3 Ng5+ Kd5 e6 Rb1 Bh3 Ngf6 g8Q Ne4 Bf5 Qf8 Bd8 Ndc5 e7+ Be6 e8Q Bg2 Qef7 Bh1 Qe2 Nf2 Qf1 Qe8 Rc8 Nd1 b8N Nf2 b7 Nh3 Nc6 Rb4 b8Q Rb7 Qg7 Rf8 Qg8 Rd7 Qb3 Rb7 Rac1 a1Q Rb1 Qa4 Ra1 Qb5 Ra3 Qa5 Qg7 Qe7 Qe8 Bg8 Bd7 Qe3 Ne6 Ke4 Qef7 Qe2 Ne7 Qe3 Nf5 Qe2 Nc7 Kf4 Ne6+ Kg4 Nfe3+ Kg3 Nc2 Kh2 d5 Bh7+ Kh5 Qe3 Ncd4 Qe2 Nc7 Qe8 Nce6 Rc3 Ra8 Bb1 Qg8 Ba2 Kg6 Rd3 Bb6 Qe7 Kf5 Qd8 Qg4 Rh8 Kg6 Qe7 Rf8 Qe8 Bd8 Qc7 Rg8 Qb6 Rg7 Rf8 Rg8 Qa5 Qgg2+
nQ1b4/kb1B1Rn1/rqP3pB/5p2/N2qBK2/rbN2Bp1/1Qp3R1/N1Q5 b - - 0 1 illegal: No proof kernel
r1Q2N1R/2N3n1/2pR1q1b/4Qr1B/BN1qBpp1/p5Q1/b1rBPn2/2k2K2 b - - 0 1 illegal: No proof kernel
4N3/6n1/npQbNb2/B1RqRpp1/Q3NP2/rNpB1Kbk/3q2r1/4RB2 b - - 0 1 legal: proof: c4 h5 e4 d5 exd5 b6 g4 hxg4 d4 Bf5 d6 Kd7 c5 Ke6 d5+ Kf6 b4 a5 c6 Bd7 cxd7 axb4 Ke2 Kf5 f4 e5 a4 g5 h4 c5 a5 c4 h5 e4 a6 g3 a7 Kg4 h6 f5 h7 b3 Nh3 e3 Bd2 b2 Ba5 g2 Nd2 g1B Nb3 b1Q Nf2+ Kg3 Ne4+ Kg4 Rh2 Qe7 d8R c3 d7 Qc5 d6 Qb4 Rc8 Qa4 d8N Qc6 d7 Qc1 Ne6 Qd5 d8Q Bd6 Qe8 Na6 Rc5 Nf6 Qc6 Nh5 Rb1 Rhd8 h8N Ng7 Nf7 Re8 Rg2+ Kh3 Kf3 e2 Qc2 Qb2 Re1 Bd4 Qd1 Rh8 Qa1 Bf6 Qaa4 Bf8 Nd6 Qbd2 Ne8 Bd6 Rb1 e1B Re2+ Kh4 Re3 Bg3 Rbe1 Rh5 Bd3 Kh3 R3e2 Rh4 Re3 Rg4 R3e2 Rc8 a8B Rc7 Re3 Ra7 R3e2 Bh4 Bb7 Rg2 Bc8 Bg3 Bb7 Nb4 Bba6 Ra8 Bac4 Na6 Re3 Ra7 Bf1 Ra8 Bcd3 Kh2 Qa1 Bd4 Bb4 Nc7 Qa2 Ra4 Ba5 Na6 Qa1 Bf6 R3e2 Qd4 Nf2 Qc4 Ree5 Qd5+ Ne4 Kh3 Qb2 Ra2 Qa3 Ra1 Qb4 Ra3 Qba4
2r2QKR/1bb3P1/q3N1N1/1Rq2Bn1/3Bp1Rr/3q1n1p/1p2B1pQ/R1N1k3 b - - 0 1 illegal: No proof kernel
2N1r2R/6p1/Nk1N2pQ/2p3n1/b1K1BN2/3n1q1n/1BPQ1pRq/1Q1R1b1r b - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 Bb7 g5 Bc8 f4 Be7 e4 Bd6 e5 Nc6 g6 hxg6 e6 Be5 fxe5 Nb8 Ke2 d5 Kd3 a5 b4 f5 h4 c5 b6 a4 h5 f4 e7 Kd7 e8R Kc6 e6 f3 b7 a3 e7 a2 h6 Nf6 b5+ Kb6 h7 Qd6 Rh5 Ne4 Rh2 Ng5 Qd2 Na6 b8N Bd7 Rg2 Qh2 Na3 Bc6 Rb1 a1Q Ne2 Qb2 Nf4 Qb3+ Qc3 Bd7 Bb2 Bc6 Rd1 Nb4+ Kd2 d3 Na6 d4 Nc4+ Ka7 Rg8 Re8 b6+ Kb7 Be2 Ba4 Nd6+ Kc6 b7 Kb6 Rf8 Qd5 b8Q+ Qb7 Ke1 d2+ Kf2 d3 Ke3 f2 Bf3 Nh3 Rf1 d1B Qd2 Be2 Rd1 Bf1 Be4 Nc6 Rg8 Nd8 Rf8 Nf7 Rg8 Rd8 e8N Nfg5 Nc8+ Kb5 Qe1 d2 Ned6+ Ka5 Qe2 Re8 Kd3 Qf7 Rf8 Qf5 Kc4 Qf6 Rc1 d1N Qb3 Qf5 Qa2 Qg4 Qb1 Qf3 Qd3 Nc3 Re1 Na2 Rd1 Nc1 Qe2 Nd3 Rg8 Re5 Rd8 Rhe8 h8Q R5e6 Qh6 R6e7 Na7 Kb6 Qd2 Rh8 Bd5 Re1 Be4 Re8 Ra8 Be2 Rd8 Rh1 Rc8 Bf1 Ra8 Re6 Rh8 Re8 Nac8+
QRRr3Q/3b1PN1/2Q1r3/1B2p1q1/2Npn2N/pNp2q2/3RrB2/2k1bKn1 b - - 0 1 illegal: No proof kernel
q2B1N1Q/2q1Rp2/bpRb1K1n/Q4Rpr/2Q1N1P1/2B1nkN1/1b1p3R/1r6 b - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 e5 fxe5 a5 b4 axb4 g3 h4 Bg2 h3 Kf1 hxg2+ Kf2 Ra4 Ke1 Ra8 Kf2 Ke7 Kf3 Ke6 Kg4 d5 a4 d4 e4 d3 h4 b3 c4 g6 a5 b6 h5 b2 h6 Qc7 Kg5 Ra6 g4 Qc6 h7 Ra7 a6 Bb7 Qa4 Ba8 Nd2 b1Q Ne2 g1B Rh2 Qcb5 c6 Qc5 c7 Qc2 c8Q+ Rd7 a7 Nh6 Ng3 Qc6 c5 Qc3 Qa5 Qd6 c6 Qda3 c7 Rg8 h8B Bc6 a8Q Ke7 e6 Kd6 e7 Bd4 e8R Bb7 Re7 Na6 e5+ Kc6 e6 Nb4 Q8a6 Nc2 Nde4 Ne3 Qb8 Qa4 c8R+ Rc7 Ba3 d2 Rf1 Be5 Bg7 Rh8 Rf5 Qcc4 Bc5 Bb2 Bc3 Qaa2 Kf6 g5 Bd6 Qc5 Qc4 Ba6 Ree8 Qa1 Be7 Rh7 Bd8 Bd6 e7 Qa4 Rh8 Qa3 e8N Qa4 Qe2 Qcc4 Ng7 Qc5 Rf4 Kd5 Ne6 Qc6 Re8 Qa8 Nf8 Re7 Qa1 Qc7 Rf5+ Re5 Re7 Rh8 Bb4 Kd4 Qa4 Ra5 Qab5 Ra1 Qa5 Rb1 Qeb5 Nc2 Qba4 Ke3+ Bc3 Rh7 Qc4 Rh8 Rc5 Kf3 Rb5 Ne3 Rbe5 Qca7 Rc6 Qc7 Rf5+ Bf4 Qc8 Rh7 Q8e6 Rh8 Qd7 Ng8+ Kg7 Rh5 Qde6 Nh6 Qg6 Qab7 Qh7 Qa7 Qh8 Qa8 Rd5 Bd6 Kf6 Rf1 Rde5 Rb1 Rf5+
k2b2RN/1n1Bp2q/1q1BR3/QN1N1n1p/Q1br1Rr1/1p5p/Q1qP4/3RK3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kd7 f4 b5 a4 c5 a5 Kc7 f6 Kb7 f7 h5 d6 b3 f5 h3 g5 c4 a6+ Ka7 d7 c3 g6 b4 f6 b2 g7 c2 Bb5 Bb7 Nc3 b1Q Ba3 c1Q Nge2 Qf5 Nd4 Nh6 g8R Qb2 Qa4 b3 Bd6 Bd5 Rd1 Qc7 d8Q Qbc2 Bd7 Bg7 f8R Bc4 f7 Nc6 Nd5 Be5 Rf1 Bh2 Rf4 Na5 Re4 Qc6 Re6 Nb7 Qda5 Rd8 Nb5+ Ka8 a7 Qh7 Bf4 Rb8 Q5b4 Bd3 Rg1 Na5 Qa1 Kb7 Qa2 Rg8 Qba4 Rg3 Rg8 Nf5 f8N Rg4 Rf1 Rc8 Rf3 Qb6 Ng6 Rc4 Nh8 Rd4 Bb8 Bc7 Rf4 Bd8 Bd6 Qbc5 Ndc7 Bc4 a8Q+ Kb6 Qd5 Qb4 Qe5 Kb7 Na7 Qb6 Qc5 Kb8 Nd5+ Ka8 Qcb4 Nb7 Qc3 Qc7 Qca5 Qb6 Nb5+
2B2R2/1n1P3b/B1p2QNB/4b1Kp/8/2pqrrRp/b1N2kQq/Q1B2nR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 dxc4 e4 Ke7 d4 Ke6 Be3 f5 Kf2 h5 Kf3 a5 Kf4 h3 b4 c6 g4 c3 d5+ Kd7 e6+ Kd6 g5 a4 e5+ Ke7 d6+ Ke8 g6 a3 g7 a2 b6 Qe7 b5 Qb7 e7 Kd7 e8R Be7 Na3 Ke6 Ne2 Qd7 b7 Nh6 b6 Na6 b8Q Ng4 b7 Nh2 Qa7 Nc5 b8B Rf8 g8B+ Rf7 Rd8 Bf6 Rf8 Nb7 Bd2 Kd5 e6 Qc7 e7 Be6 e8Q Bh8 Rc1 a1Q Qe7 Qb1 Bh7 Qb5 Nc2 Kc4 Qa2+ Kd3 Qa1 Ba2 Bg8 Rf6 Be6 Rf7 Ba7 Re8 Bae3 Bd4 Bc8 Bg7 Kg5 f4+ Kg6 f3 d7 f2 Bh6 Rf3 Qd6+ Bd4 Qf6 Ree3 Rb1 Qc4 Rb5 Qf4 Rg5 Be5 Qe1 Qg3 Bc1 Qg1 Rg3 Qb5 Bg2 f1B Kg5 Qf2 Ned4 Qc4 Nf5 Be2 Nh4 Bd1 Na3 Bc2 Qg1 Ke2 Bf1+ Ke1 Qg2 Qfe2 Rg1 Bh7 Qh1 Qf2 Bd3+ Nf1 Ng6 Qh2 Nc2+ Kf2 Be2 Qe4 Ba6 Qd3 Qg2+
1kqbrB2/1p5N/NB2nN1Q/K3P1N1/B2RR3/b2pp2p/r1b3q1/2n1Q1R1 b - - 0 1 illegal: No proof kernel
3n1Q2/rp4B1/NP4KQ/N2R2p1/ppnQR1kq/1RB1b3/n3r1b1/q5BB b - - 0 1 illegal: No possible last move, all moves rejected
1R1KN2R/p1rR4/3B4/1B1BQn1p/4n1N1/rbpQ4/q1Prq1pb/N3B1k1 b - - 0 1 legal: proof: g4 e5 h4 b5 d4 f6 dxe5 b4 g5 fxg5 a3 gxh4 axb4 h3 b5 Qf6 Be3 Qh4 Bc1 Qd8 Kd2 Kf7 Kd3 Kg6 Kc4 Kh5 Kd5 Kg4 e4+ Kh4 b4 g5 f4 Kg3 f5 Kf2 e6 c5 b6 d6 f6 g4 b7 h2 f7 g3 e7 h6 e8B c4 b5 g2 e5 c3 b6 Nd7 Ke6 d5 b8R d4 b7 d3 Nd2 Ne7 Nb3 d2 Nf3 Qa5 Bb5 Bg7 f8B Nf5 Bd6 Rh7 Bf7 Qa2 Bg8 Nc5+ Kf7 Bf6+ Ke8 Be7 e6 Ne4 Ne5 Bf8 e7 Be6 Rb1 h5 Na1 Bd5 Kd8 Bb3 e8N Rc7 Bd5 Bh6 Rc8 Bf4 b8Q Bg3 Re1 h1R Re3 Re1 Ng4+ Kg1 Rd3 Bh2 Qf3 d1Q Bd2 Re2 Be1 Rd2 Rd4 Qe2 Qd3 Rc5 Qc7 Rb8 Qe7 Rb6 Qe5 Rc7 Rb8 Ra6 Rd1 Rb7 Rc4 Ra3 Rc7 Ba4 Rd7 Rc7 Rb1 Ng5 Rb4 Bb3 Rf4 Ne4 Rf3 Ng7 Rf8 Nf5 Rh8
1r1Q1Nq1/p1K2R2/4Q3/p3N2R/Q1b1n1p1/pRP1BN2/2qNr2b/k2B2nq b - - 0 1 illegal: Other
2n1nN2/pqPb2bR/r2q1r2/1BB3p1/1N1Q1pkQ/3N2p1/2KR2N1/1Q2qB2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 b4 Ke6 h4 Kf5 e4+ Kf4 c4 d5 e6 g5 h5 f5 b6 d3 b5 g3 e5 d4 b7 Ba3 c5 Qd5 b6 Qg2+ Ne2+ Kg4 c6 f4 h6 Qf3 h7 Qg2 e7 Nh6 e8N Qg1 c7 Nd7 b8Q Be7 e6 Bc5 e7 Qg2 b7 Bb4+ Nc3 Qf2 Nd6 Ba3 e8B Ng8 Na2 Bb2 Nf5 Nb6 Bb5 Qf3 Nh4 Nf6 Ng2 Ne8 Nb4 Bd7 Ra2 Nc8 Qa4 Rf8 h8Q Rf6 Rh7 Ra6 Qd1 Ba1 Ba3 Bc3+ Kc1 d2+ Kc2 Bb2 Nc1 d3+ Kb1 Bc3 Qa4 d1Q Rd2 Qe1 Qd1 Ne7 Qd8 Bg7 b8N Nc8 Qf6 Qee2 Qd4 Qb7 Qc2 Qe5 Kb2 Qe1 Qb1 Be6 Nd7 Rb8 Re2 d2 Nf8 d1Q Rd2 Bd7 Kc3 Qa8 Kb2 Rbb6 Ncd3 Rf6 Kc3 Qb7 Kb2 Qde2 Kc2 Qe7 Na2 Q7e5 Bc5 Qd6 Nab4 Bh6 Re7 Bg7 Qh6 Bh8 Rh7 Bg7 Qh4+
4Kn2/B1Q1QpRp/Pb1R3r/1n2R1bR/2Np1B1p/3Qb3/N3rqBk/7b b - - 0 1 illegal: No possible last move
2b1R3/2Np3Q/1kn5/4bQpq/Qb2nNPr/3Br2R/1BN1pNbp/1KB5 b - - 0 1 legal: proof: e4 c5 h4 b5 a4 f5 axb5 Qc7 d4 cxd4 exf5 Qf4 Bd3 Qxh4 Bf1 Qh2 Kd2 Kd8 f4 Kc7 b4 e5 c4 a5 Kc2 g5 b6+ Kc6 c5 h5 b7 h4 f6 e4 b5+ Kc7 c6 h3 b6+ Kd8 c7+ Ke8 f7+ Ke7 f5 Kd6 f6 Kc6 Bd3 e3 Na3 a4 Kb1 e2 g4 Kc5 Nc2 Bh6 f8N a3 f7 Nf6 Ng6 Bf8 Nf4 Nc6 b8B Ne4 b7 Rh4 Ra2 Be7 f8Q Kb6 Qf5 Bb4 Bb2 Ra5 Qh7 Re5 Ba7+ Ka5 b8N Re6 Na6 Re7 Bb5 d3 Be3 d2 Bd3 Re8 Qf1 d1B Bec1 Kb6 Qf3 Ng3 Qd5 Re3 Qdf5 Ne4 Na1 Bb3 Nc2 Bb7 c8Q Bd5 Qa8 Bc8 Ra1 Ng3 Nc7 Bg2 Qa4 Ne4 Ng6 Qd6 Nf4 Qg6 Nf3 Qh5 Nd2 Nf6 Ne4 h2 Nf2 Ne4 Rg1 Bf1 Rg3 Bh3 Bf6 Bg2 Rh3 a2+ Kb2 Ba5 Rb1 a1B+ Ka2+ Ka7 Rb8 Be5 Ra8+ Kb7 Kb1 Kb6 Bg7 Bb4 Rb8+ Bb7 Re8 Bc8 Bf6 Bed6 Bc3 Be5 B3b2
b2R1k1b/3pb1R1/Q1N1Qp1n/1p1B2r1/q3BnQp/PNK3B1/3rN3/2b4B b - - 0 1 illegal: No possible last move, all moves rejected
BBb2rkb/3pR1rQ/p5Rr/3NK1Bp/Q1p1BNq1/1P3N2/3rn2n/R7 b - - 0 1 illegal: No possible last move
3B1N1R/p2bb1qr/p2Q1Npk/1nQ5/K1nN2P1/1nB2npB/6Q1/Q4rR1 b - - 0 1 legal: proof: g4 d5 c4 f5 a4 h5 a5 h4 a6 bxa6 cxd5 f4 Qb3 Nf6 Qg3 f3 exf3 hxg3 f4 Ng8 f5 Rh5 Kd1 Rh3 Ke1 Rh8 Kd1 Kf7 Kc2 e5 Kb3 c5 f4 c4+ Ka4 e4 d4 c3 h4 c2 b4 g6 f6 e3 h5 e2 f5 e1N h6 Nd7 b5 Bc5 b6 Ba3 h7 Nf8 d6 Bb7 d7 Bd5 b7 Ne7 b8Q Bc5 Bb2 c1N Nd2 Qb6 d8Q Qc7 Qd6 Ne6 Ne4 Nf4 Bc3 Nc6 Nf3 Neg2 Qb7 Ne1 Bh3 Rhf8 h8Q Be6 d5 Na5 Nd4 Nf3 Qb2 Qe7 Qg2 Ncb3 Rag1 Nc4 Rh2 Bb4 Qc5 Rac8 d6 Ne2 d7 Rc7 d8B Bc8 Qh5 Kg8 f7+ Kg7 Nf6 Qe5 Qa5 Be7 Qg5 Rb7 Qf4 Qc7 Qd6 Kh6 Qac5 Be6 Qa3 Bc8 Qa1 Bd7+ Nc6 Re8 f8N Ned4 Qc5 Nb5 Nd4 Qe5 Nd5 Bg5 f6 Be6 f7 Kg7 Nh7 Qf6 Rhh1 Bf5 Rh2 Re1 Rhh1 Rf1 Rh2 Kh6 f8Q+ Rg7 Qfe7 Bd7 Qed6 Qf7 Rhh1 Be7 Ndf6 Qg8 Rh2 Rf7 Nf8 Kg7 Qh1 Qh7 Bg2 Qg8 Rh8 Qh7 Bh3 Kh6 Rg8 Qh8 Qh2 Rh7 Qg2 Qg7 Rh8
1n2R2B/p2Q1K2/p2pN1Bb/Q1bPQ3/r1RN2B1/1b2q1R1/1Rp3k1/1n1b3r b - - 0 1 legal: proof: b4 g5 h4 gxh4 e4 f5 exf5 c6 c4 Kf7 a4 Nh6 c5 Qe8 b5 Ng8 a5 Qd8 a6 Qb6 cxb6 bxa6 Qb3+ Ke8 Qc2 Kf7 Qd1 Ke8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 h5 f4+ Kh6 g4 e6 d4 h3 g5+ Kh7 b7 h2 b6 h4 g6+ Kh6 f6 h3 g7 c5 f7 c4 Ra4 c3 Be2 c2 Na3 Bb4 f8Q Bc5 Qf5 Nf6 g8B Ne4 Nf3 Nd2 Kf6 e5 Rc4 e4 Nb5 e3 Bb2 Nb1 Rg1 h1Q Kf7 h2 Rg3 Qe1 Bh7 h1B Ng5 Bf3 Ne6 Rg8 Bc3 Rg4 Bg6 Bd5 Bf3 e2 Bb2 Rh4 Bg4 Qg1 Qe5 e1B f5 Qe3 f6 Bd2 Qe1 Bc1 Qa5 d6 Ba1 Bf3 d5 Bd7 Bc3 Bd1 Nbd4 Ba4 Ba1 Bb3 Bb2 Nd7 b8R Rh1 Re8 Rc8 b7 Nb8 Ba1 Rc6 Bc3 Rb6 Ba1 Rb4 Bb2 Ra4 Bc3 Nc6 b8Q Bd2 Qb7 Nb8 Qd7 Bc1 Ke7 Bd2 f7 Bc1 f8R Bd2 Nd8 Bc1 Kf7 Bd2 Qh8+ Kg5 Qe5+ Kh4 N8e6 Qd3 Rc8 Bh6 Rc6 Qe3 Rb6 Ba2 Rb2 Bb3 Re8 Rb4 Rf3 Ra4 Rf4 Kg3 Rf3+ Kg2 Rg3+ Kf2 Bd2 Qf3+ Bf4 Qe3 Bg5 Kf1 Bf6 Kf2 Bh8 Kf1 Rh3 Kg2 Rg3+
5q2/n3b2N/1q1p2q1/BQp2n1p/R1r2R2/1pnK2NP/kNB3N1/r1B2QQ1 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 b4 f5 g4 fxg4 Qd3 Ba6 Qd2 axb4 Qd1 b3 Bg5 b4 Bc1 Bb5 cxb5 Qf6 Bg5 Qe7 Bc1 Qd8 Kd2 Ke7 f4 Ke6 a4 Kd5 e4+ Kc5 f5 g5 a5 h5 h3 b2 e6 d6 f6 c6 e5 g3 a6 g2 e7 b3 e8N Kb4 f7 c5 b6 g4 a7 g3 e6 Qh4 e7 Na6 b7 Qd4+ Bd3 Nh6 b8B Qg4 Nf3 g1N Na3 b1Q Bc7 g2 Nh4 Rc8 a8Q Qf3 Ng7 Nb8 e8Q Qb7 Ngf5 Be7 f8N Nc6 Ng3 Rg8 Nc4 Rg4 Qa6 Nf5 Bc2 Ne2 Qg1 Qb6 Nh7 Nc3 Kd3 Ra8 Nb2 Rc4 Qf7 Qa2 Qb5+ Ka3 Qf8 Na7 Bd8 Nh6 Qff1 Nf5 Bc7 Qb7 Ba5 Qb6 Qe3 g1Q Ng2 Qf2 Rh2 Qf4 Qeg1 Qh6 Nh4 Qg6 Rf2 Qb8 Rf4 Qf8 Rb1 Qa1 Ng2 Qa2 Be3 Qa1 Rd1 Ka2 Rd2 Qe1 Rdf2 Qa1 Rh4 Qe1 Rff4 Qa1 Rhg4 Qe1 Bc1 Qe4+ Kd2 Qc6 Kd3 Qb6 Qe3 Re8 Rf2 Bd8 Bd2 Rf4 Rf3 Re5 Qeg1 Re1 Be3 Ra1 Bc1 Re4 Rh4 Be7 Rf2 Re1 Rb4 Re4 Rf4 Rc4 Ra4+
1KQN1r1b/4Q1RR/4p3/bn1q1B2/bpp1N2R/3rp3/1QP2rqk/BB4R1 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h4 f5 Nh3 d5 Ng1 Nc6 Qf3 Ne5 Qd1 Nf7 gxf5 dxe4 Ba6 g4 Bf1 Ng5 hxg5 Qd7 Nc3 Qd6 Nb1 Qd8 Ke2 Kf7 Ke3 h5 Kf4 c5 Ke5 b5 f4 h4 a4 g3 d4 h3 a5 g2 f6 Kg6 f5+ Kh7 a6 b3 a7 e3 f7 b4 f6 Kg6 d5 h2 d6 e6 d7 b2 Ne2 Kh5 g6 Kh4 g7 Kh3 Nd2 b1Q Bb2 Qe8 d8R Rh7 Rd7 Rb8 a8B Qe7 Ne4 Qd8 Qc1 Ne7 g8R Nf5 Rg7 Nd4 Bd5 Nb5 Ba2 c4 Nd4 Rh6 Re7 Bd7 Nc6 Rh4 Bc3 Rf4 Qb2 Rf2 Rg1 Qd1 Bb1 h1R Ra5 Qb6 Nd8 Kh2 Rh7+ Bh6 f8Q Qb7 f7 Qf3 Qh8 Qh3 f8Q Bg7+ Qf6 Ra8 Qg8 Bh8 Reg7 Qc6 Ra1 Ra3 Bd4 Rd3 Ra7 Be8 Raf7 Qd7 Qe7 Qb7 Rf4 Qd5+ Kf6 Bd7 Kf7 Bc6 Bf6 Bd7 Rfh4 Rc3 Nc6 Nd4 Qc1 Rf4 Qc8 Rd3 Nd8 Ba4 Kf8 Nb5 Ke8 Rf5 Ba1 Rf7 Qb2 Rf4 Be2 Rf6 Rd1 Rhf1 Bg4 R1f2 Rg1 R6f5 Nd6 Rf8+ Kd7 Kg3 Rd1 g1B Rf1 Bh2 Rg1+ Qhg2 Bh3+ Kf3 Qa6 Be5 Kc8 Bd4 Ne4 Bb6 Kb8 Ba5 Ng5+ Kg3 Ne4+ Kh2 Qc6 Qf5 Qc8 Qd5 Bf5+
1QrBn2b/qpQQ1p2/2bQ2p1/1N1N4/rqBpBPNK/b7/3RR1k1/2q5 b - - 0 1 illegal: No possible last move
4NB2/q1pB1qrp/k1b3R1/1p2rQ2/2PN1N1p/1qQ3b1/b2K2nN/R3R1B1 b - - 0 1 legal: proof: f4 a5 h4 g5 e3 gxh4 e4 e5 b3 d5 exd5 e4 b4 axb4 Kf2 Nc6 Ke1 Ne5 fxe5 Ra4 Bd3 Ra6 Bf1 Ra8 d4 Kd7 a4 b5 g4 f5 c4 b3 e6+ Kd6 e7 b2 e8N+ Kd7 a5 e3 a6 f4 g5 e2 a7 f3 d6 Kc6 g6 Kb7 d5 f2+ Kd2 Be7 d7 Bf6 g7 Be7 d6 Bf6 Qe1 Nh6 g8R Bd4 Nf3 Be5 Bh3 f1Q Na3 b1B Rg6 Ba2 Nc2 Ka6 Ncd4 Nf5 Nh2 Bb7 Rhg1 Qc8 d8N Bc6 d7 Ne3 N8e6 Qb8 d8B Qf7 Be7 Rg8 Bf8 Rg7 Nf4 Ng2 Bd7 Qb7 Qg3 Qb8 Qc3 e1Q+ Kc2 Qe3 Re1 Qh3 Be3 Bd6 Kd2 Qb7 Nh5 Bg3 Nf4 Rd8 a8Q+ Qa7 Bg1 Rb8 Nf6 Re8 Qb8 Re5 Ne8 Qg4 Qd8 Qf3 Qg5 Qd3+ Kc1 Qb1+ Kd2 Qb3 Qf5
3N1n1Q/2bR3p/rQb3k1/2pN1qB1/Q2R3p/1q3QN1/p1P1Bq1R/5nnK b - - 0 1 legal: proof: f4 d5 h4 b5 e4 g5 a4 gxh4 axb5 e5 Bc4 a5 Be2 Ra6 Bf1 Re6 Ke2 dxe4 Ke1 e3 Bc4 e4 Bf1 Re5 fxe5 Qd6 Rh3 Qd5 Rh1 Qd8 g4 c5 b4 f5 d4 Kf7 g5 a4 e6+ Kg7 g6 a3 d5 a2 e7 e2 Kf2 e1Q+ Kg2 f4 e8Q e3 b6 e2 b5 Nh6 b7 Qc3 b6 e1Q d6 Qb3 d7 Qb5 Be2 Qbb4 Rh2 f3+ Kh1 f2 Nc3 f1N Nd5 Qg5 d8N Qb3 Qa4 Nd7 b8Q Ng4 b7 Qf5 Bg5 Nge5 Qd6 Rg8 b8Q Bb7 Qb6 Nf3 Qd3 Qd2 Rd1 Bd6 Qe3 Qe1 Rd4 Bc7 Qc8 Bc6 Qf2 Nfe5 Qf3 Qf2 Qca8 Rf8 Qab8 Rf6 Qc8 Kf8 g7+ Ke8 g8R+ Nf8 Rg7 Re6 Qf4 Nf3 Rd7 Rd6 Qca8 Rg6 Qe5+ Re6 Qh8 Rf6 Nh3 Ng1 Nf4 Rg6 Nh5 Rd6 Ng3 Rg6 Be7 Re6 Nb7+ Kf7 Nd8+ Kg6 Bg5 Bb5 Qba5 Ra6 Qb7 Bc6 Qc3 Rb6 Qf3 Ra6 Qb6
Kbn1r2Q/4n1bB/2NRp1Qp/6pP/1Nr1r1Bk/2RQ2B1/bpQ5/1R1n4 b - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 a5 f4 d5 cxd5 Qd6 b4 axb4 g5 Qf6 gxf6 Ra3 f5 Ra8 Ke2 Kf7 Ke3 b5 Kd4 g5 Kc5 b3 a4 c6 Kb6 b4 h4 c5 d4 b2 d6 e3 d5 c4 d7 c3 d8Q b3 d6 e2 d7 e1N a5 e6 a6 c2 a7 h6 h5 Be7 Rh3 Nd3 Be2 Rh7 Na3 b1R Bf4 c1B Bg3 b2 Bg4 Nb4 Nf3 Nd3 Qc2 Bb7 Nd4 Bf8 Nc6 Ne7 Kc7 Ba6 Kb6 Bb5 Kb7 Bg7 Qh8 Nc8 d8R Be3 Rd6 Re1 Rb1 Nf2 Qd3 Bb6 Nc2 Bc7 N2b4 Re4 Qc2 Be2 Qd8 Nd1 Qd7+ Kg8 f7+ Kh8 f6 Bc4 Bf4 Ba2 Rc3 Na6 Be5 Bb8 Bg3 Nc7 Qd8+ Bf8 Qd7 Nd5 Qe8 Nde7 Qd7 Bg7 f8Q+ Ng8 Qff7 Nge7 Qg6 Kg8 Qf5 Kf7 Qd8 Rh8 Qd7 Re8 Qg6+ Kg8 f7+ Kh8 Qf5 Rc4 Qfd3 Re4 f8Q+ Kh7 Qf5+ Kg8 Qh7+ Kf7 Qh8 Kf6 Rd4 Rd8 Qde8 Rd5 Qeg8 Rde5 Rd6 Rc4 Bf5 Ree4 Bh7 Ng6 Qe8 Kf5 Qeg8 Kg4 Qf7 Nge7 Qg6 Nb6 Nd4 Bc7 Ndc6 Re8 a8B Kh3 Ka7 Kg4 Bb7 Nbc8+ Ka8 Bb8 Na7 Re3 Bf3+ Kh3 Nac6 Ree4 Bh2 Kh4 Bg4 Rc5 Bf4 Rcc4 Bg3+
Q5R1/NKNnQ2B/rQ1q3R/5n1r/pB1rp2k/P2Bb3/1QpNp3/1r1r4 b - - 0 1 legal: proof: e4 g5 c4 b5 g4 bxc4 h4 d5 hxg5 dxe4 g6 Qd5 f3 Qd4 g5 Bg4 fxg4 Qd8 Kf2 h5 Ke3 a5 d4 f5 b4 e5 d5 Ke7 b5 c5 b6 h4 a3 c3 b7 a4 g7 h3 g6 Kf6 g5+ Ke7 d6+ Ke6 d7 c2 Qd4 c4 Nc3 h2 Nb5 c3 Nf3 Bc5 Nd2 Qe7 d8Q Nh6 g8N Qc7 g7 Nd7 b8Q Ra6 g6 Ba7 Nf6 Qd6 Q4b6 Rf8 Qdc7 Rd8 g8B+ Ke7 Bb2 c1R g7 c2 Ne8 Rb1 Bd3 Rd1 Rg1 h1R Bc3 Rh5 Bh7 Kf7 Bb4 f4+ Ke2 f3+ Ke3 f2 g8Q+ Ke7 Qh8 f1R Rg8 Rb1 Qa8 Rfd1 Qcb7 Ke6 Nec7+ Kf7 Kf2 e3+ Kf3 e2 Ke4 Qf8 Kd5 e4+ Kc6 Nf5 Qb2 Qe7 Qbb8 Qd6+ Kb7 Ke7 Qc5 Bb6 Na7 Kf7 Qb5 Be3 Qb6 Ke7 Qa2 Kf6 Qf7+ Ke5 Qe7+ Kf4 Rf8 Kg4 Rg8+ Kh3 Ra2 Nf6 Rb2 Kh4 Rb3 Qh2 Rc3 Rd4 Rc6 Qd6 Qe5 Nd7 Qe7+ Qf6 Re6 Qg5 Rh6 Qf6 Qe5 Qd6 Qf8 Rd5 Qb2 Rd4 Qe7+
2bq2QB/5B1Q/p2Npk1B/1NR2rb1/1K1pQ3/nB1pr2r/1bNP4/3r3R b - - 0 1 illegal: No possible last move, all moves rejected
2qr3N/r1rNNQ2/2B2Bb1/3pR2k/1p1pBQ1p/1n3QR1/rn3nKP/6Q1 b - - 0 1 illegal: No possible last move
1bNbk3/2p5/b3B1bp/rqBR1QpN/3Rp2r/1R2N1P1/2RKB1Qr/n7 b - - 0 1 legal: proof: h4 d5 c4 g5 b4 a5 e3 axb4 h5 Nc6 cxd5 f5 e4 fxe4 Nh3 Ne5 Ng1 Ng6 hxg6 Bg7 Ne2 Bh6 Ng1 Bf8 a4 e5 d4 b5 f4 e3 d6 e2 d7+ Ke7 d5 e4 f5 h6 d6+ Kf6 a5 b3 a6 b2 g7 Kf7 a7 b4 g3 b3 f6 Be7 Ra2 Rb8 a8N Bb7 Qc2 Ba6 Nd2 b1B Nc4 b2 Be3 Qe8 d8R Qb5 d7 Rb6 Ra3 Ba2 Rh2 b1R+ Kd2 Rb7 Nh3 e1B+ Ke2 Ra1 Nb6 Bf2 Kd2 Rb8 Be2 Rh1 Nf4 Ra8 Re8 Bd8 Nc8 Ne7 Rb3 Rf8 Nh5 Nc6 Bc5 Na5 Ne3 Ra7 Rg2 Rh2 Re5 Ra8 Rd5 Ra7 Rb4 Bb3 Rdd4 Be6 Rd5 Bf5 Rb3 Bg6 Qa2 Nc6 Qc2 Nd4 Qb2 Nc2 Qa2 Be7 d8R Na1 Rd4 Bg1 R8d5 Ke8 g8B Bd8 Be6 Rh4 Qb1 Rf7 Qf1 Rd7 Rf2 Rd6 Qg2 Rc6 Be7 Rc3 Bc5 Rc2+ Ke1 Ra2 Kd1 Ra5 Kd2 Bb7 Bc4 Rf4 Kc1 Ra8 Ng4 Bh2 Bb4 Ba6 Rd1 Bb7 Qf1 Ra2 Qg1 Qc5 f7+ Kf8 Qf1 Bg1 Rfb2 Bd4 Ne3 R8a5 Ba3 Qb4 Qh3 Ba7 R1d4 Rh4 Qh1 Be7 Rbd2 Qb5 Bc5 Bb8 Rg2 Rd2 Qg1 Rd3 Rc2 Rd2 Qh1 Rg2 Be2 Rgh2 Kd2 Ba6 Nf4 Kg7 Qg2 Bd8 f8Q+ Kh7 Qf5 Kg7 Qfh3 Kf6 Nd6 Ke7 Nh5 Kf8 Nc8+ Ke8 Qf5
N1N2b2/Q1R2bQp/B3kpp1/3rB1rN/p2b1PBK/N1b4n/1q6/2r1R1R1 b - - 0 1 illegal: No proof kernel
BK2N3/2rR2Bb/2p1pNQ1/Rp1N4/1Qr1B3/1P1brkr1/3q1bpB/n4Q2 b - - 0 1 illegal: No proof kernel
5KNk/3B2pp/2Q4B/Qq1n1B2/R2pp1Pb/1r2r1n1/nN3Q1R/1Q2Nn1r b - - 0 1 illegal: No proof kernel
B1B1kN1K/pr1rN3/3Rp3/Q5Np/1bnBr3/p3P2R/2n1nRR1/r2Q1q2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 g4 bxa4 h3 fxg4 Na3 g3 Nb1 g2 Ra2 g5 Ra1 g4 Na3 g3 Nb1 Bg4 hxg4 Qd6 Rh6 Qd7 Rh1 Qd8 b4 c5 d4 h5 Kd2 c4 Ke3 a3 Ke4 c3 Ke5 c2 f4 Qa5 f5 Rh6 b5 Qd2 b6 Rh7 d6 Rf7 b7 Nh6 g5 Kd7 e3 Rf6 g6 Qe1 g7 Qb4 g8B Qb3 d5 Kd8 d7 Na6 b8R+ Kc7 d8R Rg6 d6+ Kc6 d7 Kc7 f6 Qf7 Bb2 c1R Bd4 Rc4 Nh3 g1R Nc3 g2 Nd5+ Kc6 Rb2 Rg7 Raa2 Nb4 Ng5 Rb8 Rf2 Nc2 Rh3 Rb7 Rb2 Ra4 Ba6 Nf5 Bh7 e6 Ne7+ Kc7 Ra2 Nd6 Be4 Rf1 Rb2 g1N Bg2 Rb8 Ba8 Ne2 Bc8 Rb7 Rg2 Qg6 f7 Qd3 Rf2 Nc4+ Kf6 Rh1 Ng8 Bb4 f8N Kc6 Ne7+ Kd6 Qd2 Ra1 Qd1 Ra5 Ra2 Re5 Rg2 Re4 Rf2 Rg6+ Kf7 Rf6+ Kg7 Rf7+ Kh8 Kc7 Re8 Kd6 d8Q+ Rd7 Qa5 Rg7 Qb1 Qd1 Rb2 Qf1 Qd1 Rb7 Qd5+ Kc7 Rd8 Rf7 Rd6 Rg7 Nc6 Rd7 Ne7 Kd8 Qa5+ Ke8 Rg2 Bc3 Rb5 Bd2 Rf5 Bb4 Rff2
1B1kRQ2/p5q1/1rp1rNQ1/pBr3N1/1n4Q1/2P1NKpb/1Nn2R1B/6rn b - - 0 1 illegal: No possible last move, all moves rejected
2R4k/1q1r2N1/2N5/nnp1pbpB/2NnqpPQ/n5r1/1BQ1Q3/2B1K1RQ b - - 0 1 illegal: No proof kernel
1Rq5/2q1N1bq/1n1p1q1p/3pRNrB/BR1P4/k1B1K1N1/2r3p1/1nQ2Q1N b - - 0 1 illegal: No proof kernel
1BBqBrRn/B5Qp/Kb1R1rNp/5bR1/2r5/p5rN/1qk1p2P/2Q3N1 b - - 0 1 illegal: No proof kernel
Bk1NQ1Q1/2pB4/1Qr3nK/p2Br3/bbp2pR1/1n1n2B1/P1N2n2/3r1R1N b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 Bb7 c4 bxc4 h5 Qf6 g5 Qg6 hxg6 Bc8 Kd2 Kd8 e4 f5 b4 a5 g7 d5 b5 h5 e6 f3 Ke3 f2 Kf4 h4 e5 d4 g6 d3 Kg5 d2 e7+ Kd7 e8B+ Kd8 b6 h3 b7 h2 e6 Rh4 Ne2 Bc5 Ng3 Rd4 Bg2 f1R Bd7 Re1 Qb3 d1N Rf1 h1N Na3 Na6 b8N Ne7 g8B Ndf2 g7 Nd3 Kh6 Re5 Qb6 Ng6 Bf4 Nhf2 Nh1 Bb4 Nc2 Nac5 Bg3 Ra6 Ba8 f4 Rg1 Rd6 Raf1 Nb3 Rg2 Bb7 Bf7 Bc6 g8Q+ Ke7 Rgg1 Ba4 Rg2 Rdd5 Nc6+ Kd6 Nd8+ Ke7 Qb7 Rc6 Rgg1 Kd6 e7 Rd4 e8Q Kc5 Qc8 Kb6 Bd5 Ka7 Qa6+ Kb8 Bh2 Ndc1 Rg4 Rd1 Bg3 Ncd3 Qb6+
1B2b1Q1/nppBK2k/1R2nQN1/2n4N/r1pr4/3nrBRp/1P1B3N/2bR4 b - - 0 1 illegal: No proof kernel
nN6/3nq1p1/4r1Q1/4pRp1/bB1QNR1p/r1b2P1B/k1Np2RQ/b2KR3 b - - 0 1 illegal: No proof kernel
3K1NRr/1Brp1p2/P1QQRn2/1p4nb/r3N2B/B3kp1R/NN2p3/b1q5 b - - 0 1 illegal: No proof kernel
1B4BK/q1ppn1P1/1N1pQ3/6p1/Q1pkQb2/r2rRR2/2nR1nbN/4N1Q1 b - - 0 1 illegal: No proof kernel
B1k3b1/1R2Q1q1/R2QN3/pBp1prp1/RR1QP1Kp/4r2n/7b/2B1nqN1 b - - 0 1 legal: proof: g4 b5 h4 g5 a4 d5 axb5 f6 c4 Nc6 cxd5 Nb8 Qb3 Na6 Qg3 gxh4 g5 Nb8 g6 Bd7 Qf4 Bc8 Qg5 fxg5 f4 Kd7 Kf2 a5 Kf3 c5 b4 h5 e4 h3 d4 e6 b6 h2 b5 Ra7 d6 Bg7 f5 Na6 d5 Qf6 b7 Qe5 b8R Qf6 b6 Qf8 f6 Qd8 f7 Bb7 f8Q Qe8 Na3 Ne7 Bb5+ Nc6 Nc2 Nc7 Nd4 Be5 g7 Qg6 g8B Qg7 Ra4 Bf4 Qf6 e5 Ne6 Ba8 Rb7 Kc8 Qf7 Nb4 Qe7 Nc2 Bf7 Rf8 Bfe8 Rh8 Bec6 h4 Kg4 Rf8 Rb4 Ra6 Ra7 Rf5 d7+ Kb8 b7 Rb6 d6 Nd5 Ra6 Ne1 Ra4 Bg3 Rb4 Nf4 Bd5 Nh3 Ra4 Rc6 d8Q+ Rc8 Qdf8 Rd8 Qff6 Rf8 d7 Rf3 Rb4 Rc3 Qf2 Rf5 Qd4 Rd3 Rd6 Re3 d8Q+ Ka7 Qdd7 Kb8 Ra6 Bf4 Ne2 Bg3 Rf1 h1Q Ng1 Qg2 Rf2 Qf1 Ra2 Bh2 Raa4 Rd3 Rb6 Re3 Qdd6+ Ka7 b8R+ Bb7 Nc7 Bc8 Bb7 Be6 Ba8 Bg8 Rc6 Be6 Rbb6 Bg8 Ra6+ Kb8 Rcb6+ Kc8 Ne6 Rf7 Rb7 Rf2 Bd2 Rf5 Bc1
4N2R/1N3b2/1qPprRq1/4N1p1/3n1pK1/R1Bk2b1/BQp2Bp1/Nr4Qn b - - 0 1 illegal: No proof kernel
K1n2Q2/2R1b2p/p3BBN1/R1b2qQ1/2N1p3/2prB1N1/P1nq1rp1/2Q1Q2k b - - 0 1 legal: proof: g4 b5 e4 g5 c4 bxc4 h3 d5 Bg2 f5 gxf5 g4 Bf1 g3 Qf3 Bd7 Qd1 dxe4 Qb3 Ba4 Qf3 Bd1 Qb3 Bf3 Qd1 Bg4 hxg4 Qd3 Qa4+ Qd7 Qd1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 g2 f4 c6 b4 e6 f6 c3 f5 e3 f7 e2 g5 e1B f6 a6 b5 c2 b6 Ra7 b7 Ne7 g6 Qc8 g7 Ng6 g8Q Bg7 f8Q+ Ne7 Rh5 Qd8 Ne2 Qa5 Ng3 Ra8 Bc4 Bh6 f7 Qf5 Na3 Bf4 Nf1 Bh4 Qg5 Ra7 Qfh6 Rf8 Qe1 Nc8 d3 Bh2 Be3 Bg1 Rc1 Bgf2 Bb3 c5+ Kc4 Ke5 d4+ Ke4 d5 Kf3 d6 e5 Kd5 c4 d7 Nc6 b8Q Nd4 d8B Rd7+ Kc5 Bg1 Bf6 e4+ Qe5 Ne6+ Kc6 Rd3 Kb7 Nd4 Qd6 Bgf2 Ka8 c3 Be6 Bg1 Rd1 c1Q Nc4 Qd2 Rb1 Bgf2 Rb7 Nc2 Rc7 Bg1 Bf4 Bc5 Be3 Bg3 Qe7 Bgd6 Qd8 Be7 Qe8 Rh8 f8N Rg8 Ng6 Rf8 Qb5 Rf7 Qbb1 Rf8 Qec1 Rf7 Qf8 Ke2 Bf4 Kf2 Qe1+ Kg1 Qbc1 Qh3 Be3+ Kh1 Bg7 Rf2 Bf6 Bb4 Qg4 Bbd6 Ra5 Bc5 Qg5 Qf5 Ng3+
1b1R4/1qr1QQp1/Npp3R1/2BN1p1N/1p3P2/1n1nqQ2/kB1RQ2r/3b1K2 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 Be4 Kd6 Bg2 Kc5 d6 Kb6 Bd5 exd5 Bh6 Kb5 Bc1 Kc6 f4 Kb5 a4+ Kc4 e4 f5 h4 b6 h6 d4 h5 c6 e5 d3 a5 d2+ Kf1 Ra6 e6 Bb7 e7 Ba8 e8Q Qg5 d8R Ne7 h7 Bb7 h6 Qg6 d7 Qg4 Bb2 Ra8 a6 Nd5 a7 Bc8 Nc3 Qh4 Qf7 Qg3 Rh2 Na6 Nge2 Qe3 Ng3 Nc5 Qf3 Kb3 Nh5 Bd6 Qe2 Rb8 a8N Ba6 Nc7 Rc8 Rf2 Bd3 Na6 Rc7 Qe7 Nf6 Nd5 Bc4 Rg2 Bd3 Ra2 Bc2 Rg6 Bd1 Qf7 Nd3 Qf3 Re8 h8Q Ne4 h7 Nec5 Qhf8 Be5 Q8e7 Rh8 Ba3 Bd6 Rc2 Be5 Bb2 Ka2 Qe2 Nb3 Qf3 Re8 h8Q Rg8 Qh6 Rh8 Qhg5 Rh7 Qgg2 Bd6 Qge2 Rh8 Ng3 Rh2 Nh5 Rc8 Rh8 Bb8 d8B Rc7 Re8 Ra7 Bc7 Rb7 Bce5 Rc7 Bed4 Ra7 Nhf6 Ne5 Rc1 Bc2 Ndc7 Rb7 Re1 d1Q Bc5 Qd7 Ncd5 Nd3 Rd1 Ra7 Rd2 Bd1 Nh5 Qc8 Qg3 Rc7 Rd8 Qb7 Qgf3
3B2QN/4P3/pQp4r/1QR2bq1/1K1brpn1/n2pq2Q/p1BR1k2/3RNN2 b - - 0 1 illegal: No possible last move
1qn3nR/1N2pq2/p3pb2/5p1k/1RNBrPp1/3Q1Bb1/QK5B/BN3rQ1 b - - 0 1 illegal: No possible last move, all moves rejected
K1QNQ2n/B6r/rr1k2pB/3Rppp1/7n/1Qp1PQN1/b1n5/1N1B2Rq b - - 0 1 legal: proof: f4 b5 a4 d5 axb5 h6 g4 e6 c4 dxc4 g5 hxg5 f5 Bc5 f6 Be7 fxe7 Kd7 Ra5 c5 Kf2 e5 Ke3 f6 Ke4 a6 Kd5 Rh6 h4 Qe8 d4 Qf8 b4 Nc6 b6 Nd8 b5 Nf7 b7 Rh8 b8B Ngh6 h5 Nf5 b6 g6 b7 c3 e3 c2 h6 c4 h7 c3 Ne2 Nd8 Ng3 Qe8 Be2 Nf7 Ba3 Ra7 Rb5 a5 Rg1 Ra6 Ba7 a4 b8Q Bb7+ Kc5 Bd5 Bb4 Bc4 d5 a3 d6 a2 Qa8 Ke6 d7 a1N Qg2 Qa8 e8Q+ Ne7 Qgf1 Qh1 Qf3 Ba2 Qc8 Nf5 d8N+ Ke7 Qdd5 Nh4 Bd1 f5 Ra5 Rg8 h8Q Rg7 Qg8 Nh8 Qe8+ Kf6 Kb5 Rc7 Bf8 Rh7 Bh6 c1R Na3 Rc2 Nb1 Rb2+ Kc5 Rbb7 Qb3 Nc2 Rb5 Ra3 Kc6 Ra4 Qeg8 Ke7 Rd5 Rb6+ Kc7 Rf6 Kb8 Rb6+ Ka8 Raa6 Rb5 Kd6 Qe8 Re7 Ra5 Rh7 Rd5#
1kb4Q/2Nqr2r/N1ppQ3/R2Npn2/Bp1B3Q/pK1PBB2/2R5/3n1nr1 b - - 0 1 illegal: No proof kernel
3qQN1R/K4pNR/2pnB1QN/1b1Rp1r1/3QRb1n/1p1n4/p1P2b2/Bk6 b - - 0 1 illegal: No proof kernel
2bbQQ1n/4BqpB/Q1KN1B1R/4k1r1/1p5r/1q4p1/pp1R2PB/1N1r2R1 b - - 0 1 illegal: No possible last move
4BKnQ/1pQpB3/BNqp1b2/R2P1p1B/r1q1n1Nr/2N3Q1/7p/n1R4k b - - 0 1 illegal: No proof kernel forced: wxLB
bnKN1R2/3pN3/Rr2N1pk/2p1Q1q1/p4B1b/PR6/1rR1p3/Q2BqqB1 b - - 0 1 legal: proof: e4 h5 d4 c5 g4 hxg4 d5 f5 exf5 b5 c4 Nc6 dxc6 bxc4 Ke2 Kf7 Ke3 e5 Ke4 a5 Kd5 e4 h4 c3 f4 g3 b4 e3 f6 Kg6 f5+ Kh6 c7 c2 h5 g2 f7 g6 b5 Qh4 f6 Ra6 b6 Kg5 b7 Qh3 b8Q Bd6 f8R Rc6 h6 Bf4 f7 Bb7 c8R Qh2 h7 Bg3 Ne2 g1Q Nf4 Qhf2 Rh2 Rc7+ Kd6 Bf3 Nc3 Rb7 Be2 Rb6+ Kc7 Bg2 Nd5 Qge1 Ne7 Bh4 Ne6+ Kh6 Nd8 Rb2 a3 a4 Rb1 Rb5 Rb3 Bh1 Bd2 Kg5 Qa1 c1Q Bd1 Kh6 Rg2 Qff1 Rf2 Qc2 Bc1 Qf5 Rc2 Qg5 Bd2 e2 Bc1 Nf6 Bf4 Rg8 h8B Ng4 Bd4 Ne5 Bf2 Nc6 Bg1 Ra5 Kb7 Ra6 Qbe5 Nb8+ Rc6 Rb6+ Kc8 Bd5 Re6 Ba8 Rf6 Rb5 Ra6 Rb6 Re8 Rh8 f8N Rg8 Nfe6 Rf8 Bfe3 Rf4 Bc1 Rfb4 Bf4 R4b5 Rf8 Rb4 Rh3 Rb2 Rb3
R3rBBN/3qn1B1/5B1K/Q1pQb1p1/2qNNqb1/n2pp1R1/k2p2PQ/8 b - - 0 1 illegal: No proof kernel
1Q1q1RB1/4n1pR/3BQBqb/qN2Rpk1/1N3N2/2np1K2/2ppB1P1/3br3 b - - 0 1 illegal: No possible last move
k7/2QppB1p/3rp3/B1Q2rNK/q1pP1Qn1/1N1q4/2RQb2p/N1n1R1R1 b - - 0 1 legal: proof: b4 b5 h4 g5 c4 gxh4 cxb5 Nh6 a4 Ng4 e4 Ba6 e5 Bc8 e6 fxe6 Ne2 Bh6 Ng1 Be3 a5 Bb6 axb6 Nh6 Qe2 Ng8 Qg4 Nc6 Qd1 Nb8 Ke2 a5 Kf3 c5 Kg4 h3 d4 a4 f4 c4 b7 a3 b6 h2 b5 a2 f5 Ra5 f6 Nh6+ Kh5 Qc7 g4 Kd8 g5 Rg8 f7 Qc6 g6 Nf5 g7 Re8 g8Q Qg2 f8R Ra6 Na3 Ra5 Qd2 Nc6 b8Q Qg3 b7 Qb3 b6 Qc2 Bd3 Qb3 Qbf4 Rd5 b8Q Nd6+ Qgg5 Rf5 b7 Ne4 Nh3 Na5 Rg1 Nf2 Nc2 Ng4 Rf6 Rd5 Bg6 Rf8 Bf7 Rd6 Qc5 Qd3 Ng5 Nb3 Ba3 Nc1 Bb4 Qg3 Qba7 Qd3 b8N Bb7 Nc6+ Kc8 Ba5 Ba8 Rb1 a1Q Rg6 Qaa3 Na1 Qa4 Rb2 Bb7 Re1 Ba8 Rc2 Bb7 Bg8 Rf5 Bf7 Ba8 Bb6 Bb7 Na5+ Bc6 Bc7 Bf3 N5b3 Be2 Qaa5 Kb7 Bd8 Ra6 Bb6 Ka8 Qcc7 Qe4 Qac5 Qd3 Ba5 Rd6 Rg7 Rf6 Rg6 Nf2+ Nf3 Rf5+ Rg5 Rf6 Rg3 Ng4 Rgg1 Rf5+ Ng5
BnRN3R/RrnP2N1/5R2/3R4/2Q2R1K/Bk4Np/3pnrr1/2qq1q2 b - - 0 1 legal: proof: b4 b5 c4 a5 e4 g5 h4 f5 exf5 gxh4 a4 axb4 axb5 Ra4 Bb2 Ra6 Bc1 Ra8 b6 d5 Ne2 Bh6 Ng1 Ba6 c5 Bc4 d3 Bf4 Ba3 Bd6 cxd6 c5 Bb2 Bb5 Bc1 c4 Ra6 c3 Ra1 Bc4 dxc4 Ra3 Bb2 Ra6 Bc1 Ra8 g4 Kd7 f4 Kc6 Kf2 Kc5 b7 h5 g5 e5 d7 e4 g6 d4 f6 c2 f5 h3 Kg3 b3 f7 Kb4 f8R e3 f6 e2 f7 e1R c5 h2 c6 d3 c7 d2 c8R b2 g7 Qg5+ Qg4+ Kb3 Na3 b1N Nc4 Qg6 Nd6 Nc6 b8N Nc3 Kh4 Nge7 g8R Ra7 Nf5 Re2 Ba3 c1Q Bg2 Rb7 Ng7 Rf2 Ne2 Qgb1 Ng3 Ne2 Be4 Rh6 Rh8 Nd5 Rf1 Rg2 Rf5 Nc7 Rd5 Rf6 Qe6 Rff2 Bf3 Nb4 Nc6 Nba6 Nd8 Nb8 Qe4 Qbc2 Qd4 Q2d1 Qf4 Kc2 Qc4+ Nc3 Bb2 h1Q+ Kg5 h4 Re5 h3 Ra7 Rb4 Kh4 Na8 Ba3 Nc7 Ba8 Qhf1 Rd5 Rb3 Re8 Rb7 f8R Qb1 Re4 Qbc1 Bc5 Kb2 Rf6 Ne2 Bf8 Rb3 Ref4 Rb7 Qd4+ Kc2 Ba3 Kb3 Qc4+
1N1NR1R1/r6q/1nB1pR1n/B1qRpn2/3pr1k1/P6r/KB6/1QRR4 b - - 0 1 legal: proof: c4 c5 d4 h5 dxc5 d6 e4 e6 g4 Na6 gxh5 Bd7 b4 Bb5 c6 Nb8 c5 Ba6 b5 f6 e5 fxe5 bxa6 Qg5 Bd2 Be7 Bf4 Bd8 Bc1 Bb6 cxb6 axb6 Bb2 Qf6 Bc1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb2 Kf5 f4 g5 h4 d5 a3 g4 a7 b5 c7 b4 c8R b5 h6 g3 h5 d4 h7 g2 h6 b3 Nc3 b4 Nb5 Qe7 Rd8 Qf6 Nf3 g1R Bg2 Nc6 Nc7 Qf8 Rd5 Nd8 Na6 Qe7 Ng5 Qc5 Nb8 Qf8 Nf7 Nc6 Nd8 Kf6 f5 Qc5 Qd3 Rf1 Qb1 Rf4 Rd1 Kg5 f6 Nce7 f7 Kg4 f8B Nf5 Bd6 Re4 Bc7 Re1 Ba5 Re2+ Qc2 Re4 Kb1 b2 Ka2 b1N Bb2 Nd2 Rac1 Nc4 Qb1 Nb6 Bh1 Nge7 Bg2 Rf8 h8R Ng8 h7 Ngh6 Bh1 Rf7 Rf8 b3+ Ka1 Rd7 h8R Rb7 Rf6 Rh7 Re8 Rh8 Bbc3 b2+ Ka2 Ng8 Bg2 Rh3 Bf1 Ngh6 Bb5 Rh2 Bc6 Rh3 Nd7 Rc8 a8R Rc7 Nb8 Ra7 Rg8+ Ng7 Qc2 Kg3 Na6 Re1 Nf7 Kg4 Rae8 Ree3 Nd8 Re2 Kb3 b1Q+ Qb2 Qf5 Ka2 Qh7 Nb8 Re1 Qb1 Re4 Rh8 Ngf5 Bb2 Rf4 Rhf8 Re4 Rg8+
3qqB1k/3nn2q/B1B1p3/q2p2N1/1B3P2/pq4n1/R2Q2KN/1B2B1RR b - - 0 1 legal: proof: e4 b5 h4 g5 d4 d5 a4 bxa4 e5 a5 Qf3 g4 Qd1 h6 Bg5 Ra6 Bc1 Rd6 exd6 c5 Ra3 cxd4 Ra2 Bb7 Ra1 Bc8 f4 h5 f5 e6 f6 Be7 Bh6 Rh7 Bf4 Rg7 Bc1 Rg5 hxg5 Bb7 Ra3 Ba6 Ra1 Bc8 fxe7 f5 Qe2 f4 Qf2 f3 Kd1 Kd7 Qe2 f2 Kd2 Ba6 Qe1 Be2 Qd1 Bf3 gxf3 Qe8 Be2 Qf8 Bf1 Qd8 Ke2 Ke8 c4 Kf7 e8B+ Kg7 b4 h4 b5 h3 d7 g3 c5 g2 g6 a3 b6 a2 f4 a4 Kf3 h2 b7 a3 c6 d3 c7 d2 c8B Na6 b8B Qc7 d8B Qc6 Nh3 g1Q Bd3 f1N Bh4 Qa4 Bd6 Qad4 Ng5 Kh8 Be1 Ne7 Bc6 Nb8 Bca6 Qc3 Qc2 Qe3+ Kg2 d1Q Bcd2 Qa5 B2b4 Qeb6 Nd2 Qd8 Ndf3 Nd7 Qd2 Ng3 Bb1 Qb3 g7+ Kg8 Ne4 Kh7 g8R Qe8 Rg5 Kh8 Re5 Qed8 Neg5 Qe8 Re2 Qed8 Rg1 h1Q+ Kf2 Qh6 Kg2 Qh7 Nh2 Qe8 Bg6 Qed8 Rc1 a1Q Bb1 Nc8 Bf8 Ne7 Qe3 Qf6 Ra2 Qff7 Qd2 Qfe8 Rh1 Ne5 Bf2 Nd7 Rcg1 Qhd3 Be1 Qdg6 Qe2 Qh7 Qd2
1rq5/1Rb1N1KB/Bk2BRn1/1B2n3/bR2P1Q1/5q1B/1Nr1b2B/4qn1n b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 d4 c5 f4 exf4 a4 cxd4 axb5 Qb6 Rh5 Qc7 Rh1 Qd8 Kd2 d5 Kd3 Kd7 g4 Kc7 e4 f5 c4 h5 g6 f3 a6 f4 a7 f2 g5 h4 c5 h3 g7 f3 b6+ Kc6 b7 h2 g6 Bg4 Bh3 f1B+ Ne2 f2 Nd2 Bh5 Nc4 Qc8 Bf4 Be7 Nb2 Na6 b8R Bd8 Rb4 Ne7 g8B Nb8 g7 Bf3 Bge6 Ng6 g8B Bc7 Bh7 Nd7 Bg3 Rb8 a8B+ Rb7 Rg1 h1N Ra7 Rf8 Bh2 Nde5+ Kd2 d3 Ke3 d2 Kd4 Bh5 Nc3 Bb5 Qg4 f1N Rg2 Rf7 Rf2 Ba4 Rf6 Rd7 Nb5 Re7 Nd6 Rd7 Nf5 d1Q+ Nd3 Qe1 Nb2 Ba5 Ne7+ Kc7 Qf5 Be2 c6 Rd6 Qg4 Rd8 Rc4 Kb6 c7 Rb8 Bc6 Rd6 Bb5 Rc6 Rb4 Rc1 Rf8 Rc2 Rf6 Nc4 Rf5 Bd1 Ra8 Kb7 Kc5 d4 Kd5 d3 Kd4 d2 Rf4 Qf8 c8B+ Kc7 Bca6 Qc8 Kd5 Bb6 Bed7 Ba5 Ke6 Nce5 Kf6 Bf3 Be6 d1Q Rf5 Qd3 Rf4 Be2 Kg7 Qf3 Rf8 Kb6 Rf7 Kc5 Rf6 Bc7 Ra7 Kb6 Rb7+
1BR1BN2/1rq3n1/1Br5/1Br3R1/5rbn/1Bb1b1nB/QP1k2N1/bK1N4 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 exf4 h5 a5 h6 Qd6 Qa4 Qa6 Qd1 gxh6 bxa6 h5 Ra2 h4 Ra4 Bb4 Ra1 Bf8 d4 Kd7 Kd2 Kd6 Kc2 h5 e4 f5 g4 c5 g5 h3 a7 f3 g6 h4 g7 a4 Bc4 f4 Qd2 h2 Qd1 a3 Be3 a2 Qd2 h3 Bb5 c4 Ba4 f2 Nc3 f1R Qf2 f3 Nb1 c3 Bb5 Nf6 g8B Rh6 Ne2 Bg4 Rg1 h1N Nf4 h2 Ng2 Nbd7 Bf4+ Ne5 Qe1 Rb8 a8B f2 Qe3 Kc7 d6+ Kb6 d7 Bg7 d8N Ng6 e5 Ng3 e6 h1R e7 Rb7 e8B Nfh5 Bb3 Nh4 Bb8 Rc6 d5+ Ka5 d6 Kb4 d7 Be5 B3a4 Ng7 Ne6 Rh3 d8B Rh2 Kd3 c2 Bb3 c1B Nf8 Bc3 Qe6 Be3 Kc2 Kc5 Qf7 Kd4 Bb6+ Rc5 Nd2 Rh1 Rc1 a1B Kb1 Rh2 Nc4 Kd3 Na3+ Kd2 Nc2 Nf3 Qc4 Rh6 Qa4 Rhc6 Qa2 Rf7 Bb7 Nh4 Bc8 Rb7 Bf5 Rd1 Bc8 f1Q Bce6 Qf7 Bf5 Bed4 Nce3 Rf1 Nd1 Be3 Bc8 Rf4 Bf5 Bf3 Bh3 Bg4 Re1 Bg1 Re5 Qc7 Rg5 Bcd4 Rc4 Bc3 Re4 Be3 Re7 Qd8 Rc7 Qd6 Rc8 Qd7 Qa7 Qc7 Qa2
1bBk3B/3B2RK/B5Bn/N3r3/Nnq1P3/r1Qn4/1rqpbr2/N2BR3 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 d4 c5 f4 exf4 a4 cxd4 axb5 Qb6 Rh5 Qc7 Rh1 Qd8 Kd2 d5 Kd3 h5 c4 f5 g4 h4 c5 f3 g6 h3 b6 f4 g7 f2 c6 f3 g5 h2 c7 Bd7 c8B Na6 b7 Rh7 b8N Bd6 g6 Ke7 Nc3 Bf4 Qb3 Bh6 Bb2 Bf4 Na4 Be5 Nc6+ Ke8 Qc3 Qc7 Re1 Nh6 g8B Bg4 Bge6 Re7 g7 Bd6 Bf5 Re5 g8B Qf7 e4 Bb8 Bg6 Nb4+ Kd2 d3 Ke3 d2 a6 d1Q a7 Qc2 Bfa6 f1R Na5 f2 Ne2 Bh5 Nd4 Kd8 Ndb3 Be2 Rg1 h1N Na1 Qc7 Kf4 d4 Rg4 d3 Bb3 d2 Bd7 Qc4 Bac8 Re7+ Kg5 Re5+ Kf6 Rg1 Kg7 f1R Kh7 Nf2 Rg3 Nfd3 Ba6 Qb1 Bd1 Rf2 Bdc8 Qc2 Rg5 Bd6 Rg4 Rb8 a8B Rg3 Bc6 Rb6 B6d7 Bb8 Qa3 Nd5 Bd4 Rb2 Qc3 N5b4 Rg5 Rb5 Bh8 Re5 Rg4 Nf4 Qd4 Ra3 Qc3 Nfd3 Bf7 Raa2 Rg7 Ra3 Bg6
3rB3/7b/2PRN2p/qn2Nq1b/3R1Q1K/2r3BB/1nr2RbR/1Rb1R1k1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 f4 Kf7 Kf2 e5 Kg3 d5 c4 h6 f6 Ke6 c5 Kf5 f7 Ke4 c6 d3 b6 d2 b7 Ke3 g6 e4 g7 d4 f5 d3 f6 b3 Nf3 b2 Rh4 Qd7 Rh2 Ra3 Nc3 b1B Ne2 Ne7 g8B Nd5 Ned4 Nc3 Kh4 Kf2 Ne5 e3 g4+ Kg1 g5 e2 g6 Na6 b8R Nc5 Qa4 d1B Bf4 e1Q+ Bg3 d2 g7 Bh5 Rb5 Ba6 Bh3 d1R Rbb2 Be7 f8R Bh7 Bf7 Bf1 g8R Rd2 Rg4 Nd3 Rd8 Rc2 Rc1 Bg2 Rbb1 Bc5 Qc4 Qe6 Rd6 Rd8 Be8 Nb5 f7 Rb3 f8R Ba3 Rf2 Qf5 Rd1 Bc1 Ne6 Nb2 Re4 Rf3 Ree2 Ra3 Qf4 Rb3 R1d5 Qa5 Rd4 Rbc3 Re1+
KRqbQ2R/1R6/1b2b3/7R/1kr3B1/NPpr1Rb1/1nB2Brb/q2R2N1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 d4 Kd7 Kd2 Kd6 Ke3 f5 b6 a5 b7 c5 b8R h5 g6 c4 b3 h4 g7 h3 Qc2 g2 Nd2 f4+ Ke4 h2 e3 g3 Rb7 f3 Qd3 f2 Nb1 a4 Qe2 Rh3 Na3 Ne7 g8B Be6 Bh7 Rc8 Bf5 Bh6 Bg4 Nc6 Bd2 Bg5 Be1 Qc7 Rd1 Na5 Rd3 Bd8 Rd1 Kd7 d6 Kc6 d5+ Kc5 d7 Qb8 d6 Qa8 Nf3 g1B Ke5 g2 e4 Rc7 Rd3 Qc8 Re3 Bh4 d8R Rc6 Re8 Bd8 d7 Rg3 Rh8 Rd6 Nc2 a3 Rd3 a2 Na3 a1B+ Rc3 Be7 d8R Rd3 Rh5 Bb2 Rdh8 Bd8 Qe3+ Rd4 Be2 f1Q Bf2 Qa1 Bd1 Bc1 Rd3 c3 Bc2 Bd2 Qe2 B2g5 Re3 Rc4 Qe1 Bb6 Rd3+ Kb4 Kd6 Bh4 e5 Bd8 Qe4 Rh3 Qc6 Rg3 Qe8 Rh3 Ng5 Re3 Nh3 Re2 Rf3 Re3 Bh4 Bf2 Rd1 h1R Ng1 Rh2 Bg3 Be1 Bf2 Rd3+ Bd4 Bd7 e6 Beh4 e7 Bg3+ Kd5 Bf5 Qf7 Bd7 e8R Bf5 Reg8 Bd7 Qe8 Bf5 Ne2 g1B Rf8 Rg2 Rfg8 B1h2 Ng1 Nc6 Rf8 Ne5 Rfg8 Rdd2 Rf8 Nd3 Bf2 Rf4 Kd6 Be6 Rfg8 Qb8+ Kc6 Nb2 Rgg7 Rdd4 Rgc7 Qa8 Rc8 Rd3 Rb8 Qa6 Rd7 Qc4+ Kb7 Qc8+ Ka8 Rc4 Rb7
2RN2RB/4R2n/1K3N1Q/1B3p1n/R1r2Pq1/B1R1nk2/1r2r1b1/1rR2rr1 b - - 0 1 legal: proof: b4 c5 bxc5 d5 e4 dxe4 a4 b5 axb5 Qd7 Nf3 Qd6 Ng1 Qd8 h4 g5 c6 gxh4 Ra2 e6 Ra4 Bd6 Ra1 Bf8 Bd3 a6 Bf1 Bc5 Bc4 Bb6 Bf1 Ba7 b6 Bb7 bxa7 Bc8 Ke2 Ke7 Ke3 Kf6 g4 Kg5 d4 f5 c4 h5 f3 h3 d5 h4 Kd4+ e3 Kc5 Kf4 d6 a5 g5 h2 d7 h3 c7 e5 g6 e4 g7 a4 Ra3 Nf6 g8R Bb7 c8R Nh5 Rc6 Qh4 d8B Nd7+ Kb5 Ndf6 c5 Rb8 a8R Qg4 Ba5 Nh7 Nd2 e2 Rc3 e1N Re6 e3 c6 a3 c7 e2 c8R a2 Re7 a1R Ba3 Nc2 Kb6 e1R Qc1 Rb1+ Bb5 Re2 Ne4+ Ne3 Nf6 Kg3 f4 Kg2 B5b4 Kf2 Ra4 Bg2+ Ka5 Rb7 Nf3 Kg3 Rg1 h1R Ne5 h2 Nf7 Kf3 Nd8 Rbb2 Re1 Rf1 Qc2 h1R Rc1 Rc7 Kb6 Rc4 Bd6 Rhg1 Be5 Ng5 Qb1 Rh6 Qd3 Nh7 Qd6 Rb1 Ne4 Re6 Bh8 Re5 Qc6 Rd5 Qd6 Rdd2 Qh6 Rdb2 Nf6
3B1q2/bB1N1qB1/2BrN3/pR1PqB2/r1k1b2b/8/1q1R2NQ/2b2KBn b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Nd7 axb5 Ndf6 Bg2 fxg4 Bf1 g3 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Ba3 Nc3 Bc5 Nb1 Bf8 d6 Kd7 e4 Ke6 d4 c5 b4 a5 g6 h5 g7 f5 d7 g2 e5 Kd5 e6 g3 e7 c4 e8B f4 b6 c3 b7 h4 b8N h3 b5 h2 b6 c2 b7 f3 Na3 Rh4 Rb1 Ne7 Bh6 c1B Ne2 g1B Bh3 g2 Nc2 Ra6 Qd2 Nf5 g8B+ Re6 Bg7 Be7 Qh6 Ng3 Qh7 Qc7 d8B Qe5 Qh8 Beg5 Bh7 Rd6 Be4+ Kc4 d5 Ba7 Ncd4 Kc5 Bc6 Bf5 Nf4 g1Q+ Bf1 Qg2 Ba6 Qa2 Rg1 h1Q Ng2 Rf4 Qh2 Bh4 Rb6 Qb2 Rb5+ Kc4 Ne6 Kc3 Nd7 f2+ Kd1 Rg4 Re1 f1Q b8B Bg1 Bbc7 Ba7 Bab7 Bg6 Bc2 Qf8 Bb6 Qhf1 Bg1 Q1f7 Re2 Ra4 Ke1 Kc4 Be4 Bf5 Rd2 Nh1+ Kf1 Bg6+ Bf3 Bf5 Bg4 Be4+ Bf5
nn3b1R/1R1Nb2n/4B1Br/5rbk/1Br1pR2/R2QK2b/1R5P/3Nn2R b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 c4 a5 b4 e5 f4 d5 f6 Kg6 f7 g3 b6 d3+ Kd2 g2 b7 d4 c5 e4 b5 a4 c6 a3 c7 a2 b6 Bh3 c8B Rh6 Qa4 Qg5 Qb4 Ra4 Ba3 Kh5 Bd7 Nf6 Qa5 Nh7 Qa6 Rc4 Nc3 Qg6 Nf3 g1N Ne5 Nf3+ Kc1 Be7 f8R Ne1 f5 d2+ Kd1 Bg5 Ke2 d1N f6 Ne3 f7 Nd5 Rh8 Nc7 f8R Na8 Rf4 d3+ Ke3 d2 Bb4 d1R Be6 Rd5 Nd7 Rf5 Nd1 Be7 Qa3 Bg5 Qd3 Be7 Rc1 a1B Rc3 Bb2 Rb3 Bbf6 Ra3 Bg5 Bf7 Nc6 b8R Bf8 Re8 Nb8 b7 Na6 b8R Bge7 Rb7 Rc8 Rd8 Nb8 Qb1 Rc7 Be6 Qg2 Bb3 g5 Nb6 g4 Bfc4 g3 Rd2 Qg1+ Rdf2 g2 Qd3 Rcc6 Bg8 Rc1 Bbe6 Rc4 Nd7 Qf1 Rb2 Qg1+ Ke2 Qb6 Bd5 Qg6 Bgf7 Bg5 Bde6 g1B Kd2 Bgc5 Ke2 Bcd6 Ke3 Bde7 Bxg6+
1BbK1R2/RRn1Npq1/3PN3/n1qnb3/R3r2p/R1B5/1rR1q1Q1/2B4k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 g6 h4 Bd6 h6 Bb4 h7 Bf8 h5 Nd7 h6 Nb8 Bh3 Ba6 Bg4 Bc8 Bh5 gxh5 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 Kg3 b4 Kg2 e4 a5 b6 c5 b5 c4 b7 h4 b6 a4 d6 f3 d7 f2 d5 f1Q d6 a3 Qe2+ Qf2 Nh3 c3 Rh2+ Kg3 Ng5 c2 Nc3 a2 Ne6 Qf3 Nd5 Ra4 Ne7 Qe8 d8R Qf1 Rd7 Na6 b8B Nc7 b7 Nf6 Qd2 Rg8 h8B Rc4 h7 Qg2 Rh3+ Kg4 Ra3 Bg7 Qf2 Qg1 Qg2+ Kh5 Kf5 Nfd5 e5 Re4 Ra4 Bf6 Bg7 Qe3 h8R+ Qh6 Ra3 Rf8 Rg8 Qe3 Bh8 Qc5 Rgg3 Rg8 Rgc3 Rg3 Rc4 Rb3 Rca4 Rb6 Rb1 a1Q Rb2 Na8 Rba2 Rb2 Rc7 Qeb5 Ra7 Qe2 R3a4 Bg5 R2a3 Bf4 Rc6 Nac7 Bg7 Nb4 Kf6 Bg3 Nd5 Kg4 Ke7 Rb3 Kd8 Rb2 Ne7 Nbd5 Bd2 c1N Bf6 Qb4 Rc2 Qc5 Bfg5 Nb3 Bc3 Na5 Bgd2 Qag1 Bc1 Ne8 Bc7 Qgd4 b8R Qg1 Rbb4 Qgd4 Bb8 Nec7 Rbb7 Qg1 Qf3+ Kh3 Qf2 Bf4 Qf3+ Qg3 Qg2+ Kg4 Ng5 Reb4 e6 Rc4 Nc6 Rd4 e7 Be5 e8R Re4 Qf2 Qg1 Ne6 Kh3 Qf3+ Kh2 Ne7 Qg7 Rf8 Kg1 Qf2+ Kh1 Qg2+
N4b2/2N1bkqn/1Bn2p2/N3n2b/N1nN1pN1/3Q2r1/RR3Pr1/1R1B1K2 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 a5 b4 axb4 Qc2 e6 Qc4 e5 Qf4 exf4 d4 c5 e4 g5 h4 b3 e5 c4 d6 g4 d5 g3 d7+ Ke7 b6 g2 b7 b2 h6 f6 h5 c3 e6 c2 h7 Qc7 d8N Ra3 d6+ Ke8 e7 Ra5 h6 Rc5 Ra2 Rh5 Nf3 g1N Nc6 Qd7 Be2 Qc7 d7+ Kf7 e8N Rd5 d8Q Kg6 Bd1 Qf7 Nfd4 Rg5 Be3 c1B Nc7 Nf3+ Kf1 Rg3 Nc3 b1N Na8 Nd7 b8N Nde5 Na4 Bg4 Na5 Bca3 Na6 Bae7 N6c7 Na3 Qd6 Nac4 Qa3 Qg7 Qd3+ Kf7 Rb2 Bd8 Ra2 Ne7 Rb2 Rg8 h8R Qg5 h7 Rg7 Rg8 N7c6 h8N+ Ke7 Ra2 Bh5 Ng6+ Kf7 Rh8 Bde7 Rh7 Ba3 Rh8 Bfe7 Rb8 Qh6 Rbb2 Ng5 Nc2 Bab4 Bb6 Nh7 Nd4 Rg2 Nh4 Rg8 Nhf3 R8g3 Nh2 Qg7 Ng4 Bbd6 Ke2 Bf8 Re1 Bfe7 Kf1 Bb4 Bb3 Bf8 Reb1 Bbe7 Bd1
1r2k3/n1pqN1p1/5N2/1n3Nn1/Nn1qB3/r1P2BR1/4bQRB/N1K2Nb1 b - - 0 1 legal: proof: b4 a5 g4 f5 e4 h5 exf5 hxg4 d4 e5 dxe5 b6 a4 b5 axb5 axb4 Kd2 d5 h4 d4 f4 g3 b6 d3 c3 g2 b7 b3 f6 b2 e6 Ne7 h5 Nbc6 b8N Nb4 f5 Ng8 e7 Kf7 h6 Ra2 h7 Nc6 Na3 b1Q+ Nc2 Qb6 Qe2 Qd6 Rh3 Qb7 Rg3 Ra7 Nf3 g1N Nh2 Qd5 Ra2 Qb2 Na6 Bb7 Qf2 Qc5 Bg2 Qcb6 Nc5 Nb4 Na4 Qb1 Be4 Qc6 Na1 Ke8 Nf1 Ba6 Kd1 Qb2 Bf4 d2 Be5 Nf3 f7+ Kd7 f6 Nd4 Bf4 Nb5 e8B+ Kd8 Bd7 Bc5 f8N Ne7 f7 Nc8 Bg4 Qd7 Ng6 Rg8 f8N Ke8 h8N Qc2+ Ke2 Qcd3+ Kd1 Q3d4 Bgf3 Ra8 Be5 Nca7 Ne7 Rb8 Nf7 Bb6 Ke2 d1N Nh6 Rh8 Nhf5 Rh4 Qh2 Nf2 Nh7 Nh3 Qf2 Ng5 Rd2 Bc5 Kd1 Rh6 Kc1 Rhb6 Rg4 Ra8 Re2 Rbb8 Nf6+ Kf8 Bb7 Nc8 Qh4 Qf4+ Kb2 Na3 Reg2 Be2 Nb6 Bg1 Qf2 Qfd4 Bh2 Nb5 Bbe4 Ra3 R4g3 Nca7 Kc1 Kf7 Na4 Kf8 Nfg8 Ke8 Nf6+
2QnbB2/1N4pB/2qB1P2/5R1B/3B1qrr/1pB1N1R1/3rk3/Kb1brN2 b - - 0 1 illegal: No proof kernel
B3n3/1PN2nR1/5q2/pb3n1K/Bkr1N3/1q5B/RBBBpQ1r/1q4qN b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kf2 h5 Kf3 d5 b4 Kd7 c4 Kd6 b6 a5 g7 e5 g6 h4 Kg4 d3 c5+ Kc6 b5+ Kb7 Qe2 h3 Nc3 h2 Bg2 e4 Bb2 f3 Ra2 f2 Nh3 f1Q Nf2 e3 Rg1 h1Q Nce4 Qh2 Nh1 d4 Qf2 Nd7 f6 d2 f7 d1N f8N e2 Ne6 d3 Nc7 d2 Bh3 Nh6+ Kh5 Rb8 g8B Nf7+ Bh7 Ne3 g7 d1Q g8B Qf6 Rg7 Qhg1 Bg2 Ra8 Bh3 Nf5 c6+ Kb8 b7 Qb3 Bg2 Qb1 Bf3 Nfe5 Bc4 Nf7 Bd3 Ra6 Bc2 Rb6 Bd1 Ka7 Bc2 Qa3 Ba4 Qb3 Qg2 Ra6 b8B+ Kb6 Qf1 Ra7 Bg2 Ba6 Qf2+ Qe3 Neg3 Kc5 b6 Kc4 Ne4 Kb4 Nc5 Ng5 Na8 Qd8 c7 Nh6 c8B Rc7 Kh4 Bb5 Bhc2 Nf6 Bf3 Rc6 Bf4 Ne8 Nc7 Qb3 Bfe4 Qd4 Bd2+ Qdc3 Bd5 Ngf7 Ne4 Rc4 Ba8 Rh7 b7 Rh8 Bh3 Rh7 Bg2 Nf5+ Kg4 Rh6 Rg8 Rh2 Rg7 Qgf1 Bh3 Qg2+ Kh5 Qgg1 Bf4 Qf6 Bd2+
2R2R2/R1K2R1r/1nN5/2q1Npp1/2b1Rr2/P1r4p/kn1Qn3/b1B1N1RB b - - 0 1 legal: proof: c4 a5 g4 f5 h4 g5 b4 axb4 h5 d5 cxd5 Qd6 f4 Qg6 hxg6 e6 gxf5 Be7 f6 Bf8 f5 exf5 Kf2 Kd7 Kg3 Kd6 d4 h5 e4 c5 f7 b5 a3 b3 g7 c4 Qd2 c3 Bg2 c2 Nf3 h4+ Kf2 b4 Ke3 b2 Ne1 Nf6 g8R b3 Rg7 Nbd7 Kd3 Be7 Kc4 Nh5 Kb5 Nb6 f8R Ra4 Rgf7 Be6 Rg1 h3 Bh1 Nf4 e5+ Kc7 Ra8 Ne2 d6+ Kd7 d5 Rh7 Rg4 Rc4 Re4 Rc3 Rff8 Bd8 Ra7+ Bc7 Ka6 Bg8 Kb7 Bd8 Qf4 Bf6 Nd2 b1N Nc4 b2 Qe3 Nd2 Rf7+ Be7 Qf4 b1R Qf2 Rb4 e6+ Kd8 d7 Bf6 Ne5 Ndc4 Qd4 Nb2 Qd2 Bg7 Rf8+ Ke7 d8R Bf6 Rc8 Kd6+ Rf7 Bg7 Rcf8 Kc5 e7 Bh8 e8R Bf6 Rg4 Rf4 d6 Kb5 d7 Bg7 Rf6 Bc4 d8N Kc5 Ndc6 Kb5 Na5 Ka4 Nac6+ Kb3 R6f7 Bf6 Rb1 Ka2 Kc7 Bg7 Rc8 Bh8 Qd4 Bf6 Be3 c1Q Qd2 Rf1 Re4 Rf4 N1d3 Qg1 Rf1 Bg7 Ne1 Qf2 Rg1 Bf6 Qc1 Bh8 Bd2 Qc5 Qd1 Bf6 Bc1 Rg3 Rb8 Nd3 Ng4 Ba1 Rbc8 Nb2 Qd2 Rc3 Ne5
4B1Br/RR6/Q1P3n1/N4pK1/1p1kpRRn/1b3NRr/1Nq1rRb1/2n5 b - - 0 1 legal: proof: d4 a5 b4 axb4 e4 f5 exf5 c5 dxc5 e6 f6 Bd6 f7+ Ke7 f8N Ke8 h4 Ra4 f4 Nh6 g4 Ra7 g5 Qf6 g6 Ke7 f5 Ra8 Bb2 Bf4 Bd4 Bg5 hxg5 Ng8 Bb2 Qf7 Be5 Qe8 f6+ Kd8 f7 Ke7 Bb2 Qd8 Bf6+ gxf6 Kf2 h5 Kg3 b5 Kf4 d5 a4 b3 c4 b2 a5 b4 g7 d4 g6 d3 c6 Kd6 c7 Kc5 a6 h4 a7 d2 Rh3 Qd3 Nd7+ Kd4 f8R Nh6 g8R Rh7 g7 Qc3 c5 Rh8 Rg3 h3 Nb6 h2 Qe2 d1B Nd2 h1R Qa6 b1N Nbc4 Rh3 Nb2 Nf5 Ndc4 Nd7 Ra2 Nh4 Na5 Qc2 Bb5 Ne5 Be8 Nd2 c6 Nb3 Rg4 Rb8 a8R Nc1 Ra7 Bf3 Rf7 Bg2 Re7 Bd7 c8R f5 Rd8 Neg6+ Kg5+ Ke3 Nf3 e5 Rf4 Be6 Reb7 Bb3 Rdd4 Rd8 Rc4 Rd2 Rg4 Rf2 Rcf4 e4 Rf8 Qc3 g8B Re2 Rff7 Qd2 Rfd7 Qc2 Rd2 Re1 Rf2 Re2 Ra1 Nd3 Rg1 Nc1 Nh2 Kd4 Rg3 Bf3 Rgg4 Bh1 R1g3 Bg2 Nf3+
1b1n2nN/3rqq1P/3Np2R/K2N2NN/1n1Bqp1k/1p3r2/4BQ2/4BR1N b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 g5 d4 gxf4 e4 h4 e5 b6 d6 h3 d5 Kd7 b4 a5 gxh3 axb4 h4 Ke8 h5 Bg7 Nf3 Kf8 Ng1 Bd7 e6 Bh6 exd7 Kg7 Qd2 Kf6 Qd1 Bf8 Kd2 Kg5 h4+ Kf6 a4 c5 a5 b3 Kc3 b2 a6 f3 h6 c4 Kb4 f2 h5 c3 h7 e6 a7 b5 h6 c2 Qd4+ Kg6 Nc3 b1N Be2 f1Q Ne4 f5 Nf6 f4 Be3 Kg5 Nh5 Qc7 d8N c1Q Nb7 Q7c5+ Ka5 Qcd1 d7 Qc8 d8N b4 d6 b3 d7 Nc3 Nd6 Qf3 N8f7+ Kg4 d8B Na2 Rh2 Qb7 Bh4 Qe7 Be1 Nb4 Ng5 Qc1 Qb6 Qcc7 Bd4 Qb7 Qc5 Qf7 Qc2 Qbe7 Qd2 Bg7 Qe3 Be5 Qf2 N8a6 Rd1 Rd8 a8N Rd7 Nb6 Nc5 Nd5 Nb7+ Ka4 Nd8 Ka5 Nf6 Rb1 Rg8 h8N Rg6 h7 Ng8 Ng3 Rg7 Rh6 Rg6 Nh5 Rg7 Bd3 Qe4 Ne2 Rg6 Neg3 Kh4 Be2 Rg7 Nb7 Bb8 Ra1 Rc7 Nd6 Rc3 Bd2 Rd3 Rf1 Rf3 Be1 Qff8 Bd1 Qee8 Bec3 Rd7 Be2 Qef7 Be1 Q8e7 Nh1+
3b1R2/Np1PrRrR/1Rpk1K2/1R2p1QR/b2B1n2/8/brr4N/2q3NB b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ne5 h5 Ng6 hxg6 Ra8 Ke2 Kd7 Kd3 h5 Kd4 h4 Ke5 b3 d4 e6 a4 h3 d6 f3 f6 b2 a5 h2 f7 f2 g7 Ra7 a6 Qe7 d5 Nh6 g8R Ra8 g6 Qh4 g7 Nf5 a7 Rb8 a8R Qh3 Bg2 f1R Kf6 e5 Qg4 Rh5 R8a6 Rf4 Be3 Rc4 Qg5 Rc2 Nd2 b1B Rh8 Ba2 g8R Ng7 Bd4 Qa3 Rb1 Rh7 Ndf3 Qc1 Rb5 Ne6 Rab6 Rg7 Rh5 Nf4 Rgh8 Ra8 R8h7 Ra3 R7h6 Rb3 Rh7 Kd8 d7 Rbb2 Ne2 Ba3 Rf1 h1R Neg1 Rh2 Bh1 Be7+ Kf5 Bf6 f8R+ Ke7 Rf2 Rh3 Nh2 Rhc3 Rf1 Rc6 Rf2 Re6 d8N Bd7 Nc6+ Kd6 Na7+ Bc6 Rf3 Bd8 Rf2 Ree7 Kf6 Kd7 Rb4 Ba4 R4b5 c6 Rf7 Kc7 d6+ Kb8 d7 Kc7 Rh8 Kd6 Rhf8 Re2 Rf3 Rec2 Rfh3 Rg8 Rhh7 Rg7 R3h5
brQ5/2p1RB1p/2r2nRR/N2R1br1/1n1n2NN/1R3rkR/2pP4/B6K b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 g4 b5 axb5 dxc4 Ra2 f3 Ra5 Be7 Ra1 Bf8 h3 g5 Qa4 f5 Qb3 f4 Qd1 Qd7 h4 Qf5 gxf5 g4 Ra5 Bh6 Ra1 Bg5 hxg5 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Kf7 b4 a5 e4 a4 g6+ Kf6 g7 Ke5 f6 c3 b6 c2 f7 a3 f8N a2 b7 Nd7 b8R Nb6 b5 Ra4 Rh6 Rb4 Na3 Bf5 Bb2+ Rd4 Nh3 g3+ Kg1 f2+ Kh1 f3 Rd8 Bg4 Ng6+ Kf6 e5+ Kf5 e6 Rd7 e7 Rd6 e8R Nd5 b6 Rf6 b7 Nb4 b8R Rc6 Re7 Nf6 Bc4 f1B g8R f2 Bf7 Bd3 Rb1 a1N Nc4 Nb3 Na5 Nd4 Ba1 Bge2 Rb6 Kg4 Rd5 Bf5 Qf1 Bd1 Rb3 Bf3+ Qg2 B3e4 Rge8 Bf3 Nh4 Rf8 Re2 B3e4 Re7 f1R+ Ng1 Rf4 Nh3 Rf3 Nf2+ Kf4 Ng4 Rb8 Qh3 g2+ Kh2 g1R Ra6 Rg2+ Kh1 Rgg3 Rh2 Rg2 Nf2 Rg5 Ng4 Rcc3 Rae6 Rc6 Red6 Nh5 Rdg6 Nf6 Qf1 Kg3 Qa6 Bc8 Qa8 Bb7 Qa6 Ba8 Qc8 Bf5 Rh3+
BRrRr2R/B2Pk3/7r/p2K2Q1/1r1pr3/1RpR1r2/n1q2BN1/1NR1n3 b - - 0 1 legal: proof: f4 e5 a4 exf4 c4 g5 h4 gxh4 c5 b5 axb5 Bb7 Rh3 Ba6 Rh1 Bc8 b6 d5 d3 Ba6 Ra5 Bd6 cxd6 c5 Ra1 c4 Be3 c3 Bc1 Bc4 dxc4 Qe7 Ra3 Qc7 Ra1 Qd8 Kf2 h5 Kf3 a5 g4 f5 e4 d4 b4 h3 b7 h4 g5 h2 b5 h3 c5 Nf6 g6 Qc7 e5 Rh7 e6 Qb6 e7 Qa7 b6 Rh8 c6 Nbd7 b8B Nd5 g7 Nb4 b7 Na2 c7 Nc5 Be3 Nd3 g8R+ Kf7 Rg4 Rc8 e8R Qc5 d7 Ne1+ Kf2 f3 Rd8 f4 Ne2 Qe7 Qc1 Qe4 Bg2 Ke7 Ba7 Qc2 Rg3 Rab8 Rg1 h1R Rh8 Re8 c8R h2 Rd8 Rc8 Rf1 Rg1 b8R h1R Qd2 Rh6 Qc1 Nb4 Ra3 Na2 Rab3 Rgh1 Qd2 R1h4 Bh1 Ng2 Rc1 Ne1 Kf1 f2 Ba8 Nd3 Kg2 f1R Rh3 f3+ Kg3 f2 Kf3 Rh1 Nf4 f1R+ Ke4 Rf3 Bf2 Ne1+ Kd5 Rh2 Ng2 Re4 Qf4 Rb6 Rg3 Rhh6 Qg4 Rb4 Qg8 Rff4 Rd3 Rf3 Qg5+
7q/2Q1qkrB/2rB3R/K1Bn1b2/pp3NpP/1pB1NN1r/2p5/R3B2B b - - 0 1 illegal: No proof kernel
1n4R1/1qBk1q1b/b1rb3Q/1BB1rNN1/1B5K/n4qP1/1rR2bBR/3n2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 c5 e4 h5 b4 f5 e5 a4 e6 a3 b6 a2 e7 c4 b5 c3 g3 f3 b7 c2 d6 h3 b6 h2 d5 h4 Bb2 c1B Ba6 h3 Ba3 f4 Nd2 Qc7 Bf1 Bf5 Bb4 Bh7 Bg2 Ra6 Ne4 Kd7 Ne2 Nh6 Nd4 Nf5 Ng5 Ne3 Qd2 Nd1+ Kf1 f2 Nf5 Bb2 Rc1 a1N Rc2 Bd4 Ke2 f1B+ Kf3 Be3 Kg4 f3 Kh4 f2 Qc1 Be2 Qd2 f1Q e8B+ Kd8 d7 Bf2 Qe3 Bd6 Qe6 Ra2 Qh6 Rb2 Bc5 Ba6 Bb4 Nc6 b8B Qb7 Ba7 Nb8 Bc5 Rg8 Bb4 Rg6 Bc5 Qc6 b7 Re6 Bb4 Re5 Bac5 Kc7 d8R Qd7 Kh5 Qf7+ Kh4 Qe2 Bb5 Qf3 Rf1 h1R Rg8 h2 Re1 Ne3 Ree2 Rc1 Red2 Nd1 Re2 Nc6 b8B+ Kd7 Bc7 h1Q+ Bh3 Bd4 Rh2 Bg1 Bg2 Bf2 Rd2 Nc2 Re2 Na3 Rc2 Bf8 d6 Be7 Bd3 Nb8 B7b6 Kc6 d7+ Bd6 d8B Kd7 Bdc7 Qb7 Bgf1 Qhf3 Bg2 Be1 Bg1 Bf2 Bd4 Qe3 Bdc5 Qef3 Rd2 Rc3 Rc2 Rc4+ Bd4 Rc3 Bb5+ Rc6 Bdc5
2bq1B1r/1q1BBn2/1b6/1Bb2R2/qn2PN2/1RqB1rN1/1rB3n1/k1KN3Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 c3 Ke7 Kd2 Ke6 b4 Kd5 g4 Kc4 b6 f5 b5 h5 e3+ d3 g6 a5 g5 d5 b7 d4 b6 a4 g7 f3 g6 f2 Ne2 a3 Rg1 h4 Rg5 h3 Ng3 a2 Ba3 h2 Kc1 Na6 b8N h1Q b7 f4 Nc6 f3 b8B Nh6 Nb4 Nf7 Bd6 Rb8 Nd5 Rb5 Be2 f1N Nf4 f2 Rh5 Qf3 e4 Ne3 Qh1 Kb3 Bf1 Qd7 Rf5 Ng2 Bac5 Qb7 c4 Be6 Nc3 Rb6 Be2 d2+ Kd1 Rb4 Rb1+ Ka3 Kc2 f1R Rb2 a1B Bd1 Nd8 g8B d3+ Kb1 Qe3 g7 Rf3 Bf7 Be7 Be8 Nf7 Bb5 Bd8 Bf8 Bb6 Bcd6 Qd4 c5 Bc8 Be2 Rb3 Bde7 Nb4 Qc1 d1Q g8B d2 Bec4 Nh6 Bge6 Qd8 Bd3 Nf7 Bd5 Qe2 Qh1 Qf2 Bd5c4 Qfd4 Ba4 Qe5 Bcb5 Qed4 Qc1 d1Q c6 Be6 c7 Bc8 Nf1 Qc5 Ng3 Qcc6 Ba6 Qd2 Qh1 Qb5 Bc2 Qa5 Bc6 Qa4 Nd1 Q2d4 Kc1 Qc4 Rb1 Ka2 Bd7 Bad4 Bab5 Qc3 Bd3 Bdc5 B7b5 Ra3 Rb3 Ka1 Be8 Ra2 Beb5 Bd7 c8B Be6 Bcd7 Rb2 Bdc6 Bc8 Bd7
K2n1RN1/2BQR1rB/1brqbqN1/2q1PR1R/1rb1k3/8/1n3Nnn/2RR4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 f5+ Kd3 f3 Kc4 a4 e4 h3 b6 f4 Kb5 h2 b7 h4 g5 a3 g6 f2 g7 a2 Be2 f1N Na3 f3 Qe1 c4 Nh3 c3 Bd3 f2 Qd2 Nh6 g8N Nc6 b8R c2 Rb7 Ng4 Re7 Ra4 Qd1 Be6 Bf4+ Nge5 Rc1 a1Q Qd2 Qc8 Kb6 Rh7 b5 Ne3 Rhf1 Qd8+ Kb7 h1Q b6 Rb4 Rfd1 f1N Nf2 Qd7+ Ka8 h3 b7 h2 b8R Nd8 Rb5 Rg7 Ra5 Qg1 Nc4+ Kc7 d6+ Kc6 Bg3 h1B Bf4 Qc7 d7 Qd6 Bg3 Nh2 d5+ Kc7 Rf1 Ng2 Bf4 Qd4 Rfd1 Qf1 Bg3 Q6c5 d6+ Kc6 Rb5 Qe2 Rf1 Qf3 Qd1 Qf6 Bf4 Nb7 d8R Qdd5 d7 Qdd6 Rb8 Nd8 Qd2 Neg4 Be5 N4e3 Bg3 Nd1 Ne5+ Kc7 Bf4 Nb2 Ng6 Kc6 Ra5 Bc4 Rbb5 Be6 Rcd1 c1R Rfe1 Qcd4 Rh5 Rc3 Raf5 Q4c5 e5 Kd5 Be3 Qcc7 Ba7 Rc6 Bb8 Qc5 Rc1 Q7d6 Bc7 Kd4 Qd1 Bc4 Qa4 Be6 Red1 Ke3 Bb1 Bc4 Nd3 Ke4 Bc2 Be6 Qb5 Bc4 Nf2+ Ke3 Qb7 Qb6 Re6 Ne1 Bd3 Bhd5 N6e7 Nf7 d8R Ng2 Rf4 Qd7 Qc8 Qd4 Re8 Nd8 Bh7 Qb6 Ng6 Bc5 Nf8 Qd6 R6e7 Be6 Qd7 Qb5 Ng6 Bb6 Rff5 Qbc5 Nd3 Kd4 Rf8 Ke4 Nf2+
1r1R1Q2/k5KP/3nb1B1/R2B2b1/1R1rq3/3N1qnb/rB1NRq1R/3R1nq1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 Kc7 h4 Kb6 h5 g5 h6 a5 h7 a4 e5 f3 Kg3 c4 e6 c3 e7 c2 e8B f4+ Kf2 g3+ Ke1 f2+ Kd2 a3 Kd3 g4 Ke4 a2 Ke5 f3 d6 g2 d5 g3 d7 Na6 d6 Nc5 Bc4 f1N Rh2 f2 Nh3 g1Q Bb2 c1Q Bd5 g2 Nf4 Nf6 Bg6 Be7 Nd2 Nh5 Qf3 Ra4 Nd3 Qd1 Qf8 Qe8 d8R Ka7 d7 Ne4 Kf5 Bg5 b6+ Kb8 b7 Ka7 b5 Rd4 b8R Qf3+ Nf4 Qe7 Re8 Qb4 Rd1 a1R Re5 Ra2 b6+ Ka6 b7 Nhg3+ Ke6 Nd6 Re2 Ka7 Nd3 Qc4 Ke5 Qc6 d8R Be6 Rbc8 Qc2 b8R Qh1 Rc5 g1Q Rb4 Qhg2 Rcb5 Qc6 Qh6 Qb7 Rd7 Rb8 Qf8 Ne3 Bb3 f1B Rd8 Q2f2 Rc5 Bfh3 Rcb5 Bf4+ Kf6 Qbe4 Kg7 Bg5 Bd5 Nef1 Ra5+
QB3rB1/1bP1n3/b2Br2k/KRqq1q2/N5bB/nB2Nr1n/1BR2b2/4R3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kg7 g4 d5 c4 e5 b4 h5 f6+ Kh6 f5 a5 c5 d3 Kc3+ d2 b6 e4 f7 a4 c6 h3 f6 e3 b7 h4 b5 d4+ Kc4 d3 c7 e2 b6 e1R Kb5 h2 Be2 h3 Bf3 a3 Bd5 a2 Qf3 Ra3 Nc3 Nd7 b8B Ne7 b7 Re6 Bb2 d1Q Rb1 a1Q Na4 d2 Ne2 Ne5 Re1 h1B Nd4 h2 Ka5 Qc2 Rbc1 d1B Bb3 Qf5 Rc2 Qc1 Qg2 Bg7 f8B Qe3 f7 Nc4+ Kb4 Qdd5 g5+ Kh7 g6+ Kh6 Qe4 Bg4 Qf3 Bg2 Qe4 h1N Qf3 Ng8 Be7 Nf2 f8B Nh3 Bh4 Bh1 Bc5 Ne7 Bd6 Rf8 Qe4 Be5 g7 Bg3 g8B Bf2 Qf3 Qde5 Qc6 Qd5 Qa6 Bg2 Qa8 Bf1 Rcc1 Bfe2 Nc2 Qa7 Ne3 Qac5+ Kc3 Bf1 Rc2 Bd3 Ba7 Be4 b8R Ba6 Rb6 Qd1 Rb4 Beb7 Rb5 Qdd5 Bb8 Ra1 Ree2 Rf1 Re1 Na3+ Nc4 Qb6 Kb4 Qbc5+ Ka5 Rg1 Rf1 Rg3 Re1 Rf3 Ne3
rr2R3/1b1b4/B1Rn4/1R2rr1q/n3R1N1/2BQ1r1r/B1n1P1k1/b1NK2RR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Ke7 g4 Kd6 b4 a5 b6 h5 b7 f5 b5 c5 b6 f3 g5 c4 g6 f2+ Kd2 f4 g7 c3+ Kc2 a4 Qd2 a3 Bh3 f1R Bd7 h3 Bc6 h2 Qd1 a2 Na3 h4 Bb2 h3 Qd2 f3 Qd3 f2 Bb5 Qh4 Ba6 Qh5 Rb1 Nd7 b8R Nh6 g8B Nc5 b7 Na4 Nf3 Bd7 Re8 Nf5 b8R Bg7 Ne1 a1N+ Kd1 Nc2 Rb5 Be5 Rg1 h1B Be6 h2 Nc4+ Kc7 Ne3 Kd6 Re7 Rhb8 Ng4 Bg2 Ba1 h1R Bg8 Bh8 Re4 Rh3 Rh1 Rg1 Bb2 f1R Ra1 Rff3 Rc1 Kc7 d6+ Kc6 Ba2 Rgf1 Rb3 Be5 d5+ Kc5 Rb1 Be8 d7 Nd6 d8R Bd7 Rb6 Rf5 Rf8 R1f3 Rg8 Qh6 Ne3 Ne8 d6 Bc8 d7 Nd4 d8R c2+ Kc1 Rf2 Bb5 Bd7 Reg4 Qh5 Ba6 Bb7 Re4 R2f3 Rgg1 Nd6 Re8 Bf6 Kd2 c1R Qb3 Rc4 Ba1 Nc2 Ng4 Rd4+ Kc1 Rdd5 Rb2 Bd4 Kd1 Rde5 Rb1 Bb2 Qe3+ Bd4 R1b3 Kd5 Nd3 Bb2 Nc1 Bc3 Rc4 Bd4 Qd2 Ke4 Qd3+ Kf4 Rcc6 Bc3 Rb2 Bd4 R6b5 Bc3 R2b4+ Bd4 Rf1 Kg3 Bb2 Bc3 Re4 Kg2 Ba1 Bd2 Bd4 Bc3 Re1 Bb2 Bc3 Ba1 Reg1#
Nq1bN3/R4B1r/N1Q2bbn/1NRr3n/KN3nBn/6r1/5NPr/B1n4k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Ke7 b4 Kf6 d4 Kg5 Kd2 f5 Kc3 a5 Kb3 h5 e5 c5 d6 h3 e6 Kh4 d7 Kg3 b6 a4+ Ka3 c4 d5 h4 d6 f3 b5 f4 e7 c3 e8B c2 b7 f2 b6 h2 Bd2 c1N Ra2 h3 Bc4 f1N Bc3 f3 Nd2 f2 Bg6 Nh6 Bh7 Na6 b8N Rg8 b7 Nb4 Qc2 Be7 Ngf3 Nbd3 Nd4 Ne3 Bf7 f1N Na6 Nf4 b8N Nef5 Nb4 Ra5 Ba1 Rd5 N8a6 Nh4 Qc6 Qb6 d8N Qb8 Bb1 Bf5 d7 Bg6 Nb7 Bd8 Bf5 Rg7 Rg1 h1R Nb5 Kh2 N7d6 Ng3 Bg4 Ngh5 N2e4 Rh7 Rd1 Re1 Rd4 Kh1 Rc4 h2 Ne8 Re3+ Rc3 Rg3 Nf2+ Kg1 Qd6 h1R Qc6 Nfd3 Rcc2 Rh2 Rc5 Ndf4+ Rc3 Be7 d8N Bg5 Ne6 Bd8 Nd1 Kh1 Ne6c7 Be4 Na8 Bf5 Nd3 Bg6 Kb4 a3 Ka4 Rf3 Rc5 Rg3 Rb2 a2 Ndb4 Bb1 Re2 Bf5 Re7 Bg6 Bg7 a1B Ra7 Baf6 Bh8 Bg5 Ba1 Bgf6 Nf2+
R3n1r1/2Qb3K/Bb2R2n/1r3PN1/3kR1RB/R4bRr/q1b1b1Nr/n3N3 b - - 0 1 illegal: No possible last move, all moves rejected
1B2r1b1/Nk1bR1n1/3rP2K/1RrQb3/B1Rn4/1R2Rr1R/b2N2N1/2n2qr1 b - - 0 1 illegal: No possible last move
bR1B1nbN/qB1P2q1/1rr4n/Q2N1N1B/1N1bRr2/1K1NN1k1/3r4/6bb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 h5 g4 f5 b4 c5 e4 a5 e5+ Kc7 g5 a4 g6 a3 g7 h3 e6 Kd6 b6 f3 b5 f2 e7 f4 e8B f3 b7 a2 b6 c4 Nd2 h4 Qe1 h2 Rb1 h3 Bh5 Be7 Ne2 Nd7 b8N Qf8 b7 Nh6 g8N Ra6 Ng3 Rb6 Na6 Qg7 b8N Nf8 Bg2 f1Q Nb4 f2 N8a6 Be6 Nd3 Qg1 Nf6 f1R Nab4 Rf4 Ndf1 Bg8 Ne3 a1B+ Kc2 c3 Kb3 c2 Ngf5+ Kc7 Bb2 c1R Qd2 Qf2 Re1 h1B Re2 h2 Qe1 Rc4 d6+ Kb8 d7 Kc7 d8N Rcc6+ d5 Bc5 Ba3 Bad4 Nf7 Qg1 Be4 Bg2 Rbb2 h1B Qc3 Rh7 Nh8 Qa1 Rb1 Bf3 Bc1 Qa7 Qa1 Bfg2 Qa5 Bf3 Nc2 Bg1 Nce3 Bd4 Bd2 Qg6 Be1 Rd7 Bh4 Qg4 Rc2 Rd8 Rc4 Qg7 d6+ Kc8 Nfg4 Kd7 Nd5 Ke6 Nge3 Rd7 Nb2 Ke5 Bd8 Re7 d7 Ree6 Rcc1 Red6 Re1 Bfg2 Bd3 Bf3 Ba6 Ke4 Bb7 Bfg2 Bf7 Kf3 Bh5+ Kf2 Ne7 Kg3 Nd3 Rc2 Re2 Rdc6 Ree1 Rd2 N7f5+ Kh2 Ng4+ Kh3 Re4 Bf3 Nge3 Kh2 Nd6 Kg3 Ndf5+ Kh3 Ba6 Bb2 Rc4 Bh7 Nc7 Rg6 Ka4 Rb8 Nbc2 Ba8 Ncd5 Bg8 Re4 Bd4 Rb7 Kh2 Kb3 Rc6 Ncb4 Kh3 Rc7 Kh2 Rc8 Rbb6 Rb8 Kh3 Bb7 Kh2 Ne7 Kg3 N7f5+
3nq1r1/1Q1nBrb1/3nq1r1/N2B1b1R/1nrR4/b4BPN/1N6/1Nk2NKN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kd6 b4 Ke5 d6 Kd4 d7 f5 d3 h5 e5 c5 b6 a5 e6 f3 b5 h3 g3 h4 e7 f4 e8B h2 b7 a4 b6 a3 Be2 h3 Bg6 c4 Qe1 c3 Bf7 a2 Bd5 c2 Ba3 c1B Be7 Nc6 b8N Nf6 b7 Qe8 d8N Ra6 Nd7 Ba3 b8N Rg8 Nb7 Bg7 Na5 Nd8 Ne5 Nd7 Nac4 Rg6 Kf1 f2 Ncd2 Ke3 d4 Qf7 Nd3 Qe8 Bh4 Qe6 Na6 Qe8 Nb2 Qe6 Nc3 Qe8 Rd1 a1N Ncb1 Nc2 Nc5 Nb4 Nce4 Qe6 Ngf3 Qe8 Nfg5 Qe6 Rg1 h1N Rg2 h2 Nh3 Qe8 Rg1 Qe6 Kg2 f1R Be7 Nf2 Rh1 Ng4 Nef2 Ngf6 Na4 Ne8 Nb2 Ba6 Bef3+ Be2 Nde4 Nd6 Qc3+ Bd3 Ned2 Re1 Qc8 Bf5 Qb7 Re2 Bfe4 Re1 Nf1+ Ke2 Rd3 Rc1 Bf3+ Ke1 Bc6 Rc4 d5 Bh8 Rd4 Bg7 Rg1 Nb5 d6 h1R Ng5 Rh7 Bfd5 Ke2 Rh1 f3+ Kg1 Ke1 Rh5 Ke2 Nh1 f2+ Kg2 Ke1 Nh3 Ke2 Nd3 Kd1 Nb2+ Kc1 Bf3 Qe4 Bd5 Qe6 Ne3 f1Q+ Kh2 Ne5 d7 Qe1 Nf1 Nd6 Kg1 Bh6 Qc6 Rf7 Qb5 Bg7 Qb7 Ndc6 d8N Nd7 Qc7 Q1e2 Nb7 Nd8 Na5 Q2e4 Qb7 Qe1 Bh4 Qe8 Bf6 Q1e6 Be7
b5kn/N3b3/2nbr2Q/q1q1P1q1/NN6/1R2qBNR/1Kbr3N/1B2N1Bn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 h5 g4 a4 d6 a3 d7 a2 b6 f3 b7 f4 g5 f2 g6+ Kg7 d5 f3 d6 c4 e5 h3 b5 h4 b6 h2 Bg2 f1N Nd2 f2 Rb1 h3 Ndf3 Rh7 Qd2 Rh6 Rb3 Ng3 Kb2 f1Q Ne2 Nc6 b8N Be7 b7 Qf2 Ne1 Qe3 Bf3 Qc5 Na6 a1Q+ Kc2 c3 b8N Kf8 Nb4 Qaa5 g7+ Kf7 Qg5 Re6 N8a6 Nh6 Be3 Kg8 Bg1 Nf7 Qh6 Nh8 Kb1 c2+ Kb2 Qdb6 d8N Ra7 Nf7 Rd7 Ng5 c1B+ Kb1 Rd8 d7 Ba3 Ka1 Qe3 Nc5 Qbb5 Na4 Qbc5 Ka2 Ba6 Kb1 Bd3+ Ka1 Bc2 Ka2 Rc8 d8N Rc7 Ka1 Rd7 Ka2 Rd2 Ka1 Nd4 Ndc6 Bd6 Na7 Nc6 Ne4 Qg5 Nf2 Qce3 Ng4 Be7 Na6 Bac5 Kb2 Bcd6 Nb4 Qac5 Bf2 Qa5 Rf1 h1B Bg1 Bg2 Nh2 Nh1 Ng3 Qec5 Ng4 h2 Rf2 Qcb6 Re2 Qbc5 Ree3 Nf2 Rec3 h1Q Re3 Qhh4 Nh2 Qe4 Rec3 Nh1 Re3 Kf7 Rec3 Qee3 g8B+ Ke8 Bh7 Kf7 Bg6+ Kg8 Ka3 Bd1 Bb1 Bc2 Kb2 Nd4 Bg4 Ba8 Bf3 Nc6 Rc4 Ng6 Rh4 Nh8 Rh3
Kbb2B2/6qr/2RNN3/P2N1R1q/rNB1r2b/3N1n1Q/r1n2R1n/3N1k1b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 g4 e5 a4 b5 f6 h5 d6 c5 Kd5 Kf4 f7 c4 f3 Kg3 d4 Kf2 d7 e4 g5 h3 g6 h2 f4 b3 f5 c3 f6 c2 g7 b2 Qd3 e3 Nf3 h4 Nc3 b1N Ne1 b4 Rg1 e2 Qh3 b3 Ba3 Qe7 d8N c1R Nc6 b2 Nb4 Na6 Kc6 h1Q+ d5 Nh6 g8N Nd2 a5 b1R Ra2 Ra1 Rg6 Nf3 d6 Rh7 d7 Rc2 d8N Ng4 Nb7 Ngh2 Nd6 Bh6 f8R Qg7 f7 Bf4 Ne7 Rb2 Ne8 Bb8 Ned5 Ra7 Nd6 Re7 Rh6 Re4 Ned3+ Kg1 Rf6 e1B Nd1 Rg2 Rb2 Ra2 Rf5 Rgg4 Rd8 Bf2 f8N Bg3 Ne6 Rgf4 Qg4 h3 Qh5 Rh4 Rc2 Rhf4 Rg8 Bh4 Kb6 Rg4 Rc6 Rgf4 Ne1 Rg4 Bc4 Rgf4 Ned3 Kf1 Nc2 Nb4 Qh6 Bc7+ Ka7 Bb8+ Ka8 Rg4 Nce1 Nc2 N3b4+ Re2 Ned3 Re1 N1b2 Rea1 Nd1 Re4 Bb2 Ra4 Ba3 Ra2 Qe3 Qh6 Rg4 Qg1 Rg2 Qh5 Re2 Qg7 Rg2 Ng4 Qh6 h2 Qe3 h1B Qh6 Be1 Qe3 Nh2 Qh6 Qhg5 Qh3 Qh5 Na6 Bd2 Nb5 Rh8 Bf8 Bg5 Nd6 Rh7 Nab4 Bh4 Rf2+
1N2n3/qq5B/2P2NbK/N2rr2N/1N3rrb/B1Q2Rqk/1n2q2N/1nR4R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 b4 e5 c4 a5 g4 d5 c5 h5 b6 d3 Ke3 e4 b5 d2 b7 a4 b6 d4+ Kf2 d3 Ke3 h3 Ra2 h2 Rc2 a3 Ne2 h4 Qe1 d1R Qa5 a2 Ba3 a1Q Rc4 d2 Nc1 h3 Bd3 Rh5 Bc2 Ne7 Nb3 Nd7 b8N Qc7 b7 Qa2 Qb4 Ra4 Na6 Qd6 b8N Nd5+ Ke2 e3 Kf3 e2 c6 e1Q Na5 Be7 Qc3+ Qde5 Nb4 Qe2+ Kg3 Re1 Bd3 d1N Nd2 Nb2 Nf1 Rg5 Kh4 Rg6 Qc1 Nc3 Kh5 Nb1 Qc3 Rd1 Bc2 Rd5 Rc5 Rg8 Kh6 Qb3 Bd3 Ba6 Be4 Bd3 Rc4 Qd4 Rc5 Re5 Rc4 Qa7 g5+ Kf7 f6 Ke6 f7 Nf6 f8R Ne8 g6 Bh4 g7 Bc2 Na2 Qbb7 Bh7 Bg6 Nb4 Rd5 Rf5 Rf8 g8N Re5 Rg1 h1Q Nf6 h2 Nh5 Qhg2 Rh1 Qg3 Rc5 Rf7 Rc4 Rd7 Rf7 Rdd5 f5+ Kd6 f6 Ke6 Rc5 Kf5 Rf8 Kg4 f7 Rd2 Qd3 Kh3 Rc1 Rd1 Qc3 Rd2 Rh8 Rd4 f8N Rf4 Nfd7 Rg4 Rf8 Rf4 Rg1 h1R Nh2 Rd5 Rgd1 Re1 Ndf6 Rg4 N4a6 Raf4 Nb4 Qed3 Rf7 Ree5 Rh1 Qe2 Rd7 Rc5 Rd3 Rcd5 Rf3
4qNRQ/B1B1Bb1R/Bq1b1RB1/3B2k1/5q1n/1Ppr2rN/4rbn1/K4n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Ke7 d4 Kf6 Kd2 a5 Kc2 c5 g4 h5 b3 a4 Kb2 c4 e5+ Kg5 d6 f5 d5 h3 d7 a3+ Ka2 h2 d6 h4 e6 h3 e7 Nh6 e8B Qb6 d8R Be6 d7 Nc6 Qc2 Nd4 Rb8 Nf3 Qf2 Bd6 Bg2 Rg8 Qb2 Nh4 Nd2 f3 Qh8 f4 Bf1 f2 Bg6 f3 Re8 Ra7 d8B+ Re7 Bc7 N6f5 Rd8 Rgg7 Rg8 Ne3 Kb1 Bf7 Ne4+ Kf4 g5 a2+ Kb2 Re8 Be2 f1Q Nf6 f2 Nh7 Re4 Rb1 a1B+ Ka2 Re8 Ba3 Neg2 Nf8 Bd4 Re1 c3 Ka1 Re4 Bc4 Qe2 Rf1 Re3 Bd5 Rd3 Bb7 Qe8 Ba6 B6e5 Be7 Bd6 Re1 f1N Re6 Kg4 Rf6 B4c5 Kb1 Bf2 Ka1 Qd4 b6 Qf4 Be4 Rg6 b7 Rg7 g6 Kg5 b8B Qf3 Ne2 Qf4 Rg1 h1R Ba7 Rh2 Rh1 Ne1 Bf5 Rg2 Be4 h2 Ng1 Rgg3 Nd7 Rh7 g7 Neg2 Bg6 Rh6 Rf8 Rh7 g8B Rg7 B8h7 Rge3 Rg8 Re2 Be4 Kh5 Nf8 Rgg3 Bhg6+ Kg5 Bd5 Re5 Ne2 Ree3 Rg1 h1Q Rg7 Re5 Rg8 Qh3 Rh1 Qe6 Ng1 Re2 Rh2 Qee3 Rh3 Qb6 Rh2 Nf3 Rh7 Nfh4 Nh3+
1b5r/R6R/PR1B2rB/nN1qq1B1/2k3BK/Bp1bb2Q/n1q2n2/1BN4r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 Kf2 Kd6 a4 Kc5 g4 h5 f6 b5 f5 e5 g5 e4 a5 e3+ Kg2 e2 Kh3 e1Q d6 b3 d7 b4 f7 b2 f6 b3 g6 Ba6 g7 Bd6 f8B Ne7 g8B Bd3 f7 Kc4 Nc3 b1Q Bh7 c5 Be2 Nbc6 Nb5 Nd5 Bh6 Ndb4 f8B Ra6 Bg4 Bb8 Qf3 Na2 Bd6 Qe5 Ne2 Qc2 Ba3 Qg8 d8B Qgd5 Bdg5 Rb6 a6 Na5 Rad1 Rc6 Nc1 Rb6 Kg2 h3+ Kf2 h2 Qh3 h4 Be4 Be2 d4 Bd3+ Kf3 Rb7 Rd2 Rg7 Rf2 Rg6 Kg2 Qb1 Rf7 Qc2+ Kf3 Qde6 Rh7 Q6d5 Rd1 h1N Rd2 Qc6 d5 Qa8 Rh2 Nf2 Ra7 Qb7 Bdf8 Qc6 d6 Qa8 d7 Qad5 Qg2 h3 d8R Qde6 Rh1 h2 Rd6 Q5d5 Qh3 Qee5 Rg1 h1R Rb6 Qcc3 Bd6 Qc2 Nc7 Kd4 Rg2 c4 Rh2 c3 Nb5+ Kc4 Kg2 Qe7 Kg3 Qee5+ Bf4 Qb2 Bf5 c2 Kh4 Qbc3 Bg5 Qb2 Ne2 c1B Be4 Be3 Nc1 Be2 Bb1 Qc2 Rg2 Bd3 Rg3 Qf5 Rf3 Qfe4 Rff7 Qee5 Rh7
6NN/2NB1k1P/1q5B/Nb3nK1/bBpb3N/2RQ3q/1R1r2Nq/1rr1n1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 g5 d4 c4 e5 a4 e6 f3 Ke3 f2 b6 a3 b5 g3 d6 a2 h5 g4 Kf4 g2 d7+ Ke7 d5 g3 h6 Qc7+ d6+ Kf6 d8N Qc6 d7 Bb4 b7 Ba3 h7 Bb4 b6 Bf8 e7 Ra3 Ne2 g1Q Nf7 g2 d8B Nh6 Rh2 Bd7 Qd3 Na6 b8N Rb3 b7 Bg7 Ba5 Rd8 Nh8 Qb6 Bb4 Nc5 Na6 Bb5 Nd2 Rb1 Ng6 Kf7 e8N Bd4 Kg5 f4 b8N f3 Nef4 Nf5 Nac7 Qh1 Nf6 g1N Rg2 Qh2 Nc6 Rd5 Be2 f1B Na5 f2 Bg4 Be2 Nf3 f1Q Ng8 Bd1 Rb2 Bda4 Nfh4 Qfh3 Nfg2 Rd7 Be3 Rc1 Rab1 a1R Rc2 Rd6 Rbb2 Rab1 Rc3 Rd5 Kh5 Rd6 Bh6 Rd7 Kg5 Rd8 Qe2 Nd3 Qe3 Ne1 Qd3 Ne3 Bd7 Nf5 Bc6 Re8 Bd7 Re2 Bc6 Rec2 Bd7 Rd2 Nh8+
1r1N2n1/b2BnRn1/R2Bn3/2B1K1P1/r1qr4/BB4N1/bQ1pb1kB/N5n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 c4 d5+ Kd3 h5 g4 a5 f4 h3 b4 h4 c5 e4+ Kc2 h2 b6 a4 b7 a3 b5 a2 c6 d3+ Kc3 d2 Kd4 h3 b6 e3 c7 e2 Na3 e1N Qc2 d1B Qf2 Bc5+ Kc3 Be6 c8B Be2 Nc2 Qc7 Bd7 Nc6 b8B Ra4 b7 Ba7 Ba3 Nf3 Bc5 Qc8 Bbd6 Nce7 b8B Ng5 Bg2 Rd4 Rf1 Bf7 Na1 Ne6 Be4 Qa6 Bc2 Qb5 Bb3 Qa4 Nc2 a1R Bbc7 Ra3 Na1 Qc6 Qg2 Raa4 Rf3 Nh6 Rf1 Rb8 Rf3 Nhg8 g5+ Kg7 f6+ Kg6 f5+ Kh5 Rf2 Kh4 Rf3 Bc4 Qa2 Be2 Qb2 Qb5 Rf4+ Kg3 Rf1+ Kg2 Rf3 Be8 f7 Qa6 f8B Bf7 f6 Qb5 Rf4 Qc6 Nf3 Qb5 Rf1 h1N Nd2 h2 Ne4 Nf2 Ng3 h1N Rh4 Nh3 Rh6 Ng1 Rf4 Bg6 f7 Bb1 Ba3 Ba2 Bdc5 Nc6 Bfd6 Nce7 f8N Qc6 Rf7 Qb5 Nh5 Ng3 Rhf6 Ngf5 Ng3 Nfg7 Rg6 Nf4 Ne6 Qa6 Nd8 Nfe6 Rff6 Rh4 Rf7 d4+ Kd2 d3 Ke3 d2 Rgf6 Rhb4 Rh6 Nd4 Ke4 Qc4 Ke5 Nde6 Nf1 Nh3 B7b6 Bd3 Bdc7 Nef4 Bg1 Be2 Rd6 Qb5+ Bbc5 Rd4 Ra6 Nfe6 Bd6 Qc4 Bh2 Ng1 Ng3
1rNq1nr1/bnnk2b1/PNn1N3/3N4/b1KR2r1/NB2N1BB/2R4p/6Qn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Kd3 c5 f4 b5 g4 h5 a4 b3 g5 b2 d6 b4 a5 b3 a6 h3 f6 h2 d7+ Kf7 f5 e4+ Kc4 h4 d4 h3 d5 e3 d6 e2 Na3 e1B Nf3 b1R Nd4 b2 Bf4 Ne7 g6+ Kg8 g7 Kf7 Ra2 Ng6 Bg3 Ba5 Ndc2 Bb4 Ne3 Rg8 Bg2 Ba5 Qg1 Bb6 Bf1 Nc6 Bg2 Qe7 d8N+ Ke8 f7+ Kd7 f6 Ba7 Ne6 Qd8 Nf4 Rb8 Nfd5 Rd1 Bf1 b1N Rc2 Nc3 Bg2 Nb5 Bf1 Rh8 g8B Bg7 Bg2 Nc7 f8N+ Ke8 Bf1 Bd7 Ne6 Nf8 Bg2 Nb4 Bf1 Ba4 f7+ Kd7 Bg2 Nc6 Bf1 Ne8 Nec7 Rdb1 Na8 Nc7 Rd2 Rh4+ Rd4 Rg4 Bg2 Ke6 d7 R1b2 Bf1 Rg2 Kd3 c4+ Kc3 Qh4 d8N+ Kd7 Nb7 Qf6 Nd6 Qd8 Qf2 Rg1 Nc8 Rg2 Rg1 h1N Qe1 h2 Qd1 Re2 Bh3 Rg2 Re1 Rg1 Re2 Rg2 Rc2 Rg1 Kd2 c3+ Kd3 Rg2 Kc4 Rg1 Re2 c2 Qa1 c1N Rc2 Nb3 Qd1 Nfe6 Qf1 Nbc5 f8N+ Ke8 Qb1 Rg2 Qg1 Nb7 Nh7 Nf8 Ng5 Kd7 Ne6 Qh4 Bf7 Qd8 Bh5 Rg5 Bd1 Rg6 Re2 Rg4 Bb3 Bf6 Ra2 Rg8 Rc2 Bg7 Bh4 Rg5 Bg3 Rg4 Nab6+
K2Qr1r1/b1N2nP1/1q2B3/1pRn1B2/kn1BR1bB/3bN2B/Rb6/2bB3r b - - 0 1 illegal: No possible last move
2N4R/1R1P3K/2r1k1n1/5rRB/R2Nq1rR/r1R1QBr1/b2p1B2/2nb1nb1 b - - 0 1 illegal: No proof kernel
2R1qN2/kb3n1K/3Nr1rN/1N1Q3R/3b1N1B/1pB1bN2/2BPb3/nbq3q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 Ke4 c5 g4 Kc7 f4 Kb6 a4 h5 f6 b3 g5 c4 d6 b2 g6 h3 f5 c3 a5+ Ka7 g7 b5 f7 h4 f6 b4 a6 b3 d7 c2 Kf5 h2 Kg6 e4 Bd3 e3 Bf1 e2 Nc3 e1B Nf3 b1B Bd3 h3 Bb2 c1Q Bc2 Bf2 Ne4 Bb7 Nd6 Be3 Bc3 Nh6 g8N Qe8 d8B Bg7 Ra4 Nc6 Rc4 Nd4 Rc8 Rh7 Qe2 Bh8 Qb5 Rb8 Qd5 Rg7+ Kh5 Rg6 f8N Nf7 Nh6 Qg1 Ne6 Ra8 Nf4 Bg7 Be4 Nc2 Bf5 Na1 Bc2 Ng5 f7 Bgd4 f8N Nf7 Bh4 Qc1 Rg1 h1Q Rg5 h2 Rf5 Qhg1 Re5 Kb6 a7 h1B Rg5 Rb8 a8N+ Ka7 Nc7 Bg2 Rf5 Bf1 Re5 Be2 Rf5 Re6 Rg5 Re7 Kg6 Re4 Kh7 Re6 Rh5 Ra8 Na6 Rg6 Rc4 Rd8 Nc7 Rd7 Rc6 Re7 Rc4 Ree6 Ncb5+ Kb6 Rc8 Ka6 Nc7+ Ka7 Ncb5+
1rnB1N2/1b6/3Q2qN/1brbrNNB/bk1bnKN1/1p1PB3/1RN5/R1q5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 f4 Kc5 a4 b5 g4 e5 a5 h5 d3 h3 a6 b3 g5 b4 f6 e4 f5 h4 g6 b2 f7 h2 g7 h3 a7 Nd7 d6 Bb7 f6 Rh5 Qa4 Qe8 Qd1 Ne7 g8N Nc8 Qe2 Rb8 a8N Bg7 f8N Qg6 f7 Bd4+ Kf4 e3 Ra2 Nf6 d7 Ne4 Na3 b1B d8B Bc2 Nf3 Ba4 Ng5 b3 Nd7+ Kb4 f8N c5 Rb2 c4 Ndf6 c3 Nc7 c2 Nce6 Bbc6 Qg4 e2 Be3 c1Q Ng7 e1R Nh6 Bcb5 Qe6 Re2 Rg1 h1B Nfg4 h2 Ngf5 Bg2 Qc6 h1B Qd7 Rc2 Be2 Rc5 Re1 Ned6 Rd1 Bb7 Qe6 Ne4 Qd6 Nf2 Rg1 Bhd5 Rd1 Ne4 Rh1 Qc3 Ra1 Qc1 Ne5 Rh1 Bh5 Re1 Neg4 Nd2 Bg1 Re5 Be3 Ne4 Nc2+
N1B2rnr/2N1r1Q1/3R1B2/1K2Bk1B/P3bq1p/3Bnq1r/1B1r3N/3n2bR b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kd3 b5 a4 f5 e4 c5 g4 f3 d6 Ke6 e5 h4 d7 b3 g6 f2 g7 c4+ Kc3 f4 g5 f3 d5+ Kf5 d6 b2 Kb4 c3 e6 c2 e7 Qc7 e8N Bb7 d8B Nd7 g6 Ne5 Bf6 Nc4 Nd2 b1N Bd3+ Be4 Bcb2 f1Q Bfe5 f2 Ngf3 c1R Nh2 Ne3 Nc4 Rc2 Nb6 Ra7 Na8 Nc3 Qc1 Qb7 Nec7 Ncd1 Ra3 Qb8 Qa1 Rd2 Rc3 Qe2 Rc6 f1R Kc5 b4 Ra6 Qd8 Kb5 b3 d7 Bc5 Rd6 Qg5 d8B Qf4 Be7 Qef3 B7f6 Ne7 g8B Bd4 Bf7 Ng8 Ne8 Re7 g7 Bc5 Nec7 Rff2 Bc1 b2 Bh5 b1R+ Bcb2 Rc1 Rf1 Rc3 Rh1 Nh6 g8B Ra3 Ba2 Ng8 Bac4 Q3g3 Bg5 Nc2 Bb3 Bb6 Bed4 Qfg4 Bf1 Rf4 Bg7 Bg1 Bbd4 Qf2 Ba2 Rh3 Bd3 Nce3 Bd5 Rff3 Bb7 Qfg2 Bf4 Qf1 Bg3 Kg5 Bc8 Rf8 Qc3 Ra2 Qb2 Qff3 Qg2 Rd2 Bb2 Qgf5+ B3e5+ Q5g4 Ba6 Qf4 Bgf6+ Kf5 Bb7 Qe2 Qg7 Qef3 Bc8+
1RBR1qn1/6BN/k2RB3/6pK/n5nQ/r2RR2r/1qbR2P1/1n2Nnbr b - - 0 1 illegal: No possible last move
bq1R4/2BR2n1/K2RB1Q1/1R1pqRrN/2R1q3/N1bnr1r1/P1rb2k1/6B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 h4 e5 c4 g5 f4 d5 c5 g4 h6 d3 f6 b3 f7 b2 c6 d2 h7 g3 h5 g2 h6 Bb4 f8R Qe7 f5 Bc3 c7 Na6 f6 Nb4 f7 Ra3 Rd8 Nd3 f8B Nf6 Rd7 Nh5 Rd8 Rg8 h8R Rg3 h7 Ng7 Qh5 d1R Bh6 Rc1 Ne2 g1R Rd6 Rc2 Qg6+ Kf3 Bf4 e4 Rh5 e3 Rf5 Qe5 Bh3 b6 Rg8 Bb7 c8R Ba8 h8R Kf2 Bg4 Kg2 Rc4 Rb3+ Ka6 b5 Rh3 b4 Na3 b1Q Rh7 Qe1 Rb1 Qe4 Nd4 e2 Ne6 Bd2 Be3 Rbc3 Bb6 b3 Bc7 b2 Be7 Re3 Rgd8 Qg3 Bf6 e1B Bd4 Qge5 Ba7 Rb3 Bd4 Bc3 Bdb6 Bed2 Nf4+ Kg3 Nh5+ Kg2 Rf7 Rg3 Be6 Rg5 Rfd7 Re1 Bg1 Re3 Rf1 b1Q Rf5 Qf1 Rh6 Qff4 Rb6 Qg3 Rb5 Qh2 Ba5 Qb8 Bb6 Qhe5 Bc7 Reg3 Qe8 Rb1 Bf7 Ra1 Rhd6 Re1 Be6 Ree3 Qg6
1br2R1r/3bR3/R2k3q/pq1NRP2/3n1qnR/n2BB1B1/4Qr1R/1Nn4K b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 c5 b4 e5 f4 h5 Kf2 h3 f5 c4 b6 c3 b5 h2 Kg2 c2 d6 e3 d5 e4 b7 h4 b6 e2 g5 e1R g6 e3 g7 e2 Nh3 Qc7 Be3 c1N Ra6 Nf6 g8R Ng4 Nf4 Nc6 b8B Nd4 b7 Qb6 Qd3 Qb5 Rg7+ Be7 Qc2 Rd1 Bc7 Rd2 Qd1 Rb2 b8R Rc2 Rh7 Rb2 Rb7 e1N+ Kh3 Rg2 Bd3 Rf2 Qe2 Nec2 Re1 Na3 Rh5 Rf1 Kg2 Rf2+ Kh1 Bf6 Rh6 Be5 Bb8+ Ke8 d7+ Ke7 d8R+ Bd7 Bc7 Rc8 Rf8 Bd6 Bb6 Bb8 Bc7 Be8 d6+ Kd7 Ra4 a5 Nd5 Kc6 d7+ Kc5 d8R Bd7 Rh7 Kc6 Bb6 Kd6 Bc7+ Kc5 Rf6 Ne5 Qd2 Be8 Bf4 Bc6 Rdf8 Ndf3 Rg6 Be8 Ra6 Bc6 Bb6+ Kd6 Rbe7 Bd7 Qc2 Rf1+ Kg2 h3+ Kg3 h1Q Re3 h2 Qe2 Qg1+ Kh3 Qg5 Bg3 Rf2 Rg4 Qf4 Re4 Nf7 R4e5 Nh6 Ba7+ Bc6 Be3 h1Q+ Bh2 Nd4 Rg2 Qd1 Bg3 Qf1 Kh2 Qe1 Qf1 Ng4+ Kg1 Qd1 Qe1 Qdf3 Qe2 Qg5 Rh4 Qff4 Rgh2 Qh6 Nb6 Be8 Kh1 Bd7 Nd5+
3KN1Nr/1q2BB1n/2RR2Pb/B2r1nN1/2b1NN2/npb5/2q2nk1/1rNQ4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 c5 Kg5 Ke5 a4 Ke4 f4 b5 g4 e5+ f6 h5 d4 b3 a5 b2 d6 h3 d7 b4 a6 h4 f5 b3 d5 c4 d6 c3 a7 c2 Ra6 h2 Bd2 c1Q Nc3+ Kd4 Ne4 b1R Bc4 h3 Rc6 Rh6 Bf7 Qc7 d8B Qc2 d7 Qb7 B2a5+ Ke3 Ne2 Kf3 Be7 Na6 d8N Nc7 Ne6 Rh8 N6f4 Be6 Kg6 Rb8 a8N Nb5 g5 Rd8 Nc7 Rd5 Ne8 Na3 Rg1 h1N Nc1+ Qe2 Rg4 h2 Rh4 Nf2 Rh3+ Kg4 Rd3 h1N Rd4 Kf3 Rd2 Rc5 Rdd6 Bc4 Bd5 Qb5 Kf7 Bh6 g6 Qb7 Ke6 Ng3 f7 Rb5 f8N Nf6 Nd7 Nh7 f6 Nf5 f7 Rc5 f8N Rb5 Qg1 Qc2 Ndf6 Rc5 Ng8 Rb5 Nc3+ e4 Qd1+ Kg3 Kf7 e3 N8e6 e2 Ng5 e1B Nce4+ Kh2 Be6 Bb4 Bd5 Bc3 Ke6 Qb8 Kd7 Qb7+ Kd8 Rc5 Nfd3 Kg2 Bf7 Rd5 Nf4+
2q1q2B/N3B1Br/1bRqPB2/3Nrk2/b1K2Q2/BR3p2/B2bn2q/nN5r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 b4 a5 e4 c5 g4 f3 g5 h3 b6 c4 d6 Ke6 e5 h2 b5 f2 b7 f4 d5+ Kf5 e6 h4 b6 a4 g6 a3 d7 h3 d6 f3 g7 a2 Bg2 f1Q Qa4 Na6 b8B Ne7 g8N Qd1 b7 Nc6 Ne2 Nc5 Ba3 Nd4 Bf1 Ra5 Nf4 Bh6 Nd5 Qe8 d8B Bd7 Bf6 Rh7 Bh8 Bc6 d7 Ncb3 d8B Ne2+ Kb4 c3 Bd6 c2 b8B c1B B6e7 Bhe3 Kc4 Bcd2 Bbe5 Bb6 Beg7 Bd7 Rg1 h1R Bef6 h2 Bde7 Bc6 Rg4 Bd7 Rd4 Bc6 Rd3 Bd7 Qb4 Ba4 Qd6 Nbd4 Rb3 Nc2 Nc7 Rd5 Nb5 Re5 Na7 Qc1 Nc3 Qd1 Rc1 a1Q Nb1 Qb2 Qd4 Na1 Rcc3 Qbc1 Qf4+ Kg6 Bh4 Qcc2 Nf6 Qcc1 Nd5 Qcc2 Qh6+ Kf5 Bhf6 Bc6 Kb4 Bf4 Nc7 Ba4 Bc1 Rg1 Ba3 h1Q Rb2 Ng3 Bc4 Qhh2 Ba2 Ne2 Rbb3 Qd6+ Rc5 Rh1 Nd5 Qd3 Qh4 Qa6 Qg3 Qac8 Kc4 Bg5 Rc6 Bd2 Qf4+
4NR2/nq1kQRrq/2bp2Rb/4n3/2rrRRqN/2n3P1/1RKN3q/4B2B b - - 0 1 illegal: No possible last move, all moves rejected
BK6/3b1N1k/1nP1rbBN/1q1N1bR1/n2B1r2/QpN2N2/1nrqN3/1b2R3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 e5 Kc4 b5+ Kd5 g5 a4 Kg7 h4 d3 c4 d6 f4 e4 f6+ Kh7 f5 g4 h6 e3 f7 d2 c5 b3 h5 g3 c6 b2 f6 b4 a5 g2 a6 b3 a7 e2 Ra5 e1Q Be2 Qe7 Nc3 b1B Bb2 Qd8 Nf3 g1R Qc1 d1B Ba1 Bh3 Qa3 Rg4 Rg1 Qf2 Re1 Bg7 Ke6 Qh4 Rg5 d5 Bb2 Qb6 Kd6 Qb5 Kc7 d4 Ba1 Ne7 f8N+ Kg8 Ng6 d3 f7+ Kh7 Nf4 d2 Bb2 Bdc2 Nfd5 d1N Ba1 Nb2 f8N+ Kg8 Bd1 Nd7 Ne6 Re8 a8B Rf4 Ned4 Nb6 Nde2 Nec8 Kb8 Qf2 h7+ Kf7 h6 N6a4+ Kc7 Ncb6 Kb7 Rhf8 h8N+ Kg8 Nf7 Re6 Kc7 Rd8 Kb7 Rdd6 Kb8 Bcf5 h7+ Kf8 h8N Kg8 Rg2 Kh7 Nh6 Bf6 Rg5 Qd4 N8f7 Qd2 Nb4 Rdd4 Nbd5 Rc4 Ne4 Nd3 Bd4 Rc2 N4c3 Ndb2 N3e5 Bg6 Ng3 Re7 Bh5 Bd7 Nf3 Bgf5 Nge2 Re6 Bg6+
b1r3RK/r1nR1rrR/p2BnqP1/2qN2R1/3b3Q/N2Rb3/3N4/kn1BR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 b4 c5 g4 f5 g5 f3 b6 f2 g6 f4 d6 h3 d7 h2 b7 f3 b5 a6 b6 h4 d5 h3 d6 Nc6+ Ke6 Bg7 Kf7 Nf6 b8N Nd5 b7 Ra7 Na3+ Kc3 e4 c4 e5 Nc7 e6 Nd4 e7 Nde6 e8R Bd4 Bf4 Kb2 Nc6 c3 b8R+ Bb7 Ne7 c2 Rg8 c1B Nd5 Bce3 Be2 f1N Qe1 f2 Bd1 Nd2 Nf3 f1R Qh4 Nb1 Nd2 Rf3 Rg1 h1R Rg5 h2 Ra8 Qc8 d8R Re1 d7 h1Q Rg7 Qf1 Rh7 Re8 Rb8 Re7+ Kg8 Rg7+ Kh8 Rf2 Bd6 Rff7 Rg2 Qf6 Rg5 Rg1 Rg8 Qf8 Re8 Ba8 d8R Rg2 Rd7 Rg3 Be5 Qc5 Red8 Rh3 Bd6 Rh2 Nf3 Rc2 Nd2 Nc3 Rc1 Nb1 Rb8+ Ka1 Rb3 Rb2 Rd3 Rb8 Bh5 Rbf8 Re1 Rc8 Bd1
2qBk3/b2p4/1nBN1B2/B2qr3/1QR2bR1/2r1b1Bq/1K2bP1N/NnnB4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 b4 a5 c4 e5 Kc2 d3+ Kb2 d2 g4 e4 g5 a4 g6 h3 b6 h2 b5 e3 f6 h4 b7 e2 b6 e1B c5 h3 c6 Na6 b8B Rh6 c7 Nc5 g7 Ba6 c8N Ne7 g8B Nd5 b7 Bd6 Bg2 Rh5 Qg4 Be2 Na3 Nb3 Bc7 Re5 b8B Nb6 Bc6 Bc5 Qe4 Be3 Qb4 Ra6 Nc2 d1N+ Ka3 Ra7 Nf3 B1d2 Bb2 Nc1 Bb3 Nc3 Rg1 h1Q Nh2 Qd5 Rg4 Bf4 Rb1 Bde3 Na1 Ra5 Bd1 Rc5 Nf3 h2 f7+ Kf8 Nd6 h1Q Nh2 Qc8 Bd8 Qhf3 Bh4 Qh3 Bg3 Ke7 f8B+ Kd8 Bh6 Rc4 Bc7+ Ke7 Nb5+ Ke8 Bg5 Rc5 Bgd8 Rc4 Nc2 Rc5 Ba1 Rc4 Rb3 Nb1+ Kb2 Rc5 Rc3 Rc4 Ne1 Rc5 Rc4 a3+ Kc2 a2 Nd6+ Kf8 Bc3 a1B Bf6 Bb2 Bcd8 Ba1 Bd2 Bad4 Bc3 Qa6 Kb2 Qc8 Nb7 Ke8 Nc2 Ra5 Na1 Ra3 Qb5 Bc5 Ba5 Rc3 Qb3 Na8 Qb5 Ba7 Qb4 Nb6 Nd6+
1B2q3/2kpQ3/P2b1Nrn/5Rq1/1rB1B1BB/1bq1R1R1/5KB1/1b1q1nNr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 b5 a4 e5 g4 h5 f4 b3 g6 d3 c5 h4 c6 e4 f6 b2 f7+ Ke7 g7 Kd6 f5 b4 c7 d2+ Kf2 b3 a5 h3 g5 h2 g6 Ne7 g8B Nd5 g7 Be7 f8B Nc6 a6 Rh4 f6 Qe8 f7 Nd8 Qe1 d1Q Be3 Bb7 c8B Kc7 Bg2 Bd6 Nd2 b1Q Ba7 b2 Be7 Qbc1 f8R b1B Ra3 Nf7 Re3 Nh6 Be6 Rg4 g8B Rg6 Rf4 Rb8 Bh4 Bc6 Qe2 Rb4 Bg4 Ba4 Bb7 Bb3 Rf5 Qc3 Rg3 Ne3 Bc4 Nf1 Qe3 Qdc1 Qg5 Qd1 Qe7 Qdc1 Ke2 e3 Ne4 Q1d2+ Kf3 e2+ Kf2 Qg5 Nf6 Ne3 Bbe4 e1Q+ Kf3 Qd1+ Kf2 Qc8 Ne2 Qg8 Re1 h1R Ng1 Nf1 Ree3 Qe8 Bb8+
3RBn1K/2p1n3/1r3kB1/1NBP1Bn1/2q1B3/br1QRn2/1n3nN1/R2bBb2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 f5 b4 h5 g4 a5 e4 a4 d4 h4 g6 a3 d5 h3 b6 a2 g5 c3 g7 c2 g6 h2 b5 Ra6 b7 Rh7 b6 Nh6 g8B Rf7 e5 Nd7 e6 Kf6 b8B Ba3 b7 Nf8 e7 Rb6 Bd2 c1N e8B Nd3 g7 Nb2 Bh7 Ng8 Bg2 Ne7 g8B Bd7 Qf1 Ba4 Nc3 Bd1+ Nge2 Rg7 Rg1 h1N Bgf7 Nf2 Ba7 Qd7 b8R Qb5 Be6 Qc4 Rd8 Rb3 Rh1 Rg6 Bc5 Rh6 Rh3 Rg6 Rc1 a1N Be1 Nc2 Ra1 Rh6 B6d7 Rg6 Bh1 Rh6 Bhg6 Nd4+ Kg2 f3+ Kg3 Nde6 Nf4 Ng5 Ng2 Bb4 Qd3 Ba3 Nb5 f4+ Kh2 Nfe4 Bdf5 f2 Rh4 f1B Rh3 Bh5 Rg3 Nf2 Re3 f3 Kg3 Nfh3 Nh4 f2 Bhe4 Bd1 Ng2 Bfe2 Bh5 f1N+ Kh4 Nh2 Beg6 Nhf3+ Kg4 Rh7 Be8 Bf1 Bhg6 Rf7 Kh5 Nf2 Kh6 Ke5 Na7 Rf6 Kg7 Rfb6 Kh8 Kf6 Nb5
2b1Br2/3NN1nP/1n1br1R1/n3B1NB/2b1pqb1/4QNN1/4N1kn/Kn2R3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 f4 g5 b4 a5 Kb2 d5 c5 e5 f6 a4 f7 g3 b6 d3 b5 g4 b7 d2 b6 d4 f5 d3 h5 g2 c6 g3 c7 Be7 f8N Ra6 h6 Qd6 h7 Nf6 Ng6 Rf8 Nh4 Nbd7 b8N Nh5 b7 Nb6 f6 Ng7 Ne2 g1N f7 g2 Nc6 Nf3 b8N g1N Nf5 Nh2 Nfg3+ Kf3 Qb3 d1B Bf4 e4 Nd7 a3+ Ka2 Kf2 Be5 Ngf3 Rg1 d2 Bh3 Qf6 Bg4 Qf4 Bh5 Bd6 Ne7 Bc2 Qd3 d1B Nd2 Bb3+ Kb1 a2+ Kb2 Rg8 f8N Bc4 Ne6 Rf8 Rc1 a1N Ng5 Nb3 Rb1 Nfd4 Ndf3 Na5 Ka1 Nb5 Re1 Kg2 Qe3 Nc3 Rb2 Na8 Rb6 Nb1 Rc6 Nb6 Be8 Bc5 Rg6 Bd6 Nc5 Bg4 c8B Ba4 Be6 Bd7 B6f7 Bc8 Nd7 Ra7 Re6 Rc7 Bh5 Rc5 Bc3 Re5 Rg6 Re6 Be5
KR1b2N1/1rN5/1QN1B2r/B2P2q1/1bn1kN2/1R2NbRn/1p2r1qr/2b1N3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Ke4 e5 d4 c5 g4 b5 f4 h5 a4 b3 a5 b4 g5 c4 f6 b2 f7 c3 g6 b3 a6 h3 a7 h4 g7 c2 f5 h2 f6 h3 Ra3 Nd7 Nd2 b1R Bc4 b2 Ngf3 Be7 f8N Nb6 f7 Nh6 g8N Bg4 Rb3 Rb8 a8N Rb7 Rg1 h1Q Nf1 h2 Bd2 c1B Ba5 Qg2 Nc7 h1R Ne3 Rh2 Nfe6 Rh7 f8R Nf7 Qd3 R7h6 Nf4 Bh4 Qf1 Qg5 Qf2 Ra1 Rb8 Ra3 Bb5 Nc4 Bd7 Ra4 Be6 Rab4 Kd3 e4+ Kc3 R4b5 Ne1 Rc5 Nh3 Bf3 Nf4 Nb6+ Kb4 Rc2 Kb5 Re2 Ka6 Nc4 Rd3 Qf6 Rb3 Ng5 Rc8 Nh3 Rb8 Qgg7 Rg6 Qg5 Qg1 Qg2 Rg3 Bd8 Qf2 Qg5 Qg1 Rb4 Ka7 Rb7+ Ka8 Rd2 N3c2 e3 Qf2 e2 Ne3 Rc2 Bf7 Kd7 d6 Kc6 d7 Kd6 d5 Ke5 Be6 Ke4 Ned3 e1B Qg1 Bb4 Ne1 Bf6 d8N Re2 Nc6 Bd8 Nf1 Qh5 Qb6 Qg5 Ne3
2b3KQ/NR3rnr/3kNR1P/1n2Bqb1/R1R1R2b/q4B1p/1B2b2n/3Rn3 b - - 0 1 illegal: No proof kernel
1NRr3R/Q2q1Bnb/PB2RK2/3q4/3N1pq1/3k2RB/r1qrRRrb/6n1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 b5 a4 f5 h4 c5 h6 g5 a5 g4 d6 b3 h7 g3 h5 f3 h6 g2 d5 b4 d7 f2 d6 b2 Nf3 g1R Ra2 b3 Rh2 Rg2 Be3 Nf6 Nd4 Nh5 Nc6 Ng7 Nd2+ Kc3 Nf3 b1R Ra3 c4 Bb6 Rb2 e4 Rd2 Qa1+ Kc2 Qa2+ b2 a6 c3 Qf7 b1Q Rb3 Qe8+ Kf6 Qd1 d8R Qd7 e5 Qe2 e6 Kd3 Rb2 c2 e7 c1Q e8B Qc2 Ra2 Rg8 h8R f4 h7 Bb7 Ne7 Nc6 Rc8 Ne5 Nc6 Rb8 Qe7 Ra8 Nb8 Be4 Rh6 Rh2 Bh3 f1Q Bf7 Qfg2 Rb2 Qgg4 Re8 Qf2 Rc8 Qd4 Re8 Qd5 Ra2 Qdc8 Qa7 Qcd7 Re6 Rhf2 Rg6 Rg2 Ra4 Bf5 Re4 Rgf2 Re2 Rh2 Nd4 Nf3 Rg5 Ng1 Nf3 Qh5 Rg3 Qg4 Nc6 Rd8 Nb8 Q7b5 d7 Bc5 Rf2 Rg2 Rfe2 Rge8 Rf8 Qba4 h8R Bh7 Rf2 Qb5 Ree2 Re4 Rfg8 Ra4 Rge8 Ra2 R8e6 Rg8 d8R Qbd7 Rc8 Rd8 Rf1 Qgh5 Rg5 Qg4 Rg6 Bf2 Rg5 Bh4 Rff2 Bg3 Rg6 Bh2 Rg5 Qh5 Rg3 Qg4 Nd4+
3k1N1N/q1pnBb1R/2rr1bQ1/1B2qqbq/1NPN1Nn1/6K1/3N2b1/1B3R2 b - - 0 1 illegal: No possible last move
1nr1N1n1/NpR2rB1/2N1P1N1/N1q1R1Kb/1B1n4/b2k1rNB/3Q2q1/1n4r1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 h4 Kd4 a4 g5 d6 f5 d7 c5 a5 b3 e5 b2 e6 c4 h6 c3 h7 c2 h5 Nh6 a6 Bc5 a7 Ng8 h6 Qe8 d8N Qf8 Ra5 Bd6 Bh3 Kc4 d4 Ba3 d5 Na6 d6 Nb8 d7 Qc5 Nd2+ Kd3 Nc6 b1N d8N Bd7 Ne2 Be8 Ng3 Bf7 Bb2 c1N Bc3 Ne2 Bb4 Be8 Qc1 Bg6 Nb3 g4+ Kg2 Bh5 Qd2+ Kc4 Re1 Nd4 Re5 f3+ Kh2 f2 Ra4 f1R Nba5+ Kb5 Kg2 Rg1+ Kf2 Rf1+ Ke3 f4+ Ke4 f3 Kf4 f2 Kg5 Bb2 Ra2 Ba3 Rc2 Rg1 Rc3 f1R Rc1 Rf3 Rc4 Na6 Rc3 Rb8 a8N Rc8 Rc2 Nb8 Nc7+ Kb6 Ne8 Kb5 Rc4 Rc7 Rc1 Rcf7 Na7+ Ka6 Ne4 g3 Ndc6 g2 Ng3 Kb6 Nc8+ Kb5 Rc3 Rd1 Rc4 g1Q N8a7+ Ka6 Rc3 Qg2 Rc1 Rg1 Rc4 Nf6 Rc2 Rhf8 h8B Ng8 h7 Kb6 Bg7 Ka6 Nc8 Kb5 h8N Rc3 Nb3 Kc4 N8a7 Rf3 Ng6 R8f7 Qe1 Kd3 Nba5 Rc4 Nce7 Qd5 Qf2 Rc8 Rc7 Qb5 Nec6 Qc5 Qd2+
3BNKB1/RnB4Q/r1N3pn/3R4/P2qb1q1/2bqBBn1/2pk2N1/2r3Bb b - - 0 1 legal: proof: f4 d5 c4 dxc4 b4 h5 g4 a5 gxh5 e5 fxe5 axb4 Kf2 Kd7 Ke3 Kc6 Ke4 Kb5 d4 c5 h4 f6 h6 b3 d5 Kb4 h5 b5 h7 b2 e6 g6 h6 f5+ Ke5 c3 e4 c4 e7 c2 e8B f4 d6 f3 d7 c3 Ke6 f2 Kf7 Ne7 e5 Bb7 e6 Bg2 Ne2 Nd5 e7 Na6 Bf4 c1Q Rh5 Ne3 Bc7 Bb7 Nf4 Ng4 Rd5 Nc5 Nd2 b1Q Be2 f1N Bf3 Bg7 Nc4 Ng3 Ne5 Ra6 Qh1 Qd1 Ng2 Qbd3 Nc6+ Kc4 a3 b4 Qh3 Qc8 d8B b3 Qh4 Rg8 h8B b2 h7 b1B Bd7 Qd4 e8N Kd3 Be6 Nh6+ Ke7 Rf8 Bg8 Qg4 Ra2 Be5 Bf6 Bc2 h8B Kd2 Qh2 Qf1 Bh4 Qfd3 Bg7 Rf5 Bgf6 Ba8 Kf8 Nb7 Qh3 Rg5 Bfe7 Bh8 Bc5 Re5 Qh2 Re1 Qh1 Rc1 Ba7 Q4c4 Bg1 Qdd4 Ra1 Be4 Qh3 c2 Ra2 Ne2 Bhf2 Qdd3 Qh4 Bc3 Qe7 Qcd4 Qh7 Q3e3 a4 Ng3 Rb2 Qdd3 Rbb5 Qed4 Ra5 Rb6 Ra7 Ra6 Rh5 Qe6 Rb5 Qg4 Rd5 Nh5 Rb5 Bb4+ Ne7 Ng3 Be2 Bc6 Nh4 Bh1 Bf3 Bc3 Ng2 Na5 Rh5 Bd5 Nc6 Be4 Rd5 Nb7 Be3+
K2nr1Nn/bB2BP2/1bk1B2q/B5q1/2rp1r2/1RRB1N1Q/p3b1N1/3Bn3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 a5 c4 d5 f4 Kd7 b4 e5 g4 h5 g6 d3 Ke3 h4 f5 h3 c5 a4 b6 h2 g7 d2 c6+ Kd6 b5 a3 b7 a2 f6 Bd7 b6 Ra3+ Bd3 Ra5 c7 Rh4 c8B Qc7 g5 Nc6 b8N Nh6 g8B Nd4 b7 Bg7 g6 Nf7 Ba3+ Rc5 Nf3 Ba4 Qb3 d1Q Nbd2 Qe7 Nd7 Ne6 b8B+ Kc6 Nc4 Ned8 Bc7 Nh8 Be6 Bb5 Rb1 Rf4 Ba5 Bf8 f7 Qg5 g7 Qc2 Rhf1 h1R g8B Qh2 Nf6 Qhh6 Rfc1 Re1+ Be2 Bd6 Bh7 Bc7 Ng8 Bb6 Rc3 Ba7 B3b4 Ba6 Qa3 Bb5 Rbb3 d4+ Kf2 Ba6 Ne3 Rc4 Be7 Bb5 Bd1 Ba6 Ng4 e3+ Kg3 e2 Bd3 e4 Kg2 Qf5 Ne3 Qfg5+ Kf2 Rh1 Ng2 e1B+ Ke2 Bg3 Kd2 e3+ Kc2 e2 Kb2 Bb6 Bb7+ Kc7 Qa4 e1N Ka3 Rg1 Qb5 Rf1 Qf5 Rf2 Qh3 Re2 Beb4 Bh2 Ka4 Re3 Bef5 Re8 Be6 Rc6 Be7 Rc5 Bdf5 Be2 Kb4 Rc4+ Kb5 Bg3 Ka6 Bh2 Bbc8 Kc6 Bd3 Bc7 Ka7 Bb6+ Ka8 Rg4 Ba3 Bb8 Bd6 Rf4 Be7 B8a7 Bb7+
R1qR1B1R/2q2pb1/P4R2/bQn2BBK/1p3Nr1/N1k1r2b/2q1R3/1Rn1n3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 h4 Kd4 a4 g5 d6 c5 d7 b5 Kg4 f3 e5 f2 a5 c4 h6 b3 e6 c3 a6 b2 h7 c2 e7 b4 e8R Nc6 h5 Bg7 h6 Ne5+ Kh5 g4 Nh3 g3 Qe2 g2 Nf4 g1B Qb5 Qc7 d8B Nd3 Bh3 f1Q Na3 b1Q Re2 Ne1 Bf5 Qh3+ Bh4 Bf2 Rf1 Ra7 d3 Kc3 d4 Rb7 d5 Bb6 d6 Ba5 Be3 c1N d7 Qc2 d8R Be6 Rb1 Nf6+ Kg5 Rg8 h8R Rb8 h7 Ne4+ Kh5 Nc5 Rf3 Re8 Rf8 Bd7 h8R Re6 Bg1+ Re3 Rfe8 Rb6 Ra8 Rg6 Red8 Rg4 Bh2 Qg3 Bg5 Qg2 Rff2 Qgb7 Bg3 Qbc8 B3h4 Qd6 Be7 Qdc7 Bhg5 Bc6 Bf8 Bg2 Red2 Bf1 Rfe2 Bg2 R2d6 Bh3 Rf6
1R1KB1bn/2Q1P3/1N1RrR2/1qpRb1kN/b2Rnq2/2B1rrq1/R6p/5B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 c5 d4 a5 b4 h3 g5+ Kg6 Ke5 f5 e4 h2 b6 f3 b5 f4 b7 f2 b6 a4 d6 f3 d5 h4 d7 a3 Ke6 a2 e5 h3 d6 Nc6 b8R Nb4 b7 Nf6 Nc3 Ra3 Bb2 Nbd5 Na4 Be7 Nb6 Rf8 Bc3 Qc7 Ne2 Ne4 Ng3 Bf6 Nh5 Ne7 Ra8 Bg7 b8R Rf4 Rg1 h1B Rg4 h2 Ra6 Bb7 d8R Bc6 d7 Ba4 Qd6 Rb3 Rc1 a1R Rc2 Re1 Ra2 Re3 Rh4 Rb1 Rf8 Rbe1 d8R Rf5 Qc6 Rf7 Rd5 R1e2 Bh3 f1Q Rfd8 f2 R8d6 Qb1 Bf1 Rff3 Rg4 Qb3 Qb7 Qc6 Qc7 Qcb5 Rf4 Nf5 Rh4 Nh6 Ke7+ Kf5 g6 Kg5 e6+ Be5 g7 Nf7 g8B Nh8 Kd8 Re1 Bc4 f1Q e7 Qf2 Bd3 Qg3 Bc4 Q3b4 Bf7 Bg2 Be2 Bh3 Bc4 Be6 Be8 Bg8 Bf1 Qd4 Rf4 Qd2 Rff6 Qdf2 Rd7 Qf4 Rd4 Q2g3 R7d5 Nd6 Ba5 Rb3 Rd1 Re4 Nd7 Rbe3 R5d3 Ba1 Rd5+ Re5 Bd2 Ne4 Rad6 Bd4 Nb6 Bc3 Rd3 Bd4 Bc3 Re6 R1d2 Be5 R3d5 Kh4 Rd1 Kg5 R1d4
n3BN1b/rN4b1/2kN4/Bn2N3/B2nn2p/Q1q3pn/KP6/NR1rRbN1 b - - 0 1 illegal: No proof kernel
Bb2bBb1/B2B1n2/2Kp1p2/2Rnr3/2N4r/1r1r1BRB/kqR1P3/r4Q1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 a5 b4 h4 c4 d6 c5 f6 b6 d3 c6 h3 c7 a4 b5 d2 g6 h2 g7 a3 b7 a2 g5 f3 b6 f2 g6 Nd7 b8R Rh7 b7 Nh6 g8B+ Nf7 g7 Nb6 Nh3 Bd7 c8B Ra3 Rg1 Nd5 Rg3 Rb3 Na3 Qb6 Nc4 h1B+ Bg2 f1R Nf2 Rh6 Bf3 Be7 Bh7 Rh5 g8B Bd8 Bg6 Rg1 Qf1 d1R Bh6 Bc7 Bf8 Rdd3 Rc1 a1R Rc2 Rh3 Ra8 Bb8 Ra5 Rh5 Rc5 Rh4+ Rg4 Bg2 Nh1 Bh3 B8h7 Rg3 Bh5 Re3+ Kd4 Re5 Bhe4 Qb4 Rg8 Bf5 Bg2 Bh7 Bhf3 Qa3 Rg4 Bg8 Bh3 Qa2 Ne3 Qb2+ Kc4 Bc7 b8B Rd3 Ba7 Bb8 Bb7 Be8 Ba8 Kd7 Bc6+ Kc7 Ba4+ Kb7 Bc6+ Ka6 Ba8 Rb3 Bf5 Rd3 Bd7 Rb3 Rc7 Ka5 Rc6 Ka4 Rc7+ Ka3 Rc5 Nb4 Kb5 Ka2 Nc4 Nd5+ Kc6 Rd3 Be4 Rge3 Bf3 Rb3 Rg6 Red3 Rg3
2Nn3R/n2N3q/3NB1b1/br1br2r/1Pr1kp2/4B3/1N1pRK2/n1RNNQ2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 Ke7 c4 Ke6 e4 Ke5 b3 a5 h6 f5 h7 d5 c5 g5 b6 d3 c6 a4 c7 f3 h5 f2+ Kd2 f4 b7 a3 h6 g4 Nh3 g3 Qe2 g2 Qe1 g1R Rh2 a2 Nc3 d4 Nd1 Ra4 Ng5 Qe7 Bh3 f1B Be6 Rc4 Re2 Nc6 b8N Bb7 c8N Nd8 b4 Bd5 Rb1 a1N Qf2 Qg7 Ke1 Ne7 Be3 Nec6 Rc1 Be7 Qg2 d2+ Kf2 Re8 h8R d3 h7 Rh1 Qh3 Na7 Nf3+ Kf6 Qg2 Rh5 Ne1 Ke5 Qg1 Bh3 Qh1 Bf5 Qf1 Kf6 e5+ Kg5 Nb6 Bg6 Nc8 Bd6 Nd7 Bc7 Bh3 Qg8 e6 Ba5 e7 Qf7 Be6 Qg8 Bf7 Kf5 Be6+ Ke4 Ncb6 Rc6 Na4 Rc4 Nab2 Qf7 Rf8 Qg7 h8N Qh7 Rg8 Rf8 e8N Rff5 Nf7 Re5 Ng7 Ba8 Rf8 Rb5 Nf5 Bd5 Ne7 Re5 Na4 Rh5 Rh8 Re5 Ndb2 d1R Nc8 Rd2 Nd1 Rdc2 Bg4 d2 Nab2 Rcc5 Bh3 R2c4 Be6 Rh5 Ng2 Bb7 Ne1 Rce5 Ncb6 Ba8 Nc8 Bd5 Nfd6#
n4BbB/BPbbRQ1N/3qr1Rr/7r/B2Np1N1/2Bk1p2/1rn4B/4n1K1 b - - 0 1 illegal: No proof kernel
8/R1q3RR/1r4np/QP2r1p1/3r1bB1/R2qr1n1/2krNR1K/Bb1N2BR b - - 0 1 illegal: No proof kernel
KnR1QB1N/2Np1q1n/1B1q4/1p1P2rR/1qB2bkB/1q1b4/4BN2/4q1Br b - - 0 1 illegal: No possible last move
knbBK3/P1b1pn2/QBRR4/1B1r3B/Nqpb2B1/8/2q2Bb1/N1rR1b2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 h5 g4 b5 a4 Kb7 f4 b3 d4 h4 g6 b2 g7 e3 d6 b4 g5 b3 a5 e2 d7 e1B Ke6 h3 Kf7 h2 f5 Rh4 a6+ Ka7 g6 Bg3 d5 Nf6 g8B Bd6 g7 Bb7 Nd2 b1B Ne2 b2 Nc3 Ba2 Qe2 b1Q Na4 Rh8 Nb3 Qc2 Be3 Rh6 Rd1 Ne8 f6 Be5 d6 Bf4 Bf2 Qc7 d8B Rh5 d7 Re5 Rd6 Rd5 Na1 Qa5 Bc7 Bg3 d8B Bc4 Bh3 Be5 Bg4 Qb4 Rd1 h1B Bh7 Bg2 g8B Bg7 Bg6 Bh2 B6h5 Bc8 Bh7 Bg3 Bd3 Bh8 Rc6 Nd6+ Kf8 Nf7 Ke8 Bh2 Ba5 Bc7 Qf1 Nh6 f7 Bd4 f8R Nf7 Rg8 Bb5 Rg6 Bc4 Rgd6 Bb5 Bdf5 Be2 Bd7 c4 Qe1 Bef1 Qe6 Qd3 Rc5 Qc2 Bb5 Nc6 Qf6 Rb8 Qh6 Ka8 a7 Rb7 Qf6 Nb8 Rcc6 Rb6 Nb2 Ra6 Bb6 Ra3 Na4 Rb3 Qf3 Rb1 Qa3 Rc1 Qc3 Qc5 Qa5 Qb4 Qa6
qqR3R1/1n5N/1q1b4/1p1rpR1N/1Q1rB2b/8/BR1PnRbB/KR2k2b b - - 0 1 illegal: No possible last move
NN2q3/2k3Kp/q2N2Br/2rQ2p1/1q1B4/1BrRnNPb/1Nn1R2b/4Nr2 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 Kd8 Kf3 f5 b4 g5 e4 a5 d4 c5 d6 a4 b6 a3 b7 a2 d5 c4 g3 c3 d7 c2 b5 Bd6 b6 Ra4 e5 Qh6 e6 Rc4 Nd2 Re4 Bc4 Ba3 Bb3 Qf8 Rh2 Bb4 Bb2 c1R Bd4 Re5 Re2 Qf7 Nc4 Qe8 Nb2 Na6 b8N Nh6 b7 Kc7 d8N Bc5 e7 Rf8 Nd7 Rf6 b8N Ng4 Nb7 Nb4 Nb6 Nc2 Nd6 Nge3 Rb1 a1Q Qd3 Qd7 e8B Rh6 Bg6 Qa6 Ra1 Qc6 Ra3 Qe8 Bc3 Qeb5 Ra1 Ng2 Ndc4 Na3 Ne3 Qb4 Nc2 Bf2 Ne1 Ne3 Qe4 Rc2 Rd1 Qab5 Red2 Qe8 Bd4 Rc3 Rc2 Bd7 Rcd2 Nac2 d6+ Kd8 Qb7 Rec5 Qd5 Be6 d7 Kc7 d8N Bd7 Nh3 Bg1 Nf7 Bh2 Ng1 Be6 Nd6 Bc8 Rg2 Bd7 Ke2 f3+ Kd2 f2 Ke2 f4 Kf3 Qc8 Ke4 f1Q Ke5 f3 Kf6 f2 Ngf3 Qe8 Kg7 Qa6 Rd3 f1R Re2 Bh3 Na8+
R1Bqbqr1/n6p/1N1QRrkb/nN2p3/P5q1/n1B1NnN1/2BN2K1/7N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 Kf2 b5 d4 e5 g4 c5 f6 h3 g5 c4 f5 c3 g6+ Ke8 g7 Kf7 d6 c2 d5 b3 d7 b2 d6 h2 Nd2 b1Q Bd3 b4 Ne2 b3 Kg2 b2 Ng3 Qe7 d8N+ Ke8 f7+ Kd7 f6 Na6 Ne6 Nb4 Nd4 Ra3 Ndf5 Ke6 d7 Ra6 Ne3 Nh6 g8B Ng4 d8N+ Kd7 a3 Nc6 Nb7 Ke6 Nd6 Bd7 N6e4 Qd8 Nf2 Bh6 Be4 Na7 f8N+ Kd6 f7 Ke7 Ra2 Kf6 Ne6 Be8 f8N Qa1 Bf7 b1N Bb2 c1N Nd4 Nb3 Be6 Na5 Bc3 Rg8 Nb5 Qb2 Rf1 Qb4 Bc2 Kg5 Nd7 Qf8 Nfh1 Rb6 a4 Na3 Rb2 Rd6 Rf5+ Kg6 Nb6 Rc6 Bd7 Rf6 Rb4 Nf2 Bc8 Nh3 Rc4 Ng5 Rc6 Nf3 Re6 Nb7 Nh5 Qd5 Kg3 Qfd6 Nb3 Bd7 Nf2 Na5 Bb7 Qd4 Ba6 h1Q Qd3 Qb1 Kg2 Qg4+ Ng3 Qd1 Nh1 Qb8 Qd5 Qdd4 Rf4+ Qd3 Rd4 Qa8 Nd2 Qc8 Qc5 Bc6 Rd8 Qb8 Qf8 Qd6 Qe7 Be8 Ra8 Qdb4 Qc7 Qd6 Bc8 Qf8 Nf5 Qd7 Qd6 Qd8 Ne3+
2b1KRq1/5pp1/Rb2b2B/2N3rR/NQBb2k1/NNN1r2q/1n1NP3/1n1q4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 a5 d4 c5 h4 g3+ Kf3 c4 Ke4 g2 Ke5 c3 h5 c2 d6 a4 h6 f3 h7 f2 b6 a3 d5 a2 b5 Bb7 Na3 Nh6 Nf3 g1B Bg2 f1B Qd2 Qc7 Qb4 Rg8 h8R Qc5 Nd2 Nf5 R1h5 Ba6 b7 Bf2 b6 Nh4 Be4 Ra7 Bd3 Bh3 Bc4 Qc6 Nab1 Be7 Na3 Re8 Rg8 Be6 Rf8 Kd8 d7 Qc8 Nab1 Bg1 Nc3 Bf6+ Kd6 Nc6 b8N Na5 b7 Be3 Rh6 Bfd4 Rh5 Bb5 Na6 Nf3 Nc7 Ba6 b8N Ra8 Nf1 Nd2 N7b5 Nb1 Na3 Bb6 Bd2 Bed4 Bh6 c1Q Nd2 Bb7 Na6 Qf1 Nc5 Qh3 Ncb3 Ra7 Nf1 Qa8 Nfd2 Bc8 Bb5 Rb7 Ba6 Nc4+ Kc6 Nb2 Bc4 Ba7 Kd6 Bac5+ Kc6 Ke7 d8N Kf6 d6 Rb8+ Nb7 Bb6 d7 Re7 d8N Kg6 Rh4 Kf5 Rh5+ Kg4 Kd6 Re8 N7c5 Rb7 Kc6 Rd7+ Ndb7 Rd5 N5a4 Rg5 Qb5 Bf5 Kd6 Re3 N7c5 Bfe6 Ke7 Bcd7 Rh8 Qg8 Qb4 Bc8 Nf3 Qh7 Rf8 Qg8 Ke8 Nd2 Rf1 Nb1 Nfd2 a1Q Rf6 Qa2 Na1 Qb3 Rg6 Qc2 Nab3 Qd1 N5e4 Bd5 Rc6 Bde6 Nec5 Bc7 Ra6 Ba5 Nd3 Bab6 Ndc5
1k2B1r1/4P2b/3n3b/b1R1r1Qn/KN3qbR/pN2Bn2/BBB1p1N1/1q2B3 b - - 0 1 illegal: No proof kernel
1bB1R1nk/q1p2K1N/1nqR4/P3B3/1Qp1qNN1/1N3R2/b1N2N2/r1n3rq b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 gxh5 dxc4 Ke2 Kf7 Ke3 e5 Ke4 b5 h4 g5 a4 Kg7 d4 g4 f4 b3 f6+ Kh7 f7 g3 f5 g2 f6 b2 d5 b4 a5 b3 h6 Be7 f8R Be6 d6 Qd7 h5 Qe8 f7 Bf6 d7 Bg7 d8N Nd7 Qd2 Ra6 Qb4 Rc6 Nh3 g1Q Nb7 Qa8 Bf4 Nb8 Nf2 Bf5+ Kd5 e4 Na3 b1N Rh3 b2 Rf3 e3 Nc2 e2 Re8 e1Q Bh3 Nd2 Rd1 b1Q Be5 Nb3 Nc5 Nc1 Nb3 Nd7 Rd4 Bd3 Bg4 Rc5+ Ke6 Nb6 Rd6 Qee4 Bh3 Qac6 Bg4 Ne7 f8N+ Kg8 Bh3 Rh7 Bg4 Kh8 Kf7 Ng8 Bc8 Rb5 Nd7 Qh1 Nf6 Qb2 N6g4 Qbd4 Bg3 Rg5 Be5 Bf6+ Ke6 Rhg7 h7 R7g6 Kf7 Rf5 Nh6 Rg1 Nhg4 Qde3 Ke6 Kg7 h8N Rg5 h6+ Kh7 Ncd4 Bb1 Ng6 Ba2 Nf8+ Kh8 h7 Rd1 Nc2 Rf1 Nh2 Rgg1 Kf7 Bg7 Nhg4 Re1 Bh2 Bd4 Bf4 Na8 Bh2 Ba7 Bg3 Nb6 Bh2 Bb8 Be5+ Nf6 Qc5 Na4 Bd7 Ne2 Ncd4 Ra1 Nc2 Nc1 Qb4 Qa7 Bc8 Nb6 Ke7 Kg7 h8N Qa6 Nhg6 Qa7 Nf4 Kh8 Kf7 Qd3 Bc3 Qd4 Nh7+ Ng8 Rf6 Qd3 Be5 Qde4 Rd6+
1NR5/nbn2nR1/1rN2N2/pq2Np2/n6r/5R1Q/Bb1NPnKN/2Bk3n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 b4 Kd6 d4 f5 g4 h5 g5 c5 g6 a5 g7 f3 b6 c4 b5 c3 b7 h3 b6 h2 Qc2 h4 Qd3 h3 Nd2 c2 Ra2 Nc6 b8R Nh6 g8N Qe8 b7 Bg7 Qe3 Nf7 Bg2 Rh4 Ra3 Ra6 Bb2 c1N Rd3 Nb3 Bc1 Be5 Nf6 Na7 Kf1 f2 Ngf3 Qc6 Rg1 Rb6 Bh1 Qb5 Rg7 Nc5 Ra8 Be6 Rc8 Na4 b8N Bd7 Rb3 Bc6 Bg2 Bb7 Qd3 Ke7 d6+ Ke6 d7 Kd6 d5 Bb2 Rh8 Kc5 d8N h1N d6 h2 Rc3+ Kb4 d7 Qc5 Ng5 Qb5 Bd5 Ng3+ Kg2 f1N Ngf3 h1N Ba2 Ne4 Nh2 Nef2+ Qf3 Re4 Qh3 Rh4+ Rf3 Ne3+ Kg1 Nd5 Kg2 Nc7 Rf8 Qd3 Ndc6+ Kc3 Re8 Kc2 Rc8 Qb5 d8N Nh6 Ne5 Kd1 Ndc6 Nf7 Bd5 Nh6 Be6 Nf7 Ba2
3kb1N1/b2bbN2/r1QP2B1/1r1Np1R1/n2N1N1b/1R1p2R1/3qb1KB/3n2N1 b - - 0 1 illegal: No proof kernel
4n3/BN3Nn1/R1PNr1b1/n2R2B1/2rpqN1K/1r1r4/B3QkpN/3n1Nb1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 c4 Kf6 f4 d5 Kf2 g5 Kg3 e5 b4 a5 c5 d3 b6 e4 h5 e3 b7 e2 b5 e1R h6 a4 h7 d2 b6 a3 c6 a2 Rh2 Ra4 Qe2 d1N Rh5 Rc4 Nf3 Qe8 Nh2 Nh6 Nd2 Nd7 b8B Bc5 b7 Bg1 Ba7 d4 b8N Qe4 Na6 Re8 h8N Re6 Nc5 Ba6 Qf3 Re3 Nb7 Rd3 Nf7 Bb5 Bh3 Ba4 Nbd6 Bc2 Ndf1 Rb3 Rb1 a1N Bg2 Rd3 Rb6 Nb3 Ra6 Na5 Be3 Rb3 Qe2 Bd3 Bf3 Bb1 Kg2 g3 Kh3 g4+ Kh4 g2 Rg5 Qc2 Bd5 g3 Rh5 Qe4 Bc1 Kg7 f6+ Kg6 Rf5 Rcc3 Bc4 Rd3 Rd5 Bc2 Nd8 Bb1 f7 Nf6 N8b7 Ne8 f8N+ Kf6 Ng6 Nf5+ Kh5 Bc2 Ne5 Nfg7+ Kh4 Bb1 Nc8 Kf5 Nf7+ Qe5 Be3 Ke4 f5 Bc2 f6 Qf5 Bf2+ Kf4 Ncd6 Qe4 Ng5 Bb1 f7 Bc2 f8N Bb1 Qh5 Bc2 Ngf7 Bb1 Ng4 Kf3 Be3 Bc2 Bf4 Bb1 Ngh2+ Kf2 Qe5 Qe3 Nh6 Rb4 Nhf7 Ra3 Qe4 Rb2 Nf3 Bh2 Bb8 g1R Kg5 Ra4 Bb3 Rc4 Ba2 Rb3 Kh4 Rh1 Bh6 g2 Bg5 Qe1 Ng6 Bg1+ Kg4 Qe3 Nf4 Rh3 N3h2 Rf3 Qe5 Bg6 Kh4 Qe1 Ba7 Rfd3 Bf6 Qe3 Qh5 Qe2 Bg5 Qe4 Qe2+
r4bBR/3NbPBn/b2N2n1/N1krB3/2p2b2/1Q2qnpN/N1K2N1R/6n1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kd7 d4 Kd6 Kd2 c5 h4 g5 b4 a5 f5 e5 f6 e3+ Kc2 e4 h5 g3 h6 a4 b6 e2 h7 e1B b5 g2 b7 g4 b6 g3 Bh6 a3 Nd2 a2 Bc4 e3 Nh3 g1N Ne4+ Kd7 d6 Kc6 d5+ Kd7 Rh2 e2 Bg7 Ra4 Nef2 Nc6 b8B Ra3 b7 Qb6 Bb3 Kd8 d7 Ra8 Be5 Bb4 b8N Nce7 Rc1 a1B Qd3 Nf3 Rch1 Ng6 Ba2 Ng1 Qa3 Bd6 Qb3 Kc7 d8N Ba6 Nb7 Ba3 Na5 e1N+ Kb1 Qa7 Nd7 Nef3 Kc2 Bc1 Bb2 Bf8 d6+ Kd8 Be5 Bf4 Qc3 Qb6 Bc4 Bb2 Qb3 Ba3 Be6 c4 Bd5 N8e7 Be6 Rg8 h8N Nd5 Nf7+ Kc8 Nd8 Qa7 Ndc6 Qe3 Nb4 Be7 Bf7 Rd8 Bg8 Bf8 f7 Nf6 Na2 Nh7 Nb6+ Kb8 d7+ Ka7 Bd6 Rdb8 Bde5 Bae7 d8N Rc8 Ndb7 Rc5 Nd7 Rb5 Nb8 Kb6 Nd6 Kc5 Ng5 Nf6 Rh8 Nh7 Rh2 Rb7 Ngh3 Rd7 Nf5 Rd3 Nd6 Rd5 Nd7#
2RrR2q/2K1p1R1/6r1/R1N3Bk/2brnr2/nqp1P1r1/R5R1/2NQnBB1 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 h4 dxc4 Bh3 Bh6 Bf1 fxg4 Ra3 g3 Ra6 g4 Ra1 Bg5 hxg5 Ba6 Nf3 Bb7 Ng1 Bc8 d4 Kf7 Kd2 Kg6 Ke3 c5 Ke4 h5 Ke5 a5 b4 g2 f4 a4 d5 a3 d6 h4 b6 a2 d7 h3 b5 h2 f5+ Kh5 f6 c3 f7 c4 f8R c2 g6 g3 g7 c3 b7 Na6 b8R Nc7 b6 Ba6 b7 Nb5 Bg5 c1R Rf2 Nf6 g8R Na3 Nd2 Ne4 Rg7 Bc4 Nb3 Qb6 d8B Ra4 Nc5 Qb3 Bb6 Rd8 Rc8 Rc2 b8R Rcd2 Ra8 R2d4 Ra5 Rb4 Rf8 Ra4 Re8 Rb4 Nf3 g1R Ne1 g2 Ned3 Ra4 Nc1 Rb4 Rb1 a1N Rb2 N1c2 Ra2 Ne1 Nb7 Rd3 Bbe3 R3d4 Nc5 Rb6 Bf2 Rf6 e3+ Rf3 Bd3 Rf1 Rg1 h1Q Be2 R4d5+ Ke6 Qh4 Rh1 g1R Rh2 Rg3 Rg2 Rg1 Bf1 Qh1 Qd4 Rf4 Qd2 Kg4 Qc2 Qh8 Qd3 Kh5 Qb1 Rh1 Bg1 Rhh4 Qc2 Rhg4 Qd1 Rd4+ Ke5 Nf6 Bh4 R8d5+ Ke6 Ne4 Bf6 Nd6 Kd7 Ne4+ Kc7 Rd8 Rae2 Rg6 Bg5 Rh4 Rb2+ Rhg4 Rbe2 Rf4 Ra2+
b1k2nr1/2p3Nr/1pQ1r3/1R1R3N/q1nr2N1/2P1rn1K/1Rr1NNB1/4B2N b - - 0 1 legal: proof: g4 a5 d4 g5 h4 e5 dxe5 f5 b4 axb4 Be3 Be7 Bf4 fxg4 Bc1 g3 Qd4 g4 Qd1 Bg5 hxg5 Kf8 Bf4 Ke7 Bc1 Ke8 a4 d5 f4 Kd7 e4 h5 g6 b3 a5 g2 Kf2 b2 Kg3 d4 f5 d3 a6 d2 e6+ Ke7 f6+ Ke8 g7 b6 e5 Ne7 g8N Qd4 c3 Kd8 f7 Ng6 f8N Nh4 a7 Qc4 e7+ Ke8 Ra5 Qa4 Nh3 g1N Rd5 Ng2 Rh2 Rh7 Qf3 d1R Ne6 Rd4 Nef4 Ne3 Bd2 Nc4 Nh6 Bb7 Bg2 Nd7 Nf2 Nf8 Be1 Bc6 Nd2 b1R Kh4 g3 Nde4 Rb2 Nh1 Rc2 Ne2 Rd8 Rb5 Kd7 a8R Re8 Raa5 Ba8 e6+ Kc8 Ng4 Rh6 Qf6 Nf3+ Kh3 h4 Nef2 Rh7 Rd5 Rh6 Rab5 Rh7 Bf1 g2 Qh6 g1R Bg2 Re4 Qg6 Re3 Qe4 Rd8 e8N Rh6 e7 Re6 Nef6 Rd7 e8N Rdd6 Re5 Rd4 Bf1 Rg2 Nh5 Rg1 Qc6 Rg2 Nh6 Rg7 Nhg4 Rg8 Kg2 h3+ Kg3 Reg6 Neg7 Re6 Rg2 h2 Red5 Rh6 Kh3 Rh7 Nhg3 h1R+ Rh2 Re6 Bg2 Rf1 Ngh1 Rg1 Bd2 Rd1 Be1 R1d3 Re5 Re3 Rf5 Qa7 Rfd5 Qa4 Nf4 Re8 Ne4 Rgh8 Bf1 Rc1 Rhb2 Re6 Bg2 Rc2 Nef2 Rg8 Ne2
RN1n3r/2b1qN1n/2p5/Nkpr1p1R/1NnQ4/P2B1b1K/2N3B1/B1rb2N1 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 e5 fxe5 h5 g4 d6 c5 dxc5 gxh5 Be6 Nc3 Bg4 Nb1 Bc8 Kf2 Kd7 Kg2 Kc6 d4 f5 h4 b5 e4 g5 h6 g4 h5 b3 e6 g3 h7 b4 e5 b2 d5+ Kb6 e7 b3 e8N Qh4 d6 Ra5 h6 Qd4 e6 Qa4 e7 Qd4 d7 Nf6 d8N Ne4 Bd3 Ra3 Nf6 Qe3 e8B Nc6 Kh3 Bd6 Nb7 Nd8 Na5 Bb7 Bc6 Ra4 Qd2 Rd4 Na3 b1N Nc2 Rd5 Bb2 Na3 Bd4 Nc4 Nd7+ Ka6 Nb8+ Kb6 Bf6 b2 Qf2 Qe2 Qd4 b1B Bg7 g2 Bf6 Rf8 h8N Be5 Nf7 Rh8 Bg7 Nf6 h7 Bd6 Rh2 Qe7 Ne5 Ba8 Bb7 Kb5 Nec6 Bf4 N6b4 Bd6 Ne2 g1R Rh1 Rc1 Ng1 Rf8 h8N Nh7 Nf7 Rh8 a3 Ba2 Rb1 Bb3 Rb2 Re5 Bg2 Bf3 Bf6 c6 Rb1 Bc7 Rh2 Rf1 Re1 Rd5 Re4 Qf8 Re8 Qe7 Qf4 Rd1 Ne1 Ka4 Kh4 Bg4 N8a6 Nb7 Ra8 Ra1 Nb8 Bbd1 Nec2 Nd8 Kg3 Rb1 Ba1 Kb5 Rh5 Bgf3 Kh3 Rc1 Qd4
1nq1Bn2/1b2p3/1b6/pBN1rBR1/r2P4/kB1b1r1B/2N1R1pQ/2KNB2n b - - 0 1 illegal: No proof kernel
2nBk1B1/b3p3/K1pq1p2/3NQb1r/nB1B3P/1rN3RR/2R1r3/nBbB4 b - - 0 1 illegal: No proof kernel
1BB1b3/2B3NB/n2pNKB1/2P4q/B3kp1R/1N2pn1q/RQ1n1b1b/1r4r1 b - - 0 1 illegal: No proof kernel
1q2B2N/2p4q/2b1p1pP/KR2N3/2R1BQ1N/bNB1nrn1/n7/1NkN1rb1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 d4 Kf6 Kd2 b5 f4 b3 Kc3 e6 a4 b2 a5 g3 h5 g2 h6 Bd6 a6 Ba3 a7 Bf8 d6 Be7 Kb4 Bf8 d5 Qd7 Rh4 Qc6 Qf3 Qa6 Ne2 g1B Bd2 Bf2 Nec3 Bd4 Ra5 Bb7 Nd1 Nd7 Bc3 Nc5 d7 Ne4+ d6 Ne7 d8N Ng3 d7 Bc6 Nb7 Qb6 Nc5 Qb8 d8N Rg8 Nf7 Nd5+ Kb3 b4 Ne5 Bf2 Rb5 Ne3 Ka4 b3 Ka5 Bg1 Bd3 Be7 Be4 Rd8 Qf2 Rd2 Qf1 Rf2 Rg4 Rf3 Qc4 Qc8 Qa4 Rb8 a8B Qd7 Bb7 Rf8 Bc8 Qd8 Bd7 Qb8 Be8 Bd6 Nb7 Ba3 Nc5 Ke7 f6+ Kd6 f5 Rf1 Bc2 Kd5 f7 Rf3 f6 Rf1 Nd2 b1Q Qf4 b2 Bg6 Qd3 Rh4 b1N Be4+ Kd6 Ncb3 Rf3 Ba1 Nc3 Nb1 Na2 Bc3 Rf1 Bf3 Qh7 Be4 Rh8 f8N Rf3 Nfg6 Rf8 f7 Rf1 Rb6 Rf3 Na1 Kc5 Nh8 Rf1 Bd2 Kd4 Rb5 Rg8 f8N g6 Nf3+ Kc4 Nd7 Rf8 Bc3 Rf6 Nb3 Rf8 Bd5+ Kd3 Nde5+ Kc2 Rg4 Rf5 Nh4 Rf7 Qg5 R7f3 Rc4 Nb4 Qf4 Na2 Nc5 Kc1 Be4 Qc8 Na4 Qd8 Nc5 Qb8 Nb3+
6nb/3PB1NR/2KBNp2/2N1p1b1/p3r2R/1QNb1Nr1/3k3N/qBbn2b1 b - - 0 1 illegal: No proof kernel
R7/BRp2rqN/n2n1N2/3BNPb1/2n2p1n/knQB2rb/B2pB3/4B2K b - - 0 1 illegal: No proof kernel
4B3/q4RbK/1B4p1/1N1pN1PR/RnQ5/N1r2bbk/RR1r2pn/b1r2R2 b - - 0 1 illegal: No possible last move, all moves rejected
1k1q4/bb4Rb/1P1Q4/1RRn1rn1/2rBpN1n/2N1Rp1B/1n1p1R2/KB5R b - - 0 1 illegal: No proof kernel
n2QK2R/b1p1bB2/NR1p3r/2NBbB2/2n1nk2/BrR3p1/2P2q2/b1B4B b - - 0 1 legal: proof: e4 f5 b4 fxe4 g4 a5 bxa5 h5 Bg2 hxg4 Bh3 Rh6 Bf1 Rh8 d3 e5 Bg5 e3 Bh3 e4 Kf1 b6 Kg2 e2 Bc1 e3 Kg3 Bc5 Bf1 Bf8 Kg2 Bb7+ Kg3 Be4 dxe4 Na6 Kg2 Nb8 f4 Ke7 Kg3 Kf6 h4 g5 a4 b5 e5+ Kf5 e6 b4 h5 b3 e7 b2 e8B Nc6 h6 Nb8 h7 Ne7 a6 Rg8 h8R Rg6 a5 Nd5 a7 Na6 Nd2 b1N R1h6 Qb8 Ngf3 Be7 Bh3 Na3 Nd4+ Kf6 f5 Ke5 f6 Nb6 f7 Nc5 f8B Nac4 a6 Qb7 N4b3 Rb8 a8B Qa7 Bh1 Na8 Ne4 e1B+ Nf2 e2 Bf7 Rc6 Ra3 Bc3 Ne4 Ba1 Qd3 Qb6 a7 Rg6 Qd1 Qf6 Qd2 Qf5 Qd1 Ra6 Rb6 e1B+ Nf2 Bec3 Ne4 Nd3 Qd2 Nf2 Nbc5 Bd4 Rc3 Qf4+ Kg2 g3 Bf5 g4 Qd3 Qe3 Qd1 Kf4 Qd2 Ra3 Na6 Rb3 Nec5 Be5 Qd6 Ne4 Qf6 B7d6 Qd8 Be7 Rg6 Nab6 a8B Rc8 Bc6 Na8 Bcd5 Rcb8 Rb6 Qd2+ Kg1 g2 Kh2 g3+ Kh3 g1B Rc6 B7d6 Kh4 Be7+ Kh5 R8b6 Kg6 Bgd4 B7e6 Be3 Kf7 Qf2 Rd6 Rc6 Ke8 Rcb6 Bf7 Rc6 Rg6 Rf6 Rg7 Rh6 Rg6 Qd2 Nb7 Ba7 Rb6 Qe3 Nbc5 d6 Ba3 Qf2 Bg7 Rh4 Bh6+ Bg5 Bf8 Be7 Bh7 Kg5 Bh6+ Kg4 Bhc1 Rh6 Bcb2 Kg5 Bf5 Kf4 Bc1+
nb1BnB1B/8/2k1r2B/1b1p1q1p/qQqBp3/r6q/1R1N1RP1/1B3NKR b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 h5 Kf2 a5 b4 e5 c4 d5 c5 Kd7 b6 a4 b5 h3 f6 e4 b7 a3 c6+ Kd6 f5 h2 c7 a2 f7 d3 f6 d2 b6 Bd7 c8R Bc6 Qb3 d1Q Nf3 Qc2+ Nbd2 Qb2 Bd3 Qe8 Rb1 a1Q Qb4+ Kd7 Kf1 Ba4 Rc2 Qb3 Rbb2 Bd6 f8B Qe5 f7 Na6 b8B Qf5 b7 Nc7 Bh6 Bb5 f8B Nf6 Ba7 Qaa4 b8B Nfe8 Bd4 Qc4 Kf2 Be5 Nf1 Kc6 Bcg5 Ra6 Re2 Na8 Bb1 Bd6 Bba7 Bb8 Bd8 Rg8 Rec2 Rg6 Bh8 Re6 Bad4 Ra7 Rg1 h1Q Re2 Qg5 N3d2 Qh3 Rh1 Qgf5+ Kg1 Rg7 Bc3 Rg3 Bcd4 Ra3 Rf2
q3Q1Rk/1q1b1p2/2p3r1/R4RN1/2bRR1pN/1n1N1Pr1/Bn4bR/2b3KB b - - 0 1 illegal: No possible last move, all moves rejected
r1Bb2bk/3p1Rqp/qN1n2N1/1rNBp3/1N4rP/3nN3/NQ1R2r1/R2K4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 g5 exf5 Na6 f6 Nb8 f5 Bb7 Bd2 Bc8 Bf4 gxf4 g4 Kf7 b4 e5 c4 a5 h4 a4 g5 d3 b6 f3 c5 a3 b7 a2 b5 Nc6 b8N Nce7 c6 Ba6 g6+ Ke8 c7 Ra7 c8N Rc7 b6 Rc6 b7 Bb5 g7 Kf7 Nh3 Rb6 Nc6 Bc4 b8N Rb5 Rh2 Nh6 Qb3 Kg8 Kd1 d2 Nb6 f2 Nf4 Nc8 Nb4 Be7 Nc3 Ng4 Qb2 Qf8 Nfd5 Bd8 Ne3 Nd6 N8a6 Bf7 Nc5 Qe7 Rb1 a1Q Nca2 Bd5 Bg2 Bc4 Bb7 f1R+ Kc2 d1R Rd2 Qf7 Bc8 Rf4 Rc1 Re1 Rb1 Re2 Kd1 Qg6 Rc1 Rg2 Rb1 Kf7 g8B+ Kf8 f7 Kg7 f8R Nf2+ Kc2 Rfg4 Bd5 Rg8 Rf7+ Kh8 Rh1 Qh6 f6 Qg7 Rg1 Qf1 Rh1 Qe2 Ra1 Qd3+ Kc1 Qa3 Kc2 Nd3 Kd1 Qa5 Re7 Re8 f7 Qa7 f8N Qa6 Bc6 Bg8 Rf7 Bg5 Bd5 Rd8 Bcb7 Ra8 Bc8 Bd8 Ng6+
1B3RrQ/p3N3/5Bn1/1qp2R2/2r1qnNN/P4b1b/1kp2nBK/N1N1n2N b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Bh6 Be3 fxg4 Bc1 g3 Bf4 g4 Bc1 Bg5 hxg5 Bb7 Qb3 Ba6 Qd1 Bc8 f4 Kf7 b4 Ke6 e4 h5 g6 c5 g7 d5 b5 g2 Kf2 h4 a3 d4 f5+ Kf7 f6 Ke6 b6 h3 Kg3 c3 b7 d3 f7 h2 f8N+ Ke7 e6 Kf6 e5+ Kf5 e7 Ke4 e8N Kd4 e6 d2 e7 c2 Ng6 Rh4 Nf6 Nc6 e8N Qd5 b8B Nce7 Nh5 Qe4 Nef6 Nd5 Ne2+ Kc4 Bb2 Kb3 Qc1 g1Q+ Bg2 d1N Qh6 Nge7 g8N Nf2 Qh8 Qf1 Bd4 Nf4 Nc1+ Kc4 Rg1 h1B Bc3 Qfe2 Rd1 Be6 Rd5 Bd7 Rf5 Bc8 Bh3 Bf3 Kh2 Q2d3 Ng3 Qde2 Nf8 Neg6 Ne7 Q2d3 Nh1 g3+ Kg1 g2 Kh2 g1N Ng4 Qd7 Bg7 Qb5 Bf6 Ne5 Nd2+ Kc3 Nfg6 Kb2 Ndb3 Bd7 Bc7 Rg8 Bd6 Ng2 Bc7 Ne2 Bb8 Nef4 Rb1+ Kc3 Na1 Ne1 Rb4 Bc8 Rd4 Kb2 Rd8 Bd7 Rf8 Be6 Bg7 Bd7 Nf6 Rg4 Nh4 Neg6 Bg2 Rg3 Rg5 Bh3 Re5 Rg5 Ng4 Rf5 Rd5+ Rf6 Re5 Ra6 Bf6 Ra4 Rg5+ Rd4 Re5 Rc4 Rf5+
4q1NB/pp1qP1N1/R1b3B1/Q1B4K/R1k2p2/B2rbNqn/n1q3BB/5r2 b - - 0 1 illegal: No proof kernel
1nbNBN2/3N2rQ/5R2/p1N3pq/N1qn3p/P1kBNRr1/q4B2/2nn1K2 b - - 0 1 legal: proof: g4 c5 e4 d5 b4 dxe4 bxc5 g6 g5 Bg7 h4 Bd4 h5 Bg7 h6 f6 hxg7 fxg5 Ba6 g4 Be2 Kf7 Bf1 Ke8 d4 Kf7 c4 Kf6 f4 b5 f5 a5 a3 h5 d5 Ke5 d6 b4 c6 g5 d7 e3 c5 g3 c7 b3 f6 g2 c6 b2 f7 e2 f8N Nf6 g8B Ng4 Be3 Ra7 Qc2 Qe8 d8N Nf2 Bf7 Nd1 Nh3 g1Q Qh7 Qg4 Nc3 b1Q Na4 Qc4 Nf2 Qba2 Ne4 e6 Bb6 h4 Nec5 Kd4 Rh3 e5 Rf3 e4 Bg6 Rg8 Rb1 Rg7 Rbb3 Qef7 Rf6 Rb7 Rbf3 Qe8 Ba7 Rb3 Bh5 Qg6 Bb6 Qh6 Be8 Qh5 Ba7 Ne3 Kf2 e1N+ Be2 N1c2 Bd3 Nd1+ Kf1 e3 Bb6 Bb7 c8N Ba6 Nd6 Bc8 c7 e2+ Kg1 e1N Kf1 Ng2 Ba7 Nf4 Bb6 Ne2 Nf5+ Kd5 Ba7 Nc1 Ne3+ Kd4 Bb6 Bb7 c8N Rc3 Ne7 Bc8 Neg6 Rb3 Nfd7 Rc3 Nb2 Rb3 Ngf8 Kc3 Bc7 Nd4 Bg3 Rb6 Bf2 Re6 Ng6 Re4 Ngf8 Rg4 Re6 Rg2 Ref6 Rg3 Nba4+
1R6/rqNB1RBP/1p1p1K1Q/2Bq2B1/ppnB1N2/r1RB2bb/2nk4/6q1 b - - 0 1 illegal: No proof kernel
2B1q1NK/3B3p/2QPB1rN/b1rnNbR1/BB1pp1p1/1R3n2/1rq5/B4k2 b - - 0 1 illegal: No proof kernel
B3qQ1R/qpK1Bq2/2BB2p1/1bp5/1N1BrB2/n2n2kN/2P1R1pN/2r1b3 b - - 0 1 illegal: No possible last move, all moves rejected
K2B3q/3QN2R/N5nB/1Rb1p2b/B3k3/p1pq1p2/2P1B1BR/bq2B1nr b - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 g4 d5 h4 dxe4 h5 Ra6 g5 Rg6 hxg6 Bg7 Rh2 Bh6 Rh1 Bf8 Ke2 Kd7 b4 Ke6 d4 Kf5 g7 h5 d5 c5 b6 a4 g6 f6 b7 h4 d6 e6 b5 f3+ Ke3 h3 d7 a3 b6 f2 Nc3 h2 Nge2 c4 Kd4 e3 Nf4 e2 Na2 e1B Nb4 c3 Bg2 f1Q Na6 Qf3 Nd5 Bb4 Bh6 Ne7 g8B Bd2 g7 Ng6 Rb1 Qf8 d8B Nd7 b8B Nde5 b7 Bc1 Rb3 Bd6 Rb5 Bb2 Bbc7 Qe2 b8R Ba1 R8b7 Be7 Bd6 Qd3+ Kc5 Nf3 Kc6 Ng1 Bg3 e5 Be1 Bc5 Kc7 Bd7 Kb8 Be8 Ka8 Rh7 Bf7 Qh8 g8B Bc6 Bf1 Be8 Be2 Ke4 Ne7 f5 Bb3 f4 Ba4 f3 Bc4 Nf8 Be6 Bh5 Bh3 Ng6 Bg2 Nh3 Rf1 h1Q Rf2 Qf1 Ra7 Ng1 Rab7 Qc4 Qd7 Qd3 Bed2 Qb1 Be1 Bb4 Bh1 Bd6 Rh2 Bc5 Bg2 Bb2 Nf5 Qf6 Be3 Qbd1 Qf7 Bg4 Rh3 Ba1 B3d2 Rh5 Bh6 Qb1 Qe6 Rh4 Rh7 Bh5 Ne7 Qf8 Qd7 Qh8 Rg3 Rh2 Rh3 Rh1 Rh2
1b2q1k1/r1p3B1/R2R4/RR1pN2q/pNb2pnR/K1PB2Q1/2r1B2R/1qr5 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 a4 exd4 axb5 Ke7 g5 Ke8 h5 Nc6 Ra6 Ne5 Ra1 Ng6 hxg6 Bh6 Bd2 Bg7 Bc1 Bf8 Kd2 f5 b4 h5 e4 d5 b6 a5 b5 f3 g7 Kf7 c3 h4 Kc2 h3 Kb3 f2 e5 h2 g6+ Ke6 b7 d3 b8R d2 b6 Rh4 b7 Re4 Bd3 f1R Qe1 Be7 Nf3 Qd7 Qg3 Re3 Na3 d1Q+ Nc2 Nh6 g8R Bd8 g7 Kf7 e6+ Kf6 e7 Kf7 Ka3 Ra7 Rh8 Ng4 g8R Qe8 Ra8 Re2 b8R Ba6 Rh4 Bc4 Bh6 f4 Rb5 Qb1 Nb4 Rc1 Rg6 Rec2 Bg7 Kg8 Ne5 a4 Ra6 Rf1 Ra2 Rfc1 Re1 h1Q Rb2 Qg6 e8B Be7 Be2 Qc6 Bg6+ Qe8 Bgd3 Bc5 Rd6 Qh2 Rh1 Be3 Rhh6 Qh5 Rh4 Rb7 Raa6 Ba7 Rba5 Bb8 Rb3 Ra7 Rh2 Qg5 R6h4 Qgh5 Na2 Qc6 Rbb5 Qce8 Nb4
2b1n3/1NNp2p1/qRnkp1Br/N1R3Pn/K6B/2Bq2rN/4p1N1/N2nQ3 b - - 0 1 illegal: No proof kernel
BB4kb/Nbp4p/1PnQBB2/p1K2B1R/N3Bp1R/p5n1/5rr1/R3b1q1 b - - 0 1 legal: proof: f4 b5 h4 d5 c4 dxc4 a4 g5 hxg5 e5 fxe5 bxa4 Kf2 f5 Ke3 Kf7 d4 a5 b4 c3 g4 c2 e6+ Kg7 e7 a3 e8R Ne7 g6 Qd6 g5 Bb7 b5 Ra7 d5 f4+ Kd4 Nd7 e4 Ba6 e5 Nf6 e6 Neg8 e7 Ra8 Bd3 Nh5 Bf5 Qc6 d6 Bb7 d7 Ngf6 d8B Ng3 Ne2 Qg2 Rh4 Rc8 Nbc3 Qg1+ Be3 c1B Kc5 Ba8 Qd6 Ng8 Na4 Rb8 Nd4 Nf6 Nc6 Nf1 Na7 Kg8 g7 Kf7 g8B+ Kg7 g6 Ng3 Bd5 Ng4 Bde4 Kg8 g7 Bb2 Bf2 Ne5 Bd4 Kf7 g8B+ Kg7 Bb3 Bb7 Bbe6 Rg8 Bf2 Kh8 Be3 Bg7 Rf8 Bc3 e8B Bd2 Bf6 Nc6 Bh5 Rd8 Bhf3 Be1 Rf7 Rge8 Bed4 Kg8 Bh1 Bh8 Re7+ Kf8 Rg7+ Re7 Rg5 Re8 Rgh5 Rd8 Qe5 Rg7 Bf2 Rd2 Qd6+ Ne7 Be3 Rf2 Bhf3 Bc8 Ba8 Bb7 B3e4 Ne2 Nc8 Rf7 Kc4 Rg7 Ba7 Rgg2 b6 Ng3 Kc5 Nf1 Qd7 Ng3 Bb8 Nc6 Qd1 Nd4 Na7 Nc6 Bc8 Kf7 Qd6 Kg8 Bce6#
2kN4/1q2r1q1/1N2p3/B2R1p1B/1K1B1p1Q/p1r1pbnP/3b2BR/BN2n2B b - - 0 1 illegal: No possible last move, all moves rejected
3nB2R/3R1npp/N2B1p1B/5k1q/r1Br1p2/2N3Pp/BR3KBq/1rb3Q1 b - - 0 1 illegal: Other
b4q2/4NR1K/6pp/BbNrB1Bk/B3Nq2/b4P2/nNp1B3/1QR5 b - - 0 1 legal: proof: b4 a5 e4 f5 exf5 b5 c4 d5 cxd5 e6 d4 e5 a4 axb4 axb5 Qd6 Ra4 Qd7 Ra1 Qd8 h4 exd4 h5 g6 h6 Nc6 f3 Ne5 f4 Nf3+ gxf3 Ra6 Rh3 Rf6 Rh5 Rf7 Rh1 Rg7 hxg7 Ke7 Be2 Kd7 Bf1 Ke8 Kd2 Kf7 d6 c5 d7 d3 Ke3 c4 f6 c3 f5 d2 Kf4 b3 Kg5 b2 b6 c2 b7 Qb6 b8N Qc5 d8B Qa5 Nh3 Bb4 Be2 Qd5 Nc6 Bd7 Nf2 Qe6 Na3 b1Q Nc4 Be8 Ne7 Qe4 Nb2 Qe5 Ba5 Qh2 Ne4 Ba3 Qe1 d1B Bcd2 Qa2 Rc1 Qd6 Bdc3 Qc4 Be5 Qc8 Rh4 Bd7 Rf4 Bc6 Qb4 Qf8 Qb6 Ke8 f7+ Kd7 f6 Ke6 Rf5 Ba8 Qb3+ Qd5 Qa2 Qc4 Qb1 Qd4 Nc8 Ne7 Kh6 Nd5 Ne7 Nb4 Rf4 Qb8 f8B Na2 f7 Qe3 g8B Qe8 Bfg7 Qf8 Bf6 Qd4 Bg5 Qc4 Bf1 Be2 Rf5 Bd3 Be2 Qc7 Rf4 Bb5 Rf5 Qfc8 Bgc3 Qf4 Kg7 h6 Be5 Kd7 f8N+ Ke8 Ne6 Kd7 Bf7 Rd8 Bg8 Ke8 Bf1 Rd5 Be2 Kd7 Kh7 Qf8 Nc7 Kd8 Na6+ Ke8 Bf7+ Kd7 Be8+ Ke6 Nc8 Rd8 Rf7 Rd5 Rd7 Kf5 Nac5 Ba6 Ra7 Bd3 Ba4 Bb5 Rd7 Qg4 Bgd8 Qh4 Rf7+ Qf6 Ned6+ Kg5 Nde4+ Kh5 Be7 Qh4 Bg5 Qf4 Ne7
k5BQ/1q1qbR2/qq2b3/3N2Q1/2rQKBr1/r1N2P2/4Q3/R2Qbb1Q b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 h4 gxh4 c4 f5 b6 f4 b5 Nf6 b7 Nd5 cxd5 f3 Nxf3 Bg4 b6 Na6 Ng1 Bf5 Bxa6 Be6 Bf1 Bc8 Ke2 Kd7 Ke3 c5 b8Q h5 d4 a5 g4 e5 g5 h3 b7 h2 g6 c4 g7 h4 g8Q c3 d6 Kc6 d7 h3 Qd2 c2 Ba6 a4 Qg7 a3 Qa7 a2 b8Q Be7 Nc3 Qb6 d8Q Rh4 Nb5 Rg4 Bb2 c1R Qh7 Rc4 Ne2 Be6 Rhf1 h1Q Nec3 h2 Qe2 Qg2 Nd5 h1B Bc1 Qh3+ f3 Bg2 Re1 Bf1 Nbc3 Qb7 Qdh8 Qb6 Qbg8 Qb7 Rb1 a1Q Qg5 Qab2 Ra1 Q2b6 Rd1 Qh6 Rd3 Qg7 Qh1 Qf6 Kd2 e3+ Kc2 e4 Rd1 Rc5 Bc4 Qd7 Qa4+ Kb7 Bd2 Rcc8 Qb3 Kb8 Ra7 Qh6 Rda1 Qg6 Rc7 Ra3 Qb1 Ka8 Qbd1 Qdc6 Rd7 Qcb7 Bc1 Qe8 Ba2 Rc4 Bd2 Bf6 Rf7 Be7 Nf4 Rc8 Qd3 e2 d5 e1Q d6 e3 d7 e2 d8Q Bd5 Rh7 Bf7 Qd8d4 Qed7 Q3e3 Kb8 Kd3 Ka8 Be6 Bg8 Nd5 Rc7 Qf2 Rc5 Bf4 Q6a6+ Ke4 Rc4 Qc2 Qeb1 Bf7 e1B Qe2 Q1b6 Qcd1 Qb8 Bg6 Be6 Bf7 Qbc8 Bg8 Qcb7 Rf7
7N/p3R2r/K1pn4/4r2R/NrP2Nk1/2Bqb2R/qRp2n1N/N2BQ3 b - - 0 1 legal: proof: e4 e5 a4 d5 g4 h5 gxh5 b5 axb5 f5 exf5 d4 c4 Qd6 Qb3 Qd8 Qc3 dxc3 d4 exd4 b6 Na6 b7 c6 bxc8Q Rb8 Kd1 Rb5 Ke1 Rd5 Qa8 Rc5 h4 Ke7 f4 Kf6 b4 g5 b5 g4 b6 c2 Kd2 g3 h6 g2 b7 d3 Kc3 d2 b8R d1Q h5 Qe8 h7 Nc7 Kb4 Nb5 Ka5 Bd6 h6 Qe3 Bd2 Qf2 Ka6 Qde2 Nc3 Na3 Re1 Bc7 Rh5 Qg3 Nf3 g1R Na4 Rg2 Rb2 Bd8 Bc3+ Qe5 Be2 Be7 Qe8 Bd6 Bd1 Qd4 Re7 Nb5 Rh3 Qe1 Rg3 Qg1 Qh5 Bb8 Qh1 Qh2 Be2 Qg1 Rh3 Qc1 Bd1 Re2 Qe1 Bc7 Nd2 Be5 Nb3 Qf2 Na1 Qh4 Re6+ Kf7 f6 Kg6 f7+ Kh5 f8N Qb1 f5 Nd6 f6 Kg4 f7 Qg3 Ng6 Bf4 f8N Qa2 Nh4 Rb5 Re7 Nf6 Ne6 Qd3 Nf3 Bc1 Nf4 Rb4 Rf7 Re5 Re7 Ra8 h8R Be3 h7 Nfe4 Rf8 Nf2 Rf5 Rg8 h8N Rg7 Rfh5 Rh7 Nh2+
7Q/N2R4/NK2pp1N/N1Q4r/q2qNRpq/2N1n1p1/3B2PB/3rrk2 b - - 0 1 legal: proof: b4 b5 f4 h5 e4 d5 a4 a5 f5 c5 f6 d4 Be2 Kd7 Bg4+ hxg4 d3 Nc6 axb5 a4 Nf3 e6 Ng1 Na5 bxa5 Be7 fxe7 Ba6 Nf3 Bb7 Ng1 Bd5 exd5 c4 Ra2 cxd3 Ra3 Rh4 Ra1 Rh8 Kd2 Kd6 e8Q Ke5 h4 Ke4 c4 g5 c5 f6 h5 a3 d6 a2 b6 Rc8 d7 Rb8 c6 Qc7 d8N Qf7 h6 Ne7 h7 Nd5 c7 Rf8 c8N Nb4 h8N Nd5 b7 Nb4 a6 Qd7 a7 Qh7 a8N Nc6 Nh3 Qg6 Rf1 Qg7 Qc2 Qh7 Nc7 Na5 Qc5 Qh4 Nhf7 Rh8 Nc6 Rh5 N8a7 Rc8 b8B Nc4+ Kd1 d2 Ke2 d1R Bd2 Rd8 Nh6 Ne3 Na5 Rd5 Qd8 Re5 Nf2+ Kf4 Kd3 Kg3 Nc3 Kh2 Qh8 g3 Na6 g4 Bc7 Re4 Bb6 Ree5 Rb1 a1Q Rb4 Qa4 Rc4 Rc1 Rd1 Rd5 Ke4 d3 Rb4 Rde5+ Kd4 Rb1 Qd5 Rc1 Kc5 Ra1 Rf4 Rb1 Be1 Kg1 Rd2 Qd4+ Kc6 Ra1 Qc5 Kf1 Rd1 Nf5 Bd2+ Re1 Rb1 Ne3 Rb4 Qe5 Rbd4 Rad1 Rd7 Qd4 Bd8 Qc4 Kb6 Qa4 Bc7 Qd4 Be5 Qa4 Bd4 Nc2 B2e3 Ra1 Bc1 d2 Be3 d1Q Nd3+ Qf3 Bg1 Ne3 Nf2 Qfd1 Bh2 Qdd4 Bd2 Rad1 Nfe4+
nR1k1n2/R3N1Bq/5N1N/B3NRK1/b1rbbrb1/bR6/1QN3P1/6rq b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 h4 Bf8 b4 g5 hxg5 a6 e3 Qd7 b6 Kd8 b5 Ke8 b7 Qd6 b6 Qd8 Bb5+ axb5 Kf2 c5 Kf3 h5 d4 f5 g6 b4 e4 h4 d6 b3 e5 b2 d5 c4 g7 c3 e6 h3 e7 h2 Qf1 c2 Qb5+ Qd7 Ra4 Nf6 g8N Bg7 Na3 b1B Ra7 Nh7 Bb2 c1B Nh6 Bd4 Nc2 Na6 b8R Nf8 b7 Nc7 Bc3 Ba3 Qb2 Rg8 Ba5 Rg4 Bc3 Qc6 Ba5 Kd7 e8N Kd8 d7 Qg6 Nf6 Qh7 Bc3 Ba2 Ba5 Bb3 Bc3 Ba4 Ba5 Ke7 d8R Be6 Rd6 Bc8 Rc6 Kd8 d6 Rh4 d7 Rg4 Ke2 f3+ Kd3 f2 Rb6 f1R Nf3 Re1 Ne5 Rf4 Rf1 h1Q Rf2 Rg1 Rf3 Bc3 Ke3 Rc4 Rf1 f4+ Kf3 Bd4 Kg4 f3 Kg5 f2 Rb3 Ke7 d8N Bg4 Ndc6+ Ke6 Re1 f1B Ne7 Bd3 Rf1 Be4 Rf5 Kd6 Re8 Rc8 b8B Ke6 Rd8 Na8 Rd5 Rb4 Rb5 Rc3 Rbb7 Rf3 Bd6 Rf4 Rb6 Rc4 Bdb4+ Rc6 Bc3 Kd6 Raa6 Kc7 Ra7+ Kd8 Ne8 Bb5 N5g6 Bf2 Bg7 Rc4 Ne5 Bd4 Nf6 Ba4 Rb8#
k4n2/Pqn1RN1n/3NNNNR/Bb1R1n1b/8/nr1Q3K/2n5/1R3nrB b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 g5 f4 gxf4 h4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 Kd7 Kg2 h5 d4 c5 a4 Kc7 f6 b5 a5 Kb7 d6 e5 d7 f3+ Kh3 c4 d5 c3 d6 c2 f7 e4 f8R h4 g7 b3 g6 f2 Qg4 e3 Nf3 b2 Qc4 e2 Ra2 e1N Rf5 b4 Qg4 b3 Rd5 Qb6 d8R Bd7 Rc5 Bb5 d7 Na6 Qa4 Nc7 Re5 Nf6 g8N Rb8 g7 Nh7 a6+ Ka8 a7 Qb7 Ne7 Rg8 Bg2 f1N Nbd2 b1B Nc4 b2 Bd2 c1N Qb3 Ne2 Nd4 Nc2 Ne6 Ned4 Ra1 Ba2 Re3 b1N Ng6 Nba3 Nd6 Bb1 Qd3 Ba2 Kg4 h3 Rb1 h2 Ba5 Bd5 Re2 Bf3+ Kh3 Bh5 Re5 Nf3 Re8 Nf8 d8N Ng5+ Kh4 Ne4 Rd5 Ng5 Re7 Ngh7 Be4 Nd7 N8f7 Ndf8 Rg1 h1N Kh3 Nhg3 Bh1 Rh8 g8N Nf5 Nf6 Rg8 Rg4 Rg7 Rh4 Rg8 Nge5 Rg1 Ng6 Re8 Nc5 Nc4 Ree1 Be2 Qd4 N4a3 Rh6 Bh5 Qc3 Re4 Qg3 Rb4 Re7 Rb2 Ne6 Rb3 Qd3
r2r4/RB3R2/1N4b1/nB2b2R/nn2qR1Q/K2bRbP1/5QRr/k2q1N2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bd6 Ba3 Bh3 axb5 Bf8 b6 Bg4 b5 Bc8 Bb4 axb4 d4 Kd7 Kd2 Kd6 Kc1 f5 Kb2 c5 e4 h5 b7 h4 g6 b3 g7 f3 g3 f2 b6 h3 Nd2 f4 Ra6 f3 Qe2 h2 Nh3 c4 Nf4 c3+ Ka3 c2 Ra7 Na6 b8R c1R b7 Ne7 g8B b2 Qe3 b1Q Bb5 f1B Qf2 Bd3 Nf1 Rd1 Bh7 Nb4 e5+ Kc7 d6+ Kb6 e6 Bg7 d7 Ned5 e7 Nc3 e8R Be5 Rf8 Na4 Rf7 Qh4 d8R Bcf5 Re8 Bg6 Rg1 h1B Rg2 Qd8 Bg8 Rh2 Ree7 Qd5 Rbf8 Qe4 Bh7 Rd2 Rh8 Qd1 b8R+ Qb7 Rbf8 Qe4 Qe3 f2 d5+ Nc5 Qe1 Na4 d6 Kc5 d7 Kd4 d8Q+ Kc3 Nd5+ Kc2 Re6 Kb1 Qh4 Ka1 Bg8 Bc3 Rh5 Be5 Rg1 Bf3 Rg2 Bc3 Nb6 Be5 Ne3 f1N Qf2 Re2 Rf4 Nd2 R8f7 Nb3 Nf1 Na5 Ree7 Rd2 Re8 Bb1 Re6 Rdd8 Bh7 Qed5 Re8 Bgd3 Be4 Qd4 Bec6 Bg6 Ree7 Qe4 Bb7 Bd3 Rc7 Bb1 Rc3 Bc2 Re3 Bb1 Be8 Bd3 Bb5
1r1qNnn1/b4nKN/2kRr3/2b2N2/2B1r3/RN3Q2/1r2B2P/1n1bRNR1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 Kd3 a5 Ke4 c5 Ke5 a4 d4 g4 b6 e6 b4 g3 g7 a3 f6 c4 b5 f3 f7 c3 d6 g2 d5 a2 b7 f2 b6 c2 Ne2 c1N Rg1 Ra5 Ng3 Rb5 Nd2 Rh4 Qf3 Rf4 Nb3 Be7 Be2 f1N Rb1 Nd2 Nf1 a1R f8N+ Ke8 Nh7 Ra8 Ra1 Nb1 Ra3 Bf8 d7+ Ke7 Nbd2 Rb2 Nb3 Rf6 Kd4 Nd3 d6+ Kf7 Ke4 e5 Kd5 e4 Kd4 Qe7 d8R Ke6 d7 Kd6 Re8 e3 d8R+ Nd7 b8N Re6 b7 Ne5 Nc6 Nf7 b8N Qg5 Na6 Rb8 Nc7 Bb7 Bb5 e2 Ne7 e1R Be2 Bd5 Nf5+ Kc6 Re7 Be4 Ne8 Qh4 Qg3 Bc2+ Qf4 Qg5 Qg4 Bd1 Qf3+ Kb6 Kd5 Re4 Re5 Bc5 Ke6 Qd2 Rh1 Kc6 Rg1 Ngh6 g8B Nf8+ Kf6 Ba7 Rh1 g1B Kg7 Bgc5 Rg1 Qa5 Rd2 Qd8 Re7 Nh8 Bgc4 Ng8 Bed3 Re3 Be2 Nf7 Rd3 Bc2 Rd5 Re6 Rd1+ R3e4 Re1 Bd1 Rd7 Qb6 Rd4 Qd8 Rd6+
Rr1BN2R/B5Kn/1b3NN1/1N1nB2B/b2r1Pnn/1k2b3/1q4Q1/4Nq1b b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Kd3 h5 Kd4 c5+ Ke5 b3 g4 h3 d4 c4 f4 h4 f6 b2 b6 c3 g5 h2 d6 h3 d5 c2 b7 Na6 b8B Bd7 Qd3 Nb4 Bc7 Qb8 Qb3 Ba4 Nc3 b1Q Be3 c1B Ba7 Be3 Be2 Qf1 d7 e6 d8B Bfc5 d6 Nd5 d7 Bb6 Qb5 Qb7 Qc6 Rb8 Nf3 Rh6 Rg1 h1B Ne1 h2 Nb5 Rh3 Rg4 Rf3 Rh4 Rh3 Kd6 e5 Rh8 e4 Ke5 Rf3 Kf5 Rf2 Bd1 Rd2 Be5 Rd4 Bf3 Bf2 Qc2 e3 Qe2 Bg1 Qg2 e2 Bg4 Be3 g6+ Kf8 g7+ Kf7 Nd3 e1N Kg5 Ra8 Bh5+ Ke6 Kg6 Rb8 f7 Nf3 Ne1 Ngf6 g8N Nh7 Nf6 Nh4+ Kg7 Qc8 Qb2 Qc1 Qd2 Qb2 f8N+ Kf5 Ng6 Ke6 Ng8 Bg2 Nf6 h1N Qe2 Nf2 Qf3 Bh1 Qg2 Qfe2 Bdc7 Ng4 d8N+ Kf5 Ra3 Qf1 Nf7 Ke6 Bd8 Ne7 Ne4 Kd5 Nf6+ Kc4 Nfd6+ Kb4 Ra1 Nd5 Nde8 Kc4 Rc1+ Kb4 Rc8 Kb3 Bdc7 Rb7 Ra8 Rb8 Bd8
1qNqBn2/2Rn1BbB/2KP3b/2Q5/nB4Nb/2qb4/k3R1Br/2Q3Bb b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Rh3 a4 Rh1 Ra5 bxa5 Bh6 Ra2 Bg7 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 c5 b6 h5 g5 a3 g6 a2 d6 h3 b7 f3 d7 h4 g7 f2 a6 h2 d5 h3 d6 Be7 a7 Bh4 a8B Ne7 g8B Ng6 Bd2 Nf8 Bg2 f1N Nf3 Ne3 Qc1+ Kb3 Nc3 c4 Bh7 Nd5 Re1 h1Q Ne5 h2 Na4 c3 Nb6 c2 Bb4 f5+ Kd4 f4 Kc5 f3 e4 f2 Ng4 f1Q e5 Qff6 e6 Nc3 e7 Qhf1 e8B h1B Re6 Na4+ Kd5 Qc3 Bf7 Na6 b8B N6c5 Bc6 Qb5 Ba7 Ba6 Nc8 Qb8 Bb6 Bd3 Bb5 Qe8 d8Q Ncd7 Qdg5 Qe7 Bg1 Qd8 Qf1 Kb2 Rc1 a1B Qf2 Kb3 Qc5 Ka2 Kc6 Bb2 Rb1 c1B Qh6 Bf4 Rc1 Be5 Rc2 Bg7 Qc1 Bh6 Kd5 Ne5 Bbe8 Ned7 Kc6 Qd2 Rc4 Bbg7 Re5 Qc3 Re7 Ndb6 Rc7 Nbd7 Re4+ Bc4 Re6 Bd3 Bf5 Rh7 Bfe4 Rh8 Bh7 Be3 Ba5 Bhf2 Bhg8 Rh2 Bh7 Bh4 Bb4 Beh6 Re2#
4R2n/qRqBB3/k4Nn1/B1b5/BN1Pq1bN/KnB5/4n3/N2brqQ1 b - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 Kd7 e4 h5 d4 f5 Kd2 c5 Kc2 Kc7 Kb3 Kb6 d6 h4 d7 c4+ Ka4 g2 e5 f4 g6 f3 g7 h3 e6 c3 e7 f2 e8N g3 Ka3 c2 Nf3 g1Q Nbd2 a4 Nf6 g2 Rb1 h2 Nh4 Nh6 g8B Nf7 Nb3 Qc7 d8B Nd7 Na1 Bc5 Bd2 c1N Be7 Nf8 Bc3 Ng6 Qg4 Kb7 b6 Nb3 Bb5 f1B Bd7 Ka6 b7 Be2 b8B Bd1 Qg3 Qe3 Re1 g1N Qg5 Ne2 Qg1 h1Q Bh7 Nf8 Bc2 Qee4 Ba7 Qhg2 Bb6 Ng6 Ba5 Re8 Rb2 Nfh8 Rb1 Ba7 Rb2 Qf1 b5+ Kb7 b6 Ka6 b7 Bc5+ Ka2 a3 b8N+ Ka7 Nc6+ Ka6 Bh3 Bg4 Rb1 Bh5 Bd7 Bg4 Rb2 Nd2 Rb7 Nb3 Kb1 a2+ Kb2 Nd2 Ba4 Nb3 Nc2 Bb6 Ka3 a1Q+ Kb4 Qa2 Na1 Bc5+ Kc4 Qe3 Bf8 Nef4+ Re2 Bf5 Bb6 Bg4 Bd6 Nc1+ Bb3 Qa5 Ba4 Nb3 Rb8 Qa7 Rb7 Ba3 Bd8 Qae5 Bda5 Bc5 Bf8 Qc7 Bd6 Bb6 Kb4 Qef3 Ka3 Qh1 Rc2 Re1 Re2 Qd5 Re8 Ne2 Bdb4 Qe4 Be7 Bc5+ Nb4+
R1R1b1R1/R2nk2N/nR1nN1b1/4q3/1n1nb1q1/2b2N1B/q3PQ2/B3N2K b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 h3 g5 Kd2 h5 Ke1 a5 Bg2 Rh6 Bf1 Rf6 h4 Rf5 gxf5 g4 Bd2 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Bg7 Qd2 Bh6 Qd1 Bf8 Kf2 d5 b4 g3+ Ke1 a4 c4 f2+ Kd2 f3 g6 d3 Ke3 g2 c5 d4+ Kf4 d2 Kg3 a3 Kh2 a2 c6 d3 c7 h4 g7 h3 b6 Qd5 b5 Bb4 f6 Bf5 c8N Na6 b7 Bc3 b8R Bg6 Qa4 d1N Qc4 d2 b6 Nb2 b7 d1B Bh6 Nd3 Ra8 Ndb4 b8R Qe5+ Qf4 Ba4 f7+ Kd8 f8N Bae8 Ra7 Nf6 g8R Nd7 Nb6+ Ke7 Raa8 Qd6 Na3 Qe5 Rb1 a1N Nh7 Nac2 Bg7 Nd4 Bh8 Bgf7 Rc8 Bg6 Kg3 h2 Na4 Bgf7 Nc5 Bg6 Nh3 g1Q+ Bg2 f1B N3g5 f2 Nc2 Nf5+ Kf3 Nd6 Bh3 Bg2+ Kg3 f1Q Nf3 Qd1 Ne6 Qdd5 Nce1 Qa2 Ra1 Qgd4 Rg1 h1N+ Kh2 Ng3 Rb1 Nd3 Rb6 Ndb4 Qe3 Bh1 Qf2 Ngf5+ Rg3 Qh4 Kg1 Nd4 Rg5 Qg7 Ra5 Qe5 Bg7 Nc7 R5a7 Nca6 Nfg5 Bhe4 Ngf3 Qhg5+ Kh1 Qg4 Bh6 Nc4 Bc1 Nd6 Bb2 Qa3 Ba1 Qb2 Rf8 Qa2 Rg8
RqN2B1K/8/1Pq2nr1/3rN3/1NNN4/3rQBpk/Rbb3rr/3RR2n b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 e5 Ke4 g5 h4 c5 f4 g3 d4 g4 b6 g2 h5 g3 d6 c4 h6 b3 d5 b2 h7 c3 f6 c2 Kf5 e4 Kg6 e3 f5 e2 f7 e1R f6 Na6 Qd3 Be7 Kg7 Nc7 f8R Ra4 f7 Rd1 Nd2 b1R Qe3 Ra2 Nc4 Nf6 Nf3 g1R Be2 Nb5 Nd4 Rb3 Bf3 Rbd3 Ba3 Rg2 Re1 c1Q Bc5 Rae2 Ra2 Nc3 Re8 Rf8 h8N Nce4 Ng6 Nf2 Bb4 Rh8 f8R R1d2 Rd1 Rhh2 Ba3 Ba6 Rh8 Nh1 Nge5+ Kc8 Rhg8 Rh6 Bc5 Rg6+ Kh8 Bb5 Bb4 Ba4 Rgf8 Bc2 d7+ Kb7 Rg8 Qb8 d8N+ Kc8 d6 Ref2 Nb7+ Bd8 Nec6 Kd7 Ba3 Be7 Nb4 Bf8 Re5 Bh6 Rge8 Bf4 Ra5 Be5 Ra8 Rfe2 Nba5 Ref2 Nac6 Rfe2 Ne7 Ref2 Ndf5 Bb2 Nc8 Rd5 Nd4 Rd3 Qh6 Rfd2 Ree1 Rdf2 Qe3 Re2 Ndc6 Ref2 N6e5+ Ke6 d7 Kf5 d8N Rfd2 Qd4 Kg5 Qc3 Kh4 Ndc6 Kh3 Qd4 Rh2 Qe3 Rdg2 Nd4 Bb1 Nd2 Qc6 Ndc4 Bc2 Na6 Rb5 Bf8 Rd5 Nb4
1BR1R2K/1rRN4/BqB1rn1p/6Q1/bPR5/2bb4/4r1R1/N1qnkBr1 b - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 e5 Ra4 Ba6 Ra1 Bc8 h4 a5 f4 exf4 b3 g5 hxg5 a4 Ra2 axb3 Ra4 Qd6 Ra1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 h6 g4 f3 g6 f2 g5 b2 g7 f6 g6 c4 Ra7 c3 Nf3 c2 Qd2 Qe7+ Ne5 Bd7 Na3 b1R Rh4 Qe6 Rc7 Be8 Qg5 Ne7 g8B Bg7 Bf4 c1Q Nc2 Rb3 Na1 Rh7 e3 Bh8 g7 Rb2 Bf7 Ra7 g8R Ra6 Bh5 Rc6 Bhe2 Nd7 Ba6 Re2 Bg3 f5+ Kf4 Qc5 e4 Nf6 Bh2 Qc8 Nd7 Rb6 Rg7 Rb7 Rg4 Qb6 Rc4 Qcc7 Rf7 Rg7 Rg2 Rg6 Rh7 Nc8 Re7 Na7 Rg7 Qcc6 Bg3 Nb5 e5+ Kc7 e6 Kd6 e7 Nc3 Rh7 Nd1 Rf7 Ne4 Rg7 Re6 Rf7 Nf6 Rg7 Qcc5 Rf7 Kc7 d6+ Kc6 Rg7 Kd5 Rh7 Bf7 e8B Qcc6 Ne5 Bg6 Rc7 Bg7 Bd7 Be8 Bh2 Qcc5 Ba4 Bh8 d7 Qcc6 d8R+ Bd7 Kg3 Ke4 Kh4 f4 d5+ Ke3 d6 Kd2 Re8 Ke1 Rec8 Qcc5 Bc6 f3 Bg3 Be8 d7 Qe3 d8R Qc1 Bd5 Ba4 Nd7 Nh7 Kh5 Bc3 Be4 Nf6+ Kg6 Re3 Bfd3 Re2 Bd6 f1R Kg7 f2 Bc6 Rh1 Re8 f1B Kh8 Rg1 Rh2 Bh3 Rg2 Bf5 Bf4 Ra2 Bf1 Bd3 Be5 Re2 Bd4 Qa5 Ba7 Qb6 Bb8
NR1rQ2R/1BR2nBp/n2r4/n2Q1R1q/3rP1R1/2b5/1k6/1N1nrbKR b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 e4 Kd6 g4 Ke5 d6 Kd4 b6 f5 g6 c5 d3 b3 g7 f3 d7 c4 b7 b2 g5 c3 g6 f4 Rh6 c2 Rh1 Ra6 Nh3 Qg5 d8R+ Rd6 Rd7 Qh5 Ng5 Nh6 g8Q Bg7 Qe8 Na6 b8R Nf7 Rc7 Bh3 Kg1 Rg8 Be2 Bf1 Ra5 Bh8 Bd2 c1N g7 Nb3 Rf5 Na5 Be1 Rf8 g8R Bf6 Nc3 b1R Ne6+ Ke3 d4 Rb4 d5 Rd4 Qb3 Bg7 Bh4 Kd2 Bf6 Kc1 Bb5 Bh8 Rg4 Rg8 Qd1+ Kb2 Bg7 Rf8 Nb1 Rg8 Qd7 Rd8 Bc6+ Ka2 Bb7 Kb2 Bh6 Bf6 Bg7 Be5 Rgh4 Bf6 Qe8 f2+ Kh2 f3 Qd3 Bh3 Rg4 f1N+ Kg1 Ne3 Qc4 Nd1 Qcc6 R6d7 d6 Bf1 Qc4 Rd3 Qd5 Bc3 Rcc8 Rd4 Nc7 Bh3 Na8 f2+ Kh2 f1R Rc7 Rf3 Kg1 Bf1 Rhh4 Re3 Rh1 Re7 d7 Re1 Qd6 Re6 Qd5 Rc8 d8R Rf6 Qed7 Rd6 Rh8 Rd8 Qe8
2Kbk1n1/2bn1R2/2R1Q3/rqq4q/2N3N1/2B1pq1q/R2N1N1P/2n1R1RB b - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 hxg4 d4 cxd4 Ke2 d5 Ke1 d3 f3 e5 Bd2 a5 Bg2 d4 Bf1 Bb7 Bf4 Bd5 exd5 e4 Bd2 e3 Bc1 Ra6 Bd2 Re6 Bc1 Re4 fxe4 Ba3 Bd2 Be7 Bc1 Bf8 b4 g5 c4 f5 d6 f4 b6 f3 c5 a4 b5 a3 d7+ Kf7 c6 a2 b7 g3 e5 g2 b6 g4 c7 g3 c8N Rh4 e6+ Kg6 e7 Kf7 e8N Ba3 Nf6 Bf8 Nd6+ Ke7 Nh3 g1Q Bb2 g2 Qb3 Qe8 d8R Qa4 Rc8 d2+ Kd1 f2 Kc2 d3+ Kc3 Rh5 Rc6 Qa7 Kb4 d1Q Bc3 Bh6 Be2 f1Q Nf2 Bg5 Kc5 d2 Bf3 Bh4+ Qd5 Bg3 Nc4 Be5 Rc7+ Nd7+ Kc6 Bf4 b8R Qfe2 Rf8 Qgf1 b7 g1N b8R Qh3 Rb2 Qef1 Be4 Ne2 Nca3 Qd4 Qb3 Ra5 Kb7 Qc5 Rc6 Bc7 Rf7+ Kd8 Qe6 Qa4 Nc4 d1Q Rg1 Qdd5 Bg2 Qdh5 N2e4 Qff3 Bh1 Qb3+ Bb4 Qa4 Nbd2 Qb3 Raf1 a1B Re1 Nc1 Ra2 Bae5 Ng4 Bf6 Nef2 Qb2 Qd5 Ke8 Kc8 Bfd8 Bc3 Qbb5 Qe6+
2r2BQK/1B2R2p/nk1nBN2/b2b2b1/2B2b2/1b2q1P1/2NNBq2/3R1Nq1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 fxg4 axb5 c5 d4 e5 fxe5 cxd4 Qd3 g3 Qd2 Qh4 Qd1 Qd8 Kd2 a5 Nh3 g5 Qe1 g4 Ng5 g2 Qd1 g1B Nf3 g3 Ke1 g2 Bd2 Ra6 Bg5 Rg6 Bc1 Rg3 hxg3 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 d5 Kd3 Kd7 e4 Kc7 b4 a4 c4 a3 b6+ Kc6 b7 a2 b5+ Kc7 e6 Ne7 b6+ Kc6 c5 Nd7 b8N+ Kb5 c6 Bg7 c7 Rg8 e5 Bh8 b7 Nf6 Be2 Rf8 Ba3 Ne8 Nh2 Nc6 e7 Bf6 e6 Bh8 Nd2 Nd6 e8B Be5 e7 Bf4 Na6 Bge3 b8N g1Q Bf7 Qf2 e8B Bb7 c8B Kb6 Nhf1 Qe7 Bce6 Qg5 Rc1 a1B Nb4 Bc3 Nc2 Ba5 Rh5 Qe7 Re5 Ba8 B8d7 Rc8 Qe1 Bg5 Rd1 Bef4 Bde8 Na7 Re4 Nab5 Bc6 Nc7 Bb7 Na6 Nd7+ Ka7 Nf6 Kb6 Bd7 Qe8 Bb5 Qe7 Bc4 Qe8 Be6 Qe7 Nb4 Qe8 Kc2 d3+ Kc3 Qe7 Re3 Qe8 Kd4 Qe7 Nb3 d2 Nc2 Qe8 Rc1 d1B Nbd2 Ne4 Bf8 Nd6 Na3 Bb3 Rd1 Qe7 Nc2 Qe8 Kd3 d4 Re5 Nb5 Ke4 d3 Kf5 Qe7 Bf7 Qa3 Re7 Qac5+ Ke6 Qcd4 Bg8 Qde3+ Kf7 Nd6+ Kg7 Nb5 Nf3 d2 Kh8 Nd6 Bgd5 Nc7 Be6 Na6 Rb1 d1Q N3d2 Qg1 Qf2 Qe1 Qf3 Qe1f2 Qg4 Bh4 Qg8 Bhg5 Bc6 Bb7 Rd1 Ba8 B6b5 Bh1 Bc6 Bd5 Bb7
1BN1NB1b/KN3r2/2k1n2R/1rnrqq2/2pP2nB/8/2q2R1B/1NrQN3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 Kf2 Kd7 h4 c5 e4 g5 b4 a5 e5 a4 e6+ Kd6 b6 c4 f6 a3 e7 a2 b7 Nd7 h5 Bg7 f7 Nc5 f8B Nh6 b5 Ra5 b6 Rb5 e8N+ Kd7 d6 Kc6 b8B g3+ Ke1 g2 Kf2 g4 b7 Ne6 d7 Qc7 d4 Qe5 d8N+ Kd5 Be3 g3+ Ke1 f2+ Kd2 f1R Kc3 f3 Bg5 f2 Nf3 g1Q Bh4 g2 Ne1 Ng4 h6 Bf6 h7 Qgh2 Bbd6 g1R b8B Bg7 Nb7 Kc6 Bdc7 Rd5 Kb4 Rg8 Ka4 Bh8 Bcd6 Rg5 Bdc7 Nc5+ Ka5 Ne6+ Ka6 Qg2 Bcd6 Qge4 Bdc7 Qc2 Ka7 Rf5 Rh3 Rf7 Rf3 Rg3 Rf6 Rb3 Rh6 Rbb5 Bcd6 Rg1 Bdc7 f1Q Bcd6 Bg7 h8N Qff5 Ng6 Bh8 Bdc7 Qef6 Bh2 Q6e5 Nc3 Rf1 Rc1 a1N Nb1 Nb3 Ne7+ Kd7 Nc8 Nbc5 Ng2 Kc6 Ne1 Qcd3 Rc2 Qb3 Rf2 Qbc2 Qf3 Rg1 Ng2 Rd1 Ne1 Rc1 Qd1
3qBKN1/1qB3n1/3kB3/3P3N/nbQ2pNr/1rn1B1Rq/2n5/2N1Rr1B b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 fxg3 h3 g2 Na3 g5 Nb1 g4 Ra6 g3 Ra1 Bg4 hxg4 Bc5 Ra5 Be7 Ra1 Bf8 b4 Kd7 d4 h5 Kd2 c5 Ke3 a5 Kf4 f5 Ke5 a4 e4 a3 d6 a2 d5 c4 b6 c3 b7 h4 b5 h3 g5 h2 b6 f4 g6 c2 g7 Ra4 Na3 Rh7 Qd4 Rh3 Be3 c1R Ne2 g1N Bg2 Rac4 Nc2 Ra4 Qc4 Rf1 Nc1 Nf6 g8B Rh4 Be6+ Ke8 d7+ Ke7 Bf3 Nh3 Rg1 Rd1 Bh1 Na6 b8N g2 b7 Rb4 Rb1 Qb6 d8N a1N Nf7 Qd8 Nd7 Nc5 b8B Rf1 Bc7 Nf2 Nh6 Ne8 Nf6 Rb3 Nh5 Na4 Kf5 Ng7+ Kg6 Nd1 e5 Ndc3 Ng8+ Ke8 Kh7 Bb4 Kh8 Rd1 Re1 g1Q Kh7 Qgg5 Rg1 Qa8 Rg3 Qgd8 Kh6 Rf1 Kg6 Qb7 Kh6 Nf5+ Kh7 Nd6 Kg7 Ba3 Nd3 Qa6 Nd4 Nc8 Bf3 Nc2 Nf5 h1Q Re1 Ne7 Nc1 Bb4 Nfh6 Qb7 Ng4 Qh2 Bh1 Qh3 Bf7+ Kd7 e6+ Kc8 Kh7 Nf5 e7 Kd7 Kh8 Nd6 Kg7 Ne8+ Kf8 Na3 Bcb6 Nc2 Be6+ Kd6 Ba5 Ng7+ e8B Rb1 Bab6 Rb3 Bc7+
4n1nR/3KbBN1/1k2QQ1N/3nN3/1b2Nn2/N1Bq1R1r/1Nb1p1P1/4n1b1 b - - 0 1 legal: proof: c4 a5 f4 f5 e4 fxe4 a4 b5 axb5 g5 h4 d5 cxd5 gxf4 Ra3 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Qd6 Na3 Qd7 Nb1 Qd8 Ke2 Kd7 b4 h5 d4 c5 b6 e5 b7 Kc7 b5 a4 g6 e3 Kf3 c4 Ke4 h4 b6+ Kd6 g7 c3 Bc4 a3 Qe1 a2 Ne2 c2 Bb2 c1N Na3 f3 Nf4 e2 Nd3 h3 Bc3 h2 Nb2 Na6 b8N f2 b7 Kc7 d6+ Kb6 Kd5 f1N d7 e4 Ke6 e3 d5 Be7 d6 Rh3 Nc6 Nd3 b8N Bb7 Ne5 Be4 Rc1 a1B Ba2 Nf6 g8N Nf4+ Kf7 Bf5 Nh6 Nc7 Na6 Bc2 Nc5 Nce8 Ne4 Ng8 Rb1 Nd5 Ke6 Ng3 Rf1 h1N Rf3 Nf2 Bb3 Nd3 Rc1 Qc7 d8N Qc4 Kd7 Nh5 Ne6 Nhf4 Ng7 Qa6 Qf1 e1B Qe2 Bd2 Rh1 Ne1 Qc4 e2 Qc8 Nb4 Bf7 Qd3 Qc4 Be3 Qe6 Bd2 Kc8 Nbd5 d7+ Ka7 d8Q Be3 Ba5 Bg1 Kd7 Bb4 Qdf6 Be7 Nd1 Bc3 Nb2 Bcb4 Rh2 Bbc5 Bc3 Bb4 Qc6 Rg3 Rh5 Rh3 Qce6 Kb7 Nhg4 Ka7 Rh8 Kb7 Nh6 Ka7 Nd6 Kb6 Ne4+
2k3Kn/Rprr3B/N1P1nRB1/1RB2qR1/3b1Rn1/3rN3/1n4Q1/1rq3B1 b - - 0 1 legal: proof: g4 a5 b4 axb4 h4 g5 hxg5 f5 e4 d6 exf5 Bd7 f4 Be6 d4 Bf7 d5 Bg6 fxg6 c6 f5 cxd5 Rh2 d4 Rh4 Qc7 Rh1 Qd8 Kd2 Kd7 Kd3 h5 Kc4 e5 Kd5 b3 c4 h4 a4 d3 a5 b2 g7 e4 c5 e3 a6 e2 g6 e1R g5 h3 f6 d2 f7 h2 a7 Kc8 c6 Re2 Nh3 Be7 f8B Rf2 Ke6 d5 Qc2 d1Q Nd2 b1N Nc4 d4 Be3 d3 Nf4 d2 Kf7 Qc7 Ra4 Qe5 Bd3 Nf6 g8B Bc5 g7 Na3 g6 Rf3 Ne6 Qf5 Bh7 Qc1 g8R d1N g7 Nb5 Rf1 h1R Nc7 Na6 Bg1 Nb2 Qg2 Bd4 Ne3 Nc5 Na6 Ne6 Be4 Rb8 a8R Rfh3 Bg6 R8h7 Ra7 Ra8 Rh8 Ng4+ Kg8 Nd6 Rc4 Nf7 Bc5 Rg3 Rb4 Rgh3 Rf4 Rb8 Rb5 Ra8 Nd1 Rd3 Ne3 Rb8 Bf2 Rhd1 Bg1 Rh1 Rh6 Nh8 Bf3 Kd8 Bd5 Rc8 Be4 Rc7 Bh7 Kc8 Rf6 Be5 Bg6 Rdd7 Bb1 Bd4 Be4 Rd3 Bh7 Qe5 Beg6 Qf5 Be8 Kd8 Bh2 Re1 Bg1 Kc8 Bh5 Ng5 Kf8 Qc3 g8R Rb1 Rg6 Qe1 Kg8 Ne6 Rg5 Qc1 B5g6
Q1n5/1Nq1RB2/2bP1r2/1NqB3r/RB5N/q1pq1r1B/r1k3K1/B1Nr4 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 e5 g3 b5 axb5 exf4 Qc2 f5 Kd1 f3 Qb3 f2 Kc2 Nd7 Kc3 Bd6 Qd1 Bf8 Kc2 Nb8 Nc3 g5 Nb1 f4 Ra2 f3 Ra5 Bd6 Ra1 Bf4 gxf4 Nd7 h3 Ndf6 h4 g4 Bh3 Ne4 Bf1 Ng5 hxg5 Qd7 Ra6 Qd6 Ra1 Qd8 d4 Kd7 Kd2 Ke6 Ke3 Kd5 b4 h5 b6 a5 g6 c5 g7 a4 f5 a3 f6 h4 b5 g3 f7 h3 f8N a2 b7 g2 b8N c3 b6 Kc4 d5 h2 b7 c2 Ng6 Kb3 Bb2 c4 Nh4 c3 Nd7 Rh6 b8B Ba6 Na3 Bd3 Bd6 Bg6 Nb5 Rb8 Bb4 Ra8 d6 Ne7 g8B+ Bf7 Kf4 Bd5 Kg3 Qc7 e4 Nc8 e5 Rf6 e6 Bc6 Ne2 g1Q+ Kh3 Qg5 e7+ Qd5 Qe1 c1R e8B Rd1 Nc1+ Kc2 Bef7 Qc5 Qe8 Ra5 Bg2 f1R Qf8 Rf2 Re1 h1R+ Kg3 Rff1 Re7 f2 Bh3 Rf3+ Kg2 Ra6 Rb1 a1Q Qd8 Qa3 Ra1 Nb6 Qa8 Nc8 Bd5 Rf6 Bhe6 Rh3 Bgf7 Rhf3 Bh3 Rh1 Nf8 Ra4 Ne6 Ra6 Nd8 Ra5 Bhe6 Rhh3 Nb7 Ra7 Nf5 Rh5 Nh4 Ra5 Bh3 f1Q+ Kh2 Qd3 Kg2 Qb3 Ra3 Ra4 Ba1 Qb2 Rb3 Ra2 Ra3 Qb3 Ra7 Qa3 Ra4
4b2B/1B1RN3/n4nkb/P4b1p/1Rb3NB/n1Kn4/2Q1R2B/2nBRq1n b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 h3 b5 Bb2 h5 Ba3 g5 Bc1 f4 Ba3 Rh7 Bc1 Rf7 h4 Rf5 gxf5 g4 Qc2 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Ba6 Rh3 Bb7 Rh1 Bc8 e4 Kf7 a4 c5 d4 b3 Kd2 c4 e5 g3 g6+ Kg7 d6 f2 d7 g2 f6+ Kh6 g7 b4 a5 f3 f7 b2 e6 b3 d5 Kg6 d6 Qg5+ Kc3 Be7 d8B Na6 f8B Bb7 d7 Nf6 g8B Qf4 Be2 f1B Ra4 f2 Nf3 g1N Nh2 Bc6 Bg7 Nh3 Bh8 Bf8 e7 Bh6 e8R Qf5 Bf3 Nf4 Ng4 Nd3 Bgd5 Be2 Qc2 f1N Rh2 Ng3 Rb4 Nh1 Bf4 Ba4 Bb7 Qb5 Nd2 b1B Nf1 b2 Nfe3 Qf5 Nd5 Bc6 Kd4 c3 Re6 Bf1 Bd1 Be2 Be5 Qf1 Rf2 Bb5 Bh2 Ba4 Be7 Bb5 d8R Be8 Qb3 c2 Rd7 c1N Kc3 Ne5 Rg2 Bf5 Qc2 Bc4 Re2 Ned3 R6e3 Nh7 Bh4 b1N+ Kd4 Na3 Kc3 Nf6 Re1 Qf4 R3e2 Qf1 Ne7+
2Q1b1n1/1B1nB3/6B1/3P2r1/Nqb3BN/1p1k1B2/Q3b1Kp/Bb1rb1RR b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 a4 d5 f4 e5 c4 exf4 cxd5 Qd7 Ba3 axb4 Bc1 b3 Rh4 b4 Rh1 Qb5 axb5 Kd7 Rh4 Ke7 Rh1 Ke8 Kf2 Ke7 g4 Kd6 d4 f5 e4 h5 g6 c5 e5+ Kd7 g7 c4 b6 b2 g5 c3 b7 b3 d6 Ke6 g6 Kd5 e6 Ke4 d7 c2 d8B h4 e7 f3 e8B h3 Be7 h2 Bh3 f4 Qd2 Rh5 Bg4 Nd7 b8Q Rg5 Bf7 Ba6 Qc8 Be2 Qa5 Kd3 Qa2 Ra4 Nc3 b1B Bb2 c1Q Be8 Ra6 Na4 Qc3 Bf7 Qa5 Bd5 Qb5 Bb7 Qb4 Bc3 Rd6 Bb2 Nh6 g8B Bg7 Bf7 Ng8 Bf8 Bf6 g7 Bd8 Be7 Ba5 Qc6 Bd1 Kf1 f2 Nf3 Be2+ Kg2 Rdd5 Nh4 f1B+ Kf2 f3 Qc8 Bh3 Kg3 f2 Bg6+ Rdf5 Bc3 f1B Rg1 Bhg2 d5 Bgf3 Kf2 Be4+ Bf3 Rf6 Rh1 Rc6 Bd4 Rc1 Rg1 Rd1 Be5 Ngf6 g8B Bf5 B8f7 Ng8 Be6 Be4 Beg4 Bf5 B6h5 Bg6 Bb2 Be8 Bg6+ Kd2 Kg3 Bc4 Rh1 Bfe2 Kg2 Ke3 Nf5+ Kd3 Bg7 Bc2 Rc1 Bb1 Ba1 Qc5 Rg1 Qb4 Nh4+ Ke3 Bf5 Bc7 Bd8 Rd4 Bg6 Bg3 Be7 Rd2 Rcf1 Be1 Rh1 Rd1 Bf7 Kd3 Rfg1 Bb5 Bh5 Bc4 Bg6+
KQ2B3/1p2P2q/3rn3/3kRB1b/2Np1n2/2rb3Q/R1bBBbNB/2B1b3 b - - 0 1 legal: proof: f4 e5 fxe5 a5 d4 h5 b4 axb4 g4 c5 Qd3 f5 gxf5 cxd4 Qh3 Kf7 Qxh5+ Ke7 Qh7 Ke8 Kd2 Kf7 Kd3 d5 h4 b3 e4 b2 a4 Nc6 c4 Na5 f6 Ke6 h5 g5 c5 g4 f7 g3 c6 g2 h6 Be7 f8B Bf6 c7 Qd7 Rh5 Bg7 Nd2 Nb3 a5 Ra6 Nc4 Nd2 Ra2 Rb6 a6 Rd6 a7 Nb3 a8Q Qd8 Nf3 g1B Nh4 Qg5 Be2 Ne7 Ng2 Qf5 Qb8 Bd7 c8B Ng6 Be7 Be3 Bg5 Bf2 Bgd2 Rg8 Qh8 Be1 h7 Nf4+ Kc2 d3+ Kc3 b1B Kb4 Nd4 Kc5 Bc2 Rg5 Nc6 Kb6 Nd8+ Ka7 d4 Rh5 Bf6 Ka8 Bfh4 Rg5 Bhf2 Rh5 Ke7 e6 Rg3 e5 Bb5 Bd7 Nf7 Qhc8 Nd8 h8B Qh7 Bf6+ Kf8 e7+ Kf7 Bf5 Nde6 Bg7 Re3 e8B+ Ke7 Ba5 d2 Rg5 d1B Bad2 Rc3 Rh5 Nd8 e6 Ba6 Bf8+ Kf6 e7 Nde6 Bh6 Bb5 Nb2 Ke5 Nc4+ Kd5 Bg7 Bba4 Be5 Bd3 Qd7 Bac2 Rg5 Ng6 Bh2 Ngf4 Bf1 Bh5 Be2 Nd8 Qe6+ Kc5 Qe3 Kd5 Qh3 Nde6 Rg3 Bb3 Re3 Bbc2 Re5+
2nR1R2/Rn4bb/6R1/1K6/R1rR1pQk/1N3q2/B1Pp2Bb/N2n1nQr b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 f4 b5 d4 cxd4 a4 e5 fxe5 Ba6 Bd2 Qf6 axb5 Bb7 b6 Qd8 b5 Bc8 Bb4 axb4 Kd2 Ke7 Kd3 g5 Kc4 f5 h4 d3 e4 g4 h6 f4 h5 g3 b7 g2 h7 d2 h6 b3 b6 d5+ Kb5 d4 e6 Kf6 e7 Kg5 e8B d3 e5 b2 e6 Nc6 b8Q Qd6 e7 Qf6 b7 Nd8 Ra7 Bg7 Ne2 g1B Bg2 Bc5 Nd4 Bd6 Bf7 Ba3 e8R Ne7 Rf8 Bf5 Rg1 Qd6 Ba2 Bc5 Nb3 Kh4 Qc8 Qd5 b8R Nb7 Na1 Qf3 Ra4 Ra6 Ra8 Rc6 R8a7 Bcd4 Qc1 d1N Nd2 b1N Ndb3 Rc4 Rd8 Be3 Rd4 Nd2 Qe6 Nf1 Qd7 Rb8 h8R d2 h7 Nc8 Rd8 Bd3 h8R+ Bh7 Rhg8 Bf2 Rgf8 Bg3 Bh3 Bh2 Rg6 Ne7 Bg2 Rbc8 Ra3 R8c6 R3a4 Nc8 Qa3 Re6 Qc5 Re1 Qe6 Nfe3 Qg8 Rh1 Qf5 Nf1 Qfe6 Rc3 Qe3 Rc4 Qg1 Bf6 Qe6 Bg7 Qg4+
KRN1q1nB/1Q1Bn3/p4n1b/r5Rn/1R1Rk3/r3B2p/1R1P4/2NbbB2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 h5 b4 c5 g4 c4 b6 h3 g5 a6 b5 h4 b7 f3 b6 f6 g6 f2 g7 c3 Bb2 c2 Na3 c1B Rb1 h2 Qb3 Nc6 b8R h3 b7 Bg4 Nc4+ Kc5 e3 Nce7 d6 Qe8 d7 Bd1 d8R Rh5 Nd6 f5+ Ke5 Kc6 e4 f4+ Kd4 f3 e5 Rf5 e6 Ra5 Nc8 Ra7 Ba1 Ba3 Rd5 Bd6 Ne2 Bg3 Nc1 Ra3 Rg1 h1N Rb2 Bh4 Rgg5 Ng3 Rg4 Nh5 Ke5 Nhf6 Rb4 Nh6 g8R Bg7 Rh8 Nhg8 Rh5 Bh6 Rg5 Ra5 Ra8 Ra3 b8B Rb7 Ba7 Rb5 Be3 Rc5 Rab8 Rca5 Bc4 f1Q Bd3 Qh1 Bf1 f2 Kd4 Ng6 e7 Qg1 Kc4 Qd7 e8B N6e7 Bf7 Qd8 Be6 Qe8 Bd7+ Kc7 Be2 f1N Kd4 Ng3 Bf1 Ngh5 Kc4 Be1 Kd4 R5a4 Kc5 Kd8 Kb6 Ra5 Ka7 Kc7 Ka8 Qg4 Rb1 Qh4 Bc3 Qd4 Rb2 Qh4 Be6 Kc6 Be5 Qd4 Bf5 Ne4 Bh8 Nef6 Bd7+ Kc7 Ra4 Bf2 Rde5 Be1 Qb5 Bb3 Rb4 Bd1 Na7 Kd6 Qb7 Rd5 Nc8+ Kc5 Ref5 Re5 Qc7+ Kd5 Qa7 Ke4 Qc7 Rc5 Rd5 Rb5 Qb7 Rba5 Rdxd4#
1b1r2Br/3B1R2/1n2R2k/n1r1N1nq/1R3N2/1p2p1KN/RP2qQ2/1N1q3R b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 g5 a4 d5 d4 c5 h4 gxh4 Be3 b4 cxd5 Nh6 d6 Ng8 d5 Ba6 Bd4 Bb5 axb5 cxd4 g4 Kf7 f4 Kg7 Kf2 h5 g5 a5 b6 e5 b7 h3 d7 h4 d6 h2 g6 d3 f6+ Kh6 f5 d2 f7 h3 f6 e4 g7 a4 Nc3 e3+ Kg3 a3 Bb5 a2 Qe2 d1Q Qf2 Qe2 Nb1 b3 Ba4 Nc6 b8R Na5 Rb4 Ne7 g8B Nc8 Bb5 Be7 f8R Nb6 f7 Bf6 Re8 Be5+ Rf4 Rc8 f8R Rc5 Re7 Qe8 d8N Q8h5 d7 Bd6 Rff7 Bb8 Bh7 Rf8 Ne6 Re8 d8N Rf8 Nc6 Rh8 Nf3 Rd8 Rf1 h1Q Bg8 h2 Nfg5 Qd5 Re1 h1R Ne5 Qdd1 Rb4 Rh2 Rh1 Rh4 Nc3 Rh2 Nf4 Rh4 Rc1 a1N Bd7 Nc2 Ngh3 Ne1 Ra1 Nf3 Ra2 Ng5 Nb1 Rcc8 Nd5 Rhc4 Ndf4 R4c5 Bh7 Rh8 Bg8 Rd8 Re6+
N1bN2Br/2q5/p2RQq1P/2r2Nr1/n2R1N1p/b7/bRBRq3/1NK2k2 b - - 0 1 illegal: No proof kernel
3NbRRK/1b6/b1Rrr3/k3B1BR/nPRrbB2/p7/2qN1pQB/b7 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Ba3 Bg2 Ke8 Bf3 exf3 h5 Nc6 Qa4 Ne5 Qd1 Ng6 hxg6 Bf8 Kf2 Kd7 e4 f5 d4 c5 b6 a5 e5 h5 d6 Kc6 g7 Kb5 d5 c4 g6 h4 b3 a4 b7 h3 b8B c3 d7 h2 e6 c2 d6 a3 e7 Rh5 e8R Ne7 g8R Bb7 g7 Qc8 d8B Ka6 d7 Nd5 Bf6 Nc3 d8B Rh6 Nh3 Na4 Bfe5 Rd6 Bg5 Ka5 Qf1 Raa6 Re6 Qc5+ Be3 c1R Nd2 Rc4 Rc1 Rcd4 Qg2 Qc2 Rg6 Be7 Rf8 Bf6 g8R Re6 Rh6 Rad6 Rh5 Bh8 Rhd1 h1B Rf1 Qb1 Rc4 Qc2 Rc1 Bf6 Bh6 Bh8 Ng5 Be4 Nf7 Bb7 Kf1 f2 Ke2 f1B+ Kf2 f3 Kg3 f4+ Kg4 f2 Kg5 f3 B3f4 Bd3 Nd8 f1B Bh2 f2 Bef4 Rd7 Bbe5 Bg6 Rc6 R7d6 Rc4 Qa2 Rc6 Bfa6 R1c4 Be8 Kf5 Bd7 Bhg5 Bf6 Kg6 Be8+ Kh7 Qc2+ Qe4 Be7 Kh8 Bg2 Bg7 Bf6 Qg6 Bd5 Qe4 Be5 Qg2 Be4 B7f6 R4d5 Bg7 Ba1 Bge5 Rd4 b4+
2Q3Bb/kn1R2B1/1RRb1R2/N4npK/2B1R3/4p2b/1B1r1P1q/bNn3b1 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 d5 cxd5 f5 e4 b5 axb5 fxe4 Qe2 a4 Qd1 Ra5 bxa5 Ba6 Bb2 Bb7 Bc1 Bc8 Ke2 Kd7 h4 g5 d4 c5 d6 e5 d5 a3 a6 c4 h5 g3 b6 e3 Kf3 e2 Kg4 e1N a7 a2 a8B e4 h6 c3 h7 c2 b7 g2 Bb2 c1B Kh5 e3 Qc2 Qc7 Ne2 g1B Nd4 Kd8 d7 Qc3 Nc6+ Kc7 d8R Kb6 d6 Be7 d7 Nh6 Na5 Ka7 Rh4 Qc7 Re4 Bd6 Rf8 Nc6 d8R Nd3 b8R Bh3 Rd7 Nd8 Bd5 Nf5 Rf6 Nb7 Bg8 Bd2 Rc8 Nc1 Bfc4 Qb8 Rc6 Bc3 Bgf7 Rg8 h8B Rd8 Bg7 Bce5 Nd2 Bd4 Rb1 a1B Bg8 Bb4 Ba3 Qh2 Rb2 Be7 Nb1 Bd6 Rbb6 Bdc3 Bb2 Bce5 Rg6 Bd4 Bf8 Bh8 Bfg7 Re8 Qc3 Re5 Rf6 Rd5 Qe5 Rd3 Qe8 Rd2 Qc8
BN3r2/kNKbr1B1/q1Rp1r2/3Rr1r1/n5QN/5BNn/1pq3P1/N6B b - - 0 1 illegal: Other
1qB1r1B1/R4b2/1R1Q4/1BR1P2r/q1nKR3/1p1p2b1/1NRq1Bbk/3qN3 b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 Na3 g5 Nb1 f5 h3 Na6 gxf5 g4 h4 Nc7 Nf3 Ne6 Ng1 Ng5 hxg5 Ke7 Qd2 Kf7 Qd1 Ke8 Kd2 Ke7 Kd3 b5 e4 h5 a4 d5 c4 h4 e6 Kd6 f6 Ke5 e7 b3 e8R+ Ne7 c5 b4 g6 g3 c6 g2 c7 b2 f7 h3 g7 h2 g8B Be6 c8B Ng6 a5 Bd6 f8R Rh5 Na3 b1Q+ Qc2 b3 a6 Qa2 a7 Qd7 Qd1 Qa4 Rf3 Rb8 Re3 Kf4 a8R Bf7 Re2+ Kg3 Nf3 g1Q Nc4 Bf4 Rc2 Ne5+ Ke2 Qb2 Be3 d3+ Kd2 d4 Ra7 Qba2 Nb2 Ra8 Rac1 Nc4+ Ke1 d2+ Ke2 Bc7 Kd3 Qf2 Ne1 Qf4 Be2 Be5 Rf1 h1B Bf2+ Kh2 Re6 Bb8 Rb6 Bg2 Rg1 Qe5 Rf1 Qh8 Rg1 Bg3 e5 Ne3 Rc5 Nc4 Rc2 Rb8 Beg4 Ra8 Bgd7 Rb8 Bb5 Ra8 Qf3 d1Q+ Ke4 d3 Kd4 Rb8 Qc6 Ra8 Qd6 Rb8 Be6 Re8 Rf1 Qh6 Bc8 Qhd2 Be3 Qab4 Rf4 Qaa1 Re4 Qaa4 Bc6 Qbb5 Bf2 Qbb4 Rbb7 Qb6 Bb5 Qc7 Rb6 Qd8 Bh3 Qb8 Bc8
2qR1KNr/1k2Bppb/bbN5/r5R1/nN2q2R/1r1N1Q1r/1B2P1NR/8 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 h4 Qg5 h5 Nf6 Bg2 Be6 Be4 Bc8 Bg6 hxg6 Nf3 Nbd7 Ng1 Ng8 h6 Ndf6 Qc2 Nh5 gxh5 Qe7 Qd1 Qd8 Kf2 Kd7 Kf3 a5 Ke4 c5 Ke5 Kc7 b4 f3 d4 f2 d6+ Kb8 d7 f1B d5 a4 b6 c4 b7 a3 d6 c3 h7 c2 h6 a2 b5 g5 Nh3 g4 Na3 g3 Bb2 c1Q Nf4 g2 Qd5 Qa5 d8B Qce1 d7 g1R Nc4 Qa4 Ne3 Ba3 Nd3 Ra5 Rb1 Ka7 b8N Bc5 Na6 Nf6 Rh3 Rg8 h8N Bb4 h7 Bc3+ Kd6 Qc1 Ke7 Rh1 Ng6 Ne4 h8R Bg2 R8h4 Rh8 Ra1 Qd4 Nab4 Ba6 b6+ Kb8 b7 Nc5 Rg3 Rh3 Rg5 Be4 Ng2 Na4 Qf5 Be1 Qf3 Bf2 Rb1 Qc2 Rh1 Qc8 Rh2 Ka7 b8N Kb7 N8c6 a1R Bc3 Ra3 Bb2 Rh5 Kf8 Rb3 Nge7 Rh8+ Ng8 Bh7 Nde1 Qe4 Ned3 Qc7 Be7 Qc8+ d8R Be3 Bd6 Bb6 Be7
2R2N2/nr3n2/4pQNn/1B1N2N1/2B1P2B/2p2qR1/qr1NB2q/k1K1nr2 b - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 f5 Nc3 fxg4 Nb1 a5 a4 b5 axb5 a4 Ba3 g6 Bb2 Be6 Bc1 Bc8 h3 g3 Bb2 g5 Bd4 g4 Qc1 g2 Bb2 g3 Qd1 Bg7 Bc1 Bg4 hxg4 Bd4 Bb2 Bb6 Bc1 Ba5 bxa5 Kf8 Ra3 Kf7 Ra1 Ke8 e4 Kf7 f4 Ke6 d4 h5 Kd2 c5 a6 h4 f5+ Kf6 d5 Ke5 b6 Kd4 f6 h3 d6 h2 b7 a3 d7 a2 a7 Rh7 g5 Qc7 d8N Nh6 g6 Nc6 g7 Rb8 a8B Na7 Nh3 g1N g8B g2 Ng5 Nh3 f7 g1N Qf3 c3+ Kd1 c4 f8N Qd6 Ng6 c2+ Kd2 Qg3 Be2 Qf2 Ba3 c1R Be6 Qg3 Qf6+ Qe5 Bd7 e6 Bb5 Rf1 Be7 Nf3+ Kc2 c3 Rg1 h1Q Nd2 Ne1+ Kc1 Qf3 Rg3 Rg7 Rb1 a1Q Nc6+ Ke3 Bbc4 Qa2 Nb4 Kd4 Nd5 Rf7 Nh7 Ng5 Rb6 Rg7 Rc6 Ngf7 Ng5 Rh7 Rc8 Rg7 Nc7 Rh7 Bd8 Kc5 Bb5 Kb4 Nd5+ Ka3 Rc7 Rc8 b8N Qd6 Nd7 Rb8 Bbc4 Rb2 Ndf8 Rg7 Rc8 Qb8 Rg1 Qh2 Rg3 Nh8 Bc6 Rb3 Qf5 Rgb7 Ngh7 N8f7 Bh4 R3b4 Ng5 R4b6 Kd1 Kb2 Qf6 Ka1 Kc1 Rb2 B6b5
1B1q1N1R/2P2bB1/qQ6/1rpR3p/2NqNkr1/6r1/3N1Np1/n2NnQK1 b - - 0 1 illegal: No proof kernel
Rrb5/RNB1qP1R/1NNB3p/2np4/1Q4N1/pR1rn1nK/2n2k2/N4r2 b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 g6 e5 f6 exf6 Kf7 Ra4 Ke6 f7 Ke5 Ra1 Kd6 g4 Kd5 f4 Qb6 h4 Qb7 g5 Na6 f5 Nb8 f6 Bg7 Bh3 Qc7 Bg4 Kd6 Bf5 gxf5 g6 Bh6 Qd2 Qb6 Qd1 Bg5 hxg5 Qd8 Kf1 Ke5 Kg2 Ke4 f8N d5 c4 a5 b4 e5 b6 d3 b7 a4 b5 f4 g7 d2 f7 Ke3 b6 e4 g6 Bd7 c5 Qc8 c6 Nf6 g8N Ra5 c7 Bg4 g7 Na6 b8R Qf5 c8N Qe6 b7 Qd6 Nd7 Nc7 Nge7 Be6 g8R Na6 Nc5 Nh5 Nh3 Ng3 Nb6 Bc8 Nc6 Qe7 Ba3 f3+ Kh2 f2 Qb3+ Ke2 Qb4 d1N Nd2 f1R Ndb3 e3 Nf2 Kf3 Ra8 e2 b8B e1N Ng4 Ne3 Nb7 N1c2 Bc7 Nc5 Kh3 h6 Rg7 Rg8 Rh7 Rb5 Rb1 Rf8 Na1 Re8 Qd4 Rb3 Qb4 Rd3 Rb3 Ke2 Bb2 Kf3 Bbe5 a3 Bed6 Bd7 Rh2 Rb8 Re2 Bc8 Qc3 Nd1 Re4 Nde3 Rea4 Ke2 Qb4 Ne6 Nge5 Kf2 R4a7 Nc5+ Ng4+
1R3n1R/1Nn3B1/p1B3Nn/qk4pK/p2rr2R/7P/R2NR2N/q2bn2Q b - - 0 1 legal: proof: c4 b5 a4 bxa4 e4 d5 cxd5 f5 exf5 h5 b4 e6 g4 hxg4 b5 Qg5 Qb3 Qf6 Qd1 Qd8 Na3 a6 Nb1 Bc5 Na3 Be3 Nb1 Ba7 b6 Bb7 bxa7 Bc8 Ke2 Kd7 d4 c5 f4 g5 f6 e5 f7 e4 f8R e3 f5 c4 f6 g3 Kf3 g2 Kg4 e2 d6 Kc6+ d7 e1Q f7 c3 d5+ Kc5 d6 c2 Nf3 g1N Nbd2 Qa5 Bc4 Qe8 Bb2 c1N Bd5 Kb5 Bg7 Qe1 Ra2 Qf1 Re8 Nh3 f8N Nh6+ Kh5 Nd3 d8N Nd7 Nb7 Ne1 Ng6 Nf8 Re2 Be6 d7 Re8 d8R Rh7 Bh8 Rd7 a8R Bg8 Rac8 Re4 Bg7 Bf7 Rb8 Be8 Bb3 Rdd4 Bg8 Bf7 Qc1 Bb3 Bd5 Bd1 Qa1 Nd7 Rh8 Nf8 Rg1 Nf2 h3 Nfg4 Nh2 Ne3 Rg4 Qg1 Rh4 Qf1 Bb3 Nd5 Qc1 Nc7 Bd5 Qf6 Qa1 Rb4 Qc1 Qa1 Qb1 Rd4 Qe4 Rbc4 Qg2 Re4 Qh1 Rcd4 Bc6+
B2RQ1q1/N1pB1Bpb/6b1/N3b2b/3PB2K/p5R1/Nk1r3n/1BN2qr1 b - - 0 1 illegal: No proof kernel
6B1/3r4/Q1RN1N2/4NrBp/P1r2n2/pbpNB1Bb/k1R1nnN1/n4K2 b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 c4 gxh4 a5 d5 cxd5 Kd7 Rh3 Ke7 Rh1 Ke8 b3 b5 Qc2 Bc5 Qd1 Bb6 axb6 a5 Nc3 a4 Nb1 a3 Rh3 Qd6 Rh2 Qb4 Rh1 Qa4 bxa4 Ba6 Qc2 Bb7 Qd1 Bc8 d4 Kd7 g4 Kd6 e4 h5 b7 c5 g5 f5 g6 f3 g7 f4 Bd2 h3 Bc4 h2 Nc3 b4 Qe2 f2+ Kf1 b3 Nf3 b2 Rc1 b1B Rc2 Rh7 Na2 Na6 Ne5 Ne7 g8N Nb4 Be3 Ng6 Nf6 Rd7 Nc1 Ba2 Ncd3 Bb3 Rg1 Ra7 b8B+ Rac7 Rg3 h1N Rg4 Nf8 Rg6 Ne6 Rh6 Ba2 Bb3 c4 Rg6 c3 Bc4 Bb3 Rh6 Ke7 d6+ Kd8 d5 Rc6 Rc1 Nc2 Rg6 Na1 Rc2 Rdc7 d7 Ke7 d8N Rd7 Rh6 Rcc7 Rg6 Kd6 Rh6 Nf8 Ne6 Ng6 Kg2 f1N Kg1 f3 Nef4 Nf8 Ng2 Nfg3 Qf1 Ng6 Qe2 Nf5 Kf1 Nf4 Rg6 f2 Rh6 Nd4 Rg6 Ke7 d6+ Kd8 Bg8 Rc4 Qg4 Nde2 Qe6 Ra7 d7 Rac7 Qd5 Ke7 Qa5 Kd6 d8B Bh3 Qa6+ Rc6 Nf7+ Ke6 e5 Rd7 Nh7+ Kd5 e6 Rc4 e7 Ng1 e8N Nge2 Bc1 Kd4 Bg5 Kd5 Nfe5+ Kd4 Nb2 Kc5 Rf6 Kb4 Rc6 Nd3 Ba7 Ba2 Bcf4 Kb3 Bg3 Bb1 Bae3 Ka2 Rd2 Bc2 Nhf6 Bb3 Rc2 Bg4 Nh4 Be6 Kg2 f1R Nd6 Bh3+ Kh2 Rf5 Ng2 Ndf4 Nbd3+ Kb1 Be6 Nf2 Bg8 Nd4 Kg1 Nde2+ Kf1 Ng6 Nc5 Ngf4 Rc1+ Kb2 Ncd3+ Ka2 Rc2+
1Bb1b3/B5bb/PKBkNnN1/2N2p1R/Np2n3/BQpqb3/3n3R/1B6 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 g5 Ra6 Qb3 Ra4 Qd1 Ra8 h4 f5 Nc3 h5 Rh2 b5 Nb1 Ra6 Rh1 Rf6 gxf6 g5 Bg2 g4 Bf1 Rh7 Nh3 Rg7 Ng1 Rg5 hxg5 Be6 Qb3 Bd7 Qd1 Bc8 Kf2 Kd7 e4 c5 a4 h4 d4 h3 g6 c4 e5 b3 e6+ Kd6 g7 h2 a5 b4 e7 b2 e8N+ Kd7 d6 f3 Ke3 f2 d5 g3 Kd4 g2 Kc5 Nh6 g8B Nc6 a6 Ne7 f7 Ng4 Nf3 g1B Nd4 Ne3 Nc3 b1B Ba3 Ba2 Nb3 Bh6 Bd3 f1N Na4 c3 Nc7 Bg7 Kb6 Bh6 Bb1 Qe8 f8N+ Kd8 d7 Ng4+ Nbc5 Nf2 Qb3 Ne4 Ng6 Nfd2 Bf7 Qf8 Be8 Ng8 Qb2 Bb3 Ra2 Bc4 Qb3 Ngf6 Rc2 Nf3 Rg2 Bge3 Rg5 Qf7 Rh5 Qh7 Rf1 h1B Rf2 Nfd2 Rfh2 Bb7 Nf8 Ke7 d8B+ Kd6 Bc6 Qd7 Ng6 Ne8 Bh4 Bc8 Bf2 Bg7 Nh4 Ke5 d6 Bg8 Bg1 Qd8 d7 Kd6 Ng6 Bh7 Bf2 N8f6 Bg1 Qg8 d8B Qd5 Bf2 Qd3 Bg1 Ng4 Bh4 Bg2 Bg3+ Be5 Be8 B3f4 Ka5 Bg7 N5e6 Ngf6 Nd5 Ng5 Ba7 Bf3 Kb6 Be4 Ndc7 Bc6 Nec5 Nge4 Nd5 Bb5 Nge7 Ke5 Ng6+ Kd4 Bd7 Be3 Bgb8 Bc6 Nc7 Bb5 Nh4 Ke5 Ng6+ Kd6 Be8 Bc4 Bb5 Bf7 Bc6 Be8 Ne6#
n2B2KR/8/pk3pB1/r4q1n/pNn1n1nB/N2PRrBN/1BN3r1/1Q6 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 g4 bxa4 g5 Bh3 Qb3 Be6 Qd1 Bc8 h3 f6 h4 Be6 Na3 Bf7 g6 Kd7 gxf7 g5 Nb1 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Qf8 Rh2 Qe8 Rh1 Qd8 Kf2 h5 f8B c5 e4 Kc7 b4 g3+ Kf3 c4 b5 h4 Kg4 h3 Kf5 f3 Kg6 f2 Kf7 h2 d6+ Kb6 d7 g2 e5 c3 e6 c2 g6 a6 g7 Rh3 e7 Nc6 e8N Rh5 Bfa3 Rc8 Nd6 Nb4 Bd3 f1R Nf5 Rc3 Nd4 Qc8 Bg6 Rff3 d3 Nd5 d8B+ Nc7 Bab2 Qf5 Nh3 g1N Bg5 c1N Nc2 Nce2 Bh4 Nf4 Nba3 Nh6+ Kf8 Rc4 g8N Ng4 Qb1 Rc5 Kf7 Rg5 Ne7 Nh5 Nc6 Rd5 N6b4 Re5 Be7 Na8 Kg8 Re2 Ra2 Rg2 Ra1 Rf4 Ra2 Nf3 Ra1 Nd2 Bd8+ Nc7 Re1 h1N Re3 Rf3 Ra2 Nhf2 Ra1 Kc5 b6 Nfe4 b7 Nc4 b8B Na8 Bbg3 Qf4 Qa2 Rd5 Rh1 Qf5 Be7+ Kb6 Qb1 Ra5 Bd8+ Ka7 Rhe1 Nef2 Re8 Ne4 Re3 Kb7 Kh7 Ka7 Rh8 Kb7 Kg8 Ka7 Be7 Kb6 Bd8+
RKb1B2r/2B1Qb1p/Q1bN2R1/b2Q4/1Nr1p1QQ/k1Q2p1q/4P1q1/1b6 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 c5 a4 cxd4 axb5 a5 b4 a4 f4 gxf4 g5 Nc6 g6 Na5 bxa5 Nf6 Ba3 Ne4 Bc1 Ng5 hxg5 Bb7 Bd2 Ba6 Bc1 Bc8 Kd2 e5 Kd3 Ke7 Ke4 Kd6 c4 Kc5 b6 Kb4 Kd5 f5 c5 d6 Kc6 e4 a6 d5 b7 a3 b8Q+ Kc4 g7 a2 g8Q d3 g6 f3 g7 f4 a7 f2 Na3+ Kc3 Qc7 Kb4 Qe1+ d2 Nh3 f3 Ng5 d4 Nf7 d3 Rh6 Qe7 Bh3 f1B Rg6 Qg5 Qh4 d1B Bf4 d2 Nc2+ Ka4 Nb4 Bb3 Nd6 d1B Qe7 Bdc2 Kc7 Ka3 c6 Qg2 Bd7 Bb1 Be8 Bf7 Be5 Bd7 Kb7 Rc8 c7 Ba4 a8Q Qh3 Qa6 Bg2 Qe6 Be7 Qd5 Bd8 Qf8 Bf1 g8Q Qg2 Qb6 Bc6+ Ka7 Qg4 Qb7 Bh3 Qfe7 Qg2 Qbb5 Rb8 c8Q Ba5 Qca6 Bc8 Qbc4 Rb5 Qcd4 Rc5 Kb8 Rc4 Qg7 Qh3 Qg1 Bc2 Qgg4 Qg2 Rc1 a1Q Bh2 Qa2 Ra1 Bb1 Qc3+ Ka4 Qgh3 Bb5 Qdd4 Rc6 Qab7 Bb6 Nf5 Rc5 Bc7 Bc6 Qc1 Kb3 Nd6 Qa5 Qdd2 Rc4 Qce1 Qf5 Qd5 Qfg4 Ra8 Ba5 Qa6 Ka3 Q3g3 Q4h3 Qgg4 Ka4 Qed2 Ka3 Qc3+
NBb1bRb1/1q2Q1r1/B5q1/k1r1pNr1/7K/2NR1B1p/p2PB2b/B2N4 b - - 0 1 legal: proof: c4 d5 f4 dxc4 h4 b5 f5 Nf6 h5 Nd5 a4 e5 axb5 Na6 e4 Nc5 exd5 Ne6 h6 gxh6 fxe6 h5 Qf3 h4 Qb3 Bg7 Qd1 Bf8 Kf2 f5 b4 c5 g4 a5 g5 h5 e7 Kd7 e8B+ Kc7 d6+ Kb6 g6 a4 d7 f4 g7 h3 g8B h4 Nc3 a3 Qc2 a2 Bh5 h2 Bb2 f3 Qh7 Qf6 d8N Bd6 Nge2 Ra7 Nc6 Qg6 Ncd4 Rg7 Bd5 Rhg8 Nd1 c3 Nf5 c2 Nec3 c1R Be2 c4 Bb7 Be7 Ba6 Bg5 Rb1 h3 Kg3 f2 Ba1 f1B Bhf3 Bf4+ Kh4 Bg2 Rf1 h1B Rb3 Bh2 Ra3 Qf7 Rb3 Qb7 Rf2 Rg5 Qe7 R8g6 Bh5 Bc6 Bhf3 Be8 Ra3 Rg7 Rb3 Ka7 b6+ Kb8 b5 Bg2 Bh5 Bd5 Bhf3 Bg8 Ra3 Qc7 b7 Ka7 b8N Kb6 Rb3 Qb7 Nd7+ Ka5 Nb6 Rc2 Na8 Rc1 Ne4 c3 b6 c2 Rd3 Rb1 Nc5 c1Q Ne4 Rb5 Nec3 Rc5 Rf1 Qb2 Rf2 Qc6 b7 Qg6 b8B Qb7 Rg2 Bd5 Rg4 Bc4 Rgd4 Bg8 Rd8 Ba4 Rf8 Bc6 Nd6 Be8 Nf5
1BRRq1N1/3B1nR1/N1R1pn2/Qp1p2Pq/1nQqn1r1/RK6/2r1R3/1k6 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 f4 axb4 e5 f6 exf6 Kf7 f5 Ke8 g3 Ra7 Qf3 Ra5 Qd1 Ra8 Bg2 g5 Bh3 b6 Bf1 g4 Be3 Ba6 Bc1 Bh6 h3 Bf4 gxf4 g3 Nd2 Be2 Nb1 Bg4 hxg4 Qc8 Kd2 Qc7 Ke1 Qd8 Kd2 Kf7 a4 d5 c4 h5 Kc2 b5 a5 h4 a6 d3+ Kb3 g2 a7 d2 c5 h3 c6 h2 g5 Qa5 c7 Rh3+ Nc3 Rg3 c8R Qb6 Ne2 g1Q Qc2 d1Q Bh3 Re3 Ng3 Qc7 Ra3 Nd7 Nh5 Re4 Na4 Ne5 Nc5 Qc6 Na6 Qe8 Rc6 Qgd4 Re1 h1N Re2 Rc8 a8Q Nf2 Bd2 Qh1 Qc4 Nfd3 Be1 Qf3 Bg3 Rc7 Ng7 Qh5 Qd8 Kf8 f7 Nf6 Qa8 Re3 Bh2 Rg3 Qd8 Rc8 Qa5 Rg4 Bg3 Qd7 Ne8 Qd8 Nec7 Kg7 f8R Nf7 Re8 Qd7 Rd8 Qe8 Bh2 Nd7 f6+ Kg6 Bg3 Kf5 Bh2 Nh8 f7 Nf6 f8R Nf7 Rd2 Ke4 f5 Ke3 Rg8 Ke4 Rg7 Ke3 Rd1 Ke2 Re1+ Kd2 Na8 Rc7 Nb6 Rc8 Bb8 Rc7 Nc8 e6 Ne7 Rc8 Re2+ Kd1 Ng8 Rc7 Bg2 Rc8 Be4 Rc7 Ka2 b3+ Kb1 b2 Ka2 b1N Kb3 Nb4 Bf3 Nh7 f6 Nc3 Be4 Kc1 Bg6 Nd3 Rc8 Kb1 Rd8 Ne4 Rc8 Nfe5 f7 Nb4 f8R Nf6 Rd8 Qd7 Be8 Nf7 Rc8 Qd8 Bd7 Qe7 Rfd8 Qe8 Rb6 Rc6 Qc3 Rc5 Rbc6 Rc4 Qd3+ Rc2 Qc4
n6N/B2K3R/r4Qrp/1p1N1RN1/4pP1b/Rb1R2n1/2BpR2q/1N2nk2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 a6 b5 axb5 h4 f5 exf5 g5 hxg5 b6 a4 Bh6 a5 Bg7 axb6 Bf8 Kd2 Kf7 Kd3 e5 Ke4 d6 Kd5 d3 c4 e4 g4 d2 f4 Nc6 c5 Ra7 b7 Nd4 b8R Bd7 c6 Bh6 g6+ Kf6 g7 Qf8 c7 Qe8 c8R Ra5 Rc3 Bg5 Raa3 Ne2 Nh3 Ra6 Rd3 Bh4 Ng5 Qh5 Rhh3 Ng3 Rf8+ Ke7 Qe1 d1N Be3 Nf2 Qc3 h6 Rh2 Bc8 f6+ Kd7 f7 Nf6+ Kd4 d5 Ke5 d4 g8N Bb7 Ne7 Rg8 Nd5 Ne8 Qb2 Kc6 Ke6 Kc5+ Kd7 Kc4 Be2 Re6 Bd1 Nc7 Bc2 Rgg6 Rh8 Rc6 f8R Ra6 Rh7 Na8 Rf5 Bc6+ Kd8 Be8 Kc8 Bf7 Kd7 Nh3 Re2 Ng1 Nh3 Bg8 g5 Nf3 Bf2 Ne1 Bg1 Rgf6 g6 Rfb6 g7 Rg6 Ng5 Bf7 Rf3 d3 g8N d2 Nge7 Bg8 Ba7 Bf7 Rfe3 Bg8 Rh2 Qe2 Rh3 Qh2 Re2 Bf7 Bb3+ Kd3 Qf6 Rg8 Ng6 Rg7 Nh8 Rg6 Nb6 Bc4 Ba4+ Bb3 Nd5 Kc2 Re3 Kd1 Rd3 Ke2 Re3+ Kf1 Re2 Nh1 Rhe3 Ng3 Rd3 Bc4 Bd1 Bb3 Bc2
1B3RN1/2rn1p2/pkB1RR1Q/q7/3RrNN1/b1pp2K1/2P3N1/3r1bNb b - - 0 1 legal: proof: f4 b5 d4 g5 a4 gxf4 axb5 e5 dxe5 Bd6 e3 Bf8 g4 fxe3 h4 Qe7 g5 Nc6 h5 Qd8 Ra3 Nce7 Ra1 Ng6 hxg6 Ba3 Qf3 Bc5 Qd1 Bf8 b4 d5 e6 h5 e7 Kd7 e8R c5 g7 Kc7 b6+ Kb7 b5 e2 Kf2 e1R g6 a6 Re6 h4 Bf4 d4 Qc1 d3 Nc3 h3 Nd5 c4 Bg2 c3 Ra4 h2 Ne3+ Qd5 Rd4 Bd7 Bb8 Ne7 g8N Bc8 g7 Ng6 Nf6 Rh7 g8N Rd1 Nh5 Bd6 Nf4 Rg7 Kg3 Bc7 Bf3 Rh7 Ng2 Nf8 Rf6 Bh3 Qe3 Kc8 b7+ Kd8 b6 Ra7 Qd2 Bd6 Qc1 Qa5 Bc6 Rh4 Qe3 Bg4 Qe6 Be2 Qh3 Rh8 Qh6 Nd7 Bc7+ Ke8 b8N Rc1 b7 Qa1 Nh3 Rd1 Qg7 Rh4 Qh6 Qa5 Re1 h1B Ng1 Ba3 Ne6 Bf1 Re5 Re4 Nef4+ Be7 Bd6 Kd8 Ree6 Nc5 Nd7 Bf8 Ne5 Nd7 Ng4 Be7 Bc5 Kc7 Bd6+ Kb6 b8R+ Rb7 Be5 Ba3 Rf8 Ra7 Bb8 Rb7 Rd5 Rc7 Rd4
1q1nNB2/1Q1R4/4bR1r/1k1p1qq1/1B1pNp2/R3QRRR/1PnK2pr/8 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 d4 cxd4 g5 Ba3 Bh3 Be7 Bg4 Bf6 gxf6 hxg4 h4 d5 e4 Kd7 c4 a5 e6+ Kc7 e7 Kb6 e8Q g5 e5 f4 f7 a4 f8B a3 c5+ Ka5 b6 a2 c6 g3 e6 g2 c7 g4 e7 g3 h5 Ra6 b7 Nd7 b8R Rd6 h6 Ngf6 h7 Rg8 h8R Rb6 R8h7 Rb3 Nh3 g1Q+ Kd2 g2 Rb6 Ba6 c8R Qh2 Rc3 Bc8 Rg3 Rg6 Na3 Ne5 Nb5 Be6 Ng5 Rh6 Nc7 Qh3 Ne4 Qf5 Rhh3 Nfg4 Rd6 Rb7 Qb3 Nc6 Rf7 Qb8 Rf6 Ne3 Rd7 Qg5 Qc8 Rb6 e8R Nc2 Qb7 Nd8 Qe3 Ra6 Rf3 Ka4 Rhg3 Rh2 Ree7 Rd6 Ne8 Rb6 Rh7 Kb5 Rb1 a1Q Rhh3 Qaa7 Ra1 Qbe5 Ra3 Qab8 Kd3 Qef5 Bd2 Qgg4 Bdb4 Qgg5 Qc8 Rd6 Kd2 Bg8 Rff7 Rh6 Rf6 Be6 Qb7+
1R4Q1/RB2K2R/q3p3/nNR4R/2q2n2/1RPp1p2/1p2QnkB/Nr2rb2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 gxh5 a5 Bh6 axb4 Bf4 Rh7 Bc1 Rh8 f4 d5 e4 e6 exd5 Qd6 f5 Be7 f6 Qd8 fxe7 Kd7 Kd2 Kd6 Kd3 Ke5 Kc4 Ke4 Kc5 b5 e8R f5 h4 g5 a4 g4 a5 g3 h6 b3 c3 g2 h7 f4 h5 d3 h6 b2 d6 b4 d7 b3 Kd6 Qg5 d8Q Ra7 a6 Qb5 Ra3 Nd7 Nf3 g1N Ne1 Nb8 Rh5 Ne7 Nc2 Ng6 Rc5 Nc6 Na1 Rb7 a7 Na5 a8R Nh3 Ra7 Nf2 Re7 Rf8 h8R Qc4 h7 Rg8 Qc2 Kf3 Bg2+ Kg3 Qd2 Rb5 Bf3 Bb7 Qe2 Ba8 Bh1 Bg2 Rf7 Rg7 Qg8 Bf1 Bb7 f3 Bf4+ Kg2 Bh2 Nf4 Ke7 Rg5 Rf8 Rb6 Rb8 Qa6 Nd2 b1Q Nc4 Qa2 Nd6 Rb4 Nb5 b2 Rd8 Re4 Rb3 Qa4 Rdd5 Qc4 Rf5 Rg6 Rh5 Re5 Qa8 Re3 Rb8 Rg8 h8R Re5 Qd1 Re1 Qe2 Rg5 R8h7 Re5 Rf8 Rb1 Qe8 Re3 Qf7 Re4 Rb8 Re3 Qc2 Ree1 Qe2 Kh1 Qf8 Kg2 Qg8+
1B1Q1K1N/p1pB2BR/3R2r1/B1k2pN1/1n1r1b2/3nRP1b/3Rp3/2B3rn b - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 c4 gxh4 cxd5 Bg7 g3 Bf8 d4 hxg3 e4 e6 d6 Ba6 d7+ Ke7 d5 Kf6 d6 Qc8 Bd2 Qb7 Bc1 Qd5 exd5 Bc8 Kd2 Ke5 Ke3 f5 d8R h5 b4 g2 d7 Kd6 Kf4 h4 Kg5 h3 Kg6 h2 Kf7 e5 b6 e4 f3 e3 b5 Nf6 b7 Rh4 b6 Bh6 Ra2 Bf8 Na3 Rh6 Rd2 Rh3 Bb5 e2 Nc4+ Kc5 d6 Ne8 Ne5 Nc6 b8R Ba6 b7 Rh8 Nh3 g1R Ng6 Ng7 Ng5 Rg8 Nh8 Nh5 Re8 Na5 d8B Nf4 d7 Rg6 Re3 Bh6 Bf6 Nc6 d8B Nd3 Bc3 Ncb4 Bd7 Bb5 Bdf6 Ba4 Rg8 Rd8 b8B Bb3+ Ke7 Bf7 Bg7 Be8 Kf8 Bf7+ Be8 Rd4 Bd7 Be8 Nh7 Bf4 Ng5 Nc2 Ba5 Ncb4 Nh3 Rb6 Ng5 Bh5 Bf6 Rbd6 Rg6 Bg4 Bg7 Rc6 Rd6 Bh3 Qb3 Rb6 Qf7 Ra6 Qe7 Rc6 Qd8 Rb6 Rh6 Rg6 Rh7 Rg4 Rhd1 h1N Rb2 Rg1 Rdd2 Na2 Rb6 Nab4 Rd6
nB6/3r2R1/1N3B1r/1B2b3/pB3pQk/1QP1B2N/Kp2pr1n/n1Rr1B2 b - - 0 1 illegal: No possible last move
4QRK1/1P1pb3/1np3Qk/B2QQ3/rQQq1ppp/5N2/B3bb2/1N1R1q2 b - - 0 1 illegal: No proof kernel
4BQ2/1R1B1prR/4P2b/3Q1KB1/p1B1N1p1/k3rBp1/Nrp2p2/2B1n2b b - - 0 1 illegal: No proof kernel
QKbq4/r1N1qB2/5RQ1/Bnn1k3/B2P1R2/3B2b1/1r3B2/NbnB1nnr b - - 0 1 illegal: No possible last move, all moves rejected
3nbrr1/3NNqb1/R1rn3r/4nr1R/kP2qB2/2QbN1B1/B2KB3/2BN4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 d4 h5 g4 c5 e4 f5 b6 a5 d6 Kc6 e5 f3 b7 h3 d7 f4 e6 c4 e7 Kb5 e8B f2+ Ke2 a4 g5 h4 g6 f3+ Kd2 a3 g7 h2 d5 h3 d6 a2 Bg2 f1R Kc2 c3 Bf7 f2 Bgd5 Ka4 Qf3 Nh6 g8N Qf6 d8N Bd7 Bc4 Nf5 Na3 Bg7 Ne2 Nc6 b8B Be8 d7 Nd6 Ne7 Rf8 Ne6 Nd8 Bd3 Ra6 Nc4 Rc6 Ne3 Rg1 Bc4 f1B Kd3 c2 Kd2 Qf4 Bg8 Rf5 Nf8 Qe4 Qg3 Qe6 Qe5 Qf7 Qc3 Rg3 Nd4 Bd3 Nb5 Nc8 Bf4 Nd6 Nd1 Rf3 Nc7 Rg3 Ncd5 Rf3 Rb1 a1R N5e3 Rf1 Rg1 h1R Rg6 h2 Rh6 Ra2 Rh5 Rhg1 Ra1 h1Q Ba6 Qe4 Bc4 Ne6 d8B Rg3 Bc7 Nd8 Bb8 Rg6 Nd7 Rh6 Bb2 c1N Bg3 Bb1 Be2 Nd3 Bf4 Ra3 Bc1 Ne5 Bg3 Bd3 Ra2 Kb5 Bc7 Ra8 Ra6 Rc8 Rb6+ Ka4 Bb8 Qg6 Bc4 Rf8 Be6 Qf7 Ba2 Rf5 Ng2 Rg8 Ba7 N8b7 Rb5 Rb8 Be3 Rbc8 Bef4 Rd8 Nf6 Bd7 Nge3 Rdf8 Rb6 Be8 Nd7 Nd8 Ra6+
1b1B3r/k2R2Rr/1N1n1bNB/2BqP1NB/2b3nK/2rN2n1/3q1Q1b/b3N3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 Kc7 h4 Kb6 h5 g5 h6 a5 h7 a4 e5 f3 Kg3 f2 d6 a3 d5 a2 d7 c4 d6 c3 Qe1 c2 Bd3 f1Q Nc3 Na6 Na4+ Ka7 Qf2+ Nc5 Be2 Qe1 Nf3 Nf6 Nb2 Bg7 Nd3 Ba6 Rg1 Qd2 Nfe1 Rb8 Ba3 Rb7 Rd1 a1B Rg2 Qg8 d8B c1R d7 Rc3 Ba5 Rc7 d8N Qd5 Ne6 Re7 Bc1 Rb7 Bc7 f4+ Kh2 g3+ Kh3 g4+ Kh4 f3 b6+ Ka8 b5 Nce4 Rg1 g2 Ng5 g3 Bd6 Rbc7 Bc5 Nd6 b7+ Kb8 Nf4 Ng4 Nfd3 Qb2 Bf4 Qd2 Bfe3 Bf6 Bf4 Rf8 h8N Rg7 Ng6 Rd7 Rh1 g1B Rh3 g2 Rg3 Bh2 Bfe3 Kc7 b8N Kb7 b6 g1B Bf4 Re7 Nd7 Bc4 Rg2 Ka6 b7 Rc8 Nb6 Ka7 Qg3 f2 b8B+ Kb7 Qf3 f1N Qf2 Ng3 Bc7 Ka7 Bf3 Ne3 Be2 Rh8+ Bh5 Ng4 Nb4 Nb7 Qe3 Nf1 Bd4 Bb2 Na4+ Ka8 Nf8 Qa5 Ba7 Qc2 Rd7 Qc5 Nbd3 Qd2 Qe2 Bd4 Qf2 Qd5 Be3 Nh6 Rg1 Bg7 Nf7 Bf6+ Bg5 Ba1 Rg4 Nd6 Bab6 Ng3 Ba7 Bg7 Bf4 Bc5 Rg6 Ng4 Bh6 Bf6+ Ng5 Reh7 Rgg7 Be3 Ng6 Bb6 Bcb8 Bbd8 Bc5 Bb6 Bc7 Ba7 Nb6+ Kb7 Qd4 Bb8 Qf2 Ka7 Bd8+
4kRRr/4N3/1n2BP2/3qQB1b/r5N1/R1Rr1bK1/3qq3/bnRrrBB1 b - - 0 1 illegal: No possible last move, all moves rejected
1b6/1N3r2/2nNP1QR/3Q3N/1nN4B/KNrrN1b1/1rq2rb1/2Rr1Bkr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 d4 Kd6 Kd2 a5 Kc2 h5 Kb2 c5 e4 f5 g4 f3 b6 c4 b5 c3+ Ka3 c2 b7 a4 b6 h3 g5 h4 g6 f4 g7 f2 Qg4 h2 Bd3 f1R Qg2 h3 Bb2 c1R Nf3 Qc7 Nh4 f3 Nd2 f2 Nb3 Na6 b8N Ne7 g8Q Nb4 b7 Nec6 Nd7 Rb8 Nb6 Rc3 Rc1 Bh6 Q2g3+ Bf4 Ng2 Be6 Q3g7 Bg3 Ne3 Rh7 Be2 Rd1 Qg6 Rf7 Bf1 Rd8 b8N Rdd3 Bg2 f1R N8d7 Rb8 Nf6 Rf2 Bf1 Bg4 Ba1 Bf3 Bb2 Bg2 e5+ Ke7 d6+ Ke6 d7 Rb7 Rg1 h1R Nbc4 h2 Nh5+ Rf6 Nf5 Kd5 d8N Ke4 d5 Kf3 d6 Kf2 d7 Rb6 Nb7 Rb5 d8N Qc8 Ba1 Qc7 Kb2 a3+ Kb1 a2+ Kb2 Rb6 Ka3 Rb5 Bb2 a1B Nfe3 Qc8 Nbd6 Qf5 e6 Qe4 Nc2 Qe2 N2e3 Qc2 N8b7 Rff5 Be2 R5f6 Rge1 Rf3 Bf1 Kg1 Qa8 Rf2 Qa5 Re2 Qg5 Bf3 Nc5 Kf2 Qg7 Rg1 Bh3 Na2 Ncb7 Rb6 Qg6 Rb4 Bg4 Bg2 Ndf5 Red2 Nf4 Rf1 Ned5 Rd1 Nde3 Rb5 Be2 Rb6 Ne5 Rc4 Qd5 Bh4 Bc3 Rbb4 N3a5 Rb1 Nb3 Nab4 Bd2 Bd4 Bc3 Ba7 Nfd6 Rb2 Bd2 Rcc3 N5c4 Rd4 Bd3 Bb8 Be2 Kg1 Bd3 Bf2 Re2 h1R Be1 Bh4 Bg3 Bh3 Rh2 Rf2 Bf1 Bg2 Rh3 R4d3 Rh2 Bf6 Rh6 Be5 Nh5 Bf4 Bh4 Bh2 Nb5 Bhg3 N5d6
2nBb1R1/5Qb1/R2k2Bb/N1nb3K/RQn2P1b/Rrq2R2/2n3r1/1N1n1R2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 b4 h5 g4 e5 f4 c5 d4 a5 g5 c4 b6 e3 Kf3 c3 g6 h3 d6 h4 Kg4 e2 b5 e1B d5 a4 b7 e4 g7 h2 b6 h3 Qd2 c2 Nf3 e3 Qa5 a3 Ng1 a2 Qd2 e2 Nf3 Ne7 g8Q Qc7 Ba3 c1N Nd4 Na6 b8R Bh6 b7 Nc5 Qf7 N1b3 Qb4 Bh4 Nc6 e1N Bd3 Rg8+ Kh5 Nc2 Rf1 h1B Na5 h2 Bg6 Nd2 Bb2 Be4 Bf6 h1N Rf3 Ra6 Ra8 Rb6 b8R Nc4 Ra6 Nf2 Rba8 Nd1 R8a7 Bb7 Ra8 Bc6 R8a7 Kd8 d7 Qe5+ Bg5 Qc3 Ra8+ Kc7 d8R Rg7 Rg8 Kd6 Bf6 Nc8 Bd8 Be8 R8a7 Be7 Ra8 Kd7 d6 Bd5 Qf8 Ke6 d7 Kd6 Qf7 Bh4 Nd2 Ndb2 Raf1 a1B Nb1 Nd1 Qb5 Qb2 Rb8 Ba8 Bh7 Nd2 Be7+ Kc7 d8R Nc4 Rdd3 Bd5 Bd8+ Kd6 Ra3 Rg2 Bg6 Qb4 Ra4 Bag7 Raa3 Qc3 Qb3 Rc6 Rb4 Rb6 Rba4 Ne1 Qb5 Nc2 Nc6 Rb7 Qa5 Rb2 Qb4 Rb3 Na5+
KN2b1B1/2Nq1rBR/Rr2rB2/Qn6/rb1b2n1/1rn5/1B1k1BP1/1Qb2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 d4 f5+ Ke5 a5 d6 h5 d5 c5 d7 a4 b6 h3 b7 f3 d6 a3 b5 h4 b6 h2 Qd2 h3 Qe3 a2 Qa3 f2 Nf3 f4 Qa7 Nc6+ Ke4 Rh6 b8Q Nd4 b7 Nb5 Ke5 Ne7 Na3+ Kc3 e4 c4 Nd4 f3 Bb2+ Kd2 Qa5+ c3 Nc6 Qc7 d8B Qd7 Bb6 Nd5 Bd4 Ra6 Bc5 Rb6 Bd4 Nf4 Bc5 Ne2 Kd5 Re6 Bd4 Be7 Bg7 Bf8 e5 Be7 Qa6 c2 Qa5+ Nec3+ Kc5 Na7 Nb5 c1B Nc7 Nb5 Qba8 Bf8 b8B Be7 Ba7 Bb7 Nb4 Bc6 Qb8 Bf8 Nba6 Be7 Bd3 f1N Bc4 Ne3 Bf1 f2 Qb7 Rf6 e6 Ng4 Nb8 Bf8 e7 Re6 e8B Be7 Rb1 a1B Bf7 Bf8 Bg8 Be7 Be2 f1R Bc4 Rf7 Be2 Na3 Bf1 Rb3 Qbb4 Nb5 Kb6 Bf8 Ka6 Be7 Bf2 Bf8 Rg1 h1R Qe4 h2 Qh7 Qe8 d7 Bb4 d8B Qe7 Qf5 Be8+ Kb7 Qd7 Bdf6 Rb6+ Ka8 Re6 Bc4 Rb6 Re1 Rf1 Re5 h1R Re7 Re1 Bf1 Rh4 Re6 Rb7 Ra6 Re6 Ba3 Bab2 Ra1 Rbb6 Qb1 Nd1 Ra7 Bd4 Bb2 Ndc3 Ra6 Rh3 Ra2 Ra3 Ra1 Ra4 Ra3 Na2 Re3 Rf3 Re5 Rb3 Rh5 Nac3 Rh7
b2B1R2/2q1N1Rq/1bb2KRn/br2PQR1/R7/1k4NN/1b4rb/nB1n3N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 c3 b6 c2 h7 g2 Be2 g4 Kf4 f2 Qd3 f1B Nc3 g3 Rh5 a3 Nh3 g1B Rg5 g2 Nf2 a2 Nh1 Nc6 b8R Na5 Rb7 Nc4 Rbg7 Ra5 b7 Ne3 b8R Bd7 Rb6+ Bc6 Bh5 Rc5 Bg6 Nd1 Ne2 Rb5 Neg3 Nh6 Qf3 Rg8 h8N Qc7 Nf7+ Ke7+ e5 Bh2 d6+ Ke6 d7 g1B d8R Bb4 Qe4 Bg2 Rf8 Ba5 Ba3 Bf2 Be7 Bfg1 Qd3 Kd5 Bd8 Ba8 Qf3+ Kc4 d5 Bc5 Qg4 Kb3 d6 Bgc6 d7 Bd4 Ra6 Bdb6 Bh7 Be1 Ra4 Bea5 Rc1 a1N Bg6 Ne3 Rg1 c1B Bh7 Bb2 R5g6 Bf3 Kg5 f4 Qf5 Bfc6 Kf6 f3 Ng5 f2 Nh3 f1Q Rgg4 Qd1 Qg6 Ba3 Nh5 Nef5 Re7 Qb8 Bc7 Bc1 d8N Bf3 Nc6 Qd3 Bd8 Ne3 Qe4 Rg5 Rg7 Nd1 Ne7 Bb2 R4g3 Qc7 Qf4 Qe2 Bb1 Qec2 Qg4 Qh7 Qf5 Rg4 R1g2 Rf4 R3g6 Bfc6 R2g5 Rf2 N5g3 Rd2 Rh5 Rg2 Rhg5
N1b2KbB/1b1Q2P1/kbbN2B1/B1b3Bn/3rR3/6N1/1BrNq1q1/2nR2n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8N a3 g5 h3 g6 a2 d5 c2 d6 Qe7 d8B Nd7 Bc4 Ngf6 Bf7 Rh4 Bb2 c1N Ne2 Nh5 Re1 Ra3+ Qd3 Rc3 Nd2 Rc2 Ng3 Qg5 Rb1 a1B Re4 Be7 Bh8 Bd4 g7 Bc5 Bc7 Bd8 Bg6 Qe7 Qe2 h1B+ Qg2 Ndf6 d7 h2 Be5 Nd5 Bb2 Bc7 d8B Nc3 Ra1 N3e2 Nd6+ Kb8 b7 B7b6 Rb1 Ka7 b8N Qe8 Bg5 Qe6 Re3 Qc4 Nd7 Ng1+ Kf2 f3 Qh3 Rd4 Re4 Bg2 Ke3 f2 Qg4 f1B Qh3 Bd8 b6+ Ka6 b7 h1B b8B Bdb6 Bc7 Qa2 Ra1 Bc4 Qg4 Bg8 Qh3 Nf6 Kf4 Nh5+ Ke5 f4 Qe6 f3 Qf5 Nb3 Rd1 f2 Qf7 f1Q Ke6 Qe1 Ke7 Nc1 Kf8 Qe2 Bcd8 Ba7 Ba5 Bab6 Re5 Bc6 Re4 Qg2 Qe8 Qc4 Qd8 Qce2 Qc7 Ba7 Nb6 B6b7 Na8 Bab6 Rh4 Qh2 Qd7 Bhc6 Rf4 Qhg2 Re4
K2B2N1/nRqNP1rr/N5B1/2qR2r1/R5r1/1n1Qr2R/br2qbR1/2N3k1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 a5 b6 h5 d6 f5+ Ke5 f3 e4 h3 b7 f4 d3 f2 d7 a4 g5 h2 b3 a3 g6 f3 g7 h4 Be2 f1R Qe1 f2 Ra2 h3 Nc3 Ra5 Nd5 Ne7 g8N Rh4 Bg5 Nf5 Qd1 Re1 Nb4 f1Q Bh5 Nd4 Bg6 Re3 Ne2 Rg4 Nc1 Qe2 Rd2 a2 Na6+ Kb5 Kd5 a1R e5 c5 e6 c4 b4 c3 Bf6 Nbc6 b8N Qc7 d8R c2 Nd7 Nb3 d4 Rb1 Bg5 Bb7 Ra8 Rb2 Bd8 Bc5 e7 Bc8 Rd3 Na7 Rc3 Bd6 Qf1 Bg3 Qf5 Bf2 Qd3+ Ka4+ b5 Ka3 Rg1 h1R Rg2 Rg1 Rh2 R1g3 Nac5 Kb4 b6 Ba6 b7 Rg2 b8R+ Bb5 Rh1 h2 Rb7 Rg1 Be8 Rg7 Bg6 Rg4 Na6+ Ka4 Rg1 h1R Rg2 Rhh7 Rh2 Qg3 Ne5 Bc4+ Kd6 Qg1 Nd7 Rag5 Kc7 Bd5 Kb8 Bc4 Na2 c1Q d5 Qg3+ d6 Be6 Rcc7 Qc5 Nc1 Ka5 Nb6 Qf4 d7 Qfc4 Rc6 Kb5 Rd6 Bf7 Rf6 Bd5 Rf3 Kc6 Rg3 Kd6 Rgh3 Ke5 Be4 Kf4 Bg6 Nc8 Raa7 Qc7+ Ka8 Q4c5 Nb4 Bf7 Ra4 Na7 Na6+ Bc4 Rh5 Kf3 R5h3+ Qg3 Bc7 Bd5 d8R Bf7 Rd5 Be6 Rh1 Kg2 R1h2+ Kg1 Bd8 Qgc7 Nd7 Na1 Re5 Ba2 Rd5 Nb3 Rg2+
2QnNbBr/2P5/1B6/Kb3k2/bR1BN1nr/R1n1b3/bB2n1R1/rR1q2B1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 a5 b4 d5 g4 h5 c5 e5 c6 a4 c7 e4 g5+ Ke7 f6+ Ke6 b6 h3 g6 d3 Kc3 a3 f5+ Ke5 b7 d2 b5 h4 b6 a2 f7 h2 g7 h3 f6 e3 Qg4 d1B Na3 e2 Bb2 e1R Bc4 Rh4 Nb5 Be6 Ne2 Nh6 g8R Nc6 b8R Ba4 b7 Qd6 Bb3 Nd8 Ng3 Bd7 Rf1 h1B Ne4 h2 Qh3 Bf3 Rg2 h1N Qg4 Be8 Qc8 d4+ Kc4 Qd7 Nbd6 Ng3 Kb4 Ng4 Rb1 Bd1 Rf3 a1B Bd5 Bb5 Ra3 Ne2 Bc4 Bb3 Be6 Bh6 f8B Ba2 f7 Be3 Bg7+ Kf4 f8B d3 Bb3 d2 Bgd4 d1N Bg8 Ndc3 Bfg7 Reh1 Bb6 Rh8 Bgd4 R1h4 Nc4 Qd5 Ncd6 Bed7 Ne8 Kf5 Rb3 Ra3 Ra8 Ra5 b8B Ra3 B8a7 Ba4 Qb7 Bdb5 Ka5 Qd7 Bf6 Qd1 Rb4 Bh6 Bg1 Bg7 Bab6 Bf8 Bc1 Bb2 Bce3 Bc1 Bed4 Be3 Ra7 Nd5 Bb2 Ndc3 Bfd4 Be6 Qc8 Ra1 Rb3 Bbd7 Ra3 Ba2 Rb7 Bb5 Ba7 Ba4 Rb4 Bb5 Bab6 Ba4 Qb8 Bdb5 Qc8+
1b1BB2R/1Rqn4/K1B3k1/1Nrn2r1/2n3r1/nQ2R3/3NPR2/BrnR1bq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 f5 b4 Kf7 d4 a5 Kd2 h5 Kd3 c5 Kc4 h3 b6 h4 Kb5 a4 b7 a3 g5 c4 d6 a2 d7 f3 d5 f2 d6 h2 Bb2 f4 Nf3 h3 Bg2 f1R Qd4 c3 Ba3 c2 Qb2 c1N Nc3 Rh5 Nd2 f3 Qb3+ Kg6 Bb2 f2 Bc6 Qc7 d8R Nd7 b8R Ra4 Rb7 Ne7 Re8 Nd5 Re3 Rg1 Rb1 f1N Ba1 Rg2 Rg1 h1Q Ra7 N7b6 d7 h2 d8B Nd7 Rb7 Rg4 Rg2 Bh6 Rf2 Qg1 Rf4 h1R Rf7 Nd3 Rd1 Nc1 Qc4 Ra6 Qb3 Rb6+ Ka5 Rb5+ Ka6 Rc5 b5 Bg7 b6 Be5 Nb5 Bg3 Bh8 a1N Bd4 Nc2 Ba1 N7f6 Be8 Na3 Bc6 Bf5 Be8 Be4 Bc6 Bg2 Be8 Kf5 g6 Rhg5 g7 Kg6 g8B Nd7 Bh7+ Kh6 Be4 Bh2 Rd3 Nfe3 Rc3 Nec4 Re3 Bf1 Bf3 Ne7 Bc6 Kh5 Ra7 Kg6 b7 Nd5 b8R Qc8+ Rbb7 Bb8 Ra8 Qc7 Ref3 Bg2 Be7 Qf2 Re3 Ba7 Rg1 Nd3 Rd8 Bb8 Bef6 N7b6 Bed7 Bh3 Rh8 Qg2 Be8 Nd7 Rc1 Qgh2 Rc2 Rb1 Rc1 Bf1 Rd1 Nc1 Bd8 Qg1 Rf2#
Q2Q2KR/b1B1q3/1N4Nq/R1q1Qbr1/6qn/QBQ3q1/n2Pr1Qb/3kb3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 b4 a5 d6 c5 d7 f5 Ke6 a4 Kf7 f3 g5 h3 g6 h2 g7 a3 b6 a2 b7 f4 b5 f2 b6 h4 Ba3 f3 Bh3 f1Q e4 Kd3 e5 c4 e6 f2 e7 c3 e8Q c2 Qc1 Ne7 g8Q Nf5 Bg2 h3 Qh7 Qe1 Be7 f1Q Qb2 c1B Na3 Nc6 b8Q Qff2 b7 Rg8 Bb4 Qc5 Nc4 Qg3 Bf3 Bd6 Qbg7 Kc2 Qh4 Bb2 Ba5 Bbe5 Be2 Nb4 Qgh6 Rg5 Qg6 Qe7+ Kg8 Qg4 d8Q Bg3 Qed7 Be1 Qh8 Bdg3 Qgg7 Nh4 Qdd6 Bf5 Bc7 Ra3 Nb6 Re3 Bb5 Re2 Qa8 Be5 b8Q B5g3 Rd1 a1B Nf3 Na2 Ne5 Bd4 Ng6 Be3 Ra1 Be5 Rf1 h1Q Bc4 Qhf3 Rh1 h2 Qbb7 Qfg3 Qg2 B5f4 Qge5 Bg1 Rb1 Bge3 Rb5 Kd1 Ra5 Bf2 Qc3 Bg1 Qhe5 Bd4 Rg1 h1Q Rf1 Qhh3 Rh1 Bg1 Qdd3 Bh2 Qa3 Be3 Qdc3 Nf3 Qdb8 Qcd6 Qec5 Bhg1 Nd7 Qde5 Qcd5 Ba7 Nb6 Q5d6 Qe4 Qc5 Qee5 Qhh5 Rh4 Bh2 Qc8 Q4h3 Qd8 Q5g4 Rh7 Qh6 Rh8 Nh4 Bb3+
Nn1K1B2/2R1n1bN/B2B4/1b1nb3/b4R2/Pk1B1qR1/n2Q1rR1/q1br2R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 h5 Kf4 b5 Kg5 c5 d4 e5+ f6 b3 f4 b2 g4 c4 d6 Ke6 d7 Kd5 f5 c3 a3 b4 Qd2 c2 Ra2 e4 Nf3 h3 Kg6 e3 Kf7 e2 g5 Kc4 g6 h2 d5 b3 g7 h4 d6 h3 Rg1 h1Q Ng5 h2 Nc3 b1N Nd5 b2 Nb6+ Kb3 Nh7 e1B Bd3 Ne7 g8B Bg7 Ke6 Bg3 f7 Ra5 f8B Nc3 f6 b1N f7 Qf3 Na8 h1B Bb2 Ncd5 Be5 c1B Rc2 Ra6 Rc7 Qe8 Bf4 Bb7 d8R Bc6 d7 Bb5+ Bd6 B3e5 Rdc8 Rc6 d8R Rc2 Rdd7 Rb2 Rc2 Nbc3 Rcc7 Na2 R7c3+ Ka4 Rdc7 Qc6 Rb3 Rb1 Rcb2 Qc3 Rc2 Qa1 Rcb2 Nbc6 Kd7 Nb8+ Kd8 Bg2 Qe3 Bh3 Rbg2 Bhd7 Qd2 Be8 Ng5 Rh2 Nh7 Bbc6 Ba6 Bb5 Rd3 Qf2 Rdg3 Qf3 Nf6 Bed7 Bh7 Kb3 Bd3 Ba4 Nh7 Bdb5 Rg6 Bcb2 R2g3 Rf2 R3g2 Rd1 R6g3 Nf5 Bfe7 Bc1 f8R Bh8 Rf6 Bg7 Bf8 Nfe7 Rf4
1bK2R2/kBRr3n/1Bb2N2/5qrP/N2Q1Brq/4q1r1/R2R3q/nBq3B1 b - - 0 1 illegal: No possible last move, all moves rejected
q1B2Nb1/B4q1r/1q5R/r3QBK1/2b2r2/k1Rn4/1NP1b1NB/N1n1br1N b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kf3 a5 Kf4 e5+ Kf3 Ke7 b4 Kd6 g4 d3 g5 e4+ Kf4 a4 f3 e3 b6 e2 b7 e1Q b5 Kc5 b6 Kb4 g6 d5 g7 h3 f6 a3 f7 a2 Be3 d4 Ne2 d2 Nc1 d3 Bg1 h2 Ne2 h4 Na3 h3 Nc4 Ra5 Nb2 Nc6 b8N Nd4 b7 Nh6 g8B Ng4 Bh7 Be6 Na6+ Ka3 b8B Ne5 Ng3 Bc4 Bf5 Rh7 Nc5 Qf2 Qe2 d1R Nb3 d2 Ba7 Qb6 Kg5 Nd3 f4 Bb4 Qe5 Ne2 f8N Nec1 Ng6 Rh4 Be2 Rf1 Beg4 d1B Bc8 Rh7 f5 Be2 f6 Be1 f7 Qf3 f8N Qf7 Nh4 Rf4 Rb1 a1Q Ng2 Qa2 Bgf5 Qa1 Bf2 Qa2 Rf1 h1B Bg1 h2 Rf3 Nc5 Rc3 N5d3 Nh4 Ba8 Ng2 h1R Bh2 Rhf1 Nh1 Bad5 Bg6 Qa1 Bgf5 Na2 Rd1 Nac1 Rd2 Qe8 Rd1 Bg8 Rd2 Qf7 Rd1 Nb4 Rd6 Nbd3 Rh6 Kb4 Rf6 Qa4 Rh6 Ka3 Qh8 Qac6 Qe5 Qa8 Na1+
3R4/2Q3nR/qkr5/7R/1rn1q1NK/NnBR3P/Br2Nnbb/r1R1N1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 c5 b4 Kc7 e4 g5 e5 f5 d6+ Kb6 d7 a5 d5 g3+ Kf3 c4 e6 c3 e7 c2 e8R g4+ Kg2 a4 d6 a3 Bc4 a2 Nf3 Bb7 Nd2 Ne7 Qf1 Rh4 Nb1 Nbc6 Rg1 Na5 Rh1 Ra6 Bb2 c1N Bc3 Qa8 d8R Ncb3 d7 Bh6 Bd5 Nc4 Rh8 Bf8 Ne1 f3+ Kg1 f2+ Kg2 f4 Rh7 Bc6 Na3 Nf5 Rc1 a1R Qe2 f1R Qe5 Bd6 Rh5 Kb7 b6 Ng7 b5 Rf3 Rdh8 Qe8 d8R Re3 Rf1 Re2+ Rf2 Rc2 R8h7 Rb2 Rd2 Qg6 Qe2 Qe6 Rd3 Qf5 Qc2 f3+ Kf1 g2+ Kf2 g1N h3 Qe4 Bg8 Ne2 Bf7 Nf4 Kg3 Bb8 Qh2 f2 Be6 Ka8 b7+ Ka7 Bf7 Bc7 b8N f1Q Nd7 Ba8 Bd5 Rc6 b6+ Ka6 b7 Be5 Nf8 Kb6 b8N Bd6 Ne6 Qfe2 Rd4 Nd3+ Nf4 Nf2 Rd3 Bc7 Na6 Be5 Nc7 Bb7 Ne8 Bb8 Rf3 Q2d3 Nf6 Bd6 Kg2 g3 Ne2 Bf4 Ng4 Bd6 Kg1 g2 Qf4 Bb8 Kh2 g1B+ Kg3 Ba8 Bg8 Qd6 Rd3 Qde6 Rf5 Qc8 Re5 Qa6 Reh5 Qf5 Rcd1 Nca5 Nf3 Re6 Nd2 Bg2 Nf3 Nc1 Ngh2 Rc6 Ba2 Ncb3 Ne1 Qd5 Qd6 Rb4 Ng4 Qe4 Kh4 Nc4 Rc1 Bc7 Qe7 Bch2 Qc7+
r2q2r1/q3bb2/2K1n1kq/4Rnr1/R3BrNq/6RP/1B2BNQ1/1B1R1nB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 Kf3 f5 b4 Kf7 e4 d5 c4 a5 e5 a4 h3 a3 c5 d3 c6 d2 b6 a2 b7 d4 b5 d3 b6 Ra5 c7 Nh6 e6+ Kg7 e7 Ra6 e8B Nc6 b8R Be6 c8B Ra8 b7 Bf7 Qc2 d1Q+ Be2 d2 Nc3 Be7 Bb2 Rg8 Ne4+ Qd4 Bcd7 Qc1 Nf2 Nd8 Bc6 d1Q Be4 Ne6 B8c6 Qf6 Re8 Qd8 b8B Qcd2 Rd1 a1Q Ba7 Qa6 Bc5 Qa7 Rh2 Q2d6 Rg2 Kh7 Rg3 g4+ Kg2 Qg5 Nf3 Qh4 Nh2 Qd2 Bcd5 Qc1 Ba2 f3+ Kg1 Qcg5 Bb1 Qg6 Bcd4 f4 Qd2 Nf5 h6 Qg7 Bc5 Kg6 h7 Qgh6 h8R Qf8 Rh5 Qh6 Kf1 Qdd7 Rb8 Qe8 Rb4 Qd8 Rg1 g3 Ra4 g2+ Ke1 Be8 Ng4 Bf7 Qd5 Ng5 Kd2 Ne6 Rge1 g1R Kc3 Rg2 Kc4 Rg1 Kb5 Rg2 Nh1 f2 Rg1 f1N Kc6 f3 Qd2 f2 Bcd4 Rh2 Rg3 Rg2 Qc2 Nh2 Bc5 f1R Bg1 Rf4 Nhf2 Nf1 Rga3 Qda5 Nh1 Bc5 Ba6 Rg3 Ne3 Bd6 Qg2 Qad8 Be2 Be7 Nf2 Rgg4 Rad3 Rg3 B4f3 Nfg7 Re5 Nf5 Be4 Rg5 Neg4 Nc7 Rb3 Ne6 Rg3
qb2bk2/1b3B2/1nq3N1/1n2N3/1rq1BR1P/n1N1N3/BBRnrBQ1/3b2K1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 h4 a5 e4 d5 c4 g5 b4 a4 h6 f3 c5 g4 b6 g3+ Ke1 a3 h7 a2 e5 f4 e6 g2 Kf2 d3 e7 d2 c6 d4 b7 d3 b5 Ra4 b6 Na6 b8N Nc7 b7 Rb4 Bb2 Nb5 c7 Nf6 Nh3 Nd7 Nc6 Nb6 b8N Bb7 Qe2 d1B c8B d2 Kg1 Ba4 Rh2 d1B Be6 Rg8 Na6 Qa8 h8B Rg5 Bbg7 Re5 Nc3 Ree4 Rb1 a1N Ne5 Nc2 Ba2 Nca3 Qf2 Re3 Bd3 Re2 Bh6 Bg7 Be4 Bf8 Rc1 Bg7 Rc2 Bf6 Ng6 Be5 Nc5 Bc7 Nd3 Bb8 Nd5 Kf7 Bb2 Ke8 Qf1 Kf7 e8B+ Kg8 Rh1 f2+ Kh2 g1N Qg2 f1Q Nde5 f3 Be3 f2 Nhf4 Qe1 Bc5 f1Q Bf2 Qc3 Bf7+ Kg7 Ne3 Qc6 Nfd5 Nf3+ Kh3 Nd2 Kh2 Bc7 Nc3 Bb8 Bg3 Qf4 Rf1 Qg4 Bf2 Qge6 Nf4+ Kf8 Kg1 Qec4 Nfg6+ Kg7 Bd3 Qd6 Qh3 Na7 Bg3 Be8 Rf4 N7b5 Be4 Qdc7 Bf2 Q7c6 Ne7 Kf8 Qf3 Bd6 Qg2 Bb8 N7g6+
R1Nb1n1R/K3Nn2/4RN1r/Q1Pr3b/2bn3q/B3Nr1k/r2b2q1/R1N2B2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 h5 Kc5 e5+ Kc4 d5+ Kd3 a5 c4 a4 b4 h3 f4 h2 g4 a3 c5 a2 b6 h4 b5 h3 b7 Rh6 b6 Nd7 b8R Be7 b7 Nf8 Ba3 Be6 Nc3 Ra6 Qd2 e4+ Kc2 e3 Kb3 d3 Kb4 e2 Kb5 e1B Nd1 d4 Qa5 d2 Ra8 d3 b8R Bb3 Ne3 d1R Ne2 d2 Nc1 Qd4 Re8 Bd8 Re7 Ra7 Kc6 Bc4 Re5 Ra6+ Kb7 Ra7+ Kb8 Rf7 Re7 Qe4 Ka7 Qg2 Rb1 a1R g5+ Kg7 f6+ Kg6 f5+ Kh5 g6 Kh4 g7 Ra2 Rbb8 Kg3 Rg1 h1Q Rc8 h2 Rcb8 Bc7 Re6 Kh3 Rc8 Rh5 Rce8 Nh6 g8N Bd8+ Ne7 Rh7 Qa4 Nf7 Qa5 R7h6 Nc8 Rg5 Nb6 Rg3 Nc8 Ng6 Rf8 Rf3 Rh8 Nf8 Bd3 Qg4 Bf1+ Qhg2 Rh1 Qh4 Rg1 Ne5 f7 h1N f6 Ng3 Nd6 Nfd7 f8N Nf7 Ng6 Nf8 Ne7 Nf5 Ndc8 Nd4 Ne2 Rb1 Nc1 d1B Rh1+ Kg3 Rg1 Bd2 Rh1 Rb6 Rg1 Rd6 Rh1 Ng5 f7 Rd5 Rg1 Ng6 f8N Nf7 Nd7 Nf8 Nf6 Kh3 Be2 Bc2 Rd1 Bg6 Bf1 Bh5 Nb3 Rh7 Ra1 Rh6 Nc1
r2nbRK1/1Rq2Bb1/BnbPr3/2k1q3/1N6/3N2N1/2b2NqB/B1qnQ1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 h5 g4 c5 b4 f3 g5 c4 g6 c3 g7 f2 b6 f6 b5 h3 b7 a4 b6 h4 Nf3 h2 Ne5 a3 Qe1 h3 Nd2 c2 Bb2 c1Q Nd3 a2 Rb1 Rh5 Ba1 Nh6 g8N Nc6 b8N Be6 b7 Bd7 Ne7 Qc8 Na6 Nd8 b8B+ Q8c7 Rb7 Be8 Nab4 f5+ Kf4 Rh4+ Kg5 f4 Kf6 f3 e4 Nhf7 Be2 Rh5 Rf1 h1Q Kg6 Re5 Kh7 h2 Kg8 Re6 e5+ Kd7 d6 Bg7 d5 Qg2 Nf5 h1B Bc3 a1Q Ng3 Qa5 Ba1 Qb5 Nde4 Qbc5 Rg1 f1N Nef2 Ne3 Rf1 Nd1 Ba7 Nc6 Bb8 Na5 Ba7 Nc4 Bb8 Kd8 d7 Ke7 d8B+ Kd7 Bg5 Nd8 Be3 Nb6 Bed4 Rh6 e6+ Kd6 e7 Re6 Ng4 Q5c3 Bg1 Qf6 Ngf2 Qe5 Nf4 Kc5 Ba6 Ba4 e8B Bc2 Ng4+ f2 Bf7 Bd3 d6 Bc2 Ba7 Nb2 Bh2 Nd1 Rg1 f1B Nf2 Bb5 Rf1 Qg1 N4h3 Bhc6 Nfd3+ Kc4 Rf2 Qg2 Rf6 Nd7 Bag1 Nb6 Nhf2 Be8 Bh5 Bc6 Rf8 Be8 Nb2+ Kc5 Bf7 Bbc6 Nb2d3+
2K3Nq/3P2n1/2n3b1/b1BBR1B1/N2BnNQ1/1r1b1qr1/1B1Nq2R/k3qn2 b - - 0 1 illegal: No possible last move, all moves rejected
Rrqn1bb1/bN2nB2/q3p1B1/2NqrQn1/RBr3R1/R5P1/1KR1k1B1/8 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 c4 Ke6 Kc2 Kf5 f4 h5 b4 a5 c5 d5 g3 d3+ Kb2 d4 b6 d2 b5 e3 c6 Ke4 f5 a4 f6 h4 g6 d3 f7 h3 g7 e2 b7 Ke3 b6 e1R c7 h2 Nc3 Qd7 Nh3 Rh5 Ne4 Nc6 b8R Rh4 b7 Nd8 Nd6 Rc4 Nf2 Qg4 Rg1 h1N Ra3 Be6 Nfe4 Nf2 c8B Nh3 Bg2 Ng5 Qc2 Ke2 Nc5 Bd5 Qb1 d1Q Bf5 d2 Rc8 Rb8 Bg6 Qh3 Rc7 Qc8 Qf5 Be6 Rh1 Bd5 Rh4 Qc2+ Ka1 d1Q Rg4 Qcd3 Kb2 Be6 Bd2 Qd5 Bb4 Q1d3 Rc3 a3+ Kb3 a2 Kb2 Kd1 Ra3 Re5 Rc6 Qf1 Rca6 Ke2 R6a4 Ra8 b8R a1B+ Kb3 Bd4 Ndb7 Bg1 Kb2 Be3 Ne4 Ba7 Nec5 Qc7 Rc8 Rb8 Qb1 Qf6 Qf5 Qcd7 Rc7 Qc8 Rc6 Bd7 Rc7 Qa6 Rc6 e6 Rc7 Ne7 g8B Be8 Rc6 Bh6 f8R Bg7 Bh5 Bg6 Bf7 Bh7 Rh8 Bf8 Bhg6 Bg8 Rh2 Qa5 Ra6 Bb6 Ra8 Ba7 Rh1 Qb6 Rc1 Qa6 Rc2+
N1N1Q1N1/n5q1/RNP1B3/1pR1R1b1/b3n3/r2Nqr2/nK1Bkb1r/4R2q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 h4 Kf6 f4 d5 c4 b5 Kc2 g5 a4 e5 c5 g4 h6 b3+ Kb2 g3 h5 e4 a5 e3 h7 g2 a6 e2 a7 e1B h6 d3 Nh3 g1R Ra6+ Qb6 Qe2 d2 Qe8 d1Q Na3 d4 Nc4 d3 Nf2 d2 Nd3 Bf2 Bh3 Rg3 Re1 Rf3 Nd6 Be6 Nc8 Be7 Re5 Qg1 c6 d1Q Bg4 Nd7 Bd2 Qe3 Bh3 Qg7 Bg4 Rb8 a8N Nc5 Bh3 Bd8 Bg4 Ne7 Bh3 Rf8 h8N Qh1 h7 Ne4 Nf7 Rh8 Nh6 Rb7 Bg4 Rd7 Bh3 Rd4 Rc5 Ra4 Bg4 Ra3 Bh3 Rf8 h8R Bf7 Bg4 Rh3 Rh7 Rh2 Bh3 Bh5 Rh8 Bd1 Rg8 Qh8 Rg1 Qg7 Re1 Rf7 Nd6 Nc8 Re5 Na7 Nc8 Qgg2 Bg4 Rg7 Bh3 Rg3 Rc5 Rf3 Ng8+ Kg7 Bg4 Bg5 f6+ Kh7 f7 Kg6 Bh3 Kh5 f8N+ Kh4 f5 Kg3 f6 Qgg1 Kb1 b2 f7 Ba4 Be6 Kg2 Nd7 Kg3 Bb3 Qgg2 Kc2 b1N f8R Nbc3 Ndb6 Na2 Rff5 Qgg1 Rfe5 Kg2 Re2 Kf1 Kb2 Qg4 Bd5 Qd7 Bb3 Qg7 Be6 Be1 Rg2 Bf2 Rg1+ Ke2 Re1+
2BB3n/b3q1BQ/1Pq3NB/1r4nR/2bNkB1r/2Kp2Q1/R1b1Br2/2q1n3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 a5 b4 d5 g4 h5 c5 e5 c6 a4 c7 e4 b6 a3 b7 d3 b5 h3 Rh2 a2 Qf3 e3+ Kc3 d2 Qe2 d1B Kb2 h4 Na3 d4 Bd2 d3 Kc3 Ne7 Qg2 e2 Qg3 e1N Nc4 Rh5 Ne2 Ng6 Ne5 Nd7 b8B Bc5 Nd4 Ba7 b6 Nh8 Ng6 Ba6 c8B Nf8 Be2 Nh7 Bc7 Qe7 Bd8 Bc4 Bc1 Bc2 g5+ Kf7 Rh1 h2 f6 h3 f5 Rb8 Bf4 Rb7 Rb1 a1Q+ Rb2 Qc1 Ra2 Rc7 Rg1 h1R Rf1 Rh2 Rh1 Rf2 Rh2 Kg8 f7+ Kg7 f8B+ Kf7 f6 Rc5 Bh6 Rh4 Rh1 h2 Bg7 Rb5 Bh6 Nf8 Bg7 Ne6 Bh6 Kg8 f7+ Kh7 f8B Nc5 Rf1 h1Q Bfg7 Qc6 Rh1 Ne6 Ne5 Rg4 Rh5 Rh4 g6+ Kg8 Bf8 Ng5 g7 Kh7 Ng6 Kg8 Qe3 Kf7 g8Q+ Kf6 Qg3 Qe8 Ne6 Kf5 Bfg7 Qc6 Qh7 Ke4 Nd4
K2N1Q2/2pQn3/3P1B2/bRN3Bb/3B2qk/1RB4B/1Bqnq1rr/1r4bn b - - 0 1 illegal: No possible last move, all moves rejected
Nqb2R1b/3bK2P/2R1R1Q1/2R1R1n1/1r1BNb2/1B5k/bpr2n1B/1nB4r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 f5 e4 g5 a4 b5 h6 c5 d6 b3 d7 b2 Ke6 g4 e5 g3 h7 g2 d5 c4 d6 b4 a5 f3 a6 f2 a7 b3 Nc3 b1B Na4 f4 Nf3+ Kg4 h4 g1R h5 c3 h6 b2 Nb6 c2 Bc4 f1B Ra5 Ba2 Rc5 Bh3 Nd2+ f3 Ne4 Nf6 Qd3 f2 Bb3 Rg2 Re1 f1N Kf7 Kh4 e6 Ng4 e7 Nf2 e8R Nc6 Re6 Rb8 a8R Nd4 Ra6 Nf3 Na8 N1d2 Rac6 Rb4 Re2 Qb6 d8R Nb1 d7 Bg7 Rf8 Qb8 d8B+ Ng5+ Ke7 Bc3 Ree5 Bhd7 Bc7 Rh2 Qd6 Kh3 Qg6 Rh1 Ree6 Rg8 Bh2 Bh8 Bd2 c1B Bdf4 Bg7 h8B Bd2 h7 Bd4 Bc7 Bf4 Bb6 Bc3 Bd4 Rh8 Be3 Rg8 Bc1 Bce5 Rcc2 Bh8 Bd4 Rg7+ Kd8 Rf7 R2c5 Rf5 Ke7 Rd5 Be5 Rd2 Bd4 Rc2 Nd2 Nd3 R2e5 Nf2 Ne4
1k4BB/R3B2q/Knr5/3q1RR1/1B1qPq2/bqN1np2/1r4bN/1rRQ3R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kc4 a5 e4 c5 b4 Kc7 g4 h3 g5 h2 g6 a4 g7 h4 Qf3 h3 Qb3 a3 Nf3 a2 Ba3 Ne7 g8R Ra6 Bb2 Rc6 Rg5 Nd7 b6+ Kb8 Kb5 c4 b7 c3 d6 c2 d5 c1Q Nc3 Qb1 Bc4 Nb6 d7 Rhh6 d6 Ned5 Qa4 Ne3 Bg8 Rh8 Ba3 Qb3 Rac1 a1Q Ka6 Rh5 b5 Rh6 Nd2 f3 Nf1 f4 Bb4 f2 Rf5 Qg5 d8R f3 d7 Qf4 Rg5 Rhd6 Re8 Rd2 d8B Rb2 Ree5 Qaa2 Bde7 Bf5 Rhg1 h1Q Nh2 f1R Rc5 Qg2 Rh1 Qg1 Rd5 Bc8 Rde5 Qd5 Ref5 Qac4 Qd1 Qb3 Bf6 Qf2 Bg7 Qfd2 Bh8 Q2d4 Be7 Rff2 Bb4 Rb1 Be7 Rfb2 Bb4 Kc7 Be7 Be6 b8B+ Kc8 Bbd6 Bd7 Nf1 h2 Ba3 Kb8 Bab4 Nc8+ b6 Be6 Rf7 Bh3 Rf6 Bg2 Rff5 Rc5 b7 Nb6 Rg1 h1Q Nh2 Rc6 Re1 Qg1 Rf1 Qf2 Re1 Q2h4 Rh1 Kc7 b8R Qh7 Rb7+ Kc8 Ra7 Kb8 Bd8 Bd6 Be7 Bc5 Ba5 Ba3 Bab4
BB3rk1/nN5r/K3Qrrn/2bRB1PR/bq4r1/BNq5/2p2RRq/2B5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Ra2 a5 d4 f5 Kd2 Kf7 Kc3 h5 Kc4 c5 b4 f3 e4 a4 g4 a3 b6 f4 Kb5 h3 b7 h4 d6 f2 d5 c4 d7 c3 g5 f3 e5 h2 e6+ Kg7 e7 h3 e8R Kf7 d6 Be7 Bg2 f1R Ne2 f2 Qe1 Rh7 Nd2 Rg1 Nc4 f1R Na5 Rf6 Nd4 Nc6 Re2 a2 Ndb3 Rb8 Ka6 a1Q b5 c2 b6 Na7 Rd2 Qc7 d8B Qc5 d7 Qac3 Qe5 Bd6 Be7 Rg6 d8R Bd7 Bc6 Rg4 Rg2 Nh6 Qe2 Kg7 Rf8 Qa3 Rf4 Qa4 Bf8+ Kg8 Rf3 Qf4 Rff2 Rc8 Be4 Ba4 Be7+ Qf8 Bc6 Bb4 Rd5 Qf4 Bd6 Rf8 Qe7 Qfd4 Be5 Bc5 Ba3 Nf7 Qe6 Rf6 Bf4 Qdb4 Bfc1 Rhh6 b8B Rhg6 b7 Qd3+ Bb5 Qdc3 Rhf1 h1Q Be5 h2 b8B Qg1 Bc6 h1R Ba8 Rh7 Nb7 Qh1 Rfd1 Qh5 R1d3 Qh1 Rh3 Qh2 Qc6 Nh6 Rh5 Rd8 Qd6 Rdf8 Qe6+
q1BRRKnB/4R2q/1N2B2R/prN1qn2/3QqRB1/q3Pr2/5kb1/2b3n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kf5 a5 g4 h5 c4 d5+ Ke5 f5 b6 f3 b3 f2 g6 d3 b7 d4 g7 h4 g5 f4 g6 h3 Ra4 d2 Nf3 h2 Nc3 d3 Bb2 Nd7+ Ke6 Rh3 Kf7 Rb8 Nd4 Rf3 Bh3 f1N Bg4 Ne3 Nd5 Nf5 Nb6 Qg5 Re1 h1Q e3 Qh7 Rh1 Ne5+ Ke8 Bd6 Rh6 Be7 Qa1 d1Q b4+ Kd6 b5 d2 Bc3 Qh1 Ne6 d1Q Nc5 Qd4 Qb2 Bf6 Kf8 Qe4 Bd4 Qc1 Qc3 Qa3 Rb4 Ra8 b8R Bb7 Re8 Rb8 Qd2 Bc6 Ba1+ Bd5 Qd4 Qb1 Qb2 Rh3 Ne6 f3 Nd7 f2 b6 f1Q b7 Qh4 Rd8 Nge7 g8B Qg3 g7 Qh1 Bf7 Nf3 g8R Ng1 Rg7 Ng8 c5+ Kc6 Qd2 Bb2 Re4 Qc7 Rf4 Bc1 Be5 Rg3 Qd4 Qbd3 Bf6 Qe5 Re8 Qa6 Rd8 Qa8 Re8 Rd8 b8R Bf3 Nb6 Rd5 Rbd8 Qg2 Nc4 Qc2 Nb6 Bg2 Ng5 Kb5 Be6 Rf3 Rge7 Qb1 c6 Rc5 c7 Qbe4 Bc4+ Kb4 c8B Rb5 Qd1 Kc3 Ne6 Qa2 Nc5 Qa3 Qd7 Kc2 Bd5 Kd1 Bh8 Ke2 Be6 Kf2 Qd4
5rN1/1NR2R1b/2bn1pnB/Q3bq2/1R4q1/Kb1Q4/PR2qb2/1RRB2rk b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 b5 e4 g5 h4 f3 h6 f2 h5 c4+ Kb2 g4 h7 f6 h6 c3+ Kb3 c2 Be2 f1Q Nc3 g3 Nf3 g2 Ng5 g1Q Rh4 Qg4 Rb1 Nc6 Qd3 Nge7 Bd1 Na7 Ne6 Ng6 Nc5 Rg8 h8R Qe8 h7 Qff5 Bh6 c1B Rh1 Bf4 e5+ Kc7 d6+ Kc6 d7 Bb7 d8Q Nc8 e6 Be5 e7 Nd6 Kb2 b3 Nd5 b4 Qa5 Rg7 Rg8 Rb8 h8R Rd8 Kc1 b2+ Kc2 Ra8 Rh7 b3+ Kc3 Rb8 Kb4 Ra8 Rc1 b1B Ka3 b2 Rgh8 Rg8 Rf7 Bc2 Rhh7 b1B Rh2 Bb3 Rb2 Qec8 e8R Qe2 Re6 Qfg4 Re8 Qcf5 Rb8 Be7 Rhg7 Bd8 Rh7 Bb6 Rhg7 Bc8 Rh7 Bd7 Rhg7 Ba7 Rb4 Raf8 Nb7+ B1c2 Nb6 Be8 Nc8 Bc5 Rc7+ Kd5 Rgf7 Bc6 Ne7+ Ke6 Rc8 Rg7 Ng8 Kd5 Rcc7 Bb1 Qd2 Ke4 d5+ Kf3 Qd4 Kg2 Qd3 B1c2 Rbb1 Kh1 Rb2 Ne8 d6 Bf2 d7 Nd6 d8R Nh4 Qd4 Bba4 Rb6 Qh3+ R2b3 Qfd3 Rb8 Rg1 Nd8 Qhg4 Qdd5+ Qde4 Rbb1 Bd3 R6b2 Bb3 Qc4 Qe4f3 Qca6 Bh7 Rb4 Ng6 Nb7 Qff5 Qd3
1B3b2/b1RB1Rn1/3P2bR/K1NB3q/R5k1/b1rq2Br/b1q3p1/R1Nn2Q1 b - - 0 1 illegal: No possible last move
3QB1n1/n1p2qn1/K2n3r/NBB2N1k/q2Rb3/b5P1/5NNr/RN3rBn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 h5 Kd2 f5 Kc3 Kf7 Kc4 Kg6 b4 a5 e4 a4 b6 f3 Kb5 f2 g3 f4 b7 f3 d6 a3 e5 a2 d7 h3 d5 h4 e6 h2 d6 h3 e7 Ra3 e8B+ Kh7 Be3 Qf6 d8B Ra6 d7 Nc6 b8N Qf7 Be7 Kg6 d8N Kh5 Ne6 Bb7 B7c5 Rh7 Be2 f1N Qd8 Rh8 Bc4 f2 Bed4 Ne3 Nf4+ Kg4 Bf1 Nf5 Ng2 Ng7 Bc4 f1R Bf2 Nce7 Nc6 Kh5 Nd4 Be4 Nf5 Rah6 Bfe3 Nc6 Ka6 R8h7 b5 Na7+ b6 Bd6 b7 Be7+ Bb6 Ba3 b8N Rh8 Bcb5 R8h7 Nc3 Rh8 Rd1 a1Q Nb1 Qd4 Nc6 Qa4+ Na5 R8h7 Ne2 Rh8 Rg1 h1N Nec3 h2 Bc5 Nf2 Rd4 h1N Nd1 Ng4 Rd3 Ne5 Nf2 Nc4 Rd4 Rd1 Re1 Nd6 Re2 Rf1 Ra2 Kg6 Ra1 Rh2 Bb4 Kh5 B6c5 Rh7 Bd2 Rh6 Be3 Ne7 Nd1 Ng8 Bg1 Rh7 Nf2 Rh8 Ne1 Rh6 Ng2
5RBN/p1R5/2q3R1/2rNkrb1/2n1b1PB/2qQb3/RrQ1Rn2/r2rRK2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 e4 Kd6 b4 h5 g4 f5 b6 c5 b7 h3 b5 c4 b6 h2 Be2 c3 Nh3 h4 Bd3 c2 Kf1 f3 Bc4 f2 Ra2 f4 Bb3 Nd7 b8R Bh6 b7 Ngf6 Nc3 Qc7 Ng5 h3 Qd3 Nb6 e5+ Kd7 d6 Nc4 d5 Ne4 Bd2 c1B Nf7 Bg5 Be1 Rh5 Nh8 Be3 Qc2 Qc5 Rg1 Qa5 Rg2 h1Q+ Rg1 h2 e6+ Ke8 d7+ Ke7 d8R Kf6 d6 Ke5 e7 Bf5 Rbc8 Rb8 Nd5 Qc3 d7 Bg6 Ke2 f1R Rf8 Nf2 d8Q Be4 Rc7 Qg2 Qd7 h1R e8R+ Be7 Bd2 Rd1 Re1 Rf5 Rg8 Rhh5 Rg6 Qh1 Rf8 Bg5 Qb5 Na5 Qbd3 Nc4 Rg1 Ra1 Be1 f3+ Kf1 Nd1 Bh4 f2 Ke2 f1R Rg2 Nf2 Rh2 Re8 b8R Rfd1 Rg2 Re7 Rg1 Re6 Re1 Rb6 Ra8 Qf3+ Kf1 Rb5 Ba4 Rbb1 Bb3 Rb2 Rae8+ Be7 Rd8 Na5 Nf4 Rf7 Nh3 Qf6 Bc4 Qc6 Qd7 Rg5 Be6 Nc4 Nf4 Bf6 Bd5 Kd4 Qd6 Be7 Rdd7 Rf6 Bg8+ Rd5 Rdd8 Rf5 Rdd7 Bg5 Qa3 Ke5 Qab3 Rb5 Rd2 Qb4 Nd5 Rc5 Qbd3 Qc3 Re2
qN4N1/3n1K1N/1R1P1BBR/nb1r1Q1B/1N2n3/br5n/pB1nnn2/3k3N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 h3 b6 h2 b7 c4 g6 f3 d6 h4 d7 f2 Ke6 c3 d5 c2 e5 h3 g7 f4 Qg4 a4 Bc4 f1N Be2 a3 Bd1 a2 Ne2 Ra3 Qf5 f3 Ng3 f2 Bb2 c1N Kf7 Nc6 b8N Ne2 e6 Rh5 e7 Ba6 e8B Nf6 g8N Bb5 Nc3 Na5 Nce4 Nd2 Rb1 f1N Ng5 Nde4 Nh7 Nfd2 Bc2 Qc8 d8B Nd7 Bdf6 Qa6 Bd1 Qa8 Bc2 Bc5 d6 Rg5 Qf4 Re5 Qf5 Rd5 Bd1 Nf4 Bh5 Ne2 Rhf1 h1N Bg6 Nhf2 Nh1 h2 Bh5 Nac4 Na6+ Ka5 b4+ Ka4 Rg1 Kb3 Rg6 Kc2 Rh6 Rb3 Bg6 Na5 Bh5 Bc6 b5 Nh3 b6 Bb5 b7 Bb4 b8N Ba3 Ng3 h1N Bg6 N1f2 Nh1 Nc1 Nb4+ Kd1 Bbd4 Rg3 Rb3 Ne2 Bb2 Neg1 Rc3 Re3 Rc6 Ne2 Rb6 Rb3 Bh5 Bc6 Ke6 Ba4 Beg6 Bb5 Kf7
b1bN2K1/1BN1b3/1Pnbp3/r1BbB1B1/N3n1q1/1b1r4/NbBR2Q1/4kR2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 c4 Ke6 g4 Ke5 f4+ Kd6 b4 h5 b6 a5 f5 Ke5 b5 Kf4 f6 Kg3 b7 Kf2 c5 d5 c6 h4 f7 e6 c7 a4 g6 a3 g5 a2 g7 d3 Kc3 h3 Kd4 e3 Ke5 d4 b6 d2 g6 h2 Qg4 d1B Ne2 d3 Nec3 d2 Bd3 e2 Na4 e1B Rf1+ Ke3 Bc2 h1B Nbc3 Na6 b8B Rh6 Qg2 Be7 f8B Nf6 g8N Nb4 g7 Rh3 Nh6 Ne4 g8N Bf3 Nf6 Bf2 Rb1 a1B Ne8 Bb2 Nf7 Qd7 Nd8 Ra5+ Nc5 Qc6 Ra1 Qa4 Ra2 Bb7 c8B Rg3 Bd7 Bc8 Bc6 Bg1 Nc7 Bh2 Bd3 Qd1 Bc2 Qe2 Bd5 Qc4 Na4 Qe2 Bd1 Kd3 Bb3 d1B Bg5 Bc2 Bf6 Bd1 Bc2+ Kd2 Bh4 Bg1 Bf6 Bgc5 Bb7 Rh3 Rf2 Ke1 Bg5 Rg3 Ra1 Qc4 Rd2 Rh3 Bb1 Bb3 Bc2+ Bd1 Rc1 Qe2 Rb1 Qg4 Ra1 Bd5 Rc1 Ba3 Na2 Rd3 Rb1 Nc3 Rc1 Bb2 Rb1 Bed6+ Kf6 Nc6 Kg7 Ne4+ Kg8 Bb4 Bg7 Be7 Bd4 Bbd6 Bc5 Bf8 Na8 Bde7 Be5 Bd6 Ra1 Bfe7 Bb1 Bc2 Nc7 Bcb3 Bc2+ Bc1 Ba3 Nf6+ Kh8 Bf3 Rb1 Nd4 Ba6 Ba8 Bb4 Nc6 Qd5 Kf1 Bb7 Bg2 Bc5 Bf3 Qd4 Bfd5 Qe3 Ne4 Qg3 Nc3 Kg8 Ne4 Rd1+ Ke2 Rf1 Bb2 Rbd1 Nb8 Rf4 Nc6 Qg2+ Nf2 Rd2+ Ke1 Rf3 Ne4 Rf1#
r3B3/1Brk3n/N2rr1R1/1nRR2Bq/1b1Q1nN1/q1B1Pq1p/R7/1B1bK3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 g4 f5 c4 d5 b4 h5 e3 a5 g6 a4 c5 h4 g5 d3 c6 a3 g7 h3 c7 f3 g6 d4 b6 a2 b5 f4 b7 Qe7 b6 Nf6 g8R Nc6 b8B Bg4 c8B Rh6 g7 Qa3 b7 Nh7 Qd2 Re6 Bb2 Na7 Nc3 Nb5 Na4 Kd8 Rc1 a1R Bc3 Ra2 Qd1 Rc2 Rh2 Ke8 Nc5 d2+ Kf2 d3 Na6 Ke7 Bbe5 Bh5 b8R Kd8 Bb7+ Kd7 Rg2 Bb4 Bf6 Bg4 Bg5 Bh5 Bcf6 Rc7 Bc3 Bg4 Qa4 d1R Rc2 d2 Bd3 Rb1 Rgc8 d1Q g8B Rb2 Re2 Rd2 Bb1 Rdd6 Ra2 Qd5 Kf1 f2 Bf7 Bd1 Nf3 Qf5 Rg4 Qg6 Nh2 Qh5 Bd3 Bb3 Ke2 f1N Ke1 f3 Bb1 Bd1 Rgg2 Ng3 Ng4 Ne2 Rg3 Rc4 Rc5 Nf4 Rd5 Rc7 Rc8 Bc5 Qd4 f2+ Kd2 f1Q Rg1 Qf3 Ke1 Bb4 Rgg2 Rc4 Rcc5 Re7 Rg1 Re6 Rc8 Ng6 Bh6 Re7 Nh2 Ngf8 Rg6 Ne6 Bg5 Nf4 Ng4 Rc6 Be4 Re6 Bb1 Rb6 Rc4 Rc6 Rcc5 Rc7 Be8+
rBN1Rr1n/3NB3/qqB2n2/2Nb1Q1R/N6B/Kp1P3r/3b1k2/3q1Bqb b - - 0 1 illegal: No possible last move
q2r2q1/R6B/1B1B4/2nn1QB1/N3qP1K/n1p2Br1/R1n1N3/Rbb1Rkr1 b - - 0 1 illegal: No possible last move, all moves rejected
1b4bn/1Bb3r1/qq1rbBn1/3N2p1/2P2RNB/BQQ3BK/3Rn1B1/2k1q3 b - - 0 1 illegal: No possible last move
1brqr3/1kn4b/3nB2B/4pbQ1/1NBq4/2R1QPN1/2qnB1KB/2Rn2B1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 a5 g4 h5 b4 d5 f6 Kd7 g5 Kc7 g6 h3 f7 h4 g7 h2 c5 h3 b6+ Kb7 b5 a4 Nc3 a3 Qd2 d3 Na2 d4 Nb4 a2 Be2 Na6 Kf1 Nf6 g8B Bf5 Qg5 Ne8 Be3 d2 Rc1 d1N Rc3 a1Q f3 d3 Bd4 d2 Bf2 Bg7 f8B Nd6 Bgc4 Be5 Bh6 Re8 Bd4 Rc8 c6+ Kb8 b7 Nc7 Bb6 Qa7 Bf2 Qd4 Qe3 Ka7 b8B+ Ka8 b6 Bh7 Ba7 Nb2 Bg3 d1N Bed3 e6 Ne2 Bf4 Rg1 h1Q Bh2 Be5 Ng3 Qg2+ Ke1 Qd2+ Kf1 Qc2 Be2 Bf4 Rh1 Be5 Bb8 Bf4 Bg1 h2 Kg2 Be5 Bd3 Nbc4 Qg5 Na6 c7 Nd2 Bc4 Kb7 Be3 Nb2 Rc1 Bf4 Bg1 h1B+ Kh3 Bg2+ Kh2 Bh3 Kh1 B3f5 Kg2 Be5 Qe3 Qf6 Qg5 Nd1 Qe3 Rcd8 c8B+ Ka8 Bd7 Rc8 Bc7 Qd8 b7+ Ka7 Qg5 Nb5 Bd6 Nac7 Qe3 Kb6 Qg5 Bf4 Be5 Nd6 b8Q+ Nb7 Qa8 Nd6 Qa5+ Kb7 Qa3 Be3 Bf4 e5 Bde6 Qde4 Bh2 Ba7 Be3 Bb8 Beg1 Qg4 Qa5 Qf4 Qc5 Qh4 Qf2 Qd4 Qfe3
4N3/1n4b1/2n1N1B1/r1QpN2b/R1qr1NbR/rknP2K1/2R1rRN1/1B3q2 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 f4 Kf7 Kf2 e5 g4 d5 c4 a5 b7 h5 f6 Ke6 b6 h3 c5 e4 g5 e3+ Kg3 h2 g6 e2 g7 e1R c6 b3 f5+ Ke5 f7 Kd4 c7 b2 f6 a4 Nh3 a3 Qc2 a2 Nf4 Rh7 Nc3 b1N Bd3 Ra5 Nd1 Re2 Ne3 Nd7 b8N Ne7 g8N Nc6 b7 Nc5 Nd7 Nc3 b8R Nb7 Neg2 Bg7 Ne5 Bg4 f8N Qc8 f7 Rh8 Rhc1 h1Q Nf6 Qf1 Ne8 Rh7 Bg6 h4+ Kh2 h3 Kg3 Kc5 N8e6+ Kb4 f8R h2 Rf7 h1B Ra8 Qb8 c8B Qc7 Rab1+ Ka3 Rb4 a1R Bd7 Rh4 d3 Nb5 Qc5 Nc3 Rc2 Ra2 Ra4+ Kb3 Rf5 Ra3 Rh5 Rh2 Rh4 Re4 Rf2 Rd4 Rc8 Bh5 Ne3 B1f3 Neg2 Ncd8 Bb5 Nc6 Ba6 Be2 Bc4+ Kb2 Qe7 Ncd8 Ne3 Nb1 Ba2 Qc2 Qc7 Beg4 Rf3 Re2 Rf2 Qb3 Qb6 Qb4 Rc1 Nc6 Qc5 Nc3 Neg2 Qc4 Bb1 Kb3 Rc2
1b1Rrn2/2QnB1R1/k2RN3/1PRp4/b2rB3/4N3/2qRqbRK/rQ3bn1 b - - 0 1 illegal: No possible last move
2R2nqN/n6N/2B2bR1/pBqq3B/b1bQ4/n3PnBK/2r1N3/rk1N3B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 c4 Ke6 b4 Kf5 g4+ Ke4 Kg2 f5 c5 d5 b6 h5 g6 d3 b5 h4 g5 h3+ Kh2 f3 e3 d2 b7 f2 g7 d4 c6 f4 c7 f3 g6 d3 b6 Nc6 b8N Nf6 g8B Ba6 c8B Bc4 b7 Nh7 g7 Be7 Bge6 Bf6 g8B Nf8 Bcd7 a5 Be2 f1Q Bg4 f2 Bb2 Na7 Nc6 Rc8 b8N Qb6 Ra4 Qc5 Ne5 Rc7 Kg3 h2 Bh5 Qe1 Bgf7 f1N+ Kh3 Rc6 Ra1 Rc7 Qa4 d1B Ng6 Nd2 Be5 Nf3 Bg3 d2 Bg8 Rh7 Nh8 Rg7 Qb4 Ba4 Bb5 d1N Nd7 Qd2 Bc6+ Qdd5 Bgf7 Nb2 Nc3+ Kf5 Nd1 Ke4 Be8 Rh7 Bb5 Qg8 Rc1 Rc6 Bf1 Rf7 Bg2 Kd3 Ne2 Rg7 Rb1 Kc2 Rg1 Rg4 Ra1 Rf4 Ra2 Kb1 Bh1 Rd4 Qc3 Rd2 Qd4 Rc2 Ra3 Rc8 Rc3 Rb8 Ba6 Rb3 Bb7 Ra3 Bc6 Ra1 Rg2 Bd3 Bb5 Nc4 Rg1 Na3 Rg2 Ne6 Nf8 Bc4 Nh7 Nf8 Bec6 Qb4 Bb8 Qe7 Rg6 Qc5 Bg2 h1Q+ Bh2 Qg1 Bh1 Qgg5 Bg3 Qcd5 Qd3 Bcb3 Rc5 Bc4 Qd4 Qge5 Ba8 Qe7 Rc8 Qec5 Bac6
1R4r1/4rN2/1r1bNPb1/nB6/NB4Kb/qq1R3p/3nn2N/nkRRQN2 b - - 0 1 illegal: No possible last move, all moves rejected
3q2Rn/qn2k1nR/BN3pbb/qr2BR2/1BrNB3/2B1P2K/5R1Q/3n1r2 b - - 0 1 illegal: No possible last move, all moves rejected
1R2b1qR/1B1n4/bn1B1p1R/1r1q2r1/1rN2PBN/1RK4B/q1b1R2Q/1k1r4 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 g4 Kd7 b4 Kd6 f4 Kd5 b6 Ke4 g5 a5 d5 h5 b7 e5 d6 h3 g6 h2 d7 h4 g7 a4 b5 h3 b6 a3 Ra2 f6 Kb4 Ra5 c4 Ne7 g8B Rb5+ Kc3 Rh5 c5 Nd5+ Kc4 Rg5 Qa4 d1B c6 d2 c7 Bc2 Rb2 d1R Qa5 a2 Qd2 a1Q Be6 Qg8 d8R Nd7 b8R Ba6 b7 N5b6+ Kc3 Qa2 c8B Rb4 Qf2 Rd5 Qh4 Rdb5 Nd2+ Ke3 Bg2 e4 Ngf3 Ke2 Bf1+ Kd1 Nc4 e3 Bg4 e2 Rb3 e1R Ba3 Qd5 Rh8 Qg8 Rb2 Kc1 Qf2 Rd1 Nh4 Ba4 Re2+ Kb1 Rh6 Bc2 Qg3 Rb2 Bd6 R2b4 Rg1 h1B Qh2 Bhe4 Rg3 Bg6 Ra8 Be8 b8R Rgc5 Bb7 Rg5 Qg1 h2 Bfh3 h1Q Qh2 Qhd5 Rd3 Bh5 Rde3 Qg6 Rbh8 Qgg8 Rb8 Be8 Rd3 Qf5 Kd4 Rf1 Ra3 Rd1+ Kc3 Qfd5 Rb3+
NKQ3q1/1n1Nn2N/Pb4q1/1Bn1rb1q/1R3R2/r3p1B1/2r1N3/k2QNr1N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 b5 g4 h5 a4 b3 f4 Kb4 d4 c5 g5 e6 d6 b2 d5 c4 g6 h3 f6 c3 g7 h4 f5 c2 f7 Kb3 a5 h2 d7 b4 d6 h3 a6 Rh5 Bb5 Ne7 Na3 b1R Bf4 Kb2 g8N c1N Ne2 b3 Rf1 h1R Nh6 h2 Nc2 Rg1 Rf3 h1Q Ra4 Ra1 Ng4 Rf1 Nf2 Ra3 Ne1 Ka1 Bg3 b2 Rb4 b1Q Rff4 Rh2 f6 Qg6 Rfc4 Bh6 f8N Be3 f7 Bb6 Nh7 Qdg8 d8N Bd7 f8N Nbc6+ Kf4 Na5 Ke5 Nb7 Rf4 Bc8 d7 Qf3 Nh1 Ra7 Nf7 Qfh5+ Nfg5 Rg2 d8Q Rgf2 Nc3 Rc2 Ne2 Ra8 Nd7 Rb8 Qd6 Nb3 Qc6 N3c5 Qf3 Na5 Kd6 e5+ Ne6 e4 Qb3 e3 Qc7 Bb7 Qc8 Be4 Qd5 Bf5 Qb3 Ba7 Kc7 Rb6 Qd5 Nab7 Qd3 Rd6 Qd2 Bb6+ Kb8 Rd5 Nc7 Re5 Na8 Rc4 Qd3 Rc2 Qd1+
1r2NrB1/n4P1B/r1qR2rB/b2BK3/1p4BQ/3N2Rb/N5b1/nn1qk1N1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 b3 Ke3 Kd7 Kf4 Kd6 d4 h5 g4 b5 a4 c5 g6 c4 g7 h4 a5 e5+ Ke3 c3 f4 b2 a6 c2 g5 h3 a7 h2 f5 Nc6 g6 Nb4 f6 Ne7 f7 Rb8 a8B Nec6 Qg4 Na7 Bh3 Qd7 Bd2 c1R Ra6+ Rc6 Nc3 b1N Bb7 Be7 Qh4 Rf8 Na2 Bd8 Be6 Ba5 Bf5 Qe6 Rb6 Kc7 d6+ Kd7 d5 Nc2+ Ke2 b4 Bh6 Na1 Ke3 Nc3 Bh3 Nb1 Ba8 Ba6 Bg4 Bf1 g8B Bg2 g7 Bf1 Rb5 Ra6 Rb6 Bg2 Ke2 e3 Kd3 e2 Bh7 e1R g8B e4+ Kd4 e3 Bb7 e2 Bc6+ Kc8 d7+ Kc7 d8N Qc8 Ne6+ Kd6 Nc7 Rd1+ Ke3 Kc5 Kf4 Kc4 d6 e1Q d7 Rd6 d8N Qd1 Nb7 Rg6 Bd5+ Kd3 Ne8 Kd2 Rd6 Qc6 Nc5 Bf1 Nd3 Bg2 Nf2 Ke1 Ke5 Bh3 Nf3+ Ke2 Rg1 h1B Rg3 B1g2 Ng1+ Ke1 Nd3+
nNQr1q1R/2BBp3/P1bbK3/Q1QQ4/q4Rr1/q1n5/2n3NQ/qk2b2Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 b5 g4 h5 f4 h3 a4 h4 g5 h2 a5 h3 d6 b3 d4+ Kb4 f6 c5 f7 c4 d5 b2 d7 c3 f5 c2 a6 Kb3 f6 b4 d6 Nh6 g6 Bg7 f8Q Bb7 Bf4 Bc6 Qc1 Ng4+ Ke6 Ne3 f7 Rh4 Nc3 b1N Nb5 Be5 g7 Nc3 g8Q Rg4 Qh6 Qf8 d8Q Nd7 Na7 Nb6 d7 Bd6 Qc7 Rd8 Ra4 Na8 Qa1 c1B Bb5 Kc2 Nf3 b3 Nh4 b2 Ng2 b1Q Rd4 Be4 Qc5 Bd2 Nc6 Qb4 Nb8 Bc6 Qa5 Qb2 Qgh8 Qa3 Be5 Qa4 Rf4 Be1 Qh5 Kb1 Q5h6 Qg7 f8Q Nc2 Qf5 Qf8 Qfh7 Re8 d8Q Qa3 Qc8 Rd8 Qd3 Qa4 Qdd5 Qa3 Rg1 h1Q Qh4 Qh2 Rh1 Qg1 Qg3 Qd4 Qh2 Qda4 Qh4 Bb7 Bd7 Bc6 Rhf1 Rg7 Qh1 h2 R1f3 Rg8 Rh3 Rg4 Qg3 Q3b4 Rh8 Qba3 Qhg1 h1Q Q3h2 Qa1 Qf1 Qg1 Qff3 Qe3 Qf1 Qc1 Qfh1 Qca3 Qcd4 Bc5 Bc7 Bd6 Q4c5
1rR1q1b1/k2PR1K1/rnQR2b1/p1B5/r3B3/1nRBBqb1/3B1b1n/4N1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 c5 d4 Kc7 e4 Kb7 b4 h5 g4 h3 g5 f3 d6 f2 b6 h4 d5 c4 b5 h2 g6 c3 d7 c2 g7 h3 d6 f4 Ra3 f3 Be3 c1B Qa4 Rh7 Nd2 Na6 Bd3 f1R Rc3 f2 Ndf3 Ne7 Kf6 Qe8 d8R Rb8 g8B Nc5 e5 Be6 d7 Nc8 Ne1 Rh4 Bgh7 Bd6 Kg7 Bg8 e6 Nb3 e7 Bg3 Bhg6 Rc4 Bge4+ Rc6 Bc5 Bg5 Be3 B5h4 Bd2 Ka8 b7+ Ka7 Qc4 Rh6 Qc6 Nb6 Rc8 Rf6 Nef3 Rc1 Ne1 f1N Be3 Ra1 Bd2 Qh5 e8R Ra4 Re7 Qe8 Ngf3 Nd4 Rg1 Bf2 Rg6 h1Q Ng1 h2 Rh6 Qf3 Be3 Rf4 Rd6 h1B Bd2 Nh2 Be3 Bhg3 Bd2 Nc4 b6+ Ka6 Be3 Nb3 Bc5 Rf6 Be3 Ra8 b8B Bg2 Ba7 Rb8 Bd2 Bh3 Be3 Bf5 Bc5 Bg6 Be3 Rf5 Bd2 Rb5 b7+ Nb6 Be3 Ra8 b8B Nd2 Rde6 Nb3 Bd6 Rb8 Bdc5 Ra8 Bb8 Ra7 Bbd6 Ra8 Bdf4 Ka7 Rd6 Rb8 Bcd4 Rh5 Bd2 Rh6 Bfe3 Bf5 Qc4 Rf6 Qb5 Bg6 Bc5 Re6 Rd4 Rd6 Ba3 Nd5 Qc4 Ra6 Qc6 Nb6 Bc5 Bc7 Rd5 Bcg3 Rd6
5Q1N/Q1pn2Q1/1n3Q1R/b4qPr/1Bk2rBN/5r2/1Q3qQK/2nbq1Rn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 f5 d4 h5 g4 a5 Kg2 a4 b6 a3 b5 f3+ Kh2 f4 g5 a2 e5+ Kd7 d6 Ke6 b7 Kd5 d7 h3 b6 h4 e6 f2 e7 f3 e8Q Ra4 Qee2 Bb4 Bd2 Ba5 Na3 Qf8 d8Q+ Bd7 Qf6 Bg4 Nb5 Ne7 Bb4 Rh5 Nd6 Nd7 b8Q Nc8 b7 Ncb6 Qa7 Qf7 Rb1 a1N b8Q Nb3 Bg2 Qg6 Nf7 f1R Nh8 Qf5 Qdd3 Rf2 Qc3 Nc1 Qcb2 Ra3 Qbf8 Re3 Qed2 Kc4 d5 Rf1 d6 f2 Qfe5 Bd1 Bf3 Ra3 Bg4 Rf3 Qeg7 Rf4 Ne2 Rf3 Rg1 Rf4 Nd4 Rf3 Kh1 h2 Kg2 h1N Kh2 Rf4 Nf3 h3 Qff6 Re1 Qff8 f1Q Qg2 Re3 Nh4 Qf2 Ra1 Ref3 Ra3 Qf6 Re3 Qg6 Re6 Qf5 Rh6 Nb8 d7 Ng3 d8Q N8d7 Qdf6 Nf1+ Kh1 h2 N8g6 Q2c2 Qf2 Ng3+ Kg2 Qd2 Re1 Qe2 Kh3 h1Q+ Qh2 Qf2 Nh8 Qhf1+ Qg2 Nh1+ Kh2 Q1e2 Rf1 Qee1 Rg1
1rB3B1/3Qr1r1/nk4P1/1N1bN3/B3Qr1n/p1B1b1rR/q5R1/1B1KnBr1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 fxe5 cxd4 e4 h5 c4 f5 b4 d5 g4 Kd7 e6+ Kc6 g6 a5 g7 d3 c5 h4 e7 d2+ Ke2 d4 g5 d3+ Kf2 f4 e5 a3 g6 h3 e6 a4 Nc3 f3 Rb1 h2 Qc2 d1R Be2 d2 Bc4 a2 Rb2 a1N Nb5 a3 Bf1 Rh3 Qe4+ Qd5 e8B+ Kb7 e7 Na6 c6+ Kb6 c7 Nc2 Bc6 Ne1 e8B Qa2 Bd5 Bb7 c8B Ne7 g8B Rb8 Bdc4 Bg7 Bcd3 Bh6 Bb1 Rg3 Rc2 Bd5 Bb2 Nf5 Bc3 Nh4 Rb2 Bg7 Ke3 f2+ Ke2 Bf8 Nf3 Bh6 Ne5 Rc1 Bc6 d1R Be8 Rdd3 Rd2 Rc2 Kd1 Rde3 Nc7 Rb2 b5 Ka7 Nf7 Nhg2 Qc4 Rb4 Bfd3 f1R Qc6 Rf5 Bf1 Re7 Ne5 Rff7 Qd6 Nh4 Rg2 Rb7 b6+ Kb8 Bc6 Rg7 Ba4 Be3 Qe6 Rf4 Qd7 Bc5 Nb5 Ka8 Rhg1 h1R Rh2 Kb8 Rgg2 Rg1 Rh1 Ra7 Rh3 Ra8 Nc7 Be3 b7 Ka7 Nb5+ Kb6 b8Q+ Kc5 Na7 Nef3 Qb3 Ne1 Nb5 Rb8 Qb4+ Kb6 Qe4
Rbq2R2/8/1rR1p3/K1n1bPRR/nBb1Nb2/2Q1bN2/1r1BB1k1/2B1b2r b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kd7 h4 Kd6 d4 g5 Kd2 a5 Kc3 c5 b4 c4 h5 e3 f5 e6 h6 e2 b6 e1B+ Bd2 g3 b7 a4 b5 g2 Kb4 g4 b6 g3 h7 c3 Ra3 c2 Be2 c1B Nc3 Ne7 Qc2 Nd7 b8R Ra6 b7 Nc5 Ra8 Rb6+ Ka5 Bd7 b8R Bb5 Rb7 Nc8 Nf3 g1R Rc7 g2 Rh5 Rh1 Ra1 Rg8 h8R g1B Qb3 a3 Rc6+ Ke7 d6+ Kf6 d7 a2 d5 Bc4 d6 Be3 Rb1 a1B Rb2 Qe8 d8B+ Be7 d7 Rg2 Bc7 Bd6 Rg5 Bh2 Bd6 Qg8 Bf8 Bb8 Rhh5 Bef4 Nd4 Ke5 d8B Be3 Ne4 Kf4 Nf3 Rgh2 Rb1 Bae5 Ng3 Rb7 Bc3 B3d4 Bd1 Bbd6 Nf1 Nb6 Rg6 Nba4 Bg5+ Kg4 Qb4 Ne4 Ng3 Rf2 Rb3 Rb2 Be2 Rb8 Bfh6 Nec5 Qa3 Qf8 Rb5 Qh8 Bb4 Bg1 Rb7 Qc8 Rf7 Rb6 Qc3 Bb8 Rf8 Bcd2 Nh4+ Kh3 Nf3+ Kg2 Bf4 Bef2 Rg4 Bde1 Bc1 Bd2 Be3 Bfe1 Rgg5 Bgf2 Bd4 Bdf4 Bde3 Bg1 Bed2 Bge3 Ne4+
3RB1bK/5q2/1rN1nR2/n3R2k/RNN1RnQb/1p3b2/2N1Pr2/1b3nBn b - - 0 1 illegal: No possible last move
1N1NN2k/1Q2B1b1/6N1/r1bPN1BK/1q1nBR2/1p2Rn2/Bbr4b/3r1b1r b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 f4 b5 h4 e5 d4 g5 a4 Kg7 h5 c5 d6 e4 d7 c4 a5 e3 a6 c3 a7 g3 Kf3 e2 Kg4 e1R Na3 g2 Qb3 c2 Nf3 g1B Rh3 Ba6 Ne5 Ne7 Bc4 Ng6 Re3 Qb6 d8N Re2 h6+ Kh7 f6 Bg7 f5 Bh2 f7 Nc6 f8B Nh4 f6 Nf3 Kh5 g4 f7 g3 Bc5 g2 Be7 g1B Qb1 Qb8 Ba2 b3 Nac4 b4 Nd6 b2 Ne8 b3 f8N+ Kg8 Nfd7 Qb4 Nb8 Bb5 Bd2 c1B Qe4 b1R Qd5+ Kh7 Qd7 Kg8 Qb7 Bb2 Bc1 Bf2 Bd2 Rh1 Rf1 Bfg1 Bc1 Rc2 Rf2 Bf1 Bd2 Ne1 Rf4 Kh7 Bc1 Rg8 Bd2 Kh8 h7 Nf3 Na6 Rc8 a8B Rc1 Nb8 Rd1 Be1 Rf8 B1h4 Rf5+ Bhg5 Rc7 Ned7 Rc5 Ne5 Ra5 Qa6 Na7 Be4 Nb5 d5 Nbd4 Qb7 Rc2 Bh4 Ne2 Rd3 Bc5 Bhg5 Ned4 Re3 Bf8 Nd6 Kg7 h8N Kg8 Ne8 Bg7 Nhg6 Kh7 Nh4+ Kh8 Nhg6+
5QBR/2kNK3/rqB1N1Nb/P1R2q2/B1q1pq2/4BBq1/3nr1b1/N2n2q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 e5 Kd3 d5 f4 Kd7 a4 h5 g4 b5 c4 b3 f6 b2 f7 h4 f5 b4 f6 h3 c5 b3 c6+ Kc7 a5 h2 g6 Nd7 g7 Bb7 g5 Ne7 g8B Ra6 g6 Qb8 g7 Nf5 Nf3 Ne3 Na3 b1Q+ Nc2 b2 Nh4 Nb6 Bg2 Nbc4 Qf3 Nd2 Ng6 Nd1 Qf2 Rh4 Bf3 Re4 Ra3 Qa2 Rc3 b1Q Rc5 Qb6 Na1 Re2 Bh7 Qa4 g8B Bh6 f8N Qc8 f7 Qf5+ Be4 Ba8 Nd7 Qab4 f8N Bb7 Rf1 h1Q Qf4 Qh2 Rh1 Qh4 Qf1 Qhf4 Ne6+ Kd6 c7 Qa3+ Kc2 Qag3 c8B Bc6 Ndf8 Ba8 Bd7 Bb7 Bc6 Ba8 Ng7 Kc7 Nd7 Bb7 Bf7 Ba8 Bhg8 Bb7 Be8 Ba8 Ba3 d3+ Kc1 Nb3+ Kb1 Nf2 Bef7 d2 Ka2 d1Q+ Bb2 d4 Ka3 d3 Rc3 d2 Bc1 Bg5 Rh8 Qf6 Bcd5+ Qfc6 Bfe6 Qfe3 B6f5 Qc2 Ne6+ Kc8 Bh1 d1Q Bfe4 Qb1 Bc2 Bh6 Bde4 Qed4 Be3 Nd2 Ba4 Qe1 Beg2 Nd1 Qf8+ Kb7 Rc2 Qg1 Rc4 Qf5 Bd5 Qd8 Kb4 Qdf4 Bdg2 Qce4 Kc5 Kc8 Rc1 Bc6 Kd6 Kb7 Nh4 Qb6 Rc5 Qc4 Ke7 Bd5 Be4 Bc6 Ng6 Bd5 Bec2 Bf3 Bb5 e4 Bg2 Nf2 Bca4 Nd1 Bh3 Bh1 Bg4 Bg2 Bf3 Re1 Nd4 Re2 Bc6+ Kc7 Ne6+
3Bb3/b3RB2/QN4nP/1N1Nb3/4bpNN/2r2BnR/1rk1bB1K/rqr5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kg2 Kf6 e4 Ke5 h4 f5 b4 a5 c4 d5 c5 g5 h6 d3 h7 Kd4 h5 g4 h6 g3 c6 d2 c7 f3+ Kh3 a4 e5 g2 b6 f2 b7 f4+ e6 a3 b5 a2 b6 Nd7 b8B Ne7 b7 Bg7 Kh2 Ng6 e7 Nf6 e8B Ne4 Na3 Kc3 Nf3 d4 Ne5 d3 Ng4 Bd7 c8N Ng3 Qe2 d1R Bc7 d2 b8N Be5 Nc6 Rb8 Bf7 Be8 Nb6 Qd3 Nb5+ Kc2 Ne7 Rb7 Ba3 Rc1 Bc5 Qb3 Be3 Qb1 Bd8 Rg8 h8N g1B+ Kg2 Rc7 Ned5 Rc3 Rh3 Rf8 Qc4 d1B Be2 Rg8 Bf3 Be2 Qc6 Bd3 Qa8 Be4 Qa6 Rg7 Bg8 Rb7 Bf7 Ne2 Kh1 f1B Bd4 Bf2 Kh2 Ng3 Bc5 Be2 Be3 Nf8 Ng6 Rb8 Nh4 Ng6 Bd2 Bfd4 Be1 Be3 Bf2 B3d4 Na4 Ba7 Nab6 Qb2 Rb1 a1R Nd7 Qa2 Rb4 Qb1 N7b6 Rbc8 Ra4 Rb3 Rd4 Rcc3 Rc4 Rb4 Rc7 Rb2 Re7
r1QR4/Rq1b1kRK/bq1p3b/P2rn2R/3b3B/N1N3B1/4B1n1/3R1bbB b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 b5 Kd3 g5 Ke4 e5 h4 b3 a4 g4 c4 g3 f4 d6 c5 d3 f6 d2 f5 b2 h6 g2 c6 b4 f7+ Ke7 c7 b3 h7 Nh6 h5 Be6 c8B Ra5 Na3 b1B+ Qc2 d1Q Be2 b2 Bf4 Kf6 Bb7 Qb6 Bg3 Ng4 h6 Rd5 a5 Ne3 Rh5 Rg8 h8R Nc6 h7 Bh6 f8B Bd7 Be7+ Kf7 f6 Ra8 Rd8 Ba2 h8R b1B Rhg8 Bc4 Rgg5 Ba6 Rg6 Qd2 Rg4 Ba2 Rd1 B2c4 Qc1 Qdb2 Rg7+ Ke6 f7 Q2b3 Nh3 g1B f8R Ng2 Rff7 Bd4 Nf2 Bcb5 Bf3 Bf1 Be2 Q3b4 Beh4 Q4b5 Kf3 e4+ Kg4 e3 Ne4 Qb2 Nc3 Q2b3 Bc4 e2 Qc2 e1B Be2 Bef2 Qc1 Bg1 Qc2 Bf4 Qc1 Bfe5 Kg5 Bf4+ Kg6 Ne5+ Kh7 Bh6 Bc6 Bdc8 Ra7 Bd7 Bcb5 Qb7 Bbd3 Q3b6 Be4 Nf4 Bh1 Ng2 Ne4 Bde3 Qc8 Bd4 Rg6+ Kf7 Nc3 Bgf2 Rgg5 Bg1 Rg7+
qNrB3b/3N1r1b/2P1pBR1/1B2b2k/Rb1BR1n1/1Q1b2b1/1KnR4/1R4q1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 d5 f4 g5 b4 a5 c4 a4 Kc2 d3+ Kb2 g3 b6 g4 h5 d2 c5 d4 h6 d3 f6 Kg6 c6 e6 h7 g2 f5+ Kg5 b7 g3 f7 Qb6 b5 Nh6 f6 Qc5 b6 Ng4 Rh4 Ra7 Qb3 Qa5 Nc3 Na6 b8B Nb4 b7 Nc2 Nb5 Bb4 f8R Qd8 f7 a3+ Ka2 Rg8 Bb2 d1Q h8B d2 Bhd4 Qc1 Bbc3 d1B Bc7 Rh8 b8R Ba6 Rb7 Qa8 Rd8 Re8 Rd6 Rc8 f8R Qe3 Kb1 a2+ Kb2 Kg6 Nf3 g1B Re8 g2 Bd8 Bf2 Nc7 g1B Bb5 Bh2 Re7 Bfg3 Ne5+ Kg5 Nd7 Qg1 Rf7+ Kg6 Rf6+ Kg5 Rb6 Bf3 Re1 Be4 Rd5+ Bf5 Re4 Be5 Rb7 Bhg3 Rb6 Bh7 Rg6+ Kf5 Rd6 Bh8 B4f6 Rb7 Rd2 a1B+ Ka2 Ra7 Bcd4 Rb7 Bf1 Bd3+ Na6 Bac3 Kb1 Ra7 Nab8 Bb2 Ra6 B2c3 Ra4 Rac7 Rh1 Bb2 Bb6 Bbe5 Bd4 Ra7 Kb2 Rb7 Nc5 Rf7 Ncd7 Be2 Bde7 Qf2 Rh2 Bb5 Rd1 Qg1 Rhd2 Bc4 Bd8 Bb5 Bfe7 Bc4 Rb1 Bb5 Rf6+ Kg5 Rg6+ Kh5 Bf6 Ba6 Bc4 Bb5 Bd5 Bf1 Bc4 Bd3 Bb5
br4Bq/r2Bp2r/1b1R1b2/1bBBn2b/R1B5/3R2kN/1K1R2P1/Q1nr1N2 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Kd2 Kf7 c4 Kg6 Kc2 Kf5 f4 b5 a4 d5 g6 h5 g7 h4 a5 b3+ Kc3 b2 c6 b4+ Kc2 e3 c5 e2 a6 Kg4 f5 d4 f6 h3 f7 h2 a7 b3+ Kd2 d3 Kc3 d2 c7 Nd7 c6 Bb7 c8R Nh6 g8B Bg7+ Kc4 Nf5 f8R Ne5+ Kc3 Rh7 c7 Ng3 Rf3 e1B Nh3 Bf2 Na3 b1B Nc2 b2 Bfc4 Bb6 Ra4 Bf6 Rd3+ Ne2+ Kb3 Qf8 Ne3+ Kg3 Rcd8 Bf3 Rg1 h1R c8B Bd5 Qf1 d1B+ Ka3 Ba2 Rd6 b1R Bd7 Bc6 Bd2 Nc1 Bb4 Bh5 Bc5 Bb5 Rd2 Ra1 Kb2 Rb8 a8B Qg7 R2d3 Qh8 Bad5 Bb1 Rd2 Be4 Qd1 Bef3 Re1 Be4 Ree2 Rf1 Rd3 Ra3 Red2 Rg1 Qb3 Rd1 Qa2 Bef3 Qa1 Be4 Rb4 Ra7 Ra4 Bef3 B5e6 Bfc6 Bed5 Ba8 Nf1+
Rrrk4/3brNnK/Nn1Rn3/bn3N2/4B3/1P3q1p/1N1b2rQ/1RR2NB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 g4 f5+ Ke5 f3 d4 f4 e4 c4 g5 h3 d6 h4 d5 a4 b3 a3 g6 c3 b6 h2 g7 c2 b7 f2 Bd3 f1N Ne2 f3 Nd2 f2 Bb2 c1B Rb1 a2 Qc2 a1N Nc4 h3 Ng3 Nd2 Bd4 f1R Nb2 Ne7 g8N Bd7 Nh6 Na6 b8N Nf5 Bg1 Nc5 Na6 Rf2 Nf1 Ng7 Nf5 Nce6 Qc7 Qb8 Kf6 Rg2 e5 Nc4 Be4 Nb6 Qc2 Bg5+ Kg6 Qb7 Qd2 Rg8 Kh7 Rc8 Qc2 Bd2 Qc7 Nc5 e6 Nc2 e7 Nd4 Qb8 Nce6 Qc7 Kf7 e8R Nb5 Qc2 Be7 Qc7 Bd8 Qb8 Bc6 d7 Bc7 d8R Bd7 d6 Rf8 Be3 Qd5 Rg1 h1R Rc1 Rhh2 Rh1 Re2 Bg1 Rhg2 Rb1 Na4 Rc1 Bca5 Qc7 Nb6 Qb8 Bc6 d7 Qd3 Qh2 Qf3 Rd1 Rb8 Rc8 Kf6 d8N Bd7 Nf7 Re3 Red8 Re8 Rc5 Rc3 Rb1 Re7 Rd5 Rcc8 Rd6 Re8 Nb4 Rc3 Na6 Rb7 Ra8 Rbb8 N1g3 Rc4 Bf2 Rcc8 N5h6 Ke7 Rhc1 Rc6 Nf1 Rcc8 Ng5 Kd8 Nf5 Re7 Be3 Rc3 Bg1 Rcc8 Nf7+
R1K4n/5BN1/3NQbb1/1nP4R/1R1p2n1/1kN1rrN1/bbqB1r2/3Rn2R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 a5 b4 d3 c4 d2 g4 a4 f4 d4 b6 h3 b5 h4 f6 a3 g5 a2 f5 h2 b7 h3 b6 Nc6+ Ke4 e5 b8R Qc7 Kd5 e4 b7 e3 Qe2 d1B Bd2 Bg7 Nc3 Ra3 Ra8 Bb3 b8R Na7 Rd1 a1B Rb4 Nh6 Qg4 Rf8 Nge2 Nb5 Ng3 e2 g6+ Kg8 Qe4 e1N Qe6+ Nf7 Bg2 Bh8 g7 Ba2 Bf3 Bb2 Bh5 Bd7 Bg6 Rb3 c5 Be8 Rc4 Qb8 Nb1 Rf3 Nc3 Qa7 Bh5 Qa4 Bg6 Qc2 Bh5 Kh7 g8N Bg7 Nh6 Nh8 f7 Bf6 Bg6+ Kg7 Bh5 Rg8 f8R Bg6 Rfd8 Rf8 Kc6 Re8 Kb7 Kf8 Rf1 h1R Rd5 Rh2 Nf7 Rhf2 Nd6 h2 Rg1 Kg7 Rh1 Re7+ Kc8 Kf8 Qd7 Ree3 Qc6 Ke7 Qb6 Bh4 f6+ Ke6 f7 Bf6 Rg5 Rf5 f8N+ Ke5 Rf1 h1N Ne6 Rff3 Qc6 Nf2 Ng7 Ng4 Rh1 Rf2 Qd7 Rff3 Nce2 Kd5 Qe6+ Kc6 Nc3 Rf2 Rca4 R5f3 Rc4 Bf5 Bf7 Bd3 Rgh5 Bg6 Na4 Na3 Nde4+ Kb5 Rc3 Kb4 Rc4+ Kb3 Nac3 Nb5 Nd6 Rfe2 R1h3 Rg2 Rh1 Rgf2 Rb4+
rrbkn2b/qR5p/1RRNn2P/2n5/1R1nBBKN/1N5R/7Q/1b1Nrb2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 a5 h4 e5 c4 f5 g4 e3+ Kf3 a4 d4 e2 d5 e1R g5 a3 d6 a2 d7+ Ke7 c6 Ba6 h5 Qa5 d8N Bb7 g6 Bh6 c5 Ra7 g7 Qa6 b6 Nd7 Qe2 Ngf6 g8R Ne8 Qh2 Bg7 h6 Bc8 b7 Nf8 b8R Ne6 c7 Ra8 c6 Qa7 Rb6 Rb8 Nc3 e4+ Kg2 e3 Kh3 f3 Rab1 a1N R1b4 e2 Nd1 f4 Bg2 f2 Nf3 f1B Kg4 Ra8 Nh4 f3 Bf4 f2 Be4 Nc2 Nb7 Ncd4 Na5 Bg2 Rb7 f1B Nb3 Bf6 Rg6 Rf8 Qg1 Bh8 Rh3 Rg8 Qh2 Rf8 Bf5 Be4 Rf6 Bb1 Be4 Bd7 c8N+ Kd8 Nd6 Bc8 Ne3 Rc1 Rg6 e1N Nd1 Nd3 Rf6 Ndc5 c7+ Ke7 Ne3 Re1 Nd1 Bd7 c8R Rb8 Rcc7 Kd8 Rc6 Bc8 Rcb6 Ra8 Nc4 Ng5+ Rbe6 Nd6 Qc2 Bd7 Rb8+ Kc7 R8b5 Rfb8 Rb7+ Kd8 Qh2 Ne8 Rg6 Bc8 Rf6 Nd7 Reb6 Nc5+ Rfe6 Nd7 Red6 Nge6 Rdc6 Ndc5 Nd6
BB1N4/b1N2p2/BrR1nkq1/1Rr1Br2/1n3b2/P1R3B1/Rr5Q/1b2n1bK b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kg2 b5 d4 g5 h4 c5 e4 b3 a3 b4 d6+ Ke6 e5 c4 d7 c3 h6 b2 h7 b3 h5 g4 d5+ Ke7 d6+ Ke6 h6 c2 Ba6 g3 Rh3 f3+ Kh1 f2 Qe2 f1R Qh2 Rd1 Nc3 b1N Ra2 b2 Nd5 Nc6 Bf4 Qb6 d8B c1B d7 Bc5 Bh4 Nb4 d8R Rd2 Nf3 Ne7 Rd6+ Kf5 e6 Nec6 e7 Nd4 e8B Ne6 Be7 Rc2 Ba4 Nd2 Bc6 b1R Ne5 Rb8 Nc7 Rbb2 Ba8 Nf3 Rc6 Ne1 Bd6 Kf6 Rh5 Rg8 h8R Rg5 h7 Rf5 Rg8 Bd7 Rc8 B5e3 Rc3 Bb5 Nc6 Bd3 Nd8 Rb7 Rb3 Rcc5 Rc3 Bb1 Rg5 Qb5 Rh5 Rb6 Rg5 Qd3 Rh5 Bg1 h8B+ Kg6 Bd4 Qc2 Bf2 Kf6 Nb5 Be3 Bb8 Qd3 Bfd6 Bf4 Rg5 Rfe5 Rc6 Qg6 Nc7 Rf5 Be3 Rfd5 Bc1 Bd4 Be3 Rf5 Bf2 g2+ Kg1 Rce5 Ba7 Rb7 Rh5 Rg5 Bb8 Ba7 Rch3 Ra5 Rhc3 Rb6 Bg3 Rgd5 Re5 Rdb5 Re2 Rf5 Re5 Rc5 Rd5 Rc4 Rb5 Rcc5 Qh6 Rc4 Kh2 g1B+ Kh1 Rcc5 Qh8+ Ng7 Qh2 Ne6 Be5+
n1n1b2r/2rP2RB/2k3Bn/rN3nKb/BQ1Bp1B1/2b5/rN5R/4BQ1q b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 e5 f4 h5 g4 b5 a4 c5 d4 b3 g6 b2 g7 b4 a5 b3 d6 c4 d5 c3 f5 c2 g5 h4 g6 h3 f6 h2 f7 Rh7 a6 Nh6 g8B Qh4 a7 Bg7 f8Q Nc6 Be2 Qh3+ Nf3 Ne7 Bf7 Rh8 Nc3 b1B Qf1 b2 Bd2 c1R Na4 Rc7 Be1 Bc2 Rg1 h1N Ra2 b1N Nb2 Ng3 Nd4 Nc3 Nb5 Qh1 Bd1 Bd3 Ba4 Be2 Rg2 Bf6 g7 Bh5 g8B Bb7 Bg6 Nc8 B8h7 Bc6 Qc4 Bg7 Qff1 Bf6 Qb4 Ngf5+ Kd2 e3+ Kd3 Rb8 a8B e2 Bb7 e4+ Kd2 Ng7 Ke3 Ngf5+ Kf4 Ra8 Rg3 Be5+ Kg5 Ra5 Rg1 Nd1 Rg4 Nde3 Rg1 Nc4 Rg3 Kd8 d7 Bc3 Rg2 N4b6 Rh2 Na7 Bc8 Na8 Ra3 Be5 Rg3 Bc3 Qd4 Ke7 d6+ Ke6 Qb4 Kd5 d8B Be8 Be6+ Kc6 d7 Nc8 Rgg2 Nfd6 Bf6 Ndf5 Bd2 e1R Bd4 Ra1 Be1 Ra2 Rg3 Ng7 Bg4 Ngf5 Rf3 Ne3 Rf7 Nef5 Rg7
R1RK2B1/rk1b4/q2B4/1n2nN1b/BB6/2nnB1NQ/bq1rpPR1/1R4b1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 a5 g4 h5 d4 e5+ Kg6 e3 Kf7 a4 b4 a3 d6+ Kb7 b6 e2 d7 e1N g5 a2 d5 c4 d6 e4 b5 c3 g6 c2 g7 h3 Qf3 h4 Bh6 c1Q Ne2 h2 Nd2 h3 Nb3 Ra7 Qg2 Ne7 g8B Nbc6 Qg3 e3 Nbd4 Ne5+ Kf6 N1d3 Rg1 h1B Rb1 a1N Nf5 h2 Rg2 Qb2 Qh3 Nb3 Neg3 Nd4 Be2 Rh7 Bd1 e2 Be3 Qc7 d8B Qc6 Bdb3 Bd7 Ba4 Bh6 Bc7 Bf4 Bd8 Be6 d7 Ba2+ Be6 Qc4 Bg8 Rh8 Bc7 Qc6+ Bd6 Nd5+ Kg7 Qc4 Kf8 Nc3 Ke8 Rh7 d8R Rd7 Rc8 Qc6 Rgg1 Bf3 Bb4 h1B Rg2 Qc4 Ra8 Bc6 Rc8 Rd5+ Ke7 Bd7 Kd8 Qc6 Nf1 Bh2 N1g3 Qg6 Ra8 Bg1 Be7 Nc1 Bb4 Qh6 Rh2 Bf3 Rg2 Bh5 Rc8 Ra5 Rc5 Ka8 b7+ Ka7 b8R Ra6 Ra8+ Kb7 Rcc8 Ra7 Bb3 Qa6 b6 Ndb5 Ba4 Rd2 Rcb8+ Kc6 Rc8+ Rc7 b7 Ncd3 Bf4 Kb6 b8B Ra7 Be3+ Kb7 B8d6
bRr1R3/NnQKBRr1/n1NR2B1/6b1/n3BB1P/1B3nq1/1p1bb3/1q5k b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 g5 a4 f5+ Kd4 c5+ Kc4 Ke5 Kb5 Ke4 d4 c4 h4 f3 d6 f4 h6 b3 a5 b2 a6 f2 h7 c3 a7 c2 d7 f3 e3 g4 d5 g3 d6 g2 Be2 f1Q Bd2 c1B Na3 b1N Bc4 f2 Ne2 Kf3 e4 g1N e5 Kg2 e6 Na6 e7 Nf3 e8B Ne7 Qc2 Bh6 Nd4 Nf5 Bg6 Rg8 h8R Qc7 d8B Rg7 d7 Qg3 Be7 Bg5 Bf4 Bd2 d8R Nc3+ Kb6 Qg1 Bb3 f1B Rb1 Be2 Rhe8 Nd6 Nb5 Qc1 Rb2 Qb1 Nc6 Bd7 Rd1 Rc8 a8B Bh3 Rf1 Na4+ Ka7 b6 Qc1 Nb7 Rd6 Be6 Qc5 Bd5 Qc3 Nd8 Rf2+ Kh1 Qe5 Ne6 Kb7 Be4 Na7 b5 Qc5 b4 Qa5 Nc3 Qc7 Nd8+ Kb6 Nb7 Nd4 Bc2 Kc6 Na4 Kd7 Bcd3 Ndc6 Be4 Be3 Ne1 Rf7 Nf3 Bf4 Bd5 Rc2 Be4 Rc5 Bd5 Rb5 Be4 Ba2 b3 Rb4 b2 Bb3 Na5 Rb8 Nb7 Bd1 Bd5 Bb3 Nd8 Nd4 Be4 Bc6 Bd5 Bb5 Ba8 Ndc6 Nb7 Bbd3 Qf1 Bdf5 Qb1 Be4
5kR1/2QQN2n/2n2bbB/1KR2nn1/3bPRpq/rbqR3B/R3R3/r3N3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 Kc3 g5 Kc4 c5 e4 g3 h4 g2 b4 f3 b6 f2 d6 g4 h5 f4 d7+ Kf7 h6 a4 h7 f3 b7 a3 d5 a2 d6 Ra3 b5 Kg7 b6 Qh4 d8Q Be7 d7 Nc6 b8R Bf6 Kb5 c4 b7 c3 Rh2 c2 Qc7 Kf8 Nc3 Bd4 Bd2 c1Q Nd5 Nf6 Ne7 Qc3 Be3 Rg8 h8R Nh7 Ra8 Bf6 Rc1 a1B b8R Bb2 Rb7 Ra1 Nh3 g1N Nf4 Nh3 Ng2 N3g5 Ne1 Bd4 Bg2 f1N Bh3 f2 Ra2 Ng3 Bf4 f1B+ Re2 Nf5 d8R+ Kf7 Rd6 Kf8 Be3 Bf6 Rd3 Be6 Qa4 Bb3 Qd4 Bf7 Qdd7 Bg6 Bf4 Ba3 Rcc2 Bc5 Bc1 Bcd4 Be3 Qa3 Rc5 Qc3 Bc1 Kg7 Bd2 Ra8 Rg8+ Kf7 Rg7+ Kf8 Rb6 Ra3 Be3 Ne6 Bh6 Neg5 Ra6 Nb8 Rd6 Nc6 Rf3 Bg2 Rf4 Bf3 Rg2 Bd1 Rge2 Bb3 Rdd5 Bg1 Rd3 Bgd4 Rg8+
1BnBb2K/kQ1RRb1N/bq4r1/1B4qR/2qpnNP1/2r5/7B/2b1q1RR b - - 0 1 illegal: No possible last move
3q2B1/2q5/bk1N4/bB1KRQBp/1Q1B1RB1/1PqnN3/r2Bq2r/1n4rr b - - 0 1 illegal: No possible last move
r1Nb2nk/1B5b/3pNqN1/2Q1r3/R2P4/1NBqRb1K/1N1nRb2/2nnR3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 h5 e4 a5 c4 f5 d4 Kf7 g4 Kg7 Kg2 a4 g5 f3+ Kh3 a3 b6 f2 e5 a2 c6 d6 c5 f4+ e6 f3 g6 Qf6 b7 Bd7 c7 Nc6 b8R Be7 c8N Ne5 c6 Nd3 c7 Bd8 Bg2 f1N Qc2 f2 Bb2 Nc1 Qc5 Nd2 Nf3 f1Q Bc3 Qd3 Rb2 Rh7 Rc2 Kh8 Nb6 Re7 c8N Bc6 Re1 Be4 Nc4 Re8 Kh2 h3 e7 h4 Ng5 Bf5 Ne6 Be4 Kh1 h2 Nb2 Bf5 Bf3 Be4 Kg2 h1N Re3 h3+ Kh2 Bf5 Bb7 Nf2 Kg3 h2 g7+ Kh7 Kg2 Nd1 Kg3 Be4 Kh3 Bf3 Re1 h1B Re3 Ndb3 Rh2 Nd2 Rhe2 Be4 Re1 Bhf3 R1e2 Nh6 g8N Kh8 Re1 Bh7 R1e2 Rf8 e8R Ra5 Nge7 Ng8 Na3 Ra8 Nac4 Ra5 Rb1 a1B Re1 Ra8 Na5 Rf7 Nb3 Rg7 R1e2 Rg5 Nc4 Bb2 Ra1 Re5 Ra4 Ba3 Nb2 Bb4 Re1 Qfg6 Rf8 Bd5 Rg1 Nc4 Rf2 Qf6 Re2 Bf3 Be1 Bd2 Re4 Bh6 Bc3 Be3 Rge1 Bf2 R4e3 Nd2 Ng6+
1nn4k/N1n2Kp1/bR1q1B1P/B1NRb1R1/B2r3r/2Rq4/n5R1/2QBb2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 d4 f5 b4 Kf7 e4 c5 h4 c4 e5 a4 d6 a3 b6 f3 Ke3 f4+ Ke4 f2 Kd5 a2 b5 g3 b7 f3 b6 c3 e6+ Kf6 e7 g2 e8B c2 h5 Nh6 d7 Nf5 h6 Nd6 Bb2 c1N Na3 Nc6 b8R Rg8 b7 Qe7 d8R Ra4 Nh3 g1N Nf4 Nh3 Rh2 Ng5 Rg2 Ne6 Be2 f1B Nd3 f2 Nb5 Qc7 Bd7 Kf7 Na7 Rh8 Nc5 Kg8 Rb1 a1B Bh5 Na2 Rc1 Qb6 Rc3 Ba6 Qc1 f1Q Bd1 Qd3 Ra8 Qb4 b8R Bcb7 Rg5 Nc8 Rg2 Na5+ Ke5 Nc7 d5 Qa3 d6 Rh4 B7a4 Bd5 Rg5 Bh1 d7 Qd6+ Kf5 Nc6 Rb6 Nb8 Rg2 Kh7 Kg5 Rg8 Kf5 Kh8 Rg5 Qe7 Kg6 Qd6+ Kf7 Qd3 Rcb3 Be7 Bf6 Be5 Rc3 B7d6 Nc6 Bg3 Na7 Be1 Rg2 Be5 Rg5 Nc6 Rab8 Qd6 Rb2 Qd3 R8b6 Nb8 Rbg2 Qb4 Rf8 Qbd4 d8B Qd6 Re8 Bd4 Re4 Be5 Rd4 Re8 Rd5 Re6 Bfe7 Rg6 Bf6 Rd4 Rh5 Rgg4 Rg5 Rh4 Rb7 Nb5 Ba5 Nc7 Rb6
2B3N1/3KQ2p/1bQ3Q1/R1b1Qrqn/2Q2q2/bRN2bk1/3BQ1qP/1n4bn b - - 0 1 illegal: Other
2Kbn1r1/RnQ1R1b1/2bN3q/1nR2k2/Bn1p4/3Nnq2/3P1nBB/R1B2R2 b - - 0 1 illegal: No possible last move
1qRRNQ1q/2n1bKRR/2qqBn2/2n4p/2n3r1/1BNq2R1/5B1P/1rB1k3 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Kf2 Bb7 Ke1 Be4 Kd2 exf4 Ke1 f3 Na3 f4 Nb1 Bf5 gxf5 Be7 Na3 Bd6 Nb1 Bf8 Kf2 Ke7 e4 Kf6 c4 Kg5 b4 Kg4 b6 g5 b7 a5 c5 d5 f6 h5 b5 d3 c6 d2 c7 d4 c8R d3 f7 a4 b6 a3 e5 a2 e6 Ra4 e7 Na6 b8R Nf6 e8B Be7 f8R Nc7 Qe1 d1Q b7 d2 Bb2 Qb3 Bc4 d1Q Bef7 Q1d6 Ne2 Q8d7 Bfd5 Q7c6 Na3 Rh7 Rd1 a1N Rf7 Rb4 Bd4 Rg7 Rd3 Kh3 Qc3 g4 Be6 Qb2 Ba2 Nb3 Nc4 Nc5 Qa3 Qa1 Rc1 Rb1 Bb3 Rg5 Nc3 Qb2+ Ke1 Kg2 Rh7 g3 Bf2 Rg4 Kd1 Qa1 Kd2 Qb2+ Rc2 Kf1 Rg8 g2 Rgg7 g1Q Rd8 Qg2 b8B Qg3 Ba7 Qa1 Be3 f2 Bb6 Qdd5 Nd6 f3 Ne8 Qdd6 Bh6 Qb2 Ke3 Ke1 Ba7 f1Q Bf4 Nfd5+ Kd4 f2 Kc4 Nf6 Bb6 Nfe4 Bc1 Qfh3 Rf3 f1N Qa8 Qgf4 Rg3 Qf8 Qa3 Qh8 Ba7 Qf4 Qb4 Nfd2+ Kd4 Qh6 Ke5 Nf6 Bb6 Qf1 Qf4 Qd3 Ba7 Nfe4 Qf8 Nc4+ Kf5 Qhd2 Bb6 Qdd6 Ba7 Q2d3 Bb6 Bg5 Kg6 Be7+ Kf7 Nf6 Rc8 Qa3 Rd2 Qb4 Ba7 Qb8 Bb6 Qf1 Rd5 Qd3 Rd4 Qf4 Rdd8 Qfd6 Ba7 Nce4 Bae3 Nc5 Bf2+
4B1r1/Q1r1qq1Q/2Bnqn1B/pN2nq2/4nBk1/P2R4/5r2/KRNbB1B1 b - - 0 1 legal: proof: g4 b5 e4 g5 h4 f5 c4 bxc4 Be2 d5 Bf1 Bh6 gxf5 dxe4 Bd3 g4 Bf1 Bg5 hxg5 Qd3 Be2 Qd6 Bf1 Qd8 b4 Kf7 d4 a5 Kd2 e5 Kc3 c5 Kb2 h5 f4 h4 b5 h3 d5 g3 b6 h2 g6+ Kf6 d6 g2 b7 e3 d7 c3+ Kb3 e2 g7 e1N a3 c2 Kb2 c4 Ne2 g1Q Ra2 e4 Ra1 c3+ Ka2 e3 Bg2 Ne7 g8B Nf3 Bf7 Rg8 Qd3 Qf2 Rd1 h1N Rd2 Qe8 d8B Nd7 b8Q Ng3 Qa7 Bb7 Bc7 Nc8 Bb6 Qe7 Qe4 Rb8 Be8 Nd6 Rd3 Qf1 Bd2 c1Q Bc5 c2 Nbc3 Bc6 Rb1 Ba4 Ka1 Rb2 Nb5 Qf2 Bb6 Qcf1 Bc5 c1R Bb6 Rc4 Nc1 e2 Bb4 Q2e1 Bg1 Qef2 Bd2 e1Q Be3 Kg7 f6+ Kh6 f7 Kh5 f5 Rc7 f6 Bd1 Qh7+ Kg4 Bh1 Rbc2 f8B Qee2 Bd2 Q2e6 f7 Nfe5 Bc6 Nge4 Bfh6 Qff6 Bc3 Q1f5 Bf4 Rf2 f8B Qff7 Be1 Ndf6 B8h6
Q1n1R1N1/1RRq3N/1n1NbRNp/1Bq3r1/k5qB/r6n/RKnrr2P/8 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 c4 a5 Kc2 d5 b4 Kd7 e4 g5 b6 Kc6 b7 h6 b5+ Kb6 f5 d3+ Kb2 g4 f6 a4 f7 Ka5 f8N g3 c5 d4 b6 g2 e5 d2 c6 d3 e6 Nd7 b8R Ne7 b7 Rg8 c7 Nb6 Ra2 Rg5 Nc3 Qd7 Nh3 g1N Nf4 Nh3 Nb5 Kb4 Be2 f1Q Nd6 f2 Nh7 Qg1 Ng6 f1R Qc2 d1R Qc6 d2 Ba6 Qe3 Qg2 Rf7 Rf1 Qc5 Rf6 Rf8 Qd5 Re8 Qg2 Ra7 Ra8 Ka5 b8R Kb4 Rb7 a3+ Ka1 Ka4 Qd5 Nc6 e7 Qg4 Rab8 Be6 c8N Ra8 Rc7 Na7 Rc2 a2 Kb2 a1N Rbb7 Rh1 Qg2 d1Q Bf4 Re1 Bg3 Rd8 e8R Re2 Nce7 Nac8 Ng8 Qdd5 Rd2 Nc2 Bh4 Qdc6 Rd1 Qd7 Ra1+ Kb4 Ra2 Ra7 Bd3 Ra3 Ba6 Ka4 Ra7 Qf2 Qa8 Qc5 Rab7 Qe7 Nb5 Rdd2 Nd6 Qd7 Bb5+
1N1q3Q/1Qn3rN/1B1kB1R1/2b4R/1b2bn1Q/3rQQq1/3pP1qp/n2KQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 c4 Ke7 g4 h5 b4 d5 c5 a5 g6 f5 c6 a4 b6 h4 b7 a3 g5 a2 g7 d3 b5 f3 c7 f4 b6 f2+ Kd2 d4 g6 f3 Nh3 Na6 b8Q Bf5 c8Q Nc7 b7 Rh7 Ng5 h3 Qe1 Kd6 Kd1 d2 Qa7 Nf6 b8Q Be4 g8Q Rg7 Qc4 Nd5 Qcb7 Nf4 Nh7 h2 Nc3 Qg5 Rg1 Qg3 Bh3 f1Q Na4 f2 Nb6 Qfg2 Be6 f1N Nd7 Be7 Qg8 Rd8 Qf7 Bf8 Rb1 a1B Nb8 Bc3 Rb5 Bb4 Rh5 Rd7 Qf6 Bc5 Qd3 Rd8 Qh4 Bb4 Kc2 d1Q+ Kb2 Qg5 Qaa3 Ke7 Qba8 Rf7 g7 Nd2 g8Q Qf3 Qef2 Nb3 Q8a6 Rg7 Qb7 Na1 Qe1 Qe3 Qdb3 d3 Qh8 Qf2 Rg4 Qg2 Be3 Qd2+ Kb1 Qc3 Bb6 d2+ Qc2 Qcf3 Qcd3 Qfg3 Kb2 Rd4 Qf3 Rd6 Qae3 Rd3 Qh3 Qd5 Rg6 Qd8 Qh4+ Kd6 Rhh6 Ke5 Kb1 Bfc5 Rh5+ Kd6 Kb2 Nb3 Kc2 Na1+ Kd1
nb1B4/2r3nb/2BN2R1/1K2R2k/1R2npb1/r1qP1NRN/Q1q2pr1/R5N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 c5 Ke2 f5 Kd3 Kf7 Kc4 Kg6 b4 h5 g4 a5 g5 a4 e5 a3 b6 h3 d3 h2 e6 f3 b7 a2 b5 f4 d6 h4 b6 f2 d7 h3 e7 Nh6 e8N Ra3 Be3 Qc7 d8N Nd7 b8R Nf5 b7 Bd6 Qc1 Rg8 Qb2 Ng7 Bg2 Nb6+ Kb5 c4 Nf7 c3 Nd2 c2 Ndf3 Kh5 g6 c1R N7g5 Na8 Bb6 Qc2 Bd8 Bg4 Rc8 Bc7 b8R Bd6 Rb6 Bb8 Rb1 a1Q Qa2 Qac3 Nd6 Re1 Rb2 Re7 Rc5 Rc7 Re5 Rf8 Ne2 Rg8 Ra1 h1N Neg1 h2 Rb4 Ng3 Ra6 h1B N5h3+ N7f5 g7 Ne4 Bg5 Rh8 g8R Ng7 Rc6 Rh6 Rb6 Rg6 Bd8+ Rg5 Ne1 Nc5 Bd5 Be4 Nef3 Bh7 Bc6 Ne4 Rf8 Bc8 Rf6 Bcf5 Rg6 Rg2 Rg3 Rd7 Re6 Rc7 Reg6 Bg4 Rb7 Rc8 Re7 Rc7 Re5+
N5qr/2n3bB/n7/1N2k2r/PBNpb1K1/p2rN3/1N1bQNRR/1n2q2Q b - - 0 1 illegal: No proof kernel
2q2q1B/q3b1n1/b1QrB3/3p4/1R1b1pNr/PB1N2NN/7R/B1n1KNkn b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 e4 Ke7 h4 Ke6 c4 d5 h6 g5 h5 b5 a3 f5 h7 b3 h6 g4 c5 b2 c6 b4 c7 b3 Be2 g3 Bg4 d3 Kd2 g2 Rh2 Nd7 Qc2 Ngf6 Nh3 g1B Bd1 f4 Ke1 Nc5 Nd2 b1Q Bb2 Bd4 Nf1 Qc1 Rb1 Ne8 Ba1 Ba6 c8B+ Qd7 Qc4 b2 Qc2 Nb3 Qc6+ Kf7 e6+ Kf6 e5+ Kf5 e7 Ke4 e6 Ng7 e8N Qa7 Bd7 Rd8 e7 Qcc5 Be6 Rd6 Bc2 Kf3 Nf6 Nc1 e8N Be7 Bb3 Qc4 Nh5 d2+ Kd1 Qb4 Nef6 Qbb8 Ng4 Qf8 Nhg3 Qc8 Kc2 d1N Kd2 Nf2 Ke1 Nh1 Bc2 Rg8 h8N Qf8 Nf7 Rh8 h7 Qc8 Bb3 Qf8 Nhf2 Qc8 Rh5 Kg2 Rh2+ Kg1 Ng5 Ne2 Rc1 b1Q Nd3 Qc2 Rb1 Qcc5 Rb2 Nc1 Rb1 Rf8 h8B Rf5 N5e4 Rh5 Nef2 Rh6 Ba4 Rh5 Rb4 Rh4 Bb3 Qf8 Qb6 Qcc7 Qc6 Qcc8 Nh3+
2b1nNRQ/5B1B/1qrrb3/n2p1B1n/2PB4/1pb1K1R1/1kr1NR1R/1q4B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 a4 b5 c4 d5 g4 h5 f4 e5 g6+ Kf6 a5 e4 a6 h4 a7 d3+ Ke3 d2 g7 b3 Ne2 b4 Rh2 b2 Nd4 b3 Bh3 Be7 Nc3 b1Q Ne6 Bb4 Nf8 Nc6 Qh1 d1B Ne2 Bc3 Bb2 Rh6 Ra2 Rb8 a8R Na5 Ra6+ Rb6 g5+ Ke7 g6 Kf6 Ra8 Rd6 Rg2 Be6 Rg3 Rc6 Bg4 h3 Rb8 h2 Ba1 Ne7 g8B Nc8 g7 Nd6 Bh7 Ne8 g8B Bc8 Bf7 Qb6+ Nd4 Be6 Bh3 Bg4 Rf2 Ke7 f6+ Kd6 f5 Kc5 Rd8 Kb4 Rb2 Qa6 Ne2 Ka3 Rc2 Bb4 Bd4 Qb6 Bfg8 Rg6 f7 Bc3 f6 Bc8 Rb2 Bge6 Bf5 Rh6 Qg1 h1N Qh2 Rg6 Qh6 Rd6 Qg7 Rc6 Qh8 Rh6 Nd7 Rd6 f8B Rh2 f7 Rh6 Kf4 e3 Be7 Rh2 f8R Rg2 Bf7 Rf2+ Rf3 Ng3 Rg8 Rg2 Rf2 Nh5+ Kf3 Rg6 Nf8 Rh6 Rg3 Rf6 Ng1 e2 Ke3 e1R+ Ne2 Rc1 Rh2 Rh6 Bf6 Rc2 Bc5+ Qb4 Bfd4 Rf6 Ba7 Qb6 Rhg2 Rc6 Nc1 Qb8 Kf3 Rh6 Bf2 Nc7 Bad4 Bed7 Ne6 Rd2 Rdg8 Qb6 Bg1 Ne8 Nf8 Rhd6 Rh2 Be6 Ke3 Rg2 Rd2 Rf2 Rd3 Ra2 Rdd2 Rc2 Rdf2 Kb2 Ne2
Rqq1Q1B1/2nQ1r2/1rP2Qp1/3qBnN1/N4bK1/Q1Q1R3/br1Qp3/1n5k b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 f4 Kf6 h4 d5 c4 a5 b4 e5 h5 a4 b6 g6 b5 g3 Kf3 g2 c5 e4+ Kg3 a3 c6 d3 b7 a2 b6 e3 h6 e2 h7 d2 Rh2 d4 Kf3 d3 Nh3 g1R Nc3 Bd6 Ng5 Be6 Bg2 Rf1+ Kg4 Na6 b8Q Ne7 b7 Qc8 Na4 Nc7 Bd5 Ra6 Qa7 Rb6 b8Q Bf7 Qc2 d1Q Rh3 d2 Re3 Rg8 h8Q+ Rg7 Rb1 a1Q Bb2+ Be5 Bd4 Qb2 Ra1 Bg8 Qh6 Rf7 Qc3 Qdb3 Qbb7 Rb1 Be6 d1N Qab8 Na6 Qd7 Qd5 Qbd6 Nc7 Qda3 Ra6 Ra2 Qbb8 Ra1 Rab6 Ra2 Rg7 Bf7 R1b2 Be6 Bh7 Bg8 Rf7 Qh1 Rg7 Qd2 Qd6 Be6 Qg8 Nc3 Qh8 Qb4 Na6 Qf1 Nc7 Bc4 Qhc8 Ra8 Bg8 Ba2 Bc4 Bb3 Bd3 Na4 Bb1 Bc3 Qd3 Bg8 Qe4 Bd4 Nc3 Qa5 Qd5 Qfc1 Rc2 Qa3 Ba2 Q5b4 Rh7 Qc5 Nb1 Qcc3 Kg7 f6+ Kh6 f7 Rcb2 f5 Bf4 f6 Nf5 f8Q+ Rg7 Kh3 Kh5 f7 Rh7 Qfd8 Rg7 f8Q Rf7 Ne4 Bg5 Qfe8 Bf4 Kg2 Kg4 Qf6 Qa7 Kf2 Qab8 Ng5 Kh4 Be5 Kg4 Nf3 Kh3 Ng5+ Kh2 Bh7 Qd6 Kf3 Kh1 Kg4 Qd5 Bg8
1r3nBQ/BNn1R1b1/p5qB/1q3b2/N2PbN1R/n1Bk1B2/2rp1K2/6Nr b - - 0 1 illegal: No proof kernel
3N1B2/kB3r1p/Bb1q2P1/1n1rBq1b/Nb3q2/3n2B1/N2Q3p/K2Nn1RR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 g4 f5 e4 c5 d4 Kc7 Kd2 Kb7 Kc3 a5 Kb2 c4 b6 a4 b5 h3 d6 a3+ Ka2 f3 d5 f4 g5 h2 e5 f2 e6 f3 e7 c3 e8B c2 d7 Ne7 d6 Ra7 g6 Na6 Ne2 Nc5 Bh6 c1B Nec3 Nc6 Na4 Be3 Nbc3 Nd3 Qd2 Nd4 Nd1 Qf6 d8B Bg4 d7 Qd6 Bf6 Bh5 d8N+ Ka8 Be5 Rf7 b7+ Ka7 Bg2 f1Q b8N f2 Bb7 Qh3 Na6 f1Q Bg3 Qhf5 Nb4 Q1f4 Rc1 Bf2 Ka1 a2 Bec6 Be7 Ba6 Re8 Bg7 Bf8 Rb1 Re5 Bcb7 Rd5 b6+ Kb8 Ba8 Nb5 b7 Ka7 Rc1 Be7 Bf8 Bc5 Ndc3 Be3 Rcg1 Bb6 Nd1 Ne1 Kb2 a1N Na2 Nac2 Kb1 Nb4+ Ka1 Na3 Bd3 Nb5 b8B+ Ka6 Bc7 Ka7 Bf1 Nbd3 Bb7 Qdd7 Be5 Bb4 Ba6 Qd6 Bg2 Rc5 Bc6 Rd5 Bcb7
1RBR1q1r/3Pb3/1K1Bp3/1B1BBk1Q/2B1np1b/nQ2n1qr/N1bq3N/8 b - - 0 1 illegal: No proof kernel
2B2B2/1qpkN2Q/7B/nb1P1rNq/2r1p3/KN1n2Nn/5bb1/1rR1BR1N b - - 0 1 illegal: No possible last move
1B4Nr/Q1b2N2/1Nn2b2/4R2B/1nRNK2b/rbRpN3/p3Pb1R/1q2k2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kf2 Ke7 Ke3 Ke6 c4 Kf5 b4 d5 h4 g5 e6 a5 e7 a3 e8R a2 h5 g3 b5 Kg4 b6 f5 c6 d4+ Kd3 a4 c5 a3 b7 f4 h6 g2 c7 Kg3 c6 Kf2 h7 g4 Qa4 f3 Rh2 g3 Qa7 Nf6 Bf4 Ke1 Re5 Be6 c8R f2 c7 Nc6 b8N Bb3 Nd7 Nd5 Nf6 Be7 Ng8 Ndb4+ Ke4 d3 Nf3+ Kd1 Rb8 g1B c8N g2 Nb6 Bh4 Nd4 Ke1 Rc8 Qg5 Bg3 Qc1 Nd2 Qd1 Rc1 a1B Rc4 a2 Rc3 Qb1 Ndc4 Bb2 Ne3 Ba1 Rh3 Bh2 Bf4 g1B Bg2 f1R Bf3 Bgf2 Bh5 Bh2g3 Rh2 Rh1 Rc7 Ne7 R7c4 Nec6 Rg5 Bb2 Bb8 Bc7 Re5 Bc1 Ng4 Bcg5 Ne3 Bf6 Nh6 Rg8 h8N Rf8 N8f7 Rh8 Qb7 Ra4 Ng8 Ra3 Qa7
4r1n1/1K1bb1Bb/1QrQN2B/R3Q1qN/3pQ3/p2r3b/PRk4b/Qn5Q b - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 b4 g5 bxc5 Bg7 Bh3 Bf8 dxe5 gxf4 g5 Qe7 Be6 Qd8 Bg4 hxg4 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 a5 h4 b5 e4+ Kg6 c4 f5 e6 f3 c6 f4 e5 Kf5 c7 f2 e7 f1R e8Q d6 e6 g3 e7 a4 g6 b4 c5 b3 h5 f3 g7 f2 h6 g2 h7 a3 c6 b2 Nf3 g1B Nc3 b1B Rh5+ Kf6 Bh6 Na6 Nd4 Bg4 c8Q Qd7 c7 Nc5 Qa6 Ne4 c8Q Qb5+ Qc5 Rd8 Nce2 Bd7 Ne6 Bh2 Qb6 Nd2 Ng3 Bd3 Rc1 Nb1 Rc2 Rg1 Qc1 f1B Rb2 Bh3 Rg5 Rg2 Qh1 Rc2 Qh5 Qa5 e8Q Be7 Qh4 Qd2 Q4e4 Rc3 Re5 Qg5 Qcd4 Rdc8 Qed8 R8c6 Nh5+ Kf7 Rf5+ Kg6 Qde5 Rb3 Kd4 d5 Qdc7 Nf6 Qcd6 Re8 h8B Ng8 Qhe1 Nd2 Qa1 Nb1 Qh1 Bc2 Qee4 Rg3 Ke5 d4 Kd5 Rd3 Qde5 Rd6+ Kc5 Rc6+ Kb5 Bd1 Ka6 Bf3 Qd6 Bfg4 Ra5+ Bf5 Ng3 Kf6 Kb7 Bh7 Qeg2 Qe5 Nh5+ Kf5 Qgd5 Rf3 Qdb5 Ke4 Q5c5 Qg5 Qce5+ Kd3 Qe4+ Kc3 Qee5 Nf6 g8Q Rd3 Qg6 Ng8 Qgf5 Bg2 Qfe4 Bh3 Rbb5+ Kd2 B8g7 Kc2 Rb2+
2NR2k1/n1n4n/Nr1B1R2/3Rn3/2p1K2p/4RP2/q1r1Bbb1/rnRQ1NN1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 e5 d4 h5 g4 a5 b4 c5 d6 a4 d7 h3 d5 h2 g5 a3 f3 a2 b6 c4 d6 h4 b5 Rh6 b7 Nf6 b6 Kg8 g6 Nc6 b8N Nd5+ Kd2 e3+ Kc2 e4 b7 e2 g7 e1N+ Kd2 e3+ Ke2 Na7 Nc3 Nd3 Bd2 Nc7 Na6 Ne5 Rc1 a1R b8R Qg5 d8R Bh3 d7 Rb6 Nb1 Bg2 Rbc8 Qg6 Re8 Qc2 d8R Qa2 Re6 Rab8 Rd5 Rb2 Red6 Rc2 Rf6 Rb5 Rcd8 Rb6 R8d7 Bc5 Rd8+ Kh7 g8N Kg7 Ke1 e2 Ne7 Bd4 Nc8 Be3 R8d7+ Kg8 Bb4 Bd4 Nd2 Bc5 Nh3 Be3 Rg1 h1N Bd6 Nf2 Rh1 Bd4 Ng1 Ne4 Rh2 Ng5 Rd8+ Kg7 Rh1 Nh7 Rh2 Bb2 Kf2 e1N Ke3 Bd4+ Ke4 Bf2 Bf8+ Kg8 Be2 Rcb2 Rh1 Nc2 Nf1 Na3 Rh2 Nb1 Bd6+ Kg7 Rh1 Rd2 Rc3 Rc2 Re3 Bh3 Nh2 Rb4 Qd2 Be6 Nh3 Rb6 Rc1 Bd7 Ng1 Bh3 Qd1 Bg2 Rd7+ Kh8 Nf1 Kg8 Rd8+
4n1KB/R2r3n/NPb1r3/6Bq/2N2QB1/br1NNn1p/1Bp2r2/1k2RNr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 Ke6 h2 Kf7 f4 e5 a4 d6 a3 e6 c2 e7 Kb3 e8N a2 b7 f3 Ne2 h3 Nf4 Qg5 d8B Qe5 d7 Ra6 Nd6 Nf6 g8N Ne8 Nc4 Re6 Qd2 Ba3 Nf6 Rh7+ Kg8 Qh5 Be2 f1R Ng4 Rf2 Re1 h1R Nge3 Rg1+ Bg5 Rhe7 d8B Nd7 b8N Bb7 Qd6 Bc6 Nd3 Nf8 Na6 Rd7 Bf6 Nh7 Bh8 Rg3 Qf4 Rg1 Nf1 Rg3 Nc3 Rg1 Rb1 a1R Nd1 Ka2 b4 Rg3 b5 Rg1 Rb3 Rb1 Rb4 Rb3 b6 Kb1 Ra4 Rfg2 Bhb2 f2 Bh8 Rh2 Bg4 Rhg2 Ng3 f1N Nde3 Nd2 Ngf1 Nf3 Bcb2+ Ka2 Nb8 Rd2 Ra7 Rf2 Nc1+ Kb1 Na6 Rdd2 Nd3+ Rd1 Nc1 Rd7 Nd3+
1n3bkN/2p3BB/rP2qR2/rr6/N1Bp1r2/1B1B2rb/K1Q2R1Q/4bn1B b - - 0 1 illegal: No proof kernel
K5B1/B2q4/1bn1bRrR/1n3P1Q/1rb1p1n1/3N1Rpr/R1R3R1/1QrkN3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 f6 Kf7 Ke2 Kg6 Kd3 Kf5 Kc4 Ke4 Kc5 d5 h4 g5 c4 a5 b4 g3 f4 g4 b6 g2 f5 a4 b5 d3 b7 a3 h5 a2 h6 g3 h7 d2 f7 Ke3 b6 d4 Na3 d3 Ne2 g1R Nf4 Nh6 Rh2 Na6+ Kc6 e5 b8R e4 c5 Ng4 b7 Nf6 Rg2 Qd5+ Kb6 Nb4 c6 Ra4 c7 Bd6 f8R Bc5+ Kb5 Qd6 Ra8 Rh1 b8Q Rg8 h8R Rh3 Rh6 Rg6 Qh5 Ng4 Rf6 Qd4 Rb1 a1R Rb3 Kf3 Bb2 d1N Nc2 Rc1 Ne1+ Ke3 Bc3 d2 Bc4 Qd6 Bf7 Be6 c8R Qd7+ Rc6 Bd4 Bg8 Ba7 Nfd3 Bd4 Nf2 Ke2 Bb2 Be3 Bd4 Nc3+ Kb6 d1B Rc7 Kd2 Kb7 Be2 Ra5 Ba6+ Ka8 Bd3 Rc4 Nc6 Ba7 Bc5 Qb4 Bb6 Ra3 Be2 Qb1 Nb5 Rf3 Rb4 Rcc3 B2c4 Nfd3+ Kd1 Rcc2 Ne7 Ra4 Nc6 Raa2
2n1b1nR/Q5bb/1N2NP2/2k4R/3N2BK/r3p1BB/1p1q2Bn/Nr1rN1n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 Kd6 Kf2 e5 g4 b5 d4 h5 g5 c5 g6 b3 g7 b2 f6 c4 a5 e4 f7 b4 a6 c3 a7 h3 Kg3 b3 f5 h2 f6 c2 Bf4+ Kd7 d6 Kc6 d7 c1N d5+ Kb6 d6 e3 Bh3 Rh7 Na3 b1N Nf3 b2 Kh4 Nd2 Nc2 Ne2 Ra5 Nc6 Bg3 Nce7 Qa1 Bb7 Nfe1 Bc6 Qa3 Rh6 Na1 Nc8 Qa4 Nf1 Re5 Qe8 d8N Ng1 Ne6 Qd8 Ng5 Be8 d7 Rh8 Rb5+ Kc6 Rb8+ Kc5 Qa2 Qa5 d8N Qd2 Nc6 Rh6 Nd4 Rg6 Ngf3 Rg5 Qa4 Rd5 Ng5 Rd8 Nc6 Rd3 Nd4 Ra3 Rb3 Rb8 a8B Rb6 Bag2 Rd6 Rb8 Rd7 Ngf3 Rd8 Kg5 h4 Qa7+ Nb6 Bg4 h3 Kh4 Rd5 Ng5 Rd6 Qa6 Nc8 Ra8 Nh6 g8B Bg7 Bh7 Ng8 f8N Nge7 Bd7 Bf7 Rb8 Qd1 Nb5 Na7 Bhe4 Ne2 Nec2 Qd3 Re8 Nac8 Bef3 Bg8 Kg4 Bh7 Qb7 Qc3 Be6 Rd2 Nbd4 Qd3 Rg1 h1R Bf5 h2 Nd7+ Kc4 Nb6+ Kc5 Rh8 Ng8 Qa7 Qc3 Bd5 Rd3 Bgf3 Qa5 Rg2 Rg1 Ba8 h1B Rh2 Bg2 Rh6 Nh2+ Kh4 Rb1 Bh3 Rdd1 Rh5 Qd2 Bfg4 Ng1 Ne1 Bc6 Bb7 Bb5 Bbg2 Be8 Nge6+
NKB5/1B4RP/1rN1BkRN/pQB4b/2Bb1nbp/4r3/rn1N4/n5rq b - - 0 1 illegal: No proof kernel
2b1r2Q/K4Bp1/nn1Nb1r1/1rRN1RpN/R7/2b1qnBn/P2R3N/k1N5 b - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 f5 exf5 h6 b4 axb4 g4 Ra7 g5 hxg5 Bd3 Ra4 Bf1 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 b3 h4 e6 h5 c6 f6 b4 f5 b2 h6 b3 h7 Ra4+ Bc4 Ra6 f7 Ra8 f6 Qa5 Qh5 Qb5 Rh4 Na6 Ne2 Qb4 Nbc3 b1R d3 Be7 f8N b2 f7 Qa3 Ng6 Nf6 f8R Nd7 Ngf4 Nb6 Rf5 Re8 h8N Qb3 Nhg6 Bf6+ Ne5 c5+ Ke4 Ra7 Nf3 e5 d4 Ra8 Ke3 e4 Nh2 Qa3 Bb3 c4 Qh8 Ra7 Nh5 Qc5 Na4 c3 Bd2 c2 Nc1 Rc7 Be1 Rc6 Nc3 Be6 Bg3+ Be5 Kd2 e3+ Kd3 e2 Ke3 e1N Ke4 Kd7 d6 Nf3 d5 Qf2 Kd3 Qg1 Ra4 Bf6 N1e2 c1N+ Ke4 Nd3 Nc1 Nf4 Bc4 Kc8 d7+ Kb7 d8R Nh3 d6 Be5 Nd5 Bc3 d7 Rd6 Nf1 Kc6 Nh2 Kc5 Rc8+ Rc6 d8N Qe1+ Kd3 Qe5 Nf7 Qe3+ Kc2 Kd4 Kb3 Rd6 Rc5 Bc8 Ka3 Rg6 Nd6 Re5 Nd3 Re1 Rc1 b1B Rd1 Bc2 Rd2 Bb3 Nc7 Re8 Bf7+ Bc4 Nd5 Rb1 Rg2 Rb5 Nc1 Qe2 Nb3+ Kd3 Nc1+ Kc2 Rf2 Kb1 Rg2 Qe3 Re2 Ra5 Rd2 Bb5 Kb3 Bbd7 Ka3 Be6 Kb3 Nd7 Kc4 Rb5 Nf4 Rb8 Nh5 Nb6+ Kb5 Ka1 Kc6 Nc4 Rf6 Rb5 Rf5 Nb4+ Kc7 Nb6 Kb8 Na6+ Ka7
b1QB1Nb1/3bp1p1/2n4b/RrN1P1R1/B1R4q/N2K4/1r2nk1r/1R1nR2N b - - 0 1 illegal: No proof kernel forced: wxDB
nbnn2qn/1B1p1RNk/2P1R2r/1B4p1/1Q3Bbb/RBR1r3/3N3r/2K4R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 a5 h4 f5 c4 Kf7 e4 Kg6 b4 a4 h5+ Kh6 e6 f4 e5 a3 b6 f3 e7 d3 e8B g3 b5 f2 b7 a2 e6 g2 e7 Kh7 b6 Nc6 b8R Bb7 h6 Ra3 Nh3 g1N c5 Ne2 Qe1 Nf4 Bf7 Ng6 e8B Be7 Rc8 Bh4 Bd5 N8e7 Bef7 Qg8 Nf4 Nd8 Ne6 Bc6 Bdg2 Bf3 b7 Bg4 b8R Rc3 Rc6 Nc8 Rbb6 Ra3 Be2 f1R Rc7 Rf4 Bb7 Rf2 Kd1 Rc3 Bf4 Rh2 Nd2 Ra3 Kc1 Rb3 Rb1 a1B Ra6 Bc3 Rba1 Be5 R1a3 Bd6 Rcc6 Bb8 Rf1 Rb4 Rc3 Re4 Raa3 Re3 Rh1 Nf8 Rb6 g5 Ng7 Ng6 Re6 Bg3 c6 Bh4 Nf1 d2+ Kc2 d1N Kc1 Bf3 Bb5 Nb2 Nd2 Na4 Rf1 Rd3 Qe4 Nab6 Qb4 Bg4 Re5 Na8 Bb3 Re3 Re6 Qe8 Rh1 Rf8 Rf1 Nh8 Rf2 Rf6 Rf3 Kg6 h7 Qg8 Rf1 Kh6 Rh1 Nhf7 h8R+ Kg6 Rh7 Nh8 Re4 Rd6 Nf5 Rf6 Rf7 Rd6 Ng7 Kh7 Ree7 Rh6 Re6
n2r2Rq/N1pQ1P2/bbn1B1Rk/1B1n4/1pR1R3/1N2B3/2B2r1b/1Kn2R1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 Kg7 Kc2 h5 f4 b5 g4 e5 a4 h3 d6 e4 a5 h2 d7 e3 d5 e2 a6 e1B d6 h4 f6+ Kg6 f7 h3 a7 Be7 f8R Bf6 f5+ Kg7 g5 Rh4 g6 Bb7 Nf3 Bc8 Re8 Bfc3 Ra5 Bf2 Ne5 Ba6 Nd2 b3+ Kb1 b4 f6+ Kh6 g7 b2 Nb3+ Rf4 Bb5 Ne7 g8B Bb6 Nc6 Be5 Be6 Nd5 Rf1 h1R f7 h2 Be3 Qf6 d8R Qh8 d7 Bd6 Ne7 Nc6 Nc8 Rb8 a8B Be5 Bg1 Rf2 Na7 Rc8 Re7 Bf4 Rg8 Rd8 Rg4 Bd6 Rc4 Bf4 Ka2 b1N+ Qd2 Na3 Re8 Rg2 Be3 Re2 Rg8 Rf2 Re4 Nc4 Kb1 Bd4 Rg5 Ncb6 Ra2 Bc5 Rc2 Bfd6 Bb7 Na8 Rcc4 Bb6 Bc8 Rg1 Bf5 h1N Bh7 Bh2 Qd4 Re8 d8R Ng3 Be6 Rh1 Qd3 Ne2 Rc8 Re7 Rcg8 Re8 Qd1 Nc1 Bg6 Nde7 Qd7 Rf8 Ree5 Nd5 Bc2 Rc8 Ree4 Rd8 R5g6+
Bn1nK3/3RN1N1/1Bq1PBBN/bnn2p2/2pQR3/1q1N2B1/b1r1rn2/1k6 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 f3 d6 a4 d5 f2 b6 h3 d7 h4 Ke6 h2 Kf7 a3 e5 h3 d6 a2 b7 Ra6 Be3 Ra8 Ne2 Be7 Qd4 Kb3 Nf4 Kc2 b4 Ra5 b5 Ra7 Nc3 Qb6 d8N Bd7 Re1 a1N Ncd5 Ra2 Nd3 Nb3 Ne6 Bd8 Ne7 Nc5 Bg2 f1N Bg1 Bc6 d7 Ng3 Ke8 Nh6+ g8B Nf7 Re4 Ne2 Ng7 Kb1 e6 Rc2 Bf3 Rh6 Bh7 Nc3 Bg6 Bc7 Ng8 Nd8 Bg2 Rh4 Nh6 Rg4 Bf3 Rf4 Bg2 Rff2 Bf3 Rfe2 Bf2+ Rc1 Rd1 h1Q Bh4 h2 Bf6 Bd5 Bg2 Qc6 b6 Nb5 Rd2 Rc2 Bf3 Nba6 b8B Qd1 b7 Ba5 Bg3 h1N b8N Nf2 Bg2 Qb7 Nc6 Nb8 Ne7 Qc6 Bh1 Qc1 Re5 Qa3 Re3 Bg2 Re5 Bf1 Bd5 Qb3 Re4 Qd6 Ba8 Qc6 Rd1+ Rc1 Nf4 Kc2 Neg8 Re3 Qd6 Bd3 Ne7 Re2 Rd2+ Kb1 Rd1 Ka2 Rd2+ Bc2 Rd5 Bb1 Nd3 Rc3 Qe5 Ka1 Qd4 Ba2 Rd6 Kb1 Rd5 Rcc2 Rd6 Qa6 Rd5 Nf7 d8B Qc8 Rd7 Qc6 Bdc7 Nd8 Bb6
3bB3/K2n2RR/B1Rrp3/pBQ5/1B1q4/2nP1b2/b1bRqr2/BbN1k1N1 b - - 0 1 illegal: No proof kernel
R1Q1N3/1N6/2P1KBn1/1p1r1r1p/1N6/qrBr1bbB/rk1q1R1B/2N2n1B b - - 0 1 illegal: No possible last move, all moves rejected
1BBq1n2/1krp1NBR/p2K1b2/4rr2/2bRP2q/N1Q1Rr1R/n3B3/1r5R b - - 0 1 illegal: No possible last move
R4rq1/b5n1/4bRn1/qnkNrq1B/2P1R3/1ppRQRQ1/3R1nN1/5KB1 b - - 0 1 illegal: No proof kernel
3b1Bb1/rqN2N1q/2BRNr1n/kB4N1/n1p4P/bp1Q1r2/r1R2N2/4K1B1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 d4 b5 a4 e5 f4 c5 f6 Kc7 a5 g5 a6 Kb6 f5 g3 a7 e4 d6 g2 f7 b3 d7 c4 f6 b4 d5 b2 d6 e3 Na3 b1Q Qf3 b3 Nh3 g1B Qg3 g4 Be2 Na6 Nf2 Qh7 Rh2 Qc7 d8N Qb7 d7 Nc5 Bf3 e2 Ne6 Na4 d8N Ka5 Be3 Nh6 Ng5 Be6 Nb5 Ba3 Nc7 Rf8 Rd1 Bd5 Qd6 g3 Rg2 Be6 Qd3 Bd5 Rh2 g2 Bc5 Be6 Bc6 Bd5 Bb5 Be6 Kd2 e1R Bd4 Re3 Bc5 Rc8 a8B Rf3 Ke1 Rb8 Rd2 Bd5 Rc2 Be6 Rh1 Bh2 Rf1 g1R Ba7 Rg2 Bc5 Qa7 Bac6 Ra8 Bd4 Qb7 Rg1 Rg8 f8B Rg6 f7 Rgf6 Bdc5 Bf4 Ba7 Rh2 Rg4 Bfd6 Rd4 Be7 Rd6 Bd5 Nd1 Rd2 Bg1 Ra7 Nf2 Be6 Bg7 Bd5 f8N Bg8 Ndf7 Bd8 Nfe6 Re2+ Kf1 Rd2 Bf8 Re2 Rc1 Rc2 Ke1 Ra2 Rc2
Q1nq3q/2B1b1B1/BR3n1q/2br2pB/R1brP2N/1p1B1N2/4bkR1/1RK5 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 h4 Kd7 a4 b5 d4 f5 Kd2 c5 e4 f4 d6 Kc6 d7 f3 e6 g3 e7 c4 e8B f2 a5 g2 h5 b3 d5+ Kc5 h6 Kd4 a6 b4 d6 b2 a7 b3 h7 Ne7 Bh5 Ba6 Ra4 Nc8 Bd3 f1B Qg4 Rg8 h8R Be2 Rh6 Be7 Qe6 Rf8 Qg8 Rf5 Rg6 Rd5 Nf3+ Kc5 Rd1 g1B Nh4 Kd4 Rg2 g5 Na3 b1Q Nc2+ Ke5 Ba3 Kf4 Bb2 Qa1 Rb1 c3+ Kc1 Bc5 Nd4 Ke3 Ndf3 c2 Bg7 Bc4 Qh8 Qf6 Qf8 Qh6 Qg8 Qa5 d8B Nd7 Bc7 Nf6 d7 Rb8 d8R Rb4 a8B Qb6 Rg1 Kf2 Bb7 Qa5 Rd6 Qb6 Bb8 Qd8 Rb6 Qh8 Ba6 Qh6 Bc7 Qh8 Kb2 c1Q+ Ka1 Qf4 Kb2 Qf5 Rg4 Qfh7 Kc1 Qh6 Rg1 Bb5 Qe8 Rbd4 Qc6 Bc4 Qa8 Qg6 Rg3 Qgh6 Rg2+
n2RRRrr/3b2q1/1Bb5/1n1r1qpp/R4Qr1/1Kbk4/2B4P/RNRNQ3 b - - 0 1 illegal: No possible last move
q2n4/2nN1q2/2BBRrRb/4NpN1/B2pn2b/r1BP2Q1/1k1bN1n1/5K1N b - - 0 1 legal: proof: b4 e5 c4 g5 a4 b5 cxb5 d6 f4 exf4 h4 gxh4 a5 Qg5 a6 Be7 b6 Bf8 b5 Bb7 axb7 Qd8 g4 Kd7 e4 Ke6 d3 Ke5 g5 Kd4 e5 h5 g6 f5 g7 a5 e6 c5 e7 a4 e8B c4 Qf3 d5 Ra3 c3 Rh2 h3 Qg3 f3 Raa2 h4 Qg5 f2+ Ke2 a3 Qg2 c2 Bf4 c1B Qg5 Nh6 g8N Qc7 Rg2 h2 Qg3 h1Q Bd6 h3 Nf6 h2 Ng4 Nf7 Nd2 Kc3 Ndf3 Bfh6 Ng5 Na6 b8N Rf8 b7 Bd2 b6 Nd8 Ba4 Rf6 Nc6 Qf7 b8N Nc7 b7 Ra5 Ra1 a2 Nd7 Kb2 Re1 a1B b8B Ra6 Nce5 Ra8 Kf3 Ra7 Be2 f1N Kf2 Ne3 Bf3 d4 Ne2 Ra5 Rgg1 Ng2 Bfc6 Ra7 Bb4 Ra6 Nh3 Bdg5 Kf1 Bh4 Ng5 Ra8 Bab5 Ra3 Bd2 Ka2 Bb4 Bc3 Ba4 Bd2 Nf2 Kb2 Ba5 Nf4 Bb4 Qhd5 Nh1 Ng2 Nc3 Qa5 Re3 Qa8 Ne2 Ne8 B8d6 Nc7 Nf2 h1N Bc3+ Kb1 Nfh3 Nf2 Re4 Ng4 Nf2 Ka2 Nh1 Nf2 Ng6 Kb1 Re6 Ne4 Nge5 Ka2 Qf4 Ne1 Rg4 Ng2 Qg3 Kb1 Ngf3 Ka2 Rg6 Kb1 Ng5 Ka2 Ba5 Kb2 Bc3+
Q1r5/b1q4q/bbRB4/P1Q1Bp2/Kn4Bn/pBBBr3/1N1Rb3/3n1kN1 b - - 0 1 illegal: No proof kernel
2k1B3/B1n4R/2QN1npn/Rqpqr1r1/4P3/3N2B1/bNNB3K/b1q1nB2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Kd7 Kg2 c5 b4 f5 d4 a5 e4 c3 h4 a4 d5 a3 h5 g6 e6+ Kc7 h6 a2 b6+ Kb7 d6 g3 d7 c2 b5 f4 e7 Na6 e8B Bd6 h7 Nf6 Ne2 Be5 Nbc3 Nc7 Bd2 c1Q Nd4 f3+ Kh3 g2 Na4 g1Q Nc2 f2 Nb2 Kb8 b7 Ra6 Qf3 Re6 Rh2 Rf8 h8N Bd4 Qd1 Re5 Nf7 Rg5 Ne5 Qh1 Bc4 f1N Ned3 Ne3 Qg4 Bc3 Qe6 Neg4 Qc6 Qhf1+ Kg3 Rg8 Rh7 Nh6+ Kh2 Rg7 Be6 Bd4 Bh3 Re7 Bg2 Ree5 Bh3 Qe7 d8N Qe6 Nf7 Qd5 Nd6 Be6 Bg2 Ka7 b6+ Ka6 Nf4 Qb5 b8B Bc3 Nfd3 Bf7 Rb1 a1N Ba7 Bg8 Bf1 Be6 Na3 Nc2 Ra1 Ne1 b7+ Qb6 Qd7 Qb5 b8B Bf7 Ndc4 Kb7 Nc2 Be6 Qc6+ Kc8 Ra5 Qd6 N4e3 Ba2 Nec4 Qd5 Qb6 Na8 Bd6 Nc7 Qc6 Re6 Bg3 Ree5 Nd1 Ba1 N1b2 Qb7 Rd7 Qb8 Rh7 Qb5 Nd6+
b3Nb2/KN1r1b2/3RpN1N/B2n1Bk1/bQ2r1qn/PQN1pq2/5n2/3N2R1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 gxh5 fxe4 Ke2 Kf7 Ke3 Kf6 Kd4 b5 Kc5 g5 d4 g4 f4 e6+ d6 b3 h4 e3 d5 b2 a3 g3 f5 b4 h6 b3 h5 c6 h7 g2 h6 Ra6 Nh3 g1Q Bd2 Qe7 Bd3 Qeg7 Ba5 Qd7 Nc3 b1B Nf2 b2 Qb3 Kg5 f6 Bc2 f7 b1B Bf5 Qg4 Nfd1 Nf6 Rg1 Ra7 Kb6 c5 Qb4 Qa4 d7 c4 d8Q Nc6 d6 Ne7 d7 Bb7 Qb8 Ba8 d8N Rd7 Nb7 Qc6+ Ka7 Nfd5 Ra2 Bb3 Rd2 Ba4 Rd3 Rg8 h8N Ng6 h7 Nh4 Qb3 Rg7 Qd6 Rg6 Qdb4 Rf6 Ng6 Bc2 Ne7 Rg6 h8N Rh6 Nb5 c3 Ng8 Bb1 Rd2 c2 Nf6 c1N Nbc3 Nd3 Ne8 Nf2 Rd3 Nf6 Rd6 Qf3 Qa2 Nd5 Qab3 Be7 f8N Be4 Nfg6 Bf8 Ne7 Bb1 Ng8 Bc2 Bh7 Bg6 Ngf6 Bf7 Bf5 Rh5 Ng6 Rh7 Ne7 Rh8 Neg8 Rh6 Nh5 Rg6 Nh6 Rf6 Bb1 Rf4 Bf5 Re4 Nhf6
2r1R2n/2N1K1BQ/1q2p2N/1B4r1/b1n1P1p1/N5R1/1n1NN1R1/2Rrbkrq b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 e4 Kf7 Ke2 Kg6 Kf3 Kh5 Kf4+ Kh4 Ke5 a5 f4 Kg3 b4 Kf2 d4 g5 b6 h5 f5 c5 f6 a4 b5 e6 b7 h4 d6 g4 f7 a3 b6 a2 d7 h2 d5 c4 d6 h3 Nd2 c3 Bb5 c2 Bb2 c1Q Ne2 Bh6 f8N Ra5 Ng6 Ne7 Kf6 Nbc6 b8N Ne5 b7 Qb6 d8N Nc4 Nf7 Bd7 Na6 Rc8 Rg1 h1N b8R h2 Nge5 Ng6 Rg3 Nh8 Nc7 Be8 Rb1 a1R d7 Bf8 d8R Bb4 Qa4 Ke1 Rg2 Nf2 Nh6 h1R Rd3 Rg1 Rdg3 Nd1 Bd4 Bc3 Ke7 Ndb2 Qb4 Qd1 Rc1 Bd7 Qd6 Be8 Qd7 Rb1 Nb3 Kf1 Ra8 Be1 Rb8 Nd6 Nc4 Rba1 Na3 Ndc4 Bg7 Rb1 Ba6 Rg5 Bb5 Ra1 Qd8 Bc6 Qg8 Bd7 Qh7 Be8 Ba6 Ba4 Ra8 Qd3 Bb5 Qf3 Rh2 Qh1 Rhg2 Rd8 Rc8 Rd1 Re8 Rd8 Rcc3 Rad1 Rc1 Rc8 Nd2+
5N1q/1q2b3/1N1p1BPn/2NB3K/pBB1r1N1/1Nq3Qb/n2R1qb1/2Rr2k1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 b4 Ke4 c4 e5 f4 a5 f6 d3 f5 h6 b6 h3 b5 a4 c5 h2 f7 d2 f6 Ke3 c6 Kf2 b7 e4 b6 e3 c7 e2 Nh3+ Ke3 Nf2 e1Q Kh5 Qe7 g4 Ra5+ g5 Rd5 Qg4 Na6 b8N Nb4 b7 Na2 Bb2 d1Q Na6 Qf3 b8N Qc3 Bc4 Rd1 g6 Qeb4 Nd2 Qbb7 Rf1 h1B Nc5 Bg2 Ndb3 Be7 f8B Qe2 f7 d6 Bg7 Qed2 f8N Qdd4 Qh4 Bch3 c8B Kf3 Ng4+ Qf2 Nbd7 Rh7 Bh8 Rf7 Nd3 Rf4 Nb6 Re4 Bf6 Ke2 Bf5 Kf3 Rh1 Ke2 Rh2 Kf1 Qg3 Kg1 Kh4 h5 Bfe6 Nh6 Ba3 Qf3 Ndc5 Qf2 Kg5 h4 Rc1 Qfe3+ Qf4 Bh1 Nd3 Nf7+ Kh5 Bf1 Na8 h3 Rd2 h2 Bb4 Qf2 Nb6 Bf3 Ndc5 h1Q+ Bh4 Qh3 Bed5 Qh8+ Nh7 Nh6 Qe5 Bh1 Nf8 Qc3 Qf4 Bh3 Bf6 B1g2 Qg3
1B2b3/4rRNq/NppNN1B1/B4n2/2rN1bq1/1P1rR2Q/n5B1/qqk4K b - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 Qc2 a3 Qb2 axb2 a4 Kd7 g4 Kd6 f4 Kc5 Kf2 Kd4 Kg2 e5 a5 h5 f6 c6 f5 e4 d6 e3 g5 e2 a6 Kd3 d7 Kc2 d4 e1Q g6 Qee7 f7 Qe5 f6 Qf5 a7 Na6 g7 Kd1 d5 Ne7 g8B Nc5 d6 Ne6 Na3 b1Q Nf3 Nc5 Nb5 Nd3 Nfd4 Nb4 Bh7 Na2 Bg6 Qa5 d8B Bh6 f8N Bd7 f7 Bf4 Nfe6 Rh7 f8N Be8 Rh3 Qg4+ Kh1 Nf5 d7 Re7 Re3 h3 Ng7 h2 Nd6 h4 Nfe6 b6 Bc7 Qc3 Bd2 Rd8 a8N Qb2 Ba5 Kc1 Bb8 Qc2 Rg3 Qc3 Nac7 Qe1 Kg2 h1R Na6 Rh2+ Kg1 Rc2 Kh1 h3 Re3 Qeh4 Bg2 h2 Ne4 Qh7 Nd6 Nc3 Ra3 Na2 Ra4 Rc4 Rb4 Rc8 d8Q Rcc7 Qc8 Rcd7 Nf7 Rd5 Nd6 Qa1 N4b5 Rd3 Nbd4 Qb1 Rb5 Qa1 Rbe5 Qb1 Rf3 Qa1 Ree3 Nh4 Bh3 Bh6 Re1+ Kb2 Rf7 Bf4 Nec5 Qf5 Bg2 Qg5 Qh3 Nf5 Nce6 Qg4 Bf1 Ng3+ Kg2 h1Q+ Kf2 Nf5 Re3 Kb1 Bg2 Qc1 Ne4 Qc2+ Kg1 Kc1 Nd6 Qcb1 Kh1
2rR2BN/5p1r/2B3B1/Q6k/1rBr1P1n/2Bbq2p/qQ2N3/Bn2bKbR b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 d4 a5 c4 h5 g4 e5 f4 h3 d5 h2 g5 h4 b6 a4 d6 h3 b7 e3 g6 e4 g7 e2 c6 a3 c7 a2 c5 Nf6 g8B Rh7 d7+ Ke7 c6 Qe8 Nc3 Nd5 Qd2 Kf6 d8Q+ Kg6 Kf2 e1B+ Ke2 e3 Qb2 Bc5 Bd2 Bf5 c8B Kh5 c7 Nc6 b8B Nce7 Nf3 Ng6 Rd1 a1Q Bb7 Nh4 c8B Qa2 Be5 Ra4 Ba8 Rd4 Qa5 Qe6 Bc6 Qe7 Rg1 h1R Bh8 Rb4 Ne5 Bg6 Bf5 Ba7 Kd3 e2 Bf6 Rh2 Rh1 Bg1 Bg7 Bg3 Bf6 e1R Ne2 Nc3 Bg7 Nb1 Bc3 Rf2 Ke3 Qee6 Rd8 Rc1 Bh8 Rg2+ Kd3 Be1 Bg7 Rh6 Bh8 Bh7 Ng6 Rf2 Bhe5 Rd1+ Ke3 Rdd4 Nh8 Bg6 Bfg2 Qe7 Bgd5 Rh7 Bc4 Qe8 Nc1 Rf3+ Ke2 Rg3 Kf1 Qe7 Bfd7 Bd3+ Ne2 Rg5 Bg7 Rc5 Bf5 Qe3 Qc2 Ng2 Ba1 Nh4 Qb2 Rdd5 Bc3 Rd4 Ba4 Rc7 Bc6 Rc8 Bg6+
r3BN1b/q2PB1qQ/1Bq1p3/n1NB3B/nn1Rpk2/3r1b2/B2R3Q/K1n5 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 f4 Kf7 a4 Kg6 d4 Kf5 Kd2 h5 Kc2 b5 Kb2 c5 g4+ Kg6 d6 h4 f5+ Kf7 f6 Ke6 a5 b3 g6 b4 g5 Kf5 a6 h3 d5 c4 g7 h2 a7 Na6 f7 Rh6 d7 Bb7 d6 Qb6 d8B Qc6 d7 Rd6 g6 Nb8 Nd2 Rd3 Ne2 Nf6 g8B Bg7 f8Q Bh8 g7 Kg5 Nd4 Nd5 Ra2 c3+ Ka1 c2 Qf2 Ba6 Ba3 c1N Be2 Bb5 Qfg1+ Kf4 Bf7 Ba4 g8B b2+ Kb1 Bb3 Be8 Ba4 Qde1 Bd1 B2h5 Be2 Qg7 Bf3 Rg1 h1Q Qf2 Qh2 N2b3 Qg3 Qh7 Qg2 Nc5 Qg7 Kc2 b1N Kb2 b3 Ka1 Nb4 Rd1 Nc3 Rad2 Na4 Bb6 Qb5 Bgf7 N8c6 Bc4 Na5 Qh2+ Ke3 Be6 Qc6 Bd5 Rc3 Nde6 b2+ Kb1 Rd3 Nf8 e6 Ba2 Rd8 a8B Rc8 Qg2 Kf4 Bb7 Ra8 Qg1 Qc7 Bbd5 Qc6 Qh2+ Qg3 Beg6 Nab3 Bd8 Rd4 Bb6 Na6 Nb7 N4c5 Rf2 Rd2 Be8 Rd4 Kc2 b1Q+ Kc3 Qd3+ Kb2 Qe3 Bd8 Na5 Ka1 Na4 Bae7 Nb4 Rc2 Rd2+ Rb2 Qa7 Bb6 Rd4 Nc5 Rd2 Qe2 Rd4 Rc2 Qg7 Qh2+ Qg3 Rc4 Rd2+ Rd4 Rd3 Qh3 Qg5 Rd2 Qg7 Qh2+
R1B4r/1qp3BR/2pN3r/4N3/r1bBbQ1P/BB4nK/1q2n1Rb/bR5k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 exf4 a4 Nh6 axb5 Ng8 c5 Qf6 c6 dxc6 Bh3 Qg5 Bf1 Qd8 Kf2 Kd7 Kg2 Kd6 e4 Ke5 b4 a5 h4 f5 h6 g5 h7 f3+ Kh3 Kf4 b6 a4 b7 a3 e5 a2 e6 f2 e7 Ra4 e8B Na6 b8B Qd4 b5 Qb2 b6 Nh6 b7 Nb4 Ba7 Bd6 b8R Nc2 Nc3 Nd4 Ne4 Ne2 Rb1 a1B Rh2 Bd7 Bg2 f1Q Bf7 Be6 Qc2 Bc4 Ra8 Qb7 Qa2 Qf2 Nf3 Qd4 Bb6 Qb2 Bd4 Be5 Be6 Bd3 Nd6 Be4 Ne8 Bd6 Bb3 Be5 Bf1 Bd6 Rg2 g4+ Kh2 g3+ Kh3 Be5 Qa3 Bd6 Qb4 Be5 Rg1 g2 Nd6 Ng3 Ba6 Ne2 Rh1 g1R Rh2 Rg6 Rg2 Qc3 Ba3 Qb2 Ba7 Re6 d4 Ke3 Bb6 Bh2 Ne5 f4 Bc5 f3 d5+ Kf4 Bd4 f2 Qc4 f1B Qb4 Rhe8 h8B Nf5 Bg7 Rh8 Qc4 Nfg3 Qb4 Rh5 Rh8 Rhh6 Rh7 Re8 Qc4 Rh8 Qb4 Qb8 Bc8 Qb5 Ndf7 Qb7 d6 Qc1 d7 Qb2 Nd3+ Kf3 d8R Nc1 Nd6 Be2 Nf2 Bc4 Nd3 Nce2 Ne5+ Kf4 Rgg1 Bcd3 Bg4 Bf5 Qc3 Bc4 Ra8 Bfd3 Bc8 Be4 Nd3+ Kf3 Qd2 Qc2 Bdb2 Qc1 Ne5+ Kf2 Rg2+ Kf1 Rf2+ Kg1 Rg2+ Kh1 Bc3 Rd8 Bd4 Rh8 Bd1 Qc3 Qf4 Qcb2 Bb3+
B2N4/1P1nB1RK/1r5n/R1BQ1Rbk/5n1n/2p2q1r/1r1pb2N/q3BR1R b - - 0 1 illegal: No proof kernel
1q2Qb2/QP1B4/1Q1n3b/bpBR3R/1nN3pq/K4Q2/nQ3Nbr/r1Q2k2 b - - 0 1 illegal: No proof kernel
rbnnn1N1/1P1N1bq1/6p1/3kpR2/3Bb1KN/RB1R4/2QNNb1q/5R1r b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 f4 a5 c4 d5 b4 e5 h4 a4 c5 a3 b6 g3 Kf3 a2 b7 d3 f6 Ke6 b5 g2 f5+ Kd7 b6 Kc6 h5 d2 h6 d4 h7 d3 f7 Bd6 f8N Qe7 f6 Qd7 f7 Kd5 c6 Nf6 c7 Ne8 Ne2 g1Q Ng6 Qh2 f8R Nc6 b8N Nd8 Nh4 g6 b7 Qg7 Bb2 Bf5 c8N Be4+ Kg4 Bc7 Nd7 Bb8 Qa4 d1B Nd2 Bb3 Rf5 Bc4 Rd1 a1B Qc2 Ba2 Bd4 Bb3 Ndf3 d2 Bg2 Bc4 Rhf1 Bc3 Ra1 d1N Ra3 Be1 Nd2 Bf2 Bh3 Nb2 Ne7+ Kd6 Rd3 Bf7 Ng8 Nc4 Bg2 Nb6 Bf3 Bc6 Bd5 Nc8 Bb3 Be4 Ne7 Rf8 h8R Rg8 Rhh5 Rh8 Ng8 Rh7 Rff3 Rh6 Rhf5 Rh8 Ba4 Kd5 Ra3 Rh7 Bb3+ Kd6 Qb2 Qg1+ Ng2 Rh1 Rd3 Qh2 Nh4 Kc6 Qc2+ Kd6 Ba4 Kd5 Bb3+
Kb1nR1b1/pB1n2Qq/2N1BB1k/2p2r1r/Br1PQ1b1/3b2Bq/6R1/2N3B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 f5 b4 Kf7 d4 Kg7 g4 h5 e4 h3 e5 h2 b6 h4 e6 h3 d6 Bd7 b7 Ba4 b5 Bc2 g5 Be7 g6 Nf6 b6 Ba4 d7 Rh5 Ne2 Qc7 d8B Nh7 Qd3 Qc6+ Qe4 Bh4 e7 Nf6 e8B Nd5 Na3 Kh6 g7 Qe6 g8B Bg3 Nc2 Nd7 b8B Nc7 b7 Bb3 Rg1 h1B+ Bg2 h2 Nb4 Qe7 Be6 Qh7 Bf6 Ba2 B6f7 Ne6 Be3 Nd8 Be6 Bc4 Bd6 Rb8 Rae1 Bd3 Bf2 Bc4 Nc1 Bd5 Ke2 f3+ Kd3 f4 Nc6 Ba2 Be3 f2 Bf3 f1R Rg2 Bb3 Bg1 Bd1 Kc4 Rf2 Be2 f3 Kb5 Rf1 Ka6 f2 B2c4 Bg4 Bcd5 Be5 Rg3 Bhf3 Rg2 h1Q Re2 Qh3 Bc7 Ra8 b8Q Bf4 Qbb1 Rb8 Qb7 Bh2 Re1 Bd1 Bg3 Bb3 Qc7 Rb4 Re3 Re1 Qb7 f1B+ Ree2 Rc4 Re3 Bd3 Qc7 Rf1 Ree2 Nf7 Kb7 Nd8+ Ka8 Ra4 Nb4 Rff5 Bb7 Bbc4 Nc6 Rb4 Bd5 Qh8 Bge5 Rf1 Qf3 Nb8 Bef7 Ba6 Bb3 Bac4 Ba4 Qh7 Bd6 Ba2 Re8 Bd5 Qe4 Rff5 Qce7 Nd7 Bde5 Bg3 Bb8 Bh4 Bbh2 Bg3 Bg8 Bb8 Bg3 B5c4 Bd5 Ba6 Ba2 Bac4 B2b3 Bf7 Be6 Bg8 Qg7+
1K2Rb1Q/2B1rn1r/k3Q1br/2rPpn1r/N3R1Qq/2p3Q1/2B1N3/1Q2Qr2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kd4 c5+ Ke5 Kc7 g4 Kb7 d4 h5 f4 a4 b4 h3 f5 c4 g5 a3 d6 e3 b6 e6 d7 h2 f6 e2 g6 e1R+ Ne2 a2 f7 h4 d5 h3 b5 Qh4 d8Q Bb4 f8Q Bc3+ Kd6 Nh6 g7 Ra7 g8Q Nd7 Qf4 Ra4 Qfg4 Bg7 Bf4 Ra8 Nbc3 Rh7 Na4 c3 Bg2 Ra5 Be4 Rf1 Qe1 Ne5 Bc2 Bf8+ Qe7+ Bd7 Qh8 Ra7 Rd1 a1R Rd4 Ra2 Rg1 h1R Re4 h2 Rg3 Rb2 Rge3 Rb4 Bg3 Rc4 Bf4 Rc5 Bg3 Kb8 b7 Be8 Bf4 Bg6 Bg3 Ra8 Bf4 Ka7 b6+ Ka6 b8Q Ra7 b7 Nef7+ Kd7 Rhg1 Bc7 h1R Kc8 Rf5 Qef6 Rh5 Qe5 Rf1 Q5g3 Bf5 Qa8 Rh2 b8Q Bg6 Qbb1 Nf5 Kb8 Rh3 Bb6 R5h6 Qc6 Re7 Qd7 Qf6 Bc7 R3h5 Rf3 e5 Qe6+ N5d6 Rf5 Qh4 Rg5 Bf5 Rg7 Bg6 Rg8 Bg7 Bb6 Nf5 Re8 Bf8 Bc7+
1qnr1BK1/1b1p4/RrBB2Nr/3NN3/2Q1pN2/2PrR2n/1b4rB/2k1N2r b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 g4 h5 f4 e5 b4 a4 b6 d3 b7 d2 c3 a3 g5+ Kg7 f6+ Kg6 f5+ Kf7 b5 h3 b6 h4 Bb5 h2 Qg4 d1R Bf4 a2 Na3 h3 Bc6 Bh6 Nc2 Rd3 Ne2 Na6 b8N Nc7 b7 Ne7 Rhe1 h1R Bh2 Rg1 Nf4 Rg2 Re3 Ne6 Ne1 Ra6 Qe2 Rb6 Qf1 Qc7 Qe2 Rd8 g6+ Ke8 g7 Kf7 g8N Bf8 Na6 Qb8 Nc7 Bh6 Ncd5 Bf8 Rb1 a1R Rb2 Raa6 Ra2 Ng6 Ra1 Ba3 Nge7 Bb2 Qf1 Qd6 b8B Bb7 Ra4 Qc7 Ra3 Qc8 Bd6 Qb8 Nc8 Ne7 Na7 Nc8 Ra4 Kg8 f7+ Kg7 f8N Kh6 f6 Ng5+ Kf5 e4 f7 Rd1 Kf6 Rd3 Bg3 h2 N8g6 h1R Bh2 Nh3 Ra5 Rd4 Qc4 Rd3 Ne2 Kh5 Kg7 Kg4 f8B Kg5 Kg8 Kg4 Bg1 Kg5 Nef4 Kg4 Nf3 Kg3 Bh2+ Kf2 Ne5 Kf1 Nb5 Kf2 Na3 Kf1 Rf3+ Ke1 Nc2+ Kd2 Re3 Kc1 Ne1 Rb3 N5f3 Rab6 Ra6 R3b5 Nc7 Rh5 Ne5 Rh6 Ncd5
R5KR/6p1/3bn1B1/1kqr2nb/NBNBr1b1/5RQ1/b2r1p1P/1r1RB2R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 Kd7 c4 f5 b4 a5 e4 f3 h6 f2 b6 Kc6 b7 f4 b5+ Kb6 c5+ Kc7 b6+ Kc6 h7 a4 e5 f3 e6 a3 e7 a2 e8R Qd6 Nd2 Ra3+ Qb3 Bg4 Ne2 Ra4 Nc3 Nh6 Re3 Na6 b8B Nc7 b7 Ne6 Ba3 Nf7 Rd1 a1R Bb4 Nfg5 Ba7 Rb1 b8B Ra5 Na4 Kb5 c6 Qc5 c7 Bd6 c8R Re8 Be2 f1B h8R f2 Rf3 Bh5 Nc4 Bh3 Rd8 B3g4 Bc7 Bf7 Ra8 Bg8 Kd2 d3 Kc3 d2 Bd3 Bh5 Bg6 d4+ Kc2 d3+ Kc3 Rf8 Bd8 Rf4 Bf6 Rh4 Bd4 Re4 Bb6 Ra7 B6a5 Rd7 Rde1 d1R Qa3 Rd2 Rd1 Rc1+ Kb3 Ra2 Be1 d2 Bb4 Bg4 Qb2 Bf7 Qc3 Rca1 Qe3 Rb1+ Kc3 Rd8 Qf4 Rab2 Qg3 Nc7 Be3 Rde8 Kd3 R8e5 Ncb6 Ba2 Nc4 Rd5+ Bd4 Re8 Be4 Bh5 Ke3 Ree5 Kf4 Rc2 Bg6 Re2+ Be5 Re4+ Kf5 Rcb2 Bh7 Bg4+ Kg6 Nce6 Bd4 Nh3 Kf7 Nhg5+ Kg8 Bh5 Rc1 d1B Rff8 Rbe2 Bg6 Rd2 Rf4 Bde2 Rd1 Beg4 Rf3
3B4/2N1pp1r/2qQ1Rq1/N1BRP2b/qr1n4/RRK2B1k/3B2n1/rB2r1r1 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 a4 cxd4 axb5 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 Kd2 h5 b4 a5 c4 d5 e4 Kd7 b6 Ke6 e5 Kf5 b7 f3 g7 Kg4 c5 h4 g6 h3 c6 a4 c7 h2 b5 d3 b6 a3 Kc3 a2 Bd2 Kg3 Na3 f2 Nf3 Bd7 c8B Nc6 b8B Nf6 g8R Rh7 g7 Nh5 b7 Bg4 Nb5 Ra4 Bf5 Nf4 Bd6 Bh5 b8B Nd4 Bg2 f1R Nc7 Re1 Rf1 h1Q Bc5 Qd6 Rd8 Rb4 g8R+ Qg6 Rb1 a1R Rb3 Re3 Bba7 Re1 Be4 Kg4 Bab6 Kg3 Ra8 Kg4 Raa3 Kg3 Be3 d2 Bb1 Kg4 Rd8 Kg3 Qc1 d1Q Nd2 Kh4 Bge4 Kh3 Nc4 Ng2 Na5 Qdg4 Bh6 Qd7 Rf2 Qa4 Qd2 Nc6 Qd1 Rg1 Rc8 Ne3 Na8 Qf3 Rd8 Ng2+ Bhe3 Qff6 Rf5 Qd6 Rf6 d4+ Kc2 d3+ Kc3 d2 Bf3 Qe6 Rd7 Qd6 Bd8 Qe6 Nc7 Qd5 Qe2 d1R Qd3 Rde1 Bd2 Qe6 Qa6 Nd4 Rd5 Qed7 Qd6 Qe8 Be3 Qec6 Bd2
r3B1qB/q3r3/Bb2QBb1/3R1nbN/Np4Np/qk6/1P2rb2/R1NKN3 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a3 d5 cxd5 g5 Bd3 gxh4 Bf1 Nc6 a4 b4 Nc3 Nd4 Nb1 Nb5 axb5 Bg7 Ra6 Bh6 Ra1 Bf8 f4 Kf7 g4 e5 d4 h5 f5 a5 f6 c5 g5 e3 g6+ Ke8 d6 Kd7 f7 Ke6 d7 Kd5 g7 e2 b6 Kc4 d5 h3 d6 h2 b7 e4 b8B h4 Nf3 a4 Nc3 a3 Na4 a2 Bg5 Rh7 Bf6 Be7 f8N Nh6 Ng6 Qg8 d8N Bf5 Nb7 Bd8 d7 Bb6 Qd6 Kb3 d8N c4 Nf4 c3 Nc6 c2 Nh5 c1B Nce5 Bg5 Ng4 Bg6 Qc6 Nf5 Bbe5 Bbe3 Rg1 h1Q Qe8 Bb6 Nbc5+ Kc4 Qc8 Qh3 Nd3+ Kb3 Rd1 a1Q Qe6+ Kc2 Nc1 Qa2 Nfh2 Qha3 Nf3 Qa1 Rd5 Q1a2 Nc5 Qa7 Na4 Qa3 Na2 Kb3 Bd4 Qf8 g8B Re7 Bf7 Qh8 Be8 Qg8 Kf2 e1B+ Ke2 e3 Kd1 Bf2 Ne1 Bd8 Bh8 Bb6 Bdf6 Bd4 Nf4 Bb6 Ba6 e2+ Kc1 Bfc5 Nc2 Ne3 Nh5 Bd4 Rd1 e1R Kd2 Bdc5 Ra1 Re2+ Kc1 Nf5+ Kd1 Bce3 Ne1 Bf2 Nc1+
1qR2n2/N2NRK1p/4Q1B1/3Q1Brr/2kbp2B/1qq5/1n1Brq1P/1B2n2B b - - 0 1 illegal: No possible last move
RR2Bq2/bK2Nb2/4k2p/2Q1B1nR/5nB1/1b2bRpN/n1n2B1P/2B3rb b - - 0 1 legal: proof: f4 c5 g4 e5 a4 b5 axb5 a5 d4 cxd4 Bh3 f5 Bg2 Ra6 Bf1 Rf6 Na3 exf4 Nb1 f3 Qd3 f4 Qd1 Rf5 gxf5 Bc5 Kd2 Bd6 Ke1 Bf8 Kd2 Ke7 Kd3 d5 c4 g5 b4 f2 e4 f3 b6 a4 b7 a3 f6+ Ke6 c5 h6 c6 a2 c7 g4 b5 Nc6 b8B Nb4+ Kd2 d3 Kc3 d4+ Kc4 d2 e5 d3 b6 Ne7 Kc5 Bb7 c8R Rg8 f7 Nc2 Bh3 f1B Na3 f2 Nb5 Nd5+ Nd6 Nf4 Bc7 Bfg2 Ra8 Bbd5 b7 f1N Kb6 Ng3 b8R Ne4 Nf5 Ng5 Rb1 a1B Rb5 Bb4 f8B Bd4+ Bc5 Qf8 Qe1 d1N Qc3 d2 Qc4 g3 Bg4 Nc3 Nh3 d1B Rf1 Bh1 Rf3 Na2 Bd6 Bg1 Bf2 Bd2 Qc5 Be3 Bc7 Bb3 Kb7 Rg7 Rba5 Rd7 Rb5 Be2 Rba5 Rd1 Bd6 Kf7 e6+ Kf6 e7 Bec4 e8B Bf7 Be5+ Ke6 Qa3 Ba7 Qc5 Rf1 Be1 Bd4 Bf2 Rg1 Ra4 Ne4 Bh5 Be3 Rb4 Nd5 Rc4 Nef6 Rh4 Nf4 Bg4 Ne4 Rh5 Ng5 Ne7#
2r2qr1/B1b3p1/2Rn2Np/2QR3p/2RK1k1P/b2n2r1/1B1nBN2/BBR2b2 b - - 0 1 illegal: No proof kernel
bN1Nn2B/b2p1n2/4p1K1/1rP3NR/4r2Q/k2q4/B1N1bp1B/1r1n1BRN b - - 0 1 illegal: No proof kernel
r1Br1N2/B1R3N1/2bBq3/1qrB4/3ppRN1/nnp2QB1/1NkP2bn/6K1 b - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 cxb5 Bg7 a5 Bf6 Na3 Bd4 Nb1 Bb6 axb6 Kf8 Ra3 Kf7 Ra1 Ke8 f4 Kf7 Kf2 Ke6 g4 Kd5 b7 Kd4 b6 e5 f5 a5 f6 d5 b5 c5 f7 h5 f8N h3 g5 e3+ Ke1 c4 g6 h4 g7 e2 Kf2 Kd3 Nc3 h2 Na4 d4 Qe1 c3 Nh3 Qe8 Nf4+ Kc2 Nb2 a4 Bh3 a3 Nh5 a2 Rf1 h1B Kg1 Nf6 g8B Bd7 Rf4 Nc6 b8B Na7 b7 Bdc6 b6 Ng4 Qg3 Nh2 Ng7 Nb5 Ba7 Na3 b8N Bhg2 Bc8 h3 b7 e4 Qf3 Qe6 Rb1 a1N Nbd7 Nb3 b8B Rh5 Nf6 Rc5 Ng4 e1Q+ Qf1 Qe2 Qf3 Qb5 Ra1 Qf5 Bd5 Qe6 Ra2 Nc4 Ra6 Na3 Rb6 Nf1 Rb7 h2+ Kf2 h1R Rc7 Rh5 Kg1 Nh2 Na4 Nb1 Ba3 Rh8 Bb4 Na3 Nb2 Rc4 Be7 Rc5 Bh4 Rg8 Bg3 Rh8 Rb7 Rg8 Bd6 Rh8 Rc7 Rg8 Nd7 Rd8 Nf8
5qRR/1Nr3b1/r1N1n1n1/4N1bB/2p1K2N/k3nQ1p/b1pQ1N1P/2NqB3 b - - 0 1 legal: proof: d4 b5 g4 d5 c4 dxc4 a4 e5 axb5 f5 dxe5 fxg4 e4 Ke7 Ke2 a5 Ke3 h5 f4 c5 b4 g5 f5 h4 f6+ Ke6 b6 h3 b5 c3 b7 c4 f7 a4 b6 a3 Qd2 g3 Ne2 a2 Rg1 Be7 f8Q g2 Qf3 Nc6 b8N g4 b7 g3 Nd7 Nd4 b8N Nf6 Nc6 Ra6 Bb2 c2 Nc1 Qf8 Nc3 Rh7 Nd1 Rf7 Rb1 a1B Nf2 Rg7 Kf4 Bd8 Bc3 Ng4+ Nf6 Re7 Be2 Rc7 Rb8 Bd7 Ba5 Ne3 Ra8 Qb4 N6g4 Bf6 Rh8 Qf8 Bb4 Be8 Bc3 Kd7 e6+ Kd6 e7 Kc5 e5 Bg5+ Ke4 Ne6 Bb4+ Kb5 Bc3 Ka4 Ba5 Bd7 e8N Ka3 Nd6 Bb2 Nb7 Bd4 Ne7 Ba4 Nc6 Bb3 Bd1 Ba2 Be2 Nd8 e6 Bg7 e7 Ne6 e8N Ra7 Ned6 Ra6 Rd1 g1Q Nf5 g2 Nh4 Qe1 Nge5 g1N Qf7 Qf1 Bh5 Ne2 Qf3 N2f4 Re1 Qe2 Rg1 Qd1 Bc3 B5f6 Rg6 Bg5 Ba5 B7h6 Rgg8 Bg7 Qde2 Ng6 Be1 Qe7 Qd2 Qf7 Nba5 Qf8 Nb7
3qb3/R3RN1K/1N3b1B/1rrbpQ1B/8/1RP1RpN1/Nn2r2p/3nkq1R b - - 0 1 illegal: No proof kernel
1n2RrNr/4N1BB/5BBn/1K1Pp1Q1/2N1qq2/b2N2p1/p3bn1R/2k2r1N b - - 0 1 illegal: No proof kernel
8/2bN1NBR/bqRBBK1n/3p1p2/b1prN1N1/Qq5B/1Pn1k2r/B4n2 b - - 0 1 illegal: Other
1krB3r/R2KB3/RqB1p1QB/2b2b2/pR2R2N/3Nb3/1P1p1n1n/1q3Bq1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 g5 Kd3 d5 h4 Kd7 f4 Kc7 c4 a5 c5 e6 f6 g3 c6 g2 b6+ Kd6 f7 g4 f5 g3 c7 Qd7 f6 Qa4 h5 Bh6 f8B+ Kc6 b7 Qb3+ Nc3 Bf4 f7 Nd7 b8R Qa2 h6 Ndf6 h7 Qb1+ Qc2 Be3 Rh4 Ne4 Be7 Ngf6 f8R Ng4 Nf3 g1B Rb4 g2 Rf7 Bb7 c8B Kc7 Ne2+ Kb8 Bd7 Nh2 Bc6 Bgf2 Ra3 g1Q Nf4 Rc8 h8B a4 Bhf6 Rh8 Rab3 Rc8 Rb6 Rh8 Ra6 Rc8 Rb4 Rh8 Ke2 d3+ Kd1 d2 Ke2 d4 Kd3 d1Q+ Kc4 d3 Kb5 Qe1 Rg4 Bc5 Nh4 Bfe3 Bd8 Qc3 Bfe7 Qb3 Qg2 Nf2 Qe4 Bb6 Qg6 Bec5 Be3 d2 Nd3 Ba7 Bh6 Be3 Bd7 Be4 Bc6 Bf5 Re4 Bac5 Bb7 Q1c2 Kc6 Qd1 Kd7 Qb1 Rbd4 Qb6 Rb4 Rg8 Bc6 Rh8 Bb5 Kb7 Rh7 Rc8 Bc6+ Kb8 Bf6 Bf8 Ke8 Nh1 Rha7 Nf2 Kd7 Bfc5 Bfe7
Br2R3/1n1Br3/BpBbRn2/qRR2bN1/1pN2pkQ/bP2q3/1q6/3KR3 b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 hxg5 e5 cxd5 exf4 b3 Nd7 Ba3 Nb8 Bb4 axb4 a4 Kd7 d4 h5 e4 c5 g4 f5 e5 h4 d6 Ke6 g6 h3 d7 c4 g5 f3 a5 f4 a6 Kf5 e6 h2 g7 c3 d5 c2 d6 c1B g6 b6 a7 Qc7 d8R Be3 e7 Bc1 e8R Qc6 d7 Qb5 Nd2 Qa4 Ba6 Qb5 Nh3 Qc6 Ra5+ Qb5 Nc4 Rh7 Re6 Nc6 Ng5 Kg4 Rde8 Rb8 d8R Ba3 a8B Nf6 g8B Re7 Rd5 Nd8 g7 Nb7 Rc5 Bd7 Qb1 f2+ Kd1 Qa4 Qe4 f1Q+ Qe1 Qf2 Rab5 Qa5 Bh7 Qg1 g8B Qe3 Be4 Bc8 Rf1 h1Q Bc6 Qh2 Bh7 Qg2 Bhe4 Qb2 Bd7 Rh7 Bg2 Bd6 Bgc6 Rf7 Qf2 Re7 Re1 Qe4 Ree5+ Kh5 Bh3 Qe3 Re4 Bf5 Qg3 Bh7 Bhd7 Bf5 Qh2+ Kg4 Re6 Rf7 Qh1 Re7 Qh4+
bq1NNqR1/1R4p1/n3QB2/B2k2N1/1r3n2/4BN1r/P1p2bp1/K2B1nBr b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kf7 d4 e5 Kd2 b5 Kc2 c5 Kb2 g3 h4 e4 f6 c4 f5 g2 d6 e3 d5 b3 h5 b4 d7 e2 h6 e1Q d6 Qee7 h7 Qe4 Qe2 Qf3 Na3 Qb7 Rb1 c3+ Ka1 c2 Nb5 Qe8 d8B Ra3 d7 Ra8 Nc7 Bc5 Be3 Na6 Nf3 Qf8 Ne8 Rb8 Ba5 Ne7 Qe1 Qa7 Be2 Bb7 Bd1 Ba8 Rh4 Bb6 Rc4 Ng6 Rc8 Nf4 Bg1 Bf2 d8B Qd6 Qe6+ Kf8 f7 Rb6 Bf6 Qab8 Bd4 Rb5 Be3 Rb6 Qg6 Ke7 f6+ Ke6 f8B Kd5 Be7 Rb5 Bed8 Qf8 f7 Rb6 Qg4 Rh6 Bf6 Rh3 Bad8 Qfd6 f8N Rh1 Ne6 Qf8 Ba5 Rh3 Neg5 Rh1 Kb2 Rh3 Kc1 b2+ Kd2 b3 Kc3 Rg8 h8N Rh1 Rc1 b1R Nhf7 b2 Nd8 Rgh8 Qd7+ Qbd6 Rb8 R8h6 Qe7 R6h3 Rb7 Qb8 Kb3 Ra1 Ka3 b1N+ Kb2 Nd2 Rb1 Rh5 Be2 Rh7 Rf1 Re1 Bd1 R7h3 Ka1 Re2 Beb6 Re4 Be3 Rd4 Re1 Nf1 Qe6+ Kc5 Bed2 Rb4 Re4 Nh5 Rh4 Nf4 Rh8 Ng6 Rg8 Nf4 Qb6+ Kc4 Be3 Kd5 Qe6+
BN4N1/1r3P1K/1bN3np/1Qrp2Bp/1Rb1qn1k/3NQ1N1/2R5/N4rnq b - - 0 1 illegal: No possible last move, all moves rejected
3QN1N1/BNB2pb1/2q3bb/r2Bn1B1/1RRpN1q1/2p5/PB4rr/K3k1n1 b - - 0 1 illegal: No proof kernel
1Q2n1R1/5pp1/QP2rbr1/3B2Rb/NQQqr2k/2Qn3Q/p2KN3/n3B1q1 b - - 0 1 illegal: No possible last move
2K3b1/Q1n1p1qQ/3kNB2/3Q2r1/N1Q1q1pQ/3p2R1/P2bq1B1/RnrnQ3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 d5 Kf3 Kd7 Kf4 b5 Ke5 g5 h4 g4 f4 d3 c4 d4 f6 b3 f5 d2 c5 b2 c6+ Kc7 h6 d3 h5 b4 f7 b3 f6 Qe8 h7 Qd7 h6 Qe8 Nc3 b1N Na4 b2 Nh3 Na3 Rg1 b1Q Ng5 Qc2 Bg2 Bg7 f8Q Qc4 Qf7 Qf8 Qe1 d1Q Bb2 Nb1 Qd5 Na6 Bd4 Bb7 Ke6 Rc8 f7 Nf6 Bb2 Rg8 h8Q Qf4 h7 Ne4 Bf6 Bh6 Qg7 Qdf3 h8Q Nec3 Qgh7 Qg7 f8Q Nd1 Qe8 Qd4 Qh5 Qf1 Qhh4 Qdf4 Qhf2 Qb4 Qa7 Qe2+ Ne4 Be3 Nec5 Qc4 Qhh4 Qf4 Q8h7 Bd2+ Be4 Qh8 Rg3 Rg5 Nd7 Qg7 Nf8 Be3 Bg2 Bd2+ Qe3 Kb8 Kd7 Qe4 Qed4 Nc7 Ne6 Ba6 Qe3 Bc4 Q1g1 Na8 Nec5 Q4f3 Qde4 Bg8 Qd5 Qe4 Qe1 Rc7+ Kd8 Rb7 Ne6 Rb2 Qec5 Rc2 Qcc4 Rc1 c7+ Ka7 Nac5 Kb6 c8Q Na3 Qcd7 Nb1 Qda4 Nc7 Kc8 Na3 Qd8 Nb1 Qa7+ Kc6 Qdd4 Na6 Qe5 Nc7 Qef5 Kd6 Na4 Q4e3 Qfa5 Qe4 Qad5+
1k2B1N1/1q1Pqbnr/7p/1p1Rpb1Q/4n1R1/2b1R2B/1R3NB1/1RBr1nK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Bb2 Kd7 a4 e5 f4 c5 Kf2 Kc7 g4 b5 d4 h3 a5 h6 f6 b3 d6+ Kb7 d5 h2 a6+ Ka7 f7 c4 g5 c3 f5 c2 g6 c1Q g7 Qc4 f6 Bd7 Ra3 Qg4 Nh3 Qg6 Nd2 Be6 Ne4 Nc6 Qh5 Kb8 a7+ Kb7 Ra4 Be7 f8R Qb8 f7 Qh7 Nf6 Qb1 Rg4 Qh7 Rc8 Nd8 Rc3 Qc8 f8R Qc7 Ba3 b2 Re3 b1B Bb2 Rc8 a8B+ Kb8 Bc6 Qa7 Be8 Rc1 Bg2 Qb7 Rd1 h1N+ Kg1 Bg6 Rf7 Bf8 Rd7 Bb1 Nf2 Bbf5 Rc7 Be7 Rc2 Ng3 Bh3 Nf1 Rce2 Rc5 Rb1 Rc1 Bg2 Re1 Bc1 Rd1 Reb2 Bf8 d7 Bb4 d6 Ba2 Bh3 Ne6 d8R+ Ka7 d7 Bc3 Rc8 Bb3 Nd5 Nf6 g8B Qe7 Rc5 Ng7 Bgf7 Kb8 Bg8 Qe6 Ne7 Rh7 Bgf7 Qd6 Ng8 Qe7 Bd5 Bc4 Bh1 Ne4 B1g2 Bf7 Rd5
6k1/2pb2R1/1pr3Br/3nr1br/2PBnN1p/1Nq5/BN1r1Q1N/1BR1B1K1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 f5 exf5 e5 dxe5 axb4 g4 Kf7 a4 d5 f4 h5 Kf2 h3 a5 h4 g5 h2 f6 b3 g6+ Ke6 f5+ Kd7 a6 Ke8 e6 d4 a7 b2 g7 d3 e7 Kf7 Nf3 d2 Qe1 d1R Be3 Qd4 Nbd2 b1R Bd3 Rh5 Rg1 h1R Nb3 Qd7 Nh2 Nc6 Bd4 Rb2 Rc1 Nh6 g8B+ Ke8 Rg7 Nb4 Qd2 Rb8 a8N Rhe1 Nb6 Qc6 Nc4 b6 c3 Re6 Bb1 Rc2 Nb2 Re5 Qe2 Rdd2 Kg1 Bd7 Qf2 Ng4 Be6 Bc8 Bg8 Nd5 f7+ Kd7 e8B+ Ke7 f6+ Ke6 Nc4 Bd7 Nb2 Be7 f8N+ Kd6 f7 Ngf6 Rg2 Ne4 Rg7 Bg5 Ng6 Ke6 Nf4+ Kf6 f8B Ra8 Qe2 Rh6 Bb4 Ra5 Qf2 Qc4 Re7 Rb5 Bef7 Kg7 Bg6+ Kh8 Be6 Rc5 Rg7 Rc6 Nd1 Ra2 Nb2 Ra5 Bef5 Qd3 c4 Qc3 Ba2 Rb5 Bh3 Rbc5 Bf1 Ra5 Bd3 Rb5 Bdb1 Rbc5 Rh7+ Kg8 Rg7+ Kf8 Ba3 Re2 Bb4 Rf5 Ba5 Bd8 Bb4 Qd2 Rd1 Ndf6 Qg3 Rfh5 Rf7+ Kg8 Bbc3 Rce5 Rh7 Nd5 Qf2 Bg5 Rc1 Qe3 Bd2 Qc3 Be1 Rd2 Rg7+
1r2n3/pR1R2rk/2NpN3/2bPB1b1/2K4R/2NB1b1N/pQRbNn2/bq6 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 exf5 h5 g4 hxg4 a4 bxa4 Ke2 Kf7 Kd3 e5 c4 g5 f4 Kg7 h4 d6 f6+ Kh7 h5 g3 h6 g2 f5 a3 f7 a2 f6 g4 c6 g3 c7 Bb7 c8R Kg6 c5 e4+ Kc4 e3 d4 e2 c6 e1B d5 Bf2 c7 Ne7 h7 Nec6 Qb3 Rg8 h8R Rg7 Ne2 g1B R8h4 g2 Re4 Bh4 Bb2 Bd4 Nbc3 g1B Rb1 Bg5 Rh7 Nb4 Ba1 Bd2 Qb2 Be7 f8N+ Kg5 f7 Nd7 Ng3 Rb8 Ne6+ Kg6 Nge2 Nd3 Ng5 Nf6 Nh3 Ne8 f8N+ Kf5 Qb6 Beg5 Ne6 Kg6 Qb3 Nf2 Qb2 Rg8 Rd7 Rg7 Rc1 Kh7 Rc2 Qf6 Rcd8 Qf7 c8N Qf5 Ne7 Bc8 Nc6 Qg6 Rb7 Be5 N6f4 Bg4 Rdd7 Bf3 Ne6 Bd4 Nc1 Bc5 Be2 Bh2 Bd3 Be5 N1e2 Qh6 Nhg1 Qh1 Nh3 Qb1 Qb5 Nc7 Nd1 Bec3 Qb3 Ba5 Be5 Bac3 Qb6 Ba1 Ndc3 Ne8 Qb4 Bd4 Qb2 Bc5 Rh4+
rBQRK2R/pPr4B/B3n1p1/3R2p1/1b6/1kNq1r1r/N1b1B1nr/2BR4 b - - 0 1 legal: proof: f4 b5 g4 e5 fxe5 c5 a4 h6 d4 cxd4 g5 hxg5 axb5 Bd6 Bf4 Ba3 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 f6 c4 d3 b4 d6 h4 d2 h5 Ne7 b6 Na6 h6 Nf5 b5 Rh7 b7 Nc7 b8B Be7 c5 Qh8 b6 Nd5 c6 Bf8 c7 Nh4 Ra5 Ng2 Qc2 d1R Nc3 Rd3 Na2 Ndf4 Rd5 Rh3 b7 Bd7 c8R Ba4 Rd8 f5+ Kd4 Rh2 e4 g6 Be2 Re7 h7 Rc7 Qc5 Qf6 h8R Bc2 Ba6 Qf7 Ne2 Qd7 Rd1 Qb5 Nec3 Qb1 Qc4 Be7 Rb5+ d5 Ra5 Bb4 Rb5 Ke7 e6 Qb3 Ke5 d4 Qc6 d3 Rbd5 d2 Qc4 Rd7 Qc8 Rc7 Kd4 Kf6 e7 Kf7 Ke5 Ne6 Be2 f4 e8B+ Ke7 Bd7 f3 Bdb5 f2 Ba6 f1R Rh3 Rc5 Rhh8 Kf7 Kd6 Rf3 Kd7 Kf6 Rh7 Rc7+ Ke8 Qc4 Rh3 Qd3 e5+ Kf5 Rh8 Rhh3 Rh1 d1R Rf1 Rd2 Rg1 Kf4 Rd1 Nd4 e6 Ke3 e7 Ne6 Rf5 Bd6 Re5+ Kd4 Rb5 Kc4 Rc5+ Kb3 Rd5 Nef4 Kf7 Rc4 e8B Rc7+ Bd7 Bb4 Ke8 Rh6 Be6 Rhh3 Bg8 Ne6 Bf1 Nh4 Bh7 Rdh2 Be2 Ng2 R5d6 Qd5 R6d7 Qd3 Rd5
2bQ4/2N2nRr/Q2b1p2/3bNB2/KR3bpN/2NpBN2/k1P1n3/3N1rnq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 h4 Kd6 b4 Kd5 e4+ Ke5 b6 a5 b7 d5 h6 g5 h5 a4 h7 f6 h6 g4 b5 f3 b6 d3 Kc3 a3 Kb3 Kd4 e5 d2 e6 f2 e7 a2 e8N Ra4 Nh3 Bg7 Nc7 Nc6 b8N Ne5 b7 Nf3 Qe2 d1N Qa6 Ng1 Nc3 Bf8 Rb1 a1B Bd3 f1B Nf2 Bg2 Nd7 Bd6 b8N Qe7 Bg6 Qe1 Ne5 Bb2 Nbd7 Ra1 Bg5 Bc1 Bf5 Bf4 Rb2 Rc1 Ka4 Qf1 Rb5 Rb1 Nf3+ Kc4 Ne1 d4 Nf3 d3 Rh3 Bh2 Be3 Bhf4 Rh5 Rc1 Rg5 Qe1 Nd4 Bd5 Nf3 Qf1 Rg7 Qh3 Nf8 Qh1 Ng6 Rb1 Ngh4 Rc1 Nce4 Rb1 Nc5 Kc3 Rb4 Rb3 Nce4+ Kb2 Nc3 Ka1 Be6 Rb1 Bd7 Ne7 Bf5 Ng6 Re7 Ne5 Rg7 Re8 h8N Re7 h7 Nf7 N8g6 Rc1 Ne2 Ka2 h8Q Rb1 Nge5 Nc3+ Ka5 Ra1 Qd8 Rf1 Nd1 Rd7 Ng3 Nce2 Ka4 Nh6 Ne4 Rf7 Rg8 Rh7 Rg7 Nf7 Nec3+
1bQ1Bk1N/2B4p/b1r1p3/q1PBK3/1bp1n2Q/R3B3/1BRn3B/r1rN2b1 b - - 0 1 illegal: No proof kernel
3RN2N/RKn1r1Pk/Q1RRb3/R4q2/Bbr1bB1R/2p2p1Q/6p1/4b1rn b - - 0 1 illegal: No proof kernel
2b3K1/RNB2p1r/r1p1nQR1/1B1r2q1/P5QB/2Bbp3/3B1n2/b3NkbB b - - 0 1 illegal: No proof kernel
1k3B2/4pp1n/Q1n1b1R1/1K1bnP2/pb2n2N/RrBrQ3/1Q1N1Q1Q/3q2Q1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 h5 gxh5 c6 b4 Na6 b6 Qd7 b5 Qd5 b7 Nb8 b6 Qd8 Bb5 cxb5 Ke2 Kd7 f4 a5 c4 g5 h4 a4 d4 g4 d5 g3 h6 g2 f5 b4 d6 e3 Kd3 e2 h7 b3 h5 b2 h6 Qe8 c5 e1N+ Kc4 Ra7 c6+ Kd8 c7+ Kd7 Ra3 Ra6 Nd2 b1B Kb5 Ra7 Ngf3 g1N Nh4 Ne2 Rg1 Qd8 Rg6 Nf3 Qg1 Nc6 b8Q Ng3 b7 Be4 Qf2 Ra6 Qba7 Bg7 b8Q Bd5 Qae3 Nf6 Qbb6 Re8 h8B Nge4 h7 Nfe5 Bb2 Ra8 Bc3 Rb8 Qh2 Bh6 Bg7 Rf8 h8Q Nh7 Qeg1 Be3 Qhf2 Bc5 Bh6 Rg8 Bf8 Bb4 Qf6 Rg7 Qfg5 Rb7 Qge3 Rg8 Rf6 Rg3 Rg6 Ke8 Qgh2 Bce6 c8Q Rb8 Qa6 Kd7 Qfg1 Rh3 Qef2 Rd3 Qe3 Rb7 Qhf2 Kc8 d7+ Kb8 Qgh2 Qc7 d8Q+ Qc8 Qd7 Qc7 Qhg1 Qd8 Qd6+ Qc7 Qef3 Bc5 Ba1 Nd7 Qdh2 Nde5 Q3e3 Nd8 Ka5 Bd6 Qg4 Qc1 Bd4 Qd1 Qb2 Rbb3 Qgg1 Bb4+ Kb5 Nc6 Bc3
n7/3B1Q2/N5bN/1qBr1RRq/1q1PK3/kNp2p2/N1rbnpR1/3RR1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 h5 e4 c5 g4 f5 d3 a5 b6 c4 b5 Kc5 d6 Kb4 d7 a4 e5 h3 d4 h2 e6 h4 e7 h3 e8N a3 b7 c3 g5 a2 g6 Rh5 g7 Na6 b8N Qa5 d8R Ne7 g8R Nd5 b6 Qb5 b7 Bh6 Ng7 Nac7 Rdf8 Ra5 Bg2 Na8 Nd2 Rg5 Bf1 Rg2 Nb3 Rc2 Ne2 Be6 Qd3 Bf7 Na6+ Ka4 b8R Bg6 Rg1 h1Q+ Rg2 h2 Rbe8 Qg1 Ba3 h1Q Rd1 a1Q Bc5 Qa3 Qc4+ Qab4 Nec1 Ka3 Na2 Bg5 Ree1 Qh6 Ne8 Qh8 Nf6 Qh5+ Ng4 Bh6 Rgd2 Bg5 Bh3 Bh6 Ke2 f3+ Kd3 f4+ Rf5 Bg5 Rh2 f2 Ke4 f3 Rg2 Nf4 Qf7 Ne2 Nh6 Bd2 Rg7 Bh7 R7g5 Bg6 Bg4 Qc4 Ba7 Rd5 Bc5 Qb5 Bh3 Bh7 Bg4 Bg8 Re5 Bh7+ Bf5 Bg8 Be6 Bh7+ Ref5 Bg6 Bd7
k1q2B2/1r2R1rq/1q1B2N1/2Rp2BB/1nP1b3/qpQ3n1/1bRN1Rp1/4K1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 f4 g5 c4 d5 h4 Kd7 a4 Kc6 h6 e5 f6 b5 a5 Kb7 h5 e4 f5 g4 f7 e3 f6 g3 h7 d3 h6 b3 Qg4 b2 Qf3 g2 Nd2 b1Q Ra2 b4 Ne2 b3 Nf4 e2 Rc2 Ra7 a6+ Ka8 Ng6 Bg7 f8R Ne7 f7 Rg8 h8B Bb2 h7 Rb7 a7 Qb6 Bd4 Nbc6 h8B Nb4 Rh7 Rg7 Bg1 Nf5 Qe3 Qa2 Qd4 Ng3 Qc3 Rg8 Be5 Rg7 Bf4 Qa3 Bb8 Bf5 Bd6+ Rb8 Rc8 Be4 Rc5 Rb7 f8B Qa2 Nf3 Qa3 Bg5 d2+ Kf2 d1Q Nd2 Rgc7 Rf7 Qb1 Re7 Bc1 Ke1 Bb2+ Rc1 Qd3 Rc2 Rd7 Re6 Rf7 Re7 Rg7 Nf3 Ba1 Rb2 Bf5 Kf2 Qa4 Nh8 Qd7 Rd2 Qc8 Ra2 Qe4 Rd2 Qh4 Ng6 Qh7 Rb2 Be4 Ra2 Rd7 Rb2 Kb7 a8R Rc7 Raa2 Kb8 Rd2 Kb7 Rab2 Ka8 Ra2+ Qca6 Rac2 Qa3 Rd3 Rd7 Nd2 Bb2 Rf3 Ra7 Ke3 Rb7 Rf2 e1Q+ Be2 Qd1 Bh5 Qg4 Be5 Bd3 Bd6 Qc8 Kf3 Be4+ Ke3 Nf5+ Ke2 Ng3+ Ke1
6B1/1KBBN3/1R5b/bRpNnNq1/3rb2B/BQnk1Ppr/q1N1b2p/8 b - - 0 1 illegal: No proof kernel
1B3N2/2N1q2R/4rqrn/2pKb2B/bppQ1k2/5NqP/N1Q2q1N/4Rn1N b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 gxh5 dxc4 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 d4+ Kh4 a4 g5 f4 b5 a5 e5 h6 c5 h7 b3 f6 b4 a6 g4 a7 b2 f5 g3 d5 g2 f7 Qa5 f6 Bd7 d6 Ba4 d7 Na6 d8Q Qb5 Kd5 e4 Ne2 Kg4 Bf4 g1Q Qc2 e3 Bb8 Qa5 Nbc3 b1Q Ng3 e2 Na2 e1Q Be2+ Kg5 Bh5 Bd6 f8N Qb3 f7+ Kf4 Nd7 Qgf2 f8N Be5 Nf6 Nh6 Ng4 Rg8 h8N Rg6 Nf7 Qb6 Ng5 Qf6 Nf3 Qbe3 h3 Qeg1 Ngh2 Qee2 Nf5 Qgg3 Rhe1 Qee3 Bc7 Rb8 a8N Rb6 Bb8 Re6 Nc7 Qgg5 Ng1 Qeg3 Ngf3 Qe7 Rad1 Qgf6 Qd6 Qgh4 Ng3 Qg4 Nh1 Qgg3 Nb5 Nc7+ Kc6 Ne8 Kd5 Ng7 Nc7 Ngf5 Rd2 Qe3 Rg2 Qgf2 Qd7 Ng3 Qd6 Nf1 Rg1 Rg8 Rg7 Qg3 Rh7 Rg6 Qc6 Qef2 Qa8 Bb5 Qa3 Be8 Qac3 Ba4 Qd4+
1b3nq1/3r1NB1/1KPn1Rpn/1B1Rp2Q/2r1k2B/p2R2Nb/7q/1nR1RB2 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 f4+ Kf5 h4 e5 b4 a5 c6 g6 b6 d5+ Kb5 d4 c4 d3 b7 a4 h5 a3 c5 g3 h6 d2 h7 g2 c7 e3 c6 e2 Nf3 g1Q Ng5 e1N Nc3 Qh2 Ne2 Qf2 Nf7 Qfh4 Kb6 Qd3 b5 Na6 b8R Ke4 f5 Nf3 f6 Bd7 c8B Nc7 Ba6 Qb3 Rd8 Bh3 Rd3 Nh6 Rb1 Rg8 h8B Bd6 Bg7 Rgd8 Rd5 Qc4 Rb3 Rd7 Rbd3 Rad8 R5d4+ Kf5 Ng5 Rf8 f7 Rg8 f8R+ Nf7 Nf4 Qd5 Bg2 Qf2 Ka7 Nh4 b6 Qg3 b7 Rh8 b8R Qh2 Rb1 Ne6+ Kb6 Bb8 Re1 Rh7 Qe2 d1N Bf1 Nc3 Bb5 Rh6 Be3 Qb3 Rbc1 Nb1 Bf2 Rh8 Re8 Nf8 Re6 Rh5 Red6 Nh6 Bg3 Qf7 R4d5 Qg8 Nf7 Rg5 Qf3 Rg4 Ne2+ Rf4 Qe3 Rc4 Qg5+ Ke4 Qh5 N4f5 Rf6 Nd6 Bf2 Nc3 Bh4 Nb1 Ng3#
B3R1rk/bB3pp1/1BQ4n/BrqqbPQR/2bB3N/8/4n2p/1N1KB1b1 b - - 0 1 illegal: No proof kernel
rQ6/n1qpr3/p4Kp1/3P1b1b/B1r1N1R1/5NB1/1kNNrQNR/3q2Nn b - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 Bc5 a5 Bb6 axb6 hxg4 Na3 Qe7 Nb1 Qd8 Kf2 Ke7 d4 Ke6 e4 f5 h4 c5 d5+ Ke5 b7 c4 b6 g3+ Kf3 a6 h5 c3 h6 g2 h7 c2 b5 Nh6 Ra4 Qh4 Qe1 Qd8 Rh2 Nc6 b8N Bb7 Qf2 Qc7 Nd2 Re8 h8N Na7 Rb4 Bc6 b7 Re7 b6 Ba4 Bb5 Bb3 Ba4 Ng4 Ba3 c1R Ng6+ Kd6 Bb2 Rc4 Nh4 g6 Nc6 Bc2 Nd4 Kc5 b8Q Bb1 e5 Bc2 Nh3 g1R e6 Re1 b7 Re2 Ng1 Bd1 Ng2 Bc2 Qf1 Nf2 Bc3 Nh1 Qf2 Rf7 e7 Rh7 e8N Rhe7 Rb1 Bd1 Bb2 Kb4 Nd6 Bc2 Bc3+ Ka3 N6e4 Ka2 Re1 Bb1 Bb4 Kb2 Bd6 Ba2 Nc3 R2e6 Qh4 Rc6 Qbh8 Rc4 Re4 Bb1 Qc8 Re5 b8N R5e6 Nbc6 Re5 Ke2 f3+ Ke3 f2 Kf4 f1B Kg5 Be2 Kf6 Bh5 Rg4 Re2 Nb4 Be4 Qb8 f4 N2b3 Bf5 Nbc2 f3 Qe1 f2 Ndf3 f1Q Nbd2+ Qb6 Qf2 Qd1 Nce4 Qb7 Bg3 Qb6+ Bc6 Qb7 Bb5 Qc7 Ba4+
qB1kRnB1/1pr3Bp/1b6/3bR1bq/Q4B2/2R1p1B1/n1R1rP1b/2N2KN1 b - - 0 1 illegal: No proof kernel
B5nN/p4R1N/N2rbB2/Nnn2N2/P2pQ3/1krnpR1K/2qq2NQ/b7 b - - 0 1 legal: proof: e4 c5 d4 e5 h4 g5 dxe5 gxh4 b4 f5 bxc5 fxe4 g4 Kf7 c4 Ke6 a4 d5 f4 b5 Kf2 h5 Kg2 e3 g5 b4 g6 b3 g7 b2 f5+ Kd7 c6+ Ke7 e6 Kd6 e7 Kc5 e8N Kb4 c7 Bd6 c5 Bf8 c6 Rh6 f6 Rh8 f7 Bb7 c8Q Na6 c7 Nf6 g8N Ne4 Nh3 Nac5 Qb8 Nf6 c8N Rh6 Qd3 Bg7 Nd2 b1N f8N Na3 Qh2 Nb5 Ncd6 Bc8 Nf5 Be6 Nc4 Rc8 Nge7 Ng8 Qe4 Kb3 Nf4 h3+ Kg3 Bh8 Bg2 h4+ Kg4 Qa5 Neg6 Qd2 Nh7 Bf6 Ra2 Ba1 Nc7 d4 Rf1 Qc2 Na6 Rc6 Rf3 Rd6 Qg3 h2 Kh3 h1Q+ Qh2 Qhd1 Nh8 Qdd2 Ba3 Rf6 Bb4 Rf8 Ba5 Rc8 Bd8 Rc7 Bf6 Rcc6 Kg4 h3 Bh1 Rc8 Ng2 Rc7 Qg3 h2 Kh3 Bc3 Ra1 Rc8 Raf1 Ba1 Ne1 Rc7 Bg2 h1N Na5+ Kb2 Qh2 Nf2+ Kg3 Nfd3 Kh3 Nb7 Bh1 Rc3 Ng2 Nbc5 Rg3 Nc7 Rff3 Nb5 Rg7 Ka3 Rf7 Qf2 Ne1 Qd1 Qg4 Qb1 Rf4 Qb3 Ba8 Qd2 Ng2 Qbc2 Rf3 Kb2 Qe4 Ka2 Nc6 Kb3 Na5+
1Q1nn3/rpBR1rr1/2R4N/k1p3BR/q3B3/RP3b1p/Nq1Rqn1K/3B4 b - - 0 1 illegal: No proof kernel
1qQ2k2/1Q1pN3/QNbbb3/1r1p2Kn/1rQ1b1R1/p2R1BQ1/P7/Q2rB2b b - - 0 1 legal: proof: d4 c5 f4 g5 b4 e6 d5 exd5 bxc5 Qe7 Nd2 Qf6 Nb1 Qd8 h4 gxf4 g4 Qf6 g5 Nc6 h5 Nce7 Nd2 Ng6 hxg6 Qb6 Nb1 Qd8 Kf2 f5 Kf3 h5 c4 b5 e4 a5 c6 h4 c7 b4 c5 b3 g7 b2 e5 a4 g6 h3 c6 h2 e6 a3 e7 Ra4 Be2 Re4 Nc3 b1R Na4 Rh7 Nh3 Re6 Nb6 Nf6 g8Q Rh5 g7 Ba6 c8Q Rb5 c7 Bb7 Bd2 Bc6 Qb7 Qb8 Rg1 Re4 Be1 Reb4 Qe6 h1B+ Rg2 Rg5 g8Q Nh5 Qc2 Rg4 Qc4 Rb1 Qg7 Rd1 Rc1 Rh4 Rc3 Rg4 Rd3 Rh4 Kf2 f3 Ke3 f2 Qa1 f1B Rg4 Bfg2 Nf4 Be4 Qh6 Kf7 Ng6 Kg8 c8Q f4+ Kd4 f3 Ke3 f2 e8Q f1B Bf3 Bh3 Qee5 Kf7 Qg3 Bb4 Ne7 Bd6 Rg5 Bhf5 Rg4 Be6 Qae5 Nf6 Kf4 Nh5+ Kg5 Qc7 Qca8 Qb8 Qg6+ Kf8 Qa1 Rh2 Qaa6 Rhb2 Qh7 R2b4 Qhh8+ Kf7 Qhc3 Kf8 Qce5 Bc5 Qec7 Bd6 Qcc8+
Rq2BN1Q/r2pbb2/bB2p3/1N1P4/q2b1R2/p2N1N2/1Q2K1nb/knNN4 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 f5 e4 fxe4 a4 g5 h4 gxh4 b6 Ra7 b5 Ra6 b7 Rg6 b6 Rg5 Qc2 Rf5 Qd1 Rb5 axb5 a4 g4 Kf7 d4 Ke6 f4 Kd5 g5 c5 f5 h5 g6 h3 g7 c4 f6 e3 f7 h4 Qc2 c3 Nf3 a3 Qh7 c2 Rg1 h2 Rg6 h1Q Nbd2 h3 Nb3 e2 Be3 Kc4 Nc1 Nf6 g8N Kc3 Nh6 Kb2 Ng4 h2 Nf2 Nd5 Rg8 Nc6 b8N Ba6 b7 Na7 b6 Nb5 Nc6 Qb8 Na7 Nbc3 Nb5 Nf4 d5 e6 Bd4 Be7 f8N Ng2+ Kd2 e1B+ Kd3 Bb4 Be2 Be7 Qg7 Rh4 Qh8 Re4 Bc5 Ra4 Ra2+ Kb1 Nd1 Bf2 Rb2+ Ka1 Rb4 Qg1 Rf4 h1B Kd2 Bd4 Kd3 Qe5 b8Q Nb1 b7 Qf2 Bb6 Qh4 Qa7 Qg4 b8N Ra5 Nc6 Qb8 Nce5 Ra4 Na2 c1B Qb7 Bce3 Nc1 Bg1 Ng5 Qh4 Bh5 Bh2 Ke2 Ra5 Ned3 Ra4 Be8 Ra5 Ne3 Qg4+ Kf2 Qd1 Nf3 Qa4 Kf1 Bb2 Qc7 Nh4 Bf7 Qa7 Nd2 Bb7 Qc2 Bd4 Ke2 Be4 Nd1 Ng2 Nf3 Bg6 Nh7 Qa8 Rc8 Ra7 Be8 Bf7 Nf8 Ba6 Rb8 Qb7 Ra8 Qb8 Qb2+
3bK1k1/Q5p1/1r1BB1Pr/pNpB1bR1/nqBR1B1r/1bB5/3NQ2b/5q2 b - - 0 1 illegal: No possible last move, all moves rejected
qnR2N1K/np1Qb2N/r3N2N/N1p1r1pR/1rP1n1k1/B2B1q1R/4r3/3R4 b - - 0 1 legal: proof: g4 e5 d4 a5 dxe5 g5 h4 d6 b4 axb4 h5 f6 Rh2 Bf5 Rh1 Bg6 hxg6 f5 Rh3 fxg4 Rh2 Qf6 Rh1 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 e4+ Ke6 f4 h5 c4 b3 a4 d5 a5 g3 a6 b2 a7 h4 f5+ Ke7 g7 g2 f6+ Ke6 f7 c6 Nh3 g1R Nd2 b1R Ba3 Qa5 Nb3 Qa6 Rh2 Rh5 Na5 Ne7 g8N Nd7 Qa4 Rc8 a8R Re8 Be2 Rb4 Rc8 Nb8 Re1 Rg2 Nf4+ Kd7 Ra1 h3 e6+ Kd6 Rb1 Rh6 Qd1 Rf6 Nh6 Qa8 Rb3 Rg6 Rh1 h2 Bf1 Ng8 e7 Nf6 e5+ Kd7 e6+ Kd6 Ke3 Ke5 Kf3 d4 Qd3 Bg7 f8N c5 Qd1 d3 Qd2 Ne4 Qd1 Rf2+ Kg4 Nc3 Qd2 Rg2+ Kh5 Nb5 Qd1 d2 Qg4 Rd8 Qd1 Rd3 e8N Rd5 e7 Ra6 Nf6 Na7 N6h7 Bf6 Kg6 Rf2 Qg4 d1N Qd7 Nc3 Kf7 Ke4 Kg8 Kf3 e8R Kg3 Re4 Re5 Rd4 Be7 Rd1 Kh4 Kh8 Ne4 Re3 Rg2 Bd3 Re2 N4e6 Kh5 Rhe1 h1Q Rf3 Qh3 Rh1 Kh4 Rf4+ Kg3 Rh4 Qg2 Rh5 Qf3 Nf7 Kg4 R1h2 Qg3 R2h3 Qf3 Nh6#
1Q1RN2k/1n1Kb1n1/8/QQQp2Np/2nr3R/B2PQqn1/rp2q3/2qBQ3 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 Ke2 Kf7 Ke3 Kg7 Kd4 e5+ Kd5 c5 a4 h5 g4 d6 Ke6 e4 f4 b2 b6 e3 a5 c4 a6 d5 f6+ Kh7 f7 b3 f5 h3 f6 c3 a7 e2 d3 e1N g5 h2 b7 c2 Be2 Bg7 f8Q Qe8+ Qe7 Qf8 f7 Nf3 Na3 b1Q Nb5 Nf6 Nd6 Qa2 Ba3 c1Q Nh3 Rg8 g6+ Kh8 Qe1 Nd2 Bd1 Nc6 b8Q Ne8 Qb5 Bf6 Kd7 Na5 Ng5 Nb7 Q7e3 Ng7 Ne8 Nc4 Rb1 Qe2 Ra1 Qb4 f8Q b2 Qfc5 Be7 Ra2 Qbc3 Ra1 Qf6 Ra2 Rb8 a8Q Qff3 Qaa4 Ra8 Qaa5 Rf8 Ra1 Rf4 Ra2 Ne6 Ra1 Rd4 g7+ Kg8 Rg1 h1N Rg4 Ra6 Rh4 Ng3 Nh7 Kf7 Ng5+ Kg6 g8Q+ Ng7 Qf8 Kh6 Qff4 Ra7 Qb8 Kg6 Nh3 Kh7 Ng5+ Kh8 Rb1 Qcd2 Rc1 Ra8 Rc3 Qc1 Rc2 Qeg2 Rf2 Qe2 Rf6 Qgf3 Rd6 Re4 Qad8 Qb1 Kc7 Qh1 Bb4 Ra2 Ba3 Rd4 Kc8 Qe4 Qda5 Q4f3 Rd8 Qc1 Kd7
3bb2K/Q2B1k2/nnR1p1b1/brBQ4/2Qp1N2/3Pn3/3pQ3/N1Qb1RrQ b - - 0 1 illegal: No proof kernel
2n5/1pN2K1n/N1pR1n2/rQ3bBR/3p3Q/kr1PBrq1/3n2BB/B3rB2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c3 gxh4 c4 d5 c5 Bh6 Bb2 Bf4 Bc1 Bd6 cxd6 Kf8 Rh2 Kf7 Rh1 Ke8 Ke2 Kd7 Kf3 Kc6 Kg4 Kc5 Kh5 e5 a4 h6 Kg6 c6 f4 e4 g4 h3 g5 h5 a5 e3 d7 e2 a6 e1R a7 h4 f6 h2 f7 h3 f8B+ Qe7 d8B b3 f5 Kb4 f6 b2 f7 Nd7 Qb3+ Kc5 Nf3 Ndf6 Na3 b1R Nb5 Re3 Ne1 Nh6 Bg7 Re8 f8B Nhg4 Nc2 Rf3 Nc7 Qd6 Kf7 Bf5 g6 Nh7 Nb4 Re1 Bg5 Ngf6 d3 Rb2 Ra4 Rb1 Bh8 Rb2 Bfh6 Qg3 g7 Rb1 g8B Rb2 Rg1 h1N Bcf4 Nf2 Rh1 h2 B8g7 N2e4 Ra5+ Kd4 Nba6 Nd2 Qb5 Kc3 Ra4 Kc2 Rd4 Rb3 Bh8 Kb2 Be3 Rb8 a8Q Ka3 Bef4 Rbe8 Qd8 R8e5 Be3 Nd7 Bgf4 Nb6 Qh4 Nc8 Bhg5 Rb2 Rg1 h1N Bg7 Nf2 Rh1 Rb3 Rh3 Qg1 Bh2 Nfe4 B7f6 Qg3 Bh8 Nf8 Bh7 Nf6 Bg7 Bg4 Be4 N8h7 Bh8 Bf5 Bg7 Rf4 Beg2 Rf3 Re4 Re8 Re6 Ra1 Rd6 Re4 Bd4 Ree1 B7h6 Ra2 Ba1 d4 Be3 Rc2 Bhg5 Rc5 Qf4 Rd5 Rh5 Re5 Qh4 Rc5 Qb6 Ra5 Qb5
B7/2b1QR2/1r2rppB/P1Rpb2r/KN2RBRp/1n3n1b/1q2k3/1N2B1R1 b - - 0 1 illegal: No proof kernel
2N1BR1R/BkB1rQ2/1qp2B2/6p1/KRb2n1P/1r2n1n1/pbNpR3/2r1R3 b - - 0 1 illegal: No proof kernel
3n1br1/pr1P4/N1R2B2/3q2pK/3p4/B1NbkpRn/nBB1NN1Q/1Nr5 b - - 0 1 illegal: No proof kernel
2rrRBR1/bR1b4/2p5/n3R1n1/1q1k1R2/QR2q2q/p1P1ppN1/K1QNB3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 e4 dxe4 Be2 Qd7 fxg5 Bb7 g6 Bc8 g5 Qd8 Bg4 hxg4 d4 Kd7 Kd2 Ke6 Kc3 Kd5 h4 f5 b4 e5 Kb2 a5 h5 e3 b6 e2 b7 e1Q h6 e4 g7 g3 b5 f4 b6 f3 h7 e3 g6 c6 Rh4 a4 Ne2 g2 Bd2 g1Q Rf4 f2 Qc1 Nd7 b8R Bd6 b7 Be7 Nbc3+ Kc4 d5+ Kc5 d6 Qh1 Nd1 Nb6 d7 Nh6 g8R Qh2 g7 Nf7 Re8 Ng5 g8R a3+ Ka2 Qc7 d8Q Qe5 Qd3 Nc4 Rb1 Bf8 Rb3 Na5 Re7 Bg4 Rbe8 Bd7 b8R Qh3 R8b7 Rc8 Bc3 Qd2 Ka1 a2 Qa6 Qed6 Ree4 Q2d3 Be1 Kd5 Qa8 Qb4 Qa7 Bc5 Qa6 Nc4 Qaa3 Na5 R4e7 Qde4 Re5+ Kc4 Rf7 Qef3 Nf4 e2 Ng2 Ba7 Rf4+ Qe4 Rg6 Rg8 h8B Kd4 Bf6 Rf8 Rg8 Rd8 Bg7 Rc8 R8e6 Rfe8 Bf8 Red8 Rff5 Qef3 Re8 Qe3 Rf4+
8/nRP1R3/3pRn1p/QNkBB1qb/3n1pR1/b3p2B/4NBq1/K1B1r2r b - - 0 1 illegal: No proof kernel
1qR1N3/rp1r1N1p/1B1QR3/1nq1N2N/4k2n/bK1Bp2B/4P1pn/1N1B1b2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 f5 g4 Ra4 g6 Ra8 g5 Ra4 Qb3 Ra6 Qg3 Ra8 Qg4 fxg4 Kd1 Kd7 Kc2 Kd6 d4 c5 f4 e5 a4 e4 g7 g3 g6 c4 a5 c3 a6 Qc7 f5 Bd7 f6 Bc8 f7 Qc6 a7 Na6 Rh6 Be6 Be3 Qc5 Nh3 Re8 a8N Bg4 Kb3 c2 Nf4 c1Q Bh3 Qa7 Nc7 Re7 Nh5 Nf6 g8B Bf5 g7 Rd7 Ra3 Be7 f8N Qb8 Ng6 Qc5 Ne5 Bf8 Be6 Ng4 g8B Nh2 Ra2 Bg4 Rc2 Bf3 Bg1 Bg2 Rf6 Bf1 Ne8+ Ke7 Bef5 g2 Rg6 Nc7 d6+ Kd8 d5 Nb5 Bd4 e3 Re6 Kc8 Bd3 Kd8 Bc4 Be7 Ka4 b3 Rc3 b2 Kb3 Qcc7 Ba7 Qc5 Bb6+ Kc8 Bf7 Rf8 Bg6 Rf4 Bc2 Rf6 Na3 b1N Bd1 Bf8 Kb2 Nd2 Nb1 Ndf3 Kb3 Nh4 Rc2 Rc7 d7+ Kd8 Rc6 Ke7 d8N Rg6 Ndf7 Rd7 Rc8 Rg5 Ra2 Rg8 Ra6 Rg6 Bd3 Rg4 d6+ Ke6 Bc4+ Kf5 Ra1 Re7 d7 Ke4 d8Q Rd7 Ra2 Rg6 Rd2 Rc6 Rd6 Be7 Re6 Bd6 Bc7 Ra6 Bb6 Ra7 Qe7 Qc6 Qf8 Ba3 Qd6 Qc5 Bd3#
1QNRn3/1pN1Pq1r/1n2R3/pK2NBp1/1pNRn3/7k/2Nq3r/1bR1b1B1 b - - 0 1 illegal: No proof kernel
BBN3nR/5q2/4Q1n1/Bp1BNb1b/2N1r1pN/R2p2nn/2kP2p1/K1N4r b - - 0 1 legal: proof: e4 h5 g4 hxg4 c4 a5 b4 f5 exf5 e6 Ne2 Bc5 Ng1 Bb6 c5 axb4 Ba3 b3 Bc1 Ba5 Qf3 b5 Qd1 Bb6 cxb6 Ra3 Bd3 Ra4 Bf1 Ra8 f4 Ke7 a4 Kf6 h4 g5 b7 d5 h5 c5 h6 b2 a5 g3 a6 e5 h7 d4 a7 g4 Na3 b1B Qe2 c4 Kd1 d3 Bb2 c3 Kc1 e4 Nc4 e3 Bg2 Nd7 b8B Qe7 Ra3 Ba2 Bd5 g2 Rh5 Bb3 Kb1 Nf8 Ka1 Qf7 Rh4 Ke7 f6+ Kd7 f5 c2 Rh5 c1N Bc3 Ng6 Ba5 Ba2 Qe1 Ne2 Rh4 Ng3 Ne2 Bb3 Nc1 e2 Rh1 Qe6 f7 Qe8 Qf1 e1N f6 Nf3 Qe1 Ng1 Qe4 Nh3 Qe1 Qe6 f8N+ Ke8 f7+ Ke7 Qe3 Kf6 Nd7+ Kf5 f8N Qf7 Qe2 Ba2 Nde5 Kf4 Bf3 Bf5 Nfd7 Bb3 Ndb6 Ba2 Bc7 Re8 Bb8 Re7 Qe1 Re6 Nc8 Re8 Be2 Ke4 a8B+ Kd4 Bef3 Kc5 Bac7 Kb4 Bfd5 Re7 Nf3 Re4 Nh4 Rf4 Qe6 Rd4 Ra6 Re4 Ba5+ Ka4 Ne2 Kb3 Nc1+ Kc2 Rh2 Nf6 Ra7 Re8 h8N Ng8 Bac7 Re1 Ra3 Rh1 Ba5 Bb3 Qd7 Re4 Qe6 N6e7 N8g6 Ba2 Nge5 Ng6 Nb2 Bc4 Bdc6 Bd5 Bcb7 Bc6 Nbc4 Be8 Bd5 Ng5 N4d6 N6e7 Bac6 Qh5 Nhf3 Beg6 Rh4 Nh3 Ndc4 Qh7 Rh5 Qf7 Rh8 Bh5 Ba8 Ng6 Nh4
1Kb5/BR1Rb2q/NRp1B3/b2Np3/1n1rPB1p/3Q1b1B/4pR1r/1B3n1k b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 h4 d5 hxg5 f4 c4 dxc4 Qb3 Qd5 Qh3 Qd8 Qe3 fxe3 Ke2 Kd7 Kf3 Ke6 Kf4 b5 a4 h5 g4 b4 d4 b3 a6 b2 d5+ Kd6 a7 c6 a5 h4 g6 e6 a6 e2 g5 c3 g7 c2 g6 Qc7 Rh2 Bd7 Nd2 b1B Bh3 Rh6 Nb3 Nf6 g8B Qb7 g7 Ne8 Nc5 Ba2 Rb1 Nc7 Rb6 Ke7 Ke5 Qc8 f4 Be8 f5 Bd7 Rf2 Bc4 Bf4 c1B Rb7 Rg6 f6+ Kd8 f7 Ke7 Rb6 Rg2 Rb7 Bd2 d6+ Kd8 Rb6 Be7 f8B Nd5 Bf7 Bd3 g8B Rh2 Bg7 Be8 d7 Kc7 d8R Qb7 Bgh6 Ne3 Rd7+ Kc8 Bhg5 Nf1 Be3 Ba5 Bgf4 Bf6+ Kd6 e5 Bb3 Bh5 Bd4 Bf3 Ba2 Bc4 Bb1 Be6 Bf7 Beg4 Be6 Bg5 Rh7+ Kd8 Bde3 Qf7 Rg7 Qf5 Rgb7 Qh7 Rd7+ Ke8 Kc7 Be7 Kc8 Kf8 Rdb7 Kg7 Kc7 Nd7 Bd4 Rd8 a8Q Kg6 a7 Kh5 Na6 Nf6 Qb8 Rh1 a8R Rh2 Raa7 Rd5 Bc5 Rd4 Qd8 Nd5+ Kb8 Nb4 Qd5 Bf5 Qb3 B5g4 Qd3 Bf5 Bg2 Kg4 Nh3 Bd8 Rd7 Bg5 Rab7 Be7 Bc1 Kg3 Nf4 Rh3 Be3 Kh2 Nd5 Kg1 Bf4 Rh2 Bh3 Kh1 Rb5 B5g4 Ba7 Bf5 Bg8 Be6 R5b6 Beg4 Rdc7 Bd7 Bge6 Bc8 Rd7
N1QRKnR1/1b2p2r/2p3N1/b3qb1B/b1nBB1R1/P3p3/p1kB3r/B3R3 b - - 0 1 illegal: No proof kernel
Qbn3R1/bbNB4/5Rp1/1n1NpB1b/BrNp1B1K/1k1P4/r1N4p/2b1B3 b - - 0 1 illegal: No possible last move
5BR1/Kp2b2B/1BpBbp2/1N1bn1N1/7q/2rN1B1R/1P1pNp2/1rQr2k1 b - - 0 1 illegal: No proof kernel
1k3q1q/2BB2R1/p3pr1r/4Rp1R/1BR2p2/4p1NB/1B1QPqbK/bn3N2 b - - 0 1 illegal: No proof kernel
1n1nBN2/n1Q4B/1n1R2Rb/1qRP1pN1/B1b1kB2/N2N4/1r1nn3/7K b - - 0 1 legal: proof: b4 a5 bxa5 e5 f4 exf4 g4 b5 c4 d5 cxd5 h5 gxh5 b4 a4 Nd7 a6 Rb8 a5 Rb6 axb6 Nb8 b7 Nd7 b8R Nxb8 Kf2 Kd7 Kg2 Kd6 e4 Ke5 h4 g5 d4+ Kf6 h6 c5 e5+ Kf5 h5 c4 a7 c3 a8B c2 h7 b3 h6 b2 e6 g4 d6 g3 d7 Qb6 d8R Nf6 e7 Qb5 e8B Be6 Bac6 Nd5 Nh3 Ke4 Rg1 f3+ Kh1 f2 Bf4 c1N Ra5 Nb3 Qc1 Nc5 Na3 b1N Rd6 Nb7 Qc4 Rg8 h8N Nd8 h7 Nc3 Ng6 Bh6 h8N f5 Nf8 Rg7 Nhg6 Rb7 Ne5 Rb6 Be2 f1N Nd3 Nd2 B2h5 Bg8 Bhg6 g2+ Kh2 Be6 Bh7 Rb7 Bcd7 Nb6 Qc7 Bb3 d5 Bc4 Rd1 g1N Kh1 Nge2 Rg1 Qb4 Rg4 Nb5 Rgg6 Na7 Rc5 Qb3 Ba4 Qb5 Qc6 Rg7 Qc7 Rg8 Rgf6 Rg3 Rg6 Rf3 Nb2 Rb3 Nd3 Rb2 Ng5+
KN1rr3/1nR2kr1/1bB3bB/N1nNR1Q1/Br3Nqq/1R5P/1r6/q4R2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 a5 d4 c5 b4 e5 d6 g3+ Kf3 a4 Ke4 c4 Kd5 g2 h3 a3 d7+ Ke7 f6+ Kf7 b6 a2 b5 f3 b7 e4 b6 f2 Ne2 g1Q Nbc3 e3 Nf4 e2 Bg2 Qd1 Re1 Qc7 d8Q Na6 b8N f1R b7 Qe7 Kc6 Rh5 d5 Nc5 d6 Nh6 d7 Nf5 Ncd5 c3 Kb6 c2 g6+ Kg8 g7 Rg1 Rb1 a1Q Nc6 Rh4 b8N Nd6 Rb3 Ndb7 Na5 Kf7 Rf1 e1R Be3 c1R Bh1 Kg8 f7+ Kh7 g8B+ Kg7 Bh7 Rb1 Bc2 Rb2 Bd2 Re3 Re1 Rd3 Re5 Qg4 Kc7 Qf6 Be3 Be7 f8R Qh6 Bd1 Bd6+ Kc6 Bc7+ Rf6 Qhh5 Rff5 Bb6 Qg5+ Qg6+ Rf6 Qh5 d8R Bf5 Rc8 Qg4 Qh5 Qh7 Qg5+ Bg6 Rc7+ Kg8 Rb5 Qhh5 Ba4 Rgg2 Rb3 Rd4 Nd7 Re8 Nb8 Rb4 Rff5 Rgd2 Bf3 Qh8 Bg2 Rh7 Nf6+ Kf8 Nd3 Qgd1 Qg4 Rd7 Rf1 Qh4 Bh6+ Rg7 Nf4 Rdd8 Qg5 Qdg4 Bh1 Nd6 Bd5 Nd7 Bf3 Kf7 Bh1 Nc4 Kb7 Nd6+ Ka8 Nb7 Bf3 Rc8 Bfc6 Rcd8 Rc8 Ndc5 N6d5 Rd6 Rc7+ Rd7 Ne7 Rdd8 Ned5+
R1NqNQrB/r3R1nq/NN3b1q/1K3B1k/8/4bPb1/B1nb1Bb1/2R5 b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 cxd5 f4 Qc2 f3 exf3 Na6 Qd1 Nb8 Nc3 g5 Nb1 g4 Nc3 h5 Nb1 g3 Ke2 gxf2 g4 Rh6 g5 Bh3 Qa4 Bc8 Qg4 hxg4 Kd1 Rh8 Kc2 Kf7 Kc3 Kg6 Kb4 e5+ d6 a6 d4 g3 h4 e4 h5+ Kg7 d5 c6 g6 e3 b6 Kh6 b7 g2 g7 Ra7 Nd2 e2 Nc4+ Qg5 Nh3 g1Q Nf4 Qg6 Bh3 f1Q Bf5 Qd4 Be3 Ne7 g8B Qf2 d7 Qh4 d8R Qh7 d6 e1B+ Ka4 c5 b4 a5 d7 Qd6 b5 Nbc6 b8Q Nb4 b6 Nc2 b7 Bg3 Nb6 c4 Bf2 c3 Ba2 Rg8 Kb5 a4 Rhc1 a3 Ng6 Qc7 Re8 Qd8 Qd6 Bg7 b8N Bd4 Qc5 Be3 Na6 Kg5 h6 Kh5 Qd6 Qg5 Qf6 Qf4 Qf8 Qh4 Bh3 Nf5 Re7 Ng7 Bf5 Qf4 Ne5 Bd2 Nec4 Qh4 Nd6 Qf4 Bb3 a2 Ne8 Qh4 Rab1 a1B Ba2 Qg6 h7 Qh6 h8B Qh7 Nb4 Qf4 Rb3 Qfh6 Ra3 Ba6+ Kc5 Bc4 Na6 Bf1 Ra5 Bg2 Kb5 Ne1 Ra4 c2 Ra3 Bf6 Ra4 Qc8 d8N Be3 Nb7 Qd8 Nbd6 Bd2 Rd1 c1B Ndc8 Be3 Ra3 Bcd2 Rc1 Nc2 Nac7 Rb7 Ra8 Ra7 Na6
r4R1q/2N1Qb2/3rBq2/1Rb2B2/3B1BNP/kr2Nq1n/qR1q1N1K/7n b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 Kd7 Kg2 Kd6 b4 e5 d4 c5 h4 a5 f6 g3 f7 e4 g6 a4 g7 a3 b6 a2 b7 e3 b5 e2 b6 e1Q Bb5 c4 Na3 c3 Bd3 c2 Rb1 a1Q Be4 Ne7 g8B Ng6 Rh2 Qec3 Be3 c1Q Nh3 Be6 Nf2 Rh6 Rb5 Qf6 Nc2 Nd7 b8N Q1d2 b7 Nc5 Nd7 Qa2 Bf5 Ne4 Ne5 f3+ Kg1 g2 Neg4 Be7 f8R Bf7 b8N Ng3 Na6 Qc8 Nc7 Nh1 Bg5 Nf4 Nce3 Bh5 Bge6 Bf7 Rh3 Qb8 Kh2 g1R Rg3 Nh3 Rg2 Rb1 Bf4+ Qe5 Rg1 Rb3 Rb1 Qe8 Rb2 Bd8 Na6 Bb6 Nc7 Bc5 Rb8 Ke7 Rb5 Qf6 d6+ Kd8 d7 Ke7 Bg5 Kd6 d8Q+ Kc6 Qe7 Qd8 Bc8 Qh8 Bf4 Rd6 Qe6 Qg5 Qe7 Qgf6 Bce6 Bb6 Re5 Bc5 d5+ Kb6 Qd7 Ka5 Qe7 Rda6 d6 Ka4 d7 Ka3 d8B Rd6 Rd5 Qd3 Nfd1 f2 Re5 f1Q Ndf2 Qd2 Rd5 Bd4 Rb5 Qfe2 Na6 Qf3 Bb6 Bc5 Nc7 Bb4 Bd4 Bc5 Bg3 Re8 Bge5 Ra8 Bf4
1R1n1R1N/2n1r1b1/2BB1bN1/k1b2rq1/5Q2/1KRRNn2/1BP4B/3r1bq1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Kd2 g5 f4 d5 h4 Kd7 f6 Kc7 h6 Kb6 h5 e5 f5 b3 f7 g4 h7 e4 h6 d3 Kc3 b2 f6 g3 Bd2 e3 Ra4 d4+ Kb3 e2 Bh3 e1B Ra2 g2 Ne2 g1B Bg2 Ra7 Bg5 d2 Ra3 d3 Nbc3 b1N Bf4 Nc6 Rh3 Bh4 Bh2 Bgc5 Nf4 Nge7 Qf1 d1Q Ng6 d2 Rd3 Nd5 Qf4 Bg7 f8R Ba6 f7 Qg1 Nd1 Nc7 Ne3 d1R Bh1 Rg8 h8N Qdg5 h7 Nd8 Bc6 Rb7 Ka2 Ra7 Rac3 Ka5 b6 Nd2 b7 Nf3 b8R Bb5 Kb3 Rb7 Re8 Ra7 f8B Ba6 Rd2 Bf1 Bd6 Rf8 Rdd3 Rf5 Rf8 Ne8 Nf7 Re7 h8B Nc7 Rc4 Bh6 Bb2 Bg7 Nfh8 Q5g3 Qd4 Bhf6 Qf4 Qg5 Rcc3
N1nq1r2/3BB1Nk/n3Nb1b/1rq1RR2/Q2P1rB1/1RB1bb1n/1K6/4R3 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 Kd2 Kg7 Kc2 h5 f4 e5 g4 c5 d6 h3 d7 h2 b6 h4 g5 b3+ Kb2 c4 f6+ Kg6 f5+ Kh7 b7 e4 f7 e3 g6+ Kg7 Nh3 e2 Na3 e1B Be2 Ne7 Bg4 Na6 b8R Bb7 Ng5 h3 Bd2 Bf3 Bc3 Nc8 Nb5 Bh4 Re1 h1Q Ra5 h2 Nc7 Qg1 Qa1 h1N Qa4 Nf2 Rae5 Nh3 Nge6+ Kh6 g7 Bf6 Rb6 Kh7 Rb4 Ra7 Na8 Qe3 Rb6 Qg5 Rbb5 Rb7 Rb4 Rb5 g8B+ Kh6 Ng7 Qh5 Kb1 b2 Rb3 Qg5 Ka2 b1R Bh7 Rd1 Kb2 Rd3 Bg8 Re3 Bh7 Re4 Bg8 Rf4 Bh7 Qe7 d8B Qc5 Be7 Rg8 Nh5 B8g7 f8N Rh8 Ne6 Rf8 Bg6 Qh4 Be8 Kh7 Bd7 Bh6 Nhg7 Qg5 Bd2 c3+ Ka1 c2 Bc3 Qh4 Kb2 Bfg5 f6 c1B+ Ka1 Bd2 f7 Be3 Ka2 Bf6 Kb2 Re8 f8R Qg5 Rf7 Rf8 Re4 Qgd5 Re5 Qdd6 Bc6 Qd8 Bd7 Bh4 Rff5 B4g5 Rh1 Bf6 Re1
2KbB2R/1R1B4/kPNb4/2qb1q2/1n2q2R/N1qqNN2/2rR3n/2Q2b1B b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 Nc6 h4 Bd7 b3 Bf5 h5 Bc8 Bb2 Nb8 Bf6 Ra6 f4 gxf4 g5 e5 Be7 Rb6 Bc5 Rg6 hxg6 e4 Bf2 e3 Qc1 exf2+ Kd1 Bf5 Qc2 Bg4 Kc1 Bd7 Qd1 Bc8 Kc2 Kd7 Kc3 h5 Kc4 c5 d4 Kc7 e4 Kb7 e5 f5 d6 f3 Kd5 a4 b4 c4 e6 a3 e7 a2 e8B h4 b6 f4 b5 h3 d7 h2 Ke6 c3 g7 c2 d5 c1B d6 Ba3 g6 Be7 Bh3 f1B Qc1 f2 Nf3 Nf6 g8N Nc6 g7 Nb4 Nh6 Qc7 g8B Bd8 Nf5 Ng4 Ne3 Qc5 Bgf7 Rh5 Bg6 Rd5 Bc2 Rd2 Be4+ Kb8 b7 Ka7 b8N Rc2 Bd5 Bb7 Nc6+ Kb6 Be4 Ba8 Bd5 Kb7 b6 Ka6 Rg1 h1Q Rg2 Bc4 Rh2 f1Q Rd2 Qd3 Rh2 Bb2 Na3 Be5 Rd2 Nh2 Bg4 Bc7 d8R Qf5+ Ke7 Bf1 Rb8 Qg2 Rb1 a1Q Rb7 Qac3 Ra1 Qfd3 Kd7 Bd8 Kc8 Qf5+ d7 Bd6 Ng1 Qe2 Bh1 f3 Bh3 f2 Nf3 Qed3 Ra2 Qdc4 Rd4 Qfd3 Rh4 Qce4 Rb2 Be2 Be6 f1Q Bf5 Qh3 Be6 Qhf5 Ra2 Bf6 d8R Bf1 B6d7 Bfe7 Bf7 Bf6 Rdh8 Bd8 Be8 Re2 Rd2 Rg2 Rc7 Re2 Na5 Bd5 Nc6 Rf2 Rb7 Re2 Rd1 Rc2 Rd2
bBR5/rb3Kn1/bk1NRnn1/1r1r1n1n/N1B1Q3/BP6/6B1/R4NbN b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 d4 Kd8 Kd2 f5 Kc3 a5 Kc4 h5 e4 c5 b3 Kc7 g6 a4 d6+ Kb6 Kd5 f4 g7 g2 d7 c4 Ke6 f3 e5 a3 d5 h4 d6 a2 Qd2 c3 Qd5 f2 Bg5 g3 Ne2 g1R Rh3 g2 Ng3 c2 Bd2 c1N Rh2 h3 Bf4 Nh6 g8N Nd3 Ne7 Bb7 d8R Nf5 d7 Ra7 Rc8 Ng7+ Kf7 Rh5 d8N Nd7 e6 Nf6 Bd6 Nf4 Nh1 Ng6 Bc4 f1B Qe4 Rd5 Ba3 Bd3 Nf5 Bc5 e7 Rf1 e8B g1N Nfg3 Ne2 Ra8 Nef4 Rc8 Bg1 Bc6 N4h5 Nc3 Rff5 Re2 h2 Nf1 Ba8+ Nb7 Rg5 Rae1 a1N Ra2 Nc2 Raa1 Ne3 Re2 Ra6 Nd6 Ra7+ Bb7 Rge5 Ree1 Nef5 Na4+ Ka5 b6 Rb5 Nhg3 h1B Re2 Bf3 Nh1 Red5 Re3 Ra6 Bc6 Ra7+ b7 Ka6 Rc7 Ka5 b8B Bb7 Rc8 Bde2 Nc5 Kb6 Na4+ Ka6 Rf8 Rd2 Qe8 Ba8+ Qe7 Ka5 Re5 Rc5 B4d5 Ba6 Bc4 Rb5 Rc8 Rd1 Be8 Bfb7 Bc6 Rd4 Bg2 Rdd5 Qe6 Rd1 Qd5 Rd3 Qe4 Rdd5 Nc5 Kb6 Ree8 Nfh4 Re6 Nhf5 Na4+
5n2/5R1B/2Rp1NnN/N1kb1PB1/q3R2Q/N1rB3n/r3B2K/1r1rb1r1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 c4 h5 g4 e5 f4 Ke7 Kf2 Kd6 Kg3 b3 b6 h4+ Kh2 d3 c5+ Kd5 f6 d6 b7 e4 g6 b2 f7 d2 g5 h3 c6 e3 f5 e2 c7 e1N g7 Ng2 g6 Qd7 Ra4 Nf4 Qg4 d1R Qh4 Rh6 Re4 Ra1 Na3 b1R Be2 Rh5 Nf3 Rh6 Ng5 Ra2 Nh7 Kc5 Nf6 Be7 f8R Qa4 Rf7 Be6 c8B Nd7 b8N Nf8 Ba6 Bd5 Nc6 Bd8 Bb5 Ba5 Bd3 Ne7 g8B Be1 g7 Neg6 Bh7 Rh5 g8N Rg5 Nh6 Rg3 Rf1 Re3 Kh1 h2 Na5 Nh3 Kg2 Rf3 Bg5 h1R Rf2 Rg1+ Kh2 Rfg3 Rff4 Re3 Rc4+ Kb6 Rfe4 Rf3 Rb4+ Kc5 Rb6 Re3 Bc4 Reb3 Bd3 Rc3 Rc6+
NR2q2B/nQRq3N/3kp3/1P1qqr2/2RR1BN1/3b2r1/1K1NnBb1/4q3 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 g6 cxd5 Nh6 f5 Ng8 g4 Bb7 h4 Bc6 g5 Bd7 f6 Bh6 Bh3 Qc8 Bf5 gxf5 g6 Bg5 hxg5 Qd8 Rh5 Be6 Rh1 Bc8 d4 Kd7 Kd2 a5 Kc2 h5 b4 c5 g7 h4 f7 f4 f8B e3 d6 a4 g6 f3 d5 e2 b6 e1Q b5 f2 b7 f1B Kb2 e6 Ne2 c4 Bf4 h3 Nec3 h2 Nd2 Rh7 Qf3 Nc6 b8R Nh6 g8N Rg7 Rc1 Nf5 Nh6 Na7 Ng4 Qe8 Rc2 Rg8 Bg7 Ng3 Bh8 Bd3 g7 Bb7 Rg1 Qe5 Rgc1 h1Q Qe4 Rf8 g8N Ne2 Qg2 Rf5 Qe4 Qhh5 Qh1 Qc8 Qg2 Qhe8 N8f6+ Kd8 d7 Ke7 d8B+ Kd6 Nh7 Qcd7 Bh4 a3+ Kb1 a2+ Kb2 Bc6 Bf2 Bb7 B4e3 Qe4 Na4 Qf3 Nb6 c3+ Ka3 Qe4 Bf4+ Qe5 Kb3 a1Q Qh1 Qb1+ Ka3 Qb4+ Ka2 Qd4 Kb3 Kc5 d6 Bg2 Ka3 Qdc8 d7 Kd6 d8R+ Qcd7 Ka2 Qd5+ Ka1 Nc8+ Kb1 Ra3 Na8 Na7 Re1 Ng3 Re4 Rb3+ Ka2 Ne2 Rc1 c2 Rc4 Rc3 Kb2 Ra3+ Rd4 Rc3 Rdc8 Ra3 Ra1 Rc3 Raa4 Ra3 Rac4 Rc3 R8c7 c1Q+ Ka2 Qe1 Kb2 Bde4 Qh4 Rg3 Qd8 Bb1 Qc8 Bd3 Qb7
1R2r1N1/R4BP1/7b/2r2qnR/QBN1NrpK/b1N5/q3r3/Br1Bn2k b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 Bf5 axb5 Bc2 f4 Bg6 h4 e6 f5 exf5 h5 fxg4 hxg6 g3 e4 Ke7 d4 Kf6 b4 a5 e5+ Kf5 e6 Ke4 e7 f5 e8B h5 g7 c5 b6 g4 d6 c4 d5 a4 b5 g2 Kf2 a3 Kg3 f4+ Kf2 c3 d7 h4 d6 a2 b7 f3 b6 c2 Be3 c1R Qb3 h3 Kg3 h2 Na3 f2 Bb5 f1R Bd4 Qf6 d8N Nd7 b8B Nc5 b7 Qf5 d7 Nh6 Ba4 Rf4 Ne2 g1B Bd6 Nd3 b8R Be3 Kh4 Kf3 Ne6 Kg2 d8N Ne1 Nc6 Rc5 Nc3 Rh7 Bh5 Nf7 Ne7 Ng5 Nc4 Rh8 Ng8 Bc1 Rb6 Re8 Rb8 Rh6 Qb5 Be7 Bd1 Rh7 Rb1 a1Q Qa4 Qa2 R1b7 Rh6 Ra7 Be3 Nd8 Re6 Nb7 Bc1 Bf7 Re2 B6e5 Ba3 Nbd6 Bd8 Nde4 Ba5 Nb5 Bd2 Ba1 Bdc1 Bec3 Be3 Rf1 Bd2 Rf3 h1R+ Rh3 Bdc1 Bb4 Rhf1 Rf3 Kh1 Rh3+ Rh2 Nh6 Nef3+ Kh5 Ne6+ Ng5 Rd4 Nc3 Bd2 Bc2 Rb1 Bd1 Ne1 Ng8 Re4 Kh4 Re2 Nge4 Bh6 Kg3 Ng5 Rh5 Rf2 Ra6 Rf4 Ra5 Nh3 Ra6 Re2 Kh4 Ng5 Ra7
1bBRq2k/2Nb1r2/1qN1nr1R/Q7/2B1Kb2/b3p3/P1RNB2r/R2nB3 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Ra6 fxg5 Ra4 g6 Ra3 g5 Ra8 Qg4 hxg4 Kf2 c5 Ke3 e5 d4 b5 h4 b3 g7 Kf7 h5 g3 d6 g2 f6 b2 d5 e4 h6 c4 d7 b4 d6 b3 h7 c3 Bd2 c2 Rh2 c1B Be2 Ne7 Nf3 Nbc6 Nd4 Qe8 d8Q Ra7 Qa5 Nd8 d7 Ne6 d8R Bd7 Nc6 g1B+ Rf2 Kg6 g8B Bh2 f7 Kg7 g6 Bb8 Rh2 Nc7 Kd4 Ned5 Be1 Nc3 Nd2 Ba3 f8N b1Q Bgc4 b2 Ba6 Nd1 Bc8 Ne6+ Kd5 Rg8 h8R Ra6 R8h5 Rh8 Rg5 Rb6 Rf2 Rh2 Rfg2 Kg8 g7 Ra6 Rg6 Ra7 Nf3 Bcf4 Nd2 e3 Rf2 Qc2 Rfg2 Qb3+ Ke4 b1R Rf2 Qb6 Rfg2 Nc7+ Ne6 Kh7 g8B+ Kh8 Rf2 Rb5 Rfg2 Rf5 Rf2 Rf6 Rfg2 Nb5 Bf7 Nd4 Bg8 Qf7 Nc7 Qf8 Bgc4 Ne6 R2g5 Qe8 Rb5 Rf8 Rb2 Ra6 Rc2 Rf7 Qa4 Ra5 Qb4 Raf5 Qa5 R5f6 Rh6+
1B1b1r1r/7R/1qrB4/k2Kn1NR/1pRN1RQ1/bbB3n1/qPN1b3/6N1 b - - 0 1 legal: proof: e4 c5 a4 f5 exf5 h5 g4 d5 gxh5 c4 Na3 c3 Bc4 d4 Ba2 d3 cxd3 c2 Bb1 cxb1B d4 Ba2 a5 Qxa5 d5 Qd8 Ke2 Kd7 Ke3 Kc7 Ke4 Kb6 h4 a5 d4 e5 f4 g5 f6 g4 f7 a4 f5 g3 h6 g2 d6 Ra5 d5 Nd7 h5 Rb5 f6 Bg7 f8B Rc5 f7 Bb3 h7 Rc6 h6 Ka5 Rh5 b5 Bf4 Bf6 Rc1 Ne7 Rc4 Ba6 Qg4 Qb6 Nc2 Nf5 Be7 a3 f8R a2 Bh2 Rg8 h8B a1Q h7 Qa2 Bg7 Bh4 h8R Bf6 R8h7 Rh8 Rf7 Bh4 Bef8 Bd8 Rf6 Nb8 d7 Ng3+ Kd3 e4+ Kc3 e3 d6 e2 Rf4 Qb7 Kd4 e1B Kd5 Bb4 Bc3 Qb6 Be7 Rc7 Bf8 Nc6 Be7 Ne5 Bf8 Bh4 d8N Rc6 Nf7 Bd8 Be7 Rf8 d7 Rh8 Bd6 Rf8 Nh3 g1R Nfg5 Rh8 Bb8 Rf1 Ng1 Rf3 Re4 Rff8 Rf4 Be7 d8N Bf6 Nde6 Bd8 Bd4 Ba3 Bc3+ b4 Ned4 Bc8 Qh3 Bg4 Bd6 Bd1 Qg4 Be2 Re4 Nf5 Bf4 Ng3 Bb8 Nd7 Bfd6 Ne5 Rf4
N2b4/2R1q2r/1B2nN2/pR2Bb2/2rR1brk/8/B2QNqPn/K1BR2b1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Qd6 e4 Qxh2 f4 f5 exf5 gxf4 b4 Kf7 d4 Kf6 Kd2 Kg5 Kc3 a5 Kb2 e5 d6 c5 b6 h5 d5 e4 d7 c4 d8R h4 b5 e3 b7 f3 d6 f2 d7 c3+ Ka2 h3 b6 c2 f6 Rh4 f7 Be7 f8N Qe5 Ne2 h2 Nf4 e2 Na3 e1B Bd3 f1Q Bc4 Nh6 Nb5 Rg4 Qd2 Qf2 Ne2+ Kh4 Nc7 Nc6 b8R Nd4 b7 Ne6 Nh7 Qe4 Rf1 h1R Nf6 Ra6 Kb2 Rc6 Ba2 Rc4 Na8 Bc5 Rb1 Qh7 Ka1 Qe7 Rb5 Bb6 Rg8 Bd8 Rgg5 Rh2 Rgd5 Rh1 Rd4 Rh2 Ba3 c1B Rc5 Rh1 Rc7 Rh2 Qe3 Bb4 Rfd1 Bc5 Qd3 Bf4 Qd2 Nf7 Bb2 Nfg5 Bc1 Nf3 Rc6 Bdb6 d8B Rh1 Bc7 Nh2 Be5 Bd8 Bc7 Nf8 Bb6 Bf5 Rc7 Ne6 Rbc8 Nf3 b8B Rh3 Rb7 Nh2 Rcc7 Kg5 Rc8 Rh7 Be5 Kh4 Rcc7 Qg3 Rd3 Bg1 Rd4 Qe3 Ba7 Qg3 Rb5 Qf2 Bb6
3bK3/1b2B3/1q1kB1n1/2pB4/r1P1Rq2/N1R1bbRb/4BN1R/1n1nN1Q1 b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 axb5 f5 h4 e5 hxg5 Ne7 g6 Ng8 g5 Ra6 d4 Re6 e3 exf4 e4 Re5 dxe5 fxe4 Kf2 Ke7 b4 c5 c4 d5 g7 h5 g6 a4 e6 a3 b6 e3+ Kf3 e2 b7 e1Q b5 a2 b6 d4 Rh2 h4 Kg4 h3 Kf5 d3 Nf3 d2 Na3 Qf2 Ne1 f3 Be2 Nc6 b8R Na7 b7 Qb6 Ra8 Qf1 b8R Bb7 Re8+ Kd6 e7 f2 Rb1 a1B Rb3 Bb2 Rg3 Bd4 Bb2 Be3 Bf6 Nb5 Ra4 Kc6 Ke6 Nc3 Kf7 Kd6 Rb4 Rh7 Rb3 Nb1 Rc3 Rh8 Qc1 d1N Bh4 Nf6 g8N Nd5 g7 Nf4 Nh6 Ng6 g8B Bg7 Ng4 Bf6 Rc8 Rh6 e8B Bd8 Bc6 Rh7+ Ke8 Rg7 Rhg2 h2 Be6 h1B Rh2 Bf3 Bcd5 Rc7 Ra8 Rc8 Ra7 Ra8 Bg5 Bc8 Rc7 Bb7 Re7 Ra4 Bf6 Qh3 Bg5 f1B Nf2 Qh6 Bf7 Bg4 Ng2 Bf3 Re4 Nb2 Bfe6 Qh4 Qe1 Nd1 Bf6 Qf4 Be7+ Kc7 Nh4 Bh3 Ng2 Qf6 Qg1 Qf4 Bf6 Kd6 Ne1 Qh4 Bg5 Qf4 Be7+
Qn2Rk2/2KpN2n/4q1b1/1R1r3r/P3B3/B2NR1n1/nRBq3q/5NBn b - - 0 1 illegal: No possible last move, all moves rejected
2bkB1Kb/2rrNr1R/bPB5/1n6/b7/N1N1RN1B/b1n1p2B/1bQ2R2 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 f4 hxg5 Bg7 d4 cxd4 g6 Bf8 g5 Qc7 Rh2 Qe5 Rh1 Qf5 exf5 Bb7 f3 Bxf3 Bg2 Bb7 Bf1 Bc8 Kf2 h5 Kf3 e5 Ke4 a5 Kd5 a4 b4 d3 c4 h4 b6 a3 c5 d2 b7 e4 f6 h3 g7 h2 g6 f3 b5 f2 b6 e3 f7+ Kd8 c6 a2 Ke5 d5 Ba3 d4 Bc4 f1B Ne2 d3 Bb5 Na6 b8N Nc7 Bd6 Rh7 Nec3 Nh6 Kf6 Nf5 g8B Ra7 g7 Nd4 Qc1 d1B Nd7 d2 Na3 Ba4 Ne5 d1B Nf3 Nc2 Rb1 a1R Rb3 Bd3 Rf1 h1B Bh2 Bb4 f8N e2 Kf7 Be7 Ng6 Bf6 Ne7 Bg2 Kf8 Bgh3 Bgc4 Ba6 g8R Bhc8 Bd5 Bh8 Rg7 Rb7 Kg8 Bg6 Bbc4 Nb5 Bd3 Rd7 c7+ Ke8 Bc6 Be4 Rg6 Rf7 Rh6 Bd5 Bg6 Rb1 Rb4 Ba2 Re4 Rb4 Re6 Rc4 Rh7 Bb1 Re3 Bb3 Rh6 B3a2 Rh5 Ncd4 Rh4 Ba4 Rh7 Nc2 Bh5 Bcb7 c8B Kd8 Be4 Rcc7 Bc6 Rd1 B8d7 Bc8 Be8 Rd2 Bg4 Rdd7 Bh3
4qn1B/3n1N2/3QB1bB/KNN3b1/2bp1p1k/1Rn3RP/B3R1Nr/r4q2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kd2 Ke7 c4 Kf6 e4 Kg5 h3 f5 b6 d5 c5 f3 h6 f2 a6 d3 Kc3+ d2 Kb4 g6 b7 Ne7 c6 Qc7 e5 Qd6+ Ka5 Bg7 e6 Qd8+ c7 Bf6 a7 Bd4 h7 Qg8 Nc3 Bf6 Rb1 Nd7 b8N Kh4 Nge2 g5 Nf4 g4 Rh2 g3 Nb5 g2 Rb3 g1Q Bc4 f1B Na6 Bg5 Nc5 Ng6 e7 Qe8 Re2 Rg8 h8B Ngf8 Rg3 Ba6 c8B Bg2 Bb3 Qf1 Ba2 Be4 Ng2+ Kh5 Qe1 d1N Qd2 Nc3 Qf4 d4 Qd6 Bd5 Bf4 Bf7 Bc1 Bg6 Bd2 Rb8 a8R Rg7 Ra7 Ra8 Rb7 Rg8 Na7 Bc4 Rb3 Bf6 Bh6 f4 Nd3 Bg5 Nc5 Nf6 Be6 N6d7 Kb4 Rg7 Nb5 Ra3 Bb1 Ra1 Ba2 Qa8 e8N Qc8 Ne1 Kh4 Ka5 Qb8 Qe5 Re7 Ned6 Qc8 Nf7 Qe8 Bf5 Re6 Qd6 Re3 Bg4 Rf3 Bf5 Rf2 Be6 Rh2 Ng2+
b3r2R/K1Q4B/3RR1NN/1Pr2q2/3R1N1q/3nB1pk/1p5n/2BBqb1b b - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 b4 axb4 a3 b3 Bg2 b2 Bh3 Bg4 Bf1 Bc8 Qa4+ b5 Qd1 b4 Nf3 b3 Ng1 Bb4 axb4 Bh3 Na3 Be6 Nb1 Bc8 Kf2 Ke7 d4 Kf6 e4 Kg5 h4+ Kf6 e5+ Kf5 d6 c5 h6 g5 h7 f3 Ke3 Kg4 b5 f5 d7 c4 e6 c3 e7 c2 e8B Qc7 d8N Qh2 h5 Qg2 d5 f4+ Kd4 Ra7 Kc5 Nh6 Kb6 Rg7 d6 Qd2 d7 Nc6 Bd3 Qb4 Nf7 Ne5 d8R Bb7 Na3 b1B Ka7 b2 Rd6 Ba8 Ne2 f2 Nc4 f1B Raa6 f3 Nf4 Qa4 Be4 Nd3 Rh4+ Kg3 Qe1+ f2 Ne5 g4 Qc3 Rg5 Neg6 Rc5 Qa5 Ba2 Qc7 B2d5 Bc6 Re8 h8B Qc4 Bd4 Qb4 Bf5 Bh1 Bde3 Qd4 Bf3 Qf6 Bcd2 c1Q Bd1 Qc4 Be4 Qf5 Bc1 Qb4 Re6 Qe1 Rad6 Qg5 Nh3 Kh2 Bf5 g3 Rhd4 Ng4 h6 Qh4 h7 Kg2 Nhf4+ Kh2 Nd5 Kh3 Be4 Nh2 h8R Be2 Nh6 f1Q Nge7 Qf3 Bh7 Bf1 Ng6 Qf5 Ndf4+
2nBR1Nk/1b2pP2/B6N/1BK1Q1Rq/q3bR1b/1q5R/1r1pB3/3r2Nn b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Ke2 Kf7 Kd3 Kg7 Kc4 h5 g4 d5+ Kc5 b3 f4 b2 c4 h4 f6+ Kh7 g6+ Kh6 b6 d3 f5+ d2 g7 Kh7 b7 d4 f7 d3 f6 h3 g5 h2 g6+ Kh6 Nc3 b1B Be2 Bf5 Nd5 Nc6 b8R Qd7 Qe1 Na7 Ne3 d1Q Ra5 Qb3 Bd2 Be4 Re8 Qda4 Rb5 Nc8 Ba5 d2 Bd8 Rb8 Ng4+ Kh5 Ra5 Nh6 g8B Bg7 f8R Nf5 Nh6+ Bf3 Be6 Ng3 Bd7 Be4 Bb5 Rg8 Rf7 Bh8 g7 Kg6 Qa1 Kh7 Qe5 Rf8 g8N+ Bg7 Ra6 Kh8 Rd6 Rb6 Rd4 Bb7 Rg4 Bfe4 Rg5 Qf3 Bd7 Rb2 Bb5 Qfa3+ Kd4 Q4b3 c5 Qaa2 c6 Qaa3 Nf5 Qaa4+ Kc5 Bh6 c7 Bg7 Rg4 Bh6 Rgg7 Bg5 Nfh6 Bh4 Rg4 Bed5 Rfg7 Be4 Rf4 Rf7 Rg5 Rg7 Nh3 Rg6 f7+ Rg7 Rb1 h1Q Ng1 Qhf3 Rc1 Nh1 Rc3 Qg4 Rh3 Qh5 Qe6 Nb6 c8B Rg6 Bcd7 Nc8 Ba6 Rf6 Bc6 Rg6 Bcb5 Rf6 Rg4 Rf1 Rf4 Rd1 Qe5+
4r3/2Pn1pR1/R4Bq1/1rrR1k1n/qbp2N2/nNN1Bb2/Q1R1N2B/2K5 b - - 0 1 legal: proof: f4 e5 a4 exf4 b4 b5 axb5 h5 g4 Bd6 gxh5 Bf8 c4 Qf6 c5 Qd8 Bh3 d6 Be6 c6 Bc4 d5 bxc6 dxc4 b5 Bd7 Kf2 Bh3 Ke1 Bc8 d4 Ke7 Kd2 Ke6 e4 a5 h4 g5 d5+ Kf6 h6 g4 h7 g3 c7 a4 h5 a3 e5+ Kg5 b6 g2 h6 a2 c6 f3 d6 f2 e6 f1Q b7 Na6 b8B Qd7 e7 Bg7 e8R Qf3 Qa4 Qh5 Ne2 g1R Rh2 Rg3 Rd8 Qg6 Nbc3 Bb7 c8R Qh3 d7 Qf6 Rf2 Rg2 Bh2 Qg6 c7 Nf6 Kd1+ Kg4 Be3 Nh5 Kc1 Re8 h8B Nb8 h7 Bf8 Bf6 Bb4 h8N Bf3 Qc2 Ra5 Qa4 Qh7 Ng6 Kf5 Ngf4 Rc5 Qa8 Rg5 Qa7 Rh8 Rg8 Rb5 d8N Nd7 Nb7 Qg6 Rg7 Re8 Nc5 Qg4 Ra8 Qg2 Rb1 a1N Qa2 Nc2 Ra6 Na3 Nb3 Rc5 Rb2 Qg3 Rc2 Rb5 Nd3 Qd6 Rf1 Qc6 Ndf4 Rc5 Rd1 Qa4 Ne4 Rb5 Rd5+ Kg4 Rd4 Rgc5 N4c3 Kf5 Rd5+
b3b3/1k4Rb/2rrn1BN/KP3p2/1N4pb/1B1NN1R1/1Rq1n1Br/1R4Q1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 f4 b5 d4 cxd4 a4 e5 fxe5 Ba6 Bd2 Qf6 axb5 Bb7 b6 Qd8 b5 Bc8 Bb4 axb4 Kd2 d5 h4 Kd7 e4 f5 c4 g5 h6 b3 c5 d3 Kc3 b2 Kb4 d4 e6+ Ke8 e7 Kd7 e8B+ Ke7 c6 Kd6 h5 d2 c7 g4 h7 d3 h6 Ra6 e5+ Ke7 e6 Kd6 e7 Qd7 b7 Ra8 Ra3 Qc6 Bf7 Qc2 e8B Na6+ Ka5 Nf6 b8N Ne4 Nc3 b1B Nf3 Ba2 Ne1 Be7 Bg2 Bd7 c8R Bh4 Rc7 Nac5+ Na6 Ng3 Bb3 Rc8 Nb4 Ne6 Ncd5 Ne2 Bg6 Be8 Rg7 Rc6 Ne3 Kc5 Qb1 d1R Rh2 d2 Ned3+ Kd6 Qa1 Rb1 Rh1 d1B Rh2 Rb2 Rh1 Rf8 h8N Rf6 Nf7+ Kc7 h7 Kb7 h8R Nc3 Na6 Bf3 Qg1 Ne2 Nab4 Qd1 Ra4 Ka8 Rh3 Ng5 Bh5 Be1 Be6 Rcc2 Bh1 Nd4 Bc4 Rd6 Qh2 Ka7 Qf2 Ba8 Bg6 Bb3 Rf3 Kb7 Rh2 Ra2 Qf1 Bh4 Qg1 Qc1 Be6 Rcc6 Rg3 Bc4 Rf2 Rb2 Rf1 Rh2 Ra2 Qc2 Bg2 Ne2 Rb2 Ba2 Rfb1 Bc4 Bd7 Bb3 Nh6 Bg8 Nf1 Bh7 Be6+ Kb8 Bb3 Ne6 Ne3 Kc8 Rg8 Kb7 Rg7+
KB1Q3N/R2N2p1/2R5/1RP4n/N1n1rr2/1pB2nR1/nN3k2/bb1qBb2 b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 h5 g4 Ra6 gxh5 Ra8 a3 Nc6 Bc4 Nb8 Ba2 b3 Bh6 bxa2 Bg5 Qb6 Bc1 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 c4 d5 f4 e5 h4 b6 c6 d4 f6 d3 c7 d2 f5 Ke3 h6 e4 h7 Ra6 h5 Bb4 h6 Ra8 f7 Nf6 f8B Ra7 a4 Ne8 f6 Qd6 f7 Ba3 a5 Nc6 a6 Nd8 Ne2 Bf5 c8R Bg4 Rh3+ Kf2 Nec3 e3 Na4 e2 Nb2 e1N Rc6 Be2 Rg3 Ne6 Nc3 Nf3 Nca4 Re7 a7 Bf1 Ka6 b5 a8N b4 N8b6 b3 Nd7 Nf4 Ka7 Re4 Ka8 Nh5 c5 Qd4 Bd6 Rf8 Bb8 Nd6 h8R Nc4 h7 Bb4 Rg8 Bc3 h8N Qd6 Qc2 Be5 Qd3 d1B Bd2 Bc2 Qd5 Bc3 Qg5 Be5 Qd8 Bb1 Bc3 Qd1 Bd2 Re8 f8B Rf4 Bfd6 Bd4 Rf8 Ree4 Be5 Na3 Rf7 Bfd3 Ndb6 Rf6 N2c4 Rf5 Ra7 Rff4 Nd7 Bb2 Bec3 Bf1 Nce5 Nc4 Nab6 Bc1 Ra5 Bb2 Rb5 Bbd3 Rc1 a1N Rb1 Nc2 Ra1 Nb4 Ra7 Ba1 Na4 Bb1 Nd3+ Ke2 Ndb2 Na2 Be1 Ke3 Bed2+ Kf2 Be1+
1r2bk2/1p2Nn1B/R4B2/3pBbbN/1KRRq3/4q1Rr/Q2P3N/1b1B1r2 b - - 0 1 legal: proof: b4 g5 f4 e5 fxe5 a5 h4 axb4 hxg5 Ra7 a4 Nf6 a5 Ke7 c3 bxc3 a6 Ra8 a7 Ng8 axb8B Ke8 g4 h5 e4 f5 g6 c5 g7 c4 g5 d6 g6 c2 e6 c3 e5 f4 e7 f3 Bb2 c1Q Be2 c2 Rh4 Bd7 Rc4 h4 Ra6 h3 Nc3 h2 Nd5 Nf6 g8R h1B g7 Qa1 Qb1 c1R+ Bd1 f2+ Ke2 Qa4 Kd3 Ne4 Nf3 Ng5 Nh2 Qb6 Qa2 Nf7 Bc7 Rb1 Kc3 f1B Nf4 d5 Nh5 Bf5 Ba1 Kd7 e8B+ Ke7 e6 Bhe4 Be5 Rb8 Bd7 Qa7 Bc8 Ke8 e7 Rh7 Rd4 Bb5 Bb2 Qc2+ Kb4 Bbd7 Rc4 Qe3 Bf6 Ra1 Bbe5 Qcd3 Rd4 Bb5 Rc4 Qdd4 Be6 Bb1 Bc8 Qde4 Be6 Bg4 Bf5 Rh6 Bh7 Bf5 Ng3 Rh3 Nh5 Nd6 Rd4 Kf7 e8R Be7 Rc8 Be8 Rcc4 Bd8 Rh8 Be7 g8N Kf8 Bg6 Bd8 Rh7 Nf7 Rg7 Be6 Bh7 Bf5 Bh4 Bf6 Rg3 Bg5 Ne7 Bd3 Bc2 Rf1 Bb3 Bb1 Bd1 Bh6 Bhf6 Bf4 Kc5 Bg5 Kb4
BqR1Kn1q/P6p/1kBr2R1/8/Nq2N2N/Qn1R1N1B/n2p3q/2Bqr3 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 f4 axb4 e5 f6 exf6 Kf7 f5 Ke8 g3 Ra7 Qf3 Ra5 Qd1 Ra8 Bg2 g5 Bh3 b6 Bf1 g4 Be3 Ba6 Bc1 Bh6 h3 Bf4 gxf4 g3 Nd2 Be2 Nb1 Bg4 hxg4 Qc8 Kd2 Qc7 Ke1 Qd8 Ke2 d5 Kd3 Kd7 c4 Kc6 a4 e5 a5 g2 g5 b5 a6 b3 f7 b4 f8R b2 g6 b3 g7 Qc7 c5 Qd7 f6 Qe6 f7 Ra7 f5 Ne7 g8B Qc8 f6 Rb7 a7 Kb5 c6 Nd7 c7 Kb6 Qf3 Nf5 Nc3 b1N Ra3 b2 Ne4 Nc3 Rh6 Na2 Rg6 Rb8 Re8 Nf8 Qg3 Qd8 Nf3 g1Q c8B Qh2 Bg2 Rb7 Bh3 Rd7 Bb7 Rd6 Ba8 Qb8 Rc8 b1Q+ Rc2 Qb2 Rc8 Ne7 Rac3 Nc6 Ra3 Na5 Bc6 Ne6 f8N Nb3 f7 Qa1 Rg5 Qab2 Ng6 Nf8 Ngh4 Qa1 Rg6 Qab2 Nf2 Qa1 Ke2 d3+ Ke3 e4 Kf4 e3 Kg5 e2 Ne4 e1Q Kf5 Ne6 f8N d4 Kf6 d2 Ke7 d1Q Ke8 d3 Ba8 Qb4 Nd7+ Kb5 Nb6 d2 Na4 Nf8 Bge6 Rg8 Bed5 Qh8 Bdb7 Rg7 Bc6+ Ka6 Ne5 Rf7 Qe3 Rf1 Nef3 Re1 Qc5 Na1 Rd3 Nb3 Qc3 Ka5 Qb2 Ka6 Qa3 Ka5 Nb2+ Kb6 Na4+
1R1B2rR/5Kn1/2b2N1q/P1p5/1Nr2nRB/q2Q1NNp/Bb5p/1B1q2k1 b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 exf5 d5 cxd5 e5 b4 axb4 dxe5 Kd7 Qd4 Ke7 Qd1 Ke8 Kd2 Kf7 Ke3 b5 Kf4 h5 a4 c5 g4 b3 g5 b4 g6+ Ke7 Kg5 b2 f4 h3 a5 b3 f6+ Kd7 d6 Kc6 f5 h4 d7 Be7 g7 Bd6 Kg6 Ne7+ Kf7 Ng6 g8B Rh6 e6 Bb7 e7 Nf4 e8N Be5 Nd6 Qb6 d8B Na6 Nf3 Nc7 Nc3 b1Q Nde4 b2 Ra4 Qd3 Na2 Kd5 Ng3 b1Q Nb4+ Kc4 Be3 Ne8 Bf2 Ng7 Be2 Kc3 Rh2 Qe3 Bd3 Bc6 Qe2 Qf1 Bb1 Qd1 Rh1 Qec1 Qa6 Qa3 Qd3+ Kb2 Rh2 Kc1 Kf8 Nfh5 f7 Bd5 f6 Bb2 Nf5 Rg6 Be1 Rg4 Na6 Qe6 Rb4 Rb8 Rg2 Ne8 Be7 h2 Rb6 h3 Bh4 Rc8 Nb4 Rc6 Rb8 Rc8 Rg3 Rf4 Rg4 Bc6 Ng3 Re4 Nc2 Nf4 Nb4 Nc7+ Kg7 Rd8 f8N Ne8+ Kh6 Ng7 Nd7 Qd6 Bga2 Rc4 Kg5 Rg8 f7 Ne8+ Kf5 Qh6 Nf6 Qda4 Qc3+ Kd1 Bd8 Qc2+ Qd3+ Qd2 Nd4 Ke1 Nf3+ Kf2 f8R Rg7 Bb6 Qd1 Rh8 Rg8 Bd8 Kg2 Nd4 Ng7+ Ke5 Bc1 Nf3 Bb2+ Kd6 Kf2 Ke7 Kg2 Kf7 Kf2 Ng5 Kg1 Nf3+
1N2krQ1/1Rr1R2R/4p2B/1pqN1pq1/2nrNRNb/3qP1n1/K4B2/4B3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 a5 fxg5 Bg7 b4 axb4 a4 Bh6 a5 Bf8 g4 h5 g6 b6 a6 Bf5 g5 Bd7 Bh3 Bc8 Bg4 Bb7 axb7 hxg4 d4 c5 Kd2 f5 Kc2 b5 Kb2 c4 h4 e6 h5 b3 d6 g3 d7+ Ke7 g7 g2 g6 Rh7 d5 Qb6 d8R Qc7 d6+ Kf6 h6 Qd7 Nf3 g1Q Ne5 Qe7 d7 Qf1 Re8 Ra3 d8B Qg1 Nd2 Rh8 h7 Qb6 Qg1 Qf2 Bb6 Nc6 b8N c3+ Kb1 Qf4 Bf2 Qc5 Re7 b2 e3 Ra7 Ra4 c2+ Ka2 Rd7 Rd4 Qh4 Rf4 Rd4 Rh2 Na5 Ng4+ Kg5 Qg2 Nf6 g8N Ne4 g7 Kg6 N8f6 Ng3 Nde4 Nc4 Bd2 c1R Bde1 Qg5 g8R+ Bg7 Rd8 Rf8 Nd5 Bf6 h8B Rc2 Rb7 Be7 Bf6 Kf7 Rdd7 Ke8 Bg7 Rc3 Rh7 Rc1 Bh6 Rc2 Bc3 Bd8 Kb3 b1Q+ Bb2 Qg6 Na6 Qe7 Rb8 Nf1 Ne5 Nd6 Rbb7 Rc7 Nb8 Qd3+ Ka2 Nc4 Bc3 Qc5 Bce1 Bh4 Rdf7 Qh5 Qg8 Ng3 Ng4 Qg5 Re7+
2K3kR/1p1R2B1/RR2nqn1/2Qnpp1b/6r1/2N1PB1N/2n2bN1/3N2bB b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 g5 fxg5 Ra5 a3 Ra8 h4 bxa3 g4 Be6 h5 Qd7 g6 Qd8 g7 Ra6 g5 Rc6 Bb2 Bc8 Bc1 Rg6 hxg6 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 f5 Kf3 h5 Kf4 c5 Ke5 h4 d4 c4 d6 c3 e3 c2 d5 a2 Nh3 e6 d7+ Ke7 Bg2 Nh6 g8R Na6 g7 Kf7 d6 Qe7 d8R Bd7 Nc3 Nb4 Bb2 c1B Qd5 Bd2 Rhb1 Be8 d7 Be1 Qc5 Nd5 Bf3 Bf2 Nd1 Rh7 Rh8 Ng8 Bh1 Rh6 Bc3 Rg6 Rb6 Bg1 Ra8 Qd8 Raa6 Nge7 Kd6 Bf2 Rc1 a1N g8N Nc2 Bg7 e5+ Nf6 Bg1 Nf4 h3 Ng2 h2 Rcb1 Qc8 R1b4 Qd8 Rd4 Rh6 Rd3 Rh4 Ne4 Rf4 Nec3 Rg4 Rh4 Kg8 g6 Nc8+ Ke6 Be7 Rh5 Bh4 Rd2 Qc7 d8N Nce7 Nf7 Qd8 Ng5 Be1 Nh3 Bef2 Rc6 Qb6 Rd6 Bf7+ Kd7 Qc6+ Kd8 Be8 Rd7 Qf6 Rd4 Bf7 Rb4 Be8 Rbb6 Bf7 Nh4 Be8 Bf3 h1N Ng2 Ng3 Rh7 Ne2 Rh4 Nc6+ Kc8 Nd8 Bh8 Nef4 g7 Qe7 Rhh6 Bh5 Rh7 Kf7 g8B+ Kf8 Bf6 Ng6 Rh8 Ne6 Bg7+ Ke8 Qb5 Nec7 Be2 Ndf4 Nh4 Qf8 Bd5 Nfe6 Bh1 Nd5 Rh7 Qe7 Qc5 Kf7 Bef3 Kg8 Ng2 Qf6 Rh8+
3Rb3/1k3n1N/RQ2B1r1/1B2pq1N/K2nN2R/1BP1N1b1/3pp1p1/1B4rq b - - 0 1 legal: proof: e4 c5 d4 f5 dxc5 fxe4 a4 b5 axb5 Na6 f4 Nb8 f5 h6 f6 Rh7 fxg7 Rh8 g4 Bb7 g5 Ba6 g6 Bc8 Bg5 hxg5 Kd2 e5 Kc3 a5 Kb3 d5 h4 Kd7 c6+ Kc7 c3 e3 b6+ Kd6 h5 g4 c7 Kc6 h6 g3 h7 d4 b7 d3 Na3 d2 Ne2 g2 Nf4 Ra7 Ka4 Bd6 b4 Bg4 c8B Bc5 b5+ Kc7 b6+ Kc6 Qb3 Ne7 g8B Be2 g7 Ra8 Bce6 Ra6 Nc4 Qd3 Rh4 Qf5 Nh5 Ng6 Bgf7 Rf8 g8B Nh8 Bg6 Nf7 h8N Bd1 Bd3 e2 Ne3 Be7 Bdc4 Bg5 B6h7 Bf4 Ng6 Bg3 Bd3 Rd8 Bb1 Rd6 Nf8 Bc2 Bg6 Bd3 Nh7 Bb5+ Ka3 a4 Qb4 Qh3 Bgd3 Qf5 Bb3 Rg6 Qd4 Nd6 Bge6 Nf7 Kb4 a3 Ra2 Nd7 b8R Nf8 Rd8 Kb7 Qc5 Be8 Bb5 Ra8 Ra1 Rb8 Ka4 a2 Qc7+ Ka8 b7+ Ka7 Bed5 Ne6 Qc6 Ra8 b8N Nd4 Nd7 Rb8 Qd6 Rb6 Be6 Kb7 Ndf6 Ra6+ Kb4 Ra7 Ne4 Ra3 B3c4 Rb3+ Ka4 Rb2 Bc2 Rb1 B4b3 Rh1 Rc1 Rd1 Bb1 Rg1 Rc2 a1Q+ Ra2 Bh2 Kb4 Bg3 Ra6 Qb2 Ka5 Qc1 Ka4 Rh1 B1c2 Qg1 Bd3 Qh2 Bdc2 Rg1 Bb1 Qh1 Qb6#
N1N5/1N2K1Bk/bQpRn2B/2N2q1b/1p2pp2/1Pq2r2/1B2bR2/2rRB3 b - - 0 1 legal: proof: c4 d5 f4 b5 a4 g5 e4 b4 h4 gxh4 a5 Nc6 e5 Nd4 Bd3 Nb5 cxb5 e6 f5 Bc5 fxe6 Bd4 Be4 Bb6 axb6 dxe4 Ke2 Kf8 Ke3 Kg7 Kf4 h5 Kf5 a5 d4 c6 g4 f6 b7 h3 b8B h2 d5 h4 g5 h3 g6 a4 d6 a3 b3 a2 d7 Ba6 e7 Rh7 Ke6 f5 e8N+ Kh8 b6 Rh4 b7 Be2 g7+ Kh7 Nd6 Rg4 Qd4 Ba6 Nc3 Bf1 Ncb5 Qf8 d8B Rg6+ Bf6 Rg2 Na7 Rc2 Nf3 Ba6 Bh6 Bf1 Rd1 a1Q Ng5+ Kg6 Nac8 Rc3 Qb6 Be2 Rhf1 h1B Rf2 h2 Ba7 f4 b8B Rd3 Nb7 Ne7 Bd6 Nf5 g8R+ Ng7+ Kd7 Bg2 e6 h1B e7 Qb2 e8N Bh5 Ne6 Rf3 Nec5 Qc3 Nc7 Kh7 Bde5 Ne6 Rg6 Bf1 Bfg7 Qf5 Ke7 Ba6 Bef6 Bg2 Bh4 Bh1 Bb8 Ra7 Na8 Bg2 Bg3 Bgf1 Bbe5 Bae2 Bd4 Ra1 Bde5 Rc1 Bh4 Qd2 Bb2 Qc3 Rf6 Nd4 Rd6 Ne6 Rg2 Ba6 Be1 Bfe2 Rf2
3n2B1/2R1n1K1/BBn1p1Rp/brb1P3/1BnpR1Qk/4Nr2/p2N4/1N1N4 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 a5 b4 e6 f4 a4 c4 a3 b6 a2 g5+ Kg6 Ke5 d5 e4 h6 f5+ Kh7 f6 Kg6 c5 d3 c6 d2 b5 Rh7 c7 Bb4 c8R Ra4 b7 Qf8 b6 Rc7 f7 Re7 Rc7 Ra6 Nh3 g1B Nf2 g2 Rh4 Ra7 Ba6 Qd8 f8B Kh7 g6+ Kh8 g7+ Kh7 Ba3 Nf6 g8B+ Kg6 Qc1 Kg5 Nd1 Re8 Bc5 Ba5 Bab4 Rf8 Rg4+ Kh5 Rg6 Kh4 Be3 Nh5 Bd4 Rf3 Bdc5 Qe8 Bd4 Nf4 Kf6 Qc6 e5 Qc4 Kg7 Nc6 b8N Nd8 Nc6 Rb7 Ne7 Bf2 Bdc5 g1N Be3 Rb8 b7 Nge2 Bb6 Qe4 Qc5 Nd4 Qc1 N4c6 Nf5+ Kh5 Nfe3 Kh4 Qc5 Qf5 Qd4 Qg4 Qc5 Nd3 Qc1 Nb2 Qc5 Nc4 Qd4 Rc8 b8N Bg1 Nd7 Rb8 Nf6 Bf2 Ndc3 d1N Nfe4 Rb7 Ned2 Rb8 Na4 Nc3 Nb2 Rb7 Nbd1 Bg1 Ba7 Rb5 Bb6 Bf2 Qd3 Bg1 Qf1 Bf2 Nc2 Bd4 Qg1 Bc5 Nce3 d4 Nf5+ Kh5 Nb2 Nd6 Na3 N6f7 Re1 Nd5 Nab1 Nde7 Re4 Nd6 Ne3 Nc4 Nbd1 Kh4 Qxg4#
1k1qn3/BrR2B2/QqpP1Npr/2N1B1r1/3Rn2N/2q2N1p/p2R4/3K3B b - - 0 1 illegal: No possible last move
1k6/2r5/pb3Nbq/1pBnPp1R/1b1B1p2/bKRNRQ1N/1N6/1R3Bq1 b - - 0 1 legal: proof: b4 c5 f4 b5 a4 h5 c4 a6 a5 Ra7 Qb3 Rb7 Qd1 d5 f5 Rb6 f6 Nd7 cxd5 c4 axb6 Nc5 g4 hxg4 bxc5 exf6 Ra4 f5 Ra1 f4 d4 Kd7 Kd2 f5 Kc3 g5 e4 g3 h4 g4 h5 g2 d6 g3 b7 Qh4 b8N+ Kd8 d5 Qh3 c6 Qh4 h6 Qh3 d7 Kc7 d8R Nf6 h7 Ng8 d6+ Kb6 c7 Ka7 d7 Nh6 Ba3 Qh5 Nd2 Rg8 h8B Bc5 Qf3 Rg7 Rb1 Ng8 Nh3 g1Q Re8 g2 d8N Be6 c8R Rc7 Nf7 Qh6 Bd4 Ne7 Ne5 Bf7 Nbd7 Bg6 Nd3 Nd5+ Kc2 c3 Nc4 Bb6 Kb3 c2 Bac5 c1B Nf6 Ba3 Ncb2 Kb7 e5 Ba5 Rh8 B5b4 Rh2 Rd7 Rc6 Rc7 Rh7 Kb8 Rh8+ Qf8 Rh5 Qh6 Rh1 Qh2 Re1 g1B Re3 Bf2 Bb6 Qg1 Rc3 Ba5 Bbc5 Bb6 Rh2 Be1 Rhc2 Bd2 Rc1 Be1 Rb1 Bd2 Rcc1 Bdb4 Rc3
bNK2Qr1/2N1qpB1/1p1BpR1p/3p1B2/PnkN4/5r1R/1R2n3/R1N1n3 b - - 0 1 legal: proof: d4 g5 h4 a5 hxg5 c6 b4 axb4 d5 cxd5 f4 d6 e4 Qd7 e5 Qc7 exd6 Qd8 f5 e6 f6 Be7 fxe7 Kd7 Kf2 Kc6 Ke3 Kc5 Kf4 b3 Ke5 h6 e8N b2 a4 b6 g4 Qc7 c4 Qd8 g6 Na6 g5 Nf6 d7 Rb8 g7 Rb7 g8N Nb4 g6 Rb8 g7 Ne4 Qc2 Rb7 Nd2 b1N Ne2 Na2 Ne7 Nf2 g8R Nd1 Rh3 Kb4 Kd6 Nac3 c5 Na2 c6 Ra7 c7 Ra5 Rg6 Ra7 Nf3 Ra5 Bb2 Rf8 Bg7 Nb2 Qc5+ Kb3 Rf6 Rg8 Nc6 Nac3 Nb8 Bb7 c8R Nd2 Nc7 Qe8 d8B Ba8 Be7 Rb5 Bg2 Qf8 Kd7 Nd3 Bd6 Rb4 Bf1 Rf4 Qa3+ Kc4 Nfd4 Nb4 Nc1+ Ne2 Bg2 Na2 Be4 Nf3 Bf5 Nb4 Re8 Qe7+ Kc8 Rh8 Rg8 Ne1 Bf8 Rf3 Rg2 Rg8 Rgh2 Nf4 Rb2 Rgg3 Bg7 Ne2 Qe3 Rg2 Qg5 Rg1 Qg6 Rg2 Qh7 Rg1 Qh8 Rg5 Qf8 Rg4 Bh8 Rg8 Bg7
1K3B2/B1p1q2p/RRRNQ3/2R2b2/3pnp1n/b2BNb2/pPN2kN1/5b2 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 e4 a5 c4 Ne7 d4 Ba6 d5 Ng8 e5 Bc8 c5 Ra6 Qh5 Rb6 cxb6 Ne7 Qd1 Rg8 Ke2 Rg6 Ke1 Re6 dxe6 Ng8 Kf2 Ke7 Kf3 d5 g4 f5 g5 h3 g6 h2 b7 d4 g7 a4 b6 a3 Nh3 Nh6 g8N+ Ke8 e7 Kf7 e8R Kg6 e6 Kh5 e7 Kh4 Bd3 Nf7 Qe2 Nh8 Nh6 Nd7 b8R Bg7 b7 Be5 Ng4 Bf6 Qe6 Bg7 Ne3 Nb6 Rg8 Nc4 e8N Qg5 Nd6 Be5 Rg6 Qe7 Bd2 Qd8 Bb4 Qe7 Rc1 a2 Na3 Bg7 Nac2 Bf8 Ra8 Bd7 b8B Bc8 Rf6 Ng6 Ra6 Bd7 Ba7 h1B+ Kf2 f3 Nf4 Nd2 Nfg2+ Kg5 Kg3 f2 Rab1 Ne4+ Kf3 Kh5 Ra1 Nh4+ Kf4 f1B Ke5 f4 Kd5 Bc8 Kc6 Bd7+ Kb7 Bc8+ Kb8 Bd7 Nef5 Kg4 Nfe3+ Kg3 Nc8 Be8 Nce1 Nf2 Qd5 Qd8 Rfb6 Qd6 Qe6 Bh5 Rcc6 Bg4 Rac1 Ne4 R1c4 Qd8 N1c2 Bf5 Nge1 Bf3 N1g2 Kf2 Ba3 Bd6 Bc5 Be5 Bf8 Bd6 Rc3 Ba3 R3c5 Qe7 Nd6
1q1kq2B/b3n3/RNb1Rb1N/1N4rN/B1B1n3/1Q1P2rb/q4Br1/2R1K1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 c5 g4 a5 b4 f5 g5 h5 d6 c4 e5 h3 e6 f3 b6 f4 b7 f2+ Ke2 f3+ Ke3 c3 g6 h2 b5 h4 g7 c2 e7 a4 b6 h3 d3 a3 Kd2 a2 Na3 Na6 b8N Nc5 b7 Rh5 Na6 Rg5 Bg2 f1Q b8B f2 Be4 Qg2 Nc4 f1R+ Ne2 Rf2 Bb2 c1B+ Ke1 Be3 Bd5 Ne4 Qb3 Ba7 Nb6 Qc7 Rg1 h1Q Bc4 h2 Nf4 Bh3 Nh5 Rf3 Bd4 Rfg3 Bf2 Qd7 Rc1 a1B Bc7 Qe6 Bd8 Bf6 d7+ Kf7 e8R Bc5 Nc7 Ne7 Nb5 Rb8 Rf1 Qhg1 Ra1 h1B Ra6 Q1h2 Bc7 Be3 Be5 Bd4 Be3 Qa2 Bf2 Bc5 Bed4 Rg2 Rg1 Ra8 Ba1 Qb8 g8B+ Kg6 d8N Qf7 Rf8 Qe8 Nf7 Kf5 Bb2 Bcd4 Nh6+ Ke5 Na3 Kd6 Nb5+ Kc6 Bge6 Kb7 Bd7 Be3 Nd6+ Kc7 Ba4 Kd8 Nb5 R2g3 Rg8 Bc5 Rg6 Bf3 Rf1 Rg2 Bg3 Bg1 Bf2 R5g3 Rg5 Bd4 Nc3 Be5 Ra5 Nd6 Kd2 Bc6 Rc1 Ne4+ Ke1 Bd4 Rg6 Be5 Nd7 Be3 Re6 Ra6 Ba1 Ba7 Bb2 Rb6 Ra6 Rb5 Nb6 Bh8 Ba1 Rbg5 Nb5 Bg7 Bad4 Bh8 Bc5 Bb2 Bcd4 Ba1 Bg7 Bf6 Bh8
N1qnr1n1/1N3nr1/2krbQ1B/2R2R2/5KN1/1P1B1R1r/1bbN2rR/4B2q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 g4 a5 d4 h5 e4 f5 d6 h3 e5 h4 g5 h2 b3 c4 b6 a4 e6+ Kc6 d7 a3 g6 a2 b7 c3 e7 h3 e8N c2 g7 Ra6 Bb2 c1N Bd3 Ba3 Bc3 Bb2 Qf1 Rb6 Be2 Nd3 Nc7 Ra6 Na8 Ne5+ Kf2 f3 Kg3 f2 Be1 Rh7 Nd2 Nf7 Bd3 f4+ Kg4 f3 Kf4 Qf8 d8B Be6 Bg5 Qc8 Bh6 Rh8 Rb1 a1R Rd1 R1a2 d5+ Kc5 d6 Nc6 b8R Ncd8 d7 Rd6 Rb1 Kc6 Rb5 Ra7 Rf5 Rc7 Qg2 f1R Qg5 f2 Ngf3 Rg1 Qf6 f1B Ra1 Rg6 Raa5 Rg2 Rae5 Be2 Rf1 h1R Nh2 Bd1 Ng4 h2 Rf3 Bc2 Rd5 Ne7 g8R Rb7 Rgg5 Re8 Rh5 Ng8 Rhh3 Rhg1 Ra5 h1Q Rh2 Rb5 Rfh5 Rg5 Rf5 Rg7 Rhg5 Rg3 Rgh5 Rh3 Rc5+ Kb7 Rhf5 Rg2 Nc7 Nc6 d8N+ Kb6 Nb7 Ncd8 Rce5 Kc6 Na8 Qc7 Rb5 Qc8 Rbc5+
3qN1n1/qBB1qN2/n2B2k1/nN1Q1R1r/1n4bP/2R1bR1N/n2r1Rr1/K7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 a5 Kd2 f5 Kc3 Kf7 b4 c5 Kb2 g5 e4 g3 h4 c4 d6 g2 d5 g4 b6 g3 d7 f3 b5 f4 b7 a4 d6 f2 b6 a3+ Ka2 c3 e5 c2 e6+ Kg6 e7 f3 e8N Rh5 Nh3 g1Q Bb5 f1N Bc6 g2 Qd5 f2 Rh2 Nd2 Nc3 f1Q Nb5 Na6 b8R Qe2 b7 Nb3 Bf4 Bh6 Rf1 Na5 Rf3 c1N+ Ka1 Qa7 Be5 g1R Rhf2 a2 Rf5 Qg5 d8R Rg2 d7 Qgd2 Bd6 Qe7 Nf6 Bf4 Rf8 Be3 d8N Qd1 R5f3 Bg4 Nf7 Qd3 Rbe8 Rd8 b8B Qd1 Bb7 Rd7 Kb2 a1N Rc8 Nc2 Bbc7 Ncb4 Ka1 Qd3 Ne8 Nca2 Bd8 Qdd4+ Rc3 Qdf6 B8c7 Qd8 Nfg5 Qe5 R8f5 Qee7 Bc5 Rd6 Nf7 Rd7 Qd3 Rd4 B5d6 Rd5 Qe4 Rd2 Qd5
1Rn1K2R/5Q2/nbB1bqN1/NRnNn1q1/2PR1nq1/5rb1/3B4/Bk2N2r b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 b4 e5 f4 d5 c4 d3 g5 h3 g6 d2 f6 h2 f5 a4 b6 d4 b7 d3 g7 a3 f7 a2 f6 Na6 b8N Be6 b5 Ne7 g8R Nc8 b6 Bc5 b7 Bb6 Qb3 d1Q+ Kg5 h5 Kg6 h4 f8N h3 f7 d2 Qa4 Qf3 Kg7 d1Q Qa5 Qg5+ Ng6 Qff6+ Kf8 Qdg4 Ne2 Kd3 Qa4 e4 Na3 e3 Nc3+ e2 Bg2 e1B Ke8 Bg3 Rb1 a1N f8B Nb3 Nd5 Nbc5 Nc2 Rh6 Rf1 h1N Nc6 h2 b8R Nf2 Na5 h1N Rb5 Nh3 Bg7 N1f2 Rh8 Nf4 Bd2 Rh1 Rd1 Ra7 Qa1 Rf7 Qe5 Qe2 Qd6 Ng4 Qe7 Ne5 Qf8 Qeg4 Qg8 Rb7 Qf7 Rc7 Nde3 Rd7 Bc6 Rd4 Nd5 Re4 Re1 Re3 Rf1 Rf3 Ne1+ Ke2 Rf2+ Kd1 Re2 Bd8 Re4 Bb6 Ng2 Kc2 Rd4 Nb3 Ne1+ Kb2 Bf8 Kb1 Bfb4 Nbc5 Bbc3+ Nb3 Bb2 Nbc5 Ba1+
2r5/nrRbB2q/4Q3/qnB2N1n/bR1qNkrB/3q2PK/6B1/3R1NbR b - - 0 1 illegal: No possible last move, all moves rejected
1K1Rr2n/2N1r1q1/1Rq4r/1b6/1qbBBknR/PNN3Q1/4q2b/1R1Bn2B b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 f5+ Kd3 b5 g4 h5 e4 h4 a3 h3 g6 h2 g5 c4+ Kc2 c3 Kd3 f3 g7 c2 g6 f2 Nf3 b3 Bg2 f1Q+ Ke3 b4 Kf4 b2 Qd3 b3 Be3 c1N Nc3 Ne7 g8B b1R g7 b2 Bh7 Nd7 g8B Qe2 Nd2 Qc7 Nb3 Nf6 Bg1 Qa7 Qg3 Be6 Bg6 Re8 e5+ Kc7 B8h7 Ng4 d6+ Kd7 Ba8 Bc4 Bh5 Ke6 d7 Bb5 B7g6 Rh6 d8R Bg7 Rb8 Nd3+ Kg5 f4 Bge4 Rf1 Rb1 f3 Bab7 Ne1 Kf4 f2 d5+ Kd7 e6+ Kd6 Ba8 Ng6+ Kf5+ Be5 e7 Nh8 Rb6+ Kd7 d6 Qb7 Kg5 Ke6 d7+ Bd6 d8R Qc7 Ra1 b1Q Bab7 Qbb2 Rb1 Qcc4 Bbc6 Qb4 Ba8 Nc2 Bab7 Re1 Bbc6 f1B Bd4 Qf3 Ba8 Bfc4 Bab7 Re2 Bbc6 Ne1 Bb7 Rf8 e8N Re3 Ba8 Qfe2 Bab7 Rf7 Ba8 Re7 Bab7 Ne5 Kf4 Qa1 Nc7+ Kf6 Rg1 h1Q Bbc6 Qhg2 Rh1 Qab2 Rh4 Qbc2 Qf2 Qg7 Bh1 Qcg6 Bce4 Qe8 B5f3 Qc6 Qh2 Kf7 Qg1 Ng4+ Kf5 Bh2 Qg3 Qg2 Bd1 Qe2 Bd3 R3e6 Bde4 Re8 Kf4 R6e7 Ne6 Nf6 Ke5 Qc8 Bc5 Ng4+ Kd6 Kf6 Nf4 Qa8 Ne6 Bd7 Kc7 Bdb5+ Rd7 Qd5 Bg1 Qdc5+ Kb7 Qd6 Nc7 Kg5 Rd8 Qdg6 Kb8 Qc6 Qh3 Kf4 Bd4 Qg8 Qg2 Qg7 Qg3+
1k4B1/4NnqB/Q1RRrn1R/1K2P3/5R1q/1b1Nr1r1/2rb1B2/1n1Nq1Bb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc3 f5 Kc4 a5 e4 c5 g4 Kc7 b4 a4 g5 a3 g6 f3 g7 f2 Qe1 f4 Ne2 f3 Bh6 h3 Be3 h4 Nc1 h2 Qe2 a2 Nc3 h3 Nd1 Nh6 g8B Qh4 Nd3 Nd7 d6+ Kb8 b6 Nf7 b7 Ra3 d5 Nf6 b5 Bh6 Rc1 Be6 d7 a1Q d8N Ra6 Bg2 f1N Bg1 f2 Rc2 Bd2 Nc6+ Kc7 Bh7 Rg8 b8R Rg3 Rf8 Kb7 b6 Qc3+ Kb5 c4 Nd8+ Kb8 b7 Qe5 Rc1 c3 Rc2 Qc7 d6 Bb3 d7 Re6 e5 Re3 Rc1 c2 Bge4 Rg3 Bg8 Re3 Beh7 Rg3 Ra1 c1R Ra6 Rc2 Rd6 Bc1 Rb6 Nd2 Rc6 Nb1 Qf1 Bd2 Qe2 Ka7 b8B+ Ka8 Ba7 f1Q Baf2 Kb8 Rc5 Qe1 Nc6+ Kb7 Ne7 Ka7 Nc8+ Kb8 d8R Qe7 Rd6 Re3 Rfd8 Qf8 R8d7 Qg7 Ne7 Rg3 Bd4 Re3 Rcc6 Rg3 Bgf2 Re3 Rf1 h1R Bg1 h2 Rf4 Rg3 Ra7 Re3 Raa6 Rg3 Bgf2 Rf1 Bg1 Rff3 Bdf2 h1B Qe4 Re3 Qa4 Qf8 Qa2 Qd8 Qa4 Qc7 Rab6+ Qb7 Qa6 Nh6 Rc7 Nd5 Nc8 Re8 Rg6 Re7 Rcc4 Re6 Rc7 Nf6 Rd7 Nf7 Rh6 Nh8 Rd6 Kc7 Rf5 Qa7 Rbc6+ Kb8 Rf3 Qg7 Rf4 Nf7 Ne7
3n1RQ1/2n1n1KB/Rk1BNNR1/b3N1nb/1b2qrb1/2nb2r1/2P3B1/6NB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 Kf3 a5 Ke4 d5+ Ke5 Kd7 e4 Kc7 b4 f5 g4 a4 g6 h4 g5 a3 g7 f3 g6 a2 Nh3 f2 Rh2 f4 Qh5 f3 Qh7 d3 Qh5 d4 Nd2 Kb6 Nf4 h3 Bg2 f1B Ne6 f2 Nf3 d2 Qh7 d1B Ba3 d3 Ng1 Ne7 Kf6 d2 g8N Qd5 e5 Nbc6 g7 Qe4 Bh1 Bg4 Rg2 Bh5 Rg6 d1N Kf7 h2 Nf6 Ra7 g8B Nc3 Qg7 Bd7 Bh7 Bd3 Qg8 f1N Bg2 Ra4 Bh1 Kb7 b6 Ne3 b5 Ne3d5 Bd6 Nc7 Bg2 Qf5 Bh1 Rf4 Bg2 Qe4 Bh1 Kb8 b7 Ka7 b8N Bc8 Bg2 h1N Nd7 Nf2 b6+ Ka6 b7 Nh3 b8R Ka5 Rab1 a1B R1b6 Bb2 Bh1 Ba3 Bg2 Bb4 Bh1 Bh6 Bg2 Bg5 Kg7 Bh4 Bh1 Be1 Bg2 Ng5 Bh1 Bb7 Rf8 Bc8 Ra6+ Kb5 Nec5 Nd8 e6 Bd2 Ne5 Bd7 Ra3 Kb6 Bg2 Ned5 e7 Bdg4 e8B Ne7 Bc6 Be1 Ne6 Bd2 Qf7 Rg8+ Kh6 Rg7 Qg8 Nb1 Ra7 Ba5 Bd5 Bdb4 Ba8 Nc3 Bh1 Qf5 Bag2 Qe4 Ra6+ Kb5 Bf3 Bf5 Qf7 Nh3 Bfg2 Rg8 Rg4 Rg5 Ra8 Kb6 Qg8 Rg7 Rh4 Rg3 Rg4 Na6 Ra7 Nc7 Rg6 Ng5 Kg7 Bfg4 Ra6+
Nnkn2b1/3n1R1R/1Bb2R1R/r3bN2/2b1N3/q2r2PB/n1K1QBNn/7b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 c5 e4 a5 b4 h5 e5 f5 g3 f3 b6 f4 d6 c4 b7 c3+ Kd3 c2 b5 a4 b6 f2 d5 a3 Kc3 a2 Nh3 f3 Nd2 Nh6 Qe2 Qe7 Ne4 Bg7 Be3 c1N Nf4 h3 Ng2 h4 Kc2 h2 e6+ Kd8 d7 h3 Rb1 Nf7 Rb3 Ra7 Rc3 Bf6 Rc6 Qa3 Bc5 Be5 Rd6 Nc6 b8R Ra5 Rb7 Nb8 Ra7 Ba6 b7 Bc4 e7+ Kc7 e8R Nd8 Rf6 Rh7 Rh8 a1N+ Kd2 Rh5 Rh7 Nab3+ Kc2 Na2 Be3 Nc5 d6+ Kc6 Rhh6 Bg8 Rh7 Bf4 Rhh6 Rd5 Rh7 Rd3 Rhf7 Nde6 d8B Be5 Bb6 Ncd7 Rh7 Nd8 Rhh6 Nf8 Bec5 Kd7 Bd4 Na6 b8N+ Kc8 Nc6 Nb8 Raf7 Nfd7 Ne7+ Kb7 Rg1 h1B Nf5 h2 Nf4 Ndc6 Bh3 Kc8 Ng2 Nd8 Rb1 f1N Bf2 Bc3 Rb5 Bd4 Re5 Ba1 Ree7 Be5 Bfc5 f2 Rfh7 Nd2 Ref7 f1B Be3 Nf3 Bf2 Rd1 Qe1 Bc4 Qf1 Nf8 Qe2 Rd3 d7+ Kb7 Bbe3 Bc3 Ne1 Ndc6 d8N+ Kc8 Bb6 Be5 Ng5 Nfd7 Nde6 Nd8 Nc7 Bg2 Na8 h1B Qe4 Nh2 Qe2 Bgd5 Ne4 Bc6 Ng2
2rBrn2/3R2N1/r6b/2PN1Qr1/nR2b3/q3N1BB/R1n1K1bk/2BrR2b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 g4 Kf6 f4 h5 b4 e5 b6 a5 b7 d5 b5 a4 b6 a3 c5 e4 Bb2 h3 Be2 e3 Bf1 h2 Bg2 e2 Nc3 a2 Nf3 d3 Qc2 d4 Bf1 h4 Ng1 h3 Nd1 Nd7 b8B Ra6 b7 Bh6 Bc1 Nf8 Ne3 d2+ Kf2 e1N Ne2 d1R Nc3 Ne7 Ke2 Nd5 Rg1 h1B g5+ Kg7 g6 Kf6 g7 h2 g8R Qa5 Qd3 Nb6 Bh3 Qa3 R8g7 Nc2 Re1 Na4 Rd7 Bg2 Bd6 h1B b8R Rg8 Rb4 Rg5 Bc7 Re6 Bd8+ Re7 Qe4 Bb7 Qd3 Bbe4 Ncd5+ Kf7 f6 Kg6 f5+ Kh5 f7 Kh4 f6 Kg3 Rf1 Re8 Re1 Bh7 Qf5 Kh2 Qf3 Be4 Qf5 Ng6 f8B d3+ Kf2 d2 f7 Ne5 Bg7 Ng6 Ke2 Nf8 Bgf6 Rg8 Bh4 Rg5 Rab1 a1R R1b2 Rb1 Ra2 Ra1 Bb2 Rdb1 Bc1 d1R Bf2 Ng6 f8N Rb3 Ne6 Nf8 Rc4 Rb8 Ng7 Rc8 Rd4 Rb1 Bh4 Rb6 Rb4 Ra6 Bg3+
Q4Rb1/Pr2nB1N/2NRNr2/b1q5/K5b1/1n1Nr1R1/1r4nb/BkbRB3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 h5 g4 e5 a4 b5 f4 e4 g5 c4+ Kb2 b3 Ka3 b4+ Kb2 h3 a5 h4 g6 e3 a6 h2 g7 e2 f6 e1B a7 h3 f7 Qc7 f5 Na6 f6 Nc5 Ra4 Rh6 Qd3 Ne7 g8R Bg4 Nc3 Re8 Bd2 Qc8 Nd1 c3+ Ka1 b2+ Ka2 b1R Ra6+ Qc6 Nb2 b3+ Ka3 c2 Qe4 c1B Ne2 Ne6 Kb4 Nf4 Nd3 Ng2 Nef4 b2 Ne6 Rb8+ Ka3 Rb7 Bc3 Bg7 f8N Qb6 f7 Be5 Ba5 Rf6 Ka4 Bb4 Rg1 h1R Nh7 h2 f8R Bg3 Be2 Bgf4 Rd1 Re1 Rg7 h1B Rg5 Bh2 Qf3 Bh3 Rg3 Bg4 Bf1 Re3 Be2 Bc5 Be1 Bb4 Qe4 Ba5 Bf3 Bf5 Bh5 Bg4 Bf7 Ng6 Nd8 Ne7 Nc6 Qc5 Qf3 Kc7 d6+ Kd7 Bh5 Ke6 d7 Kd6 d8B Ke6 Qe2 Kf5 d5 Ke4 d6 Rg6 d7 Rf6 Nb8 Kd4 Rd6+ Kc4 Bf2 Kc3 Qf3 Kc2 Bf7 Ne1 Qc6 Bd5 Bb6 Ng2 d8N Ba2 Be1 Bae6 Bh5 Bg8 Bf7 Ra1+ Ba2 b1N Ne6 Nd2 Qe4 Rb1 Nc6 Nb3 Qd5 Qc3 Bd4 Qc5 Ba1 Rb2 Nce5 Rb8 Qa8 Rb7 Nc6 Nd4 Bd5 Kb1 Neg5 Nb3 Bf7 Rh6 Ne6 Rg6 Ncb4 Rf6 Nc6
1B3R2/b3b2R/3q1b1r/RKnBr2N/RBrPr3/N2N1k2/2b4q/BbnQ4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 g4 Kf6 e4 Kg5 Ke2 a5 Kd3 h5 Kc4 c5 d6 f5 d7 f3 e5 Kf4 b6 a4 g5 h3 b5 h4 e6 a3 e7 h2 e8R h3 b7 a2 g6 f2 b6 Rh6 g7 Be7 Kb5 c4 Ba3 c3 d3 c2 Kc4 c1B Bg2 f1R Qe2 Na6 b8R Be3 b7 Rc1+ Kb5 Ba7 Be4 Nb4 Nf3 Rc4 Qc2 Nf6 Rd1 h1R g8N h2 Bc6 Ne4 Qb2 Re1 Qd4 h1Q Rd2 Qh2 Ne5 Kg3 Rc2 f4 Rf8 f3 Bd5 f2 Nf6 f1B Rb2 Qc7 d8B Qd6 Ba5 Be2 Nh5+ Kg2 Rf7 Bf5 Rbf8 Re8 b8B Bh7 Rb3 Bd1 Bb2 Bc2 Ra3 Re2 Ra4 Re1 Be6 Nc5 Na3 Re4 Bd5 Bf5 Rh7 Bg6 Raf1 a1B R1f5 Na2 Bb4 Nc1 Qg1+ Kh3 Qd1 Kg2 Ng4 Bb1 Nf2 Bc2 Bh8 Baf6 Bg7 Bh4 Ba1 Bhf6 d4 Bb1 Rf3 Re5 Ra5 Bgc2 Re3+ Re4 Re2 Kf3 Nd3 Bd8 Ra4 Re5 Ra5 Be7 Ra4 Bb3 Ra2+ Ne2 Ra5 Kg2 Nc2 Kf3 Qd2 Nc1 R2a4 Rc3 Na3 B3c2 Qe1 Rc4 Qd1+
q4n2/2k1Nn2/2n1b1R1/bb3BB1/1rPR1R2/3bK1R1/1b1NN2B/2rqBQn1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 c4 Kd7 g4 a5 f4 h5 b4 e5 b6 d3+ Ke3 d2 b7 a4 g5 a3 g6 e4 f6 h3 f7 h2 b5 a2 b6 d4+ Kf2 h4 g7 e3+ Ke2 d3+ Kf3 h3 f5 e2 f6 e1N+ Ke4 Ne7 g8R Nf3 Kf4 Nbc6 b8B Ra4 b7 Ng5 Na3 Rb4 Rb1 a1B Qf3 d1Q Rb2 d2 Bd3 Ng6+ Ke3 Rh4 Ra2 Bb2 Bg3 Rg4 Bf2 Kc7 Bf5 Be6 Ne2 Qa8 Nb1 Rg1 Ra6 Be7 f8R Nf7 b8N Bd8 Be1 Rf1 Rg1 h1B Rg4 h2 Rd4 Rg1 Qh3 Be4 Qf1 h1B Ra3 Bd3 Rc3 Na5 Nc6 Bhe4 Ne7 Bc6 Ra3 Bb5 Rb3 Nc6 Rc3 Nge5 Rg6 Nd7 Ra3 Kb7 Rc3 Ba5 Rb3 Kc7 Rc3 Nfd8 f7 Rh1 Re8 Rg1 f8B Nf7 Bh6 Rh1 Bg5 Nf8 Red8 Qc2 Rf4 d1N+ Kf3 Qa4 Nd2 Nf2 Ke3 Nh3 Rdd4 Ng1 Ra3 Ba1 Bb2 Qd1 Bc3 Bb2 Bg3 Bd5 Bh2 Be6 Qh3 Qe1 Nb3 Nf3 Ra1 Qg3 Rg1 Qe1 Rg3 Rf1 Qg2 Ng1 Qf2 Qa1 Qf3 Rb1 Qf1 Qa4 Be1 Rc1 Nd2 Qc2 Rg7 Qd1 Rg6
3Bq1nN/2Br2r1/B1b1n2B/K1N5/1rq3R1/N1b3b1/R2NP2Q/Rr1k2nb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 d4 Kd6 Kd2 c5 Kc3 f5 b4 h5 g5 a5 g6 a4 g7 a3 b6 c4 b5 f3 Kb4 f4 b7 f2 b6 h3 Rh2 h4 Bg2 f1R Kb5 f3 Bg5 c3 Qe1 a2 Bh6 c2 Na3 c1Q Qc3 f2 Qe1 Nc6 b8N Nf6 g8R Bd7 b7 Ra4 Nc2 Rh7 Bh1 Rb4+ Ka6 Rg7 Rb1 a1B Qd2 Rd1 Rg2 f1R Rg4 h2 Nf3 h3 Bg2 Be8 Nd7 h1N Nc5 Qc8 Rh8 Nd8 Qd3 Bb2 Ra1 h2 Qd2 Nf2 Qf4+ Ke7 Qg3 h1B Qh2 Ne6 d6+ Kf7 d7 Bd6 d5 Nh3 Rg8 Bg3 d6 Ng1 Rh8 Qd8 b8B Qf4 Rg8 Bc3 Bc7 Rd5 Rh8 Rfb1 Rg8 Nh7 Rh8 Kf6 Rg8 Qe7 d8N Kf5 d7 Nf6 Nf7 Qd4 Rf8 Ng8 Nh8+ Qf7 d8B Ba4 Bdg5 Rd7 Ra8 Qe8 Bgd8 Bb5+ Kb6 Qc4 R8a2 Ba4+ Ka5 Bb5 Nfe1 Ba4 Bb7 Bac6 Bb6 Ke5 Ba6 Kd5 Na3 Ke5 Rg5+ Kd4 Bbc7 Ke3 Nf3 Bd4 Qh4 Bc3 Rg4+ Kf2 Nd2 Ke1 Qh3 Kd1 Qh2
bNr2R2/N2R1nb1/1b2br1R/3B2nP/1BqrQ2r/K3B3/3qnN1B/kN6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 a5 h4 f5 e4 g5 b6 g3 b7 a4+ Ka2 g4 b4 a3 b5 g2 b6 c4 Rh2 g3 Nd2 f3 Nb3 f4 Qc2 f2 Na5 f3 Qd2 c3 Qe2 c2 Nb3 Nd7 b8N Ne5 b7 Nf6 Nh3 g1N Bg2 f1B Be3 c1Q Nd2 f2 Nb1 Bg7 Qd3 Nf7 e5+ Ke7 d6+ Ke6 d7 Nh7 Qe4 Nhg5 Nc6 Ne2 b8N Qg8 d8B Qd2+ Kb3 a2 Be7 Rh6 Bh1 g2 Bb4 g1B Na7 Bg2 Ka3 f1R Nf2 Rd1 h5 Rf6 Rh3 Bd7 Rg3 Qc8 Rf3 Qc4 Rg3 Nf3 Rg6 N3g5 Rh6 Bc8 Qh7 Kd5 e6 Be4 e7 Be6 e8R Bf3 Rf8 Bg2 Nc6 Rc8 Qc2 Be4 Nb8 Bf3 Nd3 Ke4 d5 Bg2 d6 Bf2 Bf4 Kd4 d7 Ba8 Bd5 Rh1 d8B Rh4 Bdc7 Bg1 Nc3 Be3 Rd1 a1R+ Kb2 Ra6 Nb1 Rd6 Ka3 Bg1 Nf2 Rdd8 Qg6 Rd6 Ne4 Kd3 Qh7 Bb6 Be3 Kc2 Qf5 Rd7 Bh2 Rd6 Qf4 Rd7 Nf2 Rd6 Ka4 Kb2 Qe4 Ka1 Ka3 Rd7 Bb7 Rd4 Bd5 Qc5 Rc1 Qb5 Rc7 Qc4 Rd7
1qkBKB1R/2q5/NPBr1Q1N/3bRR1N/5n2/2bqN2n/rbn3n1/R4q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 g5 h3 b6 a3 g6 c3 g7 a2 b5 h4 b7 c2 d6 h2 b6 h3 d5 Rh6 Bg2 Ne7 g8N Bg7 Qd2 Na6 Qe3 Nb4 Qf2 Ng6 Ba3 c1Q Nc3 Nc2 Nd1 Qb1 Qh4 Qc7 Ne2 Qb8 Rg1 h1Q Ne3 h2 Ng3 Qb3 Rgf1 Qd3 Rf2 Qc1 Nh5 h1N Qf6 Ra4 Rf1 Nf2 Bh1 Nh3 e6+ Ke8 e7 Be6 Bb4 Kd7 e8R Bf7 Re5 Ra8 Kg2 f3+ Kg3 f4+ Kg4 f2 Be4 f3 Kf5 Ngf4 Ba3 Qc7 b8N+ Kc8 Na6 Qb8 Bc5 Rg6 Nh6 Ra7 Rb1 a1B d7+ Kb7 d8R Bb2 d6+ Bd5 d7 Bh8 Nc7 Ra2 Ra1 Bg7 Rg8 Bc3 d8B Kc8 Rf8 Bh8 Rh1 f1N Na6 f2 Rf7 Bb2 Bf8 Bg7 Qh4 Rd6 Qf6 Ng2 Kg6 Ng3 Rf5 f1Q Re7 Ne2 Ree5 Bb7 Kf7 Bd5+ Ke8 Nef4 Qf7 Nce1 Qe7 Qcc7 Qf6 Nc2 Bf3 Bb3 Bc6 Bd5 Rh2 Qb1 Re7 Bf3 Qe5 Qd4 Nf6 Bd5 Nhg4 Ng5 Rh8 Qf1 Nh6 Qdd3 Nh5 Ngh3 Qc3 Bd4 Re4 Bf6 Qe5 Bg7 Qe7 Bge5 Qf6 Bec3 Ree5
1n6/qBnb1n1b/1nRBrbQ1/1R3N2/1R2BK2/n5nP/3kb1Br/3R2NN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 e4 Ke5 c4 g5 b4 f5 h6 a5 h7 d5 b6 a4 b7 g4+ Kg2 d3 b5 Kd4 c5 d2 c6 Ke3 e5 d4 b6 d3 e6 a3 c7 f3+ Kg3 a2 e7 f4+ Kh4 f2 Kg5 g3 Ba3 g2 Bc1 f3 Qa4 Qd4 e8B Nf6 Qa5 Ra6 Ne2 g1N Bd7 Nd5 Ng3 Bg7 Bf5 Bd7 c8B Nc7 Bg2 f1B Be4 f2 Nc3 Be2 Ba3 d1N Qf5 f1N Bd6 d2 Qg6 Nb2 Rc1 d1B Rc2 Bd3 Nce2 a1N Rc6 Kd2 Kf4 Nf3 Rg1 Ne5 Nh1 Nbc4 h3 Rg8 h8R Bf6 Rh5 Nf7 Rb5 Ng3 Re1 Rg7 Ng1 B1e2 Rf1 Nc2 Rd1+ Kc3 Rb4 Ra2 Rb5 Na3 Rb4 Rg8 Rb5 Re8 Rb4 Nba6 b8R Re6 b7 Qc5 Ra8 Rd2 b8N Qa7 Bb7 Ra2 Rc5 Rb2 Nc6 Nb8 Rcb5 Nb6 Ne7 Kc2 Nf5 Ra2 Rc1+ Kd2 Rc6 Nac4 Nh6 Kc2 Qh7 Qa6 Bf5 Bg4 Bf1 Kc3 Qg8 Rh2 Bg2 Kd2 Bh7 Bde2 Bhe4 Bf5 Qh7 Bg6 Nf5 Qa5 Qg8 Bh7 Qg6 Qa1 Ra3 Qa2 Rab3 Qa7 Rb1 Na3 Rd1+
1nN5/2k2q1B/R1pR1r1r/3r2N1/bb1qN1qB/Q3R1Pb/5Nn1/2B2nRK b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 f5 b4 h5 e4 a5 d6 f3 g3 c6 e5 a4 d5 a3 b6 h3 b5 h4 b7 f4 b6 a2 Bd3 h2 Bh7 h3 Qa4 Ra6 Nc3 Ne7 Ne4 Qc7 Qa3 Ra5 e6+ Kd8 d7 Nf5 Kf1 f2 Nf3 Rc5 Rg1 h1B Nfg5 h2 Nh3 Nh4 Nhg5 Na6 b8N Bf3 b7 Bd1 Nh3 h1R Neg5 Qd6 e7+ Kc7 d8R Ng2 e8R Qd7 Re3 Qg4 Nd7 Nb8 Nf6 Ba4 Nfe4 Rg8 Rd6 Rg6 Qb4 Rf6 Qa3 Na6 b8N Rb5 Nd7 Nb8 Rb1 a1Q Nb6 Qd4 Ra1 Bf5 Nc8 Rh2 Re6 Bb4 d6+ Kd7 Nc3 Rd5 Nce4 Kd8 d7 Kc7 Rd6 Be6 Nc3 Bf5 Nge4 Rh1 Nhg5 Rhh6 Ra2 Qh4 Nd1 Bh3 Ke2 f1N Kf2 f3 d8B+ Kb7 Rh1 Qf4 Kg1 Qg4 Be7 Kc7 Ra1 Nd2 Kh2 f2 Rg1 f1Q Ndf2 Qfc4 Kh1 Nf1 Qb3 Bb5 Ra6 Ba4 Qb2 Rc5 Qc3 Qf7 Qa3 Rd5 Nf3 Rfg6 Bh4 Rf6 Nfg5
nB1r3r/R3K2p/BPB1NnR1/7b/N1B2N2/nr5q/4RN2/k1bb1Qqq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 f5 g4 a5 e4 c5 g5 f3 d6 h3 d5 c4 d7 a4 Ke6 f2 d6 c3 g6 h2 e5 a3 b6 a2 g7 f4 b7 f3 Ba6 f1N Bf4 f2 Nh3 c2 Rg1 Kb3 Nc3 h1Q Rg6 Nd2 Qf1 c1Q Na4 Nf6 g8B Nb1 Kf7 Qd1 e6 Bh6 e7 Na3 e8B Qc7 Bh2 Qc3 d8N Nbd7 b8R+ Nb6 d7 Bc1 Ne6 Bb7 d8N Bf3 Beb5 Bh5 Nef4 Qg4 Rc8 Qgg1 Nde6 Qcg3 Rc4 Rd8 Bc6 Na8 Re4 Kc2 b4 Qg4 Qe1 f1B b5 Be2 b6 Bd1 Nf2 Qh3 Ke7 Kb3 Qf1 Kc2 Rb1 a1R Re3 Ra2 Ra1 Rb2 Ra2 Kb1 Re2 Rd5 Ng5 Rd4 Bgc4 Rb3 Nge6 Rd5 Rad2 Rdd8 Rd7 Ka1 Ra7 Qd3 N4h3 Qdf3 Bb8 Qfg3 Nhf4 Qgh4 B4b5 Q4h3 Bc4
nB2N2r/N2P2BR/3K4/nk3br1/2q4n/2bBQ1pB/1b1RNq1R/2R1r1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 g5 e4 a5 h4 c5 d4 f5 b6 g3+ Kf3 c4 b7 a4 d6 Kc6 e5 g2 e6 c3 d5+ Kb6 b5 a3 h5 a2 d7 c2 h6 Ra6 d6 Ra5 h7 Ne7 Qe2 Bg7 Bb2 c1N Nc3 Qf8 d8R Na6 b8N Ng6 e7 Nb3 e8B Nc7 Nc6 Na8 Rc1 a1B Ne4 Bc3 Rh2 Be6 Na7 g4+ Kf2 g3+ Kf3 Qf6 Qe3+ Qd4 Ne2 g1Q Nf6 Bc8 Qe6 Qc4 Bh3 Kc5 b6 Kb4 Nc6+ Kb5 b7 Bd7 b8B Bc8 Ba3 Bab2 Qe3 Bd7 Bf7 Bc8 Bd5 Be6 Be4 Bd7 Bd3 Be6 Re1 Bc8 Nc1 Nh4+ Ke2 Ka4 Ne8 Rf8 h8R Rg8 Rh5 Rh8 Na7 Re5 Rd7 Na5 Rhh7 Rd5 Rdf7 f3+ Kd1 f2 Kc2 Be6 d7 f1R Bf8 f4 Bg7 f3 Ree2 f2 Rd2 Rg5 Ne2 Rb1 Rf6 f1Q Rf8 Qe1 Rf1 Qef2 Re1 Nc6 Rf1 Ka5 Rfd1 Bf5 Rf1 Qa6 Kb3 Qc8 Kc4 Ka6 Rc2 Na5+ Kd5+ Qc4+ Kd6 Rc1 Rd1 Rb1 Rdd2 Re1 Nc6 Kb5 Na7+ Kb4 Rc1 Ka4 Nc8 Kb5 Na7+
3BK2n/1rqp2b1/qrP1NQBN/2Bb1R2/rn3R2/2Bb4/2kq2R1/nN3R2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 g4 h5 c4 h3 f4 d3 b6 h2 g5 a4 b7 a3 f6 d2 f7 h4 f5 a2 g6 h3 f6 Rh6 b5 Nc6 b8R Bg7 f8B e5 Kd6 Rh8 b6 Ra5 c5 Ke3 b7 e4 f7 Nb4 c6 Ne7 Ne2 Kd3 Rg1 h1B Bb2 e3 Bc3 h2 Nd4+ e2 Rg2 Ra4 Ne6 Rh4 Qc1 d1Q Qg5 Qd2 Qf6 Qa5 Ra8 Qa6 b8B Kc2+ Kc7 e1Q Kd8 Qee2 Ke8 Qe5 Bc7 Qea5 Bd8 Qc7 Bb5 Rh5 Be2 Rb5 Bh5 Rb6 Ra7 Qa5 Ra8 Ba6 Rb8 Bd3 Rb7 Bh8 g7 Qa6 g8N Ng6 Nh6 Bg7 Bc5 Nh8 Rb8 Rb7 f8R Rb6 Bg6 Rb7 Rg1 Bd5 Rg2 h1R Ra8 Qab6 Ra5 Qa6 Qe5 Re1 Rf4 Re4 Qf6 Rc4 Bg1 Rc5 Bf2 Rcb5 Bc5 R5b6 Na3+ Kb3 Raf1 a1N Nb1 Kc2 Bf2 B5e4 Raf5 Bd5 Bc5
3NnRrQ/r2R4/2P1KB2/2B1R1bB/rb5B/n1Nnkpq1/6bN/3n1nR1 b - - 0 1 illegal: No possible last move
2Rn4/B3nb1r/2b2r1N/Q4Bqq/2BR1q2/1pNKNbb1/1P5k/b1R2RB1 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 Ke2 Kf7 g4 Kf6 f4 h5 d4 c5 d6 b5 d5 a5 d7 e5 d6 b4 Qa4 h3 Qa3 b3 Ke3 a4 Nf3 e4 Ba6 h4 Ne5 h2 Nc6 h3 Ke2 e3 Nc3 c4 Ne5 Nb4 Rf1 h1B Bb5 Qc7 d8R h2 d7 Bd6 Ba6 Bc6 g5+ Kg7 g6 Kf6 g7 h1B Bd2 Ne7 g8B Rh7 Rac1 Qa5 Qa1 a3 Be6 a2 Be1 Bhe4 Bb5 Ra6 Bf2 B8b7 Rc8 Bed5 d8N Rb6 Bd7 Bf7 Ba6 Qd5 Rfd1 Qg2 Rd4 Qg5 Bb5 Nbd5 Ba6 Nc7 Bb5 Ne6 Ng4+ Kg7 f6+ Kg6 f5+ Kh5 Ba6 Bg3 Bb5 Kh4 Ba6 Bg8 f7 Kh3 f8B Bf7 f6 Kg2 Bh6 Qh5 Bf4 Qg5 Bb8 Qf4 Ne4 c3 Kd3 e2 Ne3+ Kh2 Ba7 e1Q Bc4 c2 Nc3 Qh1 Rd5 Ng5 Bf5 Ne6 Rd4 Qhf3 Rf1 Qh5 Rc1 Bg6 Nf7 Nd8 Nh6 Bf7 Qb1 a1B Qa2 Bf3 Qa3 Bbc6 Qa5 Bg6 f7 Qfg5 f8R Bf7 Rf1 c1Q Rg8 Qf4 Rc7 Bh4 Rgg1 Bg3 Rc8 Qfg5 Ned5 Qcf4 Ne3 Bb5 Rc1 Rf6 Rgf1 Bbc6 Bg1+
B2qNRKb/4r1n1/4N1kB/3RRp2/1rbnn2N/qn2n3/2P1r1Q1/BR4B1 b - - 0 1 illegal: No possible last move
R2Q3N/b2B4/q3R1Np/b1r3Nn/R5Rb/3qBn1q/Pk1B1b1N/r2b3K b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 g4 Kf7 f4 e5 Kf2 b5 Kg2 c5 d4 c4 f5 e3 f6 e4 d6 Ke6 g6 Kd5 d7 c3 g7 b3 f7 b4 g5 e2 g6 Kc4 d5 e3 d6 b2 Rh5 b3 Kh1 c2 Rh3 Nf6 g8R Qa5 d8R Bg4 d7 Nc6 g7 Nd4 Rg3 Qa6 Qd2 Bc5 f8N Rc8 Ng6 Ba7 Rg2 Rc5 Nf3 Nh5 Nh2 Nf3 Nc3 b1Q Rgf8 b2 g8N h6 N8e7 Rg8 Rg3 Rg7 Bg2 e1B Bh3 e2 Ne4 Bf2 Ng5 e1B Nh8 Rf7 Qd1 Kc3 Be3 c1B Neg6 Qbd3 Ra8 b1Q d8B Bcd2 Ba5+ Kb2 Rfe8 Qc3 Re4 Qbd3 Ra4 Rf6 Rg1 Bh4 Rc1 Bef2 Re1 Qb3 Rcc4 Rff5 Rf4 Rc1 Rfe4 Ra1 Rg1 Rc5 Re6 Bc1 Be1 Bd2 Rg2 Ba5 B1d2 Ne5 Rg1 Be2 Rgg4 Nf3 Qf1 Bd1 Qe2 Qdd6 Qd3 Qg3 Qd8 Qbd3 Bg2 Qh3 Bf1 Qd7 Bb5 Qd3 Bd7
3N2nb/2r1NRNK/2Rb2p1/kP1r1Rqb/4N3/BB1B1b2/2B2Q1q/1bn2q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 Kd7 e4 Kc7 b4 Kb6 c4 a5 h4 f5 h6 f3 h7 f4 c5+ Kb7 c6+ Kb6 e5 a4 c7 f2 e6 f3 h5 a3 e7 a2 e8B Nd7 h6 Bd6 Bg6 Qf8 Qe1 Ngf6 Ba3 Ra5 Nc3 Bb7 c8B Be5 Rh5 Ng8 Nge2 Qe7 Rc1 a1B Rf5 Bd6 Nf4 Qg5 Ne4 Ba8 Be2 f1B Nh5 f2 Ba6 Bg2 Bd1 Bf3 Bb3 f1Q+ Qe2 Qfg1 Qf2 Qh2 Rc3 Ne7 Rc2 Rc8 h8N Ng8 h7 Rc7 Nf7 Bb7 h8R Bc3 Rc1 Nc5+ Kc2 Bc8 Nd8 Nd3 Rh6 Be6 Rf1 Nc1 Bh7 Bf7 Rhf6 Bg6 Rf7 Na2 Kd3 Ba1 Rc1 Bb2 Rc3 Nc1+ Kc2 Qgg3 Rc5 d3+ Kd2 Qe5 Ke3 d2 Rc3 d1Q Rc2 Qf1 Rc6+ Ka7 b6+ Ka8 b7+ Ka7 b8N d4+ Kd2 Rd5 Bd3 Qf6 b5 Qg5+ Kc2 Ba1 Rc3 Kb6 Nbc6 Bb2 Ne7 Ka5 Rc6 Bc3 Nf4 Bb2 Kd2 Ba1 Bdc2 d3 Ke3 d2 Bd3 Qf6 Nfe6 d1B Bdc2 Bgh5 Bd3 Bc2 Bg6 Bb1 Bdc2 Qhh3 Bd3 Bb4 Kf4 Qe5+ Kg5 Bd6 Bh7 Bc3 Bbc2 g6 Ng7 Nf6 Kh6 Qhh2 Bg8 Qeg3 Rf8 Qgg2 Be6 Ng8+ Kh7 Qg5 R8f7 Bf6 Ne8 Bh8 Ng7 Rd4 Bec4 Rd5 B4b3
N2qb3/1q1NpB1b/5R2/B1RN3n/1P1bq1Bq/k4N2/5R1Q/rqnr1B1K b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 h5 f4 d5 Kf2 Kd7 g4 Kd6 Kg2 Kc5 f6 Kb4 f7 a5 f5 d3 g5 d4 b6 h3+ Kh2 d2 f6 h4 b3 a4 c5 d3 b7 a3 g6 a2 g7 Na6 b8N Bd7 c6 Nc5 c7 Be8 Qh5 d1Q c8B d2 Bd3 Qf3 Bg4 d1B Bf1 Qb7 Nc3 Bc2 Nd7 Nd3 Bd2 Ka3 Rc1 a1Q Nf3 Qb1 Nd5 Rh7 Kg1 h2+ Kg2 Rh6 N7b6 Ra7 Na8 h3+ Kg3 Rh7 Ba5 Rh8 Rg1 h1Q b4 h2 Rg2 Rh7 Rf2 Rh6 Ne1 Qe4 Nf3 h1Q Qe5 Qh5 Kg2 Qh4 Qh2 Rh5 Kh1 Rf5 Re1 Nc1 Ree2 Bd3 Rc2 Re5 Rc5 Re6 Kg2 Rd6 Kh1 Bc2 Nf4 Rd1 Nd5 Nh6 g8B Bg7 f8N Nf5 f7 Bd4 Nd7 Ng7 f8R Nh5 Rb5 Qe2 B8e6 Bh7 Bf7 Qee4 Rc5 Qdc7 Rg8 Kb3 Bb6 Ra1 Rg6 Qd8 Rf6 Ka3 Ba5
RqrQq1Rb/6n1/b1N2BRk/4r3/nqr1nK1N/8/1Rp2PB1/nN1B1N2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg7 b4 h5 d4 e5 g4 c5 g5 a5 d6 c4 b6 c3 b5 a4 d5 h3 b7 a3 b6 a2 g6 h4 d7 h2 d6 h3 Bb5 c2 Nc3 Rh4 Rb1 a1N Bb2 Ne7 Be2 Na6 b8N Nc5 b7 Kh6 g7 Qe8 d8R Na4 g8B Bg7 d7 Bh8 Na6 Rb8 Nc5 Nf5+ Kd2 Rg4 Bd5 Ng7 Nf3 e3+ Kd3 Ra8 b8N Rc4 Nb3 Ba6 Nc6 Rc8 Rg1 h1N Nbd2 h2 Nf1 Ng3 Nh4 h1Q Bg2 Qh2 Qd2 Ne4 Bd1 Qg3 Ke2 Qf4 Qd4 Qh2 Kf3 e2 Qd5 e1Q Qd6+ Qg6 Rg8 Qd2 Qc7 Qe8 d8R Qd6 Qb6 Qb4 Qd4 Ng5+ Kg4 e4 Qd7 e3+ Qd4 Qh1 Kf4 Ne4 Qd3 e2 Qd4 Rc7 Ra8 e1R Qd2 Rc8 Qd8 Nb3 Ba1 Qh3 Rb2 Qh2+ Kg4 Qc7 Nb1 Qcb6 Kf4 Re3 Ra2 Qb8+ Be5 Na1 Rb2 Q8b7 Bf6 Qb8+ Qc7 Rc5 Qd6 Re5 Qd8 Rc3 Bh3 Rc4 Rg3 Q4b5 Bg2 Qb4 Rg6+
6NR/nb1N2b1/4r3/kBnR1B2/1Bnb2K1/qPN2p2/4qrQ1/R1n1RrB1 b - - 0 1 illegal: No possible last move
1q2B1qb/N2q3N/2Q1kBR1/B2r4/q1b1Pr2/5p2/1bRNnKR1/rB1Rn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 c5 g4 f5 d4 a5 g5 h5 g6 f3 g7 a4 b6 h3 b5 c4 d6+ Ke6 d7 h2 b7 f2+ Ke2 c3 b6 h4 Qc2 a3 Be3 a2 Bd2 f4 Be1 h3 Qd2 c2 Qc3 c1B Nd2 Nh6 g8B+ Nf7 Ngf3 Bg7 Rg1 h1Q Rg2 Bb2 Rc1 a1Q Rc2 Nc6 b8N h2 b7 Qa4 Bh7 Qb6 d8B Ng5 Bg6 Qg1 Bf6 h1Q Be8 Rh5 Qc5 Ra6 Qb5 Bh8 d5+ Kd6 Qc4 Qh3 Qb5 Qd7 Qc4 Na5 Nc6 Nb3 b8R Qbb5 Ra8 Qb8 Na7 Ra5 Qb5 Ba6 Qc4 Qac6 Qb5 Ra1 Qc4 Qa4 Qb5 Nf7 Ng5 Ne5 Nh7 Nd3 Qb7 Bc4 Rg6 Kc5 d6 Nbc1+ Kf3 Rd5 Qc8+ Qdc7 d7 Kd6 d8R+ Qcd7 Qb7 Ke6 Qc6+ Qbd6 Rab8 Ne2 Rb3 Qg5 Ra3 Qg1 Ra2 Qg5 Nb1 Qg1 Ba5 Qg5 Nd2 Qg1 Rh6 Qg8 Rg6 Ne1+ Kg4 Ng3 Bd3 f1R Kh3 Ne2 Kg4 f3 Kh3 Rh1+ Kg4 Nf4 Kg3 Ne2+ Kf2 Rh6 Rc1 Rh3 Bb1 Rh4 Rc8 Rf4 Rd1 Qd8 Rc7 Qb8 Rcg7 Bc3 Rc2 Bb2 Qc7 Qdd8 Rg2 Qe7 R7g6 Qed7 Qc6+
B1qbr2b/NqN1R1B1/4b3/1r3B1b/2k1Pp1K/BRR5/q1NnnNQ1/5n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 a5 g4 c5 g5 h5 b6 f5 g6 a4 b5 a3 g7 a2 b7 f3 b6 c4 Nh3 c3 Qc2 Nc6 b8N Ra5 b7 Rb5 Bg2 Nf6 g8B Be7 Re1 Qa5 Be6 Re8 Na6 Bd8 b8R f4 Na3 Bd7 Bf5 Be6 Nc7 Ne4+ Kf1 Qa6 Nf2 h3 Qd2 h2 Nc2 h1B Ba3+ Rb4 Rab1 a1B Rb3 h4 Rc8 h3 Kg1 h2+ Kf1 Kd7 d6 Rb5 d5 Nd4 Nd1 f2 Na8 Bg5 Bc5 Be7 Nce3 Qa2 Ba3 c2 Rc7+ Kd8 d7 c1Q Rc4 Qc3 Nc2 Bd6 e3 Ke7 d8N Bd7 Nc6+ Kf7 Na7 Bc7 d6 Kf6 Rc6 Ke5 Re2 Bc8 d7 Kd5 d8B Bb2 Bf6 Bd8 Rc7 Qc5 Re7 Be6 Bh8 Qc8 Nc7+ Kc4 Be5 Nc5 Ba8 Bf3 Bf6 Bh5 Kg2 f1N Kh3 Ne4 Kh4 h1Q+ Rh2 Ra5 Rh3 Rb5 Bh8 Qf3 Qg2 Ned2 Nf2 Qfb7 e4 Ne2 Bc3 Bc1 Ba1 Bb2 Rhd3 Bh8 Bg7 Ng1 Rf3 Ne2 Rfc3+
1q2B1NB/1r4R1/1R3Bq1/B3r1R1/r2pnK1b/4P3/q1k1qb1N/2nbQNN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 h4 Ke5 c4 g5 b4 d5 h6 a5 c5 f5 h5 d3 h7 Kd4 h6 g4+ Kg2 a4 c6 a3 b6 f3+ Kg3 f2 b7 a2 c7 d2 b5 f4+ Kh2 g3+ Kg2 Na6 Kf3 g2 b8R Be7 b6 Nc5 b7 Ra4 Qc2 d1Q Qd2+ Nd3 Rh5 Nf6 Rg5 Qc2 Qe1 Ne4 Bd2 Nc1 Ba5 Re8 h8B+ Bf6 h7 Re5 Rg7 Bh4 Nd2 Bd7 Rb1 a1Q c8N Qaa2 Ne7 Be8 Kg4 f3 Rb5 Bh5+ Kf4 Qc6 Ng8 Qg6 Rb6 Qc7 Rf8 Qb8 Rf5 Bg4 Rg5 Bh5 Rb4+ Kc3 e3 d4 Bb5 f1R Be8 Kc2 Rb6 Rf2 Nf1 Re2 Nh6 f2 Ng4 Rd2 Ngh2 Bd1 Rd7 Rd3 Bf6 Rb3 h8B Rb2 Nh3 g1B Rg7 Qd6 b8N Rbb4 Nc6 Qb8 Nd2 Rb1 Ne7 f1Q+ Ndf3 Rb3 Ng8 Qe2 Nf1 Bgf2 N3h2 Rbb5 Ng1 Rb2 Re6 Rb7 Rb6
1R4N1/k1R1qR2/B2bbb1B/B1P1n3/N1rr1p1q/N1Q3r1/3BKnbq/3N4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 g5 b4 d5 c4 Kd7 e4 Kc7 h6 Kb7 c5 f5 b6 a5 h7 g4 b5 a4 e5 g3 h5 f3 e6 f4 h6 d3 e7 f2+ Kd2 a3 e8N g2 Nh3 g1Q Qb3 d4 Nf6 a2 Qc3 Be6 Na3 Qe7 Be2 f1Q Nf2 Ra4 Nd1 Qff2 Rh2 Ka8 b7+ Ka7 Rb1 Nd7 b8R a1B b6+ Ka6 b7 Ne5 Rb6+ Ka7 Rc6 Qh4 Rc7 Rc4 Rg2 Qgh2 Rg7 Bb2 Rf7 Ba1 Nd7 Nf6 Nb6 Bb2 Na4 Rg8 h8N Nfg4 h7 Nf2 Ng6 Rg7 Ke1 d2+ Kf1 d3 h8B Rg8 Bg7 Ba1 Bh6 Rg7 Ne3 d1B Bd2 Bb3 Ke1 Bh3 Nd1 Bg2 Nh8 Rg3 Ng6 Qe8 Bf1 Bd6 Ne7 Qf8 Ng8 Qfe7 Bc1 d2+ Ke2 Ba2 Ne3 d1R Bd2 Rb1 Nd1 Rd4 Rbf8 Rbb4 b8B+ Ka8 Rfc8 Be6 Re8 Rbc4 Ba7+ Bc8 Bb6 Kb8 Ba5 Ka8 Rc6 Ka7 Rd8 Bd7 Rb8 Be6 Rc7+ Bb7 Rcc8 Rdd3 Ne3 Re4 Qc1 Nd7 Ke1 Bf6 Qc3 Ne5 Rc7 Rb4 Be2 Rdd4 Ba6 Rbc4 Kf1 Qh5 Nd1 Q5h4 Rcc8 Bbd5 Ke2 Bg2 Rc7+
1kbnR3/3nK1Rq/1b2BB2/2p1R2R/rq1B2r1/1PqN1n2/N1q1NQ2/2Nb4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 f5 e4 h5 d4 a5 g4 f3 b3 h3 b6+ Kb7 d6 a4 d7 f4 Ke6 f2 e5 h2 d5 h4 d6 f3 g5 h3 g6 a3 g7 a2 Qe2 Rh5 Bb2 Ra5 Bd4 Nc6 Nc3 Rh4 Re1 a1Q Na2 Nf6 g8R Kb8 b7 Qc3 Rg7 Qb6 Nc1 Qbb4 Kf7 Ra6 d8N Rg4 e6 Be7 d7 Ra4 Bg2 f1N Qf2 Qc2 Re5 Nd2 Nge2 Bd6 e7 Bc7 e8R Bb6 Ne6 Nd8+ Ke7 Qcc3 Qh4 f2 N6f4 f1B Bd5 Nf3 Nfd3 Bg2 Qf2 Bf1 Rg1 h1Q Be6 h2 Rg3 Bg2 Rh3 Qd1 Rh6 h1Q Rhh5 Kc7 b8N Qdc2 Nc6 Qh4 Rhf5 Qh7 Rh5 Bh1 Na7 Kb8 Nb5 Nb7 d8B Nd7 Kf7 Bg2 Bf6 Nd8+ Ke7 Bf1 Na2 Bh3 Nec1 Bg2 Nc7 Bf1 Nd5 Be2 N5f4 Bd1 Nfe2
1Nr2q2/bnRB1r2/2K1nPkq/RBp5/2B5/B1rNN3/1n3bnR/1Q1b1R2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 Ke3 e5 g4 h5 d4 a5 f4 a4 b4 c3 f5 c2 b6 a3 d5 h4 f6 a2 d6 h3 b5 h2 d7 Rh3+ Nf3 Nh6 b7 Na6 b8N Nc5 b6 Kg6 b7 Ne6 Nc3 Nf7 Bb5 Nd6 Ba3 c1N Rf1 h1Q Nd5 Nd3 Qb1 Qe8 d8R Nb2 Rd7 Be7 Bc4 Qf8 Bb5 c5 Rc7 Bd8 Bd7 Rh7 Ne1 Rf7 Nd3 Qhh6 Ke2 e3 Kf3 e2 Ne3 e1B Bb5 Nf5 Ke4 Bf2 Kd5 e4 Kc6 Nd6 Na6 Qe7 b8R Qef8 Rb6 Nb7 Nb8 Ra4 Ra6 Rc4 Ra5 Rc3 Rh1 Rc2 Rh2 Rc3 Re7 Bb6 Rd7 Ba7 Rc7 Kh7 g6+ Kg8 g7 Kh7 g8B+ Kg6 Nf5 e3 g5 e2 Ne3 e1N Nd1 Kf5 g6 Ng2 g7 Kg6 Ne3 Qh8 Qh1 Qh6 Rf1 a1R Qg1 Nf4 Qh1 Bg4 Qg1 Bd1 Bh7+ Kg5 g8B Ne6 Bf5 Ra2 Bb4 Ra4 Ba3 Rd4 Bh3 Kg6 Qh1 Rd8 Qg1 Ng5 Bd7 Rc8 Qh1 Rg7 Bd5 Ne6 Bdc4 Rf7 Qg1 Bh4 Qf2 Bg3 Qc2 Bf2 Qb1
B1BK1Q1N/B3r1nR/R2n1pqR/3qPBbk/N1R2qb1/1r6/5n2/1q2rN2 b - - 0 1 illegal: No possible last move
2k5/2b2R2/1rPB2qN/r2rN3/pnnB3r/nRb1Nb1N/q1Q1RBB1/5K2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 Kd7 f4 a5 b4 e5 f6 h5 g5 e4 f5 a4 f7 e3 g6 h3 g7 h2 c5 h4 f6 e2 b6 h3 b5 d3 b7 d4 b6 d2+ Kf2 e1B+ Ke2 d3+ Ke3 Nc6 b8B Na5 b7 Rh6 Be5 Nc4+ Kf3 Bd6 f8R Ra5 b8B Qe8 f7 Bc7 Bg2 Rb6 Bd4 Ne7 g8N Na3 Nh6 Nc6 Ra2 Nb4 Nc3 Bb7+ Nd5 Kc8 Qc2 d1N Bce3 d2 Ke2 Nb2 Kf1 d1R Bf2 Nbc4 Ne3 Bf3 c6 Rd3 Rb2 Bc3 Rb3 Rd2 Rg8 Rd3 f8N Qg6 Rg7 Rd2 Nd7 Rd3 Ne2 Rd2 Rg1 h1Q Ne5 Qh2 Nf4 Rd3 Rf7 Rd2 Bc5 Rd5 Rh1 Qhg3 Bd4 h2 Rg1 h1R Nh3 Rh2 Rh1 Qe6 Rg1 Qgg6 Rh1 Bd8 Bd6 Bc7 Nf4 Rh4 Rh2 Qef5 Nh3 Qe4 Qc1 Qc2 Qd2 Qb2 Qc2 Qa2 Bh1 Nb5 Bg1 Kd8 Re2 Nba3 Bg2 Kc8 Bf2
nq1q3B/2b1rBq1/b1pk2N1/2Rn1K2/Rr6/BN3R1N/1RP3B1/rb1Q2q1 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Ke7 Ke3 h5 Kf4 d5 b4 a5 g4 a4 b6 e3 g5 c6 g6 d4 f3 a3 b7 e2 b5 e1R b6 a2 e6 h3 g7 h4 Bc4 d3 Kg4 h2 f4 h3 f5 d2 f6+ Kd6 f7 Nf6+ Kf5 Na6 g8B Nd5 b8R Rh4 b7 Nac7 Bf1 Rb4 Bg2 Bh6 f8N Bf4 Bb2 Ra6 Ba3 Na8 Ng6 Bg3 Qe2 d1Q Nd2 Qb1 Bf7 Qb3 Qd3 Re4 Rf1 a1Q Rf3 Qg7 Qf1 Qb1 Qd1 Bf4 Nb3 Re1 Bb2 Ra1 Ba3 Qbb2 Ne2 Be5 Nef4 Qb1 Rhf1 h1Q R1f2 h2 Nh3 Qf1 Re2 h1B Re4 Bf4 Rc4 Qg1 Rc5 Nc7 Ra8 Re3 b8B Ba6 e7 Re2 e8R Re7 Ba7 Be5 Rb8 Na8 Rbb5 Rc4 Nc1 Qh6 Rh8 Qh7 Rfb3 Kd7 Bf3 Bc7 Rb8 Rd4 Ra5 Nb4 B3d5 Rc4 Bd4 Kd6 Rc5 Qhg8 Rh6 Qb2 Bh8 Qgg7 Rh4 Rd4 Bc4 Bd5 Rf3 Rde4 Bd3 Ba2 Bf1+ Nd5 Bg2 Bb1 Rb7 Qb6 Rhf4 Qa7 Rb2 Qab8 Nb3 Rc4 Re3 Rce4 Rff3 Rg4 Re4 Rh4 Ra4 Rg4 Nc1 Rb4 Nb3
rq2q2B/nN4bR/2pN1b1R/N1KR1nbR/Bn3Q2/1P4k1/b3q1r1/2B4B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 e4 g5 h4 a5 b6 f5 b7 a4 h5 f3 Ke3 a3 h6 a2 h7 f2 Qe1 f4+ Kd3 f3 Kc4 g3 Nc3 g4 Qe3 g2 Nge2 g1B Rh5 g3 Bg2 f1Q Bh1 Na6 b8R g2 Rb7 f2 b3 Ne7 Rb1 Rg8 h8B a1B Qg5 Nc6 Qf4+ Ne5+ Kb5 Bf5 Rb2 Bg7 Rh6+ Kd7 d6 Nc6 d5 Nab4 e5 Qb8 Kc5 Bb1 Nd4 Qe2 Ne4 Na7 Nc6 Ba2 Na5 Bf6 Rd2 f1N+ Rd4 Ng3 e6+ Kc8 e7 Kd7 Rb5 Nf5 Rh7 Be3 e8B+ Kd8 d7 g1Q Rb6 Rg2 Nd6 Qge1 Rh5 Ke7 d8R Bg7 Ba4 Kf6 Rd7 Bd2 Rd3 Qee8 Rdh3 Q1e2 Rb7 Kg6 Rb5 Bgf6 Rdh7 c6 R3h4 Bg5 Rh3 Bg7 Rh2 Bdc3 R2h4 Kf6 R5h6+ Ke7 R4h5 Bcf6 Qf2 Qe1 Ndc4 Bb2 d6+ Kf7 Qh4 Qbc8 Kb6 Q1e2 d7 Bbf6 Nd6+ Ke6 Rd5 Qcd8+ Kc5 Qb8 d8N+ Ke7 N8b7 Ke6 Rd2 Ke5 Qe1 Kf4 Rd5+ Kf3 Qf1+ Kg3 Qf4+
3nR1N1/1N1R2k1/rP1K1B1b/p1nB3b/Bqqr4/q1R3Nn/7r/1RN1Q1n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 f5 b4 Kf7 d4 h5 e4 c5 g4 h3 e5 h2 g5 c4 g6+ Kg7 d6 c3 e6 c2 d7 h4 d5 h3 b6 Nf6 b7 Nc6 b8R Ra6 e7 Rh5 e8B Qe7 d8R Ne4 b5 Rh4 b6 Qb4 d6 Nc5 Ba3 c1N d7 Ne2 Bg2 Bb7 Rdc8 Nd8+ Rc6 Bc8 Nd2 Rg4 Nf1 Rh4 Kf2 f3 Ke3 f2 Ng3 f1Q Rb1 Rd4 Qe1 Bb7 Rc7 Bf3 Ra8 Bh5 Bd5 Qg2 Rb3 Qf1 Rc3 Qg2 Bc4 Qc6 Bd5 Qca4 Rac8 Kf6 g7 f4+ Kf2 f3 Ke3 f2 g8N+ Kg7 Ra7 Nf4 N1e2 f1Q Nc1 Ne2 Rg1 h1N Rca8 Nf7 d8N h2 Rd7 Nf2 Nb7 h1R Rc8 Rh3 Rh1 Ng1 Rb8 Nce4 Kf4 Rh2 Kf5 Nfh3+ Ke6 Qf3 Rbc8 Qc4 Be7 Nd8+ Ke5 Nc5 Kd6 Qe4 Nf6 Qg2 Qe6 Qa3 Nb3 Nc6 Ng8 Kh7 Rdd8 Nf3 Rb1 Bh6 Nc1 Qgb2 Qe1 Nfg1 Rb8 Qbb4 Bd7 Na7 Ba4 Kg7 Rd7 Nc6 Re8 Nd8 Bf6+
1R2bb2/rbkNrn2/1PNN2qp/8/1nQ5/2B3R1/rRqqBNb1/2B3KR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 c5 b4 a5 d4 f5 e4 a4 e5 h3 e6+ Kc7 g5 f3 g6 a3 g7 f4 e7 a2 e8R c4 Nd2 c3 Qc2 h2 Ne4 Ra4 Rb1 a1R Nh3 R1a2 Be2 Nh6 g8R Bd7 Rg3 Nc6 Rb2 Nf7 Nd6 h6 Qd3 c2 Qc4 Qg5 Rb8 Qg6 Kf1 Be8 Nf2 Ra7 b6+ Kd7 b5 Nb4 b7 Rh7 Nc8 Kd8 d6 Kd7 d5 Kd8 Nh3 f2 d7 Rg7 Kg2 f1B+ Kf2 f3 Nd6+ Ke7 d8B+ Kd7 Bdg5 Bg2 Bf6 Rh7 Bc3 Rg7 Rf1 h1B Kg1 Rh7 Nf2 Rg7 B1d2 c1Q Rd1 Qcc2 Bc1 R2a4 Nc8 Kd8 d6 Ra2 d7 Qd2 Qh4+ Kc7 d8N Rh7 Nc6 Qdc2 Qc4 Qd2 Ng4 Qdc2 Nd6 f2+ Kh2 f1Q Nf2 Bd5 Re1 Qh3+ Kg1 Qd7 Kh2 Bhg2 Rh1 Bdf3 Kg1 Qd8 Ra8 Qdg5 b8N Qgd2 Nd7 Be4 Rb8 Rg7 Qd4 Bef3 Na5 Bb7 Nc6 Ne5 Qd5 Re7 Qc4 Nf7 b6+
5N1Q/1B2k1P1/BR1rn2K/1b3p1b/1Nrn1R2/q1n2Bb1/1q1B1N1N/b2R2q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 f5 c4 h5 g4 a5 e4 d3 b4 d2 g6 a4 g7 a3 e5 d4 b6 d3 b5 a2 e6 h4 e7 h3 b7 h2 g5 Nc6 b8N Qa5 c5 Nf6 g8N Qc7 g6 Bb7 b6 Nh5 g7 Qd8 Nf6+ Kf7 e8B+ Ke6 Na6 Qb8 Nh3 Rh6 Nb4 Ra4 Nf2 Ke7 Nh7 Ba6 b7 Bb5 Qb3 d1N Nd2 Qd6 b8R Nc3 Rb6 Rg6 Rb1 a1B Qg8 Rh6 Rg1 h1Q+ Rg2 Qh4 Qh8 Qh2 Rg4 Qg1 Bg6 Qb8 Bf7 Rd6 Bd5 Qb7 Bg2 Qa8 Nf1 d2 Bc4 d1B+ Be2 Qa7 Nh2 Qa6 Bd2 Qb7 Na6 Rc4 Nb4 Qa6 Bh1 Qa3 Rc1 Na5 c6 Nb3 c7 Qb2 Nh3 Qc5 c8B Nd4+ Kf2 f3 Ke3 f2 Ba6 f1Q Rf4 Qe1 Nf2 Qg1 Bef3 Be2 Bfb7 Bg4 Rd1 Bf3 Rh4 Nf4 Rg4 Nfe6 Rf4 Bh5 Bhd5 Kf7 Bf3 Be7 Nf8 Bh4 Re4 Ke7 Rg4 Nc7 Kf4 Bg3+ Kg5 Nce6+ Kh6 Kf6 Rf4 Ke7 Nbd3 Qca3 Nb4
1B1Rb3/Nnr1prq1/K2nN1B1/N4BQ1/rr6/1qPk4/bR3Rqb/B4N2 b - - 0 1 illegal: No possible last move, all moves rejected
n3r1RN/2Np3P/8/2r2Qbq/1B1B2k1/1bN2qr1/1R1nRnB1/2B1qRKn b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 f4 Kf7 Kf2 Kf6 b4 a5 c4 e5 h4 g5 c5 a4 c6 e4 b6 e3+ Kg2 g3 b5 d3 b7 g4 h5 e2 h6 e1Q h7 d2 c7 a3 b6 a2 Nf3 Nh6 Kg1 g2 Rh4 Qde8 Rh1 Na6 b8B Qh5 b7 Be7 Qc2 d1Q Qd3 Re8 Ng5 Qf3 Nc3 Ra7 Rb1 a1N Nf7 Nb3 Rh2 Nd2 Rb2 Ra8 Ba7 Bd8 b8B Bb7 c8R Nc7 Nh8 Bd5 Be3 Bb3 Bd4+ Re5 Qb5 Ra5 Qd5 Na8 Bd6 Rb5 Bb4 Rc5 Be3 Re8 Bd4+ Ke7 Qe4+ Kd6 f6 Nf5 f7 Ng3 f8N Nh1 f5 Bg5 Ne6 Ke7 Be3 Kf6 Qb1 Ke5 Nc7 Kf6 Qd3 Ke5 Bd4+ Kf4 f6 Kg3 f7 Kf4 Rh4 Kg3 Qb1 Kf4 Kh2 g1N Bg2 Nh3 Qg6 N3f2 f8R+ Bf6 Rg8 Bd8 Qd3 Bg5 Qf1 Kf5 Kg1 g3 Rh2 Kf4 Rb8 Kg4 Rb6 Rb5 Re6 Rc5 Re2 Qff7 Be4 g2 Rh3 Qf4 Rf3 Qg3 Rf5 Qf3 Bd3 Qd5 Re3 Nh3+ Kh2 g1R Be4 Nc4 Ree2 Rg3 Bg2 Nd2 Rf7 Qc6 Qf6 Qe4 Qg6 Qd5 Rf1 N3f2+ Kg1 Qf3 Qf5+
q1B2b2/p2bn2K/N1kq3B/2P1R1rN/1rB4n/2RNqn1Q/R2q3r/1N4R1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kd3 d5 c4 Kd7 f4 h5 b4 h3 g4 h2 f6 h4 f5 h3 g5 Kc7 b6+ Kc6 f7 Be6 g6 Nf6 b5+ Kb7 g7 Qd6 g8B Qe7 c5 Rh5 Qg4 Nfd7 f6 Rg5 Ra2 Nc6 Nf3 Rb8 Rg1 h1Q Ne1 h2 Bh3 Qe8 Qg3 Ne7 Bg4 Qg2 Qh3 h1R Be3 Rh2 Bd2 Kc8 b7+ Kc7 b6+ Kc6 Bc1 Bh6 Bd2 Nf8 Be3 Nfg6 f8R Qh1 f7 Bd7 Bf5 Nh4 Bc1 Qd8 Re8 Qf3+ Be3 Bg7 f8R Qf4 Rf7 Bf8 Be6 Qg3 Rff2 Qc8 Rfc2 Qd8 Rc3 Qf2 Bd2 e4+ Kc2 e3 Kd3 e2 Bg4 Nef5 Re5 Ne7 Bf7 Be8 Bc8 Bd7 Ng2 Qe8 Nf4 Qg2 Nh5 Qf2 Bf4 Qg2 Kd2 d3 Ke3 d2 Kd3 d4 Bc4 Qf2 Ke4 d1Q Be3 d3 Bf4 Rg3 Bh6 Qfe1 Kf4 d2 Ke4 Qb3 Kf4 d1Q Ke4 Qd6 Kf4 Re3 Kg5 Qd3 Kf6 Qed2 Kg5 e1N Kf6 Qd8 Kf7 Nef5 Kg8 Qd6 Kh7 Nef3 Rcc2 Ree2 Rcc1 Qbe3 Rc3 Q8c7 Be6 Ra8 Bf7 Reg2 b8N+ Kb5 b7 Ne7 Be6 Qcc6 Na6 Rg5 Nb4 Qcd5 b8N Q5c6 N8a6 Rb8 Bb3 Qa8 Nd3 Kc6 Bf7 Rb4 Bc4
R2q1BQ1/Nn5r/N6R/1k3Pr1/n2BrrBb/Kb1r2N1/p2n2NR/6Br b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 Kd2 c5 Kc2 h5 Kb3 e5 f4 e3 f5 a4+ Ka3 e4 b4 h3 g5 h2 g6 e2 g7 e1N d6 e3 b6 Kc6 b7 h4 d7 e2 d5+ Kb5 d6 c4 Bb2 c3 Nd2 h3 Qb3 c2 Bd4 c1R Ndf3 Ne7 g8R Na6 b8N Rh4 Ra2 Nc5 Na6 Rf4 Nh4 Rc3 Ng2 Nd5 Rh8 Be7 Rh6 Rd3 Ra1 Qf8 d8B Nc3 d7 Nb7 Qg8 Nf3 B8b6 e1R d8B Bh4 Ne2 Be6 Be7 Qd8 Bf8 Nd2 Ng3 Ree4 Be2 Bb3 Bg4 Rc8 Bbc5 Rc7 Ra2 Rg7 Rha1 h1R Bg1 h2 Bcd4 Rg5 Rb2 Bf7 Raa2 Kc4 b5 Be6 b6 Bd5 Nb4 Kb5 Nc6+ Bb3 Na7+ Ka6 Kb4 a3 Rc2 Na4 Rc8 Rf2 Ra8 Rff4 Rc2 a2 Ka3 Nbc5 b7+ Ka5 b8N Nb7 Nac6+ Kb5 Na6 Rh5 Bgf2 Rg1 Bfe3 h1R Rb2 Rg5 Bf2 Rge1 Bg1 Re7 Rc2 R1e4 Na7+ Ka5 Rc4 Rh7 Rc2 Nf3 Re2 Nd2 Ne3 Nbc5 Rh2 Nb7 Nc6+ Kb5 Ng2 Qd6+ Nab4 Qd7 Na6 Qd8 Na7+
1B2r3/nB5k/bBR3nP/4Bq2/1bb1N1Q1/R1r1Rb1n/1b1p1N2/1K2bR1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 b4 Kf7 e4 g5 h4 Kg7 c4 d5 Kc2 a5 h6+ Kh7 b6 g4 c5 d3+ Kb2 f3 b7 d4 h5 a4 c6 f2 e5 a3+ Ka2 f4 c7 d2 b5 g3 b6 g2 e6 f3 e7 d3 e8R Qg5 Ne2 g1B Bg2 f1B Nbc3 f2 Ne4 Ne7 N2g3 Nbc6 b8B Be2 b7 f1B Nf2 Na7 Kb1 Ng6 Re3 Qf5 Bf3 Be6 c8R Bc4 Be5 Bb4 b8B Re8 Bb7 Bf3 Rc6 Bh2 Qa4 d1N Bcb2 B1e2 Rf1 Bg1 Ngh1 d2+ Qc2 Ba6 Bbd4 Bec4 Bb6 Bh2 Qe4 Bg3 Nh3 Be1 N3f2 Nb2 Ra2 Nd3 Qg4 Ndf4+ Rd3 Qf6 Re3 Nh3 Ra1 Kh8 h7 a2+ Kb2 Kg7 h8N Kh7 h6 Qf5 Nf7 Rc8 Nd6 Re8 B8c7 Rac8 Bb8 Rc7 Nde4 Rcc8 Rd1 a1B+ Kb1 Bb2 Rc1 Rcd8 Rcc3 Rd3 Rb3 Rc3 Ra3
1bbn4/1p3B1k/rqr2BN1/BQ2nbK1/3r1B2/R1RR1R2/b1b1b1P1/5NN1 b - - 0 1 illegal: No proof kernel
NR4R1/2bR1r1B/K2Bq2k/2Pb3b/2n5/1q3n1R/3pBbrb/QN2b1NB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 d5 Kd3 g5 c4 a5 b4 f5 h4 Kf7 e4 Kg7 e6 f4 h5 g3 e5 f3 c5 g2 e7 a4 e8B g4 b6 a3 e6 g3 b7 f2 b5 a2 b6 Nd7 b8N Bd6 e7 Bb7 Qe1 Ne5+ Kc2 d3+ Kc3 d2 Kb4 d1B Kb5 d4 Qa5 d3 Nh3 g1B Ba3 g2 Qa7 Qd7+ Ka5 Bc7 Be2 f1Q Na6 Nf6 Bb2 Nd5 Bg6 Rhg8 e8B Bh2 Ng1 Qff7 Bh7 Qde6 Bc6 Ne3 Bc1 Raf8 h6+ Kh8 Kb5 N3c4 Bf4 Nf3 Bd6 d2 Bce4 Bd5 b7 Bg3 b8R Be1 Rh3 Rg6 Bc2 Qg8 Be4 Rf7 Be7 Bh2 Nc7 Rg5 Na8 Bc7 Na3 Rgg7 Rb1 a1B Bd6 Bd4 Ka6 Bdf2 R1b7 Rg6 Nb1 Rg3 Bhf5 Rg4 h7 Kg7 h8R Rg5 Bh7 Rg4 Rg3 Kh6 Kb5 Rg5 Qa1 Rgg7 Ka6 Rg5 Nh3 g1B Ra7 Bh2 Ng1 Qg7 Rhf8 Qc3 Rg8 Qb3 Rab7 Nfe5 Bh1 Nf3 Rg4 Rg6 Rd4 Rg2 Rd3 Bc2 Rc3 Bg6 Re3 Bh5 Rd3 Ba5 Rd7 Bc7 Rc3 Nd4 Rcg3 Nf3 Rh3
1QK1n1r1/3N4/1R1Pbq1r/3Nq1B1/BpR3bb/3B3n/B1N2k1R/3bN1bb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 b5 g4 h5 a4 b3 f4 b4 d4+ Kb6 g5 c5 d6 c4 d7 h3 Ke6 c3 f6 h2 g6 h4 f5 h3 g7 c2 d5 Kc5 f7 b2 a5 Rh6+ f6 Qc7 a6 Nc6 a7 Ne5 Bd3 Kd4 Bg5 c1Q Nc3 b1B Ra6 Bc2 Rb6 Qf4 Nf3+ Ke3 Nh4 Ng4 Ng2+ Kf2 Qc1 Qf3 Qf4 Bd1 Qd6 Rb8 a8B Qf4 Bc6 Qd4 Rg1 h1B Ba4 h2 Re1 Ra8 Re4 Qd8 Qb8 Qe8 Ne3 Bhf3 Ng2 h1B Rf4 Qd8 Re4 Qc5 Rc4 Bfe2 Nb1 Qd4 Na3 Qc3 Nc2 Bf3 Kf5 e5 Ke6 Bc5 f8N e4 d6 e3 Ng6 e2 f7 e1B f8N N8f6 g8B Bfe2 Ne7 Ne8+ Kf5 Be3 Nd5 Qe7 Be6 Qcg7 d8R Qef6+ Ke4 Bd7 Bg8 Be6 Nd7 Bf4 Bf7 Bh2 Bg8 Bg1 Bf7 Nc7 Rh8 Ne8 Rh7 Nh2 Bg8 B2g4 Rh8 Nf3 Bf7 Rg6 Rh2 Rh6 Bg8 Ne5 Kd4 Ng6+ Kc5 Nf4 Kc6 Nh3 Kb7 Qe5 Kc8 Qgf6 Rd4 Kf3 Bf7 Bh4 Rc4 Kf2 Rd4 Ra7 Nc7 Bef5 Ba2 Qe2 Nd5 Be6 Rc4 Qee5 Qc7 Ra8+ Kb7 Ng7 Qd8 Rc8 Qc7 Re8 Qb8 Rg8 Kc7 Ne8+ Kb7 Bgf3 Kc8 Bfg4 Nge1+
r1R2R1B/NR4K1/2p1r2r/bBnNr2N/r1q2B2/NP3bn1/5n2/k1BQn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 g4 h5 d6 a5 g5 h3 g6 h2 d7 f3 g7 a4 d5 c6 d6 f4 b6 f2 b7 h4 Nc3 a3 Qd3+ Kb3 e4 f3 Qd4 a2 Rb1 a1N Nge2 h3 Ng3 Qh4 d8R Nf6 g8N Nh5 d7 Rh6 Bb5 f1R Nf6 f2 Qd1+ Nc2 Nfd5 Re1 Rf1 Na6 b8B h1R Re8 h2 d8B Bg7+ Bf6 Bg4 Rc8 Bf3 Ke6 Bf8 Kf7 Nc5 e5 Qc4 e6 Re5 e7 Ra4 Bg7 Rhe6 e8N Be7 Bh8 Bd8 Nd6 Ba5 Nce4 Ka2 Nd2 Ne1 Kf8 Nf4 Nh5 Ne2 Kg7 Ng3 Bc7 Rg1 Bb8 h1N Bc7 Rg2 Bb8 Rh2 Bc7 Qd3 N2c4 Rh3 Na3 Qc4 Ba6 Rh2 Ndb5 Rh4 Na7 Rh2 Rg1 f1R Bb5 Nf2 b3 Rh3 Rb2+ Ka1 Re2 Re3 Bf4 R3e5 Rh1 Rg1 Rd2 Rg2 Rf1 Rh1 Nb6 Rgh2 Rd7 Rg1 Rb7 Rgh1 Nf6 Rh6 Nbd5 R1h5 Rh1 Rhf5 Nh5 Rf8 Rh4 Rd8 Rg4 Rde8 Rg6 Rd8 Rf6 Rde8 Rf8 Rd8 Rcc7 Ra8 Rcc8
B7/b2K1RN1/1q1n2NR/1kr5/b5Pr/N3B2Q/1NpqrqBB/2Rr1nq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 h5 d4 a5 g4 c5 b4 a4 e5 c4 b6 a3 b7 h3 d6 Kc6 d7 h2 e6 h4 e7 h3 e8B c3 Qd3 a2 Bh5 c2 Ne2 Ne7 Qa3 Na6 b8B Nc5 Bf7 Ne4 Nec3 Ra5 Na4 Nd5 Nb2 Ne3 b5+ Kb6 d5 Bc5 d6 Re8 Bb3 Qf6 d8R Bd7 Bd5 Bd4 Rg1 h1R Ba8 h2 Rg2 Rg1 Rf2 h1R Bg2 Rh4 Qb3 Re5 Rh8 Rd1 Rh6 Be8 Nd2 Bc6 d7 Re6 Rb1 a1Q d8N Kc5 b6 Ba4 b7 Qg5 Nbc4 Qb2 Na3 Re7 Be5 Nd6 Ne6+ Kc6 Ndc4 Ba7 Ra1 Rc5 Ng7 Qb1 Qd3 Qb6 Nb2 Re8 Bd2 Re7 Rc1 Re8 Nac4 Kb5 b8N Re6 Rf1 Re7 Nc6 Re6 Kf2 f3 Kg3 f2 Ne7 f4+ Kf3 Qg6 Qa3 Qd3 Ng6 Re7 Bdc3 Qd2 Bcd4 Ne8 Ke4 f3 Kf4 Nd6 Kg5 Re8 Kf6 Re7 Bh2 Re4 Re1 f1Q Re2 Ree5 Rf2 Qg1 Rf1 f2 Qc3 Nef5 Qh3 Re2 Be3 Ng3 Ke7 Nge4 Re1 f1Q Kd7 Qf4 Rf1 Ng3 Rf3 Nf1 Rf2 Qg3 Rf7 Q3f2 Na3+
5B2/1B1R1n1K/3q2rb/bB3N1n/rpnk1PqR/b2NN2Q/3nbN2/R5R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 h5 Kg6 b5 f4 e5 a4 e4 g4 e3 f6 h3 g5 h2 a5 h4 f7 b3 a6 e2 d4+ Kc4 d6 c5 d7 h3 d5 b2 d6 Nh6 a7 Rg8+ Kh7 Ba6 g6 Nc6 g7 Na5 Nd2+ Kd4 Qb3 e1B Nc4 b1N Ba3 Nd2 Ne3 c4 Be2 Qc7 d8R c3 d7 c2 Rc8 c1B d8R+ Qd6 Rd7 Bb2 Rcc1 Nac4 Bb4 Ba3 Bd3 Be7 f8N Nf7 Ng6 Bg5 Ne5 Bh6 Rcb1 Bb7 Bf1 Bf3 Nd3 Be2 Rc1 Rgc8 g8N Rc6 Ne7 Ra6 Rc2 Ra4 Rb2 Rg8 a8B Rg6 Bb7 Bh4 N7d5 Bd8 Rbb1 Ba5 Rd1 Qb8 Bf8 b4 Nf2 Qd6 Nf3+ Kc5 Ne5 Kd4 Rg1 h1N Ned3 h2 Ne7 Ng3 Rdb1 Nh5 Rg4 h1Q Rh4 Bg4 Be2 Qh3 Rg1 Nce5 Bf1 Be2 Qe6 Qg3 Qh3 Nec4 N7f5+ Kc3 Bfg2 Qg5 Bgc6 Qg4 Ng3 Kd4 Bb5 Rf6 Nc5 Re6 Ncd3 Rg6 Ngf5+
n6R/1R6/1kN3q1/R4brp/KN3BNr/P1B1bBbr/q1r3nN/2bR1Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 d4 c5 Kd2 Kc7 Kc2 e5 Kb3 b5 g4 h3 f6 h2 g5 e4 a3 e3 f5 e2 d6+ Kb6 d7 e1B f7 Qf6 d8R Bg3 d5 Qg6 f6 Bh6 f8R Nd7 d6 Ra5 f7 Ngf6 Bg2 Nd5 Bf3 Ne3 Nc3 Ng2 Rb1 c4+ Ka2 Nc5 d7 Na6 Bf4 Nc7 Qf1 b3+ Kb2 b4 Na2 Na8 Rfe8 Nc7 f8B Na8 Bg7 Rd5 Re5 c3+ Ka1 c2 Kb2 Rd2 Ra5 Rd5 Bc3 c1B+ Ka1 Be3 Kb2 Rf5 Rg8 Rc5 d8N Bf5 Nc6 Rc4 Rc8 Rg8 Bd6 Rh4 Bf4 Rg7 Rh8 Rh3 Ne2 Rh4 Rg1 h1R Ned4 R1h3 Rh1 Qe6 g6 Rg8 g7 Qg6 Be2 Bg5 Nf3 h5 Nh2 Rc8 g8N Bh6 Bb8 Bc1+ Ka1 Bhe3 Nh6 Rg8 Bf4 Rg7 Rb2 Rg8 Rc2 b2+ Kb1 Rc8 N6g4 Rg8 Bf3 Rg7 Be4 Rc7 Re2 Rg7 Kc2 b1R Rd2 Ra1 Rd7 b3+ Kd1 b2 Kc2 Rg8 Kb3 b1Q+ Ka4 Rc8 Nab4 Qa2 Bf3 Rb1 Na6 Rb5 Nab4 Rc5 Bce5 Rc2 Bc3 Rd8 Rg7 Rd5 Rga7 Rb5 Rb7+ Kc5 Na7 Bd3 Qf2 Be4 Rd1 Bd3 Rc7+ Kb6 Nac6 Rg5 Qf1 Bf5 Rb7+
1N1Rk1K1/2QR4/1bR2Bp1/rq3r1q/1RBn4/3BN1q1/P2Bbbq1/Nn1b4 b - - 0 1 illegal: No possible last move, all moves rejected
rB1RnBR1/1k3b2/2N1np1K/q4r1N/1q1Qb3/Rq1NP2q/2B4B/b3N1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 d4 c5 g4 Kc7 b4 a5 g5 c4 e3 c3 b6+ Kb7 b5 h3 d6 a4 d5 a3 d7 c2 d6 a2 g6 h4 Kg4 h2 g7 f3 Bd3 f2 Ba3 c1Q Bc2 f1Q Nh3 Nf6+ Kg5 Qd3 g8N Ne8+ Nf6 Qb2 Nf4 h3 Rg1 h1Q Nd2 h2 Nf3 Qb4 Ne1 Qdb3 Qd4 Na6 Nfd3 Nc5 Rg4 Qc7 d8R Be6 d7 Bd6 Nh5 Rf8 Kh6 Qf3 Rg8 h1B Kg5 Bh2 Kh6 Qa5 Bb4 Qh3 Ba3 Bg1 Bb4 Qc8 Ba3 Kb8 b7 Be4 Bb4 Ka7 b8B+ Kb7 Bh2 Qb8 b6 B6d5 Ba3 Ne6 Bc5 Qc7 Bb4 Qcc4 Bc5 Qcb4 Bcd6 Kc6 b7 Bc4 b8B Kb7 Rb1 a1B Rb2 f6 Ra2 Rf7 Be7 Rg7 Bf8 Rg5 Ra3 Rf5 Rc8 Ka6 d8N Bcd5 Nc6 Kb7 Bbg3 Nf4 Rd8 Bf7 Bc5 Ne6 Bb8 Qb2 Bcd6 Q2b3 Bf8
1r2qNR1/rR1b3n/2pk2rq/Q1N3b1/1brbB1N1/2P1b3/1RNB2B1/1K5R b - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h3 f5 Bc4 Nd7 Be2 Ne5 Bd3 fxg4 Bf1 g3 h4 g4 Qe2 Nf7 Qd1 Ng5 hxg5 Be6 Rh3 Bd7 Rh1 Bc8 b4 Kd7 d4 h5 Kd2 e5 f4 a5 b6 c6 g6 g2 g7 g3 b5 a4 d5 h4 d6 a3 f5 h3 f6 a2 b7 h2 b8R Ra7 b6 Qe8 f7 Nf6 g8B Be7 b7 Nh7 Nf3 g1R Na3 g2 Rb1 a1B Qe1 Bd4 Rb2 e3+ Kd3 e2 Bd2 Ke6 d7 Kd6 d8R+ Bd7 f8N Bg5 Bd5 Rg8 Qa1 e1R Be4 Rc1 Rdc8 Bde3 Rc7 Rg6 Ra8 Bd4 b8N Bde3 Na6 Rg8 Bd5 e4+ Kc3 Rh8 Rcb7 Bd4+ Kb3 e3 Ka2 e2 Ne5 e1B Nc5 Rg8 Be4 Rg6 Be3 Bb4 Bd2 Rb1 Ng4 Bde3 Bb5 Rgc1 Bf1 g1B Bfg2 Bd4 Rd8 B1e3 Rc8 Rf1 c3 Rf4 Rg1 h1Q Ra8 Qh6 Rh1 Rbf1 Rc8 R1f3 Kb1 Rh3 Nc2 Rh4 Nce6 Rf5 Qa5 Rb5 Rbc7 Rb8 Rb7 Rh3 Nc5 Rf3 Na6 Rf5 Rd8 Rc5 Rc8 Rc4 Nc5 Qf7 Rd8 Qe8 Nfe6 Qf7 Rg8 Qe8 Nf8
1q1N1B2/p4Bq1/3BRNR1/Pb2Qn1R/2k1r1qr/R1N1q2n/1nrBr3/5K2 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Bg5 hxg5 Qb6 Bb2 Qc7 Bc1 Qd8 d4 Kf7 f4 Ke6 a4 Kd5 a5 e5 g6 h5 f5 b5 c6 b4 c7 e3 f6 e2 f7 e4 f8B b3 c3 g2 g7 g3 Ra4 b2 Bf4 h4 Bc1 h3 Qd3 h2 Qe3 Na6 Bd2 Qf6 Nf3 Ne7 g8N g1N Ra3 g2 Ne5 Nc5 Nf7 Bd7 c8R Qg7 Rc6 Na4 Rg6 Nf5 Qg3 Rc8 Nf6+ Kc6 d5+ Kb5 Bd6 Rhe8 Nd8 Rc4 Kf2 e1R Be2 Bc6 Bd1 Re6 Bb3 Rc1 Bf8 Rc2 Ba2 e3+ Ke1 Rg4 c4+ Ka6 c5 Kb5 Qd6 e2 Nc3+ Kb4 Kf2 b1Q Qg3 Re3 Qe5 Rge4 Bb3 Be8 Bc4 Qb3 Ke1 Nb2 c6+ Qe7 c7 Bd7 d6 Qg7 Bf7 Be8 Ne6 Kc4 d7 Qb8 d8B Bb5 Kf2 e1R Bde7 Rh3 Rg5 Rh7 Bb4 Rh3 Rh5 Rhh4 Bbc5 R1e3 c8R Re1 Rc6 Nh3+ Kf3 R1e2 Rg1 h1Q Rb6 Qh2 Nd8+ Kd3 Re6 Kc4 Rc1 g1Q Bcd6 Q1g5 Rg1 Q5g6 Rg3 Qg1 Rg2 Re1 Rg4 Qe3+ Kg2 Re2+ Kf1 Qgg5 Rh8 Qh5 Rg6 Qg4 Rh5
1q1QRB2/1nnk4/5npK/N2B1b2/3n1n2/2Rb2nB/NbNb2P1/N1R3Rr b - - 0 1 illegal: No possible last move, all moves rejected
n1nN4/3nqR2/1N3b2/b5pb/1qQ1BB1B/1pr1R3/NKR1q1P1/2B2Nrk b - - 0 1 legal: proof: e4 d5 h4 a5 c4 f5 cxd5 Qd6 b4 axb4 exf5 Qg3 Rh3 Qxh4 Rh1 Qh2 f4 Kf7 a4 Kf6 d4 h5 Kd2 b5 Kc2 e5 d6 g5 d5 c5 a5 e4 a6 h4 a7 b3+ Kc3 b4+ Kb2 e3 d7 h3 d8N c4 d6 e2 d7 e1B Nf7 Be7 d8B Nd7 Nf3 Nb6 Ra5 c3+ Ka1 c2 Rb5 b2+ Ka2 Ba6 Rg1 Rc8 a8N Rc3 Rc5 Be2 Nfd2 Bh5 Bc7 Qg3 Rh1 h2 Qe2 Qf3 Qc4 Qe2 Nd8 Rh7 Rg1 h1Q Re5 Qh4 Re3 Nc8 Nb6 Rh8 Na3 b1N Kb2 b3 Nb5 Na3 Bd6 Qd1 Bd3 Qe2 Nf1 Rh7 Na7 Nb5 Nac6 Nc7 Nb4 Na8 Be4 Rf7 Na2 Rf8 Nb7 Rd8 Bb4 Rd1 Nd8 Bd2 Nh2 Rf1 Rh1 Rg1 Nf1 Nh6 Rhh3 Ng4 Rhf3 Ne5 Rf2 Nd7 Bc5 Kg7 f6+ Kh6 f7 Bf6 f5 Qf4 f8R Qd6 Ka1 Qe7 Bd6 Be1 Bg3 Bd2 Bh4 Qb4 Bb2 Be1 Rf7 c1Q+ Bb1 Qcd1 Bc1 Qdd6 Be4 Qe7 Kb1 Bf3 Ka1 Kh5 Kb1 Kg4 Ka1 Qd3 Rc2 Qe2 Kb1 Kf4 Kb2 Bh5 Rh7 Bd4 f6 Bd2 f7 Bf6 f8B Be1 Rh3+ Bd2 Ng3 Ke3 Rf7 Kf2 Bg7 Rd1 Nf1+ Kg1 Re3 Kh1 Nh2 Rg1 Nf1 Be1 Bf8 Qe8 Bc5 Qe7 Bd6 Qc5 Nb7 Rd3+ Kb1 Ba5 Nd8 Qb4 Bf4 Rc3 Kb2
1KbN1Q2/r1NR4/BR1B3n/3P2N1/2k5/R1r1R1NB/1p1rpqn1/1qb3bn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 b5 g4 h5 a4 b3 f4 b4 d4+ Kb6 g5 c5 d6 c4 d7 h3 a5+ Kb5 a6 b2 f6 h2 g6 h4 a7 h3 g7 e6 f7 b3 d5 Qe7 d8N Na6 f5 Nb8 f6 Qc5 Ne2 c3 Ra3 c2 Nbc3+ Kc4 Bf4 b1Q Ne4 c1B Ng5 Nh6 g8B b2 Re3 Bg7 f8R Na6 Rf7 Nb4 Rd7 Nc2 Qe1 Rh7 Qf2 Ne1 Rg1 h1N Rgg3 Bf8 f7 h2 Rh3 Rb8 a8N Ng2 Nc7 Rb3 Ng3+ Rd3 Qf3 Qa7 Qf2 Bc5 f8R Bb6 Kd6 e5 Be2 e4 Rf6 Bd4 Be6 Rf7 Rf3 e3 Kc6 Bb6 Bd6 Bc5 Bf1 e2 Re3 Rd2 Bf5 Bb6 Bd3+ Kc3 Ba6+ Kd4 Bb7 Kc4 Rfe6 Rh7 Qf8 Bc5 Ra3 Bg1 Rg6 Qf2 Ba6+ Kd4 Kb6 Rf7 Ka7 Rf3 Bb7 Kc4+ Kb8 Rb3 Nf5 Rc3 Re3 Ng3 Rge6 h1R Rf6 Rh5 Rg6 Nh1 Ng3 Nh4 Bh3 Ng2 Be5 Rh4 Rb6 Rhd4 Bd6 R4d3 Ra2 Ra3 Ra1 Ra7 Ra3 Rc3 Ba6+
2BN1B2/bQ1NR3/4rp1p/bq2B1r1/R4rqR/k2n1nB1/3P1q1R/K2b1N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 Kd6 e4 a5 b6 c5 b7 c4 b5 Kc5 g5 Kb4 b6 c3 d6 f3 d7 a4 e5 a3 e6 c2 e7 h3 e8R a2 g6 f6 g7 h6 Re5 f2+ Ke2 h2 Kd3 Ra4 Re6 Na6 b8B Ne7 g8R Nf5 b7 Qe8 d8N Nd4 Ne2 Bc5 Rg2 Rg8 Ng3 Ba7 Na3 Rg5 Qf3 Qb5+ Nc4 Kb3 Be2 f1Q Ba3 c1R Bf8 Re1 Re7 Qf2 Nf1 Bg4 Qc6 Bh5 Bg4 Ree5 Bc8 Bd1 Qd7 Re6 Be5 Nf3 Rg4 Rb4 Rh4 Ka4 Kc3 Nc5 Qc6 Nd3 Nb6+ Ka3 Rg1 h1Q Rg2 Qhg1 Rgh2 Qg4 Nd7 Ka4 Bg3 Rf4 b8B Rff5 Bbe5 Rf4 Rb1 a1B+ Rb2 Be2 Kc2 Bd1+ Kb1 Be2 Qb6 Bd1 Rb4+ Ka3 Qb7 Bb2 Rc4 Bbd4+ Rb4 Bdb6 Ka1 Ba5 Ra4+
n1b1R3/Br5q/1BpB1k2/3n2r1/Nb2NN2/5R1p/bnrQNP1K/q1R4B b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 b4 e5 g4 a5 b6 h5 b7 h3 d6 h2 g5 e3 d7 a4 d5 a3 g6+ Ke7 b5 a2 g7 e2 b6 c6 d6+ Kf6 Bg2 e4 Be3 h4 Qd2 h3 Nc3 Qc7 d8N Nd7 b8B Ra5 b7 Rg5 Bba7 Nb6 b8B Ne7 d7 Ned5 Na4 Rh7 Ne6 Bb4 d8R Na8 Re8 Qe7 Rc1 a1Q Beb6 Qf7 Bd6 Qc7 Nf3 Qe7 Rg1 h1B Nfd4 Qd7 Bf1 Bf3 Rg2 Bg4 Nf4 Be6 Rg3 Bg8 Qc3 Bf7 Rf3 Qf5 Kd2 e1R Bg2 Re2+ Kd1 e3 Bh1 Rc2 Ke1 Qg6 Kf1 Qh5 Qd2 Bfe6 Bg2 e2+ Kg1 e1N Nde2 Nd3 Kh2 Nb2 g8N+ Kg7 Ne7 Kf6 Nf5 Rb7 Nfg3 Qh7 Bh1 Ndc7 Qe1 Ba2 Qd2 Nd5 Ne4+
n2q3b/1B2n2B/bP3p1R/q2N4/1Brpn2B/NKQRR1q1/1N4r1/1bk2N2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 h4 Kf6 b4 Kf5 e4+ Ke5 c4 d5 Kc2 a5 b6 g5 h6 a4 b5 a3 b7 d3+ Kb3 Kd4 h5 g4 h7 f6 b6 g3 c5 g2 e5 d2 h6 Ke3 e6 f3 e7 a2 e8N d4 c6 f2 c7 Qd7 Nd6 Ra7 Ba3 Na6 b8B Qc6 Rh3+ Qf3 Qc1 Bd7 c8B Qg3 Bb7 Nc7 Ne2 g1Q Bb4 Na8 Na3 Bb5 Qc3+ Bd3 Re1 a1Q Bfg2 d1N Bge4 f1B Nc2+ Kf2 Bc7 Qa5 Nc4 Bg7 Nb2 Ne7 Bcd6 Rb8 h8N Rg8 Ng6 Bh8 h7 Rc8 Ngf4 Rc4 Bf5 Q1g2 Bb8 Qgd5 Be5 Qd7 Nd5 Qd8 Bf4 Kf3 Bg5 Nf2 Bh4 Ne4 Rd1 Qc5 Re1 Ra2 Rd1 Qa5 Rd2 Bg7 h8R Kf2 Rh6 Bh8 Bh7 Kf3 Nce3 Bb1 Rd3 Kf2 Ng1 Be2 Nf3 Bf1 Nd2 Ke1 Nc2+ Ke2 Na4 Kd1 Nb2+ Kc1 Re3 Be2 Nf1 Rc6 Nd1 Ba6 Nb2 Rc4 Rd3 Qg7 Rhf3 Qg3 Rfe3 Nc6 Na4 Ne7 Na3+ Rc2 Nb2 Rc6 Qc5 Rd6 Qc8 Rdc6 Qc7 Rg2 Nc2 Rd6 Qc4 Rc6 Qc3 Rc4 Na3+
3q2n1/3BB1P1/R3r3/1rpBbpB1/1N1nQR2/2rN2K1/qNbq3N/k2R2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 Kd4 d6 a5 g5 f5 e5 c5 b6 h5 b5 h3 g6 h4 d7 h2 b7 h3 b6 a4 g7 a3 e6 a2 e7 f3 e8B Ra5 Nc3 Qg5 d8R+ Nd7 b8N Qe7 b7 Rh6 Bc4 Re6 Na4 Rb5 Bd5 Ne5 Bd7 Nc6 Kg3 f2 Na6 f1R b8N Bb7 Qe1 Qf6 Re8 Qd8 Nb2 Be7 d3 Bg5 Qe4+ Kc3 d4 Be3 Nf3 Bg1 Bg5 Rc1 Nb4 Rc2 Rd1 a1B N8a6 Rc1 N4d3 Kc2 Bc8 Kb1 Bd7 Ba8 Rf1 Bb7 Rf2 Rc3 Nab4 Ba6 Rf8 Bb7 Rf6 Ba8 Na4 Bb2 Nc1+ Ka1 Bc4 Bb7 d5 Nd4 d6 Bd5 Ba2 Bb3 Rg6 Bd1 Bd5 Bc2 Rf1 Be3 Rhg1 h1Q Rd1 h2 Rgf1 Bg1 Rh6 Be3 Rf2 Qe1 Rf6 h1Q Nh2 Ba3 Nb2 Qd2 Rf4 Qf1 Bc8 Qc4 d7 Qa2 Rh6 Qf8 d8B Qf6 Bd7 Bg1+ Qe3 Qf8 Bde7 Qd8 Qf3 Re4 Ra6 Re6 Nc6 Bb4 Qd3 Ba5 Nb4 Bc7 Qf3 Be5 Qe3 Bd3 Qe4 Bc2+ Ncd3+
RQ1n4/2p4r/q2p1qNq/b3B2R/1n2r3/N1N2R1K/1kPr1bnB/NB4B1 b - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 h3 g5 Qd2 g3 Qf4 g2 Bd2 g4 Bc1 g3 Qd2 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 e4 Kf7 b4 Kf6 f4 a5 f5 Ke5 f6 h5 f7 a4 b6 d6 b7 a3 b5 a2 g5 d3 g6 Kd4 e5 h4 b6 h3 e6 h2 e7 Qd7 e8R Qb5 g7 Ra6 Re3 Rh7 Ne2+ Kc4 Rf3 g1Q Nec3 g2 Bf4 Ne7 g8N Nbc6 b8N Nd5 b7 Ra7 Na6 Bg7 b8B Nd8 f8B Qd4 Ne7 g1B Ng6 Nb4 Nc5 Qf6 Nb3 Ra4 Ba7 Qa6 Be2 Bh8 Kf1 Bf2 Kg2 Bg7 Be7 Bh6 Be5 Bd2 Bf8 Bde1 Bh6 Bd2 Kh3 Bde1 Rg1 h1Q+ Bh2 Bd2 Rg5 Bde1 Rh5 Bd2 Rg3 Bde1 Bg4 d2 Qf3 d1N Bf4 Bd2 Qa8 Ne3 Qb8 Ng2 Be5 Qc1 Rf3 Bde1 Nb5 Qh6 N1c3 Bd2 Re1 a1R Be6+ Nd5 Rf1 Rd1 Na1 Bde1 Rh1 Rd2 Bf7 Bb6 Be6 Ba5 Bag1 Bf2 Bf7 Kc5 Bg8 Re4 Be6 Nb4 Ba2 Nbc6 Bb1 Kb4 Nd4+ Ka3 Ndb5+ Kb2 Na3+ Nb4 Qb5 Rc4 Bhf4 Rh8 Rh4 Qhf8 Kg4 Re4 Rh7 Rd3 R1h5 Nb7 Kh3 Rd2 Bfh2 Qh6 Re7 Rh7 Re8 Rc4 Rd8 Re4 Ra8 Nd8 Qb8
1R6/pq1p4/P1n1nQBq/1N2R1q1/1b1Bbr1N/2NR3N/R1K2bB1/3n1r1k b - - 0 1 illegal: No possible last move, all moves rejected
n1R1bN2/4B3/rR1b3K/1r1nB1N1/1rP2R2/rkpq1r1B/R2p4/2QBn2N b - - 0 1 illegal: No proof kernel
KB1kNn2/b1BBnb2/1NRr4/qpQ5/2r2BpR/bNR3b1/2N1bP2/2n5 b - - 0 1 illegal: No possible last move
B4r2/2kBR1RQ/1nbRRbpN/N4r2/3bqp1n/3NBb1b/K2P4/N2n4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 Kd7 h4 f5 e4 b5 a5 c5 h6 b3 h7 b2 a6 b4 a7 b3 e5 f3 e6+ Kc7 h5 f4 d6+ Kb7 h6 c4 d7 c3 e7 c2 e8R g6 Nh3 Nc6 Nf2 Qa5 d8N+ Kc7 Bh3 Qh5 Ra6 Qd5 Re6 Bc5 Nd3 Nge7 Nb7 Bd7 Na3 b1B Na5 Nf5 Bb2 c1B Bd4 b2 Be3 Qe4 Nc2 Nce7 Na1 Nd5 Rad6 Raf8 a8B f2+ Ke2 Rf6 Re1 Rhf8 h8R Nh4 h7 Bd4 Rg8 Rf5 h8N Nb6 Nf7 Bc6 Nh6 Ba2 Qc2 b1N Kd1 f1B Qc5 Bd5 Kc2 Bcb2 Rg7+ Kb8 Qc4 Nc3 Kb3 Nd1 Ka2 Bf6 Bg4 Bh3 Qb3 Bbd4 Ree7 Rh5 Bd7 Rf5 Qc4 Kc7 Re2 Qf3 Re1 Be4 Qf7 Qg2 Qg8 Bf3 Qh7 Qe2 Bg1 Qg2 R1e6 Qe2 Bf2 Qe4 Be3
2KB1B2/b1Bp1r1N/B1R3nR/n4Qn1/1PN4n/1NrR4/1r3Np1/2qbn1k1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 a5 c4 g5 b4 d3 h4 d2 f6 Ke3 f7 Kf2 b6 e5+ Kb5 a4 c5 a3 b7 e4 h5 g3 h6 g4 c6 e3 f5 e2 h7 e1N f6 g2 c7 g3 Kb6 a2 Ba6 Ne7 Qc2 Nbc6 b8N Ng6 Rh2 Na5 Rh6 Bb7 Na3 Bf3 Nc4 Bd1 Nc6 Rc8 Nd4 Kf1 Nh3 g1N Rb1 a1R Nf2 g2 Rb3 Rb1 Qf5 Nh3 Rd3 Kg1 Nb3 Rb2 Ka7 Be7 f8B Ng5 f7 Rg8 h8B Rg7 Kb6 Rh7 Be5 Bc5+ Kb5 Ba7 Bf6 Ra8 c8R Qc7 Bd8 Qf4 Rc6 Rc8 Bc5 Qc7 f8N Rf7 Nh7 Qf4 Bf8 Rc7 Rf6 Rc6 Na3 Rc3 Rc6 Bf3 Bc7 d1N Nc4 Ne3 Bd8 Bd1 Bd2 Ng4 Be3 Qc7 Bb6 N4e5 Kc5 Qc8 Kd6 Nh4 Bbc7 Neg6 Bde7 Qe8 Bed8 Qe3 Bb6 Rbc2 Kc7 Qc1 Kc8 Rb2 Bbc7
nb2QNb1/k1N4N/3K2np/4RR2/rB2PqB1/bbR2p2/r1NB1r2/3n1R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Ke5 Kc7 e4 Kb7 b4 f5 d4 f3 g4 f2 b6 h3 g5 c4 d6 h2 d5 h6 b5 c3 d7 a4 d6 f4 g6 a3 g7 a2 Nf3 c2 Be2 f1R Bd2 c1B Qa4 Rf2 Na3 Ra6 Nc2 Rh7 Ng5 Ra5 Bg4 Na6 Rf1 Ne7 g8R Qc7 d8R h1B Re8 Ba3 Rac1 a1N Rh8 Rg7 Nh7 Be6 Rg8 Rf7 Rg5 Bf3 Rf5 Bd1 Bb4 f3 Bd2 Qc8 d7 Nc7 d8B Na8 Bc7 Rg7 Bd6 Bg8 B6b4 Ra6 Kd6 Ng6+ Re7+ Kb8 Be1 Ra5 b7 Ka7 b8N+ Qb7 Nd7 Qb8+ Kc6 Qg3 Ree5 Qf4 Bed2 Bd6 Ndf8 Bb8 Kc5 Rd7 Kc6 Rd4 b6+ Ka6 b7 Ka7 Qb5 Ra4 Kc5 Rd6 Qe8 Rda6 Ne3 Bdb3 Rc3 R6a5+ Kc6 Nc2 Kd7 Ne1 Nc2 Ng2 Kc6 Ne3 Kd7 Bc7 b8N Nd1 Na6 Bb8 Nc7 Bb2 Ng5 Ra2 Kd6 R5a4 Ngh7 Bc1 Qb5 Ba3 Qe8
1r1BR2N/8/2r3Pn/rq1B1r2/3Nbpk1/1R4Q1/qn1pB1BR/1rb2KRN b - - 0 1 illegal: No possible last move
1RNqb3/1r4rp/rRrp1bk1/2Rn4/BPN2R1n/4B2r/3K2QN/1qN2B2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 f4 e5 g4 a5 b4 d3 f6 a4 b6 a3 b7 a2 f5 e4 c5 e3 g5 d6 g6+ Ke8 c6 e2 c7 h3 g7 Kf7 Nc3 h2 Qd2 Be7 Nf3 Na6 b8R Bd7 c8N Ra7 Rb6 Nh6 g8B+ Kf8 f7 Kg7 f8N Rb7 Qc2 Bf6 Be3 Nc7 Kd2 e1R Rc1 a1R Bb3 Nd5 Ne2 Ra6 Ng6 Rg8 Nge5 Be8 Nc4 Kf7 Ba4 Rg7 Rg1 h1R Rg4 Rh2 Qa2 Rh3 Rc3 Ra1 Rf4 Rc1 Nh2 Rc2+ Kd1 d2 Nc1 Bd4 f6 Nf5 Ke2 Kg6 f7 Bf6 f8R Nh4 Kd3 Rb2 Rc2 Rb1 Rc3 d1Q+ Qd2 Qb3 Qe2 Ra1 Kd2 Qb1 Rc2 Ra3 Rg8 Rc3 Qg2+ Bg5 Nb2 Rcc7 Rc5 Rc6 Nc4 Qc7 Rf2 Bd7 Na7 Qb8 Rc8 Be8 Rf4 Qc7 Rb8 Qd8 Qf3 Be7 Nc8 Bf6 Qg2+
b1n5/nr1Rp1B1/KnB5/2qNr1PB/2NkNq1N/4b1RQ/R1pn4/3n3R b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 f4 Ke6 g4 Kd5 b4 h5 d4 a5 b6 c5 b5 c3 g6 h4 f5 c4 f6 h3 g7 c2 f7 e3 b7 c3 Kd3 h2 b6 a4 Nd2 e2 Ngf3 a3 Bg2 a2 Bb2 c1Q Nc4 c2 Qf1 Nc6 b8R Ra7 b7 Nf6 g8B Qd6 Ng5+ Ne4 Bh7 Qc7 Bg6 Bh6 f8N Q1f4 Bh5 Qcd6 Ra8 Qc5 b8N Rb7 Na6 Na7 Ng6 Bd7 Rb8 Bc6 Rg8 Rh7 Nh4 e1N+ Ke2 Nf3 Kd3 Nd6 Ne4 Ndc8 Nb4+ Ke6 Rg7 Nd2 Nd5 Rh8 Rg5 Rf8 Bf3 Rf5 Qh3 Re5 Rg8 Qf5 Bg2 Be3 Kc3 Qf4 Rg5 Rd7 Rg7 Ba8 Rg8 Qc7 Kb4 Qc5+ Ka4 Rb7 Rg7 Qd6 Ka5 Qc7+ Ka6 Qc5 Rhg1 h1N g5+ Qg4 Rh7 Nf2 Bf3 Nd1 Rg3 Qf5 Rh8 Nf2 Rh1 a1N Rd8 Qg4 Rd7 Nd1 Ndc3 Qc7 Nb6 Rd5 Nf2 Nab3 Rd8 Re5 Rd5 Qf5 Ra5 Rc5 d5+ Ke5 d6 Nc4 d7 Rb5 d8R Nbd2 Ra2 Qc6 Rd7 Qf4 Be4 Qd6 Bc6 Rd5 Nfe4 Qc5 Nba4 N4b6 Ba1 Rd6 Nb2 Re6 Nd5 Kd4 Nc4+ Kd3 Bg7 Re5 Rh2 Kd4 Rh1
B2R1N2/1NpKP3/bN2nq2/5n2/1k1nBprQ/q1R1Rn2/1Nn4r/4BBb1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 a5 e4 f5 b4+ Kb6 d4 c3 d5 a4 d6 h4 g6 f3 d7 f4 Ke6 f2 g5 c2 g7 a3 e5 a2 g6 h3 Qe1 h2 Nc3 Na6 Nf3 Bd6 Bd2 c1N Nd5+ Ka7 b6+ Kb7 b5 Ne7 g8B Bc5 g7 Rh5 Bh7 Ng8 Be4 Nh6 g8B Nb3 Rc1 a1Q Rc3 Be3 Rg1 h1N Rg3 Nb4 Bf7 Kb8 b7 Ka7 b8R Nc2 Nb6 Ba6 Rc8 Qh8 d8N Qf6+ Kd7 Nbd4 e6 Qa3 e7 Ne6 Ne5 Rh2 Nec4 Nf5 Nb2 Nfd4 Nb7 Rb8 Rh3 Ng3 Rd8 Ngf5 Bh5 Rc8 Bhf3 Ra8 B1g2 f1N Qh4 Rb8 Be1 Nd2 Bf1 Bg1 Bh1 Rc8 Rhe3 N2f3 Na5 Nh6 Ba8 Nhf5 Nb7 Nfg5 Be4 Ngf3 Rh8 Rf8 Rg8 Rf7 Rd8 Rg7 Nd5 Ne2 Na5 Nc5+ Ke8 Bc8 b6+ Ka6 b7 Kb5 b8N Ne6 Nb6 Rg4 N8d7 Kb4 Nf8 Ba6 Kd7 Ne2d4 Nb7
2RR2k1/3r1n2/1K1R1B2/n1B5/R5qB/pp1PN3/BqN3Nb/rb1rrq1Q b - - 0 1 illegal: No possible last move, all moves rejected
BbN1bR2/4rR1B/5Bpq/3rr2N/4r1BN/1Q1b1K1P/pRqk4/1nRn4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 b4 Ke6 e4 Ke5 c4 d5 b6 a5 b5 f5 c5 f3 b7 d3 h3 Kd4 b6 g6 c6 f4 h6 a4 h7 d2 c7 a3 e5 a2 e6 Nh6 e7 Nf5 e8B Nc6 b8N Ra4 b7 Ne3 Ba6 Nb4 Nc3 Bd7 c8B Bd6 Nb1 Nbc2 Bd3 Na3 Bc4 Qg5 Bb3 Kd3 Nc3 d4 Bg8 Qh6 Nd5 Nb1 Nc6 Bb8 Nce7 Bb5 Bef7 Be8 Nf6 Rc4 Qa4 d1Q Bb2 Kd2 Qb3 d3 Bd5 Re4 Nh5 Qc2 Bg4 Re5 Nc8 Nd1+ Kf1 f2 Kg2 f1B+ Kf3 Re4 Bf6 Re7 B8e6 Rg8 h8R Rgg7 Bf7 Re5 Bg8 Rge7 Bh7 Re4 Rf8 R4e5 Rh2+ Be2+ Kg2 f3+ Kg3 f2 Rf7 f1R Nf3+ Kc1 Kg2 d2 Nh4 Bd3 Be4 Rh1 Kf3 Re1 Bc6 R1e4 Rf2 Bd6 b8R Bc7 Rb7 Bb8 Rb6 Nb2 Ba8 d1R Rf1 Kd2 Rf8 Rd5 Rf7 Rde1 Rb7 Nd1 Rf8 Na3 Rc1 R7e5 Rbf7 Re7 Rh1 R4e5 Rb1 R1e4 Rb2 Nb1 Rf1 Ndc3 Rc1 Nd1 Qa3 Nf2 Qa4 Nd1 Qb3
1Q3N2/1Brr1n1K/rN1bNp2/Bk2q3/N1P2RpB/2q1q2R/3q1Rb1/1n1R4 b - - 0 1 illegal: No possible last move, all moves rejected
k5NR/B2KNq1r/2nPB2Q/1p1r2p1/q1Rb4/Nnn3b1/b2N1b2/2RBB3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 b5 d4 Kb7 f4 g5 a4 c4 h4 e6 f6 b3 f7 g3 f5 g2 h5 b2 a5 c3 f6 c2 d6 Bg7 f8B Ka7 d5 Qb6 h6 Ba6 d7 Nc6+ Kd6 e5 d8N e4 f7 e3 h7 e2 Bd2 c1B Ra4 e1Q Nf3 g1B Na3 b1N Bc4 Nh6 Kd7 Qbe3 Bc5+ Kb8 f8N Q3f2 d6 Bd4 Be6 Nf5 Rc4 Nc3 Ng6 Bb7 a6 Qe4 Be1 Bf4 Ne7 Bg3 Nf7 Ra7 Qc2 Rc8 h8R Ka8 Nd2 Qf1 Bb6 B1f2 Nh6 Re8 Qa4 Qc2 Qb4 Qa4 Nhg8 Rf8 Qb1 Rf7 Qd1 Rh7 Qh5 Bc8+ Ke8 Rc7 a7 Bb7 Qh6 Bc8 Bf7 Be6 Bh5 Bd5 Bd1 Rc8+ Kd7 Rf8 Rc5 Ba2 Rc4 Rf6 Rg1 Re6 Rh1 Re5 Bc5 Rd5 Bb6 Bc5 Rg1 Nfd4 Rh1 Kb7 a8B+ Kb8 Bb7 Nb3 Bc8 Ka8 Ba7 Bce3 Kc7 Bd4 Be6 Qe2 Kd7 Qf3 Rh4 Qf7 Rg4 Nb1 Rc1 Nc3 Rh4 Bde5 Rb4 Bed4 Rc4
Rb1qB1r1/rrrNq3/B1pN4/1Rq1B1p1/3N1Q1k/1NB5/PKRnb3/1n6 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 d4 Qf6 Kd2 Ke7 Kc2 b5 h4 f3 e4 c6 e5 f2 e6 b3+ Kc3 b2 h6 b4+ Kc2 Nd7 h5 Nb6 h7 Na4 h6 Nc3 Bf4 Ra7 Nd2 b1R Ba6 f1R Ne2 g5 Rh2 b3+ Kd3 b2 Kc2 Qe5 d6+ Kf6 d7 Bd6 d8R Kg6 e7 f5 d5 Nf6 Qc1 Rg8 h8B Nfe4 h7 Rd1 Rg2 Kh5 e8B+ Kh4 Bf6 Qe7 h8N Be6 Ra8 Bb8 d6 Bc4 d7 Qc5 Bc7 f4 d8N f3 Ndf7 f2 Ne5 f1Q Nhf7 Qfg1 Ba5 Qgd4 Bb4 Re1 Ba5 Qd7 Nd6 Qd8 Nd4 Rf1 Bg7 Rff7 Bb4 Rfc7 Nd7 Qe5 Rf2 Qee7 Rf5 Bb5 Rd5 Bc4 Be5 Be2 Qf1 Re1 Kb3 b1Q+ Ka3 Qd3 Rc1 Qb5 Rc2 Rb1 Ba5 Rb4 N2b3 Nd2 Kb2 Ncb1 Qf6 Qb6 Qf3 Rb5 Bc3 Rb4 Ra5 Qc5 Qf6 Rb6 Rb5 Rbb7 Qf4+
nQ1qn2R/rBRq2qb/1PrNNb2/1pB5/3BRrN1/2q1p2N/7K/4k2B b - - 0 1 illegal: No proof kernel
4N3/1B4Nb/qpKQ3q/2BRqRNp/n5qn/1kbPn1rB/Rr5R/5B2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 e5 Ke4 h5 a4 c5 g4 c4 f4 b6 f6 h3 d6 Ke6 d7 c3 a5 h2 f7 c2 g5 b3 a6 b2 a7 Ne7 g6 Rg8 g7 Qc7 d8R Na6 Nf3 Nc5+ Ke3 e4 Kd4 e3 Ra2 e2 Rd5 e1N Nc3 b1Q Nb5 Ng2 Ba3 c1Q Nd6 Nh4 Ne8 Na4 Bc5 Qb5 Ke4 Ba6 Kd4 Rd8 a8B Nef5+ Ke4 Qc8 Bb7 Ne3 Kd4 Bd6 f8R Be5+ Ke4 Qa5 Rf5 Bc3 Bh3 Bb5 Bf1 Qa6 Bh3 Rf8 g8B+ Rf7 Bh7 Rg7 Bf1 Rg3 Bg6 Rd6 Ng5+ Ke7 Bf7 Be2 Be6 Bg4 Rg1 h1Q+ Rg2 Qb8 Bd7 Qg1 Rh2 Bh3 Rf6 Be6 f5 Bg8 Bdc8 Bh7 Bd7 Kd8 Rf8 Rg6 f6 Qd6 f7 Ke7 Bdh3 Rg2 d3 Rb2 Qf3 Qg4+ Qf4 Qd2 Rg8 Qe1 f8N Qeg3 Nfe6 Kd7 Bc8+ Kc6 Rf8 Kb5 Rff5 Qf8 Bb7 Qh6 N6g7 Qe1 Bd4+ Kb4 Bc5+ Kb3 Rd4 Neg2+ Kd5 Qe7 Qd6 Ne3+ Kc6 Qe5 N5e6 Qgf4 Rd5 Rg3 Ng5 Qf3 N5e6 Qg4 Ng5
1K2N3/2RNB1Rr/p1B1qb2/N3nn1q/2B1Q1q1/P2p1b2/5nNk/3r1RBq b - - 0 1 illegal: No possible last move
bkR3qN/8/p1n3q1/r1P2B1n/5QR1/RBb4p/Nr1n1B2/K2NRNqn b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 g4 d5 b4 Kd7 c4 Kc7 Kc2 h5 Kb2 d3 f4 a6 b6+ Kb7 g5 d4 b5 h3 f6 h2 c5 d2 f5 h4 f7 d3 f6 h3 g6 e4 g7 e3 Nf3 e2 Qa4 e1N Nc3 d1Q Ra3 d2 Bd3 Nc6 Ka1 Qc2 Bf5 d1Q Qf4 Nce7 Nd2 Nd5 Nf1 Qdd3 Nd1 Qe8 Be3 Qde2 Bf2 Nge7 g8B Bg7 f8R Qg4 Rf7 Rb8 Rg1 Ka8 b7+ Ka7 Rgg3 Nc6 Rc7 h1N Bge6 Qg5 Rg4 Nf3 Bg8 Nd2 Bf7 Ra8 b8R+ Bb7 B7e6 Qeg6 Re8 Rb8 b6+ Ka8 Bg8 Rh4 Re1 Qb3 Bf7 Qg3 B7e6 Qg1 Bg8 Nd4 f7 Nf6 f8N Nh5 Bb3 Bf3 b7+ Ka7 Nd7 Nc6+ Ne5 Qd8 Qe4 Qg8 Qf4 Bh6 Nf7 Bg7+ Nb2 Bc3 Nh8 Rd8 b8N+ Ka8 Nd7 Rb8 Nf6 Rb4 Nd5 Kb8 Be3 Ra4 Bf2 Ra5 Nb4 Bd5 Rg5 Rg4 Na2 Rg2 Rg3 Nb4 Rg5 Ba8 Rg4 Nc6 Be3 Nc4 Bd4 Rc2 Be3 Nd2 Bf2 Bb4 Nd1 Rb2 Qe5 Bc3 Qe4 Na7 Qf4 Nc6 Rc8+
1n2bK2/b2b1B1p/q2kp3/1q1bQB2/NqBN3B/N3r2P/3Nr2R/1RR1n3 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 d4 a5 g4 f5 c4 e3+ Kf3 e2 b6 e1Q g5 a4 g6 a3 g7 a2 h3 Ra7 d5 Rc7 d6 Na6 c6+ Ke6 b7 Qh4 b8R Nc5 d7 Nf6 Rh2 Qe8 Na3 Nd3 d8N+ Kd6 g8B Nd7 Rbb1 Nb8 Bf7 Bd7 Qe1 Rb7 c7 Rb2 c8B Re2 Nc6 e6 Ba6 Rg8 Nd4 Rgg2 Qc3 Re1 Be3 Rge2 Bf2 Be7 Bb5 Bd8 Rc1 Bb6 Rab1 a1Q Bc6 Ba7 Be4 Qhe7 Bh4 Qa2 Nac2 Qa6 c5+ Ke5 c6 Qb4 c7 Kd6 Na3 Re3+ Kg2 f3+ Kg3 f4+ Kg4 f2 Kg5 f3 Kh6 R1e2 Kg7 Ne1 c8N+ Ke5 Nb6 Kd6 Bg2 f1B Bf5 f2 Bd5 Bg2 Bc4 f1B Na4 Bd5 Ngf3 Bg2 Qa1 B5c6 Nd2 Bgd5 Bg8 Qh5 Bf7 Be8 Kf8 Bcd7 Bg4 Qf5 Qb2 Qd3 Bf5 Qdb3 Qc2 Qbb5 Qe4 Q3b4 Qe5+
3N1n2/r5pB/1BN5/b1n3nN/r1b4K/nRPpBR1B/q2N4/kbR2Q1q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 e4 Kf6 h4 Ke5 b4 f5 h6 a5 h7 d5 h5 a4 b6 d3 h6 Kd4 e5 a3 b5 a2 b7 d2 b6 f3 Kg3 f2 e6 f4+ Kg4 f3 Kh5 Nf6+ Kg5 Ra7 e7 Na6 b8R Bf5 e8B Bb4 b7 Nc5 Rh3 Qa5 Bg6 Nfd7 Kh4 Nf8 Ne2+ Kc4 c3 d4 Bg2 f1Q Ng3 f2 Nh5 Qh1 Qf1+ Bd3 B6e4 d1N Be3 Kb3 Nd2+ Kb2 Rc1 a1N Bg6 Rg8 h8N Nc2 h7 Qa2 Nf7 Na3 h8N Ba5 Nd8 Bb1 Nhf7 Ka1 Nc6 Rh8 Bh7 Rg8 Qe1 f1B Nfd8 Nf2 Qd1 Bc4 Qf1 Qg1 Rf3 d3 Bh3 Qh1 Ra8 Nfe4 b8B Rh8 Bc7 Ng5 Rb8 Rg8 Rb3 Rh8 Bg8 Rh6 Bh7 Rf6 Ne7 Rb6 Nec6 Rb4 Bb6 Ra4 Rb4 Qg2 Rb5 Qh1 Rb3
b4R2/1qN2PR1/1nN1p1Br/R2Bnpk1/bRr1B3/2q2Q2/KN6/b1q2qB1 b - - 0 1 illegal: No proof kernel
4nNb1/q2pRq1R/1B1R4/n1r1pN1B/Q4b2/N4B1R/rb1bP3/1KNrk3 b - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 axb5 cxd4 g4 g5 fxg5 hxg4 Kd2 f5 c4 Kf7 Kc2 Ke6 b4 Ke5 h4 Ke4 g6 e5 h5 a5 h6 a4 b6 g3 g7 f4 b7 g2 c5 a3 h7 f3 c6 f2 b5 a2 b6 Bb4 c7 Bc3 Na3 Qe8 Be3 Ba5 Nh3 g1B Nf4 Bb4 Nd3 Bh2 Nc1 Nc6 b8R Qf7 b7 Nf6 g8B Bf4 Rh3 d3+ Kb2 d2 Qa4 d1R Bb6 Ne8 Bg2+ Kf5 Bd5 f1Q Bf3 Qg1 Rb1 a1B+ Kc2 Qf6 Bf7 Bbd2 B7h5 Qf7 Rb4 Bd4 Kb1 Bb2 Rd4 Na5 Rd6 Rg8 h8N Rg6 Rd3 Rc6 Ng6 Rc5 Rd6 Ra6 Ra8 Ra7 b8R Ba6 c8N Bc4 Nf8 Qd4 Bfg4+ Ke4 Bf3+ Ke3 Ne7 Kf2 Nf5 Ke1 Rd8 Qg7 Rdc8 Bg8 Rcc6 Qh7 Re6 Qf7 Re7 Qdd5 Rd6 Qb7 Rc8 Ra8 Rcc6 Qa6 Rh6 Qa7 Rcd6 Qb7 Qc6 Nc4 Nb5 Ra2 Rh7 Na5 Na3 Qa7 Qa4
k2r1R2/3p2n1/R1N2p2/NN3q1q/1nRN1RBb/4PBb1/4bbK1/r1r1B2Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 h4 g5 c4 g4 b4 d3 e3 g3+ Kg2 d2 h6 f6 c5 a4 b6 a3 b7 a2 h7 Na6 b8N Ra7 c6 Bc5 c7 Bd4 b5 Nb4 b6 Be5 h5 Ne7 b7 Nf5 h6 Ng7 Nc6 Ra8 b8N Ba6 c8B Be2 Bb2 Qa5 Na3 Bd6 Rh5 Qf5 Na5 Kd8 Nbc6+ Kc7 Rh4 Rd8 h8R Ra6 Rc1 a1B h7 Ra7 Bd4 Bc3 Rf8 Be5 Qe1 d1Q h8R Bd2 Bb7 f3+ Kh1 f2 Kg2 Bf4 Nf3 Bg5 Re4 Bh4 Rf4 Bc3 Bc5 Be5 Nfd4 Bd6 Rc4 Raa8 Ne7 Kb8 Bf3 Ra6 Nec6+ Ka8 Nab5 Bc7 Kh1 g2+ Kh2 g1B+ Kg2 Qdb1 Qc1 Qh5 Bg4 Qbf5 Qd1 Bd3 Bfe2 f1R Bef3 Bgf2 Qb1 Rc1 Bb6 Rc2 Qh1 Be2 Bc5 Rc1 Be7 Nc2 Bb4 Bb8 Be1 Nb4 Re4 Bbg3 Rf4 Rb8 Rc8 Ra7 Rhf8 Ra6 Rc7 Rd8 Rb7 Ra7 Rb6 Ra6 Nab3 Ra4 Nba5 Raa1 Ra6+
4nR2/1p2k2q/3r2br/K1NBqPB1/1nrR1BNR/1B6/Qp2Nb2/1b2N1r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 e5 Kd2 h5 a4 c5 f4 c4 g4 h3 g5 e4 g6 h4 d6 b3 Kc3 b2 Kb4 h2 f6 e3 f5 c3 d5 h3 g7 e2 a5 e1Q f7+ Kd7 a6 c2+ Nc3 Qde8 a7 Q1e4+ Bc4 Kd8 Ka5 Kd7 Bf4 c1R Qa4+ Kd8 d7 Rh6 Qa2 Bc5 f8R Nf6 g8B Qe5 Nf3 Bf2 Ne1 Ke7 d8N Na6 Ne2 Qd7 Ne6 Ne8 Nc5 Nb4 Bb3 Rc4 Rd1 Rb8 a8N Rd6 Rg1 h1R Rd4 h2 Rg4 Rg1 Nb6 h1B Rh4 Be4 Bf7 Rh6 Bg8 Bb1 d6+ Kd8 Nd5 Qh7 Bf7 Be6 d7 Rc8 Bg8 Bf7 Ne3 Ke7 Ng4 Bg6 Bd5 Rc6 d8B+ Kd6 Na4 Kd7 Bdg5 Rd6 Rf6 Kd8 Nc5 Ke7 Rf8+
1RR5/1p4PQ/r3n1bR/1K3Bb1/NBNq3p/B1NBN2n/q3r1r1/1rq4k b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kd3 f5 Kc4 c5 g4 h5 e4 b3 a4 f3 e5+ Kc7 e6 Kd6 a5 f4 e7 b2 e8B f2 a6 f3 g6 Qa5 g5 Nd7 g7 Qd8 a7 Rh6 g6 Ngf6 g8N Be7 g7 Nh7 Qd3 Ndf8 Nf6 Ng5 Bd7 Nh3 Bf5 Rg6 Ng4 Bg5 Ne2 Ne6 Na3 b1Q Nc3 Qa2+ Kb5 c4 Ne3 Qf6 Be2 f1R Bd2 f2 Rc1 Qe5 Qc2 Rd1 Bed3 f1R Qb1 Rg1 Rc2 Rb8 a8N Rg2 Nb6 Re2 Nba4 Ra8 Rh2 Ra6 Be1 Ke7 Bd2 Kf6 Rh1 Qe4 d6 Rc1 d5 Ke5 d7 Kf4 d8B Kf3 d6 Qd4 d7 h4 Rg1 Kf2 Be7 Rce1 d8R Rc1 Ncd5 c3 Nac4 Rce1 Rc1 c2 Bdb4 Kf3 Rf1+ Kg3 Rf4 Kh2 Ndc3 Kh1 Ba3 Rf1 Beb4 Rd1 Rd6 Bd7+ Rc6 Be8 Re4 Bf7 Rc8 Rf1 Rb8 Rfe1 Re5 Rf1 Rc5 Rg1 Rf1 c1Q Rf4 Rgg2 Rcc8 Rf6 Re4 Bg6 Re5 Rf7 Rd5 Re7 Rdd8 Rb2 Rh8 Re8 Qc2 Rb1 Rh6 Rf8 Bfe4 Rf2 Bf5 Re2 Bg4 Ref2 Bde2 Bf7 Qh7 Bg6 Bd3 Re2 Bgf5
Nb4nB/P1b1p1rQ/2r1RkBR/r1B5/2b3R1/1NB1Np2/2qbq3/N1n4K b - - 0 1 illegal: No proof kernel
bb3b2/1b5P/2br2nN/B1K1RQk1/BB3n1R/1N2ppq1/R1N2N2/1r1b2R1 b - - 0 1 illegal: No possible last move, all moves rejected
n3nbbq/1n1N1P2/2B1n3/2Nn3p/3kn1p1/R3R1Br/1N1B2N1/1QRK1B1r b - - 0 1 illegal: No proof kernel
6bk/1r2B1RB/1RN1N1b1/5np1/nNBbp1r1/Q1NR4/3bq1P1/n1nR3K b - - 0 1 legal: proof: e4 c5 h4 b5 a4 f5 axb5 Qc7 d4 cxd4 exf5 Qf4 Bd3 Qxh4 Bf1 Qh2 b4 Kf7 f4 a5 Kf2 d5 c4 e5 c5 g5 b6 Kg7 b7 h5 b5 a4 b6 e4 c6 h4 c7 a3 Ra2 d3 Ne2 d4 Qe1 h3 Rg1 d2 Ng3 d1B Rd2 a2 Qe3 a1B Rd3 Nh6 Ba3 Ra7 Nh1 Bb3 Nc3 Na6 b8R Bb4 b7 Nc5 f6+ Kh7 f5 Na4 Qc1 Bg8 f7 Qd6 f8R h2 f6 Bf5 c8B Qa6 f7 Bg6 Re8 Nf5 f8N+ Kg7 Qb2 Rh4 Ne6+ Kh8 Re7 Rg4 Rg7 Ba5 Be7 Qb5 Ne2 Bd2 Nc3 Qc4 Qa3 Qa2 Rf3 d3 Be2 Qc2 Rd1 Bb2 Kf1 Ba1 Nf2 h1N Kg1 Nhg3 Bf1 Ne2+ Kh1 Nc1 Bd7 Be1 Re3 d2 Bc4 Qd3 Be8 Qe2 Nd3 Bb2 Nb4 Ba1 Rc8 Bb2 b8N Rb7 Rd3 Ba1 Ncd5 Bd4 Rc7 Ne3 Rc5 Nc2 N8c6 Na1 Ra5 Bg3 Ra7 Bf4 Ra6 Bfe3 Rb6 Bf4 Rg1 d1N Nc3 Ne3 Rgd1 Nf5 Bf7 Bh5 Bg6 Bd2 Bh7 Bhf7 Qb3 Bg6 Qa3
r6R/2K1n2N/p1p3R1/2R1rB1k/1b1Qr1PN/N4BB1/1nRqN2r/3bbb2 b - - 0 1 illegal: No possible last move, all moves rejected
br1Q1N1K/2pNq1B1/5N2/n1B3n1/3nN1bb/3Rpr2/PB1R1R1b/nB1k4 b - - 0 1 illegal: No possible last move, all moves rejected
3n1b1r/2N3k1/n2NBbQ1/2p3Rq/p1R1bK1b/N1R1B3/2PbR1B1/nN5b b - - 0 1 illegal: No possible last move, all moves rejected
r1r3N1/3BRb2/rNpk2N1/2b1R1B1/R3qN1K/p3r3/P1r2rBn/R5Qq b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Na6 Bc1 Nc5 Bh3 Ne4 Bg2 fxg4 Bf1 g3 Nd2 g4 Nb1 Ng5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 b4 Ke7 e4 a5 f4 h5 e6 d5 g6 g2 Kf2 d4 Kg3 d3 f5 h4+ Kf2 d2 g7 h3 Kg3 c3 b5 c2 f6+ Kd6 b6 a4 f7 a3 e7 h2 e8B Nh6 g8N Be6 b7 Qe7 Nh3 g1R+ Bg2 Rf1 b8R Rf2 Qg1 d1R Nd2 Re1 Rb7 c6 Bd7 Ra6 Nf4 Re3+ Bf3 Qe8 Kh4 g3 Bg2 Bd5 Rb4 Qe5 Ra4 Qd4 Bb2 c1R Bc3 Qc4 Bf6 Rc2 Bg5 Be7 f8N Bf7 N8g6 Ng4+ Nh6 Rc8 e5+ Kc5 e6 Kd6 Ng8 Qe4 Re1 Bf8 e7 Rca8 Bf3 g2 e8R Rc8 Re7 Rca8 Qf1 g1R Bg2 Rc8 Ra1 Rca8 Qb1 Rd1 Re1 h1Q+ Bh3 Nh2 Bg2 Rc8 Qb6 Rb1 Qa7 Rbb8 Qc5+ Kc7 Nc4 Rba8 Re5 Bd6 Nb6 Bf8 Qd4 Bc5 Re2 Ra5 Qd1 R5a6 Qg1 Kd6 Re7 Rc1 Rb2 Rcc2 Rb5 Bb4 Rf5 Bc5 Rfe5
B2R4/Bb1p2QR/b2b2Nb/1r2p2N/RB1rB2R/4q3/1bkP2K1/q1b3nN b - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 axb5 Nh6 c5 Nf7 b6 Nh6 b5 Ng8 c6 Na6 Ba3 Nc5 Bc1 Nb7 cxb7 Bh6 Ne2 Bg7 Ng1 Bf8 b8R Kf7 f4 Kf6 Kf2 Kf5 b7 h5 b6 a5 g3 c5 Bg2 c4 Ba3 a4 Bd6 h3 Qe2 h2 Qf3 c3 Qe2 a3 Qe1 a2 Bb4 e3+ Kf3 h4 Ne2 h3 Qg1 c2 Nbc3 c1B Ne4 Qe8 Nf6 Ra4 Nh5 Bh6 Ra8 e6 b8B Ne7 b7 Nd5 Ba7 Nc3 b8R Ba6 Rd8 Rf8 Rb1 a1B Rb3 Bab2 g4+ Kg6 g5 Rf5 Ra3 Rb5 Neg3 e2 Rb3 e1B f5+ Kh7 f6 Kg6 f7 Ne2 Rd3 Bf2 Rd6 Bc5 Rd4 Bd6 Rh4 Qe7 Qd4 e5 Qg4 Ng1+ Kf2 Qe6 Bc6 Qb3 f8N+ Kf7 Kf1 Qe3 g6+ Ke7 g7 Kf7 Bbc5 Rd4 Be4 Ke7 Qg5+ Kf7 Ng6 Ke6 Bc2 Kd5 Bb4 Kc4 Be4 Kb3 g8B+ Rdd5 Bh7 Rd4 Bc6 Kc2 Qf6 Bc8 Qg7 Bb7 Bb8 Bc8 Ra4 Ba6 Ba7 Ne2 Rg1 h1B Ba8 Bhb7 Nh1 h2 Rg3 Ng1 Rgh3 Bc7 Nf2 h1Q Rh2 Qd5 Nh1 Qa2 R2h3 Qa1 Rh2 Nf3 Kg2 Bd6 Nh8+ Rd3 Be4 Ng1 Ng6 Ba3 Nhf4 Bg5 Rhh8 Bab2 Nh5 Bf4 Rh4 Bh6 Bf3 Rdd5 Rh7 Rd4 Be4+
K1Nk4/1Q3n1r/N3n1Rq/1BB4R/5b2/2B1p2N/p1b1PRp1/rr1BN1bn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kf2 a5 b4 f5 d4 e5 h4 c5 g6 f3 Ke3 f4+ Ke4 c4 h5 f2 b6 f3 b5 c3 h6 c2 d6 g3 Kd5 e4 b7 a4 b6 e3 h7 a3 d7+ Ke7 g7 a2 Na3 Ra4 Rh5 Na6 Kc6 Ra5 b8N Qe8 b7 Rg5 d5 Qg6+ d6+ Kf6 d8N Qh6 d7 Nc7 Na6 Bc5 b8Q Ne6 Nb7 Ke7 d8R Bd6 Rf8 Rb5 Bg2 f1R Nh3 Bf4 Nd6 f2 Bd2 c1B Nc2 Rb7 Bc3 Bd2 Ne1 Rb1 Qb3 Bd7+ Kb7 Ba4 Bc6 g2 Ka8 Rh1 Bb5 f1N Rf6 Kd8 Nc8 Ng3 Rg6 Rg1 Bd4 Nh1 Bc5 Bc3 Qb4 Bce5 Qe4 Bc2 Qb7 Rb3 Rc1 Rb1 Rd1+ Bd6 Rdd5 Bh2 Rdf5 Bdf4 Rff6 Rf1 Rf7 Bg1 Rff5 Nf6 g8B Ng4 Rf7 Ne5 Rff6 Nf8 Bb3 Ne6 B3a4 Nf7 Bb3 Rg8 h8B Rg7 Rff5 Rh7 Bc3 Bc7 Rf2 Bf4 B3a4 Ra1 Nf3 Rfb1 Ne1 Bf5 Bd1 Be4 Nf3 Bc2 Ne1
kb3N1B/4n1r1/Qn6/5Rb1/q2p1rNp/BR2Pn1B/r1bpK1R1/3B1RN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 g4 f5 c4 d5 b4 Kd7 b6 Kc6 g6 Kb7 g5 a5 c5 h5 e3 f3 g7 f2+ Ke2 a4 g6 f4 b5 a3 Nd2 h4 Bh3 f1R Nc4 a2 Qd3 Qe7 Ba3 Qf6 Rb1 a1B Ne5 Rh7 Rb3 Bd6 Ng4 Ne7 g8R Rg7 Rf8 Nd7 c6+ Kb8 b7 Nb6 Rf7 Bf5 c7+ Ka7 c8R Bb8 Rg8 Qc6 Qc4 Bc2 Rf5 Be5 b8N f3+ Kd2 f2 Ke2 Qe8 Nd7 Bb8 Nf8 Kb7 Qa4 Ra7 Qa6+ Ka8 Rh2 Bc3 Rg2 Bb4 Rh8 B4d6 Rhh5 Bf4 Rf6 Bh6 Rhf5 Bg5 Rf7 Rc1 R7f6 f1N Rf7 Nd2 R7f6 Nbc8 b6 Qa4 Rf1 Ra1 R6f5 Rf7 g7 Ra2 g8B Nf3 Bh7 Rg7 Bg6 Rf7 Bh5 d3+ Kf2 d2 Ke2 d4 Nh2 Bc7 b7+ Kb8 Ng4 Nb6 Rc5 Bh2 Re5 Rf4 Rf5 Kc7 b8B+ Kc6 Qd3 Kb7 Be5 Ka8 Bf6 Ng8 Bh8 Rg7 Qc4 Ne7 Qa6+ Kb8 Rff2 Ne1 Ne5 Re4 Kf1 Bhf4 Bd1 Nf3 Ng4 Bh2 Qd3 Ka8 Ke2 Bb8 Rf1 Rf4 Qa6+
N3Q2R/1B3r2/1p3pK1/rkB2Nnp/1bRN1R1B/1n1P2r1/3b2q1/2Rbn1N1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 h5 Kf5 b3 a4 b2 e4 c4 g4 c3 d3 f3 g6 b6 a5 f2 g5 c2 g7 Bc5 d6 Kc6+ d7 Kb5 a6 Be3 a7 Bb7 g6 Qe7 d8B Bh6 e5 Nc6 e6 Qd6 e7 Rb8 a8N Bf4 e8N Na5 Qe2 Nf6 g8R Nb3 g7 Ne4 Nd2 b1N Ba3 c1B Ndf3 Qc6 Bh4 N1d2 Bg2 f1R Bc5 Ba3 Rf8 Ng5 g8R Bb4 Ne5 Ndf3 Rc1 Bfd2 Ng7 Ne1+ Bf3 Rd8 Rc4 Rd5 Qe4 Rh7 Rh8 Rf2 Qe2 Rg2 Qe3 Rg3 Qe4 Qc7 Kf6 Qc8 Nc6 Qh3 Qe8 Qg2 Nf5 Re5 Nce7+ Bc6 Bd5 Bd7 Bb7 Rd5 Nc6 Be6 Nh6 Bg4 Nf5 Bd1 Rfg8 Nh3 Rgg4 Ng5 Rgf4 Rg7 Ke7 f6+ Kf8 Rgd7 Kg8 Rd8 Kg7 R8d7+ Kg6 Re5 Rc1 Rf7 Rh2 Qf2 Rfc4 Qf1 Rf2 Qg2 Rff4 Ka4 Be7 Ra5 Bc5 Kb5 Ncd4#
Q1BB4/4bNpK/n3n3/1q1rP2R/N1RN1kp1/4R2B/b4pN1/rrBn3b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 Ke6 Kf4 d5 h4 a5 b4 f5 e4 a4 c4 a3 h5 a2 c5 d3 b6 d2 c6 d4 c7 d3 b5 Qe8 Kg5 f4 b7 f3 b6 f2 h6 Qc6 Kg6 Bc5 h7 Ra4 Qf3 d1B Nc3 d2 Nge2 Ra5 Rh5 Ra8 Na4 Qd7 Nf4+ Ke7 e6 Kd6 e7 Bb3 e8R d1N Bh3 Na6 b8N Nh6 b7 Qb5 Ng2 Nf7 Nc6 Nd8 b8B Bb7 Nd4 Ne6 Re7 Rc8 h8N Rd8 Kh7 Bc6 Ba7 Rab8 c8B Bbd5 Rb1 a1R Bb6 Ba2 Rb4 Bcd5 Rc4 Ba3 Rh6 Ke5 Rh4 Rd7 Bd8 Ba8 Re8 Be7 Qa3 Rd5 Rh5+ Bg5 Rf8 Bb7 Rf3 Bc6 Re3 Rb6 Ne1 Kf4 e5 Be7 Nf7 Qc5 Qc3 Rbb1 Qb2 Qa5 Qb7 Qb5 Qb8 Rd7 Qb7 Bh1 Qa8 Rd5 Ng2+
bn2q2B/R4N1b/r1bp2rp/Bq3Nn1/p1B2K1R/7Q/BRq3kP/5N1N b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 c4 Kf7 b4 Kf6 e4 g5 c5 a5 c6 d3 Ke3 d2 b6 d6 b5 g4 b7 g3 e5+ Kf5 c7 Kg4 e6 g2 f5 h6 b6 Na6 b8R Rh7 f6 Kh4 b7 Re7 f7 Rd7 f8B Nc5 e7 Ra7 e8B Ne4 Ne2 Kh3 Bg7 Ng5 Qb3 d1B Bd2 Re7+ Kf4 Bf5 c8N Re6 Rg1 Bh7 Ne7 Ra6 Nf5 Nf6 Bf7 Qe8 Neg3 Nd7 Bc4 f1Q Nh1 Rg6 Bh8 Qf2 Bdc3 Qc2 Nd2 f2 Nf1 Bf3 Ra4 Be4 Ra8 Nb8 Ra7 Bf3 Ra2 a4 Rb2 Bc6 Bg8 Nd7 b8N Ba8 Nc6 Nb8 Nd8 Qb5 N1e3 f1B Ba5 Be2 Rd1 g1Q Rd4 Qe1 Nf1+ Kg2 Nf7 Bef3 Qd3 Bfd5 Ba2 Qee8 Qh3+ Kg1 Ne5 Bg2 Bgc4 Bgc6 Nf7 Qb6 Kg3 Qb5 Rh4 Rg7 Kf4 Rg6 Qc3 Kg2 Qh3+
1B1N2rb/2K2k1p/N1R4p/6q1/BnN3pQ/3b3r/RrPR1B2/1b2BnqR b - - 0 1 illegal: No proof kernel
1KR2R2/1b2pNRQ/BB2r1q1/1N2Pp2/3Np2k/q1B1b2r/b2rnn2/4B2R b - - 0 1 illegal: No proof kernel
nBb3k1/1R1pb2p/1RBrRN2/BqQB2N1/1q6/2qp1nnK/2R2P2/1r4N1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 Kf7 b4 a5 c4 e5 g5 e4 g6+ Kg7 b6 a4 c5 a3 c6 e3 f6+ Kh6 c7 d3 f7 Kg7 b5 a2 b7 h3 b6 e2 Nc3 h2 Rb1 a1N Bd2 Ra6 Qc1 Be7 f8N Bh4 Ne4 Qg5 Bg2 Qf6 Qc5 Qc3 Nf6 Nh6 Bc6 Nf5 Rb5 Rg8 Ne6+ Kh8 Rb4 Nb3 Ng5 Ng3 Re4 Nd4 Re6 Qb4 Bc3 Qb5 Ba5 Re8 Kd2 Rg8 Ke3 e1Q+ Kf4 Nf3 Kg4 Qc3 Kh3 Rf8 Bb4 Ra1 Ba5 Na6 b8R Rb1 b7 Rf7 Ra8 Qcb4 b8B Re7 Ra7 Rg7 Nh5 Kg8 Rb7 Rf7 g7 Rf6 Ne2 Rh6 Rc1 Rg6 Ng1 Qc3 Rc2 h1Q+ Kg4 Qg2 Rb2 Qf1 Rb4 Qfe1 Kh3 Qbc4 R4b6 Qb5 Ne4 Be7 Nhf6+ Kf7 g8B+ Kf8 Bf7 Qcb4 Re5 Qec3 Ng5 Kg7 Bfd5 Kf8 Ne8 Rd6 Re6 Kg8 Ra7 Bb7 c8R Nc7 Nf6+ Kg7 Re8 Bc8 Rab7 Na8 Re2 Bd8 R8e6 Be7 Rc2 Kh8 Ne8 Kg8 Nf6+
1n1rNBb1/2P3qp/R4n1p/2qk3N/2bp1r1R/4N1bB/1B5r/RNK2Q1R b - - 0 1 legal: proof: e4 c5 h4 b5 a4 f5 axb5 Kf7 exf5 Ke8 d4 cxd4 h5 Na6 h6 gxh6 Ra3 Nb8 Ra5 Nf6 Ra1 Ng8 Kd2 Kf7 b4 d5 g4 e5 f4 a5 c4 d3 b6 a4 f6 Ke6 b5 e4 f7 d4 f5+ Kd6 b7 a3 c5+ Kd5 f6 a2 g5 Ke6 c6 Bd7 b6 Be8 g6 Qd5 c7 Ba4 g7 Ke5 Nf3+ Kd6 Ne1 Qc5 Bh3 Bb5 Nc2 Bc4 Bb2 e3+ Kc1 Kd5 Qf1 Bd6 f8R e2 f7 Nf6 g8N Bg3 Re8 Ra3 f8B Rb3 Re4 e1R+ Kd2 Re2+ Kc1 Rh2 Rh4 Kc6 Ne3 d2+ Kc2 d1B+ Kc1 Nbd7 b8R Ra3 b7 Bdb3 Ng4 Kd5 Ra8 Nb8 Ra7 Ra6 Ra8 Re6 Ra6 Re4 Ne3+ Ke5 Ne7 Rf4 N7f5 Rg8 Ng7 Ke4 Be7 Rd8 Nh5 Bg8+ Bc3 Bbc4 Bb2 Nc6 b8N Ke5 Ng2 Kd5 Nd7 Nb8 Ne3+ Ke4 Nd1 Kd5 Ba3 Ne4 Bf8 Bf2 Ndf6+ Ke5 Ne8 Nf6 Nd2 Kd5 Rb1 Qe7 Nhg7 a1Q Bb2 Qaa3 Nh5 Bg3 Ra1 Qac5 Nb1 Qg7 Ne3+
1NBrb1n1/n1N4r/b6k/1pP2BB1/1q4Rb/R1p1bbB1/p5NK/1R3Q1R b - - 0 1 illegal: No proof kernel
1N2n3/NP1bbn1k/n4R1p/B1n2pp1/rN4Bq/1N3B2/BQR3r1/n1K4R b - - 0 1 illegal: No proof kernel
B2r4/5K1N/1p4Nb/B1P4r/b1n1np1Q/Rn1q3R/nNkb3p/NR1R3B b - - 0 1 illegal: No possible last move
n1R3b1/3nP2R/1q3B1B/N2r3k/pn3B1p/2KpN2n/rR1r1Q2/2bN1N1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 b4 f5 g4 Kf7 e4 Kg6 c4 h5 b6 a5 e5 d3 e6 f3 b5 f4 c5 d4 c6 a4 c7 f2 b7 f3 b6 Bb4+ Nc3 Be7 Bg2 f1R Qe2 f2 Nf3 Bb4 Ra2 Ra7 Nh2 Qd7 Rb2 Ba3 Nd1 Na6 b8B Nb4 b7 Qb5 e7 Bd7 c8N Be6 Be5 Nf6 b8B Qb6 Nd6 Nd7 Bf6 Rd8 Nc4 Bg8 Bf4 Ra5 Qf3 Rd5 Na5 Re1 Nf1 Ree5 Rh3 Re3 Qe2 Rg3 Bh1 Rg2 Re3 Rh2 Re6 h4 Rc6 Na6 Rc8 Nc7 Qe3 Na8 Qe1 Kf7 g6+ Ke8 g5 Be6 g7 Kf7 g8N Kg6 Rb1 Rf8 Bc7 Kh5 Nb2 Rg2 Nh2 f1N+ Kd1 d2 Kc2 Rd8 g6 d1N+ Kd3 Nfe3 g7 Rc5 Nh6 Nf8 g8R Nc2 Rg7 Bg8 Nf5 Nf2+ Kd2 d3 Nf1 Rdd5 Nd1 Nb4 Bb8 Nd7 Rh7+ Kg6 Bg3 Nh3+ Qe2 Rc6 Bb8 Re6 Kc3 Rf2 Bh6 Bc1 Qe3 Kh5 Bbf4 Ra2 Qf2 Ree2 Rb2 Rd2 N5e3
2nNbnr1/1Q1RpN1R/3B1B1b/8/6N1/1k2bp1P/1nrpB1B1/K3NnRq b - - 0 1 illegal: No proof kernel
N7/2p1b1q1/3kBbr1/2Np1bnR/3n2N1/1B1pK2B/rnPR1RBn/R4Q2 b - - 0 1 legal: proof: d4 e5 f4 exd4 a4 b5 axb5 g5 fxg5 h6 g6 Rh7 g7 Rh8 g4 Be7 g5 Bd6 g6 Bf8 Bg5 hxg5 Kf2 Ke7 e4 a5 h4 f5 b4 f4 b6 d3 b7 f3 b5 a4 b6 d6 h5 a3 e5 a2 h6 g4 e6 g3+ Ke3 g2 h7 f2 Rh2 Ra7 Nd2 Nd7 b8N Ba6 b7 Nc5 Ne4 Bc4 Nd7 Ra5 b8R Nf6 g8B Na4 g7 Nb2 Nb6 Qd7 Nf3 g1N Ne5 Ne2 Nc5 Nd4 Bg2 Ne4 Qf1 Ng5 Na8 d5 Ng4 Kd6 e7 Bb5 e8B Be7 Be6 Rg8 h8R Ba6 R8h5 Bc8 Rb4 Ra6 Ra4 Ra7 Rd1 a1B Rd2 Ra5 Rb4 Ra2 Ra4 Rh8 g8B Rh6 Bh7 Rg6 Ra3 Bd8 Bhg8 Qg7 Ba4 Be7 Bb3 Bd7 Nf6 Bc8 Beh3 Bf5 Be6 Na4 Qd1 Bc3 Ng4 f1N+ Kf4 Nb2 Rf2 Nd2 Qf1 N2f3 Ke3 Ba5 Rh1 Bc3 Rd2 Nh2 Ra4 Nc6 Rf4 Bcf6 Rff2 Nd4 Qe2 Nc6 Ra1 Nd4 Qf1
k1rr2b1/P1RR1r1n/4rbb1/NpKBBB2/2Q2Np1/2q3N1/R1p2n1N/2R5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 a4 g5 h4 c5 d4 Kc7 h6 b5 a5 Kb7 a6+ Ka7 h7 f3 Ke3 f2 e5 b3 h5 b2 d6 g4 e6 c4 h6 c3 d7 c2 d5 f4+ Kd4 f3 e7 Qa5 d8N Bd7 e8B Bb4 d6 Bc8 d7 Be7 Ne2 Qc7 Ra2 Qb7 Qd3 Qc6 Nb7 Nf6 d8R Ne4 Bf7 Nd6 Na5 Be6 Qc4 Nd7 Ng3 Ne4 Bd3 f1B Nd2 b1R Bb2 f2 Nf3 Ndf6 Nh2 Rc8 Rd7+ Ka8 a7 Rhd8 h8R Re1 h7 Bf5 Rf8 Bg6 h8N Nh7 Bd5 Be2 Bc3 f1R Rf7 Nf2 Bf5 Bf3 Rc7 Re6 Rg1 Bh4 Rfd7 Be4 Bb2 Bf7 Ng6 Bg8 Nf4 Bg5 Kc3 Bf6+ Kb4 Bd3 Bg2 Qf3 Kc5 Be4 Be5 Qc3 Rg7 Rfd1 Bf3 R1d7 Rc1 Rf7 Be2 Rff8 Rd7 Rf7 Bd3 Ree8 Be6 Bg6 Bdf5 Ree7 Nc6 Ree8 Bd5 Re6 Na5+
q1R2n2/N1b3KN/nnBkp2n/1P4p1/2B1p1RB/2Q2b2/3NNr1R/1r3q1R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Ke2 d5 h4 Kd7 c4 a5 f4 a4 b4 d3+ Ke3 a3 Kd4 g6 Ke5 d4 f5 d2 f6 d3 f7 a2 b6 e6 b5 Ra7 c5 Ne7 Kf6 Bb7 c6+ Kd6 h6 Na6 c7 Rg8 c8B Ra8 h7 Bc6 h8R Be8 Qe1 d1N h5 d2 b7 Nb2 b8N d1N h6 Na4 h7 Ne3 Nc6 N3f5 Nd2 Nb6 Bd7 Nh6 Ne2 g5 Na7 Qb8 Bc6 Ng6 Rh4 Qc8 Rg4 Qb7 Rb1 a1Q+ Bb2 Rc8 Bd4 Qa8 Rb2 Rg7 Bf2 Qb1 Bh4 Qd1 Bd7 Rc1 Bc6 Rb1 Rg8 Qc1 h8R Qd1 Nf4 Qf3 Bc4 Qf1 Rh7 Nf5 Rh5 Nh6 Qg3 Rh7 Qc3 Rh8 Ra2 Be7+ Kg7 Bd8 f8N Bc7 Nh7 Nf8 Ne2 Bg6 Rf4 Bf5 Rc2 Bg4 Rc1 Bf3 Rg4 Nfd7 Rc8 Rf8 Bg3+ Rf4 Rh2 Nf8 Rd1 Bg2 Bh4 Rf2 Rc1 Bf3 Re1 Qh3 Reg1 Qf1 Rgh1
bKR5/2NN1B1b/BbPk1b2/p1RQ1nn1/2Rqqp2/N1Brp1N1/6r1/5B2 b - - 0 1 illegal: No possible last move
r1R1BB1q/2QB1rkp/1Nbb4/4n1K1/1n2N1p1/q1B1NNPr/R6p/4Rr2 b - - 0 1 illegal: No proof kernel
1R1nB2r/3B1b1p/1PN5/N2R4/1rBr1b2/k1KNBQq1/1pp3R1/N2q2rn b - - 0 1 illegal: No proof kernel
n1K1b2N/rB1pqB2/pRn2Pp1/1R1q4/1b2k3/2n1NB1n/6Q1/B1N2NRr b - - 0 1 illegal: No possible last move, all moves rejected
2RBR1Qr/2P4n/2prp3/1b5K/Bn6/Nq2R2b/1p1R2qN/b1bBNBk1 b - - 0 1 illegal: No proof kernel
1N1n2b1/qp5p/1b1Nb2K/1PN1n1N1/3BqRpk/2BR2n1/2Q1r2q/1B1RR3 b - - 0 1 illegal: No proof kernel
6RR/1Br2bB1/N1q1Br2/R1rp1rrq/1b1PN2N/3k3p/n5Rp/BKQ5 b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Nf6 b6 Bh6 b5 Na6 c5 Ng8 c6 Bf8 Ra3 Nc5 Ra1 Nb7 cxb7 Qf6 Na3 Qe7 Nb1 Qd8 b8R Ke7 g4 Kf6 e4 Ke5 g5 Kd4 d3 h5 Kd2 a5 Kc2 c5 b7 f5 g6 d5 g7 f3 b6 f2 e5 c4 e6 h3 e7 h4 e8R f4 Bd2 h2 Qc1 c3 Re1 h3 Re2 a4 Qe1 a3 Re5 a2 Bg2 f1R Re2 f3 Qc1 f2 Bh6 Qc7 Nd2 Ne7 g8B Be6 Ne4 Rh7 Bg7+ Qe5 Rd8 Ra5 b8N Nc6 b7 Bf7 Na6 Bb4 b8B Rc5 Bf3 Rh5 Bg4 Rg5 Bc8 Qf6 Bb7 Qe5 Kb3 c2 Kb2 Qf6 Rd2 Ke3+ Be5 Qf5 Qb1 c1R Nf3 Qg6 Rg1 Qh5 Nh4 R1c3 Qc1 R3c4 Rb1 a1Q+ Kb3 Qa5 Ba1 Qb6 d4 Rc2 Re2+ Kd3 Rf8 R2c4 Ka2 Ba5 Rg2 Be8 Ng3 Nb4+ Kb2 Rb5 Bc8 Rc7 Bb7 Rbc5 Re6 Qd6 Ne4 Qc6 Rh6 Na2 Be6 Bf7 Rg8 Bc3+ Ka3 Bd2 Rb5 Bb4+ Kb2 Rd1 Qf4 f1R Qc1 Rf6 Ra5 Rdf1 Rhh8 R1f5 Kb1
R2b4/p1n2n2/R1Rb2N1/Qq1b4/NpBKB1NB/4N1p1/bP2B2r/q3b2k b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 dxc5 h5 Bg2 hxg4 Qd2 b4 Bf1 Na6 Qd6 Rb8 Qd1 Rb5 axb5 Qa5 Be3 Qb6 Bc1 Qd8 Ke2 Kf7 Ke3 Kf6 h4 Ke5 f4+ Kf5 c4 g5 h5 d5 h6 e5 c6 g3 c7 g2 h7 g4 c5 g3 c6 Qh4 b6 Bh6 b7 Nb8 Nd2 Na6 b8R Qh5 Ne2 Kg4 Nc4 Bb7 Qa4 Bf8 f5 Bd6 c8B Nc7 Ra8 Nh6 Qa5 Nf7 f6+ Qf5 Rg1 Kh3 Nc3 Kh2 Be2 Qh5 Rf1 g1B+ Rf2+ Kh1 Be6 Qf5 Na4 d4+ Kd2 d3 Ke3 Rf8 h8N d2 Ng6 d1B Bd5 Rh8 Ra3 Nb5 c7 Rh2 c8B Bb3 Bce6 Ba2 Rc3 Nc7 Rc2 Nh6 f7 Bc6 f8N Nf7 Nd7 Qh5 Na3 Qf5 Bdc4 Bd5 Nf6 Qh5 Bh3 Qf5 Ng4 Qd7 Kd2 e3+ Kd3 e4+ Kd4 Qb5 Rf6 Bf2 Bhf1 Bg1 Bed3 e2+ Be3 e1Q Bfe2 Qf1 Rc3 Qa1 Nc2 Bf4 Ra6 Bd6 Bf2 e3 Be4+ Rg2 Be1 Bf2 Bd2 Bg1 B2f3 e2+ Nce3 e1B Rc2 Be7 Bfe2 Bd8 Bc3 Bgf2 Kd3 Bg1 Bf6 Bgf2 Bh4 Bg1 Nf5 Bc5 Nfe3 Bf8 Kd4 Bd6 Bf5 Rh2 Bfd3 Bg2 Be4 Bf3 Bcd5 Bg2 Rcc6 Bf3 Bdc4 Bg2 Bb1 Bd5 Be4+
n4K1N/3pn1n1/N1BR3Q/4nB1p/2RPpbrR/Nr2n1B1/2br2N1/5Bk1 b - - 0 1 legal: proof: e4 f5 exf5 a5 h4 b5 c4 g5 b4 gxh4 Nf3 c6 Ng1 Qb6 Qe2 axb4 Qd1 b3 Nf3 b4 Ng1 Qb5 cxb5 Ba6 Rh2 Bb7 Rh1 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 g4 h3 d4+ Kh4 f4 Kg3 a4 Kf2 b6 c5 b7 b2 g5 h2 a5 b3 f6 c4 f7 e6 g6 c3 a6 c2 a7 Rh6 f5 Na6 b8N Nc7 f6 Bb7 g7 Be4 Ra6 Rg6 Bf4 c1N Ne2 Rg4 Qd2 Bg6 Rd6 Ne7 g8B Bh6 f8R Bd3 Na3 b1R f7 b2 Kf6 e5 Rc8 e4 f8N Bg5+ Kf7 Bh6 Rg1 h1N Nc2 Ng3 Bh7 Ngf5 Rh1 Ng7 Rh4 Bg5 Be5 Be3 Nf4+ Kg1 Ng2 Bg5 Na6 Rb8 a8B Rb3 Nce3 Bc2 Bg6 Nd3 Bg3 Rd1 Bf5 b1N Ng6 Ne5+ Kf8 Na3 Nh8 Nac4 Bb7 Na8 Qc1 Ncb6 Nc4 Nbd5 Na3 Bh6 Qf4 Rd2 Rc4 Ne3 Bc6 Bg5 Bg6 Bh6 Qf6 Bg5 Bf5 Bf4 Qh6
2Q1nN1b/2p1b3/2BR2rk/1nrpB3/NK1R4/r2b1np1/4BbP1/1R1RN2B b - - 0 1 illegal: Other
B3B1kn/pb1pb1N1/Nn5b/3P1bn1/4BRp1/6Rq/2RBN3/QrN1Kn2 b - - 0 1 legal: proof: b4 c5 a4 e5 c4 b5 g4 bxa4 f4 h5 fxe5 hxg4 b5 Rh3 b6 Na6 Ba3 Rb3 Bc1 Rb5 cxb5 Rb8 Kf2 Rb7 Ke1 Rc7 Ra3 Rc6 Ra2 Rh6 Ra1 Rh8 h4 g5 d4 f5 e4 Kf7 h5 g3 e6+ Kg7 e7 a3 e8B g4 b7 f4 b8N c4 e5 a2 e6 g2 e7 f3 b6 c3 b7 c2 Rh3 Nh6 Ne2 g1N Bg2 Kg8 Bg6 Nb4 e8B Nf7 h6 Be7 Na6 Nd5 b8N Bb7 Rg3 Nh3 Nc6 Nb6 Nd2 Nhg5 Nb3 Rh7 Be4 Nh8 Bf4 c1B Bd2 Qc8 Rb1 a1N Nd8 Qc3 Ne6 Qd3 Rb2 f2+ Kf1 Rf7 Ng7 Nc2 Ra2 Rf5 Ra4 Rb5 Bh1 Bca3 Nc1 Rb1 Rc4 Bad6 Rc6 Bc5 Rf6 Bf8 Rf4 Bce7 Qe1 Bc8 Ba8 Bb7 d5 Qc3 Be4 Qd3 Kg2 f1B+ Kf2 Ne3 Qd1 Bg2 Ke1 Nf1 Qa4 Bf3 Qa1 Qb3 Bc2 Be4 Bd3 Bf5 Bc2 Bc5 Be4 Bfe7 h7+ Kf8 Rg1 Qh3 Rg3 Be3 Bh5 Ng6 h8R+ Kf7 Rh7 Kg8 Rh6 Nh8 Rc6 Bf8 Bg6 Bec5 Be8 Bce7 Ne6 Bg7 Rc2 Bh6 Ng7
2R1R1r1/Bb1B2b1/2b3NR/np2N3/rPnb2pQ/R1b1N3/N2pK2b/k6B b - - 0 1 legal: proof: e4 b5 d4 c5 g4 cxd4 a4 f5 exf5 h5 a5 Qb6 axb6 hxg4 c4 Kf7 b4 Kf6 f4 g5 h4 e5 b7 a5 h5 d5 c5 g3 c6 g4 h6 e4 h7 e3 c7 e2 Bd2 g2 Rh5 a4 Nf3 g1B Nc3 a3 Qb1 a2 Nh2 d3 Bg2 d4 Be3 Bg7 Bh1 Ra4 Nf1 Ne7 Rh6+ Ng6 Qd1 Nc6 b8R Rd8 h8N Bh2 Nf7 Na5 Ne5 Bb7 c8B Rg8 Bd7 d2+ Kf2 e1B+ Ke2 Bf2 Qe1 Bfg1 Rc8 d1B+ Kd2 d3 Ba7 Bc5 Ne3 Bdf3 Qf2 Bg2 Ke1 d2+ Ke2 Bd4 Qg3 Ke7 f6+ Kd6 f7 Bge4 f8R Bec6 Rd1 a1B f5 Bb2 f6 Ba1 Na2 Bac3 Be8 Ke6 f7 Kd6 Ra1 Ke6 Ng2 Kd5 Bd7 Ke4 Rfe8 Kd5 Nd3 Kc4 f8N Kb3 Qh4 Ne5 Ng6 Nec4 Nde5 Kb2 Ne3 Bf6 Nc1 Bg7 Ra3 Kb1 Na2 Kb2 Nf7 Ka1 Nfe5
N1RK3B/1rN1B1N1/1br2r2/1Rp2Bpb/R2BNP2/2bknp2/1q1Q3p/7n b - - 0 1 illegal: No proof kernel
1BNQN3/2p1R3/1Nrn3R/R1N3b1/1Br1p1q1/p1p3P1/B1r2nBK/bk1b4 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 d4 Kd7 f4 Kd6 Kf2 Kd5 Kg3 a5 b4 h5 f5 e5 f6 e3 f7 Ke4 b6 h4+ Kh2 c3 g6 h3 b5 a4 d5 e2 g7 e1B d6 Nd7 g3 Qf6 b7 Rh7 b8R Qf4 b6 Rh8 b7 Ra6 Na3 Rb6 Nf3 Rc6 Nb5 Nc5 d7 Qg4 d8N Nf6 g8B Bd2 Ne1 Ne8 Na7 Nd6 Nd3 Bg5 Ba3 Rh4 Bb4 a3 Ne6 Bfh6 f8N Bc1 Rb1 Bhg5 Nd7 Bb2 Nb6 Ba1 Bg2+ Ke3 Ra8 Nce4 b8B Nf2 Ng7 Bd7 Qg1 Kd2 Ne8 Kc2 Re1 Be6 Qf1 Bb3 Nc5 Kb2 Nac8 Bd1 Ra4 Kb1 Bb3 e4 Ra5 Rh5 Re3 Rh6 Rf3 Re6 Rf7 Re5 Nca4 Rec5 Re7 Rc4 Nc5 Nd3 Qf8 Nf2 Kg1 h2+ Kf1 Qh3 Qg7 Nb7 Qd4 Qg4 Bh3 Nd3 Qd8 Nd6 Kg2 Nf2 Rg1 h1R Rf1 Rh2+ Kg1 Nd3 Rf6 Nf2 Rh6 Nh1 Bf1 Rf2 Bg2 Rc2 Kh2 Nf2 Ba2+
1K4k1/1bQpBR1p/3Np2b/B2r2B1/3r1Nr1/P1r2q1p/1Nn1R2R/2NB2n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 Kd2 Kf7 Kd3 b5 Ke4 e6 Ke5 b3 g4 b4 c4 h3 f4 b2 a3 b3 f6 Qa5 g5 Qb5 f5 Qb4 c6 Qb7 g6+ Ke8 c7 Ra5+ c5 Nh6 g7 Kf7 g8R Qc6 Qc2 Qf3 Ra2 Qa8 Be2 Qc6 Bd1 Qa4 Nd2 b1R Nc4 b2 Bg5 Ba6 c8N Be7 Rh2 Qb4 Rg7+ Kf8 f7 Rc1 N8d6 b1R Ne2 Bd8 Nb2 Ra4 c6 Bb7 c7 Qg4 c8N Na6 Qc7 Rg8 Nb6 Rd4 Nd5 Rc3 Ndf4 Nb4 Nc1 Ra1 Nbc4 Rb1 Rae2 Nc2 Nb2 Qg2 Rg6 Qf3 Rf6 Kg7 f8B+ Kh8 Rf7 Be7 f6 Nf5 Ne8 Ng3 Nd6 Bd8 Be7 Rg7 Nc8 Kg8 Bb4 Be7 Ba5 Bf8 Nd6 Rg6 Re7 Bh6 f7+ Kg7 f8B+ Kg8 Rf7 Ra1 Re1 Ne2 Bfe7 Ng1 Ree2 Ra2 Ndc4 Re4+ Kd6 Rd4+ Kc5 Rd5+ Kb6 Rg7 Ka7 Ra1 Bh4 Rg4 Bhg5 Rd4 Nd6 Rb1 Na4 Rb5 Nb2 Rbd5 Kb8
3r2nR/1p2NNR1/1N1rbb1p/r2Bq1P1/4p1p1/r4B1k/1R4BB/nQ3K1R b - - 0 1 illegal: No possible last move
4NB1B/P1rppR2/3bR2n/2p2b2/B1qk2Q1/1p2R1Np/3bR1r1/1BNK1n2 b - - 0 1 illegal: No possible last move
R1NN2n1/3rr2q/4pb1p/3Pq1pK/N1Rpb1Q1/1B4B1/1pn3N1/2k1RR1B b - - 0 1 illegal: No possible last move, all moves rejected
3BNbnR/R3p1r1/5p1P/2NQ3p/N2NBK2/B3pb1k/1n1p1q2/1R1B1qr1 b - - 0 1 illegal: No proof kernel
2RnrB2/r1N5/b1n3Bq/1p6/1pB2R1q/3Kp2N/NPBQpRpR/5q1k b - - 0 1 illegal: No possible last move
1B1n4/Q2B1p2/1nr3n1/Bp1p2K1/4NrR1/1qBpp1b1/1P1NR3/1kqN1NR1 b - - 0 1 illegal: No proof kernel
3R2K1/1rr2N1R/Q3kpBp/r2bq1br/1BRnp3/Np2pP2/B6B/6NN b - - 0 1 legal: proof: e4 a5 c4 d5 h4 dxe4 b4 b5 Ba3 g5 hxg5 Nc6 Bc1 Na7 Na3 axb4 Nb1 b3 Qe2 b4 Qd1 Nb5 cxb5 Ra4 Qc2 Ra6 Qd1 Ra8 Ke2 Kd7 Ke3 e5 a4 c5 g4 f6 d4 c4 f3 b2 g6 c3 b6 c2 b7 Be7 b8B Ra7 d5 Qf8 d6 Qd8 g7 Ba6 a5 Be2 a6 Qa5 g5 Qd8 g6 Qc8 Qd3 Rc7 a7 Nh6 g8B Bf8 a8R Rc6 g7 Rc5 Qa6 Rc7 Ra4 Qd8 Bd2 c1R Na3 b1R Ba2 b3 g8N Re1 Ne7 Rb7 Nf5 Qe8 Bb4 Rec1 Ng3 Bc4 Bd3 Ke6 d7+ Bd6 Rh3 Ra1 Nh1 Bd5 Rh4 Rcc7 d8N+ Ke7 Nf7 Ke6 Ra5 Qe7 Rc5 Qe8 Rc4 Nf5+ Ke2 Nd4+ Ke3 Rc6 Rh5 Bf8 B8d6 Rcc7 Rd8 Qe7 Kf2 e3+ Kg3 Bh6 Kg4 Qe8 Bg6 e4 Rh2 Bg5 Kh5 Bh4 Kh6 Bg5+ Kg7 Qe7 Bf4+ Qd6 Qa7 Qe5 Rh4 Rf8 Bh2 h6 Rg4 Re8 Rg3 Ree7 Kg8 Rc5 Qa5 Rec7 Qa6+ Qd6 Qa7 Bf4 Bf5+ Ke7 Nb5 Be6 Bb1 Ra5 Na3 Re5 Qa6 Bd5 Bh7 Ke6 Ba2 Rh5 Rg7 Bg5 Bg6 Ne2 Rh7 Nd4 Qa7 Qe5 Qa6+
2K3RR/N3p1pQ/1rp1P3/R1nnpB2/B1B2b2/k2Nb1pR/1Bb3b1/2Nr4 b - - 0 1 illegal: No proof kernel forced: wxDB
4n1q1/1N1B4/NKNb4/RNB1B1pb/p1kp2pp/p7/1r1r2PR/1RQn1R2 b - - 0 1 illegal: No possible last move, all moves rejected
1q1kr2r/1BR1q3/1P1q1npq/QK5B/4bQ1n/2R5/1N1Q2R1/1N3QR1 b - - 0 1 legal: proof: e4 h5 c4 c5 a4 b5 axb5 d5 g4 f5 exf5 a5 gxh5 a4 d4 e6 cxd5 c4 b4 Bxb4+ Bd2 Bc5 dxc5 a3 Ba5 Qe7 Bd8 Qxd8 Ke2 a2 f4 c3 Kd3 g6 Kc4 c2 h4 e5 f6 e4 d6 e3 h6 e2 h7 e1Q h5 Qd7 f7+ Kd8 f8Q+ Qee8 c6 Bb7 c7+ Kc8 f5 Nf6 h6 Na6 Ne2 c1Q+ Nec3 Qb2 Qd2 Ng4 f6 Nh2 f7 Nf3 Nd1 Qa3 Rh2 Qdd8 Rg2 Be4 d7+ Kb7 c8B+ Kc7 Be2 Nh2 Bh5 Qee7 Nb2 Nf1 Bb7 Rg8 h8R Ng3 h7 Qb8 d8R Nb4 Rd3 Qd6 Rc3 Nf5 b6+ Kd7 Kb5 Nd5 Qfh6 Kd8 Qhf4 Re8 f8Q Nh4 Rg8 Qe7 h8Q Qad6 Qhe5 Nf6 Qeg5 Ra7 Rg7 Ra8 Qf7 Rh8 Qc4 Re8 Qcf1 Rh8 Na3 Re8 Rac1 a1Q Nb1 Qa2 Qge5 Qg8 Qc5 Qgf8 Qb4 Qh8 Qa5 Qh6 Rf7 Qe6 Rfc7 Qe7 Rd1 Rh8 Bf3 Qa7 Re1 Ke8 Qh1 Rc8 Qg1 Qb8 Bh5 Rd8 Qgf2 Rc8 Reg1 Rd8 Rc8 Kd7 Q2f3 Rde8 R8c7+ Kd8 Qf1
2kN2K1/RqB1Nn2/3q1r2/qqP3QQ/r4RN1/3B3r/r4b1Q/2N2Q1b b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 h5 exf5 b5 g4 c5 gxh5 Nc6 d4 cxd4 a6 Nb4 Bd2 Nxa2 Bh6 Nc1 Bxc1 b4 Kd2 g5 Kd3 e5 Ke4 b3 Kd5 b2 h4 d3 f4 d6 c4 Kd7 a7 g4 c5 e4 f6 g3 h6 d2 f7 e3 f5 g2 h5 e2 f6 e1Q h7 Qc7 h6 Qe8 Nh3 g1Q Nc3 b1Q Na2 Qb4 Nf2 Qf4 Ng4 Be7 f8N+ Kd8 f7 Bh4 Bd3 Qa5 Qf1 d1R Ng6 Bf2 f8N Qeb5 Ne7 Rd2 Rh4 Bb7+ Ke6 d5 Bb2 d4 Nc1 Qd6+ Kf7 Qh1 Ne6+ Kd7 Nd8 Bg2 Bc3 Ra2 Bd2 Bb7 Bf4 Qhc6 Kg7 Qcb6 Bg3 Bh1 Bh2 Qb7 Bg3 Rc8 a8Q Rb8 Qa6 Ra8 Kf8 Kc7 Qc6+ Kb8 Qd5 Ra7 Qg5 Ra8 Be4 d3 Bf5 d2 Bd3 d1R Kg7 Nf6 Bh2 Rf8 h8Q Ne4 h7 Rf6 Kg8 Re1 Be5 Re3 Bf4 Rh3 Bh2 Rf5 Qb2 Kc7 h8Q Rf6 Qhh5 Kd7 Ne3 Ra6 Rf4 Ra7 Ng4 Ra4 Qgg6 Ng5 Bg3 Nf7 Qgg5 Ra2 Qbe2 Qc3 Bh2 R7a4 Qc2 Qca5 Bg3 Be1 Qh2 Bf2 Qd1 Qe5 Nd5 Qac7 Bc4 Rb4 Qf1 Rc2 Bd3 Kc8 Ra7 Qca5 Re4 Ra4 Rc4 Qd4 Bc7 Rca2 Rb4 Qe5 Rf4 Qd6 Ne7+
6b1/kq2BB1N/6qP/rR5B/p2nQ1NN/3RnnQN/B7/Kb1b3n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 b4 hxg4 Bb2 a5 Ba3 a4 Bc1 Ra5 bxa5 Rh6 Nh3 Rh4 Ng1 Rh8 a6 Bc5 a7 Nh6 a8B Ba7 b6 Ng8 bxa7 Bb7 Ra3 Ba6 Ra1 Bc8 h4 Kd7 d4 g5 Kd2 c5 Kc3 Kc7 Kb2 Kb6 e4 f5 e5 f3 h5 g3 h6 g4 e6 c4 e7 f4 e8N g2 d6 g3 d7 f2 d5 f3 d6 Nf6 Qe1 Ng4 Ra3 c3+ Ka1 c2 Nh3 g1Q Bg5 c1N Be7 g2 Rd3 Nc6 Nd2 Ne2 Nf6 Ne3 Ng4 Qc7 d8N Ng3 d7 Nd4 Be2 f1B Nf7 f2 d8Q Be6 Qe8 Qb7 Nfg5 Bg8 Nh7 Ka6 Bd1 Be2 Nf3 f1B Nh4 Kb6 Bb3 Bd1 Bf7 Ka6 Rh2 Nh1 Qg3 Bfe2 Ba2 Bf3 Bf7 Bd5 Bh5 Ba2 Bf7 Bb1 Bh5 Qb3 Bd5 Qb7 a8B Kb6 Bdf7 Ka7 Nhf6 Rh7 Ba2 Rg7 Nh7 Rg5 Qg6 Ra5 Qe4 Qe1 Baf7 g1N Rb2 Ngf3 Rb5 Qb4 Ba2 Qd6 Baf7 Qg6 Ba2 Qc8 B8d5 Qb7 Bf7
b3bq2/1QbnQB1p/Qn2bR2/5nK1/B2nk1N1/RN4PR/8/QR3r2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 b5 c4 f5 exf5 d5 cxd5 b4 a4 Nh6 a6 Ng8 a5 Ra7 Bb2 Rb7 Be5 Rb6 Bd6 Qxd6 axb6 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 c5 d4 e6 f6 c4 b7 h3 g3 h2 a7 c3 a8B b3 f7 c2 Bb5 c1N Ra3 b2 Nh3 Na6 b8R Nf6 Ba4 e5+ Kg5 e4 f4 e3 f5 e2 Nf2 e1N Nd2 b1B Ng4 Bd3 Rb1 Ne2 Nb3 Bg7 f8R Nd7+ f6 Bg6 B8c6 Nb6 Be8 Nc2 Bf7 Bh5 Qd3 Nb8 Qa6 Be6 Qb7 N8d7 Qa6 Kc7 d6+ Kb8 d5 Ncd4 Bg8 Nf5 Bf7 Nc5 d7 Kc7 Qb7+ Kd6 Qa6 Qb8 d8Q+ Nd7 Qdc8 Ned4 Qcb7 Qe8 Ne3 Ke5 Ng4+ Ke4 d6+ Nd5 Rg8 Bf8 Rg6 Be7 Rh6 Qf8 Rhf1 Bg6 Rh3 h1B Rf2 Bd8 Rf3 Ne5 d7 Bc7 d8Q Nd7 Qe7 Bh5 Bg8 Be8 f7 Nh4 Rf6 Nhf5 Qbb4 Bg2 Qc3 N5b6 Qa1 Bf1 Qb4 Bfc4 Qe7 Bd5 Qb4 Ba8 Qbb5 Qe7 f8Q Qf7 Qe7 Qf8 Bf7 Rg8+ Kh5 Rg6 Qbb4 Rh6+ Kg5 Rh4 Ne5 Rf4 Ng4 Rf1 Qbb5 Nc4 Qb8 Ncb6 Qbb7+
2bQQ2k/2qnb1q1/B4N2/3bq1Rp/q1B2Q2/Q1Br3q/N3PB2/1K2R3 b - - 0 1 legal: proof: b4 a5 h4 b5 f4 d5 a4 e5 axb5 exf4 c4 g5 cxd5 gxh4 b6 Qd6 b5 Na6 bxa6 Rb8 Nc3 Rb7 axb7 Qd7 Nb1 Qd8 b8Q h5 g4 f5 d4 Kf7 Kd2 Kg7 Kc2 c5 b7 f3 d6 a4 d5 h3 g5 f4 g6 h2 d7 a3 d6 f2 Bb2+ Nf6 Qc1 c4 Bc3 f3 Bg2 f1B Nh3 a2 Rg1 h1Q Nf2 Qe8 d8Q Bf5+ Ne4 f2 d7 Qe6 Qe8 Qh3 d8Q Qe5 Qa3 Be7 Qbd6 Bc8 b8B Rf8 Ba7 Nd7 Nf6 Kh8 Bb7 Bg2 Ba6 f1Q Bf2 Bd5 Ng8 Rf3 Rg5 Rd3 Kb2 Qg1 g7+ Kh7 Qf6 Qd1 Qf4 Qa4 Bcd4 c3+ Kc1 c2 Nc3 Ba8 Rb1 a1Q Na2 Qc3 Ra1 Qcc7 Bc3 Bd5 Kb2 Qa7 Rb1 c1Q+ Ka1 Qce3 Re1 Qeg3 Kb1 Qgg2 Nh6 Qac7 g8B+ Kh8 Bf7+ Nf8 Ng8 Nd7 Be6 Bc6 Bec4 Bd5 Rf5 Qg6 Rg5 Qgg7 Nf6+
1q4R1/1Q1N2KQ/3B4/1r5r/PbBN1N1r/1n1B1R2/1ppBN1b1/nr4k1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 c5 g4 d5 gxh5 a4 bxc5 dxc4 d4 c3 Qxa4+ Rxa4 d5 Ra8 Ke2 Kd7 Ke3 e5 Ke4 b5 h4 g5 a4 b4 f4 g4 c6+ Kd6 h6 Kc5 f6 b3 f5 c2 h7 g3 f7 g2 f6 b2 h5 Qc7 d6 Ra7 h6 Ra8 d7 Qa5 Kf5 Kd4 Kg6 e4 d8N e3 c7 e2 Rh3 e1R Ne2+ Ke4 Nc6 Qa7 Nf4 Nd7 Rf3 Bb4 f8N Ne7+ Kg7 Qb8 f7 Ra7 Bd2 Rb7 Bc4 Rb5 Nd4 Bb7 c8B Nc5 Nd7 Nb3 f8B Nc6 Bd6 Nca5 Ra3 Bc6 Ba6 g1R+ Rg3 Na1 Rf3 Rh1 Rg2 Rd8 h8Q Rhh5 h7 N5b3 Qf8 Reh1 h8Q R1h4 Qf7 Re8 Rg6 Ree5 Qh7 Reg5 Nb6 Rg1 Qb7 Rc1 Nd7 Bd5 Na3 Rb1 Nde2 Bc6 Rc3 Bd5 Bd3+ Kf3 Rg2 Ra5 Bac4 Rb5 Rg3+ Kf2 Rg4 Rb6 Nb5 Bg2 Nbd4 Kf1 Kf6 Rbb5 Rg8 Kf2 Kg7 Kf1 Nc1+ Kg1 Nce2+ Kh1 Bf5 Kh2 Rf3 Kh1 Bfd3 Kh2 Ng3 Kg1 Nge2+
3r3N/1n1QB3/nB1Rqk1p/5qRp/1qPqB3/2Nb2K1/QB1Q1Q2/n7 b - - 0 1 legal: proof: b4 a5 e4 b5 a4 f5 exf5 c5 axb5 g6 h4 Qb6 d4 cxd4 h5 Qd6 b6 gxh5 b7 Bh6 b5 Bd2+ Kxd2 Qb6 Ke1 Qd8 b6 Ra6 Bxa6 Qc7 Bf1 Qd8 g4 Kf7 f4 d5 Kf2 e5 g5 a4 g6+ Ke7 f6+ Ke6 f5+ Kd7 f7 Ke7 f8B+ Kf6 g7 e4 Bd3 a3 Kg3 a2 Nc3 e3 Nge2 h6 Rg1 Qe7 Nf4 e2 Ng6 Qb4 Be4 d3 Qd2 d4 Bb2 Na6 b8Q Ne7 g8Q Nc6 b7 Na5 Rad1 a1N Qa7 Be6 b8Q Nb7 Bc5 Bc4 Qbf4 e1Q+ Qff2 Qf1 Qc8 Rd8 Bb6 Qe1 Qd7 Qe2 Qde1 d2 Nh8 d3 Qa8 Nb8 Qa2 Na6 Bh1 Qe6 Be4 Ke5 f6 Qf5 f7 Kf6 Rc1 d1Q f8B Qe2 Rd1 Bb5 Qd2 Qg4+ Kh2 Qg8 Rg5 Qe6 Qde3 d2 Kg3 Ba4 Rb1 d1Q Qed2 Bb5 Rc1 Qh1 Rd1 Qd4 Qde1 Qb4 Rd6 Bd3 Qed2 Qe1 Nb5+ Qd4 c4 Qb1 Nc3 Qe1 Ba3 Qb1 Bc1 Qb5 Bb2 Qb4 Be7+
N1Qb4/5R2/n1N3PR/2N2nBp/1p1q1rk1/2Q5/B2b1pBK/3BN1rn b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 d5 c4 b6 cxd5 Qd6 f4 exf4 a6 Bh3 Nxh3 Qf6 Ng1 Qd8 a3 Bxa3 Bb2 Bd6 Bc1 Bf8 Kf2 Ke7 d4 c5 e4 f5 g4 b5 Kg2 h6 e5 c4 g6 f3+ Kh2 c3 g5 b4 a7 f2 g7 c2 g6 f4 e6 Kf6 e7 Kg5 e8B Be7 d6 Nf6 g8B Qc7 d5 Nh5 d7 Qc3 d8Q Nc6 d6 Kh4 d7 f3 Bg5+ Kg4 Qe1 c1B Ba2 Ng3 Bg2 Rf8 Qc8 Nb8 d8N+ Nf5 Nc6 Qd4 Nc3 Na6 Na4 Bd8 Qc3 Bd2 Nc5 Rf7 Re1 Rf6 Re7 h5 Rh7 Rf7 Rh6 Rf8 Qe6 Rc8 a8N Rc7 Qc8 Re7 Nh3 Re1 Nf4 Rg1 Nfd3 Rd1 Be3 f1N+ Kg1 Ng3+ Kh2 Ra1 Rf1 Nh1 Rf2 Rg1 Bef7 Re8 Bfb3 Re4 Re2 f2 Bg5 Qg7 Ne1 Rf4 Re7 Qh8 Rf7 Qd4 Bd1+
1k2B3/r2rbb1Q/bPQ4N/1Q5N/4Kb2/b3n2B/pp2B1p1/3BRR1Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 d5 cxd5 e5 fxe5 b4 Bh3 Qd6 Bf1 Qd7 b3 a5 Ba3 Ra6 Bb2 Rc6 Bd4 Rc1 Bf2 Qb5 Bg3 Nd7 Bf4 Nb6 axb5 a4 Bg5 a3 Bh6 Na4 bxa4 Be7 Bg5 Bc5 Be7 Bd6 Bf8 Bxf8 Kf2 Kd7 Ke3 c5 h4 Kc7 d4 g5 a5 f5 h5 g3 b6+ Kb7 a6+ Kb8 h6 g4 a7+ Kb7 a8B+ Kb8 h7 b3 d6 f4+ Ke4 a2 e6 b2 d7 f3 d8Q c4 e7 f2 e8B g2 d5 g3 d6 c3 d7 c2 Nd2 Ba3 Bh5 Ne7 Qe8 Nc6 d8Q Ne7 Qd5 Rg8 h8Q Bd6 Qdb5 Bf4 Ndf3 Bd2 Nh3 g1B Qec6 Bb7 Nd4 Rd8 Qh7 Ba6 Nf5 Nd5 Nh6 Bb4 Nf4 Ba3 Bh3 f1B e3 g2 Be2 Bh2 Nh5 Bhd6 Bb7 Rd7 Bc8 Rg7 Bcg4 Rd7 Qe1 Bf8 Bd1 Be2 Rf1 Bc4 Bge2 Bae7 Rf4 Ba3 Qh1 Bfe7 Rf1 Ra7 Kf3 Rd7 e4 Ne3 e5 Bf7 e6 Ra7 Ke4 Rb1 Rf3 c1B Rf1 Bd2 Re1 Rc1 Rf1 Rc5 Rb1 Rd5 Rc1 Rdd7 Ra1 Bg5 e7 Bdb4 e8B Bf4 Ba4 Bf8 Rae1 Bfe7 Bad1
B1N1K3/3RN1pN/7R/2Q1p1BQ/1p4QP/bp1nQ3/1b3q1p/2nn1N1k b - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 cxd5 a5 b4 axb4 f3 Na6 f4 Nb8 f5 b5 f6 Bf5 gxf5 Ra3 Bb2 Rh3 Bc1 Rg3 Ba3 h5 hxg3 h4 Bb2 h3 Bc1 Rh4 gxh4 Qc8 Qc2 Qd7 Qd1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 e6 a4 e3 f7 b3 f6 c6 a5 e2 a6 e1B a7 b4 a8N h2 Ra6 Qd7 Nf3 Qd8 Bg2 Be7 f8Q Qd7 f7 Qc8 Ne5 Qe8 Ng6 Qd7 Nb6 Nh6 Qh5 Bg3 Rd1 Ng4 Nc8+ Kc7 d6+ Kb7 Kc5 Bg5 d4 Nf2 d5 Be5 Nd2 Qd8 d7 Qf6 d8Q Nd7+ Kc4 c5 Kb5 c4 d6+ Qf3 Qde7 c3 Nf1 c2 Qee8 Nc5 d7 Ba1 d8Q e5 Qd4 Bd2 Qe6 Bdc3 Bh6 c1N Qeg4 Kc7 Rd3 Nd1 Qe3 Qf2 Rd8 N5d3 Ba8 Bab2 Rf6 Ba3 Qfc5+ Kb8 Kc6 Ba1 Kd7 B1b2 Nb6+ Ka7 f8N Ka6 Bg5 Ka7 Qe7 Ka6 Nc8+ Kb5 Qgg3 Kc4 Qgg4+ Qf4 Rc6+ Kd5 Nh7 Qf6 Qd2 Qf4 Qc5+ Ke4 Nge7 Bd4 Qh3 Qf2 Ke8 Bdb2 Rd7 Ne1 Qe6 Ned3 Qhh6 Kf3 Qde3+ Kg2 Qh5 Kg1 Qeg4+ Kh1 Rh6+
2rqkr2/b2b1QR1/1qrbn3/5Q2/r1QnR1K1/2Q1R1BP/r2R3N/B3N3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 a5 d4 e5 b4 c5 d6 c4 h3 f3 Kg3 e4 b6 a4 b5 c3 d5 f2 g6 f1Q d7+ Ke7 f6+ Kd6 f7 Ke7 b7 e3 b6 c2 d6+ Ke6 g7 e2 Nd2 e1R Bb2 c1R Qf3 a3 Qc3 a2 Ngf3 Qb5 Rg1 Qf6 d8Q Ne7 g8Q Na6 b8B Nc7 b7 Nc6 d7 Qb6 Nf1 Re2 Ne1 Nd4 Nh2 Qe7 Rb1 a1R Qe8 R1a4 d8R Bd7 Ba1 Rea2 Rb3 Rh6 Kf4 g3 Kg4 g2 Rb4 Rf6 Rc4 Rf5 Rb4 Kf6 Rc4 Ne6 Bg3 Rc8 b8R Rc6 Ra8 Rf3 Ra5 Qd6 Re5 Qd5 Re3 Bd6 Qef8 Rcc2 Qfg7+ Ke7 Q7h7 Qda5 Qf5 Qa8 Rc5 Qab8 Rce5 Q8c7 R5e4 Rff2 Rb8 Qd8 Rb7 Rc1 Rf1 Rf3 Rf2 g1B Rd2 Rc8 Qb2 R1c6 Qc3 Qe8 f8Q+ Kd8 Qd5 Rf6 Qfg7 Rf8 Q7f7 Qe7 Qff5 Ke8 Qdc4 Qed8 Qg7 Nf3 Ree2 Bgc5 R2e3 Nd4 Qg8 Qb1 Qg7 Ba7 Qgh7 Qbb6 Qg7 Qdc7 Qgf7+ Kd8 Qe5 Be8 Qfh5 Qe7 Qg7 Qf6 Rf7 Bd7 Qf5 Ke8 Qgg6 Qfd8 Rg7+ Rf7 Qgf6 Rf8 Qf7+
1nb1Q1BN/BRB2q2/2b1Nq1r/K4k2/P5Q1/2rr3R/1q1BrNn1/1N4n1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 g5 f4 gxf4 h4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qd8 a4 Kd7 d4 h5 Kd2 e5 g7 b5 d6 c5 f6 Ke6 d5+ Kf5 g6 f3 d7 e4 f7 b3 Kc3 b2 f8Q+ Qf6+ Qd4 b4+ Kb3 h4 d8B c4+ Ka2 h3 d6 e3 d7 h2 Be7 b3+ Ka3 c3 Kb4 c2 d8B f2 Bc4 f1Q Nh3 e2 Ng5 e1R Ne6 Nh6 g8N Ng4 g7 Ne3 Bc7 Ng2 Bd2 c1R Bc5 Rc3 Qe8 Rh6 Ba7 Re2 Ka5 Qf3 Ra3 Rd3 Rg1 h1B Rd1 Qf7 Nf6 Qf4 g8N Qf2 Nc3 b1N Nfe4 b2 Rf1 Qf4 Nf2 Qh4 Rb3 Qhe7 Rb7 Qef6 Be3 Nd2 Nb1 Nf3 Bd2 Ng1 Rc1 Ne1 Rc3 Bc6 Ra3 Ng2 Qh4 Rd6 Rh3 Rd3 Qg3 Rh4 Ba2 Rc4 Qh4 Rcc3 Nh6+ Kg6 Bc1 Qe7 Nd4 Bf3 Nhf5 Qe6 Na3 b1Q Qg4+ Kf6 Bd2 Qfd7 Nh4 Qb2 Ng6 Qed6 Bg8 Qf7 Nh8 Bd5 Nc6 Be4 Nd8 Bd5 Qb4 Kf5 Nb1 Qde7 Kb5 Qe5 Bc5 Ra6 Ba7 Rh6 Ka5 Qef6 Ne6 Bc6 Qg4#
1B2Rr2/2q4k/4N2P/bN2Qq1N/rQ3b2/qrBN2rR/nbn1K3/5QQ1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 h4 Kf7 b4 a5 d4 g5 e4 Kg7 d6 c5 e5 g3 d7 f2+ Kf1 a4 h5 g2+ Ke2 f1R d5 g4 b6 a3 f6+ Kh7 d6 a2 b5 g3 b7 c4 f7 c3 e6 c2 h6 Rf3 b6 Bg7 f8Q Bb2 e7 Nf6 e8N Ra4 Ng7 Qc7 d8Q Rb3 d7 Na6 b8Q Ne4 b7 Nb4 Bd2 c1B Na3 Nc2 Qb4 Rf8 Nf3 g1R Qg5 g2 Bc3 Bd2 Rb1 a1Q Nb5 Qa3 d8N Bdc1 Ne5 f3+ Kd3 f2 Nh5 Bf4 Rh3 f1Q+ Qe2 Qa2 Ne6 Qa3 Re1 Qf2 Qf3 Qfc5 Ke2 Qd5 Nd3 Qf5 Bf6 Nc3+ Kf2 Qg7 Qe5 Na2 b8B Qc7 Bg7 Rh1 Qgg3 g1B+ Ke2 Bb6 Qf1 Rg1 Qgf2 Rg3 Q2g1 Re8 Qd5 Ba5 Bc3 Reg8 Qe5 Rf8 Qee3 Rfg8 Ng5+ Kg6 Kf2 Qce5 Qed4 Qg7 Re8 Rf8 Qe5 Qc7 Ne6 Kh7 Ke2
Q2K1bnn/2Q1B1b1/BNq2NR1/4br1r/2Q5/Qr3b2/1rP3b1/2RB1B1k b - - 0 1 legal: proof: b4 f5 d4 h5 d5 a5 bxa5 g5 Nc3 e5 Ne4 h4 Ba3 c6 dxc6 f4 Bc1 g4 Qd4 exd4 Ng3 f3 gxf3 hxg3 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kb5 d5 e4 d3 a4 b6 h4 d2 a6 Kf4 a5 g2 e5 d4 c7 d3 e6 g3 a7 Ba3 h5 Qd4 a6 Nc6 e7 Nh6 e8B Rh7 Ne2+ Kg5 f4+ Kg4 f5 Kf3 f6 d1B f7 g1B f8Q+ Bf5 c8B g2 Qe7 d2 Nc3 Ne5 Nd5 Qc3 Qc7 Nef7 Nf6 Bh2 Rg1 Rb8 a8Q+ Be4 a7 Be5 Ba6 Ng8 h6 Bf8 Ba3 Nh8 Rc1 Bd5 Be7 Qc6+ Kb4 b5 Ka5 Rf7 h7 b4 Bd7 b3 Bg4+ Kf4 f3 Kg3 f4 Kh2 f5 b2 Bh5 b1R Bg4 Ng6 h8Q+ Rh7 Qg7 R1b3 Qf7 Rh5 Bge2 Be4 Qc4 Nh8 Bg4 Be2 Bf3 d1R Bg4 B2d3 Bge2 Re1 Bd1 Bf3 Bfe2 Rb2 Nd7 R8b4 Qcb7 Qc8 Qab8 Rf1 a8N Bfe4 Qb6 Rf2 Bf1 Bh6 Q6d6 Rb6 Qa3 Bg7 Qa7 Bc6 Qb8 R6b3 Qa7 Bb5 Kb6 Be2 Qb8 Qe8 Qbd6 Bg4 Kc7 Bc6 Nab6 Qg6 Kd8 Rf4 Na4 Bcf3 Qdc7 Bh3 Qe4 Qf6 Qa8 Qc6 Nab6 Bd6 f6 Rff5 f7 Bg3 f8Q B3e5 Qf7 Bf8 Bfd3 Bg7 Rf1 Bf8 Rf2 Kh1 Bf1 Beg7 Qe6 g1B Rg2 B1d4 Nf6 Be5 Rg6 Bhg2 Qc4
k4B2/1r6/3Q2B1/1N3RQ1/2b1Q1Rq/QPBBn2n/Kbr1Nnn1/3qrr2 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 b4 Ba6 b3 axb3 Qd7 Bf1 Qd8 h4 a5 h5 f5 exf5 a4 h6 a3 Rh3 axb2 Rh2 gxh6 Rh4 h5 Rh1 h4 f4 Kd7 d4 e5 Kd2 h5 Kc3 c5 g4 Kc7 g5 Kb7 d6 c4 d7 e4 f6 e3 f7 h3 f5 e2 f6 e1R d5 h2 d6 h4 g6 h3 g7 Nh6 g8B Bg7 f8B Ra2 Qh5 Rh7 Qh4 Nf5 Ne2 Na6 Kc2 c3 f7 Ne3+ Kd3 c2 Na3 b1Q Nb5 Ng2 Rg1 h1N Bd2 h2 Bc3 Nc7 Qe4+ Nd5 Kc4 Qe7 d8Q c1R d7 Qh4 Qg5 Rac2 d8Q Be6 Qd6 Nf2 Ra5 h1N Qa3 Be5 Qd6 Rg7 Bh7 Nh3 Bg6 N1f2 Qa3 Kb8 Kc5 Nde3 Kb4 Bc4 Ka4 Ngf4 Rg4 Nfg2 Qd6+ Kc8 Ka3 Bf6 Nc7 Kb8 Rd5 Rcd1 Nb5+ Ka8 Rf5+ Rd5 Ng1 Qd1 Bd3 Rh7 Ne2 Rf1 Ba5 Bb2+ Ka2 Re1 Bc3 Rf1 Qef4 Re5 Qfd4 Re7 Q4f4 Rb7 Qe4 Rh8 Bh6 Re8 f8Q Nd5 Qfe7 Nde3 Bf8 Qh7 Qa3+ Kb8 Q7e6 Qh4 Q4c6 Nd5 Ned4 Ree7 Qed7 Ree1 Ne2 Nde3 Qde7 Qh5 Qce4 Qh4 Qab4 Ka8 Qed6 Nh1 Qbc5 N1f2 Qa3+
1K1Q1Q2/3Q1b2/bbNRq2P/3n3B/2k2R2/6n1/1Q1RnNbB/1r1rnqR1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 g5 h4 f5 e4 c6 d6 b3 h6 g4 h7 f3 b6 f4 b7 f2 d7 b2 h5 g3 h6 f3 Na3 b1B Nc2 g2 Ra2 Ne7 Be2 f1B Nd4 f2 Nh3 g1N Bh5 Na6 b8R Nd5 Rb4 Ne2 Rg1 Qb6 d8R Bg2 Rd6 f1N Nf2 Rb8 d3 Rb7 Bf4 Nfg3 Rd2 Ba2 Qa4 Rg8 h8Q Rgg7 Qb3 Rgd7 Qb2 Bc4 Ra4 Nab4 Qg7 Rd8 Qd7 Nc2 Ke6 Ne1 e5 Rb8 Rb4 B8a6 Ra4 Nh1 Bh2 Nhg3 Rb4 Be7 Ra4 Bg5 Rb4 Be3 Ra4 Ndf4+ Ke7 Bf7 e6 Rg8 Rb4 Rg5 Ra4 Rd5 Rb4 Rb7 Ra4 Qb3 Kd8 Rb4 Kc7 Qa2 Qa1 Rb1 e7 Qb3 e8Q Qc4 Raa2 Kb4 Qa8 c5 Qf8 Qb3 Rac2 c4 Kb8 c3 Nc6+ Kb5 Ra2 c2 Qb2 Bb6 d4 c1Q Ra5+ Kc4 Rb5 Rg5 Rf5 Nd5 Rff6 Qe3 Rf4 Qe6 Rf6 Ne7 d5 Rg4 Rf5 Rd4 Rf4 Qf5 Rf6 Qe6 d6 Qd1 Qdd8 Nd5 d7 Nf3 Qde7 Qf1 d8Q Ne1 Qed7 Qf5 Rd6 Qe6 Rc2+ Nec3 Rf6 Rdd1 Rd2 Nce2 Rf4+
Q4K1b/1Nqr2Pr/1n2k3/1R3Rr1/q1N2NQ1/4BrB1/n1q3qB/Nr4B1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 g3 g4 Bg2 Qg5 Be4 Qd8 Bf3 gxf3 g4 Qd7 h3 Qe7 g5 Bg4 hxg4 Qd8 Kf2 Kd7 d4 f5 b4 h5 e4 a5 b6 c5 b5 a4 b7 a3 g6 h4 e5 h3 b6 a2 g7 h2 g5 c4 d6 c3 g6 c2 d5 Nc6 b8B Ra3 b7 Ra4 e6+ Ke8 d7+ Ke7 d6+ Kf6 e7 Qc7 d8B Ke5 e8N Nf6 g8Q Nb4 d7 Bg7 Nd6 Ra5 Na3 Nfd5 Be3 c1Q Nh3 Nb6 Rf1 h1Q Nc2 Rh7 Rb1 Bh8 g7 a1Q Be7 Qaa3 d8N Na2 Na1 Qa4 Rb5+ Q1c5 Bf8 Kf6 Qe2 Qcc2 Nc4 Ra7 Bfc5 Qg1+ Ke1 Qg2 Bg1 Ra5 Bce3 Ke7 Rb3 Rd5 Rb5 Rd7 Qd5 Qc1+ Qed1 f2+ Ke2 f3+ Kd3 f4 Ke4 Qd2 Kf5 Qb2 Re1 f1R Qc6 f2 Qg4 f3 Kg6 Qd2 Nf4 Qb2 Rf5 Qbc2 Rb1 Rfd1 Rb3 f1R Rb5 f2 Qf3 R7d5 Qe4+ Kd7 Kf7 R1d3 Kg8 Rb1 Kf8 f1R Qef3 Qc6 Bd6 Qc7 b8B Rf2 Qe4 Rf3 Be5 Rc5 Qa8 Rd4 Nb7 Rcd5 Ne2 Ke6 Beh2 Rd7 Qh5 Rh4 Qg4 R4h5 Bg3 Rg5 B3h2 Qc6 Bbg3 Qc7 Nf4+
1n1rNNn1/1n1B2rn/N4Q1R/n4Bn1/b1P5/1kQ1N3/r1RK2Br/1rB5 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 cxd4 g4 b5 axb5 exf4 Ra6 f3 Ra3 Qb6 Ra1 Qd8 h3 f5 Bf4 g5 Be3 f4 Bc1 Qf6 h4 Qf5 gxf5 g4 Qd2 Be7 Qd1 Bg5 hxg5 Kd8 Rh6 Ke7 Rh1 Ke8 e4 Ke7 b4 Kd6 c4 h5 g6 a5 b6 f2+ Kd2 d3 g7 f3 b5 Kc5 f6 Kb4 e5 d5 f7 a4 f8N h4 b7 d4 e6 a3 b6 h3 e7 a2 e8B h2 Qc2 g3 Bb5 g2 Na3 Bd7 Kd1 d2 Qd3 Rh7 Nh3 g1N Ng5 Nh3 Bg2 f1N Qf5 f2 Qf6 Ng3 Rf1 h1R Ng6 Rh2 Qe5 Kb3 Nf7 Ne4 Nc2 Nhg5 Nf8 Nef6 Rh1 f1N Nd6 Ng3 Ne3 N3e4 Ne8 Nd6 Ke2 d1R Qe7 Nh6 g8B Rg7 Be6 Nfh7 Bf5 Ng8 Qf6 Rd2+ Ke1 d3 Rb1+ Rb2 Ra1 Rb1 Kd2 Na6 b8Q Nb7 Qg3 Nb8 Ba6 Ba4 Bb5 Ra7 Bbd7 Ra6 Ke1 d2+ Kd1 Na5 b7 Ra8 Ke2 d1N Qge5 Nb2 Kd2 Nd3 Qg3 Nc5 Qe1 Nbc6 b8N Ncb7 Na6 Rd8 Qg3 Nb8 Qe1 Rh4 Rh3 Rg4 Rh6 Rh4 Qg3 Rh2 Ba3 Rg1 Rc1 a1R Rc2 Rgb1 Bc1 Ra3 Qge5 Ra2 Qc3#
6RB/1R1n3B/2r3Q1/1bBK1pr1/Rb2n1N1/1B1nb2P/2R3Nq/qkq3Q1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 h6 c5 d6 g5 h7 b3 d5 f6 d7 b2 b6 g4 d6 f3 b7 g3 h3 g2 Rh2 f2 Nf3 g1Q Na3+ Kc3 Nc4 b1Q+ Kd5 f5 e4 Ra6 e5 Qa5 d8Q Nh6 e6 Bd7 e7 Rg8 e8B Ng4 h8B+ Ne5 Qf6 Rg5 Ne3 Rc6 Ba3 c4+ Bc5 Kb2 Ng2 c3 Bg6 c2 Bh7 c1B Bc4 f1N Ra4 Nd2 Bb3 Ne4 Qg6 Be3 Qf1 Be8 d7 Qc1 d8R Nd7 b8R Kb1 Rb7 Nd3 Ne5 Qc3 Rda8 Qa1 Ng4 Qf2 Qg1 Qd2 Ba7 Bb4 Bc5 Qe2 Ne1 Qea2 Rc2 Q2b2 Ng2 Qe5+ Kc4 Qh2 Kd5 Bf7+ Qe6 Ndf2 Rg8 Bh5 Ne5 Be2 Qg6 Bb5 Ng4 Nd3 Rbb8 N3e5 Rb6 Nd3 Rb7
q2rN1r1/5Kn1/NBQ4b/n2Rp1NQ/n2b1R1q/PqB3b1/1Bk3B1/2N5 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g3 c5 g4 hxg4 Nc3 d5 Nb1 Bd7 d3 Bb5 cxd5 c4 Qa4 c3 Qd1 Bc4 dxc4 Qd6 Qa4+ Qd7 Qd1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 b5 Kg6 b3 h4 Kb4 f4 g3 f6 c2 d6 e6 d7 g2 f5 b2 c5 Qa5 d8B Qc7 f7 Be7 f8N Nh6 c6 Qh2 f6 Bd6 h5 Qh4 f7 Nf5 h6 Bg3 h7 Rg8 c7 Nc6 c8Q Na5 a3+ Kb3 h8B b4 Ne2 g1B Bg2 Bd4 Nbc3 b1N Nd5 Nc3 Bb6 Na4 Qc6 Rd8 Bd2 Kb2 Nh7 c1B f8N b3 Kf7 g5 Nb4 g4 Na6 Ng7 Be1 Bg5 Nc1 Bh6 Ra2+ Kb1 Bc3 b2 Qdf3 Kc2 Ng5 Be3 Ra1 b1Q Rd1 Qb3 Rd5 Bd4 Nd7 Bgf2 Ba7 g3 Nf6 Be1 Ne8 Bef2 Bf1 g2 Qh5 g1Q Bb6 Bg3 Bh3 Qe3 Bg2 Qe5 Rb1 Qb8 Ra1 Qa8 Rb1 Qa2 Rbb5 Qb3 Rb4 Nf5 Bf6 Ng7 Bb2+ Bc5 Bfd4 e5 Bdc3 Be3 Re4 Bd4 Rf4
1R1NQ3/2qn3b/R1r2PbR/5B1r/1q3qk1/b2Q3n/1RpB1Q2/N1Q1nK2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 g4 Kf7 f4 Kf6 d4 c5 d6 e5 d7 h5 b6 c4 d5 b3 d6 c3 b7 h3 Ne2 e4 Na3 b2 Nd4 b1Q Ne6 h2 Bd2 h4 Bd3 e3 Qc1 h3 Kf1 Qc7 d8Q+ Ne7 d7 Qb4 Be4 Ra6 Nc2 Rc6 Qe8 Rh5 d8Q Nd7 b8R Bb7 Ra6 e2+ Ke1 Bc8 Na1 c2 Kf2 e1N Kf1 Qba5 Rb2 Qb4 Rg1 h1B Rg2 Nc5 Qd3 h2 Nd8 Ng6 Rg3 Be6 Rh3 Bg8 Rh4 Nd7 g5+ Kg7 f6+ Kh7 f5 Nf4 g6+ Kh6 g7 Kg5 f7 Bh7 Rh3 Kg4 g8R+ Bg6 Bd5 Be4 f6 Be7 f8Q Bf5 Be4 h1Q+ Kf2 Qh2+ Kf1 Bc5 Qfd6 Qg3 Q6d4 Bf8 Rh2 Nh3 Qf2 Qgf4 Rh8 Ng1 Rh6 Bh7 Rh3 Bfg6 Re3 Nh3 Rf3 Qh2 Rf5 Qhf4 Rb5 Qd4 Rbb6 Ba3 Rb8 Qb4 Bf5+
3R2rb/1KB2P2/Q2BknrR/2QN1pbn/nB6/4qq2/b1N3Q1/3QBr2 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 f4 Qd6 e4 Qd7 e5 Qd8 e6 fxe6 f5 Kd7 f6 Ke8 Bd3 Bb7 Bh7 Bc8 Bf5 exf5 Kf2 Kf7 Ke3 a5 Kd4 g5 Kc5 e5+ d6 c6 d4 g4 h4 a4 b4 e4 d5 e3 b6 e2 b7 e1B b5 g3 b6 a3 h6 g2 h5 a2 h7 Bh6 d7 Qc7 d8Q Bf4 d6 Qd7 h6 Bed2 Qc7 Be5 Nh3 g1R Ba3 Qe7 Bb4 Be6 Na3 Bec3 Nf4 Bd5 Nc2 Ra6 Rh3 Bc4 Nd5 Ke6 f7 Rf1 Qe2+ Be5 Qg2 Bg5 Rd1 a1N Rh4 Qf6 d7 Ba2 d8Q Qg6 Rh5 Nf6 Rd2 Rg8 h8B Bb2 h7 Bc3 Rh6 Qh5 Bg7 Qf3 h8Q Bb2 Qh7 Be5 Qg6 Nb3+ Kc4 c5 Kb5 c4 Qc5 Nd7 Kc6 c3 b8B Bd4 Bc7 Be5 Kb7 Bd4 Ne1 c2 Rd1 c1Q Nc2 Qa3 Bf8 Qc1 Bfd6 Qce3 Bg3 Be5 Bge1 Bb2 Kc8 Be5 b7 Rb6 b8B Rc6 Qa5 Nbc5 Rd2 Na4 Kb7 Bd4 Qa6 Bb2 Qg7 Ba1 Qgf8 Bd4 Qc5 Rd6 Rh8 Nh5 Rh6+ Ndf6 Rd3 Rc6 Bd6 Rc8 Bbc7 Rg6 Qg8 Rf8 Qd2 Bc3 Qd1 Ba1 Qg7 Rg8 Bb8 Ng4 Bbc7 Bd8 Rd4 Rf6 Bdg3+ Nb6 Qg5 Rfg6 Rd3 Bh8 Bge5 Nh2 Qg2 Ng4 Rd2 Bg5 B5g3 Qfe2 Nc3 Ngf6 Rd8 Qg4 Bgd6 Na4 Nd5 Qge4 Qaa7 Q4f3 Qa6
2rNQ1R1/3p4/6n1/1rRR1B2/1b1n2K1/1B1b4/nQbN2P1/qB1kBRrq b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Ke2 Kf7 Kf3 h5 c4 e5 b6 h4 c5 e4+ Kg4 d3 f4 e3 b7 b3 f6 Kg6 f7 e2 c6 e1Q f5+ Kg7 g6 Kf6 g7 Ke5 f6 Kd4 c7 h3 Qe2 d2 Ra5 d1B Rc5 h2 Bd2 b2 Nh3 Ra5 Ng5 Bb3 Qe8 Nc6 b8Q Bc2 Bd3 Nge7 g8B Ng6 Bf5 Ba6 c8B Rb5 Bb7 Qa5 Rf1 h1R Bh7 Qc1 Be1 Rg1 Nd2 b1N Ne6+ Ke3 Nd8+ Be7 f8R Ke2 f7 Nc3 Ba8 Nd4 Bd5 Qaa1 Bb3 Na2 Rg8 Kd1 f8R Bd6 Rd5 Bb4 Rf6 Qcb1 Rc6 Qc1 Nc4 Qh6 Rcc5 Qh1 Qbe5 Ra5 Nd2 Bd3 Rg7 Rf8 Rg8 Rb5 Qh8 Rf6 Qg7 Rc6 Qh8 Rc8 Qf6 Ne6 Qb2 Nd4 Nc4 Be2+ Kg3 Nh8 Nd2 Bc4 Bh3 Be2 Bd3 Ng6 Be4 Bc4 Bhf5 Be2 Ba4 Bb3 Bb1 Bc2 Bb3 Bd3 Kg4
1N1R2Nb/bbbn2nk/b1Pr2N1/rp3Q2/4R1K1/2N2B2/6BR/2R1Qq1r b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 f6 h6 g4 Nc6 g5 Ra4 f5 Ra8 fxg7 Nb8 g6 Ra4 Bf4 Ra8 Bg5 hxg5 Ke2 b5 Kf3 e5 h4 d5 c4 e4+ Kg4 d4 a4 e3 c6 b3 a5 b2 a6 e2 h5 e1B c7 d3 c5 d2 a7 Ke7 h6 Kf6 h7 Ne7 g8R Bg3 g7 Qd3 Qe1 d1R Rh4 Ba6 c8Q Nd7 Nh3 Bc7 Nc3 b1B Bg2 Qf1 Nf4 Rd6 Ng6 Be4 Rc1 Beb7 Bf3 Kf7 f6 Nf5 Bg2 Be7 Rd8 Bf8 g8N Ng7 Rh2 Be7 Re8 Bed8 Re4 Be7 Kh3 g4+ Kh4 g3 Kg4 Nf8 Bf3 g2 Qf5 g1B Bg2 Nd7 Bf3 Rc8 a8B Bd4 Ne5+ Kf8 f7 Bf6 Nc6 Bf2 Nb8 Re8 Rb4 Re2 Rf4 Ra2 Re4 Ra5 Bg2 Nh5 Bf3 Kg7 f8R B2d4 Qe6 Kg6 Rd8 Ng7 Qe5 Bc8 Bd5 Bcb7 c6 Ba7 Nh6 Re8 h8N+ Kh7 Ng6 Re7 Qf4 Re5 Ng8+ Rh5 Qf5 Bfd4 Rf2 Rh1 Rh2+ Nh5 Bg2 Bh8 Re2 Bf2 Bdf3 Ba7 Kh4 Ng7 Re4 Ba8 Kh3 B8b7 Kg4+
b7/7K/R1R1bRBn/1r3R2/qrQNb2N/P4Bkr/1Q2nrNp/N3n3 b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 h4 Na6 g4 Nb8 f5 Ra5 Bb2 Ra7 Be5 Be6 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ra8 Ne2 Bd7 Ng1 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 e5 d4 h5 f7 b5 f8R c5 f6 h4 g7 c4 g6 b3 f7 f3 Qe2 c3 Nd2 c2 Bg2 f2 Ngf3 b4 Rhc1 b2 Nb3 h3 Nh4 b1B Bf3 Nh6 g8Q f1R g7 h2 Qc4 Rh7 Qh8 Qa5 g8B Rf2 Qg7 Rh8 Bh7 Qa4 Bg6 Ra5 Ng2 Rb5 a3 Kd7 d6 Nc6 d5 Nd4 Rf1 Ba2 Rac1 Bb7 Na1 b3 Ra8 b2 Ra6 b1B f8N+ Kd8 d7 Ne2 Rf6 Ba8 Ra6 Rh7 Qh8 Ke7 d8R Rb4 Rdd6 Bb3 Rf6 Rb5 Rcd1 c1R+ Rd3 Rc2 Rc3 Rb2+ Rc2 B3a2 Rf5 R2b4 Rff6 Ng8 Kf5 Rh3 Kg5 Nh6 d6+ Kd8 d7 Ke7 d8N e4+ Rf5 e3 Nc6+ Kd6 Qb2 Bb3 Rcc1 Be4 Kf6 Ba2 Kg7 Bb3 Kh7 Ba2 Qcc3 Be6 Rf6 Kd5 Nd4 Ke5 Qc6 Nf4 Qc4 e2 Qd3 e1N Rcc6 Ne2 Qc4 Bd7 Nfe6 Bc8 Ng7 Bd7 Ngf5 Be6 Nge3 Kf4 Nh4+ Kg3 Neg2 Nd3 Rc1 Ne1 Rc3 Bc2 Re3 Bd3 Re5 Be4 Ref5
2bNn2Q/K2QQ3/3nBNrb/5r2/p4qR1/k4Q2/rR1b2P1/nBN2N1r b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 Ke7 e4 Qe8 b3 Kd7 Ba3 Qd8 Bc5 Ke8 Be3 fxe3 Ke2 Ke7 Kd3 Kd6 Kd4 f5 g6 h5 g7 a5 b4 c6 e5+ Kd7 d6 a4 Kc5 f4 d4 h4 b6 f3 b5 e2 d5 e1N b7 f2 b6 h3 Bd3 f1R Ra2 h2 Qf3 Ne7 g8B Nc2 Rb2 Rh5 Nd2 Rf5 Ne2 Ra1 Nf1 Ra6 Nc1 Qc7 Be4 Bh6 e6+ Kd8 d7 Qf4 Bd3 Ra2 Bf7 Na1 Bb1 Rg5 Bg8 Nf5 Bf7 Ke7 d8N Nd6 Bg8 Kf6 e7 Rf5 e8N+ Ke7 Bf7 Kd7 Nf6+ Ke7 Rg1 h1R Be6 Qh4 Rb4 Bd2 Rg4 Nd7+ Kd4 Bh6 b8Q Qh2 b7 Qf4+ Qe4 Rb6 Qa7 Ra6 b8Q c5+ Kc3 c4 Kb4 Rb6+ Ka5 c3 Qf3 c2 Qab7 Rbb2 Ka6 Rb6+ Ka7 Rc6 Ne2 c1B Qb4 Bd2 Nc1 Nc5 Q8b5 Ne8 Qb7+ Kd6 Qd7+ Ke5 d6 Ne4 Qb8 Kd4 Qe7 Kc5 d7+ N4d6 Qb2 Rg5 Qe5+ Kb4 Qf5 Rhh5 Qfh7 Rg6 Qh8 Rc3 Rh1 Ka3 Rhh4 Re5 Rh5 Re1 Rb5 Re5 Rb2 Rf5 Nc6 Re3 d8Q Rc3 Qdd7 Re3 Qd1 Rh3 Nd8 Rh1 Qf3+
1r3bBQ/NNn3n1/q2Q2r1/2pq2R1/QkP2Q2/Rb2bRq1/1K1R1b2/4B3 b - - 0 1 legal: proof: b4 a5 g4 f5 e4 h5 exf5 hxg4 d4 e5 dxe5 b6 a4 b5 axb5 axb4 Kd2 Ke7 h4 g5 f4 c5 f6+ Ke6 b6 Kd5 b7 b3 Kc3+ Kc6 h5 d5 h6 g3 e6 d4+ Kb2 g2 e7 g4 e8R d3 f7 Kb5 h7 g3 f5 Qd7 f6 Qc6 Rh5 Kc4 Bd2 Nh6 Nh3 g1B Nf4 g2 Re2 Qd6 Rg5 Rg8 h8Q Bf2 Be1 g1B Ra3 d2 Nc3 Nf5 Nb5 Kb4 Ne6 Qa6 Na7 Rg6 Nd8 Ng7 c4 Bd7 Bg2 Ba4 Bd5 Be3 Reg2 Bgf2 Qa1 Qb6 Qd1 Na6 b8Q Nc7 Nb7 Qa6 Qd8 Rc8 Qd6 Rb8 Qf4 Bd6 f8Q Be7 Kb1 b2 Bg8 Bb3 f7 Bd6 Qd8 Bf8 Qdd6 Ba2+ Kc2 Bb3+ Kd3 b1Q+ Qc2 Be7 f8R Qb2 Rf6 Bf8 Qd1 Qe5 Rf7 Ba2 Kc2 Bb3+ Kb1 Qd5 Kb2 Qf3 Qfd4 Qg4 Rf3 Qg3 Q4f4 Bd4+ Rc3 Bde3 Qa1 d1Q Rh2 Bg1 Rd2 Qdf3 Qd1 Qd5 Qc2 Bef2 Rf3 Be3 Qcf5 Bgf2 Qfd7 Rd8 Q7c6 Rb8 Qa4+
kQNN3R/3nrPQq/b1B4p/1q2Q2r/1Q2n3/5b1q/RBN3nN/5n1K b - - 0 1 illegal: No possible last move
6n1/BNQ1b1n1/1RR1r1Nn/6NN/Q1qP2Rb/2kBp3/4n1nR/K4n1r b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 c4 Bb7 f4 Bc6 fxg5 f4 h5 Bd5 h6 Nxh6 cxd5 Ng8 b4 Kf7 b6 c5 b5 h5 b7 e5 b6 a5 d6 Ke6 g6 Kd5 d7 Kd4 d3 a4 Kd2 a3 Kc2 f3 g5 a2 Kb2 e3 g7 f2 g6 e2 Nc3 e1N Bd2 e4 Rh3 e3 Rh2 c4 Qb3 h4 Qa4 h3 Nd5 Ra6 Bb4 Nc6 b8R Qh4 d8N Ne5 b7 Ng2 Nf4 Nf7 Rc1 c3+ Ka1 c2 Nh5 Re6 Bc5+ Kc3 Nf3 Be7 Ng5 Qc4 Ba7 Nfh6 Be2 f1N d4 Rh7 Bd3 Rh8 Rb1 c1N Rb6 Ne2 Rc8 Rh7 b8Q Rh8 Rh1 h2 Nb7 Rh7 Rcc6 Rh8 Rg1 h1N Qc7 Nhg3 Rh1 Ngf5 Rh3 Nf6 g8R Ng7 Rh2 Rh7 Rf8 Nfg8 Rf4 Kd2 Kb2 a1B+ Kb1 Bb2 Rg4 Bba3 Ka1 Bd8 Qf7 Kc3 Qc7 Ne8 g7 Bae7 Nh3 Bh4 Ng5 Be7 Bb1 Ngf6 g8N Ng7 Be4 Bb4 Ne7 Nfg8 Ng6 Be7 Bd3 Bf2 Rh1 Nf7 Nf6 Rh2 Nf3 Bh4 Nh5 Nfh6 Ng5 Ne1 Rhg1 Rh1 R1g3 Ng2 Rh3 Re5 Rh2 Re4 Ngf4 Re6 Ng6
1qN1qr2/n1R1qr1R/k2N1RB1/2n2p2/1q1N1qNK/2P2Q2/2QB4/1n3R1b b - - 0 1 legal: proof: d4 c5 a4 cxd4 f4 b5 axb5 e6 f5 exf5 h4 f6 g4 Bb7 g5 Ba6 gxf6 Bc8 Bg2 g5 Bf1 g4 Ra5 Bh6 Ra1 Bg5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Kf2 h5 Kg3 d5 b4 Kd7 e4 Kc7 g6 Kb7 f7 a5 f8Q h4+ Kf4 a4 e5 d3 b6 d4 b5 a3 g7 a2 e6 h3 Kg3 h2 e7 d2 e8R d3 Ne2 Nf6 g8N Nc6 Re6 Qe8 Nbc3 Rh7 Ne7 Nd7 Ne4 Nc5 Nd4 Na7 Be2 Rf7 Kh4 g3 Bh5 g2 Bg6 g1Q Rf6 Qe3 Qf3 d1Q Bd2 Qde2 Raf1 a1Q Qg8 Be6 Nc8 Qa5 Qg7 Bd5 Ned6+ Kb8 b7 Qb4 Qh7 Kc7 b8R Qf4+ Qg4 Q2e7 b6+ Kd8 b7 Kc7 Rc1 Bg2 Rhf1 Bh1 Qg8 Rg7 Qa2 Rf7 Be3 d2 c3 d1N Qc2 Nb2 Bd2 Nc4 Ra1 Na3 Ra2 Qfe3 Qf3 Nb1 Ra4 Qa5 Rc4 Qb4 Nb6 Q3e5 Rd8 Rc8 b8N Qe3 Nbc6 Qf4+ Qg4 Rb8 Ne5 Ra8 Nbc8 Kb8 Ne4 Kb7 Ned6+ Ka6 Rd7 Bd5 Nef3 h1Q+ Nh2 Qg1 Rb7 Bh1 Rd7 Qge3 Rb7 Qfe5 Qf3 Q3f4+ Ng4 Q5e6 Nb6 Q6c8 Rd7 Qb7 Rc7 Rd8 Nbc8 Qb8 Rb7 Qea4 Rc7 Rdf8 Rb7 Qae8 Rd7 Ne6 Rcc7 Nc5 Ne6 Rh7+ Bh5 Q7d8 Rg7 Qde7 Nd4 Rh6 Rf7 Rg6 Rh7 Rg7 Bg6 Rgf7 Rd1 Qfe4 Rc1 Qf4 Rf1
1r2RBb1/1Q2bN2/2N2R2/1PqQ2NK/6p1/1b3qN1/kbB2R2/bR2nq1n b - - 0 1 legal: proof: h4 b5 f4 d5 a4 g5 axb5 a5 c4 e5 cxd5 exf4 g3 Ra6 Qc2 Rg6 Qb3 g4 Qd1 Rg5 hxg5 fxg3 b4 Kd7 e4 Kd6 Ke2 c5 d4 h5 g6 f5 b6 c4 b5 a4 g7 a3 b7 g2 Kf2 c3 Kg3 c2 Nf3 g1Q+ Bg2 h4+ Kf4 h3 Ng5 h2 Nc3 a2 Ne2 Nd7 Ng3 Nh6 g8R Nc5 Rg6+ Qf6 Rb1 a1B Ba3 Be7 b8N Be6 Qf3 Rd8 Nc6 Bg8 Rb2 Qf2 Rhb1 h1B Bb4 Rb8 e5+ Kd7 e6+ Kd6 Ra2 c1B+ Rd2 Qf8 Rf6 Bcb2 Bf1 Bg2 Bd3 Bf1 Bc2 Bc4 Re2 Bb3 Rd2 Qf1 Rf2 Qc8 Nh3 Qg2 Kg5 f4 Kh5 Nf5 Ng5 Qf1 Qh1 f3 Qg2 Ne3 Qh1 Ng2 Ba3 Ne1 Qg2 Kc7 d6+ Kb6 d7 Ne4 d8N Qc7 d5 Qd3 Re2 f2 d6 f1Q d7 Nf2 Ndf7 Qf3 d8Q Nh1 Qd5 Qd6 Rf2 Qc5 Nd4 Ka5 Nc6+ Ka4 Bb4 Qcc3 Bd6 Qb4 Bc5 Ka3 Bd6 Bf8 e7 Ka2 e8R Be7 Bc5 Bd8 Bf8 Qc5 Qd7 Be7 Qb7 Q3e2 Qe4 Qf3 Qd5
4Bn2/1qQBnqbb/2N3Qq/1r3q2/N2pP1b1/1N3kRQ/Q2nR3/2K2N2 b - - 0 1 illegal: No possible last move, all moves rejected
3r1Bkr/n2B1pb1/Q2P1nqN/2Q2q2/R5QB/4r1Q1/B3Nq2/1RK1n1r1 b - - 0 1 illegal: No possible last move
K3Bq2/p2qPNq1/2k1rB1r/4qb2/nR4Q1/3RnBNQ/R2n4/3B1rR1 b - - 0 1 legal: proof: b4 b5 f4 c5 c4 e5 h4 d5 cxd5 exf4 a4 g5 axb5 gxh4 Ra4 c4 Ra1 Bc5 bxc5 Kf8 Ra6 Ke7 Ra1 Ke8 Kf2 Kd7 Kf3 f5 e4 h5 d4 h3 g4 h4 g5 h2 b6 h3 b7 c3 e5 c2 d6 Qe7 g6 Qe8 e6+ Kc6 e7 Bd7 g7 Na6 b8R Be6 d5+ Kd7 Rb4 Bf7 c6+ Kc8 c7 Kd7 Ra2 Rc8 Be2 Rh6 Na3 Nf6 g8B Ng4 Nb5 Nc5 Bb2 c1N Bf6 Be6 Bf7 Ne3 Qa4 Qg8 Bd1 Qg7 Ne2 N1b3 Rg1 h1R Ng3 h2 Qa3 Na4 Bg6 Rb8 Bh5 Rb6 Be8+ Kc8 d7+ Kb7 d6 Kc6 c8B Nd2+ Kf2 f3 d8R+ Bd7 Qd3 f4 Bb7+ Kc5 Bd5 Bf5 d7 Re6 Qf1 Kb6 Qh3 Kc5 Be4 Kb6 Nd6+ Kc7 Ke1 f2+ Ke2 f3+ Kd3 f1Q+ Kd4 f2 Bef3 Qe1 Nf7 f1Q Qg4 Nc3 Kc5 Qff2 Rg2 Rf1 Rg1 Na4+ Kb5 h1Q Ka5 Re5+ Ka6 Qh4 Qh3 Qd4 Qg4 Re4 Qh3 Kc6 Qg4 Kc5 Kb7 Re6 Ka8 Qd6 Rc8+ Qc7 d8Q Qee2 Rcb8 Qd7 Rb3 Qeb5 Rd3 Qb2 Rb4 Qe5 Ne4+ Kc6 Qb8 Qb2 Qh2 Qe5 Qhg2 Qf8 Q2h3 Qg2 Qgh5 Qg6 Q5g4 Qgg7 Ng3+
rnQ5/r1BP1K2/1N6/rRB3B1/1qnb4/1Np1B3/2kn1nR1/nNn1NQ2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 h5 Kd3 d6 a5 e5 g5 h6 c5 e6 c4 d7 a4 f6 c3 b6 a3 b5 a2 e7 Rh7 e8N Ra5 f7 Na6 b7 Nb8 b6 Ra7 Qf1+ Kc2 d4 Rh8 h7 Ra4 d5 Bd6 f8B Ra7 Rh5 Nf6 Nc7 Be5 d6 Bd4+ Be3 Qe7 d8B Nfd7 Ne6 Ne5 Nc5 Nc4 Nb3 g3+ Ke1 g2 Kf2 g4 Rb5 Rg8 h8Q Qe4 Bg5 g3+ Ke1 f2+ Ke2 Qe7 Kf3 Ra5 Kg4 f3 Kh5 Rg7 Ne2 g1N Nf4 g2 Nd3 Nh3 Qg8 Rh7+ Kg6 g1N Qh8 Ne2 Ne1+ Kb2 Qg8 Nc1 Qe6 Rh8 Qc8 Qe4+ Kf7 Rg8 Qg1 f1R Qh1 Rf2 Qf1 Rh2 Bfe7 Nf2 Bf8 Ra7 Bfe7 Rh5 Bf8 Nd7 b8B Qg4 Bc7 Nb8 b7 Qe4 Ng2 Kc2 Bfe7 Qc6 Bf8 Qc5 Bfe7 Qb4 Bf8 Na6 b8N Rgh8 Nd7 Nb8 Nb6 Rg8 N1d2 Rgh8 Rb1 a1N d7 Rg8 Bf6 Rgh8 Rg5 Rg8 Rg3 Rha5 Bfg5 Ng4 Bc5 f2 Qg1 f1N Ne1+ Kd1 Rg2 Nf2 Rb2 Rd8 Nb1 Nfd2 Qf1 Na6 Qa8 Qa3 Qb7 Rda8 Qc8 Qa4 Rg1 Nb8 Rg2 Ne2 Nc1 Qa3 Rb5 Qb4 Nf3+ Kc2 Nb3 Nc1 Ne1+
K7/R3bn1r/b2N2Qq/bB2kNQB/1b3B2/RB4nP/2N2p1N/q2q2q1 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 f4 e5 a4 d5 cxd5 b5 axb5 exf4 Bb2 a4 Bc1 Ra5 bxa5 Qd7 Bb2 Qe7 Bc1 Qd8 Kf2 Kd7 d4 Kd6 e4 g5 a6 c5 a7 f5 a8B a3 e5+ Ke7 d6+ Ke6 d5+ Kd7 b6 g3+ Kf3 g2 h3 c4 b7 a2 Qc2 c3 Na3 Nc6 Bb5 Be7 b8Q Qf8 e6+ Kd8 d7 Nf6 Bb7 Qh6 Qe5 Nh5 Qb1 Rh7 Nc2 Ng3 Ba8 Bd6 e7+ Kc7 e8B Ba6 Bh5 Nd8 Be3 Nf7 d8N Qf8 Bc1 Qh6 Nc6 Kd7 Qf6 Bb4 d6 Ba5 Qd8+ Ke6 Ne7 Ke5 d7 Bb4 Bd5 g4+ Kf2 f3 Bb3 f4 Nf5 Ba5 Qg5 Bb4 d8N Ba5 Na3 c2 Nb7 Bb4 Be3 c1B Nbd6 Bcd2 Qc2 Ba5 Qc6 Bdb4 Nc2 Bd8 Qe8+ Be7 Qeg8 Ba5 Q8g6 Bb4 Rd1 a1B Rd3 Bd4 Rc3 Bb6 Rc7 B6a5 Ra7 Bb7 Ne2 Ba6 Ned4 Nd8 Ra1 Nf7 Kg1 f2+ Kh2 f1Q Ra3 Qc4 Kg1 f3 Kf2 Qc7 Bc1 Qc4 Ke3 f2 Bd2 g1Q Nf3+ Kd5 Bc1 Qd1 Nh2 Ke5 Bd2 Qe6 Kd3 Qf6 Kc4 Ne2 Be3 g3 Bd2 g2 Bc1 Be1 Kc5 g1Q Kc6 Ng3 Be3 Bab4 Kc7 Ba5+ Kb8 Beb4 Ka8 Qa1 Nc8 Qd6 Bd2 Qdd4 Ncd6 Qd3 Be3 Qdd1 Bf4#
2B1Kb2/kRNN1RqB/5Qn1/1PB3b1/4Q1b1/2Qnp3/1B1n1q1r/2Q1bn2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 f4 d5 fxg5 f4 e4 dxe4 g6 Ra6 g5 Rd6 h3 Rd5 cxd5 Bxh3 Qc2 Bf5 Qd1 Bc8 Kf2 Kd7 d4 h5 b4 c5 b6 e5 b7 Kc7 d6+ Kb6 g7 c4 g6 a4 d5 a3 b5 a2 d7 e3+ Kf3 c3 Ke4 h4 Kf5 c2 Ke6 e2 Kf7 e1B d6 e4 Nc3 e3 Nf3 h3 Bb2 c1Q Ne5 f3 Nd5+ Ka7 Nc7 h2 Bh3 f2 Rf1 Qd2 Qc1 Qg5 d8Q h1N d7 Qh5 Qh4 Nf6 d8Q Qb4 g8Q Ne4 Nd7 Qg4 g7 Nc6 Qdf6 Qd2 Ke8 Ne7 Qb3 Ng6 g8B Qde2 Qbc4 Nd2 Q4c3 Qg5 Qe4 Rh5 Bhe6 Rh2 Bg4 Qh6 Bh7 Qg7 Rg1 f1N Bh3 Ne7 Rg6 Nf2 Rb1 a1B Rh6 Nd3 Be6 Nd5 b8B+ Kb7 Ba7 Qf2 Qec4 N5f4 Bc5 Ng6 Bg4 Nge5 Qe4+ Nc6 Nb6 Ka7 Be6 Nce5 Rg6 Bb7 Bc8 Bd5 Rh6 Be6 Rg6 Bg4 Rh6 Ndc4 Nd7+ Nb6 Qg5 Qd2 Q3c2 Ng3 Q1d1 Bf2 Bbd4 Bc3 Rb2 Be1 Qdc1 Nf1 Qb3 Qg2 Rf2 Qg1 Rf3 Qf2 Rf7 Ba1 Rd6 Ng6 Bf6 Be5 Qbb4 Bg3 Bb2 Bf4 Qf6 Bh6 Qbc3 Bg5 Bb4 Nc4 Rb6 Ncd2 Bd6 Nh8 Bc5 Ng6 Rb7#
bQ2Qk2/2nBqq2/Q4pb1/bq5B/1P1QqN2/r1R1N2K/4N2R/5rNb b - - 0 1 illegal: No possible last move, all moves rejected
2bR1B2/1bQ1Nkqr/1Npr2n1/1qQB4/7P/1q1r1Q2/1N1N4/R1qrQ2K b - - 0 1 illegal: No possible last move
N2K3R/P1rR3B/BQb2Q2/3n1q1n/N1q1q3/bB1Rpb2/k3R3/bqB5 b - - 0 1 legal: proof: g4 a5 e4 b5 f4 f5 c4 g5 fxg5 f4 g6 d5 cxd5 Ra6 b4 axb4 g5 Rf6 h4 Rf7 h5 Rf5 h6 Nxh6 exf5 Ng8 Bb2 Kd7 Kf2 Kd6 Kf3 Kc5 Kg4 e5 a4 h6 g7 e4 a5 f3 d6 b3 d4+ Kb4 d7 c5 f6 c4 Kf5 f2 Ke6 c3 g6 e3 d5 c2 f7 c1B a6 h5 d6 h4 a7 h3 Na3 h2 Ne2 Rh7 Ra2 Ne7 g8B Rg7 Nc4 Qc7 Qd4 Bb7 d8R Nd7 Nc3 Nf6 d7 Qc8 Na4 Bc6 Be2 Qa6 Kd6 f1Q Kc7 Qf5 Bf1 Bd2 Bc1 b2 Ncb6+ Kb3 Na8 b4 Qb6 Bc3 Be2 Rh7 g7 b1B Bd3 Ba1 Re2 Qab5 Rd1 h1Q Re8 Qbc5 d8R Nh5 Ba6 Bbe4 R1d3+ Qc3 R8d6 Qh4 R6d5 Bf3 Kd8 Qhe4 R5d4 Ng6 Rd6 Ngf4 R6d5 Bc5 f8Q Bd6 Qf6 Bf8 Nb2 Ka2 Na4+ Qc2 Bf7 b3 g8B b2 Be6 Rc7 Bh7 Ba3 Rd7+ Qb3 Bec4 Nd5 Rg8 Kb1 Rh8 Qc3 Bb3 Qcc4 Bd1 Ka2 Bc2 b1Q Bb3#
K2bQQ2/3rn3/5Pb1/3r1b2/1QB1B3/nN2N3/R1r1n1Bp/1rRB1Qbk b - - 0 1 illegal: No possible last move, all moves rejected
1K1Q1R1Q/2N2k2/2N2qrn/B1n2q1B/2nn3Q/P1n1N3/2b1pNR1/n1Q2n2 b - - 0 1 legal: proof: g4 a5 e4 b5 f4 g5 c4 f5 h4 Nc6 b4 fxe4 f5 d5 cxd5 axb4 Bc4 Bh6 Be2 Ra3 Bf1 Rf3 f6 Rf5 gxf5 g4 Bb2 Bg5 hxg5 Nb8 Ba3 Bd7 Bc1 Bc8 Kf2 e5 Kg3 h5 d4 c5 a3 e3 g6 c4 d6 c3 g7 e4 Kf4 h4 Ke5 h3 d5 g3 d7+ Kf7 Kd6 b3 Qd2 b4 Ba6 c2 Qh2 b2 Be2 g2 Bf3 b3 Nc3 b1Q Bd2 c1N Ra2 e2 Nd1 e1N Ba5 b2 Ne3 Rh6 Bh5+ Rg6 Qf4 h2 Nh3 g1N Qh4 Ba6 Nf2 Ngf3 Rf1 Nh6 g8N h1N Ne7 Ng3 Nc6 Qf8+ Kc7 Bd3 d8Q Nd4 d6 Nd7 Qc8 Nb6 d7 Nec2 d8Q Ncb3 Kb8 Nc5 Qcc7+ Qe7 Qcf4 Qf8 Qfg5 Nc4 Qgf4 Kg8 f7+ Kg7 Qc7 Na1 Qcc8 Qe7 f8N Bc2 f6+ Kf7 Ne6 Qd6+ Nc7 Qe6 Rg1 Nf1 Rg2 Qf5 Qh8 Qe1 Qcd8 b1N Rb2 Qc3 Rb7 Nce6 Ra7 Nc5 Ra8 Nf3 Qd1 Qce5 Qc1 Nd4 Qd8 Nc3 Qd5+ Kf8 f7 Qef6 Qd8+ Kg7 Ned1 e3 f8Q+ Kh7 Qfe8 e2 Ne3 Kg7 Qh8+ Kf7 Qc8 Na6+ Ka7 Qe7 Qd7 Nc5 Rd8 Qe4 Kb8 Qf5 Qd6 Qee6 Re8 Qff6 Qd8 Qef5 Rf8#
3Q1b2/K2N1B2/1RR1r1b1/pq1B1k2/NbQQN3/2q4Q/P3br1N/r3r2b b - - 0 1 legal: proof: f4 d5 b4 e5 e4 c5 bxc5 Nd7 g4 dxe4 Qf3 e3 Qe2 e4 Qd1 Ne5 fxe5 Ke7 Nc3 Kd7 Nb1 Ke8 Bb2 f5 Bc3 h6 Ba5 f4 Bc7 Ne7 Bb6 Qd4 Bd8 Nf5 Bg5 hxg5 gxf5 Qd8 Ke2 Ke7 h4 b5 c4 a5 d4 g4 c6 g5 c5 b4 h5 b3 f6+ Ke6 h6 b2 h7 g3 f7 g2 c7 g4 c6 g3 d5+ Kf5 e6 Ba3 f8N Ra6 e7 Bc5 e8B Rg8 h8Q Qe7 d6 Rg6 d7 Re6 d8Q Qg7 Nc3 b1B Q1d4 Bb7 Nd7 Bf8 Nf3 g1R c8N g2 c7 Rac6 Na4 Rc2+ Nd2 Qe5 Rh6 Qb5+ Qc4 Rh1 Bf7 g1Q Qd4 Qg7 Bg2 Rb2 Rg6 Bc2 Nf1 f3+ Ke1 e2 Kd2 e1R Kc3 e3 Rb1 f2 Nh2 f1B Bd5 e2 Rf6+ Kg5 Nd6 Bg6 c8Q Rd2 Rb3 Ra1 Rb4 e1B Kb3 Rf2 Ne4+ Kh5 Ka3 Be2 Kb3 Bc3 Ka3 Rhe1 Kb3 Qc5 Rb6 Bb4 Rc6 Qb5 Rb6 Re7 Rfc6 Kh6 Qb8 Qf6 Qg3 Re6 Qh3+ Bgh5 Nd2 Kg5 Ne4+ Kf4 Nb2 Qh8 Na4 Bg6 Nac3 Qh5 Nd2+ Re4 Bde6 Rff1 Rc7 Qbf5 Ka4 Qf3 Rc8 Bd5 Kb5 Rf2 Na4 Qc3 Ka6 Bc6 Ka7 Qb5 Qe8 Bd5 Rcc6 Kg5 Qc8 Re3 Qc7 Bh1 Bd5 Re5 Qc8 Re6 Ne4+ Kf4 Qhd3 Kf5 Qd8 Bf1 Qg3 Be2 Qh3+
B2K3B/R1p1n3/1qR2Q2/3NNQn1/rR1rP1n1/2r2n2/1NN2q2/2krR2q b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 Nc3 g5 Nf3 f5 Nb1 f4 Ng1 f3 h3 g4 Bg2 Bd6 Bf1 Bf4 gxf4 g3 Ra3 Be6 Ra1 Bg4 hxg4 Qc8 Ra5 Qd7 Ra1 Qd8 Kc3 Kf7 Kb4 Kf6 Kc5 h5 d4 a5 b4 h4 b6 c3 b5 a4 g5+ Kf5 d5 Ke4 b7 a3 f5 g2 f6 a2 b6 c2 f7 h3 f8N h2 d6 Nh6 d7 Ra7 g6 Ra3 g7 Nf5 g8N Qf6 d8Q Ra6 Nd7 Qh4 Na3 Qg4 Ne7 Ng3 Nd5 Rh4 Nc4 Ra4 Qf6 Qg6 Nde5 Nc6 b8R Ne7 Bb2 c1R b7 Rc3 e3 Rf4 Ne2 g1N Bg2 f1Q Nd4 Qf2 Qf1 Rh4 Rc1 a1R Nc2 Qh6 Re1 Rd1 Ra8 Rf4 b8R Rg4 Ra7 Rh4 Nc6 Rf4 Re2 Kd3 Rb4 Rd4 Kb5 Ne4 Re1+ Qe2 Ba1 f2 Nb2+ Kd2+ Rc4 Qg5 Ne5 Qg6 Qf5 Qf3 Rb4 Kc1 Qf6 Qh6 Qd3 Ng5 Qdf5 Qf4 Be4 N1f3 Rhg1 h1Q Rg3 Nf7 Rg6 Rca3 Kc5 f1N Kb5 N7g5 Kc5 Ng8 Kc6 N1h2 Kd7 Ne7 Kd8 Rb3 Qg7 Qfh4 Rc6 Rc3 Qgf6 Qf2 Qh8 Qf8+ Kd7 Nf7 Rf6 Rdd3 Nc6 N7g5 Nc4 Qh6 Kd8 Nd4 Nf4 Raa3 Bd5 Ng4 e4 Rcb3 Bc3 Ra6 Nb2 Ndf3 Re6 Rb6 Bg7 Rbc3 Ne5 Rd2 Qhf8 Qf6 Bh8 Rd4 Rd6 Ra6 Ba8 Qe6 Nd5 Ra4 Rdb6 Qc6 Q8f6 Qb7 Rd6 Qb6 Rc6
bk3RB1/3n2r1/2r1RbQ1/R3pn1B/2q2B2/1BrR3p/N1QN3P/1q1nK3 b - - 0 1 legal: proof: e4 c5 f4 g5 fxg5 b5 b4 d5 bxc5 dxe4 a4 a6 axb5 axb5 c4 Kd7 d4 Kc7 g4 f5 d5 e5 d6+ Kb7 g6 h5 g7 f4 g5 b4 g6 h4 d7 b3 c6+ Kc7 c5 f3 Bf4 e3 Qc2 h3 Ne2 b2 Nc1 e2 Nd2 b1Q Ra5 Ne7 g8Q Bb7 g7 Qc8 d8R Ra6 Rd3 Nf5 Bg2 Qe6 Rf1 Qc4 Qh7 Nd7 g8B Ba8 Qg6 Kc8 c7 Rc6 Bh1 Kb7 c8R Rh7 Re8 Rg7 Re6 Be7 Rf2 Kb8 Rf1 Rb6 c6 Bf6 Bg2 Rb3 Bh1 Rc3 c7+ Kb7 c8B+ Kb8 Kf2 e1N Na2 Ng2 Bb7 Nge3 Bd5 Nd1+ Ke1 Qc5 Bb3 f2+ Ke2 Qc4 Bf3 Kc8 Bh5 Kb8 Rg1 f1R Rh1 Rf3 Rf1 Qb5 Ke1 Rc6 Rdd6 Rfc3 Rf3 Nb6 Rfd3 Qc5 Rd7 Qc4 Rf7 Nd7 Rf8+
k2nnR2/8/1qNNP2q/r2BbRrr/1RQ3p1/1p3q1R/2BQ4/bKN1N3 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 f5 cxd5 h6 b4 f4 Ba3 Bf5 gxf5 Ra7 Bb2 Ra8 Bd4 axb4 Bf2 Ke7 Bh4+ Ke8 Bg5 hxg5 d4 Kd7 Kd2 Kc8 Kc2 c5 h4 b5 a4 Kb7 e4 f3 e6 c4 a5 f2 d6 c3 d5 g6 f6 g4 e7 g3 e8N g2 h5 g5 a6+ Ka7 e5 g4 e6 Nh6 f7 Qc8 d7 Qc7 d8R Nc6 d6 Rc8 d7 Bg7 f8R Nf7 h6 Ra8 h7 Qb6 Bd3 f1Q Nf3 g1B Rb8 Bh2 d8N Nd6 Ne1 Bhe5 Nd2 b3+ Kb1 b2 Rh3 b4 Ra5 Qf3 Nb3 Bgf6 Qd2 c2+ Ka2 c1Q Bc2 Rg8 h8Q b1R Rb5 Ba1 Rf5 Rg5 Qh6 Rh5 Qhf4 Bfe5 Qc4 Rg5 Qf2 Qcf4 Qd2 Rh5 Nc1 Qh6 Ned3 Rb3 Ne1 Ra3+ Kb1 b3 Qf1 Ra5 Qc4 Qbf2 Rb4 Qb6 Rg5 Rc8 Rgf5 Ka8 a7 Rc7 Qg5 Rg7 Qd2 Nb8 Nc6 Rgg5 Nf6 Ne8 Ne4 Na6 Nd6 Nc5 Qf1 Nb7 Qc4 Nd8 Nf7 Kb7 a8B+ Kc8 Nd6+ Kc7 Ne7+ Kb8 Bd5 Ka7 Nc6+ Ka8 Bd3 Beb2 B3e4 Be5 Bc2
1Qrn1B1R/1R6/RB2pb1K/1R2Nq2/1P2pN2/1Bn2rn1/5q2/1krbB1Q1 b - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 f5 g4 h5 gxh5 a5 e4 fxe4 b3 a4 Bg2 axb3 Bh3 Bf5 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 h4 Kd4 f4 b2 h6 g6 d6 c4 d7 c3 f5 e6+ f6 c2 h5 Ba6 h7 Ra7 h6 Rc7 Rh5 Qe8 d8R+ Qd7 f7 Nf6 Bc4 Nc6 Na3 b1N Bb3 Kd3 Rb8 Nc3 Nh3 Rc8 Rb7 Bg7 f8B Qf7 Qg1 Nd8 Nc4 Rg8 Bb2 c1R h8R Bb5 h7 Ba4 Bd6 Rf8 Ne5+ Ke2 d4 Kd2 Bd1 Bb3 d5 Bc2 Nf4 Bb3 Rh1 Nh5 Ra6 Ng3 Rh5 Bf6+ Kh6 g5 Bc2 Ba4 Bb3 g4 Bc5 Qe8 d6 Qb5 d7 Rf7 Bd5 Kc2 Bf8 Kb1 Rf5 Bd1 Bb3 Nf1 Ba1 g3 Rh5 g2 Bb2 Nd5 Bc3 Ng3 Be1 Nc3 Rf5 Nc6 d8Q Qf1 Qc7 Nd8 Qb8 Qb5 Nd7 Qf1 Rfb5 Qf3 Ne5 Qg4 Bc5 Qf5 Bb6 Rf8 Rg8 Rf7 h8B Rf8 Bg7 Rf7 Qh1 g1Q Bf8 Qf2 Qh2 Rd7 Qg2 Rd3 Rh8 Rf3 Qg1
nn1KbR2/rRp1rq2/2B5/1QQR4/4q1Qp/b2N2B1/Q2P1bN1/1r1k1R2 b - - 0 1 illegal: No possible last move
2r4r/N3R1q1/RQN4r/1b1R1PNN/2b1K3/n1B1p1Bp/4k1nn/2QR2r1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f5 axb5 fxe4 Ra5 g4 Ra6 Qd6 Ra1 Qd8 h4 Bh6 f4 Bb7 Be2 Kd7 Bf3 gxf3 g4 Na6 g5 Bc8 g6 Bg5 hxg5 Nb8 Qb3 Ke8 Qc2 Qd6 Qd1 Qd8 Kf2 Kd7 Ke3 Kd6 b4 a5 d4 e5 b6 c5 b5 h5 f5 a4 g7 c4 b7 a3 g6 c3 b6 h4 Rh3 a2 Rh1 c2 Nh3 f2 Bb2 c1R Ng5 f1B Nc3 Nd7 b8Q+ Qc7 b7 Ngf6 g8N h3 g7 Rh6 Qc2 Be2 Rd1 Nb6 Qd2 Rc2 Qc1 Be6 Qd8+ Bd7 b8B Bc4 Ne7 Ba6 g8N Bc4 Ba7 Rc8 Nc6 Rg2 Bb8 Rg1 Nge7 Rh8 Na7 Rh6 Nec6 Ng4+ Kd2 Nh2 Ke3 Rh8 Ne2 Rh6 Nf4 Rh8 Rb1 a1R Bc3 Ra3 Ra1 Ra6 Kd2 e3+ Kc2 e2 Nh5 Ba2 Kd3 e1N+ Ke4 Ng2 Re1 Bb3 Re3 Nc4 Re2 Rb6 Ra6 Na3 Qf6+ Be6 Re1 Bc4 Re3 Kd7 d6 Bb5 Re1 Bec4 d5 Ke8 Qh6 Qg7 d7+ Kf8 d6 Kg8 Nf3 Kf8 d8R+ Kf7 Nb4 Rbc6 d7 Ke7 Qhe3 Rch6 Nbc6+ Kf7 Nf4 Kf6 Qb6 Rg8 Re8 Rf8 d8R Rfh8 Nh4 Kg5 Red1 Kg4 Nf3 Kg3 Ng5 Kg4 R8d5 Kg3 R5d4 Kf2 Nh5 Ke2 Re7 Bd3+ Kd5 e4 Bf4 e3 Bg3 Bdc4+ Ke4 Qh7 Rd8 Qg7 R8d5
2R2Nq1/b4B2/2r1Nkp1/Pn1K4/1QBR1rpB/1b2b2Q/b2r3N/1N1n3B b - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 e5 b4 axb4 f4 g6 fxe5 Bd7 g5 Bc8 h4 Qf6 h5 Qg7 h6 f6 hxg7 fxg5 Rh2 g4 Rh3 Ra7 Rh1 Ra8 Kf2 Ke7 Ke3 h5 Kd4 b5 e4 h4 a4 h3 a5 h2 e6 b3 d6+ Kf6 d7 c5+ Kd5 b4 d8N b2 d4 c4 e7 b3 e8Q c3 Qd2 c2 Bc4 Bc5 Ra4 Ba7 Nf3 Na6 Ne6 Nh6 g8B Nf5 Bf7 Rf8 Qb4 Bd7 Rd1 h1Q Nh2 Rd8 Bf4 c1B Bg3 Bh6 Rc1 Be3 Rc3 Qf3 Rc2 Qf4 Bh4+ Qg5 Rc1 Rc8 Rc2 Rc6 Qeb8 Bc8 Qg3 Bb7 Qh3 Ba8 Nd2 b1B Rc3 Ba2 Nb1 b2 Rc1 Nc5 Rc2 Nd6+ e5+ Kf5 Rc1 Nd3 Rc3 Rd8 Nf8 Nf2 e6 Nd1 e7 Qf4 e8B Nb5+ Nd7 Qb8 Rc2 Rdc8 Nf8 Rf6+ Bc6 Bb3 Nc3 b1R Rc1 Ra1 Nb1 Ra2 Ra3 Qf4 Bg8 Bc2 Rd3 Re6 Bb3 Qd6+ Kc4 Rc7 d5 Re4+ Rd4 Rf4 Be6+ Ke5 Bg8 Qe7 d6 Qh7 Bf7 Qg8 d7 Kf5 d8N Ke5 Bf2 Kf6 Nde6 Rb2 Ba2 Ba4 Rc3 Rd2 Rc2 Rd7 Rc3 Rd6 Bh1 Rb6 Be1 Bf3 Kc5 Be2 Bad5 Bc4 Rc2 Ba2 Bh4+ Ke5 Bb3 Kf5 Kd5 Ra6 Rc7 Rc6 Bc4 B4b3 Bg3 Kf6 Rc8 Qg7 Be1 Qg8 Bh4+
1q3r2/B5NN/Pb4n1/nr2k2p/2Rp2B1/nQ3N1R/3bnQ1K/1b1B1BN1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 b5 hxg5 c5 d4 cxd4 b4 axb4 cxb5 Ra7 Bc4 Ra6 Bf1 Ra8 g4 Kf7 f4 h5 Kf2 d5 Kg3 e5 a4 d3 f6 Ke6 f5+ Kd6 f7 e4 a5 d2 a6 b3 g6 e3 f6 b2 g5 e2 g7 e1B+ Kh2 Qd7 g6 Nh6 g8B Qg4 g7 Ke6 b6 Nf5 b7 Qf3 Qc2 d1N Ra4 Nc3 Rc4 Ne7 Qf2 Ke5 Be3 Bf5 Nd2 b1N Ba7 d4 Bh7 Bc2 g8B Ne2 Bf5 Qb3 Bg4 Na3 Bh7 Bb1 Bc2 Bh6 f8N Ng6 f7 Nc6 Nh7 Na5 f8N Rb8 Ne6 Rhf8 Ng7 Bg5 Bd1 Bd8 Be6 Bb6 Ndf3+ Kd6 Bg4 Bd2 Kg2 Qb5 Rh3 Qe8 Ne1 Ke5 Kh2 Rc8 b8Q+ Rc7 Qa8 Rc5 Qaf3 Rb5 Qb3 Qb8 Nef3+
BNN2Nqn/b7/pp1R1q1R/1P1R1nkb/2Qrb3/1r1Bb3/4R2K/5N1Q b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 a4 b6 b3 Qd7 a5 Qd8 Bb2 Ba6 Bd4 Bc8 axb6 Bg7 b7 Bf8 Bb6 cxb6 g4 Kf7 d4 Kf6 f4 e5 Kf2 h5 Kg2 e4 g5+ Kf7 g6+ Kf6 b4 a6 g7 e3 d6 e2 d7 e1B b5 h3+ Kh2 h4 d5 Bc3 d6 Be7 Bd3 Be1 Ne2 Rh6 Nbc3 Bd2 Ng3 Nc6 b8N Nd4 Nf1 Be3 Ra2 Rg6 Qe2 Nh6 g8B Rg3 Bd5 Qg8 d8R Nf7 d7 Nh8 Bf3 Ra7 Ba8 Bd6 Qe1 Rc7 Re2 Rc4 Qa1 Ra4 Qa2 Bb7 Qc4 Be4 Nd5+ Kf7 f6 Kg6 f7 Nf5 Qb3 Rd4 f8Q Bf3 Qb1 Bh5 Qf7+ Kh6 Ne7 Bc7 Nbc6 Bb8 Nc8 Ba7 Qc4 Kg6 Nb8 Kf6 Rg1 Rf3 Rg7 Rg3 Rh7 Kg6 Kh1 h2 Qd1 Rf3 Kg2 h1B+ Kh2 h3 Qb1 Kf6 Qe1 Nh4 f5 Kg5 f6 Nf5 f7 Rg3 f8N Be4 Rh6 Rf3 Re8 Rg3 d8R Rf3 Kh1 h2 Re5 Rd5 Ng3 Qh7 Bb1 Qg8 Rg2 Bf2 Rdd6 Rb3 Qef1 Rdd3 Red5 Be3 Qf3 Rd2 Rf2 Rdd3 Kg2 Rd2 Kh3 h1Q+ Rh2 Rd4 Bd3 Qa1 Qh1 Qc3 Nf1 Qa1 Qc5 Rc4 Re2 Qf6 Kh2 Rd4 Qc4
1Q3r2/1K2NBp1/6Nb/BB1npn1R/1bq1Bn2/r2R4/kNq1P1Nn/3Q4 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 f5 b3 b5 axb5 fxg4 b6 a5 Ba3 a4 Bc1 a3 Qd3 Ba6 Qh3 Bb5 Qxh7 Ba4 bxa4 Ra5 Qe4 Ra7 Qh7 Ra8 Kd2 Kf7 Kd3 Ke6 Ke4 d3 f4 g3 c4 d6 h4 d2 a5 d1N h5 g2 f5+ Kd7 Kd5 e5 c5 a2 h6 Nb2 b7 Qe8 a6 Nd1 f6 Qe7 f7 Qf6 a7 Ke7 c6 Nd7 b8Q Nb2 c7 Qe6+ Kc6 d5+ Kb7 Kd6 c8B+ Kc5 Rh5 Kc4 Nc3 Kb3 Qd3 d4 h7 Ne7 Nf3 g1N Bh3 Nf5 Nh4 Nf3 Ng2 Nh2 Bd2 Bb4 f8N Nb6 Rd1 a1B Ng6 Rf8 h8N Qc4 Bd7 Nd5 Na4+ Ka2 Be1 Bd2 Ne7 Bh6 Qc2 d3 Ba5 d2 Nhg6 Qb4+ Bb5 Qc4 Qc1 Nd3 Nb2 N3f4 Bg4 Nd4 Be6 Nf5 Re1 d1Q Bf7 Qdc2 Rd1 Qc5 Rd3 Q5c4 Nd1 Bd4 Nb2 Bc5 Qd1 Bb4 Qc7 Rad8 a8B Rd6 Qb8 Ra6 Bc7 Ra4 Ba5 Ra3 Ka7 Nc3 Be4 Ncd5 Kb7
2BRq2r/1B2n3/R1QNpR1q/1K5n/3N1nN1/R1p1P2b/q2b2Nb/1Q5k b - - 0 1 legal: proof: b4 a5 h4 g5 c4 d5 cxd5 b5 a4 f5 Ba3 g4 axb5 Ra7 b6 Ra8 b5 Ra7 Bb4 axb4 Qb3 Ra3 Qd1 Re3 Ra7 Re5 Ra1 f4 g3 Rg5 hxg5 fxg3 d4 Kf7 Kd2 Kg6 Kd3 Kf5 Kc4 Ke4 f4 c5 g6 h5 e3 b3 b7 g2 g7 b2 d6 h4 b6 g3 d5 h3 d7 h2 f5 Rh3 f6 Nh6 g8B Ng4 d6 Rh4 f7 Nh6 Ne2 Kf3+ Nd4+ Kf2 Qc1 g1N Na3 b1Q Bg2 Ng4 Nab5 Qc7 d8N Ne2 d7 Qc6 Ra6 Rh8 N8e6 Nf6 d8R Qe8 Nf4 Nc6 b8N Bf5 Rd1 h1Q b7 Qh6 Rd3 Bh3 Nd7 Nh5 b8Q Qb2 Bf3 g2 Ne5 g1B Ng2 Bh2 Rda3 Nef4 Qb6 Qa1 Qb1 Qb2 Bg4 Qd2 Bc8 e6 Bh7 Qb2 Be4 Qa2+ Rb3 Bd6 f8R Ne7 Rf6 Bc7 Qd6 Ba5 Beb7 Bb4 Qc6 Bd2 Qb2 Kg1 Nd6 Kh1 Kb5 c4 Ng4 c3 Rba3 Rh7 Qb3 Rh8 Qb1+
n1q2B1n/R4nn1/b2Q3P/QQp1RN1q/3R4/K1k2r1b/1p2RQ1n/4NB2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Nh3 exf4 Ng1 h4 Nf3 g5 Qb3 b5 Qd3 Bc5 Nc3 Rh5 gxh5 g4 Ng1 g3 Nb1 g2 Qb3 Bf2+ Kd1 Bg3 hxg3 Ra6 Ke1 Rh6 Qd1 Rh8 a4 Kd7 d4 Kd6 Kd2 f5 Kc2 c5 Kb2 f3 e4 b3 a5 b4 a6 h3 e5+ Kc7 e6 Kd6 g4 f4 e7 h2 e8Q f2 a7 f3 a8R Nd7 g5 Ne7 g6 Ba6 g7 Rf8 g8Q Nb6 Ne2 g1N Ra7 Ng6 Bh6 Nh3 Ra2 Qc8 Qgf7 Na8 Qb5 Nh8 Nd2 Ng5 Ng3 Ne6 Rg1 h1Q Bg7 Qh2 h6 Qh5 Rh1 Nd8 Rh4 Ne6 Re4 Nd8 Qf5 Rf6 Re5 Ndf7 Qfd3 Rf4 Q1c2 Rf5 Qa5 Rf6 Qdb5 Rf4 Bh3 f1N Bg2 f2 Nf3 Rf6 Ne1 Ne3 Bf1 Rf3 Qce2 Nf5 Bf8+ Ne7 Bh3 f1N Qf2 Nh2 Bf1 Qe6 Kc1 Qd7 Rae2 b2+ Kc2 b1B+ Kb2 b3 Ka3 b2+ Qd3 Qc7 Nf5+ Kd7 d6 Kc6 d7 Qc8 d8Q Ba2 Ng2 Be6 Ne1 Nd5 Qf6 Ndc7 Qg6 Ne8 Qgg3 Qc7 Qf4 Ng7 d5+ Kd7 d6 Kc6 d7 Qc8 d8R Bd7 Qac3 Be6 Qd6+ Kb5 Q4e3 Bd7 Qcd2 Kc4 Qa5 Rf4 Qeg3 Be6 Qgg1 Bd7 Qb5+ Kc3 Qgg6 Be6 Qc7 Rf3 Rd4 Bd7 Qgd6 Be6 Ng3 Bg4 Nf5 Bh3 Qca5#
k4rn1/bN2qP2/q4NbB/1R2QpBr/r1B5/1r3rN1/1BpK3R/Q2N4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 f5 e5 Nd7 f4 Ndf6 exf6 e5 Ke2 exf4 Kf2 Bd7 Ke1 Bc8 d4 Kd7 b4 c5 g4 Kc7 g5 Kb8 g6 a5 d6 h5 d7 a4 g7 h3 f7 f3 b6 h2 d5 h4 d6 f2+ Kd2 a3 b7 h3 b5 a2 Bc4 f1R Nc3 Qe7 d8N Rf3 d7 Ra4 Rb1 a1Q Bb2 Ka7 b8B+ Ka8 b6 Bb7 Bf4 Bc6 Bd5 c4 Nge2 Rh5 Ng3 Bb7 Rf1 h1R Rf2 h2 Bh6 Rg1 Re2 h1R Rh2 Re1 Qc1 Ree3 Nd1 Rb3 Qc3 Bc6 Nb7 Rg1 d8B Qa2 Qe5 c3+ Kc1 c2 Bc4 Be4 Kd2 Bd3 Qc3 Be2 Qe5 Qea3 Bdg5 Bc5 Ne4 Rg4 Ng3 Re4 Qd4 Re8 Qg1 Rf8 Qh1 Ne7 g8N Bf2 Nf6 Ng8 Qf1 Qe7 Bd4 Rbe3 Rb5 Rb3 Bb2 Bd4 Nf2 Qaa3 Qa1 Qad6 Nd1 Qc6 Rd5 Qb5 Re5 Qa6 Rb5 Rfc3 Nd8 Rh4 Rb4 Bh5 Rb5 Bg6 b7+ Ka7 Ne6 Rf3 Nc5 Kb8 Nd3 Ba7 Nc5 Kc7 b8Q+ Kc6 Qf4 Rh5 Qd4 Kc7 Nb7 Kb8 Qd5 Ka8 Qe5
2kq2nQ/nrQqp1K1/1q5Q/1qbq2R1/QPBB4/4p2R/1bN1R1N1/5R2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 g4 fxe4 f4 b5 axb5 a6 f5 Bb7 f6 Bc8 h3 g5 Qf3 a5 Ra4 Ra7 Qe2 Rc7 Ra1 Rc5 Qd1 Rf5 Bd2 Bb7 Bc1 Bd5 Ne2 Bf7 Ng1 Bh5 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Bg7 Bc4 Bh6 Bf1 Bf8 Kd2 h5 c4 d5 b4 Kd7 f7 e3+ Kd3 g2 b6 a4 f6 a3 g5 a2 c5 h4 c6+ Kc8 g6 h3 g7 h2 b7+ Kc7 Nh3 g1B Qa4 Bf2 Na3 Bg3 Bb2 Bd6 Nc2 Bc5 Re1 a1Q Nf4 Rh5 Ng2 Qa2 Qa8 Qa5 Re2 Qb6 Ba1 Qe8 Qa5 Kd8 c7+ Kd7 c8R Nc6 b8Q Na7 Rg1 h1Q Qa4+ Nb5 Rc6 Na7 Qe5 Qh3 Rh1 Qf3 Rh3 Rh8 Re6+ Kc8 Qh2 Qg4 Re5 Qgd7 Rg5 Rh5 Rg6 Re5 Rg5 Re6 Qf4 Rc6 Bb2 Rc7 Qd6 Rb7 Qg3 Nh6 g8Q Bg7 Qh8 Ng8 f8Q Qed8 f7 Be5 Qe1 Bf6 Qc3 Qdb5+ Qc4 Be5 Qfh6 Bg7 f8R Be5 Na3 Bf6 Kc2 d3+ Kb3 d2 Bd4 d1Q+ Nc2 Qb1+ Kc3 Qa2 Kd3 Be5 Ba1 d4 Ke4 d3 Kf5 d2 Bd4 Bf6 Kg6 Be5+ Rf6 d1Q Kg7 Qdd7 Qe6 Qd5 Qd6 Bg3 Rff5 Be1 Qf4 Bc3 Rf6 Bb2 Qd6 Kd8 Qc7+ Ke8 Rf7 Qd8 Ref2 Qg4 Bc4 Qgf5 Qf4 Kd7 Re2 Kc8 Qg3 Qg4 Rf1 Qgd7 Qc7+
Q2r1Rr1/2Q3Bk/1Nq1qb1N/1p4pr/Q1n3PR/5q1n/K1BQ4/3B1Bq1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 h5 Be6 d4 Bf7 cxd5 Bg6 hxg6 c5 Ba6 cxd4 Be2 Nd7 Bf1 Nb8 Kd2 h5 Kc2 e5 Kb2 b5 f4 b3 g4 d3 a4 e4 d6 e3 a5 h4 f6 e2 f5 e1R a6 d2 a7 h3 g7 Kf7 d7 h2 Nc3 Ne7 Be2 Kg8 f7+ Kh7 g8B+ Kh6 f6 Qc8 d8Q Qb7 Nf3 Nc8 Qc7 Nb6 Na4 Bc5 Nd4 Qa6 Bh7 Nd5 Ra2 Qd6 Nb6 Nf4 Qc2 Rg8 f8Q+ Rg7 f7 d1Q Qg8 Nc6 f8Q Na5 Qgc4 Qe6 Qa4 Nc4+ Kb1 Re8 a8B b2 Baf3 Be7 Ra3 Rg1 Ka2 Rg2 Rf1 h1Q Qd2 Rh2 Bc2 Rh5 Nf5+ Kh7 Nh6+ Rg6 Rd3 Rg8 Rf2 Qdf1 Rh2 Qd1 Rh4 Nh3 Bg2 Qdf1 Rg3+ Qff5 Rf3 Qfe4 Rf5 Q4c6 Bef3 Ra8 Qfd8 Qf1 Rf8+ Qd3 Qdc8 Rb8 Qca6 Rd8 Qa8 Qdf5 Kb3 b1Q+ Bb2 Qa1 Bg7 Qg1 Bf1 Bf6 Ka2 Qd3 Bfd1 Qdf5 Bb3 Qff3 Bbc2+
1B1Rr2N/q1B1N3/2b3Pr/1B2KN1q/Q3p1p1/n3RN2/r4Q1r/kB1b1b2 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 a4 fxe4 h4 b5 axb5 Nc6 Qe2 Nd4 Qd1 Nf5 gxf5 g4 d3 Bh6 d4 Bg5 hxg5 cxd4 g6 e3 Ke2 e5 Kd3 Ke7 Ke4 Kd6 b4 a5 c4 h5 f6 d3 f5 e2 b6 e1R+ Ne2 h4 b5 Kc5 f7 Kb4 f8Q+ Ne7 b7 h3 b8N h2 c5 d2 b6 a4 f6 a3 c6 a2 b7 Qa5 c7 Rh6 f7 d6 Qc2 d1R Bf4 Nd5 Nd2 Ka3 Nc6 Ne3 b8B Ba6 c8B Nc4 Bf5 Rb1 Rg1 Rb2 Rd1 a1Q Rg3+ Ka2 Qe8 Ra7 f8N h1B+ Rf3 Bb5 Ne6 Ra6 Ned8 d5+ Kd3 d4 Ke4 d3 Nf7 Ra7 Nh8 Bg2 Kd5 Ra8 Ng3 Bh1 Nb3 d2 Nbd4 Bg2 B1d3 Bf1 Qd7 Re4 Re3 Ra7 Nf3 Ra8 Rc1 d1B Qe2 Ra6 Rc2 Ra8 Rd2 Rc2 Qe8 Qd4+ Ke6 Ka1 Qh2 Ra6 Be2 Qdb6 Rd8 Qa7 Bd3 Re2 Qg1 Reh2 Qf2 Bba4 Bb1 Qd5+ Kf6 Bb5 Bd7 Ra2 Kf5 Na3 Kf6 Rc4 Kf5 Rc5 Kf6 e4 Bfc7 Qh5 Nf5 Rd5 Ke6 Rd6+ Ke5 Rf6 Rb3 Rf8 Ne7 Rg8 Re3 Rf8 Bc6 Rg8 Qd7 Re8 Qd4+ Rb2 Qa4 Ra2 Bd5 Bd7 Bc4 Bc6 Bb5
Q1RN1K1R/N2b4/qN4p1/1BR2Qbr/bq2n1kb/3pn3/1P4qB/2R1N3 b - - 0 1 legal: proof: e4 c5 g4 h5 d4 cxd4 a4 f5 exf5 b5 axb5 hxg4 Bd2 a5 Bc1 Ra6 bxa6 Qb6 Be2 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 d5+ Kc5 a4 f4 g6 c4 d3 h4 a3 h5 d2 h6 d4 a7 a2 a8N g3 h7 g2 Nc3 Qe8 Qa4 d1B Nb5 Bf3 Nb6 Bd1 Nf3 g1B Na7 Bf2 Ne1 Nh6 Rh5 e5+ Kd5 e4 c5 e3 c6 e2 c7 Bg7 Kd6 Bd7 c8R Qe4 Bd2 Ng4 Rac1 a1Q Ba5 Rd8 h8R Bh4 Qc6 Qh1 Qa8 Bh6 Bd2 Qf3 Be3 Bb3 Bg1 Bba4 Bh2 Ne3 Rg5 Qg2 Rh5 Kf7 f6 Na6 Rhc5 B6g5 f5 Rg8 Nc2 e1Q Bb5 Qb4 Ne1 d3 Rb8 Be8 Rc8 Kf8 f7 Kg7 f8N Kf6 Ne6 Bd7 Nd8 Rg7 Qe4 Rh7 Qa8 Rh5 Bg3 Bh6 Bh2 Kg5 Ke7 Kg4+ f6 B6g5 Kf8 Qaa3 f7 Qa2 Kg7 Qe6 f8Q Qec4 R5c6 Nc5 Qf1 Qe6 Kf8 Ne4+ R6c5 Qc6 Qf6 Qb7 Qf2 Qa6 Qf5+
5b1q/N3B3/1BpQrq2/q1b1N1p1/1nN2P2/1K2R1Nr/1Q1RqBBk/1b6 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 b4 h5 g4 hxg4 Qa4 a5 Qd1 a4 Bg2 Nc6 Bf1 Na5 bxa5 Rh3 Qb3 Rh5 Qd1 Rh8 f4 Kf7 h4 Kg6 d4 Kf5 Kd2 e5 Kc2 g5 b6 c6 d6 g3 a6 a3 b7 a2 b8N g2 d5 e3 d7 e4 a7 e2 d6 Kg4 h5 Kg3 h6 e1B h7 e3 Rh2 e2 Be3 Qf6 d8B Bg4 d7 Qd6 Nc3 Qd5 Nb5 Bf3 Bdb6 Bf2 d8B e1Q Be7 Nf6 Nd7 Re8 a8N Qe2+ Kc3 Qe5+ Kb3 Nd5 Na7 Nb4 Qd6 Qf6 Re1 a1Q Ne5 Be4 Bec5 Bb1 Bd4 Rg8 h8Q Qa5 Qg7 Rh8 Bdc5 Qf3+ Re3 Rh3 Bd4 Kh4 Ne2 g1Q Ng3 Qe2 Bg2 Qh1 Nc7 Bg1 Ncb5 Bf2 Na3 Bg1 Bed8 Re6 Be7 Bf2 Nac4 Bg1 Bc3 Bf2 Be1 Bg1 Rc3 Bc5 Bf2 Qg1 Be1 Qd4 Re3 Qda1 Bf2 Qd4 Qg6 Qh8 Qc2 Qda1 Ng4 Qaf6 Nge5 Qf1 Rh1 Qe2 Qf5 Rh2 Rd1 Rh1 Qc2 Rh2 Bd5 Kh3 Qb2 Rh1 Rd2 Rh2 Rf3 Kg2 Be4 Rh3 Re3+ Kh2 Bg2
5B2/1bK1b2p/1R1N1qb1/3b3B/kQNnB1qN/4RrP1/2p2r2/2NBqQ2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qb3 a4 Qc2 Nc6 Qd1 Na5 bxa5 Qd6 Nh3 Qf6 Ng1 Qd8 Kf2 Kd7 Kf3 f5 e4 c5 d4 h3 b6 c4 b7 a3 b8Q a2 d6 Kc6 a6 h2 g3 c3 d5+ Kc5 e5 c2 a7 Bg7 e6 Bf8 e7 Qe8 d7 Nh6 d8N Ng4 d6 Qf7 e8B Qd7 Na3 Ne3 Ne6+ Kc6 Ng7 Kc5 Be2 Be7 Qf1 Rf8 Rb1 a1Q Rb6 Qf6 Bh5 Ba6 Bd1 Bb7+ Rc6+ Kb4 Nc4 Qde6 d7 Ka4 Ba3 Rf7 Qd6 Raf8 d8N Qd7 a8B Qc8 Ke2 f3+ Kd3 f4 Ke4 f2 Nf5 f3 Nh4 Nf5 Kd5 Nd4 Ne2 Qg4 Rg1 h1B Nc1 Bg2 Kc5 Bh1 Kb6 Bg2 Kc7 Bh1 Qe1 f1Q Rb6 f2 Qf4 Qfe2 Qf1 Qe1 Bb4 Bbd5 Nb7 Bhe4 Nbd6 Bg6 Qg2 f1B Ba3 Be6 Be4 Bd5 Qh3 Be2 Qhf1 Bf3 Rg2 Bb7 Re2 Bh1 Re3 Bg2 Bf5 Bgd5 Bd3 Qe5 Qe4 Rf2 Qf4 Rf3 Be4 Qf6 Qh6 Rf2 Nc8 Qfe6 Reb3 Qef5 Qd2 Bg5 Re3 Qe5+ Bd6 R8f3 Qc3 Qef5 Bf8 Be7 N8d6 Qf6 Qb4+
6B1/rR2nbpB/b3q1NB/KQq2P1N/1n1p2k1/1R1B4/Q1RR4/nn2q3 b - - 0 1 legal: proof: e4 f5 d4 c5 g4 cxd4 a4 h5 Bg2 hxg4 Bh3 b5 axb5 a6 Bf1 f4 Bc4 e5 Qf3 a5 Qe2 Bb4+ Kd1 Bd2 Qe1 Be3 Bf1 Ra6 Ke2 Rf6 Qd1 Rf5 exf5 e4 Ra4 Bd2 Ra3 e3 Kd3 e2 Ra1 Be3 fxe3 Qf6 Kd2 Qd8 c4 Ke7 h4 Kf6 b4 e1N e4 d5 e5+ Ke7 b6 d3 Kc3 g3 c5 g2 c6 a4 b7 d2 b5 a3 Kb4 a2 e6 Kf6 c7 d4 h5 Kg5 e7 f3 e8B f2 b6 Qe7+ Ka5 Nf3 h6 Qf7 h7 Ne5 Nf3+ Kf4 Qc2 g1Q Nh4 Qd7 Bg6 Kg3 Bd3 d1B Nc3 f1Q Nd5 Qe2 Bh6 Qd6 Rh2 Qf3 Nf6 Qgh1 Nh5+ Kg4 Rb1 a1N Rb3 Qe3 Rd2 Nf3 Qa2 Na6 b8Q Qee6 b7 Ne7 Rc2 Rf8 h8R Nd2 Bh7 Qhe1 Ng6 Nb1+ Rd2 Rf7 Rf8 Bd7 c8B Bb5 Bd7 Bc2 Rc8 Nb4 Be8 Bd1 Rcc2 Qc5 Bc6 Be2 Bd5 Bf1 Qe8 Ba6+ Qb5 Bg2 B5c4 Bd5 b8R Nc8 Be4 Ra7 Rb7 Ne7 Bcd3 Bc4 Bd5 Qed6 Bdg8 Bf7 Ra3 Qde6 Rb3
1n1q2n1/qb1P1R1Q/3N2BN/1q1B1Rp1/NR4Nq/3p1kr1/Kn2R2r/6Q1 b - - 0 1 illegal: No possible last move
2q4B/3kNQ1Q/Rpb4K/3b2n1/2Nb1B1N/Q2rbnbb/1p3N1P/2RQ4 b - - 0 1 legal: proof: d4 a5 g4 d5 c4 h5 gxh5 e6 cxd5 Qd7 b4 axb4 d6 Qd8 d7+ Ke7 e4 Kd6 f4 Rh6 d5 Ra4 f5 Rh8 e5+ Kc5 Bg2 Ra3 Be4 Rg3 d6 Rg6 Bd5 exd5 Bb2 Re6 fxe6 Kb6 Bc1 Kc6 Ke2 g5 Ke3 f5 a4 b3 e7 g4 Kf4 b2 Kg5 b6 h6 d4 a5 g3 h7 f4 e6 d3 a6 d2 a7 f3 a8N f2 Ra5 f1B Qa4+ Bb5 Nc3 d1B Ra7 g2 Ra6 Bf3 Qa3 Nf6 e8Q Bd5 Nf3 g1B e7 Bd4 Nh4 Ne4+ Kh5 Bfg7 Nd1 Bge5 Qf7 Bg3 e8N Ng5 Kh6 Rf8 h8B Ba4 Qg6 Rf3 Bf4 Rd3 Qf7 Bb5 Nf2 Ba4 Nf6 Qe8 d8Q Bh3 N6g4 Nd7 Qc8 Ne5 d7 Nef3 d8Q Qd7 Qb8 Qc8 Ne3 Bb5 Nc4 Ba4 Qh5 Bb5 Qdf8 Kd7 Rc1 c5 Nc7 Ba4 Qb7 Bac6 Nd6 c4 Qff7+ Kd8 Qg4 c3 Nc4 c2 Qh7 Ng1 Qd1 N1f3 Nb5 Ke8 Nbd6+ Kd8 Ndf5 Ke8 Ra1 c1B Ne7 Bce3 Rc1 Kd8 Nef5 Ke8 Qbf7+ Kd8 Ne7 Kd7 Bhe5 Bde6 Bg7 Bed5 Bh8
3b3r/1K1BBN2/2R1Q1BB/1R3N2/b2b2p1/3rpnN1/1rQ3P1/1N1rn1kn b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 h4 a5 b4 axb4 Nc3 g5 Nb1 g4 Ra4 Qd7 Ra6 Qf5 Ra1 Qg5 hxg5 Kd8 Ra6 Kd7 Ra1 Ke8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 b3 f5 b2 b6 h4 b7 e3 g6 e2 f6 e1N g7 h3 f7 h2 Bd3 Ra3 Ne2 Bd7 Ng3 Nh6 g8B Ba4 Qc2 Nd7 b8Q Ne5 Qc8 Bg7 f8N c5+ Ke4 c4 Ng6 c3 Be6 N5f3 Nh4 Bd4 Bd7 e5 Qa6+ Kc5 d6 Ra2 Nhf5 Ra3 Rg1 h1R Ra2 Kb4 Kd5 e4 Qc8 Rb3 Qe8 Ra3 Qe6 Rb3 Na3 b1R Rb2 Rh3 Rf1 Ra1 Rb1 Rb2 Rg1 Bb3+ Kc6 Ba4+ Kb7 Kc5+ B7b5 Ng8 d7 Nf6 d8N Nh5 Rh1 Ng5 Nf7 Ngf3 Nf1 Ng3 Rh2 Rba2 Bd7 Nh1 Rb3 Rg3 Rh6 Rb2 Nb1 Rh3 Qa6 Kd5 N1g3 Kc5 Rc6+ Kd5 N7d6 Ke5 Nf7+ Kf4 Qd1 c2 Rb5 Bb3 Qa2 Ba4 Qe6 Rba2 Ba3 c1B Be7 Ba3 Bf8 Rb2 Qc2 Be7 Bh6+ Bg5 Na3 Rd1 Nb1 e3 Be4 Rd8 d3 Bc3 d4 Rh4 d5 Bd4 Bg7 Rh7 Bh6 Rhh8 Nh4 Rd3 Bg6 Rd1 Nhf5 Rd3 Be8 Rd6 Bd7 Rd1 Bf8 Bd8 Bh6+ Ng5 Rc8 Rc6 Ne4 Rc3 Rc6 Rcd3 d6 Bc7 Bc8 Ba5 d7 Bd8 Bg7 Ngf3 Bf8 Bc7 d8B Bcb6 Bde7 Bd8 Nec3 Ba7 Bd7 Bd4 Ng7 Kg3 Ne4+ Kh2 Nf5 Kg1 Neg3 Rh3 Bg7 Rh8 Bh6
3QQQkN/2nn1n1q/N3p3/b1P4R/BR3B2/BB3n1r/p1b5/Kb2b1Q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 h5 b4 a5 c4 d5 Kc2 h4 Kb2 h3 g4 a4 c5 e3 g6+ Kg7 f5 e2 b6 d3 b5 d2 g5 h2 b7 d4 b6 d3 Na3 Rh4 Rb1 Qd7 Nb5 a3+ Ka1 a2 Rb4 Nh6 f6+ Kh8 Qe1 d1B f7 d2 Nh3 Qd3 Qg3 e1B Qg1 Bf5 Nf4 Qd7 Bh3 Bb1 Ba3 Bdc2 Nc7 d1N Na6 Ne3 Bf1 Rh5 Bb5 Nd5 Ba4 Qf5 g7+ Kh7 g8B+ Kh8 g6 Bg7+ Rb2 Bgc3 f8B Ba5 Rb4 Rh4 Be6 Nf7 g7+ Kg8 Ng6 Nc7 Beb3 e6 Be7 Qe4 Nh8 Qh7 Bd6 Rh6 Qg6 Rh5 Bf4 Rh4 Rg1 h1N Rg5 Ng3 Rh5 Ne2 Qg3 Nd4 Qg1 Nbc6 b8Q+ Nfd8 b7 Nf3 Re5 Rh3 Rh5 Nce5 Qc8 Rb8 Qd7 Rc8 b8Q Ndf7 Qd5 Rf8 Qe8 Nh2 Qd6 Nhf3 Qdd8 Nd7 gxf8Q#
1Bb1r1r1/kRP1Bpp1/3R2Q1/Nr4q1/1b2NB2/2N5/KQbr4/1N1b2nB b - - 0 1 illegal: No possible last move
1B2B1k1/1P1n3N/Knr5/2Q1pr2/pNR1R1r1/N1B1Qr1b/1n3NB1/5q1n b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 g6 Be6 g5 Bg7 c3 Bd4 cxd4 Bg4 f3 Bxf3 d5 Bg4 Rh2 Bd7 Rh1 Bc8 Ke2 Kf8 b4 e5 d4 h5 d6 c5 b6 a5 d7 c4 g7+ Kf7 d5 h4 d6 a4 b5 e3 b7 c3 Kd3 e2 Kc4 e1N b6 c2 Kb5 h3 g6+ Kf6 Qe2 h2 Nh3 f3 Bb2 c1R Nf2 Rc3 Na3 Qc7 d8Q+ Ne7 g8N+ Kg7 d7 Rd3 Bg2 Nec6 Qe3 Rh6 Bc3 Nb4 Nf6 Nd5 Qe7+ Kh8 d8N Nd7 Rg1 h1N Nh7 Kg8 g7 Rc6 b8B Rd4 b7 N5b6 Rd1 Rg4 Rd4 Nd3 Re1 Nb2 Qc5 Qd6 Rc4 Qd1 Re2 Qf1 Re1 Ra6 Re2 Rf6 Nc6 Rff4 Nb4 Rf5 Nd1 f2 Re1 Kf7 g8B+ Kg7 Be6 Rf3 Bf5 Kg8 Bg6 Qg1 Qc6 f1R Qec5 Re3 Bd2 Rh4 Qf6 Nd5 B2e4 Nf8 Qf4 Rc6 Ka5 Nb6 Ka6 Bh3 Bc3 Rg4 Bg2 Nfd7 Be8 Rf2 Qe4 Rf5 Nf2 Qf1 Qf3 Rd3 Ree4 Re3 Qf4 Rf3 Qfe3
nN6/p1r5/r1n1BrRq/R2nkn1N/Q1Rr1pB1/5PR1/Q5Q1/Q1b3K1 b - - 0 1 legal: proof: e4 d5 a4 dxe4 b4 f5 g4 b5 axb5 c5 bxc5 h6 Bb2 f4 Bf6 Be6 Bg5 Bf5 gxf5 hxg5 c4 Kd7 d4 e5 h4 g4 f6 Ke6 c6 g5 f3 e3 c5 g3 c7 g2 c8R g4 f7 g3 d5+ Kf5 d6 e2 c6 e4 c7 Qf6 b6 Be7 f8Q Nc6 h5 Ne5 d7 Nf7 d8R Rh7 b7 Ne5 b8Q Nh6 Qa4 Nc6 Nd2 Ke5 Qbb3 Ba3 Rh3 Bc1 Qfg8 Nf5 Rd6 Qh6 Rg6 Rf7 Qg7+ Rf6 Qba2 Rb8 Qgg8 Rb4 Nb3 Rd4 Na5 Ng7 Rb8 Ne6 c8B Nc7 Rb4 Na8 Rc4 Nb4 Rh4 Nd5 Rhg4 Ra6 Rg7 Rf6 R4g6 Ra6 Bg4 Rf6 Nh3 g1R Nf2 g2 Nh1 Ra6 Kf2 e1N Bd3 Nc2 Ng3 Nce3 Bc2 Nf5 Bb3 Qh8 h6 e3+ Ke2 Rh1 h7 g1N+ Kf1 Rh6 Nh5 e2+ Kg2 e1R Kf2 Rf6 Nc6+ Kd6 Kg2 Re7 Nb8 Ne2 Kf2 Rc7 Kf1 Nec3 Kg1 Ke5 Qg2 Nde7 Qf7 Qd8 h8Q Qf8 Rb4 Nd6 Bd7 Rdc4 Qa5+ Kd4 Rg3 Rfg6 Bg4 Ndf5 Qb5 Ra6 Ra5 Nc6 Qa4 Rd6 Qe6 Qf6 Qee2 Qh6 Qea2 Rg6 Rbb5 Rb4 Be6 Nd5 Rb7 Ke5 Rg8+ Kd6 Qha1 Rd4 Rb4 Ke5 Rc4 Rf6 Rg6
B2N4/K1BN1b1n/NprrQ1Bb/1k3rbp/r2PR3/1b2Q3/2R4B/b5N1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 Nh3 g5 Ng1 f4 h3 Nc6 h4 Nce7 Na3 Nf5 gxf5 g4 Nb1 Qg5 hxg5 Be7 Rh6 Bd6 Rh1 Bf8 Kf2 Kd7 e4 h5 a4 c5 d6 Kc6 f6 c4 g6 c3 e5 c2 g7 b3 d7 b2 d8N+ Kb6 e6 Bd7 f7 Rc8 a5+ Kc5 a6 Be7 f8B Kb6 a7 Ba4 a8B Rc6 Bd3 Nf6 g8Q Kc5 Ra2 Bb3 Rh4 Rh6 Qe2 Nh7 Nc3 b1R Nb5 Ra1 Nc7 b6 Bg6 Kb4 Qe3 g3+ Ke1 f2+ Ke2 f1R Kd3 g2 Na6+ Kb5 Kd4 f3 Re4 Bd6 e7 f2 e8N Be7 Qe6 Bg5 Nf6 Rd6+ Ke5 Rc6 Rb2 Ra4 Nd7 Rd6 d3 Rc6 Bd2 c1B Rc2 Bb2+ d4 Ba1 Bf7 Rf6 Bd6 Rg6 Bc7 Bh6 Ne2 g1B Be1 Rf6 Bg6 Rd6 Bb4 Rc1 Be1 f1B Bg3 Bh2 Ng1 Bfc4 Qe8 Bf7 Qe6 Rc6 Bf4 Rc5+ Kd6 Rcf5 Be5 Bg3 Bf4 Bh4 Bh2 B4g5 Rc3 Ka5 Kc6 Rc2 Kb7 Kb5 Ka7 Rc1 Rd3 Rc6 Rc3 Rd6 Rc2 Rc6 Qe7 Rfd6 Qe6
2b2Q1k/2K4Q/2bPp2R/2B1Nr1R/2nnB3/rQnBQp2/2NB1q1p/5b2 b - - 0 1 illegal: No possible last move
R3bR2/2RB1N1B/1nr1NN1n/6r1/n1p2p2/K1PqQb2/Q2RpN2/2k2q2 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 dxe5 d6 h4 gxh4 e6 Bg7 Bg5 Bh6 Bc1 Bf8 e4 Bd7 e5 Bc8 e7 Kd7 Bf4 Ke6 Bh2 Kf5 e6 Kf6 Be5+ Kg6 f4 dxe5 Kf2 e4 Ke2 Bg7 Ke1 Be5 fxe5 Qd5 Na3 Qd6 Nb1 Qd8 e8B Kg5 g4 Kf4 b4 Ke3 b6 a5 e7 c5 g5 h5 b5 f5 b7 a4 b6 h3 c3 h4 g6 c4 g7 h2 e6 a3 Nd2 a2 Qb3 h3 Kd1 f4 Kc2 Nd7 Kb2 Rh5 b8R Nh6 g8N Ng4 b7 Qa5 Ne2 Kd3 Nh6 e3 Nf7 Nb6 Ne4 Qf5 Nf2+ Kd2 Nd4 Rg5 Bd3 e2 Bd7 Ra6 e8N Nh6 e7 Qe4 Rac1 a1N Qa2 Nb3 Nf6 Nc5 e8Q Qf3 Bc2 Nca4+ Ka3 Qd3 Rhg1 h1B Ne6 h2 Ra8 Bd5 b8R h1Q Rb7 Be4 Rc7 Bf3 Rb1 Qh3 Rb2 Qf1 Bb1+ Kc1 Rd2 Bcb7 Bc2 Bbc6 Rh1 Ng4 Rh8 Nh6 Rf8 Bb5 Bc8 Bd7 Qe7 Be8 Bd7 Nc8 Qc5 Rc6 Qe3 Ncb6 Bb1 Qd4 Bf5 Qd3 Bh7
5K2/rQ3Qn1/3R1rpB/p4N2/qb1p2nR/2N1bn1Q/2Pq1R1R/k2BQ3 b - - 0 1 legal: proof: b4 a5 g4 b5 e4 c5 a4 f5 exf5 h5 axb5 hxg4 d4 cxd4 b6 Nc6 b5 Ba6 bxa6 Nb8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 e4 f4 g3 h4 g6 b7 d6 a7 e3 h5 d3 h6 e2 h7 e1B Rh2 g2 Nc3 d2 Be2 Bg3 Nf3 g1N Nd4 Nf3 Ra4 Qb6 Qe1 Bf2 Bd1 Nd7 b8Q Nh6 Qb7 Nc5 Rc4 Rg8 h8Q+ Rg7 Rb4 Ng4 Qh3 Qb5 Ra4 Rd8 a8R Be3 Ra6 Qb3+ Kc6 d5 Rb4 Rb8 Rab6 Re7 Kd6 Ne6 Rc4 Ng7 Ra4 Kf7 f6 Qa2 Rc4 Qa4 Nf5 Ra8 Re4 d4 Ra6 Ra7 Rc6 Ke8 f7+ Kd8 Ng3 Ra6 f5 Ra7 f6 Re6+ Kd5 Bb4 f8Q+ Re8 Qff7 Re6 Ra6 Rc6 Nf5 Rb6 Be2 d1Q Rf4 Qd2 Bd1 Nh6 Rh4 Ng4 Qfc7+ Ke8 Qf4 Kd8 f7 Rf6 Rd6+ Qd7 Qa8+ Kc7 f8R Qa4 Re8 Bf2 Re2 Be3 Ref2 Re6 Rd8+ Kb6 Qc7+ Ka6 Qf7 Rc6 Rd6 Kb6 Ke4 Kc5 Qab7 Rb6 Rd8 Rf6 Rd7 Qb3 Rd6 Qa4 Qg2 Bh6 Nd5 Kc4 Qh3 Qc3 Bd2 Bf4 Be3 Bg3 Bh6 Qd2 Nde7+ Kc3 Nd5+ Kb2 Nc3 Bf4 Kd5 Qa3 Kc6 Be3 Kd7 Qa4+ Ke7 Ka1 Kf8
Q2KQB2/2Bp4/q1Q2Nq1/N1pRrN2/b1N1p1P1/r2n4/1R3Q2/2knbr2 b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 h4 gxh4 c4 Bg7 a4 Ne7 axb5 Ng8 b6 Bh6 b7 Bf8 e4 f5 e6 Bd6 e5 Ne7 b5 Ng8 Bd3 Bf8 Be4 fxe4 b6 Qe7 Ra2 Qc5 Ra1 Qb5 cxb5 Bg7 Bg5 Bh6 Bc1 Bf8 Ke2 Ke7 Ke3 h5 Kd4 c5+ Kd5 a5 f4 a4 g4 a3 f5 a2 Qc2 h3 Rh2 h4 Bf4 Nc6 b8Q Rh6 b7 Ra3 b6 Rh5 Nf3 Nh6 Nbd2 Bg7 Rd1 a1Q Qc7 Rg5 b8Q Ba6 b7 Bb5 Nc4 Ba4 Rhd2 h2 Qa8 h1R b8N h3 Nd4 h2 Qb6 Rf1 f6+ Kf8 Kd6 h1Q Kc7 Qh5 e7+ Kf7 e8N Kg6 e6 Nf5 e7 Ne5 Qba6 Ne3 Kd8 Nd3 Bc7 Re5 f7+ Kg5 f8B Kf4 Q6c6 Qg6 Nf6 Bh8 Rb1 Nd1 e8Q Bg7 Qa2 Bh6 Qb2 Bg5 Qa2 Bh4 Nf5 Bf2 Rbb2 Be1 Qb5 Kf3 Nc6 Kf4 N6a5 Kf3 Rh2 Kf4 Rh5 Kf3 Nd2+ Ke2 Qaf7 Qa2 Qbc6 Qc4 Rg5 Qa6 Ndc4+ Bc2 Nb6 Kd2 Nbc4+ Kc1 Qfd5 Bh4 Qd4 Be1 Qf2 Ba4 Nh6 Re6 Rd5 Re5 Nf5
rk3n2/pr1QN3/4B2q/3b1qP1/B6R/1R1Qp1p1/2q1Q2R/KNRQb2n b - - 0 1 legal: proof: e4 h5 g4 g5 a4 f5 c4 fxe4 b3 b5 axb5 d5 cxd5 h4 Ba3 Kd7 Bd6 Ke8 f4 Nh6 fxg5 Ng8 Bg3 hxg3 d4 Kd7 Kd2 c5 Kc1 Kc7 Kb2 e5 h4 c4 h5 e3 h6 e2 b6+ Kb7 h7 e1Q b4 e4 b5 e3 d6 Be6 g6 Bf7 g7 Ne7 g8B Be6 g5 Ng6 d7 Nh4 d5 Nf3 d6 Qf2+ Ne2 Ng1 Rh2 Qe8 d8Q Bh3 d7 Nc6 Be6 Qf5 Nec3 Bg2 Nd5 Bb4 Ne7 c3+ Ka2 Rg8 h8R c2 R8h4 c1Q Bd3 Qef8 Bc2 Nh3 Ba4 Ne5 Qe8 Ng1 d8Q Qh6 Q8d3 Be1 Qed7+ Kb8 b7 Ng6 Q3e2 Nf8 Q7d3 Kc7 b8R Nh3 Rb6 Qc6 Kb2 Bd5 Rb8 Nf2 b6+ Kd6 b7 Kc7 Nc3 Nh1 Rc1 Qf2 Ka1 Rg7 Nb1 Qf5 Rc8+ Kd6 b8Q+ Qc7 Qb7 Qc2 Qbb5 Rf7 Rd8+ Kc7 Rd6 Rg7 Qd7+ Kb8 Rc6 Rf7 Rc3 Rf6 Bg8 Rb6 Rb3 Rb7 Be6
b1Q3r1/2Q2N2/R3Nb1R/2p3nq/bR1n1P2/1Q1pB1Br/2p1R1Q1/1kb2K2 b - - 0 1 illegal: No possible last move, all moves rejected
1N1rQ2R/Kp2RrN1/b3b1n1/1P2RR1n/q2B3B/Q5B1/1pp2rr1/2kB4 b - - 0 1 legal: proof: b4 d5 h4 a5 c4 f5 cxd5 g5 e4 gxh4 exf5 Bg7 a3 Bc3 Qb3 axb4 Qc2 b3 Qd1 Bb4 axb4 Ra6 Bb2 Ra3 Bc1 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 f4 c6 g4 b2 g5 e6 g6 h3 g7 h2 f6 h4 f5 h3 f7 Qd7 f8B+ Qe7 f6 Ra7 f7 Nf6 g8Q Ra3 Ne2 Ng4 Qb3 Ne5 Bg7 Qf8 Ng3 Nbd7 Be2 Ng6 Re1 h1R Bd1 h2 Nc3 Rg1 Na4 h1B Nb6 Bf3 Nh5 Qe8 f8R Rg2 Rf5 Nf6 Ree5 Be2 Nd7 Ba6 Nb8 Ra4 Qa3 c5+ Kc3 c4 Kd4 Qb5 Qe8 c3 d3 c2 Bf4 Ra5 Bg3 Qa4 Rb1 Rg8 Bh8 Bd7 Ng7 Nh5 Ra1 Rb5 Kc4 Rf8 d4 Rf7 Rb1 Kc7 d6+ Kb6 d5 Ra5+ Kd4 Kb5 Nc6 Bc8 d7 Rf2 d8R Bd7 Ke3 Kc4 d6 Rd5 b5 Bc8 d7 Rdd2 Rd5 e5 Nb8 e4 Rde5 Rd4 Bg4 Rdd2 Re1 Rg2 Bd1 Rdf2 Qd3+ Kb4 Kd4 e3 Kd5 e2 Kd6 Nhf4 Kc7 Nh5 Qa3+ Kc4 Kb6 Kd4 Qd6+ Kc3 Qa3+ Kd2 Ka7 Kc1 Rf1 e1R Rh1 Re3 Re1 Rff3 Re7 Rc3 R1e5 Rcd3 Re2 Nf8 Ne6 Nh7 Qf8 Rd6 Bd4 Rff2 Ng7 Rd5 R2e5 Rd6 Qh8 Nf8 Qg8 Ng6 Rf8 Rff6 Qf7 Rd5 Qe8 Rf7 Rh8 Rd6 d8B Be6 Rc7 Rd5 Bdh4 Rd8 Re7
BQ1q3B/2P1q3/Bn1QpR2/4NNqR/b2p1bB1/1R1p4/8/RK1br1rk b - - 0 1 illegal: No possible last move
1R2Rq1R/2K1NpN1/p1b1B1B1/p3Bb1r/1Qb1B3/6bn/Pn2k1Qb/2R5 b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 h3 Nc6 h4 Nb8 b4 g5 hxg5 b6 Nf3 Ne7 Ng1 Rg8 Bb2 Rg6 Ba3 Ng8 Bc1 Rc6 Rh4 Rc5 Rh1 Ra5 bxa5 bxa5 Ba3 Ba6 Bb2 Bc8 Bc1 Qd6 Qc2 Bh6 Nc3 Ke7 Nd1 Na6 Nc3 Bf5 Kd1 Nf6 Rh4 Rh8 Rh3 Bf8 Rh6 Ng8 Rh1 Ke8 Nb1 Bc8 Ke1 Nb8 Qd1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 d4 c5 e4+ Kb4 g6 f3 g7 a6 g5 h4 g6 f2 d6 c4 d7 c3 d5 h3 d6 c2 Qe2 h2 Nf3 Rh4 Bf4 c1B Nc3 Qc7 d8R Kc5 Nd5 Qb6 d7 Qb1 Bh3 f1B Be6 Qb4 Nd4 Qb2 Ne7 Qb6 Ndf5 Rh5 Qg2 Nf6 g8B Nh7 g7 Ng5 Bh7 Nh3 g8B Bc4 Bg6 Qb4 B8h7 Be3 Re8 Bf2 d8Q Bg3 Qdd2 Kb5 Rhc1 h1B Rab1 Bh6 Rh8 Nc6+ Kf6 Bd7 Be5 Bhf4 Ng7 Bh2 Rb3 Bfg3 Qb2 Kc5 Qb1 Qa3 Rbb8 Nb4 Qb3 Nd3 Qb7 Qc3 Qb3 Nb2 Qa4 Bd5 Qa3+ Kc4 Qb4+ Kd3 Nc6 Qc5 Bg4 Bf4 Bd4 Qc4 Ke7 Qb5 Kd8 Bf5 e5 Bg5+ Kc7 Bh4 Qg1 Bfe4 B6f5 Qc4 Bhg6 Bf3 Qg2 B4g3 Bc3 Qc5 Bd4 Nf4 e6 Bc4 e7 Nh3+ Be5 Ke3 e8R Qf8 Be6 Bf5 Ne7 Bc6 Bf3 Kd3 Be4+ Ke3 Qg1+ Ke2 Qg2+
b1N1rq2/2Np2N1/kbp1q3/1R1r2P1/1Q1N3R/1Rr2Qr1/pB1B3R/K5n1 b - - 0 1 illegal: No possible last move
1r6/1pR2R1P/4k1Q1/1Q1NB1K1/1N3rn1/Rb1R1b1N/p4pqq/1N3Brr b - - 0 1 illegal: No proof kernel
nN3N1Q/1N1Qr1q1/p2B1p2/1n2Q3/5bnB/P3p2N/1R1k4/qn1n1KQR b - - 0 1 legal: proof: f4 b5 b4 c5 bxc5 d5 e4 e5 g4 h5 g5 a6 c6 Ke7 Be2 Bd7 Bg4 hxg4 g6 Be6 Kf2 f6 Ke2 Bf7 gxf7 Ra7 Ke1 Rd7 Ba3+ Rd6 Bc1 Re6 Kf1 dxe4 Kf2 e3+ Kf1 e4 Ke1 Re5 fxe5 Qd3 Na3 Qd7 Nb1 Qd8 h4 Ke6 c4 Kf5 d4 Kf4 c7 g5 c8N g3 h5 g4 d5 b4 d6 g2 d7 g3 e6 b3 h6 b2 a3 Qe8 d8B Nd7 h7 Bh6 f8N Nb6 e7 Na8 c5 Qd7 e8Q Qg7 Nc3 b1N c6 Bg5 c7 Nh6 Nd6 Ng4 c8Q Rg8 Nf3 g1N h8Q g2 Be7 Nh3 Ne5 g1N Nb7 Nf3+ Kf1 Nd4 Ned7 Nhf2 Nb8 Nb5 Ra2 Bh6 Qe1 Nd1 Bd6+ Kf3 Rb2 Bf4 Qe5 e2+ Kg1 e3 Nd5 Qe7 Qd7 Rg7 Bd2 Qf7 Bc3 Qg6 Bd2 Re7 Ba5 Qg7 Bac7 Bh6 Nf4 Bg5 Nh3 Bf4 Qc5 Ke4 Qe5+ Kd3 Qf2 e1Q+ Kg2 Bg3 Qg1 Bf4 Ba5 Qc3 Kf1 Qd4 Be1 Qc3 Rb4 Qa1 Bh4 Kd2 Rb2+
1QnNqrkr/Q1B5/2n1p1r1/3Q2rn/Rn2B1R1/NQ3p2/1P1pR1RK/8 b - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 d4 gxh4 e3 cxd4 Ra6 d3 Ra3 Nf6 Ra1 Ng8 g4 d5 f3 d4 Kf2 d2 g5 Bg4 fxg4 d3 Kg2 Bg7 Kf2 Bd4 exd4 Qd7 Bg2 Qd6 Bf1 Qd8 Kg2 Kf8 c4 a5 d5 h5 g6 f5 g7+ Kf7 c5 a4 g5 e6 c6 a3 b6 a2 d6 f4 c7 f3+ Kh2 h3 c8Q h4 d7 Rh5 g6+ Ke7 b7 Qe8 Qc7 Nc6 b8Q Rg5 Qdb3 d1R Bf4 d2 Na3 Kf6 d8Q+ Nge7 Qdd7 Nc8 Bd3 Rf1 Ne2 Rfg1 Re1 a1N g8R Nc2 g7 N2b4 Qca7 Rg6 Qdd5 R1g5 Bc7 Kf7 Qbb6 Rb8 Nd4 Ra8 Rhg1 Rb8 Rh8 Ra8 Rh6 Kg8 Rg4 Rb8 Be4 Ra8 Re2 Rb8 Kg1 h2+ Kf1 h1N Kg1 h3 Kh2 Ng3 Rhh4 Nh5 Rgg2 Na5 Nc6 Ra8 Nd8 Nac6 Rhg4 Rb8 Kg1 Ra8 Qbb8 h2+ Kf1 Kh7 g8R h1R+ Kf2 Rh4 Rf8 Rh3 Rff4 Kg8 Kg1 Ng3 Qab6 Rh8 Qbc5 Nh5 Kh2 Ra5 Qca7 Rb5 Qd7 Rbf5 Qdd5 Rf8 Bb1 Na6 Ra4 Nab4 Be4
2bQ1Q1B/p1nnK3/k3bBrR/b1RB4/5r1q/4N1pP/Q2QpN1p/5B2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 h4 h5 Qe2 Qc7 Qd1 Qh2 Be3 Qxh4 Bd2 Qh2 Bc1 h4 Bg5 h3 Bc1 Qg3 Be2 h2 Bf1 Qh3 gxh3 Ba6 Ra5 Bb7 Ra1 Bc8 Kd2 Kd8 Kd3 Kc7 Ke4 Kb6 Kd5 e5 f4 g5 c4 g4 b4 d3 c5+ Kb7 c6+ Kb6 c7 g3 f6 e4 f5 d6 f7 e3 f6 d2 Nf3 e2 Ne5 Rh6 Ra6+ Kb7 b6 Bd7 b5 Be8 Ke6 d5 Bb2 d4 Ng4 d3 Na3 Rh5 Nc4 Nh6 Nce3 Bg7 f8B Rc5 f7 Rc6+ Ke7 Bd7 Nf2 Bc3 Bg7 Ba5 f8Q Rg6 Bbf6 Ng4 Bh8 Bc8 Qa1 d1Q Qa2 d2 Qd8 Qc1 Qd7 d1B Qdd2 Be6 Rg1 Nd7 c8B+ Kb8 b7 Qc4 Rc6 Ba4 Ra6 Kc7 b6+ Kc6 b8Q Kb5 b7 Qe4 Bb2 Ngf6 Rc6 Ne8 Bbf6 Qh4 Qc7 Bg4 Qd8 Bb3 Rd6 Nc7 b8Q+ Bb6 Qf8 Bbe6 Bb7 Ba5 Qbd8 Rb8 Bc6+ Ka6 Bd5+ Rb6 Bfg2 Bgf5 Rc1 Bg4 Rdc6 Bgf5 R6c5 Rb4 Bf1 Rf4 Ra1 Nb6 Rb1 Bc8 Rb4 Nd7 Re4 Bg4 Re5 Be6 Rh5 Re4 Rh7 Rf4 Rh6
1q5R/1QP1pr2/R2Q1b1K/1p2R3/n4Qkp/1bNQ2B1/2pRb1N1/B2n3n b - - 0 1 legal: proof: b4 b5 e4 d5 c4 f5 exf5 c5 h4 g5 a4 gxh4 a5 a6 bxc5 Ra7 c6 Rb7 c5 Rb6 axb6 a5 Bc4 dxc4 Ke2 Kf7 Kf3 Kf6 Kg4 h6 Kh5 a4 g4 a3 f4 c3 d4 a2 g5+ Kf7 b7 h3 c7 c2 c6 h2 f6 Ke6 g6 Kf5 g7 Bd7 c8Q Qc7 d5 Qd8 f7 Qe8 d6 Qd8 Ne2 Be6 d7 Bb3 Bb2 Qe8 d8Q+ Nd7 b8B Rh7 Re1 h1B Qb7 Ne5 Q1d6 Nd3 Nbc3 Nf2 Qd3+ Be4 Q8d6 Nh1 Red1 Qc8 Rd2 Qd8 Re1 Qc8 Ba1 Nf6+ Kh4 h5 g8R Bh6 f8R Rf7 Rg6 Ng4 Rh8 Bg7 Re6 Ne3 Bc7 Rf6 Bb8 Nd1 Bc7 Qb8 Re5+ Kg6 f5+ Kf7 Kg5 h4 Rg1 Bf3 Nf4 Bg4 Ng2 Be2 Bb2 a1N Re1 Rh6 f6 Rh7 Rf1 Bd5 Rff5 Nb3 Ba1 Nc5 Rf4 Be6 Ra4 Bb3 Ra6 Na4 Bb6 Bc4 c7 Bb3 Bf2 Bh6+ Kf5 Bg5 Bg3 Rg7 Ke4 Kg6 f7+ Bf6 f8Q Rh7 Qh6+ Kf7 Qf4 Kg6 Qf1 Kh6 Kf5 Kh5 Ke4+ Kg4 Qf4+ Kh3 Kf5 Rf7 Kg6 Ndb2 Qf2 Nd1 Kh6 Kg4 Qf4+
4NqB1/1BB1p1Q1/3Q1PR1/prQ2Rnn/k1rBN2Q/2b4p/1q2n2p/3K4 b - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 a5 e4 f5 b4 fxe4 a4 g5 axb5 gxh4 b6 Kd7 b5 Ba6 bxa6 Ke8 g4 Kd7 d4 c5 f4 h5 b7 h3 d6 Kc6 d7 h2 f5 e3 g5 c4 d5+ Kb5 a7 h4 d6 h3 f6 e2 g6 c3 g7 c2 Bb2 c1N Bg2 Rh6 Bd4 Rh8 Nf3 Nh6 g8B Qe8 d8Q Na6 b8B Qg6 d7 Qf7 Nfd2 Nc7 Qc8 Na6 d8Q Nb4 Bc7 Rb8 a8Q Nd5 Rf1 Nf4 Qd6 Nh5 Ne4 Bg7 Rf3 Qf8 Nbd2 Nf7 Nc4 Bh6 Qf4 Ng5 Ncd6+ Kb4 Qh4 Rb5 Ne8 Rh7 Kd2 e1Q+ Kc2 Ne2 Rf5 Qf2 Qd3 Rg7 Rg1 Rg6 Kd1 Ka4 Qd5 Rg7 Qf7 Rh7 Qg7 Rh8 Bdb6 Qd4 Bf3 Qb2 Bd4 Rb4 Bd8 Ne6 Qda6 Qa2 Ng3 Rb8 Nc7 Qb2 Bf7 Qg8 Qd6 Rb5 Bb7 Bd2 Ne4 Bc3 Rg6 Ng5 Bfd5 Qe8 Bf7 Rf8 Bg8 Qf7 Na8 Re8 B8b6 Qf8 Nc7 Rd8 Ne8 Rd7 Qcc6 Rc7 Qcd5 Rcc5 Bc7 Rc4 Q5c5
R2KN2q/r2Rrp1R/2QP3p/kn2rQrn/B6R/1b2BQ2/p5pN/5Q2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kd7 Kd2 a5 Kc3 c5 Kc4 Kc7 b4 Kb6 e4 a4 d6 g2 Kd5 h6 g6 g3 e5 c4 g7 c3 d7 c2 Kd6 a3 e6 Ba6 e7 Qc8 d8R Qc4 e8Q Nd7 d5 Qb3 Nf3 g1R Nc3 g2 Rh4 Ne7 g8R Qa4 Ne4 Qa5 Nh2 Ng6 Nf6 Nge5 Ke7 Rb8 d6 Ra8 Be3+ Nc5 Rd7 c1R Qf3 Nc4 Rg7 Re1 Rh7 Ra7 Kd8 Rg8 Be2 Bb7 Bd1 Rg5 Ba4 Bd5 Qee4 Re2 Qef5 Rge1 Ne8 Qa6 Bg1 Re5 Be3 Nd2 Qf1 Ne4 Q1f3 Nf6 Ra2 Rc7 Qf1 Nh5 Q1f3 Kb7 b6 Ne4 b5 Bb3 Qf1 Nc3 Q1f3+ Kb8 b7 Qb6 Ra1 Ka7 Ra2 Qc5 b6+ Ka6 b8Q Ka5 b7 Qd4 Qc8 Nb5 b8Q Ra7 Qcc6 Re7 Qf1 Qh8 Qbb7 Re2 Qcf3 Re1 Qbc6 Re2 Rc2 a2 Rc5 Rc2 Re5 Rc5 Ree4 Rce5 Rb4 Nc7 Rb8 Nb5 Ra8
bN2R3/2p2r1Q/Qp3BBK/1R4Bp/r3p3/B2bP2k/1n2n1RR/1nN4n b - - 0 1 illegal: No possible last move
8/nrp4N/4prRp/R1p1K3/Q3p1N1/NP1Q1Rr1/n1b1R2q/2NBB1k1 b - - 0 1 legal: proof: g4 b5 a4 f5 axb5 g5 c4 Bb7 f4 Na6 h4 Bf3 h5 Nb8 h6 Bb7 c5 Bc8 fxg5 e6 e4 fxe4 g6 d6 g5 Bg7 hxg7 dxc5 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 d4 a5 b6 a4 b7 a3 Rh3 h6 Bd2 a2 Na3 Ra5 Rf3 Bd7 Ne2 Bc8 Qa4 Qd7 Be1 Na6 b8R Qb5 Nc1 Ne7 g8N Qb3 g7 Bd7 g6 Rh7 Be2 Nb4 Bd1 Qc2 b3 Bb5 Rf8 Nec6 Ra8 Na7 Nf6+ Kc6 g8R Rg7 Rb1 a1R Ng4 Kd5 Rb2 Bd3 Ra2 Qf2 Rc2 Na2 Re2 Rh7 g7 Rb5 Rgb8 Rh8 g8N Rb7 Re8 Bc2 N8f6+ Kd6 d5 Rg8 Nh7 Qh2+ Rg3 Rg6 Rg8 Rg5 Rg6 Rf5+ Ke3 Rf6 Rf3 Rb1 Nf2 Ke5 d6 Nc8 Ra5 Na7 d7 Rb2 d8Q Rb1 Rfg3 Kf5 Kd2 Kf4 Ng4 Ra1 Rg1 Kf3 Rf1+ Qf2 Qd3+ Kg2 Rh1 Rb1 Rh3 Kg1 Rf3 Qh2 Ke3 Rb2 Qad4 Bb1 Qd7 Rc2 Q7d4 Rc3 Qa4 Bc2 Rf5 Qg2 Kf4 Qf2+ Ke5 Qg2 Qd5 Rg3 Qd3 Qh2 Rf3
6B1/NNBk4/3QNpKB/b1pPb2R/3qQp2/nR1n1pN1/B5p1/6nb b - - 0 1 illegal: Other
1qn1B1N1/4r3/6nk/1rQn2q1/b3Br2/1RR2Q2/1PRRKBrB/2r1bNb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 f5 d4 Kf7 e4 Kg6 d6 h5 d7 a5 e5 c5 b6 f3 g5 c4 b7 h3 d5 c3 e6 f2+ Ke2 h4 e7 c2 e8R h2 d6 f4 Kf3 a4 Ne2 a3 Re3 h3 Nd4 a2 Rc3 Ne7 Ke2 f3+ Kd3 Rg8 Qe1 Nbc6 b8B Na7 Be3 c1B Ne2 Bd2 Qc1 Be1 Bg2 f1R Nd2 f2 Ng3 Qe8 d8R Bd7 Ke2 Nac8 Nde4 Ra5 Bd4 Ba4 d7 Rb5 Nf6 Kg7 Bb7 Ng6+ Be4 Bc5 Qe3 Bb6 Rac1 a1Q R1c2 Qc1 Qf3 Qf4 Rg1 h1R Be3 h2 Be5 Nh8 g6 Kh6 g7 Ng6 Bd6 Qg5 Bc7 Rf8 g8B Rf7 Rg2 Rg7 Bf7 Rhg1 Bb8 Qg8 Be8 h1R Rb3 Re7 Rcc3 Rh4 Rh2 Rg2 Bbf4 Rh1 Nf1 Qe6 Bg3 Qd6 Be5 Qb8 B3d4 Nd6 Rdc8 Bc5 d8Q Ba7 R8c6 Nc8 Qd5 Bb6 Qc5 Ba7 Ng3 f1N+ Bf2 Ne3 Nf1 Nd5 Rd6 Ne3 Rd2 Nd5 Rh3 Bb6 Bh2 Rhg1 Rg3 Rf4 Rcc2 Qh5 Qd4 Qg4 Ne3 Qh5 Qg4 Rf7 Qc3 Bd4 Qc5 Qg5 Rf3 Re7 Rg3 Rf1 Rf3 Rgg1 Bh4 Bf2 Qh3 Rd1 Nf1 Be1 Rfc3 Rc1 Qf3 Rgg4 B4g3 Bg1 Bf2 Rg2 Ng8+
1nRrQ1n1/bB1q3b/bB3N2/bBbR1q2/8/nKN4P/1QrN4/r1N1kB2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kf6 c4 Kg5 Kc2 Kg4 e4+ f3 e5 g5 e6 d5 h6 f5 h7 a5 e7 f4 e8B a4 h3+ Kg3 c5 Kf2 b6 d3+ Kb2 d4 c6 g4 c7 d2 b5 d3 b7 a3+ Kc3 g3 b6 a2 Bf7 g2 Rh2 Qd7 Qa4 d1B Be3+ Ke1 Be8 d2 Ne2 g1B Nc1 f2 Kc4 f3 Nc3 Be2+ Kb3 d1R Qa3 Be7 Qb2 Ba6 Rg2 Rd5 Rg5 Rd2 Rd5 Bc5 Rb1 a1B Bd4 Qf5 Beb5 Rc2 Be3 Bd7 c8B Qf7 Bd4 Bf5 Be3 Qd7 Bd4 Nc6 b8Q Be4 Qe5 Nb8 b7 Ba7 Qe8 Bc5 Bfd3 f1N Bdc4 Ba7 Bb6 f2 Be2 Ne3 Bf1 Nc6 b8N Nc4 Bb7 Na3 Bfd3 f1Q Bdc4 Qff7 Bf1 Qdf5 Nd7 Bc5 Nf6 Nb8 N3e2 Nh6 Nc3 Rg8 h8N Q7d7 Nf7 Rf8 Ba5 Ng8 Ne5 Bd3 Bb6 Be4 Qg6 Rd8 Nc4 Bd3 Nd2 Be4 Qa2 Bb2 Qe8 Ba1 N3e2 Bc3 Qb2 Ba5 Ra1 Qfe6 Nc3 Bh7 Nce4 Qf5 Ra2 Nc4 Ra4 Na3 Rc4 Be7 Rc8 Bc5 Nc3+ Qfe6 Nh5 Nb1 N3e2 Bab4 B7c6 Qf5 Ba5 Bab6 Qd4 Bb7 Qb2 Ra6 Qa2 Ba7 Bb6 Bc3 Qb2 Ra1 Nf6 Ba6 Ba8 Ba5 Bb7 Na3 Nc3+
3B1qnk/4bn1Q/1KNRN3/1RR2bQ1/3qRrr1/P1BBnbq1/n6B/3n4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 e5+ d6 b5 d4 b3 g4 b4 f4 h3 a3 b2 d5 b3 g5 h2 g6 h4 Nc3 b1Q Nce2 b2 Bd2 e4 Nd4 e3 Nc6 h3 Qc1 e2 Nf3 e1Q Bd3 Be7 Ng5 Rh4 f6+ Kh8 f7 Rg4 f8B Ra4 f5 Qg3 f6 Raf4 f7 Bf5 Re1 h1B Re4 h2 Ne6 Bf3 Qg1 Qa2 Rb1 h1N Bb4 Qa1 g7+ Kh7 Rc1 b1N Bc3 Nf2 Kb5 Nd1 d7 Qe8 d8B Ne3 d6 Nd7 Rc2 Ne5 d7 Qb2+ Ka6 Qb4 Rb2 Qd4 Rb5 Bf6 Bd6 Be7 f8R Nf7 Na7 c5 Nc6 c4 Bb8 Qf6 Kb6 Qd4+ Rc5 Nfh6 Rf6 Qf8 Rg6 Nf7 Rg5 Nd2 Qb1 Ndf1 Be5 Nd1 Rh5+ Ngh6 g8R Nfe3 Rg6 Qe1 Bb8 Kh8 Rhg5 Ng8 Rf6 Rh4 Be5 Rfg4 Bh2 Qg3 Qc2 Bg6 Rd5 Bf5 Rg6 Rf4 Rd6 Rhg4 Rg5 Qf2 Qb1 Qg3 Bf1 Ng2 Be1 c3 Rd5 c2 Ree5 c1N Bc7 Bd6 d8Q Qe3 Bc3 Qe4 Rb5 Bh7 Rd2 Be7 Rd6 Bf6 Qe7 Qa4 Bd8 Qc4 Qe4 Qb4 Bd3 Qd4+ Rec5 Na2 Re5 Bg6 Qf5 Nge3 Re4 Ng5 Qf7 Be7 Qe8 Bh7 Qh5 Nf7 Qhg5 Qdg7 Qff6 Bf5 Qfg6 Qd4 Qh7+
1bBnrq1B/2bK4/N1n1r2q/n2b1R2/PNQR3Q/3R4/3rB3/BRrr3k b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 a4 b5 g4 h5 d6 c4 d7 c3 Ke6 Kf4 f3 Kg3 d4 h3 f6 b3 f4 h4 f5 b4 f7 h2 f6 b2 g5 h3 g6 c2 d5 b3 d6 Ra6 g7 Nh6 g8B Bb7 Qd5 Nc6 Nc3 b1R Bb5 b2 Bd2 c1R Nf3 Kg2 Rf1 h1Q Rd1 h2 Ne4 Bg7 f8R Nf7 Bb4 Bh6 Qd4 Bf4 Bc3 Qc8 Be2 Nfd8+ Kf5 e5 f7 Qa8 Nc5 e4 Ne5 e3 Qc4 Rc2 Bh7 Rd2 Ned3 Rc1 Nb4 b1N Bg6 Rg8 Bh8 Na3 Rb1 Qb8 Bgh5 Rb6 Beg4 e2 Nca6 e1B Be2 Beg3 Bhg4 Ne6 Rd8 Re8 f8B Qc8 Bfg7 Qa8 Rc8 Ned8 Ba1 Qb8 Rf1 Be5 Rf4 Ba8 Rd4 Bgf4 Qc5 Nc4 Qb5 N4a5 Qc4 Qg1 Rc7 h1R Rb7 Qh2 Ra7 Nf7 d8Q Rhd1 d7 Qh6 Qh4 Bc7 d8R Bh2 Rd3 Kh1 R8d4 Nfd8 Bh3 Bcg3 Rf7 Bc7 Rf6 Bhe5 Ke4 Qc8 Kd5 Bb8 Rf2 Qf5 Rff3 Qff8 Bc8+ Bh2 Rf5 Bb7 Qg5 Bhc7 Qe7 Ne5+ Kc5 Re6 Kb5 Bg2 Qf6 Nec6 Qh4+ Bh2 Kb6 Bd5 Rg3 Ba7+ Kc7 Bb8+ Kd7 Qhg7+ Qe7 Qh6 Rgd3 Bhc7 Qh4+
6Q1/KbRb3B/2Bqq1Q1/2N2P2/2rk2Br/bn3bBN/q1rQQ1b1/4n1R1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f6 Kf7 Ke2 Ke6 Kd3 Ke5 Kc4 d5+ Kc5 a5 b4 h5 g4 h3 c4 h4 g5 d3 f7 d2 f3 d4 g6 h2 b6 a4 b7 d3 g7 h3 b5 a3 b6 a2 Ne2 Nf6 g8B Nh7 Ba3 Ra4 Nbc3 Ng5 Rc1 a1Q Bg2 Qa2 Nf4 Rh4 Ne4 Nc6 Rg1 h1B Bh7 h2 Nh3 Na5 b8Q+ Qc7+ Kb5 Bd7+ Ka6 Kd4 c5 e5 f4 Nf3 c6 Rb4 Qc2 d1B b7 d2 Qe8 Qb8 c7 Nb3 f5 Be7 f8Q Bc5 Bf1 Bg2 c8B Qc7 b8Q Bd6 Ng3 e4 Qh6 e3 Ne4 e2 Qeg6 e1Q Bb7 Be2+ Ka7 d1R Qf4 Rd2 Qbg8 Qc6 Qd1 Bf8 Rc5 Rc4 Qfg4 Qf6 Rc7 Bd6 Qc1 Rdc2 Bc6 Qg3 Qe1 Qe6 Qa5 Bd1 Be2 Ne1 Bb4 Be7 Bd6 Bf8 Bf4 Ba3 Bd6 Qge5 Nc5+ Qf4 Q4h5 Qfe5 Bef3 Q5d5 Bg3 Qdd6 Qhh6 Be2 Bg4 Bef3 Qc1 Nd3 Qf1 Ne1 Ba4 Bb7 Bc6 Bf3 Qe2 h1B Qb4 Bhg2 Qbd2+
1R1K1QQ1/bb1P3N/k7/1n4B1/nBqr1Rb1/3Q4/1b1q1QbB/qr1B1N1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8Q a3 g5 c2 d5 h3 g6 a2 d6 Ra4 g7 Nf6 g8Q Nc6 Qde1 Ne4 Qf2 Rc4 Nd2 Nc5 Be2 Na4 Rb1 a1Q Bd1 Na7 Nf1 Rd4 Qee2 Bh6 Bd2 c1B Bb4 Bb2 Qd3 Rh7 Qf8 Re7 Qg8 Re1 Qf8 Qg5 d8B Be6 Qg8 Bf8 d7 Bc5 Ne2 Qh6 Neg3 Qg5 Rg1 h1N Ne4 h2 Rg4 Qh6 Nf6 Qg5 Kg2 f3+ Kh3 Qd2 Kh4 f4 Kg5 Bf5 Rh4 Bh3 Nh7 Bg4 Qfe3 f2 Kf6 f3 Qee2 Rd6+ Ke7 Rd4+ Ke8 Qa3 Bg5 Qa1 Ng3 f1B Kd8 Bg2 Nf1 f2 Qee3 B4h3 Rf4 Bg4 Qf8 Ka8 b7+ Kb8 Ng3 f1Q Qf2 Qfe2 Nf1 Qe6 Ng3 Qc4 Qg8 Rg1 Nf1 Bb6+ Ke7+ Kc7 b8B+ Kb7 Be5 Bc5+ Kd8 Kb6 Bd6 Kb7 b6 Nb5 Be5 Ka6 b7 Ba7 b8Q Ng3 Nf8 h1B Nh7 Bb7 Qc8 Bg2 Qc5 Nh1 Qcf8 Bbc6 Rf5 Bcf3 Bh2 Bb7 Rf4 Na3 Ba5 Bbe4 Ng3 Bc1 Rb8 Bb2 Bc2 Nb5 Bb4 Rb1 Bd1 Bb7 Nf1
K1k1b1qr/BN2q1Br/Q1qnb3/1nn5/2B4Q/Q4R1r/2P1Q3/bN1BR1n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 Kd3 Kd7 g4 e5 f4 a5 b4 h5 b6 e4+ Kd2 a4 b7 d3 Kc3 d4+ Kc4 a3 Kb5 h3 f6 a2 f5 h4 f7 h2 g5 e3 g6 e2 f6 e1N g7 d2 Be2 h3 Nf3 d3 Rf1 h1Q Bb2 h2 Ng5 Ne7 g8B Nf3 Ne6 Bg7 f8Q Ra7 f7 Ng1 Rf3 Na6 b8Q Nf5 Qb6 Nc5 Qa6 Qe7 Kb6 Nd6 b5 Rh3 Qe1 d1B Qh4 d2 Nd8 Qg2 Be5 h1Q Nb7 Ra8 Bb2 Rb8 Ka7 Qgg5 Rf2 Qc6 Rf3 Kc7 Be5 Be6 Qe8 Rd8 f8Q Kc8 b6 Bh8 Bh7 Qg8 Ka8 Bf6 Bc4 Be2 Qeh5 d1N Bf5 Nc3 Bg4 Ncb5 Qhe8 Bh8 Bg7 Bd3 Qeh5 Bg6 Qe5 Be8 Qe2 Nf5 Nc3 Nfd6 Re1 a1R Bh5 Rd1 Nb1 Qf6 Qe7 Rd5 Bg4 Rh5 Qf8 Rh7 Qe7 Bf5 Q7e3 Qe7 Qea3 Be6 Rg3 Qcd7 Qd1 Nc3 Bh6 Bf6 Bg7 Bg6 Bge2 Qc6 Rf3 Bh5 Qd2 Be5 Bd1 Ncb5 Qe2 Qh8 Qd2 Ba1 Qe2 Qcc7 Na5+ Ncb7 Rc3 Qc6 Rf3 Rg8 Qa7 Nc5+ b7+ Kd8 Qa6 Be8 Bc3 Qg7 Bb2 Rgh8 Bc3 Qc8+ b8B Qc6+ Nb7+ Kc8 Ba7 Qg8 Bg7
R5Qb/1n2BN2/N1q1B2Q/2b5/2b4n/2q1PkN1/RqrB1rr1/1qnKN2B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Kd7 g4 Kd6 d4 a5 g5 c5 b6 h5 b5 f5 b7 c4 e3 c3 b6 c2 g6 h3 g7 h4 Rh2 a4 Bc4 a3 Bb3 f3 Rg2 f2+ Kd2 f1R Ne2 a2 Ng3 h2 Qf3 h1Q Qg4 f4 Bc4 h3 Qh4 h2 Nh5 f3 Qf6+ Be6 Nc3 f2 Na4 Nh6 g8B Nf5 Ng3 Na6 b8Q+ Qc7 b7 Nc5 Qh6 Nh4 Nb2 Ra3 Nd3 Rc3 Bh7 Rg8 Be4 Qg1 Qc8 h1Q b8N Qgh2 Na6 Nb7 Ke2 Be7 Bd2 Rg6 Qg8 Bf8 Be1 c1N+ Kd1 Rc2 Bb3 Qc3 Bf3 Kd7 d6 Bc4 Bd5 Be7 Be6+ Kc6 d7 Rg4 d8B Bc5 d5+ Kd6 Ba4 Rg7 Bc6 Rg6 Ndb4 Ke5 d6 Rg5 d7 Rg7 Rb1 a1B Be7 Bb2 d8N Rg6 Ne4 Rg7 Ra1 Rg4 Rg1 Rg2 Ra2 Ba1 Bed5 Kf5 Nd3 Qhe5 Nf7 Qf6 Qd8 Kg4 Qg8+ Kf3 Bd7 Qc6 B7e6 Qh2 Rh1 Qb8 Rh2 Rfg1 Ra3 f1Q Ra5 Qbe5 Ra4 Rgf2 Ng3+ Qe4 Ra3 Qh3 Ra5 Rgg2 Bd2 Qf5 Ra4 Qb6 Ra2 Qbb2 Rh1 Ng6 Rh5 Nh4 Bc6 Qh7 Rd5 Qhf5 Rd8 Qfd5 Rc8 Qd7 Bcd5 Qc6 Ra8 Qh8 Qc8 Rh2 Bf6 Qa3 Bd4 Kg2 Qb8 Rc3 Nde5 Qa5 Nf3 Qb1 Bf6 Rc2 Be7 Bc3 Be4 Qab4 Qd8 Q4b2 Qg8 Qd4 B4d5 Qd3 Be4 Bh8 B4d5 Qdc3 Be4 Re2 Ne1+ Kf2 Bh1 Rg2 Nd3+ Kf3 Qc8 Rf2 Qb8 Be5 Qg8 Bh8 Ne1#
N2qr1QQ/2b1k3/1R2B2r/K1P4r/B2b1Bq1/5nnR/1nR1b1qb/B4NR1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 a5 c4 h5 b4 e5 g4 a4 b6 a3 c5 d3 Kc3 d2 b5 a2 Kb4 h3 f6 e4 f5 h4 g5 e3 b7 e2 f7+ Ke7 g6 e1B b6 h2 g7 d4 Ne2 d3 Bb2 h3 Nd4 Rh7 Qb3 d1N+ Nd2 Bg3 Nb5 Nh6 g8B Nd7 b8R Ba6 b7 Ne5 Nc7 Nf3 Ka5 Bf4 Rc1 a1B Rg1 h1Q Rc2 h2 Bg7 Nb2 f6+ Kd7 Qc3 B8d6 f8Q Qg2 f7 h1R Be2 Rh4 Bd1 Nf5 Nf1 d2 Be5 R4h5 Qg7 Bh2 f8R+ Kc6 Be6 R7h6 Qg8 Ng3 Bh8 Be5 Rf4 Bd4 Rh4 Be5 Rh3 Bf4 Bc4 Kd7 Be6+ Ke7 Bd4 Bd6 Be5 Nf5 Bf4 Ng3 Qch8 Be5 Rc4 Bd6 Ba4 d1Q Rc2 Be2+ Kb4 Ra6 Na8 Bc7 Be5 Rb6+ Ka5 Q1d4 Rc8 Qg4 b8B Nd1 Bf4 Bd4 Be5 Nb2 Bg7 Bf4 Rc6 Rb7+ Rb6 Bc7 Ba7 Rb8 Be5 Qd7 Bf4 Re8 Bb8 Bd8 Bbe5 Bc7 Bd2 Qd8 Bc3 Nd1 Ba1 Nb2 Bf4
1qB3BN/Q3k1q1/3BNq1n/1qP2nR1/6r1/3rn1N1/rB2Q2N/bbKb1R2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 a5 c4 h5 b4 e5 g4 a4 b6 a3 c5 d3 b5 h3 g5 h4 g6 d4 f6 e4 f7+ Ke7 f5 a2 b7 h2 b6 h3 g7 e3+ Ke1 e2 Kd2 e1N Be2 Nc6 b8Q Nc2 b7 Nh6 g8B Bg7 f8N Ne3 Be6 Rg8 Nf3 Qd7 Re1 h1Q Rg1 h2 Rg5 Qf1 Qa7 h1Q b8B Qh2 Nc3 Qb7 Bc7 Qb5 Rb1 a1Q Ne4 Bb7 Bc8 Bf6 Bb6 Qb8 Nh2 Qg1 Ng3 Qaa6 Rh5 Rg4 Bc7 Be5 Ne6 Qab6 Qa1 Ra2+ Bb2 Bh8 Qc2 Ba6 Rf1 Qg2 Kc1 d2+ Kb1 d1B Kc1 d3 Rg5 Nd4 Bf3 Qd6 Qe2 Qe5 Bd5 Qf6 Nf4 Bb7 Bg8 Bf3 Ne6 Bc2 Qd2 Bfd1 Qe2 Bb1 Qc2 Qgc6 Qe2 Qg7 f6+ Ke8 f7+ Ke7 f8N Ndf5 Nd4 Qcf6 Ng6+ Ke8 Bd5 Qfe7 Nf8 Bb3 Nh5 Ra7 Qa2 Qg6 Ba1 d2+ Kb2 d1R Ng3 Qe5 Bg8 Rd3 Kc1 Ke7 Nde6 Bd1 Qa6 Bg7 Qb6 Ra2 Qa7 Bf6 Bd4 Qg7 Ng6+ Ke8 Nh8 Ke7 Nf8 Qe6 Ba1 Qef7 Ne6 Bc3 Nf4 Qff6 Ne6 Be1 Bae5 Bc3 Bd4 Ba1 Bc3 Nd4 Bb2 Ndf5 Bd6+
4Nn2/3bR3/BR3KQP/bbB2Qn1/1q1R1B2/1RkB2rr/1N3qrq/n2r4 b - - 0 1 illegal: No possible last move, all moves rejected
bQ2n1n1/4nB1Q/2R1Q1qQ/1k1bN1R1/Rb1n2bb/1rB3P1/2rn1KN1/3R4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 b4 a5 e4 h5 d6 f5 g3 c5 e5 f3 b6 Kc6 b7 f2+ Ke2 h3 d5+ Kb5 d7 f4 d6 a4 e6 a3 e7 f3+ Ke3+ c4 e8Q h2 Qf7 a2 Qe6 h4 Ba3 h3 Nd2 Na6 b8R+ Qb6+ Ke4 Nc7 d8R Ne8 Bb2 Ra3 d7 Rb3 Ne2 c3 Kd3 c2+ Bc3 c1B Nc4 Bg5 Qd2 Bh4 Nf4 Rh6 Be2 f1N Ne5 f2 Ng2 Ne3 Rhc1 h1B Bh5 f1N Ke2 h2 Bf7 Nd5 Ke1 Rg6 Qh6 Nde7 Ra8 Rg5 Ra4 Nd2 Rab1 Qa6 Kf2 a1N Rc2 Rg4 Rd1 Rc4 Rcc1 Nc2 Qh7 Qc6 Qhh6 Kb6 b5 Nd4 Rc2 Kc5 b6 Kb5 b7 Qd6 b8Q+ Qb6 Nf4 Ba8 Ng2 h1B Qb7 Rc5 Qe4 Qc6 Qeh7 Qe4 Rcc1 Qg6 Rc2 Bcb7 Rc8 Bf3 d8Q Bg4 Rc6 Rc4 Nf4 Bd5 Ng2 Nb1 Re2 Nd2 Re3 Rc5 Rf3 Rc4 Rf5 Rc5 Rg5 Rc4 Ba5 Rc2 Bb4 Nef5 Bc3 Bb4 Qdd6 Nfe7 Qb8+
bRKBb2Q/1nR1r2B/3b2n1/1kN5/2rN1r2/6P1/2N1Nq1Q/bQnQr2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 h5 Kf5 a5 b4 h3 d4 c4 e4 f6 b6 f3 e5 h4 d6 Kc6+ d7 f2 Ke6 h2 b7 f5 b5+ Kb6 d5 f4 d6 f3 Nd2 h3 Nb3 a4 Bd3 f1R Bg5 a3 Bh7 c3 Ne2 f2 Rc1 Nc6 b8Q+ Bb7 Rg1 h1R g3 Qc7 d8N c2 d7 Na5 Nc6 a2 d8N a1B Nb4 Qc5 Kd7 h2 e6 Re1 e7 f1R e8Q Ne7 Qh5 Qf2 Ne6 Ra7 Nec5 Ng6 Qh6 Bd6 Bd8+ Bc7 Qa8 Bc6+ Kc8 Be8 Rb1 c1N Nc2 Rg8 Qe4 Rf8 Qe5 Rf4 Qh8 Nb7 Rg2 Rhg1 Qh5 h1B Qh2 Rc4 Rb2 Qf6 Rf2 Qf8 Rf7 Rff4 Qh3 Na5 Nbd4 Ba8 Qh2 Rh1 Rg7 Rff1 Rb4 Nc6 Rd7 Ka5 b6 Bd6 Rb3 Qf3 Re7 Qg2 Rb1 Rf4 b7+ Bc7 b8Q Qf2 Rb6 Bd6 Rf7 Re7 Rg7 Re5 Rc7 Re7 Rb2 Qf3 Qb3 Qf2 Qa2+ Ra4 Qb1 Rc4 Ne4 Ka6 Rb8 Na5 Nb3 Nb7 Nec5+ Kb5 Nbd4+
Q2nNq1q/nq1B1r1q/1kBP4/3B1NK1/q3rQ2/R3r1B1/4bbRR/1q5R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 a5 d4 h5 e5 a4 g5 h3 g6 a3 g7 a2 e6 c4 d6+ Kb6 d5 h4 e7 h2 e8B h3 d7 c3 Bg2 c2 Nd2 Rh4 Qe1 Nh6 g8B Nc6 Ne2 Na7 Qf2+ Bc5 d6 Nf7 Ng3 Ba6 Nde4 Qf6 d8R Qh8 Bb2 c1Q Bd7 Qb1 Be5 Qh7 Qd2 Bf2 Nf6 Rg4 Re8 Nd8 Bd5 Rc8 Rh8 Rc3+ Ke2 Rb3 Ne8 Rf3 Qc1 Re3+ Kd2 f3 B5c6 f4 Nf5 Bg1 Qc4 f2 Bgd5 f3 Bg3 f1R Qf4 f2 Rg8 Re7 Rh8 Rf7 Ke3 Re1+ Kf3 Rh4 Rg8 Re4 Rg7 Rh5 Kg4 f1Q Rg6 Rh6 Kg5 Qf3 Rg8 Rhe6 Rg6 Bf2 Rh6 Qc2 Rag1 a1Q Rg2 Qaa4 Rh4 Nc8 Rh5 Qb1 Rh6 Ka7 b6+ Kb8 b5 Qba1 b7 Ka7 b8R Rc4 Qh4 Qg8+ Nfg7 Qfb3 Re1 Qab1 Bf4 h1Q Rc1 h2 Bg3 Re3 Qf4 Qf8 Nf5 Rce4 Rh7 Q1b2 Rh4 Qbh8 Ra1 Qf1 Rb6 Qc1 Ra3 h1Q Rb7+ Ka8 b6 Be2 Rg4 Q1h7 Rh4 Qca1 Rhh2 Qab2 Ra1 Q3a2 Rd1 Qab1 Rdh1 Qad1 Ra7+ Kb8 Ra1 Qa4 b7 Ka7 b8Q+ Ka6 Qh4 Na7 Qf4 Qb7 Qa8 Kb6 Ra3
5Br1/BN6/1b2bNQ1/QQn2nQr/R4nB1/2K3Pq/k2nqb1b/4B1Rn b - - 0 1 illegal: No possible last move, all moves rejected
1rqn1Q1b/1R1Q2n1/5B1R/Kb1n1Bk1/1rP1b3/1q6/6N1/BbbQBQnN b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 Kf6 f4 a5 g4 d5 c4 e5 b6 h5 b5 h3 b7 e4 b6 d3 Kc3 d2 Bd3 d4+ Kb3 a4+ Ka2 h2 Bf1 a3 Kb3 d3 Bh3 a2 Nf3 h4 Ne1 e3 Ng2 e2 Nc3 e1N Bb2 Ba3 Rb1 Bd7 Ba1 Nc6 b8B Qc8 b7 Nd8 Ne2+ Bb2 Kb4 Nf3 Ng3 Bb5 Ba7 Rb8 Bf2 Nh6 Ka5 Ng1 Be1 Re8 Qe2 d1Q g5+ Kg7 g6 Kf6 g7 d2 g8Q Qb3 Qd5 d1N Qdd3 Nc3 Qd7 Bc1 Qed1 Re7 Bg4 h3 Rb2 Nd5 Rb1+ Kf7 f6 Kg6 f7 Nf5 f8Q Ng7 f5+ Kg5 f6 Re6 f7 Rb6 Be5 a1B Bf5 Ba6 Bb2 Rb4 Bbc3 Ra8 b8B Bb5+ Ba7 Rb8 Bad4 Nf3 Rf1 Ng1 Nh1 Bab2 Rf4 Ba1 Rh4 Bab2 Nf2 h1B Rh6 h2 Be5 Ba3 Ba1 Bab2 Nf4 Be4 Nh1 Bc3 Ng2 Bd3 Qc5 Be4 f8Q Bc2 Qf2 B3b2 Ng3 h1B Qf1 Be4 Ne3 Bhf3 Nh1 Bd3 Ng2 Bfe4 Bd4 Bc3 Rb2 Bb1 Rd2 Nge6 Rd3 Ndc7 Qdf7 B3b2 Bh8 Bf6 Rd7 Nd5 Rb7 Bd4 Be5 Bc3 Qd7 Bd4 Bh2 Bh8 Bhe5 Ng7 Bf6+
3q1R2/R1b1rb2/Kn1nnb2/P1N5/2RN3q/2n1R1kn/NN1Q3b/1QB1r2B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kf4 g4 h5 a4 e5 a5 c5 f6 h3 g5 h2 f3 c4 d4+ Kg3 f7 e4 d6 b3 d7 c3 f4 c2 d5 b2 g6 e3 f5 e2 g7 e1B d6 h4 f6 h3 Bg5 c1B Bc4 Na6 Qh5 Bc3 Be3 Nc5 Na3 b1N Qd5 Ra7 Bg5 Nh6 g8Q Nf5 Qh7 Nd2 Nf3 Ne6 Re1 h1Q Nd4 h2 Ra2 Bg7 Rc2 Re8 f8N b6 f7 Bf6 Bd3 Nc4 Be4 Bf4 Bg2 Rb7 Ka6 b5 Bf3 b4 Re3 Nb6 Nc4 b3 Nb2 Bb4 Rc4 Qe1 Qg6 h1N Qh7 Nf2 Bh1+ Kg4 Qg6 Nh3 Qg2+ Qg3 Qd2 Qh4 Qh7 Bh2 Qg6 Qe7 d8R Bd7 Rdc8 Qd8 R8c7 Bc6 d7 Nd6 Qgd3 Bd5 Qb1 Re7 Bf4 Rb8 Ra7 Bc3 Nb5 Bce5 Nc3 Rc8 Na2 Rc5 Rce4 Rc1 Rc4 Re1 Bg5+ Nd4 Ne6 Bef4 Nd1 b2 f8R B4e5 Nc5 Bf7 Qh7 b1N Nb2 Nc3 Qb1 Bef4 Bh6 Ne6 Bg5 Qc7 d8N Qd7 Nc6 Qd8 Ree4 Kg3 Nd4 Rc7 Qdc2 B4e5 Bc1 Re7 Qd1 Nf5 Qe2 Bc7 Qd2 Nd6 Re3+
bQ1BqNq1/B2qk1r1/b4n1q/P2Q4/1bb5/1R2Bb1N/N1N1B1r1/n3RK2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 e5 a4 b5 g4 c5 f4 h5 g5 e4 f6 b3 f5 h3 g6 b4 d6 e3 g7 c4 d5 h4 a5 e2 Qc2 c3 Bb2 h2 Na3 h3 Bc1 b2 Nb5 b1Q Qa4 c2 Kf2 b3 Ra2 b2 Qc4 Na6 Be3 c1Q Ra3 Qa2 Rb3 b1B Nd4 Ra7 Nc2 Nb4 d7+ Kf7 Qd4 Ba6 d6 Qe8 d8Q Qd7 Qb8 Rh4 Qd1 Rg4 Ke1 Rc7 Ba7 Qh6 Qd5+ Qe6 d7 Rg2 d8B Rd7 Na1 Bbd3 Nc2 Bdc4 Be3 Bd6 Ba7 Rc7 Be3 Ke8 f7+ Kd7 f8B Nf6 g8N Ke8 Qc5 Rcg7 Ne7 Qd7 Nd5 Be7 Nc3 Bd6 Qd5 Bc5 Na3 Nc2+ Kd2 Bb4 Bc5 Na1+ Ke1 Rf2 Nc2 Rfg2 Ba7 Kf8 Nf3 Ke8 Rg1 h1B Ng5 h2 Nh3 Kf8 Bdb6+ Ke7 Bc7 R2g6 Bcb6 Bf3 Bd8+ Ke8 Kf2 h1B Ke1 Kf8 Kf2 Rg2+ Ke1 Nh5 f6 Ke8 f7+ Kf8 Bc7+ Ke7 f8N Nf6 Qdb5 Ba8 Qd5 R2g5 Kf2 Bg2 Rh1 e1Q+ Kg1 Qe2 Bcb6 Qeh5 Be2 Bf3+ Kf1 Rg2 Rg1 Q5g6 Bc7 Qaa4 Na2 Qgh7 Rh1 Qg8 Bd8+ Ke8 Qd2 Qde6 Ke1 Qad7 Rg1 Kf7 Rh1 Qee8 Rf1 R2g4 Kf2 Rg3 Re1 R3g5 Kf1 Rg2 Bc7 Ke7 Qd5 R7g6 Bcb6 Rg7 Bd8+
Q2Nn3/3Q1Bn1/4r1P1/Bn4Nq/qQN1bb1N/4n3/kR2rQn1/1bbR3K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kc5 d4+ Kb4 e4 c5 g5 f5 e5 h5 b3 a5 b6 f3+ Kh2 f4 d6 a4 g6 f2 e6 c4 e7 f3 e8Q h3 d5 c3 d7 h4 d6 a3 b7 c2 Be2 a2 Bg5 c1B Nd2 Ka3 b4 Na6 b8Q Nf6 b5 Bh6 b6 Nc7 b7 Nb5 Qf7 Re8 Qc4 Qa5 d8Q Re6 d7 Ne8 Rb1 a1Q Qd3+ Ka2 Qf4 Qh8 b8N Qa4 Qe7 Qe5 Bf6 Qh5 d8N Ra7 Qc5 Rae7 Qcb4 Ba6 Qg3 Bf4 Rb3 Bb7 Nf7 Be4 Qd7 Bb1 Bc4 Re2 Ng5 R2e6 Ne2 f1N+ Kg1 Ne3 Bc3 Ng2 Nd4 f2+ Kh2 Re2 N4f3 R7e6 Nc6 f1N+ Kg1 Nfe3 Qf2 Nf5 Nd8 h2+ Kf1 h3 Nh4 Nfg7 Qb7 Nf5 Qa8 Nfg7 Rg1 h1B Bd5 h2 Nc4 Rc6 Bf7 Re6 Qdd5 Ne1 Qdd4 Bhe4 Qd7 h1N Bd2 Nf3 Kg2 Ng3 Re1 N3f5 Rd1 Ne1+ Kg1 Ng2 Kh1 Bh2 Qf8 Bc7 Ba5 Nfe3 Qb4 Bf4 Rb2+
Q1K2N1k/1r2N3/1Nb2nnQ/2b1NRq1/B3rr1B/1Qr3Q1/4n2P/Rn4qq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Ra5 c5 Kf2 g5 b4 f5 d4 Kf7 e4 Kg7 e5 f3 Ke3 g3 d6 a6 e6 f2 b6 g2 b5 c4 d5 f4+ Kd4 g4 Kc5 f3 b7 c3 b6 g3 e7 c2 e8N+ Kh7 Na3 Nc6 b8Q Bb7 Nc4 Nce7 d7 Ra7 Qa8 Bc6 d6 Ng6 Bg5 c1R Qb3 Rc7 Be7 Rc3 Rb5 a5 b7 a4 b8Q a3 Kb6 Nf4 Bg5 a2 Rf5 a1N Ka6 Nc2 Nb6 Na3 Bh4 Qg5 Bb5 f1R Ba4 f2 Nf3 g1N Nf6+ Kg7 Nh7 Nge2 Rg1 g2 Rh1 Qg6 d8Q Nf6 d7 Bc5 Rg1 Re8 Qe7+ Kh8 Qf8+ Qg8 Qh6 Qg5 Rh1 Rfc1 Re1 f1Q Rd1 Qh1 d8N g1Q Re1 Be4 Nc6 Ng6 Rf1 Rd7 Qg3 Rc4 Re1 R1c3 Ra1 Rcd4 Qf2 Nb1 Qg3 Red8 Ne7 Bc6 Ne5 Rf4 Qh3 Rdd4 Qg3 Rde4 Ka7 Bd7 Kb7 Rb8+ Kc7 Be8 Qb4 Rb7+ Kc8 Bb5 Qb3 Bc6 Nf8+
n2q4/2qb2rn/4BRBN/2B1QN2/4r1R1/1NKb3k/qPN1q1r1/Q3Brb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 d4 c5 Kd2 f5 e4 a5 b6 h5 g5 a4 e5 h3 b7 c4 g6 f3 d6 Ke6 g7 h2 d7 f2 Bh3 f1B Bg2 a3 Ne2 c3+ Kd3 f4 d5+ Kf5 d6 Kg4 e6 h4 e7 a2 e8B c2 Be3 c1Q Na3 f3 Bd2 h3 Nb1 f2 Be1 Rh7 Rg1 h1R Nd2 h2 Bd5+ Kh3 Rg4 Nf6 g8N Ra4 Nb3 Rg7 Bg6 Qcc7 Ne7 Na6 b8Q Re4 Nf5 Rg1 Be6 h1R Kd2 Rg2 Ned4 Rhg1 Nc2 Nh7 Qb5 Be7 Qe5 Bd3 Rc1 a1Q Rb1 Qb7 Kc3 f1Q Qc1 Qa2 Ra1 Qg8 d8N Bd7 Nf7 Qe2 N7h6 Nc7 Qb1 Qd8 Qd1 Qaa7 Ra6 Na8 Qa1 Rf1 Rb6 Qa2 Rc6 Bc8 d7 Bc5 Ra6 Qb8 Rd6 Qdc7 d8B Bd7 Be7 Qbd8 Ra6 Bg1+ Bc5 Rf3 Bd5 Rff2 Rf6 Rf1 Be6
1Q1b1b2/NkrB4/1rr2Bqr/1n2N1Nq/2Nb2n1/1K1RQ3/RP3B2/5qBb b - - 0 1 illegal: No possible last move
1r1N1QQ1/qbNnBb1k/4B3/2r2nbn/1K2Rb2/1Q3n1P/q2B2r1/R3B2Q b - - 0 1 illegal: No possible last move, all moves rejected
N2qNk2/1n5K/Qb1qq3/BPRb1N2/1r2QN1n/Rqb3nr/4Q3/Q2Bb3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 g4 a4 b4 f3 d4 h3 g5 f2 g6 c4 g7 h4 d6 h2 d5 c3 b6 h3 b5 c2 b7 a3 Nc3 a2 Bd2 c1B Na4 Nh6 g8N Nc6 b8Q Bb7 Nb6 Na5 Qa7 Nf5 Qa6 Nh4 Nh6 f5+ Kf4 Be7 e4 Kf8 d7 Bb4 d6 Bd5 e5 Nb7 Be2 f1N e6 Ng3 Qda4 Bb2 Bd1 Bd4 Ne2 Bg1 Ke5 f4 Nf5 f3 Nf4 f2 Q4a5 Ra7 Na8 f1Q Qa3 Qf3 e7+ Kf7 e8N Qb3 Rc1 Kf8 Rc5 a1B+ Bc3 Bb2 Qa1 Bf2 Re1 h1Q Re3 h2 Rf3 Qe1+ Re3 Qb6 Kf6 h1Q d8Q Qh2 Qc8 Qc7 d7 Rh7 Qc6 Ra4 d8Q Qb6 Rf3 Qe6+ Kg5 Be1 Qdd7 B4a3 Ba5 Rb4 Rd3 Bbc3 Qe7+ Kg8 Rf3 Qd8 Qa6 Bab2 Qcc6 Bd4 Re3 Bbc3 Rd3 Be5 Re3 Bc7 Rf3 Bb6 Re3 Bc4 Qe4 Bd5 Rd3 Ng6 Qe2 Rh3 Rf3 Nh4 Re3 Qe5 Kh6 Qed6+ Qe6+ Kf8 Kh7 Qg1 Qe4 Qe6 Rd3 Qd4 Rd2 Qde5 Ra2 Q5d6 Ra3
4bQbQ/qn6/n2Rn1PR/1r2r3/kbBR2R1/1nB4N/2KQ1b1q/1N2q2Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 e4 f5 b4 a5 g4 c5 b6 a4 b7 a3 b5 a2 b6 f3 d6 Kc6 e5 f4 g5 f2 e6 c4 d5+ Kb5 g6 f3 e7 h3 e8Q+ Bd7 Qee2 h4 Qde1 h2 Kd1 h3 Bg5 Ra5 Nd2 Be8 d7 Rh5 d6 Na6 b8R Nf6 b7 Nh7 Bh6 Ka4 Qe3 c3 Bg7 c2+ Kc1 Rhe5 Q3e2 Qe7 d8Q Ng5 d7 Ne6 Bh6 Rab5 Bg2 f1B Bg5 f2 Qe4+ Bc4 Bf6 f1N Nb1 Ng3 Qd2 Nf5 Bf1 Nd6 Qeg2 Bb3 Bc4 Qh7 Kb2 c1N Rc8 Qe7 b8Q Nb7 Rc6 Qc5 Qdc8 Qa7 d8R Be7 Rd4 Bb4 Bf1 Bd5 Kc2 Nb3 Qd6 Bc4 Qf8 Bd5 Rd6 Bc4 Ne2 Bd5 Rg1 h1Q Nf4 h2 Nh3 Bc4 Qd5 Qe4+ Bd3 h1Q Rg4 Qh2 Qh8 Qe1 Qh1 Bf7 Qcf8 Be8 Na3 Bd5 Rd1 a1B Nb1 Bc3 Bc4 Bc5 Bg7 B3b4 Rc1 Qe3 Rf1 Qe1 Rf5 Bb6 Rh5 B6c5 Rh6 Bb6 Rdf4 Bf2 Bf6 Nec7 Rd4 Bg8 Bd8 Ne6 Ba5 Bc5 Bc3 Ba3 Rhh4 Bb4 Rh6
1rkbrQ1B/r5N1/3Kb1B1/8/BQ1bP1b1/rrR2B2/Q2qrR1N/1nn2Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 Kd7 b4 f5 c4 a5 g4 h5 e4 a4 b6 a3 b5 d3 b7 h4 g6 d4 g5 h3 c5 h2 g7 a2 b6 d2 g6 d3 Na3 Nc6 b8Q Nd4+ Kf2 f3 Kg3 f2 Kf4 Ne7 Ke5 f4 g8Q f3 b7 Nb3 g7 Nd5 Be2 f1R Nc4 f2 Bb2 Ra7 Qf7+ Be7 g8B Re1 Ne3 f1R Bf3 Re2 Bh7 Re8 Rc1 a1B Nf5 Nc3 Ng7 Nb1 Rc3 Nc1 Qa2 Rff2 Qe1 d1R Qf1 d2 Bg6 Rde1 Qa8 d1B b8Q Re3 Qb4 Rfe2 c6+ Kc7 Qba4 Qd2 Qb4 Kd8 c7+ Kd7 Rc2 Rea3 Rc3 Bb3 Qab8 Be6 Qa8 Bd8 Qab8 Rb3 Qf8 Ba6 Qbb4 Bac4 c8B+ Kc7 Bd7 Bg4+ Qfe7 Raa3 Ba4+ Kc8 Re3 Bd5 Kd6 Bde6+ Rd3 Rd1 Be5 Bd4 Qf8 Qe1 Bf6 Rdd2 Be5 Rc2 Re3 Rc7 Rc3 Qd2 Bg2 Qb2 Nf3 Qd2 Rg1 h1R Nh2 Bgf5 Bf3 Bg4 Rg2 Rg1 Bc6 Rca7 Rf2 Rg2 Nf5 Rg3 Bh8 Rh3 Ng7 Rh5 Qc2 Rb5 Qa2 Rb8 Ba4+
k1B1n1R1/1B1NKb1b/1r2n1Rr/nnR5/1nP2NQ1/6n1/bQ5b/1Rq3BB b - - 0 1 illegal: No possible last move, all moves rejected
3bN1K1/bb2QB2/PnnR2k1/3n3n/2n1nbq1/2B3N1/1Nr1R1Q1/1R3RrN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 b5 f4 c5 a4 c4 d4 h3 a5 h2 g5 h4 g6+ Kg7 f6+ Kh6 a6 c3 d6 c2 Kd5 h3 f7 e4 d7 b3 Ke6 b4 d5 e3 g7 b2 d6 b3 f5 Nf6 g8N+ Kh7 Qf3 e2 Qg2 e1B Bd2 c1B Na3 b1N Ra2 b2 Ne7 Nc3 Nc4 b1N Nb2 Bh4 Bc4 Na3 Ne2 Rg8 Ng3 Na4 Bc3 Nd5 f6 Nab6 Nef5 Bf4 Rb1 Nc6 Nh1 Bb7 Nfg3 Qc8 Bb3 B8h6 f8Q Kg6 f7 Bd8 Qe7 Nac4 f8R Be3 Rff1 Bhf4 Nd3 Rg7 Re2 Ra7 Nb2 Rg8 Nf2 h1N Ba2 h2 Bb3 Kh6 Kf7 Rg4 Kf8 Kg6 Kg8 Rg5 Nh5 Ng3 Nh1 Ne4 N5g3 Bc7+ d8N Qg4 Nf7 Bd8 d7 Bc5 Nf2 h1N Nd6 Ra8 Ne8 Rc8 Nf5 Nhg3 Nh1 Nh5 Nfg3 Bcd6 Ba2 Bb8 Bb3 Bdc7 d8R Ba7 Rd7 Bd8 Rd6+ Ndf6+ Kf8 N4a5 Bb4 Ne5 Qh2 Qh3 Be6 Nfd5 Nf5 Rc2 Kg8 Nec4 Bc3 Rg1 Qg2+ Qg4 Nfg3 Nc6 Bf7#
5nR1/bPQ5/BQKRnn2/3n3Q/3b1rqb/rN3nQb/1N1N2nk/4B1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 g4 h5 d4 f5+ Kd3 f3 Kc4 a4 e4 h3 b6 f4 Kb5 h2 b7 h4 g5 a3 g6 h3 g7 f2 Be2 f1N Qd3 a2 Qc2 c4 Bd3 c3 Be3 f3 Be2 f2 Bg5 Rh4 Bd2 Ra3 Be1 Rf4 Nd2 Be7 Rd1 Nd7 b8N a1B Na6 Nf8 Nc5 Nf6 g8Q Ne3 Qg6 f1N Qh5 Ng2 Ncb3 Nfe3 Qb2 c2 e5+ Kd7 e6+ Kd6 Bd3 Qd7+ Kb6 c1B Ba6 Qa4 b5 Qc4 Qa2 Qe2 Qc2 Qg4 Qb2 Bd7 Kb7 Bd8 e7 Bb6 Qa2 Ba7 b6 Bc3 Ngf3 Be6 Rg1 h1N Qc2 h2 e8N+ Kd7 d6 Ned5 Qcf5 Nf2 Qc2 h1N Qcf5 Ne7 d5 Nh3 Qc2 N1f2 Qb2 Kd8 d7 Bd4 Nd6 Nd3 N6c4 Ng5 Qa2 Ne5 Nb2 Nh4 Rg3 Ng2 Ng1 Bf5 Na5 Nef3 Nab3 Qh3 Rg4 Nge6 Rg7 Qg4 Rg8 Ng6 Kc6 Ke7 d8Q+ Kf7 Nb1 Bce3 b7 Bf2 N1d2 Bh4 Qb6 Ke7 d6+ Kf7 Qg5 Ne7+ Kb5 Ned5 d7 Ke7 d8Q+ Kf7 Qc8 Ke7 Qc4 Kd7 Qh5 Ke7 Qa5 Kd6 Qb6+ Ke5 Kc6 Qg6 Qh7 Bh3 Qe2+ Kf5 Qhc7 Kg4 Qee5 Bhf2 Qh5+ Kg3 Qb1 Kh2 Qc2 Bh4 Qcc5 Bc3 Qf2 Qg4 Ne4 Ne3 Rd6 Bd4 Ned2 Ned5 Qg3+
3nN1r1/Q5R1/BB1n4/P4brr/bQ2qq1R/KRN1Rk1p/3b2q1/1N3Nn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 h5 g4 e5 a4 b5 f4 e4 g5 c4+ Kb2 b3 g6 b4 a5 e3 f6 h3 f7 e2 g7 e1Q f5 h4 f6 h2 Nf3 Rh5 Be3 Bd7 Ra3 Ba4 Nfd2 Ne7 g8N Nc8 Ne7 Bh6 f8N Nc6 f7 Qc7 Nd7 Nd8 f8Q h3 Rg1 h1Q Rg7 Rb8 Nf6 Qg2 Bf2 Qee4 Ne8+ Kd7 d6 Ke6 d5+ Ke5 d7 Nd6 Bb6 c3+ Kc1 c2 Kb2 c1R Ba6 Rc5 Qg1 Ra8 Qgf2 Qb8 Nf1 Bd2 Qg1 Rb5 Qc5 Qc7 Qff2 Rb8 Qg1 Kf4 Qc4 Kf3 Qgc5 N8f7 d8R Ra8 Rb8 Nd8 Ng8 Qf7 Ne7 Qf8 Qc7 Qff4 Qa7 Rc5 Nf5 Rg5 N5g3 Rh5 Ne2 Rg5 Nec3 Rh5 Ka1 b2+ Ka2 Rb5 Rb3 Rc5 Na3 b1B+ Kb2 Bd3 Nab1 Bc2 Ra3 b3 Qb4 Bd3 Ra2 Rb5 Ka3 b2 Ra1 Qe1 Rbb7 Bf5 Ra2 Qee4 Rb8 N6f7 d6 Rc5 d7 Nd6 Ra1 Qee2 Qc4 N8f7 d8R Bac2 Nc7 Qfg5 Ne4 Nc8 Rd4 Ncd6 Rc8 Bh7 Ka2 Ba4 Na3 b1N Qb4 Nc3+ Kb2 Qf6 Re1 Rcg5 Nb1 Qe5 Ka3 Bf5 Rd3+ Qe3 Re8 Ne2 Rb3 Ng1 Nec3 Rc8 Re6 Rg8 Ne8 Nd8 Ree7 Qeg3 Re4 Qd4 Rg4 Qgf4 Rh4 Qde4 Re3+
1nr1q3/3q1pn1/1Bb1Q1R1/kb1BPNK1/1r2R1B1/BQ1nN3/5Nrq/b1N5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 g4 c5 e4 Kc7 b4 Kb6 d4 a5 e5 c4 g5 a4 g6 a3 g7 h3 d6 h4 d5 c3 d7 h2 Kg4 a2 d6 h3 Qb3 f3 Qe6 c2 Nc3 f2 Nce2 Qc7 d8B Rh6 d7+ Nc6 Kg5 Rf6 Ba3 c1N Bg2 f1R Bd5 Ne7 g8B R6f3 Bh7 Rf6 Bf5 Rd1 Bg4 Nd3 Nc1 Rf2 Rb1 a1Q Rb2 Rg2 Re2 Nf5 Re4 Kb7 b6 Ka6 b5+ Ka5 b7 Bb4 b8Q Bc3 b6 Ba6 b7 Bb5 Re3 Ng7 Re4 Qb6 Bc7 Rdd2 d8N Rb2 Re1 Ka4 Re4+ Qd4 Ba5 Rb4 Bb6 Ne7 Nc6 Qa2 Qg6 Ba1 Na5 Nc6 Qe6 Qab2 Nc4 Qc2 Qbe8 Nb8 Ne3 Qc6 Q8c8 Qe8 Qc3 Qc5 Qc4 Qcc8 Qa2 Qcd7 Qb1 Na6 Qa2 Rd8 b8N Rc8 Nc6 Nb8 Nd4 Rc7 Ngf3 Rc8 Rg1 h1B Nd2 h2 Qb2 Qh8 Ndf5 Qhe8 Bd4 Ka5 Qb3 Rf2 Bc5 Bf3 Rg3 h1Q Bd4 Qh2 Bb6+ Ka6 Rh3 Rg2 Rh6 Be2 Rg6 Bc6 Rf4 Bf1 Ne4 Kb5 Nf2 Ka6 Ba7 Ka5 Bc5 Ne1 Ba7 Bfb5 Re4 Nd3 Bb6+
3b1RrB/4N1B1/r4R1n/2R1NbR1/bP1q1QQB/rk1B1K2/3prn2/2n3r1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 c4 d5 g4 a5 b4 e5 f4 h5 c5 d3+ Kf2 h3 g5 d4 b6 e4 f6 Ke6 f7 Kd5 f5 Kc4 b7 e3+ Kg3 h4+ Kg4 a4 c6 e2 c7 e1R g6 h2 g7 a3 Kf3 a2 f6 h3 Bg5 Ra3 Qd2 Nh6 g8Q Bf5 c8R+ Kb3 Qf2 d2 Bh4 d3 Nc3 Nc6 b8B Be7 Be5 Qd4 Nd5 Re2 f8R d1B f7 d2 Qg4 Rg8 Bh8 Bd8 Ne7 Na5 Rc5 Bdc2 Rc1 a1R Rc6 Bd1 R1c5 Bdc2 Rf6 R1a2 Kg3 Ra1 Nf3 Bd1 Rg1 h1R Nc6 h2 Ne7 R1a2 Rg2 Rg1 Ne5 h1N+ Kf3 Ra1 Qfg3 Nf2 Q3f4 Rc1 Rb5 Rc6 Rc5 Rd6 Qg6 Ra6 Rg5 Nc4 Qh5 Nb2 Qhg4 Nbd3 Rfc6 Nc1 Rf6 Re4+ Be2 Bc2 Bd3 Re2 Re8 Kb2 f8B Ba4 Bfg7 Kb3 Ref8
3rRBn1/4b1R1/7b/N1Q2b2/P1qn1QpQ/K1k2B2/Br2Brb1/1NbnQ3 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 a4 Ke7 e4 g5 h4 b5 d4 f5 Kd2 c5 Kc2 c4 Kb2 g3 e6 Kd6 e5+ Ke7 h5 f4 h6 g4 h7 f3 d6+ Ke8 d5 g2 e7 Kf7 e8B+ Kg7 d7 b3 d6 f2 e6 Kf6 e7 Ke5 Bh6 b4 Qe1+ Kd4 Bf7 Qc7 e8B Be7 d8Q Nc6 Na3 Bf5 Be2 f1B d7 Ra6 Bf8 c3+ Kc1 c2 Kb2 Ra5 Qb8 Re5 Bf3 Re2 Nc4 Rf2 Na5 Kd3 d8Q+ Nd4 Bb5+ Qc4 Qdc7 c1B+ Kb1 b2 Qc5 Nb3 Rh6 Nd4 Rg6 Bh6 Rg7 Bc1 Nh3 g1B Ng5 Bg2 Ne4 Bh2 Ra2 Bhf4 Nd2 Be3 Qbe5 Bh6 Q5e4+ Kc3 Ra3+ Nb3 Ka2 b1N Qee5+ Kc2 Qf4 Nd4+ Ka1 Nc3 B7d5 Qb3 Bbe2 Qc4 Bf7 Nd1 Re3 b3 B7d5 Beg5 Re8 Kc3 Be6 Be7 Bf7 Bd7 Kb1 b2 Be6 Nb3 Ka2 b1R Bed5 Rb2+ Ka3 Nd4 Bf7 Nf6 B7d5 Rg8 h8Q Bf5 Qh7 Bg5 Qh4 Bh6 Bde4 Rh8 Bb1 Ng8 Ba2 Rh7 Rg6 Rf7 Rg7 Rf6 Qhg3 Rd6 Qh4 Rd8 Nb1+
rb1RB3/6NQ/2K3B1/1Q1Pr1Qr/2BrQ3/2pnbnk1/4R2n/r1qN1bB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 b4 f5+ Kd4 c5+ Kc4 Ke5 e4 h5 g4 f3 b6 Kf4 Kb5 h3 d4+ Kg3 d6 f4 b7 h4 g5 a4 d7 f2 g6 h2 g7 h3 e5 f3 e6 a3 d5 c4 e7 a2 e8B Bd6 Qc2 Ne7 g8B Nec6 Qe4 Rh5 Bgf7 Qg5 d8Q Na6 b8Q Nc5 Bd3 f1R Qbc7 f2 Bg6 Rd1 Nc3 f1N Be3 Ne5 Qh7 Nf3 Kc6 Bb8 b5 Ba6 b6 Re1 Rd1 a1B b7 Qf4 Bd4 Qc1 Rd2 Re5 Be2 Nd3 Nd1 c3 Ba7 Bb2 Qf6 Rh5 Qff5 Rh4 Qg5+ Rg4 Bc5 Ba3 Ba7 Bc5 Rc2 Be3 Bd4 N3d2 Nf3 Bc4 Nh4 Nf3 Ng2 Ba6 Rg1 h1R Nf4+ Kh2 Bc5 Rh4 Ne6 Rf4 Qef5 Rd4 Qe4 Bc4 Ng7 Ba6 Qf6 Bc4 Rg5 Ba6 Rh5 Kg3 Re5 N1h2 Qg5+ Ng4 Re7 h2 Rd7 Rhf1 Rb2 h1R Rd8 Rfg1 Bf1 Rh5 Re2 Rgh1 Qge7 Re5 Qg5 Rh5 Ba7 Bc7 b8Q Bd6 Qgf5 Ngh2 Qb5 Bb8 Rd2 Nc5 Bc4 Nd3 Ra2 Bc8 Qf6 Bh3 Re2 Bf1 Qg5+ Kh3 Rb2 Bd2 Ba2 Qa1 Kb7 Ra4 Bg1 Be3 Kc6 Rd4 Re2 Qb2 Bc4 Qb1 Qe7 Kg3 Nf2 Qb2 Qf6 Rea1 Nd1 Qc1 Qg5+
2Q1NRk1/1qr5/n1P4r/pN4Bb/b1RR4/rb6/2BKnb2/n2QQQbR b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 Kf7 g4 h5 c4 e5 f4 d5 b6 e4 b5 e3 g5 e2 b7 h3 b6 d3 f6 h2 c5 d2+ Kf2 e1B+ Ke3 h4 f5 d4+ Kd3 h3 c6 Rh7 Nf3 Qc7 Nh4 Be6 Nc3 Bc5 Nb5 Bb3 Ra4 Bf2 Rc4 Na6 b8R Ne7 b7 Nd5 Rd8 Ne3 b8Q Qb7 Qe5 Nc2 Qee1 Na1 Rd6 Bb6 g6+ Kg8 g7 Rh6 Rd7 Rc8 Bg2 Rc7 Be4 Bg1 Ke2 Ba4 Bc2 d3+ Kf1 Bbf2 f7+ Kh7 f8R Bb3 Qde2 d1B Bg5 d2 Rdd4 Ba4 Qd3 Bh5 Qde2 d1R f6+ Rd3 Nf5 Rb3 Q2d1 Ra3 Rf7 Kg8 Nfd6 Nc5 Ne8 a5 Rg4 Na6 Ke2 Bd4 Kd2 Bgf2 Rf1 h1N Rfg1 Ba7 Rgd4 Ng3 Rh1 h2 Qf1 Ne2 Qfe1 Rg6 Rf8+ Kh7 Rf1 h1B f7 Bd5 Rh1 Bb6 Rg8 Bg1 f8Q Be6 Qff1 Bd5 Rdh4 Bbf2 Rhe4 Rh6 Rf8 Kg6 Rcd4 Bdb3 g8Q+ Rg7 Qd5 Kh7 Qd8 Re7 Qc8 Rc7 Rf3 Kh8 Rc4 Kh7 Red4+ Kg8 Rf8+
rN2N1nB/Bbn2rR1/2p5/QP3Q2/1n1rn2K/1RqB1B2/2Rbb3/3k1n1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 g4 Ke5 d4+ Ke4 b6 a5 b7 h5 g5 f5 g6 c6 g7 h3 d6 f3 Kg3 h2 b5 a4 d7 a3 d5 f2 d6 a2 Nd2+ Ke3 Nc4+ Ke4 Bb2 Qa5 d8R f4+ Kh4 f3 d7 Qc3 Rb1 a1N Nd6+ Ke3 Ne8 Bb4 Qd5 Na6 b8B Bb7 Qf5 Kd2 e4 Nc7 e5 Rh7 e6 Nc2 Bd3 f1B e7 f2 Ba7 Be2 Ba1 f1N Rb3 Ba5 Nf3+ Kd1 Ne5 Nb4 Bb2 Bb6 Ba1 Be3 Bb2 Bd2 Ba1 Nf6 g8R Rf7 Rg2 Ng8 Rc8 Bf4 d8Q Bc1 Nd7 Bd2 Rhg1 h1N Nb8 Nf2 Rh1 Ne4 Bb2 Ne6 Qa5 Nc7 Rg7 Nc2 Rd8 Nb4 Kh3 h4 Rd4 Qc5 Rc4 Qd4 Rc2 Qe5 Qf3 Qc3 Kg4 h3 Kh4 h2 Qf5 Ng3 Nf6 Ne4 e8B Rd7 Bh5 Rd8 Bf3 Rd4 Rhg1 h1R+ Kg4 Bc8 Ne8 Rh7 Rh1 Bb7 Ba1 Rh6 Bb2 Rf6 Kh4 Rf7 Qe5 Rd8 Rg2 Qc4 Qf5 Rd5 Bf6 Rd4 Bh8 Qc3 Rg7
1K6/BQNp1Br1/1R2n3/1n2n3/B1bQ1Rk1/q1R1PNrR/brBb4/1b4b1 b - - 0 1 illegal: No possible last move, all moves rejected
3Rn2q/2Rb1N1r/4QN1B/2n3KN/n4r2/1nRRn1kN/PpBq1bq1/Q7 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 h5 g4 e5+ Kf3 c5 d4 b5 f6 e4+ Kf4 c4 f3 c3 g5 h3 g6 h2 g7 c2 f7 e3 Bb2 c1N Nc3 e2 Nh3 e1N Bd3 h4 Bc2 Nb3 Rc1 Nf6 g8Q Rh7 Kg5 Ng2 f4 Ne3 f5 Ne8+ f6 Ra4 Re1 Be7 f8N h1Q Ne6 Bd7 Ng7 Na6 Qf7 Nac5 Ne4+ Kc7 Qe6 Qg2+ Qdg4 Bd6 Red1 Bg3 Rd3 Bf2 d6+ Kc6 Qe5 Qa5 f7 Qd8+ Qf6 Kd5 f8R Qa5 Ng1 h3 Rf7 h2 Nh3 h1Q Bc3 Qd8 Bd2 Qhh2 Rc3 Qhh1 Rd1 Qe1 Bc1 Qe2 Rdd3 Qd2 Nf5 Qc8 Qh8 Ke6 Nf6 Qca8 d5+ Ke5 Ng7 Qb8 Kg6 Qc8 Ng5 Qa8 Qe6+ Kf4 Re7 Kg3 Nh3 Na1 Rf7 b3 Kg5 b2 Re7 b1N Rf7 Bc8 d7 b4 d8N b3 d6 Rf4 Rc7 Bd7 Nf7 b2 Qg8 Bc6 d7 Nab3 d8R Bd7 Qh8 Na3 Qf8 Nc4 Qfd6 Nb6 Qc6 Qf1 Qh1 Qfg2 Qe1 Nba4 Qh1 Qe1 Bd2 Qe2 Qa1 Qe1 Bc1 Qd2 Qc4 Rd4 Ng8 Qd1 Qe6 Nd6 Re8 Qd8+ Nf6 Qb8 Re7 Qh8 Re8 Qe1 Rd8 Ne8 Kg6 Re4 Rd4 Qe2 Bd2 Qd3 Bc1 Ng4 Bh6 Ne3 Kg5 Qd2 Rdd3 Rf4 Ngh5+
bbQ2b1r/2N4B/6Br/nrQQQ2q/1R1B3N/3Rbq1k/pn2bP2/1B2K3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 c4 Kf7 b4 Kg6 g4 h5 b6 d5 c5 e5 c6 a5 c7 d3 b7 a4 b5 e3 b6 h4 Rh3 a3 Qd2 d4 Nc3 e2 Rh2 e4 Na2 h3 Qe3 Nf6 Nf3 Nc6 b8Q Qe8 b7 Nd7 Bd2 Nc5 Bc1 Ra5 Bg2 Na4 Kd2 Rb5 Qa8 Nb2 b8Q Bb7 c8Q Na5 Nb4 a2 Qe5 Rh6 Rh1 h2 Rd1 h1R Na6 Bd6 Qec5 Bb8 Rb1 Rh8 Bf1 R1h6 Ke1 Bd5 Qab7 Bc6 Qbd7 Ba8 Nc7 Qe5 Qdd5 Qh2 Qf4 Qh3 Be3 Qh5 Kd2 e1B+ Kc1 Rb4 Qfe5 d2+ Kc2 Rb5 Bd3 Na4 Rb3 Nb2 Rb1 d1B+ Kc1 Be2 Nh4+ Kh7 Bc2 d3 Bd4 e3 Ra3 Rc6 g6+ Kh6 g7 Bb4 g8B Rd6 Be6 Rc6 Bf5 Kg5 Rb3 Ba3 Rb4 Rcb6 Ra1 Rbh6 Bb1 d2+ Kc2 d1Q+ Kc3 Qh1 Kc2 Bf3 Kc3 e2 Kd2 Qh3 Ke1 Qg3 Qee7+ Kf4 g5 Bg4 g6 Qf3 Qee8 Kg5 g7 Kf4 g8B Kg5 Kd2 e1B+ Kc1 Kf4 Bgh7 Bd2+ Kc2 Be3 Bfg6 Bf5+ Kc3 Kg4 Qee5 Bd7 Bbd3 Be6 Rd1 Kh3 Bb1 Bg4 Rd3 Qff5 Qce7 Re8 Rc4 Rh8 Kc2 Bc5 Rb4 Be2 Q7d6 Qf3 Q6c6 Bf8 Qcc5 Bf4 Be3 Qh5 Kd2 Qfg4 Ke1 Bg5 Nf5 Qf3 Bd4 Be3 Nh4+
2nBn1RQ/5r2/bR2Br2/b2nn3/b2q1N1q/1BQ1knPN/K1B3p1/1N5N b - - 0 1 illegal: No proof kernel
1Qnrk1bq/2bbQ3/R1B5/1B1Nr2b/3Q3R/3K1bp1/n3P2q/NQBBr3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 g5 b4 d5 c4 a5 h4 f5 h5 f4 h6 a4 c5 a3 b6 f3 e6 g3 b5 a2 e7 f2 c6 d3 h7 g4 b7 d4 c7 g2 b6 g3 Qc2 Nc6 b8Q Nb4 b7 Ra5 Qb2 Bd7 c8B Re5 Nh3 g1Q Qa7 Qh2 Bg2 f1B Bc6 Bg2 b8Q Bf3 Kd1 d2 Na3 Bh5 Rb1 a1R Nf4 Na2 Kc2 d1B+ Kd3 Bb3 Nc2 Bd5 Ba6 Bdf3 Nd5 Bh6 Q2b7 Bf4 Rb6 Rb1 Na1 Qc8 Be3 Re1 Bab5 Qd8 Bc1 Qc8 Kc4 d3 Ra6 d2 Kd3 d1B Ba4 Qd8 Qb1 Bb3 Bcb5 Nh6 Qac7 Nf7 Qc5 Rf8 h8Q Nd6 Qh7 Nc8 Qd4 Qb6 Qhe4 Qf6 Bc6 Qh8 Bab5 Qg1 Rh4 Qh2 Qee3 Kf7 Ba4 Rd8 e8B+ Kf8 Nc7 Bg8 Nd5 Rg5 Bb3 Bc7 Bd1 Re5 Bb5 Bdg4 Bec6 Bd7 Qg5 Ke8 Qe7+
b1K1B3/7N/Rb4r1/1Qb3r1/3nB1Rp/PNB3nR/2bqR1q1/2QBrkb1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 h5 g4 e3 f5 e2 f6 e1R f7 h4 g6 b3 g7 b2 g5 b4 g6 b3 Nf3 Rh5 Be2 Nh6 g8B Rg5 g7 Bb7 Rh3 Ra6 Bh7 Ba8 g8B e5+ Kc4 c5 Kb5 e4 d4 e3 Bd2 c4 Be4 c3 Qc1 c2 Bc3 Nf5 Nbd2 b1Q Bd1 b2 Nb3 Be7 f8Q e2 Bf7 Ng3 Be8 Nc6 Qf5 Qd7 a3 Qa2 Rb1 Bd8 Ra1 Bb6 Rb1 Rh5 Ng5 Qb7 Nh7 Rg5 Ra1 b1B Qf1 Qb2 Ra2 Qd7 Qf3 Qg4 Qd3 Qf4 Qc4 Qd2 Qd3 Ra7 Qc4 Rag7 Ka6 R7g6 Qd3 Rh1 Qb5 e1B Ba5 Bf2 Bc3 Qa1 Rb2 Re1 Ra2 Bg1 Rb2 Ke7 d6+ Ke6 d7 Qa2 d8R Qg2 Rc8 Kd6 d5 Nd4 Rc5 Ke5 Rc6 Qd2 d6+ Kf4 d7 Ke3 d8R Kf2 Rc4 Kf1 Rd6 Bc5 Rb6 Qg2 Ka7 Qd2 Kb8 Qg2 Qd2 c1B Kc8 Bc2 Ra6 Bb6 Bdf3 Bc5 Qd1 Bf4 Qc1 Bc7 Bd1 B7b6 Rca4+ Bd3 Re2 Qd2 Rc4 Bc2 Bd5 Ndf5 Rg4 Nd4 Be4
B3qB1q/2RbR3/n1rN1Brn/1RnR1nB1/2Pb4/kQ3N2/2bQ2p1/4Kn2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 c4 Ke7 b4 Kd6 f4 g5 f6 a5 b6 d3 b5 Kc5 f5 Kb4 h5 d5 f7 d2+ Ke2 d4 f6 e4 h6 a4 b7 d3+ Kf2 a3 b6 e3+ Kg3 a2 h7 e2 Kf2 e1Q+ Kg2 g3 Na3 g4 Nf3 Bg7 f8R Qee8 f7 Na6 b8Q Bd7 b7 Nh6 Qe2 d1N Nb5 d2 Qf2 Ne3+ Kg1 d1B Bg2 Rg8 h8B Bd4 Bf6 Rg6 Nd6 Nef5 Kf1 Bc2 Bcg5 Ka3 Rd1 a1N Qd2 Nb3 Rh8 Ra7 f8B Nbc5 Rh7 Ra8 Re7 Ra7 Bh3 g2+ Ke1 g1N Bg2 g3 Rh2 Ne2 Rh3 Ng4 Rhh7 Ngh6 Rhg7 Bc6 Rc7 Bd7 Re7 Qc8 Qa8 Qcd8 b8R Rb7 Bh1 Rb6 Qb7 Rc6 Qb1 Qc8 Rb5 Qcd8 Nh2 Qa8 Bd5 g2 Nf3 Neg3 Be4 Nf1 Bd5 Rb6 Be4 Qac8 Ba8 Rc6 Qf4 Be3 Rd5 Bd4 Qd2 Qcd8 B8g7 Qh8 Bf8 Qe8 Qb3+
3Br2b/1r2n1q1/5BR1/BN1n1PR1/br2n1K1/Q1nqN3/5Np1/kN2nQ1B b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 d4 Kd6 f4 a5 h4 c5 b4 g5 b6 e5 f5 g3 h5 g2 h6 a4 b7 g4 h7 e3 b5 c4 b6 c3 Ra3 e4 Qb3 g3 Rh4 c2 Nc3 Na6 b8N Ne7 b7 Bd7 Bd2 c1R Rh2 Bg7 Nb1 Nc5 Na6 Rc4 b8N Re8 h8Q Ra7 Nc7 Rb4 Nh3 Rab7 Nf2 Be5 Qh5 Bh8 Nba6 Bc6 Ra2 a3 Qf3 Ba4 Rh5 Qd7 Rb2 a2 Qa3 a1Q Rg5 Qd8 Na8 Qd7 Nb6 Qd8 Nc7 g1N+ Ke1 e2 Bg2 Qd7 Bh1 g2 Rb3 Qb5 Bc3 Qd3 Nc4+ Kd7 d6 Kc6 Nb5 Kd5 d7 Qb2 Nh3 Qa1 Kf2 e1N Kg3 Ne2+ Kh4 Nc2 d8B Ne3 Qf1 Qb2 Bd2 Nc3 Nf2 Qa1 Ne5 Qb2 Neg4 Kc4 d5 Qa1 d6 Ne3d5 d7 e3 Ba5 e2 d8B e1N Rg6 N5e4 Bg5 Ne2 Kh5 Qg7 Bf6 N2c3 Rg5 Qf8 Rb2 Qg7 Re2 Nd6 Re6 Nde4 Qc1 Kb3 Ne3 Ka2 Kg4 Qf7 Bg7 Qf8 Reg6 Ka1 Bf6 Qg7 Qa3+
1R3k2/Kb3qr1/3b3n/Q2pN1NN/bBb4r/P1Q1Qb2/2q2R1N/nBQ3q1 b - - 0 1 illegal: No possible last move, all moves rejected
2nQ1RB1/2K1n2R/r1B5/R1p1P3/qN6/Q2b2n1/B1kbn1rn/1qBq1RN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 a5 d4 f5 e4 c5 b3 h5 b6 f3 b7 a4 g6 a3 g5 f2 g7 a2 d5 h4 d6 f4 g6 f3 d7 c3 Bh3 f1N Ne2 f2 Qd3 c2 Nbc3 Ne7 Kd6 Nbc6 g8B Ng3 g7 f1N e5 Na7 Bg2 h3 Bc6 h2 b8R+ Bb7 Bc4 Rg8 Ng1 Qe8 d8Q Nac8+ Kc7 Ra6 Rb1 a1Q Ra8 Qh5 Be6 Qd1 Qf3 Qa4 Ra1 Rh8 g8B Bh6 Bc4 Bd2 Nd5+ Ka5 Qe3 Rh7 Qd3 Rg7 Rb1 Ne2 Ra7 Rg2 Ra8 Qb5 b4+ Ka4 Ba2 Neg3 Ba3 c1N Qf3 Nce2 Bc1 Qb3 Qc3 Qa3 Qa1 Qb2 Ra7 Ka3 Ra8 Qc4 b5 Qa4 Ra7 Ba8 b6 Bb7 Bb5 Bc6 b7 Bd7 b8R Bf5 Bc6 Bd3 Nb6 Kb4 Raa8 Kc3 Nd5+ Kc2 Rb5 Qc3 Ra5 Qcb3 Qc3+ Kd1 Ra1 Qb1 Qa3 Kc2 Qd7 Na7 Rf8 Nac8 Qd8 Ne3 Nh3 Ng4 Rhf1 h1Q Ng1 Qh5 R1f7 Nh2 Rh7 Qbb4 Bb2 Qf3 Rf1 Qfg4 Bc1 Qb1 Bb2 Qgd4 Bc1 Qda1 Bb2 Qd1 Bc1 Qb1 Nb4+
1Bk1Q1b1/2n5/4r1Pp/3BN1nn/1qQbnQn1/1BRK1b2/2RB4/rQ3N1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 f5 e4 a5 g4 c5 b4 a4 g5 c4 d6 c3+ Ke2 h6 g6 h3 b6 a3 b5 f3+ Ke3 f2 e5 f4+ Kd3 f3 b7 a2 d5 c2 b6 h2 Kc4 Bg7 Nd2 Na6 b8Q Qe7 b7 Nf6 Kd3 Ng4 Bg2 f1N e6+ Kd8 d7 f2 Ngf3 Qb4 Rg1 Ng3 Qf4 h1B Rb1 a1N Rb2 f1N b8B Nfh2 Rb3 Qe7 Rc3 Re8 Re1 Ra7 Re2 Nh5 Qg1 Ra8 Qb6+ Nc7 Qb1 Bd4 Rf2 Qd6 Re2 Qc6 Rf2 Ra2 Nf1 Nb3 Be3 Nd2 Re2 Ngf6 Rf2 Nhg4 Re2 Ke7 Ne5 Nf3 Rf2 Ng5 d6+ Kf8 Nh2 c1Q Rfc2 Qb6 Bd2 Qg1 Nf1 Qb4 Bc6 Bf3 e7+ Kg7 Ba4 Qh1 d8Q Nfe4 Bb3 Ra1 Qd7 Qc5 Qb5 Qb4 Qc6 Be6 d7 Bf7 Qc4 Bg8 Qe3 Kf6 d8Q Bd5 Qf4+ Ke6 Qc8+ Kd6 Rb2 Bg8 Rbc2 Rf8 e8B Rf6 Bc6 Re6 Bd5 Ke7 Qb7 Kd8 Qbb5 Kc8 Qe8+
2RBk2b/2n2bN1/2P2br1/1q2B1Rq/N1Q4n/4Npn1/1bK1b1Br/NB3Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 b4 a5 c4 g5 h4 d5 e4 a4 b6 f3 e5 f4 b5 f2 h6 f3 h5 d3 c5 g4 b7 g3 b6 a3 c6 a2 h7 g2 e6 d4 h6 Ba3 e7 Bb4+ Nc3 Ba5 Nh3 g1B Bg2 f1Q Nf2 Qc7 Ng4 Nf6 Rh5 Na6 b8B Qd6 b7 Bd8 Rg5 Qb4 Ne3 Nh5 Be5 Ng3 b8N Qa5 Nd7 Nc7 Nc5 Be6 Nb3 Bf7 Ba3 Rg8 h8N Rg6 h7 Bh2 Kc1 d2+ Kc2 Qfb5 Qf1 d1N Na4 Bg1 Rb1 a1B Bc5 Rb8 Bb6 Bb2 Na1 Bf2 Qc4 Be1 Qf1 Bec3 Qc4 Rh6 Ng6 Rh2 Nf8 Ra8 h8Q Rb8 Rc1 d3+ Kb1 d2 Qh3 Rc8 Ne6 Ra8 Kc2 Ra7 Bd6 Bh8 Rb1 Ra8 Rg6 Qh5 Be5 Qb5 Ba5 Nf5 Rg5 Nf2 Rg1 Nh1 Bb6 Nh4 Rb1 Bd4 Rb4 Bb2 Ba5 Qc5 Rb8 Qb5 Rc8 d1B+ Kd3 Be2+ Kc2 Bg8 Bb6 Ng3 Ba5 Kf7 e8B+ Ke7 Bg6 Bf7 Ng7 Kf8 Ne8 Bdf6 Ng7+ Ke7 Rf8 Rd8 Be4 Rd6 Rc8 Nd5 Bd8+ Kf8 Bh1 Nc7 Qf1 Re6 Bg2 Rd6 Ne6+ Ke8 Bg6 Rd4 Bh7 Rg4 Ng7+ Kf8 Kb1 Qh6 Rh5 Rg5 Bc2 Rg6 Rg5 Qh5 Bf5 Bc3+ Kc1 Bd4 Bb1 Bc3 Kc2 Bb2 Ne6+ Ke8 Ng7+
KR1Bb3/3Q1B1R/bPNr2b1/1p1b3n/4B1Qk/3qbqR1/3r2n1/R1n1NB2 b - - 0 1 illegal: No possible last move
4r1NQ/q5NB/Pk1brRRK/1q4r1/N4n1B/2Q1N1br/nrb2p2/2Q4Q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Kg4 g5 a4 b5 d4 f3 e4 f6 h4 c4 a5 b3 h6 Kc7+ Kh5 b2 e5 f2 h7 g4 a6 c3 d6+ Kc6 d7 f5 e6 g3 e7 g2 e8N b4 d5+ Kc5 d6 c2 Nf3 g1B Nh2 b3 Ng4 f4 Nd2 b1Q Ng7 b2 Bd3 f1R Ne3 f3 Nb3+ Kb6 Nc5 Bh2 Rg1 Nf6+ Kh6 Nd5 h5 Qe7 d8N Re1 d7 Nc6 Nf7 Nf4 Rg6 Bg3 d8Q+ Qc7 Qh4 f2 Rf6 Bf5 Qh1 Re8 Be4 Rg8 h8Q Bd6 Bd2 Bg6 Qc1 Nb4 Ra4 Na2 Rb4+ Ka7 Rb6 Re6 Rc6 Rg1 Ba5 Rge8 Bd3 Qb7 Bd8 Rg2 Be4 Rh2 Bd3 Rh3 Be7 Bf5 Rg6 Qb5 Bh4 Qa1 Be4 b1R Rf6 Qd4 Rb6 Bg4 Bh7 Rb2 Rg6 Re5 Rf6 Rg5 Rc6 Bf5 Rg6 Be5 Rcf6 Re6 Qc8 Bd6 Qc7+ Qb7 Qa5 Qb5 Qc3 Bd3 Ne5 Kb6 Nc6 Re8 Ne7 Bf5 Ng8 Be4 Qb1 c1R Qa1 Rcc2 Qac1 Re2 Ng4 Bc6 Nd3 R2e5 Ne3 Ra8 Qb4 Kc7 Qbc3 Qa7 Nc5 Re6 Qf3 Rd5 Qfh1 Be5 Kg5 Bb7 h6 Kc6 Ne7+ Kb6 Bg8 Rb8 h7 Bd6+ Kh6 Re8 h8Q Rg5 Bh7 Be4 Ng8 Bc2 Na4+
2q4Q/bn1QnRp1/R2n1q2/5rk1/nQ1P1RN1/3qQBRb/1Nn2K2/2r3B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Ke7 e4 Kf6 h4 a5 b4 c5 h5 f3 d6 g3 b6 g2 b7 a4 d7 a3 b5 c4 b6 c3 h6 a2 h7 f2+ Ke2 c2 Nc3 Ne7 Rh2 Ra5 Be3 c1Q Qd2 Nbc6 b8R Rf5 b7 Na5 e5+ Kg6 Nf3 g1N+ Kd3 f6 e6 Ne2 Bg2 f1Q Nd1 Nc3+ Qe2 Rg8 h8Q Na4 Bg1 Qh6 Ne5+ Kg5 Ke3 Qf3+ Kd2 Qd3+ Ke1 Qc7 d8R Bd7 Ng4 Qc8 Rb1 a1N Bf3 Nc2+ Kf2 Qg6 Ra8 Qh6 b8Q Nb7 Rg2 Qg6 Qh3 Rh8 Qhg3 Rh1 Nb2 Qf7 Qgd6 Qg6 Bh2 Rc1 Rg3 Ra5 Bc6 Ng8 e7 f5 e8Q f4 Bg1 f3 Ra6 Re1 Qb4 Qc7 Ne5+ Bg4 Rd6 Qf6 Rd7 Bc5 Rf7 Ba7 Qd7 Ne7 Qh8 Qc8 Rd1 Rc5 Rd2 Rc1 Qe3+ Qf4 Re2 Rb5 Qe4 Qf6 Nd1 Rc5 Kf1 f2 Kg2 f1N Nb2 Nd2 Rf2 Rb5 Rf4 Nc4 Kf2 Ncd6 Qe3 Rc5 Rgf3 Bh3 Ng4 Rb5 Rg3 Rf5 Bf3
2Rb3n/4rpQB/2bQq2Q/rN4n1/1Q2P2B/3N2b1/b2KbRqq/1k1NN3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 g4 Kd6 b4 c5 b6 h5 b7 a5 e3 h3 b5 c4 b6 h2 g5 c3 g6 f3 g7 h4 Ba6 a4 Bd3 f2+ Ke2 f1B+ Ke1 a3 Bd2 c2 Qh5 c1B Nc3 a2 Kd1 h3 Nf3 Nf6 g8Q Be7 Ne1 Qc7 Bh7 Ne4 Qh6+ Be6 Qgg7 Nc6 b8N Bd8 b7 Ne5 Nc6 Ng6 b8Q Re8 Ne5 Re7 N5d3 Nh8 Rg1 h1Q Rg2 h2 Rf2 Bb2 Rc1 a1Q Kc2 Qa5 Qb4+ Qac5 Kd1 Qg2 Rc2 h1B Bc1 Ng5 e4 Ra5 Kd2 Qc8 Nd1 Qh2 Qgf6 Bf3 Qfg7 B3e2 Rc4 Kd7 d6 Kc6 Rc2 Ba2 Rc3 Qg4 d7+ Qe6 d5+ Kd6 Rc4 Be5 Bb2 Bg3 Bf6 Nh3 Bh4 Ng5 Qbb2 Qd4 Rc8 Qdf6 Qb5 Qf3 Qc4 Qfg2 Qcc3 Bc7 d8N Bb6 Nc6 Bd8 Nc1 Bb5 Ncd3 Be2 Nd4 Bc6 Qb4+ Kd7 Ra8 Kc7 Nb5+ Kb6 Rc8 Ka6 d6 Kb6 d7 Ka6 N3b2 Kb6 Qb3 Kc5 Qe3+ Kb4 Nbd3+ Kb3 Qc5 Bb1 Qb4+ Ka2 Qf8 Ka1 Qg8 Ba2 Qgf8 Bb6 d8Q Bbc7 Qdd6 Bd8 N1b2 Kb1 Qfg7 Bad5 Nd1+ Bb3 Qa3 Ba2 Qab4+
1KN1n3/B1P2pN1/BQr1r3/qr5k/3b2R1/Bb1b1Rb1/1b3B1q/1QR1R2n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 g5 e4 a5 c4 d3 b4 a4 h4 a3 h6 a2 b6 d4 e5 d2 Ke4 f3 c5 g4 b7 f2 h7 g3 b5 d3 h5 g2 b6 Ra5 h6 Nc6 b8Q Qc7 Kd5 Qe7 e6 Qf6 b7 Ke7 Rh3 Qb2 Na3 Kf6 e7 Kg5 Kd6 Nf6 Kc7 Nd4 e8R Rb5 c6 Ne2 Nc4 Be6 Nd6 Ng3 Ne2 g1B Nc8 Bb3 Nd4 Nh1 Rf3 Kh5 Re1 Ba3 Rb1 a1B Nf5 Re8 h8R Re6 Rg8 Bh2+ Rgg3 Bc5 h7 Bd4 h8B Qa3 Qa7 Ne8+ Kb8 Qa5 c7 Bab2 Rg4 Bg3 Qb6 Rc6 Qc2 d1Q Be3 d2 Rc1 Qe2 Qb1 d1B Be5 Qed2 Bd6 Bdc2 Ba3 Bd3 Be2 f1R Bg1 Re5 Bf2 Rg1 Bf1 Ree6 Be2 Bdc2 Ba6 Bd3 Ka8 Qc2 b8B Qe2 Ba7 Qc2 Be3 Qh2 Kb8 Rg2 Bg1 Rge2 Bf2 R2e5 Nfd6 Rd5 Nf5 Rb5 Ng7+
3rqr1B/BP3k2/4Q2b/pNb1Rr2/3R3Q/7b/1QN1bnbK/q1B1n1QB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 g4 f5 Kg2 c5 b4 a5 e4 f3+ Kh2 f2 d4 f4 g5 h3 g6 h4 d6 f3 b6 c4 b5 c3 d7+ Ke7 e5 c2 b7 Ra7 e6 Nf6 b6 Rg8 g7 Nd5 Ne2 Qe8 Nbc3 Nf6 d5 Na6 b8B Nb4 b7 Nd3 Bg2 f1B Nd4 f2 Ra4 Ra8 Ncb5 Ne1 Qd2 Ne4 Ba7 Be2 d6+ Kf6 e7 f1R d8Q Rf5 d7 Kf7 Rg1 Nf2 Bh1 Rh8 Rg5 Rb8 Bb2 c1B Nc2 Ra8 Be5 Ba3 Rd4 Bc5 Qb4 Rb8 Qb6 Rg8 d8B Be6 Bdc7 Rd8 Qc4 Qc6 Bd5 Rf3 Kg1 Rf4 Nba3 Qd7 Qb2 Ned3 Qcb3 h2+ Kg2 h3+ Kg3 h1B Nb5 Rh8 g8Q+ Ke8 Bc6 h2 Bf6 Bh3 Qbe6 Rh5 Bh8 Be4 Qg4 h1Q Qh4 Qa1 Kh2 Ne1 Bcb8 Rf6 Bf4 Rf7 Rgd5 Rhf5 Qg1 Bh6 Re5 Rf8 Bc1 Bh1 Bg2 Kf7 e8Q+ Kg8 Qee7 Qe8 Qd6 Kf7 Bf3 B1g2 Be4 Bgf1 Bh1 Bfg2 Qe6+
1RBb2K1/3Br3/1r1rr2N/qN1b4/2q4N/1Qn3nQ/2P2bRp/1nB1kN1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 d5 g4 f5 e4+ d3 b6 h5 b5 a5 g6 d4 b7 h4 g7 h3 g5 f3 g6 a4 b6 f4 Ba3 h2 Be7 f2 Nf3 a3 Bg2 f1Q Nh4 f3 Ra2 d2 Bb4 f2 Bh3 d3 Rb2 a2 Bd7 a1B Ke6 Nc6 Kf7 Nce7 b8Q Rh6 b7 Ra7 e5 Nd5 e6 Nge7 g8B Nf5 e7 Nc3 e8B Qa5 g7 Re6 Qg3 Bc5 b8N Bb7 Na6 Bd5 Qh3 Ng3 Qf3 d1R Ba3 d2 Rg1 Rb7 Qe3 Re1 Nc7 d1R Bc8 Rbb6 Rg2 Be7 Bc6 Bd8 Nb5 Qe2 Qf3 f1N B6d7 Nd2 Bh7 Qd3 g8N Re7+ Kf8 R1e6 Nh6 Qd4 Kg8 Qe4 Nc7 Kd4 Qf7 Ke3 Nb5 Qc4 Rb3 Bb2 Be4 Ba1 Bc1 Bb2 Rg1 Ke2 Rg2+ Ke1 Qf3 Ba3 Qf7 Bc5 Qf3 Ndf1 Nd2 Bf2 Rb2 Nb1 Rb3 Ne3 Nf1 Rd4 Rb2 Nd1 Qb3 Rd2 Rg1 Ndc3 Bh1 Be4 Rg2 Rdd6 Ra2 Bd5 Ra1 Qab4 Ra8 Qa5 Rb8
5K1N/r3N1Q1/3bb1rQ/2Rnn1b1/1Bn3NQ/2nB2N1/Pp2qRQ1/3qkr2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 h5 f4 b5 g4 b3 d4+ Kb4 f6 c5 f5 c4 d6 b2 d7 c3 Ke6 c2 Kf7 e5 g5 h3 d5 h4 d6 e4 g6 h2 g7 e3 Qe2 h3 Nf3 Ne7 g8N Ra7 Nfd2 Nd5 Nh6 Nc6 Qg2 e2 Ng4 e1Q Bd3 Rg8 Ne4 Na5 Rf1 h1R Nbc3 b1N Bd2 c1B Rf2 h2 Ng3 Qe2 Be1 Bg5 Bd2 Na3 Rc1 Rf1 Be1 h1N Bd2 N5c4 Be1 Nf4 Nd5+ Kc5 Rc2 Kd4 Bb4 Rg6 Ne7 Nb1 Rc3 Nd5 Rc2 Qb6 d8N Nbc3 d7 Qbe6+ Ke8 Qd1 Nf7 Qee2 d8Q Be6 Rc1 Be3 Nh8 Bg5 Nh6 Ke3 f7 Kd2 f6 Ke1 Ng4 Bfh6 f8Q Bf4 f7 Bd6 Rf5 Nf2 Qg7 Bhf4 f8Q Bg5 Bc2 Nd3 Rf2 Nde5 Bd3 Ra5 Qff6 Ra4 Kf8 Ra7 Ba5 b4 Qb6 b3 Bb4 Be3 Qh4 Bd2 Qe3 b2 Qeh6 Ne4 Rc3 Bg5 Ra3+ Nec3 Ra5 Bd2 Rb5 Bg5 Rc5
n1qqR3/Q3b2N/3n4/5rk1/nbr1r1B1/RQB1RR1b/p1rB1P2/3BK2N b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kf7 g4 Kf6 d4 h5 d6 a5 b6 e5 d7 c5 b7 e3 d5 h3 b5 c4 b6 h4 d6 e4 Qa4 h2 Kd1 h3 Ra3 c3 Bd3 c2+ Ke1 e2 Qb3 a4 Bc4 Ra5 Qa2 Rf5 Nc3 Be7 Bb3 Rh4 Nf3 Nh6 Bd2 c1Q+ Bd1 Nf7 Ng5 Na6 b8R Nc7 b7 Na8 Qb3 Qc2 Rf1 h1N Nh7+ Kg6 g5 h2 Rg1 Ng3 Rf1 Kh5 g6 h1R g7 Rg4 g8B Rgf4 Ra2 a3 Ra1 Rhh4 Rh1 Rc5 Rh3 Rff5 Ra2 Ng5 Be6 Nf7 Nd5 Qc1 Ne3 Rc2 Nf1 Kg6 Rb2 a2 Bc3 Nh5 Ng3 Nf4 Nh1 Nd5 Re3 Ndb6 Rf3 Na4 Rb1 Qf8 d8R Rhf4 d7 Nd6 Re8 Rh4 Nf6 Kg5 d8B Rg4 Bda5 Bd7 Rec8 Qd8 Nh7+ Kh4 Bh8 Rb5 Qb2 Rcc5 Qe5 Qe8 Rbb3 Qc4 Kd2 e1R Qc3 e3+ Kc1 e2 Kd2 Rc6 Ra3 Qc5 Rc7 Qb6 Qb3 Rc2+ Kd3 Kh5 Rc3 Rc4 Rd8 Qc5 b8Q Qc8 Qa7 Re5 Bh3 Bg4 Bb4 Rf5 Ke3 Qed7 Re8 Qdd8 Bd4 Rf1 Ba5 e1B Bg7 Bd2+ Ke2 Rg1 Bh8 Rg2 Re3 Kg6 Nf8+ Kg5 Bb2 Rh2 Bc1 Bc3+ Bd2 Rg2 Ke1 Rh2 Bb6 Bb4 Bd4 Rg2 B4c3 Rh2 Bg2 Rh6 Bh3 Re6 Rg3 Ree4 Nh7+ Kg6 Bf1 Kh6 Bfe2 Bh3 Bg4 Kg6 Rf3 Kh6 Nf8 Kg5 Nh7+
3Nr1R1/n1N3QN/n3Q2K/2B1Bk2/3bnN2/bBp1rb2/r2q1PR1/1r1B2q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 h5 d4 a5 b4 e6 d6 a4 d5 a3 b6 c4 g5+ Kg6 d7 a2 b7 e3 b5 e2 b6 e1N d6 h3 Qd4 h2 Nf3 h4 Nc3 h3 Be2 Ra6 Bd1 Nc6 b8N Nf6 b7 Nc2 Ne2 Ne4 Rg1 h1R Ba3 h2 Bc5 Na7 Rg2 e5+ Kg4 Ra5 Na6 Nb4 b8B Bb7 Nc7 Na6 Rc1 a1B Nf4+ Kg7 g6 Kf6 g7 Ra2 Qd5 Bd4 g8B c3 Ng5 Re1 Qc6 h1R Bgb3 Re3 Ra1 Rf1 Rb1 Rg8 Kh5 Kf5 Nh7 Be7 Kh6 Re8 Bh5 Rh1 Rbg1 Ba8 Rg8 Bb7 R1g2 Rb1 Bhd1 Ba8 Kg7 Bf8+ Kf7 Qg5 d8N Qg3 d7 Bb7 Bb6 Ba3 Bc5 Qh2 Kg7 Qg1 Qd6 Nd2 Ncd5 e4+ Kh6 Rd3 Nde6 e3 d8Q e2 Q8d7 e1Q Qg7 Re3 Nd8 Ba8 Qde7 Qe2 Be5 Qee1 Nb6 Bf3 Nbd5 Ne4 Nc7 Qd2 Qe6+
R3bbQn/2Q1BBq1/7n/1BNqr2q/1k3q1R/P2r3p/Rn2B1bN/1K2R3 b - - 0 1 illegal: No possible last move
2r1b2b/Q2qQQB1/n7/q2N2kr/2n1Rp2/Qr4n1/KPNbBR2/1N4Nn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 d4 Kf6 Kd2 c5 Kc2 h5 Kb3 a5 e4 h3 e5+ Kg5 e6 f5 b6 c4+ Ka2 a4 e7 c3 e8Q c2 b7 a3 d6 h4 d5 h2 d7 h3 d6 Na6 b8N Ne7 Be3 c1B Qb3 Rh5 Bd4 f3 Bg7 f4 Be2 f2 Nc6 f1N Nd4 Nf5 Qef7 Bd2 Nc2 N1g3 Qb8 Qe8 Qa7 Ne3 d8Q+ Be7 d7 Bf6 Qde7 Nc4 d8Q Bd7 Qdb6 Rc8 Qb3 Qd8 Qc3 Be8 Qcb4 Qd7 Qbd6 Kh4 g5 Bd4 g6+ Bf6 Kb3 a2 Qa3 Kg5 Bf8 Qd8 g7 Qd4 g8N Qd7 Qed6 Bh8 Bg7 Rh6 Qdb4 Rb6 Nf6 Rb5 Nd5 Rb6 Nbc3 Rb5 Rf1 a1Q Rf3 Qe1 Ka2 Rbb8 Qd6 Rb3 Bf1 Qe5 Nb1 Qc3 Rf2 Qb4 Ne2 Qa5 Rg1 h1N Qde7+ Kg4 Rgg2 h2 Ng1 Nc7 Qb4 Na6 Re2 Kg5 Re4 Nf2 Qbc5 h1R Be2 Rh5 Qcf8 Nh1 Rf2 Rc6 Qfc5 Rc8 Qce7+
K2b2b1/4b3/1R1R3r/1Bnrn3/1R2Pq1b/3qk1qQ/1Rp2B1B/BNNr2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1n2r1QN/qN2bnR1/1Bq2R2/6NK/P1QbqR1n/2R1N3/Br3p2/4qk1b b - - 0 1 illegal: No possible last move
B1R1b1n1/1b1BB2K/1b2B3/r1QqQRRp/kNR1rrn1/1qn5/2N1P3/5b2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 Kf3 d5 g4 Kd7 c4 a5 b4 f5 b6 Kc6 b7 d3 c5 Kb5 c6 a4 g6 d4 g7 d2 c7 a3 g5 a2 g6 d3 Rh4 Ne7 g8R Bg7 Qc2 d1B Bg2 d2 Nc3+ Kb6 b5 Ka5 b6 Rh7 Nd5 Bh8 g7 Nd7 b8Q Nf6 b7 Ng4 Qc5+ Ka4 Ba3 Ra5 Rc1 a1Q Nb4 Qa2 Rf8 Bb3 g8B d1N Be6 Nc3 Rc2 Bd7 c8B Bd4 Qbe5 Ng8 b8R Re7 Rb5 Be8 Bcd7 Bc4 Rf6 Qb3 Rg6 Bf2 Rg5 Be3 Rb6+ Bb5 Rc6 Ba6 Rh2 Bb7 Rc1 Nd1 Rc4 Nc3 Bh1 Bd4 Rf2 Be3 Kg2 f3+ Kg3 f4+ Kh4 Qa8 Rf1 f2 Nf3 Bd4 Ne1 f3 Nec2 Be3 Rd1 f1B Rd5 f2 Rf5 Bd4 Kg5 Bh3 Bg2 f1R Be4 Rf4 Bf3 Rf7 Kg6 Bf1 Bg2 Rf6+ Kh7 Re4 Rg5 Ref4 Qf8 Rf2 Rc8+ Bc6 Qg3 Ba7 Nd3+ Qb4 Qe7 R6f3 Rdf5 Re3 Qe5 Bb6 Bh1 Rf4 Q7d6 Kb3 Qc7 Qb5 Be7 Qa4 Bhd5 Ree4 Ndb4 Qa3 Qcd6 Ka4 Qc5 Qb3 Rc7 Bb5 Rc8 Qc6 Rc7 Qd6 B5c6 Qd5 Ba8 Bc6 Rc8 Rb5 Rc7 Bb7 Rc6 Ra5 Rc8+
1N1N4/1rRQ1R1R/4b1q1/2Bq1qPn/4Qp1n/2k1b1BR/B2n1n2/2rr1BK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f3 Ra3 Ke7 b4 Kd6 g4 Ke5 e4 Kd4 e5 c5 d6 a5 g5 f5 e6 Qf6 Bg2 h5 b6 c4 d7 c3 d8R+ Nd7 b5 h3 e7 c2 e8B h2 b7 h4 b8Q h3 b6 a4 b7 Kc4 d4 Qh6 d5 Bc5+ Be3 c1R d6 Ne5 d7 Nf6 Nc3 Qg6 Nb5 Ra7 Nc7 Bd4 Rb3 a3 Na6 a2 Ne2 a1Q Nf4 Qa5 Ne6 Rg8 Rf1 h1Q Bf7 h2 Qa8 Nh5 b8B Rf8 Rb7 Kc3 Re8 Bc5 Re7 Rd8 Bd6 Qb5 Rc7 Qb1 Qad5 Rb7 Nb8 Qe4 Bg8 Qg4 Rh7 Qh3 Ke1 f2+ Ke2 Nf3 Bef4 Re8 d8R Nh4 Be3 Re7 Re8 Rf7 Nd8 Rd7 Qf3 Qg4 Ba2 Qe4 Ree7 f4 Ref7 Qee6 Re1 f1N Kf2 Qef5 Be7 Rd6 Re2 Nfg3 Bf1 Be6 Qa4 Rd3 Qd7 Rdd1 Qfc6 Qhe4 Qcd5 h1N+ Kg1 Qd3 Bf2 Ne4 Re3 Nd2 Rh3 Qf3 Bf8 Q3d3 Qe4 Qd5 Qe3 Qdf5 Bg3 Nf2 Qe4 Qdd5 Nbc6 Bd4 Bc5 Be3 Nb8
1bb2NB1/Qn1q4/3NknN1/2Rq2P1/1B2p2B/1rrnBQ2/b1rN4/r3RK2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 c5 f4 e5 b4 a5 b6 h5 g5 e3 d6 h3 d7 c4 b5 h2 b7 a4 d5 a3 b6 a2 f5 e2 d6 c3 f6 h4 Nf3 h3 Be3 c2 Nh4 c1R Nd2 Rc3 Rc1 a1R Ng6 Nc6 b8Q Ke6 b7 Na5 Qa7 Rb8 f7 Qe7 d8B Qd7 Be7 Nf6 Bg2 Bg7 Be4 Rh4 Kf2 e1N Qf3 Nd3+ Kf1 Rh6 Rg1 h1B Re1 h2 Rg4 Ra8 b8B Nb7 Rf4 Rc2 Rf5 Rh3 Bc7 Rb8 Ba5 Qc7 d7 Bf8 B7c5 Bd6 Bab4 Qc6 Bf2 Qd5 Bce3 Bg2+ Ke2 h1Q Bh4 Qh2 Qh5 Qf4 Qf3 Qg4 d8N+ Kd7 Nc6 Ke6 Na5 Bh1 Kf1 Bc7 Qg3 Qd1 Nac4 Qd7 Bc6 Bd5 Nd6 Ba2 Qf2 Qf3 Bb5 Qd5 Qf3 Ra8 Bc4 Bb8 Bb3 Rc3 Bc2 Rh2 Rf4 Rb1 Rc4 Rbb3 Rc7 Ndc5 Be4 Nd3 Rc5 Rg2 Nh8 Re2 Bh7 e4 Ng6 Rh2 Bg8 Rg2 N2c4 Rgc2 Nd2 Bb1 Qb6 Ra1 Qa7 Ba2 f8N+
2b2Q2/2q1bnKB/1q1RB1Nn/1nqrpQr1/1BQ5/1PN2bk1/R2B4/1q5Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 Kg5 g4 c5 d4+ e3 d6 a5 d5 c4 b6 h3 f4+ Kh4 d7 h2 d6 e2 g5 e1N b7 a4 b3 c3 f5 a3 f6 c2 f7 a2 g6 Na6 b8B Nc7 g7 Kg3 Nh3 Ra5+ Qd5 Rc5 Nf4 Nb5 Bd3 Qa5 d8Q Qb6 Rf1 h1Q d7 h4 Qc7 h3 d8Q h2 Qdd7 Qg1 Qcc6 h1B Bd6 Rh3 Bh7 Rh5+ Qf5 Nh6 g8B Rg5 Ng6 e6 Qb7 Nd3+ Kf6+ Ne5 Rd1 Be7+ Kg7 Qc7 Be3 c1Q f8Q Qa3 Bc1 Qa6 Qd4 Qab6 Nc3 Qf2 Qbe4 Qe3 Qb1 Bf3 Rd3 Qg1 Bd2 Qf2 Qh1 Qg1 Rb1 a1Q Rb2 Qab1 Ra2 Qe3 Qc4 Qeg1 Re3 Qf2 Re2 Rd5 Ba3 Qfc5 Bb4 Nef7 Re5 Nh8 Bf7 Rd3 Re4 e5 Be6 N8f7 Re3 Rd6 Rd3 Rd7 Rd6 Rd8 Rc6 Rd5 Rd6
3n4/k2Q2n1/1RqR2rb/1b1Qp3/2NR1P2/Nrb2q2/qR1BN2K/1bN1nB2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 d4 a5 b4 c5 f4 Kc7 Kf2 Kb6 Kg2 e5 d6 h5 g5 e3 d5 h3+ Kg3 c4 d7 h2 d6 a4 g6 c3 g7 a3 Nh3 a2 Na3 c2 Ng1 e2 Rb1 e1N Bd2 c1Q Rb2 a1B Ne2 Nf6 g8Q Ne8 Qd5 Qc6 Nc1 h4+ Kh3 Kb7 b6 Rh6 b5 Rg6 Qg4 Qc7 d8R Bh6 d7 Ng7 Rg1 h1B Kh2 h3 Qf5 Rd6 Rg6 Be4 Qg4 Ra6 Qd1 Ka8 b7+ Ka7 Re6 Qc4 Rf6 Nc6 b8N Qa2 b6+ Kb7 Rg6 Bb1 Qg4 Ka8 b7+ Ka7 Qf5 Re6 Qf7 Re8 Rd6 Re6 Qe7 Rg6 Qe8 Rb6 Qe7 Nd4 Qe8 Rb3 Nc6+ Kb6 b8N Ba6 Na5+ Nc6 N5c4+ Ka7 Rc8 Qb6 d8R Bb5 Qef7+ Qb7 R8d7 Nd8 Rcc6 Qc7 Rb6 Qb7 Kh1 h2 Nc6+ Ka8 Nd4 Ka7 Nde2 Qc7 Rc2 Bc3 Rb2 Qb7 Qg2 Qc7 Rd4 Qb7 R7d6 Qc7 Qfd5 Qc6 Qg5 Nd3 Kg2 h1Q+ Kg3 Qf3+ Kh2 Ne1 Qg4 Qc7 Qc8 Qc6 Qd7+
R4bR1/N1n1k2n/2R4Q/B1bPR3/p2r3r/Qq2nq2/B1b2q1Q/N1Kn2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 a5 e4 h5 d4 f5 Kd2 c5 b4 c4 g5 h3 e5 h2 d6 f3 d7+ Kf7 g6+ Ke7 g7 h4 d5 f2 b6 h3 e6 f4 b7 f3 b5 Qb6 Nc3 Qc7 b6 Rh4 Nge2 Qg3 Nb5 Nf6 g8R Na6 b8Q Nh7 b7 Nc7 Ned4 c3+ Kc2 Ra7 Bc4 f1N Ba2 f2 Bd2 Ne3+ Kc1 f1Q Qa8 c2 b8Q Qff2 Nb3 Qgf3 Rhg1 h1N R1g6 h2 Qg1 Rb7 Na7 Rbb4 d8R Rbd4 Rb1 Bd7 Na1 Ba4 Rb6 Bb3 Rc6 a4 Ba5 Q3g3 Rg5 Qh3 Re5 Qhg3 Kb2 c1B+ Kb1 Ba3 Qb6 Rdg4 Qab8 Bc5 Kc1 Rd4 Qb4 Qh3 Qa3 Bc2 Qb6 Qhf3 Ra8 Qd1+ Kb2 Qd3 Kc1 Qb3 Qb8 Qg3 Qb6 Nf2 Qa6 h1Q Qb6 Kf6 e7+ Kf7 Qa6 Qhf3 Qe2 Nfd1 Qeh2 Bd6 e8Q+ Kf6 Qh5 Qgf2 Reg5 Ke7 Qh6 Bc5 Re5+
3b2r1/R2Nqr2/N2r2NQ/3p1nB1/r1nBq1b1/1K1P4/2N1kBq1/1BRQ1b2 b - - 0 1 illegal: No possible last move
Q1Rr2R1/3k3N/q2B2n1/b1Pbpn1b/n3qR1B/3rR1Q1/2K2N1n/qBB5 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 a5 c4 h5 b4 e5 g4 a4 f6 h3 f5 h2 g5 h4 g6 h3 f7+ Kd7 f6 d3 b6 d4 b5 a3 g7 a2 b7 Nh6 g8R Nc6 b8B Ng4 b6 Bb7 Ba7 Bb4+ Nc3 Qc8 f8R Ba5 f7 Ne7 Qf3 Ng6 Qg3 Bd5 Nf3 Qa6 b7 Rd8 b8B Rh7 Rg1 h1Q Bd6 h2 Ng5 Rh3 Nh7 Qe4 c5 h1B Bb6 Bf3 Re8 Nh2 f8Q Bd1 Bg2 Bg4 Re1 Bh5 Rb1 a1Q Rb4 Ba2 Nd1 Bd5 Qh4 Re3 Nf2 Rf3 Kd1 d2 Qg3 Rd3+ Kc2 d1N Re3 Nc3 Bbc7 Na4 Be7 Qe6 Bh4 Qa6 Bd6 Ra3+ Kd2 d3 Bf3 Rb3 Bd1 Ra3 Bc2 Rb3 Qff3 Rc3 Kd1 d2 Bb1 Rd3 Kc2 d1N Ref8 Ndc3 Rb8 Nb5 Rc8 Bb7 Bc7 Nd6 Rf4 Nf5 Bd6 Ba8 Qe2 Bd5 Qd2 Rf8 Qb4 Re8 Qb8 Rd8 Qa8
kQK1RN2/r3R1n1/1Qn2q2/NP3r2/3nB1b1/pbQ2N2/nN2qB2/2b3qQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 e7 c3 e8N c2 d5 h3 d6 a3 g5 Ra4 g6 Bg7 Be3 c1N Bd3 Qg5 d8Q Na2 d7 Qf6 Nc3 Ne7 Nc7 Ra7 Ne6 Ka8 Nf8 Nbc6 Bf2 Rh5 Be4 Bh6 g7 Bg5 g8Q Bh6 Ke2 f3+ Kd3 f4 Kc4 Nf5 Qh8 Ng7 Na4 Rf5 Nb2 Bg5 Qd5 Bh6 Kc5 Bg5 Bh4 f2 Nf3 f1Q Bf2 Qe2 Rhe1 h1B Qc7 h2 d8N Bg2 Nb7 h1N Na5 Ng3 Rac1 Be6 Kd6 Bh3 Rc4 Bf7+ Kd7 Bg4 Kc8 Bh6 Qdd8 Bg8 Rc5 Bb3 Re5 Bg5 Re8 Bh6 Nh4 f3 Qd3 Bc1 Qc3 Qc4 Qh6 Ne2 Qh2 Nd4 Qh1 Re7 Re3 Qe2 b7+ Ka7 Be1 f2 Nf3 f1Q Bf2 Qg1 Qg6 Kb6 b8Q+ Rb7 Qd6 Ka7 Qgh6 Ka8 Qhf4 Nb8 Qb6 Nbc6 Bc2 Qc4 R3e7 Qe2 Be4 Ra7 Qfb8#
1N1K1kn1/rq1bN1BB/4Q2r/Qp1rr1b1/n4P1N/5R2/R4Qq1/Qbn4N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 h5 Ke3 e5 Ke4 b5 d4 c5 g4 b3 a4 c4 d6 b2 Kd5 c3 g5 e4 a5 c2 d7+ Ke7 g6 h3 g7 h4 a6 h2 a7 e3 f6+ Kf7 Qe2 h3 Ra2 Nh6 g8N Qc7 d8Q Qc3 Ne7 Qd2 Kd6 Bd7 Kc7 Qd3 d5 Qe4 d6 Rh7 Nc3 b1Q Bb2 c1N Nd1 Qg2 Nf3 Ng8 Nh4 Bh6 f4 Rg7 Qf2 e2 Qc8 e1R Bd3 Na6+ Kd8 Nc5 Bh7 Qbe4 Rf1 Kf8 f7 h1R Bf6 Rb8 a8Q h2 Ba1 Bg5 Qa4 Bh3 d7 Qb7 Qa6 Ra8 Qe6 Ra7 Qa8 Re5 Bc3 Rg6 Bd4 Kg7 f8N Rh6 Bb2 Ra3 Qa5 Na4 Bd4 Rd3 Qc3 Rg1 Qa1 h1B Qf5 Ra3 Qe3 Nb2 Ke8 Qgc6 Nf2 Ra7 Qe1 Be4 Nh1 Bb1 Qd2 Qd5 d8Q Qg2 Q8a5 Na4 Rf3 Rd1 Qf2 Bg4 Bb2 Rd5 Nd7 Bh3 Kd8 Bg4 Rc3 Re2 Qe5+ Kf7 Rf3 Bgf5 Qd6 Be6 Bg7 Ree5 Nb8 Bd7 Bf6 Kf8 Qe6 Qf1 Bh8 Qg2 Bg7+
n2RRK2/RB5Q/5BB1/p2qbN2/5rqn/1q1PrRbk/5NbB/1r2Q2q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 b4 c5 e4+ f3 b6 h5 g3 f5 d3 a5 b7 c4 b5 f4 d6 c3 d7 c2 Ke6 h3 Kf7 h4 b6 h2 e5 h3 e6 Qg5 d8R Bg7 e7 Na6 e8R Rh4 b8B Be5 b7 Nh6+ Kf8 Nc7 Nd2 Nf5 Ne2 f2 Nd4+ f3 Bg2 f1R Qe1 f2 Bb2 c1B Ne4 Bcf4 Rg1 h1Q Rd1 Nd6 Nf5 h2 Bf3+ Kh3 g4 Qg6 g5 Bg3 Bh5 Qe6 g6 Rf4 g7 Qb3 g8B Be6 Ra1 Bd5 Bg6 Qg2 Be6 h1Q Bc8 Ra6 Rc1 Na8 Rc7 Qf3 Rce7 Qg4 Bc7 Rc6 b8Q Rc2 Bc3 Re2 Bb7 Re3 Qa7 Qhf3 Rg2 Rh1 Bb2 f1Q Rf2 Rg1 Ba1 Qh1 Rf3 Qfg2 Qc3 Rb1 Qe1 Bh8 Bf6 Bc6 Nd4 Nf5 Rf7 Nh4 Nf5 Qga2 Bb8 Qd5 Rc7 Qab3 Nf2+ Kh2 Qc5 Kg2 Qe7 Kh2 Qh7 Kg2 Bg5 Be5 Bf6 Kh2 Ba6 Kg2 Ra7 Kh2 Bb7 Kg2 Ne4 Kh3 Qh8 Bd4 Rd7 Qdc4 Rf1 Rf2 Ra6 Bh2 Rdd8 Bd5 Bg3 Rf4 Qh7 Be5 Ra7 Qcb5 Bf2 Qc6 Bg1 Bg3 Bh2 Qd7 Nd2 Bf3 Ne4 Bg2 Rf3 Qdd5 Nf2+
Q3rQR1/1B5n/1N1Q1n1R/p3N3/3K2kq/PqB2bN1/1q3r1b/1Qb1Nrq1 b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Kd7 e4 a5 d4 b5 h4 f5 e5 g5 d6 Ke6 c6 b4 d7 b3 a3 b2 h5 f3 Ke3 g3 c7 f2 h6 g4 h7 g2 Nf3 g1Q Rh6+ Nf6 Ne1 g3 Ba6 g2 Nc3 b1Q Ne4 Rg8 h8N Bb7 c8N Qb2 Ng6 Nh7 Nb6 Qh4 d8Q Nd7 Ng3 Bf3 Bd2 Ndf6 Qb1 f1R+ Kd3 f4 Bc3 Rg7 Bb7 Rf7 Qb8 Bg7 Qf8 Re8 Kc4 Qe3 Kc5 g1B Ra2 Qb3 Rg2 Bh2 Rg1 Qe2 Rg2 Ree7 Qa8 Re8 Rg1 Rff8 d5+ Kf7 d6 Ke6 d7 Qeb2 d8Q Bh8 Ne4 Kf5 Ng3+ Kg4 e6 Rf2 e7 Bg7 Rh5 Bh6 Kd4 Rg8 Qd5 Kh3 Nh8 Bg4 Qe5 f3 Nc2 Re2 Nh1 f2 Qc1 f1Q Qb1 Rf2 Ne1 Rb8 e8Q Bc1 Qf8 Re8 Rh6 Bf3+ Rg4 Qg2 Qed6 Rg5 Nd7 Rf1 Nb6 Rge5 Ng3 Re2 Qa7 Ref2 Qa8 Bf4 Rg7 Qg1 Ng6 Kg4 Rg8 Bc1 Ne5+
1R1N1rQq/4QBq1/2r1b2p/1Rb1Rk1n/b4N1R/B4r1q/3PK3/N2n2qN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 f5 e4 c5 g5 a5 b6 a4 b7 a3 b5 h6 d6 Ke6 d7 f3 e5 h3 g6 f4 g7 f2+ Ke2 f3+ Ke3 a2 b6 h2 Be2 f1Q Bd3 c4 Nh3 f2 Qe2 c3 Bc2 Ra3 Bg6 Na6 b8R Nb4 b7 Nf6 Bf7+ Kf5 g8Q Nh5 e6 Qg1 e7 f1Q+ Nf2 Nd3 e8N c2 Nc7 Bc5+ Kf3 Rc3 Ba3 c1R Qe7 Qh3+ Ke2 Nb2 Ne6 Rf3 Nf4 Qf8 d8N Be6 Nd1 Qgg7 Nf2 Nd1 Re1 Qg1 Nh1 Qfg7 Bb2 Bb6 Na3 Rc6 Nc2 Bc5 Rb1 a1Q Ba3 Qac3 Rb4 Qcf6 Na1 Qb2 Nf2 h1B Rb5 Bg2 Nh1 Qbc3 Ra8 Qcf6 b8R Qfd4 Qge8 Rf8 Ra4 Qh8 Nd3 Qdg7 Rh4 Rf1 Nf4 Be4 Q8d7 Bc2 Qd4 Bcb3 Qc4 Ba4 Qb3 Qb2 Qg3 Rf3 Qg8 Qbg7 Rf1 Rb3 Rf3 Rc3 Re3 Rb3 Re4 Rf3 Re5+
2b5/B3rNqb/2QQn1Bp/2Bq2QK/1P3RN1/b1R1Qq2/2B2nn1/qk1r4 b - - 0 1 illegal: No possible last move, all moves rejected
3RBr2/1q4q1/3N3p/3r2PQ/Bb2NkB1/1b1brN1N/QRn3KB/2n2n1r b - - 0 1 illegal: No possible last move
BRQ2r2/2n2RR1/1Kb2P2/1QB1n1k1/BB6/1Nqq1prR/2b4q/3rq1bN b - - 0 1 illegal: No proof kernel
1brB1N2/B2R3B/R1q1p1P1/bbr3n1/2R1kB1b/8/4qQK1/1Qq1RnNn b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 f4 Kg6 Kf2 a5 b4 h5 d4 c5 g5 Kf5 d6 a4 d7 h3 g6 e6 d5 a3 b6 e3+ Kf3 h4 b5 e2 b7 e1B b6 a2 d6 h2 Be2 h3 Na3 Ne7 Nc4 Rh5 Ne5 Bh4 Bb5 Nbc6 b8B c4 b7 c3 Ba7 c2 b8R Ba6 Rc8 Nd5 Rc7 Qf6 d8R Ne3 d7 Nf1 Bd2 Qg7 Qb1 Bd6 Rdc8 Bb4 d8B Ba5 Nd7 Qb2 Nf8 Rb8 Ba4 Bb5 Rd7 Qe5 Rcc7 Rc8 Bde3 Nb4 Bd2 Nd3 Rc4 c1Q Rc2 Nc5 Be3 Be7 Kf2 Ke4 f5 Bd6 f6 Bb8 f7 Qeb2 Bf4 Rf5 Nh7 Rh5 f8Q Rf5 Nf3 Rg5 Rg1 h1Q Qf7 h2 Nf8 Ng3 Rgd1 Nf1 R1d6 Rd5 Ra6 Qe5 Ng1 Qh5 Qb2 Qhd1 Rb1 a1B Qa2 Bb2 Ra1 Bf6 Qb1 Ne3 Kg3 Bh4+ Kh3 Nf1 Qf6 Qe2 Qd4+ Kf5 Qf2 Bc4 Bc6 Re5 Ba4 Qc6 Bb5 Ne4 Kg2 h1N Rd3 Rc5 Qb4 Qcd2 Re1 Qe8 Qb1 Qc1 Rdd6 Qe7 Be8 Qd7 Bf7 Ng5 Bg8 Bb5 Bh7 Ke4 Rd5 Qc7 Rd7 Qc6 Rc4#
Nq6/3B1N1r/2P1b3/bQn1Rb1R/1R1Bq1n1/kb1rR1Qp/2B5/2Kn1Br1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 f5 g4 a5 c4 h5 g6 a4 g5 a3 b6 f3 b5 Kc5 g7 Kb4 e5 d5 c5 h4 g6 a2 c6 d3 b7 f2 e6 f4 e7 f3 e8B d4 b6 Nh6 g8Q Na6 b8R Nc5 b7 Ng4 g7 Bf5 Qe2 Rh7 Bd7 Ra3 Bb2 h3 Nc3 Rb3 Re1 a1Q Na4 Qb1 Nb6 Qe8 Ra8 Qe4 b8R Bd6 Rb7 Bc7 Ra5 Ra3 Ba1 Rc3 Rb5+ Ka3 Na8 Ba5 Rb4 Rb3 Rb5 Qb2+ Kd1 d2 Qec4 Rd3 Re3 Be6 Qb8 Bf5 g8B Be6 Qg3 Bf5 Be2 f1B Qd5 f2 Nf3 Bg2 Re1 f1R Ng5 Rg1 Bf1 Bh1 Bf7 Bg2 Bg6 Qb1+ Ke2 d1N Bc3 Qb3 Qde5 Qg8 Nf7 Qb8 Ba1 Qf4 Bc3 Bd5 Ba1 Bde6 Qd5 Rb3 Kd2 d3 Bd4 Qe4 Qc4 Nb7 Re5 Nc5 Qb5 Rc3 R1e2 Rb3 Kc1 Rc3+ Rc2 d2+ Kb1 Rd3 Rcb2 Nc3+ Kc2 d1B+ Kc1 Ba4 Rf2 Bab3 Rf4 Nf2 Rh4 Ng4 Rh5 Nd1 Qf2 Rc3+ Kd2 Qf4 Qh2 Bd3 Be4 Qf3 Qg3 Bdc2 Bd5 Bcf5 Be4 Qf4 Bb1 Qe4 Bc2 Rd3+ Kc1
K3b1R1/5qNr/Bp1R1b2/B2nN3/P1qk4/2R1r2Q/2Rbq1Qn/bBB4r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 h5 a4 h3 g4 h4 f4+ Ke4 d4 e5+ d6 b3 d5 b2 f6 h2 f5 h3 g5 Qe7 f7 Rh7 g6 Bg7 f8Q Bf6 g7 Qf7 d7 Ne7 g8B Nbc6 d8R Nd4 d6 Bd7 Qd2 Nd5 Ra2 Be8 d7 Nf3 Na3 b1Q Ne2 Qd3 Nd4 Qe2 Nc4 c6 Kd6 c5 Rc2 b6 Kc6 Rc8+ Kb7 Ra8 Rg1 h1Q Qfh6 h2 Rg3 Qhg2 Qh5 h1R Qh3 Nh2 Rgc3 Qgg4 Ne6 Ra5 Qg5 Rb5 Rc8 Rb3 Ng7 Kd4 Ka8 e4 d8R e3 Ne5 c4 Rd6 Qe4 Qgg2 Ra3 Rb3 c3 Rb8 Qc4 Bd3 e2 Rc8 Rh5 Bh7 e1B Bg6 Rh7 Rb8 Bg5 f6 Bed2 Bf5 Qf3 Bc8 Qe2 Ba6 Qfh5 f7 Bf6 f8B Qf7 Rcb2 c2 Rc3 Rb3 Be7 Bb5 Rg8 Be8 Rc6 Ra3 Bb4 Rb3 Be4 Ra3 Ba5 Rb3 Rg3 Re3 Rd6 Bc3 Ra2 Ba1 Bg6 Re4 Rc3 Re3 Bd2 c1B Bb1 Ba3 Rac2 Bb4 Ra3 Bbc3 Bc1 Bd2 Rac3
2rQ2KB/2Q3nN/P4pk1/N2nQr2/3Rq3/2qR2b1/RrBqqQb1/3Rb3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 g5 Kf3 b5 Ke4 c5 Ke5 f3 d4 c4 e4 b3 h4 b4 a4 g4 a5 c3 d6 c2 a6 b2 d7+ Ke7 d5 b3 h6 g3 h7 f2 h5 g2 h6 Qb6 d8R Bh3 Qd2 Qg6 Nf3 g1B Ra2 Be6 Na3 b1Q Ng5 b2 Nc4 Bh3 Na5 Nf6 Bd3 f1Q Qf2 Qg7 Bd2 c1Q Bc2 Rg8 h8Q Bg2 h7 Qe2 Bc3 Nc6+ Kf5 Rb8 e5 Nb4 e6 Bh2 Rd1 Nh5 Rd7+ Ke8 e7 Qcd2 d6 Bg3 Bf6 Rd8 Bc3 Qgd4 Qg7 Nd5 h8Q Rc8 Nh7 Qa1 Qe5 b1R Qhg7 Q4e3 Bd4 Rb4 Bc3 Rf4+ Kg5 Qe4 Kh6 Rh8 Rb7 Qac1 Rb3 Rb8 Rba3 Rb2 Bd4 Rf5+ Re3 Kd7 e8R Qc3 Rb8 Q1d2 Rb4 Be7 Rc4 Rc8 Rca4 Kd8 d7 Beh4 Qc7+ Ke7 d8Q+ Ke6 Qgg5 Ng7 Rd3 Ne8 Bh8 f6 Rad4 Ng7 Qf3 Be1 Qf2 Bg3 Kg6 Qc4 Qcd7+ Ke5 Kf7 Qcc3 Kg8 Q4e3 Qg1 Qe4 Qh5 Kf4 Qhe8 Kg4 Qe5 Kh5 Qdc7 Kg6 Qf2
2n2r2/1B5n/p5Rq/B1B3N1/QPbkb1K1/bQ1nrRN1/2r1Q3/3BQ1qr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 e4 f5 d6 h5 b6 c5 b7 c4 g5 c3 d7 h3 g6 h4 g7 a6 Ne2 h2 Bg2 c2 Ra3 h3 Ng3 Qc7 d8B Qc6 Rg1 h1Q Ba5 h2 Nc3 Nf6 g8B Rh3 Bb3 Nbd7 b8Q+ Kd4 Qe2 Nb6 d3 Qe6 e5 Bb7+ Ne4 Nh7 Qe1 Qg8 e6 Nc8 e7 Qg6 e8Q Qh6 Bcd2 c1N Bd1 Bb4 Rb3 Ba3 Bdb4 Ra7 Bf8 Bc6 Rc3 Rc7 Qb3 Bd5 Qea4+ Rc4 Kf2 f3 Ng5 f4 Bd6 Be4 Bc5+ Kd5 d4 Nd3+ Kf1 f2 Ke2 f3+ Ke3 Nc1 Kf4 f1B Kg4 f2 Rf3 Bfd3 Qbb5 f1R b4 Rc3 Qe8 Kc4 d5 Rc2 d6 Be2 d7 Nd3 d8Q Rf2 Rf1 Qg1 Qf6 h1R Qfc3+ Kd5 Qh5 Nc1 Qhe8 Bc4 Qcb3 Nd3 Rf6 Rf3 Rg6 Rf5 Rf3 Rf8 Bd6 Kd4 Qe6 Bb7 Q6e2 Be4 Bc5+ Kd5 Rf7 Ke5 Nh5 Re3 Ng3 Bb7 Bd5 Bc6 Rf3 Ba8 Be6 Be4 Bd7 Kd5 Bc6+ Ke5 Bd6+ Kd4 Bb7 Bc1 Be7 Ba3 Bc5+
1q1QR1BB/1bN4P/N1p1b1bk/nr6/1q6/1r2q2Q/3rN1KR/BN3Bbn b - - 0 1 illegal: No possible last move, all moves rejected
1B5k/B1q2R1p/r2nQ1Pr/1n3bB1/2qQB2r/bN2Q2n/1r1NQ1K1/b1R5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 d4 a5 e4 f5 b4 Kf7 g4 Kg7 g5 h3 b6 a4 d6 f3 d5 a3 g6 c4 b7 c3 b5 a2 e5 f4 d7 h2 b6 c2 e6 Na6 b8B Qc7 d8B Ne7 b7 Nf5 e7 Nd6 e8Q Bf5 Bd2 c1N Bd3 Ne2 Be4 Be7 Kf1 f2 Kg2 f1R Nf3 Ng1 Qe2 Nh3 Nd4 Re1 Rg1 h1R Nb3 Ra7 Rf1 f3+ Kg3 f2 Kg2 Rc1 Bg5 Rc4 N1d2 Rf8 Rae1 a1B Rc1 Kh8 Qd7 Rc2 Qe6 Rb2 Qe3 Ra8 Ba7 Rf7 b8Q Rf6 Qb5 Rb8 Qbe2 Rb4 Bb1 Rh4 Bd3 Qb8 Bf4 Nc7 Be4 Ncb5 Bc7 Rh6 Bg5 Qb7 Bcb8 Bf8 Rc8 Qc7 Rc1 Rh4 Rd8 Rh6 Rd7 Rh4 Rf7 f1Q+ Kg3 Qf4+ Kg2 Be7 Bb1 Qfc4 Be4 Nb7 d6 Rh6 d7 Ba3 Qe7 Ra6 Qe6 N7d6 d8Q+ Ne8 Qdd3 Ned6 Qdd5 Rg1+ Kf3 Rg4 Qdc5 Rf4+ Kg2 Rfh4 Qcd4+
2RQ2K1/N2Bb1P1/3nNR2/1NR5/r2Q1Rb1/B1qp1rqk/N1b4n/n3q2b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 b4 h5 g4 d3 f4 a4 c4 a3 b6 h3 c5 e4 b5 e3 c6 h4 b7 e2 b6 e1N c7 d2 Ne2 d6 Nec3 a2 Bb5 h2 Ba3 h3 Rf1 Nh6 Bd7 Nf3 Nb5 h1B N1c3 h2 Rc1 a1Q Na2 Ra4 Rc5 Nc6 b8R Nf7 b7 Be7 Ra8 Qb2 b8Q Qc3 Ra6 Ncd4 g5+ Kg7 g6 Kf6 g7 Nc2 Qa1 Rf8 Rc1 d1B Rb6 Ba6 c8N Qc7 Nca7 Bc8 Qb2 Na1 Rbc6 Ba6 Qd8 Bc8 Qd2 Bc2 Ra6 Bg2 Rb6 h1Q Qd4+ N7e5 Rf1 Nh2+ Rf3 Qhe1 Rbc6 Kf7 f6 Kg6 Ke6 Kh5 f5 d5 f7 Bh1 f6 Qb8 Rf4 Nc4+ Qe3 Nd6 Ra6 Re8 f8R Qc7 Rg8 Rf8 Qe4 Qcg3 f7 Qca5 Rac6 Qac3 Rb6 Nf5 Qe3 d4 Qe5 d3 Rbc6 Re8 f8N Kg5 Kf7 Kh5 Rf3 Kg4 Ne6 Kh3 Rf8 Nd6+ Kg8 Qb4 Rf4 Qbc3 Qb6 Rd8 Qd4 Re8 Kh7 Rd8 R8f6 Rf8 Qd8 Rf7 Rg6 Rf5 Kg8 Rf7 Rf1 Rf3 Rf6 Bb7 Rc8 Be4 Qe5 Bf5 Qd4 Bg4 Rf2 Re3 R2f5 Rf3 Rf4
b1q5/q4p2/R3n2B/4Q2r/2Nbk2r/2nRN3/qR1qRQKP/rB1N2nN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 c5 e4 g5 b6 a5 b7 f3 b5 a4 b6 c4 Bd3 c3 Qc2 a3 Nh3 a2 Re1 Be7 Re2 Na6 b8R Nf6 b7 g3+ Kf1 f2 Kg2 f1R Nf2 g4 Bh6 Qa5 Nh1 Rf5 Qb2 c2 Nc3 c1Q Bb1 Qb4 Nd1 Nc7 Qd2 Rh5 e5+ Kd7 d6 Ke6 d7 Kd5 d8N Ne4 e6 Bc5 e7 Nc3 e8Q Ne6 Nc6 Qc4 Qe1 Qd2 Ne5 Bd7 Qf1 Bc6 Qf2 Qa6 Nc4 Rh4 Bg5 R8h5 Bh6 Ra7 Kg1 g2 Nce3+ Kd6 d5 Ke5 d6 Bd4 Rd8 Ra8 b8N Qc8 d7 Ra6 Qe7 Ba8 Rg8 Ra4 d8R Ra3 Rd7 Ra6 Rb7 Ra7 Rb2 Ra6 Rc2 Ke4 Rd8 Ra7 Nc6 Raa5 Qg3 Ra4 Kf2 g1N Kg2 Ra7 Qe1 g3 Ne5 Ra3 N5c4 Ra6 Kf1 g2+ Kf2 Bh8 Rd3 Bd4 Rb2 Ra4 Bc2 Ra3 Kg3 Ra6 Qf2 Raa5 Rc1 a1Q Bb1 Qa2 Qd6 Qb3 Rcc2 Ra1 Ra2 Qb2 Ra6 Qa2 Rb2 Nh3 Qe1 g1Q+ Ng2+ Be3 Qb8 Qf1 Qb5 Ng1 Qg5 Qf6 Qf2 Qd4 Qb5 Qa7 Qa5 Nf3 Qc7 Kf5 Qd6 Bd4 Nge3+ Ke4 Kg2 Ng1 Qe5+
2Q3K1/1Nqn1pbr/1Qr5/4B3/r2RBPRk/1Bq1N1b1/2qRbBb1/1R2n3 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 a5 Ke3 e5 g4 Ke7 c4 Kf6 d4 Kg5 f4+ Kf6 d5 h5 b6 h3 b7 h2 c6 a4 c7 h4 g5+ Kg6 d6 h3 c5 a3 d7 a2 c6 Ra5 Nc3 Nf6 Bc4 Qe7 d8R Qc5+ Rd4 Bg7 Qb3 Kh5 g6 Nbd7 b8B Ba6 c8Q Rh7 c7 Kh4 Nd5 Ra4 Rb1 a1Q Ne2 Qb2 Nec3 Qc2 Rd1 h1R Rd2 h2 Nb5 Rf1 Bd3 h1B Nd6 Bg2 Nb7 Qc6 Qb5 Nc5 Qb6 Nfd7 Bb2 Rc1 Ba7 Bb5 Bc4 Nd3 Bb3 Ne1 Ba1 Bh8 g7 Be2 g8R Qd6 Rg5 Bg7 Rg4+ Kh5 Kf2 e3+ Kg3 e4 Bc3 Bb5 Ba1 e2 Ne3 Qdc6 Qh8 Ba6 c8B Qc7 Qe8 Qb2 Qh8 Rc6 Qf8 Qc2 Bc3 Nb8 Bf5 Nd7 Qc8 Bd3 Nd5 e3 Be4 Kh6 Kh4 Bc4 Rg3 Ba6 Kg4 Bc4 Kf5 Kh5 Bb2 Kh4 Rg5 Nf3 Bc3 e1Q Ba1 e2 Ne3 Qec1 Bb2 e1B Rg4+ Kh3 Bc3 Be2 Rd5 Ba6 Nc4 Bf8 Qb5 Qd3 Be5 Bg3 Bf2 Ne1 Ne3 Qcc3 Rd4 Qdc2 Qb4 Be2 Qb6 Nc5 Bd6 Bh6 Kf6 Nd7+ Ke7 Bg7 Be5 Bh8 Rg7 Kh4 Ke8 Nb8 Kf8 Nd7+ Kg8 Bd1 Rg6 Bg7 Rg5 Be2 Rg4+
BbN1n1q1/1B1qP3/2qp2bK/Rrn1Q3/2Nn1BR1/3N2Nk/r7/qr1Q2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 h4 Kf6 b4 Kf5 c4 Kg4 e4+ f3 c5 g5 c6 a5 e5 f5 c7 d3 Ke3 d6 b6 a4 b5 a3 h6 a2 h7 d2 h5 Ra5 b7 Nd7 b8B Nc5 b6 Nf6 b7 Be7 h6 Qd7 e6 Ne8 Bg2 Bd8 e7 Rb5 Ne2 f2 Ba7 f1R b8N Bb7 c8B Be4 Na3 Bc7 Nc6 Bb8 Nc4 f4+ Kd4 f3 Ke3 f2 Rg1 Bf5 Bb7 Bg6 Ng3+ Kh4 Bh1 g4 Kf4 Kh3 Kg5 Re1 Bb6 f1Q Na7 Qf3 Nc8 Qfc6 Be4 Rf8 h8N Rf2 h7 Rg2 Kh6 Rge2 Rb1 a1N Nf7 Nc2 h8Q Nd4 Ra1 Rg2 Qe5 Rh2 Ne2 g3 Ra5 g2 Ng3 Rf1 Qa4 d1Q Bf4 Qb1 Qd1 Qa1 Ba8 Qcc7 Beb7 Qcc6 Qh8 Re1 Nfe5 Rf1 Nd3 Re1 Rh1 g1Q Qe5 Qgg2 Rg1 Qga2 Ne3 Qg8 Nc4 Ra2 Nf1 Ree2 Rg4 Reb2 Ng3 Ncb3 Bc5 Rb1 Bb4 Nc5 Be1 Nf3 Bf2 Nd4 Bg1
4BB2/3pk1QR/nBQ2r2/5r2/r1q1P3/rBR1N1KR/2qbbRb1/2n1q1N1 b - - 0 1 illegal: No possible last move, all moves rejected
bqn5/2Pk1rB1/1r1RR3/1nb5/1rQNq1RQ/1p5K/q3RbB1/3BBbN1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 b5 f4 g5 Kf2 e5 Kg2 d5 a4 b3 c4 b4 h6 d3 h5 e4 c5 e3 f6 b2 f5 d2 f7+ Kd7 f6 d4 c6+ Ke6 h7 b3 a5 d3 a6 g4 c7 g3 h6 e2 a7 e1R Na3 b1Q Nb5 Nc6 Qe2+ Kd7 Rh4 d1B Rg4 d2 Kh3 g2 Qc4 Nd4 Ra2 Ne7 Be2 Rb8 a8B Rb6 Bb2 Ba6 Bc3 Bc2 Bd1 Qb8 Be4 Rg8 h8B Rf1 h7 Nc8 Bg7 Bc5 h8Q Rd8 Bb7 Be4 f8R Bd5 f7 Qe4 Re8 Rf2 f8R Rf7 Nf3 g1B Re6 Bf2 Qh4 Re8 Ng1 Ree7 Na7 Nb5 Nc6 Rf4 Rh8 Ref7 Nd4 Bc6 Rhh6 Bd5 Bf3 d1Q Be1 Qd2 Bd1 Qa5 Re2 Qa2 Qc2 Bc4 Bd5 Bb7 Rc6 Ba8 Rhe6 Qh7 Bg2 Qe4 Rd2 Bf1 Qc4 R4f5 Re2 Rd5 Nf5 Rd2 Nd4 Rc2 Qb4 Rc4 Qc3 Ra4 Qc4 Rb4 Rcd6+
qNnn2q1/1QP2N2/2b1p1rb/2kR2B1/rR4N1/2r2B2/1q1bK2R/N1q1QR2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 b4 Kd7 g4 Kd6 f4 h5 f6 a5 b6 h3 b5 h4 f7 h2 b7 h3 b6 d3 g5 a4 g6 e6 f5 d2+ Ke2 a3 g7 d4 f6 a2 Nf3 Nc6 b8R Ra4 b7 Rh6 Na3 Rg6 Bg2 Nge7 g8N Bd7 Ng5 Nc8 Bf3 Bh6 f8R Kc5 Qe1 d1R f7 Rd3 Nf6 Rc3 Nc2 Be8 Rb1 a1B Ng4 Bb2 Be3 Bc1 Na1 Bd2 Rd1 Qb6 Rh8 Qb2 Rf1 h1Q f8N h2 Nf7 Bd7 Bg5 Nd8 Rh7 Bc6 Nd7+ Kb4 c5 Qg1 Rh8 h1Q Rh7 Bf8 Rh2 Bh6 Ra8 Qg3 b8Q+ Kc4 Qb7 Qb8 Rb1 d3+ Kd1 Qg2 Ra5 Qa8 Nb8 Bb5 c6 Kc5 c7 Qg3 Ra7 Bc6 Rfh1 Be3 Ra6 d2 Ke2 Qg1 Rb6 Qg3 Rb4 d1Q+ Kf1 Qdc2 Rd1 Bd2 Ke2 Qcc1 Rf1 Qf4 Nd6 Qf8 Nf7 Qg8 Nc2 Bf4 Rd7 Bd2 Na1 Qf8 Rd6 Qg8 Rd5+
1n2qQQk/2PBp3/bKR2nr1/1QQ1Nq2/3r1r2/2b2q2/1n4BB/3NBqR1 b - - 0 1 illegal: No possible last move, all moves rejected
N2k1q2/2p1n1R1/4rnPK/n1BB2BB/q1n5/q4Q2/1N4bb/1RrR1QrR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 Kf3 a5 b4 h5 g4 a4 e4 a3 d4 h3 e5 h4 d6 h2 b6 a2 d5 h3 e6 Ba6 b5 Qh4 e7 Qe1 d7+ Kf7 d8B Ke8 b7 Kd7 d6 Nf6 g5 Rg8 b6 Nc6 b8R Qa5 b7 Qa4 Bc4 Na5 Bd5 Bf1 Be3 Ra6 Nd2 Bh6 Rb1 a1Q Qc1 Q1a3 Nc4 Rc6 Ne2 Bg2+ Kf2 f3 Kg3 f4+ Kh4 f2 Nb2 f1R Bc5 f3+ Nf4 f2 Qd1 Bg7 Qf3 Rc1 Rc8 f1N b8Q Nd2 Qb5 Bh6 Qbf1 Ndc4 Rb8 Bf8 Rb3 Bg7 e8B+ Kc8 Bh5 Kd7 Rg1 h1Q Rb4 Qh2 Rh1 Qg1 Rb3 h2 Rd3 Qe3 Rd1 Qe8 Be7 Qf8 g6 Rh8 Kg5 Rh7 Rg1 h1N Bd8 Ng3 Rh1 Nf5 Be7 Kc8 d7+ Kb7 d8R Rh6 Rd7 Kc8 Q3e2 Re6 Qef3 Bh8 Bd8 Rh7 Rg7 Ne7 Bg4 Rh3 Bh5 Rg3+ Kh6 Bh3 Bc6 Rg1 Nd5 Bg2 Nb6+ Kb8 Qf4 Nfd5 Bb5 Nec6 Na8 Kc8 Bg5 Nce7 Bc6 Kd8 Qe3 Qf4 Rh7 Be5 Qg3 Qf8+ Rg7 Bf4 Qgf3 Bh2 Bd4 Nf6 Bd5 Nb3 Bf2 Nba5 Bc5
2q1Q1N1/P4K1k/2q2Np1/3rB1bq/B2bn1q1/r3nbQ1/B5B1/NNR1r2R b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 b5 Ke3 c5 Ke4 c4 h4 c3 d4 g3 a4 f6 e6 g2 Kf5 c2 Kg6 b3 e4 f5 d6 f4 h5 b2 h6 f3 d5 b4 h7 b3 e5 f2 a5 Qh4 d7+ Ke7 d8N Qb4 d6+ Ke8 e7 Bg4 a6 Nd7 Bf4 c1Q Nf7 Nc5 Qd3 Ne4 Qg3 Qc8 Ne2 g1B Nh6 Bf3 Nd4 Ngf6 Ng8 Nd5 Bg2 f1Q Nc2 Qfb5 a7 Bd4 Rc1 Ne3 Rh1 Qbc6 Rc1 Kd7 e8B+ Ke6 d7 Be7 d8Q Bg5 Rh1 Rb8 Rc1 Rb5 Bd7+ Kd5+ Kf7 g6 e6 Ra5 e7 Ra3 e8B Qbb5 Nd2 b1Q Be5 b2 Rh1 Qe1 Rc1 b1R Na1 Qg1 Qe7 Qe2 Qd8 Rb5 Nb1 Qh2 Qe7 Qh5 Bg4 Qec4 B4h3 Qcg4 Bd7 Qc8 Qe8 Rba5 Ba4 Q4c6 Nh6 Rg8 h8N Rc5 Qe7 Rd8 Qe8 Rc2 Ng8 Re2 Bf1 Re1 Bhg2 Nc3 Bfb5 Ke4 Bc4 Kf5 Ba2 Rd5 Kg7 Ne4 Nf7 Nc5 Bf6 Ne4 Ne5 Bh6+ Kf7 Bf4 Bh8 Kg5 Nf6 Kh6 Ned7 Bg5 Ng8+ Kh7 Bg7 Q6a6 Be5 Qac6 Ndf6+
2rn1bqN/p2Br2q/Q2Q1Kb1/Rr3QR1/2NR2R1/n6b/6PB/kn2n1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 c5 d4 h5 b4 f3 e3 c4 b6 f2 b5 h3 b7 h2 d6 h4 d7 c3 d5 h3 d6 c2 b6 Ne7 Nd2 Nec6 Ra5 Rh5 Ngf3 Na6 b8R Rb5 b7 Nc7 Bd3 f1N Nc4 Nd2+ Kf4 Ke6 e4 f5 e5 Kd5 e6 Nb1 Ng5 Kd4 e7 Kc3 e8Q Kb3 Rf1 h1R Nf7 h2 Qee2 Rg1 Rf2 h1Q Nh8 Re1 Qg4 Ree5 Qg1 Re7 Kg5 f4+ Kf6 f3 Bf4 c1N Bf5 Qh7 Bh2 Nd3 Be6 Kc3 Qf5 Ne1 Rd2 f2 Rd4 f1B Rg4 Qe8 d8Q Bd3 Rg5 Bd7 Qc8 Nd8 Rg4 Rb2 Rg5 Nb5 Qc6 Bc2 Qa6 N5a3 Rc8 Rb3 b8Q Rb5 Rc6 Bc8 d7 Kb3 Rg4 Ka2 Qd6 Ka1 Rc5 Be4 Qh5 Bg6 Rcg5 Bh6 Qh3 Qeg8 Qhd3 Bf8 Qf5 Nc6 d8R Rab8 Rd7 Nd8 Rc7 Bd7 Rc5 Rc8 Rd5 Bc6 Rdd4 Bf3 Rh4 Bg4 Bd7 Bh3 Rhg4
1b2B1nN/p1rB1Q1k/N1n1nQq1/rPR2b2/5bR1/r1B1r3/N1B5/qN5K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 d4 Kf7 g4 Kg7 Kg2 c5 e4 h5 b4 c4 g5 c3 b6 c2 b7 Be6 e5 Qe8 b5 Rh7 d6 Nc6 b8N Qg6 d7 Bd6 Bd2 c1B Na6 Re8 d8N Bb8 d5 h3+ Kh2 f3 d6 f2 d7 h4 Ra4 f4 Qf3 Bf5 e6 Kh8 Bd3 f1R e7 Rg7 Rd4 Kh7 Bc3 Re1 Nf7 Re3 Qf1 f3+ Rf4 f2 d8Q Rg3 Rg4 Bcf4 Nh8 Rf7 Bc2 Rg7 Qg2 f1R Ne2 Rd1 Qe4 Rd4 Qb6 Ra4 Rc1 Ra5 Kh1 h2 Qb4 Re3 Q4c5 Rd8 e8B Rc7 Qf8 Rdd3 Be5 Rda3 Nec3 Bd7 Na2 Bf5 Kg2 h1N Bc3 h3+ Kg1 Ne5 Qbf6 Nf2 Bd7 Nfd3 Kh1 h2 Be8 Nc6 Bd7 Qg7 g6+ Kh6 Be8 Nc5 Bd7 Ne6 Be8 Kh5 Bd7 Qh6 g7 Qg6 Be8 Kh6 Bd7 Nge7 g8B+ Ng7 Bge6 Kh7 Bf7 Ng8 Bfe8 Ne6 Rd1 Re5 Rd5 Re4 Kg2 Re3 Rc5 h1Q+ Kf2 Qd5 Kg1 Qd4 Kh1 Qe5 Bd2 Qb2 Bc3 Qa1 Q8f7+
n2B2QR/p2Nbn1b/1PKN1qQQ/2nrQ3/4q3/rR1rN1Nq/1k6/1B5q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 g4 c5 d4 h5 g5 f3 d6 f2 d5 h3 g6 h2 d7 f6 d6 h4 g7 h3 b6 Qc7 d8N Qf7 b7 Nd7 b8N Nb6 d7 Be7 b5 Rh5 Na3+ Kc3 Bg5 c4 Qd6 Nh6 g8Q Kb2 Rc1 c3 Nb7 c2 d8Q f5+ Ke5 f4 e4 f3 Qdf8 Qg6 Bd3 f1R Ne2 f2 Ng3 Bf5 Nd7 Rd8 Qc6 Rd1 Nd6 Na8 Kd5 f1Q b6 Qf6 e5 Nf7 e6 Bh7 Qh6 Q1f3+ Kc5 Qe4 Qd5 Re1 Kc6 Re3 Bh4 Qc4+ Qc5 Rd5 Bg5 Qe4 Nac4+ Ka2 Qgg6 Rf3 Ne3 Kb2 Rcg1 c1N Bb1 Nb3 Rc1 Rd3+ Qd5 Nc5 Rc3 Qc4 Qde4 Rd5 Qe5 Qe4 Rd1 h1Q Rd4 Qef5 Rh4 h2 Rh5 Qe4 Qg8 Bf8 e7 Qg2 e8Q h1Q Qgg6 Be7 Qeg8 Qgh3 Nd1+ Ka1 Qhf8 Qg7 Ndf5 Bd6 Nf6 Rd7 Rd3+ Rd4+ Nd5 Re3 Bd8 Be7 Rb3 Rc3 Nde3 Ra4 Ra3+ Kb2 Rh4 Qd4 Rh6 Rd3 Rc3 Ra3 Rh5 Q1h2 Nf6 Rd5 Nd7 Qh1 Nd6 Qf6 Qg8g7 Bg8 Rh8 Qc4 Q7h6 Bh7 Qfg8 Qce4 Rb3+
2Br2r1/NnN4Q/3R4/1R2kb1n/3brp2/Q3q1R1/B1r1rP1N/bKN2r1R b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Be3 Ba6 cxd5 Qd7 d6 Bc8 d5 Qd8 Bd4 exd4 Kd2 Kd7 Kc2 h5 b4 a5 e4 f5 g4 c5 g5 h3 b6 h4 b5 f4 b7 h2 e5 a4 b6 a3 g6 a2 g7 h3 Qd3 c4 Qa3 c3 Ba6 Qe7 Nd2 Nf6 g8B Nh5 Ndf3 Bg7 Ne2 Nc6 b8Q Na5 Rag1 a1B b7 d3+ Kb1 d2 Nc1 d1R Qa7 Rd4 b8R+ Nb7 Rg3 Re4 Bf7 Rg8 e6+ Kd8 d7 Kc7 d8N Bd4 Nc6 c2+ Ka2 Qc5 e7 Bf5 e8N+ Kd7 Nc7 Kd6 Be6 Rd8 Bc8 Rg8 Bc4 Re2 Rd1 h1R Nh2 Rhe1 Bb3 Re4 Bc4 R1e2 Rh1 Nd8 Rb5 Nb7 Q7a4 Rd8 Na7 Ke5 d6 Rg8 d7 Rd8 Nf1 h2 Bf7 Rg8 d8R Rb8 Bd5 Qc3 Q4b4 Qe3 Qb1 Ra8 Rd6 Rd8 Rhg1 h1R Nh2 Rb8 R1g2 Rd1 Rg1 Rf1 Rh1 Rg8 Nb3 c1R+ Qc2 Rcd1 Nc1 Rdd2 Kb1 Ra8 Bd7 Rae8 Bc8 Rd8 Ba2+ Bc5 Nd5 Bcd4 Qc7 Rc2 Qh7 Rc4 Nc7+ Rc5 Rb4 Rcc2 Rb5+
2n1K3/Q3NR1k/2R2r2/1Q2B1bn/n2Nn2n/bqB3b1/bp1P1BB1/Nr4N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 Kg7 Kd4 e5+ Ke4 h5 f4 c5 a4 b5 g4 b3 g5 b4 f6+ Kh7 f7 h3 d6 h2 Kd5 c4 a5 c3 f5 c2 a6 b2 a7 b3 f6 e4 d7 h4 Ke6 h3 Nc3 b1N Na4 e3 Qg4 e2 Qh5+ Bh6 f8B e1B Kf7 Na6 Bg2 Rb8 a8Q Nc3 Bg7 Ne7 Bb2 c1B Nc5 Na4 Be5 Qb6 d8N Ba3 Nc6 Bg3 Rc1 b2 Qa7 Qb3+ Rc4 Rb6 Nd4 Bf5 Qe2 Bb1 Qf1 Rg8 Bh8 Rg7+ Ke8 Nc8 f7 Ba2 f8B Rf6 Rc1 Rgf7 Qb5 Rf1 Rc2 Rb1 Be7 Rf6 g6+ Kg8 g7 Kh7 g8N Bg5 Nd3 N6c5 Nb4 Ne4 Rc6 Re1 Nbc2 Rc1 Ngf3 Rb1 Rf1 h1N Ng1 h2 Na1 Be1 Qd7 Nhg3 Qa7 h1N Rf3 Nh5 Bc5+ Rf7 Ne7 N1g3 Rf1 Nf5 Bhf6 Nh4 Bh8 Rg7 Rf8 Bg3 Ne6 Nf3 Bc3 Rg8 Bf2 Nh4 Bhe5 Rg6 Nd4 Rf6 Rf7+
3N3N/1nnQ3K/1bR4b/1R3r2/b5BN/1q1pQB2/n2PN1R1/nkr2bbR b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 Ke2 Kf7 Ke3 Kf6 Ke4 d5+ Kf4 a5 c4 e5+ Kg4 h5+ Kh3 a4 f4 e4 g4 b3 c5 d4 c6 a3 c7 b2 b7 a2 b6 e3 Qc2 e2 Nf3 e1B Ne5 Bf2 Bc4 Nc6 b8Q Nge7 b7 Ra5 Bb3 Bd7 c8N Bh6 Qd3 Qb6 Bd5 Qb3 Nf3 Nd8 Qa7 Ba4 b8R Nb7 Nc3 b1N Ne2 Na3 Rag1 a1B Nd6 Rc8 Qe3 Nc2 Rg2 Bg1 Nf7 d3 Nh8 Bd4 Be6 Nd5 g5+ Ke7 f6+ Kd6 f5 Na1 g6 Bb6 f7 Rc1 f8R Nc7 f6 Rf5 Bd7 Kd5 f7 Kc4 g7 Kb4 g8B Ka3 Rfe8 Kb2 f8N Kb1 Re6 Bf2 Kh2 h3 Rc6 Bg1+ Kg3 h2 Bd5 h4+ Kg4 h3 Ne6 Bf2 Rhg1 h1N Nd8 h2 Nh4 Ng3 Bf3 Ne4 Rh1 Nc3 Be6 Na2 Bc8 Rf8 Kh5 Bg1 Bcg4 Rf5+ Kg6 Bf2 Rf1 h1B Kh7 Bg1 Rd1 Ba5 Qad4 Bb6 Qd6 Ba5 Qd7 Bb6 Rh2 Bg2 Rh1 Bh2 Rdg1 Bf1 Rg2 Bg1 Ra8 Ne6 Ra5 Nc7 Rb5
rq1bn1K1/1k1nb1Q1/rr2N3/1Q3p2/N5bR/B2P2R1/BRB4R/1bb1Br2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 f5 b4 a5 e4 h5 g4 h3 d6+ Kb7 g5 a4 g6 a3 d7 c4 Ke6 c3 Kf7 h4 b6 f3 b5 f2 g7 h2 e5 a2 e6 h3 e7 c2 e8Q Qc7 Nc3 Nf6 g8B Nd5 Qg4 Bh6 Qg7 Rh7 Bd3 f1B Na4 Be2 Ba3 c1B Nf3 Nf6 Nd4 Bg5 Ne6 Bg4 Bc2 Rh6 d3 Ra6 Rg1 h1R Rg3 h2 Kf8 Re1 d8R h1R Rd4 Ref1 Rb1 a1B Rb2 Nbd7+ Kf7 Be2 Rh4 Bg4 Rh2 Qb8 Rb4 Ka8 b7+ Ka7 Re4 Be5 Rb4 Bc7 Rb2 Bd8 Rh4 Qa8 b8B+ Kb7 b6 Rg6 Be5 Qb8 Bc3 Rh2 Be1 Rhf2 Qe7 Ne8 Qb4 Bge7 Qb5 Rf4 Bh7 Rf6+ Kg8 Rb4 Bg6 Ra8 Bf7 Rh6 Nc7 Rg6 Ba2 Rh6 Ne6 Rg6 Nc3 Rba4 Rh2 R4a6 Na4 Bh3 Qc5 Qf4 Bab3 Ne5 Nd4 Kb8 b7 Be6+ Kh8 Nd7 Qc6 Ka7 b8R Qc7 Rb5 Qb8 Rb4 Bg8 Qd5 Rgb6 Qb5 Kb7 Rc4 Bd5 Rb4 Bc4 Ne6 Bd5 Rh4 Bg4 Kg8 Bc4 Ba2 Bb3 Bd1 Bc2 Kf7 Bb1 Kg8 Ka7 Bdb3 Kb7 Bc2
1Q2N3/1B1bq3/q4qkb/n1RBP1rq/2p3QN/2q4r/K2N2R1/N2qBn1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 h5 d4 a5 Kd2 c5 Kc3 f5 e4 Kf7 b4 h4 Kb2 f3 e5 f2 d5 c3+ Ka2 f4 b6 a4 b5 f3 g6+ Kg7 g5 a3 d6 h3 d7 h2 b7 c4 b6 c2 Bg2 f1Q Bd2 c1Q Be1 f2 Nd2 Qc7 d8N Nd7 b8Q Bb4 b7 Qc3 Nc6 Nh6 Nd4 Nc5 N4b3 Bd7 Qg4 Nf5 Ngf3 Ng3 Rg1 Rh3 Nh4 h1Q Bc6 Qd8 Rg2 Qe7 Rd1 Qh2 Na1 Nb3 Bf3 Bc5 Rb1 Na5 Rb5 Be3 Rc5 Qe2 Bd5 f1Q Bc6 Qff8 Be4 Kg8 g7 Kf7 g8B+ Kg7 g6 Nf1 Bf7 Qd1 Bfd5 Qff6 Bf3 Kh6 g7 Ra6 g8B Bg5 Nf5+ Kg6 Bfe4 Rd6 Bc6 Rdd3 Bgd5 Rdg3 Bf3 Kh7 Nh4 Bh6 Qd6 Qh1 b8N Qh2 Bb7 Qh1 Qh5 Rg5 Na6 Kg7 Qg4 Kh7 Nf5 Kg6 Nc7 Qh2 Ne8 Qh1 Rg1 Qh2 Bh1 Qhe2 Qf4 Qh5 Qb8 Qb4 Qg4 Qb5 Nab3 Qba6 Rg2 Qf3 Ka1 a2 Kb2 Qd1 Nh4+ Kh7 Ka3 a1Q+ Kb4 Qc3+ Ka3 Rf5 Ka2 Rg5 Nf5 Kg6 Na1 Qdf3 Bbc6 Qe2 Bb7 Qd1 Nh4+
B1RR1rbn/1n5n/r4RRk/1Pb5/BrB1rn2/4q1Q1/QBK3p1/Nn2N3 b - - 0 1 illegal: No possible last move, all moves rejected
5nq1/3Bbbk1/1NR4n/P2Q3b/pNR5/B2Qrr1r/1RQK1b2/1Qr1R2r b - - 0 1 illegal: No proof kernel
Q2RB1b1/N1b2b1Q/Q2b1p2/8/bN1Q1Pbr/KnBR2n1/R2R1kq1/4r1q1 b - - 0 1 illegal: No possible last move
K4QbB/1N2P3/3pQRnb/b1rq1Q2/1bn1b3/r1R5/2BQq1k1/NR2Rb2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 Kg4 c4 g5 b4 f5 h4 Kg3 e4 a5 h6 d6 h5 d3 b6 a4 e5 a3 b7 g4 h7 f3 e6 f4 h6 f2 b5 f3 e7 d2 c5 a2 b6 Nc6 b8R Bf5 b7 Ra4 Nc3 Nd4 c6 Qd7 c7 Nb3 c8R Na5 Bd3 f1B Bb2 f2 Bc2 Ra3 Rb1 a1B Ne4+ Kg2 Nf3 g3 Nc5 Nc4 Nd4 Qe6+ Kc6 Qe2 Ndb3 Nf6 Ra8 Bd3 b8Q Nd7 Qb5 Nde5+ Kb7 Ng6 Rc7 Bg7 Rf8 Be4+ Rc6 Bc3 Rf6 Rc8 h8Q Bb4 h7 Ba5 Be5 B1c3 Qf8 Bcb4 h8Q Rc7+ Ka8 Rc8+ Qb8 Rc7 Qc1 d1Q Qh5 Qd5 Nb7 Rc8 Na1 Rc7 Ra6 Rc5 Rc6 Qe6 Qfc8 Ne3 Rf5 Qg4 Ba4 Bc4 Rf3 Rb5 Rd1 f1B Bc2 Kg1 Bh8 g2 Rf2 Qe2 Rf3 Ba2 Rc4 Rc5 Rf2 Qe5 Rc3 Bg8 Rf7 Nc4 Qhf5 Qd5 Re1 Kh1 Qe3 g1B Qd2 Be3 Rf6 Bh6 Qce6 Kg2 Qf8
3bk3/3b1nq1/3Nb1N1/rbQN4/1B1Qr1B1/Q1Q5/N1K2nPp/Rn1nr1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 c5 Kd2 a5 e4 h5 b4 f5 b6 a4 b7 h3 b5 c4 d6 a3 d5 a2 b6 f3 e5 h4 e6 f4 e7 c3+ Kc2 h2 Ne2 h3 Bd2 f2 Nc1 f3 Be3 Bd7 Nd2 Ra5 Bc4 f1B Ne4 f2 Bc5 Nc6 b8N Ne5 b7 Nf3 Qe1 Qc7 Rg1 h1N Nc6 h2 Ne5 Nh6 Be2 Nd2 Ng6 Nf7 Bb4 Rh4 Bg4 Nb1 b8N Bc4 Na6 f1B Qe3 Nh8 Qb6 Qb7 Qc5 Nf2 Nc7+ Kf7 Qc6 Nd1 Qb5 Bh6 Qc5 Bg5 e8Q+ Kg7 Bf5 Nf7 Qc8 Bd8 Bg4 Bcb5 Qa8 Be6 Qa6 Bbd7 Qac6 Be2 Qa4 Beb5 Qa3 Bc8 d7 Kg8 Ne7+ Kf8 d6 Qa7 Ncd5 Qc7 Kb3 c2 Ng6+ Kg7 Ne2 c1N+ Kc2 Nd3 Nc1 N3f2 Qac3+ Bf6 d8Q Bcd7 Qa3 Bg5 Qa8 Bd8 Qc8 Qb7 Qcc3+ Kg8 Q8c5 Qc7 Nh8 Kf8 Ng6+ Ke8 Kb3 Be7 Be2 Bc8 d7+ Kd8 Bh5 Qe5 Be2 Rf4 Bg4 Ne3 Kb2 Qg7 Ndf6 Nd2 Rb1 a1R Ne8 Bg5 N4f6 Re4 Na2 Bh4 Rbe1 Rd1 Re2 Rf1 Re1 Bg5 Rd1 Re1 Ra1 Ned1+ Kc1 Nb1+ Kc2 Nd6 Nh8 Ke7 d8Q+ Kf8 Ng6+ Kf7 Nd5 Bf6 Qdb6 Bcd7 Q5d4 Bd8 Nge7 Kf8 Qbc5 Nf7 Nd6 Nh6 Nc4 Nf7 Ng6+ Ke8 Nd6+
BQn3n1/1nBrb2q/3Q4/2N1r1k1/2B4p/1R1r3b/1PbRNR2/K1bn2BR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 d4 Kf6 Kd2 c5 Kc2 h5 e4 a5 e5+ Kg5 b6 f5 b7 a4 d6 h3 e6 c4 e7 a3 e8B h4 d5 h2 d7 a2 d6 c3 Qf3 Rh7 Qe4 Qe7 d8R Nc6 b8Q Na7 Kb3 c2 Be3 c1B Bf2 f3 d7 f4 Be3 f2 Bc4 f1B Qc6 Bd3 Qcd6 Bc2+ Ka3 Qg7 Ne2 Be7 Bg1 f3 Nd2 f2 Nb3 f1N Nc5 Ne3 Rb1 a1N Ka2 Nb3 Bh5 Nd2 Ka1 Ne4 Bhf7 Rh5 Bfd5 Qh7 Rf8 Nd1 d8B Bd7 Rf2 Nc8+ Ba5 Ra7 Ba8 Rb7 Bc7 Be6 Ba5 Rd7 Bc7 Kh6 g5+ Kg6 Qf4 Ned6 Qe5 Nb7 Qd6 Kg7 g6 Kh6 g7 Re5 Qd3 Bh3 Qd6+ Nf6 g8R Kh5 Rd8 Kg5 Rf3 Ng8 Rb3 Na5 Bd4 Nb7 Rf1 h1R Bg1 Rh2 Rf2 Rg2 Rdf8 Rg3 Rh2 Bd2 Rff2 Rd3 Rh1 Ne3 Rd1 Bc1 Rd2 Nd1 Rb5 Qe4 Rb4 Qh7 Rb3
1N2kb2/2Q1R1r1/nB1Bb3/Kn4pn/B1r3rq/n2B3N/Nb1R1Q1P/1r1N4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 a5 d4 c5 Kd2 f5 Kc3 f3 b4 c4 d6 f2 d7+ Ke7 e5 a4 e6 a3 d5 f4 b6 a2 b5 g3 Kb4 f3 b7 g2 b6 c3 Qe2 c2 Be3 c1R Nh3 g1N Nc3 Na6+ Ka5 Nf6 b8B Rg8 Bg3 Rc2 Rd1 a1B Rd2 Ra7 Bb8 Rc7 b7 Nh5 Bb6 Bb2 Qe1 g6 Bd3 f1R Qg3 Rb1 Nd1 Ne2 Re1 f2 d6+ Kf6 e7 Kf7 Qg2 f1N Qg3 Nc3 Qf2+ Nf6 Re4 Ne3 Re5 Rcc1 Re4 Nc2 e8B+ Kg7 Re3 Nh5 Re4 Qf6 d8Q Qh4 Ba4 Na3 d7 Ncb5 Re3 R1c4 Qe7+ Kh8 d8N Rg4 Re6 g5 Nc6 Rg7 Nb4 Kg8 Na2 Rcc4 Bd6 Bd7 b8N Bc8 Qd8 Bd7 Bf4 Kf7 Re4 Bf5 Qc7+ Bd7 Be5+ Ke8 Bd6+ Be6 Rf4 Bd7 Rf7 Be6 Re7+
1Bn1R1N1/2NrN3/1N1Pb3/K3Q2n/n1R4q/r2kbBrQ/1pr5/bQ1bQ3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 Kd6 d4 h5 Kd2 e5 g4 b5 a5 c5 f6 c4 f7 b3 Kc3 h3 Kb4 h2 g5 e4 g6 e3 a6 b2 g7 h4 a7 c3 f5 h3 f6 e2 Qd2 e1B Ra4 c2 Be2 Rh7 Nc3 b1B Bf3 Be6 Nge2 Nd7 Nf4 Ne7 g8N Nc5 Ng6 Bh6 f8Q Be3 Qg7 Nc8 f7 Qh4 Ka5 b4 N6e7 b3 Rc4 Na4 f8Q Bg3 Rg1 h1R Re1 h2 Qf5 Be5 Qh3 Rg1 Qf6 h1N Nb5+ Kd7 d6 Rg3 d5 Ba1 Qb4 b2 Qe5 Rf7 Bd2 c1R Nc7 Bc2 Qbc3 Rh7 Qd3 Bb3 Qb1 Bd1 Bb4 Rc2 Ba3 Rb8 a8N Rb3 Bc5 Ra3 Ba7 Rgg7 Bb8 Ng3 Re2 Nh5 Re1 Rg3 Nb6+ Kd8 Na6 Ke8 d7+ Kf7 d8Q Rhg7 d6 Rh7 Ned5 Kg6 Nac7 Rd7 Qe7 Qg4 Qd4 Kf5 Qd2 Ke5 Re2 Qe4 Qe1 Qh4 Qe8 Ra2 Nde7 Ra3 Rc6 Kd4 Rc3 Rd8 Rc4+ Kd3 Qb5 Rd7 Qe5 Bc5 Ree4 Bd4 Rf4 Bc5 Rf8 Be3 Re8
2b2k2/2rqb2q/1n1rQ2b/1RR1r3/r2P1N2/R1N1b2n/BK2R1p1/BQ1N2N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Nh3 f5 e4 a5 d4 g5 Kd2 c5 Kc3 g3 b4 c4 e5 a4 d6 g4 d7+ Ke7 b6 f3 b7 a3 e6 f4 b5 f2 b6 a2 Qb3 f3 Bb2 Ra7 Bg2 f1Q Nf2 Rh6 h4 Ra5 h5 Nf6 Kc2 Rh7 h6 c3 Rh5 Qh1 Nd1 f2 Bd5 f1R Bc4 Rf7 h7 Nd5 h8N g2 Re5 g1B Ng6+ Kf6 e7 Kg7 e8R g3 R8e6 g2 Nh4 Nf4 Nf3 Qh7+ Rf5 Kg8 Re2 Nh3 Kc1 c2 Nc3 Qe7 d8N Nd7 b8Q Rc5 b7 Be3+ Rd2 Bfh6 Ng1 Kf8 Rg5 R1f6 Ne6+ Ke8 Nf4 Kf8 Qe5 Rd6 b8R Rcd5 Rb4 Nb6 Qe6 Qd8 Re5 Rc7 Rb5 Qdd7 Qb4 Bg5 Bb3 Be7 Rg5 Rf5 Bc4 Rf7 Rgc5 Rf5 Bd5 Bf2 Re2 Re5 Rb1 a1R Bc4 Ra5 Ba1 Ra2 Rb3 Ra4 Ra3 Be3+ Kb2 Bd8 Ka2 Bf6 Qb1 Be7 Nd3 Bh6 Nf4 c1B Kb3 Bd2 Kb2 Be3 Ba2
2n5/2RBqb2/bqQ1r3/QBq5/p4r2/kRnQ1Q2/2KPbbNB/2B1Nq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kd6 g4 a5 b6 f5 b5 Kc5 d6 Kb4 g5 h5 d7 c5 e5 h3 b7 a4 b6 c4 e6 c3 g6 h4 e7 f3 e8B c2 g7 f2+ Ke2 h2 Kd3 f4 Bg6 h3 Be2 f1B Nf3 Nc6 Ra2 Ra6 b8B Nd4 b7 Ne7 g8Q Rh4 Qd5 Nb5 Bb2 c1Q Na3 Rd6 Rg1 h1Q Nc4 h2 Ne3 Qa5 Qc2 Qb6 d8Q Bg7 Qd7 Bd4 Qg5 Qg2 Bf5 h1B Qd8 Qe1 Bc1 Qgf2 Rb2+ Ka3 Qcc7 Rf6 Kc2 Nc3 Ba6 Qee2 Ne1 f3 Bg4 Be6 Qa5 Nc8 Qcd7 Rhh6 Bh2 Rf4 Bf5 Ba2 Rg7 Qg1 Qdd5 f2 Rc7 Bf3 N3g2 Qe7 Q8d6+ Bc5 Bd7 Bb5 Qg6 f1Q Qdd3 Bf7 Qge4 Be2 Qef3 Re6 b8Q Qa7 Qbb7 Qb6 Qbd5 Qd4 Q5e4 Qb4 Qec4 Bf2 Qcc6 Q4c5 Qcd6 Bc6 Bb5 Bb7 Qdc6 Ba6 Rb3+
1nn2bq1/Q5q1/Q5kb/1Q4rp/q1NRB1Pb/1NQ4b/q4R1K/BB1r2B1 b - - 0 1 illegal: No possible last move, all moves rejected
2k1Nb2/rQ5B/b2r2B1/1B1n1qrp/1bK1P1r1/QnQ2R2/bB6/1N1Qq1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 Kd3 Kd7 b4 a5 c4 f5 g4 h5 e4 a4 g6 a3 c5 a2 g7 f3 b6 f4 b7 f2 g5 f3 b5 Qa5 b6 Nc6 b8Q Nge7 g8Q Qe1 g6 Ra7 b7 Na5 g7 Nb3 Be2 f1R Qg3 f2 Nf3 Rg1 b8Q f1Q Ng5 Qf5 Nh7 Ba6+ Qb5+ Kc8 c6 Rg2 c7 Rg1 Qf7 Rg8 Qc4 Rg2 Qf3 Rg4 Rf1 Rg5 Nf6 Rg4 Kc2 d3+ Kb2 d2 Kc3 Rg5 Bb2 d4+ Kb4 d3 Ne8 Rg4 Qc3 Rg5 Qd5 Rg4 Qb5 Nd5+ Kc4 Bb4 Qh3 Rg5 Rf3 Bf8 Qdc1 d1B Qg3 Bc2 Qd1 d2 Qd6 Rg4 Qa3 Bb4 Qc1 d1R Q1d2 Rf8 g8B Rf7 Bh7 Rfg7 Qc1 Rd3 Qd1 R7g5 Nd2 Bf8 Rc1 a1B Nb1 Qh4 Qdd2 Qf2 Rg1 Qe1 Qd1 Bb4 Nd2 Bb1 Bf1 Ba2 Nb1 Nf4 Be2 Rd6 Bf1 Rb6 Bg6 Nd5 Be2 Kb7 c8B+ Kb8 Be6 Bf8 Bg8 Kc8 Bf1 Rd6 B8h7 Qe6 Qf6 Bh6 Bc1 Rg7 Kd3 Bc3 Bb2 Bb4 Qc3+ Rc7 Be2 Bf8 Bf1 Qf5 Be2 Nc5+ Kd4 Ra7 Qb7+ Kd8 Bb5 Nb3+ Kc4 Qf2 Qf7 Kc8 Qe7 Qe1 Qb7+
R1Qr1r1b/q7/2Q1n3/N1RBB1p1/R2rRb1P/2Nbq3/Kbr2B2/5kBn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 a5 h4 f5 e4 g5 b6 f3 b7 c4+ Ka3 f2 b4 c3 b5 f4 b6 a4 Bd2 f3 Be1 g3 Bb5 f1R Qc1 c2 Bc4 g2 Nh3 g1Q Bf2 Nf6 Nd2 Bf5 Nb3 Nc6 b8Q+ Qc7 b7 Ng4 Rh2 Nd8 Na5 Bg7 Ka2 a3 Nf4 Ne6 Ne2 Rc8 Nc3 Bh8 Rh1 Rf8 Qc8 Rd1 b8B Qg3 Bg1 f2 Ba7 f1R e5+ Ke7 Bb3 Rf2 d6+ Kf7 d7 Kg6 d8B Kh5 d5 Bd3 d6 Qe3 Bb8 Qca7 d7 Re2 Bd6 Nf2 Bb6 Kg4 d8R Kg3 Bd5 Rb8 Rh2 Nh1 Rf2 Kh3 Rf5 Rg2 Bbc5 Rb4 Qc6 Rd4 Ra8 Rdd2 Rf4 Rge2 Re4 Kg2 Bf2 Rd1 Bb8 Kf1 Bb6 Nd8 e6 Rd2 e7 Ne6 e8R Re2 Kb3 a2 Rc8 Rd2 Be5 Re2 Rb1 a1B Ka2 Bb2 Ra1 Rd2 Qd6 Re2 Rc5 Rd2 Qc6 Re2 Qb1 c1B Qc2 Rdd2 Bg1 Ref2 Qc8 Rd8 Qa4 Rff8 Qac6 Rdf2 Kb3 Rg2 Ra4 Rc2 Ka2 Qe2 Bg3 Bf4 Bc7 Qd2 B3f2 Qe3 Be5
1b2nKRk/q5R1/6BP/Rp1rq2B/1n2bN2/1Q3brQ/5R2/rb2rNBB b - - 0 1 illegal: No possible last move, all moves rejected
1Q1n2Q1/rr2n2P/1b1Np3/B2kBq2/1nb3n1/BRR2N2/1Q2Q1K1/rr2qB2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kd7 Kf2 Kd6 d4 g5 b4 c5 h4 a5 f5 e6 h5 a4 h6 c4 b6 g3+ Kg2 e3 f6 e2 b5 e1Q f7 c3 h7 c2 b7 a3 b6 a2 Be2 g4 Rh3 Ra7 Nc3 Qg5 Bb2 c1N Bf1 Ne7 Qe2 Nd3 Nf3 Qf5 Rb1 a1R Rc1 Bh6 f8B Nc6 Rb1 Be3 b8Q+ Rc7 b7 Nd8 Ba3+ Nb4 Bg7 Rf8 Bf6 Rf7 Rb3 Bd7 Bh8 Bb5 Bf6 Bc4 Ne4+ Kd7 d6 Kc6 d7 Kd5 Be5 Bf2 Kh1 g2+ Kh2 g1N Kg2 g3 Nd6 Rc5 Rc3 Ra5 Rb3 Ra7 Rc3 Ndc6 d8B Rb1 Ba5 Nd8 Qc7 Rg7 b8Q Ra1 Qcb6 Rb7 Rh4 Nh3 Re4 Bg1 Ree3 Nf2 Red3 Ng4 Re3 Nd3 Qbb2 Nb4 Red3 Kc6 d5+ Kc5 Kh3 g2 Rb3 Bd4 Re3 g1R Rec3 Rh1+ Kg2 Ra7 Ne8 Bg1 d6 Kd5 d7 Bb6 Nd6 Nec6 Nd4 Nb7 d8Q Qc1 Qe7 Nbd8 Qf8 Rgb7 Nf3 Ne7 Qg8 Qd2 Qf2 Qe3 Be2 Rhb1 Bf1 Qe1 Qfe2
N1R1rN2/2r1R1rp/KNb4r/3R1QN1/2Q1R2P/2b1B2n/3qB1bb/k1n2q2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Ke2 Kd7 g4 Ke6 d4 Kd5 h4 Kc4 g5 e5 c3 a5 c6 f5 b6 a4 g6 a3 b7 e3 c7 f3+ Ke1+ e2 Kd2 f2 d5 f4 d6 e4 g7 a2 d7 e3+ Kc2 f3 Qe1 Ra6 Nh3 Bd6 Ng5 Nc6 b8N Nf6 g8Q+ Nd5 Qf8 Bh2 Qf5 Bb7 c8N Qa5 d8R Nf4 Nd7 Ne5 Nf8 Rh6 Rd5 Rg8 Bd2 Ned3 Qc1 e1Q Be2 f1B Rg1 Qf2 Rg4 Bg2 Qf1 Bc6 Qc1 Qc5 Qf1 Rg7 Nb6+ Kb5 Kb3 Nh3 Qc1 Qf1 Re4 f2 Na3+ Ka5 Rb1 a1B c4+ Bc3 Nb5 Qd4 c5 Rc7 Qc2 Nc1+ Ka3 Rg7 Nc7 Qd3 Nca8 Rc7 Bh5 e2 Be3 e1R Be2 Qd2 Rb3 Qg1 Rbb4 f1R Re7 Rf4 Qcd3 Qf1 Rbe4 Rg4 Qd4 Na2 Kb3 Nc1+ Kc4 Rg3 Nc8 Ka4 Ncb6+ Ka3 Qd3 Ba4 c6 Ka2 Kc5 Ka1 Qc4 Bb3 Kb5 Ba4+ Ka6 Rg4 Nge6 Rg7 Ng5 Rb7 c7 Bc6 c8R Rc7 Bd3 Qd1 R4e6 Rb7 Rec7 Be4 Bd4 Qd2 Ree8 Re3 Be2 Bg2 Rf7 Ree6 Be3 Rc7 Rfd7 Ref6 Re4 Re6 Rf7 Re8 Rfe7
R1R4B/3q1pnk/K1nb2rn/NrBq2P1/2NQ1B2/R1bQ3n/b1R1B1b1/8 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 c5 Kd2 a5 Kd3 h5 Kc4 h3 b4 h4 e4 a4 g4 h2 b6 f3 Kb5 h3 e5 f2 g5 a3 e6 a2 e7 c4 d6 c3 d5 c2 b7 Qc7 Ba3 c1N Be2 f1Q Qd4 Qd1 Nd2 Nd3 Nb3 Nh6 Nf3 Nf2 Na5 Nc6 b8R Ra6 Ra8 Rg8 Ne5 Qd7 Nec4 Rg6 Qd3 Qb3 Rhc1 h1B Rc2 h2 Bb2 Bf3 Bh8 h1N Qd4 Ra7 Kb6 Rb7+ Ka6 Nh3 b5 Be4 b6 Bg2 Qd3 Rb8+ b7 Ng3 Qd4 Nh5 Qd3 Qf5 Qd4 Be6 Qd3 Rc8 b8B Ng7 Ba7 Rb8 Bc5 Kd7 e8R Rb5 Rec8 Be7 Rf1 a1B Rf3 Bc3 Rg3 Bd8 Re3 Ke8 Qd4 Kf8 d7+ Kg8 d6 Kh7 Rf3 Bf6 d8Q Qa2 d7 Be7 Qd3 Qd5 Qb6 Qb2 d8B Bd6 Bc7 Qb1 Re3 Qf1 Rg3 Qf6 Bb8 Qe7 Qd8 Qd7 Qf6 Bf8 Bf4 Bd6 Qfd4 Qf3 Ne5 Ba2 Nec4 Qd5 Qd1 Bb2 Ra3 Bc3 Q1d3
b4N1b/Q2bPBr1/1QpB1n2/Q1rr3q/2BR1r2/K1N2knQ/R2B3b/3q4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 a5 Kb3 f5 g4 h5 e4 f3 g5 a4+ Ka2 f4 b4 h3 g6 h2 g7 f2 b6 f3 b5 h4 b7 a3 b6 h3 Ne2 Ra5 Qb3 Ne7 g8B Nf5 Bf7 Ng3 Bd2 Bd7 Nbc3 Rh5 Nf4 Rc5 Bc4 f1R Ne6 f2 Rg1 Be7 Nf8 h1B Rg2 Bh4 Rd1 Rg1 Rh2 f1R e5+ Ke7 e6 Kf6 e7 Kf5 d6 Kg4 d5 Rf4 Re2 h2 Rg2 Kf3 Re2 Nc6 b8Q Ne5 b7 Ng4 Qa7 Nf6 b8B Bg2 Qbb6 h1Q Kb3 a2 Ka3 a1B Qba5 Bc6 d7 Rg5 d6 Rgd5 Q5b6 Qe8 d8Q Bd7 Qc8 Bg5 Be6 Qeh5 Bg8 Bh6 Bf7 Bg7 Qba5 Bh8 Q5b6 Bc6 Qh3 Bd7 Nb5 Be5 Nc3 Bg4 d7 Bd6 d8Q Bd7 Nb5 c6 Be3 Rff5 Ree1 Bf1 Qba5 Bf4 Bf2 Be3 Re2 Rf4 Qdb6 Bd4 Qh2 Nf5 Nc3 Rg7 Ba2 Ng3 Be1 Bg1 Qh3 Bh2 Bd6 Qg1 Rb2 Ba6 Rd4 Bb7 Bc4 Ba8 Bd2 Qd1 Ra2
1k1q2qB/2R3QR/Bb2QB2/p1nn4/2KQ2qN/P1b3rb/1B3n1N/b1Q4b b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 Ba6 fxg4 Bb5+ Qd7 Bf1 Qd8 h4 b5 Nc3 g5 Ba3 a5 Nb1 g3 Bb2 g4 Bc1 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Qd5 Rh3 Qd7 Rh1 Qd8 Ke2 Kd7 d4 Kc7 f4 h5 c4 e5 d5 h4 c6 e3 Kd3 h3 c5 h2 g6 b4 a3 e4+ Kc4 e2 f5 e1N g7 b3 f6 g2 f7 b2 Nf3 g1B Qd4 e3 Nh4 e2 Nd2 b1Q Ndf3 g3 Bb2 Qg6 Rc1 Nf6 g8Q g2 Qg7 Na6 d6+ Kb8 d7 Nd3 Rc2 Be7 f8B e1B Be2 Rg8 c7+ Ka7 c6+ Nac5 Rc1 Nf2 Bd3 Bd6 Be7 Nd5 Bf6 Qg4 Rc3 Qe7 d8B Be5 Rc2 Bd7 c8Q Bc3 c7 Qe8 Bde7 Qd8 Be2 Bf5 Qe6 Ka8 c8Q+ Ka7 Qcc6 Kb8 Bf1 Qe4 Qg4 Nd1 Bh8 Nd7 Kb3 Be1 Qf2 Bb4 Bd4 Rg5 Ng6 Qf4 Ba6 Qe4 Bdc5 Ba1 Bef6 Qf4 Qd2 Bf2 Bb6 g1Q Bbd4 Qgg3 Bb2 Bb6 Qcc3 Nf2 Qcd4 Qg1 Rc5 Bc3 Rc7 Nc5+ Kc4 Qg2 Qc1 Qfg3 Rg1 h1B Ngh4 Rg6 Qgg5 Bh3 Nh2 Q3f3 Qh6 Qh5 Qf8 Qh7 Qfh6 Qhg8 Qh7 Qf3 Rg5 Qe4 Rh5 Rg3 Qg7 Qg4 Rh7
bQ3B2/2bN2b1/1R1N1Q1p/Q1q1rN1b/R4N1Q/1Bb3KP/5n1r/r2bb1k1 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nc6 f5 Nb4 g5 Nd5 Ne2 Qc7 Ng1 Ndf6 gxf6 Qd8 Kf2 Kf7 b4 e5 c4 g5 c5 d5 b6 a5 b7 d3 b8Q d4 c6 d2 b5 d3 c7 e3+ Kf3 e2 b6 e1R b7 g4+ Kg2 a4 Kf2 g3+ Kg2 e4 Nh3 a3 Qe2 e3 Bb2 a2 Qd1 e2 Na3 Bg7 Qa7 Qf8 b8N Bb7+ Nc6 Nh6 c8Q Ng4 Qcb8 Qd6 Rb1 a1B Qda4 Qe7 Be5 Qc5 Rb6 Bc3 Q7a6 Ra7 Bd6 Ba8 Nb5 Re7 Qe4 Ra1 Ncd4 e1B Qa5 Ree8 Kf3 g2 Be2 g1B Bd1 Re6 Bb3 Be3 Rf1 Bf4 Be7 Bc7 Kg2 d1B Rf4 d2 Bd6 Nf2 Kg3 Be2 Qh1 d1B Re4 Bed2 Nf4 Nd3 Be7 Bh5 Bd6 h6 Be7 Re8 Nd6+ Kg8 f7+ Kh7 f8Q Be1+ Kh3 Rg6 f6 Rg2 f7 Rd2 N4f5 Rg2 Nd5 Kg6 Ra4 Rb2 Bh4 Re4 Be7 Rf2 Kg3 Re6 Nf6 Kg5 Qfd8 Ree2 f8N Re5 N8d7 Rc2+ Kh3 Rg2 Bf8 Rd2 Qe7 Rf2 Qe6 Rc2 Nd5 Rg2 Nb4 Kf4 Nd5+ Kf3 Qf6 Nf2+ Kh4 Ke2 h3 Rh2 Qe4+ Kf1 Kg3 Kg1 Qeh4 Bcd2 Nf4 Bb4 Qg4 Bbc3 Qgh4
QB2b2N/2N1QbnK/RR1q1p2/b3BP2/6B1/1Q5b/1b2nr1B/1k1bb1Qq b - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 b5 axb5 g5 Ke2 gxh4 Ke1 Ra6 Qd3 Rd6 Qd2 cxd4 Qd1 d3 Bf4 d4 Bc1 Rd5 exd5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kd7 c4 Kd6 f4 Kc5 g4 Kb4 g5 h5 b6 e5 c5 e4 g6 f6 g7 a4 c6 a3 b7 h3 d6 h2 c7 h4 d7 h3 Ne2 a2 Na3 Nh6 g8Q Nf5 Nb5 Nc6 Qg1 Ng7 b8B Rh4 Rb1 a1B b3 Rh5 Bb2 Rf5 Bg2 Qe7 d8Q Qd6 Bf3 Be6 c8Q Bf7 Bg4 e3+ Ke1 Be7 Nc7 d2+ Kf1 d3 Be5 Ka3 b4 Ka2 b5 Be8 b6 Nd4 b7 Bb2 Qdd7 Bd8 Qe7 Bf7 Qc2 d1B Ke1 Rh5 f5 d2+ Kf1 Rg5 Nf4 e2+ Kf2 e1B+ Ke3 Be8 Ng6 Ne2 Nh8 Rg6 Qc4+ Bb3 Kf3 d1B Qd3 Bbf7 Qde3 Ba3 Rb6 Bb2 Qa3+ Kb1 Qce6 Ba5 Qeb3 Be1 Qa8 Rg5 Bh5 Rg2 Bg4 Nd4+ Kf4 Rf2+ Kg3 Ne2+ Kh4 Bd2 Qgg3 Bb4 Re1 h1B Qg1 Bg2 Bh2 Nc3 Re6 Ne2 Be5 h2 Ra6 Qd7 Reb6 h1Q+ Bh2 Bg8 Nb5 Ba3 Rc6 Be6 Be5 Bb4 b8B Bda5 Nc7 B6f7 Rcb6 Be1 Ng6 Ne6 Kh5 Ng7+ Kh6 Qd6 Nh8 Bh3 Kh7
K1n1R1rn/2p5/R1QRNqrB/BBP1r1r1/3Nnk2/2r1bB1r/R7/5q1Q b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 h3 fxg4 Ra6 g3 Ra1 g2 Na3 g5 Nb1 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd4 Rh3 Qd7 Rh1 Qd8 Ke2 Kd7 Ke3 Ke6 f4 h5 b4 a5 c4 a4 d4 h4 d5+ Kf6 Kd4 e3 Kc5 e5+ d6 e2 b6 e1Q f5 h3 b5 a3 g5+ Kf7 f6 Ke6 f7 Kf5 b7 h2 b6 e4 g6 a2 g7 e3 Nf3 g1N Na3 g2 Nb5 e2 Bh6 Ra7 Ng5 Ra3 Ne6 Ne7 g8B Nf3 d7 Nbc6 b8R g1R b7 Rg6 Nbd4+ Ke5 Kb5 Rc3 Ka6 Na7 c5 Ke4 Bd2 Bh6 f8B Be3 Bh6 Nac8 Bh7 Qf8 d8R Ng5 Rd6 Rg8 Rg1 h1R Rg2 Rh3 Qc1 Nb6 Ka7 Nbc8+ Ka8 Qf6 Qd1 Qef2 Rh2 e1R Bb5 Re2 Qh1+ Ke5 Be1 Ne4 Bd2 Rg5 Bf5 Qf1 Bg4 Rg2 Bf3 Ng6 Be1 Nh8 Bd2 Na7 Re8 Nc8 b8Q R5g6 Qb6 R2g5 Nd8+ Kf4 Qc6 Rc4 Ba5 Rc3 Rc1 a1R Ra2 Ra3 Rc4 Re1 Ra4 Re2 Bb4 Rc3 Ra6 Rg2 Ba5 Rg4 Bg7 Re5 Bh6+ R4g5 N8e6+
1RRqqb1K/r3NR2/2R3QQ/1br2Q1Q/3n4/4kqpP/BB1pnn2/3b2N1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 c4 e5 f4 a5 b4 g3 c5 d6 b6 d3 h3 d2 b7 g2 c6 g4 b5 g3 b6 a4 c7 a3 Nc3 a2 Qh5 d1B Bb2 Ra7 Bc4 Bd7 c8R Nh6 Rc1 a1Q Ba2 Nc6 b8Q Ng4 b7 Nd4 Qa8 B7a4 b8R Bb5 Qc6 Nf2+ Kd5 e4 Qb6 Ke7 f6+ Kd7 f7 e3 f5 e2 f6 e1Q Rc6 Qee8 Qa6 Qb1 Rcc8 Qd3 Rc6 Bg7 f8Q Rh6 Qh8 Bf8 f7 Ke7 Qg8 Kf6 Rc2 Rg6 Qc8 Rg5+ Qf5+ Ke7 Qgg6 Qf1 Nf3 g1N Rh2 Nge2 Ng1 Nh1 Ke4 d5+ Ke5 Qf3 Rc1 Nf2 Rcc8 Ne6 Rg2 d4 Nd5+ Kd7 Ne7 d3 Kf6 Kd6 Rh2 d2 Rh1 Bh6 f8Q N6d4 Qh8 Bf8 Q8h6 Rg4 R1c7 Re4 Rcb7 Re5 Rb6+ Qec6 Kf7+ Kc5 Kg8 Rd5 Kh8 Re5 Bb1 Kc4 Rh2 Rc5 Ra6 Qce8 Rac6 Qe4 Ba2+ Kd3 Qhh7 Ke3 Qhg7 Nd3 Rf2 Qg4 Rf4 Qf3 Q7h6 Nf2 Qb1 Re5 Rf7+ Rg5 Qhg7 Rd5 Qbf5 Rc5 Q7h6+
2bn1Rq1/3R2r1/r2NbBq1/4R1RQ/1q4p1/bBQP1QK1/3nrp2/Nk1Q4 b - - 0 1 illegal: No possible last move, all moves rejected
2N1Q1BK/2kR4/2b2N1B/rR1P1p2/1qNn2bR/N4Qp1/3bR3/rn1rqq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 g5 e4 c5 h4 f5 b4 a5 e5 f3 Kg3 a4 h5 c4 b6 c3 d6 a3 e6+ Kc6 d7 c2 b7 a2 e7 f2 e8Q Bh6 b5+ Kd6 b6 Ne7 Bc4 f1B Na3 Bf8 h6 Ra7 h7 Ra6 Nf3 Nd5 Nd2 Bh3 Qf3 Qe7 d8R+ Bd7 Rh2 Qe4 Rb1 a1R Rb5 Nc3 Re2 Nb1 Bg8 Ra5 d5 Nc6 b8N Nd4 b7 Kc7 Nc6 Bh6 Ne7 Bc6 Nc8 Qe7 Ndc4 Qb4 Be3 c1Q b8N Qh1 Nd7 Qf1 Be6 Rg8 h8R Rg7 Bg8 Rg6 Bc1 Re6 Ra2 Re1 Nf6 Rd1 Re2 Qh1 Kf2 g3+ Ke3 g2 Bd2 g1Q+ Kd3 Bf8 Rh4 Qe1 Ke3 g4 Kf4 g3 Kg5 Qhg1 Kg6 Qgf1 Kh7 Bg4 Kh8 Bh6 Bc1 Bd2 Rd6 Bc3 Bh6 Bd2 Rd7+
3B1bQR/2B1kq2/2nR1N1p/qNnnp3/1rQ5/1bQBr2P/2r2B2/1qQ4K b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 fxg4 d4 e5 c4 a5 f4 g5 Kf2 g3+ Kg2 e3 c6 a4 d5 a3 b6 g4 f5 a2 b7 e2 c5 e1Q f6 Bd7 d6 Qe4+ Nf3 Qd3 c7 Qg6 c8Q Be7 c6 Ra3 c7 Ba4 Nd4 Bf8 Nd2 Ne7 Ne4 Qf7 Nb5 Bb3 Bd3 Nbc6 b8B Nd5 Be3 h6 h3 Ra4 Bf2 Rb4 Qc1 Rh7 Rb1 a1N Rd1 Rh8 Kg1 g2 Qa6 Rh7 c8Q Rg7 Kh2 g1R Bc7 Rg3 Kh1 Re3 Qa2 g3 Qe2 Qh5 d7+ Kf7 Qec2 Qf5 Qc3 g2+ Kh2 Ke6 f7 Ke7 Nf6 Rgg4 Rb2 Rgc4 Ra2 Qf3 Ra8 Rc5 Qd4 Rc2 Qc3 Ba2 Qa6 Nb3 Qa4 Nc5 Rb8 Rbb2 Qac4 Rb4 Ra8 Bb3 Kg1 Qc8 Kh2 Qa6 Rd2 Bg7 Rh8 Qa5 f8Q+ Ke6 Qc8 Ke7 Qg8 Bf8 Rd1 Qh5 Rd2 Qf7 Be4 Nf4 Rd6 Nd5 Bd3 Ree2 Kg3 g1Q+ Kf3 Qd1 Kg2 Re3 Kh2 Qe2 Kh1 Qd2 Qcg1 Qe1 Qf1 Qea1 Qc1 Qb1 d8B+
1N1b2kn/N2b1B1q/1rQ1rp2/Rn6/1Bq1B3/N3N1Pq/3p1BRQ/1Kn3r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 h5 b4 d5 c4 a5 Kc2 a4 e4 f6 c5 Kf7 c6 a3 c7 h4 b6 f3 g3 a2 e5 h3 b5 h2 b7 f2 b6 Ra6 Ba3 Qd7 Qd2 Nh6 e6+ Kg8 e7 Qh3 e8Q Nf7 g6 Nc6 b8N Bd7 c8N Na7 b7 Nb5 g7 Re6 Bd3 f1Q Be4 d3+ Kb2 d4 Ne2 Qf4 Rg1 h1Q Na7 Rh7 Qc2 d2 Nec3 d1R Rg2 d3 Nd5 Rg1 Ne3 Nh8 Bb4 d2 Na3 Rb6 Qh5 Be7 Qc6 Bd8 Qe2 Qf1 Qf2 Qc4 Qe2 Kf7 g8B+ Kg7 Bgd5 Rh5 Bf7 Re5 Qh5 Re7 Qe2 Qh7 Qh5 Re6 Qh2 Qh3 Rf1 a1N Rf5 Nb3 Ka2 N5d4 Ra5 Nc1+ Kb1 Qh7 Na6 Nb5 b8B Qh5 B8d6 Qh3 Bdc5 Qh7 Nb8 Qh3 Nd5 Qh7 Bf2 Qh3 Be8 Kg8 Ne3 Qh7 Qh6 Qh4 B8g6 Qg4 Qh2 Qgh3 Bf7+
RbBr2R1/R4n1P/k1NB4/n5rb/K5pb/1B4pB/3Q1rqR/1nq1Q1N1 b - - 0 1 illegal: No possible last move, all moves rejected
1k1nN1K1/2N3P1/1Bb2N2/1qnRn1qQ/3p4/QBQqQbp1/R4r2/2bN2r1 b - - 0 1 illegal: No proof kernel
qb4B1/6P1/2Rn2qr/Qp2B2b/BQN3n1/K1BpnN2/bQR1k1r1/1r5Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 c4 e5 Kc2 h5 Kb3 d5 f4 e4 g4 b6 a4 e3 a5 d3 g6+ Kf6 a6 d2 a7 h4 c5 h3 c6 d4 g7 e2 c7 e1R Ra6 h2 Bb5 d3 Nf3 Bd6 Na3 Ne7 g8B Nd7 Ba4 b5 Bb2+ Ne5 Bc3 Rh6 Rc6 Qe8 Nc4 Qg6 Ka2 Be6 c8Q b3+ Kb2 Rb8 a8Q Bf7 Qa5 Rb6 Qca8 Nc8 Qe2 Rb8 Rg1 h1Q Rg2 Rb7 Rh2 Rg1 Rf2 Re7 Rh2 Rg2 Qb7 Re6 Qf2 Bb8 Ka3 d1N Qb2 Nd6 g5+ Kg7 Qba8 Ne3 Qb7 Rf6 Qba8 N5g4 Qb7 Rg1 Rc2 Rb1 Qba8 Rh2 Qb7 Rg2 Qba8 Qgh5 g6 Kh6 g7 Qg6 Be5 Re6 f6 Kh5 f5 Be8 f7 Rf6 Qa1 b2 f8B Re6 f6 Bf7 Ng1 Kh4 Bc3 Kg3 Nf3 Be8 f7 Rf6 Nfd2 Kf2 Nf3+ Kf1 Be7 Re6 f8Q Qh8 Nfd2+ Ke2 Bef6 Qg5 Nb6 Nc8 Nd5 Bf4 Rd6 Rf2 Nb6 Bh5 Qh1 Rg2 Nbc4 Bh2 Bfd4 Rh6 Bd5 Qg6 Rc6 Bc7 Qfb4 Nd6 Be6 Qa8 Be5 Bb8 Bd5 Rc1 Be6 b1B Qab2 Ba2 Bg8 Rb1 Nf3+
8/1b3p2/1n1B1b1R/qQN1qnrP/1NQ1N2q/1b5k/Q1r4p/1KNRQr1B b - - 0 1 illegal: No proof kernel
1B1kq3/R2pQn1n/K2n4/N4NbN/P5pQ/3N1b1r/rQBq1q2/R2r1Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 Kd3 b5 c4 g5 h4 g4 f4 b3 h6 b4 c5 b2 Kc4 d3 Kb5 b3 h7 d2 f6 e4 h5 e3 h6 e2 c6 e1N f5 Qe7 c7 Ng2 Nf3 Qe1 f7+ Ke7 f6+ Ke6 Bd3 Qg1 Bc2 Be7 f8N+ Kd6 f7 Ra4 Ne1 Nf6 Na3 b1Q Ng6 b2 f8Q Bb7 c8N+ Kc7 Nc4 Nh4 N8d6 Nf5 Nf4 Bf3 Na5 Nc6 Ka6 Nd8 Nh5 Qf2 Nd3 Nf7 Qf1 d1Q Bf4 Qdd2 a3 Bd8 Qe7 Qbe1 Rg1 b1R Bh2 Rf8 h8Q Nh7 Qb2 Rh8 Rh1 Rd1 Be5 Ng3 Nf5+ Kc8 Rh3 Ne4 Bb8 Ned6 Rh2 Qfe3 Re2 Q3f2 Re4 Qee3 Rb4 Qe4 Rb7 Qee3 Ra7 Qee1 Qh4 Bg5 Qf6 Qe8 Qe7 Rb4 a4 Rb2 Qee2 Kd8 Qe3 Nf6 h7 Ra2 Qee2 Rg8 h8Q Nh7 Qhe5 Rh8 Qb2 Rf8 Nf6 Rh8 Qhh3 Nf8 Qe6 Rh4 Nh5 Nh7 Qg3 Rh1 Qh4 Rh3 Qe7+
k2Nr3/r1Pq4/p5Br/b2q1RB1/Bbnn1Q2/R2Kpq1b/R1R2Q2/B6N b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Ke2 d5 f4 Kd7 b4 Kc7 c4 Kb7 g4 e5 c5 h5 c6+ Kb6 g6 e3 g5 e4 f5 a6 f6 Ka7 g7 h4 g6 h3 f7 h2 Qc2 Bd7 Ra2 Qe7 Na3 Bh3 Nc4 Qd7 Nd6 Nh6 g8B Rh7 g7 Qe6 Nb7 Qg6 Nd8 Bc8 Nh3 Ng4 Nf2 Qf5 Qb2 Be7 f8R Ne5 Bf7 Qd7 g8R Nc4 Bg6 Rg7 Rg1 h1R Rg3 Rh6 Nh1 Bd6 Rf5 d3+ Ke1 e2 Bg5 d4 Qc2 Nb6 Kd2 Re7 Rgf8 Re8 Rc5 Bc7 Rff5 Qd5 Qb2 Be6 Rc2 e1B+ Kd1 d2 Ke2 Bd7 Rga3 e3 Kd3 Nc4 Be2 Bc8 Beh5 Ba5 Bd1 Nd7 b6+ Kb8 b7 Ra7 b5 Nf8 Rcc3 Ne6 Ba4 d1Q+ Qd2 Qh5 Qf2 Qhf3 Rcc2 Beb4 Nf7 Kc7 b8B+ Kb6 Bg3 Qd7 c7 Kb7 b6 Ka8 Nd8 Qfd5 Qf4 Qf3 Be1 Qfd5 Bc3 Qf3 Ba1 Qfd5 Ke2 d3+ Kd1 d2 Ke2 Nd4+ Kd3 d1Q+ Rd2 Qg4 Rdc2 Rb7 Qf2 Rb8 Qf4 Qgf3 b7+ Ka7 Rf6 Q7f5+ Qe4 Bc3 Re2 Ra8 Rf7 Qfe6 Qf4 Qed6 Rg2 Bh3 Rf5 Qd7 Rgd2 Kb6 Rg2 Ra7 b8Q+ Kc5 Qb3 Bcb4 Qb2 Kb6 Nf7 Kb7 Nd8+ Ka8 Qe2 Re4 Qe1 Re7 Rgc2 Re8 Qf2
5B2/1p2r1nR/6N1/qBQ1b3/1BK1RQNr/r1bB1bQ1/1p2P2q/1nk3nQ b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 g4 Kd7 d4 Kd6 Kd2 h5 Kd3 c5 a4 f5 g6 h4 g7 h3 a5 b3 g5 f3 a6 h2 g6 b2 a7 f2 Nh3 f4 Nc3 f3 Bd2 Nd7 Nf4 Rh4 Bg2 f1R Kc4 f2 Be4 Ne7 g8Q Nf5 g7 Qa5 Ng6 Rg1 Qa4 f1N Bd3 Rgg4 Be1 Re4 Nd1 Re7 Nf2 Ne5+ Kb3 Qc7 Ng4 Qa5 Bb4 Nf3 Kc4 Ng1 Qh8 Be6 g8B Ng7 Qb5 Bf5 Ra4 Be4 Be6 Bf3 Bd7 Rd8 a8Q Nd2+ Kc3 Nb1+ Kc4 Rc8 Qb8+ Rc7 Bc6 Re3 Be8 Be7 Qh6 Bf6 Qf4+ Be5 Bc6 Nh3 Qg3 Ng1 Qf8+ Re7 Qff4 Qa8 Qa5 Qd8 Bb5 Qa8 Bc2 Ra3 Bd3 Qd8 Qa8 Qa5 Qaf8 Kc7 d6+ Kb6 d5 Bc3 d7 Be5 d6 Bc3 Be4 Be5 Kd5 c4 Q8f5 c3 Kc4 c2 Bd3 c1B Qh5 Bd2 d8Q+ Ka7 d7 Bdc3 Qdh8 Kb6 Qhf5 Nh3 Rg1 h1Q Q5g5 Qh2 Rh1 Ng1 d8B+ Bc7 Be8 Ka6 Qc5 Bd6 Bc7 Bde5 Bd6 Qh3 Bf7 Rh5 Be8 Rf7 Bf8 Re7 Qh7 Qg2 Qhh6 Rh2 Qhh3 Qf2 Qhg2 Rh8 Rh4 Rh5 Qh1 Qh2 Bc6 Rg5 Rh7 Rh5 Qd5 Rh3 Bd6 Rh4 Rb4 Qd8 Kc5+ Ka5 Rd4 Qa8 Bcb5 Qd8 Bbc4 Ka4 Re4 Qa8 Qd4 Qa5+ Bb5+ Kb3 Kd5 Qc7 Bb4 Qa5 Bc4+ Kc2 Qc5 Nd2 Bd3+ Kc1 Qf6 Nb1 Kc4 Ne6 Qf5 Ng7 Qff4+
5K1b/N5N1/Q2R3R/1Q2b3/2Npn1R1/pP1q2Br/1rbn1RbN/1Brk3b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 d5 c4 e5 f4 a5 b3 h6 Kg6 h3 Kf7 h5 b6 h2 b7 a4 g5 h4 f6 d3 f5 d2 c5 Ke3 c6 e4 g6 h3 c7 Bd6 g7 Nd7 b8Q Nc5 Na3 Bb7 c8N Be5 Bd3 Kf2 Rb1 e3 Na7 e2 Nc4 e1B Nf3 Ne4 Ba3 Rh7 Bd6 a3 Qc1 d1B Qh6 Bc2 Rd1 B1c3 Bc7 Qd7+ Kf8 Nd2 f7 Nf6 g8R Nfe4 f6 Ba1 Qe8 Rd8 Rg4 Qf5 Qg6 Rd6 Qb5 Rc6 Rhg1 h1R Nh2 Rh4 R1g3 Rg1 Bb8 Rg2 Bc7 Rh6 Rh4 Rh5 Rgg4 Rh7 Rh6 Ba8 Nf1 h2 Bd6 h1B Nh2 Nb1 Rd2+ Ke1 Rf2 Nbd2 Bc7 Bd1 Bb1 Bc2 Bb8 Kd1 Bd6 Bec3 Bg3 Bb7 Qh5 Qf3 Qa6 Qd3 Qe5 Ba8 Qb8 Be5 Qbb5 Nf3 Ke8 Rc5 f8N Nfd2 f7 Rh8 Rd6 Rh3 Ne6 Bh8 f8R Bae5 R8f5 d4 Ng7 Nf1 Bf4 Neg3 Ba2 Bb1 Rd2+ Ke1 Na5 Rc1 Kf8 Bf3 Rf7 Ne4 Nc4 Re2 Rf5 Bfg2 Rff6 Rf2 Rc2 Kd1 Rh6 Re2 Bg3 Rd2 Rc3 Rb2 Rc2 Nc5 Nh5 Ne4 Rf2 Bc2 Ng7 Nfd2 Bb1
6kn/6rq/Q1rRR2Q/2R1Pp1N/rb1Nn2p/BB1N3n/b4N1K/rR4r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 Kf7 Kg2 c5 e4 f3+ Kh2 c4 b6 f2 b5 h3 e5 h4 b7 c3 g5 c2 d6 a4 d5 a3 g6+ Kg7 b6 a2 d7 Qc7 d8Q Bb4 d6 Qc3 d7 Qb3 Bc4 f1R Nc3 Ra7 Ne4 Bf8 Qd3 Ra6 Ne2 Nh6 Ba3 c1R Rb1 a1R Nd4 Rc3 Nf2 Rh7 Qg5 Bb4 d8R Be6 Rd6 Nd7 b8R Ra4 b7 Rg1 Re8 Nf6 b8N Ne4 Na6 Nf7 Nc5 Nh8 Bd5 Bf7 Ree6 Kg8 Qa6 Rg7 Ncd3 Rc6 Qh6 Qd1 Bb3 Qh5 Qc1 Qh7 Qh6 Rg3 Rhc1 Rg2+ Kh1 h2 Rc5 Rg3 Re7 Bd5 Ree6 Bc4 Bd1 Ba2 Bb3 Rh3 Kg2 h1N Kg1 Rg3+ Kh2 Re7 g7 Rg1 Rc4 Nhg3 Rc5 Ng5 Qf6 Nh3 Qh6 Kf7 g8N Ne4 Nf6 Rec7 Ne8 Kg8 Ng7 Rd7 Nh5 Rdc7 Nh1 Rcg7 Nhf2
4N3/r6Q/1K1p1N1R/rRBq4/1QpB1rrb/k1n4b/n2BB1RP/3b2Rr b - - 0 1 illegal: No possible last move, all moves rejected
3bbB1b/1N1r2BK/kP2b1nQ/n2N3p/p1qrR1Q1/5R1B/B4b2/1nRR4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kf4 c5 Kg5 Kc7 g4 Kb6 d4 h5 Kg6 e5 b4 h3 f4 e3 g5 h2 d6 c4 d5 e4 f5 a4 d7 e2 f6 e1B f7 e3 d6 e2 Nh3 c3 Nf4 c2 Nd2 Bh4 Nc4+ Kb7 b6 e1N b5 Qc7 d8R Bf2 d7 Nf6 Bb2 c1B Nd5 Nh7 Qg4 Ra6 Bg7 Nf3 Bh3 Bb2 Re8 Nd2 d8R Be7 f8B Nb1 Ra3 Be6 Rf3 Nc6 Rc1 h1B Kh6 Bbd4 g6 Na5 Rd7 Bd8 Nd6+ Ka8 b7+ Ka7 Ree7 Qc4 Re8 Rc6 b6+ Ka6 b8Q Rc7 Nb7 Bg2 Rd6 Rd7 Qc8 Bf1 Qc6 Bd3 Re7 Bdf5 Re8 Bf7 Re4 B5e6 Bf6 Be5 g7 Be8 g8B Bed4 Bf7 Rg8 B6g7 Bc3 Be7 Bb2 Kg6 Nf8+ Kh6 Ng6 Kh7 Bbd4 Bef8 Bc3 Ne7 Be5 Rdd1 Rd4 Nd5 Bef6 Bh6 Bh8 Bfg7 Rf8 Bg8 Rf6 Bf8 Rf7+ Bhg7 Rd7 Qd6 B8f7 Qdf4 Be8 Qh6 Kb5 Bf7 Ka6 Qd2 Qc8 Nf4 Bf5 Ba2 Be6 Nd5 Qc4 Qh6
1r2r2k/1bNq3R/2Q1Nn1n/1brBBr2/2Nb3P/3Bp3/1QRp4/B3n1NK b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 f4 g5 Kf2 Kg7 Kg2 d5 c4 e5 b4 a5 c5 d3 c6 e4 c7 d4 b6 g3 b5 a4 b7 e3 b6 g4 Qe1 d2 Na3 d1B Bb2 Bc5 Qc3 Nd7 b8B Nh6 b7 Re8 f6+ Kh8 f5 d3 f7+ Bd4 f8N d2 f6 Be2 f7 Nf6 Ne6 Bb5 f8N Qd7 Nc4 a3 Bd3 a2 Rc1 a1N Rc2 Ra5 Rh2 Ra8 Kh1 Ra5 Rg2 Ra8 Rc1 Nc2 Ba1 Ne1 Rc2 Ra5 Rf2 g2+ Kh2 Nh7 Rf7 Nf6 Re7 Ba4 Qb2 Rc5 Qb5 Rf5 Qc6 Bb5 Rh7+ Kg8 Ba7 Rc5 b8Q Bb7 c8B g3+ Kh3 Rf5 Nc7 Rc5+ Nfe6 Rf5 Ne2 g1R Bb6 g2 Kh2 Rgf1 Ng1 Rc5 Ba5 Rff5 B5c3 Ba8 Ba6 Bb7 Be4 Ba8 Bd5 Bb7 Nh3 g1R Bcb2 Rg7 Ng1 Rf7 Kh1 Rff8 Nd6 Ba4 Bd3 Bb5 Nc4 Re7 Qa8 Rb8 Qa3 Ree8 Bc3 Nh5 Rf7 Kh8 Qb2 Bf6 Be5 Bg7 Bg3 Bd4 Be5+ Nf6 Rh7+
rQ2nN2/Rb1Q3R/B2bR1b1/q1Nr4/N1N1P1K1/k2nRp1n/p2n3B/r7 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 d4 f5 g4 a5 b4 h5 g5 c5 e3 c4 b6 c3 g6 h3 b7 h2 g7 c2 b5 a4 b6 h4 Nc3 h3 Ba6 a3 Na4 Nd7 b8R Nc5 b7 Nf6 g8R Nd3 Rg6 Qa5 e4 Rh5 Be3 c1R Bf2 Be7 Bg3 Rg5 Ra2 Ra1 Re2 a2 Re3 Bf8 Rg7 Ne8 Rh7 Ra7 Ra8 Rh5 b8N Bb7 Nd7 Rg5 Ndc5 Be7 Rc8 Ra8 Rc7 Bf8 Nb6 Be7 Ne2 Rh5 Rg1 h1N Bh2 Nhf2 Nc3 Bf8 N3a4 Rg5 Bg3 h2 Rg2 h1B Bh2 Nh3 Rcf7 Be7 Nc4+ Kc7 d6+ Kc6 d7 Bd6 d8Q Rh5 Qb8 Rg5 Ke2 f3+ Kf1 f2 Ke2 f1N Kf3 f4 Rd7 Rd5 Kg4 f3 Rde7 Qd8 Re6 Qa5 Rb2 Bg2 Rb4 Bc8 Rbb7 Nd2 Ra7 Bb7 Nd7 Rf5 Nf8 Rh5 Nab6 Rb5 d5+ Kc5 Na4+ Kb4 Rg7 Bf4 d6 Rd5 d7 Bd6 d8N Bf1 Rh7 Be2 Ree7 Bf1 Nde6 Bg2 Ncb6 Ka3 Nec5 Bf1 Re6 Be2 Qh1 Bd1 Qg2 Bb3 Nc4+ Kb4 Rg6 Ne1 Ncb6 Rf5 Kh4 Bf7 Qg4 Rd5 Qd7 Nd3 Kg4 Ka3 Re6 Bg6 Nc4+
1r5n/1q1rnBN1/N2B3r/bB1QN3/PB1k4/QR4p1/2b3pR/Nbrn2K1 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 h4 f5 e4 b5 d4 g5 a4 c5 e6+ Kd6 h5 b3 h6 f4 h7 f3 e7 b2 e8B c4 Qd3 b4 Bd2 b3 Rh2 c3 Bf7 c2 Na3 c1R Nc2 b1N Ra3 b2 Na1 Bf5 Rb3 Qc7 Qc3 Qb6 Bb5 Qb7 Qd3 Nd7 Bb4+ Rc5 Kf1 f2 Nf3 g3 Ne5 g4 Kg2 f1R Qe3 Rf4 Kg1 g2 Qf3 Ke7 d6+ Kf6 d5 Nc3 Qe3 b1B Qf3 Nb8 d7 g3 d8N Ne7 d6 Nd1 d7 Nbc6 Ne6 Rc1 d8Q Rb8 Qd5 Ng6 Nc5 Nce7 Na6 Rh4 Qe3 Rh6 Bd6 Rg8 h8B+ Bg7 Qec5 Rgd8 Qa3 Rd7 Bb4 Kg5 Bd6 Kf4 Bb4 Bf6 Bg7 Nh8 Bf8 Ng8 Bfd6 Ne7 Nd3+ Ke3 e5 Bg6 e6 Bc3 Ne5 Bgc2 Bd3 Nc8 e7 Bd2 e8N Ne7 Ng7 Be1 Qc6 Kd4 Bb5 Ng8 Bf8 Ne7 Bd6 Ba5 Bb4 Nc8 Bfd6 Ne7 Qd5+
5kB1/n1QQ2rq/2N5/bP1Kb1rb/1Bp4R/1n1RpNNn/4QQrN/4b3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 c5 Ke3 a5 g4 e5 f4 h5 b4 a4 d4 a3 b6 h3 b5 h4 d6 a2 d7+ Ke7 f5 h2 b7 h3 d5 Nh6 g5 Ra7 f6+ Kf7 d6 Nc6 b8Q Qe7 d8Q Bg4 d7 Rg8 Qe2 Bh5 Nd2 c4 Ba3 Rb7 Ndf3 Na7 Rd1 a1B Bg2 Bc3 Rd6 Ba5 Qbc7 Bg7 Rd3 Bh8 Bb4 Nf5+ Kd2 e3+ Kc3 e4 g6+ Ke6 g7 Kf7 Qdc8 Nd4 d8N+ Ke8 Qg4 Nb3 Nc6 Qf7 Qf5 Qe7 Qfd7+ Kf7 Qa2 e2 Qd2 e1B Ne2 e3 Ng3 Re8 g8N Kf8 Nh6 Bg7 Rf1 h1R Ng4 Rg1 Ngh2 Bh8 Bh1 Rg2 Rf2 Na1 Kd4 Nb3+ Kd5 Ra8 f7 Be5 Nhf1 h2 Qe2 Re8 Ne4 Rg5 Neg3 Rd8 Bg2 h1N N1h2 Ra8 Rf1 Nf2 Bh3 Rd8 Be6 Nh3 Rh1 Kg7 Bg4 Rg8 Bf5 Kf8 Bh7 R8g7 Bg8 Rb6 Ncd4 Rf6 Nc6 Rfg6 Ng4 Nf2 Rh4 Nh3 Ngh2 Rg4 Nh1 Rg2 Ng3 Rg5 Qb6 R7g6 Nd2 Kg7 Qbc7 Qd8 Bh7 Qh8 Bg8 Qh7 f8Q+ Kh8 Be6+ Rg8 Qff2 R8g7 Bg4 Kg8 Ndf3 Re7 Be6+ Kf8 Bc3 Reg7 Bg8 Be8 Bd2 Bh5 Bb4+
nRN1b1Q1/5RN1/2pP1r1n/1Bk1R2n/rrN2N1B/2R3p1/1b4Kb/Q1q3b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 e4 g5 b4 a5 d4 f5 b6 c6 b7 f3 h5 f4 e5+ Ke7 e6 Kd6 b5 a4 h6 a3 b6 a2 e7 Ra5 e8R Ra3 h7 Na6 b8N Bd7 b7 Nh6 Ne2 Nc7 Re5 Ra4 Na3 Na8 Rh3 Be8 Nd7 g3+ Kg1 f2+ Kg2 g4 b8R Qf6 Nb6 Qg5 Be3 Rg8 h8Q Rb4 Rc1 a1B Rc3 Bb2 Qa1 Rg6 Qh7 Rf6 Qg8 Be7 Rh5 Bd8 Bd2 Bc7 Be1 Ra4 Re7 Rb4 Rf7 f3+ Kh1 Qd2 Nf4 Qc1 Bb5 f1N Re5 g2+ Kg1 Ra4 Bh4 Ng3+ Kf2 Qc2+ Kg1 f2+ Kh2 g1B+ Kg2 Nh5 Rce3 Bd8 Rc3 Be7 Nc8+ Kd7 d6 f1R+ Bf2 Rb1 d5 Qc1 Bh4 g3 Nc4 Bh2 Nd2 Ba3 Nc4 Rbb4 Qh7 Bb2 Qg8 Kd8 d7 Kc7 d8N Kd7 Rf8 Bc5 Nde6 Bcg1 Ng7 Kc7 Ne7 Kd7 Rf7 Kc7 Ne3 Kd6 Nc4+ Kc5 d6+ Kd4 Re2 Kc5 Nc8 Ra2 Re6 Raa4 Re5+
n3QR2/r5Bp/B1b2b2/3P1r1b/1qQ1Kp1n/1N1R1N2/kNr2Nr1/1n3RR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 b4 a5 d4 f5 e4 c5 g4 c4 g5 a4 g6 h3 b6 c3 g7 a3 b7 h2 b5 c2 b6 a2 Be3 c1R Qd3 Qh4 Nc3 Nh6 g8N Rc2 Nd1 Be7 Qc4 Na6 b8N Bf6 b7 Ra7 Nb2 Nc7 Na6 Na8 b8R Bb7 Rc1 a1R Rf8 Ra5 Nc5 Bc6 Nb3 Qe1 Be2 Qb4 Rf1 Be8 Bd2 Rc5 Bc3 Bh5+ Kg2 Rca5 Nf3 Rb5 Rhg1 h1B+ Kf2 Rba5 Ne1 f3 Ke3 f2 Nf3 f4+ Kd3 Bd8 Nf6 Rg8 Ng4 Bf6 e5+ Kd7 e6+ Kd6 e7 Nf5 e8R Nh4 Re3 Rc5 Ke4 Bg2 Re1 f1N Rd3 Rg5 Nf2 Rf5 Nd2 Rcc7 Ra1 Rg7 Nb3 Bh1 Re1 Rg2 Ra1 Ke7 d6+ Kd7 Qf7+ Kc6 d7 Kb5 d8Q Rg3 Nc4 Rg2 Re1 Ka4 Nb2+ Ka3 Qde8 Ka2 Red1 Ne3 Rdf1 Nc4 Qd5 Na3 Qc4 Nb1 Qec6 Be8 d5 Bd7 Qc8 Bc6 Qe8 Rh2 Rdd1 Bd8 Bg7 Bg5 Qd4 Bg2 Ba6 Bf6 Rd3 Bh3 Qe5 Bg4 Qe6 Rg2 Qc4 Bh5 Qe8
bn2R1k1/4rNp1/RQ1bB2r/RpP1B1K1/2Nn3n/3B2Rq/Q1r1n1B1/4b3 b - - 0 1 illegal: No possible last move, all moves rejected
KbN5/1Br1bp1n/1QpB1NqN/R3Q1R1/2rNr3/3r4/kn1RP3/1bnR4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 g4 a5 d4 h5 g5 h3 b6 h4 b5 h2 d6 h3 d7 f3 d5 a4 d6 f2 g6 a3 b7 a2 b6 Kb4 Kd5 Rh4 g7 Ra3 Nc3 Qf6 d8Q Re4 d7 Qg6 Bg2 f1R Na4 Na6 b8R Nf6+ Kc6 Rd3 g8N Nc5 b7 Nb3 Nh6 Be7 Bf4 Ka3 Nf3 Nc1 Nb6 Nh7+ Bd6+ Kb2 Nd4 Rff4 Rg1 h1R Ra8 h2 b8N Rg4 Qe8 Rgf4 d8R Bf5 Kb7 Rh4 Nb5 Rc4 Qf1 Rhe4 Qf2 Kb3 Rd1 Rf1 Rd2 h1N Ra5 Rg1 Qc5 Nf2 Ka8 Nd1 Nc8 Nb2 Nd7 Rf1 Rb1 a1B Qb6 Rd1 Bh1 Rdc3 Rd5 Rdd3 Nf6 Rc2 Na3+ Ka2 Nb5+ Na4 Rc5 Be5 Nd4 Bh2 Qec6 R2c3 Qd5 Bg3 Qe5 Bh2 Rab5 Nb2 Ra5+ Ra4 Kb8 Ree3 Qd5+ Nb3 Nc2 Rd2 Bf4 Bd3 Qd4 Rd1 Bd5 Re4 Bb7 Rd2 Re1 Nc1 Ka8 c6 Rd7 Rca3 Rg1 Rc4 Rd1 Bg3 Rg5 Bh2 Na1 Bb1 Nb3 Bg3 Qdc5 Bh2 Rd8 Rd7 Qd4 Rc7 Rd6 Rd7 Qdc5 Bg3 R6d2 Bh2 Nd4 Bg3 Be3 Bb8 Bf4 Rc7 Bd6 Ba7 Rb5 Rd3 Qe5 Bb8 Ra5+
1B1rb1N1/1nRPn2B/nb1r1Nr1/2Nk2N1/p2r1b2/K1pQQ2R/5Q2/Q6q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 a5 h4 f5 e4 g5 b6 g3 h5 c4+ Ka3 c3 b4 f3 h6 g2 b7 f2 b5 f4 e5+ Ke7 b6 f3 e6 Kd6 e7 g4 e8Q g3 h7 Bh3 Nd2 Nf6 Bd3 f1R Nb3 f2 Qe3 Be7 Nc5 Rf8 h8Q Ra6 Nf3 g1R Qh4 g2 Ng5 Bd7 Bh7 Ne4 Rh3 Be8 Rb1 a4 Rb3 Nc6 b8N Na5 Nc6 Qa8 b7 Rf4 b8N Nb7 Qdd3 Rd1 Nbd7 f1N Qhf2 Nfg3 Nf6 Nf5 Rb1 Bd8 Ne7 Bc7 Neg8 Ne7 Rb4 Rd2 Rc4 Rgd1 Qb1 g1B Qa1 Rd3 Bd2 Bb6 Bc1 Bh2 Bd2 Rg4 Bc1 Bf4 Bd2 Kc7 d6+ Kc6 d7 Kd6 d5 Rd4 d8Q+ Ke5 Nge6 Rg6 Be1 R1d3 d6 Rd1 Ng5 R1d3 Qg1 Rd2 Bg3 Rd1 Ng4+ Kd5 Qgf2 R1d2 Nd3 Rd1 Rc7 Nec5 Qd7 Ra5 Bh2 Na6 Qd8 Rc5 Bg3 Rc6 Nc5 Qc8 Bh2 Qf5 Qd7 Qe4 Bg3 Qh1 Qf5+ Kc4 Qfd3+ Kd5 d7 Rcd6 Bh2 Re1 Qec1 Ree6 Qce3 Ref6 Bg3 Rf8 Bh2 Bf7 Bg3 Rd8 Bh2 Be8 Bg3 Qe4 N4f6+ Ke5 Bh2 Re6 Qdd2 Bg3 Qed3 Qh1 Qd2e3+ Kd6 Rc8 Be5 Ng4 Kd5 Rc6 Bf6 Bc7 Rd6 Bb8 Be5 Rc7 Bf4 N4f6+
rB1Qbn2/1B1p2N1/n1br1k2/1BQ2q2/1b2rR2/3N2P1/2n2pKN/1N1Bb2R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 c4 f5 b4 h5 e4 a5 g6 h4 g3 h3 e5 f3 g7 f4 c5 d3 c6 h2 b6 a4 b5 a3 b7 a2 b6 d2 e6 Rh6 c7 Kf6 e7 Na6 b8N Bb7 c8B Bc6 b7 Qa5 Ba3 Qf5 Qc2 d1B Bb5 Rh4 Kf1 f2 Bd6 Bh5 Nf3 Be8 Kg2 f1N Qc5 Ne3+ Kf2 Nc4 Kg2 Na3 Rf1 h1R Bc7 Be4 Nc6 Nc2 Ne5 Bc6 b8Q Rh6 Nd3 R1h4 Bb7 Rg6 Nd2 Rgh6 Rad1 a1B Qd8 Bc3 Nb1 Be1 Bb8 Rg4 Kg1 Rhg6 Nh2 f3 Rf2 Re4 Rc1 Nh6 g8B Ng4 Bb3 Ne5 Rd1 Rh6 Rc1 Ng6 B3a4 Nd4 Bd1 Nc2 Rf1 f2+ Kg2 Ncb4 Rc4 Nc2 Ra4 Bg7 Rg1 Nf8 Rh1 Rg6 Rb4 Bh6 Ra4 Bhd2 Rc4 Bb4 Rd4 Kg7 Rc4 Rd6 Rd4 Bf7 e8N+ Kg6 Ng7 Be8 Rd5 Qg4 Rh5 Qf5 Rh4 Kf7 Rf4 Kg6 Qc8 Kf6 Qd8+
B1b4N/Qqp2QR1/r1k2N1n/r1n3Pn/2r1b1N1/1pb1QN2/4b2B/4RQK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 g4 e5 f4 b5 Kf2 h5 a4 h3 f6 b3 g5 h4 f5 h2 d6 b4 f7 b2 a5 b3 a6 e4 d5 h3 a7 Nc6 f6 Be7 f8Q Nb8 f7 Ba6 Qd4 Bf6 Bf4 Qe7 Bg2 Rh5 Qe3 Be2 Nf3 Rh4 Nc3 Nh6 Rae1 b1B Qg8 Bh8 f8Q Na6 Qgf7 Nc5 Rhf1 h1B Kg1 Bbd3 Bh2 Ba6 Rf2 Bc8 Rff1 Rb8 a8Q Rb6 Qa7 Rg4 Qf6 Ra6 Q8f7 Kd8 d7 Bg7 Qc1 e3 Ne4 Rh4 Qf5 Bc3 Nf6 Rc4 Qd3 Qe4 Rf2 Bd1 Qf1 e2 Qe3 Ra5 Qg8+ Ke7 d8N Ra6 Nf7 Ra5 N7e5 Kd6 Nh7 Ra6 Ng4+ Kd7 d6 Qb7 Nhf6+ Kc6 Nd5 Ra5 Nh4 Ra6 Rf7 Ra5 Be4 Bf3 d7 Bc2 Bf5 Bce4 Rg7 Ra6 Qf7 Ra5 Rd1 e1R Ndf6 Be2 Nf3 Ra6 Rb1 Rc1 Bh7 Rc2 Re1 Rca2 Qh5 R2a5 d8N+ Kb5 Nf7 Kc6 Bg8 Bc2 Bf4 Be4 Nh8 h2+ Kh1 Na4 Qf7 Nc5 Kg2 h1N Bh2 Ng3 Kg1 Nh5 Bh7 Bd5 Be4 Be5 Nd2 Bc3 Bg2 Be4 Nf3 Bd4 Bh1 Bc3 Ng6 Qb4 Rb1 B4d3 Nd2+ Kb5 Nh8 Bh7 Re1 Bb1 Bb7 Be4 Qa8 Kb6 Nf3 Qb5 Qb8 Qc6 Ba8+ Qb7 Qa7+ Kb5 Qg2 Kc6 Qf1
qk2Q2N/2b2K1Q/rb2NR2/2B2r2/NB1p1R1n/1npP2Nq/1Bb1b1b1/2B5 b - - 0 1 legal: proof: e4 b5 c4 g5 b4 f5 exf5 a6 h4 Bg7 hxg5 Bh6 Bd3 Bf8 Bc2 Bb7 Ba4 bxc4 b5 Bc8 b6 Nc6 Bb5 axb5 Rh4 Nb8 Rh6 Ra5 Rh1 Ra8 Ke2 e5 Ke3 c5 Ke4 h5 Kd5 h4 g4 e4 a4 b4 f4 c3 f6 h3 d3 c2 f7+ Ke7 b7 h2 a5 e3 a6 e2 g6 e1B g5 b3 g7 b2 f5 c4 a7 d6 g6 Kd7 f6 Kc7 Nc3 b1B Nge2 Bd7 Na4 Bh4 Rf1 Bg4 Qe1 Bg3 Rf4 Nh6 g8N Nd7 g7 Nf5 Ke6 h1B Nh6 d5 g8Q Bg2 Qh7 Bc5 f8B Bb6 Bc5 Rf8 b8B+ Kc8 f7 d4 Bb2 c1Q Be5 Bh2 Ng3 c3 Bf6 Kc7 Bg5 Bc2 Qe2 Qg1 Raf1 Qh1 Qe4 Be2 Bb4 Rc8 a8N+ Kb8 Nc7 Nh4 R1f3 Qf1 Rf6 Qh1 Bgc1 Qf1 R3f4 Nc5+ Ke5 Qf3 Ne6 Nb3 Qc6 Rc7 Qe8 Ra7 Bc5 Ra6 Bb4 Rg8 f8B Rg7 Bfe7 Rf7 Bec5 Rf8 Nf7 Qa8 Nh8 Qc8 Nd8 Qh3 Kd6 Bb7 Ke7 Bg2 Rh6 Rf5 Rf6 Bg1 Kf7 Be3 Rf2 Bf4 Rf3 Be5 Rf4 Bec7 Ne6+
r1k1BN2/3B2n1/nQ2Bb1K/5P2/Q1Q1RrqR/p3Q1B1/bq3pq1/1qq4N b - - 0 1 illegal: No possible last move, all moves rejected
bB2bB1k/n2Q4/1PbQ3r/1qb2Nr1/1pn2q2/1Kb2RpR/8/1BN1NBN1 b - - 0 1 illegal: No proof kernel
R1R5/1p3b1N/2R3n1/1QBBb1nK/qQ1n2p1/2r1B1BP/rRkn1N2/2nq4 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 a4 Kd6 f4 Kc5 d4+ Kc4 f6 e5 h3 c5 f7 g5 a5 g3 d6 g2 Kf3+ Kd5 a6 b3 a7 b2 d7 c4 Kg4 Ke4 f5 c3 f6 c2 d5 Bb4 f8Q Qa5 f7 Qa3 d6 Qa4 Ra2 Ne7 Be3 c1N Nf3 g1N Bc4 Ng6 Qb3 Bc3 Bd5+ Kd3+ Qb4 e4 Qb5+ Kc2 Nbd2 Rg8 Kh5 g4 d8B Be6 d7 Be5 Bh4 Nc6 d8R Nd4 Ng5 Ngf3 Nh7 Ng5 Qfb4 Rf8 Rb8 Rc8 f8B Bf7 Bg3 Rc6 Rc8 Rc3 Ra3 b1N Rh2 Be8 Bc5 Bf7 Bg1 e3 Ne4+ e2 Be3 Nd2 Nf2 e1Q Rc6 Rh8 a8R Qd1 Rac8 Rf8 R8c7 Ra8 Rc8 Qb3 Ra1 Ra2 Rg2 Qa4 Rh2 Rb2 Ra3 Ra2 Rg2 Qb3 Raa8 Qa4 Bd6 Nc4 Ne4+ Kd3 Bc5 Qdb3 Rb2 Qd1 Rb1 Kc2 Nf2 Nd2 Rb2+
2Q4R/qpr2Q2/QP2BNK1/k5B1/2n1p2B/2br1n1n/1nQRq2n/1BN2b2 b - - 0 1 illegal: No possible last move
Nk1rn1q1/Bp1q1RPN/R1r4n/1Q2n1K1/5BB1/pQR5/n1bbB1R1/n7 b - - 0 1 illegal: No proof kernel
Q1n1B2K/Bp1Qbp1P/3n1RQq/1r2n3/1Q2b3/BRr1Bn2/5qn1/k1N2N2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 g5 d4 c5 a4 g4 a5 g3 a6 b3 e4+ Kb4 h6 f3 h5 c4 h7 f2 h6 c3 a7 c2 d6 g2 d5 b2 d7 Kb3 d6 Be7 Qe1 Bf8 Bb5 f1Q Be3 c1N Qb4+ Kc2 Ne2 g1N Ra3 Qc7 d8Q Qa5 d7 Qf2 Qf6 Qa6 d8B Bf5 Rb3 Be7 Be8 Qb6 Nd2 b1N Nf1 Nc3 Qg6 Nb5 Rh2 Qc6 Bdb6 Nd6 Bbc5 Qa6 Rh3 Qb6 Rf3 Qc6 Bcd4 Qa6 Bb2 Kb1 Ba3+ Ka1 Rf4 Nc8 Rf3 Nf6 Rf4 Rg8 h8B Qc6 h7 Nbd7+ Kd4 Rb8 a8Q Nd3 e5 Ne1 e6 Ne4 Nc1 Ned6 Rf3 Bd3 Rf6 Ng2 Bg7 Ne5 Bh6 Bf8 e7 Qb6+ Kd5 Ngf3 Bc5 Qa6 Ba7 Bb1 Bhe3 Qb6 Qf5 Rg5 Qg6 Rh5 Bc6 Rf5 e8Q Be7 Qd8 Bc2 Be8 Bd3 Bg5 Qbe3 Qd7 Qf4 Bh6 Q4h4 Bf4 Qh6 Bfe3 Be4+ Kc5 Nb6 Re6 Nec4+ Re5 Nfe1 Kd4 Rc8 Rb5 Rh5 Rf5 Rc7 Rf4 Rb5 Rf5 Ne5 Rf4 N5d3 Rf3 Rc3 Rf5 Nc5 Ke5 Nbc8 Rf3 Bf8 Kf6 Ncd3 Rf4 Ne5 Rf5 N1f3 Rf4 Qh2 Rf5 Be7+ Kg7 Qh5 Kh8 Qh6 Rf6
bB4qR/QNRKBq2/1B2B2Q/5R2/1b6/qP2p3/nN1p1qn1/rkb1R2r b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 f4 a5 b3 d5 c5 e5 b6 h5+ Kh3 a4 g4 a3 b7 a2 g5 d3 c6 d2 c7 d4 g6 d3 g7 Nf6 g8R Ng4 f6 Na6 b8B Ne3+ f5 Nb4 f7 Bb7 c8Q Ng2 f6 Qa5 Be2 Qa3 Rg7 Be7 Qf1 d1Q f8B Qe1 f7 Qf2 Be3 d2 Bc4 Ra7 Qe6 Ba8 Qc1 Rh7 Bd5+ Kd3 Nf3 e4 Qg1 Kc2 Bb6 e3 Nc3 Ra6 Re1 a1B Nb5 Na2 Ne5 Bb4 Qh6 Bb2 Be6 Bc1 Nc4 Kb1 Be7 Ra7 f8R Rh8 Kh2 h3 Nbd6 h4 Nb2 Qf7 Qf2 Qg8 Rf5 Qf7 Kg1 h2+ Kf1 h3 Ke2 Qg8 Kd3 Ra5 Kc4 Ra6 Rhg1 h1Q Kb5 h2 Nb7 Ra4 Rgf1 Qg1 Kc6 h1Q Kd7 Qh5 Qff4 Qg6 Qc7 Qf2 Rh1 Q6f7 Qc5 Rh7 Qa5 Rh8 Qa7 Rh7 Qg5 Rh4 Qh6 Rh3 Rh7 Ra5 Rh8 Ra6 Rhf1 Rh1 Rc5 Ra4 Rc7 Qh4 Na5 Nc3 Nd3 Qa1 Rf3 Qf2 Rf4 Qb2 Nb7 Ra1 Rf3 Qa3 Nb2 Na2 Rf5
2K1b3/3Bq3/rr1qN1n1/QBn1NbbQ/3p2RP/2Q5/1p1B1q1R/2qk1B1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 b5 a4 d5 f4 g5 c4 d3 f6 d4 f7 g4 a5 g3 a6 d2 f5 Ke3 h6 g2 h7 b3 f6 b2 a7 b4 Nc3 b1Q Na4 b3 Rh2 b2 Nf3 g1Q Ne5 Bg7 f8Q e6 f7 Nd7+ Kd6 Bh6 c5 Bg5 c6 Ne7 c7 Qf2 Nc5 Ng6 Qa4 Rb8 a8B Rb6+ Bc6 Rg8 h8Q Ra6 Ned3 e5 Qa5 e4 Ne5 Qc2 Ne6 Nc5+ Nd7 Qdf6 Ne5 Bd7 c8B Be8 Kc7 Qd1 Bh3 Ke2 B8d7 e3 Kc8 Qg1 Qfh6 d1B f8Q Bc2 Bf1+ Kd1 Qh5+ e2 Bb5 Bf5 Ra3 Qgg3 Bd2 Qe7 Qfg7 Qgf4 Rg3 Qd6 Rg4 e1Q Qc3 Rf8 Qe7 Rf6 Qd8 Qee3 Qda5 Qe7 Ng7 Rfb6 Ne6 Qd6 Qf6 Qfe4 Qd8 Qc2 Qc7 Qc1 Qb7 Qe4 Nf7 Qee5 Qh1 Qf6 Ne5 Qff8 Bf4 Qfe7 Bd2
3BB1Rr/1n5R/2kbN3/r1qNN3/npQ3B1/p1Nr2qq/b2Pq3/1BK3Q1 b - - 0 1 illegal: No proof kernel
3B2kn/Nb1N1Nr1/1b2n3/Qn1n4/1pB1p1N1/3q2B1/BbPRr2q/R4K1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Kf7 f4 e5 h4 d5 a5 b5 h6 g5 a6 d3 h5 d4 a7 d2+ Ke2 e4 h7 b3 f6 d3+ Kf2 b4 h6 b2 f5 g4 Rh2 Ne7 Na3 b1N Nh3 Qd6 Nb5 g3+ Kg1 g2 Nf2 Qe5 Qh5+ Ng6 Ng4 d1N Bf4 d2 Bg3 Ne3 Bc4+ Nd5 Qg5 Rg8 h8Q Rg7 h7 Na6 Qh5 Rb8 a8B Nc7 Na7 Bb7 Kf2 g1B+ Kf1 Na3 Rg2 Ke8 f7+ Ke7 Ba2 Nab5 f6+ Ke6 Qh1 Bb6 Rh2 Be7 f8B Rd8 f7 Bf6 Be7 Rd7 f8N+ Kf7 Bd8 Ne6 Bc4 Rd6 Nd7 d1Q+ Kg2 Qdd4 Kf1 Qd3+ Re2 Qh5 Ba2 Bb2 Bc4 Rg8 Qe5 Rg7 h8N+ Kg8 Nf7 Qh2 Qh5 Nh8 Ba2 Rc6 Qf5 Rc3 Bc4 Qd4 Rd2 Re3 Qe5 Re2 Qc7 Bc5 Qa5 Qd3 Ba2 Bc6 Bb7 Bb6 Ba6 Bb7 Rb1 Nbc7 B6c4 Nb5 Ra1
1n4nB/1b2Nr2/2k4R/4q3/p1B2QBB/rbpQb1Qb/N1QP3K/3qq1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 c5 b4 h5 g4 a5 Kg2 f5 d6 a4 b6 h3+ Kh2 h4 b5 f3 e5 c4 b7 f4 b6 f2 e6+ Kc6 e7 f3 e8B+ Bd7 g5 Qc8 g6 Rh6 g7 Rh8 Bb2 Rh6 Nc3 Qc7 Qc2 Ra7 Bh5 Be6 Bg4 Be7 Rb1 Bg5 Nge2 Be3 Nf4 Qe7 Bd3 f1B d7 f2 d8B Qc7 Rd1 Qe5 Na2 Bg2 Rdg1 f1Q Ba1 Qe1 Bd4 c3 Bc4 Rf6 Be7 Rf7 Bg5 Ra5 Bd8 Rb5 Qd3 Qh5 Ng6 Rb3 Be5 Ra3 Qc2 Nf6 g8Q Bf1 Qf8 Ng8 Bh8 Qd5 Qh6 Qe5+ Qf4 Bg2 Bf1 Bb3 Bc4 Nd7 b8Q Bf1 Qa7 Nb8 b7 Qd1 Rg3 Bg2 Rg1 Qe1 Qad4 Bf1 Kh1 h2 Qdd3 Bh3 Be2 Bc8 Bg4 Qd1 Kg2 h1B+ Kh2 h3 Bh4 Be4 Rf3 Qe1 Qg3 Bd5 Rf6+ Bde6 Kh1 h2 Qf4 Qd1 Kg2 h1Q+ Kg3 Qhf3+ Kh2 Qe1 Qg3 Qfd1 Qf4 Na6 b8Q Bb7 Qg3 Qf5 Qbf4 Qe5 Nf8 Nb8 Rh6 Qb5 Ng6 Qe5 Bh5 Bh3 Be2 Bb6 Bg4 Be3 Ne7+
r5RN/r2krBQ1/b5B1/R2KQbqP/pr4Nn/1n2B1B1/1bqQp3/7Q b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 g5 Kd3 d5 h4 e5 f4 a5 c4 g3 b4 g2 h5 g4 f6 g3 b6 Qe7 b7 Nc6 b8Q Qc5 b5 Ra6 f5 Ra8 f7+ Kd7 f6 Rh6 b6 Bd6 f8Q Rh7 f7 Ba6 b7 Nge7 Be3 Ng6 Nd2 Nh4 Ne2 g1Q Nf3 g2 Nf4 Qh2 Qe2 g1R Ng6 Rg4 Qg7 Qb5 Bh3 Ba3 Qd2 Bb2 Rhg1 Ra7 Nh8 e4+ Kc2 Qc5 Kb3 d3 Qbe5 d4 b8B Qe7 c5 Qg5 Ra2 Qf2 Nh2 Qe2 Qc1 d2 Bf1 d1R Qd2 Qf2 Bc4 d3 Ra1 Rf4 Ng4 Ra8 f8Q+ Rf7 Rg2 Re7 Qff6 Rb1 Qf3 Qe2 Bf7 Nd4+ Ka4 Nb3 c6+ Kd8 c7+ Kd7 Rg3 Qd1 Qh1 Qc2 Qe2 d2 c8B+ Kc6 Qee1 d1B Bf5 Rea7 B5g6 Kd7 Rg1 Bde2 Qd2+ Bed3 Bf2 e3 Ra2 e2 Be3 Bb7 Bd6 Bf5 Kb5 Qd1 Kc4 Ba6+ Kd5 Qc1 Ra4 Qc2 Rb4 a4 Rb5 Rf1 Ra5 Rf4 Qec3 Re4 Bg3 Re7 Qce5 Rh6 Bh7 Rb6 Bhg6 Rb4 Rc1 Qd1 Rc8 Qc2 Rg8
R1nqn1kq/n2QQ3/1Rb1KB1q/1B1r2p1/N2bn2B/1R3rp1/3P3R/2B2N2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 h4 g5 e4 f5 b4 Kf7 e5 c5 d6 c4 d7 a4 b6 c3 b7 c2 h5 a3 h6 a2 h7 f3 Kg3 f2 b5 Nc6 b8B Na7 b6 Bc5 b7 Ne7 Bd3 Rf8 h8B Bd4 e6+ Kg8 Bb5 f1Q Qe1 f4+ Kh2 f3 Kg3 f2 Nf3 Rf7 Rh2 Qh1 Nc3 Rf8 Rb1 a1Q Bf6 Qb2 Rg2 Qh6 Na4 Qa1 Rh2 f1N+ Kg2 Ne3+ Kg3 Qc3 Rb3 Nc4 Bc7 Nd6 b8R Qb2 Rb6 Bb7 Bb8 Nec8 e7 Qc3 e8Q Bc6 Q8e7 Rf7 Q1e6 Ne8 Bf4 Rb8 Be3 Rb7 Bf2 Qa1 Nh4 Qb2 Nf5 Qc3+ Ne3 Rb8 Bb2 c1N Qd5 Na2 Bc1 Qb2 Nf1 Nc3 Qde6 Qc2 Qd5 Qch7 Be1 Qh8 Qdd6 Qc7 d8R Qd7 Qc7 Qd5 Qcd7 Ne4+ Kg2 Rf8 Bh4 g3 Kh3 Rb7 Kg4 Qd6 Qf5 Rd7 Qd5+ Rf7 Kf5 Qb8 Ke6 Qc7 Qf5 Rd5 Rd7 Qb8 Rdb7 Qc7 Rb8 Qd8 Ra8 Q6g7 Be5 Rf8 Qg4 Rf3 Bf6 Qgh6 Qf4 Q8g7 Qfd6 Qgh8 Qdd7
2K2nrb/q6B/2b1rB2/1R1p3N/k1NnPN2/1pq4R/1QB3N1/Bn1Qbn2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 d5 Kf3 Kd7 Kf4 Kc6 a4 f5 h4 b5 c4 b3 e4 g6 c5 d3 a5 d2 a6 b2 e6 b4 Ke5 g5 e7 f4 e8N f3 h6 f2 a7 g4 h7 b3 h5 g3 h6 g2 Nf3 g1B Rh3 Bb7 Ke6 Nf6 Na3 b1Q Nh4 Qb6 Ng2 Qa5 Nc4 Kb5 c6 Ng4 c7 Nc6 Kd7 Qb4 c8B Qc3 Bd3 f1N Bc2 Bb4 Nf6 Bd4 Nh5 Qa2 Bb2 Rg8 h8Q Ka4 h7 Nge5+ Kc7 Ng6 Bf5 Rad8 a8N Rde8 Rc1 Re6 Ba1 Bf6 Qg7 Qa3 h8B Nf8 Bh7 Nd4 Kb8 Bc6 Nc7 Ba5 Kc8 Be5 Qf6 Qc5 Qf2 Qa7 Bf6 Bb4 Bg5 Bh8 Bf6 Rd6 Ne6 Ba5 Nef4 Re6 Qg4 d1N Qd2 Qb2 Qf3 Nc3 Qfd1 Nb1 Qf2 Qc3 Qfd2 Qf3 Qc3 Qd3 Qb2 Qc3 Nce3 Qd2 Bd3 Rg6 Rc5 Rg8 Rb5 Qc1 Nc4 Be1 Ne2 Qd2 Nef4 Qc3 Bc2
1Rnq4/1R5B/k7/3pb1q1/2QPnQQ1/3Kn1Br/b2BnNNp/B1Qqr3 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 Ke2 h5 g4 e5 c4 a5 f4 a4 g5 a3 c6 e3 g6 h3 g7 h2 c5 e4 f5 h4 c7 a2 c6 h3 b6 Nf6 b7 Bd6 Nc3 Be5 Rb1 a1Q Nd5 Qa5 Qa4 d6 d3 Be6 c8Q Nbd7 b8B Nb6 Nf4 Ba2 g8Q+ Ke7 Qa6 Nc8 c7 d5 Qd4 Kd7 Rb7 Qb6 Qf7+ Kc6 Ng2 Qg8 Bb2 Qg5 Ba1 Rh7 Qa3 Kb5 Qc1 Ka6 Qdc3 Qd6 d4 Qd8 Qf8 Nd7 f6 Nc5 f7 Rh6 Kd1+ e2+ Kc2 e3 Qb3 Ne4 Kd3 e1Q Qbc4+ Ka5 Qd6 e2 f8B Ra6 Qf6 Re6 Qff4 Rh7 Bh6 Qd1+ Ke3 e1N Bd3 Nf3 Bb1 Nfd2 Kd3 Ree7 Ne2 Re6 Ng3 Ree7 Re1 h1N Bc2 h2 Bb1 Nf6 Ne4 Ng4 Nf2 Ne3 Bc2 Ng3 Rh1 Na7 c8Q Ne2 Qcg4 Nc8 Bb1 Qa4 Rd1 Ne4 Rd2 Re6 Rdb2 Rh8 R2b5+ Ka6 Bd6 Qf5 Bg5 Rh3 Rb8 Qff6 Bh6 Qg5 R5b7+ Ka5 Bc2 Re7 Bb1 Qd1+ Qd2+ N4c3 Bf8 Bh8 Qff5 Nf1+ Bg3 Ng1 Qff4 Re1 Ba3 Bg7 Bc1 Be5 Bc2 Ne3 Bb1 Qa4 Qdd1 Qb3 Kd2 Nge2 Bh7 Qa4 Kd3 Ne4 Qcb3 Ka6 Bd2 Qdg8 Qbc2 Q8d8 Qdc1 Qb3+ Qc3 Qd1 Qc4+
1B1qb3/2n2r1B/1Q2BRB1/1bKpn3/1p5R/6Nk/NnnP1R2/1Q1Rqq1r b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b3 a4 c5 Bg7 Bd3 Bc3 Bf1 Ba5 Be2 b5 Bf1 Bb6 cxb6 axb3 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 a4 e5+ Kc5 h5 g4 d5 f6 b4 f7 b2 f8R e4 a5 h3 f4+ Kh4 g5 e3 a6 h2 b7 e2 g6 e1N f5 Nc2 a7 Ne7 g7 Ng6 g8B Bd7 f6 Ne5 f7 Bb5 Nc3 b1B Bd3 c6 Nge2 Kh3 Na2 h4 Re1 h1Q Ng3 Qf1 Bb2 Rh7 Re2 Rh5 Re8 Rf5 f8R Rf7 Re7 Qe1 Bdh7 Qf1 Rd7 Na6+ Kd6 c5 b8Q c4 Qb6 c3 Rf2 Rc8 a8B Nc7 Kc5 Qe1 Bb7 Ra8 Bc8 Ra6 Qb7 Rh6 Bg6 Rg7 Bf5+ Ng4 Qa6 Ne3 Kd4 c2 Rf6 c1N Bfh7 Rhg6 Nh1 Nd3 Rc6 Na8 Qb6 Rg5 Bc3 Nb2 Kc5 Bg6 Rcf6 Be8 Bf7 Nc2 Rf1 Kg2 Be5 h3 Bb8 h2 R1f2+ Kh3 Re7 R5g6 Re4 Nc7 Bce6 Rg5 Bfg6 Rf7 Rf1 Rf5 Ng3 Ne5 Rg4 h1Q Rb1 Rf2 Rc1 Rh2 R1f2 Qhf1 Ra1 Ne3 Qc2 Rh1 Rd1 Bd3 Qc1 Nc2 Qb1 Bdb5 Rh4+
b1q2R2/4NRBn/Q1Nb3n/1QP4r/BRqb2rp/2k1pB2/3r2BR/b3K3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 b4 Kf7 g4 Ke6 f4 Kd5 f5 h5 g6 a5 g7 e5 g5 e3 f6 h4 f7 a4 g6 e4 b6 e2 b5 Kc4 b7 d5 b6 d3 Rh2 a3 Nf3 a2 Bg2 d4 Bh6 Nd7 b8Q Bb7 Nc3 Bd6 f8R Ndf6 Nd5 Qc8 Ne7 Kc3 Ne5 Nh7 N5c6 Ra4 Rf7 Ba8 b7 Rb4 Rb1 a1B Qa7 Rc4 b8R Ra4 Qa6 d2+ Kf2 d3 Qf1 d1Q R1b4 d2 Bf3 Qd7 Rbf8 Qc1 Bg2 e1B+ Ke2 Ngf6 g8B d1R g7 e3 Qf5 Qc8 Qfb5 Ng4 Kf1 Kd2 c4 Kc3 c5 Rd2 Bf3 Qc2 Bg2 Beg3 Bf3 Bge5 Ke1 Bd4 Bg2 Ng5 Bh7 Qa2 g8B Qc4 Bg7 Nh6 Bhe4 Nh7 Bgf3 Rg2 Bc2 Rg4 Bcd1 Ra2 Ba4 Rb2 Rf4 Rd2 Bgd5 Rg5 R4f7 Rh5 Be5 Rg8 Bh8 Rg4 Bg7 Qf5 Bg2 Qc8 Bdf3
rN1r3b/Bknb1B2/3QRRK1/Bp1PNr2/B2n4/b4q1r/2Q4p/1q1N3N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 c5 Kh5 Kc7 g4 h6 f4 h3 a4 c4 d4 c3 a5 c2 d6+ Kc6 d5+ Kc5 g5 e4 a6 Kb6 g6 h2 d7 e3 a7 e2 f6 e1R g7 b3 f7 b2 f5 Re8 f6 Be7 f8N Bb4 f7 Qf6 d8B+ Kc5 Be3+ Kd6 Ng6 c1B f8N Nc6 Qc2 Nd4 Bb5 Bd7 Nh3 Bc3 Ba4 b5 Rf1 h1R Ne5 Qf3+ Kg6 h5 Ba5 h4 Nf2 Rh3 Nh1 Nf6 g8B Rh5 Bf7 Rf5 Ra3 Rad8 a8Q Kc5 Qa6 Ra8 Bg8 Red8 Bf7 Ne8 Rf2 Nc7 Re2 Bc6 Nfd7+ Kd6 Nb8 Kc5 Nd2 b1Q Ndc4 Bd7 Ra1 Ba3 Nb2 Qa2 Rf1 Qb1 Qc8 Kd6 Nd1 Ba1 Bc3 B1b2 Qa6+ Kc5 Qf6 Ba1 Qe7+ Kb6 Ba5+ Kb7 Qd6 Rg3+ Ng4 h3 Bf2 h2 Re6 Rh3 Ne5 Nc6 Ba7 B1b2 Nd3 Bh8 Ne5 Nd4 Qe7 Rfh5 Nc4 Qfb3 Rff6 Qf3 Ne5 Rf5 Qd6
1Q2N2r/3qkR1B/2n3nP/NNR1qR1r/q7/B2p2b1/p3qN2/rbKRQ3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 f4 e5 h4 g5 c4 d5 b4 g3 f6 g2 b6 g4 h5 a4 c5 d3 c6 d4 f7+ Ke7 f5 g3 c7 a3 h6 e4 b5 a2 f6+ Kd6 b7 Ke6 b6 Nc6 b8N Ra5 b7 Nge7 Qe1 Ng6 Na3 Rh5 Nb5 Bd6 f8R Qd7 f7 Ke7 Ba3 e3+ Kc1 e2 Nh3 g1R Nf2 g2 Rh4 Rh1 Rf4 g1Q Rf5 Qg2 Rc5 Qe4 Bg2 Qef5 Be4 Bg3 Rb1 Qe5 Ra1 Nh4 Bh7 Ng6 Rb1 Qe8 Ra1 Bf5 Rb1 Qd7 c8N+ Ke6 Ncd6 Ke7 Ne8 d2+ Kb2 d1Q Ra1 Qb3+ Kc1 Qa4 Rb1 Na5 Ra1 Bb1 Nc6+ Ke6 b8Q d3 Rg8 Rg1 f8R Rgh1 Rg7 Rf1 Qd1 e1Q Rf5 Q1e2 Qe1 Rg1 Ne7 Nc6 Rgf7 Nd4 Nc6 Rgh1 Na5 Nc6 Rf8 Ke7 R8f6 Rg1 Rf7+ Ke6 Qd1 Bc2 Qf1 Qeg4 Kd2 Qf3 Rf8 Ke7 Qe2 Rb1 Qe1 Rc1 Rb1 Qfg4 Rb2 Ra1 Rb1 Qge4 Rd1 Bb1 Kc1 Qe2 R8f7+
3b4/3krQKB/3qP2r/p1q2N1N/b1n2R1N/2pq2Nq/n2BbB2/1QB3R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 f5 b4 c5 d4 h5 g4 c4 e4 h3 e5 h2 b6 h4 d6 c3 d7+ Ke7 g5 h3 g6 Rh4 b7 Rh5 b5 Rh7 g7 Qb6 d8N Ra7 d5 Rh6 d6+ Ke8 d7+ Ke7 Qd5 Qc5 b6 Rh8 Ra4 Nh6 Ne6 Qd6 d8B+ Kd7 g8N Nc6 b8Q Nb4 b7 Nf7 Nd2 Rh6 Ng7 Na2 Ne2 Be7 Rg1 h1Q+ Bg2 h2 Nh5 Bh4 Neg3 Bf6 Bb6 Bd8 Qb3 Qc5 Ne7 Nd6 Qf7 Nc4 Rb4 Qd6 Be3 Qc5 Nb3 Qd6 Bed2 Qc5 Nd4 Qd6 Ke2 f3+ Kd3 f4 Ke4 f2 Kf5 f1Q Be4 Qd3 Nf3 Qg2 Ra4 h1Q Nh4 f3 Kg5 f2 Bh7 f1B Rb4 Qf2 Ra4 Bb6 Nef5+ Kc6 Rb4 Qfc5 Ra4 Be2 Rb4 Ne3 Rf4 Bd7 Bg6 Q6d5 Kf6 Nc4 Kg7 Qh3 Bh7 Qdd6 Qbe8 Qb5 b8B Bd8 Bc7 Rb7 Bb6 Qbd5 Bbe3 Q5c5 Bf2 Kc7 Ne4 Kc8 Neg3 Ba4 Qb5 Re7 Qb1 Kd7 e6+
R1N1Q1q1/1bNKnQ2/3bpRrq/1QB3Qk/1r2r2r/2NB2P1/3p4/1N4nn b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 h5 Kc4 a5 Kc5 d5 c4 h3 f4 h2 b4 h4 g3 h3 f6 Kg6 f5+ Kf7 b6 a4 b7 d3 b5 d2 b6 a3 Ne2 d4 Nec3 a2 Ba3 d3 Qg4 d1R Qg5 d2 Bd3 Re1 Rf1 Nc6 b8N h1Q b7 h2 Na6 Ne5 b8Q Rh4 Qb5 Nf3 Kc6 e6 c5 Ree4 Nc7 Bd6 Bb4 Qf8 Ba3 Ba6 Kd7 Bb7 c6 Ng1 Bc5 Ne7 Rf3 Qg8 Rf4 Kf8 f7 Raa4 Rf2 Rab4 Rf3 Rh6 Rf4 Rg6 Rf1 Kg7 f8Q+ Kh7 f6 Rh4 f7 Rhe4 Qe8 Kg7 Qf6+ Kh6 f8Q+ Kh5 Qf8f7 Rh4 Na8 Rbe4 c7 Rb4 c8N Rbe4 Na3 Rb4 Nc7 Rhe4 Rad1 a1R Nab1 Raa4 Q6g7 Rh4 Rf6 Rbe4 Rc1 Rab4 Re1 Qg2 Rc1 h1N Rc2 Qf3 Ra2 Qe3 Qh6+ Kg4 Qf4+ Kh5 Qf5+ Qg5 Qf4 Qh6 Ra8 Nd5 Qe3 Ne7 Qg5+
k1Bn2Nr/bN3q2/rN2pp2/P2br2Q/1Nn3r1/2B1Q1QK/RQ1qb2R/8 b - - 0 1 illegal: No proof kernel
q1Rb4/Nr1b3B/r1pB1QqQ/1r1bN3/N2bnR1p/2BN2Pn/3kB2K/8 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 f5 e4 a5 g3 h5 Kg2 h3+ Kh2 h4 b6 f3 b7 a4 b5 f2 b6 a3 Be2 f1Q Bb2 a2 Nc3 f4 Rc1 a1B Nf3 Qe1 Na4 Rh7 Qd2 Be7 Rf1 Nc6 b8N Bd7 b7 Ra6 Ne5 f3 Nd3 f2 Qh6+ Nf6 Bc3 Nb4 Nc6 Qa8 b8B Bd8 Nce5 Qd2 Rc2 Qg5 Rcc1 Qg6 Rc2 Ke7 d6+ Ke6 Rcc1 Nbd5 Rc2 Bc6 d7 Nf4 d5+ Kd6 Bd2 Bd4 Bc3 Be7 d8Q+ Bd7 Qh8 Bd8 Rcc1 Ke7 d6+ Ke6 Ng4 Re7 e5 Kd5 e6 Ke4 Nge5 Ke3 Rc2 Rf7 e7 Ne4 e8B Rh7 Qf6 Rf7 Rb1 f1R Rb4 Rb1 Rc4 Re7 Bf7 Rb5 Bg8 Rf7 Bh7 Re7 Kh1 h2 Rc1 Qg5 Rf1 Nh3 Rf4 Qh5 Kg2 h1B+ Kh2 Qg6 Rc6 Be6 d7 Bf3 Rc4 Bd5 Rc5 Bg4 Rc4 Ree6 Rc5 Reb6 Rc6 Rb7 Rc4 Be7 d8N Bd7 Ndc6 Bd8 Na7 c6 Rb4 Rc5 Rb6 Rb5 Bd6 Rc7 Rb8 Rcb7 Ba1 Kd2 Rc8 Nef2 Bb2 Ne4 Bc3+
b1bNq2b/Q1QRrn2/N1pB1b1q/2Q1P1R1/BrR5/3q1pKR/2nQ4/4k3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 g4 Ke5 d4+ Ke4 b6 a5 b7 h5 g5 f5 g6 c6 g7 h3 d6 f3 d5 a4 b5 h4 d7 h2 b6 f4 d6 h3 Qd2 Nh6 g8R a3 Rg5 a2 Na3 Nf7 Nc2 Rh4 Nb4 Bg7 Na6 Ra7 Ba3 Bf6 Rc1 Qe8 d8Q a1B d7 Bh8 e3 Baf6 Ne2 Rg4 Qa5 Kd3 Qc5 Kd2 e4 Rh4 e5 Rg4 Nb4 Na6 b8Q Bb7 Qbc7 Ba8 b7 Rh4 Nd5 Nb4 b8Q Nc2 Nd4 Rb7 Ba6 Rb4 Bf1 Rh7 Bb5 Rg7 Qba7 Rh7 Rhf1 h1B Ne6 h2 Ba4 Bg2 Rg1 Bf1 R1g3 h1Q Rh3 Bb5 Rg2 Ba6 Rg5 Rc4 Nb4 Bc8 Na6 Rb4 Re1 Rg7 Re4 Qc1 Rc4 Qh1 Rhg3 Qh6 Rh3 Kd1 Q7a5 Kd2 Qdc7 Rh7 Nd8 Kd1 Kg1 f2+ Kg2 f1Q+ Kh2 f3 Kg3 Rb6 Qc3 Qd3 Bb4 Ke2 Qd2+ Kf1 Qa5 Rb7 Bd6 Rb4 Q5c5 Rg7 Nb7 Rh7 d8R Rg7 Rd7 Rh7 Qh2 Ke1 Qg2 Nd8 Qh2 Re7 Qg2 Nf7 Nd8 Qhf8 Qh2 Qh6 Qd2+
Q1B2nn1/q3br2/1P3N2/nq1p4/1pNR3B/5Br1/nQkB1KN1/3r1NRb b - - 0 1 illegal: No proof kernel
1qqb1K1N/q6Q/1p3R1n/N2q1BBn/3QbQ2/r2p2r1/Q2PB2n/1R1Bk3 b - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 e4 g5 h4 gxh4 b6 f5 exf5 cxb6 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 f4+ Kh6 g4 d5 c4 h3 c5 a4 f6 d4 f5 Kg5 c6 Kh4 f7 Kg3 f6 Kf2 c7 h5 g5 a3 g6 a2 g7 d3 Ne2 h2 Qc2 e6 Nf4 h4 Bb2 h3 Ng6 Be7 f8Q Ra6 Rg1 h1Q f7 h2 Na3 Rh3 Nc4 Qc6 Rb1 a1Q Nh8 h1Q Rg6 Nh6 g8B Rg3 Qg7 Qhg2 Qh7 Nd7+ Kd4 Bh4 f8Q+ Nf6+ Qd6 Nh5 b8Q Bb7 c8B Qh3 Qd5 e5+ Ke4 Qhe6 Qd6 Qee8 Bf5 Qb8 Bc3 Qa3 Qa2 Qec8 Bge6 Qaa4 Bg4 Bg5 Bef5 Bd8 Bd1 Q6d7 Qb4 Qac6 Rd6 Ra3 Na5 Ba8 Qbc4 Qda7 Bb4 Q6b7 Rc6 Qbd7 Be7 Qe6 Qd6 Qed7 Kd5 e4 Qc5+ e3 Bg5 Qdb7 Qc3 e2 Ke5 e1N Bfe2 Qbd7 Qcc4 Qdb7 Qf4+ Nf3+ Kd5 Ke1 Qdb4 Qcc7 Ke6 Nh2 Rd6 Qc1 Qbd4 Qf3 Rc6 Bb7 Rd6 Qg2 Kd7 Qcc8+ Ke8 Qgc6+ Kf8 Q6d7 Bf6 Be4 Bg5 Qe6 Rc6 Qd5 Rf6
1N2B3/B1b1Q2K/pqrqB2R/1k3Prn/2RQNR1q/2n1p3/2R3r1/3q1B1b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 h5 Ke4 a6 g4 d3 f4 h3 b4 h2 c4 d2 f6 d6 f7+ Kd7 Kf5 d5 Kg6 d4 f5 e4 b6 Kc6 g5 d3 c5 h4 b5+ Kd7 c6+ Kd6 b7 Kc5 c7 h3 b6 Bd6 f8Q Ra7 Nc3 Rh4 Ra2 Nd7 b8R Rg4 b7 Ndf6 Rc2 Rg2 Qe7 Nh5 Nf3 Ngf6 Ne5 Nd5 Kh7 e3 g6 Rg5 Ne4+ Kb5 g7 Nc3 g8B Be6 c8B Qb6 Ra8 Bd5 b8R Rc7 Bce6 Rc6 Nd7 Bc7 Bb2 Rg2 Qg4 d1Q Bgf7 Qd2 Be8 Qd1 Rg1 h1Q Rc8 h2 Nb8 Qd2 Qgg7 Rg5 Qd4 Qd1 Bh3 d2 Rg4 Qhe1 Rh4 h1R Rf4 Rh2 Bf1+ Re2 Ba3 Qg3 Bc5 Qh4 Nf2 Bh1 Ne4 Qc1 Ra7 d1Q Rb7 Qcd2 Ra7 Bd8 Rd7 Bc7 Rd6 Qa5 Ba7 Qb6 Bd5 Qd3 Rh6 Reg2 Bdf7 Na4 Rc4 Nc3 Be6 Q3d2 Qdf6 Qd5 Qd4 Qd6 Rd8 Ng3 Qdg7 Qa3 Rd2 Nh5 Qd4 Qd6 Rc2
Nbk1bN2/nqbr1N2/p1R1r2R/n2BpR2/8/Pbq4B/1Q3nQN/K2R4 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 e4 f6 e6 Bd6 e5 Bf8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Kd2 Kc7 Kc3 b5 Kb2 g5 e8Q d5 f4 b4 h4 g3 c4 g2 f5 a6 c6 g4 h5 d4 e7 b3 c5 d3 h6 g3 f6 d2 h7 Bg4 f7 Qd7 a3 Bh5 Qe2 d1B Nd2 Qc8 Ngf3 g1B Nc4 g2 Nb6 Ra7 Nh2 Qh3 Kb1 Qc3 Qb2 Bf2 Bd3 g1N Be4 Nh3 Bd5 Bh4 Qg2 b2 Ka2 Bc2 Rad1 Nf2 Rhf1 Bb3+ Kb1 Bh6 f8N Be3 Qeg6 Bhg5 e8R Bd8 Qc2 Ne7 Na8+ Kc8 c7 Nec6 Re6 Be8 Rh6 Na5 Qd2 Rg8 h8N Rg6 Nf7 Nbc6 Qe2 Re6 Qd2 Kb7 c8B+ Kb8 Qc2 Rd7 Qc1 Na7 c6 Bc5 Qc2 Bd6 Qd2 Rb7 Qe2 B8c7 Bd7 Rf6 Bh3 Re6 Qc2 Kc8 Qc1 Ng4 Rf5 Bb8 Qcd2 Rd7 c7 Nf2 Rc1 Qf3 Rc6 Qc3 Qc2 Kb7 c8R Bdc7 Rd8 Rde7 Rdd6 Kc8 Bf3 Rd7 Rd1 Bc4 Be4 Bb3 Bd5 Bc4 Qb3 Qf3 Kc2 b1Q+ Kd2 Qg3 Qa2 Qb6 Kc2 Bb3+ Kb1 Qb7 Ka1 Qc3+ Qb2
R5Nr/K1B3B1/pB4r1/1bPQ1qRr/1r2R3/2n1k2n/1b1bpR1Q/1q4NB b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 d5 c4 g5 b4 a6 f4 d3 f6 d4 b6 d2 h5 d3 b5 g3 f7 g4 h6 g2 f5 g3 h7 Qd5+ Kb4 e5+ Ka5 Ne7 f6 Bg7 f8B Bd7 b7 Ng6 Kb6 Ke3 f7 e4 Nc3 Nc6 b8R Nd4 Ra4 Qf5 Rh5 Nf4 Rg5 Nh3 c5 Be5 Bg7 Ne2 f8R Ra7 Ra8 Rb7+ Ka5 Be8 b6 Bb5 Qb3 Rb8 b7 Bf4 Bb2 d1Q Kb6 d2 Qd5 Qb1 Ka7 d1R Ba3 Rd4 Bb4 Rc4 Ba5 Rb4 Bb6 Be5 Nf3 g1B Bg2 Bf6 Bh1 g2 Rf7 Rbe8 b8B Re5 Bd6 Bh2 Bb8 g1R B8c7 Bf4 Rff8 Rg4 Ng1 Rg3 Rh5 Rg6 Rg5 Kf2 Rf7 Bd2 Rff8 e3 Ne4+ Kf1 Rf7 Nc3 Rff8 e2 Rf7 Bd8 Nf6 Kf2 Ng8 Ke3 Rf8 Qg4 Rf4 Bf6 Rf2 Qgf5 Ne7 Re8 h8Q Rg8 Qh4 Rh8 Ng8 Qfe4 Rgg2 Reh5 Qg3+ Qf3 Qh2 Qff5 Rg4 Nd1 Rg5 Bb2 Ra5 Nc3 Ra4 Rb3 Rh4 Rb4 Re4+
K3Rrbb/NRr2B1P/nB2N3/1Q5B/4B3/nqpb1pNr/6kQ/1b1N1q2 b - - 0 1 illegal: No possible last move
2r3R1/3K1N1p/1b2r3/1N5k/Q2Pnqn1/N1q1QBqq/1p1Rbr2/N1R1BR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 c5 Ke4 e5 f4 b5 d4 h3 a4 h2 g4 c4 d6 b3 Kd5 b2 g5 b4 g6+ Kf6 g7 e4 d7 b3 a5 e3 a6 c3 a7 c2 Ra2 e2 Na3 e1R Bd2 c1Q Be2 b1Q Bf3 Be7 Ne2 Rf1 Be1 Qd3 Rd2 b2 Qa4 Qdc7 d8N Qe3 Nf7 Q1c3 Nc1 Ba6 Nb3 Be2 Na1 Nh6 g8R Nd7 Rhg1 Rb8 a8N Nc5 Rh1 Qce5+ Kc6 Rc8+ Nc7 Ne4+ Kd7 Ng4 Ncb5 Rf2 Rf1 Rc6 Rc8 Kg7 f6+ Kg6 f5+ Kh5 Rc7 Re6 Rc6 Qb3 Rc1 h1Q Nfd6 Rc8 f7 Rg6 f8Q Bd8 f6 Qg3 f7 Bb6 Qd8 Qb4 f8R Qhh3 Nf7 Qbc3 Rg8 Re6 Qc7 Qg5 Qf4 Qf6 Qe3 Qh6 Qc2 Qhf4 Qa4
N3BK2/1R2R1PR/p4kqr/Q1Bbb3/8/2RQpB1r/q1nq4/bBNq3n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 c4 e5 g4 d5 f4 h5 b4 e3+ Kd3 e2 f5 e1B f6 a6 b6 h4 c5 h3 b5 h2 b7 Rh3+ Be3 Ke6 b6 Qd7 g6 Qd8 g5 Nc6 b8R Qe7 b7 Qc7 g7 Nce7 c6 Rh4 f7 Bd2 g6 Bc3 Nd2 Qa5 c7 Rh7 Nc4 Rh3 Ne2 Qa2 Rc1 Nh6 g8B Nef5 g7 Bd6 Bg2 Kf6 Bf3 Ng3 Nb6 Be6 c8B Nhf5 Bh7 Ba1 f8Q+ Bf7 Re1 h1Q Rc3 Qg1 Bd7 Nh1 Nc1 Qg6 Be8 Bc7 Bg1 Rh6 Re4 Ne3 Qc5 Nc2 Qa5 Bd6 Rbc8 Bg8 b8R Be6 Kd2 d3 Bc5 d4 Rb7 Bd5 Rd8 Rb8 Na8 Rh3 Rh4 e4 Rdd7 Be5 Re7 Rc8 Qe2 Rc6 Qe3 Qg5 Bf5 Qg6 Rh7 Rd6 Kd1 d2 Qd3 e3 Ke2 Qh6 Qc4 Qg6 Kd3 Bg8 Ke4 d1Q Qd5 d3 Qc4 Re6 Kd5 d2 Bd3 Qe2 Bde4 d1Q+ Bd3 Nd4 Bb1 Qad2 Qd3 Nc2 Bd6 Bf7 Kc6 Qh2 Kd7 Qhf2 Bb4 Rb6 Bc5 Bd5 Bf7 Qfe2 Ke8 Rd6 Kf8 Rb6 Qd4 Qc4 Qd3 Qa2 Be8 Rb4 Bc6 Rbh4 Ba4 Rh6 Be8
1n2NRRr/5bPB/p1N1p1r1/3N4/R1b2nbb/2B4r/Q3Qq1N/K2R1q1k b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Nc6 g4 Kf7 b4 Kf6 d4 h5 Kd2 a6 Kc3 e3 Kb2 h3 b6 h2 g5+ Kf5 g6 Ke4 b7 e2 b8Q e1R f5 h4 f6 h3 b5 Ra7 g7 Rb7 b6 Re3 f7 Nf6 d6 Nd5 d7 Nf4 d5 Qe8 d8R Bg4 d6 Ra3 Ne2 Kf3 d7 Rd3 Rg1 h1B Bd2 h2 Ra4 Kf2 Bg2 Rdh3 Be4 Bhf3 Ng3 h1B Bf5 Be2 Nc3 Bd5 Bh7 Kf3 Re1 Kg2 Nf1 Kh1 Ka1 Bb3 Rc8 Bb5 d8R Qd7 Qa8 Qd4 Nh2+ Bf1 Qa7 Qf2 Ra8 Rb8 b7 Bd5 Re8 Rd8 b8N Rd6 Qb7 Rg6 Qbb3 Bde6 Qa2 Bd5 Nd7 Bb3 Rad8 Nb8 Ne5 c5 Nc6 Bbe6 Nd5 c4 Qdc2 c3 Qd3 c2 Bc3 Re3 Rb1 c1Q Qdc2 Bd3 Qe2 Qcf1 Rd1 Rh3 Rc8 Bc4 Rcd8 Bd7 Rc8 e6 Red8 Bc5 f8N Be8 Nd7 Bf8 N7f6 Bf7 Re8 Bc5 Rg8 Be7 Rcf8 Bd8 Ne8 Bf6 Nd6 Bh4 Ne8
1kr1Rr1Q/qb2Q1p1/1NP2npN/8/2B1qNRb/1B6/3KBr2/rNB1n1q1 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qb6 g5 Qd8 g6 hxg6 b4 d5 c4 Kd7 e4 Kc7 h4 f5 h5 a5 b6+ Kb7 e6 f4 e5 d3 c5 f3 h6 d4 h7 f2+ Kd2 a4 c6+ Ka6 b5+ Ka5 e7 a3 e8B a2 e6 Qd5 e7 Nd7 b7 Kb6 b8N Kc7 Rh4 Ngf6 Ne2 Bb7 Qe1 Qe4 Rg4 Nc5 Nd7 Rc8 Nb6 Kb8 Bf7 Rg8 e8B Be7 h8Q Rf8 Nf4 Bd8 Be2 f1R Be6 Rf2 Bb3 Be7 Bef7 Bd8 Kd1 d2 Bfc4 Nd3 Kc2 d1R Qb4 Re1 Qe7 Rg1 Kd2 Ne1 Nbd5 d3 b6 Qe6 Ne3 Qe4 Nf5 Rh1 Nh6 Rhf1 Nc3 Rh1 Rb1 a1Q Rb2 Qa7 Nb1 Ba8 b7 Rg1 Kc3 d2 Rc2 d1Q Rd2 Bb6 Rd8 Rh1 Re8 Bc7 Ng2 Bg3 Nf4 Bh4 Qe6 Nc2 Qe7 Qg1 Kd2 Ne1 Qc5 Kc7 b8N Bb7 Qa3 Bg3 Nd7 Bh4 Nb6 Kb8 Qe7 Rh3 Ba2 Ra3 Bab3 Ra2+ Kc3 Ra1 Kd2
3qrb2/Nr1q1pkn/R1BB4/P1r3p1/N1bQ2NB/1n5B/5RK1/Qn1N1n2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 b5 a4 c5 e4 b3 d4 f3 h4 c4 e5 g6 d6 c3 d7+ Ke7 e6 Kf6 d5 b4 d6 c2 e7 b2 e8B b3 h6 Qa5 d8N Bg4 d7 Bd6 h5 Be7 h7 Qd2+ Ne2 Bb4 h6 Ba5 Nc6 Be6 Na7 Bb4 Nc3 b1Q Bh3 b2 Rh2 Na6 d8B+ Be7 Ra3 Nc5 Bc6 Qd7 Bf4 c1R Bd6 Nb3 Rg2 Qe4 Qd4+ Qe5 Ra1 b1N Nd1 Rb8 Nec3 Rb7 Kf1 Bd5 Rf2 Bc4+ Kg1 Kg5 Raa2 Nf6 Ra3 Re8 h8Q Qee6 h7 Qd5 Qg7 Kh5 h8N Nh7 Ra1 Bf8 Bh4 g5 Ng6 Qa5 Ne5 Qad8 Ng4 Rc2 a5 Rc1 Na4 Rc3 Qge5 Kg6 Raa2 Rc1 Rad2 Rc2 Qa1 Rc3 Qd5 Kg7 Rd4 Rc1 Rf4+ Rc3 Rf6 Rc1 Qdd4 Rc3 Rd2 f2+ Kg2 f1N Rdf2 Be2 Qe3 Rc5 Qed4 Bc4 Bf3 Nc3 Be5 Kh8 Ra6+ Kg8 Bd6 Nb1 Ne5 Kh8 Bc6 Kg7 Ng4+
1b1R1r2/4PNBB/K1nQ2B1/Qpp3n1/4r3/q1B5/q1r1QNq1/1b1QR1kr b - - 0 1 illegal: No possible last move
rQ4Q1/R2np3/RQb2k2/Pb1p3K/2q2N2/1R1BR2n/2n1rBQ1/1n1q2bN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 d5 Kg4 g5 c4 b5 h4 b3 a4 d3 f4 b4 h6 d2 h5 b2 c5 b3 c6 Qb6 h7 Be6 h6 Qa6 c7 Nd7 c8R Qb7 Rh3 Qa7 Qc2 d1B+ Ne2 Ne5+ Kh5 g4 f6 g3 f5 g2 Rb8 g1N Nd2 b1N Ne4 b2 Rbb3 Qe3 Ng3 Nef3 Nh1 Ra6 Nf4 Qd4 Qg2 Ra7 Bd3 Qc4 Be3 Bg7 Bf2 Ne1+ Rf3 Bc2 Re3 Bd7 Raa3 Bb5 Ra2 Ke8 f7+ Kd7 f8Q Ra8 f6 Nh3 f7 Bd4 Qb8 Nf6+ Kh4 Bd1 f8Q Nc2 Qb6 Be2 Qfg8 Bc6 Raa3 Kd6 Ra1 Nd7 Ra2 Bf1 Kh5 Bc5 Q8g3 Rhg8 h8R Rg6 h7 Re6 Qg8 Re4 Qb5 Ke5 Qb6 Kf6 Qgb8 Bd4 Rc8 Bc5 Rc7 Bd4 Ra7 Bc5 Re1 Re2 h8Q+ Kf7 Bg3 Bg1 Qhg8+ Kf6 Bf2 Nba3 a5 b1Q Rab2 Qc1 Ra6 Nb1 Ra7 Rd2 Re3 Re2 Q6c7 Qd1 Rb6 Ng5 Rba6 Nh3 Rb3 Re1+ Be2 Qcd4 Bf3 Bb5 Qcb6 Re2 Be4 Qc4 Bd3
N3QK2/B1b1pRr1/1P6/2q1r2Q/q1bQB1r1/2R4N/kQ1pn1Nq/3N1rn1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 h5 Kc4 a5 Kd5 a4 g4 d3 c4 d2 f4 d6 b4 h3 b6 h4 b5 h2 g5 h3 c5 a3 f6 a2 f5 Nh6 c6 Qc7 b7 Ra5 Bg2 Rh7 Be4 Rg7 Nc3 Nd7 b8Q Ba6 Qa4 d1Q+ Qd4 Qg4 Nd1 Ne5 Be3 Nf3 Rc1 a1R Rc3 R1a4 Bf2 Qa7 c7 Qh4 Kc6 d5 Kd7 Qc5 c8N Qf4 Nb6 Qg4 Ne2 Ng1 Nf4 Rb4 Ng2 Rc4 Qd2 d4 Na8 d3 Qd6 Rb4 Qb2 d2 Qd4 Qh4 b6 Bd3 Bg3 Bc4 Bb8 Qg4 Nde3 Qd1 Ba7 Qa4+ Kd8 Ne2 Rf1 h1R Rf2 h2 Nd1 Ng4 Rf1 Ne5 g6+ Kg8 Rf2 Rf1 Rf4 Rab5 Ke8 h1Q Rf2 Nf3 f7+ Kh8 f6 Nfg1 Rf5 Qh2 Rf4 Rg8 Rff3 Bh6+ f8N Bf4 f7+ Rg7 Nh7 Bc7 f8Q+ Bg8 Qf4 Bc4 Qfd6 Kg8 Ng5 Bb3 Nf7 Qc4 Bb7 Rh7 Qg4 Re5+ Qdd7 Qc5 Qh5 Rg4 Be4 Kg7 Ng5 Bd5 Rfd3 Kf6 g7 Bb3 g8Q Rg7 Nh3 Ba2 Qdb5 Bd5 Qf8+ Ke6 Qf2 Kd6 Rf3 Be6 Bf5 Kd5 Kf8 Bg8 Qbe8 Be6 Ra3 Kc4 Be4 Bd5 Rf7 Be6 Qc1+ Kb4 Rc3 Bc4 Rc2 Kb3 Rc3+ Ka2 Qe3 R4g6 Qd4 Rg4 Qb2#
6kB/3pQn1q/1q1R1nN1/1N1Q3b/1QR1QRb1/RPbB4/1r3p2/Kbr2n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 h4 f5 c4 Kf7 Kc2 a5 e4 g4 b6 a4 b7 f3 e5 f4 h6 f2 h7 a3 h5 g3 b3 g2 c5 a2 Kb2 d3 h6 f3 c6 d2 c7 Qe7 Rh4 Bg7 Bd3 f1B Ne2 g1Q Na3 Qb6 Nf4 f2 Nb5 Nf6 Ng6 Nc6 b8Q Bh3 Rf4 Bb7 c8R Nd8 Rcc4 Be4 Qg4 Re8 h8Q d1B h7 Ra4 Qg2 Bhg4 Qh1 Bef5 Qe4 Bh5 Bd2 Bdg4 Bc3 Rf8 Rd1 a1N Qd6 Nc2 Qb4 Ne3 e6+ Ke8 Ra1 Nf1 Ra3 Nf7 Qg8 Ra5 h8R Ra6 Ra1 Ra2+ Kb1 Re2 Rh6 Bh8 Ra3 Rb2+ Ka1 Bg7 Qh7 Rg8 Qd5 Rf8 Be2 Bb1 Bd3 Rg8 Nf8 Bh8 Qhe4 Rg7 Ng6 Rg8 Ne5 Kf8 Ng6+ Kg7 Be5 Rc8 Bd4 Kg8 Bc3 Qf8 e7 Qg7 Be5 Qh7 e8Q+ Kg7 Qee7 Kg8 Rd4 Rcc2 Rc4 Rc1 Nh4 Ne8 Rd6 Bf6 Bc3 Be5 Ng6 Nf6 Bd2 Bd4 Be3 Bc3 Bd4 Ne8 Bg7 Nf6 Bh8
R3N1KN/qr1p1pN1/1rBPQ3/n1Bn1B2/3Q1k1r/q3R2q/1b6/1B1N1r1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 c4 h5 g4 f3 e4 f2 d4+ Kg6 d5 h3 d6 a4 b6 h4 b7 h2 c6 a3 c7 h3 c5 a2 g5 Rh4 c6 Rh8 Nf3 Ra6 Qd4 Rh5 Ba3 Nh6 Nh4+ Kh7 Bd3 f1R Nc3 Ra5+ Bc5 Rg1 Ng6 Nf5 Bb1 Bh6 Nd1 Ne7 Kf6 Rg4 e5 Bf8 e6 Rhh4 Re1 h1R Re3 h2 Nh8+ Re4 g6+ Kh6 g7 Rb5 g8B Rb6 Bh7 Rf1+ Bf5 h1Q Qb2 Qh3 Qd4 Ng6+ e7 Nf4 Qe5 Reb4 Qd4 Na6 b8N Bb7 c8Q Qc7 e8N Bg7+ Ke7 Be5 Kf8 Kg5 Ng7 Nd5 Kg8 Rb3 Qf8 Nab4 Qe8 Ba8 Na6 Qa7 c7 Nc6 c8B Na5 Nc7 Rb7 Bfd3 R3b6 Bf5 Bf6 Qe6 Be5 Bbe4 Kf4 Nce8 Bf6 Rc1 a1Q Bb1+ Kg5 Rc4 Qa3 Ra4 Be5 Qe4 Bb2 Qd4 Rc7 Ba6 Bc6 Bad3 Rcb7 Bfe4 Kf4 Bb5 Nc3 Bf5+ Be4 Bc6 Nd5 Qb4 Nb3 Ra6 Na5 Qd2 Bh1 Qd3 Qb8 Ra8 Qa7 Qd4+
1KNB1b1r/2p1rB1N/Q3QR1p/1NR1b3/N1n1rn1P/B3q3/qr2qB2/k7 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 dxc4 Qa4 exf4 Qd1 f3 Ra6 f4 Ra1 Bf5 gxf5 Qd6 Qb3 Qd5 Qd1 Qd8 Kf2 Kf7 e4 Kf6 d4 g5 b4 a5 h4 a4 d5 Ke5 d6 g4 b6 c3 f6 h6 b7 a3 b5 c2 b6 a2 d7 Ra3 f7 Qc8 d8B Ra6 Qe1 Kd4 e5 Be7 f8N Ra4 e6 Bb4 e7 Qe6 e8N Nc6 b8B Ne5 b7 Nf6 Nc3 Nd5 Nh7 Nc4 Ba3 c1R Nd6 Rb1 Nc8 Rb2+ Nge2+ Kd3 Ba7 Kc2 b8Q Bf8 Rd1 a1B Qb6 Qf7 Qa6 g3+ Kg1 f2+ Kg2 Qe6 Kf3 g2 Nb5 g1Q Nec3 Kb3 Bg2 f1Q+ Bf2 Rb4 Na4 Ka2 Bh3 Qf7 Ke4 f3 Rb1 Nf4 Rc1 Qe2+ Kd4 Qg5 Be6 Qg3 Rf1 Qfg8 Be3 f2 Bf7 Q3g5 Ncd6 Qe7 Kc5 Qe6 Bd4 Q6e3 Kc6 Qg2+ Kd7 Qh2 Kc8 Qg2 Rh1 f1R Kb8 Rf3 Nc8 Rg3 Na7 Rg7 Rf1 Qh2 Nc8 Qhf2 Be8 Re7 Bf7 Qb3 Nc5 Ne5 Ka7 Nh5 Be8 Rb1 Nd3 Qeb2 Qe4 Qfe2 Rf6 Nf4 Bf2 Rd4 Qf3 Re4 Qg4 Qe3+ Ka8 Qbe2 Rc5 Nc4 Bf7 Be5 Kb8 Ka1 Nb2 Qa2 Na4 Rb2 Qge6
2R1Q1r1/qpPr2r1/4Rb2/1r2BQn1/N1bBN3/3rn1Br/B3pK1N/3kN3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Kf7 f4 Kf6 c4 d5 h4 g5 a5 e5 h6 d3 h5 d4 a6 e4 a7 b3 c5 e3 c6 b2 c7 g4 h7 g3 h6 g2 Ra6+ Nc6 Na3 b1R Qc2 Qd5 Nf3 g1R Nh2 Rb8 a8N Bg7 Nb6 Qa2 Na4 Be6 Ra8 Rf8 Rc8 Ne5 Qc5 Bd5 Nc2 d2+ Ke2 Rb5 Ne1 d1R+ Bb2 Kf7 f6 Ke6 f7 Nc4 f5+ Ke5 f6 Ke4 Bh3 Re8 f8B Rd3 f7 Bf6 Bd6 Rg7 f8N Qa3 Kf1 e2+ Kf2 Ne3 Bg3 Bc4 Ne6 Rd8 Qf8 Qc5 Bg4 Qa7 Bh5 Rdd7 Bf7 Rc3 Rf1 d3 Ng5+ Kd4 Ba1 d2 Ne4 d1R Bb2 Rd3 Bd5 Bh4 Qf5 Nf6 Rh1 Rf8 h8B Nh7 Rf1 Ng5 h7 Rg8 Be6 Bd5 Rh1 Kc4 Ba1 Ra3 Bd4 Kb3 Rg1 Bc4 Bd5 Rge7 Bhe5 Rf7 h8Q Rfg7 Ng2 Kc2 Ne1+ Kd1 Qh5 Ne6 Qe8 Bf6 Rh1 Ng5 Be6 Rb6 Rg1 Ba6 Ba2 Bc4 Bh4 Rac3 Rg4 Rbb3 Bhg3 Rb5 Rh4 Ra3 Rh6 Nf1 Kg2 Be7 Kg1 Rdc3 Bgf2 Rh3 Bh4 Ne3 Re6 Rd3 Kf2 Bf6 Bhg3
K2R2N1/1B1rQ1N1/n1R1bPB1/3bq1B1/QB6/1n2ppR1/1k1n1b1b/3nrR2 b - - 0 1 illegal: No proof kernel
1rN2R1q/2bk4/n2ppQRQ/N2r4/PQ2r2Q/2b3b1/n5B1/R1BrR1Kb b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 c4 g5 a4 b5 f4 e6 Kf2 b3 h4 b2 h5 b4 c6 d6 h6 b3 c7 Qd7 h7 Ne7 f6 Bb7 c8Q+ Qd8 c5 Ra5 c6 Bg7 f5 Rd5 c7 Na6 Bg2 Nc6 Ne2 g3+ Kg1 g4 Qe1 Ncb4 Qb8 Kd7 c8R Na2 f7 Bc3 Nd2 b1R f8R b2 f6 Rg8 h8Q Bc6 Bf3 g2 f7 Qf6 Qh7 Qh8 Nd4 Rgg5 Qg7 Rge5 Nc4 Re4 Qh6 Ba8 Qb4 Bc6 Bf4 Rd1 Bc1 b1R Nf5 Ba8 Na5 Bb7 Kf2 g1B+ Kf1 g3 Bg2 Bb6 Ne7 Bd8 Kg1 Bc7 Rg8 Bc6 f8Q Rb2 Qff6 Ba8 Qc5 Rb8 Qb4 Bc6 Rg6 Bb7 Bh3 g2 Rf8 Ba8 Nc8 Bc6 Kf2 g1B+ Kf1 Be3 Bg2 Bf4 Kf2 Bh2 Rf1 Bg3+ Kg1 Bb5 Qef2 Be2 Re1 Bf3 Bf1 Bh1 Bg2 Rg4 Qfh4 Re4 Qff6
1N1K1n2/1B2BpB1/2N1rR2/1B1k3n/p1n3br/b4bN1/1PQN3n/2Qqb2R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Rh3 Ke7 Kf2 Kd6 Kf3 h5 Ke4 c5 d4 a5 g4 c4 b6 a4 b7 c3 g5 c2 g6 f3 g7 f2 Bh6 c1B Bg2 f1N Rf3 h3 Rf6+ Be6 Qc2 Nd7 b8N Ne7 g8Q h2 Qg5 h1B Bg7 h4 e3 h3 Ne2 Ng8 Ng3 Ke7 d6+ Ke8 d5 Ne7 Qf4 Nb6 Ke5 Ra6 e4 Rh4 Bf3 Bg4 Qe3 Nf5 d7+ Ke7 Bg2 Nd6 Qed2 Qe8 d8N Qd7 Qe1 Be3 Qed2 Bf2 Qe1 Qb5 Nd2 Qe2 Qed1 Nb7 Rb1 Nc5 Ra1 Ne6 d6+ Ke8 d7+ Ke7 Ra3 Qe1 Raf3 Qe2 Qdc1 Be1 Rf2 Qd1 Bf3 Nc8 Rh2 Nd6 Kd5 Rb6 e5 Nc4 Bg2 Nd4 Be4 Bhf3 e6 Ra6 Kc5 Rd6 Bb7 Rc6+ Kb4 Kd6 e7+ Ne6 Kb5 Kd5 e8B Ba3 Rh1 Nb6 Rg1 Nf8 Ka6 Ke5 Kb5 Re6 Ka5 Nc4+ Kb5 Nd6+ Kb6 Nc4+ Kc7 Kd4 Ndc6+ Kd5 d8B Re3 Be7 Re6 Kd8 h2 Nf5 h1N Ncd4+ Ke5 Bd7 Nh2 Bb5 Ng3 Rh1 Nh5 Ndc6+ Kd5 Ng3
6bQ/KRq4N/p2Br1BQ/1rB3Qr/1qp1BN1R/k1Q3b1/n1Pr4/2r1q3 b - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h3 f5 Bc4 Nd7 Be2 Ne5 Bd3 fxg4 Bf1 g3 h4 g4 Qe2 Nf7 Qd1 Ng5 hxg5 Be6 Rh3 Bd7 Rh1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 h4 f4 h3 g6 h2 g7 e6 f5 e3 b6 a6 f6 c6 b5 e2 b7 e1R b8Q+ Qc7 b6 g2 f7 g3 b7 Nf6 g8B Rh7 Nc3 Rh5 Rb1 Ne4 Nd5 Nc3 Nf3 g1R Bg2 Na2 Nf4 Rb5 Ng5 e5+ Kc4 c5 d4 e4 d5 e3 Nh7 e2 Qd4 Bd7 Be3 Be6 Be4 g2 Qc3 Rd1 Qc8 e1Q b8B Rd2 Bf2 Be7 f8Q Ra7 Qfg7 Bh4 Bf7 Bg3 Bfg6 Bg8 Qh6 Rab7 Qf5 R7b6 Qfg5 Rc6 Rb3 Qb1 Bd4 Rc1 Rb4 g1Q Rb3 Ra5 Rb7 Qe1 Bf2 Rb5 Bg1 Kd7 Bd4 Re6 d6 Rg2 Kd5 c4+ Bc5 Qb4 Qge5 Kc8 d7+ Kd8 Qh8 Re2 Rf1 h1R Kd4 Rhh2 Rh1 Rh5 Rh4 Rg2 Bca7 Ke7 Bb6 Kd6 B6a7 Re7 d8Q+ Rd7 Qdg5 Re7 Bb6 Re6 Bc5+ Kd7 Bd3 Kc6 Bdf5 Rd2+ Bd3 Qf7 Be5 Qc7 Bed6 Rb6 Be4+ Kb5 Bg6 Ka4 Kd5 Rde2 Bde4 Rb5 Kd4 Qd8 Kd5 Rd2+ Kc6 Qb8 Rb6 Qd8 Kb7 Qc7+ Ka8 Qa5 Rb7 Qb4 Qcf6 Ka3 Ka7 Qe3 Qa1 Qe1 Qac3+
1nq1rq1b/N3r2n/1K1B2N1/3RR3/1p1RR3/BQ1q3p/1PBqQ3/1nkqB3 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 b5 h4 e5 fxe5 g5 d3 gxh4 Be3 Bb7 a5 f5 a6 h5 axb7 Kf7 Kd2 Ke6 Kc3 Kd5 g4 a5 g5 c5 d4 Ke4 g6 h3 d5 h4 e6 a4 g7 h2 e7 h3 d6 f4 d7 a3 Bd2 f3 Be1 f2 Nf3 Ke3 Nh4 a2 Na3 Nf6 g8Q Rh7 e8R+ Re7 Ng6 Bg7 Bg2 f1Q Be4 Qc8 d8B Bh8 Bc2 Qff5 Rg1 h1Q Rg4 Nh7+ Rd4 Qhe4 Bc7 Qff4 Bd6 Qf8 Rb1 a1N Qd5 Nc6 b8B Nb3 Ra1 Nd2 Rc1 Rb7 Re5 Re7 Bbc7 Rb8 Ba5 Ra8 Bb4 Nb8 Qb7 Ra7 Qa6 Re8 Qa4 Rg7 Qb3 Rge7 Nh4 Kf4 Rdd5 Qg6 e4 Ke3 Rd4 Qgf5 Ng6 Qfd7 Red5 Qdf5 e5 Qf1 e6 Q1f5 Be4 Nb1+ Kc2+ c3 Re5 Rf7 e7 c4 Qg4 Qf1 Rcd1 Qf3 Rdd5 Qf1 R1d4 Qd3+ Kc1 c2 Qe6 Rd8 e8R Ke2 Re7 Kf1 Re8 Nc3 Nb1 Qg3 Kd2 Qg2+ Ke3 c1Q+ Bd2 Qg3+ Bf3 Re7 Ba3 Qd1 Be1 b4 Rd3 Qd2+ Kd4 Qd1 Be4 Ke2 Nd2 Nb1 Nf3 c3 Qg4 Qb7 Kc5 c2 R3d4 Qc8+ Kb6 c1Q Qh5 Qdd2 Qg4 Q1c2 Bd3+ Kd1 Ree4 Rg7 Nfe5+ Kc1 Nc6 Qcd1 R8e5 Re8 Na7 Rge7 Bc2 Qgd3 Qe2
R1B1r3/n3Bk1p/r2p1n2/7q/n1Q1B1nP/q1qb2R1/1R2nBN1/N1QK3R b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 b4 a5 e4 g5 c4 d6 h4 g4 c5 g3 f5 a4 f6 d3 f7+ Ke7 f8B+ Kf6 b6 g2 c6 a3 b5 a2 e5+ Kg6 e6 Ra4 b7 Qc7 e7 Rc4 e8R Bf5 b6 Nf6 Ne2 g1N Re3 Kf7 Na3 Ra4 Bg2 f1Q Be7 f2 Rg3 Re8 Nc2 Qc8 c7 Nc6 Rb1 a1Q b8Q Ra6 b7 Na7 Nf4 Qa3 Na1 Be4 Bb2 Qe2+ Kc1 f1N Qd2 Qa5 Bd4 Qeh5 Bf2 Qa3+ Rb2 Nh2 Bf3 Nhg4 Ng2 Bg6 Qe1 Bf5 Kd2 Ne2 Qc1 Nc3 Bc6 Na4 Ke1 d2+ Ke2 Bd7 Be4 d1N Kd2 Ndc3 Kc2 Qd8 c8B Ne2 Qc7 Bb5 Kd1 Bd3 Q7c5 Qc7 b8R Qa5 Ra8 Q5c3 Qc4+
1r1q1qb1/p1r1QB1Q/P2N3B/1RBKb1Q1/b5QN/R1kB1p2/2brq1n1/8 b - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Nb4 h5 Nc6 Na3 Ne5 Nb1 Ng6 hxg6 Bd7 Qg4 Bf5 Qd1 Bc8 Ke2 Kd7 a4 Ke6 d4 Kd5 g7 Kc4 a5 h5 c3 f5 c6 b5 a6 e5 d5 e3 Kf3+ e2 c7 e4+ Kf2 b4 g6 h4 d6 f3 Ke3 f2 d7 h3 Qa4 h2 Qa3 b3 Qe7 b2 Ra3 Rb8 Nf3 Rh7 Nh4 Nh6 g8Q+ Rf7 g7 Ng4+ Kf4 Ne3 Ke5 f4 Qh7 Ng2 g8Q e3 Qgg5 Bg7+ Ke4 Be5 Nd2+ Kb5 Rg1 h1B Kd5 b1B Nc4 e1Q Bd3 f1Q Bd2 e2 Nd6+ Kb6 c4 Bc2 Bc1 Qb4 Bd2 e1R Bc1 Ba4 c5+ Ka5 c6 Rd1 Be3 Qe2 Bc5 Rd2 Rb1 Bb7 c8B Ba8 Bb7 Rg7 c7 Rf7 Ke6 Rg7 Bf3 Be4 c8Q Bg6 Kd5 Bf7+ Qe6 Bg8 Bh5 Rf7 Ra2 Qa3 Qee7 Bc2 Rb5+ Ka4 Ra5+ Kb3 Rb5+ Kc3 Ra1 Qaa5 Ra2 Qf8 d8B Qc7 Qce6 Qd7 Bdb6 Qdd8 Qeg4 Rg7+ Qee6 Rc7 Bf7 Ba4 Qee7 Ne1+ Ke6 Be4 Ra1 Bg6 Kd5 f3 Be3 Ng2 Bbc5 Qh6 Qgf6 Qhf8 Bh6 Bf5 Qfg5 Bd4 Bc4 Bfc2 Bd3 Be5 Ra3+
b3Nn1b/1RQqk1p1/N1bqb3/3BB3/6PB/1RN4b/1p1N2b1/2BKQ1rn b - - 0 1 illegal: Other
1br1Rq2/1NN2p1r/n4P2/3RR2r/K1Q1Q2R/2b1Nq1b/N2bp2B/k2Br3 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 hxg4 d3 c5 Ne2 d4 Ng1 Nc6 Ra5 Nb4 Ra1 Nd5 exd5 c4 Be3 cxd3 Bf4 Qc7 Bc1 Qd8 Kd2 Kd7 c4 Kd6 h4 Ke5 f4+ Ke4 b4 a5 d6 g5 f5 e5 d7 a4 c5 a3 c6 a2 h5 g3 b6 g4 b5 g2 f6 g3 c7 Ra6 b7 Rc6 b8N Bd6 b6 Qf8 d8N Ne7 b7 Bh3 c8Q Nd5 h6 Nc7 h7 Na6 Ne2 g1R Qe1 g2 Na3 Rc2+ Kd1 d2 Nc4 Kd3 Ne3 e4 Rb1 a1B Rb5 Be5 Rd5 Bc3 Ba3 Bf4 Bd6 Be5 Rh2 Rh1 Qg4 g1B Rg2 Bb4 Nc1+ Kc3 Re2 Kb2 Na2 Rc8 Bg2 Rh2 Bf3 Bc3 Qf4 Ka1 Kc2+ d1R Kb3 d3 Ka4 d2 Qg4 Rg8 h8R Rg5 Rh4 Rh5 Qf1 Rh7 Re1 Bg3 Qc4 Bf4 Re2 Re1 Qe6 Rh1 Be5 Bh6 Bh2 Bf2 Qe5 Bg3 Qed4 Bg5 Qdd3 d1Q+ Qc2 Nb4 Na6 Bb8 Nc7 Na6 Bg4 Rhf1 Bh5 Rf5 Bg4 Bh6 Bf3 Rh5 Bg4 Ba7 b8R Bf4 Rbb5 Bb8 Nb7 Qd3 Re5 Bg5 Re8 Qd1 Rd2 Qf3 Rbe5 Bf4 Rdd5 Bh6 Ng2 Bhd2 Q2d3 e3 Qde4 Qf5 Be2 Qf3 Bd1 e2 Ne3
R1R4B/2B1Kb1q/3BBR2/p4b2/P1b2b1q/NnN1rQRq/1k1qp3/1Qr5 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Bd3 Na6 Bc4 Nc7 Bf1 Ne6 Nh3 fxg4 Ng1 g3 Ba3 g4 Bc1 Ng5 hxg5 Qa5 Rh3 Qb6 Rh1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 a5 a4 h5 f3 e5+ Ke3 b5 f4 g2 f5 b4 c3 b3 f6 g3 f7 b2 g6 h4 g7 h3 c6 h2 c7 Nf6 g8R Nd7 Qf3 Bh6+ Qf4 Ba6 f8B Bc4 c8R Nc5 Ne2 Qh4 Ra3 Nb3 Bd6 Bg5 Rg6 Re8 Rf6 Ra7 Rg1 h1B Ra8 Rc8 Ra2 Rh7 Na3 b1B Rc2 Re7 Bb2 Qh7 Nc1 Rc5 Na2 Re8 Be2 Qh4 Bg4 Qh7 Rf1 g1Q+ Rff2 Qg2 Rf3 Qgh3 Be6+ Kc6 Ba1 g2 d5+ Kb6 Rg3 g1Q+ Rf2 Qd1 Rc2 Bf3 Rc1 Bh5 Rc2 Bce2 c4 Bf7 Nc3 Rcc8 Rc1 Bbd3 Rc2 Bg4 Bb2 Bf5 Rc1 Qdh5 Ba1 Q5h4 c5+ Kb7 c6+ Kb6 c7 Bc4 Be7 Bh6 d6 Kc5 Rc2 Kb4 d7+ Nc5 d8B Kb3 Bd6 Bg5 Kf2 e3+ Kf3 e2 Ke3 e4 Kd4 e1Q Ke5 e3 Qf3 e2 Bb2 Rb8 c8Q Qd2 B8c7 Rb6 Qcb7 Be3 Ncb5 Rc6 Rc1 Ka2 Bd4 Nb3 Nc3+ Kb2 Qb8 Bcd3 Kd5 Bf4 B4e5 Ra6 Qb6 Re7 Kc6 Re8 Kd7 Bc4 Qb8 Rc8 Ke7 Rb6 Bd4 Rc6 Qb4 Re8+ Kd7 Bg4 Nd1+ Ka2 Bd8 Bf5 Rfg6 Bb5 Bh8 Qd5 Rf6 Qd2 Qbe4 B5g6 Bf5 Re5 Be6 Bf5 Ke7 Rc3 Bb6 Re3 Rcc8 Rc5 Bd8 Rc1 Nc3+ Kb2 B8c7 Bc4 Qb1+
3r3Q/1rqpR2N/2N2p1r/6N1/b2R1PBR/4Q1bq/K2n1B1k/1R1q1rNq b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 g5 axb5 gxh4 e5 f6 e6 Nc6 Kd2 Ne5 Rh2 Nf7 Ke2 Qa5 exf7+ Kd8 Rh3 Kc7 Rh1 Qb6 Kd2 Kd6 Ke1 Qd8 Kd2 Ke5 b4 Kf4 c4 h5 g4 e5 b6 a5 g5 e4 Kc2+ e3 Kb3 d3 c5 h3 b5 d2 c6 e2 g6 e1R g7 h2 b7 a4+ Ka2 h4 b8Q+ Bd6 f8N h3 b6 a3 f3 Kg3 c7 Ba6 c8R Bb5 b7 Ne7 g8R+ Ng6 Qe2 d1Q Nd2 Qc7 Re8 Rh6 Nh7 Ba4 Rb1 Be5 Bg2 Rf1 Qe3 Bd6 Rh8 Ne5 Re7 Nc4 Bb2 Be5 Bd4 Bf4 Qe8 Rd8 b8N Be5 Nc6 Bd6 Nb3 Nd2 Nc5 Bf4 Ne6 Bd6 Ka1 a2 Neg5 Bf4 Kb2 a1R Qg8 Ra3 Bc5 Rc3 Ka2 Rb3 Qf8 Rb7 Rb4 Be5 Rd4 Re1 Bf1 Bd6 Bd3 Rf1 Bf5 Kg2 Bg4 Bg3 Ne2 Rf2 Rf1 h1Q f4 Kh2 Ng1 Qg2 Re1 Rf1 Ba7 Kh1 Bc5 h2 Qg8 Qh3 Qg7 Qf3 Rb1 Qd1 Bb4 Rg6 Nf8 Nb3 Be1 Nd2 Rh4 Rh6 Nfh7 Kg2 Qf8 h1Q Qh8 Kh2 Bf2
Q1N1QrrN/6bk/npKRqB1B/4q1r1/7p/1B1b1Q2/1P2Q1Bq/1r3q1R b - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 gxh4 a5 Nd7 a6 b6 Rh2 Nc5 Rh1 Nb7 axb7 Qf6 Nc3 Qd6 Nb1 Qd8 Kf2 h5 Kf3 a5 Ke4 f5+ Kd4 Kf7 b8Q Kg7 g4 c5+ Kc4 a4 Kb5 a3 e4 h3 d4 h4 e5 a2 g5 f3 g6 c4 e6 c3 d6 f2 d7 c2 d5 h2 d6 f4 e7 f3 e8Q Rh5+ Kc6 Rg5 Nd2 Nf6 Qde2 Ba6 Nh3 Qe7 d8Q Qe6 Qb7+ Nd7 Bg2 f1Q Nf4 f2 Ne4 Bd3 Qdc8 Kh6 g7 Nc5 g8B Bg7 Ng6 Na6 Nh8 Qe5 Bd5 Kh7 d7 Qe1 d8B f1R Be6 Rf8 Bb3 Qf1 Rb1 a1Q Bf6 Qa2 Nd6 Rb8 Bd2 Ra8 Rd1 c1R+ Bc2 Rb1 Bb3 Rg8 Qcg4 Rf8 Nc8 Rg8 Qgf3 Rb8 Rg1 h1Q Qa8 Qhh2 Rh1 Rf8 Ne7 Rd8 Nc8 Rg8 Qe6 Rdf8 Qe8 Rg3 Bh6 Rg5 Ba4 Qf7 Bb3 Qfe6+ Kb7 Bf5 Rd6 Bd3 Kc6
1B3r1k/4bR2/1KnNnp2/Q1N3r1/BR3bNr/7n/B1QpbP1N/1r1n1B2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra3 cxd4 Ra6 d3 Ra5 d4 Ra1 Qd5 exd5 Bg4 Bh6 Be6 Bc1 Bc8 Kd2 a5 g4 e5 c4 h5 b4 a4 c5 e4 d6 f6 g5 Kf7 g6+ Kg7 c6 h3 d7 h4 d8Q h2 c7 h3 b6 a3 b5 a2 b7 Rh5 b6 Nh6 Na3 Ra7 Qc2 Kh8 Rb1 a1N Nf3 Ra8 Nc4 Bg4 c8B Nc6 b8N Nf7 b7 Rg5 Qa5 Be7 Nd7 Rb8 Rg1 h1R Nde5 h2 Bd7 Rf8 b8N Bh5 Ng4 e3+ Kd1 d2 Ke2 d1N Kd3 e2 Na6 e1B Nc5 Nb3 Nd6 Bb4 Kc4 d3 Kb5 Nbd4+ Kb6 Bd2 Rb4 Bf4 Rg3 Ne6 g7+ Kh7 g8B+ Kh8 Bb2 d2 Be5 Rg1 Rg2 h1R Rg3 Rh4 Nfh2 Rg6 Rgb3 Nfg5 Rb1 Nh3 Be8 Na7 Ba4 Nc6 Ra1 Rg5 Ra3 Nc7 Ba2 Rh1 Nde4 Ne6 Bb8 Rg1 Rd3 Rh1 Rd7 Rg1 Nd6 Rh1 Ne5 Be2 Neg4 Nb2 Bg2 Rb1 Bf1 Nd1 Ndb7 Bed6 Rf7 Be7 Nd6
1N1BQ3/p2NKB1N/5r1r/2RR1r1Q/bNpp1R1n/1b4n1/P1b2k1n/1qR5 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 Bb7 c4 bxc4 g5 Bh6 g6 Bg5 hxg5 Bc8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 Kc5 Kg4 e4+ Kg3 b4 d5 b5 f5 b6 h5 b7 f3 e6 c3 g7 f4 e5 f2 g6 h4 e7 h3 e8Q c2 e6 d4 e7 f3 Nc3 h2 Qd3 Bd7 Na4 Nf6 g8N Nc6 b8N Ne5 g7 Rh6 Qh7 Ng6 Nh3 Nh4 Nb6 Nh5 Bg5 c1R+ Bc4 f1N Nf6 f2 g8R Ba4 Nf4 c6 Nb6d7 Qb6+ Kd6 Qb1 Qhg6 c5 Bf7 c4 Rf8 Bb3 Qf5 Rc3 Nd5 Rf3 Qg6 Rf5 Nb4 Kf3 Nh7 Nhg3 Rg1 h1B Bf6 Ke3 Qh5 Nh2 Rc1 f1B Ke6 Qc2 Rab1 Bd3 Rb2 Qb1 Rf2 Ne2 Rf4 Bc6 Rg8 Bca4 Rg5 Bdc2 Kd6 Ra5 Rd5 Rb5 Qf8 Ng3 e8R+ Be4 Ke7 Bec2 Rd8 Rb6 Bg5 Rbf6 Rc8 Rf5 Rcc5 Rhf6 Re4+ Kf2 Qe8 Rh6 N8c6 Rc8 Ncb8 Rcc6 Rg4 Rf3 Rf4 Rcf6 Kf8 Rf5 Bd8 Rff6 Ke7 Rf5 Re4 Rff6 Rg4 R3f5 Rf4+
1bNB2K1/4r1NQ/2BqRq1r/7Q/2QRbpP1/2p2nRb/3R1Q1p/1k1nq3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 a5 b6 f5 d6 f3 b7 a4 d5 h3 d7 h4 Ke6 a3 Kf7 f2 e5 a2 e6 h2 d6 h3 e7 c4 e8Q c3 Qd2 Kb3 Bg2 f1Q Ne2 Qa5 d8R Be7 d7 Rh6 Nf4 Bf6 Bc6 Qd5+ Ne6 Qdb5 Rg1 h1B Na3 h2 Ng7 Qbd3 Nb5 Qg3 Na7 Be5 Qf2 Ne7 Bg5 Nd5 Kg8 Ne3 Re1 a1Q Qh5 Ka2 Re2 Bf3 b4+ Kb1 b5 Nd1 b6 Bg2 Re3 Bf4 Re6 Bh3 Be7 Qgd3 Rg3 Qd6 Bh4 Be5 Bf6 f4 Bh4 Qe1 Be7 Na6 b8Q Nc5 b7 Nd3 Qc7 Qa6 b8Q+ Bb7 Nc8 Ra7 Bh4 Qb6 Bf6 Ba8 Bg5 Rb7 Qa7 Qbd4 Qa6 Ra7 Qc4 Bb7 Bb5 Be4 Bc6 Qb6 Rde8 Qa6 d8R Rb7 Qcf7 Re7 Qf5 Qb6 Qh7 Qbd4 Rd7 Qb6 Red8 Qa6 Rg6 Qf6 Rd4 Bb8 R8d6 Ne5 Rd8 Qd6 Re6 Nf3 Rd7 Rf7 Bd8 Re7 Re5 Qf6 Re6 Qb6 Rd2 Qc7 R7d3 Qd6 Rd4
q2bR2Q/2BBBK2/B2R4/R2p2qr/R5bp/2Pk1pNb/1q1nnQN1/2r5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kh5 Ke4 b4 a5 g4 d5 g6 f5 c3 a4 g5 h6 g7 d3 Kg6 d2 b6 f3 b5 a3 b7 a2 b6 f4 Ba3 h5 Rh4 f2 Qe1 d1B Kf7 Qd7+ Be7 Nc6 b8B Rh7 b7 Ra6 g6 Nd4 Bc7 Nb5 b8R Ra3 Rb6 Nf6 Rd6 Qg4 Nh3 Qg5 Nd2+ Ke3 Ne4 Nd4 Rg4 h4 Ng3 Rh5 g8B Ne4 g7 Nd2 Bh7 Rb3 g8Q Rb1 Qh8 Rc1 Bf5 Bg7 Bd7 Bf6 Bf8 Bd8 Be7 f3 Nf4 Ba4 Rb1 a1Q Rb5 Qb2 Ra5 N4b3 Qd1 Nd4 Qc2 Qb8 Qb2 Qa8 Qb6 Bc2 Qc5 Bf5 Qa7 Nb3 Ng2+ Kd2 e4 Ne2 e5 Kd3 e6 Nd2 Rga4 Bg4 Bf6 Bh3 e7 Bg4 e8R Bh3 Be7 Bg4 Ne3 Bh3 Bg2 f1Q Qb6 Qd1 Bf1 Qc2 Ng2 Qb2 Qf2 Kc2 Bb5 Bcg4 Ba6 Nd4 Bfb5 Ne2 Rc4 Kd3 Bd7 Qbb7 Rb4+ Qb5 Rc4 Qb2 Rca4+
1n4n1/Nr3q2/2rbqNbB/kPq1R1p1/1pQ2R1B/3p3B/R2RQ1Bn/4K3 b - - 0 1 illegal: No proof kernel
3Q1RB1/N1r3B1/1bq2b1r/1pnP2Qn/BBq1R1Rp/1k3K2/1r5p/3RNb2 b - - 0 1 illegal: No possible last move
q1N2Bn1/NR2r3/1q2Q3/prpbQBkb/1N2n3/1p2R2N/Pqn2RR1/7K b - - 0 1 illegal: No possible last move
q5Q1/4R1Rr/Bnb1K1p1/RB1pN3/1qQ1BN2/1p1RPr1n/6q1/rkB1b3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 Kf5 Kc4 a4 b5 h4 d6+ e6 b3 h6 b4 h7 f6 a5 b2 h5 d3 h6 d2 a6 b3 a7 Nd7 e7 g6+ Ke6 f5 e8R f4 Nh3 f3 Ra5 f2 Nf4 Ne7 Na3+ Kc3 e3 b1R Bb5 f1Q Qg4 d1Q Nc4 Nd5 Re7 Qde1 Ne5 Ra1 Rh2 Qh4 Rd2 Bb7 Rd4 Rb8 a8B Bc6 Rd2 Qg2 Rd3+ Kb4 c4 N7b6 c5 Rb7 Rd4+ Kc3 Rd3+ Kc2 Rg7 Rg8 h8Q Kb1 h7 Be7 Qe2 Rf8 Qg8 Qe1 h8R Bh4 Qg4 Qb4 Rhh7 Be1 Re7 Ra7 Rhg7 Rf7 Bb7 Qa8 Qe2 Nc3 B7a6 d5 Qg4 Ne2 Qh4 Bb7 c6 Ng1 c7 Bc6 c8B Rf5 Ne2 Rb7 Qc4 Rf3 Nf4 Rc7 Kf6 Nh3 Bf5 Rc8 Be4 Rf8+ Qf7 Rh8 Ke6 Rh7 Qg8
R3bNR1/BBBkQn1b/r1q1p2q/p1qpB1N1/6Qr/3Pb3/4K3/2Qn3Q b - - 0 1 illegal: No possible last move
2rnqk2/3B2P1/Bb1rp1qB/n7/2QQ2bR/K3QN2/B1pbQp1n/R5N1 b - - 0 1 illegal: No possible last move, all moves rejected
2R2rRn/N2n2p1/Q1N1rP2/2R3B1/q2r3n/p1b1pk2/BN2q1R1/KN2Q2b b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kd7 d4 Kd6 Kd2 a5 Kc2 e5 b4 c5 Kb2 e3 h4 g3 b6 a4 h5 e2 b7 e1N h6 g2 h7 c4 f5 e4 f6 Ra7 b5 Qe8 b6 Qf7 Nf3 g1Q Ra2 c3+ Ka1 a3 Ne5 c2 Bg5 c1R Bc4 e3 Rg2 Nc6 b8N Ra6 b7 Qf2 Nd3 Ne5 Rh5 Ne7 Nb2 N7g6 Nc6 Nd7 b8R Qe2 Na7 Nf3 Qe1 Rd1 Ba2 Bb7 Rc8 Rg8 h8Q Nfh4 Qh7 Nh8 Qd3 Rc6 Qa6 Qe8 Bh6 Be7 Re5 Bd8 Bg5 Ba5 Rf5 Bc3 Re5 Nb8 Rf5 Rf8 Re5 Kd7 d6 Rd3 Rd5 Ke6 d7 Rd6 d8R Nd7 Rb5+ Bd5 Ra5 Kf5 Rac5 Qe4 Re8 Re6 Red8 Qf4 Re8 Ke4 Red8 Bc6 d5 Rd1 d6 Kf3 Re8 Rd4 Red8 Ne5 d7 Qg4 Re8 Be4 d8N Nd7 Ndc6 Bd5 Qb6 Qe4 Red8 Q4c2 Re8 Qa4 Qa6 Rg8 Bh6 Ke4 Rg5 Kf4 Rf8 Bh1 Rg2+ Ke4 Bg5 Kf3 Rf7 Rd8 Rf8 Rde8 Rg8 Rd8 Bh6 Rf8 Bg5
K2n2R1/b2bqp2/4PB2/RB2k2p/N1Q1N3/Rrn2n1B/1qpq2Q1/r1B2R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 b4 a5 g4 h5 d4 a4 b6 a3 g5 a2 g6 c4 g7 c3 b7 c2 b5 f3 b6 h3 Nc3 h2 Nh3 f2 Na4 Qc7 Qd2 Rh7 Ng5 Be6 Bh3 Ne7 g8B Nc8 Rf1 Nd7 b8R h1N b7 Ra6 Ra8 Bg4 b8R Rh8 Bh7 Rc6 Ra5 Bh6 e3 Na7 Rg8 Rb6 Bg6 Ke7 d6+ Kf6 Kd5 Nc6 e4 Nde5 d7 Rb3 d8Q+ Qe7 Qc8 Nd8 Qc4 Nf3 Bf5 Bg7 Bd7 Ng3 Bb5 Ne2 e5+ Kf5 Ne4 Rh6 Rb1 a1Q Rb2 Qaa3 Ra2 Qb2 Ra3 Rd6+ Kc5 Nc3 d5 Ra6+ d6 Ra7 Kb6 Bh6 d7 Be3+ Qcd4 Ra8 Kc7 Ke6 Qb4 Ba7 Qg5 Bf5 Qg2 Bg4 Qc4+ Kf5 Rh1 f1Q Rg1 Qd1 Rf1 Nc6 Kb7 Qd2 Ka6 Kf4 d8B Bd7 e6 Ke5 Kb7 Qc5 Bg5 Qe7 Bh4 Nd8+ Kc7 Bc5 Bg5 Ra6 Kb8 Ba7+ Ka8 Rd6 Qg3+ Qf4 Qg2 Rd1 Bd2 Ra1 Bc1 Qd2 Bf6+
2R3qk/bR1Nnp1b/2p1nP2/1q1rBQ2/1Np1n3/2NQ1B1R/4N3/1Kb1rR2 b - - 0 1 legal: proof: d4 b5 h4 d5 c4 dxc4 a4 g5 axb5 e5 dxe5 gxh4 e4 a5 b4 h5 f4 c6 g4 h3 b6 a4 g5 a3 b5 a2 e6 h4 b7 h2 g6 h3 e5 Bb4+ Nc3 Kf8 f5 Kg7 e7 Qa5 Kd2 Qa7 Kc2 Qe3 e8Q Ba5 e6 Bb4 e7 Ra5 b6 Ba3 Qed7 Qg3 e8R Na6 b8R Ne7 b7 Nc7 Bf4 Ne6 Be2 Rd5 Bf3 Bc1 Nge2 Rg8 f6+ Kh8 Rd8 Re8 Qd3 Qg5 Rf1 h1Q Be5 h2 Qf5 Qhg1 g7+ Kg8 Rb1 a1B Rb3 h1N Kb1 Ng3 Qd6 Bd7 Rdc8 Ne4 Qa3 Qh5 Qd6 Qgg6 Ra3 Kh7 g8N Kh8 Rb3 Bab2 Qa3 Be3 Qd6 Bbc1 Ra3 Ra5 Qd3 Ba7 Rb3 Qg7 Ra3 Rd5 Rb3 Ng6 Ne7 Qg8 Ra3 Rd4 Ned5 Ne7 Nb4 Rd5 Rb3 N6g5 Qf4 Bf5 Ra3 Bh7 Qf5 Bb2 Ra8 Bc1 b8N Ne6 Nd7 Qh4 Rab8 Qf2 Ra8 Qc5 Rab8 Qb5 Rb7 Qg3 Ra2 Rg8 Rd1 Bg1 Nf4 Ba7 Rh2 Qg7 Rh3 Qf8 Ka2 Rg1 Nfe2 Qg8 Kb1 Rh1 Rf1 Rg1 Rf2 Re1 Rf1
1Q2R1rr/2B2p2/R1bn1k1P/1p2Q3/1N4B1/bK5p/r2R1NR1/rQ2qQnr b - - 0 1 illegal: No proof kernel
b2br2N/P1R3Q1/b2p4/pb3K1p/1kq1B1n1/1BQR3n/3B1b1R/1Nr2R1B b - - 0 1 illegal: No possible last move, all moves rejected
1r1n1RQr/N1n3R1/b1QN2nN/B7/K2B1b2/3pN1Br/p2p2P1/2k1nB1q b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 h5 Kc2 d5 Kb3 a5 b6 e5 c5 d3 c6 d4 b7 d2 c7 h3 Nf3 h4 Nh2 e4 Ka4 e3 b4 d3 b5 e2 b6 e1N Nc3 Qd6 Bb2 Bh6 Qc1 Nc6 b8N Ba6 c8N Nd8 b7 Ne7 Nc6 Ng6 N6a7 Rb8 Nd1+ Qe5 Nd6 Qc3 Nf3 h2 Ne5 h3 Ne3 Qc7 Bd4 Qh7 Rg1 h1N Qc6 h2 Rb1 Nf2 Nef7+ Ne5 Ra1 h1R Rc1 Bg5 Nh6 Rh3 Rh1 Ng4 Rc3 Ke7 f6+ Ke6 f7 Ng6 f8Q Nf6 Rg1 Ne8 Qg8+ Nf7 Rc5 Nc7 Re5+ Kf6 f5 Bf4 Re7+ Kg5 f6 Nd8 f7 Kh4 f8B Kg3 Kb3 Kf2 Rg7 a4+ Kb4 a3 Ka4 a2 Rh1 Rf3 Rh5 Rg3 Rf5 Rh3 Be7 Nc2 Rf8 Ke1 Nef5 Kd1 Ne3+ Kc1 Bef6 Nd5 Bb6 Nc7 Bfd4 Rg3 Ba5 Rf3 Nhg4 Qh1 Nh6 Rh3 Qe4 Rc8 b8B Ne1 Qc6+ Nc2 Qb3 Ne8 Nd1 Be3 Nc4 Ne1 Bg3 Bf4 Nde3 Nc7 Nd6+ Bc4 Qe4 Ba6 Qg8 Rb8 Qc6+
1nr2bNq/1Kn1Bb1n/3NrRrR/8/3P1kp1/1B3B1p/1BQ3pN/1N2rQ2 b - - 0 1 illegal: No proof kernel
3BQN1n/1RBQQ3/2B1KNrQ/p2nbp2/2b3qP/1k1B3r/1pRbb2n/8 b - - 0 1 illegal: No proof kernel
BB6/n2Rrr1B/qp2kr2/6bn/b1QnP2N/R3nRRp/B1pKNQ2/8 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 g4 c5 a4 h5 e4 f5 a5 f3 g6 c4 d6 f2+ Kd2 b6 g5 f4 a6 f3 a7 b3 d5 b2 g7 h4 g6 h3 Ra3 Rh7 Qa4+ Nc6 Nc3 b1R Nce2 Nf6 g8B Be7 g7 Nh5 Rh2 Rb8 a8B Rb7 Rg2 Bf6 Qc2 Na7 Rg3 Rh6 Bh7 c3+ Kd3 Rb5 g8Q Bg5 Bf4 Rf6 Qd2 c2 Qe3 Re6 Kd2 Re7 Qd4 Rb3 Qf8 Rc7 Qc4 Bb7 Qf6 Qc8 Qfd4 Bc6 Qdc5 Ke8 d7+ Kf7 d8R Ba4 d6+ Kf6 d7 Qa6 Rb8 Rb5 Qe3 Rf5 d8R Rf7 Qec5 Rce7 Rd5 Ke6 Rf8 R5f6 Qe3 Ng7 Bb8 Nf5 Nc1 Nd4 Bd3 Bc6 Nce2 f1N+ Kc3 f2 Nf3 Rg7 Nh4 Ba4 Qf3 Ne3 Kd2 Rfg6 Rf4 Rf6 Qg2 Ref7 Rff3 f1N+ Kc1 Nh2 Kd2 Nhg4 Qf2 Re7 Qa2 Rgf7 Bc4 Rh6 Qb3 Nf6 Qb4 Rg6 Ba2 Nh5 Qc4 Rgf6 Rd7+
b7/2b2NK1/Pk1pqR1p/2r3B1/bN2B2B/R1B1r1n1/1Q3rQp/QQn4b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 Kd2 b5 Ke3 e5 Ke4 b3 c4 h6 g4 b4 a4 d6 f4 Kd7 g5 Kc7 c6 b2 c5 h3 a5 b3 g6 h2 a6 Bb7 f6 Ne7 g7 Rh7 g8Q Qc8 f7 Rh8 f5 Nd5 f6 Nb6 Bg2 Ra7 Na3 b1B+ Nc2 b2 Bg5 Nd5 Nh3 Nd7 Kf5 e4 Kg6 e3 Be4 e2 Ra3 e1R Rf1 Ba2 Qb1 Ne3 Nb4 Be7 f8B Bb3 f7 Nf5 Bg7 Ng3 f8B Re3 Rf6 Bd8 Be7 Ba4 Bh4 Rh7 Ng5 Ba8 Nf7 Rb7 Qa1 b1B Bh8 Rb5 Bg7 Kb8 c7+ Ka7 c6 Nc5 Qb2 Qh3 c8Q Qe6 c7 Kb6 Bg5 Nd3 Qb7+ Ka5 c8Q Rc5 Qcb8 Nc1 Qh8 Bc7 Qd5 Bc2 Qd2 Bd1 Qg2 Bf3 Qb7 Re2 Qa1 Rf2 Qhb8 Rh8 Bd8 Rf8 Bh8 Re2 Kg7 Re3 Qgb2 Bh1 Qc6 Re5 Qcc2 Rf5 Qg2 Rd5 Qb7 Rc5 Qbb1 Qd5 Qgb2 Qe6 Qd5 Kb6 Qdd2 Bb5 Qg2 Ba4 Rg6 Bb5 Bh4 Rb3 Ng5 Bbc6 Kh7 Rf6 Nf7 Rff3 Bdg5 Rbe3 Bc3 Ba4 Rf6 Rf2 Kg7
N2Q1r2/b2b1n2/PRp1N3/2N1Rq2/k4nR1/4B2r/Nn1K1pBp/n3RQ1r b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 g4 b5 a4 f5 e4 h5 d6 Kc6 g6 f3 d7 f4 e5 h4 e6 h3 g7 b3 e7 f2+ Kd2 f3 e8R b4 a5 h2 a6 b2 g5 b3 g6 Ne7 g8R Nd5 g7 Qf6 d8Q Bd7 Re2 Kb5 Bg2 f1R Na3+ Ka4 Re5 f2 Ne2 c6 Rb1 Rh3 Nc4 Nf4 d5 Bc5 d6 Qf5 Rg1 Ba7 Nc3+ Kb4 Na2+ Ka4 Rge8 Re1 g8N Rf1 Bf3 Re1 Rg4 Rf1 Ra1 Rh1 Qf1 b1N+ Kd1 b2 Be3 Rh8 Bg2 Nd2 Rb1 Nb3 Nf6 Na1 Ne4 Rh6 Kd2 Rh3 Re1 b1N+ Kc1 Be6 d7 Nc3 Kd2 Nd1 Rb5 Nb2 Rb6 Bg8 Re5 Bd5 Qh8 Be6 d8N Bc8 Ne6 Nd7 Qd8 Rb8 Rc5 Ne5 Rd5 Nf7 Re5 Qg6 Rb7 Bd7 Nb6+ Kb3 Na8+ Ka4 Rb6 Qf5 Qf6 Re8 Qd8 Rf8 N4c5+
3b4/2QnpNB1/b4BRQ/QR3P2/1b3r2/qp3r1B/pNk1brB1/4Q1Kn b - - 0 1 illegal: No proof kernel
K2N1r1B/1p3kBQ/n1N5/2Nb3N/1b4rp/RP5q/1bR1Rrpn/1r1R3Q b - - 0 1 illegal: No possible last move, all moves rejected
B3K2N/1pr5/1k1Pp2B/1B1NRNNn/2n2R2/b1b2p1Q/bnQ3nr/2B3q1 b - - 0 1 illegal: No proof kernel
1K2Q3/3B3Q/r4N1Q/RpNb3n/1pNr4/QqPp2kq/1N1q4/B1bRqn2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Kf4 b5 a4 d5 h4 e6 c3 g6 a5 d3 h6 d2 h7 d4 a6 d3 h5 Bd7 a7 Qe8 h6 Na6 Qa4 d1Q Qa3 Qf7 Bh3 Qb3 Bb2 Qe7 Nd2 Qc2 Nc4 Qb3 Nf3 Nc5 Nfe5 Bc6 Rhd1 Ne4 f3 Rd8 a8Q Rd4 Qe8 Bd5 Ra2 Qd6 Ba1 Qd7 Nb2 Bg7 Nec4 e5+ Kg4 g5 f4 Nd2 Kg3 Ne7 Bg4 Rg8 h8Q e4 h7 e3 Bh3 Rf8 Qg8 e2 h8Q g4 Qh6+ Ng6 Qgh7 Rg8 Qd8+ Kf7 f6 Ke6 f7 Kf5 f8N Be5 Ne6 e1Q+ Kh2 Re8 Nc5 Re6 Qe8 Qe2+ Kg3 Ra6 Rh1 Bf6 Rc1 Bg5 Rd1 Kf6 f5 Be3 Q6g7+ Kg5 f6 Kf5 Qhh6 Nf4 f7 Qe6 f8N Nf1+ Kh4 Qh2 Nfd7 Bc1 Nf6 Nh5 Qhh7+ Kf4 Qhh6+ Kf3 Qgh7 Rf4 Kg5 g3 Kg6 g2 Kg5 Qe1 Bd7 Qh3 Kg6 Rg4+ Kf5 Qd2 Ke5 g1Q Q7g6 Kg3 Qgh7 Ra4 Kd6 Ra6+ Kc7 Rd4 Kb8 Qge3 Qa4 Qee1 Ra3 Qbc2 Qb3 Qb1 Ra5 Qbc2 Qa4 Qb3 Qa3
Qn1Nqq2/3k1BbN/q1n3Q1/p2NNq2/1p2B2Q/1P2Q3/br1RrpRK/8 b - - 0 1 illegal: No proof kernel
3R2K1/n1nBkN2/QB1Q2R1/p1P2BR1/bq6/1Rr2p2/1nqp4/1B1rnNb1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 d5 e4 f3 g4 d3 b4 d4 c4 f4 b6 h4 g6 h3 b5 f2 g5 d2 g7 d3 b7 f3 b6 h2 g6 Ke7 Nh3 Nf6 g8Q Kd7 g7 Na6 b8R Ke8 b7 Rh6 Ng5 Nd5 Qe6+ Qe7 g8B Rh5 Bh7 Rh4 Bf5 Rh5 Nf7 Nab4 Rg1 h1Q Rg5 Qg2 Bb2 Rh2 Bd4 Rh1 Bb6 Nc7 Ra3 Ra7 Rb3 Bh6 Qe2 d1N Nd2 Nb2 Ra8 Kf8 b8R Ra6 Rg6 Be3 Ra7 Qc5+ Kf6 Nc6 e5 Qb4 Qd6+ Ke8 Rab7 Na7 Kg7 Qh2 B1h3 f1N e6 Bg1 e7 Ne3 Kg8 Ng2 Nf1 Ne1 Bhg4 d2 Bb1 Qe5 Bgf5 Qe4 c5 Qc2 Nd8 Bd7 Ra8 Ba4 Nf7+ Nc8 Rbb8 Ra7 Qa6 Rb7 Nd8 Na7 Rc8 Nd5 Rc6 Rd7 Rg5 Nc7 Nf7+ Rd8 Qh2 Rb8 Rcg6 Rd8 Be4 Kd7+ e8B+ Ke7 Bf5 Rd3 Bed7 Rc3 Rd8 Ng2 Rg3 Bd4 Ne3 Rd1 R3g5 Ne1 Nf1 Bg1 Qd6#
2q1Q1B1/n4b1k/2n1NbrP/3rpB2/1Q1B3p/1Rp2K1R/qRb2N1R/3B1b2 b - - 0 1 illegal: No possible last move, all moves rejected
N1Q1rb1B/8/1Np2r2/4Q1qq/N3bP1q/3k1Q1p/Nq1n1pB1/1nQKRR2 b - - 0 1 illegal: No proof kernel
Q3k3/R1Q1N1bB/p1p1r1rB/Bn2RQb1/b6B/2p5/bqP5/Qn1K1N1q b - - 0 1 legal: proof: e4 b5 a4 d5 axb5 g5 h4 gxh4 Qe2 f5 Qc4 dxc4 exf5 Ba6 Ra5 Bb7 Ra1 Bc8 b4 h5 g4 e5 d4 h3 f4 h4 d5 c6 d6 e4 f6 h2 d7+ Kf7 b6 h3 b5 e3 f5 c3 g5 e2 b7 Qc7 d8B Qd6 b6 Qc5 g6+ Ke8 f7+ Kd7 g7 Qb4 f6 Qf4 Nf3 Na6 b8Q Qb4 b7 Nc7 Nh4 Nb5 Bg5 Rh6 Nf5 Rg6 Bh4 Qb2 Ne7 a6 Nd2 Ra7 Ra5 Ra8 Rg1 h1B Qa7 Rb8 Qa8 Bd5 Bg2 h2 Nf1 h1Q Be4 Bb3 Rg4 Nd4 Re5 Ba4 Ba5 Nb5 Rg2 Rg3 Bh7 Rg6 Qa7 Ra8 Qg1 Ra7 b8Q Rc7 Kf2 e1B+ Ke2 Bd2 Kd1 Bg5 Qb7 Kd8 Rge2 Be6 Re1 Nh6 g8Q Nf5 Qg7 Ba2 Qa8+ Kd7 R1e4 Nfd6 Rb4 Na3 Rb7 Nb1 Ra7 Qe4 Qh1 Nb5 Qg1 Be3 Qh1 Rg1 Qg3 Bg7 f8Q Bg5 f7 Rg2 Qf4 Re2 Qg1 Qh1 Qfb8 Re3 f8B Re4 Rf5 Re6 Re5 Rg6 Qf5+ Re6 Nc8 Ke8 Ne7+ Rc8 Qc7 B7f6 Bh6 Bg7 Ke2 Rd8 Nc8 Rd2+ Ke1 Rg2 Kd1 Bd8 Ne7 Rgg6 Nc8 Bdf6 Ne7+ Kf7 Qe3 N1a3 Qab7 Ke8 Qc1 Bg5 Qa1 Nb1 Qa8#
7r/1b3n1p/BQ1NKnRb/3Q2B1/1pbpB3/qR3b2/NQ2P1kr/2B1q1Q1 b - - 0 1 illegal: No proof kernel
1B3rQ1/b1KNR1P1/1n2Qq2/2B2Br1/2R2nR1/1r1qp3/bR1p1p1r/k4NB1 b - - 0 1 illegal: No proof kernel
7q/K2Bnp2/pQ3n2/2r2qB1/QQ1B2Qp/q2r2RP/R1Nb4/N1kq2Bb b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 d4 Ke6 g4 Kd5 c4+ Ke6 d5+ Ke5 c6 h5 g5 f3 Ke3 h4 c7 a6 h3 e6 g6 f2 d6 Qe8 d7 Nh6 d8B Ra7 b6 Rb7 c5 Nc6 g7 Ra7 g8Q Rb7 Na3 Nd4 c6 Bb4 Bb5 f1Q Ne2 Qf5 Qg4 Ng8 Nc2 Rh5 Bg5 Nf6 Ra2 Qh8 Bb2 Rb8 Qd2 Bb7 Nc1 Rd8 c8Q Bc3 c7 Nc6 Qb8 Ne7 Rg1 Rd3+ Ke2 e3 c8Q+ Kd5 Qa4 e5 Rg3 e4 Nb3 Ba5 Qe1 Bd2 Bd7 Bc6 Nba1 Kc5 Nb4 Kc4 Qg8 Ba8 Bd4 Bd5 b7 Bc6 Kd1 e2+ Kc2 e3 Qbd8 Be4 b8B Bh1 Qb1 e1Q Bba7 e2 Qb6 Qef1 Kb2 e1Q Nbc2+ Bb4 Qg7 Qd1 Qg6 Qc5 Qe4 Qff5 Qg4 Rf3 Bg1+ Kd3 Kb3 Bd2 Qbb4 Qe3 Bd4 Ke2+ Kc4 Qa3 Qf4 Rd3 Qb6 Be3 Qg4+ Kd2 Q1b3 Kc1 Q3b4 Qfh7 Kc5 Bd2 Qd6 Qg6 Kb6 Qf5 Ka7 Qg6 Bf4 Rc5 Bg5 Qf5 Qdb6
2Rn3K/2q1P2R/1r1bkQ1p/8/1bRRB2q/B2Nb1NB/3pQp1B/3rnb2 b - - 0 1 illegal: No possible last move
nn1BQ1Nq/Rn1p1P1R/1b2bR2/2R5/1qNKQn1N/pr2r1k1/5Np1/3B4 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 c4 Ke5 f4+ Kf6 h4 g5 b4 a5 c5 e5 c6 g3 h5 g4 c7 a4 h6 g2 b6 g3 b5 Ne7 b7 Ra5 h7 Nec6 b6 Bc5 Qg4 Re8 h8N Rb5 Be2 Na5 Nh3 g1N Nf2 g2 Rh7 Nh3 Bd1 Rb3+ Ke4 d3 Nd2 Re6 Nc4 d2 Ng6 Qh8 Nh4 Re8 Kd5 e4 Qf3 e3 Qe4 e2 Ra3 Na6 b8R e1Q b7 Bb6 Ra8 Re7 b8Q Nb7 Ra7 Re8 Ra2 a3 Rc2 Re7 Qa8 Nb8 Rc3 Nd6 Bb2 Ba6 c8N Nb7 Bc1 Re6 Ne7 Bb5 Na5 Be2 Rc5 Bc4+ Kd4 Re5 Bb2 Bd5 Nc4 Be6 Qf3 Ree3 Qe4 Na6 Qe8 Nb8 Bg4 d1N Bh5 Nc3 Bd1 Nd5 Bc3 Bc7 Ba5 Qb4 Bb6 Bd6 Bd8 Nc7 Rh5 Na8 Ng8+ Kg7 Rh6 Bc7 Rh5 Qh7 Rh6 Bb6 f6+ Kh8 f7 Kg7 f8R Qh8 f5 Nf4 Rhf6 Kh7 Ne7 Kg7 R6f7+ Kh6+ f6 Bf5 Rh7+ Kg5 Ke5 Bg4 Ng8 Be6 Kd4+ Nd5 Qc2 Kf4 Qe4+ Kg3 Rff7 Bg4 Rfg7 Nf4 f7 Re2 Rh6 Re1 Rf6 Ree3 Rh7 Bh3 Rh5 Be6 Rh7
B1rBr3/B4Rbn/QpQK4/4NQ2/3BR1qp/n1rqnp2/2Q2P2/1kN3q1 b - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b6 d4 Kd7 h4 gxh4 e5 Bb7 d6 Ke6 d5+ Kf5 b3 a5 b4 Bc8 e6 Bd7 exd7 axb4 Rh2 Kg6 Rh1 Kf6 Ke2 Ke5 Kf3 c5 g4 f5 a4 h5 g5 b3 a5 h3 a6 f4 a7 e6 g6 b2 g7 c4 Nc3 b1N Qc2 Kd4 Bg2 e5 Na2 h4 Bb2+ c3 Nc1 Nh6 g8Q h2 Qgh7 Bg7 Qhf5 Re8 Ra3 Qc8 d8B Ng4 d7 Ne3 d6 Qa6 Ra5 Na3 Bc7 Qd3 d8Q Nd7 Bb8 Nf6 d7 Nh7 Qdf6 Kc4 d8B Kb4 Qe2 c2 Bd4 Kc4 Qc6+ Kb4 Bc5+ Kc3 Qd1 Kb2 Bd4+ Kb1 Qe2 Qb3 Ke4 Qa4 Nf3 Qb5 Rf1 h1Q Qd3 Qh3 Re1 Qg4 Qe2 Qb3 Rd5 Qc3 Rd7 Qc4 Rf7 Qd5+ Kd3 e4+ Kc3 Qb5 Ne5 Qd3+ Kb4 Nd1 Qd2 e3 Be4 f3 Qdc3 Nc4 Kb5 e2 Qb3+ Ndb2 Qa4 Nd1 Qa6 Nde3 Qcg6 Qb3+ Kc6 Na3 Kd6 Qc4 Bbc7 Rc8 a8Q Qc3 Bb8 Qd3 Ba7 Rc3 Qd5 Rc8 Qde6 Rc3 Ba8 Rc8 Rh1 e1Q Qd7 Qef1 Qc6 Qfg2 Re1 Qg1 Nb3+ c1R Re2 Rc3 Nc1 Nd1 Re4 Ne3 Qge6 Kb2 Qec4 Kc2 Q4a4+ Kb1 Qc2+
2Q4r/4N1N1/1q3nR1/p2RN2B/kn5q/P1NRp2q/bKpbQR2/1bB1n3 b - - 0 1 legal: proof: e4 b5 c4 bxc4 f4 a5 g4 g5 fxg5 d5 h4 dxe4 h5 Na6 g6 Nb8 g5 Ra6 g7 Rg6 hxg6 Qd3 Nh3 Qd6 Ng1 Qd8 b4 Kd7 d4 Kc6 Kd2 Kb5 Kc3 c5 a3 e5 d5 h5 d6 f5 d7 h4 Bd2 e3 Bh3 e2 Qf1 e1N Kb2 f4 Qe2 f3 Bc1 e4 Rh2 e3 Rf2 Nc6 Bg4 h3 Bh5 Qb6 d8R h2 Rd5 Nf6 g8N h1B g7 Ka4 g6 Be6 b5 Nb4 Nh6 Bg2 g8Q Bgh3 g7 Bhf5 Ra2 Bf7 Rg2 f2 Nf3 f1Q Rg6 Qh3 Ne5 Bc2 Nf5 c3+ Ka1 Be7 Qc8 c4 g8N Be4 Ng7 c2 Rd3 c3 Rb2 Bc5 Ne7 Ba2 Rd5 Qbe6 b6 Qh4 b7 Qeh3 Bd2 c1Q b8R Qd1 Rb6 Qb3 Bc1 Bf5 Rd3 Qe6 Rb5 Qb6 Rd8 Bc2 Rd3 Bd4 Rd5 Bc5 Nd2 Bcb1 Ne4 Bd6 Rbd2 c2 Kb2 Nf3 Nc4 Bg3 Ne5 Be1 Rd1 Bd2 Rf1 Ne1 Rf3 Rf8 Rf2 Rh8 Nc3+
2B1qQ2/B1p1p3/N1R1B3/1k6/Qp2n1b1/nR2PnbN/b1NNKB2/1r4qq b - - 0 1 illegal: No possible last move
q1r5/1n1q2R1/4p1R1/2N1b1n1/BqrBrRp1/2k1BnNB/QR2Pp1Q/7K b - - 0 1 illegal: No possible last move
1Rn1Q2n/4B1n1/q4pQ1/1B1N1Q1n/BnK1pP2/1R5p/1bb3N1/1rQ1Bkb1 b - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 b5 axb5 g5 Ke2 gxh4 Ke1 Ra6 Qd3 Rd6 Qd2 cxd4 Qd1 d3 Bf4 d4 Bc1 Rd5 exd5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kd7 c4 Kd6 b4 Ke5 f4+ Ke4 g4 e5 c5 h5 d6 h3 d7 h4 g5 a4 b6 a3 c6 f6 c7 h2 g6 a2 g7 h3 b5 Nh6 g8B Na6 b7 Bc5 b8B Nb4 b6 Nf7 Ne2 Kf3 b7 Kf2 Rg1 h1N Nbc3 Ng3 Rb1 a1B Nd5 Bb2 Ne3 Nh5 Nc3 Qf8 d8Q Bf5 c8Q Qd6 Ba7 Qa6 b8Q Rh7 Rg7 Nh8 Rg3 Rb7 Qe8 Rb5 Ng2 Kg1 Ke1 d2+ Ke2 Bc2 Nd5 e4 Qg6 Bb6 Rb3 Bc5 Qe1 d1N Qcf5 d3+ Kd2 Nc3 Qbe8 Na4 Be6 Rb7 Bd7 Nb6 Ba4 Nc8 Bb6 Rb8 Bd8 Ba7 Qd1 Rb6 Ke3 d2 Qe1 d1N+ Kd2 Rb8 Be7 Ne3 Qd1 Ba3 Kc3 Rb6 Kd4 Bb2+ Kc5 Kf2 Bd2 Kg1 Qc1 Kf2 Qe6 Nf5 Bfb5 Nfg7 Kc4 Ke2 Be1 Kf1 Qe5 Rb8 Qe6 Bg1 Qef5 Ra8 Nc7 Qa7 Bd7 Na6 Rd3 Ba1 Rb8 Nb4 Bac6 Bb2 Rb3 Qb7 Nd5 Ra1 Ba4 Rb1 Bdc6 Qa6+ Bcb5
B6b/rpbK1B1p/n3N2Q/Rp1Q1kNr/r2B3P/2Nb4/2N2rr1/2qR2B1 b - - 0 1 legal: proof: f4 f5 g4 d5 c4 e5 cxd5 a6 b4 Nd7 b5 axb5 Qb3 Nb8 Qc2 Nc6 Qd1 Nce7 Nc3 exf4 Nb1 f3 Nc3 f4 Nb1 Nf5 gxf5 Ra6 Nh3 Ra7 Ng1 Ra8 Kf2 Kd7 e4 g5 h4 c5 a4 g4 d4 c4 a5 c3 a6 c2 d6 Bh6 f6 Ke6 a7 Bg5 d5+ Ke5 f7 Qd7 f8Q Qf7 d7 Nh6 d8B Qe8 d6 Qc6 d7 Nf5 Ra5 Ng3 Bb6 Bf6 d8N Bf5 Bce3 c1B Nh3 Bb2 Qb3 Qc1 Ne6 Bd8 Qh6 Bc7 Nd4 Rhg8 Rg1 Rg5 Bc4 Rh5 Nc2 Bg6 Re1 Kf6 e5+ Kf5 e6 Bh8 e7 Ne4+ Kf1 f2 Kg2 f1R e8N g3 Bed4 Rg1+ Kf3 g2 Rd1 Nc5 Ng5 Na6 Nc3 Re1 Bg1 Re4 Bf7 Ra4 Bgd4 g1R Qd5+ Bce5 Nc7 Rg2 Qc4 Bd6 Nce6 Bc7 Bg1 Ke5 Qb3 Bd3 Bbd4+ Kf5 Ne1 Rga2 Nc2 Rg8 a8B Rg6 Kg2 f3+ Kh3 f2 Qc4 f1R Qc6 Rf2 Qg2 Bce5 Qd5 Kf6 Bb6 Bf4 Kg4 Bc7+ Bd4+ Be5 Ng7 Rc4 Ra4 Nb4 Ra3 Rc6 Ra6 Ra4 Ra5 Ra6 Ne6 Rd2 Kf3 Kf5 Nh3 Rgg2 Nhg5 Ra7 Ke3 Na6 Kf3 Bf1 Ke3 Kg4 Ke4 Bc7 Qc5 Rde2+ Kd5 Ref2 Qd6 Kf5 Qd8 Bb6 Kd6 Bd3 Qd7 Bd8 Qc6 Bb6 Kd7 Bc7 Qd5+
1k3K2/3pQpnq/RrNB4/R1R4b/2N1BQb1/2r2P2/rrB1pR2/1r2b2B b - - 0 1 illegal: No possible last move
1Bb3n1/2N4B/2rq4/QBR2q1p/q2Q2rn/p1KRN1pP/q3r2B/2kNN3 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 e4 Ke7 c4 Ke6 b4 h5 f5+ Ke5 b6 Kf4 h3 g5 b5 d5 b7 a5 f6 d3 e5 a4 f7 d4 f8N a3 b6 g4 c5 Qg5 c6 Rh6 c7 Ra5 e6 Qg7 e7 Ra4 e8N Re6 Nf6 Rc6 Nc3 Nd7 b8Q Qf7 b7 Ne5 Qa8 Ng6 b8B Nh4 Qa5 Qa2+ Bb2 Rac4 Rc1 g3 Ng4 Ra4 Ne3 Rac4 Be2 f1Q Rh2 f2 Nf3 Rb4 Qda4 Rbc4 Ncd1 Rb4 Rc5 Ke4 Kc1 d2+ Kc2 d3+ Kc3 Rd4 Ne1 Kf4 Ba1 Ke4 Nb2 d1Q Ne6 d2 Bb5 Qg4 Q4b4 d1Q Qc4 Qa4 Nbd1 Qf4 Qcb4 Qd6 Qb2 Ba6 c8B Rd2 Nc7 Re2 Qd2 Kf4 Bf5 Bc8 N1c2 Kf3 Bh7 Kf4 Qd4+ Kf3 Nb2 Qfb1 Nbd1 f1R Nb4 Qf5 Nd3 Ref2 Rg2 Ke2 Rg1 Re1 Rf1 Rf4 Rf3 Rg4 Bb2 Rf1 Bc1 Rf2 Bd2 Qae6 Be1 Rh2 Bf2 Qa2 Bg1 Q4c2+ Kb4 Kd2 Ne1+ Kc1 Ncd5 Bb7 Nc7 Re2 Bh2 Bc8 Nf1 Kb1 Rd3 Qa4+ Kc3 Kc1 Nfe3
Q2N3k/n1B3p1/q1n1B2N/5q1p/1r1bR1pQ/3R2bn/1R2R2P/1B1Bbb1K b - - 0 1 legal: proof: c4 b5 e4 d5 d4 dxc4 b4 f5 g4 fxg4 d5 a5 bxa5 Ra6 e5 Rd6 exd6 Bf5 Kd2 Be6 Ke1 Bc8 a4 Kf7 f4 e5 Kf2 c5 Kg2 h5 d7 b4 d6 e4 f5 e3 f6 c3 a6 e2 a7 e1Q a8B b3 a5 b2 a6 c4 a7 c2 Bf4 c1B Ra2 c3 Bd5+ Qe6 a8B c2 Nf3 Ba6 Na3 b1N Nh4 Qc8 d8R Qd7 Bd3 Bb7 Nc4 Be3 Na5 c1B Re1 Bg1 Rb2 Ne7 Qa4 Kg8 Nc6 Nc8 Kh1 Na7 Re4 Ba6 Nf5 Nd2 Bb1 Bf1 f7+ Kh7 Qa2 Nf3 Nh6 Ng5 Qa1 Qf6 Be6 Bd4 Qa2 Be7 f8R Bd2 Rfe8 Nh3 Qa1 Qc8 d7 Qa6 Bc7 Be1 Qa3 Qf4 Qg3 Qf5 Qh4 Bd6 Bb7 Qa4 Ba6 B6e5 Be2 Qa6 Bd1 B5g3 Rc8 Bf4 d8Q Bfg3 Qd5 Rf8 Nd8 Kh8 Qa8 Nbc6 Rcb8 Rg8 R8b3 Rf8 Re7 Re8 Rd3 Rg8 Nb7 Rb8 Nd8 Rb4 Rf7 Qg5 Rff2 Qf5 Rfe2
1b4q1/p1QK1Bp1/1B2R2n/2R4R/k5P1/qnNNpb1N/1r1NQ3/1q1n1q1R b - - 0 1 illegal: No proof kernel
r1nB1N1n/2Q1pnnq/3B3b/1p1Q4/1PR2Bnn/1kpr4/1R3RB1/4NR1K b - - 0 1 legal: proof: e4 d5 a4 f5 h4 fxe4 c4 g5 cxd5 gxh4 a5 b6 a6 Bb7 axb7 Bg7 Ke2 Bh6 Ke1 Bf8 b4 Kf7 f4 c5 Kf2 a5 g4 h5 Kg2 a4 d4 b5 g5 a3 d6 Ke6 g6 Kd5 f5 e3 d7 a2 g7 c4 f6 c3 f7 h3+ Kh2 e2 Ba3 Kc4 d5 h4 d6 Nh6 g8Q Nc6 b8R Ne5 Qg7 Ng6 Bg2 e1N Qc1 Kb3 Qd4 Rg8 Qb6 Nh8 Qd2 Rg3 Rc8 Re3 Qdd4 Rd3 Ne2 Bg7 Qa7 Qg8 f8R Qh7 Rf2 N6f7 Nf4 Bf8 Rc4 Bh6 Bc6 Ng2 Ne6 Ne3 Bd5 Nf5 Bc1 Ng7 Kg1 h2+ Kg2 Qf5 Rhf1 h1N Qc7 Qh7 Bf4 Ng3 Nf8 Ne4 Qcc5 Nh5 Na3 Ng7 Rad1 a1N Rdd2 Nc2 Qc8 Re3 Qc7 Rd3 Kg1 Ne3 Nc2 h3 Ne1 Ng4 Rb2+ Ka3 Kh1 h2 Kg2 h1N Kg1 Nef6 Bg2 Ng3 Qd5 N3f5 Kh1 Ne4 d8B Rc8 d7 Ra8 Qcb7 Nh4 Bdc7 Ned6 d8B Nc8 Bcd6 Ka4 Qc7 Ka3 Rbe2 Kb3 Rb2+
2b1KBQ1/1NN1p1R1/1r2Q1r1/n7/nkBQ1prp/6BB/2Q1qn1P/2nrR3 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 Ra5 gxf4 Ra3 Bb7 Ra1 Bc8 e3 d5 Bd2 d3 Ra4 d4 Kf2 Bg7 Bc1 d2 Ra6 d3 Ra1 Bd4 exd4 Qd6 Qe1 Qd5 Qd1 Qd8 Kf3 Kd7 Kg4 Kd6+ Kh5 f5 g4 a5 c4 f3 b4 f2 b6 a4 b7 a3 b5 h6 Kg6 a2 Kf7 h5 g5 h4 g6 Rh5 c5+ Kd5 c6 Kc4 d5 Rh7+ g7 Kc5 b6 Kb5 c7 Rh5 d6 Bd7 c8Q Ra5 Ne2 Rh6 Rg1 Rg6 Nd4+ Kb4 Nb5 Nf6 g8B Ra8 Nc7 Ng4 Na3 Nc6 b8B Na5 b7 Ra6 Nab5 Rb6 Bh3 f1R Qc2 d1R Bh6 d2 Bf8 Nf2 Rc1 a1N Rg3 Rh6 Rg7 Rg1 Rb1+ N1b3 Ra1 Bc6 d7 Rhg6 Nd6 R1g4 Rb1 Rdg1 Re1 d1N Ba7 f4 b8Q Nc3 Nb7 Nc1 Qa8 Rb5 Bd4 Bh1 Qa6 Bd5+ Qe6 Na4 Qa8 Qb8 d8Q Rb6 Ke8 Qa7 Be3 Qa6 Bd4 Qe2 Be3 Nd1 Bf2 Bg2 Bg3 Nf2 Qdd3 Be4 Qad8 Bf5 Q3d4+ Ka3 Qee4 Bc8 Bc4 Kb4 Qe6 Qd3 Re2 Rd1 Re1 Qe2 Q8d5 Ka3 Qg8 Kb4 Qde6
r4Q2/1BN3Rr/6Rb/3np2p/nk1BNN2/2qpPQQK/4prNn/2b1Q3 b - - 0 1 illegal: No proof kernel
2R2Rq1/2Q2b1p/B2Kn2n/3N1BPp/bn2p3/2B2Bp1/kbQ4r/2rR1RN1 b - - 0 1 illegal: No proof kernel
Rb1N1N2/2rQbKN1/3Nn1Q1/kr2PpRp/1p5p/3q4/b1q3BQ/2Q1Bn2 b - - 0 1 illegal: No possible last move, all moves rejected
3n3R/rk6/1bqQP1BN/3q1nBQ/p4rb1/rB1B2pp/5QpR/1Q2KN2 b - - 0 1 illegal: No proof kernel
q2B3r/6p1/n1Qr1RQ1/q2NkpKB/2pb4/n1P2R2/2QR1N1p/2bb2QR b - - 0 1 illegal: No proof kernel
1B1bB1r1/4npP1/nq3np1/2Q2rpQ/1BR2Rqk/K5NN/7p/RB1b1R2 b - - 0 1 illegal: No possible last move, all moves rejected
r2R1N1B/BQprn1R1/R1R3q1/5P1N/p2q2Bn/Kp6/1nQ2pBb/1bk5 b - - 0 1 illegal: No possible last move, all moves rejected
3R4/2pQ1Rr1/4Q3/KPn2r1n/B2pp3/qqp1b3/3bBBNN/kBRb3R b - - 0 1 illegal: No proof kernel
Q5NB/4n3/2Np1p1b/pBNB3R/5k1n/K4P1N/1npr1r2/RqQ1nb1B b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 Nf6 cxd5 Ng8 d6 Bb7 Ra2 Ba6 Ra1 Bc8 h4 g5 d4 gxh4 d5 Bh6 d7+ Kf8 d6 exd6 Nc3 Ke7 Nb1 Bf8 Kd2 Ke6 Kc2 Ke5 Kb3 a5 e4 c5 g4 h5 b6 c4+ Ka3 h3 b4 c3 b7 h4 b5 c2 b6 h2 g5 h3 g6 Ra7 g7 Qg5 d8Q Rh5 Bb2+ Kf4 e5 Ne7 g8B Ng6 e6 Nh4 e7 Qb5 e8B Rd5 Nd2 Bh6 Ne4 Nc6 b8N Ne7 b7 Rd2 Bh8 Qb1 Nc6 f6 b8N Ba6 Bg2 Bf1 Qc1 Rb7 Ra2 Rb4 Nc5 Re4 f3 Re2 Ra1 Rf2 Ne2+ Kf5 Bd5 Kg5 Rg1 h1N Nf4 h2 Nh3+ Kf5 Ng5 Kf4 Qc8 Ng3 Rh1 Ne2 Qd8 Nc3 Nh3+ Kg3 Qc8 Na4 Qa6 Nb2 Qa8 Na4 Nb4 Nb2 Bb5 Bd3 N8c6 Bc4 Re1 h1N Re5 Bf1 Rh5 Rfe2 Ba6 Nf2 Bh1 Nfd3 Bac4 Ne1 Bb5 Nc8 Ne7 Rf2 Ng8 Ne7 Ng1 Kf4 Nc6 Bg2 Qe8 Bh3 Qa8 Bf1 Nh3+
q1n3b1/bN2nBQp/1kp1bR1B/3N3r/4bKB1/B1Q1ppP1/1r5R/3Q2Q1 b - - 0 1 illegal: No proof kernel
q1q5/R1B4k/1n1b3p/1BN1p2q/Q2p1R1P/2pKR3/NQrN2b1/1R1b2rN b - - 0 1 illegal: No proof kernel
q2N1BK1/1Qq3n1/1rRpp1B1/3R1b1R/3rPnn1/2Bp1pkB/qQ5R/1N6 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 a4 cxd4 axb5 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 h4 e4 f3 c4 f4 b4 f2 b6 f3 g7 Kf7 c5 Kg6 b5 Kh5 g6 Kg4 c6 h3 c7 e6 b7 a4 b6 d3 Rh2 a3 Qd2 a2 Bb2 Kg3 Bc3 Nf6 g8B Nd5 g7 Na6 b8B Nf4 b7 Rh5+ Kd6 Rb5 Bf7 Rb6+ Ke5 Qf8 Kf6 Qh8 Bg2 f1N Bg6 Ne3 Kf7 Ng4 g8R Qe5 Qb2 d6 Rh8 Qa5 Ba7 Bd7 b8Q Be8+ Kg8 Qa4 c8R Nc7 Qb7 Qa5 Rh1 h2 Bh3 Rb8 Rh7 Rb4 Bc5 Qa8 Be3 Rd4 Rh5 Bf7+ Kf8 Ne8 Rc6 Bg8 Rd5 Bh7 Ne2+ Kh4 Bed2 Ng7+ Kf7 Nfh5 Bh6 Nf4 Rc1 h1Q Rc2 Qc1 Rd2 Rb4 Nd4 Kg3 Rh2 Rc4 Qc7 Rb6 Qb7 Nf5 Bf8 Ng7 Nd2 Qc2 Rah1 a1Q Nb1 Q1a2 Rc7 Rc5 Nc6 Rc4 Nd8 Rd4 Rc6 Qc1 Bh5 Bf5 Kg8 Qc2 Bf7 Qca4 Bg6 Q4a5 Bf1 Qc5 Rh5 Qca5 Bh3 Q5a7 Rh2 Q7b8 Bf7 Qc7 Bg6
1Q5R/pQq1B3/2q1nr2/2Qk1NpQ/1RN5/1p1Br2r/2q3Pp/Bbb1B2K b - - 0 1 illegal: No proof kernel
2r1k2B/1Np3Bp/nNr1nN2/pQ2K2p/1n2b3/2Pb2Qr/1b2B2B/R3NR2 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 d5 axb5 d4 e3 g6 h5 e4 Ra6 Qd6 Ra1 Qe5 fxe5 dxe3 Ra6 gxh5 Ra5 Bc5 Ra1 Bf8 Ke2 a5 b4 f5 d4 f4 g4 Ra7 b6 Ba6+ b5 Kd7 g5 Nc6 e6+ Ke7 g6 Nf6 c3 Bh6 g7 Bb7 g8N+ Kf8 e7+ Kf7 e8N Bf8 d5 Bc5 d6 Ba6 b7 Kf8 b8B Ba3 d7 Kf7 d8B Nd5 Nd2 Ncb4 Ngf3 Bb2 Nd6+ Kf8 Nb7 Ke8 Nc4 Ra8 b6 Ra7 Nc5 Bb7 Qd3 Na6 Bf6 Ndb4 Ne1 Bd5 b7 f3+ Kd1 f2 Ke2 Ra8 Ba7 Rd8 Rg1 Rd6 Bg7 Rh6 Nb6 Rc6 Kd1 e2+ Kd2 Rh6 Ke3 Rc6 Kd4 e3 Ke5 Be4 Nf3 e1N Be2 Nec2 Rf1 Nd4 Ne1 Ne6 b8Q+ Kf7 Nf6 Rc8 Nb7 Ke7 Bd1 e2 Bf4 Kf7 Qg3 Ke7 Nd3 e1R Be2 Rd1 Ne1 Rd3 Na4 Kf7 Bd4 Rf3 Nb6 Ke7 Qg2 Rh3 Bh2 Kf7 Qg3 Ke7 Rh1 f1B Bh8 Bfg2 Rf1 Bd3 Bc5+ Kf7 Bf8 Bge4 Bfg7 Rf8 Qd8 Re8 Qd6 Rc8 Qd5 Ke7 Qb5 Kf7 Ng4+ Ke8 Nf6+
3BNbRQ/2Q5/3nb1p1/2b1p2n/Bk1B2rp/1qBK1NRP/1p6/n1bQ1Q2 b - - 0 1 illegal: No possible last move, all moves rejected
2B1N2Q/p2R4/krRKN3/1N1ppp1b/b3NR2/P7/1qRbnQ1q/b1r3B1 b - - 0 1 illegal: No proof kernel
1kbnn3/2Q1Q1Q1/2R3p1/N6R/B2rQ1r1/1Pp2Kbp/1B2pRp1/1N1R1r1q b - - 0 1 illegal: No proof kernel
Q1N1K2B/1p1npQ1N/Q1PRp2k/2bb1Q2/BqN2pbR/6rp/3N2r1/3n4 b - - 0 1 illegal: No possible last move
6BQ/4k1B1/n4r1p/Q1n2BpK/R1p2bRp/2NpqB2/1R3PN1/rb2q1R1 b - - 0 1 illegal: No proof kernel
r2bB3/6RK/1R4Q1/1bp4p/R3N1Qp/qNpnn1qp/B2R1B1P/Bq5k b - - 0 1 illegal: Other
1qbqN2r/2r3b1/5q2/1P3B1Q/r4B1N/2NB2B1/1Q1B1krQ/r4bRK b - - 0 1 illegal: No possible last move
2R4r/R1Pk1B1R/3np1b1/q1QR2Qn/3pB3/n1b5/4NKBR/r1n2Q2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 c5 a4 c4 axb5 c3 b6 a4 b5 a3 dxc3 Bh6 c4 Bg7 Nc3 Bxc3+ Bd2 Bg7 c5 Bf8 Bf4 Nc6 Bb8 Nxb8 g4 d5 c4 h5 f4 e6 b7 d4 g6 a2 g7 h4 f6 h3 g5 h2 g6 Qd7 f7+ Ke7 c6 Rh4 b6 Rh5 f5 Qd5 c5 Kd8 c7+ Ke7 f6+ Kd7 c6+ Kd6 Qg4 Rh7 Ne2 Qg2 Qg5 Qh3 Bg2 Ne7 g8B Nf5 g7 Qc3+ Kf2 Na6 b8R Rh8 b7 Nb4 Bh7 Bd7 c8R Be8 g8B Nc2 c7 Na3 Bg6 Bh6 f8Q+ Kd7 f7 Qa5 Qc5 Nd6 f8Q Ra7 Bd3 Bg6 Bde4 Ra8 Bf7 Ra6 Rac1 a1N Rc2 Nb3 Ra8 Nc1 b8R Ra7 Rb5 Ra6 Qh5 Bd2 Ra7 Bc3 Qcg5 Rb6 Rd5 Rb1 Qf3 Ra1 Qd3 Bb2 Qc4 Bc3 Qc5 Rb1 Qfh6 Be1+ Kf3 Bf5 Bh3 Bf2 Qhf6 Be1 Nc3 Bg6 Kg2 Ra1 Qf1 Rh6 Rf2 Rh8 Ne2 Bd2 Rf3 Bb4 Kf2 Bc3 Bg2 Qa6 Rg1 Qa5 Rh3 h1N+ Kf3 Qb6 Rh7 Ng3 Kf2 Qa5 Rgh1 Nh5 Rh2
5nk1/1B5q/2b2n1Q/Nq3P2/RppN1nQ1/2r5/2Q2qnR/1K1RQNQ1 b - - 0 1 legal: proof: c4 a5 b4 axb4 a4 b5 e4 f5 exf5 d5 cxd5 b3 Nf3 b4 Ng1 Ra5 Bc4 Rc5 Bf1 Rb5 axb5 e6 f4 h6 g4 Nd7 g5 Bc5 Bb2 Be7 Bd4 Bf6 gxf6 Nc5 Bf2 Nd7 Bh4 Nb8 Bg5 hxg5 h4 Kf7 d4 c5 Kd2 b2 Kc2 c4 b6 g4 b7 g5 h5 e5 h6 g3 d6 g2 d7 g4 d5 e4 d6 e3 Nd2 b1N h7 g3 Ne2 g1N Bg2 Qe7 d8N+ Kf8 Ra7 Qc7 Nc6 Nc3 Ra4 Qg7 Rh2 Na6 d7 Nc5 b8Q Qg6 Qb6 Nb1 Nf1 Nd2 Na5 Ne6 Ba8 Bb7 d8R+ Kf7 Qd4 Ndf3 Kb1 g2 Qc2 Ne1 Qdd2 Ne7 Qd4 Rg8 h8Q Bf3 Rd7 Nh3 Qb6 Be4 Rd1 Bc6 Qh4 g1Q Qf2 Q1g2 Qd4 Nd5 Qdd2 Bb7 Nd4 e2 Qg1 Bc6 Bb7 Qh6 Qdc3 Kf8 f7 Kg7 f8Q+ Kh8 f6 Qgg5 f7 Qh7 Qb3 Ng2 Nf5 e1Q Qd6 Qf2 f8Q Qgh5 Qe2 Nf6 Qh6 Rg3 Qde5 Rc3 Qbc2 Kg8 Nd4 Nf8 Q5e3 Qe5 f5 Nf4 Q3d2 Qd5 Qde1 Qb5 Qg4+
3b1QB1/p1BBP1np/1R2Nq2/K7/b5QB/4qp1n/k1R3Q1/3R1qBr b - - 0 1 legal: proof: h4 e5 g4 d5 f4 exf4 c4 b5 cxd5 g5 a4 Na6 axb5 Qd7 Na3 Rb8 Nc2 Rb6 Nb4 Qd8 h5 Rc6 Nd3 f3 Nf4 gxf4 g5 Rg6 hxg6 Qd7 Ra5 Qd6 Ra1 Qd8 d4 Kd7 Kd2 Kd6 Kc3 f5 e4 c5 b4 f2 b6 c4 b7 f3 b8Q+ Qc7 e5+ Ke7 d6+ Ke6 g7 Kd5 b5 f4 d7 Bd6 d8B Bh3 g6 Bf5 b6 Qc5 b7 Qc7 e6 Ne7 g8B Bc2 g7 Ba4 Ne2 Nb4 Bh3 f1Q Be3 f2 Rc1 Nf5 Bh4 Nd3 Qf8 Be7 b8R Bd8 Rb6 f3 Qd2 Nf4 Kb4 c3 Ka5 Kc4 d5 c2 d6 Qf7 d7 Qg2 e7 f1Q Rd1 c1Q Nd4 Qgf2 Bg4 Nh3 Ne6 Qf6 Rg1 Qh2 Qg2 Qc2 Rh1 Qf4 Bef2 Qe3 Bg1 Bb5 Rc1 Kb3 Rd1 Ka2 Rc1 Bc7 d8B Ba4 Rd1 Bh2 Bc7 Bf4 Bb8 Bc7 Rc1 Bd8 Bc7 Nd6 Bf7 Nf5 g8Q Ng7 Bf5 Nh5 Q8g4 Rg8 Rd1 Rg6 Bg8 Rg7 Be4 Rg6 Bc6 Rh6 Bd7 Ng7 Rc1 Qc4 Bgf2 Q4e2 Rhd1 Qf1 Bg1 Nf4 Be1 Rh1 Bh4 Nh3 Rxc2+
2Q1n3/1k1bq1rr/1B1B3N/8/bB1Brq2/KB5N/2PQ2Q1/1RnqrN1r b - - 0 1 legal: proof: f4 b5 d4 f5 a4 h5 axb5 c5 g4 cxd4 gxf5 e6 b4 Bc5 e4 Qe7 e5 Qd8 Ra3 Bd6 Rg3 Be7 Rg4 Bf6 exf6 hxg4 Kd2 d5 h4 Kd7 h5 Kc7 h6 a5 f7 g5 f8N a4 b6+ Kb7 b5 g3 f6 g2 f5 e5 h7 e4 f7 a3 f6 a2 Qe1 a1Q Qh4 e3+ Kd3 g4 Ne6 e2 f8B e1R f7 g3 Qh3 Nd7 Nd2 Qe7 Ng7 Qa4 Nf5 Ngf6 Nh6 Ne8 Qg4 Ra7 Nh3 g1R Qg7 Rg8 h8B g2 Ba3 Re6 Bb4 Re4 Be2 Rb1 Nf1 g1R Qg2 Re1 Kd2 d3 Kc3 d4+ Kb2 d2 Bc4 d1Q Bb3 d3 Bd4 d2 Ba5 Qe5 Bd6 Rg7 f8B Nc5 Bfe7 Qc4 Ka3 Nd3 Bb4 Qec7 Bf8 Bd7 Bfd6 Kb8 b7 Nc1 Qe2 Rh7 Qf3 Rgg7 Qg2 Qf7 Rg1 Qe7 Rh1 Ra6 Rg1 Rc6 Bab6 Rc5 B6a5 Ka7 b6+ Ka6 b8Q Ba4 b7 Rh5 Qd8 Rhh4 Bg3 Qf4 b8Q Rh5 Qbd6+ Kb7 Bab6 Rh4 Nf2 Rh1 Nh3 Qh5 Qc5 d1B Qc3 Bg4 Qcd2 Bgd7 Bh2 Qc7 Bhd6 Qd1 Qc8+ Kc6 Qde2 Qd2 Bdc3 Na2 Bdc5 Rb1 B3d4 Rd1 Nh2 Qd3 Qb8 Qf4 Bd6 Qdf3 Qd8 Kb7 Qd2 Rb1 Rc1 Q3g4 Nf1 Ra1 Rb1 Qe2 Rb2 Re1 Rb1 Nc1 B6e5 Qeg4 Bed6 Qd1 Qc8+
1BNnr1k1/1Nn1r2N/B3r3/1r1bq1Q1/4bRBK/qrQ1P2B/1q6/B1Q5 b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 a4 e5 axb5 e4 h4 Ba6 f4 exf3 Ra4 Bg7 Rf4 gxf4 b4 Bc8 g5 Bh6 g6 Bg5 hxg5 Qd6 Qa4 Qd7 Qd1 Qd8 Kf2 Kf8 d4 h5 e3 f5 b6 a5 b7 c5 b5 h4 b6 c4 d6 h3 d5 c3 d7 a4 d6 c2 Bd3 a3 Qe2 h2 Bb2 c1Q Bc3 a2 Nh3 a1Q Qf1 Nf6 g7+ Kg8 Na3 Rh7 Ba6 Qf8 d8Q Be6 d7 Ne8 Nc4 Nc7 Nd6 Bd5 Nc8 Nc6 b8B Rh6 b7 Re6 Qf6 Qfa3 d8N Qcb1 Rg1 h1B Rg4 Qb6 Qc1 Qbb2+ Bd2 Qe5 Bc3 Qb1 Ba1 Qbb2+ Kg1 f2+ Kh2 f3+ Rf4 f1R+ Kg3 f2 Kh4 Bhe4 Qe7 Kh7 g8B+ Kh8 Qc3 Rb1 g6 f1R Ng5 Rfd1 Nh7 Rd3 Qc1 Rb3 Qg5 Rb5 Bf7 Rb3 Be8 Kg8 g7 Rb5 Bh5 Re7 Ne6 Nd8 Bg4 Rb3 Nc5 Rb5 Rf2 f4 Bh3 f3 Rf1 f2 Bg4 Kf7 g8B+ Ke8 B8e6 Rb3 Bef5 Kf7 Bh3 Re6 Bfg4 Ra7 Rd1 f1R Rd2 Rff6 Rf2 Ra8 Rf4 Re7 Ba7 Rb5 b8Q Rb3 Qb4 Rb8 Qh5+ Kg8 Qbc3 Rfe6 Qh6 R8b5 Bb8 Re8 Nb7 R6e7 Q1d2 Rf1 Qdc1 Rf2 Rf7 Rf6 Qh5 Rfb6 Rf4 Rbe6 Qg5+
1BBN4/1B4NK/3bbr2/2rBqnr1/qQ2Q1P1/nQ2nR2/4N3/3k1Bbn b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 g5 b4 g4 c4 g3 Ra3 Na6 Rc3 dxc3 hxg3 Ne7 g4 Nb8 g5 Ng8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 g4 a5 e4 f5 g6 h5 c5 a4 c6 d4 c7 c2 g7 d3 b6 d2 b7 a3 b5 h4 b6 h3 Bb2 c1R Qb3+ Qd5 Kg5 d1Q Kg6 f4 Qf3 a2 Nc3 a1B Na2 h2 Nb4 Rh5 Nc6 Qa4 Ne2 Nh6 Kh7 Nd7 b8Q Ra6 b7 Bd6 Qa8 Qdd4 b8Q Nb6 Qb3+ Nc4 Q8b4 f3 Qab7 Bd7 c8B f2 Ba3 Rg5 g8B+ Nf7 Rg1 h1N Rg3 Qc5 Rf3 Bd4 Qa8 Qd5 Bb2 Na3 Bb7 Rc5 Nd8+ Ke7 e6 Qe5 Bc1 Nh6 Bf4 Kf6 e7 Be6 e8B Nf5 Bd7 Be3 Bdc8 Rac6 Bg2 f1N Bh3 Bf2 Bf7 N1e3 Bf1 Bg1 Bg8 Bd7 Bd5 Be6 Bh2 Rg8 Bg3 Kg5 Bf4+ Kh4 Bh2 Rg5 Bf4 Qd4 e5 Be7 Nc1 Bf7 e6 Qa6 Bdc4 Qa4 Bb8 Qe5 Bba6 Rb6 Qe4 Bf8 Rf2 Kg3 Bd5 Be7 Bab7 Ra6 Rh2 Bf8 Rh3+ Kf2 Ne2 Rb6 Qb4c4 Ke1 Rf3 Kd2 Qbb4+ Kd1 Qcc3 Nh6 e7 Rf6 e8N Bd6 Qcb2 Be6 Ng7 Nhf5 Q2b3+
N1qn1N2/nQ1Q4/4q1r1/b3R2P/1rn1bN1q/1b1Nk2B/B1n1BN2/1K2Q3 b - - 0 1 legal: proof: c4 b5 b4 g5 a4 d5 cxd5 e5 axb5 e4 Ra4 e3 fxe3 Nh6 e4 Ng8 e5 Bg7 Na3 Bh6 Nb1 Bf8 g4 h6 Ra3 Qd7 Rf3 Qe7 Rf4 Qd8 Bb2 Qd6 Bd4 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 h4 Ke7 d4 c5 Kd2 a5 Kc2 f5 e4 g4 d6+ Ke6 g7 g3 d7 c4 b6 c3 b5 a4 h5 f3 b7 a3 b6 g2 Qe1 f4 Nd2 a2 Be2 a1N+ Kb1 f2 Nc4 f1N Nb2 f3 Nd3 f2 Nh3 Nh6 g8B+ Nf7 d5+ Ke7 d6+ Ke6 Rh2 Nc6 b8N g1Q b7 Qh4 d8Q Ne3 d7 f1B Nhf2 Nc4 Rg2 Qgh1 Rg5 Bg2 Qc7 Ra2 Na6 Rc2 b8N Na7 Qb7 Rh6 d8Q Qg4 Nab4 Qhh4 Nd5 Bb4 Nd7 Rg6 Qdc7 Ba5 N5f4+ Ke7 e6 Nd8 e5 Be4 Qcc6 Ra2 Rf5 Nc2 Nf8+ Bd7 Qcc8 Ra4 Qcc7 Ke8 e7 Be6 Rg5 B6d5 Be6 Qf5 Bd7+ Kf7 e6+ Kf6 e8B Qe5 e7 Qe6 Bf7 Rb4+ Nb2 Bc6 Qcc8 Ba4 Re5 Bb3 Bg8 Bf5 e8N+ Kg5 Re3 Be4 Nc7 Kf5 Na8 Ke5 Qcc7+ Kd4 Qcc6 Bd3 Re5 Be4 Qd5+ Ke3 Nbd3 Nd6 Bb5 Qef6 Qd1 Ba4+ Nb2 Na1+ Bed3 Qf7 Bd7 c2+ Ka2 c1Q Bh3 Qc5 Kb1 Nc2 Be2 Qc8 Qe1 Qff5 Qdc6 Qfg4 Bgc4 Qge6 Ba2 Bb3 Nbd3 Nc4 Qcd7
Qqb2BB1/NrQ4r/r1qR2B1/Rq2Q3/q1n2P2/3n1RRR/2q5/2k2Kn1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 g4 h4 Bg7 Nc3 Qd6 Nce2 Qb6 Nd4 Na6 Ndf3 gxf3 g4 Bh6 g5 Nb8 g6 Bg5 hxg5 Qd6 Ra2 Qd7 Ra1 Qd8 b4 Kd7 d4 Kd6 b6 e5 g7 h5 g6 a5 b7 c5 b5 e3 b6 e2 Nh3 h4 Kf2 e1R Rh2 e4 Bd3 a4 Rh1 c4 Bb1 a3 Qd2 a2 Qb2 c3 Bc2 Nf6 g8R Na6 b8R Nb4 b7 Ra6 g7 Rh7 Rf1 e3+ Kg1 e2 Qa3 Ng4 Ng5 h3 Ne6 Ne5 Bg6 c2 Nc7 h2+ Kf2 h1Q Nb5+ Ke7 d6+ Kf6 d5 Nc4 Bd2 c1Q d7 Qc2 d6 Rb1 Na7 e1N Qa4 Qe8 d8R Qb5 d7 Nbd3+ Kg3 f2 Bb4 Qe4 Bf8 Nf3 Kg2 Qec6 Qa5 Ke6 Qc7 Kd5 Rh8 Kd4 g8B Ke3 Rg1 Rb2 Kf1 Kd2 Rg3 Qe5 Ra8 Qed6 b8Q Ng1 Qb5 Rb3 Qe5 Rb7 Rb1 Qb4 Rb3 Kc1 Ra3 a1Q Rc3 Rf7 Rhh3 Rh7 Ra3 Qbd6 Ra5 Qaa4 Rb8 Rb2 Rb3 Rb1 Rc3 Rb7 Ra3 Ndb2 Raf3 Nd3 Re8 Qdb4 d8Q Qbb5 Re6 Qbb6 Kg2 Qbb5 Rd6 f1Q+ Kh1 Qfd1 Qde8 Qcb3 Kg2 Qdc2+ Kf1 Qbb6 Qb8 Q3b5 Qf7 Qbc7 Qa8 Qb8 Qc7
1B2n2b/bK1N1PN1/4bn2/N2kQRnR/Qbr3b1/2q2nQ1/2R2n2/N1N5 b - - 0 1 illegal: No possible last move, all moves rejected
3n2k1/3nN2q/1Qq1bQ1p/3Q3N/rR3K2/1P2B2R/1b2bN1r/qR1Qr1Q1 b - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 g5 cxd5 f5 exf5 a4 h4 gxh4 Ne2 a3 Ng1 a2 Be2 Na6 Na3 Nb8 Rb1 a1Q Bc4 Qa2 Ra1 Qb1 Ba2 Qd3 Bb1 Qxb1 Ke2 Kf7 Ke3 e5 f4 c5 g4 e4 d4 h3 g5 h6 f6 h2 b6 c4 f5 c3 b7 c2 g6+ Ke8 g7 Kf7 d6 Ra4 d7 Bc5 b3 Qe7 d8Q Nd7 b8R Qe8 Kf4 e3 Nh3 e2 Rb4 e1R d5 Bf8 d6 Qe7 Be3 c1Q Nb5 Bb7 Nc7 Qc5 Ne8 Qc3 Qb6 Ba6 Nf2 Qbc2 Rb1 Be2 Qd5+ Qe6 Qd1 Ne7 Qd5 Nb8 d7 Qa1 d8Q Kg8 Q8d7 Nec6 f7+ Kh7 f6 Nd8 Qd1 Rg8 Q7d5 Bc5 f8Q Bd4 f7 Nd7 Qe7 Bb2 Qf8 Qec6 Nf6+ Kg6 Nh5 Kh7 Qfd6 Re8 Qf6 Re7 Rg1 h1B Rg3 Bg2 Rf3 Bh3 Rg3 Bhg4 Rh3 Be6 f8N+ Kg8 Ng6 Re8 Ne5 Qh7 Ng6 Rh1 Ne5 Bf7 Qbb5 Bc4 Qb6 Rh2 Bd4 Bb5 Ng6 Ba6 Nh4 Re1 Be3 Be6 Qc3 Kf7 g8Q+ Ke7 Qg1 Kf8 Ng6+ Kg8 Qf6 Be2 Ne7#
1k1N1R1n/P2B2r1/2bN2p1/1bN2RK1/R2QrR2/2bb1Q1q/Q4nR1/r2n4 b - - 0 1 legal: proof: e4 d5 b4 a5 g4 axb4 c4 f5 exf5 h5 gxh5 c5 cxd5 c4 Ba3 c3 Bb2 cxb2 Ke2 Kd7 Kf3 Kc7 Kf4 b5 h4 g6 a4 b3 d4 b4 d6+ Kb7 a5 e6 d5 Bd7 h6 Ne7 h5 e5+ Kg5 e4 f4 e3 h7 e2 a6+ Ka7 f6 e1R f5 Qa5 f7 Qa2 h6 Bg7 f8R Qa4 f6 Be8 d7 Nec6 d8N Ne5 f7 Bb5 d6 Rg8 h8R Nbc6 d7 Ng4 h7 Kb8 Na3 b1N Rh2 b2 Bh3 b3 Ne2 Nc3 Nf4 b1B Rg2 b2 Nfe6 B1d3 Nc4 b1B Nc5 Nf2 Nd6 Qa3 Qf3 Ncd1 Bg4 Qb3 Ra4 Bc3 Be6 Rg7 Rhg8 Qc2 h8Q Qb3 Qh2 Ne5 Rh8 Bc6 Rhh4 Bdb5 Rhf4 B1d3 N8b7+ Ka7 d8Q Qb1 Re8 Nfg4 f8R Nde3 Rg1 Qc2 Qhf2 Ra1 Qe7 Nd1 Qd4 Qg2 Qf7 Qh3 Bd7 Ngf2 Rg2 Rd8 Re7 Re8 Nd8 Kb8 Re6 Re7 Ref6 Re8 R6f5 Re7 Qa2 Nf7+ Kf6 Nh8 Kg5 Re4 a7+
n2q1n2/B1Nqq3/1BbpQk2/2NbNr2/P1r5/3Q4/2B2QN1/q2NKR1q b - - 0 1 legal: proof: f4 a5 d4 f5 a4 h5 b4 axb4 g4 c5 gxf5 e6 dxc5 Nh6 e4 Be7 e5 Bf6 exf6 Ng8 Ra3 Kf7 Rg3 Ke8 Rg4 hxg4 c4 Kf7 h4 g5 c6 b5 c5 e5 c7 d6 h5 e4 h6 e3 h7 g3 c6 b3 Bd3 e2 Nh3 b2 Bc2 g2 Rf1 g1Q Nc3 b1Q Be3 b4 Bb6 Qa2 Qd3 b3 Nd1 Be6 c8Q g4 c7 b2 Qb7 b1B c8Q+ Bd7 Qg2 g3 Qf2 Ne7 Ba7 Rg8 h8B g2 Bb6 Rf8 Bg7 Kg8 f7+ Kh7 f6+ Ng6 f5 Bc6 Qe6 Na6 Nf4 Qh1 Bh6 g1Q Ng2 Qh3 Bhe3 Nc7 Ba7 Rc8 Beb6 Qa1 Qec4 Re8 f8N+ Kh8 f7 Kg7 Qcb3 Na8 Nd7 Nf8 Ne5 Qgh1 Qbd5 Ba2 f6+ Kh6 Q5c4 Qhd7 Qg4 Bad5 Qg8 Ng6 f8N Kg5 f7 Re7 Nf3+ Kf6 Ne6 Nf8 Nc5 Re4 Ne5+ Rf4 Qc4 Rf5 Qa6 Ng6 f8N Rc7 Nfe6 Nf8 Kd2 Rc8 Nc7 e1Q+ Kd3 Qb4 Ke2 Qbh4 Ke1 Qhh7 Qb5 Qhe7 Qd3 Rb8 Ba5 Rb4 B5b6 Rc4 Qe6+
Q1R1Q2n/2n1N1R1/NpRPq2N/3Br3/1Q2n2b/kn1n4/N2q2r1/1Kb4N b - - 0 1 legal: proof: g4 f5 f4 d5 b4 a5 c4 axb4 cxd5 h6 e4 Ra3 g5 Qd6 g6 Rh3 Bb2 Qd8 Bf6 Be6 Bg5 Bf7 gxf7+ Kd7 exf5 hxg5 f6 Ra3 f5 Ra8 h4 Kd6 a4 Kc5 h5 e5 d6 e4 d3 g4 Kd2 g5 Kc1 e3 h6 g3 h7 b6 d7 e2 a5 e1N a6 g4 a7 g2 Nc3 b3 d4+ Kb4 d5 c5 Qd2 c4 Nge2 g1Q Na2+ Ka3 Kb1 b2 Bg2 g3 Rh6 Be7 f8R c3 f7 Bh4 Rc6 Nh6 f6 Rg8 h8N Na6 Ng6 Nc7 Ne7 Qe3 d6 Qe6 Bh1 g2 Ng3 g1B Bd5 Nd3 Nh1 Be3 Qe1 Rc8 a8N Rg2 Rg8 Qf8 d8N Bc1 Rg7 Qh8 f8Q Nf7 Qg8 Qh6 Qe8 Nh8 f7 Qd2 f8Q Rb8 Nf7 Rb7 Qe5 Ra7 Qg8 Ra5 Nh6 Rc5 Qe4 Rb5 Bb3 Re5 Bd5 Nb5 Qgf8 Qg6 Qc8 Qe6 Bc4 Ka4 Nc7 Qg5 Qfe8 Qd2 Na6 Nc7 Bd5+ Kb5 N2b4 c2+ Ka2 b1N Qg4 Ka5 Nc5 Nc3+ Kb3+ Kb5 Ra8 Ba3 Na2 Bb2 Qd4 Ne4 Na6 Ba3 Qb7 Ka5 Rc8 c1N+ Kc4 Nb3 Qa8 Bc1 Qb2 Ka4 Qc3 Nef2 Qd4 Qd1 Kc3+ Ka3 Qe4 Qe1+ Kc2 Qe2+ Kb1 Qd2 Qd4 Ne4 Qb4+
RN2b1rn/1kP2q1Q/2rR3b/nKp2bQ1/7R/R1q3Nn/n2QN3/1B3R2 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 h5 g4 d6 gxh5 Be6 axb5 Bd7 c4 Bc8 Bb2 Ba6 Bd4 cxb4 c5 Bb7 c6 Bc8 Bc5 dxc5 Ke2 e5 h4 a5 f4 g5 d4 g4 Kd3 a4 Kc4 a3 b6 b3 c7 Kd7 b7 Kc6 f6 a2 f5 b2 h6 e4 h7 e3 d5+ Kb6 h5 g3 h6 g2 d6 e2 f7 e1Q f6 Ne7 d7 Na6 b8N Nb4 Bd3 Qf2 Qd2 Ra6 Rh4 Qf5 Nc3 b1B Ne4 Ng6 Ng3 Kb7 N1e2 g1N Kb5 Rg8 h8R Rc6 h7 Bh6 f8Q Nh3 f7 Qdf6 d8R Bd7 Qe7 Qc3 f8R Be8 Qeg5 Qf7 Rd6 Bc2 Rf1 a1N Be4 Nb3 Bd3 Qe6 R8f3 Na2 Bf5 Qf7 Bd3 Bd1 Bb1 Na5 Rfd3 Bc2 Rdf3 Rg7 Rg8 Be4 h8Q Bf5 Qh7 Nh8 Rf8 Rg8 Rfd3 Qa1 Ra3 Qc3 Na6 Bed7 Ra8 Be8 Nb8
4N1n1/NK3N2/1bn2p2/4Bb2/1k2qq2/b2PrN1Q/N2bQQ1R/1nR1R1q1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Ke7 g5 Ke8 g6 Bf8 Nh3 h5 Nc3 a5 Ng1 f6 Bh3 Ke7 Bg4 hxg4 Nb1 Kd7 Ra4 Ra6 Ra1 Re6 Na3 Re7 Nb1 Rf7 gxf7 Rh7 Ra2 Rh5 Ra1 Rh8 Kf2 Kd6 h4 Kc5 b4+ Kc4 e4 g5 d6 c5 b6 f3 Ke3 f2 h5 f1Q h6 g3 d7 a4 e5 a3 Ke4 a2 h7 g4 d3+ Kb5 Kd5 g2 b7 c4 e6 g3 e7 c3 e8N c2 Nf3 g1B Bb2 c1B Rh2 g2 Qe2 Ka4 b5 Bch6 b6 Bge3 Be5 g1Q Nc3+ Ka5 Rc1 Nc6 b8R a1N b7 Bfc5 f8Q Qc7 d8N Nc2 Nf7 Na3 Qe7 Bhf4 Qf2 Qfg2 Ra8+ Kb4 b8N Nb1 Ra1 Bf5 Re1 Na3 Rac1 Nb1 Qe6 Bb6 Qe7+ Bec5 Qe6 Bd2 Qe7 Nd4 Nc6+ Kb3 Qe6 Ba3 Na7 Nc6 Qe7 Bg6 Qe6 Kb4 Qh3 Qg4 Qhf1 Bf5 Q1e2 Qb7 Kd6 Qf4 Kd5 Nh6 Kd6 Rg8 h8Q Rg3 Kd5 Ng8 Qh3 Qa8 Kd6 Bc5+ Kc7 Bd4 Nh4 Re3 Nf3 Bc5 Ned6 Qe8 Kb7 Qe6 Ne8 Bb6 Qh6 Qd5 Qh3 Qde4 Na2+
2B3N1/KbrR1Q1P/2b2q2/1NQ5/1Nb1pbN1/b1b4N/2q3kB/3BrnQ1 b - - 0 1 legal: proof: d4 d5 a4 g5 f4 b5 axb5 h6 e4 Na6 exd5 Bg4 c4 Rb8 b4 Ra8 d6 Bc8 g4 Kd7 c5 Ke6 d5+ Kf6 Ra3 Kg6 Re3 Nb8 c6 Nd7 cxd7 gxf4 g5 h5 Rg3 Bb7 Rg2 Bc8 Rg4 hxg4 Ke2 Kf5 Kd3 c5 Kc4 Ke4 h4 a5 h5 f5 g6 e5 b6 g3 Kb5 f3 g7 a4 b7 g2 b8N f4 h6 f2 h7 f3 Na6 a3 Nc3+ Kf5 Nh3 Kg4 Be2 Kg3 Bf4+ Kh4 Bh2 e4 Qg1 c4 Bd1 Nf6 g8B f1B Be6 a2 Qc5 Qe7 Kb6 g1B d8Q a1B d7 f2 d6 Bb7 b5 Ng4 Qe8 Ne3 d8Q Qf6 d7 Ra7 Nb4 Rg8 Qg6 Bd3 Qa8 f1B d8N Bc2 Qgf5 Ba4 Nf7 Rg2 Nh6 Re2 Qd8 Re1 Ng4 Bd3 Qf3 Nf1 Qdd4 Be3 Rg1 Bd6 Bc8 Bef4 Rg2 Bb2 Rd2 Ba3 Qg1 Bde5+ Nc6 Be2 Rd6 Bd4 Ne7 Bde5 Ng8 Bd4 Na2 c3 Nb4 c2 Qb3 c1Q Qf7 Qg7 Rd8 Qc2 Rd7 Bc3 Rd2 Ba8 Rd7 Rc7 Ka6 Bb7+ Ka7 Bc4 b6 Bba6+ b7 Qf6 Nc6 Ba4b5 Nd4 Bc6 Nb5 Bfe5 Kb6 Bf4 b8N Bab7 Na6 Qd2 Qgd4 Qd3 Ka7 Qc2 Bg1 Kg3 Bh2+ Kg2 Nb4 Bd3 Qe3 Bc4 Qg1+
2NN2BR/r1N1q2r/Q1NkPrQ1/BK2nq2/2B4q/r2Nn3/2q2p2/3b1Q2 b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 a4 e5 axb5 e4 h4 Ba6 f4 exf3 Ra4 Bg7 Rf4 gxf4 b4 Bc8 g5 Bh6 g6 Bg5 hxg5 Qd6 Qa4 Qd7 Qd1 Qd8 e4 Ke7 d4 f5 Kd2 h5 Kd3 a5 Kc4 c5 g7 h4 e5 h3 e6 h2 b6 a4 b7 f2 d6+ Ke8 d7+ Ke7 b5 f3 d5 f4 g6 a3 b6 a2 Nh3 a1R Nc3 R8a7 Nb5 Nc6 b8Q R1a3 b7 Nf6 g8Q Ng4 g7 Rh7 Nc7 Kd6 Bd2 Nce5+ Kb5 c4 Ba5 c3 Bc4 f1R Nf2 c2 Nd3 c1Q Qa8 f2 b8N Qe7 d8N f3 Ndc6 Qc2 Nd7 Ne3 Nb6 Bd7 Qb7 Be8 Qa6 Bh5 Qf7 Bg4 g8B Bh5 Qg6 Bg4 Rg1 h1Q Qe1 Qhh4 Rh1 Rg1 Qd1 f1Q Qe2 Qfh3 Qf1 f2 Rh2 Bd1 Rh1 Qf5 Rh2 Qhg4 Rh3 Rf7 Rh8 Rh1 Nd4 Rhh7 Nca8 Qf8 Nc7 Ke7 d6+ Kd8 d7 Ke7 d8N Rf6 Nc1 Qh4 N4c6+ Kd6 Nd3 Qe7 Nc8#
q1BNQ1k1/2NR4/1N3qq1/Q1pbn3/1Q2PQ2/3p3R/1K1Q3n/1bnr2Rr b - - 0 1 legal: proof: a4 d5 e4 b5 axb5 h5 d4 e6 g4 Bc5 gxh5 Bb6 c4 dxc4 d5 e5 Be3 Bc5 Bd4 Bb6 Bc3 Be3 Bd4 exd4 fxe3 Bd7 Ra3 Bf5 Ra1 Bc8 Kd2 Kf8 Kc1 a5 b4 f5 h4 c5 b6 g5 d6 g4 h6 a4 e5 f4 b5 d3 e6 g3 d7 g2 e7+ Kf7 e8Q+ Kf6 h7 Kg7 h5 f3 b7 c3 h6+ Kf6 b6 f2 e4 a3 Nd2 a2 Ne2 g1Q Rh3 c2 Nd4 Nc6 b8Q Qg6 b7 Ne5 Kb2 c1N Nb5 Qe7 d8R Be6 Rd7 Bd5 Nc4 Ra4 Be2 f1B Bg4 Be2 Qd2 Bd1 Nc7 Bc2 Nb6 Bb1 Qa8 Qd8 Qaa5 Qa8 b8N Ra3 Nc6 Ra4 Nd8 Rc4 Qdb4 Rc2+ Ka3 Rd2 Be6 Rd1 Kb2 Nf3 Bg4 Ne7 Bf5 Nc6 Bg4 Rg8 h8Q+ Rg7 h7 Nh2 Qhg8 Ne5 h8Q Rh1 Qh6 Rh7 Nf7 Rd1 Qgf8 Rh8 Qe3 Rh7 Qd6+ Kg7 Qed2 Rh8 Qb8 Rh7 Nd8+ Kg8 Qe7 Rf7 Qeg5 Rff1 Qgf4 Rh1 Rd6 Qf7 Bc8 Qg6 Rd7 Rdg1 Qe1 Ne2 Nb5 Nef3 Ka3 Bc2 Qbd6 Rf1 Rd1 Nc1 Qe7 Bb1 Qed2 Rfg1 Nc7 a1Q+ Qa2 Qd4 Qad2 Qdf6 Re1 Ne5 Kb2 Rg3 Rf1 Rf3 Rg1 Rf1 Qab5 Re1 Q5a5 Rd1 Qe8+
4R2N/Qr2nn2/1B1N1n2/2B1p1k1/B1QN2NQ/1n2r2q/1bp3Pb/N5bK b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 b4 Nf6 h3 Bg4 hxg4 Nh5 f5 Nf6 Ra3 Ng8 Rf3 Nc6 Rf2 Nb8 Rf4 gxf4 Kf2 Kf7 d4 Kf6 d6 a5 d7 c5 b6 e5 b5 h5 g5+ Kf7 b7 h4 f6 Kg6 f7 h3 d5 f3 d6 c4 b6 h2 Qa4 c3 Bb5 c2 Nd2 Nh6 Nh3 Be7 f8B Rh7 Nb3 Nc6 b8Q Qc8 d8N Nf7 d7 Bc5+ Be3 Ne7 b7 Rg7 Qb4 a4 Na1 a3 Ba4 a2 Qa7 Kf5 Kg3 f2 b8N f1N+ Kf2 Kg6 Nb7 Nd2 d8N Nb3 Nd6 Bd4 Rd1 h1N+ Kg1 Nf2 Nbc6 Ng4 Nf2 Nf6 Ng4 Bc5 Bd4 e3 Kh1 e2 Qc4 Kh5 g6 e1B Rd3 Rh7 g7 Bg3 g8Q Bh2 Qh8 Kg5 Bg1 Rb8 Nd4 Rb7 Rf3 Rh3 Qh4+ Kg6 Rf5 Re3 Rh5 Qf5 Rh8 Qf3 Bh6 Bb6 Re8 Qh3 Bf8 Nc1 Nab3 a1B Bf2 Bb2 Na1 Nb3 Bg1 Ng5 N8f7 Bc5 Qf2 Kh5 Nh8 Nf7 Qe1 Kg5 Qeb4 Nc6 Be7 Bb6 Bd8 Bc5 Bb6 Ne7 Qe1 Rd7 Qg3 Rb7 Qh4+ Kf4 Qe2 Re4 N4f5 Bcd4 Qc4 Be3 Bf2 Bc5 Be1 Bcd4 Bc3 Bdg1 Nd4 Re1 Bb4 Re3 Qg3+ Kg5 B4c5 Ned5 Qf2 Ne7 Qh4+
4k2r/1p1N3b/4Q1bN/1KQnb2r/2N3nN/2pq1N2/rR5P/QR1Rr2B b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h6 g4 Nd7 g6 Nb8 g7 Ra5 Na3 Ra7 Nb1 Ra8 g5 Bd7 g6 Qc8 Bb2 Qd8 Bf6 Bc8 Bg5 hxg5 Ke2 e5 Kd3 c5 Kc4 g4 d4 e4 a4 g3 d6 b3 f6 g2 f7+ Kd7 a5 b2 a6 e3 a7 e2 d5 e1R Na3 b1B Ra2 Rh4+ Kb5 c4 Rb2 c3 Nc4 Qf6 Nf3 g1R Bg2 Nh6 g8N Re6 g7 Nf5 Nh6 Kd8 g8Q Rge1 d7 Ne3 Nf5 Qe5 Qd4 Ra6 Qc5 Rh5 N5h4 Bh7 Rf1 Ra3 Bh1 Ng4 Qg6 Qc7 Qe6 Bg7 f8N Na6 Rg1 Rb8 a8Q Nb4 Qa4 Ra2 Qd1 Ree5 Qa1 Qd6 Rgb1 Rba8 Qg8 Ke7 d8R Bcf5 Nd7 Bh8 Qg6 Re1 Qh6 Kf7 Qhe3 Qg3 d6 Bfg6 Qe4 Be5 Qed5+ Kg7 Qe6 Nd5 Nf6 Nde3 d7 Qh3 Nd4 Qf1 Ndf3 Rb8 Rc8 Qe2 d8N Rba8 Nf7 Qd1 Rc6 Rh8 Rd6 Kf8 Nh6 Qd2 Qb6 Qe2 Rd3 Nd5 Rdd1 Qd3 Qd4 Ne7 Nd7+ Ke8 Qf5 Nd5 Qc5 Bd4 Qf6 Be5 Qe6+
q2QqnRN/q3P1K1/p1b3Qr/1n3BQ1/1k1N3b/1r2pNq1/1Q6/BQ5B b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 e5 dxe5 f6 e6 f5 e4 Bg7 b4 Nf6 e5 Ng8 Ra3 Bh6 Re3 Bf8 Re4 fxe4 Ke2 Ke7 Ke3 c5 Kf4 h5 Kg5 e3 Kg6 a6 g4 h3 f4 h2 g5 h4 b6 h3 b7 c4 d6+ Ke8 b5 c3 e7 Kd7 e8B+ Ke6 b6 c2 d7 Bd6 f5+ Ke7 f6+ Ke6 f7 Rh4 f8N+ Ke7 e6 Ra4 Bd3 Nc6 b8Q Nd4 b7 Ra3 Bb2 c1Q Qg4 Nf6 Kg7 Qcc7 g6 Nh7 Ba1 Rb3 Ne2 Bg3 Rg1 Kd6 e7 Kc5 Qg5+ Kb4 Nd2 h1Q Bf5 h2 Nf3 Nb5 Ned4 Bh4 Bf7 Qe8 d8Q Qcd7 Bd5 Qg2 Qe5 h1Q b8Q Bb7 Qh2 Qg3 Qb2 Qe1 Qb1 Qg2 Qh2 Qh1 Qhb2 Bc6 Kg8 Ra7 Nd2 Bb7 g7 Qe4 Qg4 Qh1 Kh8 Ba8 g8Q Rc7 Ng6 Nf8 Qe6 Rc6 Qf4 Qh3 Bh1 Qf3 Rg3 Qfd5 N2f3 Qa7 Kg8 Qg1 Nh8 Qe1 Rg7 Qg3 Qg5 Qe4 Qf7 Rh6 Qff6 Qeb7 Qfg6 Qbb8 Rh7 Bc6 Rg7 Qed7 Kf7 Qba8 Rg8 Qe8+ Kg7
2n5/1b1RQNQ1/1qR1K1B1/n1QRQn1k/1bP1p1nB/2b2r2/1n2Bp2/5Q2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Qc7 f5 Ke8 Nc3 Qd8 h4 Na6 g4 Bh6 Nce2 Nb8 Nf4 gxf4 g5 Bg7 g6 Bf8 Bd2 a5 Rc1 Ra7 Be3 Rc7 Ra1 Rc3 Bd2 Rg3 Bc1 Rg5 hxg5 Qc7 Rh6 Qb6 Rh1 Qd8 Kd2 e5 Kd3 d5 b4 h5 c4 h4 f7+ Ke7 b6 f3 b5 a4 f6+ Ke6 g7 Kf5 b7 Kg6 b6 h3 Be2 f2 Nf3 h2 Qf1 Bc5 f8Q a3 f7 a2 Qe7 Rh3 f8Q Kh5 g6 Nc6 b8Q Bb4 b7 Qb6 Bg5 Na5 Rd1 a1B Bh4 Bac3 Qa7 Rg3 b8Q Bb7 Qfc8 Rh3 Qcc5 Rg3 Rg1 h1N Rd2 Rh3 Rg4 Ng3 Ng5 Nf5+ Rg3+ Kh6 Rf3 Kh5 Nf7 Rg3 Re3+ Rf3 Qbd6 Ngh6 g8R Ng4 Qdc7 Nd6 g7 Nc8 Rd8 Nh2 g8B Ng4 Rd6 e4+ Kc2 Rh3 Bh7 Rf3 Rc6 d3+ Kd1 Nh6 Qce5+ Nf5 Kc1 d4 Rd1 d2+ Kc2 Ba6 Qac7 Bb7 Rd3 Qa6 Qg7 Qb5 Qc7e5 Qb6 Ra1 d1N Ra2 Nb3 Ra7 Na5 Rd2 Ba6 Rd7 Ne3+ Kb1 Ng4 Kc2 Nb7 Kb3 Na5+ Ka4 Bb7 Rd5 Qc7 Kb5 d3 Rd1 d2 Rd7 Qb8 Rd5 Nd6+ Kb6 Qa7+ Kc7 Nc8 Kd7 Qa6 Ke6 Qb6 Rb1 d1N Rb3 Bd2 Rbd3 Nb2 Rd7 Be1 R3d5 Bec3 Bg6#
1KQR4/nnRR4/7r/2k2BN1/4r3/1R1RP1qq/1pbB1Bpq/2rrQ2Q b - - 0 1 illegal: No possible last move
3kBQ1R/B1B2R2/3bb2Q/N5pq/1nBqqBR1/pb5P/1q2Q2K/1nr5 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Na3 a5 Nc2 h5 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Ne7 Ng4 hxg4 Ra3 Ng8 Ra4 Kf7 Ra1 Ke8 Kf2 c5 b4 g5 e4 a4 d4 a3 e5 c4 e6 c3 f6 c2 f7+ Ke7 d6+ Kf6 d7 Ke7 h3 Nc6 b6 Nb8 d5 Rh6 d6+ Kf6 b7 Na6 b8B Qe7 b5 Nb4 Ne2 g3+ Kg1 g2 d8Q f2+ Kh2 f3 Bf4 c1Q b6 Qb2 Nc1 Rh7 Be2 f1B d7 f2 b7 Rh6 Bb5 Bc4 Qe2 f1Q Ba7 Qd1 b8B Bb3 Qb6 Qe8 d8Q+ Ne7 Rg1 Rh7 Qdd6 Ned5 e7+ Be6 Bc4 Nc3 Qdc5 Qc6 e8B Bd6 f8R+ Ke7 Rh8 Nb1 Qa6 Kd8 Qf5 Bg8 Qf8 Qe4 Rf1 Be6 Rg1 Bc2 Nb3 Rc7 Na5 Bb3 Rf1 Nd2 Rc1 Nb1 Rc3 Qdd4 Rg3 Rc8 Rg4 Rc6 Bd5 Rc1 Bc4 Qd1 Bg3 Qdd4 Rf7 Qd1 Bf4 Qdd4 Rg8 Qh8 Qc6 Qh5 Rh8 Bc8 Bd5 Be5 Qe6 Bd6 Qeh6 Bf5 Kg3 Be6 Bc4 g1Q+ Qg2 Qb6 Qe2 Qbe3+ Kh2 Q3d4 Bc7+
2KRn3/3rN2n/NB1pp1qn/3nP2B/N2b4/1N5q/qQQ1BrNk/4Q3 b - - 0 1 legal: proof: d4 a5 b4 b5 f4 g5 fxg5 c5 a4 cxd4 axb5 Nf6 b6 Ng8 h4 Nc6 g4 Qc7 b5 Nb8 Ra4 Qd8 Rb4 axb4 h5 Bb7 Qd3 Be4 Qd1 Bg6 hxg6 Qc7 Qd3 Qc8 Qd1 Qd8 Kd2 h5 Kd3 f5 Kc4 d3 Kd5 d2 e4 h4 c4 d6 Ke6 b3 c5 b2 e5 h3 c6 f4 b7 f3 g7 h2 g6 f2 c7 Ra7 c8N Ra3 g5 Ra7 b6 Na6 b8N Nf6 g8N Bh6 b7 Nh7 g7 Qa5 g6 Be3 Ne2 Bd4 Qc2 d1N Nb6 Nc3 Na4 Nd5 Nd2 b1Q Nb3 Kd8 Rg1 h1Q Be3 Qh3+ Rg4 Qd2 Nf4 Qa2 Bc4 f1N Be2 Ng3 Ng2 Nf5 Bg1 Qdd3 Rf4 Nab4 Na6 Ndf6 Rh4 Nbd5 Rg4 Ba1 Bb6+ Ke8 Rc4 Bd4 Rc7 Qdg3 Rd7 Qgg4 Nh6 Rf8 g8Q Qgg3 g7 Qgg4 Qh8 Qg6 g8B Rf7 Bh5 Kf8 b8Q+ Ne8+ Qf6 Rb7 Rd8 Rd7 Ng4 Nh6 Qb7 Qg7 Qf1 Rf2 Qe1 Qg5 Bgf7 Kg7 Bfg6 Rc7 Bf5 Rd7 Nf6 Qg6 Qb8 Ng4 Be4 Kh6 Bf3 Kg5 Qb7 Nh6+ Bfg4 Qc3 Be2 Qcd3 Ne3 Kh4 Ng2+ Kh3 Qb8 Qgg3 Ng8 Kh2 Qb7 Qc3 Qb8 Ra7 Qb7 Qg6+ Kd7 e6 Ne7 Qcd3 Kc8 Qh3 Qd7 Rb7 Qb5 Rd7 Qbb4 Ng7 Qa3 Ne8 Qab2
QK2nNq1/1P6/1nr2B1n/q4BQ1/2r5/3N1pQb/Nq3p2/1BQRnkQ1 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 b4 h5 Ra3 f5 Rc3 Bd6 Rc4 Be5 Rg4 hxg4 Qc2 f2+ Kd1 f4 Qb3 f3 Kc2 Bf4 gxf4 Nh6 Kb2 Rf8 Qd1 Rh8 Kc2 Ng8 Kb3 Ke7 Kc4 Kf6 Kc5 Kf5 h4 Ke4 d4 g5 b6 a5 d6 c6 b5 g3 h5 g4 h6 g2 f5 a4 b7 g3 b6 a3 d7 a2 Kd6 a1Q h7 c5 f6 c4 f7 c3 f8N c2 d5 Ra3 Nh3 g1Q Nf4 g2 Nc3+ Kf5 e4+ Kg4 e5 Kg3 e6 Ra6 e7 Ra5 e8B Ra8 Bg6 Ra5 Na2 Nh6 Bf5 Rc5 Nd3 Qb2 Bg5 c1N Bf6 Na6 b8Q Rc4 b7 Qa5 d8Q Nc7 Qa8 Rg8 h8Q Rg6 Qe7 Bd7 Qeg7 Be6 Qe1 Bc8 Qe3 Be6 Qc5 Ne8+ Kc6 Bc8 d6 Be6 Be2 Bc8 Bd1 Be6 Bc2 Bc8 Ndb4 Nd3 d7 Ne1 d8Q Be6 Bb1 Bc8 Bfd3 Bh3 Qde7 Qf1 Qhh7 g1N Bf5 Kg2 Nd3 Ne2 Qc7 Qg1 Qg3+ Kf1 Kd7 Nf7 Kc8 Nf4 Kb8 Nd5 Qhh8 Rh6 Q7g5 Nb6 Qce3 Rg6 Qc1 Nh6 Qh7 Rg7 Qh8 Rgc7 Qh7 R7c6 Qhc7 Rc3 Qh2 R3c5 Qcg3 Rc4 Qd6 Ke2 Qh4 Qg8 Qdg3 Ng2 Rd1 Ne1 Qhg5 Kf1 Qhg1+
4Rk1B/1p1n1q1R/1P5b/N2NR3/RQ1pb2K/2r2b1b/b1Q1q1NQ/q1R5 b - - 0 1 legal: proof: g4 f5 gxf5 c5 b4 g5 f4 a6 h4 g4 d4 cxd4 e4 Nf6 b5 Qc7 e5 Ng8 f6 Qd8 b6 Kf7 Bb5 Ke6 Bb2 Kd5 Bc1 axb5 f5 Na6 Bh6 Nc5 Bg5 Ne6 Bc1 Ng5 hxg5 Ra3 f7 Re3+ Kf2 Kc6 Kf1 Rh3 Kf2 Rh6 Ke1 Rf6 exf6 Kd5 Ne2 Kc5 Ng1 Kc6 Kf2 Kd6 Kg3 e5 c4 h5 a4 d3 c5+ Kc6 g6 d5 g7 Kd7 c6+ Kd6 a5 d2 a6 e4 a7 b4 a8N b3 c7 b2 Nh3 e3 Ra4 e2 Nf4 Qe8 Qc2 d1B Nd2 b1B Ng2 Qe6 Bb2 Qe8 Nb3 Ba2 Kh4 g3 Na5 e1Q Bc3 Be6 c8R Bf3 Nc7 Qe2 Rc1 Qd7 Re8 Rh6 Re7 Qe8 Nf4 g2 Bd4 g1Q Ng2 Rg6 Bb2 Rg3 Ba1 Nh6 g8R Ng4 Rh8 Ne5 Rh7 Bh6 f8R Qf7 Rfe8 Nd7 Bb2 Be4 Ba1 Rc3 Bb2 Qg8 f7 Qg7 f8Q Qf7 f6 Bh3 Qh8 Qd4 Rg1 Qdd1 Re5 Qa1 R8e7 Bf3 Bc1 Be4 Bg5 d4 Nd5 Qg6 f7 Bf3 f8Q Qf7 Rb1 Be4 Bf6 Bf3 Kg3 h4+ Kh2 Be4 Rc1 Qd1 Qc8 Bg7 Rhh5 Be6 Qc4 h3 Re8 Qe2 Qb5 Bf3 Kg3 h2 Qhh7 Bf8 Bh8 Beg4 Qh6+ Be6 Qf4 Bh3 Rh7 Bh6 Kh4 Be4 Ne1 h1B Qh2 Bhf3 Qb4+ Nc5 R8e6+ Kd7 Ng2 Kd8 Ne7 Ke8 Nd5+ Kf8 Re7 Nd7 Re8#
1RbR2r1/QnPBR1NK/pnQRb2N/1rRp3p/7N/5rk1/5q2/n5Q1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Bg7 h4 Kf7 f4 Ba6 f5 Nc6 Bf4 gxf4 g5 Ke8 g6 Bh6 Nh3 Bc8 Ng1 Bg5 hxg5 Nb8 Kf2 e5 Kf3 d5 Kg4 Kd7 Kh5 Kd6 b4 h6 c4 d3 g7 a6 Kg6 d2 f7 h5 f8Q+ Qe7 c5+ Kd7 b6 f3 f6 Ke6 f7 e4 b5 Ke5 c6 Kf4 c7 f2 b7 e3 b6 e2 Nc3 e1N Ra5 Bh3 Nb5 Kg3 Nf3 Nc2 Qe8 Ra7 f8R Qa3 Qc6 Bg2 Nbd4 Nh6 g8N Qe7 Rc5 Qe2 Nh4 Nf7 Nh6 Na1 Ne6 Bf3 Bh3 Qe3 Re1 Nd8 Rf6 Nd7 b8Q f1R b7 Bg4 Qc1 Ra8 Qa7 d1B Kg7 Rf8 g6 Rb8 Kh7 Bc2 Qd1 Bcf5 Qd4 Qd2 Qg1+ Qg2 Re5 Rb1 Re4 Nb6 Re5 Rc8 b8R Nb7 Re2 Rb5 Re4 Be2 Re5 Bfg4 g7 Bd3+ Rg6 Rf3 g8R Bf5 Ng7 Rd8 Rf8 Bc8 Re7 Re8 Rd6 Bgd7 Rf4 Rg8 Rf8 Bg4 Rfd8 Bgd7 Qf1 Qf2 Qh1 Be6 Qe1 Bf7 Bd7 Be6 Qg1+
n2BB3/3BqB2/2Qk3p/2r1NQb1/2r2qn1/KRnp1NN1/bP3p1B/3Q4 b - - 0 1 legal: proof: e4 d5 f4 e5 h4 Bd7 Bd3 Na6 fxe5 Nb8 e6 Bc8 e5 Bd7 Bg6 Bc8 Be4 dxe4 a4 g5 hxg5 c5 d4 b5 axb5 Qd6 d5 Qc7 Ra4 Qd8 Rd4 cxd4 Kd2 Ke7 g4 a5 c4 f5 Kc2 a4 g6 f4 g7 f3 g5 e3 d6+ Ke8 c5 a3 Kb3 a2 c6 a1Q d7+ Ke7 b6 e2 g6 e1N c7 h6 b7 f2 Ne2 Nf6 g8Q Qa5 g7 Qa6 Bf4 Ra7 Ng3 Ra8 Qh7 Ng4 Rh3 Nf3 Nd2 Ng5 Qf5 Ne4 g8B Qd6 Bf7 Nc3 Nf3 Na6 b8N Bb7 c8Q Bd5+ Qc4 Q6c7 Ka3 d3 Rh4 Bg7 Qc6 Ba2 Rh5 Qe8 Rg5 Bf6 d8B+ Kf8 Rh5 Bg5 Rh4 Ra7 Rh5 Rb7 Rh4 Rb4 e7+ Kg7 e6 Rc4 Nd7 Rg8 Bd2 Qf4 Nde5 Nc7 Rh5 Qd7 e8B Na8 e7 Qb7 Bd7 Qc7 e8B Kf8 Qa6 Rg6 Bc1 Rgc6 Bd2 R6c5 Qc6 Qd6 Be3 Qe7 Rh4 Qd4 Bf4 Qe4 Nf1 Qd4 Bh2 Qf4 Ng3 Qd6 Rh5 Bh4 Qh7 Rb5+ Qc5 Be7 Nc6 Qdf6 Rd5 Qe6 Rd6 Bg5 Qhf5 Qee5 Qb6 Rbc5 Qb5 Qe6 Nce5 Qf6 Rb6 Qd6 Bc7 Ke7 Qc6 Qe6 Rb3 Qd6 Bb6 Qe6 Qce4 Kd6 Bd8 Qe7 Qc6+
5BKN/P3B1N1/rb2R1Qp/B1qBp3/3B1p1q/4n1bN/1r1n1k1b/Q6Q b - - 0 1 legal: proof: b4 d5 e4 f5 f4 fxe4 c4 a5 cxd5 g5 bxa5 Bd7 f5 Be6 a3 Bc8 g4 Bg7 a4 Bb2 Ra3 Ra7 Rf3 Ra8 Rf4 gxf4 Qb3 Be6 Qd1 Bf7 h3 Bh5 g5 Bg4 hxg4 Bg7 Nh3 Bh6 Ng1 Bf8 Kf2 Kd7 d4 Kd6 a6 c5 a5 b5 f6 e5 g6 b4 g7 e3+ Kf3 e2 Ke4 e1B Kf5 b3 a7 c4 f7 c3 a6 c2 g5 b2 g6 Bc3 Rh6 Be1 Nh3 Qe7 Na3 b1Q Bg2 Qb3 Be3 c1B Nc2 Bb2 Qa1 Nf6 g8Q Qa2 g7 Kc7 d6+ Kb6 d7 Qc5 d8B+ Qc7 d5+ Bc5 Ke6 Nbd7 f8B Ng4 Kf7+ Ndf6+ Bde7 Bg3 Bd4 Ne3 Qh1 Qa3 d6 Ne4 Re6 Nd2 Bd5 h6 d7+ Kb5 d8B Bb6 Qh7 Qac5 g8N Bc3 Kg7 Bh2 Qg6 Qd7 Bc7 Qd8 Qa1 Rb8 a8Q Bca5 Bb3 Bb4 Q8h1 Bc3 Bd5 Ra8 Bed6 Qh4 Ne7 Rh7+ Kg8 Rb8 Be4 Kc4 a7 Rf7 Bb7 Rf5 Ba8 Kd3 Bd5 Ke2 Bd8 Rf6 B8c7 Nef1 Ne3 Rb7 N3f5 Ne3 Ng7 Bca5 Ng5 Kf2 Bd8 Nb3 B6c7 Be1 Bd6 Nd2 Nh3+ Ke2 B8c7 Beg3 Bd8 Qb5 Bb4 Qc5 Ba5 Rb8 Qg5 Rb7 Ng6 Rb8 Bde7 Rb7 Ng1+ Kf2 Nh8 Bd8 Qg6 Rb2 Rb6 Re6 Rb4 Ra6 Rb6 Bc7 Re6 Bb6 Nh3+
1n2KQ2/5rr1/1P2QN1B/1QR4R/1p3R2/1r1pRNbp/1kb3qR/1b3Nq1 b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 f5 exf5 c6 b6 Bh6 b7 Bf8 b4 Bh6 d4 Bg5 c4 Qa5 c5 Qa2 b5 Bh6 b6 Bf8 Bb5 cxb5 d5 Nc6 dxc6 Qc4 Qd3 Qf4 Qb3 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 a5 Kd5 h5 b8N e5 f4 e4 g4 e3 c7 b4 c6 h3 Ra3 h2 Qb3 h4 Ra4 e2 Ra3 e1R Nd2 a4 Ngf3 h3 Nf1 Re7 Kd6 Rhh7 Qc4 Rhf7 Re3 a3 Qb5 a2 Bd2 Ba6 c8Q a1Q c7 Bb7 Bc1 Be4 Bd2 Ra3 g5+ Kg7 g6 Kf6 g7 Rb3 Bc1 Bb1 Bd2 Qb2 Bc1 Qg2 Bd2 Nh6 g8R Ng4 Rg5 Ne5 Rh5 Nc6 Bc1 Bh6 Bd2 Qdg8 Qe8 Q2g7 c8R Qg2 Kc7 d5+ Nd7+ Kg7 Bc1 Nb8 Kd8 d4 Nf6 Bg5 Rc5 Bh4 Bd2 Bg3 Bc1 Qh7 Qed7 Qg6 Qe6 Ra7 Ke8 d3 Rg1 h1B Bd2 Qh2 Rg2 Qg1 Rh2 Qg4 Ne1 Bd5 Bc1 Qe2 Nf3 Rab7 Nd7 Qeg2 f6+ Kg6 Bd2 Ra3 Bc1 Bb3 Bd2 B3c2 Bc1 Rh7 f7+ Kg7 f8R Rb3 Nf6 Kg6 Qec4 Rhf7 f5+ Kg7 Nd5 Ra7 f6+ Kg6 Bd2 Rg7 f7 Rc7 Rh4 Kf5 Rfh8 Rb7 f8Q+ Rbf7 R8h5+ Rg5 Re6 Bd6 Re2 Bg3 Be3 Ke6 Re1 Rgg7 Bh6+ Qe2 Ng5+ Ke5 Qg4 Qe4 Qe6+ Kd4 Nf6 Rg6 Rf5 Kc3 Re3 Rgg7 Rc5+ Kb2 Rf4 Qeg2 Nf3
2rR1BQ1/KpbbQB2/nQN1Q2B/2r4p/5R2/R2bP2r/k2p1q2/4Q1q1 b - - 0 1 legal: proof: g4 e5 d4 exd4 b4 g5 Na3 f5 Nb5 c5 bxc5 Nc6 h3 Ne5 gxf5 Ng4 Rh2 a6 Rh1 axb5 Be3 b4 Bc1 N4h6 h4 g4 Bh3 Nf7 Bf1 Ng5 hxg5 Qb6 Qd3 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 d5 c4 h5 a4 b3 f4 b2 c6 b1R a5 g3 a6 g2 c7 Rb4 a7 Rb1 g6+ Ke7 c5 Qe8 c6 Kd6 f6 Kc5 f7 Kb4 f5 Nh6 f6 Qe6 g7 Nf5 g8Q Qd6 Ra3 Rh6 Rh4 Rg6 Bh6 Be6 c8R Rg3+ e3 Rh3 c7 Ng3 Rd8 Qf4 c8Q Rc1 Nf3 g1Q Ne5 Bd6 f8B Qff2 f7 Rc5 Rf4 Ne4 Rb3+ Ka4 Qe2 Bc7 Qe1 Bd7 Qg6 Rb8 Qb6 Ra8 Nc6 Rb8 Rb1 Ka3 Rb3+ Ka2 a8Q+ Ra5 Be2 Nc5+ Kd2 d3 Kc3 d2 Kb4 d1B Bc4 d4 Qaa6 Ra3 Kb5 d3 Qa8 d2 Bd5 Bf5 Qe6 Rc8 Qb8 Bdg4 Bc4 Be5 Q8c7 Bd6 Qce7 Na6 Q6d7 Ra4 Qd4 Nb8 Kb6 Be4 Bfg7 Be5 f8Q Bd3 Qg8 Be6 Bf8 Na6 Ka7 Bc7 Qb6 Ra5 Qdd6 Bd7 Bf7 Rg5 Qde6 Rc5 Ra3+
1N4K1/8/1R1Qrp2/1b2B1n1/b1b1QpBk/1r1BB1np/B4P1r/1nR1RQ2 b - - 0 1 legal: proof: g4 e5 d4 b5 a4 c5 axb5 cxd4 h4 f6 g5 Ke7 Na3 Qe8 Nb1 Qf7 g6 Ke6 gxf7 g5 Nc3 g4 Nd5 Bh6 Nf4+ exf4 Nf3 Ke7 Ng1 Bg5 hxg5 Ba6 Rh2 Bb7 Rh1 Bc8 Kd2 h5 Kd3 a5 Kc4 d3 Kd5 d2 e4 g3 b4 h4 c4 a4 b6 a3 b7 a2 c5 g2 g6 Nc6 b8R Nd8 g7 Ra6 c6 Ne6 b5 Ng5 b6 Nh6 g8B Nf5 b7 Ng3 c7 Re6 Nf3 g1N e5 N1e2 Nd4 h3 Rb1 a1R Nc6+ Kf8 Rg1 Kg7 f8Q+ Kg6 Qd6 Kh5 Qe1 d1B Be3 Ba4 Rc1 Kh4 Bf7 Re7 e6 Bb5 Bg8 Re8 e7 Rb1 Qd1 Rb3 Bf7 Reg8 e8Q Rh7 Qe4 Nc3+ Kd4 Rgg7 Bd3 Nb1 Kd5 Rh8 Rf1 Re8 Re1 Re6 Qe2 Rg8 Qf1 Rg6 Ra8 Rg7 b8B Bca6 c8B Rg8 Bc7 Rg6 Nb8 Bc4+ Kd4 Bab5 Ra6 Rg7 Rb6 Rg6 Qb4 d5 Be5 Rg7 Qd6 Rg8 Kc5 d4 Bh5 Rg7 Bg4 Rg6 Bb7 Rg8 Bd5 Rg6 Bde2 d3 Kd4 d2 Bd3 d1B Kc5 Ba6 Kc6 Bc2 Kd7 Bab5+ Qc6 Rd6+ Ke7 Re6+ Kf8 Ba4 Bde2 B2d3 Qd6 Bcb5 Bc4 Rg7 Bd5 Bdc4 Bd3 Rb4 Bc2 Ne2 Bf5 Bcb3 Nd7 Nf3 Red1 Rg2 Nb8 Rh2 Kg8 Ng5 Re1 Ng3 Bg4 Ba2 Bc4 B2b3 B4d3 Bd5 Bb3 Bdc4 Ba2 Rb2 Qc5 Rb3 Qd6
1k2BQn1/bn2n1R1/NR1N4/p1N2Q1q/2R2p2/4p2n/nKb1R1P1/2R1r2Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 h4 a5 b3 Bd7 Bb2 Bc8 Be5 Ra6 Bf4 gxf4 Nh3 Rg6 Ng1 Rg5 hxg5 Bd7 Rh3 Be6 Rh1 Bc8 d4 Kd7 Kd2 e5 Kc3 h5 d6 c5 b6 c4 f6 e3 b4 e2 g6 e1N d5 h4 b5 h3 f7 h2 b7 e4 g7 e3 b6 Rh7 Ra2 Rh4 Re2 Ne7 g8R Na6 b8R Rh5 b7 Qe8 Nh3 Kd8 d7 Kc7 d8R Nc5 Kb2 Bf5 Nf2 Rh6 Nd3 Nc2 Rg7 Nb4 Nd2 Ng8 Ne4 Nc6 Nd6 Nce7 Rg1 h1N Rdc8+ Kb6 Rc6+ Ka7 Rb6 Bg6 Rc8 Nf2 b8N Nb7 Nc5 Rh1 Nba6 Bc2 Qd3 Nh3 Qf5 Nc6 Rc7 Be7 f8Q Qh5 Nf7 Bd8 d6 Nce7 d7 Ka8 Nd6 c3+ Ka1 Ka7 Rc8 Bc7 d8Q Bb8 Qde8 Ka8 Qeg6 Ka7 Qh6 Ka8 Re1 Ka7 Bb5 Ka8 Re2 Ka7 Rd1 Re1 Be8 Ka8 Rcc6 Ba7 Nc7+ Kb8 Rc1 Bb3 Kb1 c2+ Kb2 Ba4 Rd1 c1N N7a6+ Ka8 Qhh7 Na2 Rc1 Bd1 Ne6 Bc2 Rc4 Qf3 Qh4 Qh5 Nec5 Ng5 Nc7+ Kb8 Qh1 Nh3 N7a6+
R2N2n1/R2N1Qn1/n4Qp1/3Q1Pq1/Q3R1pk/Bp5n/3bbr2/KbQ4N b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 Nd7 g4 Nb8 b4 axb4 f6 Ra7 Ba3 Ra4 Bc1 Ra8 f4 b5 f7+ Kd7 g5 h5 f5 Ra3 Be2 Ra6 Bg4 Rf6 gxf6 hxg4 h4 c5 d4 e5 Kd2 e4 Kc2 g6 Kb2 b3 a4 b4 a5 e3 h5 c4 h6 e2 d6 e1N a6 Be7 f8Q Qb6 h7 Qc6 d5 Qb7 a7 Bd8 a8Q Ng2 f7 Na6 Na3 Ba5 Ne2 Nf4 Ng3 Ne6 Re1 Ng7 Nh1 c3+ Kb1 b2 Re4 Qc7 Nc4 c2+ Ka2 b1B+ Kb2 Ne8 Ne5+ Kd8 d7 b3 Ra3 Bd2 Ka1 Qc6 Qh6 Ke7 d8R Kf6 d6 Ng7 d7 Qa4 Bb2 c1N Ra2 Ne2 Ba3 Qc4 f8Q+ Qf7 Re8 Ng1 d8N Nh3 Qc1 Be6 Qf4 Bc4 Qd5 Bf1 Re7 Be2 Qe8 Qe6 Ra7 Qb6 Qa4 Qe3 Qf2 Kg5 Nd7 Kh5 Qh2 Kg5 Qhc7 Kh4 Qcb7 Qg5 Qf7 Nh6 Qbd5 Re8 h8Q Re7 Qhe8 Ng8 Qf6 Re6 Qef7 Rd6 Qdc5 Rd3 Qcd5 Rf3 Rc2 Rf4 Rc8 Rf2 Rca8
1rb3R1/Q3Bp1q/RR2n3/2Q1Kpnr/4RP1p/8/nk2NrRB/4BrQ1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 g4 h4 Kd7 f4 Nc6 Nc3 Ke8 Ne4 Nb4 Nf6+ exf6 g3 f5 Bg2 Be6 Bf3 gxf3 g4 Na6 g5 Be7 g6 Bg5 hxg5 Nb8 Ra6 Bd7 Ra1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 e4 a5 b4 c6 b6 a4 b5 f2 b7 f1N b6 a3 e5+ Ke7 e6 Kd6 g7 h4 g6 a2 e7 Ra3 e8R Rh5 Rh2 Rh8 Ne2 Nf6 g8R Ra8 g7 Nbd7 b8R Nf8 b7 Ng3 Qc2 Rh7 Re4 Rh5 Rg2 N6h7 d3 Qg5 Be3 Qg6 Bg1 Ng5 Bh2 Qh7 Qc4 Nh1 Qc3 Nf2 Qc2 Nd1 Qc5+ Kd7 d6 Nfe6+ Ke5 Nc3 Qa7 c5 d4 Kc6 d5+ Kb5 d7 c4 d8B Kb4 d6 Kb3 d7 Kb2 Qc5 Nc7 Be7 Nce6 Rf1 a1R d8B Rb1 Ba5 Na2 Be1 c3 Rf3 c2 Ra3 c1R Ra6 Nh3 Rh8 Ra1 g8Q Rc2 Qg4 Nhg5 Rg8 Rc3 Qg3 Rf3 Qgf2 Rb1 Qg1 Rf2 Rg6 Bd7 Rbg8 Bc8 b8Q+ Nb4 Qbc7 Rb8 Q7a7 Na2 Bb4 Rbf1 Be1 Ng7 Rgc6 N7e6 Rcb6+
Bq3qNN/6k1/2b5/p1N5/nQ3Q1K/bq2rPr1/BqQQp1pB/1R3Q2 b - - 0 1 legal: proof: a4 b5 axb5 g5 c4 d5 cxd5 g4 g3 Bg7 Bg2 Be6 Be4 Bf8 Bd3 Bd7 Qb3 Bf5 Kd1 Bc8 f3 gxf3 Kc2 f2 Kc3 Be6 Qd1 Bd7 Kc2 Bc8 b4 f1Q g4 h5 g5 f5 Qe1 f4 Nh3 f3 Qd1 f2 Ng1 Nc6 Ra3 Ne5 Rc3 Rh6 Rc4 Nf3 exf3 Rh8 Rg4 hxg4 h4 Kf7 g6+ Kf6 h5 e5 d6 a5 g7 c5 b6 g3 h6 c4 h7 c3 b7 e4 b8Q e3 b5 e2 b6 g2 b7 Qb6 d7 Qa6 d8Q+ Kf7 Qf4+ Bf5 b8Q Qb7 Be4 Qb5 d4 Qb4 Kd3 c2 Ke3 Bd6 d5 Qb7 Nc3 Ra6 Nh3 Qc6 Na4 Rb6 Qdc7+ Qd7 Nc5 Ne7 g8B+ Kg7 Ng5 Qd8 Nf7 Qf8 Nh6 Bd7 Rg1 Rb1 Qb4 Nc8 Be6 Nb6 Ng8 Be7 d6 Na4 Ba2 Bc6 d7 Ra1 Qdd2 Qd1 d8Q f1Q Qe1 Rb1 Qdd2 Rb2 Bed5 Rb3+ Ke4 Qf2 Qf1 Qg3 Ba3 c1Q Ke5 Bd7 Ba8 Bc6 Qc8 Qb2+ Ke6 Qd8 Kf5 Re3 Rh1 Qh2 Kg4 Qdb3 Qcf5 Qb8 Qfc2 Qh5+ Kg3 Qhf7 Rg1 Bf8 Kh4 Bd6 Qf2 Qf5 Rb1 Qff8 Qf1 Be7+ Nf6 Rg8 h8N Qa1 Bb2 Bd6 Be5 Qab2 Qfe4 Kh6 Bh2 Rg3 Ng8+ Kg7 Nb7 Bc5 Qf4 Bd6 Qbc4 Bb4 Nc5 Ba3 Qcb4
K2BQ1Nq/2Qq1Qnb/6p1/R2Pn3/Q1pR4/3n3n/5krp/NQ1Rb1N1 b - - 0 1 legal: proof: h4 a5 c4 b5 a4 e5 axb5 d5 e3 e4 h5 g6 h6 Ra6 cxd5 Ra7 d4 Rb7 Bd3 exd3 Rh5 Rb6 Rh4 Re6 Rh1 Re7 g3 f5 g4 Rg7 hxg7 fxg4 Kd2 Kf7 Kc3 Kf6 Kc4 Kg5 b4 c5 f4+ Kf5 d6 Ke4 f5 h5 d7 g3 b6 g2 Kb5 a4 f6 a3 b7 d2 f7 c4 Qa4 d1Q Nd2+ Kd3 e4 Ke3 e5 h4 e6 a2 e7 h3 e8Q+ Kf2 Nb3 Nc6 Ka6 Nf6 g8N Nh5 b5 Ng7 b6 Bb4 Bg5 Ne5 Ka7 Be1 b8Q h2 b7 Rh3 Bf6 Rg3 f8Q Qd3 Rd1 a1N Qc7 Nc2 b8Q Nb4 Na1 Qd2 Qff7 Nbd3 Qb1 Qb2 Nf3 g1N Ka8 Nh3 Ng1 Rg2 d5 Qe7 d8R Be6 Rc8 Qd7 Bd8+ Ndf4 Rd4 Qc3 Qfe7 Nfd3 Rb8 Bf7 Rb5 Qb2 Ra5 Be6 Nf6 Bg8 Q8f7 Bh7 Qee8 Qb6 Ng8+ Qf6 Qa7 Nf5 Qc7 Qh8 Nf3 Ng7 Rg1 Bd2 Rd1 Be1 Ng1+
1r1b2n1/2r5/3p1r2/kR1QN1B1/B2Q1R1p/1r1p1RQ1/1qPKb2B/3B1Bq1 b - - 0 1 illegal: No possible last move, all moves rejected
1Q2Rq2/R2n3P/3QbpK1/1qp4Q/5p2/r3rRbN/Q1N3kr/1r2BQ1N b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 g5 h5 Bh3 Nd7 Bg4 hxg4 g6 f6 Ra4 Ne5 Ra1 Nf7 gxf7+ Kd7 Kf2 Kd6 d4 g5 e4 a5 b4 c5 h4 g3+ Kf3 g2 e5+ Kc7 Ke4 a4 e6 Kd6 Kf5 a3 b6 a2 b5 g4 h5 g3 h6 Rb8 b7 Bd7 b6 Bb5 h7 Qc8 Rh3 Bg7 f8R Nh6+ Kg6 Nf5 e7 Qe6 e8Q Qg8 Nc3 Nh6 Qf1 Bc4 Bd2 Nf7 Nce2 Bb3 Be1 Ne5+ Kh5 Rd8 b8N Bh6 b7 Bg5 Nc6 Nd7 Nb4 Bh4 Nc2 Qg7 Rg8 Qf8 Kg6 Ra8 Qf7 Ra3 Qe8 Kc7 d6+ Kc6 b8Q Kd5 Qf7+ Ke4 Qa7 Be6 d5 Qe7 Re8 Qf8 Rb1 a1R Rb7 Re3 Qa2 Rb1 Ra7 Ra3 Rh2 Rb2 Nh3 g1R Rf2 g2 Rf3 Re3 Qb1 Bg3 Qa2 Nb8 d7 Ra3 d8Q Nd7 d6 Rh1 Qb1 g1Q Qb6 Rh2 Qa2 Rb1 Qb8 Qd4 Qab3 Qb4 Qa2 Nb6 d7 Qb5 d8Q Nd7 Qdc7 Rg8+ Kh5 Rg4 Qd6 Rh4+ Kg6 Rh5 Rc3 Rd5 Rb3 Rd3 Rc3 Re3 Rb3 Bf2 Ng3+ Kf3 Nh1 Ra4 Qfd3 Ra3 Qd1+ Kg2 Qc1 Re2 Rf3 Bg3 Qcd1 Ree3 Qc1 Bc4 Qfd5 Bb3 Qh5 Be6 Qcd1 Rc1 Q1d3 Rb1 Qf1+
1n1B2r1/Rq1Pr2q/8/p2BBk2/pQ2q3/3R2Rn/p1K1B2B/1QQNqb2 b - - 0 1 illegal: Other
2rQ4/p1nQ2q1/1BQNB2k/r3qBr1/1K3B2/P3p2n/1pBR1q2/1r2R1R1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 bxc5 e5 Nh3 e3 Rg1 e4 Rh1 Bd6 Ng1 Be5 fxe5 f5 g4 Be6 Nc3 h5 Nd5 f4 Nf6+ Kf7 Ke2 Ke7 Ke1 Bf5 gxf5 Kf8 Ng4 hxg4 Bd3 Kf7 Bf1 Ke8 d4 Kf8 c4 g5 h4 Kg7 a3 b5 e6 f3 f6+ Kg6 e7 b4 e8Q+ Kh7 f7 g3 f8R g2 c6 g4 h5 e2 Kd2 e1R h6 g3 c7 f2 c8B b3 Kc3 b2 d5 Qd6 c5 Qc6 d6 Na6 d7 Nc7 d8B Qb7 c6 Nf6 Be6 Re2 Nh3 g1R Bf4 Re1 Bd3 f1Q Nf2 g2 Bc2 Qba6 Kb4 Rc8 Qf3 Ng4 Qd7+ Kg6 h7 Qae2 Rf7 Re8 h8Q Rb1 Rf5 e3 Ne4 Nf2 Nd6 Nh3 Rd5+ Qd3 Qf8 Qf5 Rd2 Qf2 Qh8 Rg8 Qd5 Rgc1 Re1 g1Q Qf6+ Kh5 Qfe7 Qg7 Qf8 Nb5 Bb6 Qfe5 c7 Rd1 Qfd8 Rdc1 Bcf5 Rc5 Q5c6 Rd5 Bc2 Rc5 Bg3 Kh6 Rg1 Nd4 Bef5 Ne6 Bh2 Ra5 Bg3 Qh7 Bf4+ Rg5 Re1 Qhg7 Rg1 Rb8 c8B Nc7 Be6 Rf1 Re1 Ra8 Ree2 Rb1 Ree1 Rb8 Ba6 Ra8 Bad3 Rc8 Bdf5
k1Bb4/B3Q3/r2Q1Q2/2B2q2/r1pK1RN1/1QRbQ1P1/p1Rp2qp/1n1n4 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 a4 Kf7 axb5 Ke8 h4 gxh4 d4 e5 c5 d6 Nd2 Qe7 Nb3 Qg5 cxd6 Qf6 d5 Qd8 Nd4 exd4 Ke2 Kd7 Kd3 h5 b4 c5 f4 a5 g3 a4 b6 h3 b5 h4 b7 a3 b6 h2 f6 a2 f7 h3 f5 Bh6 f8Q Qe8 f6 Ra6 f7 Bg5 Ba3 Bf6 Rc1 Qe7 Qf3 Rh4 Qe3 Nh6 Rc2 Nc6 b8Q Na7 b7 Nf5 Nf3 Qe8 Ne5+ Kd8 d7 Nb5 Qbd6 Nc3 b8Q Nb1 Qb3 Be7 Kc4 d3+ Ng4 d2 Qf6 Kc7 d6+ Kc6 d8B Qd7 Bb6 Kb7 Ba7+ Ka8 Q8g7 Bb7 f8R+ Bd8 Qge7 Be4 Bd3 Qc8 Rhc1 h1Q d7 h2 Rc3 Qg2 R1c2 Qf2 Bf1 Bd3+ Kd5 Qe2 Bh3 Qg2+ Ke5 c4 Qfd6 Ra4 B3c5 Rh6 Rf6 Nh4 Rf4 Nf5 Qdd4 Rha6 Qdd6 Ba5 d8Q Bb6 Qg8 Bd8 Qgf8 Qd7 Qff6 Qb5 Qf2 Ne3 Kd4 Nd1 Qfe3 Qa5 Nf2 Qb5 Bc8 Qd7 Ng4 Qe6 Ba3 Qf5 B3c5
q1B1b2b/1N1Q3N/p2QKpQ1/1B2p2n/rB1PB3/1pp2R2/1bk1N1nB/8 b - - 0 1 illegal: No proof kernel
NQNb4/4pppK/np5Q/BQb4p/b1R4P/1B5N/k4r1Q/1n1Qr2B b - - 0 1 illegal: No proof kernel forced: wxDB
3Rn3/1rnn1R1p/2rb2R1/1Qbb4/N1Nk4/NRQ1qn1r/4B2P/R2KQ2n b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 e4 Kd7 d4 Kd6 g4 f5 b6 a5 b4 c5 b7 f3 g5 c4 b5 c3 b6 f4 g6 a4 g7 a3 Bh3 f1N Qe2 c2 Qd2 a2 Na3 f2 Qe1 f3 Ne2 Qe8 Nc3 Nd7 b8R Bb7 Bg4 Ne3 Na4 Ngf6 g8R f1N Rg6 f2 Be2 Nd2 Rf1 Nf3 Qc3 Bc6 b7 Qe6 Qe1 Ne8 Qc3 Rg8 Qe1 Rg7 e5+ Kc7 Qc3 Bd6 Qe1 Qh3 e6 Bc5 Qc3 Kd6 e7+ Qe6 Rc8 Ra7 b8Q+ Rc7 Qb6 Rb7 Qb5 Rf7 Qe1 Rf4 Ra8 Rh4 Rb8 Rh3 Qc3 Nc7 e8Q Nf5 Rh6 Ng7 Rg6 Qf6 Qee3 Qe6 Qe1 Nge8 Q3c3 Ng5 Kd2 c1B+ Kd1 Bf4 Rc1 Nf3 Ra1 Ke7 d6+ Kf7 d5 Qe3 Rfg1 f1N Rh1 Ng3 Rf1 Nh1 Rf2 Nf8 d7 Bfd6 d8N+ Ke7 Nf7 Nd7 Rb1 a1R Ne5 Ra2 Ra1 Rc2 Nec4 Kf7 Rf6+ Kg7 Rf7+ Kg6 Rf6+ Kg5 Rg6+ Kf5 Rf1 Ke4 Rf2 Bf4 d6 Bd5 Rf1 Nf8 d7 Bfd6 d8R Nd7 Qcb4 Kd4 Q4a5 Nh4 Rf7 Nf3 Qc6 Ra7 Rb3 Rb7 Qcb5 Bb6 Nd2 Rc6 Ndc4 Bbc5 Qac3+
n1R2Qk1/Br1q1rr1/3p2q1/1r1Rnr1Q/4q1QR/3P1Q1K/b1Q1B3/N2Bb3 b - - 0 1 illegal: No possible last move, all moves rejected
K3bqk1/B2Qn1rR/R5nB/NQb2p2/Q4PB1/1bRbb3/1B3B2/b3rb2 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 Kd2 f5 Kd3 Kf7 Kc4 c5 b4 a5 g4 h5 e4 d3 f4 h3 e5 h2 b6 d2 Kb5 h4 b7 h3 d7 c4 g5 c3 e6+ Kg7 d6 a4 e7 a3 e8Q a2 g6 c2 Nf3 Be7 Nd4 Rh5 Bb2 c1B Nb3+ Nf6 Na5 Rh7 Qa4 d1B Be2 Rh8 Bg4 Nc6 b8B Bb3 Ba7 Ne5 Bf2 Be3 Rhc1 h1B Rc3 Bg2 Rh1 Nf3 Kc6 a1B b5 h2 b6 Ra7 b7 Nd5 b8B Nh4 Qb5 Rb7 Ba7 Bf1 Qa4 Bf8 Qb5 Qe7 d8B Kg8 g7 Ng6 d7 Qf7 Qe4 Bfc5 Qea4 Qf8 Bg5 Rh7 d8Q Re7 Qc7 Bd7+ Kb7 Be8 Ka8 Re4 Qd6 Nde7 Bh6 Re6 Qdd7 Re4 Rg1 h1B Rg2 Bd3 Rh2 Bg2 Rh4 Bgf1 Rh5 Kf7 g8R Rg7 Rh8 Re5 Rh7 Kg8 Rg5 Bd2 Rh5 Re1 Rh3 Bc1 Re3 Bd2 Re6 Bde3 Ra6
3NB1rR/8/p1rRQ3/k1n1bqQ1/r3rR1r/P1n1N3/n4r2/Qb1NKRR1 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 f4 b5 h4 d5 e4 Kd7 c4 Kc7 a3 g5 c6 Kb6 f5 d4 c5+ Ka5 c7 g2 f6 b4 c6 g3 e6 g4 e5 d3 f7 b3 h5 b2 e7 Bg7 f8R Nd7 e8N Nc5 h6 Ne7 e6 Nd5 h7 Nc3 e7 Qd5 Rh6 Be5 Nh3 g1R Ng7 g2 e8Q g3 Nf2 Na2 Qd8 Bf5 Nd2 b1R c8Q+ Rb6 c7 Rc6 Qg5 a6 Qe6 Re8 c8R Rh1 Qgg4 g1R Qg5 Rg8 h8R g2 Rb1 Be4 Rf4 Rh4 Ra8 Re7 Raf8 Rgh1 Qc1 g1R Nd1 Rgg4 R8f6 R1h2 Nc4+ Ka4 R6f5 Rf2 Nce3 Ka5 Qb2 Ree8 Qa1 Re7 Rf8 Bh7 Rg6 Qe4 Rd8 Qf5 Rd6 Ree8 Rf3 Ra4 Rf4 Rb8 Be2 Rbb4 Bh5 Rd4 Rf6 Re4 Be8 Bg6 Qc4 Bh7 Ne6 Bg6 Nd8 Bh7 Nb2 d2+ Kd1 Qe6 Rg6 Qf7 Qf5 Rd4 Rg1 Qf8 Qh5 Bd3 Qcf7 Re4 Qe6 Qf5 Qg5 Be2+ Kc2 d1N Kd2 Ndc3 Rbf1 Bd3+ Ke1 Bb1 Nd1
b1nrn2b/Q5Q1/1np1Rb2/N1r4N/q1brrR2/2P1N1N1/6R1/1NkBQ2K b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 e4 Ke7 f4 Ke6 b4 a5 h4 d5 b6 g5 b7 a4 h5 g2 Kf2 a3 b5 d4 h6 a2 h7 c6 b6 d3 Qd2 g3+ Kf3 Ra4 Rh6+ Nf6 Qc1 d2 Ne2 g1N+ Kg2 d1B Kh1 Nd7 b8Q g4 b7 Bg7 Qa7 Nf3 b8N Nd2 Na6 Rd4 Nb4 Nb6 Nd5 Ndc4 Ne3 Bb7 c3 Qa8 Rg6 Rhd8 h8Q Bb3 Qe1 Nc8 Qh7 Bh8 Qg7 N4b6 Bg2 R4d7 Bf3 Bc4 Rh6 Re7 Rh2 Ne8 f5+ Kd7 e6+ Kd6 f6 Kc5 f7 g2+ Kg1 Red7 f8R Rd4 e5 Re4 e7 Kb5 Qa3 Qa4 e6 Ba8 Ng3 Ka5 Rh6 Red4 Kh2 g1R Bd1 Rh1+ Kg2 Rh5 Rf4 Rc5 Kh1 Re4 Rh2 Kb5 Rg2 Ka5 Nd2 Rdd4 Rc1 a1R Nb1 Ra2 Rcc2 Rb2 Rce2 Rbd2 Qa2 Rd8 Qa3 R2d4 Qa1 Nf6 e8N Kb5 Ngf5 g3 e7 Ka5 Ned6 Ne8 Nb7+ Kb5 Qf8 Bf6 Na5 Bh8 Rgf2 Bf6 Qg7 g2+ Kh2 g1B+ Kh1 Bh2 Rg2 Bg3 Qa3 Bgh4 Ng3 Bhg5 Qh6 Bh8 Qg7 Bf6 Nb7 Qb3 Qa7 Qc2 Na5 Ka4 Nd2 Ka3 Nb1+ Kb2 Qh7 Ned6 e8N Kc1 Ng7 Ne8 N7h5 Qa2 Qhg7 Qa4 Rb2 Rf5 Rb5 Rg5 Re5 Rf5 Re7 Rc5 Re6
1BQR4/1prNrN1p/1Qn3n1/5B1q/QnqNQ2P/4K3/r1bQ3B/k1b4b b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 a4 g5 f4 Bh6 f6 Ra5 f5 Ra8 Ra3 Bg7 Rf3 Bf8 Rf4 gxf4 Kf2 Kd7 h4 Kd6 d4 e5 g4 c5 g5 e4 f7 b3 f6 c4 g6 c3 g7 c2 a5 f3 a6 b2 a7 Qb6 Nh3 Nh6 g8Q Qc7 Nd2 b1B Nb3 Nc6 Qe1 Be6 Ke3 f2 Ng5 Qa5 Bh3 f1Q Bf5 Qc4 Bb2 Rc8 a8Q c1N Qa7 Be7 f8N Nf7 Nd7 Rc7 Qc8 Nfe5 f7 Ncd3 f8B Ndb4 Rh3 Qac5 Qa4 Bc2 Rh2 Bg8 Rd2 Ng6 Bg7 Bf8 Bf6 Bh6 Be5+ Ke7 Bh2 Be6 Nb8 Kf6 d6 Bd5 d7 Re8 d8Q+ Ree7 Rd3 Qa5 Qe8 Qac5 Qd2 Q5b5 Ke2 e3 Nf7 Bh1 Bc1 Bg5 d5 Bf4 d6 Qe5 Bg4 Qh5 d7 Bh6 d8Q Bg5 Kf1 e2+ Kf2 e1R Nd4 Bf4 Bb2 Ra1 Bf5 Ra2 Ba1 Rd7 Qb6 Rc7 Nh8 Ke5 Nf7+ Kd5 Nd7 Bh6 Qe2 Bc1 Qed8 Qc5 Qe4+ Kc4 Bc3 Qb5 Bd2 Qc5 Bdf4 Qb5 Rd2 Kc3 Ke3 Kb2 Bfg3 Re8 Qg5 Qc4 Qf4 Ka1 Qf2 Bb2 Rd1+ Bc1+ Qd2 Re7 Bf4 Na7 Bd6 Rc6 Bb8 Rc7 Rg1 Nac6 Rg4 Nge5 Rg8 Ng6 Rd8
R1QR4/1rnn1Qn1/2R2p2/3b1P2/3k1qB1/Q1pn2b1/BRKBr2N/bn1R4 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 Kd2 Kd7 g4 c5 b4 h5 e4 a5 f4 c4 e5 h3 g5 h4 b6 f6 b7 d3 b5 a4 f5 a3 b6 h2 g6 a2 g7 h3 Nf3 Rh7 Ng1 Ne7 g8B Qc7 Rb1 a1B Qb3 Ra2+ Kd1 Re2 Rb2 d2 Kc2 d1N+ Bd2 Nc3 Nf3 Nb1 Qa3 c3 Rg1 h1N Nh2 Nf2 e6+ Ke8 Bg2 Nd7 b8Q Nd3 b7 Qc4 Qba7 Qf4 b8Q Bh6 Qbc7 Bb7 Bf3 Bg5 Qc6 Bh4 Bg4 Bg3 Rd1 Kf8 Nf3 h2 Qc8+ Kg7 Bf7 h1N Nh2 Kh6 Bg8 Kg5 Bf7 Ng6 e7 Ngf8 e8R Ne6 Re7 Nc7 Re6 N3c5 Bg8 Nf2 Bf7 Nfd3 Bg8 Nb8 d7 Bc6 d8R Nbd7 d6 Bd5 Re4 Rf7 Rc4 N5e6 Rc6 Ng7 Re8 Qe3 Qab7 Kf4 Rf8 Ke5 Qba7 N7c5 d7 Kd4 d8R Qf4 Qab7 Nd7 Qbb3 Be4 Qe6 Bf3 Qe8 Rfe7 Ba2 Bd5 Qf7 R7e6 Ra6 Rb6 Rfe8 Rb3 Ree6 Rb6 Rc6 Rb7 Ra8
1r1rQRqB/1pQ3Qr/2b1p1Kn/qQb1P3/2nr1N1Q/R6B/2k1RB2/2r5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 g6 f5 Bd7 Na3 Be6 Nc2 Bd7 Ne3 Be6 fxg6 Bd7 g5 Bc8 Ng4 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 h4 Kc4 d4 Kc3 e4 c5 a4 f5 a5 c4 e5 e6 a6 g3 h5 g2 d6 b3 h6 b2 d5 b1R a7 Rh7 g7 Rb4 g6 Nf6 Kg5 f4 g8Q f3 d7 f2 g7 Na6 d6 Nc7 Be3 Na6 Rh2 Rb8 a8R Ng4+ Kg6 Nc7 Qb1 Nd5 Nh3 g1Q Nf4 Qa5 d8Q Bd7 Qh4 Nb6 Bh3 f1R Re2 Rd1 Bf2 Bc6 d7 Bc5 d8Q Rd3 Qc8 Rd8 Qe8 Qg2 Qf1 Kb3 g8Q c3 Qc7 c2 Ra2 Rbd4 Qgg7 Nc4 Qb1+ Kc3 Qb5 c1R Ra4 Rh8 h7 Qg3 Re1 Kc2 Ra3 Nh6+ Kh5 Rf8 h8B Rf7 Re2+ Rd2 Qgf8 Qg8 Qfe7 Rh7 Qg7 Rd4 Kg6 Qb6 R8a4 Qa5 Rf3 Rdd8 Raa3 Rd4 Nh5 Rdd8 Rf8 Rd4 Nf4 Rdd8 Re1 R2d4 Re2+
2k2NQ1/Q3Kp1b/1B2bQq1/2rR1Pb1/1RnR4/b2R4/nB2Bp1R/r2b3q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 f5 Qd7 Nc3 Bh6 cxd5 Nc6 Na4 Qd8 Nc5 Bf8 Nd3 Nb8 Nf4 exf4 Kf2 Kd7 Kf3 a5 Ke4 h5 Ke5 c5 g4 f3 d4 f2 b4 h3 e4 c4 g5 c3 b6 h4 b5 a4 d6 c2 b7 a3 d5 h2 b6 h3 g6 a2 g7 Na6 b8Q Nb4 b7 Ra3 Ne2 Ra6 Qd4 Nh6 g8Q Qe8+ Kf6 Ra7 Bb2 c1B e5 Be3 Rc1 a1Q Rc5 Na2 e6+ Kd8 Rb5 Qc6 d7 Bd2 Nf4 Ng4+ Kg5 Qb1 Be2 Ne5 Kf6 Nc4 Ng6 Ra4 Rd1 h1B Qba7 h2 b8R Bf3 Rb3 h1B Rd3 Rh3 Rb4 Bh5 Qe5 Ra3 Rd4 Bh6 R1d3 B1f3 Qd6 Rh1 Qe5 Ra5 Qd6 Qa8 Qda6 Qb7 e7+ Kc7 d8R Be6 e8R Rc5 Rd6 Qg1 Rb8 Bd2 Rdd8 Bd6 Nf8 Bg6 Ra8 Bc1 Rab8 Bdf4 Ke7 Bh7 Rd6 Qg6 Rdd8 Bd7 Qf6 Bg5 Ra8 Be6 d6+ Kc6+ d7 Kc7 Bc3 Ba3 Bb2 Ra1 Rab8 Nb6 Rd5 Bh5 Rh4 Nc4 Rh2 Kc6 R5d4 Qa8 Rb4 Bf3 Bf1 Bd1 Be2 Qb7 Rb8 Qa8 R8b5 Qb7 Ra5 Kc7 d8B+ Kc8+ Bc7 Qh1 Bb6 Rc6 Re5 Rc5 Red5
R1B2kb1/QR1nr1b1/2R1rq1Q/Q1r2R1K/p3N1N1/1prN4/RPn5/4qn2 b - - 0 1 illegal: No proof kernel
Q1n2qb1/1QkNQR1b/2q3pN/2bb4/N5p1/r1QrQ3/RnR2KP1/2n1B3 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 e3 b5 axb5 Ba6 Be2 Bc8 Bg4 hxg4 d4 Kd7 b4 c5 h4 f5 e4 a5 d6 c4 h5 f3 h6 g6 e5 f4 e6+ Ke8 d7+ Ke7 h7 Kd6 d5 c3 e7 a4 e8Q c2 b6 a3 b7 a2 b5 Kc7 d6+ Kb6 Qde2 Ra3 Q8e7 Na6 b8R+ Bb7 Bd2 c1N Kf2 Nc5 Be1 Na4 Rc8 Nb2 Nc3 Bd5 Na4+ Kb7 Q7e3 Ne7 Rc2 Nc8 b6 Be7 Rh4 Qf8 d8Q Rg8 d7 Bc5 h8Q Kb8 Rb1 a1Q b7 Rg7 Qe8 Kc7 d8N Rd7 Nf7 Qa2 Qa6 Qc4 Rh7 Qb5 Qa8 Qc6 Qc3 Rd8 Kf1 f2 Nh6+ Rd7 Q8e4 Bg8 Rf7 Bh7 Rf6 Rd3 Ra1 Na2 Ke2 f1B+ Kf2 Nc1 Ra2 Be2 Qe8 Bf3 Qe6 Be4 Nf3 Bd5 Ne5 f3 Qe8 Bdg8 Nd7 Bd5 Qe7 Bdg8 Kg3 f2 Rf7 f1B Kf2 Be2 Qe6 Bf3 b8Q+ Kd8 Qbb4 Kc7 Qe7 Bd5 Qbb7+
2b1B2b/2rq1R2/1QQBq3/1nN1pBN1/1b1pr3/kp1P2n1/NB3Kn1/Q3B3 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 f4 e5 c4 Ke7 g4 Kd6 b7 Kc5 g5 h5 g6 d5 f6 a5 g7 b3 f5 Kb4 b6 h3 c5 h4 c6 h2 c7 a4 d3 a3 f7 h3 f6 d4 Nf3 a2 Nc3 a1B Na2+ Ka4 Kf2 Be6 c8Q Ra5 Bd2 Rh4 Bc3 Qd7 Ng5 Ra7 Qc6+ Ka3 Bg2 Re4 Rf1 Bb2 Qa1 Nh6 g8B h1Q Bh7 h2 Bf5 Bg7 f8N Na6 b8Q Nc7 f7 Bh8 b7 Nb5 Qd8 Bc1 b8B Bd2 Qdb6 Rb7 Bgh3 Rc7 Bg6 Bg4 Nfe6 Nf5 Nc5 Nh4 f8B Ng2 Be8 Be6 Bf5 Qg1+ Kf3 h1N Be7 Ng3 Bf6 Rb7 Bd6 Rc7 Bfe7 Qh1 Kf2 Qh4 Nf3 Qh3 Bh4 Qd8 Ng5 Bc8 Kg1 Qd7 Rf3 Nh5 Be1 Ng3 Kf2 Qe6 Bfg6 Qd7 Rf7 Qhe6 Bf5 Bc1 Bcd2 Bb2 Nf3 Bc3 Ng5 Ba5 Bc3 Bb4 Bb2#
1BQ3b1/qnr3R1/q2bB1R1/2p2nNp/p1R1Q1R1/K1P1Q3/n3R3/bk2rB2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 gxh4 Nd2 Ke7 dxe5 Na6 e6 Ke8 e5 Nb8 Ne4 fxe4 Kd2 Ke7 Kc3 h5 Kb3 d5 f4 a5 g4 c5 b6 e3 f5 e2 f6+ Ke8 e7 Kf7 e8R Kg6 e6 e1B e7 d4 b7 a4+ Ka3 h3 b4 h2 f7 d3 b5 d2 b6 Bd7 g5 Kf5 g6 Ke4 g7 Nc6 b8R Na5 b7 Qb6 Nh3 Qa7 Rg1 h1Q Rg6 Nh6 g8B Be6 Ng5+ Kd4 Rbc8 Kc3 b8Q Rh7 Qg4 d1N Rc7 Nb7 Qe4 Nf5 Qc8 Qh2 Rd7 Qd6 Bf4 Qda6 Bb8 Bg7 f8Q Bg3 Rc1 Bd6 Rc7 Bge5 Qh6 Kd2 Bf7 Ba1 Reg8 Nc3 e8R Na2 Rd7 Bb3 Be6 Rf7 R8g7 Bc4 Rdd8 Rc7 c3 Bd5 Rc2+ Kd1 Re2 Kc1 Reg8 Bc4 Qe3+ Kb1 Qh7 Be7 Rd4 Bd6 Ne4 Bb3 Rg4 Bd5 Ng5 Bb3 Rg6 Bc4 R8g7 Bd5 Bd7 Bg8 Be6 Ng3 Rf6+ Ne4 Bd7 Be7 Qe8 Nd8 Re1+ Kc2 Qh3 Qc8 Rc4 Qca6 Qg3 Nb7 Qe5 Rc8 Bc7 Bd6 Q8e6 Re8 Qf4 Rac8 Bb8 Rc6 Qhf5 Rc7 Rfg6 Re7 Qf8 Ng3 Qc8 Nf5 Qd5 Re2 Be6 Re5 Ree4 Kb1 Qc6 Rd5 Re2 Rd1 Qe3 Re1 Qce4#
k5R1/1RKppNN1/b7/1q2n2N/r2rrR1Q/B3P1Q1/1b1R1p1q/1n1b2QR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 cxd4 Bh3 Nc6 fxg5 Nf6 g6 Ng8 g5 Nb8 Bg4 hxg4 Kd2 f5 Kd3 a5 Kc4 d3 Kc5 g3 b4 g2 h4 d2 c4 f4 h5 f3 h6 f2 e3 a4 h7 a3 b6 a2 g7 Nh6 g8N Ra3 g6 Rd3 g7 Rc3 b5 Bb7 Nf6+ Kf7 g8R Ke6 Na3 Bf3 b7 Nf5 b6 Ke5 Nh3 g1Q Ne8 Bd5 Nb5 Qh2 Qg1 d1B Ba3 Ng3 Ng7 Ne2 Nf4 Rd3 Nfh5 Rd4 Nd6 Nc6 b8Q Nc3 b7 Nb1 Nf7+ Ke4 Qd6 Ne5 b8R Bb7 Qc7 Qc8 Kb6 Ba6 c5 Kd5 Rb7 Qb8 c6 Re4 Qd8 Rd4 c7 Re4 c8R Rd4 Ne6 Bg7 Qc7 Bf6 Rg4 Rg8 Rh4 Rgg4 Rg8 Rge4 Rf4 Bh8 Qc2 Bg7 h8Q Bf6 Qe2 Bg7 Qeg4 Bf6 Ka5 Kc6 Q4g3 Bg7 Rb5 Bf6 Neg7 Kc7 Rd5 Kb7 Rb5+ Ka8 Rb7 Nd2 Rab1 a1R R1b2 Nb1 Kb6 Ra2 Rd2 Ra1 Bb4 Ra4 Ba3 Qc8 Ne8 Qc4 Qh7 Qd3 Kc7 Qb5 Qh6 Bh8 Qf6 Bg7 Qfh4 Nc4 Qe1 Rd3 Qhg4 Bb2 Q4h4 Rdd4 Qeg1 Ne5 Neg7#
3bN3/2R1N1Kn/k1p5/Qb1Q2Nb/1QnB1n2/r1P2qB1/pN1pB3/r2N3n b - - 0 1 illegal: No possible last move, all moves rejected
3QNQQ1/5p2/B3p2b/nK1bR3/3B1B2/k4rqR/1pRbPQ1Q/rb3n1r b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 g6 f5 Bd7 Na3 Be6 Nc2 Bd7 Ne3 Be6 fxg6 Bd7 g5 Bc8 Ng4 hxg4 a4 Kd7 d4 Kd6 Kd2 c5 Kd3 b5 h4 g3 h5 e6 a5 b3 g7 b4 Kc4 b2 a6 b1B a7 g2 g6 b3 h6 b2 h7 Qe7 Nh3 g1B Nf2 Bh2 Qe1 Na6 Bf4+ Kd7 d6 Kc6 d5+ Kb6 d7 Qd6 d8R Bd7 Ne4 Nf6 g8Q Ng4 g7 Bc6 Rc8 Nb4 Qf2 Qe5 d6 Ne3+ Kb3 Kb5 d7 Bb7 d8Q Nc6 Bg2 Nf1 Nf6 Na5+ Ka3 Bd5 Ne8 Bg3 Rh3 c4+ Qd6 Rb8 a8Q c3 Be4 c2 Bd3+ Bc4 Qh1 c1R Qhh2 Bh4 Rc7 Bg5 Qe7 Rb6 Ra2 Rd6 Qd8 Qe3 Rc8 Qg3 Rc6 Bh6 Rc8 Be7 Qf8 Beg5 g8Q Rd5 Rc7 Re5 Ra1 Re3 Rc8 Rf3 Rc5+ Ka6 Kb4 Rd1 Rb5 Bd5 Ra3 Re1 Rc3 Rc1 Rc2 Rd1 Bb8 Bd2+ Kc5 Bba2 Bc4 Ra1 Bf4 Bb1 Qg4 Rg8 h8B Rg5 Bd4 Rh5 Qgg8 Rh4 Ba2 Rh5 Rb3 Rh4 Re3 Rh5 Re5 Rh4 Kd6 Kb5 Bc4+ Kb4 Ba6 Ka3 Kc5 Rg4 Rhh5 Rh4 Kb5+ Ka2 Qhg1 Rh1 Qgh2 Kb3 Rh3 Ka2 Nd6 Ka3 Ne8+
1rBN1r2/K2nBR2/RQ2Rb2/pp2RB1p/1bRq3P/k1qQ4/b7/nb1Q4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 b4 c6 b6 Nh6 b5 Qf6 b7 Qh4 b6 Ng8 Na3 Qd8 Nb5 cxb5 Kd2 Ke7 Kd3 d5 Kd4 h5 Kc5 g5 f4 d4 e4 d3 c4 g3 h4 g2 e6 d2 e5 a6 f5 g4 f6+ Ke8+ e7 Kd7 f7 g3 Ne2 g1Q+ Nd4 g2 Ba3 Qe8 Bd3 Qf1 Nc6 Qf3 Nd8 Nc6 b8Q Na5 b7 Nb3+ Kb6 g1B+ c5 Nf6 Qa7 Bd4 b8Q+ Bb7 Rg1 Qe3 Rg4 Qg3 Ra2 Na1 Rf4 Bc3 Rc4 Bb4 Bc2 Bg7 f8R Qc3 Rf7 Qf8 e8R+ Qe7 Qf1 d1B Qd3+ Qd4 Bb1 Bb3 Qd1 Rf8 Qd6+ Kc8 e6 Rb8 Bf5 a5 Rg2 Qc3 c6 Qd7 c7 Ba2 e7 Be4+ Ka6 Bd3 Qab6 Bdb1 Q6d3 Bh8 Re2 Bg7 Re6 Qdd4 Ka7 Kd7 Nc6 Bh8 Re5+ Kd6 c8B Bg7 Re6+ Kd5 Nd8 Nd7 Rec6 Bf6 Re6 Rg8 Ref8 Rh8 e8R Rg8 R8e7 Rh8 Rfe8 Rg8 Rec6 Rf8 Ree6 Bd6 Re2 Nc5 Qc7 Bde7 Ra6 Nd7+ Qb6 Bc5 R8e6 Bd6 Rc7 Bc5 Qf3+ Kc4 Qdd3+ Kb3 R2e5 Bce7 Bd6 Ka4 Rc4+ Kb3 Qfd1+ Kb2 Bc7 Bb4 Bd6 Ka3 Be7
4Q3/3B3R/2Qq4/Qb2r2B/p2n1BK1/PBp2n2/1bbkr1p1/NqR1bR1B b - - 0 1 legal: proof: f4 c5 g4 h5 b4 hxg4 c4 e5 fxe5 d5 Na3 Rh7 bxc5 Bd6 c6 Rh8 c5 Bf8 Nc4 dxc4 Kf2 Ke7 Kg3 Ke6 e4 a5 d4 f5 h4 g5 c7 b5 c6 b4 h5 c3 h6 b3 h7 a4 Bd3 b2 Bf4 b1Q Qf3 Qd6 Bc2 Nf6 Ne2 Nfd7 Rc1 Ra5 Bb3+ Rd5 Qh1 Bh6 a3 Re8 h8R Ba6 c8B Bb5 c7 Nc6 Kh2 g3+ Kh3 g2 Rh7 g1B Bb7 Bf2 c8B Bg3 Rf1 Be1 Nc1 Re7 Be3 f4 Kg4 f3 Bf4 f2 Qf3 Nb4 Bc6 Nc2 B8b7 Nc5 Be8 Nd7 Bh5 Nf8 Ba8 Ng6 Qg2 Nh4 Qh1 Kd7 e6+ Kc7 e5 Kb6 Qe4 Nf3 Qg6 Rc5 d5 Ncd4 Qf6 Re8 e7 Bd3 e6 Kb5 Bb7 Bc2 Qg6 Qc7 d6 Re5 d7 Qd6 d8Q Kc5 Rg1 f1B Qa5+ Bb5 Rf1 Re2 Ba2 Re5 Nb3+ Kc4 Qf6 Kd3 Bc6 Qb2 Rc1 Qb1 Na1 Re2 Bg3 Kd2 Bb3 Rf8 Qg6 Rf5 e8B Rfe5 e7 Nh2+ Kh3 g4+ Kh4 Bf4 Bed7 Bh6 e8Q Be3 Bf2 g3 Bh1 g2 Bg3 Nhf3+ Kg4 Qd5 Qgb6 Qd6 Qc5 Kd3 Rd1+ B3d2 Qc4+ Ke3 Qc6 Bc1 Bh2 Bb2 Rc1 Kd2 Bf4+
1N5k/1bB2K2/4RRnp/1Q3p2/R1n1qN1b/p1RQ2N1/3q1P1Q/n2rrR1n b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Ke2 Kf6 Kd3 Kg7 Kd4 a5 Ke5 f5 Ke6 c5 b4 h3 g4 c4 e4 a4 g5 h6 g6 h2 b6 c3 b7 d4 e5 c2 b5 d3 b6 d2 Qh5 d1N Ne2 Nb2 Bf4 c1Q Nbc3 Nd3 Nd5 Qf1 Ng3 Qh3 Rhf1 Nc6 b8N h1N b7 Qg2 Qh2 Ndb4 Ra3 Nf6 Rc3 Kg8 g7 Kh7 g8R a3 Kf7 Na5 e6 Qe4 e7 Nc2 e8Q Be7 Rg6 Nh5 Re6 Nc4 Be5 Na1 Nf4 Qa5 d8Q Bh4 Qb5 Re8 d7 Qb4 Bc7 Kh8 Qe7 Qb2 d8R Qd2 Rd4 Ra6 Qeb4 Rd6 Qb1 Rdd8 Qd3 Rd5 Nh3 Nf4 Rf6 Ng6 Nf4 Rdd8 Rdd6 Re5 Rde6 Rdd5 Na6 Rd8 b8R Bb7 Ra8 Qd1 Nfh5 Qf4 Qd2 Re1 Nb8 Qe4 Nf4 Qdc2 Qe3 Rdd1 Qd3 Qd2 Ra4
7n/3pNk2/2BP2rR/1bB3Q1/Bp1pK1QB/R1bn1r1p/5qq1/1BrR3Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c6 d4 Nf6 Nc3 Ng8 d5 c5 Nce2 Qb6 Nd4 cxd4 Bd3 Qc7 Bf1 Qd8 Kd2 h5 Kd3 b5 c4 e5 g4 b3 a4 h4 f4 h3 f6 b2 f5 b1R g6 b4 g5 Rb3+ Ke4 Bb7 f7+ Ke7 a5 Na6 f6+ Kd6 c5+ Kc7 c6 Kd6 g7 Rb1 g6 Rb2 c7 Rf2 c8Q Nh6 g8B Be7 f8R Bc6 g7 Nc7 f7 Bb5 a6 Bc4 a7 Rf5 Bh7 Na6 g8Q Bh4 Qc6+ Ke7 Qdg4 Rf3 Ra3 Be1 Ne2 Bb5 Nc3 Rc8 a8B Qe8 Q8g6 Rg8 Bb7 Rg7 Rh8 Qg8 Bg5+ Kf8 Q6f5 Rg6 Bh4 Bd2 Qfg5 Kg7 f8B+ Kf7 Nd1 Bc3 Bc5 Rc7 d6 Qa8 Kd5 e4 Ne3 Rc8 Nf5 e3 Ke5 e2 Ne7 e1Q+ Qce4 Qe2 Bc6 Qf2 Be2 Rc7 Bd1 Rc8 Ba4 Rc7 Ba7 Nc5 Rd1 Nd3+ Kd5 Kg7 Qe1 Nf7 Bc5 Rc8 Ke4 Qb7 Rf8 Nh8 Rf6 Rc7 Re6 Kf7 Qh1 Rg7 Rh6 Rg6 Bc2 Qa8 Rb3 Qa2 Ra3 Qg2 Ba4 Qaf2 Qf1 Rc8 Qh1 Rg7 Ba8 Nc1 Ke5 Bb2 Bb1 Rg6 Bb6 Nd3+ Ke4 Rc1 Bc5 Bc3 Bc6
B2Rq3/Bn5k/2p4B/p3pbR1/1QPQ4/pKBn2B1/r2R3Q/q1N1n1br b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 bxa4 g4 h5 gxh5 Qe7 Qd6 Qf6 Qd1 Qd8 e4 f6 e6 Be7 e5 Bc5 Na3 Bf8 e7 Kf7 Nc4 Ke6 Kd2 Kd5 e6 Kc6 Ne5+ fxe5 Ke2 Na6 Ke1 Nb8 Kd2 Kd5 Kc3+ Ke4 e8R Kf5 f4 g5 h4 a5 b4 d5 b5 a3 h6 Kg6 e7 d4+ Kb3 d3 c4 d2 b6 g4 b7 g3 h7 g2 h5+ Kg7 h6+ Kg6 f5+ Kf7 f6 Kg6 f7 Qd6 Rd8 Ra7 e8Q Qc6 Rh5 Qd7 Ra2 Na6 b8B Ne7 Ne2 g1N Bg2 Nf5 Qe7 Nf3 Bb2 Rb7+ Qb4 Nd6 Nc1 Ne1 Ba7 Qe8 Bc3 Bf5 Rb2 Rb6 Ba8 c6 Ra2 Be7 f8B Nb7 Bg7 Bc5 Rg5+ Kf7 Qg4 Bg1 Qd4 d1Q+ Rc2 Qd3 Ra2 Qb1+ Rb2 Qa1 Rd2 Nc7 Bf8 Nd5 Bc5 Nf4 Be7 Rf8 h8B Nfd3 Bg7 Rh8 h7 Rb5 Bh6 Rd5 Rh5 Kg6 Bh4 Rb5 Bg3 Rd5 Qe4 Rd4 Qh4 Rf4 Qh2 Rf2 Qh4 Rh2 Qe4 Rh1 Qd4 Rg8 h8Q Rf8 Qf6+ Kh7 Qfh4 Rh8 Qh2 Rg8 Bh4 Rg2 Bg3 Rf2 Rg5 Re2 Rd1 Ra2 Rd2
2R3b1/1KQbb2n/5b2/3r1rqB/kBPB1R1n/3R1RR1/r6N/R2bR1r1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 g4 h5 g5 g6 Nc3 Ba6 Ne4 Bc8 Nf2 Ba6 fxg6 Bc8 Ng4 hxg4 f5 Rh7 Ra3 Rh6 Ra1 Rh8 Kf2 d5 c4 Kd7 h4 e5 b4 a5 f6 g3+ Kf3 g2 g7 d3 f7 d2 b6 Kc6 b7 a4 g6 a3 h5 d4 Ke4 d3 h6 a2 h7 Bd7 b5+ Kb6 Kd5 Ka5 b6 e4 Nf3 g1R Nh2 e3 Ba3 Nh6 g8R e2 g7 e1R Be2 Nf5 Bh5 Be7 f8R Nh4 Rf4 Ref1 Rgf8 Rg8 Qe1 Ka4 h8B d1B Qg3 d2 Bb4 Bc2 R8f6 Re8 g8R d1B Rd6 Bh7 Bd4 Rf2 Rg5 Bg8+ Kc5 Nc6 b8R Ne5 b7 Ng4 Rc8 Nf6 b8R Nh7 Rf3 Rd2 Rgf5 Rf8 R5f4 Rd3 Rb7 Rf6 Rbc7 Rf5+ Kb6 Raa5 Kb7 Rad5 Qg7 Rd2 Rg6 Rb2 Rgg3 Re2 Rc6 Rd2 Rd6 Rf2 Rc1 a1B Qe5 Bc3 Ra1+ Ra2 Qg7 Rg2 Re1 Rg1 Rde6 Qa5 R6e3 Qc5 Qe5 Bb2 Qc7 Qa5 Bb6 Bbf6 Rd3 Qc5 Ba7 Qe3 Bd4 Qc1 Rfe4 Qg5 Ref4
2Bn2nB/pq1NB1nq/qb1qBnrB/N2Q1PR1/3r1B1K/3NkB2/8/8 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 b4 Bb7 g4 Qd7 Ra3 Kf7 Rf3 Ke8 Rf4 gxf4 Bc4 Qd8 Bf1 Bc8 h3 Be6 g5 Bf7 Qe2 Bh5 Qd1 Bg4 hxg4 Bg7 Kf2 Bh6 Ke1 Bf8 Kf2 Kf7 d4 c5 d6 e5 d5 h5 d7 e3+ Kg2 h4 Kh3 e4 b6 f3 d6 f2 b5 c4 b7 c3 b6 c2 Bd2 c1Q Qe1 e2 Be3 Nh6 g6+ Kf6 g7 Ke5 g8B Qa3 g5 Nc6 Qd2 e1N b8B Nd3 b7 Nc5 g6 Ne6 Bg2 f1N g7 Nh2 Ne2 N2g4 Bf3 Qa6 Nf4 Qc8 Re1 Nf6 Rg1 Qd8 Bf7 Nhg8 Na3 Rh6 Bc7 Rg6 Rg4 Ne8 b8N Qdc8 d8B Qcb7 d7+ Bd6 Bf2 e3 Bg5 e2 d8B e1Q Bde7 Qd1 Qa5+ Qd5 Bg3 Kd4 Nc4 Qe5 Nd3+ Qf4 Qa2 Bc5 Na5 Ke3 Be5 Bb6 Ba1 N6c7 Be6 Nd5 Nd7 Rc8 Nb8 Rd8 Bc8 Rdd6 Nd7 Nd8 Bgf6 Qe5 Rg5 Qe6 Kg4 h3 Bf8 h2 B6e7 h1Q Bh2 Nh6+ Kh3 Qf6 g8B Qe6 Bh8 Ndf6 Bf7 Rd4 Qd5 Qd6 Be6 Nhg8 Bfg7 Qb1 Be5 Qh1+ Kg3 Qh7 Bh6 Ng7 Kh3 Ne4 Kh4 Nef6+ Bf4+
1r1NRNqB/1Bn1B1B1/3B2p1/3Qb1K1/n1rBpN2/n7/B1q2k1P/b1q5 b - - 0 1 legal: proof: d4 d5 a4 b5 axb5 g6 c4 Bh6 cxd5 Bg7 b4 Bh3 f4 Bc8 g4 Be5 e4 Bd7 g5 Bg7 e5 Kf8 d6 Bh6 d5 Kg7 f5 Be6 Ra2 Bd7 e6 gxf5 exd7 f4 g6 Kf6 Rg2 Bf8 g7 Ke5 Rg3 Kf6 Rg6+ hxg6 Kf2 Kg5 Kf3 c5 b6 e5 b7 a5 b5 f5 b6 a4 Qd2 c4 Qe2 a3 Bb2 a2 Na3 a1B Bg2 c3 Nb5 c2 Qe4 c1Q Ne2 Na6 b8B Rh4 b7 Nc7 Re1 Qc2 Nbd4 Ne7 g8B Nc8 Ba7 Bg7 b8B Nb6 Ne6+ Kh5 Bd4 Na4 Nf8 Rg4 Qd3 Kh4 Bh1 Kh3 Qd1 Qe8 d8N Qe6 d7 Qf7 Bh7 Qg8 d6 Rh4 Bac5 Bh8 Bba7 Rb8 Bb2 Bg7 Qd5 Bf6 Bcd4 Bh8 Bac5 Bg7 Kf2 f3 Ke3 f2 Nf4+ Kg4 Bca3 f1Q Re2 Qe6 Bg8 Qfb1 Qa5 Qbc1+ Qd2 Qe8 Ba2 Qf7 Bb7 Qg8 Nf7 Bh8 d8B Bf6 d7 Bh8 Nd3 f4+ Ke4 f3 Bd6 f2 B8e7 f1N d8B Ne3 Bf6 Qh7 B8e7 Qg8 Bg7 Nc4 Nd8 Na3 Qa5 Kh3+ Kf3 Re4 Qd5 Rh4 Bf2 Rc4 Bfd4 Nb6 Ke4 Na4 Re1 Kg2 Re3 Qc3 Nf4+ Kf1 Kf3 Q3c2 Kg4 Kf2 Kg5 e4 Rb3+ Kf1 Rb5 Ke1 Ra5 Kf1 Ra8 Ke1 Bh6 Be5 Bg7 Kf1 Bh8 Bg7 Nf7 Ke1 B4e5 Rd8 Bec3+ Kf2 Rc8 Rd7 Re8 Rd8 Bce5 Rb8 Bec3 Bd4 Nd8 Bb6 Bce5 Bd4 Beg7 Be5 Bd4+
2R4B/4N1pq/n3Kb2/1P1Q1rR1/2r1B1Bb/2B1n1pB/1qpp1B2/k3B2R b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 hxg4 d6 Rh4 Nh3 Rh7 Ng1 Rh8 e4 Be6 d4 Bc8 d5 Bf5 Nc3 Ne7 Nce2 Ng8 Nd4 exd4 f3 Rh5 e5 Be4 fxe4 Rh8 Ke2 Kd7 Kd3 f5 Kc4 a5 b4 c5 h4 f4 h5 d3 e6+ Kc8 b6 Kb7 e5 Ka6 b5+ Kb7 e7 f3 e8B f2 e6 a4 h6 a3 h7 a2 d7 Bd6 e7 Ra5 Ne2 Bg3 d6 Nh6 Kd5 c4 Nf4 c3 Bg6 c2 e8B Qh4 d8R Ra4 d7 Rc4 Bb2 Na6 Bh3 f1Q Bc3 Rf8 h8B Nf5 Ke6 Qh7 Rc8 Bh4 d8B Ne3 Nd5 Rf5 Bd7 g3 Ne7 Qf3 Qd2 Qe2 Raf1 a1B Rf4 Qf1 Rg4 Qc1 Rg5 Qb2 Qd1 Rf1 Be1 Rf5 Qh5 d2 Bc7 Nd1 Be5 Ne3 Bc3 Qa3 Ba5 Bf6 Bc3 Qb2 Rc6 Kb8 b7 Ka7 b8B+ Kb7 Rc8 Kb6 Bc7+ Kc5 Bg4 Rb4 Bh3 Kc4 Bb6+ Kb3 Qf3 Ka2 Qd5+ Rc4 Bg4 Rf4 Be4 Rf5 Ba7 Ka1 Bh3 Nf1 Baf2 Ne3 Kf7 Re5 Bdg4 Rf5 Ke6
R3N1Qb/4R1qB/2rr1R2/2pN1n2/2K5/RRbrq3/nkPNR2n/1b1n1R2 b - - 0 1 illegal: No possible last move, all moves rejected
1kRb1n2/1N4N1/p6N/2nnQ1Nr/P2NrN2/K2B1rB1/1N2bq1b/n2r1B2 b - - 0 1 legal: proof: d4 c5 g4 f5 a4 fxg4 b4 h5 bxc5 e5 Ra3 h4 Rg3 hxg3 dxe5 Rh6 Nf3 Rh4 Ng1 Rh8 Kd2 b5 Kc3 g5 Kb3 d5 f4 Kd7 h4 Kc7 e4 g2 c4 a6 c6 g3 f5 b4 h5 g4 e6 d4 f6 d3 h6 d2 e5 Qd3+ Nc3 Qd7 f7 Bb7 c5 Qe7 h7 Nf6 Nh3 g1R Ne4 g2 Qe1 d1N Neg5 g3 Bf4 Bg7 f8N Qd8 e7 Nbd7 e8N+ Kb8 Nd6 Ne3 e6 Ned5 e7 Ne4 e8N Qb6 Nfe6 Bf6 Nd4 Nf8 Ng7 Bd8 Kb2 b3 Ka3 b2 c7+ Ka7 c8N+ Kb8 c6 Nc5 Bd3 Rf1 Qe5 Rf3 Rc1 g1B Rc3 g2 Bg3 b1R Nf4 Bh2 Rc4 Qa7 Nb6 g1N Rc3 Rb4 Nbc4 Ne2 Nb2 Nc1 Rc2 Qb6 Rc4 N1b3 c7+ Ka7 c8B Na1 Rc3 Kb8 Bh3 Bc8 Bhf1 Bg4 Rc1 Ra7 Rc2 Rd7 Nb7+ Rd6 Ndf5 Re4 Nd4 Rfe3 Rc1 Be2 Rc3 Rf3 Rc1 Rg8 h8N Qa7 Nhf7 Rh8 Rc3 Rh5 Nh6 Ncb3 Nc2 Qf2 Rc7 Nc5 Nd4 Rb6 Nc4 Rb1 Nb2 Rd1 Rc8+
1n5N/3N1kr1/b1p1qN1n/N2R2p1/pb3rPn/6QN/K4R1N/BN2Rrq1 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 g3 b5 axb5 h4 Bg2 h3 Qc2 hxg2 Qa4 Bh3 Qd1 Bc8 e4 f5 b4 a5 h4 g5 d4 f3 Kd2 f4 Kc3 c6 Kb2 a4 g4 f2 d6 f1R b6 f3 h5 f2 b5 Bg7 h6 Qe7 d7+ Kf8 d8N Nf6 e5 Nh7 b7 Na6 b8N Re1 e6 f1Q b6 Qff6 b7 Qf5 Nh3 g1N Qd3 Qd7 e7+ Kg8 e8N Qa5 Rh2 Be5 Qg3 Nf6 h7+ Kf8 Ka2 Qb6 d5 Qe7 d6 Rd1 d7 Bd6 Rf2 Nf3 Bb2 Ng8 Nf6 Ra7 Nf7 Qe8 d8N Rf1 Ne5 Nh4 Nf3 Bb4 Nh2 Nh6 Nbd7+ Kg7 b8R Rf8 Ra8 Nb8 h8N Ba6 Nb7 Qd4 Na5 Qe6+ Nd5 Rf4 Bc3 Qe1 N5f6 Qde4 Be5 Qg2 Bb2 Qg1 Bd4 Rc7 Ra7 Qe5 Rb7 Qe7 Rb5 Qe6+ Rd5 Rb7 Nd2 Rc7 Re1 Ra7 Ba1 Rb7 Nc5 Kf8 Nb1 Rg7 Ncd7+ Ke7 Ng6+ Kf7 Nh8+
2n4k/Rr2qrRp/2P1R2R/B1rrB3/RR3q2/1KR2p2/8/Q2Qbn1N b - - 0 1 legal: proof: d4 b5 b4 e5 f4 c5 dxc5 a6 fxe5 Ke7 a4 Ra7 axb5 Nf6 b6 Ng8 b5 Ra8 b7 Ke8 b6 Be7 Bd2 Bd6 Bc1 Bf8 g4 g6 Bh3 d6 Na3 Qf6 Nb5 axb5 g5 Qd8 Bf5 gxf5 h3 f4 Ba3 Ke7 Bc1 Bg4 hxg4 Ke8 Kd2 f5 Kc3 Kf7 e4 Kg7 c6 b4+ Kb3 d5 c4 f3 e6 f2 c7 f1Q c8R d4 e7 d3 e8R d2 c5 f4 e5 f3 g6 Nd7 b8B Ne7 b7 Qh3 e6 Nb6 g5 Qg3 Ra7 Qd7 Ne2 Qd8 Be5+ Kg8 b8R Nc6 e7 Qf4 g7 Nd5 Rh6 Ne3 Ng3 Nf1 Nh1 Qd7 Ra4 Na7 c6 Qd6 Rc7 Nc8 Rca7 Qd8 Bcb2 Qc7 Qa1 d1R Bbc3 Rd5 Rd8 Qd6 e8R Qe7 Rb5 Rc5 Rd3 Rb8 Bd2 Rb7 Rc3 Rd7 Qd1 Rdd5 Rb6 Qd7 Ree6 Qe7 Kb2 b3 Rbb4 Rd6 Ka3 b2 Kb3 Rdd5 Qa1 Kf7 g8R b1R+ Ka3 Bg7 Ka2 Bf6 Rg7+ Kf8 g6 Bh4 Ka3 Be1 Ka2 Rc1 Kb3 Rd1 Rf7+ Kg8 g7 Rd7 Bc1 R1d5 Bd2 Rb7 Qd1 Qeh4 Rd7 Qe7 Rc7 Kf7 Rd7 Rf8 g8Q+ Ke8 Qg4 Rf7 Qg1 Kf8 Qd4 Kg8 Qa1 Qef6 Qd3 Kh8 Qdb1 Rf8 Rg7 Rff7 Qd1 Qe7 Be3 Ra5 Bb6 Rac5 Ba5
n1R3B1/2Q2Qn1/2Q1B1Q1/1q1pr2p/pkP3pK/1Q3Qp1/3N1br1/2N4Q b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 f5 f4 e5 g4 c4 gxf5 c3 f6 Qa5 f5 Qd8 Ra4 Kf7 dxc3 Bc5 c4 Bf8 c5 Ke8 Bf4 exf4 Ra3 Bb7 Rg3 fxg3 h4 g5 h5 Bd5 Bh3 Bf7 Bf1 Bg6 hxg6 Qa5 Nh3 Qb6 Ng1 Qd8 e4 h5 f7+ Ke7 g7 d5 b6 a5 b5 a4 b7 Nc6 b8Q Ra7 b6 Qe8 e5 Qd7 f6+ Ke6 b7 Nce7 c6 Qd6 c7 Kd7 e6+ Kc6 c8Q+ Kb6 Nd2 Ka5 Qc6 Kb4 Bh3 Ra5 Ne2 Qd8 Qbc7 Ka3 b8Q Nh6 g8B Rb5 O-O Ng6 Kg2 Bg7 f8Q+ Ne7 c4 Kb4 f7 Bd4 Nc1 Qe8 Qg7 Nhf5 f8Q Bf2 Qg6 Ng7 Qff3 Nc8 e7 Nb6 Bhe6 Na8 Kh3 g4+ Kh4 Qd7 e8Q Rb6 Qef7 Rh7 Q6b7 Qb5 Qbc6 Rh8 Qh1 Rh6 Qdf3 Rh8 Bh7 Re8 Bg8 Rb7 Bc8 Re5 Re1 Rg5 Re8 Re5 Be6 Rb6 Rc8 Rb7 Q7b6 Re7 Q8c7 Re2 Bd7 R7e5 Qbb8 Bb6 Be6 Rg2 Qbb7 Bf2 Qbb6 Bg1 Qbe3 Bf2 Qb3+
1N1N3b/q2bnN1N/QB1Nq2P/2qq2N1/n2NR1rR/3qb3/2b4K/Q4k2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Kf2 h5 Bg2 a5 Ke1 f4 Bh3 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 Kf2 Kf7 b4 Kf6 e4 Ke5 h4 Kd4 f6 Kd3 e5 c5 e6 g5 f7 a4 b6 g3+ Kf1 g2+ Kf2 g4 d6 a3 d7 a2 b7 c4 b5 c3 e7 c2 e8N Bg7 f8N Ne7 b6 Na6 b8N Nc5 b7 Rg8 h5 Na4 h6 Bh8 Nh3 g1B+ Kf1 g3 Na3 f2 Kg2 Rg4 Nb5 Qb6 d8N Qe6 Nh7 Bd7 N3g5 f3+ Kh3 g2 Nd4 f1B Ndf7 f2 Ned6 Be2 Ba3 c1Q Bc5 f1Q Bb6 Bf2 Kh2 Qcc4 Rc1 Qc5 Rc4 Qcd5 Qa1 Bd1 Rb4 Qfe2 Re1 Qf1 Re4 Be3 N4b5 Ke2 d4 Rg3 Nf5 Bc2 Nc6 Qdd6 b8N Nc5 d5 Bc8 Rg4 Bf4 Qb1 a1Q Rh4 Qa7 Qa1 Qde5 Qa6 Na4 d6 Qd4 d7 Rg4+ Ng3+ Kf2 d8Q Bc1 Qd5 Bd7 Qe5 Qd3 N3e4+ Kf1 Ned6 Qdd5 Re4 Bd2 Ncd8 Bc1 Nf3 Bd2 Qb2 Bc1 Qa1 g1Q+ Kh3 Qgc5 Kh2 Q3c4 N3g5 Qcd3 Qb2 Bd2 Nd4 Be3 Qa1+
1k2Kb2/RR1r4/3Rb1Q1/4Npq1/nRq4R/P2qR1RN/Bn6/2b1Q1nr b - - 0 1 illegal: No possible last move, all moves rejected
q3r3/Nr1R1BBP/1r2R1Q1/3k1q2/2b2bQ1/1B1bp1B1/2Bn1B1r/K3B1b1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 d3 cxd3 Bd2 d4 Bf4 Qb6 Bc1 Qd8 g4 h6 g6 Na6 Nd2 Nb4 Ndf3 Nd5 exd5 h5 g5 Ba6 Ne5 Bc8 Ng4 hxg4 Kd2 Kd7 b4 Kd6 c4 a5 h4 f5 b6 e5 c5+ Kd7 c6+ Kd6 g7 f4 h5 f3 c7 g3 b5 g2 h6 e4 b7 f2 b8B a4 g6 a3 h7 a2 b6 Nf6 g8Q Ra6 b7 Bd7 c8B+ Qc7 g7 Ra3 Rh6 Ke5 d6 Ra6 Ba7 Qc4 b8B Qc5 Bb2 Rb6 Qg4 Be6 d7+ Kd5 d8B Bd6 Nf3 g1B Rd1 a1Q Ne5 Qb5 Qf7 Re8 g8B Qaa6 Kc1 d2+ Kb1 d3 Nc6 Bf4 Bg2 f1B Qfg6 Rb7 Bd4 Qa8 Bf2 Rb6 Bh3 e3 Bf7 Ne4 Na7 Be2 Bdh4 Qd7 Rc1 d1R Ka1 d2 Bg7 Bd3 Bg2 Re1 Rd1 Re2 Be1 Qb5 Bhf2 Qc5 Bd7 Rb7 Ba4 Qa5 Rc1 d1R Bh3 Qb5 Bc2 Nd2 Rb1 Rc1 Bb3+ Rc4 Rd1 Qc5 Bc2 Rcb4 Bf1 R4b6 Bc7 Bg5 Bcg3 Bf4 Bh3 Qe7 Bf1 Qg5 Bh3 Qf5 Bg2+ Kc4 Bd5+ Kc5 Bdb3 Bd5 Q6g5 B5c4 Re6 Kd5 Qg6 Ree7 Bh4 Re8 Bfg3 Rh2 Bgf2 Rc8 Bhg3 Re8 Qe2 Ne4 Ba5 Kc5 Qf1 Be2 Qh3 Bf1 Rd8 Bfd3 Bae1 Nd2 Qhh5 Qd5 Rd7 Qf5 Rc7+ Kd5 Qhg4 Rh8 Rce7 Re8 Rd7+
nr3k2/rBp5/1pq1P1b1/3QKQ1n/3R2Q1/1q1bQ3/QbQ1r3/QN1RN3 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 gxf5 d5 c4 h6 cxd5 Ne7 b4 Ng8 Bb2 axb4 Bd4 Bc5 Be3 Bf8 Bg5 hxg5 Kf2 b3 Kf3 g4+ Ke4 g5 h4 g3 a4 b2 d4 g4 d6 g2 d5 g3 f6 Ne7 e6 Rh5 a5 Ng6 a6 Rh8 e7 Nf4 h5 Nd7 h6 Nc5+ Ke5 Na4 e4 Nh5 a7 Rb8 a8Q Nf4 f7+ Kd7 h7 Rg8 h8Q Bh6 f8Q Nb6 Qa2 Qe8 Rh4 Nh5 Nf3 g1R Ne1 g2 Qc2 Na8 Ba6 b6 Bb7 Bc1 Qf3 Qg6 Qg4+ Ke8 d7+ Kf7 d8Q Qc6 Qd6 Bf5 Qd7 Bg6 Qdf5+ Ke8 d6 Rf1 Qa3 g1Q Qa2 Qe3 Qg7 Qb3 Qh8 Nf6 d7+ Kf7 d8Q Re8 Qd4 Rf3 Qhh5 Kg8 Qhg5 Nh5 Qge3 Rg3 Qd5+ Kg7 Qed4 Rd3 Qdc3 Rd4 Qe3 Ra4 Qed4 Ra7 Qdc3 Rf8 e8Q Rf7 Qe7 Kg8 Qeg5 Kf8 Qge3 Rf6 Kd4 Rf7 e5 Rf6 e6 Rf7 Qfg5 Rf2 Ke5 Re2 Q4f5+ Kg8 Rd4 Kg7 Na3 b1B Qgg4 Bb2 Qce4 Bd3 Rd1 Bc1 Qca1 Bb2 Nb1 Kg8 Qc1 Kg7 Qee3 Kg8 Qc2 Kg7 Qfe4 Kf8 Qef5+
QQN2r2/1Rq3n1/2p4N/2b3b1/NBkq1bB1/2pb3N/N1P5/KN1q1q1N b - - 0 1 legal: proof: f4 b5 g4 f5 b4 e5 a4 exf4 axb5 d5 Ra6 f3 Rc6 f4 Rc4 dxc4 Ba3 a5 Bb2 g5 Bc1 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Bb2 Ra6 Ba3 Rg6 Bc1 Rg5 hxg5 Qe7 Nh3 Qf6 Ng1 Qd8 d4 Kf7 Kd2 h5 Kc3 g3 Kb2 f2 e4 f3 e5 a4 g6+ Ke7 f6+ Ke6 g7 Kd5 b6 a3+ Ka1 c6 f7 h4 b5 g2 e6 a2 b7 h3 b8N h2 b6 Qf6 e7 Qf5 e8N Be6 b7 Qd3 Nd6 Ne7 g8N Qh7 Ne2 g1B Nh6 Nc8 Bh3 f1Q Ba3 f2 Ng3 Qfd3 Na6 f1Q b8Q Qe3 Bg4 Qf6 Bb4 Be7 f8N Bf5 Ne6 Rf8 Nec5 Bd3 Na4 Qf1 Qc1 Bg5 Qa3 Ne7 Nc8 Bf2 Rg1 Qd1 Nh1 Nf5 Re1 Qf4 Re7 Ng7 Rb7 Qc7 Qb3 Qh8 Qa8 Bg3 Qb2 B3f4 Qb3 Ke4 d5 Kd4 d6 Qf1 d7 Kd5 Ng3 h1Q d8N Qd1 Ndf7 Qhf1 Nh1 Kd4 Kb2 a1B+ Ka2 Bc3 Qb2 Kd5 Ka1 Bcd2 Qb3 Bde3 Qb2 Bc5 Qb3 Bge7 Ng5 Kd4 Nh3 c3 Ba3 Bd8 Nb4 Bdg5 Qb2 Kc4 Na2 Ne8 Qb6 Qd4 Bb4 Ng7 Qba7 Be5 Q8b8 Bef4 Qaa8
n5k1/1Q1b2qb/nr1RRpnR/N1PR2Qp/1rR1R1p1/B1n4N/R7/2K5 b - - 0 1 illegal: No extended proof kernel
1R1b1R1q/nP2p1Qr/1N1RR1p1/3R1rkp/1RQ1p3/b6K/R3n3/4BB1b b - - 0 1 legal: proof: e4 b5 d4 d5 h4 dxe4 a4 g5 hxg5 c5 axb5 Ba6 dxc5 Bc8 g4 Qd6 g6 Kd8 g5 Qd4 g7 Bf5 g6 Na6 Nd2 Nb8 Ndf3 Ke8 Ne5 Nf6 g8R Qd8 g7 Bc8 Ng6 fxg6 b4 Kf7 c4 h5 f4 a5 Kf2 a4 Kg3 a3 b6 a2 c6 Nbd7 b7 Nd5 b8R Kf6 b5 Kf5 b6 Rh6 b7 Nc3 c5 Nb5 c7 Ra5 c6 Rh8 Qe2 Nd6 Kh3 Ra8 Nf3 Nf7 Qc4 Nfe5 Nd2 Kf6 f5 Kg5 f6 Nf3 f7 Ra5 Rh2 Rb5 Rb1 a1B Rb4 Be5 Bb2 Qe8 Bc3 Rh7 Rh8 Bg3 g8Q Bh6 f8R Nd4 Qg7 Rf5 Rf6 Be5 Re6 Ne2 Rf8 Nb6 Rff6 Bd7 c8R Qh8 Rcf8 Nc8 c7 Na7 c8R Bc7 Rcd8 Bc8 Rd5 Bd8 Red6 Bd7 Rfe6 Ba4 Qc8 Bc2 Nc4 Bd1 Qe5 Bg7 Be1 Bf6 Qa1 Bb2 Nb6 Ba3 Qe5 Nd4 Qg7 Bf3 Rc2 Ne2 Qc4 Bh1 Ra2
2N1b1rR/p1p2n1B/KbR2pq1/3N4/1rRpQ2n/3PR3/k2b1RR1/2QR4 b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 b5 axb5 h5 gxh5 Qf6 c4 Qg5 b6 Qd8 e4 Bc5 b4 Nh6 b5 Qe7 b7 Na6 Ba3 Bd6 Bc5 Ng8 Bb6 Qe5 Be3 fxe3 b6 Qb5 cxb5 Nb8 Qc2 Bc5 Qd1 Bf8 Ke2 Ke7 Kd3 Ke6 Kc4 g5 h4 g4 e5 d6 h6 f6 h7 e2 h5 e1Q h6 g3 Rh3 g2 Na3 Qe3 Bd3 Ne7 Ne2 g1B Nc3 Nf5 Nd5 Nc6 b8R Nh4 b7 Nf5 b6 Bd7 Kb5 Ncd4+ Ka6 Qe2 Re3 Qg4 Qc1 Qe2 Nb5 Bg7 Rg8 Rc8 b8R Qg4 b7 Qh3 Rb1 Bf8 Rg2 Rg8 h8R Nc6 h7 Nh4 Rb2 Re8 Rd8 Qf5 b8R Bh6 Rb6 Qg6 Rb4 Ref8 Rc4 Be8 Rd7 Nd8 Rbc6 Nf7 Rf2 Rg7 Rg8 Bg5 h8R Rh7 Rg7 Rg8 Ne7 Bf4 Nc8 Kd5 e6 Rh5 e7 Re5 Rc2 Re4 Nc3+ Kd4 Rd8 d5 Rdd6 Qh7 Rgg2 Qg6 Rb6 Kc5 Rbc6+ Kb4 Rd7 Kb3 Rd8 Bd7 e8Q Rb4 Qe4 Be8 Rdd6 Be5 Rd7 Bd4 Rc4 Bb6 Rd6 Ba5 Rdc6 d4 Nd5 Bb6 R2c3+ Ka2 Re1 Bh2 Rd1 Bf4 Bc2 Bh6 Re3 Qh5 Qe5 Qg4 Bh7 Qg6 Qe4 Bg5 Ree2 Be3 d3+ Bd2 Re3
NN4R1/nb1K1p1b/b1rQ2bQ/q1b1q3/5P1p/2BNrBN1/kn1N1N2/1N6 b - - 0 1 legal: proof: d4 b5 b4 c5 h4 cxd4 a4 e5 axb5 g5 Ra3 e4 Rd3 exd3 hxg5 Bh6 Kd2 Bg7 Ke1 Bf8 Kd2 Ke7 g4 Kd6 f4 Kd5 c4+ Ke4 g6 h5 c5 Kd5 e4+ Kc4 g7 d5 g5 a5 g6 h4 b6 a4 e5 a3 b5 a2 c6 a1Q c7 Qd6 b7 Ra4 e6 Rh5 b6 Rb4 e7 Qa5 e8Q Qdc5 Ne2 Bf5 c8N Rh8 Rg1 Ne7 g8N Na6 b8N Rh6 b7 Nc6 g7 Bg6 Ng3 Na7 Bb2 Rb3+ Bc3 Nb4 Nd7 Qcc7 b8N Qe5 Rg2 Bc5 Be2 Bh7 Rg1 Rc6 Ngf6 Bg6 g8N Ra3 Qe1 Kb3 Nfe4 Ka2 Qe6 Bh7 Qd6 Bg6 Kd1 d2 Nh6 Nd3 Kc2 Nb2 Bf3 d1B+ Kd2 d3 Ng4 d4 Ncb6 Rb3 Ngf2 Bc2 Na8 Bh7 Qh6 Ra3 Qd1 Bg6 Ke1 d2+ Kf1 Bd3+ Kg2 Ba6 Kh3 d3 Kg4 Qe7 Ne5 Qd6 Qa4 d1B Qd4 d2 Kg5 Bc2 Ned3 d1B Ned2 Bb7 Qf6 Be2 Qe6+ Qd5+ Kf6 Bh7 Qd6 Qh5 Ke7 Qe5+ Kd7 Bf1 Ne1 Bcg6 Rg2 Bfa6 Ned3 Ra4 Ngh1 Re4 Rg4 Re3 Ng3 Be4 Rg7 Beg6 Rg8
3n1r1R/1r2QRN1/1R1p1QnK/2pR1b1n/1NkPq3/2q1R3/RR1B1b1p/r7 b - - 0 1 legal: proof: e4 b5 c4 g5 b4 f5 exf5 a6 h4 Bg7 hxg5 Bh6 Bd3 Bf8 Bc2 Bb7 Ba4 bxc4 b5 Bc8 b6 Nc6 Bb5 axb5 Rh4 Nb8 Rh6 Ra5 Rh1 Ra8 Ke2 Kf7 Ke3 e5 a4 h5 d4 c5 f4 c3 g4 c2 b7 d6 f6 Ke6 g6 Kd5 f7 b4 f5 e4 Kf4 h4 a5 h3 g7 h2 f6 b3 Kg5 e3 a6 e2 a7 e1Q Nc3+ Kc4 Ra3 b2 Na2 b1N Nh3 Ne7 g8R Qe3+ Nf4 Qd7 Bd2 c1R Qe1 Rh3 Nb4 Ng6 Rh8 Qd3 Qe7 Na6 b8R Qa4 Nh5 Be6 Ng7 Qe8 Rb6 Rh7 Re1 Qc6 Re5 Nc3 Rd5 Ne2 Ra2 Rc8 a8R Ra1 Rb2 Nc7 Ra3 Qc2 Re3 Qc3 Ra2 Ng3 Rb2 Rh4 Ra2 Nh5 Kh6 Re8 g5 Bf5 Rb2 Ne6 Ra2 Ngf4 g6 Nd8 Qe5 Re7 Bc1 Qe8 Qe4 Rc7 Qf3 Be7 f8Q Bd3 f7 Kb3 Nf5 Bf6 g7 Kc4 g8R Rb7 Rgg2 Ng6 Ng7 Rf4 Rgb2 Bh4 Bd2 Bf2 Qe4 Bb1 Qe5 Qe6 Qe7 Rf6 Qg5 Bf5 f8R Rf7 Qgf6 Qe4 Ne6 Rg7 Rf7 Rg8 Ng7 Re8 Re2 Rf8 Re3
nqbBB2n/1Q2b2n/B1Npp3/BB1P4/R2pB3/b1r4R/2n1r3/1k2QK1B b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c6 bxa5 Qb6 Nc3 Qd8 d5 c5 Nce2 Bh6 Nd4 cxd4 Be3 Bg7 Bc1 Bf8 c4 Kf7 f4 Kg6 a4 Kf5 g4+ Kg6 a6 h5 a7 b5 a5 b4 a6 h4 c5 d6 f5+ Kg7 c6 e6 g6 Kf6 g5+ Ke5 g7 h3 g6 h2 c7 e3 f6 Ke4 f7 b3 Ra4 b2 Bb5 b1N Kf1 Na3 Bd2 Nf6 g8B Nc2 g7 Nh7 Ba5 Be7 f8B Nd7 Qe1 Nb6 Nf3 Rb8 Bf7 Na8 g8B Rb7 Be2 Rb3 Ne5 Rc3 Nc6 Qe8 Bf3+ Kd3 Bh6 Qf8 Bg5 e2+ Kf2 Qd8 B7h5 Qe8 Bgf7 Rf8 Bfg6+ Rf5 Bh4 Qh8 Be8 Re5 Bhg6+ Re4 Qg1 e1B+ Kf1 Qf8 Qf2 Bd2 Qe1 Bc1 Bf6 Ba3 Bg2 Nb6 a8B Qh8 Bb7 Na8 a7 Qf8 Bgf7 Re2 Ba6+ Rc4 Bb5 Qg8 Rg1 h1N Bf3 Qf8 Rg3 Nf2 Rh3 Ne4 Bg8 Neg5 Bh1+ Re3 Bgf7 Qh8 Bh5 Nf7 B5f3 Re2 Bg5 Qg8 Bh4 Nh8 Bg5 Bd7 c8B Qf8 Bca6 Bc8 Bd7 Qd8 Be8 Qc7 Bf6 Qb8 Bh4 Nb4 Bfg2+ Kc2 Be4+ Kb2 Bg5 Nc2 Bf6 Rc3 Bh4 Nc7 a8Q Ka2 Qb7 Na8 Qf2 Kb1 Bg5 Bf8 Bgd8 Be7 Qe1+
BqN3Rr/4Q3/2p1nKN1/2kNB2r/2Pp4/1Qqpbp1N/p2N3N/4Nb1n b - - 0 1 legal: proof: d4 e5 f4 exd4 a4 b5 axb5 g5 fxg5 h5 g4 Rh7 g6 Rh8 b4 Ne7 g5 Ng8 Ra3 Na6 Rg3 Nb8 Rg4 hxg4 Kf2 Ke7 Kg3 Kd6 Kf4 a5 Kf5 f6 c4 a4 h4 a3 e4 d3 g7 g3 b6 a2 g6 g2 h5 Nc6 b7 Ra5+ b5 Qe8 b8Q Ra7 h6 Na5 h7 Ra8 e5+ Kc5 b6 d5+ e6 d4 b7 Be7 Qb3 Bd8 Nh3 g1Q Nd2 Qe7 Bg2 Qd7 Qa7+ Kd6 b8N Qh2 Nc6 Rb8 Ne5 Qe8 Rg1 Bd7 Nef3 Nc6 Ne1 Rb5+ Bd5 Bc8 Rg2 Bb7 e7 Ba8 Qb7 Kc5 Be4 Qf8 e8N Nge7+ Ke6 f5 g8N f4 g7 Nf5 Nef6 Ng3 Ne7 Nh1 g8N Qg1 Ned5 Qf1 Ng4 Bg5 Rg1 Qb8 Nh2 Nd8+ Kf5 Qe2 Nge7 Ne6 Nc8 Qd1 Bf3 Qc2 Rg2 Bh6 Rg8 Qc3 Kf6 Ra5 Qa6 Bc6 Qab7 Bd7 Be4 f3 Q7b4+ Kc6 Qe7 Be3 Ba3 Rb5 Bd6 Rc5 Qe8 Rb5 Be5 Kc5 Nb4 Ra5 Ba8 c6 Nd5 Nf8 Nf2 Bh3 Qe6 Bf1 Nh3 Ra7 Qd7 Ne6 Qe8 Rg7 Qf7 Rg5 Qf8+ Qd6 Qe7 Rh5 Rg4 Re8 h8N Rd8 Rg8 Re8 Qf7 Qb8 Ng6 Rf8 Rg7 Rfh8 Rg8 Qb7 Qd7 Qb8 Qe7+
rRqR4/r2q2k1/1Kn1b1r1/QRB4B/1R1N2P1/R1n2p2/2BBB3/3b2q1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 a4 d5 c4 b4 cxd5 Kd7 f4 exf4 a6 Qe8 a7 Qd8 a5 Bc5 Nc3 Bb6 axb6 Ke8 b7 Bg4 Na4 Bf5 Nb6 Be6 Nc8 Bxc8 Kf2 Kf8 d4 f5 e4 h5 g4 c5 g6 f3 Ke3 f2 g7+ Kf7 e5 h4 e6+ Kf6 e7 h3 e8B h2 d6 b3 d7 b2 d5 b1R d6 c4 Kd4 f4 Kc5 c3 Qd2 c2 Ra4 f3 Ne2 Qe7 d8R Qe6 d7 Rh7 Bh5 Ne7 g8B Rb6 Qa5 Kg7 Rb4 Nd5 Bd2 Nc3 Nd4 c1Q Be2 Nc6 b8R f1B Rb5 Qe8 Bb3 Qd1 Rg1 h1Q Bc2 Ra6 Rg2 Qg1 Rb4 Rh6 Rf2 Rg6 R8b5 Rb8 a8R Qe6 Ra7 Ra8 Rab7 Qe8 Rb8 R6a7 Kb6 Qe6 Rh8 Qf5 d8B Be6 Be7 Qf8 Bc5 Qc8 Be1 Qd3 Rd8 Qf5 Rg2 Qf7 Bd2 Qfd7 Bed1 Bfc4 Be2 Bb3 Rf2 Ba4 Rf1 Bab3 Ra1 Ba4 Ra3 Bab3 Bb1 Bd1 Bc2
3k3N/1B1q2R1/n3b1R1/R3r1n1/p1qQBR1n/br3PK1/BB4Bp/2b4R b - - 0 1 legal: proof: c4 b5 e4 f5 d4 g5 a4 d5 axb5 e5 cxd5 Kd7 h4 gxh4 Nd2 Ne7 dxe5 Ng8 e6+ Ke7 e5 Ke8 Ne4 fxe4 g4 c5 b4 h5 f3 a5 Kf2 c4 g5 h3 b6 c3 b5 c2 e7 h4 b7 h2 b6 h3 g6 e3+ Kg3 e2 g7 e1N d6 Rh6 d7+ Kf7 e8B+ Ke7 e6 Rh4 Ne2 Rb4 Bb2 c1B Bg6 Rh4 Bg2 Ra6 Nf4 Qc7 d8R Qd6 Be4 Rh5 Qd4 Nh6 g8B Re5 Rd7+ Ke8 e7 a4 Ba2 Nf7 Ng6 Ng5 Nh8 Ra8 Rc7 Na6 b8R Qd7 b7 Ra7 Rg1 h1Q Ra8 h2 b8R Rb7 Rb1 Rb3 Rb4 Nc2 Rc6 Ne3 Rg6 Nf5+ Kg4 Nb8 Ra5 Nh4+ Kg3 Na6 Ra1 Qd5 Rb1 Be6 Ra1 Kd7 e8B+ Kd8 Bc6 Qd7 Bb7 Bc5 Rc4 Ba3 Rb4 Bd2 Rac1 Be3 Rc7 Bc1 Rd1 Qf1 Rbc4 Qd6 Rcg7 Qd7 Rb4 Qc4 Rh1 Bh3 Rbb6 Bf5 Rbf6 Be6 Rf4
8/1N2NbN1/p1rrRQ2/1k1r2n1/BN1p1n1R/rqRn3P/1N1R1R2/3b3K b - - 0 1 illegal: No possible last move
kQ1N1Rn1/rqRN2n1/1R1ppb2/3r1N2/3BRb2/4rP1q/RKN4p/2N5 b - - 0 1 illegal: No possible last move, all moves rejected
1b2qNBb/2N2r1R/4nN1K/1r2pq2/3p1NkP/5NbR/2bp2Q1/1RR2R2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Kf7 f6 Ke6 g4 Kd5 f7 Kd6 f4 h6 f5 Na6 g5 Nc7 Bd2 Nd5 Bc1 Ndf6 gxf6 Kd5 Be3 Kd6 Bg5 hxg5 Kd2 Ke5 c4 Kf4 b4 d5 h4 a5 b6 a4 c5 d3 b7 g4 b8R g5 b5 g3 b6 g2 b7 e6 c6 a3 c7 a2 Qc2 g4 Nc3 g3 Nce2+ Kg4 Ke3 Ne7 Rh3 Ra5 Rb1 a1Q Nf4 Rh7 Nf3 Bg7 f8N Qe8 f7 Rb5 f6 Ng6 Nd7 Bh8 f8N Qa5 f7 g1B+ Qf2 d2 Bc4 Bh2 Qg2 Rg7 Ra8 Rh7 b8N d4+ Ke4 Ba6 c8R Rg7 Ra7 Rh7 Qe2 g2 Bb3 g1B Rcc1 Rg7 Qg2+ Bg3 Rac7 Bc8 Na6 Bh2 Ra7 Rh7 Nc7 Rg7 Nh7 Ba6 f8R Bc8 Rf5 Nf8 Bd5 Bb7 Ke5 Ba8 Kf6 Bc6 Bc4 Be4 Rb7 Ng6 Nhf8 Bc2 Ne2 Nf4 Ra7 Nd3 Nf4 Rf7+ Kg6 Nc5 Bb3 Qa3 Ba2 Qd3 Kh6 Qe4 Re5 Qd3 Ree1 Qf5 Rf1 Rg7 Na6 Re7 Nh5 Rg7 Qf2 Bc7 Qg2+ Bhg3 Nf4 e5 Bg8 Bb8 Rb7 Ne6 Rc7 Qd3 Nf6+ Kf5 N6d5 Kg4 Rf7 Qf5 Nac7 Rg5 Rh7 Rg7 Qe2 Rd7 Qg2 Rf7 Nf6+
8/1N1Bb1Q1/K3P1RQ/7n/1k2nb1Q/2bp1b2/bN2NrQ1/QQ2B1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 a5 bxa6 Ra7 c4 Bd6 b5 Nc6 b6 Nb8 Ra3 Bf8 Rc3 Rb7 axb7 dxc3 h4 Ke7 e4 d5 Ke2 g5 Kd3 f5 c5 g4 c6 d4 Kc4 f4 Kb5 c2 h6 d3 h5 g3 c7 g2 h7 f3 e6 Kd6 e5+ Kd5 h6 f2 e7 Na6 e8N Qf6 b8Q Qh4 b7 Be6 c8Q Be7 Nd2 Bd7+ Qc6+ Kd4 Qc7 Qe4 b8Q Qf4 Nd6 Qf8 N2c4 Kc3 Nb7 Be6 Nb2+ Nc5 Bd2+ Kb3 Qa8 Qg7 Ne2 g1B Qg2 Nf6 Be1 Nh5 Qb1 c1B Qaa1 Ne4 Ka6 Rf8 h8Q Bf4 h7 Bgh2 Qd6 Bd2 Qd8 Bc3 Rg1 Bf4 Qd4 Qg3 Qg7 Rf7 Qd8 Kb4 h8Q Ba2 Qhh6 Qe3 Qd7 Qg3 Qdg4 Rf5 Qh4 Qh2 Rh1 Qg1 Rh3 Rf8 Rg3 Rf7 Rg6 Rf5 Qf3 Rf8 Bh3 f1B Bc8 Bg2 e6 Rf5 Qfh3 Bf3 Qg2 Bc1 Rf6 Bg4 Qgh1 Rf2 Qg2 Bf4 Rg6 Bf3 Bd7
Q2B1r2/1Q1bN3/1b5k/r1Br1BR1/8/QP1b2q1/nK3Q2/nbN1rQ1Q b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 b4 g4 b3 axb3 h5 gxh5 a5 Qc2 c5 Kd1 a4 Ke1 a3 Qd1 axb2 Na3 b1B Ra2 c4 Rc2 c3 Rb2 cxb2 h4 Kf7 f4 g5 d4 Kg7 Kd2 e5 Kc3 g4 f6+ Kh6 f5+ Kh7 h6 e4 d6 e3 f7 g3 d5 e2 h5 e1R d7 g2 d6 Be7 f8Q Ra6 f6 Qc7+ Nc4 Ba2 d8Q b1B d7 Bc2 f7 Rae6 Be3 Qc5 Kb2 Bd6 Ne5 Be4 Ng6 Nf6 Ne7 Qc7 Ne2 g1R Bh3 Bc5 Nc1 Qg3 Qb6 Bd3 d8B Na6 Qb7 Bb6 Bc5 Ne4 Bf5+ Rg6 Rh2 Bab1 Rg2 Nb4 Qd2 Rd1 Qf2 Rge1 Qf1 Nc2 Qf2 Qe3 Rg5 Nc3 Qf1 Bd7 Qf2 Rg8 Qf1 Kh8 h7 Na1 Qh6 B3b5 Bh3 Ba5 Qa6 Qg3 f8Q Na2 Q8f2 Be6 Bf5 Bed7 Qa7 Ra6 Qc6 Bc4 Qa4 Bb6 Qa3 Ra5 Qc7 Rg6 Qb8 Kg7 h8Q+ Kf7 Qh6 Rg8 Qc6 Bb5 h6 Rf8 h7 Rd5 Qcb7 B5d3 Q8a8 Kf6 h8Q+ Kf7 Qh5+ Kf6 Ng6+ Kg7 Qhf3 Kh7 Ne7+ Kh6 Q3h1+
2K3N1/1QN1rbp1/R1rP1nnb/Q1Nr2NB/1bk1b3/4Nb2/7B/3N2B1 b - - 0 1 legal: proof: c4 a5 b4 f5 e4 b5 exf5 d5 cxd5 Kd7 a4 Qe8 axb5 Na6 b6 Qd8 b5 Ke8 Ra4 Nb8 f4 Kd7 g4 Bb7 g5 Qc8 Rb4 axb4 f6 Ra3 f5 Rd3 h4 Rh3 h5 Qe8 h6 Rh2 g6 Qf7 gxf7 Bc8 Qe2 Rxh6 Qd1 Rh2 d4 Kd6 b7 e5 b6 h5 Ne2 c5 Kd2 h4 Ke3 e4 Kf4 h3 Na3 b3 Nc2 b2 Qd2 b1B Nc3 c4 Ne3 Rg2 Be2 h2 Ncd1 c3 Bh5 c2 Qa5 Nc6 b8B+ Kd7 b7 Na7 Ke5 Rg4 d6 Kc6 d7 Rh4 Ke6 Nb5 d5+ Kc5 d6 Be7 f8N Rh7 f7 Bg5 f6 Bh6 Ng6 Rh3 f8N Ne7 f7 Rf3 Bb2 c1R Be5 Rf4 Rf1 h1B Rf2 Bd3 Ra2 Bf3 Ra1 Rf5 Bh2 Rh8 Nh7 Re8 f8N Rd5 Ng5 Kd4 Bc7 Rc6 b8Q Nc3 Qb7 Bc4 Bb6+ Kd3 Qc7 Bb7 d8N Bb3 Kd7 Ba2 Nc2 e3 Nfe6 e2 Bbg1 e1B Nce3 Ne4 Nc5+ Kd4 Qc8 Bb4 Qb8 Ba8 Qb7 Bb3 Ne5 Ba2 N5g4 Ng6 Nf6 Re6 Ng8 Ree5 Nc2+ Kc4 Nde6 Nf6+ Kd8 Re3 Nc7 Re7 Kc8 Rd2 Nh3 Ra6 Qa7 Bae4 Ng5 Rc6 Nce3+ Kd4 Q5b6 Bf7 Ra6 Rd3 Qab7 Rd2 Nf5+ Kc4 Qa5 Rd5 Nfe3+
N1NBrrB1/4b3/1P1Q1n1R/1n1Q2b1/2knq2q/4QQ1Q/1q5r/Q1BKn3 b - - 0 1 illegal: No possible last move, all moves rejected
n1N4Q/R5bQ/KRR2kBn/1n1Pr2r/1BB3qn/6Bb/5Bb1/B2b2b1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Ba6 Na3 Nc6 Nc2 Bb7 axb5 Nb8 b6 Ba6 b5 Bc8 Nb4 axb4 Ke2 Kf7 Kd3 c5 Kc4 h5 f4 e5 d4 h3 g4 h2 f6 e4 f5 h4 b7 b3 g5 b2 d6 b1N b6 h3 Kb5 c4 d7 c3 d5 c2 Ne2 e3 Bb2 c1B Qd3 Bb4 g6+ Kf8 f7 Ke7 g7 Ra6 Ng3 e2 Ne4 e1N Nd6 Bc3 f8B+ Kf6 Ra2 Rh5 Ba1 Ra8 Ra7 Na6 b8B Nh6 g8B Ng2 b7 Nh4 Bh7 Be3 Bg6 Bg1 Bc7 Qe7 b8R Qe2 Rb6 Qg4 Qe4 Be5 Bc4 Na3+ Ka5 Nb5 Bb8 Kg5 f6 Nac7 d8Q Bf5 f7+ Bf6 Qd7 Bg7 Qd4 Bc2 Nc8 Bd1 Raa6 Ra7 Bb4 Na8 f8B Rc7 Qf7 Re7 Bg3 Re2 Bfd6 Re5 Qg8 Kf6 Ra7 Be3 Re1 h1B Bf2 h2 Qh7 Bg2 Ka6 h1B Re2 Bh3 Rc2 B1g2 Qc3 Bf4 Qb2 Bh2 Rc3 Re4 Bdg3+ Re6 Bf1 Bg1 Rcc6+ Kg5 Be2 Re5 Bc4 Re2 Bc3 Bf8 Ba5 Re7 Qbg7 Re5 Qgh8 Bg7 Nd6 Kf6 Bb4 Qd7 Nc8+ Qe6 Bd6 Qg4 Bb4+
Bnrk4/4n3/BB6/2RRqn1b/P1K1bbBq/3Q1B2/QN3n1Q/2bB2r1 b - - 0 1 illegal: No possible last move
1rNb1k1B/1Q1rr1P1/K2N2Q1/2B4B/2n2b2/Q3R3/1n1QqQ1Q/3bbqr1 b - - 0 1 illegal: No possible last move, all moves rejected
B1NqBN1B/2r5/N1bBP2Q/bBbr4/3Rbr2/3b3n/2Q3r1/K1Bb3k b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 a4 e5 axb5 e4 h4 Ba6 f4 exf3 h5 Nd7 Ra4 Bc8 Rf4 gxf4 b4 Ne5 g5 Ng6 hxg6 Bg7 Na3 Bh6 Nb1 Bf8 e4 Kd7 d4 Kd6 Kd2 c5 Kc3 h5 Kb2 a5 b6 f5 b7 f2 b8N c4 g7 h4 g6 c3+ Ka1 c2 b5 f3 b6 f4 b7 h3 Qd3 a4 Qc3 h2 Ba6 f1R Na3 f2 Nh3 f3 Nf4 Nf6 g8B Bd7 g7 Rh5 Ne6 Nh7 Bf7 Ng5 g8B Bc6 Bb5 Nh3 Na6 Rg1 Qc4 f1B Be8 f2 Bh7 Ra7 b8B+ Rc7 Qe2 Be7 Nf8 Rg2 Qe3 Bd3 Rd1 h1B Qh6+ Bf6 Bhg6 f1B Bf5 Bfe2 e5+ Ke7 e6 Kd6 Be4 Be7 Rd2 Bd1 Bf3 Rf5 Be4 Rf4 Bf3 Bh4 Be4 Bf2 Nc4+ Ke7 Bf3 a3 Nb6 Rd7 Be5 a2 Bh8 Kd6 Nb8 Kc7 d6+ Kb7 d5 Bc5 Nc8 Rc7 Kb2 a1R d7 Ra5 d6 Bce4 Na6 Bc6 Ba4 Rb5+ Ka1 Bce4 Bc3 Kc6 B3b2 Kd5 Bh8 Rb4 Bb5 Rd4 Ba3 c1B Bb2 Qf6 d8Q Ke5 Ba3 Rd5 d7 Kd4 Bb2+ Ke3 Qe7 Qg5 Qeh7 Qd8 Bbe5 B1a3 Bd6 Bab4 Qf5 Ba5 Qfh7 Bf1 Rd4 Kf2 Qf5 Kg1 Qfh7 Qh4 d8B Bfd3 Qf5 Qe7 Qfh7 Qd7 Bg5 Qd8 Q7g6 Rff7 Bc1 Rf4 Qf5 Re5 Qfh5 Bb7 Nb6 Rc2 Bd5 Bhe4 Qg4+ Kh1 Nc8 Rg2 Qe2 Ba8 Bdc6 Rd5 Qc2 Bb7 Nb4 Ba6 Ba8 Bb7 Na6 Bc6 Qb3 Rgg5 Qa4 Rg2 Qc2
R2Rnnb1/1Q4N1/1nN1Q1b1/3kn1rB/nq2R1N1/7N/3PK2p/r3N1Nr b - - 0 1 illegal: No possible last move
3R3k/n1nQQ2r/3B1Qq1/1B2NQnQ/b4p2/1B2n3/Q1r2P2/bK2brN1 b - - 0 1 illegal: No possible last move
b2Nr3/3k2Q1/Qb2nB1B/R2rRn2/1b4q1/P1QqQ1R1/4QK1p/2bQ2r1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 h4 a3 h5 g6 bxa3 Qd7 a4 Qd6 a5 Qd8 g4 Bh6 g5 Bg7 Be2 Be6 h6 Bc8 Bh5 Bf8 Nc3 gxh5 g6 Kd7 g7 Na6 Nce2 Ke8 Nf4 Nb8 Ng6 hxg6 f4 e5 d4 c5 d6 b5 d5 b4 h7 c4 a6 e4 a7 c3 f6 g5 f5 g4 f7+ Kd7 f6 h4 Ne2 g3 Nf4 h3 Qe2 e3 Ne6 Nh6 g8R g2 Rg3 g1B a3 Qe7 Nd8 b3 Rb1 Rg8 h8Q Qe6 Kf1 Be7 f8Q c2 f7 h2 Qc3 b2 Qfg7 Bb7 f8Q Nc6 Qf4 Qg4 Qfe5 Rb8 a8Q Re8 Qaa6 Nd4 Kg2 Bf2 Re1 Ne6 Qed4 Rc8 Kf1 Rc5 Qdd1 Kc8 d7+ Kc7 Qdd4 Ba8 Bd2 Nf5 d6+ Kb8 Rbd1 b1Q Qe4 Qb5 Bc1 Re5 Rd5 Qd3 Ra5 Rd5 Nb7 Rb5 d8B Rc5 d7 Bf8 Bf6 Qd5 Q2d3 Kc7 Qdd2 e2+ Kg2 Qd4 Qdg5 Be7 Bd2 c1B Qgf4+ Bd6 Qfe5 Qc4 Bh6 Rb5 Qed3 Bb6 d8Q+ Kc6 Qdc2 Bb4 Qdd1 Rc5 Qed4 Rd5 Nd8+ Kd6 Kf2 Qd3 Reg1 e1R Re3 Ng3 Qce2 Nf5 Rgg3 Rh1 Re5 Rg1 Qg6 Kd7 Qde3 Qh4 Qg8 Qg4 Qg7+
Qnn3KN/n1Qb1n2/3q2Rk/bN2NQ1N/1q1P1b2/6p1/5Rrr/1N1BN3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 c5 Kd3 e5 Kc4 a5 h4 f3 d4 f2 h5 e4 d6 e3 Kd5 c4 h6 g4 b6 g3 f6 e2 b7 e1Q g7 Kf7 h7 Kg6 f7 a4 d7 a3 b4 a2 b5 c3 b6 c2 Nf3 c1B Be2 f1N Ke6 Be3 Qc1 Ra7 Qc7 Bg1 Rh2 Ba3 f8Q Ne7 g8N Nd2 Rf2 Nc4 Nf6 Nd6 Nh5 Bb4 Qf5+ Kh6 Kf6 Nf7 Bd1 Qf8 d8N Bd7 Nc6 Ba5 Nce5 Qb4 Ne1 Ra8 Qc6 Nc8 Qc7 Na6 b8Q Qfd6+ Qe6 Ra7 Qa8 Nb8 b7 Ra6 Rc2 Be3 Rf2 Rf8 h8N Bf4 Nc6 Rg8 Na7 Rc6 Nb5 Rc2 Rf1 Rg2 Rf2 Nc6 b8N N6a7 Nc6 Rg5 Ng7 Rh5 Ne5 Rhh2 Nh5 Be3 N1c3 Bf4 Rc1 a1N Nb1 Nb3 Rc6 Nc5 Rb6 Qd5 Qf5 Na6 Re6 Nb8 Rc6 Ncd6 Ke7 Qe6+ Kf8 Ndc8+ Kg8 Qed6 Rc3 Bg5 Rcf3 Bc1 Rf4 Be3 Rg4 Bf4 Rg6+
Q4krn/4R1b1/n3KQR1/BrqB1p1Q/1b3qR1/1Q2QP2/3nq3/nNQ5 b - - 0 1 illegal: No possible last move
n1q1Q2B/2b1q2R/n5B1/1pk2R2/2r1qN2/K2bBb2/P3B1B1/1qQQ1r1B b - - 0 1 illegal: No possible last move
4r1k1/N4b1n/1N2nN1r/4r3/KB5N/5QQ1/p2PNBr1/NQbRrr1q b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 f4 h6 g4 Kf7 b4 Ke8 f5 Qd7 Ra3 Qd6 Be2 Qd8 Rf3 h5 Rf4 gxf4 g5 Bh6 Bf3 Bf8 Bg4 hxg4 h4 Kf7 d6 c5 g6+ Ke8 h5 e5 f7+ Kd7 b6 a5 b5 a4 h6 f3 b7 e4 h7 e3 g7 g3 b6 e2 f6 Ke6 d7 c4 Bb2 g2 Bd4 c3 Na3 c2 Qb1 Bb4 f8Q Na6 b8N Nc7 b7 Na6 f7 Nf6 g8N Ng4 Nh6 Nf6 Ng4 Nc5 Nc6 Qb6 b8N Qb7 d8Q Bc3 Qdb6 Bb2 Qc7 Bd7 Qg3 Be8 Na7 c1R+ Kf2 Rd1 Ke3 f2 Nc2 a3 Nd7 a2 Nb6 Bc1 Na1 Rd8 Qh6 Qc6 f8B Kf7 Qhf4 Ne6 Bb4 Kg7 Kd3 Bf7 Qe4 Rde8 Qf5 Qa8 Kc3 Qc6+ Kb3 Qb7 Nf3 g1R Nh4 Qg2 Qfd3 Qf1 Ka4 Rg2 Bdc5 Qg1 Qdf3 Qh2 Re1 f1R Bf2 Qh1 Be7 Rhg8 h8N Nh7 Bf6+ Kf8 Bc3 Rg6 Ba5 Rh6 N8g6+ Kg8 Nf4 Ba3 Bc3 Rc1 Ba5 Rc5 Bb4 Bc1 Rd1 e1R Ne2 Re5 Nf6+
3R2k1/4p1nb/r2b4/6N1/1QRbR3/bP1KR1BR/RbrQBq2/5rBq b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 a4 h5 axb5 Nd7 f4 Ngf6 g4 hxg4 e5 Ng8 Nc3 Rb8 Ne4 fxe4 f5 Ndf6 exf6 Ra8 Ke2 Kf7 h4 g5 d4 a5 d6 c5 d5 g3 b6 g4 h5 e3 h6 a4 h7 a3 d7 a2 b7 g2 b8Q g3 d6 c4 b3 c3 Nh3 g1B Qd4 c2 Kd3 e2 Be3 c1B Qbb4 e1Q Be2 Bh2 Bg1 Qb6 d8R g2 d7 Ba3 Re8 Bg3 d8R Nh6 Qdc3 Bc7 Qd2 Bg7 Rd4 Qb7 Red8 Ra6 Re4 Bd6 Re3 Re8 h8B Qf2 Ng5+ Kg8 Rhh3 Rf8 Rc1 a1R Rc4 Rf1 Rce4 Be6 Ra8 Rc8 f7+ Kf8 Ra7 Bgb2 Be5 Rc2 Bg3 Kg7 f8R Bg8 Rd8 Bh7 Rc8 Qa8 Rc6 Kg8 f6 Nf5 Rcc4 Qc6 B1h2 g1B f7+ Kg7 f8R Qb7 Rf6 Kg8 Rf7 Ng7 Rf5 Qg2 Rd5 Bf2 Bg1 Qb6 Rf3 Bfd4 Re3 Qh1 Ra8+ Qb8 Ra5 Qf8 Rd8 Bc1 Rd7 Qf2 Ra4 Bab2 Ra1 Ba3 Ra2 Bcb2 Rd8+
1RK2B2/1Np3Rb/3bQRQ1/2qR4/nr2q1Q1/qk4q1/3nP3/1Rb1R1nB b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Na3 a5 Nc2 h5 Ne3 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Ne7 Ng4 hxg4 Ra3 Ng8 Ra4 Kf7 Ra1 Ke8 Kf2 Kd7 h4 Kd6 d4 g5 b4 a4 h5 a3 f6 a2 f7 Qe7 b6 Qe4 b7 Bh6 f8R Be6 b5 Qe5 b6 Nf6 Qb3 Bd7 Bg2 Ba4 Nh3 Qe8 Ba3+ Kd7 d6 Kc6 d7 Na6 d8R Qe4 b8Q Nc5 Qe6+ Kb5 d5 Kc4 b7 Bc2 Qbc8 Kb3 Rhe1 Na4 Bh1 Bb1 Rd7 g3+ Kg1 g2 Kf2 g1N Rg7 g4 Ng5 Rh7 Nf7 Bc2 Nd8 g3+ Kf1 g2+ Kf2 Bg5 h6 Rh8 h7 Rg8 Rac1 a1B h8Q Be5 Qh7 Bd6 Ra1 Rh8 Qg6 Rh4 Bb4 Rg4 b8R Bd3 Rf1 Rh4 Nb7 Bh6 Ke1 f2+ Kd2 Rg4 Rfe1 f1Q Qcd7 Qf2 Ba3 Rh4 Qeg4 Qc5 Qde6 Nh7 Rf5 Ng5 Rf6 f3 Bb4 f2 Ba3 f1Q Bb4 Bg3 d6+ Kb2 d7 Qff3 d8R Bd6 Ba5 Qa3 Bb4 Qg3 Bc5 Bf8 Rd5 Bd6 Q4f5 Rf4 Qg4 Kb3 Bb4 Qf5 Bc5 N5f3+ Ke3 Be4 Bb4 Nd2+ Kd4 Bg5 Q4h5 Rh4 Qg4 Qff3 Q6h5 Bh7 Qg6 Nf1 Bc5 Bc1 Bb4 Qf5 Bc5 Qc2 Bb4 Qc6 Ke4 Nd2+ Kf5 Bf4 Bf8 Bd6 Qe7 Qc4 Ke6 Qe4+ Kd7 Qee3 Q4h5 Rb4 Qe6 Qe4 Qhg4 Nh3 Qh4 g1Q Kc8 Qc5 Qhg4 Ng1 Rb1+
2QNrQ2/2k1Q3/3n1bQ1/3r2B1/Nb1p2B1/b1bnQKB1/1rbP1n1Q/4R3 b - - 0 1 illegal: No possible last move, all moves rejected
4RN2/r4B1r/q1rbP1Qn/R1QBp1B1/B1n2R1K/5r2/1BnB4/n4kn1 b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 h4 gxh4 c4 Bg7 a4 Ne7 axb5 Bb7 b6 Bf8 b5 Bc8 b7 Ng8 e4 Ke7 e6 d6 e5 f6 b6 Bg7 Nd2 Bd7 Ndf3 Bb5 cxb5 Kf8 e7+ Kf7 e6+ Kg6 Ne5+ fxe5 Kd2 Bf8 Ke1 Kf6 e8B Kf5 g4+ Ke4 f4 a5 Kf2 c5 f5 h5 f6 h3 Kg3 h4+ Kf2 a4 f7 c4 g5 h2 g6 c3 g7 c2 Bd2 c1R Be1 a3 Nf3 h3 Kg3 Ke3 Nh4 a2 Bc4 d5 Qc2 d4 Qg6 d3 Bd5 Ke2 Rf1 h1R Rf4 h2 Bd2 Nc6 b8Q Qc8 b7 Ra7 b6 Bd6 f8B Nh6 g8B Nd4 Ba4 Nc2 Qc7 Rh7 b8R Qa6 b7 Rhf1 Re8 h1N+ Kh3 Rf2 b8B Kf1 Be7 Ng3 Bf7 Ne2 Bg5 Ng1+ Kg3 Nh3 Qc5 Ng1 Ng2 Rf3+ Kh4 Qa5 Bc7 Qa6 Bc3 d2 B7a5 d1N Bb2 Nde3 Bd2 Nc4 Ne3+ Ke2 Ng4 Kf1 Nf6 Qa5 Nd7 Qa6 Rb1 a1N Nf8 Nb6 Bbc3 Nc4 Rb5 Rb1 Ra5 Rb6 Bd4 Rc6 Bb2
rkB2N1r/bpqnK1B1/b3b2B/4r2Q/P2Q2b1/2q5/3B2R1/1rBB1RR1 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 f5 exf5 d5 cxd5 Nf6 b4 Ng8 f6 axb4 f5 Qd7 Qc2 Qd6 Qd1 Qd8 g4 Ra7 h4 Be6 h5 Ra8 Nc3 Nd7 Nce2 Ne5 Nf4 gxf4 g5 Ng6 hxg6 Bc8 Kf2 Kd7 Kf3 h5 Ke4 e5 d4 c5 a4 Kc7 g7 h4 g6 c4 f7 f3 f6 c3 d6+ Kb8 Kd5 h3 d7 c2 Ke6 b3 d5 f2 d6 h2 Ne2 b2 Nf4 b1R Rg1 h1B Be2 Be7 f8B f1B f7 Nh6 g8B e4 g7 e3 Ng6 Nf5 Qd4 Rb5 Bd1 e2 Qd5 Ng3 Qh5 Bf3 Bh7 Rb2 g8R Qa5 Bfh6 Qc3 f8B Rb1 Bfg7 Ne4 Nf8 e1R Bf5 Nc5+ Kf7 Re2 d8Q Re5 d7 Ba6 Qb6 Bfe2 d8B Nd7 Qd4 Bc5 Bdg5 Ba7 Bgd2 Bg4 Rf1 Nc5 Kf6 Be6 Ke7 Nd7 Bf6 Bge2 Rg2 Bg4 Bfg7 Qc7 Rfg1 Qc3 Ra3 Qc7 Rf3 Qc3 Rff1 Qc7 Ba3 c1Q Bb2 Q1c4 Bbc1 Qc3 Bf3 Nc5+ Kf6 Bec4 Bc8 Bce6 Bd1 Nd7+ Ke7
n1nN2BQ/1Kp3Nq/QRPB4/1N2N2b/3rq3/N1rN1b1B/1p1k4/1q3b2 b - - 0 1 legal: proof: f4 e5 e4 a5 d4 f5 dxe5 h5 exf5 Rh6 b4 axb4 g4 Ra4 g5 Ra8 a4 Rh8 Ra3 Bd6 Rg3 Be7 Rg4 Bf6 gxf6 hxg4 Kd2 Kf7 Kd3 d5 Kd4 b5 Kc5 g5 h4 g3 c4 d4 e6+ Ke8 a5 g4 e7 Kd7 e8N g2 h5 d3 h6 d2 a6 b3 h7 b4 f7 g3 f8N+ Ke7 a7 b2 f6+ Kf7 f5 b3 Ne6 Qd7 Na3 b1B Nh3 g1Q+ Nf2 b2 Rh6 g2 Qa4 d1B N6g7 Qh2 Nd3 Qh1 Qa6 Ne7 Bf4 Bh5 Bd6 Bb7 Rg6 Rg8 h8Q Bbf3 Rh6 Qe6 Kb5 g1Q c5 Nc8 Bh3 Nd7 Ka5 Rb8 a8B Qg6 Bd5 Ndb6 Kb5 Qh7 Kc6 Ra8 Kb7 Ba2 Rg6 Qb1 Rh6 Bc4 Rg6 Ne7 Rh6 Rd8 Rg6 Kf8 f7 Na8 Be5 Qf6 Nf2 Qc2 Nd6 Bfg4 Nge8 Qe6 Ndb5 Bf1 Ba2 Qec4 Rb6 Q4e4+ c6 Nc8 Be6 Ke7 f8N Qb1 Nd7 Rg5 Bg8 Bd1 Bh2 Rg3 Ng7 Rb3 Nd3 Bdf3 N7c5 Kf6 Nd7+ Kg5 f6 Rc3 f7 Qh4 f8N Q4e4 Nb8 Rd4 Nfe6+ Kh6 Nd8 Kg5 Bg2 Kg4 Bd6 Kg5 Nd7 Kg4 Nf4 Kg3 Ne5 Kf2 Bh3 Ke1 Nfd3+ Ke2 Bc4 Kd2 Bg8
bK3B2/2BR1n1R/3B4/2q3N1/1B1QBpp1/1r2P2b/RQnrk3/1n2bBn1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 e6 b4 exf5 b5 Bb7 Na3 Ba6 Nb1 Bc8 h4 g5 hxg5 Qd7 g4 Qe7 g6 Qd8 g5 Nh6 Na3 Nd7 Nc2 Ng8 Ne3 Nb8 Ng4 fxg4 Kf2 Ke7 Ke3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 h5 d4 a5 e3+ Kc3 g7 f5 d6 c5 d5 h4 g6 c4 b6 f4 b5 a4 d7 h3 b7 a3 b6 a2 d6 h2 Bg2 Ne7 g8B Qc7 d8R Ra3 g7 Rb3 Bd2+ Kd3 Rd7 c3 Nh3 c2 Ng5 c1N B8d5 Qc5 g8Q Ne2 Qg7 Nbc6+ Ke6 Rh7 b8B Ba6 b7 Ng1 Bc7 Ne5 b8B Nf7 Qb2 Bg7 Bb7 Nd5 Bc6 Nc3 Bce4+ Kc4 Be1 Nb1 Bb4 Bc3 Ke7 Be1 Qdd2 Nh8+ Kd8 Bb7 Qd1 Ba8 Kc8 Nf7 Qdd2 Rh3 Qd1 Rf3 Qdd2 Rf2 Qdd4+ Kb5 Rd8 Rd2 d7 Qf5 Bcd6 Qd5 Bbc7 Qc5 Qe5 Kc4 Kb8 Rd1 Bf8 Rd4 Bcd6 Rd2 Bef3 Kd3 Be4+ Ke2 Qed4 Kd1 Rc8 Ke2 d8B Na3 Rd1 a1N B8c7 N1c2 Ra1 Nb1 Rd8 Qa5 Rd7 Qc5 Ra6 Nh3 Rf1 h1B Ra2 Ng1 Rf3 Qf5 Rh3 Qe5 Rh4 Qc5 Bh3 Bg2 Rh7 Bf1 Bhg2 Bf2 Bh1 Bh3 Bhg2 Be1 Bf1+
3q1QN1/2kQ4/QRNr4/1p2p3/n2QQ2b/b3rn1B/1Pb2Q1b/Kn2N1R1 b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nf6 g4 Ng8 gxh5 b5 a4 bxa4 d3 Na6 Be3 Nb8 Bb6 axb6 Kd2 Kd7 Kc1 g5 h4 e5 f4 c5 f6 c4 f7 b5 f5 g4 f6 a3 h6 g3 d4 a2 d6 c3 h7 c2 h5 g2 d5 Qe8 h6 Ra4 Nd2 Ra6 Ngf3 g1B Ne1 Bb6 Bh3+ Qe6 Rg1 Nc6 Ne4 Ba7 Qd4 Nge7 Rg6 Kd8 d7 Kc7 d8N Qd7 Rb1 Rg8 h8Q a1N h7 Rb6 Rh6 Rg3 Qg7 Rb3 h8Q Re3 Qg4 Qe8 Qh7 Bf5 Qhg6 Nc8 Qg2 Ba3 f8Q Ra6 f7 Nb6 Nf6 Na4 Ng8 B7c5 Qf3 Be7 Qfe4 Bh4 Qfc5 Qd7 f8Q Qc8 Qe6 Bh7 Qf2 Qb8 Qcf8 Bg6 Qd1 Nd4 Nc6 Nf3 Qdd4 Qd8 d6+ Kb7 d7 Kc7 Nb4 Rd6 Nc6 Nh2 Kd2 c1B+ Kd1 Nb3 Kc2 Bh7 Ra1 Nf3 Kb1 Nbd2+ Ka2 Qf6 Rg6 Nb1 d8Q+ Kb7 Qa8+ Kc7 Qa6 Qd8 Rh6 Rc3 Rg6 Bf4 Qee8 Bh2 Rh6 Nbd2 Rb1 Bf5 Ka1 Re3 Qf4 Bc2 Qfe4 Qg5 Na7 Rb6 Nd3 Qg7 Rg1 Qf6 Ne1 Nb1 Qe6 Qd8 Q6f5 Rf6 Qfg4 Rf5 Rb6 Rf6 Nc6 Rd6 Qd7+
Rkr3QK/1Nb5/pB4r1/3N1nR1/r1brPR1N/N2p4/2nN4/1NqQ1b2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 gxf5 Nf6 d4 cxd4 Bh3 Ng8 Bg4 hxg4 Kd2 d5 Kd3 Kd7 b4 Kc7 c4 g5 e4 g3 h4 g2 f6 g4 b6+ Kb7 e6 g3 h5 Bd7 h6 Qe7 f7 Bc6 h7 Qh4 e7 Qh2 e8N Qh6 c5 Qe6 b5 Bd7 c6+ Kc8 b7+ Kd8 b6 Qe5 c7+ Ke7 c8N+ Kd8 Nc7 Bd6 Rh5 Qg5 Nf3 g1R Be3 g2 Ne7 Na6 b8N Nh6 b7 Nf5 Nfd2 Be6 Nb5 Bc7 Nd7 Re8 h8N Nb4+ Ke2 d3+ Kf3 d4 f8R Bb3 Nd5 Nc2 N5a3 Bc4 Nc5 Rh1 Ra2 g1R Ng6 Qh6 Nh4 Rg6 Rf7 a6 Rg5 Rc8 Kg4 Re7 b8Q Rd7 Rb2 Rh3 Rb7 Rf3 Ndb3 d2 Ra7 d3 Bd4 Rf1 Rf6 Rd6 Nb7+ Kd7 Bb6 Re1 Qe2 d1B N3d2 Rf1 Qf3 Be2 Kf4 Rc1 Ke5 Bf1 Qd1 Kc6 Nbc3 Ra1 Ncb1 Ng3 Rf4 Nf5 Nf6 Rd5+ Ke6 Ra2 Kf7 Rd4+ Nd5 Kd7 Nb5 Ra4 N5a3 Rcg8 Qf8 Rh8 Qg7 Kc8 Qh7 Kb8 Qg7 Rc8 Qf8 Rc6 Kg8 Qd6 Kh8 Qc5 Qg8 Rg6 Qh5 Qa5 Qd1 Qc3 Qf8 Qb2 Qg8 Qc1 Ra8+
q2n4/3n2Pq/B2B4/nQrkN1nN/rbNNp1N1/1p1b4/5B2/QN3RK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h5 g4 Nc6 g6 Nb8 g5 Ra5 Bg2 Ra7 Bf1 Ra8 a4 Qd7 Ra3 Qd6 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 d4 Kd6 h4 c5 g7 b5 g6 e5 h5 e4 f6 b3 h6 b2 f7 b4 h7 c4 a5 c3 a6 b3 a7 c2 Qe2 Be6 Nh3 g3+ Kg1 g2 Be3 c1N Nf2 Bh3 Ng4 Nh6 g8N Nf5 Qb5 Qb6 Bf2 Ng7 N8f6 Ne6 Nh5 Nd7 g7 Rc8 a8Q Nd8 Qa1 Qa5 Bc4 Be7 f8B Na2 Bf1 Rg8 h8N Qa8 Ng6 Rc5 N6e5 Nb4 Bd3 Nbc6 Nc4+ Kc7 Bf1 Na5 Be2 Rh8 Bf1 Rh6 Be2 Ra6 d6+ Kc8 d5 Ra7 Nc3 b1Q+ Bf1 Qc1 Nb1 Qh6 Be2 Qh7 Bd3 Nb6 d7+ Kc7 d6+ Kb7 Qb4 Kc6 Qb5+ Kd5 Be2 Nf7 d8N Nd7 Nc6 Nd8 N6e5 Ra6 Kh2 Ra7 Rf1 g1N Bd3 Nf3+ Kh1 Nb8 d7 Ng5 Kg1 Bg2 Be2 Bf3 Bd3 Bd1 Be2 Bc2 Bd3 Bd6 Be2 Bd3 Be7 Ndf7 d8N Nd7 Ne6 Nd8 Nd4 Nac6 Qb4 Ra4 Qb5 Na5 Qb6 Rc7 Qb5+ Bc5 Bd6 Rc8 Qb6 Bb4 Qb5+ Rc5 Nca3 Qh6 Qb8 Bc2 Ba6 Bd3 Qb5 Qh7 Nac4
1rQ1Rn1q/KRQ3pq/2pqRbR1/3n2kB/6Nr/7P/1b2RNq1/6QR b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b3 f5 Ba3 h6 Bd6 f3 Be7 f4 Bg5 Bf5 gxf5 hxg5 Kf2 Ke7 e4 Kf6 d4 a5 b4 g4 e5+ Kg5 d6 c6 f6 a4 d7 a3 b6 a2 f7 Kg6 b5 Na6 b7 Rh6 b8Q Bb4 f8R Qa5 d8R Kh5 e6 Ne7 b6 Kg5 d5 Rh7 d6 Ng6 e7 Kh4 e8R Nc7 d7 Qf5 h3 Ra5 b7 Ne5 Rf6 Nd5 Rh6+ Kg5 Be2 Rb5 Nd2 Be7 Qc7 Bf6 b8R Ng6 Rb7 Nf8 Re6 Rb6 Rc1 a1B Rc2 Bab2 Rde8 Rh8 d8Q Qh7 Qdc8 g3+ Kf1 f2 Bh5 g2+ Ke2 Rb4 Qa1 Re4+ Kd3 f3 Qe1 Rh4+ Ne4+ Kf5 Kc4 f1Q+ Kc5 f2 Qb1 Qd1 Nf3 f1Q Nf2 g1Q Nh2 Qgg2 Rce2+ Kg5 Nhg4 Rg8 Qa1 Qdd3 Qa7 Qfd1 Qa1 Qh8 Qb1 Q1d2 Qe1 Qdh7 Qg1 Ne7 Kb6 Qd6 Ka6 Nd5 Ka7 Ng6 R8e7 Rd8 Re8 Nf8 Q8d7 Rb8 Qdd8 Qhe4 Qdc8 Qeh7 Rg6+
5Qrr/1Bb1NQ2/3p1Q2/2qQ4/1QR3rP/3rqp1K/3rQ1R1/RnB2nk1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 f4 Ke1 Bb7 Nd2 Be4 Ndf3 Bf5 gxf5 h6 Ng5 hxg5 Bd2 g4 Be3 Qc8 Bc1 Qd8 Kf2 Kf7 Kg2 a5 h4 g5 b4 a4 c4 a3 e4 a2 c5 g3 e6+ Kf6 c6 Ke5 c7 d3 c8R Kd4 e5 d2 f6 Ke3 e7 f3+ Kh3 Kf2 e8Q g2 b6 Qe7 b7 Nh6 b5 Ng4 f7 Nh2 b6 Nc6 b8Q Na5 b7 Nb3 Ba6 Nf1 Rc4 Qc5 e6 Bd6 Qbd8 Bc7 b8Q d6 Ne2 g1R e7 Rg2 Rb1 a1Q Nc3 Qaa3 Qc6 Qe3 e8Q Qac5 Qbb7 Rc8 Qc2 Rb8 Qd3 d1R Qf6 Nbd2 Ra1 Nb1 Qb4 Ra8 Qed7 Rag8 f8Q Rh2+ Kg4 Kg2 Nd5 Kf2 Rg1 Rg2+ Kf5 g4 Bb7 g3 Qh7 Rh2 Qhf7 g2 Qdd2+ Qe2 Qdb2 Rd3 Qbe5 Qd2 Ne7 Qe1 Qcd5 Qe2 Rh1 g1R Qee4 R1g7 Rg1 Qd2 Rg5 Rg2 Qee5 Kg1 Qeb2 Qde3 Qa2 Ng3+ Kg4 Nf1+ Kh3 Rg6 Rg3 Rg4 Qad2 Kh1 Qd1 Rf2 Rg2 Rfd2 Rh2+ Kg1 Qe2 Qe6 Rf2 Qee3 Rg2+
2bq2bQ/R1B1r3/1qQQB1Q1/2QRp3/1B2r3/2n3q1/r1Q1Pp2/2Nqk2K b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 b5 axb5 e6 g4 Ke7 f5 Kd6 f6 Be7 fxe7 Kd5 Be3 Kc5 Bc1 Kd6 Kd2 h5 Ra3 Na6 Ra4 Nc5 Na3 Ne4+ Ke1 Ng3 Ra5 Nf5 Nc4+ Kd5 Ne3+ Ke5 Kd2 Kf6 Ke1 Kg6 Ra3 f6 Ra6 Kf7 Ra1 Nh4 Ra3 f5 Ra6 f4 Ra1 Nf5 gxf5 Qc7 Ng4 hxg4 Ra2 Qb6 Ra1 Qd8 Kf2 Kf6 Kg2 Ke5 e8Q Ke4 c4 a5 b4 g5 h4 d5 b6 f3+ Kh2 d3 c5 d2 c6 Ke3 b7 Kf2 b8B d4 c7 d3 h5 e5 f6 a4 h6 a3 f7 a2 f8Q Rh7 b5 Nf6 b6 Ne4 b7 Ra4 Bh3 Nc3 Qc2 d1Q Ba3 d2 Bb4 Re7 h7 Ke1 h8Q f2 Qeg6 g3+ Kg2 g4 Qff6 Qb1 Qc6 d1B Qc5 Qb3 Qcc6 Qe6 Qc5 Qb6 Qcc6 Bf5 c8Q Bd7 Bc7 Bf5 Rb1 a1R b8Q R1a2 Ra1 Be6 Qc5 Bg8 Qcb7 Be6 Qbc6 Bc8 Ba5 Re4 Bb4 Rb2 Ra7 Ra2 Qd3 Bb3 Qc2 Qa6 Qbb6 Bg8 Q5d6 Qf8 Qbc5 Qb6 Rh2 Qf6 Kh1 Qh4 Bg2 Qf6 Rh4 Qf8 Bh3 g2+ Kh2 Qd8 Nf3+ Kf1 Nd2+ Ke1 Rh6 Ra1 Nb3 Ra2 Kg3 g1Q+ Bg2 Rh7 Nc1 Re7 Rh4 Qh1 Bh3 Qf3+ Kh2 Qd3 Ra3 g3+ Kh1 Qd1 Ra7 g2+ Kh2 Re3 Rd4 Re4 Be6 g1Q+ Kh3 Qg5 Kh2 Qe3 Kh1 Qg3 Rd5
3Q1Q2/4Rb1N/1qQpPk2/6nQ/BB3p1q/q2rQ2N/1rQ1B1r1/2Knr3 b - - 0 1 illegal: No possible last move
1Q4br/Q2NrQ2/Kp1q1rQ1/1Brn4/2NP2B1/k2q1n2/2Q2pQ1/2BRq3 b - - 0 1 legal: proof: b4 a5 c4 axb4 a4 e5 f4 d5 cxd5 f5 g3 h5 Ra3 Bc5 fxe5 f4 Re3 f3 Re4 Be3 Rg4 Bf4 gxf4 hxg4 d4 Kd7 Kd2 g5 Kd3 c5 Kc4 b3 Kb5 b2 h4 f2 e4 b6 d6 g3 a5 g2 f5 g4 a6 g3 f6 c4 f7 c3 f8Q c2 a7 Qg5 h5 Qg6 h6 Ne7 h7 Na6 Bg5 c1R Na3 Ke6 d7 Nb8 d8Q Qh6 Be2 Nd7 Qc7 Qf6 Nf3 g1Q Nc4 b1R+ Nb2 Rc4 Qc2 Qf1 Rg1 Re1 Bc1 Rg8 h8Q Rb8 a8Q g2 Qca7 Rg6 Q8b7 Qf4 Ka6 Rf6 Rh1 g1Q Qfg8+ Rf7 Qg2 Rc5 Qhg8 Ra8 Q8g6+ Rf6 Bb5 Qf5 Be2 Qh2 Bb5 Re3 Rg1 Qe2 Rd1 Qe1 Be2 Nf8 Bb5 Nh7 Be2 Ng5 Bb5 Bd7 Qc7 Rh8 Qcb8 Be8 Be2 Bf7 Bb5 Bg8 Be2 Rc7 Qf7+ Kd7 e6+ Kd6 e5+ Kd5 Qg6 Nc8 e7 Rc5 e8Q Ne7 e6 Qd6 Ne5+ Qe4 Bg4 Nf3 Qef7 Qd3+ Kb7 Nc6 Nd7 Nb4 Qa6 Re4 e7+ Ree6 Ka7 Kc6 Qa3 Kb5 Qa1 Nd5 Kb7 Kb4 Qaa7 Rc4 Ka6 Ka3 e8B Qed2 Nc5 Re7 Bb5 Qe1 Nd7 Rc5 Nc4+
1B4B1/bq1bB3/1pB2qP1/5nNn/3p3Q/1rQRqn2/3nk1KB/1R1RB3 b - - 0 1 legal: proof: c4 a5 g4 g5 d4 f5 gxf5 e5 h4 g4 b4 axb4 d5 Ra6 Nc3 Rg6 Na4 Rg5 hxg5 d6 Nc5 Qe7 Ne6 Qd7 c5 Qd8 Nd4 exd4 cxd6 Bg7 Rh3 Bh6 Rh1 Bf8 e4 Kd7 a4 h5 f4 c5 Kf2 b3 a5 h4 a6 c4 f6 h3 e5 c3 e6+ Ke8 a7 b2 a8R b1N e7 Kf7 d7 Kg6 e8B+ Kf5 d6 Ke4 f5 h2 f7 c2 f6 b6 g6 Rh5 Bc4 Bg7 f8B Rh6 f7 Nc6 Qd2 Nce7 R8a3 Nf6 Nf3 Rh3 Rd1 h1Q Bb2 c1Q Bc3 Nh5 Ng5+ Kf5 Qc2+ Kf4 Be1 Be5 Bg7 Qe4 f8B Qb7 Bg8 g3+ Kg1 g2 Qb3 Qdc7 d8B Qc7c6 d7 Bb8 Bc7+ Kg4 Qe3 Ba7 Bge5 Qf6 Bb8 Rg3 Kh2 g1N Qd2 Rf3 Kg2 Qc3 Qc2 Nd2 Rab1 Qb3 Bh2 Qbe6 Ra5 Qee4 Rf5 Rb3+ Rf3 Qee6 Qc3 Qee5 Ne4 Qef4 Rd3 Qe3 Kh1 Kf3 d8Q Qg5 Bb5 Nf5 Bc6 Ke2 Bb4 Qge7 Kg2 Ngf3 B4d6 Qf7 Qh4 Bd7 Ng5 Qf6 Be7
4nNN1/1q2p1r1/3k1r2/1NR1r3/1nKPB1Q1/r1pNQ1q1/QR1q4/3NN2b b - - 0 1 legal: proof: c4 b5 f4 f5 a4 d5 cxd5 Qd6 axb5 Qd7 e4 fxe4 g3 Qd8 b3 g6 Bb2 Bh6 f5 Bf4 Bf6 h6 Bg5 hxg5 gxf4 Bd7 Nc3 Be6 Nb1 Bc8 Ke2 Kd7 d4 c5 h4 a5 h5 g4 b6 g5 f6 c4 h6 a4 f7 e3 f8Q a3 h7 a2 f5 g3 f6 g2 b4 g4 b5 g3 d6 Ra5 f7 Ke6 b7 Nd7 b8N Kd5 b6 Nh6 b7 Qb6 Rh5+ Ne5 d7 Rc5 d8Q+ Qd6 Nc6 Ng4 b8N Nh6 Nc3+ Ke6 Na6 Nf5 Nf3 g1Q Nab4 g2 Nd3 Qd5 Rb1 a1R Nfe1 Ra3 Na7 Nc6 Qa5 Kd6 Rb2 Nb4 Qh6+ Be6 f8N Qb7 Qf4+ Re5 Qe4 Rg8 h8N Rg6 Qaa4 Bd5 Nf7+ Kc7 Qd2 Rf6 Nd1 c3 Nh6 Nd6 Ng8 Ne8 Qg4 Kd6 Qb3 Qh2 Qa2 g1R+ Bg2 Qg3 Be4 Bc6 Bf5 Bh1 Be4 Rg5 Qc1 Rg7 Re5 Rgf1 Qd2 R1f5 Rc5 Re5 Nf4 Nd5 Kd3 e2+ Qe3 Nb4+ Kc4 Rff5 Neg2 e1Q Nd3 Qd2 Nge1 Rf6 Nb5+
1b1Q3B/B2pQQ1B/KB2b1B1/3b4/bN2q2B/1n2rPqp/2n2N2/Rn5k b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 Qb6 Bh6 Qc7 Bc1 Qd8 b4 g5 f3 f5 exf5 g4 Ra3 g3 Rb3 Nc6 Rd3 Nb8 h4 a5 h5 Na6 Rd2 Bh6 Rf2 Bf8 Kd2 gxf2 g4 Nb8 g5 Ra6 Bd3 Kf7 Bf1 Rg6 hxg6+ Ke8 Kd3 e5 Kc4 Ke7 g7 Kd6 b6 h5 Kb5 d3 c4 h4 b7 e4 g6 Ke5 f6 a4 c5 a3 f7 e3 c6 Kf4 c7 Kg3 Nh3 a2 Na3 a1N Qe2 d2 Bb2 d1B Nc2 Na6 b8B Bb7 c8Q+ Bd6 f8B Bd5 Bc7 Qe8 Qd8 Nc5 Be7 Nf6 g8Q Nfe4 g7 Nd2 Qf7 Rg8 Rg1+ Kh2 Bg5 Rh8 g8B Rh5 Bgf6 Re5 Bh7 Qe6 Qe1 e2 Ka5 Qg4 b5 Qg3 Nb4 Ba4 b6 Nc2 b7 Ncb3+ Ka6 Re8 Bb6 Bb8 Bg5 Re4 Bh8 Re5 Bg2 f1B Nf2 Re6 Bh3 Re8 B3f5 Bh3 Qb1 e1Q Bfg6 Bf5 Qc1 h3 Bh4 Re2 Qa1 Bg4 Qaf6 Bge6 Q6e7 Re5 B4f6 Qe3 Ra1 Nb1 Bg5 Qd4 Bh4 Re3 Ba5 Qe4 Bb6 Be5 b8B Bc7 Nd1 Kh1 B8a7 Bb8 Nf2+
1K3n1Q/1RNk4/1bBB4/r1Rbbq2/Rpp1pP1n/3B2Qr/B3Bq2/4B3 b - - 0 1 illegal: No possible last move, all moves rejected
1n2r1Q1/6Bn/r2Np2P/b2RQ3/q1p2QBq/1nN1K3/2bQQp2/N5Qk b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 f4 e5 e4 exf4 e5 Bf5 Na3 Bh3 Nb1 Bc8 b4 Bd6 e6 Bf8 e7 Kd7 Ra6 Nf6 Rb6 Ng8 Re6 fxe6 Ke2 Kd6 e8N+ Ke5 d4+ Ke4 h4 g5 h6 c5 h7 a5 b6 g4 d6 g3 b5 g2 b7 a4 d5 a3 h5 c4 b6 a2 h6 a1Q d7 Qdf6 d8Q Qfe5 d6 Ra3 d7 Rb3 Nf3 Ra3 Rh5 Na6 b8Q Bb4 b7 Nf6 Nd4 Qg5 Nc2 Ba5 Bb2 Qh4 Rd5 Rf8 h8Q Nh7 Qd6 Nb8 Bg7 Rg8 Qf6 Rf8 d8Q Bd7 Qb4 Ba4 Qbd2 Qa2 Na1 Bc2 Q1e1 Ra4 Qg3 g1N+ Kf2 f3 Qg8 Qa3 Bh3 Ne2 Bg4 Nc1 Qd6 Nb3 Qb2 Bc3 Qc7 Ra6 Qc5 Ba5 Qd6 Nd7 b8Q Qa4 Qbc7 Bd3 Qbc2 Nb8 Qcd1 Bc2 Qcf7 Qg5 Q1e2+ Qe3+ Ke1 Qb5 Qg1 f2+ Kf1 Qc6 Kg2 Qa4 Qh5 Rf5 Qdf8 Rf6 Nd6+ Kf4 Nc3 Rf7 Bf5 Re7 Qff7 Re8 Qhh2+ Kg5 Qe5 Kh4 Bg4 Qg5 Kf3 Qd8 Ke3 Qf6 Bf3 Kh3 Qgg5 Qd8 Qff4 Qe7 Bh5 Qf6 Qgh4+ Kg2 Qhg3+ Kh1 Bg4 Qh4 Qg1+
1rb1B3/1p2kbn1/3r2R1/q4R2/1Q1b1qB1/3p1p1B/3QPBRB/nBN1K3 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 a5 Nc3 h5 gxh5 g5 Nd5 c5 bxc5 g4 d3 g3 Nb4 g2 Nf3 g1Q d4 Qg7 Ng1 Qe5 dxe5 axb4 a4 d5 c4 f5 h4 d4 e6 f3 a5 b3 c6 b2 h6 b1B h5 f4 e7 Bg4 c7 Nf6 c8B Bgf5 a6 Bh7 c5 Qc7 a7 Qd7 c6 Qc7 Ra6 Qe5 c7 Bhe4 h7 Nd5 h6 Qg5 Bg4 Qg8 c8B Ba2 Nh3 Ne3 Qd2 Bf5 Rg6 Nd7 Rh2 Bg7 Rg2 Qd5 Nf2 Nf6 Nd3 Rb8 a8Q Nh5 Qa3 Qa5 Qab4 Bf7 Bb2 Bf6 Nc1 Ng7 Bc3 Rf8 h8R d3 h7 Rg8 Be6 Bd4 Ba2 Bc8 Bb1 Rf8 Re6 Kd7 e8B+ Kd8 Rg6 Nc2+ Kd1 Na1 Ke1 Bg1 Be5 Bd4 Rh2 Rg8 Bfh3 Rf8 Rg2 f2+ Kd1 f3 Bh2 f1Q+ Qe1 Qf2 Qed2 Qe3 Ke1 Qf4 Rg8 Ba2 h8B Rf6 Rf8 Rd6 Rff6 Bf7 Rf5 Ne6 Be5 Ke7 Bg3 Ng7 Bf2 Qe4 Beg3 Qf4 Bh2
Q4k2/pBB1q1r1/P2R1p2/bR2n2q/5r1p/RR4NR/b4qR1/K3QB1n b - - 0 1 legal: proof: f4 c5 g4 h5 b4 e5 bxc5 exf4 c4 d5 cxd5 Qd6 Qc2 Qe7 Qd1 Qd8 gxh5 g5 h4 Qf6 h6 Qe7 h5 Qd8 Na3 Qf6 Nc2 Qd4 Ne3 Qf6 Ng2 Qd8 Nh4 gxh4 e4 b5 d4 f3 Kd2 f2 Kc3 b4+ Kb2 b3 a4 f6 c6 Kf7 e5 Be7 d6 Ke8 h7 Na6 e6 Qb6 d5 Kf8 d7 Qc5 d8R+ Kg7 d6 Qf5 d7 Qh3 h6+ Kg6 a5 Rb8 c7 Bb4 e7 Kf7 e8R Qf3 Re2 Ne7 Qe1 Nf5 Rh3 Nc5 a6 Qh5 Bf4 Rg8 h8R Ba5 h7 Rb4 Ra3 Rg7 Ka1 Ng3 Rb2 Rd4 Ne2 Nd3 Rhg8 Ne5 h8R Nh1 Ng3 Bb7 c8B Bd5 Bb7 Ra4 Be3 Rf4 Bb6 Be6 Bc7 Bc4 Bd3 f1Q Rb1 Qff3 Bf1 Qf2 Rb8 Bd5 d8Q Be6 Qd5 Ke7 Rgd8 Bf7 Rd6 Bg8 Bc8 Kf8 Rh6 Bf7 Rg6 Be6 Rb5 b2+ Ka2 Bf7 Bb7 Bg8 Nf5 Be6 Rg2 Bf7 Ng3 Bg8 Ra1 Bf7 Rab3 b1Q+ Ka3 Qe4 Qc6 Qg1 Ka2 Qee2+ Kb1 Qgf2 Raa3 Bd5 Ka1 Bc4 Rbd3 Ba2 Rdb3 Qee3 Bd8 Qc5 Qc8 Qc7 Qa8 Qe7 Bc7+
2qQ4/ppn2k2/1p2N1r1/P2Q2Rq/2K1bb1r/5nRQ/1Q3RB1/Qr1BQ3 b - - 0 1 legal: proof: f4 g5 fxg5 e5 g4 h6 d4 Be7 dxe5 Kf8 g6 Nf6 g7+ Ke8 g5 Bf8 g6 Ng8 b4 Na6 c4 Rb8 c5 Nf6 Bg5 hxg5 Na3 Qe7 Nc4 Ng8 Nb6 cxb6 c6 Qc5 bxc5 Ra8 Rb1 Nb8 Rc1 Kd8 Ra1 Ke8 Kd2 d5 Kd3 f5 h4 g4 e4 f4 a4 d4 a5 g3 c7 f3 c6 f2 h5 g2 e6 Rh7 h6 Be7 e5 Bb4 e7 Bg4 c8B Be6 c7 Nc6 Ra3 Bh3 Nf3 g1Q Kc4 d3 Nd4 d2 Rg3 Bd6 Rh2 Nf6 Bg4 Rd8 c8Q Ba3 Bg2 f1R Qa1 d1Q Ne6 Rh8 h7 Bc1 Bh5 Qd7 Bd1 Bf4 Rg5 Rg8 h8Q Bf5 Qh3 Qf2 Qb3 Re1 Qbb2 Qh4 Rg3 Be4 Rg5 Rf8 g8R Qh5 g7 Qc7 Qd7+ Kf7 Qd3 Rde8 Qh3 Qc8 Nd4 Bc2 Rg3 Rh1 Be2 Nd5 e6+ Kf6 Bg4 Rf1 Rh1 Rb1 Rf1 Nc7 Rf2 Qh8 Bd1 Rd8 e8Q Rd6 e7 Ne5+ Kc3 Qh7 Qd8 Nf3 Kc4 Qh4 Qc1 Qhg4 Qcb2 Rf7 e8Q+ Kg6 Qea4 Be4 Qab4 Rf8 Q4c3 Kf7 Qe1 Rf6 Ne6 Qg5 Rh8 Rg6 Rh5 Qg4 Rg5 Rh8 Qdd4 Rh4 g8Q+ Ke7 Qd3 Qh5 Qgd8+ Kf7 Q3d5
N1Qn2B1/N1N3RN/1N1n2nQ/pp2P3/2npr1N1/4k1r1/5R1Q/1Kb2nq1 b - - 0 1 illegal: No possible last move
R2B1nr1/7R/nQ1k2p1/1pRP1R2/r4Nnq/RN3pR1/K1Qn2Qb/4n3 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 c4 f5 b4 axb4 Bh3 d5 cxd5 f4 Kf1 Qe7 Ke1 Bf5 gxf5 Qd8 Bg4 hxg4 d4 Ke7 Kd2 c5 Kc2 b5 Kb2 g3 e4 b3 a4 f3 h4 g6 a5 g2 a6 c4 f6+ Kd7 h5 Bb4 a7 Rh7 d6 Nc6 e6+ Kc8 d5 Qe8 d7+ Kc7 d8Q+ Kb7 f7 Rh6 f8R Nd4 e7 Nc2 e5 Rh8 e6 Ne1 h6 Bd6 h7 Bh2 Bg5 Nh6 Nh3 g1N Nf4 Ng4 Rf5 Rg8 h8R Ne2 Nd2 Nd4 Rg1 c3+ Kb1 b2 Ra3 c2+ Ka2 b1N Nb3 Qc6 e8Q Nd2 e7 Ne6 Rh7 Qc4 Rg3 Nf8 Qe2 Qd4 Qg2 Qf6 Qc8+ Kb6 Qa6+ Kc7 Qac8+ Kd6 Qed8+ Nd7 Qa5 Nf8 e8R Qd4 Bh4 Qb4 Bd8 c1N+ Ka1 Qe4 Qc2 Ncd3 Ka2 Nc5 Ree7 Qd4 Rc7 Na6 Rc5 Qf6 Qb4 Qh4 Qd4 Rc8 a8R Rc7 Rc3 Rc4 Qa7 Re4 Rc5 Ra4 Qb6#
N3R2Q/3rB3/R1BBpr2/pr1qn3/1rp1P3/1B1kB1b1/5q1Q/bKQB4 b - - 0 1 legal: proof: c4 d5 a4 dxc4 f4 b5 axb5 e6 f5 Nc6 f6 Nce7 fxe7 g5 g4 Bg7 Nc3 Bd4 Nd5 Kd7 Nf4 gxf4 Ra4 Bb7 Ra1 Bg7 g5 Bf3 h3 Bg4 hxg4 Bf8 e8B+ Kd6 d4 Kd5 Kd2 Ke4 Kc2 h5 b4 f5 g6 c5 g7 c3 b6 a6 b5 c4 b7 h4 b8B h3 g5 h2 b6 f3 b7 f2 g6 f4 d5 f3 d6 Qd7 Be3 Nh6 g8Q Qh7 d7 Bg7 d8B Nf7 Bd6 Ne5 b8Q Bf6 g7 Qh5 Qc1 Ra7 B8e7 Rd7 Nh3 Bh4 Bg2 f1R Kb1 Bg3 Nf4 Rh7 Rg1 h1R Qh8 Qg5 g8B R1h5 Bh3 f2 Bg4 Rf7 Qb2 Rf6 Nd5 Rd1 Ra4 f1Q Nb6 Qf2 Na8 Qgf5 Bh7 c2+ Ka2 Rb7 Bc6+ Rd5 Ra5 Rb4 Bg6 Rh7 Bge8 Qh5 Ba4 Rdb5 Bb3 Qh1 Rg2 Qd1 Bc6+ Qd5 Rh2 Rg7 Rh6 Rh7 Rg6 Rhf7 Rg8 Rh7 Re8 Rg7 Qf1 c1B Kb1 Rh7 Qd2 Bb2 Qdc1 Rhf7 Qfh3 Ba1 Qh2 Rg7 Bf4 Kd4 e4 Kd3 Bd1 Rgf7 Be3 Rg7 Bd8 Rd7 B8e7 Rb8 Rb5 a5 Rb6 Rbb7 Ra6 R7b6 Qf8 R6b5 Qfh8
3R2nb/1Qn1N3/3B2Qp/bk1pN2r/rp4BB/1K4B1/3qprQP/6BB b - - 0 1 legal: proof: d4 b5 b4 c5 e4 e5 dxe5 f5 e6 Be7 e5 Bf8 a4 cxb4 axb5 Qe7 Nf3 Qg5 Ng1 Qd8 f4 Qc7 g4 Qb6 e7 Qd4 Ra3 Bb7 Re3 Qa1 Re4 fxe4 f5 Qa5 Nf3 Kf7 Ng1 Bd5 f6 Be6 Bf4 Qc7 Bc1 Bf5 gxf5 Qd8 Kd2 Ke8 c4 a5 Kc2 g5 c5 e3 b6 a4 b7 d6 c6 g4 c7 Kd7 c8B+ Kc6 e8Q+ Kb6 f7 h6 e6 g3 e7 g2 f6 a3 Qd5 e2 Qd7 a2 e8Q a1R Nf3 g1B Be3+ Ka6 Kb3 Bf2 Ne5 Ra2 Qg2 Bg1 Nc3 Bf2 Nd5 Ka5 Ne7 Bg3 Bg1 Bg7 f8B Rc2 f7 Na6 b8B Rc5 Qdb7 Nc7 Bg4 Rh7 Qec6 Bh8 Qce4 Rd5 Qg6 Bf2 Bg7 Bb6 f8B Kb5 Bf6 Rf7 Bh4 Rc5 Qh3 Rf5 Bg2 Ra4 Bd5 Rh5 Qg2 Rc6 Be3 Rc4 Rd1 Rf4 Bg1 Rf7 Qg3 Rf2 Bh1 Qd7 Qgg2 Qd8 Rc1 d5 Rc6 Qe8 Rd6 Qf7 Rd8 Qf4 Bg7 Qc1 Bgf6 Qd2 Bg3 Rf4 Bfh4 Rf2 Qa8 Ba5 Qa7 Na8 Bd6 Nc7 Qb7+
1K2Rkb1/R1R1rp1b/P2Qp3/1R2pq2/1R4nB/1r3p2/1nR2Nn1/2B2BQ1 b - - 0 1 illegal: No possible last move, all moves rejected
1QB3Rn/p2Kpp2/B4k1n/p2Nb3/1N2P1B1/Bbr1rq2/1Q6/1B1Q1Bn1 b - - 0 1 legal: proof: d4 g5 b4 c5 dxc5 b6 a4 g4 a5 bxa5 b5 g3 b6 Qc7 b7 Na6 fxg3 Nb8 g4 Qb6 g5 Qd8 g4 h5 g6 d6 g5 Kd7 Qd5 Na6 Ra4 Qb6 Rg4 hxg4 b8Q Qc7 Qbb7 Rb8 Qa8 Rb6 Qd1 Rc6 Qb8 Kd8 Qb7 Be6 Qa8+ Qb8 Qb7 Qa8 Qxa8+ Kd7 Kd2 d5 Kc3 g3 Kd4 g2 c4 Nb4 h4 Rb6 g7 Ra6 g6 Rh6 h5 Bh3 c6+ Ke6 Kc5 d4 c7 d3 c8B+ Ke5 Na3 d2 Qb8+ Rd6 Nc2 Rh8 h6 Na2 h7 Bf5 Nb4 Kf6 Nh3 g1N Ba6 Ke6 Nf4+ Ke5 Nfd5 Bd3 Ba3 Nh3 Rg1 Nh6 e3 Rg8 h8Q Nf4 Kb5 Bc2 c5 Nc1 c6 Nce2 c7 Rd8 Kc6 Rc8 Kd7 Bb3 Rg4 Ng1 Rg5+ Nf5 Qh2 Rh8 g8B Rh3 Bh7 Bg7 Qg2 Bh8 g7 Ng6 g8B Rf3 Rg4 Nh6 Qge2 Bg7 Rg2 Nh8 Bf5 Rg3 Bgh7 Rf3 Bb1 Rh3 e4 Re3 Bf5 Bf6 Qc2 d1Q Rg8 Bg7 Qed3 Qf3 Qdd1 Bf6 Bg4 Bg7 Nc3 Kf6 Qb2 Kg5 Re8 Be5 Rd8 Kf6 Rg8 Rf8 c8B Rd8+ Kc6 Rd6+ Kc7 Rc6+ Kd7 Rc4 Na4 Rc5 Nb6 Rcc3 N6d5+
6R1/BqN2RP1/Q2r4/2K2QbR/2R2r2/Qb1pppb1/1pnk4/RR1r3N b - - 0 1 legal: proof: d4 a5 g4 d5 f4 h5 b4 axb4 e4 c5 dxc5 d4 g5 Nd7 Be2 g6 f5 Ndf6 fxg6 Nd5 Bg4 hxg4 exd5 Rh3 Qd2 Rh7 Qd1 Rh8 Ke2 Kd7 Kd3 e5 Kc4 f5 h4 g3 a4 b3 a5 b2 a6 d3 c6+ Kd6 h5 e4 c7 Ke5 d6 b5+ Kc5 f4 c4 b4 g7 f3 a7 g2 h6 b3 h7 Bf5 c8Q Ne7 g8R Bg6 d7 Bh6 Na3 b1R Be3 b2 Nh3 g1B Qa4 Be8 g6 Nd5 g7 Ne7 Nf2 Bg5 Qaa6 Nc6 Nb5 Rd1 Nc7 Nb4 Qa3 Rb8 a8Q Bf7 Qa8a6 Nc2 Rh5 Rb3 Nh1 Bf2 Rb1 Qe8 d8R Qd7 Rdf8 Bg3 Ra1 Bd5 Rf7 Rb6 Bf2 Rd6 Rb1 Qf5 Qd7 Kf4 Ra8 Rf8 h8R Be7 Rg8 Bg5 Kb5 Rb8+ Qb6 Bh2 c5 Be7 c6 Bd8 Qa5 Be7 Ne8 Bg5 c7 Bg3 c8R Bb3+ Rc5 Rb7 Nc7 Ra7 Qb4 Ra4 Q4a5 Rc4 Qb4 Rcd4 Raa1 Rc4 Qa3 Rcd4 Be1 Ke3 Bf2+ Kd2 Qba6 Qd5 Qf5 Rc4 Bg1 Qa8 Bd4 e3 Rc6 Ra4 Ba7 Rf4 Rc4 Qb7+ Kc5
2qQ2b1/N2q1br1/r1R4Q/1KR2N2/1n2p1N1/k3pp2/N3pPb1/B1N3NQ b - - 0 1 illegal: Other
3R2nQ/qRR3rb/1Bq2p1B/RN1kr1b1/2Rp4/3p1RP1/B3pK2/Q5r1 b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 cxd4 e4 f5 exf5 e6 f6 Bd6 f7+ Ke7 f8B+ Ke8 f4 Kf7 g4 Ba3 f5 Nc6 f6 Nce7 Nc3 Nf5 Nd5 Ng3 hxg3 Kg6 f7 Bd6 Nf6 gxf6 b4 h5 c4 a5 g5 Kf5 g6 Ke5 b6 d3 b5 h4 c5 h3 c6 a4 b7 h2 b8Q a3 g7 a2 c7 Ra6 b6 Ba3 b7 d5 Bh6 Bc1 Kf2 Qe8 Nf3+ Ke4 Bc5 e5 f8R Bd2 Nd4 Re6 Nb5 Qc6 Rf7 Rh7 Bb6 Bg5 Be2 Bd7 Rf1 h1R c8R Rg1 Qa8 Be8 Rfc7 Bg6 b8R d4 Rbb7 Bf5 Bh5 Kd5 Bf7 e4 Qb1 Ne7 g8R Rg7 Rge8 Ng8 Qb2 Bh7 Red8+ Qd6 Rc4 Qd7 R8c7 e3+ Kf3 e2 Kf2 Ke4 Qba3 Qc6 Qf8 Re5 Qa6 Ne7 Qh8 Ng8 Ke1 Rg2 Rf3 Rg1+ Kf2 Bh4 Rac1 a1Q Rd1 Qa2 Ra1 Bg5 Qa8 Qa7 Ra5 Bd2 Rc3 Bg5 Ba2 Qd7 R3c4 Kd5 Qc8 Qd6 Qh3 Qd7 Qf1 Qd6 Qa1 Qd7 Rdc8 Qc6 Rd8+
3rr3/1N2R3/1K1n1pBB/2pNrp2/3qnBQ1/2B1BP2/pkBbQQ2/3q4 b - - 0 1 legal: proof: c4 d5 cxd5 a5 h4 b5 a4 g5 Ra3 gxh4 Rf3 e6 Rf5 exf5 axb5 a4 b3 a3 b6 Bd7 Rh3 Qc8 Rh1 Ba4 bxa4 Qd8 d4 Kd7 Kd2 Kd6 Ke3 h5 g4 f6 f3 a2 a5 h3 b7 h4 g5 c6 a6 h2 g6 h3 a7 Qc7 g7 Na6 b8B Ne7 g8Q Rh4 Nd2 Rf4 Ne4+ Kd7 d6 Qa5 d5 Qd8 Kd4 Nb4 Kc5 Bh6 Qg4 Qe8 Kb6 Ng6 Nc5+ Kd8 e4 Bg7 d7 Ke7 d8B+ Kf7 e5 Bh6 d6 Nh8 d7 Re4 Ne2 Bd2 Nf4 Na6 Nb7 Nc5 Nd5 Ke6 Bd3 Nf7 Qe2 Nd6 Re1 h1Q Bc2 h2 Bdc7 Re3 d8B Nce4 Bb2 Qf7 Bc3 Qd7 Be7 Qf1 Bf8 h1R Bh6 c5 Qf2 Qd3 Re2 Rd1 Re1 Qd4 Re2 Kf7 e6+ Ke8 e7 Kf7 e8B+ Ke6 Bg6 Ke5 Ka6 Re1 B7a5 Rd3 Kb6 Re3 Bc7 Rd8 a8Q Qa4 Bb1 Qd1 Bc2 Rh1 Qa6 Rh2 Bg5 Rhh8 Bh6 Rhe8 Re1 Ng3 Qae2 Ne4 Ba1 Qc3 Bb2 Kd4 Bc1 Qd3 Bc3+ Kc4 Bb1 Kb3 Bb8 Ng5 Bc7 R3e5 Bb8 Nge4 Bc7 Bg5 Be3 Ka3 Bc2 Bf4 Bed4 Bd2 Bde3 Qd4 Nb4 R5e7 Beg5 Nf7 Qc4 Ng3 Nd5 Re4 Qd3 R4e7 Re6 Ne4 Be5 Nfd6 Qde2 Nf7 Be3 Nfd6 Bb4+ Kb2 B5f4 Rc7 Re7 Rcd7 Rf7 Rde7 Ba5 Re6 Re7 Re5 Bc3+
2b2Q1B/1RNr2B1/q1BQPp2/5B1k/1bpB4/pqB2pnK/2qr3R/3Q4 b - - 0 1 legal: proof: h4 e5 g4 d5 f4 exf4 c4 b5 cxd5 g5 a4 Nd7 axb5 Ne5 h5 Ng6 Nc3 Bb4 hxg6 Bf8 Ne4 Qd6 Nf2 Qd8 Nfh3 f3 Nf4 gxf4 g5 Qf6 Qc2 Qe7 Qd1 Qd8 Kf2 h5 d4 a5 e4 c5 b4 c4 d6 a4 d7+ Ke7 b6 h4 g7 h3 b5 h2 g6 Kf6 e5+ Kg5 e6 a3 b7 Ra6 b8Q Qe7 d8B Rh6 b6 Ra5 d5 Kh4 b7 Rh8 d6 Nh6 g8Q Qf6 d7 Nf5 g7 Kg5 Be3 Nh4 Rb1 Bd6 Bg2 Nf5 Ne2 Rh7 Nd4 Bf8 Nb5 Bb4 Qf8 Ra8 g8B Qe7 Nc7 Kh4 Bd4 Kh5 Kf1 Qe8 B8f6 Ng3+ Kf2 Ra5 d8B Qa4 Bh8 Qb3 Bd8f6 Rd5 Bfg7 f6 Rb2 Rd7 Qd6 Rh6 Bh7 Rg6 Bc3 Rg5 Be4 Rd5 Bf5 Rd3 Qa8 Rd4 b8B Rd2+ Qe2 Qc2 Ba7 Qb3 Rhb1 h1Q Bad4 Qhd1 Bh1 Qdc2 Kg1 Qa4 Kh2 Qa6 Kh3 Qb3 Qf1 f2 Bc6 f3 Qe2 Qc2 Rh1 Qb3 Qd1 Qc2 Rh2 f1Q+ Rg2 Qfd3 Rh2 Ba5 Rb7 Bb4 Qa7 Qb3 Qac5 Qdb1 Qf8 Q1c2 Qcd6
5Q2/PRkB1nb1/2qbK1b1/p2Qp1N1/1pRp4/2N4p/1N1R1R2/2n2rRR b - - 0 1 illegal: No proof kernel
1K1b1nb1/2R4r/b2npk2/2Nqq2Q/1Q1B2qQ/1NNrP3/1R2rn2/2Q1Q2Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 f5 h4 Kf7 d4 a5 b4 c5 h5 g3+ Kf3 e6 b6 a4 e3 c4 g6+ Ke7 h6 a3 h7 c3 b7 g2 d6+ Kf6 d5 c2 d7 a2 b5 Bh6 b6 Qe7 d8Q Ra3 d6 Bg5 d7 Ra7 g7 Nh6 g8Q Nf7 Ne2 g1Q Qe1 Ra3 Nd4 Nd6 Qc7 Rd3 d8Q Nd7 b8Q Nf8 Bb2 c1N Rh2 Ba6 b7 Bh4 Qe8 Qd8 Nc3 Qd7 Rb1 a1Q Nb3 Bg5 Rc2 Qg4+ Kf2 f3 Qh5 f4 Qg7+ Kf5 Qe7 Qc6 Qa8 Qd5 b8N Qaa5 Qc4 Qac5 Qc7 Kf6 Qb4 Qe5 Ba1 Qcd5 Rbb2 Bh4+ Kf1 f2 Nd7+ Kg7 Qac6 Bd8 Ndc5+ Kf6 Q6b7 Rg8 h8Q+ Rg7 Q8h7 Rf7 Qhe4 Rh7 Qcc8 Qd1 Kg2 f1R Kh3 f3 Kg4 Rf2 Qbc6 Re2 Q6a8 Qed4 Kf4 f2 Qcc6 f1B Qac8 Q4c4 Qca4 Qb5 Qeh1 Bh3 Qc7 Bf5 Qc6 Bg6 Qc8 Bf7 Qc7 Qdc6 Qc8 Kg7 Ke5 Bg8 Qbh4 Qf3 Qab4 Qg4 Na5 Nb3 Rc1 Nd2 Nb3 N2e4 Rcc2 Nf5 Qc6 Nf2 Qc8 Nd4 Kd6 Qa5 Rc1 Nf5+ Kc6 Nd6 Rcc2 Bf6 Rc1 Qb5+ Kc7 Qa5+ Kb8 Bd8 N5e4 Qd5 Nec5 Qe5 N3e4 Qgf4 Nb7 Qd4 Rbc2 Qfe5 Ra2 Qc4 Bd4 Red2 Rb2 Qd5 Qc2 Qf3 Qcd1 Re2 Rc7+ Bf7 Qc1 Qg4 Rc4 Bg8 Nc3 Qg5 Rc7+ Kf6 Q4g4 Qf4 N7c5 Qfe4 Qg3 Qg4 Qgh4+
2R2NR1/3NbR2/3b1n1n/2Qnq2q/k2QN2p/1bR1r1RP/3R3r/KB1rr3 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 Kb2 Kd7 d4 c5 e4 f5 g4 a5 g5 h5 h3 h4 g6 c4 d6 f3 b6 Kc6 d5+ Kb5 g7 f4 d7 a4 b7 Ra6 e5 Rah6 e6 Ka5 b4+ Kb5 d6 Be7 Bd3 f1R Ne2 f2 Qc1 f3 Ra3 Qa5 d8R Rf6 d7 Nh6 g8R Re1 Nf4 f1N Nd2 f2 Rc3 a3+ Ka1 a2 Ne4 Ne3 Ng6 f1R Bb1 R6f2 Nf8 Ka4 b5 Nd5 b6 Rh2 Rgg3 Rf3 Rhg1 Rfe3 Rf1 Bd6 e7 Rh7 Rd3 c3 e8R c2 Rc3 Rd1 Rf6 Re7 Rf7 Ree1 Qg5 c1B Qe3 Bca3 Qc5 Nc6 b8R Ne5 b7 Neg4 Ra8 Ngf6 b8N Ba6 Rc8 Bc4 d8Q Bb3 Nbd7 Re6 Ra6 Be7 Rd6 Re5 Nf2 R5e3 Ne4 Bb4 Nh7 Qb5 Reg8 Qe2 Nhf8 Qh5 Re6 Ba3 Re5 Bd6 Rf5 Be7 Rf2 Bd6 Rd2 Be7 Qcc7 Bad6 Qc5 Rf3 Nb8 Be5 Kb2 Nc7 Qd3 Rfe3 Nbd7 B5d6 Rcc2 Ncd5 Rc3 Bc4 Rb3 a1Q+ Kc2 Qd4 Rc3 Qde5 Kb2 Ba2 Ka1 Bb3 Qdd4+
R2nRqk1/4n3/Br2rNp1/2q2BQ1/3BbBr1/Q5P1/B4q2/Qb1KbB1r b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 Nd2 h5 Ne4 h4 Ng3 Rh6 Nh5 Rh8 g3 h3 Nf4 Bb7 Ng2 hxg2 Kf2 Ba6 Ke1 Bc8 b4 d5 e4 a5 h4 f5 c4 Kf7 e6+ Ke7 c5 g6 b6 d3 e5 d4 c6 f4 h5 a4 c7 a3 h6 f3 b5 a2 b7 Ra4 h7 Ra6 b6 Bh6 Bf4 Kf8 Nh3 g1Q Nf2 Nc6 b8Q Bb7 c8B Nge7 Ne4 f2+ Kd2 Qc7 Qa8 Nd8 Nf6 Be4 b7 Qc5 b8Q Rb6 Qa3 Kg7 Rh4 Re8 h8B+ Kf8 Ba6 Qg2 Rb1 a1R Qda4 Bg5 Kd1 d2 Rh2 Ra2 Ra1 Rab2 Qb5 Rb4 Qa7 Bb1 Bc4 f1B Ba2 Bfd3 Qba5 Qf3+ Re2 Qf2 Qa8 Ra4 Qh1 Bh6 Qh5 Be4 Qg5 Nd5 e7+ Kf7 Ng4 Kg8 e6 Bg7 Q5c3 Bf6 Bc7 Qb5 Bc4 Bf5 Qab3 Qd7 Bc8 Rab4 Ra8 Qf4 Qa3 R4b5 Ba2 Qdd6 Ba6 Rb4 Qa1 Qc5 Re5 Ra4 Ke2 d1R Re3 Rh1 Bd6 d3+ Kd2 Re4 Bb8 Bb2 Bd4 Qf1 Re1 Bc3+ Kc1 Rf8 e8B Rf6 e7 d2+ Kd1 Qf4 Beb5 Qfd6 e8B Qf8 Bed7 Rfd6 Ne3 Rg4 Bf1 Ba5 Ke2 d1Q+ Kf2 Bfc2+ Bf5 Qd2+ Kf3 Rf6 Bd6 Qh2 Bf4 Qg1 Ke2 Bd3+ Kd1 Qf2 Re2 Be1 Nc4 Rfc6 Re8 Re6 Ne5 Ne7 Nd7 Be4 Nf6+
n2q1Qb1/bN3r2/B1Kn1b2/1nR1r1p1/1kN3PB/bB1b4/1BBQ4/N4bB1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 d4 cxd4 g4 h5 f4 h4 fxe5 Nf6 Ra3 Ng8 Rg3 hxg3 Kd2 Ke7 Kd3 a5 Ke4 f5+ Kd5 g5 h4 a4 e4 f4 c4 a3 e6 g2 e5 d3 c5 d6 b6 d2 b7 f3 b5 f2 c6 a2 h5 a1B c7 Ra5 h6 Ra8 h7 Na6 b8Q Qe8 b6 Qf7 b7 Nh6 Bc4 f1B Kc6 d5 Bb2 d4 Na3 d3 Bb3 Qf6 Nf3 g1B Nc4 Nf5 Nd4 Nd6 Nc2 Ba7 Rg1 Rg8 h8B Rg7 Qc1 d1B Qd2 Bde2 Rh1 Bh3 Rc1 Rf7 Bd4 Bc3 Na1 Bhf1 Bf2 Bb2 Bh4 Ba3 Rc3 Bg7 Bc2 Kf8 Bb3 Qd8 e7+ Ke8 Bc2 Be6 c8B Nc7 Bb3 Bf6 Rc2 Rh7 Rc3 Kf7 e8B+ Ke7 Bg6 Bg8 e6 Rf7 Bg7 Bb6 Bh7 Ra5 Qa8 Bbd4 b8B Re5 Ba7 Bg1 Qb8 Na8 Ba6 Be3 Qa2 d2 Bhc2 d1N Bc5 Bd2 Bg1 Bd3 Qb4 Be3 Qb2 Ke8 e7 Ba7 Qa2 Nb5 Qb2 Nf2 Qc1 Ne4 Qd2 Ned6 Bh8 Rh7 Qc5 Kf7 e8N Ke6 Qb4 Rf7 Qc5 Nf5 Ned6 Ke7 Nb7+ Nfd6 Bg7 Ke6 Qe2 Nc8 Nbd6 Re3 Qb4 Be5 Nb7 Bed4 Qf8 Ncd6 Qd2 Re1 Be5 Re4 Beg3 Bf6 B3f2 Re2 Ne3+ Ke5 Rc5+ Kd4 Nc4+ Re3 Qd1 Kc3 Bfg3 Re8 Be5+ Kb4 Bb2 Re5 Qd2+
n1b2KQ1/1QR3N1/6Rn/3rb1B1/Q3p1Qn/n3PQrN/1nqN4/k1Q1n2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Kd7 d4 Kd6 h4 a5 b4 f5 h5 c5 h6 e5 e3 f3 Kg3 c4 Kh4 a4 Kh5 a3 Kg6 e4 Kf7 f2 g6 f1B b6 f4 h7 a2 b7 f3 b5 g3 g7 f2 b6 g2 Nd2 c3 Rh3 c2 Bb2 c1N Rg3 Nd7 b8Q+ Qc7 b7 Nd3 Nb1 Ne1 Qg4 Ra5 Nh3 g1N Qa8 Bg2 b8Q f1N Qbb7 Nh6+ Ke8 Qc2 g8Q Rb5 Qa4 Bh1 Qf3 Be7 Rg6+ Bf6 Bc3 Nb6 Kf8 Rc5 Ba5 Na8 Bd8 Nd2 Qg4 Be6 Qf3 Be5 Bg5 Nc4 Qg4 Nb2 Qf3 Rb5 Qg4 Qc7 Qf3 Kd7 d6 Bf5 Qg4 Ngf3 d5 Be6 Na3 Nh4 Rc1 a1N Nb1 Nac2 Qf3 Na3 Rc6 Bf6 Rc4 Kd8 d7 Qh2 Rc7 Qc2 Qc6 Qb3 Qc1 Qc2 Rc4 Rc5 Rc3 Kc7 d8N Kb6 d6 Rd5 d7 Bg4 Ne6 Be5 Rc7 Bf5 d8Q Bg4 Qc6+ Ka5 Qc8 Kb4 Ng7 Kb3 Q8b7+ Ka2 Qa4 Ka1 Ke7 Qd2 Qgc8 Rg8 h8Q Qc2 Qh7 Rgd8 Qg8 R8d6 Kf8 Ra6 Qce8 Bc8 Qef7 Rf6 Qg4 Rf3 Qff5 Rg3 Qf1 Rd6 Qff3 Rd5 Nd2+
2nQq1Q1/2k1N3/Qb1bQR2/r1p1B2q/RQ2q3/N4b1R/1nPK1Qb1/2r2q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 e4 dxe4 Be2 Qd7 fxg5 Bb7 g6 Bc8 g5 Qd8 Bg4 hxg4 d4 Kd7 b4 a5 h4 f5 h5 e5 h6 e3 b6 e4 h7 f4 b7 f3 d5 g3 d6 g2 b5 a4 b6 e2 g7 f2+ Kd2 f1B g6 a3 Bb2 e1Q+ Kc1 e3 Be5 a2 Ne2 g1B Rh3 Qeh4 Rf3 Qh5 Rf6 Ra5 Nf4 e2 Qd2 Qe8 Nd5 Nc6 b8Q Bg2 b7 Bb6 Qa7 Nb4 b8Q Bb7 Na3 c5 Qa6 Ne7 g8Q Nc8 Ne7 Bbf3 g7 Kd8 Qd4 Nd3+ Kd2 Nb2 Qe6 Rg8 d7 Rh8 Nf5 Bd6 Qf2 Rf8 h8R Rg8 Qba8 Kc7 Ne7 Rf8 g8Q Rf7 Rg1 a1Q Qe4 Qf1 Qb4 Rg7 Rh1 Rg4 Rh4 Rd4+ Kc3 Rd1 Rc4 Rc1 Kd2 Qg4 Rh1 Qgh5 Rh3 Qg1 Qb3 Qf1 Ra4 Ba8 Qb4 Baf3 Ke3 e1Q+ Qfe2 Qeh4 Kd2 Q4g4 Qf2 Qe4 d8Q+
1q1bb2N/1BQn2q1/B4RnB/1Qp2pb1/5nkr/1B5N/2P1B1r1/3Qr1BK b - - 0 1 illegal: No possible last move, all moves rejected
r3BB1B/1Q3B2/Qp3bK1/1bq1N3/1Bb3n1/1P1r1BR1/qk4p1/Q1n2nNq b - - 0 1 illegal: No possible last move
2NNq1b1/4Np2/6QK/b1nnb1R1/1p1N1P1Q/n4b2/b3rNNQ/R3Brk1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 b4 c6 e3 Bg7 b6 Ne7 b5 Ng8 b7 Bh6 b6 Bf8 Bb5 cxb5 Kd2 Ke7 g4 Ke6 c4 h5 e4 d5 Ke3 a5 Kf4 h3 g5 h4 c5 a4 g6 h2 c6 d4 c7 a3 g7 d3 Qa4 h3 Nd2 a2 Nc4 d2 Nf3 d1N Rg1 h1B Ne3 h2 Bd2 Qe8 Kg5 Bb4 Ng2 Nd7 b8N Ba5 b7 Nb2 Be1 Nc5 Nc6 Nc4 b8Q Ne7 g8N Nd5 Nge7 Na3 Qc4 Rf8 Kh6 b4 Qb6 Bb7 c8N Ba6 Qc2 Bd3 Qd2 Rg8 Qf4 Rg5 Qh4 Rf5 Nd8+ Kd7 Rb1 a1B Nd4 Bc4 f3 Ba2 Qg6 Ra6 Rd1 Re6 Rb1 Bc3 Ra1 Kc7 Ng8 Re7 e6 Rf4 e5 Rf6 Nd6 Kb6 Ne4 Rf4 Nf2 Rf5 Nb3 Kb5 Nd4+ Kc4 Nf4 Bb2 Rg3 Bg2 Rg5 h1B Qh2 Bf1 Ng2 Bd3 Qh4 Ra7 e7 Bdb1 Ne4 Kd3 e6 Re5 f4 Rd7 N4c6 Ke2 Nd4+ Kf1 Nf2 Re2 Qh2 Rc7 Qh4 Qb5 e8N Kg1 Nd6 Qe8 e7 Be4 N4f5 Be5 Nd4 Bd3 Nc8 Rc6 Qe6 Bh7 Qg6 Re6 Bc3+ Re1 Bd2 Rf1 Be1 Qd7 e8Q Qb5 Nge7 Bg8 Qf8 Qe8 Nb7 Bec7 Qg7 Re2 Nd8 Be5 Qh8 Nb6 Qhh5 Nbc4 Nh4+ Bg2 Qhh7 Bb8 Kg7 Nb6 Qg4 Nd5 Qhh5 Kh2 Kh6 Bf3 Ng2+ Kg1 Qhh3 Bd6 Qgh4 Be5 Qh2#
1kq2N1K/2NR2n1/2qN1b2/2QNQ1p1/2r1bb2/1pNQrNP1/7n/rB3Rb1 b - - 0 1 illegal: No extended proof kernel
NQbk1B2/b1q3B1/1p1QBR1Q/pr3nK1/1P2rB2/3Br2R/1q1n4/4qB1q b - - 0 1 illegal: No proof kernel
4QbQ1/1qbn4/2Qkr1p1/QpNN3R/b4RR1/qr3Q2/2nBQ1Pn/5nK1 b - - 0 1 illegal: No possible last move, all moves rejected
k4rnN/pQ1bp1QN/2QB4/3Q3B/3Rq2n/b1Qr1B2/3QP1q1/1rb1Kb2 b - - 0 1 illegal: No possible last move, all moves rejected
br1b1B2/3RRb2/1k1N2pR/p3Bbrb/KQ4P1/1Q2RRb1/2nnB3/3R2q1 b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 h5 d4 h4 Nc3 c6 f4 c5 fxe5 cxd4 Ne4 Ba3 Ng3 hxg3 Bf4 Bc5 Bc1 Bf8 Kd2 a5 h4 d5 e4 Kd7 c4 Kc7 Kc2 f5 Kb3 g2 b6+ Kc6 b7 d3 c5 d2 h5 f4 e6 f3 e7 f2 e8R d4 e5 d3 h6 Qc7 e6 Ne7 h7 Ng6 e7 Nh4 Ra3 Nf3 Ne2 g1B Nc3 Qb6+ Nb5 Na6 b8B Bh2 Ka4 Nb4 Qb3 d1B Be2 f1B Be5 d2 Nd6 Rg8 h8R Rb8 Rh6 Nc2 Qb4 Kc7 c6 Bf5 Re3 Qc5 Rd8 Bg3 e8R Bg2 b3 Be7 Ba3 Bg6 Re1 Bh5 Rf8 Nh2 Rff3 Nf1 Re8 Bd8 Ree6 Rb5 Re7+ Kb6 c7 g6 c8R Qd4 Rcc7 Qa1 Rf5 Ba8 Rff3 Qd4 Rcd7 Qc5 Re4 Qg1 Ree3 Re8 Qe4 Rd5 b4 Rc5 b5 Rg8 Bf4 Rg5 Be5 Rh8 Qb4 Re8 Bd3 Be2 Bc4 Bd3 Rd1 Bf5 Be2 Rf8 Bg7 Rg8 Bab2 Rh8 Bf8 Rg8 Be5 Rh8 Re1 d1B Qb3 Nd2 Ref1 Kc5 b6 Kc6 b7 Kc5 Bb5 Kb6 Qb4 Be2 Rd1 Bc4 Qb3 Bf7 b8Q+ Kc5 Qb7 Rg8 Qe4 Kb6 Qeb4 Bc7 Bfg7 Rb8 Bf8 Bd8 Be2+
2N1Q1r1/1nQ3b1/2N2p1k/qN2bBRp/RrN2P1n/6np/N2NR1r1/1b2K3 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Be3 Ba6 cxd5 Qd7 d6 Bc8 d5 Qd8 Bd4 exd4 g4 h5 b4 a5 e4 c5 f4 f6 g5 Kf7 d7 Kg7 g6 d3 b6 h3 b7 c4 d6 a4 e5 c3 e6 a3 e7 c2 e8Q c1B b5 a2 b6 Qe7+ Ne2 Qe3 d8N Bd7 Rh2 Ra5 Nd2 Re5 Qc2 Kh6 g7 Nc6 b8N Rg5 b7 Rg2 Ne6 Na5 Nc7 Qc5 Nc6 Bf5 b8R Ne7 d7 Nb7 d8N Ng6 Ne5 Qa5 Nc4 Bb2 Nc3 Rg8 N7b5 Nh4 Nc6 Bh7 Ra8 Bf5 Rd1 a1R Na2 Be5 Be2 Bh7 Bg4 Rb1 Bf5 Rb4 Qc1 Qb6 Ra4 Qa5 Nf3 Bg6 Rd2 Bh7 Re2 Bg6 Rh1 Bh7 Rg1 d2+ Kf1 d1N Nfd2 Nc3 Ke1 Ne4 Qc2 Rf2 Rg5 Rg2 Qc3 Bb8 Qce5 Ng3 Q5e7 Be5 Qc7 Rh8 Bd7 Bb1 g8N+ Kh7 Bg4+ Bg7 Nge7 Kh6 Nc8 Rg8 Bf5
N1n2r2/1Q1b4/1R5Q/p2K1p2/2nB1N2/1R1NqrRp/1qrb1PN1/1Nn2k1N b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Ke2 Kf5 Kd3 h5 Kd4 a5 g4+ Kg5 b4 f5 e4+ Kf6 e5+ Kg6 e6 h3 e7 c6 e8N h2 g5 h4 b6 h3 b7 Ra6 b5 Be7 b6 Qc7 d8N Nd7 b8Q Qb7 Ne2 Kh5 g6 Kg4 g7 Kf3 Bb2 Kg2 Ne6 Ne5 d7 Nc4 d8N Bb4 Qc1 Bd2 N8c7 Bd7 Na8 Ne7 Ra3 Nc8 Rb3 Rf8 Ng3 Ra7 Rd1 h1Q g8R Qe1 Nh1+ Kf1 Rgg3 Ra6 Kc5 d4 Nf4 d3 Ng2 Ra7 Qc7 Qb8 Kd4 c5+ Kd5 Ra6 b7 Rc6 Qd6 Rc7 Bd4 Rc6 Qa3 Rc7 Rc1 Rc6 Rcc3 Qe3 Qb4 Nb2 Qf4 c4 Ba7 Bc1 Qb6 d2 Ra3 Qe1 Ne6 d1R+ Rcd3 c3 Qh6 c2 Nef4 Qe8 Qa6 Rd2 Bd4 Rc3 Ra2 Nc4 Rb2 Re2 Rdf3 Be3 Qab6 c1N Qc7 Qa7 b8N Qb7+ Nc6 Rec2 Rb5 Qb6 Nb4 Bd2 Qb7 Qe1 Re3 Rb3 Re6 Rf3 Nbd3 Qe3 Rb2 Qb3 Rb6 Qa2 R2b5 Qb2 Rb3
B2RBr2/1npBQ1Q1/b1N1p2B/2r1q2k/3BBprb/4n3/1r3Pr1/1NN1K3 b - - 0 1 illegal: No possible last move, all moves rejected
3Q4/1r3p2/4nKpk/p4P1R/2Q2BB1/brrb2Qn/bQ1QBq1R/4Nb1Q b - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 d3 Nc3 e6 Nd5 exd5 Bf4 d4 Bh6 Na6 Bc1 Nb8 Kd2 d5 e4 a5 f4 g6 c4 Na6 b4 Be7 h4 Kf8 e5 Kg7 b6 Nc5 h6+ Kh7 h5 Bd6 b5 Qe7 b7 Qc7 b8Q Qb6 e6 Bd7 e7 Qd8 e8Q Bg4 b6 Be2 b7 Qc7 Qec8 Nf6 Nf3 Rd8 Ne1 Qb6 Rh2 Ne6 c5 Rd7 c6 Ng4 c7 Nf2 Rb1 Ra7 Rb5 Ba3 Qa8 Re7 b8Q Nh3 Qc6 Rb7 Qd8 Rd7 c8B Rdc7 Qc4 Rc6 Rc5 Qa7 Qe5 Rcb6 Qeg5 Rb3 Qg3 Rc3 Bg2 Bf1 Bf3 Nf8 Bcg4 Ne6 Be2 Rbb3 Qc2 Rb7 Kd1 d2 Q2d3 Rcb3 Kc2 d1R Qde3 Rdd3 Qd2 Rf3 Rb5 Rb4 Rc5 d3+ Kc3 Rb1 Rb5 Qf2 Rc5 Re3 Rb5 Neg5 Kd4 Rb3 Rc5 Rf3+ Ke5 d4 Rd5 Ne6 Kf6 Rc3 Rg5 Re3 Qc2 d2 f5 d1B Bd2 Rf3 Bf4 d3 Qb2 d2 Qd7 Kh8 h7 Bb3 Qdd4 d1B Qdd2 Rc7 Ke5 Kg7 h6+ Kf8 Kf6 Rb7 Ke5 Bdc2 h8Q+ Ke7 h7 Bd3 Qhc8 Ba2 h8Q Rcb3 Q8c6 Rc3 Qf6+ Kf8 Qd8+ Kg7 Q6e4 Kh6 Kf6 Rcb3 Qed5 Be4 Qdc6 Rfc3 Q6d5 Beb1 Qh1 Bd3 Rh5#
5Q2/nRRpk3/NQ5K/3b3b/1rrbp1N1/pRbP2Q1/q1r2B1R/1R1n3R b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 b4 hxg4 b6 c6 b5 Rh4 b7 Rh7 b6 Rh8 Bb5 cxb5 Ke2 e5 Ke3 a5 h4 g5 f4 e4 c4 g3 f6 g2 c5 g4 f7+ Ke7 h5 a4 h6 a3 h7 b4 d3 b3 c6 b2 f5 g3 Kf4 Ra6 Kg5 Bg7 f8R Ra7 c7 Bc3 Be3 Bg7 Qe1 Nc6 b8R Nh6 b7 Ng4 Nh3 g1B Nf2 g2 Nc3 b1B Nb5 Ba2 Rb1 Bf7 Bb6 Rg8 h8R Ra4 R8h2 Na7 Bd4 Ne3 f6+ Ke6 Bc5 Nd1 Be3 Bh8+ Kh6 Bh5 f7 Bc3 Bb6 Rg3 Ng4 Ke7 Rg8 Re3 Qg3 Re2 Rg5 Bc5 Rd5 Qg8 f8Q+ Ke6 Rd4 Rb2 Rb4 Rd2 Qf5+ Ke7 R4b2 Qa2 Qff4 Bh8 Rb3 Rb4 Qf5 Ba1 Qg6 Bf2 Be3 Be1 Qb6 Bd4 Bg1 Nc3 Be3 g1R Bf2 Rf1 Ra8 Rb2 b8Q Bb7 c8R Bd5 Nc7 Re2 Na6 Bd2+ Qe3 Rc1 Rc7 Nd1 Qc8 Rc3 Rb8 Rcc4 Rbb7 B2c3 Qg3 Rc2 Qf8+
1n2Nbk1/2R1n3/R1RRRqn1/4p2p/3pKN1R/3QPB1b/Q3r3/rN1qn3 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 f6 g6 Bb7 g7 Bc8 g4 Na6 g5 Nb8 g6 Qc7 Be3 Qd8 Bg5 fxg5 Kd2 d5 Kd3 a5 f4 e5 b4 h5 c4 a4 f5 g4 b6 g3 e3 a3 b7 a2 f6 g2 c5 Rh7 c6 Qb6 f7+ Ke7 c7 Ra7 b5 Qc6 b6 Bg4 c8R Na6 b8R Rc7 b7 Ke6 Be2 Ne7 g8N Qd6 g7 Bh3 Nf6 Rc2 Bf3 Re2 g8Q Rh8 Ra8 Nb8 Ra6 Rh6 Ne8 Rf6 Be4 Rf1 Rc7 Rfe1 Rac6 Rf1 Nf3 g1N Ne1 Nf3 Ng2 Nh4 Bf3 Nhg6 Qb3 Bg4 Rh4 Bh3 Nc3 Rh1 Rd1 a1N Nb1 Nc2 Nf4+ Kf5 Qa3 Qf6 Qd6 Kg5 Ra6 Kh6 Qd7 Nbc6 b8R Rf1 Rbb6 Nb8 Re6 Rh1 Na3 Rg1 Rd2 Ra1 Qb5 Nh8 Qg2 Kh7 Nb1 Nhg6 Qh2 Bg7 f8R Bh6 Rf7+ Kg8 Rcc6 Bf8 Rd1 Nc8 Rc1 Rg2 Rfa7 Nce7 Rcd6 Rf2 Be2 Ne1+ Kd2 d3 Rcc6 d4 Rac7 Rf1 Bf3 Rg1 Qe2 Rg2 Qc4 Rh2 Qa2 Rf2 Kd1 d2 Qec4 Ng2 Kc2 Re2 Kd3 d1Q+ Ke4 Ne1 Qd3
1B4qr/Bb1pB2B/kpp1BRpb/2Q4r/n1rP4/1K2Q2n/N1B1q3/6NN b - - 0 1 legal: proof: b4 h5 a4 e5 f4 b6 fxe5 h4 c4 h3 b5 Na6 gxh3 Nb8 h4 Bb7 c5 Ba6 h5 bxc5 b6 Bc8 b7 c4 Ra2 Qf6 Rb2 Qd8 Rb6 axb6 d4 f5 Kd2 f4 Kc3 f3 h4 f2 e4 Rh6 e6 Ba3 e5 Rf6 h6 Ra7 e7 Ra5 h7 Rf3+ Qd3 Rf7 h8Q Rb5 a5 Bd6 a6 Rf8 h5 Nh6 a7 Bc5 a8B Bd6 Bf4 Ng4 h6 Rb4 h7 Bc5 Rh6 Rg8 Qe3 Rb2 Bh3 f1Q Rf6 Na6 b8B Qd1 Be4 c6 Bc2 Qe2 Ba7 Nf2 Be6 Rb5 Bg5 Ra5 Kb2 c3+ Kb3 Rf8 Qg8 Nh3 h8B Bb7 Bh7 c2 Nc3 c1R Na2 Qe1 Bc2 Bd6 Qh7 Qe2 Qh5+ Rf7 Bh7 Rc4 Bf4 Bb8 Qf5 Rf8 Qc2 Rca4 Qc5 Rc4 Qa3 Ba8 Rf5 Nb4 Rf7 Rac5 Qa5 Rd5 Qc5 g6 Bf6 Bc7 Bf5 Rh8 Bc2 Nd3 B6g5 Bb7 Rf5 Nb2 Bf6 Kf7 e8N Ke6 Be7 Ra4 Nd6 Qg8 Ne4 Bb8 Nf2 Rb4+ Ka3 Na4 Nh1 Bc7 Qcc3 Rc5 Rf6+ Kd5 Bg3 Rbb5 Qb4 Ra5 Kb3 Bd6 e6 Bf4 Bf8 Bh6 e7 Rab5 e8B Ra5 Bgb8 Rab5 Bfd6 Ra5 Ka3 Rab5 Qa5 Kc4 Be7 Rh5 Bf7+ Rbd5 Qac3+ Kb5 Kb3 Rc5 Qb4+ Ka6 Be6 Rc4 Qc5
1B1b3k/1rn1n1rn/1N5P/NR2b3/bN3Rr1/B2R2R1/3RRK2/r1nqR3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 f4 h6 g4 Qd7 f5 Qd6 Qa4 Qd8 Qf4 gxf4 g5 h5 Be2 Na6 Bd1 Nb8 Bg4 hxg4 d4 Kf7 b4 a5 h4 c5 g6+ Ke8 h5 e5 b6 a4 b5 a3 f7+ Ke7 d6+ Kf6 g7 e4 b7 a2 d5 f3 b6 c4 d7 e3 d6 c3 Nd2 e2 Nb3 g3 Rh2 g2 Kf2 e1N Ne2 g1R Nf4 c2 Na5 Be7 f8N Ra7 Nd3 Rh7 Nb4 Na6 b8B Rg4 b7 Nc7 Ba3 c1N h6 Kf7 Rb1 a1B f6 Be5 Ra1 Ng2 Rb1 Nf4 Rg2 Nh5 Rg3 Qe8 d8R Qa4 Nd7 Qd1 Nb6 Bd7 Ra1 Bc6 d7 Ba4 Rg2 Kg6 f7 Nhf6 Re8 Bd8 f8R Ne7 g8R+ Rg7 Rb1 Nh7 Rf4 Nf8 Rb3 Kh7 Rd3 R7g5 Rg6 Kh8 Re6 Rg7 Rg3 Ba1 Re1 Be5 Kg1 f2+ Kg2 f1R Re2 Rg1+ Kf2 Ng8 Re1 Nh7 Rd2 Bh4 d8R Rh1 R8d7 Bd8 Re6 Ne7 R7d3 Bd4+ R6e3 Be5 R3e2 Ne6 Bd6 Nc7 b8R Rb7 Nc8 Ra7 Rb5 Rb7 Nb6 Ncd5 Rf7 Qb3 Rg2 Na2 Bb8 Nc7 Rgg3 Qb1 Reg1 Qc2 R1g2 Ra1 Rg1 Nc1 Rge1 Qd1 Rf4
bKb3Bb/1R1bpnq1/2Br2NB/6R1/1R1nb1R1/nRNR3P/2R4k/2r5 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 a4 Nf6 Qd2 Qb6 axb5 Qc7 b6 Ng8 b5 Qd8 Qb4 axb4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 b3 f4 g4 c4 b2 h3 g3 b7 g2 c5 d3 c6 d2 c7 d1B b6 d6 h6 Ra3 h7 Bh5 Rh2 Nd7 Kc6 d5 b8R d4 b7 d3 Nc3 b1B Nd5+ Kg7 f6+ Kg6 f7 Kf5 Ne2 g1N Bg2 Ra7 Ra4 d2 Rb4 Bg7 f8R+ Ngf6 Rg8 Bf3 Rb3 Ke4 f5 d1B Bh6 Ng4 f6 Ne3 f7 Ra1 f8R Nc4 Ndf4 Na3 Rf5 Qf8 Rg5 Ne5+ Kb6 Bd3 Ka7 Nf7 Ng6 Rc1 Ka8 Bd7 c8B Ba1 Bh1 Qg7 Rd8 Re8 h8R B1c2 Rhg2 Ba6 Rg8 Rf8 Rb4+ Ke3 R2g4 Kf2 Rgc4 Bce4 Rc2 Bg2 Rb3 Nf3 Rb4 Ba4 Rd3 Rd8 Be6 Rd6 Bb3 Nd4 Bc4 Qf8 Rg7 Bd7 Ba2 Ne5 Bg8 Nf7 Rbb3 Bef3 Rg4 Ne6 Nh8 Be5 Ka7 Nd4 R7g5 Bd5 Ng6 Bh8 Rbc8 Qg7 b8R Bgf3 R8c7 Bac8 R8b4 Ba8 Rcb7 Bd5 Kb8 B5c6 Ng3+ Kg1 Ne2+ Kh2 Bf3 Bf5 Be4 B6d7 Bc6 Be4 Nc3+
2r2B2/NNn1R3/3qbK2/1b1N3r/n3N3/2pN2PR/2qn4/kNb1bRNB b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g3 gxf4 Ra4 h5 Qf3 h4 Ra1 h3 Qg2 hxg2 Ke2 Kd7 Kd3 Kd6 Kd4 a5 h4 e6 b4 c6 h5 a4 f6 a3 b6 a2 f7 f3 b5 f2 b7 Qe7 h6 Qe8 b6 Be7 f8N Ra5 h7 Bg5 Ng6 Nd7 b8N Qd8 b7 Nc5 Nf4 Na4 Nd3 Ne7 Nd7 e5+ Ke4 c5 b8R c4 Nb6 c3 Rh3 Be6 Rb7 Rg8 h8N Qb8 Rc7 Rc8 Ba3+ Rc5 Be2 f1B Bf3 Be2 Nd7 Qb3 Nf6 Qc2 Ng6 Be3 Nf4 Bf1 Nge2 g1N Bh1 Nf3 Ng1 Be2 Bb4 Bf1 Na3 Be2 Rf1 a1Q Nb1 Qa3 Rb7 Nf5 Re7 N5d4 Nd7 Nb5 Nf6 Bg8 Kf5 e4 Nh7 Bf7 Ng5 Nc7 Kf6 Bg8 Ne5 Bb5 d4 Bc1 Ned3 Qab2 Ba3 e3 Bb4 e2 Ba3 e1B Bb4 Na8 Ba3 Nd2 Bb4 Bd7 Ne4+ Kc7 d6+ Kb6 d5 Kb5 Ba3 Kc4 Bb4 Be8 d7 Kb3 d8N Ka2 d6 Bb5 d7 Ka1 Nc6 Rh5 d8N Be6 Na7 Nc7 Nd5 Qa3 Bd6 Qb4 Nb7 Qc5 Re8 Qb6 Bf8 Qd6 Re7
6N1/r2qn1B1/p1r1q2P/KR4b1/2b1BR2/4R1Rp/3B1RRn/k2bRN1q b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 h4 g5 h5 h6 Qb3 Qd6 Qg3 Qd7 Qh4 gxh4 g5 Qd6 gxh6 Qd8 d4 Ke7 Kd2 Kf6 Kc3 c5 b4 c4 e4 a6 h7 f3 d6 f2 d7 h3 b6 Be7 e5+ Kf5 d5 Ke4 h6 f5 d6 f4 b7 f3 e6 Kd5 b5 Nf6 Kb4 Kd4 b6 c3 Ne2+ Kd3 Ra2 c2 Nd2 Qf8 d8R Nbd7 b8R Nh5 b7 Qg8 Bg2 f1B Nf4+ Kd4 Ng6 f2 Be4 Ng3 Ka5 Kc3 Rf8 Nb6 d7 Bc4 d8R f1Q Rd4 Qd3 Re1 Nd5 Nf1 Bg5 e7 Ra7 e8R Qe6 Rf2 Ne7 Bd2+ Kb3 Ra8 c1Q b8R+ Bb7 Ra3+ Kb2 Re3 Rf8 h8B Rf6 Bg7 Kb1 Rb3+ Ka1 Re1 Bbd5 R8b5 Qd1 Rac8 Qf3 Rbe3 Qh1 Rg8 Bb3 Rc2 Bdc4 Bb7 Ba4 Rdf4 Bab3 Be4 Ba4 Bc1 Qdd7 Rcc3 Bd1 Bd2 Ne2 Rg3 Nd4 Rce3 Nf3 Rgg2 Nf5 Ne7 Nh2 Bf8 Rg6 Rg7 Rf6 Ng8 Ne7 Rgg3 Qed5 Rg6 Rc6 Bg7+ Qe5 Rgf6 Qee6 Rfg2 Be2 Rff2 Bc4 R6f4+
3B1NR1/1N1n2p1/1BNN2B1/2n1np2/2bN4/1krr2b1/rN4P1/r2RN1Kb b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Qh4 d6 Qxh2 f4 Kd7 d4 Ba6 e4 Kd8 d5 Ne7 Qd4 exd4 e5 Bc8 e6 Ke8 Ra2 Qh5 Ra1 Qe5+ fxe5 Ng8 Kf2 c5 b4 a5 b6 h5 b7 c4 b5 a4 d7+ Ke7 d8N h4 b6 f6 Nc3 d3 Nd1 h3 Nb2 a3 Be3 h2 Rd1 d2 Nf3 c3 Ne1 a2 Bd3 a1R Bg6 Na6 b8N c2 b7 c1N Nd7 f5 b8N Nf6 Nb7 Rh3 Bb6 Rc3 Kf1 Nb3 Kf2 Na5 Kf1 Nc4 Kf2 Nd6 Kf1 Nf7 d6+ Ke8 e7 Nc5 Nc6 R8a2 Nbd8 Bb7 Nd4 Bd5 N8c6 Bc4+ Kf2 Rc2 Rf1 h1B Kg1 Rcc1 Rf3 Rc2 Rh3 Rcc1 Rh8 Rc3 Rc1 d1R Rg8 Rdd3 Rd1 Na4 Nc5 Nd7 Nce6 Ndc5 Ncd8 Kd7 e8N Be7 N8c6 Bh4 Nf8+ Kc8 e6 Kb7 e7 Ka6 d7 Bg3 d8B Nd7 Rc1 Nac5 Nd6 Nfe5 e8N Ng4 Nb7 Nge5 Ndc2 Kb5 Rd1 Ne6 Nca5 Nec5 Nd4+ Kb4 Ned6 Ka3 Ndf3 Kb4 Nc6+ Kb3 Nfd4+
4nbr1/5P1R/RKBp1rbN/2N1p1nR/R1B3Rb/R5R1/1k2n1pq/3N4 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 g4 h6 f5 Rh7 Bf4 Rh8 Qd3 Kf7 Qg3 gxf4 g5 Ke8 g6 Qc7 Qh4 Qd8 Qg5 hxg5 Kd2 e5 Kd3 a5 Kc4 f3 b4 g4 h4 a4 f7+ Ke7 f6+ Ke6 h5 a3 g7 a2 h6 g3 b6 d6 Kb5 Kd5 c4+ Kd4 c6 f2 h7 g2 c5 Ra6 c7 Bd7+ c6 Be7 c8R Be6 f8N Bf5 b7 Nh6 g8R Qe8 f7 Ng4 Nc3 Qd8 c7 Nc6 b8R Nh2 Ne6+ Ke3 Rg4 Kd2 Nge2 Kc2 Rb6 Ra7 Nc5 Nf3 Nd4+ Kb2 Bc4 f1N Rh5 Bf8 Ra8 Ng5 c8B Ra3 Ra4 Ng3 Bb7 Ne7 Bc6 Rg8 h8R Nd5 R8h7 Bg6 Nf5 Nf6 Rba6 Ne8 Nh6 Ne2 Rg3 Qf6 Kb6 Qf4 b5 Rb3 Rg4 Qh2 Rg3 Kc2 Nd1 Rf3 Kb7 Rf2 b6 Rf6 Ka7 Rf5 b7 Rf6 Nf2 Kb2 b8R+ Kc2 Kb6 Kb2 Rg1 a1B Nd1+ Kc1 Rh1 Bd4 Rba8 Bf2 Rf1 Be1 Rf4 Kb1 Rfg4 Kc2 Rd3 Bh4 Rdg3 Kc1 Raa3 Kb1 R6a4 Kc1 R8a6 Kc2 Nf2 Kb2 Nd1+
NR1q1N1B/2r1N3/1q6/5P1q/NbBR1bk1/B2p1n1p/3p1K2/2nNN1Nb b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 f5 Qb6 Qe2 Qc7 Qd1 Qd8 h4 Qb6 g4 Bg7 Qf3 Qc7 Qf4 gxf4 g5 Qd8 g6 Bf8 Bc4 a5 Bd2 Ra7 Bd3 Rc7 Bc1 Rc3 Bc4 Rg3 Bf1 Rg5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 b4 d5 c4 h5 c5 e5 f7+ Ke7 b6 f3 g7 a4 b5 a3 c6 a2 g6 Kf6 b7 d3 b6 d2+ Kf2 Kg5 c7 h4 Bc4 e4 Ba3 e3+ Kf1 h3 Nc3 e2+ Kf2 d4 Nd1 Ne7 g8N d3 g7 Nd7 b8B Nc5 b7 Rh7 Nh6 Ng6 g8N Ne5 Ng4 Nb3 Nge3 Bb4 f8N Nc1 Ng2 Kg4 Ne1 Rf7 Rb1 a1Q Ne7 Qb2 Ra1 Bd7 c8N Bc6 Nb6 Rg7 Na4 Bd5 Nc8 Rc7 Ncb6 Bc6 Na8 Qb1 Ke3 f2 Ba7 f1Q b8N Qg2 Bd4 Nf3 Bh8 Qg3 Ra2 Qgh4 Ra1 Bd5 Nc6 Qh5 Ne7 Qb2 Rb1 Be4 Rh2 Bb7 Rf2 Bd5 Nc2 e1B Re2 Bh4 Ne1 Bg5+ Kf2 Bf4 Re4 Qf6 Rd4 Qb6 Ng2 Nh2 Ne1 Bh1 Rb2 Nf3 Nc6 Bc5 Rb5 Bb4 Ne7 Qbh6 Rb7 Qb6 Rb8
1NR3r1/1B1b4/RK2p1RR/B2b4/rpq1q3/nPR1RN1k/3Np2r/1R3q2 b - - 0 1 illegal: No possible last move, all moves rejected
1R6/kp1Nb2R/2Rpp1b1/Nr2N2b/1N1NN1NP/pnnK3b/4B2B/6q1 b - - 0 1 illegal: No proof kernel
5KRb/2b1Rp1p/n5b1/2BB2rq/4R3/rRkbRP2/2B2rnR/1nN2R1N b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 cxd5 Kd7 d6 Ke8 d5 Nf6 Qd2 Ng8 Qd4 exd4 Kd2 Kd7 Kd3 a5 Ke4 c5 Kf5 c4 b4 h3 g4 h2 e4 c3 b6 c2 e5 a4 e6+ Ke8 g5 a3 d7+ Ke7 b5 Kd6 e7 Kc5 e8B Kb4 g6 d3 d6 a2 g7 d2 f3 d1N b7 Kb3 b6 Kb4 Bd3 Ra6 Nd2 Nc3 Ba3+ Ka5 Nf1 c1R Ne2 Re1 Bc2 Nf6 g8R Ng4 Nfg3 Rf1 Bc5 Nb1 Nc1 Ne3+ Ke5 Qc7 Kf6 Ng2 d8R Bf5 d7 Bd6 Kg7 Rf2 Rc8 Be5+ Kf8 Bg6 d8R Bf4 Rd3 Qe5 Rc3 Qh5 Re3 Bc7 Bc6 Ra8 Re4 Na6 b8R Ra7 Rf1 h1B b7 Ra8 Bd5 Ra7 Bd4 Kb4 Bc5+ Kc3 Rce8 Ra8 Rbc8 Ra7 b8R Ra8 R8e5 Ra7 Ke7 Ra8 Rge8 Rg8 Rb3+ Kd2 Nge2 Ne1 Rf4 Nb4 Ree3 Nc3 Rfe4 Bg2 Nd3 Ra3 Rh1 Bf5 Ng3 Na6 Nb4 Bf1 Rb8 Ng2 Rh2 Bd3 Nh1 Rg5 Rf1 a1B Na2 Nb1 Nc1 Bh8 Rbd8 Bg6 Rg8 Qh4 Kf8 Qh3 Rde8 Qh5 Rbb8 Kc3 R8e7 Re5 Rb5 Rg5 Rb3+
1q5q/5B2/p2rqn1R/2Bb2K1/R2nRRRr/2N1p1RN/2q1Pb1N/R3k1q1 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Qg3 hxg3 d4 Kd7 Kd2 Kd6 Ke3 g5 b4 c5 f4 e5 h4 g2 b6 a6 h5 e4 h6 g3 f5 g4 Kf4 e3 b7 c4 h7 c3 b5 c2 b6 Nh6 f6 Bd7 f7 Qe7 Nc3 Bf5 Nf3 g1Q Bg2 Qh4 Ra4 Nc6 b8R Qf1 b7 Be6 Re8 Ng8 b8R Nf6 Rbb4 Be7 f8R Rd8 Ba3 Qb1 Nh2 c1Q Rg8 Qh3 Kg5 Qcc2 Rg6 Qbb3 Ra1 Bg8 Be4 g2 Bf5 g1Q Be6 g3 Bf7 g2 Rc4+ Kd7 d6 Qh1 d5 g1Q+ Rg4 Nd4 Bc5 Qb8 Rg3 Qe6 Rf8 Kc8 d7+ Kb7 d6 Kc6 Rg4 Rc8 d8R Rc7 Ba7 Rd7 Rde8 Rd8 d7 Kd6 Rb1 Ke5 Rba1 Bb4 Bc5 Qha8 Na2 Be1 Nc3 Bf2 Rg3 Rc8 d8N Rc6 Rg4 Rd6 Rg7 Qe7 Ne6 Qah1 Nf4 Qe6 Nb1 Ke4 Nh3+ Kd5 Ra5 Kc4 Nc3 Kb3 Re7 Kb2 R1a4 Kc1 Ra1+ Kd2 R5a4 Qeb3 Re4 Qba2 Bg6 Bd5 Bf7 Qab3 Rfe8 Q3b6 Rf4 Qc6 Re7 Qcc8 Ree4 Qe6 R1a2 Ke1 Rg6 Rf8 h8R Rg8 Rh4 Rh8 Rg3 Rh6 Rhg4 Rh4 Rh6 Qec8 Re7 Qh8 Re6 Qhe4 Re8 Qe6 Re7 Qec8 Ree4 Qe6 Ra1+
nrqN2B1/BN1kqN1b/1r2p1N1/7p/q1qr2B1/R6R/Pn1R1K2/1N5N b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 g5 e5 d5 cxd5 f6 exf6 Ra7 Qg4 Ra6 Qd1 Ra8 f4 Na6 g4 Nb8 h4 Ra5 f5 Rc5 Qf3 Bd7 Qf4 gxf4 g5 Bh6 g6 Bc8 Kd1 Bg5 hxg5 Ra5 Ke1 Ra8 d4 c5 f7+ Kd7 f8R b5 g7 h5 d6 c4 g6 b3 d5 c3 f6 b4 f7 b2 Rh2 f3 Be2 f2+ Kf1 c2 Bd1 b3 Re8 Na6 Ne2 Nh6 g8B Ng4 g7 Ne5 Ng3 Nc4 Be3 c1Q Nh1 Rb8 Rh3 Nc7 Ba7 Na8 Rf8 Qc2 Bg4+ e6 Kg2 f1Q+ Kg3 Qfd1 Re8 Qcc1 Kf2 Qe7 Rf8 Ba6 Re8 Rd8 f8N+ Kc8 Ng6 Kd7 Rf8 Rb8 Rff3 Qdc2+ Nd2 b1Q Rc3 b2 Ra3 Kd8 d7 Qa4 Be2 Qbc2 Nb1 Kc7 d8N Kd7 d6 Bb5 Nb7 Qcb3 Bf7 Rhd8 g8N Bc6 Bf3 Be4 Bg4 Qbb4 Nh6 Bd3 Nc3 b1R Bg8 Nb2 Nf7 Bf5 Ne2 Qc8 Nc3 Kc6 d7 Qc4 Nf8 Bh7 Ng6 Rf8 d8N+ Kd7 Bf3 Rd1 Bg4 Rd4 Rd1 Re8 Nb1 Rf8 Nd6 Rb6 Rd2 Q8c7 Nc6 Rfb8 Nb7 Qc8 Ncd8
4R1r1/1nqr2B1/2b3R1/1pp2NBr/3NknBB/1N3q2/P2p2R1/K1B1Bn2 b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 c5 h5 gxh5 d6 cxd6 Qd7 Qb3 Qe7 Qd1 Qd8 d4 Qg5 e4 Rh7 f4 Nf6 d5 Be7 Qd4 exd4 e5 Ng8 e6 Rh8 Nf3 Bf6 Ng1 Be5 fxe5 Qd8 Kd1 b5 Kc2 f5 Kb2 g5 h4 c5 d7+ Ke7 d6+ Kf8 e7+ Kg7 e8R b3 h6+ Kg6 e6 d3 h7 g4 e7 g3 Be2 f4 h5+ Kf5 h6 f3 Rh2 g2 Nd2 f2 Ngf3 g1Q Rg2 Qc7 d8B f1N d7 Qf2 Nd4+ Ke5 Bf3 Nc6 Bg4 Bb7 Rb1 Rb8 Ka1 Nf6 Rb2 Rg8 h8B Qf3 h7 Na5 Bg7 Bc6 h8B Nb7 Rc2 Ra8 Rc4 Ra3 Ra4 Kd5 Ra6 Nh5 Rb6 Nf4 Ra6 Qc8 Ba5 Ra4 d8B Qc7 Bh6 Rc4 Bg5 Rc2 Bg7 b2+ Kb1 Rc3 N2b3 Ke4 Bb4 Rc4 Be1 d2 Bgh4 Bd7 Rg6 Bc6 Rf8 Ra4 e8N Ra3 Bdg5 Ra7 Kc2 b1R Nd6+ Ke3 N6f5+ Ke4 Ba3 Rc1+ Kb2 Rc3 Ka1 Rd3 Nc2 Rd7 Bc1 Ra8 Rc8 Rh8 Rf8 Rh5 Ncd4 Rc8 Rf7 Rch8 Rf8 Rg8 Re8+
1rN1r1Br/3N1q2/1b4k1/pBp1rRNp/5P2/1r4R1/b1BB2K1/2RBBn2 b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 h4 gxh4 c4 Bg7 a4 Ne7 axb5 Ng8 b6 Bh6 b7 Bf8 e4 f5 e6 Bd6 e5 Ne7 b5 Ng8 Qc2 Nc6 Qe4 Nd4 b6 Nb5 cxb5 fxe4 Be2 Ba3 Bf1 Bf8 b8R d5 g4 c5 e7 Kf7 e8B+ Kg7 b7 h5 b6 a5 e6 h3 e7 h2 g5 e3 g6 e2 Bd2 d4 Nc3 d3 Na4 Qd7 Ra3 Rh6 Nh3 Ra7 Ng5 Rh8 f4 Qf5 Kf2 e1R Bb5 Ra8 e8B Be7 Kg2 Nf6 Be2 Be6 Bd1 Re5 Rc3 Kh6 g7 Ba2 g8B Bd8 Bg6 Nd5 Re1 Bc7 Rf8 h1R b8B Qf7 b7 Rh3 Nb6 Rf3 Nc8 Bb6 Bc7 Rb8 Bd8 Rfe3 Ra3 Re8 Rc3 R3e5 Re3 Kg7 Rc1 Kh6 Rg3 Ne3+ Kf2 Nf1 Kg2 Kg7 Bf6+ Kh6 Be1 d2 Bgc2 Re4 Bc3 R4e5 Bf3 d1R Bcd2 Qg7 Rf5 Qf7 Bb4 Rdd8 Bbd2 Kg6 Bg4 Rd3 Bgd1 Ra8 b8N Rb3 Nd7 Rb8 Bg4 R8e6 Bf3 Re8 Bfd1
2Br1bn1/p2Bn1q1/2B2R1n/3Bn2N/r3br1R/1qq5/P1N3RB/1N1KB2k b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Qd3 h4 Qg3 hxg3 h4 Kf7 f4 Ke6 e4 g5 c4 d5 c6 b5 c7 g2 h5 d4 h6 d3 h7 b4 c5 d2+ Kd1 b3 c6 b2 Rh4 g3 Nf3 g1N Nh2 g4 Nf3 g2 Ne1 g3 Nc2 Bb7 c8B+ Qd7 c7 Nf3 Be2 g1Q+ Bf1 Qc5 Bg2 Nc6 f5+ Kf7 e6+ Kf6 e5+ Kg5 f6 Nce7 f7 Be4 Bb7 Qc3 Bc6 Rd8 c8B Qb7 Bd5 Qbb3 Bh3 g2 Bg4 Nf5 e7 Kf4 e8B Kg3 e6 Nfe7 Bec6 Ne5 Bh3 Kh2 B8d7 Nc8 e7 Kh1 e8N Nce7 Nf6 g1Q+ Ke2 d1N Nh5 Qcb4 Bf4 Qg7 Bh2 Nf2 Bhe6 Nfg4 Kd1 N4h6 Bc8 Nf6 Bed7 Rg8 h8R Q4c3 Rh7 Rh8 Rf4 Nfg8 Rh4 Qf6 Rg7 Rh7 Rg2 Rg7 Na3 Rg4 Rc1 Qg7 Nb1 Nef5 Nf6 Rf4 Nh5 Bd6 f8B Bc5 Nd2 b1R Bd6 Ba3 Bb4 Rb2 Ba5 Bf8 Nb1 Nfe7 Bb4 Qe3 Be1 Qbc3 Nd2 Rb4 Rb1 Rd4 Rb6 Ra4 Nb1 Qb3 B6b7 Qh3 Rf6 Qhc3 Bbc6
1R6/1pr2NqR/1q6/q1R1rbk1/bR1nR3/1P1BN2B/p1n1RBn1/1NK1b3 b - - 0 1 illegal: No proof kernel
3b2N1/2nQ2Q1/NN2qnr1/4Rrb1/3Qb1kN/b1Q5/p3n2P/K1B1Q2B b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 a5 g4 h5 b4 axb4 Ra3 bxa3 gxh5 Rh6 Ke2 Rh7 Ke1 Rh8 f4 Kf7 d4 Kf6 Kd2 g5 Kc2 c5 d6 e5 b6 a2 Kb2 g4 d5 c4 d7 e4 b7 c3+ Ka1 g3 h6 c2 h7 e3 d6 e2 Bg2 e1B Nd2 Ne7 Nc4 Bf2 Nf3 Ba7 Nh4 Nd5 Qe1 Bc5 Nb6 Rg8 h8Q+ Kf7 f6 Ra5 f5 Na6 b8N Qe7 d8Q Bb7 d7 Nac7 Na6 Rg6 Rg1 Qe6 Bh1 g2 Qc8 Nb4 d8Q Nbd5 Qcd7+ Bfe7 Rf1 g1B Rf2 Be3 Re2 Bg5 Re5 Bc5 Q8c8 Ba3 Qhd8 Ne8 Qcc3 Ndc7 Qdd4 Be4 Q8d7 Kf8 f7 Kg7 f8N Kh6 f6 Kh5 f7 Kg4 Nh7 Nf6 f8Q Bd8 Qfg7 Rd5 Bf4 c1N Bd2 Ne2 Bc1 Bf4 Ng5 Rb5 Nf7 Bg5 Nh6+ Kh5 Ng8 Kg4 Rd5 Ra5 Rd6 Re5 Rd5 Rf5 Re5
4B3/K3Q2b/Bn2pnR1/R1P1r1Q1/bB1RR3/3q2b1/B2B1N2/1nk3qb b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Qc7 f5 Ke8 Nc3 Qd8 h4 Na6 g4 Bh6 Nce2 Nb8 Nf4 gxf4 g5 Bg7 g6 Bf8 Bd2 a5 Rc1 Ra7 Be3 Rc7 Ra1 Rc3 Bd2 Rg3 Bc1 Rg5 hxg5 Qc7 Rh6 Qb6 Rh1 Qd8 Kd2 h5 Kd3 d5 b4 Kd7 c4 Kd6 g7 Ke5 b6 a4 b7 h4 f7 h3 g6 h2 b5 f3 f6 a3 b6 f2 Bd2 a2 Qc1 Nc6 b8R Na7 b7 Rh5 Nh3 Bg4 c5 Nc8 Bb4 Nb6 Rg1 h1B Rc8 Bd7 b8B+ Kf5 Rg2 Ba4 Bg3 Kg4 Ra8 Kf3 Ra5 Re5 Qg5 Qd6 Rd1 a1Q Re1 Qd7 Re4 Qa3+ Kd2 d3 Rd4 Qa2+ Kc3 d2 Ba6 f1B Be1 d1Q Nf2 Bd3 Re4 Qad2+ Kd4 Nh6 g8B Ng4 g7 Qb5 Bh7 e6 g8B Be7 f8Q Bd6 f7 Nf6 Qe7 Bb8 f8R Bc7 Rh4 Ke2 Bf7 Qb1 Be8 Bf5+ Nd3+ Kd1 Re4 Kc2 Rg8 Qc1 Rg6 Bb8 Bf2 Qg1 Rgg4 Qdd1 Re3 Nc4 Rg8 Kb1 Rh3 Re3 Rh2 Bg3 Rhh4 Re5 Kc3 Qd7 Be1 Qd6 Nf2 Bg6 Rf4 Kc1 Rhg4 Bd3 Be4 Qd8 Bf3 Bh7 Rg6 Qb3+ Kd4 Qa2 Kd3 d4 Bd5 Qb2 Bab5 Nb6 Ba2 Na8 Kc4 d3 Rh4 d2 Ba6 d1N Rhg4 Qbd2 Rh4 Bb3+ Kb5 Q8d3+ Rc4+ Bc2 Re4 Nc3+ Kc6 Ba4+ Kb7 Nb6 Rd4 Nb1 Kb8 Qb5 Ka7 Qd3 Bexd2+
3NK2Q/1b1Q1NPk/3R4/p4N1q/1nqBBqnb/2p1N1B1/6N1/2Br3r b - - 0 1 legal: proof: d4 g5 b4 f5 g4 b5 c4 d5 cxd5 e5 dxe5 f4 a4 Qe7 axb5 Qd7 Ra3 Qd8 Rg3 f3 h4 gxh4 exf3 hxg3 f4 Ke7 f5 Ke8 Kd2 Kf7 Kd3 Kg7 Kd4 a5 f4 h5 f6+ Kh6 d6 c5+ Kd5 c4 e6 c3 f5+ Kh7 b6 g2 b7 h4 g5 h3 e7 h2 e8N Nd7 Kc6 Nc5 b8N Nb3 b5 Bh6 b6 Bg7 f7 Bd4 f8B Bf6 b7 Ra7 d7 Bg7 f6 Kg6 f7 Rh4 Na3 Be5 Nc2 Rh3 Ne2 g1Q Bc5 Bd4 f8Q Bh8 Bg2 Rf3 Nd6 Rf1 Nf5 Ra8 Be4 Nh6 Nce3 Na1 Nf4+ Kh7 Bd4 Bf6 Nfg2 Qf2 Kd6 Ra6+ Nc6 Nc2 b8B Qc7+ Ke6 Bb7 d8N Qe2 Nf7 Qf4 Kd7 Qc4 Ncd8 Nb4 Ke8 Rd6 Qa4 Ng4 Qd7 Re1 Rf1 h1Q Rg1 Re2 Rd1 Re1 Rd2 Rd5 Bbe5 Qh5 Rd1 Qf3 Bg3 Rh1 Bb6 Rc5 Rd6 Rd5 Bc5 Rdd1 Bd4 Qa6 Qfe7 Qf4 g6+ Kg8 g7 Qc4 Qf8+ Kh7 Nc6 Be7 Nd8 Bh4 Qh8#
1Q2N3/qQr1n1rq/RN1RRb1P/1Kpp2Nk/8/1pR5/2B2rN1/3Nn3 b - - 0 1 legal: proof: e4 h5 c4 b5 g4 f5 exf5 a5 b4 axb4 gxh5 Ra3 Bb2 Ra7 Bc1 Ra8 cxb5 e5 d4 c5 d5 Ba6 Be3 Bb7 Bd4 Bc6 dxc6 exd4 Ke2 Kf7 Kd3 g5 Kc4 g4 f4 g3 a4 d6 h4 b3 c7 g2 c8N d3 f6 d2 a5 Nh6 b6 Qc7 a6 Qb7 f5 Rh7 a7 Qe4+ Kb5 Qe3 b7 Qe5 Qf3 d1Q Bd3 Qe4 Nc3 Qc1 Nh3 g1R Bc2 Rg5 Nd1 Rg2 Nf4 Qb1 Rh3 Rg1 Nb6 Rg6 Ng2 Rg5 Ra6 Nc6 b8Q Ng8 h6 Qd4 h5 Na5 Qfb7+ Ne7 Rc3 Rhg7 h7 d5 h8R Nc6 Rh6 Nb4 Rg6 Nd3 h6 Kg8 f7+ Kh7 Rd6 Ne1 f6+ Rf5 Re6 Kg6 Rd6 Kh5 Re6 Rh7 Rd6 Bg7 f8N Qa1 f7 Rf2 Ne6 Bf6 f8R Qe4 Ng5 Rg7 Rc8 Qf5 Rcc6 Qh7 Re6 Qa2 Rcd6 Qa3 Qd8 Rb8 a8N Rc8 Nc7 Qa2 Ne8 Rc7 Ra8 Qa7 Qdc8 Qb8 Ra6 Qa7 Qcb8
QN3r1r/6N1/B1n1Nr1p/Pp1r2p1/rBb1Q2B/4NB1R/N4K2/1bk5 b - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 axb4 a4 f5 e4 c6 d4 Qd6 e5 Qf6 e6 Bd7 d6 Bc8 d5 Qh6 Ra2 Qe3+ Ne2 Qb6 Ng1 Qd8 Ba3 Qc7 Bc1 Qd7 exd7+ Kf7 h4 g5 f4 Na6 h5 Nc7 Re2 Ne6 Re5 Bg7 Re4 fxe4 g3 Nf8 f5 Ng6 hxg6+ Kf8 Kf2 Be5 Ke1 Bf4 gxf4 Ra6 Nc3 Ra5 Nb1 Ra8 d8N Kg7 a5 Kf6 d7 e5 d6 h6 g7 e3 Nh3 e2 Bd2 b6 Nf2 c5 Rh3 e4 Ne6 b3 d8Q+ Ne7 g8B b2 d7 c4 Nc3 b1B Qc2 Rb8 Nfd1 Ba6 Kf2 e1R Ne3 Rd1 Be1 Rd5 Ng7 Ra8 Qc8 Nc6 d8N Rb8 Nde6 Bb5 Qa6 Rf8 Qa8 Ba6 Ncd1 c3 Bg2 Be2 Bf3 Bc4 Qd3 c2 Nc3 c1R Qc2 Ke7 f6+ Kd6 f5 Ke5 f7 b5 f6 Rcd1 Bh7 R1d4 Bf5 Be2 Qd3 Ra4 Qc2 Bc4 Qd3 Rc8 f8B Re8 Bb4 Ref8 Nd8 Kf4 f7 Re8 f8N Re6 Qc2 Rf6 Nd7 Rff8 Ned1 Rf6 Nb8 e3+ Kg2 e2 Bh4 e1R Ne3 Red1 Bc8 Rdf5 Ba6 Rdd5 Kf2 Rff8 Bg2 R5f6 Qg6 Ke5+ Bf3 Kd4 Qe8 Kd3 Qe4+ Kd2 Nde6 Kc1 Na2+
1r2rnNR/1N1Q2np/k2NP2p/6Q1/Q1p2K2/Nq3NR1/4Bp2/2Qq3q b - - 0 1 legal: proof: c4 a5 f4 d5 cxd5 e5 b4 exf4 a4 b5 axb5 a4 Na3 Be7 Nb1 Bc5 Bb2 Ne7 Bf6 Bb6 Bg5 Ba5 bxa5 Ng8 g4 Qf6 Bh6 gxh6 g5 Qe7 h3 Bg4 hxg4 Qd8 Kf2 Kd7 Kf3 Kc8 d4 Kb7 e4 f5 d6 c5 g6 c4 d7 a3 d5 a2 a6+ Kb6 e5 Qc8 d8N Qd7 e6 Qf7 d6 Qd7 g5 Nc6 g7 Nf6 g8N Qe7 a7 Qf7 g6 Qg7 d7 Rb8 a8Q Qe7 g7 Ng4 Na3 Qb4 Rh3 Ne3 Be2 Qc3 Nb7 Qb3 d8N Ne7 Rg3 Ng6 Qc1 Nf8 Nf7 Re8 Rb1 a1Q Qa4 Qd4 Nfd6 Qdd1 Nf6 Rb8 g8Q Re8 Qg5 Rb8 Kf2 f3 Ng8 f4 Rb2 Nf5 Rd2 Ng7 Rd5 Qdd3 Rc5 Qd2 Rc8 Qa5 Rd8 Ka7 b6+ Ka6 Kf1 f2 Kg2 Qd1 Kf3 f1Q+ Kg4 f3 Kf4 f2 Nf3 Qfe1 Qd7 Qaa4 Nf6 Rc8 Na5 Qh1 b7 Qab3 Qa4 Nd7 b8Q Rf8 Qc7 Rb8 Re8 Rf7 Rh8 Nf8 Qcd7 Re7 Ng8 Ree8 Nab7+
8/1Bk1p1K1/nqQn1PNn/3QQQ1p/1p3n2/1rRp1Q2/5B1p/1B1R1B2 b - - 0 1 illegal: No possible last move, all moves rejected
1n2n2B/1r1r3b/n2b4/RqQ3K1/R4r2/BQqPbRRB/4k3/3NqB1B b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Qf6 Na3 Qa6 Nc2 Qh6 axb5 Qd6 b6 Qf6 b5 Qd8 Nb4 axb4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 e4 Kd4 g6 h5 d3 c5 b7 f5 g7 b3 d6 h4 d7 c4 b6 b2 e5 b1Q e6 c3 g5 h3 e7 c2 e8B h2 g6 Rh7 Ba3 c1B Qb3 Bd6 Bh3 Qc7 d8Q Ra7 Bc6 Nf6 g8B Ne8 g7 Be3 Qe7 Be6 Be4 Qc3 Bg2 Bf7 Nh3 Bg6 Rf1 h1N Nf2 Ng3 Be6 Qbe1 B4d5 Ne4 g8R Nc5 Nd1 Nca6 Qc7 Rd7 Qc5+ Ke5 Ra2 Bh7 Ra1 Nac7 Rg3 Nca6 Qa5 Kd4 Ra2 Nc6 b8R Rab7 Ra8 Ncb8 Qab5 Qa5 Qc6 Qb5 Bh1 Qc3 Qc7 Nc5 Ra5 Nca6 Qc5+ Ke5 Kg2 f3+ Kh3 f2 Kh4 f4 Bh3 f3 Ra1 Ra7 b7 Kf4 Re1 f1Q Be4 f2 Beg2 Qe2 Rf1 Qee1 Kh5 Nc6 b8B Rab7 Bc7 Ncb8 Bd8 Qa4 Bf6 Qc6 Bh8 Qb5 Rg1 f1R Kh4 Rf2 Rf1 Rdc7 Bb4 Rd7 R1a4 Rf3 Ba3+ Bd4 Nb2 Ke3 Nd1+ Ke2 Kg5 Rf4 Rff3 Be3 Bf1+
n2K1RrR/2r4q/3b1Qr1/6R1/1R1BQ1Bn/3Q1Pkb/3brq2/NQ1Q3r b - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 b5 axb5 g5 Ra6 f4 Ra1 f3 exf3 Bh3 Bc4 Be6 Bf1 Bc8 Nc3 h5 Ke2 g4 Nb1 g3 Kd3 gxf2 g4 Na6 Ke2 Nb8 g5 Qd7 Nc3 Qd6 Ne4 Qd8 Nf6+ Kf7 Ng4 hxg4 Qa4 Ke8 Qc2 Bg7 Qd1 Bf8 Ke3 Kf7 Kf4 Kg6 Ke5 Kh5 b4 Kh4 d4 c5 g6 a5 b6 a4 d6 a3 b5 a2 d5 g3 g7 c4 d7 g2 Ke6 c3 b7 c2 d6 Nc6 b8R Qa5 b6 Nb4 b7 Na6 Bb2 c1R Bd4 Rb1 Ne2 g1R Nc1 Ra7 Nb3 Qh5 Bh3 f1Q Bg4 Rb2 Rb1 Qh7 Na1 Nh6 g8R Nf5 Rg5 Rg8 h3 Rd2 Rb4 Kg3 h4 Qf2 h5 Nh4 h6 Rg2 Qc2 Re2+ Qe4 Rg1 Ra8 Rg2 b8Q Rc7 Qb5 Rg1 Qd3 Rg2 Qb1 Rg1 Kd5 e5 d8Q Bf5 d7 Bd6 Qf6 Rg2 Qed3 e4 Rf8 e3 d8Q Bc8 Qd7 Rg6 Ke6 Rg1 Nb3 a1R Rh2 Rg8 Qfg6 Rh1 Qge4 Ra5 Na1 Rf5 Rg7 Rg5 Kf7 Rg6 Ke8 Nf5 Qa4 Nh4 Qad1 Be6 Kd8 Bc8 Bh5 Bh3 Bg4 Rc1 Rgb7 Nc7 R7b5 Na8 Rg5 Rc7 Qc6 Qg7 h7 Qh6 h8Q Qh7 Qa3 Ra2 Qf6 e2 Qb7 e1B Qad3 Re2 Qbe4 Bd2 Rh5 Bg2 Rb2 Qg7 Qee6 Nf5 Qee4 Bf1 R2h4 Bh3 Rg5 Qf7 Rhh5 Nh4 Rh8 Qh7 Rb4
4B1qq/r2n1BQ1/1P4K1/1R1R2br/1B1qQ3/1nn1RbR1/3B1n1N/5knR b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 Kf2 Kf7 b4 a5 h4 c5 d4 e5 g6+ Kf6 b6 c4 b5 f3 Ke3 c3 Ke4 f2 h5 a4 h6 g3 b7 a3 g7 c2 h7 g2 d6 a2 d7 Ra4 Qe2 Qe8 d8R Ra7 d5 Ne7 g8B Bh6 d6 Nd5 d7 Bg5 Bd2 c1N Bf7 Qg8 Nh3 g1N Re8 Nb3 d8R Nd7 b8R Bb7 b6 Bc6 Rb1 a1Q Qe3 Bb7 Bb5 f1Q Nf2 Qd1 Rbc8 Qh5 Rc3 Qh2 Qe2 Ba8 Rg3 Nc3+ Kd3 Bf3 Qe4 Nb8 Rd5 Nd7 Qf4 e4+ Ke3 Kg7 f6+ Kh6 Re7 Nc1 Kd4 e3 Qe4 e2 Bc6 e1N Rbb5 Ned3 Ree5 Qg6 Ng4+ Kh5 Re7 Kh4 Re8 Rg8 h8Q+ Qh7 Re6 Nf2 Qg7 Rh8 Re7 Qg8 Re8 Nf8 Ke5 Nb3 Kf5 Nd7 Kg6 Rh5 Re6 Ndc5 Bce8 Nd7 Qf4 Qa4 Re3 Qd4 Qe4 Qh3 Be6 Qh2 f7 Qh3 f8B Qh2 Rg2 Kh3 Bb4 Nfd1 Rge2 Nf2 B6f7 Kg2 Rd3 Kf1 Rde3 Nfd1 Rg2 Qhe5 Rg3 Nf2 Nf6 Qe7 Ng4 Qef8 Ba5 Qh8 Bb4 Qfg8 Nh2+
2b2b1B/3kPN2/4nR2/3b2N1/bB1rq1B1/KQN2q1Q/N2b1qNB/2n3r1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 a5 b4 h5 gxh5 Rh6 b6 Rd6 b5 Rh6 Ra4 Rh8 Rb4 axb4 e4 c5 d4 g5 Kd2 f5 Kc2 b3+ Kb2 c4 h4 g4 e5 g3 h6 g2 d6 f3 e6 f2 h5 f4 b7 f3 h7 Ra7 h6 Ra1 d5 Ra4 e7 Kd7 b6 Rb4 Nh3 g1Q Nc3 Qg4 Nf4 Nc6 b8B Na5 b7 Nf6 Ng2 Rg8 h8B Nh5 h7 Qb6 Bd2 Qe4 Ka3 b2 Qb3 b1B Be2 Bc2 Rf1 Ng7 Bc7 Ne6 b8N+ Ke8 Nc6 Kd7 Qb1 Ba4 Qb3 Nb7 Bb8 Nbc5 Be1 Nd3 Bc7 Rb5 Nb4 Nc1 Nba2 Rc5 Nd1 Rg3 Bb4 c3 Bb8 c2 Ndc3 Rc4 Bd1 Ke8 Be2 Rd4 d7+ Kf7 d8N+ Ke8 d6 Kd7 Nf7 Qc5 Rh1 f1Q Rh6 f2 Bg4 Qd1 Ng5 f1B Rf6 Bc4 Bc7 Qdf3 Bb8 Bd5 Bc7 Kc6 d7 Qa7 d8N+ Kd7 Ndf7 Qb6 Nf4 Rg1 Ng2 Qb5 Bg7 Qbf1 h8Q Q1f2 Qh2 Nd3 Qh3 c1B+ Qb2 Bf4 Bh8 Nc1 Qb3 Bd2 Bh2
2N3Q1/1nQb2r1/2rbN2r/2RRqQn1/nb5k/2P1Nq2/1BK5/Q1bN3N b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kd2 d5 b4 a5 h4 e5 g7 Kf7 h5 a4 h6 d3 b6 a3 b7 a2 g6+ Kf6 b5 Kg5 f6 d4 h7 e4 f7 g3 b6 g2 Rh6 Qe8 Qf1 Ra6 Nc3 Nc6 b8Q Bd6 f8N Qe5 b7 Bd7 Nd1 Nd8 Qc7 Nf6 g8N Rc6 b8Q Nb7 Ne2 g1R Bb2 e3+ Kc1 Ne4 g7 Kg4 Ng3 e2 Rh5 e1B Ne7 Beb4 g8N Ng5 Nd5 Rg2 c3 d2+ Kc2 Rg1 Rb1 a1B Qa8 Rg2 Nh1 d3+ Kb3 Rg1 Ne6 Rg2 Nge7 Rg1 Bc1 Bb2 Nc8 Rg2 Qa1 B2a3 Nb2 d1N Qf8 d2 Kc2 Nf3 Rg5+ Kh4 Ne3 Rg1 Rf5 Rg7 Qf7 Ng5 Qg6 Nf2 Nbd1 Nfe4 Bb2 Nec5 Qf7 Na4 Qg6 Rhg8 h8Q+ Rh7 Rc1 Rg7 Qg8 Rh6 Q6f7 Qf4 Rc5 Qd4 Qf5 Qe5 Ndf2 d1Q+ Kb1 Qh5 Kc2 Qf3 Rd1 Qg2 Rdd5 Qf3 Qf1 Be7 Nfd1 Bd6 Ba1 Bc1 Bb2 Kh5 Qa6 Kh4 Qaa5 Nb6 Qa2 Na4 Qa1
1RB4k/1bb1rn2/1Bq1P3/q2N1N2/1r1N4/1B3K1Q/1Q1q1n1q/Nb1N2Bn b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Ne7 b5 Qd8 Ra4 Ng8 Rb4 axb4 Kf2 h5 e4 f5 g4 Kf7 d4 Kg7 e5 c5 d6 c4 g6 c3 d5 h4 g5 h3 b7 b3 d7 c2 b6 f3 d6 f4 Ne2 h2 Qd3 b2 Nec3 Ra2 Na3 b1B Nd1 Ne7 Be3 c1Q+ Nc2 Nd5 Bh3 Na6 b8Q Ndb4 b7 Ra3 Na1 Qa5 d8N Ra4 d7 Qc6 Nf7 Nc7 d8B Nb5 Nd6 Rh7 Nf5+ Kh8 Bdb6 Bd6 Qc3 Re7 g7+ Kg8 Bed4 Bc7 Rf1 Kh7 g8N Nd6 g6+ Kh8 Nf6 Nf7 Nd5 h1Q Rg1 Qh2+ Rg2 Na2 Bdc5 Nc1 Be3 Rb4 g7+ Kh7 g8B+ Kh8 Kf1 Nd3 Bg1 f2 Ke2 f1N Kf3 Ng3 Rb2 Nh1 Rb3 Be6 Qb2 Qd2 Qc8 Ndf2 b8N Bd7 Bg4 Be8 Qe6 Bd7 Bh3 Bc8 Bg4 Bb7 Qd7 Qh6 Nc6 Qh2 Ncd4 Nd3 Ke4 f3 Qe6 f2 Kf3 f1Q+ Bf2 Qfe1 Bg1 Qh7 Qh6 Ndf2 Qh3 Nd6 Be6 Nf7 Bc8 Qf1 e6 Qc4 Bh5 Nd6 Be8 Nf7 Ba4 Qc6 Ra3 Qac5 Bb3 Q5b5 Ra8 Qa5 Rb8 Qhh6 Qf1 Qh2 Qh3+
B2KBn2/2Pn4/6Q1/3B1QQ1/qnnQ3q/RB2bqb1/b1QN1r2/3kr2R b - - 0 1 illegal: No possible last move, all moves rejected
7r/Pn2nN1N/r3N1n1/2B2N1B/k2q2r1/Q4B2/Q2q1r1R/qB1bB1bK b - - 0 1 illegal: No possible last move, all moves rejected
1QKN1b1N/5QbN/1rk3NP/2N2r2/1b1nrr2/1R3qBQ/2Rr4/1Q3n1r b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 Kf2 Kd7 h4 c5 e4 a5 b4 g5 d4 c4 e5 a4 d6 a3 f6 a2 d5 c3 f7 c2 b6 Be7 f8N+ Kc8 d7+ Kb7 b5 Nf6 d6 Nc6 h5 Qc8 d8N+ Kb8 e6 Nd4 b7 Ra4 d7 Kc7 h6 Bb4 e7 Qa8 e8Q Nd5 Nh3 Ne3 Nd2 Nf1 Rb1 a1B b6+ Kd6 Nf7+ Kc6 Bb2 c1R b8Q Rc2 b7 Rh7 Rh2 g3+ Ke1 g2 Kf2 g1R Nh8 g4 Ng5 Re7 Nfg6 Re4 Nh7 Ra6 Qf7 Rh1 Rg2 Rb6 Qc8+ Kb5 b8Q Qd5 Qa6+ Kc6 Qd3 Bf8 Ba3 Bc3 Rh2 Bcb4 Rb3 Ra2 Q1b1 Qf5 Qe3 g3+ Ke1 g2 Kf2 Bg7 Qed3 Bbf8 Be7 Qh3 Bh4 Rb2 Bg3 Qh5 Qe3 g1B+ Ke1 Qf5 Kd1 f2 d8N+ Kc5 Qf3 Qd5 Qg2 f3 Qh3 Rc2 Re3 Qh5 Nb3+ Kb5 Rg2 Rd2+ Kc1 Bb4 Nc5 Qd5 Rb3 Bh2 Bh4 Bd6 Bg3 Bdf8 Rh2 Rd1+ Kb2 Rd2+ Qc2 Ne3 Ka2 f1R Re2 f2 Kb2 Rd3 Qb1 Qh5 Rc2 Rd2 Nde6 Kc6 Ka2 Ba5 Ka3 Bb4+ Ka4 Qf3 Qfa7 Rf4 Qe7 Re1 Qf7 Ba3 Ka5 Nf1 Rc4 Ree4 Rc2 Rb5+ Ka6 Bb4 Ka7 Rb6 Qd8 Ra6+ Kb8 Rb6+ Kc8 Ne3 Qde7 f1R Qa7 Rff2 Qb8 Nf1 Qh5 Rfh2 Qg4 Rh5 Qh3 Rhf5 Nd8+
R1R3n1/n1Q2RK1/1Q1Pbn1N/r6B/1br1Q1Rb/nq6/6b1/NRk1b1Q1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 h6 g4 Nf6 b3 Ng8 Bb2 Na6 Bf6 gxf4 g5 Nb8 g6 Bb7 Bh4 Bc8 Bg5 hxg5 Ke2 Kd7 Kd3 Kd6 Kd4 a5 h4 g4 g7 e6 h5 c6 b4 a4 b6 f3 h6 a3 b5 g3 b7 g2 f6 a2 h7 f2 f7 Ra6 b6 Ra5 Na3 Nd7 b8R Ndf6 Be2 f1B Nf3 g1N b7 Bg2 Nh2 Bd7 Rb1 a1N Ra8 Qb8 Qc2 Be7 f8R e5+ Kc4 e4 Kd4 e3 Bh5 e2 Rf7 e1B Qe4 Bd8 Rb2 Be6 Nc2 Be7 Ng4 c5+ Kd3 c4+ Kd4 c3 Rh4 Bd8 Nh6 Be7 Rg4 Ne2+ Kd3 Kc5 d6 Bf8 d7 Nd4 d8Q Nc6 Qc7 Bh4 Ke3 Be1 d4+ Kc4 Kf4 Bb4 Qf3 Bh4 d5 Be1 d6 Bh4 Qd8 Na7 Qb6 Be1 Qfc6+ Kd3 Qe4+ Kd2 Qc7 Kc1 Qb6 Ra3 Kg5 Ra5+ Kg6 Bh4 Nd4 c2 Nb3+ Kd1 Qc7 c1B Qb6 Nc2 Na1 Bcd2 Qc7 Qd8 b8Q Bde1 Qbb6 Na3 Rc8 Qd7 Ra8 Qa4 Rc8 Qb3 Ra8 Nd5 Rc8 Ngf6 g8Q Ne7+ Kg7 Qc4 Qg1 Kc1 Qgd8 Re8 h8R Neg8 Ra8 Qc3 Qdb8 Rc8 Qcb6 Rc4 Q8c7 Qf3 Rc8 Qb3 Ra8 Ne7 Rhc8 Neg8 Rb1+
1QK2Bn1/3NbB1n/1R1b1Q2/1RR2rk1/b2Rr1P1/3r2B1/1Bn2nn1/B4n2 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 h4 Qf6 Na3 Qc3 Nc4 Qb4 Ne5 Qd4 Nef3 gxf3 g3 Qg7 g4 Qg5 hxg5 Bf5 Rh6 Be6 Rh1 Bc8 Kf2 Ke7 b4 h5 d4 a5 e4 c5 d6+ Ke6 g6 Kf6 d7 a4 d8B+ Ne7 b6 c4 b5 h4 b7 c3 g7 c2 g8Q h3 b6 a3 d5 h2 d6 a2 d7 Rh7 e5+ Ke6 Qd4 Ra4 Rb1 a1N Rb5 Rh3 Bb2 c1B Bd3 Rb4 Bg6 Nc2 Qh8 Ng8 Be7 f5 d8B Nd7 b8R Rc4 b7 Ndf6 Ba5 Bd2 Bac3 Nh7 Bc5 Bd6 Bf7+ Ke7 e6 Bd7 Rd8 Be8 b8B Bc1 Ba1 Ba3 Bcb2 Bd7 Rb6 Ba4 Qdg7 Re4 Bb4 Bc5+ Rd4 Bd6 Qe5 Rg3 Qb5 Rh3 Qg7 Rg3 Qf8+ Kf6 e7 Rh3 e8R Kg5 Rc8 Rg3 Rc5 Rh3 Kf1 f2 Kg2 f1N Qbe8 Rd3 Nf3+ Kf6 Kh3 Nfe3 Rb1 h1N Kh4 Nf2 Ne5 f3 Bc7 f4 Qb8 Ng2+ Kh5 Nh1 Rbb5 f2 Qh6+ Ke7 Kg6 f1R Kf5 f3 Nd7 f2 Qf4 Rg1 Rb6 f1N Qf3 Nf2 Rbb5 Bf4 Be5 Bg5 Bg3 Rh1 Qff4 Rh5 Qf3 Rf4+ Ke5 Re4+ Kd5 Bh4+ Kc6 Rf5 Kb7 Bf6 Kc8 Bh4 Nf8 Kf6 Nd7+ Kg5 Re5 Ngf6 Bf8 Ng8 Rb6 Be7 Reb5 Bd6 Rc1 Na3 Rcc5 Nc2 Bb3 Kg6 Qf4 Be7 Qe5 Kg5 Bf7 Ree3 Qh8 Re4 Qf6+
6bK/rB2Q1Qp/3b1q2/nq2b2k/N2N1r2/2r1q2N/n1NB1P2/R1B1B1B1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Bh6 Ra2 Qd6 Rb2 Qd7 axb5 Bg7 b6 Qd8 b5 Bf8 Rb4 axb4 Ke2 Kf7 Ke3 e5 Ke4 c5 d4 b3 g4 b2 g5 c4 d6 h3 d7 c3 g6+ Kg7 b7 c2 b6 h2 d5 Qf6 d8N Ra2 d6 Ra6 d7 Ra1 Qe1 Ra6 Nc3 b1Q Na4 Nc6 b8N Nh6 b7 Ng4 Bg2 Ne3 Ne6+ Kh6 d8B Na7 g7 Kh5 g8Q Nd5 Nd4 Nb4 Nh3 Be6 Qg7 Bg8 Ba5 Bd6 Nbc6 Na2 b8B Qb5 Nb4 Nc6 Bd2 c1Q Nbc2 Ra7 Bac3 Qh6 f6 Na5 f7 Qf6 f8B Qa3 Rg1 h1R Qe3 Qab3 Ra1 Rc1 Be1 Qbe6 Bcd2 Qee7 Na3 Rc3 Nac2 Qh4+ Kf5 e4+ Qe5 Qee8 Bh6 Qhd8 Qg3 e3 Bb7 e2 Qg7 Qdb6 Qc5 Qe3 Bc1 Be5 Qce7 Bd6+ Kf6 Q6a6 Bed2 e1B Bg5 Rc8 Bb4 Bc3 Bh6 Bb2 Be1 Rc3 Bf4 Bf7 Bh2 Rf8 Bg1 Qab6 Qg2 Be6+ Kg7 Rf4 Kh8 Bg8 Qg3 Qd8 Qgg7 Qf8 Bc7 Qf6 Bed2 Be5 Be1 Ba3 Bb6 Bad6 Bc5 Ra3 Bcb4 Rb3 Bbd2 Ra3 Bc8 Rc3 Bb7
2Q1bk2/QQ4B1/N1BqQK2/3qr3/B2bq1B1/np1q4/RPrqB3/4nR2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 hxg5 a5 Qa4+ Nc6 Qb4 Nb8 a4 axb4 Na3 bxa3 Ke2 h5 Kd3 c5 Ke4 e5 g4 b5 f4 c4 d4 h4 d6 b4 f6 c3 g6 h3 f5 a2 d5 h2 f7+ Kd7 g5 c2 a5 Nc6 f6 Qe7 Kf5 e4 a6 e3 g7 e2 g6 e1Q a7 Rh5+ Bg5 c1Q Nf3 Qg3 Nd4 Rh7 Nb3 Rh3 Nc5+ Kd8+ d7 Qed6 Be2 Qd2 Na6 Qc1 Rf1 Rb8 a8B Ne5 Bc6 h1Q Be3 Rh4 Bd4 Nc4 Ba4 Qc5 Ke6 Nh6 g8B b3 g7 Qd1 Bh7 Qcc7 g8B Rb5 Bf5 Qgd3 Bfg4 Q1d2 Bh7 Bg7 Be4 Rh2 Bg2 Nd6 Bc3 Nhf5 f8Q+ Ne8 f7 Nh4 Qa3 Nd6 Qc5 Nc4 Qa7 Bd4 Bg2f3 Ng2 Qb7 Bc5 Bh8 Ne1 Kf6 Na3 Be4 Rg2 Be4f3 Qh5 f8Q+ Qe8 Qh6 Qee4 Qg6 Qg3 Qf7 Qd6+ Qe6 Bd4+ Kf7 Qc1 Qa8 Qg3 Bd1 Qee2 Qa7 Nac2 Be4 Qgf3+ Kg6 Bb7 Qf5 Ke7 Qe6+ Kf8 d6 Bc6 d8Q+ Be8+ Kh7 Qc3 d7 Re5 Qdc7 Qcd3 d8Q Qg5 Qdc8 Qd8 Bb5 Qd6 Qc7b7 Qf5+ Kh6 Qef2 Bec6 Qfe4 Bf5 Rh2+ Kg5 Qff4+ Kf6 Qed5 Qh7 Qfe4 Bfg4 Rd2 Qhb7 Rh2 Rc1 a1Q Ba4 Na3 Rb1 Rc2 Bde2 Nf3 Rbe1 Qc1 Rd1 Qce3 Ra1 Ne1 Ra2 Qed2 Bg7#
b1n4k/B2R1qQ1/7r/r1rp1r1b/3qr1B1/R1BQB3/1KP3nQ/QNQ5 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 e6 e4 Ke7 f4 Ke8 Nc3 Be7 Nd5 Bf6 g5 cxd4 Ne3 Be5 Ng4 f5 exf5 Bf6 gxf6 hxg4 Kd2 Kf7 h4 g5 b4 d5 h5 a5 b6 d3 Kc3 d2 b5 g3 b7 g2 h6 g4 b6 e5 h7 e4 Ba3 a4 Kb2 g3 Qe1 d1B Bc5 e3 Ra3 e2 Be3 Na6 b8B Qc7 b7 Nb4 Bba7 Ne7 b8Q Bb7 Nf3 g1Q Bh3 g2 Bg4 Nc8 Nd2 Rf8 h8B Kg8 Bg7 Qf7 Nb1 Qf2 Bh8 g1R Rh7 Rh1 Qc3 e1R Qd3 Rh6 Qd6 Qe6 Rd7 Qf7 Qc7 Rb8 Qcc3 Ba8 Qcd2 Re2 Qc1 Rb5 Bg7 Qg6 f7+ Kh7 f6 Rc5 f5 Re1 Bf4 Re4 Bd2 Qd4+ Bc3 Rfe8 f8Q R8e5 Qd6 Qf7 Bf8 Kh8 Be7 Re6 Qh2 R6e5 Bd8 Be2 Bdb6 Bf3 Bh3 Bh5 Bg4 Qe8 f7 Qg8 f6 Rf5 Qdd2 Qh7 f8Q+ Qg8 f7 Nd3+ Ka1 Nf4 Qd3 Ng2 Qe7 Qh7 f8Q+ Qg8 Qff6+ Qg7 Rb3 a3 Qfe5 a2 Kb2 a1R Qeg5 Raa5 Ra3 Qf2 Qed4 Qh4 Qg6 Qe7 Qdg1 Qf7 Qgf1 Rc7 Be3 Rcc5 Nd2 Ref4 Qa1 Rfa4 Nb1 Re4 Qc1 Qd4 Qg7+
k1K4Q/2nQ4/1BQ1R2R/N2b1bn1/qn4Q1/q1P2r1r/3R1pnR/1N1qR3 b - - 0 1 legal: proof: f4 b5 d4 e5 fxe5 c5 a4 cxd4 axb5 Qb6 g3 Qd8 Kd2 h5 Nf3 f5 Ke1 f4 Bg2 Be7 Bh3 Bg5 Ng1 f3 Bg4 Bf4 gxf4 hxg4 Kd2 g5 Kd3 d5 h4 Kd7 e4 Kc7 b4 Kb7 f5 a5 c3 g3 e6 g2 e5 a4 h5 f2 e7 g4 e8R g3 e6 a3 b6 a2 f6 Nh6 b5 Bd7 e7 Rh7 f7 Nf5 f8R Rf7 h6 Nh4 h7 Rf3+ Be3 Na6 h8R Nc7 Ne2 g1Q Nc1 g2 Rh2 Qc8 Qd2 Qd1 Nb3 g1N Rh6 Ng2 Na5+ Kb8 b7 Qa4 Rd8 Nh3 e8Q Ng5 Rff6 Bf5+ Qe4 Ra7 Re6 Ra6 Rdd6 Qf8 Qe2 Rh3 Qg4 Ra8 Rd7 Qfa3 Rd8+ Ka7 Rdd6 Rf8 b6+ Ka6 b8Q Rf6 Kd2 d3 Qh8 d4 b7+ Ka7 Qh7 Rf8 Qd7 Kb8 Rb6 Rf6 Qec6 Rf7 Rb2 Rf8 Rc2 Rf6 Kd1 d2 Ke2 d1B+ Kd2 d3 Bb6 Bf3 Rb2 Ne1 Ke3 d2 Rc2 d1Q Rd2 B3e4+ Kf4 Ng2+ Ke5 Bd5 Qd4 Qac1 Kd6 Qca3+ Qb4 Bd3 Ke7 Rff3 Kd8 Bf5 Qg4 Q3b4 Na3 Qc5 Rb1 a1N Rc1 Nc2 Nb1 Qg1 Rce1 Qca3 R1e2 Qd1 Re1 Nb5 Bc7+ Ka7 Kc8 Nb4 Bb6+ Ka6 b8Q Nc7 Kd8 Nb5 Qe5 Nc7 Qh8 Qdc2 Nb3 Qd1 Qcd6 Kb7 Na5+ Ka8 Kc8 Rhg3 Qc5 Rh3 Qcc6+
3NQqn1/K1B4r/BQQ1n3/1N6/2N1pPnq/2R1bN2/4bqrN/3Qq1k1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 g5 e3 f4 exf4 Be6 Qf3 Bg4 Qd1 Bc8 b4 h5 Ra3 g4 Rh3 Bd7 f3 Bf5 Rh4 gxf3 g4 Be6 g5 Bc8 Rg4 hxg4 Kf2 Kf7 Ke3 Kg6 Kd4 Kh5 Kc5 Kh4 d4 e5+ d6 a5 g6 c6 d5 g3 b6 f2 g7 a4 b7 e4 b5 g2 b6 a3 Bb2 a2 Nd2 a1Q Ngf3+ Kh3 Ba6 g1Q Nc4 Kg2 h4 Nh6 g8N Qf6 h5 Qe5 Rh3 Qf5 Be5 Rh7 Nf6 Ng8 h6 Be6 Qc2 Qae1 Ng4 Qg5 Qa4 Qh4 Ngh2 Bg4 Qc2 Bg7 d7 Bh8 d8N Nd7+ Kd6 c5 Kc7 Bh5 d6 Nf8+ d7 Ne6+ Kc6 Qb4 Bc7 Bd4 b8Q Be3 Kb7 Qbe1 Qa4 f1N Qc6 Qgf2 Nf7 Qb4 d8N Bg4 Nfd6 Bh5 Ng1 Be2 Nb5 Qa3 Ngf3 Kh1 Na5 c4 Qc8 c3 Q8d7 c2 Nc4 c1Q Qd1 Rb8+ Ka7 Qf8 Rg3 Qd2 Rh3 Qde1 Rg3 Rf7 h7 Rg7 h8Q Rh7 Qhd4 Rc8 b7 Rb8 Ng4 Nh2 Qdb6 Rc8 Rh3 Kg2 b8Q Kf1 Nge5 Ng4 Nh2+ Kg1 Rf3 Bc5 Rc3 Be3 Ndf7 Re8 Nd8 Ree7 Qba8 Reg7 Qe8 N4f6 Qad5 Rg2 Qdc6 Ng4 Nef3+
5k2/Bn1q2Nr/bbRr2N1/4B1K1/qQ1pNP2/N3nr2/1rQ5/QQ2bN2 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qd8 b4 h5 f4 g4 Ra3 Bh6 Rf3 Bf8 g3 Bh6 Bh3 gxf3 g4 Bg7 g5 Bf8 Bg4 hxg4 Kf2 e5 Kg3 a5 c4 d5 h4 e4 f6 e3 c6 e2 c7 e1R c5 a4 h5 a3 Kh4 g3 b6 a2 c6 a1R f7+ Ke7 h6 f2 b5 f1Q g6 g2 g7 Qd3 b7 Qf3 h7 R8a7 b6 Bf5 c8Q R1a6 c7 Bg6 Be3 Nd7 b8Q Nc5 b7 Rf6 Kg5 Re2 Na3 Ra4 Qb1 Rc2 Rh6 Rb2 Ne2 g1B Ng3 Qd1 Nf1 Bd3 Qa7 Bc4 b8B Rd6 Qcb7 Ba6 c8Q+ Qd7 Qb4 Nb7 Qcc2 Nf6 Qad4 Ng4 g8N+ Kd8 Bf2 Ne3 Nf6 Ke7 Ne4 Bg7 Qa7 Bc3 f8N Be1 Ne6 Qd4 Ng7 Kf8 Rg6 Qc4 Qd4 Qcc6 Bc7 Ra5 Qdd1 Qa4 Qa1 Rc5 Qdb1 Rc3 Re6 Nc4 Bfb6 Rf3 Ba7 Bb6 Bcb8 d4 Bc7 Rg8 h8N Ne3 Ng6+ Kf7 Qbc5 Rh8 Qb4 Rh7 Bcb8 Rd5+ Be5 Rd6 Ne7 Kf8 Rh6 Rd5 Rc6 Rd6 Ng6+
k1Qb2b1/r3n2R/qBr2NQ1/RnnR2p1/4nN2/7K/q3NP2/2b1NRN1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 g4 Bh6 h4 gxh4 g5 Kf8 g6 Ke8 Be2 Bf8 g7 Bd7 Bf3 Bc8 Bh5+ Kd7 Bg6 hxg6 Ra4 Ke8 Ra3 Rh6 Ra1 Rh8 Kf1 Kd7 Kg2 e5 b4 c5 d4 Kc7 d6+ Kb7 d7 a5 f6 e4 d5 e3 b6 c4 b5 g5 f7 e2 d6 e1N+ Kh3 a4 Qh5 a3 Qg6 a2 Be3 c3 Nd2 c2 Ndf3 Be7 f8R c1B Rf7 Nc2 Ne1 Na6 Bd4 Kb8 b7 Ra7 Bb6 Na3 Rf5 Qf8 d8R Qf7 d7 Rh6 Rb1 a1Q Re5 Nf6 g8N Ne4 Nf6 Qfa2 Rd5 Nac5 Rg8 Ne6 d8N N6c5+ Ne6 Bd8 Rg7 Bd7 Rh7 Be8 Rb4 Bf7 Nf4 Bg8 Rbd4 Bb2 Ra4 Bc1 N6h5 Qf6 Ra5 Qc6 Nfe2 Qc8+ Kh2 h3 Nhf4 Qc6 Ngf3 Qd6 Rf1 Qe6 Nfg1 Qf6 Kh1 h2 Kg2 h1N Rh8 Rh3 Rh7 Rc3 Kh2 Nhg3 Kh3 Ra6 Bc7+ Ka7 b8N Ka8 b6 Ra7 Nd7 Qd6 Nf6 Nb5 Bb8 Qc6 Be5 Rc4 Bd4 Nf5 Be3 Ne7 b7+ Kb8 Bd4 Qa6 Be3 Kc7 b8Q+ Kc6 Qe5 Kb7 Qc3 Ka8 Qc2 Ne6 Qc3 Rc6 Bb6 N6c5 Qc2 Ned6 Qcf5 Nde4 Qc8+
knN3K1/N2RB1bR/2N2p1q/Rr3N1n/n6n/Qr2P1br/1Q3R2/3N3q b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 g5 f6 g6 Be6 Qb3 Bf7 Qc2 Kd7 Qd1 Ke8 Bh3 h5 Bg4 hxg4 gxf7+ Kd7 Kf2 Kc8 b4 Kb7 h4 a5 d4 g5 d6 c5 h5 f3 Kg3 a4 h6 c4 d5 a3 b6 c3 d7 f2 d6 f1R e3 a2 h7 c2 b5 Qe7 d8N+ Kc8 b7+ Kd7 b6 Bh6 f8Q Ra3 Qd2 Bg7 Nc3 Nh6 Nge2 Rf5 Rf1 Rb5 Nd4 Rab3 Ba3 c1N Nf7 Nd3 Qb2 Nf4 Nf5 Kc6 d7 Qd8 Be7 Nh5+ Kf2 g3+ Kf3 g2 Ke4 g1B Rf2 g4 N7d6 g3 Nd1 g2 Nc8 Qc7 d8R Bh2 Rd7 g1N Kd4 Ne2+ Kc4 Na6 b8N+ Kb7+ Nc6 Nc3 Kd4 Bd6 N6a7 Na4 Ke4 Kb8 b7 Qc6+ Kd4 Qh1 Kc4 Bg3 Kd4 Rg8 h8R Qh2 Rh7 Rh8 Rc1 a1Q Rc5 Qh3 Kd5 Qh4 Ke6 Qg5 Nh4 Nf5 Kf7 Qh6 Rcd5 Qb1 Re5 Qe4 Rc5 Qh1 Re5 Nd4 Nf5 Nf3 Rc5 Nh4 Re5 Rb6 Ra5 R6b5 Rd8 Kc7 b8N Kb7 Nbc6 Ka8 Rd7 Nb8 Bd8 Rg8 Qc5 Re8 Qca3 Re4 Be7 Rf4 Re2 Rf2 Kg8 Rh2 Red2 Rh3 Rf2
7B/b1b3Nr/2np3Q/qBR1PQ1N/2BqN2n/B7/K4B1b/n2kb1Nr b - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 fxe5 h5 d4 cxd4 g4 f4 Ra3 Bb7 Rg3 Be4 Rg2 Bf5 gxf5 Ke7 Rg5 Ke8 Rg4 hxg4 Kd2 Ke7 e4 a5 c4 g5 Kc2 d3+ Kb3 a4+ Ka2 f3 h4 d2 e6 Kf6 b6 Ke5 b5 Kf4 e5 Ke3 b7 g3 c5 f2 h5 g4 e7 a3 e8B g2 h6 g3 f6 Qa5 c6 Bd6 f7 Bc7 f8N d6 h7 Ra7 b6 Ne7 Qh5 Ng6 Nc3 Nh4 Bc4 f1N Qh6+ Kf2 Bd7 Ke1 Ne6 d1Q Ng7 Nd2 Ne4 Nb3 Rh2 Qd4 Rh3 Rg8 h8B Na1 Rh1 Kd1 Rh2 Bd8 c7 Nc6 c8Q Bc7 b8B Rf8 b7 Rf1 Be8 Re1 Qf5 Rf1 Nf3 g1B Rc2 Bh2 Ng1 g2 Rc3 Ne7 Beb5 Nc6 Bd3 Re1 Rc5 Rf1 Bdc4 Re1 Nf3 g1B Bb2 Bf2 Bc1 Rh1 Ng1 Be1 Bb2 Ra8 Ba7 Re8 b8N Re7 Nd7 Rf7 Ne6 Rh7 Ndf6 Nc2 Kb3 a2 Nh5 a1B Ba3 Bb2 Ka2 Na1 Neg7 Bc1 Nhg3 Bg5 N3h5 Bgd8 Qfg5 Bb8 Qf5 Bdc7 Bb6 Ba7 Rd5 Qd3 Bf2 Qd4 Rc5
b1Q1b2k/nrr2RBB/QP6/4Kn1R/R1bN4/4b2p/Q1n3qQ/2R1q1R1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Ba6 Na3 Nc6 Nc2 Bb7 axb5 Nb8 b6 Ba6 b5 Bc8 Nb4 axb4 Ke2 Kf7 Ke3 Kg7 Kf4 h5 g4 c5 d4 b3 d6 b2 f6+ Kh7 g5 b1B b7 e6 f7 h3 b6 h2 d7 h4 d5 h3 d6 c4 g6+ Kg7 Qd3 c3 Ra4 c2 Ke5 Rh4 f4 Qg5+ f5 Ra7 d8Q Bd7 Qc8 Rc4 Nf3 Qg2 f6+ Kh8 Bh6 c1Q Nd4 Rc7 Qa6 Ne7 Rg1 h1B Bd3 Be8 d7 Nf5 d8R Bc5 Rd5 Ba2 Bb1 Bc4 g7+ Kh7 f8R Qe1+ Ne2 Be3 Rf7 Kg8 Nd4 Kh7 Re7 Kg8 f7+ Kh7 f8R Nc6+ Kf6 e5 b8Q e4 Rff7 Rcb7 Qh2 Rc7 Rc5 Rab7 Ree5 Na7 Bc2 Bd2 Red5 e3 Ke5 e2 Bb1 Be3 Be4 Bcb5 Rc1 Bc4 Rda5 Qef2 Rd5 e1N Bd3 Nc2 Rc5 Qe1 Rb5 Kg6 g8Q+ Kh5 Bg7 Kg6 Qf8 Kh7 Qa3 Qg5 Rc5 Be4 Qa2 Qg2 Rc6 Kg8 Rh6 Bf3 Rh5 Bc6 Bh6 Bf3 Be4 Kh8 Bg7+ Kg8 Qb1 Ne7 Rh4 Rb8 Bf5 Ba8 Qa2 Rbb7 Bg6 Nf5 Rh6 Nd6 Rh5 Nf5 Bh6 Kh8 Bh7 Be6 Bf8 Bc4 Bg7+
3B1RN1/1b1NnQ1P/1n2qp1b/q3Q1N1/8/rR2R2n/b1kR2N1/4rnNK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 a6 b4 Kd7 b6 Rh6 b7 Rh8 b5 Nh6 b6 Ke7 Bh3 Ng8 Bf5 Ke8 Bd3 Qf6 Bc4 Qd8 Bb5+ axb5 Kf2 Kd7 Kg2 Kd6 d4 c5 h4 g5 e4 c4 h6 b4 e5+ Ke7 d6+ Ke6 d7 Kf5 e6 Ke4 h5 c3 h7 g4 e7 c2 e8N g3 d5 b3 h6 b2 d6 Qg5 d8N Nf6 d7 Ra3 Qh5 Kd3 Ra2 Be7 Rh3 f3+ Kh1 f2 Nc3 b1B Nce2 f1N Ne6 Qe3 d8R+ Nbd7 b8R Bf8 b7 Ng8 Nf6 Ne7 Ng5 Qe6 Ng8 Bg7 Rf8 Nb6 Be3 c1Q Nf4+ Kc3 Bf2 Qce1 Rd2 Ba2 Ng2 f6 Qf7 Q1e5 Be3 Qc7 Bf4 Qc5 Bc7 Qa5 Bd8 Kb3 Ra8 Kc3 b8N Bb7 Nd7 Kb3 Rb8 Kc3 Rd4 Kc2 Rd2+ Kb3 Re8 Bf3 Ne2 Qed5 Rb7 Nf5 Ne7 Rf8 h8Q Be4 Rc7 Nh4 Rc5 Ng6 Ng8 Qc4 Rce5 Bb7 Re4 Qcd5 Ne3 g2+ Kg1 Qc4 Qh7 Qcd5 Qe6 Rf7 Rf8 Re7 Qf7 Re5 Rg3 Ne7 Qf5 Qc4 h7 Qe6 Qf4 Bh6 Rh3 Rc5 Qe5 Rc1 Rg3 Re1 Rf3 Ng3+ Kh2 g1N Ng2+ Qc3 Rfd3 Nf1+ Kh1 Nh3 Rg3 Bc8 Ng1 Bb7 Rdd3 Kc2 Rd2+ Kc1 Rgd3 Qa5 Ree3 Kb1 Rb3+ Kc1 Rd5 Kc2 Rd2+
3k4/1rnb1Qrp/2Qb2QP/8/Qb3R2/4R1N1/1N1N1n1q/KNb1qQqB b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 g5 f4 e5 a4 Nc6 axb5 Nb8 d4 f5 dxe5 fxe4 f5 Bd6 Bd2 Bf8 Bf4 gxf4 Kd2 a5 Kc3 d5 Kb2 f3 h4 a4 c4 f2 g4 e3 c6 e2 g5 e1B g6 d4 h5 d3 e6 d2 h6 Qg5 c7 Bg7+ f6 Ra7 b6 Bd7 c8N Qf4 c5 Na6 c6 Qe3 c7 Qc5 b7 Qe7 b8N Bb5 Nb6 Bd3 c8Q+ Qd8 e7 Rc7 Nc4 Bf8 g7 Bf5 Nf3 Bd7 Bg2 f1Q Ra3 Rb7+ Ka1 Qg1 Nb2 Nc7 Re3 a3 Na6 a2 Qa4 d1Q Nc5 Bb4 Ne4 Qde1 Rh4 Bd6 Qca8 Qb8 Bh1 Bb4 Nfd2 Bd6 Nbc4 Bb4 Rg4 Bd6 Ng3 Bb4 Kb2 a1B+ Ka2 Bd6 Rf4 Bb2 Q8a7 Bc1 Nb2 Qh2 Q7a6 Qa7 Ka1 Bb4 Q6c6 Qb6 Ra3 Qbg1 Re3 Ba5 Rh4 Bc3 Qf3 Bb4 Qf1 Bb5 f7+ Kd7 Qe2 Nf6 g8Q Ng4 Qg6 Rg8 Qf1 Nf2 Rc4 Rg7 Rf4 Nd5 e8Q+ Kc7 Bg2 Bfd6 f8Q Bc6 Qee4 Bd7 Qff7 Kd8 Bh1 Nc7 Qec6
1q1B2bK/R2p3Q/2n3bn/N1NqQ3/2Q1b2P/rq6/2qrB1kB/3QQB2 b - - 0 1 illegal: No possible last move
1Q5b/1rnnK3/1pQ2QN1/3NN2k/2r1br1B/rqR2b2/1bQ1BP2/3QN3 b - - 0 1 legal: proof: b4 a5 g4 axb4 c4 f5 e4 d5 exf5 h5 cxd5 g6 a4 Qd7 Ra3 Qd8 Rg3 Kd7 fxg6 Ke8 g5 Qd7 Rg2 Qd8 Rg4 hxg4 Ke2 e5 Kd3 c5 Kc4 b6 h4 g3 d4 e4 d6 g2 Kd5 e3 a5 e2 d7+ Ke7 g7 Kf7 h5 e1R h6 Kg6 a6 c4 h7 c3 a7 b3 Rh3 c2 Nf3 g1R Nc3 b2 Be2 b1B Ke6 Ba3 d5 Bc5 d6 Nc6 Nd5 Nf6 g8N Be3 Nh6 Rg4 Nf7 Rf8 h8Q Ne8 Qc3 Rb8 a8Q Ne5 Qac6 Bb7 Ba3 c1B Qcc2+ Re4 Bb2 Rh1 Ne1 Bd4 Rc3 Rh3 Ba1 Qc8 Ke7 Bb2 d8Q Nc7 Qde8 Rf3 d7+ Kh5 d8Q Qh3 g6 Nd7+ Ne5 Rff4 Qg8 Ba8 g7 Rb7 Qb8 Qg3 Qge6 Qh3 g8N Qg3 Nf7 Bh8 Ne5 Rc4 Qf6 Qh3 Ng6 Qg3 Nh6 Qh3 Ng4 Qg3 Q2a4 Be4 Qa2 Rd3 N4e5+ Bf3 Rc2 Ra3 Rc3 Bg4 Qab3 Qd3 Qbc2 Bf3 Qcd2 Qb1 Q2c1 Qa2 Qcc2 Qb3 Qc5 Na6 Ng4 Qa2 Re3 Nf8+ Nc7+ Be5 Qg7 Ra7 Qb5 Bae4 Qc6 Nd7 Nd5 Qb3 Rd3 Bc7 Bf6 Rb7 Bh4 Be5 Qgf6 Bb2 N4e5 Nc7 Rc3
NBnNKNnR/7Q/P3p2r/Q1q1rNB1/1rn5/3N2r1/4b1nk/1bB4B b - - 0 1 legal: proof: f4 a5 c4 h5 a4 d5 cxd5 f5 e4 e6 exf5 Bd6 b4 axb4 g4 Rh6 g5 Rh8 Ra3 Bf8 Rg3 Be7 Rg4 Bf6 gxf6 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 b5 h4 g5 h5 c6 a5 g3 a6 b3 h6 b2 f7 g2 f8N g4 h7 b4 f6 g3 f5 b3 f7 Bb7 f6 Qa5 Ng6 Ra7 f8N Qc7 f7 Nd7 Ne2 g1N Ngf4 g2 Na3 b1B Ng3 b2 Nd3 Nb6 Qa4 Nc8 Qa5 c5+ Kc4 Nh3 Kb5 g1N Bg2 c4 Be4 c3 Nc4+ Ke7 d6+ Kf6 d7 Kg5 d8B+ Kg4 Nb6 c2 Bd5 Nf4 Nf5 Ng2 Bg5 Nf3 Na8 Ne5 Rh2 Nc4 Be4 Nf4 Bh1 Bf3 Rh6 Be2 Rh2 Qe5+ Kc6 Re7 Rh6 Re8 Kd7 Qc5 Rh3 Re7+ Kd8 Rb7 Ke8 Ng2 Rh6 Rb5 Rh5 Nh6 Rh2 Rg8 h8Q Rg7 Qh7 Ng8 Nf4 Rg6 d4 Rh6 d5 Rb3 d6 Rg3 d7 Kf3 Bd2 c1R d8N Re1 Bc1 Kf2 Nd3+ Kg1 Qa4 Bc2 Qa5 b1R Ng6 Rb5 f8B Rb4 Bd6 Bb1 Rh4 Qb6 Bb8 Qc5 Rd4 Kh2 Nf8 Bg4 Rd7 Re5 Rg7 Be2 Rg6 Rhh3 Rh6 Rh5 Qf7 Rhh3 Rh8 Rh6 Qh7
2R1nb1B/3Qr2p/4QN1k/1R1n2bN/r2PQ3/Nn2NN2/5q2/n2Q1bbK b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 h4 gxh4 b4 a6 b6 Be6 b7 Bf7 b5 Be6 b6 Bc8 Bb5+ axb5 Kf1 Bh6 Rh2 Kf7 g4 Kg7 Kg2 c5 f4 e5 d6 e4 g5 c4 d7 c3 g6 e3 Nf3 e2 Ra5 e1B Na3 c2 Bb2+ Nf6 d3 b4 Rb5 Na6 b8N c1B Nc6 b3 b7 Qa5 d8Q Qb6 b8N Nc5 Nce5 Nd5 Nbd7 Re8 Nec4+ Bc3 Kg1 h3 Rc2 h2+ Kg2 Bg5 f6+ Kh6 f5 h1N f7 Bb4 f8N Ra4 f6 Ng3 Ne6 Bce3 Ng7 Bg1 Nh5 Nge4 Kh1 Nd6 Qe7 Qa7 f7 Qb6 Bd4 b2 Qe4 b1N Bh8 Nd2 Rc3 Re6 Rc1 Ne8 f8Q+ Ng7 Qd6 Ne8 Ra5 Ba6 d4 Qb7 Ne3 Bf1 Qc7 Qb5 Qd6 Qe2 Rb5 Qf2 Qc6 Ncb3 Rc4 Na1 g7 Bge7 g8Q Bg5 Ndf6 Ndb3 Qd7 Bf8 Rc8 Re7 Qge6
1qBkB1B1/3qP2K/Qp2r3/R3r1qn/1Qr1n2Q/RN2B3/n2nQb2/1B6 b - - 0 1 illegal: No possible last move, all moves rejected
K1kN3Q/Nnp1n3/1Q1Q3r/1N1q3q/2P4N/N2Q1qrn/6RB/1Bb2n1r b - - 0 1 legal: proof: d4 f5 a4 e5 f4 b5 axb5 Nh6 g4 Ng8 e4 fxe4 dxe5 Qe7 Kf2 Qg5 Ke1 Qd8 b4 h5 f5 Bb7 f6 Bd5 Ra3 Be6 Rg3 Bf5 gxf5 Rh6 Rg5 Rh8 Rg4 hxg4 Kf2 d5 Ke3 Kd7 Kd4 g5 h4 a5 c4 a4 h5 g3 f7 g4 h6 g2 b6 e3 b5 e2 h7 e1N b7 a3 e6+ Kd6 b6 a2 f6 a1N e7 Kd7 Kc5 g3 Rh2 d4 Bf4 d3 Na3 d2 Nf3 g1R Bd3 g2 Bb1 Rh1 Nh4 Bh6 f8Q Nf3 e8N Nc6 b8Q Na5 b7 Nc2 f7 Ng5 Nd6 Ne3 Ndb5 g1Q Rg2 Qf2 Bh2 Nh3 Qc2 Ra6 Qd3+ Rd6 Qa7 d1Q b8N+ Kc8 Qb6 Rg6 Qe7 Bg5 f8N Qh5 Ne6 Qff3 Qf6 Qd7 Nd8 Ne7 Qfd4 Rhg8 h8Q Nf1 Qd5 Qe6 Qdd6 Rf6 Nbc6 Bf4+ Kb4 Nb7 Ka4 Rg3 Kb4 Nc5 Ka5 Nb7+ Ka6 Bc1 Ka7 Rh6 Ka8 Qed5 Nca7#
3B1Q2/b1R1N2b/1nq1b1PN/K2N1b2/1nq1nQB1/1kNnQQ2/1N1p4/6r1 b - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 f4 b5 axb5 g5 e4 Kf7 exf5 Bg7 f6 Kf8 f5 Ke8 Ra3 Bf8 g4 Bh6 h4 Qa5 Rf3 Qd8 Rf4 gxf4 g5 Bg7 g6 Bf8 Ba3 a5 Bc4 Ra7 Bc1 Rc7 Bf1 Rc3 Qe2 Rg3 Qd1 Rg5 hxg5 Qc7 Nc3 Qb6 Nb1 Qd8 Kd2 h5 c4 e5 g7 Kf7 c5 d5 b6 a4 b5 h4 b7 e4 c6 d3 Kc3 h3 b6 f3 c7 a3 Bb2 d2 Bc1 h2 Qa4 d1B Qa7 a2 Be2 a1N Bd2 d4+ Kc4 f2 Kb5 f1B Nf3 e3 Ka5 d3 Ne1 Qd4 Nc3 Nc2 Bg4 Be6 c8N e2 Ne7 Nb4 Ned5 Nd7 b8N Bh3 b7 Bc2 Nc6 Bc5 b8Q Qc4 Nce7 Nb6 Qf4 Bd4 Be3 d2 Nd3 e1N Nb2 Ned3 Rc1 h1Q Bf2 Rh6 Bh4 Rg6 Qf3 Na4 Qc5 Nb6 Qf4 Bg1 Qcf2 Qhe4 Q2e3 Qc6 Qff3 Qec4 Qff4 Bh2 Qff3 Bb8 Qff4 Ba7 Qff3 Ke8 f7+ Kd7 f8Q Nf6 g8N Kd6 Nh6 Ne4 f6 Bf5 f7 Rg8 Qef4+ Kc5 Qe8 Rg6 f8Q Be6 Bh5 Bhf5 Bg4 Qb3 Qd8 Qd7 Ncd1 Ne1 Neg8+ Nd6 N5e3 Bd3 Bf5 Rg7 Bh3 Bh7 Qc8+ Qc7 Nd5 Qc3 Qa6 Bcf5 Qae2 Ned3 Qee4 Kc6 Qee3 Ne4 Rc2 Qd6 Qe1 Kc5 Qee2 Rc7 g6 Rc8 Bg4 Rc6 Na4+ Kc4 Qee3 Kb3 Bd8 Rc7 Nge7 Qd4 Ra2 Rc1 Rc2 Rb1 Ndb2 Rg1 Rc6 Qc4 Rc7 Qdc6 Nac3
3B1bk1/2Q2b2/2p2N2/nRQRPR1n/KnnB1b2/2BB1Bq1/1r5R/1q5b b - - 0 1 legal: proof: c4 a5 g4 g5 f4 gxf4 h4 e5 a4 d5 cxd5 b5 axb5 Ra6 g5 Rb6 Na3 Rh6 Nc4 Rh5 g6 Rg5 hxg5 e4 Ne5 Be7 Nef3 exf3 Bh3 Bc5 Bf1 Bf8 d4 h5 Kd2 f5 Kc2 f2 Kb3 h4 e4 f3 b6 h3 b7 f4 d6 h2 d7+ Ke7 d5 c6 e5 Rh3 d6+ Ke6 g7 Kf7 g6+ Ke6 Ka4 Nf6 g8R Na6 b8B Nb4 g7 Kf7 Bd3 f1Q Ne2 f2 Nc3 f3 Bd2 Nh5 Nd5 Qh4 d8Q Be6 d7 Qg3 Qc2 Qb1 Ba7 f1N Qc7 f2 Bd4 Ne3 Nf6 f1N Qc5 Nc4 B2c3 Nfe3 Rh8 Bd5 Rd1 h1B g8B+ Kg7 d8B+ Bf7 Bgh7 Rh2 Bhe4 Re2 b3 Rb2 Rf1 Nf5 Bf3 Nfd6 Ra3 Nb7 Ra2 Nf4 Rh4 Nh5 Rd1 Kh8 Rf4 Kg7 Rf5 Kh8 Ng4 Kg8 Nf6+ Kg7 Bg1 Na6 b4 Qg4 b5 Rf2 b6 Qg3 Bb2 Rh2 Kb3 a4+ Kc3 a3 Kb3 Nb4 Bde4 Rc2 Ka4 Nba5 Bc3 Kh8 Rb2 a2 b7 a1B b8R Rh2 Rg2 Bb2 Rb5 Bc1 Rd5 Bf4 Bd3 Kg7 Bgd4 Kh8 Rg1 Rb2 Rg2 Kg7 Rh2 Kh8 Ng4 Kg8 Nf6+
n1QR1KB1/4B1rB/1nbN2N1/1b1BBN2/4Qr1P/n3b2p/k2n2b1/N5r1 b - - 0 1 illegal: No proof kernel
n1n1K2B/3B1nQ1/1r2BrBp/k2r4/1nQN3P/r1Q1R2R/1n3Q2/1Qbr4 b - - 0 1 legal: proof: d4 c5 e4 d5 a4 b5 axb5 cxd4 Ra5 d3 Ra4 d4 Ra1 Qd5 exd5 Ba6 Kd2 Bb7 Ke1 Bc8 f3 e5 Qd2 g5 Nc3 e4 Qd1 e3 Nce2 Bf5 Nf4 Be4 fxe4 gxf4 c4 Kd8 h4 Kc7 g4 Kb6 b4 f5 c5+ Kb7 c6+ Kb6 d6 a5 g5 h6 e5 e2 Kf2 e1N e6 d2 e7 d3 e8B f3 Ke3 f4+ Kd4 a4 Ke5 f2 Ke6 a3 Kf7 a2 d7 f3 d8Q+ Ka7 c7 Kb6 c8B+ Ka7 g6 Ne7 g7 Rh7 Qd7+ Kb6 Rh3 Ra3 Qe2 d1N Bb2 d2 Rb1 Rh8 g8Q a1N Qdg4 Nd7 Qgc4 Rh7+ Qg7 Nd3 Qe5 Rh8 Ne2 Nc2 Qec3 Rh7 Bg2 f1R Nd4 f2 Bc6 Re1 Ba1 Re5 Rb3 N1b2 Be4 d1R Bg6 Rd5 Re3 Nf6 Be6 Nc8 B8d7 Ne8 Rh3 Nc7 Re3 Na6 Ke8 f1R Rh3 Rf6 Re3 Kb7 b6 Ne5 b5 Nf7 Rh3 Ncb4 Re3 Kb8 b7 Ka7 Rh3 Kb6 b8Q+ Ka5 b6 Bd6 b7 Bf4 Qa7 Bd2 b8Q Bc1 Qf8 Rg7 Qab7 Rg8 Qh2 Rg7 Qf2 Rh7 Qg7 Nc7+ Kf8 Na8 Ke8 Rh5 Qe4 Rd5 Qb1 Ncd6+ Kf8 Rh8+ Ke7 Rb8 Re3 Nc8+ Ke8 Rbb5 Qcc2 Re1 Rh3 Rb8 Ne2 N2d3 Qg8 Rff5 Bh8 Rd1 Nd4 Nb2 Rbe3 Rf6 Qg7 Rb6 Q2c3
b2n2k1/2Rq1RNR/3n3N/r4bqQ/B1nr4/1rQ3P1/2RNNppK/4R3 b - - 0 1 legal: proof: b4 a5 bxa5 f5 g4 fxg4 Nc3 g5 Bg2 g3 Nb1 g4 Nc3 Bh6 Bh3 g2 Nb1 g3 Nf3 g1N Bf1 g2 d4 e5 Nfd2 c5 dxc5 Kf7 f4 Ke8 f5 Bg5 Ne4 Bf4 Ned2 Bg3+ hxg3 Kf7 Ne4 Ke7 Bf4 exf4 Ned2 Ke8 Kf2 Kf8 a4 d5 c4 b5 e4 h5 f6 b4 e5 d4 e6 f3 e7+ Kf7 e8N h4 c6 h3 c7 b3 a6 d3 a5 b2 a7 h2 a6 Rh7 c5 Nc6 Ng7 Qd6 Nc3 b1R Ne2 Bg4 c8Q Nd8 c6 Rab8 a8R Qd5 a7 R1b4 c7 Qg5 Rc1 R8b6 Rc2 Rd4 Rb8 Rh8 a8N Ne7 Rb7 Rb3 Nb6 Kg8 Nd5 Nf5 Ne3 Rh5 Ra7 Nd6 f7+ Kh7 f8R Bf5 Rf7 Kg8 Ne4 d2 Ng4 Rdd3 Nf4 Rd5 Bb5 Rd4 Qe2 d1B Nd2 Nb7 Ba4 Nd6 Qb5 Be2 Qe5 Bed3 Qa5 Bde4 Ne2 Ba8 Qc3 Qe7 Qe6 Qd7 c8R Rg5 Qh6 Rh5 Rcc7 Rg5 Ke3 f2 Qh5 Nf3 Re1 Ne5 Rab7 Nec4+ Kf3 Be4+ Kf4 Ra5 Ra7 Bf5+ Kg5 Qe6 Kh4 Qh6 Kh3 Qg5 Rf6 Bfe4 Rff7 h1Q+ Nh2 Qf1 Ng4 Bf5 Kh2 Bfe4 Ng1 Qd3 Ne2 Bf5 Ra6 Nc8 Rh6 N8d6 Rh7 Qde3 Nb1 Qe8 Nd2 Qd7 Nh6+
3N2K1/RRB3R1/b2N4/1Qb1rN1r/b2Q1pP1/1nqN2Rk/Rpn5/2r1q3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 fxe5 Bc5 Nc3 Be7 Nb1 Bf8 h4 g5 hxg5 Qd7 e3 Qd8 a3 Bh6 Bc4 Bf8 Ba2 b3 Qh5 bxa2 Qg4 Nc6 Qd1 Nb8 Ke2 Ke7 Kd3 b5 Kd4 f5 g4 h5 e4 b4 d6+ Ke6 d7 c6 a4 b3 a5 b2 a6 h4 g6 h3 g7 h2 a7 Ba3 Ne2 Bb7 Rg1 h1B Nbc3 Rh5 Nb5 Rh2 Nf4+ Kf7 e6+ Kf6 e5+ Kg5 e7 Kh4 e8Q Nh6 g8R Bd5 e6 c5+ Ke5 c4 d4 c3 e7 c2 Kf6 Bc5 Kg7 Bdc6 d5 Qa5 d8N Nf7 d6 Nh6 d7 Qe1 Nd6 Qc3+ Qd4 Ba4 Rg3 Ba6 Nd3 Nc6 Bf4 c1R Kf8 Re2 Rg7 Na5 Be5 Rb8 a8R f4 Ra7 Nf5 Kg8 Rb5 Ne6 Re3 d8N Nb3 Rb7 Ra5 Qb5 Re4 e8R Ne3 Ree7 Nc2 Ra7 Re3 Reb7 Re2 Nc4 Re3 Bc7 Re5 Nd6 Rh5 Nc6 Re5 Ne7 Rh5 Rb1 a1Q Nd8 Re5 Rg2 Kh3 Nef5 Qa3 Ra1 Qab4 Ra3 Qe1 Ra2 Qbc3 Qbc4 Ba3 Qb4 Rad5 Qb5 Bc5 Nh6 Rh5 Nhf5 Re5 Rg3+
1n1B1r1q/N5n1/RK1B1B1B/N1r1r3/PpQ4k/3n1q1B/1N4pb/2Q2Nb1 b - - 0 1 illegal: No possible last move
kR1b4/2q1Q2r/BB2Nq2/1b1r1Npr/6nP/7p/KN1BQ3/N2BN1nq b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 g4 exf5 Qd7 Ra2 Qd6 Ra1 Qd8 h4 h6 b4 Kd7 Qb3 Bg7 Qh3 gxh3 g4 Bf6 g5 Ke8 g6 Bg7 Ra3 Bf8 Rg3 Rh7 Rg2 Rh8 Rg5 hxg5 Kd1 Kd7 Kc2 c5 Kb3 Kc7 f4 Kb7 d4 e5 g7 a5 b6 c4+ Ka2 a4 d6 e4 d5 a3 f6 c3 f5 c2 f7 e3 d7 e2 b5 e1Q f6 Ra4 d6 Qa5 Nc3 Na6 Nd1 Be7 f8N Qc7 d8N+ Ka8 d7 Qcc3 f7 Rb4 b7+ Kb8 Nc6+ Kc7 d8B+ Kd6 b8N Ra4 b6 Bf6 b7 Rd4 Nb2 Nh6 g8B Qc7 Ne7 Nc5 Na6 Bd7 b8Q Ne6 Nf5+ Kc6 Nc5 Ng4 Ba6 Rd5 Nf3 Rh5 Bd2 c1R Nb3 Nd4 Ne6 Ne2 f8Q Ng1 Ne1 Qf3 Rh2 Qh1 Na1 Rc3 Qc8 Kb6 Qe8 Ka7 Qe7 Bb5 Qcd7 Rc4 Qde8 Ka8 Rf2 Rc6 Rf4 Rcd6 Rb4 Rd7 Rb3 Ba4 Rb7 Bb5 Q7f8 Rdh7 Qfe7 Qc1 Bb6+ Qc8 Qg7 Bd8 Qee7 Qc5 Qe5 Qc7 Bf7 Qd7 Qe2 Qc7 Kb3 a2 Be8 Bd3 Ba4 Bb5 Ka3 Bc6 Bd1 Bb5 Nac2 a1Q+ Kb3 Qc1 Na1 Q1c3+ Ka2 Qf6 Rb8+
K7/2R3np/1qN1B1bk/NQ5n/1RrQ1n2/1P1Rr3/1bp1rqN1/1N2RN2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 gxh4 b3 d5 cxd5 a4 Bb2 b5 a3 b4 axb4 a3 b5 axb2 Ke2 Kf7 Ke3 Kg7 Kd4 h3 Kc5 e5+ d6 e4 f4 h2 d4 c6 g4 e3 d5 e2 g5 e1R f6+ Kg6 f5+ Kf7 g6+ Ke8 b6 Bg7 b7 Kf8 f7 Bd7 Qd4 Bc8 d7 Re5 Ra7 Nf6 Nf3 Ng4 Nfd2 Qg5 Kb6 c5 d8N c4 d6 c3 d7 c2 Nc6 Re2 d8N Ne5 Bh3 Qh4 Na5 Na6 b8Q Qf2 Rc7 Nd3 Ndc6 Nf4 Re1 h1N Nf1 Nc5 Qb7 Rb8 Ka7 Nce6 Qb5 Ng3 Bg4 Rb7+ Ka8 Ngh5 Bh3 Bf6 Bg4 Kg7 f8N+ Kh6 g7 Be5 g8R Neg7 f6 Bf5 f7 Bg6 Ne6 Rb6 Rgc8 Re8 f8R Rb7 Rd7 Rc7 Rb8 Rcc8 Rc7 Re7 Rd8 Re8 Nbd2 b1Q Rdd7 Qa1 Nb1 Qc3 Rd5 Qc5 Rd8 Qb6 Rdd7 Nd5 Nf4 Re6 Ng2 Ndf4 Bh3 Bf6 Rd5 R6e3 Be6 Be5 Qdb4 Bb2 Rd3 Rd8 Qe4 Rd4 Rbb7 Ra4 Qd4 Rc4 Qbd5 Qc5 Rb4 Qb6 Qb5
2r1Q3/6pQ/Q1PbQ1K1/qn1Np2r/bq1N4/2rRn2R/n1R5/k1RRB3 b - - 0 1 illegal: No possible last move
R1rRbn2/2Q1p1qb/1q3r2/R1N4q/1QB1BB2/3R1P1r/B2Kp3/k2B3n b - - 0 1 legal: proof: h4 b5 d4 g5 hxg5 c5 a4 cxd4 axb5 d3 e3 Ba6 Bd2 Bb7 Bc1 Bc8 Kd2 d5 Qg4 f5 Qe2 d4 Nc3 Bg7 Ne4 Bf6 Qd1 Bg7 Ke1 d2+ Ke2 Bf6 Kd3 fxe4+ Kc4 d3 Kb4 Bd4 exd4 Ba6 Kc3 Bc8 b4 Kf7 g4 Ke6 f3 Kd5 b6 a5 b7 h5 b5 a4 b6 e3 g6 a3 g5 a2 g7 h4 g6 h3 Be2 h2 Qe1 d1B Nh3 d2 Ng5 Rh6 Ne4 Qd7 Nc5 Nc6 b8R Qg4 b7 Nf6 g8B+ Be6 g7 Nd7 Rc8 Nf8 b8Q Nb4 Qc7 Nd3 Bh7 Bd7 g8B+ Qe6 Re8 Ra6 Ra8 Nf2 Rg1 h1Q Bf7 Qh2 Rg8 Ng6 Rgd8 Nh1 Kd3 Qe5 c3 Ba4 Bd1 Rh3 Ke2 Kc4 d5 Bac6 d6 Nf8 Be4 Be8 d7 Qh5 Qh4 Bd5 Qg4 Qb6 Be6 Kb5 c4+ Kb4 Kd3 e2 Ke3 Ra4 Ra5 Kc3 Rda8 Bc6 d8R Bg6 Qh4 Bce8 Rd3+ Kb4 Rad8 Bh7 B4f5 Nf2 Qc6 Qa6 Nd7 Qg6 c5+ Qg4 Bdb3 Qa8 Ra7 Qb8 Ra8 d1Q Qc8 Qg1 c6 Qb5 c7 Ra6 Bd1 Qb7 Bd5 Rf6 Qb8 Qg2 c8B Nh1 B5b3 Qb5 Ba6 Qb7 Qhg3 Qh5 Be4 Qbb5 Bd2+ Ka3 Qbd6+ Kb2 Qb4 Qa5 Qgb8 Qg7 Bb5 Rf5 Qb6 Rc5 B5c4 Rc8 Qc7 Qa7+ Nc5 Qb8 Rc1 a1R Rc2+ Kb1 Rca2 Qb5 R2a7 Ra6 Ba2+ Ka1 Bc1 Rf6 Ra5 Qb7 Kd2 Qa7 Kc2 Qa6 Bf4 Qb6 Kd2
1nrB3B/6RK/1bnqBb1n/1Q2R1N1/4P3/3n2p1/nQpB2k1/1R1B2Rr b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 hxg4 d6 Rh4 Nh3 Rh7 Ng1 Rh8 e4 Be6 d4 Bc8 d5 Bf5 Nc3 Ne7 Nce2 Ng8 Nd4 exd4 f3 Rh5 e5 Be4 fxe4 Rh8 Kf2 Kd7 Kg3 c5 Kf4 a5 Kf5 g5 h4 d3 b4 d2 b6 g3 b5 g2 h5 a4 b7 a3 h6 g4 b6 c4 h7 a2 Rh2 c3 Ba3 g3 Qc1 d1N Be2 c2 Qb2 Be7 Rh5 Nf2 Nh3 g1B Bd1 Nd3 Ng5 Bf6 Bb4 Qf8 Rb1 a1N Bd2 Nb3 Ra1 Nbc1 e6+ Ke8 d7+ Ke7 d8R Na2 Re8+ Kd6 e7 Kc5 Qb5+ Kd4 d6 Bf2 d7 Bg1 Ba5 Ke3 d8B Kf2 Bd2 Kg2 Rh6 Bgd4 Rg6 Qh6 Rg7 Be3 Rf8 Bc5 e8B Ne7+ Kg4 Qg6 Bd7 Nec6 Re8 Qh6 Kf5 Bg1 Rgg8 Qf8 Re5 Qd6 Rg7 Bc5 Bc7 Rc8 h8B Ra4 Bf4 Rb4 Bd2 Rb1 Be6 Rc1 Bh5 Rh1 Bd1 Be7 Bh5 Nd7 Qc4 f6 Kg6 f5 b8Q f4 b7 f3 Bd8 f2 Rc1 f1N Kh7 Nh2 Qb4 Ng4 Rg1+ Kf2 Qb3 Nh6 Bd1 Bf6 Qa8 Nab4 b8R Na2 Qa5 Bd4 Rb4 Ndb8 Qb5 Bb6 Qa3 Nd7 Rb1 Ndb8 Rf1+ Kg2 Qab2 Kh2 Re1 Kg2 Rg1+
Q2B1R1q/Q2rN1Rr/2K3p1/b5Qp/N4r1N/n2b1P2/5n2/r1NNk1rQ b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 g6 h4 b4 h5 b3 axb3 Kd7 b4 Ke8 b5 Bg7 Rh2 Bh6 Rh1 Bf8 g4 gxh5 b6 Bb7 g5 Ba6 g6 Bb7 g7 Bc8 Bb5+ Kf7 Bc6 Bb7 Bd7 Bc8 Be6+ Ke8 Bf7+ Kd7 Bg6 hxg6 Ra4 Ke8 Ra3 Rh7 Ra1 Rh8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 b4 a5 d4+ Kf6 b5 c5 b7 e5 b6 a4 d6 c4 Kd5 e4 d7 e3 Nf3 e2 Nh4 e1R Nc3 a3 Rf1 a2 Bg5+ Kf7 f6 Qe7 d8Q Nc6 b8Q Bf5 b7 Bd3 Qa7 Re4 b8N Na5 Nc6 Rh7 Nb4 Nh6 g8N Ng4 Rb1 a1R Nba2 Bg7 Nc1 Rf4 Rb7 Qc7 Ne7 Qb8 Kc5 Ke6 d5+ Ke5 f7 Bf8 Kb6 Kd4 d6 Bg7 f8Q Bf6 f3 Ke3 Re1+ Kf2 d7 Be5 Re4 Bc7+ Kb5+ Bb6 Qh1 Qc8 Qh8 Rb8 Rc7 Rb7 Re6 Qb8 Rf6 Qa8 Rf8 Qb8 Qg2+ Ke1 Nd1 Nf2 Qf6 Qa8 Qe8 Qc8 d8N Qb8 Ne6 c3+ Rc4 c2 Nc5 Rc7 Na4 Rd7 Qf5 Qd8 Bf6 Qa8 Qfg5 Bc7 Kc5 Qc8 Rd4 Nc4 Kc6 Na3 Rb4 Qb8 Rb7 Ba5 Qh2 Qe5 Qea8 Qb8 Bd4 Qe5 Bb6 Qh8 Bd8 Bc4 Ne2 c1R Qh3 Rcb1 Nc1 Bd3 Qh2 Rg4 Qg2 Rbb4 Qh3 Rbf4 Qh1+ Rg1 Nef5 Rdd4 Rg7 Rd7 Ne7
N6r/QQ2R1qk/BB6/1n2b1b1/2QpQB1R/1Kn2rB1/P1pr4/Q1r4n b - - 0 1 illegal: No possible last move
1B1nRqn1/Q2R3Q/3R1P2/n1r1kpr1/Q2p3b/B2b4/N2K1R2/Q1rR3n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e6 dxc5 b4 f5 b3 axb3 Ba6 b4 Bb7 b5 Bc8 e4 Nc6 e5 Nb8 Bd3 Rh7 f6 Rh8 Bf5 exf5 e6 Bd6 Nd2 Ne7 Ndf3 Ng8 Ng5 Bf8 e7 Bb7 Ne2 Bc8 Ne6 fxe6 Ng1 Kf7 b4 g5 c4 d5 h4 a5 b6 d4 b5 g4 h6 a4 c6 g3 c7 g2 c5 a3 h7 a2 h5 e5 c6 Ke6 b7 e4 b6 e3 Qa4 e2 Ba3 Na6 b8Q Nb4 b7 Bh6 Rh2 Ra5 Qa7 Bg5 b8B Ba6 c8R Bh4+ Kd2 e1N c7 Ned3 Ne2 Qf8 Rd8 g1R c8R Bg3 Rd6+ Ke5 Nc1 Nc6 Rcd8 Nf2 R8d7 Rc5 Rg2 Nh1 Rf2 Rf1 Rb1 a1N Na2 Nd8 Rc1 Nh6 Rb1 Rg8 h8Q Bh4 Qg7 Be2 Qg1 Rg6 Re1 Ng8 h6 Rg2 h7 Rg5 Rb1 Bd3 h8Q Be4 Qh7 Nb3+ Ke2 Na5 Kd2 Bd3 Ra1 Rb1 Qc1 Rb3 Qb2 Rbb5 Rd1 Rc1 Qa1 Rbc5 e8R+
k3B1Qr/2KQ1P2/B4Np1/4nN1R/4bpb1/Q1N1N2Q/n3n2b/bq2N1r1 b - - 0 1 legal: proof: h4 e5 a4 d5 c4 g5 cxd5 b5 axb5 Bh3 hxg5 Bg4 f4 Nc6 b3 Qf6 Ba3 Bh3 Bc5 Bc8 f5 Nb8 Be3 Qd8 g4 Ke7 b4 Bg7 g6 Kf8 g5 Ke8 Bf4 exf4 Ra6 Be5 g7 Ba1 g6 Nf6 g8B Be5 g7 Bd6 Rc6 Bf8 Rb6 Nh5 Rh6 Nf6 Rg6 fxg6 Kf2 Kd7 Kf3 a5 d4 c5 e4 Kc7 e5 Kb7 d6 h5 d5 a4 b6 a3 d7 a2 d6 a1N e6 h4 e7 c4 e8N c3 b5 c2 Qd3 c1B Qa3 h3 Bf7 h2 g8Q Qc7 d8Q Ra4 d7 Rd4 Ng7 Nh5 f6 Bc5 Be8 Ra4 f7 Ra7 Ke4 Bf2 Kd5 Bh4 Nf5 Qc2 Kd6 Qe2 Nf3 Qb2 Ne1 Qa2 Ne3 Bb2 Nc3 Bg3 Qh4 Ka8 d8Q Nc6 Qh3 Nc2 Qdd7 Qb1 Bd3 Ra4 Kc7 Ne5 Bf1 Ba1 b7+ Ka7 b8N Ka8 b6 Nb4 Ba6 Na2 Nc6 Re4 Rg1 h1B Ne7 Bh2 Rg5 Ng3 N7f5 Ne2 Rh5 Rb4 Ng3 Be4 b7+ Ka7 b8N Ka8 Ngf5 Rd4 Qde7 Rd1 Nd7 Rc1 Nf6 Rd1 Nh6 Bg4 Qd7 Rc1 Nhf5 Rd1 N1g2 Rg1 Ne1
2k2b2/2Q1P1b1/p3r1n1/bQBBR1NN/1b1pQ3/1B2r2q/1nQ2KQB/r7 b - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 axb5 e5 c4 dxc4 gxh5 Ba3 Qc2 Bd6 Qd1 Bf8 b4 Be6 e4 Qc8 d5 Ne7 Ra2 Kd8 Rd2 Ng8 Rd4 exd4 f3 Bf5 e5 Be4 fxe4 Ke8 Qg4 Qd7 Qd1 Qd8 h4 Kd7 b6 f5 b7 c5 h6 g5 d6 a6 h5 c3 b5 c2 h7 c4 h6 g4 b6 g3 e6+ Kc6 e5 c3 d7 g2 e7 f4 e8B f3 e6 Qg5 d8Q+ Nd7 b8B Kb7 Nh3 g1B Ba3 c1B Bh2 c2 Bc4 Bc5 Nc3 Ne5 Ne2 Bf8 Bb3 Bge3 Ng3 Qf5 Nh5 Bed2+ Kf2 Ba5 Bc5 Bcd2 Bf7 c1B Qc2 Nc4 Re1 Bdb4 Ng5 Qh3 Re5 Ne7 Qe8 Rd8 Qb5 Ng6 e7 Nb2 Bfd5+ Kc8 Qe4 Rg8 h8Q Rd6 h7 Re6 Qg7 Bf4 h8Q Bfd2 Nf7 Bh6 Qhh7 Rh8 Ng5 Rg8 Qf7 Bhg7 Qff5 Rh8 Qfg4 Rg8 Qg2 Rh8 Kf1 f2 Ke2 f1R b7+ Kb8 Qc2 Ra1 Kf2 Rg8 Qbe2 Kc7 b8Q+ Kd7 Qbb5+ Kc8 Qee4 Rh8 Qg8 Rh7 Ng3 Rh4 Nh5 Rg4 Qf7 Rg3 Qff4 Re3 Rf5 Rc3 Qd6 Rd3 Re5 Re3 Qc7+
r2B3r/2nRp3/2k1N2R/1R1b1b2/qRpQRr2/5Nb1/2Q1PnKN/3N2b1 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 b5 f4 d5 cxd5 g6 f5 Nf6 a4 axb4 axb5 Ng8 Bh3 Rh7 fxg6 Rh6 g5 Rh8 Bg4 hxg4 Kf1 Kd7 d4 f5 h4 c5 g7 f4 g6 f3 h5 c4 b6 f2 b7 g3 d6 b3 h6 b2 h7 Qa5 d5 Qa3 Nf3 Ra4 Kg2 f1R Bd2 Qb4 Qc2 Ra2 Nc3 b1B Rh6 Nf6 g8N Qb3 g7 Ra8 Ra4 Ra6 Nd1 Ng4 Nf6+ Kd8 g8R Bd7 Rb4 Nf2 Ng4 Bc8 d7 Kc7 d8R Ra8 d6+ Kc6 Rd7 Qa4 Ngh2 Na6 b8R Bg7 R8b5 Be5 Rg4 Nc7 Re4 Bb7 Be3 Rhc8 h8Q Rcb8 Qg7 Rh8 Bb6 Bf4 Qd4 Be5 Ne1 Bf4 Kf3 g2 Ba5 g1B Kg2 Bg3 Bb6 Ne6 Bd8 Nc7 Nef3 Nh1 Nh4 Rf4 N4f3 Nf2 Qcd2 Qa1 Re3 Na6 Ba5 Ng4 Rd8 Bf5 Qc2 Bbc8 Re4 Bce6 d7 Qa4 Rdb8 Bg6 R8b7 Bd5 Bc7 Nf2 d8N+ Kd7 Ra7 Bf5 Ne6 Kc6 Ba5 Rag8 Rd7 Ra8 Bd8 Nc7 Qf6 Qa2 Qfb2 Qa4 Qd4
2n1qb1B/Qp5Q/1p1BPB2/r3R1n1/N2bQ3/3n1kbQ/K1n3r1/N1B4B b - - 0 1 legal: proof: c4 e5 f4 f5 g4 d5 a4 h5 fxe5 f4 cxd5 Ke7 b4 Nd7 b5 Ke8 b6 axb6 Ra3 Nb8 Rg3 Bf5 gxf5 Ra6 Rg2 Ra8 Rg4 hxg4 h4 Kf7 d4 c5 Kd2 g5 Kc2 g3 Kb3 c4+ Ka2 f3 e4 c3 e6+ Kf6 e5+ Kg7 f6+ Kg6 e7 Kf5 e8Q Ke4 a5 g2 d6 g4 a6 f2 a7 g3 d5 c2 f7 Qe7 d7 Na6 d8B Qf6 d6 Nc7 d7 Nb5 h5 Nd6 h6 Rh7 Ne2 g1N Nbc3+ Kf3 Na4 g2 Rh5 Rg7 h7 Nh6 h8B Qg6 Bf6 Nc8 d8Q Nh3 Q1d7 g1B Qd8e7 Nf4 Rg5 Bh2 Qh3+ Bg3 e6 Qh5 Re5 Nd3 Qb5 Rg8 Qbb4 Rg5 Bb2 c1B Nd4+ Kf4 Qe1 Be3 Nb3 Bd4 Bg2 f1N Na1 Ne3 Bh1 Nc2 Qe2 Bg7 f8B Qe8 Qc7 Nf7 Bd6 Bf8 Qeg2 Rg4 Qd5 Ng5 Qch7 Bh2 Qc4 Rg2 Qb4 Bg3 Bc1+ Kf3 Qc4 Rb8 a8Q Bf2 Qg8 Bd4 Qa7 Ra8 Qb4 Nde1 Qgh7 Nd3 Qb8 Ra5 Qa7 Bc5 Qbh4 Bd4 Q4e4+
kB2Qrn1/p3nq2/1R3B2/B1RB3r/5p2/1rQ1NQ1b/r2Q2Pb/1B1b1K2 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 h4 Bf8 b4 g5 hxg5 c6 b6 Qc7 Na3 Qd8 b5 c5 Nc2 Qd6 Nb4 cxb4 Ra5 Qe7 Ra1 Qd8 e4 Kd7 d4 f5 d6 h5 d5 f3 b7 b3 b6 h4 g6 f4 e5 h3 e6+ Ke8 d7+ Ke7 g7 Kd6 e7 h2 e8Q b2 Nh3 b1B Nf2 Na6 b8B+ Qc7 d8B Bh3 b7 Rh4 Ra5 Rh5 Rc5 Nb4 Bd3 Bc2 Bd2 Nc6 Kf1 Nce7 Ng4 f2 Qf3 Bd1 Rg1 h1R Ba5 Rh2 Ne3 Rh1 Bb1 Rh2 Qg6+ Kd7 d6 Rh1 Rd5 Kc6 Qd3 Qd7 Qd2 Qf5 d7 Qf7 Bbc7 Rc8 b8Q Rh2 Qbb4 Ra8 Qbe4 Kb7 Qed3 Rb8 Qc4 Ka8 Qcc3 Rb3 Bb8 Nc8 Rd6+ Rd5 Qc5 Bg4 Qdb4 Rh8 Rb6 Rh5 Nf5 Bc2 Ke2 f1R Ba2 Ra1 Bb1 Ra2 Rc1 Bd1+ Kf1 Qe8 Qd2 Bh3 Qcc2 Be7 Ne3 Bh4 Bg5 Be1 d8Q Bg3 Qd7 Qf8 Qe8 Nce7 Qb2 Bh2 Rc5 Qf5 Qbc3 Qh7 Bh4 Rf5 Bg5 Rf8 Bf6 Qg6 Qg4 Rh5 Qg3 Nh6 g8B Qh7 Be6 Qf7 Bc4 Nhg8 Qf3+ Qd5 Rcc6 Qe6 Bd5 Qf7 Rc5+
2b1BR1Q/b5bQ/2NNqrp1/2NpB2q/8/r7/qk1r1QNP/2n1KN1Q b - - 0 1 legal: proof: f4 c5 e4 f5 exf5 h5 a4 b5 axb5 Qb6 g4 Qd8 b4 Nf6 d4 cxd4 g5 Nd5 f6 Kf7 Ra3 Ke6 f5+ Kd6 Rg3 Na6 Rg4 hxg4 Nf3 Nc5 Ng1 Ne4 f7 Nef6 Na3 Ng8 Nb1 Ndf6 gxf6 Ke5 Bd2 Kd5 Bc1 Kd6 c4 Ke5 b6 a5 c5 d5 b7 g3 b8N a4 b5 g2 b6 g6 b7 d3 c6 Kd4 c7 e5 Na6 e4 b8N e3 Nd2 Kc3 Nc5 a3 Nh3 g1B Nf4 a2 Nc6 a1Q Ng2 Bg7 f8Q e2 f7 Nf6 Qe7 Qa2 f8Q Nd7 f6 Ra3 f7 Ne5 Qh4 Rg8 Qh7 Qg5 Qd8 Re8 f8Q Qh5 Qf2 Rf8 Qe8 Rf6 Qeh8 Bd7 c8N Bf5 Nd6 Bc8 Qh4 Bd4 Qf2 Be3 Nf3 Bd4 Bf4 Kb2 Nd2 Be3 Nce4 Ba7 Rg1 Nd7 Bg3 Nc5 Bf4 Nb3 Nc5 Nc1 Be5+ Rc3 Ne3 Ka1 Rg4 Kb2 Rd4 Ra3 Bh3 Rf5 Ndf1 Rf6 Bd7 Qb1 Be8 Qa2 Qf5 d2+ Kf2 Bb7 Ng2 Bc8 Qe1 d1R Qf3 Re6 Rf4+ Rd4 Rf8 Rf6 Qd1 e1Q+ Kg1 Qb4 Kf2 Qb6 Ke1 Qa6 Bg3 Rd2 Qf2 Qd3 Qdf3 Qdf5 Bf4 Qe6+ Be5+ Kb1 Qg1 Kc2 Qff2 Kb1 Qh1 Kc2 Nd4+ Kb2 Nc6+
R1k2Nn1/1RB4Q/rn2R3/p1K1bB2/r4r1n/1rBP4/RBp3r1/R3Q2q b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 f3 Nc3 f4 Ne4 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Kd7 e4 c5 b4 a5 h4 g5 h5 c4 d6 c3 h6 c2 f6 Na6 e5 Qe7 h7 Rb8 b6 Ra8 e6+ Kd8 b5 Qb7 d3 Qc7 d7 Nb4 f7 Nd5 b7 Ndf6 b8B Ra6 b6 Qb7 Bh3 Bg7 f8B Nd5 Ra2 Be5 Bb4 Qc6 b7 Nb6 Ne2 g3+ Kg1 g4 Bc3 g2 Kf2 g1R Qe1 Rg3 Nd4 Qd5 B1b2 Rg2+ Kf1 g3 Bf5 f2 Ke2 f3+ Ke3 f1R Bc7+ Ke7 d8R f2 b8R Qb7 Qd2 Ra1 Qe1 f1R Rd6 Qd5 Rb7 Rf4 Rg1 Ke8 e7 Rb1 Re6 Kd7 e8R Qc6 Bc1 Rb3 Ra8 Qd5 Bb8+ Kc8 B1b2 Rgf2 Rf1 g2 Rh1 g1N Bc7+ Kd7 Bb4 Nf3 B4c3 Nh4 Rg1 Nh6 Rf1 Rd8 h8Q Qh1 Rg1 Rb8 Qh7+ Kc8 Rf1 Ng8 Rg1 R4f3+ Ke4 Rg2 Rf1 Nd7 Kd5 Nb6+ Kc5 Ra3 Qe2 Rff2 Rfa1 Ra4 Qe1 Rf3 Nc6 Rff4 Ne7+ Kd7 Ng6+ Kc8 Nf8 Nd5 Rb3 Rgg4 Ra7 Rg2 Rbb6 Rb7 Rbc6 Rbb4 Rb6 Rb3 Rbb7 Nb6 Ra8+
1r4nr/1P6/Bn4N1/2Bp2rN/3Nb3/Q1pRB2k/N3r1QN/2r1qBKn b - - 0 1 illegal: No possible last move, all moves rejected
7R/rbr2RBk/q1p3pP/2R1K3/n1B1nQ1R/BqN2r2/4r3/1B2QRq1 b - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 f5 Ng1 h5 Nc3 f4 Ne4 f3 Nf6+ Kf7 Ra5 Bd6 Ng4 hxg4 Ra1 Bf4 gxf4 Ke8 Kc3 Kf8 Kd4 a5 h4 c6 b4 g3 e4 a4 f5 g2 e5 a3 e6 a2 d6 Qe8 e7+ Kf7 d7 Na6 d8R Bd7 f6 Kg6 f7 Rh6 f8B Qf7 e8B Nf6 b6 Nb8 b7 Kh7 b5 Kg8 h5 Rh8 b6 Rh6 Qe1 Na6 b8R Nc5 b7 Ne6+ Ke5 Kh7 d4 Nd5 Ne2 g1Q Rh4 Nc3 d5 Ra7 d6 Na4 Ba3 Nec5 Nc3 Qb3 Bc4 Bc8 Rd7 f1Q Rf7 f2 d7 Ne4 d8R Qd3 Rb1 a1R Rd5 f1R Rc5 Rf3 Ra8 Ra2 b8Q Rg6 h6 Bb7 Bd7 Re2 Bf5 Qb6 Qd6 Qa6 Ra1 Qb1 Qdd2 Qb3 Qf4 Kh8 Rd8 Rf6 Rad1 g6 Bg7+ Kh7 Rdf8 Rd6 Rc1 Rd7 Rd1 Rc7 Rdd8 Ref2 Rc8 Ng5 Bb1 Re2+ Qe4 Qg2 Rd7 Rg3 Rf1 Rf3 Rf7 Qg1 Qe3 Ne4 Qf4 Rff2 Rb8 Rf3 Rh8#
R3Q3/bq1b2Pr/NQk3b1/2pr3q/1r2B1Qp/3RQ1RK/2R2Qr1/1N5n b - - 0 1 legal: proof: c4 g5 f4 d5 cxd5 e5 b3 exf4 a4 b5 axb5 g4 Ra2 g3 Ra3 Nc6 Ra1 Nb8 h4 Qg5 h5 Qh4 Bb2 Ba6 Bd4 Nd7 Be3 Ne5 Bf2 Ng6 hxg6 Ke7 Qc1 gxf2+ Kd1 Bg7 g4 Bf8 Kc2 Kd7 Qd1 Qd8 g5 Ke8 Kc1 Bc8 d4 Kd7 Kd2 c5 e4 h5 Ke2 a5 Kf3 f5 Kg2 h4 b4 a4 d6 a3 g7 a2 d5 f3+ Kh3 f4 e5 Nf6 g8R Qb6 g6 Ra6 e6+ Kd8 d7 Kc7 d8Q+ Kb7 d6 Rh7 d7 Rf7 e7 Rg7 e8Q Bd6 Qde7 Bb8 Qe3 Ra7 Ne2 Ng4 d8R Bd7 Bg2 f1Q Nd4 Qe2 Nc6 f2 Be4 f1R Rh2 f3 Qdd4 Qd1 Rc2 f2 Qf8 Qc7 b6 Rg1 b5 Ra4 Qe8 Ba7 Nb4+ Qc6 Qf8 Rh7 Na6 Rg2 g7 f1B Qff2 Rb4 Ra8 Bd3 Rgd8 Qe2 Qc4 Nf6+ Qe6 Nh5 Qg4 Be8 Rd5 Ng3 Rg5 Nh1 Rd8 Bc4 Rd3 Be6 Rg6 B6d7 Rg5 Kc8 b7+ Kd8 b6 Bg6 b8Q+ Qc8 Qgf5 Qh5 Rg3 Ke8 Qc7 Qb7 Qg4 Ke7 Rb3 Ke8 Qc8+ Ke7 Qe8+ Kd6 Rbc3 Rd4 Rd3 Rd5 Qfe2 Kc6 Q2f2 Qb8 b7 Qc7 b8Q Qb6 Na3 Qb7 Rf1 a1R Nb1 Ra3 Rfd1 Ra1 Ra3 Ra2 Rdd3 Rb2 Ra4 Rb4 Qbd8 Kd6 Qb6+ Bc6 Qb5 Bb6 Nb8 Bd7 Ra8 Ba7 Qa6+ Kc7 Qa5+ Kd6 Na6 Kc6 Qb6+
Q4B2/B3Kb2/R4p1r/4p3/2P2Qk1/QpbBnNr1/NQn2r2/2Bb1B1q b - - 0 1 illegal: No possible last move, all moves rejected
Q2nk3/PB2b1Kp/3R1B2/3B2p1/rBRp1nRq/2bRNBQ1/1r5b/r7 b - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 f5 b4 fxg4 bxa5 e6 d6 e5 h4 g5 d4 Be6 h5 Nf6 d5 Ng8 Nd2 Bf5 Ndf3 Bc2 Nd4 Bg6 hxg6 exd4 Kd2 b5 Kd3 c5 Ke4 b4 Ke5 c4 a4 b3 f4 b2 e4 b1R d7+ Ke7 a6 c3 a5 c2 g7 g3 f5 g2 f6+ Kf7 a7 Na6 d6 Nc7 a6 Rbb8 Rh3 Rb6 Be2 Rb3 Bf3 Ne7 g8B+ Kg6 f7 Rab8 a8Q Rb2 a7 Rc8 Qd3 Ncd5 Ra4 Rbb8 Ne2 g1B Ba3 c1B Rc4 Nf4 Ng3 Ne2 Nf1 Rb2 Bb4 Rb8 Ne3 Qe8 d8R Bf2 d7 Bd2 Ke6 Bg1 e5+ Kg7 Rh4 Rc8 Rg4 Nc6+ Kf5 Qe7 e6 Nf4 Qc3 Qd6 e7 Qh6 e8B Be7 f8R Qh4 Bgd5 Bh2 Bef7 Rb1 Bde4 Re1 Bfd5 Ra1 Rf6 Rg8 Re8 Rc7 Rd6 Nd8 Bb7 Rc6 Bd5 Rca6 Qb3 Bc3 Ke5 Nde6 d8B Kf7 Kf5 R6a4 Ke5 Bf8 Bf6 Be7 Rec8 Rd8 R8c6 Rb8 Ra6 R4a2 Ra3 Ke8 Kf5 Bb2 Qc3 Nd8 Qe1 Bc3 Qg3 Bb2 Rac3 Ra4 Rd3 Bc3 Be5 Bf8 Kf6 Be7+ Kg7 Re1 Ba6 Rea1 Bf6 Rb5 Bab7 Rb6 Ba5 Rb2 Bb4
5b2/QbN4n/BK3Qr1/pQB1rn2/1r3PB1/1kpRB1pQ/4q1Q1/q6N b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 g5 e3 f4 exf4 Be6 Qf3 Bg4 Qd1 Bc8 b4 h5 Ra3 g4 Rh3 Bd7 f3 Bf5 Rh4 gxf3 g4 Be6 g5 Bc8 Rg4 hxg4 Kf2 Kf7 Ke3 e5 d4 c5 h4 a5 g6+ Ke7 b6 Kd6 h5 g3 h6 f2 b7 c4 h7 c3 b5 e4 g7 Bg4 b6 Nd7 b8Q+ Qc7 b7 Ndf6 Qc2 Bd7 Ba6 f1Q Qg2 Nh5 Qa7 Rc8 b8Q Bg4 Na3 Ngf6 g8B Be2 Nh3 Qg1+ Nf2 Be7 Be6 Ng7 Bg4 Nge8 Qb5 Rg8 h8Q Rd8 Qhh3 Bf3 Bd2 Qc1 Rd1 Qc4 Nh1 Qa1 Bc1 Rb8 Rd3 Bf8 Bd2 Rb7 Bc1 Ke7 d6+ Kf7 d7 Nh7 d8B Nd6 d5 Rg6 Be7 Qca2 Kd4 e3 Kc5 e2 Bh5 e1R Bg4 Qe2 Be3 Nf5 d6 Ke6 d7 Rb6 d8Q Bb7 Qb2 Rb4 Nb5 Re4 Kb6 Re5 Qc2 Rb1 B7c5 Rb4 Qdh4 Rd4 Qf1 Kd5+ Qf6 Kc4 Qfg2 Rde4 Qb1 Rd4 Qbf1 Kb3 Nc7 Rc4 Qff3 Rd4 Q3c6 Rb4+ Qb5
1nb4N/2QQ1R1K/BQ1p1p1R/1nQ1r1N1/5q1R/1p2Qq2/5Pb1/n2r1k1R b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g6 h5 g5 a4 cxb4 axb5 Bc5 Ra5 Bd6 Ra1 Bf8 g4 Nf6 h6 Bg7 hxg7 Ke7 g8R Qb6 Bf4 Qd8 Bg3 Qe8 Bh4 gxh4 g5 Kd8 g6 Ke7 g7 Qd8 Kd2 Ke6 Kd3 Kd5 c4+ Kc5 e4 h5 b6 a5 b7 b3 e6 h3 e7 h4 e8Q d6 e5 h2 e6 a4 e7 a3 Qh5+ Nd5 Ke4 a2 Rf8 f6 g8R h3 Nf3 Ra3 Nc3 Ra8 Rg4 Ra3 Nh4 Na6 b8Q Nb4 Rf7 Qd7 Ng6 Nc6 Rh4 Ra5 Qh7 Qb7 Qd7 Nc7 Kf5 Nb5 Ne4+ Kd4 e8Q Qc7 Rb1 a1N c5 Qb7 Qc7 Nb8 c6 Rg8 Nh8 Rg1 Bc4 Rd1 Ng5+ Kc3 Kg6 Kd2 Qed8 Qa8 Bf1 Ke1 Qh6 Qa7 Kg7 Qe3 Kh7 Qf4 Qb6 Nc7 Q8e7+ Re5 Qg7 Nb5 c7 Bb7 c8Q Bg2 Rg1 h1Q Qcc5 h2 Rh6 Bb7 Rg4 Bc8 Rgh4 Qhf3 Bc4 h1B Be2 Na7 Ba6 Bg2 Qdc7 Nb5 Qed7 Qa8 Qg8 Kf1 Qge8 Qaf3 Rc1 Rd5 Qee3 Re5 Rh2 Qa4 Rc4 Qb4 Rch4 Qbf4 Rh1+
1Qq3N1/B3bB1q/2Q2rb1/N2N1Q1p/2N2nn1/Pp2p2R/2b2kq1/N1K2Q2 b - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 axb4 e4 f5 exf5 g5 f4 Ra4 f6 Kf7 f5 Ke8 a3 Ra8 h4 Be6 g4 Kd7 Ra2 Ke8 Rc2 Bd7 Rc4 Bc8 Rf4 gxf4 g5 Ra5 g6 Rc5 Qc2 b6 Qd1 b5 Rh2 Rc3 Rh3 Rg3 Rh1 Rg5 hxg5 Qd6 Rh2 Qd7 Rh1 Qd8 d4 Kd7 Kd2 Kd6 f7 e5 f6 c5 g7 h5 g6 b3 Rh3 f3 Bc4 b2 Ne2 f2 Qh1 Nh6 g8N f1Q g7 e4 Ne7 b4 g8N Qg2 Kc2 Qe8 Be3 Qd7 Nd2 b1B+ Kc1 Bc2 Bb3 Nc6 Nc4+ Kc7 Qf1 Ne5 d6+ Kb7 d5 Nhg4 Bf2 Ng6 Nd4 Nf4 Bg1 Qf5 d7 Rh6 d8Q Qh7 d6 Bf5 d7 Bg6 Nd5 Be7 f8Q Ka7 f7 e3 Qde8 Kb7 d8N+ Ka6 N8c6 Kb7 Ncb6 c4 Bh2 c3 Nc4 Ka6 Bg3 Kb7 N6a5+ Ka6 Ndc6 Kb5 Ba2 Kc5 Nb3+ Kb5 Na1 Kc5 N6a5 Kd4 Qb5 Ke4 Qfb8 b3 f8Q Nh2 Bb1 Ng4 Qe1 Kf3 Qc6 Bge4 Qg1 Rf6 Qfc8 Bg6 Qf5 Ke2 Qh1 Ne6 Bc7 Nf4 Bb6 Kf2 Ba7 Qf3 Ncb6 Bf7 Qcd7 Bd1 Qfe5 c2 Kb2 Qf5 Qdb7 Qc8 Qc6 Qg2 Nbc4 Be8 Kc3 c1Q+ Bc2 Qd2+ Kb2 Qe2 Kc1 Qd3 Qee6 Qh7 Bg6 Bc2 Qf5 Bd7 Be8 Be6 Qd1 Bf7 Qdd3 Bg6 Bf7 Qd8 Qd1 Qc8 Qf1+
2b1rN1Q/3N1q1Q/1KnNP3/1QR2n2/qQ1q1b2/BBp4p/1n2N2p/k4Q2 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 e5 c4 Bh3 cxd5 Be6 f4 exf4 h5 Bh3 Ra3 Bc8 g4 a5 h6 Bb7 Rah3 Ra6 Rh4 gxh4 g5 Bc8 g6 Ra8 Qb3 Nf6 Qc2 Rg8 Qd1 Rg7 hxg7 Ng8 Rh3 Bf5 Rh2 Bc8 Rh1 Qd7 Nc3 Bc5 Qa4 Na6 Bb2 Bb7 Qb3 Kd8 Ne4 Nh6 Nh3 Rc8 Ng1 Nb8 Bc1 Ke7 Nd6 Rh8 Qc2 Bc8 Nc4 Qd8 Na3 Ng8 Nb1 Ke8 Qd1 Bf8 Kf2 Ke7 d4 Kd6 e4 f5 b6 h5 e5+ Kd7 b7 c5 b5 c4 d6 Ke6 b6 Kd5 d7 a4 Na3 c3 Ne2 h3 Nc4 h2 Ba3 h4 Nd6 f3 Ke3 Qe7 d8N f2 Ne6 Nh6 g8N Qd7 g7 Nc6 b8Q f4+ Kd3 Qa7 b7 Nf5 Qb1 Be7 Nf8 Bg5 e6 f3 Rg1 Be3 Rg5 h3 Bg2 Bf4 Qf1 Bd7 Qe8 Bc8 b8Q Qf7 Qb4 Qd7 Qe1 f1N Qc1 Nd2 Qf1 Qa7 Bh1 Nc4 Rh5 Nb8 Qeb5+ Qc5 Nh6 Nc6 Nhf7 Rg8 Ne5 Rh8 Ned7 Rg8 Bc1 a3 Bb2 a2 Ba3 Rh8 g8Q a1Q Qh7 Nb2+ Kc2 Qb1+ Kb3 Qe4 Bg2 f2 Rg5 Nc4 Ka4 Rg8 Qa6 Qa7 Kb5 Nb2 Qb7 Qa4+ Kb6 Rg7 Bf3 Re7 Bg4 Re8 Bh5 Qe5 Bg6 Ng7 Bc2 Nf5 Rh5 Qe4 Qa6 Qd3 Bb3+ Qc4 Nf7 Ke4 d5 Kd3 d6 Kd2 Qab5 Qd3 Bd5 Kc2 Ba2 Qd1 Bb3+ Kb1 Rg5 Ka1 Rh5 Nh4 Rc5 Nf5 Nf6 Be3 d7 Bd2 d8Q Bf4 Qg2 f1Q Nd6 Qd2 N6d7 Qd4 Qf6 Qf3 Qfh8 Qh5 Qf2 Qf7 Qf1+
BR3KR1/6np/1Bn4B/2N3Pq/B1p1bkp1/1Q2R3/3Qq1qr/2Rrr1R1 b - - 0 1 legal: proof: d4 b5 c4 e5 a4 f5 axb5 d5 cxd5 Nh6 g4 fxg4 d6 Ng8 h4 g5 d5 g3 Na3 g4 Nc2 Bh6 Nd4 Bg5 hxg5 exd4 Kd2 Kd7 Kd3 c5 Kc4 a5 b4 d3 e4 d2 f4 g2 b6 a4 e5 a3 b5 a2 b7 Qc7 b6 Ra3 e6+ Ke8 e7 Kf7 e8B+ Kg7 d7 Rh3 d8Q Re3 f5 Rb3 d6 Rd3 d7 Ra3 Kd5 c4 Ke6 Ra5 f6+ Kf8 f7 Kg7 Ne2 Kg6 Ng3 g1R Qb3 d1Q Ne4 Nf6 Ke7 Kf5 f8B Nh5 Bg2 Qd5 Be3 Rd1 Rg1 Ng7 Nc5 Qh2 Rc1 a1Q Bf2 Qf3 Kf7 Nc6 b8R Qa4 b7 Qa2 Ra8 Ra7 b8R Kf4 Qa5 Ra6 d8R Qfe2 Rd3 Bf5 Re3 Be4 Qd2 Qc2 Bd7 Ra2 Bf3 Nd4 Ba4 Nc6 Be7 Re8 Bf8 Qh5+ Kg8 Nf5 Bg2 Re6 Bh6 Ng7 Kf8 Rb2 Bh1 Re7 Be1 Qg2 Bh4 Qd3 Bf2 Qe2 Rf1 Na7 Na6 Bc6 Rec3+ Qe3 Re8 Re4 Rg1 Qgh2 Qd4 Rf1 Kg8 Qeh3 Rab8 Rd1 Qd7 Ra2 Bb6 Ree1 Nc5 Qf3 Rec8 Q2h3 Re8 Rh2 Rce3 Qe2 Qd2 Qg3 Be4 Qgg2 Bd5 Bb5 Bb7 Bc6 Ba8 Be4 Rec8 Nc6 Re8 Qh4 Kf7 Qhh3 Rg8 Qh5+ Kf8
1RB1B2n/1rQ2p2/N2Q2B1/1N1qqQBQ/2p3Q1/K2P4/b2p2rr/q4kn1 b - - 0 1 legal: proof: g4 d5 a4 e5 c4 dxc4 Nc3 b5 axb5 h5 gxh5 e4 Nb1 e3 f4 Kd7 b4 Na6 d3 Bc5 Ra2 Bf8 Rd2 exd2+ Kf2 Bd6 e4 Ke7 e5 Kd7 e6+ Ke8 Ke2 Be5 fxe5 Nb8 h4 Ke7 h6 a5 h7 g5 h5 c5 b6 a4 h6 a3 b7 g4 b5 a2 b6 a1Q Bb2 g3 Nh3 c3 Bg2 c2 Be4 c1R Nc3 c4 Nf4 g2 Nfd5+ Ke8 e7 Kd7 e8B+ Ke6 Bg6 g1Q Nc7+ Ke7 e6 Kf6 e7 Kg5 Bd7 Kf4 e8B Kg3 N3b5 Kg2 Na6 Qh2 Bf6 Nc6 b8Q Rc3 b7 Nge7 Qc7 Rb3 b8Q Ne5 Bg5 Nf3 Be6 Bb7 Bc8 Qd5 Qd6 Rb2 Qbc7 Bc6 Rf1 Rg8 h8Q Ng1+ Ke3 Rb1 h7 Rb8 Qc3 Rb7 h8Q Bd7 Qcg7 Bg4 Qd4 Qhe5+ Qe4+ Bf3 Qh5 Rc1 Bh7 Ng6 Re1 Nh8 Bg6 Qg7 Qf5 Qgc3 Qa4 Bd1 Qaa5 Bb3 Qhg4+ Kh1 Rf1 Ba2 Rd1 Rb1 Rc1 Qg7 Rc2 Rf1 Rb2 Rf2 Rb3 Rh2 Rb4 Qc6 Rb2 Qd7 Ke4 Qc3 Kd5 Qe6+ Kc5 Qce5+ Kb4 Q6d5 Ka3 Rg7 Qh5 Kg2 Qfg4+ Kf1 Nd4 Ra7 Rb8 Rb7 Qac5 Rh7 Nb5 Rg2 Bf4 Rh6 Qhf5 Rh3 Qfh5 Rhh2 Bg5 Qde4 Qcd5 Q4d4 Qde4 Qdd5 Qef5+
3BB1K1/2p2n2/2b1rrR1/2p2qP1/R2n4/qRB1B1k1/pnB1rN1Q/R2Q4 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d6 exf5 Bd7 c5 dxc5 f6 Bc8 g4 Nc6 f4 Kd7 h4 Ke8 f5 Qd3 Nc3 Bd7 Nd5 Bg7 Nf4 gxf4 g5 Nb8 g6 Bc8 Ra6 Bh6 Ra1 Bg5 hxg5 Qd8 Kf2 Kd7 Kf3 Kd6 Kg4 Ke5 Kh5 a5 b4 a4 d4+ Ke4 f7 e5 f8R a3 d5 f3 b6 a2 d6 f2 b5 h6 d7 Ba6 f6 Bb7 f7 Ra6 g7 Nc6 Kg6 h5 Be3 h4 Nh3 Nh6 g8B Nd4 Kg7 Qc8 d8B Bc6 b7 Qf5 b8R Rb6 Bc4 f1R Bb3 Rf2 Re1 Re2 Bc2+ Kf3 Nf2 h3 Bh7 h2 Bg6 h1N Rg8 e4 f8B Kg3 Be8 Nf7 Rf1 Ra6 b6 Rh6 b7 Re6 Ra8 Rf6 b8Q Rb6 Ra4 Ra6 Ng4 Nf2 Qb2 Nd3 Nf2 Re6 Bfe7 Rb6 Bf6 Ra6 Bc1 e3 Kf8 Rb6 Rg6 Ra6 Kg8 Rb6 Qb3 Nb2 Bh8 Rd2 Qd5 e2 Qh1 e1Q Qh6 Rde2 Be3 Qc3 Qh2+ Kf3 Rg1 Qa3 Rg4 Rf6 Rb4 Ra6 Rb3 Nb5 Ne4 Bd5 Kg7 Rae6 Kg8 Bc6 Rg7 Rh6 Nf2 Rhg6 Ra4 Rh6 Rh7 Rhg6+ Bg7 Rh6 Be5 Rhf6 Bc3 Nd4 Rh8 Qg4 Rh6 Qf5 Qhh1+ Kg3 Rg6 Nb5 Qh5 Nd4 Qh2+
R3Q3/1BnN1p1n/rQp3b1/2b1Knp1/1qN4N/1PN4k/1N1R3Q/2bn3Q b - - 0 1 illegal: No possible last move, all moves rejected
2rQ2KN/1n3Q1Q/1B1Nqpp1/n1n5/bqQ3Qp/B1R2P1n/N3rk2/1N6 b - - 0 1 legal: proof: d4 d5 a4 b5 axb5 g6 e4 Bg7 exd5 Nh6 c4 Be5 c5 Bd6 cxd6 Ng8 h4 g5 b4 Qd7 h5 Qd8 Ra3 Nh6 Rah3 Ng8 Rh4 gxh4 g4 Nh6 g5 Kf8 g6 Ng8 g7+ Ke8 Bd3 Bg4 Bc2 Bc8 Bg6 hxg6 Kd2 Kd7 Ke3 a5 Kf4 c5 Ke5 a4 h6 e6 b6 a3 h7 a2 b7 a1N b5 c4 b6 c3 Rh3 c2 Rc3 Nb3 Ba3 c1N Ne2 Nh6 g8Q Qf8 Kf6 Nc6 b8Q e5 b7 e4 Qa7 Nd3 Nc1 e3 Qg4+ Nf5 f3 e2 Na2 e1Q b8Q+ Bb7 Qa4 Nbc5 Qba7 Nf2 Qc4 Rc8 Qg7 Rg8 h8N Na5 Qh6 Nh3 Qh7 Kd8 d7 Kc7 d8B+ Kd6 Bb6 Bc6 Qb7 Ba4 Qa7 Qfe8 Qb7 Qb5 Qa7 Rge8 Qb7 Ne7 Kg7 f6 Qa7 Nec6 Qb7 Nd8 Qf7 Re7 Kf8 Qe6 Kg8 Kd7 d6 Kc6 d7 Ndb7+ d8N+ Kd6 d5 Ke5 d6 Qb4 Qf1 Kd5 d7 Ke5 Qgh5+ Kf4 Qc4+ Kg3 Qhg4+ Kf2 Kg7 Nd6 Nb7 Qf5 d8Q Re2 Kg8 Qe6 Qd5 Ndc4 Nd6 Nb7 Qde4 Nca5 Qc4
NQ2N1k1/3bQNn1/1nR1rQrp/1N3b2/q1r3Bp/p1P4K/2p1QQ2/4B3 b - - 0 1 legal: proof: h4 c5 e4 g5 b4 gxh4 bxc5 f5 exf5 b5 a3 b4 Nc3 d5 Bb2 b3 Nb1 d4 Ra2 d3 Bc1 Bg7 Rb2 Be5 c3 Bc7 Ra2 Ba5 Rc2 Bb4 axb4 dxc2 g4 Kf7 d4 a5 f4 a4 Kf2 b2 Kg2 Ra7 c6 Rc7 f6 Rd7 f5 Bb7 d5 Qe8 g5 Ba6 d6 Nh6 g6+ Kf8 f7 Bb5 c7 Bc4 c8N Rg8 b5 Bd3 b6 Ng4 b7 Nc6 b8Q Rh8 Qe2 Nb4 Nh3 Rc7 d7 Na2 d8Q Nh6 Bd2 Rc4 Na3 b1B Nb5 a3 Ng5 Rg8 Be1 Nb4 Nb6 Nd5 Na8 Nb6 Kh3 Ba2 Qd7 Kg7 f8Q+ Kh8 f6 e5 f7 e4 Qde7 e3 Rg1 Nf5 Qf6+ Ng7 Q8e7 h6 f8Q Be4 Qff2 Bd3 Q8f6 Bf5+ Rg4 Bb3 Bg2 Ba4 Bf3 Be4 Rf4 Bf5+ Bg4 Qd7 Rd4 Qa7 Rd6 Qa6 Nd4 Bad7 Rc6 Qa7 Nb5 Qa4 Qef3 e2 Q3g2 Rc8 Nf7+ Kg8 Qge4 Ne8 g7 Rd8 Bd2 e1R Qee2 Rg1 Be1 Rc8 Re6 Re4 Rd6 Rcc4 Rc6 Re6 Qfc5 Kh7 g8N Ng7 Qcf2 Bd3 Bh5 Rg6 Bg4 Bf5 Q6d4 Nh5 Nf6+ Kg7 Ne8+ Kg8 Qde5 Ng7 Q5f6
6bR/nn2q2p/1K1RpQ2/7Q/QprRR1q1/1bp5/2BQ1PR1/NNkr4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 Bg7 h5 Bh6 Bb2 Bf8 g4 Kd7 h6 Ra6 Bf6 Bg7 hxg7 Nh6 g8R Qf8 Be5 Ra5 Bg3 Qd8 Bh4 gxh4 g5 Ra8 g6 Ng4 g7 Nf6 Ke2 Kd6 Kd3 Ke5 Kc4 Ke4 Kc5 b5 d4 c6 a4 b3 a5 b4 d6 h3 a6 b2 d5 e6 d7 h2 d6 Bb7 a7 Qe8 d8Q Qe7 Ne2 Ne8 Kb6 c5 f6 c4 d7 c3 f7 Nc6 f8Q Nd6 Nd4 Rc8 a8Q Na7 Qh5 Bd5 Qf6 Nb7 Ra6 Bb3 Nc2 Rc4 Bh3 Kd3 Re1 h1Q Re4 Qg2 Na1 Qg1 Bf5 Qg4 Re8 Rf8 g8R Rf7 Rh8 Rg7 Reg8 Rf7 Na3 Kd2 Nb1+ Kc1 Bg6 Rg7 Bf5 Rg5 Bg6 Rd5 Bf5 Qh4 Rg2 Rd1 Bg6 Nc5 Qc6 Nb7 Qa4 Qg5 Qe8 Qg4 d8R Qe2 Rdd4 Qg4 Nd2 b1B Qd8 B1c2 Nb1 Bd3 Re3 Be2 Bc2 Bd3 Qdd5 Bg6 Ree4 Bf7 Qdg5+ Kb2 Qd2 Bg8 Ra5 Rf1 Rad5 Rd1 Qd3 Kc1 Rd6 Qf7 Qe2 Qe7 Qd2+
4NnRr/1NqQnr2/7p/4BN2/N2PppQ1/k1p1b3/nr2Q3/1Q1N1KR1 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 axb5 fxe4 c4 g6 cxd5 Nh6 f5 Ng8 g4 Bd7 f6 Bg7 Bh3 Bf8 g5 Be6 Bf5 gxf5 h3 Bf7 Ra4 Bh5 Ra1 Bg4 hxg4 Qc8 Nc3 Qd7 Nb1 Qd8 b4 Kd7 d4 Kd6 g6 a5 b6 c5 g5 e5 b5 e3 f7 e2 b7 a4 b6 h6 g7 e4 g6 a3 Nh3 a2 Nf2 c4 Rg1 Nc6 b8Q+ Qc7 b7 Nb4 Qe8 Ra7 b8Q Nf6 g8Q Bg7 f8N Nc6 Ne6 Nh7 Nc3 Ng5 Qb1 Be5 g7 Nh7 Bf4 Ne7 Na4 c3 Qdd3 Nf8 Nd1 Rb7 Qef7 Kd7 d6 Kc6 d7 Rb2 d8N+ Kd5 Qf3 Kc4 Nb7 Kb3 Qe3 Bf6 Be5 Ka3 Qe8 Bg5 Qd7 Bf4 Kf2 e1N+ Kf1 Nc2 Qe2 Nb4 Rg2 Qd6 Nc7 Be3 Ne8 f4 Qge6 Qc6 g8N Qc7 Q6g4 Kb3 Qbc2+ Ka3 Rc1 a1R Qb1 Neg6 Ne7 Na2 Nf5 Ne7 Qg8 Rb6 Rg3 Rf6 Qgg4 Rf7 Qbb5 Rb1 Qbd3 Rb2 Qb1 Nd5 Rg1 Rd2 Rc2 Ne7 Rb2 Rc2 Rb6 Rd2 Rg6 Rb2 Rg8
1QnqN3/2q1Rr2/5k1p/4N1pK/2nn2R1/1B1pNPp1/1NR4R/r1b1Q2R b - - 0 1 legal: proof: g4 e5 d4 g5 a4 b5 axb5 c5 dxc5 f6 Be3 Ba6 Bd4 exd4 h3 Bb7 h4 Be4 h5 Bg6 hxg6 f5 Qd2 fxg4 Qd3 Ke7 Qd1 Ke8 e4 Ke7 Ke2 d5 c4 a5 b4 a4 e5 a3 g7 g3 Kf3 d3 Kg4 d2 c6 a2 b6 h6 b5 d4 e6 Qc8 b7 Nd7 b8R Rh7 c7 Qd8 c8N+ Kf6 c5 Ra3 e7 Ke5 e8N Be7 b6 Re3 c6 Ba3 c7 Rc3 b7 Rc2 Nf3+ Ke6 Ne5 Nf8 f3 Bc5 Nc3 Qd7 Ncd6 Ba3 c8R Bc1 Na4 Qd8 Qe1 d1N Nb2 Ne3+ Kh5 Ne7 g8R Rf7 Rg7 Nc4 Nf5 d3 Ne3 Rf2 Be2 Rf1 Bd1 Rg1 Rb1 a1Q Bb3 Qaa5 Rh2 Qac7 Ra8 Rf1 b8Q Rh1 Ra4 Rg1 Nd6 Kf6 Rh7 Ne6 Rb4 Na3 Rg4 Nc4 Rg7 Nd4 Rh7 Qcd7 Rc5 Nc8 Rc6 Na3 Rcc2 Q7c7 Rg7 Rf8 Re7 Rf7 Rh1 Nc4 Rch2 Bd2 Rc1 Rf1 Rc2 Rg1 Qf2 Ra1 Qe1 Bc1 Ne8+
1qNQ3R/3K1NpB/2PpnB1B/2qN4/1rb1n1N1/2Np2rQ/1kp5/5nB1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 h5 g4 f5 gxh5 Nf6 exf5 Ng8 a3 Qc7 Ba6 Qb6 Bf1 Qd8 c4 e6 b5 b6 c5 Ne7 c6 Ng8 Ra2 Qg5 Rc2 Bb4+ axb4 Qd8 Rc5 bxc5 Ke2 Ke7 Kd3 Kd6 Ke4 a5 f4 d3 h4 a4 h6 a3 h5 e5 b6 c4 b5 Kc5 b7 Kb4 Kd5 a2 Kd6 a1Q f6 e4 f5 c3 h7 c2 b6 Kb3 f7 Ra2 f8N Qdf6+ Ne6 Qf7 f6 Ra6 h6 Qe8 f7 Ra2 f8N Qf6 Nh3 Ra7 Nf2 Ra8 Nc3 Ra1 Ng6 Ra2 Ng4 Rb2 Ne7 Na6 b8B Nc5 b7 Qf2 Ba7 Nf6 b8B Ba6 Nc8 Bc4 Nc7 Ne6 N7d5 Ka3 Bce3 Rb4 Qf3 Rf8 h8Q Kb2 h7 Qg1 Bh6 e3 Bg2 e2 Qh3 e1N Be4 Nf3 Bc7 Qf2 Bd8 Nd2 Qg8 Rf7 h8N Nf1 Bh7 Re7 Nf7 Qc5+ Ke5 d6+ Kf5 Qb5 Bg1 Qc5 Rh2 Ne4 Rh1 Ra7 Bf6 Ra1 Qh8 Qd8 Qf8 Qc7 Qd8 Qb8 Rh2 Re1 Rh1 Re3 Rh2 Rg3 Rh1 Nf4 Rh2 Ng2 Ke6 Nf4+ Kd7 Ne6 Rf2 Rb3 Rf5 Rb4 Re5 Nc7 Re8 Ne6 Rh8
6bR/1RR2Q2/1n2Kb2/5Qpb/2B2qpb/2B1p2k/np2Pr1N/R3Q1QR b - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 g4 b5 Nc3 b4 Ne4 f5 gxf5 Ra7 Nf6+ Kf7 Ng4 hxg4 Bg2 Ke8 Bf1 Rb7 b3 Rb5 axb5 a4 Ra3 axb3 Ra5 Na6 Ra1 Nb8 d4 Kd7 Kd2 e5 Ke3 g5 Ke4 c5 h4 c4 f4 b2 f6 b3 Kf5 c3 d6 e4 h5 b1B f7 b2 d5 c2 b6 e3 h6 Be7 f8Q Na6 h7 Ba2 b7 Qa5 b8R Bb3 Qe1 Qa2 Bd2 c1B Bc3 Bd2 Bg2 Nb4 Nf3 Qa7 Nh2 Qd4 Qf7 Nf6 Qg1 Rd8 h8R Be1 Rb6 Qc4 Rb7+ Qc7 Ke5 Rf8 f5 Bh4 Be4 Na2 Bd3 Bc2 Bc4 Bb3 Rb5 Ba6 Rb7 Bb5 Rh7 Ne4 f6 Nc5 Kf5 Na4 Ke5 Nb6 Rg7 Kd8 Ke6 Be8 d7 Qg3 Rb8+ Kc7 d8R Qf4 d6+ Kc6 d7 Kc5 Rb7 Kc6 Qg8 Bh5 f7 Bf6 Re8 Kc5 d8Q Kc6 Qdd1 Kc5 Bd2 Kd4 Bc3+ Ke4 Rc7 Qf2 Rh7 Kf4 Qde1 Qf3 Rh8 Qg3 Ree7 Qf2 Qgf1 Kg3 Qg1+ Kh3 Rb7 Qf4 Rec7 Rd8 f8Q Rd1 Qef2 Rf1 Qe1 Rf2 Qc5 Bc2 Qa5 Bh7 Qf7 Bg8 Qf5
krrbN1Q1/2pQn3/4QR1n/2RRQP1q/3r1Q2/2K1BpR1/r1p1B2p/8 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 g5 f4 d5 a4 dxc4 axb5 Be6 f6 Bc8 g4 Nh6 f5 Nd7 Nc3 Ng8 Nce2 Bb7 Nf4 gxf4 g5 Bf3 h3 Bg4 hxg4 Nb8 d4 Kd7 Kd2 Kc8 b4 Kb7 b6 h5 b5 a5 d5 e5 g6 e4 f7 a4 d6 f3 g5 h4 g7 e3+ Kc3 e2 d7 e1R g6 a3 Nh3 a2 Nf4 h3 Nd5 h2 Be2 Ba3 f8R Nc6 Rf6 Rg1 Be3 Nce7 Rc1 Qf8 d8R Rf1 Rg1 a1R Rg3 Nh6 g8Q Bd6 g7 Rb1 Qe6 Rf2 g8Q Nf7 Qg4 Rb4 Qf4 Raa4 Qdd4 Bc5 Qde5 Nh6 Rd7 Kb8 b7 Qe8 Rd6 Ka7 Rc2 Qh5 b6+ Ka6 b8Q Rc8 b7+ Rb6 Bf1 Ra2 Rc1 Rfd2 Be2 Rd4 Rc2 Nc6 Rd7 Be7 Rc1 Bd8 Qa7+ Kb5 b8Q Ne7 Qab7 Ka5 Qbc6 Ka6 Qcd6 Rc6 Qb3 Ka7 Qg8 Rc5 Qde6 Rc6 Qb5 Rb6 Rd6 Rbb8 Qbd7 Kb7 Rb6+ Ka7 Rb5 Ka8 Rc5 Rb5 Rd1 Rb1 Rf7 Rbb2 Nf6 Rbb8 Ne8 Ra6 Kc2 c3 Rf6 Ra3 Ra1 Ra7 Raa5 Ra6 Rab5 Ra2+ Kb3 c2 Kc3 Qh3 Rd5 Qh5 Rbc5
3nQ1N1/5n2/N2N1b1B/ppq2Rp1/4QPN1/k2b4/B1pBp1NK/B5rn b - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 f5 exf5 c6 a4 c5 b4 cxb4 a5 Rh6 Be2 Rh7 Bf1 Rh8 c4 d5 c5 a6 Ra2 Ra7 Ra3 Rb7 Rc3 Rb6 axb6 a5 Rc4 dxc4 f4 Kd7 Kf2 Kc6 Kg3 e5 d4 g6 h4 e4 h6 e3 h7 b3 f6 c3 d5+ Kb7 f7 Ka6 h5 c2 b7 b2 h6 Bd6 f8B Qf6 c6 Qc3 c7 Qa3 Bd2 Bh3 c8N Qb3 Nf3 Nc6 b8N+ Kb7 Nh2 Qa4 Qe2 Qa2 Nc3 b1N Na6 Nb8 Ne7 Kb6 Nd1 Bf5 Ng4 Nc3 Rh5 Bd3 Kh2 Ne4 Rf5 Be5 d6 g5 d7 Ng3 d8N Nh1 Nb7 Nc6 Nd6 Qc4 Qg2 Bb2 Qe4 Qc5 Bg2 e2 Nde3 Bf6 Bf3 Bb2 Ng2 Nd8 Bg7 Nf6 Ng8 Ne8 Qa4 Be5 Bd5 Bf6 Ba2 Kc6 Qe4+ Kb6 Nb7 Nd6 Bf8 N6f7 Nd6 Qf2 Bg7 Qc5 Ne7 Re8 Ng8 Re7 h8B Rd7 Nb7 Rd4 h7 Rb4 Bh6 Rb1 Nd6 Rg1 Nc7 Qe5 B8g7 Kc5 h8Q Qd5 Ne7 Qe5 Qe8 Qd5 Ng8 Qe5 Bd5 Qc3 Bc4+ Kb4 Na6+ Ka3 Ba2 Qc5 Bh8 Be7 Bhc3 Bf6 Ba1
3RnN2/pNpR1k2/R2pNb2/3Np3/N3p1rQ/R1Q5/qn2KP2/1Br4q b - - 0 1 illegal: No proof kernel
4Rq1n/2npB2q/1r2RrBB/BQ3Rq1/3P4/R2n1k1q/1bNB2b1/1KQb4 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Nc3 Qc7 Na2 Bg7 axb5 Bh6 b6 Qd8 b5 Bf8 Nb4 cxb4 g4 Kf7 d4 Kf6 Kd2 Kg5 c4 Kf4 f3 e5 f6 h5 c5 a5 g5 e4 Kc2+ e3 b7 b3+ Kb1 h3 g6 h4 f7 h2 c6 b2 g7 a4 b6 h3 c7 a3 Ka2 Na6 b8Q Qg5 b7 Ne7 g8R Ng6 Bd2 Rh6 Bd3 Nh8 Qc1 Rb6 Rg6 Be7 Kb1 a2+ Kc2 Bf8 Re6 Ba3 f8B Kg3 f4 e2 f5 b1B+ Kc3 e1N f6 Kg2 f7 Bc2 Be7 Bd1 Bg6 Nd3 f8B Kg3 Bh6 Bb2+ Kc4 Kf2 Nf3 Kg2 Rhe1 h1Q Rf1 h2 Ne1+ Kg3 Ba5 Qe4 Bd2 h1Q Nc2 Qh3 Rf8 Qef4 Rf5 Kf3 Ba5 Nab4 Kb3 Raa6 Rc5 Qf8 Rf5+ Kg3 Qa7 Kg4 b8B Bb7 c8R Bg2 Bf4 Kf3 Qb8 Nd5+ Beb4 Nc7 Rce8 Rc6 Be7 Rd6 Qb5 Rdb6 Rb1 a1Q Bfd2+ Kg4 Bab4 Qa5 Ra1 Qgh4 Ra3 Qh5 Bhe3 Qh7 Ka2 Kg3 Bf4+ Kf2 Kb1 Kf3 Qc4 Qe5 Qb5 Qef6 Ba5 Qg5 Re2 Rf6 Re1 Rab6 Re6 Qgg4 Bh6+ Qf4 Rfe5 Qg5 Rf5+
1brB3k/qpq1R2n/2Q3BB/1b2nrNq/1B1r3B/Q1r5/NP3N2/4b1NK b - - 0 1 illegal: No proof kernel
r2R4/2r1RbNB/q2p2B1/3R4/1K1Q1b1R/Q1BP1n2/1br1r1Bb/Bkr3n1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Nc3 Qc7 Na2 Bg7 axb5 Bh6 b6 Qd8 b5 Bf8 Nb4 cxb4 f4 Kf7 c4 Kf6 g4 h5 b7 a5 b6 e5 c5 h3 c6 e4 c7 d6 d3 e3 Be2 h4 Rh2 b3 Rg2 h2 Nf3 h1R+ Bf1 h3 Nh4 h2 Ra4 e2 Kd2 b2 Kc3 e1B+ Bd2 b1R Re2 Rb2 Qc1 Nc6 b8Q Ne5 b7 Bg3 Bg2 Nh6 Qa7 Nf3 b8R Rh7 Rb5 Be6 c8B Bf7 Re7 Qb6 Rd5 Re1 Rb4 Ra2 Qa3 Qa6 Qd4+ Re5 Rc4 a4 Kb4 h1R Bc3 Rc1 Ba1 Bh2 g5+ Kg7 g6 Kf6 g7 Rac2 g8B Ng1 Bd7 Ng4 Be8 Bh6 Bc3 Rg7 Bh7 Bg5 Ng6 Bh6 Nf8 Bg5 Ne6 Bh6 Qb2 a3 Qb3 a2 Qa3 Nf2 Ba1 Ne4 Bc3 Ng5 Ba1 Bg8 Beg6 Rf7 Ng7 N5f3 Rb7 Rc7 Ra7 Ke7 f6+ Kd7 f7 Ree2 f8R Bf7 f5 B6f4 Bc3 a1B f6 Bb2 Rb8 Be8 f7 Ke7 Nf5+ Ke6 f8B Bf7 Rc8 Ra1 Rd8 Rac1 Re5+ Kf6 Rd5+ Kg5 Bh6+ Kg4 Ng7 Kg3 Qf6 Kf2 Bg5 Ke3 Bh4 Red2 Qd4+ Ke2 Bg5 Kd1 Bf6 Re2 Rb7 Rcd2 Be5 Kc2 Ra7 Kb1 Rb7 Rc5 Re7 Rc7 Qf2 Be3 Rh4 Bef4 Qd4 Rdc2 Qe3 Ba1 Be1 Bd4 Bf6 Bb6 Ba1 Bd4 Bd2 Bb2 Qd4 Re4 Be1 Ree2 Bc3
2r4b/Q1kB3b/b2n1Q1p/3r1QR1/2bQnK2/BN3QrP/Rn1nB1q1/5B2 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Nc3 f3 Nd5 d6 Nf4 d5 cxd5 gxf4 Kf2 Kd7 e4 c5 g4 a5 b4 f5 d4 a4 b6 h6 g5 a3 b7 a2 g6 c4 h3 c3 e5 c2 e6+ Kd6 e7 Ra3 e8B Qg5 g7 Nd7 b5 Ne7 g8B Nc5 b6 Bg7 Bd7 Rb3 Ba3 c1N Ne2 Qg2+ Ke1 f2+ Kd2 f3 Rg1 Rb5 Ke3 Nd3 Nc1 Nb2 Kf4 Bf6 Be2 f1N Nb3 f2 Qd3 Nd2 Qf3 f1B Bge6 Qf2 Rg5 Qg2 Bf7 Rd8 Bfe8 Ra5 Bdb5 Be6 Bed7 Bh8 Bbc4 Rc8 b8Q+ Rc7 b7 Nc8 Bcb5 Bg8 Qa8 Bh7 Bbd3 Rc6 b8Q+ Rc7 Qb5 Rc6 Rg6+ Kc7 Rg5 Nce4 Qc5 Ncd6 Qc2 Kb6 Bc4 Rc8 Qcd3 Ne8 d6 Rac5 d5 Ra5 Rc1 a1R Rc2 Rac5 Bcb5 Rc3 Ba6 Rd1 Bab5 Nbc4 Ra2 Nb2 Qb1 Re3 Be6 Rec3 d7 Kc7 Qbd3 N8d6 Qd4 Rd3 Qa5+ Kb7 d8Q Kb8 Bed7 Kb7 Qg4 Rg3 Q8f6 Kb8 Qac3 Kb7 Qcf3 Kc7 Ke5 f4 Qf5 Rg8 Qh5 f3 Kf4 f2 Qf3 Rc8 Bbd3 Ne8 d6+ Kb8 Be6 Kb7 d7 Kc7 Bb5 N8d6 d8Q+ Kb8 Qe8 Kc7 B2c4 Bd3 Bed7 f1B Ba6 Bde2 Bcb5 Bc4 Qg8 Bd5 Be2 Bb7 Bab5 Ba6 Qgd5 Rc1 Qa8 Rc5 Bd1 Bc4 Be2 Bcg8 Bbd3 Bgc4 Bf1 Re5 Bde2 Rd5 Qaa7+
2qNNBB1/2n4n/nqr3b1/4Kn2/1p3rB1/QPQ1N1kB/1N1bq1q1/3R3N b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 b3 gxh4 Nc3 a5 Rb1 a4 Rb2 a3 Rh2 axb2 a4 Bh6 Rh1 Bf8 Ke2 Kd7 Kf3 Kd6 Kf4 b1Q d4 c5 g4 b5 g5 h5 a5 e6 a6 c4 a7 h3 g6 h2 g7 h4 f6 h3 f7 Ne7 g8B Na6 Qc2 Rh6 Nd1 c3 Ne3 Qb6 f3 Bg7 f8N Qb2 Nh7 e5+ Ke4 Rg6 f4 Bh6 f5 b4 f6 Bd7 f7 Rf8 a8B Be8 Nf6 Bg5 Qd2 c2 Qc3 Bf4 Bd2 c1Q Bc6 Bg5 Bd7 Rh6 Bg4 Qcc2+ Qd3 Qc8 Bc1 Qe2 Qc3 Nf5 Bb2 Ng7 Ba1 Ne6 Kf5 e4 Bb2 Ke7 Ke5 Nec7 d6+ Kd8 d7 Ke7 d8N Rg6 Nd1 Bd2 d5 e3 Ne6 Rh6 Nf4 Rg6 Ke4 Kd6 Ng2 Rh6 Ba1 Rg6 Nb2 Rh6 Nf3 Rg6 Rg1 h1Q Ng5 h2 Nh3 Rh6 Kf4 Rg6 Nf2 Rh6 Ne1 Qg2 Nc2 h1N Qe5+ Kc5 d6+ Kc6 d7 Ng3 Qa5 Kd6 d8N Nf5 Qa3 Rg6 Nh5 Kd5 Ng7 Rc6 Rh1 Qg1 Bfh3 Qg2 Kg5 Ke5 Rd1 Ne6+ Kg6 Kf4 Kf6 Kg3 Ke5 Nec7 Rh1 Qef3 Rd1 e2 Ne3 e1N Bh7 Rh8 f8Q Qe2 Qf6 Bg6 Ne8 Rf8 Bg8 Rf7 Qe6 Rf6 Qc4 Rf7 Qc3 Nf3+ Ke4 Ng5+ Ke5 Rf8 Nc4 Nce6 Qc2 Qe1 Bd4 Nh7 Nb2 Ne7 Qc3 Qe2 Bc5 Rf4 Bd6 Nf5 Bf8 Nec7 Nh1+
B4q1q/B1B5/BnK1pnbR/1N4r1/1QQQP1r1/3r1p2/nb2B1qN/1k4Q1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h5 g4 Rh7 g6 Rh8 b4 Bh6 g5 Bf8 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 Kd2 a5 Kd3 d5 c4 Kd7 h4 Kd6 e4 Ke5 h5 f5 h6 g3 g7 g2 c5 a4 c6 a3 g6 f4 c7 a2 b6 a1Q h7 Ra5 b5 Nf6 g8B Bf5 c8B Nbd7 g7 Bg6 b7 Nb6 Bf7 Rg8 b8B+ Qd6 h8Q f3 Ne2 g1Q Rh6 Qh1 Nd2 Qg2 Nc3 Qb2 Qb3 e6 Be8 Be7 Bc6 Bd8 Ba7 Qf8 Qc4 Be7 Ncb1 Ba3 Be2 Qa1 B8b7 Bb2 Na3 Kf4 Ba6 Ke5 Kc2 d3+ Kb3 d4 Nf1 d2 Nh2 d1R Ba8 d3 Be3 d2 Bg5 Qc8 Kb4 Qe8 Be3 Qf8+ Bc5 Kf4 Bd6+ Ke3 Kc5 Rg1 Qa2 d1N Kc6 Kd2 Bc7 Kc1 Qb3 Nc3 Qc4 Nbd5 b6 Rd1 b7 Rd3 b8Q Nb6 Qb7 Rg5 Nb5 Kb1 Qb8 Nbd7 Qb6 Na2 Qbd4 Nb6 Qh7 Rh8 g8Q Rg4 Qe7 Rg5 Rh3 Rh4 Qed6 Rhg4 Rh6 Ba3 Qe7 Qc3 Qb4+ Bb2 Qf2 Qd4 Qg7 Qdd8 Qd7 Qh8 Qdd4 Qdf8 Qg1+
2Q2N1n/5b1R/b1NBq3/1b6/2RrkbRQ/K1pNRp2/2Pq1rb1/1N1R3n b - - 0 1 illegal: No possible last move, all moves rejected
1B1k2B1/Q1n5/1Np4p/N3n2K/1qR3QQ/N1P1q1N1/bb1Nr3/bn1Q1rb1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bf8 e4 gxh4 b4 f5 e6 Qg5 e5 Qe7 Ra3 Qg5 Re3 Qd8 Re4 fxe4 Ke2 d5 f4 a5 g4 e3 Kf3 h3 e7 d4 g5 h2 f5 d3 Kg4 h6 g6 e2 g7 e1B b6 a4 b5 a3 c3 d2 b7 a2 b6 a1B Na3 Qd6 Ne2 Qc5 Kh5 Qd5 f6 Qd3 f7+ Kd7 e8N Na6 b8Q Kd8 e6 Ne7 g8Q Ng6 b7 Bf2 Nd6 Ne5 Ndc4 Qe3 Qa7 Bg1 b8N c6 Ng3 Nc7 Nd7 Rb8 Qgg4 Rb1 Na5 Be7 Nf6 Re8 f8N Ba6 Bg2 Bc4 Bd5 Ba2 N8d7 Bd6 Qh4 Re7 Qdg4 d1N Nfe4 Nf2 Nd2 Ne4 Nb6 Bc5 Bb2 Rf1 Bc1 Bf2 Rg1 h1Q Rg2 Bg1 Rf2 Qh2 Rf4 Qhe2 Bb3 Qb5 Bd5 Nd6 Rc4 Ne4 Qd1 Qb4 Qhg4 Ref7 Qh4+ R7f6 Qhg4 R6f2 e7+ Ke8 Bg8 Re2 Nf3 Nd2 Qh4 Qd4 Qg4 Nb1 Bf4 Qd3 Nd2 Qe3 Bh7 Kf7 e8Q+ Kf6 Qeg6+ Ke7 Bg8 Kd8 Qe4 Qb3 Nc2 Ba3 Qh1 B3b2 Na3 Qb4 Qh2 Nd3 Bd6 Ne5 Qhh3 Nb5 Bb8 Nc7 Qhh4+
Q1BR2K1/b2p1r2/rnB1qR2/b4R1B/n3QRB1/pk3r2/qb1P4/4B1Nb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 fxe5 c6 Na3 Rh4 axb5 Rh5 b6 Rh8 Nb5 Na6 Nd4 Nb8 b5 c5 Nc6 Qg5 Nb4 cxb4 Ba3 Qe7 Bc1 Qd8 Kf2 Ke7 Ke3 Ke6 Kd4 f5 e4 a5 c4 g5 h4 g3 b7 f4 b6 b3 h5 a4 c5 f3 h6 g4 c6 b2 c7 b1Q h7 f2 Qe1 g2 Bb5 f1R Bc6 g3 Rh5 a3 Rf5 Na6 b8R Qf6 b7 Ne7 Bb2 Rg8 h8R Rg4 Rh4 Rg7 Rhf4 Rf3 Qe3 Qc2 Rf1 Ra7 Ra8 Rg5 b8Q Bb7 c8B Nc5 Bc3 Rg6 Ba5 Bg7 Bd8 Nd5 Qe2 Qf7 Bh4 Nb6 Rf6+ Ke7 e6 Nca4 e5 Ra6 Qe4 Qa2 Qa7 Qe8 Rb8 Bh8 Qa8 Rg7 Rf2 Rf7 R6f5+ Kf8 e7+ Kg7 e6 Qg8 Nh3 g1B Ke5 g2 e8B Bh2 e7 g1B Rf1 Kg6+ Kd6 Bb2 Be1 Bgd4 Rf2 Bdc3 Ng1 Ba5 Kc7 Kg7 Kd8 Bg3 Rf1 Bf2 Rf6 Qh7 R4f5 Qh3 Rf4 Qhe6 R6f5 Rf6 Bh5 Rf7 e8B Kf8 Kc7 Ke7 Bg4 Rh7 Beh5 Rf7 Bb5 Bd5 Bc6 Bfd4 B8b7 Be3 Rd8 Bed4 Bc8 Bc5 Kb8 Kd6 Rf2 Be3 Rf1 Kc5 Kc7 Bed4 Rf2 Kb4 Rf6 Qf5 Kd6 Kb3 Rf1 Rf8 Ke7 Rf7+ Ke8 Bf2 Qe7 Qe6 R4f5 Rg7 Kf8 Rf7+ Kg8 Rh3 Rg5 Bh1 Rgf5 Rf3 Qe8 Bg3 Qe7 Bb8 Qe8 Ba7 Qe7 Rg3 R1f4 Rf3 Qb4+ Kc2 Qd4 Kb3 Qe4
n2B4/Bbpn2Kn/kb1rQ2N/N1Q3Qr/RnPp1q1B/5Qr1/8/rB1Q4 b - - 0 1 legal: proof: d4 b5 b4 e5 dxe5 h5 a4 f5 axb5 f4 g4 hxg4 Ra3 Ba6 Rc3 Bc8 Rg3 fxg3 Qd5 g5 Kd2 a5 Ke3 a4 Ke4 g2 Kf5 d6+ Kg6 Kd7 e4 a3 h4 g3 c4 a2 f4 a1R e6+ Ke7 b6 g4 b5 R1a2 b7 Bd7 h5 R8a5 h6 Rb2 h7 Ra3 b6 Ra6 f5 Rb3 f6+ Ke8 e7 Bh6 e5 Nc6 b8Q Be3 b7 Bc8 f7+ Kd7 f8Q Nf6 Nh3 g1R Ng5 g2 Qa8 g3 b8B Nb4 Nf7 Rc6 Qa4 Bb7 Kg7 Rd3 Qd4 Nfd5 Nd2 Nb6 Nb3 d5 Na5 Na8 Ba7 Qc8 Qaa1 Rd6 Rh2 Ra3 Bd3 Rh1 Bd2 g1N Be1 g2 Bh4 Nf3 Qf1 g1N Ra2 Rc3 Ra4 Nh3 Be4 Qe8 Qe1 Nhg5 e6+ Kc8 Qed2 Ra1 Qd1 Ne5 Bb1 Nd7 Qe5 Bb6 Qf5 d4 Qc5 Qd8 e8Q Bf3 Qee7 Bh1 Qf6 Rb3 e7 Rg3 e8Q Bf3 Qee6 Bg2 Nb3 Kb7 Na5+ Ka6 Q8e7 Bb7 Qff3 Rf8 Nh6 Rf5 h8B Re5 Kg6 Qf8 Bf6 Nh7+ Bfg5 Qf5+ Kg7 Qf4 Q7f6 Red5 Qg6 Rf5 Bd8 Rh5 Qgg5
1krR1bKn/2qr2bp/3p2p1/B2P1BN1/2R1B3/3R1R2/2Qn1q1B/BQ1b1q2 b - - 0 1 illegal: No proof kernel
1K1R4/r3n1pN/6qb/R2pNk2/qQNR1B2/Npr1Q3/1P1b4/nq1R1b1R b - - 0 1 illegal: No proof kernel
1QB1KQ1r/1R1N4/5B1Q/4NpQ1/pk1B3b/r3p2B/b2rBP1n/b1nqq3 b - - 0 1 illegal: No possible last move
2q3Rr/3p2BQ/2npn2R/qk1n4/p2Q3N/Qr1Pb1N1/2Rr2QK/2QbR3 b - - 0 1 illegal: No extended proof kernel
2N3QN/2p2rQ1/2P1krqr/1KB3p1/4bB2/2BBQ1Br/1b1pQ3/1n1nR1r1 b - - 0 1 legal: proof: d4 b5 b4 e5 dxe5 h5 a4 f5 axb5 f4 g4 hxg4 Ra3 Ba6 Rc3 Bc8 Rg3 fxg3 Kd2 Ke7 Kd3 g5 Kc4 a5 e4 d6 f4 a4 h4 g2 f5 a3 e6 a2 h5 a1R b6 d5+ Kb5 g3 c4 d4 b7 d3 h6 R1a3 e5 Rb3 f6+ Ke8 c5 Nc6 b8Q Qd6 f7+ Ke7 h7 Na5 c6 Nb7 Nf3 g1R Nc3 g2 Na4 Nc5 Bf4 d2 Qe2 Rc3 Nh4 Qd4 Nb6 Na6 Ng6+ Kd8 Bg3 Bc5 f8B Nh6 Bd6 Qe4 e7+ Ke8 Qe3 Kf7 Bd3 Bf5 Qf8+ Ke6 Qg7 Rf1 Nc8 g1R Bf4 Rf8 h8B Rf6 Qe2 Ng4 e8Q+ Kd5 e6 Bd4 e7 Ne3 Qef8 Nd1 e8Q Nc5 Qfg8+ Rf7 Bg3 Na4 Bdf4 Ra3 Qe7 Bb2 Qc5+ Ke6 Qce3 Rg2 Rg1 Rff2 Re1 Rg1 Q7h7 Rh2 Bc3 Rh6 Nh8 Bg6 Qhg7 Bf5 Na7 Rf8 Nc8 Bg6 Ka6 Bf5 b5 Bh7 b6 Bg6 Ba5 Nac3 b7 Nb1 b8B Rb3 Bc3 Bf5 Q8h7 Rff6 Qhg8+ R8f7 Ba7 Bh7 Bce5 Qg6 Ka5 Qh5 Bb6 Be4 Bc5 Qg6 Bc3 Qf5 Qd4 Ra3+ Kb5 Rhg6 Bh2 Ra2 Ba5 Ra3 Bc2 Rf3 Bc3 Rh3 Bd3 Rgh6 Qde3 Qg6 Bhg3
1qN4B/2pbbn2/2NQ1Q2/n1K1p2N/5R2/Qb3b1k/1Q2PQNp/R1b1r1r1 b - - 0 1 legal: proof: g4 a5 c4 g5 b4 axb4 h4 d5 cxd5 f5 Bh3 Bh6 hxg5 Ra6 g6 Bf8 g5 Ra8 Bg4 fxg4 d4 Kd7 Kd2 b5 Kd3 h5 f4 g3 a4 g2 d6 Ke6 f5+ Kd5 d7 e6 g7 h4 g6 h3 f6 b3 a5 b2 a6 b4 f7 h2 a7 b3 Nd2 Bb7 Nh3 g1B Ne4 Ne7 g8N Bc6 g7 Bb7 Nd6 Ng6 Nc8 Be3 Rf1 Be7 f8Q Nc6 Qf2 b1B+ Qc2 Rb8 a8Q b2 Qa3 Na5 Bd2 Rh7 Bc3 Ba2 Qd2 Qf8 d8N Nh8 Nc6 Nf7 Qf6 Rh4 Rf4 Rg4 Qe1 Bb3 Qg1 Bd2 Qf2 Be1 Ke3 b1B Bb2 Rg1 Bc3 Kc4 d5+ Be4 d6 Kd5 d7 Bf3 Be5 Bd2+ Kd3 Bc1 d8Q+ Nd6 Bb2 Ba6+ Kc3 Bb5 Kb4 Rb7 Rh4 Re1 Nf4+ Ke4 Kc5 Nf7+ Qd6 Rb8 Rh3 B5a4 Ng2 Rb4 Rh7 Rd4 Rh5 Rdd1 Rf5 Rg1 Nh6 Rdf1 g8Q Re1 Qgh8 Qd8 Ng4 Qf8 Nb8 Bd7 Nc6 Qg8 Nge5 Qe8 Ng6 Qf8 N6f4 Qg8 Nb6 Qb8 Nh5 Rd1 Qc3 Rdf1 Qd2 Re1 Bg7 e5 Qdb2 Rgf1 Rf6 Rh1 Nc8 Rhg1 Rg6 Kf5 Rf6+ Kg4 Rf4+ Kh3 Qf8 Nh6 Qf6 Nf7 Bh8
rQK1Q2N/1NpN3n/R3p1q1/3N1kN1/b3p2n/2P2nR1/nbrR1B2/b5R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 e4 dxe4 Be2 Qd7 fxg5 Bb7 g6 Bc8 g5 Qd8 Bg4 hxg4 Kf2 Kd7 Kg3 Ke6 Kf4 f5 h4 a5 b4 a4 d4 a3 h5 a2 g7 g3 h6 g2 g6 Nc6 d5+ Kf6 b6 Qe8 h7 Rb8 b5 Be6 d6 Bc8 d7 Ke6 d8N+ Kf6 b7 Nd4 b6 Qf7 Nh3 g1N Qe1 Bd7 Be3 Nb3 Rh2 Ba4 Rd2 Nc1 Bf2 Rc8 b8N Nf3 b7 Nh4 Ng5 Qe8 Nc3 Qc6 Na6 Ra8 b8Q Qb6 Nb7 Qc6 Rb1 a1B Nac5 Na2 Rb6 Bb2 Qe2 Ba1 Qb5 e6 Ra6 Qe8 Qd7 Qf7 Qde8 Be7 Ke3 f4+ Kd4 f3 Nd7+ Kf5 Kc4 Bf8 Nd5 Nf6 g8R Ba3 c3 B3b2 g7 Qh5 Kc5 Qg6 Bd4 f2 Be3 f1N Bf2 Bb3 Kc6 Nh2 Nbc5 Bc1 Kb7 N2f3 Kc8 Bcb2 Nb7 Bc2 Rf8 Rg8 h8N Ba4 Rf7 Rf8 Re7 Nh7 g8R Kg4 Reg7 Rf4 Bg1 Kf5 Bb6 Rg4 Bf2 Rg2 Ngf7 Qh5 Rg3 Qg6 Ng5 Rg1 Rg7 Rc1 Rg1 Rc2 Ngf7 Qh6 R7g3 Qg6 Ng5
b3kb1R/1b6/3pRQ1R/RQ1rp3/pqq1P1nQ/B6K/1n1bN3/r2R2NQ b - - 0 1 illegal: No possible last move
1k3nNb/1rR2NN1/1n3p1R/2p3bK/p1np3B/5P2/QRQ3Nr/1q1b1N1R b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Na3 Ke5 Nb1 Ke6 h4 g5 b4 c5 e4 a5 Ke2 f6 b6 g3 Kf3 d4 Kg4 g2 f3 Bb7 b5 Qe8 d8Q Bg7 h5 Nc6 e5 Nce7 h6 Bf8 d7 Nc8 h7 Qg6 Nh3 g1B Qc2 Ba6 b7 Nge7 b8R Bg7 b6 Ra7 b7 Nc6 Nd2 Be3 Nf1 Nb6 Qg8+ Ke7 d8N Kd7 e6+ Kc7 e7 a4 Rb1 Na5 Nf4 Be2 Rb2 Bd1 Qa2 Nac4 Ng2 Qd3 Kh5 g4 Ra8 g3 b8N Bg5 Nbc6 Rb7 Ra7 Kc8 e8N Qb3 Ne7+ Kb8 Nge3 g2 Nf7 g1N Ng8 Ne2 Ng2 Qb4 Be3 Qb5 Bf2 Nf4+ Kg4 Qb4 Bh4 Ng6 Kh5 Nf8 Ne7 Rg8 h8R Qb5 Rh7 Bh8 Rh6 Rg7 Ng8 Rh7 Rb1 Qb2 Ng7 Qa1 Rb2 Qb1 Nf5 Re7 Rc7 Re2 Nf4 Rh2 Ng2 Rg7 Ne5 Re7 Ng7 Rd7 Nf7 Re7 Rc6 Rb7 Rc7
2BN3B/3RR3/Q1br4/1p3k2/1Rnp1rBn/3R4/BPqppbQ1/Kb2rR2 b - - 0 1 illegal: No proof kernel
N1q4k/b6p/2R5/2p1pr1n/K2nrNN1/2PpqR2/2R1bQb1/2RQ1RNB b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 e4 Ke7 e6 f6 e5 Ba6 Bf4 Bc8 Bg3 Ke8 e7 Kf7 e6+ Kg7 Be5 fxe5 Qe2 Kg6 Qd1 Kf6 Kd2 Kg7 Kc3 a5 Kb3 d5 e8R c5 g4 h3 f4 h2 f5 d4 b6 d3 g5 Qd6 f6+ Kg6 e7 Ba6 b7 Kf7 g6+ Ke6 f7 Kf6 g7 Nd7 b8R Nh6 g8N+ Kg7 Rec8 Nf6 Bg2 Qd5+ Ka4 Nh5 b4 Qe4 Nf6 Qe3 b5 Nf5 b6 Nd4 Rc6 Bc8 b7 Bg4 Nc3 Be2 Ncd5 Ra6 e8Q Bd6 c3 Rf8 Ng4 Kh8 Nf4 Ra7 Ra8 Bb8 Rc1 Ra6 Qd8 Ba7 b8N Rb6 Qh4 Rb4+ Ka3 a4 Qf2 Rc4 Na6 Rb4 Nc7 Rc4 Ka2 a3 Rb8 Ra4 Rb2 Rc4 Rbc2 Rb4 Ka1 a2 Na8 Ra4 Kb2 Rb4+ Ka3 a1Q+ Ra2 Qb1 Rac2 Rc4 Nf3 Qb7 Rf1 h1B Ng1 Qc8 Bd5 Bg2 Bf3 Rg8 f8R Rb4 Rff6 Rg5 Rf7 Rf5 Rff6 Bh3 Bh1 Bg2 Rf7 Nf3 Rff6 Re4 Rf7 Nd4 Ka4 Kg8 Rff6 Kh8 Nfh3 Rg5 Rf3 Rf5 Nf4
3rnb2/2N1r1k1/QQ1n2pq/1pRNp2B/p1b1N2K/5N2/PQ3R2/N1Q1r1q1 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 e4 f6 e6 Bd6 e5 Bf8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 e8N d5 f4 a5 Kf2 b5 Kg3 g6 h4 a4 c4 d4 f5 d3 e7 Kd7 h5 d2 f6 Ke6 h6 Kf7 h7 Qd7 c6 Qd5 c7 Bf5 c8N Be4 c5 Bc2 c6 Qb3+ Nf3 Qd3 c7 Bb3 Nb6 Bc4 c8Q Nd7 Qa6 Nh6 Na3 Qb1 Nc2 Bd5 Qc1 d1Q Be2 Qb3 Rh2 Qb2 Kh4 g3 Nc7 g2 e8N g1R Rf2 Rg8 h8Q Bc4 Nbd5 Ra7 Rb1 Qb3 Na1 Qe3 Rb3 Re1 Rc3 Bd3 Rc5 Bc4 Rg2 Qg1 Rf2 Qd2 Qb2 Ng4 Bd1 Nb6 Qh6 Nc8 Qb6 Rh8 Nd6+ Kg8 Ne4 Nd6 Ne8 Rd7 Nec7 Rd8 Qa6 Rh7 f7+ Kh8 Qb6 Nf6 Be2 Nh5 Qe3 Kg7 Qec3 Qh6 Qcc1 Bb3 Nfg5 Nf6+ Bh5 Nfe8 Nf3 Bc4 Qb7 Nc8 Qb3 Kh8 Qbb1 Bd6 Qbb2 Rg7 f8Q+ Kh7 Qf5 Bf8 Qa8 Re7 Qe6 Kg7 Qb6 Ncd6 Qaa6
1QN1Q3/2R3qp/r1pQK1RR/bp2B3/3N2p1/r2n1Rn1/1RP4k/1bQ1r2q b - - 0 1 illegal: No possible last move
6N1/1Nqb2p1/pkp2QP1/1N6/1N1nQ2r/3rR1QR/Kp2bbQb/4Q1nB b - - 0 1 illegal: No proof kernel
6N1/rB2n2p/QQ1bkN2/pB1r3P/3Bb1Rp/4Qnp1/Q1Q1p1K1/qr1B4 b - - 0 1 illegal: No proof kernel
R1KR4/2bR2r1/4b3/NB3qBb/n1nn3B/R3r2q/4PRqN/k1B3bB b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bh3 Qb3 Bd7 axb5 Ra7 b6 Bc8 b5 Ra8 Qb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 Kb3 g4 c5 d6 f5 d7 h5 Ke6 h4 d5 c4 g6 c3 g5 h3 g7 c2 d6 f3 g6 h2 b7 f2 b6 f4 Ra5 f3 Ra2 Qg5 Bd2 c1B Be3 Ra3 Rd2 Nc6 b8B Nge7 g8B Nd5 b7 Rh7 g7 Nc3 Bg2 f1Q Rd3 Kb2 Nd2 b3 Nc4+ Kb1 Na5 f2 Nf3 b2 Bba7 Qc5 b8R Na4 Bg5 Bf4 Rbb3 Ka1 Bf7 b1Q g8R Rg7 Be8 Qc3 Be3 Be7 Rg1 h1B Nh2 Qbc2 Bd5 Bf3 Rg2 Bh5 Bc1 Qh1 Rd1 f1N Rf2 Nd2 Rf8 Qg1 Bh1 Nc4 Rd4 Qg2 Rd5 Ba6 d8B Nd4+ Kd7 Qch3+ Kc7 Qce4 Bb5 Qef5 Rc3 Be3 d7 Bc8 Bh4 Bc5 Bdg5 Bb6+ Kb8 Rb3 d8R Be6 R5d7 Bc7+ Kc8 Ra3 Rf3 Bg1 Rf2 Rb3 Rg3 Re3 Rh8 Re5 Ra3+ Kb1 Rdg8 Qgg4 Kb7 Re3 Ra8 Qge4+ Kc8 Qeg2 Rc3 Ka2 Rd8 Ka1 Ra3+
N1rrRrq1/p4BB1/2r1q2n/K1k1BB1P/N3b2q/2B2Nbn/2N2R2/N7 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 b4 Kd7 h4 Kd6 d4 e5 Kd2 c5 Kc3 c4 b6 g3 b5 e4 Kb4 g2 g6 e3 b7 c3 h5 c2 b6 f3 f6 e2 g7 e1R f7 f2 Bb2 c1Q Nd2 Qf6 Rh2 Qb1 Nb3 Qe6 Nf3 g1R Bd3 f1Q Bc3 Qc1 Rf2 Rd1 Bf5 Qg5 Ka5 Rd2 Re1 Na6 b8N Qd7 b7 Rh6 Nc6 Rb2 b8B+ Nc7 Na1 Qe3 Nb4 Qde8 Nbc2 Bb7 Ree2 Be7 f8B Qe6 Re1 Rf6 Re3 Nh6 g8B Rg7 Bf7 Rgg6 Bg7 Qh3 Ree2 Qh4 Re4 Kd7 d6 Kc6 d7 Bd6 d5+ Kc5 d8N Bg3 d6 Nd5 d7 Nf4 Bbe5 Qg8 Re1 Be4 Nb7+ Kc4 d8N Rc8 Re3 Nh3 Nc5 Rbb8 Na4 Kd5 Nb7 Rd8 Nbc5 Rbc8 Nb6+ Kc6 Na8 Kd5 Be8 Rf8 Na4 Rgf6 Nb2 Kc5 Bf7 Qb3 Ree2 Rfc6 Re1 Qe6 Na4+ Kd5 Rb1 Kc4 Rb7 Kd5 Re7 Kc4 Re8 Kd5 Nb2 Kc5 Na4+
B2B2q1/2N2bpq/k3r3/1N3N2/2nR1p1p/P2Nrr1B/B2n2BR/3N1b1K b - - 0 1 illegal: No proof kernel
1rk5/2n1b3/NRNrNBbR/p3r3/b2n3K/1r1Bp2B/q1B1P1b1/N1BN4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 cxd4 Qd3 Ba6 Qf3 Nc6 fxg5 Bc8 g6 Nb8 g5 Rh6 Qh3 Rh8 Qg4 hxg4 Kf2 a5 Kg3 e5 b4 f5 c4 d5 h4 Kd7 b6 d3 c5 d4 h5 f4+ Kh4 d2 h6 d1R b5 f3 b7 g3 g7 d3 b6 g2 c6+ Ke6 c7 Kd7 h7 f2 Nc3 d2 Nh3 g1R Rb1 e4 Nf4 e3 Ne6 Be7 Bh3 Nh6 g8N f1B Nf6+ Kd6 g6 Bf8 g7 Na6 g8B Be7 b8N Rg5 b7 Re5 Nc6 Rb8 Rb6 Bg2 Bf5 Bd7 c8B Nc7 Bd3 Be8 Bf7 Rg8 h8B Rgg5 Bh5 Bg6 Nfd5 Qg8 Ndb4 Rb5 Bg7 Rge5+ Bf6 Qf7 Nc2 Rb3 Na1 Nf5+ Kg4 Nd4 Kh4 Qg8 Bf3 Qf7 Bfe4 Qg8 Ng5 Qd5 Bh3 Qc4 Ne6 Kd7 Bc2 Qa4 Bed3 Qa2 Rh2 Re8 b8N+ Kc8 Na6 Rd8 Bdf5 Rd6 Bb2 Rb1 Bc1 d1B Bcd3 R3b2 Bfe4 Ba4 Nd1 Rbb5 Bc2 R1b3 Bed3 Rbd5 Rb4 Rb5 Rh1 Rb7 Rb6 Rb8 Bg4 Nd5 Kg3 Rb4 Rh6 Nc7 Kh4 Rb3 Bh3
QrB4Q/1r6/5BKQ/kB3NBr/4Nbb1/r2p1NbP/1R1n4/N2r3r b - - 0 1 legal: proof: d4 a5 b4 c5 a4 cxd4 e4 f5 exf5 b6 b5 Nc6 Ra2 Nb8 Rb2 Ra7 Rb4 axb4 a5 Ra6 axb6 Ra8 h4 h5 Kd2 g5 Ke2 g4 Ke1 Qc7 Ke2 Qf4 Ke1 Qg5 hxg5 Bb7 Ba3 Ba6 Bc1 Bc8 Bc4 h4 Qd2 h3 Nf3 h2 Qd1 Nc6 Ng1 Ne5 Bf1 Ng6 Be3 Nf4 Bc1 Nh3 gxh3 Rh4 Na3 Rh5 Nb1 Rh8 Ke2 Kd8 Kd3 d5 c4 e5 f4 g3 b7 Kc7 b8Q+ Kd8 b6 g2 c5 b3 f6 b2 c6 Ne7 f5 Ra6 b7 Ng6 f7 Ba3 f8N Nh4 f6 Rb6 g6 Rb5 f7 Be7 g7 Bb4 g8N Bc3 Ng6 Bd2 f8B Rh5 Bg7 Bf4 Qa8 Kc7 Nf3 Kb6 c7 g1R Nbd2 b1R N6e7 Rg3 Nb3 Bg4 c8B Rb2 Rg1 h1R Nf5 Rb1 Na1 e4+ Ke2 e3 Kd3 e2 Bf6 e1B Rg2 R1b4 Rb2 Bf2 Qd2 Be1 Qb8 Ka5 Qe5 Rb6 b8Q Rb7 Qe8 Bf2 Qbe5 Be1 Qf8 Rb8 Qg2 R4b5 Qh6 R5b7 Qe8 Bd6 Bcg5 Bf4 Qef8 Bf2 Qh8 Be1 Qfh6 Bf2 Kc2 d3+ Kc3 d2 Kd3 d4 Ke4 d1R Ba6 B4e3 Ke5 Bf4+ Ke6 Rb5 Kf7 R5b7+ Be7 Be1 Nf6 Bf2 Ne4 Be1 Ng1 Nf3 Kg6 Nd2 Bef6 Ra3 Nf3 d3 Qg1 Rf7 Qa7 Beg3 Qa8 Rfb7 Bb5+
rn2n1k1/5n1B/1PQ1Bq2/BR1B3Q/6K1/R2N1p2/pQ3Rn1/rq2q1R1 b - - 0 1 legal: proof: c4 a5 f4 d5 cxd5 e5 b4 exf4 a3 Bc5 a4 b5 axb5 a4 Na3 Ba7 Nb1 Bb6 g4 f5 Nc3 h5 Ne4 f3 Nf2 Ba5 bxa5 f4 Ngh3 Ke7 Ng1 Bf5 gxf5 Ke8 Ng4 hxg4 Kf2 Kf8 h4 g5 d4 c5 e4 a3 f6 c4 b6 c3 h5 c2 d6 Nd7 f7 Qc7 e5 Rd8 e6 Ne7 h6 Qb7 h7 Nb8 d5 Rc8 d7 Rg8 d8R+ Kg7 f8R Qa6 d6 Rh8 d7 Ng8 e7 Nf6 Bd3 Ne8 Bd2 c1Q Ne2 Qb1 Rg1 Rc1 Rc8 Qa8 d8Q Qc6 a6 Qf6 a7 a2 a8B Rg8 Bd5 Rh8 Qd6 g3+ Ke1 g4 Qc6 g2 Kf2 Rg8 Ba5 Rh8 Bf5 Rg8 Bfe6 g3+ Ke1 f2+ Kd2 Nc7 e8B f1N+ Ke1 Ne3 Bg6 Ne8 Bc2 Na6 Ra8 Nb8 Kd2 Rh8 Kd3 Rg8 Ke4 Kh8 Kf3 Kg7 Rh1 g1Q Rh5 Ng2 Kg4 Qe1 Qd4 Rd1 Nc1 Rh8 Nd3 f3 Qb2 Rc1 Rh2 Ne3+ Kh3 g2 Rg8+ Kh6 Rg7 Nc7 Bcb3 Qc2 Nc5 Qg1 Bd2 Nba6 Rb1 Qe1 Qe5 Qb2 Ra7 Ra8 Bc2 Nb8 Ra3 Ne8 Ba5 Qb5 Rbb3 Ra1 Bcf5 Qd3 Qb2 Qe4 Rg4 Q4b1 Bg6 Kg7 Rb5 Kf8 Nd3 Kg7 Rh1 Kh8 Rf1 Kg7 Rf2 g1N+ Kg3 Nh3 Bgf5+ Kf8 Rg6 Ng5 h8Q+ Ke7 Qh7+ Kf8 Qh5 Nf7 Bfe4 Nh6 Kh3 Nf7 Rg1 Ng2 Kg4 Kg8 Bh7+
1Qq1RN2/B5KP/qBQ2p2/1N3Bp1/bk1q1r2/4r1bN/Q4Q1r/5qB1 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 a4 b5 axb5 d5 cxd5 Na6 b6 Qg5 b5 Qe7 Ra4 Nb8 Rb4 Qd8 g4 axb4 g5 h6 g6 Nd7 Qb3 Ndf6 Qc2 Ra3 Qd1 Ra8 h4 Nh7 gxh7 g5 h5 Ne7 Rh2 Ng6 hxg6 Ra7 Rh1 Ra8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kc4 d6 c5 d5 h4 g7 h3 g8Q h2 b7 b3 b8B f3 e4+ Kb4 d7 c4 d6 f2 b6 b2 b7 c3 Nh3 c2 Be3 c1R Bd3 f1Q Bba7 Rc6 b8Q+ Bb7 Qf3 Ra6 Bg1 Rc6 Qf2 Qc1 Nc3 b1Q Nb5 Qa2 Kf5 f6 Kg6 Qb6 d8B Qaa6 d7 Rc2 e5 Qd4 e6 Bc6 Bdb6 Bd6 d8N Bg3 e7 Qf1 Qe6 Re8 Bf5 Rc4 Kg7 Bd7 Nc7 Ba4 Nb5 Rc2 Qc6 Qfc4 Qcg2 Qcc8 Ne6 Re2 Qd5 Re4 Nf8 Rf4 Qbe5 Rb8 Qda2 Rb7 Qee6 Rc7 Qe5 Rc2 Qb8 Re2 Nd7 Re3 Nf8 Rd8 e8Q Rd5 Qe4 Rc5 Qc6 Rc2 Qff3 Rce2 Bf2 Rb2 Re1 h1Q Bg1 Rh2 Qff2 Qg2 Re2 Qf1 Re1 Rb3 Re5 Re3 Re8
2B1rq1q/6Q1/Q1p1N1P1/1B1QpN2/4KQrp/2knRn1B/1q6/1bNB4 b - - 0 1 legal: proof: c4 a5 b4 g5 h4 d5 cxd5 Bg7 hxg5 b5 a3 Bd4 a4 Bb6 axb5 a4 Rh3 Ba5 Rh4 Bb7 Rh1 Bc8 bxa5 e5 d4 f6 e4 Ra6 d6 Ne7 d5 Ra8 Bb2 Ng8 Bd4 Be6 Ra2 Bd7 Re2 exd4 e5 Bc8 e6 Nh6 Re3 Ng8 Re5 fxe5 Ke2 h5 Kd3 h4 f4 a3 g4 a2 b6 a1Q f5 Ne7 g6 Nbc6 g5 Nb8 b7 Qa4 d7+ Kf8 g7+ Kg8 a6 Ra7 d6 Ng6 f6 Ne7 f7+ Kh7 g8B+ Kg6 f8Q Qa5 Bh3 Nd5 e7 Rh5 Qf4 Ne3 e8B+ Kg7 g6 Rg5 Qdf1 Nc4 Ke4 d3 Na3 d2 Bge6 d1Q Nb5 Qb6 Ne2 Nb2 Nc1 Nd3 Nd4 Qb2 Nf5+ Kf6 Rh2 Qh5 Re2 Qh7 Re3 Ra8 a7 Nc6 b8Q Qh8 Qb7 Rg4 Qe2 Rb8 a8B Nd4 Qa7 Qe7 d8Q Nf3 Bb5 c6 d7 Ba6 Bb7 Ra8 Qg8 Re8 d8N Qf7 Bb3 Qf8 Nh6+ Ke7 Bc8+ Kd6 Qag7 Kc5 Ne6+ Kb4 Nf5 Kc3 Qf1 Qh2 Bd1 Qb2 Bba4 Bc4 Bb5 Ba2 Q8f7 Bb1 Qd7 Qfa3 Qd5 Qaf8 Qe2 Qa1 Qea2 Qb2 Qa6
1R1Q3B/1PRNnp2/k1p3R1/2K1N1Qq/2pQ2b1/3pRNp1/Qq5n/r7 b - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e6 axb5 Ne7 c4 dxc4 d5 Ng6 d6 Ne7 Bg2 Ng8 e4 a5 f4 a4 b4 Be7 e5 Bf6 Bd5 exd5 e6 Be5 fxe5 Ra5 bxa5 Rh7 Nf3 Rh6 Ng1 Rh8 Kd2 g5 Kc3 a3 Kb4 g4 h4 g3 h6 d4 h7 c6 a6 d3 e7 Kd7 e8R a2 b6 Ne7 a7 Ng6 a8Q Nf8 h5 Qf6 h6 Qe7 Nd2 Qe6 Ngf3 Bb7 Kc5 Qf6 Bb2 Rg8 h8R Rg6 h7 Bc8 Qc1 Rg8 Rh6 Qg5 Rg6 Qf5 b7 Qg5 Re7+ Kd8 d7 Qh6 e6 Kc7 Ne5 Qh4 Ndf3 Qh5 Rb1 a1Q Qg5 Qa2 Re1 Qa1 Re3 Qc1 Rg7 Ng6 Qa2 Rd8 Bc3 Qb2 Rhg8 Re8 h8Q Rf8 Kd4 Kb6 d8Q+ Kb5 Rc7 Nd7 e7 Nf6 e8N Ne7 Rg6 Ng4 Nf6 Nh2 Nfd7 Re8 Qb3+ Ka6 Kc5 Nd5 Qhf6 Re6 Qff4 Ne7 Qd4 Rf6 Ng1 Rf1 Ngf3 Ra1 Re8 Ra4 Qa2 Ra3 Nf8 Bg4 Nfd7 Nf5 Qde7 Ra4 Rb8 Ra3 Qf8 Ne7 Qd8 Ka7 Qb1 Ka6 Qdf4 Bh3 Ng4 Qa2 Bh8 Qb2 Nge5 Bg4 Qd4 Ra1 Qa2+
1K2b1rN/1BP4R/6qn/r1n2b1Q/7R/k3r2Q/B3nrQR/1B1R1rBb b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 h4 Qb6 g4 Bg7 f5 Nc6 Nc3 Ne5 Nce2 Bh6 Nf4 gxf4 g5 Nc6 g6 Bg5 hxg5 Nb8 Rh2 Qc7 Rh1 Qd8 Ke2 a5 Kd3 d5 b4 Kd7 c4 Kd6 b6 h5 b5 Kc5 b7 Kb4 g7 e5 b6 h4 g6 a4 c5 a3 c6 a2 c7 f3 f7 f2 f8Q+ Qd6 f6 h3 f7 h2 Nf3 Na6 b8Q Rh5 b7 Bg4 Qbc8 Rb8 Be3 Nh6 g8B Rh4 g7 Ka3 Bg2 f1R Ng5 Bf5+ Be4 Rf2 Bh7 Rh3 Qg8 Qg6 f8R Rhf3 Rc1 a1R Nf7 Rf1 Rb1 R3f2 Nh8 Ra8 b8R Raa2 Rg1 h1B R8b4 Ra1 Rf7 Rb8 Qe2 Nc5+ Kd2 d3 Kc3 d4+ Kc4 d2 Kd5 d1N Rg2 d3 Qh5 d2 Rh2 Ra2 Qe6 Nc3+ Kc6 Rd8 Rd1 Ne2 Bf3 Ra8 Rbh4 e4 Kb6 Rc8 Ka7 Re8 Bd4 e3 Bb7 Rd8 Qc8 Rf8 Rd7 Ra1 Qd5 Rg8 Kb8 Ra2 Qg2 Ra1 Rb1 d1B Rf7 Bdc2 Rd1 Ba4 Re7 Be8 Qe6 Be4 Qeh3 Bf5 Rf7 Nc3 Rd7 e2 Re7 e1R Rf7 Rfe2 Bg1 Ref2 Rfd7 Re3 Re7 Rf8 g8B Ne2 Ba2 Rg8 Rg7 Rb1 Rgd7 Rb5 Rf7 Qd6 Bg6 Ra5 Rh7 Qc6 Bgf7 Qf6 Bb1 Qg6 Bfa2
q2RR3/1N1Q1bP1/1Q1rRK2/2N4b/1nrBq1N1/1bb1n2Q/1b5N/4nQk1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 h4 gxh4 b4 a6 b6 Be6 b7 Bf7 b5 Be6 b6 Bc8 Bb5+ axb5 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 h5 g4 b4 f4 b3 f6 b2 g5 h3 d6 h4 f7 h2 f5 h3 f6 Nh6 d3 Ra6 g6 Bg4 d7 Bg7 f8Q Bh5 Qf1 Nf5 Qe8 Ne3 Nc3 b1Q Bb2 Nc6+ Ke6 Kd4 b8Q Rh6 f7 Nb4 f8N c5 Qc8 c4 Nd1+ c3 Nf2 Ra4 b7 Bf6 Kf7 e5 b8Q e4 Ng4 Qa5 d8N Qa8 Nb7 Bg7 Ba3 c2 Nd7 c1B Ndc5 Bb2 Qa7 Bh8 Qb6 Be5 Ke7 Qc2 g7 Rd6 Qec6 Ng2 Re1 e3 Nf6 Na2 Qff3 e2 Bb4 Rd8 Qff5 Ke3 Nf3 Kf2 d4 Qd3 Rhg1 h1B d5 h2 Bc3 Rc4 d6 Nb4 Qf4 Qb1 Qh3 Bd4 d7 Be5 Rd1 e1N Qd5 Ne3 Rg6 Bg2 Rd4 Kf1 Re4 Qc2 Ng4 Bd4 Nd2+ Kg1 Nf1 Bf3 Kf7 Bd1 Re8 h1B Nfh2 Bg2 Qdd6 Bd5+ Ke7 Bg8 Re6 Qe4 Qdc6 Bb3 Qff3 Rc8 d8R Bgf7 Qd7 Rc6 Qf5 Be5 Qf6 Rd6 Qff3 Bg3 Bf6 Bge5 Qf5 Bec3 Bd4 Ng2 Kf6 Ne1 Qff1#
3nb2r/2N1Q3/KN1rnq1B/2q3rR/2BQB3/4Nqn1/1qBP4/N4Qbk b - - 0 1 illegal: No possible last move
1QQ1r3/2n2qRb/n1bK1b2/r1rR3N/3kB3/r3q1B1/1P3R2/QQBn1B2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 Kf2 Kf7 d4 e5 h4 a5 b6 c5 f6 c4 h5 a4 h6 f3 Ke3 c3 Ke4 c2 h7 a3 b7 a2 d6 Ke6 g6 g3 d7 g2 g7 f2 f7 Na6 b8R Qc7 d8Q Bd7 Qe8+ Be7 f8Q Bc6+ d5+ Kd6 Qf4 Kc5 Ne2 g1N Qg6 Bf6 Rd8 Ne7 g8B Nh3 Ng3 Qd7 Rb1 a1R Nh5 Ra3 Rh2 Qc7 Bf7 Re8 h8B Qd7 Qh7 Qe6 Bg6 Qf7 Qfg4 Ra5 Qc8 Ra7 Bb5 f1B Rf2 Bc4 Rd6 Ba2 Ra1 Bb1 Bf1 Ra8 Ra3 Ra7 Rg3 Ra8 Ke3 e4 Bf5 Ra7 Rg7 Ra8 Rd7 Ra7 d6 Nd5+ Ke2 e3 Kd3 e2 Be4 e1Q Rd8 Ng1 d7 Ne2 Qf5 Nc3 Qg6 Kd6 Kc4 Ke5 Qg1 Qe3 Qd3 Nb5 Qa3 Nbc3 Qa1 Nd1 Qg6 Ba8 Qh7 Ra3 Kb5 Kd4 Qb8 Rb7+ Kc6 Rb5+ Kd6 Ndc7 Bb7 Rf8 Re8 Ra2 d8Q Ra3 Rg3 Rd3 Qdc8 Ra5 Bd2 c1R Re5 Rcc5 Bc1 Bg7 Bbg2 Re8 Rd5+ Kc4 Qg6 Bc6 Rg5 Bd4 Be5 Bc2 Bg3 Bf6 Qh7 Bb1 Rg7 Bc2 Re2 Rda3 Rf2+ Bd3 Re5 Kd4 Qhf5 Bdb5 Qfb1 Bd3 Reg5 Bf5 Be4 Bh7 Rd5+
2R1n1q1/rrr1R2b/1bk1qRNR/8/q3Bb2/BQB4P/5Q1Q/b1n1KQ2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 Nh6 g4 Ng8 Nc3 gxf4 Ne4 h6 g5 h5 Nf2 Rh6 Ng4 hxg4 Kf2 Rh5 Ke1 Rh8 b4 Kd7 d4 a5 h3 e5 f6 c5 g6 g3 b6 a4 g7 g2 f7 e4 d6 f3 b5 e3 b7 a3 d5 c4 b6 c3 Ra2 c2 Bd3 e2 Be4 Nf6 g8R Ne8 Rg6 Na6 b8Q Rh7 b7 Nb4 Rf6 Bh6 f8Q Ra7 Bd2 c1Q Bc3 Qc2 Rb2 Na2 Rb6 Qa4 Qd4 Nc1 Qf2 a2 Ra6 Qb6 Qf7+ Kd8 d7 a1B Qh2 Qe6 b8Q Bf4 Qb3 Kc7 d8R+ Bd7 Qf8 Qg8 Rae6 Bb5 Rc8+ Kb7 Qf1 Rc7 d6+ Kb6 Rh6 Kc5 Ref6 Bd3 Qff7 Bb1 d7 Rb7 Bd5 Bh7 d8B Ra7 Be4 Rb7 Kf2 e1R Ne2 Rd1 Ra8 Rdd7 Ke1 g1B Rc8 Re7 Qf8 Qe6 Qf7 Kd6 Qf8 Bb6 Rg1 Ra7 Rg7 Rcb7 Qf7 Rec7 Be7+ Kd7 Bf5 Kc6 Ba3 Qd6 Qf8 Qe6 Re7 f2+ Kd1 Bfe3 Nf4 Bd2 Ng6 Bf4 Qe1 f1Q Bb1 Qf2 Qf1 Qc5 Be4+ Qd5+ Ke1 Be5 Rf5 Bf4 Qf6 Qd6 Qh4 Qe6 Q4f2 Qg8 Bb1 Qd7 Rf6+ Qde6+ Be4+
R1K3Q1/3N1qB1/P4qn1/2Q1n1qb/Q1rNb3/2nbBB2/2QN3q/2kr3N b - - 0 1 legal: proof: f4 a5 c4 h5 a4 d5 cxd5 f5 e4 e6 exf5 Bd6 b4 axb4 g4 Rh6 g5 Rh8 Ra3 Bf8 Rg3 Be7 Rg4 Bf6 gxf6 hxg4 Ke2 Kd7 Kd3 Kd6 Kd4 b5 h4 g5 d3 c5+ Ke4 e5 a5 c4 f7 Kc5 f8N g3 h5 c3 f6 b3 d6 Kb4 Kd5 e4 d4 g4 d7 e3 Kd6 g2 d5 c2 h6 e2 f5 e1Q a6 g3 f7 b2 f6 Kb3 h7 b4 Rh5 Qf2 Bd3 Ne7 Nh3 g1N Be3 g2 Be4 Ne2 Bf3 g1Q Ne6 Ng6 f8N Nc6 f7 Qf6 Kc7 Qgh2+ d6 Nce5 d8Q Nc3 d7 Rg8 Qd4 c1Q h8B Kc2 Bg7 b3 Nd2 b1B Rh8 b2 Qc4 Bb7 Qc8 Be4 d8Q Qcg1 Qe8 Qgg5 Nd4+ Kc1 Qca4 Bbd3 Nd7 b1B f8Q Ba2 Qfb4 Bf7 Qc5 Ra7+ Kb8 Rc7 Qef8 Qf1 Nf2 Rc6 Qfe8 Rf8 Qe6 Rd8 Nh1 Be8 Qg8 Qff2 Qca5 Rc4 Qc5 Qf7 Nf8 Rd5 Nd7 Qfh4 Kb7 Qgf6 Q8c6 Qhg5 Kc8 Bc2 Qb7 Qb6 N2b3+ Kb1 Nf5 Qfe6 Qf8 Rd1 Kb8 Nf4 Nfd4 Bcd3 Nd2+ Kc1 Rg8 Qbc6 Qbb3 Bh5 Qf7 Qef5 Re8 Qcg6 Qg8 Qgf7 Kc7 Qgf6 Ra8 Nfg6 Kc8 Q5g5 Qc2+
bb2Nk1r/BPN5/RQ1n4/qN2Q2r/R4N2/7r/Q1Qr2nR/nK3bn1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 d4 c5 Kd2 a5 Kc2 e5 b4 g3 h4 c4 f6 g2 d6 c3 d7+ Kf7 b6 f3 h5 e4 b7 a4 g6+ Ke6 b5 a3 h6 f2 f7 Ke7 h7 f1B d5 a2 d6+ Ke6 b6 e3 g7 e2 Be3 e1R Rh6+ Nf6 g8Q Nc6 b8Q Na7 Ne2 g1N Na3 Be7 Nb5 Bb7 Bf2 Qc7 d8Q Nc8 d7 Ra5 Bc5 Ba8 b7 Bd6 Ba7 Qc5 Qb6 Ke7 d8N Nh5 f8N Nf4 Nde6 Ng2 N2f4 Re3 Nd7 Rh3 Nf6 Bc7 Rg6 Nd6 Ne8 Qh5 Kc1 c2 Kb2 c1R Qc2 Rd1 Rf6 Bd8 N6c7 Rd2 Rh6 Qf5 Qb3 Kf8 Kc1 Rg8 h8R Qc5 R8h7 Rh8 Re6 Qf5 Re4 Bf6 Ra4 Be5 Qd5 Rg3 Rh2 Rgh3 Rb1 a1N Qda2 Qg5 Rb3 Qh5 Rba3 Qf5 Kb1 Qg5 Nh5 Bg3 Nf4 Qd8 Nc3 Rah5 N3b5 Qg5 Ra6 Qe5 R3a4 Qc3 Qab2 Qa5 Qa2 Re2 Nd3 Nc8 Nd5 Rd2 Q8c7 Be5 N3f4 Bd6 Q7c3 Bb8 Qe5 Nd6 Ndc7
qNn1B3/2n5/2bbBB2/r1QqP1K1/1rQ2rR1/kn2Q3/2nRQ1r1/4R2B b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Qf6 Na3 Qa6 Nc2 Qh6 axb5 Qd6 b6 Qf6 b5 Qd8 Nb4 axb4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 d4+ Kd6 g4 c5 e5+ Kd7 d6 f5 d5 h5 b7 h4 g6 c4 g5 h3 b6 b3 g7 b2 g6 b1N Ra4 h2 Bg2 c3 Qe2 Na6 b8Q c2 b7 Ne7 g8B Rh4 g7 Nc7 Bf7 Ra5 g8B Na3 Qa7 Qe8 b8R Bb7 Qc5 Bc6 Rb2 Nc8 Qee3 Qe6 Ne2 Be7 Rd1 h1Q Re1 Rg4 Bd2 c1N Nd4 Nb3 Ra2 Qh8 Bh1 Rg2 Bg6 Nc2 Be8+ Kd8 d7 Bd6 Bgf7 Bb5 Raa1 Be7 Qec3 Qhf6 Re3 Qa6 Rc4 Qfe6 Rae1 Qa8 R3e2 Bf8 Rf2 Qd6 Be6 Ke7 Ke2 f3+ Kd3 f4 Ke4 Ba4 Kf5 Kd8 Rfe2 f2 Qg3 f3 Bg5+ Be7 Bf6 f1R Qf2 Qdc6 Qg1 Rff2 Qf1 Rg4 Rd2 Rfg2 Qe2 f2 Rb4 Nb5 Rc4 Kc7 d8Q+ Kb7 d6 Ka6 d7 Nc7 Rb4+ Bb5 Ra4 Qd6 Nc6 f1R+ Rf4 Rh4 Qce3 Bf8 Qe7 Qc5 Rf2 Rb4 d8Q Kb6 Nb8 Bc6 Rf4 Qd4 Q2f2 Kb5 Qc5+ Ka4 Qdd5 Ka3 Qdc4 Bd6 Rg4 Qd5 Qff3 Rff2 Kg5 Rf1 Qd1 Rf4 Qde2
1r2r2b/b1N4Q/b2rQ1BP/NN4K1/1Qr3R1/4N2r/2n2B1B/rBn2k1n b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b4 f5 Na3 h5 Nb1 f3 Ra6 f4 Rg6 Qf6 Rg5 Qf5 gxf5 Ke7 Rg2 Ke8 Rg4 hxg4 Kf2 Kf7 d4 Kf6 h4 a5 e4 g5 d6 c5 d5 Ke5 h5 a4 d7 c4 d8N a3 h6 c3 d6 a2 d7 a1B b6 c2 b5 Bd4+ Be3 c1N b7 Bg7 f6 Ba7 f7 Nc6 b8N Bb7 f8Q Nb4 b6 Nf6 Qb3 Ba6 b7 Nc2 Nc3 Nh5 Nge2 Ng3 Qfb4 Re8 Nb5 Bh8 Rh4 Nh1+ Kg1 f2+ Kg2 g3 Kh3 g2 Kg4 g1R+ Ng3 f3 Nbc6+ Kf6 Ne6 Rab8 Na5 Ke5 Bd3 f1R d8Q f2 Qde7 Rd1 Qh7 f1R Nec7 Rf3 Bf2 Re3 Kh5 g4 Qe6+ Kf4 e5+ Kf3 Nf1 Kg2 Kg5 g3 Rg4 Rd2 Bf5 Rd6 Bg6 Re4 Bf5 Rc4 Ne3+ Kf3 Be4+ Ke2 Bg6 g2 Be4 Rbc8 b8B Rf1 Bf5 g1R Be4 Rg3 Bf5 Na1 Bb1 Rh3 Qf6 Rf4 e6 Nc2 e7 Rc4 Qe6 Nb3 Ba2 Ra1 Bb1 Nc1 Qa3 Rf8 e8B Rcd8 Bg6 Rfe8 Ncd5 Rdc8 Bc7 Rb8 Qb4 Rdb6 Bh2 Rd6 Ng2+ Kf1 Ndc7 Ra2 Re4 Ra4 Rg4 Ra1 Ne3+
6K1/3r1R2/QR1rB3/1r3r1R/1Q1PN3/br2nrRN/3Qb1k1/NQ1n1r1r b - - 0 1 illegal: No possible last move, all moves rejected
k1BN1R2/b7/2nN1Q1N/2nbn2p/1rqR2q1/rNb3QP/1qQR1R2/6K1 b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 g5 f4 e5 a4 Nc6 axb5 Nb8 d4 f5 dxe5 fxe4 f5 Bd6 Bd2 Bf8 Bf4 gxf4 Kf2 a5 c4 h5 g4 d5 e6 f3 h3 a4 b6 a3 g5 a2 b7 d4 e7 Kd7 e8Q+ Kc7 g6 d3 f6 d2 g7 Ra7 c6 Nh6 g8N Bd6 c5 Bd7 f7 Rh7 f8R Be5 Qc2 d1Q Qe7 Ra3 Qf6 Bc3 Nd2 Nf7 Rh2 Ne5 Ne2 e3+ Kg1 Be6 Rf2 Bd5 Nf4 e2 Nb3 e1N Nh6 N1d3 Rd2 Qe2 Rad1 a1B Bg2 Qc8 Bh1 Na6 Ne6+ Kb8 Nd8 Nab4 c7+ Ka7 c6 Nc5 Bg2 Qg4 c8R Rd7 c7 Nbc6 Rd4 Qb5 R1d2 f2+ Kh2 f1Q b8Q+ Ka6 Be4 Qfc4 Bf5 Bab2 Be6 Bc1 Rf2 Be3 Bf5 Bg2 Rdd2 Rd4 Kg1 Re4 Ndf7 Rf4 Rcd8 Qb6 c8N Bd5+ Kh2 Re4 Ncd6 Qb7 Qc7 Ka7 Bc8 Ka8 Rd7 Qb6 Nd8 Qb8 Na1 Qb2 Nb3 Qce2 Kh1 Rb4+ Kh2 Qgc4 Kg1 Qf3 Rg7 Qfe2 Rg4 Qf3 Rgd4 Qf4 Qfg6 Qh4 Qg3 Qg4 Qb6 Ncd3 Re4 Na5 Ndf5 Bc5 Qd6 Ba7 Rd4 Nc5 Qf6 Nac6 Nd6
N4nb1/2KB1NN1/4r1Pn/kQ1q1q2/1nB2Q1p/B4Q1B/1NR1b3/2br1q2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Ne7 b5 Qd8 Ra4 Ng8 Rb4 axb4 Kf2 Kd7 Kf3 f5 g4 h5 d4 c5 e4 h4 g6 c4 b7 Kc7 g5 Kb6 g7 c3 g6 b3 e5 c2 e6 b2 d6 Ra2 e7 Ra1 e8B Ra5 d7 Rh7 d5 Rh5 d6 Ra1 Nc3 b1N Nh3 Ne7 g8B Rg5 Rh2 Rg2 Ng5 Ka5 b6 Bh6 Na4 Nc3 Ne6 Re2 Ng7 Re6 Bh3 Ncd5 Ba3 c1Q Rc2 Nb4 Nb2 Qb1 Bgf7 Ng8 Qh1 Re7 Bc4 Re6 Qf1 Qg5 d8N Nd7 b8Q Nf8 d7 Qa2 b7 Rd1 Nf7 Qg4+ Kf2 f3 d8N f4 Bd7 Qf5 Qd6 Bg5 b8Q Nh6 Qg2 Bb7 Qe5+ Bd5 Qf6 Ra6 Nde6 Qb3 Nc7 Re6 Na8 Qbd3 Qf1 Qde4 Kg1 f2+ Kh2 f3 Qf4 Qd4 Qd3 f1B Q6e5 f2 Qdf3 Be2 Kg2 f1Q+ Kh2 Be7 Q4e3 Bd8 Qh1 Qd2 Nd6 Bb6 Q3f4 Bf2 Qhe4 Qfe1 Kg2 Qf6 Qef5 Re5 Qh5 Bg8 Nf7 Be3 Qhg5 Bf1+ Kf3 Qdd6 Qc6 Bc1 Qg4 Re6 Qh5+ Nd5 Qe5 Be2+ Ke4 Qf1 Qb7 Be3 Qb3 Bd2 Qbf3 Qf5+ Kd4 Qc6 Qb8 Qb7 Kc5 Nb4+ Qbe5 Bc1 Qed5 Re5 Kd6+ Qb5 Kc7 Re6 Qc6 Qbd5 Qb5+
2Qr1n2/5Knp/n2N1BQ1/1rRrP1r1/2bR2QQ/k2B3B/7q/2Rrb1B1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Qf6 Na3 Qa6 Nc2 Qh6 axb5 Qd6 b6 Qf6 b5 Qd8 Nb4 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 d4+ Kc4 g4 c5 e4+ Kc3 b7 b3 d6 Kb4 d7 f3 Ke6 b2 e5 b1R d5 f2 d6 c4 g6 f4 g5 f3 g7 c3 b6 c2 g6 Nc6 b8B Nge7 g8B Bb7 g7 Kb3 Bd3 f1N Ne2 f2 Ra5 Ng6 Kf7 Ng3 Ba7 Qh4 d8Q Nb4 d7 Na6 Bg5 f1R+ Bf6 Nh5 Nc3 Rg1 Nb5 Rg5 Qg4 c1R Nd6 Qh2 Rc5 Rd1 Qc8 Bf3 d8Q Ka3 b7 Rb5 b8R Be2 Rb7 Be7 Rd7 Nf8 Rg1 Rd2 Rgc1 Rd1 Ne8 Rab8 Rd4 R8b7 Nd6 Rd7 Ke8 Bf1 Be6 Be2 g8Q Ng7+ Kf7 Bf1 Nb7 Rd5 Bd7 Bd6 Qe7 Bc7 Nd6 Ba5 Be6 Be1 Bd7 Rh5 Qg6 Be2 Bh3 Rg5 Qg4 Nd7 Qc8 Rd8 Qee6 Bf1 Qh4 Nf8 Qeg4 Be2 Bb6 Bf1 Ba5 Be2 Bd2 Bf1 Be3 Be2 Bg1 Bf1 Bc2 Bc4 Bd3
B1nrQ3/2k2bQ1/1Qn5/BnrQ4/1RBr3B/1bb4p/q1P1KN2/RR5b b - - 0 1 illegal: No possible last move, all moves rejected
7n/BQr3Qq/2N1k1B1/1pN1B3/1Qr2rPn/N1bn4/1rbB1b1K/2Q1R3 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 f5 a4 h5 g4 d5 cxd5 g5 Ra3 h4 fxg5 f4 Rg3 f3 exf3 hxg3 f4 Bg7 f5 Bf8 h4 Kf7 d4 e5 a5 b5 a6 c5 g6+ Ke7 f6+ Kd6 h5 g2 Kf2 e4 Kg3 c4 a7 c3 g7 e3 f7 b3 h6 b2 h7 e2 Bd2 e1B+ Kh2 c2 Ne2 c1R Na3 b1R Nc3 g1N Na4 Rc5 Qc1 Ne7 g8Q Bf5 Bd3 Qc7 Qg7 Rc4 Nc5 Na6 Be4 Re8 a8Q Nb4 Qb7 Rb2 Bd3 Rg8 h8B Ng6 Bc2 Be7 f8Q Bf2 Bd3 Rc8 Bc2 Nh3 Re1 Nh4 Bb1 Bh7 Bg6 Nd3 Qf4+ Ne5 Qe4 Ng5 Qf4 Nf7 Qe4 Bf6 Qeb1 Ke7 d6+ Ke8 d5 Rf8 d7+ Ke7 d8B+ Kd6 Qe4 Nd3 Qd4 Qd7 Bb6 Rc7 Ba7 Qf5 Qdc3 B6d4 Qb4 Bc3 Qh6 Qh5 Be5+ Ke7 Qg7 Qh6 Qg8 Nh8 Qg7+ Rf7 Na6+ Kd7 d6 Ke6 d7 Rff4 Qg2 Qg5 Qb7 Qe7 d8N+ Kd7 Nc6 Ke6 Bh5 Be4 Bg6 Qd7 Qgf8 Qh7 Qh6 Bf3 Qhf8 Bd1 Qg7 Bc2 Nc5+
2N1N3/1QbRRNb1/2nQ1q1n/4Q3/R3pR2/3PKb1b/b5Q1/rq1r1Bk1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Qd6 Ba3 Bg7 axb5 Bf8 b6 Qd7 b5 Qd8 Bb4 axb4 Ke2 Kd7 f4 Kd6 g4 Kc5 d3 Kd4 d6 c5 d7 e5 g5 h5 g6 c4 g7 b3 b7 b2 b6 c3 f6 c2 f5 c1B f7 e4 f6 h3 Na3 b1Q Nc4 h2 Nh3 h4 Nd6 Bg5 Qc2 Ne7 g8N Nf5 Ne7 Nh6 Ne8 Nc6 b8Q Bf4 b7 Bg7 f8R Bc7 Ng5 h3 f7 Ra7 Rg1 h1B Ra5 h2 Ra4+ Nb4 Qa8 Bg2 b8Q h1B Qab7 Bh3 Rg4 Ra6 Rf4 Bf3+ Kd2 Ra7 Rg8 Be6 f8Q Ba2 Nf7 Rh7 Nd5 Qh4 d8R Bh3 Rd7 Qf6 Re7 Ra8 Nb6 Rh8 Nc8 Ra5 Ra3 Nc6 Ra4+ Qb4+ Kc1 Ke3 Qg2 Ra8 Rd7 Ra6 Qd6 Qb3 Qh1 Kf2 Kd2 Qb1 Re7 Bhe6 Qh3 Kg1 Ke3 Ra8 Qh5 Ra5 Qhe5 Bh3 Q8a7 Rc5 Qab6 Rc1 Qbb2 Rd1 Rf8 Ng8 Qc2 Rh5 Qe2 Nh6 Rh8 Rg5 Rh7 Rg2 Q2b2 Rc2 Rd7 Rcc1 Q2b3 Qa1 Ng5 Bf8 Rhe7 Bg7 Qc2 Qb2 Qd2 Ra1 Nf7 Qb1 Qg2+
Q3q3/1RrQ1q1Q/QNNKbNn1/8/1NP1p1B1/R1k2rr1/3nR2b/2n4n b - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 f6 h6 g4 Ba6 g5 Qc7 f5 Qd8 fxg7 Bb7 g6 Bc8 Bg5 hxg5 Ke2 d5 Kd3 Kd7 b4 Kd6 h4 Ke5 c4 a5 h5 a4 h6 a3 b6 a2 b7 g4 h7 g3 b5 g2 f6 Ra3+ Nc3 Nd7 b8N Qe8 f7 Ngf6 g8Q Ne4 b6 Nd2 Nh3 g1R Be2 Rg3+ Bf3 e6 g7 Bd6 b7 Nf8 Qa4 Ng6 f8Q Bd7 Qe7 Bc7 Rag1 a1N Qa6 Nab3 Ra1 Qf7 Nf4 Nc1+ Kc2 Bc8 Na4 d3+ Kb2 Kd4 Rh2 e5 Nb6 e4 Bg4 Be6 Qd7 Rc3 Ra3 Be5 Qf8 Bd6 Qfe7 Rc8 h8Q Rc7 g8N+ Be5 Re2 Rb3+ Ka1 Kc3 Nf6 d4 Nc6 Rf3 b8R Bd6 Nh3 Bh2 Rb7 Nf1 Qee8 d2 Ne7 d1Q Qg7 d3 Qdd8 d2 Nf2 Kb4 Qda8 Rh3 Qh7 Rbf3 Kb2 Qa4 Qed8 Qae8 Qd7 d1N+ Kc2 Ng3 Kd2 Nh1 Nc6+ Kc5 Kc2 Ne3+ Kc3 Rhg3 Qd1 Nf1+ Nd3+ Kd6 Kb4 Bc8 Ka4 Be6 Nb4+ Kc5 Qd7 Nd2 Ka5 Bd5 Nd8 Kd4 Kb5 Ndb3 Ndc6+ Kc3 Ra4 Nd2 Kc5 Be6 Kd6 Bd5 Ra5 Be6 Ra3+
N2N4/1Q5n/1q2R1Rq/rp1K2bR/nrNP3k/1R2r3/3Qr2B/Nqb3Q1 b - - 0 1 illegal: No possible last move
1B1Q3R/QBQ4r/P1K1p1r1/k4N2/B2B1n1b/1qn3Rb/2q1Q1Rn/n3b3 b - - 0 1 illegal: No possible last move, all moves rejected
q3n2N/2k1b1bR/P1np4/rq1N1r2/2q1B1QQ/2N4K/r5Q1/BN2B1rB b - - 0 1 legal: proof: d4 f5 b4 c5 dxc5 a5 e4 axb4 exf5 Nc6 f4 Nb8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Ke4 Bd2 Kd5 Bc1+ Kc6 a4 h5 f6 b6 Ra3 Ba6 Rg3 Bd3 Rg2 Bf5 gxf5 Na6 Rg3 Nb8 Rg4 hxg4 Kf2 e5 Kg2 g5 h4 b5 c4 e4 h5 g3 h6 d6 a5 e3 h7 b3 a6 g4 Bd2 e2 Be1 Bh6 f8Q b4 f7 b2 f6 b3 Qe7 Qc7 f8Q Bg7 f7 Nf6 Qg8 Ne8 f8B Qc8 Qh4 Kc7 Be7 Nc6 Bf6 Ra7 Be5 Qa8 Qgd5 Rf8 h8N Rf5 B5c3 Rb7 Qf3 Nd8 c6 Rbb5 c5 Ra5 Bd4 Kc8 c7 Nc6 Bf6 Kd7 c8B+ Kc7 Bb7 Ra2 Bec3 e1B Ne2 Bd2 Rh3 Bg5 Be1 Ra5 Be5 Be7 Nec3 Ra2 Bd3 Ra5 Nd2 b1R Be4 Rba1 Ndb1 b2 Qde2 R1a2 Qff2 Nd4 c6 Nf6 Bc2 Nd7 Ne4 Qa7 Qh5 Kb8 Na3 b1Q Qd1 Qb4 Nb1 Qb5 Qg5 Nf6 Rh7 Qa8 Qh4 Ne8 c7+ Ka7 c8N+ Kb8 Bd5 Nc6 Ba1 Kc7 Qg1 Bd4 Nb6 Bg7 Kh1 g2+ Kh2 g3+ Kh3 Qd3 Qh2 g1Q Qdg4 Qgd4 Nec3 Qb5 Bh1 g2 Be4 g1R Qhg2 Qdc4 Nbd5+
1b6/B2Q1PB1/B1p2K2/RQbQ1nnk/1n2bN2/N3Bq2/1Nq1r1r1/1Q5n b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 g5 g4 h6 f4 gxf4 g5 h5 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 Ke2 Kf7 Kd3 e5 Ke4 a5 d4 c6 h4 a4 d6 a3 d5 a2 f6 Kg6 b6 a1Q b5 f3 b7 g3 d7 g2 b6 f2 h5+ Kf7 Kf5 e4 d6 e3 h6 e2 h7 e1N Nh3 g1B Ba6 f1N Be3 Nh2 Na3 Qe7 Nf2 Qc3 Qb1 Nef3 Nd3 Ng4 Nb2 Bh2 Rd1 Qd8 Rd5 Nf2 Rb5 Be7 Ra5 Nh1 g6+ Kf8 f7 Kg7 Ke6 Ng5+ Kf5 Kh6 g7 Nf6 g8Q Nd5 Qe8 Rg8 h8N Kh5 Ng6 Bf8 Qe5 Ne7+ Kf6 Qc2 Qb5 Qe8 d8B Bf5 d7 Be4 Qd5 Nf5 Bc7 Rg7 d8Q Bc5 Q8d7 Bf4 Be5 Qf8 Bf1 Na6 b8Q Nb4 Ba6 Rg8 Qbb7 Re8 Qb8 Qh6 b7 Qh7 B5d4 Qf2 Qbe5 Qf3 b8B Rg7 Ba7 Bg3 Qee7 Bb8 Nf4+ Kh4 Qb7 Qh8 Qb6 Rh7+ Kg6 Rd8 Na4 Qe5 Bb2 Qc3 Qdd3 Qc2 Qbb5 Kg4 Qd2 Rh2 Bg7 Rg2 Nb2 Rd3 Qdd1 Rdd2 Qd7 Rde2 Kf6 Kh4 Q1d5 Kg4 Nh3 Kh5 Nf4+
1rRBQr2/Q1P1q1n1/1b2NN2/kN2pqb1/2n3rR/4QbR1/7K/b1R1N3 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kf2 a5 Kg3 e5 h4 d5 b4 Kd7 c4 Kc7 g7 Kb6 g6 d3 h5 d2 c5+ Ka7 b6+ Ka6 f6 a4 b7 d4 h6 d3 b5+ Ka5 f7 a3 c6 a2 c7 Bf5 b6 Kb5 h7 Qe7 Qe2 d1R Bg5 Nd7 b8R Be4 b7 Nb6 Rh4 Nh6 g8R Ka5 g7 d2 Nc3 Nc4 Rc8 Rb8 Nf3 Rg1+ Kh2 d1Q Nb5 Qd3 Qe3 Nf5 Rc1 a1B Ne1 Bf3 Bf6 Qed6 Bd8 Be7 f8N Bg5 Ne6 g3+ Kh3 g2 Kh2 Ra8 b8Q Qe7 Qb7 Rb8 Rf8 Qc2 g8N Ng7 Nf6 Qf5 Rf7 Rf8 h8Q Qe8 Rd7 Qe7 Rd2 Rf1 Rd3 g1B+ Kg3 Bf2+ Kh2 Rg1 Qh5 Rg4 Qe8 Bd1 Qe2 Ba7 Rg3 Bb6 Qe3 Bf3 Qa7+
2q2r2/2rnk2P/2bR1QQ1/rr3Q1K/n3B3/3p2Bn/1bnQ2N1/1N2NB1N b - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 b4 h5 g4 g6 g5 Na6 Ra3 Nb8 Rg3 Nh6 fxg6 Ng8 Rg4 hxg4 f5 Qa5 Kf2 Qb6 Ke1 Qd8 Kf2 d5 Kg3 a5 c4 e5 h4 a4 h5 a3 Kh4 a2 h6 a1N g7 g3 f6 e4 g6 g2 c5 e3 b6 e2 c6 e1R b7 d3 c7 d4 b5 d2 b6 d3 h7 Kd7 Nf3 g1N Kh5 Qe7 f7 Re6 Ne1 Na6 b8N+ Kd6 b7 Nb3 Nd7 Qe8 b8Q Bb7 c8Q+ Ke7 Nf6 Qb5+ Qe5 Qb4 Ne4 Na1 Ng3 Bc6 Qf5 Nc5 Qa6 Qd4 Qc2 d1R Bf4 Re4 Qd2 Na4 Rh3 Rc1 Nh1 Qf6 Bg3 Re5 Rh4 Rb8 Rd4 Nc2 Rd6 Qe6 Qb6 Ra5 Qa6 Nh6 g8Q Bg7 f8N Bb2 g7 Qc8 Ne6 Ng4 Nf4 Ne5 Nfg2 Nd7 Qb6 Nh3 Qd4 Rb6 Qf7+ Kd8 g8B Rbb5 Qg6 Ke7 Bd5 Rf8 Be4 Bd5 Bf2 Nb4 Kg4 Rc7 Bg3 Bc6 Kh5 Nc2 Qdf6+
3N1Br1/rb2R2Q/k2b4/NP1Q1K1b/q1Bp2n1/1b1NQbq1/B2B3Q/4q3 b - - 0 1 illegal: No possible last move
1RN2Qn1/1bK3b1/3QPb1b/4q3/2R1R1r1/1kQ2NN1/1qqR1pbQ/4r2B b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 b3 f5 Qc2 f4 Ba3 h6 Be7 Nc6 Qd1 Nd4 Bg5 Nf5 gxf5 hxg5 Kf2 Kd7 h4 Kd6 d4 a5 e4 c5 h5 c4 e5+ Kd7 f6 g4 h6 g5 h7 c3 b4 c2 b6 c1Q d6 Ke6 d7 Kd5 b5 a4 f7 a3 e6 a2 b7 Qc3 b8R Bg7 f8Q Qca5 b6 Bb7 Rh4 Qb4 Ne2 Kc4 d5 Qc3 d6 Qe5 Bg2 Qc7 d8N Ra4 d7 Bh6 Qd2 Kb3 Bh1 Qc2 Nc6 Rc4 d8R g3+ Kf1 g2+ Kf2 g4 Ne7 Re4 Ng3 Re1 Nc8 Qeb2 Rd4 Bg7 Rc4 Bh6 Na3 Qe5 Rc1 a1Q Rd1 Qab2 Qe2 Bg7 Rd2 Bf6 Qd6 Bg7 Qf1 Bf6 Nb5 Bg7 Kg1 f2+ Kh2 f3 Qg1 f1B Qgd4 Qef5 Qf6 Qfe5 Qff8 Ne7 Re4 Rg8 h8Q Bh6 Nc3 Rg7 Ne2 Ng8 Ng1 Qb5 N3e2 g3+ Kh3 Rg4 Qc3+ Ka2 Rc4 Qe5 Re4 f2 Nf3 g1B+ Bg2 Bh2 Rc4 Rd4 Re4 Bg7 Kg4 Bf6 Qa5+ Kb3 Bh1 g2 Ng3 g1B Qac5 Bg2 Qcc7 Qa5 Kf4 Bg7 Qcc5 Bh6+ Ke5 Qac3 Ree2 Rf4+ Qcd4 Rg4 Re4 Qe3 Qc7 Qg5+ Kd6 Qe5+ Kd7 Bg7 Qcd6 Bf6 Kc7 Bg7 Ne2 Bf4 Ng3 Bh2 Qc5 Bfh6 Qa5 Bc6 b7 Bf6 Nh5 B2f4 Ng3 Bhg7 Qc3+ Ka2 Ra8+ Ba4 Qe7 Bf8 Qh7 B4g5 b8Q B8g7 Qh2 B5h6 Na7 Bc6 Qf8 Bd5 Rb8 Bb7 Qd4 Kb3 Nc8 Qbb1 Qa1 Qba2 Qd4 Qab2 Qc3+
Q1N3RB/1bR2PN1/1bNr4/R1q4p/3N2bQ/2r1qb2/2Qb1Q2/nK1k3r b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 g6 exf5 Kf7 d4 cxd4 f6 Ke6 f7 Kd6 h4 Na6 g4 Bg7 f5 Kc5 f6 Kd6 g5 Ke5 Bh3 Nc5 Bg4 Kd6 Bf5 gxf5 g6 Bf8 Qg4 Ne6 Qd1 Ng5 hxg5 Ba6 Ne2 Bb7 Ng1 Bc8 Kd2 Ke5 c4 Ke4 Kc2 e5 b4 a5 g7 d5 c5 h5 c6 d3+ Kb2 a4 b6 d4 c7 a3+ Ka2 f4 b5 d2 b7 Kd3 b8R e4 b6 e3 b7 f3 g6 e2 Qa4 e1Q Nc3 d1B Bf4 f2 Nb1 f1R Bd6 Bf3 Be5 Qe3 Nh3 Ke2 Ng5 d3 Nd2 Bb4 f8Q Qdd4 Ne6 Ra6 Nb3 Nh6 g8Q d2 g7 d1B Kb1 Nf5 Qh7 Rd6 g8Q Bd2 Ng7 Qc5 Qh4 Nd4 Qc2 Rg1 Rh3 Rh1 f7 Bcg4 c8N Be4 Qh7 Rg8 Qf5 a2+ Kb2 Bc6 Rc1 a1B+ Kb1 Bg2 Rg3 Bc3 Ra8 Ba5 b8N Bb7 Nc6 Bb6 Ra5 Ke1 Qce4 Nc2 Nbd4 Na1 Qc2 Rh8 N6e7 Rh7 Ne8 Qb5+ Qb3 Rd5 Ncd6 Be2 Rc7 Rc5 Nec6 Rc3 Bh8 Qc5 Qbc2 Rh6 Qff4 Qf2 Rg8 Bg4 Qfg3 Bdf3 Ng7 Rg6 Qb8 Re6 Nc8 Rd6 Qf5 Kd1 Qa8 Qe2 Qf2 Qe3 Qc2+
B2n4/r1Nb3R/qN2R3/2nKb2Q/1PQ2pQ1/5n2/qN1k2pr/2rN1R1Q b - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 b5 a4 f6 axb5 Rh6 f4 Rh8 g5 h4 b3 fxg5 Bb2 h3 f5 e5 Bd4 Ba6 Be3 Bc8 Bf4 exf4 Nxh3 Bd6 Ng1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 h4 c5 d6 a5 b6 a4 b7 g6 d5 a3 d7 g4 h5 c4 h6 a2 d6 c3 f6 g5 h7 c2 f7 c1R Nh3 g3 Nd2 Kc3 b4 g2 Nc4 g1N Nf2 g4 Nb2 g3 Kd5 Qb6 d8N Qc7 e4 Be7 f8R Qb6 d7 Bg5 e5 Rb1 e6 Ra4 e7 Nh3 e8Q Bf6 Qeh5 Qa7 Qdg4 Rc1 Ne6 Ng5 d8Q Be5 Nc7 Kd2 Rf6 Qa6 Re6 Nc6 b8N Nf3 Bg2 Bd7 Qc8 Nd8 Nfd1 Ra3 Rb1 a1Q Rf1 Nb7 Rh1 Nh6 Rh3 Nf7 Qcg8 Be8 Nd7 Nfd8 Nb6 Bd7 Qgf7 Nc5 Rh2 Rg8 h8Q Re8 Q8h7 Rh8 Qe4 Rh6 Qfh7 Qa2+ Qc4 Qc8 Rh1 Ra7 Rf1 Qca6 Qh1 Rh4 Qhh5 Rh2 Ra1 Qb1 Ra3 Qa2 Re3 Bf6 Re7 Bc3 R3e6 Be5 Rh7 Ne1 Be4 g2 Bg6 Nf3 Be8 Bc8 Bc6 Bd7 Ba8
r2B1q2/Q3Rnbn/BRb5/1RKN1B1P/1p1QQq1n/1r4b1/2B1p3/2k3Q1 b - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 Bd7 cxd5 Bc8 b4 axb4 g4 h5 g5 g6 Na3 Be6 Nc4 Bd7 Ne3 Be6 fxg6 Bf5 Ng4 Bc8 f5 hxg4 Kf2 Kd7 Ke3 Kd6 Kd4 b5 a4 b3 h4 c6 f6 b4 g7 e6 h5 g3 f7 g2 g6 b2 a5 b1N a6 Qa5 a7 Qa2 Nh3 Nf6 g8B Nbd7 g7 Nh7 Nf4 Bb7 Ba6 Ne5 Re1 g1B+ Re3 Bf2 Qg1 Qb3 Ra5 Bg3 Rb5 Qa3 d3 Nd2 Re4 Rc8 a8Q Qa4 Qa7 c5+ Ke3 c4 Kd4 c3 Rb6+ Kd7 d6 c2 Nd5 Rc3 Rb5 Kc6 d7 Qa2 d8Q Rb3 Qda8 Qb1 Bb2 Qf1 Ba1 c1Q Re2 Be7 f8R Nf7 Rb8 Bf8 Bb2 Kd6 Re4 Bc6 R8b6 Qf4 Bc3 Nf3+ Kc4 e5 d4 Nh6 Be6 Nf7 g8B Bg7 Bf5 Qf1+ Re2 e4 Qe8 e3 Qe4 Nf6 Bgh7 Ra8 Bhg6 Nh7 Be1 Bh2 Bh4 Bg3 Bd8 Nh4 Qeg2 Nf6 Bc2 Nh7 Bgf5 Qe5 Qe4 Qe8 Nf6 Qf8 d5 Qf3 Qd3 Ke5 d6+ Kf4 d7 Qg4 Nd5+ Kf3+ Qd4 Qf4 Re1 Qh8 Kc5 e2 Rd1 Qg8 Qc4 Qe8 Rd4 Qh8 Re4 Qg8 Re7 Qf8 Qd1 Kf2 Qcd4+ Kf3 Qe4+ Kf2 Qdd4+ Ke1 Qg1+ Kd2 Bc7 Qf1 d8Q Kc1 Qd6 Ba1 Bd8 Bg7 Qgd4 Qf4 Qg6 Bf2 Qgg2 Bg3 Qgg1+
1rNQ3r/2B3Q1/2bR1N1P/2Bq1bNp/2p2q2/k1b4Q/2rnK2Q/1B4Bn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 gxh5 g6 h4 Bd6 h6 Bb4 h7 Bf8 b4 Nf6 h5 Ne4 h6 Nf6 Ra3 Ng8 Rah3 Bg7 R3h2 Bf8 Rh5 gxh5 e4 Kd7 d4 Kd6 e5+ Ke7 d6+ Ke6 b6 Kd5 d7 a5 b5 c5 e6 f5 e7 f3 e8N a4 b7 c4 b6 f4 Nd6 a3 Be3 f2+ Ke2 a2 Nd2 a1R N2e4 Ne7 Nf3 Nf5 Nfg5 Bg7 Qb3 Na6 b8Q Rc1 b7 Nc5 Nf6+ Kc6 Qa7 Ne4 b8Q Nd2 Rh4 Bb7 Nc8 Rc2 Qc3 Kb5 d5 Qa5 d8B Ka4 d6 Bc6 Qd7 Qb5 Bc7 Qd5 Qbb2 Rb8 Bc5 Rb5 Qh3 f3+ Kd1 Rb4 Bd3 f1B Rd4 f2 Qd8 Rb6 d7 Ng3 Qe7 Rb4 d8Q Nh1 Qef8 Bg2 Ke2 Rb8 Qfd6 Be4 Qdh2 Bf5 Qb7 Rb2 Bb1 Rc2 Rd3 Rg8 h8B f1Q+ Ke3 Qf4+ Ke2 Bf8 Bg7 Rh8 Bg1 Be7 Bf8 Bb4 Bfc5 Bc3 Rd4 Qf7 Rd6 Qd5 B7b6 Kb3 Qg7 Ka4 Bc7 Kb3 Bcd4 Ka3 Bc5+
N2B1Q2/1np4r/2QQP1B1/N6r/Q1p1q3/1n1bBbK1/1b1N4/2kBR1bb b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 e5 fxe5 b5 axb5 Qe7 Kf2 Qf6+ Ke1 Qd8 g4 h5 gxh5 a5 b4 Be6 b6 Ke7 b5 Bc8 Ra4 Ke8 Rb4 axb4 Kf2 Kd7 d4 Ke6 e4 g5 h4 f5 h6 g4 h5 f4 b7 b3 h7 f3 h6 b2 d5+ Kf7 e6+ Kg6 e7 Be6 e8B+ Kf6 e5+ Kf5 d6 Ke4 b6 Ra7 d7 Nf6 Qd6 Bg7 Kg3 f2 Ne2 Nc6 b8N Bd5 b7 Kd3 e6 Kc2 Nd2 b1B Nc3 Bf3 Na4 Nd4 Be2 f1B Nb6 Ra5 Na8 Nb3 Nc6 Rh5 b8Q B1g2 Re1 Bh1 Qb6 Qe7 d8B Nd7 Qbc5 Bb2 Na5 Qg5 Qb4 Qd5 Qa4 Nc5 Bg6+ Qe4 Qdc6 Nb7 Bd1+ Kc3 Qd6 Bd3 Qdc6 Rg8 h8Q+ Rg7 Qf8 Rh7 Be2 Kc2 Qfd6 Rg7 h7 Rf7 h8Q Rfh7 Nf1 Kb1 Bh6+ Kc2 Bd1+ Kb1 Nd2+ Kc1 Kf2 g3+ Kg1 g2 Kf2 g1B+ Kg3 Bc3 Qhf8 Bb2 Be3
N3q1RR/Nrbn1Q2/3b3Q/1n2b1NR/6BK/2P1r1p1/2rkpQ2/N3Rb2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 axb5 h5 gxh5 d3 exf5 d2+ Ke2 dxc1B Ke1 Rh7 Qg4 Rh6 Qd1 Rh8 h4 Kf7 f4 Kf6 Kf2 g5 Kg3 d5 b4 e5 c3 a5 h6 d4 h7 g4 h5 a4 h6 e4 b6 a3 b7 a2 b5 d3 b6 e3 Qd2 e2 Na3 Nd7 b8N Bg7 b7 Ra7 Bh3 Qf8 Nf3 Ne7 Nc2 Nd5 Na6 Qe8 b8N Rc7 Kh4 g3 Nc6 Rb7 Na7 Nc7 Bg4 Nb5 Nc7 Rg8 Rb1 a1B h8R Bab2 h7 Ba3 Ng5 Bd6 Na8 Bc7 Qe3 d2 Qf2 d1R Na1 Rd2 Rh2 Ba3 Re1 Rf8 Rg8 Rc2 h8R Rf7 Rh3 Re7 Rhh1 Re3 Rh5 Ke7 f6+ Kd6 f5 Kd5 f7 Kc4 f8Q Kd3 f6 Bad6 f7 Bge5 Qh6 Kd2 f8Q Nb8 Bf3 Bh3 Qf7 Nd7 Bg4 Bg2 Rb1 Bh3 Rhe1 Bf1 Rb4 Bd8 Rc4 Bb6 Rc8 Bbc7 Rh8 Qe6 Rcf8 Qe8 Rfg8
2n4N/Q2B2r1/1N1nbRR1/N1nk2qn/R6p/p7/2P1QbqQ/Q2KN1r1 b - - 0 1 legal: proof: d4 b5 h4 f5 g4 h5 a4 c5 axb5 cxd4 e4 g6 exf5 Qc7 Bg5 Qh2 gxh5 Qc7 h6 Qd8 Bf6 g5 h5 Bg7 Be5 Bf8 Bg3 Bg7 Bh4 gxh4 Ra6 Bf8 Ra3 Kf7 Ra1 Ke8 f4 Kf7 b4 a5 b6 e5 b7 d5 h7 d3 h6 d4 f6 Ke6 f7 e4 b5 d2+ Ke2 a4 b6 e3 f5+ Kd5 f6 Ra7 Bh3 Be6 Nf3 Bc5 f8N Nd7 b8Q Ne7 f7 Nc8 b7 Qg5 Rg1 Nf6 Qh2 Nh5 b8Q Rg8 h8N Rg6 Qf1 d1N h7 Nb2 Nbd2 Nc4 Nd7 d3+ Kd1 N4d6 Nc4 d2 f8R Rg7 Na5 a3 Rf4 Rb7 Ra4 Rb2 Rc1 Rb1 Qa7 Bd4 Ne1 Bb6 Ke2 d1N Bf5 Nf2 Rgg4 Nd3 Kd1 Nc5 Qfe2 Rb4 Rg3 Rg4 Rf3 Rg1 Rb1 Bd8 Rb6 Bf6 Ra6 Be5 Bg4 Bg3 Rf6 Bf2 Ne5 Bf7 Bd7 Be6 Nec4 Qg2 Ng6 Qg5 h8Q Qg2 Qe8 Qg5 Nh8 Qg2 Qf1 e2+ Kc1 Bh3 Nd3 Qg4 Re6 Qg2 Rg6 Nde4 Raf6 Ned6 Qd1 e1Q Qe2 Qef1 Kd2 Qg3 Qa1 Qfg2 Ne1 Be6 Kd1 Qg5 Nb6+
4kr2/1BrQnRpq/2Q1N2B/1Q2b2r/qnnRR3/2R1qBBP/3p4/5K2 b - - 0 1 illegal: No possible last move, all moves rejected
N2B1N1q/kQ3p1B/3b3Q/qp2QBP1/1n2B3/n2rnn1R/1Kn1N3/Q2b4 b - - 0 1 legal: proof: g4 a5 a4 b5 c4 g5 f4 e5 fxe5 Nf6 h4 Ra7 h5 Ng8 b4 d5 cxd5 axb4 Ra3 Bd6 Rf3 Ra6 Rf4 gxf4 g5 Bc5 Bg2 Rf6 Bf1 Rg6 hxg6 Bf8 e4 Kd7 d4 h5 Kd2 c5 Kc2 Kc7 d6+ Kb6 g7 c4 e6 h4 a5+ Kb7 e5 b3+ Kb2 f3 d7 h3 e7 h2 e8Q f2 d5 Qe7 d8Q Rh6 e6 Rf6 d6 Rh6 d7 Na6 Nf3 Qc5 e7 Nf6 g8B Nd5 Bd3 f1N Nh4 Nde3 Bf5 Rd6 Nc3 Rd3 Ne2 Qc7 Ng6 Nc2 Bd2 Nab4 a6+ Ka7 Bh7 Qa5 Qa1 Nfe3 Qc7+ Bb7 Qe5 Bf3 d8Q Bh5 Qdd5 c3+ Kc1 Bg4 Qec6 b2+ Kb1 Bf3 e8B Bd6 Nf8 Bh5 Qde6 Bg4 Qh6 Bh5 Rg1 h1Q Qce4 Qh2 Rh1 Bg4 Bc6 Qh5 Nd4 Bd1 Ne2 Qh2 Q5d5 Qe5 Rh3 Qh8 Qf4 Ne1 Qg3 Nbc2 Qge5 Nf3 Be1 Ba3 Ka2 b1N Kb3 Bd6 Bb7 Kb6 a7 Nba3 a8N+ Ka7 Bf2 Ncd4+ Ka2 c2 Kb2 c1N Qc6 Na2 Qd7 Nb4 Bbe4+ Ka6 Qc7 Ndc2 Qe7 Ned5 Bb6 Nde3 Bc7 Ka7 Qd7 Qb6 Bd8+ Qc7 Qc8 Qa5 Qb7#
Q1b2QR1/2P2b1R/N2n3K/2RB1BB1/1r2pbb1/1Q3b1k/p2n1q2/3BQ2q b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Qc7 f5 Ke8 Nc3 Qd8 h4 Na6 g4 Bh6 Nce2 Nb8 Nf4 gxf4 g5 Bg7 g6 Bf8 Bd2 a5 Rc1 Ra7 Be3 Rc7 Ra1 Rc3 Bd2 Rg3 Bc1 Rg5 hxg5 Qc7 Rh6 Qb6 Rh1 Qd8 Kd2 e5 b4 h5 c4 d5 c5 Kd7 b6 d3 f7 h4 c6+ Ke7 f6+ Ke6 b5 Kf5 b7 f3 Ke3 Kg4 c7 a4 b6 a3 g7 a2 g6 h3 Be2 e4 Qe1 h2 Nh3 d2 Nf4 d1B Ne6 Nc6 b8Q Bd6 f8Q Kh3 f7 f2 b7 f1B Qa8 Nh6 b8Q Qf6 g8B Nd4 g7 Nb3 Bh7 Nd2 g8B Qh4 Bh5 Bc4 Qb3 Bg4 Bf5 Qf6 Nc5 d4+ Kf2+ d3 Ke3 Bd5 Na6 Be5 Rb1 Bg3 Rb2 Be5 Rc2 Bf4+ Kf2 Qb6+ Rc5 Bc4 Bb2 B4e6 Bf6 Bd5 Bg5 Bde6 Bfh7 Nf5 B7g6 Nd6 Bf5 Bg3+ Ke3 Be5 Rf1 h1B Rg1 Bf3 Rh1+ Bh2 Qe8 Rh6 f8R Bf7 Qe7 Re6 Re8 Re5 Qf8 Rd5 Rd8 Rd4 Re8 Rb4 Rd8 Be8 Bd5 Bg6 Qh6 Bf7 Rg8 Nb1 Qf8 d2 Rh8 d1Q Rg1 Bg3 Rh7 Nd2 Rg2 Bh4 Kf4 Qa1 Bf6 Bg3+ Kg5 Be5 Kh6 Bf4+ Bg5 Qa7 Rb5 Qg1 Rc5 Qf2 Bfg6 Bgd7 Qg1 Be3 Bf4 Be2 Rg5 Qc1 Bf3 Bg4 Bf5 Qd1 Rg8 Qc1 Bg5 Bf4 Qe3 Qcf1 Qb3 Q1g2 Qe1 Qh1 Qa4 Bf1 Qc2 Bg2 Bd1 Bf3 Qb3
N1K5/krp5/1NR1n1r1/4Q3/1b2Q1b1/BP1n3N/1Q2pNb1/Q2bBBbn b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 h4 Bd7 g4 Bh6 h5 Bf8 Ra3 Qc8 Rf3 Qa6 Rf4 gxf4 g5 Qg6 hxg6 Bc8 Ke2 Kd8 d4 e5 d6 h5 g7 a5 d7 h4 b6 f3+ Ke3 h3 d5 h2 f6 f2 g6 a4 f7 a3 b3 a2 b7 a1N Nc3 Rh7 Ba3 Bb4 f8N Ra7 Nh3 Na6 b8N Nh6 g8Q Rg7 Qh8 Rg8 g7 Rb7 Qh5 Nc5 Nd1 Nd3 Qf3 Ke7 d8B+ Kd6 Bh4 Kc5 d6 Kb6 d7 Ka7 d8Q Bg4 Qd4+ Bc5 Rg1 h1B Nbd7 Bg2 Nb6 Bb4 Qb2 Nc2+ Ke2 e3 Na8 e4 Nd7 Nf5 Ndb6 Rd8 g8Q Rd6 Qd5 Rg6 Qa1 Bc5 Qhb2 Bd4 Nc3 Bc5 Qe5 Ng3+ Kd1 e2+ Kd2 Nd4 Ke3 e1B Nd1 Beb4 Rh1 Ne1 Kf4 e3 Qfe4 B2f3 Rg1 Nh1 Rg2 Bh5 Rg3 Ne6+ Kf5 Nd3 Rg2 Rg3 Kf6 Bhg4 Kf7 Bd4 Ke8 Be2 Kd7 Bdc5 Nc3 Bd1 Kc8 e2 Rg1 Rf3 Rg3 Rf6 Rf3 Rg6 Rf6 Bc2 Nd1 Bd4 Bg2 f1B Be1 Bg1 Ndf2 Bd1 Nf4 Rg5 Bh3 Bg2 Rg6 B2f3 Bf1 Bg2 Rf6 Rg7 N4h3 Rg6 Rf3 Ndf4 Rc3 Nd3 Rc6
1nQ1Bn2/BNb3r1/n3QB1p/3Q1r1N/N2q4/P2R2p1/pNB1K2b/1k4q1 b - - 0 1 illegal: No proof kernel
b3r1k1/1Bn2RQ1/B5Q1/pnrr3p/2r5/3B1pqR/bR1N1B1P/K2R2Q1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Nc3 f3 Nd5 d6 Nf4 d5 cxd5 gxf4 d4 a5 Kd2 f5 Kc2 Kf7 Kb1 h5 g4 c5 b4 c4 e4 f2 b6 c3 b7 f3 g5 f4 e5 Qf6 g6+ Kg7 d6 Rh7 d7 Be7 d8R Nd7 b8Q Nh6 b5 Bd6 e6 Nc5 d5 Nb7 e7 Nf7 e8B Ne5 b6 Nd3 Rd7+ Qe7 Ra3 c2+ Ka1 Rh6 Qc7 Nb4 Bd3 f1R Qc3+ Be5 d6 f2 Be3 Na6 Nf3 Nc7 Nd2 Kg8 g7 Qh4 Rf7 Qg3 d7 Rc6 d8Q Rc5 Qf6 Be6 Qg6 Ba2 Beb5 Re8 Ba6 Nd6 b7 Ndb5 b8R Bd4 Qc1 Rd1 Qb1 f1B Bf2 c1R Rb6 Nd6 Rb2 Bg2 Re1 Ba8 Rab3 Rc2 Rh1 Rdc1 Rd1 Rd5 Bb7 Qe3 Bda6 Ndb5 Qg1 Qg3 Ra3 Kh7 g8B+ Kh8 Bh7 Bg7 Bd3 Kg8 Ra4 f3 Rh4 Rde5 Rh3 Rd5 Qf6 Rcc5 Qg6 R1c3 Qc2 R3c4 Qc1 Qg4 Qc3 Qg3 Qcxg7#
K1bQq2q/7R/2B1Q3/krp1Qp1b/2b2Rp1/1r2nN2/1RP3Bq/1RQ3B1 b - - 0 1 legal: proof: e4 b5 a4 e5 axb5 Nc6 d4 exd4 f4 Na5 e5 Bd6 e6 Be5 fxe5 Nc6 Qg4 Nb8 Qh5 Kf8 Qd1 Ke8 g4 f5 g5 Na6 Ra3 Nc5 Ra4 Ne4 Ra1 Nef6 gxf6 Ba6 Nd2 Bc8 Ne4 h6 Nf2 h5 Ng4 hxg4 Kf2 g5 h4 d5 b4 a5 f7+ Ke7 b6 d3 Ke3 a4 Kd4 c6 Kc5 g3 b7 d2 b8Q a3 h5 d4 h6 d3 b5 g2 b6 a2 h7 Qe8 f8Q+ Kd8 b7 Ra5+ Kb6 c5 e7+ Kd7 Nf3 g1Q Rh4 Ra3 Bg2 Nh6 Rf4 Ng4 Rb1 Rb3+ Ka7 Kc6 e6 Kb5 Ka8 Ka5 Qe5 a1Q b8R Ne3 Rb2 Rg8 h8R Qh2 Rh7 Rg6 Qf1 d1B Rb7 d2 Qfh8 Qb5 e8B Be2 e7 d1B Bc6 Bc4 e8Q Rg7 Rb6 Rb7 Q8e6 Qba4 Rb4 Rb5 Bd2 Bde2 Qc1 Bd1 Rb1 Qd4 Bc3 Qd8 Qhf6 Qh8 Be1 Bde2 Bf2 Bd1 Bg1 Bde2 Nd2 Bh5 Nf3 g4 Qd8+ Rb6 Bb7 Qd7 Bc6 Qde8 Qdd1 Rb5 Qdd4 Rd3 R4b2 Rdb3 Qd8+
2Q2N1B/2n3Kb/RB1P4/5Nb1/3r1pp1/1N2b1n1/1pNQQ2k/BqqBn3 b - - 0 1 illegal: No possible last move, all moves rejected
Rn1n2R1/1Q3pPQ/2p4n/rN2N1np/3R1K2/NR5N/1qn4Q/k2B1bb1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 Nc6 h4 Bd7 b3 Bf5 h5 Bc8 Bb2 Nb8 Bf6 Ra6 f4 gxf4 g5 e5 Be7 Rb6 Bc5 Rg6 hxg6 e4 Bf2 e3 Qc1 exf2+ Kd1 Bf5 Qc2 Bg4 Kc1 Bd7 Qd1 Bc8 d4 Ke7 Kd2 Kd6 e4 h5 e5+ Kd7 d6 Ke6 b6 Kd5 b7 a4 g7 f3 Ke3 a3 b4 a2 d7 Bd6 e6 Rh7 b5 Bh2 b6 Nh6 g8R Na6 b8Q Bb7 e7 Rg7 e8N Qf6 Nh3 Bg1 d8N Bc6 b7 Bb5 Qa7 Nb8 g6 Bd3 Nc6 Kc4 d5 Qb2 Qe2 Kb3 Ne5 c6 d6 Ba6 Bg2 f1N+ Kf4 f2 d7 Nh2 d8Q f1N Bf3 Nd2 Nc7 Ne4 Na3 Ng5 Qe8 Bc4 Ncb5 Bd3 Bg4 Nhf3 Qh2 Bf1 Qb6 Nd4 Bd1+ Qc2 Qd7 Kb2 Qf5 Qe2 Rc1 a1N Rb1+ Ka2 Rb3 Nac2 Qa6 Ka1 Qe4 Rh7 g7 Rh8 Qh7 Nde6+ Kg3 Nd8 Kf4 Nd7 b8R Qg2 Ra8 Nb8 Qb7 Qd2+ Kg3 Qc3+ Kf4 Qb2 Re8 Bd4 Rg1 Ba7 Rgg3 Bg1 Rgd3 Rg8 Re6 Re8 Rd4 Re7 Red6 Rd7 Re6 Rd5 Re8 Rc5 Rg8 Rd5 Nc7 Ra5 Ncb5
KRn3r1/1p3QQp/1b5N/2B2nNn/PB1n4/k2p1N1n/1q2BQN1/1b4B1 b - - 0 1 illegal: No possible last move, all moves rejected
2N4r/b2Q2nB/KN2R2p/pQ4q1/rN3Q2/1N2rB2/1rp3PQ/2Bq1k1b b - - 0 1 illegal: No proof kernel
1R3K2/N1Q5/4q1p1/NNQb2qq/pRQr1P1p/2nNb1k1/R1n3B1/1qQ5 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 f5 a4 fxg4 axb5 Be7 d6 Bf5 d5 Bf8 Be3 Bd7 Bd4 Bc8 h4 exd4 h5 a5 h6 g6 Qc2 Ne7 Qb3 Rg8 Qc2 Rg7 hxg7 Ng8 Qd1 Kd7 Rh3 Qe7 Rd3 Ba6 Qd2 Nf6 Qd1 Nc6 Ra2 Rd8 Rg3 Bc8 Qa4 Nb8 Nh3 Re8 Rb3 Qd8 Ng1 Be7 Rh3 Rh8 Ra1 Ke8 Qd1 Ng8 Rh1 Bf8 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 c5 e4 h5 b4 g3 f4+ Kh6 d7 d3 Ke6 h4 Kf7 g2 d6 a4 e5 c4 e6 d2 b6 c3 b5 c2 b7 c1Q b6 Qc2 e7 Qc1 e8Q Qdc7 Nc3 Na6 b8N Nb4 b7 Qc2 Nb5 Qb6 d8Q Qb2 d7 Qd6 Qe3 Ne7 g8Q Nc2 Ne2 Kh5 Nc6 Kg4 b8R g1Q Bg2 Nd5 Nca7 Bb7 Qc7 Qb1 d8N Nc3 Qc1 d1Q Qec5 Bd5+ Ke8 Be7 Ndc6 Qe6 Na5 Bf6+ Kf8 Bd4 Rh3 Be3 Ra2 Rh7 Rh2 Rd7 Rb2 Rd6 Rb4 Rd7 Qh8 Rd6 Qhd4 Rd7 Qdc4 Rd6 Ned4 Kg3 Ndc6 Qh5 Ne5 Bc6 Nb7 Rd4 Na5 Bd5 Nd3 Qgd1 Be4 Qdg4 Rd2 Qgg5 Bg2 Ne1 Rdb2 Nc2 Ra2
3kqN2/RrBP1QrB/rr3p1n/bRpK4/4R1n1/6Q1/Qp3Qq1/R6B b - - 0 1 legal: proof: f4 e5 fxe5 a5 b4 axb4 g4 d5 c4 f6 cxd5 h6 g5 Bg4 g6 Kd7 Nc3 Be6 Ne4 Bf7 Ng5 hxg5 gxf7 g4 Kf2 c5 Ke3 g5 Ke4 b5 a4 b3 h4 b4 d4 g3 h5 b2 d6 b1Q+ Kd5 g4 e4 b3 a5 g2 h6 g3 h7 b2 e6+ Kc8 e7 Nd7 e8R Rb8 e5 Qc2 a6 Qf5 a7 Qg5 a8Q Qg6 e6 Qh6 e7 Bg7 f8Q Qh4 Qd3 Qh3 Qa2 Rb6 Qf7 Bf8 Nf3 g1R Ne5 g2 Bf4 Qg4 Ng6 Qh4 Qg3 Nh6 Bd3 Ne5 d7+ Kc7 Bf5 Rg8 h8R Qb8 d8Q+ Kb7 Be4 Bg7 Nf8 Neg4 Bh7 Qh3 Bc7 Re1 Qf2 g1R Qd6 Re6 Qdg3 Ra6 Rh2 Reb6 Rh1 Rg2 Rhe1 Rg1 Re4 Qg2 Rd8 Re1 Rd7 Kc8 e8B Re3 Re7 Reb3 Bc6 Rb7 Ke6 Qa8 d5 R3b6 d6 Qb8 Kd5 Qa8 Ne6 Bf8 Rd7 Be7 Nf8 Rg7 Bd8 Rb8 Ra7 R8b7 Bc7 Bd8 Ng6 Qf1 Rhe8 Qg1 Nf8 Qb8 Rb4 Qg2+ Ree4 Qa8 Bb8 Bc7 d7+ Kd8 Rb3 Bf4 Bd6 Bd2 Rb5 Ba5 Kc4 Qh3 Re7 Qb8 Bf3 Qc7 Bh1 Qg2 Re4 Qc6 Bb8 Qc7 Kd5 Qe5+ Kc4 Qe7 Kd5 Qe8 Bc7+
Nn2B3/2n1QBbp/r1QB3b/R1r4P/1pN2Qp1/Bb6/4Q1Kb/Nkb5 b - - 0 1 legal: proof: b4 b5 e4 d5 exd5 f5 a4 c5 axb5 cxb4 g4 Bb7 f4 Kd7 g5 Bc8 Ra6 Qe8 Re6 Qg6 Re4 fxe4 f5 Qf6 gxf6 Ke8 Kf2 Kf7 d4 g5 h4 e5 c4 a5 h5 e3+ Kg2 g4 b6 e2 b7 e1B c5 e4 d6 a4 d5 e3 d7 a3 d8N+ Ke8 f7+ Kd7 f6 e2 c6+ Kd6 c7 Ke5 d6 Ke4 d7 a2 Ne6 a1B d8Q Na6 b8B Bd6 f8Q Bd2 f7 Kd3 Qh6 Bd7 c8B Nf6 f8Q Ne8 Nf3 Bg7 Nc7 Bd4 Qff4 Bf6 Na3 Bf8 Nd4 Be6 Nc4 B6g7 Ba3 Bg8 Qe1 Bc1 Nb3+ Kc2 Qc6 Kb1 Bd7 Ra7 Qef2 e1B Na8 Nec7 Qe2 Bg3 Qde7 Bh2 Be8 Bh6 Na1 Bfg7 Rg1 Be6 Bf7 Rf8 Be8 Rf5 Rh1 Rc5 Rg1 Nd5 Bd6 Ndc7 Bf7 Nb8 Rh1 Bg3 Rh3 Bh2 Rd3 Re5 Rd5 Ra6 Ra5 Rc5 Qef3 Bd5 Bd3+ Ka2 Bdg6 Be6 Be8 Bd5 Bgf7 Kb1 Ne3 Be6 Qe2 Bb3 Nc4
N3Qqk1/RP4Q1/4p2p/Q3KRp1/1r3Bp1/1nn2Qr1/NN3b1R/bq2N3 b - - 0 1 legal: proof: e4 b5 g4 f5 a4 fxg4 axb5 d5 exd5 c6 b6 Be6 Bc4 Bd7 Bf1 Bc8 b4 g5 h4 Be6 b5 Qc8 h5 Bd7 b7 Qd8 b6 Bf5 Bb5 Bg6 hxg6 cxb5 Ke2 a5 Kd3 a4 Ke4 a3 d4 h6 f4 e6 c4 b4 g7 Kf7 d6 a2 f5 b3 f6 b2 c5 Ra7 d7 Na6 b8N Qe7 d8Q Qe8 b7 Be7 c6 Rh7 c7 Ra8 c8N Bb4 d5 Qf8 d6 Qe7 d7 Nc7 Qf3 Ba5 Bf4 Nb5 Nc3 b1Q+ Ke5 Qg6 Nb6 Qc2 Nc6 Qb4 Nca4 Nc3 Rh2 Qf8 Nb2 Ne7 Qe8+ Kg8 d8Q Nf5 Nb4 Qb1 Qc7 Rc8 Na8 Bb6 Qc5 Rh8 Qa5 Bf2 f7+ Kh7 g8R Rc4 Rg6 Nd4 Rf6 Nb3 Rf5 Rd4 Qe4 Rd3 Nf3 Rg8 Ne1 Rg3 Qf3 Rg6 Qd1 Rf6 Qf3 Qc1 Rb1 a1B Na2 Qc2 Rd1 Qb1 Rd6 Qg8 f8Q Rf7 Qfe7 Qf8 Ra6 Kg8 Qf6 Rc7 Qfe7 Rc4 Ra7 Rb4 Qg7+
1R1qNBQ1/kN4p1/3n2Rp/1Qb1n2b/Rp3bnp/3P2rN/K1N1R3/5Q2 b - - 0 1 illegal: No proof kernel
2Q4K/2Rb1Rr1/k3p2R/1r1QN3/3pq1q1/n1BPR2p/N2rp1Nb/2Q4Q b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 b4 g6 bxc5 Nf6 f5 Ng8 f6 Bg7 Nf3 Bh6 Ng1 Bf8 g4 Bg7 h4 Qc7 g5 Kf8 Bh3 Ke8 Bf5 gxf5 Rh2 Qd8 Rh1 Nc6 h5 Ne5 Kf1 Bh6 Ke1 Ng6 hxg6 Bf8 Ke2 h5 Ke3 d5 Kf4 Kd7 Ke5 Kc7 c4 Kb7 c6+ Kb6 c7 a5 f7 h4 c5+ Ka7 b6+ Kb7 g7 f4 g6 f3 c6+ Ka6 d3 e3 b7 a4 Bb2 d4 Ne2 a3 Bc3 a2 Nf4 e2 Qc1 Qe8 Ng2 Bh3 c8Q Bd7 c7 Nf6 g8Q Nd5 g7 Nb4 Qh7 Ra7 g8Q Nc2 Re1 Bh6 f8R Na3 Rf7 h3 Qe4 Be3 Qd5 Bg1 b8N+ Kb6 Nc6 Bh2+ Qg3 Rb7 Qgf4 Rh7 Qd1 Ka6 Qc1 Bg1 Qh2 Rg7 Qh1 Qg8 Qd8 Rb2 c8R Rb5 Rc7 Qh7 Qb8 Qg6 Qd8 Qg4 Qc8+ Kb6 Rf1 f2 Rf3 Bh2+ Rg3 Bg1 Re3 e6 Kf6 Bh2 Ne5 Rg8 Kf7 Rg7+ Kf8 Be8 Rg1 f1Q+ Rf7 Qff5 Rf1 Qfh5 R1f6 Qe4 Rc7 Bd7 Rh6 Rh7 Kg8 Rg7+ Kh8 Qhg4 Bb2 Ka5 Nc3 Kb6 Rb1 a1R Na2 Ka5 Bc3+ Kb6 Rb7+ Ka6 Rb4 Rb1 Rc4 R1b2 Rc5 Rd2 Rcc7 Be8 Rf7 Bd7 Rc7+
3knR1N/1Q1rQ1N1/5Nnp/rbp1B3/R2p4/3RN3/Kp4qP/n4nQR b - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 e5 dxe5 a6 b6 Ne7 b7 Ng8 b4 Be7 b5 Kf7 b6 Bh4 Bg2 Be7 Bc6 Bf8 Bb5 Ke8 c3 axb5 Bg5 b4 Bh6 b3 Bc1 Bb4 cxb4 Ra3 Qd3 Ra4 Qd1 Ra8 Kd2 c5 Kc3 d5 Kb2 g5 f4 h6 e4 d4 f5 g3 b5 g2 e6 g4 f6 g3 e7 Qd5 e5 Nc6 b8R Qe4 f7+ Kd7 e8N Ra6 f8Q Nd8 b7 Qh4 b6 Qf6 Nc3 Qc6 Ng7 Ne6 Nh3 g1N Ng5 g2 Bf4 Nf3 Ra4 g1N Nd5 Ne1 Nf7 Ra5 Ne3 Rh7 Nh8 Ngf3 Bg3 Nc2 Qg1 Ne7 Ra8 Nf5 b8R Nc7 b7 Ne8 e6+ Kd8 Be5 N3h4 Qf7 Ng6 e7+ Kd7 Kb1 b2 Ka2 Qg2 Ra6 Ng3 Rf6 Qh3 Rf3 Na1 Ra8 Nf1 b8Q Ba6 Qb7+ Nc7 Rb8 Bb5 Rf8 Qg2 e8N+ Kd8 Nf6+ Ne8 Rf2 Qg5 Rd2 Qg4 Rd3 Qg2 Ngf5 Rg7 Qe6 Re7 Ng7 Rd7 Qe7+
B2n3Q/1n1p1N2/3B1NQn/1kN4K/1Q1qn1Bb/1n1N3r/3P2n1/rQR2b1n b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 Ke2 e5 Kf3 h5 c4 a5 g4 h3 f6 a4 c5 b3 g5 h4 Kg4 b2 f4 h2 c6 h3 f5 a3 g6 a2 f7+ Ke7 b7 Kd6 g7 Kc5 f6 a1N c7 e4 b6 e3 Na3 b1N Qc2+ Kb4 Nf3 e2 Ne5 e1N Be2 Nb3 Nd3+ Ka5 Nc4+ Kb5 Nce5 Rh7 Ba3 Ra5 Bd6 Nc6 b8Q Ba6 c8B Be7 f8N Ra1 f7 Bh4 b7 Nh6+ Kh5 Nc3 g8N Ng2 Rc1 h1N Nf6 h2 Ne6 Qb6 f8Q Nf2 Bg4 h1N Nf7 Nfe4 Nec5 Nd8 Qh8 Na4 Qb1 Qa7 Qg8 Rh8 Qg6 Qb6 Qa8 Qa7 b8Q+ Qb6 Ne6 Nac5 Bb7 Qa7 Bd5+ Ncb7 Nec5 Rh7 Na4 Qd4 Nac5 Nc6 Qh8 Ncd8 Qb8 Kb6 Nf4 Bf1 Nfd3 Kb5 Qa8 Ne6 Qaf8 Ned8 Qe7 Na5 Ba8 Nab7 Qef8 Be1 Na6 Qc5+ Be5 Qd4 Qa3 Bg3 Bd6 Bf2 Nac5 Nf5+ Qh6 Be1 Kg6 Bg3 Q6g7 Rh3 Qgh7 Bh4 Kh5 Nh6 Qg6 Kc6 Qa4+ Kb6 Qa3 Kb5 Qb4+
7K/Qr1B2R1/1R1r1r1N/5pR1/Q3kP2/NbQn4/Nr1bq3/Rqnn1qN1 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Be3 Ba6 cxd5 Qd7 d6 Bc8 d5 Qd8 Bd4 exd4 Kd2 Kd7 Kd3 h5 Ke4 f5+ Ke5 a5 b4 c5 e4 d3 g4 d2 f4 h3 g5 h4 g6 a4 g7 c4 b6 a3 b5 c3 b7 c2 b6 Na6 b8R a2 b7 Rh7 Qf3 Nh6 g8R d1R Rg5 Qe8+ Kf6 Nb4 e5 Ra6 Na3 Qe7+ Kg6 Ng4 Bb5+ Rc6 Qb3 Nf2 Qa4 Rf7 Rc1 Bg7 Kh7 Rd2 Rb1 a1R Re1 Ra2 Ra1 Rb2 Qa5 Bf8+ Kh8 Qe6 Qa7 Be7 Rg7 Bd8 Rh2 Ba5 Rhg2 Rd1 R2g5 h2 Nf3 h1Q Qe3 Qh3 Ng1 Qf1 Ba4 Kd8 d7 Kc7 d8N Qe7 Qd3 Rcf6 Nc6 Be6 d6+ Kd7 Qg3 Bb3 Qh3 Ke6 d7 Kd5 d8N Qe6 Bb5 Re7 Nf7 Rd3 Ba4 Qb1 Qe3 c1N Nh6 h3 Qg3 Nd1 Bb5 Na6 Nb4+ Kd4 Bc6 Nc5 Na2 Bd2 Be8 Qa6 e6 Ke4 Bb5 Rdd7 Qc3 Rd6 Ba4 Qe2 Bb5 Rc7 Bd7 N5d3 e7 Ra6 e8Q+ Rae6 Qg8 Rd6 Qgc4+ Rd4 Nf3 h2 Qb5 h1Q Qa4 Qhf1 Ng1 Qh3 Rf8 Qhf1 b8Q Ra7 Qb6 Rc7 Rb8 Ra7 Qba6 Rc7 Rb6 Rb7 Q4a5 Rd5 Qa7 Rdd6 Qa4+
2Qn4/1npqN1B1/1r1BbKb1/1qNR4/1r1N1B2/n2Q4/1NPQqk2/bB2n3 b - - 0 1 legal: proof: d4 b5 b4 e5 dxe5 h5 a4 f5 axb5 f4 g4 hxg4 Ra3 Ba6 Rc3 Bc8 Rg3 fxg3 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 h4 d5 f4 g5 e6 a5 e7 g2 e8N g3 h5 Kg4 Ke5 a4 b6 d4 b7 d3 h6 d2 h7 a3 b5 a2 b6 a1Q+ Nc3 Ra6 f5 Nh6 f6 Nd7+ Ke6 Qa4 b8Q Qb5 f7 Bg7 f8B Nf7 Nd5 Ba1 Nf3 g1N e4 g2 e5 Kg3 Ne7 g4 Rh5 Ne2 Nd4 g1N Nd6 Nf3 b7 Nc3 Bc4 Ne1 Ba2 Rb6 Bb1 Nc5+ Kf6 Kf2 e6 g3 Rd5 g2 Nc4 g1Q Nb2 Qg4 Bg7 Re8 h8B Qdd7 Qa7 Rf8 b8N Nb7 Na6 Qge2 Nc5 Re8 Qa8 Nfd8 Qa5 Rg8 Bf8 Rg4 Bhg7 Re4 Nec6 Rh4 e7 Rg4 e8Q Re4 Ba2 Nb1 Bd6 Na3 Ne7 Rg4 Bb1 Rh4 Nde6 Rb4 Qh8 Qe8 Nd4 Be6 Qa6 Qed7 Qh6 Qec4 Qg4 d1B Bcf4 Qd3 Qf5 Bh5 Qh3 Qf1 Qd3 Qe2 Qa8 Bg6 Qc8 Rc6 Bh2 Ra6 Qhd2 Rb6 Bhf4
1B4B1/2Q2Kb1/n7/2pB1Q2/1nPn2rr/nRN1Bb2/r1n1NN2/k1Q1qn1Q b - - 0 1 legal: proof: d4 b5 b4 e5 dxe5 h5 a4 f5 axb5 f4 g4 hxg4 Ra3 Ba6 Rc3 Bc8 Rg3 fxg3 Kd2 Ke7 Ke3 Ke6 Ke4 a5 h4 d5+ Kd4 g5 f4 a4 c4 a3 e4 g2 h5 a2 b6 a1N h6 g3 h7 g4 b7 Qe7 b5 Na6 b8Q Bb7 b6 Bg7 Rh2 Nf6 Ne2 g1N Rh3 g2 Rb3 g3 Be3 c6 Nbc3 c5+ Kd3 d4 Qc1 Nf3 Qc7 g1R Bg2 Bc6 b7 Nd2 b8B Nb1 Bf3 Na3 f5+ Kf7 Bg2 Nd5 f6 Ke6 f7 N1c2 f8Q Qh4 Bh1 g2 Qf4 Qe1 Qf8 Rg8 h8Q Rf1 Qh7 g1N Bf3 Rh8 Qh1 Rh4 Bg2 Rff4 Qfc8+ Bd7 Qf8 Nf3 Qf5+ Ke7 e6 Rfg4 e5 Ra7 Qf4 Ndb4+ Ke4 d3 Kf5 d2 Qe4 d1N Qd3 Re4 Kg6 Nfd4 Bf3 Ref4 Bd5 Ra8 Qf5 Re4 Bf2 Nde3 Bg1 Nf1 Be3 Ke8 e7 Be6 Qa5 Kd7 e8N Ref4 Nd6 Rfg4+ Qg5 Bf5+ Kf7 Be4 Qf6 Bf3 Nde4 Ra7 Nf2 Ra8 Be6+ Kc6 Qf5 Kb7 Qd8 Kc6 Qe7 Kb6 Bd5 Ka5 e6 Ra7 Qd7 Ra8 e7 Ra7 Nb5 Ka4 e8B Ra8 Qc7 Ra7 Rd3 Ra8 Nbc3+ Kb3 Bd7 Ra7 B7e6 Ra8 Nb1+ Ka2 Rb3 Ka1 Nbc3+ Nb1 Qce5 Nc7 Ke7 Ra2 Bg8 Nca6 Qef4 Ng3 Qc7 Nf1 Qd2 Nba3 Kf7 Qc1 Qe1 Qb1 Qd2 Qe1 Qc1+
7b/KQ1q3q/1n4Rk/2r1p3/QN1rNRq1/1B1QP3/2q1nNRn/Q3n1Nb b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 b3 fxg4 Ba3 h5 Bd6 h4 Bg3 hxg3 f4 Kf7 h4 Kg6 d4 a5 Kd2 c5 Ke3 e6 b6 a4 h5+ Kh6 d6 g5 b4 g2 b5 a3 d7 g3 b7 a2 d5 g4 f5 c4 Kd4 c3 d6 c2 Kc5 c1Q+ Nc3 Qe8 Kb6 Kg5 d8Q+ Be7 f6 Qb2 e3 Qd7 h6 Ra5 h7 Qc2 f7 Bf6 f8R Nh6 Rh2 e5 Bc4 Ra4 Bb3 Rd4 Qe8 Bg7 Rc1 a1Q Rf4 Qab1 Ka7 Rf8 b6 Bh8 Qd3 Rf7 Ne4+ Kg6 Ne2 g1N Rg2 Nf3 Ng1 Ne1 Nf2+ Kg7 Qc3 Rf6 Qa1 Re6 Rh2 g2 Rd1 g3 Rd2 Qd8 d7 Ng4 Rh6 Nh2 Re2 Qe7 d8Q Nd7 b8N Bb7 Na6 Rc6 Nb4 Rc5 Rc6 Ba8 b7 Nb6 Qd6 Qe6 b8Q Kh6 Qd5 Qd6 Qb7 Qe6 Qe4 Qd6 Qd3 Qe6 Ngh3 g1N Rd6 g2 Qea4 Qd2 Rc6 Qdc2 Rd2 Ne2 Ng1 Bf6 h8N Qd7 Qdb5 Qch7 Qd3 Qc2 Nf7+ Kg7 Ng5 Kh6 N1f3 g1Q Nge4 Qgg7 Ng1 Qgg4 Rc8 Bg7 Rg8 Bh8 Rg6+ Kh5 Nd6 Qg5 Nd1 Qgg4 Qc7 Bh1 Ne4 Nc1 Rg2 Ne2 Qb7 Qc1 Rg7 Qc2 Ndf2 Kh6 Rg6+
6N1/2r2B1B/3N1b1Q/p1NRn1qr/1Q1p2QB/n2P2NQ/q1rq2b1/1k2b1K1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 f4 Kf7 Kf2 Kf6 g4 a5 c4 d5 c5 h5 d3 e5 c6 h3 c7 h4 b7 h2 b6 e4 Bg2 b3 Ne2 h3 Na3 b2 Ng3 b1Q Nb5 Be7 Nd6 Na6 b8N Nb4 b7 Rh7 Na6 Nh6 b8Q Bb7 c8B Nc2 Be6 Qa2 Qc8 Nf7 Nc5 Ne5 Bf7 e3+ Kf1 d4 Be4 e2+ Kf2 Na3 g5+ Kg7 g6 Kf6 g7 e1B+ Kf1 Ra6 Qe2 Rc6 Qg4 Rh5 Be3 Rc7 Bf2 Qd2 Rg1 h1Q Qd7 h2 Qh3 Qf3 g8N+ Kg7 Qc8 h1R f6+ Kf8 f5 Rh2 Rg2 Qfe2+ Kg1 Ba8 Bc4 Bb7 f7 Bf6 Ba2 Kg7 f8Q+ Kh7 Bc4 Qa2 Bf7 Qed2 Qe6 Qe7 Qb8 Bd5 Qb4 Qd8 Ne7 Kh6 Ng8+ Kg5 Qc8 Kf4 Qd7 Bh8 f6 Bg7 Bh7 Kf3 Nf1+ Ke2 Bh4+ Kd1 Qdg4+ Kc1 Ng3 Bh8 Rf2 Bg2 Rf5 Bg7 Bd5 Qe7 f7 Qeg5 f8Q Bf6 Bb3 Kb1 Qh6 Bb7 Qa4 Rf2 Bf7 Bg2 Qc4 Qdf4 Qa4 Rc2 Qc4 Qd2 Qc3 Ng6 Rd5 Ne5 Qb4+
2nRBkrR/2Q5/5Q2/bpnKRQr1/4N1Rn/p5Qn/1Pq1n1Br/4B2b b - - 0 1 illegal: No possible last move, all moves rejected
1r2B1RB/BQKQ2Qp/4bR2/1B2rr1P/1bb2k2/1rNnn1n1/7p/1Q1R2q1 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Ne7 Nc3 Ng8 Ne4 Bh6 Ng3 Bf8 h5 g5 Nf5 Nh6 Nh4 gxh4 Ra3 Ng8 Ra6 Bg7 Ra1 Bf8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 e4 a5 d4 c5 b4 a4 g4 a3 b6 c4 b5 a2 b7 c3 b6 h3 d6 h2 d5 c2 d7 Be7 d6 Nf6 Bb2 c1N Bb5 f3 Ne2 f4 Nc3 f2 Rf1 Qe8 d8R f3 d7 Na6 b8Q Nc7 b7 Qg6 Rg8 Ncd5 d8Q Ra3 Qd7 Rb3 Qa8 Bb4 b8B Ne3 Qab7 Qg7 Ba7 Nd3+ Ke6 Kf4 e5 Ne4 g5 Ng3 g6 Nc4 Qc2 Ne3 Rad1 a1R Qb1 Ra5 Ba1 Qf8 g7 Qc5 Re8 Rf8 g8Q Rf5 Qg7 Qd4 Rh1 f1B Rg8 f2 Rg1 Be2 Rf8 f1R Rf6 Nc2 Rg2 Qg1 Kd5 Re1 Kc6 Ne3 e6 Ra2 e7 Rab2 e8B Bf1 Qdf7 Be6 Kb6 Ng4+ Kc7 Re5 Qd7 Ne3 Qf8 Nc1 Qh8 Bfc4 Qhg7 Nd3 Qge7 Ne4 Rg8 Ng3 Qg7 Ra2 Bb8 Ra8 Ba7 Rb8 Qg6 Ne2 Rf7 Re4 Nd5+ Kf3 Bh8 Ng3 Rf6 Re5 Nc3+ Kf4 Qgg7
Rk3B2/q4p2/1r2Q2Q/1BBnRNRb/4p1r1/2bqP2n/2QQB1nn/3K1b2 b - - 0 1 illegal: No possible last move, all moves rejected
QQ6/nN1q1k2/1R1Nqnp1/2K1R3/2n1b1n1/rQ3BP1/N2qp3/bRRr2Q1 b - - 0 1 illegal: No extended proof kernel
2R3bb/pp2qQr1/1Q1qr1RN/4N1k1/2n2b2/1P6/3R1NB1/1bQRrnKQ b - - 0 1 illegal: No proof kernel
3R3Q/3NQ1bk/Q1npnp2/4B1RB/7K/bqrR1B1R/1n2bPb1/2r1Q2n b - - 0 1 legal: proof: c4 d5 cxd5 Kd7 a4 g5 h4 gxh4 d6 b5 axb5 Ke6 d7 Kd6 d4 c6 d5 Bb7 Nc3 Bc8 Ne4+ Ke5 d6 Qb6 d8R Kf5 d7 Ke6 Nd6 exd6 Nf3 Kf6 Ng1 Ke7 e4 Kf6 b4 Kg6 g4 a5 e5 h5 g5 h3 e6 a4 e7 h4 e8B h2 Ra2 c5 Bf4 a3 Rd2 c4 Rd3 a2 Nf3 a1B Be5 h3 Bg2 c3 Ke2 c2 Qe1 c1N+ Kf1 Qb7 b6 Kh7 b5 f6 Bh5 Qd5 b7 Bb2 b6 Nc6 b8Q Ba6 b7 Qb3 Qc7 Bg7 b8Q Nge7 Qbb7 Ng6 Qa7 Bc4 Qa6 Nf8 Qcc8 Ba3 g6+ Kh6 Qc7 Ne6 Rg8 Rc8 d8R Rh7 Qe7 Rh8 Bg3 Bb5 Ne5 Rh7 Bgf3 Bc4 Rg1 h1B Nd7 h2 Be5 Rh8 Rg3 Bb5 Bd1 Be4 Bdf3 h1N Kg2 Rc7 Re3 Be2 Kh3 Nd3 Kh4 Nb2 Rd3 Bd5 Rh3 Rh7 Bfg4 Bg2 Bf3 Nb8 Rc8 Rc1 Rc5 Nc6 Rd8 Bh8 g7 Rc3 g8Q Bg7 Qge8 Rh8 Bd4 Kh7 Rg5 Rf8 Ra8 Rc1 Qb8 Rc8 Be5 Rc7 Qbc8 Nb4 Qce8 R7c3 Rd8 Nc6 Qh8#
3Rnk1N/pQ4b1/3qrB1R/2Q1BBp1/3b1BR1/3Q3n/PR2bn1K/n2b2r1 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 hxg4 Nd2 f4 Ne4 Rh6 Ng3 fxg3 Bd2 Rh5 Bc1 Rh8 h4 b5 e4 g5 f4 d5 c4 g2 Kf2 b4 Kg3 d4 c6 b3 e6 b2 f5 b1N c5 d3 f6 d2 f7+ Ke7 c7 Nh6 e5 Qe8 c6 Bd7 c8Q Nc3 h5 Nb1 c7 Ng8 h6 Qd8 h7 Nf6 Bd3 Nh5+ Kh2 Na3 Nh3 g1N Rb1 Nf6 Rb2 Nc2 Bf5 Bb5 Qb7 Bd3 c8Q+ Nbd7 Nf4 Bg7 f8B+ Ke8 e7 Ne4 Qf3 d1B Ng6 Na1 Bf4 B3e2 Qd3 Nh3 Qc5 Nef2 Rg1 Kf7 e8R Rb8 Be7 Nf6 Rg2 Qd6 Rd8 Re8 h8B Rc8 e6+ Kg8 Qcb6 Rc1 Qc5 Rb1 Rg1 g3+ Kg2 Nd5 Bf6 Nc7 e7 Ne4 Kh1 g2+ Kh2 Nef2 Rh1 g1B+ Kg2 Rf8 e8R Rc1 Re4 Ne8 B6e5 Rf6 Rc4 Re6 Re4 Bf8 Bhf6 Bg7 Nh8 Kf8 Rd4 Ne4 Rc4 Bd4 Kh2 Nef2 Kg2 Ng1 Rh6 Ngh3 Kh2 Rc3 Qde4 Rg3 Qd3 Rg1 Bd2 Be3 Rg4 Bd4 Bdf4
3BNnR1/rpp1n1Nn/1b3p2/2Q4k/B2qB1b1/Q1P2Br1/Q1N4b/r3NK2 b - - 0 1 legal: proof: d4 a5 b4 axb4 f4 g5 fxg5 e5 dxe5 h5 Na3 Rh6 Nb1 Rh8 a4 Bh6 g4 Qf6 g6 Bg7 g5 Bf8 Ra3 Qe7 Rg3 Qd8 Rg4 hxg4 e4 d5 h4 b3 a5 b2 c3 d4 e6 g3 h5 d3 e5 g2 h6 Ne7 g7 Qd5 g8B Qd4 h7 Qd5 a6 Qd6 g6 Bd7 g7 Qc5 a7 Qc4 Qc2 Qd4 Be2 Na6 Na3 b1N Bf3 Rb8 a8Q Nc6 e7 Nc5 Bg5 Nd2 Qa2 Nde4 Nc2 Bg4 Q8a3 Ra8 Rh6 Nd7 Rg6 Nef6 Be4 Ncb8 Nf3 g1B Kf1 d2 Nfe1 d1R Bh4 Nc6 Qc5 Nb6 Qaa3 Ra1 Bf3 Kd7 e8N Bd6 e6+ Ke7 Qa2 Ra7 Qca3 Kd8 e7+ Kd7 Bg5 Bdh2 Nd6 Be3 e8N Ne7 Nf5 Kd8 Bh4 Nbd7 Qc5 Nf8 Qaa3 Nh5 Bf6 Kd7 Be4 Ke6 Bf3 Nd5 Bd8+ Ke5 Rg5 Kf4 Qa2 Ne7 Qca3 f6 Bb3 Rg8 h8Q Nh7 Ba4 Bf2 Nfd6 Kg3 Nf5+ Kh3 Qc5 Nf4 Qaa3 Ne6 Be4 Rf8 g8B Be3 Bf7 Rg8 Bh5 Nef8 Rg6 Rg7 Qg8 Beg1 Qga2 Rg8 Nfe3 Kh4 Rg7 Bf5 Bhf3 Bg4 Nf5+ Kh5 Qc6 Qe5 Rg6 Bb6 Qcc5 Qd4 Qc1 Rg7 Q1a3 Rf7 Rg8 Rg7 Qcc4 Rg5 Qcc5 Rg6 Bg2 Bf3 Bh1 Rg3 Bg2 Bg4 Bh1 Qd5 Bhf3 Qd4 Nfg7+
1Rn1N1q1/pq2b3/Rnp2Rq1/krQ4Q/p3b3/PQ4N1/2B1K1Nn/Qr5R b - - 0 1 illegal: No possible last move
2Q4b/Q2pbB2/QR4Bq/p2BN1N1/b1Nr1n2/Pkrp1bn1/b2B4/1N2K3 b - - 0 1 legal: proof: b4 e5 d4 exd4 f4 c5 bxc5 h5 g4 g6 a3 Ne7 f5 Ng8 Ra2 Qe7 Rb2 Qg5 Rb3 Qe7 Rg3 Qf6 fxg6 Qe7 g5 Qd8 Rg4 hxg4 e4 Ke7 c4 Ke6 h4 a5 h5 f5 c6 b5 h6 f4 c7 f3 h7 b4 c5 g3 g7 g2 e5 Kd5 e6 f2+ Kd2 b3 g6 b2 c6 Qg5+ Ke2 Kc4 e7 Nh6 e8N Na6 Nh3 g1B Bd2 Nb4 g8B+ Nd5 g7 Nf5 Bf7 Qh6 g8B Bb7 c8Q Be7 c7 Ra7 Qe1 Kb3 Nd6 Ng3+ Kd1 Ra6 Bd3 f1B Qf2 Rc6 Bdg6 Rc3 Ke1 Bb5 Nc4 d3 Qa7 Nf4 Ng5 Bf3 Qca6 Bd4 c8Q Ba4 Bd5 Be5 B8f7 Re8 Rh2 Bh8 Re2 Rg8 Re6 Rg7 Bh5 Rg6 Rc6 Rd6 Bhg6 Bd4 h8N Bg7 Bde4 Rd4 Bed5 Bgf6 Bh5 Be5 Ng6 Bh8 Nge5 Rc2 Nc3 b1B Bhg6 Ba2 Nb1 Rc3 Rb6+
B2QRQBR/3pb1p1/2Q4B/1N2q2r/4bnP1/2b1R2n/K2npr1Q/3kbR2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 axb5 h5 exf5 h4 Nd2 Qc7 Ne4 Qd8 Ng3 hxg3 Kd2 Kf7 h4 Kf6 f4 a5 b4 e5 c4 a4 Kc2 d3+ Kb1 g2 h5 a3 c5 d2 h6 e4 h7 e3 c6 Na6 b6 Rb8 b5 Rb7 c7 Qe7 Qf3 d1N Bc4 e2 Ka2 Nc5 Rh3 Qe6 Qc6 Nf2 Re3 Nce4 Nf3 g1B Nd4 Rb8 b7 Nd2 b6 Be7 Nb5 Nh3 Bb3 Ra8 b8Q Bf2 b7 Be1 Bc4 Ra5 Qa8 Qd6 b8Q Bb7 c8B Ra6 Be6 Qe5 Rb1 Ra4 Qa5 Rb4 Qd8 Ba8 Bb7 Rb3 Re4 Rf3 Re3 Rf2 Ra1 Nh6 Rb1 Nf7 Qbc7 Nfg5 Ra1 Re8 Bg8+ Ne6 h8R Rf8 Qh1 Rf7 Qh2 Rf8 Bg2 Be4 Qc4 Bd3 Ba8 Be4 Qdc7 Rc8 Qd8 Rc7 Qd5 Rc5 Qc6 Nf3 Kb3 a2 Rb1 a1B Ka2 Ba5 Bd2 B1c3 Rf1 Rd5 Bc1 Nd2 Bh7 Kf7 f6 Bab4 Bg8+ Kg6 f5+ Kg5 f7 Nef4 f8Q Nb1 Nd4 Nd3 Rg3+ Bd2 Nf3+ Kf4 Nd4 Bc3 Qff6 Rc5 Rgg1+ Ke3 Nb5 Rd5 Bb2 Be1 Rg3+ Kd2 Bc1+ Kd1 Bh6 Ndf4 Re3 Nd2 Qfd6 Bh4 f6 Qe7 f7 Rh5 f8R Qe5 Re8 Bg5 Q6e7 Bf6 Qf7 Be7 Qf8
rn6/1b5r/1R1p4/RN1r1p1N/bQ2p1NK/Q1RP2nN/B1R3Q1/b1kbq3 b - - 0 1 illegal: No possible last move, all moves rejected
1B1R1RN1/4K3/1b3pr1/Rk1N3p/2rQp2Q/2nqrN1P/3Q1nbp/4N1Qb b - - 0 1 illegal: No proof kernel
RRNR4/N1r2n2/1Q1RrNrB/k1nN4/p1bq3p/8/Pp2p2p/b1QQK3 b - - 0 1 legal: proof: e4 c5 d4 e5 h4 f5 b4 g5 bxc5 gxh4 Bd3 Na6 dxe5 Ke7 e6 Nb8 e5 Ke8 Be4 fxe4 f4 d5 c4 h5 g4 a5 e7 Kd7 e8R Kc7 c6 Kb6 g5 h3 c5+ Kb5 f5 b6 g6 h2 c7 d4 c6 a4 e6 d3 f6 e3 g7 e2 f7 h4 e7 Ka6 Bh6 b5 Na3 b4 Nh3 b3 Nf4 Qd4 Nd5 Be6 c8N Ra7 c7 Ka5 Rd8 Nd7 e8Q Nc5 Qc6 Rh7 Rf1 Ra6 Rb1 Be7 f8R Bf6 Nb5 Be5 Nde7 Bc4 R1f6 Rb6 Qb7 Re6 Rg6 Bf6 Nd5 Be5 Nba7 Bf6 Bc1 Nh6 g8N Nf7 Bh6 Bg7 Ngf6 Bh8 Rgg8 Rg7 Rd6 Rg6 Ncb6 Bg7 Ra8 Bh8 c8Q Bg7 Rgd8 Bh8 Ne3 d2+ Kf2 Bg7 Qcc6 Bh8 Nbc8 Bg7 Qch1 Bh8 Qc1 d1R Qhd5 Rd3 Ke1 Rc3 Qh1 Rc2 Ned5 Bb5 Nde7 Na6 Nfg8 Qb6 Qhd5 Ba1 Nf6 Rc7 Qd3 Qd4 Ned5 Bc4 Qdd1 Nc5 Rb2 Qe5 Rd2 Qf4 Rd3 b2 Rb3 Qe4 Qc6 Qe5 Rbb8 Qd4 Qb6#
qNr1r1Q1/b1p3R1/2kpN3/1R4p1/3RR2p/Q1n2bPB/2Qqnp1Q/5KN1 b - - 0 1 illegal: No proof kernel
1n1r4/1K1RNNP1/1Q6/R2RRn1N/1bN1b1kq/pNnb4/1q6/3BqN2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 b4 a5 h4 gxh4 Bb2 a4 Ba3 Ra5 bxa5 c5 Bb4 cxb4 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 e5+ d6 h5 d4 b3 f4+ Kh6 g4 h3 g5+ Kh7 f6 Kg6 f7 Kf5 a6 h4 d5 e4 b6 h2 g6 b2 g7 e3 a7 e2 a8N e1N b7 h3 Nd2 b1Q Nb3 Qf6 Kb6 Qfb2 d7 Na6 b8R Q1a2 d8N Qbb1 d6 Qg2 d7 Qgc2 Ne2 Ne7 Rb7 Qbb2 Qd6 Rh7 Ng3+ Kg4 f5 Qf6 Bd3 Qh6 f6 Nc5 Nf1 Qe2 Bc2 Ne4 Ka7 Qg2 Nb6 Nc3 Nc4 Nf3 Qb6 Ne5 Ne6 Qh4 d8N Qgf2 Nf4 Nd7 Nh5 Nb8 Rd7 Nf5 Rad1 a3 R1d5 Bc5 f8R Bb4 f7 Ba6 Re8 Rh8 f8N Qg2 Rg1 h1Q Ree5 h2 Ng6 Re8 Nf7 Rd8 Ne7 Qe1 Nb2 Bd3 Nc4 Qh4 Kb7 Qe1 Nfd2 Qh4 Rb1 Q1e1 Nf1 Qge2 Ra5 h1B+ Red5 Bhe4 Rd1 Q1d2 Re1 Qef2 Re3 Qfe1 Re2 Qdc1 Re3 Qb2 Re2 Bg2 Re5 Bge4 Bd1+
q3k1r1/b4PBb/1q1p2qB/R1BNR1RB/1BN2N2/3q3b/2b1R3/2K2n2 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 Kd2 h5 Nf3 f5 Ke1 f4 Ng1 Nc6 Qd3 Nce7 Qf3 Nf5 gxf5 Qe7 Qg2 Qd8 Qg4 hxg4 Kd1 g5 e4 a5 h4 g3 b4 a4 c4 g4 b6 a3 c5 f3 b7 a2 b8R g2 c6 f2 h5 g3 c7 d3 b5 d2 h6 Ba6 c8N Be7 f6 Qc7 f7+ Kf8 e6 Ba3 h7 Qf4 e5 Be7 b6 Nh6 b7 Qe3 Na3 Qf3+ Be2 f1B Rh5 Rg8 h8B Bd3 Nc4 Bd6 Rg5 Bc5 Nh3 g1Q Nf4 g2 N8b6+ Ke7 Rf8 Ng4 b8B Bh7 Ba7 Nh2 Bg7 Qd3 Bh5 d6 Ba3 Qgd4 Bb4 g1Q Bh6 Re8 Nbd5+ Kd8 e7+ Kd7 Rf5 Qg6 Rg5 Bh3 Bb6 Ra8 Re8 Nf1 f8B Ra7 Bfg7 Rc7 Ba7 Qb2 Bb6 Bf2 B6c5 Be3 Rb1 a1Q Ra8 Qaa2 Ra5 Ke8 Ra1 Qaa3 Rb5 Qa8 Raa5 Kf7 e8R Rb7 Rd8 Qbd4 Rd7+ Ke8 e6 Bg1 Rf7 Rd7 Rff5 Rf7 Re5 Qb2 Ba3 Qbd4 Rb2 Be3 Rc2 Qb2 Bcb4 Ba7 Bc5 Qb6 Bab4 Qd4 Rc3 Qde4 Re3 Qd3 R3e4 Qe3 Kc2 d1B+ Kb1 Qb3+ Kc1 Bc2 Re2 Qbd3 exf7+
4RN2/bN3r2/KB4Bb/2Rb2B1/R2r1q1R/1q4N1/rn1N1P1r/k1N3nq b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Be6 Qg4 Nc6 axb5 Nb8 b6 Bd7 b5 Bc8 Qb4 axb4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 c5 f6 h5 d6 b3 g5 h3 g6 h4 d7 b2 b7 h2 d3 h3 b6 Na6 Kb5 Kd4 b8N e5 f7 e4 b7 c4 g7 c3 Ra4+ Nb4 Ra2 c2 Bg5 c1B Be2 e3 Nd2 Kc3 d4 b1Q d5 Ne7 g8R Nf5 d6 Rh7 Rh8 Nh4 Bd1 e2 Bh6 e1R Be3 Bh6 f8N Qc7 d8N Qb3 d7 Rf7 Nbc6 Nd3+ Nb4 Nb2 b8R Bb7 Bg5 Qf4 Bc2 Nf3 Bg6 Rd1 Ra4 Bd5 Nb7 Ra6 d8B Ra8 Nf1 Be3 Ng3 Ba7 Ka6 Rd4 Nd3 Kc2 Bb6 Kb1 N1e2+ Ng1 Re8 Qg4 Nec1 Qf4 Rb4 Ka1 Ndc5 Ne2 Rf1 h1R Nce4 Ng1 Nd2 Rh2 Rd1 Rg2 Rb5 h2 Rc5 h1Q Rde1 Rh2 R1e4 Bg7 Rh5 Bh6 Rh4 Rc8 Rb5 Rcc4 Ra5+ Ra4 R4e5 Ra2 Ra4 Be4 Rea5 Bd5 Rc5
3QN2N/2r3Bb/n2nNP1b/n1B1n3/4Bq2/B2rn1B1/KR1Bk2n/2r1N3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 g5 g4 h6 f4 gxf4 g5 h5 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 a5 h4 e5 g6 a4+ Ka2 g3 h5 f3 b6 f2 g7 c4 b5 e4 h6 g2 h7 c3 b7 e3 b6 e2 Nh3 e1R Bd3 g1N Na3 f1N Nf4 c2 Rh2 Ra7 Ne6 Nf6 g8N Na6 b8B+ Qc7 b7 Ne3 Bd2 Ne8 Nf6 Nf3 Be4 Bh6 Rg2 Rf8 h8N Nh2 Rf2 Rf7 Re2 Ra8 Ba7 Rg1 b8B c1N+ Kb2 Rh1 Nc2 Nd3+ Ka2 a3 Ne1 Ne5 Bb6 Rd7 Rf2 Ra7 Re2 Ke7 Bc5+ Nd6 Ne8 Rg1 Ba5 Rb7 Rb2 Rb3 Bd2 Rd3 Bcb4 Qc1 Ba7 Rc7 Bac5 Bd7 Bbc3 Ba4 B3b4 Bc2 Bbc3 Kd7 B3b4 Nb5 d6 Rh1 d5 Bb1+ Ka1 a2 Ba3 Qc4 Bg2 Qf4 Be4 Kc8 d7+ Kb7 d8B Rg1 Bd6 Kb6 Bf6 Bc2 B6b4 Nd6 Bg7 Kb5 f6 Kc4 Bc5 Rh1 Rb7 Rf1 Kb2 a1N Ka2 Rh1 Rb1 Nb3 Rb2 Ndf5 d6 Na5 d7 Nd6 d8B Rg1 Qg4 Rf1 Nf3 Rc1 Ne1 Bd1 Qg6 Bh5 Qf7 Bg6 Qd7 Bf5 Be7 Bh7 Qd8 Nc2 Bde3 Kc3 Bf2 Kd2 Bg3 Kd1 Bab4 Ke2 Bd2 Ne3 Ba3 Ndf5 Beb4 Nd6 Bc5
2N3QB/1P1n2bR/4K1nn/NNb4n/1N3Rr1/4NqR1/1kqN1b2/1R1q3b b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Kf2 h5 Bg2 a5 Ke1 f4 Bh3 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 Kf2 Kf7 e4 Kf6 b4 Ke5 d4+ Kf6 h4 g5 b6 c5 b5 a4 d6 a3 h5 a2 e5+ Kf7 e6+ Kf6 e7 c4 e8N+ Kf7 f6 Ke6 f7 Kd5 b7 c3 b6 Kc4 h6 c2 d5 Kb3 h7 Bf5 d7 Be6 d6 Ne7 Na3 Ng8 Nc7 Bd5 Ncb5 Nh6 Bb2 Rg8 Rb1 a1B h8R Be4 Qf1 c1Q Rh7 Qc2+ Qe2 Ka2 Bh8 Bag7 Nc4 Bc6 Rh3 g3+ Ke1 g4 Qe6 g2 Ne3+ Bd5 Rg3 Qf6 d8N Nd7 b8N Qff5 Rd1 Kb2 b7 Be7 f8R Bc6 Rh3 g3 Nf7 Qh5 Na6 Be4 Ne2 g1B Nc1 g2 Nb3 Qf5 Nd2 f2+ Ke2 f1N Qg6 Bf2 Nb4 g1Q Re1 Nh2 Rg3 Bh1 Rd1 Nf3 Qe6 Nb6 d7 Ne5 d8N Bc5 Ndc6 Ng6 Na5 Nd7 Nfd6 Qd5 Nc8 Qgg2 Re1 Qgf3+ Kf1 Qfd1 Rf5 f3 Rf4 Re8 Qg8 Re4 Rf8 Rg4 Rf4 Bg1 Ne4 f2 Nd2 Qdc1 Ke2 f1N Rd1 Bf2 Re1 Qdf5 Rd1 Qf8 Re1 Q2d1+ Kd3 Qb1+ Kc4 Qf6 Ng2 Qbc2+ Kd5 Qfc3 Ke6 Qcf3 Rh3 Ng3 Ne3 Nh5 Rg3 Qde2 Ra1 Qed1 Rb1+
Qq6/B2Nn1bB/p2b3R/3Pn3/2k4R/3R1rbr/4KbqB/n3BBBR b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 f3 Nc3 f4 Ne4 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 e4 Ke7 b4 Kd6 d4 g5 h4 c5 b6 c4 h5 c3 e5+ Ke7 h6 g3 f6+ Kd7 b7 a6 f7 g2 e6+ Kd6 e7 g4 e8B g3 h7 f2+ Ke2 c2 b5 Nc6 b6 Ne5 Be3 c1B Ra4 Qb8 Nf3 Bg7 f8B+ Ne7 Bg6 g1B Qc2 g2 Qc8 Ba3 Bd3 Rg8 h8R Bh2 Bh7 g1B Bd2 Bg3 Be1 Ng6 Ne5 f3+ Kd1 Ra7 Nd7 Ne5 Rb4 Qc7 Qa8 Qb8 Bfd3 f1Q Ra4 Qf2 Bf1 Qh2 Rb4 f2 Ke2 Qg2 Ra4 Qc8 b8B+ Rc7 Ba7 Rc3 b7 Rf3 b8B+ Qc7 Be4 Bb4 R8h4 Rh8 Ra3 Rh5 Bh7 Bc5 Rd3 Bb4 Re4 Rh3 Rh4 Bc5 Bb6 Bb4 B8a7 Qb8 Rh6+ Bf6 Rh4 Ba3 Bh6 Bg7 Bf4 Qg8 Nf8 B3h2 Rh6+ Qg6 Bg2 f1N Rh4 Nd2 Bf1 Nb3 Rh6 Nc6 Bfg3 Ke7 d6+ Kf7 d7 Na1 d8R Ne7 Rb8 Bd6 Nd7 Ke6 Rb7 Kd5 Bf4 Qb8 Bfg3 Bc5 Rh4 Kc4 d5+ Qg4 Bf4 Ba3 Bbf2 Qg2 Rb6 Bc5 Rf6 Bd6 Rfh6 Bg3 R4h5 Bh4 Bh2 Bg3 Kd1 Qb4 Bfd4 Be3 Rh4 Qb8 Bdb6+ Bef4 Bbg1 Bf2 R4h5 B4g3 Ke2 Rf6 Rh4+ Rf4 R4h5 Rf3 Rh4+
2NK4/2n3R1/3bk1BN/4R1rP/R1nB2r1/n3B1b1/n1qp2N1/N2RbN1b b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Bg7 fxg5 Nh6 g6 Bf8 g5 Ng8 Qg4 hxg4 Ke2 d5 Kd3 Kd7 h4 a5 c4 e5 b4 a4 g7 a3 c5 g3 f6 g2 h5 a2 b6 Bd6 b5 Qe7 f7 Ba6 f8R Ra7 g6 Qe6 c6+ Ke7 c7 Kd7 c8N Bb7 Rf5 Nc6 Nd2 Nge7 g8N Ra5 g7 Qg6 Nh6 Rg8 Ngf3 g1B Ne1 Bh2 Ng2 Bg3 Rg1 Ba8 b7 Ke6 b8B Ra4 b6 Na5 b7 Nc4 Ba7 e4+ Ke2 e3 Kd3 e2 b8N e1B Nc6 Bb7 Nb4 Qh7 Bb2 Ba8 Rd1 a1N Nc2 Ra5 Rh1 Rc5 Rh4 Rb5 Nce3 Nc2 Nb3 N2a3 Na1 Bc6 Be2 Qg6 Bg4 Rb4 Nf1 Bb7 Ke2 d3+ Kf3 d2 Be3 Bc6 Bh3 d4+ Rd5+ Qf5+ Rf4 d3 Bbd4 Bd7 Rb5 Nd5 Bg4 Nc7 Bh3 Rf8 g8R Bc6+ Rd5 Rf6 Rg7 Rg6 Bg4 Rg5 Bh3 Qg4+ Ke4 Bb7 Bb2 Qf5+ Kd4 Be5+ Kc5 Bc6 Bbd4 Ra4 Rc1 d1N Rb1 Nc3 Rd1 d2 Re4 Nd6 Kb6 Na2 Rg4 Qc2 Rh4+ Kf6 Bf5 Bb7 Bg6 Ke6 Rc5 Bf3 Rd5 Ndc4+ Kb7 Bef4 Kb8 Bd6 Re5+ Kf6 Nf4 Bh1 Ng2 Na8+ Kb7 Nc7 Kc6 Rb4 Kd7 Ra4 Kd8 Rb4 Ra5+ Ke6 Rf4 Rbb5 Ra4 Rg4 Rf8 Rbg5 Rf5 Bb4 Rfa5 Bbd6 Re5+
1K1n3k/1n1P4/1R1RB1N1/2R1B3/N1N1prbr/qn2Rn1B/1R3nn1/5qN1 b - - 0 1 illegal: No possible last move
BR2nB2/Kp2n1b1/1pPkr1NN/2n3qB/1N4nN/1r6/n1R5/R3NB1b b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 Nc6 e4 Nb8 b5 Qc7 b6 axb6 Qd3 Qd8 Qd4 Ra5 Qd1 Ra8 exf5 h5 g4 g5 f4 Nc6 fxg5 Nb8 g6 Qc7 g5 Qd8 Qg4 hxg4 Kf2 d5 Ke3 Kd7 Kd4 e6 h4 g3 c4 g2 a4 Rh5 g7 Ra5 g6 Nh6 g8R Ng4 f6 Nf2 c6+ Kd6 g7 Kc7 c5 Nd7 f7 Nh3 Na3 Rh8 h5 Nf2 h6 Qg5 h7 Ng4 Nf3 g1N Ne1 Rb5 a5 Rb3 a6 Nh3 a7 Ndf6 a8B Ne8 Nac2 Bd7 Nb4 Nf4 Rh2 Ng6 Ba3 Ne7 Rd2 Rb1 Rc2 e5+ Kd3 d4 Kc4 Ng6 Kd5 d3 Be2 d2 Bf1 Be7 Rf8 d1N g8N Bf6 Nh6 Bg7 Rg8 Bf5 f8N Be4+ Ke6 Ne7 Ng6 Bf3 Nh4 e4 Rf8 Rg8 h8N e3 N8g6 Rh8 Rg8 e2 Rf8 Rb3 Rg8 Kb8 Kd7 Bh1 Rf8 Nc3 c7+ Ka7 c8B Kb8 c6 Na2 Kd8 Rh7 Be6 Rh8 Bf7 Rh7 Nef3 e1N Rg8 Nd3 Ne1 Nc5 Rh8 Nd6 Rg8 Ka7 Kc7 Rh8 Rc8 Re8 Nbd3 Ka6 Kb8 Kb5 Rd8 Rf8 Rc8 Ne8 Ka7 Rh8 Rb8 Rf8 Bg8 Rf6 Bf7 Re6 Nb4+ Nd3 Rd2 Kc5 Rc2+ Kd6 Nf4 Qc5 Bh5 Qg5 Nfg6 Nc5 Bc1 Bf6 Be3 Bc3 Bd4 Bb2 Bg7 Bc3 Bf8 Be5 Ba6 Bg7 Bf1
nk3Rr1/1BNK2Q1/Pr2Nq1q/4R1RR/p3r3/q3R1rN/1bp4R/3b3N b - - 0 1 illegal: No proof kernel
bN1r2BN/2p2nrN/3pB2P/1N2b2K/N1qB3B/N4p2/1r3n2/QR2q1k1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 g5 g4 Bh6 gxh5 Bf8 b4 Kd7 d4 Rh6 f4 gxf4 d6 Nf6 d5 Rh8 Ra6 Ng8 Rc6 Bh6 Ra6 Ke8 d7+ Kf8 d6 Kg7 Ba3 Kf6 Bc1 Bf8 Rb6 Qe8 d8B Ke6 d7+ Ke5 Rd6 exd6 Be3 Qe7 Bc1 Ke6 Kf2 Kf5 Kf3 a5 e4+ Kg5 h4+ Kh6 Kg4 f6 b6 a4 e5 a3 b7 a2 e6 a1Q b5 Ra4 b6 Ra2 Bc4 Rc2 Bb2 f3 Ne2 f2 Bd4 f1R Nec3 Qf7 e7 Nc6 b8N Rcf2 e8B Nb4 b7 Bg7 Nc6 Rb2 b8N Nd3 Na4 Bb7 Na3 Ba8 Na7 Qc1 Ba2 Qfc4 N7b5 Q1c3 Qa1 Qe1 Bf7 f5+ Kh3 f4 Kg4 f3 Be6 Rff2 Be7 Be5 d8N Rh2 Rf1 Rh7 Bb3 Rg7+ Bg5+ Kh7 h6 Kg6 h7 Rhe2 Nf7 Nh6+ Kh3 Kh5 h8N Re4 Bf6 Reg4 Ng5 Nf7 Nh7 Rg8 Rg1 R4g7 Bg5 Rd8 Rf1 Qeb4 Rb1 Qe1 Bf6 Kh6 h5 Nf2+ Kh4 Qcc3 Nc6 Ng5 Ba2 Nfe4+ Kg4 Qcc1 Bad5 Qc4 Bg8 Nf7+ Kh3 Re8 Be7 Rd8 Nf6 Kg5 h6 Kf4 Nb8 Qcb4 Nh7 Qc4 Bc3 Ke3 Be6 Kf2 Kh4 Kf1+ Kh5 Kg1 Bh4 Nf2 Bd4
3NR3/1R1Rb2k/2n1Rnq1/n5rN/NqPBB1BK/1p1qB3/r1p3Rp/8 b - - 0 1 legal: proof: b4 b5 e4 c5 c4 f5 exf5 g5 h4 gxh4 Qa4 d5 Qa5 d4 bxc5 Bd7 Qc3 b4 a4 Bb5 axb5 dxc3 d4 Kf7 g4 Kg7 f4 e5 Kf2 h5 f6+ Kh7 f5 a5 b6 b3 c6 a4 b7 c2 c7 a3 c8B h3 Kg3 e4 d5 e3 d6 e2 f7 e1N f6 h2 g5 a2 d7 Qe7 d8N Qe6 Kh4 Nc6 b8R Nge7 Be3 Ra5 Bg2 Qe5 Rb7 Qd4+ Bg4 Rg8 Nh3 Qd3 Nc3 Nd5 Nf4 Be7 Rd1 a1Q f8R Qa3 f7 Nf6 Re8 Qb4 f8B Ra2 Na4 Na5 Be4+ Rg6 Bg7 Nf3+ Kg3 Nd4 Kh4 Ndc6 Rhe1 Bc5 Re6 Be7 Re2 h1Q+ Rh2 Ne8 Bgd4 Qg1 Rg2 Nf6 Rdd2 Kh8 Rd1 Rg8 g6 Rg7 Kg5 h4 Nh5 h3 Kh4 h2 Rdd2 Qgf1 Rd1 Qf5 Rdd2 Rg8 g7+ Kh7 Rd1 Qg6 Rdd2 Rf8 g8R Rf7 Re8 Rg7 Bd5 Qgf5 Rd1 Rg5 Be4 Qg6 Bb2 Qdc3 Rdd7 Qd3 Bbd4
N2R1r1r/3B3R/p2BK3/P1pBn3/2N3pb/5rqr/p1kN1n1N/2BR2B1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 hxg4 a4 Kd7 b4 Ke8 a5 Na6 Qa4 bxa4 b5 Bd7 b6 Bb5 Be2 Bc4 Bf1 Be2 b7 c6 d6 Rb8 Bh3 Bc4 Bg2 Be6 Bf1 Bc8 bxc8B Rb2 Bb7 Rc2 Ba8 Rc5 Ke2 Kd7 Ke3 g5 Ke4 e5 d4 a3 f4 g3 h4 g4 f6 Ke6 d5+ Kd7 Kf5 a2 h5 e4 f7 e3 h6 g2 h7 e2 Ba3 e1R Nf3 g1R Nbd2 Rd1 Bb5 Be7 f8N+ Kc8 d7+ Kc7 Ne6+ Kd6 Nc7 Qb8 d8N Nb4 Nf7+ Kd7 Nd6 Rc3 N6c4 a6 d6 Rdf1 Rd1 Rg3 Bc1 Nd3 Bb7 Ra3 Na8 Nf6 Rh6 Rb3 Nh2 Ne4 Rh4 Rh3 Rh5 Re8 h8B Bh4 Bd4 Rh8 Bg1 Rff3 Rh6 Nef2 Rh5 Kd8 d7 Ke7 Ba4 c5 Bd5 Qc7 Bac6 Rbb8 Bb5 Rbg8 d8R Qd6 Bd7 Qc7 Ne5 Kd6 Rh7 Re8 Kg6 Qb8 f5 Qc7 f6 Qb8 f7 Ref8 Bb7 Qc7 Nc6 Kd5 Ne5+ Kd4 Nec4 Kc3 Bd5 Kc2 Kg7 Re8 f8B Qg3 Bd6 Ref8 Kg6 Ne5+ Kg7 Nf7 Kg6 Re3 Kf5 Ne5+ Ke6 Rc3 Nb2 Rcf3 Nbc4
2B2RRR/N1b1Bqp1/2k4B/1b2r2r/r3Rq1R/4nRQ1/2b3P1/1bnnB2K b - - 0 1 illegal: No possible last move
2B1BnRN/1Kp1B1R1/3B2br/b5R1/8/BNPNqnr1/2Rrrb2/1q2k1b1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Qd4 g3 Qg4 fxg4 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 a5 h4 g5 b4 d6 e4+ Kg6 f4 Kh5 e6 a4 b6 g2 b7 g3 b5 Kg4 e7 a3 e8R a2 b6 Qe7 e5 Rh7 h5 Ra7 e6 Rh6 c3 Nc6 b8R Ne5 b7 Nf3 Kc6 d5 f5 d4 f6 d3 f7 d2 Ba3 d1R Ba6 Nf6 Nh3 g1B Nf4 g2 Rh2 Kg3 Nd2 Kf2 Nb3 g4 Nd3+ Kf1 Rd8 g3 Rd5 Nh7 Rg5 Bf2 Rc1 g1Q Rc2 a1R Rg2 Rd2 Ra8 Re1 b8B Ree2 Bb7 Ra5 Ba7 Rae5 B7c5 R5e3 Bd6 Qh1 Ba6 Bd7+ Kb7 Be8 Rg7 Qg5 e7 Qc5 Rh2 g2 Rd8 g1B Rhg2 Qd4 R2g5 Qc5 Ndc1 Ke1 Rc8 Bb5 e8B Bd3 Rb8 Be7 f8B Bg6 Ra8 Red3 Rd8 Qe3 Rc8 Bf6 Bfe7 Nf8 Ra8 Bd4 Rc8 Rh7 h6 Bb6 Rb8 Rh8 h7 Ba5 Rd8 Rg8 h8N Rd4 Bc4 Rh4 Be6 Rh6 Rb8 Qh3 Bc8 Qf5 Rb2 Qb1 Rc2 Kd1 Ra8 Ke1 Nd3+ Kd1 Rg3 Be1 Ba4 Bh5 Be6 Nd7 R7g4 Bef2 Bc6 Rgg6 Rg8 Nf8 Be8 Rg7 Bc8 Bf7 Rf4 Rg4 Rf6 Bg6 Rf7 Rg5 Rfg7 Rg4 Rh3 Rg5 Rh5 Rg3 Nb4 Ke1 Re5 Nh7 Rg5 Nf8 Nd3+
6kr/p3K2R/q1NR4/P1rB2p1/RB1q1Nn1/BN1bB3/1NB2nn1/3bn1b1 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Qd3 h4 Qg3 hxg3 Kd2 Kf7 Kc3 b5 Kb4 g5 h4 d5 a4 d4 e4 d3 f4 d2 c4 d1B a5 g2 h5 g3 f5 Qe7 e6+ Kg7 f6+ Kh7 e5 Ba4 f7 Bd7 h6 Qf6 e7 Bc6 e8B Qd8 e6 Bd7 e7 Nf6 c6 Ne4 c5 Nc3 c7 Bh3 c8N Nd1 c6 Bc2 Kc5 b4 c7 b3 Ba4 b2 Be3 Be6 Nh3 g1Q Bg2 Bef5 Nd6 Bfd3 e8R Qf6 c8N Nc6 Bd5 g2 Ne7 Ne5 Nd2 b1N Nb3 Nd2 Nc6 Ndc4 Rd8 Ng4 Nf4 Ndf2 Rh2 Bg7 f8B Bd1 Ra3 Rc8 Ra2 Na3 Nc4 Nc2 Rd6 Ne1 Nb2 Qf1 Be7 g1N Ra1 Ngf3 Rh1 Rhd8 Bf8 Kh8 h7 Nh4 Be7 Bf8 Rh3 Kg7 h8B+ Kh7 Bg7 Qe2 Bh6 Nhg2 Ra3 Qd2 Bg7+ Qh6 Bc3 Bg7 Ra2 Rh8 Bb4 Bc3 Rh5 Kg7 Ba3 Qe6 Rh7+ Kg8 Nc1 Rc7 Bc2 Bg7 Nb3 Be5 Nh3 Bh2 Nf4 Bg1 Bb4 Rc8 Ra4 Rc7 Bf3 Qf6 Kd5 Qd4+ Ke6 Q2c3 Bd5 Qcc4 Bd8 Rc8 Bb6 Rc7 B6c5 Qa6 Ba3 Rc8 Bcb4 Rc7 Ne5 Rc4 Nc6 Rc5 Ke7+
qRN3K1/3p2bB/3r2p1/Nnr1BQP1/p2n2n1/b1kqN2N/N3B3/1b2N2B b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 d4 cxd4 g4 h5 f4 Rh6 fxe5 Ba6 g5 Bc8 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 e4+ d3 h4 a5 h5 g3 h6 f6 Kg6 a4 Kf7 f5 b6 f4 b5 f3 h7 g2 e6 f2 b7 Bb4 e7 Qa5 e8B Qa6 e5 Qa5 b6 Ne7 e6 Qb5 Na3+ Kc3 Nc4 d2 Be2 f1N Ne3 Na6 b8N Qa5 b7 Nd5 e7 Bd6 Bb2+ Kb4 c4 Nf4 c5 Ng6 c6 Ra7 c7 Bc5 Nh3 g1B Qb1 d1Q Qf5 Ra8 Be5 Nf4 Nc6+ Kb3 b8N g6 Nb4 Qd3 N8c6 Ne6 Na2 Bb7 c8N Nd4 Rh2 Rg8 h8N Nc7 Rg2 Qa7 Na5+ Kb2 Rf2 Nh2 Rf1 Ng4 Rb1+ Ka3 Rb6 Be4 Rb8 Rf8+ Kg7 Rf6 Bf7 Rd6 e8B Ncb5 Bd5 Kb2 Kg8 Ba3 Bef7 Bf2 Bc6 Be1 Be6 Bc3 Nf7 Qa6 Bb3 Ra7 Ba8 Rc7 Bb7 Qa8 B7d5 Qd1 Bb7 Bc2 Bh1 Rc5 Bh2 Bb1 Kh8 Rc4 Ne5 Qd3 Nf3 Rc5 Bg8 Nb3+ Kh7 Be5 Ne1 Bg7 Bg3 N3d4 Be5 Bh6 Kh8 Bf8 Bh7 Bh6 Kg8 Bg7 Nc1 Kc3 Na2+
3N2kr/2K1RN1r/1R1RN1q1/NQR1p1N1/p3nn2/P1n1Nb2/5b1p/2r2nB1 b - - 0 1 legal: proof: d4 e5 dxe5 g5 b4 c5 h4 gxh4 e6 Ke7 bxc5 Kf6 e7 Ke6 Bd2 Kd5 Bc1+ Kc6 e8N d6 e4 Ne7 e5 Ng8 e6 Bg7 e7 Bh6 Bc4 Bf8 Be6 fxe6 Kd2 Kd5 Kd3 a5 g4 b5 c4+ Ke5 g5 h5 f4+ Kf5 Kd4 Kg6 c6 Kh7 c7 b4 g6+ Kh6 a3 d5 Kc5 e5 Kb6 h3 g7 Kh7 c5 h2 c6 h4 f5 h3 f6 a4 f7 d4 Nd2 b3 Nd6 d3 e8R b2 Nb7 b1R+ Qb3 Bd6 f8N+ Kh6 Ne6 Kh7 Ngf3 Qf6 Re7 Ra7 Na5 Na6 Ndc4 d2 Ne3 d1N Qb5 Nc3 Rd1 Bb7 c8R h1N c7 h2 Rd2 Bb4 Rd6 Nc5 Bb2 Rf1 Rb1 Ng3 Bc1 Qg6 Nfg5+ Kh6 Bb2 Rc1 Ba1 Nf6 g8N+ Kh5 Rb2 Bf3 Nh6 Nd3 Nhf7 Nf4 Nfd8 Kh6 Rb1 Nf1 Bb2 Nd1 Bd4 Be1 Ng2 Be4 Bg1 Nb2 Rd1 Nd2 Qc6 Re8 Ne3 Nf1 Red7 Bf3 Qc5 Ne4 Kc6 Nbd3 Rb6 Ndf2 R1d5 Nc3 Qb5 Nfe4 Rc5 Re7 Ra8 Rb7 c8N Bf2 Ra7 Re8 Rd4 Rh8 Nd6 Rf7 Re7 Rfh7 Kc7 Nfd2 Nf8 Nf1 N6f7+ Kg7 Rdd6 Kg8 Nfe6
2r2q1k/1Q5n/2R3p1/R3NRn1/rrpprBPR/1NN5/1RR1b2K/3qb1N1 b - - 0 1 illegal: No proof kernel
5B2/1qR1nNK1/p3BNb1/n1B2qPr/R4R1k/1r1rRq2/R4n2/1R2Bq2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 exf3 Qa4 Bc5 Qf4 gxf4 g5 Be7 g6 Bg5 hxg5 Ke8 Kf2 Ke7 e4 c5 b4 h5 d4 f5 d6+ Ke6 d7 c4 e5 h4 d5+ Ke7 e6 a6 g7 h3 b6 c3 b7 h2 b5 c2 b6 Rh6 Nd2 Rh3 Nc4 Qf8 d8B+ Ke8 e7 Kf7 e8R Kg6 d6 Kh5 d7 Kh4 Ra2 Qe7 Nd6 Qe4 Bd2 c1Q Nf7 Qa4 Be7 Nc6 d8B Qb5 b8R Qcc4 b7 Bd7 Bf8 Qc2 Bc4 Na5 Re3 Ne7 g8R Be8 Rc8 Rb8 Bb6 Qd1 Be1 Qc6 Ne5 Bg6 Rc7 Rd8 b8R Rd3 Bc5 Qb7 Nf7 Qdb3 Kf1+ f2 Ke2 Rg3 Rd8 f1R Nh3 Rf3 Nf2 Rh3 Rg1 h1N Ng4+ Nf2 Be6 Rfg3 Rd4 f3+ Kf1 f4 Rda4 Q3d5 Rg7 Qf5 Rg8 Bh7 Rg6 Rb3 Rf6 Bg6 Rh1 Nd3 Rg1 f2 Ke2 f1Q+ Kd2 f3 Rh1 Rb1 Kc3 f2 Kd4 Rb3 Rg1 Qff3 Rf4 Rh2 Rh1 Qh3 Rg1 f1Q Rh1 Nf2 Ke5 Rd3 Kf6 Rb3 Kg7 Rd3 Rfc4 Qf5 Rf4 Rb3 Re5 Rgd3 Re3 Qhf3 Beb4 Q1g2 Rb1 Qf1 Bc3 Kg3 Bd2 Rh5 Be1 Kh4 Nf6+
KR1B2N1/3R2bn/1B1p4/B1R2R1n/2q1P1pN/n1q5/1p1n2r1/kR1BRb2 b - - 0 1 illegal: No possible last move, all moves rejected
Rq3r1N/k2bb1Bp/rr2n3/2n4P/5N1N/2NB1N2/2rnNK2/1b1q1NRN b - - 0 1 illegal: No possible last move, all moves rejected
1b1KB1Bb/N5nN/1R5b/P2kq1p1/R1b1Nn2/1B2rR2/p1B5/2r1bNR1 b - - 0 1 illegal: No proof kernel
K2bknBN/B1bN1N2/pN1P3p/2Br3R/5bnR/R5b1/R1r1B3/2bb4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 d4 g5 a4 f5 e4 fxe4 h4 Qd6 hxg5 Kf7 Qb3 Qe6 d6 Ke8 Qc4 bxc4 d5 Qf5 Nd2 Qd7 Nb1 Qb5 axb5 Bb7 Ra2 Ba6 Ra1 Bc8 Kd2 c5 Ke3 e5 f4 h6 b4 a6 g4 c3 f5 c4 b6 c2 g6 c3 d7+ Kd8 g5 Ke7 d8N Kd7 f6 Be7 b5 Ra7 d6 Bb7 g7 Bf8 f7 Bc6 g6 Ba8 b7 Nf6 g8B Be7 f8N+ Ke8 b6 Rh7 g7 Rh8 Na3 Nc6 b8B Nd4 b7 Ne6 Nf7 Bd8 Ng6 Nf8 Rh5 Bc7 Bd2 c1B Nc4 c2 Nb6 Bd8 Ra2 Ng4+ Ke2 e3 Kd3 e4+ Kd4 e2 Kc5 e1B Kc6 e3 Bb4 e2 Bc5 Bg3 Nf3 e1B Be2 Ba5 N3e5 Bcf4 Ned7 Rh7 Ngh8 c1B Bc7 Bf6 Bd8 Bfh4 Kc7 Be7 Kb8 Beg5 Bf6 B5h4 Bfd4 Bd8 Kc8 Bc7 b8R Bf3 Rb7 Bd8 Rc7 Rb7 Bf2 Ra7 Kb8 Rb7+ Ka8 Bh2 Bce3 Bhg3 Rc3 Bc7 Rca3 Bd8 Nd5 Rb5 Ba7 Bac7 Bfc5 Ra5 Bf1 Be2 N5b6 Bd1 Be2 Rb5 Bb4 Re5 Bc5 Rd5 Nb8 Rg5 Bb4 Rc5 Ng5 Nf6 Bb3 Ra5 g8R Re5 Rh4 Ng4 Rg6 Rhe7 Bg8 Rd5 Ngf7 Re3 Rg5 Re4 N8d7 Rc4 Bc5 Rc2 Rgh5
5n2/1qRbkNp1/1b1RB1r1/3n2rN/3R3q/1P1KR1p1/Nr5p/1B2BN1B b - - 0 1 illegal: No proof kernel
2r1B3/1NBr2B1/Rn2k2N/P3r2p/2p1nRbp/B1n1b1R1/4N1K1/2RN1n2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 g5 b4 Kd7 g4 Bh6 h4 Na6 h5 Bg7 h6 Nb8 Qf3 Qe8 Qf4 f5 exf5 Qd8 Qh2 Bf8 Qh4 gxh4 g5 axb4 g6 Ke8 Bc4 Qd6 Bd3 Qf6 Bf1 Qg7 hxg7 Ra7 Ba3 Ra5 Bc1 Ra8 a4 Kd7 d4 e5 f4 b5 Kf2 c5 d6 h5 d5 e4 f6 e3+ Kg2 e2 f5 e1R f7 b3 f6 b2 Nc3 b1N Ba3 b4 Nge2 b3 Nd1 Ne7 g8R b2 g7 Kd8 d7 Nc3 Ra2 Kc7 d8B+ Kd7 d6 b1N Bc7 Ke6 d7 Ned5 Rg1 Bd6 f8R Na6 f7 Nd2 Ra1 Rh7 d8N+ Kd7 a5 Nb6 Rc1 Bf4 Nb7 Be3 Rh8 Ke6 g8N Bd7 Nh6 Re8 Rhg8 Rc8 Rg4 Rg7 Rd8 Rh7 f8B c4 Rf4 Nc5 Bg7 N5e4 Rdf8 Kd5 R8f6 Bg4 Rg6 Nba4 Ra6 Nb6 Kh2 Ke6 Bh3 Nf1+ Kh1 Rhh8 Rg3 Rhd8 Bg2 Rd7 Bf3 Nc5 Bc6 N5e4 Kg2 Rd5 Ba4 Re5 Nb2 Rd1 Be8 Rd7 Nd1
NBbrBq2/bn2n3/3N1RR1/2B3N1/nkp2bn1/3q1R1K/2P1nN2/Br4R1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Qd4 g3 Qg4 fxg4 f4 Ke7 b4 a5 e4 d5 h4 c5 h5 g5 e6 Kd6 b6 a4 b5 g2 Kf2 a3 Kg3 d4 f5 a2 h6 d3 b7 d2 b6 d1Q h7 Qd5 e7 Nc6 b8R Qd1 f6 Nh6 f7 Qd3+ Nf3 g1N b7 Ne2+ Kh2 Ra6 Rg1 Nc3 Nbd2 Na4 Ba3 Rb6 e5+ Kd5 e8N g3+ Kg2 g4 e6 Ne7 Nd6 Rb1 N2e4 c4 Nfg5 Bg7 f8R Be5 Bc5 Bf4 Rf6 Qf8 Nf2 Rg8 h8B Kc6 Ne8 Kb5 Nc7+ Ka5 Na8 Kb5 Bd4 Kb4 Bg7 Rh8 Be2 Rg8 Bf3 Rh8 Bc6 Rg8 Rf1 Rh8 Kg1 g2 Be8 Rg8 Nd1 Rh8 Rf3 Rg8 Kf2 g1N Kg2 g3 Nf2 Ne2 Kh3 g2 Rg6 g1B Bc5+ Ka5 Be5 Ng4 Rf6 Rb2 Rb1 a1N Bed4 Rb6 Rg6 Nb3 Ba1 Nd2 Re1 Ne4 Rf1 Nd6 Rd1 Bgh2 Rg1 Rb1 Rf6 Be3 Rg6 Bhf4 Rf6 Bd7 Rd8 Bc8 b8B Nb7 Rd6 Nd5 e7 Bd4 Ba3 Ba7 Bc5 Rh8+ Bh5 Rg8 e8N Ne7 Bf7 Kb5 Rg6 Ka5 Rdf6 Kb5 Nd6+ Ka5 Bb6+ Kb4 Be8 Qf7 Bd7 Rd8 Be8 Qf8 Bc5+
n2B1R2/1BN3BN/p1p2Nb1/R3n3/2Nn1R1r/B1PR3r/pb4Kp/1qkq4 b - - 0 1 legal: proof: e4 b5 d4 e5 h4 g5 hxg5 f5 a4 bxa4 Qf3 Ne7 dxe5 Bh6 e6 Bf8 e5 Ng8 Qe4 fxe4 g4 Ke7 b4 d5 f4 h5 Kf2 a3 f5 d4 b5 h4 b6 h3 g6 d3 b7 c6 g5 d2 c3 d1Q g7 h2 g6 e3+ Kg2 e2 f6+ Ke8 e7 Kd7 e8R Qd6 f7 Nf6 g8N Na6 b8B Qd3 g7 Nc7 e6+ Kd6 e7 Ke5 Nd2 Kf4 Nh3+ Ke3 Ng5 Rh4 Nh7 Ng4 Ngf6 Bf5 g8R Ne5 Rg4 Bg6 Rf4 Qb1 Nc4+ Kd3 Rg1 Kc2 Bb2 Bh6 f8B Qdd1 Bg7 a2 Rf8 Rh3 e8N a6 Ba3 Bg5 Ba7 Rd8 Bb6 Na8 Nc7 Rdd3 Ba5 Rh4 Bb6 Rdh3 Ba5 Qb5 Rb1 Qb6 Rb5 Qb8 Rd5 Qbb1 Rd3 e1N+ Kh1 Re3 Bh3 N1f3 Kg2 Nd4 Bc8 Reh3 Bb7 Bh6 Rgf1 Bg5 Rf5 Bc1 R1f4 Bb2 Rg5 Kc1 Bb6 Nd7 Ra5 Ne5 Nb5 Ng4 Bd8 Ne5 Nc7
qk2N3/q2b4/b7/PBbR4/2b1p1n1/2K3RR/Q5QQ/RRRrrb1R b - - 0 1 legal: proof: c4 c5 e4 g5 b4 a5 bxa5 f5 exf5 d5 cxd5 Nd7 f6 Nb8 Ba3 Nd7 Bb4 cxb4 Bc4 Nb8 Ba6 Bf5 Bf1 Bc8 g4 Bf5 f4 Na6 h4 Qc8 h5 Qd8 Nc3 Nc5 Nce2 Bc8 f5 Nd7 Nf4 gxf4 g5 Ne5 Ne2 Bd7 Ng1 Ng6 hxg6 Bc8 d4 Kd7 Kd2 Kc7 a4 e5 a6 h5 f7 b5 g7 h4 a7 h3 g6 b3 a5 h2 f6 b4 d6+ Kb7 d7 b2 d5 b1Q d6 f3 Bb5 b3 Qe2 f2 Nh3 f1B Nf4 b2 Nd5 Be7 f8R Rh3 f7 Qf5 Nf6 b1B Ne8 Rh8 Kc3 Nf6 g8Q Rh5 g7 Qh7 Qh8 Ng4 g8R Rb8 Qa2 Bf5 a8R e4 Ra6 Ra8 Rc6 Bc4 Rhb1 h1B Rg6 Qc7 d8R Bg2 d7 Qg8 Rh6 Rh2 Rh3 Kb8 Qe5 Rh1 Qh2 Bc5 Rch6 Qg5 Rg8 Re1 f8Q Bgf1 Qg7 Bfe6 R6h5 Qd5 Qg5 Ra7 Qgd2 Qb7 Qdg2 Qa8 Rd5 Rb7 Rdd1 Rb6 Rdc1 Rd6 Rgh8 Rdd1 Rg3 Ka7 Rhh3 Ba6 Rc8 Qcb8 d8R Bd7 Rc6 Kb7 Rch6 Qba7 R6h4 Bf5 Rd5 Kb8 Rh5 Bd7 Rhf5 Bfe2 Rf1 Bed3 Rg1 Bf1 Rh1
1N2r2Q/Q5Nn/1q1rP1RQ/6b1/1N2pN2/1Bpn2NK/bNn2kNb/7q b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 Rh6 gxh5 Rh7 d6 Rh8 d4 f6 b4 Kd7 e4 Be7 d5 Ke8 Bb2 Bf8 Bd4 Bh3 Ra3 Bg4 Re3 exd4 e5 Bd7 e6 Bc8 Re5 fxe5 h4 c5 f4 a5 Kf2 g5 Kg3 e4 h6 c4 h7 c3 h5 d3 b6 a4 b5 g4 h6 d2 d7+ Ke7 d6+ Kf6 b7 Kf5 b6 a3 Qc1 d1Q Nd2 a2 Ne2 a1N Rg1 Qc7 d8N Nb3 d7 Ra3 Nc6 Qc2 d8N Ra7 Nf7 Nf6 Nc4 Bg7 Nfd6+ Kg6 f5+ Kh5 Nb2 Qb1 Nb4 Nc6 b8N Re8 h8N Ncd4 b7 Qb6 h7 Ra6 Ng6 Bh6 h8Q Nh7 f6 Nc5 f7 Nc2 f8N Nd3 Nf5 Bg5 Ngh4 Qa1 Kg2 g3 Nfg6 Kg4 Ngf4 Bd7 Ng7 Bb5 N8c6 Ba4 b8Q Bb3 Qa7 Ba2 Nb8 Qb1 Kh1 g2+ Kh2 Qa1 Ng3 Qb1 Nhf5 Kf3 Kh3 Kf2 Nh4 Qa1 Be2 Qb1 Bd1 Qa1 Re1 g1B Nhg2 Bh2 Rg1 Na3 Bb3 Nc2 Qd1 Qb1 Qh5 Qd1 Qh6 Qf3 Ne1 Qh1 Neg2 Ra5 Qf7 Rd5 Qa7 Rd6 N3f5 Ne3 Ne1 Be7 Rg6 Nc2 Neg2 Bg5 Ng3
1BB4R/nb2r2k/1pQ1r1br/1bbr1b1Q/4qQ2/1P3R2/1Q4QQ/R1K4Q b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 g5 exf5 a5 b3 a4 Nc3 a3 Na4 Ra6 Nb2 axb2 Ke2 Ra7 Ke1 Ra8 g4 Bh6 f4 Ra3 h4 Nd7 f6 Ra8 f5 Nb6 h5 Nd7 Nh3 Nf8 Nf4 gxf4 g5 Ng6 hxg6 Bf8 a4 b1B d4 e5 Kd2 c5 a5 h5 d6 f3 d5 f2 a6 b6 a7 h4 g7 Kf7 d7 e4 d6 c4 Bh3 Qc7 d8Q f1B d7 Qe5 Qc7 Bc5 d8Q+ Ne7 Qdd6 Kg8 f7+ Kh7 f8R Nc6 f6 Bf5 f7 Rd8 a8Q Na7 Qcc6 Rd7 Bb2 c3+ Kc1 c2 Ba3 Qe6 Qh2 e3 Qe8 e2 g6+ Kh6 g8Q e1R g7 Rd5 Bb2 Bb5 Be5 Bg6 Bb8 Qe4 Bc8 h3 Qee5 Rh7 Qb2 Re2 Qg2 h2 Qh8 Re1 Rf1 h1B g8Q Re3 Qhe5 Rh3 Rd8 Rg7 Qge8 Kh7 f8Q Rh6 Rf3 Re7 Qff4 Bf5 Qh5 Re6 Qd3 Re7 Kd2 c1R Qdd4 B1d3 Qdg1 Re1 Qhh2 Re2+ Kc1 Qa4 Qgh3 Bd7 Qhf1 Rd4 Qcd5 Bb1 Rh3 Bg6 Qh5 Bdf5 Qde4 Bg2 Qgh1 Rdd7 Qe6 Bb7 Rf3 Rd5 Qc6 R2e6 Qfg2 Qe4 Rh8#
1KR2N2/1NN2b2/1r2nNr1/2pn1kp1/Q6N/N2q1Pn1/2QbQn2/2n3RR b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 d5 c4 g4 cxd5 g3 f3 Ba6 Na3 Bb7 Nb1 Bc8 b3 Qd6 Bb2 Qc6 Bd4 Qb7 Ke2 Be6 Bf2 gxf2 g4 Kd8 g5 Nh6 g6 Ng8 g7 Bc8 Bh3 Ke8 Bg4 Qa6 Bh5+ Qg6 Kf1 Qf7 Bg6 hxg6 Ke2 Qe6+ Kd3 Qd6 Ke2 Qd8 Ke3 Kf7 Kd4 Kf6 Kc5 f1N d4 a5 h4 e5+ d6 c6 b6 g5 b7 a4 d5 e4 h5 e3 b4 e2 h6 e1N h7 a3 b5 a2 b6 Qe7 Qa4 Qf7 Nh3 Ra7 Na3 Nh6 g8N+ Ke5 f6 Be6 Nf4 Be7 Ng2 Qe8 f7 Qd7 f8N Bf7 Nf6 Rg8 h8Q Ra6 Qh7 Ng3 Qhc2 Bd8 Rg1 Qf5 d7 Qd3 d6 Kf5 Qe2 Bc7 d8N Ng4 d7 Nc2 Nde6 Rg6 d8N Bf4 Nc7 Nd4 Qac2 Be3 Kd6 Nd7 b8R c5 Rc8 Nf2 Nb7 Bd2 Rac1 a1N Rh1 Nb8 Rcg1 Nab3 Na5 Bc4 Nd5 Be1 Kc7 Nc1 b7 Nbc6 b8Q Bd2 Qa8 Rb6 Nb7 Nb4 Kb8 Ba2 Nc7 Bf7 Qa5 Nd5 Qaa4 Ne6 Nh4+
B1n1rq1b/1R1b1p2/1rkQ4/1bB4P/q6B/3B2Qp/1nRQ1B2/R2bB1K1 b - - 0 1 illegal: No proof kernel
B3qr2/4q1pQ/Q1B3Qp/B3B1b1/B1B1RR1b/7n/R6P/Knqkqb2 b - - 0 1 legal: proof: d4 e5 a4 f5 Nc3 b5 axb5 Qf6 Nd5 Qd8 Nf4 c6 Ne6 c5 dxc5 Nc6 Nd4 exd4 Ra6 Nb8 Ra2 Ke7 Ra1 Ke8 f4 a5 g4 Qc7 e4 Nh6 g5 Nf7 e5 Nh6 Nf3 Ra6 Nd2 Qd8 Ne4 fxe4 f5 Rf6 gxf6 Ng8 Kd2 Kf7 b4 d5 c4 h6 Kc2 a4 Kb1 e3 e6+ Ke8 b6 d3 f7+ Ke7 c6 Kf6 c5 Ke5 c7 Kf4 c6 a3 f6 d2 e7 e2 e8B Ke3 b7 e1Q b5 d4 b6 d3 Qc2 Qe2 Ra2 Be7 f8Q Bh3 c8B Nd7 b8Q Ne5 b7 Nc4 f7 Bh4 c7 Qe7 Bcd7 Nf6 c8B Nh5 Qa8 Nf4 b8B Rg8 Bb2 d1Q+ Bc1+ d2 Qa6 Kf2 Qcg6 Qde1 Ka1 d1Q Be5 Nd2 Bb7 Nb1 Bd2 Qc1 Bdc6 Qe3 Bfb5 Bf1 Ba8 Nh3 Bc4 Rh8 Bed7 Qe4 Qe8 Rf8 Qh7 Bg5 Ba5+ Q4e2 Rb2 a2 Rg1 Ke3 Rg4 Bh4 Rf4 Qh5 Rb4 Kd2 Rb2+ Kd1 Re4 Qa3 Qe6 Qe7 Qef5 Qg6 Rc2 Qge6 Qfg6 Qe8 Ba4 Q6e7 Bdc6 Qcd2 Kb2 a1B+ Ka2 Bd4 Rb2+ Qc2 Ka1 Be3 Ra2 Beg5 Bab7 Rg8 f8R Rh8 Rff4 Rf8 Bab5 Qcd2 Ba8 Qc1 Ba4+
b1bQ4/2k5/1q1P2Qn/1n1rn3/B1q3Bb/B3BR2/1KB1r1RR/3q1R1R b - - 0 1 illegal: No possible last move
2Q3n1/kr1n2n1/8/1p1QNPRb/1b1R3Q/R2n1Q1R/1b3q1q/2NKRr1Q b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 Kd7 exf5 Ke8 f6 Bg4 Qf3 Be6 Qd1 Bc8 g4 Bh6 f4 Bf8 Bh3 Nh6 Ba3 Ng8 f5 h6 Bd6 h5 Bf4 gxf4 g5 Bd7 Bg4 hxg4 Qc1 Be6 Qd1 Bc8 d4 Kd7 h4 c5 a4 Kc7 d6+ Kc6 a6 Kb6 g6 e5 g7 f3 d7 g3 d5 c4 a5+ Ka7 d6 b5 h5 e4 f7 c3 h6 e3 h7 c2 Ne2 c1B Qd5 g2 Kd1 g1N Ra3 f2 Nd2 f1N Nc4 Nh3 Ne5 Bb2 Nc1 Ng3 Re1 Qh4 d8R Bb7 d7 Bb4 f8Q Nh5 Qf6 Qf4 Qh4 Qh2 Qh1 N3f4 Qd5 Nh6 g8R Nd3 Rg5 Ng7 Qf3 Re8 h8R Re7 Rh7 Ng8 Rhh5 Qg1 Qhh1 Qh2 Rh3 Nc6 Qd5 Rc8 Qdf3 Nb8 Qd5 Rc4 Qdf3 Rf4 Qd5 Ka8 a7 Rf1 Qdf3 Bc6 Qd5 Kb7 a6+ Kb6 a8Q e2+ Kc2 Bb7 a7 Rf7 Qdf3 Be4 Qd5 Re7 Qg4 Bf3 Qh4 Bh5 a8Q Rf7 Rc8 Re7 Rc4 Rf7 d8Q+ Rc7 Qg4 Nd7 Qdc8 Rb7 Qgf3 Rb8 Rd4 Rb7 Rd1 e1Q+ Qf2 Be2 Qh4 Qef2 Re1 Bf3+ Ne2 Bg4 Kd1 Bh5 Qdf3 Rc7 Qad5 Rb7 Rc3 Ka6 Nc1 Ka7 Ra3+
5QB1/k1q1NR1p/4B2b/1r4r1/K1n1p3/Q2qB1P1/1r1b3B/Q2QQ1Q1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 Qd6 axb5 Qe6 e4 Qd7 d6 Qd8 d4 f5 e5 Nd7 d5 Nb8 e6 Bd7 exd7+ Kf7 g4 Na6 b4 Nc5 f4 Ne4 Nd2 Ng3 hxg3 g6 Ne4 fxe4 f5 g5 Ra2 Bg7 Rf2 Bf8 Rf4 gxf4 Qd4 a5 Kd1 e5 Kc2 c5 Kb3 e3 b6 e4 b7 f3 b8B f2 b5 e2 b6 e1R g5 Qc8 d8Q Bh6 b7 Ra6 d7 Rd6 f6 Re2 Bh3 f1Q Qb6 Rd2 d8Q Re6 d6 Qf5 d7 Qf1 Ne2 Qc7 Nf4 Ne7 Ng6 Nf5 Ba7 Re5 b8Q Ne3 Ne7 Rg8 Qa8 c4+ Ka3 Qf2 Rf1 a4 Qbb2 Rf5 g6+ Ke6 f7 c3 f8Q c2 g7 Nc4+ Kb4 Re2 Be3 c1B Qa2 Qf3 Bg1 a3 Bh2 Rb2+ Qb3 a2 Qg1 Kd6 Bg4 Rd5 Be6 Qe2 Rf7 a1Q Bf2 Qb1 Qa1 Qe3 Ka4 Kc5 Qba3+ Kb6 Qa8 Re5 d8Q Reb5 Qdd1 Qd3 Qa5+ Kb7 Q5c3 Ka7 Qce1 Bd2 Qc8 Rd8 g8B Rdd5 Qf8 Rg5 Bxe3+
1b2k2N/3r2n1/N7/1BQb1rB1/1Pq1B1Qr/n1B2Bq1/1QN1N3/rb3K2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 f5 b4 d5 e4 g5 exf5 d4 h4 a4 hxg5 d3 cxd3 a3 d4 Bg7 Rh6 Bxh6 Ra2 Bf8 Rc2 a2 d5 Ra5 Rc6 Ra3 Ra6 Ra4 Ra8 Rxa8 d4 a1Q f4 h5 d6 c5 f6 e5 g6 e4 f5 c4 g5 c3 f7+ Kd7 b6 h4 b7 h3 g7 c2 g6 e3 f6 h2 d5 h1B Bb2 c1R Bc3 e2 Na3 Rh6 Nc2 Be7 f8Q Rb1 f7 Nf6 g8B Rb2 g7 Nh5 Bh7 Ra7 g8B Na6 Qg7 Qa3 f8Q Qc7 Be4 Qc4 Qdd4 Rf6 Qg4+ Rf5 Bh7 Bg2 Bf3 Nc7 Qfg7 Ke8 b8N Ra2 Na6 Nb5 Qc5 Ra1+ Kf2 e1R Ne2 Be6 Qf6 Ng7 d7+ Kd8 Qe5 Bd6 Qh2 Ke7 d8B+ Ke8 Bg5 Bb8 d6 Rd7 Kg1 Bd5 Bg6+ Rff7 Bge4 Bh1 Qhf2 Rf5 Qfd4 Qab3 Qd2 Red1 Qc1 Na3 Qb2 Rdf7 Kf2 R7f6 Kg1 Rh6 Kf2 Rh4 d7+ Kf7 d8N+ Ke8 Nf7 Rd4 Bd3 Be4 Nh8 Rd7 Bcd2 Qbc3 Be1 Qe5 Bg2 Qg3+ Kf1 Qa2 Bb5 Qc4 Nd4 Bb1 Bc3 Rd5 Nc2 Re5 Bb7 Rd5 Be4 Re5 Bf5 Bd5 Be4 Rf5+ Bf3 Bg8 Be4 Be6 Qc7 Bd5 Qc5
3Q3r/k1KB2P1/2R1Q3/R2QBBBQ/3r3B/1q5n/4rrRb/b3qq1r b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 Qd6 axb5 Qe6 e4 Qd7 d6 Qd8 f4 Be6 e5 Bc8 d3 Kd7 d4 Ke6 d5+ Kf5 e6 Bd7 exd7 Kf6 g4 h5 Na3 e5 Nh3 g5 Nc4 e4 Ne3 Kg6 Kd2 Nc6 Ke1 Ne5 fxe5 Nh6 Nf4+ gxf4 g5 Ng8 Ng4 hxg4 Kd2 Kf5 Kc3 a5 Kd4 e3 Kc5 Ke4 Kc6 f5 b4 e2 h4 e1Q b6 g3 g6 g2 g7 g1R e6 a4 b5 f3 b7 f4 b8R f2 h5 a3 b6 a2 b7 f3 e7 Nf6 e8B Ra4 h6 Nh5 h7 Rd4 Bh3 f1R Bg5 f2 Rc8 Rg2 b8B Nf4 Qg4 Qe7 d8Q Qf7 d7 Bd6 Kb7 c5 Rg1 c4 Rc6 c3 Qe6+ Be5 d6 c2 Bg4 c1R Kc7 Nh3 Bh4 Rh2 Rg2 Rc2 Qg5 Rfh1 Qd8 f1Q Bf5+ Kf3 Qg5 Re2 Qd2 Qg8 d8Q Rf2 Qa5 Ke3 Bd7 Re2 Qad5 Qf7 Rac1 a1B R1c5 Qg8 Ra5 Qf7 Rg6 Rhf2 Rg2 Qg8 Qc4 Qf7 Qed5 Bh2 Qa6 Rf8 h8Q Rg8 Qh5 Rh8 Qa2 Qb3 Qc4 Qc2 Qcg8 Qb2 Qad5 Qb3 Qge6+ Kd2 Rca6 Kc3 Rc6+ Kb4 Ba7 Rd1 Bd4 Rd3 Bdf6 Rd4 Be5 Bg3 Qf8 Rff4 Bef6 Rf3 Bc8 Rff4 Qfg8 Bh2 d7 Rf3+ Be5 Rff2 d8B Red2 Bd7 Rde2 Rac5 Ka4 Bdg5 Kb4 Qd8 Ka4 Rd6+ Kb4 Bb5 Ka5 Bc6+ Ka6 Bd7+ Ka7 Rdc6 Qd3 Rb5 Qb3 Ra5+
2K1QR2/5RRb/3r1q2/3nPrN1/1bR3N1/1p1Q2Nn/1QqN1bk1/6Nn b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 c4 e4 cxd5 b4 a6 e3 a7 b3 a5 Qg5 a6 Qe5 fxe3 Qg5 e4 Qd8 Ba3 Bxa3 e5 Bf8 Bh3 Bb7 Bc8 Bxc8 Kf2 Ke7 Kg3 g5 e4 f5 h4 c5 d4 c4 h6 g4 Kf4 c3 h5 g3 e6 Kf6 h7 g2 e7 c2 e8N+ Kf7 Ke5 c1N h6 Kg6 d6 Kg5 d5 f4 d7 f3 Ke6 Kf4 d6 Kg3 Nf6 f2 Rh4 f1Q Nh5+ Kf2 Ng3 Ne7 Nd2 Rg8 h8R Nec6 h7 Rg4 Rg8 Qc7 h8Q Rg5 Qb2 Rf5 e5 Ne2 Rg7 Ne7 Rc4 Nd5 Raa4 Bb7 d8N Nd7 Nf7 N7b6 d7 Bb4 Ng5 Rd8 a8R Bc8 a7 Ba6 Rh4 Qc2 Rhh7 Bd3 Rf7 Be4 Rhg7 Bd3 Rc8 Be4 a8Q Bd3 Nh5 Ng3 Qb8 Nh1 Ng3 Be4 Ra8 Bd3 Rc4 Be4 Qd6 Bd3 Qh5 Nf4+ Ke7 Nh3 Qh8 Nf4 Qe8 Nh3 Ke6 Be4 Qd3 Nd5 Rac8 Rf3 Ra8 Bh7 Rb8 Rf5 Ra8 Rb8 d8N Rb6+ Kd7 Rg6 Kc8 Rd6 N1f3 g1B Rb8 Bh2 Ng1 Kg2 Qa4 N1f2 Nde6 Ba3 N5f3 Qfd1 Nh5+ Rg5 Kb7 Bg3 Rbf8 Qf1 Qe8 Nh1 Kc8 Bb4 Nh2 Qf6 Ng4 Bf2 Ng3 Rf5 Ng5
1q2r2R/Bq2q3/1QB1RQ2/p2K1nb1/p2B1R1Q/P3p1B1/R1q1kr2/5R2 b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 e4 b6 exf5 Bb7 b5 Ba6 bxa6 b5 Nc3 Qd6 Na4 bxa4 Qf3 Qd7 Qd1 Qd8 f4 h6 g4 Qc8 f6 Rh7 f7+ Kd7 f5 Qd8 Nh3 Rh8 Ng5 hxg5 f6 Nc6 Bc4 Nd4 Bf1 Nf5 gxf5 g4 Kf2 Kd6 Ke3 Kc5 Ke4 g5 h4 e5 d4+ Kb4 d6 Kc3 a7 c5 d7 c4 a3 g3 h5 g2 h6 g1Q h7 g4 d5 g3 d6 g2 Kd5 e4 Qg4 e3 Ra2 Qh2 Bb2+ Kd2 Qh4 g1Q Bg2 Qf2 Bd4+ Kd3 Rf1 Qb6 d8Q c3 d7 Rc8 a8R c2 Ra6 Bg7 f8R c1Q f7 Qcd2 f6 Qbb4 Qb6 Re8 d8B Qe7 Bc7 Qb2 Bg3 Nh6 Bh1 Rg8 h8R Qfc2 Qb3+ Kd2 Bf2 Qa7 Re6 Qg6 Kc4 Qhc7+ Bc6 Qgc2+ Kd5 Qab8 Ba7 Ke2 Be1 Qh7 Qb6 Qbc2 Bc3 Qcb7 Bd4 Rc8 Rd8 Rc7 f8B Rf7 Bd6 Rff8 f7 Bf6 Bg3 Bg5 Re4 Qg7 Rde8 Qf6 R8e6 Qfe7 Rd1 Rg6 Rg4 Rf6 Rf1 Rf2 Rf4 Re8 f8Q Nf5 Qf6
5qq1/1QR1B3/nrQ1r1rn/1n1K4/2RQQb2/1BB4Q/2r1bBP1/1R4bk b - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 g5 axb5 g4 d6 g3 hxg3 Bh6 g4 Bg7 g5 Bf8 e4 Nc6 d5 Nb8 Nf3 f6 Nd4 exd4 e5 f5 Nc3 Bd7 Ne4 fxe4 Qd3 Bf5 Qd1 Bc8 Ke2 Kf7 b4 Kg6 f4 Kf5 e6 Kg4 b6 Kg3 b5 h5 e7 a5 e8R c5 f5 e3 Kd3 h4 Kc4 d3 d7 h3 f6 a4 g6 h2 d6 a3 g7 d2 f7 a2 b7 e2 b6 e1R Qc2 d1N Qe4 Na6 b8Q Nh6 b7 Nc3 Bd2 Nb5 Rb1 a1B Bc3 Rg8 Kd5 c4 Qc7 Rb8 Qc6 Be7 f8Q Bg5 Qff5 Bf4 Re7 Qf8 d8Q Re3 Qh7 Bg4 Rc7 Be2 d7 Bb2 Rg1 h1Q Qhf5 Kf2 Qh3 Qh2 Qdh4+ Qg3 d8B Ba3 Rh1 Bc5 Be7 Ba7 Rh2 Kg1 Qhf6 Qg4 Qfd4 Qgc8 Qhd7 Bb6 Rh4 Bc5 Qh3 Qg4 Ba5 c3 Bb4 c2 Bc3 Qg6 Rg4 c1R Rh4 Re8 b8B Rc2 Ba7 Rb8 Rg4 Rb6 Rh4 Rh8 g8Q Qge8 Qge6 Rg8 Qb7 Rg6 Qec6 Qef7+ Qhe6 Q7g8 Rg4 Bd1 Bc4 Kh1 Bb3 Re1 Qdd3 Bg1 Qh3+ Bfh2 Qd4 Re3 Rf4 Be2 Rh4 Qh7 Qeg4 Ree6 Qge4 Qhg8 Qd1 Nd4 Qe5 Rb4 Bac5 Rb6 Qdd3 Ndf5 Bf2 Nd6 Rc4 Nb5 Qee3 Ng4 Qed4 Nh6 Qhf5 Bg3 Qfe4 Bf4 Qh3+
3br3/3nQK1b/RBbB4/Bn1R2QR/q4PBr/5Rr1/n2B4/Q2bq1k1 b - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 g5 axb5 g4 d6 g3 hxg3 Bh6 g4 Bg7 g5 Bf8 e4 Nc6 d5 Nb8 Nf3 f6 Nd4 exd4 e5 f5 Nc3 Bd7 Ne4 fxe4 Qd3 Bf5 Qd1 Bc8 Kd2 Kf7 g4 Kg6 b4 h5 f4 c5 b6 a5 b5 a4 e6 d3 Kc3 h4 Kc4 a3 d7 h3 b7 a2 b6 e3 e7 e2 d6 e1Q Kd5 c4 Be2 h2 Ke6 c3 Bd2 Nc6 b8B c2 b7 c1N Ba7 Qe8 b8B Rh4 Bb6 Nf6 Rf1 h1B Rf3 Ba6 d8B Na7 d7 Nb5 Bd6 Bb7 B8c7 Be4 d8R Nd7 Bba5 Bg7 Bcb6 Bf6 Qa4 Kh7 g6+ Kh6 g5+ Kh5 g7 Kg4 g8Q Bh7 g6 Rb8 Bdc3 d2 g7 d1B Bd2 Ra8 Qf7 Bg5 g8Q Bg2 Rf1+ Kg3 Rf3+ Kh2 Qff8 Bf6 Qg5 Bh1 Rc8 Bg2 Rc5 Rc8 Rd5 Rb8 Re3 Kg1 Bg4 Rc8 Qf7 Rc3 Qd4 Qa8 e8R Bd8 Rh8 Qa6 Rde5 Bc6 Qfe7 Rd3 Kf7 Qa7 Bac3 Qa4 Bca5 Ra3 Rd5 Rb3 Rb1 a1R Rf3+ Re3 Rb4 Ra3 Qa1 Na2 Rbd4 Re2 Re4+ Rae3 Re6 Rg2 Rh6 Rg3 Rh5 Bc7 Ra8 Bd8 Bbc7 Re6 Ra6 Re2 Qf8 Re8 Qfe7 Kg2 Bcb6 Kh2 Bbc7 Kg1 Bcb6+
brB2NN1/4N3/2QBNB2/5nPq/1Qbr2Q1/2B2K2/n2qB2b/r1q1q2k b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 h4 g5 b4 e5 f4 d4 Ra4 Bb7 c3 Bc5 cxd4 Rh6 d5 Bf8 Ra3 Rh8 Rf3 Ba6 Rh2 Bc8 Rg2 Nd7 fxe5 Nb8 Rf4 gxf4 g5 Nh6 Rg3 Ng8 Rg4 hxg4 Kf2 Ke7 e4 c5 d4 a5 e6 Kd6 b6 f5 h5 f3 b7 c4 e5+ Kc7 e7 c3 e8N+ Kd7 d6 Kc6 e6 Kd5 d7 Ke4 b5 f4 e7 a4 d5 a3 d6 a2 b6 a1Q h6 c2 h7 Nh6 Bb2 c1Q Nh3 Na6 b8B Bb7 Be2 Nb4 Bc3 Nf5 Bf6 Bc6 b7 Na2 Bc7 Qac3 b8Q Ra4 Qb4+ Qc4 Qg1 Ba8 Bc3 Rg8 h8B Bg7 Qg2 Be5 Bf6 Qd2 Bb8 Qc8 d8N g3+ Kg1 Ke3 d7 Qf7 Ne6 Qh5 d8Q f2+ Kf1 Bc7 Qc6 Bd6 Kg2 f1R Nf8 Rh1 Na3 Ra1 Nb1 Qe6 Qd7 f3+ Kg1 g2 Nf4 Be5 Bd6 Qc4 N4e6 Qc5 Qg4 Rd4 Qdb7 Qa5 Qb4 Qa3 Bg7 Qab2 Nf6 Qbc1+ Bd1 Bf4 e8B Rh8 Bd7 Bg3 Ng6 Rb8 Ng8 Be5 Bc8 Bf4 Qh4 Bg3 Bf6 Be5 Ngf4 f2+ Kh2 f1B Be2 Qce1 Nf8 Qec1 Kh3 Qce1 N4e6 Bh2 Bg4 Bc4 Be2 Qh7 Qh5 Kf2 Qh4+ Kg1 Qh5 Rd3+ Kg4 Rd4+ Kf3 Kh1 Qg4 g1Q Na3 Qb1 Nc2 Qgc1 Ne3 Qh5 Nd5 Qce1 Nde7 Qbb2 Nfg6 Qbc1 Ngf8
2r5/KQP1N1k1/1BQ4n/2q4n/1Q1r3Q/b3qp1R/NN2bN2/q1r1nN1N b - - 0 1 legal: proof: b4 b5 f4 c5 d4 g5 dxc5 h5 g4 e5 a4 Bg7 axb5 Qc7 Ra3 Qd8 Rf3 Bf8 Bh3 Rh7 fxe5 Rh8 Rf4 gxf4 g5 Qa5 Bf5 Qd8 Bg4 hxg4 Kf2 f5 c4 Kf7 e4 a5 h4 d5 c6 d4 h5 a4 c5 d3 c7 a3 g6+ Kg7 b6 d2 e6 a2 b5 a1R h6+ Kf6 e7 f3 Ke3 g3 e8Q g2 e5+ Kg5 g7 f2 e6 Kf6 b7 f1Q h7 Qd5 c6 R1a5 b6 Ba3 e7 Qe6+ Kd4 f4 Rh3 f3 Qb3 d1Q+ Nd2 Qf5 Qb4 Ra4 Ne2 g1N Ng3 Qg4+ Kc5 R8a7 Nh1 Qd3 Nf1 Qh4 Be3 Be6 c8N Bc1 c7 Qhe4 Qc6 Qb1 Nd6 Ba3 Nc4 Nh6 g8N+ Kg7 Nb2 Na6+ Kb5 Qf4 b8N Qdc2 b7 Qa1 Kb6 Nc5 Na6 Bc4 b8Q Be2 Qbb7 Nd3 Bf2 Ne1 e8N+ Kf7 Bd4 Qe3 Nef6 Kg7 Ne7 Rc8 Bc5 Raa8 Ng4 Rab8 Ngf2 Qcc3 Rh4 Nh3 Ka7 Nf4 Bb6 Qcc5 Rh3 Nh5 h8Q+ Kf7 Qd8 Kg7 Qbb5 Rc4 Nb4 Rc3 Na2 Rc1 Qd2 Rd8 Qdb4 Rbc8 Qh4 Rd4 Qb4
4r2Q/Rb1R4/1r3p1n/P5R1/Qn4b1/K1k1bQ1R/Q2bB1bR/B2rB2q b - - 0 1 illegal: No possible last move
QK1k1nR1/3Q3P/1n5Q/R1qb4/rN2r1QN/p1N1b3/4r2r/1rRQ1Nq1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bb7 b3 Bc8 Bh3 Bh6 Bb2 Bf8 f5 h6 Be5 h5 Bf4 gxf4 g5 Bg7 Bg4 hxg4 Kf1 Bh6 Ke1 Bf8 Ke2 e5 Kd3 a5 Kc4 c5 d4 f3 h4 a4 d6 g3 Kd5 e4 f7+ Kd7 b4 e3 h5 g2 b6 f2 g6 f1R f6 c4 h6 e2 h7 e1R b5 c3 b7 c2 g7 c1R b6 Re8 Nc3 Rb1 Qg4+ Re6 Nf3 g1Q Nh2 Rf3 Nf1 Nc6 b8Q Qe7 b7 Nh6 g8R Ra6 Qa8 Na7 b8N+ Kd8 d7 Re4 Nc6+ Kc7 Nb4 Nf5 Ra3 Bg7 f8N Nh4 f7 Rf2 Ng6 Bh6 f8Q Be3 Qh6 Rh2 Ra2 Qf8 Ra1 Kd8 Ra2 Nf3 Nh4 Ng5 Ra3 Rae6 Ra1 Re7 Kd6 a3 d5 Rd2 Rh3 Ne6 Rf3 Rh2 Rf5 Rb3 Rc1 Rb1 Qc6 Ba6 Qa8+ Nc8+ Kc6 Bb5+ Kb7 Bc4 Kb8 Nb6 Re5 Re8 Rh5 Qc5 Re5 Nf8 Reg5 Ke7+ d8Q+ Kf7 d6 Bd5 d7 R8e5 Qc7 Ke7 Qcc6 Kd8 Qca4 Rf5 Qad1 Rff2 R5g6 Re2 Rc6 Qb5 Rc5 Qc4 Ra5 Qc5 Rg7 Rg8 Rg6 Rg7 Rg5 Rf7 Rg8 Rff4 Nd3 Ra4 Nb4 Re4 Na6 Ke7 d8Q+ Kf7 Qdd6 Ke8 Qdc6+ Ke7 Nb4 Kd8 Qcd7+
2R1rnQ1/1P1b3R/N1q2r1b/1qk2n1n/QR2r1N1/2Kp4/1RN1Qr2/2Q1Q3 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qd8 f4 h6 g4 Qc7 f6 Qb6 f5 Qd8 Bf4 gxf4 g5 h5 Be2 Bh6 Bf3 Bf8 Bg4 hxg4 Kd2 e5 h4 d5 c4 Kd7 b4 a5 f7 d4 f6 g3 g6 e4 b6 Kc6 b7 d3 g7 a4 b5+ Kc7 h5 g2 h6 e3+ Kc3 a3 h7 e2 b6+ Kc6 Rh4 e1N Nh3 g1R Nf2 a2 Ng4 f3 Na3 f2 Nc2 f1Q Rb1 a1R Rb2 Bd7 Qe2 Bd6 f8Q R8a2 f7 Nf6 g8Q Qc7 Qfe7 Nf3 f8Q Nd4 Qfe8 Nf5 Qe1 Qf3 Q7e2 Qd5 Q8e4 Bf4 Qd4 Na6 Qde4 Nh5 b8N+ Kb7 Qee8 Bh6 Q8e4 Rf1 c6+ Ka8 b7+ Ka7 Qee8 Nc5 Na6 Ne6 c5 Nf8 Q8e4 Qcd6 c7 Q6c6 c8R Rf4 Qd4 Re4 Qa4 Qb5 c6 Kb6 c7 Qc6+ Qgc4 Rg8 h8R Rg6 Rh7 Rf6 Ra8 Rd1 c8Q Rd2 Qe8 Ra1 Qc1 Ra2 Qee1 Rf2 Rc8 Ra1 Qf4 Rd1 Qc1 Rdd2 Qe5 Rde2 Qh2 Re8 Qg2 R2e3 Qgf1 R3e4 Qfe2 Qd6 Qg8 Qe6 Nc7 Kc5 Na6+ Kd6 Qcd1 Re3 Ne5 Qed5 Rhc4 Re4 Ng4 Qe6 Rcb4 Kd5 Nc7+ Kc5 Qc1 Qec6 Na6+
R1QrR1K1/k1nn4/Nr1R2N1/n1Q2b2/p1RR1q1N/2Q2b2/1P3p1b/1n5N b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 h5 a4 g5 axb5 e5 g4 Na6 d3 Nb8 Bh3 Qd6 fxe5 Qe7 Bf4 gxf4 g5 Qd8 Bg4 hxg4 Kd2 Kd7 Kc3 f5 Kc4 a5 e4 c5 h4 Kc7 d6+ Kb6 Kd5 a4 d4 g3 e6 g2 h5 c4 h6 f3 e5 f2 e7 f1B e8N f4 g6 c3 d7 c2 Ke6 c1N Kf7 f3 d5 f2 e6 Nc6 h7 Nf6 e7 Nb4 g7 Ne4 g8N Nb3 d6 Kb7 b6 Kb8 b7 Nc2 Nf3 g1N Nh4 Ne3 Qd4 Qc7 d8Q Ng4 d7 Nh2 Qc5 Bh3 Nc3 Ne2 Rad1 Bf5 Rd4 Nf4 Ne2 Nd5 Rc1 Na5 Ng3 Qf4 Nc7 Nf3 e8R Bd6 Nh1 Ra6 Rcc4 Rb6 Ne7 Ned2 Neg6 Ka7 b8R Nb1 Na6 Bb7 Qdc8 Nc7 d8R Ne5+ Kg7 Rf8 h8Q Bf3 Kh7 Nd7 Qhe5 Be7 Qe1 Bd6 Qc3 Nf6+ Kg7 Be5 R8d6 Nd7+ Kh7 Rg8 Ree6 Rd8 Re8 Qd2 Kg8 Bh2 Nh8 Qg5+ N8g6 Qf4 Ra8+
3kBK1n/Q1Qb3R/1q4RQ/7p/3rrb2/2RpRQ1r/1B1BnpPQ/1n6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 d4 c5 dxc5 Bh6 a4 Bg7 axb5 Bf8 e4 f6 Ne2 Nc6 f5 Nb8 Nf4 Bb7 Nd2 Ba6 Nc4 exf4 e5 Bb7 e6 Bc8 Ne5 fxe5 Kd2 a5 Kc3 d5 b4 h6 f6 a4 f7+ Ke7 c6 f3 b6 d4+ Kc4 e4 Kc5 f2 c4 a3 b5 a2 c7 e3 b7 e2 b6 e1R g6 Ra7 g7 Re3 Bd2 Rea3 Rc1 a1N Rc3 Rb3 Qf3 Nf6 g8R Nh7 Rg6 Bd7 c8Q Nf6 Qcc6 Bg7 f8B+ Ke8 Kd6 Ra4 e7 Rbb4 c5 Nd5 Bb5 d3 Rh2 Bf6 Bg7 Rd4 Qc7 Bh4 c6 Nb3 Be5 Nc1 Bf6 Na6 b8Q Nc5 b7 Bg5 Qa7 Ne6 b8Q Nef4 Qcb6 Nce2 c7 Re4 c8Q Rad4 Qcc7 Rh7 Rg7 Ng6 Rh4 Nh8 Rg6 Kf7 e8R Bf4+ Be5 Rg7 Rh3 h5 Re7+ Kf8 Rhg3 Rg8 Rh7 Ke8 Bc6 Rc4 Qbe3 Rcd4 Rh3 Bh2 Qh6 Bf4 Qb1 Qb8 Qg1 Qb6 Qh2 Rf8 Qg4 Rf5 Re3 Rg5 Qf3 Rg3 Rgg7 Rh3 Rg6 Ra4 Rb3 Ndc3 Ra3 Nb1 Rc3 Qb7 Bb5 Bc6 Ke6 Bd7+ Kf6 Qb6+ Kg7 Rad4 Bc6 Ke7 Bf6+ Ke6 Kf8 Be8 Be7+ Kf5 Bd5 Ba4 Bf7 Bd7 Qc8 Ke5 Ba3 Kf5 Bb2 Ke5 Rg4 Kf5 Bg6+ Kf6 Qcc7 Ke6 Kg7 Ke7 Be8 Re6 Rg6 Ree4 Qc4 Kd8 Kf8 Be6 Qc6 Bd7 Qcc7+
QN3nQb/1p4Rr/R1p2PN1/Q2r4/2bk3b/2n3q1/pRRN4/1QKQ3r b - - 0 1 illegal: No proof kernel
5N2/QB1QKN2/N2nb1N1/2r3N1/q2k1pQb/2Qb1PNq/pr1R3p/3r4 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 d4 g5 b4 Kd7 d6 Qf6 d5 Ke8 Ra3 Qe7 Rd3 Qd8 Rd4 exd4 h4 g4 f3 g3 Be3 Nc6 Kd2 Nb8 Bf2 gxf2 g4 Qd7 g5 Nc6 h5 Qd8 Kd3 Nce7 Kd2 Ng6 hxg6 Qf6 Rh6 Qe7 Rh1 Qd8 Kd3 Kd7 Ke4 f5+ Ke5 a5 e4 h5 b6 c5 b5 h4 b7 d3 b8N+ Ke8 d7+ Ke7 b6 f4 b7 c4 g7 a4 g6 c3 Qe1 d2 Nh3 d1Q Nd2 a3 Rh2 a2 Ba6 c2 Nf1 c1R Ng3 f1B Qc3 Rc2 Rd2 Rb2 Kf5 Kd6 e5+ Ke7 e6 Kd6 e7 Qe1 e8Q Qa5 Kg5 Bg2 d8N Qa4 Ne6 Nh6 Kf6 Qf2 g8Q Qf1 g7 Nf5 Kf7 Be7 Nf8 Bd7 Qec8 Ra7 Qh7 Bb5 g8N Bd3 Qhg7 Bd8 Ne7 Qh1 Neg6 Rh7 Bc4 Ra5 Ba6 Rh8 Qh7 Rc5 Qh5 Bgf1 Qg5 Bc4 Qg4 Be7 Qe8 Bfd3 Qc8 Rc7 Qe6+ Kc5 d6 Bd8+ d7 Nd6+ Kg7 Be7 d8N Rc8 Qd7 Rc7 Nf2 h3 Nf7 Kd5 Nfe4 Rc5 Nc6 Rh5 b8Q Re5 Bb7 Bh4 Neg5 Re1 Kf6 Rd1 Ke7 h2 Re2 Qf1 Rd2 Qh3 Qa7 Bb3 Qca5 Bc4 Nb4+ Kd4 Na6 Be6 Qc3+
Q3qn1K/1b1B2B1/nBQ2Qkb/1R2p1p1/R7/R2q2Pp/n4B2/n1Q3Br b - - 0 1 illegal: No possible last move, all moves rejected
R1n4r/RK6/5N1q/5R2/rR1PN1b1/npqNb2Q/4pb1N/k1R1Nb1N b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 Kd7 exf5 Ke8 f6 Bg4 Qf3 Be6 Qd1 Bc8 g4 Bh6 f4 Bf8 Bh3 Nh6 Ba3 Ng8 f5 h6 Bd6 h5 Bf4 gxf4 g5 Bd7 Bg4 hxg4 Qc1 Be6 Qd1 Bc8 Kf2 Kd7 d4 Kd6 h4 e5 a4 c5 g6 b5 a6 b4 a7 c4 g7 c3 f7 e4 a5 c2 a6 c1B h5 f3 h6 b3 h7 Bh6 f6 Bb7 Na3 Nc6 Nh3 Qc8 Qd3 Qd7 Rhc1 Ne5 Nc2 Ng6 Ra4 Nf4 Ke3 g3 Rb4 g2 Ne1 g1Q+ Nf2 Qgg4 Nh1 f2 Rc2 Re8 a8R f1B a7 Ne7 g8N Bfg7 f8R Qgf5 f7 Qb5 Nf6 Nc8 Ng4 Qg6 Nh2 Bf6 Qc3 Qc4 Qd3 Rg8 h8N Bh4 Qc3 Qg7 Ng6 Nd3+ Nf4 Nb2 Qd3 Qf6 Qc3 Rg5 Nfd3 Qe6 Kf4 e3 Kf3 e2 Kf4 Kc7 d6+ Kc6 d7 Kd5 d8N Bf2 Kf3 Bc6 Nb7 Bd7 Nbc5 Qea6 Kf4 Bg4 Ne4 Qg6 Rh8 Qc5 f8N Nc4 Nd7 Na3 Rf8 Qa5 Rf6 Rh8 Rf7 Nb6 Raf8 Nc8 a8R Qe6 N7c5 Qc6 Rfa7 Qab6 Nd7 Qbc5 Qd2 Qc3 Qe3 Qb6 Qh3 Qg6 Rbb7 Kc4 Rf5 Rh5+ Ke5 Bhe3 Ndf6 Qh6 Ke6 Rg5 Kd7 Rg6 Nh5 Ra6 Kc7 Ra4 Nhf6 Nd6 Ra2 Qa5+ Kc6 Nc8 Rb6 Qd2 Kb7 Qc1 Nd6+ Kc3 Rb4 Qc2 Nef3 Qb2 Nde4+ Kc2 Nfe1+ Kb1 Nh7 Qc1 Nhf6 Qc3 Rc2 Ka1 Rc1+
3q2kB/1pp3pq/B1bn1RR1/2K4R/R1Rr2q1/QB1P2B1/R6b/B1n1r3 b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 h5 g4 e4 gxh5 Qe7 Nf3 Qg5 Ng1 Qd8 d3 f5 Kd2 e3+ Kc2 Nc6 Nd2 exd2 Bh3 Nb8 Bg2 Nh6 Bf1 Ng8 e4 Qh4 e5 Ke7 Ne2 Qc4+ Nc3 Qh4 Ne4 fxe4 Qe2 Nf6 Kd1 Ke8 Qe1 Qg5 Ke2 Ng8 Qd1 Qd8 Ke3 Kf7 Kd4 e3 f4 e2 h4 e1Q a4 Bd6 e6+ Kf8 e7+ Kf7 e8B+ Kf8 f5 Rh7 f6 Bf5 h6 Be5+ Kc5 Ra7 d6 Qc8 a6 Qg3 h5 Qg4 a5 Bd7 f7 Bf6 Be2 Qg6 Rg1 Bc3 Qa4 d1Q Ra2 Be6 d7 Bb2 d8B Nf6 Bf4 Bg4 Bb5 Bc3 Qa3 Ng8 Bg3 Be1 Bf6 Bd2 Ba1 Ra8 a7 Bd7 a6 Bc6 Bg4 Bc1 Be6 Qdg4 Bb3 Nf6 Rc2 Rh8 h7 Ne8 h6 Nd6 Rc4 Qd8 Rg2 Rg8 h8R Bf4 h7 Be5 Bf2 Bh2 Bg3 Bf3 Rg1 Nc6 Rg2 Rc8 a8R Nd4 a7 Bc6 Ba6 Ne2 Rg1 Nc1 Rg2 Ke7 f8R Q6h5+ Rf5 Re8 Rf8 Ke6 h8B Qh7 Rh5 Ke7 Rf6 Rb8 Re6+ Kf7 Rf6+ Kg8 Ra2 Re7 Rg6 Rc8 Rb8 Re1 a8R Qf8 Ra7 Rd8 Raa8 Rd7 Re8 Rd8 Ree6 Rd7 Ref6 Qd8 Bc3 Nb5 Bb2 Rd4 Ba1 Nd6 Bb5 Qd7 Raa4 Qg4 Ba6
6B1/KB1pP3/RrRr4/6B1/2BR1pkn/n3p1bR/p2BRqbN/B3q3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 c5 dxc5 Be7 a4 Bd6 axb5 Bf8 e4 f6 Qd2 Nh6 f5 Ng8 Qf4 Rh7 Na3 Rh6 Nc4 exf4 e5 Rh7 e6 Rh8 Ne5 fxe5 Kd2 Ke7 Kc3 Kf6 Kc4 Kg5 h4+ Kg4 b4 a5 e7 g5 h6 e4 f6 a4 h7 e3 c6 a3 Kc5 Bb7 c4 Kf5 f7 g4 b6 g3 h5 g2 c7 Ra5+ b5 Kg5 c8B Ba8 b7 Ra6 h6 Ra4 b6 Bg7 f8B Ra6 Rh3 Be5 Bd2 Nf6 Nf3+ Kf5 Nh2 Rg8 h8R g1Q h7 Bc7 Bh6 Nc6 b8R Ng4 Bg5 Rg6 Bb7 Na7 Bd5 Qf8 b7 Rad6 Rc8 Rde6 b8R Rb6 Bg8 Qd8 Be2 Rbd6 Rb4 Ba5 Rc6 Qf2 Re1 a2 Bf1 Qe8 Re2 Nb5 Ra4 Bb4+ Kb6 Na3 c5 Ne5 Ka7 Nf3 Rca6 Be4 c6 Nh4 c7 Bg2 c8B Qd8 Bb7 Bc3 Rd4 Qa5 Bgd5 Rb6 Rc8 Rgd6 h8B Qb4 Bg8 Qb1 Nf3 Kg4 Rc6 Qb4 Bc1 Be1 Bd2 Qg1 Be5 Bg3 Bh8 Qf2 Nh2+ Kh5 Rdc4 Qb1 Ba1 Qbe1 Rd4 Qd1 Re1 Qb1 Bd3 Qd1 Re2 Qde1 Nf3 Kg4 Bb5 Kh5 Bbc4 Kg4 Nh2+
1nKb1n2/4QQR1/1Rb3q1/4R1n1/2P1Q3/Q2Nr3/rRb1NrnR/3kb2R b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qd8 f4 h6 g4 Qc7 f6 Qb6 f5 Qd8 Bf4 gxf4 g5 h5 Be2 Bh6 Bf3 Bf8 Bg4 hxg4 Kd2 Kf7 Kd3 d5 Kd4 a5 Ke5 d4 b4 g3 c4 d3 h4 g2 h5 f3 b6 f2 b7 f1N b5 d2 c6 e6 c7 a4 h6 a3 h7 a2 b6 Qe8 Qe1 d1B Nh3 g1N Qe4 Ne3 Nf2 Nh3 Nc3 Ne7 Kd6 e5 Ne2 Bd7 c8Q Ng6+ Kc7 Ng2 Qd8 Bc6 Kc8 Ra3 Nd3 Bc2 Rae1 a1R Rh2 Rg8 h8R Be7 Rh5 Nf8 Reh1 Na6 b8R R1a2 b7 Rh8 Ra8 Nb8 Ra6 Rh6 Rb6 Rh7 Qh4 e4 Rb2 e3 g6+ Kg8 f7+ Kg7 Qf4 Kf6 g7 Ng5 g8R Rh6 Rg7 Rh8 Ng1 e2 Qe4 e1B Ne2 Rg8 Nb4 Re3 Nd3 Ng6 f8Q+ Qf7 Qfe8 Nf8 Qa5 Bd8 Qa3 Qg6 Rb6 Na6 b8R Rh8 R8b7 Nb8 Rb2 Rh6 R7b6 Rh7 R5h3 Rh4 Rg3 Rf4 Re7 Rf2 Re5 Nh4 Rgg1 Ng2 Qd7 Nh3 Qf7+ Kg5 Ndf4 Kg4 f6 Ng5 Nd3+ Rf4 Qf5+ Kf3 Qfe7 Re4 f7 Ke3 Qfe6 Kd2 Qd5 Re3 Qe4 Nfh7 f8Q Rf2 Qff7 Nf8 Rh7 Kd1 Rg7 Nf4 Rh2 Ng2 Rgh1
q5b1/R1Q2QRq/P4rB1/3n1B2/1RnBK1B1/1R2b1R1/n5pr/k1Rn2q1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 bxa3 Na6 a4 Nb8 a5 Be6 Be2 Bh3 Bf1 Bc8 g4 Qd6 f5 Qd7 Nc3 Qd8 Nce2 h6 Nf4 gxf4 Nh3 h5 g5 Be6 Nf2 Bc8 Ng4 hxg4 Kf2 Kf7 d4 e5 a4 b5 h4 c5 a6 e4 g6+ Ke8 g7 Kf7 d6 b4 a7 c4 h5 c3 a5 f3 Ke3 b3 h6 f2 d7 b2 h7 b1Q d5 c2 d6 g3 Qf3 g2 Bb2 c1N Rh4 Qe8 d8Q Qd7 Be2 f1Q Qc7 Qa2 Bd4 Qe7 d7 Nc6 d8R Be6 Rb8 Ne5 Rb3 Qg1+ Kf4 e3 Ke4 Rc8 a8B Nc4 Rg4 Qa3 Rg3 Na2 Qff4 Qd7 Bg4 e2 a6 e1N Rc1 Bc5 Rcc3 Rf8 Bb7 Bb6 Bc8 Nc2 Rb4 Ne7 g8B+ Ke8 Qf2 Nd5 f7+ Ke7 Qf1 N2e3 Qf3 Re8 f8R Nd1 Bf7 Qa5 Bg6 Bg8 Rf6 Rf8 Rd6 Bc5 Rdb6 Rf6 Rb7 Qb5 Ra7 Qb8 Rbb3 Ba3 Rb4 Bc1 Qf2 Be3 Rcb3 Rd6 Qf3 Qa8 f6+ Kf8 f7 Ke7 f8R Rf6 Qc6 Qdb7 Bcf5 Qd7 Qc8 Kd6 Rf7 Qdb7 Rg7 Qc7 Ra4 Kc6 Rc3 Kb5 Rb4+ Ka5 Rbb3 Qf7 Qc7+ Ka4 Rc1 Qd7 Rb4+ Ka3 Rcb1 Nc1 R1b3+ Ka2 Rc3 Ka1 Rbb3 Be6 Qff4 Na2 Qf1 Rhf8 h8R Bg8 Rh4 Qf7 Bh7 Qh5 Bhg6 Qh7 Qff4 Rc8 Qf7 Rd8 Q4c7 Rdd6 B6h5 Rh6 Bhg6 Rf6 Rh1 Qf2 Rb4 Rh2 Re1 Qg1 Re2 Rh6 Reb2 Rh1 R2b3 Rh2 Rc1#
r5B1/4R1Q1/3R2RP/k2q1Rbn/1BrQbnQq/4bnp1/1Kp5/1R3Q1R b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bd7 f5 Be6 Nh3 Bc8 Nc3 h6 Nf4 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 h4 Kd7 b4 a5 d4 c5 Kd2 Kc7 Kc3 Kb6 h5 e5 h6 e4 g6 c4 d6 f3 f7 a4 g7 e3 d7 g3 d5 f2 f6 a3 d6 e2 Rb1 e1Q+ Bd2 a2 Qg4 Rh7 Kb2 Be7 f8Q Qe4 f7 Qe8 d8R Bf5 d7 Nf6 g8Q Nc6 Qg8g7 Nh5 Bg2 Qe6 Bd5 Bg5 Rbe1 Qd6 Re7 f1N Bc3 Ne3 Be1 Kb7 b6 Ka6 b7 Be4 b8R Ne5 Rb7 Nf3 Rb6+ Ka7 b5 Ng2 Be6 Ngf4 Bb4 Qd5 Rc6 Rh8 b6+ Ka6 b7+ Kb5 b8R+ Ka4 Rdc8 Qd8 Rd6 Rg8 Rcc6 c3+ Kc1 c2 Kb2 Rh8 Rb5 Rc8 Rcb6 Rc4 Ra6+ Qa5 d8Q Rg8 Rac6 Rh8 Qd7 Qd8 Qd4 Rg8 Qfg7 Rh8 f8R Rg8 Rf5 a1B+ Kc1 Rh8 Bg8 Bc3 Qc8 Bd2+ Kb2 Be3 Rg6 Q8d6 Qcf8 Qf6 Bh7 Rg8 Rd6 Rh8 Qff7 Ra8 Bg8 Ng2 Rf4 Bh4 Ka2 Ne5 Ba3 Qg5 Rbb1 Ka5 Rf3 Qf6 Kb2 Qf4 Qh3 Bg5 Qfe6 Qh4 Qeg4 Rc7 Rff6 Nf3 Rf5 Ngf4 Qf1 Rc4 Bb4+
qBbR1R2/1n2nn2/q2R3p/1P4Bb/Q2bp1k1/1rR3B1/KBrQ4/3B1B2 b - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 g5 axb5 g4 d6 g3 hxg3 Bh6 g4 Bg7 g5 Bf8 e4 Nc6 d5 Nb8 Nf3 f6 Nd4 exd4 e5 f5 Nc3 Bd7 Ne4 fxe4 Qd3 Bf5 Qd1 Bc8 Kd2 Kd7 Kc2 a5 Kb1 c5 f4 d3 b4 d2 g4 a4 g6 a3 e6+ Ke8 e7 Kd7 b6 h6 g5 c4 b7 c3 f5 c2+ Ka2 Qc7 g7 Nf6 g8R Ra5 g6 Ne8 f6 Rb5 g7 Rb6 f7 Rb5 Bb2 Qa5 Rh3 Qa6 Rf3 Nc6 b8B c1Q Qe2 d1B Qd2 Qc2 Rb1 Qca4 Rc1 Be2 Rd1 Rh7 Rh8 Qa8 g8Q Bg7 f8B Bd4 Bg7 Rc5 Be5 Rc2 Bg3 Q4a6 b5 Rg7 Qf7 Rg4 Rf8 Rf4 Rd3 Bh5 Rf3 Rh4 Qg6 Rh3 Qg8 Ng7 Qh7 Ne6 Qg8 Ng5 e8B+ Kd8 d7 Ke7 d8R Nf7 d6+ Ke6 d7 Ne7 Rc3 Kf5 Qh7+ Kg4 Rf3 Bc5 Qh8 Ba7 Qhd4 Bb6 Qa4 Bd4 Kb3 a2 Ka3 a1N Ka2 Nd6 Bf7 Nb3 Bg8 Na1 Bb3 Nf7 Qb4 Be3 Rf5 Q8b7 Bh2 Rc5 Rd6 Bd4 Qd2 Qba8 Bd1+ Rf3 Bf4 Nb3 Bg3 Rc2 Rff6 Nc5 Rf4+ Kg5 Rff6+ Re3 Rf3 Kg4 Rde8 Nf5 d8B Nb7 Bg5 Rb3 Red8 Ne7 Rc3+
3B2Q1/n2r1B1p/r2qBqp1/2B3Q1/1p3N2/1P2KB2/kbQp4/rQB2bN1 b - - 0 1 illegal: No possible last move
3B3N/1b1B1R2/1ppkpp2/1BP5/5Nb1/5BKB/rbNb1BB1/q4Bb1 b - - 0 1 illegal: No possible last move, all moves rejected
Rnr1kb1b/P1RQ4/4B2B/Bq4RK/1qpBQ1Q1/q2r4/2nQR3/2rb4 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 bxa3 Na6 a4 Nb8 a5 Be6 Be2 Bh3 Bf1 Bc8 g4 Qd6 f5 Qd7 Nc3 Qd8 Nce2 h6 Nf4 gxf4 Nh3 h5 g5 Be6 Nf2 Bc8 Ng4 hxg4 Ke2 b5 d4 c5 a4 e5 h4 e4 g6 b4 a6 e3 g7 b3 f7+ Ke7 a5 b2 f6+ Kd7 a7 b1Q a6 g3 Kf3 c4 Kg4 e2 d6 e1B h5 g2 h6 g1Q+ Kh5 f3 h7 f2 d5 Qb2 Ra5 Nh6 g8Q Nf5 Qgg4 Bc3 Rh2 Bd2 Bh3 f1R Re2 Be3 Qd2 Bfh6 f8Q Re1 f7 Rg8 h8B Qb7 Bd4 Qb4 Qfg7 Bef4 f8R+ Qe7 Rf7 Be5 Qe4 Ke8 Qgg4 Bf8 Rh7 Qeb7 Rc7 Ne3 Rac5 Q7b5 d7+ Kf7 d8B+ Ke8 d6 Nc2 Rd5 Qe3 Rdc5 Qea3 d7+ Kf7 Rd5 Bh8 Rg5 Bb7 B8f6 Bc6 d8Q+ Bd7 Be7 Be6 Qd6 Ke8 Bd8 Rg6 Qdd5 Rf6 Qb7 Rf3 Qbd5 Rd3 Qdf5 Nc6 Qh7 Rc8 a8R Nb8 a7 Rf3 Rb7 Rg3 Ba5 Rd3 Rc7 Rd1 Bg7 Rf1 Bcb2 Rc1 Bh6 Qe5 Qhf5 Bd7 Qh7 Ba4 Bd4 Bb3 Qg1 Ba4 Be6 Qeb5 Qg7 Ne3 Qgh7 Bd1 Qgg4 Nc2 Qd7+
Bq5b/3P2Qn/1bbQRB1k/1n2B1b1/q5p1/2Qr1B2/R5K1/rR1QRn2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bd7 f5 Be6 Nh3 Bc8 Nc3 h6 Nf4 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 Kf7 b4 e5 d4 c5 h4 a5 b6 c4 g6+ Ke8 f7+ Ke7 b5 Kf6 h5 Kg7 h6+ Kf6 g7 Kg5 f6 e4 h7 e3+ Kg2 c3 d6 a4 d5 e2 b7 e1Q b6 c2 d7 a3 d6 a2 Bb2 c1B Be5 Ra6 Be2 Qb4 Bf3 Qa4 Re1 Nc6 b8R Kh6 b7 Na7 Ra8 Bd2 b8R Nb5 Rb6 Bb7 Rb1 Qb8 d8B a1B d7 Bc5 f8Q Bc6 f7 Nf6 Qd6 Ra5 Rba6 Bb6 f8Q Bde3 Qf7 Re8 g8B Re6 h8Q+ Nh7 Qc7 Rd6 Bdf6 Rd3 Qd6 Bad4 Qc4 Ba1 Qc3 Bc1 Be4 Bab2 Bgd5 f3+ Kf1 f2 Bf3 Bg5 Kg2 f1N Qg8 Qa7 Re8 Qb8 Re6 Qe4 Qh8 Ra1 Ra2 Qa4 Qg7+ Kh5 Qcc5 Na7 Qgf8 Bc3 Bd4 Nb5 Bh8 Bb7 Bde4 Bc8 Ba8 Bb7 Bdg7 Bf6 Qc3 Bc6 Qg8 Be7 Be5 Bef6 Bg7 Kg6 Bf8+ Kh5 Be7 Bh8 B7f6 Kh6 Qg7+
5NRN/rq5N/Q1Nb2Qr/3b1qQR/1np1k3/K2R3p/3nPr2/5bRQ b - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 Nh6 axb5 Ng8 h4 g5 f4 e5 fxe5 Nd7 b3 Nb8 h5 Qd6 Bb2 Qf6 Bc1 Qd8 g4 Qd6 Ba3 Qe7 Bc5 Qd6 Bf2 Qd8 Bh4 gxh4 g5 Ne7 g6 Rg8 g7 Rh8 Bg2 Ng8 Be4 Nf6 Bd3 Ng8 Bg6 hxg6 d4 Ke7 Kd2 c5 Kc3 a5 Kb2 f5 b4 f4 e6 Kf6 h6 Kf5 b6 f3 e7 a4 e8Q g5 h7 f2 d6 f1B b7 c4 d5 g4 b5 g3 d7 g2 d6 Nh6 g8R Qb6 d8R Ra6 d7 Qe3 b6 Qe6 Nc3 Nf7 Na2 Ng5 Nb4 Ra7 Ka3 Ke4 Nh3 g1Q Qg6+ Qf5 Qe1 Na6 b8Q Qh2 b7 Nf3 Qbd6 Qg2 b8N Nd2 N4c6 Nb4 Rg1 Bb7 Ng5+ Ke3 Rd1 h3 Re8+ Qge4 d8Q Ba8 Qde6 Bd6 Nd7 Bb7 Nf8 Ba8 Nb8 Bd5 Nc6 Kf4 Qec8 Qe7 Qa6 Qb7 Nge6+ Ke4 Qdg5 Nf3 Rd3 Nd2 Rb8 Qe7 Rb5 Qb7 Kb2 a3+ Ka1 a2 Kb2 a1R Ra5 Rd1 Ka3 Bg2 Qf1 Bf3 Qfg2 Rf1 Qh1 Bg2 Rg7 Rg8 h8N Rf2 Nh7 Re8 Nef8 Re6 Rg8 Rf6 Q6h5 Rh6 Qhg6 Be6 Rf3 Bf1 Q5h5 Bf7 Rd5 Be6 Rdd3 Bd5 Rfg3+ Bg2 Rg5 Rf3 Qg4+ Rf4 Qg3 Rf1 Rh5 Rf2 Rf3 Bf1 Q3g5 Rh2 Rd3+ Rg2 Qh2 Rf2 Qh1+
5n2/1NQ5/kn1N2qb/1R1b3n/2pbQ2p/1R3nRQ/KRN2QNP/4r2q b - - 0 1 legal: proof: d4 b5 c4 d5 cxd5 Kd7 e4 a5 a4 Ra7 axb5 Nc6 d6 Ke6 d7 Nb8 d5+ Kf6 d6 Rb7 Qf3+ Ke5 Qd1 Ke6 f4 Rb6 Bd3 f6 Bd2 Kf7 Bc3 g6 f5 Rc6 Be5 fxe5 f6 Rc5 Bc2 Rd5 exd5 Qe8 Bd3 Qd8 Bf5 gxf5 Kd2 h5 Kc1 c5 b4 c4 Kb2 e6 g4 e4 b6 a4 b5 e5 b7 a3+ Ka2 f4 g5 f3 b6 e3 Qf1 h4 Qh3 e4 Ne2 f2 Rg1 f1N Nf4 e2 Rg3 e1N Ng2 Qe8 d8Q e3 d7 e2 d6 Bh6 Qc7 Nf3 d8N+ Kf8 f7 e1Q d7 Ke7 g6 Nf6 g7 Ne3 g8Q Qh1 Qg6 Ned5 Qc2 Nh5 Qf2 Rh7 f8R Qg6 Nf7 Rh8 d8N+ Nd7 b8R Bb7 Nd6 Bc6 b7 Nb6 Rf6 Bd5 Rf5 Re8 Qc6 Nf8 Rfg5 Be6 Qe4 Kd7 Rb5 Kc7 Nd2 Ne1 Nb3 Nf3 Rb1 Bd5 Nd4 Re6 Nc2 Re7 Ka1 a2 Kb2 a1B+ Ka2 Bh8 R1b2 Re8 Ra8 Bf6 Ra3 Bd4 Re3 Kb8 Reb3 Ka7 b8Q+ Ka6 Qc7 Re6 N8b7 Re7 Qf4 Re1 Qe4
3KB1N1/1R2n2N/1r1P1P2/1qQ1Bk2/Q1r1p2n/r1R2n2/4rnRQ/n6B b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 dxe4 h4 gxh4 c4 f5 b6 f4 b5 f3 b7 Qd5 b6 Nc6 b8R Qd8 Nxf3 Bh6 b7 Be6 Ng1 Bd5 cxd5 Bg7 Ba3 Bb2 Bxb2 Na5 Bc1 Nc6 Ke2 Kd7 Ke3 e5 g4 a5 d4 h5 f4 h3 g5 h2 d6 Ke6 f5+ Kf7 f6 Ke6 g6 h4 d7 a4 g7 h3 d5+ Kf5 Bb5 a3 Qa4 a2 Bb2 Ra7 Nc3 Nge7 g8B Qe8 d8Q Ng6 Rc1 a1N Qe7 Nh4 Qc5 Ne7 Nf3 c6 Rhe1 h1R Rg1 h2 Ng5 Ra8 Rg2 Re1+ Re2 h1N Nh7 Qh5 d6 Ra7 Nd5 Nf2 Rc3 Ra6 Bf7 Rb6 Be8 Rg8 Bc4 Rg2 Bb5 Reg1 Rec2 Rh2 Be2 Rg3+ Bf3 Rgh3 Rc8 Rg3 b8Q Rhg2 Rc7 Rh2 Qca5 c5 Rb7 c4 Qc5 Rgh3 Qba8 Rg2 Qa2 Rhg3 Q8a4 Rh3 Rb3 c3 Rd2 c2 Rc3 c1R Rdc2 Rhh2 Rd2 Rg4 Bh1 Rb1 Re2 Rb3 Rd2 Ra3 Re2 Nd3 Rg2 Nf2 Kd2 e3+ Ke2 Ne4 Kd3 e2 Kc4 e1N Kb5 Nef3 Kb6 Nf2 Kc7 Rc4 Kd8 e4 Rd3 Rbc1 Be5 Rb1 Rc3 Rb6 Ne3+ Ke6 Ng4 Kf5 Qd2 Qf7 Qb2 Qd5 Qe2 Qc6 Qb2 Qb5 Nh6+ Ke6 Ng8 Kf5 Qd2 Nd3 Rg1 Rg2 Qdf2 Rh2 Qg3 Re2 Qh2 Nf2 Rg2
1q5q/bQ2KR2/2b1N1k1/6B1/QB2bP2/bNR3Q1/1R2Pbp1/2r2bNb b - - 0 1 legal: proof: c4 d5 a4 b5 axb5 g5 d4 g4 h4 e6 g3 Nc6 Bg2 dxc4 d5 Nce7 d6 Nc6 Bd5 exd5 f4 a5 Qd3 f5 Qb3 Ne5 Qd1 Ne7 Qd3 Rg8 Qd1 Rg5 hxg5 N7g6 fxe5 f4 Qd2 f3 Qd1 Nf4 gxf4 Ba6 Nc3 Qd7 Rh5 Be7 Qa4 Kf7 Kd1 Rh8 Rh1 Bc8 Ke1 Qd8 Qd1 Bf8 Nb1 Ke8 Kf2 Kf7 Kg3 h5 Kh4 c5 b4 d4 b6 g3 d7 f2 b7 d3 b8Q c3 b5 c2 b6 a4 b7 a3 Rh3 a2 Qd6 d2 b8R g2 Qc6 f1B Ra8 c4 Ra7 c3 Ba3 c1B Qda4 d1B Nd2 Bc2 Rb1 a1Q Nb3 Be3 Bb4 Bfc5 e6+ Kg7 e7 Bb7 g6 Be4 Kg5 c2 Qd5 Qb8 d8B c1B Rg3 h4 e8N+ Kf8 Bf6 h3 Ng7 h2 Ne6+ Kg8 g7 Kh7 Bd8 h1B Rf3 Ba8 Rf7 Ba3 Be7 Qd4 Rb2 Ba7 Qdd7 Bad5 Qb7 Bf2 Re3 Rd8 Rc3 Bc6 Bf6 Qc4 Bfe7 Rd1 Kf6 Rc1 g8Q+ Kh6 Qg4 Qc5 Qg3 Qh5 Rf8 Qh2 Kf7 Qh4 Bg5+ Kh5 Ke7 Kg6 Rf5 Qhh8 Rf7
5Q2/bQRR1nnR/2PQnbK1/2rq1B2/5pPB/3np2N/5B1n/2k4N b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 gxh4 exd5 c5 d4 cxd4 b4 e5 f3 a5 Be2 a4 Bh6 e4 Bc1 e3 Bf1 Ra5 bxa5 Bf5 Qe2 Bd3 Qd1 Be4 fxe4 Qc8 Nf3 Qc7 Ng1 Qd8 Ke2 Ke7 Kd3 Kd6 c4 Kc5 g4 Kb4 c5 h5 b6 f5 b7 f4 a6 a3 e5 a2 Ke4 h3 Kf5 d3 e6 d2 e7 h2 e8R h4 a7 h3 a8Q Nh6+ Kg6 Nc6 b8B Nf7 d6 Nd4 c6 Ne6 d7 Bc5 Re7 Rh5 Bd3 Ba7 Nc3 Rc5 Nce2 Qa5 Ng3 Kc3 Rb1 a1B d8Q Qa2 Be4 Qd5 Rbb7 Bb2 Qd6 Ba1 Qa4 d1N Bc7 Nf2 Qf8 Nd3 Qa6 Kc2 Bd2 Bf6 Bd8 Kd1 Be1 Kc1 Rec7 Ra5 Nf3 Rc5 Rg1 h1N Ng5 h2 Nh3 Neg5 Bf5 Ne6 Ne4 Ng3 Rh1 Nh5 Ng3 Nhg7 Bf2+ Kc2 Rd1 h1N Rd2+ Kc1 Be7 Bd4 Bh4 Bf6 Rbb2 Ne1 Qb7 Nf3 Rb4 Nh2 Re4 Ned8 Ree7 Nde6 Rd4 Bb8 Red7 Ba7 Re4 Neg5 Ree7 N5e6 Bg1 Nf2 Nh1 Nd3 Bgf2 Ne8 Bfg3 Nfg5 Rh7 N8g7 Be1 Nf7 Bef2
rn1r2r1/1p1n2QB/2pBN1N1/b1RQR3/R1n5/B1P2k1P/4N2K/1br5 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f5 e4 axb4 exf5 d5 g4 h5 gxh5 Qf6 a3 Qd6 exd6 bxa3 f4 Kf7 Kf2 Kf6 Kg2 g5 d7 a2 d8R g4 h3 g3 c3 c6 h6 d4 h7 d3 Nd2 Bc5 Nc4 d2 Rd5 Ra5 Bd3 Ba3 Ne2 Nd7 Ne5 Ra8 Re1 Nb8 Ng6 Bb4 Rc5 Ba5 Ba3 Bd7 Kh1 g2+ Kh2 g1R Qb3 d1N Qd5 Nb2 Bb1 Kg7 f6+ Kh6 f5 Kg5 f7 Nf6 f8B Nc4 Bd6 Rd8 h8Q Be6 Qg8 Nfd7 f6+ Bf5 f7 Rg3 f8N Rg4 Ne7+ Kh4 Qgf7 Rg8 Qg7 Bd3 Ne6 Bg6 Be4 Bh7 Rab1 a1R Rb4 Rc1 Ra4 Bg6 Bh1 Bd3 Be4 Bb1 Bh7 Bb6 Ng1 Ba5 Re5 Rh8 Kh1 Rhg8 Ng6+ Kg3 Re1+ Kf2 Ne2 Ke3 Kh2 Kf2 Rg1 Ke3 Rg5 Kf2 Rh5 Ke3 Re5+ Kf2 Re4 Kf3 Re5+
8/N1pB1KP1/3qRQ1N/1k6/3q2q1/1Pr1Q1pQ/BqR3r1/b2nNr1B b - - 0 1 legal: proof: d4 b5 g4 f5 c4 fxg4 d5 b4 Bh6 b3 axb3 e5 Be3 d6 c5 Qf6 cxd6 Qd8 Bd4 exd4 h3 a5 Qc1 g5 Qd2 g3 Ra4 g4 Bg2 Nd7 Qb4 Nb6 Qd2 Nc4 Qh6 Na3 Bf1 g2 Qc1 g3 Qd1 Bg4 hxg4 Nh6 Rc4 a4 Rc1 Ng8 Nc3 Nb5 Ra1 a3 Nb1 a2 Rh6 Na3 bxa3 Ra5 Rh1 Ra8 Kd2 Kd7 Kd3 h5 Ke4 d3 Ke5 h4 e4 d2 f4 h3 g5 h2 f5 Rh3 a4 Ne7 Kf6 Ng8+ Kf7 Ra6 f6 Be7 g6 Bf8 e5 Rh4 g7 Rb4 a5 Rd4 e6+ Kc8 e7 Kd7 e8B+ Kc8 d7+ Kb7 d6 Kc6 Nc3 Qa8 d8Q+ Kc5 d7 Rb4 Nb5 Qf3 Qe2 d1R Qc8 Qe4 d8N Qb1 Nf3 g1Q Nd6 Qd4 Ne1 Rb5 Bd7 Qf5 Qe3 Ne7 Bd3 Nd5 Rc1+ Nc3 Nc6 a1Q Bb1 Qg4 Rc2 Be7 Nf5 Qb2 Ba2 Rb4 Rf1 h1Q Nh6 Rc4 Rf3 Ra7 a6 Kb5 Rff2 Qhe4 Rfe2 Qee5 Qh8 Ra8 a7 Qed6 Qh7 Re8 a8B Ra1 Bb7 Nd1 Qf5+ Rc5 Qf1 Rb1 Qh3 Rc3 Qd2 Qa7 Nf3 Nf2 Nb8+ Rc6 Qc3 Rg1 Ne1 Rf1 Qf3 Bd8 Re3 Re7+ Kg8 Qba3 f7 Nd1 f8Q Re8 Ree2 Bf6 Qf4 Re4 Qe7 Q7a4 Kf7 Ba1 Qef6 Qb2 Re3 Rd4 Re6 Rd2 Qe3 Qad4 Ba8 Kb6 Bb7 Rc3 Bh1 Rg2 Nc6 Kb5 Na7+
8/b2PKb2/NBNpQ2b/3q3p/1rQ1n2p/k1P1r2R/4N1Q1/R2n2RB b - - 0 1 legal: proof: h4 a5 a4 g5 d4 gxh4 e4 c5 dxc5 f5 exf5 d6 c6 Qd7 cxd7+ Kf7 b4 b5 axb5 axb4 Kd2 e5 Ke3 Ke7 Ke4 h5 Kd5 b3 g4 b2 f4 e4 c3 e3 f6+ Kd8 Ke6 Kc7 f5 Kb6 f7 Kc5 f6 e2 g5 e1B b6 Bd2 b7 Na6 b8N Rh6 g6 Rh7 g7 Ne7 g8Q Bg5 Bg2 Nd5 Qa4 Ne3 Rh3 Bb7 Nc6 Rb8 Ne2 Nd1 Bh1 Bfh6 f8R Be3 Nd2 b1Q f7 Qb3+ Ke7 Qd5 Qg2 Rh8 Qag4 Kb5 Nb3 Nc5 Qe6 Ne4 Rg8 Ba7 f8Q Ba8 Ba3 Ka4 Qf4 Rb4 Rgg3 Rf8 Qfg4 Rf3 Nc5+ Kb5 Na6 Ka4 Bc1+ Kb3 Bg5 Re3 Bf6 Bb7 Bd4 Ba8 Bb6 Bb7 Nc7 Ba6 Qgg8 Bc4 Na6 Kb2 Rg5 Ba2 Rg4 Ka3 Rg7 Qd4 Qc4 Qd5 Qe6 Qd4 Qd3 Nc5 Qf3 Bb8 Rg1 Ne4 Qg2 Ba7 Qf5 Qc5 Rb1 Bd5 Qc4 Bf7 Qfe6 Qd5 Ra1+
1q1N2KR/b1p1r3/3N1r1b/2Q2B1B/2Q2P2/1Q2nkRp/2q2P1p/BN4n1 b - - 0 1 legal: proof: h4 b5 c4 f5 a4 g5 e3 d5 cxd5 f4 exf4 gxh4 axb5 a5 b4 Ba6 bxa6 axb4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 g4+ Kf6 d6 h5 Kd5 e5 d4 e4 d7 e3 a7 b3 g5+ Kf5 g6 e2 g7 Kg4 Ke6 b2 Kf7 h3 d5 h4 d6 Be7 Nf3 e1B Bd3 Bc3 Qb3 Nf6 Ng5 Re8 g8Q Bf8 Ne4+ Kf3 Rh2 Qc8 d8Q Nc6 d7 Nd5 Qe7 Qb8 d8N Nd4 Qc5 Ne3 Nd6 Ne2 Bf5 Bh6 Bd2 Bd4 Bc3 Re5 Rg2 h2 Rg4 h3 Ra3 Qb6 Ra6 Rc8 a8B+ Re4 Bb7 Ng1 Ra8 Qb4 Bc6 Qb8 Be8 Re6 Qcc4 Ba7 Qg5 Re7+ Kg8 Qb5 Bh5 Qb8 Na3 b1Q Ba1 Qc2 Nb1 Rh7 Qe7 Rf7 Qe5 Rf6 Qec5 Bf8 N8f7 Re8 Nd8 Re7 Kh8 Qc8 Ne6 Qa6 Re8 Bh6 Nd8 Qc8 Rf8 Re8 Kh7 Re4 Rh8 Qb8 Kg8 Re7 Rg3+
1R5q/B1pNBprQ/KQr3P1/2rR1pQ1/6bB/3n4/P1n2NN1/1k2n3 b - - 0 1 legal: proof: g4 g5 c4 h5 gxh5 d5 cxd5 a5 b4 axb4 h4 e6 hxg5 Ra6 Bg2 Ra3 Bf1 Ra8 f4 Nh6 e4 Ng8 f5 Na6 e5 Ke7 f6+ Ke8 Bh3 Nh6 Bf5 exf5 e6 Ng8 e7 Kd7 e8N Be7 fxe7 Nb8 Ke2 b5 Kd3 b3 g6 b2 d6 Ke6 h6 Kd5 h7 b4 d7 b3 Nc3+ Ke5 Kc4 b1N d4+ Ke6 d5+ Ke5 d6 b2 Qd2 Ra4+ Kb5 Rc4 Nf6 Nc6 e8Q+ Nge7 Nce4 Bb7 Ne2 Rg8 h8Q Rg7 Rd1 Nb4 Nf4 Nc2 Nf2 Rc6 Qh7 Ne1 Ng2 Qb8 Qc8 Nd5 d8B Nf4 d7 Nfd3 Qg5 Kd4 Be3+ Kc3 Be7 Kc2 d8B Qa8 Ba7 Na3+ Ka4 b1R Qb8 Rbb6 Nd7 Rb5 Rab1 Rbc5 Rb3 Ba6 Qb6 Bc4 Rb4 Bd5 Rb5 Bf3 Ka5 Bg4 Ka6 Nb2 Rd5 Kb1 Rb4 Nac2 Rb3 Rc3 Kb5 Qb8 Qgh5 Qa8 Bh4 Qc8 Bde7 Qh8 Qg5 R3c5+ Ka6 Re6 Qc6 Na3 Rb8 Nac2 Qb6 Rd6 Rd4 Rdc6 Rd5 Rc4 Kb5 Nbd3 Bc5 Rc3 Be7 R3c5+ Ka6+
Rbb1b2K/pPp5/2B1r2Q/NRN3q1/2p3P1/Q1R2Np1/7n/2n1Q1Bk b - - 0 1 illegal: Other
q3N3/n3r3/r1QBR2n/5k2/1qqB1P1K/3Qr2b/n2NbPb1/Q1RBN3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 g5 e4 gxh4 a4 f5 axb5 Bh6 g3 Bf4 gxf4 fxe4 b4 Kf7 d4 Kg6 b6 a5 d6 h5 b7 c5 d5 e5 b5 e3 d7 e4 d6 c4 b6 c3 Ra3 h3 Bg2 a4 Nd2 c2 Ne2 h2 Bf3 h4 Ng3 e2 Nh5 h3 Ng7 Nc6 b8N Qc7 d8Q Rh7 d7 Nh6 Bb2 c1N Re3 a3 b7 a2 Nf1 a1Q Ne8 Re7 Na6 Qa4 b8B Na2 Kd2 e1R Nc5 Ra5 Re2 e3+ Kd3 Qb7 Qa1 Qa8 Qc7 Na7 d8Q Ra6 Qc6+ Be6 Bf6 Bc4+ Kd4 Kf5 Nd3 Qc2 Rg1 h1B Qdd6 h2 Qa3 Rb1 Bd6 Bg2 Re1 e2 Qb3 Rc7 Ke3 Bh3 Bd4 h1B Rg6 Qc3 Re6 B1g2 Bh5 Rb2 Rc1 e1Q+ Be2 Qc2 Qa3 Qa5 Bd1 Re7 Ne1 Be2 Nd2 Qb4 Qac3 Bgf1 Q3c4 Rb3+ Qcc3 Rba3 Qb3 Qcc4 Qbc3 Bd3 Kf3 Bfg2+ Kg3 Be2 Kh4 Rb3 Qc2+ Rd3 Qb3 Re3 Qd3+
2bQKRqB/kq6/r2N1NNn/P3QQ2/nbBP3R/2r3q1/1B3b2/2n2r2 b - - 0 1 legal: proof: e4 d5 b4 a5 c3 d4 cxd4 axb4 g4 c5 d3 f5 exf5 h5 gxh5 c4 Bg5 cxd3 Bf4 Qd6 Bc1 Qd8 Kd2 Kd7 Ke3 Kc6 Kf4 Kb6 Kg5 e5+ Kg6 b3 Kf7 g5 f4 d2 a4 e4 h4 b2 f6 g4 a5+ Ka7 f5 b5 h6 g3 h7 b4 h5 e3 h6 g2 Na3 b1N Qg4 d1R Ne2 g1B Nf4 e2 Bb2 e1Q Rh4 b3 Nh5 Nc6 Bc4 Bf2 Nb5+ Kb7 Qh3 Nc3 Nd6+ Ka7 Qe3 Rc1 Qe5 Na4 Ra3 Qg1 Ra2 Qc7+ Ke8 Rc3 f7 Nb4 f6 Nd3 Ra3 Be7 f8N Nc1 f7 Qb8 Ng6 Qg3 f8Q Qb7 Nf7 Bb4 Nd6 Qbg2 Nf6 Qg1 Ba1 b2 Qf5 b1Q Bb2 Qe4+ Qe7+ Qb7 Qd8 Kb8 Ra2 Ra6 Ra1 Ka7 Ra3 Rf3 Re3 Q1g2 Re7 Qg1 Rf7 Rc3 Rf8 Ne7 Qfd7 Nf5 Qf7 Rg8 h8B Q1g2 h7 Nh6 Qe6 Rg7 Qf5 Rf7 Ne5 Qg8 Ng6 Qg1 Bg7 Qg3 h8Q Ng4 Qhh5 Nh6 Bh8 Rg7 Qe2 Qh3 Ne5 Rg1 Qee4 Qhg3 Ng6 Rf1 Qee5
B1QRq3/3P1b1n/7Q/nqb1rR2/P1b1BKN1/2B1rN1k/1q2Rr2/4q1Q1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 Kd2 Kf7 a4 b5 f4 e5 g4 h5 g6+ Kf6 d6 d3 Ke3 b3 d7 b4 g7 b2 Bd2 e4 Nh3 b3 Qc1 h4 Qc7 Rh5 Rg1 Nc6 Bg2 Ba6 Qb8 Qe8 Rf1 Bc4 Ra2 Na5 Nf2 h3 Qc8 h2 Be1 h1B Nd2 b1Q Nf3 Bd6 Re2 b2 Bb4 d2 g5+ Kf7 f6 Ke6 g6 Kf5 f7 d1Q f8Q+ Nf6 g8Q Qe1 Qh6 Nh7 Qgg7 Bc5+ Qd4 Ra6 g7 Rf6 g8B Qa1 Bd5 b1Q Ng4 Qab2 Bd2 Qb5 Ba8 Q1b2 Bc3 Bf7 Bh3 Bg2 Rf2 Bf1 Bg2 Re6 Qf8 Re5 Qg7 Rh2 Qh8 Kg6 f5+ Kh5 Kf4 e3 Bh1 Rg2 f6 Rh2 Nd2 Kh4 Bhe4 Kh3 Nf3 Bc4 f7 Be6 f8R Bf7 Rd2 B1c4 Rde2 Rg2 Rf1 Rf2 Qf6 Qe6 Rd8 Qe8 Rd2 e2 Qg5 Rg2 Qg1 Rf2 Rc2 Qd1 Qg6 e1R Rd2 Re3 Re2 Qdc1 Qh6+ Bh5 Rd1 Qcb1 Rd5 Qe1 Qd6 Bf7 Qb6 Re7 Rf5 Re5 Qh6+
5b2/qn3r1b/4Qbk1/2P5/b2nR1rB/B1P2N2/1K1N1N1Q/1nnRBnR1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 dxc5 g5 a4 Nc6 axb5 Nb8 e4 h6 Bh3 h5 exf5 gxf4 g5 Bh6 Bg4 hxg4 Qd3 Bg7 Qd1 Bf8 Kd2 Kf7 Kc3 e5 h4 a5 b4 d5 h5 f3 f6 f2 h6 f1N b6 a4 b7 a3 b5 d4+ Kb3 d3 b6 a2 h7 d2 Na3 e4 Qe2 d1B Rh4 g3 Nc4 e3 Rh1 g2 Ba3 Ne7 Nf3 g1N Ncd2 Nbc6 b8Q Nd5 b7 Bf5 Qbh2 Nc3 b8B Qa5 Kb2 Nb1 Bg3 Qa7 Be1 Kg6 f7 Rg8 h8B Nd8 Bf6 Nb7 c3 Ba4 Qc4 Ne2 Rg1 Nd4 Qe6 e2 Be7+ Kg7 Bd8 Bh7 g6 Rc8 Be7 Rc7 B7h4 Kh6 g7+ Kh5 Bef2 e1B Bfg3 Bd6 f8N Rf7 Nd7 Bf8 Nde5 Bf2 Ng4 Be3 Qd6 Bg5 Be1 Bf6 Nf2 Kh6 Rg4 Kh5 Re4 Kg6 Nc4 Nbd2 Rc1 a1N Rd1 Nb1 Ncd2 Nab3 Qa6 Nc1 Qe2 Rh8 g8R+ Kf5 Rgg4 Rg8 Rg3 Rg4 Rg1 Kg6 Qa6 Rg7 Qad6 Rf7 Qe6
2rBkrr1/N2P2R1/8/PNb1q1BN/1brQ3Q/2Qn3R/R2K1nb1/6br b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Rh7 Bh3 Bh6 fxg5 Rh8 g6 Bg7 g5 Bf8 Bg4 hxg4 a4 c5 h4 b5 d4 e5 d6 c4 d5 c3 g7 e4 a5 c2 h5 e3 h6 b3 g6 b2 h7 g3 f6 g2 Nh3 g1B Qd3 b4 Nf4 e2 Nc3 b1R Rh3 b3 Kd2 b2 Nh5 Na6 Nb5 Nc5 Qd4 Qe7 Ra2 Nh6 g8N Bb7 g7 Qe5 Ne7 Ng4 g8R Nf2 Nc6 Rc8 Rg7 Rg8 h8Q Ncd3 Nca7 Ra1 Qh6 b1R Qg5 Rb4 Qgh4 Rbc4 Qc3 e1R Qcd4 Rf1 d7+ Kd8 Qc3 Bc5 Qhd4 Rb1 f7 Ke7 d8B+ Kd7 d6 Bg2 Be7 Bb4 f8Q Bc5 Qf5+ Ke8 Qfe4 Ra1 Ba3 Rae1 Bd8 c1B+ Kc2 Be3 Bc1 Bb4 Qh4 Rd1 Qd5 Bec5 Qdd4 Nh1 Bd2 Rff8 B2g5 Ra1 Kd2 Nhf2 Nf4 Bh2 Nh5 Rh1 Bde7 Bg1 Bef6 Be4 Bd8 Bg2 d7#
1bk3r1/QqB2qP1/1r2R1Nn/3NQP2/3Q1qBK/2bn4/RR4q1/n4nB1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b3 a5 b6 a4 Qe2 a3 Qf3 Bd7 Qd1 Ba4 bxa4 Qc8 Nc3 Qd7 Nb1 Qd8 f4 Kd7 Kf2 e5 d4 h5 g4 c5 b7 h3 Kg3 e3 d6 e4 f5 h4+ Kf4 e2 g5 e1Q Kg4 a2 a5 h2 a6 h3 a7 c4 d5 e3 g6 e2 g7 c3 Bh6 c2 Nf3 c1Q Be3 Qe8 Nc3 Rh6 Bg1 Qf7 Nh4 Na6 b8R Qed2 Ng6 e1B Be2 Nc5 Rb2 Kc8 Bf3 Qb1 Qe2 Nd3 Qe5 Rb8 a8Q Qdc1 Nd1 Bc3 Ne3 Rh8 Kg3 Nh6 Bg4 Rg8 Qa7 Rb6 Kh4 Qf1 Nd1 Qf4 Ne3 Qc2 Re1 a1N d7+ Kd8 Ra2 Qg2 Ree2 Bd6 Rf2 Rb7 Rfb2 Kc7 d8B+ Kc8 Bb6 Bb8 Bc7 Rb6 d6 Qb7 Bf2 Qg2 Re1 h1N Bg1 h2 Nd5 Ng3 Qa5 Kb7 d7 Nf1 d8Q h1Q+ Bh2 Nc5 Qa3 Nd3 Qa7+ Kc6 Qdf6+ Kd7 Qd4 Kc8 Re6 Qff3 Qfe5 Qf4 Nf6 Qb7 Nd5 Qg2 Bg1
2b2Q1b/1b2N1bK/2b1r3/RBq2BP1/2Rn1RP1/N1Q2qbB/4Q3/n2k1q2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 h4 c6 e4 Ra6 f4 fxe4 f5 c5 Bf4 gxf4 dxc5 Rc6 Nf3 Rg6 Ng1 Rg5 hxg5 Bb7 Nd2 Ba6 Nb1 Bc8 Ke2 Kf7 b4 h5 c4 e5 c6 d5 b6 d4 b7 f3+ Kd2 d3 Ke3 h4 c7 a4 b5 f2 b6 h3 c5 a3 c6 d2 f6 Ke6 f7 Kd5 Bg2 Kc4 Nf3 f1Q Ng1 a2 Qe2+ Kb3 Nc3 Kc2 Nb5 h2 Re1 a1B Nh3 Qd5 Ng1 Ne7 Nh3 Bg7 f8Q Na6 b8Q Nc5 b7 Rh6 Nf4 Nb3 Bh3 Re6 Ng6 Qf7 Rhg1 h1B Ref1 Qc4 Rf4 Nf5+ Kf2 Qc3 Ne7 Nfd4 Rg2 e3+ Kg3 e4 Kh4 Qc5 Na3+ Kc1 Rgf2 Qf6 Kh5 d1B Qa8 Bb2 b8R Na1 Rb5 Ba4 Ra5 Bf3 Qaa6 Bg2 Qed3 e2 Qc3+ Kd1 Qac4 e1B Rc2 e3 Qf1 Bd7 c8B e2 c7 Bac6 Ba6 Bc8 Bb5 Bh1 Qg2 Bg3 Qe4 e1Q Qee3 Ba6 c8B Qf1 Bd7 Bc8 Qe5 Rd6 Bf5 B6b7 Qe6 Bhc6 Qa2 Bh8 Qe6 Qf7+ Kh6 Bg7+ Kh7 Qf3 Qee3 Qfc4 Qb4 Qcf1 Rc4 Re6 Qf2 Ndc2 Qg2 Bbf6 Qf2 Nd4 Qc3 Bh8 Qfe3 Bfg7 Qe2+
4RN1B/BbRP1qrN/1Qn3bk/rq3b1N/P1b2Qb1/K1B2r2/7b/3R4 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 d5 c4 g6 cxd5 Nh6 f6 Ng8 f7+ Kd7 h4 Ra7 g4 Bh6 h5 Bg7 f5 Nc6 g5 Ne5 f6 Bf8 Bd3 Ra8 Bf5+ gxf5 Rh2 Ra5 Rh1 Ng6 hxg6 Ra8 d4 b5 Kd2 e5 Kc2 h5 Kb2 c5 a4 h4 g7 e4 g6 c4 d6 Ke6 d7 h3 Qf1 f4 d5+ Kf5 d6 Kg5 Ra2 b3 Qe1 b4 Rh2 e3 Qd1 c3+ Ka1 f3 Rhd2 e2 Qf1 e1R Ra3 b2+ Ka2 c2 Rc3 b3+ Ka3 h2 Nh3+ Kh6 Rd1+ Re3 Ng5 h1B Nd2 b1B Rc7 f2 Nh7 Ne7 g8Q Rf3 g7 Ra5 Bb2 c1Q Ne4 Qc6 Ng3 Bf5 Nh5 Qb5 Bc3 Qe8 d8B b2 d7 b1B Qg1 f1B Qb6 Nc6+ Be7 Bb7 Bc5 Bd6 f8B Bg4 Qc4 Rg8 f7 Bh2 Bfe7 Bfd3 f8N Bg6 Bf6 Qf7 Bcd4 Bg2 Bg1 Bf1 Qf4+ Qg5 Bfd4 Bbf5 Be5 Rh8 g8R Bc4 Rg7 Rg8 Bf6 Qd5 Re7 Qf7 Bh8 Rg7 Re8 Be4 Qa6 Bc2 Ba7 Bce4 Qf6 Qb5 Qb6 Bb1 Qfd4 Bbf5 Qf4+
1rB1r2r/1R1K2NQ/3RNB1b/3r3n/1NRP4/2rQ2br/kP5b/2B1nb2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 e4 Kd7 Ke2 Kd6 Ke3 Kc5 Kf4 Kb4 Ke5 c5 d4 a5 b6 f5 b7 h5 d6 g2 g6 f4 g7 g3 d7 f3 Ke6 h4 e5 h3 Ne2 g1B Be3 c4 Qe1+ Kb3 Nf4 g2 Nh5 a4 Qg3 f2 Bg5+ c3 Be3 h2 Qf3 c2 Nf4 c1R Qe4 a3 Nh5 a2 Nc3 Na6 b8B Nb4 Ba6 f1R Qd3 Nc2 Nf4 Nf6 g8Q Bf2 Qgh7 Ne1 Ncd5+ Rc3 Bc1 g1B Nb4 Bh6 Rb1 Bb7 d8R a1R Rd6 Nh5 Kd7 Ra5 e6 Bg3 e7 Rd5 Ne6 Rff8 e8N Rfg8 Bc7 Rb8 N8g7 Rge8 Bd8 Ba8 Bc8 Bb7 Qe3 Ba6 Bf6 Bf1 Ra1 Be2 Ra7 Bf1 Na6 Ka2 Rb7 B1f2 Rg1 h1R Qed3 Rh3 Rg2 Bg1 Rc2 Ra3 Rc5 Rc3 Rc4 B1h2 Nb4+
n4q2/r4NQ1/2B2rr1/BN1N1kP1/R1q1q2R/1qR1r3/q1BKb2P/1Q2r3 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 d5 g5 d3 g6 d4 e3 d2+ Ke2 hxg6 Nh3 g5 Ng1 g4 f4 g5 Kf2 g3+ Kf3 g4+ Kg2 d3 Nf3 Nc6 Ng1 Nd4 exd4 Bg7 Ra4 Bh6 Ra1 Bg5 fxg5 Qc7 Ra6 Qd7 Ra1 Qd8 c4 Kd7 b4 Ke6 c5 f5 c6 a5 c7 a4 b6 f4 b7 a3 b8R a2 b5 Nf6 b6 Ba6 c8B+ Nd7 b7 Rh3 Na3 Qf8 Be2 f3+ Kf1 f2 Nb1 Ra7 Qa4 d1R+ Kg2 f1R Nc3 d2 d5+ Ke5 d6 Nb6 d7 Na8 d8N e6 Rb1 a1Q Rb4 Rf4 Qc6 Qa2 Bb5 Rdf1 Nd5 d1Q+ Qc2 Rc4 Bcd7 Rc6 Ra4 Rf7 Qe2+ Kf5 Bc4 Qd4 Kf1 g2+ Ke1 g3 Nf3 g1Q+ Qf1 g2 Bd2 Qb6 Ba5 Qgd4 Bb3 g1R Rc8 Rd6 b8Q Bd3 Rc7 Qc4 Bc6 e5 Re7 e4 Qc7 e3 Re4 e2 Rh4 Qbb5 Qb7 Rg6 Nd4+ Ke5 Qd7 Rff6 Qg7 Rhg3 Bd1 Qbb3 Nb5 Rf3 Nf7+ Kf5 Bc2 Rh6 Kd2 Rhg6 Qd1 Rgf1 Rg1 Rg3 Rg2 e1Q+ Kc1 Qee4 Kd2 Be2 Qb1 Rh3 Rg3 Re1 Rd3 Re3 Rc3
2R3kb/r3Q2r/n3R3/NPrQB1Bp/K2b1q1P/R3n1nb/1q2N2Q/2N5 b - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 f5 a4 c5 axb5 Nf6 bxc5 Ng8 f4 g6 e4 Qf6 Be2 Qg5 Bg4 fxe4 f5 Qe7 f6 Qd8 Bf5 gxf5 Kd2 Kf7 Kc3 a5 Kb3 d5 h4 h5 g4 d4 c4 d3 e6+ Ke8 f7+ Ke7 g5 f4 g6 e3 g7 e2 c6 e1R c5 d2 c7 f3 c6 f2 Qc2 f1Q Ne2 d1N Bg5+ Nf6 g8Q Ra7 Ka4 Bg7 Nc1 Ne3 Ra3 Rh7 Nc3 Qd2 N3e2 Bh8 f8B+ Ke8 e7 Qf4+ Qgc4 Na6 Bg7 Ne4 Qd5 Bh3 c8N Ng3+ Bd4 Qc3 c7 Qb2 Nb6 Rd1 Rg1 Rd3 Nc4 Rc3 Qd2 Rc2 Be5 Rc3 Qb7 Kf7 Re1 Kg8 Qh1 Rc2 Qh2 Rc3 Qd4 Rc2 Nb6 Rc6 Nc4 Rc5 e8Q+ Qf8 c8R Nef1 Bef4 Nb8 Nc3 Rd5 Ra1 Rc5 Qe7 Na6 Re6 Ne3 Qe5 Ng4 Qd5 Ne3 Rc7 Qf5 Be5 Qf4 Ra2 Qc2+ Ka3 a4 Ra1 Qb1 Na5 Qbb4+ Ka2 a3 N3e2 Qbd4 Kb3 a2 Rb1 a1B Rc8+ Qf8 Ka3 Qd2 Rb3 Bd4 Ka4 Qb2 Rc7 Qf7 Ra3 Qf4 Rc8+
Q2n1q1n/Nb1Q3k/1Q3R1r/P1b1Rp1r/NPK1B2b/8/1q1NrB2/1n4R1 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b5 Nc3 a5 Na4 b4 Nc5 a4 Nb7 b3 Qxb3 Ne7 Qd1 Ng8 b4 Na6 Qc2 Nb8 Qb3 axb3 d4 f5 Kd2 Kf7 Kd3 g5 h4 Kg7 a4 c5 e4 b2 e5 b1R d6 f3 a5 g4 h6+ Kg6 d7 f2 h5+ Kh7 e6 g3 d5 g2 d6 Ra7 e7 Qb6 d8N Rb2 e8R Bd7 Nc6 Be7 Nf3 g1B Bg2 f1N Be3 Ra6 Bf2 Nd2 Na7 Nb1 Kc4 Re2 Nd2 Qd8 Be4 Bh4 Re5 Bc8 d7 Qf8 d8Q Nc6 Qb6 Nge7 Rh3 Ng6 Rg3 Nge7 Rg6 Nd8 Rc6 Ng6 Rf6 Kg8 h7+ Kg7 Kd5 c4 Nc5 c3 Na4 c2 Kd4 Bb7 Kc4 Nc3 Rf1 c1Q Re1 Kh6 Rd1 Qb2 Rf1 Kg5 h6 Nb1 Rd1 Rg8 h8Q Kh5 h7 Kh6 Bg3 Bc5 Bf2 Rg7 Qg8 Re7 h8Q+ Rh7 Qb5 Rc6 Qd5 Ra6 Qhg8 Rh8 Rg1 Rh7 Rf7 Nh8 Qg2 Rg6 Rf6 Kg7 Qb6 Rh5 Qf3 Kh7 Qfd3 Rgh6 Q3d4 Bc8 Qa8 Bb7 Qd7+
qR2N1nb/3B1K2/1Pk5/1b1rb2P/5QR1/n1nNQ1qp/1r3Q2/2NB1r1B b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 Qd7 b3 Qc6 h5 Qe6 Bb2 Qe7 Bd4 Qd8 Bf6 h6 Qc2 Bd6 Qh7 Bf8 Bd4 Bg4 Bf2 Bc8 Bh4 gxh4 Qxh6 Nd7 Qh7 Nb8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 c4 g4 f3 d4 f2 e4 a4 b6 h3 b4 c3 e5 c2 g5 c1N b5 a3 d6 a2 g6 Bb7 g7 f6 Kg6 f5 d5 f4 e6+ Kc8 e7 Kd7 e8B+ Kc8 Nf3 Bc6 d7+ Kb7 d6 Nf6 g8B Ra5 Ne1 f3 Nc3 Bd5 Bg2 f1R Rb1 a1B Rg1 f2 Bh1 Bg2 Kf7 Qc8 d8Q Qc6 d7 Ne2 Qd3 Bg7 Na2 Na6 Qe3 Nc7 Nd3 Be5 Nac1 Nc3 Rb4 Bf3 Rgg4 Be2 Qe7 Ra2 Qf8 Rb2 d8Q Rh6 Qdd4 Bh8 Qdf4 Rg6 Bd7 Rg5 Bh7 Ng8 Bhf5 Qg2 Bfe6 Qe4 Bb3 Qc6 Bd1 Qf3 Rg2 Qg3 Rg1+ N7d5 Qfc5 Nb1 Rg2 Na3 Qf8 Qf3 Rg4 Nc3 Qfc5 Beg7 Qcd4 Rd5 Rb3 Be5 Rb4 Kb8 b7 Kc7 b8N Qg3 Na6+ Kb7 Ne1 Bd3 Nc7 Bc4 Ne8 Be2 b6 Bd3 Ra4 Bb5 Bc8+ Kc6 Ned3 Re1 Ra7 f1Q Rb7 Qfg2 Rb8 Rf1 Qef2 Qe4 Qde3 Qa4 Be6 Qa8 Bd7+
B3NNQ1/bR1P2R1/r1r2QRB/1br1b1p1/2qn3k/8/Pq4qB/3KNn2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 h4 Kf7 f4 Kf6 h6 e5 d6 b5 h7 b3 d7 d3 h5 e4 h6 d2+ Ke2 b2 Qb3 d1R Na3 b1Q Bh3 b4 Qd5 e3 Bg4 b3 Bh3 b2 Nb5 Qc7 Nd6 Nc6 Nf3 Nge7 Rg1 Qe4 Qg8 b1Q Bg2 Rd5 Ne1 Rc5 Kd1 Qb2 Rb1 Nd5 Bd2 Nd4 Ne8+ Ke7 Bf3 Ba6 Rg6 Bb5 Bc1 Ra6 f6+ Kd8 f7 Ke7 Bh1 Qeg2 f5 Qf4 f6+ Ke6 Ra1 Kf5 Rb1 Bd6 f8R Be5 Rf7 Qff1 Re7 Qc4 f7 Kf4 f8N Rcc6 Rd6 Kg3 Rf6 g6 Rg7 g5 Rfg6 Kg4 Bd2 Kh5 Bb4 Kh4 Bd6 Bf6 Bh2 Be5 Qe6 Rg8 h8Q Rc5 h7 Rcc6 Nc2 Rc5 Qf6 e2+ Kd2 e1B+ Kd1 Bf2 Ne1 Qg4+ Bf3 Qg2 Be4 Nb4 Ba8 Nd5 Ne6 Rf8 Qg8 Be3 h8B Rcc6 N8c7 Rc8 Ne8 Rc5 Nf8 R8c6 Re7 Bg1 Bg7 Bf2 Bh6 Be3 Nc2 Bg1 Reg7 Ne3+ Ke1 Nf1 Kd1 Bf2 Ne1 Bfg3 Rc1 Bb8 Rc3 Ba7 Rb3 Be5 Nc2 Ba4 Rb7 Bb5 Ne1
R1Q4r/1q1p3B/Qb4b1/1k2B2b/N4R1P/2rr2P1/QB1q1Nn1/nR3K1n b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 exf5 g5 Qd3 g4 Qd1 g3 Bg5 h5 Bc1 h4 fxg3 h3 Ra2 hxg2 Ra3 Kf7 Ra1 Ke8 b4 e5 c4 a5 h4 e4 b6 e3 b5 d3 b7 d2+ Ke2 a4 f6 a3 b6 a2 f7+ Ke7 c5 Nh6 c6 Kd6 c7 Kc5 Rh2 Na6 b8B Kb5 b7 Nc5 Ba7 Nf5 b8R+ Bb7 c8Q Ne4 Qc3 Qb6 Qcc2 Nf2 Nh3 g1R Bb2 Nh1 Rf2 Be4 Rf4 Qb7 Nf2 Bc5 f8Q Bb6 Qfc8 Rg2 Qdc1 d1B+ Ke1+ e2 Qe3 Rh2 Qd4 Ne3 Nc3+ Ka5 Qcd2 Bg6 Rb1 a1N Na4+ Kb5 Bh3 Rg2 Be6 Rh2 Bg8 Rg2 Bh7 Rh2 Qf8 Rg2 Re8 Rc8 Bb8 Rc3 Be5 Rh2 Ra8 Rg2 Ng4 Rf2 Qc8 Rf3 Nf2 Rd3 Qd6 Rc3 Qdb8 Rd3 Qdc2 Rc3 Qa7 Ng2+ Kd2 e1Q+ Kc1 Qee4 Kd2 Qb4 Qb3 Rfe3 Qf7 Bdh5 Qa2 Rf3 Ke2 Rfd3+ Kf1 Qd4 Ne4 Qe3 Nf2 Qd2 Qa6+
n4Rrb/1k1b1K1n/br1P2P1/7n/Q2Bp1Q1/2q1B3/2Rb2rN/2QRN1N1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Ke2 Kd7 Kd3 e5 Ke4 a5 h4 c5 b4 Kc7 d4 g3 d6+ Kb7 Kd5 e4 b6 g2 d7 a4 Ke6 c4 f6 c3 f7 a3 b5 f3 d5 a2 g6 c2 h5 f2 d6 f1B h6 Ra7 h7 Bh6 f8R Bd2 Na3 Bf4 Qg4 Bd2 Kf7 Bg5 Rh2 Na6 Be3 c1N Nc2 Ne2 Rd1 Nf6 Ne1 Rg8 h8B a1B Bg7 Nh7 Bgd4 Kb8 b7 Qa5 d8Q Nf4 Qb6 Qc3 Qa5 Nc7 Qa2 Ra6 Qd2 Rb6 Qc1 Ka7 b8N Bh6 Nc6+ Kb7 Ne5 Bd7 N5f3 Bd3 Ng5 Na8 N5f3 Rc6 b6 Ba6 Nh3 g1R Rc2 Rg2 Nhg1 Nh5 Nh2 Rc4 Qb1 Rb4 Qc1 Kc6 b7 Rb6 b8Q Bf4 Bf2 Bd2 Qe8 Kb7 Bfe3 Qa3 Bc5 Bh8 Bcd4 Qd3 Qg5 Qc3 Qg4 Bf5 Qb5 Bd7 Qa4
R7/n1rP2K1/3b3R/1B2B3/nN1qQ1kn/5R1q/n3PprB/1QNbQn2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 h4+ Kg4 d4 f5 h6 g5 b6 c4 h7 f3 b7 f2 h5 f4 d6 b3 d5 c3 d7 b2 h6 c2 d6 f3 Na3 b1Q Bg2 f1N Nh3 f2 Qe1 Ra7 Bf4 c1N Nc2 Ne7 Kf6 Nbc6 b8Q Qb3 Nb4 Rc7 Bh2 Rg8 h8R Na7 h7 Na2 Nf4 Qh3 Nfd3 Nd5+ Kf7 Ndc3 Nc1 Bb7 Bc6 Na4 Bb5 Be4 Qa8 Bc2 Qe4+ Kh5 Rb1 g4 Rb3 g3 Rf3 Bd1 Qb1 Rg6 Rg8 g2 h8B g1N B8e5 Qdh4 Qe4 Be7 d8Q Rg2 d7 Bd6 Qb8 Q4g4 Qbb7 Kh4 Qb1 Qd4 Ra8 Kg5 Kg7 Kg4 Rc3 Nf3 Q7e4+ Kg5 Rb3 Nh4 Rf3 Qg3 Qbc2 Ng6 Qb1 Qh4 Bf4+ Kg4 Rhh3 Qg3 Rhh8 Qh3 Rh6 Nh4 Bh2+
Qrqb3R/3N2KB/2B2NQ1/8/3Qb3/3qk1P1/P1Bpqq1N/Rn3rnr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g6 dxc5 g5 hxg5 b3 c4 b2 Na3 bxc1Q Rb1 Nf6 Rb3 Qa1 Rc3 Ng8 Ke2 Kf7 Kf3 e5 Ke4 b5 f4 h5 g3 b4 g6+ Kf6 g7 b3 c6 b2 c5 b1Q+ Rc2 h4 c7 h3 c6 h2 Qd4 Be7 Nb5 Bb7 c8Q Qab2 Bd3 d6 Rf2 Nd7 Nc3 Rb8 Rf1 Qf2 Bc2 Qf8 Rd1 Bd8 Nf3 Ne7 g8B Nd5 c7 Qe8 Bh7 Rf8 Rde1 Qb5 Ra1 Bc6 Rhd1 h1R Nh2 Qa6 Qb7 Qg6 Qb1 Qc8 Na4 Bb7 Nb6 Rf7 Rd3 Bc6 Ra3 Rf8 Ra8 Nc3+ Kd3 Be4+ Kc4 Ke7 f6+ Ke6 Nd5 Kf5 Qbb6 Nb1 f7 Rg8 Nf6 d5+ Kb3 Rh8 f8Q Rf1 Qa3 Qe2 Kb4 Qf2 Kb5 Qe2+ Kc6 Qf2 Kd6 Qe2 Qde3 d4 Qba6 d3 Qd4 d2 Qab6 Qca6 c8B Qac4 Bb7 Qc8 Bc6 Qf2 Bg8 Rh6 Bh7 Rh5 Nf3 Rhh1 Qaa4 Bd3 Qaa6 e4 Nh2 e3 Qab7 e2 Q7a7 Bc7+ Ke7 Ne5 Qaa5 Bd8+ Kf8 e1Q Qaa7 Rb7 Rb8 Qee2 Qa8 Nf3 Qba6 Ke6 Qab6 Qge4 Kg8 Qd5 f5+ Kd6+ Kh8 Be4 Qba6 Rb2 Kg7 Ng1 Qad3 Bg2 Q3e4 Rb4 Qg4 Be4 Qg6 Rb5 Rb7 Rb3 Rf7 Rb2 Rf8 Rb8 Rh8 Qc4 Qb2 Kc5 Qb4+ Kd4 Qb2+ Ke3 Qd4+ Ke2 Qb2 Qdc5 Nfg4 Q5b4 f6 Qbb5 f7 Qh5 f8N Qd3 Nf6 Ke3 N8d7 Qhe2 Qd4+
q1n1R3/Bnr1n3/2rQ4/5nN1/qb4Pq/NkN3P1/2BQ2pR/2R2QKb b - - 0 1 legal: proof: e4 h5 g3 a5 Bb5 h4 Bf1 b5 Nh3 d5 Be2 d4 Rg1 Bb7 Rf1 Ra6 Rg1 Rd6 Rh1 Rd5 exd5 Bc8 Bc4 Nc6 Ke2 Rh5 Re1 Bg4+ Kf1 Rh6 Re3 Bf3 Ke1 Rh8 Be2 Nb8 c4 dxc3 a4 g5 axb5 g4 Rd3 Bh1 f3 Nf6 Ng1 h3 Na3 Ng8 Nc2 Rh5 Ne3 Rh4 fxg4 Rh5 Ng2 hxg2 h4 Rh8 Kf2 Kd7 b4 Kd6 h5 f5 b6 e5 b7 c5 b5 e4 h6 a4 b6 c4 h7 Kc5 d6 Kb4 d7 e3+ Ke1 a3 Rd4 a2 Bd3 c2 Ne2 f4 Nc3 f3 Re4 e2 Kf2 e1N Kg1 Nc6 b8N Nge7 b7 Kb3 Na6 Qa8 d8Q Nc8 b8Q+ Bb4 Nc7 N6e7 N7b5 Rf8 h8R Rf6 Rh4 Rc6 Qbd6 Rc7 Na3 f2+ Kh2 f1N+ Kg1 Ne3 Rh2 N3f5 Bb2 Rc6 Rc1 a1Q Qf8 Nd4 Qf1 Ndf5 Re3 Qa2 Be4 Qa4 d4 Nd3 d5 Nc5 Qd2 Nb7 Bd3 Ng6 Re8 Nge7 Qe5 Qa1 d6 Rc7 d7 Qa2 Rb1 c1Q d8N Qd1 Nf7 Rc6 Ne2 c3 Rc1 c2 Bd4 Qa8 Be3 Qb2 Qf4 Qf6 Nc3 Qh4 Ng5 Rc7 Ba7 Rc6 Ra1 c1R Qd6 Rc2 Rc1 Rc7 Nce4 R2c6 Bb1 Qc2 Nc3 Qe4 Bd3 Qc4 Bb1 Qb5 Be4 Qa4 Bc2+
1rn1N2B/bb2q1b1/k2P1Q2/B2n3P/QN6/Rq1p1R2/rRB3N1/1Kb4r b - - 0 1 legal: proof: e4 f5 exf5 b5 a4 Ba6 axb5 Bb7 g4 Bc8 c4 d5 d4 dxc4 Qd3 h5 gxh5 cxd3 Kd2 Kd7 b4 c5 f4 Kc7 h4 Kb6 f6 a5 f7 e5 f5 g5 d5 c4 h6 e4 d6 a4 h5 g4 h7 g3 f6 g2 Na3 Qd7 Nh3 g1Q Nf4 Nc6 Ng2 Be7 f8Q Ka7 b6+ Ka6 b5+ Ka5 f7 Qe8 b7 Qb6 b8Q Bh4 Be2 Nf6 Bd1 Ne7 Rh2 Nfd5 Bc2 Bf2 Qa7+ Ba6 Bb2 c3+ Kc1 e3 Kb1 e2 Ra2 Qbb8 b6 Nc8 b7 Qe7 Nb5 a3 Nc7 e1R+ Bc1 Bd4 Ne8 Rh1 Ra1 Rg8 h8B Bg1 Bd2 a2+ Kc1 Kb5 Qg7 Ka5 f8R Kb5 Rf3 Rf8 Bb3 c2 Ba5 Rg8 Qf6 Rf8 Rb1 a1B Rb2 Rg8 Ra2 Bc3 Ra3 Be5 Qe6 Bg7 Qf6 Bb6+ Kb2 c1B+ Kb1 Bg1 Qad4 Bf2 Qe4 Ba7 Bc2 Qbc7 b8N Qc4 Qfg6 Bb7 Nc6 Ka6 Qf6 Qc3 Qa4 Qc4 Rh4 Qb5+ Rb4 Qb6 Rb2 Qb3 Qff4 Rf8 Qh6 Rb8 Qg5 Rf6 Qh6 Re6 Qhf4 Re2 Qf6 Qb5 Rb4 Rh4 Bd1 Ra2 Rb2 Rh1 Bc2 Qb3 Nb4+
B1q1BK1N/3kPn2/5Q1N/4r2b/1Qq1nq2/1n1Pq1p1/1QrbB1NR/4R3 b - - 0 1 illegal: No possible last move
KR4qn/1nB1p3/4k3/1B2rbQ1/bNNQ3r/2PqRb2/PN6/r3B1Qr b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 fxg5 a5 exf5 Nc6 h4 Ne5 d4 cxd4 b4 axb4 g6 Ra6 g5 Ra5 h5 Ra8 h6 Bg7 hxg7 Nc6 Bg2 Nb8 Bh3 Na6 Bf1 Nb8 Ke2 d5 Kf3 Kd7 c3 h5 f6 b5 f7 d3 f8B b3 Na3 b4 Nh3 d2 Bb5+ Nc6 Rb1 d4 Ke4 d3 Kd5 b2 Nf4 b3 Nc4 h4 Re1 h3 Re3 Nh6 g8N h2 g7 h1R g6 Ra5 Qg1 d1B Bd2 Bh5 Be1 d2 Nd3 d1B Qg5 Nf7 Nf6+ Kc7+ Kc5 Bhf3 g8Q Bf5 g7 R8h4 Nd5+ Kd7 N5b4 Nh8 Qg4 Qe8 Kb6 Qf7 Kb7 Qd5 Rc1 b1Q Ndb2 Qbd3 Qd4 Bc2 Rb1 Bcd1 Ba6 Nd8+ Ka7 Nb7 Ka8 Qd6 Qgd5 Rb5 Q5e5 Qd5 g8Q Ra5 Qg5 Bc2 Qdg4 Qg8 Qg1 Rd5 Qe4 Re5 Bb5+ Ke6 Qd4 Qh7 Nd1 b2 Bh6 Ba4 Bg7 Ree4 Be5 Qg8+ Bb8 Re5 Qdg4 Qg6 Bc7 Qh7 Qd4 Qf7 Rc1 b1R Ndb2 Ra1 Rc2 Qg6 Rh2 Rf4 Rh7 Rfh4 Rg7 Qh7 Rg8 Qg7 Rc8 Qg8 Rb8
3kqQ1N/3PrR1b/2p4b/1qrQq1BN/1n1B1nBP/4q3/4Nn2/K5RR b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 h4 e5 d4 g5 Kd2 c6 Kc2 g3 Kb2 g2 f4 b3 d6 g4 b6 e4 d5 g3 d7+ Ke7 b7 e3 Nc3 e2 Ne4 e1Q Ne2 g1Q Nf6 g2 Nh5 Qe8 d8N Qe3 Nf7 g1N Bh3 Rh7 Nh8 Nh6 f6+ Kd8 f7 Ra5 f5 Na6 b8B Ng4 f6 Bf5 d6 Rc5 d7 Bh6 f8R Re7 f7 Bh7 Qd5 Nf2 Ba7 Nb4 Bg4 Ngh3 Rb1 Nf4 Ka1 Rc4 Bd4 Rc5 Rg8 Qe5 f8Q Qd2 Rg7 Qde3 Bd2 Nbd3 Rbg1 b2+ Ka2 b1Q+ Ka3 Qb7 Ka2 Qb5 Rf7 Nb4+ Ka1 Q5e4 Bf6 Qe6 Bg5 Qf6+ Bc3 Qfe5 Bd4
3K2N1/r1Pn2qR/r1bBrQQq/p7/2kbn3/1bB2RPR/2N1N3/2Q1r3 b - - 0 1 legal: proof: d4 b5 f4 f5 a4 g5 axb5 c5 fxg5 cxd4 e4 h5 exf5 h4 g3 h3 Bg2 hxg2 Kf2 Kf7 Kf3 e5 Kg4 d5 h4 a5 b4 d3 c4 e4 c5 d2 g6+ Ke7 Kg5 e3 h5 d4 b6 d3 b5 e2 g7 e1Q b7 Kd7+ f6 Ke6 c6 Kd5 h6 Kc5 b6 Qf1 h7 Qd6 f7 Kd4 Ne2+ Kd5 Bb2 g1R Rh3 Bd7 Ra3 Kc4 Bc3 Ra6 Qc1 Nf6 g8N Bg7 f8Q d1R Qf7+ Qe6 Qg6 d2 Rb3 Re1 Na3+ Kc5 Nc2 d1B Ra3 Kc4 Rb3 Be8 Ra3 Nbd7 b8R Qf2 b7 Qa7 Rd8 Qd6 b8B Ne4+ Kf5 Qf8+ Ke6 Bd4 Bd6 Qh6 Ke7 Rgf1 Ra8 Rf6 Kd8 Re6 Rb8 Qb7 c7 Qb2 Rb5 Qa1 Rbh5 Qb2 Nb4 Bb3 Nc2 Ra7 Ne7 Rf8 h8Q Rff6 Ng8 Qa1 Bdb4 Rea6 Bd6 Re6 Qe5 Nb8 Qh8 Bc6 Qhf6 Nd7 R5h4 Qg7 Rh7 Qa2 Nb4 Qd2 Nc2 Qdh6 Bb2 Bba4 Rf3 Bb3 Bc3
2Kn2k1/1r2B1n1/2pq2Q1/B2P2R1/1n2Nb2/1Qn1QRn1/3rP3/1nNRNb2 b - - 0 1 legal: proof: f4 e5 g4 b5 c4 f5 a4 d5 axb5 h6 cxd5 h5 Bh3 exf4 gxf5 Ke7 Bg4 hxg4 Qc2 Kd7 Qd1 Ke8 Kf2 Kf7 b4 g5 h4 a5 d4 g3+ Kf3 a4 Ke4 f3 Ke5 g2 f6 c6 h5 f2 d6 f1N d5 a3 h6 g4 b6 a2 h7 g3 d7 Ra5 b7 Rb5 Nc3 Na6 b8N Bh6 Kd6 Nc7 Qc2 Ne7 Ne4 Rb7 b5 Ne6 Nf3 g1N b6 g2 Rh5 Ng3 Ne1 Nf3 Rg5 g1N Ba3 Nfd4 Rd1 a1N Na6 Ngf3 Nac5 Nd2 Nb3 Nb1 Nc1 Kf8 Qc3 Nac2 f7 Nb4 Qe3 Rg8 h8Q Nef5+ Ke5 Qe7 d8B Nb5 Qh7 N5c3 Qg6 Nfg7 Bc7 Qf6+ Kd6 Rh8 Bd8 Rh7 Bc7 Ra7 b7 Nd8+ Kc5 Qe5 Kb6 Bh3 b8Q Bf1 Qb7 Qd6 Qb8 Ke7 f8R Ra4 Rf3 Ra8 Rh5 Bf4 Rg5 Kf8 Qb7 Rb8 Ka7 Rh4 Ba5 Kg8 Qbb6 Rb7+ Ka8 Rc7 Kb8 Rb7+ Kc8 Be5 Nc5 Rd4 Ne4 Bf4 Qb5 Rd2 Qc4 Nd3 Bc5 Nb4 Qb3 Qe5 Bf8 Qd6 Be7
2n1Bn1N/P1qNQ2p/n5b1/1B1rRrnP/1nn1B2Q/1R4K1/6b1/R1N3k1 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 a5 f4 Bd6 e6 Bf8 b4 axb4 cxb5 Ra7 Qd4 Ra5 Qd1 Ra8 e4 g5 e5 Bc5 f5 Kf8 Bf4 gxf4 f6 Be7 fxe7+ Kg7 Ke2 Kh6 Ke1 Kg6 Kf2 Kg5 e8N Kh4 g4 c5 a4 f5 g5 d5 b6 b3 h3 c4 e7 b2 g6 d4 a5 d3 a6 d2 a7 f3 b7 c3 e6 f4 g7 c2 Nd6 c1N e8Q Nd7 b8R Ne7 g8B Nb3 Qg6 Nbc5 Nc4 Nf8 Ne2 Qc7 Nbc3 b1N Ne5 Na6 Nc1 Na3 Qe1 d1N+ Kg1+ f2+ Kg2 f3+ Kh2 Nb2 Qf7 Nbc4 Qg6 Nc2 Ne4 Ncb4 Nf6 Bb7 Ra5 Nc8 e7 Be4 Qe8 Bg6 Bd5 Rg8 Qf7 Rg7 Qe6 Rf7 Nd7 Rf5 Rbb5 Rb8 e8B Rb6 Bd3 Rd6 B5e4 Rd4 Rg1 Rd5 Rg3 f1B Nf7 f2 Ra1 Bg2 Nh8 Ne5 Qd6 Nf7 Qe7+ Ng5 Qh1 Nc6 Rb3 Ncb4 Bb5 f1N+ Kg1 Rd4 Rge3 Nd2 Re2 Rd6 Kh2 Nc4 Qe1+ Kh5 h4 Kg4 h5 Rdd5+ Kg1 Kf4 Kf2 Kg4+ Bf3+ Kh3 Re5 Kh2 Qe4 Kh1 Kg3 Kg1 Qh4 Qc6 Be4 Qd6 Bc6 Qc7 Bb5
NBQbQ2R/2Q1qk2/3nnPb1/5B2/K4P2/n1Rp1B2/4nN2/q2N1nrb b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 axb5 cxd4 Bb2 a4 Bc1 Ra5 bxa5 Bh6 Ba3 Bg7 Bc1 Bf8 Kd2 h5 c4 d5 Kc2 e5 f4 a3 Kb3 h3 g4 h2 f6 e4 b6 h4 c5 e3 c6 e2 a6 e1N a7 h3 a8B d3 c7 a2 g5 d2 g6 d4 b7 d3 g7 Bf5 c8Q Kf7 Bb2 Nh6 g8N Bg6 Ba3 Na6 b8Q Nf5 Qbc7+ Be7 Nc3 Nc2 Qh5 d1N Bf3 Nd6 Rc1 a1Q Ka4 Nde3 Nd1 Qd7+ Qb5 Bd8 Ne7 Rg8 Nd5 Qe7 Nb6 Rg7 B1g2 Nf1 Na8 Rg8 Be4 Rg7 Bgf3 Nc5+ Ka5 Ne6 Bf5 Rg8 Qa4 Rg7 Bb4 Na3 Rc3 Rg8 Bc5 Rg7 Ba7 Rg8 Bb8 Rg7 Ne2 Rg8 Ng3 Rg7 Rg1 h1N Ne4 h2 Nef2 Nhg3 Rh1 Ne2 Qad7 Rg8 Ka4 Rg7 Rg1 h1B Rg3 Bh5 Rh3 Rg1 Qb5 Bg6 Rh8 Rg4 Qbc6 Rg1 Qe8+
N1q1QB2/B1r1n1P1/k4N2/1r1pNP2/q1R2nQ1/4R1n1/rB2bK1R/3r2r1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 f5 exf5 cxd4 Ke2 g4 Kd2 Ba6 Ke1 Bc8 h4 Qb6 f4 Qd8 Be2 Bb7 Bf3 gxf3 g4 Bc6 g5 Bh6 g6 Bg5 hxg5 Bb7 Ra2 Ba6 Ra1 Bc8 c4 d5 b4 Kd7 c5 Kc7 c6 Kb6 g7 a5 g6 h5 c7 e5 f6 e4 f5 e3 f7 a4 f8N e2 Nh3 h4 Bb2 a3 Nh7 a2 Ng1 d3 Na3 d2+ Kf2 e1R Nf6 h3 Rh2 Ba6 c8R Re7 Rc4 Nc6 Rb1 Kb7 b6 a1Q Nb5 Qa4 Nc7 Qc8 b5 Nd8 Rbc1 Rh6 R1c3 Ne6 Re3 Nf4 Qe2 Ra7 Na8 Rc7 Qd1 Ne7 g8Q Rh4 g7 Rh8 Qe2 d1R Qe8 Rf8 Qf1 Rh8 Qg2 Rh6 Qg4 Rh8 Kg3 f2 Nf3 f1R Ne5 Rg1+ Kf2 Kb8 Rg2 h2 b7 h1N+ Kf3 Ng3 Rh2 Rh6 Kf2 Rc5 Nb6 Kc7 b8B+ Kb7 Bd6 Rc7 Na8 Rh4 b6 Rh6 Rd4 Be2 Rc4 Ka6 b7 Rh8 b8B Rab7 Ba7 Rb5 Rg2 Rhh1 Bb4 Ra1 Bd6 Ra2 Rh2 Rd1 Bb4 Rhg1 Bd6 Ng8 Bf8 Ne7 Qf7 Qb3 Qfg6 Qa4 Qe8
8/R5pN/P3B2Q/3qQ1bR/1n1rRP2/b2b1bN1/1b2rBkq/1rQK3B b - - 0 1 illegal: No possible last move
4Bn2/3n1n2/2Q3r1/2R2P1R/3rN2Q/rr3BNq/p1q3PR/kQbqN2K b - - 0 1 illegal: No possible last move
N2qr1rn/4qRP1/2BQPB2/1nRrn1q1/1R4b1/1q6/N2NBK1p/1Q5k b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qc2 a4 Qd1 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Qe7 Na3 Qd7 Nb1 Qd8 e4 Ke7 d4 Kf6 g4 Kg5 e5 h5 d6 c5 a6 f5 a7 a3 d5 a2 b6 c4 b7 c3 d7 h3 d6 Kh4 g5 Kg3 g6 h2 g7 h4 Na3 c2 Qd2 f3 Nc4 f4 Qc3 h3 Qd4 f2+ Ke2 f3+ Ke3 Nh6 Nb6 Re8 Bb5 Kg2 Qd1 f1Q Bb2 f2 Rc1 a1N Nf3 Qe1+ Be2 f1R Nd2 Nc6 b8R Rf5 Rf1 h1Q Rf4 Rg5 Rf7 h2 Rb7 Rb8 Na8 Nb3 Rb4 Nbd4 Ba1 Nb5 Bc3 Qe7 d8N Bg4 d7 Qh4 e6 Rd5 Bf6 Ne5 Nc6 Q1e1 d8Q Kh1 Qd6 Rbc8 Ra1 c1Q Ra5 Rb8 Qb3 Qed1 Qb1 Qg5+ Kf2 Qcc2 Qa2 Qb3 Qb1 Nc3 Rc5 Nb5 Rd4 Rg8 Nb4 Rbf8 Na2 Re8 Rf8 Nhf7 Rb4 Nh8 Rf7 Nc6 Nc7 Ne5 a8B Na7 Bc6 Nb5 Nf1 Qdd3 Na8 Qdd2 Ra4 Qa5 Rb4 Qad8 Nd2+
3R1B2/qPN1P2p/b2N3q/3RKN1n/1r1Q1n2/BQq4k/3b1nbQ/R2b4 b - - 0 1 legal: proof: c4 a5 g4 g5 f4 gxf4 h4 e5 a4 b5 axb5 d5 cxd5 Kd7 g5 Ke8 Bg2 Ra6 h5 e4 Bf3 Rg6 hxg6 exf3 Kf2 Ke7 d4 f5 e4 c5 b4 a4 g7 c4 g6 Kf6 d6 Kg5 b6 Kg4 d7 c3 b5 c2 e5 a3 d5 a2 d6 Qf6 d8Q Nc6 e6 Ne5 b7 Nh6 b8B Ba6 d7 Bb4 g8N Bd2 g7 Ng6 b6 Qc3 Ba3 c1Q Nh3 Be2 Qc2 Bd1 Ne7 Kh4 g8Q Ng4+ Kf1 f2 Kg2 f1N b7 Ng3 Bbd6 Nf2 Qb3 Nh5 Ng5+ Kg4 Kh2 f3 Nf7 f4 Bdb4 Kh4 Nf5+ Kg4 Qg7 Re8 N7d6 Rg8 Qdf6 Ra8 d8R Ra4 Bc5 Rb4 Qd4 Qe3 e7 Qcc3 Re1 Qe6 Re5 Qf6 Bb2 Qg5 Na3 Qh6 Rc1 a1Q Nab5 Qa2 Nc7 Qa5 Ra1 Qa7 Kg1 Kh3 Rd5 Ng4 Kh1 f2 Qg8 f1B Kg1 Ne3 Kf2 f3 Qgg7 Ngf4 Qg1 Rb5 Bca3 Rb4 Qc5 Ba6 Qb6 Qd3 Bg7 Qc3 Qd4 Ne2 Bf8 Ng4+ Kf1 f2 Ne3 Kh4 Kg2 f1B+ Kf3 Kh3 Ke4 Nef4 Nef5 Nf2+ Ke5 Bg2 Qh2+
rB5n/1BRBk3/PnN4p/QK4br/R3r1bn/3R3P/Qb1N4/Qnn5 b - - 0 1 legal: proof: f4 a5 b4 axb4 d4 f5 g4 e5 dxe5 Ne7 gxf5 Ra3 e4 Nbc6 e6 Ra5 c3 Nb8 f6 Ra8 f5 bxc3 e5 Ng8 Qd4 Qe7 Qd1 Qf7 exf7+ Kd8 Ke2 b5 Kd3 c5 a4 g5 e6 d5 h3 g4 a5 b4 a6 d4 Kc4 d3 Bg2 d2 Bf1 g3 Qe2 d1R Qa2 b3 Kb5 b2 Bg2 c4 Nd2 b1N Bb7 c2 Ngf3 c3 Nd4 g2 e7+ Kd7 Bb2 g1N Nc6 Bh6 f8Q c1B f7 c2 f6 Nf3 Qg7 Re1 f8R Re4 f7 Bg5 Rd1 Nh4 Be5 Bb2 Qa5 c1N e8B+ Ke6 Ra4 Nd7 Bb8 Nh6 Qg8 Nb6 Bd7+ Kf6 Re8 Nf3 f8Q+ Nf7 Re7 Nh4 Be8 Bg4 Rc7 Ke6 Qa3 Kf6 Nb4 Ke6 Bd7+ Ke7 Qa2 h6 Qg7 Rf8 Qc3 Nh8 Qd4 Ba3 Qda1 Bb2 Nc4 Rf5+ Rd5 Be3 Nd2 Rh5 Nc6+ Kf7 Nb4 Bg5 Rd3+ Ke7 Nc6+
Q2R4/4K1bp/8/b1Q1nB1N/1P1b1P1B/N6R/b2r2rB/Nbkqbr1Q b - - 0 1 legal: proof: c4 d5 cxd5 f5 e4 b5 a3 b4 axb4 fxe4 h4 a5 b3 g5 Nf3 gxh4 Ng1 a4 Nf3 a3 Ng1 Nd7 Rh3 Nc5 Rh1 Na4 bxa4 Bb7 Ra2 Ba6 Ra1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 Ke5 g4 Kf4 d4+ e3 g5 e5 f3 e4 d6 a2 Kd5 h3 a5 h2 g6 c4 g7 c3 d7 c2 Ke6 Nf6 g8N Bg7 a6 Ng4 d5 Ne5 Nf6 Rg8 d6 Ra7 Bb2 c1R Bd3 e2 Na3 Ke3 Nh5 e1B Ne2 Bf2 Nd4 Bb7 Rb1 a1B Nb3 Bh4 Qc2 Rf1 Rd1 Ra8 a7 Bd5+ Kf5 Rc8 a8Q Rc3 Qb1 Rc2 f4 Rd2 Bd4+ Kf3 Bf2 e3 Bg1 Bd4 Na1 e2 Qa7 e1B Qc5 Be4+ Ke6 Bg6 Be4+ Ke2 Bf5 Bhf6 Qcc2 Bb6 Qc5 Ba5 Qbc1 Ng4 Qb1 Bd4 Qbc1 Ne5 Qb1 Qg5 d8Q Qg4 d7 Bf7+ Ke7 Ba2 Qa8 Qf3 Rc1 Qb3 Rc3 Qd1 Qc1 Bb1 d8B Ba2 Rh3 Bb1 Bf2 Ba2 Rg1 h1B Bg3 Be4 Bh2 Beb1 Rg6 Bh6 Rd6 Rg2 Ke8 Bg7 Bh4 Qb3 Rd8 Qd5 Q1c3 Kd1 Ke7 Qb3 Qe3 Qa4 Qcd5 Kc1 Qg1 Qc2 Qh1 Qd1 Qc5+
1B5r/1Q4rP/N6n/r2P1p2/1Knbn1r1/R3QnbN/B4n2/kBRN3R b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 g4 b5 axb5 exf4 h3 h5 Qb3 g5 Qa4 Qf6 Qd1 Qg6 Ra5 h4 Ra1 Qh5 gxh5 g4 Qc2 g3 Qd1 Bg4 hxg4 Bd6 Ra4 Bb4 Ra1 Bf8 b4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 f5 b6 a5 e3 c5 b5 a4 h6 a3 h7 g2 b7 a2 b6 h3 g5 f3 g6 f2 g7 h2 Qb3 Nd7 b8N Ra5 b7 Nh6 g8R Ne5 Na6 Bd6 Be2 f1N b8Q Ng3 Qf8 Ne4+ Kc2 Nf3 Bd2 Bg3 Nh3 g1R Qe8 Rg2 Qb6 c3 Kb3 c2 Bd3 c4+ Kb4 c1N Bc2 c3 Qb7+ Kd6 Bd3 c2 Nc3 Nb3 Rac1 a1B Nd1 Rg1 Bc3 Nbd2 d5 Rg2 Bd4 Rg1 Ba7 Bd4 Bc4 Rg2 Ba2 Nc4 Rg7 Rg1 Rc7 Rg2 Bb8 Rg1 Ra1 c1R Bb1 Rc2 Ra3 Rcg2 Ba2 Bf4 Bb1 Rg7 Ba2 R1g4 Bb1 Nc5 e4 Bg3 Ba2 Ne6 Qe7+ Ke5 Qg5 Nc5 Qe3 Nb3 Bb1 Nbd2 Rc6+ Nd6 Rc1 Nc4 Rg1 h1N Ba2 Nf2 Rh1 Kf6 e5+ Kg6 e6 Kf6 e7 Nde4 Nc7 Ke5 e8B Ba7 Qe1 Kd4 Ba4 Bb6 B4b3 Kd3 Qg1 Bd4 Na6 Kd2 Ra1 Kd3 Bc2+ Kd2 Bcb1 Kc1 Nc3+ Kb2 Qe1 Bh2 Qe3 Bhe5 Bd3 Bh2 Rac1 Bg3 Bdb1 Ka1 Nd1
3NbnB1/1NP1n1r1/r2n4/N1r5/PpQ1r3/1R4B1/1QbQn1b1/K2R1R1k b - - 0 1 illegal: No possible last move, all moves rejected
2rQB3/r6q/4q2k/1K1br1pP/N1R1nNrr/QR2r3/1B1P2rQ/4NR2 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 h4 exf4 h5 b5 axb5 Qe7 Nc3 Qf6 Nb1 Qd8 g4 g6 Nh3 Bg7 Ng1 Nd7 h6 Ndf6 hxg7 h5 Nh3 h4 Ng1 Nh5 gxh5 Qf6 Bg2 Qe7 Bf1 Qd8 b4 f5 e4 Kf7 Ke2 c5 e5 a5 b6 c3 b7 c2 b8N g5 b5 c4 b6 c3 b7 f3+ Ke3 h3 Na6 h2 b8R f2 Qe2 f4+ Ke4 f3 Rb4 a4 Rb2 a3 Raa2 Qd6 Ra1 a2 Bg2 f1Q Qc4+ Be6 Ke3 f2 Ne2 Re8 Nc5 Nf6 Qb3 Qd1 Bd5 f1R Kd4 Rg1 Kc4 Rg2 Rf1 h1R Nd3 Rh4+ Kb5 Re7 Rf4 Rc8 Bc6 Qf1 Rg4 Qf5 Bd7 Kg8 Rc4 Kh7 Qb4 Kh6 Rb3 Ne4 g8Q Rhg4 Rc7 Nc5 Bb2 c1R Qd8 c2 Nbc3 Rh1 Rf1 a1R Ne1 Ra7 Qa3 c1R Na4 Qh7 Rc6 Ne4 Rc4 Bd5 Qc7 Rc3 e6 Rg7 e7 Re3 e8Q Rhh4 Qed8 Re7 Be8 Qdg6 Qg3 Re5 Nf4 Qe6 Qh2
2r5/2QrrN2/2RBqNB1/r2pbB2/RQ3r1q/K1Q1P1nq/4rP1N/k7 b - - 0 1 legal: proof: b4 f5 c4 g5 h4 gxh4 e4 fxe4 a4 b5 axb5 d6 b6 Bg7 b7 Bd7 b5 Bh6 b6 Bf8 Qb3 e3 Kd1 e2+ Kc2 Bb5 cxb5 e1R Ra5 e5 Qc3 e4 Qa3 e3 Nc3 e2 Qb3 Nc6 Nb1 Ne5 Ra3 Ng4 Ra1 Ne3+ dxe3 Kd7 Kd2 Ke7 Kc2 Ke8 Kb2 Kd7 b8Q a5 g4 c5 g5 h5 g6 c4 b7 Ke6 b6 Kd5 g7 a4 Bh3 a3+ Ka2 Ra4 Qa7 Rd1 b8N e1R b7 Re2+ Qb2 c3 Bf5 Kc4 Bh3 c2 Qf6 Qe7 Bc8 h3 Bf5 h2 Qb2 h4 Qe5 h3 Qea5 Nh6 g8B+ Qe6 Bg6 Bg7 B6f7 Nf5 Nc3 Ng3 Nf3 Be5 Nd5 Rh7 Bg6 Re7 Nf6 Rd3 Rf1 h1Q Nbd7 h2 b8Q Rd4 Bd2 c1R B8h7 d5 Qb2 Rf4 Bb4 Rc3 Q5b6 Ra5 Rfc1 Qg2 Bf5 h1Q Bd6 Qh4 Bhg6 Qgh3 Nh2 Rcc2 Nb8 Rd7 Nc6 Re7 Qab8 Raa7 Nd8 Rad7 Nf7 Rc3 Ne4 Kd3 Qb4 Rc8 Kb3 a2 Rc4 Rcc7 Rac1 Rc8 Qc7 a1R Rc6 Ra5 Ra1 Rb5 Ka3 Rc5 Q2d4+ Kc2 Ra2+ Kc1 Qbc3+ Kb1 Qa4 Ra5 Nf6+ Rc2 Rb2+ Ka1 Rb4+ Rb2 Rbc4 Rb5 Qab3 Rc5 Ra4 Ra5 Qcb4 Re2 Q3c3+
R5nN/1rqB1N1q/1Q2n2R/1PB4Q/K6N/B1P2p2/1r3r1q/2nnqk1R b - - 0 1 illegal: No possible last move
1kRb4/rP2q1Rq/3P4/2K2p1b/r1B2NN1/Qr2Q1q1/2q1B3/N1RbB2b b - - 0 1 legal: proof: c4 b5 g4 e5 a4 f5 axb5 d5 h4 dxc4 g5 Nf6 Qc2 Na6 Qd1 Nc5 f3 Ne6 f4 exf4 gxf6 g5 Rh3 g4 Rh1 Ng5 hxg5 Bh6 Ra2 Bg7 Ra1 Bf8 Kf2 Kd7 e4 a5 b4 h5 d4 c5 d5 Kc7 e5 f3 Ke3 a4 g6 f2 e6 a3 d6+ Kb8 g7 c3 g8N g3 f7 g2 e7 c4 Kd4 c2 e8B c3 b6 a2 b7 h4 b5 h3 Qd3 h2 Qe3 Rh3 Na3 Ra7 Be2 f1B Bd2 c1Q Nh6 c2 Be1 Qe7 Ng4 Be6 Kc5 Bb3 Bc4 Qb1 Ne2 g1Q Nf4 c1Q Nc2 Qg3 Rg1 h1B Rg2 Bg7 f8R Bf6 Rg1 Qh7 Bh5+ Bd8 Rg8 Qd1 Rh8 Qb2 Rc1 Qbg7 Na1 Qe7 Rg8 Qd3 Rg2 Qb1 Rgc2 Bd3 Rg7 Be2 Nh6 Rh2 Bcf7 Qg8 Kd4 Ra5 Rc8+ Ka7 b6+ Ka6 b8Q Qh7 b7 Bbd1 Nc2 a1R Qc7 Ka7 Qcc3 R1a4+ Bc4 Ra6 Rc5 Kb8 Na1 Ra7 Qa3 Bg4 Rc6 Rb2 Kc5 Rb3 Rc7 Qc2 Rc6 Bh3 Be2 Bg4 Rc7 Bh5 Ng4 Rb2 Rc6 Rb3 Rc8+
2B5/1P1b3n/Q2nP3/qb3RQ1/pB2kNK1/B6R/n1bn1b1N/RQ3bb1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nc3 cxd4 Nb1 f3 Bh3 f4 Bg2 Qe7 Bf1 Qd8 h3 g5 Kd2 h5 Ke1 a5 Bg2 Rh6 Bf1 Rf6 h4 Rf5 gxf5 g4 Bd2 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Bg7 Qd2 Bh6 Qd1 Bf8 Kf2 Kf7 b4 d5 e4 a4 c4 h4 e5 d3 b6 g3+ Ke1 d4 b5 g2 Kf2 d2 c5 h3 c6 h2 f6 Ke6 g6 Kd5 b7 d3 b6 Ne7 e6 Nd7 b8B Ke4 g7 Nf5 g8Q Nd6 f7 Nf6 c7 Nh7 Ne2 Bd7 Qe1 d1B c8Q d2 Ba3 Bc2 Qa6 Bb5 b7 Qa5 Qg5 Bg7 f8R Bb2 Rg1 h1B Rf5 Bc3 Ba7 Be5 Be3 Bd4 Qc1 Bb6 Bec5 Bd7 Qb2 Ba7 Qbb6 Bb5 Bcb4 d1N+ Ke1 Nc3 Kf2 Na2 Nd2+ Kd3 Nc4 Bd7 Ne3+ Ke4 Ng4 Bb5 Nh2 Bd7 Ke1 f2+ Kd2 f3 Nf4 Bb5 Be2 Bd7 Bb5 f1N+ Ke1 f2+ Ke2 Nd2 Rgc1 Bc8 Bd7 f1B+ Kf2 g1B+ Kg3 Bhg2 Kg4 Bb5 Rcb1 Bgf1 Rb3 Bbc4 Qbb5 Baf2 Rh3 B4d3 Be8 Bd7 Qbb6 Bc6 Bd7 Bdb5 Bc8 Bd7 Bc3 Bbc6 Qb1 Bcb5 Bcb4
1rn2n1B/rp1N2N1/1RPQ1n2/2B1rQ1B/2P2q2/4Nrr1/3K1Q1n/kr5R b - - 0 1 legal: proof: f4 a5 d4 e5 b4 exf4 g3 axb4 Kd2 c5 dxc5 f3 Kd3 f2 Ke3 Nc6 Kd2 Nb8 Nh3 f5 Kd3 g5 Kd2 f4 Ng1 d6 Nc3 f3 Nb1 g4 h3 Bh6+ Kd3 Bf4 gxf4 g3 Kd2 Bg4 hxg4 Qd7 Ke3 Qe7+ Kd2 Qd8 c4 Ke7 a4 Kf6 e4 h5 a5 d5 f5 Ke5 g5 Kd4 f6 g2 g6 h4 e5 b3 c6 h3 f7 b2 f8B h2 g7 Ne7 g8N Qd6 e6 Ra7 a6 Nc8 e7 Nd7 Nh3 g1R e8Q Rg3 Na3 b1R Bg2 f1R Qe6 f2 Ng5 Qb8 Bd6 Nf8 Qf5 Re1 Bh3 Re5 Nf6 f1R Nd7 Rff3 Bg4 Rg8 Rf1 h1N Bh5 Nf2 Rh1 Ng4 Ra2 Nh2 Rb2 Rh8 Rb6 Qc7 Nh7 Qb8 Nhf6 Rhg8 Ne8 Qc7 Qe2 Qb8 Ke1 Kc3 Nc2 d4 Ne3 d3 Ng7 d2+ Kd1 Rh8 Qf2 Qc7 Ke2 d1N Bc5 Qb8 B1a3 Rg8 Bab4+ Kb2 Kd2 Nc3 Bd4 Ka2 Bbc5 Nd5 Ba1 Nf6 Bb2 Ra8 a7 Qc7 Bca3 Rb8 a8Q Qd6+ Bd4 Qc7 Bdc5 Ka1 Qa7 Ra8 Qb8 Ra7 Bc1 Re7 B1a3 Qf4 Qd6 Re5 Bb2+ Ka2 Qh3 Re8 Qhe6 Ng6 Bcd4 Nfg4 Kd3 Nce7 Nf5 Rb8 Nf8 Nc8 Nd7 Nf8 Kd2 Rg5 Bh8 Nf6 Ng7 Rf5 Ba3 Re5 Bc5 Ka1 Qf5
2R1r3/1P2r3/Q5P1/1b1rp2B/1Kb3nk/QNp1NBn1/1bQ3R1/1n1qBN2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 d5 cxd5 f5 e4 fxe4 a4 axb4 axb5 Bg7 Qf3 Bh6 Qd1 Bf8 d4 Kf7 Kd2 Kg6 g4 c5 f4 h5 d6 e5 d7 b3 Kc3 e3 d5 c4 d6 e2 b6 e1N b7 h4 f5+ Kh7 f6 Kg6 f7 b2 Bd2 h3 Na3 b1B Nc2 h2 Ra2 Nc6 Be2 Nd4 Bf3 Ne6 Ne2 Rb8 Kb4 c3 Ne3 Rh7 Ng3 Bc2 Ngf1 Bd3 Qc2 Nh6 Rg1 h1R Rg2 Nd4 Ra8 Be7 f8Q Rh4 Rh2 Ne2 Rg2 Qc7 d8Q Ng3 Qd7 Qd8 Qc6 Be6 Qa6 Rc8 Rb8 Bc4 Ra8 Rc5 d7+ Bd6 Rc8 Re7 Bd5 Nf3 Be1 Nd2 Bf3 Re8 Qe7 Nb1 Qf8 Qe7 d8N Qd7 Ne6 Rd5+ Nc5 Bb5 Qb2 Bdc4 Qc2+ Qf5 Qe7 Qd3 Qf8 Ng8 Qe7 Rh7 Qf8 Nf6 Qe7 Bb8 Nb3 Rf7 Qc5 Rfe7 Qca7 Bd6+ Qc5 Kh7 g6+ Kh6 g7 Kg5 g8B Qd1 Bf7 Kh4 g5 Ng4 Bh5 Re6 Ka5 R6e7 Qa3 Bc5 g6 Bd6 Qa1 Ba3 Qaa2 Bc1 Kb4 Bb2 Q2a3
K4Nb1/n7/Rq1B2pn/6QR/2P3pQ/1Pnr1r1B/1bR1qQB1/2kN1b2 b - - 0 1 legal: proof: e4 c5 g4 h5 d4 f5 exf5 cxd4 a3 hxg4 b3 b5 Bxb5 a6 Bxa6 Bb7 Bf1 Bc8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 d5 c4 g6 h4 d3 f6 d4 a4 d2 a5 Ke3 a6 d3 f7 Nf6 f5 Bd7 h5 Nh7 f6 Qe8 Kb6 e5 Kb7 e4 h6 Qe6 a7 Ba3 f8Q Bb2 f7 Nc6 Rh5 Ng5 h7 Rd8 a8B Na7 Ne2 Bc8+ Kb8 Qb6+ Bb7 Rd6 Nbc3 Be6 Ka8 Rd4 Qd8 Rf8 h8R Ba3 Qe1 Rd6 Bb2 d1N Rh4 d2 Rh2 Rd3 Qh4 Bd5 Nd4 Be6 Na4 Nc3 Bh3 d1B Rh5 Be2 Bc6 Bd5 Ne6 Kd2 Bc1+ Kc2 Bf4 e3 Nb2 Kd2 Ra2 Kc1 Nd1 Bf1 Bd6 Bb2 Rd2 e2 Ra6 e1Q Bb7 Qe2 Bc6 Rg8 f8Q Nf7 Qdg5 Nh6 Bb7 Rg7 Qff2 Rf7 Nf8 Rf6 Bc6 Bg8 Bcg2 Rff3 Rc2+
K1Nr1b2/3R3r/B2rprb1/1Rqk4/2Rpn3/2Q1PQ2/1n1PrN1N/1B3Q2 b - - 0 1 legal: proof: b4 b5 a4 c5 axb5 g5 bxc5 a6 f4 Nf6 fxg5 Ng8 g4 axb5 g6 h6 g5 Ra4 g7 Rd4 g6 Rd6 Bb2 Ra6 Bf6 Ra8 Bg5 hxg5 Kf2 f5 Ke3 d5 Kd4 Kd7 h4 Ke6 c4 f4 h5 b4 c6 g4 Kc5 g3 e3 b3 h6 g2 c7 f3 Kb6 b2 h7 f2 c5 Ra5 c6 Qe8 Nc3 Ra7 Rb1 Na6 Qf3 Nf6 g8Q+ Kd6 g7 Ne4 Qgf7 Bf5 c8R e6 g8B Nac5 c7 Bg6 Nd1 Qe7 Ba6 f1R Nf2 Nd3 Rh2 Ra8 Kb7 Ke5 Rd8 Qc5 Rd7 Rd8 c8N Re1 Rc1 b1R+ Ka8 Rb6 Rc4 Nb2 Rh4 Rf1 Rb4 Rd6 Rb5 Ng3 Rc4 Ne4 Qd1 Re1 Qff3 Re2 Qf1 d4 Bf7 Rg8 h8Q+ Rg7 Bg8 Kd5 Bh7 Rf7 Qg7 Rf6 Qe7 Re8 Qd8 Re7 Qa5 Re8 Qc3 Rd8 Ngh3 g1R Ng4 Rh1 Nhf2 Bf7 Bf5 Rh7 Nh2 Bg6 Q3h3 Ng3 Bb1 Ne4 Qf3
1b3R1N/Br3B1K/b2p1Q2/2QRRp2/n1Qnr2P/3P3B/q5kn/n1n3N1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 b5 b4 e5 bxc5 exf4 a4 a6 axb5 axb5 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 c4 Kh4 Kf5 g5 e4 b4 h6 f3 h7 b3 d3 f6 Kg6 f5 c6 g4 c7 f2 e5 b2 e6 g3 c5 g2 e7 Ra2 e8B Nh6 c6 Ra4 Be3 Ng4 Nd2 b1N Nc4 Ba6 c8Q Bd6 c7 Nc6 Ne5 Re4 Nf7 Nd4 Be2 f1N Qc1 Nfd2 Ra5 N2b3 Qc4 Nc3 Rd5 Na1 h3 Kg3 h4 Nh2 Bg4 Rf8 h8Q Na4 Qf6 Rh8 Qc5 Rh7 Nh8 Rhe7 Bf7 Qg8+ Kh6 Be5 Qc4 Bd6 Qf8 Be5 c8R Bb8 Bfh5 Rf7 Qfc5 d6 Rf8 Ra7 Bf7 Rb7 Bd2 Kf2 Ba5 Kf1 Bb6 Kf2 Ba7 Kf1 Ne2+ Kf2 Rb1 g1N Rb5 Kg2 Re5 Qg5+ Kh7 Qd2 Rd5 Qa2 Ra5 Ngf3 Rb5 Ndb3 Ng1 Nc1 Rb1 Ne2 Re1 Nc1 Re3 Nd4 Re1 Rf4 Ree5 Re4 Bh3+
1N2n1QN/Q1Pn1Bn1/Q2Nr3/2bp1RR1/Kp1B4/bn2P1r1/B7/4q1kn b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 h3 g5 Na3 f5 Nb1 b6 Nd2 Bb7 Nb1 Bf3 gxf5 g4 Bg5 g3 Bc1 Bg4 hxg4 Bd6 Bg2 Bc5 Bf1 Bf8 Kd2 Kf7 c4 d5 Kc2 h5 Kb3 b5 a4 g2 e3 h4 g5 h3 g6+ Ke7 g7 h2 c5 d3 c6 d2 f6+ Ke6 c7 Kf5 a5 Ke4 e6 Nh6 g8Q Nf5 e7 Nd7 e8B Rh6 f7 Bc5 f8N Ng7 a6 Re6 a7 Qh4 Qe2 d1N Ng6 Nb2 Nh8 Qe1 Na3 Nc4 Bb2 Nd6 Bf7 Nde8 Nf3 g1B Nd4 Bf2 Rb1 Bh4 Nc6 Bhe7 Rg1 h1N Nc4 Bed6 Qd3+ Kf3 Nb8 Kf2 Rg5 Bf8 Rf5+ Kg1 Bd4 Bfe7 Nd6 Bf8 Kb2 b3 Qc4 Be7 Qa4 Bf8 Qa6 Be7 Bc4 Ba3+ Ka1 b2+ Ka2 b4 Kb3 Bf8 Rc1 b1N Ka4 Nd2 Ba2 Nb3 Rc2 Be7 Rh2 Bf8 Rhh5 Be7 Nc6 Rd8 a8Q Rb8 Q8a7 Rb6 Nc4 Bc5 Nb8 Rg6 Nd6 Rg3 Rhg5 Rc6 Nb5 Re6 Nd6
n1KBk1Q1/6n1/Qb3Rr1/b1n5/p2p4/N1RrP1NQ/1q1r1P2/B2rN1R1 b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 f5 d4 exd4 h3 c5 Nf3 g5 Bg2 Bb7 Ng1 c4 Be4 Bd5 Bd3 cxd3 gxf5 g4 Bg5 g3 Bh6 Bf3 Bc1 Bg4 hxg4 Bh6 Ra4 Bg7 Ra1 Bf8 Kd2 a5 c4 d5 b4 h5 g5 a4 e3 g2 c5 h4 b6 h3 b7 h2 c6 Rh5 b5 Rh8 f6 Rh3 c7 Rh7 c8Q Bc5 f7+ Kf8 b6 Rh3 g6 Ke7 f8R Nh6 g7 Na6 g8Q Nf5 b8N Nc7 b7 Bb6 Rf6 Rg3 Na6 Ng7 b8B Rg6 Qdg4 Qd7 Qf3 Qb5 Nb4 Ra6 Na3 Na8 Nbc2 Qb2 Ne2 Ra7 Bf4 Rd7 Rd1 h1N Bc7 g1B Ng3 Bh2 Rg1 Rd6 Qa6 Ba5+ Kd1 d2 Ke2 d1R Bd8+ Kd7 Qg2 d3+ Kf3 d2 Kf4 Bb6 Ne1 Ba5 Qh7 Ke8 Qhh3 Rd7 Nb1 Rd6 Ra3 Bb6 Rc3 Rd7 Ke5 Ba5 Rf4 Rdd6 Ne2 Ng3 Na3 Ne4 Ng3 Nc5 Rf6 d4 Qh1 Rb6 Q1g2 Rb3 Kd6 Bb6 Rc4 Rd3 Rc3 Qa2 Bb2 Ba5 Ba1 Qb2 Kc6 Bb6 Nh1 Bhc7 Ng3 Ba5 Qd5 Bcb6 Kd6 Rc1 Qa2 d1R Q2c4 R1d2 Kc6 Nce6 Kb7 Rcd1 Kc8 Nc5 Qg8#
r3n3/QKNp3R/4B1Q1/2PQ2N1/2R3qB/4kb2/P2pn2R/nB1rb1rr b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 a5 f4 e5 fxe5 f5 b4 axb4 d4 cxd4 exf5 Ra3 Bg2 Ra7 Bf1 Ra8 Kf2 Ke7 h4 b5 c4 g5 h6 g4 h5 b3 f6+ Ke6 h7 Kf5 f7 Ke4 h6 d3 e6 b2 e7 b4 e8B b3 Bg5 Na6 Bh4 Nb8 Na3 b1R Nb5 b2 Nh3 Qg5 Nc7 Qg7 Rh2 Nf6 Ng5+ Kf4 Bh3 Rg8 h8R Nc6 h7 Bb4 f8Q Na5 Qc5 Nb3 Bg6 Ne8 Qa7 Bb7 Qh1 Rg1 Qd5 Rd1 Rc1 b1R c5 Na1 Rc4+ Qd4+ Kg2 g3 Be6 Ke3 Bgf5 Kd2 Kf3+ g2 Bg6 Qg7 Ke4 Qd4+ Kf5 Qg4+ Ke5 Ke3 Be4 g1N B4f5 Nf6 Kd6 Be1 Bg6 d2 Bgf5 Rb3 Bb1 Rg6 Nb5 Ra3 Kc7 Ne2 Kb6 Rc3 Nc7 Bc6 Ka6 Ne8 Kb6 Rcc1 Ka6 Bb5+ Kb7 Ba4 Rg8 Bc2 h8Q Be4 Qh5 Bf3 Rh8 Rg7 Qg6 Rh7 Rf2 Rh5 Rh7 Rh6 Bg3 Rh1 Rfh2 Bf2 Qc2 Rdg1 Qg6 Rcd1 Bh4 Bg3 Bc2 Be1 Bb1
3rN1rb/1NP1Q3/B6p/Q1Q3R1/1Bb1PR2/2BRk1Kn/rn3p1r/3q2b1 b - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 b5 d4 cxd4 a4 e5 axb5 f6 g4 f5 gxf5 exf4 Kf2 Ke7 c4 Kd6 e4 Ke5 b4 d5 c5 a5 g6 h6 f6 d3 c6 Kd4 f7 d2 g7 f3 b6 a4 b7 a3 c7 a2 b5 Nc6 b8Q Nf6 g8R Ra5 b6 Ra7 b7 Nh7 Na3 Bg7 f8B Qg5 Qa8 Qh5 b8Q Be6 Nh3 Ne5 Bb4 Ng5 Qe8 Nd3+ Kg3 Ke3 Qe7 d4 Nf2 Nh3 Nb5 Bc4 Qc2 Nb2 Nd6 d3 Ne8 Bd4 Rg5 Rg8 Rb1 Ra4 Qa5 a1B Be2 Ra2 Rf1 Nd1 Bca3 Nb2 Bc3 d1R Bab4 d2 Nd3 Rc1 Rf2 Rh1 Nc5 d1R Nb7 Rh2 Rf1 Rd3 Rbd1 Bh8 Rd2 Rd7 Rd4 Rd8 Rg1 f2 Bf1 Qd1 Rg2 Bb3 Ba6 Bc4 Rg4 Rf8 Rf4 Rg8+ Kh4 Be5 Rg5 Qe1 Rf8 Bf1 Rd5 Na4 Bb2 Qd1 Nf6 Rg2 Ne8 Bh2 Rf4 Bg1 Bh8 Rh2 Kg3 Be5 Qc6 Bc4 Qcc5+ Ke2 Rd7 Nb2 Rd3 Bd6 Bd4 Be5 Bdc3 Bh8 Rd4 Ke3 Rd3+
3r4/2pbbNn1/1P1nP1n1/2NKB1RB/k3Q2b/b1p1q2N/4Br2/2Q2R1Q b - - 0 1 illegal: No possible last move
n1r1Q2q/6B1/BP5R/R3qq1r/p1P1Qbqk/5RQb/KN4p1/1N1N3n b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 b5 a4 f5 axb5 e6 d4 cxd4 exf5 e5 f4 exf4 Kd2 Kf7 h4 Kf6 b4 d5 b6 a5 b7 g5 b5 g4 h6 d3 Kc3 d4+ Kb2 g3 h7 f3 b6 d2 h5 Kg5 h6 g2 f6 d3 f7 f2 Qe1 Bd7 Qe4 Bh3 Ne2 Ne7 Nec3 Nf5 Nd1 Bd6 f8R Bf4 Ka2 Na6 b8N Ng3 Nd7 Kh4 Ne5 Nc7 Nc4 Rc8 Bb2 Na8 Bg7 Qe8 Ncb2 Qe5 Be2 f1Q Rh2 Nh1 c3 Rg8 h8Q Qf2 Qhh7 Rh8 Qhg6 Qfd4 h7 Qf5 Qge8 Qde5 Nf2 d1Q Bf1 d2 Ba6 Qd5+ c4 Qdh5 Nfd1 Qde5 Rf6 Rf8 h8Q Rf7 Ne3 d1Q Qh7 Qdg4 Ned1 Rfc7 Qhh8 Rc5 Rh6 Nf2 Rh1 Rb5 Rf1 Nh1 Rf3 Rd5 Kb3 Rdc5 Ra3 Rd5 Ka2 Rb5 Rad3 a4 Rd5 Rb3 Ra5 Rb5 Qhf8 Rd5 Qa3 Rdc5 Qae3 Rd5 Qg1 Rb5 Qh2 Rd5 Re6 Qh8 Rh6+ Qfh5 Qf8 Qe8 Rc6 Rg5 Rd6 Qe5 Qe8 Qg6 Re6 Q6f5 Rh6+ Rh5 Qg3+
b1R2Q1k/5rb1/1KB4q/5pPb/3RQN1R/2r1n2q/BPNpQ3/2N2qr1 b - - 0 1 illegal: No possible last move, all moves rejected
1br3R1/1p5K/N2r3N/QPQ2B1B/b1Nnq1R1/2q2r2/1pQ1Pb1k/Rq6 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 g4 d5 cxd5 c5 d4 h5 gxh5 c4 b5 Nd7 Bd2 Nc5 Bb4 axb4 dxc5 Rh6 Kd2 Rh7 Ke1 Rh8 Kd2 Ke7 h4 Kf6 a4 Ke5 h6 f5 a5 g5 c6 c3+ Kd3 c2 d6 c1Q c7 g4 h7 f3 d7 Kf4 h5 Kg3 a6 f2 h6 b3 a7 f4 Ke4 f3 Kf5 b2 Kg6 Qc5 Na3 Qe3 Bh3 Qde7 d8Q Be6 c8B f1Q Qa5 f2 Qc2 Qb1 Nf3 f1R Nh4 Rf3 Rg1+ Kh2 Nf5 g3 Bg4 g2 Bh5 Bb3 Nc4 Q7e4 Be6 Re8 a8N Ba4 Nc7 Qc3 Na6 Bc5 Nb8 Rc8 Na6 Nf6 Kg7 Rhd8 h8Q Bd6 h7 Bb8 Qf8 Nd5+ Kg8 Nf4 h8R Rd2 Kh7 Rd4 Bd7 Ne6 Qc5 Rd6 Rg8 Nd4 Be6 Qc6 Nh6 Qe8 Re1 g1B Bf5 Bf2 Reg1 Qe4 R1g4
nN1Qn3/3r1B1B/R3Q2N/3pP1q1/KB3Q1b/Pnrk2rn/2p3n1/3N1R2 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 g4 c5 d3 h5 gxh5 b5 Bg2 Bb7 Bh3 axb4 Bf1 Bd5 cxb5 c4 Kf2 c3 Ke1 Bc4 dxc4 Qc8 Na3 Qc7 Nb1 Qd8 h4 Ke7 e4 Kf6 h6 Ke5 c5 g5 c6 d5 h5 f5 h7 c2 Kd2 Kd4 b6 b3 h6 f3 b7 f4 e5 b2 c7 f2 c8B f3 a3 g4 Bf5 g3 B1h3 f1R Nc3 f2 Qf3 g2 Nd1 Nd7 b8N Ngf6 Ne2+ Kc4 Ng3 g1N Rb1 Rg8 h8Q Ra7 h7 Ne8 Qf6 Nb6 h8Q Na8 Qe6 Be7 Bh7 Rd7 Nf5 Bh4 Nh6 Rg3 Qhg8 Re1 Qf4+ Re4 Bg4 Qg5 Bh5 Nh3 Rf1 Kd4 Bf7 Kc4 Qh8 Rc3 Qe3 Rg4 Qhf6 Rg2 Qd8 Rg3 Qf4+ Kb5 Re1 Kc5 Re4 Kb5 Ra4 f1N+ Ke1 Kc5 Ra6 Ne3 Bd2 Ng2+ Ke2 Kb5 Be1 Kc5 Kd2 Kb5 Ra1 b1N+ Kc1 Nd2 Kb2 Ne4 Ka2 Kc4 Rb1 Kd3 Rc1 Rc4 Kb3 Rcc7 Ka4 Rc3 Nf5 Nd2 Nh6+ Qg6 Ra1 Nb3 Bd2 Rc4+ Bb4 Rc3 Ne3 Qf5 Rf1 Qg6 Nd1 Qf5 Bhg8 Qg5 Bh7+
br6/K1p4R/1NP2R2/1Q1r4/b2bkNPQ/1B3q2/1RQ1nbbp/3rN1B1 b - - 0 1 legal: proof: g4 e5 e4 g5 h4 b5 hxg5 f5 a4 Nc6 axb5 Nce7 f4 Ng6 d3 exf4 d4 Ne5 dxe5 fxe4 Kd2 Kf7 Kc3 Ke6 Kc4 a5 b4 h5 g6 h4 b6 d5+ Kb5 f3 c4 a4 c5 d4 g7 Kd5 e6 d3 b7 d2 b8R f2 e7 h3 e8Q a3 Ne2 a2 Na3 e3 Qc2 Nh6 g8Q+ Be6 Qgf7 d1B Qfh7 Nf5 Qh4 Bg7 Nf4+ Ke5 Rb6 e2 Be3 e1B Bc4 f1B Bg1 Bg2 Bb3 Bf2 Rb1 a1R Rb2 Rb8 Ka6 Nd4 b5 Ne2 Ka7 Qd5 Qd7 Bf7 Rf6 Qf3 b6 Rh5 Qb5 Bd5 Rh2 Ba8 b7 Kd4 c6 Rd5 Rh1 Rg8 b8N h2 Nd7 Rb1 Nb6 Rb8 Rh6 Bh8 Rh7 Ke5 Nc4+ Kd4 Ne5 Ke3 Ned3 Bd4 Qcc5 Bc2 Ne1 Rd1 Qcc4 Bg6 Qc2 Bd3 Qbc5 Bb5 Q5c4 Ba4 Qc5 Bf1 Qb5 Bg2 Nfd3 Qg3 Rg7 Ke4 Rh7 Bfe3 Bf2 Bd2 Rf1 B2e3 Bg1 Qh3 Rf5 Bf2 Rf6 Qf3 Nf4+
5bb1/1kN4n/R2B1Rq1/BP2pN2/K2NP3/1pr1Q2B/1rb3bQ/1q3b1Q b - - 0 1 legal: proof: b4 b5 c4 a5 a4 g5 h4 d5 cxd5 Qd6 h5 Qh2 f4 Nc6 fxg5 Nd4 h6 axb4 Ra2 b3 Ra3 b4 Ra1 Nb5 axb5 Qxh6 Ra6 Qd6 Ra1 Qh2 e4 Kd7 d4 c5 Kd2 Kc7 g6 h5 d6+ Kb8 d5 e5 g7 f5 d7 f4 d8B c4 d6 h4 d7 f3 Nc3 f2 g4 h3 g5 b2 Kc2 Ne7 g8Q Nd5 g6 Rh5 g7 Kb7 Qh8 Nf6 g8N Nh7 Nge2 Ra3 Nd4 Qg3 Nh6 h2 Ba5 Qg6 d8Q Be6 Bh3 f1B Nd5 c3 Nhf5 Bg8 Nc7 Rh6 Rg1 h1B Qg5 Bhg2 Qe3 Rh4 Bd2 Rf4 Be1 Rf2+ Qdd2 Re2 Bh4 Rf2 Be7 Rb3 Bd6 b1B+ Kd1 c2+ Kc1 Rc3 Kb2 b3 Ka3 c1Q+ Ka4 Bfc4 Rf1 Bc2 Qd1 Rd2 Rf2 Qb1 Qh1 Ng5 Qh4 Bcf1 Qhg3 Nh7 Qgh2 Qh5 Ne7 Qg6 Rf6 Bd1 Nef5 Rb2 Ra3 Bc2 Kb4 Qh6 Bb6 Bf7 Ra6 Bg8 Ka4 Qg6 Ba5
2q1N3/k1Nbq1rb/1R4nR/1rr2r2/B1BB2K1/PN2Q3/2pb1pP1/Q6Q b - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 a5 f4 d5 b4 axb4 c3 e5 c4 exf4 cxd5 c4 Bb2 Nd7 Bc1 Nc5 dxc5 Ra7 Bd2 Ra5 Bc1 Ra8 Kf2 Kd7 Kf3 Kc7 e4 Kb8 d6 f5 d7 b5 e5 h5 c6 h4 c7+ Ka7 e6 h3 g6 c3 g7 b3 a3 b2 e7 h2 e8B b4 Bc4 b3 Nd2 b1B Bb2 Qe7 d8Q Bd7 c8Q Rh7 Bc1 b2 Qc6 Rc8 Qh6 Rc5 Qe1 Bc2 Ra2 b1R Qe3 Rb5 Nh3 Bd3 Bb2 c2 Ng5 Be4+ Kf2 f3 Kg3 f2 Nb3 f1R Ne6 f4+ Kg4 f3 Bd4 Bd3 Rb2 Rf2 Rf1 h1Q Qh3 Qh2 Rh1 Qb8 Qc7+ Qb7 Qce5 Qc8 Qh4 Rd2 Qhe1 f2 Rh6 Be4 Qh1 Bg6 Bc3 Rd5 Bd4 Be4 Qf6 Rf5 Nc7 Qe6 Bf7 Ne7 g8N Ng6 Be8 Rg7 Qe5 Bd6 Nf6 Qe7 Rb1 Be6 Bc6 Bd7 Nfe8 Bd3 Qf6 Bf4 Rb2 Rb6 Ba4 Rbb5 Qee1 Bd2 Qfe5 Be4 Qa1 Bd5 Qe2 Bg8 Qe3 Bh7 Nc1 Ra5 Rb6 Rab5 Nb3
q1n2B2/N1q3Q1/B5p1/1r3RrR/2rRn3/p1Qqr3/b1N1PP2/k1K2BQ1 b - - 0 1 illegal: No possible last move
4q3/1r1Rn1r1/2p1Pb2/5N2/QnB1qk1P/2Q1B1N1/1r3pn1/KBRnQ1N1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 g4 hxg4 b6 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Ra7 Bg2 Ra5 Bf1 Ra8 h4 Kd7 e4 Kd6 d4 g5 Kd2 f5 Kc3 a2 Kb2 f3 b7 f2 a5 f4 a6 f3 a7 g3 Be2 f1N Bc4 g2 Be3 f2 Nc3 g4 Qe1 g3 Rd1 a1N Nce2 Nc6 b8Q Qe8 Qb3 Bg7 Qa4 Nb4 Rd3 Rc8 a8B Bf6 Bb7 Rh7 e5+ Ke7 e6 Kd6 Bba6 c6 Ba2 Rhc7 B6c4 Nac2 Bb1 Rb8 Qc3 Ne1 Ka1 Ne7 Rd1 Rcb7 Rd2 Kc7 d6+ Kb6 d7 Kc7 d5 Kd6 Rd4 Ke5 Rd3+ Ke4 d8N Kf5 d6 Kg4 Bf4 Ne3 d7 Nd1 Nf7 Kf5 d8Q Kg4 Nh3 g1Q Be3 Qg2 Nhg1 Qe4 Rd7 g2 Qc7 Kf5 Qd6 Kg4 Qd2 Kf5 Nd6+ Kg4 Nf3 g1R Nf5 Rg3 Nfg1 Ng2 Nh3 Kf3 Qe1 Rg7 Neg3 Kg4 Rf1 Kf3 Ng1+ Kg4 Bd4 Kf4 Bc5 Rb6 Bd4 R8b7 Be3+ Kg4 Bd2 Nde3 Bb3 Kf4 Qe2 Na2 Bc4 Rb2 Rc1 Nb4 Qe1 Kg4 N1e2 Nd1 Be3 Kf3 Ng1+ Kg4 Bc5 Kf4 Be3+
1Bq2nB1/1N1N2R1/bpQ5/r1nRn3/1RP1Bk1K/2r1pq2/1Q1r1P2/N2r4 b - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 c5 b4 cxd4 g4 axb4 e4 f5 exf5 e6 f6 Bc5 g6 Bf8 g5 Bg7 fxg7 Ra6 Bh3 Ra3 Bf1 Ra8 a4 Ke7 c4 Kd6 a5 Ke5 a6 d5 a7 h5 Rh3 d3 Ra2 b3 Rd2 h4 Qe2+ Kf4 Na3 b6 Nb5 d4 Nf3 e5 Nd6 b2 Nb7 b1N Bg2 e4 Kf1 Ne7 g8N Nbc6 g7 Ng6 Nf6 Nce5 g8B Nf8 g6 Nc3 g7 Na4 Nd7 Nc5 Ne1 Qc7 Rh1 h3 Nc2 h2 Na1 Rh3 Bf3 Qc6 Kg2 Qe6 Rb2+ d2 Rb4 d3 Ba3 d1Q Qb2 d2 Rg1 h1R Rf1 e3 Be4 Rh5 Re1 Rb8 a8Q Qe2 Qa4 d1R Qc6 Rd3 Rc1 Rc3 Rd1 Rf5 Rd2 Rd1 Kh3 Qf3+ Kh4 Ra8 Rd5 Ra5 Bf7 Rg5 g8R Rgg1 Rg6 Rd2 Rg7 Rgd1 Bg8 Qf5 Nd6 Ba6 Nb7 Ncd3 Rb3 Qe6 Bd6 Nc5 Bb8 Qe8 Rb5 Qc8 Rb4
2KbBQ1q/1N2Nqk1/pr2n3/nB1P2q1/2P1Nq1R/6R1/3n1pQB/4r1Q1 b - - 0 1 illegal: No possible last move
BK2R2n/3kR2P/2p1pQ2/5q2/Q1N4Q/2q1N3/Bnnbr2P/1b1B1qNq b - - 0 1 illegal: No possible last move, all moves rejected
1K1k1Qr1/1n3p2/4QBBb/1PNqP3/3r1nn1/2Q1q1R1/r2p2B1/1nNRN3 b - - 0 1 illegal: No possible last move
Br3BB1/1P3q2/3nR1RN/pbKQ3Q/3R1Q2/p1Nkqr2/2r2P2/2q3rn b - - 0 1 illegal: No possible last move, all moves rejected
2rn1k1B/b1P2p1Q/2Rnn1N1/NR6/q5b1/1P2bB1B/2R3pn/1K1b2NQ b - - 0 1 legal: proof: f4 e5 d4 b5 d5 b4 d6 b3 axb3 cxd6 Qd4 d5 Qd1 d4 g4 exf4 Nd2 h5 gxh5 a5 Nh3 a4 Nb1 a3 Ng1 a2 Nh3 Nf6 Ng1 Ra3 bxa3 Ng8 Kd2 g5 h4 d5 e4 d3 c4 f3 h6 g4 c5 g3 h5 f2 a4 d4 a5 Bg7 h7 Nd7 e5 Ke7 a6 Qb6 a7 Qb5 a8B Qc6 e6 Qb5 c6 Nf8 h6 Qa4 Bh3 g2 Bb2 f1N+ Kc1 Nh2 c7 d2+ Kc2 Ke8 e7 Bg4 Na3 Ne6 Rc1 a1B Bf3 d3+ Kb1 Bd4 Rc2 Be3 Nc4 Ba7 Be5 B1d4 Na5 Be3 Qf1 d1N Ba1 Kd7 e8R d2 Rb8 Ke7 Rb5 Kf8 Qd3 Ne7 Qg6 Rg8 h8Q Nc6 h7 Nf2 Qh5 d1B Qg7+ Ke8 h8N Ne4 Qgh7 Nd6 Ng6 Ncd8 Bh8 Rf8 Ne2 Bec5 Rf1 Bcb6 Ng1 Be3 Rc6 Rg8 Rf2 Rf8 Rfc2 Rg8 Ne5 Ke7 Qh4+ Kf8 Ng6+ Ke8 Qe1 N8b7 Ne2 Rf8 Ne5 Ke7 Qh1 Rc8 Ng1 Nbd8 Ng6+ Ke8 Nh4 Kf8 Ng6+
4R1bQ/bN5b/3KBb2/4BPp1/BpR1b3/1N1QbP2/k1nrb1NQ/2q5 b - - 0 1 legal: proof: b4 a5 h4 g5 e4 b5 h5 Ra6 d4 c5 dxc5 Rg6 hxg6 axb4 e5 Nc6 e6 Nd4 f4 Nf3+ gxf3 fxe6 Bh3 e5 Bf1 e4 Kf2 e5 Kg3 Ke7 a4 Ke6 c4 d5 g7 h5 a5 e3 a6 h4+ Kg4 d4 a7 b3 a8Q d3 c6 e2 c7 e1B c5 b4 c6 e4 Ra3 d2 Qb8 e3 Qb7 b2 Ne2 h3 Nbc3 b1B Ra8 h2 Na4 Bc5 Qc2 Kd5+ Qf5+ Kc4 Nac3 Kb3 Na4 d1B Bb2 Be4 Be5 Bd2 Qb8 Ba7 Nc5+ Ka2 Nb3 Ne7 g8B Bdc2 Be6 Nd5 Rg1 Ba6 c8N h1B c7 Bc4 Nd6 Bg2 c8Q Qc7 Nb7 Rh2 Qh8 Qc6 Qd6 Bc1 Re8 Qc7 Ng3 e2 Nh5 e1B Be2 Bf1 Bd1 Bfe2 Qfh7 Nb6 Qd3 Be3 Rh1 Rf2 Rh4 Bc3 Qh6 Bcd5 Q6h7 Qc4 Qc7 Bh7 Qd6 Bg8 Kf5 Be4+ Kf6 Qc5 Ke7 Nc4 Rg4 Beh7 f5 Na3 Rc4 Bb1 Nf4 Nc2 Ng2 Ba1 Bg7 Qc8 Qh2 Qc5+ Kd7 Bf6 Rg4 Qc3 Rc4 Qd2 Kd6 Qc1 Qe4 Bf1 Qd3 Rd2 Qg3 Be2 Qh2 Bd8 Bc3 Bf6 Be5 Na1 Qd5 Be4 Qd3 Nc2 N3a5 Na1 Ba4 Nc2 Nb3
2BN3K/1B1R4/2PknR1n/b2P3q/Rp1bb3/p5Nn/2QN3b/2BQb2q b - - 0 1 legal: proof: e4 d5 a4 b5 h4 a5 c4 dxc4 h5 f5 exf5 b4 h6 Ra7 Nf3 gxh6 Ng1 h5 Qb3 h4 Qc2 Bb7 Qd1 Bc8 b3 h5 Ke2 c5 Ra3 c3 Rh2 c4 Rh1 c2 Ra1 c3 Ke1 Rb7 Qf3 Rc7 Qd1 Rc4 bxc4 Rh6 Qe2 Rb6 Qd1 Rb5 axb5 Qb6 Ba3 Qd4 Bc1 Qd8 Ke2 Kd7 Kd3 e5 Ke4 a4 g4 h3 f4 h4 d4 h2 f6 h3 Kf5 e4 Kg6 e3 Kh7 e2 f5 e1B d5 Be7 b6 Bd2 f7 Bd6 f8N+ Ke7 c5 Qe8 c6 Bg3 f6+ Kd6 g5 Nd7 b7 Nh6 f7 Bde1 g6 Nc5 g7 Bf5+ Kh8 Be4 g8B Ne6 Ba6 Bgf2 b8R Bb6 Nd2 Ba5 Ne2 a3 Ra8 Qd7 Bb7 Qe8 Rf1 h1N Ng3 h2 Rf6 Nf2 Bh7 h1Q Bf5 Nh3 Bg4 Bb6 Ra4 Bd8 Rg6 Ba5 Rg7 Neg5 Bgc8 Ne6 Bb2 c1B Ra2 Nd4 Qc2 Qe5 Ne6 Qh5 Nd8 Ne6 Qd1 c2 Ra1 Bf2 Ra2 Bd4 f8Q+ Ke5 Qf2 Kd6 Ndf1 Bg5 Bc1 Bd2 Rb2 Be1 Nd2 Be3 Rb3 Beb6 Rf3 Bd4 Bb2 c1B Rf6 Bh7 Qf5 Bg6 Qfc2 Be4 Nf3 Bce3 Bc1 Bg1 Nd2 Bh2 Rd7+
3n1KN1/QR2Bp1B/RQ4NP/4rb1k/n1b2bnB/2b4p/P5R1/4Qbb1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Bh3 exf4 Bg2 Na6 Bf1 Nb8 h3 g5 Qa4+ b5 Qc2 Ra6 Qd1 Rah6 Qc2 h4 Qd1 Rh5 gxh5 g4 Ba3 g3 Bb2 Qg5 Bc1 Qg4 hxg4 Bd6 Qb3 Bc5 Qd1 Bf8 d4 c5 Kd2 f3 Kd3 b3 Ke4 b2 Ke5 f2 e4 b4 d6 c4 d5 g2 d7+ Ke7 d8B+ Ke8 g5 c3 d6 c2 g6 b3 g7 Nh6 Kf6 Nf5 g8R Rh7 e5 Nh6 e6 Bb7 e7 Be4 Nd2 b1N Nh3 g1B Ba3 c1B Qe1 b2 Bd3 f1B Rg2 Nc6 Nf4 Bb6 Ng6 Nc3 Rb1 Bd5 Ne4 Bf4 Qe3 Ba5 Qa7 Na4 Rhg1 h3 Bc5 Nf5 h6 Rg7 Bf2 Bc4 Bh4 Ne3 Bc2 Bfd3 Rgd1 Bf1 Rd5 Bb4 Ra5 Rg8 Ra6 Bc3+ Ne5 Rg5 Bd3 Nd4 Ng6 Re5 Bc2 Ne6 Bd3 Nec5 Bc2 Nb7 Bd3 Kd7 e8Q+ Kc8 Be7+ Nd8 Re1 b1B Rd1 Bc2 Rb1 Bd1 Rb7 Bg4 Qb5 Bf5 Qb4 Bh2 Qb1 Bg1 Qe1 Ng4+ Kg5 Bg7 Nf6 Re3 Ng8 Bge5 Bb1 Bg3 Bc2 Re5 Bd3 Nf2 Kf6 Bf4 Kg7 Ng4 Kf8 Be4 Rbb2 Bf5 Qb6 Kd7 Qa7+ Ke6 Rb7 Be4 d7+ Kf5 Bc2 Nf6 Rf2 Kg4 Rg2+ Kh5 Bd3 Bf5 Bc2 Nc6 d8Q Ng4 Qdb6 Nd8 Nh8 Bfe6 Bh7 Bf5 Ng6
1N2nr2/4PBB1/QRn5/NP1rq3/B1r2k1K/3Q1NQ1/R1p1rp2/r1n3r1 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 Nc3 g5 Nf3 f5 Nb1 f4 Ng1 f3 h3 g4 Bg2 Bd6 Bf1 Bf4 gxf4 g3 Ra3 Be6 Ra1 Bg4 hxg4 Qc8 Ra5 Qd7 Ra1 Qd8 b4 Kf7 d4 Ke6 Kd2 c5 Ke3 a5 f5+ Kd6 Kf4 h5 e4 a4 d5 c3 g5 c2 e5+ Kc7 d6+ Kd7 b6 c4 f6 Ke6 g6 g2 Kg5 a3 d7 c3 b7 a2 g7 h4 Qe2 h3 Na3 h2 Nc4 Qc8 d8Q Ra6 f7 Ra4 f8Q Qc7 Qdd3 Nc6 b8N Nf6 Bb2 c1N Na5 Ne8 Qf4 c2 Qg3 Rf8 Kh4 Rf5 Rb1 a1R Qa6 Rf8 g8B+ Kf5 e6 Qe5 Qeb5 Ke4 e7 Kf5 Be2 f1R Bf7 f2 Nf3 g1R Bec4 Rd1 Bb3 Rd5 Qd3+ Kf6 Bd4 Re1 b5 Rc4 Rb2 Re3 Ba4 Re2 Qd1 Kf5 Ra2 Ke4 Rg1 Kf5 Rg2 h1R+ Rh2 Ke4 Rh3 Qd6 Bg7 Rg1 Qd2 Qe5 Rh1 Rg2 Rd1 Rg1 Qc3 Rdc5 Rd6 Rd5 Rg6 Nd4 Rb6 Nc6 Qh3 Kf4 Qd3 Qc7 Qg2 Qe5 Qg3+
1n1kq3/1pNn4/1qqR1P2/3Q1QK1/2n1B1p1/B1n1P1Q1/q1b4R/bB1N1R2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 h3 h5 Qb3 g5 Qd1 f4 Bb2 Rh6 Bc1 Rf6 h4 Rf5 gxf5 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Qd7 Qb3 Qe7 Qd1 Qd8 Kf2 c5 d4 b3 a4 h4 e3 c4 d6 c3 a5 b2 a6 c2 a7 h3 a8Q h2 d7+ Ke7 g6 Bh6 d5 Qe8 d8Q+ Kf8 d6 Ne7 g7+ Kf7 d7 Ng8 Nc3 b1N Ba3 c1Q Nb5 Qc2+ Ne2 Qa2 Qc7 Nf6 d8R+ Nfd7 Bg2 Nc3 g8B+ Kf6 Qca5 Bg7 Bh7 Bh8 Rf1 h1Q Nc7 Kf7 Rb1 Kf6 Rb4 Ke7 Qdd5 Qh6 Qab5 Qb6 Qaa5 Be5 Qbc6 Bh8 Qh6 Qc6 Qh4+ Bf6 Qg3 Bh8 Kg1 f2+ Kh2 Bg7 Be4 f3 Qg2 Bh8 Kg3 Be5+ Kh4 Qb6 Rg1 f1N Kg5 f2 Qg3 Nd2 Rf1 Nc4 Qab5 Nf8 Rd6 Nfd7 f6+ Kd8 Rb2 Bd4 Re1 f1Q Rc2 Qh1 Rf1 Qf3 Qf5 Be5 Rcd2 Qh1 Bb1 Qhc6 Qd5 Na4 Bg6 Bb2 Nc3 Ba1 Nd1 Nc3 Rh2 Qcb5 Qfe4 Qa4 Qde5 Qac6 Re6 Nc5 Qef3 Qd5 Rc6 Bf5 Rd6+ Ncd7 Bh7 Qdc5 Qfd5 Bc2 Be4 Qcc6 Qf5
rB1bRq1B/2b5/4N2N/r1nPQpQ1/nP2p3/1N2Bb1k/r6p/RK4Q1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 f4 e6 f5 exf5 e4 Ne7 e5 Ng8 Bd3 Nf6 Bc2 Ng8 Be4 fxe4 b4 Kd7 d4 h5 Kd2 c5 Kc2 a5 g4 c4 d6 Ke6 g6 a4 g5 Kf5 d7 h4 e6 a3 e7 a2 e8Q c3 d5 h3 g7 Nf6 g8Q Bd6 g6 Na6 b6 Nc5 g7 Ra5 b7 Na4 b8B Bc7 Nf3 Kg4 Qe5 Qf8 d8B Nd7 Nbd2 Ndc5 Nb3 f5 Bf6 h2 Nfd4+ Kh3 Qg1 Ba6 Ne6 Be2 Be3 Bf3 Rc1 a1R Qg5 Ra2+ Kb1 Qd8 Qg1 Qd6 Qd8 Re8 g8N Qf8 Qe7 Rd8 Bh8 Rc8 Nh6 Bd8 Ba7 Ra8 Rc2 Bc7 Rg2 Bd8 Rg8 Bc7 Qeg5 c2+ Kc1 Qd6 Re8 Qf8 Bb8 Bd8 Qf2 Bc7 Rd1 Bd8 Qfg1 Bc7 Kd2 Bd8 Ra1 c1B+ Ke1 Bb2 Kd2 Bd4+ Kc1 Bc7 Qef4 Bf6 Qe5 Bfd8 Kb1
2qR2R1/2b2K2/2q2p1Q/1Q4rk/1QN2RpN/Np3P2/B3BPbr/1n2n1n1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 f5 Bb2 f4 Bf6 f3 exf3 exf6 Ke2 Kf7 Ke3 c5 Kf4 b5 h4 c4 a4 g6 d4 b3 d6 b4 d5 c3 a5 c2 a6 c1Q+ Qd2 b2 h6 Qe8 h7 Qa4 a7 Be7 h5 Qd7 h6 Qe6 d7 Qb6 d8R Bd7 d6 Bg4 d7 Nc6 Rh4 Ne5 Nh3 Qc8 Be2 Bf5 Na3 Qca6 Rg1 b1N Qd5+ Qe6 Qb5 Qec6 Rg5 Rb8 a8B Bd6 Rgg4 Qcc8 Bd5+ Be6 Rg1 Qac6 Ba2 b3 Qb4 Rb5 Ng5+ Ke7 Ne4 Kf7 Rg3 Ne7 Nd2 Bh3 Ndc4 Nd5+ Ke4 g5 Rf4 Bg2 Kf5 Nd3 Rgg4 Rf8 h8Q Bc7 h7 Ne1 Rg3 Rg8 Rgg4 Rg6 Qe8+ Kg7 h8N Rh6 Ng6 Rh2 Nh4 Ndc3+ Qe5 Ra5 Qeb5 Kh6 Rg3 Kh5 Rgg4 Bd6 Ke6 Bb8+ Kf7 Bc7 Q5a4 Rd5 Qab5 Rf5 Rg8 Rd5 d8Q Re5 Rg3 g4 Qd2 Rg5 Qc1 Bh3 Rg1 Bg2 Rf1 Nd3 Rd1 Ne1 Bf1 Ne2 Rdd8 Ng1 Be2 Qf5 Qcd2 Qc2 Qdd6 Qf5 Qf8 Qc8 Qh6+
1k3Q2/1BpRNp1R/1q1B4/npbq4/rb1Q2n1/1r1P1R2/BQN4P/3b2K1 b - - 0 1 legal: proof: c4 e5 b4 d5 cxd5 a6 b5 axb5 g4 h5 gxh5 b6 a4 Qf6 f4 exf4 a5 Qd6 axb6 Qd8 Kf2 Kd7 e4 g5 e5 g4 d6 f3 h6 Rh7 e6+ Kc6 b7 Nf6 d7 Bg7 e7 Nd5 e8B Bh8 Ra6+ Nb6 Nc3 Bf6 Nd5 Rg7 h7 Be7 h8Q Bb4 Ne2 g3+ Kg1 g2 Ba3 Rg3 Qb2 Rh3 Ra4 Nc4 Ne7+ Kb6 Qda1 Ne5 Nd4 Ng4 Bc4 Nc6 Nc2 Na5 Ba2 Ka7 Qd4+ Kb8 Qab2 Nc6 Ra6 Na5 Rh6 Rg3 Rh7 Ra6 Ng6 Qg5 d8R Qd5 Bc6 Rh3 Rd6 Bf5 Ne1 Bc2 Ne7 Bd1 Nc2 Nf6 Kf2 g1B+ Kf1 f2 Rd7 Rb3 d3 Be1 Bd6 Bb4 Ng8 Ng4 Ne7 Qc5 Bf3 Qb6 Bd5 Nc4 Bf3 Ra4 Be4 Na5 Kg2 Ka7 b8Q+ Ka6 Qf8 Ka7 Qdh8 f1Q+ Kg3 Ne3 Bb7 Qf5 Qhf6 Ng4 Kg2 Bd4 Rf1 Bdc5 Rf3 Qe4 Qfd4 Qd5 Qfg7 Kb8 Kg1 Bc3 Qh6 B3b4 Qf8+
b1r5/K1bQQb1R/3q1R1N/pP1R1p2/3nq1NB/3r4/3p1P1B/kr1N1B2 b - - 0 1 legal: proof: b4 c5 bxc5 b5 cxb6 e5 a4 g5 h4 gxh4 c4 Na6 d4 Nc7 c5 Nb5 axb5 exd4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 g4 a5 e4 d5+ Kd3 h5 g5 f5 g6 h3 b7 h4 b8B+ Qd6 g7 h2 c6 h3 c7 Be6 c8R Ne7 g8N Nc6 Bg5 Bf7 Nc3 Bh6 Bd8 Bf4 Bh4 Bg3 Nh6 Rd8 Bc7 Rd7 Rf8 Rc8 Qe2 Bf4 Nd1 Bg3 Kc2 d3+ Kb3 Kd4 e5 d2 e6 Be5 e7 Rdd8 Nc3 d1R e8Q Bg3 Qd7 Rb1+ Ka4 Bf4 Qee7 Bg3 Nd1 Be5 Ne3 Kc3 Neg4 Kb2 Ne2 d4 Nc3 d3 Ra3 d2 Nd1+ Kc1 Re3 Nd4 Bb8 Bf4 Re5 Bg3 Rd5 Be5 Nc3 Kb2 Nd1+ Ka1 Bc7 Bg8 Rf6 Bf7 Rg1 h1B Rg3 h2 Rh3 Bf3 Bb8 h1Q Bc7 Nc2 Bb8 Bb2 Kb3 Bg2 Bc7 Be5+ Kc4 Nd4 Rh2 Qe6 Kc5 Bf3 Rd6 Ba8 Kb6 Qe4 Ka7 Bf4 Rd5 Bg3 Bb6 Bc7 Bc5 Q6e5 Bd6 Qe6 Be5 Qd6 Rh3 Rg8 Bh2 Rg6 Ne5 Rg3 Neg4 Rd3 Bg5 Ne2 Ng8 Bc6 Rh7 Ba8 N8h6 Nd4 Bh4
1k3r2/1bQ5/qq1p3N/1Qp1B1PN/R3q1RN/bpR4n/Br2bP2/KB6 b - - 0 1 legal: proof: h4 b5 d4 c5 c4 f5 e4 a5 exf5 g5 d5 Nc6 dxc6 gxh4 b4 axb4 cxb5 Ra6 Bc4 Ra5 Bf1 Ra8 Kd2 h5 Kc2 e5 Kb2 e4 g4 e3 a4 h3 f6 d6 a5 h4 f7+ Ke7 a6 e2 b6 e1Q c7 Kd7 b7 h2 b8Q h3 g5 Ra7 Qe2 Kc6 Qeb5+ Kd5 Nf3 Qee7 Rg1 h1Q Ra4 h2 Bd3 Nf6 Nbd2 Qe2 Rg4 Rb7 a7 Nh5 a8B Nf4 Bb1 Nh3 Nh4 Qhe4 Ka1 h1B Bb2 Bf3 Nf1 Bg7 Ng3 Rf8 Nh5 Qf1 Qa7 Be2 Be5 Ke6 Qaa5 Rb8 Qab6 Bb7 c8N Qc7 Qa7 Qb6 Ne7 Bh8 Ng8 Bf6 Qba6 Kd7 Nh6 Kc8 Qb5 Bh8 Bc3 Bd4 Bb2 Be3 Be5 Bc1 Qaa5 Ba3 Qa7 Rh8 f8R+ Kc7 Rff4 Rbf8 Qaa5 Kb8 Rf3 Rh7 Rd3 Rhf7 Rc3 Rf3 Rc1 Rb3 Rc2 Rb2 Rc3 Ba6 Bd5 Bb7 Ba2 b3 Rc1 Qd1 Rc3 Qdd3 Qd7 Qda6 Qab5 Bd1 Qf7 Be2 Qc7+
5q2/Qrn2BRR/1rQ1P2B/1Pr2p2/7b/2RKQ3/1N2Bprp/nkr4N b - - 0 1 legal: proof: a4 d5 c4 e5 cxd5 b5 f4 exf4 axb5 Be6 Ra4 Bd7 Ra1 Bc8 h4 a5 h5 a4 h6 a3 Nc3 Bf5 Nb1 Bc2 Rh2 gxh6 Rh1 Ba4 b3 h5 bxa4 h4 e4 Kd7 Ke2 Kd6 g4 Kc5 d4+ Kc4 e5 c5 d6 h5 g5 f5 d7 h3 g6 h4 d5 h2 d6 h3 e6 a2 g7 Ra6 a5 Nc6 Qd4+ Kb3 Kd3 c4+ Kd2 f3 Qe3+ c3+ Kd3 f2 Be2 c2 Na3 Nf6 g8B Be7 Nc4 Qf8 d8Q Rh7 d7 Nd5 Qc8 Rb6 d8R Nd4 a6 Nc7 a7 Bh4 a8Q Rd7 Bd2 c1R Nb2 Rc5 Rc1 a1R Bf7 Ra4 Qab7 Ka2 Rc3 Kb1 Qa7 Rb4 Qca8 Nc2+ Qd5 Re7 Qc6 Na1 Rd4 Rbc4 Rg4 Ra4 Rg7 Rg4 Nf3+ Rg1 Ng5 Rc1 Ne4 Rg1 Bc1 Rg2 Rg1 h1R Ng3 h2 Rd1 Rhg1 Nh1 Rg4 Rh7 R1g2 Rg1 Rgc4 Ra3 Rc2 Bd2+ Rc1 Rc3 Nd5 Qe5 Reb7 Bh6 Nc7 Qe3 Rg5 Rg4 Rg8 Rf4 Rgg1 Rg4 Rg2 Rgg7
5b2/p2Q2r1/Bbb5/1pB3q1/2rr1nPP/R4pR1/1r1R2NN/QQNK3k b - - 0 1 legal: proof: d4 b5 g4 h5 a4 e5 dxe5 c6 b4 Nh6 axb5 Ng8 b6 Qe7 b5 cxb5 Nd2 Qf6 Nb1 Qd8 f3 hxg4 Ra3 g5 Ra5 g3 Ra2 g4 Ra1 g2 Bf4 g3 Ra4 Nf6 Bg5 Ng4 fxg4 Nc6 Ra1 Ne7 Bc1 Ng8 c4 Ke7 h4 Ke6 e4 d5 b7 f5 b8Q d4 c5 f4 c6 d3 c7 Nf6 Rh3 Bb4+ Nd2 Bd7 c8N Ng8 Nf3 g1R Ba3 g2 Nb6 Bc8 Nh2 Ba6 Nd5 Qg5 Qb1 Ne7 Rg3 Rg8 Ne3 Rg7 Kd1 Nd5 Nb3 d2 Nc1 Bb7 Qh8 Bf8 Bc5 Bc6 Ra6 Rh1 Ra3 g1B Ng2 Rc8 Bc4 f3 Bb3 Kf7 e6+ Kf6 e7 Nf4 Be6 Ke5 e8R Rc7 Rd8 Bd4+ Nf1 Rh2 Bc8 Bf2 Ba6 Rc8 Be7 Bb6 Bd6+ Kd4 e5 Rcc7 e6 Rc8 Kc2 d1R Bc5+ Ke5 e7 Rd4 Qg8 Ke4 Qga2 Rc7 Qaa1 Rc8 Nd3 Rc7 Kd1 Rc8 Ne1 Rb2 Nh2 Ke3 e8Q+ Be4 Bb4 Rcc4 Qd7 Bc6 Be7 Re4 Nc1+ Kf2 Ng2 Kg1 Bc5+ Kh1 Rd3 Red4 Rd2 Ba5 Re8 Bd8 Re3 Bb6 Ra3
R2n4/3q1rn1/n1P2R2/1qNN2B1/Np1b2B1/2QQn2p/B1p1KbkP/Q7 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g3 f5 g4 fxg4 Kd2 c5 Bb2 b5 Bc1 Ra3 Ke1 Rb3 cxb3 c4 Bh3 c3 Bf1 Bb7 Nh3 Bd5 Ng1 Bc4 bxc4 Qg5 Bb2 Qf6 Bc1 Qd8 f4 Ke7 a4 Ke6 e4 d5 c5 g5 c6 h5 a5 d4 a6 c2 a7 h4 a8B h3 Ra3 g3 Bd3 b3 Nc3 g2 Nge2 g1N Bb7 g4 Ra8 g3 Nd5 g2 Bc4 b2 Nec3 b1Q Bc8+ Qd7 Na4 d3 Ba2 Ne2 Rf1 g1B Be3 Qb2 Qa1 Ng3 Bc1 Rh7 f5+ Kf7 f6 Kg6 e6 Kh5 e5 Kg4 e7 Rf7 e8N Nf5 e6 d2+ Ke2 d1N e7 Na6 Nd6 Bg7 e8Q Nde3 Qe5 Ngh6 Ne4 Bf2 Qc3 b4 Qd3 Qe5 Nec5 Qb8 Bd2 Qb5 Qc3 Bh8 Bc1 Ng7 Qa1 Ng2 Bg5 Ne3 Qc3 Rf8 Qa1 Nf7 Qc3 Nd8 f7 Nh5 Qa1 Bd4 Qc3 Ng7 Qa1 Re8 f8Q Re7 Qf6 Rf7 Qe5 Bg3 Rf6 Bf2 Qc3 Qf5 Kd2 Kf3 Bd7 Kg2 Ke2 Qe6 Bc8 Qd6 Bg4 Qd7 Qa1 Bc3 Qd4 Bb2 Q4c4 Bd4 Qcc3
1b2r3/Q1Rq3p/N1r2Pb1/2q5/n1Qp1Kpb/R7/NbPQB3/1N1B2kB b - - 0 1 legal: proof: e4 b5 h4 c5 a4 d5 axb5 g5 hxg5 c4 d3 cxd3 g4 f6 g6 d4 g5 Na6 g7 Nb4 g6 Nd5 Bg5 fxg5 exd5 Qb6 Ne2 Qc7 Ng1 Qd8 b4 Kd7 f4 Kd6 Kf2 a5 Kg3 e5 b6 e4 b5 Kc5 b7 a4 b8Q e3 b6 a3 d6 d2 b7 a2 f5 e2 f6 Kd5 d7 Ke4 Rh5 Ke3 Qa7 Ne7 b8N Nd5 g8B Nb6 g7 Na4 Bc4 e1B+ Kg4 Kf2 g8B Ba6 Bfe2 Bd6 Bgd5 Re8 Bh1 Re6 Qc1 d1Q Qd2 Be5 Rh3 Rc6 Ra3 Qc1 Be6 Bd3 Na6 Bb8 Bd1+ Kf1 Bc4 Bh4 Ne2 Bg6 Nec3+ Kg1 Bce2 Qe8 d8Q Qd7+ Kf3 Qb2 Qh8 Qb4 Qg8 Qbe7 Qc4 Qc5 Qc7 g4+ Kf4 Qc8 Rb3 Qd7 Rb7 Ba7 Qb6 Re8 Rc7 Bb8 Qa7 Rc8 Na3 Rf8 Rb1 a1B Rb3 Rc8 Na2 Re8 Nb1 Bb2 Ra3
3K1k2/Q3r2q/r5Br/P1PQNBpp/2n3pN/1qB2qQ1/1RR2R1b/2q5 b - - 0 1 legal: proof: d4 a5 h4 d5 e4 c5 b4 g5 h5 Be6 g4 axb4 dxc5 d4 Ba6 f6 Bf1 Bd5 exd5 Nd7 Bd3 Ne5 Bf1 Ng6 hxg6 f5 Ke2 fxg4 Kd2 Qc8 Ke1 Qd8 Ke2 h5 Kd3 e5 Kc4 b6 Kb5 e4 Kc6 b3 a4 b5 c4 d3 f4 e3 a5 b4 d6 b2 f5 b3 f6 d2 g7 e2 d7+ Kf7 Nf3 e1R Ne5+ Ke6 f7 Ke7 Ra2 Qe8 Kc7 Rh7 d8Q+ Ke6 c6 Re4 c5 Rd4 Qf3 d1Q Bd3 Ra6 Qg3 Nh6 g8Q Qf3 Bg6 Re4 Qd5+ Ke7 Bd2 Nf5 Qg7 Ne3 Rc1 Rh6 Bc3 Nc4 Nd2 b1Q Rcc2 Qc1 Rab2 Qa8 Qh7 Qa7+ Kc8 Bg7 c7 Kf8 Kd8 Re3 c8B Re2 Nd3 Re7 Bcf5 Bd4 Ne5 Bg1 Bc8 Bh2 Bcf5 Qe2 Ndf3 Qee3 Nh4 Qf3 Rg2 Qb7 Rbc2 b2 Rgd2 b1Q Rb2 Nd6 Rdc2 Qb3 Bd3 Qf6 Re2 Nc4 Bge4 Qf5 Rg2 Rea7 Rgd2 Qb1c2 Rg2 Q2d1 Rgd2 Qg6 Rdc2 Qg8 Bg6 Qf1 Kc8 Ke7+ f8R+ Qg7 Rf3 Qe2 Bdf5 Kf8 Rf1 Qf3 Kd8 Qg8 Qc7 Qh7 Rff2 Rb7 Qb8 Re7 Qa7
2r5/3Q2K1/r4r1B/p1B1PN1R/b1Q1NkNq/q1P1p1b1/3p2r1/2QR1r1B b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 d5 axb5 g5 Kd2 gxh4 Ke1 d3 Bf4 e5 Bc1 d4 f3 Ne7 f4 Nd5 exd5 e4 Qg4 Nc6 Qd1 Ne5 fxe5 Bh3 Kf2 Bg4 Ke1 Bc8 Kd2 Ke7 b4 f5 g4 a5 c3 h5 d6+ Ke6 g5 h3 g6 h2 b6 f4 g7 Kf5 g8N f3 b7 f2 b8B h4 b5 h3 d7 Be7 b6 Bb7 Nh6+ Kf4 Nf5 Rg8 Bd6 Bh4 Bc5 Rc8 Bg2 f1R Nf3 Bf2 Rg1 h1Q Nh2 Re8 Ng4 Qe7 d8Q h2 Qd7 Bc6 b7 Rg8 b8Q Bg3 Qb4 Ba4 Qc4 Rf3 Qc2 Rg6 Rd1 Ra6 Ra2 Qh4 Rb2 Qg1 Bh1 Qf1 Rb6 Qg1 Rg6 Rf1 Bf3 h1R Rg5 Rh2+ Bg2 Bf2 Bh1 Rg2 Bf8 Rf6 Bca3 Qgh2 Bac5 Ra6 Bh6 e3+ Kc1 Rf6 Nd2 Bg3 Ne4 d2+ Kb2 d3 Qc1 Bc6 Kb3 Qg1 Qcf7 Ba4+ Kc4 Qf2 Kd5 Qe2 Re1 d1R Qg8 Rd2 Rd1 Rb2 Qgf7 Rbb6 Qfe6 Ra6 Qec6 Rf7 Ke6 Rf6+ Ke7 d2 Qcd5 Qb5 Qc4 Rfb6 Kf7 Qb3 Kg7 Rf6 Qcf7 Qb4 Qc4 Qa3 Rh5+
2R3K1/1Q4b1/1R1NRk1p/1N3B1q/q1b1b1Q1/r3P2P/qNpQ1p1b/3rB3 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 dxc4 Ra3 Nc6 Ra6 Nd4 Ra2 exf4 Ra4 f3 Ra2 f4 Ra1 Nf5 gxf5 Be6 Bg2 Bd7 Bf1 Bc8 Kf2 Ke7 b4 a5 d4 g5 e3 c5 f6+ Ke6 h3 a4 d5+ Kf7 b6 a3 b5 g4 b7 c3 b8R c2 d6 h6 b6 a2 d7 c4 b7 c3 Na3 Bg7 Ne2 Qa5 d8N+ Kg6 f7 Rh7 f8Q Bd7 Nd4 Nf6 Nc4 Nd5 Nb5 Bc6 Qg8 Nc7 Bd3+ Be4 Rc8 Kf6 b8Q Ne6 Bd2 c1Q Qb7 c2 Be1 Qca3 Nf7 Q3a4 Qd2 Ra6 Rb1 a1Q Rg1 Q1a2 Nfd6 Rh8 Nb2 g3+ Kf1 f2 Ke2 g2 Rf1 Bg6 Kf3 g1B Kg4 Be4 Kh5 Bh2 Rg1 f1B Rg5 f3 Re5 Ng5 Qc4 f2 Qcb4 Rd8 Qc4 Bc6 Bf5 Ne6 Qg4 Rd7 Qg2 Bc4 Qg4 Ke7 Kg6 Be4 Kh7 Kf6 Nf7 Rd3 Kg8 Ra3 Nfd6 Rc6 Nd1 Rc5 Rb4 Rd5 Nb2 Rdd3 Nd4 Qd5 Rb6 Qc5 N4b5 Rd4 Qa5 Rd1 Qd2 Qd4 Kh7 Bf3 Qg2 Qh4 Kg8 Be4 Qg4 Qh5 Rxe6+
q2N4/1p4b1/np2P1KN/3Nkp1Q/qq3R1P/R1Q1b1Bb/6b1/1Q2nBB1 b - - 0 1 legal: proof: c4 e5 f4 exf4 b4 h5 g3 g5 b5 d5 cxd5 h4 b6 axb6 Bg2 g4 Bf1 Ra3 Qc2 h3 Qd1 Rh4 gxh4 g3 Qc2 g2 Qd1 Rg3 hxg3 Bd7 Kf2 Bg4 Ke1 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 c4 a4 h2 a5 f6 a6 c3 a7 f3 a8Q f2 g4 c2 g5 Qc7 g6 Ne7 g7 Qd7 g8Q Qa4 Qa5 Qc6 Nf3 g1B Qg6 Qb5 Be3 c1Q Qc3 Qa3 Qh5 Bg4 Ne5 Qa8 Nf7+ Kd7 d6 Ke6 d7 Qb4 d8B Ng6 Nh6 Qaa4 Bc7 Qc4 Ra3 Qcb5 Bg3 Ne5 Qdd3 Qa8 d5+ Kd6 Kf4 f5 Kg5 Bh3 Bd4 Qc4 e4 Na6 Be3 Qb4 Qdd1 Kd7 d6 Ke6 d7 Nd3 e5 Bg7 Kg6 Ne1 Qdc1 Kd5 d8N Bg2 e6 Qa4 Bb5 f1B Q1b2 Bh3 Qbb4 Bfg2 Bf1 Bf2 Rg1 h1Q Qbb2 Be4 Rg2 Bg1 Rf2 Beg2 Rf4 Kd6 Bd4 Be3 Qa2 Bd2 Bg1 Be3 Qc6+ Ke5 Nc3 Qb4 Nd5 Qa4 Qb1 Qb4 B1h2 Qg1 Qc5 Qf2 Qcc1 Qc2 Bg1 Qca4 Qc3+
b1Qr1B2/2b4p/pnPQ1N2/6K1/1P2N1b1/1kb3BB/1b3p1R/RR2Nnb1 b - - 0 1 illegal: No proof kernel
5N2/3K3N/Q1P1Pk2/1BNQr3/2pRRrpB/p1n2bb1/5pn1/1Rn3qB b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 axb5 e5 c4 exf4 g4 d5 gxh5 Kd7 Qb3 Bd6 bxc5 Bf8 c6+ Ke7 c5 Ke8 Qc4 dxc4 Kf2 Ke7 Kf3 g5 Ke4 f5+ Ke5 a5 h4 a4 d4 f3 e4 f2 c7 a3 c6 g4 b6 f4 d5 f3 b7 Ra6 d6+ Kf7 h6 Ra8 h5 Be7 h7 Qd7 h6 Qd8 d7 Nf6 Nd2 Nd5 Bg2 f1N Nb3 f2 Nf3 Kg6 Ke6 Rf8 h8R Bc5 e5 Rf5 h7 Rh5 Bg5 Bf8 Bh4 Ra4 Nc5 Rh6 Rd1 Na6 b8N Qg5 Rd4 Bd6 Re8 Nfe3 h8Q Nab4 Rb1 Ra5 Bh1 Nd3 Qf8 Qf4 Ng5 Qh2 Qf3 Nc3 Qd5 Ng2 Re7 Bb7 d8Q Nc1 c8B Qg1 Nbd7 Rh7 Qc7 Rf7 Qb6 Rf4 Qa6 Bc7 Re8 Bb8 Nf8+ Kg7 Bd7 Bc8 Ke7 Rb5 Bf5 Ra5 Bc2 Bf5 Ba4 Be4 Bb5 Bf3 Kd7 Bd6 e6 Kf6 Rb8 Nb3 Re1 Nc1 Rb6 Rf5 Ree4 Bg3 Ba4 Rf4 Rb3 Rb5 Rb1 Rb2 Bb5 Rd2 Re3 Rd3 Re1 Re3 Re2 Re5 Re1 N3a2 Ree4 Nc3 Ngh7+
1NBbBb2/2n2p1K/P1RN3N/k3BR1n/1rP4R/4p1p1/1r1Q2p1/1Qb4q b - - 0 1 illegal: No proof kernel
1n4r1/1b4Rr/1K4pp/2NqB1PB/1n2p1kN/p2Q2Bq/3NPR2/3bQ1Q1 b - - 0 1 illegal: No possible last move
3K2Q1/1pN3B1/k1P2RRn/5B2/1Pb1pnNQ/1r1pn1Qq/1pq3R1/1N4q1 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 exf5 a5 b4 a4 d4 cxd4 h4 Ra5 f6 Rb5 f5 Bg7 Qf3 Rd5 Qb3 axb3 Kd2 Qa5 f7+ Kd8 Ke1 Kc7 Nd2 Bh6 Nb1 Kc6 f6 Rf5 gxf5 g4 Bg5 Qb6 Bc1 Bg5 hxg5 Qd8 Kf2 Kb6 Kg3 e5 Kh4 h5 f8Q d5 a4 e4 c4 g3 g6 g2 Kg5 h4 a5+ Ka6 g7 b2 c5+ d3 c6 h3 Rh2 d4 Qe7 Qd5 f7 Qc4 f8Q d2 f6 d1Q f7 d3 Nf3 g1N Rg2 h2 Ne5 h1Q Ng4 Ka7 a6 Nh6 Kf6 Qdc2 g8Q Qa2 Qfg7 Ne2 f8R Qh3 Bg5 Kb6 a7 Ka6 a8N Be6 Qg6 Nf4 Nc7+ Kb6 Qd8 Na6 Ke7 Bc4 Bf6 Qa5 Kd7 Qc5 Bg7 Qg1 Qh4 Ka7 Kd8 Kb6 Ne6 Nc7 Rf6 Ncd5 Nc7 Ne3 Ra5 Qc1 Rg5 Qc2 Qgh5 Ka7 Qg3 Kb6 Qhh4 Ka7 Ke7 Kb6 Rgg6 Ka7 Qf7 Ra8 Qg8 Kb6 Be2 Ra3 Kd8 Rc3 Nh2 Ka7 Bg4 Rb3 Bf5 Kb6 Ng4 Ka7 Ne8 Ka6 Nc7+
n2rb1QK/N2k2p1/P1Bp4/Br3N2/2qNpBR1/q1rp4/1PQ1rR2/5Q2 b - - 0 1 illegal: No proof kernel
b2R1N1R/qb3P1p/NB1Q3P/b3q3/pQ1BRkr1/3B4/1nQpbK1p/8 b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 axb5 f5 h4 a5 h5 g5 Qf3 e5 Qh3 f4 Qh4 Nc6 Ra2 Nce7 Ra1 gxh4 f3 Nf5 exf5 e4 Bc4 e3 Bf1 Ra6 Ke2 Re6 Ke1 Re4 fxe4 Bb7 Nh3 Ba6 Ng1 Bc8 c4 Ke7 b4 Kf6 g4 Ke5 h6 d5 c5 h3 f6 h2 b6 e2 c6 f3 b7 d3 b8Q+ Qd6 b5 a4 g5 d4 f7 d2+ Kf2 d1B b6 d3 b7 Be6 c7 Bg7 c8Q Bc4 g6 Ne7 Nh3 Nf5 Nd2 Bcb3 Nf4 Ne3 Qc2 Ba2 Nb3 Bf6 g7 Ng2 g8Q Qc7 Qg3 Be7 Bb2+ Kd6 Nc5 Rg8 Bd4 Rg4 Nfe6+ Nf4 Na6 Bd8 Nf8 Bd5 Ra3 d2 Re3 Bc6 e5+ Kd5 Rd3 Ke4 e6 Qe7 Qd6 Ba5 b8B Ba8 Qh4 Qa7 e7 Bb7 e8R+ Kf5 Ke3 f2 Bc7 e1Q+ Be2 f1B Bcb6 Bh3 Rd8 Bf1 Rg1 Bfg2 Qhe7 Bgf3 Qb4 Ba8 Qed6 Bfb7 Rb3+ Nd3 Rg3 Rf4 Rg8 Rg4 Rh8 Kg5 Rc3 Nb2 Ra3 Qh4 Rc3 Qh5 Bd3 Bdf3 Kf2 Be2 Qc6 Kf4 Qcd6+ Qe5 Bg6 Bc6 Re3 Bd5 Bd3 Bdb7 Re4+
q7/1RN1q1p1/2p1Q1p1/2Q1rRNN/p1K1b1PB/b4b1B/k2BP1b1/3r3R b - - 0 1 legal: proof: b4 e5 f4 exf4 c4 b5 cxb5 c6 a4 Qg5 d4 Be7 d5 Qg6 b6 Nf6 a5 Ng8 d6 Na6 b5 Qf6 Qd3 Qg5 Qg6 Nc7 dxc7 hxg6 Ra2 Bf8 Ra1 Qd8 b7 Nf6 Nd2 Nd5 Nb1 Nb6 axb6 Qf6 Nh3 Qe7 Ng1 Qd8 Kd2 Ke7 Kd3 Ke6 b8N Kd5 g4 a5 h4 f5 b7 a4 b6 f3 h5 f4 h6 f2 h7 f3 Bg5 Ra5 Bh4 Ba3 Nd2 Qe7 Na6 Rd8 h8Q d6 b8B Bf5+ Kc3 Be4 c8Q Rb5 Bg2 f1B b7 f2 Ngf3 Rd7 Bh3 Bg2 Qhd8 f1Q Ng5 Qff8 Rab1 Qg8 Rb3 Bef3 Nf1 Qge8 Ng3 Rc5+ Kd2 Kc4 Qb6 d5 Bf4 d4 b8R d3 Rb7 Rdd5 Qf5 Qa8 Qe6 Rb5 Ke3 d2 Nh5 d1B Nc7 Bc2 Qa7 Ra5 R3b5 Bce4 Qb6 Kc3 Qa7 Rd6 Rf5 Re5 Qd4+ Kc2 Qdd5 Rd7 Kd4 Rd8 Kc4 Rd6 Ra7 Kb2 Qc5 Rd1 Bd2 Ka2 Rb7
1Q1R4/1N3Kp1/3p2B1/B1P2RRQ/1pr3qq/2q2kPq/1p4qn/2BNnN2 b - - 0 1 illegal: No proof kernel
2K1b2B/k2NNp2/prQpR2R/1Qb4N/3Q4/PpB5/3nP2p/1r1r2Bn b - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 Qg5 d4 cxd4 b3 Qe7 b4 Qc5 bxc5 Kd8 Kd2 Ke7 Ke1 Ke8 h4 h5 gxh5 g6 h6 Kd8 h7 Ke8 h5 Ne7 h6 Nd5 Bg2 Ne7 Bf3 Ng8 Bh5 gxh5 Kd2 Kd8 Kd3 Kc7 Ke4 b5 Kd5 Kb7 c4 h4 c6+ Kb6 e6 h3 c5+ Ka6 c7 d3 c6 b4 e7 d2 Kd6 b3 Nc3 Kb6 Na4+ Ka6 Nb6 Bg7 e8Q Bb7 c8Q Ne7 Kc7 Rf8 h8B Bd4 h7 Bc5 Bc3 Nf5 h8B Ng3 a3 d6 Nd7 Rg8 Kd8 Rg5 c7 Rd5 Rh2 Nh1 Rf2 Rd3 Rf6 h2 Rh6 Rf3 Nh3 Rf1 Nf4 Rg1 Qe5 Re1 Nh5 Nc6+ Ke8 Na5 Kd8 Nc4 Qd4 Ne3 Qc2 d1R Qb8 Nf1 c8N Bf3 Ne7 Bc6 Be3 Nd2 Bg1 Rb1 Kc7 Red1 Qe8 Rb8 Re6 Rb6 Kc8 Rb2 Qce4 Bb5 Qc6 Ba4 Rc1 Rb1 Rc2 Nf3 Rd2 Bb5 Rd3 Nd2 Rf3 Ba4 Rff6 Bb5 Kd8 Ba4 Qb5+ Kb7 Rh6 a6 Qbc4 Bc6 Qb5 Ka8 Kc8 Ka7 Qg8 Rdc1 Qg2 Rd1 Nf8 Be8 Nd7 Re1 Qf3 Red1 Qfc6
B2R1q2/ppRnNp1p/nr4P1/QP4n1/1N2q2k/1p1QB3/R1b5/3NKQ2 b - - 0 1 illegal: Other
BB2BN2/1p1N4/b3b2R/pb2r2p/P2K1pP1/3nr2R/Q2pQ1k1/3Q1b1R b - - 0 1 illegal: No proof kernel
7b/1b3pN1/2B1p1P1/NK2n3/ppnB2QR/Pb1k1R1p/NRnB2b1/2Q5 b - - 0 1 legal: proof: g4 g5 d4 c5 b4 cxb4 h4 Nc6 c4 Rb8 f4 gxf4 h5 Qb6 c5 Ra8 g5 Nb8 Ba3 Qd6 Bc1 Qg6 hxg6 Bg7 Nc3 Bh6 Nb1 Bf8 g7 h5 d5 a5 e3 b5 e4 Rh6 Qd2 Rc6 dxc6 d5 Qc2 d4 Qd1 Ra7 Qc2 Rd7 Qd1 Rd5 exd5 Bd7 Ne2 Bg4 Ng1 Bc8 Ke2 e6 Kd3 Ke7 a3 a4 c7 h4 c6 Kd6 g6 Kc5 d6 f3 d7 b3 d8B f2 Nc3 b2 Rb1 b4 Bd2 Na6 Qg4 Nb8 Nf3 Nh6 g8N Bb7 c8Q Nf5 c7 Bh6 Bg2 Nc6 Ne5 Bg7 Bf6 Ne3 Ne7 Nc2 Na2 Bh8 Nf5 f1N Be4 Nfe3 Ng7 Nc4 Rhf1 h3 Rf3 Nd6 Nc4 Ne5+ Ke2 Kb5 Na5 Ndc4 Bc6+ Kc5 Rbf1 b1B Rb3 Ne1 Rb2 Be4 Rf5 Bg2 Rf3 Nd7 Be5 Nc2 Kd3 Kb6 Ke4 d3 Bd4+ Ka6 Qb8 Nde5 c8R Na1 Qc7 Nc2 B2c3 d2 Rf8 d1B Bd2 N2e3 Rd8 Bb3 Rd5 Nd3 Rh5 Nde5 Rh4 Nc2 Bg1 Na1 Kd4 Nc2+ Kc5 Ne1 Be4 Nc2 Bd4 Nb6 Kd6 Kb5 Qc3 Nbc4+ Kc7 Na1 Qc1 Nc2 Bc6+ Ka6 Bf4 Nd6 Be4 Kb5 Bfe3 Na1 Bd2 Nc2 Nc6 Kc4 Kb6 Nf5 Ka5 Ne3 Bd5+ Kd3 Kb5 Bf1 Na5 Bg2 Rf5 N3c4 Bc6 Bh1 Rf1 Bg2 Rf3+
1KbB2r1/2Q2q2/B1QR3B/3qrRNr/n1n3NP/1k1b4/nRrP2N1/2b1r3 b - - 0 1 illegal: No possible last move, all moves rejected
3br1nK/2B5/1Nn4B/1qqnnN2/QPr2QR1/qnR4r/6PQ/2k2BRb b - - 0 1 illegal: No proof kernel
nqq1BQ1K/2n2b2/1q1q2QN/3n3P/6N1/b1rB3R/2qPNBkr/4QR1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 b4 Kf6 e4 Kg5 d6 Kh4 h3 f5 e5 g5 d7 c5 b6 a5 e6 g3+ Kf3 c4 b7 a4 e7 a3 e8B g4+ Ke2 c3 Kd3 a2 Kd4 f3 Ke5 f4 b5 g2 b6 Kg3 h4 f2 Qe1 c2 Bb2 c1Q Nc3 f3 Bb5 Na6 b8N Ba3 b7 Nf6 Qe2 f1N Na4 f2 Qd1 Nd5 Bc4 Nb6 Bb5 Ne3 Nh3 g1Q Bd4 f1R Nc3 Qh2 Nf2 Ned5 Ne2+ Kf3+ Kf5 g3 Kg6 g2 Rb1 g1Q+ Ng4 Qgg3 Bf2 a1Q Qc2 Qa2 Nc6 Qb3 Ncd4+ Kg2 Nf5 Re1 Qc6 Qcc2 Bd3 Qgc7 Qf6 Qhd6 Rc1 Rg1 Rf1 Ra7 Qe6 Na8 Qf6 Q7c6 Qe6 Qbb2 b8Q Rc7 Qb7 Qbb1 Kg7 Qcb5 Qg6 Rc3 Qb6 N6c7 Qb7 Rh5 Nfh6 Qbc5 Qb2 Qcc6 Qc1 Qb8 Qe1 Qcb6 Rh3 Rh1 Rf3 Q8f6+ Kg8 Qf5 Kh8 Qfe6 d8Q Qf5 Qdf6 Be6 Qf8 Bf7 Re3 Qfc8 Rf3 Rf5 Re3 Rf3 h5 Rfh3 Rf3 R3h2 Rh3
4K1k1/QRBR4/r1n1nq1r/b3q1P1/bn2B3/2QR2nP/2Q2Nr1/3BnbN1 b - - 0 1 illegal: No proof kernel
Q2b2n1/5qN1/KN1nBn1Q/4P3/R1R3rr/B1PR3Q/bnk1n3/r2Nb2q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 h4 Ke4 b4 f5 c3 g5 e3 a5 b6 d5+ Kb5 g4 h6 f3 h5 g3 h7 f2 h6 d3 b7 g2 Qe2 f4 Bd2 a4 Qd1 f3 Qc2 d4 Qa2 a3 Ne2 g1B Bg2 f1N Bc1 d2 Bh3 Kd3 e4 d1Q e5 f2 Nd2 Be7 Ng3 Ra4 Nf5 Ng3 Ne4 f1N Ng7 Ne2 Be6 Nd7 b8N Nd2 Rh4 Ndf6 Nd7 Qf8 Nb6 Bf2 Rg4 Be1 Nf2+ Ke3 Qd5 a2 Ba3 d3 Rc4 Nde4 Qa8 Qc1 Nd1+ Kd2 Qa5 Bd7+ Ka6 Nd6 b5 Rb4 Qa4 Bd8 Qa5 Qf7 Qa4 Ne7 Qa5 Rg8 h8Q Kc2 h7 d2 Bg4 Bc6 Be6 Re8 Qf8 Neg8 h8Q Bd5 Qh3 Re7 Rc7 Rg4 Rc4 Nh6 Qh8 Nhg8 Q8h6 Rd7 Na8 Rc7 b6 Qb1 b7 Re7 Nb2 d1N b8R Rb7 Rbc8 Rb4 Nb6 Rh4 Rd4 Rc4 Rd3 Rcg4 Rc4 Qc1 Rb1 a1R Ra4 Ba2 Qd5 Qf4 Qa8 Qh2 Rc4 Qh1 Ra4 Ne3 Nd1 Nec4 Rbb4 Nb2 Rc4
1b1b1r2/1nrB2n1/1NP2qk1/n3B1qR/B2QQ3/2Kn3R/2PN4/n2rQR1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kd2 h5 g4 a5 e4 d5 b4 f5 e5 Kf7 e6+ Kg6 e7 h3 e8R f3 g5 h4 b6 d4 b7 h2 b5 f4 b6 h3 Nc3 f2 Re1 a4 Re8 d3 Qf3 a3 Ra2 Ne7 Qe3 f3 Qd4 Nd7 b8Q Nc6 b7 Bd6 Qa7 Rf8 b8Q Na5 Nb1 Bb7 Ra1 a2 Qa6 Ra7 Be2 f1Q Qdc4 f2 Kc3 d2 Re3 d1R Qb6 Ba8 Rg3 Rc7 Bf4 Qf6+ Be5 Qg2 Nf3 f1N Qd8 Nd2 Qbb4 Ndb3 Nbd2 Bc6 Rf1 h1N Qg4 h2 Bb5 Qg1 Rh3 Ng3 Ba4 h1N Qge4+ Nf5 Nc4 Nf2 Nfd2 Nd3 Nb6 Qg2 Rb1 a1B+ Rb2 Bd5 c6 N7c5 Qbd4 Qg1 Qe7 Ncb7 Qe1 Bh1 Qe6 Kg7 g6 Qg5 Qed5 Be7 Q5e4 Bd8 Rh5 Kg8 g7 Kf7 g8B+ Kg6 Qg4 Ng7 Be6 Bg2 Qf3 Bh1 Qfe4+ Nf5 Bh2 Nc4 Bd7 Ndc1 Kb4 Nca5 Qg2 Rc8 Qdd5 Ng7 Ra2 Be5 Qd4 Bf4 Ra3 Bb8 Be5 Na1 Rah3 Nd3+ Kc3 Rc7 Qge4+
Qq1b3k/1nr2Nq1/1PbQ4/1B2RQR1/2NrnR1q/K2n1b1P/1Nb1b3/2B5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 b4 a5 c4 f5 Kc2 Kf7 Kb3 Kg7 e4 d5 c5 g4 c6 f3 e5 d3 e6 f4 b6 f2 b7 d2 c7 a4+ Kb2 a3+ Kb3 g3 e7 f3 e8R d4 h3 d3 b5 a2 b6 g2 Re4 Be7 Qe2 d1N Bf4 d2 Qe1 Ra7 Rh2 Bg4 c8Q Nd7 b8N Rc7 Ne2 g1Q Rg2 Nb2 Na6 Qh2 Nd4 Ngf6 Re5 Ne4 Bb5 f1B Na3 f2 Qd1 Nd3 Nc4 N7c5+ Ka3 Be2 Nb4 f1B Qf5 Nb7 h6+ Kg8 Bg5 Bgf3 h7+ Kg7 Rg4 B1g2 Rf4 Qg3 Rc1 Qb8 Rc2 a1Q+ Ra2 Ndc5 Nd3 Rd8 Ndb2 Kh8 Bh6 Bf6 Bg5 Nd3 Bh6 Qh4 Bg5 Kg7 h8Q+ Kf7 Qe8+ Kg7 Qc6 Kh8 Qd6 Qg3 Qa4 d1B Qa8 Bc2 Bh6 Qae1 Ra1 Qef2 Rg1 Bh1 Rg2 Qg7 Rg5 Rdd7 Nc6 Qe1 Ne7 Qh4 Ng8 Bd8 Rfg4 Nef2 Qb4 Qh7 Rg6 Bc6 Bc1 Qf7 Nh6 Ne4 Rf4 Rd4 Rg5 Bhf3 Qd6 Qg7 Nf7+
1q1k3B/bQ2N3/KP1Nq1RP/RR3bq1/r2QB1n1/q4q2/4N1nr/1Br2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 a5 d4 c5 Kd2 g5 Kc3 f5 Kc4 a4 h4 f3 e4 f4 b6 f2 Kb5 c4 h5 c3 e5 f3 e6 a3 b7 a2 d6 g3 e7 g4 d5 c2 Ne2 g2 Rg1 g3 Na3 Nc6 b8Q Ra4 Nc4 Nf6 Qb7 Ne5 Bb2 c1R Qd4 Nd3 Rb1 a1Q d7+ Kf7 e8B+ Ke7 Bf7 Nf4 Bg6 Qa3 Be4 Ng4 Nd6 Qc7 d8R Bf5 Re8+ Kd7 Re5 Kd8 Ra1 Qb8 Kb6 Be7 b5 Rh7 Nc3 Bf8 Bfd3 f1B Ne2 f2 Bb1 Rh6 Re6 Rh7 Rg6 Bh6 Rh1 g1Q Rh3 g2 Rb3 Qh2 Bc3 g1Q Rb2 Bf8 h6 Ng2 Rb4 Qh3 Qe3 Rc7 Bf6+ Kd7 Nf7 Qf3 d6 Nh4 Bd4 Nh2 Bh8 B1h3 Nf4 f1Q Rb3 Qa2 Ne6 Qc4 Be5 Ra7 Bh8 Bf1 Qd4 Qg5 Nf4 Ng4 Rb2 Ke8 d7+ Ke7 d8N Qe6+ Nc6+ Ke8 Rh2 Qab3 Ra4 Qa3 Rb2 Bd6 Ne7 R7c2 Rb3 Rh2 Ne2 Ng2 Rb2 Bb4+ Nd6+ Kd8 Ra6 Qab3 Ra1 Ra3 Raa2 Ba5+ Ka6 Bb6+ Qa4 Ba7 b6 Qbe3 Rb5 Qc3 Rc2 Ra1 Ra2 Qcd3 Qd4 Qde3 Raa5 Ra4 Qa8 Qa3 Qb7
QNq4R/nPBr2R1/bq1n1b1N/3rnq2/2BR2r1/2Q1kP1K/5N2/3Brr2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 Kd6 d4 e5 g5 c5 f3 h5 Kf2 a5 Kg2 a4 g6 a3 b6 h3+ Kh2 c4 b5 c3 g7 e3 b7 a2 b6 c2 Nd2 h4 Qe1 e4 Qd1 e2 Bg2 e1N Rb1 a1Q Nf1 e3 Bb2 c1Q Qd3 e2 Qb3 Ne7 g8B Nd3 Bh7 e1R Qc3 Ne5 Bg6 Nf5 Ne3 Ra4 Bf1 Rh5 Ng4 Bg7 Nh6 Bf6 Bc4 Nbc6 b8N Ba6 b7 Na7 Be8 Rb4 Ba4 Qb6 Bd1 Qaa5 Ba1 Qac5 Rb2 Qg5 Rg2 Qc8 Bb2 Qg4 Ba1 Qe4 Rg7 Rg5 Bb2 Rg4 Bc1 Rb5 Bf4 Ra5 Ne2 Rc5 Nc1 Rc7 Nd3 Rd7 Nf2 Qeb1 Rg1 Q1b5 Rg8 Rf1 Rh8 Q5a5 Kh1 h2 Bg3 Re1 Kg2 Qab5 Kh3 h1R+ Bh2 Qb1 Rg2 Rhf1 Rg1 Kc7 Bf4 Nd6 Bh2 Qf5 Rg3 Qb2 Rg1 Kb6 Rg3 Ndf7 d6 Qbb1 d5 Kc5 Rg2 Qb6 Bg3 Rd8 d7 Nd6 Qa5+ Kd4 Bh2 Rdg8 d8Q Ke3 Qa1 R8g7 Qc3+ Nd3 Qg8 Rd7 Bg3 Ne8 Bc7 Nd6 Kh2 h3 Rg3 Re4 Rg7 Rh4 Kg3 h2 Qd8 h1R Qf8 Nf7 d6 Rf4 Qg8 Rh5 Qd8 Rg5+ Kh2 Rgg4 Kh3 Rd4 Qf8 Rd5 Qg8 Re7 d7 Nd6 d8R Rd7 Re8+ Kf4 Nc6 Qb8 Re2 Qa8 Rd2 Ne5 Qb8 Nab5 Qa7 Qc8 Qa8 Na7 Rd4+ Qe4 Nd3+ Ke3 Nb8 Qf5 Nf2+
1b4qR/k2N1N2/r1NrrrB1/2n4Q/4b3/3BKPrQ/n1r2B1P/b2r2RQ b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 g5 b4 d5 c4 Kd7 c5 Kc7 f3 Kb7 b6 a5 b5 e5 f6 g3 f7 g2 Bb2 g4 Ra2 e4 Bc3 a4 Qc1 e3 Bb2 a3 Qe1 d3+ Kd1 e2+ Kd2 g3 Be5 d4 Nc3 Ne7 Qc1 e1R Ne4 Na6 Ng5 Bf5 Ne2 Be4 Rg1 Nd5 Bf4 Rh6 Be3 Bg7 f8N Ndb4 Bf2 Rf6 Nd7 Qg8 Nf7 Rc8 Rc2 a2 c6+ Ka8 b7+ Ka7 c7 a1R Rc5 Na2 Rh5 Nc5 b6+ Ka6 Rh1 g1B b8Q g2 b7 Bh8 Nc3 Bg7 Nd5 Re3 Ne7 Re2+ Kd1 d2 Nc6 Re8 c8B Ree6 Qg3 Bh8 Nce5 Ka7 Qh3 Bg7 Be3 Bf2 Rg1 Bg3 Rh8 Rf2 Bd3 Bf4 Rf1 g1R Qh5 Rg4 Rg1 Rg3 Kc2 Rfg2 Bf2 d1R Qh3 Bd2 Qh5 Ba5 Qch6 Bc7 Qh3 Bb8 Q6h5 Rdb1 Kd2 Rbb6 Ke2 Rbd6 Kd2 Bc6 Bg6 d3 Ke3 d2 Bd3 d1R Bg6 Be4 Nc6+ Ka6 Nf8 Re7 Bcf5 Re5 Nd7 Ree6 Be1 Rc2 Bf2 Ba7 Nf8 Kb6 b8Q+ Ka6 Qb1 Bb8 Nce5 Ka7 Nfd7 Ra6 Qc1 Rdd6 Qcf1 Rad1 Qfg2 Bb7 Bd3 Be4 Qh1 Rf5 Nc4 Ba1 Nce5 Rff6 Nc6+
b2r2Qb/1nBr1k1Q/2r1rr2/3nPB2/1P1nKN1R/5RN1/rqQ2N1r/3R4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 g4 h5 e4 f5 b4 c4 d4 h3 d6 a4 b6 h2 e5 a3 b7 h4 d7+ Kf7 d5 h3 g5 a2 d6 c3 Qd2 c2 Bb5 Ne7 Qe1 Bg7 Nd2 Na6 b8R Bb7+ Qe4 Nd5 Bc4 Nc5 Ba3 c1R Rb1 a1N Rc8 Nab3 Bb2 Ra2 Nf1 Ba8 Bd3 Nb7 Bd4 Rc6 Bb6 Qc7 Rb8 Rd8 Ng3 Bh8 Rd1 Qc8 Qc4 Qc7 Qc2 Nd4+ Kf2 Qc8 Bc7 f3 Be4 f4 g6+ Kf8 g7+ Kf7 Ba5 Qc7 Bf5 Qb6 Rc8 Qa6 Bc7 Qa3 Rb8 Qb2 Rc8 Re8 d8Q Re6 Ke1 f2+ Kd2 f1R Kd3 f3 d7 f2 Qh4 Re1 Qh7 f1R Rg8 Rf2 Re8 Ref1 Ke4 Rd2 Rd8 Rf3 Rf1 Rfd3 Rf3 Rf6 N1e2 Rce6 Nc1 Rc3 Rd1 h1R Nd3 h2 Nf2 Rcc6 Rc8 Rg1 Rd8 h1R Rf8+ Ke7 d8N Rh2 Rf4 Rf1 Rh4 Rg1 Ngh1 Rgg6 Ng3 Red6 Ne6 Rd7 Nf4 Rfe6 Rd8 Kf7 Rc8 Rgf6 Rb8 Na5 Rb6 Nb7 Ra6 Rcd6 Ra3 Rd3 Rb3 Rc3 Ra3 Rcc6 Rc3 Rd8 Rf3 R6d7 g8Q#
2b4r/KBb2N1Q/PR1RRn1b/nNb4b/1b2rn2/2B2bBQ/2P1k3/1q2Q3 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Ke3 Kf6 Kd4 g5 a4 b5 f4 e5+ Kd5 b3 h4 b2 h5 e4 c6 e3 h6 g3 a5 g4 h7 g2 a6 e2 c7 e1B Nd2 b1B Qf3 b4 Qe3 g3 Ba3 b3 Nh3 g1B Qe8 b2 Ng5 g2 Nc4 Ba2 Bb4 b1N Nf7 Nc6 Bc3+ Bd4 Qe3 g1B Bg2 Bh6 Qc1 Bd2 Qe1 Bh2 Kd6 Qe8 Na3 Na5 Bb7 Bd5 Nb5 Bf3 Ra4 Qe2 Rb4 Qd1 Rg1 Rb8 Rg3 Bh5 Re3 Ra8 Re5 Bdg1 Rd4 Bf3 Kc5 d5 Kb6 Qc1 Bb2 Bb4 Bc3 Bg3 Re3 Rb8 Rd1+ d4 Ka7 Bh5 Be4 Rb6 Bb7 Re6 Re5 d3+ Re3+ Ke7 f6+ Kd7 f5 d2 Bd4 Re7 Re6 Nc3 Rb6 Nd5 Bc3 Re3 Re6 Qb1 Rb6 Nge7 Re6 Ng6 Rb6 Rhe8 h8Q R3e4 Qh7 Bgc5 Nd8+ Bg7 f7 Rh8 f8R Nf6 Qg8 Bh6 Nf7 Ke7 Qg7 Bd7 c8Q Bc7 Qh7 Nf4 Rd8 Be6 Rd5 Ng8 Re5 Kf6 Nfd6 Kg5 f6+ Kg4 f7 Kf3 f8B Nh3 Nf7 Nf6 Bd6 Bf5 Rc1 d1B Re8 Bd7 Bg3 Nf4 Re7 Be2 Rd1 Be6 Rd6 Ke3 Qf1 Bef3 Qc1+ Ke2 Qh1 Bc4 Qch3 Be6 Qg1 Bd7 Ree6 Bc8 Qe1+
1r5N/RBq4r/PrQ1nN2/P4bR1/N3B1r1/bRr3n1/1b1K1Qrr/1k2B3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 g4 Ke7 e4 Kf6 a4 Ke5 g5 Kd4 d3 c5 g6 b5 d6 f5 a6 h5 a5 c4 d7 h3 g7 c3 e5 h2 e6 h4 e7 f3 e8N f4 Be2 f2+ Kf1 b4 Bh5 c2 Ke2 f1R Nh3 f3+ Kd2 f2 Bg6 b3 Nd6 b2 Qe1 Rg1 Nf7 f1R Nf4 h3 Ne5 Rh7 Nh5 Rf4 Nf6 Rfg4 Nc3 b1R Be4 Rb6 Rb1 Qc7 d8Q+ Nd7 Ng6 Nh6 g8B Nf5 Rb3 Ng3 Nh8 Rab8 Qe8 Nc5 Bgd5 Bf5 Qc6 Ne6 Na4 Ba3 Qe2 Rg2 Rg1 h1R Qf2+ Ke5 Qe8 h2 Bb7 Bb2 Qc6 Ba3 Ke3 Bb2 Bd2 Ba3 Be1 c1B+ Bd2 Bcb2 Be1 Rh3 Kd2 Rh7 Bf3 Kf4 d4 Rh3 d5 Ke5 Re3+ Kd4 d6 Rh7 d7 Rh3 Nc5 Rh7 d8R+ Kc4 Nd3+ Kb3 Nc5+ Ka2 Na4 Kb1 Rb3 Rh3 Rg8 Rh7 Rf1 Rhg1 Rg5 h1R Qe2 R1h2 Be4+ Ka1 Rf2 Rf1 Rf4 Rf3 Qf2 Rc3 Rf3 Re8 Rd3 Kb1 Rd8+ Ka1 Ra8 Rb8 Ra7 Ka2 Bd5 Kb1 Be4+
n3b3/qkB1r1QR/r4N1N/1Qbb2q1/2rbP3/3nn2R/P2qQ3/R2BB2K b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 g5 h4 c5 d4 Kc7 e4 f5 h6 b5 d6+ Kb7 d7 b3 h5 c4 d5 g4 d6 f3+ Kh2 f4 h7 f2 h6 b2 Kg2 g3 Na3 b1R Qe1 f3+ Kh3 g2 Kh2 c3 Qd2 b4 Nh3 g1B+ Kg3 b3 Nc4 b2 Bg2 f1Q Nb6 c2 Qd3 f2 Qc3 Ne7 Qc5 Ra6 Qa5 Qb5 Bf3 f1B Nd5 Bc4 Kg2 Bd4 Bd1 Nf5 Bd2 c1N Nf2 Nd3 Rh3 Rc1 Ng4 b1Q Be1 Ne3+ Kh1 Be7 Qa4 Re8 Ndf6 Bd5 h8R Rc4 h7 Qc5 Nh6 Qc1 Qc2 Qa7 Qe2 Qa5 d8Q Qad2 d7 Bec5 Qa5 Re7 d8B Bd7 Qa4 Be8 Bc7 Nd7 Qb5+ Nb6 Rg8 Raa4 h8Q Ra3 Rg7 Ra6 Qd7 Na8 Rh7 Nc2 Qg8 Qg5 Qf7 Ne3 Qg7 Qd2 Qb5+
nbn5/NQq4B/b3r2n/rbR5/P2b1q1B/1N1q3B/K4kPQ/1rRRN3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 e4 Ke7 d4 Kd6 Kd2 h5 Kc2 f5 Kb3 c5 a4 b5 g6 h4 g7 f3 Bd2 h3 Qc2 f2 Ne2 h2 Ra2 f4 Qc4 f3 Qc3 c4+ Kb2 b3 Nf4 b4 Qc2 c3+ Ka1 Rh6 Rb2 Qc7 Be2 f1Q Ba6 f2 Nd3 Nd7 Ne1 Re6 Bg5 Ne7 g8B Nb6 Bh4 Bg7 Nd2 Bb7 Qd3 c2 Qh3 c1B Bh7 Nec8 Rc2 b2+ Ka2 b1R Nb3 Bf4 Rc5 Bg3 Bb5 Ra5 Bd7 Na8 Rg1 h1N Qh2 Qd3 Rf1 Bf6 Rg1 f1Q e5+ Ke7 d6+ Kf7 d5 Ba6 Rc3 Qf4 Rc5 Nf2 Rh1 Ng4 Rf1 Re7 e6+ Kg7 Rh1 Kh6 Rg1 Re8 e7 Kh5 Be6 Bh8 d7 Bd4 d8N Nh6 Nc6 Bb5 Na7 Ba6 Beg8 Kg4 d6 Bb5 d7 Ba6 d8R Bb5 Nc1 b3+ Ka3 b2+ Nb3 Rc1 Bd5 b1B Rf1 Bc2 Ka2 Rb1 Rg1 Bd1 Rh1 Be2 Be6+ Qff5 Bd7 Kf4 Be6 Ke3 Rd6 Qf6 Bh3 Qf4 Rg1 Kf2 Rd7 Rf8 e8Q Rf6 Qf7 Re6 Rh1 Bf3 Rd6 Bb7 Rdc6 B7a6 Rc1 Qd8 Qb7 Qdc7 R6c5 Qb6 Nf3 Qg4 Bd8 Bb8 Rhd1 Qc7 Ne1 Qgf4 Bh4+
N2k2Q1/1nR1n1nK/3b3R/1qr1NPr1/N3rqB1/3QP3/3q1Q1B/n4bRb b - - 0 1 illegal: No proof kernel
2n2n2/1rkq1N2/qN3P2/QRP2qbB/Nb1Q3n/RKBr4/r2b4/1b2B2R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 Kd7 g4 h5 c4 a5 Kc2 e5 b4 e4 g5 d3+ Kb2 d2 g6 a4 b6 d4 g7 d3 b7 e3 b5 h3 f6 e2 f5 e1B f7 h2 b6 h4 Qg4 d1Q Qh3 a3+ Ka2 d2 Qc3 h3 Qf6 Qg4 Ne2 d1R Nf4 Bfb4 f8B Bed2 c5 Ne7 g8R Rh7 Kb3 a2 Nc3 Qe2 Rh8 Qa6 Nd3 Bg5 Rb1 a1B Na4 Bac3 Be2 Bcd2 Qd4+ Kc6 f6 Bf5 Bb2 Nc8 Bh5 Nd7 Bd6 Nf8 b8Q Rb7 Bg3 Qd7 Bc3 Raa7 Qa8 Bg6 Re1 h1N Re3 h2 Be1 Ng3 Rb2 h1Q Ne5+ Kb5 Rh6 Nf5 Nf7 Nh4 Rg3 Bb1 Rh3 Rc7 b7 Qf3 b8N Rcb7 Rh8 Qd3 Rh7 Q7f5 Nd7 Kc6 Ndb6 Kc7 Rh1 Qd7 Ra2 Q3f5 Rg7 Bh6 Rg2 Bdg5 Ra3 Rd3 Rb2 Rb8 Qad5 Rbb7 Q5c4 Bd2 Qb5 Bhg5 Qa5 Qd8 Ra1 Qe4 Qb5 Qa5 Kc4 Ba3 Rb3 Qf3 Nb2 Qd7 Rb4 Ra8 Kb3 Qff5 Qa4 Qab5 Ra2 Ra5 Ra1 Qa6 Rb5 Bb4 Ra2 Ba3 Qab4 Ra4 Qa5 Bb4 Ra1 Ra2 N2a4 Rc2 Ra3 Rb2+ Kc4 Ra2 Kb3
1R1Bb3/3Q1n1n/q1P1B2R/4NP1R/qq2rqB1/Q1br1Q2/K4b1r/2N1k1n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 f4 Kf6 c4 a5 Kc2 d5 Kb3 e5 g4 h5 b6 e4 c5 e3 b7 h3 c6 d3 Ne2 h2 Qd2 d4 Ng3 h4 Qg2 a4+ Ka2 h3 b4 a3 b5 d2 b6 d1R Ba6 e2 Qd5 e1B Bb5 d3 Be3 d2 Bd3 Bd7 Be2 Bg7 Rf1 h1Q Qb5 h2 Bc5 Qc7 Qb3 Bf2 Bf8 Qe4 Rh1 Qb4 Qf3 Be8 Bd6 Nd7 b8R Ra7 b7 Ra4 Bf8 Nh6 g5+ Kf7 f6 Kg6 f7 Bc3 Bc5 Nf8 Be7 Nh7 f8Q Nf7 Bd8 Qe5 Qe7 Qee4 Qd7 Qf5 Rg1 h1N Rg2 Qfe4 Rh2 Qe5 Rh5 Qe3 Nf5 Ng3 Nh6 Qee4 Ng4 Qe3 Bf1 Ne2 Bh3 Ng1 Ne5+ Kg7 Nd3 Kg6 Nc1 Qe5 Rc8 Qf5 b8Q Qg4 Qba7 Qh4 Qdd4 Qg4 Rb8 Kf5 Bf1 Qh4 g6+ Qg5 Rh6 Qf6 g7 Qe5 Qfd3+ Kg4 f5+ Qf4 Qe2+ Kg3 g8B Qb6 Bh3 Qb4 Bg4 Kg2 Qee7 Kf1 Qed7 Ke1 Qc4 Ra5 Qa8 Re5 Qcd3 Re4 Qf3 Nhg5 Rf6 Rh2 Rh6 Nh7 Qa6 Ne5 Be6 Nf7 Rh5 Qa5 Kb3 a2 Na3 Qc5 Rb1 a1Q Nc4 Qd4 Qaa7 Qa6 Qc5 Qdd6 Qa3 Qf8 Ka2 Qb4 Nb3 Rc1 Rh6 d1Q Ne5 Qdd4 Rb2 Rd1 Nc1 Qba4 Rd2 Qdb4 Rd6 Rd3 Rh5 Q6a5 Bc4 Qab6 Rdh6 Qba6 Be6
B5bN/5n2/2Q3Q1/2r5/br1R1N1R/NrnP1kbR/1Pn2r1r/1rBqB1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 e4 Ke5 d6 h5 d7 f5 g5 a5 g6 c5 b6 a4 g7 c4 b7 c3 Rh3 c2 Bg2 a3 Rf3 a2 Rc3 f3 Rc5+ Kf4 e5 h3 e6 h2 e7 h1R e8N h4 Kf1 h3 Rb5 f2 Bc6 h2 Nc3 Ne7 g8Q Ra3 Qf7 Rh4 Bg2 Rb3 Qf6 Nbc6 b8R Ne5 R5b7 Nf7 Ng7 Nd5 Rb5 Bd6 Nb1 Nc3 Rd5 Bb7 Qg6 Bc6 Qe2 Ba4 Na3 Bc7 Rb1 a1N Qee6 Rg4 Rb7 Kg3 Qc6 f4 Ne6 Bb8 Ng5 Rh4 Be4 Kg4 Kg2 f1B+ Kf2 f3 Rd6 Bc4 Rd4 Bd6 Rb4 Bg3+ Ke3 f2 N1h3 f1R Nf4 Rf2 d3 Qh8 d8B Qh5 Bd5 Rd1 Ba5 h1R Qc5 R1h2 Ba8 Rdf1 Qcc6 Bd5 Bd2 c1R Rbc4 Rc2 Bc1 Nb5 Rb4 Rc5 Rbc4 Rfh1 Be1 Nc3 Rb4 Nd8 Rbc4 Bg8 Rb4 Ne6 Nf7+ Ng5 Nh8 Rhf1 Qge8 Nf7 Rbc4 Kg5 Qee6 Qd1 Qh6+ Kg4 Qhf6 Rhh5 Qg6+ Rhg5 Rb4 Rb5 Rbc4 R5b4 Bed2 Rg1 Nd5+ Rf4 Re4 Qf1 Rcd4 Na2 Bc3 Rh4 B1d2 Rgh1 Rd1 Qg1+ Ke2 Nc2 Rf1 Rh7 Rf2 Qa1 Rh2 Rc1 Be1 Rh4 Bcd2 Rh3 Rf2 Nc3+ Kf1 Rd1 Kg1 Qc1 Be3 Qd2 Re6 Rb1 Rh2 Qd1 Ree4 Rh4 Bc1 Rh5 Qgf6 Rh7 Rh6 Rh5 Qfd6 Rh2 Rh3 Rh5 Nc7 Rc5 Nd5 Kf5 Qh6 Rff2 Reh4 Ke5 Nf4 Kf5 Rh5+ Kg4 Qhg6+ Rg5 Nd5+ Kf3 R5h4 Re5 Nf4+ Rd5 Re4 Rc5 Rd4+
6nQ/BrN1Qn2/r1Pr1R1N/4b2K/P2b2RQ/6bq/bkBN2rB/2br4 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 a4 Kf6 f4 e5 h4 d5 c4 g5 h5 b5 c6 e4 h6 e3 h7 d4 c5 b3 c7 g3 Kf3 d3 Kg4 b2 c6 d2 Be2 g2 Bd3 b4 Qe1 d1R Ra2 b3 Bb5 e2 Nc3 b1R Bd2 b2 Rh4 Qd7 Ba6 Ba3 Kh5 g4 Bc1 g3 Rg4 Rd6 Bd3 Ra6 Be3 Rd1 Nb5 b1R Nf3 g1B Nd2 g2 Ba7 Bc1 Bc2 Bh2 Ra3 g1B Rf3 Bd4 Qh4+ Kf7 f6 Ke6 f5+ Kd5 f7 e1B f8B Bhe5 f6 B1g3 f7 Qf5+ Qg5 Be6 c8Q Nd7 Rf2 Qf3 Qh4 Qh1 Bg7 Qh3 f8Q Rb3 Qe7 Rb4 Nf3 Kc4 Nc7 Kc3 Nd2 Ba2 Rf6 Kb2 Bh6 Rb7 Bf4 Nc5 Qce8 Ne4 Q8f8 Ng5 Qfd8 Bgf2 Bh2 Nf7 Qc8 Bfg3 Qa8 Ngh6 Qb8 Rg8 h8N Rg6 Qbf8 Ng8 Qb8 Nd8 Nf7 Rg7 Nh6 Nf7 Rgf4 Bgf2 Qa8 Rg2 Rg4 Bfg3 Qaf8 Bgf2 Qg7 Bfg3 Qh8
2K5/rrQ4k/nR2N2B/1r1R2r1/3QB2N/Q1Pbn1n1/1Rq2P1b/1rNb2n1 b - - 0 1 illegal: No possible last move
3N1R2/br6/1b1bN1n1/NR1b2rR/qQr3k1/qP4B1/B2P1B2/bQ2nbK1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 h4 g5 b6 a5 b7 c5 b3 f3 e5+ Kf5 e6 c4 e7 c3 e8R a4 d6 g3+ Ke3 a3 h5 g2 Kf2 c2 d7 a2 h6 g4 h7 g3+ Ke3 f2 Nc3 Ra5 Nf3 g1B Ke2 g2 Rh4 Nc6 b8Q Nd4+ Ke3 Bd6 Qa8 Qe7+ Ne5 Nf3 d8N Bb7 Ke2 Bd5 Qb7 Ne1 Bb2 c1R Na4 Rc4 Nc5 f6 Rc1 a1B Nce6 Qd7 Rh1 Ne7 Nec6 Ng6 Qb4 Kg4 Rf8 f5 Be5 f4 Rh5 f3+ Ke3 Rb5 Na5 Rb7 Bd3 Qa4 Bg3 Rg8 h8B f1Q+ Bf2 Qa3 Bb1 Qa4 Be5 Nh4 Bh2 Rg5 Bg3 Rd4 Ba2 Ng6 Rc5 Rc4 Rb5 Nd3 Qc2 Qc1 Qb1 Bh2 Be1 f2 Bf4 g1B Rf6 Qca3 Be5 f1B+ Rf2 Bb8 Bd4 Bhd6 Bb6 Bgh2 Rf8 Ba7 Bg3 Ne1 Kf2 Re5 Bd4 Rg5 Bh4 Bhe5 Kg1 Bdc5 Be3 Bed6 Bg3 Bcb6 Bef2
r1Qq4/1BQ1b1N1/2R1R1b1/2N1q2R/4qPb1/6BQ/bkr1PK1b/nnB4b b - - 0 1 illegal: No proof kernel
Qnn5/2KR4/br3BBb/1r1RN1bB/1QN2P2/3rkn1N/b2qP3/2Qn3b b - - 0 1 illegal: No proof kernel
rn3n2/QQq1B2n/Nb2b2q/1K1BRn1P/1b2P3/1N1Bnn1r/5R1k/N2Q4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 a5 b4 f5 h4 d5+ Kd3 g5 c4 g4 c5 g3 b6 g2 c6 a4 c7 a3 h6 a2 h7 f3 b5 f4 b7 f2 b6 f3 Rh3 Be6 c8B Qc7 Bh6 Bb4 Bf8 Kf4 Na3 Nf6 Rh1 Kg3 Rc1 a1N Bc5 Nb3 Be7 Nc5+ Kc2 Ncd7+ Kb3 d3 Nc2 d2 Bd3 f1N Na1 f2 Nf3 g1B Nd4 Nf8 Rc5 Ne3 Bd7 f1N Bc6 Nf5 h5 Nh2 Ra5 Nf3 Ka4 Rg8 h8Q N6h7 Ndb3 d4 Kb5 Kg2 Qf6 Rg3 Bd5 Rh3 Qf7 Be3 Rf1 Kh2 Qe1 d1N Qg7 Nf2 Qd1 Ng4 Qf7 Bg1 Qg7 Nge3 Qf7 Nbd7 b8Q Bf2 Qb7 Nb8 Qa7 Bg1 b7 Bf2 Bc2 d3 Bb1 d2 Bd3 Na6 b8N Bg1 Nd7 Nb8 Ndc5 Bf2 Na6 Bg1 Qb1 d1Q Qb7 Qd2 Qd1 Nc4 Qg7 Qh6 Qd4 Be3 Qda7 Bb6 Ka4 Ng3 Bc6 Rh4 Re5 Ne3 Bd5 Ngf5 Kb5 Rh3 Rf2+
3nbN1Q/2bbnN1R/B2r4/nb2PB2/1qq1RK2/4Q1N1/P1r1bb1B/2k3R1 b - - 0 1 illegal: No possible last move
K1N4B/b5Rk/4nr2/1Bn1P3/qN1P1R1n/1Qrb2N1/4r1Q1/rb1Qr1Bb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 g4 f5+ Ke5 Kf7 e4 Kg7 b4 a4 d4 f3 b6 c4 g5 h3 b5 c3 d6 h4 Kd5 c2 e5 f4 d7 h2 b7 a3 g6 f2 b6 f3 Bg2 f1B Qe1 a2 Bd2 c1N Be3 f2 Na3 h3 Nc4 Ra3 Nd6 Nd3 Qd1 Qe8 d8B Nc5 Ne2 Bf5 Ng3 Nh6 Nc8 Ne6 Rg1 B1d3 Bf1 Nd7 Kc6 h1R b8N h2 Kb7 Rc3 Nc6 Bc5 Ka8 Rg8 b7 Ba7 b8Q Ndc5 Be2 f1R Nb4 Qa4 Qb6 Kh8 g7+ Kh7 Bf6 Rf4 Rg2 Re1 Bg1 h1B Rc1 Bb1 Bb5 a1R Rc2 Rh8 Rf2 Bfd3 Qc6 Rfe4 Rf4 Nf5 Qd5 R4e2 Q5b3 Rf8 g8Q+ Kh6 Bh8 Nh4 Ne4 Rf6 Rg7 Nf8 Qgd5 Nfe6 Qc6 Bg2 Ng3 Bh1 Rg6+ Kh7 Qg2 Rf7 Rg8 Rf6 Rg7+
1Rn5/2rRNR2/1bq1Q2b/rbP1nb2/Qb1PQ2b/3Nq3/5Br1/1B1k1K1B b - - 0 1 illegal: No proof kernel
2Q3n1/Q4rnq/2B1n2P/R4B2/4P2N/BbQ1Rn2/2N1qnK1/rkbN1n1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 h4 Kf6 e4 Ke5 b4 a5 c4 f5 h6 d5 c5 g5 b6 g4 c6 d3 h7 Kd4 b7 g3+ Kf3 g2 h5 d2 c7 a4 b5 a3 b6 a2 Rh3 Ra7 Qb3 d1Q+ Kf2 f3 Bg5 f4 Be2 Nc6 b8Q Qd7 b7 Bh6 Rh1 Nd8 Bf1 Ne6 Nh3 Qe2+ Kg1 f2+ Kh2 g1N Be7 f3 Bb4 Bc1 Qb2+ Kd3 Na3 d4 Nc2 Qf7 Be7 Kd2 Bc5 d3 Ba3 Bd7 c8B Ba4 Qf6 Bb3 Qc3+ Kd1 Bd7 d2 Qbc8 Qe7 b8Q Qh4 Rb1 a1R Bc6 Rf7 Rb2 Qe7 Ra2 Qd7 Bg2 Qa7 Kg3 Qb7 Qa7 f1N+ Kg4 Ne3+ Kg3 f2 h6 Nf5+ Kh2 Nfg7 Bf1 Nf3+ Kg2 Nf6 Rg1 Rhf8 h8N Ng8 Ng6 Rd8 Nh4 Rd5 Kh1 Rh5 Rg5 Qe7 Ra5 Qc7 Bg2 f1N Rb2 Qe5 Ra2 Qf5 Rb2 Qh7 Ra2 Bb2 Nf2+ Kc1 Nd1 Kb1 Bh3 Bc1 Bf5 Bd5 Nf2 d1N Kg2 Bb3 Ne1 Qd3 Re2 Qc4 Re3 Qe2 Ng6 Rh3 Nh4 Rh1 Nc2 Qe1 Nd3 Nf2 Nb2 Qe2 Nd1
rN2Q3/br1PR2b/1RQb4/q3P3/2n2k1K/nBB2N1n/R6r/nbQB3n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 a5 d6 h5 d7 f5 d3 c5 b6 c4 b5 c3 b7 f3 b6 f4 g5 c2 g6 h3 g7 h2 Be2 a4 Qf1 h4 Nh3 a3 Qe1 a2 Qd2 Bd6 Rg1 h1R Rg3 Nf6 g8B Nd5 Rg7 Rh7 Ng1 h3 Na3 h2 Nb5 Na6 b8Q Nac7 Na7 Nb5 b7 Qa5 d8Q Bf5 Qb6 Na3 Bd1 Bg6 Qe1 Bf5 Bd2 c1B Rc7 Re7 Bf7 Bh7 Qc6 Bb2 Qe3 Bd4 Qbe8 Bb6 b8R Bd4 Rc1 a1N Rc2 Bb6 Ra2 Bbc5 Kf1 f2 Kg2 f1N Kh3 f3 Kh4 f2 Rb6 Nf4 Bfb3 Nh3 Bc3+ Bd4 Qe1 Ne3 Nf3+ Kf4 e5 f1B Qd2 B4c5 d4 Bfd3 d5 Bb1 Qc1 Rg7 Re7 Bd4 Re6 Rb7 Re7 B4c5 Qb5 Bd4 Nc6 B4c5 Nb8 Bd4 Qb2 Nec4 Qbc6 B4c5 Rb4 Ba7 Rb6 Re1 Qc2 h1N Qb2 Re2 Qc2 Bc7 d6 Rh2 d7 Bd6 Qc1+
1RR4b/qQ3Rr1/2B1b3/1N1q2bn/1r4q1/kP1b3Q/N2P1qBB/Kn3Nq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 e4 Kd6 g5 Kc5 b6 Kb4 b7 h5 g6 a5 d6 c5 g7 f5 e5 h3 d7 a4 e6 h2 e7 a3 e8Q h4 b3 c4 Bg2 a2 Nh3 c3 Bf3 c2 Qf7 Qa5 d8R Be6 Qe2 Nf6 g8B Na6 b8N Bh6 Rc8 Bg5 Be4 f3 Rf8 f2+ Kf1 f4 Rd8 Nh5 Bg2 Nc5 Qd3 Na4 Ke2 Ra7 Ng1 h3 Bb2 c1Q Na3 Qc8 Kd1 f1B Rc1 a1B Nf3 Nc3+ Kc2 Nb1+ Qc7 Rh7 Be5 Rg7 Nb5 Rb7 Qf5 Bfc4 Rhf1 h1Q Nh2 f3 Qg4 Rb6 Qb7 f2 Re8 Qa7 Na6+ Ka5 Bd6 Qg1 Nb4 Bc3 Na2 Bd3+ Kd1 Qc4 Rb8 Be5 Qgf3 Qg4 Rcc8 Bd4 Kc1 Ba1 Na3 Rb4 Nb5 Bc3 Bh7 Be5 Be4 Bc3 Re1 f1Q Bc6 Qff2 Nf1 h2 Qh3 h1Q Re4 Bd4 Rf4 Ba1 Rf7 Baf6 Bge4 Qhf3 Bh2 Ba1 Bh7 Qd5 Be4 Ra4 Re8 Rg8 Nc7 Bh8 Bg2 Rg7 Kb2 Re4 Nb5 Rd4 Nac3 Kb4 Rec8 Rc4 Na4 Re4 Ka1 Rf4 Nc3+ Ka3 Na2 Re4 N4c3 Rb4 Nb5+
rR5b/qbB1r3/7K/B1R1q1rN/QPn4b/1PNQ2r1/rk2N1bn/3B3R b - - 0 1 legal: proof: h4 d5 f4 b5 c4 g5 cxd5 gxh4 f5 b4 a3 e6 axb4 exf5 Qc2 f4 Qb3 Bf5 Qd1 Bc8 Kf2 Ke7 Kf3 Kd6 d4 f5 e4 h5 g4 a5 g5 c5 g6 a4 g7 h3 b3 c4 Bb2 a3 Nd2 h4 Qe1 a2 Qg3 c3 Bd3 c2 Rc1 a1R Bc3 h2 Rb1 c1B Bb5 h3 Bd3 Nd7 Qh4 Bb7 Bf1 Nh6 g8N Rh7 Qg5 Nb6 Qh5 Qe8 Rb2 Qe5 Ba6 Re7 Ne2 Nc4 Qe8 Ra2 Qa4 Ng4 Nf6 Bg7 Rc2 Bh8 Nb1 Be3 Nh5 Bf2 Ba1 Bg3 Nbc3 Bh4 Rf1 h1R Rcc1 Rh2 Rh1 Rg2 Rc2 Kc7 d6+ Kb6 d7 h2 d8R Kc7 Rc8+ Kd6 d5 Rg1 Rb8 Rg2 Rg1 h1Q Rd1 Qh2 Rh1 Qg1 Rc1 Qa7 Qb5 Nce3 Qd3 Nc4 Bb5 Qe6 Bb2 Ke5 d6 Qd5 d7 Qdc5 d8B Rg1 Nd4 Nh2+ Ke2 Rg6 Ba5 Rg3 Kf2 f3 Be8 Ne3 Nde2 f4 Bd7 Qc7 Bg4 Qd6 Rc2 Qc7 Bc1 Nc4+ Be3 Qd6 Beb6 Qe6 Ke1 Qd6 Bc7 f2+ Kd1 f1B Rc1 Nb2+ Kd2 f3 Rc2 f2 Bf3 Qa6 Ke3 Bg2 Rcc1 f1R Rc2 Ke6 e5 Qa7+ Kf4 Nc4 Rc1 Rg1 Rc2 Qd5 Rc1 Kd7 e6+ Kc6 Bg4 Qdd4+ Kf5 Qe5+ Kg6 Rf1 Kh6 Rf5 Rc2 Rg5 Qd8 Rf7 e7 Rfg7 e8Q+ Rd7 Nb5 Kd5 Rcc1 Ke4 Nbc3+ Kd3 Rc2 Bgd5 Rcc1 Re7 Qa4 Kd2 Rb1 Kc2 Rbc1+ Kb2 Qd6 Bg2 Qd3 Nd6 Ng1 Qac5 Bd1 Nc4 Nge2 Qa7 Nb1 Nd2 Rc5 Nc4 Nbc3
1NBnbq2/RR3Q1N/6k1/1nQ1Pr2/n1rb1BqQ/BP5q/n2KN1qq/8 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 c5 g4 a5 d4 f5 b6 Kf7 d6 h5 b3 c4 g5 f3 e5 h3 d5 f2+ Ke2 a4 b7 h4 d7 a3 d6 a2 Bb2 h2 Kd2 h3 Kc1 f4 Qd2 c3 Qd4 f3 Qd3 c2 Qd5+ Kg6 Qa5 Nh6 Ba6 f1Q+ Qe1 f2 Bc4 Na6 b8N Nf7 Qd1 Nc5 Nf3 Qg1 Nbd2 f1Q Ne4 Qg4 Bb5 Ra4 Ng3 Rh5 Ne2 Rc4 Ba6 Na4 Ba3 Qfg2 Kd2 c1N Qg1 Bh6 Qa7 Qf8 d8Q Bd7 Qc5 Be8 Rd1 h1Q d7 h2 Bc8 Qhg1 Qde7 h1Q d8B Qg1h2 Qf6+ Kh7 Qf4 Kg7 g6 Rf5 Bg5 Nd8 Qg3 Qhh3 Bf4 Q1h2 Qh4 Bg5 Rf1 Be7 Ng5 Bd6 Qb4 Bc5 Nh7 Bg1 Qc5 Bd4 Rb1 a1N Rh1 Nc2 Ra1 Kg8 g7 Kf7 Rf1 Kg6 g8Q+ Qg7 Rf3 Na2 Qgf8 Qg8 Qfe7 Qf8 Rd3 Bg1 Rd7 Nd4 Rb7 Nb5 Qd7 Bd4 Bb2 N4c3 Qdc7 Nc1 Raa7 N1a2 Ba3 Na4 Qf7+
b1B4q/R2b3N/nb2rrP1/BRQQNn1K/4b1n1/2Q1n3/1P1n4/k1q1N1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 d4 f5 g4 h5 e4 c5 b6 a5 g5 a4 b7 c4 g6 a3 Bg2 h3 Qb3 h2 Qa4 c3 Qd1 a2 Na3 c2 Rb1 a1N Qd3 h4 Qc3 h3 Qa5 Ra6 Qe1 Nb3 Qg3 Ne7 Bd2 c1Q Ra1 Bd7 Ba5 Bg7 Qg5 Rf8 Nc2 Rf6 Ne1 Qh8 Bf1 Rc6 Ba6 Bh6 Qg3 Bg5 Qf2 Bh4 Qd2 Bf2 Qc3 Rb6 Bb5 Na6 b8R Be3 Bc6 Re6 Bb7 Rc6 Bc8 Nd2+ Ke2 Rb6 Ngf3 Bg1 Ne5 f3+ Kd3 f2 Ke3 f1N+ Kf4 Rc6 Kg5 f4 Rb5 f3 Ra4 Bf2 Rg1 h1B Ra3 h2 Kg4 Qe8 Kh5 Nf5 Ra2 N1e3 Ra3 Ke7 d6+ Kf6 d5 Ng4 Ra4 Bb6 Ra2 f2 Qc5 Qf8 Ra4 Be8 d7 f1N d6 N1e3 d8N Bf3 d7 h1B Ndf7 Rcd6 Ng5 Qh8+ Nh7+ Ke7 Nc2 Rf6 Ra3 Ke6 d8Q+ Bd7 Ne1 Bhg2 Nc6 Bh1 e5 Be4 Qc3 Nc5 Ra1 Kd5 e6 Bhf3 e7 Rde6 e8Q Bh1 Qe5+ Kc4 Qf8 Na6 Qg3 Nb4 Qf3 Kb3 Ne5 Ba8 Qc6 Bg2 Qfc5 Be4 Rb1 Ka2 Q6d5+ Qc4 Qdc7 Na6 Q7c6 Bc7 Rc1 Bb6 Rc3 Kb1 Ra3 Qc1 Qc3 Bd3 Q6c5 Be4 Rab3 Ka1 R3b4 Bc7 Rb7 Bd8 R4b5 Bb6 Ra7
5q1b/R3r1bB/n1B1nnP1/Q3N2Q/2nb1n1K/qRP2r1N/1N3Qb1/4Bk2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 b4 Kf7 g4 Kg6 f4 h5 Kf2 d5 Kg3 a5 b6 e5 b7 d3 b5 a4 b6 h4+ Kh3 d4 Bd2 a3 Bg2 a2 Qf3 e3 Bb4 d2 Qg3 d1N Nf3 e2 Qf2 e1B Bd6 e4 Bc5 e3 Ba3 e2 Bb4 d3 Ng1 d2 Rh2 Ra7 Bf1 Nc3 Qg3 d1N Qf2 Nf6 Na3 Ne3 Bg2 Na4 Nc4 Na6 b8Q Bc3 b7 e1N Bc6 N4c5 Qc7 Bg7 b8N Ned3 Qa5 Re7 Nb2 Bb7 Nd7 Bd4 Be1 Ne6 Rg2 Qf8 Rg3 Nc4 f5+ Kh7 g6+ Kh6 g5+ Kh5 Ne5 Ndf4+ Kh2 h3 Rb3 Rh7 Kg3 h2 Nh3 h1Q Qh2 Bh8 g7 Ba8 g8B Rhf7 g6 Qd5 Bb4 Qd6 Be1 Qa3 Bh7 Bg7 Rd1 a1B Qf2 Be3 Rd7 Bd4 Ra7 Bb7 Bb5 Bg2 Bc6 N6d5 f6 Bh8 Ng1 Kg5 Qe2 Kf5 Qg4+ Ke4 Nh3 Bg7 Qh5 Bh8 Nbd3 Ke3 Kh4 Bac3 Nb2 Bg7 Qh6 Ke2 Qh5+ Kf1 Rb6 Rb7 Rb3 Rfe7 f7 Nf6 Nd1 Ba1 Nb2 Rb6 Re3 Rb3 Rg3 Qd8 f8Q Rf3 Qf7 Rf2 Rd3 Qf8 Rb3 Rf3 Qg8 Ne4 Qf7 Bh8 Qa4 Bc3 Qff5 Rd3 Nf7 Bcg7 Ne5 Nf6 Nd1 Bd4 c3 Rg3 Qc2 Nb4 Nb2 Na6 Qa5 Rf3 Qf2+
rb3B2/1Bqbr2R/3P2rb/b2Knn2/8/2NPb1kB/2N1qQ1R/Q1rNQ3 b - - 0 1 illegal: No possible last move, all moves rejected
6R1/bn2NQ2/q1Pk1rP1/1qrBq3/b3b1n1/N1Bq2bN/1R2q1Q1/2B3RK b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 Kd7 f4 a5 Kf2 e5 Kg2 h5 b4 a4 f6 d3 f7 h3+ Kh2 a3 g5 d2 f5 e4 c5 d4 c6+ Kd6 f6 a2 g6 h4 b6 d3 b7 e3 b5 e2 b6 e1B Bg2 Ra5 Ne2 Na6 b8N Rc5 b7 Bg3+ Kg1 h2+ Kf1 h3 Nf4 Nh6 Ne2 Ng4 Qa4 d1B Ng1 d2 Qe4 Ba4 Na3 Bf5 Rb1 a1Q Nd7 Qe5 b8R Qde7 Qe2 Be4 Nb6 Q7e6 Nd5 d1Q+ Qe1 Bg7 Rg8 Qd3+ Qe2 Rh5 Ne7 Rf5+ Bf3 Bh6 f8B Be3 f7 Rf6 Rb4 Qec4 Bg7 Qb5 f8Q Bef2 Bg2 Bd4+ Nf3 Be3 Rg1 h1Q Qf7 h2 Rb2 Bd4 Bh3 Bdf2 Ng5 Qhf3 Bg2 h1Q Bh8 Qh5 Nh3 Qhf5 Bg7 Qc8 Bh1 Qfe3 Bf3 Qcb7 Kg2 Qa7 Qf1 Qee2 Bh8 Rc2 Nd5 Qf4 Rf8 Re6 Qg7 Nc5 Qh6 Bf5 Qh7 Nb7 Qf7 Qaa6 Ne7 Ba7+ Kh1 Rc5 Bc3 Qfe5 Bd5 Be4+ Qg2 Rf6 Rg8
2k5/q1P1rN2/1R2bnnb/2bQRQbn/RN3BB1/1PK2b1q/8/1N2nr1Q b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 g4 d5 c4 Kd7 f4 a5 g5 h5 c5 h3 f6 e4 f7 d3 f5 e3+ Kc3 h4 b6 d4+ Kb3 d2 b7 e2 g6 e1B g7 d3 f6 a4+ Kc4 a3 b3 a2 Nf3 h2 Rg1 h1Q Ng5 h3 Nh7 h2 Ba3 Qe7 Qh5 d1B Bb2 d2 Rg3 Bf2 Ng5 Rh7 Bd4 Bf3 Bd3 d1N Be3 Nc6 Bf4 Nb2+ Kc3 Ne5 Be2 Ng6 b8N+ Kd8 c6 Qa7 Rg1 Nd3 Re1 B2c5 Na6 Be6 c7+ Kc8 Nb4 Qf1 Bd1 h1N Re5 Ng3 Qh1 Nh5 Be2 Bfe7 f8Q+ Bd8 f7 Ne1 Qd6 Ngf6 f8Q Qh3 g8R Re7 Nf7 Rb8 Rh8 Rb6 Qd1 Rd6 Rh6 Rd2 Bd3 Rf2 Bf5 Rf1 Qd5 Re8 Nd2 Re7 Bg4 Ne8 Rd1 Nef6 Nb1 a1B+ Kc4 Bb2 Rd4 Bc1 Kc3 Qa6 Rd2 Qa7 Ra2 B1e3 Ra6 Ng7 Rh4 Ngh5 Rb6 Bc1 Qh6 B1e3 Qg5 Bc1 Qf5 B1e3 Bg3 Bh6 Bf4 Qa8 Nc6 Nd7 Bd2 Qa7 Bg5 Re8 Be3 Be4 Be2 Bdg5 Rg4 Bg2 Ra4 Ndf6 Nb4 Re7 Bg4 Bf3 Bf4
KQ4b1/1Pr1nB1B/b6P/4Q2q/NR1Bq2n/n1NNR1n1/k1r3Qb/1nb5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 g5 b6 a5 b7 a4 b5 c4 b6 c3 h5 f3 Ke3 g3 h6 c2 Bd3 f2 Qh5 f1N+ Kf3 a3 Qg4 g2 Ba6 f4 Rh5 a2 Ne2 g1Q Bd3 Nf6 Be3 c1B Rh4 Qe8 Qg2 Qh2 Nec3 Ng3 Na4 Ra7 Nbc3 Nc6 b8Q+ Rc7 b7 Be6 e5+ Kd7 d6 g4+ Kf2 f3 d5 Ne7 Bd4 Bg8 Bh7 Qg6 Rb1 a1N Rh3 Qe4 Rb5 Nc2 Rb4 Nf1 Rg3 Nd2 Rh3 Na3 Rg3 Qg6 Ke3 f2 Rf3 g3 Kf4 Nc8 Re3 Qe8 Kf5 f1B Kf4 Nfe4 e6+ Kd8 Ke5 Ndb1 d7 Ke7 d8N Ba6 Nf7 Qh5+ Kf4 Qc6 Ne5 Kd6 e7 Bg7 e8B Ne7 Nd3 Bf8 Qh2 g2 Bf7 g1N Qg2 Ng3 Qe8 Nf3 Qb8 Kd7 d6 Nh4 Nd5 Qc2 Bc5 Kc6 d7 Bg7 d8Q Ba1 Bd4 Bab2 Rc4+ Kb5 Qd6 Bc3 Qe5 Bb4 Rc6 Bd6 Rb6+ Kc4 Rb5 Bb4 Rb6 Kb3 Rb5 Ka2 Rb6 Bc5 Rb4 Rc6 Qg5 Ba7 Ke5 Rc7 Kd6 Qce2 Qe5 Qc2 Ndb2 Qe4 Nd3+ Rc2 Kd7 Bc5 Kc7 Bd6+ Kb6 Bc7+ Ka7 Bd6 Bf5 Rh7 Ka8 Neg6 B7e6 Rc7 Bf7 Ne7 Bh7 Nh1 Qeg5 Bh2 Qe5 Ng3 Ndc3+
k2qqqB1/1n2nRQN/B3b3/2rnq3/3B2R1/r1P1N2P/n2K2bb/1N1QR3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 e4 f5 b4 a5 h6 d5 b6 Kd7 e5 Kc6 h7 Kb7 b5 g5 h3 g4 e6 f3 e7 d3 e8B d2+ Kf2 a4 Ke3 a3 Kd3 a2 Qe2 d1N Qe3 f2 Qd2 g3 Qb4 f4 Ba3 f3 Qc5 d4 Qf5 g2 Qf4 Be6 Bb2 Nc6 Qd6 Ra3+ Kd2 d3 Bf7 Ka8 Bd4 Nge7 Bg8 Ne3 Ne2 g1Q Ng3 N3d5 Nf5 Qg6 Rg1 Na5 Rg4 Qge8 Ne3 Nb7 Be2 f1Q c3 f2 Qd7 Bh6 Qd6 Bf4 Qd7 Nb4 Qd5 Bc7 Qb3 Bh2 Qd1 Qh1 Bf1 Qf3 Be2 Qff8 Bf1 Nc5 Be2 f1B b7+ Ka7 b8R Bg2 Rb6 Ka8 Rb7 Nbd5 Rd7 Nb7 b6 Qb8 Bf7 Rg8 h8Q Rg5 Bg8 Qe5 Qg7 Rh5 Kc1 d2+ Kc2 Ng6 Rf7 Nge7 Ba6 Rg5 Kd3 Rf5 Qe2 d1Q+ Qd2 Qda4 Qd1 Qad7 Kd2 Ra5 Na3 Qdd8 Rb1 a1N Rc1 Nc5 Nb1 Ra3 b7+ Ka7 b8N Ka8 Qh6 Nc2 Nd7 Ncb4 Qg7 Nb7 Nf6 Na2 Nh7 Rf4 Bb6 Rc4 Bd4 Rc5 Qh1 Qa5 Re1 Qad8 Qf1 Rc4 Qf3 Rc5 Qd1
4rN1q/4qN1R/1R2QBBq/n1b5/b2RPB1n/Q7/1Pk1Nb1q/Knnr4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 Kd6 d4 a5 Kd2 f5 Kc3 c5 g5 h5 g6 h3 g7 a4 b6 f3 b7 f2 Ba6 f1N Nd2 h2 Qg4 a3 Qf3 f4 Ne2 h4 Kc2 a2 Qf2 f3 Qe3 f2 Nf3 h3 Rg1 h1Q Qd3 c4 Nf4 c3 Kb3 h2 Ne6 c2 Ne1 Nd2+ Kc3 f1Q Bb5 Qfg2 Be8 Bd7 Nf3 Ne7 g8Q Nbc6 b8R Nb1+ Kb3 Ng6 Rd1 Qe7 Ng1 Nh4 Rb6 Rd8 Bg6 Qg3 Bg5 c1B Ne2 Be3 Qa6 Qe5 Bf4 Bf2 Rd3 Qc1 Qa8 h1Q Qa3+ Qc5 Qf7 Qh2 Qf5 Qh7 Rd2 Be7 Nf8 Qh6 Qh3 Nc3 Re1 Nb1 Rh1 a1N+ Ka2 Nb3 Rdd1 Nc1+ Ka1 Kc7 Rd2 Na5 Qe6 Ba4 Rdd1 Qc3 Rd2 Rd7 Rd3 Bc5 d6+ Kc8 d5 Qcd4 Rc6+ Kb7 Rb6+ Ka7 Rdd1 Qeg7 Rd3 Qe7 Rdd1 Rd8 d7 Rg8 d6 Qdh8 Rd4 Re8 Bf7 Rg1 d8B Re1 Bg6 Rd1 Rb7+ Ka6 d7+ Bb6 Rb8 Kb5 Rb7 Qc5 Bf6 Qe7 Qf3 Kc5 d8N Ba7 Nf7 Bb6 Rd5+ Kc4 Qa3 Bbc5 Rb6 Bb3 Bd4 Kd3 Bf6+ Kc2 Rd4 Ba4 Rg1 Qd6 Rg5 Qe7 Rh5 Qg5 Rh7 Qh5 Qe5 Qh6 Qe6
1R1Q4/2KQN3/r1bnB1N1/Q3n1bn/P2B1r1n/4rb2/BRP1Rk2/1q2r2q b - - 0 1 illegal: No possible last move, all moves rejected
N3k3/1Bn1q1N1/3bP2r/r4QN1/Rq5R/2B1Q2P/4qb1q/nRKBbb1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 b4 a5 c4 f5 e4 d5 c5 a4 c6 f3 h6 g4 b6 a3 e5 f4 b7 f2 c7 g3 h3 a2 b5 d3 e6 d4 h7 f3 b6 g2 Bb2 Nc6 b8Q Na5 b7 Bd6 Kc1 d2+ Kc2 d3+ Kc3 Nf6 Bc1 Nb3 Kb2 Ra5 Na3 Nd5 Nb5 Qe7 Be2 f1Q Qc2 d1Q Qa7 f2 b8N d2 Nd7 Qde1 Bd1 Ba6 c8B Nc7 Qf5 Qfe2 Qe3 f1Q Bb7 Qf4 Nf3 g1B Ng5 Bf2 Kc2 Qg1 Bb2 Qb4 Bc3 Qh2 Rb1 a1B Nf6+ Kf8 Nh5+ Ke8 Rf1 Bb2 Ra1 Be1 Ra4 Na1+ Kb1 Bf2 Na3 Be1 Nc4 Bb5 Nb6 Ba6 Bb3 d1N Na8 Nf2 Bd1 Nh1 Rg1 Rf8 Rf1 Rf6 Rg1 Rh6 h8R+ Qf8 Rh7 Qe7 Rf1 Qbg4 Rg1 Bba3 Rf1 Bac5 Kc1 Qb4 Ng3 Rg6 Rh4 Rh6 Nh5 Bb5 Rff4 Bb6 Rd4 Ba6 Rd2 Ba7 Rb2 Bc4 Rb1 Ba6 Qee4 Baf2 Qe3 Qeg4 Bd4 Bf1 Bc3 Qe2 Ng7+
1kb1K3/qN3nq1/1q1QPrB1/r1br3Q/2NBP3/r3N2n/4n2R/RBn4R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 a5 Kf3 f5 Kf4 h5 g4 d5 c4 Kd7 e4 Kc7 b4 d3 e6 d4 Ke5 h3 c5 a4 g5 h4 c6 h2 g6 h3 g7 a3 Nc3 f4 Ra2 d2 Bb2 f3 Kf5 f2 Kg6 d3 Kf7 Rh5 Bg2 f1R+ Nf3 Nd7 b6+ Kb8 b7 Qb6 b5 Bc5 Ke8 Nh6 g8B Ne5 Bh7 Nhf7 Ra1 a2 Bg6 Ra3 Nd5 Rg5 Qe2 d1N Bd4 d2 Ne3 Nd3 Ne5 Nc3 Qh5 d1R N5c4 Rf6 Bf1 Nc1 Bd3 N3e2 Bb1 Rdd3 Qh8 Rd5 Qh5 Ra5 c7+ Ka7 b8N Rda3 Na6 Kb7 Rg1 h1Q Rd1 Qg2 Rh1 Qg1 Rh2 Qa7 Rh1 h2 b6 Bb4 Nc5+ Ka8 Nb7 Bc5 Bf5 Qg7 Bg6 Qa6 Rg1 h1N Rg2 Nf2 Rh2 R3a4 Nd8 Ra3 b7+ Ka7 Rh1 Qb6 b8Q+ Ka6 Nb7 Nh3 Nd8 Qa7 Qb4 Qb6 Qd2 Ka7 Qd3 Bb7 c8R Ba6 Rc6 Bc8 Nb7 Kb8 Rc7 Bf8 Rc5 Be7 Rb5 Bc5 Rb2 Rb3 Bh7 Re5 Qf3 Ra8 Bc3 Nd4 Rbh2 Nde2 Bg6 Rb5 Qd7 Rd5 Qh5 Rb3 Bd4 Ra6 Bd3 Rb5 Rb1 a1Q Qd8 Qaa5 Qe7 Rb3 Ra1 Ra3 Qd8 Qa7 Bc2 Q5b6 Bb1 R6a5 Qd6+
4Rq2/nQqbrq2/3P1Q2/R1B1r2P/k1n2b2/1q2RrBN/1bBr4/N3N1K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 b6 a4 b7 f4 h5 c4 b5 c3 b6 a3 d6 Kc6 d7 g3+ Ke1 c2 e6 a2 e7 f2+ Ke2 Kb5 e8R g4 d5 f3+ Ke3+ Ka4 d6 g2 Re6 g3 Ba3 Ra5 Bc4 f1Q Qc1 f2 Rh3 Nf6 Bd3 Ne4 Bc5 Nd2 Qb2 c1Q Re8 Rh7 Na3 Nc6 b8N Na7 Nc6 Re7+ Ne5 Nc4+ Kf3 Qb1 b7 Qc7 d8B Bh6 b8Q Bf4 Q8b7 Bd7 Nc2 Rb5 Qd4 Qb3 Rb1 a1B Qc3 Bb2 Na1 Ra5 Bc2 Rb5 Nd3 Ra5 Ne2 g1Q Qf6 g2 Rg3 Qh2 Ng1 Rb5 Nh3 g1R Qc3 Rg2 Ne1 Rh7 Bh4 Re7 Be3 Rbe5 Bc5 Ne3 Qd4+ Qc4 Qc3 Qf7 Ke2 Nc4+ Kf1 Qf8 Re3 Qg3 Qd4 Qgg7 Bg3 Qgf7 Qc3 Rh2 Qd4 Rh1+ Kg2 f1R Qc3 Rf3 Qd4 Rd5 Qf6 Rh2+ Kg1 Rde5 Qa8 Bd4 Qf5 Rd2 Qf6 Bc3 Qb7 Bd4 Bh7 Qa2 Rb5 Qb3 Bc2 Bb2 Ra5+
1K3N2/1b2q3/RP1r3Q/1bknbr1N/Br3R2/3qBPQ1/1QB3nr/1n2Nb2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 b4 c5+ Kc4 e5 d4 e3 g5 e2 g6 e1Q g7 h3 b6 h2 Kb5 c4 b7 e4 Bd3 e3 Be2 h4 Nf3 h3 Nh4 c3 Qd2 a4 Bg4 a3 Rf1 h1B Bd7 a2 Ng2 h2 Nf4 e2 Nh5 c2 Qh6+ Nf6 g8B Nc6 Na3 Rb8 Ka6 Na7 b5 Bg7 Be3 c1R Bh7 Rd1 Bc2 Bg2 b6 h1B Bb5 Bd7 Bba4 Ra8 b8N Nb5+ Kb7 Be8 Nd7 Nc3 Nf8 Ra5 Bc1 Bb5 Be3 Qe7+ Kb8 Rb1 Rg1 Bf1 Rg4 Qd2 Rf4 Be4 f3 e1N Bd3 Rd1 Nc2 Ng2 Ne1 Nb1 Bdc2 Rh7 Ne6 Kd7 d6 Kc6 d7 Nd5 d8Q Qd3 Qh8 Kd6 Qg8 Be5 Qg3 Rd2 Bd1 Rb2 Bdc2 Rb4 Nf8+ Nf6 Rg4 Bb7 d5 Rh8 Rd4 Kc5+ d6 Nd5 Rf4+ Bd4 Qhg7 Rh6 d7 Rd6 Bc1 Bc3 d8Q Be5 Qh6 Nd2 Rb1 a1R Rb3 Nb1 Ra3 Ra2 Qd7 Qf6 Qdg7 Qe7 Be3+ Bd4 Qf2 Bc4 Re4 Nh4 Rc3 Nc7 Bb5 Kd5 Bb3 Re2 Qfg3 Rh2 Rf4 Ng2 Be8 Rc5 Bc2 Bca6 Bea4 Bb5 Ra3 Kc4 Ra1 Rf5 Bab3+ Kc5 Ra6 Nd5 Ba4 Bc4 Bc1 Bb2 Qc3 Ba1 Qb3 Be5 Qb2 Bb5 Be3+
q2NBN2/rn1n2B1/P1b2bR1/qQr1nQ1k/2RR4/b4P1B/n3K1Q1/r6b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 g4 c5 a4 b5 d6 e5 f6 Kg6 g5 h5 f7 h3 a5 h4 a6 c4 d5 c3 d7 e4 d6 b3 Qf3 b2 Qg4 b4 Qe6+ Kh5 g6 c2 g7 h2 Ra2 h3 Qc4 e3 Bd2 c1N Ra4 e2 Nc3 b1R Ne4 b3 Bh6 b2 Nf3 Nf6 g8B Ra1 Ne5 b1N Bg7 Ne8 Nc6 Ra7 Ng5 Nd2 Nh7 Bb7 Rg1 h1Q Rg6 Qa5 d8Q h2 d7 Ba3 f8Q Nd6 Bf7 Ba8 Rb4 Nb7 Be8 Qf3 Qfg8 h1B Qb5+ Qd5 f3 Na2+ Kf2 e1B+ Ke2 Nc4 Bh3 Ne5 Rc4 Bh4 Qc8 Bf6 d8R Nbd7 Nf8 Rh7 Bh8 Re7 Bg7 Re6 Nd4 Rc6 Nde6 Ndc5 Rd6 Ncd7 Nd8 Rc5 Qb2 Qc6 Rdd4 Nd6 Qbb7 Qd5 Qb5 Bc6 Qcb8 Nb7 Qe6 Nd3 Qh2 N3e5 Qf7 Qd6 Qd5 Qb8 Qg2 Qc8 Qe4 Qa8 Qf5+
1b1N1R2/kNn2P2/q2N1Qbq/R1n2rq1/8/R1r1qnBQ/K1BP3b/3bQ3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kd7 g4 c5 b4 Kc7 f5 Kb7 d6 h5 d7 a5 g5 e5 b6 c4 g6 a4 g7 e3 b5 e4 f6 a3 f7 a2 Nf3 c3 Qb3 h3 Kd1 c2+ Ke2 h4 Ke1 h2 Qa3 h3 Ng1 e2 Qd3 Bd6 Nc3 Rh5 Na4 Ne7 g8R Nd5 Bb2 c1B Be5 Bca3 Nf3 Na6 Bg3 Rf5 Rf8 Bb8 Ne5 Ndc7 Nc4 Qg5 d8Q Bb4 Qf6 Nc5 Qdc3 Ra7 Nd6+ Ka8 Rg1 h1Q Qce5 Ra6 b7+ Ka7 Bg2 Rc6 b6+ Ka6 Bf3 h2 Bh5 Be6 Bg6 Bb3 Qc3 Bd1 Qa3 Ba7 b8Q Bc3 b7 Be5 Qbd8 Bb8 Qe8 Ka7 Qf3 Bf4 Qf1 Be5 Qh3 Bf4 Nb6 Be5 Nbc4 Bf4 Na5 Be5 Rc1 a1Q Rc3 Qa2 Ra3 Bf4 Kf2 e1N Kf1 e3 Qe4 Bc2 Ke2 Nf3 Ra1 Qe6 R1a2 Qa1 Bh7 h1B Bg6 Bb1 Kd1 e2+ Kc1 Bg2 Qe3 Bh1 Qg1 Qe3 Qd1 e1Q Bh7 Qf1 Qe1 Qa6 Bg6 Qae5 Ra1 Qe7 Kb2 Qh6 Bh7 Bc2 Ka2 Bd1 Bg6 Rd5 Bc2 Rf5 Bh4 Bh2 Bg3 Na8 Qb2 Q7g5 Qf6 Bc7 b8N Bg2 Nd7 Bb8 Nab7 Nc7 Ne5 Bf1 Ra5 Bd3 Ra3 Ne4 Ra5 Rc3 Ra3 Nc5 Nc6+ Kb6 Ncd8 Ka7 Ba4 Rd5 Bc2 Bg6 Rb1 Re5 Rb5 Rf5 Rba5
1qn2K2/bn2rP2/4b2R/1PBBQ3/1q3qbN/B1kr1R1q/Q3NQ2/3Rrb2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 b4 c5 d4 a5 g4 e3 f4 e4 b6 a4 b7 a3 b5 e2 f5 e1R f6 a2 g5 h3 f7 h2 g6 e3 g7 h4 Ne2 h3 Qb3 Ra7 Bb2 Nc6 b8R Be6 Bg2 Nge7 g8Q Nc8 Nd2 Re7 Rd1 a1Q Qg7 Qa3 Rf1 h1B Rf3 h2 Qa2 Rh3 Rb6 Qc7 Qh8 Qb8 Qh4 Bh6 Qf2 Bg5 Rf6 Bh6 Nf3 Bg7 Nh4 Qb4+ Kd3 c4+ Ke4 c3 Rf3 c2 Ba3 c1Q Kf4 Qd2 Kg5 Bg4 Kg6 Rg3 Nf4 e2 Ne6 Qf4 Kh7 Bh8 Kg8 Bf6 Kf8 Bg5 Rb7 Nd8 Ra7 Nb7 Ra6+ Kd7 d6 Qc3 Bh3 Bg2 d5 h1B Nd4 Bf1 Rb6 Be6 Bf5 Bhg2 Be4 Bgh3 Rc6 Bhg4 Rb6 Kd8 d7 Kc7 d8B+ Kd7 d6 Qb4 Rc3 Rd3 Bd5 Bf6 Rbc6 Bh8 Bb6 Be5 Ndf3 Bd4 Bc5 Qb3 Bcb4 Ba7 Bc5 Qba4 Rb6 Qe3 Rc6 Qaf4 Nd4 Qh3 Rb6 Kd8 d7 Kc7 Qd2 Bef5 Rh6 Be6 Bd6+ Kb6 Bdc5+ Ka5 Qa2 Rd2 Rf3 Rd3 d8Q+ Ka4 Qe8 Ka5 Bb6+ Ka4 Bc1+ Kb4 Bc5+ Kc3 B1a3 Qhg3 Ra1 Qh3 Rb1 Rc1 Ra1 e1Q Rb1 Qed2 Ra1 Re1 Rd1 Rc7 Qe7 Qb2 Qg5 Qb4 Qe5 Re7 Ne2#
2bn1B1K/1rBP3Q/q2Q4/N1qBR3/1bNqr3/1nk2bn1/1NP1nQ2/qR6 b - - 0 1 illegal: No proof kernel
1NK3b1/b1P1r1rb/1RB1r1N1/k3qbP1/n2B1q2/2R5/nr3R2/1Q1qBQ1Q b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 e5 Kc4 d5+ Kb3 Kd7 Ka4 Kc7 g4 Kb6 c4 h5 f4 e4 b4 h3 g5 e3 f6 h2 f5 e2 f7 e1R f6 h4 Qe2 h3 Bb2 d3 Qf3 d4 Na3 d2 Ra2 d1Q+ Nc2 d3 Ne2 d2 Bg2 Qd6 Nf4 Re6 Ng6 Qf4 Bd4+ Bc5 f8B Na6 f7 Ra7 Bd6 Qe2 f8Q Qee5 Rc1 d1Q Qh5 h1B Bc6 h2 Qh7 Qfg4 Qf1 Be4 Qh4 h1B Qhe1 Qef5 Bg3 Rhh7 Rb2 Bhg2 Qh1 Qh4 Qef1 Qhf4 Be1 Rhe7 Ra2 Q5e5 Rb2 Nf6 Ra2 Kc7 b6+ Kd6 Kb5 a4 b7 Kc7 b8R a3 Rb2 a2 Rb6 Nd5 Ka5 Bgf3 b5 Nc3 Nb4 Na4 Rf2 a1R Rcc2 Ra2 Rc3 Bd6 c5 Rb2 Ba8 Bd5 Nc6 Bfe4 Nb8 Ba2 c6 Bc5 Nh4 Bh7 Ng6 Rg7 Bb7 Kd8 Ba8 Rae7 Bb7 Nb4 c7+ Ke8 Bf3 Bd5 Be4 Na2 Bg2 Bd7 Ka6 Bc4 Kb7 Bb3 Ra6 Ba7 b6 Bc8+ Ka8 Bd5+ b7 Bc4 Rb6 Bb3 Nc6 Kd7 b8Q Kd6 Rcf3 Bd7 Kb7 Kd5 Rd3+ Kc4 Be4 Rd6 Bf3 Bf5 Bg2 Rde6 Kc8 Bg8 Qb7 Bc2 Nb8 Bb1 Qe4 Bc2 Ra6 Kb5 Rc3+ Bd3 Rb6+ Ka5 Bf3 Bc4 Qb1 Bcd3 Bc6 Bde4 Nh4 Bfh7 Ng6 Bc2 Qc4 Bf5 Qcf1
N2K4/2nbN3/5b2/2b1RqP1/Q1BQN3/nrPR1b1Q/2brR1nn/1b1kB3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 b4 e5+ f6 a5 g4 d5 f4 h5 b6 h3 f5 a4 b7 h2 b5 d3 b6 d4 Bd2 a3 Ne2 Kf3 Qc1 a2 Rg1 h1B Ng3 e4 Qb2 h4 Bf4 h3 Nc3 h2 Nd5 d2 Ne7 d1N f7 e3 f6 e2 Rb1 e1N Qc3+ d3 Ne4 a1B Qd4 d2 Rb3+ Ne3 Bc4 d1B Rd3 Ke2 Bg3 Na6 b8N Bf3 b7 h1B Nd7 Rb8 Nb6 N3g2 Na8 Qd7 Kg6 Nh6 g5 Nc7 Bh4 Bg7 f8R Ng4 Kf7 Nh2 Re8 Qf5 c3 Nc2 Be1 Bd7 Rf1 Na3 Rg1 Rd8 b8Q Bc2 Qb4 Bb2 Qa4 Rb8 Rf1 Rb3 Rg1 Bc1 Rf1 Bd2 Rf2+ Kd1 Re2 Bb1 Nd5 Rg8 Re5 Rd8 Ke7 Bc2 f7 Bf6+ Kd6 Bb1 f8Q Bc2 Qh6 Bb1 Qh3 Bc2 Nc5 Be4 Rde3 Bb1 Ne7 Bec2 Qf4 Bc1 Ne4 Bd2 Rg3 Be3 Qfg4 Be6+ Kc6 Bc5 Rf3 Rd2 Rd3 Ne3 Qg1 Bf3 Qf2 Ng2 Qd4 Ncb5 Kb7 Bd7 Kb8 Na7+ Kc7 N7b5+ Kd8 Nc7 Qg4 Nf4 Qh5 Ng2 Qh3
3b2n1/1rnBN1rN/1B4R1/Q1PnPbRK/4b2n/2n3k1/3N4/Bb1Rnq1Q b - - 0 1 illegal: No possible last move
1NRQ2n1/1Bn1PQ1k/bb2Pn2/3NB3/2R3Q1/2q1R1br/1B4nn/1r1bn1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 a5 b4 f5 c4 Kf7 e4 Kg6 g4 h5 g5 d5 c5 a4 c6 d3 b6 h3 b7 h2 b5 d2 b6 f4 c7 f3 e6 a3 e5 h4 e7 d4 Qc2+ d3 Qc3 d1N+ Ke1 f2+ Kd2 h3 Qc4 a2 Nf3 Nh6 Qa6 Ne3 Bg2 f1N+ Ke1 d2+ Kf2 Qd3 Qc4 Na6 Nc3 Rb8 Nd4 Qc2 Rb1 a1B Nc6 d1B+ Qe2 Bg7 Ne4 Bd4 Rb4 Qc3 e6 Bge5 Nf6 Kg7 g6 Bg3+ Kf3 Rh7 Rc4 Bc5 Rg1 h1N Ba3 h2 Bc1 Bd7 c8R Nf2 Ba3 h1N Bc1 Ra8 b8B Nfg4 b7 Nhf2 Be5 Nc7 Bb2 Bb6 Bh1 Nd3 Rg2 Bh4 Rg3 Ra1 Bg2 Rb1 Bh1 Nef5 Kg2 N5e3+ Kg1 Nfh2 Bd5 Ng2+ Re3 Bg3 Be4 Ngf2 Qg4 Nde1 Bf3 Nf5 Be4 Rh3 Bd5 Kh6 g7 Ne4 g8Q Be8 Qf7 Bd7 Rg8 Bc8 b8Q Ba6 Qc8 Ba4 Nb8 Bd1 Nh5 Nf6 Nf4 Qc2 Bb7 Qc3 Qfe8 Kh7 Nd5 Nh6 Rf8 Nhg8 Qf7+ Kh6 Qd7 Qb4 Rc8 Qc3 Qf8+ Kh7 Qdd8 Qc1 Qfe8 Qc3 Qf7+
1bbrQ1qB/2NNK3/1R3Q1N/1n1B2n1/2qPBPRb/1p1n3q/1r6/kR5r b - - 0 1 illegal: No possible last move, all moves rejected
1qn3N1/p4Q2/QrbnK1Pr/1nRQb3/2P5/Bk1B1b2/3q1N2/1R1rq1RB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 Kc4 g4 h5 e4+ d3 b4 d5+ Ke5 f5 g6 f3 g5 f2 g7 d4 g6 f4 b6 h4 b7 f3 c3 h3 b5 h2 b6 Ne7 g8R Bd7 Ba3 Rh6 Nh3 Na6 b8Q Nc7 b7 Nb5 Qd6 Rb8 Rg1 h1B Qa6 Bg4 Qd2 Kb3 c4 Qe8 Qf4 d2 Qf7 d1Q Nc3 d3 Nd5 d2 Nf6 Bg7 Bd3 f1Q Rc1 f2 Rh8 Rh4 Rh5 Qfe1 Ra1 f1N Nf2 Ng3 Rb1+ Ka2 Rg5 Ngf5 Rh5 Nfd6 Rf5 Bf8 Ng8 Rh6 Kf6 Qde2 e5 d1R e6 Q2d2 Rc5 Be2 Ke5 Qc8 Kf6 Qc7 Ke5 Nec8 e7 Bg7+ Ke6 Be5 e8B Be4 Bc6 Bg2 Bce4 Bh5 Bf5 Be4 Bh3 Bhf3 Bg2 Qb6 Bb2+ Kb3 Bh1 Ra8 b8Q Qc7 Qbb7 Rb8 Qbc6 Rb6 Qcb7 Qb8 Qa8 Bc6 Q8b7 Be8 Qd5 Bc6 Ba3+
Rb1r2R1/rb1R2KQ/2k5/1r4Pp/2B2Qnr/Nb1q3B/P1rn1n2/BQ2N3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 b5 d4 c4 g4 f3 e4 f2 d6 b3 d5 c3 g6 b2 g7 b4 e5 c2 g5 b3 Qe2 Nc6 Qb5 Ra7 Nf3 Nf6 g8B Bb7 Rh4 Ng4 Na3 b1R Bb2 c1R Ne1 Rc2 Bh3 f1N Bd4 f6 Kg6 f5 Qd3 Rbb2 Rd1 f4 Kf7 f3 Qh7 Rb1 Ba1 f2 Rd2 Be7 Kg7 b2 Rd1 Nd2 e6+ Kc8 d7+ Kc7 Bf7 Nb4 d6+ Kc6 Bg8 f1B Bf7 Qe8 d8Q Bc4 d7 Bb3 Qb8 Bd6 d8Q Qd7 e7 Nd3 e8R Ndf2 Rg8 Bf4 Qf8 Qd3 Bc4 Bd6 Qbd8 Bb8 Qf4 Rbc1 Qe7 b1R Qd8 Ba4 Qdd4 Rb5 Qb2 Rb1 Qc1 R1b4 Qb2 Bb3 Qb1 Ne5 Rg4 Rba4 Rg3 Neg4 Re3 Bd6 Ra8 Rd8 Re8 Bb8 Rg8 Rab4 Bf7 Re4 Bc4 Ne5 Qg3 Rh4 Qf4 Neg4 Rh8 Qd4+ Qe5 Nde4 Rg8 Qe3 Rd5 Nd2 Rd7 Qd3 Qf4
2NQbn2/1n2NnK1/1n2BPb1/p2NPQ1Q/3r1qRB/2r5/5rR1/b2nBk2 b - - 0 1 illegal: No proof kernel
b2n4/1Nrbr1bp/3R2Q1/3rPBnQ/1nPRNn2/1K4R1/N6n/1Qq1B2k b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 Kd6 c4 Ke5 Kc2 a5 b4 f5 g4 d5 b6 f3 b7 f2 b5 a4 g6 d3+ Kc3 d2 g5 Kf4 b6 Kg3 g7 d4+ Kb2 d3 g6 f4 e5 a3+ Ka2 f3 Nh3 Ne7 g8R Bd7 g7 Ng6 Bg2 f1N Qb3 d1N Ng5 f2 Nh3 Nc6 b8N Qg5 b7 Nh2 Bd5 f1B Na6 Rc8 b8Q Rc7 Nc3 d2 Nf2 Bg2 Qb1 Nf4 Nc5 Nd8 Kb3 a2 Be6 Ba8 Bf5 Kg2 Nfe4 Nf2 Nb7 d1R Bd2 N2h3 Be1 Rd5 Qd1 Qh6 Qh5 Ng5 Rd1 a1N+ Ka2 Bb4 Rd4 Nc2 Kb3 Bf8 Na2 Nb4 Rf1 Ngf3 Rf2+ Kh1 Rfd2 Ng5 R2d3 Be7 Rg3 Bf6 Re8 Rf8 g8Q Bg7 Re6 Re8 Rd6 Re6 Qge8 Re7 Qhg6 Qh3 Qh5 Qf1 Qeg6 Qg1 Qa7 Qf1 Qa3 Qg1 Qc1 Qf1 Qb1 Qg1 Bd2 Qc1 Be1
1bQ3n1/1pr1k3/2br1NbQ/q1n1PnBN/3n1r1B/NQ6/BP2R3/R1nK4 b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 d5 c4 h5 gxh5 Nc6 a5 Nb4 a6 Nxa6 cxd5 Nb4 Qc2 Na2 Qb3 Bf5 Qd1 Bc8 e4 a5 d4 g5 h4 f5 h6 c5 h5 c4 d6 f3 d5 a4 e5 f2+ Kd2 f4 d7+ Ke7 h7 f3 h6 g4 Rh4 g3 Re4 a3 Re3 c3+ Kc2 g2 Qd4 Qa5 d8N Bf5+ Re4 Ra6 Bf4 Rd6 Qe3 Bg6 Nh3 g1N Ng5 Nc1 Nde6 a2 Kd1 Nge2 Na3 Nd4 Bc4 f1N Ng7 f2 Nh5 Ng3 Qf3 f1B Re2 Bg2 Ne4 Ncb3 Nef6 Nc5 Bg5 Ngf5 Qd3 Rd7 Qc2 Rc7 Qb3 c2+ Kc1 Kd8 d6 Bc6 d7 Bd6 Bh4 Ke7 d8B+ Kf8 Ng4 Ke8 Bdg5 Kd7 Ngf6+ Ke7 Rb1 a1R Bf7 Ra2 Ra1 Qa7 Kd2 c1N Kd1 Qa5 Nb1 Rd7 Nc3 Ra3 Ng7 Ra4 Qc4 Nc2 Be1 Rd8 Nb1 Ng3 Na3 Kf8 Qd3 Re4 Ba2 Rf4 Qb3 Nd4 Bf2 Bc7 Nfe8 Ne7 Nf6 Rg8 h8Q Rd6 Qh7 Bb8 Be1 Rh8 Bf2 Ng8 Be1 Bge8 Qf5 Rh7 Qc8 Ngf5 Ngh5 Rhd7 h7 Rc7 h8Q Ke7 Qh6 Bg6 Beh4
q4RbQ/1qN5/2BK4/1Q1Q1Nn1/1p1PR3/b3r3/brRbP2k/Br2N1nb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 a4 b5 h4 f5+ Kf3 Ke5 d3 g5 a5 c4 d6 c3 d7 b3 a6 b2 h6 c2 h7 g4+ Kg2 g3 Kf3 g2 h5 Ba3 a7 b4 h6 Nc6 Qd2 Nd4+ Kf2 f3 Kg3 f2 Rh5 Nf6 Ra2 Re8 h8N Nh7 Rh4 f4+ Kg4 f3 Nc3 b1B Nd5 Ng5 Bb2 c1B h7 Qc7 Kg3 Qb7 d8Q Be6 Qa5 Bg8 Qb5 Re6 Qd1 Bd2 Ba1 Kf5 Rb2 Ba2 Rc2 Re3 Ng6 Rd8 h8Q Rd7 Nh3 g1Q+ Bg2 f1B a8R Qh1 Ng1 f2+ Nf3 Rc7 Re4 Rc5 Rc1 Rc2 Rc8 Rb2 R1c2 Qa8 Rce8 Qh7 Rf8+ Qf7 Bh1 Bh3 Bg2 f1R Bh1 Bg2 Nc7+ Bd5 Qb1 Rd1 Qa2 Rdb1 Qb3 Nh3 Q3c4 Ne6 d4 Ng1 Qcc5 Ng5 Qd6 Rc3 Qd8 Rc5 Ne1 Ba2 Qd6 Re5 Qdd5 Bf3 Rb8 Qd7 Bg2 Qdc6 Rd8 Qcb7 Rf8+ Nf7 Ne7+ Kg5 Bh3 Bh1 Nf5 Re6 Qhe5 Kh5 Bg2 Ng5 Qf6 Bc3 Kf4 Bd2+ Ne3 Kh4 Qh8+ Rh6 Ke5+ Kg3 Bf3 Kh2 Nf5 Rh5 Kd6 Rh3 Bh5 Re3 Be8+ N1h3 Qg7 Ng1 Bc6 Qab8 Qf6 Q8a8 Qh8+
1r1BQ1B1/1nkN2q1/n3b1Nb/q3rPRb/2P1BbnK/6R1/1p4Qb/3R1Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 b5 f4 g5 Kf2 e5 Kg3 d5 a4 Kd7 c4 b3 h6 b4 h7 d3 h5 d4 a5 b2 f6 g4 f7 d2 f5 e4 h6 e3 a6 e2 a7 e1B+ Kh2 b3 Qc2 d1Q Bg2 d3 Nc3 b1N Nge2 d2 Rg1 g3+ Kh3 b2 Nd5 Nf6 Kh4 Na6 Nb6+ Kc7 Be4 Na3 Nd7 Nb5 Nf4 Rb8 a8B Nd6 Bad5 Nb7 Ng6 Bd6 f8Q Bf4 Ra3 g2+ Rg3 Ng4+ Qe7 Qe2 Bg8 d1B Qg5 Qf3 Qe2 Bed2 Qf1 Qc3 Rh1 Bde3 Bd2 Qg7 Ba5+ Kd6 Bb6 g1B Ba5 Qc7 Bb6 Qc5 Bd8 Bh2 Rhg1 Qa5 Rh1 Ne5 Qg4 Bf3 Qgh3 Bh5 Qhg2 Bhg1 Rg5 Ng4 Rh3 Bc1 Rg3 Bh2 Be6 Rg8 h8R Bcd2 h7 Re8 Rf8 Bc1 Bg8 Re5 h8Q Bce3 Nf6 Bd7 Rf7 Be6 Rd7+ Kc5 Rd1 Bd2 Nd7+ Kd6 Bf6 Kc7 Bf7 Bb4 Qe8 Bf8 Be7 Qg8 Bf6 Bh6 Be7 Qf8 Bg8 Qg7 Bd8+
3BN2n/b6Q/Q2r4/1R2P1Bn/4kqrb/1QKR1rb1/q1RPpb2/N4B1b b - - 0 1 illegal: No proof kernel
B1B5/1R2B3/1nkb3N/r1rPR3/n1rQK3/2Pp1rNN/1rQ3R1/1q1q1q1b b - - 0 1 illegal: No possible last move
5B2/1nNq2Rn/b3rNQK/bqP2bQp/q1r1RqB1/1N6/2q3P1/R1B4k b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 a5 c4 d5 b4 d3 f6 a4 f3 d2 f7 Kf4 b6 Kg3 b5 e5 b7 a3 f4 a2 b6 h3 f5 h2 f6 e4 Qc2 d1B+ Nf3 e3 Nd2 e2 Qb1 e1Q Nb3 d4 Bd2 d3 Qc1 Ra4 Qc2 Qe5+ Bg5 d2 Qd3 Qd7 Be2 Qeb5 Qc2 Bb4 f8N Na6 b8R Nc5 f7 Ba5 b7 Nf6+ Kh6 Rg8 Qb1 Bc2 Be3 d1Q Bc1 Bf5 Ne6 Qc2 Nc7 Re8 f8B Re6 Re1 h1Q+ Nh2 Qf1 Bg4 Kf2 Ra8 Kg1 b8Q Nb7 c5 Kh1 Re4 Rc4 Ra7 Qff2 Nf1 Qf3 Ne3 Qf1 Ned5 Qff2 Kg5 h5 Kh6 Nh7+ Nf6 Qfd4 Qb2 Qdf2 Qe5 Qf3 Qf4 Qf1 Qg5 Qf4 Rb1 a1Q Qa8 Nd6 Qc6 Qaa4 Ra1 Ba6 Rb7 Qd8 Qe8 Qc8 Qg6 Qcd7 Rb6 Nb7 Rd6 Qdc6 Rd7 Qd5 Rf7 Qdd7 Rg7
1q1N1br1/n3r3/2Q4N/p5QP/b1K1RBb1/q2BR1RN/n3P3/1Q1q1kqq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 b4 Kd6 d4 f5 Kd2 a5 Kc3 g5 b6 c5 b5 c4 h5 f3 b7 f4 b6 g3 Bg2 g4 Qb3 f2 Bd2 f1B Qb5 f3 Rh4 f2 Bh1 g2 Bg5 g3 Rh3 Nc6 b8R Nge7 b7 Bg4 Qb6 Ra7 Ra4 Nc8 Na3 Rg8 Nc2 Bd7 Qb5 Nb4 Ne3 Qb6 Ng4 Na2+ Kc2 c3 Kd3 c2 Nh6 Qd8 Kc4 Bg4 Ra3 c1Q+ Rc3 Qa3 Re3 Qe8 Bf4+ Qe5 Qb1 Bd7 Rh4 Ba4 Nh3 g1Q Be4 g2 Bd3 Qh1 Ra8 g1Q b8Q+ Ke7 d6+ Ke6 Rg4 Re7 d7 Na7 d8Q Kf6 Q8b5 Qb8 d5 Bg2 d6 f1Q d7 Bf3 Qc1 Qd1 Rg3 Bg4 Qbb1 Qb6 Re4 Qb8 Nf7 Kf5 Qc8 Re6 Qc6 Re7 Rge3 Bf3 d8N Kg4 Nh6+ Kh4 Bg5+ Kg3 Bf4+ Kg2 Qd2 Bg4 Qdc1 Qc8 Rb8 Kf1 Rb3 Qb8 Rg3 Rd7 Qe3 Rdg7 Qec5 Rb7 Qg5 Rf7 Rb5 Re7 Rbe5 Nb4 Ree3 Na2 R5e4
Nq4NB/1qN1B3/b3K1QP/2PR1p2/4kb2/Rrr1nQR1/3r2n1/1r1r1q1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 g5 Kd5 Kf5 h4 a5 b4 d6 c4 d3 h6 d2 c5 g4 b6 f3 b7 g3 b5 a4 h7 f2 h5 a3 h6 a2 b6 g2 Na3 Nc6 b8Q Na5 b7 Nc4 Nb5 Ra3 Nh3 g1Q Nc7 Qg7 Na8 Rc3 Bg2 f1Q Rg1 f6 Qb3 d1R+ Bd2 Qb6 Nf4 Be7 Bh1 Ne3+ Kd4 d5 Rg3 Qf7 Qd6 Ng2 b8R Ba6 Rd8 Qb8 Ng6 Rb1 Qa3 Rbb3 Bg5 Bf8 Qc6 Bd6 e3 Qfb7 e4+ Ke6 e5 Kf5 e6 Ne7 Rd7 Rd8 h8B Bf4 Qd6 Nc8 e7 Nb6 e8N Nc4 Nec7 Nce3 Rd1 a1R Rd3 Re1 Qb6 Reb1 Bh4 Bd6 Ne7+ Kf4 Ng8 f5 Rg6 Kf3 Be7 Bf4 Qe6 Bg5 Ke5 d4 Rd5 Bf4+ Kf6 Rd7 Qd6 Ke4 Ke6 Rd8 Rg3 Rd7 Rd2 d3 Ra2 d2 Qc6 Rd8 Qe8 d1R Qg6 Rb4 Qb3 Rd2 Qd1 R4b3 Ra3 Rdd3 Qe2 Rdd1 Rd2 Rdd3 Qeh5 Rc2 Qhg4 Rdc3 Rd5 Rcd2 Qf3+
Nr2nK2/b3Q2k/q1Rr2P1/1P1BBRnb/5pq1/7n/Q1n2NN1/Rqn4B b - - 0 1 illegal: No possible last move
3Q2NR/rq1nrQN1/k2P3B/2bbq3/2r1B1RK/QPr4p/3nq1R1/1r5N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 h5 e4 f5 d4 a5 g5 c5 g6 Kc7 d6+ Kb6 e5 c4 d5 a4 b3 c3 g7 h3 d7 f3 Kg3 h4+ Kf4 f2 e6 h2 e7 h3 Kg5 f4 Bd2 f3 Ra3 c2 Bd3 f1Q Ra2 c1R Qe1 f2 Na3 Qe2 Nc2 f1R Ne3 a3 Nf5 Rh7 Be4 Rc3 Qa1 Nf6 g8N Bb7 e8Q Ra4 Ng7 Bc5 d6 Rb1 Qf7 Qe7 d8Q+ Ka7 b6+ Ka6 Bc1 Bd5 b7 Nbd7 b8R Rac4 Rc2 a2 Bd2 Qd1 Ne2 Qe8 Re1 h1Q Ng3 Qe2 Rg1 Qhg2 Qb2 a1R Rc8 Ra5 Qa3 Qgf3 Nh1 Qe5+ Nf5 Raa4 Rg4 Rg7+ Kh4 Qfg2 Qff8 Re7 Qf7 Ra5 Bh6 Raa4 Bd3 Ne4 Ng7 Nd2 Bh7 Be6 Rb8 Qb7 Be4 Ra5 Rc1 Raa4 Rcg1 Bd5 R1g2 Bd4 Qc7 Ka7 Nf6 Bc5 Rh8 Ra6 Qb8+ Kb6 Ng8 Ra7 Qd8+ Kb5 Qb4+ Ka6 Qa3+
B2KQq2/NN1N1b2/2PQ4/3rRn1q/q7/4P1nq/Bp1R1brB/k3q1nQ b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 a4 b5 h4 d5+ e6 g5 c3 g4 a5 b3 a6 g3 a7 d3 h6 d4 h7 g2 h5 b2 h6 b4 Ra4 d2 Rh3 d3 Rh2 Bc5 Qc2 d1Q Bd2 Nd7 e7 Bf2 Ra5 b3 Re5 Qf8 Nf3 g1N Bf4 d2 e8N Nc5+ Kg5 f5 e3+ Qe2 Qd1 Ne7 Nd6+ Kd3 c4 Be6 Nc3 b1Q Bh3 b2 Ncb5 Rd8 a8B Bf7 Kf6 Rg8 h8Q Rg2 Nb7 Rd5 Na7 Kc3 Bg3 f4 Be6 Nf5 h7 Qa2 Qg8 Qa4 h8Q Qe1 Qh6 Kb4 Qa1 Kb3 Qhg6 Qd6 Qe8 d1Q Qc1 Ka2 Qh6 Nb3 c5 Qf8 c6 Nbd4 Qc5 Ka1 Qd6 Nde2 Qh5 Rd4 Ba2 Rd5 Qh7 Bh5+ Ke6 Bg6 Kd7 Bf7 Nd2 f3 Nc4 Qc1 Nb6 Qcd1 Bf4 Neg3 Kc8 Qh6 Nd7 Qh3 Qhh6 Qde2 Kd8 Qeb5 Qb4 Qc5 Qd2 Qf8 Qb4 Qh5 Qbd6 N3e2 Qg5 Bh4 Na5 Rg4 Rh3 f2 Rh2 f1Q Nb7 Qf3 Rf2 Qh3 Bh2 Rg3 Rf4 Rg4 Rd4 Bf2 Rd2 Rg3 Re4 Rg4 Qge7 Rg8 Qg5 Rg7 Qg2 Rg3 Qh1 Rg2 Re6 Neg3 Re5
b1q2QN1/b1Rq2Bq/p1b1B1k1/3N1rP1/6P1/n1NrbR2/1KnQ1B1R/3b4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 e5 c4 h5 Kc2 d5 b4 h4 g4 a6 f5 d3+ Kb3 d2 b6 d4 b7 d3 f6 e3 c5 e4 c6 e2 c7 e1Q b5 h3 b6 h2 Be2 e3 Kc3 Nc6 b8B Na5 b7 Nc4 Ra3 Bc5 Bb2 Bd7 c8R Bc6 Ra2 Na3 Ba1 Kg6 f7 Nf6 f8Q Rh3 Bb2 Nd5+ Kb3 Nb4 Ba7 Nbc2 b8N Qh4 Nd7 Qh7 Rc7 Qc8 Nf6 Rg3 Qc1 d1Q Nh3 d2 Rf1 h1B Bc4 e2+ Rf3 e1B Nc3 Bef2 Ng8 Bfe3 Be6 Bb6 Ba1 Bbc5 Kb2 Rb8+ Bb3 Rb5 Bb6 Ra5 Be6 Bcd4 Ba7 Rf5 Bc5 Qf1 Qe1 d1B Qd2 Qd3 Bb6 Bf2 Ba7 Bde3 Bd4 Qhd7 Bg7 Ba7 Bd4 Be3 Nf4+ Kh7 Nfd5 Kg6 Bc5 Qh7 Nb4 Qdd7 Nbd5 Bf4 Bf2 Bfe3 Rf4 Be4 Rf3 Ba8 Nb4 Beb7 Nbd5 Bc6 Kc1 Nb5 Be1 Rf6 Rf1 Bcb7 Na4 Rf5 Bg7 Bf2 Ra1 Nba3 Kb2 Be2 Nac3 Rd3 Rc1 Bfe3 Rf3 Bc6 Bf2 Qh5 Re1 Bd1 Rh1 Qh7 Rh2
2Br1rrB/b1k1r1P1/P1N2N2/rBN1pn2/4R3/2KQnn2/8/QQ1qRbq1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 a4 Kd7 d4 e5 Kd2 h5 f4 b5 g4 c5 a5 b3 a6 e3+ Kc3 e2 f5 e1N f6 b2 g6 c4 f7 h4 d6 h3 d5 h2 g7 Ng2 g5 Ne3 g6 Nh6 g8B Nhf5 Nf3 Nc6 Nfd2 Ncd4 Ra4 Nf3 Ne4 Qb6 Rg1 h1Q Nbd2 b1R Nb3 Ra1 Nf6+ Kd8 d7 Kc7 d8N Bc5 Rb4 Ra5 f8Q Ra7 Bf7 Rg8 Be6 Qh5 Ra4 Qg4 Nc6 b4+ Kb2 Bb7 Bc8 Ra8 Bd2 Qh5 Qb1 c3+ Ka1 c2 Kb2 c1R Bb5 Rb8 Re1 Rd1 Qh6 Qg4 Qh1 Qa7 Qa1 Bb6 Nc5 b3 Kc3 b2 Rd4 b1R Re4 Rb2 Bc1 Rh2 Qf1 Rh7 Qd3 Re7 Qdb1 Qg1 Bd2 Qa8 Bc1 Ba7 d6+ Kb6 d7 Kc7 Nd4 Bd5 Nc6 Bc4 Ba3 Bf1 Bc1 Nc4 Bh6 Nce3 Bg7 Rd2 Bh8 Rd4 Bb7 Rbf8 g7 Rd6 Bc8 Qb7 Nd8 Qd5 Nc6 Qd1 Nb4 Kb8 d8Q Rd2 Qd5 Kc7 Nc6 Rd4 Qc4 Rdd8 Qcd3
8/R2bP1RQ/3nrb2/1bkNB1Nr/1r1Qp1K1/2P1b2B/3R2B1/1bN1n1qq b - - 0 1 illegal: No proof kernel
4bK2/QrR1P1BN/1bQ2nkP/4NN2/n1BQ4/1p1R1nq1/rB3nq1/2nq4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 c5 Kf3 g5 Ke4 b5 Ke5 f5 h4 Kf7 d4 g4 e4 c4 a4 c3 h6 f3 h5 g3 a5 g2 a6 c2 d6 f2 a7 b3 d5 b4 d7 f4 h7 f3 d6 b2 h6 b3 Bc4+ Kg6 Ke6 f1N e5 f2 Qd5 Qg5 Ne2 g1Q Nd2 b1N Ng3 Ba6 d8N Qe3 d7 Bc5 Nf7 Qe4 d8Q Nc6 Ng5 Nb4 Ndf3 Bb6 Bb2 c1N Qc6 Nh2 Nf5 f1Q Qd4 Nf6 Ke7 Nbd3 e6 Rhb8 h8B Nf2 Nh7 Bb5 Bg7 Nc3 Ra3 Na4 Ne5+ Kh5 Kf7 Rb7+ e7 Qg3 Ra1 Qfd3 Rd1 Qeg2 Ra2 Qc2 Rd3 Nf3 Ra3 Qd1 Ra1 Rh8 a8Q Rhb8 Qa7 Ra8 Qce4 Bd7 Qc6 Be8+ Kf8 Nc5 Ra5 Na4 Ng4 Kg6 Rd5 Qc2 Rd7 Qd1 Rc7 Nc5 Qb8 Ra2 Qa7 Na4 Ne5+
Br1q4/1q1Pb3/1B3rq1/PbkNNn2/2B1q2Q/p1N1b1RK/QnR3R1/1q6 b - - 0 1 illegal: No proof kernel
BQq2N1n/2nP4/PbN3k1/R4q1n/5b1B/2BNnp2/b2rRRr1/4K1Qn b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 f5 a4 Kf7 e4 g5 d4 c5 h6 b5 h5 c4 e5 b3 a5 b4 d6 c3 d7 f3 d5 b2 d6 b3 a6 c2 h7 f2+ Kd2 g4 h6 f4 e6+ Kg6 e7 f3 e8R g3 Re7 g2 Re1 Ne7 Na3 b1N+ Ke3 b2 Bd2 c1N Nc2 Nd3 Ne2 g1B Ned4 Na3 Bh3 b1Q Nb4 Rg8 h8Q Nb5 h7 Nc7 Be6 Qc2 Qe5 Bh6+ Qf4 Qc5 Bc3 Qf5 Kd2 Qe8 d8B Nd7 Bd5 Nf6 Ra5 Be6 Qa1 Nh5 Ndc6 f1N+ Kd1 Bd4 Re2 Nf2+ Ke1 Ne3 Nd3 Bb6 Rh2 Nh1 Rhf2 Rc8 Qh2 Bf4 d7 Qef8 Be4 Ba2 h8N+ Kg5 Qg1+ Kh6 Qb2 Bc5 Qb8 Ng6 Bb4 Ne8 Nd4 Bb6 Qa7 Rc2 Bh4 Rd2 Bc3 Nc7 Ba8 Qc8 Qb8 Kg7 Nc6+ Kh7 Nf7 Nh8 Nfd8 Rg2 Ne6 Kg6 Nf8+
1RQbb2B/KN1P1p2/Q1b1B3/3b1n2/N2rN2q/R3n1qP/1n4QR/3r1bk1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kf6 e4 Kg5 a4 Kh4 a5 g5 d6 b5 d7 c5 h3 f3 Ke3 Kg3 e5 g4 a6 c4 d5 b3 Kd4 Kf2 e6 b4 a7 b2 e7 b3 Kc5 g3 h6 g2 d6 c3 e8Q c2 h7 Nf6 Ra6 Nc6 Rh2 Ng4 Bh6 c1N Rh1 Ne7 Bg5 Nd3+ Kb5 Nf5 Bc1 Be7 Nc3 b1B Na4 b2 Rh2 Nge3 Ne2 Ba2 Ng3 b1B Ne4+ Kg1 Qd2 f2 Bb2 Bd5 Bg7 Rf8 h8R Nb2 Bc4 f1B Rg8 Ba2 Bh8 Bc6+ Kc5 Bf6 Be6 Bad5 Ra5 Qe7 d8N B8d7 Nb7 Rd8 Kb6 Bg5 a8Q Qf6 Qe7 Be8 Ka7 Qh6 Qd7 Qh4 Qdc8 Rd7 Rb5 Bd8 Rg3 Rg8 Qa5 Rg4 Qa6 Rf4 Rb3 Rg4 Ra3 Rf4 Rg8 Rg4 Nd2 Rd4 Ne4 Bb3 Rg3 Rd1 Qab8 Nd5 Rf3 Ba2 Rfb3 Nde3 Nf6 Kf2 Ne4+ Kf3 Rb4 g1Q Rbb3 Bc7 Na5 Bd8+ Rb7 Qg8 Rh1 Kg2 Rh2+ Kg1 Qbc7 Qgg3 Rb8 Bb7 Qc2 Bc6+ Nb7 Re7 Bb3 Re5 d7 Red5 Qd2 Rd4 Be6 Bad5 Qg2+
q4Q1n/1R1pK1Br/b2P1r1N/1RbqB3/QQ1P2b1/1N2Bkbb/8/3rR2n b - - 0 1 illegal: No proof kernel
2Rn2RB/nbpnn3/1qQP1b1N/qQR1NnQ1/Pr6/5B1K/1kr3r1/3N4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 g4 Kd6 f4 h5 Kf2 b5 Kg2 e5 a4 h3+ Kh2 h4 g5 b3 f6 b4 g6 b2 g7 b3 f7 e4 f5 e3 f6 e2 Ra2 e1N Ne2 Nc2 Nf4 Ne7 g8R Nd7 Rg5 Bg7 f8N Nb4 f7 Rg8 Qe2 Nbc6 N8e6 Rb8 f8Q Rb4 Rg6 Bf6 Ng5 Bb7 Nc3 b1Q Nd1 b2 Qh6 Qa8 Nd3 Nd8 Ne5 Qa5 Bg2 Rg7 Qb5 Rg8 Kg1 h2+ Kf1 h3 Bf3 Rg7 Kf2 Rg8 Kg3 Rg7 Rf1 h1R Kh4 h2 Kh3 Rg1 Ra3 h1N Rc3 Rh7 Rc5 Ng3 Rg8 Rg2 Bd2 Qg6 Bc3 b1N Rg1 Na3 Rh8 Ndc6 Rc8 Ngf5 Bb2 Nd8 Bc3 Ng8 Bb2 Rc2 Rg4 Rg7 Ngf7+ Ke7 d6+ Ke6 Qg5 Nge7 Nh6 Rg8 Qc6 Nb5 Ba1 Na7 Qb5 Nf8 d7 Rg7 d5+ Kd6 Qc1 Rg8 Rf4 Qg1 Bb2 Rgg2 Rg4 Qd4 Rg8 Qe3 Rc4 Qeb6 Rc5 Nf7 d8Q+ Nd7 Qe8 Nd8 Nc6 Be5 Qg5 Bf6 Nd4 Ke5 Ba1 Nf8 Qec6 Nd7 d6+ Nd5 Qd3 Bh8 Bg4 Bg7 Qdb5 Ke4 Rc4 Kd3 Nf3 Nde7 Bd4 Rcb2 Bc3 Kc2 Rc5 Kb3 Bf6 Rbc2 Ne5 Bh8 Bg7 Ka2 Bf3 Ka3 Bf8 Bf6 Bg7 Kb3 Bh8 Ka3 Ne3 Kb2 Nd1+
4brr1/1PbQKB1R/2P1Q3/pN5k/1RN3Rn/2Bnr3/r1r1N2q/q1Bb4 b - - 0 1 illegal: No possible last move
b5RQ/1pbq4/n5B1/NQNrqr2/nBrkb2P/1r1r2P1/K7/Q1R1BN2 b - - 0 1 illegal: Other
qB3Q2/3r1B2/rbn1n1N1/1N1Qn2K/r7/RbnbR3/qk1PP1p1/NB2R3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Ke7 Kg3 Ke6 b4 Kd5 h4 a5 h5 f5 b6 g5 b5 c5 h6 f4+ Kh2 c3 b7 Kc4 b6 g3+ Kg2 a4 Kf3 a3 e6 c2 Kg4 Kb3 h7 a2 Nf3 g2 Rg1 c4 Qe1 c3 Rh1 g1R+ Qg3 Nc6 b8Q Ra6 b7 Bc5 Rh4 Ne5+ Kh5 g4 e7 Bb6 e8B Ne7 Bg2 N7c6 Nh2 f3 Qa7 f2 b8R f1B Qf7+ Be6 Qe3 g3 Bb2 c1N Re4 Ncd3 Qef2 c2 Nf3 c1N Ne1 Nc5 Na3 Rh1+ Bh3 Bg2 Nb5 Ra4 Rb7 Qa8 Ra7 Bd5 Qb7 Ne6 Bf7 Rd8 h8N Rd7 Nc2 Rf1 Rb1 a1Q Ng6 Na2 Re1 Nc3 Re3 Qa2 Bf5 Bge4 Ra5 g2 Na1+ Kb4 Qf4 Bb3 Qh6 Bd3 Qf8+ Kc4 Ba3 Rf4 Bd6 Rd4 Bc7 R4d6 Bb8 Kb4 Nc7 Ka3 Nb5+ Kb2 Be4 Nb4 Qd5 Nbc6 Ra6 Ra7 Ra5 Ra6 Bf5 Rd7 Be4 Rd4 Ra3 Rda4 Bf5 Bdc4 Bc2 Bd3 Bb1
kN1K2R1/2n4r/3BqRQr/qNB2b2/2R2PB1/1N1b2p1/Pbq1n1Qr/6b1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 g5 Kd4 b5 Ke5 c5 d4 Kc7 h4 Kb7 f4 g3 f6 c4 h5 c3 f7 g4 d6 g2 d5 c2 d7 g3 Ke6 b3 h6 b2 d6 b4 h7 b3 Rh3 Nf6 Qe2 Ne8 Rh6 Ra7 Be3 c1Q Bb6 Nc6 Nc3 b1B Nb5 b2 Bc5 Qc2 Rf6 Qa5 Nf3 g1B Bh3 Ka8 Qg2 Bg7 f8B Nc7+ Kf7 e5 d8Q e4 d7 e3 Qe8 e2 d8N e1Q Bfd6 Qee2 Bg4 Nd4 Nc6 Qe5 Qg8 Ne2 Nb8 Bf5 Nfd4+ Qd5+ Ke7 Rb7 Ba7 Qe6+ Kd8 Qd1 Bb6 Nd5 Rf7 Bbd3 Qf2 b1R Qe8 Rb2 Rc1 Nec3 Nb3 Ra7 Qf1 Rh2 Qg2 Ne2 Rc4 Bb2 Rf6 Qc2 Qg8 Rg7 Qe8 Rg6 Qg8 Rgh6 Qe8 Rg8 h8R Rg7 Qg6 Re7 Rg8 Reh7 Nc6 Nc7 Bbc5 Qe3 Nb8+ Qe4 Qf1 Qe6 Qg2+
r1B1r3/knq1Q3/Rb1R1R1N/b1q1qQN1/b4p2/B2P1Nn1/4P3/1Kn2Qq1 b - - 0 1 illegal: No possible last move
1R2Q2n/q2B3K/N4q2/1B2q1rb/3P1qr1/k2NNPbb/1n3pQ1/QR4Bn b - - 0 1 illegal: No possible last move
K6k/2RQq2n/N2b1B2/r4B1b/2PR1N1P/Qbpn2Qr/1q4R1/2qrrN2 b - - 0 1 illegal: No proof kernel
R4k2/3K1bRQ/b4q2/1Nb2nB1/B1pn2Bq/1NP3q1/1brP1n2/1R1N1r1Q b - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 e4 dxe4 f4 exf3 hxg5 Bf5 Bd3 Be6 Bf1 Bc8 Kf2 f5 Ke3 c5 Kf4 h5 Ke5 a5 b4 f2 g4 f4 b6 e6 b5 h4 b7 h3 g6 a4 g7 f3 c3 a3 b6 h2 g5 a2 g6 Qh4 Be2 f1B Ba3 f2 Bg4 Bc4 Nh3 f1Q Rg1 h1N Nf2 Nh6 g8B Nf5 g7 Qg3+ Kf6 Nc6 b8N e5 b7 e4 Na6 e3 b8R e2 Qc1 e1Q Nd1 Ra7 Ra8 Bf7 Bb4 Rh5 Na3 Ncd4 Rb1 a1B Nb5 Nf2 Bh7 c4 g8Q Qe4 Be7 Bb2 Nc5 Rh1 Nb3 Ra2 Bg6 Qef4 Qh7 Qfh3 Bd8 Bc5 Rg2 Kf8 B6h5 Bfe6 Be8 Rf1 Bd7 Qff3 Rg1 Qgh4+ Ke5 Bf7 Bg5 Qh3g3+ Kf6 Bg6 Be8 Ba6 Rg2 Nc2 Ke6 Ncd4+ Kd7 Bh5 Qc2 Bf7 Qe4 Qe5 Rg3 Qff4 Qh1 Qf6 Re3 Qfg3 Re7 Bd5 Rg7 Bf7 Qc6 Bba3 Qb7 Rc2 Qh1 Bb2 Na7 Qf3 Kc7 Bb7 Ba4+ Bc8 Nb5 Qg2 Ra7 Ba6 Kd7 Qgg3 Ra8+
3b1Qrb/r3n3/1b1B2N1/2N2RBb/1NprP3/QqkqR2q/BR1P3n/6K1 b - - 0 1 illegal: Other
3nrqBN/3Rbn2/NQb1nr1Q/2q2Nbp/4P1Bn/P1Q1B3/8/2q1Rk1K b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 g4 b5 Kg2 f5 e4 c5 g6 h5 a3 c4 g5 c3 g7 b3 g6 b2 Be3 c2 Bc1 f3+ Kh2 f2 Bh6 c1B Bh3 f1N+ Kg2 b4 Qg4 f4 Ne2 b3 Qf3 Ra6 Bf5 Bd7 Qh3 f3+ Kg1 Qe7 Nd2 b1Q Bg4 b2 Nb3 Bg5 Rh2 f2+ Kh1 Bc6 Ng3 Qc1 Nc5 b1N Ra2 Qa7 Rd2 Nc3 Rg2 Rb6 Na6 Bfe7 Re2 Nb5 Nf5+ Kd7 d6 Ke6 d7 Ne3+ Rg1 f1Q d8Q Ng2 d5+ Ke5 d6 Kf4 d7 Nc7 Qc3 Nh4 Qf8 Ne6 d8N Qf2 Nf7 Qa8 Rd1 Qc5 Ne3 Kg3 Qd8 Nf6 g8B Nfd7 g7 Ne5 Qd6 Nd7 Qdd4 Nd8 Qdb4 Nf8 Nf5+ Kf4 Qbd4 Nfe6 Qg1 Qb8 Rd7 Qbd6 Bh7 Re8 g8Q Qb8 Nh8 Nef7 Qf8 Qbd6 Bg7 Qb8 Bd4 Qc8 Qh6 Qa8 Bh3 Qb8 Be3+ Kf3 Bg8 Qf4 Ng7 Qf6 Nf5 Qg7 Rc2 Qf8 Ra2 Qd2 Qb1 Ke2 Qbb3 Qc2 Bg4+ Kf1 Qbb4 Qc1 Qa5 Rb2 Qb6 Rf2 Re2 Rf4 Nd4 Rf6 Nf5 Qe1 Qcb2 Qd2 Qc3 Qc1 Re1+
BQb3KQ/bq1kr1nN/1B2R3/3rNQPq/3R1pP1/2q1r3/Br2n1N1/4n3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 d5 g4 h5 e4 a5 b4 a4 c4 h4 b6 h3 b7 h2 c5 a3 b5 a2 b6 d3 c6 d4 c7 d2 e5 d3 e6 Nf6 e7 Nbd7 b8Q Rh7 b7 Ra3 Nc3 Nh5 Nce2 Ng7 Qc2 d1N Be3 d2 Bg2 Nc3 Bb6 Nc5 Rd1 Kd7 e8N a1Q Qb1 Qe7 Nf6+ Kd6 Qa8 Nd3 b8Q Ra2 Re1 d1R Qb5 Rb2 Qba5 Rh6 Nh7 Re6 Qe5+ Kd7 Qaa5 Ne8 Qh8 Ng7 Qe5 Qf7 Qc5 Re7 Qe5 Qh5 Qf6 Ba6 c8B+ Ke8 Be6+ Bc8 Ba2 Kd7 Nc1 Ne2 Nh3 Rdd2 Rhf1 h1Q Qg6 Nc3 Re6 Ne2 Rd1 Ne1+ Kf2 f3 Ke3 f2 Ba8 f1R Nd3 Rb3 Nf4 Rbb2 Ng2 f4+ Ke4 Rf3 Ke5 Re3+ Kf6 Qc1 Qf5 Qc7 Nh4 Qhb7 Ng2 Qc3+ Ne5+ Ke8 Bc5 Rd5 Rd4 Kd8 Ng6 Kd7 Bb6 Re8 Kf7 Bc5 Bb3 Re7+ Kg8 Rd3 Ba2 Re3 Ba5 Ba7 Bd8 Re5 Bb6 Re3 Ne5+
b1n2N2/3r3q/4bB2/bNQ1rPQ1/1N4Bk/1bK1pr2/5q1P/RRn1R1Qq b - - 0 1 illegal: No possible last move, all moves rejected
2r4q/R6N/1Qnb2Rq/q2kpb1N/bB2R1P1/1BPrr3/3B3q/K2NnQ2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 d5 b4 h5 f4 a5 c3 e5 Kc2 a4 Kb2 h3 b6 h4 b7 a3+ Ka2 d3 b5 d4 b6 d2 f6 Ke6 f5+ Kd5 f7 d3 f6 h2 Nh3 Bf5 Qe2 d1R Nf2 h3 Bd2 Bd6 f8B Ne7 f7 Na6 b8Q Nc6 b7 Nc5 Be7 Ra4 f8N Re4 Nh7 Re3 Qa7 Qf8 b8R Qh6 Qb6 Rc8 Rg1 h1Q Bf8 Re1 Nd1 h2 Rb7 Qg2 Rg7 h1Q Rg6 Qgh2 Bg2+ Rf3 Qf1 Re3 Be7 Q2h4 Bf8 Q1h2 Bh1 Qf6 Rg2 Qh8 Re2 Ne6 Bg2 Ned4 Bh1 Nc2 Bg2 Bb8 Bb4 Ne1 Bh1 Re4 Re3 Rd4 Re4 Bd6 Nb2 Rg3 Bf3 Rh3 Bd1 Re3 Bb3+ Rc4 Bc1 d2 Nd1 Rd3 Nf2 d1B Nd2 Bc2 Nd1 Re3 Rf4 Rd3 Ne4 Re3 Ng3 Rd3 Ba4 Re4 Bd2 Ree3 Re4 Bb3+ Kb1 a2+ Kb2 Bc4 Nh5 Bb5 Bc2 Ba4 Rb1 Ra8 Ka1 Rf8 Rb3 Rc8 Ra3 Bb5 Kb2 a1Q+ Kb3 Re8 Ra7 Qa5 Kb2 Ba4 Ka1 Rc8 Bb3+
b4b2/3RQ1qQ/1k1b1RN1/1r1Pnn1B/q1q1pK1P/BB6/N1r2R2/bnN5 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 c5 f4 Kc7 h4 e5 a4 b5 d4 g5 d6+ Kb6 d5 c4 d7 e4 f6 b3 f7 b2 f5 b4 f6 b3 Bd3 c3 Qd2 c2 Qh2 g3 Ra2 g2 Nc3 b1Q Qf4 g4 Bf1 g3 Bc4 b2 Nge2 Qc7 d8R Bb7 Rd7 Nc6 Rf1 Nge7 Qf5 Qa1 Qh7 b1N Bb3 Ne5 Ba3 g1Q+ Kf4 g2 Nc1 Ra5 Rb2 Qc6 N3a2 Ba8 Rf2 Rb5 a5+ Ka6 Rf1 Nf5 Rf2 Bd6 f8N Qc4 Ng6 Rc8 f7 Qd1 f8Q g1B Rf3 Bgc5 Qfe7 Rc7 Rf2 Kb7 a6+ Kb6 a7 Rc6 Ne2 c1B+ Rd2 Bb2 Nec1 Qdc2 Rf1 Qa4 Rh2 Qcc4 Rhf2 Bb7 a8B Bb4 Qe6 Bf8 Qee7 Bd6 Nh8 Rcc5 Ng6 Bc6 Bb7 Bc3 Bc8 Ba8 Rd8 Bb2 Be6 Bc3 Rd7 Qb2 Bf7 Rc8 Rf3 Qg2 R1f2 Ba1 Nh8 Qg7 Bh5 Qf1 Ng6 Rc2 Kg5 Qfc4 Rf4 Ne3 Rf6 Nf5 Kf4
5KB1/2N2Br1/QRbB1b2/N2P1nr1/2p1bq2/1n1q4/R2PQk1q/q1Nr3Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 c5+ Kc4 Ke5 g4 Ke4 b4 a5 e3 h5 b6 a4 b7 f3 g5 f2 g6 h3 b5 h2 b6 f4 g7 a3 Qe1 a2 Qd1 h4 Qe2 f3 Bh3 f1R Ba3 f2 Be6 h3 Bf7 Nc6 b8Q Qf6 b7 Qf4 Qa7 Rd1 b8Q f1Q Qa6 Nge7 g8B Bb7 Qd8 Nf5 Qh4 Bh6 Bb4 Bg5 Na3 Bf6 Qh7 Ke5+ e4 Na5+ Kb5 Kd4 e5 Ra7 e6 Nb3 e7 Bc6+ Kb6 Q1f3 e8N Qd3 Nc4 Rd7 Qh4 Rh5 Nc7 Rg5 Na5 c4 Bd6 Re7 Rb1 a1Q Rb2 Rd7 Ra2 Re7 Be6 Reg7 Bef7 Bd7 Kb7 Bb5 Kc8 Bc6 Qeh5 Ke4 Ne2 Rg2 Nc1 R2g5 Rg1 h1Q Rg2 h2 Qe2+ Ne3 Qh6 Qg1 Rf2 h1B Qh3 Bf3 Qh1 Bg2 Rf3 Qgh2 Rh3 Bf3 Rh6 Bg2 Qee1 Kf3 Qe2+ Kg3 Rg6 Nf5 Rh6 Ba8 Kd7 Be4 Ke8 Bc6+ Kf8 Bd8 Re6 Bf6 Re8 Qdd4 Rb8 Qd3 Qh5 Kf2 Rb6 Qff3 Qg4 Qff4 Qe2+
2qq1Bk1/2Q1rR1r/4rb2/p1N5/n1R3qN/1b1PQ2N/B2Kn1PB/1b1bQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 h5 b4 c5 b6 a5 b7 f5 d6 Kf7 e5 h3 d7 c4 b5 f3 b6 h2 Qc2 h4 Nh3 f2+ Kd1 c3 Bd3 f1B Be2 f4 Bb5 f3 Nf2 h3 Ne4 f2 Nc5 Rh7 Bb2 Bg7 Ra2 Bf6 Qe4 Na6 b8Q Ne7 e6+ Kg8 b7 Ng6 e7 Ra7 Ba3 Nf4 Rc2 Bc4 Qe3 f1B Qc7 Bb3 b8B Bd3 Rf1 h1R Bc6 h2 e8Q+ Kg7 Bb7 Ne2 Bd5 Bb7 Bg8 Bf3 Ke1 Kh8 Rc1 Bdc2 d3 Kg7 Nd2 Bb1 Q8e4 c2 Bc4 Bg4 Nf3 Rg1 Qe8 h1Q Nh4 Qh3 Kd2 Bh5 Q8e5 Qg4 Q5g3 Rb7 Qe1 Rb6 Rf4 Re6 Rf5 Kg8 Rf1 Ba4 Ba2 Bb3 Bb4 Rh1 Rf4 Rhe7 Rf3 Qe8 d8N Qf8 Nf7 Qd8 Ng5 Rh2 Nb7 Nc5 Nh3 Na4 Nc5 Rh1 Rf4 Rh2 Q1f2 Rh1 Rf1 Rh2 Rc4 Rh1 Qe1 Rh2 Qd1 c1Q+ Ke1 Qc8 Qd6 Qb2 Bc7 Re8 Nd7 Qg3+ Nf2 Bd4 Ng6 Nc1 Qb6 Rh4 Bf8 R8e7 Nc5 Bh8 Bf4 Qd4 Kd2 Qdd8 Qde1 Bhd1 Qc7 Ne2 Nh3 Qg4 Bh2 Rhh7 Rf7 Bf6 Nh4
1b2R3/q4Rn1/nkN2q2/p1n3Q1/1b1b2NQ/1P2rN1q/6P1/BrBb1KQB b - - 0 1 illegal: Other
4q3/2nqr1n1/rb1Nb1qP/2Bb2p1/3R2R1/PBQn1N1Q/2K4b/kN1R1B2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Kd7 e4 Kd6 d4 c5 Kd2 g5 h6 f5 h5 b5 a3 f3 h7 f2 h6 c4 Kc2 b3+ Kb2 f4 Ra2 b4 Bd3 f1Q Ne2 f3 Bc2 c3+ Ka1 f2 Bb2 Ra6 Ng1 Qb5 Qd3 f1N Qd1 Qdd7 Nf3 Nh2 Ne5 Ng4 Qd3 Ne7 Rg1 Nf5 Rh1 Nf2 Rd1 Ng7 Qh3 Nd3 Nf3 Be7 Bc1 Re8 h8Q Bd8 Be3 Bb6 Bg1 Re7 e5+ Kc7 d6+ Kc6 e6 Kd5 Be3 Kc4 d5 Qe8 Bc5 Qbd7 Rg1 Bb7 Bd1 Ba8 Rag2 c2 Rh1 c1B Rg4+ Bf4 Bc2 Ra5 Rd1 b2+ Ka2 Ra6 Ba4 Qb5 d7 Bc6 d6 Bd5 d8N Qbd7 Rgg1 Bh2 Nf7 Ra7 Rg2 Na6 Rgg1 Nc7 Bb3+ Kb5 Rg4 Ra6 Nbd2 Ka5 Kb1 Kb5 Kc2 Ka5 Bc4 Ka4 Nb1 b3+ Kd2 Qb5 d7 Qc6 d8R Qb5 Kc3 Qbd7 Nbd2 b1Q Nd6 b2 Ba2+ Nf4 Bc4 Qf5 Bf1 b1B Kb2 Bc2 Nb1 Qfg6 Kc1 Kb3 Rd4 Rf7 e7 Ka2 Kd2 Bcb3 Kc3 Qg8 e8B Re7 Bf7 Nd3 Kd2 Bbc4 Kc2 Ka1 Be6 Ba2 Bf7 Qge8 Be6 Ba8 Bc4 Bd5 Bb3 Nf5 Qe5 Ng7 Qe1 Be6 Qc3+ Nb2+ Rde4 Nh5 Nf5 Qc8 Rd1 Qcd7 Nd6 Ng7 Ba4 Bac4 Bb3 Bcd5 Qe1 Nd3 Rd4 Ra4 Qb4 Ra6 Qc3+
2rr1bq1/bn4B1/k1q2QP1/Q1B1R1Np/B3bb2/1P4Nn/3RNr2/1n1QK3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Bh6 d4 Kd7 e4 a5 b6 f5 e5 c5 g5 c4 b7 Kc7 b3 Kb6 g6 h3 d6 f3 e6 f4 d5 f2+ Ke2 h2 d7 a4 e7 c3 e8N c2 d6 f3+ Kd3 a3 Bg5 c1B Qe1 a2 Qe5 Na6 b8Q+ Bb7 Nc3 Ne7 Bf6 Nd5 Nh3 Nc5+ Kc2 Bcd2 Kd1 Nf4 Ng5 Nh3 Ng7 Bf4 Bb5 f1N Ba4 f2 Qc7+ Ka6 Nh5 Rc8 Ng3 Nd2 Re1 f1R Qe7 Qf8 d8B h1Q d7 Rf2 Qed6+ Bc6 Bde7 Nb7 d8Q Bg7 Q6d7 h5 Bc5 Qd5 Rc1 Nb1+ Bfd4 Rg8 Rc2 Qdd6 Re8 Be4 Ke1 Qc6 Nce2 Qf7 Rb2 Rf8 Bc3 Qg8 Qd1 Bh6 Rd2 a1B Ba7 Bb2 Bf6 Ba1 Re5 Bd4 Bh8 Bde3 Qf6 Rfd8 Bb6 Bf8 Bg7 Bec5 Ba7 Bcd6 Bd4 Bc5 Be3 Bb6 Bc5 Ba7 Qa5+
qqbbn1r1/2RRQ3/1P5n/1bBN1kqP/4Qp2/NB2rB2/3r2Q1/2Kb3R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kf6 e4 d5 c4 a5 h4 g5 b6 d3 b7 a4 c5 g4 h6 f3 h7 d4 h5 g3 c6 a3 e5+ Ke6 b5 f5 b6 a2 c7 f2 Qc2 g2 Ba3 f4 Be2 f1B Bf3 Nd7 b8Q Kf5 e6 Be7 Ne2 g1Q Qb7 Ndf6 Bc5 Nh6 Na3 Qg5 Rc1 a1Q Nc3 Rg8 h8R Ne8 Rh7 Qd6 Qa7 Bd8 e7 Qe5 Qa2 Rb8 Kd1 d2 Nd5 Bb5 Kc2 d1R Qb7 Ng7 e8Q Ra8 Qe7 Ne8 Rg7 Rd3 Qc6 Re3 Kd1 d3 Qg2 d2 Kc2 Be6 c8B d1B+ Kd2 Ra6 Rc2 Qa2 Kc1 Qb8 Bb7 Ra7 Ba6 Rd7 Qa8 Bc6 Bc4 Bb5 Bb3 Rd6 Qc6 Bc8 Nf6 Re5 Rd2 Re3 Qec7 Bba6 Nc2 Qa5 Na3 Rdd3 Q7d6 Bab7 Rc7 Ba6 Qe7 Bb5 Qb7 Qaa8 Qc6 Re2 Qb7 Rde3 Rdd7 Rd2 Qd5+ Re5 Qc4 Re1 Nd5 Re3 Qce4+
1qNn4/k1rR1qnQ/1P1p4/2bb4/Br1P3q/1B1b1R1N/RK2N1n1/1B2nQ2 b - - 0 1 illegal: No possible last move
q1N2nR1/B2Q4/P2bqNqR/1K5b/QP3rN1/1Bk1nQq1/2pB4/rn1r4 b - - 0 1 illegal: No proof kernel
1KR1q2b/3q3r/PQ1B2P1/Qq1n4/2N2N1N/1Bb3pq/1Qb2nrn/2B2Rk1 b - - 0 1 illegal: No possible last move, all moves rejected
Q1q3q1/2n1kb2/p4BQP/q1RrN1nb/2Qb2Pn/1K5N/B1rR4/1n1B1N2 b - - 0 1 illegal: No proof kernel
k1r1Q1Q1/2nq1N1N/pPr4q/1r1Pn3/R2n3R/2BR3r/1bbBQ1B1/b4K2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 g4 c5 e4 Kc7 b4 Kb7 d6 h5 g5 f5 e5 h3 g6 a6 e6 c4 d5 h2 b6 c3 b5 c2 g7 f3 d7 f4 e7 h4 e8Q h3 Qd3 f2+ Ke2 f3+ Kd2 Nf6 g8Q Bg7 Qb3 Nc6 Qg6 Ne5 Qa4 Rh6 Ra3 Ne8 Qh5 Rc6 Rd3 Nc7 Bg2 f1R Nc3 f2 Ke2 Qe7 d8R Qd7 Bd2 c1B Re8 Bb2 Ne4 Rb1 Ng5 f1N N1f3 Ne3 Nh7 Nf5 Nfg5 Nd4+ Kf2 Rb8 Nf7 Ka8 Qe2 Rbc1 Re6 R1c4 Ra1 h1R Rh6 h2 Rh4 Rc3 Ra3 Rhc1 Ra1 h1Q Ra2 Qhh3 Ra3 R1c2 Kf1 Qe3 Ra1 Qh6 Ra3 Qe7 Ra2 Bf5 Ra1 Qd7 b7+ Ka7 Ra3 Rc8 b8B+ Ka8 b6 R6c5 Qa5 Rb5 Ra4 Ra3 Qb4 Rc6 Qbf8 Ba1 Bc3 Be4 Qe8 Bf6 Rd1 Bc2 Bd2 Rh3 Bc3 Bg5 Rd3 Bc1 Bd2 Bcb2 Bc3 Nce6 Bd6 Nc7 Bdb4 Qh5 Bd2 Qh6 Bbc3
q2Rr3/1Q1b3p/2B1k1r1/BRN1n3/n2r4/nn1QNPR1/Q4KbP/2q3Bb b - - 0 1 legal: proof: e4 b5 d4 c5 a4 cxd4 axb5 f5 g3 fxe4 Bf4 e6 Bg5 Bd6 Bc1 Bf4 gxf4 Bb7 Nf3 Ba6 Ng1 Bc8 b4 Kf7 c4 a5 f5 d5 f6 g5 c5 e5 b6 a4 b7 d3 b5 g4 b6 d2+ Ke2 e3 c6 d4 c7 g3 Kf3 a3 Bb2 g2 Qc1 d1B+ Ne2 g1R Bh3 a2 Bc3 d3 Qc2 d2 Bf1 Ra4 Bg2 e4+ Kg3 Ke6 f7 Rd4 f8Q Nd7 b8Q Ne7 b7 Nb6 Qd3 Ng6 Qa3 Re8 Nc1 e2 Nb3 e1Q Ba5 e3 Nc3 e2 Nd5 Ne5 Rb1 a1N Ne3 Bd7 c8R Na4 Qa2 Bc2 Qc7 Qc1 b8B d1B Qb7 e1N Ba7 Bf3 Rc3 Qa8 Nc5+ Kf6 Rb5 Nb3 B7b6 Bb1 Ba7 Nc2 B7b6 Na3 Ba7 Rd1 B7b6 Rd2 Rd1 Re2 Bh1 Bg2 Ba7 Bf1 Bf3 Bg2 Bc6 Re1 B7b6 Rg1 Nc4 Bc8 Nd7+ Ke6 Qde2 Bh1+ Kh3 Rgg8 Rg3 Rd2 f3 Rg5 Bg1 Rg6 Ne3 Rd6 Rd4 Bd3 Qed2 Be2 Qd3 Rd5 Rgg4 Rd6 Kg3 Bf1 Kf2 Bfg2 Rg3 Rd5 Rf4 Rd6 Rf7 Rd4 Nc5+ Kd6 Rc7 Bd7 Rc8 Ke7 Rd8 Kd6 Na6 Ke6 Nc5+
1b2B1Q1/nB2RnP1/3BP2p/2Nq1R2/3kQ1r1/N1r2n1b/bNr2q2/K3R2r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Ke6 Kc2 Ke5 b4 d5 Kb2 a5 e4 f5 g4 a4 c5 f3 b6 f4 g6 f2 g5 f3 c6 d3 c7 d2 g7 a3+ Ka2 d4 b5 d3 g6 Nc6 b7 Na7 b8N Bd6 b6 Nh6 g8Q Bh3 c8B Nf7 b7 h6 g7 Kd4 Qe2 d1R e5 d2 Na6 Bb8 e6 Qf6 Bg2 f1N Bd7 f2 Nc5 Nh2 Be8 f1B Bd5 Nf3 Rh2 Qd8 Rf2 Qh4 Be4 Re1 B4c6 d1R Bf4 Rd3 Bd6 Rc3 Bd5 Bfg2 Rf1 Qf2 Bdc6 Bc7 b8R Rc2+ Rb2 Bb8 Bb7 Rc3 Rb5 Rec1 Re1 R3c2+ Kb3 a2 Na3 Rd1 Rb1 a1Q Rb2 Qc1 Ka2 Qg5 Ra5 Rc3 Rb1 Qd5+ Ka1 Bf5 Rc1 Bb1 Nh3 Ba2 Nf4 Bh3 Nfd3 Rc2 Nb2 Rc3 Rg1 Rc2 Rg5 Rh1 Re1 Rc3 Rf5 Rc2 Qh7 Rf8 Qg8 Rc3 Bec6 Rc8 Be8 Rc2 Ne4 R8c3 Nc5 Nc6 Rb5 Ra4 Rb6 Na7 Rc6 Rac4 Rc7 Re3 Rd7 Re4 Rc7 Rg4 Re7 R4c3 Qe4+
1q1NR3/1r2P2K/rk5R/RB3Q1N/5qn1/P2bq3/br1QQb1p/B1n1B2b b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Ke4 f5+ Ke5 c5 e4 Kc7 d4 h5 g4 b3 d6+ Kb6 d7 b2 d5 h4 d6 c4 g6 f3 g7 f4 Kf5 b4 Kg6 f2 g5 b3 e5 f3 e6 c3 Nd2 b1B+ Ne4 c2 Ne2 h3 N2g3 b2 Nc5 Bb7 Qe2 Na6 Nh5 Nb4 Bd2 Nd3 Be1 Nh6 g8Q c1Q Qf7 Qb8 Qf5 Rh7 d8Q+ Rc7 d7 Ra6 Rh2 Ng4 Kh7 Qe3 g6 Nc1 g7 Ba8 Nb7 Bc5 g8R Bd4 a3 Ba2 Re8 b1R e7 Rb2 Rb1 Nb3 Rd1 Nc1 Rd2 Bc5 Rd5 Bd4 Ra5 Bc5 Bg2 f1Q Rh1 f2 Bc6 Bd4 Bb5 Bc5 Qc8 Bd4 Nd8 Rb7 Qcc2 Bc5 Qed2 Qc4 Qe2 f1B Bc3 Qcf4 Qcd2 Rb1 Ba1 Rb2 Rg1 h2 Rg2 Nh6 Rg7 Ng4 Rg6+ Qe6 Rh6 Bf2 Qee4 Bd3 Qee2 Qg5 Nf7 Qgf4 d8B+ Ka7 Bc7 Qee3 Bd6 Kb6 Nd8 Rd7 Be5+ Bc6 Bf6 Rda7 Bh4 Rb7 Nf6 Bh1 Bg3 Bg1 Be1 Bf2 Nh5+
8/B2nPqr1/Bn2np2/2N1Qqn1/2N5/RRKbbBkr/2QR1rP1/5b1Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Ke6 c4 Ke5 e4 a5 b6 d5 b5 h5 g6 a4 c5 a3 b7 f6 b6 h4 c6 a2 g7 h3 c7 d3 Ne2 f3 Nd4 Kf4 e5 h2 e6 f2 e7 Rh3 Nb3 d4 Na3 Nh6 g8B Kg3 Bf7 Qd5 Nb1 Bf5 c8R Nd7 Bh5 Nf7 Rc6 Ng5 Rd6 Qf7 b8Q Bh6 Qb7 Rg8 Na5 Rg7 Bfe2 f1B Rg1 h1R Na3 Bh7 Rb1 a1N N3c4 Nc2 Qc6 Bf5 b7 Be4 Ba3 Bg6 Kc1 d2+ Kb2 d3 b8Q Nd4 Bc5 Nde6 Nb7 Be4 Qc2 d1Q Ba7 d2 Nc5 Bd3 Bhf3 Qe1 Qcc7 Qf2 Qh8 d1N+ Kb3 Ne3 Kc3 Kh2 Rb3 Nd5+ Kd2 N5b6 Kc3 Kg3 Qh7 Rh4 Rd4+ Rf4 Qe5 Rh3 Ra3 Bg6 Rd2 Bd3 Ne3 Be4 Ba6 Bed3 Qh8 Qe1 Nc4 Qe4 Rh1 Qf5 Rg1 Bfe2 Rb1 Bf1 Rbb3 Nd4 Qe4 Nde6 Bd1 Rf2 Bf3 Nh7 Qe1 Be3 Qe2 Nhg5 Qe1 Bfe2 Qh1 Bf1 Qb8+ Qf4 Qd6 Qe5+ Qd4 Qf5 Qe5+
5N1n/1R1np1r1/K4b2/Q1b3Qq/N2qPq2/1nRkPBB1/NR6/3bQq1r b - - 0 1 legal: proof: d4 g5 h4 gxh4 a4 b5 axb5 c6 d5 cxd5 e3 Qb6 e4 Qe3+ fxe3 d4 Ke2 f5 Kd3 a5 Kc4 d5+ Kc5 Kd7 Kb6 Kd6 g4 h5 b4 a4 c4 f4 g5 d3 g6 f3 g7 a3 Bh3 d4 Bb2 f2 Be6 f1N Qg4 d2 Rh2 d1Q Bd7 h3 Be6 h4 Rc2 h2 Nc3 h1Q Rac1 h3 Qe2 d3 Na2 d2 Bg4 h2 Bf3 Bg4 Qe1 Nh6 g8Q Nf7 Ne2 Bg7 Nec3 Bf6 Na4 Nd7+ Kb7 Rd8 Qg5 Rdg8 b6 Rg7 b5 Rh3 Bd4 Nh8 Rb2 Qc2 Bc3 d1Q Ka6 Qf2 b7 Nd2 b8R Qhf1 b6 h1Q b7 Nb3 Be5+ Kc6 Bd6 Qd4 Bg3 Rh6 Rc3 Qh5 Bh1 Bd1 Bf3 Qg4 Qa5 Rh1 Qg5 Qf4 Qa5 Qh3 Qg5 Qh5 c5 Kc7 c6 Kd6 c7 Qf1+ Rd3 Kc6 c8Q+ Kd6 Qd8 Kc6 Nc1 a2 Qda5 a1B Na2 Kd6 Rc2 Bb2 Rd2 Ba3 Rb2 Qfh3 Rc3 Bc5 Ra8 Kc6 b8N+ Kd6 Ra7 Qf1+ Qe2 Nb6 Nd7 Kc6 Nf8 Nd7 Nb6 Kd6 Rb7 Kc6 Ka7 Kd6 Qe1 Kc6 Qa3 Kb5 Rb8 Qdd6 Kb7 Qd2 Qa8 Qd4 Na4 Qf2 Rd3 Kc4 Qaa5 Qg2 Ka6 Qf1 Rb7 Rh4 Rdd2 Rh1 Rdc2+ Kd3 Rc3+
1qrRKn1k/1B1Npn2/r4Q2/qBQ1bP2/RNb3Q1/1bR5/2b3P1/q1B3n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kg7 Ke4 h5 Ke5 a5 b4 d5 c4 d3 f4 d4 c5 h3 b6 d2 b5 a4 c6 h4 c7 d3 b7 h2 b6 h3 Qh5 d1B Ra3 d2 Nc3 Nd7+ Ke6 Ra6 b8Q Bb3+ Nd5 d1B Qa7 Bdc2 Bb5 Nh6 Nf3 Nf7 f6+ Kg8 f5 Bg7 Rf1 h1Q Qg4 h2 Ne5 Kh7 Rf2 Qe1 Rf3 h1N Rc3 Ng3 Ra1 Bb7 c8B a3 Ra2 Bc6 b7 Ne2 b8R Ng1 Qc5 Rg8 Ra8 Kh8 Bb7 Qb8 Ra1 Rc8 Ra2 Nh6 f7 Bc4 Ra1 a2 f8Q+ Ng8 Ra3 Qa5 Qf6 Nf8+ Kf7 Bd7 Ra4 B2b3 Rb1 a1Q Rb2 Bc2 Rb3 Bc6 Rc3 B4b3 Bf1 Bb5 Nd7 Bbd3 Qe6 Be5 Nb4 Be4 Bb5 Bed5 Qc6 Bdc4 Qc5 Rcc6 Bc8 Nh6+ Ke8 Nf7 Qeg6 Qd6 Bb7 Qdc7 Rc8 Qb8 Rd8 Rc8 Qf6+
1rr1b1B1/bnkP4/Nq6/3qN1PR/1RBpQb1B/4QK1b/5Rn1/Q4n1r b - - 0 1 illegal: No proof kernel
BBbQnNQR/q2Pb2r/rp1r3P/1n1qb1Qk/q1NR4/4R2B/3K3b/8 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 d4 g5 a4 e5 f4 c5 f6 Kg6 a5 e4 f5+ Kh5 d6 b3 a6 e3 f7 b2 d7 e2 d5 c4 d6 g3 a7 c3 f6 g4 Nd2 b1R Qb3 g2 Qb4 c2 Qf4 g3 Nh3 g1Q Ra4 g2 Ng5 Nc6 Nc4 Nd4 Nh7 Be7 f8Q Rb6 f7 Nb5 Kd2 Nf6 Rh3 Ne8 Re3 Ra6 Qg8 e1B+ Kd3 b6 f8R Bg3 Kd2 Qh1 Rb4 g1B Bh3 Qc7 d8Q B1h2 Bb2 Qa1 Be5 Qa4 Qf6 Rb8 a8B Qa7 d7 c1Q+ Ke2 Qca1 Kd2 Qh1 Bc7 Rb7 Bb8 Rc7 Qfg7 Be5 Qg3 Kh6 h5 Rc6 Qg2 Rd6+ Q2d5 Ng7 Re8 Qe4 Nf8 Kg5 h6 Rh7 Rbb3 Qh1 Rbd3 Kh5 Rd4 Qf3 Qc5 Qd5 Qe6 B5f6 Ng6 Qg5 Rh8 Ne8 Nf8 Bg7 Qcd5 Qe5 Qg2 Qd5 Qg8 Bge5 Q2g5+
2K2n2/3PbNP1/r1R1np2/BQ2N2q/1r2nb1q/3b4/B2QBkr1/2rRQ1R1 b - - 0 1 illegal: No possible last move
3B3q/1k1P1nP1/qq1pB3/3Q3n/bQ3R2/2nRbr2/1Qr1RNK1/Nrn4B b - - 0 1 illegal: No proof kernel
k1b5/2Pr2qn/3r1n1q/bbBRPN2/1RR3rQ/1B1QpQ1r/2Bq4/K6N b - - 0 1 illegal: No proof kernel
1B1Rb1bB/Q1P5/NQ2nn1R/KQNP4/Br1b3q/rR1rqk2/2n1r1p1/8 b - - 0 1 illegal: No proof kernel
Q3B1bb/K1pN1r1n/1r1Bk3/b4r2/BQ2qR2/N2n4/qQPR1P1n/R3n3 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Ke7 Ke3 d5 Kd4 a5 Kc5 h5 b4 h3 g4 h2 b6 a4 e6 d4 g5 d3 g6 a3 g7 d2 b5 a2 b7 h4 b6 e3 Qe2 d1R Bd2 h3 Kb5 Nc6 b8R Nf6 g8Q Ra5+ Kc4 Nh7 b7 Nb4 Qe1 e2 Ra8 Nd3 b8Q Rf5 Nc3 Rb1 Bf4 Rb6 Ra4 Qd6 Rd1 a1B Nf3 Qa3 Nb1 Bh6 Qg2 Rhf8 Ne5 R8f7 Nd7 Bh8 Rd2 Bb7 Qc1 e1N Qb2 Bc6 Rg1 h1N Bh2 Qa1 Na3 Ng3 Qh1 Kd6 e7 Ke6 e8B Bb7 Be2 Nf1 Bd6 h2 Qc6 Bc8 Qca8 h1Q Bf3 Bf8 Bc6 Nh2 Rb4 Bfg7 Ba4 Bc3 Rf1 Ne5+ Kc5 Qa2 Rf4 Ba5 Qbb7 Qe4 Qb4 Ng2 Ra1 Ne1 Qbb8 Bb7 Qb2 Bd5 Qb4 Ra6 Kb5 N5d3 Qb2 Rc6 Qb6 Bb3+ Ka6 Bc4+ Ka7 Bd5 Q6b4 Rb6 Nf6 Rg7 Bed7+ Kf7 Ng4 Bb3 Ne5+ Kf6 Qb5 Bg8 Be8 Ke6 Q5b4 Rgf7 Nd7
3NR1b1/q1pk1bNq/qRQ1R1B1/8/nbQb2K1/4QB1r/1rP1P3/3n2Nr b - - 0 1 legal: proof: f4 b5 g4 g5 a4 e5 axb5 h6 d4 Bc5 dxe5 Bd6 Bd2 Bf8 Bb4 Nf6 Be7 gxf4 g5 Ng8 g6 Rh7 Bh4 Rh8 Bg5 hxg5 Kf2 a5 Kf3 f5 b4 d5 h4 d4 e6 g4+ Kf2 f3 Kg3 d3 h5 f4+ Kf2 d2 h6 a4 b6 a3 e7 a2 h7 Nd7 b5 Ngf6 b7 Rb8 g7 Nc5 g8N Na4 b6 Nd5 Nc3 Qd6 Qc1 d1Q Nh6 Qd3 Rb1 a1Q Nf5 Ne3 Nd5 Be6 Nb4 Bf7 Rh6 Kd7 Re6 Bg8 Ng7 g3+ Ke1 g2 Kf2 Qa6 Nc6 Qdd3 Nd8 Qg6 Qa3 Qf5 Qb3 Qa3 Qc4 Nd1+ Ke1 f2+ Kd2 Ra8 b8Q f3 Qa7 Rb8 b7 Qac5 Qa8 Qca7 Rbb6 Qh5 Kd3 Qh2 Ke4 Bf7 Nh3 g1B Bg2 f1B Kf5 f2 Bf3 Bg2 Kg5 f1R Kg4 Bd4 Ng1 Rg8 h8Q Qh7 Nh3 Rh1 Ng1 Qh2 Qh5 Rh8 Qe5 Qh7 Qe3 Bh3+ Kf4 Bf5 Kg3 B5g6 Kf4 Bg8 Kg4 Rc8 b8R B6f7 Qae4 Rh3 Ra8 Rb8 e8B+ Kc8 Bc6 Bb4 Qg6 Rh1 Bce4 Kd7 Qf6 Ba5 Bg6 Be1 Rbc6 Rb2 Rb6 Bb4 Nb7 Qh2 Rae8 Rh3 Nd8 Qd6 Qf5 Qe7 Qfe4 Qh4+ Kf5 Qh8 Kg4 Qh7 Qec6+
1N2B3/bPrq4/2q2k2/2nN4/Qr2R2K/q2n2R1/PBrRBNp1/2rn1bQ1 b - - 0 1 illegal: No proof kernel
r1r2B1n/pP3R2/4rNQ1/1qNR1qBK/4Q2R/1r2Nn2/4bn1P/4kbbB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 g5 b4 c5 b6 f5 b7 c4 b5 c3 b6 g3+ Kf3 g4+ Kg2 c2 Ra4 Nd7 b8N Ne5 b7 Rh3 Bd3 Nf6 Nd7 Qe8 Nf3 Ng6 Qg1 Nh8 Nc5 Qb5 Ba3 c1R Nfd2 Rc2 Nc3 f3+ Kf1 f4 Nd1 g2+ Kf2 Be6 Ne3 Bg8 Qe1 g1R Qb1 Rgg3 Rf1 Rh6 Rc4 Bf7 Rb4 Bh5 e5+ Kc7 d6+ Kc6 d7 Ne4+ Ke1 f2+ Ke2 Bg7 d8R Re6 d5+ Kb6 d6 Ka5 d7 f3+ Kd1 Rh3 Bc4 g3 Bd5 g2 Rd4 Rg6 e6 g1N e7 Re6 e8Q Bf6 Rc4 Bd4 Qg6 Rg3 Na6 Bb6 Bf8 Bg4 Rd4 Rcc8 Nc5 Bh5 Bc6 Bg4 Rd5 Bh5 Qc2 Kb4 Re8 Bg4 d8B Rh3 Qa4+ Kc3 Bg5 Bh5 Re7 Rg3 Re1 f1B Rf7 f2+ Re2 Nf3 Re1 Rh3 Re2 Ng3 Qae4 Nh1 Re1 Bc4 Re2 f1Q+ Re1 Qf2 Rg1 Bf1 Rg4 Qg3 Rh4 Qe5 Qa4 Qf5 Nde4+ Kb2 Nf6 Kc3 Nd3 Bc5 Qe4 Bd4 Nc5 Rg3 Nc2 Bg1 Ne3 Bc4 Nd3 Nf2+ Ke2 Rh3 Kf1 Kd2 Kg2 Bg4 Nc5+ Ke1 Rhh7 Rh4 Kg3 Bh3 Rh6 Bhf1 Rhh7 Rf4 Rh4 Bce2 Rg4 Nd4 Kh4 Rf3 Kh5 Rg3 Be7 Nf3 Rh4 Rg2 Bf8 Rg4 Qc2 Rb4 Qe4 Rb3 Rd8 Bh3 Qg4 Ne5 Bh1 Bhf1 Rd5 Nf3 Qe4
3N3Q/k1R2r2/2nPK1b1/bPpr1Q1B/b2N2rN/5bBR/1B1b2R1/b1n2q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 a5 h4 g5 d4 a4 h5 g3+ Kf3 a3 d6 a2 e5 g4+ Kg2 Ra7 h6 Qf6 d5 Nc6 h7 Nge7 b6 Ng6 b7 Bh6 b8R Rd8 h8B Bb7 Bb5 f3+ Kf1 g2+ Kf2 f4 Ne2 g1R Qf1 g3+ Ke1 f2+ Kd2 g2 Kc3 f3 Kc4 Bd2 Bb2 Qf8 Rh3 Nf4 Nd4 Ne2 Rc8 Nc1 Ba4 Qf6 Bd1 Ba8 Qd3 f1B b5 f2 Bh5 Be2 Kc5 f1B Qc2 Ba5 Nd2 Bd1 N2f3 Bd3 Nh4 Bg6 Rb1 a1B Qf5+ Qe6 Bg7 Ba4 Bh6 Bd2 Bf4 Bb7 Bg3 Ba5 Qd3 Qf5 Kc4 Qf1 e6+ Ke8 e7 Kd7 Rb8 Ba8 Rb7 Kc8 e8Q Bd2 Qh8 Ba5 Rb6 Bb7 d7+ Kb8 Ra6 Ba8 Kc5 Rb7 Rb6 Ka7 Qc2 Rh1 Qe4 g1B Qf5 Be3 d6 Bed2 Kd5 Rg8 d8N Rg1 Bf2 Rg5 Ke6 Rg4 Bg3 Rf8 Qe4 Rf5 Qc2 Rd5 Qf5 Na2 Re1 Nc1 Rd1 Ne7 Re1 c5 Re2 Nc6 Rg2 Rf7 Rb8 Bb7 Rc8 Nb4 Qg5 Rdf5 Bc3 Bf3 Bb2 Rd5 Qf5 Nc6 Rc7+
n1bk4/2q2nB1/r1RpB3/1NbR1K1P/1rrBn3/7Q/1Qnn1PnN/4N1Q1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 g5 Kd3 e5 Ke4 a5 h4 g3 b4 a4 c4 g2 f6 a3 h5 a2 c5 d3 b6 g4 b5 d2 b7 g3 c6 Ra6 c7 Bc5 b6 d6 Bb2 Nh6 Nc3 Nd7 b8Q Nf7 b7 Nb6 Nb5 Na8 Rc1 a1N Bc4 Nc2 Nf3 g1R Be6 g2 Kf5 e4 Bd4 e3 Nh2 e2 Qe1 d1N Qf1 Bd7 c8Q Nc3 Rd1 e1N Rd2 Ne5 f7+ Ke7 Rd1 Ne4 f8B+ Ke8 Rd3 Nf7 Bfg7 Ke7 Rd1 Qc7 Qg8 Bc8 Qd3 Rf1 Qh3 g1N Rd3 Ngf3 Rc3 Bb6 Rc6 Nfd2 Rg1 Nb1 Rg5 Ng2 Nc3 Nce3+ Kg6 Ne1 Rd5 Nbd2 Bge5 Bd7 Rcc5 N3c2 Kf5 Qd8 Qg1 Ng2 Bg7 Rfa1 Rc4 R1a4 Rc8 Rc4 Rc6 Ra5 Qa7 Ke8 b8N Qc7 Na6 Bc5 Nb4 Ke7 Nd3 Rb8 Ne1 Bc8 Qa6 Kd8 Qb7 Ra6 Qb2 Rbb4 Nb5
N1B3RB/4r1qP/QQr1prk1/nK1n1P2/2r1R3/3N1Nb1/bQr2B2/2n2r2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 f4 c5 h4 a5 d4 g5 b4 c4 h5 e6 d6 c3 b6 g3 b5 a4 h6 a3 h7 a2 d5 g2 b7 c2 b6 g4 d7 g3 d6 e3 Kd3 e2 Kc4 e1R Be3 c1N Nc3 Qf6 d8Q Ra4+ Kb5 Be7 d7 Rc4 Qa4 Kg6 Bf2 Qg7 Nce2 Nc6 b8Q Bh4 b7 Nf6 Qa6 Na5 Qdb6 Rf8 d8B Nd5 Nf3 g1R Bf6 Rg2 Rg1 Rh2 Qe5 g2 b8N Bb7 Qb2 Bg3 Nd7 Rc6 Rb1 a1R Bc3 Ra4 Ra1 Qf7 Bh8 Rac4 Ra4 Qg7 Rb4 Rf6 Ra4 Na2 Nc1 Rd1 Nd3 Nc1 Be2 Rf1 Rb4 Rc3 Re4 R3c4 Q6d4 Ba8 Nb6 Bb7 Rh1 g1R Na8 Rf7 Qda7 Re7 Q7b6 Rgg2 Rg1 Rh5 Rh1 Rf5 Rh3 Rf6 Rh5 Ne3 Rd5 Rh2 Rd8 Nd5 Rg8 Rg2 Bd1 Rh2 Ba4 Rg2 Bc5 Re2 Bf2 Rec2 Rb8 Rd6 Q2d4 Nb4 Qb2 R4c3 Rf8 Bd5 Rg8 Bc4+ Kc5 Nd5 Bd7 Ba2+ Kb5 Rdc6 Bc8 R3c4 f5+
bqb3r1/1k2bpr1/b1Q1Qn2/P2NB1R1/1bRPN2Q/1Kn3B1/2r2R2/1B5b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Kd7 e4 c5 d4 Kc7 Kd2 g5 Kc2 b5 a4 g4 d6+ Kb7 h6 b3+ Kb2 b4 h5 c4 h7 f3 e5 g3 e6 g2 e7 f2 e8Q Nd7 a5 Ndf6 d7 Ne4 h6 Be7 Nc3 Ngf6 Qg4 Rg8 Bd3 f1B Nh3 g1R Nd5 Nc3 Qe6 R1g7 h8Q Bg2 Rd1 Bh1 h7 Qc7 d8B Qb8 Rf1 Ra6 Rf2 Rc6 Bf4 Rc7 Kc1 b2+ Kc2 b1B+ Kb2 b3 Be5 Rc5 Bdc7 Rc6 Be4 Bd3 Ng5 Rc5 Ka3 b2 Rg1 b1B Bg3 Bf1 Bce5 Bbd3 Bf5 Bde4 Q8c6+ Ka7 Re2 Bd7 Qc8 Rb5+ Nb4 Ncd5 Be1 c3 Reg2 Bf3 Bb1 Rc5 Kb3 c2 Rh2 c1B Rg4 B3e2 B1g3 Ba6 Qc7+ Bb7 Qcc6 Bd2 Ne4 Ba8 Rg5 Ba6 Re2 Bdc8 Rg2 Nb6 Nd5 Bb4 Ra2 Rc1 Rc2 Na4 Rc4 Rc2 Rf5 Rg6 Rf2 Nh5 Qhf6 R6g7 h8R Nc3 Qh4 Nf6 Rh6 Bec5 Rh5 Be7 Qcd6 Kb7 Rg5 Nd7 Qc5 Nf6 Qcc6+
1KN1n1bR/1QQ2p2/1b3PB1/1r1q2B1/1kRN4/5Pn1/2Bb2br/1rb1N1Qb b - - 0 1 legal: proof: d4 b5 h4 c5 a4 cxd4 axb5 g5 f3 Qc7 e3 Qf4 exf4 gxh4 Ke2 e5 Kd3 Ke7 Ke4 Kd6 g4 Kc5 c4 h5 g5 d5+ Kd3 a5 g6 a4 f5 h3 g7 h4 b6 e4+ Kd2 h2 b7 a3 f6 e3+ Kd3 h3 b3 e2 Bg5 e1B Be3 a2 Bg5 Na6 b8Q Nh6 g8B Nc7 Qc1 Nf5 Na3 Bh6 Nc2 Bd2 Bh7 Ra5 Ne1 Rb5 Qb7 Ne8 Bg6 Ng3 Ne2 Kb4 c5 Bg4 Rb1 a1B c6 Bb2 Qd1 Bbc1 c7 Bf8 c8N Bc5 Rb2 Bb6 Rc2 Be6 Rg1 h1B Rc4+ Ka3 b4 h2 Bh3 Bg2 Bhf5 h1B Be4 Bf5 Qc7 Rc5 b5 Rh2 Rf1 Bba5 b6 Rb5 b7 Bb6 Rc3+ Kb4 b8Q Rc5 Qbb7 Rb5 Bh5 Bh7 Bhg6 Bg8 Rc6 Ka5 Rc4 Bb4 Kc2 d3+ Kb3 d2 Bc2 d4 Rf2 d3 Nd4 Bca3 Qb1 d1R Re2 d2 Re4 Rc1 Rh4 d1Q Rh8 Bd6+ Kc3 Bf4 Qa1 Bd2+ Kd3 Bc3+ Ke3 Rcb1 Kf4 R5b4 Ke5 Bd2 Kd5 R4b2 Kc6 Rb5 Bce4 Qb3 Bc2 Qd3 Qbb8 Qf5 Kb7 Qd7 Ka8 Qf5 Qbb7 Qd5 Rc3 Kb4 Kb8 Rb3 Qc1 Rb1 Rc6 Bc3 Qe3 Bc1 Qg1 B3d2 Rc4+
nn3bqN/1b1NPpBn/6r1/N2BRQR1/5Br1/R4r1r/1KPQr3/4k2r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Ke6 h4 Kf5 e3 Ke4 h6 g5 h5 a5 b6 d5 b5 f3 h7 g4 b7 g3 b6 f2 h6 a4 Bb5 f1R Bb2 a3 Kc1 d3 Bg7 g2 Be8 d4 Nf3 g1R Rh5 a2 Rg5 d2+ Kb2 d3 Ne5 Nf6 Na3 Ra6 Nac4 Rf3 Nd7 Rg4 Qf1 d1R Na5 d2 Qg2 Nc6 b8Q Bb7 Qc8 Rh1 Re1 d1R Qd2 Nb8 Qc5 a1N Qb5 Bc6 b7 Nb3 Re2 Rde1 Qc5 Rg8 h8R Nd4 h7 Ne6 Qb5 Rfh3 Qbd3+ Kf3 Qf5+ Rf4 e4 Nc7 e5 Na8 e6 Bd5 Re5 Re2 e7 Kf2 Rg3 Rf3 Rg5 Nc6 b8B Kf1 Ba7 Nb8 Be3 Bb7 Bf4 Re6 Nb6 Qc8 Bc6 Qe8 Nd7 Qd8 Qd4 Ke1 Bd5 Qc8 Bh6 Rg6 Bg7 Rc6 Rg8 Rc4 h8N Nh7 Rg3 Rf2 Ra3 Rff3 Qdd3 Qe8 Bg5 Rg4 Bf4 Rf6 Bgh6 Ra6 Rg5 Rg6 Qd4 Bg7 Qdd3 Qg8 Qe3 Bf8 Bg7 Rhh6 Qed3 R6h3 Qd2+
1b1r4/2N2N1K/r2Nb1n1/PQ2B2R/qr3bp1/rQ1bRPk1/BR1nB3/3r4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 c4 d5+ Kd3 Ke5 h4 b5 a4 g4 f6 b3 f7 b2 a5 b4 f3 b3 h6 Nc6 h7 Qd7 h5 Bh6 f8R Nf6 c5 Ne4 Nh3 Bf4 h6 Ra6 Re8 Nd2 Nc3 b1R Ne4 b2 Qb3 e6 Qb5 Ne7 c6 Ng6 c7 Qc6 Qb3 Qa4 Be2 Rg8 Re7 Rd8 h8Q+ Kf5 h7 e5 Rh2 Be6 Ra2 Ra1 c8B b1R Qb5 Rb4 Rb2 Ra2 Qg8 Ra1 Nc3 Ra3 Nf2 Kg5 h8N Kf5 Rg2 Kg5 Bd7 Kh4 Rh2+ Kg3 Rh5 Ra1 Bd1 Ra3 Nf7 e4+ Ke2 e3 Kd3 e2 Ne4+ Kg2 Ned6 e1B Be2 Kg3 Be8 Bc8 Re3 Be6 Qb6 Bf2 Bb5 Bg1 Bc4 Bh2 Bb3 Rc4 Ncb5 Rb4 Kc2 d3+ Kc3 Nf1 Nc7 d2 Kd3 d1B Qb5 d4 Ke4 d3+ Bc4 Bb3 Bd2 Ba2 Bc3 d2 Bh8 d1R Be5 Bd5+ Kf5 Nd2 Kf6 Bb1 Kg7 Be6 Ba2 Bd3 Kh7 Bg1 Re4 Ba7 Re3 Bb8 Ng5 Bc8 Qb3 Be6 Ngf7
1Q6/1n2bn2/b1Bnn1KR/pQrN2B1/2rR1B1q/n1P3Qk/2NPn2N/q7 b - - 0 1 illegal: No proof kernel
3Q1rbn/1Kb2Qq1/Np3b1N/2N4b/R7/1PnrPBk1/1B1Rb2b/Rq1Q4 b - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 Qc2 a3 Qb2 axb2 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 g5 a4 f3 h4 f2 h6 g4 a5 g3 h5 b6 a6 g2 a7 f4 h7 f3 h6 Bg4 Nh3 g1B Nf4 Bh2 Bg2 f1B Ne6 f2 Bf3 Qe7 Nc5 Na6 Na3 b1Q Nc2 Rd8 a8R Nb4 R8a4 Na2 Bb2 Bh5 Nb4 Nc3 Nba6 Bg7+ Kc4 Ke5 d4+ Kf4 d6 c6 d7 Kg3 d5 Bf6 d6 Qg7 R1a2 Rf8 d8Q Ne7 d7 Ng6 Qe7 Rhg8 d8Q Nh8 Qd1 Rd8 Kb4 Rgf8 Qf7 Rd3 e3 Be2 Ra1 f1B Kc4 Bh3 Rf1 Be5 Rf2 Bc7 Kb4 Bc8 Kc4 Be6+ Kb4 Ng6 h8N Bc4 h7 Be6 Qe7 Bg8 Nf7 Nh8 Nh6 Qf6 Ne6 Qg7 Qf7 c5+ Kc4 Ne4 Kb5 c4 Kc6 c3 Nec5 c2 Kb7 c1B Bd4 Bd2 Bb2 Bc3 Rg2+ Kh3 Rf2 Bf6 Rg2 Nc3 Rf2 Bf1 Re2 Kg3 Rd2 Ng6 h8Q Be2 Qh7 Nh8 Qhg6+ Bg5 Qgf6 Bh4 Q6e7 Bf6 Qd8
R1QqQ2N/1n4r1/Qp1R1PBP/6r1/1rB2Bkn/2K2nbn/1NR5/n3r2b b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 d4 Kf6 Kd2 g5 a4 c5 f4 e5 h5 g3 a5 b6 a6 b3 d6 g4 d5 e4 a7 b2 d7 e3+ Kc2 e2 h6 e1R d6 g2 Kc3 c4 Ra4 g3 Ra3 Na6 Qd3 Nc5 Rh2 Bb7 Ne2 g1N Nd2 b1R Ra1 Rb8 a8B Bh1 Be4 Nf3 Ra8 Ne7 Rf2 Rh7 Rh2 Qe8 d8R g2 d7 g1N Rg2 Nh3 Rf2 Kf7 f6 Ke6 f7 Rb4 Bg6 Nb7 f5+ Ke5 f6 Nf5 Nf4 N5h4 Rg2 Bd6 f8Q Rg7 Be2 Qe7 Qe8 Bc7 Bh5 Bd6 Ng6+ Ke6 Bf1 Bg3 Nh8 Ke5 Bg6 Kf4 Rc8 Kg5 d8Q Kg4 Rc6 Rc8 Re6 Rc5 Qc8 Qd8 Rd6+ Rf5 Kc2 c3 Nc4 Re3 Nb2 Re1 Qb8 Rd5 Qa6 Rg5 Kd3 c2 Bf4 c1N+ Kc3 Nb3 Rc2 Na1 Bc4 Nhg1 Qc7 Nh3 Qc8+
1bQ1kqN1/2rnP2Q/B3bn1P/2BN2b1/3b1r2/n4R2/4RpBK/1b1RnQ2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 Kg2 g5 h4 f5 b4 d5 e4 a4 c4 f3+ Kg3 f4+ Kh2 a3 b6 f2 b5 d3 b7 a2 c5 d4 b6 f3 e5 d2 e6 g4 c6 d3 e7 Bh6 c7 Ra7 Nc3 Be6 c8B Nd7 b8R Rc7 b7 Ngf6 Bg2 f1B Nd5 f2 Nf3 Rf8 Nd4 Bg5 h6 Be2 Qg1 d1N h5 d2 h7 Nc3 h8Q d1N Qf1 Nb2 Be3 Nb5 Rd1 a1B Nf5 Nd3 Bc5 Ne1 Qh7 Bd4 Nh6 Na3 Ng8 Bd3 h6 Bb1 Ra8 Rf7 b8Q Rf8 Ba6 Rf7 Rg1 g3+ Kh1 Qc8 Qb7 Qb8 Rd2 Qd8 Re2 Qb8 Bh3 g2+ Kh2 Qd8 Rh1 g1B+ Kg3 Ng4 Bg2 Bh2+ Kh3 Bd6 Rc8 Rf4 Kg3 Ngf6 Kh2 Rc6 Rg1 Bb8 Rc7 Rb6 Rc6 Rb3 Rb6 Rb2 Rb3 Rc2 Rf3 Rc3 Ba7 Rc8 Bc5 Rc7 Rc2 Nd3 Qe2 Qc8 Rd1 Ne1 Qf1 Qd8 Qe4 Kf7 Re2 Qf8 Qh7+ Ke8 Qc8+
3RbK1N/nkrNp3/5Q2/1bnqP1n1/1r1b1B2/RPNb1QQ1/1b4R1/2n1B3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Kd7 e4 a5 h4 f5 d4 c5 b6 f3 Ke3 a4 Kf4 c4 Ke5 c3 d6 Kc6 d5+ Kb7 g6 c2 h5 f2 g7 f1B b3 g3 d7 f4 Ke6 f3 Kf7 a3 h6 g2 h7 a2 d6 f2 Qd4 Bb5 Nc3 f1B Bd2 c1N Qf6 Ra4 Rh2 Bfd3 Nf3 g1N Be1 Nc6 Rg2 Nh3 Ne5 Rb4 Qf3 Nf6 g8Q Bh6 Qgg3 Be3 Kg7 Re8 h8N Na7 Kf7 Ng5+ Kg7 Qc7 d8Q Qc6 d7 Rf8 Qe8 Bd4 d8R Nd7 Qg6 Nc5 Qgf6 Qd5 Nd7 Re8 Rb1 a1B Rbb2 Be3 Ra2 Bb2 Ra3 Bd4 Qfe5 Kc6 b7 Rf8 b8B Kb7 Bd6 Rf6 Bb8 Rc6 Kf8 Rc7 Qef6 Bc6 Ne5 Be8 Nd7 Bb5 Nb6 Bf5 Nd7 Rc6 Bd6 Rc7 Bf4 Bh7 e5 Bf5 Qh3 Bfd3 Qhg3
b3b1Nr/Pq1R4/Q1rBnRB1/N1b3Q1/b1pQ2b1/rNK5/kn4P1/1R1r4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 e4 Ke7 d4 Kd6 Kd2 h5 a4 c5 g6 b5 a5 f5 a6 f3 g7 b3 Bb2 f4 Qe2 b4 Ra2 h4 Kd3 h3 Nc3 f2 Nd1 f3 Nc3 h2 Qd2 Nh6 g8Q Ng4 Nge2 Qd7 Nc1 Qb7 Nd1 Nc6 Qg7 Nd8 Qgh6+ Ne6 Ba3 b2 Qdg5 b1R Nb3 Rc1 Nb2 Ne3 Qhf6 Nd1 e5+ Kc7 d6+ Kb6 d5 Kb5 Rg1 h1R Nc4 Ka4 d7 Nb2+ Kd2 Rc3 Bd3 f1B d8R f2 d6 Bd7 Ra1 Be2 Rab1 f1B Bg6 Bg4 Nca5 Be8 d7 Bb5 Rgf1 c4 a7 Bc5 Rf2 Rc8 Rff1 Rc6 Rf5 Ng7 e6 Re1 e7 Ne6 Qd4 Rg3 Rf6 Rd1+ Kc2 Rgd3 Rc8 Rdh3 d8Q Rhd3 Rc7 Re3 Q8d6 Rf3 Nd2 Re3 Qd3 b3+ Kc3 Rb6 Qgf4 Qf3 Bf5 Bf7 Qc6 Bd6 Qb7 Bc6 Qa6 Ba8 Qg5 Qb7 Ra1 Rc6 Rd7 Rf3 Qde3 Nd3 Qe4 b2 Bg6 b1B Qd4 Bc2 Rb1 Bb3 e8N Bc2 Nc7 Be8 Nd5 Bf8 Ne7 Nb2+ Qde3 Rg3 Ng8 Rgh3 Bd6 Rf3 Bg3 Bc5 Bd6 Ka3 Qd3 Ba4 Qde3 Bb5 Kc2+ Ka2 Qd4 Ra3 Ndb3 Ba4 Kc3
RN3b1b/P1Q1R1B1/P1rp4/1B4R1/r2rQ1n1/q3N1nk/bb2N3/1Qrb2K1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 g4 cxd4 b4 h5 bxa5 hxg4 f4 Kf7 Kf2 Kf6 h4 e5 a4 Be7 c4 b5 c5 g5 h5 g3+ Kg2 d3 c6 d2 c7 d6 h6 g4 a6 e4 h7 b4 a5 b3 Na3 e3 Ra2 b2 Qe1 d1R Nc2 b1B Rh5 e2 Rg5 Nd7 Bb2+ Ne5 a7 Nh6 Qb4 e1B a6 Bc3 Ra1 Ba2 Kh1 g2+ Kh2 g3+ Kh3 Rb8 Bb5 Rb6 Qa4 Bce6 c8Q Beb3 Rc1 Re8 h8R Qc7 Rhg8 Qc5 Qc7 Qa3 Qd4 Rd2 Re1 Ba4 Re3 Rd3 Ne2 g1R Qdc4 g2 Kh2 Rc1 Re4 Bd4 Ne3 Bd1 Q4c6 Rf8 Kg1 Rf7 Ra8 Rg7 Rh5 Rg4 Rg5 Rh4 Qc2 Bc3 Qb1 Bd4 Bc3 Rd2 Ba5 Bb2 Bc3 Rd5 Bc6 Ra5 Bb5 Ra4 Bd4 Kf7 f6 Ke6 f7 Nf5 Bc3 Ng3 f8N+ Kf6 Bd4 Rbc6 Nd7+ Ke6 Nb8 Kf6 f5 Rg4 Kh2 Rf4 Nc2 g1B+ Kg2 Bf2 Re3 Be1 Kg1 Bec3 Re4 Bf8 Ne3 Bh6 Rg7 Rh4 Re7 Kg5 f6 Rg4 f7 Kh4 f8Q Kh3 Qf3 Bf8 Rg7 Rf4 Rg5 Ng4 Re7 Re4 Bh8 Bf6 Qf5 Red4 Qfe4 Be5 Bg7 Bf6 Bh6 Bh8 Bg7
3n1Q2/r1bR1BNn/bb5N/1rQ1bP2/kB4K1/4q3/np1B2P1/r2nR1QR b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 a4 b5 d4 c5 d6 Kc6 a5 h5 f6 b3 d7 h3 a6 h4 a7 e4+ Kf4 e3 f7 h2 f3 h3 Kg3 b4 f4 e2 d5+ Kb5 f5 c4 d6 e1B+ Kf3 b2 Ra2 b3 Bd2 Ba6 Ra3 Qg5 d8R Qe3+ Kg4 Bf2 d7 Bg7 f8B Nc6 Qe1 Be5 Ne2 c3 Bc5 c2 Ba5 c1B Nd2 b1N Ne4 b2 Bd2 Nc3 Ra1 Na2 N2g3+ Ka4 Nd6 Rb8 a8Q Rb5 Bc4 Rh7 Qc8 Bg1 Nh5 Nf6+ Kh4 Re7 Ba3 Nh7 Kg4 Bf2 Ng7 Rf7 Rf8 Nd8 Qc5 Re7 Nf7 Bc7 Rf1 h1R Nh6 h2 Bf7 Rg1 Re8 h1N Bab4 Bfg3 Qf2 Bge5 Re1 Rf1 Qg1 Nf2+ Kh4 Nd1 Kg4 Ne6 d8Q Bb6 Qh1 Ra7 Re7 Bec7 Qf8 Nd8 Qg1 Be5 Bdc3 Bec7 Rd7 Bd2 Bf6 Bc3 Bg5 B3e5 Bf4 Qa3 Bc1 Qe3 Bcd2 Ra8 Qf2 Ra7 Re2 Nc3 Rd1 Qd3 Re3 Re1 Rh3 Qe3 Rh1 Rg1 Rc1 Rd1 Qg1 Rf1 Rc2 Rb1 Rc1 Ra1 Rf1 Nd1 Re1
b4kB1/3q4/5rn1/r1Q1Qpn1/3RRrnN/2RN1Q1b/PrPK1b2/1NB3n1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 e4 d5 h4 b5 h6 g5 h7 d3 e6 d2+ Ke2 b3 h5 d4 e7 b2 h6 g4 e5 d3+ Ke3 g3 Qh5 d1B Qf3 b4 Nh3 d2 Na3 b1N Qc6+ Nd7 Ng1 g2 Qb5 b3 Nf3 g1N Rh3 b2 Kd3 Nc3 Qc5 b1R Ne1 Rb2 Nb1 Ra5 Bg2 f5 Bd5 Ngf6 Bg8 Bb7 Ke3 Bh5 Nd3 d1R Rg3 Rf1 Kd2 Bg7 Rh3 Nf8 Rf3 Kd7 e8R Bg4 Re6 Qe7 Rd6+ Ke8 e6 Bc6 Rd4 Qd7 e7 Ba8 Re3 Bh3 Ree4 Nd1 Rc4 Rf3 Rc3 Nf2 Rd4 Ng6 Re4 Qc6 Rd4 N2g4 Re4 Kd7 e8Q+ Kc7 Rd4 Bg2 Na3 Nf8 Qe3 Kc8 Rb4 Kd8 Rb1 Qd7 Rcc4 Rb3 Qf2 Ke8 Rb2 Bf1 Rc3 Bg2 Nb1 Ne4+ Kd1 Ng5 Re4+ Be5 Kd2 Rbb5 Rbb3 Bf1 Ra3 Rb2 Raa4 Bg2 Rad4 Bf1 Be6 Bg3 Qe3 Rg8 h8Q Bh3 h7 Rg6 Qhe5 Rf6 h8N Bf2 Ng6 Rf4 Nh4 Ng6 Qg3 Bb7 Qf3 Ba8 Qcc7 Ke7 Bg8+ Kf8 Qcc5+
1N2N2q/2Bb2r1/1rNQ4/QrP2pR1/Bb6/2n1r1Pb/1K3knB/1Q2nn1R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Kd6 Kc2 Kc5 e4 f5 g6 a5 b6 d5 g7 h5 b3 a4 e5 h4 e6 f3 b7 a3 e7 d3+ Kc3 d2 e8N h3 g3 f2 Ra2 h2 Kc2 Kd4 b4 Ke3 b5 d4 b6 d3+ Kb3 Bb4 c5 Ra5 Nh3 Bd7 Ng5 Ne7 g8Q Rh7 Nf7 Na6 b8B Rg7 b7 Nd5 Be5 Rb5 b8Q Nf4 Nc3 Ng2 Ne4 Nc7 Ra1 a2 N4f6 Nd5 Bc7 Nc3 Ne5 Ne1 Be2 f1N Kb2 Kf2 Nc6 Rb6 Qc2 d1R Qb1 d2 Bb5 Ng2 Qe6 Re1 Qa7 d1B Qa5 Bg4 Ba4 Bh3 Qd6 Ree7 Bf4 Re3 Be5 Qb8 Bd4 Rb5 Ng8 Qd8 Nb8 Qh4 Ne7 Qh8 Nec6 Rb6 Qd3 Rb5 Rd1 a1N Qb1 Nc2 Rc1 Nce1 Rc2+ Ne2 Rc4 Rb6 Be5 Rb5 Rg4 Nc3 Bd4 Rb6 Rg1 h1R Rg5 Rh2 Rh1 Bg4 Qc1 Rh6 Qa1 Bh3 Qb1 Rb5 Qe7 Ke2 Nd8 Ree6 Bg1 Re3 Bh2 Rhb6 Ndc6 Kf2 Qd6
Rr1nQb1K/2Qn4/3rPN2/br2R1PN/1p1R2Bn/q4nB1/2Q1b2B/2bk4 b - - 0 1 illegal: No possible last move
K1n1BN1R/4Qnb1/n1P1bB1n/5Npr/5R1q/2Q1Pr2/4Qrkr/b3R1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 Kh4 b4 a5 c4 f5 c5 g5 b6 a4 b5 a3 h6 a2 b7 d3 e3 f3 h7 f4 b6 f2 Bb2 d2 Bf6 f3 Bb5 f1R Na3 f2 Nc2 Nh6 Nd4 Nf7 Ngf3+ Kh3 Nh4 Bg7 Ng6 Kg2 h4 Na6 Qe2 d1N b8Q Nb2 b7 Nc4 h5 Ncd6 Re1 a1B h6 Qb6 Ba4 Qb4 Nf5 Qh4 Qc7 Ra7 b8B Rb7 Be7 Rb2 Bf6 Rc2 Rh3 Rh1 Bb5 Rh2 Nf8 Rb2 Rf3 Rd2+ Qd3 f1R Rf4 Rf3 Qd8 Rdf2 Qe7 Bb7+ Bc6 Nc8 Qe2 Ba8 Bb7 d6 Kc6 d5 Bc7 d4 Bb8 Rg8 h8R d3 h7 d2 Bd6 Nb4+ Kc7 d1N Bc6 Bb7 Bb5 Bd5 Kb8 Be6 Ka8 Na6 Bde5 Nh6 Bc6 Nb2 Be8 Nc4 c6 N4d6 Rd4 Rhh3 Bh2 Ndf7 Bg1 Rh2 Be5 Bf6 Rf4 Rg6 Bd4 Bg7 Bf6 Ng4 Rg8 Rh6 h8Q Rh5 Bb2 Bh6 Qc3 Bg7 Rh8 Ngh6 Qcc2 Kh1 Bf6 Kg2 Qc3
b2Q2b1/3bP3/BNBBNn2/2R1pn2/Q7/3q1nrk/2RNPr2/K3Qnbr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e5 Nf3 Qb6 Ng1 Qe6 fxe6 Kd8 Nf3 Ke7 Ng1 Ke8 Kd2 Ke7 g4 Kf6 b4 Kg5 c4 a5 b6 f5 Kc2+ f4 Kb2 d5 c5 h5 c6 h3 b7 Kh4 g5 a4 b5 d3 b6 f3 c7 a3+ Ka2 f2 g6 d4 g7 d2 Qb3 d1N Bb2 d3 Nd2 h2 Nc4 d2 Qc2 Ne3 Bc3 d1Q Qd2 Bc5 e7 Nc6 b8N Nf6 g8Q Nd4 b7 Nf3 Nd7 Nf5 Bg2 f1N Ndb6 Bd7 Qd8 Rg8 b8Q Rg3 Qe1 Qd3 Nh3 Bg1 c8B Ra4 Nd2 Rf4 Bb4 Kg4 Qd6 h4 Ng5 h3 Rb1 Kh4 Ka1 a2 Rc1 Kg4 Kb2 a1R Rc5 N3d4 Qc6 N1e3 Qe6 Bf2 Qd1 Rc1 Rf1 h1B Rc4 h2 Bc6 Bd5 Bd6 Kh4 Ba6 h1B Rc5 Bb3 Ba4 Ba8 Qc4 Kg4 Qcc2 Bg8 Ne6 Kh3 Bc6 Rff3 Qb1 Rf4 Qa4 Rd1 Rg1 Rf1 Rg2 Rh1 Rg1 Rff3 Rf1 Bg1 Rfc1 Nf1 Ka1 Rf2 R1c2 Nf3 Qe1
4q2r/r1P1n1nn/3bQBBr/1R3r2/1nNK1P1Q/2Nb2R1/B3p1Q1/2kR3b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 g4 Ke5 c4 a5 b4 d5 g5 h5 c5 h3 f3 a4 g6 h4 b6 a3 g7 a2 c6 h2 f6 h3 f7 Nd7 c7 Ba6+ b5 Ndf6 b7 Nh7 b8R Ra7 Qa4 Qe8 Ba3 Kf4 Qc2 e5 Bc5 Ne7 g8B e4+ Ke2 e3 Kd3 Nc8 Ba3 Bd6 Nc3 Ne7 Rd1 a1N Qg2 Nc2 Bb2 e2 f8Q+ Nf6 Qf7 Nb4+ Kd2 d3 b6 d4 b7 Bc4 Qe6 Nh7 Bf7 Bb5 Bg6 Ba6 Rb1 Bc4 Rd8 Ba6 b8Q Bc4 Ke1 d2+ Kf2 d1R Qb5 d3 Qa4 d2 Ba1 Nbc6 Rb5 Rb1 Rd7 d1R Bb2 Rd5 Rd8 Rf5 Ba1 Ba3 Rd2 Rb4 Bb2 Bd3 Ba1 Re4 Qd4 Bd6 Qdf6 Ne5 Qh4+ Ng4+ Ke1 Ree5 Qgg3+ Ke3 Ra2 Ngf6 Na4 Nh5 f4+ Ke4 Kf2 Ng7 Nf3 Bc2 Bc3 Kd3 Bg2 Bb1 Bb2 Kc2 Rg1 Rd5 Ke3 h1N Nd2 h2 Qgg4 Nf2 Bh1 Rc5 Bd5 h1B Qf3 Nd3 Rg3 Rh5 Bf6+ Kc1 Nc3 Qa8 Qg2 Rh6 Kd4 Nb4 Rb2 Bd3 Ba2 Rch5 Nc4 Qe8 Rd2 Rf5 Rd1+
3k4/3B4/3bRr1q/2BNrnr1/1qP1N2P/2b1pR1b/b1QBKR2/2NQ1nr1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 f4 d5 b4 a5 c4 g5 f6 g3 f5 a4 b6 a3 b7 e4 b5 g2 b6 e3 Qg4 d3 Qd1 d2+ Ke2 g4 Qe1 d1B+ Kd3 g3 Bb2 d4 Nd2 a2 Nb3 Ra5 Rh2 Nc6 b8N Re5 b7 Nh6 Na6 Ne7 b8Q Qd6 f7+ Kd8 f6 Ng4 Nd2 Nf5 Ne2 g1R Qb3 g2 Nc1 Rh6 Ne4 Qb4 Nc7 Bd6 f8B Bd7 f7 Rf6 Rb1 a1B Nd5 Be6 Rh3 Nh2 Rf3 Bd7 Be2 Nf1 Bc3 Be6 Qa2 Bb3 Bd2 Bc3 Qc2 Ba2 Qed1 Bc8 Rf2 Bd7 Bg4 Be6 Ke2 d3+ Kf3 Bd7 Be1 d2 Ke2 Rh1 Rb3 g1R Ra3 Rg2 Ra6 Rhg1 Bh3 Rg5 Rb6 Bb8 Bc5 Bc7 Re6 Bd6 f8R+ Be8 Rf7 Bd7 Kd3 Bc8 Qh5 d1Q+ Bd2 Qf3 Qg4 Qf4 Qgd1 R5g2 Ke2 Qh6 Rg7 Bd7 Rg3 Bc8 Rf3 Rg5 Bg4 Ng7 Re7 Be6 Bh5 Bf5 Be8 Bh3 Re6 Nf5 Bd7
RKnNQ3/1b6/4Q1B1/1P2P3/1RqbN1qq/3nnpN1/1rr3k1/qQR1n1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 f5+ Kd3 c5 Kc4 h3 b4 f3 e4 h2 g5 a4 g6 f4 g7 a3 b6 a2 Kb5 c4 b7 h4 Bg2 c3 Nh3 f2 Qf3 f1N Bd2 c2 Be3 c1Q Qf2 f3 Nd2 Na6 b8R Bb7 Qe1 Qd7+ Kb6 Ne7 g8Q Qc4 Qb1 Nc5 Bg1 Qg4 Ng5 Nd3 Bh3 Ne3 Nf1 Bg7 Ng3 Ne1 b5 Ra4 Ra8 Rb4 Ka7 Rb2 Kb8 Nc8 Ra4 Be5 Rb4 Rc2 Bf1 h3 Bd3 Rb2 Qf7 Rh7 Qf5 Rc7 Bc2 Qb3 Bd3 Rcc2 Qf7 Qc4 Qg6+ Ke7+ d6+ Kd7 d5 Bf6 Bf2 Bd4 Rg1 h1Q e5 h2 N5e4 Qg2 Rh1 Q2h3 Bg1 Qhh4 Qf5+ Ke8 d7+ Ke7 Nf6 Kf7 d8N+ Kg7 d6 Kh6 Qd7 Kg5 Qe6 Kf4 d7 Nf1 Bf2 Ne3 Rg1 h1N Bg6 Nd6 Rf1 Nc8 Bg1 Nf2 Nfe4 Nfd3 Nc6 Qf5 d8Q Kg4 Qf8 Kh3 Qfe8 Kg2 Nd8 Qfg4 Qd1 Rd2 Rc1 a1Q Qc2 Rf2 Qb1 N1c2 Rfd1 Nce1 Rd2 Re2 Rdc2 Rf2 Rc3 Rfd2 Ra3 Rdc2 Ra8
1QbQ3K/5Q2/5R1p/rPP2B1R/1N3nnq/NqR5/1qrbnn1k/2BB2q1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 a5 b4 d5 g4 d3 c4 d2 c5 Kf4 b6 e5 b5 h3 b7 a4 f6 h2 g5 a3 g6 d4 f3 Kg3 g7 a2 f7 d3 f4 e4 f5 e3 f6 e2 Nf3 e1N Qa4 d1Q Qb4 d2 Na3 Ng2 Qb3 Ra5 Be2 Qg1 Bd1 Nc6 b8Q+ Nf4+ Kg5 Qd3 Ne5 Nh6 g8B Nd4 Nc6 Ne2 Nb4 Ng4 Rb1 Bg7 f8R a1Q Be6 Qb2 f7 Bc3 Bf5 Qdc2 Qd5 Qcb3 Qd8 Kg2 Rg8 Kh3 f8Q Kg2 Rg6 h6+ Kh4 Rg8 Rf6 Rg7 Qf7 Rg6 Bdc2 d1N Ra1 Ndf2 Bd1 Bd2 Ra2 Nd5 Kh5 Rg8 Ra1 Re8 Kg6 Ndf4+ Kh7 Re4 Be6 Rc4 Bf5 Rc2 Kh8 Qe1 Rf1 h1Q Rb1 Qh4 Rh1 Qg1 Rh3 Qg5 Rh5 Qh4 Ra1 Kh2 Rb1 Q2a2 Rb2 Qe3 Rb3 Qb2 Rc3 Qe6 Qfb7 Qeb3 Qf7
3Nb3/1b1RRBQP/2b3r1/kn4q1/R1r2qN1/BrN1p3/3PB2n/b1rQ2K1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 a4 g5 f4 e5 Kf2 c5 h5 Kc7 d6+ Kb6 h6 c4 h7 c3 f6 e4 d7 c2 f7 g3+ Kg2 g4 f5 b3 f6 e3 Ne2 b2 Rh2 Nc6 Ng1 Qc7 d8Q Bg7 f8N Nh6 f7 Nd4 Nf3 Rb8 Na3 b1B Bb2 c1R Ng1 Bg6 Ne6 Rg8 f8R Be8 Ne2 Be5 Qe7 Rg6 a5+ Ka6 Qa4 b5 Qd1 b4 Rh5 b3 Rb1 Rb5 Rf3 Bb7 Nc4 Rb6 Ba3 b2 Nd8 Bf6 Ne5 Rc4 Qc1 Kb5 Kh1 g2+ Kh2 g1R Qg7 Qb8 Rf4 Qc7 Re4 Rh1+ Kg2 g3 Qc2 Ng4 a6 Ra4 a7 Ka5 Rh4 Nh2 Rc1 b1B a8B Ba6 Bb7 Rb3 Bd5 Bb7 Bf7 Nb5 Rg4 Rbb4 Rh4 Ba2 Qb1 Bad5 Rc3 Bdc6 Rd3 Rb3 Rd7 Be7 Qe1 Bb4 Rf4 Bc3 Rg4 Bb2 Nc3 Ba1 Be2 Rf1 Qc1 Qb8 Qc2 Rc1 Qd1 Rd4 Nf3 Ra4 Ree7 Re4 Ne5 Ra4+ Kh3 g2 Re4 g1Q Red4 Qg5 Ng4 Nf3 Kg2 Nh2+ Kg1 Qbf4 Rde4 Rc4 Red4 Rc5 Rb4 Rc4 Ra4+
5nK1/QR2P3/NqBP4/3pq1bk/7b/BrBbRbQ1/4Q2r/2Rnn1nN b - - 0 1 illegal: No proof kernel
K1N2rk1/1r1Pb1p1/Q1N2nn1/3bR1q1/1bb2r1R/q2B4/RPQ3QB/2r3B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 c5 h4 f5 d4 Kf7 e4 a5 b6 c4 b7 f3 Ke3 f2 d6 g3 d7 c3 d5 g2 Kd4 c2 h5 a4 e5 a3 d6 f4 Kc5 a2 h6 f3 h7 Nf6 e6+ Kg6 e7 Kf7 e8R Ra3 Re5 Qe8 Kb6 Qe6 d8Q Nc6 b8B Ne7 Ne2 g1B Nd4 Qd5 d7 Ra7 Be3 c1R Bd3 f1B Rh4 f2 Qc2 Ng6 Nd2 Bb7 Qdc8 Bb4 Nc4 Rf8 h8Q Be7 Qh5 Kg8 Qf3 Bc6 Nd6 Rb7+ Ka6 Be2 Qh1 f1R Qg2 Rf4 Bf2 Bh2 Bg1 Bg3 Bc7 Be1 Qa8 Bc3 Nc8 Bcb4 Bb8 Qc5 Bc7 Bd5 Nc6 Qe3 Qa7 Qg3 Qb6 Qg5 Bd6 Rb8 Ka7 Rb7+ Ka8 Bf1 Qa6 Be2 Rb1 a1Q Bb8 Qa5 Ra1 Qa3 Ra2 Bf1 Bh2 Be2 Ba7 Bf1 Bag1 Be2 Be4 Bec4 Bd3
Nnb2Rn1/3pqN1r/B1k2n1r/r1q2QQn/B4R2/8/B1RP1PN1/3r2bK b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 c4 h5 g4 a5 f6 e5 f7+ Ke7 c5 h3 c6 Kd6 c7 a4 b7 e4 b6 h4 g5 h2 g6 h3 g7 b3 Nf3 a3 Nc3 b2 Rc1 b1R Nh4 e3 Qg4 a2 Ng2 a1N Qf5 Nc6 b8Q Rh5 b7 Qg5 Nd5 Ra5 Bc4 Rh6 Kf1 Nb3 Nb6 Nc5 Na8 Ne4 Bb3 Nef6 Ba2 Be7 f8R Rh7 Rg1 h1N Qa7 h2 b8N Rb6 Rc2 Bd8 Qa6 Be7 Qab5 Ng3+ Ke1 Ngh5 Kf1 h1R Bb3 Nb4 Nc6 Na6 Ne5 Nb8 Ba2 Qh4 Qg5 Qd4 Qd3 Bd8 Qdf5 Qc5 Nf7+ Kc6 Bb3 Be7 Ba2 Bd6 Bb3 Bb7 c8B Bh2 Ba2 Ne7 g8B Rb1+ Ke2 Rd1 Kf3 e2 Bb3 e1Q Ba2 Ba6 Bb3 Bd3 Ba6 Qe6 Re1 Bg1 Re4 Rh2 Rf4 Rh4 Nh8 Qd6 Bge6 Neg8 Nf7 Qe7 Bec4 Ng3 Ba2 R4h6 Bcb3 Bf1 Ne3 Be2+ Kg2 Ngh5 Kh1 Bf3+ Ng2 Be4 Be2 Bd3 Bf1 Ba6 Bd3 Bb7 Ba6 Bc8 Ba4+
r1r1bn1q/rQp1N1n1/5Rbb/q1Q5/R1Pb2B1/BK2R3/2PN2k1/2NQr3 b - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 f3 gxh4 f4 exf4 d3 Qe7 Kd2 Qe6 Ke1 Qc4 dxc4 Bg7 Na3 Bh6 Nb1 Bf8 Kd2 Ke7 Kc3 Kf6 g4 Ke5 e4 d5 b4 a5 b6 h5 b5 f5 b7 f3 b6 f4 g5 d4+ Kb3 d3 g6 d2 g7 f2 Rh3 a4+ Kb2 a3+ Kc3 f3 Be2 Kf4 e5 f1Q e6 f2 e7 a2 e8N Bf5 Nf6 Qe1 Bg4 f1R Re3 h3 Ne8 h4 Rg3 h2 Bb2 h1R Bc1 h3 Kb3 h2 Bf3 Ne7 g8Q Nd7 Qd5 Bg6 b8R Nf5 b7 Bg7 Nd6 Rc8 Bb2 Nf8 Qe2 d1Q Bg4 Qd4 Qa5 Bh6 Re3 Qh8 Qc5 Ng7 Nf5 Qd2 Ne7 Be8 Re6 Kg3 Qd3+ Kg2 Re3 Rf6 Ne2 Qa5 Qd1 Re1 Nc1 Rfa6 Nd2 R6a7 Ba3 h1B Bb4 Kh2 Ng8 Bg6 Ne7 Re8 Rd8 Bc6 b8Q Kg2 Rd6 Rc8 Rf6 Bce8 Qb7+ Kh2 Rb1 a1B Rb2 Kg1 Ra2 Bd4 Ra4 Kh2 Ba3 Kg1 Nf3+ Kg2 Nd2+
bB2qb1N/2pR1Q2/2k1Pr1b/r1b1n2q/r1n4B/N2B4/N2rR2P/1KQQ4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kc2 f5 e4 a5 b4 f3 d6 f2 b6 f4 d5 a4 e5 g3 b5 g2 b7 f3 b6 g4 Na3 g3 Nh3 g1B Qd2 g2 Bb2 Nc6 b8B Qe8 b7 Na5 Bd3 f1R Rd1 f2 Kb1 Nf6 Ng5 Nc4 Qc1 Ng4 Ne4 Ra5 Nc3 Rh6 Re1 Rf6 Re2 Rd1 Na2 f1Q Bc3 Bc5 Be1 g1B Bh4 Bge3 Rg1 Nh6 Rg7+ Nf7 Rh7 Beh6 Rg7 Kd8 d7 Rd2 e6 Qd1 Rh7 Ke7 d8N Kd6 Rg7 Nfe5 Nf7+ Ke7 Nh8+ Kd6 Rh7 Bd7 Rf7 Bc6 Re7 Qh1 Rg7 Qf3 Rh7 Qfh5 Re7 Bd4 Rd7+ Kc5 d6 Bd5 Rh7 Kc6 d7 Bdc5 d8Q Be4 Rd7 Bg2 Ba7 Be4 b8Q Bd5 Nc2 a3 Qbb2 Bh1 Bb8 Bg2 Qe7 Bh1 Qd1 Be4 Nc3 Ra4 Qf7 a2+ Kc1 Bd5 Na3 a1R+ Qb1 Raa2 Qbc2 Ra5 Kb1 Bf3 Qcc1 Bh1 Nc2 R2a4 Na2 Kb5 Bh7 Ba8 Na3+ Kc6 Bd3
2qN2Rr/1PN1k1b1/1nR2qr1/4B3/B2Q3p/1Bnb3r/2P1b2b/KQNr1Q2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 f4 d5 g4 a5 b4 h5 f6 h3 f5 h4 g5 h2 f7+ Ke7 b6 e4 b7 a4 b5 a3 b6 a2 g6 d3 Kc3 e3 Kb2 d4 g7 d2 f6+ Kd6 Nc3 d3 Nd5 e2 Nc7 e1B Ne2 Ne7 g8B Bg3 Rg1 Nd7 b8Q Bg7 f8N h1R Bb3 Rh3 Nfe6 Ba6 b7 Bb5 Qa7 Bh2 Qd4+ Nd5 f7 Qc8 Nd8 Nb6 f8Q+ Kd7 Rb1 Ra6 Ka1 Bc4 Qf4 Ke7 Bb2 Nc3 Nc1 Bb5 Be2 Bc4 Qe1 d1B Qff1 d2 Bg4+ Bde2 Bd7 d1R Bda4 Bd3 Rg6 Bge5 Rg8 Bg7 Qdf2 Nb5 Be5 Nc3 Qd4 Na8 Bf7 Rg6 Rb5 Nb6 Rc5 Ne4 Qeb4 Nc3 Qb1 Bf3 Kb2 Bfe2 Rc6 a1Q+ Kb3 Re3 Bf4 Rh7 Qd5 Nb5 Bg3 Qc3+ Ka2 Qf6 Be5 Rh8 Qd4 Nc3+ Ka1 Rh3 Bfb3
3bNrn1/rp2q2b/3k2nb/P1N1RR2/1K1brPQR/3Qr1q1/BQ2NB2/8 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 e5 a4 h5 f4 c5 g4 c4 g5 h3 f6 h4 f7 c3+ Kc2 e4 Kb3 h2 a5 h3 g6 c2 g7 e3 d6 e2 d5 e1B Na3 Qe7 Rb1 Bh4 Nc4 Nc6 Qd3 Ra7 Be3 c1B Ne2 Ne5 Bf2 Be3 Re1 Ng6 Qd4 Bf6 Qb2 Bed4 Ka4 b3 Kb4 Bg5 Bg2 Bh6 Be4 Bg5 Bb1 Bgf6 Ba2 Bg5 Rhg1 h1Q Rg4 h2 Rh4 Qg1 Ne5+ Kd8 Ng4 h1R Nf6 Bf5 Ne8 Kd7 Bb1 Qg3 Ba2 Nh6 g8Q Rh3 Qg7 Bb1 Qg8 Bfg7 f8R B7f6 Qg7 Ng8 Rf7 Bh6 Rf8 Bfg5 Rf5 Nf8 Qg6 Bgf6 Qg4 Ng6 Nc3 Bfg5 Ree5 Be4 Ne2 Bc2 Qb1 b2 Qa1 b1R+ Qb2 Re1 Qb3 Qf6 Qb2 Kd8 d7 Qe7+ Nd6 Kc7 d8N Kd7 Ne6 Bb1 Nc5+ Kc7 Ng1 Re4 Ne2 Bf6 Nc4 Bc2 d6+ Kc6 d7 Bd3 Na3 Kd6 d8Q+ Kc6 Qc8+ Qc7 Nb5 Qg1 Nd7 N6e7 Nb6 Rh7 Qd2 Rf7 Nd5 Rf8 Nb6 Rhe3 Rfh5 Qg3 Nd6 Bfg5 Na4 Bb1 Re6 Re5 Qb2 Bh7 Qe8+ Qd7 Nc5 R5e4 Re5 Ng6 Qf7 Qc7 Ne8 Bd8 Qc4 Qf7 Qd3 Qe7 Ng7 Kc7 Rhf5 Kd6 Ne8+
1qQr2kB/2RBK1Nb/1QRnP2p/7Q/3r2qP/2r4q/5r1b/2BR1bNr b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Bg2 Nc6 Bf1 Nce7 Kd2 exf4 Ke1 f3 Ra5 f4 Ra1 Nf5 gxf5 Bb4+ Nc3 Bc5 Nb1 Bf8 Kd2 Kf7 Kd3 g5 Ke4 d5+ Ke5 a5 c4 g4 b4 h6 h4 d3 e4 f2 c5 d2 b6 d4 b5 a4 f6 a3 c6 d3 c7 a2 b7 g3 b8B g2 b6 f3 b7 Ra3 Rh3 Bf5 c8R Ne7 Nc3 Kg8 Qe2 d1Q Na4 d2 Rc7 Nc8 Nc5 Qb3 Ne6 d1R Ng7 Rd4 Rb1 a1R f7+ Kh7 Qd1 Nd6 Bb5 f1B Bd7 f2 Qh5 Qe3 Ba7 Qb8 Kf6 Rc3 e5 B5d3 Rh1 Qh3 e6 Rg8 Rb6 Bg6 Nf3 g1Q Rbc6 Qgg4 Ng1 Kh8 Bc5 Bh7 B5a3 Ra2 Bab2 Ra1 Ne8 Bg7+ Ke7 Be5 f8Q Bh2 Ng7 Ra2 Qc8 Rd8 Ba1 Kg8 Bab2 Bc4 Ba1 f1R Bab2 Ba6 Ba1 Raf2 Bab2 Qa7 b8Q Bc4 Qb6 Qb8 Nf3 Rfd1 Re1 Bf1 Ng1 R1d3 Rd1 Rg3 Ne2 Rg1 Ba1 Rh1 Ng1 Ne8 Bab2 Nd6 Qg6 Rdf4 Qh5 Rcc2 Ne8 Re4 Be5 Rc3 Bh8 Rd4 Ng7
bQr5/3bBkbb/1RQ1N1NQ/1Nn1n3/1pb5/q1q1P3/1P1qR1B1/1b1B2K1 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 gxh4 a4 a5 f5 b4 f6 exf6 Qc2 f5 Qb3 f4 Qd1 Ra6 Kf2 Rb6 Ke1 Rb5 axb5 Be6 Ra3 Bh3 Ra1 Bc8 Kf2 h5 d4 f5 g4 c5 b6 a4 b7 c4 e3 c3 d6 c2 d5 h3 d7+ Kf7 d6 a3 g5 h4 Bb5 a2 Ne2 h2 Kg2 h3+ Kf2 f3 Nf4 Nc6 b8Q Bg7 Ba4 Ne5 Re1 h1B Kg1 Nf6 Nc3 Ne4 Nb5 Nc5 Bd2 c1Q Re2 Qc3 Ng6 f4 Be1 Rg8 Rc1 a1Q Bh4 Qaa3 Qc2 Rf8 Qe4 Rh8 Qc6 f2+ Kf1 h2 Bd1 Be4 Ra1 Qe7 d8Q h1B d7 Qd6 Qdb6 Qdd2 Ra2 Bb1 d8N+ Kg8 Ne6 Kf7 Qa6 Bd7 Qab6 Bhe4 Ra1 Bf5 Kg2 f1B+ Kg1 f3 Ra2 Qab3 Ra7 Bg2 Rb7 Rc8 Qa6 Qa3 Rb6 Bfe4 Ngf4 Bf5 g6+ Kg8 Be7 f2+ Kh2 f1B Kg1 Bf6 g7 Bh7 Ng6 Kf7 g8B+ Ke8 Nd8 Bg7 Bd5 Bh1 Ne6 Kf7 Rg2 Bc4 Re2 Bf3 Be4 Bg4 Bg2 Bf3 Qcd6 Ba8 Qab7 Qdd4 Qbd5 Qdd2 Q5c6 Ned3 Qh2 Ne5 Qh6
bb2KbB1/3n2q1/8/1Qr1N1b1/3pNQP1/N2PR1q1/1QnqR3/qbB2k1B b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 a4 g5 h4 gxh4 b6 Ra6 b7 Rg6 b5 Rg5 b6 Rb5 axb5 a4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 c5 e3 f5 Rh2 d5 Bb2 c4 Bg2+ Kd3 e4 a3 e5 f3 e6 f2 e7 f1Q e8B a2 Bd7 c3 Bf3 h3 Be8 f4 Bg2 f3 Bc1 f2 Bd7 c2 Nc3 Ne7 Rb1 a1B Na2 Nf5 Bf3 Be5 Rg2 h2 Nh3 h1B Be6 Nd7 b8N Nd4 b7 Qg1 b6 f1Q Re2 Qg3 Nc6 Bb8 Nc3 h6 Kg6 h5 Kf7 h4 Rb3 Rh5 Ng5 h3 Nge4 h2 Qe1 Qf6+ Ke8 Qfg2 Qf1 Qg7 Bg8 Rf5 Ba3 c1B Bb2 Nc2 Nb1+ Qc3 Ra3 d4 Rb3 Rc5 Na3 Q2f2 Bg2 Qf6 Qf4 Qg7 Bf3 Ne5 Bg2 Bf5 Bf3 Nd7 Bg2 Ba7 b8Q Bh7 Qbe5 Bb8 Bf3 Bg2 b7 h1Q Qef5 Rc4 Qa5 Rc5 Qb5+ Rc4 Nf6 Qh8 Re6 Bbd6 b8Q Ne3 Qh6 Qg7 Qc8 Bb8 Qc7 Qd1 Qh2 Qc2 Bd5 Ke2 Be4 Kf1 Bd5 Bh3 Bh1 Bg2 Qd6 Qd1 Qde5 Bc2 d3 Bd2 Bc1 Qa1 Rb2 Bb1 Qg5 Rc2 Re4 Rc5 Ne5 Ba5 Qgh6 Bd8 Qf4+ Bf3 Qc2 Qe2 Qcb3 Qef2 Rd2 Nc2 Re3 Ba8 Ne4 Bde7 Qb2 Bg5 Nf3 Qe1 Rde2 Qd2 Ne5+
2nnRK2/2n1PNBq/rN1q1R1n/1nrQ1Br1/2p3k1/b1RQQ3/2Pr4/7B b - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 Ra4 gxh4 Ra5 Na6 Ra1 Nb8 f3 e5 Na3 e3 Ke2 Bb7 Nb1 Bd5 Kd3 e4+ Kc3 e2 Ra5 e3 Ra1 Be4 fxe4 Be7 Na3 Bd6 Nb1 Bf8 Kc4 Ke7 Kc5 Ke6+ Kc4 e1R d4 a5 g4 c5 b4 f5 g5 h5 g6 f4 g7 h3 b6 a4 e5 Kf5 d5 e2 b5 a3 b7 a2 e6 h2 d6 f3 Kd5 c4 d7 f2 b6 h4 Na3 h3 Bh6 Ra5+ Nb5 Ba3 e7 Nc6 b8Q Kg4 Bg2 f1N Ke6 Ne3 Kf7 Nd5 b7 Nc7 Na7 Rg5 Qd5 Rd1 Nc8 e1N Qa7 Nf3 b8R Rd2 Nb6 Nfd4 Nf3 Ndb5 Rhf1 h1N Rad1 Nf2 Bh1 a1R Ne5+ Kh5 Rc8 Ne4 Rf6 h2 Rb1 Ra2 Rb3 Rh7 Ra8 Qb8 d8Q Ned6+ Kf8 Nc8 Q8d6 Nd8 Nf7 Kg4 Rc3 Rh8 Qd3 Rc5 Q6d5 Rh7 Bg5 Nh6 g8B Rg7 Bh7 Ra1 Be3 Rg5 Bd4 Ra2 Rc6 Ra1 Bg7 Ra2 Rf6 Ra1 Bg2 h1Q Bg6 Qh5 B6e4 Qg6 Bh1 Qh7 Bg6 Bb4 Qa3 Ra2 Qc1 Ra6 Qe1 Ba3 Qee3 Bc1 Bge4 Ba3 Bf5+ Kh4 Nd6 Nc6 Re6 Ne8 Na4 N8a7 Bg6 Kg4 Nf7 Qd6 Nb6 Nec7 Re8 Nd8 Rf6 Nc8 Bf5+
1Qq2Q2/br3RKb/1p3BNP/2b3R1/1P1B4/q1r3n1/BkN1R3/brr2r1Q b - - 0 1 legal: proof: f4 d5 g4 h5 a4 hxg4 c4 e5 cxd5 exf4 a5 Nd7 a6 b6 Nc3 Nc5 Nb1 Nb7 axb7 Rh3 Qc2 Rh4 Qd1 Rh8 Kf2 Kd7 b8R Kd6 b4 Ke5 h4 Kd4 e4 f5 h5 c5 d6 a5 d3 g5 e5 a4 e6 c4 h6 f3 Kg3 f2 e7 f4+ Kh2 c3 e8Q g3+ Kg2 a3 Kf3 c2 d7 g4+ Kg2 a2 Rh3 Bd6 Rh5 Ne7 Rg5 Rh7 Qf8 Nf5 Rb7 Ra3 Bb2+ Rc3 Na3 c1R Nh3 Bb8 Rc7 Qe8 d8B Ba7 Rf7 Qe6 Be2 f1R Rb1 a1B Nc2+ Ke5 d4+ Ke4 Rf6 Rb7 Rf7 Qa2 d5 Qa3 d6 Be6 Rf6 Bg8 d7 Bh7 Rf7 Rh1 Bd3+ Kd5 Be4+ Kc4 Bf6 Kb3 d8Q Re1 Qb8 Rh1 Qd4 Rhf1 Qg1 f3+ Kh1 g2+ Kh2 f2 Qh1 g1R Nf4 g3+ Kh3 g2+ Kg4 Ng3 Ng6 Rfe1 Bf5 f1Q Be6+ Qc4+ Bd4 Rgf1 Kh4 Nf5+ Kh5 g1B Bf6 Bc5 Bd5 Rcf3 Bbd4+ Ka2 Be6 Rc3 Rb3 Rb1 Bd5 Rec1 Be6 Rcf3 Re3 Rg3 Re4 Rc3 Re2 Kb2 Bd5 Be7 Be6 Qc8 Ba2 Bc5 Ne7 Bg8 Kg6 Ng3 Kg7 Bh7 Ng6
3BB1K1/nprRBQ1n/Q2nr1N1/1b1R2b1/7r/1Pr2n2/2R1r1P1/2NNnk2 b - - 0 1 illegal: No proof kernel
n2rq3/1B1k1qnB/2b1p3/4r1rQ/2RR2q1/R2NP3/1B1KQNPq/1Q3r1n b - - 0 1 legal: proof: f4 c5 a4 g5 d4 gxf4 h4 b5 axb5 cxd4 Na3 Bh6 Nb1 Bg5 hxg5 Bb7 Rh6 Ba6 Rh1 Bc8 b4 h5 c4 f5 g6 a5 e3 d5 c5 f3 c6 a4 b6 f2+ Ke2 a3 b5 e6 g7 a2 b7 d3+ Kd2 d4 b6 h4 c7 f4 Nh3 f3 Qe2 Rh5 Nf4 h3 Rh2 Nh6 g8R+ Kd7 Qd1 Raa5 Rg5 Na6 b8Q Re5 b7 Qe8 Rg4 Rhg5 Qc2 Nf5 Ba3 Ng7 Rh1 h2 Be2 f1Q Rg1 h1N Nc3 f2 Rd1 a1Q Ne4 Qb1 Bb2 Qa1 Qa7 Qa4 b8Q Bb7 Rh4 Bc6 Qac5 Qh5 Rg4 Qh2 Ra1 Qb5 Ra3 Qa4 Qbb3 Qb5 Qb1 Qb8 Q3d1 Qe8 Kc1 d2+ Kc2 Qh3 Bd3 Qh2 Qe2 d1R c8B+ Kc7 Bb7 Kd7 Qb4 Nc7 Qa5 Na8 Rh4 Qe1 Rg4 f1R Nf2 Qb4 Bf5 Qbe7 Bh7 d3+ Kc3 d2 N4d3 Q7f7 Rc4 Rde1 Qb5 d1Q Qh5 Qg4 Kd2 Rc1 Qa6 Bd5 Rd4 Rc8 Qc4 Rd8 Qcc2 Qff5 Qcd1 Qff7 Qe2 Ng3 Rc4 Bc6 Rh1 Qg1 Rh4 Qh2 Nb4 Nh1 Nbd3 Qgg3 Rhf4 Qg4 Rfd4+
nb1Q4/3rbqr1/bRNQN1k1/R2n1RB1/2r1B3/1P4p1/q5Pp/n1B3NK b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 f5 d4 Kf7 e4 g5 d6 h5 d7 c5 d8N+ Kg6 b6 a5 d5 Qh4+ Kf3 c4 b7 a4 b3 a3 d6 c3 d7 g4+ Ke2 f3+ Ke3 f2 e5 c2 e6 f4+ Ke2 a2 e7 f3+ Ke3 g3 e8R Rh7 Re6+ Nf6 Na3 Be7 Qd2 Na6 b8B Rg7 Rh2 Nc7 Bc4 f1Q Rb6 f2 Nh3 Ra7 Bd5 Na8 Nc4 Ba6 Na5 Qa4 Bf4 h4 Ne6 Qa3 d8Q Rd7 Qb4 Qa4 Bf3 Nd5+ Kd2 Qa3 Qd6 Qb2 Nc6 Qa3 Rb1 Qa4 Rb2 a1N Ra2 Qa3 Be3 Qb2 Ra5 Qa2 Ng1 h3 Ne2 Qh1 Bh6 f1R Bf4 Qg1 Rh1 Re1 Bg5 Qc5 Rf1 Qf2 Bg4 Qf6 Rf5 Qf7 Bf3 Rh1 Q8b8 Rf1 Qd8 Rf2 Be4 Rf3 Ke1 Rc3 Kf1 Rc4 Kg1 h2+ Kh1 Qf6 Qa3 Qf7 Bcf4 c1B Ng1 Bb2 Bd2 Be5 Bc1 Bb8 Qd6
RB4K1/2N2R2/Qr1b2B1/1n2qNPn/Rp2b1qP/r4pb1/n6N/3q1QkB b - - 0 1 illegal: No proof kernel
1Qb3Q1/4RK1n/1BrRn1Q1/2Bpp2k/PR1PN2q/3N4/3qr3/bqb2Nr1 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 cxb4 Bc4 a4 Bb3 axb3 Ke2 Kf7 Ke3 e5 Ke4 g5 Kd5 b5 f4 d6 h4 g4 c4 b2 a4 g3 f6 b3 h6 Kg6 h5+ Kf5 f7 g2 c5 b4 c6 Kf6 c7 Nc6 f5 Kg5 h7 Bh6 f8R Bb7 Ke6 d5 c8N Qd6+ Kf7 Qb8 f6 Nd4 Nd6 Nc2 Re8 Bc8 Ne2 g1B Nf4 Ra6 Nd3 Nd4 Qc2 Rc6 Re7 Ne6 Ne4+ Kg4 Ra3 Bd4 Rh2 Bhe3 h6 Bc3 Rg2+ Kh5 Rg6 Qb5 Ke8 Qa6 f7 Qa5 f8B Nf6+ Kf7 Rg8 h8Q Nh7 Rf6 Rg2 Qg8 Re2 Rg6 Nf4 Rd6 Ne6 Ndc5 Qd8 d4 Bg5 Nbd2 b1Q Nd3 b2 Rb3 Qa2 Nf1 b1R Ba3 Bc1 Rb2 b3 Bc5 Ra1 Bb6 Rb1 Red7 Qh4 Re7 Re3 Qcg2 Re2 Qg1 Ra1 Rb1 Qd2 Q1g7 Nf6 h7 b2 h8Q+ Nh7 Qg2 Ra3 Ra1 b1Q Q2g3 Qb4 Rb1 Ba1 Qg2 Qb3 Qg1 Qbc2 Rb4 Qb1 Q1g7 Ra2 Qf6 Rg2 Qfg7 Rg5 Qg6+ Kg4 Red7 Qd1 Qhf6 Bb7 Qd8 Re2 Qb8 Bc8 Rb7 Qd2 Rdd7 Qh6 Bfc5 Qh4 Q6g7 Rg6 Rd6 Kh5 Re7 Rg1 Qg6+
7q/BR1rQ2n/qQ5r/kqP1QPR1/1N2n3/K3pn1p/1RBrb1Nb/3N4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 Kd7 g4 Kc7 c4 Kb6 Kc2 e5 Kb3 a5 g5 h5 f6 h3 f5 h4 g6 d3 g7 d2 f7 e4 Nc3 e3 Nf3 h2 Be2 d4 Rb1 h3 Ne1 d3 Ng2 Nf6 g8R Bd6 f8Q Ba6 Rg5 Nbd7 Qe7 a4+ Ka2 a3 b4 Qg8 Rb2 Rd8 Qb3 Nh7 Bd1 Ne5 Bc2 Rd7 Nd1 Nf3 Qc3 Bb8 Qce5 Qd5 Kb3 a2 Ka3 Bd6 Re1 h1N Re2 Qg8 Rb3 Qe8 Bb2 Nf2 Ba1 Ne4 Bd4+ Kb7 b6 Qd8 Qa5 Bh2 Qae5 Bb5 Rb1 Ka6 b7 Qg8 b8Q a1Q+ Kb3 Qc8 Ba7 Qe8 c5 Qc8 Nb2 d1R Rf2 Rd2 Nd1 Qd4 Ka3 Bc4 b5+ Ka5 b6 Qa6 b7 Qb5 Q5f6 Qd6 Qfe6 Qda6 Qee5 Re2 Qa1 Qbb6 Nb2 Nhf6 Ba4 d2 Qc7 d1Q b8N Qd6 Nd1 Rh6 Qd4 Qc6 Qde5 Nh7 Qcd6 Qd8 Rb7 Qab5 Na6 Qh8 Nb4 Qca6 Qdf6 Rc2 Rd2 Be2 Qfd6 Rc4 Rb2 Rd4 Bc2 Rd2 Qb6+
1N1r2n1/5nqb/r3qnr1/P7/RB1Q1RB1/4q3/p1P3Qp/kNbNR1QK b - - 0 1 illegal: No proof kernel
qrb2Q2/1nbRNK2/1Rb2P2/2B1rp2/1N1B2Pp/nr1Q1Bk1/q1R2Nn1/8 b - - 0 1 illegal: No proof kernel
1nN3Qq/1r2nR1Q/2N2PP1/2Q2q2/1b2Bn2/1K3p2/1BRqbrkp/R1N1r3 b - - 0 1 illegal: No proof kernel
Bn3b1N/r2b1r1Q/1K1pq3/npPrRP2/Q5qB/1nBq4/k2N1R1N/6Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 e5 Kc4 g5 Kb5 d6 f4 b3 c4 d3 a4 e4 h4 d2 a5 b6 c5 b2 h6 g4 h5 g3 h7 g2 h6 e3 a6 e2 a7 e1Q f6 Ke6 f7 Kd5 f5 Qg5 Nf3 g1Q Bg2 Qgg3 Ra2 Ne7 Nh2+ Kd4 Qh5 d1R Bg5 Nec6 Nd2 Kc3 Bh4 b1N Be4 Rg8 h8B+ Rg7 h7 Na5 Bf3 Qe4 Rb2 Qgd4 Re1 Qe6 Re5 Bd7+ Bc6 Qh3 Qg4 Qf3 Qg1 Qdg4 Ra2 Rg5 Bf6 Rg7 h8N Qfd5 Nb3 Rh7 Rf2 Nd2 Bg7 Kb2 Bgf6 Bg7 f8Q Ka2 Qf7 Bf8 Qg8 Rf7 Qh7 Qde4 Bg7 Qc2 Bgf6 Nf3 Nd2 Nd4+ Kb4 Ndb3+ Be4 Nbc6+ Kb5 Qb1 Ka6 b5 Kb6 Qd3 Bh1 Re8 a8Q Nb8 Bb7 Rc8 Qa6 Rc7 Ba8 Ra7 Re4 Bc8 Bc3 Bd7 Re5 Qc2 Ne4 Rd5 Nd2 Qd3 Qb7 Rd4 Qe4 Rd5 Qa4+
K2b4/5Bn1/1BRp2P1/N1RN1q2/kb2Q1B1/r1QPb2R/rpqq4/3Nn2n b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 Ke2 c5 Ke3 e5 Ke4 h5 Kd5 c4 g4 e4 f4 d6 a4 Kd7 f6 b2 f7 h3 a5 b3 g5 h4 g6 c3 d3 c2 b6 h2 f5 e3 b7 h3 f6 e2 a6 e1B a7 Bg3 Ne2 Nh6 Be3 c1B Qc2 Nf5 Ra6 Ng7 Nbc3 b1Q Bb6 b2 Nf4 Nc6 Nd1 Qc8 Be2 Ne5 Qc3 Be7 f8R Nf3 f7 Qc2 Rg8 Bd2 f8Q Ne1 Bf3 Bf2 Bg4+ Ne6 Qff6 Bd8 Qfd4 Bfe3 Qe4 Rh4 Rf8 Rh7 Rf5 Ng7 Ra4 Rh5 Rc4 Rh7 Rc6 Rh4 Rg1 h1Q Rg3 h2 Rf3 Qg2 Rh3 Rb8 a8B h1N Kc4 Qh2 Kb5 Rh7 Ka6 Rh4 Qcc4 Bb4 Ka7 Qhd2 Qc3 Rh8 Nd5 Rf8 Rc4 Qc5 Re5+ Kc6 Rg5 Rc8 b8N+ Kb5 Nc6 Ka4 Na5 Qb5 Bc6 Ra8+ Kb7 Ra6 Be8 Rf7+ Kb8 Rfa7 Bf7 Qd7 Rc6 Qf5 Nc4 Kb5 Rgh5 Ra3 Rg5 R7a4 Na5 Ra2 Ka7 R4a3 Ka8 Ka4 Nf4 Qf6 Rgc5 Qf5 Nd5
2bnNNQQ/r3R2K/BqPN1p1R/6rq/p1n2kq1/P4R2/1nQ1r2b/5B2 b - - 0 1 legal: proof: f4 c5 g4 g5 b4 e5 bxc5 h6 d4 Be7 dxe5 Bf8 Be3 Ne7 Bf2 Ng8 Bh4 gxf4 g5 Qb6 g6 Qd8 Bg5 hxg5 Kf2 Ke7 Kf3 Ke6 Kg4 a5 e4 d5 h4 b5 c4 a4 c6 f3 a3 f2 c7 b4 h5 d4 c5 f6 g7 d3 c6 b3 h6 d2 Kh5 b2 Kg6 g4 h7 g3 Qf3 d1N Qe2 g2 Nd2 b1R Rh6 Nd7 Nc4 Rb5 Nh3 Nb2 Nd6 Ra7 Qc2 Nb6 Re1 Rd5 Re3 N6c4 Rf3 g1Q+ Ng5+ Ke7 e6 Qg4 Bh3 f1Q e5 Qd1 Bf1 Rc5 Rh4 Nh6 g8Q Nf7 Rh6 Bb7 c8B Qb6 Ne4 Nd8 Nd6 Ba8 Ba6 Bb7 Qb1 Bc8 Qc2 Qf4 Nge4 Rd5 Nc5 Rd2 Nd7 Re2 Rh1 Bh6 Nf8 Qfd4 Rhh3 Bf4 Rh4 Bh2 Rh6 Qh4 Kg7 Nf7 Kg6 Qh5+ Kg7 Kd8 e7+ Kc7 e8R Nd8 e6 Qdd4 e7 Qf4 Qe6 Qfg4+ Ng6 Rf8 h8Q Rg8+ Kh7 Qf4 Qf7 Qfg4 Nf8 Rg5 Nf5 Qe4 Qfg8 Qeg4 Ng3 Kd6 Ne4+ Ke5 Nd6 Ne6 Rd8 Rc7 Rd7 Nd8 e8N Ra7 Re3+ Kf4 Rde7 Qb5 Rg3 Qb6 Rf3+
2B1qn2/2qr4/2p2Q2/N2qR2b/1bN1n2r/b1p2NBQ/1P1R1rP1/Bk1R3K b - - 0 1 illegal: Other
KB3brQ/2B1nb2/P3P1R1/2N2NqQ/3k1n2/1r1Bnp2/p1qRb3/r1N4Q b - - 0 1 illegal: No proof kernel
B1kqQQ1N/1rbB1P2/1b1RN1p1/1Rnr2N1/2K2prn/2RP4/5q1B/5b1q b - - 0 1 illegal: No proof kernel
4k3/3qPR2/1RN4B/N2bn2B/K1N2r1Q/pQ1Q2B1/qp1rP2b/r2qn1b1 b - - 0 1 illegal: No proof kernel
bRN3q1/Q1rkPR2/P1rpQ1pq/4B2B/4N3/qNnb1n1K/5B2/bnR5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 b5 Kg2 f5 h4 g6 e4 d6 c4 d3 a4 b3 a5 b4 e6 d2 h6 f4 a6 f3+ Kh3 b2 h7 b3 c5 f2 e5 Qf6 c6 Bd7 h5 Qf4 h6 Bg7 c7 Ne7 c8N Ra7 Be2 Nbc6 Bh5 Nd4 Ne2 Bc6 Ng3 Rc7 Rf1 Nf3 Ne4 Nd5 e7 Kd7 e8R Qe3 Qe1 d1Q Nbd2 b1N Rf8 b2 Nb3 Qf4 Be3 Ndc3 Bb6 Rg8 h8B Ba8 h7 Qd3 Qe2 Qh6 e6+ Kc6 e7 Kd7 Rf7 Rd8 Rc1 f1B+ Kg4 Bf6 Bf2 Qc4 Qe3 Bd3 Qa7 Qa4 Bg7 Qa3 h8Q Bd4 Qg8 Rf8 Rf4 Rf5 Qc4 Rc5 Be5 Rc6 Qg8 Nbd2 Qc4 b1Q Kh3 Qba2 Rf7 Ndb1 Qd5 Qad2 Ra2 Qg7 Rb2 Qdh6 Na5 Qg8 Rb8 Na2 Qc4 Ba1 Nb3 Nac3 Qe6+
3Rb1n1/4pk1q/4pB1P/2P2q2/2KNB1b1/Nr1r1nQQ/4BRrb/1n2N2Q b - - 0 1 legal: proof: e4 c5 d4 h5 dxc5 b5 g4 hxg4 a4 Ba6 axb5 Bb7 e5 Bc8 e6 fxe6 Ke2 d5 Kd3 a5 c4 g5 b4 d4 h4 g3 f4 g2 f5 g4 b6 g3 c6 a4 f6 a3 b5 a2 c7 Ra4 c5 Bd7 c8B Bh6 h5 Ra3+ Kc4 d3 b7 d2 b6 Na6 b8Q Nc7 b7 Rd3 Rh2 Bf4 h6 Nd5 Na3 Kf7 Be2 Be8 Nf3 g1R Ne1 g2 Bb2 Nc3 Qd6 Be5 b8N Nb1 Bb7 Qb6 Qc1 d1B Be4 Bg3 Qe5 Qc7 Qf5 Qe5 Qh3 Qf5 Nc6 Bb8 Nd4 Qh7 Bf1 Bg4 Be2 Bc7 Qf4 Rb3 Qfg3 Bf4 Nec2 Rd1 Bc3 g1N Rf2 Rd3 Ne1 Nf3 Qh1 Bd6 Qgh3 Bh2 Bb2 Nc3 Rd1 a1Q Rd2 Qb1 Ba1 Qf5 Rd1 Kg6 f7 Rh7 f8Q Rg7 Qg3 Qc2 Qh3 Nb1+ Bc3 Bc6 Qd8 Kf7 Qc7 Be8 Qe5 Bh5 Rd2 Rg2 Qeg3 Bg4 Ndb5 Qb2 Bf6 Qbe5 Rd1 Qh7 Nd4 Qef5 Ndc2 Re3 Rd8 Red3 Nd4
1q1qb1K1/1p6/RB1Rrrk1/3p1R2/1bN2QB1/bN1n2P1/1QNrn1P1/5Bq1 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Nb1 f5 exf5 g5 Ke2 g4 Ke1 g3 hxg3 Bh6 Ba3 Bg7 Bc1 Bf8 Ke2 Kf7 Kd3 e5 Ke4 h5 Kd5 e4 c4 b3 f4 d3 a4 d2 f6 e3 c5 e2 f5 e1B a5 h4 c6 h3 a6 b2 a7 d6 c7 h2 Qb3 d1Q+ Nd2 b1R Qb2 Rh7 Nf3 Nh6 Nd4 Nd7 Nc2 Nc5 Ra6 Bd7 c8B Nd3 Nb3 Be8 Be3 Bb4 Bb6 Rg7 Rg1 h1Q Bd7 Rc8 a8N Rc6 Bc8 Rg6 Bd7 Kg8 f7+ Kh7 f6 Qb8 Bg4 Nf5 Ke6 Be7 f8R Nd4+ Kd5 Qh2 f7 Ne2 Rh1 Rh6 Rg1 Kg6 Ke6 Qh4 Rh1 Qg5 Rh5 Qc5 Rf5 Qg1 Rh8 Qd2 f8Q Rd1 Rh7 Qg5 Rhf7 Rd2 R7f6+ Kh7 Rg6 Qh4 Qff6 Bf8 Qfe5 Qhd8 Qf4 d5+ Qd6 Bd7+ Kf7 Be7 Qc7 Re6 Qf4 Ba3 Rgf6 Beb4 Rg6 Re5 Rc6 Ree6 Rd6 Be8+ Kf8 Kg6 Kg8 Qdc8 Ba7 Qd8 Nb6 Rh7 Nc4 Rf7 Bc5 Rff6 Bb6
N3Bnb1/Qp1B3P/pr3nq1/4QPq1/4Rq1R/2K3Rr/2NBNrb1/4b1k1 b - - 0 1 illegal: No proof kernel
b2bK2n/1p1pP2B/2NNQ3/1P1r1RQ1/5Bk1/1BQb1N2/2rRrn2/2nq2q1 b - - 0 1 illegal: Other
5KRq/p1qq4/8/1BQ1k1Pp/r1R1n2B/bR6/b1NQnNrP/N3Bn1b b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Ke2 Kd7 c4 Ke6 d4 h5 g4 f5 b6 f3+ Ke3 f2 Kf4 e3 Kg5 e2 Kg6 e1Q c6 f4 c5 f3 c7 Qc3 b7 Nh6 c6 Qc5 Ra4 Nf5 Nd2 Nd7 b8N Nf6 Nh3 Bb7 c8R Ng3 Na6 Rb8 c7 Qa5 Be2 f1B Nb3 f2 d5+ Kd6 Kf7 e5 Qc2 e4 Na1 e3 Bd2 Rg8 Nb4 Qb5 Rg1 Ke5 Ra3 Bc6 Rd3 Qb7 Qc1 Qa8 Nbc2 Ba3 Be1 Bb7 Qd2 Qd6 Rc3 Qc5 Ba6 Bc4 Rd3 f1N Bf2 Ba2 Rb3 Bc6 Bc4 Rb4 Bb5 Ra4 d6 Bh1 d7 Qb6 d8B Nfe4 Bh4 Qab8 Rg2 Qh6 Rg1 Qh8 Rg2 Nc3 Rg1 Nge4 Rg3 Rg6 Rg8 Qb6 c8Q Qd8 Rf3 e2 Rd3 Rg5 Rd4 Qd5+ Ke8 Rg6 Qc4 Rg7 Qb4 Qd7+ Kf8 Rg5 Qd1 Qc7 Rc4 e1Q Qd3 Qb1 Be1 Ne2 Nf2 Qd1 Qe3 Qdd7 Qd2 Rg6 Ba6 Rd6 Bb5 Rd3 g5 Rg3 Rd3 Rg4 Rb3 Rg2 Qc5+
B1r2B1K/2brQ3/b2B4/1N1n1p1R/PrP2k2/1q3pr1/3RQ1bn/1N1r2RQ b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 axb4 Kd2 Ke7 Kd3 Kf6 Kd4 Kg5 Ke5 d5 e4 b5 a4 f5 c4 d4 h6 b3 h3 d3 h7 b2 c6 d2 c7 b4 Ne2 b3 Nd4 Na6 Nb5 Qd3 Qe2 d1R Bg2 Nb4 Be3 Ba6 c8R Nd5 Rd8 Ngf6 Bc5 Ra7 Rd6 Rg8 h8Q Ng4+ Ke6 g6 e5 Rd7 Be4 f3 h4+ Kf4 h5 g5 h6 Nh2 h7 g4 Rg1 Be7 Kf7 g3 e6 Bd8+ e7 g2 Rh1 Rf8+ Kg7 Bc7 Rg1 Rb8 Ra2 Ra8 Rh6 Rc8 Rh5 Qc2 Qf8 Qd3 Kh8 Qc2 e8Q Qd3 Rh1 g1R Qfe7 Rg3 Rg1 Qc2 Qg2 Qd3 Qh1 Qc2 N1a3 b1B Rb2 Qd3 Rd2 Bc2 Nb1 b2 Nd4 Qb3 Nb5 Nf6 Bd5 Bd3 Ba8 Bf1 Qe2 Nd5 Bf8 Kg4 Q8e7 Bg2 Kg7 Re1 h8B Kf4+ Kh7 Rd1 Bd4 Nb6 Kh8 Nd5 N1c3 b1R Bc5 Rb2 Nb1 Qa3 Rg5 Rb4 Rh5 Qb3 Bd6+
r1rB2Bb/4nbB1/1bQ1N2Q/n3KprP/3N3P/2NR1b2/1R3pq1/1Q3b1k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kf3 Kd5 b4 g5 h4 a5 b6 a4 b7 d3 b5 d2 b6 a3 Rh3 a2 Bb2 Ne7 Qc1 d1B Bg7 Nbc6 b8B Na5 Bc7 Ba6 b7 d6 c3 Bb3 b8Q Qd7 e3 Qc6 Bd8 Qb7 Bg2 Bf1 Ne2 Qc6 Nd4 g4+ Kf2+ f3 Kg3 Ke4 c4 d5 c5 Qg6 c6 Qg5 c7 Bbc4 Nc6 d4 c8Q d3 Nd4 d2 Qc6+ Bd5 Qb4 d1B Qh6 Bf7 Qcc6+ Nd5 Rh2 Bc5 Qb3 Bb6 Nc3+ Kd3 e4 Ke3 e5 f2 e6 Bf3 Rh3 Ne7 Rb1 a1B Rb2 Rg8 Bc7 Rgc8 Bd8 Kd3 Bh1 Qg6 Kf4 g3 Qa2 g2 Ke5 g1R Rg3 Qg5 Qb1+ Ke3 Rh3 Ng8 e7 Rg2 e8N Ne7 Qh8 Qg6 Nc7 Rg5 Qd7 Qc6 Qh6 Qb7 Nce6 Qe4+ Kd6 Qg4 Qc6 Qg2 Nf8 Kf4 Nfe6+ Kg4 Rh2 Kg3 Ke5 Qg1 Rg2+ Kh3 Rg4 Kh2 Rg3 Qg2 Rh3+ Kg1 Rg3 Bd5 Re3 Bf3 Rd3 Rg6 Nb3 Kh2 Ng5 Bc4 Kf4 Bf7 Bd4 Bg8 Rc2 Kg1 Na4 Bd1 Bc3 Qh3 Bd5 Qh1 Bd4 Bc3 Rb2 Qg2 Bh8 Bcd4 Nc3 Kh1 Bc4 Bg7 Nd4 Bf3 Bf7 Bf6 Nge6 Rg7 Qa4 Rg5 Qc6 Bh7 Bg8 Bg6 Bg7 Bf7 Bf8 Bh8 Bg7 Qg1 Ke5 Qh2+ Nf4 Qg2 Nfe6
b1N5/1Q2bb2/QB1n1Brp/PnN2Bn1/2Rq3R/1KP2r2/n2k1p2/1Q1n3R b - - 0 1 illegal: No proof kernel
7q/b2n1r2/BnbnP2B/Rp4bQ/3PN3/2RK4/krQ1pNQB/2b2b1N b - - 0 1 illegal: No possible last move
B2Q1qn1/b1R5/k1N1p3/1b2rNPn/2B3rp/3KNbRQ/2P3br/b2R2B1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 h5 f4 d5 b4 Kd7 g4 Kc7 b6+ Kb7 g6 a5 f5 e3+ Kd3 a4 f6 a3 b5 a2 f7 e2 g5 e1R g7 Ra5 Qg4 Re5 Rh3 Ra4 Ne2 Nd7 Rg3 Ndf6 Qh3 Bd7 Nbc3 e6 Nd1 Rh6 Ne3 Bc5 f8R Qe7 Rb1 a1B Rc8 Qf8 Bd2 Rh7 Rd1 Rh8 Be1 Rb4 Bf2 Bc6 Kd2 d3 Bg1 Rg4 Nd4 Be8 Ndf5 d4 Bg2+ Bc6 Bd5 Rh6 Bc4 Bg2 Ke1 d2+ Ke2 Rh8 Kd3 Rh6 Re1 d1B Rc7+ Ka8 b7+ Ka7 Rf1 Bdf3 b8N+ Kb6 Nc6 Be2+ Kd2 d3 Rd1 Bef1 Nce7 Ka5 b6 Rh8 b7 Ba7 b8Q Rh6 Bd5 Ka6 Qd8 Be2 Ba8 Bef3 Ke1 d2+ Kf2 Bc6 Ke2 Be8 Nc6 Rh7 Rc1 d1B+ Kd3 Bdf3 Rf1 h4 Re1 Nh5 Rd1 Rh6 Qb8 Rf6 Qd8 Ne7 g8B Rf7 Bh7 Ng8 Nd6 Rff4 Be4 Bd7 Bd5 Rf6 Ne7 Bb5+ Bc4 Rff4 Ndf5 Rfe4 Nf1 Re2 Nc6 Bh1 Nh6 Rh2 Nf5 Bhg2 N1e3
1Q2bR1N/2BnK1bR/1bP1p2P/3B1r2/3b2NQ/1qbn1Rp1/1k1r4/1rQB4 b - - 0 1 illegal: No possible last move
6n1/3r4/p2bQ1k1/rnpbPn2/1QR1N1B1/rq2Pr1R/1Q5r/N1B1K1BN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 dxc4 g4 f5 d4 Kf7 b4 h5 b6 f4 g5 c3 d5 h3 d6 f3 d7 h2 b7 h4 b5 c2 b6 h3 Nd2 Bd6 Nb3 Kg6 Ra4 Na6 b8Q Rh7 Qd5 Bb7 Na1 c5 e3 Bc6 b7 Qb6 d8B Rd7 Be2 Qb3 Rc4 Nc7 Be7 Nb5 Qe6+ Nf6 Bd1 Bd5 Ne2 f2+ Kf1 Kh7 Ng3 Ng8 g6+ Kg7 Ke2 f1R Bh4 Rf3 Ke1 Kh6 g7+ Kh7 Rg1 h1R Rf1 Rh2 Nh1 Nc3 Bf2 Nb5 Bd2 c1N Bg1 Ne2 Bc1 Ned4 Rf2 Nf5 Re2 Nge7 g8N Kg7 Nf6 Ng8 Rd2 Kg6 Rdd4 Ra2 Rh4 h2 Rh3 Ra5 Ne4+ Nf6 Nhg3 h1R Be2 Rh2 Nh1 Rff2 Bg4 Rf3 Qh8 Ra3 b8Q Ra5 Qe7 Ng8 Qhh4 a6 Qb6 Rha2 Qf2 R2a3 Qb2 Rf8 Qe8+ Rff7 Qeb8 Rh7 Qc6 Nc3 Qb4 Nb5 Rg3 Rh2 Rh3 Rc7 Qd7 Rb7 Qe7 Rd7 Qe6+
n3N1R1/r5pN/NrBQ2Bq/R4Kn1/1B1k1b2/4p1PP/3n2bR/4nQnb b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g3 b5 axb5 f5 exf5 h4 Qf3 h3 Qg2 hxg2 Ke2 Kf7 Kf3 Kf6 Kf4 a5 c4 d5 b4 e6 h3 d3 b6 d4 c5 a4 b5 d2 b7 d1N c6 d3 c7 d2 b6 a3 Nf3 g1N Bg2 a2 Na3 Nc3 Nb5 d1B Rh2 Rh6 Ng5 Na6 b8Q Bf3 b7 Ra7 Ba3 Nb1 Bb4 Nd2 Nd6 Qe8 Bh1 Bg2 f3 Bd7 c8B e5+ Kg4 e4 f4 e3 Nh7+ Ke7 Kg5 Nc7 f6+ Ke6 f5+ Kd5 f7 Kd4 f6 Qe6 Ne8 Bd6 f8R Na8 f7 Nf6 Rg8 Bdc6 f8Q Bcd5 Bd7 Bc7 Qd6 Nfe4+ Kf4 Qg6 Bc6 Ng5 Qc8 Qh5 b8N Rg6 Qb7 Qh6 Na6 Bb8 Qb5 Bc7 Re1 a1N Qf1 Nc2 Ra1 Ne1 Kf5 Re6 Ra5 Rg6 Qe7 Bdf3 Be4 Rb6 Bc6 Bf4 Qd6+ Bd5 Qf2 Bf1 Be4 Bg2 Qf1 Bh1 Bf3 Bg2 Bh5 Bh1 Bg6 Bg2 Qf8 Bh1 Qe7 Bdg2 Qd6+
3NQnKB/R2bp1QN/B1r4b/5P2/B3rRq1/2Q1n1rR/n1Pp2n1/2k3n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 b4 d5+ Kc5 a5 b6 d3 g4 h3 g5 h5 b5 h4 g6 a4 g7 a3 f6 d4 f5 a2 b7 h2 f7 h3 b6 Ra6 Nd2+ Ke3 Ba3 Nd7+ Kd5 Nh6 Ke6 Rg8 b8R Ng4 Rc1 a1N Rb1 Nb3 Ra8 Nc1 Bb2 Na2 Ra7 Qc7 Ndf3 Qf4 Ne5 Qe4 Qf3+ Kd2 Ba3 Qe2 Rb2 Kc1 Qc6 Qf3 b7 Qg3 b8Q Qh4 Qcd6 Rc6 Ngf3 Qg3 Ng5 Qf4 Rg1 h1N Nh7 h2 Rg3 Nhf2 Bc5 h1R Rb4 Nh3 Be2 d2 Ba6 d3 Bd4 d1N Ba1 Rc7 Qc6 Qf3 Rf4 d2 Qc5 Rg1 Nc6 Re1+ Qe5 Ng1 Rh3 Re4 Qb3 Ngf2 Nd8 Nd3 Bd4 Ne1 Qc3 Rh8 g8B Bh6 f8Q Ne3 Kf7 Rc6 Qf6 N1g2 Qe8 Nf8 Qg5 Bd7 Qg3 Bg5 Kg7 Qd1 Bb3 Rg8+ Kf7 Qf3 Ba4 Bh6 Bh8 Qe2 Qg6 Qf3 Qgf6 Rg3 Qg7 Qg4 Kg8
1B1b2b1/1nBP4/4q3/1Q2b1br/2Rp2N1/NrR1NbpQ/K1P1B1r1/2knR3 b - - 0 1 illegal: No proof kernel
N2Nr2k/rrpb1P1B/4Q1r1/b3P1R1/r3Q1Kn/2Bq4/2RQp3/RnN1b3 b - - 0 1 illegal: No proof kernel
b1r1QR2/P2p1bQn/2nR1QN1/2B1b2N/B1RP4/bn1r2kp/1B2K3/qb6 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 cxb5 axb4 f4 Kf7 g4 Kf6 d4 e5 a4 c5 b6 h5 a5 b3 b7 b2 a6 h3 a7 h2 Nc3 b1B Nce2 h4 Nf3 c4 Ra4 c3 Bb2 c2 Rc4 e4 Ne5 c1N Ng6 Nc6 b8Q e3 Qa4 Ba3 Qa6 Nb3 g5+ Kf7 f6 Ke6 f7 Kf5 f8R+ Kg4 f5 Nf6 Qab6 Nh7 f6 Bb7 Nef4 e2 f7 Kg3 Bg2 Qe7 Qe8 Rc8 Qbd8 Qe3 Qf6 Ba8 Be4 Rg8 Bc2 h3 Rf1 h1B Rf2 Na1 Ba4 Bd5 Rf1 Qg1 Kd2 e1B+ Ke2 Bd2 Rfc1 Nb4 Rc6 Be3 Rd6 Nc6 Rc4 Rg7 Nh4 Nb3 g6 Rg8 g7 Bd2 Nhg6 Ba5 Ng2 Bc7 N2f4 Be6 Rd5 Be5 Rd6 Rh8 g8Q Qh1 Qgg7 Rg8 Qh8 Rg7 Rg8 Qc1 f8B Bf7 Be7 Qh1 Rf8 Rg8 Rd5 Qg1 Bc5 Qc1 Rd6 Qc3 Bc1 Qa1 Bb2 Rg7 Ne7 Rg4 Neg6 Rg5 Qhg7 Rf5 Ng2 Rf3 N2f4 Rd3 Nh5+
R1RK2n1/p1P2r1b/2r1Q3/1bqn3r/P1R2B1Q/2kb4/Qrpr1NB1/1B5N b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 h4 g5 c3 gxh4 Be2 c4 Bd3 Bg7 Bf1 Be5 Bd2 Bd6 Bc1 Bc5 dxc5 b4 Qd5 bxc3 Qd4 Qa5 Qd1 Qd8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 h5 b4 d5 a4 h3 g4 h4 f4+ Ke4 c6 e5+ f6 h2 b5 h3 b6 d4 c7 d3 f5 Kd4 b7 c2 Nd2 e4 Ne2+ Ke3 Bg2 c3 Qe1 Nc6 b8Q Ba6 Qb4 Qd5 f7 Bb5 f8R Nce7 Rc8 Qc5 Rg1 Nd5 f6 h1B f7 h2 f8Q Rh7 Qf7 Rb8 Qb1 Rb7 Qe6 Rf7 Ng3+ Kd4 Qa2 e3 Nde4 e2 Bf4 c1R Nf2 d2 Kg6 d1B g5 Rc2 Rc1 Rd2 Rf1 Rb6 Ra8 Rc6 Rc2 Rg7+ Kf5 Re7 g6 Rf7+ Kg5 Bd3 g7 Bb5 Rc1 Bc2 Rg1 Bh7 Rc2 Nge7 g8B Bhd3 Bh7 Ng8 Qeb1 e1R Qb4+ Qc4 Qbe7 Qc5 Bf5 Rf1 Kg6 Rb1 Qh4 Rb2 Re1 Rh7 Re5 Rh5 Kf7 Rh7+ Ke8 Rf7 Bg4 Bh7 Bf5 Bd3 Kd8 Bb5 Bf1 Be4 Bg2 h1R Bg6 Rh3 Ngh1 Bed3 Rc1 Bdc4 Bb1 Bcd3 Rg5 Rh2 Rg4 c2 Re1 Kc3 Re4 Ba6 Rb4 Rh3 Rbb8 Bab5 Rc8 Re3 Bg5 Re5 Rd4 Ref5 Bf4 Rh5 Rc4+
3B1QkB/K1nrb2b/1RNb4/1Nn1Rp2/P1n4N/P1Qr4/2r4p/1Q1B1q1n b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 b3 e6 bxa4 exf5 Rh3 f4 Rh2 Ra5 Rh1 Ra8 Kf2 h5 e4 b5 d4 c5 g4 c4 g5 f3 Ke3 b4 g6 c3 e5 c2 e6 b3 e7 f2 g7 b2 d6 h3 d5 h4 Kd4 h2 Kc5 h3 a3 Na6+ Kb5 Nf6 g8N Ra7 Nf3 Ne4 Nc3 b1R+ Bb2 c1B Nh4 Bf4 Be2 Nec5 Re1 Rc1 Rb1 Nc7+ Kb6 h1N Nb5 f1N Be5 f5 d7+ Kf7 d6 h2 Bd4 Rh5 Bh8 Rc2 Qd3 Qe8 d8B Nd2 d7 Bd6 Qc3 Rh7 Bd1 Nc4+ Kc6 Rg7 Re5 Rg3 Rb3 Rd3 Rb1 Nd2 Kb6 Bb7 Rb2 Bd5 Rb3 Ra8 Rb2 Rc8 Ka7 Nc4 Nf6 Rcd2 Ng4 Kg8 Rb3 Qg6 e8Q Qh7 Qh5 Bfe7 Qh6 Rc2 Qc1 Qh6 Qb1 Qc1 Re6 Qf4 Ne5 Qf1 Nc6 Rb8 Re4 Bf7 Re5 Bg6 Nbd4 Bh7 Rb6 Rc8 Nb5 Bf8 Bdf6 Bfe7 Bg5 Rf8 Bgf6 Rf7 d8Q+ Bf8 Qe8 Rd7 Bd8 Be7 Qh5 Bd6 Qh6 Bfe7 Qf8+
kQ1r1nB1/1n3Q1R/K5PB/b1BPb3/b2RN3/Qn2rqR1/pp5n/4rN2 b - - 0 1 illegal: No proof kernel
5b2/4q2n/Pp3NK1/rP2BRN1/r1nr3k/4QQR1/B2bb1p1/QN1B2nr b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 exf4 c4 d5 cxd5 Ra6 b5 Ra7 Qa4 Ra8 Qb4 axb4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 h4+ Kg4 a4 c5 d4 g5 d6 c4 d7 b6 d5 b3 h6 f6 a5 f3 h5 f2 h7 c3 d6 c2 h6 b2 a6 Bg7 Nh3 Ra7 Bf4 c1B Be5 Nc6 Ra3 Bf8 Rg3+ Kh4 Kf5 g4 e4 Nd4+ Kg6 f5 Bc4 f1N Ba2 Nd2 Rf1 f4 Nf2 Qe7 d8Q f3 d7 Nf6 Qe8 Nc4 d8Q Bd2 Qd5 Ne2 Qd3 Rb7 Qc6 Rd7 Qe3 Ng1 Qd5 Bg7 Qf7 Rhd8 h8Q Rd4 h7 Bf8 Qhg7 Bd7 h8N Nh7 Qf5 Bc8 Nf7 Be6 Ng5 Bg8 Nd3 f2 Qff3 Bd5 Nc5 Be6 Na3 b1R Nd7 Ra1 Nb1 Rc8 Nf6 Rcd8 Bb3 Ra5 Bd1 R8d7 Bc7 R7d6 e5 Rf4 Bb8 Rdd4 Bd6 Bd7 e6 Bc6 Be5 Bd5 Qg2 Bf3 Qh8 Be2 Qgf3 Qd7 e7 Qb7 e8B Qe7 Re1 f1R Bf7 Rfe4 Rg2 g3 Bd5 Na3 Ba2 Nc4 Qg7 Nh3 Qh8 Rh1 Rf1 Rg4 Qfe4 Ng1 Rf5 Rd3 Q4f3 Rgd4 Qg8 Rda3 Qgd5 R3a4 Qc5 Nb2 Qcc3 Nc4 Qa1 Qc5 Qf1 Qc7 Rgf2 g2 R2f3 Qd8 Rg3 Qe7 Qff3
3nQn1R/2BNr2p/5QBp/PRr3Q1/1b1n3N/Pb3q2/nK1B4/1N1b1r1k b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 bxa5 Bd6 h4 Be7 h5 Bf8 h6 gxh6 e4 Kd7 d4 Kd6 Kd2 b5 Kc2 c5 g4 f5 a3 b4 g5 b3+ Kb2 c4 g6 f3 g7 f4 Kc3 f2 Rh4 b2 Nf3 Be6 Nfd2 f3 Qc2 Ne7 g8N Nd7 Rh5 Nc6 Bg2 f1B Ra2 f2 Nf6 Ra7 Nf3 Qa8 Bd2 Be2 Nh4 f1R Qc1 Nd8 Re5 Bg8 Re8 Bd1 Bh3 Be7 Bf5 Nf8 Nd7 Rc7 Bg6 Rc5 Be1 Be6 Qg5 Rg8 Bd2 Rg7 Kb4 c3 e5+ Kc7 d6+ Kc6 Ra1 Beb3 e6 c2 Qf6 c1N d5+ Kb7 Ra2 Ne2 Ra1 Nd4 Qg5 Bf6 e7 Be5 Ra2 Bg3 Ra1 Be1 Ra2 Nfe6 Rh8 Nf8 e8Q Re7 Nc3 b1N Rb2 Rf3 Nb6 Rf1 d7 Kc7 d6+ Kc6 Be3 Nd2 Nb1 Ne4+ Bd2 Qb7 Qf7 Nc3 Qff6 Nd8e6 d8Q Qa8 Qb8 Nd8 Qf7 Qb7 d7 Qa8 Qbf4 Qb7 Q4f5 Kd6 Qe8 Qf3 Nc4+ Kc6 Ne5+ Kd5 Qff6 Bc4 Bh5 Ke4 Rb3 Na2+ Ka4 Nd8e6 d8B Bd5 Bc7 Nd8 Nd7 Bg8 Be3 Bb4 Bg6+ Qf5 Ng2 Kf3 Bd2+ Kf2 Nh4 Qf3 Qgf5 Kg1 Q5g5+ Kh1 Bc2 Bc3 Rb5 N4e6 Kb3 Bb4+ Kb2 Nd4 Be4 Bgb3 Bg6
QB1n4/Nb2b1pr/1Rbq2B1/3Q1K2/2BrRn1k/rbQ3P1/n1P2Np1/3R4 b - - 0 1 illegal: No possible last move, all moves rejected
1rRbkN1b/r1n2P1n/NppbBB1P/1R3q2/2n2R2/3B4/b3N1r1/3K2QQ b - - 0 1 illegal: No possible last move, all moves rejected
3b4/1bNQ1p1p/n2Q4/3PK1nN/1NbP1R2/n1R1B2q/1B1rr3/Qr1B1kn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 a5 b4 c5 g5 f3 g6 f2 b6 a4 b5 a3 b7 h3 b6 h2 g7 a2 Nc3 Be7 Ke5 Qd7 Bb2 Na6 b8Q Qh3 b7 Bd8 Qd6 Nf6 b8B Ne4 g8Q Bb7 Rc1 a1N Qe8 Nc2 Qed7 Ng5 Na2 Rf8 Bg2 f1B e4 Be2 Qf1 Kd3 Bf3 c4 Nb4+ Ke3 Bg4 Na3 Rc3+ Bd3 Qd1 Kf2 Ne2 Ra7 Re1 h1R Ng3 Ra8 Qa1 Re8+ Q7e6 Re7 Nh5 Ra7 Re3 Rb1 Bd1 Kf1 Rg3 Ra8 Rg4 Be2 Rd3 c3 Rf4+ Qf3 Qd7 c2 Rc3 c1N Bd6 Re8 Bf8 Bc4 Bh6 Ne2 Qee7 Ne6 Qed6 Ng1 Rg4 Bc6 Be3 Bb7 Rf4 Re7 Kf6 Rb8 e5 Ng5 e6 Re8+ Ke5 Rc8 Rh4 Qh3 e7 Rc6 Qc5 Rf6 Qcd6 Rf2 Rg4 Rd2 Re4 Rg8 e8N Rg6 Rg4 Rf6 Rh4 Rff2 Nc7 Rfe2 Rf4+
1b1n2rn/3pR1RB/2Nn3p/2Q4N/PP1brR1B/1KBQ4/2rQn3/1b4kq b - - 0 1 illegal: No proof kernel
1qB3n1/nNRb2kP/1qQp2Rp/r1P2Q1K/BQ6/q5r1/1B6/qq3NbN b - - 0 1 illegal: No proof kernel
1K3bB1/n1QR2np/rN4B1/Q1NrqpqP/4Q3/2R3k1/2q2qPq/2Bb2R1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 h4 Ke6 c4 Ke5 d4+ Kf5 h5 a5 c6 e5 c5 a4 b6 a3 d5 f3 Ke3 Kg4 d6 f6 c7 a2 d7 Bb7 c8R Bc6 b7 Kg3 Qa4 f2 Bd3 f1Q Nc3 Qf5 Nh3 Ra6 Nf4 Nh6 Nfd5 Qh3 Qb4 Qh2 Nb6 Ba4 c6 Bd1 c7 Nc6 b8Q Na7 Nca4 Qe7 Rb1 a1Q d8Q Qb2 Rg1 Qc2 Nc5 Rg8 Qa5 Rg5 Qe8 Qg7 Rd8 Qg6 c8B Rf5 Ne6 Qg5+ Nf4 Nf7 Qc7 Nd6 Qg6 Ne8 Rb3 Ng7 Be6 Qc6 Bg8 Qa4 Kd2 e3+ Kc3 e4 Rd7 e2 Ne6+ Re5 Nc5 e3 Ra3 Qc2+ Kd4 e1Q Rc3 e2 Qe8 Qf1 Bg6+ Qf3 Kc4 e1Q Qe7 f5 Qe6 Nc8 Kb5 Qfe3 Kc6 Na7+ Kb7 Qef2 Rd6 Rd5 Kb8 Qff4 Qe4 Qe5 Rd7 Qf3 Be3 Qff2 Bc1+
k1q1Q2K/B1p2b2/1RQ4Q/b5b1/1nP4b/1p3rnB/1r1qP1NR/1BbN3N b - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 h5 dxe5 f5 g4 hxg4 Qd4 g3 Qg4 fxg4 Kd2 d5 Kc3 Kd7 Kd4 Kc6 a4 b5 c4 Kb7 f4 g5 h4 b4 f5 g2 h5 b3 h6 g3 h7 g4 a6+ Ka7 f6 Ba3 f7 Ne7 f8Q Bb4 a5 Ba3 e6 Nf5+ Ke5 d4 e7 d3 Kf6 d2 Rh2 d1Q Nc3 Q1d2 Qh6 Nc6 Nh3 g1B Nf2 g2 Ncd1 g3 Nh1 Bf2 Kf7 g1B e8Q Bb7 Bh3 g2 Bb2 Bh4 Bd4+ Kb8 Be3 Ng3 Kg7 Rf8 h8N Rf2 Ng6 Rf3 Nf4 Qc8 Kh8 Nb4 Bc5 Bd5 a7+ Kb7 Bd4 Bf2 Bb6 g1B Ng2 Bc1 Ra4 Na6 Rb4 Bf7 Rb5 Be3 Rb4 Rb8 Rb5 Nb4 a8B+ Ka6 Bd5 Ra8 Be4 Beg5 Ba7+ Bb6 Bg6 Kb7 Bb1 Rb8 a6+ Ka8 Nde3 Rb7 Nd1 Ba5 Rb6 Rb8 Re6 Rb5 Rb6 Rd5 Rb7 Qe1 Bb8 Rd2 Rb5 Rb2 a7 Qd2 Rd5 Kb7 Rd6 Qd3 Rf6 Qd6 a8Q+ Kb6 Qd5 Ka6 Qe6 Kb7 Ba7 Ka8 Qd7 Qd5 Rb6 Qd2 Qdc6+
RB1b1qq1/1Kp4Q/1nN2N2/kbpRr1N1/q2PBP2/q2Q4/1R2rB2/1n3q2 b - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 c4 gxh4 a4 d6 c5 dxc5 axb5 Bh6 Qg4 Bg7 Qd1 Bf8 Ke2 Kd7 Kf3 a5 Ke4 e5 Kd5 h5 g4 h3 b4 e4 f4 h4 d4 e3 g5 h2 f6 e2 g6 e1Q g7 h3 b6 a4 b7 a3 b5 a2 f7 Be7 f8Q Qb4 b6 Rh5+ Ke4 Kc6 Qf5 Qa4 Bg2 Kb5 Qd3+ Ka5 Be3 Bd7 Kd5 Qf8 Bf2 Bd8 Nc3 Bb5 Nf3 Nd7 b8R Ra6 b7 Re6 Rhe1 h1Q Ng5 h2 Re5 Qf1 Qh7 h1Q Be4 Qhg1 Rb1 a1Q Rb2 Q1a3 Ra8+ Ra6 b8B Nb6+ Ke6 Ra7 Rd5 Ne7 g8N Ra6 Nf6 Rh2 Be1 Re2 Bf2 Qgg2 Nh3 Qg6 Ng5 Qgg8+ Ke5 Bc6 Nb5 Bd7 Rd6 Ned5 Na7 Nc3 Rd5 Bb5 Rd7 Nc8 Rd6 Nb1 Rd7 Re6+ Kd5 Qc2 Rd6 Ba6 Kc6 Re5 Rd7 Nb6 Rd5 Bb5+ Kb7 Qca4 Nc6#
3KnN2/bP1b3N/1R4BB/2B2bP1/qb1rRp2/1bn4k/1R1qQ2p/Q1N2r2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 h5 g4 a5 d4 a4 e5 c4 e6+ Kd6 b6 h3 b7 h4 b5 a3 b6 a2 e7 h2 e8Q h3 Ne2 c3 Nd2 c2 Rb1 a1Q Rb2 Na6 b8R Qa4 b7 Bd7 Ne4+ Kc7 Bg2 Bb4 Nf6 Kd6 Nh7 Nc7 Qe3 Qg5 Re8 Rd8 Re4 Ne8 Bd2 Ne7 Nc1 Rg8 Qee2 Rf8 Re1 h1B Be3 Kc7 d6+ Kc6 Bd2 h2 d5+ Kc5 Re6 Kd4 Rh6 Rf6 Be3+ Ke5 Rg6 Bb5 d7 Rf7 d6 Nd5 Rh6 Nc3 Rf6 Bc4 Rg6 Bb3 Rh6 Rc8 d8N Rc4 d7 Rd4 Ne6 Rf6 d8B Rf7 Na2 c1B Nef8 Rf6 Bf2+ Be3 Qa1 Rd2 Qb1 Re6 Be7 Qh4 Rg6 Red6 g5 Rd1 Qa6 R6d5 Rg1 Ba7 Bfc5 R5d4 Rb6 Qe1 Nc1 Qd2 Ne6 Re1 Bf8 Rd1 Ne2 Rc1 Bh6 Re1 Kf2 f3 Kg3 f2 Nc1 f1B Qa1 f4+ Kg4 Bd5 Be4 Bb3 Bg6 Bb5 Nef8 Be4 Rg3 Bbc6 Re3 Rf1 Qe2 Bd7+ Bf5 Qd1 Kh5 Qd2 Kg6 Rd5 Kf7 Rd6+ Be6 Rd4 Bd5 Kf5 Ke7 Bb1 Kd8 Bd3 Bf7 Bdc2 Qf2 Kg4 Bg6 Bcf5 Re4 Kh3 Qe2
1r1R3B/3Q2q1/3r2N1/4nq1Q/2n3P1/Nb1P1pR1/1pRb1BBk/1Kn2bNn b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 a4 Kd7 g4 Kd6 e4 Ke5 d6 f5 a5 h5 g6 c5 g7 b5 d7 b3 a6 f3 a7 Kf4 e5 Kg3 e6 b4 e7 f4 e8Q f2+ Ke2 h4 Kd3 c4+ Ke4 b2 Qg6 f3 Qh7 b3 Qe2 h3 Qf5 h2 Na3 b1Q+ Qd3 b2 Qb5 c3 Qh5 c2 Bh3 f1B Bg2 Nh6 g8N Nf5 Ne7 Rh6 Ng6 Qf6 d8B Ne3 Qd7 Qg7 Bf6 Nc6 Bd4 Rb8 a8R Bb4 d3 Nc4 Bce3 Qa2 Rc1 Bd2 Bc3 N6e5 Kd4 Rb4 Rb8 Bb7 Rd8 Bd5 Nh3 Qa1 Rg1 h1N Bf2+ Kh2 Re1 c1N Re2 Be1 Rd2 Rb8 Rc2 Nd6 Ke3 Bb3 Bd4 Ba5 Bc3 Bb4 Kd2 Ndc4+ Kd1 Qf7 Bcd4 Bd2 Bc3 Qf5 Bcd4 Nf7 Bh8 Nfe5 Qe6 Ra8 Nb5 Qf6 Ngf4 Qh4 Qd7 Ng3 Bh1 Qa5 Na3 Re6 Qhe8 Qc3 Qh5 Qf6 Ng6 Qg7 Qf7 Qd4 Qd7 Ba2 Rc3 Qe4 Kc2 Bb3+ Kb1 Qf5 Rc2 Rd6 Bb6 Ne4 Rg3 Nf2 Bg2 Nh1 Bf2 Rb8 Ng1+
k1nn2Kb/b7/nB3R1R/1B4p1/1NrQ2P1/b1q1N1P1/r1p3Nq/1Q2b1RB b - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 fxe4 c4 d5 h3 Bg4 hxg4 dxc4 Ke2 Kd7 Ke3 Kc6 Kf4 g5+ Ke5 h5 Ke6 b5 Kf7 Kb7 a4 c5 d4 e5 f4 c3 g3 e3 d5 h4 f5 c2 d6 e4 d7 e2 f6 e1B Qd5+ Nc6 Qa2 e3 Nd2 b4 Qb2 h3 Bb5 b3 Rh2 e2 Qc3 b2 Qb3 b1N Nc4 Bf2 Nf3 e1B Ne3 c4 Nh4 c3 Nhg2 Na3 Qb1 Qc8 d8Q Bg7 Qd4 Nge7 a6+ Kb8 Bd2 c1B a5 c2 a7+ Kb7 Rh1 h2 Rg1 h1Q a6+ Kc7 Bb4 Qh2 Bc5 Rh6 Ra2 Bh8 Rb2 Nd8+ Kf8 Bcd2 f7 Bc1 Rb4 Rc6 Rb3 Nf5 Kg8 Nd6 f8R Bb2 Rf6 Bc1 Be2 Nab5 Rc3 Ba3 Bb6+ Kd7 Rc5 Nc7 Re5 Rc4 Ree6 Kc6 Rh6 Rb8 a8B+ Rb7 a7 Na6 Ref6 Qc7 Bc5 Qa5 Bf1 Qc3 Be2 Kc7 Bb6+ Kc8 Bf1 Rb8 Bc6 Ra8 Bb5 Kb7 Bd3 Rb8 a8N Nc8 Nc7 Ra8 Ncd5 Ra7 Nb4 Ka8 Ned5 Nb8 Be4 Ra5 Nge3 Na6 Bh1 Ra4 Ng2 Be3 Qf4 Bc5 Nde3 Ra5 Bc7 Ba7 Qd4 Bb2 Ned5 Ra2 Bb6 Ba3 Nde3
BqR2nq1/3NN2b/1b1r2k1/Q1R1K1p1/rPrQ4/p1P2B2/qq1n3B/1NR5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 Kf3 a5 Ke4 f5+ Kd5 Kf7 b4 a4 h4 a3 e4 f3 b6 d3 h6 d2 c3 f4 h7 f2 e5 f3 b7 Ra4 e6+ Kg6 e7 Nf6+ Kd4 d5 Nh3 Nbd7 b8N Ne4 Bg2 f1Q Qb3 f2 Bf3 Qa6 Rd1 Qe6 e8B+ Qf7 Qc4 f1Q Qb5 Qg2 Qa5 Ba6 Rf1 d1Q+ Bd2 Bd3 Bf4 Qde2 Bh2 Rg8 h8Q Qb2 Rd1 Nd2 h5+ Kf5 h6 Kg6 h7 Be7 Bd6 Nf8 Ke5 d4 Nd7 Qb8 Ba8 Bd8 Nf4+ Kh6 Rc1 Bb6 Nd5 Kg6 Rf1 Bc2 Rf5 d3 Bc7 Nb3 Bd6 d2 Bc7 d1R Ne7+ Kh5 Qf6 Rd6 Qg7 Nd2 h8R+ Rh6 Qf6 Rg6 Qd6 Qg8 Qd4 Qf2 Bf7 Bd3 Ba2 Rc6 Bd5 Rc4 Bg2 Nh7 Bgd5 Rd6 Bf3+ Kh6 Rf8 Kg7 Rc8 Nf8 Rh6 Bh7 Rf6 Rdc6 Rd6 Qa2 Rd5 Rd6 Rb5 Nb3 Rc5 Qfb2 Nd2 Kf7 Re1 Kg7 Nb1 Nd2 Rc1 Re6+ Kd5+ Kh6 Bf4 Rd6+ Ke5 Kg7 Bh2 Kf7 Nd5 Kg6 Ne7+
nBQnBQ2/r3r2B/n2RbqN1/4p2K/q1b3pQ/1N1b1k1P/1R2P3/1N3n2 b - - 0 1 illegal: Other
3bB3/R2K2n1/1qR2Q2/3p2q1/2n2nQp/4nPr1/N1Qr1P1B/k1r1BbRN b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Nh3 cxd4 Ng1 f5 Nf3 f4 Ng1 f3 exf3 Bb7 Nd2 Ba6 Nb1 Bc8 Ke2 Kf7 Kd3 Ke6 Ke4 h5 g4 d5+ Kf4 a5 c4 d3 b4 a4 g5 h3 c5 a3 g6 h4 c6 h2 b6 d2 b5 a2 b7 Nh6 b6 Nd7 b8B Nf5 b7 Rg8 g7 Nb6 c7 Nc4 Kg5 Ke5 Na3 Kd4 Ba7+ Kc3 b8Q e5+ Kg6 e4 Kf7 e3 Qb6 e2 Nc2 e1N Nb4 Nd3 Bb8 Qg5 Ke8 Ba6 c8R Be7+ Kd7 Nf4 Rc6 Bd8 Qe2 d1R Bd2+ Kb2 Be1+ Rd2 Qe4 Bb5 Ne2 Ra3 Qd3 Rc3 Ng3 Rc1 Rg1 h1Q Bd6 Qg2 Nh1 Qf6 Be2 Qgg5 Bd1 Qd4 Ba4 Qc5 Qa6 Qb6 Qe4 Na3 Bc7 Bf1 Bb5 Nc4 Ba4 Rh8 g8Q Ng7 Qge6 Rg8 Qg4 Nfh5 Bg3 Nf4 Bh2 Rcd1 Rc1 a1N Na2 Nc2 Ra1 Rc1 Qef5 N2e3 Qc8 Qc5 Qf6+ Qd4 Nc3 Qc5 Bb5 Qd4 Ra7 Qb6 Na2+ Kb1 Qff5+ Ka1 Qc2 Be7 Qf8 Bd8 Qf6+ Nb2 Rcc7 Qh5 Kc8 Ngf5 Qh3 Rg3 Be8 Ng7 Rc6 Qg6 Kd7 Qg5 Qe7 Nbc4 Qg4 Qa5 Qee6 Qb6 Qf6+
2r2b1R/2Q1Q1B1/4K3/B2pP2n/Qq1P2R1/qqpB1r2/b4k1N/bN1n2Rq b - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 b5 gxh5 Nc6 Kf2 Nb4 a5 Nc2 a6 Bxa6 cxb5 Bc8 Kf3 Ke7 Kg4 Kf6 h4 Ke5 d4+ Ke4 b4 g5 h6 f5+ Kh3 a5 e3 c5 h5 c4 b6 c3 b5 a4 h7 a3 h6 a2 b7 g4+ Kg2 g3 Kh3 g2 b8R f3 b6 f4 Kg4 f2 b7 f3 Bb2 Nf6+ Kg5 Qb6 Ba3 Qb3 Bb4 Nh5 Ba5 d5 Rh3 Bf5 Rg3 Qa3 Rd8 Rc8 b8Q Bg6 Bc4 f1Q Qc7 f2 Nf3 g1Q Nh2 Qh1 Rg2 Rg8 h8Q Qfg1 h7 f1Q Ba6 Qc4 Qf6 Qcb4 h8B Rg7 Bf1 Rf7 Bg7 Qf2 Qfd6 Rf3 Qdd7 Qe1 Qe2 Qab3 Qa4 Qc1 Qe1 Qca3 Rg4+ Nf4 Kf6 Bh7 Rg1 Nh5+ Ke6 Bg6 Bg2 Kd3 e4 Ne3 e5 Be4 Qh4 Ke2 Qhe7 Nd1 Bf1+ Kf2 Rg4 Bd3 Re8 Bc4 Bd3 Ke1 Nd2 Kf2 Rc1 a1B Nb1 Qbb2 Rd8 Ba2 Re8 Q2b3 Rd8 Nb2 Rcg1 Nd1 Bf6 Bh6 Rh8 Bf8 Bg7
q3N1k1/2b3NR/rn6/1BnpPrpB/q2bQ3/2QRq2P/N3b2K/1R2b1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 g5 Kg2 f5 b4 Kf7 e4 a5 c4 d5 b6 f4 c5 d3 c6 g3 b7 d2 c7 a4 b5 a3 b6 a2 e6+ Kg7 e7 Bg4 c8B Ra6 e5 Nf6 e8N+ Kg8 Qe2 d1Q Qe4 Bd6 Nh3 Nbd7 b8R Be2 b7 Bc7 Be3 Nb6 Bg1 Qa4 Nc3 Nfd7 Rd1 a1B Na2 Nc5 Rd3 Bc3 Bg4 Be1 Bh5 Rh7 Rc8 Rg7 b8Q Rf7 Qb7 Rf8 Qc6 Rf5 Rb8 Qc8 Rb7 Qa8 Ra7 Nb7 Qc3 Nc5 Bf2 f3+ Kg1 g2 Nf4 Bd1 h3 Be2 Bd4 f2+ Kh2 Q8c6 Ne6 Qa8 N6g7 g1B+ Kg3 Bd1 Bfe2 f1Q+ Bf2 Bd2 Bd4 Qe1+ Kg2 Bge3 Kh2 Bf2 Bf1 Qe3 Rb7 Bf3 Be2 Bg4 Rb1 Bfe1 Bf1 Be2 Ra7 Qf3 Bf2 Be3 Bg1 Bd4 Ne6 Bd6 Rh7 Bc7 N6g7 Qe3 Rdd1 Bg4 Bb5 Be2 Rd3
1n4Bb/2K4Q/3Rb1R1/R1PBk2P/q6Q/N1pr2n1/2nr1BpN/1rqr1Q2 b - - 0 1 illegal: No proof kernel
q7/1BbN1RQ1/RNN2q1Q/QP1k2n1/r4Pb1/1Kp1B2b/p3nr2/4nB1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 Kd2 Kd6 Kc2 c5 f4 a5 b6 h5 b4 e5 g4 h3 b7 h4 b5 h2 g5 h3 g6 a4 g7 a3 Bd3 e3 Bf1 a2 Qg4 e2 Kb3 e4 Nd2 Ra4 Ngf3 e3 Ne5 Nh6 g8B Nc6 b8N Nf7 Rg1 h1B Ndc4+ Ke7 Bd2 h2 d6+ Kf6 Qg3 Bf3 Rc1 h1N d5 e1Q d7 e2 d6 Ke6 Qg7 Rh2 Be3 Qeh4 Rg2 Qe8 d8Q e1N d7 Bd6 Qb6 Bh5 Rd2 Rf2 d8Q Bf3 Qdg5 Bc7 Q5h6+ Qf6 Rd7 Be2 Bh7 Ng5 Be4 Qd8 Qa5 Nd4+ Kb2 Qe8 Rf7 Bh5+ Rc2 Ne2 Kb3 Qc6 Bf3 Qa8 Bb7 Bf3 Rc1 Bg2 Rd1 Bh3 Rd6+ Kf5 Rc6 Ke4 Na6 Kd5 Nb8 Bce6 Ned7 Beg4 Ra6+ Qc6 Bc8 Qf6 Nc6 Qe7 Bb7 Qf6 N4e5 c4+ Kb2 c3+ Kb3 Nc2 Nc4 Ne1 Ncb6+
1BN1nnR1/1Qb1qkrB/8/qp2pQB1/P5P1/2Nb2KR/4Q1N1/1b1q1q1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 e5 Kf2 c5 g4 h5 d4 b5 f6 h3 d6 b3 f5 h4 f7+ Kd7 d5 b2 f6 h2 Bg5 c4 Bd3 h3 Nf3 c3 Nh4 c2 Qe2 c1Q Nc3 b1B Kg3 Be7 f8Q Qa3 f7 Nf6 Qg7 Ra7 f8Q Rh7 Qff7 Qa6 Qe6+ Ke8 a3 Rh6 Bh7 Nbd7 Ra2 Bb7 Qf5 Ba8 Rd2 Qaa5 a4 Qdc7 Rd4 Bd8 Rc4 Qb7 Rc7 Nf8 Rc6 Qf7 d7+ Ke7 Ra6 Bb6 d8B+ Ke8 d6 Bae4 Bc7 Bed3 d7+ Ke7 Be3 Ne8 d8N Rh5 Nb7 Rh6 Rg1 h1Q Bb8 h2 Nd6 Rh5 Rg2 Qd1 Bf4 h1Q Rh2 Qhf1 Ng2 Rh6 Rh5 Rd7 Rg5 Rh1 Nc8+ Kd8 Be3 Qf6 Qf7 Qg7 Qd5 Bc7 Qb7 Qf6 Rg8 Rg7 Re6 Qf7 Rh6 Qf6 Nd6 Ke7 Nc8+ Kf7 Bd2 Rh4 Bg5 Rh1 Qfe4 Qd8 Rh3 Qe7 Qf5+
1Q3K1N/4Q3/bq1R4/P1R2nBN/rpn1Bbn1/Brpb3Q/2Pqb3/5N1k b - - 0 1 illegal: No possible last move
1n2Q2R/2N1N2q/2qNB1p1/1bk4b/q1r2Q2/P3R1Bp/2Pb1K1n/rB1b3R b - - 0 1 illegal: No proof kernel
rB1b4/2q2RBB/nRR3p1/2bP2n1/2rp3N/2nqkNP1/bQb4N/4KQ2 b - - 0 1 illegal: No proof kernel
R1QNq1B1/1n3Q1K/nk2prR1/2n1b3/Q2N4/qp6/2brP1qP/1B1nN2R b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h6 g6 Kd7 g7 Ra6 g5 Rh7 g6 Rh8 Bb2 Ke8 Bf6 Ra8 Bg5 hxg5 Kf2 Kd7 Ke3 c5 Ke4 Kc7 d4 f5+ Ke5 b5 a4 g4 a5 g3 a6 b3 a7 b2 d6+ Kb6 d5 g2 d7 b4 d6 f4 Kf5 c4 Qd2 c3 Qc1 b3 Nh3 g1Q Ra4 c2 Rc4 f3 Re4 f2 Rd4 Qe8 Rd5 Na6 Bg2 f1N Nf4 Nf6 g8B Nd2 g7 Nfe4 Ne6 Nec5 d8N Rh6 d7 Nc4 Na3 b1N Be4 Qg2 Qf4 c1Q Nc2 Na5 Ned4 Qa3 Ne1 Nc3 Bb1 Nab7 Re5 Rd6 Re6 Nd1 Rg6 Rc6 Qg4 Rf6+ Kg5 e6 Kh6 Bd6 Kh7 Be5 Qe4 Nd6 Qf4 Bb7 Qh4 Rc8 a8R Be4 Qg4 Bf5 Qe4 Ndb7 Qc6+ Ka5 Qa4+ Kb6 Nf7 Be4 d8Q+ Rc7 Qc8 Bc2 Nd8 Re7 Bf7 Rc7 g8Q Rd7 Qf8 Rd6 Bg8 Rd7+ Qf7 Rd6 Ndf3 Rd2 Nd4
1BR2r2/1r3b2/QnRp4/KPk1b2B/1n2RbpN/P1qB1rb1/4N3/NQ1q4 b - - 0 1 illegal: No possible last move, all moves rejected
1NRRQ2N/bQ1r3B/nPK1bb2/5Pbr/1k2n3/1pR2pN1/q1n5/1Q2B1q1 b - - 0 1 illegal: No proof kernel
q4nB1/4N2Q/RP1k2Rn/pB2Q1rn/2p1P1q1/bNKb2B1/4R3/N2r2nq b - - 0 1 illegal: No possible last move
2Q2N1B/R6q/1pqq1B1q/Nb2bQrn/2pQ2Pr/8/2PknR2/RBb2K2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 e5 d4 f5 dxe5 fxe4 g4 Kf7 f4 Ke6 a4 c5 g6 h5 a5 d5 g7 h4 a6 c4 a7 b6 Qd2 h3 Ra5 h2 Nh3 d4 Rb5 d3 Bg2 b3 Kf1 e3 Bb2 Qe7 Bc6 Nf6 g8Q+ Qf7 Qh7 Bg7 Qc3 d2 Qd4 Nh5 Rc5 Qg6 Ba4 Nc6 Ra5 Rb8 a8Q Bd7 Ra7 Rbg8 Qc8 Qh6 Rg1 h1Q f5+ Ke7 f6+ Ke6 Ba1 b2 f7 Qd5 f8B e2+ Kf2 d1Q Nd2 b1Q Be7 e1B+ Kf1 Qd6 Bf6 Qb5 Nb3 Qb1 Na5 Bd2+ Kg2 Bc1 Bb3 Qb2 Ba2 Q2b3 Re1 Qd3 Bb1 Qe4+ Kf1 Qbd5 Qg1 Nd4 Rd1 Qb5 Qf5+ Kd5 Ng5 Qbc6 Ne6 Be8 Re1 Ne2 Nf8 Rh7 Bb2 Bh8 Qe3 Rg5 Qef4 Kc5 e6+ Kb4 e7 Bd7 e8R Qee7 Bfd4 Be5 Qf2 Qeg7 Re6 Rh8 Rf6 Qgh7 Ba1 Qcc7 Bdb2 Bb5 Qg1 Qcc6 Rff7 Bh2 Bf6 Be5 Rd1 Bcb2 Re1 Kc3 Qgf2 Kd2 Rc1 Qa3 Qd4+ Qd3 Re1 Bc1 Be7 Bb8 Qfe4 Nhf4 Qdd7 Qh1+ Kf2 Qf5 Ba2 Bb2 Qee6 Qh4+ Kf1 Qdd5 Rb1 Bc1 Bb2 Rh6 Bh8 Qh7 Ra1 Be5 Bb1 Qh5 Qdd6 Q5g6 Rf5 Rh4 Bef6 Nh5 Rf2 Qgh6 Qf5 Qd3 Qc5 Qdd6 Qd4+
b1k1r1B1/K3Brr1/1p2P1Q1/1qR1Q3/n1bN1B2/R4Nr1/1R1pP3/N2n2bq b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 f5 a4 d5 c4 Kd7 h4 g5 a5 d3 Ke3 b3 Kd4 d2 a6 b2 a7 g4 h6 g3 h7 f4 h5 g2 c5 f3 h6 f2 Nf3 g1R Bg2 f1R Ra3 Qa5 Qc2 d1Q+ Nbd2 b1B Qg6 Bd3 Nb3 Na6 Na1 Ne7 Bf4 Rg8 h8Q Qb5 h7 Rg7 c6+ Kc7 Bh3 Nc5 Be6 Rg3 Bg8 Na4 e6+ Kd8 Rh3 Qe1 Ra2 Bc4 Rb2 Bd7 c7+ Kc8 Rh5 Bc6 Re5 Rb8 a8R Rf2 Ra5 Qh1 Re3 Ra8 Ra3 b6 Ke5 d4+ Kd6 Kb7 c8N d3 Na7 Be4 Nc6 d2 Ncd4 Re8 Raa2 Kc8 Ra3 Qf5 Re5 Nd5+ Kc6 Qg5 Rf5 Bc5 Re5 Ndc3+ Rd5 Rd7 Qe5 Nd1 h8B Rf1 Bf6 Rg7 Nf5 Bg1 Be7 Bb3 Kb5 Ba2 Ka6 Bc4+ Rdb5 Ba8 N5d4 Rf2 Qef6 Qc5 Ka7 Qb4 Rg5 Qb5 Rd5 Rh2 Qe5 Rhh7 Qd6 Rf7 Qe5 Rhg7 Rc5+
Bqb5/nN4k1/PpNq1p2/NqbR4/6br/Br2R3/KQQ3qP/3nR2Q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 c5 e4 g5 d4 f3 Kd2 g4 Kc2 b6 Kb3 g3 e5 c4+ Ka2 g2 h6 f2 e6 c3 e7 c2 d6 Bg4 d5 Bh3 h7 Nf6 a5 Ng4 Na3 Ne3 Nc4 Bg4 Ba3 c1Q Qc2 Nd1 Ne2 g1Q Bg2 f1Q Nd4 Qcf4 Nc6 f6 d7+ Kf7 e8R Qd3 d6 Kg7 Re3 Qdf1 Be4 Qgg2 Rg1 Qc7 d8Q Bc8 d7 Bc5 Qb2 Qcd6 Qc7 Qe2 Re1 b3+ Kb1 Qh5 Bd5 Qe8 d8N+ Qed7 Nb7 Qfe5 Qd4 b2 Ka2 Qe8 Rc1 Qd8 Rcc3 Q8f8 Rcd3 b1B+ Kb3 Ra6 Qb2 Ra8 Rd4 Bf5 Ka2 Bg4 Bf3 Qd8 Rd5 Qe8 Ncd8 Nc6 a6 Na7 Nc6 Qd8 N4a5 Rg8 Ne7 Qb5 Qc6 Qb8 Qc7 Qd6 h8Q+ Kf8 Qh4 Kg7 Qhf2 Rh8 Qfc2 Rh4 Qd7 Rh3 Qdf5 Rg3 Nec6 Rh3 Be4 Rg3 Qf1 Rf3 R3e2 Rb3 Re3 Qbc7 Ne7 Bcd7 Rd4 Rg8 Qh1 Bc8 Nd8 Rf8 Ba8 Qb8 Rd5 Rh8 Ndb7 Rh4 Nec6
2R5/r1bN1Kb1/p2q2Q1/4P2N/1kB2QQp/q1Pn2B1/1bR1R1r1/1nnb1B2 b - - 0 1 illegal: No possible last move, all moves rejected
1brqBQ2/1b2R2P/1bq1qn2/1Q1nr3/1B3N2/q1p1kRQ1/P6p/1NRK2N1 b - - 0 1 illegal: No possible last move, all moves rejected
k1bQ1bn1/2QrR2P/B1b1K1Pp/1rqp4/7n/Nq4B1/2RQNn1B/6nN b - - 0 1 illegal: No proof kernel
3qB1Nb/3Rr1np/4QN1N/1Pbr1p1q/1BrnQ1QP/n2k2KR/8/2r3R1 b - - 0 1 legal: proof: f4 b5 d4 c5 a4 cxd4 axb5 f6 g4 Bb7 g5 Bd5 g6 e5 Ra5 exf4 Ra1 Bf7 gxf7+ Ke7 Kf2 Kd6 b4 Ke5 c4 Ke4 h4 d5 e3 g5 c5 a5 b6 g4 b5 f3 b7 g3+ Ke1 a4 c6 g2 Kf2 a3 c7 a2 c8Q d3 Ba3 f5 Be2 d4 Rh3 d2 Bb4 d3 Kg3 f2 Nf3 g1B Ne5 f1R Ng4 Ra4 Nh6 Bc5 f8Q Nf6 Bh5 Nc6 b8R Nd4 Rb7 Ne8 Rd7 Ng7 Be8 Re1 Qe2 d1Q Qg8 d2 Qf3+ Kd3 e4+ Be3 e5 Rf1 Qfd5 Qh5 e6 Rc1 e7 d1R Nc3 Re1 Rb1 a1N Ne4 Nc2 Nf6 Na3 Qca8 Bd2 Qde6 Bc3 Ra1 Re5 Qb7 Rd5 Qbc6 Rc2 Rg1 Rc1 Qe4+ Kd2 Qg4 Kd3 Qge6 Rf8 Nfg8 Rf7 Ba5 Rc4 Bb4 Rf8 Bf7 Ba1 e8N Bb2 Bg6 Rf7 Nef6 Re7 Be8 Nf3 Qe5 Ne6 Qa6 Bbd4 Ne4 Ba1 Qef4 Bh8 Nef6 Ng7 Qe6 Nd4 Qfe4+
1nN3n1/qb1kr1p1/2nnRr2/1Q1KRB1N/2QbP3/1Q1p4/1B3qPN/1q3R2 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 Qd3 e5 Qg6 exf4 Qxh5 Nf6 Qh7 Ng8 Kd2 d5 Kd3 f5 b4 a5 h4 a4 c4 f3 h5 f4 c5 a3 h6 a2 c6 f2 b6 f3 c7 Qd7 b5 Ke7 b7 Nc6 b8Q Bb7 b6 Ra7 c8N+ Kd8 e4 Bc5 Be2 f1Q Rh5 f2 Bb2 Qc7 Nd2 Kd7 Re1 a1N Ndf3 Nb3 Nh3 Nba5 Re5 Qg1 Rb1 f1N Nh2 Ng3 Rf1 Nf5 Bg4 Qf2 Nf4 Ra6 Re6 Nd6 Nh5 Ra7 Qf5 Ra6 Qa8 Nb8 h7 Nac6 Qf3 Ra7 Bf5 Ra6 Qe2 Ra7 Kd2 d3 Kc3 d2 Qb5 d1Q Qc4 Ra5 Qaa6 Qb1 Qab5 d4+ Kb3 d3 Kc3 Ba8 b7 Ra7 Qbb3 Qb6 Qbb5 Bd4+ Kb3 Na6 b8Q Rc7 Qb7 Qa7 Q7b6 Nb8 Qb7 Nf6 Q7b6 Rg8 h8R Rf8 Rh6 Ng8 Re5+ Kd8 Rhe6 Bb7 Q6a5 Rf6 Qa3 Re7 Qab4 Bc5 Kc3 Kd7 Qcb3 Nf7 Kc4 Nd6+ Kd5 Bd4 Q4c4
R2n2q1/2nN2pn/1QQB1Bb1/2b1N2p/2r1qkN1/2b4K/BP2R1rP/n5Q1 b - - 0 1 legal: proof: e4 b5 g4 f5 a4 fxg4 axb5 c6 bxc6 d5 Ba6 dxe4 Bc4 Ba6 Bf1 Bc8 f4 Kf7 Kf2 Ke6 Kg3 Kf5 c4 a5 d4 e5 d5 h5 c5 a4 d6 e3 d7 e2 c7 e1Q+ Kg2 g3 c6 a3 Nh3 a2 Bb5 e4 Nd2 e3 Nc4 e2 Ne5 Nf6 Bc4 Ra4 Nf2 Na6 Nfg4 Rh6 Kh3 g2 Rf1 g1B Rf2 Bb4 Qd6 Bb7 c8Q Nh7 c7 Rg6 Qb6 Qg8 d8B+ Ke4 f5 Bc3 Bb3 Rc4 f6 Bd5 Be3 Bf7 Bc5 Rg5 Rg2 Kf4 Bd6 Bg6 f7 Bc5 f8N Qb1 Qcb7 e1N c8Q Nc2 Q7a7 Nd4 Qcc6 Ne6 Bf6 Nac7 Nfd7 Qe4 Rd2 Nd8 Re2 Ba3 Qg1 Bab4 Qab6 Bc5 Rc1 a1N Ba2 B3b4 Rc3 Ba5 Ra3 Bc3 Nf2 Rg4 Ra8 Rg2 Nfg4
1N1r2N1/QB3bp1/qNB2Rr1/3P1qB1/2n4p/3k1RPn/b3n1Q1/KbQ2b2 b - - 0 1 illegal: No proof kernel
NNN5/n3n1pb/2B1Kb2/kp2PQ2/1q2Br2/2R2P2/1bR2qrB/2RbQ2n b - - 0 1 illegal: No proof kernel
r2qQ3/3NQ1p1/PP1KB1R1/4N3/r2Bk2n/r2qpBb1/RqqRb3/3Q2n1 b - - 0 1 illegal: No proof kernel
Q1n4r/R4P2/r2bR1q1/q1Qnp3/6R1/BbPN3N/2p2Br1/kBKQ1nn1 b - - 0 1 illegal: No proof kernel
3q2Nq/4bp2/KN1P3n/Q4Q2/3RBBbQ/2bp1q2/r1P1n2B/r3RkqN b - - 0 1 illegal: No possible last move, all moves rejected
2r1q1Br/R2p2qR/R4Bnp/b1N2qnN/Q7/KPQ2qkP/n1b5/N1Q5 b - - 0 1 legal: proof: g4 b5 g5 e5 Bh3 b4 Bg2 c5 Bf1 c4 g6 c3 bxc3 b3 d4 exd4 axb3 fxg6 Be3 g5 Bc1 g4 Kd2 Ke7 f4 Ke6 e4 a5 e5 Kf5 e6 g5 e7 g3 e8R a4 c4 g4 c5 a3 c4 g2 Kc2 a2 Kb2 g3 c6 d3 c7 d2 c5 Bb7 c8Q Ra5 c6 Nh6 c7 Ng8 Ne2 Kg4 f5 g1Q f6 g2 f7 Nc6 Na3 Bb4 f8N Ra8 Nc2 Qc5 Re6 g1N Nf4+ Nf3 Bc4 Ba5 Qe2 d1Q Qe4 Qf2 Ka3 Qe8 Bb2 Nb4 Bf6 Ne7 Ra6 Ng6 N8e6 Ng5 Nc5 Qdf3 Bg8 Rb8 Qc4 Be4 Qc3 Ra8 Qb7 Bf5 Qc6 Rc8 Qa4 Bd3 h3+ Kg3 Rhe1 h6 Re7 Bf5 Rh7 Be4 Rh1 Bf5 Na1 Bc2 Rd1 Qf1 Rdd6 Q1d3 Ra7 Qf5 Rda6 Qee4 Qe1+ Kh2 Nb7 Ra8 c8Q Bd1 Bd4 Bc2 Qc1 Kg3 Qc4 Qe8 Nc5 Be4 Q4c2 Rc8 Q2b2 Bd3 Nc2 a1Q+ Qa2 Qb1 Qa1 Na2 Bg7 Qff8 Bf6 Qg7 Qc3 Bf5 Na1 Qbe4 Qf1 Qd5 Qd1 Bc2 Qc1 Qf5 Nh5+
1N1B4/K2p4/PrRq1Br1/rNp2qQQ/4q3/B1kP3N/r5b1/1Rn1b1nR b - - 0 1 legal: proof: e4 b5 c4 h5 g4 f5 exf5 a6 gxh5 Rh7 b4 Rh8 Bg2 Ra7 Bc6 bxc4 b5 Ra8 b6 Bb7 Ba4 Bc8 Bb5 axb5 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Kd5 g5 a4 b4 h4 g4 f4 g3 d3 c3 a5 g2 h6 b3 b7 c2 h5 b2 h7 e4 h6 e3 Nh3 g1R Qh5 e2 Bd2 e1Q Ra2 c1Q Nc3 b1R Nb5 Nc6 b8N Ne5 Rb2 Bb4 Nd4 Rg6 Bc3 Ra1 Rb1 Nf3 a6 Ng1 Bb2 Qde7 Ba3 Ra2 Qg4 Qh4 Qh5 Qf1 Qg5+ Kf7 f6 Bb7+ Kc4 Bg2 Kb5 Be1 f5 c5 Kb6 Qd6+ Nbc6 Rd8 Ka7 Ne7 Nb8 Rhe8 h8R Nd5 h7 Nb4 Rg8 Re4 h8Q Re6 Qhh5 Qe4 Rh8 Rc8 Rg8 Rc6 Rc8 Rb6 Rc7 Rb5 Rc6 Kg8 f7+ Kg7 f8B+ Kf7 f6 Ra5 Qhh4 Qff5 Qgh5 Ra1 Qg3 Na2 Be7 Nc1 Bd8 Ra2 Qgg5 Qf8 Rc7 Rb6 Rc8 Qd6 Rc6 Kf8 f7 Kg7 f8B+ Kf7 Ne2 Ke6 Bfe7 Kd5 Bf6 Qde5 Nef4+ Kd4 Ne6+ Kc3 Nd4 Qd6 Nb5+
rqN2Q1B/1P3b1K/2p3RB/1rrBk3/7b/P1N4n/Rqp2b2/bQ1Q2Nn b - - 0 1 illegal: No proof kernel
NnR3R1/qp1N2QB/4bB1k/1K1Rn3/rbQ3n1/4P1Pp/r2n1bN1/Bq6 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 a4 f5 d4 Kf7 Kd2 Kg6 Kd3 h5 Kc4 c5 g3 b3 d6 f3 e3 b2 d7 f2 a5 h4 a6 f4 d5 h3 d6 f3 a7 Bh6 Ne2 Qf6 d8R Qd4+ Kb5 c4 d7 c3 Qb3 c2 Qc4 Bf8 Nbc3 b1Q+ Bb2 c1B Ra5 Nf6 Ne4 Bb4 Nc5 Bcd2 Ba1 Rh4 Rg8+ Kh5 d8B Be6 g6 Nfd7 g7 Kh6 Nf4 Be1 Be2 f1N Bf6 f2 Bd3 Nh2 Bh7 f1N Ng2 Ne5 Nd7 Nd2 Rg1 Bf2 Rc1 Nhg4 Rc3 Na6 Rc2 Rd8 a8N Nb8 Rh8 Rc8 g8Q Qa7 Qf7 Rc6 Rg8 Ra6 Qg7+ Kh5 Ra3 Ra4 Rd3 Ra2 Qf7+ Kh6 Rd5 Nh2 Qb3 Rf4 Rcc8 Nhg4 Qb2 Bc5 Qb3 Rfa4 Qe7 Bb4 Qc4 Ne4 Qf7 Nd2 Qg7+
1R2q1Q1/bp2rbNR/1qQ3nB/4Nnrq/RP1P2B1/r2q4/p6Q/k1B4K b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nc6 h4 gxh4 Qe2 Nb4 Qd1 Nxa2 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 Kb4 d4 e5 f6 h5 d6 c5 f7 a5 f5 a4 g5 e4 f6 h3+ Kh2 e3 b3 h4 g6 a3 g7 c4 d7 c3 Ba6 c2 Bd2+ Nc3 Qh5 c1R Bd3 a2 Bc2 e2 Nf3 e1Q Bd3 Rh7 Qe5 Ne7 g8R Nf5 Na3 Qb6 d8Q Be6 Ng5 Bc5 f8B Re7 Qc8 Bf7 Nc4 Ra3 Qc6 Qe3 Be2 Rg1 Bg7 Qd3 Bc1 Nd5 Ne6 Kc3 Rb1 Rg5 Bh6 Nf4 Rb8 Ng6 Bg4 Kc2 Kg1 h2+ Kg2 Kc3 Ng7 Kc2 Qg3 Kc3 Ne5 h3+ Kf2 Kc2 b4 Kc3 Rb3+ Kc2 Rc3+ Kb1 Qf4 Ka1 Rb3 Bc4 f7 Be6 f8Q Bf7 Rd1 h1Q Qh2 Qhf3+ Kg1 Qfe2 Kh1 Qee3 Qg8 Qe1+ Qg1 h2 Rd2 Qbb5 Rf2 Ba7 Rf3 Qee2 Rh3 Qb6 Rc3 Qe1 Rc5 Qee3 Ra5 Qee2 Ra4 Qee3 Nf3 Qe6 Rh4 Qc8 Qg2 Qe8 Ne5 Rh5 Bhf4 Rg5 Rh7 Rh5 Bh6 Rg5 Qg3 Qed8 Kg2 h1Q+ Kf2 Qh3 Kg1 Qe8 Qh2 Qh5 Kh1
3b1Kbn/1pN2QR1/4Pr2/Q1p2r2/P1NqNn2/1r5B/B1kr1BRq/1b5Q b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 g4 h5 a4 f5 d6 h4 d5 h3 d7 f3 Ke6 b3 Kf7 b2 e4+ Kb4 e5 f4 g6 h2 g5 f2 d6 f3 g7 Be7 g6 Rh6 Ra2 Na6 Ne2 Nc7 Be3 Rh3 Ng3 Ne6 Nd2 Kc3 Nc4 b1B Rg1 h1Q Qe1+ Kb3 Ne4 Qh2 Rg5 Rg3 Bh3 f1R Rg2 Nf4 Bf2 Kc2 Qa5 Rd1 Qe1 Ra6 Qh1 Rd2 Rg4 Qc7 d8Q Qd7 Qa5 Bd8+ Kf8 Nh6 g8B Nf7 g7 Nh8 Rg5 Qg4 d7 Rf6+ Bf7 Rf5 g8Q Rf6 Rg7 Qh4 Bd4 f2 Qh7 f1R Bf2 Rb3 Qf5 Bb6 d8N Be6 Qh7 Bd5 Ne6 Bd8 Nc7 Be6 Be1 Qf2 Qh5 Qd4 Bf2 Bf5 Qf3 Bh7 Qh5 Bg8 Qg6 Rfb6 Bd5 Rd6 Qf7 Rf6 e6 Ne2 Be1 R1f5 Bf2 Nf4 Ncd6 Rg3 Ba2 Rb3 Nc4
4Bq2/kp2NNq1/P2p1b1q/NP1rbR2/1Bb4Q/2n1r3/1Q3R2/B1K1b1Qn b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 c5 gxh5 Na6 d4 cxd4 b5 Nb8 Qd2 Qc7 Qc3 Qd8 Qb4 axb4 Kd2 e5 c4 g5 h4 e4 f4 g4 a4 g3 h6 d3 a5 b3 h7 b2 h5 g2 a6 Nc6 c5 Nge7 h6 Nd5 f6 Rb8 f7+ Ke7 f5 Nc3 Rh5 Ne5 c6 Kd6 c7 Kc5 f6 Kb6 Na3 b1Q Nh3 g1B Ra2 Bg7 f8Q Ng4 f7 Bf6 Qg7 Qf8 Nc4+ Ka7 Na5 Bgd4 Bg2 Qa1 Bb2 Bde5 Rf5 Nf2 Ng5 Nh1 Qg8 Qg1 Ba1 Qb6 Rb2 e3+ Kc1 e2 Bc6 e1B Rbf2 Qg7 f8B d2+ Kc2 Qc5 Nf7 d1Q+ Kb2 Qh5 Kc1 Qd6 Be7 Qf3 Bf8 Qe6 Bb4 d6 Be8 Bd7 c8Q Bc6 Qd8 Bd5 Qe7 Bc4 Qd8 Qf8 Qg1 Qg3 Qe7 Rg8 h8N Rg5 h7 Rh5 Qd8 Qgg7 Ng6 Rc8 h8Q Rc5 Rf1 Rh3 R1f2 Re3 Ne7 Rd5 Qh4 Bg5 Qd7 Qeh6 Qd8 Bgf6 Qb6+ Kb8 Qbd4 Ka8 Qd2 Ka7 Qb2
3b1Rr1/PQNq3N/2bB2bp/BB6/r1Nb3k/2Q2q2/q1RpP1Rn/n6K b - - 0 1 illegal: No proof kernel
2QnNb2/PB2kNrn/1p4n1/1q1P1bq1/QB2R2Q/K3p1n1/1NB1R3/2b3r1 b - - 0 1 illegal: No possible last move
2Q2b1r/P1Q2p2/1PR5/1r6/BN1BNBbr/K6b/nnprRq1q/Qk2N3 b - - 0 1 illegal: No possible last move
4n3/p1B1qk1Q/Nr5P/3r2n1/NP1R2b1/2q1R1KN/2q1QpB1/b1b1Rq1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 c5 b4 g5 e4 f5 d4 c4 h4 c3 b6 c2 h5 f3 e5 g3+ Ke3 g4 Kf4 g2 e6 f2 d6 g3 h6 Bg7 b7 Nc6 b8N Ne5 e7 Kf7 d7 Nf6 d5 Nf3 d6 Ne8 Ra3 Ng5 Nh3 g1Q Qe2 g2 Na6 Ba1 Nc3 Rb8 Kg3 Rb6 Bf4 c1B Na4 Qc7 d8Q Qc2 d7 Rh7 Bc7 f4+ Kh4 f3 Re3 Qh2 Kg4 g1Q+ Bg2 Qe1 Rf1 Qed2 Re1 Qe5 Bh1 Qec5 Kg3 f1Q Bg2 f2 Bh1 Nd6 Qh8 Qdc3 d8R Ne8 Rd4 Bg4 Bg2 Rg7 Bh1 Rgg6 Bg2 Rgd6 Qh7+ Ng7 Bh1 Rd5 e8B+ Kf6 Rdd3 Qe7 Bc6 Kf7 Ba8 Qa2 Rd4 Qac2 Qe4 Ne8 Q4d3 Rf5 Bag2 Rd5 Qh7+
1bR2nR1/1r6/1BbQ3r/3QpP2/1P1rN2r/n3RN2/Kpbq1B1k/N4b1B b - - 0 1 illegal: No proof kernel
2BB4/r3QbRr/NnPB2p1/4n2R/1b3q1R/2nk1Qr1/2n2pPK/r2NQ3 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 g6 h6 Qc7 Bd2 Qe5 Bc1 Qg7 hxg7 Ba6 Ra2 Bb7 Ra1 Bc8 Kf2 Ke7 e4 Ke6 c4 Ke5 b4 d5 b6 a5 b7 f5 b5 h5 b6 d3 c5 Kd4 c6 d2 e5 f3 Kg3 f4+ Kh2 h4 e6 h3 e7 a4 e8R a3 Bc4 a2 Bd3 f2 Re3 f1Q Be4 f3 Re2 Nd7 b8Q Ra7 b7 Rh7 Qd6 Ne7 b8B Ne5 g8Q Be6 Qf7 Nc8 Qde7 Nb6 Qe1 d1N Nc3 Ne3 Bf5 Nc2 Re4+ Kd3 Bg5 d4 Nd1 f2 Rb1 a1R Nf3 Bc4 Qff6 Bf7 Bc8 Qe2 Rb4 Qe3 Nd2 Qf3 Rh4 Qe3 Ne4 Qf4+ Ng3 R1a3 Rb5 Rb3 Rd5 Rba3 Rd7 Rb3 Qe8 Bb4 Qee7 Rb1 Qed6 Rba1 Rh5 Bc4 Rg7 Qf5 Nc3 Be6 Nge4 Bf7 Nc5+ Kc4 Na6 d3 Kg3 d2 Rh6 d1N Rh5 h2 Qde6+ Kd4 Bd6 Kd3 Qe8 Qe4 Qf4 Qf5 Bd8 Qf6 Qe7 Qf5 Nd5 Nc3 Ne3 Qe4 Qf3 Qd4 Rf1 h1R Nd1+ Qe3 Rg1 Rh4 Rh1 Rd4 R1h4 Rg4+ Kh2 Rg3 Qg4 Qf4 Qf3+
1B1Q3q/1r1n3P/N2rQQrr/n3pp1P/n2R1N2/1B1NKb2/2R5/bk4Bn b - - 0 1 illegal: No proof kernel
2qNrb2/R1N1PR2/1rBNQ2r/4rP2/QQ1pnn2/3b1k2/1p5b/2b2RBK b - - 0 1 illegal: No proof kernel
1bBB3B/kr2P1p1/1NQ1Rrq1/1N3Q1P/4b1nb/1bn3Q1/p4n2/K1nRN3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Kd7 Kd2 c5 Kc2 Kc7 h4 Kb6 e4 f5 b4 a5 Kb2 c3+ Ka2 c2 e5 a4 d5 c4 e6 c3 h6 f3 h5 f2 h7 f4 d6 f3 d7 a3 Nh3 Qf6 d8Q+ Ka7 Q1d6 Na6 Bd3 f1N Ng5 f2 Nf3 Bb7 Bf5 Nc5 Ne1 Ne3 Qc8 f1B Qdc6 Ng4 Bg5 Qg6 Bd8 Bd6 e7 c1B Rh3 c2 Nc3 Rb8 Re3 Bd3 Re6 Bg5 Rd1 c1N+ Ka1 a2 Q8d7 N8f6 b6+ Ka6 Qdc8 Bc4 Nb5 Rf8 h8B Na4 Q8d7 Nf2 Bh3 Ba8 b7+ Nb6 Bf5 Bh4 Bg4 Bh2 Qd3 Bb3 Qf5 N6e4 Bh3 Rf6 Bg4 Nc3 Bh3 Rc8 b8Q Rc7 Bg4 Rb7 Qg3 Qh6 Nd4 Ka7 b5 Nbd5 b6+ Ka6 Nb5 Qg6 Bh3 Ne3 Nd6 Rd7 b7+ Ka7 b8N Rb7 Nd7 Neg4 Nb6 Rd7 Qc4 Be4 Qc6 Rb7 Bf1 Rc7 Ba6 Rd7 Bc8 Rb7 Qh3 Bf4 Qg3 Be5 Ndc4 Bd6 Na3 Bb8 Nb5+
1Bk4b/4p1Bp/3RP1N1/q1nr1Q1R/P2b1RQ1/B1b1Qnn1/K4N2/2rb2n1 b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 h4 d5 hxg5 f5 cxd5 Ra6 e5 Ra5 Bd3 Ra8 Be4 fxe4 f4 Kd7 g4 b5 a4 c5 d4 c4 Kd2 b3 Kc3 b4+ Kb2 e3 f5 e2 g6 e1B e6+ Kc7 d6+ Kb7 g7 Ra6 g5 Ra7 g6 Ra5 f6 Nh6 g8Q Nd7 d5 Nf5 f7 Bg7+ Nc3 Ng3 f8B Bd4 g7 Nc5 d7 Kc7 Qe2 Ba6 Kb1 b2 Ka2 b1N Qf7 Nd2 g8Q Nf3 Nd1 c3 Nh3 c2 Qe3 Be2 Qf5 Bec3 Ndf2 Ng1 Nf4 Bd1 Ba3 c1B Ng6 B1b2 d6+ Kb7 Rh5 b3+ Kb1 Qc7 d8B Kc8 Bg7 Rb5 Ra2 Qb6 Ra1 Qa5 Ra2 Ba1 Rc2 b2 Ka2 b1N d7+ Kb7 Bc7 Nd2 d8R Ndf3 Rd6 Bab2 Nf8 Kc8 Bb8 Ba1 Rd2 Rb1 Rb2 Rc1 Rb4 Bab2 Bh6 Ba1 Qgg4 Rg8 Ng6 Rd8 Bg7 Rd7 Rdb6 Rd5 Rd6 Bab2 Bf8 Bh8 Rf4 Bcd4 Bh6 Bbc3 Bg7
br2RQ2/K1P2r1N/p4nPb/2R3Bk/4nBn1/1nr3rp/B3N3/qQQ1N3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 d5 b4 h5 g4 e5 f4 a6 c4 h3 b6 h2 g5 h4 b5 h3 c5 Ra7 f6 Kg6 c6 Nd7 b7 Bh6 b8B Qa5 b6 Bb7 f7 Ba8 f8Q Ngf6 Ne2 Kh5 g6 Qa4 Rg1 h1N b7 Ng3 f5 Nge4 Bg5 Qa5 Nd2 Ndc5+ Kc2 Rg8 Nf3 Nb3 Rc1 Qa1 Kd3 Rh8 Bd6 Rg8 b8Q Rf7 Rc5 Rh8 Qc1 Rg8 Kc2 d3+ Kd1 d4 c7 d2 Kc2 d1N Kd3 Rh8 Kc4 d3 Ne1 d2 Rg3 Ndf2 Re3 d1R Qb5 Ng8 f6 Rd3 Qb7 Rc3+ Kd5 Nd1 Kc6 Ndf2 Kb6 Ng4 Bg2 Rfh7 f7 N8f6 Ka7 Rg8 Qe7 Rb8 f8N Rf7 Qd8 Ned2 Nh7 e4 Rf3 e3 Bdf4 Nde4 Qf8 Nd4 Qbb1 Nb3 Ng1 e2 Re3 Ned2 Bd5 Nde4 Nc2 e1R Ne2 Rg1 Ne1 Rg3 Bc4 Nd6 Re8 Nde4 Bd5 Na5 Ba2 Nb3 Qd3 Nd6 Qdc2 Nde4 Q2b1
rqk1Kb1q/np2N3/Qn1RqP2/1B2B3/N2Qb3/1b1BpR2/b2NP3/2Q1b3 b - - 0 1 legal: proof: g4 a5 c4 g5 b4 axb4 h4 d5 cxd5 f5 Bb2 Ra6 Ba3 Rg6 Bb2 fxg4 Bc1 g3 Nf3 g4 Ng1 Rg5 hxg5 Bf5 Rh3 Be6 Rh1 Bc8 d4 Kd7 Kd2 h5 Kd3 e5 Kc4 c5 a4 g2 f4 h4 a5 g3 a6 b3 a7 e4 a8Q b2 g6 e3 f5 h3 f6 h2 d6 Nc6 Kd5 c4 g7 c3 Nf3 g1Q Bg2 c2 Qa6 Qe7 Nc3 b1B Na4 Nh6 g8B Na7 Bh7 Ng4 Bb2 c1B Qd2 Qf2 Rf1 h1B Bg6 Kd8 d7 Bh6 Qc2 Qg7 Kd6 Bd2 d5 Ba2 Rad1 Ne5 Qc1 Nc4+ Ke6 Kc7 d6+ Kb8 Bh3 g2 Bh7 Qgg3 Kf7 g1Q d8N Q1h2 Bd7 Be1 Bb5 Be6+ Ke7 Qe5 d7 Nb6 Nc6+ Kc7 Rd3 Qfh4 Nd2 Ra8 Bg6 Bhd5 Rf3 Bg7 Rd4 Qh8 Bgd3 Bdb3 Rd5 Bf5+ Kf7 Qd6 Ba1 Q2h3 Bc3 Bf8 Be5 Nbc8 Ke8 Be4 Nb4+ Kb8 d8Q Qf5 Qd7 Nb6 Rd4 Qc7 Qd5 Qfh3 Nc6+ Kc8 Qdc4 Qg4 Rd6 Qb8 Qd4 Qe6+ Ne7#
1Bb3R1/3p2K1/1QQRPp2/nB1n1NQ1/N4Pr1/2rrR1r1/3qk2r/3q1n1N b - - 0 1 legal: proof: b4 g5 d4 e5 a4 exd4 h4 gxh4 c4 b5 cxb5 Bc5 a5 Bb6 axb6 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Ke7 Kd3 Kd6 Ke4 h5 Kf5 Kd5 g4 Kc4 e4+ d3 e5 a5 g5 c5 b7 a4 g6 h3 g7 h2 e6 h4 b6 h3 b5 a3 Qh5 f6 Kg6 a2 Qg5 Ra3 Bf4 Nc6 b8Q Na5 b7 Rh4 b6 Rg4 Ne2 d2 Qd6 d1Q b8Q Rd3 b7 Ne7+ Kf7 Rdg3 g8N Nd5 Nbc3 Kd3 Nh6 c4 Na4 c3 Qc6 c2 Nf5 c1R Kg7 Rc3 Rb1 a1N Rb3 Nc2 Qbc7 Nce3 b8R Kd2 Q7b6 Qc7 Be5 Qd6 f4 Qb4 Rg1 h1R Ra8 h2 Bb8 Ke1 Ra6 Qbd4 Ra3 Q4d2 Rg2 Rg1 Rb3 Rf3 Neg3 h1R Bb5 Rh2 Nh1 Nf1 Rg3 Rfe3 Rf3 R1g3 Ra8 Rc4 Rd3 Rc3 Rd4 Nc7 Rd6 Red3 Ra7 Nd5 Rc7 Bb7 Rc8 Ke2 Rg8 Bc8 Re3+
b1q3q1/Q5q1/1QnK1R1b/nqNpn1BN/1B4B1/1p2r3/1q1PP1k1/3RQ1N1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 b3 exf4 Nc3 b4 Nb1 Ra7 Nh3 Rb7 Ng1 Rb5 cxb5 a4 Bb2 axb3 Ba3 Nf6 Bc1 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kh4 a4 f5 h6 c5 h3 Kg3 h4 g5 h7 c4 b6 g4 a5 b2 b7 f3 a6 b3 h5 f4 a7 f2 a8N c3 h6 f3 Bg2 f1Q Nh3 f2 Nf4 c2 Nh3 Nc6 b8Q+ Ne5 Bf3 Ne7+ Kd6 Bb7 Nc3 b1Q Qa7 Qb2 Nc7 Ba8 Na6 Qe8 Ra3 Qg2 Nc5 f1N Nd5 Ne3 Ra6 Qh5 Ndf4 N7c6+ Kc7 d5 Ng1 Qe8 Nh5+ Kf2 Rb6 g3 Bg4 N3c4 Ra6 Rg8 h8Q N4a5 h7 Bh6 Kd6 Rf8 Qb6 Rf3 Qg7 Re3 h8B Qg8 Qgc7 Qh2 Qh7 g2 Qha7 Qf4 Bg7 Qa4 Bf6 Qb5 Bg5 Qg7 Nf3 g1Q Qe1+ Kg2 Rh3 Qh2 Ng1 Qg3 Rh1 Qa2 Ba3 c1Q Bb4 Qab2 Rh3 Qf2 Rf3 Qg3 Rf4 Qcc2 Rc4 Qf5 Rc1 Qc8 Ra1 Qf2 Rb1 Qff7 Rd1 Qfg8 Qbb8 Q7h8 Qbc7 Nd4 Ke7 Kh2 Rg6 Ndc6+ Kd6 Kg2 Qcb6 Qhg7 Rf6
4Q3/1b3q1R/pr6/1QB1qRP1/K1p4N/PN3n2/2rB1Nkq/qBqQ2nn b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Bh6 Be3 fxg4 Bc1 g3 Bf4 g4 Bc1 Bg5 hxg5 Bb7 Qb3 Ba6 Qd1 Bc8 Kd2 Ke7 Kc2 Ke6 b4 Kf5 f4 Ke4 e6 d5 e3 h5 b5 c5 f5 d4 e7 h4 e8Q+ Qe7 a3 a6 f6 c3 Kb3 g2 f7 d3 f8B g3 b6 c4+ Ka4 d2 b7 c2 Nf3 g1N Be2 h3 Qe1 d1Q Nh2 g2 Bd2 Nc6 b8Q Nf6 Ng4 h2 Ne5 Qf7 Ng6+ Ne5 Qbb5 Nh5 Bc5 Ng3 Bd3+ Kf3 e4 Qe2 Qd1 c1Q Ra2 Rb8 Bc2 Nd7 e5 Bb7 e6 Ne5 e7 Rh6 Rb2 Rd8 Rb4 Rd3 Rb3 Rc3 Bd3 Rc2 Be4+ Kg4 Rf3 Kh3 Rf5 Qe3 Qh8 Qe1 e8N Nef3 Nd6 Qe3 Qa8 Qd4 Qae8 Qe5 Nh4 Re6 Bd3 Rf6 Ne4 Rb6 Ng6 N1e2 Bf8 g1Q Nf2+ Kg2 Bc5 Qe1 Nc3 Neg1 Ne2 Qea1 Nd4 Qe5 Nb3 N1e2 Rf1 h1Q Be4 Qh4 Rh1 Ng1 Bd3 Qhf4 Rh7 Nh1 Be4 Qh2 Bd3 Rb2 Bb1 Rc2 Nh4+
1Nqrr2r/1Rnpn3/1Q1B4/nR1B1N2/Bb1Qq1Pk/N2P2n1/2pR4/2K2n2 b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Nf6 b6 Bh6 b5 Rg8 c5 Bf8 c6 Bb7 cxb7 Rh8 Qa4 Ng8 Qc2 Bb4 Qd1 Bf8 g4 Ke7 e4 Kf6 e5+ Kg5 e6 f5 d3 c5 Kd2 h5 e7 a5 e8B h3 Qb3 a4 Nc3 a3 Qb2 f3 Bg6 h4 Qb3 h2 Qb4 h3 Bg2 f2 Ne4+ Kh4 Nc3 f1R Bd5 f4 Bgf7 c4 Rb1 a2 Nge2 a1N Ng3 f3 Ba3 Na6 b8N f2 b7 Re1 b6 Nc7 Nb5 Re8 Rhd1 h1N Kc1 f1N Rd2 c3 Qd4 c2 Bd6 h2 Na3 Qc8 Rb5 Ne7 Bb3 Rd8 Bfd5 Re8 Ba4 Nb3+ Kb2 Na5 Kc1 Kh3 Nf5 Nhg3 Na6 h1Q b8Q Qg2 b7 Qe4 Qba7 Rd8 b8R Re8 R8b7 Rd8 Nh6 Kh4 Qab6 Ng8 Be5 Bb4 Bd6 Ne7 Nf5+ Kh3 Ne3 Rde8 Bf4 Qd8 Nf5 Qb8 Ra7 Qb7 Be5 Rad8 Bd6 Qa8 Rb7 Qc8 Ng7 Kh4 Nb8 Qg6 Na6 Qh7 Nb8 Qe4 Nf5+
Q4qr1/3p1BP1/Rp1k3q/rBnN2Br/1N1n3n/6r1/rP2N1R1/1Q1b2QK b - - 0 1 illegal: No extended proof kernel
1qQ4k/npN3q1/QRQ1r2p/4n1Rn/6NN/1K6/1PBbnBP1/3rnRq1 b - - 0 1 illegal: No proof kernel
B1R2b2/1Nn2B2/p5K1/P3p1Q1/bR2Pqnk/3b1Qnq/N1BQq2R/b2r4 b - - 1 2 legal: proof: g4 f5 c4 fxg4 d4 c5 b4 b5 d5 h5 d6 Nh6 Bf4 Ng8 bxc5 h4 Bg3 hxg3 c6 Na6 c5 Rb8 Qb3 Rb7 Qd1 Rc7 dxc7 Nb8 Kd2 Kf7 Kd3 Kg6 Ke4 Kg5 f4+ Kh5 Kf5 e5 h4 g5 e4 g2 a4 b4 a5 b3 Nd2 b2 Rb1 Nf6 Ne2 g1B Rh2 g3 Nc3+ g4 Bd3 g2 Nc4 Na6 Bc2 Bd4 Qd2 g1N Na2 g3 Nd6 g2 Nb7 Qe8 Qe1 Ng4 Qd2 Ne3+ Kf6 d5 f5 Bd7 c8Q Ne2 c7 Ba4 c6 g1Q Qe6 Ng3 c8B Qd1 c7 Qh1 Qf7+ Kg4 h5 Qd7 h6 Qf3 h7 Qf4 Qe6 Bc3 Kg6 d4 Qb3 d3 f6 Bd4 f7 Bc3 Rg2 Kh4 Rh2+ Qh3 Be6 Ng4 c8B Nc7 Bd5 a6 Bce6 Bc5 Qa3 Rd8 f8Q Bd6 Qf7 Bf8 Qf5 Rd7 Bf7 Rd8 Rc1 b1B Qb3 Ba1 h8R+ Bh6 Re8 Bf8 Re6 Rd7 Rb6 Rd8 Rb4 Rd7 Qg2 d2 Qbf3 d1Q Qd2 Qe2 Bd1 Na8 Rc8 Bd3 Bc2 Rd8 Nc5 Nc7 Ba8 Rd4 Nb7 Bdb5 Qe1 Rd1 Qd2 Bd3 Qg5+
B1RNrqq1/1r2bk1N/1Pq3p1/n1Q1B3/4Br1n/K1n3P1/1p4R1/Q1r2R1Q b - - 0 1 illegal: No proof kernel
2q2n1B/2Q2B2/N1BpnNr1/KRNb1Qp1/2r3Pr/2Q3r1/n2Pk2r/5Rn1 b - - 0 2 legal: proof: f4 b5 h4 e5 a4 exf4 h5 c5 h6 g6 axb5 Bg7 b4 cxb4 hxg7 Bb7 Na3 Ba6 Nb1 Bc8 c4 Ke7 e4 Kf6 g4 Kg5 e5 a5 c5 f5 e6 h5 b6 d6 c6 h4 b7 b3 e7 b2 e8N f3 c7 Kf4 Rh2 h3 Rf2 g5 Bb5 h2 Rg2 h1R Bd7 f2+ Ke2 f1N Kd3 a4 Kc3 a3 Kb4 a2 Nf6 Nc6+ Kb5 Ng3 b8Q Ne2 Qc2 Bb7 c8B R8h2 Nf3 Nge7 g8Q Ra4 Na3 b1N Rg3 Ng6 Qf8 Rc4 Rg2 Ng1 Qg7 Nf8 Qc7 Nd4+ Ka5 Bd5 Nb5 Nc3 Rb1 Nde6 Ne1 a1R+ Ba3 Ra2 Nd3+ Kf3 Nc5 f4 Bc6 Rb2 Ba6 Qc8 Qf5 Rb3 Bb2 Na2 Re2 Rh4 Ree1 R1h2 Rf1+ Ke2 Bab7 f3 Be8 f2 Bbc6 Rh6 Bf7 Rg6 Qh8 Rg3 Qh3 Rgg2 Qc3 Rh4 Qb8 Rhh2 Nc7 Rg3 N7a6 Rh4 Qc7 Rh2 Rfd1 f1R Ba1 Rh4 Rb5 Rf2 Rf1 Rfg2 Qcc2 Rgh2 Bd4 Rh5 Qc3 R2h4 Ng8 Rh2 Bh8 R5h4 Nf6
r1r2r2/pNR1Rn2/P1Kn2R1/3Q1QN1/3knB1P/2n1n1Qr/1bp5/q1N4B b - - 0 1 legal: proof: d4 h5 c4 e5 dxe5 b5 e4 bxc4 g4 hxg4 e6 Ba6 e5 Bb7 f3 Be4 fxe4 Rh7 Qf3 Rh6 Qd1 Rh8 Kf2 Ke7 Ke3 c5 h4 g5 a4 d5 b4 f5 b5 d4+ Ke2 g3 Kf3 c3 b6 g2 a5 d3 b7 c4 a6 d2 Qa4 d1N Qb5 c2 Qa5 f4 Qa2 c3 Bc4 Nh6 Nh3 g1R Nd2 Qd4 Nb3 Nf5 Bd5 Nd7 b8Q Nf6 Bd2 Nd6 Rc1 Rg2 Rg1 Bg7 Bc6 Rd8 Qa5 Re8 Qd5 Rf8 Qbb5 Rh2 Rg3 Kd8 e7+ Kc7 e8Q Qg1 Qf1 Kb6 e6 Qd4 e5 Nfe4 e7 Qa4 e6 Qa1 Nf2 Rh3 Qg6 Bf6 e8R g4+ Ke2 f3+ Kd3 Bh8 e7 Be5 Rg1 g3 Bf4 g2 Qg3 Bg7 Nd4 Be5 Ne6 Bg7 Ng5 Bh8 Ng4 f2 Ne5 Bg7 Kd4 Bf6 Qfd3 f1N Qdf3 Nfe3 Qfg4 Bh8 Qf5 Bg7 Rd8 Bh8 e8N Bf6 Re1 g1N Rd7 Bh8 Rf7 Bg7 Rf6 Bh8 Nd3 Bg7 Ke5 Nf3+ Ke6 Ne5 Rg6 Nef7 Kd7 Be5 Nc7 Bd4 Nce6 Bf6 Nec5 Bg7 Bb7 Kb5 Qde5 Kc4 Bc6 Bh8 Nb7 Bf6 Qa5 Kd4 Bd5 Bh8 Kc6 Be5 Rb1 c1R Qd8 Rc2 Nc1 Rd2 Rb5 c2 Rc5 Ndc3 Qdd7 Nf2 Bh1 Nfe4 Re2 Bg7 Re5 Rd1 Re7 Rf1 Qde6 Rfc8+ Rc7 Ng2 Bd2 Bf8 Qe1 Nc4 Rf2 Nd8+ Kd7 Ba3 Qf4 Nd6 Re2 Bb2 Qeg3 Rf3 Qfg4 Rf8 Qgf5 Nf2 Bf4 N8f7 Re5 Nfe4 Kc6 Ne3 Qa2 Rcd8 Ree7 Rdc8 Qad5+
6nR/3n2pn/1NqQ1q1p/1B4kP/bbQPN2b/4BrBb/N2nQR2/K7 b - - 0 1 illegal: No possible last move
r2NR1nQ/RqQ2K1k/1B1P2pb/pq2Q1P1/2n2N1r/5r2/3r4/3NqBRq b - - 0 1 illegal: No extended proof kernel
1k2b3/1np1N2r/2Pb3N/PnQ5/qQQ1pqnb/R3RRB1/2N2bB1/n2K4 b - - 0 1 legal: proof: g4 d5 e4 dxe4 b4 a5 Ba6 axb4 Bf1 b5 h3 f5 gxf5 g5 h4 g4 Rh3 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Qd4 Nh3 Qd5 Ng1 Qd8 c4 Kd7 f4 e5 d4 h5 a4 b3 f6 e3 d5 e4 f5 e2 g6 b2 c5 g3 f7 b4 f6 g2 g7 h4 a5 b3 d6 h3 Qc2 h2 Qc3 Qe8 Nd2 b1N Ra3 b2 Nc4 Nd2 Ne3 b1N Nf5 Nh6 g8Q Nc6 Nf3 g1B Bg2 Nd8 Qb4 Ng4 N3d4 Nb7 Nh6 Nc3 Nc2 Nb3 Bf4 Na1 Bg3 Nb5 Kd2 e1B+ Kd1 Kc6 d7 Bd6 f8R Rh7 f7 Bgf2 d8N+ Kd7 Rg1 h1Q Nc6 Qh4 Ne7 Kd8 Rh1 Bd7 Rh3 Bc6 Qg7 Qg5 Qgc3 Qf4 Qcc4 Bd7 Nef5 Kc8 Ne7+ Kb8 c6 Qd8 Bh4 Be8 Rhe3 Qd7 Bg3 Qdf5 Rg8 Qf6 f8Q Qb2 Qf5 Qa2 Rf8 Qb3 Qfc5 Qa4 Bh2 Bh4 Bg3 Bf2 Rf7 Qg5 Rff3 Qf6 Qb6 Qf4 Q6c5
qN2nK2/2R5/rB2Rpp1/kqN1Nq1r/3q2rP/1Qr1nPR1/B6Q/1B5b b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 e3 d5 Qf3 d3 Qf5 d4 Qf3 e6 Qd1 Be7 Bh3 d2+ Kf1 d3 Kg2 Rh5 Qe1 Bf6 Qd1 Bd4 exd4 Re5 Kg3 Rc5 Bf1 Rh5 Kg2 Rh8 Kg3 Kd7 Kf4 Kc7 Ke5 Kb6 h4 a5 b4 g6 c4 g3 d5 a4 d6 g2 d7 a3 Kd6 a2 c5+ Kb7 b6 Ka6 c6 f6 b7 e5 b5+ Kb6 c7 e4 Rh3 e3 Nf3 g1R Nc3 e2 Ne4 Na6 b8Q+ Bb7 c8B Qe8 d8R e1R Bf5 Nh6 Rc8 Ng4 Ba3 Qc6+ Ke7 Rh5 Kf8 Re3 Qh2 Nc7 Be6 Ne8 Rc7 Qc2 Rb1 a1Q Bc5+ Ka5 b6 Ka6 Bd5 Qca4 Qc2 Qb5 Re1 d1Q Qb2 d2 Bd3 Qb3 Bb1 Q3d3 Bc4 Bd5 b7 d1Q Bb3 Qaa5 B3a2 Q1c2 Bb6 Qd4 Qb3 Rc3 Re3 Qcd2 Re1 Qg5 Re2 Qf5 Bc5 Qab6 b8N+ Ka5 Re1 Q6c6 Re3 Ra6 Ba7 Qa8 Nc5 Qbc4 Re6 Ne3 Ne5 Bh1 f3 Rg4 Rg3 Qb5 Bb6+
1rQ1Q2k/1p3K2/2r2p2/3BB3/R1B1q1rq/1PrP1N1n/n1q2QR1/qb1N3N b - - 0 1 illegal: No proof kernel
1K2R3/1b1rp1bP/QQB5/N2N2B1/k2nN3/2P1pn2/p1nqr1r1/2RQb1R1 b - - 0 1 illegal: No possible last move
R1N1RQQ1/Kpn1B1bR/p4b2/2r1Qn2/BP3kr1/1n5r/2P2pq1/1b2NN2 b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 d4 cxd4 g4 Qb6 gxh5 Qa6 Bd2 Qxa4 Bc1 Qa2 Kd2 Ke7 Kd3 Ke6 h4 Kf5 b4 d5 e3 g5 e6 a6 h6 g4 h5 g3 e7 g2 e8Q Be6 h7 Nc6 h6 Nge7 Nd2 Rc8 e4+ Kf4 e5 f5 Qg6 Na5 Qf7 Rc5 Qe2 Bg7 Qf8 Nb3 Ngf3 g1B Ne1 Qa4 Bg2 Qc6 Nf1+ Be3 Bb2 Bf2 Rh5 Bh4 Bc3 Rg8 h8Q Bhf6 Qh7 Rh8 Qhg8 Bf7 h7 Be6 Rh6 Bf7 Qh5 Be6 Ke2 d3+ Kf2 Bf7 e6 d4 Bh1 Nd5 e7 d2 e8N d1R Nd6 d3 Nc8 d2 Ra5 Bd8 Bf6 Nc7 Be7 Rc1 Ke2 d1N Kd3 Ne3 Qe2 Qg6 Bc6 Qg2 Ba4 Be6 Rb5 Ra1 Rb6 Bd5 Rbe6 Rc1 Bh4 Bdf6 Re8 Ra1 Qe6 Rg8 h8R Ra3 Rh5 Bh6 Rh7 Rg4 Qeg8 Bhg7 Rh8 Bf7 R5h7 Na5+ Bb3 Nb5 Re5 Rc6 Qd6 Be7 Qgd8 Nc7 Kd4 Bc4 Ba4 Ba2 Qd5 Bb1 Nb6 Rac3 Qc8 Rh6 Bf6 Rh3 Qf7 Bd8 Qce6 Be7 Ra8 Rc6 Nc8 Nb3+ Kd3 Bd8 Qf8 Rc4 Qeg8 Rc6 Nh2 Kg3 Re8 f4 Bg5 Nf5 Qe5 Rb6 Kc4 Rb5 Bh6 Bh4 Bg5 Ra5 Be7 Bhf6 Qe4 f3 Qd4 Rg6 Qc5 f2 Nf1+ Kf4 Qb5 Na1 Kc5 Rg4 Kb6 Nb3 Qc5 Rb5+ Ka7 Ra5 Qc3 Rc5 Qe5+
3kQ1QR/K2Nq1bq/Q7/3Bn1p1/2n3rP/Pp2B1B1/b1pR1Rr1/2n3Nq b - - 0 1 illegal: No possible last move, all moves rejected
Bb1QQ3/2r5/N3qB2/1Np4P/Q2Bkp1r/1nR3Rb/rq1nPKp1/nN6 b - - 0 1 illegal: No possible last move, all moves rejected
2q1bB1N/3n1q1Q/1kr1p3/2Q2pK1/rN4Bp/rn2Q1b1/PP1N1B2/Rq3R2 b - - 0 1 illegal: No possible last move, all moves rejected
1k1Nb1NB/1Qbq1Qr1/1n1pB1R1/QPP4K/n2n2B1/p7/pbR2r2/4Rq2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 cxd4 Ke2 a5 Kf3 h5 g4 e5 c4 h4 b4 d6 b5 Kd7 f6 Kc7 g6 a3 g7 a2 f7 h3 c5 a4 g5 a3 g6 h2 Qa4 d3 Nc3 d2 Bb2 d1Q+ Nge2 Na6 Rc1 Nb8 Rc2 Rh7 Bh3 Qd7 Bg4 Nf6 g8B Ne4 g7 Qf1 Nd4 Bb7 Ba1 Bc6 Nd5+ Kc8 Bb2 Nc3 Qa5 Na4 Ne6 e4+ Kf4 e3 Kg5 e2 f4 e1B f5 Bc3 f6 Be7 f8Q+ Bd8 Qe7 Bc7 f7 Be5 Rg1 h1N Nf6 Ng3 Nd8 Nf5 f8Q Nd4 Qff7 Ra7 Kg6 Rh2 Ba1 Rf2 Kh5 Nb3 Rh1 Bb2 Qe4 Nd4 Qh7 Qg2 Re1 Qf1 Qh6 Qe6 Qe3 Nf3 Qb3 Bc3 Qe8 Bb6 Bf7 Nd7 g8R Kb8 Rg6 Qe7 Ne6+ Bd8 Bg8 Ndb6 Qd5 Qc7 Qe7 Be8 Bf7 Qc6 Ng8 Rd7 Qf8 Bc7 Nd8 Re7 Bfe6 Qd7 Bb2 Bd4 Bc1 Ba1 Bb2 Rf7 Bh8 Rg7 Qf7 Nd4 Qdf3 Bb2 Qb7#
Qk2n1NK/2Rrr3/q2pQNBP/R6q/q2bR1P1/5pBb/2p1nQ2/r6B b - - 0 1 illegal: No proof kernel
RQB2n1R/1K2Qqk1/rBP5/1p4pr/qp1N1N2/5r1Q/1R2b2P/2bnB1q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 b5 Ke4 e5 Kd5 g5 f4 d6 a4 d3 c4 e4 c5 d2 h6 e3 a5 e2 a6 e1Q f6 Be7 h7 Bf5 a7 Qf2 Nc3 Qe1 Nf3 Qc8 Qb3 d1R+ Bd2 Nd7 Nd4 Bg4 f5 Qf8 Kc6+ d5 Bh3 Nh6 Kb7 Be2 c6 Qg1 Be1 Bc5 Rb1 Bd6 Rb2 Bf4 Qa3 Rd3 Qb3 Bf1 Nce2 Bc1 Nf4 Rf3 Qd3 Qe8 Qc3 Kf8 f7 Kg7 f8R Ng4 f6+ Kh6 f7 Ne3 Qc5 Be2 Qe7 Nd1 Rg8 Nf8 Bf5 Rd8 a8Q Rc8 Qa7 Ra8 Qb8 Ra6 Bc8 Qg4 Nc2 d4 Rf1 d3 Nd4 d2 Rf2 Ra1 Ra2 Qg1 Ra8 Ra6 Rg2 Ne3 Rf2 d1Q Rg2 Bd3 Re2 Qa4 Rb2 Ne6 Rf8 Nd1 Rg8 Be2 f8Q+ Ng7 Qf5 Qf7 Re8 Ne6 Qh3+ Kg7 Rf8 Rg8 Re8 Nf8 Rd8 Kh8 Re8 Rg6 Rd8 Kg7 h8B+ Kg8 Be5 Rh6 Bc7 Rh5 Bb6 Kg7 Re8 Nd7 Rh8 Nf8 Qhd7 Bf1 Qg4 Be2 Qh3
3qB3/1R6/P1KNr1q1/p2R1n2/1P1p2k1/NR5q/r1npQQNB/bb3B1n b - - 0 1 illegal: No proof kernel
2n4B/4NK2/P1n1p1r1/1QQq1P2/b1R1qBqp/1BpQ4/rk5b/1Rb2N1R b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kf7 Ke3 c5 Kf4 h5 Ke5 b5 f4 b3 a4 b2 d4 e3 g4 h4 g6+ Kg7 f5 e2 g5 e1B d6 c4 a5 c3 d5 e6 d7 b4 d6 b3 a6 Bb7 Qd3 Rh7 Ne2 Bd2 Nf4 Bc6 Qb5 Ne7 Nd5 Nc8 Bc4 Rh6 Ne7 Ra7 Qc5 Ba4 Bd5 Be3 Nd2 b1Q Nf1 b2 Bb3 Rb7 Bd2 Qa5 d8Q Qd1 d7 b1Q Qb5 Bg1 Bf4 Bh2 Qb6 Qbd3 d8B Qg4 Q6c5 Qdf3 Qd3 Rd7 Qdb5 Rd2 Bb6 Ra2 Ba7 Kh8 Kf6 Nc6 Kf7 Qe4 g7+ Kh7 g8R Rg6 Qd3 Bh6 Rd8 Qb5 Rd4 Qc4 Qb5 Qcd5 Rc4 Kh8 Ke8 Kg7 Bd4+ Rf6 g6 Bg5 Bc7 Bc1 Qc5 Kh6 g7 Rg6 g8Q Kh5 Kf7 Kg5 Bd8 Kf4 Qe8 Bd2 Bh8 Bc1 Qb1 Kf3 Bc7 Ke2 Bf4 Ke1 Bc2 Ke2 Qbb5 Ke1 Bb3 Ke2 Qd8 Kd3 Qdd6 Ra3 Ba2 Kc2 Bb3+ Kb2 Qd7 Ra2 Qdd6 Qde5 Qd3 Q5d5 Rb1#
nnQ2R1K/1N5P/2r2rR1/1qP2B1Q/N1NB3b/bpQpq2p/b1B2n2/k7 b - - 0 1 illegal: No proof kernel
n5q1/2q3P1/3QBRQ1/1p4B1/nprRP1rk/b2Q4/p2BRK1N/2nN1br1 b - - 0 1 illegal: No proof kernel
r5rq/BB4pq/1Rb1kN2/b1Qp1R2/P1R2P1Q/bN2p1n1/B1Q1n2K/1r6 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 a4 Kf7 h4 e5 c4 b5 f4 d5 Kf2 g3+ Kg2 e4 c6 b3 c5 b2 f6 b4 h5 b3 h6 Bb7 c7 Bd6 c8Q Ra7 c6 Bc5 c7 Bd4 h7 Na6 Nf3 Bc6 Nfd2 Bb6 Nc3 b1R Bc4 b2 Ba2 Nh6 Qc2 Ba5 Nb3 Nc5 Be3 Ne6 Rc1 Ra8 Ba7 Rg8 h8Q Nf5 Qh4 Ned4 Kh1 g2+ Kh2 e3 Ne4 Ng3 Qc5 Nde2 Rc4 Bb4 Qf5 Ba3 c8B Qf8 Bb7 g1B+ Kh3 Bf2 Kh2 Be1 Qfh7 Rd1 Rb1 Ke6 f7 Ba5 Nf6 Qb8 f8R Rf1 Rbc1 b1Q Qc2 Qe8 Re1 Qh5 Rd1 Qh8 Rdd4 Re1 Rb4 Rd1 Rdc4 Rg1 Rb6 Rc1 Qd2 Qbh7 Qc2 Rf1 Ng4 Re1 Rf5 Rb1 Nf6
2KRN3/3Br1p1/1Q2p3/rnRN3k/1nP1Ppbq/1b2N1Br/2Q1QqBb/8 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 e6 f6 Qe7 Be3 Kd8 fxe7+ Kc7 Bc1 Kd6 Kd2 Ke5 Kd3 Kf5 Kc4 Kg6 Kc5 a5 Kb6 f5 Kc7 d5 e8B+ Kf6 b4 g3 h4 g2 c4 d3 e4 d4 b6 a4 b5 d2 h5 Kg5 b7 d3 b6 a3 h6 a2 h7 Ne7 Ne2 g1Q Nbc3 Nbc6 b8N Nd4 b7 Qf2 Nf4 Ra5 Nd7 Nec6 b8Q Nb4 Qc2 d1Q Bg2 d2 Ncd5 Qh5 N7f6 d1B Qb6 Bg4 Bd7 Qhh4 Ne8 Bd6+ Kd8 Bb7 Ne3 Nb5 Nfd5 Bc6 Kc8 Kh5 Rd1 Bh2 Bd2 f4 Be1 Ra7 Rab1 a1R Rd2 Qf1 Bg3 R1a5 Rbd1 Qf2 Ra1 Rf8 Rh1 Rf6 h8Q+ Rh6 Rhd1 Nd4 Rb1 Ba4 Rb2 Bb3 Ra2 R5a6 Ra5 Rh7 Rc5 Ra5 Rd3 Rh6 Qh7 Nb5 Qf5+ Qg5 Qf6 Qh4 Qfb2 Rb7 Qe2 Rh7 Qbc2 Rh8 Bc6 Re7 Bd7 Kg5 Bc6 Qh6 Nc3+ Kg6 Rd8 Qg5 Kb8 Rh3 Kc8 Kh5 Ncd5 Qh4 Bd7
8/RNq1NPnk/2Q2K2/b1pb1NQ1/BR1r1q1n/P6r/pB3p1b/B3Q1n1 b - - 0 1 illegal: No proof kernel
4B1q1/1RR2p2/3rnp1k/RQ2Q1nQ/5b1r/K2bBn1N/pP1N2Pq/1q5N b - - 0 1 legal: proof: f4 d5 a4 g5 c4 b5 cxd5 Bg7 axb5 Bf8 h4 gxh4 f5 Be6 f6 exf6 Rh3 Bf5 Rh1 Bc8 d4 h5 Kd2 a5 Kc2 c5 Kb3 c4+ Ka4 c3 e4 c2 e5 h3 e6 h2 e7 h4 d6 h3 d5 Rh4+ Ka3 a4 b6 Nd7 b7 Ne5 b8Q Nh6 Ne2 Ra6 Qb7 Bf5 Be3 c1Q Nd2 Nf3 Ng3 Qb1 Qb5+ Rc6 Rg1 Bd3 Nh1 Nf5 Ra2 N5d4 Ra1 Ne1 Qg4 Ne6 Be2 Nf3 Rc1 Bh6 Rc3 Bf4 Rc4 Kd7 e8Q+ Kc8 Qe7 Qg8 d7+ Kc7 Qd6+ Kd8 Qe5 Ke7 d8R Rd6 Rd7+ Ke8 Rcc7 Kf8 Qgf5 Kg7 Qg4+ Kh6 Re7 Rb6 d6 Ra6 d7 Rd6 Ng3 h1Q d8N Qh2 Nh1 Qg3 Bd1 h2 Bb3 Qh3 Bd5 Qg3 Bc6 Qh3 Be8 Qg3 Nf2 h1N Rb7 Qh3 Rec7 Ng3 Nh1 Ne4 Ra2 N4g5 Ra1 Nf8 Ne6 Qh2 Ra2 Bg3 Nf4 Nfe6 Nh3 Bf4 Ra1 Qc2 Rc1 Qb1 R1c6 Bg3 Ra6 Bf4 Kb4 a3 Ra5 a2 Kb3 Qh7 Ka3 Qg8 Qh5+
r3qb1B/q3pbnB/1rQ3n1/1QN2Rk1/2QP2b1/1Pp2R2/2p2KnR/2N1B3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 f4 Kf7 d4 Kf6 g4 c5 b3 a5 b6 h5 b7 a4 Bd2 h3 Bd3 a3 Kf1 a2 Ne2 h2 Kf2 h4 Nbc3 h3 Qc1 Qe8 Na4 c3 Be1 c4 Nc5 Nc6 b8Q Ne5 Qb5 Rh6 Rb1 a1Q g5+ Kf7 g6+ Kf6 g7 Ng6 Qc2 Qa7 Nc1 Bd7 Rf1 h1B Rb2 h2 Ra2 Bd5 Be4 Kf7 f6 Bg4 f5 h1N+ Kg1 Nh4 Rf3 Ng3 Kf2 Ng2 Rb2 Rg6 Bd3 Nh6 Ra2 Kg8 f7+ Kh7 f6 Nhf5 g8Q+ Kh6 Rb2 Nfh4 Bf5 Bg7 f8B Nh5 f7 Rb6 Bh7 Kg5 Qe4 Bde6 Qec6 Ng6 Ra2 Bh6 Bg7 Bd5 f8R Bf7 Re2 c2 Bh8 c3 Rd2 Bd5 R8f6 Bf8 Qge6 Ng7 Qee2 Bd7 Qec4 Bf7 R6f5+ Kh4 Rh5+ Kg4 Rh2 Kg5 Re2 Bde6 Re4 Bf5 Ref4 Bg4 Rf5+
3r2b1/2r1prB1/nRRQpp1b/1K1BP1Q1/4Q3/P1N1b1NN/1Bk2n1q/6q1 b - - 0 1 illegal: No proof kernel
5q2/1nr1pkNr/P4n2/bN2RPbR/1pqn1R2/2N2B1Q/1p5Q/2Bb2KQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 c5 g4 h5 a4 b5 f4 c4 Kf2 h3 g5 h4 g6 c3 d6 c2 d5 h2 g7 b3 a5 b4 f6 b2 a6 h3 d7+ Kf7 d6 Rh6 Be2 Rh7 Na3 Nc6 Nb5 Nd4 Ra5 Ra7 Bf3 Rc7 Ne2 Qe8 d8Q Bg4 Re1 h1Q d7 h2 Qc8 Qd8 Nec3 Qf1+ Ke3 Qd3+ Kf2 h1N+ Kg1 Nf2 Re5 Ne4 Qe2 Qc4 Qh2 Qe8 d8R Bh5 Qch3 Nc5 Rdd5 Nb7 Rc5 Kg6 f7 Nf6 g8Q+ Bg7 Qh8 Qf8 Rf5 Bh6 Rce5 Bg5 Qh1 Qg8 f8N+ Kf7 Ne6 Qf8 Ng7 Bg4 Bd2 c1B Be3 Bd2 Q3h2 Be1 Bc1 Bg3 Qh3 B5h4 Rh5 Bg5 f5 B3f4 Re4 Be5 Rf4 Bd6 Bc6 Bd1 Bf3 Bc5 Na3 Bb6 Re5 Ba5 Nab5 Qa8 Qd8 Qb8 Qd7 Qf8 Qd6 Ne6 Qd2 Nd4 Qdh2
QBqQ2K1/n1nP1pP1/1q1p1p2/n2b4/N1r3B1/4R1N1/3bB1N1/QqR1r2k b - - 0 1 illegal: No proof kernel
3n1N1K/3p2rN/Q1R3Q1/1R3b2/2B2P1b/pP1NB2n/1k2pBb1/qr1q1r1Q b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 a5 g4 e5 c4 h5 c5 h3 b6 d3 b7 h2 b3 a4 f3 d2 c6 a3 c7 h4 Nc3 h3 Na2 Nh6 Nb4 Nc6 b8B Rg8 Ba7 Bb7 c8Q Nf7 Bb5 Be7 Nd3 Rb8 Qf1 Ba8 Qa6 Ng5+ Kd5 Rc8 Bf2 e4 f4 e3 Qd1 e2 Nf3 Rc7 Qf1 d1Q Bce3 Bb7 Rg1 h1B Rc1 h2 Qe1 Nh3 g5+ Kf7 g6+ Kf6 Rg4 Bg2 g7 h1R Rg5 Kf7 Rh5 Bh4 f6 Kg6 f7 Qf6 Qg1 Qa1 f8N+ Kf6 Qh2 Rf1 Qh1 Rc8 Kd6 Nd8 Ng5 Kf5 Ngh7+ Ke4 Rg5 Bd5 Ke7 Be6 Rc2 Rc3 Kf6 Bg4 Rc1 Rc2+ Kg6 Rb2 Rc6 Rb1 Bc4 Be6 Kh6 Bg4 Rb5 Bf5 Ng6 Rf8 g8Q Rf7 Ngf8 Re7 Qg6 Rf7 Bc1 Re7 Bg3 Kd4 Be3+ Kc3 Bgf2 Kc2 Qf7 Kc3 Kg7 Kc2+ Kg8 Kc3 Qg6 Rg7+ Kh8 Kc2 Ne5 Kb2 Nd3+
3N4/KRP2r1p/Q1B2nNq/5Br1/pR1p1bb1/N3B1qQ/1k3PR1/1qn2n2 b - - 0 1 illegal: No possible last move, all moves rejected
2q4b/2P1p1r1/N1QR3N/3nP3/2KQ1b1B/pR2Bb1n/1qpN1R2/2Bqk1r1 b - - 0 1 illegal: No proof kernel
qQ1NB1nb/1P1Q1pn1/1p1p1bBk/3KN3/2r2P1B/4Nnb1/4qQ2/RrR5 b - - 0 1 legal: proof: d4 h5 c4 e5 dxe5 b6 g4 hxg4 c5 Bb7 c6 a5 b4 axb4 cxb7 Rh5 Qa4 Rh3 Qd1 Rh8 Kd2 c5 Ke3 g5 Ke4 d6 a4 g3 h4 g2 e6 g4 h5 c4 e7 c3 a5 g3 a6 b3 h6 b2 h7 c2 a7 Nd7 Nd2 b1N Nc4 Rc8 a8N Nd2+ Kd5 Nc5 e4 Bg7 e5 Bf6 Qf3 Ne6 Bd3 Ng7 Ne3 Rc4 Bg6 Qb8 Bb2 c1B Bd4 Bb2 Nc7+ Kd7 e8B+ Ke7 e6 Kf8 Qe2 Qa8 Nf3 g1B Ne5 g2 f4 Bh2 Rhc1 g1Q Qf2 Qf1 Bc3 Nf3 Be1 Nh5 e7+ Kg7 Ne6+ Kh6 Nd8 Bg3 Bc6 Qe2 e8Q Ng7 Qd7 Bd4 Qg1 Bh2 Bh4 Bg3 Qf2 Ne7+ Ke4 Re8 Bb5 Ng8 Kd5 Bb2 Qc8 Re7 Be8 Rec7 Qg4 Rb4 Qd7 Rcc4 Ndc6 Bd4 Nd8 Rb1 Nd3 Bg5 Nc6 Be5 Bh5 Ne6 Bg6 Bg7 Nde5 B5f6 Bf5 Kh5 h8Q+ Nh6 Qf8 Ng8 Bg6+ Kh6 Qc8 Ned4 Qe7 Nf5 Qed7 Bh8 Qb8 Ng7 Nd8
KQ1N1b2/P5r1/1qnN1B1R/3p2qB/1br4R/pQ4qR/2p1PQkn/3b2B1 b - - 0 1 illegal: No proof kernel
N2B2Rq/P2R2nP/Kb2Bpbk/4rQN1/1p1R4/1q1r1npQ/b1B5/1N4n1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 g5 d4 c5 Kd2 b5 Kd3 f3 a4 g4 e4 b3 e5 b2 e6 f2 d6 g3 h6 b4 Kc4 Ne7 Kb5 c4 h5 c3 h7 c2 d5 Qc7 d7+ Kd8 h6 Ra6 a5 Qe5 Qf3 Qd6 Bc4 f1Q Nh3 Qd3 Qf5 Qe5 Rd1 Qb3 Ng5 Rd6 a6 Nbc6 a7 Nd4+ Ka5 Rg8 h8Q Nf3 Rd4 f6 Bf4 c1N Bd3 Rg7 Bc2 Ne2 h7 Rg6 Qh3 Nf5 e7+ Kc7 d8N Kd7 e8B+ Ke7 Ba4 Neg1 Nde6 Ng7 Nc7 Be6 Na8 Rd7 Kb5 Qb8+ Ka6 Rh6 Qf5 Rh5 Bc7 Bf7 Bc6 Bg6 d6+ Ke8 Bd5 Rd8 Nd2 b1B Be6 Ba2 Rd1 Rd7 Nb1 Rd8 Ne4 Rd7 Qh3 Re5 Ng5 Rd8 Bg8 Be7 d7+ Kf8 Bb6 Bc5 Be6+ Ke7 Ba5 Bb6 Qg8 Rc8 R1d2 Rc3 Qc8 Rd3 d8R Ne2 Qc6 Neg1 R8d7+ Kf8 Qe4 Nh5 Rd8+ Kg7 Qef5 Kh6 Rh8 Qf8 Rg8 Qg7 Rd7 Qh8 Rd1 Be3 Bd8 Bb6 Qhg4 Ng7 Rd2 Rc3 R2d4 Rd3 Qh3+
2Q4N/p2B1n1Q/br1BP2Q/b2Rr2q/1q6/R1RrpN1P/qnN1p3/2k1K3 b - - 0 1 illegal: No proof kernel
1nq5/pb1NBbP1/N1q1R1n1/R2Q1B1B/QKp1r3/p1P1N1r1/2qR4/4r1k1 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 e5 dxe5 f5 a4 bxa4 Kd2 Bh6 Ke1 fxg4 Be3 g3 Bd2 g4 Bc1 Bg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 Kd2 Ke7 Kc3 Ke6 e4 d5 b4 h5 f4 c5 g6 c4 g7 h4 b5 d4+ Kb4 h3 c3 g2 b6 g3 f5+ Kf7 b7 d3 f6 Ke6 f7 h2 f8R d2 Nf3 g1Q Bd3 g2 Na3 Ne7 Re8 Qc7 Nc2 Qc6 Ne3 Rh3 Ba3 Rg3 Rd8 Qf2 Re1 g1R Bc2 h1B Rd4 Nd7 b8N Ng6 Na6 Nb8 Re2 Re1 Rd8 Kf7 e6+ Kf6 e7 Bb7 Ne5 Kg5 e8Q Kh4 Nd7 Kh3 e5 Kh2 e6 Bd5 e7 Kg1 Bf5 Bf7 Qg8 Qc8 e8B Qf3 Qb3 d1Q Rd2 Rf1 Rd6 Re1 Re6 Qg4 Ra2 Qc6 Rd2 Qc2 Rc8 Q6e4 Rc5 Qc6 Ra5 Qh3 Qf8 Qg4 Qd6 Qh3 Qd5 Qg4 Bb2 a3 Qa4 Qf3 Bc1 Qc8 Qdb5 Qfc6 Qe5 Kh1 Qd5+ Kg1 Re5 Qd8 Re4 Bg8 Re7 Nf8 Bh5 Bf7 Rd4 Ng6 Nd1 Qg8 Bg5 Qd8 Ndc5 Nd7 Rd2 Rc8 Ne3 Nb8 Bf6 Rc7 Re8 Re7 Nd7 Re4 Re6 Qdc8 Be7
2KB3q/p2Qr1PN/kr3pBR/1b2Q2Q/n3B2N/2b3P1/q1Rq1p2/N4n1b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 Kf3 d5 b4 Kd7 e4 Kc7 c4 Kb6 c5+ Kb7 c6+ Kb6 g3 h4 c7 h3 g6 h2 e5 d3 e6 d2 Kg4 f3 Kf5 f2 g7 d4 Ra2 d3 Rc2 Rh6 Qh5 d1B Na3 d2 Bg2 Nf6 Nf3 Nh7 Nh4 Qe8 Be4 Bd7 c8Q Na6 Ke5 Nf6 e7 B1g4 Kd6 d1Q+ Bd2 Qe1 Bg5 Nd5+ Bf6 Bc6 Qd7 Be6 Bg5 Ne3 Bf6 Nf1 Bg5 Nc7 Bf6 Kb7 b6 Ka6 b7 Bed5 b8Q Ne6 Bg5 Nc5+ Kc7 Na4 b5+ Ka5 b6 Ka6 b7 Bb5 Qbc8 Qd2 b8N+ Ka5 Qf5 Rb6 Nd7 Rab8 Qd8 Ka6 Nf6 R8b7+ Kc8 Qc6+ Qc7 Qc4 e8B Bb4 Qd7 Bc3 Nh7 Qa2 Bd8 f6 B8g6 Bdc6 Qce5 Bd5 Qdd6 Re7 Qd7 Bdc6 Rb2 Ba8 Nc2 Bac6 Na1 Bd5 Rg1 h1Q Rc2 Qh2 Bd3 Bh1 Bde4 Qh3 Rg2 Qhe6 Rh2 Qg8 Rh3 Qh8 Qf3 Qe3 Nf5 Ree6 Rh6 Re7 Qh5 Qd2 Nh4
4Q3/2B1B1n1/n2qNPQ1/Rrr1p1n1/k1nb3N/3R1bpp/K2nP3/2N1Q1B1 b - - 0 1 illegal: No possible last move
1rb4R/K2b2kq/1B1P3R/2bQpp1P/NN1b2Q1/N2Qb1R1/pn3r2/5n1B b - - 0 1 illegal: No possible last move, all moves rejected
4NRr1/bK1Rp1p1/3Q2r1/2B4R/4Pp1N/r1q1r3/b2B1nNP/Qk3nrQ b - - 0 1 illegal: No possible last move
2R1K1Rn/2pB4/N2b2k1/Pr1bQ1p1/n1q1n3/p2RnP2/2N1Bn1B/3r1QQ1 b - - 0 1 illegal: No proof kernel
8/1ppb1PNN/3b3K/5Q1Q/RRB1b1pn/bN1R2rk/1b2nP1Q/1q2r1B1 b - - 0 1 illegal: No possible last move, all moves rejected
2nbrn1N/Q4r2/K2bq3/3nN3/B4Qbp/1RnQpB2/NPpRPB2/k7 b - - 0 1 legal: proof: g4 b5 c4 g5 h4 d6 a4 d5 axb5 f6 cxd5 gxh4 g5 f5 Qa4 Nf6 Qf4 Ng8 Qg4 fxg4 d4 h3 Kd2 Kf7 Kc3 e5 Kc4 a5 f4 c5 f5 h5 b6 h2 Kb5 c4 d6 g3 d7 c3 b7 h4 d5 g2 d6 a4 f6 Ke6 f7 Kd5 g6 a3 g7 e4 Ra2 Rh7 Bf4 Ne7 g8B Qe8 Nf3 g1B Bg2 Bb6 Bg5 e3 Ne5+ Kd4 Rf1 h1N Bf3 Ng3 Bf4 Ne4 Bg3 Rg7 Ra1 a2 Bf2 Ba5 Rc1 Rh7 Rc2 Bb6 Na3 Ba5 Rac1 a1N Nb1 Rg7 Nc6+ Kd5 d8N Nd7 Ne5 Rb8 Ka6 Kd4 Nd3 Kc4 Ne5+ Kb3 Rd2 Ka2 Bh7 Nc2 Bg8 Ndf6 d7 Ka1 Bh7 Nd4 Bg6 Ng5 Bc2 Nge4 Ba4 Ne6 Rcc2 Bb6 Rd3 Rh7 Rcd2 c2 Nc3 Ba5 Na2 Bb6 Rb3 Nc3 Ndc6 Ba5 Ng6 Bb6 d8Q Bd7 Qc8 Nfd5 Nce5 Ba5 Qc6 Rd8 b8Q Nc8 Be4 Bd6 f8Q Qe7 Qbb5 Re8 Qcc5 Bd8 Qf4 Rf7 Qd3 Nf8 Qa7 Bg4 Bf3 Qe6 Nh8
B7/1b1NB2B/8/k1r5/1pRK1nNr/1Q1R3P/Pp1bNpbq/bQ1nrR2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 b3 d4 Kd7 e4 g5 h6 c5 h7 Kc7 e5 Kb6 e6 f5 d6 c4 d5 c3 d7 c2 d6 g4 e7 f3 Ke3 f4+ Ke4 g3 e8B g2 h3 Ka5 Nd2 b5 Rh2 b4 Bb2 c1B Kd5 Na6 Ne4 Nh6 Bg6 Qc7 d8Q Nc5 d7 Ne6 Nc5 Nf5 Bf6 Bg7 Be7 Ne3+ Ke4 Ba6 Qg8 Rc8 d8R Bc3 Rb1 Ba1 Rd3 b2 Nd7 Qd6 Rh1 Rc5 Ne2 g1R Bg2 Bd2 Rc1 Re1 Qc2 Qb8 Qb1 Nd1 Bf5 f2 Rf1 f3 Qf7 Qh2 Bh1 Nf4 Kd4 Ng6 Bg2 Nf4 Qb3 Bc8 Rc4 Ba6 Rg1 f1B Rh1 f2 Ba8 Bg2 Rf1 Rf8 h8N Rb8 Ng6 Rh8 Nge5 Bab7 Ng4 Rh4 Bh7
1Rnr1q2/1R2QN2/3PnB2/K5nk/p1P2bpB/2RN1n1N/1p1bQ3/1r3B1b b - - 0 1 illegal: No proof kernel
nrnNR3/kr1q3B/3pr1bP/RQ6/3Q1K1p/n3P3/N1QBRb1p/4n1B1 b - - 0 1 illegal: No possible last move
2bn2Rb/5N2/2PN1B2/NpKpQrRq/P6r/Rp2n2b/2n1b1B1/3k1Q1B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kd3 h5 Kc4 b5+ Kc5 b3 c4 h4 g4 d3 f4 d2 a4 h3 f6 Ke6 f7 h2 g6 Rh5+ g5 Kf5 g7 Ke4 f5 Ke3 f6 Kf2 Ra3 Ra6 Nc3 Ra8 Nge2 Rh3 g6 Qe8 Bb2 Nh6 g8N Nf5 g7 Ne3 Rg1 h1B Nd4 Bg2 Qa1 d1B Nc6 Ke1 Nh6 Rh4 g8B Bg7 f8R e5 f7 e4 Na5 Bh3 Rg5 Nc6 Bg2 Bh8 Bh7 d5 Rfg8 Ra6 f8Q Nd8 Nf7 Rf6 Qe7 Rf5 Qe5 Kd2 Qb1 Be2 Qf1 Qe6 Bh1 Qh6 Bg6 Qh7 Bh5 Kc2 B5f3 Qh5 Bfg2 Kd2 Kb6 Kc2 c5 Kd2 c6 Kc2 Qf3 Kd2 Kc5 Kc2 Nb1 Kd1 Nd2 Nf1 Qec3 e3 Qf2 Bc4 Qf4 e2 Ne4 e1N Ned6 Ne3 Qf1 Bd3 Qf6 Be2 Qe7 Bf3 Bf6 Be2 Qf4 N1c2 Qee5 Beg4 Qf2 Be2 Qf1+
1R2NR2/b1qN2P1/1P1rNn1r/1pbQ3B/1Qb2p1p/1b2k1n1/1KR1n2Q/6B1 b - - 0 1 illegal: No possible last move
Q3rr2/N2Bk1P1/P6q/np1Rbp2/rp1r1nQ1/B7/1N1Q1Kn1/1b1BR1R1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 c5 g4 h5 a4 b5 e4 f5 d6 c4 g6 c3 a5 c2 a6 h4 g7 f3 d7+ Ke7 d5 h3 g5 h2 d6+ Ke6 e5 Kf7 g6+ Ke6 Nd2 Bb7 Be2 Qf6 d8Q Be4 d7 Nc6 Nc4 Na5 Kf2 Ne7 Qd2 Nd5 Ba3 c1R Bd1 Bd6 Nb2 Nf4 Ne2 Rf8 Rg1 h1R Rb1 Rh7 g8Q+ Rhf7 g7 Qh6 Qg5 Rae8 Qg4 Ke7 e6 Be5 d8R Rf6 Ra1 Bb1 Nd4 Rc2 Rd5 R6f7 Ke3 f2 Re1 f1N+ Kf2 Ne3 Nc6+ Kf6 e7 Neg2 Na7 Ke6 Nc4 Ra2 Qh8 Rf6 Nb2 Kf7 Rg1 Rc6 Re1 Rc4 Rg1 Rd4 Re1 Rc8 e8B+ Ke7 Bd7 Rce8 Rg1 Qh3 Qh6 Qh1 Qc6 Qh6 Qa8 Qb6 Bb3 Bd3 Rae1 Bb1 Bd1 Qc6 Nc4 Qg6 Bc1 Ra4 Ba3 Qh6 Nb2
Rr5q/B4rp1/2N1R2N/1P1p2K1/2bNp3/r1n2PnQ/R1n2b2/n1kB1QQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 b4 Ke5 c4 Ke4 f6 d5 h5 e5 c5 a5 b6 g3 f7 g2 b7 d3 h6 a4 h7 a3 b5 a2 c6 Ra7 c7 Kd4 Nf3+ Kc4 Ke3 g1R Nc3 e4 Kf4 Bc5 f8Q Bg4 c8Q Ne7 Kg5 Nbc6 b8R Ra3 Be3 Nb4 Nd4 Nc2 Be2 Rf1 Nc6 Kb3 Ra8 Kb2 Rh6 d2 Re6 Nf5+ Qf6 Re8 h8N Ng3 Nf7 Bh5 Qe1 d1N Nh6 Ba7 Bf3 Bb6 Ne2+ Nc3 Ned4 Rf8 Rc1 a1N Bd1 Be2 Qd7 Bc4 f3 Rh1 Qg1 Rf7 Qf1 Qh8 Qg6 Rh4 Bf2 Rhf4 Qc8 Rb7 Bg1 Rb8 Qd7 Nb3 Ra1 Rf7 Ra2+ Kc1 Qf5 Na4 Q5h3 Nc3 Bf2 Nba1 Qd6 Nh1 Qdh2 Ng3 Qhg1 Rf4 Ndf5 Bd4 Nfe7 Rf7 Nef5 Be5 Bb6 Bd4 Ba7 Bf2 Nfd4
n3N3/1RnPnpK1/1N2QP1p/RB2bN2/3qb1Q1/p1rb3R/1B6/n2Qr2k b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 a5 f4 a4 c4+ Kd4 g4 e3 c6 Ke4 d4 h3 f5 e5+ f6 h2 c7 e2 c5 e1N b6 Bf5 c8Q Nd7 b7 Nd3 b8R Bd6 c6 Ne7 Kh6 Nb4 c7 Nb6 g5 Re8 d5 Na6 Kg7 h6 Ne2 Kf3 g6 e4 Bb2 e3 Rb7 Bd3 Nbc3 Be5 Ng3+ e2 Qe6 Rc8 d6 Na8 Nb5 Kf2 Ra2 e1N Nf5 Nc2 d7 Na1 Be2 Kg2 Nbd6 Rf8 Rf1 h1B Rf3 Re8 Bf1+ Kg1 Rh3 Bhe4 Ra3 Rb8 c8N Qb6 Ra2 Qd4 Nb6 Rbc8 Ra3 Rc1 Ra2 Rec8 Ne8 R8c3 Ra3 N6c7 Ra2 Bc2 Bb5+ Kg2 Kh8 Bcd3 g7 R1c2 Kh7 Re2 Ra3 Re1 g8Q+ Ng6 Kg7 Ne7 Rb3 a3 Rb4 Bd6 Ra4 Bh2 Ra5 Kh1 Qh7 Qe5 Qg6 Qd4 Re3 Bd6 Qgg4 Be5 Rh3+
K1k3b1/Q1p1P2n/4p3/b1N2BPR/4Nb1n/2brpnB1/1q2rQ2/2BNR1Q1 b - - 0 1 illegal: No proof kernel
1r4r1/Np4Rb/6n1/2k2np1/R3q1N1/5QPB/Pbp1nbQ1/NR2QBnK b - - 0 1 illegal: No extended proof kernel
4B3/1pr3k1/4RNnq/4pQb1/K1NRP2p/Pn1r4/Qr1b1rRB/3N1nQ1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 h3 fxg4 Nc3 g3 Nb1 g2 Qb3 g5 Qc2 g4 Qb3 g3 Qd1 Bg4 hxg4 Qd6 Bb2 Qd7 Bc1 Qd8 d4 Kf7 Kd2 c5 Kc2 h5 Kb3 e5 e4 h4 f4 Ra4 g5 Nf6 g6+ Kg7 d6 Ra6 d7 Re6 d5 c4+ Ka4 b3 f5 c3 d6 b2 Bb5 c2 Ne2 g1R Rh2 g2 Bf4 c1B Nec3 Re7 Nd2 b1N Nc4 Qb6 d8R Na6 Be8 Rc7 d7 Ng8 a3 Nd2 Rb1 Qd6 Rb6 Nf1 Qd2 Be7 Qa2 Rh5 Nd1 Bd2 Bg3 Beg5 f6+ Kh8 f7 Ne7 f8N Kg7 Nh7 Rh6 Nf6 Nc5+ Kb5 Nb3 Ka4 Rh1 Bf4 g1R Rg2 Rh3 Bh2 Rh8 Rc6 Rf8 Rb6 Kh6 g7 Rd3 g8Q Ng6 Qe6 Kg7 Qf5 Qe6 Rd6 Rh1 Rd4 Qb6 Ra8 Rg1 d8Q Qd6 Ra6 Qe6 Re2 Rg2 Qd6 Rff7 Qc5 Qd6 Rc6 Qf8 Rcd6 Qh8 Re6 Qh6 Re3 Rf2 Rg3 Rfd7 Qa7 Rd5 Rg2 Rdc5 Nd6 Rc2 Nc4 Rb2 Rdd6 Rff3 Qg1 Rf2 Rd4
2N1NnB1/P2R1ppR/2N1q1r1/1Rk1B3/2r1QQn1/1br2P2/5bBp/K2n1n2 b - - 0 1 illegal: No proof kernel
b4qNn/p1b2Q2/N1B1Q2r/r5Nn/Bp5p/PQ2n1r1/1R1R1PnK/1B2k3 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 h4 gxh4 bxc5 Bh6 Qd2 Bg7 Qd1 Bf8 e4 f6 e6 Nh6 e5 Ng8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 e8Q h3 c4 b5 g4 h5 a3 b4 g5 h2 e7 e4 g6 e3 g7 e2 Qc2 Rh6 Nc3 Nf6 Nf3 Bb7 Qf7 d5 e8Q+ Nbd7 Ra2 d4 Na4 d3 Rb2 Bd6 Qee6 Ne5 Bg2 Ng6 Qc3 Rc8 g8N h4 Qc2 Nh8 Ng5+ Nd5 Qc3 Qf8 Qb3 Ba8 Be4 Rc7 Rf1 h1R Rg1 Kb7 c6+ Ka6 c5 Kb5 Rf1 Rc8 c7 Rg1 c6 Nf4 Nc5 Nh5 Na6 Rg3 Bf5 Rd8 c8B Bb8 c7 Rd5 Bb7 Re5 c8B Bc7 Kd2 e1N Bf3 Rc5 Ke3 d2 Bb1 d1N+ Ke2 Ne3 Bd7+ Bc6 Be8 N1g2 Rd1 Rf5 Rd7 Ba8 Bb7 Nd1 Kf1 Nde3+ Kg1 Rd5 Qa4+ Kc4 Kh2 Kc3 Rd6 Ra5 Bd5 Nc2 Qb3+ Kd2 Ba4 Kd1 Be4+ Ke1 Rd2 Nce3 Bec6
r1BN1rB1/p2N2b1/2n1n1pn/2R3P1/2rqQ1P1/Qp3b1R/3k2rQ/2R2K1N b - - 0 1 illegal: No proof kernel
q1QB4/1n1nNnqN/4p3/pr2rBBp/2NQn2P/1k1R1P2/1b6/bKQR4 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 Bb7 e4 Bd5 f3 Be6 d5 fxe4 d6 Bg4 f4 Bf3 gxf3 cxd6 Qd3 d5 Qd1 d4 Kd2 Kf7 b4 Ke6 c4 a5 Kc2 h5 h4 d5 b6 g5 b7 d3+ Kb2 g4 b5 d2 c5 d4 c6 Kd5 c7 g3 c8N e3 f5 d3 f6 Kc4 f7 e2 b6 e1B Bh3 g2 Bd7 Nh6 Ne2 g1Q Bf5 Nd7 b8Q Bg7+ Nec3 Re8 f8B Nf7 Qa7 Rb8 b7 Qg5 Qc2 d1N+ Ka2 d2 Nd5+ Bc3 Rh2 Nb2 Nf6 d1N Nh7 Na4 Rd2 Qg7 Na3+ Kb4 Qg1 Bb2 Nc4 Nf2 Kb1 Ne4 Qd4 Nac5 Qd1 Bg3 Q1g1 Be5 Qe1 e6 Be7 Rg8 Qd1 Qe8 Bd8 Rf8 Q1g1 Kb3 Ne7 Rg8 Ra2 Ba1 Rd1 Qef8 Bg5 Qe8 Qd2 Beb2 Qgd4 Rf8 Bb6 Qc8 Bd8 Qc6 Qf4 Qa6 Qc1 Qa8 Bc7 Rfc8 Bd8 Rc6 Qdd2 Rb6 Qd4 Rc8 b8Q Nb7 Qc7 Rb5 Qb8 Rcc5 Qc8 Bc3 Rf2 Re5 Rfd2 Bcb2 Rd3+
r2qr3/1Qn1QK2/1N1p1R2/p2BB2k/1Qn3N1/2p3Rb/2P1P1bq/B3q1Nq b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 e5 axb5 exd4 Ra2 Be7 Ra3 fxg4 Ra1 g3 Nh3 g4 Ng1 Bg5 hxg5 Ke7 Ra5 Kf7 Ra1 Ke8 Kd2 Kf7 Kd3 Kg6 Kc4 h5 Kd5 a5 f4 c5 b4 d3 f5+ Kf7 b6 c4 g6+ Kg7 b5 h4 b7 h3 f6+ Kf8 b6 c3 g7+ Kf7 Na3 Kg6 f7 d2 f8Q h2 Nc4 g2 Qb4 g3 Bb2 Nc6 b8Q Kg5 b7 Kh5 Nb6 Nge7+ Kd6 Re8 g8N Nd5 Nh6 Nc7 Ng4 Ne5 Rb1 Ra6 Ba1 Ra8 Qc1 d1Q+ Qd2 Nd3 Qe3 Qe1 Qe7 Nb2 Ke5 Nc4+ Kf6 Rg8 Kf7 Re8 Nh3 g1Q Bg2 Qgf2+ Bf3 g2 Rg1 Qh4 Bd5 h1B Rf1 g1Q Rf6 Qgg3 Ng1 Qgh2 Rd1 Be4 Rd3 Bg2 Rg3 Qh1 Qa7 Q4h3 b8B Q3h2 Qb7 d6 Ba7 Kg5 Na4 Bf5 Bd4 Kh5 Nb6 Bc8 Be5 Bd7 Ne3 Bdh3 Ng4
3rq3/2R2R2/Kp1b1P1N/1B2Q1QN/4rn1P/1Q2Bkp1/1p2n2q/R1Nbq2q b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 h4 e5 a4 c5 f4 g5 d4 b3 f6 g3 d6 b2 d5 g4 d7 c4 a5 g2 f5 b6 f7 g3 a6 c3 d6 c2 a7 Na6 Nh3 g1Q Be3 c1Q Qb3 Qe8 Nc3+ Kf3 Ne2 e4 Nhf4 Nb8 Nh5 Nc6 d8N Nf6 d7 Bd6 f8R Nd5 Nf7 Nf4 d8Q Qh2 Qg5 Qd1 f6 Bg4 Rg1 Rd8 a8Q Nd4+ Ka6 Rh7 Nh6 Re7 Nc1 Nde2 Qb8 Qd5 Bd4+ e3 Rf7 Re4 Bc5 Nd4 Bb5 Nde2 Rg2 Qd1 Qc7 Qdh1 Bd4 Nc3 Rg1 e2 Be3 e1Q Qe7 Nce2 Qee5 Be6 Rg2 Bc4 Rg1 Bd3 Rg2 Bc2 Rg1 Bd1 Rg2 Ng1 Rc2 Nge2 Rcc7
Bn1K1bB1/1N5p/b7/B1QpPbR1/1P1rNQp1/5rq1/bq1n2k1/3QR2R b - - 0 1 illegal: No proof kernel
1qr3N1/3pB1kB/nr1Np3/R1R1N1Rb/Kb6/3P1P2/p3q1Bq/Q1q1Q2n b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 g4 Kf7 c4 h5 b6 a5 d3 e3 c6 h3 c7 e6 c5 e2 Kd2 e1Q+ Kc2 h4 Kb3 h2 g5 h3 g6+ Kf6 g7 Be7 c6 Qe2 b7 Na6 b8Q Qb2+ Ka4 Qa2+ Ba3 Bb4 Qe1 Qe2 Nd2 Bb7 c8B Ne7 g8N+ Kg7 c7 Bf3 Ne4 Nf5 Nd6 Ng3 Qa7 Rb8 Bg2 Rb6 Bb7 Bh5 Nf3 Qb8 Rg1 h1Q c8R Qh2 Ne5 Nh1 f3 Qa2 Ne7 Qe2 Be4 Rf8 Ng8 Re8 Rc5 Rc8 Kb3 a4+ Kc4 Ba5 Bh7 Bd2 Bb4 a3 Kb3 Bc3 Ka4 Bd2 Ra5 a2 Rc1 Bc3 Ba3 Bb4 Rcc5 Qf4 Qa8 h2 Qa1 Qc1 Qe4 Ng3 Qe3 h1Q Qf2 Qh2 Qe1 Qh6 Bc1 Nh1 Bg5 Rd8 Bh4 Qc1 Be7 Rc8 Bh3+ Qg5 Rg3 Qa8 Bg2 Qb8 Bg6 Qgd2 Rg5 Qc1 Bh7+
1n2N1q1/n1PQr3/p1nR4/2qbpR2/kp1P2Q1/bNB2N2/1QB2n1r/4B1K1 b - - 0 1 illegal: No proof kernel
2q2Bk1/1p4rb/1Q1Q1r2/Nn6/R3B1n1/pPp1N1bQ/1P1qbR2/NK3B1b b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 Na3 g5 Nb1 gxh4 cxd5 Qd7 Qb3 Qh3 Qd1 Qb3 axb3 Bg4 Nf3 Bf5 Ng1 Bc8 g4 h5 e4 f5 d4 Kf7 Kd2 a5 Kc2 c5 g5 h3 e5 h4 d6 a4 d5 f3 d7 a3 d8Q c4 d6 f4 d7 f2 Rh2 c3 Qb6 f3 Nd2 Ra6 Kb1 Bd6 Nc4 Nc6 Ne2 Nf6 d8N+ Kg8 e6 Na7 g6 Rh7 e7 Rg7 e8B Bg3 Nd4 Nb5 N8c6 Ng4 Ne3 Bf5+ Ndc2 Be4 Rg2 h2 Na5 h1B Qdd6 h3 Bc6 h2 Rg1 Bd3 Be4 Be2 Bd2 Bg2 Bc1 h1Q Bd2 Qh6 Rh1 Qf4 Rh4 Bh1 Bc1 Qf8 Bd2 Qc8 Bc1 Rf7 g7 Bd3 Nf5 Re7 Bh6 Rd7 Ne3 Rf7 Bd5 Bh7 Be4 Rf6 Bg5 Rg6 Be7 Rf6 Bf8 Ra8 Bg2 f1B Bh3 f2 Bhg2 Be2 Bf1 Kf7 g8Q+ Ke8 Qg5 Kf7 Qf5 Kg8 Nc6 Ra4 Na5 Rc4 Qf3 Rc7 Qg2 Rcf7 Qh3 Rg7 Beg2 Nh2 Ra4 Ng4 Be4 Bd1 Be2 f1Q B2d3 Qg1 Bf1 Qg2 Kc1 Re7 Be2 Qc4 Rb1 Qc5 Na1 Rg7 B2d3 Bf3 Be2 Qc8 Kc2 Rgf7 Rf1 Rg7 Kb1 Qh2 B2d3 Qd2 Rf2 Bd1 Bf1 Bdf3 Rc4 Be2 Ra4
4b3/1p4qr/1RPN4/1Nn1Pp2/1bnBRBq1/1RNB3r/1n3Kp1/QnkQ4 b - - 0 1 illegal: No possible last move
QBK5/1p1np1br/1B1N1rr1/3p3b/Q1RPn1N1/P3k2q/4NrBQ/2R4q b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 b4 axb4 c3 bxc3 gxh5 Ra4 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 h4 Kd4 f4 c5 h6 g5 a3 d5 h5 c2 h7 c4 h6 c3 Ne2+ Kd3 Rh4 Qb6 Bg2 Nd7 f6 Qc7 Kf5 g4 Ke6 g3 f5 Qb8 f7 Qc7 f6 Ra4 Rc4 Bg7 f8N Qc5 f7 Be5 Ng6 Qe3 f8Q Ngf6 Qe8 Rf8 h8B Ne4 h7 Rf2 Bf6 Bd4 Be5 Ra6+ Bd6 Rc6 h8Q Bg7 Qh2 Qf3 Bb2 c1Q Qa4 c2 Bd4 Qh1 Nbc3 c1R Nb5 Rd1 Rac1 Ra6 Bf1 g2 Bb6 g1R Bb8 Qfg2 Nd6 Qh3+ Nf5 Rg4 Bg2 Rdf1 Nd6 Rf7 Nh4 R1f2 Nhf5 Rg5 Qf8 Rg4 Nh6 Rh4+ Ng4 Rh7 B6c7 Rc6 Bb6 R7f5 Qa8 Rg5 Qff4 Rg6+ Kf7 Rf6+ Ke8 Rg6 Nb5 Rcf6 Kd8 Nf8 Nd6 Bf5 Qg1 Nd7 Kc8 Be6 Qfh2 Bf7 Qd1 Be8 Qda4 Bf7 Nc3 Be8 Na2 Ke2 d4 Kd2 Nc3 Kd3 Nh6 Ke3 Ne2 Rg4 Q4a6 Bh5 Qa4 Rgg6 Ng4+
B6N/BppN2P1/Pp2bq1k/4r1b1/q3nQ1B/1N1Q1Q1b/2R2rb1/1RK1n3 b - - 0 1 illegal: No proof kernel
1kbqNQR1/pq2R1p1/P1Qq1N1n/rr1B2P1/3n3K/Q4B1N/2p2Brn/8 b - - 1 2 legal: proof: g4 e5 h4 b5 d4 f5 c4 Be7 dxe5 Bg5 hxg5 fxg4 Qc2 bxc4 Qd2 Ba6 Qd1 Bc8 b4 d5 a4 Kd7 f4 c5 Kf2 Kc7 Kg3 h5 e4 c3 b5 d4 b6+ Kb7 a5 c2 e6 c4 e7 c3 e8N d3 e5 d2 f5 Qd7 a6+ Kc6 e6 Qd8 f6 Nh6 Kh4 g3 b7 g2 Nh3 g1N e7 Rh7 Qe2 d1Q f7 Q1d6 Be3 c1R f8Q c2 Nd2 Kd7 Qe1 Nc6 b8Q Nd4 Qb4 Rb8 Bc4 Rb5 Ne4 Rh8 Ra3 Ra1 Qec3 Kc6 Rb3 Raa5 Bf2 Rh7 Qa3 Kd7 N8f6+ Kc7 e8B Kb8 Bd5 Rh8 Qc6 Rh7 Nf4 Rh8 Re3 Ngf3+ Kg3 Nh2 Kh4 Rh7 Bd7 Rh8 Ne8 Rh7 N4f6 Rh8 Kh3 h4 Bg4 Rh7 Re6 Rh8 Bgf3 Rh7 Kg2 h3+ Kg3 Rh8 Qe7 Rf8 Kh4 Rf7 Qf8 Re7 Ree1 Re2 Bg3 Rg2 Re7 Nf1 Bf2 h2 Rg1 h1Q+ Nh3 Nh2 Rge1 Q6d7 R1e6 Qd1 Rd6 Qb7 Rdd7 Qd3 Rc7 Qd6 Rcd7 Qd2 Rd8 Qd3 Qf7 Qe5 Ba2 Qd2 Nc7 Nb3 Rg8 Qd8 Qf8 Qed6 Nce8 Nd4 Bad5
3Rb3/b2bPqnr/4q2Q/p1NqB3/1p1n4/P4pRQ/k1N2KNQ/2RB1n2 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 f4 e5 Be2 a5 Ba6 e3 Bb2 e4 Bf1 b5 Bc1 Ra6 Bd3 Re6 Bf1 Re5 fxe5 Qd4 Nh3 Qd5 Ng1 Qd8 c4 Kd7 d4 Kc6 g4 f5 g5 h5 e6 b4 e7 f4 g6 h3 g7 h4 Qc2 e2 Bb2 h2 Nh3 Nf6 g8R Bd7 Rhg1 h1N R1g3 Nh5 Na3 Ng7 Rc1 Rh7 Qd2 Be8 Nc2 Qd5 a3 f3 Nf4 h3 Ng2 h2 Rh3 Ng3 Kf2 h1B Qh6+ Kb7 c6+ Ka6 c5 Kb5 c7 Kc4 c8N Kb3 c6 Ka2 c7 Nc6 Nd6 Qf7 d5 Nd4 c8Q e1Q+ Kg1 e3 Nb7 e2 d6 Qd2 d7 e1Q d8Q Qg5 Qdc7 Qee6 Nc5 Qgd5 Be2 Nf1 Bc3 Qdd6 Rg3 Qdd5 Nh4 Bg2 Bd1 Bh3 Ng2 Qe1 Q7b8 Bhd7 Rh8 Qee6 Kf2 Nh5 Qbf4 Bg7 Qh4 Be5 Qh2 Ng7 Bb2 Bb8 Rg8 Nb3 Be5 Ba7 Rh8 Nd4 Rg8 Bc6 Rf8 Bed7 Rd8 Be8 Qa6 Bcd7 Q6h3 Qef5 Qg6 Qf5e6 Qgh6
4KR1B/1N2R1Q1/n5pQ/1Brp1Nbp/kP2R1qr/1q4P1/NBq1br2/b7 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 Nc6 h6 g6 Rh5 Nce7 Rh4 Nf5 Rh1 Ng7 hxg7 Qf6 Be3 Qb6 Bc1 Qd8 Kf2 h5 Kf3 f5 b4 d5 c4 Kd7 e4 a5 b6 Kc6 b7 d3 b8B d2 c5 a4 g3 a3 e5 a2 e6 Qd7 e7 Nf6 e8N Ba6 g8Q Be7 Be5 Ne4 Qg7 Bg5 Bcb2 Rf8 Rh4 Rc8 Qc1 d1Q+ Ne2 Kb5 c6 Nc5 c7 Qc2 Nd6+ Ka4 Nb7 Bc4 Qd2 Na6 Nd4 Rf6 Qe3 Rc6 Bf6 Rc5 Rg4 Re8 c8R Re4 Rf8 Qc8 Qf7 Bd3 Bh8 Qd7 Qg7 Be2+ Kg2 f3+ Kh3 f4 Nf5 f2 Nc3+ Kb3 Rd1 a1B Re1 f3 Na2+ Ka4 Rh4 Rec4 Re4 Qc8 Qec3 Qb3 Qh6 Qc7 Qcg7 Qf4 Bg2 f1R Re7 Rf2 Bf1 Qc1 Re4 Qcc2 Re7 Bd1 R1e4 Rd4 Bd3 Be2 Bc4 Rg2 Bd3 f2 Bc4 f1Q Bd3 Bc1 Kh4 Qfd1 Bc4 Rf2 Bd3 Rf4+ Kg5 Rf2+ Kf6 Bg5+ Kf7 Rdc4 Ke8 Rd4 R4e5 Rh4 Bc4 Qd4 R5e6 Qf4 Re4 Qg4 Bb5+
q1n5/rb3rNB/1R2PnR1/Q2Q2p1/Bp2kpPn/n2n4/1R1K1B2/q4Q1N b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 exf4 h5 g6 h6 Bg7 hxg7 Ra3 Rh2 Ra6 Rh1 Ra8 Rh6 f3 d4 b3 g4 Kd7 e4 Kd6 a4 b5 a5 c5 a6 f5 a7 b4 Ne2 f4 Be3 b2 Ra2 f2+ Kd2 c4 Na3 Bb7 Ng3 Nc6 Bd3 f1Q Bf2 Nce7 Nc2 Qg1 Qe2 Qa1 Qf1 Qf8 Ne3 b1N+ Ke2 Qd8 Rb2 Na3 Kd2 Qa5 Bc2 Nc8 Ba4 Qa6 Rh5 h6 Rg5 Nf6 g8B h5 Bh7 h4 e5+ Kc7 e6 Kd6 Rc2 h3 Rb2 h2 Nef5+ Kc7 Ne7 h1N Nef5 Rf8 d6+ Kb6 d7 Rf7 d8R Qa5 Nh5 Ng3 Nfg7 Nf5 d5+ Kc7 Ng3 Nh4 Rd6 Qa6 Rh5 g5 Nh1 Qa5 Rb6 Qa6 Rb5 Kd6 Rb6+ Ke5 Rh6 Qa5 Rg6 Ke4 d6 Qa6 Qg1 Qa5 d7 Qa6 d8Q Qa5 Bc5 c3+ Ke2 c2 Qf1 c1N+ Kd2 Qa6 Qd6 Nd3 Bf2 Rb8 a8Q Qa5 Qa6 Ra8 Qb5 Qa7 Qa6 Qb8 Qc5 Ra7 Qaa5 Qa8 Qd5+
3b2bB/QpQ2qR1/2b1Bn1p/2BRK3/4bNN1/2rpP1q1/2bP1QN1/2n3k1 b - - 0 1 legal: proof: h4 e5 c4 a5 b4 axb4 f4 exf4 Na3 g5 hxg5 d5 Nb1 d4 Rh4 Ra5 Rh1 Rd5 cxd5 Bg4 Qb3 Bd7 Qd1 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd3 Ke5 a4 c5 g4 h6 a5 b3 g6 f3 g5 Kf4 d6 Kg3 e3 Kf2 d7 f4 Ke4 c4 a6 d3 g7 c3 a7 b2 a8Q c2 g6 Qf6 d8B Nc6 Nc3 b1B Bh3 Nb4 Bb6 Na2 Bc5 Be6 Nge2 Be7 Rg1 Bd8 Bb2 c1Q Qc2 Qe1 Nd5 Nc1 Qa7 Qf7 Ke5 Nf6 g8N Rh7 Qc3 Bc2 g7 Rh8 Rg5 Qg1 Ra3 Qg3 Ra5 Rh7 Bg4 Kg2 Rg6 f2 Bf5 f3+ Ndf4+ Kh2 Rg4 Bd5 Be6 f1B Rb5 f2 Ra5 Nh5 Nf6 Bfg2 g8Q f1B Qf8 Bge4 Rg7 Bfg2 Ng4+ Kh1 Rb5 Nf6 Qca5 Rh8 Qc7 Bc6 Ba1 Bh7 Bad4 Bg8 Bb2 Bge4 Bc3 Qe1 Ng2 Qg3+ Nef4 Kg1 Rb4 Qg6 Rd4 Qe8 Rd5 Rh7 Rg6 Rd7 Rg7 Qf7 Qc8 Rc7 Qcb8 Rc8 Qc7 Be7 Bb2 Bd8 Rh7 Ra8 Qaa5 Qg6 Kd4 Nh5 Qfe7 Qe1 Qh4 Qf7 Qab6 Ra5 Qa7 Ra3 Qg3 Qf2 Qf3 Qg3 Qf2+ Kh1 Ke5 Rb3 Kd6 Ra3 Bf6 Rc3 Bh8 Nf6 Rg7 Qd7+ Ke5 Qf7 Qe2 Kg1 Qf2+
Q3n3/r3Rq1B/nKpn1Bnk/1bpBN3/R1PR1N1P/2npQ2r/8/Q1q5 b - - 0 1 illegal: No proof kernel
1RQ2N1n/rB3k2/3qb2n/3N3r/2PBn1q1/pp2p3/PNR4n/Q3nRBK b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Bg5 hxg5 Qb6 Bb2 Qc7 Bc1 Qd8 f4 e5 d4 b5 c4 a5 d5 h5 g6 a4 d6 a3 g7 h4 d7+ Kf7 f5 b4 f6 e3 c6 e4 c7 g2 Qd4 g3 Rh2 h3 Ne2 g1Q Nf4 b3 Nd3 e2 Nc3 g2 Nb2 Ra7 Be3 Nc6 Nd5 Nh6 g8R Ne7 Qc3 Qf8 d8B Ng6 Bd4 Be6 c8Q Qd6 B8b6 Rh7 Rc1 Nh8 Rh1 h2 Rc2 Qe3 Rg1 Qh3 Kf2 e1N Be2 Qg4 Rf1 h1N+ Kg1 Ng3 Bf3 Re7 Kh2 Ra7 Bg1 e3 Bd4 Rg7 Be4 Rg5 Bf3 Re5 Rd8 Ne4 Re8 Kg6 f7 Kg7 f8N Kf7 Bf2 g1N Kh1 Rg5 Bg2 Ngf3 Bg1 Nd3 Qe1 Rf5 Qa1 Nde1 Qc5 Nh2 Rb8 Nd3 Qc8 Ne1 Bf3 Rh5 Nf4 Nf6 Bb7 Ne4 Nd5+
2N2N1r/1RNp1P2/Bnq5/R4k2/pq5q/3KQq1q/PBp2b1B/1rRbQ3 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Na6 Bc1 Nc5 Bh3 Ne4 Bg2 fxg4 Bf1 g3 Nd2 g4 Nb1 Ng5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 Ke7 f4 Ke6 e4 c5 b4 h5 b5 a5 g6 h4 g7 g2 b6 c3+ Kd3 c2 b7 a4 b8B g3 Na3 h3 Ne2 g1Q Rb1 g2 Qe1 h2 Rb7 Qg5 Nc4 Qh4 Bb2 c1Q Nd6 Nf6 g8R Qgf2 Rg5 g1Q Rf5 Qgg4 Nd4+ Ke7 e6 Qff3+ Qe3 Nd5 e5 Nb6 Rh5 Qgh3 f5 Qce1 Rg5 Qb4 f6+ Kd8 f7 Ke7 Rhg1 h1Q Be2 Qc6 Rc1 Q1f3 Bc7 Rb8 Rf5 Bh6 Rh5 Kf8 e7+ Kg7 e8Q Kg6 e6 Bg5 e7 c4+ Kc2 c3 Ne6 Bf4 Kd3 Bg3 Ra5 Bf2 Nf8+ Kf6 Nb5 Kf5 Bh2 c2 Na7+ Qbc5 Rc7 Bb7 Nc8 Qe6 Bf1 Bd5 Rb7 Qec6 Kd2 Be6 Ba6 Bc4 Kc3 Be2+ Kd2 Bd1 Kd3 Na8 Qd8 Nb6 e8N Nd5 Nc7 Qcb4 Ra7 Rb5 Qe8 Nb6 Rb7 Qbg4 Bbe5 Rb1 Qe7 Qgf4 Qb4 Qf4g4 Qe1 Qb4 Bb2+
K3Qk2/p2q2pq/1qp1rB1N/B3r1Rb/3R1bQ1/3Rn3/P2qP3/1N1Bq1N1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 bxc4 d4 Nc6 e6 Ne5 dxe5 hxg4 Kd2 f5 Kc3 d5 Kd4 c3 h4 f4 b4 c2 h5 g3 e7 f3 Kc5 f2 Kc6 g2 b5 d4 h6 d3 h7 d2 b6 Be6 Kb7 c6 Rh4 Bf7 Bb2 c1Q Qa4 d1Q Qg4 Qcc2 Bc3 Q8d3 Ba5 Nh6 Rh3 Qdc4 Rd3 Rg8 h8N Bh5 Nf7 Nf5 Nh6 Qd5 Rd4 Kd7 e8R Qd6 Rd8+ Ke7 e6 Qb4 R8d7+ Ke8 e7 Qbd2 R7d5 Ne3 Rg5 Rd8 Rd3 Rd6 Ka8 Rh8 b7 Re6 b8B Re5 Rd4 Qh7 Bbc7 Re6 Be5 Q1e1 Bf6 Re5 Nh3 g1Q Bg2 f1Q Be4 Qff5 Bc2 Qd7 Bd1 Qgf2 Ng1 Re6 Nf5 Kf7 e8Q+ Kg8 Qg6 Bd6 Re4 Bf4 Nh6+ Kf8 Rd4 Nf5 Rd3 Qb6 Nc3 Ne3 Rb1 Re4 Rb4 Re5 Nb1 Qg8 Nf7 Rh6 Rbd4 Qh7 Qe4 Qf1 Bd8 Rf6 Nh6 Qf2 Qg6 Rfe6 Bf6 Qfe1 Qe8+
3q2B1/3RbBBQ/PQk2nnN/Qr1N1n1p/r1p4P/1R2pRq1/q4q2/2K5 b - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b6 f4 gxf4 d4 Bg4 d6 Kd7 e5 Ke6 d5+ Kf5 b4 a5 e6 axb4 Qb3 Kf6 Qc2 Bd1 Qe2 Ba4 Qd1 Bd7 exd7 Kf5 Na3 Kg5 Nb1 Kf6 Kd2 Ke5 g4 c5 h4 f5 a4 h5 g5 b5 a5 c4 g6 f3 g7 b3 Nc3 f2 Ra2 f4 Rh2 f3 Nge2 b4 Rh1 b2 Nd4 b1Q Nf5 b3 Bb2 Nc6 Qc2 Nf6 Bh3 f1Q g8B f2 Ra3 Qa2 Nh6 e6 Rh2 Ne7 Qh7 Ng6 Rg2 Qd3+ Kc1 f1N Rg3 Ne3 Rf3 Nf5 Ba1 Be7 a6 Rb8 Bg4 Rb4 Bb2 Ra4 Ba1 Qc7 d8Q Qf2 d7 Kd6 Qb8 e5 d8R+ Kc5 d6 e4 d7 e3 Nd5 Qcg3 Qb4+ Kc6 Qa5 Ne8 Bg7 Nf6 Rb8 Qd4 d8Q Qb6 Rb7 b2+ Kb1 Qd4 Rab3 Qdd2 Bf7 Re8 Qb8 Rg8 Qa7 Rb8 Rd7 Rb5 Bg8 Qd4 Bf7 Qb6 Bg8 Qd8 Bh3 Nd4 Bhe6 Nf5 Bef7 Qfg1+ Kc2 b1Q+ Kc3 Qa1+ Kc2 Qa3 Qd4 Q1f2+ Kd1 Qaa2 Kc1 Qf4 Qa7 Q4g3 Q7b6+
r2N4/bR1nq1BR/BqP2p1n/1r1k1Q2/3B2QK/rp1Nn2p/N6P/3Qr3 b - - 0 1 legal: proof: f4 c5 g4 e5 b4 a5 d4 axb4 g5 b6 g6 Ba6 Nh3 Ke7 Ng1 Bc4 fxe5 cxd4 Be3 f6 Bc1 Bf7 gxf7 Ra3 Nd2 Ra6 Nb1 Ra8 Qd2 Ke6 Kf2 h5 Kg3 d5 c4 g5 a4 d3 e4 b5 c5 d4 a5 g4 c6 Ra7 a6 b3 Nf3 b2 Ne1 b4 Nc3 b1Q Bb2 Rd7 a7 Re7 a8N Bh6 f8B Rb7 Ra7 Be3 Na2 Nh6 Be2 Rb6 Rh7 Nd7 Bg7 Bg1 Qf4 d2 Ba6 d1N Ba1 d3 Nc7+ Ke7 e6 d2 Qg5 Kd6 e7 Rg8 e8Q h4+ Kf4 h3 Kg3 Qb2 Kh4 g3 Ne6 g2 e5+ Kd5 Qeg6 Be3 Q5h5 g1R Qhg4 Rg3 Q6f5 Bf2 Rg1 Ra3+ Rg3 Bd4 Rb3 Ne3 Nd3 Qb1 Bc3 d1R Bb2 Qf8 Ba1 Qc5 Rb2 Ra8 Nd8 Re1 Rb3 Nf1 Bb2 Qd6 e6+ Qe5 e7 Rb7 e8Q Ba7 Qeh5 Ne3 Qe2 Rbb8 Qfg4 Rb6 Qhg6 Qe7 Qd1 Rbb8 Be5 Qb2 Q6f5 Qd4 Rc3 Rb7 Rc4 b3 Rb4 Rbb8 Rb7 Qdc5 Rc7 Rb5 Rb7 Qb6 Bd4+
Q2K1b1q/1k4NQ/1B1Pb3/RNB1rp1B/b4pQ1/1qR1nP1R/2qb3p/3r4 b - - 0 1 illegal: No possible last move, all moves rejected
b2q2RB/2pp2B1/3PQ2K/QN1RQ2p/1nR4P/n2q1qn1/1Br2k2/2rN2q1 b - - 1 2 legal: proof: b4 g5 a4 e5 f4 gxf4 c4 b5 axb5 Qg5 e3 Qd8 Be2 Bc5 Bf3 Bb6 c5 e4 cxb6 exf3 Kf2 Ke7 h4 Ke6 g4 Kd5 d4 Ke4 d5 a5 d6 f5 b7 h5 g5 a4 g6 a3 g7 a2 b6 Nc6 b8R Qg5 b5 Qg4 b7 Ra4 b6 Ra5 Qe1 Ra8 Qa5 Qg6 Nh3 Ne5 Na3 Nc4 Bb2 Nf6 g8Q Nd5 Nb5 Nb4 Rac1 a1Q Rhd1 Qe8 Rd5 Na3 Rc6 Qd1 Rc4+ Qd4 Qg7 Rf8 Qe5+ Kd3 Qe6 Qd8 Qe5 Kd2 Qe6 Qd3 e4 Rg8 e5 Ra7 Ra8 Rg1 b8B Rc1 b7 Ra6 Ba7 Rc6 b8B Bb7 Bad4 Rc2 Kg1 Ke1 Bba7 f2+ Kg2 f1N+ Nf2 f3+ Kh3 f4 Nd1 Ng3 Bac5 Qg5 Rg8 f2 Bdc3+ Ke2 B5d4 f3 Kh2 Ba8 Kh3 Qd8 Kh2 Nf1+ Kh3 Nh2 Kg3 f1Q Kf4 f2 Bb6 Qe8 Kg5 Qd8+ Kh6 Qg1 Bbd4 f1Q Qg6 Rc1 e6 Qff8+ Bg7 Qff3 e7 Nf1 Bcf6 Ng3 e8Q+ Kf1 Qe5 Rc2 Bh8 Rc5 Bfg7 Rc6 Ne3+ Kf2 Qge6 Rc1 Rcd4 R6c3 Rc4 R3c2 Nd1+
6q1/b4p2/bnR3P1/1qBp2k1/3P1R1n/q1nBK1nr/p1NRB1NN/3QQ3 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 a4 g5 h4 gxh4 b6 Ra6 b7 Rg6 b5 Rg5 b6 Rb5 axb5 a4 Kf2 Ke7 g4 Kf6 e4 h5 d4 c5 e5+ Kg5 e6 d5 e7 h3 e8B h2 Ra2 a3 Be2 h4 Nc3 h3 Rd2 f3 Ke3 a2 Ba3 c4 Bc5 Nd7 b8N f2 b7 f1Q b6 Ne7 Na6 Ng6 b8Q Nh4 b7 Nb6 Nb4 Bd6 Qa7 Bb8 Bb5 Qg8 Qa5 Ba7 b8R Ba6 Rc8 Rh6 Nc2 Rh8 Nb1 c3 Ne1 c2 Na3 c1Q Nac2 Qa3+ Bbd3 Rh7 Ng2 Rh6 Qa1 Qb1 Rc6 Qb5 Qd1 Rh5 Bf3 Rh8 Ne2 Rh5 Rf1 h1N Ng3 h2 Be2 Nf2 Qc3 Ne4 Rf4 h1N Nf1 Nhg3 Nh2 Nf3 Qca1 Nc3 Qe1 Rh3 Qad1 Nh4 Rc7 Kh6 g5+ Kg7 g6 Kh6 Rc8 Kg5 Rc6
1qNB4/pp2QNQQ/1n1b2K1/1bnB1Np1/1P6/R3q1nr/nq1P2BR/5k2 b - - 0 1 illegal: No proof kernel
1Q1k1B2/B2n2q1/1pqPq2p/3nbp1Q/r1bR1N1N/1P2RN2/3b2q1/3KQB2 b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 a4 gxh4 a5 d5 cxd5 b6 a6 Nc6 Rh2 Rb8 Rh1 Rb7 axb7 Nb8 Ra5 a6 Ra1 a5 g4 c5 d4 f5 e4 h6 d6 c4 e5 h3 e6 f3 d7+ Ke7 b3 a4 d5 c3 g5 a3 g6 a2 g7 c2 Nd2 Nf6 g8Q Qe8 d8N Nbd7 b8B h2 Ba7 f2+ Ke2 Qf7 Ndf3 Bg7 Qe1 Ba6+ Kd2 Bb5 Nh4 Bc4 Ngf3 Rh7 Rg1 h1Q Rg4 Qe8 Bb2 c1B+ Kd1 Bd2 Rd4 Bh8 Rc1 a1Q Qg4 Rg7 Qh5 Rg4 Bc3 Qg6 d6+ Ke8 e7 Nd5 Ne6 Be5 Nf4 Qg2 Be2 f1Q Rb1 Qfg1 Bf1 Qa4 Rc1 Qb5 Bb2 Qc6 Rc3 Qe3 Rcd3 Bh8 Rc3 Qe6 Re3 Bg7 Rdd3 Bh8 Bg7 Qgf7 Bf8 Be5 Nfg6 Qg7 Rd4 Ba6 Rdd3 Ra4 Rd4 Nc5 Nf4+ Kd7 Be2 Bc4 Bd3 Kc8 Bf1 Nd7 e8Q+ Kb7 Qef7 Kc8 Qg8 Kd8 Qgf7 Nb8 Qb7 Nd7 Qb8+
bn2Qqq1/p1r5/pRNNp2n/n1rP3B/3q1qN1/PQ4RK/2R5/2Q1B2k b - - 0 1 illegal: No proof kernel
2KQqq2/1n2p2B/qqR2P2/R1r4r/NQR4N/1np2bNp/1Bk1P2Q/6r1 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 h4 dxc4 Bh3 Bh6 Bf1 fxg4 Ra3 g3 Ra6 g4 Ra1 Bg5 hxg5 Ba6 Nf3 Bb7 Ng1 Bc8 d4 Kf7 Kd2 Kg6 Ke3 Kf5 f4 c5 b4 a5 d5 h5 g6 a4 g7 a3 d6 h4 d7 a2 b6 g2 b7 c3 b5 c4 Kd4 g3 Kd5 c2 b6 h3 Nf3 g1R Bg2 Qf8 d8Q Qe8 Qd2 Na6 b8R Nc5 b7 Rh5 Bb2 c1Q Qb4 Nh6 g8N Nb3 Nf6 Nf7 Ne4 Nd6 Nbc3 Qf1 Na4 c3 Nh4+ Kg4+ f5 Kf4 Rd1 Ke3 Rd4 a1Q Rc4 Bd7 Rbc8 Bc6+ Ke6 Ra5 b8Q Nb7 Bf3 g2 Ng3 Qf2 Be4 Rc5 Bb1 Bf3 Rc6 Qa2 Bd3 Kd2 f6 Qe3+ Qe5 Qh6 Qed6 Qhf8 Q6b8 Qb1 Bh7+ Qd3 Qf4+ Kc2 Qfd6 Qeg6 Kd7 Qgf7 Kc8 Q7e8 Re4 Qa6 Qc7 Rc1 Rd1 g1Q Rd5 Qe3 Rf5 Rg1 Rc4 Rb5 Qb8 Qeb6 Qf4 Bh1 Qf2 Bf3 Qh2 Rc5 Re4 Rc4 Ra5 Rcc5 Rc4+
4b3/B1rRprPn/pQ2KNBq/2q5/pbR5/5Q2/1QRNP2k/1Br1qr2 b - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 h4 bxa4 g4 d5 cxd5 Nd7 h5 Ne5 g5 Ng6 hxg6 Bg7 Bh3 Bh6 Bf1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 b4 c5 d4 c4 b5 c3 b6 f3 g7 a6 b7 h4 b8Q+ Qc7 g6 h3 Ra2 f2 Rc2 h2 Bg2 f1R Nd2 f6 Nh3 Bb7 Nf4 Ra7 Kf5 Rh7 Be4 Bc6 Qb2 Be8 Qe1 Qb6 Qf2 Qc5 Qf3 Rc7 Rg1 h1Q Rg4 Qh6 Nh5 Qb5 Nb3 Qc6 Be3 Qc5 Nd2 Qc6 Rc1 Qc5 Bb1 c2 Ke4 Kd7 d6 Ke6 d7 Kd6 d5 f5+ Kd3 f4 Ke4 Nf6+ Kf5 Rd1 g8B Rf1 Bd4 Rf7 Bh7 Bg7 d8R+ Rd7 Rc8 Rc7 Rd1 c1R Be3 Qa5 Ba7 Qc5 Qh3 f3 Rc4 f2 Qf3 Rg1 Rc2 f1Q Rc4 Qe1 Rc2 Nd7+ Nf6 Rf1 Rc4 Nf8 Rc2 Qh1 Rc4 Bh6 g7 Bf4 Bg6 Nh7 Rb8 Qh6 Rb3 Bg3 Rbc3 Be5 Rc2 Bc3 Kg4 Ke5 d6 Ke6 d7 Bb4 d8Q Rd7 R4c3 Ke5 Qb6 Rc7 Qa8 Kd4 Rc4+ Ke3 Qd5 Kf2 Kf5 Kg1+ Ke6 Kh2 Qf3 Qhg5 Nde4 Qh5 Rd7 Qh6 Nd2
1q1knQb1/Q1p1p3/2n2NrR/qB1P4/N1BR1B1K/Q1q1N3/2r1Pp1n/4n3 b - - 0 1 legal: proof: c4 g5 f4 gxf4 h4 d5 g4 dxc4 a4 b5 axb5 Nh6 g5 Bg7 g6 Bf6 Nc3 Bg5 hxg5 Ng8 Nb1 Bf5 Bh3 Bg4 Bf1 Bc8 Kf2 a5 b4 h5 d4 f5 g7 c3 b6 f3 Kg3 a4 b5 f4+ Kh4 c2 b7 f2 b6 a3 g6 a2 Nf3 Rh6 Rh2 Nc6 b8Q Be6 b7 Nf6 Qd3 Bg8 Bg2 f1N Ne1 f3 Bf4 c1Q Qa3 f2 Qba7 Qb8 Nc3 Kd8 Na4 Qc3 Rd1 a1N Nc2 Ne8 Ne3 Nc2 Bh3 Ne1 Bd7 Qa5 Rh1 Nh2 Rd3 Be6 g8B Qc3 g7 Rg6 Bf7 Bc4 g8N Qa5 Kh3 h4 Nf6 Ba2 Bc4 Qc3 Ba6 Bg8 d5 Qa5 Bc4 Qc3 Qb6 Ra5 Rd4 Rc5 Qa7 Qa5 Bd3 Rc1 Bc4 Rc2 Bg5 Nhf3 Kg4 h3 Kg3 Nh2 Kh4 Nf1 Bf4 h2 Rg1 Qc3 Rg2 h1Q+ Rh2 Qf3 Rh3 Qa5 Rh1 Qc8 b8Q Nh2 Qba8 Nb8 Bdb5 Nc6 Rg1 Qb8 Rg5 Qe4 Rh5 Qd3 Rh6 Qdd2 Qb6 Qdc3 Qaa7 Ne5 Qe6 Nc6 Qf7 Qb7 Qg7 Qb8 Qf8
1rR1rQ2/1nnp1P2/1R6/Bbnp1n1R/nrp3KQ/NBb4B/Q1P5/kN6 b - - 0 1 illegal: No possible last move
2RBR1r1/3b3b/b2b1Pkr/1N1N4/2N1ppnQ/rBBpQ3/3QP3/1nn2K2 b - - 0 1 illegal: No proof kernel
3Bb1n1/4b3/R2np2P/1R1n1pqp/1Q2rPkN/R2NbB2/n2N4/Q2bQK2 b - - 0 1 illegal: No proof kernel
3n1RQ1/2Prb1n1/1n4n1/Bp1rBpr1/4Nq1p/2Q2r1N/2BR1N1P/1Rk2K2 b - - 0 1 legal: proof: f4 c5 g4 e5 b4 a5 d4 axb4 g5 b6 g6 Ba6 Nh3 Ke7 Ng1 Bc4 fxe5 cxd4 Be3 f6 Bc1 Bf7 gxf7 Ra3 Nd2 Ra6 Nb1 Ra8 a4 Ke6 e4 g5 c4 h5 c5 d5 c6 g4 c7 b3 a5 b5 a6 d3 a7 d2+ Kf2 g3+ Ke2 g2 Qe1 d1R Bd2 d4 Bc3 d3+ Kf2 b2 Na3 b1N Bd4 h4 Nc2 d2 Bb6 Qd6 Ba5 Ne7 Bd3 Na3 Nb4 Ng6 Nh3 g1R Rb1 Rh7 Bc2 Nc4 Nd3 Rg5 Kf1 Nb6 Ndf2 Be7 f8B Nc6 Bg7 Rf8 a8R Nd8 Rg1 Qd4 Rg2 Qe3 Rb8 Qf4 Rc8 Rc1 Ra8 d1N Qc3 Rhh5 Rg3 Rf7 Rd3 Rh7 Rd2 Ne3+ Ke2 Rd1 Rc8 Nc6 Rf8 Nd8 Bh8 Nf5 Bg7 Rdg1 Bh8 R1g3 Kf1 Rd3 Bg7 Rd5 Bh8 Kd7 e6+ Kd6 Bg7 Rd3 e5+ Kd5 Qc6+ Kd4 Qc3+ Ke3 Bh8 Ba3 e7 Ng7 e8N Be7 Nd6 f5 Ne4 Rf6 Qb2 Rfd6 e6 R6d5 Qf6 Bd6 e7 Rb3 e8Q Be7 Rd4 Rd3 Qef7 Rc3 Qg8 Rd3 Nc3 Kd2 Bb3 Nge6 Ba2 Bd6 Bb3 Rd7 Bc2 Be7 Qe5 R5d6 Qc5 Rd5 Be5 Ng7 Rbb4 Nc4 Ne4+ Kc1 Rb2 Re3 Rd2 Nb6 Qc3 Rf3 Rb1#
N1r1n2K/bRB1Rr2/2BN1QBb/P2b1np1/rp2p3/2bk4/N4QP1/Rr6 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 d5 b4 axb4 h5 f5 cxd5 fxe4 Bd3 Qd6 Bf1 Qg6 hxg6 Be6 Nh3 Bg4 Ng1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 a4 b5 f4 h4 g7 b3 f5 b2 f6 e3 f7 h3 a5 b4 Qe2 e6 Qf2 c6 Bd3 e2 Na3 b1R Nc4+ Kd7 Ke5 e1B d6 h2 Ne2 c5 Nb6+ Kc6 d7 c4 d8Q Kb5 Qdf6 Nh6 g8B Na6 Bg6 c3 d4 c2 d5 Ra7 d6 Nf5 d7 Nc7 d8N Ne8 Na8 Kc4 Nb7 Kd3 Nd6 Bh6 f8R Bb7 Rf7 Bd5 Bf4 c1B Rb7 Be3 Nc3 Bb6 Rg1 h1R Na2 Bd2 Re1 Rh3 Rb8 Rf7 Rb7 Ba7 B8h7 Kc2 Re2 Ra3 Re4 Kd3 Bg8 Rf8 B8f7 Ra4 Bh2 Neg7 Be8 Rf7 Bc6 Rc8 Nb5 Ne7 Q6f5 Rff8 Qf7 Nef5 Kf6 Be1 Bc7 e5 Nd6 Bc3 Re1 Rfd8 Qe6 Ne8+ Kf7 Rd7+ Kg8 Re7 Kh8 Rf7 Re4 Be3 Qf6 Ba7 Rc4 Be6 Rc5 e4 Re5 Bd5 Re7
2qBqnrn/3QN3/p1qqR3/ppqnBQR1/P1B3bk/QP4N1/7N/4K3 b - - 0 1 illegal: No proof kernel
2QkB3/K1RN1bR1/3B2Q1/2P1b1p1/pBR1r1bp/pN3q1P/nr5r/n2N4 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 bxa4 b4 e5 dxe5 f5 bxc5 fxg4 Kd2 a5 Kc3 d5 Kd4 g5 c4 h5 e4 g3 f4 a3 f5 h4 c6 g2 e6 a4 c7 Ke7 Kc5 d4 Kb6 d3 h3 d2 f6+ Ke8 e5 Na6 f7+ Ke7 Nf3 g1R Nc3 Bg7 f8B+ Ke8 e7 Qd7 Qc2 d1B Bd2 Nf6 Rc1 Ng4 Nd4 Bh6 Nb3 Rb8+ Ka7 Qe6 Qg6+ Qf7 c5 Nb4 Bb5+ Bd7 c8N Rf1 Nb6 Rf2 Re1 Na2 Bc6 Bc2 Nd1 Bg7 Bb4 Ne3 Rf1 Bb1 Rc4 Rh2 Bb5 Bf5 Rff4 Bc6 Nd7 Bg4 Rf6 Bcf3 Rc6 Nc2 Rc7 Na1 Nb6+ Bd7 Nd2 Rd8 Nb3 Rb2 Qe6 Bdc6 Qc8 Bd7 Bc6 Bg4 Bb5 Qf3 Bc6 Kf7 e8R Rh7 Be7 Bde6 Rg8 Rdd2 Bb5 Rh2 Bd6+ Bd7 e6+ Kf6 e7 Bde6 e8Q Bh8 Bc6 Re7 Qh5 Bf7 Qh7 Re4 Be8 Bg7 Nd7+ Ke6 Bf4 Ke7 Qg6 Bd4 Rg7 Bc3 Qca6 Kd8 Bd6 Be5 Qc8#
BN2Q3/bB1qkN2/RNQ3p1/1rp3n1/pB6/2bnp3/KR1bP1P1/1r3Qn1 b - - 0 1 illegal: No proof kernel forced: bxLB
1NQ1brQb/B1q1B2p/n1k4K/4P1p1/pRr1r3/P5b1/pR4N1/QnNR4 b - - 0 1 illegal: No proof kernel
2Bn3Q/1r2n2p/Rp4RP/BKb3qQ/2rkN3/3b1pNB/4npP1/4rNR1 b - - 0 1 legal: proof: d4 g5 f4 gxf4 b4 e5 dxe5 Ke7 b5 Ke8 b6 Qg5 a4 Qf6 a5 Qd8 a6 cxb6 axb7 Qf6 Qd2 Qe7 Qd1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 d5+ Kb5 f5 c4 a5 h4 d4 e4 f3 c5 a4 h5 f2 h6 f4 c6 d3 c7 a3 Bd2 a2 Qh5 f3 Ba5 d2 Bd3 d1N Ne2 Qh4 Rg1 Bc5 Ng3 Qh2 Nd2 Ra7 Ndf1 Nc6 b8Q Bd7 c8B Qh4 Qa8 Qg5 Bb1 Ke7 e6 Kf6 e7 Ke5 e8N Bf5 Nf6 Kd4 e5 Rb7 e6 Nd8 e7 Be4 e8R Ne7 Rg8 Nc3+ Ka6 Ne2 Rg6 Bc2 Kb5 Rf8 Nfe4 Bd3+ Ka4 Rf4 Bc2 Nf7 Bb3 Rh4 Bbe6 Nd8 Bh3 Rf4 Rb1 Rh4 Rb3 a1R+ Ra3 Rc1 Qb8 Rc4+ Kb5 Rf4 Be1 Rf5 Ra6 Re5 Ba5 Nc1 Ned2 Re1 Nde4 Ne2 Qd6+ Nd5 Qf8 Ne7 Qh8+
1nb1K3/2b2Pk1/p1pRQ3/2q2B1P/1Qr1NR2/bp2Q1B1/p4Br1/4RNrn b - - 0 1 illegal: Other
2B3Q1/1NpP3p/2r2p1K/1Q1pB1nQ/1BP1rR1R/3b1qkn/1Nb5/2b1R2r b - - 0 1 illegal: No proof kernel
1bkn4/rp1b1nB1/2RqB1pR/P2RQ1N1/1p4P1/4Nn1p/2r1QKN1/r2B4 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 exf4 h5 g6 h6 Qg5 Nc3 Qf6 Nb1 Qg7 hxg7 Ra7 Qb3 Ra4 Qd1 Ra8 d4 Kd8 g4 h5 e4 f5 a4 c5 e5 h4 d6 f3 a5 f4 d7 c4 d5 c3 e6 c2 e7+ Kc7 d8R Ra6 e8Q Nc6 d6+ Kb8 d7 Nh6 g8B Ra7 Ne2 Nf7 Qe5+ Bd6 Bb2 c1R Nbc3 Rc2 Rc1 Rh7 Bg2 f2+ Kf1 Rh5 Bf3 Rh6 Kg2 f1N Kf2 Nd2 Nd5 Bc7 Ne3 Rh7 Bd5 f3 Nf4 Rh5 Qe2 h3 Nfg2 Rf5 Be6 Bd6 Rf8 Ncd8 Rhd1 Rf4 Bc3 Rc4 Bb2 R4c3 Ba1 Ra3 Bd4 Ra1 Bb3 Ng5 Bge6 Ngf7 Rh8 Bc7 Rh6 Bd6 Kg3 f2 Bc3 Nf3 Rd5 f1Q Ba4 Qh1 Kf2 Qh2 Bb3 Nc6 d8N Bd7 Bb2 Kc8 Bd4 Rc4 Bd1 Rc2 Bc3 Bb8 Bb2 Nd6 Nf7 Nd8 Ng5 N6f7 Bd4 Rc7 Rc6 Qf4 Qe4 Qh2 Bg7 Qd6 Ra6 Rc5 Qe5 Rc2 Rc6+
R2Q3N/1p3Bpn/2p5/Q1Pp1n1b/P1R2BB1/3r1r2/1bq1QRK1/n2kr2N b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 f5 exf5 e5 dxe5 axb4 c4 Ke7 f4 d5 Kf2 g3+ Kg2 c6 h4 b3 f6+ Ke6 f5+ Kd7 c5 b2 e6+ Kc7 h5 Nd7 e7 Nh6 e8B Be7 f7 Bf6 f8R Ra3 Ne2 Qe7 Bf7 Rd3 Nd2 b1N Rh4 Na3 Rc4 Nc2 Nf4 Bb2 f6 Nf5 h6 Qe4+ Qf3 Kb8 h7 Ka7 Ng6 Ka6 Be2 Ka5 Nf1 Rg8 h8Q Kb5 Rc3 Kb4 Bf4 Qc4 a4 Qe4 Re1 Na1 Rc4+ Kb3 Qh6 Rh8 Re8 Rh7 Nh8 Nf8 Rd8 Bd7 Ra8 Be8 Qh2 Rh3 Bd1+ Nc2 Re2 Nh7 Rf2 Qe2 Qe4 Qd2 Bg4 Na1 Qe3 Qc2 Qd2 Rf3 Qa5 Rd3 Be6 Bh5 f7 Rf3 f8Q Rd3 Kg1 g2 Bf7 Rhf3 Ng3 Nd4 Qh1 Nf5 Kh2 g1R Qg2 Re1 Qfd8 Ka2 Nh1 Kb1 Rd2 Kc1 Rf2+ Kd1 Qf1 Be5 Kg2 Bb2 Qe2+
1b1N2B1/pb1NR1rQ/n7/6pK/qn1Np1QQ/P1Rbk1p1/2BPBr2/5n2 b - - 0 1 illegal: Other
1Q4B1/1b3R2/1n4Nq/QRP2bpk/pBp1N1P1/N2r2rq/2n1p3/1KQ2Br1 b - - 0 1 illegal: No possible last move, all moves rejected
1B6/N4b2/2Qbk1r1/p4qb1/p2nRpnP/1PKNRQ1p/B2Q1r2/BR4q1 b - - 0 1 illegal: No proof kernel
3N3b/3N2nk/2RBr1p1/b1Rrb1pp/q1N2Q1R/2PQ2P1/2n1Bp1K/4qB2 b - - 0 1 illegal: No proof kernel
6K1/4R2p/pPqNpP2/rb1N2R1/4Q1N1/q3bBB1/Qp1krb2/1n1Q1R1n b - - 0 1 illegal: No proof kernel
k2N1b1q/1nQp2Pr/bRN1PrB1/q1np2Q1/1R2Bp2/pR5q/K2N4/4B3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 d4 exf4 a4 c6 d5 cxd5 axb5 Be7 Qd3 Bc5 Qd1 Bf8 Kd2 h5 Kc3 a5 Kb3 f5 g4 f3 c4 h4 e4 h3 e5 f2 c5 h2 g6 a4+ Ka2 a3 b4 f4 g5 Nf6 b6 Bd6 c6 Ba6 b7 Bb5 e6 Rh4 c7 Ng4 c8Q Rh6 g7 Ba6 g8B Bc7 g6 Nc6 b8R Ne7 g7 Bb5 Bg2 f1Q Nd2 Ra5 Rb1 Ba6 b5 Nf5 b6 Nf2 b7 Nd6 Ne2 Nfe4 Bh7 Nc5 Nd4 Rf6 Bge4 Qh3 Rb6 Rb5 Bb2 Rb3 Bc3 Rb1 Rf1 h1Q Qg4 Q1h2 Rf2 Rh1 Bhg6+ Ke7 Qg1 Qhh8 Qg2 Q2h3 Rf3 Rh2 Rb4 Ba5 Rb6 Bb4 Qc7 Rh1 Qg5 Rh2 Ra8 Rh1 b8N Ndb7 Qc8 Rh2 Nbc6+ Kd6 Rb8 Rh1 Bb2 Rh2 Rb3 Rh1 Bc3 Qc7 Rb5 Qa5 Rb6 Rh2 Qg8 Kc7 Nd8 Nd3 Qe8 Bf8 N4c6 Ndc5 R6b4 Nd6 R8b6 Ndb7 Qe7 Rh1 Qd6+ Kc8 Ne5 Rh2 Qc6+ Kb8 Qc7+ Ka8 Nec6 Qf1 Bd4 Rh7 Bf2 Qh3 Be1
R1Nq1B1K/Q1pPR1np/2p3k1/5rB1/1p2b1rn/PB4n1/5Q1b/QR2q2N b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 a5 h4 Bh6 hxg5 Bf8 b4 axb4 c5 Ra5 c6 dxc6 Na3 Ra6 Nb1 Ra8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 b3 f4 b4 d4 b2 f6 Ra3 d5 Qe7 f5 Rg3 d6 Bb7 a3 Nd7 g6+ Ke8 g7 Kf7 g5 Nb6 d7 Qe8 Nc3 b1N Nge2 Ba8 Nb5 Rc3 Ng3 Be7 Bc4+ Nd5 Bb3 Bd6 Re1 Rc5 Nh1 Nh6 g8R Qd8 Na7 Bb7 Nc8 Ba6 Qd4 Ra5 Qa7 Bc4 Bf4 Ne3 Re8 Nf1 Bd2 Rf8 g6+ Kg8 f7+ Kg7 Bc1 Rg8 f8B+ Kf6 g7 Ng3+ Ke3 e4 Kd4 Nd2 Rb1 Kg5 f6 e3 f7 e2 Re7 Bd3 Rf1 Bc5+ Ke5 Be4 Ke6 Kh5 Kf6 Nf3 Bg5 Nh4 Rf3 e1Q Re3 Rh8 g8Q Bd6 Qg7 Rg8 Rf3 Rc5 Rf5 Ra5 Rb5 Bf4 Rb8 N6f5 Ra8 Be5+ Ke6 Bf4 Qa1 Rg7 Kf6 Re5 Bh6 Rg4 Bg5 Ra5 Bfh6 Rb5 f8Q Ng7 Kf7 Rf5+ Kg8 Kg6 Kh8 N3h5 Ba2 Bh2 Bb3 Ne8 Bg7 Ng3 B7h6 Ra5 Qff2 Rf5 Bf8 Ng7 Qd2 Rc5 Qdb2 Rf5 Qbf2
3nnR2/1PbB4/1B2NQ2/RPp1p2k/rp3Q2/r5Np/q1Q1qN1K/nb4R1 b - - 0 1 illegal: No proof kernel
1nbN4/p2QPpp1/6b1/K2RkB1p/P2r1N2/RQn1Bb1R/1qN2rBq/8 b - - 0 1 illegal: No proof kernel
8/NR3nBp/1p1RP3/b2R1bq1/kp2n1pB/b3b2B/N2P2r1/Q1rQ1K1Q b - - 0 1 illegal: No proof kernel
1Q6/3r3p/PNPQ2Q1/n1K1Bp1B/6n1/1pR1pk1B/2bRNr1q/1bbR1b2 b - - 0 1 illegal: No proof kernel
n1b1Rb2/B1P5/1NQB2Nq/N7/RRpk3b/B1P1pr1n/1rp3p1/1QK3b1 b - - 0 1 illegal: No possible last move, all moves rejected
2R2KN1/1PP5/QN1B1QN1/1rb2Q1k/5n2/1pprpB1q/b2pb1R1/2b2R1n b - - 0 1 illegal: No possible last move
5N1k/2R2bp1/K4Qq1/B4R1p/2pnb1q1/n1P1Qq2/nR2Bp1P/2B1N1Nr b - - 1 2 legal: proof: e4 d5 f4 dxe4 b4 a5 Ne2 axb4 Bb2 e5 Bc1 e3 Ng1 e4 g3 f5 Ba3 b5 Bc1 Bd6 Bb2 Be5 fxe5 f4 Ba3 f3 Bc1 Ra6 Be2 Rf6 Bf1 Rf4 gxf4 Qf6 Nc3 Qg5 Nb1 Qd8 a4 Kf8 d4 c5 f5 h5 e6 e2 Kd2 e1N f6 c4 d5 b3 Kc3 f2 Kb4 b2 d6 e3 f7 e2 a5 Qh4 d7 Nc6+ Kc5 b4 Kb6 b3 d8B Qg4 a6 Nh6 c3 Nc2 a7 e1Q a8Q Qee2 Qd2 Qef3 Qa6 Nf5 Qe3 N6b4 Na3 b1B Be2 b2 Ka7 Nfd4 Ba5 Bd7 Qb6 Na2 Ka6 Bc6 Qd8+ Be8 Qf6 Ne1 Nc2 Rh6 Na3 Be4 Nc2 Rg6 Rb1 Ng2 Ra1 b1Q Ne1 Qc2 Rb1 Qd3 Rb2 Qb1 Qef4 Ne3 Rb7 Nec2 Qe3 Na3 Rb5 Qd3 Rf5 Rg5 Qe5 Ke7 f8N Bf7 Qf6+ Ke8 Rf4 Rb5 e7 Rb1 Rf5 Qd2 Qd3 Qh6 Qe3 Qhg6 Ne6 Kd7 e8R Ra1 Rc8 Rb1 Rc7+ Ke8 Ng5 Kf8 Nh7+ Kg8 Nf8 Kh8 Nh3 Q4g5 Rg1 Qgf4 Rgg5 Q4g4 Ng1 Rb2 Rb5 Rd2 Rgf5 Rd1 Ng2 Re1 Rb2 Rd1 Nh3 Rf1 Ne1 Rh1 Ng1
R2B4/5bR1/npQ1BKP1/1P1Nrppp/3Rq1q1/5n1Q/2Q2n2/r1k1qB1N b - - 0 1 illegal: No possible last move, all moves rejected
4n2K/3q1BN1/2NN3Q/1bpqr1n1/Q1pR2QP/1BR5/p1PBrp1q/3kr3 b - - 0 1 illegal: No proof kernel
1KRr3B/2P1N1R1/4p2k/Q1Q4n/pBB2pn1/qr1b2Q1/P3p2N/1r3Rqn b - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 Kf8 d4 Kg7 c4 h5 c6 a5 c5 b5 c7 f5 d5 e3+ Kf3 e6 c6 h4 d6 h3 d7 b4 Ba3 b3 Nc3 b2 Qd5 b1Q Bc4 a4 Qa5 h2 Bb4 e2 Nd5 Nh6 Ne7 Qe8 d8B Qb2 Rf1 Bd7 c8R Qg8 c7 Kf8 g7+ Kf7 Qc5 Bb5 g6+ Kf6 Kf2 f3 Ke3 f2 Nf3 Qa3+ Kd4 f4 Rhg1 h1N Nh2 Nd7 Rg3 Rb8 Rg4 Qf8 g8Q Qg7 Qh7 Qg8 g7 Ba6 Rg2 Ng4 Qhh5 Bb5 Qhg5+ Kf7 Qgd5 Ndf6 Qa8 Rh3 Qa5 Rb3 Rg3 Nh5 Rg2 Qh7 g8Q+ Kf6 Rgg1 Qb1 Qgg5+ Kf7 Qh4 Kg7 Qg3 Kh6 Rg2 Ngf6 Ke5 Ng4+ Kd6 Ba6 Kc6 Ra8 Kb6 Rb8+ Ka7 Qa1 Rfg1 f1R Rf2 Rfb1 Rff1 Rb6 Ka8 Rd6 Kb8 Qd4 Ng6 Qd1 Bf6 Rd8 Bh8 Qe1 Ne7 Qec1 Bd5 Bd3 Bc4 Qe3 Rg2 Qg1 Qh3 Ngf2 Rg7 Ng4 Qg3
2Nq2nK/1k1p4/R1p1pBp1/BR2Q1r1/2r2Q2/1qP1n2n/2rN1P2/1BQb2R1 b - - 0 1 legal: proof: e4 h5 a4 e6 g4 hxg4 e5 b5 d4 f6 axb5 fxe5 d5 c6 d6 e4 Qd2 Be7 Qd5 Bf6 Qd1 Bd4 Be3 Bb6 Bc1 Bc7 dxc7 Rh4 Bh3 Rh6 Bf1 Rh8 Ke2 a5 Ke3 g3 Kd4 e3 Ke5 g6 h4 e2 b4 e1Q+ Ne2 g2 h5 g1R b6 a4 b7 a3 h6 a2 b5 Qh4 h7 Rg4 b6 Raa4 Bd2 Rg2 Ba5 Rd4 c3 Rgg4 Nd2 Qd8 Qc1 Rc4 Rg1 Qd1 Nf4 Qb3 Nd5 Na6 b8Q Nc5 b7 Ne4 Nb6 Ng5 Bd3 Nh3 Rb1 a1N Rb2 Ne7 Kf6 Rg5 Kg7 Ng8 Bb1 Nc2 Ra2 Ke7 Ra4 Kd6 Rb4 Nf6 Rb5 Rf8 h8B Ng8 Kh7 Ne3 Bf6 Re8 Kh8 Rf8 Bd4 Rff5 Bf6 Rd5 Qa7 Rd3 b8Q Ba6 c8R+ Qc7 Qbb7 Qd8 Ra8 Rdd4 Nf3 Rd2 Qab8+ Qc7 Q7c8 Rb2 Nd2 Rc2 Rf5 Bb5 Ra6 Ba4 Re5 Ng4 Rb5 Ne3 Qa8 Qb8 Qf8+ Kc7 Qb4 Qe8 Qc5 Qe7 Qf8 Qd8 Qe5+ Kb7 Nc8+ Qb6 Qed6 Rb2 Nf1 Qb4 Qe5 Bd1 Be7 Qb3 Qff4 Rd2 Bf6 Rc2 Rc5 Qc7 Nd2 Qd8 Rb5+
3q4/1B1N1p1r/1pQ1r1r1/n1Bq1kN1/pKPQq2R/4N3/1P3p1b/Rb3Q1B b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 d4 exf4 a4 cxd4 a5 b6 a6 Nc6 Nc3 Na5 Nb1 Nb7 axb7 Qe7 Qd3 Qf6 Qd1 Qd8 Kd2 Ke7 b8N Ke6 c4 a5 h4 d5 e4 g5 e5 g4 h6 d3 Kc3 g3 h7 g2 h5 f3 h6 d2 Nh3 g1R Ng5+ Kf5 e6 f2 e7 a4 e8B Bd6 Bg2 Bh2 Nd7 d4+ Kb4 d3 Na3 Ne7 Qf1 d1Q Bb7 Qg4 Nc2 Qe4 Be3 d2 Bc5 d1Q Ne3+ Kg6 Nb8 Q1d5 Bec6 Bf5 Nd7 Re8 h8Q Rb8 h7 Rc8 Bb5 Nc6+ Kc3 Re6 Qd4 Rb8 h8Q Na5 Qe8 Rg3 B5a6 Rh3 Kb4 Rh7 Ba8 Rc8 B6b7 Rcc6 Kc3 Qh4 Kb4 Bb1 Qf8 Qhe4 Qd6 Bg3 Rh4 Bh2 Nd1 Kf5 Qc7 Re8 Qc8 Rce6 Qc6 Rg8 Ne3+ Kg6 Qe2 Qg2 Qd6 Qf5 Bc6 Qh1 Bf3 Qd5 Bb7 Qg2 Qc6 Qh1 Bg4 Qhe4 Qf1 Rgg7 Bf3 Rg8 Nc2 Kf5 Bh1 Rgg6 Ne3+
3Qr1Bk/pN1NR2p/P2r1B1p/7b/1RNb1n2/3RbnQ1/Q1r2p1P/1K4n1 b - - 0 2 legal: proof: e4 d5 f4 e5 b4 c5 Qh5 Qc7 Qh6 gxh6 bxc5 dxe4 Kf2 e3+ Ke2 e4 Ke1 Qe5 fxe5 Bg4 Bc4 Be6 Bf1 Bc8 Kd1 f5 d4 Kf7 a4 Kg7 g4 b5 c4 e2+ Kc2 e1B a5 f4 a6 f3 g5 e3 g6 e2 e6 b4 e7 f2 e8R Ne7 d5 Ng8 d6 Bc3 c6 e1R c5 Bd4 d7 Bb7 d8N Nd7 c7 Nb8 c8Q Bc6 Nf3 Be7 Qc7 Nd7 Qg3 Bh4 Ra4 Re6 Na3 b3+ Kb1 b2 Nb7 Rd6 Nc4 Rc8 Nfe5 Ne7 Rb4 Nd5 Bg5 Nf4 Re7+ Kg8 g7 Bf3 c6 Bh5 Bf6 Bg5 c7 Re8 Nd3 Ne5 c8Q Nf3 Nde5 Ng1 Qc7 Rc8 Nd7 Re8 Qa5 Rc8 Qa2 Re8 Kc2 b1N Bh3 Nd2 Be6+ Bf7 Kc1 Ndf3 Kb1 Rc8 Na3 Rc2 Nc4 Nfe2 Bd5 Bge3 Be6 Nf4 Bd5 Ngh3 Rd1 Nhg1 Rd3 Ngh3 Bc6 Nhg1 Ba4 Bg6 Bb3 Bh5 Bg5 Rb6 Re4 Nfe2 Nce5+ Bf7 Bd5 Nf4 Nc4 Rd6 Re6 Bh5 Bd8 Kf7 Be7 Rf8 g8Q+ Ke8 Qh8 Kf7 Bf6 Ra8 Qc8 Rb8 Qc7 Rg8 Qd8 Re8 Bg5 Kg7 Re7+ Kh8 Bg8 Nfe2 Bh4 Nf4 Bf6+
2nN1B2/N5b1/1bpBK3/P3b1Q1/1p2q2k/6p1/2bpRrPb/QR1B1RnN b - - 0 1 illegal: No proof kernel
2R3bB/1pq4b/pQ3p2/1b1R1Pk1/1PQB1bn1/3B1Q1n/2p1N1KN/1N1br3 b - - 0 2 legal: proof: d4 e5 a4 d5 h4 g5 c3 gxh4 a5 c5 a6 Nxa6 Ra3 Be6 Ra2 Nb4 Ra1 a6 dxe5 d4 c4 Na2 Qd3 Rc8 Qd1 Rc7 Qc2 Rd7 Qd1 Rd5 cxd5 Qb6 Bg5 Qc7 Bc1 Qd8 b4 Ke7 f4 h5 Kf2 c4 g4 d3 e4 c3 d6+ Kd7 f5 h3 g5 h4 g6 d2 g7 c2 Bb2 h2 Ne2 h3 Bd4 Nc1 Ra5 Qc7 Rd5 Nh6 g8Q Nd3+ Kg3 Kd8 d7 Ke7 Kf3 Nf2 d8B+ Ke8 Be7 Nhg4 Bf6 Rh7 Bh8 Ke7 Rg1 h1B+ Rg2 Bd7 e6 h2 e5 Bh6 Qg6 Bf4 Qf6+ Ke8 e7 Bb5 Qg6 Nh3 Qb6 Bg5 Kg3 Rh6 Rg1 Re6 Rg2 Be3 Rg1 Be4 Rh1 Bed3 Kg2 Bdc4 Rg1 Bf4 Rh1 Qd6 Rg1 Kd7 e8N Ke7 Nf6 Qc7 Rh1 Rd6 e6 Ba2 Qc1 d1B Qe3 Rd8 Qd3 Re8 Qc4 Bb3 Ng3 Ba2 Bd3 Bb3 Re1 Ba2 Ree5 Bb3 Ne2 h1B+ Kf1 Ba2 Rd8 Bd5 Rc8 Ngf2 Ng4 Bb3 Nh2 Ng4 Qcc6 Bdc4 Qf3 Ba2 Kg2 Bd5 Bg7 Bac4 Bf8+ Kf6 e7+ Kg5 Bg7 f6 Bh8 Bg8 Rc5 Bh7 Rd5 Rf8 e8Q Ba2 Rd7 Bag8 Qf7 Re8 Qc4 Re5 Rd5 Re8 Nec3 Re1 Ne2
b1krR3/1P1q1N2/Bn1p1Bp1/b4b2/Qn2b3/p3b1pQ/PR2K3/4QNRN b - - 0 1 illegal: No possible last move, all moves rejected
1NB4B/k1b3b1/1Q2Kp2/P2n3b/p7/1nBR1p1p/PqN1R1rb/Nb2QR2 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 dxc4 b4 e5 Qc2 exf4 Qb3 a5 Qd1 g5 hxg5 a4 Rh6 Qe7 Rh1 Ra5 bxa5 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb7 Ke5 c5 e4 h5 d4 f3 g4 c3 d5 c4 d6 b4 d7 h4 g6 b3 g5 h3 g7 b2 g6 c2 Bd2 c1B Na3 b1B Nc2 c3 Ne2 Qh4 d8B Nh6 g8N Ka6 g7 Bf5 Ned4+ Ka7 Ne7 Qe1 g8Q Rh7 Qg1 Rg7 Nb3+ Qf2 Ba6 Ng8 Qde1 Bg6 Bc8 Na6 Bc7 Nf6 Nc6+ Ka8 Rh2 Nc5 Nb8 Nd5 Bd8 Ka7 Bf6 Rg8 Bh8 Bg7+ Kd6 f6 e5 Bb2 e6 Bh5 e7 Qg2 e8R Qf2 Nb4 c2 Bc3 c1B Nc2 Bf4+ Re5 Qd2 Re2 Bh2 Re3 Bc1 Rd3 Qe2 Qgf2 Bcf4 Qfg1 Qd2 Qgf2 Qc1 Qd4 Qb2 Qb4 Ne4+ Ke6 Nd2 Re2 Bc7 Ne3 Bc2 Rc1 Bb1 Na1 Nb3 Nec2 Bh6 Rcd1 Rg2 Qb6+ Ka8 Qg3 Bf8 Rf1 Bg7 Qbd6 Ka7 Qe1 Bf4 Qb4 Bh2 Qb6+
2N1nq2/r1p4n/pr6/2P2k1N/2BQb1r1/N2RBQ1R/P1K2p1p/BR3nr1 b - - 1 2 legal: proof: f4 e5 c4 exf4 d4 g5 h4 b5 hxg5 Bc5 dxc5 bxc4 Kd2 Ke7 g4 Ke6 e4 f5 b4 d5 b5 h5 e5 c3+ Kc2 d4 b6 f3 b7 h4 g6 h3 g5 f4 g7 a6 g6 f2 Be3 f3 Bc4+ Kf5 e6 f1N e7 f2 e8N Nd7 b8B Rh5 Na3 Rh6 Ba7 Qf6 Bb6 Ra7 Ne2 Bb7 Nf4 Nf8 Nh5 Nh7 Rb1 Qf8 Ba5 Ngf6 g8Q h2 g7 Bg2 Qh8 Be4+ Qd3 Rg6 g8R Rg4 Qg7 Rb7 Rh8 Ra7 Kb3 c2 Bc3 c1R Ba1 Rd1 Kc2 Re1 Rb3 Rb1 Rc3 Rb6 Nd6+ Ke5 Nc8 Kf5 Qe7 Ne8 Qd8 Nd2 Rb1 Nf1 Qd6 Rh4 Kc1 Rg4 Qd1 d3 Qd4 Re6 Kb2 d2 Rd3 Rb6+ Qb3 d1R Kc2 Rh4 Rg8 Rf4 Rg3 Rg4 Qbc3 Nd2 Rh3 Rdg1 Qa5 Nf1 Qd2 Rg5 Qd1 R5g4 Qf3+
Bq1r1kq1/1qQnq1NB/6R1/2R3p1/1pQp3p/b2PN2P/4rR2/KBn3Q1 b - - 0 2 legal: proof: f4 b5 b4 f5 a4 e5 Ba3 c5 axb5 Bb7 b6 exf4 b5 Bf3 Bb4 cxb4 g4 Be4 Bg2 f3 Bh3 f4 Bf1 Bf5 gxf5 Qg5 Bg2 Qe7 Bf1 Qd8 c4 a5 e4 h5 h3 g5 c5 d5 e5 a4 b7 d4 c6 h4 b6 a3 f6 a2 f7+ Ke7 e6 Ra7 c7 Qd7 c8B Qd8 Nc3 Ra6 Bg2 Nd7 b8Q Qe8 b7 Bg7 f8R Nc5 Qc7+ Nd7 b8Q Nh6 Nge2 Nf5 Qc4 Be5 Ng3 f2+ Ke2 f3+ Kd3 f1Q+ Kc2 f2 Kb2 Qg1 Qbc7 f1Q Ba8 Qe3 Nh5 Qg2 Ng7 Bf4 Qg1 Qb7 Nd1 Ng3 d3 Qe1 Ne3 Ne2 Rc1 Qb8 Rf6 Qg8 Rg6 Kf8 Rh2 Rd6 Rc3 Nc1 Rf2 Rd5 Ba6 Re5 Ka1 Qe2 B6b7 Qf3 Ba6 Qfb7 Bb5 Re4 Ba4 Re5 Bc2 Re4 Kb2 Re5 Bb1 a1Q+ Kc2 Qaa6 Kb2 Qd6 Ka1 Re4 Nd5 Re2 e7+ Kf7 e8B+ Kf8 Ne3 Qe7 Ng4 Na2 Bf7 Bc1 Ne3 Ba3 Rc2 Nc1 Be6+ Qgf7 Bf5 Qfe6 Q4c6 Qg8 Rc5 Ne5 Qd5 Nd7 Qc4 Qgf7 Rcc6 Kg8 Rh6 Qd5 Rhd6 Kf7 Rh6 Rd8 Rc5 Kf8 Ra6 Qg8 Bh7+ Qef7 Rg6 Qf6 Rh2 Qe7 Rf2+
QK2b3/Q3p2q/RN3QNR/1Bpn4/2bB2pB/2R1P1P1/1k3pr1/q1qr1q2 b - - 0 2 legal: proof: f4 d5 b4 a5 c4 axb4 h4 dxc4 f5 g5 Rh3 g4 Nf3 Bh6 Rh1 Nd7 Ng1 Bg5 hxg5 Nf8 Nh3 Ra7 Ng1 Ng6 fxg6 Ra8 Kf2 Kd7 Ke3 Kc6 Ke4 Kb5 a4+ Kc5 g7 b5 g6 h5 a5 h4 a6 c3 d4+ Kc4 a7 h3 g3 c2 d5 Kb3 d6 f5+ Kd5 h2 Kc6 f4 d7 f3 Qd4 f2 Nh3 Nf6 g8R Nd5 g7 Ba6 Bg5 c1Q+ Nc3 Kb2 e3 b3 Bh4 b4 Qf6 Bc4 Kb7 c6 Be2 Qa5 Nf4 Rd8 a8Q Qf1 Rc1 Qa1 Ng6 c5 Qa7 Rh5 Rh8 Rh6 g8Q Rh5 Rg1 h1B Rh6 Be4 Rh1 Bf5 Rh3 Be6 Rh1 Bf7 Rh2 Be8 Na4+ Ka3 Qgh8 b2 Rc3+ b3 Bd3 b1Q Nb6+ Kb2 Rh3 Ra8 d8B Qbc1 Bc7 Rd8 Be5 Rd6 Bd4 Rd8 Bg5 Rh4 Rh1 Rh2 Bh4 Rg2 Be2 Kb1 Rh2 b2 Rh1 Rd6 Kb8 Rd7 Ra3 Kc2 Ra6 b1Q Rg1 Ba2 Bb5 Bc4 Rh1 Kb3 Nf4 Qh7 Ng6 Qd3 Rd1 Qf1 Rd3+ Kc2 Rc3+ Kb2 Qg8 Nb4 Be5 Rd1 Bd4 Nd5 Qgf8 Bc6 Qc8 Bd7 Qcb7 Be8 Qba8
1q3R2/1r2B2p/3b1pQ1/BQrNpKN1/1n1kP3/1rrpR1P1/B3n2Q/4N2q b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 d4 gxf4 h3 cxd4 Be3 Bb7 Bd2 Bf3 Bc1 Bg4 hxg4 Qc8 Qd2 Qc7 Qd1 Qd8 Kf2 e5 Kf3 Ke7 Ke4 Kf6 c4 a5 b4 d6 c5 a4 g5+ Ke6 b6 f3 g6 a3 g3 f6 g7 d3 b5 d2 c6 a2 c7 f2 c8N Qd7 b7 Be7 b6 Qd8 Na3 Na6 b8Q Nh6 b7 Re8 Nb6 Nf5 Qc2 d1Q Nd5 Ra7 Nh3 Nb4 Bd2 Nd4 e3 Qh5 Bc4 Ne2 Rhe1 f1R Rab1 a1R Ba2 Rf8 g8Q+ Rf7 Qg6 Ra5 Qb2 Rf3 Nc2 Rc5 Rbc1 Rb1 Ng5+ Kd7 Bc3 Kc6 Rcd1 Qh1 Rd3 Na6 Ba5 Nb4 Rc1 Qg8 Ne1 Bf8 Qd2 Rb3 Qe8+ Rd7 b8B Kb5 Ra1 Kc4 Bbc7 Be7 Bd8 Rb7 Qa4 Qe8 Rb1 Bf8 Be7 Qb8 Rb2 Nf4 Qh2 Ne2 Nf4 d5+ Kf5 d4 e4 Bg7 Re3 Bf8 Bed8 Bd6 Be7 d3 Rb1 Kd4 Qb5 Rf1 Rb2 Rg1 Nd5 Rcc3 Ng2 Rgc1 Ne1 Rc5 Rc2 Rcc7 Rc6 Rcc3 Ra6 R7c5 Ra8 Qc7 Rc8 Qb8 Rf8
B1Bq1NB1/3p2p1/3Pk1N1/r1r5/2R1K1P1/1R2N1qb/3rpb1p/2R1nQrQ b - - 1 2 illegal: No possible last move, all moves rejected
1NB1Q3/pb3n1p/qb2Rp1P/3p3K/1nrPQ1NQ/Rk6/1N5B/2B1q1qq b - - 1 2 legal: proof: f4 c5 a4 e5 g4 exf4 b4 b5 axb5 cxb4 g5 f6 g6 Na6 Ra3 Ke7 Ra1 Rb8 Bh3 Rb6 Bf1 Re6 Bb2 Kd6 Ba3 Re7 Bc1 Rf7 gxf7 Ke7 Kf2 f3 Kg3 d5 Kh4 Qb6 e4 Ke6 c4 b3 d4 f2 c5 b2 c6 g6 e5 Bd7 c7 Bc5 c8Q Ba3 f8B Qd6 b6 Qe7 b7 Bb4 b8N Bd6 Qe1 Nb4 Nc3 b1Q Ba3 Nh6 Nd1 Qc1 Qc2 Nf7 Nh3 Bc8 Ba6 f1Q Nhf2 g5+ Kg4 Bc5 h4 Qc4 h5 Bb6 h6 Qb1 Kh5 g4 Qce2 g3 Ng4 g2 Qh4 Kf5 e6 Kf4 Bb7 Qa6 Re1 Qe4 Bb2 g1Q Ra3 Qeh1 Bc1+ Kf5 Nb2 Rg8 Bc6 Bb7 Bd7 Qe8 Bd6 Rh8 Be3 Ke4 Bc7 Qe7 Bh2 Rc8 Bc1+ Qe3 Rd1 Rc4 Bc8 Qe8 Rdd3 Qe7 Qc2 Qeg1 Qb1 Qd6 e7 Qdg3 Be3 Q3e1 e8Q+ Kf3 Rdc3 Ke2 Bc1+ Qe4 Na4 Kd1 Re3 Qf3 Qg6 Qfh1 Re4 Kc2 Nb2 Qee3 Re6+ Qee4 Ra5 Kb3 Ra2 Qee3 Qe4 Qee1 Ra3+
1n1q4/Q4pKQ/rR1Pk3/3p1Nbr/5Q2/p1p1rRn1/P1RrN1q1/1N2B2B b - - 0 1 illegal: No proof kernel
1R1qn1q1/Rr2p1B1/nQ4B1/1NPq1pK1/2p4N/R2q3B/Q1P1rbp1/3k2Q1 b - - 0 1 illegal: No proof kernel
1QB1q3/PK1p1q1k/p1R3r1/2bb1b2/Q2nN2B/1p1QbR2/P4p2/1NN1r1B1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 d4 exf4 b4 cxd4 b5 a6 b6 Nc6 Be3 Qg5 Bc1 Na7 bxa7 Qd8 Kf2 g5 e4 b5 c4 f5 h4 Kf7 c5 Kg7 e5 g4 c6 b4 e6 f3 c7 b3 e7 d3 Ke3 f2 Kd4 g3 Kc5 d2 Kb6 g2 e8Q f4 h6+ Kh7 h5 f3 Ne2 g1B Rh3 Be7 Bg2 Bf6 Ba3 f1Q+ Bc5 Qf2 Nc1 Qg3 Qe4+ Qg6 Qa4 Qf8 Bf2 Bb7 c8N Bg7+ Nd6 Qge8 Ne4 Qff7 Kc7 Bb2 Bh4 Bd5 Qf1 d1B Qd3 Bc5 Rg3 Bc4 Kb7 Ne7 Rg6 Rd8 Rc6 Bc2 Bh1 Nf5 Bg2 Kg8 h7+ Kg7 Bh1 Rg8 h8B+ Kh7 h6 Bd5 Bd4 Rg6 Bg1 Bbd4 Bg2 Be3 Bh1 Kh8 h7 Nd4 Bg2 Qee6 Bh1 Rdg8 Bg2 Qee8 Bh1 Re6 Bg2 Kg7 h8Q+ Kg6 Qe5 Kh7 Qb8 Re5 Nbd2 Rg6 Rb1 Qf4 Rb2 Qff7 Nb1 Bd1 Rc2 f2 Rc3 Bc2 Ng3 Nb5 Qdd4 Bd2 Ka8 Be6 Rc8 Bd1 Bb7 Bdg4 Rc6 Bd5 Rf3 Bf5 Bc8 Re1 Ne4 Be3 Qd3 Nd4 Kb7
QN1K1bq1/3QR1r1/Q3p2B/1n2R1b1/p4p1p/k1p4P/2PRb1r1/nBB2N2 b - - 0 1 illegal: No possible last move
K7/1r1nRqp1/R2N1r2/Bp3p2/R1p1BPnQ/pP2rb1B/2k3NQ/Q2b4 b - - 0 1 legal: proof: d4 h5 c3 e5 c4 d5 cxd5 exd4 a4 b5 g4 Bc5 a5 Bb6 axb6 hxg4 Kd2 Ke7 Kd3 Kf6 Ke4 c5 f4 a5 h4 d3 b3 a4 h5 c4 d6 d2 Kd5 Kf5 e4+ Kf6 b7 g3 d7 g2 h6 Qf8 d8Q+ Kg6 e5 Kf5 e6 f6 h7 Bd7 e7 Bc8 e8B Ra5 Nf3 g1R Rh6 Qb4 Bh3+ Rg4 Ne1 Bd7 Ng2 Qe7 Nc3 Ra6 Ne4 Qf7+ Kc5 Ra7 Kb6 Bc6 Ba3 Bd5 Bb4 Nd7+ Kc7 Ra6 b8R a3 Ba5 Rb6 Ra8 Rb7+ Kc8 Bc6 Qb1 d1B Nd6+ Ke6 Ra2 Kd5 Qa1 f5 Re2 Rg6 Qh4 Ngf6 Re7 Ng4 Ra7 Rg8 h8Q Rf6 Rg6 Kc5 Q8h7 Bcf3 Q7h6 Nf8 Bc6 Rh8 Be4 Nd7+ Bd8 Kb4 Ra4+ Kc5 Q6h5 Rh6 Ba5 Re6 Bb1 Re3 Rge6 Rf6 Be4 Nf8 Ne8 Nd7 Ra6 Rc3 Nd6 Kd4 Bc6 Kd3 Qh6 Kc2 Be4+ Rd3 Qh8 Nf8 Q8h5 Rc7+ Kb8 Nd7+ Ka8 Rb7 Qg6 Nh2 Qgg3 Ng4 Bd5 Rc3 Qh2 Re3 Be4+
3Q4/3R2pQ/p1Qr2BB/pnPBbp2/3N1Rbk/3qn1N1/r2p2P1/b1N3K1 b - - 0 1 illegal: No proof kernel
1n1Q1Q1R/KR1rp3/pp2pB2/1PkQn3/1N6/b2P3b/1rNp3B/Rq4bB b - - 0 1 illegal: No proof kernel
r3Q3/1B1ppQ1p/2r2Rqb/p2B2Bb/1n2P3/1K1np3/NP2k3/QN3RnN b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 f4 d4 cxd4 Qe2 Nh6 Qf3 Ng8 Qe3 fxe3 Kd1 Kf7 f4 Ke6 c4 a5 Kc2 d3+ Kb3 d2 g4 d1N c5 Nc3 g6 Nh6 f5+ Ke5 g7 Kd4 g8B Na6 b6 Nd5 b7 Qe8 b8N Qf7 f6 Nf5 g5 Qe8 g6 Nd6 g7 Nb6 c6 Nd5 c7 Qg6 Bd2 Nb5 Nc6+ Kc5 Rh6 Qg3 Ne2 Qg4 Bc3 Qg2 Ng3 Qf2 Nb4 Qg1 Nh1 Qg6 Na2 Nf4 Bd5 Nb4 g8Q Ba6 f7 Nfd3 Bf6 Nc3 Bg5 Kd4 c8Q Ne2 Qc1 Ng1 Be2 Bg7 f8Q Rc8 Qff1 Rc6 Qe8 Rf8 Qff7 Rg8 Rh2 Bh6 Rf2 Bb5 Rf6 Ba4+ Ka3 Bd1 Bf1 Bh5 Kb3 Ne1 Ba6 Ned3 Bb7 Rh8 Qb8 Rg8 Qd6 Ra8 Qb8 Nf2 Qc8 Kd3 Qce8 Ke2 Nd2 Ngh3 Qg1 Nfd3 Raf1 Na6 Nb1 Nab4 Qg3 Ng1 Qd6 Nc2 Qa3 Ncb4 Qa4 Nc2 Nb4 Bg7 Qa1 Bh6 Na2 Ncb4 Qc8 Ra7 Qb8 Ra8 Qbe8
1b6/1PQ1RN1K/2k3B1/1bBpQN2/b5p1/p1npr1rp/2B1n1P1/N1R2q1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 exf4 d4 c5 Kd2 g4 Ke1 Qg5 hxg5 cxd4 Kd2 h5 Kd3 a5 Ke4 a4 Kf5 f3 b4 a3 c4 d3 e4 h4 c5 f2 g6 h3 c6 f6 g7 d6+ Kg6 f5 b6 Rh7 e5 Be6 b5 Ke7 c7 Kd7 c8N Be7 b7 Rh4 b6 Bd5 e6+ Kc6 Ne2 Ra5 Ng3 Nf6 g8R Rb5 Re8 Ne4 Qe1 Rh8 Be3 Bb3 Nd2 Nc3 Bc5 Ba4 Rc1 Rb3 Qe5 Bd8 e7 Bc7 Be2 f1B Bd1 Rh6+ Kg7 Re6 Kh7 Be2 Bc2 Bf1 Qd4 Re3 Qf6 Na6 b8Q Nb4 b7 Nba2 Qe5 Ne2 Rh8 Nac3 Re8 Rb4 Nb3 Rb6 Qa8 Bb8 Na1 Rb4 Qa5 Rbe4 Nh5 Rg3 Ng7 Ree3 Qd8 Bb5 Qa5 d5 Nd6 f4 Ngf5 f3 Nf7 f2 Qh8 Ng1 Qe5 Be2 Rd8 f1Q Rd7 Bd1 e8B Nge2 N7h6 Bc4 Bg6 Bb5 Re7 Na4 Nf7 Nac3 Bb1 Bb3 Bc2 B3a4 Qac7+
3bQ3/rp1RnpkP/2bn1rN1/7R/1Nq1pp1Q/5PRr/1K4p1/Q3BB1N b - - 0 1 illegal: No proof kernel
1KNnb3/1pp2b2/3Bqr1Q/kP1n2p1/1p1Q4/RBQ5/qp3rP1/1NNR3R b - - 0 1 illegal: Other
1r1b2RB/7b/K7/n3pq2/rp1BP1NR/Qprpp2k/B1PR4/Q2QbN2 b - - 0 1 illegal: No possible last move, all moves rejected
1K1N2n1/N3r1p1/BBRpP2n/Qp3QP1/p1npR2N/q6k/5r1r/bQ1R4 b - - 0 1 illegal: No proof kernel
2Q3nq/K4p1n/QQ1r4/1Bpkb2p/N3RPrp/n1Np4/R1N4P/qR4B1 b - - 0 2 legal: proof: c4 b5 cxb5 g5 a4 d6 b4 Bh3 a5 Nc6 b6 Qd7 b5 Nb8 Qa4 Qd8 Qh4 gxh4 d4 Bc8 a6 Bb7 axb7 e5 Ra3 exd4 Ra2 Qe7 Ra1 Qd8 Kd2 Kd7 Kd3 Ke6 Kc4 h5 e4 a5 f4 c5 g4 d3 e5 d2 g5 d1Q g6 a4 g7 a3 Nf3 a2 Ne1 Rh6 Be3 Na6 b8N Rf6 b7 Nc7 b6 Nh6 g8Q Ng4 Bg1 Qf3 Nd7 Qc8 b8Q Bg7 b7 Nd5 Kb5 Nh6 Nb6 Qa3 Nc2 Qc3 Qd8 Ng8 Na4 Rg6 Qf8 Rg4 Qa7 Ndf6 Kb6 d5 b8Q d4 Qa6 Kd5 e6 Nh7 e7 Be5 Bb5 d3 e8R Ra7 Re6 Rd7 Qc7 Rd8 Ka7 Rd6 Qcb6 Qd8 Re8 Qf6 Re6 Qh8 Qfc8 Qb2 Nd2 Qb1 Ne4 Qc1 Rb1 a1N Rb2 Qf1 Ra2 Qb1 Bd4 Qb2 Rb1 Qc3 Bg1 Qd4 Ne1 Nc2 Re8 Na3 Nc2 Qa1 Re7 Rc6 Nec3+ Kd6 Ne2 Kd5 Re6 Rd6 Re7 Bg7 Re4 Be5 Nec3+
3B1Q2/2nK1n2/rp2p1RR/Q1p1N3/p2kNBb1/2p1P1q1/r1q1BPRr/1N6 b - - 0 1 illegal: No possible last move, all moves rejected
r1QK1n2/1RppQQR1/1pNN1r1q/Bn1P1kn1/B1Pq2b1/3p3p/1N5B/8 b - - 1 2 legal: proof: g4 a5 d4 g5 b4 axb4 d5 f5 Qd4 e5 gxf5 exd4 h4 g4 Bg2 Bh6 Bf1 Bg5 hxg5 Ra4 Rh3 Ra7 Rh1 Ra8 Kd2 Ke7 Kd3 h5 Ke4 h4 Ke5 g3 f4 b3 e4 g2 a4 b2 a5 b6 f6+ Kf7 g6+ Kf8 f7 Ke7 f8B+ Ke8 a6 h3 a7 Qh4 g7 Kf7 f5 Qg5 Bd2 Qh6 f6 Kg6 f7 Qe3 Nf3 g1Q Bb5 d3 c4 Qd1 Nd4 Qdg1 Nc3 b1N Nd1 Bb7 Bd6 Na6 f8Q Kg5 Nb2 Rb8 a8Q Qc1 Qe7+ Kg6 Ba5 Na3 Ba4 Nc5 Nc6 Ne6 Rg1+ Ng5 Ra2 Re8 Qc8 Nb5 Rg4 Nf6 g8Q+ Kh6 Rg3 Nfh7 Qf7 Nf8 Kf6 Qd4+ e5 Ba6 Qb7 Ra8 Qc8 Nf3 Rg7 Ng5 Rg6+ Kh5 Rg7+ Kg4 Ra3 Qdg1 e6 Qd4+ Be5 Bb7 Qc5 Qd2 Ke7 Rh6 Bh2 Rf6 Kd8 Kf5 e7 Q2f4 e8N Qh4 Ne5 Bc6 Qce7 Qh6 Ra1 Nc3 Bb3 Ba4 Nc6 Nb5 Nd6+ Kg4 Ba2 Bc2 Bb3 Bd1 Ba4 Rf2 Bb4 Qh4 Bc2 Qh6 Ra7 Rf6 Ba4 Be2 Ba5 Bd1 Ne4 Kf5 Rb7 Bg4 Nd6+
Q1n2rQ1/3p2pP/KbB4N/Bn3RRb/Q2N3p/1pN1p2k/3r1R1P/6br b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 axb4 Bh3 h5 Bg2 c5 dxc5 h4 Bf1 Qc7 Bc4 Qe5 Bf1 Qh5 gxh5 Ra5 Bb5 Ra3 Bf1 Ra8 Kd2 Kf7 a4 Ke6 f4 Kf5 c4 b5 a5 e5 c6 b3 Kc3 e3 c5 b4+ Kc4 e2 Kb5 Kg4 h6 b2 f5 e4 h7 e3 f6 Bd6 f7 Bb7 f8R Nf6 a6 Be5 a7 Nd5 c7 Nc6 c8N Nf6 Bg2 Nh5 Nc3 b1R Ra2 Nf4 Rf5 Rf8 Qa4 e1B Nd6 b3 Nge2 Bf2 Rg1 Ne7 c6 Bd4 c7 Bb6 c8Q Bf3 Nd4 Ne2 Bd2 Rb2 Qb8 Nc8 Ka6 Rc2 Bh1+ Kh3 Rgg5 Bg1 Nf7 Bh5 Bc6 Rb2 Be1 Rc2 Nh6 Rd2 Ne4 Nc3 Rb2 Rd1 Rbf2 Nb5 Ba5 Rd2 Nc3 Ne7 Qb7 Rac8 a8Q Rc7 Be4 Nc8 Qbb8 Rc5 Bc6 Rc4 Ne4 Rc1 Nc3 Rh8 Qd6 Rf8 Re2 Bf2 Qd5 Rh1 Qg8 Bg1 Ref2
Kb2RBBN/2k3Pp/p3bbQ1/qn1r1R1p/2Q4P/5Bbp/Q3Rpr1/5N2 b - - 0 1 illegal: Other
1Nr1r3/1QRNp1br/K2k1BRp/4R2B/5p1P/p6n/QQ1qprP1/2Nb4 b - - 0 1 legal: proof: b4 g5 e4 d5 c4 dxe4 a4 b5 cxb5 Na6 f4 gxf4 a5 Bb7 b6 Rc8 b5 Nc5 a6 Ra8 Nf3 Bc8 Ng1 Nb7 axb7 Qd6 Ra2 Qd5 Ra1 Qd8 Ke2 Kd7 b8N+ Kd6 d4 f5 h4 c5 d5 a5 b7 c4 b6 e3 Na3 c3 Kd3 h6 Kc4 a4 Kb5 c2 Bb2 c1R Qe2 f3 Bf6 f4 Qa2 f2 Ne2 Rd1 Nc1 Be6 Be2 f1R Bh5 Rf3 Re1 Bg7 Rb1 Rf1 Rb4 Qf8 Rc4 Rd2 Rc7 Rdf2 Nc6 Rc2 b8Q Bf5 b7 Qf7 Bd4 Rff2 Rc8+ Kd7 d6 Qe8 Nc4 a3 Re2 Ke6 d7 Bg4 d8R Qd7 Ne5+ Rc4 Rf8 Rh7 Rf6+ Kd5 Re1 Bd1 Rg6 Nf6 Kb6 Qd6 Nd7 Ne4 Bf6 Ng5 Qc7 Rb8 Ka6 Nh3 Qb6 Ke6 Qbb2 Qd2 Re2 Kd6 Re1 Rd4 Re2 Rd3 Re1 Rb3 Rc7 Rd8 b8Q Rb5 Qb7 Rc5 Ncb8 Re8 Re2 Rc4 Rc5 Rc3 Ra5 Rcc8 Rc5 Qe1 Rec2 e2 Re5 Qd2 Rc7
Q2r1r1k/3RPr2/2pR2nb/p3RB2/2qp1n2/1N1pQ1K1/2P1QBp1/1BN2r2 b - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 h3 g5 Qd2 g3 Qf4 g2 Bd2 g4 Bc1 g3 Qd2 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 e4 Kf7 b4 Kg7 f4 a5 f5 d5 g5 h5 f6+ Kh7 b6 d3 e5 d4 b7 c6 b5 h4 e6 h3 b6 h2 f7 Qc7 g6+ Kg7 e7 Qf4 Nd2 Nd7 b8R Ne5 b7 Qe4+ Ne2 g1R Rd8 Ra6 b8Q Qg2 Nb3 Nc4 Qf4 Na3 Be3 Qf3 Bf2 Qd5 Nec1 Ra8 Qe3 Nf6 Qde2 Nc4 Rd7 Rd8 Rb1 Rg8 Ra1 Kh8 g7+ Kh7 Rb1 Nh5 Rb2 Rh8 g8B+ Kg7 Rb1 Nf4 Rd6 Rg2 Rg1 h1R Rb2 Rgh2 Bh3 g2 Bf5 R8h7 Rf1 Kh8 Rg1 Bg7 f8Q Ne5 Rb1 Rd7 Qa8 Rd8 Bf7 R2h3 B7e6 Rf3 Rb2 R1h5 Rh1 R5h6 Rh5 Neg6 Na1 Rh3 Bg4 Qb5 Bh4 Rf3 Re5 Bf8 Ba2 Rh5 Bb1 Qa6 Rb7 Rf5 Nab3 Bh6 Rbd7 Rff8 Bf5 Qc4 Bg3 Rhf7 Bh4 Rh3 Kf2 Rh1 Kf3 Re1 Bf2 Rf1 Kg3
3Nqqr1/1pK4R/6pp/1R1Qr2k/1PNbQN2/b2pQ2B/2p2BpP/1B1n4 b - - 0 2 illegal: No proof kernel
2Kb4/q2Q1NR1/r2B1p2/q1RQ4/k1BbpPn1/1NBbNr2/n3P3/bRq1b3 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 Kd2 e5 Kd3 d5 h4 Kd7 f4 a5 c4 g5 b4 g3 c5 g2 h5 a4 b6 Kc6 h6 Kb5 b7 f6 c6 a3 c7 e4+ Kd2 d3 Ke3 g4 Kd4 d2 h7 a2 Nh3 g1B+ Nf2 g3 Bh3 g2 Bb2 Na6 b8B Nh6 Bc3 Be7 Be6 Ng4 Rh5 Bh2 Rg5 g1B Rg7 Bg3 Bg8 Bb7 c8R Qa5 Bd6 Bd8 Qb3 d1Q+ Nd2 Qc2 Rb1 a1B Be6 Rg8 h8N Qc1 Nf7 Rh8 Qd1 Rh3 Nb3 Ka4 b5 Nb4 Kc5 d4 Bc4 d3 Rc7 Qa7+ b6 Na2 Rc8 Ba6 Kc6 d2 b7 Bh4 b8Q Rf3 Qc7 Qa3 Kd7 Q3c5 Nh1 Bd4 Ng3 Qa5 Nf5 Be1 Ne3 Bb5+ Ke6 Ba6 Qd7+ Bb5 Rc6 Ba6 Rc5+ Bb5 Qc1 d1Q Qd2 Qc1 Qd3 Qb8 Qd1 Ra6 Qd2 Qa7 Qd1 Be5 Qd5 Bd4 Q7c6 Qa8 Kd7 Qa7+ Kc8 Bb2 Qd7 Ba1 Q5b7 Ka3 Bd5 Bd3 Qbc6 Bh4 Bc4 Be1 Rb5+ Ka4 Qd5 Qb4 Rc5+ Qb5 Qe7 Qa5 Qd7+
qNq5/1NrpRB1r/1p1n2KN/1Pn1Qnn1/3P3Q/R6B/2bq1b1B/2kRb3 b - - 0 1 illegal: No possible last move
1b2QK2/3Rr1BN/4pb2/Q3R1pk/bNqrP2b/1qRnN2B/q5P1/1nBn4 b - - 0 1 illegal: No proof kernel
1QNQ1q2/Nr1Br1q1/2bp3R/Rr2rpQ1/3BkP1b/3P1R1n/1r2B1Kn/5r2 b - - 0 1 illegal: No possible last move, all moves rejected
1BQ2B1R/2rp2p1/1RbPB1N1/bb4K1/R3q3/N3n3/k2n1nP1/1NrQr1bn b - - 0 1 illegal: No proof kernel
1B1Rr3/k7/2B3p1/pnb4n/RnrQ4/Nb3NPr/PKR2n1N/Q2rqb1B b - - 0 1 illegal: No proof kernel
2B2k1q/Bpq2p2/2Qr1Pb1/1P3qNp/KQ4n1/N3nb2/1R1bQ2r/NB1R3n b - - 0 1 illegal: No proof kernel
bNnr4/2ppqp1R/kqB1b2b/N1PBBP1K/q4r2/5Q2/4RQr1/4NRn1 b - - 0 1 legal: proof: d4 e5 h4 exd4 a4 b5 axb5 g5 Be3 gxh4 Bg5 Bg7 Bc1 Bf8 g4 a5 b4 h5 c4 h3 f4 d3 Kf2 h2 Kg3 a4 e4 a3 c5 d2 b6 a2 e5 Qf6 b7 Kd8 b5 Ra4 b6 Bd6 g5 h4+ Kg4 h3 e6 Nc6 b8Q Nge7 g6 Nd4 g7 Ne2 Nf3 Ng1 g8B Qe5 Qb3 d1R Bb5 Rd2 Bh7 Rg2+ Kh4 Qe4 Nbd2 Qb4 Rb1 a1Q Bb2 Be5 Qb7 Bg7 Bc6 Bh6 Nc4 Qaa3 Qa6 Bb7 Na5 Kc8 Qe2 Ba8 Qf2 Rd8 Kh5 Kb8 b7 Ka7 Bf5 Qb6 Rf1 Ka6 Bfe4 Nc8 f5 Qa1 Bed5 Rf4 e7 Qa4 e8R Ne2 Rhg1 h1Q Bh8 Qh2 Rh1 Ng1 Qa3 Qg3 Bd4 h2 Ne1 Qe3 Bf6 Qe5 Qaf3 Qe7 Be5 Nh3 Rhg1 h1B Rh8 Rg6 Rg2 Ng1 Q2g3 Rgg8 Re2 Rg7 Qff2 Be4 Qc3 Rg2 Qcf3 Bd3 Rh7 Bc4 Be4 Be6 Bed5 Qb2 Qg4 Qbb3 Qgf3 Qb6 b8N+
2KBbkb1/N5B1/1NB4N/3Q1p2/n1rRQP1r/p1n2Q1r/P3pb1R/bn3q2 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 Ke2 b5 Ke3 h5 Kf4 f5 Ke5 a5 c4 a4 d4 b4 g4 b3 f4 a3 d5 e3 g5 b2 d6 e2 g6 e1B c6 h3 c7 h2 c5 h4 g7 h3 c6 Na6 Bb5 Nf6 g8Q Nc5 Nd2 b1N Qd5 Bd7 c8N Rh4 c7 Ra4 Na7 Bg7 c8Q Kf8 Qcb7 Bf2 Bc6 Be8 d7 Rc4 Ngf3 Na4 Ke6 Ne4 Ne5 Nec3 Nf7 Qa5 d8B Qb5 Nh6 Bf6 Rg1 h1B Q1f3 h2 Bb2 Bg2 Rd1 h1R Qfe4 R1h3 Rh1 Bf3 Rh2 Bfh5 Qa8 Bef7+ Kd7 e5 Qf3 e4 Kc8 e3 Qde4 Bg8 Qd5 Rd4 Nc4 Be8 Nb6 Qf1 Qfe4 e2 Qf3 Nd2 Rd1 Ndb1 Rd2 Rc4 Rd4 Bg7 Qde4 Bf6 Qb7 Bg7 Qd7 Be5 Qdd5 Nb5 Rd1 Bed4 Bc1 Ba1 Bb2 N5c3 Rd3 Nb5 Be5 N5c3 Rd4 Nb2 Bef6 Nba4 Bg7+
3nB1r1/B2b2nq/p2K2n1/NQ1R2p1/4rnrN/4p1P1/1N1RP1bb/B1QQ2k1 b - - 0 1 illegal: No possible last move, all moves rejected
1n2q2B/4QQR1/1kr1NKp1/2bR1pPp/2N4P/bq2QR2/1B1r2bb/nB5n b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 Kf2 Kd7 Kf3 f5 h4 h5 g4 c5 d4 Kc7 e4 a5 b4 g6 d5 c3 e5 a4 b6+ Kb7 e6 c2 b5 c4 g5 a3 e7 a2 e8Q c3 d6 Ra5 d7 Be7 Rh3 Ba3 Nd2 Bb2 Nc4 Nf6 Qe3 Qe8 d8R Ne4 Rd5 Ng3 Qde1 Nh1 Bd3 Ra6 Ne2 Ba3 Bb2 c1B Nd4 c2 Ne6 Bc5 Rb1 a1N Q1e2 Ka8 b7+ Ka7 Rg3 Rc6 b6+ Ka6 Rh3 Bd2 Rd1 c1B Bb1 Bdb4 Rd7 Be1 R1d5 Bg3 Rg7 Bh2 Rg3 Qf7 Rh3 Rd8 Qe1 Qe8 Q1e2 Nd7 b8B Bb7 B8e5 Nb8 Rg3 Ba8 b7 Kb5 Rgd7 Ka6 Bh8 Ka7 Rg7 Rdd6 Kg2 f3+ Kh3 f2 Rf3 Bd2 Qe1 Bb4 Q1e2 Ba3 Qe1 Nd7 b8Q+ Ka6 Qc7 Nb8 Qe7 Rd7 Q1e2 f1Q+ Qg2 Qg1 Qg3 Rd8 Qgc7 Qd1 Qf7 Qb3 Qce7 Rdd6 Re5 Rd2 Rd5 Nf2+ Kg2 Bg1 Kg3 Nh1+ Kf4 Bh2+ Rg3 Bb7 Ke5 Ka7 Kf6 Ka6 Na5 Kb6 Rh3 Ba6 Rg3 Bf1 Rf3 Bg2 Nc4+
1kb1R3/1Np1b3/1pP1n2n/1PrQB3/4b2p/Br3nR1/KNNQ1qQ1/1B3bq1 b - - 0 1 illegal: No proof kernel
Br6/2qBN1R1/qb1nrR2/1b2nnQp/1k1rn2N/2B1ppN1/4RP1P/6QK b - - 0 1 illegal: No proof kernel
1K4Q1/5n2/1bB4r/1pbqpbpN/1n1q2Pk/R1B1nr1R/4P1nQ/RN3Q1B b - - 0 1 illegal: No possible last move, all moves rejected
1Nk2r2/r1B2bbp/BpqR1N1n/Q3R1b1/1nbpBq1n/KP1PR3/3Q4/N7 b - - 0 1 illegal: No proof kernel
6r1/r5Q1/B5Rp/qB1Rp3/1nbrP2N/kQ4pK/nb1NrQPR/3nB2n b - - 0 1 illegal: No proof kernel
6B1/pqR1bRQp/1r3pR1/7k/K1Q1b2B/3bbB1P/P2Qnn2/1nN2nrN b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 bxc5 g5 Qh5 gxf4 Qe2 Qa5 Qd1 Qd8 d4 e5 Kd2 b5 Kc3 e3 Kb3 e4 c4 e2 g4 e1N d5 f3 g5 f2 d6 e3 g6 e2 c6 b4 g7 Qb6 h3 Bb7 c7 Nf6 g8B Nc2 c5 e1B c6 Ne3 Qd2 Be7 Bg2 f1B Ne2 Ne4 Bf3 Nf2 Ka4 b3 Nbc3 b2 Nd1 b1N d7+ Kf8 d8R+ Kg7 c8Q Kg6 c7 f6 Rd7 Nc6 Qf8 Rb8 c8Q Nd4 Qc4 Be4 Rh2 Kg5 Rg2+ Kh4 Rg4+ Kh5 Qg7 Qb7 Rc7 Bd6 Rf7 Be7 Ng1 Bfd3 Ne2 Nf1 Rg6+ Ng4 Bb2 Bf2 Bc1 Be3 Nf2 Qd5 Nh1 Rb6 Ba3 Qa8 Nc1 Ne2 Bd6 Qb7 Bg3 Ba3 Rd7 Bf8 Bh4 Be7 Bd5 Rc8 Bg8 Rc5 Rc7 Rg5 Rd7 Bd6 Rf7 Be7 Bg2 Nf2 Bf3+ Rg4 Qb3 Nf4 Ne2 Na3 Rc1 Nb1 Rc7 Bf8 Qdb4 Be7 Nc1 Ne2 Q3c4 Bf5 Bc6 Rg1 Bg2 Bfe4 Qe1 B7c5 Qd2 Be7 Bf3+
2r1BBrn/N2b1Qn1/2QN2pb/K4pn1/3p2Rp/b1QP1q1P/k5RB/4q1R1 b - - 0 1 illegal: No possible last move
1b6/bp1p1Qq1/1P1PRN1r/1N2Kp2/2k4p/R3n2B/2NQ1BB1/1brqr1Rn b - - 0 1 illegal: No proof kernel forced: wxLB
2K1R1nR/1B3b2/N2N2Q1/2p2rpp/5BRP/b1p5/2kqr1Pr/bBqnQ2N b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 Kf2 Kd7 Kf3 Ke6 Kg4 a5 d4 g5 b4 c5 e4 h6 d5+ Kd7 Kf5 c3 e5 f3 d6 a4 e6+ Ke8 d7+ Ke7 b6 a3 b5 f2 b7 a2 b6 Na6 b8N Nc7 b7 Nd5 Na6 Kd6 Bc4 f1Q+ Bf4+ Kc6 b8Q Bd6 Qd2 Qc1 e7 f6 Ke6 f5 e8B Ne3 h3 Nd1 Na3 Bc7 Rh2 Ba5 Qb1 Bb4 Nb5 Ba3 Ne2 Rb8 Nd6 Rb2 Qbc2 Rh7 Rb1 a1B Ba2 Kb6 Bh5 Ka5 Bf3 Bb7 Qcd3 Ka4 Ng3 Rc2 Q2e3 Re2 Nh1 Bc6 Be4 Bb5 Bb7 Bc4+ Ke5 Bf7 Rb3 Qc8 d8R Qd7 Re8 Rh8 Qd5 Qd8 Qe6 Rh7 Qg6 Rh8 Bg3 f4 Rb6 f3 Bf4 f2 Rb4+ Ka5 Re4 f1R Qg3 Rh7 Qe1 Rf3 Nb5 Qdd2 Nd6 Bc4 Kf5 Ka4 Ke5 Rd3 Kf5 Rd5+ Ke6 Rh8 Kd7 Rf5 Kc8 Rh7 Bb1 Kb3 Ba2+ Kc2 Be5 Rd7 Rg4 Bf7 Bf4 Nf6 Rh8 Ng8 h4 h5 Rh3 Rde7 Rd3 R7e3 Rd4 Rg3 Re4 Rh3 Re8 Rh2 Bb1+
4B1q1/Bnr1kNpb/qNq2r2/7K/p2B1QP1/P1p2R1Q/1np1nb2/3RNQ2 b - - 0 1 illegal: No proof kernel
b3q1kn/1BQp3Q/1N1PR2p/8/Q3p1n1/BqRN2R1/1p1r3P/1KbN1rrq b - - 0 1 illegal: No proof kernel
BQ1rQ3/brp2q2/nBN3p1/1Rrp4/Q3pRn1/2nRP3/B1P4q/3bKNk1 b - - 0 1 illegal: No proof kernel
B2bbnqr/N1rr3B/2p3bQ/3Rp3/1pn1RQ1p/Q1NKPRbP/8/B6k b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g3 axb4 g4 fxg4 f4 Kf7 a4 Kf6 d4 Kf5 Kd2 Ke4 a5 e5 f5 h5 a6 b5 h3 g5 f6 h4 e3 b3 a7 b4 f7 c6 d6 b2 d5 g3 d7 g4 d6 g2 Bb5 g3 Nf3 g1B Ra5 g2 Qb3 Ne7 Qa3 Nd5 Nd4 Be7 f8Q Nb6 Qh6 Qg8 d8R Bf2 d7 Bg3 Rf1 g1R Rf3 Rd1+ Kc2 Rd3 Bc4 Rh7 Nb5 Rf7 Rf8 Bd8 Be6 Nc4 Bf5+ Kd5 Bh7 Rg7 R3f5 Ke4 Bd2 Rf7 Bc3 Rd5 Rg5+ Kf3 Rg4 Kg2 Re4 Kh1 Bd4 Rg7 Kd3 Rf7 N1c3 b1B+ Ke2 Rg7 Rf3 Bc2 Na2 Rd6 Ba1 Rd4 Nac3 Rd1 Ref4 Bg6 Re4 Be8 Nd4 Ba6 Rd5 Bb5 Qf4 Ba4 Ndb5 Bc2 Red4 Bcg6 Re4 Na6 Qh6 Nc5 Qf4 Rc8 a8B Ne6 Na7 Rc7 Qh6 Rf1 Kd3 Nf8 Rf6 Rf5 Rf7 Rh5 Rf3 Bf6 d8Q Rgd7 Qe7 Bg5 Qd6 Bd8 Qf4 Bgf7 Bf5 Rh8 Bh7 Bg6 Qdf6 Na5 Q6g5 Nc4 Qh6
r1bn4/1b2KQB1/3N4/Q4ppr/Qq1pnP2/1bpRN1bB/Rk1PRN2/1r6 b - - 0 1 illegal: No proof kernel
7Q/BbR2B2/1rp3n1/3rBr1Q/KQP2p2/NpNkp3/q2nPr2/2qRR1b1 b - - 0 1 illegal: Other
8/1ppr1q2/1nRp2pr/B3b3/bPrNBQ1r/k3Q1R1/1nP4N/1KB1Nq1R b - - 0 1 illegal: No proof kernel
B1Nr4/K2n1ppq/2bp2R1/2p3Pb/2PBnbN1/RN3R1Q/rpk3Q1/4r2Q b - - 0 1 illegal: No proof kernel
Q2R1Q2/1RkN3p/p1nprBn1/7P/Qbp1r2N/qpB1r2b/2P3B1/1K2R1n1 b - - 0 1 illegal: No proof kernel
1N1nBQ1K/1p1pn3/b2B2rp/pPBn1RN1/4R3/r1k2rQP/1p6/2bNq2R b - - 0 1 illegal: No proof kernel forced: wxLB
1Qb4r/BN1pbn1N/pk2qpB1/3Rp2n/Brn3p1/8/P2Q1NPR/2KR3r b - - 0 1 illegal: No possible last move
3R1b1k/1r1BpK1p/q1Q1PR1P/n1p1Q1BB/2n1N3/2q3NN/b2np1rp/6R1 b - - 0 1 illegal: No proof kernel
3QR1k1/ppB1b3/4prpq/2n1R1P1/nN1pPQ1r/KQ2R2q/1N4b1/3B1N1n b - - 0 1 illegal: No possible last move, all moves rejected
R2rn3/1B1kpNb1/3B2KB/1nQ1p1p1/2pq4/R1PnQQ1p/qR2P3/1rNb4 b - - 0 1 illegal: No proof kernel
5QQ1/nQpp1B2/1N2rp1B/bRPbR3/1N1rn2K/2q3pp/2n3PB/1k1R2n1 b - - 0 1 illegal: No proof kernel
1Q1Nr1n1/1pp2R2/2P3rk/p1K1R1pn/1P1NQ1pn/1b1Qq1Rn/3BB3/b3B3 b - - 0 1 illegal: No proof kernel
N3nR2/b4KQp/pQr3pQ/BB3p2/P1p2BP1/p1NR1k2/1q3r2/q2bn2N b - - 0 1 illegal: No proof kernel
1Rn5/1kr2PN1/N3n3/2n1p1N1/2Q1P1nr/4BN2/2r1R1B1/bKBq2bN b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 f5 c4 fxg4 cxd5 Kd7 h3 Ke8 b4 gxh3 b6 a5 bxa5 Be6 a6 Bf7 b7 Nc6 b8B Be6 Bb2 Bc8 Bc1 Bb7 axb7 Qc8 Qc2 Qd7 Qd1 Qd8 d4 Kd7 Kd2 h5 Kc2 g5 f4 h2 e4 h4 f5 h3 d6 g4 d5 g3 f6 g2 f7 Ra2+ Bb2 Rh4 Qe2 Bg7 Nd2 Nd4+ Kb1 c5 Bc1 c4 Ndf3 c3 Ba7 Ne6 b8N+ Kc8 d7+ Kb7 d6 Rc2 Qc4 Bd4 Ne2 g1B Ra2 Nf4 Ra6 e5 Bd2 Ra2 Ra3 Bgf2 Bg2 Ne7 Ng3 Nc8 Re1 h1R Bb6 h2 Ra8 Rg1 Na6 h1N Ba7 Bfe3 Qe2 Rf1 Qd3 Rf2 Bb6 Ra5 Qc4 Rc5 Ba7 Rc7 Bc5 Re2 Ba7 Nf2 Nh1 Ng4 Bc5 Bf2 Bb6 Re3 Re2 Rd3 Bc5 Bfe3 Ba3 Bg1 Be3 c2+ Ka2 c1N+ Kb1 Nb3 Bac1 Qe8 d8N+ Kb6 d7 Nc5 Ng3 Rc3 Ne6 Kb7 Neg5 Qd8 Nh1 Rc2 Bcd2 Qf8 Bc1 Qd6 d8N+ Kb6 Qd5 Ba1 Qc4 Qd1 Nde6 Kb7 Ng7 Nfe6 Rb8+
3Nb2R/1bKP2Bp/b5Rq/1rR2R2/4n3/N1Q1Pb2/kNbq1R2/r5B1 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 hxg5 a6 b4 Bc5 b6 Bf8 e3 Bd6 b7 Nh6 b5 Ng8 b6 Bc5 Bb5 Bf8 c3 axb5 Ra3 c5 Ra4 d5 Ra3 c4 Qe2 d4 Qd1 Nc6 Ra6 Bb4 Ra4 d3 Ra1 Nd4 cxd4 c3 Kf1 c2 Ke1 Bc3 dxc3 Ra7 Rh6 Ra3 Rh1 Ra8 Kd2 Kd7 b8B Ke6 g4 Kd5 g6 Kc4 b7 Kb3 g5 f5 g7 b4 g6 f3 c4 f4 d5 f2 c5 f1B d6 f3 c6 f2 c7 Nf6 g8R Be2 g7 f1B d7 Ne8 Bb2 Ra2 Qe1 Nf6 Rh5 Ne8 Nh3 Nf6 Nf2 Bh3 Na3 Bhf1 Nd1 Bg4 Rf5 Bh5 Bd4 Qe7 Nb2 Qd6 Rd8 Re8 g8R Re5 Rg7 Rc5 Rh8 Be8 Be5 Qf8 Rg6 Qh6 Bh2 Bg2 Bg1 Rb5 Ba7 Bh1 b8N Ba6 c8R Bhb7 Rb1 Ra1 Bd4 Ka2 Rcc5 Qf8 Nc6 Qh6 Nd8 b3 Kc3 d2 Kc4 d1B Nd3 c1Q+ Qc3 Ne4 Bg7 b2 Kd4 Bc6 Ke5 Qd2 Ke6 Bh5 Rbf1 b1B R1f2 Bf3 Nb2 Bc2 Ke7 Ng3 Ke6 Bcd5+ Kd6 Ne4+ Kc7 Bc6 Re2 Bcb7 Rf2
N3R1n1/1NK3P1/r1B2B2/1B2nb1p/6P1/2B1Rq2/Q1prnR2/r2k2qB b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 a5 b4 g5 hxg5 Ra6 Rh2 Ra7 Rh1 Ra8 Na3 axb4 Nb1 Bc5 Bb2 Be3 Bc1 Ba7 b6 Kd7 bxa7 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 g4 h5 g6 f5 g7 b3 e4+ Kb4 d6 f3 d5 c4 d7 f2 Kd6 c3 e5 c2 e6 f4 e7 b2 e8B Kb3 Nc3 b1N Ra3+ Kb4 Nh3 f3 Nb5 Ne7 Re3 Qa5 d8R Ba6 Nf4 Nd7 Bb2 Bc8 Nd3+ Kb3 Nc7 Ne5 Rh2 Ng8 Bc3 Qb6+ Bc6 Bf5 Re8 Qb7 Be2 f1Q Rf2 Qg1 Nc5+ Ka3 Beb5 Ka2 Ba1 Nc3 Qb1+ Ka3 Bb2+ Kb4 Qa2 Ne2 N7e6 Qf7 Nb7 Qf6 Bd4 Rd8+ Kc7 Rh6 a8B Rg6 Rg2 f2 d6 f1R d7 Ra1 Rf2 Rh6 Kb6 Qf7 Nc7 Qd5 Bb2 Qf3 Bd4 Rd6 Bb2 Rd2 Bd4 Rb8 d8B Rc8 Bf6 Rd8 Qa7 Rd6 Bc3+ Kb3 Ba6 Ka2 Bb5+ Kb1 Qa2+ Kc1 Nd5 Re6 Kc7 Kd1 Nb6 Rc1 Nd6 Rb1 Bab7 Ra1 Na8 Qfg3 Bh1 Qf4 Bbd5 Qf3 Nb7 Ra6 Bdc6
B5Qr/3n1BK1/7r/RN1r4/1q2NNPk/1bPN1b1B/b5pp/N4rR1 b - - 0 1 legal: proof: b4 b5 d4 a5 f4 e5 fxe5 c5 a4 cxd4 g3 Qe7 Bd2 Kd8 axb5 Qg5 b6 Ke8 b5 Qd8 Bb4 axb4 Na3 g5 Nc4 f5 Na3 f4 Nb1 f3 Bh3 g4 Bf1 Nc6 Qd3 Bh6 Qd1 Bf4 gxf4 Nce7 h3 g3 Ra2 Nf6 Ra1 Ng4 hxg4 Ng8 Kd2 Kf7 Kd3 Kg6 Ke4 h5 c3 d3 b7 f2 b8N d2 f5+ Kg5 f6 b3 b6 d6 b7 h4 f7 b2 f8N h3 e6 d5+ Ke5 d4 e4 h2 e7 d3 e8B Kh4 Qb3 d1B Nbd7 d2 b8N Rh6 Ne6 Qa5+ Nec5 Ra7 Nh3 Rg6 Bf7 Qb5 Rg1 Qe2 Nc6 Ba6 Nb4 Qc4 Ncd3 Rc6 Nc2 Rh6 Nhf4 Nf6 N7c5 Kg5 Ra5 Bb7 Bh3 f1R Nba3 b1B Nb5 g2 Na1 Qb4 Ke6 Ba2 e5 Kh4 Ne4 Bd5+ Kf5 Rd7 e6 Bf3 e7 d1R e8B Rd8 Bc6 Nd7 Ba8 Rdh8 Qc4 Rd2 Qc8 Bdb3 Qg8 Rh5+ Kg6 R5h6+ Kg7 Rdd1 Ndc5 Rd5 Ncd3
3kNqqn/1B1R4/p2q1qBp/8/5N2/1bNB1P1q/pKNRQ1Pn/3N4 b - - 0 1 legal: proof: f4 b5 a4 bxa4 c4 e5 Nf3 d5 cxd5 a6 Ng1 e4 Qb3 f5 Kd1 Ra7 Ra3 Rb7 Qa2 Rb6 Kc2 Re6 Qb3 Re5 fxe5 f4 Ra1 f3 Kc3 f2 Qd1 Be7 Kc2 Bf8 h4 g5 b3 g4 Ba3 h6 Be7 g3 Bf6 Be7 Bg7 Bg5 hxg5 Rh7 Bf8 Rf7 Kc1 Rf3 exf3 Qe7 Be2 Qd8 Bc5 f1Q Bf2 gxf2 d4 c5 d6 c4 b4 a3 b5 a2 b6 c3 b7 e3 d5 c2 e6 Qa5 g6 Qd2+ Kb2 Kd8 e7+ Kd7 e8B+ Kd8 d7 Nf6 g7 Nc6 b8N Nh7 g8B Ng5 Nc3 Bb7 Bd3 e2 Beg6 e1Q Nh3 Ne4 Qe2 Ng3 Rd1 Qg5 Rd2 Ne7 B8h7 Qd1 Nc6+ Kc7 d8N Qf6 Bge4 Ng6 Nf7 Nh8 d6+ Kc8 Nb4 Bd5 Beg6 Bb3 d7+ Kc7 Nd6 Kd8 Bge4 Qfe1 Bhf5 Nf1 Bb7 Nh2 Ne8 f1Q Bg6 Qg3 Nf2 Qh3 Rg1 Qde1 Nd1 Qeg3 Rh1 Qff2 Rg1 Qc5 Rh1 Qcf8 Rf1 Qge5 Rf2 Ke7 d8N Qg8 Ne6 Qd6 Nf4+ Kd8 Rf1 Qff8 Ne3 Qdf6 Rb1 Q8d6 Nd1 c1Q+ Ka1 Be6 Nc2 Qca3 Rb3 Qac5 Kb2 Qcf5 Rb4 Bb3 Rc4 Qff8 Rc7 Q5f6 Rd7+
1B6/Nrq1n1Bq/2k2bRn/r2NnQ1B/3Pr1r1/2K5/b1N1r1P1/N1R1N3 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 f4 Kd7 d4 e5 Kd2 h5 b6 c5 b7 h3 d6 e4 f6 h2 f5 c4 f7 h4 f6 h3 Ra4 e3+ Kc2 e2 Nc3 e1R Bf4 Qc7 Qh5 Kc6 d7 Be7 f8N Ra5 f7 Re4 Be2 Nh6 Nd5 c3 Nf3 Rg8 Rc1 h1R Qf5 h2 Ne1 Rg4 Ne6 Bf6 f8B b3+ Kd3 b2 Bg7 b1R Nc5 c2 Nb3 Rg1 Kc3 h1Q Na1 Rf1 Bf3 Rf2 Ra2 Rfe2 d8N+ Kb5+ Nc6 Be6 Be5 Qh5 Bg3 Qg6 Ra4 Qh7 Rc4 Bf7 Ncb4 Nc6 b8N Ne7 Rc6 Rb2 Rd1 c1N Nbc2 Nd3 Rc1 Ne5 Bf4 Rg6 Bh5 Rg4 Bg3 Qd8 Rd6 Qc7+ Nc6 Rb4 Nf4 Ba2 Nd5 Bh4 Rg6 Bf6 Qf4 Ka6 Qf5 Rb7 Nf4 Kb6 Bh2 Qb8 Na7 Kc7 Nd5+ Kd6 Nb5+ Kc6 Bg3 Qc7 Bf4 Rg5 Na7+ Kd6+ Nc6 Qc8 Bh2 Rgg4 Bg1 Nc4 Na7 Qb8 Nc8+ Kc6 Bh2 Qd6 Bg3 Qd8 Bc7 Ne5 Bb8 Qc7 Na7+
3N4/NB1b1n2/BB1R1Q2/1B2rR2/4q2P/k2q2nr/bnb1Pn2/KN1Bq3 b - - 0 1 legal: proof: g4 b5 d4 c5 b4 cxd4 f4 a5 a4 e5 fxe5 h5 axb5 hxg4 Nc3 a4 Nb1 Bc5 Bb2 Bb6 Bc1 Ba5 bxa5 Qf6 Ba3 Qb6 Bc1 Qd8 Kd2 Ke7 c4 f5 Kc2 g5 Kb2 d5 h3 a3+ Ka2 f4 a6 g3 c5 d3 b6 d4 b7 d2 c6 f3 a7 d3 c7 g4 e6 Kd6 e7 Kc5 e8B Kb4 Qe1 f2 Ba4 g2 Bc2 g3 Nc3 d1B Bf4 d2 Be3 Nd7 b8N Nh6 Bd4 Ne5 Bf5 Nd3 Bb6 Nf7 Nf3 g1N Nb5 g2 Nc6+ Ka4 Kb1 Bb3 h4 d1B Nd2 Rh5 Bd7 Nh3 Be8 g1Q Bg2 f1N Be4 Qdd4 Qf2 Qg6 Nd8 Nb2 Qf6 Re5 Bc2 Qge4 Rg1 Bf5 Rg5 Nf2 c8B Qdd5 Bc6 Bd7 Rf5 Qd6 B8b7 Rc8 Ba6 a2+ Kc1 Rc7 a8B Qdd5 Na7+ Ka3 Bcb5 Rc3 Bac6 Rh3 Bcb7 Ng3 Rb1 Na4 Rb2 a1Q+ Rb1 Qc3 Rb2 Qdd4 Kb1 Ba2+ Ka1 Qdd5 Bb3 Qc1+ Rb1 Nb2 B3a4 Qc3 Rc1 Qa5 Rc6 Qdd3 Rd6 Qab4 Bc2 Qa5 Bb1 Ba4 Bc2 B4b3 Bd1 Bc2 Nf3 Qe1 Nd2 Kb4 Nb1 Kb3 Nc3 Ka3 Nb1+
N1n1NRn1/1r2B2P/b7/1R2NB1P/1N1Nbk1q/K3Q3/2rrqr2/1B2b2n b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 d4 Kd7 Kd2 Kd6 Kc2 f5 Kb3 g5 e4 c5 h4 g4 e5+ Ke7 d6+ Ke6 b6 g3 h6 f3 b7 g2 d5+ Kf7 h5 f2 e6+ Kf6 e7 Ke5 e8B f4 d7 f3 d6 Qg5 d8N Qh4 d7 Nc6 b8N Ra7 h7 Ba6 Bd3 f1R Nd2 f2 Rb1 Rb7 Qf3 Na7 Ne4 Nc8 Ne2 g1Q Qe3 Qgh2 Bg6 c4+ Kb2 b3 Bf5 Be7 Ne6 Bb4 d8N Be1 N2d4 c3+ Ka3 b2 Nc7 c2 Na8 Qg2 Bd2 c1R Bb4 Rc2 Be7 Qf3 Rg1 Qe2 Rg7 Rd2 Rf7 Rc2 Rf8 Rd2 Qh3 Kf4 Nbc6 Rc2 Nb4 Rd2 Ra1 b1B Nd6 Rc2 N8c6 Rd2 Bc4 Be4 Bd3 Nb6 Rf7 Nf6 Rb1 Rc8 Ne8 Ng8 Ne5 Rc3+ Rb3 Nc8 Bb1 Rcc2 Nbc6 Rh1 Nac7 f1N Rf8 Ng3 Na8 Rh2 Rb5 Nh1 Nb4 Rf2 Qe3+
N4KNR/1q1R4/BNNQr3/PBnn1kn1/b1bb4/1rr5/4R1nP/5Nb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h6 g4 Nd7 g6 Nb8 g7 Ra5 Na3 Ra7 Nb1 Ra8 g5 Bd7 g6 Qc8 Bb2 Qd8 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Ke3 c5 Ke4 e5 a4 b5 d4 c4 f6 b3 Kf5 g4 f7 e4 d6 e3 a5 g3 d5 e2 Qd3 e1N Bg2 c3 Qf1 c2 Na3 c1R Qd3 b2 Ne2 b1N Bf1 b4 Nc4 b3 Ra2 g2 Ng3 g1B Re2 Nf6 g8N b2 g7 Ra6 Kg6 Rh3 Qd1 Be7 f8R Ng2 Kf7 Qc7 Re8 Bd8 Kf8 Qb7 Qd3 Bd4 Rg1 B8b6 R8e7+ Kd8 d7 Ne4 Qd2 Kc7 d8N+ Bd7 Nc6 Nbc3 d6+ Kc8 Qh6 b1B Qf4 Be6 Rd7 Bc2 Qh6 Ba4 Qd2 Qc7 Qd3 Ba7 Nb6+ Kb7 Nc4 Bd5 Ra2 Ne3 Nh6 Rb6 g8B Bf6 Ne7 Nd2 Nc8 Kc6 Rf7 Qb7 d7 Na6 d8N+ Kc5 Rg7 Nf3 Rd7 Rd6 Bh7 Re6 Nc6 Rb1 Be2 Rb3 Nf1 Bh8 Rg8 Ng2 Qd1 Ng5 Bhd3 Bf6 Rh8 Rhe3 Nb4 Kd4 Ng8 Rh3 Na3 Ke5 Nc6+ Kf4 Nb5 Bg1 Nb6 Nc5 Nc7 Rg3 Bc4 Kf5 Ba6 Be5 Beb5 Bc4 Qd6 Bed4 Nca8 Nd5 Rb2 Rgc3 Re2
2B2R1b/4b1N1/4BbB1/R1n2NPq/n3N1q1/1krrbQ1P/rr1BK3/2B5 b - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 axb5 c5 fxg5 Be6 g6 cxd4 e4 d3 g5 d4 Qg4 Bd5 exd5 hxg4 b4 Kd7 c4 Kd6 b6 a5 g7 e5 h3 f5 b7 g3 b5 Kc5 d6 Kb4 c5 f4 b6 a4 d7 a3 c6 g2 c7 f3 c8B a2 Nd2 f2+ Kd1 e4 Bb2 e3 Be2 Na6 b8Q Ne7 g8B Nd5 b7 Nc3+ Kc1 f1R+ Bd1 e2 Nc4 e1B Qg3 d2+ Kc2 Nc5 b8B N3a4 Bc1 Qe8 d8N Qh5 Nd6 Rf3 Bh7 Be7 Ne2 g1B Nc3 Be3 Nce4 B1f2 Be2 d1R Bg6 Rd3 Ne6 Rc3+ Kd1 d3 Rg1 d2 Rf1 Kb3 Ng7 Rd8 Ndf5 Rdd3 Bf4 Be1 Ned6 Rf2 Bg4 Rg2 Rf2 Rb8 Ke2 d1Q+ Kf1 Ra8 Ne4 Ra7 Rf3 Rb2 Rf2 Qf3 Qg2 Qg3 Qf3 B1d2 Ke2 Bd4 Nfd6 Bdf6 Bgd7 Qgg4 Ndf5 Be3+ Ke1 Bed4 Bfd2 Be3 Ke2 Nb6 Rb1 a1B Rf1 Ra2 Rf2 Kc2 Rf1 Nba4 Rf2 Rb8 Rb5 Rb7 Ra5 Rbb2 Rf1 Kb3 Nfg3 Bfd4 Ne6 Bh8 Ng7 Rc4 Rf2 Rb1 Rf1 Qe6 Qg4 Bc3 Rf3 Rbb2 Rf8 Bcf6 Qf3 Qeg4 N3f5 Rcc3 Be6+
NqR1n3/R3K3/r1BP4/1R1QN1nr/2NR1B1r/1nk2R2/5r1P/1q1b1q1n b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 f4 exf4 a3 h5 a4 hxg4 axb5 a4 Qb3 Bc5 Qc2 Bb6 Qd1 Ba5 bxa5 Ra6 Kf2 Ra7 Ke1 Ra8 Kf2 Ke7 d4 Kd6 e4 g5 b6 c5 b7 f5 a6 f3 Kg3 a3 a7 c4 Bh3 a2 Qd3 f2 Bb2 f1N+ Kg2 g3 Kf3 c3 Qd1 g2 Qb3 c2 Qc3 c1N Qc4 g4+ Kf4 g3 Bg4 Nd7 b8R Ngf6 Kg5 f4 Nf3 g1R Nbd2 g2 Ba3+ Nc5 Ne5 f3 Rb5 f2 Bf3 Nb3 Bc1 Ne6+ Kg6 Rh3 Kf7 Rh4 Qd3 Rb8 a8N Ng3 Qc4 Rd1 Rf1 g1Q Nc6 Nh1 e5+ Kd7 Qd3 Bb7 Nc4 Rd2 Bg2 Rb2 Bf4 Qb6 Qf5 Rbh8 Qg5 R8h5 Bf3 Ng7 Kf8 Ne4 e6+ Kc8 e7 Kd7 Qg2 Ng5 e8R Re2 Rc8 Ne8 d6 Ke6 d7 Rd2 Rac1 a1R d8R Qc7 Rcd1 Qb8 Rd7 Ra6 N6e5 Be4 Rg7 Bc2 Bc6 Kf5 d5 Re2 Qh3+ Ke4 Qd7 Rd2 Qd6 Kd4 Ra7 Kc3 Ke7 Re2 Rd4 Rd2 Ra1 Re2 Ra2 Qb1 Qc5 f1Q d6 Bd1 Qd5 Rg2 Re2 Rf2 Re3+ Kc2 Nd3 Kc3 Rf3 Qc2 Nde5+ Qcd3 Be3 Qb1 Bf4+
2N1bn1r/2K1n1rk/P3B2B/2B2nN1/2r2Rn1/3Q2bR/BP4Rn/1rb2B2 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 a4 b5 axb5 gxh4 Ra4 a5 Ra3 Qf6 Ra1 Qa6 bxa6 Bg7 Nh3 Bh6 Ng1 Bf8 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 Kf7 e4 Kg6 d4 c4 g4 a4 g5 a3 d6 h3 d5 a2 d7 f3 d8B f4 d6 h4 d7 f2 Bd2 c3 Bc4 f1N Bc7 c2 d8R c1B Nf3 h2 Rd4 h3 Na3 Ne3 Bd6 Nf5 Bf1 Nge7 Nc4 Kh7 Bc5 Bd7 Nd6 Ra7 Nc8 Be8 Qe2 Rb7 Qd3 Nd7+ Ke6 Rb4 e5 Rc4 Rg1 h1R Rg2 h2 g6+ Kg7 Rb1 a1R Ng5 f3 Rf4 f2 Bde3 Kh6 g7 Rg1 g8B h1N Bf7 Nc6 Kd5 Bd6 e6 Nf8 e7 Bb8 Be6 Bd6 Be2 f1N Bd2 Nh2 Bf1 Nf2 Bde3 Bd7 e8B Nfg4 B8f7 Be8 Bg8 Bd2 Rc1 Rb1 Rc3 Bc1 Ra3 Be5 Rb3 Bd4 Bd2 Bf2 Ra3 Bg3 Rb3 Nh4 Kd6 Ne7 Kc7 Nhf5 Ra3 Re4 Ba2 Rc4 Be6 Kg6 Bc3 Kh6 Bg7+ Kg6 Nh3 Kh7 Bh6 Nc6 Rb3 Ne7 Ng5+ Kg6 Qe2 Be1 Nh3 Kh7 Rgf2 Nge3 Rd3 Rg7 Rg2 Neg4 Ng5+ Kg6 Rh3 Bg3 Nf7 Kh7 Qc2 Ra1 Qd3 Rb1 Ng5+
Rr2n3/bbr1BB1b/Q5N1/3bn3/B1b2P1n/B1B2k1P/2NR3N/Kn5b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Qd3 h3 Qd1 h2 f4 h5 Bc4 h4 Be2 h3 Nf3 Qc7 Rf1 h1B Ng1 h2 Rf3 Qb6 Na3 Qh6 Nb1 Qh3 gxh3 Bb7 Kf1 Ba6 Ke1 Bc8 Kd2 Kf7 c4 Kf6 Kc2 d5 b4 e5 Kb2 a5 b6 d3 b7 e4 b5 e3 b6 a4 c5 a3+ Ka2 d2 c6 d4 c7 d3 Qb3 d1B Nc3 d2 Bb2 Nd7 b8B Ra7 b7 Bc2 Bd1 e2 Rd3 e1N Qd5 Nf3 Qb5 Nde5 Nb1 Nh4 Nf3 Bc5 Bc3 Be6+ Qc4 Bd5 c8B Bg2 Bd7 h1B Nh2 Be3 Bf3 d1B Ba4 Be2 Bd6 Bg1 b8B Rc7 Bf8 Ba7 Rd2 Bb7 Bfc6 Bd5 Be8 Bce4 Bf7 B2d3 Kb3 a2 Kb2 Bf1 Qb5 Bfc4 Na3 Bed3 Nc2 B3e4 Rad1 a1N Ba3 Nb3 Ra1 Bed3 Rdd1 Nd2 Qa6+ Be6 Ra2 Nb1 Rd2 Bde4 Ka1 Bed3 Qa5 Bed5 Qb5 Ne7 Qa5 Nc8 Qb5 Nd6 Qa6 Bc5 Ba7 Rb8 Bb6 Bf2 Bbc5 B3e4 B5b4 Bb6 Bc5 Ne8 Bd6 Ba7 Be7+ Kg7 f6+ Kh6 Bg8 Kg6 f7+ Kf5 f8N Bed3 Ng6 Ke4 Ng4 Kf3 Bf7 B3e4 Nh2+ Kg3 Qf6 Bb6 Bc6 Bhf3 Nf8 Bb5 Bab2 Bbc4 Ra8 Bh7 Ng6 Bh1 Bba3 Be3 Ba4 Ba7 Rd4 Kg2 Qa6 Kf2 Rd2+ Kg3 Nf1+ Kf3 Nh2+
2rq1rBq/1R2nq2/1Rr2q1R/1Q3RN1/kB2P1Nq/1n6/3P1RK1/4qBn1 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Qb3 f3 Kd1 f2 Kc2 Bd7 Kc3 Be7 Qd1 Bc8 Kc2 Bf8 Nc3 g5 Nf3 f5 Nb1 f4 Ng1 f3 h3 g4 Bg2 Bd6 Bf1 Bf4 gxf4 g3 Ra3 Be6 Ra1 Bg4 hxg4 Qc8 Ra5 Qd7 Ra1 Qd8 b4 Kd7 e4 a5 f5 h5 b6 Kc6 b7 Kb5 g5 c5 g6 g2 g7 a4 f6 h4 f7 a3 f8R a2 Re8 h3 Qe2 h2 Kd1 Ka4 b5 c3 b6 c4 Re5 Nd7 b8R Ne7 g8B Nc5 b7 Nb3 Nh3 g1N Rc5 Ra6 Ba3 Rc6 Rf5 Rc8 Bd5 Rf8 Bb4 Rc6 Na3 Rc8 Rb1 a1Q Ng5 Qb2 Bh3 Rc6 Nc2 f1Q+ Ne1 f2 Bg8 Qa1 Rc8 Qb2 b8R Qa1 Rb6 Qb2 Bg4 Qh3 Ng2 Qh4 Bh3 f1Q+ Qe1 Qff4 Ne3 Qfc7 Qg3 c2+ Ke1 c1R+ Kf2 c3 Bf1 c2 Kg2 Qf6 Qe5 Qcd7 Qb8 Qd5 Rc7 Qdf7 Ng4 Qhh8 Rcb7 Qhh7 Qf4 Rc8 Ba6 Qhh8 Qe5 Ne2 Rhf1 h1Q+ Kf2 Q1h7 Rh1 Ng1 Kg2 Re1 Rd1 c1Q Rh2 Re3 Rdf1 Rec3 R1f2 R3c6 Bf1 Qe1 Rh4 Qhh6 Qd5 Qc3 Qe5 Q6f6 Rh6 Qg3+ Kh1 Qh4+ Kg2 Qd3 Qc5 Qd8 Qb5#
1Bq2k1q/N1Br1B2/4RP1b/1BP4Q/2b1N3/b4rpK/R2n1qN1/n5Bn b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 a4 b5 axb5 f5 d4 c5 e4 cxd4 exf5 Qb6 Nf3 Qc7 Ng1 Qd8 h4 e5 c4 d5 f4 g5 Kf2 d3 Kg3 d2 c5 d4 a6 e4 h5 d3 b6 e3 a7 e2 b7 e1B+ Kh2 g3+ Kh3 g2 h6 Nc6 b8N Na5 h7 Nf6 Ne2 g1Q Ra2 Qf2 Nbc3 Be6 Nc6 Qc8 Ne4 Bc4 Rh2 Rb8 a8B Rb3 Na7 Bh6 Bd5 Kf8 Bf7 Rc3 Bb2 Nb3 Bc1 Rg8 h8B Rg7 Ra6 Rh7 Re6 Na1 Bb2 Rb3 Be5 Ra3 Rg2 Rg7 Bc7 g4+ Kh2 g3+ Kh3 Ng4 f6 Nh2 f5 Nf3 Nf4 Rc3 Bg8 Rd7 f7 Rb3 Qe2 d1Q Bd4 Nd2 Qh5 Qb1 Rh2 Qb2 Ng2 Qc3 Be3 Qh8 Bd4 Nb1 Be3 d2 Bd3 d1N Bb8 Ba6 Bb5 Bb4 Bd4 Rf3 Be3 Qe1 Bg1 Ba3 Bc7 Nd2 Bb8 Qb2 Bc7 Qf2 Bb8 Kg7 f8B+ Kh8 Bfd6 Qf1 Re7 Nb1 Bf7 Kg7 Be2 Kf8 Bdc7 Qh8 f6 Bb5 Re6 Nf2+ Kh4 Bd3 Ne3 Nh1 Rg2 Ba6 Kh3 Bb5 Bd3 Qe1 Rd2 Qf2 Ra2 Nd2 Ng2 Ba6 Bc2 Bb5 Ba4 Bc4 Bb5
NR4n1/B2B1P2/2qb1q2/1r2N1n1/rQ1K1nPq/1B3k2/rNb4p/BBR5 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 e5 d4 f5 Qd3 Nf6 dxe5 Na6 e6 Ng8 e5 Nb8 Qe4 fxe4 Kd2 Ke7 Ke3 c5 g4 h5 f4 a5 b4 c4 f5 c3 f6+ Ke8 f7+ Ke7 b6 h3 b7 h2 b5 c2 b6 a4 Nc3 a3 Na4 h4 Nb2 a2 Bd3 h3 Nf3 Ra4 Rb1 Nd7 b8Q a1R b7 Ndf6 Rf1 R4a2 Kd4 h1Q Be3 h2 Rfc1 Rh4 Bd2 e3 Bc3 e2 Bf5 e1Q Bg6 Qe8 d6+ Kd8 e7+ Kd7 e6+ Kc6 d7 Qhf1 d8B Nh7 Bb6 Rh5 Ba7 Qh4 Qf4 Ng5 Ne5+ Kd6 b8N Qc6 e8B Bd7 e7 Bf5 Nbd7 Qfa6 Rg1 c1N Nb6 Bc2 Na8 Nd3 Rgc1 Ke6 Qe4 Nf4 Bd7+ Kf6 e8B Bd6 Be6 Qf1 Bb3 Ra4+ Nbc4 R1a2 Ba1 Qf3 Qe1 Ke6 Qb4 Qff2+ Kc3 Kd5 Bd7 Qfb6 Bd3 Qd8 Bh7 Qf6 Rb2 Ng6 Rbb1 Ke4 Rb2 Kf4 Kd4 Kg3 Rbb1 Nf4 Nb2 Qb7 Nc4 Qh3 Qb5 Be4 Bd1 Qc6 Qc5 Kf2 Rb8 Qh4 Qb4 Ngh3 Nb2 Rf5 Bc2 Ng5 Bb3 Kg2 Ke3 Bb1 Ng6 Rb5 Ne5 Bg6 Kd4 Kf2 Bf5 Ke2 Bb1 Bc2 Bf5 Qe7 Ned3 Kf3 Bd7 Qf6+ Ne5+
bk6/RP1N1B2/1b1qn2n/1b1Br2n/qp4BP/5N1K/3RR3/rr1BQB2 b - - 0 1 legal: proof: f4 e5 fxe5 h5 d4 c5 g4 cxd4 gxh5 a5 b4 Qf6 b5 Qd8 Ba3 Be7 Bb4 Bf8 Bg2 axb4 Bf3 Nh6 Bxb7 Ng8 Kf1 f5 Kg2 d5 h4 Kd7 a4 Kc7 c4 g5 e4 f4 h6 d3 h7 g4 b6+ Kd7 a5 d2 a6 g3 a7 f3+ Kh3 f2 e6+ Kd6 c5+ Ke7 c6 Kd6 c7 f1N Nc3 g2 Rh2 d4 Ba6 d3 Qe1 d1Q Nf3 g1R Re2 d2 Nd5 Nh6 Nf6 Qa4 Nd7 d1B e7 Nc6 e8B Nd4 Bh5 Bb7 c8B Ng3 e5+ Kc6 e6 Bc5 e7 Ne6 Bc4 Re8 h8R Rf1 Bg4 Nh5 Rh7 Qc7 Raa2 Qd6 Rad2 Bc2 Bb3 Bd3 Bd1 Bb5 Rf7 Rg8 e8B Rg5 Rh7 Re5 Re7 Rb8 Bg6 Ba8 Ba6 Rf8 Rh7 Rf4 Re7 Rc4 Bf7 Rc1 Bg8 Ra1 Bf7 Bd3 Bb5+ Kb7 Bc4 Kc8 Bd5 Bb5 Bc4 Be4 a8B Rg1 Bad5 Bd4 Nf8 Kb8 Ra7 Be3 Rg2 Bc5 Bf1 Bd4 Rge2 Be3 Ba2 Ba8 b7 Bb6 Nd7+ Kc7 Bc2 Nd8 Qf2 Bc5 Bad5 Ne6 Bg2 Rgb1 Bd1 Be3 Bf1 Bb6 Nf6 Kb8 Qg3 Ba5 Qe1 Bb6 Nd7+
2Q2k2/R4B1K/1qBq3P/8/N1r3BR/1pr1r1q1/r2r1bPN/n1n1N1NN b - - 0 1 illegal: No proof kernel
RkNNN2K/2br1q1n/4B1R1/Q4b2/1q2rP2/1p3Nb1/PB2b1q1/1N2R1r1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e3 f4 exf4 axb4 Na3 g6 Nb1 g5 f3 g4 h4 gxf3 g4 Nc6 h5 Ne5 g5 Ng6 hxg6 Bg7 Ne2 Bh6 Ng1 Bf8 Kf2 Kd7 Ke3 b5 Ke4 c5 Ke5 Kc7 d4 h5 d6+ Kb8 d5 b3 d7 h4 d6 f2 g7 b2 g6 h3 Qd5 c4 Nd2 b1Q Ngf3 b4 Nh4 c3 Ke6 h2 Kf7 e5 Qd3 c2 Qg3 e4 Bc4 f1B Nhf3 e3 Rg1 h1Q Qg5 e2 Bb3 e1B Bb2 c1R Qa5 Bg3 Be6 Nf6 g8N Qc7 g7 Be2 Ne7 Nh7 d8N Qg2 g8N Ra7 d7 b3 Nf6 Qe4 Rb1 Qb4 Ne8 Rg8 Ra1 Rc4 Rae1 Re4 Nb1 Bg7 Kg6 Be5+ Kh6 Bca6 Nc8 Bad3 Nb7 Rg7 d8R Rd7 Kg6 Qcc4 Kh6 Bc7 Kg6 Bc2 Kh6 Rd1 Kg7 Rd7+ Kh8 Bcd3 Bg4 Qf7 Be6 Ra6 Rh1 Rc6 Rh6 Rc1 Rf6 Red4 Rg6 Bf5 Ned6 Re4 Rdg8 Qd2 Ne8 Qb4 Nd8 Bd1 Re3 Be2 Rf8 Rg1 Rfg8 Bb5 Re1 Be2 Nb7 Re7 Ncd6 Qf6+ R8g7 Bb6 Nd8 Rc7 Nc8 Qfe7 Bd5 Qe6 Rd7 Qf7 Be6 Rb7 Rd6 Rd7 Rc6 Bc7 Ra6 Rd5 Ra7 Rd7 Ra8#
1N1n3R/P3pQ2/q2bb3/Bk2PR1N/3nR1Kn/5R2/n2RNq2/2rb1q1B b - - 0 1 legal: proof: d4 a5 c4 c5 f4 g5 fxg5 d5 b4 axb4 cxd5 Be6 Qb3 Bg4 Qd1 Bc8 h4 cxd4 g4 b5 h5 Bg7 g6 Kd7 g5 Bf8 g7 Ke8 Qa4 Ra6 Qd1 Rg6 hxg6 Qd6 Be3 Qc7 Bc1 Qd8 Kf2 Kd7 Kg3 h5 a4 f5 e4 f4+ Kh3 h4 d6 Kc6+ d7 f3 a5 b3 a6 b2 a7 d3 Ra4 f2 Rb4 d2 Qe1 d1B Bc4 Qa5 Na3 b1Q Qf1 Qc2 Bd2 Nh6 g8R Nf7 g7 Qa6 g6 Nd8 Ne2 Rh7 Kg4 h3 Rb3 b4 Rf3 b3 Rh8 b2 g8N b1N g7 h2 Nb5 Nc3 Nc7 Na2 Nf6 Rh3 g8R Bh6 Bd3 Bf4 Rf8 Bd6 e5 Rh7 Rg1 h1N Nh5 Ng3 Ba5 Nf5 Be4+ Kc5 Bb7 Nh4 R8f5 Nbc6 Rgg3 Qb2 Re3 Rh6 Re4 Nd4 Rgf3 Qbb6 Nd5 Qb2 Nb4 Kb5 Nc6 Qc2 Nb8 Qc5 Qg1 f1Q Qe3 Qc2 Qg5 Qd2 Qg7 Qde1 Qf7 Qef2 Ba8 Rg6+ Kf4 Rg1 Bd5 N8c6 d8R Be6 Rd7 Rh1 Kg4 Nd8 Rc7 Rh3 Rc2 Rh1 Rd2 Rh3 Rff4 Rc3 Rf3 Rc1 Ref4 Ba3 Rb3+ Ka4 Bh1 Bd6 Rbf3 Kb5 Re4
2qN1Bn1/2q4q/2k3N1/1b4q1/1B2qN1B/p2r1q1B/PRB1P1rb/R2Q3K b - - 0 1 legal: proof: c4 d5 g4 g5 b4 c5 f4 e6 f5 exf5 cxd5 Nd7 bxc5 Ndf6 Nh3 fxg4 Ng1 g3 h4 g4 Ba3 Ne4 Bc1 Ng5 hxg5 Bf5 Bg2 Be6 Bf1 Bc8 Rh6 Kd7 d4 a5 d6 b5 d5 f5 Rh2 h5 Qb3 Ra7 Nc3 g2 Kf2 h4 Ne4 b4 Be3 h3 Bd2 a4 Rh1 h2 Nh3 a3 Qb1 b3 Bb4 f4 g6 f3 g7 b2 Qc2 b1Q Neg5 Nh6 g8B Ba6 Bh7 Ng8 Nf7 Bb5 Rg1 h1Q c6+ Ke8 c7 Kd7 Kg3 f2 c8N Bg7 Ne7 Qc8 Qa4 Rc7 Bd3 Rc3 Ng6 Rh5 Qb3 Rg5 Qc2 Qc1 Rb1 Bd4 Rb2 Rb3 Qd2 Q1c7 Qe1 Be3 Bc2 Rd3 Qc1 Qe8 Nhf4 Qh7 Nh5 Qe4 Kh2 Kc8 Rh1 Kb7 Qb1 Qc8 d7 Kc7 d6+ Kc6 d8B Bb6 d7 g3+ Kh3 g1Q Bde7 Bc7 Bf8 Be5 Bg2 f1Q Qe1 Qa7 Nd8+ Kd5 Qd2 Qff3 Ra1 Qac7 Qd1 Bd6 Ne6 Rg4 d8B Kc6 Bh4 Rg5 Bf1 g2+ Ng3 Kd7 Nd8 g1Q Bg2 Qge3 Kh2 Rg4 Kh1 Qg5 Nh5 Bh2 Ne6 Kc6 Nhf4 Qfe3 Bf3 Rg2 Bg4 Qg3 Bh3 Qgf3 Nd8+
qr5b/7n/R1n4R/NqPPn1k1/1p1R1nRR/q5Nq/Q2K1N1r/1B1B4 b - - 0 1 illegal: No possible last move
N2n4/1qBP2B1/2Q1NNR1/nN1q4/R1r3q1/2rp1bP1/1B3K1k/2n1n1Nq b - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 gxh4 c4 e6 cxd5 Bb7 d6 Bc8 d7+ Ke7 f4 Bh6 e4 Kf8 d5 Bg7 d6 Qf6 e5 Nh6 Bc4 Qe7 Bd5 exd5 e6 Be5 fxe5 Ng8 Qd4 Qg5 Qd1 Qd8 b4 Kg7 e7 Kg6 e8N Kf5 b6 c5 b7 a5 b5 h5 g3 a4 e6 a3 e7 h3 b6 c4 Kf1 c3 Ra2 d4 Qe2 h2 Qe5+ Kg4 Nf3 Kh3 Qf6 d3 Bd2 c2 Qe5 c1N Be1 f5 Qb2 f4 Ba5 h4 Be1 Ra4 Nd4 f3 Kf2 Nh6 Nb5 Nf7 Nec7 Rc4 e8N Nc6 b8B Bb7 Nd2 Na5 Rf1 h1Q Qf6 Kh2 Na8 h3 Bc7 Qe7 Qe6 Nd8 Nf6 Bc6 Ra1 a2 b7 Qf7 Qe4 Qd5 b8B Rh4 Ba7 Rc3 Bd4 Bb7 Be5 Rg4 Qc4 Rd4 Qc6 Rdc4 Rb1 a1N Rb4 Nc2 Ra4 Rb3 Bb2 Ra3 Nde4 Rac3 Bd2 Ne1 Bh6 Ne6 Bg7 Nd8 Ng5 Qg2+ Ke3 Qh1 Rf2+ Qg2 Re2 f2 Rc2 f1Q Nf3+ Kh1 Re2 h2 Ng1 Qff5 Rf2 Qg5+ Rf4 Qge4+ Kf2 Qh7 Rg4 Qgh5 Rg6 Qg4 Ke3 Kg2 Nh3 h1Q Ng1 Kh2 Kf2 Qhg8 Nh3 Qgf7 Ng1 Ne6 d8N Qd7 Nf7 Nd8 Ng5 Qc8 Qb6 Bc6 d7 Qb7 Qc5 Qd6 Qb6 Bf3 Qc6 Qd5 Ne6
2BR1Rq1/nqpN4/2R1r1q1/nP5Q/2PB1n2/4B3/N1nn1kB1/2K1nb1B b - - 0 1 illegal: No possible last move
b3rRn1/7R/r1bB1Q1n/1BPN1nq1/p7/1r1RR3/1R3p1P/BbK3Nk b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h5 gxh5 a5 b3 a4 b4 Bd6 Nc3 Bc7 Nb1 Ba5 bxa5 Kf8 Bg2 Ke7 Bf1 Ke8 Kd2 Ke7 c4 Kd6 e4 Ke5 h6 d5 a6 g5 c5 f5 h7 f3 b6 Kf4 a7 f2 e5 d3 e6 d4 b7 g4 e7 g3 e8R g2 Ba3 Nh6 Re6 Re8 h8B Nd7 b8R Nf6 Bg7 Nfg8 Qb3 Qg5 Re2 Bd7 Nf3 g1R Kc1 d2+ Kb2 d1B Re6 d3 Re3 d2 Rb7 Bc6 Bb5 f1B Nc3 Bc2 Rb1 d1N+ Kc1 Bg2 Rb2 Bb1 Bf8 Kg4 Rg7 Kh3 Rh7 f4 Qf7 Re1 Rd3 R1e3 Re1 Bh1 Qf6 Bg2 Ne5 f3 Bd6 f2 Nd5 Bh1 Nf3 Kg2 Ng1 Rh3+ Rdd2 Ne3 Rd3 Rf3 Bb4 Rg3 Bc3 Nef5+ Rdd2 Rh3 Bce5 Rb3 Re3 Rab8 a8R Rb6 Rdd3 Ra6 Nf3 Re7 Rf8 Re8 Nh4+ Kg1 Bd4 Bg2 Nf3+ Kh1 Ng1 Be4 Re2 Ba8 Ba1 Bf3 Rb2 Bg2 Nf4 Bgc6 Nd5
N1n1r1n1/1RPb4/RnN3k1/1b1BPrq1/1b4Q1/5pBB/KpN3N1/4N1r1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 d4 c5 f4 e5 fxe5 cxd4 a4 axb4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 Kd2 g5 h4 d5 c4 f5 Kc2 Kf7 Kb2 f4 e4 b3 b6 d3 c5 g4 b7 d4 e6+ Kg7 h6+ Kh7 e5 d2 e7 d3 e8B g3 c6 g2 h5 Bb4 c7 Qd6 Bc6 Ra4 Bd5 Bc5 Qg4 d1B Nf3 g1N Na3 d2 Nc2 Qd8 Nfe1 f3 Bh3 Ra8 Ra6 Nc6 b8N Bb4 Nd7 Be2 Nb6 d1R Bf4 Qg5 Bg3 Rb8 Na8 Bb5 Rh2 Be6 Rd2 Ne2 Rd4 Bd2 Rb4 Re8 Ka3 b2 Ka2 Nf4 Rb3 Nf6 Rb4 Ne7 Rb3 Kg8 h7+ Kg7 h6+ Kg6 Rb4 Rhf8 h8N+ Kh7 Ng6 Nc8 Ne7 Ng8 Rb3 Bb4 Nc6 Kg6 h7 Bd7 h8N+ Kh6 Be4 Nd5 Ng6 Rf5 Nf4 Ndb6 Nfg2 Kg6 Bd5 Rc1 Rba3 Rd1 Ra7 Rc1 R3a6 Rd1 Rb7 Rc1 Nd3 Rg1 Nde1
1RK1R1r1/3NN1r1/1q1b4/2n1rR2/1qP1qRPR/1BBB1pk1/p7/1b1n3Q b - - 0 1 legal: proof: d4 b5 h4 d5 f4 c5 a4 e5 axb5 g5 hxg5 exf4 e4 cxd4 exd5 Bf5 Bd3 Bh3 Bf1 Bc8 Kd2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 h5 b4 f5 d6 a5 Kc5 f3 c4 h4 g6 h3 g7 h2 b6 a4 b7 d3 b5 f4 b6 f2 Nc3 a3 Bb2 d2 Bd3 Nh6 g8B f1Q Bgh7 Na6+ Kc6 a2 b8R Bf5 Kb7 Qe1 d7 Rg8 Qf3 d1R Nd5+ Qc3 Ne7 Re1 Qg2 Re2 Rf1 Rg7 Bc2 Re1 Bb3 Bb1 Bd3 Nf5 Qh3 Ne3 Nf3+ Ke6 Ne5 Nd1 Qh7 Qb4 Bc3 Kf6 Rc8 Kg5 Rc5 Rc8 Qe4 Kh4 Rd5 Kg3 Rd4 Qe8 d8R Qeb5 Re8 Re3 Nd7 Nc5+ Ka7 Re1 b7 Rd8 b8R Qb6+ Ka8 Re2 Rd5 Re3 Rf5 Re1 Qc6 Re5 Re1 Rc8 Re4 f3 Ref4 Rd8 Qh6 Rc8 Rf1 h1Q Qh8 Qg1 Qh1 Qd4 Rf2 Qe3 Rh2 Qe2 Rh4 Qe4+ Nd5 Rc6 Ne7 Rcg6+ Rb7 Rg8 Kb8 Rg5 Kc8 R5g7 Nc6 Be7 Rb8 Bd6 Ne7
knr1R1NN/3q1Nb1/Qr3b2/q2B1p2/2Pn3q/1B2Kb1N/P3RN1p/6R1 b - - 0 1 illegal: No possible last move
1R2b1n1/qQq5/NBk3Pq/8/p3r1Bb/P2B3R/K1pn1B1r/b2B1NR1 b - - 0 1 legal: proof: c4 b5 d4 a5 e4 d6 e5 Ra6 e6 Rc6 Bf4 Rc5 Bc1 Re5+ dxe5 Bb7 Ne2 Ba6 Ng1 Bc8 cxb5 g5 f4 g4 f5 g3 b6 Na6 b7 Bg7 f6 exf6 Be3 Bh6 Bc5 dxc5 hxg3 Bg7 g4 Nb8 g5 Bf8 b4 h5 g4 h4 g6 h3 a3 h2 g5 a4 g7 f5 b5 f4 b6 f5 e7 f3 g6 c4 Qc2 Kd7 Kd2 c5 Kc1 f4 Kb2 c3+ Ka2 f2 e8R c4 e6+ Kc6 e7 f3 Ne2 Na6 b8B Qc7 b7 Nc5 Nc1 Nb3 Nd2 Bd7 Bd3 f1R Ba7 f2 b8B Re1 Nf1 Nd2 Bb6 Re4 B8a7 Rhh4 Ra8 Be8 Nb3 Rh6 Qc1 c2 Rb8 c3 Nc5 Rh5 Rg1 h1Q Na6 Rh2 Rg3 Qg1 Rh3 Qg5 Rb1 Qh6 Ra1 Bd7 e8B Be7 Bf7 Be8 Be6 Bd8 Bg4 Bh4 Qb1 c1B Qc2 Bb2 Rd1 Ne7 g8B Ba1 Bb3 Ng8 Qc1 Qc8 Re1 Qb7 Bbd1 Qc7 Qb2 c2 Qh8 Ne7 Qf8 Ng8 Qf5 Qh5 Qc8 Qh6 Ng3 f1Q Bf2 Qh1 Bab6 Qf3 Rg1 Qfe3 Nf1 Qc5 Qf5 Qa7 Qe6+ Qd6 Qc8+ Qdc7 Qb7+
rbBqn1nR/4RqP1/2rbP3/4kB2/2p5/2pNnB1N/RB3K1B/2r1Q3 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 h4 b5 axb5 exf4 b6 g5 hxg5 a5 b3 a4 Rh5 a3 Rh3 Bd7 Rh1 Ba4 bxa4 Qd3 Nh3 Qd4 Ng1 Qd8 e4 Ke7 g4 Ke6 d4 h5 b7 c5 g6 f5 a5 f3 a6 a2 d5+ Kd6 a7 h4 e5+ Ke7 g7 f4 g5 h3 g6 h2 e6 Kf6 d6 Rh7 d7 Kf5 Nc3 Rh4 Kf2 Na6 b8B Nc7 Nh3 Ne8 Qe1 Bd6 Ne2 Ke5 Rg1 h1R Bb2+ c3 Rg4 c4 Bg2 Rh5 Rh4 Rf5 Rh8 Rf8 Bc7 Rc8 Bb8 Rc6 a8B Bc7 Bb7 Rg1 Rc1 a1B Bc8 Rh1 Rc2 Rg1 Ba3 Bb2 Rh7 Bc1 Ra2 Bd6 Bb2 Bd2 Qa1 Rc1 Rh8 Qc7 d8R Qa5 Rd7 Qd8 Re7 Be1+ Kf1 f2 Bf3 Bd2+ Kg2 f1N Kf2 Ne3 Bc7 Rc2 Qe1 Rc1 Bh5 f3 Nef4 Rb6 Kg3 f2 Bf3 f1Q Bb8 Nh6 g8B Rc6 Bh7 Ng8 g7 Rd1 Bf5 Rc1 B3e4 Qf3+ Kh2 Qh5 Kg1 Qf7 Bh1 Qb6 Bf3 Qd8 Qd1 Be1 Qe2 Bh4+ Qe1 Bg3 Bc7 Bh2+ Kf2 Kd4 Ng6 Bb4 Bg2 Qd5 Ke2 Nef6 Bb7 Ra8 Bf3 Ne8 Kf2 Qd8 Bc8 Be5 Ba5 Bb8 Bc7 Ba3 Bh2 Bad6 Ngf4 Ke5 Nd3+
3Nb2k/3N1P1R/q7/1Q1N2b1/2P1N1nB/rnp3r1/RN1p1rB1/q1n1B1K1 b - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 exf5 h6 axb5 h5 Qb3 h4 Qc3 h3 d4 cxd4 gxh3 dxc3 h4 Qc7 h5 Qd8 b4 Kf7 h4 d5 f4 e5 Kf2 a5 f6 g5 f5 e4 h6 d4 h5 d3 h7 a4 b6 a3 h6 g4 b5 a2 b7 Nd7 b8N Qa5 b6 Ra6 b7 Qb4 Ne2 e3+ Kg1 g3 Nc6 g2 b8Q Nc5 Qb5 Be7 Nd2 Qa3 Nb4 Rd6 Nf4 e2 Nfd5 e1R Ne4 Re3 Bd2 Be6 Be1 d2 Nd3 Rg3 Nb2 Ra6 Rh4 Bd8 Rg4 Nb3 Rg7+ Kf8 f7 Nf6 Rg5 Rg8 h8N Ng4 h7 Bd7 Rg7 Bg5 Ne3 Ke7 f6+ Ke6 Nd5 Be8 f8N+ Ke5 Ne6 Rf8 Nf7+ Kf5 h8B Ra5 Rc1 a1Q Ned8 Qd6 Rb1 Qa6 Ne5 Ra3 Nd7 Rf7 Rc1 Rf8 Rc2 Rf7 Rh7 Kg6 Rg7+ Kh6 Nd1 Rf8 Ra2 Rf7 Nb2 Rf8 Rg6+ Kh7 Bg7 Rf7 Bh6 Kh8 Rg7 Re7 f7 Re5 Rg6 Rf5 Bf8 Rf6 Be7 Rf2 Rg7 Ne3 Kh2 g1N+ Bg2 Ne2 Kh1 Nec1 Kg1 Ng4 Bf6 Be3 Bh4 Bg5 Rh7+
RN1n3N/1qqP4/1B5k/KpqB3p/1Q3N1R/4b1P1/2rbnNN1/4rn1R b - - 0 1 legal: proof: e4 f5 c4 a5 b4 axb4 f3 d5 cxd5 g5 h4 g4 fxg4 f4 h5 Bf5 h6 Nxh6 exf5 Ng8 a4 Kf7 d4 Kg7 Kd2 c5 f6+ Kg6 d6 h5 g5 e5 f7 b5 d5 b3 Kc3 f3 g3 f2 d7 e4 d6 c4 Kb4 b2 a5 c3 a6 e3 a7 e2 Ra4 e1B Ne2 c2+ Nd2 b1N Bg2 f1Q Nf4+ Kg7 g6 Qd3 Qg4 Qe2 Bd5 Qc7 d8N Nc3 Nc4 Nh6 Ne3 Nf5 Neg2 Qee7 Nc6 Kh6 Be3 c1Q g7 Bd2 Bb6 Ne3 Ka5 Nf1 d7 Qe4 Rb4 Bc5 f8N Ne2 N8g6 Rc8 Nh8 Bce3 Qh4 Qc5 g8N+ Kh7 Nf6+ Kh6 Qg4 Qf3 Ne4 Re8 Nf2 Re5 Nd8 Nc6+ Ka6 Rc8 a8R Ncd4 Rc4 Ne6 Nc6 Nd8 Nb8 Re7 Bf7 Qfc6 Bd5 Re4 Rb4 Q6b7+ Ka5 Rc4 Qf3 Rc1 Qe4 Re1 Qd4 Bc1 Ra4 Bcd2+ Qb4 Qc2 Qc3 Qd6 N4d3 Rc5 Rb4 Qdc7 Rbh4 Rc4 Ndf4 Qf5 Bc6 Qc5 Qb4 Rc2 Bd5
3QbNb1/1N5b/1RR1nR2/4B1rr/2P5/N3pRPp/1rkq1BnR/4b1K1 b - - 0 1 legal: proof: e4 c5 h4 b5 d4 cxd4 a4 f5 exf5 Kf7 axb5 Ke8 b4 g5 hxg5 a6 b6 Bh6 b5 Bf8 b7 Nh6 b6 Ng8 Bb5 axb5 Kf1 Kf7 c4 h5 f4 e5 f6 Kg6 g3 Kf5 f7 Ke4 f5 d5 g6 d3 g7 h4 f6 h3 Ra7 d2 Ra1 Kd3 Ra7 e4 Bb2 d4 Qe1 d1B Ne2 b4 Rg1 e3 Bc3 b3 Na3 b2 Qf2 b1B Be1 Nh6 g8R Na6 b8R Nc5 b7 Nf5 Rg6 Nh4 Ra6 Ng2 Rh1 Rh5 Rh2 Ne6 Kg1 Ba4 Nc3 Bb4 f8N Be8 Rc6 Raa5 f7 Rag5 Na4 Bd2 Qf4 Bcd7 Bf2 Be1 Qh4 Kd2 Rcc8 d3 Nc5 Kc3 Rc6 d2 Rh6 d1R Rf6 Rd2 Rf3 Rb2 Rf6 Rg8 Rf3 Qa5 Qd8 Rgg5 Ng6 Nd4 f8R Be6 R8f6 Bg8 Nf8 Kd2 Rbc8 Bf5 b8B Bfh7 Rb6 Qb4 Bd6 Ne6 Rcc6 Kc1 Bb8 Qd2 Nb7 Kd1 Be5 Kc1 Nb5 Kc2 Na3+
2N1Bb2/3r4/q1R4n/1pn1R1n1/1Bp2n1r/4K1BR/P1Q1B1P1/kbBq2N1 b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 d4 f5 exf5 d5 cxd5 e5 b4 axb4 dxe5 Kd7 Qd4 Ke7 Qd1 Ke8 Kd2 Kf7 f4 h5 f6 c5 f5 b5 d6 h3 d7 h2 Nf3 c4 Qe2 b3 Qe4 h4 Qd4 h3 Na3 b2 Qf4 b1N+ Ke3 Qa5 d8B Ra7 Bc7 Nh6 Be2 Qa6 Nc2 Nc3 Nb4 Ne4 Nc6 Nd7 Ne7 Ndc5 Ng1 Ng5 Qf2 Rb7 Bb8 Rd7 Bc7 Bb7 Nc8 Be4 Bd6 Bb1 e6+ Kg8 e7 Kf7 Bg3 Rh7 Nf3 Rh8 Re1 h1N Ng1 h2 e8B+ Kg8 f7+ Kg7 Bd1 Kf6 Qc2 Nf2 Bf3 h1Q Be2 Bd6 f8B Nfh3 Kd2 Nf4 Ke3 Ke5 f6 Qh5 f7 Qh1 Be7 Qh5 f8R Rh7 Bd3 Qd1 Rf6 Kd5 Be2 Rh8 Bd8 Bf8 Ba5 Ke5 Bb4 Rhh7 Kf2 Kd4 Rb6 Nf5 Rc6 Rh4 Bg4 Nh6 Re5 Ng6 Bf3 Nf4 Be2 Qd3 Nh3 Qd2 Bca3 Qc1 Qb3 Bf5 Rb1 Qc2 Rh1 Qd1 Ng1 Bb1 Qa4 Bg6 Bc1 Bb1 Bba3 Kc3 Rh3 Qb3 Bb4+ Kc2 Be3 Kb2 Bed2 Qd1 Qc2+ Ka1 Bc1 Nh7 Kf3 Ng5+ Ke3
2Q5/1b1NKNR1/1p1R4/nR1Rpr1q/1BN1Bnk1/2R5/1bn1rPnP/7q b - - 0 1 legal: proof: c4 d5 cxd5 Bg4 e4 Bh3 b4 Bf5 b5 Bc8 b6 axb6 a4 f5 exf5 h5 g4 hxg4 a5 Rh3 a6 Rh4 axb7 Rh8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 c5 d6 g3 f6 g2 d7 c4 Ke6 c3 f7 c2 Ba3 c1N d4 Rh5 d5 Nb3 d6 Nc6 b8R Nca5 Bb4 Bb7 Qc1+ Kg4 Bd2 g5 Na3 Bg7 f8N Qe8 d8R Nf6 d7 Nd5 Bd3 Bb2 Nh3 g1Q Be4 Ne3 Rb1 Ng2 Rbc8 Na1 Nc4 Nc2 Bb4 Qd1 Re1 Ra7 Re3 Qh1 Rc3 Ra8 Rc7 Rc8 Nh7 Qh8 Kf7 e5 Nf8 Ra8 Ke7 Rc8 Rc5 Rc6 Rc8 Rd6 d8R Rd2 Rdd5 Re2 Rb5 Nge1 Rb8 Kh4 Ra8 g4 Re3 g3 Rad8 g2 Nd6 g1N Ng5 Na1 Ngf7 Nh3 Qc8 Rf5 Rc3 Nf4 Nc4 Nac2 R8d6 Qh6 Rbd1 Qh5 R1d3 Neg2 Rg3 Qe1 Rg7 Qh1 Rh7 Kg4 Nd7 Qh6 Rg7+ Qg6 Ng5 Qh5 Nf7+
bB1r1R2/6BN/6br/1B4Pn/Rp1bk1NN/p1b5/B1KP2Br/b3Q2q b - - 0 1 illegal: No possible last move
B1n5/1N2B2k/q1np1Pn1/B7/2N1R2n/4KR1r/1PBp2bb/nN2Q1Bb b - - 0 1 legal: proof: c4 a5 e4 g5 h4 gxh4 a4 c5 d4 cxd4 c5 b5 axb5 f5 exf5 Ra7 Ra3 Ra6 Ra1 Rb6 cxb6 Bh6 Qe2 Bg7 Qd1 Bf8 Kd2 Kf7 f4 Kg7 g4 e5 g5 h5 g6 a4 b7 h3 b6 h4 Bb5 a3 Kd3 a2 Be3 h2 Ba4 h3 Nf3 Nc6 b8B Qf6 b7 Bd6 Bg1 Nge7 Qe1 e4+ Ke2 d3+ Ke3 d2 Bc2 Kg8 g7 Ng6 Ne5 Kh7 Bc7 Qe6 b8B Bb7 f6 Qc4 f5 Qa6 f7 Ba8 Kf2 e3+ Kf3 e2 f6 Bb7 Nc4 Be5 Ba5 d6 Bbc7 Bg3 Bd8 Be5 Qc1 e1N+ Ke3 Nf3 Be7 Nh4 Qe1 Bg3 Bf2 Be5 Rf1 h1N Bg1 h2 Rf3 Ng3 f8N+ Kh6 g8B h1B Bd5 Ngf5+ Ke2 Bh2 Ne6 Kh7 Nd8 Ba8 Nb7 Bg2 Bf8 Nfe7 Ke3 Nc8 Be7 Bh1 Nba3 Bg2 Rd1 a1N Nb1 Be5 Qf1 Bh2 Re1 Bh1 Re2 Bg2 Qe1 Nd8 Rg3 Rg8 Nc5 Bh1 Kd3 Nh8 Rh3 Rg3+ Bf3 Ng6 Re6 Be4+ Ke3 Bd3 Re5 Bf1 Re6 Bfg2 Re5 Rg4 Ba8 Nc6 Rf3 Rg3 Re4 Rh3 Nb7
2Nb1q1k/q1nR2qp/p1R1N2r/3NP2P/K1n2R2/1B4r1/Q1q2qNB/1N6 b - - 0 1 legal: proof: b4 c5 bxc5 f5 d4 e5 g4 fxg4 a4 exd4 a5 d6 a6 Nc6 axb7 a6 Ra3 Na7 Ra1 Rb8 bxc8R Rb6 Ra8 Rc6 Kd2 Kf7 e4 g5 f4 Kg7 h4 d5 c4 d3 Kc3 d4+ Kb4 g3 h5 g2 f5 d2 f6+ Kh6 e5 g4 f7 Kg7 Nh3 g1Q Qb3 d1Q Rc8 g3 Ra4 d3 Qa2 d2 Nf4 Nf6 Ng2 Be7 f8N Rg8 Ne6+ Kh8 Rc7 Qc2 Rd7 d1Q Bf4 Rd6 c6 Qgf2 c7 Nb5 c8N Qdd4 Nb6 Ne8 Nd5 Qa7 c5 Nec7 c6 Qf8 Bc4 Na3 Bb3 Bd8 Rc1 Rg6 Ka5 Rg7 Rd4 Nc4+ Ka4 Rg8 Ne1 g2 Bh2 g1Q Rf4 Rg3 Ng2 Na8 c7 Rb6 c8N Nc7 Nc5 Rh6 Ne6 Rd3 Nh4 Qgg7 Ng2 Rg3 Bg1 Qd3 Rc3 Qdc2 Bh2 Ne3 Rc5 Nc4 Rc6
B5N1/KN3b2/2NQqnrq/n5p1/2P5/P3r2n/pnRN2qN/B4RRk b - - 0 1 illegal: No possible last move
qnrB4/2N3kB/1qr5/1b3prP/2b3p1/1B1B2K1/2QPR3/B1bNRRb1 b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 f4 exf4 a3 h5 a4 hxg4 axb5 a4 Nh3 Nc6 Ng1 Na5 bxa5 Ra7 Bb2 Ra6 Bc1 Ra8 Kf2 g5 e4 f5 h4 Kf7 a6 c5 a7 a3 h5 c4 b6 a2 b7 c3 b8R c2 e5 f3 e6+ Kg7 d6 Qf6 d7 Qg6 d8B Bc5+ Kg3 f2 e7 Be6 e8B Bc4 Nf3 Rh6 Nd4 Qb6 Nb5 Nf6 Bb2 c1B Bd3 f1B Nc7 Bg1 Nc3 Nd7 Qc2 Rc6 Bg6 Bb5 Rb7 Rc8 a8B Nb8 Bh7 Be2 Rb1 a1Q Ra7 Qaa6 Ba1 Qab7 Ra3 Q7a7 Bb7 Qa8 Ra5 Bc4 Re5 Bb5 Nd1 Bc4 Kg2 g3 Kh3 g2 Kg3 Bf1 Ba6 Bb5 Bc4 Be2 Bb3 Bec4 Re2+ Bd4 Rf1 g1R+ Kh3 Rg4 Rb2 Bg1 Rb1+ Rd4 Kg3 g4 Nc3 Rdd6 Rfe1 Rg6 Rf1 Ba3 Rbe1 Rg5 Nd1+ Bb2 Bb7 Rf6 Be4 Bc1 Nc3 Rd6 Bd3 Rc6 Nd1+
6qR/p1Rr1PQ1/1p2r1Nr/BRq2NkB/3Rr3/1b2q1BK/2Pb1Rn1/8 b - - 0 1 legal: proof: g4 h5 gxh5 f5 d4 c5 a4 cxd4 e4 Rh6 exf5 Qb6 a5 Rh8 a6 Qb5 Nf3 Nc6 Ng1 Nd8 b3 b6 b4 Nb7 axb7 Qxb4+ Nc3 Qb5 Nb1 Qb2 b8B Kf7 h4 Kf6 f4 d5 Kf2 e5 Kg3 g5 h6 g4 h5 d3 h7 d4 h6 e4 Na3 e3 Nc4 e2 Ra4 e1R Rh5 d2 Nf3 d3 Nce5 Qd4 Ng6 Re4 Be2 Be6 Nfh4 Qc5 Rd4 Ne7 Qg1 d1Q Bd2 Bb3 Ba5 d2 Kh2 g3+ Kh3 g2 Bc7 Rg8 h8R Re8 h7 Nd5 Rg5 Ne3 Bh5 Qe2 Bb8 Kg7 f6+ Kh6 f7 d1R f5 R8e6 f6 Rd3 Qa1 g1Q Bg3 Ng2 Rgd5 Qef2 Nf5+ Kg5 Re5 Bg7 f8R Bh6 f7 Rd2 Rc8 Qe3 Rc7 Rd8 Re8 Rd7 h8R Rd1 Rb4 R1d6 Rd4 Rc6 Red5 Qf8 Rb5 Qg8 Rc4 Qc5 Rd4 Qe3 Rd8 Bg7 Rd2 Bc3 Rf2 Bd2 Qe5 Rde7 Rd4 Rd7 Nge7 Rh6 Ng6 Re6 Qg7
1Bb2K2/N2b1np1/2R1pQb1/rB1P1br1/N1b2NR1/nNPN2B1/n7/7k b - - 0 1 illegal: No proof kernel
bNR5/b1nQpB1K/n5B1/5r1B/4k3/1nB2P2/P2rrb1p/1bR1BNR1 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Ke2 Kf7 Ke3 Ke6 Kf4 h5 c4 b5 f3 d5 c6 d4 g6 b3 Kg5 Ke5 c5 b2 c7 d3 g7 d2 Kg6 h4 c6 b4 Qe2 d1R Qe3 h3 Qd2 h2 Bd3 e3 Ne2 b3 Rg1 Ra5 Nd4 Bb7 c8B e2 c7 e1B Bg4 Nf6 c8R Rh5 g8B Ne8 Bf7 Rf5 Bh5 Bg7 Kh7 Ba8 Bc2 Qd5 f4+ Kf6 Be4 Bf2 Nc6 Na6 Nb8 Nec7 Qd3 Ra3 Nd2 b1B Nf1 b2 Bd2 Bh8 Qb5 Re3 Qd7 Re2 Be1 Rdd2 Bc2 Qf3 Be4 Rb5 f5 Ke5 f6 Kf4 Beg6 Rf5 Rf8 Ke4 Rc8 Bd3 Rc1 b1N Bg8 Ba7 f7 Bhd4 f8B Bf2 Bh6 Nc3 B8f7 Na4 Bf8 N4c5 Bg7 Bb1 Bc3 Nb3 gxf3+
B3RN2/nPn1nR2/1b5N/p1kB1rb1/Q1r1N1b1/3p4/PK1n1r2/1B4NN b - - 0 1 legal: proof: e4 b5 c4 g5 f4 c5 e5 f5 exf6 bxc4 d4 Nc6 dxc5 Nb8 h4 Qb6 g4 Ba6 f5 Bh6 Bf4 gxf4 g5 Bf8 h5 Bc8 Qg4 Qe6+ Qe2 Qf7 Qd1 Qg6 hxg6 Ba6 Qa4 Bb7 Qd1 Bc8 Kd2 h5 Kc1 d5 b4 Kd7 c6+ Kd6 f7 e5 f6 a5 b5 f3 b6 h4 c7 c3 g7 d4 g6 e4 Nh3 f2 Qd2 c2 Qf4+ Kc5 Ng1 e3 Bd3 f1N Nd2 e2 Kb2 h3 Re1 Ne3 Nf1 h2 Ng3 Ne7 g8N Rh5 g7 Rf5 Nh6 N3d5 g8B Nbc6 Qh4 c1R Bb1 d3 Qa4 Na7 Rf1 Bg7 f8N e1B Nh7 Rc4 Ng5 Bf2 Re1 Bd7 c8B Nc7 Bb7 Rf8 Ba8 Rf7 b7 Be3 N5f3 Bg5 Nd2 Rf2 Re2 Bg4 Re4 Rf8 Bd5 Bh8 Re5 Bg7 f7 B7f6 Qd1 Be3 Qa4 Bfg5 N1e2 Rf5 Rf1 h1N Ng1 Nf2 Nh1 Ne4 Rf3 Nec6 Re8 Ne7 Nf1 Nd2 Nfg3 Kd6 Rf2 Bb6 Rf4 Kc5 Rf1 Rg8 f8N Rg6 Rf2 Re6 Rf1 Re2 Rf4 Rf2 Rf3 Re5 Rf7 Ref5 Ne4+
Nb1b4/1R1n3B/1n1BR1r1/2r1R1B1/P1B1P2b/3bp2N/4bp1K/k1BQ1b2 b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 dxc5 d5 b4 axb4 e4 dxe4 f3 e3 Ke2 Qd7 Ke1 e2 Kf2 Qd8 Bg2 e5 Bf1 e4 Kg2 e3 Nd2 Qe7 Nb1 Qe4 fxe4 Be7 Kg3 Bd6+ Kg2 Bf8 a4 Ke7 c4 Kf6 h4 Ke5 h6 e1B h7 g5 h5 b5 c6 f5 c7 f4 c5 b3 c6 f3+ Kh2 b4 h6 g4 Na3 b2 Be2 b1B Qd7 b3 Bd1 b2 Qd2 Ne7 Qa5+ Kd4 Be2 Rg8 Qd5+ Kc3 Nh3 Bd3 Nc4 b1B Nb6 Ra5 Na8 Bca6 c8B Rc5 c7 Bh4 Bf5 f2 c8R Rg6 Re8 Nc8 Re5 Nd7 h8B Ncb6 h7 Bfe7 Bf6 Bd8 h8B Ba2 Qd6 B2c4 Bg5 Kc2 Ra3 Kb1 Rb3+ Ka1 Bhf6 Bcb5 Be7 Bbc4 Qd5 Bcb5 Bd6 g3+ Kg2 Bbc4 Bf1 Be2 Qd1 Bcd3 Rg1 Bac4 Kh1 g2+ Kh2 Nd5 Rb7 N5b6 Be6 Ba6 Bg8 Bab5 Rh1 Ba6 Bh7 g1B+ Kg2 Bh2 Re6 Be5 Rg1 Bef6 Kh2 Bc7 Rg3 Bb8 Rf3 Bd8 Rf5 Bf3 Be2 Bg2 Rfe5 Bf1 Bf6 Bc2 Bb5 Bcd3 Bc4 Bde2 Bg5 Bb5 Bd5 Bbd3 Bc4
1nb2nN1/2P1B1Q1/k4p1r/r1nN2N1/1rNK1P1N/p3B2n/5r2/R3rRR1 b - - 0 1 legal: proof: d4 c5 e4 d5 a4 b5 axb5 cxd4 Ra5 d3 Ra4 d4 Ra1 Qd5 exd5 Ba6 Kd2 Bb7 Ke1 Bc8 h4 g5 f4 g4 Be2 Bg7 Bf3 gxf3 g4 Kd8 g5 Bf6 g6 Bg5 hxg5 Ke8 Kf2 Kd7 b4 Kc7 c4 Kb7 d6 e5 b6 h5 c5 a5 c6+ Ka6 d7 a4 d8N d2 g7 f6 b7 d3 Ke3 a3 g6 f2 Nc3 f1R Nd5 e4 Kd4 e3 Nf7 h4 Nf3 h3 N7g5 e2 Nh4 e1N Qg4 d1R Be3 Rf2 Rf1 Ne7 g8R h2 g7 h1R c7 d2 b5+ Ka5 b6 Rh6 Qg1 Rb1 Qg3 d1N Qg1 Nd7 b8N Nd3 b7 N3c5 Nc6+ Ka6 b8B Ng6 Na5 Ngf8 Nc4 Rb4 Ba7 Nb8 Bb6 Ra2 Ba7 Nf2 Qg3 Nh3 Qg2 Ne4 Bc5 Rf2 Be7 Ra7 Rh8 Nc5 g8N Kb5 Rh7 Ra5 Rg7 Ka6 Qe4 Re2 Qh7 Re1 Rg6 Rh2 Qg7 Rhb2 Nh7 Rh2 Rgg1 Rf2 Ng5
2N5/1K5B/R2r2nQ/BP4BN/B2rr2b/1pkb1qP1/pr1p1n2/4BR1N b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 a4 cxd4 h4 gxh4 b3 b5 Bf4 a5 Bc1 Qb6 Bf4 b4 Bc1 Qb5 axb5 a4 Rh2 a3 Rh1 Ra4 bxa4 Bg7 Be2 Bh6 Bf1 Bf8 Kd2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 e5 c4 d3 f4 h3 c5 d2 a5 h2 c6 e4 a6 e3 g3 e2 a7 e1R a8B h4 c7 h3 Nc3 Nc6 Bd3 Re4 Nge2 Rh6 Bc2 Be7 Ba4 Ne5 Rf1 h1R Qe1 d1Q+ Qd2 h2 Bc6 Bb7 c8N Nd3 Qe3 d6 Bd2 Bd8 Be1 Nf2+ Qd2 Ba8 Bb7 Qb3+ Kc6 d5 Nd1 d4 Qc1 d3 Qe3 Ng4 Nf2 d2 Ra2 Rg1 Nh1 Nf2 Qb6 Qf3 Ra1 Kf7+ f6 Ke6 f5+ Ke5 Nf4 Be7 Qa6 Kd4 Nh5 Kc3 Kb6 Rd4 Be4 Bd8+ Ka7 Ne7 f7 Rhd6 f8B Ng6 Bh6 Bh4 f6 Bc6 Bd3 Be4 f7 Rg2 Bdc2 Bd3 f8B Rg1 Bg5 a2 Rc1 Re4 Kb7 Rdd4 Bc5 b3 Bb6 Nd1 Nf2 h1R Bbd8 Rh2 Nh1 Rhe2 Qf6 Nf2 Qf8 Rd6 Qh6 Rc4+ Ka7 Ree4 Kb7 Rb4 Bb1+ Kb2 Rc6 Rbd4 Rb6 Kc3 Ra6 Re3+ Kc7 Bf5 Be4 Nf8 Kb7 Be6 Bc7 Bc4 Bb6 Bd3 Bc7 R4d5 Bh7 Re4 Bb6 Ng6 Bc7 Ng4 Bf2 Rdd4 Ra1 Rb1 Bcd8 Rb2 Rf1 Nf6 Bb6 Ng4 Be1 Nf2 Ba5+
KRB3B1/nnp2PQp/1pPB4/rRbbn3/1r5q/6Bn/NN2B1k1/6R1 b - - 0 1 legal: proof: d4 e5 dxe5 Be7 b4 Bd6 e4 Bc5 b5 Bf8 b6 axb6 a4 g5 h4 gxh4 a5 f5 exf5 Qe7 a6 Qf6 axb7 Qd8 Kd2 Kf7 Kc3 d5 Kd4 h3 c4 h2 f4 Qe7 g4 Kg7 e6 Kf6 c5 Qf7 e7 Bd7 e8B Bg7 g5+ Ke7+ f6+ Ke6 g6 Kf5 Na3 Qe7 Be2 Na6 b8R Be6 Bd7 Bf8 f7 Qh4 g7 Ne7 g8B Ng6 Rb1 Ne5 Bc8 Ra7 c6 Nc5 Nc4 Ra5 Rb5 Nb7 Nb2 Bc5+ Kc3 Ke4 f8B Ra4 f5 Rb4 f6 Bf7 Bd6 d4+ Kd2 d3 Kc3 Bc4 Bf4 d2 Qa1 Bd5 Bg3 Ke3 Bd1 Ke4 Ne2 Kf3 Nc1+ Kg2 Re1 h1N Na2 Nf2 Be2 Nh3 Rh1 Rc4+ Kb3 d1N Rf1 Bb4 Ka4 Rg4 Bge6 Re8 Bg8 Rf4 f7 Bc5+ Rb4 Rf5 Kb5 Nc3+ Ka6 Nb5 Rc1 Na7 Rb5 Ng4 Rf1 Re4 Rc1 Rb4 Rf1 Nd8 Rb1 Ne5 Re1 Ne6 Kb7 Nd8+ Ka8 Rg5 Qb1 Nb7 Qg6 Rf5 Qf6 Rf3 Rh1 Ra3 Qg7 Ra5 Rg1+
1Q1B4/2R2N1n/1q1B1P2/PRpk1pr1/Kp4R1/N1r2q2/n1r1RR2/1b4nN b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 d5 cxd5 g6 b4 axb4 f6 Kd7 f7 Bg7 Ba3 Bh6 Bc1 Bf8 f4 Ra7 g4 Bg7 h4 Be5 g5 Bd4 f5 Be5 f6 Nh6 Bd3 Ra8 Bf5+ gxf5 g6 Ng8 Qb3 Bf4 Qd1 Bg5 hxg5 Ra5 Rh3 Ra7 Rh1 Ra8 f8R Kd6 a4 h5 d4 b5 Kd2 c5 Kc2 e5 Kb3 h4 a5 e4 g7 e3 g6 e2 Ra2 e1N Qh5 h3 Rf7 h2 Ne2 Nh6 g8R Qb6 g7 Nf3 Re8 Ng1 g8R Ba6 Rc7 Nc6 Ng3 Nf7 Ree2 Ng5 Qe8 Rh3 Na3 Nh7 Rg4 Rb8 Qh8 Rg8 Bh6 Rg7 Qb8 Rg5 Rf2 Bb7 Rae2 Ba8 Kb2 b3 Bf8+ Ne7 Kc3 b2 Kb3 b4 Ka4 b1R Rb7+ Qc7 Rb5 Ra1 Rb2 Rc1 Rbe2 Nf3 Rhe1 Ng1 Nh1 Rhc3 Rd1 R1c2 Rde1 Kd7 d6 Kc6 d7 Nd5 d8B Qb6 Bd6 Bb7 Re7 Ba6 R1e2 Bb7 Ng3 h1Q Rd7 Qf3 Nh1 Nf4 Rc7+ Kd5 Rc6 Nd3 Rc7 Nc1 Nb1 Kc4 d5+ Kd3 Na3 Na2 B6e7 Bc6 d6 Be4 d7 Kd4 Bd6 Kd5 B8e7 Rd2 d8N Bb1 Nf7 Rdc2 Bd8
R6q/KR2N1N1/1p4Pq/B2b3N/2N1B1nN/3p1p1P/4bk1r/q1Q1Brb1 b - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 d5 exd5 cxd4 Bh3 h5 Bf1 g5 gxh5 Nd7 f3 Ndf6 f4 g4 Ba3 Nh7 Bc1 Ng5 fxg5 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 c4 f5 a4 e5+ d6 g3 h3 f4 a5 g2 h6 b3 h7 f3 a6 b2 a7 Qe8 Kb6 Be7 d7 Ba3 d8B Bg4 c5 Be6 c6 Nf6 c7 Ng4 c8N Rg8 h8N Bd5 Nd2+ Ke3 Ng6 b1B Nce7 e4 Bd3 Kf2 Nc4 e3 Nh4 e2 Be4 e1Q Ne2 g1Q Bd2 Bd3 Nf4 Qe3 Qc1 Be2 Nh5 Rb8 a8N d3+ Kc7 Bc5 g6 Qh6 Ra4 Rg7 Bb4 Qeh8 Be1+ Kf1 Rh2 Qd4 Rb4 Qa1 Rh1+ Bg1 Ra4 Ne3 Kb6 Rh7 Ka7 Ng4+ Bb6 Rg7 Ra3 Rgg8 Ra6 Rge8 Nc7 Rec8 Ne8 Rc5 Na3 Rc2 Nc4 Rc8 Ra3 Rc5 Bba5 b6 Neg7 Rb5 Rh2 Rb1 Rg2 Nf6 Rg5 Ng4 Rf5 Rd2 Rf8 Rdb2 Rb8 Rc2 Bed2+ Kf2 Rb7 Ra2 Rb3 Rab2 Rb5 Ra2 Rc5 Rab2 Rc8 Ra2 Ra8 Rc2 Qa3 Rf1 Qc1 Bd1 Re8 Ke2 Be1 Rd2 Ne5 Ke3 Qc3 Rh2 Ra8 Be2 Qa3 Bd1 Nc4+ Ke2 Bec3 Kf2 Qc1 Be2 Be1+
2R2BR1/1qQ3Bp/p7/bBRr2r1/2Nq1RNR/P1P1r2n/K1kp2q1/3b4 b - - 0 1 legal: proof: d4 e5 e3 c5 e4 c4 dxe5 c3 bxc3 f5 Bd3 fxe4 Bc4 Qc7 Bf1 Qd8 h4 g5 Qg4 gxh4 Qf3 b5 Qd1 b4 Be3 b3 Qg4 b2 Qd1 Nc6 Bd2 Nd4 Bc1 Nb3 cxb3 Bc5 Nf3 Bb4 Ng1 Bf8 Kd2 Ke7 Kc2 Ke6 g4 d5 f4 a6 a3 d4 b4 Kd5 Kb3 d3 g5 e3 f5 Ke4 b5 e2 f6 e1Q g6 h3 b6 h2 e6 Qf2 f7 Qg2 g7 Qf3 b7 Bb4 f8B Ne7 g8R Ng6 b8R Ba5 e7 Bg4 Ka2 Qd4 Nh3 Qg2 Rc8 Nf4 Rc5 Rd8 Nd2+ Ke3 Rb1 Rd5 Nf2 Nh3 Qa4 Rg5 Qc6 Bd1 Qc7 Rd5 Ra1 b1R Be2 Rb6 e8R+ Re6 Rc8 Re4 Rf1 h1Q Rb1 Rg5 Rb4 Ree5 Bg7 Qb7 Bf8 Qhg2 Rh1 Ref5 Bf1 Rd5 Nc4+ Kf3 Be3 d2 Ng4 Ke4 Ra4 Be2 Bf4 Kd3 Be5 Kc2 Beg7 Bd1 Be2 Qgf2 Rf1 Qg2 Rf4 Nf2 Nb2 Bb4 Rf7 Qb6 Be7 Qg3 Rge8 Ba5 Nh2 Qb7 Bb5 Qde5 Rh4 Qd4 Rff4 Nh3 Ng4 Qg2 Red8 Re8 Nc4 Qg3 Bd6 Re3 Rg8 Qg2 Bdf8
B6R/PkpnbP2/2q5/rNr1qR1p/N3NQN1/1rBb4/B1p4N/6Kb b - - 0 1 illegal: No possible last move
2r1b1R1/Rp1pR2K/1np4n/1BP1n2Q/4NP2/N2n3n/4r1R1/1RbBN2k b - - 0 1 illegal: No proof kernel forced: wxLB
b3Bq2/5Qk1/RK6/2Nb1B1p/1p1R3B/2nqPq1R/1Pb2p1R/1qR2N1n b - - 0 1 legal: proof: d4 a5 f4 b5 a4 e5 d5 exf4 d6 b4 Bd2 cxd6 Nf3 d5 Ng1 d4 Bc1 Ra7 Ra3 Rb7 Ra1 Rb5 axb5 Qg5 Nd2 Qe7 Nb1 Qd8 g4 g5 h3 f5 Qd3 h5 Qd1 f3 Bg2 f4 Bf1 Be7 h4 Rh7 Ra2 Rf7 Ra1 Rf5 gxf5 g4 Qd2 Qc7 Qd1 Bg5 hxg5 Qd8 Kd2 Kf8 Kd3 d5 c4 a4 f6 f2 g6 a3 b6 f3 f7 g3 c5 a2 c6 g2 c7 Na6 g7+ Ke7 f8R Nh6 g8B Ng4 b7 Be6 c8R Nc7 b8R Nb5 Qe1 Nc3 Nh3 g1Q Bf7 Kf6 Nd2 Qg3 Nf4 Kg7 Bh3 f1B Rh2 Bg2 Be8 Qf6 Nf1 Nf2+ Kd2 d3 Ke3 d2 Nd3 d1B Nc5 Qd8 Kd4 Bc2 Bg5 Nh1 Bf5 f2 Bh4 Qf3 Rc1 a1Q Rb6 Qb1 Ra6 Qe7 Rd8 Bg8 Rff6 Qf8 Ra3 Bf7 Rfa6 Be6 Qd2 Bg8 Qe3 Bf7 Qe6 Qd3+ Ke5 d4 Rb3 Qf3 Rd7 d3 Kd4 d2 Kc4 d1Q Rd4 Na2 Kb5 Nc3+ Kb6 Qfd3 Qd6 Bfd5 Qe6 Ba8 Rba3 Bgd5 Rb3 Na2 Rba3 Qf3 Re3 Nc3 Red3 Qf4 Rdh3 Qd3 e3 Qf3 Qf7+
3R3r/pB1Pq1b1/1p2N3/p2Qr1k1/KpP1R1B1/RR1q3n/2n2BNR/2b5 b - - 0 1 illegal: Other
KB3r2/Nn5p/Rb4Nr/kNrPPb1R/p2p4/Np4QB/4B3/2N2b1q b - - 0 1 illegal: No possible last move
4BB1q/2B3B1/8/pP1pbRNq/qn2Q3/p1N1p1Pn/B6k/N2bnKR1 b - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 f4 b5 e4 bxa4 exf5 Qb6 f6 Kd8 f5 Kc7 f7 Kc6 f6 Qd8 Bh3 h5 Kd2 g5 Ke2 Rh7 Qf1 Rg7 Kd1 a5 Qe1 Ra6 Nc3 Rb6 Nb1 Rb5 Bf1 Rf5 gxf5 g4 Qd2 g3 Ke1 g2 Qd1 Rg3 hxg3 Bh6 Rh3 Bg7 Rh1 Bf8 b4 Kd5 c4+ Ke4 c5 d5 b5 e5 c6 h4 c7 d3 Be2 a3 Qc2 h3 Nf3 g1N Bf4 h2 Nd4 Nh6 Kf1 Ng4 Nb3 Bd6 f8B Nf3 f7 Nc6 f6 Nb4 Rg1 h1Q Bg7 Nf2 f8N Bg4 c8B Qh5 f7 Nh3 Bd7 Ne1 Ne6 Qdh8 f8B Kf5 Nc3 e4 Rd1 e3 Be8 Be5 Na1 Bf3 Rc1 Kg4 Ng5 d2 Qe4 d1Q Bc4 Qa4 Ba2 Bd1 Rc2 Qg6 Rf2 Qgh5 Rf3 Nf2 Ne6 Kh3 Ng5+ Kh2 Nb1 Bd4 Bc7 Nh3 Nc3 Be5 Rf5
2b3R1/2q2krp/r1BRb2p/2R1R2R/2p2N1r/PQB1p2N/2q1P2K/2r3B1 b - - 0 1 legal: proof: f4 a5 c4 e5 h4 a4 h5 e4 h6 gxh6 b3 axb3 Nf3 Bd6 Ng1 Be5 fxe5 Qe7 Rh2 Qg5 Rh1 Qd8 Nf3 b5 Ng1 c5 Ba3 b4 Bb2 Nf6 Bc1 Nd5 d3 Nc7 d4 Nb5 cxb5 c4 Kd2 Na6 Ke1 Nc5 dxc5 Ke7 Kd2 Kf8 Ke1 Ke8 Kf2 f5 Kg3 d5 a3 e3 b6 d4 c6 b2 e6 b3 c7 f4+ Kh2 f3 g4 d3 b7 f2 b8B d2 g5 Bd7 c8R Kf8 g6 Ra6 g7+ Ke7 g8R Ra4 Bg2 f1R Bc6 Rf4 Nh3 Ra6 Nc3 b1Q Bb2 Qc2 Bd6+ Kf6 e7 Kf7 e8R Rh4 Nd5 Qc7 Nf4 Be6 Bc3 b2 Rc1 b1B Bde5 Qe4 Qb3 d1R Rc2 Qg6 Rd2 Rc1 Bd6 Qc2 Rdd1 Bf5 Re5 Bg4 Rdd5 Be6 Rcd8 Bc8 Rc5 Be6 Rhg1 Bc8 R1g5 Be6 Rh5 Bc8 Rg1 Rg8 Rd1 Rg7 Rg8 Qb2 Rd4 Bbf5 Rdd5 Qa5 Bc7 Bfe6 Rd6 Qc2 Bd8 Rhg4 Bh4 Qc7 Bf2 Rh4 Bg1
3k2q1/B1P2r1B/2R1B1Q1/R3qp1B/3qprrp/2p5/n1KN3P/Rr1N2B1 b - - 0 1 illegal: No possible last move, all moves rejected
4nK1b/1r1Bn1N1/1nR3q1/5nBr/kN1R3R/2P1rb2/1PnQq1R1/1b1N3R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kd3 d5 f4 Kd7 g4 a5 f6 h5 f5 h3 g5 h2 b6 Kc6 c3 Kb5 b7 a4 g6 a3 g7 a2 f7 h4 f6 e4+ Ke2 h3 Kf2+ d3 Ke3 d4+ Kf4 e3 Kg5 e2 Kg6 e1R Nd2 Ra7 Ne4 Re3 Ng5 Na6 b8R+ Rb7 N5f3 Ne7+ Kg5 Nc7 g8R Ne8 Rg7 Bf5 Qd2 Qb6 Rc8 Ka4 Ne1 Rh6 Rg6 Bg7 f8N Bh8 f7 Rh7 Rb1 a1N Ne6 Nc2 f8R Qa6 Rc6 Rh5+ Kf4 Qb6 Rg2 Bh7 Ng7 Qa6 Qf2 d2 Nd3 d1Q Nb4 d3 Qd2 Qe2 Rff6 Bg6 Rfd6 Bf5 Rd4 Be4 Qd1 d2 Qe1 d1N Qd2 Qe1 Bc4 Qe2 Be6 Qad3 Bf5 Bf3 Be6 Qg6 Bd7 Be4 Nf3 Bf5 Ne5 Be4 Ned3 Bf5 Re1 h1B Nf2 h2 Reg1 Be4 Rg4 Bhg2 Rh4 Bgf3 Rg2 h1N Ra1+ Na3 Rb1 Ng3 Ra1 Ngf5 Ke5 Qg5 Ke6 Bb1+ Kf7 Qg4 Kf8 Qg6 Na2+ Nc4 Nb4+ Kb3 Ra5 Nb6 Re5 Ka4 Ree6 Qh7 Rh6 Qg6 Rh7 Re6 Rh1 Nde3 Nd1 Nc2 Rh6 Re3 Rh7 Rg5 R7h4 Rh5 Qe1 Rd3 Bg5 Re3 Qd2
n1rR2n1/7Q/n1r1Rbq1/1N2Rrr1/K1R3RP/B2qB1bP/4BNbk/1q6 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 b5 axb5 exf4 Nf3 h5 Ng1 h4 gxh4 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 Ke7 b4 Kf6 e4 Ke5 c4 g5 Kc2 d5 Kb3 a5 b6 f5 h3 Rh5 b5 f3 c5 f2 b7 d3 c6 g4 c7 g3 b6 d2 Qf3 d1N Qc3+ d4 Nd2 Kf4 e5 a4+ Kc2 a3 Kb3 a2 e6 g2 e7 d3 e8R Kg3 Qh8 f4 Ba3 f3 Re5 Na6 b8B Ne3 b7 Nc4 Ra5 Nb6 Rh2 Bd6 Rd1 a1B Rc5 Bf6 Re1 Bg4 Nc4 d2 c8R d1R Nb2 Rc1 Qh7 Qd7 Bb5 f1R Nd3 f2 Re6 Bf3 Ba7 Bc7 Rd8 Rc8 b8R Na8 Ka4 Qf7 Rf5 Rc6 Be3 Rg5 Rfd5 Be4 Nf3 g1Q Nd4 Qg6 Bc4 Qh1 Rb4 Bce5 Nb5 Qf3 Bb6 Qff5 Rh1 Bg2 Rd4 Qf3 Rg1 Qe2 Rg4+ Kh2 Ba7 Bg3 Bc5 Rb1 Re1 f1Q Bf2 Qd2 R1e5 Qg1 Bd4 Rf1 Be3 Rff5 Nf2 Qb1 Be2 Qdd3 Rbc4
K5Bb/RrN5/2rBq3/3b4/1qr2PP1/BqB2q1n/1R1nB2Q/k1RbnN2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 a5 Kd5 e5 b4 h5 c4 h3 g4 h4 c5 d3 b6 h2 b7 d2 f3 a4 b5 e4 b6 h3 c6 e3 c7 e2 Na3 e1Q Be2 Ra6 Nc4 a3 Qc2 d1B Ne5 a2 Nd3 Qe7 Bf1 Q7b4 Bd2 Bg7 Be3 Rh7 Qb3 Bh8 Qa3 Nc6 b8B Ne5 b7 Rc6 Nc5 Nd3 Rc1 a1R Rc2 Rc1 Ne2 d6 Rg1 h1Q Qa2 h2 Ng3 Qg2 Be2 h1N Na6 Nhf2 Bb6 Nh3 Nf1 Rc4 Bc5 Be6+ Kc6 Ke5 c8B Nf6 Nc7 Ne4 f6 d5 f7 d4 f8B Nd2 Bd7 Qgf2 f4+ Ke4 Rg2 Qf3 Bd6 Re7 Be8 Rh7 Bf7 Bd5+ Kd7 Rg7 Kc8 Rh7 Bg8 Rf7 Bb6 Rc6 Rb2 R1c4 B8a7 Rh7 b8R Re7 Kb7 Rh7 Ka8 Rd7 Nb5 Rb7 Nh2 Ke3 Nc7 Ke4 Ba5 Ke3 Bf1 Qee2 B7b6 Ne1 Bbc5 Kd3 Rd8 Kc3 Rd7 Qe5 Be2 d3 Nf1 Qe6 Ne8 Rb5 Ra7 Rb7 Nc7 Qf6 Qa1 Qe6 Rc2+ Kb3 Qd4 Ka3 Qg1 Kb3 Qh2 Ka3 Rc3+ Kb2 Rc2+ Ka1 Rf2 Ne4 Rb2 d2 Rg2 Bb3 Rf2 d1Q Rc2 Nd2 Rb2 Qbc3 Ba3 Qb4 Rc2 Qb1 Rb2 Bd1 Rg2 Qa4 Bc3 Qb4 Bd3 Qa2 Rf2 Nb3 Rfc2 Nd2 Be2 Qab3 Rc1+
b1nBb2n/1BrR1rnB/1q2N1qP/1N4b1/P1rr2q1/2k2N2/Q1N5/1R2NK2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 a4 Kf6 d4 g5 e4 c5 h6 b5 h5 b3 h7 f3 d6 c4 h6 g4 d7 g3 d5 Ke5 d6 f5 Be3 c3 Qd3 b2 Ne2 b4 Nf4 f2+ Ke2 c2 Bg2 f1N Ke1 c1R+ Ke2 b3 Qd1 Nc6 Rh2 Bb7 Bb6 Be7 Ra3 Ra7 Qe1 Ne3 Qb4 Bg5 Qd2 Ba8 Nc3 b1Q Rh1 b2 Nb5 Rc7 Rd3 Nge7 Re1 Re8 h8N Nc8 Rd4 Qf6 d8N Rc4 d7 N6e7 Nde6 Qg6 d8N Rf8 Rh1 Rf7 Rd7 Rd4 Bf3 g2 Ba5 g1Q Ng2 f4 Ne1 Rdc4 Ned4 N3f5 N8e6 Ng7 Ndc2 Qg4 Kf1 Rd4 Bg2 f3 Rg1 Rcc4 Bd8 f2 Bh1 Qa2 Bf3 b1B Bg2 Qb3 Qe2 Kf6 e5+ Kf5 Bb7 Rc7 Nc3 Qb6 Nb5 Ba2 Qd2 Bd5 Rh1 Ke4 Rg1 Rf4 Nf7 Bc6 Qe2+ Kf5 Qc4 Ke4 Qa2 Rc4 Nfd6+ Kd5 Nbd4 Re4 Ndf3 Rd4 Nb5+ Ke4 Rd5 Be8 Rh1 Nef5 Rg1 Nfd6 Rh1 Nf7 Rd7+ Qc6 Nf4 Nh8 e6 Q4h5 e7 Qg4 Rd5 Qb6 Ne6 Bc6 e8B Bd7 Ng2 Kd3 Bf7 Be8 Bg8 Nf7 Rd7 Nh8 Nd6 Kc3 Nge1 Nf7 Bh7 Nh8 Rh5 Be3 Rb5 Bg5 Ke2 f1R Rb1 Rh1 Kf2 Rh2+ Kf1 Re2 Nf4 Re7 Ne6 Rf7 Nb5+
K1k2Rb1/nn5b/1BB2n2/3Pn1bR/2N2r1N/Bqr2PB1/6N1/n2Q1rBn b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 e5 b4 h5 g4 a5 d4 c5 g5 h3 b6 a4 g6 h2 b7 h4 d6 h3 b5 a3 b6 c4 d5 a2 g7 c3 Bb5+ Nc6 b8B c2 b7 Qb6+ Qd4 Ra4 Nd2 Be7 Ba3 c1R Ndf3 Rc3+ Bd3 Na7 Nd2 Qb3 Rf1 a1N Ngf3 Nf6 Nc4 Rf8 g8N Kd8 Ne1 Be6 Nh6 Bg8 d7 Rf7 Rhg1 h1B Nf5 h2 Nh4 Bf3 Neg2 h1N Bbd6 Bg4 b8B Bf5 Bdc5 Bfh7 Nf4 Rb4 Rg5 Ra4 Nfg2 Rb4 Ke2 e3 Rh5 e4 Bg3 Rf8 Bc2 Rf7 Qd1 Ra4 Ke1 e2 Kd2 e1N Bd4 Nd3 Ke3 Nc5+ Kf4 e3 Ke5 Kc7 d8B+ Kb8 Bb6 e2 Bd3 Bd8 Kd6 e1N Bg6 Rf8 Be8 Kc8 Bc6 Rf7 f3 Ned3 Re1 Ne5 Bg1 Rg7 Re2 Rg4 Rb2 Re4 Rc2 Re1 Re2 Rf1 Re4 Nfg4 Rf4 Bg5 Rf6 Ne6 Rf8+ Nd8 Kc5 Nf6 Bc7 Qc2 Kb6 Rb4+ Ka6 Qb3 Bcb6 Ra4+ Na5 Rg4 Nc4 Rf4 Bbc5 Nb5 Bcf2 Nc7+ Ka7 Nb5+ Ka8 Na7 Rf7 Nb7 Bd4 Neg4 Bb6 Ne5 Rf8+
1k2r3/nbrBbKR1/6Q1/1NP2BRP/3B3n/q2q2Br/B2rR3/1Nrrq3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 f5 Kd3 g5 Kc4 a5 Kd5 a4 h4 g3 b4 a3 e4 g4 c4 f4 c5 g2 e6 f3 e5 a2 b6 d3 b7 g3 b5 d2 b6 f2 e7 Nh6 Kd6 Nc6 b8B Bb7 Ne2 g1R Rh2 g2 Qc2 d1R+ Nd4 Rd2 Bd3 f1Q Nb5 Qe1 Bb2 Na7 Bd4 Rh7 h5 Rh1 Bc4 g1R Re2 Rh3 Qg6+ Rf7 Bd3 Rgh1 Bf5 Rg1 N1c3 Rgh1 Rc1 a1Q Nb1 Qa3 Rc3 Rf1 Rg3 Rg1 Rg5 Rgh1 Be6 Rg1 Ba2 Rf1 Qe4 Rg7 Qc6 Nf5+ Kd5 Nh4 Bc7 Kf7 e8B+ Ke7 e6 Rb8 Ke5 d5 Bg6 Qd7 Bd6+ Kd8 Bf5 Be7 Bc7+ Kc8 Qd6 Bf8 Kf6 Rh7 Rg7 Be7+ Kf7 Qd8 Qg3 Qd6 Qg1 Qdg3 Bf4 Qgd3 Qg6 Ra8 Bg3 Rfh1 Bc3 d4 Bb2 Bd6 e7+ Kb8 e8B Rf1 Bf2 Be7 Bed7 Bf8 Re5 Rc2 Bae6 Qdd2 Re4 d3 Ke8 Bd5 Rg4 Qee3 b7 Rfc1 Bc6 Qde1 Re7 d2 Rg5 d1R Bg7 Rcd2 Bd4 Qed3 Qh6 Rg7 Bf7 Rh7 Re2 Bf3 Ba2 Bh1 N5c3 Kc7+ b8R Be4 Bg3+ Bd6 Qg6 Bg2 Bb5 Bb7 Rd8 Rc8 Bc6 Kb8 Nb5 Rc7 Bcd7 Bf8 Kf7 Be7 Rg8 Re8 Rg7
5bB1/4R1Bn/1r2bNqn/1Pr1k3/qb1P1N2/3BN2N/q2R1Kbb/1b1Q3N b - - 0 1 illegal: No possible last move, all moves rejected
1Rrb1Nq1/1B2P1P1/Qq2B2K/3BqBn1/5nqR/Rb3r2/3Bqk2/2N2bq1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 a4 Ke6 g4 Kd5 c4+ Ke4 e3 f5 e6 d5 c5 h5 c6 b5 e7 d3 e8R+ Ne7 g6 f4 c7 h4 g7 b3 g8B d4 g5 f3 g6 b2 g7 b4 a5 f2 a6 b3 a7 h3 Qe1 h2 Ne2 Kf3 e4 Nbc6 e5 Rh3 e6 Ne5 Ng3 N7g6 Rg1 h1Q Na3 b1Q Ne2 b2 Nb5 Qh2 Ra4 Nf7 Rg4 Ng5 Ra3 Qe5 Rh4 Be7 Bf7 Bd7 c8B Nf4 Nc7 Ba4 Bb7+ Qdd5 Reh8 Rc8 a8B Bd8 e7 Bb3 Ne6 Rg3 Bh3 f1B Qd1 Kf2 Nf8 Rf3 Bf5 Qa1 B7e6 b1Q Rg8 Qaa2+ Qc2 Qc5 Bbd5 Qb6 Bab7 Qbb2 Kd1 d2 Rgh8 Bc4 Qa4 Q2b5 Qa6 Qe8 Nd7 Qg8 Nf8 Qab1 Nc3 Q1b5 Na2 Qe2+ Kc2 d3+ Kc3 d1Q Bd2 Qde1 Nc1 Bb3+ Bbc6 Qb8 Kd4 Qd6 Bb7 Qdd7 Be4 Qb6+ Ke5 Qdd6+ Kf5 Qe5+ Kg4 Q1d1 B4f5 Qde1 Ba5 d2 Bc3 d1Q Bd2 Nd3 Kh5 Nf4+ Kh6 Q2e3 Bc3 Qe1e2 Bd2 Q3e4 Bh7 Q4f5 Bg6 Qg4 Bd3 Bg2 Bc2 Qg1 Bf5 Bf1 Ra5 Rc2 Qb5 Qf7 Nh7 Bc7 Rb8 Bd8 Nf8 Rc8 Ra3 Qg8 Qa6
2B4K/6nb/P2qBrk1/2NN2n1/3bR3/qQ2BbRB/3PBR1n/n2br2b b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 c5 Kf3 b5 Ke4 h5 Ke5 f5 g4 Kf7 e4 c4 a4 h4 a5 b3 a6 b2 d6 h3 d7 b4 Nc3 b1Q Ba3 f3 Qc2 h2 Qc1 b3 Qc2 f4 Nd1 b2 Nh3 c3 Be2 f2 Bc5 f1N Ra3 f3 Nf4 f2 Ne6 Kg6 Be3 Qc1 Nc5 b1B Qb3 c2 Nc3 Nh6 Nd5 Bb7 Ra4 Qb6 d8R Qa3 Rg1 h1B Rg3 c1N Rc8 Be7 Rf8 Nh2 Rf7 f1B Rf2 Qd8 Ke6 Bd3 e5 Nf5 Rc4 Nd7 Re4 Kg7 g6 Rh6 g5 Nf6 Rb4 Nh7 Re4 Kh8 Kf7 Ng7 e6 Bf6 e7 Qd6 e8B Bd4 Ba4 Re8 Bd7 Bc2 Bc8 Bd1 Bh5 Bd3 Be2 Na2 Bh3 Nb4 Bc8 Nc2 Bh3 Nf6 Bc8 Na1 Bh3 Ngh5 g7+ Kh7 Bc8 Re7+ Kf8 Kg6 g8B Ng7 Bge6 B3c2 Bh3 Nh7+ Kg8 Re6 Kh8 Rf6 Bef1 Rh4 Be2 Rg4 Rgf3 Rg1 Rg3 Re1 Bd3 Kh5 g6 Ng5 Bb5 Nf5 g7 Kg6 g8B Ng7 Be2 Ba8 Bge6 Bb7 Ref4 Bc6 Nc3 Bcf3 Re4 Kh6 Reg4 Bh7 Nd5 Kg6 Re4
NkRn2N1/2bqP3/4r1r1/1N3BB1/3qP1Kn/1q2R2r/2br1B2/rq1Q1N1N b - - 0 1 illegal: No possible last move, all moves rejected
rB3krr/n2R2B1/b2b3R/B4n2/4NRP1/P2Bb2q/B1rq2N1/1KQ3nb b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 e4 c5 g4 f5 d4 h5 Kd2 b5 Kc2 c4 e5 f3 d6 h4 d5 b3+ Kb2 f2 a3 h3 e6 f4 e7 h2 g6 b4 g7 f3 Bh6 c3+ Kc1 b2+ Kc2 b3+ Kd3 c2 Nh3 c1B Nc3 b1R Ne4 b2 Kc2 Nc6 Nf4 Be3 Ng2 Ba6 Qc1 Na7 Bd3 f1N d7+ Kf7 e8R f2 d6 Ng3 Rf1 h1B Re6 Ne7 Rg6 Qa5 d8B Ne2 d7 Nf5 Bc7 Ng1 d8B Bd6 g8B+ Ke8 Rd1 f1Q Bb8 Qf3 Bf8 Qh3 Ba2 Rg8 Rh6 Qd2+ Kb3 Kf7 Bg7 Rh8 Ba5 Kg8 Qc2 Rc1 Rf1 Kf7 Rf4 Ke8 Qc3 Rc2 Rd1 b1R+ Qb2 Rbc1 Qa1 Rc8 Qb1 R1c7 Qc2 Ke7 Kb2 Rcg8 Kb1 Ke8 Qc1 Rc2 Bf1 Qf2 Rd5 Qd2 Bd3 Ke7 Ba1 Kf8 Be5 Be7 Rd7 Bd6 Bg7+
4q1bR/1r4R1/1N1Kn2N/3b1PqN/nP5N/2N2bR1/kb2rr2/qrB2BQ1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 b4 c5 d4 a5 g4 e3 f4 e4 b6 a4 f5 e2 g5 e1Q b7 h3 g6 h2 g7 h4 Nc3 a3 Nce2 e3 Qc2 h3 Qd2 a2 Qc3 Nd7 b8R Ra7 Qd3 Ne7 g8N Nb6+ Kb5 c4 Qe4 c3 Rb7 c2 Ba3 c1R Nh6 Be6 Qd3 Bg7 Nf3 Rb1 Nc3 e2 Nh4 Bg8 Bc1 Ng6 Qg3+ Nf4 Qg1 Ne6 Rc7 Be5 Rg7 Na4 Kc4 Rb7 Rg3 Kc7 d6+ Kc6 d7 Qg5 d8N+ Kb6 Kd5 Bf6 Nd1 Kb5 Kd6 Kc4 d5 Bb2 Nc3 Kb3 Nc6 Rhh7 Ne5 Rhc7 Qd4 Rc5 Rhg1 h1B Nc4 h2 Nb6 Bf3 R1g2 h1B Qg1 Qf6 Rg7 Qg5 Rg3 Ka3 Ng4 Rc4 Nf6 Rf4 Nh5 Kb3 Ke5 Bhg2 d6 Bd5 d7 Rf2 d8N Bgf3 Nf7 Ka3 Kd6 Nec5 Be3 Bh1 Ng2 Be4 Nf6 Rc1 Qh2 Bd5 Rb1 Rc2 Rd1 a1Q Rd4 Rc1 Qg1 Rb1 Bc1 Kb3 Nf4 Bhf3 Ng2 Ka3 Rh4 Kb3 Nb5 Ka2 Rh5 Qd1 Rh8 e1R Nh4 Qe2 Nh6 Qe8 Nh5 Ree2 Nf4 Ne6 Nc3+ Ka3 Nh5 Kb3 Ne4 Ka2 Nc3+
rb3bB1/QqqN2nr/1RPB4/4rb2/1q2r1N1/B2KR2q/nP1B2k1/3BN3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 f4 Kf6 g4 h5 c4 e5 c5 a5 b6 d5 b7 h3 Bd2 d3+ Ke3 d4+ Ke4 h4 Qc2 a4 Bc3 a3 Qd2 h2 Qc2 d2 Ne2 d1R Qa4 d3 Ra2 d2 Qb5 h3 Qb3 Rh7 Ng3 Re1+ Be2 d1R Nf1 Ne7 Nbd2 Nbc6 b8B Nb4 Bd6 Qc7 Nf3 Rd5 Bd2 Bd7 Rg1 h1Q Ne3 h2 Bd1 Bc8 Ra1 a2 Rg3 Qg2 Qd3 h1Q Qa6 Qgh3 Qa7 Be6 Rc1 a1Q c6 Qaa5 Rc5 Na2 Rb5 Qb7 Rb6 Q1h2 Ba3 Rb5 Bd6 Qb4+ Kd3 Re2 Ne1 e4+ Kc2 Re5 g5+ Kg7 g6 Kh6 g7 Kh5 g8B Kh4 f6 Bf5 Ng4 e3+ Nd3 Re1 f7 e2 Re3 Re4 Nde5 Q2g3 Kd3 Qgh2 Nf3+ Kg3 Nd4+ Kg2 Nc2 Bg7 f8N Q2g3 Nd7 Bf8 Nf2 Qg7 Ng4 Qe5 Bc5 Qec7 Bd6 Bg6 Be6 Nf5 Bg8 Ng7 f5 Re5 Be6 Re4 f6 Bf5 f7 Rf1 Bc3 e1B Bd2 Bg3 Bc4 Bg6 Be6 Rf5 Bb3 Rfe5 Be6 Be7 f8B Bf5 Bg8 Nh5 Bh6 Ng7 Bg5 Bf8 Bge7 Bf4 Ne1+ Kf1 Ra6 Qca5 Bc5 Qba4 Ndf6 Rd5+ Bd4 Bb8 Nd7 Qac7 Ba3 Qab4 Rb6 Rde5 Bc5 Kg1 Bd6 Kh1 Nc2 Kg2 Ne1+
Rr2qNRR/K1nP4/1BPNRn1n/1brbb3/2qk4/n2R1B2/2q5/Q3b1N1 b - - 0 1 illegal: No proof kernel
1n2QbN1/2N1P1B1/R4KBq/2r1Pb1b/r1bB4/1r1b3B/R2kn2N/bB3r2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 Kf5 Kc4 g4 d5+ e6 h5 b4 a5 e4+ d3 e5 a4 b6 d4 b7 h3 b5 a3 b6 a2 g5 h4 c3 h2 g6 h3 g7 Ra4 Bh6 Ne7+ Kf6 Nf5+ e7 Ng3 g8B Ne2 Bh7 d2 Bg7 d3 Nf3 Bf5 Bg6 Rh7 Rg1 h1R Rg2 h2 Rf2 Qd4 Bh3 Qe3 Rg2 Rf1 Na3+ Kc5 c4 Kb4 c5 Kc3 c6 h1R c7 Qh6 Qb1 d1B c8B d2 Nh2 Bdc2 Qb5 d1B Qe8 Kd2 Nb5 Bcd3 Nc7 Rhg1 Rf2 Rg3 Be6 Rh8 Bd5 Bc4 Be4 Rb3 Rg2 Nc6 b8B Rg8 Rc1 a1B Ba7 Nb8 b7 Rg1 Rg4 Ng3 Qc8 Bce2 Rc6 Bc4 Nd5 Na6 b8N Be6 Bhg2 Ke2 Nd7 Nb8 Bh3 Ke1 Rf4 Bh5 Bb1 Beg4 Rd4 Ne2 Rd2 Bd3 Ra2 Kd1 Bh8 Rg7 Qe8 Ra5 Be3 Rc5 Nc7 Be6 Rca6 Rg4 Nb6 Ra4 Bd4 Bc8 Nd7 Bc4 Kf5 f6 Ne6 Rf7 Ra3 Kd2 Nc7 Bd3+ Ke6 f5 Bf6 f4 Bb2 f3 Bg7 f2 Ra2 Rff4 Kd6 Bc4 Nf6 Bf5 Ng8 f1B Ne6 Nc1 Nc7 B1d3 Bd4+ Ke1 Nb5 Ne2 Nc7 Rf1 Nd5 Bfe4 Ke6 Bf5+ Kf6 Kd1 Nc7 Kc1 Bb2+ Kd2 Bd4+
1BN2q1n/3K4/B2nR2b/1Q2N1Bn/2RNq3/1p1b2rr/1rP3Pb/kB3qB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kd3 b5 Ke4 d5+ Ke5 h5 f4 d3 a4 h4 f6 d2 f5 d4 a5 b3 a6 b4 a7 h3 Qg4 d1N Ra3 h2 Be3 d3 Bc1 d2 Ra1 b2 Qh3 Nh6 Nc3 b1R Qf3 Ne3 Ra2 d1Q Ra6 Qe2 Qf4 Nd7+ Kd4 Rb2 Nf3 Nc4 Kd5 e5 Kc6 e4 Qb8 e3 Nb5 Nd6 Nbd4 Qe1 Bd2 e2 Qb5 Rh7 Ra4 Ba6 Bf4 Rb8 a8N Qe7 Rg1 h1Q Nb6 Qhh4 Bd2 Qhe4+ Kc7 Qa1 Nc8 e1B Rh1 Bg3 g6+ Ke8 g7 Kf7 Bc1 Bh2 Bg5 Qae1 Bd3 Q1e2 Re1 Qf1 Nc6 Rb6 Nfd4 Rb3 Be2 Rg3 Bd3 Qg4 Re6 Qe4 Qe5 Bc4 Qb5 Rh8 Be2 Bd3 g8B+ Ke8 Bd1 Nhf7 Ne5 Bh6 Bh5 Rh7 Be2 Nh8 f7+ Kf8 Bc1 Kg7 Bg5 Qh1 Bf1 Qf8 Be2 Nf6 Bf1 Nh5 Kd7 Bc4 Bd3 Qf1 Be2 Bd5 Bc4 Rb8 Ba2 Bc4 Bb1 b3 Rb4 Bd3 Rc4 Ra8 Be3 Bf4 Bg1 Rh6 Bh7 Ra2 Bg6 Rb2 Bh7 Rh3 Bg8 Rg6 f6+ Kh6 Bh7 Rgg3 Bg6 Kg5 Bf5 Qh6 f8B Be3 f7 Kf4 Be7 Qf8 Bg4 Bd2 Be2 Bc1 Ndc6 Kf5 Bd8 Bh6 Bc7 Kf4 Bb8 Kf5 Bc5 Kf4 Nd4 Ke3 Bb6 Kd2 B6a7 Qg8 f8B Kc1 Be7 Qgf8 Bf6 Ra2 Bg5+ Kb2 Ndf3 Ka1 Bg1 Rb2 Nd4 Qef5 Bf3 Qf4 Bb7 Qe4 Ba6
b1NBk3/2K1B3/BP1RP2q/q1NrbnnB/1r1p4/8/b1r2nR1/QBq2R2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 d5 g4 f3 c4 h4 e4 d3 b4 h3 c5 d4 g6 h2 c6 d2 g5 a4 b6 a3 g7 a2 b7 f4 g6 f2 c7 f3 b5 Be7 b6 Rh6 Nc3 Bh3 c8B Bh4 Nb5 Nf6 g8B Nh7 g7 Rh5+ Bf5 Ra4 Na7 Qg5 Kd6 Rb4 e5 Bg3 Bb1 Qh6+ Kc7 Nc6 b8B Ne7 Ne2 Nf5 Ba3 Ng5 Nc1 Bg2 Bfd3 f1R Ba6 f2 Nc8 Bd5 Nb3 Bf4 Qe1 d1N Nc5 Bc4 Rg1 h1B Rg2 Rg1 Bd5 f1Q Bf3 Nf2 Qc1 Rh2 Bh5+ Bf7 Qb2 Qc1 Qc3 Re1 Qb2 Re2 Qc3 Rc2 g8R+ Qf8 Rg6 Qh6 Rd6 Bg3 Rg1 Ba8 Rg2 Rh3 Bhe2 Bb3 e6 Bf4 Bd1 Re3 Qe1 Re5 Bg4 Rd5 Bh5+ Qg6 Qf1 Be5 Qd1 Bh8 Rd7 Re2 Bc2 Qb1 Na4 Rbb5 Be7 Be5+ Rd6 Qb2 Nc5 Rb4 Qe1 Bc4 Qc3 Bb3 Rf1 a1Q Bb1 Qc1 Qb2 Qa5 Qa1 Qb2 Bb7 Rc2 Kc6 Bc4 Bc7 Ba2 Bcd8 Qba3 Kc7 Qc1 Bg4 Qf6 Ba6 Qh6 Bh5+
1b1r1N2/2kn1p2/8/B3qr1n/PPK1BnbQ/R4B1N/1R1Br2q/3B1bqR b - - 0 1 illegal: No possible last move
5q2/1B1p1N1q/qR1BP1r1/kn3K2/R4b2/2bR2B1/rP1Nnr1B/3bB1Qn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 a5 Kf3 g5 Kg4 f5+ Kh3 d3 c4 f3 e4 d2 c5 a4 b6 g4+ Kg3 f4+ Kf2 a3 h4 a2 h6 Nc6 h5 Bd6 h7 Nd4 b7 Nh6 b8B Bb7 e5 Nhf5 h6 Ng3 c6 Qe7 c7 Rg8 h8B Nb5 h7 Rg6 e6 Ne2 Bg2 g3+ Kf1 f2 Qe1 d1N Rh3 Bf3 Nd2 Bb4 Be5 Bc3 h8B Qh7 c8R+ Ke7 Rc7 Kd8 Rb7 Ra4 Rb1 a1Q Bed6 Ra2 Bhe5 Bg4 Bc6 Kc8 Kg2 f1R Ngf3 Nf2 Bd5 Nh1 Rb6 Bh5 Rh4 Rf2+ Kh3 g2 Ng5 g1B Nf7 f3 Ra4 Bh2 Qg1 Bf4 Be4 Rfg2 Bc6 f2 Bd5 f1Q Ba8 Be3 Bh2 Rf2+ Kh4 Bh6 Bdg3 Bf4 Bd6 Nc7 Bb7+ Kb8 Rd4 Ka7 Rd3 Nb5 Ne5 Ra6 Nf7 Qa5 Ra1 Qa3 Bc7 Qf8 Bd6 Ra2 Nb1 Qd1 Bd2 Qa4 Be1 Qa6 Nd2 Nc7 Rb4 Nb5 Ra4 Kb6 Kh3 Nc7 Rb4+ Ka5 Rb6 Nb5 Kh4 Qhg8 Kh3 Ned4 Kh4 Bd1 Kh3 Ne2 Kh4 Bg5+ Kg4 Bf4+ Kf5 Qh7 Rc1 Bd4 Rc4 Bc3 Ra4+
5b2/1N2Q1nb/3nR2N/2Rn2bR/p1BR3B/1qPPrkNK/n4Rr1/3n1r2 b - - 0 1 illegal: No proof kernel
4Kb1N/3r1B2/2b1b1b1/2R1NPRq/3n1nrk/Q2PB2p/1n1N1N2/b2N1q1R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 c5 a4 b5 g4 h5 f3 h3 d6 b3 f6 h4 d7 b2 Ke6 b4 Kf7 e5 a5 b3 a6 e4 a7 c4 Ra2 e3 Ra6 h2 Nc3 b1Q Rc6 b2 Qa4 e2 Qa3 e1B Nd1 c3 Bc4 Qa5 d8N c2 Ke8 Ne7 f7 Nd5 Rc5 Be6 Nc6 Rh7 Ne5 Nf4 Bb3 Qa1 Ba2 b1B Nh3+ Kh6 g5+ Kh5 Nhf2 h3 g6 Kh4 g7 Qb5+ Nd7 Qe5 g8N Qf1 Ngf6 Qh5 N6e4 Rg7 Ne5 Rg4 Bb2 c1N Bd4 Bc2 Be3 Ncd3 Bd5 Nb2 d3 Bc3 Ba2 Bcb3 Nd2 Bbd5 Bb3 Be4 Bd5 Bg6 Bb3 Ng2 f4 Bd4 f5 Nf4 Rg1 h1B Bc4 Be4 Rh1 Bc8 Ba2 Nc6 Bd5 Rb8 a8R Rb7 Ra6 Bc3 Rb6 Nd4 Rf6 Bh7 Rg6 Be6 Rg5 Rd7 Ba2 Na4 Bb3 Ba1 Bc4 Nb2 Bb3 Bh6 Ba2 Bc6 Bb3 Ng6 f8N Nf4+ Nfg6+ Kg3 Nf7 Bf8 Nge5 Bg6 Bd5 Kh4 Bf3 Bc4 Bd5 Rc7+ Kd8 Ra7 Nh8 Ba2 Bg8 Be6 Bf7 Rd7+ Ke8
2Q5/RN1RKbr1/3n1B1b/2Pr2rB/3r1R1p/q4kNB/R2q1PrR/3q2n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 d5 g4 a5 b4 h5 g5 d3 f6 d2 g6 a4 b6 e5+ Kb5 h3 g7 d4 b7 a3 f7 h2 c5 d3 Bh3 a2 Ba3 h4 Bc1 Nf6 g8B Ne8 Na3 Ra7 Nc4 Nd7 Kc6 Rh5 b8R Nd6 b5 Rg5 b6 Bh6 Ne2 Kf3 b7 e4 Na5 e3 Ng3+ e2 Bb2 Ne5+ Kd5 Bg4 Ra8 Bh5 Ke6 Bg6 Qf1 e1R b8R d1R Rb4 d2 Qa6 Re4 Qc8 Rd4 f8R+ Rf7 Re8 Rg7 Re7 Bf7+ Kf6 Rg1 Ra7 d1Q Nb7 Rg2 Rc4 Qa5 Rd7 Qad2 Ke7 Rd5 Rg4 Rd4 Rc1 a1Q Rc2 Qa3 Bh7 Rd5 Bg6 Rd4 Bh5 Rd5 Re1 h1R Ba1 Rhg1 Ra2 Rf1 Ree4 Rfg1 Rc4 Re1 Rc1 Re4 Bc3 Red4 Rca1 Qdb3 Rh1 Qbd1 Rh2 Ng6+ Kf6 Nf4 Ke7 Ne2 Ba1 Ng1 Bb2 Ra4 Bf6 Rad4 Rf4+
q1r5/2bn1B2/qrB1p3/1NqN1bR1/1P2R3/1K2R3/PBQ1qq2/1k1bR1Rn b - - 0 1 illegal: No possible last move, all moves rejected
2BQBb1B/1rB1bnr1/P3Nb2/1RnBP1q1/6R1/2rRk2b/1K3p1N/3b3q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kd2 Ke7 a4 Ke6 c4 Kf5 Kc2 Ke4 h4 f5 c6 b5 c5 g5 c7 d5 a5 d4 e6 f4 e7 b3+ Kb2 g3 e8B f3 c6 g4 a6 g2 e3 d3 h5 b4 h6 g3 h7 d2 Bb5 Ra7 Ra2 Bh3 c8R Nh6 c7 Qg5 Ra4 Nf7 Qe1 d1B Na3 Nd7 Rd8 Nc5 c8B Rb7 Nc4 Rg8 h8B Rg7 Ne2 g1B Nd4 g2 Ne5 Bh2 Qd2 g1B Ng4 Bhd6 Rd7 Bde7 Ne6 f2 Be2 Bh2 Bc4 Be5+ Qd4+ Kf3 e4 B5f6 Bd5 Ke2 Nh2 Rc7 Kb1 b2 Bf4 Rb7 Ka2 b1R Bc7 Rb3 e5 Rc3 Kb2 b3 Qh4 Ke3 Rg4 Bf3 Ra1 Be2 Ra5 Bd1 Kb1 b2 Rb5 Rc4 Ka2 b1Q+ Ka3 Qe4 Kb2 Qh1 Be4 Rc3 Rd3+ Ke2 Bd5 Bd8 Qg3 Qf4 Bed7 Bg5 Ba2 Qf6 Qg2 Bde7 Be8 Qh6 Bc4 Bgf6 Qd5 Qg6 Qd8 Qg5 Rd2+ Ke3 Bd5 Qf1 Rdd4 Qh1 Rd3+
NNK4B/rQR2B1b/p5qr/2r1b2r/2P2B2/3q2P1/NqN1Nr1n/1n1k3R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 d5 f4 h5 c4 h3 g3 a6 b6 h2 b7 d3 b5 d2 f6 Ke3 f7 d4 b6 d3 f5 h4 f6 h3 Nc3 Nc6 b8N Na7 b7 Rh5+ Kb4 e5+ Ka4 e4 Nd7 Bg7 b8B Rc5 f8N Nb5 f7 Ra7 Bg2 Qb6 Rb1 Nf6 Rb3 Ng4 Na2 Nc3+ Ka3 Nb1+ Ka4 Be5 Ne2 Qg6 Nb6 Bf5 Ba3 Kf2 Bc7 e3 Bb2 Be4 Qc1 d1R Na8 d2 Nd7 Rf1 f8N d1Q Nb8 Ke1 Ne6 Bf5 Qc2 Qd3 Rb7 Be4 Qc3+ Kd1 N6d4 Bf5 Nc2 Be4 Nf4 e2 Qb3 e1Q Ne2 Qed2 Qb5 Qc1 Ka5 Bf5 Bc3 Qb2 Bd5 Be4 Bf7 Bf5 Rg1 h1R Bd6 h2 Kb6 Be4 Rc7 Bf5 Rg2 Rf2 Qb3 Re1 Rg1 h1R Bd4 Rh7 Rh1 Rh6 Qb4 Nh2 Qb5 Bf4 Bh8 Be5 Qb4 Qg5 Qb3 Bh7 Qb5 Qgg6 Qb4 Bf6 Bf4 Rch5 Kc6 Bd4+ Kd7 Be5+ Kc8 Ref1 Qb7 Re1 Ng1 Re4 Be8 Rd4 Bf7 Rd5 Be3 Rb5 Bf4 Rc5 Ne2+
b1rr1N2/1N1k1nrP/5rNb/1N6/1R1B1qP1/1NRq4/nQpr1bB1/3B3K b - - 0 1 illegal: No proof kernel
B1b2qR1/1n1B1RP1/1K3Bq1/3NR1rn/1Nq5/Rq3p1n/1q1P2k1/b1rQ3R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 e4 Kf6 b4 Kg5 g4 f5 d6 a5 d7 h5 e5 c5 e6 f3 Ke3 a4 e7 a3 e8B h3 b6 Kh4 b5 Kg3 b7 c4 Kd4 h2 g5 f2 g6 h4 b6 h3 Bb2 a2 Nf3 c3 Ba6 f1Q Qe2 c2 Ba3 c1Q Qe4 f4 Qd3 Qg2 Bb5 Ra5 Qf1 Na6 b8R Nf6 b7 Nc5 Ne1 f3 Nc2 Bg7 Nb4 Nh5+ Kd5 Qb6 Bc6 Qc4+ Kd6 Qg1 Qd1 Kg2 d8R Qe3 Bd7 Qeb3 Ra8 Bd4 Re1 h1N b8R h2 g7 Nf2 Rb7 h1Q Bb2 Nh3 Nc3 Rg8 Rc1 a1Q Ncd5 Rf8 Bc3 Qab2 Re5 Rf5 Ra6 Ra1 Ra3 Rg5 Rg8 Qg1 Rba7 Qd8 Ba8 Qf8+ Kc7 Rb1 Kb6 Ra1 Rf5 Bf6 Re5 Nb7+ Bd4 Rb1 Qc2 Ra1 Rf1 Rc1 Qd1 Qge3 Rh1 Qed3 Re7 Qg6 Rf7 Be7+ Bf6 Bd6 R7a5 Be5 Re1 Q2a2 Rh1 Ba1 Nc7 Qbb2 Re5 Qab3 Nd5
1KNbqBN1/1RP1r2B/Rqq1b1nQ/PB3q2/2B2Bqp/4k3/1r6/n3r1R1 b - - 0 1 illegal: No possible last move, all moves rejected
RR1R3B/B1r2nB1/2bn3N/1Bq1QB2/4NK2/2qp1nPq/1r1k2Pb/1r2n3 b - - 0 1 legal: proof: f4 b5 d4 c5 a4 cxd4 axb5 e5 Bd2 exf4 Bc1 g5 Bd2 g4 Bc1 g3 hxg3 Qg5 Ra4 Qf6 Ra1 Qd8 Kf2 Ke7 Kf3 Ke6 b4 Kd5 e3 a5 c3 f5 b6 h5 b7 a4 b5 a3 b6 h4 Rh3 a2 Qe1 d3 e4+ Kc4 e5 d5 e6 d4 e7 Qd6 e8R Nc6 b8B Na7 b7 Rh7 Qf2 Nh6 Re4 Nb5 Rh2 h3 Bc7 Bd7 b8B Nf7 Be3 Qc5 Qe2 Bc6 Qb2 Nbd6 Rh1 h2 Ne2 d2 Qa3 Kd3 Bd8 d1N Bf6 Nb2 Bc7 Rb8 c4+ Kc2 Qa7 Nd3 Bg7 Rb2 Qa5 Kd1 Rg1 h1Q Nbc3+ Kc2 Bd8 Qh3 Bdf6 Be7 Rb1 a1Q Bh8 Bd8 Bfg7 Bb6 Bf2 Kd2 Rh1 Ba4 Re8 Qaa3 Ra8 Bc6+ Nd5+ Qc3 Rd8 Ba4 Nf6 Bb5 Ng4 Ba7 Bg1 Ne1+ Kf2 f3 Nh6 f4 Qa1 Qd5 c5 Bd7 c6 Qdc5 c7 Bc6 c8B Bb6 Nc1 Ba7 Bb5 d3+ Kf1 Bb6 Na2 Ba7 B1d4 Bb6 Kg1 Ba7 Rh2 Bb6 Bf5 f2+ Kh1 f1N Kg1 f3 Kf2 Ba7 Rh1 Nh2 Ra8 Kc2 Ke3 f2 Kf4 Nhf3 Rh2 f1R Be3 Q3a3 Nc3 Rh1 Ne4 Qac3 Qa2 Bb6 Qe6 Rf1 Qe5 Rg1 Ng5 Rf1 Bg1 Kd2 Ne4+ Kc2 Rba1 Q5c4 Re8 N7g5 Ng8 Qh5 Rh3 Rb1 Bh6 Rc7 Raa8 Ngf7 Reb8 Rf2 B6g7 Kd1 Rh1 Rfb2 Bd4 Qh7 Rh6 Bc5 Re6 Qh3 Nh6 Ke2 Nf6+ Kd2 Ree8 Qd5 Red8 Bb6 Bc5 Ba7 Bb4 Bg1 Bc5 Bh2 Ba7 Qdc5 Ne4+
3rk1q1/4b3/b3qRr1/N1R2nR1/n1p1NbBr/2B2Qn1/1B2Pr1P/1K1R1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 f5 Kd2 g5 Kc2 c5 b4 a5 d6 a4 d5 g3 b6 c4 b5 f3 b7 g2 b6 f2 Nd2 g4 Kb1 f4 Qe1 g3 Ngf3 g1Q Bh3 f1R Ne5 f3 Bg4 g2 Nc6 f2 Na5 a3 Ne4 Qf6 Bb2 Na6 b8B Nc5 b7 Be7 Bc7 Qh6 b8R Na4 Rb5 Qe6 Rc5 Ba6 Bd8 Nh6 d7+ Kf7 d6 Nf5 Bb6 Rh4 d8R Rc8 Rh8 Rd8 Rh6 Ke8 Rf6 a2+ Kc2 Rc8 Qc3 Rd8 Rd1 a1B Qa3 Nd4+ Kb1 Nf5 Bc3 Bb2 Qb3 Bc1 Bb2 Bf4 Qf3 Re1 Bc7 f1N Bb6 N1g3 Ba7 Qf2 Rf1 g1R Bc3 Qg2 Bb2 Ne3 Rg5 Nef5 Bad4 Qh3 Bdc3 Qg8 Kc2 Rg2 Rd5 Rd1 Rc5 Rd5 Kb1 Re5 Rfg6 Re6 Rh6 Rg6 d7+ Kf7 Rgh5 Rf2 Rg5 Rf8 d8R Re8 Rd6 Rd8 Rd2 Ke8 Rdd1 Nd4 Bh5 Qhe6 Bg4 Ndf5 Qd3 Rg7 Rf6 Rg6 Qf3
RbB1r2r/RB5q/8/KN1q2p1/P1r2nR1/B1Nn2Pk/1b5R/Rqrn1Q2 b - - 0 1 legal: proof: f4 a5 c4 g5 b4 d5 cxd5 axb4 h4 e5 h5 exf4 Ba3 Bf5 Bc1 Bg6 hxg6 Ke7 Rh6 Kd7 Rh1 Ke8 d4 Ke7 Kd2 Kf6 e4 h5 a4 b5 d6 c5 d5 c4 g3 b3 Kc3 f3 Kb4 b2 e5+ Kf5 e6 Kg4 g7 f5 e7 h4 e8R c3 Re3 f4 Re2 f2 Ra3 h3 Nd2 b1N Re1+ f3 Bd3 f1R Qb3 h2 Ne4 c2 Re2 f2 Nc3 Ne7 g8B Nd7 Be4 Ng6 Qc4 Nc5 d7 Bd6 Ra1 Nf4 Ba3 c1B Nf3 Kh3 Nd4 Bb8 d6 Bb2 Bb7 Rc1 Bgd5 f1Q Rg2 Qd3 Bc8 Qh7 Qf1 Qdg8 Bdb7 Qd5 Ne4 Nc3 d8R+ Nce6 d7 Nd1 Rg8 Nc5 Nc3 Rc2 Rg7 Re8 Ba6 Ncd3+ Ka5 b4+ Ndb5 b3 Bb7 Rc1 d8R Ra7 Bc8+ Rd7 Bcb7 Rc7 Re7 Rc4 Re4 Bd6 Ra8 Bb8 Bc8+ Ne6 Rg4 Nef4 Rhg1 h1R Bab7 Rh2 Rb1 Ba1 Rbb2 Rh1 Rbe2 b2 Re6 b1Q Rea6 Bb2 R6a7 Qdd7 Qf3 Qd4 Re1 Qd5 Qf1 Rh2 Ree2 Ba1 Ra2 Bb2 Ra1 Qh6 Qe1 Rh1 Rg1 Kh2 Rf1 Kg2 Rf3 Rh4 Rf2+ Kh3 Rg2 Qg7 Qe2 Rhh8 Qf1 Qh7 Rh2+
4b2b/k7/r1RRb2N/NP1r2q1/P2B4/nq1B1r2/Rp1b1RR1/n1NqQ1K1 b - - 0 1 illegal: No proof kernel
3n3B/1B1q1NKN/n2BkP2/P3n1B1/nb3bq1/1Q1qpr1B/2N4r/1R3bR1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 b5 Kh5 c5 f4 e4 g4 b3 a4 h3 d4 h2 d6 c4 d5 b4 g5 c3 a5 b2 g6 c2 f6 b3 g7 Ba6 f7 Ne7 Kh6 Nec6 Nc3 b1Q f5 b2 Bd2 c1B Nh3 Qd3 Nb5 b1N Bf4 Nc3 Rb1 Na4 Bg5 Bf4 Na3 e3 Rg1 h1N Qb3 Nf2 Nc2 Qe8 Bg2 Nd8 Bh1 Be7 g8B Ng4+ Kg7 h5 f8B h4 Bf6 Ne5 Ng5 h3 Nh7 h2 Bg5 Kc8 Be6+ Qd7 Be4 h1Q f6 Qf3 Bh3 Qfd1 Bf3 Qg4 d7+ Kc7 Bh1 Kd6 B1g2 Bb5 Bf3 Na6 Bfg2 Ndf7 d8B Ra7 Bb6 Nd8 Bc5+ Kd7 Ba3 Bb4 d6 Rc7 Ba8 Rc4 Bb7 Ke6 d7 Bh2 Qb2 Rf4 Bd6 Rf3 Qb3+ Qd5 Bf8 Bf1 Bd6 Qd3 Bf8 Ndc6 Bd6 Bf4 d8N+ Kf5 Nf7 Nd8 Nf8 Rh4 Nh7 Ke6 Bf8 Bc3 Bad6 Bb4 Kg8 Rh6 Bg7 Rh5 Bh8 Rh4 Kg7 Rh6 Bg2 Rh2 Qb2 Qc6 Bh3 Qd7 Qb3+
1bK2b2/RN2Q3/2P4n/R3RB2/1n1Pbp2/bNB1R1q1/qr1nr3/1NrR1k2 b - - 0 1 illegal: No possible last move
k3R2K/1B4n1/r1p4R/BP2P2q/2q1rb1B/3nqN1Q/1NB1R2b/q1nb2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 e4 a4 g4 a3 b4 h3 d4 h2 g5 a2 b6 c6 b7 Kc7 b5 h4 g6 f3 g7 f2 Qg4 h3 Qf3 f4 Qg2 f3 Bc4 f1N Be2 f2 Be3 Nd2 Bd3 f1Q Nf3 Na6 b8R Nb4 Nc3 Nf6 g8B Nh5 Re1 a1B Na4 Bh6 Bg1 Qe8+ Be6 Ng7 Kf6 Bf4 Re2 Ra6 Bc2 Nb3 Nb2 Nc1 Qg3 Nbd3 d6+ Kd8 d5 Rh4 d7 Kc7 Ra8 Kb7 d8B Bd7 d6 Qh5 Bd5 Bg4 d7 Qf2 Bdb3 Qe3 Ba5 Qhc5 d8B Qc4 Kg6 Bh5+ Kh7 Rg4 Na4 Bae5 Bh4 Bd6 Rg8 Bb8 Re8 Ka8 Re6 Bbd6 Kh8 Bc7 Nb2 Bb8 Bf2 Bbe5 Rhe1 h1Q Rh6 h2 Qh3 Qf1 Bg1 h1Q Ba2 Bh2 Bab3 Bef4 Ba2 Qa4 Be6 Qc4 Rd1 Qe1 e5 Qec3 Bc8 Qa3 Bd2 Qa1 Bc3 Bfg3 Ba5 Re4 Rf1 Bf4 Rd1 Nf2 Rd8 Nfd3 Re8 Bg4 Ng5 Bh5 Re1 Bd1 Re2 Qg2 Nf3 Qg4 Bf6 Qf5 Bh4 Qh5 Bb7+
bq3NnR/N1Q3n1/1PP3Kb/r2N4/bp2N1R1/R1N2kr1/bB6/1q1B2qr b - - 0 1 illegal: No proof kernel
1BNR1bK1/2r2nbn/1p6/B3r1R1/4BQb1/1PnkB2q/Nn1P4/4rNqB b - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 Qc2 a3 Qb2 axb2 Ke2 Kf7 Kf3 Kf6 Ke4 e5 g4 c5 f4 h5 a4 c4 g5+ Ke7 f6+ Kd6 f7 Kc5 f5 c3 g6 c2 a5 h3 d6 h4 f6 h2 a6 h3 d7 Bg7 Kf5 Kd4 Ke6 e4 f8Q e3 Kf7 e2 a7 e1R Bg2 Rh4 Nf3+ Ke4 Rg1 h1Q Nh2+ Kd3 Nf1 h2 Bd5 Nc6 Rg5 Rc4 Nc3 b1N Bb2 c1B Na2 Qb6 d8B Qbg1 Ba5 b6 Bd4 Ba3 Be3 Bg4 Qd6 Rc5 Qf4 Re8 a8B Nc3 Rc1 Re5 Rc2 Bh6 g7 Nd8+ Kf8 Qf3 f7 Nf6 Bac6 Nh7+ Kg8 h1N f8B Bb2 Bd6 Nf2 Bb8 Qh3 Bh1 Nf7 Bcd5 Rc7 Rc1 Ne2 Rc6 Nd1 Rd6 Nec3 Rd8 Nd6 Kh8 Ba1 g8N Bf8 Ne7 Nf7+ Kg8 Nb2 Nc8 Re4 Na7 Nba4 Qh2 Nb5 Qg3 Bag7 Qh2 Re5 Nc8 Nbc3 Qf4 Nb2 Bde4+
Bnrrn1q1/2Rr1kbq/P3PB2/B4B2/1p4b1/3N4/1nBQ1RR1/bK2N2b b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 b5 Kd2 h5 Kc2 c5 g4 f5 e4 f3 a4 c4 a5 f4 d6 c3 d5 f2 e5 f3 a6 h4 g6 h3 g5 h2 d7+ Ke7 d6+ Ke6 g7 Rh3 g6 Qg5 d8B Qh6 d7 Nf6 Qd2 Ne8 Bg2 f1Q Ne2 f2 Ra2 Qg1 Ba5 f1R g8B+ Rf7 d8R Rd3 g7 Qh7 Na3 b3+ Kb1 b4 Nc2 b2 Rd7 Rd4 Rb7 Rd8 Rc7 Bd7 Be4 Qg4 Re1 h1B Rg1 Ke7 Ne1 Qg5 Rc6 Bg4 Bf5 Qgg6 Rg2 Qe6 Kc2 b1N Nf4 Qeg6 Nfd3 Na3+ Kb3 c2 Kb2 Qg5 Ka1 Nc4 Rc7+ Rd7 Rf2 Nb2 Rg2 Rf6 Bd5 Rd6 g8B Bg7 Bf3 Qgg6 Bb3 Qf7 Ba4 Qfg8 Rf2 Kf7 B3e4 Ra7 Ba8 Rb7 Rg2 Rbb6 Rf2 Rbc6 Qe2 Rc3 Rg2 Re7 Ra7 Nc4 Bg5 c1B Bf6 Bb2+ Kb1 Rd8 Qd1 Ba1 Raf2 Rc2 Qd2 Nb2 Bb3+ Rc4 Bc2 Rcc8 Rc7 Red7 e6+
4n1Kn/n2rb2P/2N3R1/NbkR3N/1qp2q1r/1rRP1Nb1/2BB2Nr/3Q4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kd6 b4 f5 h4 g5 b6 c5 b7 a5 h5 f3 Kg3 f2 d3 a4 h6 a3 b5 a2 b6 c4 e5+ Kc5 e6 f4+ Kg2 f3+ Kg3 Qd6+ Bf4 Nc6 b8N Na7 e7 Ba6 e8N Nf6 b7 Bb5 Nd2 Be7 Rc1 a1R Nc6 Rb1 b8N Rb3 Be2 f1R Nh3 f2 Ng7 Ne8 Rc3 Re1 Rg1 f1Q Bf3 Re2 Nh5 Rh2 Na5 Qb6 Nbc6 Rd8 d6 Rd7 Qc2 Qc1 Qd1 Qb8 Be2 Qa3 Rg2 Qb4 Nf3 Qc7 Bd2 Rh7 Kf2 g3+ Ke3 g4 Ke4 Rh8 Rg1 g2 Kf5 g3 Kg6 Qb8 Kf7 Qc7 Re1 g1N N3f4 Nh3 Ng2 Nf4 Rg1 Rh7+ Kg8 Ng6 Bf4 Nh8 Bd2 Rd8 d7 Qf4 Qb1 Rh4 Bd1 Rh2 Bc2 Rh4 Ne3 g2 Qd1 Rh2 Re1 g1B Ng2 Bd4 Re6 Bf2 Rf6 Bg3 Rg6 Rb8 d8R Rb7 Rdd6 Rd7 Rd4 Rf7 h7 Rf5 Nf6 Rfh5 Rd6 R5h3 Nh5 Rh4 Rd5+
4R2K/3R1rP1/4bQ2/1kNqB1q1/3rnq1b/1R1NRN1P/r1n2p1b/3Rb2B b - - 0 1 illegal: No proof kernel
1Kn2Bq1/2rr1P2/q4pn1/2r1R3/3bbbN1/N2r1QN1/2B1NR1P/2kB2qN b - - 0 1 illegal: No proof kernel
1R2KB1r/1q3Pr1/1nk2p2/QnNbb2r/nBq1BB2/5n2/2NRP3/5BqN b - - 0 1 illegal: No proof kernel
R7/1Br2pn1/b1N1q2R/b2R1nP1/1kqRr1bn/1nN1Br1P/Q1KRN3/8 b - - 0 1 illegal: No proof kernel
3nq1r1/1q1nPN1r/3B2BQ/1rnRb1p1/b3BP2/2bRR2R/1Nbk2K1/1R6 b - - 0 1 illegal: No possible last move, all moves rejected
3B1qnN/1Rn1pbr1/1NK5/RB1rP1kN/r2Q1rnN/5P2/b2R2qq/6N1 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Rh3 Bh6 Rh1 fxg4 Bf4 g3 Be3 g4 Bc1 Bg5 hxg5 Kf8 Rh6 Kf7 Rh1 Ke8 Kd2 Kf7 Kd3 Kg6 Ke4 d5+ Ke5 a5 e4 h5 c4 d3 b4 g2 c5 a4 c6 a3 b6 g3 b5 d4 b7 a2 b6 d2 c7 d3 Rh2 Be6 c8N h4 Nd6 h3 Nf7 Na6 b8R Rh4 b7 Rf4 Qa4 d1N Be3 d2 Qd4 Bd5 Bb5 Nc7 Nh8+ Kh5 g6 Kg5 g7 Bf7 f3 Ra6 Nc3 Rd6 Na4 Nf2 Nb6 d1B Bd2 Bdb3 Ba5 Nh6 g8N Qf8 Nf6 Ng8 Nh5 Rd7 Rb1 a1R Ra8 Ra4 b8N Ba2 Nc6 Rd6 Rb2 Rd7 Rd2 Rd6 Rh1 h2 Ra7 Rd7 Rb7 Rd8 Qc4 Rd7 Nd4 Rd6 Nf5 Rd8 Ne2 g1Q Nh4 Qg2 Ra1 h1Q Ng1 Qhh2 Qd5 Re8 Qc4 Ng4+ Kd4 Rb8 Kc5 Rd8 e5 Rd5+ Kc6 Qgh1 Qc5 g2 Ne2 g1R Qd4 Rg3 Ng1 Q1g2 Nc4 Na8 Bd8 Nc7 Nb6 Rb4 Na8 N4f6 Rad1 Bc4 Nh3+ Kh6 Rh1 Rg7 Rb1 Ng4 Ng1 Kg5 Ra1 Bb3 Raa7 Ra4 Nb6 Ba2 Ra5
4Kb1B/q2p3R/R1B1B1n1/1P6/Qb2r1bP/RNkn2q1/4Bn1N/1r2n1qB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 e4+ d3 b4 a5 h4 g5 e6 a4 c3 g3 e5 g4 e7 g2 e8B a3 b6 g3 b5 a2 b7 Nc6 b8R Qc7 e6 Bb7 e7 Nb4 Qa4 Bf3 Bb2 Qa7 Rb6 Bg4+ Ke5 f5 Kd6 f4 Bh5 f3 Be2 f2 Ra6 f1N Nf3 g1B Nh2 g2 Bf3 d2 Bc6 d1N Nd2+ Kd3 c4 Nf2 c5 Ne3 Nb3 Nec2 Bf6 Rh7 Bh8 Ne1 Bf7 Rh5 Bfd5 Re5 Be6 Bh6 e8B Kc3 Bg6 Ne7 Bd3 Ng6 Bf1 Nbd3 Be2 Ngf4 Ke7 Ng6+ Kf6 Rg8 Kf7 Bf8 Ke8 Qc7 Ba8 Rg7 c6 Re4 Bb7 Qg3 c7 Bb4 c8B Bf8 Bc6 Bb4 Rd1 a1Q B8b7 Qa3 Ra1 Bf8 Kd8 Qc5 Ke8 Qa7 Nf1 Bh2 Ra3 g1Q Ba8 Q3g2 Bab7 Bhd6 Nh2 Bb4 Ba8 Q1f1 Rg1 Qh3 Rg3 Qg1 Rf3 Qhg3 Rf7 Re5 Re7 Rf7 Bh1 Rf3 Rg7 Re4 Bb7 Rfe3 Bf1 Re2 Bc6 Rb2 Be2 Rb1 Rh7+
2bkr1R1/3pP2q/7Q/2RPq2B/N1qnn2K/2b1RRrB/2Nr4/1R2Nbq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ba3 Qb6 axb5 Qf6 b6 Qg5 b5 Qd8 Bb4 cxb4 Kf2 g5 c4 a5 e4 f5 h4 g4 d4 a4 h6 b3 c5 f3 Kg3 a3 d5 b2 c6 f2 b7 a2 h7 Ra5 e5 Qg5 e6 Ra7 h5 Ra6 c7 Qf6 b6 Qe5+ Kh4 g3 h6 f4 Na3 b1Q Rh3 f3 Qc1 g2 Nc2 Qb5 Rb1 Nc6 b8R a1Q b7 Nf6 Be2 Rg8 h8R f1B h7 f2 Nf3 g1Q Nfe1 Rg6 Rg8 Ke7 h8R Ke8 Re3 Qb3 Bh5 Ra2 Rf3 Rb2 Qh6 Ne4 Ra8 Qaa4 b8N Qac4 Ra3 Nd4 Na6 Qbd3 Nc5 Ke7 Rc3 Rg3 Na4 Bg7 Re3 Rb8 Rf8 Ra8 Rhg8 Rb8 Rff3 Rb2 Nb4 Rd2 Rcc1 Nc5 Rc2 Qh7 Rcc3 Ne4 Nbc2 Ba6 c8B Bf6+ Rg5 Kd8 Bb7 Bg7 Bc6 Bc8 Bb5 Bd3 Ba6 f1R Rg6 Rff2 Bb5 Bf1 Ba6 Qa2 Rc5 Rfg2 Be2 Qc4 Bg4 Bh8 Bh3 Rh2 Rf7 Rf2 Bh5 Rf6 Rg5 Rg6 Rf4 Rg8 Rff3 Re8 Rg8 Bg7 Ra5 Bf8 Rab5 Bb4 Rc5 Bc3 e7+
q4B1q/2PRb1N1/nRb4R/rp1Qb1rR/PrRn3K/8/q3N3/1B2Bkq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 Kf7 a4 Kf6 c4 Ke5 f4+ Ke4 Kf2 b5 Kg3 g5 h6 e5 c5 d5 f6 b3 f7 d3 h5 b2 c6 d4 f5 d2 f6 Ke3 h7 d3 c7 e4 h6 g4 Ra3 Bd7 Nc3 b1Q Rh4 Bc6 Rh3 Qa2 Rb3 Na6 Rh1 Be7 Kh4 Kf2 f8B e3 Nd5 e2 Rc3 e1B Nf4 g3 Ne6 g2 Ne2 g1R Rc4 Rg5 f7 Qe8 Qb3 d1Q Bd2 Qda1 Ng7 Qb8 Bb4 d2 Bh3 d1Q Bf5 Qdd8 Bb1 Bc3 Rd1 Be5 Be1+ Kf1 Rd7 Qa7 Qd1 Qg1 Qd3 Ra7 Qd5 Qa8 Rc5 Nf6 Rc4 Rg8 h8R Ne4 h7 Nec5 Bc2 Ne6 Bb1 B7f6 Bd6 Nd4 f8R Q1b2 Rb8 Be7 Rb6 Rf8 Bc5 Rf3 Ba3 Rb3 Bd6 Rb4 Bc5 B7f6 Bf8 Bd8 Rg8 Be7 h8R Qc2 Rh6 Qh7 Rh5 Qh8 Rh6 Nc5 Rh5 Ra5 Rh6 Na6 Rh5 Qh7 Rh8 Qg8 R8h7 Qh8 R7h6
1BK4N/bBP1R1NR/1P1q1qqN/1nr2pQ1/3rR1r1/1b2R2n/1R2n3/k2r4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 b4 a5 c4 f6 h4 d3 h6 g4 h5 d2 h7 a4 h6 f3 b6 f2 c5 a3 c6 a2 b7 g3 b5 g2 Rh4 Na6 b8R Ne7 Nf3 g1Q Nc3 Nd5 Ne5 Bc5 Nf7 Nac7 Bg2 f1N Na4 Rg8 h8N Ba7 h7 Nf4 Nh6 Rg4 Nc5+ Kd6 Kf5 Nh3 b6 Nb5 Rb1 a1Q e4 Bb7 Qa4 d1R Qa5 Rd4 Ne6 Bc8 Ng7 Kc5 e5 Kc4 e6 d5 Rb4+ Kc3 Rb7 Qd6 Bf4 Bd7 Bh2 Rc8 Be5 Be8 e7 Bf7 e8R Kc2 Rb2+ Kc1 Re2 Kb1 Rbe7 Qb2 Qd2 Ka1 Qg5 Qc3 Bh2 Bg8 Rb2 Ng3+ Kg6 Ne2 Kf5 Bf7 Re3 Bg8 R8e7 Be6+ Kg6 f5 Kf6 Rd2+ Be5 d4 Bh2 d3+ Be5 Rd4 Rhe4 Rg8 Bh2 Rc2 Bf4 d2 Bf3 Qd5 Bb8 d1R c7 Qd8 Bg2 Bb3 Bh1 Qd3 Ke5 Rcc4 Ke6 Qg4 Re5 Qg3 Bb7 Qf8 R5e4 Rc5+ Bd5 Qf6+ Kd7 Nd6 Bb7 Qg4 Ne8 Nb5+ Kc8 Rg6 Ng7 Qg3 Qh5 Rg4 Qg5 Qg1 N8f7 Qg3 h8R Qgd6 Rh7 Qc4 Rd7 Qce6 Nh8 Qef7 Rde7 Qg8+ Ne8 Qgg6 Ng7
2rBBb1q/2p1R2r/2PR3r/k1N1Q1Nn/3B2n1/P2b4/1b4N1/bBqnB1K1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 f5 exf5 e5 dxe5 axb4 f4 d5 Kf2 Kd7 h4 Kc6 c4 Kb6 e6 g5 a3 d4 f6 b3 f7 d3 e7 d2 e8B b2 f5 Ka5 f6 b5 h5 b4 c5 b3 h6 Nd7 c6 Rh7 Nc3 b1R Bd3 b2 Ne4 Ne5 Qe1 Ba6 Nh3 g3+ Kg1 g2 Nf4 g4 Nc5 Rc8 Rh3 Qd4+ Re3 Bb5 Qe2 d1N Bd2+ Qc3 Bg6 Bd3 Be1 Rc1 Ra2 b1Q Rd2 Qca1 Re4 Rc4 Qe3 Qc1 Qg3 Rd4 Ree2 Rd6 Be4 Bg7 f8B Bh8 f7 Nf6 Be7 Nh5 f8N Bf6 Kh2 g1B+ Kg2 Qab2 N8e6 Bd4 Ng5 Bh8 Qe3 g3 Bd8 Ng4 Kg1 g2 B4g6 Bc3 Qe5 Bg7 Be4 Bf8 Bf5 Qba1 Be4 Bb2 B4g6 Rg7 h7 Rf6 h8B Rh7 Bgf7 Rfh6 Ba2 Qc3 Re4 Qac1 Bb1 Ba1 Qf5 Qg7 Re7 Qg8 Bb2 Qh8 Qe5 Ngf6 Kh2 g1B+ Kg2 Ng4 Bd4 Bf2 Kh1 Bg3 Ng2 Bf4 Kg1 Bb2 Re2+ Bd2 Rf2 Bdc3 Rf6 Ba1 Rd6 Bb2 Bef2 Ba1 Bg3 Bcb2 Be1+
1rb1QbN1/Pr6/3k2r1/PqBBN3/1p2q3/3n1qRB/1N4NR/1Nbb1n1K b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 h5 Kg2 f5 d4 b5 e4 c5 a4 b4 e5 c4 d6 c3 d5 c2 g5 Qb6 a6 Nh6 a7 Qb5 g6 Nc6 g7 Rb8 g8N Rb7 a5 Ng4 Ne2 Nh2 Be3 c1B Qa4 f3+ Kg1 h3 Ra3 h4 Bc5 f4 Nec3 Rh6 Nd1 Rg6+ Bg2 Nf1 Rh2 f2+ Kh1 f3 Nb2 Ne3 Rd3 f1B Rb3 f2 e6+ Kd8 e7+ Kd7 Bf3 Ne5 Ra3 Nd3 e8B+ Kd8 d7 Kc7 d8N Be2 Bc6 Bd1 Nf7 Nf1 Bd7 Rb8 Ne5 Rb7 Rg2 h2 Bh3 Rb8 Ng4 Kd7 d6 Ke6 d7 Rb7 Bd4 Kd6 d8N Rb8 Nc6 Rb7 Rg3 Rb8 Kg2 h1R Nce5 Rb7 Ne3 Rb8 Ra2 Rb7 Bhg4 Rb8 Be2 h3+ Kf3 h2 Kg2 Qd7 Bef3 Nd2 Bd5 Qc6 Be6 Qc5 Qe8 Qb5 Na4 Re1 Bh3 Rf1 Rg4 h1Q+ Kg3 Qe4 Kh2 Rg7 Rc2 Rg1 Nb2 f1Q Rg2 Rgb7 Bc5+ Kc7 Rg6 Qff3 Rg4 Rg2+ Kh1 Nf1 Rg6 Rg4+ Rg2 Rf4 Rg3 Rf6 Kg1 Rg6 Rh2 Qec4 Ng2 Qce4 Bb6+ Kd6 Kh1 Ba4 Be3 Bd1 Bc5+
N1n1Rn1q/P1R4P/Bqp3n1/1bB3N1/2r4Q/K2Bk3/RRq5/2Rqbr1r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Ke7 d4 Kd6 Kd2 g5 Kc2 b5 Kb3 f5 e4 f3 a4 g4 h6 f2 h5 f4 e5+ Kd7 a5 f3 h7 c6 h6 g3 a6 g2 a7 Ne7 e6+ Kd6 Ba3 Ba6 Nd2 Nc8 e7 Nd7 e8B Rb8 Nh3 g1N Ra2 Ne2 Bg6 Nf4 Bgd3 Ng6 Qe1 Qh4 Bfe2 f1R Ng5 f2 Rh2 Bg7 Rh1 Ndf8 Nc4+ Ke7 d6+ Kf6 Kb2 b3 d7 b4 d8R Bb5 d5 Qh5 Nb6 Ke5 d6 Kd4 d7 Ke3+ Qc3 Be5 Na8 Bg3 Qc4 Rb6 Qg4 Qh3 Qh4 Ra6 Be4 Ra4 Re8 Qh2 d8R Qh3 Rd1 Qh2 Kb1 b2 Rc1 Qh3 Kc2 b3+ Kc3 b1Q Be7 b2 Kb3 Rb4+ Ka3 Rc4 Rh2 Qc2 B4d3 b1Q Rb2 Ba4 Ra2 Qb6 Rb2 Bb5 Ra2 Rg8 h8R Rh1 Rg2 f1Q Rh7 Qfd1 Rg7 Be1 h7 Qf5 Rf7 Qf6 Bf1 Qh8 Rg7 Qb1 Rgb2 Qbc2 Bb4+ Ne6 Rc7 Rf8 Bd6 Rf2 Be7 Nef8 Bh3 Nd6 Bc8 Rff1 Ba6 Nc8 Bc5+
3b3R/4NB2/4PRKn/nr2qnNn/p3B1kb/nNn5/1rN3PB/1b3Q1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 c5 Kh5 Kf5 b4 a5 d4 f3 d5 f2 d6 a4 g6 c3 e3 c4 g7 c2 b6 c3 b5 Ra5 d7 Nc6 b7 Nh6 g8B Qe7 b8N Qe5 d8N Be7 b6 Rb5 b7 Na5 Bc4 f1N Nf3 Bh4 Nbc6 Nd2 Ba2 Ndc4 b8N Na3 Bb2 c1N Nfd2 c2 Nb3 Ne2 Qe1 c1B Nd7 Nc3 Ne6 f6 Ndc5 Bd7 Bf7 Rhb8 Na7 Bc6 Ng5 Be4 Nc8 R8b6 N1d2 Bb1 e4+ Kf4 Nf3 f5 Qd1 Kg3 Ne7 f4 Nfd4 f3 Qe1+ f2 Nd3 Be3 Qd1 f1N Nc2 Bf4 Bg6 Ne3 Qf1 Nef5 Nf2 Rb7 Bf7 Be3 Bc1 Bb6 Be3 Bd8 Bb6 Qh8 e5 Qg7 e6 Qe5 Bc7 Rb8 Nd2 Rb2 Nb3 Rb5 Bb8 Ng8 Ba7 Nd4 Nb4 Bf5 Re1 Bb1 Nc2 h6 Kg6 h5 Nfe4+ Kg4 Nbc5 Bf2 Re2 h4 Ng3 h3 Bd5 Be1 Nb3 Bf2 Be4 Be1 Qg1 h2 Re3 Bf2 Rf3 Be1 Rf6 Nf5 Be3 Bf2 Qc1 Be1 Bf4 Bf2 Rg1 h1N Qf1 Be1 Nh5 Nhg3 Rh1 Ng7 Rh2 N3f5 Ng3 Bf2 Rh6 Nh5 Nh1 Bh4 Rh8 Ngh6 Bh2
4Q3/r1nbb1N1/Bb1b2NK/1PbN4/3pR2B/N4NqR/1k2bR1P/4rnq1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 c4 Kf6 f4 e5 b4 g5 c5 d5 c6 a5 b6 e4 c7 e3+ Kd3 e2 b5 e1B b7 a4 Qe2 g3 Bg2 a3 Nf3 a2 Nfd2 g4 Qf1 Ra7 Qf2 Qd6 Nf3 Na6 b8R Ba5 Re1 Be7 Qe3 Bd7 c8N Bb6 Na3 Nh6 Bh1 Bc5 Nb6 g2 Ra8 Rh7 Rh8 g1B Rf1 g3 Rf2 g2 Rb1 a1B Rb4 Bd8 Qe8 Re7 Ra4 Ng4 Rh3 Nc7 Kd2 d3 Re4 Qe5 Bb2 Bd6 Bc1 Nh6 Ke3 d2 Bb2 d1B Bc3 Be2 Be1 Kg7 f6+ Kh7 f7 Kg7 f8N Kf6 f5 Ng4+ Kd2 Bd4 Ne6 Qg3 Ng7 Ne3 Qh8 Kf7 f6 B4c5 Qg8+ Kg6 f7 Kf6 f8N Re5 Ng6 B8e7 Qe8 Nf1+ Kc2 Bd1+ Kd3 Re6 Rc2 Bgd4 Rf2 g1Q Nbc4 Bb6 Ne3 B4c5 Rd2 Qg5 Bh4 d4 Rf2 Re5 Nh5+ Ke6 Nd5 Q5g3 Qd8 Bf8 Qe8+ Bde7 Ng7+ Kd6 Rf4 Re1 Rg4 Be2+ Ke4 Bb4 Rf4 Kc5 Ke5 Bd6+ Kf6 Bfe7+ Kf7 Rb7 Re4 Ra7 Nc2 Kc4 Na3+ Kb3 Kg8 B4c5 Kh7 Ra4 Kh6 Kb2 Nfe5 Kc1 Ref4 Rb4 Nf6 Kb2 Bb7 Rb1 Nd5 Re1 Re4 Ra4 Nf3 Ra7 Ba6
2rnb1B1/2QBqN2/K1P1n1r1/1N2B1B1/1PR5/bN1rp2r/1R3rnB/4nk2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 f4 a5 f6 d5+ Kc5 h5 c4 h3 b6 e5+ Kb5 h2 b3 d3 g5 h4 f5 d4 g6 h3 g7 d2 b7 Ke3 f7 Kf2 c5 e4 f6 d3 c6 a4 Nc3 a3 Bg2 a2 Ba3 Nh6 g8B Nd7 b8B Nc5 Nd5 Ne6 Bbd6 Qe7 Bc1 Bd7 Nf3 Be8 Ne5 Rc8 Rb1 a1N Ka6 Nc2 Nc7 Ne1 Nb5 Rh7 Qc2 Rg7 Rb2 Rg6 Rf1+ Ke2 Rf4 h1R Qc4 h2 Bh3 Rf1 b4 h1R Qd5 Bg7 f8B Rf2 f7 Bh8 Bg4+ Kf1 Bg7 d1R f8N d2 Nfd7 Nf7 Nc5 Rh3 Nb3 Nfd8 Bf6 Bg7 Nf7 Bh8 Bg5 Bd4 Qe5 Bc3 Ra2 Bb2 Qg7 Ba3 Bb2 Rc1 Bbf6 d1N Bfe5 Rcc3 Rb2 Rcd3 Bb8 Ne3 Bbc7 Nf8 Bd7 N3g2 Rh4 e3 Rc4 Nfe6 Bh2 Rh5 Bcg3 Rh7 Qe5 Rhh6 Qc7 Rh3 Be5
1qqNq1B1/q2B2rB/kP1nRr2/5N1q/p1P1n3/KNq2B2/2bR1bQ1/4B3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 b4 Kd7 g4 Kc7 e4 Kb7 c4 h5 Kc2 a5 Kb3 f5 b6 d3 b5 a4+ Ka2 d2 e5 d4 e6 h4 e7 d3 e8B h3 g6 f3 g5 f2 g7 h2 g6 f4 Kb2 f3 Bh3 f1Q Ne2 f2 Nec3 Bf5 Nd5 Nc6 Qf3 d1Q Bg2 d2 Rg1 h1Q Nb4 Rh7 Ra3 Ra6 Nd5 Qd3 Ne7 f1Q Bd7 Qfe2 Re1 Qh2 Ra2 Nf6 g8B Ne4 g7 Nd4 Qf2 Qe5 Bf3 Qc8 Qg2 Bg6 Nf5 Qeb8 Ne3 Qf2 Nf5 Bc5 Re3 Qdg1 Re1 d1Q+ Nd2 Qfe3 Nb3 Qee2+ Bd2 Qee3 Bb4 Qc3+ Ka3 Qgf2 Ree2 Qh1 Rad2 Qh5 Bge6 Qe1 g8B Rg7 Bh7 Q3f2 Beg8 Qfg1 Ne7 Nf5 Re3 Nd6 Nf5 Bd4 Ree2 Bf2 Re3 Ka8 b7+ Ka7 Ba5 Rc6 b6+ Ka6 Ree2 Qa7 Bb4 Qgh2 Ba5 Nf7 Bb4 Rf6 Re3 Nfd6 b8N+ Kb7 Nc6 Ka6 Nd8 Qhe5 Rc2 Qe8 Ra2 Qd1 Rc2 Qd5 Rd2 Qda8 Ba5 Qa8b8 Ree2 Nc5 Re6 Nce4 Ne7 Ng3 Bb4 Bc2 Nf5 Nge4 Bc5 Bh4 Bf2 Bg3 Be1 Bh4 Re5 Bf2 Re6
1r1bb2q/1rB1B3/p1P4R/1BB2bNb/2qN1b2/k4b1B/2nP2N1/1QKn2R1 b - - 0 1 illegal: No possible last move, all moves rejected
Q2NN1bR/NrRN2pb/k5B1/r3r1B1/P2Rq2b/1nb1rP1n/b2N3K/8 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 Kd7 a4 b5 h4 e5 d6 Kc6 f6 Kb7 d7 c5 f3 b3 Kf2 e4 Kg3 e3 h5 c4 h6 c3 d5 e2 d6 e1R f7 b4 h7 c2 Rh4 b2 Kg2 g3 Nh3 b3 Rd4 Qe8 d8R Nf6 d7 Nh5 Ng1 Nf4+ Kh1 g2+ Kh2 Ra5 Rd3 Nc6 Rd5 Re3 Kg3 Be7 f8N Nd4 Nd2 b1B Bd3 b2 Bg6 Bh4+ Kh2 Nb3 Rd4 Ba2 Ne2 g1R Nc3 b1B Nb5 Qe4 Na7 Rgg5 Qe1 Rg8 h8N Nh3 Nf7 Rge5 Nd6+ Ka6 Ne8 Bb7 Rc8 Bd5 d8N Rh8 Ra8 Bg8 Nd7 Rhh5 Rc8 Rab5 Rc7 Rb7 Qg3 Ra5 Qe5 Rf5 Qd5 Re5 Ba3 c1B Be7 Bd3 Bg5 Bb2 Rh1 Bc3 Qc6+ Rb6 Qa8 Rb7 Re1 Bdc4 Rg1 Bh7 Rg4 Be6 Rf4 Bc4 Rf8 Bf7 Rh8 Bd5 Nef6 Bdg8 Ne8
2N5/rN1b1P2/Bq1PR2B/2p1bKB1/3NN3/bR1b2b1/n3Nn1k/rr2r2Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 h5 b4 e5+ Ke3 a5 g4 a4 f4 a3 d4 h3 f5 h4 f6 h2 g5 a2 g6 h3 f7 Nh6 b6 Ra7 b5 Na6 b7 Nb4 b8B Bd7 g7 Rh7 g8N Ng4+ Kd2 Be7 b6 Nf2 b7 e3+ Kc3 e4 Ne2 Rg7 Nd2 Rg1 Rb1 a1B+ Rb2 Bf8 Ne7 Na2+ Kc2 Be6 Rb3 Bd7 Qe1 Bb2 Qd1 Bg7 Qe1 Be5 Qd1 Ba3 Qe1 Ra6 Ba7 c6 b8N c5 Bb6 Ra7 Nbc6 Qb8 Bd8 Qb6 Qd1 Rg4 Rg1 h1B Rg3 Rf4 Rg6+ Rf6 Qe1 h2 Rh6 Bf3 Rg6 h1R Qd1 Bf5 Qe1 B3g4 Nc8+ Kd7 d6 Ke6 d7 Rg1 Ng3 e2 Rh6 e3+ Nde4 Rg6 Bg5 Bh3 Qd1 e1B Ba6 e2 d8N+ Kd5 Bcd2 Bd7 Qb1 Bf1 Nb7 Rg8 Qc1 Rh8 Re6 Rhh1 Qd1 Bg7 Be7 Nh3 Ned6 Be5 Kd3 Bf2 Bh6 Be1 Ngf5 B1g3 Beg5 Nf2+ Ke3 Bg2 Qf1 Be4 Qh3 Ra1 Qh5 Rhb1 Qh1 Bh4 Ng3 e1R+ Ne2 Bhg3 Nb5 Kc4 d5 Bg6 d6 Bd3 Kf3 Kd5 Ncd4 Bgf4 Qh3 Bg3 Qh5 Nh3 Kg4 Ke4 Nf4 Ke3 Nc3 Kf2 Nfe2 Kg2 Ne4 Nf2+ Kf5 Bgf4 Qf3+ Kh2 Na5 Bg3 Nb7 Nh3 Qf1 Nf2 Qh1+
k2Rr1B1/rqNb1R2/R1NBb1nR/2K2n2/4Qb2/r2P2nN/3rPp2/2R2n2 b - - 0 1 illegal: No possible last move
Q1R1N1B1/1KNr3n/1n1Rb3/3Pp2B/1b2b1rB/qr4R1/R1bP4/2Rnk1n1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 b4 e5+ Kc4 c5 g4 e3 g5 a4 f5 e2 f6 e1N g6 a3 f7 a2 b6 h3 Kb5 c4 b7 c3 g7 h4 Be2 h2 Na3 c2 Bb2 c1N Bf1 h3 Ne2 Ned3 Ng1 Nf6 g8B Ne2 Bd4 Nbd7 b8R Nb6 Bf2 Be6 Qa4 Rh7 Nf3 Ng1 Ng5 Nb2 Bh4 Qe7 Be2 Nd1 Rc8 Rb8 Ka6 Rg7 b5 Nh7 Rac1 a1R Bh5 Rb7 R1c2 Rb1 Ra2 Rd7 Rc1 Rb3 Nc4+ Kc5 Nd6+ Nc4 b6 Kd4 b7 Kd3 b8R Nb6 Ne8 Qa3 Rc6 Bb4 f8R Rg6 Rf3+ Ke2 Rg3+ Ke1 Rd6 Rgg7 Nf7 Rg4 Nc7 Rg7 Rf8 Kf2 Bg6 Nf3 Bf5 Nc3 Rb1 h1B Kb7 h2 Qa8 Rg4 Nh6 Ng1 Rc1 Be4 Rc8 Bc2 Bg6 h1B Bh5 Nd1 Nf5 Bhe4 Ng7 Ke1 Ne8
6n1/N1BrBN2/4n1rP/2N2Bn1/br1nP2q/k5b1/3QrRRp/N1KN3b b - - 0 1 illegal: No proof kernel
4KNb1/2N3Pr/BBp5/n3n3/RBk1qR2/n1b2B1r/3bPrn1/1BrQ2N1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kh5 b5 g4 f5 d4 f4 a4 b3 g6 b2 g5 c3 g7 b4 e6 c2 e7 f3 e8N f2 g6 b3 a5 Bb4 a6 Be6 a7 Nh6 g8B Qe7 g7 Nf7 Qd2 Kc4 d5 Bc3 d6 Ne5 d7 Nbc6 d8B Na5 Qd1 c6 Bg2 f1N Bf3 Ne3 Nc7 Ng2 Bd2 c1B Ra4+ Qb4 Kg5 h5 Kf6 h4 Bh7 Bg8 Ne6 h3 Nf8 h2 Bb6 Rc8 Bg6 Rh7 a8B Rc7 Be1 B1d2 Bb7 Rf7+ Ke6 Kb5 Bc2 Qe4 Bc8 Rf6+ Ke7 Rh3 Ke8 Rf5 Bh5 Rf2 Bf3 Rh7 Bd8 Kc5 Na3 b1N Ba6 b2 Nb5 Na3 Nc7 b1R Bcd3 Rc1 Bb1 Rh6 Nh3 Rh7 Rf1 h1R Ng1 Bh6 Bd2 Rh3 Be1 Ba1 Bc3 Bd2 Bb4+ Kd4 Nb5+ Kd5 Bb6 Kc4 Nc7+ Nb5 Nfe6 Bac3 Bh5 Rf4 Nf8 Rf7 Rf4 Rf5 Rh4 Rf1 Rf4 Rf2 Bb7 Na3 Bf3 Ne3 Bc8 Ng2 Ba6+
4b2B/R1NbPB1r/3K1nB1/R1R5/3N3b/Q1rPRbrR/1qpnn2k/n7 b - - 0 1 illegal: No possible last move
1n1q3Q/KB1rqB2/bR3R1n/1r1B1pr1/2b2P2/1R3P2/1b1Nr3/B2BkbN1 b - - 0 1 legal: proof: d4 a5 h4 c5 b4 g5 hxg5 axb4 e3 Qc7 f3 Qf4 exf4 cxd4 Kf2 h5 g4 d5 c4 Kd7 a4 Kc6 g6 Kc5 g7 e5 a5 f5 a6 b5 g5 d3 Ke3 h4 a7 e4 g6 h3 Ra3 d2 Ra5 d4+ Ke2 e3 Kd3 e2 Qa4 d1R+ Bd2 e1Q Be2 b3 Na3 h2 Ra6 b4 Nb5 b2 Qa1 b1R Nc3 b3 Rc6+ Kb4 c5 b2 Rf6 Rh5 c6 Rg5 c7 Nh6 g8B Bg7 Bf7 Be6 c8B Bc4+ Kc2 Qh4 Bb7 Re1 Bd1 Re2 Bbd5 Bh8 g7 Ba6 Nh3 Bc4 Rg1 h1B g8R Bg2 Rgg6 Bf1 Bb7 Re3 Bc1 d3+ Kd2 Re7 Ne4 Rd7 Ke3 d2 Bbd5 Ba6 Kd4 Bfc4 Rf1 Qe1 Ng1 Qe2 Ba4 d1Q+ Nd2 Qe7 Rf2 Qd8 Re2 Qe1 Bd1 Bg7 Re6 Qe2 Rd6 Qee7 Bb7 Bf1 Kd5 Kc3 Kc5 Qe1 Rb6 Qee7+ Rfd6 Bac4 Rf6 Bh8 Bbd5 Kd3 Rb5 Ke3 Rb3+ Kf2 Bb7 Ke1 Bbd5 Na6+ Kc6 Rb8 a8B Rb5 Bb7 Bg7 Qa3 Ra1 Qa5 b1B Bb2 Ra2 Ba1 Bbd3 Qc7 Rb2 Qb8 Rc2 Nb1 Re2 Nd2 Qa5 Qh8 Qad8 Rg6 Bb2 Rge6 Rb4 Rf6 Nb8+ Kc5 Qe5 Rb6 Ba6 Nb1 Bdc4 Nd2 Qee8 Rb5 Qde7+ Kb6 Qc8 Ka7 Qcd8 Rbb6 Rb5 Rbe6 Rg8 Rd6 Rg5 Rb6
b1B2bb1/1RQ1r2r/n1K4n/3P1N1N/nB4nB/B2q2Bp/1q1NkP2/R4b2 b - - 0 1 illegal: No proof kernel
1nKBQN2/6b1/rBB3qb/pPq2k1B/1r2b3/bRB3N1/P6N/nr3rR1 b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 b6 c4 g4 c5 bxc5 h3 cxd4 hxg4 d3 g5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Kf7 Ke3 e5 Ke4 a5 Kd5 h5 b4 c5 f4 c4 g4 e4 g6+ Kf6 g7 h4 b5 h3 Bg2 h2 Be3 c3 Nf3 c2 Qe1 c1B Bb6 e3 Rg1 h1Q Nc3 e2 Nh2 d6 Rb1 d2 Rb3 Nh6 g8B Qe7 Bf7 Ba3 Bh5 Ra6 Be4 Qg2 g5+ Kg7 g6 Kf6 g7 Qg6 Bg2 Ng4 Bf3 Nf2 Bd8 Ne4 Bg2 Nc5 g8N+ Kg7 Ne4 d1R+ Nd2 Bd7 Nf6 Rb1 Ndf1 Bc8 Ng3 Bb7+ Kc4 Qe5 Nh7 Be4 f6+ Kh6 f7 Bg7 f8B Qe7 Qd2 e1B Qe3 Bd2 f5+ Qeg5 f6 d5+ Kd4 Bdc1 Qe2 Qe3+ Ke5 d4 Bb6 d3 Kd6 d2 Kc7 d1R f7 Rf1 Be7 Rd8 f8B Rd4 Bf6 Rb4 Bd8 Qc3 Kc8 Qc2 Nf6 Kg5 Nh7+ Kf4 Bgf3 Ke5 Bfe7 Bch6 Bf6+ Kf4 Nf8 Qc4 Nh1 Kf5 Bc3 Qd5 Rb2 Nb3 Ng3+ Kf4 Qe1 Na1 Rb3 Qdg5 Bfg4 Qe5 Bd7 Qe7 Bc6 Qc5 Nh1 Kf5 Qe3 Bd5 Qe8 Be4 Ng3+
1n2BRQ1/1bK4n/2N1PR1r/3B3q/1n1p1r2/P1n2RBB/3qkq1q/1B1Nb3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Kg4 c4 h5 g3 d5 a3 f5 c5 f4 e4+ f3 c6 h4 c7 h3 Kb6 d3 g6 d2 e6 b3 e5 h2 g7 b2 e7 Rh6+ e6 Nf6 e8B Ra4 g8B Nh7 Ne2 f2 Nbc3 Kf3 g4 b1N g5 Bb4 Bh3 f1Q g6 Qf2+ Nd4+ Ke3 Rg1 h1Q g7 Qhh2 Rg6 Qdh4 Rf6 Qh5 Bb2 Kd3 Qg4 d1Q Bc1 Qdd2 Nd1 Nc3 Bgf7 Na2 g8R Bc3 Rf8 Rc4 Qg8 Nb4 Nb2+ Ke3 Nc6 Rf4 Bg6 d4 Nd1+ Kf3 Bb1 Ke2 Ka7 b5 Kb6 Bb7 c8B Nd3 Ra2 b4 Kc7 b3 Rc2 Bb4 Rc3 b2 Rb3 Bc3 Bcd7 Nb4 Bc8 Qc2 Bcd7 Be1 Rf3 Qc3 Be3 Qd2 Bc8 Qfg3 Bf2 Qgg2 Bg3 Qf2 Be4 b1N Bcd7 Nc3 Bb1 Ba6 Bc8 Bb5 Bb7 Ba6 Ba8 Bb7 Ne5 Bc8 Bd5 Bb7 Nc6
n1QBR3/4nR1P/1r6/R2Nr1pb/Bn1B2b1/5bb1/1k1RP1nq/1N1KR2q b - - 0 1 illegal: No possible last move
3B1n2/NB1q1r1p/bn2k1P1/q1P1R1KQ/r6N/5q2/1bR1r1Bq/B2r1BR1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 a5 Kg4 f3 b4 f2 e4 f6 c4 d3 g6 a4 e5 d5+ e6 d4 c5 a3 g7 f5+ Kg5 a2 g4 f4 b6 f3 b7 d2 b5 d3 b6 Nf6 g8B Ra6 Na3 Qc7 Bb2 Nd5 Rc1 a1Q Rc2 Nd7 b8R Qg3 b7 Qh2 Nb5 Bg7 Na7 Qa5 Ba1 N5b6 Ra8 Bd4 b8B Bb2 Bc7 Nf8 Bg2 f1Q Bd8+ Ke8 e7 Kd7 Bd5 f2 Qe2 d1R Nf3 d2 Rg1 Bb7 Be4 Ke6 e8B Rg8+ B8g6 Rg7 Rc8 Rf7 Nh4 Re1 Qf3 d1R Bc6 Re3 Bd3 Re2 Rc7 Bc8 Bb7 Qfe1 Rd7 f1Q Rd5 Qb5 Bc4 Ra4 Qh3 Qf3 Re5+ Kd7 Bd3 Qea5 Bc4 Red2 Bcf1 Re2 Kh6 Qbd3 g5+ Qdf5 g6 Q5g4 Be4 Ba6 Bb7 Qgf5 Qg4 Qe6 Qh5 Qed5 Rf5 Ke6 Kg5 Qd7 Re5+
2b2rqQ/1rrP4/1BR2RBn/1R1p4/Bn1PN2N/K1k2nr1/2q1BB2/5rq1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 c5 Bd6 cxd6 exf4 e4 Kd7 b4 Ke6 g4 Ke5 d3 Kd4 Kd2 h5 Kc2 c5 Kb3 a5 d7 f5 b6 a4+ Kb2 f3 e5 f2 g5 c4 g6 f4 b5 c3+ Ka3 h3 b7 h4 e6 h2 b6 c2 g7 f3 Nc3 h3 Ne4 Na6 b8B Ra7 b7 Nh6 g8B Nb4 Bh7 Qg8 Nc5 Kc3 Be2 f1N Be3 c1R Bg3 f2 b8R Rb7 Nf3 Nd2 Bg6 f1R Nh4 Nf3 Bgf2 Rg1 Ra2 Rg3 Rf1 h1R Rb2 Rc2 Qa1 h2 Ra8 Rhg1 Ra6 h1Q Rc6 Qh3 e7 Qf5 e8B Qe4 Bf5 Qc4 Beg6 Qe4 Na6+ Qc4 Bb6 Rc1 Nc5 Rc2 Re1 Rf1 d4 Rc1 Bc2 Qd3 Bcd1 Qc2 Rf6 Qg7 Qb1 Rf8 Qa2 Qg8 Rb1 Nc6 Rb5 Nb4 Qb1 Qd2 Qe4 Qc2 Qe5 Qd3 Rf5 Rfg1 Ne4+ Kc4+ Kb2 Rc3 Qh8 a3+ Ka1 a2 Kb2 Rc1 Ba4 Rc3 Rc1 Rh1 Bed1 Qe2+ Rc2 Kd3 Rf6 Rcc7 Kb3 a1Q Rcc6 Qb1+ Ka3 Qec2 Nc5+ Kc3 Be2 Qf1 Rfd6 Qg2 Re6 Rf1 Rf6 Qg1 Ne4#
3b1B2/1n1PrQ2/N2pBbN1/bKb1N2k/R2P2qR/bR3r2/2N1Nr1b/5b2 b - - 0 1 illegal: No possible last move, all moves rejected
k2b2Bq/2N1R3/BbPN3r/R4nB1/q1n2K2/Qqp2N2/q1P2BB1/3q2bb b - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 b5 b4 a5 d4 axb4 g5 c4 g6 hxg6 Qd3 g5 Qd2 g4 Qd1 Ra6 Be3 Rc6 Bc1 Rc5 dxc5 Qc7 Qd3 Qb6 Qd1 Qd8 Kf2 g5 Kg3 f5 e4 d5 a4 Kd7 h4 Kc7 e6 Kb7 a5 f4+ Kg2 d4 e5 d3 h5 c3 h6 f3+ Kg3 f2 h7 d2 e7 b3 e8N b2 e6 b4 e7 b3 Nc7 Nc6 e8B Nge7 Qe2 d1Q Na8 Nf5+ Kg2 g3 Kf3 g2 Bg6 Be7 Na3 b1Q Nb5 b2 Bf7 g4+ Ke4 g3 a6+ Kb8 Nac7 Na5 Bg5 Bb7+ Kf4 Be4 Ra4 Qa2 Nd6 b1Q Bd5 Qd7 Bg8 Bd8 Qd2 Qbb2 Qc1 Qbb3 Qa3 Qdb5 c6 Nc4 Ra5 Q5a4 Rh6 Qh5 Re6 Ka7 Re7 Qd1 Be2 f1Q+ Bf3 Kb8 Ne2 Qh1 Nd4 Bd5 Be4 g1B Bf3 g2 Be4 Ka7 Bf3 Kb6 a7 Bf2 a8B g1B Bb7 Qh5 Ba6 Ka7 Bh1 Bg2 Nf3 Bb6 Ne5 Bf1 Bhd5 Bg2 Be4 Bh1 Bg2 Qh6 Nf3 Qg7 Be6 Rg8 Bf7 Qh8 Bd5 Rg6 Bg8 Qf6 h8B Rh6 Re3 Qg7 Re7 Qh7 Bg7 Qh8 Bd4 Kb8 Bf2 Ka7 Nd5+ Ka8 Nc7+
k5qq/3N3b/2Bp2Bb/1Q2P3/rpnB1R2/NPnN2r1/qN1r1b2/2N3RK b - - 0 1 illegal: No possible last move, all moves rejected
R2R3b/nnq2bk1/2P2qBr/1r2p1Q1/2Nn1RNP/NN2b3/2qN3p/2B2K2 b - - 0 1 illegal: No proof kernel
bbr2bB1/4NP1r/4qN2/1R1Q4/1p1Rp3/2N1k1n1/N1P3nB/RKNr1q1n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 f4 Kf6 h4 g5 a4 d5 a5 b5 a6 e5 a7 b3 h6 d3 h5 b2 h7 b4 h6 g4 Rh4 g3 Qg4 g2 Nc3 b1Q Qh5 d4 Na2 Qd6 Ne2 g1B Bg2 Ne7 Bd5 Na6 Bg8 Rb8 a8N Nc5 Nc7 Ng6 Nb5 Bh2 Nbc3 Bb7 Bb2 Qe6 Nec1 Rc8 Qd1 Ke7 f6+ Kd6 f7 Ba8 f5 Nf4 f6 Ng2 Qh5 Kc6 Qf3+ Kb6 Qd5 Ne4+ Kd1 d2 Rf4 Bd6 f8N Ng3 Rf5 e4 Nd7+ Ka7 Qb3 Bf8 Rb5 Ne2 Qc4 Bb8 Qd5 Ng3 Bf7 Rg8 h8R Rg7 Bg8 Rh7 f7 Nf1 Ke2 d1N Nf6 Ng3+ Kd2 d3 Na4 Qf5 Be5 Qe6 N4c3 Nf2 Bf4 Nfh1 Bc7 Nh5 Bh2 N5g3 N1e2 Qb3 Kc1 Qc4 Kb1 d2 Nec1 Qf1 Rc5 Kb6 Rc4 d1R Rd4 Rg7 Rh7 Rg6 Rg7 Rg5 h7 Rh5 h8N Rh6 Ng6 Rh7 Qb7+ Kc5 Ne7 Qd7 Rg5+ Qdf5 Rd2 Kc4 Rd5 Qe6 Rb5 Kd4 Rgd5+ Ke3 Rd4 Rh8 Qd7 Rh7 Qd5
1qb3N1/r2R1pq1/k5N1/6B1/1B1b1n1q/4PKbr/p2PRnBr/1Q2N1NN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 d6 h5 g5 c4 g6 c3 e3 h3 b6 Kc6 b7 Kb6 d7 h2 g7 a4 b5 h4 Ra3 c2 Qg4 h3 Bb2 c1B Bc3 f3 Qb4 Nf6 g8N Nh5 Bg2 Na6 b8N Nf4 Nc6 Nc5 Ne5 Bd6 Nd3 Ra7 Ne1 Ncd3+ Kg3 f2 Kf3 Kb7 b6 Ka6 b7 Bb2 b8B Qg5 d8N Qg7 Nc6 Rh7 Ra2 a3 Ne5 Rh8 Ng6 f1Q+ Ke4 Nf2+ Kf3 Rh4 Qe4 Qc4 Bb4 Bd4 Nc3 Qb3 Qb1 B6e5 Rc2 a2 Nce2 Rh6 B8d6 Rh5 Be7 Bc7 Ba5 Qb8 Ng3 Bce5 Rc7 Bd6 N1e2 Rh7 Rg1 h1R Bg5 h2 Bb4 Rh3 Rf1 Rg1 Rd7 h1Q Nf8 Qh2 Ng6 Rh1 Rg1 Rh5 Rf1 Qh4 Ng1 Rh2 Nh1 Nd5 Nd3 Bg3 Re1 Nf4 Re2 Qh3 Ne1 Rh8 Bf6 Qhh6 Ba3 Qg5 Bd8 R8h3 Bb4 Qh4 Bg5
1B2N1qQ/1BP1Bb1N/q4p1R/3P1n2/4r2p/1qB4r/1b2NknR/bKB2r2 b - - 0 1 illegal: No proof kernel
1rR1R2R/rqp3bQ/p4N2/rk2KB2/bN6/BP2PbnB/2qR2R1/2q4n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 f5+ Ke5 h3 g4 h4 d4 f3 b3 a6 d6 h2 b6 Kc6 b7 h3 d5+ Kb5 g5 f2 g6 f4 d7 f3 d6 Nh6 g7 Ra7 g8B Nf5 Be6 Ng3 Qc2 Qe7 d8R Qh7 Ra3 Bd7 e3+ Qd3 Bg2 f1Q Bf5 f2 Rc8 Bh6 Bb2 Qc1 Nf3 f1R Ra2 Qc4 Qe4 Q4c2 Nbd2 Be8 Rg1 h1B d7 h2 d8R Re1 Bgh3 Bg7+ Kd5 Rg8 Rg2 Nd7 Ba3 Nc5 Ne5 Nd3 Nc6 Nf2 Nb4 Bd7 Re8 Re2 Rg1 Bf3 Rg2 h1Q Rb2 Bc6+ Ke6 Rf8 Qh4 Re1 Ne4 Rd1 Qh7 Rd5 Rh2 Qg2 Nf6 Nfh1 b8R+ Kc5 Rb7 Ba4 Rbb8 Rh8 Ra8 Kb6 Ra2 Ra5 Rb2 Kb5 Ke5 Bh5 Ra2 Qb7 Rd2 Bf3 Rb2 Rf8 Ra2 Rf7 Rh8 Rd7 Rce8 Rd8 Rg2 Rb8 Rc8 Q2d1 Rad2 Qdc2 Rce8 Rd8 Re7 Rd4 Rag8 Rd8 Re6 Rda8 Rc8 Rb8 Ree8
1K1b2R1/p1nRn3/BB4Br/P2B3Q/kB3qqb/1P1r2b1/rp1R4/N3Nn2 b - - 0 1 illegal: No possible last move, all moves rejected
Bq2n3/kR2r3/3B4/r2bB3/P2NR2p/N1PrnpB1/1r3bBK/Nb2r1Q1 b - - 0 1 illegal: No proof kernel
rbKR3n/N7/3b1QB1/2BbRNp1/2BN4/2B1pb1P/1rnb1Pr1/1k3q1B b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Ke3 Kg6 Kf4 d5 Ke5 a5 c4 g3 b4 g2 h3 e6 b6 d4 b5 a4 b7 a3 c6 d3 b6 e3 c5 d2 c7 e2 c6 e1B Nc3 a2 Ne4 Ne7 Ba3 Na6 b8B Bb7 c8B Nb4 c7 Qd3 Nf3 g1R Nd6 Nc2 Bc5 Rg2 Nd4 Bd5 Qf3 d1B b7 Bd2 N6f5 Rh7 Kd6 e5 Kd7 e4 Qf4 Bf3 Rd1 a1B Kd8 Qb5 Bc4 e3 Rhg1 Kf6 Bba7 Rh4 b8N Ng6 Bb7 Bd6 c8B Nh8 Nbc6 Qb1 Bab6 g5 Ba5 Qc1 Na7 Rh7 Bc6 Rb7 Bc3 Rb2 Be8 Qb1 Bg6 Bb8 Bb7 Qc1 Qg4 Ke5 Kc8 Qb1 Qg3+ Ke4 Qd6 Qc1 Qf6 Qb1 Ba2 Kd3 Bb3 Rh2 Rg4 Rg2 Rh1 Qf1 Re4 Rb1 Re5 Bb2 Bc6 Ba3 Bb7 Rb2 Ba2 Qe2 Rd1 Qf1 Bb6 Bad6 Bc5 Ne1 Ndc6 Kc2 Bc4 Bc1 Ncd4+ Kb1 Bc6 Nc2 Nb3 Bg8 Rdd5 Bd2 Nbd4 Bdc7 Rd6 Bgd5 Rd8 Bd6 Re7 Be2 Nf3 Rg4 Ne5 Bg8 Bh1 Bd5 Nec6 Bef3 Ncd4 Rg2 Re5
1Q1r3b/2R2B2/1b2r1p1/RR2n2p/2nq3n/B1nk1P1P/RR1N1r2/1Nn2BK1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Na3 exf4 Nb1 f3 e3 f5 Qd2 f4 Ra3 f2+ Ke2 Bb7 Ra1 Bc6 Qd1 f3+ Kd2 Be4 Bd3 f1N+ Ke1 f2+ Ke2 Bf3+ gxf3 Qa5 Ra3 Qc7 Ra1 Qd8 c4 Ke7 b4 Kf6 e4 Ke5 c5 a5 c6 d5 c7 h5 c8R g6 b6 a4 b5 a3 b7 a2 b6 Ne3 Na3 f1R h3 Nc4 Qb3 Nc6 b8R Bc5 b7 Ra6 Qb2 Nh6 Rc7 Nf5 Rh2 Nh4 Ra8 Qd6 b8R Rd8 Raa7 Rb6 Ra5 Qf6 Rb1 a1B Qb5 Qg7 Bb2 Kf4 e5 Qh8 e6 Qf6 Rh1 Rf2+ Ke1 Ke3 e7 Qf4 Bf1 d3 e8B d4 Bg2 Qg4 Ne2 d2+ Kd1 Ra6 Bf7 Qd7 Nc3 Rb6 Kc2 d1N+ Kc1 d3 Ne4 d2+ Kc2 Qd5 Re1+ Kf4 Re2 Qd7 Bc1 Bh8 Bb2 Bcd4 Kd3 Qd5 Ra1 Nc3 Nb1 d1N Ba3 Na2 Rb2 Ndc3 Ned2 Ra6 Qb7 Qe5 Qa8 Qd6 R8b5 N6e5+ Kc2 Ke3 Qb8 Nc1 Raa2 Nd5 Kd1 Nc3+ Ke1 Kd3 Bd5 Bc5 Bg8 Qd4 Bf7 Re2+ Kf1 Rf2+ Kg1 Re6 Nb3 Ba7 N3d2 Bb6 Bf1+
8/1B3B2/QnN1pR1p/3k1P2/1r1NnRBK/R6b/b1qnPB1B/n1b3nr b - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h4 f5 hxg5 fxg4 c4 Kf7 f4 Ke6 Kf2 a5 Kg3 d5 b4 d3 c5 h6 b6 d4 b7 d2 g6 d3 g7 a4 c6 a3 b5 a2 c7 Bd7 c8B Nf6 b6 Qc7 Nc3 Ne4+ Kh4 g3 Nb5 g2 Nd4+ Kd5 Ngf3 g1N Qa4 d1B Nc6 d2 Nfd4 Bb3 Bh3 d1N Bg4 Nd2 Qa6 Nf2 g8B+ Be6 Bf7 Nfe4 Bb2 Nd7 b8B Ra7 b7 Nb6 Rf1 a1N Rh3 Ba2 Ra3 Ra8 Bc3 Rg8 Ba7 Rb8 Bb4 Rg6 Bd6 Rg5 Bf3 Rg3 Bg4 Rb3 Rf2 Rb4 Be5 Ra8 b8R Bg7 Bb7 Bf6+ Kh5 Bg5 Rg8 Rb8 Rg6 Rb1 Rf6 Re1 Bg6 Bf5 Bf7+ e6 Bf3 Bh3 f5 Be3 Bg4 Qc8 Bh2 Qc7 Ne5+ Qc6 Kh4 Rb1 Bc8 Qc2 Nec6 Rb4 Bb7 Rg8 Bf3 Rg3 Bg4 Rg2 Bg3 Rh2 Rf4 Rh1 Bb8 Nf1 Bf2 Bc1 Rff3 Nfd2 Bh2 Rb5 Rf4 Rb3 Ra4 Rb4 Ra3
NKb5/3B4/bbPR1p1B/3kBn2/1n1p1q2/PR5n/3NNB1B/2Qrb1rb b - - 0 1 illegal: No proof kernel
q3N1b1/1RBQ2NP/1R1bpr2/3p2Bn/B2n4/1R2bB1K/b2Pn3/1rb1k1B1 b - - 0 1 legal: proof: e4 b5 a4 h5 g4 f5 exf5 hxg4 axb5 c5 b4 cxb4 f4 Kf7 Kf2 Kf6 Kg3 g5 c4 a5 h4 d5 b6 a4 b7 b3 c5 a3 c6 e6 c7 a2 h5 b2 h6 Nd7 b8R Bc5 h7 Nh6 Rh3 Rf8 Nc3 b1B Be2 Bd6 Nf3 Ra6 Rb7 Rb6 Nb5 Rf7 Kg2 g3 Qa4 g4 Ba3 Qe8 Nh4 Qd8 Kg1 g2 Kh2 g1N Bf3 Ne2 Bc5 g3+ Kg2 Qh8 Bg1 Rf8 Ra7 Bb7 c8B Bc6 Nc7 Rf7 Ba6 Qa8 Rb7 Rb2 Bb5 Rb3 Kh1 g2+ Kh2 Rf8 Qa7 Rb4 Ba4 Bb5 Bc5 g1B+ Kg2 Be3 Ne8+ Kf7 f6 Nf5 Rb6 Nfd4 Nf5 Kg6 f7 Nf6 Nfg7 Nh5 f5+ Kg5 f6 Kf4 Qd7 B5d3 Rg3 Bg6 Kh3 Rb5 Bg4 Ke4 Bf3+ Kd3 Rb7 Rb2 Bb6 Rb3 Bc7 Kc2 Rb6 Kd1 Rb7 Ke1 Rb6 Rg8 f8B Bf7 Be7 Rf8 Bed8 Bg8 f7 Ba3 Bg5 Bc1 Qe7 Bd3 Qd6 Bc4 Rb1 a1B Qd7 Rb5 Rb4 Ba2 Rb3 Bab2 Rg4 Ba3 Re4 Nf5 Reb4 Nfd4 Rb7 Ra5 R4b5 Bd6 R5b6 Rb5 Nf6 Re8 f8B Re7 Nfe8 Rf7 Bfe7 Rf6 Bed8 Be7 Bh2 Bd6 Bg1 Rb4 Bc7 Rb5 Ra3 Rb1 Rab3
4r1nK/3pqB2/Bb4R1/1n6/1r1Pbpn1/Nk1n1NB1/1N2B2P/r1Bn2QR b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 Kf2 Ke7 e4 Ke6 c4 g5 d4 f5 e5 a5 b6 a4 b7 f3 Ke3 a3 c6 f2 c5 Kd5 e6 f4+ Kd3 a2 e7 g3 e8N g2 c7 g4 c6 g3 Qg4 Ra4 Nf3 g1N Na3 g2 Nd6 Ne2 Ndc4 g1N Nb2 Nh3 Qg1 Na6 b8B Nc3 Be2 Bb7 c8B f1N Be5 Rb4 c7 Nb5 Bf6 Qe7 Bh4 Ne3 Bg3 Ng4 Rb1 Bc6 Bb7 a1R c8B Nc5+ Kc2 Na4 Kd3 Nac3 Ba6 Nd1 Bcb7 Qe8 Ba8 Bc5 B8b7 Bb6 Ba8 Na7 B8b7 Qe7 Bc4+ Kd6 Bf7 Nb5 Ba6 Bb7 Be6 Kc6 Ke4 Nhf2+ Kf5 Nd3 Kg6 Kd6 Bf7 Be4+ Kg7 N8h6 Qe3 Re8 Qg1 Ng8 Nc2 Qe6 Kh8 Kd5 Na4 Kc4 Nb2+ Kc3 Na3 Kb3 Bd2 Nd6 Rc1 Nb5 Rc6 Nd6 Bc1 Nb5 Rc4 Qe7 Rc6+ Bd5 Re6 Be4 Rg6+
nN2RNrq/2pR2B1/r1r4n/1N3b2/4BP1k/Q1p1P1b1/N1N1b1KR/r4r2 b - - 0 1 illegal: No possible last move, all moves rejected
2K2RrB/2R1r1b1/3RnNQ1/1brB4/2b1R1n1/3ppNn1/1P1P2R1/1kn3qB b - - 0 1 illegal: No proof kernel forced: bxDB
BB6/K4n2/Rn2p1rB/N2BNR2/b4QPB/r4p1P/q3Rb1r/nb2k2b b - - 0 1 illegal: No proof kernel
1NKQNn2/r2R3q/3P1B2/1bN2B2/1r1N1pp1/2B1Pnk1/Nb4rR/3bnb2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 b5 a4 g5 e3 c5 d6 f5 h6 c4 h7 b3 a5 c3 d7 b2 Ke6 f3 a6 c2 d5 b4 a7 b3 Bd3 f2 Ne2 f1B Bd2 c1R Bc3 f4 Bf5 g4 Nd4 Rc2 h3 Rf2 Rh2 Kg3 h4 Nf6 h5 Rg2 h6 Bca6 Ra4 Qa5 d8N Ba3 N8c6 Nbd7 Nb8 Ne5 Qd3 Rf8 h8N Qc7 h7 Bb5 Nf7 Nf3 h8B Nh7 Nd8 Ne1 Nb7 Rg8 Nc5 Nf8+ Kf6 Qd7 Ke5 Qh7 Kd6 Rg5 Bf6 Rg6 Ra6 Rg7 Rc6 Rb7 Rc7 Rb6+ Nbc6 Rb7 Rd7 Rab8 a8N Ra7 Nc7 Rb6 Nd2 b1B Ne8 b2 N2b3 Bc2 Nc1 b1N Na2 Bb2 Qd2 Rbb7 Nb8 Bd1 Qd3 Qh3 Ke7 Qh7+ Kd8 Nd2 Kc8 Ndf3 Qd2 Bc6 d6 Rb4 Qc2 Bcb5 Qa4 Ng6 Qa5 Nf8 Qd8
n1NB1b2/1BkBr1Bb/1p1n4/1pPRrn2/2P3r1/5R1N/bn1K4/1RQ1B2q b - - 0 1 illegal: No possible last move
2Rrq3/2Qb3P/b1rnRr2/3NbNp1/N1k5/n1p2NB1/2Bn1PK1/1N2Rr2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 a4 Kd6 d4 c5 h5 e5 a5 b5 f6 g5 h6 c4 a6 e4 a7 b3 h7 b2 f7 e3 Nf3 b4 Nbd2 b1B Ra3 b3 Ra4 b2 Ra6+ Nc6 Bd3 c3 Kf1 g3 Bc2 e2+ Kg2 Bg7 f8R Be5 Re1 Bd7 Rb6 Qb8 Rc8 Nf6 Ra6 Ba2 Nb1 Bc4 Bf4 Rf8 Qd3 Bb5 Qc4 Ne4 Rb6 Nd2 Ra6 Ke7 d6+ Kf6 d5 Na5 Qc6 Nac4 Qc7 Rd8 Rb6 Ba6 Rc6 Qb5 Rb6 Rb8 a8N Qa4 Rc6 Rb5 Nb6 Rc5 Rb8 Qb5 Na4 Kf7 Rcb6 Rc6 Rc8 Kf6 Kg1 g2 Bg3 Bb7 Kh2 g1R Ra6 Rf1 Kg2 Bg4 Rb6 Ba6 d7 Ke7 d6+ Ke6 Nh4 Kd5 Nf3 Rg8 d8N Bd7 Ne6 Rd8 Na3 b1N Ng7 Na5 Nf5 Nb7 Rd1 e1R Rc1 Be6 d7 Nd6 Rd1 Re4 Rc1 Rf4 Re1 Re8 d8N Bd7 Ne6 Rd8 Nh6 Rf6 Nf5 Qb2 Nb5 Na3 Nf4+ Kc4 Nd5 Qb1 Bd1 Qe4 Bc2 Rc5 Rc6 Nb7 Re6 Rc6 Nh6 Qg6 Nf5 Qe8 Nbd4 Ne4 Nb3 Nbd6 Nbd2+ Kb5 Nb1 Kc4 Bd1 Nd2 Bc2
3Bn1Q1/1nk1K1p1/2P2r2/2rr1R1b/Bb3n1P/4pN1B/R3BbrN/1q1RB3 b - - 0 1 illegal: No possible last move, all moves rejected
qn1n4/r1Br1R2/1rBQ3N/B4Nr1/2k2Rpq/3bb2p/3PNrP1/2B2B1K b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 Ke7 b4 Kd6 e4 h5 b6 f5 b5 Kc5 d6 a5 b7 g5 b6 f3 e5 f4 e6 h4 d7 a4 d8N g4 e7 a3 e8B a2 Bd3 Rh7 Qf1 Rd7 Qe1 Nh6 Nc6 Nf7 Ba6 Ra7 Kf1 f2 Ne5 Bh6 Bb5 Nd8 Na3 c6 Rb1 a1Q Nac4 h3 Ne3 Qg3 Bc4 Qh4 Rb4 Kd4 Nf7 c5 Ba6+ c4 Ne2+ Kc5 Ra4 c3 Nf5 c2 Re4 Bg5 N7h6 Qh8 Re7 Kb4 Rf7 Kb3 Bb2 c1R Bd3 Rc4 Bc1 Rb4 Bb5 Qa1 Bc6 Kc4 Rg1 Na6 b8B Rb3 b7 Rb6 Bc7 Nb8 Neg3 Qa4 Qe5 Qa5 Qd6 Qd5 Ke2 f1R Rh1 Re1+ Kf2 f3 Rf1 Re5 Kg1 f2+ Kh1 Be3 Ne2 Qe4 Nfd4 Rg5 Ndf5 Rb3 Ba5 Rb6 Rg1 f1R Bb5+ Kb3 Ba6 Rf2 Rf1 Re7 Bc6 Rd7 Bd3 Qf3 Bde4 Kc4 Bb1 Na6 b8B Bb7 Bc7 Nb8 Bbe4 Ba6 Bb1 Qd5 Bd3+ Kb3 Be4 Bd3 Bb5 Qb7 Bec6 Qa8 Ng1 Re2 Rf4 Rf2 Ba6 Bb1 Bf1 Bd3 Nd4+ Kc4 Nge2 Bb1 Ndf5+ Be4 Ned4+ Bd3 Ne2+
1RQ3N1/3b2n1/n5R1/3B1PqP/rqRR1Rn1/b1pn3p/K5n1/3BkNBr b - - 0 1 illegal: No proof kernel
2n1q1Rr/Brr3q1/Qrb5/P5kn/1N2pPN1/2RBrRB1/3pBK1b/7B b - - 0 1 illegal: No possible last move
1R2q1B1/1bBqNb2/1bb1P1R1/B2Bk3/3b2P1/2B1r1p1/nr2pN2/n1N1Q1K1 b - - 0 1 illegal: No proof kernel
1RNn1qN1/2nb1nB1/2Q1P1qP/rnNN4/B1k5/2p2Kp1/2N1r1R1/B5bn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 e5+ Kd7 h5 a5 d6 Ke6 d7 Kd5 b6 a4 b7 a3 b5 f3 e6 f4 b6 c4 Bb2 a2 Nh3 c3 Qa4 Bc5 Na3 Nc6 b8N Nh6 b7 Ra5 Nc2 Qf8 d8B Bd7 Na6 Nf7 Bf6 Ncd8 Rb1 a1N b8N Nb3 Bg7 Rg8 h6 g3+ Ke1 f2+ Ke2 g2 Kf3 g1Q Ba1 Ba7 Bb5 f1N Rh2 Ng3 Nc6 Nh1 Rg2 Bc5 Na7 g4+ Ke2 Bb6 Nc8 Ba7 Nc5 f3+ Kd3 f2 Ke2 f1N Rb2 g3 Kf3 Ne3 Rb1 Be8 Rb2 Qb1 Bd7 Bb6 Qc6+ Kc4 d5 Ra2 d6 Nd5 Nf4 Nc7 Nd5 Nd4+ Kg4 Ba7 Rb8 Ndb5 Kf3 Ra5 Ne4+ Bc5 Nef6 Rh8 Ng8 Ra2 Qa8 Bg1 Bc6 Bd7 Qb7 Na7 Ba4 Nab5 Qa8 Bc6 d7 Rh7 Nd4 Re2 Qb7 Qg6 Nc2 Rh8 Qa8 Nb7 d8N Bd7 Nc6 Rh7 N6b4 Nbd8 Qc6+ Qc5 Bb2 Nfd6 Be5 Rf7+ Ndf6 Na7 Ba1 Rf8 Bf4 Rf7 Ne4 Rf5 Qa8 N6f7 Qc6 Rh5 Be5 Rg5 Bg7 Rh5 Qb6 Qf8 Qd6 Rc5 Nd5 Ra5 Nc5 Nab5 Qc6
1KnR1B2/1R1p1r2/1qP1Nn2/2rrPb2/B4Qr1/1N2bRRR/1rp2qk1/3N4 b - - 0 1 illegal: No possible last move
5R1B/1n1qQq1N/5Nqb/1r6/b1p2b2/K2PR2P/2BBn2p/kr1BRBb1 b - - 0 1 illegal: No proof kernel
3N1N2/1QNB1qr1/n3bR2/R2nrq1b/1p1b1qb1/4RP2/3k1PKp/BNN5 b - - 0 1 legal: proof: c4 a5 b4 axb4 h4 g5 Qc2 gxh4 Qa4 f5 Qd1 d5 cxd5 f4 Nf3 Qd6 Ng1 f3 exf3 Qd8 a4 Kd7 g4 Kd6 d4 c5 a5 b5 a6 h5 g5 e5 a7 c4 g6 b3 g7 h3 Be3 e4 Bc1 b2 Ra5 h4 Bg2 b4 Kf1 c3 Qb3 c2 Bh6 c1Q+ Qd1 e3 Qe1 h2 Nd2 b1B Nb3 h3 Rb5 Qa5 Ne2 Ne7 g8R Bg6 Nc3 Be6 Nb1 Rh7 Bg7 Bh5 Bf6 Bh6 Rg6 Bg7 Rh6 Qac7 Ra5 Na6 Rg1 Rg8 a8N h1B Rg6 h2 Bh3 Q7c2 Nc7 Qf5 R1g5 Qd2 Nc1 Re8 Qe2 Bh8 Qb5 Rg7 Qb7 Qa2 Bg4 Qf4 Re5 e2+ Ke1 Qc2 Re3 Qcf5 Rh6 Bg2 Bh3 Kd7 d6 Nd5 Be5 Qf7 Rf6 Re7 Bg4 Bh3 Bf5 Nc3 d5 B3g4 Kd2 e1Q+ Kd3 Nb5 Ba1 Qc3+ Ke2 Qc2+ Kf1 Nc3 Kg2 Re8 Bh7 Qcf5 Bg8 Kd8 d7 Ke7 d8N Kd6 Rd3 Ke5 Re3+ Kd4 d6 Kc4 d7 Nd5 Bh7 Q5g5 Bc2 Qgf5 Ba4 Re7 Nc6 Re8 d8N Re7 Nb8 Re8 Nd7 Re7 Na2 Re8 Re1 Kd3 Nf8 Re7 Bd7 Kc2 Nbc3 Kd2 Nc1 Rg5 Rg6 Bd4 Rf6 Rg7 Re3 Re8 Bb5 Bc8 Bc6 Re5 Be8 Be6 Nb1+ Kd1 Bd7 Kc2 Na3+ Kd2 Nb1+
NB5r/1R5q/3bn2B/b1Q2nqP/5Nkn/2P5/R1nRpRpR/1r3bKB b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b4 Kf7 h4 Kf6 f4 g5 Kf2 d5 c3 e5 h5 a5 b6 e4 b5 g3+ Kg2 g4 b7 d3 b6 d4 Nh3 d2 Bc4 d3 Qc2 d1N Bb5 e3 Ra2 a4 Kg1 a3 Be8 d2 Bb5 e2 Nf2 g2 Rb2 a2 Na3 a1N Ra2 Nh6 Nd3 Ne3 Nc4 Nd7 b8R Bd6 b7 Nc5 Rh2 Ne6 Bc6 Ra4 Qd1 Rb4 Nb6 Nac2 Na8 Rb1 Qe1 Qe7 Qf2 Qh7 Be4 Bd7 Rd8 Bc8 b8B Bb7 Rd7 Bc8 Rb7 d1Q+ Qe1 Qd2 Qf2 Nc4 Bf3 Ne5 Qc5 Ng6 Bd5 Bd7 Bc6 Nh4 Be4 Kf7 f6 N6f5 Bf3 Ng5 Be4 Ke6 f7 Kf6 Bc6 Ne6 f8R+ Qf7 Qa7 Nfg7 f5 Kg5 f6 Be7 Rc7 Be8 Rh3 Kf5 Kh2 g1B+ Kh1 g3 Rb7 Bb6 Rh2 Ba5 Qc5+ Kg4 Kg1 Qg8 f7 Qh7 Bd5 Bc6 Bh1 Bg2 Rd8 Bf1 f8R g2 Rf2 Ngf5 Rdd7 Qdh6 Bg5 Qf6 Bh6 Qg5 Nf4 Bf8 Rd1 Bd6 Rd2
1nrB1rrN/2N2B2/6b1/3N3P/1R2P1p1/p1Q3br/Knqn3R/3NRNkq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 a5 h4 f5 e3 g5 b6 a4+ Ka2 f3 b4 f2 b5 a3 b7 c4 b6 f4 Qd3 f3 Nd2 c3 Nh3 g3 Rh2 c2 Qc3 g2 Bc4 f1R Nf2 g1R Nd1 f2 h5 g4 Rb1 Rg3 e4 Nf6 Bb2 c1Q Ba1 Qc7 Bb2 Nbd7 b8R Rg8 b7 Nb6 Ra1 Na4 Rb1 Rh1 Nf1 Bf5 Ba1 Bg6 Bb3 Kd7 d6 Nb2 Bf7 Rh3 d5 Qc2 Rc1 Bh6 Rb1 Bf4 Rc1 Rc8 Rb1 Bg3 Rc1 Kd8 d7 Ke7 d8N Kd6 Ne6 Nd7 Nf4 Qb6 Rb1 Qd4 Rc1 Ke5 d6 Rg1 Nd5 Rf8 Rc8 Nb8 d7 Rg8 d8N Rg2 Nfe3 f1N Rc4 Rf2 Rb4 Nd2 Nf1 Rf6 Rb1 Rc6 Rc1 Rc8 Rb1 Kd6 Rc1 Qg1 Rb1 Qh1 Rc1 Nc6 b8N Rf8 Na6 Nb8 Nac7 Rg8 Nd1e3 Rf8 Re1 Rg8 Qc5+ Ke5 Nd1 Rf8 N5e3+ Kf4 Ned5+ Kf3 Qc3+ Qd3 Be8 Rg8 Nf7 Rf8 Nh8 Rg8 Nd1e3 Qc2 Bf7 Rgf8 Ng2+ Kf2 Nge3+ Kg1 Nd1 Nbc4+ Bb2 Rg8 Ka1 Rcf8 Bc1 Nb2 Ka2 Ndc4 Bg5 Nd2 Bh4 Na6 Bf6 Rac8 Bh4 Nb8 Bd8
N1R2N2/8/k2bRn1q/1RB2rqp/1Pn1R1p1/7q/KQ1nrqRP/3B2Nb b - - 0 1 legal: proof: e4 b5 g4 f5 e5 fxg4 b3 c5 a3 c4 bxc4 b4 axb4 d6 Ba3 dxe5 Bc1 e4 d4 Kd7 Kd2 Kc7 Kc3 Kb7 Kb2 g5 f4 h5 f5 e5 c3 a5 c5 a4 d5 a3+ Ka2 e3 c4 e2 f6 e1Q d6 e4 c6+ Ka6 d7 e3 c7 g3 c5+ e2 c6 g4 f7 g2 Qb3 Qeh4 Be3 Qdg5 d8R Qh3 Rd5 Nf6 Qc3 Bd6 f8N Bb7 c8R Nbd7 c7 Ne5 Qb2 Nc4 Bc5 e1Q Be2 Qf2 Re8 Rh6 Re7 Re8 c8R Rh7 Nc3 Rf7 Re6 Qfe3 Nf3 g1Q Nb5 Qgf2 Rag1 Qh6 Rf5 Qeg5 Rg2 Bc6 Re1 Ba8 Kb3 a2 Bd1 a1N+ Ka2 Nb3 Ng1 Nbd2 Rfe5 Bf3 R1e4 Ree7 Rg3 Bh1 Rg2 Ng8 Rd5 Rf5 Rde5 Nf6 Nc7+ Kb7 Na8 Ka6 Ba7 Rh7 Rb5 Rb7 Ree8 Re7 Bc5 Ree5 Rf4 Re4 Re6 Re2 Rfe4
1RrbqrR1/4n3/2n2QBP/B1kn3K/1b5n/3p1P2/1p1NN1b1/2BqB1BR b - - 0 1 illegal: No proof kernel
2R1b1n1/2BN2n1/2K1nQ1P/3rRp2/kRBb4/1p3P1n/1qrR4/2Rrq1NN b - - 0 1 legal: proof: d4 b5 b4 h5 g4 e5 dxe5 hxg4 a4 c5 axb5 cxb4 Kd2 d5 Ke3 Kd7 Kd4 g5 h4 f5 e4 a5 c4 b3 b6 Kc6 h5 a4 c5 a3 f3 g3 b7 a2 e6 g4 h6 g2 e7 g3 e8N Qf6+ e5 Nd7 b8R Bg7 Bd2 Nf8 Rh5 Bd7 Be3 Ra5 Nd2 Qe7 Nf6 Be8 Rb1 a1Q+ Rb2 Qb1 e6 Qc2 Ke5 d4 Ne4 d3 Rb4 d2 Qa1 d1R Nf2 Qb1 Rd2 Qb2+ Bd4 Rh7 Rh4 Bh8 Rc4 Kb5 Kd5 Ra2 Rc3+ Ka4 c6 Qb4 c7 Rd7+ Kc6 Rd5+ Nd7 Qa5 e7 Ne6 c8R Ng7 Ne2 g1N Rc1 g2 Nh1 Nh3 Bb6+ Nf4 Bc7 g1N Rg4 Nh3 Ng1 Qac3+ Bc4 Nfe6 Re4 Qe3 Rg4 Qe1 Re4 Qa3 Qf6 Rc2 Re5 Qb2 Rb8 Bh5 e8R Bf7 Rf8 Be8 Rb4+ Ka3 Rde2 Bf7 Rc8 Be8 Qg6 Nh5 R5e4 Bd4 Rd2 Nhg7 Qg5 Be3 Qf6 Bd4 Rbb8 Ka4 Re5 Qf2 Rb7 Qe1 Rb4+
n2qNK1N/1qn1n3/n4bQP/1p5R/4P3/1bR1rkR1/1R3rp1/1RB1B1qB b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 b5 a4 g5 d4 c5 h4 b3 h6 c4 a5 f3 h7 c3 h5 f2 h6 g4 a6 g3 a7 f6 Nd2 c2 Bg2 f1N Ngf3 b2 Ne5 b1Q Ng6 Bg4 Rh5 Bg7 Bh1 Ne3 Qg1 Nc4 e3 Qb2 Rb1 Bd1 Kf5 Nb6 e4 Na6 Qg2 Rc8 a8R Rc3 Rc8 Re3 Rc3 Na8 Qg1 Qa1 Rb2 Qaa5 Qg2 Qab6 Nc4+ Kc7 Qg1 Qb7 Ke6 f5 Kf7 f4 d6+ Kc6+ d7 g2 d5+ Kc5 Nd6+ Kd4 Ne8 f3 d6 Bf6 Kf8 f2 Qh2 f1Q Qg3 Qg1 Qg5 N6c7 Qg4 Qdb8 d8B Q8c8 d7 Ne7+ Kf7 Rg8 Nh8 Rg5 Qe6 Rf5 Kf8 Rf2 Qg4 Qcb8 Qg6 Q8c8 Rcc5 Kd3 Rc3+ Ke2 Rb1 Kf3 Rb2 Na6 Ba5 N6c7 d8R Qcb8 Rd4 Q8c8 Rdb4 Qd8 Bd2 c1N R4b3 Na2 Bc1 Ned5 Rb1 Ne7 R3b2 Bb3 Qg5 Nb6 Rd3 Nb4 Nf7 Bc4 h8R Re2 Rg8 Ba2 Nh8 Nba6 Be1 Nba8 Rc3 Bb3 Qg7 Rf2 Qf7 Nb6 Rg4 Nba8 Qg6 Nb8 Rgg5 Nba6 Rg3+
1B3K2/2q4b/q1N1N2p/2n1q1NP/kN1nn2p/2RN2P1/1B1qr2r/b1Q2RR1 b - - 0 1 illegal: No extended proof kernel
3qB1N1/2B1n1KB/3B1QPR/n1nNN1r1/RpbP2Bq/3bkpb1/5n2/7r b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 b5 a4 f5 e4 b3 a5 f3 d3 f2 a6 f4 g6 b2 a7 h4 g5 h3 g7 b4 g6 h2 d6 Na6 d7 Ne7 Kf6 Kd4 g8N c5 e5 c4 e6 c3 Ra4 c2 Bh3 f1B Qf3 Nc5 Nc3 b1Q Nd5 Ba6 Bg4 Bc4 Bd2 Rb8 a8B c1N Be1 Rb5 Bg3 N1b3 Bc6 Nf5+ e7 Na5 Kf7 Rh4 e8B Bd6 Ba8 Ne7 Kg7 Qe1 Qf2+ Ke5 d4+ Ke4 Nf3 Bfd3 Ne5 f3 Qg1 Qc8 d8B Rh8 Bc7 Qd8 Bf4 Qh4 Bg3 Rh6 Qc1 Rh5 Qg5 Rh8 Qf6 Rh6 Rha1 h1N Rg1 Nf2 Rh1 Rh5 Bac6 Rg5 Bcd7 Rb8 Bde6 Ra8 Nh6 Rb8 Bg8 Rb5 Bh7 Rb8 Nb6 Ke3 Ng8 Rc8 Nf7 Bf4 Ne5 Rb8 Bh2 Bg3 Nd5+ Ke4 Bc8 Ra8 Ra3 Bf4 Rb3 Qh5 Rbb1 Nab7 Nf7 Ra1 Bg4 Na5 Rb2 Be5 Ra2 Qh3 Bf4 Bd6 Rh2 Rh1 Ra4 Qg3 Rh6 Qh4 Bd2 Bg3 Bdf4 Nh3 Bfd6 Nf2 Nb6 Ke3 Nd5+ Ke2 Ne5 Kd2 Nc3 Ke3 Nd5+
4RB2/RB5r/3QBP2/1p2K2n/1n1BN1qP/2rNR3/p3qr1n/bk1b1n1B b - - 0 1 illegal: No proof kernel
1nk2Rr1/4nN2/qp1K3P/B2B4/3qBBp1/5n2/bBPbRr2/3rQrNR b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 d5 Kd3 Kd7 h4 g5 a4 e5 f4 g4 f6 b3 f5 b6 h6 b2 a5 Ra7 h7 Bb4 a6 Qe8 f7 Qe7 f8B Rc7 h5 Rb7 a7 Bd2 a8B Qa3+ Nc3 b1R f6 Qa6+ Nb5 Ne7 h6 Rg8 h8B Kd8 f7 Be6 Qe1 Kc8 Bg2 e4+ Ke2 e3 Kd3 e2 Be4 Rc7 Bb2 Rd7 Be5 Rd8 Bfg7 Rdf8 Bf4 Rd1 Bge5 Rc1 Bd6 Rd1 Bb4 Rc1 Qh4 Rf1 Ba5 Rf2 Bc6 Rf1 Ra4 Rf2 Rc4 Rf1 Nc7 e1N+ Ke2 Nf3 Qe1 Bf5 Ne6 d3+ Kd1 d4 Nd8 Bd7 Bcd5+ Bc6 Ra4 Bb5 Ra1 Bc4 Rh2 Ba2 Re2 Rg5 Rb1 Rfg8 f8R Rh5 Bg5 Rh2 Bf4 Rhf2 Ba3 Bc3 Kc1 Bb4 Kb2 d2 Rc1 d1R Ra1 Bb1 Kb3 d3 Bb2 d2 Ka4 Ba2 Rb1 Rc1 Ra1 d1Q Rb1 Qa7 Kb5 Qd4 Ra1 Rd1 Rc1 Bd2 Ra1 Nd7 Rc1 Nf5 Kc6 Ne7+ Kd6 Qa6 Ra1 Bb3 Ra3 Ba2 Rd3 Nfe5 Rh3 Nf3 Rh1 Nb8 Nf7+
r1R1B2b/bR4N1/Np2P1BP/n2nK3/2b2p2/1k1B2R1/rB3rB1/qQ1q1b2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 Kd3 Ke6 Ke4 g5 c4 b3 h4 g4 a4 d3 c5 f6 h6 d6 a5 d2 a6 g3 h5 b2 c6 g2 a7 Bg7 c7 Qe8 h7 Nc6 h6 Nge7 Nf3 g1B Na3 b1R Nb5 Nd5 Rh3 Rb2 Rb1 Ra2 Bb2 Na5 Nh4 Rf8 Rg3 Bh8 Nf5 Qh5 Qc2 d1B e3 Qg5 Bd3 Be2 Qd1 Bd7 c8B Qg7 Qe1 Bf1 Nc7+ Kf7 Kd4 Bb5 Na6 Bc4 Bd7 Bf2 Be8+ Ke6 Bg6 Rf7 Ne7 f5 Qb4 f4 Nf5 Rc7 Qb6 Bb5 Ke4 Rc2 Kd4 Bc4 Qb4 Qf6 Ng7+ Kd7 Ke4 Kc6 e6 Re2 Qe1 Kb5 e7 Ka4 e8B+ Kb3 Qc1 Qc3 Kf5 Bg1 e4 Rf2 e5 Qd4 Qe1 Qc3 Rd1 Qc1 e6 Qa1 Rb1 Nb6 Bgf7 d5 Ke5 d4 Bfg6 Nd5 Rc1 Bb5 Rc7 Bc4 Qb1 Nc3 Bde4 d3 Rd7 d2 Bd3 d1Q Rc7 Rb8 a8B Nd5 Rd7 Rh2 Rf7 Ba7 Rc7 b6 Bac6 Rf2 Rb7 Nc3 Bg2 Ra8 Bf3 Ne4 Bg2 Nf6 Nh5 Bg7 h8R Bb5 Bec6 Bc4 Rc8 Bh8 Bce8 Nd5+ Ng7
b5kN/Nbn1R3/1pqp4/Qnq3BP/rR3K2/RR2rb2/NP6/1R1q2qB b - - 0 1 illegal: No extended proof kernel
4R2K/r4R2/P1p1RP2/3Rbb2/nnBN1b2/r1q1n3/1NqB1npN/3QR2k b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 e5 f4 g5 d4 b5 a4 g3 h4 g2 a5 c6 h5 g4 f6 g3 f5 b3 h6 b4 f7 b2 f6 b3 h7 Ne7 Na3 b1N Qd3 b2 Rh3 Nc3+ Kf3 b1Q Bd2 e4+ Kf4 e3 Kg5 e2 Nf3 e1N Nh2 Nf5 Kg6 Bh6 f8R g1B Rf7 g2 Re3 Ra7 Re8 Rf8 h8R Qc2 Kh7 Na6 Rb1 Nb4 a6 Rg8 Re3 Rg4 Rhe8 Na4 Kh8 Qa5 Qe2 Ned3 Qd1 Nf2 Bc4 Bd7 Ra1 Rg3 R3e6+ Kc7 Rc1 Ne3 d6+ Kb6 d5 Kc5 Rb1 Kd4 Ra1 Bc8 d7 Bf4 d8R Be5 d6 Ke4 d7 Kf4 Bd5 Qac5 Bb3 Q5c3 Nc4 Rf3 Nb2 Kg3 Bc4 Kh3 Nf1 Bgh2 Rc1 Bhf4 Nh2 Bb7 Rb8 Rg3 d8N Bc8 Rb5 Rf3 Rd5 Bd7 R6e7 Bf5 Ne6 Kg3 Nd4 Kh3 Nf1 Rg3 Re6 Rf3 Ng3 Kh2 Nf1+ Kh1 Qe2 Neg4 Re1 Rd3 Qd1 Ne3 Bb3 Qc5 Bc4 Ra3 Ba2 Q5c3 Bb3 Ra8 Bc4 Ra7 Nh2+
2RB2K1/1b1Nb2P/r4r2/3p1r1k/1bnq1p2/PBR1q2Q/1BB1N3/1Bn1N1b1 b - - 0 1 illegal: No proof kernel
1R1N4/2nRB1RP/pRKQ1rRq/8/1BN2nBq/1r2bP1k/b1q1p1b1/2b5 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 d5+ Kc5 g5 b4 g3 h4 d3 c4 d4 b6 e5+ Kb5 g2 h5 e4 b7 e3 h6 g4 c5 Kg5 f6 d2 c6 g3 f7 d3 h7 Na6 b8R Bh6 f8B Nf6 c7 Nd5 Nh3+ Kh4 Ba3 g1B Ng5+ Bh3 c8R g2 Be2 Nf4 Nf7 Nc7+ Kc6 a6 Bh5 e2 f3 Be3 b5 g1Q b6 Qh2 b7 Bg2 Bab4 Kh3 Na3 Qh4 Bfe7 Rf8 Nc4 Bg5 Nd8 Rf6+ Ne6 Bh6 Rg8 Bg5 Rbd8 Rb8 Rg7 Bh6 Rg1 Bg5 Qe1 d1Q Rd7 d2 Rb1 Qc2 Qc1 d1B Qd2 Bh6 Qd6 Bg5 Bg6 Qh6 Nd8 Qg3 Be8 Qgh4 Rg6 Qd2 Rg7 Bb3 Bh5 Ba2 Rb2 Qc2 Rg6 Ra8 b8R Bc1 Be1 Ra7 R2b6 Rb7 Bd2 Nfe6 Be1 Bge3 Bb4 Nf4 Rg7 Bh1 R1g5 Bg2 R5g6 Bf1 Ba3 Bg2 Rb1 Rb3 Rb2 Rc3 R2b6 Rd3 Bb4 Rb3 Bg4+
1r4b1/BB1r1Pb1/qq2rr1P/RB4nQ/1N1B4/4R1p1/1p1k1N1n/2N1b1BK b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 Kf2 Kd6 Kg2 Kc5 a4 Kd4 h4 g5 d6 e5 f6 b5 d7 c5 a5 e4 f5 e3 f7 g3 d3 c4 a6 g4 f6 c3 h5 e2 a7 e1B h6 b3 Qc2 b4 Rh4 b2 Rh1 b3 Qd1 c2 Nd2 Kc3 d4 b1R d5 b2 d6 Rh7 Rh3 Nc6 Kh1 Qb6 d8N Bg7 f8B Rb8 a8B Be6 d7 Qa6 Bc5 Nd4 Bb7 Nf3 Nb3 Ng5 B1e3 c1R Ra5 Rc2 Bb5 Re2 Nc1 g2+ Kh2 Ra1 Nc6 Ra4 d8B Rf4 Qd5 Kc2 Bed4 Kd2 Ba7 Bf7 Rg3 Re6 Re3 Rf1 Nh3 Rf2 Kg3 g1Q+ Kh4 g3 B8b6 Rf1 Nf2 Ne7 Nfd3 Re8 Rf3 Nh3 Bdc5 Bf8 Qb3 Nd5 Ncb4 Ne3 Qd5 Ng4 Qh5 Bg8 Bf2 Rd7 f7 Rb8 Bbc5 Qg2 Bg1 Nh2 Bcf2 Qh1 Bfd4 Ng5 Re3 Rff6 Nf2 Qg2 Ra2 Bg7 Ra5 Nf1 Kg4 Qgc6 Kh4 Qcb6 Kg4 Nh7 Kh3 Ng5+ Kg2 Nh2 Kh1
1n4n1/1b1q1P1N/1Rqb1P1r/n1R2rN1/1R1RBp1k/p3B3/5nKN/1Qb3R1 b - - 0 1 illegal: No proof kernel
1kr2r2/2r1P3/N1n1R1b1/pQ2pB1r/Rb5R/n6K/RP1b1B1B/1qNq1R2 b - - 0 1 illegal: No possible last move
3n3r/1bBNpN2/qRn4b/1PNr1Rpq/P1Nr3r/1B1B3b/5Q2/NK3k2 b - - 0 1 illegal: No possible last move
nB1nq2B/r2PB2n/3K4/3B1b2/1p1R1pQN/1PRN3b/qk3bbB/4Nr2 b - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 Qc2 a3 Qb2 axb2 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 f5 h4 g5 a4 b5 d4 c5 a5 g4 a6 f3 a7 c4 d6 c3 d7 g3 d5 f2 h6 g2 h5 c2 h7 Nf6 d6 Ne8 h6 Qh4 d8B Qh2+ Bf4 c1N d7 Bc5 Na3 Kc3 Bc4 f1B Bd5 b1B Nh3 g1Q Be7 b4 Nc2 Bb7 Nf2 Qgg2 Ne1 Qg8 Nfd3 Qf2 Rh3 Nf6 Bh2 f4 Ra6 Bc2 Rd6 Qe8 Rf3 Rg8 h8B Na2 h7 Bh3 Bg7 Bc6 h8B Nh7 Bf6 Rg4 Ke6+ Bd4 e5 Bb7 Bfg7 Nc6 Bf8 Qe2 Bfg7 Bf2 Bf8 Rc8 a8Q Rc7 Qa7 Qd2 Qe3 Ba8 Qe2 Ra7 Re3 Rg8+ Qg4 Nd8+ Kf5 Ra3 Bf3 Qc1 Bef6 Ne6 Rd4 Qc8 Re2 Bh4 Bd6 Neg5 e6 Bf2 Ke5 Ra7 e7 Ne6 e8N Qb2 Ng7 Qe8 Bfe7 Nd8 Nf5 Qb1 Nc1 Kb2 Qg6 Nc3 Qg2 Qa2 Re3 Nb5 Nh4 Nc7 Rc3 Bcf5 Qg7 Bae4 Bh1 Na8 Bb8 Bc6 Kd6 Bce4 Qg6 Bb7 Qh5 Rg1 Qg4 Rf1 Be4 Ba6 Bc6 Bad3 Bb7 Bde4 Bd5 Beg2 Ncd3+
1N1rb3/qq1PK1P1/R2B2rn/nNB1b2k/N7/p5rb/p2Q1RN1/r1N2B2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kf7 Kd3 a5 Kc4 h5 Kc5 e5+ d6 e4 d4 h3 b4 e3 f4 h2 g4 a3 b5 c6 d5 h4 f6 Kg6 g5 e2 f7 e1Q b6 h3 b7 a2 Nc3 a4 Nb5 Qh4 Ne2 Qe7 f5+ Kh5 g6 Ra6 f6 Bg7 f8B Qf2+ Be3 Nh6 f7 Be5 g7 a3 Qd2 Bd7 Nc1 Be8 Rg1 h1B Rg6 Qc7 d7 h2 d8N Bg2 d6 h1R d7 Rh3 Ne6 Rg3 Bd6 Bh3 f8N Qg2 Rf6 Rb6 Ng6 Rf8 Kc4 c5 Nh4 Nc6 b8N Qa7 Rf2 Qh1 Ng2 Na5+ Kd5 c4 Bec5 c3 Rb1 c2 Rb4 Rh8 Ra4 Rc6 Ng5 Rb6 Ne4 Rf8 Nec3 Rh8 Bc7 Rbg6 B7d6 Rf8 Raf4 Rg8 Rf6 Rh8 Na4 Rf8 Nb3 c1R Re6 Ra1 Nc1 Rg8 Ref6 Nf5 Ke6 Nh6+ Ke7 Rf8 Ne1 Qhb7 Re6 Bf7 Ng2 Rd8 Bc7 Be8 Ra6 Qc6 B7d6 Qcc7 Ne1 Qcb7 Ng2
N1r1q1Qn/3Pp1R1/K2kp2B/1n2qrn1/1N1BB3/R2BBR2/2P2b2/1b1n3b b - - 0 1 illegal: No proof kernel
N4N1K/B1QpbPPp/1Rrrn3/8/1Nk5/RrnN1N2/3r1qbq/B2b3B b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 e5 Ke4 a5 g4 d3 c4 d2 b4 h3 f4 a4 f6 Ke6 f7 h2 b6 a3 f5+ Kd6 c5+ Kc6 b5+ Kb7 f6 a2 Kf5 e4 g5 e3 g6 e2 Nf3 e1R Qc2 d1B Na3 Na6 c6+ Kb8 b7 Ka7 b8N Kb6 c7 Ra7 Bb2 Be2 Nc4+ Kc5 b6 Bd1 b7 Be7 f8N Re3 f7 Nf6 Bg2 Nd5 Nc6 Nc3 b8B Bb7 c8N Nc7 Nb4 Ra6 N8b6 Ne6 Na8 Rd6 Nce5 Qb6 Ned3+ Kc4 Ba7 Qd4 Rf1 h1Q Rb1 Qhh4 Bh1 Qh2 Ba1 Qdh4 Rb3 Q4f2 Ra3 Re2 Re1 Rd2 Re5 Rg8 Rb5 Rc6 Rb6 Rg7 Bb2 a1R Qc1 Rb1 Ba1 Bc5 Kf6 Rd6 Ke7 Rg8 g7 Rb3 Ng6 Rc8 Nf8 Rcc6 Ke8 Ra2 Qf4+ Rd4 Qd6 Rd2 Qc7 Rdd6 Ng6 Nd8 Kf8 Ne6+ Kg8 Rd5 Qc8 Be7 Qc7 Rd6 Kh8 Rc5 Ng5 Bg2 Nf8 Rcc6 Nf3
3NRrnn/2P5/5k2/1q3BBB/1B1nRBpK/bbqP3N/1p1R1n1r/6rQ b - - 0 1 illegal: No proof kernel
1Bb1NN1n/2pqR3/P2r2N1/2R2Qbq/b5BB/2Kn2q1/5pPq/3kr1BB b - - 0 1 illegal: Other
2RR1b1r/2pN1n2/p3RQK1/N2B1NP1/N2rP2q/1n5k/bq2q2b/4BNq1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kh5 h6 g4 a6 d4 c3 b4 c2 g6 f3 g7 f4 g5 Kf5 d5 f2 d6 f3 b6 Be6 d7 Be7 b7 Qf8 d8R Bc5 b5 Nc6 b8N Ba2 b6 Nd4 b7 Qf6 Bd2 c1B Nc3 Nb3 Nc6 Bf8 Be1 Bf4 b8N Bh2 Na4 Qb2 Bg2 f1Q Nd7 f2 Nf3 Qg1 Nd2 f1Q Na5 Rb8 e3 Rb4 Bd5 Rd4 e4+ Kf4 Rb1 Qe2+ Kg6 Kg4 Nf1 h5 Rc8 Nh6 g8N h4 Ne7 h3 Nf5 Nf7 Qd3 Bhd6 Qc3 h2 Rd1 Bf4 Qc6 Kh3 Qb6 Qgg4 Qf6 Qh4 Rc1 Bg3 Rc6 Bf4 Rg1 h1Q Re6 Bh2 Rg2 Qb5 Rc2 Qe2 Rc4 Qhg2 Rb4 Qg1 Rbb8 Qc1 Rd8 Qcb2 Rbc8
b1n2b1r/1P1Q1nRn/1p6/r2B1B2/1q2N1BK/B4r1p/RP1B2q1/kN3R1r b - - 0 1 illegal: No possible last move
1r2bnN1/qPRB2B1/Pb1R2NQ/r5pK/1B3r2/4q3/nN1B1nBp/3k3r b - - 0 1 illegal: No proof kernel
1q1R1BQ1/1P2Pqnr/3b1p2/1R2N1R1/k1r1B3/Rp1bN3/R3r3/q2qBK1n b - - 0 1 illegal: No possible last move
1N1b2K1/1pR3NR/1nQ3b1/RBp3R1/8/nP1RbqPq/Bn3rb1/3kB2r b - - 0 1 legal: proof: f4 e5 a4 exf4 c4 g5 h4 d5 cxd5 Na6 a5 Nb4 a6 Nxa6 hxg5 Nb4 Ra5 Na2 Ra4 Nc3 Ra1 Na2 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 d6 c5 d7 f5 Ke6 a5 Kf7 h4 d5 f3 g3 h3 d6 f2 g6 a4 g7 a3 Bf4 h2 Qe1 Kb3 e4 Kc2 e5 Nc3 e6 a2 e7 Na4 e8B Qh4 d8R Be7 d7 Nf6 g8R Nd5 Nd2 Qh3 Ne2 Ndb6 Ne4 Bf6 b3 Nb2 Bd2 f4 Ng5 f3 Ne6 Rh5 Bg2 f1Q Rg5 f2 Ng7 Bd4 Kg8 Be3 Bc6 Qfg2 Bb4 f1N Bb5 Nd2 Bg6+ Qe4 Rf8 Ndc4 d8R Na3 Rd3 Bf5 Rc8 Qf3 Bc3 Ra4 Rc7 Rf4 Qg1 Be4 Qg2 Rhh4 Bh7 Bg6 Be1 Rh5 Rad1 a1B R1d2+ Kb1 Nd4 Kc1 Nc6 Rf6 Nb8 Rh6 Rg1 h1B Rdd7 Rh5 R2d3 Rf4 Qh2 Bg2 Qh1 Nd1 Rf1 Bf6 Rf2 Bd8 Ra2 Nb2 Ra1+ Nb1 Ra5 Na3 Re7 Qe2 Red7 Rf2 Rf7 Bf1 Qc6 Qf3 Rc3+ Kd1 Rfe7 Be8 Bb1 Bg2 Ba2 Bg6 Rf7 Qc8 Rfe7 Rh1 Rf7 Qh3 Rd3+ Kc2 Nf5 Kc1 Rh7 Kc2 Ng7 Kc1 Bd2+ Kd1 Be1+
B1qQn1r1/p6P/P1rR1B1N/Nb2b2n/Bp1nqrN1/2N1k3/8/1Rr1N1K1 b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Kd7 e4 f5 d4 b5 a4 g5 h4 b4 h5 f3 h6 f4 c6+ Kd6 c7 Be7 a5 Bb7 c8B Nc6 a6 Nf6 h7 Rg8 Bd7 Ne8 Bb2 Qc8 Bg2 Bf6 Nc3 Be5 Rb1 g3+ Kf1 g4 Rh6+ Rg6 Qd3 f2 Nf3 Rb8 Ne1 Rf6 Bf3 Rg6 Kg2 f1N Kg1 g2 Qd2 Ng3 Ba1 Nd8 Ba4 Ne6 Qd3 Bc6 Qd2 Ke7 d6+ Kf6 d5 Kg5 d7 Nh5 d8N Nd4 d6 Bb5 d7 Rc6 Nb7 Ra8 d8N Rb8 Kf2 g1R Na5 Rh1 Kg2 g3 Rd6 Rh4 Kg1 g2 Kf2 g1R Bh1 Kg4 Nf7 Ra8 Nh6+ Kg5 Qd3 f3 Qd1 Kf4 Bb2 Bh8 e5 Rb8 e6 Be5 Qd3 Rg8 Kf1 f2 e7 Rbb6 Ba1 Rc5 Ba8 Rbc6 Bb2 Rc4 Qd1 Ke3 Ba1 Rf4 Bb2 Neg7 e8N R4c5+ Kg2 f1Q+ Kh2 Qe2+ Kg1 Qf3 Nf6 Qe4 Ba1 Nc2 Qd5 Nd4 Bb2 Ne8+ Nfg4+ Kd2 Re6 Rc4 Qd8 R4c5 Rd6 Rc4 Ne2 Rc1 Nc3 Bg7 Nh2 Ke3 Na2 Nc2 Be5 Nd4 N2g4+ Ke2 Nc3+ Kd2 Bf6 Bh8 Be7 Bg7 Nf2 Ke3 Bh4 Be5+ Bg5 Rh8 Bf6 Rg8+ Nfg4+
4nqR1/pP3pPb/8/rBBQ1B2/2n2k1r/1B1nR2N/q3B1nb/1Rr1N2K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 e4 Kd6 g4 Ke5 Kg2 h5 c4 d5 b4 h4 g6 d3 g5 d4 b6 d2 b7 d3 b5 Rh5 c5 Qe7 b6 Qd8 c6 Na6 b8R Bf5 c7 Nc5 c8B Nf6 b7 Ne8 g7 Bh7 g8B Bd6 Rh3 f3+ Kh1 f2 g6 Kf4 Re3 h3 g7 h2 Be2 f1Q e5 Qf2 e6 Be5 Qb3 d1N e7 d2 Be6 Nd3 Na3 N1b2 Qd5 d1N Rb1 Nc4 Nc2 Qd6 Rd8 Rc8 Ba3 Rh4 Bb4 Rc5 Ne1 Ra5 Bc5 Qb8 Bh5 Qa2 Be2 Nf6 e8B Qc8 Bc6 Ne8 Bb5 Bd6 Rg3 Nde3 Bf5 Ng2 Re3 Qe6 Ra8 Qe7 Be6 Qf8 Rc8 Be4 Bh7 Bb8 Bhf5 Bd6 Bfg4 Bh7 Bgf5 Na3 Qd4+ Kg5 Bfg4 Nf6 Bc6 Qe7 Bd1 Ngf4 Bdb3 Nc4 Rg8 Ne8 Bef5 Qf8 Bb5 Ne2 Kg2 h1R Qd5 Bh2 Nc2 Nef4+ Kf3 Kf6 Nh3 Rd1 Ne1 Rc1 Ng1 Kg5 Bh5 Ne2 Kg2 Nef4+ Kh1 Ng2 Be2 Kf4 Nh3+
1r1qQ2K/2rNN1r1/rkp1b2b/2NnNR1B/5p1R/1P1r1n1r/2R4P/2B1N3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 g5 d4 f5 d6 a5 b6 Kc6 b7 f3 Kg3 a4 d5+ Kc5 b3 c6 d7 a3 e5 a2 d6 f2 e6 Bh6 e7 Qb6 e8R Ra7 d8N Ra3 d7 Ra6 Nf7 Qd8 Ne5 Ne7 Be2 f1R Nc3 Nd5 Ngf3 Kb6 Ne1 Rf2 Bf3 Rd2 Rf1 Rd3 Qe2 Rg8 Rb1 a1R Rb2 Ra7 Rd2 R1a6 Rc2 Rg7 Rh8 Rh7 Kg2 g3 Kh3 g2 Rf2 g1R Qe4 Qe8 d8N g4+ Kh4 g3 Bh5 g2 Ne6 Nd7 b8N Rc7 Nc5 Rf1 Rf4 g1R Rf8 Rh8 Rg4 f4 Rf5 Rff3 Qe3 Bg7 Kg5 Qd8+ Kg6 Bh6 Qe4 Re8 Kh7 Rh3 Rh4 Rg2 Rf8 Rg7+ Kh8 N7f6 Qg6 Nh7 Qf7 Ng5 Nbd7+ Ka7 Qg8 Nf3 Rf5 Rf8 Nb6 Be6 Nbd7 Ne3 Nd5 Re8 Ne7 Nd5 Nf6 Kb6 Qf8 Qd7 Qg8 Rb8 Qe8 Qd8 Nfd7+
3Rn2r/k1b3n1/2B2rq1/1p4p1/2bK1NR1/n4RP1/bPN3NN/nb1NQ2B b - - 0 1 illegal: No extended proof kernel
2B1Bnn1/5P1R/3p1R1n/1NbQr2n/q1RPnpbK/7N/q6q/R2R1kB1 b - - 0 1 illegal: No possible last move, all moves rejected
1qRNK2B/2r4p/3pN3/4qk1P/N3b1NN/3PB3/nq1Q1rnn/nR3Rn1 b - - 1 2 legal: proof: b4 g5 a4 e5 f4 gxf4 c4 b5 axb5 Qg5 e3 Qd8 Be2 Bc5 Bf3 Bb6 c5 e4 cxb6 exf3 Kf2 Ke7 g4 Ke6 h4 c5 g5 a5 e4 f5 d3 a4 g6 c4 b7 c3 e5 c2 b6 a3 h5 a2 b5 Ra7 g7 Na6 b8B Nh6 g8N Nb4 b7 Nf7 b6 Ng5 Be3 c1Q Nc3 Qb2+ Qd2 d6 Nh6 Rg8 Rb1 a1N Na4 Na2 Ng4 Rf8 Bc7 Bd7 b8N Bc6 b7 Be4 Nc6 Qb8 Bcb6 Rf7 Bbd4 Nh3+ Kf1 f2 Ke2 f1N Nf3 Rc7 Nh4 Nh2 Rhf1 Ng1+ Kf2 f3 Kg3 f2 Kf4 Ra5 Kg5 f4 Bc3 f3 Nd8+ Kd7 Kf6 Ra7 Rfc1 f1Q Kf7 Qe2 Rf1 f2 Kf8 Ra6 Bcd4 Rac6 Kf7 Rc2 Bc3 Qa8 b8R Qa7 Rc8 Qab8 Kf8 Qe1 Nc6 Ke6 Ke8 Qe2 Bcd4 Nhf3 Bc3 Ne1 Bcd4 Ng2 Nd8+ Kd5 e6 Qe1 e7 Qe2 Nc6 Ke6 Bh8 Qe5 Rfe1 f1N Red1 Nh2 Rf1 Qeb2 Nd8+ Kd5 Kf8 Qe5 e8N Qeb2 Ngf6+ Ke5 Ng7 Qe1 Ke8 Qg3 Qc1 Rf2 Nge6 Qg5 Qd2 Qf4 Nf3+ Kf5 Ng4 Qfe5 Nh4+
1N2KB2/4R1BB/1N1r3n/P2r2q1/1QB1p1b1/3pr1n1/k1N1P2B/1nr2Rqq b - - 0 1 legal: proof: g4 a5 d4 g5 b4 axb4 d5 f5 h3 Bh6 gxf5 g4 d6 Bg5 h4 cxd6 hxg5 d5 Be3 d4 Bd2 Ra4 Bc1 Ra8 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 b5 Kd6 e4 a4 h4 c4 b3 f4 g3 c5 b2 f6 d3 a5 h3 f5 d2 c6 g2 c7 h2 Qa4 b4 Nf3 g1Q Bh3 d1R+ Nd4 b3 Qb4 Nh6 Na3 b1N Nc2 b2 Bf4 Nc6 Bg4 Ra6 g6+ Ke8 g7 Kf7 Bh3 Rc1 Be5 Ne7+ Nc6 Qg8 Bf4 Qg5 Rd1 h1Q Bh2 Rb6 Rd5 Rh7 Re5 Rd1+ Kc5 d5 Kd6 d4 Bg4 Bd7 c8N d3 Kc7 Rc1 Nb8 Rd6 Re6 Nd2 Nb6 b1R Bh3 Rb2 Bg4 Nb1 Bh3 Nc6 Re8 Ne7 Kd8 Rh8 Qc3 Rb5 Qb4 Rbd5 Bg4 Qh7 Bh3 Qhg6 Bg4 Neg8 Re6 Ne7+ g8B+ Kf8 Bh7 Kf7+ Kc7 Rg8 Bh3 Rg7 Kd8 Qgg1 Bg4 Qh5 Bh3 Rg3 Re5 Re3 Re6 Kf8 f7 Qhg5 Re5 Kg7 f8B+ Kf7 f6 Nef5 Bg7 Ng3 Bg8+ Kg6 Re7 Bg4+ Ke8 Kf5 f7 Kf4 f8B Kf5 Rf7+ Ke6 Bh7 Rc5 N6d7 Kd5 Re7 Rb5 Qd2 Kc4 Nb6+ Kb3 Qe1 Bc8 Be6+ Rbd5 Bf7 Bg4 Bfg8 Na3 Rb1+ Ka2 Qb4 Rd1 Rc1 Nb1 Be6 Rd2 Rf1 Rd1 Bd7 Re1 Bb5 Rc1 Bc4#
1B2k1RR/KPb1bRrN/n1r5/5B2/1q2p1B1/R3Nr2/2qpP1R1/qbrQ4 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Ra4 Na6 Ra1 Nc5 Kd2 Ne4+ Ke1 fxg4 Ra5 g3 Ra2 g4 Ra1 Ng5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 e5 Kd3 h5 Kc4 a5 b4 e4 f4 g2 g6 g3 b6 d5+ Kb5 d3 c4 d4 b7 a4 b8R d2 g7 d3 f5 h4 f6 h3 c5 a3 c6 h2 c7 a2 Kb6 Ba6 b5 Ne7 g8R Rh3 Nc3 Nc6 Nd5 Nb4 Nf3 g1B+ Nd4 g2 Ne3 Rf3 Ne6 Bf2 Rg7 g1R Rg2 Be7 Nf8 Bg3 Rb7 Qb8 c8B Be5 Bg4 B5d6 Bb2 Bf4 Be5 Qd6+ Ka5 Rc8 b6 Rc6 Rd7 Bc4 b7 Na6 Bf5 Qd4 Bb8 Bb3 Rc7 Bc2 Bg4 Bb1 Kb5 Rc5+ Kb6 Qb4+ Ka7 Rc6 Rd7 Bc7 Bf5 Bed8 Rh7 Be7 Rh8 Bf4 Rhg8 Bc7 f7+ Kd8 Rf2 Rg7 Rg1 h1R B1h3 Nc5 Rff1 Na6 Rg2 Rg1 Bhg4 Rh1 Qe1 d1Q Qd2 Qc2 Qd1 Rf4 Rf3 d2 Rh3 Rf3 Rhh8 Qd6 Ne6+ Kd7 f8R Qb4 Rf7 Re1 Nf8+ Ke8 Qc1 Qcc3 Qc2 Rc1 Qb3 Bd3 Qd1 Qc2 Rb1 a1Q Rb3 Qcc3 Ra3 Bb1 Rh5 Qcb2 Rhh8 Qc2 Nh7+
1Rb1B3/q1p1q1n1/3b3B/P4R2/K1Rbp1k1/1NP1RrrR/1QN1Nr2/3bq3 b - - 0 1 legal: proof: e4 g5 b4 a5 h4 axb4 hxg5 d5 f4 dxe4 g4 Qd7 g6 Kd8 f5 Nc6 g5 Ne5 g7 Ng6 fxg6 Ke8 Bd3 Qd5 Bf1 Qd8 d4 Kd7 Kd2 Ke6 a4 Kf5 d5 h5 c3 b5 Kc2 e5 Kb3 h4 a5 e3 d6 h3 d7 e2 Bd2 e1B Bg2 h2 Na3 e4 Nc2 Bd6 Ra4 Rh3 Bf1 Nh6 g8N Rf3 g7 Kg4 g6 f5 Nd4 f4 Nc6 Bf2 Qb1 Qe7 d8R Bd4 Rf8 Nf5 Ne2 Rg3 Qc2 f3 Bh6 f2 Qb2 Rf3 Bg2 f1R Nf6+ Kh4 g8R Ng7 Rh8 R1f2 Re1 h1Q Nd5 Kg4 Rf5 Qg1 Bf1 Rg3 Nb6 Rff3 Nd7 Qf2 Nc5 Qe3 Ka2 b3+ Ka3 Rb8 Rc4 b4+ Ka4 Qg1 Qc1 b2 Nb3 b1B Qb2 Bc2 Rh7 Bd1 Rh8 Ne8 g7 Qe3 g8R+ Ng7 Bf4 Rb5 Rh3 Re5 Bh6 Qg1 Rf6 Ref5 Re8 Rf2 Rff8 R5f3 Rf5 Bf6 Ncd4 Bfe5 Nc2 Bd4 Nc5 b3 Rg8 Ba6 Rb8 Bc8 Qa2 b2 Nb3 b1Q Qb2 Qf8 Nf4 Qc1 Re3 Qe7 Bd3 Qe1 Ne2 Qcd2 Rcb4 Qc1 Bb5 Qcd2 Bc6 Qd3 Bd7 Qa6 Be8 Qa7 Rc4
n3Br1n/Pb2r3/1NB1p1rB/k1prb1RN/3BQ1N1/2n4K/b1P3B1/2R2r2 b - - 0 1 legal: proof: e4 g5 b4 a5 h4 axb4 hxg5 d5 f4 dxe4 g4 Qd7 g6 Kd8 f5 Bg7 g5 Bf8 g7 Qc6 Bc4 Ke8 Bf1 Qg6 fxg6 Bh3 Qe2 Bf5 Qd1 Bc8 Kf2 Kd8 Kg2 h5 a4 b5 d4 c5 a5 Kc7 d5 f5 a6 Kb6 d6 f4 d7 h4 a7 h3+ Kh2 f3 Qe1 e3 Qd2 b3 Ra5 e2 Nc3 e1R Kg3 f2 Ra4 h2 Qd5 b4 Nf3 b2 Qe4 b1N Bg2 f1R Ne5 b3 Ng4 Na6 d8B+ Nc7 Nd5+ Kb5 Rd4 b2 Nb6 Bb7 Rd5 Nh6 g8N Nc3 g7 b1B g6 Ka5 Kh3 Nf7+ Bh6 Ba2 N8f6 Rg8 Nh5 Nh8 Rg5 e6 Bf6 Rd1 Bd4 Bd6 Rg1 Rgf8 g8B Rae8 g7 Na8 Bh7 Re7 g8B Be5 Bf7 Rd2 Be8 h1R+ Nh2 R1f6 Rc1 Rhf1 Ng4 Rg6 Bc6 Rdd1 Bg8 Rd2 Bf7 Rdd1 Bfe8 Rd2 Bg1 Rd5 Bd4
5q2/bp5n/r6B/p1Q2P1r/1Pnr1BRN/1nK1NB1k/1B2r2r/2RBN1r1 b - - 0 1 illegal: No proof kernel
2N2nq1/1pn3Np/BP1R3N/Br2R1Nn/nk4q1/2r4b/1n2nP2/BNQ1K3 b - - 0 1 illegal: No possible last move
1BKn1b1B/1p1B1k2/1Q2b3/3qbn2/NP4bB/1N1rRp2/2RB1N1P/1b3b1q b - - 0 1 illegal: No proof kernel
1q5r/nb3BN1/1n1Prp2/NQ2Br2/kb1K1pq1/3R1NP1/1B1p1N2/qRN5 b - - 0 1 illegal: No proof kernel
qq1b4/2r1BK1R/1np5/P2nBbqk/3NprRB/2N1P3/6np/1QRBB3 b - - 0 1 legal: proof: g4 a5 c4 g5 b4 d5 cxd5 axb4 h4 f5 hxg5 fxg4 a4 Kf7 f4 Kg6 Kf2 h5 Ke3 e5 Ke4 b5 d4 h4 e3 g3 d6 g2 Kd5 h3 d7 b3 Ke6 h2 a5 e4 f5+ Kg7 f6+ Kg6 d5 c6 d6 b2 f7 b4 Ne2 g1Q Bd2 b3 Nd4 Nh6 Be2 Ra7 Nc3 b1Q Be1 Be7 f8B b2 Bg7 Rf8 Be5 Rf4 Bg4 Qg2 Rg1 Rc7 Qc1 Qh8 Bd1 Nf5 Qc2 Nh4 Qd3 Qf3 Rg4 Kh5 g6 Qg3 g7 Ng2 g8R Bd8 R8g7 Qh4 Qb5 Qg5 Qf1 Qc2 Rc1 b1N Qd3 Qb2 Qc2 Qb7 Qb2 Qa8 Qb4 Na6 Qb7 Na3 Qb1 Bf6 Kf7 Nb4 Qd3 Nd5 Qb1 Ne7 d8B Nc4 d7 Nd5 Be7 Ncb6 d8B Bd7 Bb4 Bf5+ Bde7 Qhd8 Bh4 Qdb8 Na2 Ra7 Bbe1 Rc7 Nc3 Nd7 Bc5 Bd8 Be7 N7b6 Rh7+
n1n2NRN/bB1r2b1/2p4p/1Q2q1P1/N4k2/2p1q2P/rRK1N1q1/1N2BRb1 b - - 0 1 illegal: No possible last move
2kB1R1q/rnB1N3/1P1q2R1/R3p2r/4BQ1b/2R5/n1P1pn1p/K3RbNb b - - 0 1 legal: proof: e4 c5 d4 g5 dxc5 f5 h4 fxe4 a4 b5 axb5 gxh4 Kd2 a5 Kc3 d5 g4 Kd7 f4 h5 b4 h3 Kb2 h4 f5 h2 f6 h3 f7 e3 b6 a4 g5 d4 g6 d3 g7 e2 b5 a3+ Ka2 d2 b7 Nc6 b8B Rh5 b6 Nf6 g8R Na5 Rg3 Nd5 Rg6 Nb7 Nc3 Ra7 Bg2 Nb4+ Kb1 e5 Nd5 Be7 f8R Bh4 Qf1 d1N Qf4 Nf2 Be4 Na2 Ne7 Qe8 c6+ Kd8 Rf7 Qh8 Bd2 Be6 c7+ Kd7 c8R Bd5 Bd3 Bg2 Rc3 Bf1 Be4 Kd8 Nc6+ Kc8 Bc7 Qd8 Rf8 Qe8 Nf3 Qd8 Rhg1 h1B Be3 h2 Bc5 Nb4 Be7 a2+ Kb2 Qe8 Bed8 Qe6 Re1 Qf6 R1g3 Qh8 Ng1 a1Q+ Kb3 Na2 Ne7+ Kd7 Rc5 Qc1 Rgc3 Qd2 Kb2 Qd4 Ka1 Qd6 Nd5 Kc8 Rb5 Bhg2 Ra5 Bh1 Ne7+
8/r2B2r1/pn3q2/1r1ppNR1/qRk1BbBN/P1PR4/3Q3n/n1BbK1B1 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f6 bxc5 Qa5+ Qd2 Qb6 Qd1 Qd8 h4 g5 e4 gxh4 e6 Ke7 e5 fxe5 Bg5+ Ke8 Be3 Be7 Bc1 Bf8 f4 Ke7 g4 d5 a3 h5 f5 b5 c3 a6 c6 Kd6 g5 Kc5 f6 h3 c7 h2 g6 h4 f7 h3 g7 b4 e7 b3 e8B b2 Bc4 Nd7 Ke2 Ngf6 g8B Ng4 Nd2 b1N Bd3 Ra7 Ngf3 Rh7 Nh4 Bh6 Ndf3 Bf4 Be4 Rg7 f8B+ Kc4 Nd4 Nd2 Rg1 h1Q Bc5 h2 Ke1 Nb3 Qd2 Nb6 Bd7 Qf6 Bge6 Qg2 Ra2 h1R Ndf5 Nh2 Rb2 Qf3 Rf1 Qg4 Bg1 Na1 Rf3 Qe7 Rd3 Qf6 Be8 Bd7 c8R+ Bc6 Ra8 Ba4 B8d7 Bd1 Rh8 Qgg6 Rh5 Qe8 Bc8 Qb5 Bcd7 Qa4 Rb1 Nf1 Rg5 Rh2 Qe3 Rb2 Qd2 Nh2 Nh6 Ra2 Bg4 Rb2 N6f5 Rb5 Rb4+
R1n4r/q1Q3q1/p3bP1B/bB2n3/r2nR1PK/2R2k2/2RpRN1p/1NB4q b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 Kf7 c4 Kf6 g4 Ke5 f4+ Ke4 Kf2 e5 f6 h5 f5 d5 b6 d3 b5 d2 c5 h3 Kg3 h4+ Kf2 h2 f7 h3 Kg3 d4 b7 d3 b6 Nd7 b8R Qe7 Qb3 d1Q c6 d2 Qc3 Qa4 c7 Qf6 b7 Bb4 f8B Ba5 Ba6 Qg7 f6 Ne7 Bb5 Qd4 Qc6+ Ke3 Ra4 e4 Rc4 Ne5 Rc2 Be6 Re8 Nc8 b8R Qc5 Nf3 Qb6 Ng5 Qd4 Rf1 h1Q Rf4 h2 Nh3 Qb6 Nf2 Qb7 Nd3 Ke2 Rc3 e3 Re4 a6 Bc5 Nb6 c8R Ned7 Ba4 Ba2 Rec4 Qa7 Rc2 Bb3 Rc7 Nc8 Rf4 Ba2 Ree4 Be6 Rf5 Ne5 Rf2+ Kd1 Bb6 e2 Be3 e1N Bh6 N1f3 Qc4 Nd4 Kh4 Nd6 Re8 Rb8 Rf8 Rb7 Ra8 Rb4 Bb5 Nc8 Qc6 Rc4 Qd7 Rb4 R7c3 Ra4 Qc7 Ne2 Nc5 Ke1 Rg2 Kf1 Nd3 Nd4 Rge2 Kg1 Nf2 Kg2 Rc5 Kf3 R5c3+
BN1rRRn1/1nb1q1rP/2R5/1p1B4/Pbnq1R1k/3RQp1p/N7/B1K4b b - - 0 1 illegal: No proof kernel
R2N4/Br2BpQp/N3B1Bq/p4nbk/1Bb1rn2/q2R2P1/1NK1P1r1/b7 b - - 0 1 illegal: No possible last move
1kbK1b1n/3PNNb1/5R2/p3rp1R/1P1NnqBr/q1B3N1/2Nq1p2/1Q5B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 h5 d4 c5 g4 Kc7 b4 c4 e5 a6 e6 c3 g5 h3 d6+ Kb7 g6 h4 g7 c2 e7 h2 e8B h3 d5 Ne7 g8N Qd7 b6 Ra7 Bh5 Qe8 Bd2 c1B Bg2 Ba3 Ne2 Bc1 Na3 Ra8 Ng3 Bb2 Bg4 Qd7 Qb1 Ng6 Ne7 Qa4 Ra2 Bbg7 Bc3 Nd7 Nc2 Nc5 Ra3 Rb8 Ra2 Ka8 b7+ Ka7 Ra3 Ne4 Ra2 Ra8 b8N Qb3 Ra5 Qa3 Nbc6+ Kb7 N6d4 Kb8 Rc5 Rh5 Rc6 Nh8 d7 Ra7 d8N Rc7 d6 a5 Ra6 Rc5 d7 Re5 Ke2 f3+ Kd3 Rh7 Kc4 Rh6 Rc1 h1Q Rf6 Qe1 Nf7 Qd2 Rh1 Qf4 Ne3 h2 Nec2 Re6 Kb5 Re5+ Kc6 Rh7 Rd1 h1Q Kb6 Qh2 Rh1 Qg1 Rh2 f2 Bh1 Qd1 Kc6 Qdd2 Rh4 Ka8 Kc7 Rh6 Kd8 Kb8 Rh5 Rh7 Rg5 Rh4 Rh5
1B1b4/2rPRB2/p2B1qP1/pq1n1pN1/3B4/nb3KRR/2N1rQ1r/3kq2B b - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 hxg5 b6 a5 bxa5 cxd5 Qf6 Rh5 Qd6 Rh1 Qd8 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 Kd4 d6 c5 g6 h5 g7 f5 d7 f3 b5 c4 g5 a6 e5 c3 e6 c2 g6 h4 e7 h3 e8R h2 b6 Qc7 d8B Nc6 b7 Qb6 b8B Nge7 g8B Na7 Qe1 Be6 Ra3 Nb5 Bdc7 Bb3 Nh3 Nd5 Ng5 Qf6 Bf7 Be7 Bd6 Bd8 Bg2 Kd3 Bb2 c1R Re7 Rc7 Bd4 Kc2 Rg1 Rh5 Bh1 Raa7 Kg3 f2 Kf3 f1Q+ Qf2 Kd1 Rg3 Rc2 d3 Rac7 Rh3 Re2 Rg3 Bc2 Rc3 Bb3 Na3 Rh3 Nc2 Na3 Be3 Rd2 d4 Qb5 Rd3 Rh7 Rc3 Re2 Rh3 Nb4 d5 Rh5 Bd4 Rh7 Bg2 h1Q Rce3 Qf1 Bh1 Qe1 Rh5 Qd2 B6c5 Nb1 d6 Rh8 d7 Qc3 Kg3 Qe1 Bd6 Nd5 Kg2 Na3 Rg3 Rh6 Kf3 Rh7 Rh4 Rh5 Rf4 Rh3 Rh4 Rh2 Rhh3
n2B1BN1/2NP2pr/Nb6/1RpqR3/p1PBb1B1/1q5B/2Q3b1/qkrnK3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 d5 e4 dxe4 d4 Ke7 b4 Ke6 c4 Kf5 h4 a5 d5 c5 e6 e3 d6 Ke4 d7 f5 b6 a4 e7 e2 e8B f4 b7 f3 b5 g3 h5 g2 b6 Ra5 h6 Nf6 h7 Be7 Na3 Nd5 Bg5 Rb5 Rb1 Rb4 Nh3 g1Q Nb5 Ne3 Bh5 Na6 b8B Nc7 b7 Qg2 Bg4 Na8 Be5 Qb6 b8B Bb7 Nc7 Bd8 Nf4 Rb5 Qd2 Nd1 Nd3 Bc6 Qc2 f2+ Kd2 Rb3 Bd4 Rc3 Rh5 Qb3 Rb2 Qf3 Bfh3 f1B Ke1 Bg2 Nb4+ Qd3 Nba6 Bd5 Ne6 Bb6 Bd8 Bb7 Nec7 Bd5 Qb1 Rc1 Qa2 Qf3 Re5+ Kd3 Rb1 Be4 Rb2 Qa3 Rb5 Qb3 Qb2 Qf7 Qa2 Qd5 Qb2 Rg8 h8N Re8 Ng6 Rh8 Ne7 Rh7 Qa3 Kc2 Ng8 Qb4+ Qc3+ Kb1 Ne6 Qb3 Bd6 Bd3 Bf8 Bde4 Kd2 Bef3 Nec7 e1Q+ Kd3 Qg1 Kd2 Be4 Ke2 Qf1+ Kd2 Qf6 Ke1 Rc2 Rh5 Qdf7 Bg1 Rc1 Qd2 Qfb2 Bd4 Qa1 Re5 Qd5 Qc2+
N7/n2p1kpn/1qRK1bB1/B3RR2/1pN2r2/1q1P1nrR/2R4P/1bQ2N1r b - - 0 1 illegal: No possible last move, all moves rejected
n1rN1RB1/p3PBq1/b1p1b2B/b1n1b3/5kbR/1p3B1N/1R3QP1/KBr5 b - - 0 1 illegal: No proof kernel
4Qb2/2nB2BK/B3bqR1/n1brN1pP/2RrB1p1/B2n2pP/1N6/k1n1N3 b - - 0 1 illegal: No proof kernel
2n1B3/2Rqr3/1Rr3b1/rPp1r1Nk/R2PQ2n/2p1R3/1bp1KbNB/4RN2 b - - 0 1 illegal: No proof kernel
NrN2bQb/1N2BN2/1Kbnr1BP/4p3/5Rq1/pRb1p1r1/2P5/B1nN2k1 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Ke3 Ke6 Kd4 Kf5 h4 a5 f4 g5 b4 d5 b6 g3 h5 g2 c6 e3 Kc5 Ke4 b5 g4 h6 a4 c7 d4 f5 g3 f6 a3 b7 Qd7 b6 Ra6 f7 Qg4 Bb2 Nf6 Rh4 Ne8 Nh3 Bd7 c8N Nc6 b8N g1B b7 Na5 Nc6 g2 b8N Nd6 Nd8 Bc6 Nb7 e6 Qd2 Kf3 Nc3 Bh2 Bc4 g1B Nd7 Be5 Nd1 d3 Ra2 Bf2 Ba1 Kg2 Ng5 Kg1 Rb2 Be1 Rb3 Beg7 Qc3 d2 Bd3 e5 Bg6 Rg8 Qb4 Bh8 Qc4 Ra8 Ndb6 Rb8 Na8 Rg7 Nb2 d1R Kb6 Bc3 Qe6 Rf1 Nd1 Rf6 Qd5 Re6 Qc4 Be7 f8B Rg8 Nf7 Rg7 Rb5 Nb3 Qd5 Nc1 Rb3 Qf3 Rd4 Qg4 Rf4 Rg8 Bg7 Bf8 Bf6 Qf3 Be7 Qh5 Bh7 Rg3 Bg6 Qg4 Nd8 Rf6 Qg8 Re6 Nf7
1R4K1/1nN5/1kBPRB2/2pr2np/1Rp3rQ/1n1R1bPq/R2N1n2/2rB2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 f5 e4 a5 b4 h5 d4 c5 e5 Kc7 d5 a4 e6 a3 e7 a2 e8B Nc6 d6+ Kb6 g6 Qh4 g7 Be6 g3 Bd7 Na3 Rc8 Be2 Nd8 Qd4 Nb7 Bd1 Qh3 Bb2 Nf6 g8R Bh6 Rg6 Ne4 Re6 Rg8 Rh2 Ra8 Rd2 Rg5 Rd3 Nf2 Bc3 Bc8 Bc6 Bg7 Qe4 Bd4 Bb2 Be3 Bf6 Bd7 Qd4 Rag8 Qe4 Rg4 Qd4 R8g5 Qe4 Ka7 b6+ Ka6 b5+ Ka5 Rc1 a1N Rc2 Nb3 Ra2 Bc8 Ke2 Bd4 Nf3 Be3 Nd2 f3+ Ke1 f4 Qd4 Nd8 b7 Rd5 b8R Bb7 b6 Ba8 b7 Kb6 Qe4 Bd4 Rc8 Be3 b8R+ Nb7 Rc7 Nh1 Rg7 f2+ Ke2 f1N Kf3 Bg1 Nb5 Nf2 Nc7 Nh2+ Ke2 f3+ Ke3 Rg6 Qh4 Rgg5 Kf4 Rg6 Re5 Rg4+ Kf5 Ne4 Ke6 f2 Kf7 f1R Ra5 Nf3 Ra2 Nf2 Kg8 Ng5 Rge7 Re1 Re2 Rf1 R7e6 Re1 Ne4 Rf1 Reb2 Re1 Nd2 Rf1 Be2 Rc1 Bd1 Re5 Rf8 Na5 Ra4 Rge4 Rba2 Rg4 Bd7 Bf3 Bc6 Nb7 Rb8 Rd5 Rb4+
2rrqNN1/3b2bB/p1P2R1B/3R2NP/B2pnkpb/1B1B1n1r/1b6/1Q1K4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 e4 Ke7 b4 Ke6 h4 f5 c4 d5 c6 g5 h5 a6 b5 f4 b6 a3 c5 g3 b7 g2 c7 a2 Bd3 g4 Nc3 d4 Nf3 g1B Ng5+ Kd7 e6+ Ke7 e5 f3 Nd5+ Ke8 e7 Kd7 e6+ Kc6 e8B+ Bd7 c8B Nf6 e7 Bg7 Bf7 Ne4 Nf6 Qe8 Ng8 f2+ Ke2 f1R Bb3 Rf6 Rh3 Rf7 Rf3 Bf2 Rf6+ Kc7 Be3 Bh4 Qb1 Nc6 b8N Ne5 Kd1 Nf3 Bb7 Rf8 Bc6 Rf7 Bca4 Rf8 c6 Rf7 Ne6+ Kd6 Bh6 Ke5 Ng5 Rf8 Rd6 Kf4 Rd5 Be6 Nd7 Rc8 Bf1 Rf5 Nf8 Bd7 Bd3 Rf7 Qc2 Rf6 Rc1 a1B Qb1 Bc3 Rc2 Bb2 Rf2 Qf7 e8B Qe6 Bg6 Qe8 Ra5 Rf5 Rf1 Rc5 Bf5 Rc2 Bh7 Rh2 Rb5 Rh3 Rd5 Qd8 Qc1+ Kg3 Nf6 Nfd2 Ng6 Rg8 Rf4 Nf3 Qb1 Qe7 Rff5 Rgd8 Ng8 Qf7 Nf8 Qe8 Rfe5 Kf4 Re6 Nc5 Red6 Ne4 Rf6+
2b2K1n/2R2Bnp/2pp1NP1/N1N1RQq1/k2n2Bb/1NPr4/N4rb1/1Rb5 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 e4 Ke7 e6 f6 e5 Ba6 Bf4 Bc8 Bg3 Ke8 e7 Kf7 e6+ Kg7 Be5 fxe5 Qe2 Kg6 Qd1 Kf6 Ke2 a5 Ke3 a4 Ke4 h3 Kd5 e4 e8N+ Ke7 f4 a3 b4 a2 g4 h2 b6 e3 f5 d6 b7 e2 g5 e1N c3 Ra3 b5 Ra5 g6 Na6 b8R Nf3 Ne2 Nh6 Bh3 Bg7 f6+ Kf8 f7 Ke7 f8N Ng1 Nd7 Bd4 Qd3 Rf8 Nc1 Rf2 Qf5 Ne2 Rb7 Nf7 Bg4 Nh8 Nc5 Bf6 b6 Bh4 Nf6 Nd4 Re1 h1B+ Re4 Bg2 Nd2 Rb5 Rb1 a1B Na2 Bb2 Nb3 Bc1 Ra7 Ra5 b7 Ra4 b8N Rc4 Nb7 Nc5 N7a5 Ra4 Na6 Rb4 Nh5 Ke8 e7 Nce6 Nac5 Ng7 Na1 Rbb2 N1b3 Rf3 Re5 Rbf2 Ne6 Kd7 e8B+ Ke7 Bf7 Kd7 Rb7 Qg5 Nf6+ Ke7 Nec5+ Kd8 Rb4 c6+ Ke4 Kc7 Rb8 Bd7 Rc8+ Kb6 Rc7 Kb5 Nh5 Qe7 Nf6 Bc8 Ra1 Rd2 Rb1 Rfd3+ Kf4 Be1 Kg5 Bh4+ Kh6 Qd8 Ne6+ Ka4 Nec5+ Ka3 Qf1 Nh5 Ne8 Qf6 Qf4 Qf5 Nf6 Rf2 Ncd7 Ka4 Qg5 Nf4 Kg7 Nh5+ Kf8 Ng7 Qh5 Qf4 Qf5 Qg5 Ndc5+
1B6/N4np1/1pKbB3/R1Q1q1rb/2B1B1Np/1P2B1b1/R3k2P/2rbr1nR b - - 0 1 illegal: No possible last move
4r3/2rp1p2/2Bn1bk1/2Nq2P1/2nNBP2/p3Qnb1/1B1N1RN1/1NK1Rbb1 b - - 0 1 legal: proof: h4 b5 d4 g5 hxg5 c5 a4 cxd4 e3 dxe3 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 g4 a5 c4 e5 b4 h5 f4 e2 Kd2 h4 g6 h3 b6 h2 b5 e4 c5 a4 b7 a3 b6 Rh5 g7 Nf6 g8N Bh6 c6 Bg5 c7 Kf8 Nf3 Kg7 Bg2 Nc6 b8N Nd5 b7 Ne5 Nh6 Ne3 Na6 Kg6 b8N Bf6 Re1 h1N Nb4 Ng3 Bb2 Ba6 c8B Qa5 Kc1 N3c4 Nc2 e3 Nf5 Ne4 Ra2 Qd5 Qd2 Ned6 Bb7 Ra7 g5 Rh8 Bh1 Re8 Bc6 Rc7 Qc3 Bb5 Nfd2 Ba6 Be4 Nf3 Rd1 Bb5 Na6 e1B Nc5 e2 Qe3 Bf2 Ne1 Bg1 Ng2 Ba6 Rf1 e1B Ra1 Bg3 Rf2 Bb5 Kd1 Bd4 Nc3 Nb6 Rc1 Bf1 Ncb1 Bh8 Kc2 Bc3 Re1 Nbc4 Kc1 Bf6 Nd4+
1NNb2Nq/N1P1bRrk/2bbn2B/1N2r3/Kn1B1p2/2P1p3/5Q1p/1B2R2r b - - 0 1 illegal: No proof kernel
R1k4K/2p2b1R/pBPQb3/n3B2b/N1Rbrp1n/1n1B1P2/1N1r3R/q2R4 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 gxh4 d4 e5 dxe5 dxe4 Ke2 f5 Ke3 h5 Kf4 a6 b4 h3 c4 e3 g4 h2 e6 h4 Ke5 f4 b6 e2 g5 e1N c5 h3 c6 Be7 b7 Ng2 b5 Ne1 b6 Bd7 g6 Rh4 g7 Bc8 Bb2 Qd2 Ne2 Kd8 Nc1 Qd7 Nc3 Nc2 Qd6 Nh6 Na4 Ne3 Bd3 Nhf5 g8R+ Bf8 Kf6 Nc4 Rg4 Na5 Be5 Bg7+ Kg6 Rh8 Rh4 Re8 Kh7 Re7 Rd1 h1B Ra2 h2 Rc2 Be4 Rc4 h1B Rh2 Bhf3 Kg8 Bh5 f3 Bd5 Kh7 Rf7 Kg8 Nh4 e7+ Ke8 Kh7 Qf5+ Kg8 Nd7 b8B Qf6 b7 Nc5 Ba7 Ncb3 Bb6 Bce6 Kh7 Rc8 b8R Rd8 Rb7 Rf8 Ra7 Bef7 Bf1 Bde6 Nd3 Rd7 Ndb2 Rg8 Qa3 Rd2 Bd3 Bh8 Bd6 Qc3 Be5 Rg1 Qb4 Re1 Qd6 Bg7 Rh1 Re4 Rh2 Bh6 Kh8 Qc1 Nc5 Qa1 Nca4 Bg7+ Kh7 Bh6 Bg7 Bfg6+ Kh8 Bg5 Bg1 Bf6 Bb6 Kf7 e8R Bc3 Be5 Bd4 Re7+ Kf8 Rg7+ Ke8 Qb4 Kd8 Qd6+ Kc8 Rh7 Bgf7 Ra8#
BBn4K/1Prp1bB1/4B1BN/5r1Q/nR1b2q1/RrNp1k1p/4nPn1/3R4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 e5 b4 a5 g4 h5 c4 a4 c5 a3 c6 h3 b6 a2 b7 h2 c7 h4 b5 h3 b6 Ra5 Bh6 Ne7 Nf3 Na6 b8B Bg7 Nh4 Qg8 Nc3 d3 Bg2 Rd5 Re1 Bb7 c8B Bc6 Bb7 h1N Ba8 Nc8 b7 Bb5 Qe2 Bc4 Red1 Rc5 Qf3 Bf7 Qe2 Rc7 g5+ Ke7 f6+ Ke6 g6 Ng3+ Kf3 e4+ Kf4 e3 Kg5 Ke5 Nf5 Rh7 Qh5 e2 Be4 Bh8 Bf8 e1N g7 Ne2 Nh6 Nc5 Bg6 Kd4 Kf5 Na4 Kg5 Ng2 Kf5 Bb3 f7 Bc4 Kf6 Be6 Rab1 a1R Rb3 Rb1 Ra3 Bc4 Be7 Rb3 f8R Be6 Re8 Bc4 Bf8 Bf7 Re5 Be8 Rg5 Qc4 Rb5 Bf7 Kg5 Qb4 g8B Rg7 Kf6 Qc4 Bf5 Rg5+ Bg7 Qb4 Be6 Qc4 Rb4 Rd5 Nb1 Ke4 Nc3+ Kf4 Bh7 Qd4+ Qe5+ Kf3 Bg6 Qg4 Qg5 Na7 Qh5 Rf5+ Ke7 Nc8+ Kf8 Be8+ Kg8 Bf7+ Kh7 Rc4 Bf8 Bd4 Bg7 Rc7 Kh8
bK3n2/nPpNBq2/r7/Rr3rQN/N1P1p2b/3Bn1p1/3R3R/R1Rr3k b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 g4 hxg4 d4 e5 dxe5 fxe4 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 g5 h4 a5 c4 d6 b4 a4 f4 g3 e6 g4 e7 a3 e8R g2 b6 a2 b5 g3 b7 Ra5 h5 Qe7 h6 Qf6 h7 Ra6 b6 Nc6 b8N Be7 Bd3 Na7 Ne2 Kg4 f5 Kf3 Nbc3 g1R Na4 Kg2 Rd8 Rf1 Qd2 Rf4 Ba3 Bb7+ Nc6 Rf2 Qg5 Ba8 Rhc1 Rf1 b7 Kh1 Ne5 Qg7 Bc5 Nf6+ Ke6 Nd7 f6 d5+ Bd6 d4 f7 Rf8 Nf4 Rd1 Nh5 Rb6 h8R Rb5 Rh7 Bf6 Be7 Qg6 Bf1 d3 Be2 d2 Bd3 Re1 Rh8 d1N Rh7 Ne3 Rh8 Rg8 f8R Rd1 Rfe8 Rf8 Rh6 Nb6 Rd5 Nd7 Rd8 Rb1 Ra5 Rb5 Rab1 a1R Rh8 Nb6 Nd7 Ra2 Ra1 Qg7 Qf5 Bh4 Qg5 Rff1 Rhf8 Ra3 Rf2 Ra2 Rd2 Rff5 Rh8 Ra3 Bf8 Qg6+ Ke7 Qh7+ Kd8 Qf7 Be7 Ra2 Ndc5 Nd7 Rh7 Nc6+ Kc8 Nf8 Nd7 Na7+ Kb8 Rb6 Qg4 Ra6 Qg5 Rb2 Rh6 Rbb5 Rf6 Rfe5 Rff2 Rf5 Rh2+
nR1KN3/1p2R3/k1r1B2n/Pb2N1B1/n1Q1prN1/2p5/2r1P1r1/2qB1bNN b - - 0 1 legal: proof: g4 a5 c4 g5 b4 axb4 h4 d5 cxd5 f5 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Bg2 g4 Bf1 Bg5 hxg5 Ra6 Nc3 Ra7 Nb1 Ra8 d4 Kd7 Kd2 c5 Kd3 Kc7 Ke4 Kb6 Ke5 h5 a4 c4 f4 h4 g6 b3 f5 e6 f6 h3 f7 h2 f8N c3 d6 b2 d5 g2 g7 g3 d7 Ra7 Kd6 e5 Ne6 e4 Bg5 Qe8 d8N Na6 Nc6 Nc7 Qb3+ Ka6 Nd2 b1N Ne5 Bd7 Ng4 Qb8 Qc4+ Bb5 a5 Nh6 Ke7 Rc8 g8B Rf8 d6 Na3 d7 Na8 d8N Qf4 Nc6 Qe3 Ng7 Rf4 Qa2 Nc4 Rd1 Ncb6 Kd8 Na4 Ne8 Rf6 Nce5 Rf4 Nh3 g1R Qc4 Rg2 Ndf3 Qc1 Rd7 Qc2 Rg1 h1B Re7 Qc1 Bf7 Rh2 Bg8 Bg2 Nhf2 Bh3 Be6 g2 Rh1 g1R Bd7 Rg3 Ng1 Rhg2 Rh2 Rd3 Nh1 Rgg3 Bg2 Rd2 Bf3 Bf1 Bg2 Ng8 Rh8 Nh6 Bh3 Rb2 Ne3 Rg2 Bhe6 Rc2 N3g4 Ra2 Qc7 Rb2 Bb3 Rd2 Qc4 Rc2 Be6 Ra2 Bd1 Rc2 Rf8 N8b6 Kc7 Ra8 Ng7 Rd8 Rfe8 Rd6 Rb8 Rc6+ Kd8 Na8 Ne8
N1B5/pB2nNb1/n2bRb1R/1r1b1npp/1q6/P1r1N2N/1Pk4N/2B1K1Q1 b - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 bxc4 h4 f6 hxg5 Nh6 g6 Ng8 g5 fxg5 e4 Ke7 f4 Ke6 g7 h5 a3 d5 Rh3 c5 Re3 c3 Ba6 c2 Nd2 c4 Ngf3 c3 Nf1 d4 Bb7 d3 N3h2 Ne7 g8N Qd6 Nh6 Qb4 Nf7 Bg7 Rb1 Na6 f5+ Kd7 f6 Ke6 Rf3 Rb8 Ne3 Bd7 Rf5 Bc6 Qg4 Rhc8 Qg1 Bd5 Rf3 Kd7 e6+ Kc7 e5 Kb6 Rf4 Kc5 Rc4+ Kb5 Rc6 Ka4 Rd6 Kb3 Rb6 Ng6 e7 Rc7 e8B Ne7 e6 d2+ Kf1 d1N Bd7 Rc5 Ke1 Rb5 Rc6 Rc8 Rd6 Rc6 Bdc8 Rc7 Nh8 Rc4 f7 Bf6 f8N Bg7 Bd2 c1B Nfg6 c2 Nf4 Rc3 Nf7 Bf6 Nh3 Bg7 Nc4 Ne3 Rb6 N3f5 Ne3 Nc6 e7 Bf6 e8N Nce7 Nef1 Bg7 Bf4 Be3 Rh6 c1B Nc7 Bed4 Na8 Bdf6 Ra1 Be3 Rb1 Bc5 Ne3 Bd6 Rd1 Bh1 Rd4 Bd5 Re4 Rbc5 Re6 Rb5 Nc4 Kc2 Be3 Kb1 Bc1 Kc2 Ne3+
b7/2Rq1NB1/3qNb1K/RPppkBrQ/r1P1qN2/RqR3R1/p2n4/2n5 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Ke7 Ke3 Ke6 Kf4 d5 g4 a5 b4 h5 c4 c5 b6 e3 g5 a4 g6 h3 b7 e2 g7 e1Q b5 h2 Bd3 h4 Nc3 a3 Qh5 h3 Nge2 Qd1 Bf5+ Ke7 Kg5 Nf6 g8R Bg7 f4 Qd6 e6 Bd7 Bb2 Ra4 Ne4 Nc6 b8R Na5 Ra8 Nb3 Ra5 Nc1 Rg1 h1Q Rg3 h2 Rc8 Qhe1 Rc7 h1Q Kg6 Qf2 Ng5 Qb3 Nf7 Rg8 Rc3 Bh8+ Kh6 Rg5 Rg3 Ne4 Bg7 Nd2 Ra2 Qe5 Rc2 a2 Rcc3 Ke8 e7 Bc6 Bh3 Qfh2 f5 Qd6+ f6 Ba8 Nf4 Qe4 Bf5 Qde6 Rc8+ Kd7 e8R Rb4 Ra3 Ra4 Rc6 Qh3 Ra6 Kc7 Ra5 Qd7 Re7 Qh2 Nd8 Kd6 f7 Qee2 f8N Qe4 Bd4 Be5 Nf8e6 Bf6 Rf7 Be7 Bg7 Bf6 Re7 Ke5 Rf7 Qc8 Rb7 Qd7 Rc7 Rb4 Rge3 Kd6 Ng2 Ra4 Rh3 Qhe5 Rhg3 Q5f4 Nd4 Qfe5 Nf4 Qee7 Nd4e6 Ke5 Rca7 Qdd6 Rc7 Qed7 Nf7+
R2q2QR/1N2Bn1K/3nrrrP/3qN3/2k1P2N/2p1bp1B/1B1r3p/B5Bb b - - 0 1 illegal: No proof kernel
R1rb4/B1n1N3/1Pb2N2/5P1p/1p1NbQbK/3B1N1B/3krpRq/2qn3N b - - 0 1 illegal: No possible last move
k2B4/1b2B1q1/pb4b1/P1n2NpP/2RNq1n1/NQp1NB2/3r1r2/1b2KN1R b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 b4 exf4 bxc5 d5 c4 dxc4 h4 Kd7 e4 Kc6 d4 f5 a4 g5 e5 b5 a5 Kb7 h6 a6 d5 f3 e6 c3 d6 b4 e7 f4 e8N b3 h5 b2 d7 Qc7 d8B Be7 h7 Nh6 c6+ Ka7 Na3 b1B Nf6 Bc5 Nd5 Bb7 Ne3 Nd7 Bg2 Ng4 Qb3 Bb6 Ne2 Nc5 Nd4 Rf8 h8N Qg7 c7 Rf7 Nf1 f2+ Ke2 Rb8 c8N+ Ka8 Ng6 f3+ Kd1 Rf5 Nd6 Rc8 Nf4 Rf6 Ne3 f1B Nfe2 f2 Ng3 Bfd3 Ngf1 Bg6 Bf3 Rc6 N6f5 Rcd6 Nac2 Rd7 Ra4 Rff7 Rc4 Rf8 Nh2 Rf6 Ba3 f1Q+ Ne1 Qh3 N1c2 Qg2 Ke1 Rdd6 Nhf1 Rd5 Be2 Qe4 Bf3 Rf8 Nc6 Rd2 N6d4 Na4 Bae7 Nc5 Na3 Rf6 Nh6 Rf7 Bd1 Rf4 Nhf5 Rff2 Bf3
b3B2B/BRr1k2P/1n1b3q/nN1NB1Pp/5B1b/2pr2NQ/Kp3b2/2q1R3 b - - 0 1 illegal: No proof kernel
1rr1n2B/R1p4R/1p2nk2/rq1b1N2/5PB1/1PNQB2q/1r1pKN1b/1BB5 b - - 0 1 illegal: No proof kernel
2b1RB2/Q2Br3/2pNnN2/R2Bq3/K1pP2r1/1R1p2n1/B2Pk1qB/2r2q1n b - - 0 1 illegal: No proof kernel
1qr1n1R1/3k4/1q1B4/p1pRR1pq/B4r1N/2PQ2b1/1RrRPn2/n1N3KB b - - 0 1 legal: proof: g4 b5 d4 g5 a4 e5 axb5 exd4 h3 Bb7 h4 Be4 h5 Bg6 hxg6 f5 Ra2 fxg4 Ra4 Nc6 Ra1 Nb8 f4 h5 Kf2 c5 b4 a5 g7 d5 b6 h4 c3 d3 b7 d2 f5 d4 b5 d3 f6 h3 f7+ Kd7 b6 h2 Bg2 Na6 b8R Rh4 b7 Nb4 Ra2 Bd6 f8R Nf6 g8B Ne8 Nf3 Qb6 Bb3 Nc2 Rf5 Na1 Re5 g3+ Kf1 Re4 Nh4 Rf4+ Bf3 g2+ Kf2 g1R Ba4+ Qc6 Qc2 d1Q Nd2 Bc7 Nb3 d2 Qd3+ Bd6 Rc8 Qc2 b8R Qb2 Rb5 Qb6 Rb8 d1Q Be3 Qbb1 Nc1 Re1 Rf1 h1N+ Kg1 Nf2 Bh1 Qdb3 Rc2 Qf7 Rd2 Qh5 Rc8 Qb8 Rb6+ Qb5 Rd5 Qc6 Rbb2 Qcb5 Bd4 Qc6 Be5 Qcb5 Na2 Rc1 Rfd1 Rc2 Nc1 Ng7 Rg8 Ne8 Bg7 Qb6 Bf8 Rc8 Be7 Rd4 Rf5 Bg3 Bd6 Rf4 Re5 Qb8 Qf3 Qb6 Rdd5 Qb8 Qd3 Qc6 Rd2 Qcb5 Bb3 Q5b6 Ba4+
1QBK1RBB/qp6/2b2B1k/3N1bnp/p6N/rPB1qnP1/q2R3n/b5R1 b - - 0 1 illegal: No proof kernel
Rr1r2Nb/rpQ2R1B/k1B2Nq1/BNP1bNp1/2p5/2n5/2PN1r1r/K4b2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 Kf2 c5 Ke1 e5 fxe5 c4 Kd2 Na6 Ke1 Nc5 dxc5 Qc7 Qd5 Qa5 Qd1 Qd8 Kd2 g5 h4 f5 a4 d5 e4 Kd7 h5 Kc7 a5 g3 a6 b3 Kc3 b2 a7 g2 h6 f4 h7 f3 e6 f2 e7 Bh3 e8N+ Kc6 e5 Kb5 e6 Bd6 e7 Bh2 Nf6 Qb6 e8B+ Qc6 Nf3 g1B Bd3 f1R Nh4 Rf2 Nf5 Ne7 Bd2 Rb8 a8N Bf1 Qf3 Bf4 Qg3 Bc7 Rh4 Be5+ Rd4 Bh2 Be1 Bg1 Nd2 b1R Ra7 Rc1 Kb2 Ra1 Be4 Ra6 Nc7+ Ka5 Ra8 Ra7 Nb5 Ka6 Ka2 Qe6 Rd3 d4 Rf3 d3 B8c6 Nd5 Qh2 Nc3+ Ka1 Rhd8 h8N Qe8 Qg3 Qg6 Nf7 Rh2 Rf4 Bgd4 N7h6 Rf8 Nhg8 Rf7 Nb1 d2 Rf3 d1R Qf4 Rd3 Nd2 Rf2 Qh2 Rff8 Qh7 Rfd8 Qc7 Re3 Rh3 Ree2 Rh7 Rh2 Rf7 Ref2 Nfe7 Qh6 Bh7 Qg7 Nf5 Qg6 Nd5 Bh8 Ndf6 Be5 Nb1 Ne4+ Bc3 Rd4 Ba5 Nc3 Nd2 Rd7 Ne3 Rdd8 Nf5
Rn3rBr/p1QRr3/4PprN/b4bNK/1N1BN3/Pqr3Nb/1p4R1/7k b - - 0 1 legal: proof: f4 c5 h4 g5 e4 gxh4 b4 e5 bxc5 d5 Bb2 Nd7 Ba3 dxe4 Bc1 e3 Ke2 e4 Ke1 Ne5 fxe5 Bg7 Qe2 Bh6 Qd1 Bf8 Ke2 Ke7 g4 Ke6 c4 h5 d4 b5 a3 b4 c6 f6 d5+ Ke7 g5 h3 c7 h4 c5 b3 d6+ Ke6 g6 Kf5 g7 Kg4 d7 Kg3 c6 h2 Nd2 h3 Bb2 Bc5 Qc2 Bb6 Ndf3 Ba5 Bd4 b2 Ng5 Ne7 Rd1 Qg8 d8N Bf5 c8R Qb3 c7 Nc6 g8N Nb8 Nc6 Rh6 Nb4 Rg6 Ke1 e2 Nh6 Na6 Rh8 Rf8 c8N Nb8 Kd2 e1R Qc7 Re3 Bc4 Kg2 Nd6 Rd3+ Ke2 e3 Bg8 Rc3 Rd2 Rc6 Nde4 Rc3 Ke1+ e2 Rh7 Rc8 Rd7 Rd8 Rc2 Rf8 Kd2 e1R Ne2 Rc1 Re1 h1B N2g3 h2 Re3 Kg1 Ke2 Bg2 e6 h1R Rd3+ Kh2 Ke3 Rcg1 Kf4 Rg7 Re2 Re7 Rd8 Nd7 Ra8 Nb8 Bf2 Bgh3 Rd7 Rg2 Bd4 Rg1 Nf1+ Kh1 Rc2 Rh2 Rg2 Bhg4 Nhf7 Rh8 Nh6 Bf3 Kg3 B3g4+ Kh4 Bh3 Kh5 Rc4 Rc2 Rc3 Rd2 Rgg3 Rg2 Rg4 Nh7 Rgg7 Nhg5 Rg6 Nfg3+
nn1B1Q2/qBr3p1/2Bp4/1Bnr1NP1/qk2b2B/p4Nn1/5K1P/nN2R2R b - - 0 1 illegal: No proof kernel
1R2RK2/1R6/1nN1pQ2/1r1qB2q/BpPbP1kn/n4p2/3r2N1/NN1N2nn b - - 0 1 legal: proof: d4 g5 g4 c5 f4 cxd4 fxg5 b6 g6 Bb7 b4 a5 h3 Bf3 g5 Bg4 hxg4 axb4 Kf2 h5 Kg3 d5 Kh4 Kd7 a4 Ke6 e4 f5 a5 d3 a6 d2 a7 b5 g7 d4 g6 d3 Kg5 b3 Qf3 d1Q Ne2 d2 Nf4+ Ke5 Bb2+ Qd4 Ng2 b4 Bb5 h4 c4 f4 Ba4 Nh6 g8N e6 g7 h3 Kg6 h2 g5 Qc3 Nf6 Qd4 g8R Nf5 Kf7 Bg7 g6 Nh4 Re8 Nd7 Nd5 Rd8 a8N Rh5 Nac7 Nb6 Ndc3 Qd5 Na6 Bh8 Rf1 h1N g7 Qe2 g8N d1N Nc5 Ndf2 Ra3 Nh3 Kf8 Ng1 Ne7 Bf6 Ba1 b2 Nd1 Rf5 Qf2 Qh5 Nb3 Rg5 Qf3 Bh8 Nc6+ Kf6 Nbc3 b1N Bb2 Kg6 Na1 Bd4 Ra2 Na3 Nb1 Kf6 Qc3 Re5 Rf3 Kg5 Rg3+ Kh6 Rg7 f3 Rb7 Kg5 Rb8 Kg4 Rb7 Be3 Qd4 Rf5+ Qf6 Rg5 Be5 Bd4 Bh2 Qd7 Bc7 Rb5 Be5 Qd5 Bb3 Nc2 Ra8 Na3 Ba4 Bb2 Ne1 Qc5+ Kg7 Rd2 Ng2 Bd4 Rab8 Qd5 Kf8
BqR3n1/2BqpN2/2P1P3/K1n3Rr/1Bp1Bpr1/3Rbn1n/3Qr2N/3kB3 b - - 0 1 illegal: No possible last move, all moves rejected
3qB3/q1r2r1n/r2p2BB/1Nk3RK/3Rq2p/2b2p2/BnP2NQP/R3Bq2 b - - 0 1 legal: proof: f4 c5 g4 e5 b4 a5 d4 axb4 Ba3 f5 Bc1 b6 Nf3 Ba6 Ng1 Bd3 fxe5 cxd4 Nh3 f4 Ng1 Bf5 gxf5 Ra3 Bg2 Ra7 Bf1 Ra8 Kf2 Ke7 Kf3 g5 Kg4 h5+ Kf3 h4 Kg4 d3 a4 b5 e4 f3 a5 b3 a6 b4 a7 d2 e6 Kd6 e7 b2 e8R b3 e5+ Kc5 f6 d6 f7 Nf6+ Kh3 Rh7 e6 Na6 e7 Bg7 f8B Nb4 Na3 b1R Bd3 b2 Bg6 Nd3 Qf1 d1Q Bd2 Qe2 Be1 Qe4 Nb5 Rc8 a8B Rc7 Ra4 Ra1 Rd4 b1Q Qg2 Nb2 Bd5 Ra6 Ba2 Bh8 Bh6 Rf7 Rf8 Nh7 e8B Bg7 Rg8 Bf6 Rd1 Bc3 Rd2 Qd1 Rd4 Qdd3 Rg7 Qf1 Rg8 Qb7 Kg4 Qe4+ Kh5 g4 Nh3 g3 Qd2 g2 Nf2 Qc4 Qe2 g1Q Qf1 Qa4 Qg2 Qf1 Bed2 Qfd3 Ra1 Qf1 Be1 Qa5 Bf5 Qb6 Rg5 Qa7 Bg6+
1rr1rBBn/p2r3R/7K/P2pkb2/2q3q1/1PnB2pN/N1B1R3/Qn3BN1 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Bh6 Be3 fxg4 Bc1 g3 Bf4 g4 Bc1 Bg5 hxg5 Bb7 Qb3 Ba6 Qd1 Bc8 Kd2 Kf7 Ke3 Ke6 Kf4 c5 a4 d5 e4 h5 b3 h4 g6 h3 g7 c3 f3 c4 a5 h2 Ra2 c2 Ba3 c1N Re2 g2 Bf8 Na6 Nc3 Qc7 Kg5 Nh6 f4 Nc5 Na2 c3 g8B+ Nf7+ Kg6 c2 f5+ Kd7 f6 Ke6 Qd4 Rb8 Qa1 Na4 Kg7 Qc4 Kg6 Kd7 e6+ Kc7 e5 Nc3 e7 Nb1 e8B Bf5+ Kg7 g3 Bb5 Re8 Nf3 g1Q e6 Qgd4 e7 Kd6 Ng1 Qe4 Ba6 Rb8 e8B+ Ke6 Rf2 Ne2 Bab5 Nec3 Re2 c1R Ba6 Qc8 Bd3 Ke5 Bc2 Qc4 Bb5 Rh6 Ba6 Nh8 f7 Rd6 Bb5 Rd7 Kh6 Qb4 Bbd3 Qc4 Be7 Re1 f8N Rc1 Ne6 Re8 Rf2 Qg4 Nf4 Rb8 Bf8 Re1 Ngh3 Re3 Re2 Re4 Rg1 h1R Rgg2 Rg1 Rh2 Rg2 Ng1 Rf2 Bh3 Rf1 Bg2 Rc1 Bf1 Qc7 Ne6 Kf6 Nf4 Ree8 Bd1 Qc5 Rh1 Qd4 Rh4 Na4 Nfh3 Rcc8 B1c2 Nac3 Rh5 Qc4 Rh4 Qge4 Kh5 Ke5 Kg5 Re6 Rh7 Ree8 Rd2 Qed4 Kh6 Qg4 Re2+
B3kRnR/2n1B2n/2qrpp1R/1bq2p2/1N1b3K/P2QPB2/nBq5/1N1B4 b - - 0 1 legal: proof: c4 b5 g4 a5 h4 g6 f4 Bh6 f5 Ra7 g5 Bf8 b4 d5 cxd5 axb4 h5 gxf5 Rh2 Ra6 Rh1 Rg6 hxg6 Bb7 Qa4 Ba6 Qd1 Bc8 Kf2 c5 Kg3 h5 d4 b3 d6 f6 a3 c4 e3 b4 g7 c3 d5 b2 g6 b3 Nf3 c2 Be2 Qc7 Ne1 Nd7 Qd3 Qc5 Bf3 Ba6 Kh4 Bb5 Rg1 Nb8 Rg4 Na6 Ra4 Nc7 Ra7 Ne6 Rb7 Ng5 Ra2 Nh7 d7+ Kd8 Nc3 b1Q Bb2 Qd1 Nb1 c1N Nc2 Qd2 Nb4 Qdc2 Bc3 b2 Ra1 Nh6 g8B Na2 Bf7 Rg8 g7 Rh8 g8B e6 Be8 Be7 Bgf7 Ng8 Bd4 Bd6 Ra7 Ke7 d8R+ Kf8 Bc3 Be5 d6 Bd4 d7 Ke7 Rb8 Kf8 Rc8 Ke7 d8B+ Kf8 Nd2 b1N Bb2 Nbc3 Nb1 Nd5 Bc6 Nc7 Rb7 Bc3 Bfe8 Bd4 Bed7 Kf7 Bd1 Kf8 Bcf3 Kf7 Bdc6 Kf8 Kh3 h4 Ra7 Kf7 Ba8 Ke8 Rb7 Nf8 Ra7 Rh7 Rb8 Rd7 Rc8 Rd6 Be7+ Kf7 Rb8 Nh7 Rc8 Nh6 Rh8 Ng8 Rb7 Ke8 Bf8 Nd5 Rf7 Nc7 Be7 Qc1 Kg2 h3+ Kg3 h2 Kh4 Q1c2 Nd2 Ba4 Rc1 Bb5 Nb1 Q2c3 Rc2 h1Q+ Rh2 Qc1 Kg3 Q1c2 Rh6 Qe1+ Kh3 Qec3 Kg3 Qc6 Kh4 Q3c5 Rf8+
1NqkR1n1/2pB2P1/RB4K1/2n1pQ2/nBPq2B1/4bB1b/pnN4r/4N1b1 b - - 0 1 legal: proof: e4 g5 h4 d5 hxg5 dxe4 f4 a5 g4 b6 f5 Qd7 g6 Qd3 g5 Qd8 a3 Ra6 g7 b5 a4 Rg6 fxg6 bxa4 Kf2 h5 Kg3 f5 Kh4 e5 b4 f4 c4 f3 d4 e3 b5 e2 d5 e1N d6 a3 b6 f2 d7+ Ke7 b7 a4 Nf3 a2 Be3 a3 Bb6 Na6 b8N Nd3 Qc2 Nb2 Bh3 f1N Bg4 Ng3 Ne1 Ne2 Qf5 Nc5 Rh2 Nc3 Rh1 Nf6 g8B N3a4 Be6 Bh6 g7 Ng8 g6 Be3 Rg1 Qf8 d8B+ Ke8 Be7 Rh7 Bd6 Kd8 Rf1 Bg1 Kg5 h4 Rf4 h3 Bd7 h2 Bf3 h1Q Bg4 Nf6 g8B Rh2 g7 Qe4 Bd5 Ng8 Kg6 Qd4 Bdf3 Be3 Nc3 Bg1 Nd5 Be3 Nb4 Bg1 Rd1 a1B Nbc2 a2 Rd3 Nb3 Bb4 Nbc5 Bdc6 Be6 Ra3 Qe8+ Kg5 Qed7 Kg6 Qc8 Bd7 Bd5 Be2 Bg2 Rf2 Bh3 Bef3 Nd1 Rd2 Bb2 Rdd3 Bc1 Rd2 Ndb2 Rd1 Nc3 Ra6 Bce3 Rd3 N3a4 Rd2 Qe4 Rd6 Qd3 Re6 Qd4 Re8#
B3K3/1b1pR3/P1rp1Q1p/2k1b3/2R1n3/3qR1B1/N2RR2P/qnBN1bnn b - - 0 1 legal: proof: d4 f5 b4 b5 e4 a6 f4 Nh6 e5 Ng8 d5 Ra7 g4 a5 gxf5 axb4 d6 cxd6 f6 Qa5 f5 Kd8 Be2 Kc7 Bf1 Rb7 Ba3 Kc6 Bc1 Qd8 Kd2 Ra7 f7 Ra3 Ke1 Rh3 Bd2 Rh6 Bc1 Rf6 exf6 Qb6 Ne2 Qc7 Ng1 Qd8 Kf2 g5 Kf3 e5 Ke4 b3 a4 h6 c4 b4 c5 g4 a5 g3 a6 g2 Qf3 b2 Ne2 g1Q Ra3 b3 Nbc3 b1N Na2 b2 Nec3 Bg7 f8B Qf2 f7 Qg3 f6 Qc7 Kf5+ e4 Be7 Bb7 f8R Qa5 f7 Be5 Nd1 Nf6 Re8 Kd5 f8R Nc6 Rb3 Nb4 c6 Kc5 c7 e3 Bg2 e2 Rf7 e1N Re3 Ne4 Bh4 Nbd3 Rfe7 Ndf2 Qf4 Qh3+ Kg6 Nf3 Kf7 Ng1 Qf6 Rg8 Re2 Qd3 Bg3 Rh8 Re6 Qac3 R8e7 Rc8 Re3 Ne2 Re1 Ng1 R1e2 Nh1 Rd2 Qa3 Nac3 Qa1 Na2 Na3 Ree2 b1B Re3 Bc2 Ree2 Ba4 Re3 Nb1 Bf3 Rb8 c8R+ Bac6 Ke8 Ra8 Rd8 Bb5 Bg2 Rc8 Bf3 Rc6 Rc8 Qa3 Bg2 Bf1 Rc7 Bf4 Ree2 Qd3 Bf3 Nef2 R6e3 Ne4 Qb2 Ng5 Qd4+ Kb5 Nb4 Rc2 Na2 Bd5 Qf6 Be5 Qf4 Bc6 Bd5 Ne4 Qf6 Ba8 Rc4 Kb6 Rd4 Rc7 Bb7 Kc5 Bc8 Bd5 Bb7 Bc6 Ba8 Bb7 Ra4 Rc6 Rc4+
3K4/Ppp4p/1R1br1b1/1q1k1QRb/2R2B1N/2qNrq1N/1Rb4P/5BnR b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 Nc6 Bf1 Nce7 Nc3 exf4 Nb1 f3 Bg2 f4 Bf1 Nf5 gxf5 Qd6 Qa4+ Qd7 Qd1 Qd8 Kf2 Kf7 e4 g5 a4 b3 d4 b2 f6 g4 e5 Qe8 e6+ Kg6 a5 Kf5 f7 Ke4 d6 Be7 f8R Bf6 d5 Qa4 e7 Bg5 e8R+ Be7 d7 Ra7 d8R Nh6 a6 Nf7 d6 Bf5 d7 Qb5 Nh3 Ng5 Ra5 Bg6 Nd2+ Kd5 Qc2 b1B Rf6 Bd6 Re2 Re8 Qf5+ Re5 Ra4 Bc2 Rg8 Bh5 d8N g3+ Kg1 g2 Kf2 Ra8 Nc6 Re8 a7 Re6 Rc4 Bg6 Qg4 Re4 Ne5 Re3 Nd3 Bh5 Bb2 Bg6 Be5 Bh5 Qf5 g1Q+ Ke1 Qg4 Kf2 Qc5 Nb3 Qa5 Nd4 Qc3 Rfg6 Bb1 Rb2 Bc2 Qf8 Qf5 Rh6 Qf7 Nf5 Qe8 Qf6 Qb5 Nh4 Bg6 Qf5 Bh5 Kg1 f2+ Kg2 Nf3 Rg5 Ng1 Rhg6 f3+ Kg3 Ba4 Kf4 Bc2 Bg2 f1B Rh6 Be2 Bf1 Bg6 Kg4 Bed1 Bf4+ R3e5 Rgh5 f2+ Kg5 Re8 Kf6 Re7 Be2 f1Q Rg5 Qf3 Bf1 Re6+ Kg7 Bh5 Rhg6 Bb1 Kf7 Bdc2 Rc6 Be7 Ke8 Bd6+ Kd8 Kd4 Rb6 Re3 Rg4 Kc4 R6g5 Kd4 Be5+ Kd5 Rc4 Qa4 Nc5 Bb3 Qf6 Bbg6 Nd3 Qb5 Qf5 Bc2 Bf4+
4NN2/2r1BPR1/4R2N/3Q2pr/Bb1b2Kn/3nppN1/1b1nP1rB/5bkN b - - 0 1 illegal: No possible last move
nB2R2r/N3KN2/q4P2/2kp1RQn/b1bP1pR1/pbbnRB2/5R2/2nB4 b - - 0 1 illegal: No possible last move
QK4BN/BN3Rp1/1pb2R2/3k1b2/3nbp1P/1n2Rp1N/1PRr1R2/qr5n b - - 0 1 illegal: No extended proof kernel
N1N1nBrN/1p3R2/1PP5/2n1Npr1/q1QR4/pbKp4/R3BNb1/4n1bk b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 d4 cxd4 g4 Qb6 gxh5 Qa6 Bd2 Qxa4 Bc1 Qa2 Kd2 Ke7 h4 Ke6 b4 Kf5 e4+ Kf4 h6 Kg3 b5 g5 h5 f5 h7 a5 b6 d5 e6 g4 e5 d3 e7 a4 e8N a3 e6 d4 e7 Qc4 h6 Be6 Nh3 Qa6 c4 Nf6 c5 Qb5 c6 Bg7 Nd6 Ne8 Ra2 Bb3 Be2 Kg2 Nc8 g3 Nf2 Rg8 h8R Nd7 h7 Qa4 Rh4 Nc5 Qc2 Be5 Re4 Rg5 Rf8 Kg1 h8N g2 Rh4 Bh2 Qc4 Rb8 Rf7 Ra8 Ng4 Kh1 Nc3 g1N Nd1 Rb8 Bb2 Ra8 Ne5 Nf3+ Kc1 Ne1 Kd2 Rb8 Re4 Bg1 Nf2+ Kh2 Bc3 Kg2 Bb4 Kh2 Kc1 d2+ Kb1 d1B Kc1 d3 Kd2 Qa8 Kc3 Qa4 Rd4 Ra8 Bf1 Bf3 Be2 Nc7 e8N Bg2 Nf6 Ne8 Nd5 Ne6 Bf8 Nc5 Nc7 Rb8 Nd6 Rc8 Na8 Rd8 Nfg4+ Kh1 Nc8 Rd7 Rf6 Rdg7 Rf7 Rg8 Nf2+
R3qR2/n1q2Rrn/1B1N1nbb/4rpN1/2p2R2/R3PBQp/1N2P1p1/4K2k b - - 0 1 illegal: No proof kernel
2Nr3B/2K2N2/1p2p1B1/k1bN1q2/p2P3p/P2RrN1n/1B1q2b1/1Q1n1NRr b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 Kd7 Ke3 Kc7 Kf4 a5 Ke5 h5 d4 e3 f4 e6 g4 b6 f5 h3 c6 h4 f6 e2 g5 h2 f7 a4 g6 Na6 g7 Nb8 a3 Nh6 g8N Na6 Nf3 Nb4 Nf6 Nc2 Nbd2 Rg8 Rg1 h1R Bb2 Ne3 Qb1 e1Q Bd3 Bc5 f8B Rg3 Nf1 Bb7 Bg7 Qf8 Bh8 Rd8 Bg6 Qd2 d6+ Kb8 d7 Ka7 c7 Ka6 c8N Nd1 Nd5 Ng4+ Ke4 Ngf2+ Ke5 Ka5 Ra2 Re8 d8N Nh3 Nf7 Rd8 Bc1 Qf2 Rd2 Qh6 Rd3 Qhd2 N3h2 Qf3 Bb2 Qg4 Nde3 Bg2 Nd5 Rd6 Nf3 Qh5+ Kf6 Qf5+ Ke7 Rd8+ Ncd6 Ra8 Kd7 Rg8 Kc7 Rd8 Ne1 Rf3 Nc8 Re3 Nf3
1QR2N2/1rr3p1/B2b4/1p3bR1/Nq3p1R/2q1B1PP/nR3kNp/1nRKn3 b - - 0 1 illegal: No proof kernel
6NN/RBk1BpRB/8/Ppnp1PpN/2q1qrr1/n2nb3/5B1K/1bQ4B b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 c3 bxc3 gxh5 Bb4 Bd2 Bd6 Bc1 Bf8 a4 g5 h4 c5 e4 b5 f4 c4 Kf2 d6 Kg3 Kd7 h6 c2 e6+ Kc7 e5 c3 e7 Bh3 e8B Qd7 h7 Ne7 h5 Kb6 e6 Qb7 h6 Ng6 e7 Qc8 Bd3 Ra7 Kh2 Qd8 Bc6 Rg8 h8B Bg2 e8B Kc7 h7 Qe7 Nh3 Nd7 Be3 c1Q Bf6 c2 h8N Be4 Nd2 Nge5 Bb7 Nc4 Bf2 Nc5 Bec6 Na3 Qe1 Qe8 Be7 Rg6 Qf1 Bf5 Ne4 Rf6 Qg1 Qf1 Bd5 Qe2 Qc1 Qc8 Ra2 Qe6 Bdc6 Qc4 Ra1 Bg6 Bd5 Rf5 Nf6 Qee4 Ng8 Bg7 Bdc6 Bd4 Ra2 Qe1 Bg2 d5 Bde4 Be3 Bgf3 Bh5 Bg2 Rf6 Bh7 Bg6 Be4 Re6 Bg2 Re4 Bf3 Rd4 Ra1 Bd3 f5 Rg4 Nf4 Qeb4 Nh5 Rf4 Qb2 c1N Ra2 Bb1 Qd2 N1b3 Qc1 Nd3 Ngf6 Qcc5 Bg8 Qcc3 Ng3 Rg4 Kg2 Bd4 Rh7 Nbc5 Kh2 Be3 Rg7 Nc4 Bh7 Ra6 Ng8 Re6 Kh3 Ree4 Nh5 Ref4 Bh1 Qd4 Kh2 Qbc3 Rb2 Qe5 Rb4 Na3 Re4 Qed4 Re6 Qcb4 a5 Qe4 Ra6 Qbc4 Ra7
q1kBrb2/5ppR/Npq5/2P1R2B/R2B1nKp/nR5P/1rn4R/Nb2Q3 b - - 0 1 illegal: No proof kernel
4r1k1/1KnPn2B/1RNqr3/5N2/q6p/pq2R2R/Rp2B1Pp/bQB2b1R b - - 0 1 illegal: No proof kernel
1RK4N/2P5/5Bpq/1BpkbPb1/3n1N2/1NnNpr1Q/3pr1R1/qbB2N2 b - - 0 1 illegal: No proof kernel
B1Nb4/K1p3N1/p2pn1bN/4rP1n/2B5/2p1r2k/qBP3R1/2QqRBbB b - - 0 1 illegal: No proof kernel
Q1bBrq2/1pR2qn1/1N1R4/2N1Rp2/5nBb/Kpn1r1p1/PN2P1Nk/6N1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 h4 Kd7 d4 Kd6 Kd2 c5 Kc2 g5 Kb3 f3 h6 f2 h5 g4 h7 g3 h6 f6 Bh3 f1Q Na3 Bf5 Bg5 Bg4 Rc1 Bf5 Nc4+ Kd7 d6 Ke6 d7 Na6 Nb6 Ne7 d5+ Ke5 d6 c4+ Ka4 b3 Ka3 c3 Bh4 Qe8 d8R Kf4 d7 c2 Qe1 Be6 Qa5 Nc5 Qa4+ Ke3 Bg4 Kf2 Rh3 Rg8 h8N Kg2 h7 Ne4 Nf7 Nf5+ Nd6 Ng7 h8N Be7 Ng6 Rc8 Qa5 Rc3 Qa8 Re3 Bg5 Qf3 Rh5 Rf8 Bh4 Kh2 Nf4 Qg6 Rd5 Re8 Ng2 Qf4 Bg5 f5 Ra5 Qf7 Re5 Bf6 Ndc4 Be7+ Rc5 Qd6 Nb2 Bf6 Bh4 Qdf8 Bg5 Bc3 Be7 Bf6 Re5 Bg5 Rb8 Bh4 d8N Bd7 Rc8 Be6 Rd1 c1N Rc7 Bc8 Ne6 Nd3 Nc5 Nc3 Bd8 Nf4 Rd6
1Q1Rnk1K/1NR3rp/r1P1b1R1/5p1p/3P1pn1/b1N2nq1/2RN2BB/R2n4 b - - 0 1 illegal: No proof kernel
8/nNpB1Rrb/bp2N1N1/bPRpN1B1/1r3P2/1bK1R1q1/k1Qn3p/N7 b - - 0 1 illegal: No proof kernel
4b2Q/rP1N1k2/Bb2RRR1/1BqNn3/1n1pR2B/Kb1p2P1/1p1p4/1rb2R2 b - - 0 1 illegal: No possible last move, all moves rejected
3r1Bb1/2N1qN1k/Pp2R2b/1PpN1qQq/pn3B2/3B2Kp/1B6/3rBbR1 b - - 0 1 illegal: No proof kernel
K3Nq2/np6/BpBBR1B1/rPkpp2N/2n3Bq/RP6/4q1nQ/1R4rb b - - 0 1 illegal: No proof kernel
3NnBQb/N1pR1r2/B1q3r1/3Pr2R/pRpb4/P1B4k/b1pR4/2K1R2q b - - 0 1 illegal: No proof kernel
RRnBB3/k2B3p/P6r/1b1R1p2/1bq2qrP/p1Np3K/N5B1/rQB1q3 b - - 0 1 illegal: No possible last move, all moves rejected
2B3k1/r3Nn2/1KpN1b2/rQN1B2R/2Np1qN1/1pP1P2q/R1q3p1/2b2R1b b - - 0 1 legal: proof: g4 a5 d4 g5 h4 e5 dxe5 f5 b4 axb4 Rh2 Na6 Rh3 Nc5 Rh1 Ne6 Qd4 fxg4 Qd1 g3 Nf3 g4 Ng1 Ng5 hxg5 Ke7 Qd6+ Kf7 Qd1 Ke8 Kd2 Kf7 Kd3 b5 Kd4 h5 a4 d5 f4 b3 a5 c6 a6 b2 f5 h4 e3 g2 f6 h3 g6+ Ke8 a7 h2 e6 b4 e7 g3 Kc5 b3 g7 Kf7 Ba6 Bd7 Bc8 Nh6 g8N Bf5 Qe2 Rh7 Nh3 g1B Qb5 Bf2 Na3 b1Q Nc4 Qc7 Bb2 Be4 Be5 d4 c3 Qc2 Raf1 Be1 Nf2 Bd2 Ng4 Bg7 e8N Bc1 Ned6+ Kf8 f7 Bf6 Rhg1 h1Q Ne7 Qh3 Rh1 Kg7 f8N Nf7 Rh2 Bh1 Nd7 g2 Ng6 Qd8 Ne7 Qf8 Kb6 Kh8 Nc5 Qfh6 Ka6 Qf4 Ka5 Qhg3 Rh5 Qh3 Nef5 Kg8 Ka6 Rb8 a8R Rg7 Ra7 Ra8 Kb6 Rh7 Ra2 Ra5 Ndb7 Nd8 Nbd6 Rha7 Na6 Nf7 Ne7+ Kf8 Nc5 Kg7 Nd5 Kg8 Ne7+
5RNB/qr2N1KP/1pprk2p/6R1/qB2Bpr1/1B1nnB2/b4R1P/5Q1n b - - 0 1 illegal: No extended proof kernel
kB1r2qq/2B2p2/3qp1b1/2N2Rb1/n2B2PQ/1ppN1BRK/1n1BP1Rn/8 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g3 axb4 g4 hxg4 f3 g5 Ba3 b5 Nc3 g3 Qb3 g4 Qd1 g2 Nb1 g3 Bb2 Rh4 Bc1 Rg4 fxg4 Ra6 Nh3 Rh6 Ng1 Rh8 a4 Kd7 h4 c5 d4 Kc7 d6+ Kb7 a5 e6 h5 b3 d7 c4 d5 c3 h6 b2 a6+ Ka8 h7 b4 a7 b3 d6 Qh4 d8B Ne7 d7 Ng6 Bd2 Bh6 Bc7 Rf8 h8B Na6 d8B Nf4 Nf3 g1N Bd4 Nb4 Ne5 Na6 Bb8 Bg5 Bg2+ Nf3+ Kf1 Qh8 Rg1 Nc5 Bdc7 Bb7 Qe1 Be4 Nd3 Na4 Bh1 Bg6 Rg2 Nh2+ Kg1 Kb7 a8R Rd8 Ra5 Qg8 Rf5 Ka8 Nc5 Qh8 Na3 b1Q Nc4 Nd3 Ne5 Nb2 Ned3 Qa2 Qf2 Qa3 Rf1 Qg8 Qe1 Qb4 R1f3 Qa3 Rgf2 Qb4 Kg2 Qb6 Kh3 g2 Rg3 Qd6 Rd5 g1Q Rfg2 Qf1 Qf2 Qe1 Qf6 Qg1 Rf5 Qe3 Qh8 Qee5 Qh4 Qeh8 Rg1+ Qd5 Bf3 Qc6 R1g2 Qd5 Nb7 Qd6 Nbc5+
R1R2Nb1/2R1np1p/5Bp1/K1RrbR2/1r3BNB/p5P1/P3nnb1/4k1rQ b - - 0 2 illegal: Other
Q1N1r1r1/B4b1n/3pN3/2RR1k2/3P2pn/q1RR1p1R/p1brBPp1/3BK3 b - - 0 1 illegal: No possible last move
4q1N1/p1N1N1K1/1p1BpQ2/2r4N/p4b2/PBn1Rbn1/1qB1np1P/2N2kR1 b - - 0 1 illegal: No proof kernel
2BQ1b2/2Pr2B1/b3Np2/2R1nRpN/1pRbBq1k/5Bp1/pP4K1/3q1nB1 b - - 0 1 illegal: No proof kernel
BR1kr3/Nn1NN1p1/3p2R1/4nQN1/bb3pNr/4PPB1/p1r1p2b/KB6 b - - 0 1 illegal: No proof kernel
1N1B1r1R/p1bpP3/Rp1N1bnN/1B1p1Qr1/K1bk1p1N/4nPN1/3B3b/8 b - - 0 1 legal: proof: d4 c5 g4 h5 a4 hxg4 b4 b6 bxc5 e6 d5 exd5 a5 Qc7 a6 Qb7 axb7 Rh3 Qd4 Rh5 Qd1 Rh8 Kd2 Ke7 Kc3 Kf6 Kb3 Ke5 c4 f5 e4 g5 h4 g3 h5 g2 c6 f4 h6 g4 h7 g3 c5 Bd6 c7 Nh6 c6 Rf8 h8B+ Rf6 Ra6 Ng8 Nd2 Ba3 Bb5 Kd4 e5 Rg6 e6+ Rg7 Qg4 Ke5 Nf1 Bd6 Ka4 Kd4 Bd2 Nf6 Qf5 Ng4 e7 Ne3 Nf3+ Kc5 Rh3 g1B Nh4 g2 f3 Rg5 Ng3 Bh2 Be5 g1B Ng6 Nf1 Rh8 Bd4 Nh4 Ne3 Ra5 Na6 b8N Nb4 Ra6 Bb7 c8N Bc7 Nd6 Nd3 Nf7 Bb2 Bg7 Ne5 Nh6 Ng6 Bgc3 Ba1 Bb4+ Kd4 Bd6 Bd8 c7 Bc8 Ra5 Ba6 c8N Bb2 Bc7 Bc3 Bc6 Bc4 Ra6 Ba1 Bb5 Bb2 Bd6 Bc7 B6b4 Be5 Bd6 Bf6 Bc7 Ba3 Ra5 Bd6 Bd8 Bc7 Ra6 Bg7 Nd6 Kc5 Nc6 Rc8 Nb8 Kd4 Ng4 Be5 Nh6 Bf6 Nb7 Bd6 Bc7 Rf8 Bd8 Bc7 Nd6
Nb6/q1Bn1n1b/prr4N/Rp6/1P4rN/PN3R1B/Q2rB3/K1bk1Nrb b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 g4 Kd7 d4 Kd6 Kd2 h5 Kc2 c5 b4 f5 Kb2 b5 e4 h3 a3 f3 g5 h4 g6 f2 g7 f4 Qb3 h2 Nf3 h3 Ne1 c4 Qa2 f3 Ng2 Qc7 Nh4 Nd7 Nd2 Rb8 Be2 Nh6 g8B f1R Be6 Rd1 Nf1 f2 Bd2 Bg7 Bf4+ Be5 Rb1 c3+ Ka1 Rd2 Rb3 c2 Rf3 c1B Bg4 Ke7 d6+ Kf6 Bg3+ Bf4 e5+ Kg5 d5 Rb6 e6 Rg8 e7 Nf7 e8N Qc5 Rg1 h1R Nc7 h2 Na8 Rc6 Rg2 Rg1 Bh3 h1B Bh2+ Kh5 Rg6 Bg3 Re6 Rg4 Re8 Bb7 Rb8 Bc8 Rb6 Kg5 Ra6 Qe3 Ra4 a6 Ra5 Bf4 Bg3 Qa7 Bh2 Nf6 d7 Bb8 d8N Bf5 d6 Nd7 Be5 Bh7 Ne6+ Kh5 Nd4 Rb6 Ne3 f1R Nb3 Rfd1 Nf1 Rc2 Bf6 Rcc6 Bd8 Rd2 Bc7 Kg5 Re3 Kf4 Rd3 Nf6 d7+ Ke4 d8N Nd7 Rd6 Kf4 Rf6+ Ke4 Bf3+ Kd3 Be2+ Kc3 Rf5 Rb2 Rf3+ Kc2 Bc4 Kd1 Bd3 Ng5 Nf7 Rd2 Nh6 Nf7 Be2+
2n2n1k/1BBr1N2/2npb1b1/1q1BQn1p/Br3bRP/2NB4/1RRPb3/n1K5 b - - 0 1 illegal: No possible last move
2N3R1/1n1r2pR/p1n1K3/P3Q1PR/Bq2rb2/1Nq3R1/1bbp1RNB/r3k2n b - - 0 1 illegal: No proof kernel
7R/p2qnN2/kpr2R1n/P1n1rb2/1PN1R1p1/r1b4Q/1R3b2/1K1BqRBB b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 Bh3 hxg4 Bg2 Nd7 Bf1 Nb8 a4 Kd7 b4 g5 d4 c5 Kd2 Kc7 Kc2 Kb6 h4 f5 e4 f3 h5 f2 a5+ Kc7 d6+ Kc6 e5 b6 e6 Kb7 d5 g3 e7 c4 e8B g2 h6 f4 h7 f3 d7 c3 d6 g4 Nh3 g1B Rh2 Ne7 Na3 Bg7 Ng5 Na6 Nc4 Nc5 Nf7 Ka6 Bg2 f1N Kb1 f2 Qb3 Ng3 Be3 Ngf5 Bh1 Nh6 Bd4 Qc7 d8R Qd7 Rg2 Rf8 h8R f1R+ Kc2 Rf4 Kb1 Rf5 Rb2 Bf2 Qa3 Re5 Qb3 Qb7 Ba4 Qd7 Re8 Bf6 Qa3 Rb8 Bd1 c2+ Kc1 Rb7 Qh3 Rc7 Rab1 Rc6 Be3 Qb7 d7 Qc7 d8R Bf5 Rd4 Qd7 Rb8 Rfc8 Re4 R8c7 Rbf8 Bg7 Rb3 Rc8 Kb2 c1Q+ Ka1 Qc3+ R3b2 Qe1 Bd4 Rd6 Rc1 Rcc6 Kb1 Rdd5 Be3 Rd3 Bd4 Ra3 Be3 Bh4 Bg1 Bf2 Re8 Nc8 Re6 Ne7 Rd6 Rd5 Rg6 Bc3 Rf6 Re5 Bc2 Qed2 Rf1 Qe1+ Bd1
8/3b1B2/1K1R1Nnk/p1n1p2r/B5N1/q3P1np/PR1B1NBr/n1Q1bBnb b - - 0 1 illegal: No possible last move
Bb3q1r/2B1p3/1KNpq3/3PRRqR/3RRnN1/q3Qr1n/3rP1bp/3k3B b - - 0 1 illegal: No proof kernel
K2nBqr1/1p6/Nb1R1n2/1rN2qB1/1q1BQR2/4BbNp/1P4pP/q1B2k1n b - - 0 1 illegal: No proof kernel
kqR5/2nN1pb1/pr6/Rn6/qpK1N1r1/2R5/PP1BBRbp/1Qn2qRB b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 e4 Kd7 Ke2 b5 Kd3 h5 g4 c5 g5 Kc7 d6+ Kb7 g6 a6 d7 b4 g7 f3 e5 f2 e6 h3 e7 h4 e8B h2 Nf3 h3 Nc3 Nc6 Ne4 Nf6 g8R Rb8 Rgg1 Ka8 Ne5 Rb6 Kc4 Bb7 d4 Nd5 Bd2 Rh4 Qb1 Na7 Be2 Nc7 d5 f1Q d6 Qb8 d8R Bg7 d7 Rg4 Rc8 Nab5 d8R Qd1 Rg2 Qa4 Rc1 h1Q Rf2 h2 Bc6 Qg1 Rd4 Qf1 Bd5 Bc6 Nd7 Bb7 Rc3 Bc6 Nd6 Bb7 Bh1 Bd5+ Kd3 Bg2 Rd5 c4+ Ke3 Na7 Ra5 Nab5 Ne4 Qfd1 Ra3 c3 Kd3 c2 Kc4 c1N Rc3 Qf1 Qc2 Nb3 Re1 Nc1 Qb1 Qg1 Rf6 Qf2 Rg1 Qf1 Rf2
b6n/K3B2R/p2NRn1r/P3bN2/RrQp1RB1/pBb1n1qb/3P1Rp1/1k6 b - - 0 1 illegal: No proof kernel
nR2Q2B/1p1b4/2p1p1b1/1R1pr1N1/Br2Pr1b/1Pb2Bq1/1N2NNn1/k3N1K1 b - - 0 1 illegal: No proof kernel
1kR1Nq1r/6Rp/KnR5/p3BRr1/2nQpnbP/bN6/Pp1B4/R2rn2B b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 Ba6 fxg4 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 c4 Kc7 h4 e5 f4 g5 d4 a5 c6 b5 d5 g3 d6+ Kb6 f5 Ka7 c5 e3 Kd3 g2 c7 b4 Kc4 e2 Kb5 e1N f6 e4 c6 g4 d7 g3 f7 b3 Na3 b2 Qd4+ Bc5 f8R Na6 Rf5 Qg5 d8B Qf6 Bd2 Qf8 Nf3 g1R Bg2 Nh6 Nc4 Nf7 Nd6 Ne5 Ne8 Nb4 Bf6 Nc4 Be5 Nd5 Rh3 Rg8 Bh1 g2 Rg3 Ndb6 Rg7 Bd7 c8R Ba3 Rc7+ Kb8 Qe3 Rf1 Nd4 g1N Nb3 Ne2 Qd4 Rh8 Nc5 Ra7 Nb3 Rb7 Ka6 Nf4 Rff7 Bg4 Rf5 Rg1 Rcf7+ Ka8 c7 Rb8 R7f6 Rd8 Rc6 Rd6 Kb5 Rd7 c8R+ Ka7 R8c7+ Kb8 Rg8 Rg7 Ka6 Rg5 Rgg6 Neg2 Rg8 Rd1 Rgg7 Ne1 Rc8#
nQ6/1r1pb1B1/k2N1p2/1nNb1P1R/1rRPN1K1/3nb1p1/N1qpBp1N/4R3 b - - 0 1 illegal: No proof kernel
NN2rRkr/6p1/BbK5/2NNp3/1pnRP1qn/1nNp1p1R/1P3B2/3bQ1q1 b - - 0 1 illegal: No proof kernel
2R2B2/N2p4/pQ3rqp/r2b1N1p/1p1P1N1R/N3N2P/Bn3kB1/Kn3nbq b - - 0 1 illegal: No proof kernel
n6b/r1B2qP1/r2QBb1B/1K2nn1n/4NPNN/8/RR2N2r/R1b3k1 b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 g5 exf5 d5 c4 b5 cxd5 b4 h4 gxh4 a4 Bd7 a6 Bb5 axb5 Nd7 b6 Nb8 b7 Nd7 b8R Nxb8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 f4 h5 g4 e5 g5 c5 f6 b3 g6 h3 a7 h2 f7 b2 d6 h4 d5 h3 d7 Rh6 d6 Nf6 Ra6 Nh5 Be3 Qe8 d8R Bg7 f8B Nc6 d7 Bh8 g7 Qf7+ Kb5 c4 Bb6 c3 Ra3 c2 Ba5 c1B Nc3+ Ke3 Ra2 Kf2 Qd6 e4 Rb8 e3 d8N e2 Ne6 b1N Be7 Ne5 Nc5 Nd2 Bg5 e1B Nce2 Ndc4 Nf3 Bc3 Bc7 Nb6 Nh4 Rf6 Rg1 h1N Bh6 h2 Bh3 N1g3 Be6 h1R Rd1 Nf5 Ne4+ Ke3 Re1 Rh2 Rd1 Ba3 Rda1 Bc1 N4g3 Kf2 Ne4+ Kf1 Rb7 Re8 a8N Re7 Bb8 Bd4 Nc7 Na8 Ne8 Rc7 Rb6 Ra7 Bc7 Rg6 N8f6 Bb2 N2g3+ Kg1 Ng4 Nc4 Ra5 Bf6 R5a2 Ne5 Ne2+ Kf1 Rc6 Nfg3 Qd8 Be7 Bb3 Nf5 Rcc2 Rga6 Qd6 Bg5 Rcb2 Bf6 N2c3 Kg1 Bc4 Bd8 Be6 Bf6 Ne2+
2n2R2/r5q1/q4N1P/qQ1nKbN1/2B1R3/nN1pR2k/1P1B3B/r1r4R b - - 0 1 legal: proof: e4 c5 g4 b5 a4 f5 axb5 Bb7 exf5 Bc8 d4 cxd4 c3 h5 gxh5 dxc3 Bd2 e6 Bh6 Qf6 Bc1 Qd8 Ra5 a6 Ra1 Bc5 Ra5 Bb6 Ra1 Ba7 b6 Kf8 bxa7 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 g5+ Kg3 c2 h4 a5 f4 e5 h6 d4 h7 g4 h5 e4 h6 e3 Na3 a4 Bc4 d3 Nb1 a3 Bd2 c1R Nf3 a2 Qb3 e2 Qb5 Ne7 Rh3 Rg8 h8B+ Rg7 Rh4 Nd5 Rh3 Ke7 f6+ Ke6 f7 Kf5 f8N e1N Nh7 Qa5 Nf6 Nc2 Rh1 Nd7 Rh3 Rb8 a8R Na3 Ra7 Nb6 Re7 Rf7 Re4 Ra8 Rh1 Re7 Rhe1 Be6 R1e3 Nc8 Bg7 Qa6 Bf8 Rd7 Bd6 Raa7 Nc3 Ra8 Na4 Rda7 Nc5 Bd7 Rb1 a1Q Nb3 Be6 Kg2 g3 Be5 Rc3 Rh1 Rc1 Kh3 g2 Kg3 Bd7 Nfd4+ Kg6 f5+ Kg5 Kf3 g1Q Bh2 Qa5 Nh7+ Kh5 f6 Be6 f7 Qg7 f8R Bf5 Nf6+ Kg5 Re7 Kh4 Ree8 Nb4 Kf4 Nd5+ Ke5 Qa6 Nf3+ Kh3 Nbd4 Nb1 Nb3 Q1a5 Kd4 Na3 R8e4 Re1 Ke5 Ra1 Be1 Rc1 Bd2 Qc3+ Nbd4 Nc2 Qb3 Rf7 Bb5 Qb6 Be1 Raa1 Bd2 Qa6 Bc4 Ra7 Qb5 Qca5 Nb3 Na3 Ng5+
5nR1/nB1N3n/4k1BN/5p1N/bBb2n2/3P2Pq/1Bq3nQ/n2R1KR1 b - - 0 1 legal: proof: a4 d5 c4 b5 axb5 dxc4 Qa4 e6 Qd1 e5 f4 exf4 b4 a5 Nf3 a4 Ng1 Ra5 bxa5 Qd5 Qb3 Qd4 Qd1 Qd8 g4 h5 g5 f5 Ra2 Rh6 Ra1 Rf6 gxf6 g5 Qc2 g4 Qb3 g3 Qd1 g2 Qc2 Bh6 Kd1 Bg5 Qb3 Bh4 Kc2 Ne7 Qg3 Ng8 Qe1 Bg3 Qd1 Bf2 Qe1 Be6 Kd1 Bg3 hxg3 Bd7 Qf2 Kf8 Ke1 Be6 Qe3 Kf7 Qb3 Ke8 Qd1 Bc8 e4 Kf7 e5 c5 d3 f3 a6 c3 b6 c4 b7 f2+ Ke2 c2 a7 a3 a8N h4 Nb6 h3 Ra2 h2 Bf4 c1Q Qa4 c3 Qc2 Nc6 b8R Ba6 Nf3 Na7 Rg1 h1B Nd7 Ne7 Ra1 a2 Nh2 Ke6 f7 Qh8 f8B Qh3 Nd2 Bc4 Ne4 Ng6 Bb4 Nf8 Nef6 Qb2 Qd2 c2 Rd1 a1N Nh5 Qa2 Ng4 c1N+ Ke3 Qb1 Nh6 Qc2 Be2 f1N+ Kf2 Ne3 Bf3 Ne2 Bb7 Ng6 Rg8 Nf8 Bg5 Nf4 Qe2 Nf1 Bf6 Ne3 Rgf1 g1N Ke1 Be4 Qh2 Bc6 Bh8 Nge2 Rg1 Neg2+ Kf1 Nh7 Bg7 Ng6 Bf6 Kd5 e6 Ngf8 e7 Nef4 e8B Ke6 Bg6 Ba4 Bb2
1r2n3/2R5/n1P5/6BK/p1BbPQN1/1r1p1p2/p1NNR2b/NR1q1kB1 b - - 0 1 illegal: No possible last move
BbBK4/P1N4q/4P1Rk/4Q1Nr/1R3b2/pNpn2pp/1R2B2p/Bq6 b - - 0 1 illegal: No proof kernel
NR5b/2Rppr1B/1p2N1qr/1BBKQP2/1q3pN1/1P4rp/6kR/2B5 b - - 0 1 legal: proof: e4 f5 c4 g5 f4 c5 h4 gxh4 g4 b6 a4 Ba6 d4 cxd4 c5 Qc8 a5 Be2 c6 Nh6 c7 Qb7 cxb8B Bd3 a6 Nf7 axb7 Ng5 fxg5 f4 Qc2 Bc4 Qe2 Be6 Qd1 Bf5 exf5 Bh6 Bd2 Bg7 Bc1 Bf8 Kf2 Kf7 Kf3 a5 Ke4 h5 g6+ Kf6 b3 Kg5 g7 d3 g8N h3 Bc7 Kh4 b8R Kg3 g5 d2 g6 h4 g7 h2 Nh6 h3 g8B a4 Ng4 a3 Nc3 a2 Nb5 Rh6 Kd5 Bg7 Qe2 Bh8 Nf3 d1R+ Nfd4 Rd3 Bh7 Re3 Rb1 a1Q Ne6 Qa3 Bd6 Qb4 Nbc7 Rc3 Qe4 Rf3 Bd3 Kg2 Qe5 Re3 Bb5 Rg3 Rc8 Rb8 Bc5 Ra8 Rg8 Rf8 Na8 Rff6 Rb8 Rf7 Re1 h1Q Ra1 Re3 Ra7 Qg1 Rc7 Rg3 Rf1 Qf2 Rh1 Qb2 Qe1 Qf6 Qe5 Qg6 Rh2+
r3r3/2n2KN1/3kR2N/6P1/Rrq2QR1/B4RB1/P1n2Nqb/qBnr3b b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 Ke2 Kd7 Kf3 b5 Ke4 h5 Ke5 d3 g4 d2 f4 h4 g6 h3 f6 h2 f5 b3 g5 b2 f7 e6 g7 b4 d6 b3 f6 Rh3 Bd3 Bb7 Na3 b1R Nb5 b2 Qf3 d1R Nc7 Rh8 Bf4 Qc8 Nh3 Ne7 g8N Nd5 Rg1 h1Q Bg3 Na6 Nh6 Nf4 Ne8 Nc7 Nf2 Ne2 Ng7 Qg2 Qf4 Nc1 Be4 Be7 f8B Bd8 Be7 Re8 f7 Bd5 Kf6 e5 Bh7 e4 f8R e3 Re1 Kc6 d7 e2 Bc2 Be4 Kf7 Bf3 Rg1 e1N Ba3 Kd5 Bf5 Nc2 Re1 Be7 d8R+ Bd6 Re4 Qa6 Ra4 Qc4 Bh7 Qg1 Rb8 Bh1 Rbb4 Qg2 Bg6 Red8 Re8 Be5 Re6 Re8 Bf5 Bd6 Re3 Be5 Rf3 Kd6+ Kg6 Qc3 Qd2+ Nd4 Rf4 Rg1 Bh4 Ne2 Rf3 Bh2 Kf7 Rgc1 Bh7 Qd3 Qe3 Rc4 Qd2 Rf1 Rd1 b1Q Re1 Nc1 Re5 Rd1 Bg3 Qa1 Qe3 Qe2 Bb1 Nc2 Qe4 Rc5 Qe3 Rb5 Rg4+ Rb4 Qf4 Qc4+ Re6+
BKb5/R3q3/1k2bR1R/1N6/2QnqRrN/B1Pn3P/1n1Bn2q/1qN3q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 Ra3 exf4 Ra1 g4 Na3 a5 Qd2 h5 Qb4 Bh6 Qd2 Bg5 hxg5 h4 Nb1 h3 Qd3 h2 Qd1 Rh3 gxh3 Ra6 Bd2 Rh6 Bc1 Rh8 Kd2 d5 Kd3 Kd7 e4 Kc7 b4 f5 c3 f3 e5 g3 e6 a4 g6 g2 e7 f2 e8R a3 g7 f4 Be2 f1B Rf8 f3 Rf4 f2 Qa4 a2 Bd2 Qe7 Na3 Nf6 g8N Ng4 Nh6 Kb6 Nf5 Nc6 Nh4 Rg8 Qb3 Rg7 Qc4 Rg8 Ngf3 g1Q Ne1 Bg2 Bf3 f1N Be4 Ng3 Bf3 Kb7 b6 Ne2 b5 Qf2 Rf1 h1Q Rf6 Qh2 Be4 Qfg1 R1f4 Bf3 Nec2 Bh1 Nb4 Rg5 Rh6 Qgg2 Raf1 a1Q Na2 Qc1 R1f2 Qcg1 Nc1 Rg6 Rf6 Rg7 R2f4 Nge5+ Kc2 d3+ Kb3 d4 Ka4 Rg4 Bd5 Ka8 b7+ Ka7 b8R Qe4 Ra8+ Kb7 b6 Bg2 Be3 d2 Kb5 d1N Bd2 d3 Ra4 Nb2 Ra7+ Kb8 b7 Kc7 Ka6 Bf1 Be3 d2 Bc5 d1Q Nb5+ Kd7 Bd6 Ned3 Ba3 Ncd4 Kb6 Kd8 b8B Qc2 Ba8 Qb1 Rb7 Bg2 Ka7 Be6 Bc7+ Kd7 Kb8 Bf1 Qb4 Kc6 Bd6 Bg2 Ra7+ Kb6 Qb3 Qf5 Qc4 Bb7 Rf3 Qe4 Bf4 Bc8 Rf2 Ne5 Bd2 Ned3+ R2f4
1KR1bb2/BNrB1N2/3N2P1/6Rr/qRPq1b2/3pBR2/Q1n5/1b1bn2k b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 Kf7 Kd3 h5 Ke4 e5 Kd5 d3 g4 b3 f4 d6 c4 e4 g6+ Kf6 b6 b2 b7 d2 g7 e3 Qc2 d1B Nf3 e2 Ra3 e1B Nbd2 b1B Bh3 h4 Ne5 Nh6 g8R Nd7 Kc6 d5 b8B d4 Nf7 Ra7 Qa2 Nc5 Rf3 Bg3 Rg5 Rc7+ Kb6 Qe8 Ba7 Nd3 Rhf1 Bd7 Ne4+ Ke7 f6+ Ke6 Ka6 Nf5 Be3 Ne1 Ned6 d3 R1f2 Rh5 Rb2 Bc6 Rb4 Nd4 Kb6 Ndc2 f5+ Kd7 Ka6 Bf4 Kb6 Qe4 Ka6 Ba4 Kb6 Qd4+ Ka6 Rc8 Kb7 Rc7+ Kb8 Kc6 Rg6 Bb5 g5 Ba4 Bg4 h3 Rg8 h2 g6 Bg7 Rc8 h1Q Rg3 Qf3 Bh3 Bf8 Rg5 Qfe4 Qb3 Bh6 Nh8 Qe8 f7 Kd7 Qa3 Bh2 f8N+ Ke7 Bg4 Kf6 Ne6 Ke5 Nd8 Qd7 Qa2 Bc6 Bg1 Kf4 f6 Kg3 f7 Kg2 f8R Kh1 Rf3 Bf4 Be3 Bf8 N8b7 Ba4 Nhf7 Qc6 Re5 Qa6 Ra5 Be8 Rg5 Qa4 Bd7
n4b2/1Q3R1K/4NNr1/q1R4p/2PB1PnB/1q2qN1b/qB6/1kr1rB1R b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 d4 c5 e4 f5 exf5 cxd4 a4 axb4 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Ke2 Kf7 Kf3 h5 Ke4 d5+ Ke5 b3 c4 d3 g4 d4 f4 d2 b6 b2 b7 d3 f6 Kg6 f7 Rh6 Qb3 d1R Nc3 b1Q Na4 d2 Nc5 Na6 b8B Nc7 Bb2 Nf6 Qb7 Rc1 Ba7 d1Q Ra5 Qb3 Ne6 Q1a2 Bad4 Ra7 Rc5 Na8 Nf3 Qda5 Be3 Ra6 Bf2 Rd6 Bh4 Rdd1 Bd4 Kh7 Kf5 Rg6 Bb2 Re1 Bd4 Rg8 g6+ Kh6 g7 Kh7 g5 Ng4 Be2 Bd7 Ke4 Kg6 Bb2 Rh8 g8N Rh6 Nf6 Bc8 Kd5 Kf5 g6 Bd7 g7 Rg6 g8R Bc8 Nc7 e5 Ne6 e4 Rg7 e3 Bf1 e2 Rh7 Red1+ Bd4 e1Q Rg7 Qee3 Rh7 Bg7 f8B Re1 Bd6 Bf8 B6e5 Bg7 Kd6 Bh6 Ke7 Bf8+ Kf7 Bd7 Nd5 Ke4 Rg7 Bc8 Kg8 Bd7 Kh7 Bc8 Bg2 Kd3 Rf7 Kc2 Bf1 Kb1 Nf6 Nh2 Nc7 Bh3 Ne6 Ng4 Bb2 Qba4 Bec3 Q4b3 Bd4
nR1qbnNK/3r2P1/2nb2B1/3NPqn1/Q1r3N1/N3b1RB/3kRp2/B7 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 d4 c5 g6 h5 g7 h4 g5 f3 d6 h3 g6 b3 d7 b2 d5 h2 b6 f2 d6 f4 b7 f3 Nh3 Ra4 Rg1 h1N Na3+ Kc3 e4 b1N Rg3 c4 Nf4 Nd2 Bh3 Ne7 Kf6 f1Q g8B Rh7 e5 Nf2 Bf7 Nbc6 b8R Ba6 Rab1 Bb5 Nd5+ Kd3 Be8 c3 Bb2 c2 Ba1 c1B Bf7 Re4 Qa4 Nc4 Be8 Bf4 Re1 Nb6 Bf7 Rc4 g7 Na8 Bg6+ Ne4+ Ke6 Rh6 Kf7 Qb6 d8N Kd2 d7 Be3 Nf6 f2 Ne6 Qd8 Ng4 Qd3 Nc7 Qb1 Nd5 Rh4 Bh5 Ng6 Kg8 Bd6+ Kh7 Nf8+ Kh8 Qc7 d8N Ng5 Nf7 Qf5 Nfh6 Qd8 Ngf6 Rhd4 Nhg4 Nb4 Bf7 Be8 Ng8 Nc6 Bg6 Bc7 Nf4 Rd7 Nd5 Bd6 Re2+
1b2K3/NqN1BPBr/1R1pnR1Q/2n2q1n/P2q3k/8/2b2Rr1/1N2Bn1N b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 h5 g4 Ra6 gxh5 Ra8 a3 Nc6 Bc4 Nb8 Ba2 b3 Bh6 bxa2 Bg5 Qb6 Bc1 Qd8 Nc3 Kf7 Ke2 Kf6 Kd3 e5 Ke4 b5 Kd5 g5 f4 g4 h4 e4 a4 e3 c6 g3 h6 b4 h7 e2 c7 e1N h5 b3 h6 g2 Qd2 b2 Nge2 b1Q Ng3 g1N Rh2 d6 Nh1 Qe8 Rf2 Qb2 Rb1 Bd7 c8N a1Q Ne7 Kf7 f6 Nc6 f5 Nd3 Qe3 Nd8 Bd2 Bb5 Be1 Bg7 Qf4 Kf8 f7 Qb4 Rb3 Be5 Nb1 Bd4 c4 Qd7 c5 Ne2 c6 Qba3 c7 Q3b2 c8N Ng3 Qc1 Bb6 Na7 Bc7 Qg5 Ba6 Qg6 Qc2 Rb6 Ne6 Qh5 Ndc5 Qh3 Qd8 Kc6 Nf1 Nd5 Nf6 Qe3 Rg8 h8B Qd4 h7 Nh5 Bf6 Qc8 h8R Bd3 Bg5 Kg7 f8B+ Kf7 f6 Kg6 f7 Be4 Bge7 Qb7+ Kb5 Re8 Bh6 Bb8 Nc7 Bf5 Bhf8 Qce4 Qc1 Qee5 Qf4 Bc2 Qd2 Qef4 Rh6+ Kf5 Qc1 Kg4 Rf6 Qf5 Qh6 Rg5 Bg7 Kh4 Nd2 Rg2 Nb1 Qc8 Kc6 Rh8 Ba5 Qa6 Bd2 Rh7 Be1 Nb7 Kd7 Nbc5+ Ke8 Qb5+ Rc6 Qb7 Rb6
3n2n1/Bp1n1rN1/4nB2/k7/r1q1bN1Q/BN1P3q/KR2b1BP/2Rr2R1 b - - 0 1 legal: proof: b4 d5 g4 h5 e4 hxg4 a4 f5 exf5 a5 c4 axb4 cxd5 c6 a5 e6 a6 Rh5 a7 Bd6 Ra2 Na6 Ra1 Bb8 axb8R Rh8 f4 Kd7 d6 g5 f6 b3 f7 e5 f8B c5 f5 Kc6 f6 Kb6 d7 c4 f7 e4 Bh6 e3 f8N c3 Ra3 b2 Rb3+ Ka5 Nf3 e2 Rg1 g3 Ne6 g2 Nc7 g4 Bg5 c2 Rh1 g1R Bf4 g3 Be5 g2 Ng5 Nb4 Bd4 Rh7 Ba7 Rf7 Nd5 Nc6 Ne6 Qb6 Ndf4 Qe3 Rb4 Qh3 Ng7 Nd8 Rb6 Nc6 d8B Bg4 Bh4 Nd8 Bf6 Bf3 Rc8 Be4 Na3 b1B Rb2 Ba2 Rc7 Bc4 Nb5 Bcd3 Nd4 Bb5 Kf2 e1N Qg4 Nd3+ Ke2 Ne5+ Rc4 Nd7 Qh4 Ba6 Ke1 Bb5 Rc3 Be2 d3 Rf8 Kd2 Rf7 Bb8 Ra6 Rc6 Ra8 Kc3 Ra7 Kb3 Ra8 Be3 c1Q Ka2 Qc4+ Nb3+ Kb4+ Kb1 Ra4 Bd6+ Kb5 Nc1+ Ka5 Ba7 B2f3 Ba3 Bg4 Be2 Rd1 Bf3 g1N Bg2 Nf3 Rg1 Ng5 Ka1 Be2 Rc7 Qc6 Ka2 Nge6 Nb3+ Kb5 Na1+ Ka5 Rc8 Qa6 Rc1 Qc4+ Nb3+
B4KB1/1n2R2B/2kB4/pq2R2N/bnP1r2b/1P3nn1/1Q3N2/1n1NqqR1 b - - 0 1 legal: proof: f4 g5 fxg5 b5 g6 a5 d4 c5 h4 cxd4 a4 f5 axb5 f4 g4 Ra6 e4 Rf6 g5 Rf5 h5 Bg7 h6 Bxh6 exf5 Bf8 Ke2 h5 Kd3 e5 Kc4 d5+ Kb3 Kd7 c4 h4 f6 f3 b6 f2 f7 d3 b7 d2 g7 h3 g6 e4 Rh2 d4 Bg2 f1Q Qc2 d1Q Ka4 e3 Kb5 d3 b3 d2 Ba3 e2 Bd6 e1N Kc5 Nf3 Qb2 Ne7 g8B Rh4 g7 Re4 Nc3 Qe8 Bh7 Nf5 g8B Be7 f8R Nc6 Rf7 Qde1 Nd1 Nb4 Rh1 h2 Nh3 Qfe2 Rc1 Q2f1 Rg1 h1N Nhf2 Nhg3 Rg7 Qh5 Rg5 Qe8 Rh5 Bh4 b8N+ Kd8 Rc3 Bd7 Re3 Ba4 Nd7 Kc8 Rg5 Kb7 Nf6 Qb8 Nh5 Qe8 Be7 Nd6 Re5 Qb8 Nc3 d1N Re2 Ne3 Ncd1 Ned5 Bh1 Nc3 Re3 Nf7 Bd6 Nb1 Bg2 Nd8 Bh1 Nc2 Kd5 Kb6 Bg2 Nb7 Ke6 Kc6 Kf7 Nb4 Bh1 Qa7 Kf8 Qc5 Bg2 Qb5 Re7 Rg4 R3e5 Re4 R7e6 Nd8 Qa3 Re3 Rg5 Kb7 Bh3 Nd4 Qb2 Kb6 B3f5 Nf3 Re7 Re5 Bc8 Re4 Rge5 Kc6 Bb7+ Kb6 Ba8 Nb7 Bc5+ Kc6 Bd6
1B1RN3/qk3P2/Rb2BB1K/3q1Q2/rN6/1r1prqn1/2R1PR2/1br1rN2 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 f4 e5 fxe5 f5 Ra4 Na6 Ra1 Nb8 Kd2 Nf6 exf6 Nc6 Ke1 Ne7 Qd3 Ng8 Qd2 Bb7 Qd1 Bc8 Kf2 h5 Kf3 a5 Kf4 d5 Kg5 Kd7 g4 Kc7 c4 d3 b4 d2 c5 a4 c6 h3 Kg6 h2 f7 a3 g5 a2 Qc2 d1R Nc3 d4 Bb2 f4 Qf5 h4 Bh3 Rc1 Nf3 Ra4 Rf1 h1Q Nd2 f3 Rf2 Qd5 Nf1 Nf6 b6+ Kb8 c7+ Kb7 b5 Nh5 Ne4 Ng3 Nf6 Bc5 Ne8 d3 Bg4 h3 Bf6 Be6 c8R h2 Rc6 Be3 Rc2 Rh3 Kg7 Qg1 g6 h1R Rb2 Kb8 b7 Bb6 Rc2 Ka7 b8N Kb7 Nc6 Qg2 Ne3 Rhe1 Nb4 Rb1 Nf1 Rb3 Qh5 Qg1 Kh6 Rc1 g7 Re1 Rd1 a1R g8R Rc1 Rdd2 Rh4 Bh3 Re4 Qf5 Re3 Rc6 Qg2 Rdc2 Qg1 Rh2 f2 Rh8 Bc5 Ra6 Bd4 b6 Bc5 Nd2 f1Q Rf2 Qfg2 Nf1 Qgf3 Ra2 Kb8 b7 Bb6 Ng7+ Kc7 b8B+ Kb7 Rd2 Qa5 Rc2 Qgh1 Ra8 Qa7 Rg8 Bc4 Rd8 Qd5 Ne8 Qhf3 Nc7 Rbb1 Ne8 Ba2 Bg4 Rb3 Bh3 Qaa5 Ra6 Bb1 Qh7 Qac5 Be6 Qc7 Qf5 Qcc5 Bf4 Qc7 Bd6 Qb8 Bc7 Qa7 Bb8
1r1R1b1R/2BB3k/NP1q2R1/3N2Kn/1b2N1bB/5PN1/nb2b1p1/1bQ4b b - - 0 1 legal: proof: a4 b5 axb5 d5 c4 e5 cxd5 e4 e3 Nf6 f3 exf3 Bd3 f2+ Ke2 Ng8 h4 Qxh4 Qb3 f1B+ Kd1 f5 Nh3 a5 Ra2 f4 Ng1 f3 Ra1 f2 Kc2 Qh2 Qa4 Ra6 Qg4 Rf6 Qd1 Rf3 gxf3 Ke7 Nh3 Kd8 Ng1 Ke8 b4 Kf7 e4 Kg6 b6 c5 e5+ Kh6 d6 g5 e6 c4 b7 g4 e7 a4 e8N g3 b5 g2 b6 c3 d7 a3 d8B a2 Nc7 Ne7 Nd5 Bg4 Bf5 Bc4 Bd7 f1B Bc7 Ng6 d4+ Nf4 Ne2 Nc6 Ng3 Bfe2 Nd2 Nh5 b8N Kg7 Bb2 Bcd3+ Kc1 c2 Nde4 h6 Kd2 Kh7 Ke3 Nb4 Na6 c1B+ Qd2 Bc2 Bc3 Ba3 Qc1 Bb1 Be1 Bc5 Bf2 Rb8 Rd1 Bf8 Rd3 Ng7 Kf4 h5 Kg5 h4 Rc3 h3 Rc6 Bb2 Rg6 Bc3 Nf5 Qd6 Bh4 h2 Nfg3 h1B Ne7 Qc5+ d5 Qc6 d6 Nh5 Nd5 Bb2 Be8 Qc5 d7 Qd6 d8R Bbd3 Rb1 a1B Bd7 Na2 Rg8 Bc3 Rb4 Bab2 Rc4 Bb4 Rc6 Qe6 Rd6 Bb1 Rc6 Qe7+ Rf6 Qe6 Rfg6 Qd6 Rh8+
5nB1/1N2b2Q/n1p5/bqqr2b1/k3RNn1/1R1q2R1/1R1N2PP/1Bq1B2K b - - 0 1 illegal: No proof kernel
4qkQ1/R1Pp1N2/2b2B2/B2qB2b/nbPN2N1/4R2q/1n2n2r/K1NnR3 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 dxc5 f3 Bh6 a5 Bf4 h5 Bc1 f4 Bh3 Ra6 Bd2 Rf6 Bc1 Rf5 gxf5 Nh6 Bg4 hxg4 Qd6 Ng8 Qd3 Bb7 Qd1 Bc8 Kd2 g5 Kc3 f2 e4 f1B h4 a4 b4 g3 Kb2 g2 c4 g4 c6 g3 b6 f3 h5 f2 f6 Na6 e5 Nc5 f7+ Ke7 e6 Nb3 h6 Bb7 b5 Bg7+ Nc3 Bd3 f8R f1N h7 Bg6 Rf3 Bh5 Qd5 Nh6 Bd2 Nf5 Re3 Nc5 Ne2 g1Q Nc1 Bf8 N3e2 g2 Nd4 Qe8 Ba5 a3+ Kb1 Ba8 b7 Na4 b8B Qh2 b6 g1N b7 Ne2 Be5 Qh3 b8B Bb7 c7 Bc6 Ba7 a2+ Kc2 Nh2 Re1 Ng4 Qg2 Nf2 Qg8 Nd3 Bf6+ Kd6 e7 Ndb2 Kb3 Nfg3 B7b6 Nh1 Bc3 Nf2 Bba5 Nfd1 Kc2 Qf7 Kb3 Qd5 e8N+ Kc5 Be5 Bd6 Nf6 Bf8 Rb1 a1Q Ng4 Be7 Bf6 Kd6 Kc2 Qa2 Ra1 Qb1+ Kb3 Qg6 Ka2 Qgf7 Kb1 Qe8 Ra3 Bf8 Ka1 Be7 Rb3 Bf8 Rb7 Be7 Ra7 Bf8 Be5+ Ke7 Qg5+ Kf7 Qd8 Bb4 Qa8 Rg8 h8N+ Kf8 Nf7 Rh8 Bf6 Rh7 Nc2 Rg7 Bce5 Rg5 Qd8 Rf5 Nd4 Rf2 Bh8 Rg2 Qg5 Rf2 Bhf6 Rh2 Qg8+
1K3B1n/1n4q1/NQ3nP1/5p2/N1Rbn3/1R2RN1B/qB2Pn2/krb2n1N b - - 0 1 legal: proof: f4 c5 g4 e5 a4 exf4 d4 cxd4 g5 b5 axb5 a6 Ra2 f6 Ra1 f5 h3 a5 Ra4 Ra6 Be3 Bb7 Nc3 Bf3 Bc1 Rf6 gxf6 g5 Nb1 g4 Ra3 g3 Ra1 Bg4 hxg4 Ba3 Nd2 Bc5 Nb1 Bf8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 b4 h5 g5 d5+ Kb3 d3 Ka4 Kd4 c4 h4 c5 f3 b6 h3 Kb5 a4 f7 h2 b7 d2 c6 a3 g6 g2 c7 f2 Kb6 a2 Ka7 Na6 b8B Qf6 c8R Nh6 b5 Nc5 b6 Qg7 Qe1 d1N b7 Ne3 Bd2 Neg4 Bd6 Nf6 b8N Nb7 Nh3 g1B Na6 Rg8 Bg2 f1N Kb8 Be7 f8N Nf7 Qd1 Nh8 Nc3 Bf2 Rg1 h1N Ba3 Nhg3 Rb1 a1Q Qb3 Nge4 Nd7 Qa2 Qb6+ Bc5 Rb3 Be3 Be1 Bc1 Na4 Kc4 Re3 d4 Beb4 d3 Nf2 Kb3 Bh3 Bd4 Rgg3 Rd8 Ne5 Rf8 Nc3 d2 Nf3 d1N Nh1 Ndf2 Bc5+ Kc2 Na4 Rg8 Bcb4+ Kb1 Bf8+ Ka1 Rc4 Nd8 Bfe7 Re8 Bf8 Nb7+ Rc8 Re5 Rcc3 Rb5 Rg4 Rb1 Rb3 Ng5 Rh4 Bc5 Rd4 Nge4 Rc4 Bd4 Bb2+
2B4q/2pP1nn1/2K1B1n1/rR2b2P/qqkB4/Rr2R3/3n2R1/q2Q1NNN b - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 h4 d5 cxd5 g5 a4 h5 axb5 Bf5 Ra6 Bg6 Ra5 gxh4 Ra1 h3 Qb3 h4 Qd1 Bh5 gxh5 Bb4 Kf2 Ba3 Ke1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 d6 f5+ Kd5 a5 e4 h2 e5 a4 e6 f3 e7 f2 e8B a3 d7 h3 b6 a2 b7 f4 Bf7 f3 Ba6 f1Q Be6 f2 Be3 Qe1 Nd2 Bh6 Nf1 Nc6 b8N Ne5 Bc8 Nf7 Kc6 Ra5 d5 Kc4 b4 Bg7 b5 Be5 b6 Qb4 b7 Qf6 d8R Ne7+ Kd7 Qa4+ Nc6 Ng6 b8R Rh6 Bd4 Qh8 Re8 Qb4 Rb1 a1Q Rb3 Qa2 Rb5 Qaa4 Ng3 f1N Ne7 Nd2 Nf1 Rh7 Nf5 Rg7 Ra3 Rg8 Ba6 Rf8 Re7 Rb8 Bc8 Rb6 N5g3 Rb8 Nf3 Rb7 Rg1 h1N Rg2 h2 Kc6 Rb8 Nf5 Ng3 Ng1 h1Q Re8 Nge4 N5g3 Ned6 Re7 Nf5 Re8 Ng7 Re7 Qh3 Nh1 Qhc3 d6+ Kd3+ Kd5 Rb7 d7 Rb8 Ra2 Qa1 Kc6 Rb7 Bh3 Kc4 Ra3 Bh2 Re4 Be5 Ree3 Qbc3 Bg4 Qab3 Rd5 Rb4 Ra2 Qa4+ Rb5 Rb3 Ra3 Qcb4 Be6+
2K3bR/1P1Bb2R/2B2Qp1/b1N2r1k/3P2q1/Rnq1q3/3r1bBN/4qN1N b - - 0 1 illegal: No possible last move, all moves rejected
B6k/5b1r/1nNNP1rR/rr1QR3/b2b2B1/2B1Rb1K/2PN1pR1/4r2b b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 Kd2 g5 Ke1 f4 h3 Nc6 h4 Nce7 Bd2 Nf5 gxf5 g4 Bc1 Qg5 hxg5 Bg7 Nh3 Bh6 Ng1 Bf8 Kf2 Kf7 b4 Kg7 e4 a5 g6 d5 e5 h5 e6 a4 b6 g3+ Ke1 h4 b5 g2 Kf2 d3 b7 a3 b8N d4 b6 h3 b7 d2 Bb5 h2 Nh3 g1R Be8 d3 Bb2+ Nf6 Bc3 a2 Nc6 Bd7 b8R Rh7 Rb5 Rb8 Ng5 Kh8 Ne4 Bg7 Nd6 Nd5 f6 Nb6 f7 Rg5 Re1 h1B Re3 Bd4 Re5 Rg2+ Kf1 f2 Qh5 d1B Nd2 Bf3 f8R+ Kg7 Rb1 a1R Rf6 Ra5 Ra1 Kg8 g7 Rg6 Rae1 Rb7 Rg5 Rb8 Rg2 Rb7 Qd5 Rb8 Nb4 Ba4 Bc6 Bh5 Ba8 Rb7 Nb1 d2 Nc6 d1B Nd2 Bdf3 Re5 Nc8 R1e3 Rbb5 R5e4 Nb6 Re5 Rg5 Rh6 Bf7 Rh3 Rg6 Rhh5 Rhh6 Rh4 Kh7 g8B+ Kh8 Bh7 Be4 Ke2 f1R Rhh2 Rd1 Kf2 f3 Rhh5 Re1 Rh4 Rg4 Bf5 Rg6 Bg4 Rh7 Kg3 f2 Rh6 Bf3 Kh3
n2bk3/1Q1b3q/b1N1BP2/2Nb2K1/2N2P2/3pn1B1/1RRqb1B1/1nRb1R2 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 f4 axb4 e5 f6 exf6 Nh6 g3 Ng8 g4 g5 Na3 h5 Nb1 Ra5 h3 Rf5 gxf5 b5 h4 g4 Bg2 Rh7 Bh3 Rg7 Bf1 Rg5 hxg5 Qa5 Kf2 Qb6 Ke1 Qd8 Ke2 e5 a4 d5 c4 h4 g6 d3+ Ke3 b3 g7 b2 c5 b4 c6 d4+ Ke4 b3 a5 d2 a6 h3 c7 h2 a7 g3 a8B g2 Nc3 b1B+ Qc2 d1B Ra6 b2 Rb6 Qe7 Rb3 Nh6 g8N Nd7 Na4 Qh7 Be3 Ba6 Bf2 Nb6 Bd5 Ng4 Bg3 Be7 c8R+ Bd8 Be6 Na8 Nf3 g1N Ne7 Ne3 Nc5 Ne2 Nc6 Ba2 Bg2 b1B Rc3 B2c4 Rf1 h1B Nd2 Bba2 Qb1 d3 Re1 Bcb5 Rc2 Bac4 Rf1 Ba2 Ne7 Bd7 Nc6 Bb3 Nc4 Ba2 Kf3 e4+ Kf2 Nc3 Qb7 Nb1 f7+ Kf8 Rc7 Be2 Rc8 Bb3 Rcc1 Bbd1 Rc2 Kg7 Rc1 Kf6 f8R+ Kg7 Rf7+ Kg8 Rg7+ Kf8 f6 Ke8 Rb8 Bc8 Rc7 Bd7 Bh2 Nc2 Kg3 e3 Bgh3 Bd5 Bg2 Bef3 Rcc8 e2 Rc7 Bh5 Kh4 e1Q+ Bg3 Ne3 Kg5 Qc3 Qa7 Qc2 Rb2 Qd2 Qb7 Bhe2 Nb8 Qe7 Nb6 Bdf3 Nb3 Bc8 R7c2 Bd7 Nc4 Bd5 Nc5 Qh7 Nc6
2N4b/2RN1b1B/1nRKb2P/PRNb1bn1/b6B/4r3/1Bpn1nk1/3N1Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Bh3 exf4 Bg2 Na6 Bf1 Nb8 h3 g5 Qa4+ b5 Qc2 Ra6 Qd1 Rah6 Qc2 h4 Qd1 Rh5 gxh5 g4 Ba3 g3 Bb2 Qg5 Bc1 Qg4 hxg4 Bd6 Qb3 Bc5 Qd1 Bf8 d4 Kd7 Kd2 Kd6 Kd3 f5 e4 c5 a4 g2 g5 c4+ Ke2 f3+ Ke3 f2 Kf4 c3 g6 b3 h6 h3 a5 h2 g7 b4 Nf3 g1N Be3 b2 Qc1 b3 Bd3 f1N Ne5 Be6 Nd7 Nd2 Qf1 Nf6 g8N Ng4 Ne7 Nf2 Ra2 Ngf3 e5+ Kc7 Ra4 Bg7 Nc8 Ng5 d6+ Kc6 Rc4+ Kd5 Rc6 Re8 Bc2 Bf7 e6 Bh8 e7 Be6 Rg1 h1B Nc5 Bf7 d7 Bg2 d8R+ Nd7 Rh1 Bf3 Rh5 Bg4 Na3 b1B Nc4 Ba2 Nb2 Bh3 Nd1 b2 Bd3 b1B Bc2 Bb3 Rc7 Ba4 Rc6 Nb3 Bc1 Nd2 Bb2 Ba2 Bd3 c2 Rc7 Rg8 Rf8 Nb6 e8N Rg6 Rg8 Re6 Rg6 Re3 Rgc6 Bg4 Ng7 B2b3 Nge6 Bf3 Nf8 Bc4 Nfd7 Be6 Kg3 f4+ Kh4 Bg2 Bh7 f3 Kg3 Bd3 Kf4 Bdf5 Ba1 Ng4 Bb2 f2 Qe2 f1B Qe1 Kc4 d5 Nf2 d6 Be2 Qf1 Kd5 Nb8 Bed3 d7 Bc4 d8B Bf7 Nbd7 Ba2 Bc1 Kd4 Be7 Bae6 Ba3 Bgd5 Bd8 Nge4 Bh4 Ng5 Bb2+ Rc3 Qa6 Bfe4 Ba1 Ba2 Nb7 Ngf3 Nb2 Re3 Qf1 B2b3 Rb5 B4f5 Nbc5 Ng5 Nd1+ Kd5 Nc3+ Kd4 Bb2 Bbd5 Nb7 Re2 Nd1+ Kd3 Qh1 Re3 Nbc5+ Ke2 Bg7 Bde4 Ke5 Bf3+ Kd6 Bfd5 Qe1+ Kf3 Bb2 Kg2 Qf1+
1nb1K1R1/4pQ2/2P3B1/6r1/1PN2n1N/rRqB1p1B/R1bnkBNb/3n4 b - - 0 1 legal: proof: f4 b5 e4 d5 d4 c5 h4 g5 a4 gxh4 axb5 Na6 exd5 cxd4 g4 Qd6 f5 Qc6 g5 Qg6 fxg6 Nb8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 b4 a5 c4 f5 g7 h5 g6 h3 b6 h2 d6 h4 b7 a4 d7 f4 d8N a3 Ra2 h3 Qh5 d3 Ne6 d2 Nf3 Ke3 Bd3 Ra7 Nh4 Nf6 g8B Nd5 Bh7 Bh6 g7 Rg8 Bhg6 f3 Rf1 h1N Nf4 h2 Bb2 d1N Nd2 Ng3 Re1+ Kf2 Re3 h1B Bd4 Nf1 Nfg2 Nf4 Kb5 Bg5 c5 Bf5 Nc4+ Nd2 c6 Bf6 Bc5 Be5 Kb6 Bc8 Qf5 Ra5 Qf7 Ra4 Rb2 a2 Bd4 a1Q Ra2 Ra3 Bc5 Na6 b8R Qc3 Ra8 Nb8 Bd4 Rh8 g8B Rh5 Bc5 Bf5 Kb7 Be4 Kc8 Rg5 Kd8 Bf5 B8h7 Be4 Bf1 Bc2 Ke8 Bd6 Bfd3 Bc7 Bdf5 Kf1 Rd3 Ke2 Bf2 Bd6 Nge3 Bg2 Bh3 Qa1 Rb3 Qc3 Bd7 Bh3 Neg2 Bg4 Bdf5 Bh5 Bh3 Bg4 Be4 Bc8 Bhg6 Nd5 Bef5 Bh2 Be4 Nf4 Bef5 Ne3 Bd3+ Kd1 Qf6 Bg4 Nb6 Nd7 Kd8 Bf5 Rc8 Nb8 Qf7 Be6 Nc4 Bf5 Kc7 Be6 Rg8 Bc8 Bde4 Ke2 Kd8 Nd1 Ke8 Ra7 Bef5 Ra3 Bd3+
n3Nb2/1K2n3/3Pq1BB/p1k2N2/1RpN2bR/2PN2Q1/2b2r1q/1RbB3r b - - 0 1 legal: proof: e4 d5 h4 b5 a4 f5 axb5 g5 hxg5 dxe4 f4 exf3 g4 Bh6 gxf5 Bf8 Kf2 Kd7 Ke3 Kd6 Kd4 a5 b4 h5 b6 c6 g6 f2 b7 h4 b5 e6 b6 h3 c3 h2 g7 Na6 b8N Qh4+ Qg4 Qh7 f6 Bb7 f7 Qh5 Nf3 Nh6 g8B Nc7 Ne1 Qh4 Na3 Qg3 Be2 f1Q Na6 Rc8 Rb1 Qf5 Nd3 Na8 Bh7 Ng8 Bd1 Ne7 Nc7 e5+ Kc4 c5 Kb5 e4 Ne8+ Kd5 Bg6 e3 Nc2 e2 Nd4 Qe6 Nf5 e1B Rb4 Qg2 Qg3 c4 Rb1 Bc6+ Ka6 Ba4 Kb7 Bc2 Rb4 Bf2 Rb1 Be3 Rb4 Bg7 f8R Rh5 Rh8 Bf8 Rf1 Rh3 Rh4 h1B Bf3+ Qe4 Ne5 Rd8 d4 Bd2 Ka7 Bdh6 b7 Qf2 b8N Qg1 Bg4 Bf3 Kb7 Rh1 Nbc6 Qh2 Bf4 Rd6 Rfb1 Re6 Nd3 Bfd1 Be5 Bc1 Bg7 Qe1 Bh6 Re2 B4h5 Rf2 Bg4 Qe6 B4h5 Be2 Bg4 Ke4 d5 Bed1 d6 Kd5 Ncd4 Be2 Nb2 Kc5 Bf3 Bed3 Bd1 Be2 Qd3 Bh5 Qg3 Bg4 Nd3+
8/1NkprNB1/rr1N2Kb/3r1B2/nP1p1RPq/1RnQ3B/6bB/1R5q b - - 0 1 legal: proof: e4 c5 d4 b5 a3 b4 axb4 cxd4 h4 g5 hxg5 f5 exf5 a5 b3 a4 Kd2 axb3 Ke2 Bh6 Ke1 Bf8 Kd2 h5 Kd3 e5 Ke4 b2 g4 h4 c4 h3 f4 h2 g6 Bh6 g7 Ra5 c5 Ra4 f6 Qc7 Kf5 Kd8 f7 e4 f8R+ Ke7 c6 Kd6 Nf3 e3 Nbd2 b1R Ra3 e2 Kg6 e1R f5 Bb7 f6 Rb2 f7 Nf6 g8B Rc2 Ne5 Bc8 Nb3 Bb7 Qd3 Rc5 Na5 Nd5 Rb3 Qd8 c7 Nc3 c8N+ Kc7 Nd6 Na6 Bf4 Qh4 Bh3 Bg2 Rf1 h1Q Bh2 Re2 Rfb1 Rb5 Rb8 Rd5 f8B Re4 Bg7 Nc5 Rf8 Ra3 Rf3 Re3 Be6 Rb8 Rf6 Rb6 Nab7 Raa6 Nef7 N5a4 Rf4 Re1 Bf5 Re4 Rff1 Re7 Rf4
1r4bR/3B1r1p/2n1N3/pQP1kN1q/2K2R2/rR3B2/1PBqBN1b/4bq2 b - - 0 1 legal: proof: e4 b5 d4 f5 f4 fxe4 a4 g5 axb5 c5 dxc5 Bg7 Bd3 Bh6 Bf1 Bf8 g4 Nc6 h4 Bg7 f5 Ba6 Bf4 gxf4 g5 Ne5 h5 Ng6 hxg6 Bf8 Qd4 Bb7 Qd1 Bc8 Kd2 e5 Kc3 Ke7 c6 d5 b6 Kd6 c7 a5 f6 e3 g7 f3 f7 e2 b7 e1R b8R e4 g6 e3 Nd2 d4+ Kc4 d3 Qe2 f2 Nb3 d2 Ra4 d1Q Nd4 Bd7 c8B Qh4 Rh3 Qh5 Nf5+ Ke5 c3 Nf6 g8B Kf4 g7 Bd6 f8N Qd2 Bd5 Ng4 g8B Be6 Bd7 Ra1 Re8 Bf7 Ne6+ Ke5 Bf3 Rb8 Qd3 Ra2 B1e2 f1Q Rg3 Ra3 Nh3 Rb7 Nf2 Bc7 Kc5 Ra7 Qb5 Bb8 c4 Bc7 Bd3 e2 Bc2 e1B Be2 Bb8 Rb3 Rb7 Nc7+ Be6 Rf8 Bd5 Ne6 Bc7 Rd8 Rb8 Bf7 Rf8 Bg6 Rf7 Rh8 Nf6 Bf3 Ng8 Bd3 Ne7 Bde2 Kf6 Rab4 Bh2 Ra4 Qdh6 Kd4 Nc6+ Kd3 Q6g5 c5 Ke5 Rf4 Qgh6 Rc3 Ba2 Rb3 Q6g5 Kc4 Qgh6 Rd4 Qd2 Rf4 Qhh3 Nc7 Nd4 Nh4 Rbf8 Bc2 Re7 Nf5 Ree8 Bd1 Qh5 Bc2 Qb4+ Kd3 Rb8 Rc3 Bg8 Ne6 Rf7 Rb3 Qd2+ Kc4 Nc6 Rd4 Qhh6 Rg4 Qh5 Rf4
3r1BNb/B5P1/3R1rb1/1r2Bp2/bb2P3/kR1q2NK/pb1N1R1n/Q2R4 b - - 0 1 illegal: No possible last move, all moves rejected
R2Q1RB1/6R1/Nr3p2/2Bb3k/1rr2BP1/pN1q2Pr/1N4nr/2qR2Kb b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 b4 h5 b6 e5 b7 a5 g3 a4 d5 h3 b5 e4 Kd4 a3 Ke3 f6 c4 Kf7 f3 Kg6 Kf2 h4 b6 h2 c5 e3+ Kg2 e2 d6 e1Q c6 Ra4 c7 Nh6 d7 Rb4 Nc3 Nf5 Nge2 Kh5 Na4 Nc6 b8N Bb7 c8R Ne5 Nb2 Bd5 b7 Ng4 Na6 Rb6 b8B Nfe3+ Kh3 Rb4 Bd6 Ng2 Ra8 Rb6 Rb1 Rh6 Rg1 h1B Nd4 Rh8 Nb3 Rh7 Qe2 d1R Bcf4 d2 Bc5 Rc1 Qe7 d1R Bc4 Rd4 Qd6 Qd2 Rd1 Qc7 d8R Qd3 Rf8 Rh8 Bb5 Rb4 Qd8 Rcc4 Bd7 Qc6 Be6 Qc7 Bh6 Qf4 Bg8 Qc1 Bf4 Ne5 Kh2 h3 Kg1 h2+ Kf2 Kg6 Rf7 Rh3 Rg7+ Kh5 Re1 Qcc3 Rbd1 Qc1 Re2 Ng4+ Kf1 Qdb1 Re8 Qbc2 Rf8 Q2b1 Re7 Qd3+ Re2 Nh4 Ke1 Bg2 Re7 h1R+ Bg1 Qdb1 Rg7 R1h2 Bc5 Bh1 Kf1 Ng2 Kg1 Qd3 fxg4#
7b/1n1r1q2/B4Q1B/1K2NR2/BBpRPp2/N1P2n1q/r2q1R2/k1n3Nn b - - 0 1 legal: proof: f4 a5 d4 e5 dxe5 b5 a4 g5 g4 gxf4 axb5 Qe7 b4 Bb7 h3 Bf3 g5 Bg4 hxg4 axb4 Bb2 Qf6 Bc1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 f5 e4 c5 b6 h5 b7 d5+ Kb5 c4 g6 d4 g7 b3 g5 h4 g6 d3 Na3 d2 Ne2 h3 Rb1 h2 Rg1 h1N Ng3 f3 Ra1 f2 Rg2 b2 Qe1 d1Q Qe3 b1N Qf4 Q8d3 Ne2 Rh7 Ng1 Nc6 b8B Nd8 Bd6 Nh6 g8N Qh3 g7 Ng4 Ne7 Qd2 g8R Nb7 Ng6 Bg7 Rf8 Nh2 Bb4 Bh8 Be2 f1Q Rf2 Ra7 Bd1 Nf3 Rd8 Ra6 Rd4 Rd7 Qh6 Qg5 Be3 Nbd2 Qh4 Qd8 Bh6 Nb3 Ra2 Nc1 Qf4 Kf7 e6+ Kf6 e7 Ke6 e8B Qg5 Qh4 Qd2 Ne5 Ra4 Rb2 Ra6 Nb1 Ra1 Na3 Ra2 Rg2 Qff2 Rg5 f4 Rf5 Qfg2 Nd3 Qg7 Ne5 Qf7 Ka4 Rc7 Bb5 Rd7 Ba6 Rd5 Ba5 Kd6 Qg5 Kc5 Qf6 Rd7 Rd6 Qdd5 Bb4+ Kd4 c3+ Ke3 Bc2 Kd2 Bb1+ Kd1 Rf2 Qd2 Bd3 Nb3 Rd4 Kc1 Kb5 Kb2 Bc2 Ka1 Bd1 Nc1 Ba4
kBq1R3/Qb4K1/N5nP/1prR1b1N/R1q1B1q1/p5q1/1B1P1R1b/r2N4 b - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 f5 exf5 Na6 a3 Nc7 a4 Nd5 a5 Nb6 axb6 d5 cxd5 hxg4 Ra4 cxb4 Ra3 Qd6 Ra1 Qd8 Ke2 Kd7 Kd3 a5 Ke4 g5 Ke5 e6 f4 g3 h4 g4 d6 Kc6 d7 Kb7 f6 g2 f5 b3 h5 b2 f7 a4 h6 g3 f6 Qe7 d8R Qd7 Nc3 b1B Nge2 g1Q Rh5 g2 Re8 Bf5 Nf4 Ne7 Bd3 Qf1 Bb2 g1Q Be4+ Kb8 b7 Qg4 Qf3 Qc4 Nd1 Rg8 Qe3 Rg5 Qb6 Qdc6 Qd8 Ka7 b8N Bb7 Qd6 Qc8 Na6 Bg7 f8R Bh8 Qd8 Ng6+ Kd6 e5 f7 Rb8 Qb6+ Ka8 Rh2 Rh5 Rf2 Rh1 Nh5 a3 Rc1 Bg7 Rd8 Bf6 Rfe8 Bh4 f8B Bg3 Rc3 Bh2 Rb3 Re1 Rb4 Rg1 Bg7 Rf1 Ra4 Rg1 Bg2 e4+ Bge5 e3 Be4 e2 Bg3 e1Q Bf4 Nh4 Ke7 Ng6+ Kf6 Qe3 Rd5 Qeg3 Kg7 Rf1 Ne3 Ra1 Bd6 Qe6 Nd1 Rc8 Bb8 Rc5 Rf1 Qc6 Rf2 Qc8 Qa7#
Q1R1q2N/2N1kn2/B1P2rq1/r1BR1B1n/5n1K/2brP1p1/R2p4/1r2NR2 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 h3 f5 Ra4 g5 Ra5 Bb7 Ra1 Bf3 gxf5 g4 Be3 g3 Bc1 Bg4 hxg4 Qg5 Bg2 Qf6 Bf1 Qd8 b4 h5 c4 d5 e3 a5 c5 h4 f6 a4 g5 a3 c6 d3 g6 a2 b6 f3 f7+ Ke7 g7 d4 b5 h3 b7 h2 b6 Na6 b8R Nf6 g8B Qe8 b7 Rh6 Qa4 Bg7 f8N Nc7 Be6 Nh5 Bf5 Nb5 Nc3 Nd6 Ba3 Rf6 Rc8 Ra5 b8R f2+ Kd1 d2 Ke2 d1N Kf3 d3 Kg4 d2 Kh4 Nb2 Nb5 Nd3 Nf3 Ndf4 Ne1 Qg6 Be2 f1Q Bc5 Qf3 Qa3 Qe4 Nc7 Qe8 Rf1 h1R+ Bh3 Bh8 Ba6 Q4g6 Rb5 Rg1 Bf5 Bg7 Rab1 a1R R1b2 Rc1 Ra2 Rc3 Ba7 Rd3 Rd5 Rf7 Bc5 Bc3 Nfe6 Rf6 Ng5 Rg2 Nf7 Re2 Nf3 Re1 Nh8 Rc1 Ne1 Rb1 Qb2 Qh6 Qb7 Qhg6 Ba7 Nf7 Qa8 Nh3 Bd4 N3f4 Bc5+
B2k2Bn/2Prp1qB/3q3b/1N2pr1R/qQ4N1/RbK3R1/1NR4P/2b4b b - - 0 1 legal: proof: e4 d5 g4 c5 d4 h5 gxh5 a5 b4 f6 Bf4 Na6 Bc7 axb4 Be5 fxe5 dxc5 d4 Nd2 Nc7 Nb1 Nd5 exd5 Bd7 Qd2 Bg4 Qd1 Bc8 Kd2 g5 a4 b5 c4 g4 f4 g3 a5 d3 c6 b3 h6 b4 d6 b2 c5 b3 h7 g2 d7+ Kf7 c7 Qe8 d8N+ Kf6 a6 Bg7 a7 Qb5 c6 Bh6 Na3 b1Q Nc4 b2 Nf7 Rb8 a8B Qb7 Qa4 Qb5 Nf3 g1B Kc3 d2 f5 d1Q Ra3 Bge3 Qb4 Qba4 Bd3 Bc1 Rg1 Rb7 Nd4 Be6 c8B Rd7 Nb5 Qa2 Bb1 Qd6 Rg3 Qa1 Bd3 b1B+ Nb2 Bb3 Bc4 Be4 Bd3 Bhg5 Nh6 Bh1 Ng4+ Kf7 f6 Ke8 f7+ Kd8 Bb1 Nh6 Ba2 Re8 h8R Bgf4 f8R Nf7 Rh5 Nh8 Rff5 Bg5 Rf2 Rf8 Rc2 Bh6 Bb1 Rf5 Ba2 Rb7 Be6 Rd7 Bg8 Bcg5 Bh7 Qg1 Rcg2 Bc1 Re2 Bd1 Bag8 Bb3 Rc2 Qe3+ Nd3 Qg5 Nb2 Qg7 c7+
2N1b2K/bQ6/2q2P1R/R2bR1k1/1B1qp3/2b2bpP/2rBNNR1/1B2r1r1 b - - 0 1 illegal: No possible last move
nb1K4/pbRB3n/qP5B/3k1q2/NNR3NQ/RN1np1P1/b7/1q2B1n1 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 e4 fxe4 f4 cxd4 g4 Nh6 f5 Na6 f6 Ng8 Bg2 g5 Qe2 h5 Qd2 Rh7 Qe3 Rg7 Qh3 Rb8 Be3 Rb7 Bf1 Rc7 Bc1 Rc5 Qb3 Rf5 gxf5 g4 Qf3 g3 Qe2 g2 Qd1 Rg3 hxg3 Bg7 Qg4 Bh6 Qd1 Bf8 Kf2 Kf7 c4 d5 b4 e5 c5 e3+ Kf3 d3 b6 d2 b5 e2 c6 e1Q c7 d4 b7 e4+ Kf4 h4 Kg5 d3 b8N e3 b6 h3 Ne2 g1Q Nd4 h2 Nc3 Ne7 Qg4 d1B Nbc6 d2 Qh4 Ng6 Ra3 Bd6 Bh3 Nf8 Nb3 Qgf2 Nb4 Bb7 c8R Nc7 Na4 Na8 Rc4 Bb8 Bb2 Qd6 Bc3 Qd3 Rf1 h1N Bg4 Ke8 f7+ Ke7 f6+ Kd6 Bd7 Be2 Rc7 Qeb1 Rc1 d1N Be1 Nb2 R1c3 Qa6 R3c4 Ng6 f8N Nd3 Nh7 Nf8 f7 Qf5+ Kh6 Bg4 Kg7 Nhf2 Nf6 Nh7 f8B+ Ke5 Kf7 Nh3 Ke7 Ng1 Bh6 Bgf3 Nd2 Bfd5 Kd8 Bg8 Ng4+ Kd6 Re4 Bb3 Rec4 Ba2 Be8 Ke6 Nb3 Kd6 Bb5 Ke6 Bd7+ Kd6 Nc2 Kd5 Nb4+
2qqn3/n1pNNPQR/4BB2/N2n4/Kp1R4/1n2Bk2/2q1R1PB/1b1q3r b - - 0 1 illegal: Other
1BRR1q2/p1Qb3b/1Pb2p2/4n2n/q1BR3k/5B1N/PNN2Rn1/1K1b1n2 b - - 0 1 legal: proof: f4 c5 d4 h5 c4 e5 g3 exd4 Nd2 f6 Nb1 d6 e4 Kd7 e5 Na6 e6+ Ke7 Nc3 Nh6 Qe2 Ke8 Qe3 Be7 Qf3 Rf8 Nb1 Ng8 Qb3 Rf7 Qd1 Bf8 e7 Kd7 h4 b5 g4 Bb7 g5 Bf3 Be3 Be2 Bd2 bxc4 Bc1 Rb8 Bd2 Rb3 Bc1 Re3 g6 Re5 gxf7 g5 fxe5 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qe8 Na3 Qc8 Nb1 Qd8 Kd2 Ke6 Kc2 Kf5 e8R d5 f8R c3 b4 c4 b5 g3 e6 Kg4 b6 h4 g6 g2 g7 h3 e7 h2 Be3 d3+ Kc1 d2+ Kc2 d4 Qe1 d1B+ Kc1 c2 Nh3 g1Q Bg2 d3 Nc3 d2+ Kb2 c1N Bd5 Bd3 Bd4 Bh7 Ba8 Nd3+ Kb1 Ba4 Nb5 d1B Nf4 c3 Nd5 Nac5 Nf4 Nd7 Na3 N7e5 Nc2 Nh6 g8B Bd7 Nh3 Nf5 Bc4 Ng3 Bf3+ Kh4 Rh8 Qa8 Rc8 Nf4 e8N Nh5 Nd6 Qc6 Qd2 Nf1 Qc1 Qg7 Rhd8 Qf8 Be3 Qa4 Bf4 Be8 Rg1 h1B Rg2 Bd7 Rf2 Bg2 Bg4 Bgc6 Bf3 Nd3 Bh2 Ne1 Qf4+ Bg4 Qe5 Ng2 Qe7 Be6 Qc7 Bg4 Bb3 Be6 Nc4 Bed7 Nb2 Qfb4 Qe5 Bg6 Kc1 Qf8 Ne3 c2 Bc4 Be2 Qb8 Bge4 Qb7 Bef5 Bb8 Bh7 Qc7 Bg8 Nbd1 Bh7 Kb2 c1N Nc2 Nfe3 Rb1 Nf1 Ka1 Nd3 Nb2 Ne5 Rd1 Ng4 Rd6 Bd1 Kb1 Ne5 Rd4+
2BRKRB1/4N2n/Nn3R1p/NP2Qr2/2Rp4/3pBk1r/1Pbq1r2/q1b5 b - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 e5 d4 cxd4 a4 b5 axb5 f6 f4 f5 exf5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 c4 f3 g4 f2 f6 d3 Kf5 a4 c5+ Kd5 g6 a3 f7 h6 c6 a2 g5 Nf6 c7 Bd6 f8R Be7 g7 d6+ Kg6 Ke4 Kf7 d5 g8R d4 g6 Nc6 g7 Na7 Qe1+ Kd5 Nh3 Bg4 c8N Nh7 Na3 Qa5 Nc4 Qd2 Na5 Bd1 Ke8 Bc2 Ng5 Bb4 Bh3 f1R Ne4 Rf5 Rb1 a1Q Rf1 Rh5 Bf5 Rh3 Nc5 Rb8 Rf3 Rb6 Rf2 Rf6 Na6 Bc3 Bd7 Rf5 Qe7 Bb4 Qg5 Ke4 Ne7 Bd6 Bc8 Bf4 Rf6 Be3 Rgf8 Bf4 g8B Be3 Re2 Kf3 Qg7 Bg5 Ree6 Bf4 Rd6 Be3 Rd8 Bg5 Bce6 Nc8 Bd7 Nb6 Bc8 Qc3 Be3 Qd2 Rc1 Bf4 Bc4 Rg8 Qh8 Rg2 Bg8 Rf2 Qg7 Bb1 Rc3 Bc2 Rc4 Bb1 Re6 Qc1 Bd2 Bc2 Qe5 Bg5 Ref6 Qe1 Bb4 Bc1 Bd2 Qd1 Bg5 Qd2 Be3
b3QRBr/2K5/4PN2/3N3n/1p2p1k1/2nB2P1/R2p2rB/rRqqN1bB b - - 0 1 legal: proof: d4 a5 h4 d5 f4 c5 b4 g5 hxg5 axb4 e3 e5 e4 Qd6 exd5 cxd4 Ba3 e4 Bc1 Qe5 fxe5 Bh6 Qf3 Bg7 Qd1 Bf8 Ke2 Ke7 a4 b5 c4 h5 d6+ Ke6 d7 Kf5 d8R f6 g6 h4 g7 d3+ Ke3 h3 Kd4 h2 Kd5 b3 a5 b2 c5 b4 a6 Ra7 e6 Bd7 c6 Be7 c7 Bd6 c8B Bc5 Nc3 b1Q Qa4 Nc6 Bf4 d2 Ra2 Kg4 Nf3 f5 Ne1 Qd1 Rf8 Bg1 Kd6 Nf6 g8B Ne7 Nd5 Bc6 Bb7 Ra8 a7 Nh5 Bba6 Rc8 Bad3 Ba8 Bg3 f4 Qe8 f3 Be5 f2 Nf6+ Kf5 Bfe2 f1Q Bf3 Nd5 Kd7 Nc3 Bb8 Bd5 a8N Bb7 Nc7 Ba8 Ncd5 Qc1 Nc2 Qfd1 Ne1 Rc7+ Kd6 Rg7 Bc7 Ba7 Rg1 h1R Rf1 Rg3 Kd7 Rg4 Bh2 Bg1 Kc7 Rf4 Bfe2 Rf2 g3 Kg5 Bg4 Rg2 Bf3 Qb1 Qb5 Qe2 Qa5 Ba7 Qa4 Rf2 Qe8 Rg1 Bh1 Rfg2 Nc2 Bd4 Nh7+ Kg4 R1f7 Rf1 Rf3 Bg1 R3f5 Rd1 Rf1 Qb2 Re1 Ra1 Rb1 Qd1 Ne1 Qbc1 Nhf6+
1q2RN2/P1q4b/B1BnB1Rr/2Pqp2R/1N3pn1/Kp6/BNk1b3/6Qr b - - 0 1 legal: proof: d4 a5 e4 g5 b4 axb4 e5 c5 dxc5 f6 exf6 Ra3 Bb5 Ra4 Bf1 Ra8 g4 Bg7 f4 Ra5 h4 Kf8 f5 Nc6 Bf4 gxf4 g5 Ke8 g6 Ra8 Ne2 Bh6 Ng1 Bg5 hxg5 Nb8 c6 b5 Kd2 e5 Kc1 h5 Kb2 d5 a4 h4 c4 d4 f7+ Ke7 f8R Kd6 f6 Kc5 a5 d3 c7 Kd4 f7 d2 c5 h3 a6 h2 a7 Qe7 g7 Na6 g6 Nh6 g8B Bf5 c8B Nc7 g7 Ne8 Nc3 Qc7 Nge2+ Kd3 Ra6 Ng4 Bd7 Rh7 Rh6 Nd6 Na4 Re8 Rf6 Re6 Re8 Rh8 Qe1 d1B f8N Rh3 Rh6 Bh7 Bc6 Rf6 Ka2 Kc2 Nc1 Rg6 Bfc4 Be2 Nd3 Rh5 Bge6 Rf6 Rf1 h1Q Qa1 Qd5 Rh1 Rh4 Qg1 Rh5 Rg6 Rh3 Rg5 Rfh6 Rg6 R3h5 Rh3 Rh4 Rg3 Rh1 Rh3 b3+ Ka3 b2 Rh5 b1Q Ba2 Rh2 Bc8 Rh3 g8B Rh1 Ba6 Qb6 Be6 Qc7 Nc3 b4+ Ka4 Qe1 Nd1 b3 N1b2 Qb8 Ka3 Qa5+ Ba4 Qab6 Bc6 Q6c7 Nb4+
1q5b/2P1pK2/P4B1p/r1rQRNb1/2n3Nk/3NBB1b/1R2pn1R/3b2B1 b - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 a5 b4 axb4 g4 c5 dxc5 Ra5 f5 Ra8 h4 b5 g5 Qb6 Qd3 Qf6 Qd1 Kd8 gxf6 g5 f7 g4 Qe2 Ra6 Qf3 Rg6 Qd1 Rg5 hxg5 Ba6 Be2 Bb7 Bf1 Bc8 Kf2 d5 Ke3 d4+ Kf4 b3 Ke5 g3 c4 b2 a4 h6 f6 b4 c6 d3 a5 g2 c5 e3 a6 e2 g6 b3 c7+ Kd7 Ra2 d2 Rh2 Rh7 Na3 b1R Nf3 g1B Nb5 b2 Nd6 Rg7 Nf5 Rh7 Bg2 Be3 Ne1 Rh8 Nd3 Rh7 Bf3 Bg7 f8B Bh8 g7 Bg5 f7 Nf6 g8N Ne4+ Bg7 Nf2 f8B Ra1 Bf6 b1Q Rb2 Ra5 B8g7 Nc6+ Kd5 Ke8 Qh1 d1B Be3 Bd7 c8R+ Kf7 Rcb8 Kg6 R8b5 Ne5 c6 Bc8 c7 Nc4 Bfd4 Bd7 Bgf6 Rf7 Bc5 Rf8 Ba7 Rb8 Rc5 Rbb5 Qg2 Be8 Ke6 Bc6 Re5 Rc5 Qg4 Bb5 Qd4 Bba4 Qd5 Bc6 Rc2 Qb8 Rb2 Bca4 Bg7 Bb5 Nf6 Be8 Ng4 Bea4 Rg2 Kh5 Kf7 Bd7 Bf6 Nh1 Bg1 Nf2 Ng7+ Kh4 Rh2+ Kg3 Ne3 Bh3 Ng4 Kh4 Bb6 Rc6 Be3 Rcc5 Nf5+
r1bR1k2/R4BN1/6pK/2q1B1p1/3p1NP1/BqnnN1Q1/q1bnR2P/4R3 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 b5 axb5 h6 Qd2 d3 Qg5 hxg5 f3 d5 Ra5 e5 Ra1 a5 Bd2 d4 Bc1 Bd6 f4 Ra7 Kd1 Rd7 Kd2 Bc7 Ke1 Rd5 exd5 e4 Bd2 Nd7 Bc1 Be5 fxe5 Nb8 Kf2 f5 Kg3 a4 b4 e3 c4 d2 c5 d1Q b6 e2 d6 e1N b7 a3 b5 a2 b6 Nc6 b8B Rh4 e6 Nf6 b7 Qd2 d7+ Kf8 e7+ Kg8 e8N Rh5 Na3 Q8a5 d8R Kf8 Ne2 Nf3 Nc2 Qdc3 Ne3 Qc4 Nf4 Nb4 c6 Qb3 c7 Nfd5 Ba3 Qc5 Bc4 Rh8 Rhe1 Nc3 Bf7 Nd2 Re2 Rg8 Rae1 a1Q Kh3 Nd3 g3 Be6 c8R Qaa2 Be5 Bd7 Ra8 Bc8 b8Q Rh8+ Nh5 Rg8 Ra7 f4+ Rad7 f3 Kg4 f2 Nf4 f1B Kh5 g6+ Kh6 Bh3 Ra7 Bhf5 g4 Nc1 Qa8 Bc2 Qf3 Nd3 Qg3 Rg7 Bg8 Rb7 Bc4 Rb8 Bf7 Ra8 Ng7#
Q1q2N2/1r2rN1p/B4k2/3Kp1bR/pB2RR2/2P2n1P/rqB3q1/n4RN1 b - - 0 1 legal: proof: b4 c5 a4 f5 g4 f4 bxc5 b5 axb5 d5 e4 dxe4 f3 Bf5 gxf5 exf3 Kf2 Kf7 d4 e5 f6 g5 c3 a5 d5 a4 d6 g4 b6 Be7 c6 Nh6 b7 Nd7 b8R Ra7 c7 Re8 c8B Rb7 Ba3 Qc7 Bd3 Nc5 d7 Nb3 d8R Nf5 Bc2 Nh4 Rd4 Qc5 Nd2 g3+ Kf1 f2 Ke2 f1R Kd3 f3 Ke4 f2 Nc4 g2 Qf3 Rc1 Bb4 f1Q Nd6+ Kg6 f7 Qfb5 Rb1 Bg5 f8N+ Kg7 Ra8 Ree7 Nf7 Na1 Ra6 Rd1 Rf6 Rd2 Rf4 Qcc4 Rf1 Qe6 Ba3 Qb2 Bb4 Qf5+ Kd5 Kf6 Qe4 Rf2 Rc4 Nf3 Rd4 Ra7 Ba6 Rab7 Qe3 Re2 Rde4 Rf2 Qa7 Re2 Nh3 g1Q Qa8 Qg2 Ng1 Rf2 Rh4 Qc8 h3 Re2 Rh2 Qh1 Rhf2 Qg2 Rh5 Qa3 Bb1 Ra2 Bc2 Qb2 Reh4 Bf4 Re2 Bd2 Ree4 Bg5 Rhf4+
K7/2p1NpP1/1N1r2q1/k1N1Pb2/1r5b/B5Qr/nb1BpRRB/1R4Rq b - - 0 1 legal: proof: b4 g5 f4 e5 fxe5 b5 h4 gxh4 a4 Nf6 axb5 Bc5 c4 Bd6 b6 Bf8 b7 Ng8 e4 d5 e6 Ne7 b5 Qd7 c5 Qd8 e5 Ng8 Bd3 Nd7 Be4 Nb6 cxb6 dxe4 Kf2 h5 Ke3 a5 b8B h3 g4 a4 d4 h4 g5 h2 b7 h3 d5 a3 Kd4 e3 g6 a2 d6 e2 Kc5 Ra4 Kc6 Rh6 d7+ Ke7 b6 Rh8 Bd2 Rh5 Nf3 Bh6 Qg1 Rah4 Ng5 Bf8 Ne4 Bh6 Na3 Rg4 Rf1 a1B Nc4 Be3 Ba7 Bed4 b8N Rh8 b7 Bf2 Nc5 Nf6 Qg3 Ne4 Rhg1 h1Q Nb6 Qg8 d8B+ Ke8 e7 h2 Rg2 Nc3 g7 Rb4 Rg1 Na2 Nb3 Be3 N6d7 Bg5 Bde3 Rb5 Re1 Rh5 Bd2 Qf1 Bg1 h1R Rc1 R1h3 Bh2 Qh1 Rg1 Bb2 Nd4 Nc3 Na6 Ba3 b8R Na2 Nf5 Qh7 Rb6 Rd5 Rbb1 Bb2 Nb6 Be6 Kb7 Qg6 Ka8 R5h4 Nc4 Kd7 e8R Kc6 Be7 Kb5 Ba3 Re4 Nb6 Rb4 Nc5 Ka5 Re7 Bc8 Re6 Rd6 Ne7 Bh4 Rf6 Bg4 Rf4 Bf5 Rf2
1B2B3/1Pp4b/2Pn2qb/5b2/Bp1N1kq1/2N4r/Rp2RKR1/nQnNN3 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 f5 exf5 e5 d4 b5 dxe5 Ra6 Ra2 Rb6 Ra3 axb4 Ra1 b3 Kd2 b4 Ke1 Rb5 axb5 Ke7 Nh3 Kf7 Ng1 Ke8 c4 Kf7 g4 d5 f4 h5 b6 d4 e6+ Kf6 e7 b2 e8B h3 g5+ Ke7 b7 Kd6 f6 d3 c5+ Ke6 f7 Kf5 g6 d2+ Kf2 h4 c6 h2 g7 h3 Bb5 Bd7 Ba4 Ke4 f5 Nf6 g8R Na6 Nf3 Bh6 f8N Nc5 Ne1 Nb3 Ra2 Kf4 Nc3 Na1 Nh7 Bc8 Rg5 Qd3 Rg2 Bd7 Rhg1 h1B Ng5 h2 Nge4 Be6 Rf1 Bg8 Qc2 Bh7 Nd1 Qd6 Qb1 Qe6 Ne3 d1Q Nc3 Qg4 Bd2 Qf7 Rfg1 Qfg6 Ned1+ Ke5 Be3 Ne4+ Kf1 Nd6 Ba7 Kf4 Re2 Be4 f6 h1N f7 Nf2 f8N Bc2 Rg2 Nd3 Bb8 Nc1 Kf2 Bf5 Nd7 Rg8 Ne5 Rg7 N5f3 Re7 Rc2 Re3 Nd4 Rh3 Re2
6N1/pp1n1q1q/2p1N1Q1/2bNR2R/2P1BRKP/k1nB4/1n2B1b1/2Nb2r1 b - - 0 1 legal: proof: f4 g5 fxg5 e5 g4 h6 d4 Be7 dxe5 Kf8 g6 Nf6 g7+ Ke8 g5 Bf8 g6 Ng8 a4 c6 b4 d6 a5 Be6 a6 Nxa6 b5 Rc8 b6 Rc7 bxc7 Ba2 Bg5 hxg5 Kf2 Kd7 Kf3 f5 c8R f4 e4 d5 e6+ Kd6 e5+ Kc5 e7 Kb4 e8B d4 e6 d3 e7 d2 Bd3 Nf6 g8B Nc5 g7 Qc7 Beg6 Na4 e8N Nd7 Bge4 Nb2 Nc3 Ka3 Nd5 Bc5 Qb1 d1B+ Ne2 Rh5 Kg4 f3 h4 f2 Re1 f1Q c4 Qf7 Bgh7 Rh6 g8N Rg6 Qc2 Rg7 Rc1 Bb1 Bf3 Rg6 Rf1 Rg7 Bhe4 Rg6 Rf2 Qh7 Ng7 Qf4+ Kh3 Qf7 Ne6 Rg7 Bh5 g4+ Kg3 Rg6 Rf4 Rg5 Re8 Rg6 Rf5 Rg5 Kf4 g3 Bg4 g2 Bgf3 Rh5 Kg4 g1N Rf8 Rh6 Rh5 Rf6 Bh1 Rf1 Bhf3 Qe8 Rf4 Qef7 N2d4 Ne2 Nb3 Nc3 Bfe2 Ba2 Rb1 Re1 Nc1 Rh1 B2f3 Rg1+ Qg2 Bab3 Bfe2 Bbc2 Re5 Nba4 Rb5 Nb2 Kh3 Bb1 Qg6 Bbc2 Bf1 Bf3 Bfe2 Bg2+ Kg4 Bd1 Rh5 Be7 Nb6 Bb4 Rbe5 Bc5 Nd5
4RQ1k/2p2p1n/qn3PBq/2prn1N1/NR6/2N3B1/2KRPR2/rB2bn2 b - - 0 1 legal: proof: b4 g5 h4 gxh4 d4 e5 dxe5 b6 a4 Ba6 c4 Be7 b5 Nh6 c5 bxc5 b6 Bb5 axb5 Ng8 Nh3 Bd6 Ng1 Bf8 Kd2 h5 g4 d5 f4 a5 f5 d4 e6 h3 e7 h4 b7 h2 b6 h3 g5 d3 g6 a4 g7 a3 Nf3 a2 Ne5 Rh5 Nc3 Nf6 g8B Nh7 f6 Nc6 Nf3 Rd5 b8N Bh6+ Ng5 Ne5 b7 Ra5 Rg1 h1N Rg2 h2 Nd7 Ng3 b8R h1Q Rf2 Qh3 Rab1 a1Q R1b4 Qh5 Bg2 Nf1+ Ke1 Ra8 Be4 Qa6 Nb6 Qh3 Qd2 Qh1 Qf4 d2+ Kd1 Qh4 Kc2 d1N Rb7 Nb2 Nba4 Nbc4 Bg6 Nb6 Qh2 Ra7 Bf4 Qa8 Bg3 Qh5 Ne6 Bd2 Ng5 Qh6 Rd4 Be1 Rd2 Nbc4 Rb4 Nb6 Kc1 Kd7 Bb1 Qaf8 Kc2 Ra8 Nf3 Ke6 e8R+ Kf5 Ng5+ Kg6 Qg2 Rd7 Qc6 Rd5 Qd6 Qb7 Nb2 Ra1 Nba4 Qa6 Nf3 Ng5 Rb8 Qh5 Bh7+ Kh6 Bg6 Qh1 Bh5 Kh7 Bg6+ Kh8 Re8 Nh7 Ng5 Qh6 Qxf8+
b1b3B1/r1BPNN1K/nR2NRpQ/8/p3P2r/1pr5/B2nk2b/1R3N1r b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 gxh5 Rh7 Kf2 Rh6 Ke1 Rh8 b4 a5 Ba3 a4 Bb2 Qd6 Bc1 Qc5 a3 Qa5 bxa5 Na6 Bg2 Nb4 Bf1 Na2 Kf2 Bxa3 Ke1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kc4 d4 c5 d6 b5 d7 f3 Kf5 f6 Kg6 f5 d8N f2 e4+ Kb4 h6 c4 d5 c3 a6 f4 d6 c2 h5 f3 a7 Be6 d7 Bd6 h7 Bb8 h6 Nc3 Ne2 Kc4 Nc6 b4 Nd2+ Kd3 Ne7 Bd5 Rb1 Nf6 Nd4+ Ke3 Bb5 f1R Ne6 f2 Bc4 Ne8 Qh5 Nc7 Ba2 b3 Qh2 Re1 Nf1+ Ke2 Bf4 Na6 Bc7 c1R Qd6 Bb7 Rh4 Red1 Rf4 Bc8 Rf6 Rd3 Nh2 Rh1 Nf1 Rdh3 Qf4 Bb7 Qc1 Rc8 h8R Rh4 Kh7 g6 Bb6 Bh2 Bc7 Nd1 Rhf8 Ne3 Re8 Nc4 Ref8 Rab8 a8B Nd2 Rd8 Bd5 Bc6 Ra8 Rg8 Bc4 Bd5 Ra7 Rd8 Bb5 Re8 Bc6 Rd8 Bb7 Rh8 Rca8 Rb8 Bc6 Rb6 Rc8 Nc5 Ba8 Bg8 Rf4 Ne6 Rh4 Bd6 Rc3 Bc7 Rb7 Kg7 Ra7 h7 Nf3 Qh6 Nd2 Ne3 f1B h8N Bg2 Nf7 Bh3 Nc5 Be6 Kh7 Bed5 Nf1 Bdb7 Ne6 Bc8 Ra1 Rc6 Rd1 Rc3 Rb1
2N4q/3rq2q/1B1Np1B1/1P1P2Q1/K1bBp1N1/5brk/R1p1N3/RR1rb3 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 b5 c4 bxc4 f4 g5 a3 g4 f6 Nh6 f5 Nf7 a4 Ng5 hxg5 Nc6 Qf3 Nd4 Qd1 Nb5 axb5 Bb7 Rh4 Ba6 Rh1 Bc8 d4 Kd7 Kd2 a5 Kc2 h5 b4 c5 g6 g3 b6 a4 b5 a3 f7 h4 b7 a2 b8B g2 f6 Ke6 g7 Kf5 g8N h3 Kc3 h2 Ba7 Rh3+ Be3 Rg3 Bb6 Be6 Be2 Ra7 Na3 Rd7 Bh5 Bh6 Kc2 c3 f8N c4 Ne2 g1Q Bg6+ Kg4 f7 Kh3 Nh7 Qe1 Rf1 h1B f8R Bf3 Nhf6 Bd5 Rg1 e6 Qc1 Qe7 Ng4 Qf2 Re8 Qh2 Ra8 Bg7 Rb1 a1Q Bf2 Be5 Qg5 Bf4 Ra4 Bd2 Ra8 Be1 Rh1 Qg7 Ne7 Qh7 Nc8 Qe7 Kc1 c2 Be3 Qc3 Rg1 Qa5 Kb2 c1R Rh1 Rd1 Kc2 c3 Nc4 Qa6 Kb3 Qa1 Ra2 c2 Ka4 Qb2 N4d6 Bc4 d5 Qh8 Rf1 Kg2 Bg1 Q2h7 Bgd4 Kh3 Rba1 Bh1 Rf3 Bg2 Rb3 Bf3 Rbb1
1r4NK/1nqr4/kpP1nB1B/1qQ2p1P/N4qr1/6pR/B2Nn1R1/1R3N2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 gxh5 a5 e3 axb4 Bg2 d3 Bf1 d2+ Ke2 d5 Kf3 e5 Be2 d4 Kg2 e4 Ba6 Bf5 Bf1 d3 f3 Bc5 Kf2 Bb6 Kg2 Bd4 exd4 e3 Qe2 Ra6 Qd1 Be4 fxe4 Ra8 h6 Kd7 Kg3 Kc7 Kf4 Kb6 Kf5 g5 a4 e2 c4 e1Q h4 b3 h7 g4 e5 f6 Kg6 f5 Kg7 g3 e6 b2 c5+ Ka6 d5 Ne7 a5 Nd7 d6 Nf8 c6 Neg6 d7 Rb8 h5 Nf4 e7 Qb6 e8N Qe6 d8R Nd7 Qc2 d1Q Rh3 Qc5 Nf3 Qcd6 Nf6 Qe3 Nh2 Kb5 a6 Nc5 a7 Qde2 a8N d2 Nb6 d1R Na4 b6 Qc3 Re8 h8B Ka6 Ng8 Qb5 Bc4 Nb7 Ba2 Re4 Nf1 Ne6+ Kh7 Qf2 Bh6 Rg4 Qc5 Qff4 Bf6 Qc7+ Kh8 Rd3 Rd4 Rd2 Re4 Rd7 Nbd2 b1N Re2 Nc3 Rg2 Ne2 Rb1
KBb3r1/1N4rr/P4Rr1/2BR1B1N/p2r1P2/1n1R2p1/4kNp1/2qNQ1q1 b - - 0 1 legal: proof: b4 b5 e4 f5 c4 fxe4 a4 d5 cxd5 h5 a5 e6 g3 Bc5 g4 hxg4 Qe2 Nc6 Qd1 Bb6 axb6 a5 Ra2 a4 Ra1 Na5 bxa5 Rh6 Qf3 Rh4 Qd1 Rh8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 Kc6 g5 d4+ e3 h4 g3 h5 e5 f3 e4 h6 g4 h7 b4 d6 b3 a6 g2 d7 g3 d5 b2 b7 Nh6 b8B Nf5 Nc3 b1R d6 Rb4 Bd3 Rd4 Ba3 e2 Bc5 Ke3 Nh3 e1R Nf2 Rg8 h8R Ra7 R1h5 Rh1 f4 Qf6 Rg5 Rh7 d8N Qh6 Qb1 Qh2 d7 Qg1 Qe1+ Kf3 Rb1 e3 Nb7 e2 d8N Ke3 Ncd1+ Kf3 Qa5 e1R Rb3 Re5 Bb1+ Ke2 Rd3 Red5 Ne6 Rd6+ Kb5 Rc6 Ng7 Rg6 Nh5 c6+ Kb6 Rhg7 Bcd6 c5 Rh6 c4 Kc6 c3 Bc2 Nh4 Rd5 Nf5 Bb1 c2 Qc3 Rg5 Rf6 c1Q Bc5 R5g6 Qb4 Nd6 Qc3 Nc4 Qb4 Na5+ Kb6 Qe3 Qe1+ Kf3 Nd6 Nb3 Rc3 Rh7 Bf5 Rag7 Rd3 Rhh8 Nb7 Rhh7 Qc3 Ke2 Ka7 Qd2 Ka8 Qc1 Qe1+
1R3B2/1n1q1Rp1/P1nqN1pR/1Nq1QrBk/2nP4/B4bnK/1N2p3/7B b - - 0 1 illegal: No possible last move, all moves rejected
2NkB1q1/3Npp2/b1RNb2B/K4pBr/2p1bP2/RP3R1r/1r4Q1/3nN3 b - - 0 1 legal: proof: e4 d5 exd5 b5 b4 a5 Bd3 axb4 Nc3 b3 Nge2 b4 Ng1 b2 Nb1 b3 Na3 b1B Bf1 b2 h4 g6 g4 Ra6 g5 Nd7 Qf3 Nc5 Qf5 Nb3 cxb3 gxf5 g6 Bh6 Ke2 Ra8 Ke1 Bg5 hxg5 Bb7 Nb5 Ba6 Na3 Bc8 d4 c5 Kd2 h5 Kc3 h4 d6 h3 d5 h2 g7 Qc7 d7+ Kd8 g6 Rh3+ Nf3 Ra6 Bb5 c4 Kb4 Qa7 Ne1 Nf6 g8N Qb7 g7 Qa8 Rf1 h1R Bh6 Nh5 Nf6 Rg1 g8Q+ Kc7 d8R Qb7 d6+ Kb6 d7 Kc7 Qg2 Rg3 f4 Rh1 Rf3 Rb6 Rh8 Rd6 d8B+ Kb8 Bb6 Qa8 Bf2 Kc7 Bc6 Rg5 Bh4 Ng3 Rf8 Rh5 B4g5 R1h3 Nb5+ Kb8 a4 Rd2 a5 Nf1 a6 Be4 Rd8 Ne3 Ka5 Nd1 Rd6 Bd5 Ra3 b1B Re6 Bb7 a7+ Kc8 Rd6 Qb8 a8N Bbe4 Re6 Ba6 Nb6+ Kd8 Bd7 Qd6 Be8 Rb2 Nc8 Qe5 Nd7 Qh8 Rb6 Be6 Rc6 Qg8 Nbd6
4N3/1KQ5/2Pp1pnR/B1pqnBb1/2PB2rR/N2b4/6Rp/1bN1N1qk b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 d4 c5 a4 e5 f4 exf4 d5 b5 axb5 Ra6 Rh2 Ne7 Rh1 Rc6 dxc6 Ng8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 g4+ Ke4 g5 h5 g6 h3 b6 h4 Kb5 f3 c4 h2 b7 f6 a6 h3 g7 f2 a7 Qc7 a8N Rh7 Bd2 Rh4 Nf3 Qg3 Kb6 Na6 b8B Qg4 Ba5 Rh7 Be5 Nb4 Bd4 Qg2 Nbd2+ Kf4 e4 Kg3 e5 Ne7 g8R+ Ng6 e6 Rh4 e7 Nd3 e8N Rg4 Ne1 Nde5 Nac7 Bh6 Nb3 Qg1 Bd3 f1B Nc1 Bg5 Bf5 Bd3 Nb5 d6 Qd2 Be6 Kb7 Bd5 Rg7 B5e4 Na3 Bb1 Qb2 Bec2 Qb6 Bd3 Nf3 Kg2 Qc7 Qe3 Rh7 Qe4 Rh6 Qd5 Re1 h1Q Re4 Qf1 Ra2+ Kh1 Rg2 h2 Ne1 Qg1 Rf4 Rg3 Rfh4 Rg4 Rb2 Nf3 Rc2 Nfe5 Rg2
1r3N2/1P2R3/KR2bq1N/2bBp1B1/pqp2kb1/qnp2N2/1N3QP1/1B3R2 b - - 0 1 legal: proof: f4 a5 c4 d5 d4 dxc4 a4 e5 e4 g5 h4 gxh4 f5 b5 axb5 Ra6 d5 Re6 fxe6 Nd7 d6 Ndf6 Nf3 Bh6 Ng1 Nd5 exd5 Bf8 Kd2 c5 Kc3 h5 b4 f5 b6 f4 b5 a4 b7 h3 b8R f3 d7+ Ke7 d6+ Kf6 b6 Kf5 e7 h4 e8B h2 Bg6+ Kg4 Nd2 h3 Qe2 Kg3 Qf2+ Kg4 Bb1 Qg5 d8N Qf6 d7 Nh6 Nf7 Nf5 d8N Kf4 Nh6 Be6 Bfd3 Nd4 Be4 Rg8 Bd5 Nb3 Rb7 Bd6 Re7 Bg4 b7 Rf8 Qf1 f2 Ngf3 Rg8 Qe2 f1B Qf2 Rh8 Rg1 h1Q Ra3 Be2 Rf1 h2 Ra2 Be6 Rb2 Na5 Rb6 Nb3 Nc6 Qg1 Nb8 h1Q Nd7 Rb8 Nf8 Qh5 Ne1+ Qf3+ Nd3+ Kg5 Ba3 Qh3 Bb4 B2g4 Ba5 Qh4 Nb2 Qgh1 Nf3+ Kf4 Rc6 Qg3 Bd8 Qh5 Rb6 Qe8 Qg1 Qb5 Qf2 Qb4+ Kc2 c3 Kd3 Qa3 Kc4 Qgh4 Kb5 c4 Ka6 Bc5 Rc7 Qe7 Rd7 Qd6 Bf6 Qg5 Re7 Qg7 Bh4 Qf6 Rh1 Bd4 Rc1 Qdb4 Rf1 Bc5 Bg5+
K4RrB/1B3N2/QN3P1N/1pN5/2bp3k/pPp2b2/pBbqnR2/3r3R b - - 0 1 illegal: Other
1r1R2K1/p2NN3/1p2RRB1/1PpB4/2b4P/1p1nR1r1/npQk1nrB/6N1 b - - 0 1 illegal: Other
1nB1Rqn1/1Nr1q3/BN2rnq1/P1r3BP/R1N4R/5R1n/1b3kbK/2Q4n b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 a4 Ke5 d4+ Ke4 h4 c5 h6 g5 d6 f5 h7 b5 d7 c4 h5 b3 d5 b4 e3 b2 a5 g4 d6 c3 Nf3 c2 Be2 b3 Rf1 g3 Bb5 Bb7 Qe1 Ra7 Be2 Qe7 d8N Bg7 Bd2 c1R d7 Rc5 Kh1 g2+ Kh2 g1N Ne5 f3 Nec6 f4 Ra3 f2 Qc1 f3 Nb4 Nh3 Ra4 Bd4 Na3 b1Q Bc4 b2 Nd5 Bc6 Bb5 Rc7 Ba6 Qd3 Nc4 b1N Ndb6 Bb2 Nb7 Nc3 d8R Nd5 Re8 Ndf6 Rh1 f1Q Rf8 f2 Re8 Kf3 e4 Ba3 e5 Qg6 e6 Bb2 Bg5 Ke2 Rf8 Bg2 Re8 Qe1 Rf8 Qb4 Rf7 Qf8 e7 Kf3 e8B Qe1 Bd7 Qee7 Bc8 Ke2 Kg3 f1N+ Kh4 Ng3 Rh2 Nd5 Rf3 Nh1 Kg4 R7c6 Kh4 Re6 Kg4 Ndf6+ Kh4 N1f2 Kg3 Rc7 Rh1 Rc5 Kh2 Rc7 Rd1 Nh1 Rd4 Rc5 Rc3 Kf2 Rh4 Nh6 Rd3 Rg8 h8R Rg7 Rd8 Nhg8 Re8 Qd8 Rh7 Rgc7 Rd7 Qde7 Rd3 Qd7 Rda3 Qde7 Rf3+
Nbq3r1/BB1RPKR1/3R1n2/r4NP1/Qk3b1R/1n3b2/1b1r2q1/bN4Bq b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 h5 d4+ Kb4 g4 c5 g6 a5 b6 c3 g7 a4 b7 a3 d5 f3 b3 c2 g5 h4 d6 a2 d7 h3 Ke6 c4 e5 f4 Be3 c1B Qc2 h2 Kf7 c3 e6 f2 Bg2 f1Q Nf3 Nf6 g8R Nc6 b8B Bd6 e7 Na5 Nh4 f3 Rg7 f2 Bba7 Bb7 Nf5 Qc8 d8R Bb8 Rd7 Bb2 Qd1 c2 Rd6 Ba6 Bb7 Qg2 Beb6 f1R Bg1 c1B Qc2 Kb5 b4 Bf4 Qa4+ Kc4 Rd7 Rd1 Rd6 Rg8 Rd7 Rd6 b5+ Kd3 b6 Nb3 Nd2 Kc3 Rd1 a1B Nb1+ Kc2 Rd4 Be2 Rd1 Bf3 Rd3 Re6 R3d6 Re1 Bc6 Rd1 b7 Rd2 Bd5 Bc7 b8N Kd3 Na6 Bb8 Nc7 Kc2 Bab6 Ra5 Na8 Kd3 Bb7+ Kc2 Bgd4 Kd3 Ba7 Kc2 Re1 h1Q Re4 Kd3 Bg1+ Kc2 Na3+ Kc3 Rb4 Be3 Rh4 Bf4 Qc6+ Kb4 Nb1 Ra4 Qc2 Ra3 Qc6 Ra5 Qa4+
1K3n1r/2NB1b1q/4n3/3qR1B1/3rr3/kPBRnR2/b1PN2Qb/1qR1q2N b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kf3 e5 Ke4 Ke7 Kd5 a5 f4 d3 g4 a4 b6 d2 g5 h3 b7 h4 g6 a3 g7 h2 Bc4 e4 Bb5 e3 Bf1 a2 Be2 h3 Bf1 e2 Nf3 e1Q Ng5 Nf6+ Kc5 d5 g8R d4 Qg4 d1N Nd2 d3 Nge4 Na6+ Kc6 Be6 b8B Nc5 Rg5 Qd5+ Kc7 Ne3 Qg2 Ra4 Ng3 Re4 Be2 Nfd7 Bg4 Bf7 f6+ Ke8 f5 Ne6+ Kc8 Bd6 Rb1 Bf4 Be5 a1Q Bc3 Ndf8 Rg1 Qaa2 Nh1 Bd6 Ra1 Qb1 Ra6 Be5 Rd6 Bf4 Kb8 Bg3 Nb3 d2 Rf1 d1R Nd2 Bg8 f7+ Ke7 Nc4 Rdd4 Nd2 Nh7 f8R Bf7 Rf3 Bf4 Rfg8 Nhf8 f6+ Ke8 Ng3 h1Q Re5 h2 Bf5 Qhg1 Rg4 h1B Rg6 Qh2 Rg5 Bg8 f7+ Ke7 Rg4 Qh7 Rd8 Ng6 f8N Bf7 Rh4 Qc6 Rh3 Qd5 Re8+ Kd6 Re7 Nd8 Ne6 Nf8 Nc7 Kc5 Bd7 Nde6 Nf5 Bh2 Ng3 Bh5 Ref7 Bg6 Rf1 Bh5 R7f3 Bf7 Nc4 Nf5 Bg5 Ne3 Rg1 Nf1 Nd2 Ne3 Qe2 Bg2 Nh1 Bf1 Qf2 Bc4 Qg2 Ba2 b3 Qa1 Bb2 Kb4 Bc3+ Ka3 Rhg3 Qab1 Rh3 Qg3 Rc1 Qe1 Rhg3 Ng4 Rd3 Ne3 Rf3
2K3Rq/1r1B3q/2n1q1R1/1n3b1b/NbNBPr1B/1P5r/Nn1k4/R2b2QN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 d4 a5 g5 c5 g6 h5 d6 h3 b6 a4 d7 f3 Ke6 h4 b7 f2 g7 h2 d5 f4 d6 f3 Bf4 a3 Ra2 h3 Bh6 Nc6 b8R Nf6 g8N Qe7+ Kf5 Qe6+ Kg6 Ne4+ Nf6 Ra7 d8B Rb7 d7 Nc3 Be3 Nb5 Ra1 a2 b3+ Kb4 Na3 Kc3 Kg5 c4 Nh5 Bb4 Ng3 Rh4 Qb1 Rf4 Bd4+ Kd2 e4 c3 N1e2 c2 Nc3 c1N Na4 Nd3 Rg1 h1Q Be7 h2 d8N Nb2 Bh3 f1B Rg2+ Be2 Qg1 f2 Nc4+ Kc2 Bef6 f1B Kg6 Qe7 Bd7 Qe6 Kg7 Kd3 Bh4 Bh5 Ra8 Bfe2 Ra6 Ne7 Nc6 Beg4 Rb6 Bf5 Kf8 Bfg4+ Nf5 Bd1 Rg6 Ke2 Ke8 Kd3 Kd8 Ke2 Rb1 a1Q Rg8 Kd3 Ng3 Kc2 Ne3+ Kd2 Ra6 Qf3 Nh1 Qfh3 Rc1 Qhf5 Rb1 Qh7 Nc4+ Kc2 Ng3 h1R Rb6 Rh3 Nh1 Qa2 Ra1 Qa3 Nc3 Qa8 Na4 Kd3 N6e5+ Kc2 Nd3 Qb8 Nc1 Qbe5 Na2 Qeh8 Na3+ Kd2 Ra6 Qee5 Rg6 Qef6 Bc6 Bf5 Bd7 Nc6+ Kc8 Qe6 Nc4+
2b1BBNR/1r3B2/b1Q4b/2r2q2/2P1Bkq1/n6R/2Pn2qN/KbrnN1R1 b - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 f5 b5 axb5 c4 d3 e6 dxc4 exf5 Rh3 f4 Rh2 Qc7 Rh1 Qd8 Kd2 Ke7 Kc3 Ke6 g4 Ke5 e4 h5 b4 a5 Kb2 d5 g5 f5 b6 d4 b7 f3 b5 h3 b6 f2 g6 d3 g7 a4 Na3 h4 Bh6 f4 Qe2 d2 Nb1 d1N+ Ka2 a3 Qd3 h2 Bh3 f1Q Bf5 h3 Nc3 f3 Na4 f2 Bd7 Rh7 Be8 Qg5 Ne2 Na6 b8R Qfg2 b7 f1Q Qe3 Q5g4 Qd3 Qff5 Bg6 Nf6 g8B Nc7 Ng3 Ra5 Nf1 Rc5 Nb2 Nb5 Qf3 Bg7 Rg1 h1B B8f7 h2 Rb1 Bf8 Ka1 a2 Bg7 Na3 Nd3+ Kd6 Ne1 Ke5 Bh6 Rg7 Rb3 Rh7 Bd2 Bh6 Bb4 Rg7 Ra8 Rh7 b8N Rg7 Qh3 Kf4 e5 Ne4 e6 Nd2 e7 Ba6 e8B Bc8 Be6 Rb7 Bg8 Q2e2 Rbg3 Bc6 Nd7 h1B Nf6 Ba4 Bg8f7 Bb3 Nh2 Be4 Ng8 Qg2 Re3 Bc6 Qh4 Bb5 Qf6 Ba6 Qc6 Nf2 Kb2 a1R Rh3 Rc1 Rb8 Ba2 Bh7 Qfh5 Be4 Bb1 Ka1 Qhf5 Ra8 Nd1 Rb8 Ra5 Bf8 Rc5 Rh4 Re7 Rb3 Rb7 Rbh3 Bg5 Rh7 Bh6 Rh8
kBR5/2B1KNr1/1Q2Nn1R/2N5/2P5/1bq1n1rN/q1PbB2r/n1Rb1bq1 b - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 f5 b5 axb5 c4 d3 e6 dxc4 exf5 Rh3 f4 Rh2 Qc7 Rh1 Qd8 Kd2 d5 Kc3 Kd7 Kd4 Kc7 Ke5 Kb7 b4 f5 e4 h5 g4 a5 b6 d4 b5 h3 g5 h2 g6 a4 g7 a3 Qf3 a2 Qc3 h4 Qe3 d3 Bg2 f3 Qc5 d2 Qf2 d1B Nc3 h3 Ba3 f4 Qf1 f2 Bb4 f3 Be7 Nh6 Kf6 Qd4+ e5 Ra3 g8N Nf5 Bd8 Bd7 Bc7 Ne3 Nh6 Bb4 Na4 Rh7 Nf7 Rg7 Nc5+ Ka8 Ke7 Bd2 e6 Qc3 Rc1 a1N Qe1 f1Q Qf2 Qfd3 Bf1 Qb3 Be2 Qa2 Na4 Qc3 Nc5 Ng4 Qd4 f2 Qe3 f1B b7+ Ka7 Qh6 Ne3 Qf6 Be8 Qf2 Nd7 b8B+ Ka8 b6 Rb3 Qf6 Ne5 Bd8 N3g4 Kf8 Bb5 e7 Ba4 e8N Qe3 Ke7 Nd7+ Be5 Qd4 Qd6 Rg3 Qc7 Ne3 b7+ Ka7 Qc6 Qc3 b8R Nf6 Rc8 Bb3 Qb5 R7g6 Bb8+ Ka8 Qb6 Rg7 Nf3 Qa6 Ng5 Qa2 Rg1 h1Q Bdc7 h2 Rg2 Rg6 Ng7 Qg1 N7e6 h1R Rh2 Rg7 Rh6 Rh2 Nh3
1R3bBn/7N/r2r3n/N6N/1PnP1k2/2qRRr1n/1B3qQK/Bq1bN2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 g4 Kf6 Kg2 Kg5 e4 f5 b4 h5 d4 c5 d6 a5 e5 c4 d7 a4 b6 a3 b7 c3 e6 h3+ Kh2 c2 e7 a2 e8R h4 Qd3 Qf6 d8N Rh6 Qe4 Nd7 b8B Ne5 Na3 Nf7 Qe2 Bg7 Rf8 Ra6 Nb5 Nh8 Nb7 Be6 Qd2 Bb3 N5d6 Rg6 Na5 Nh6 Rb1 a1Q Qg2 Qa3 Re8 Bf8 Bc4 Qf7 Bd2 c1Q Bc3 f3 Ba1 f2 Bd5 Bc2 Rb3 f1R Rd3 f4 Nf5 f3 Ba2 f2 Ng7 Qf6 Rc8 Ba4 Nh5 Qb1 Bc7 Qab3 Rb8 Qc3 Bc4 Bd1 Be6 Qf5 Be5 Rf6 Nf3+ Kg6 Bb3 Rfd6 Rg1 Qf7 Kh1 h2 g5 Kf5 Bf4 Ke4 Bc1 Qf4 Bc4 Qe3 Ng3+ Kf4 Bcb2 Qed2 Ne1 Qe2 Qa8 Qe3 Kg2 h1N Kh2 Qf3 Nf5 Qe2 Rgg3 Qed2 Rge3 h3 Ng7 Rg1 Qd5 Rg3 Qg8 Rf3 Nh5+ Kf5 Bf7 f1N+ Kg1 Nf2 Bd5 h2+ Kg2 Be7 g6 h1B+ Kg1 Qdc2 g7 Nd2 Kh2 Nh3 Bc4 Kg4 Ba2 Bf8 Qd5 Rf4 Qg2+ Kf5 g8N Rf3 Bd5 Nc4 Ngf6 Qe2 Bg8 Qf2 Ng3+ Kg5 Nh7+ Kf4 Nh5+
N1Rb1K2/6nB/Qr3b1P/N2R4/1Nb2R2/1rq3Rn/P5Bn/1kqr1qBr b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 f5 d4 b5 d6 g5 d5 c5 d7 b3 Ke6 g4 Kf7 f3 d6 b2 h6 f4 h5 f2 h7 f3 Qe1 b4 Rh3 b3 Bh6 g3 Qd2 g2 Be3 Qa5 d8N Ne7 d7 Bg7 Rh2 Nd5 Qc1+ Qc3 Rh3 Bf6 Bd4 Nf4 Ne6 Ba6 d8R Nd7 Rg3 Rb8 Nc7 Nf8 Nh3 g1B Na8 N8e6 Rd5 Ng7 Bg2 f1Q e4 Kd3 e5 c4 e6 Rb6 Nd2 b1R e7 b2 e8B Bh2 Qe1 Kc2 Nb3 f2 Qe6 Rd1 Na5 b1R Bd7 Rhb8 h8R R6b3 h6 R8b6 Kf8 Kc1 Ng1 Nh3 Nf3 Bb5 Ne1 Ba6 Re3 Bc7 Rg3 Bcd8 Nd3+ Kc2 Qe1 Qe2 Bc8 Rdc1 Bf3 f1N Be4 Qb2 Bcf5 c3 Bg6 Nh2 Rh7 Nf5 Rc7 Ng7 Bg2 Qf2 Qe7 Rh1 Rc8 Rbe1 Qb7 Bc4 Rd1 Qf1 Bg1 Qa1 Rd2+ Kb1 Bh7 c2 Rf2 c1Q Rf4 Qac3 Qa6 Rd1 Nb4+
R1bB1nq1/2bP2B1/r1q1B2Q/N2b1K2/1q2n1nR/6Pk/RbB1r3/2N2Nr1 b - - 0 1 illegal: No possible last move, all moves rejected
1N1q1rq1/BP3qB1/bP2b1N1/R3nB2/2n2qn1/3QrBbK/N2r2R1/k2R4 b - - 0 1 illegal: No possible last move, all moves rejected
1qr1Rr1R/2B3r1/1n1n2B1/r1QRr3/1Kb2B2/N1PN1P1n/N2r1b1b/R6k b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 b4 Ke5 g5 Kf4 g6 h5 c3 e5 f6 d5 f3 Kg3 g7 a5 b6 e4 f7 h3 b5 h2 b7 d3 b6 e3+ Ke1 e2 Kd2 e1B+ Ke3 d4+ Ke4 h4 Bb2 d2 Kd3 h3 Kc4 a4 Qb3 d1R Qa3 d3 Kb5 d2 Qb3 a3 Qa2 Nd7 b8R Nh6 g8N Nf5 b7 Bd6 f8B Bf2 Ne7 Re1 Kc4 d1R Bg2 Re5 Bc1 Rd2 Ng6 Nb6+ Kb3 Qc7 Bf1 Be6+ Bc4 Kg2 Re8 Rh7 b8R Rg7 Rbd8 Rc8 Ne2 Qb8 Qb2 a2 Na3 Bc7 Kb4 Nd6 Bd3 Bc4 Rd1 h1R Ngf4+ Kh2 Bg6 Rg1 Nd3 Kh1 Qc2 h2 Qa4 Rg8 Qa5 Rh8 Bg7 Rg8 Qc5 Rf8 Rb1 a1R Bh6 Rc2 Bcf4 Rd2 Nec1 Raa2 Nb5 Ra5 Ra1 Kg2 Na3 h1N Bfg5 Kh2 Na2 Rg4 Bf4+ Kg2 Bh5 Rg7 Bh2 Bh4 Bg5 Nf2 Bg6 Nh3 Bgf4 Bf2 Bhg3 Rf6 Rh8 Rff5 Rde8 Rf8 Ne1+ Kh1 Bh2 Rc2 Rd5 Rd2 Nd3+ Re1 Qb5 Nb7 Bg5 Bf4 Bd8 Nd6 Qc5 B4g3 Bc7 Be5 Bg3 Bf4 Bh4 Be5 Bg5 Bh2 Nb1 Re4 Bf4 Re5 Na3+
R3N2r/b2n2rN/3KR3/BQnRN1kb/1r1qPr2/2qN1Br1/5PrB/7b b - - 0 1 illegal: No proof kernel
N4b2/BP3nqn/1R2Q1P1/k1rN4/1b3rRK/3nb3/1r1N3n/1BRBBb1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 a5 g4 c5 e4 Kc7 d4 Kb6 d6 h5 e5 f5 g5 h3 g6 a4 e6 h4 e7 h2 e8B f3 d5 h3 Kg3 f4+ Kf2 a3 d7 c4 d6 a2 Bg2 c3 Qd3 c2 Ne2 Ra5 Qd5 Nh6 Bd2 c1B Be1 Qe7 d8R Nd7 Qe6 Nf6 Nd2 Ba6 Rb1 a1B Nc3 Nf7 Rb2 Nh7 d7+ Nd6 Ra8 Qg7 d8N Ra2 Bc6 Nf7 Rg1 Ra5 Rc8 Ra2 Rb1 Rb2 Bf1 Rg8 Bd3 Rh8 Rg4 h1N+ Kg1 f2+ Kh2 f1R Bf3+ Nd6 Bfe2 f3 Bd1 Nf2 Kg3 h2 Kh4 h1N B3c2 Nd3 Nd5+ Ka7 Rc5 f2 Rc6 Nf7 b6+ Kb8 b7 Ka7 b5 Bb4 Nc4 Be3 Rc1 Rf8 Bb1 Rg1 Qd6 f1N Ne6 Nh2 Rb6 Rf1 Nec7 Rf4 Nd2 Rc8 Na8 Rcc2 Rc6 Rc5 b8B+ Kb7 b6 Bc4 Qe5 Ka6 b7+ Ka5 Ra6+ Kb5 Rc6 Ndf2 Qd6 Qg8 Qe6 Rc2 Qe7 Bg7 Nc3+ Ka5 Nce4 Rb2 Rb6 Bf8 Nc3 Bf1 Qe6 Nd3 Ba7 Qg7 Nd5
n1rn1N1Q/P1qR1P2/2k2rB1/nNrRB3/1KB5/3N2bb/4r3/n1bBn2R b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kd7 Kd2 c5 g4 b5 a4 e5 f4 h5 a5 b3 Kc3 e3 a6 e2 a7 e1R d6 c4 d5 b2 f5 e4 f6 b4+ Kd4 b3 Kc3 h4 f7 e3 g6 h3 g7 h2 g5 e2 g6 Qc7 Nd2 b1N+ Kb4 c3 Ra5 b2 Nb3 c2 Bf4 c1B Nh3 Nc3 Qd4 b1N Nf2 Rh6 Be5 Nb5 Nd3 Ne7 g8B N1a3 g7 Rf6 Bh7 Nec6+ Ka4 Bh6 g8B Nc2 Bg6 Bc1 B8h7 Nd8 Qb2 Nbc6 Nd4 Bg7 Bh5 Na1 B7g6 Bgh6 Qc3 Bhf4 Qb2 Na3 Nb5 Bg3 Qc3 Nc4 Bf3 Ne7 Kb4 Nb6 Qd4 Rb8 Qh4 Na8 Qh8 Rd1 Bfh5 e1N Bf3 Rd2 Bd1 Rc2 Bfe2 Rc5 Bf1 Nf5 Bfe2 Nd4 Bf1 Ndb3 Bfe2 Ba6 Bf1 Kc8 d7+ Kb7 d6 Kc6 Bfe2 Bc8 Bf1 Nb7 d8R Bh3 d7 Rc8 Nf4 Rd6 Bc4 Rd2 Nd3 Re2 Ra2 N3a5 Rd2 N1b3 Rg8 Na1 d8N+ Kb6 Ne6 Nd8 Nf8 Kc6 Rg1 h1R Rf1 Rhh2 Rh1 Rhf2 Rg7 Bg4 Rgh7 Rf1 R7h4 Be6 Rd4 Rf6 Rd7 Bg4 Nf2 Bf5 R2d5 Bh3 Nd3
1br1N3/RBr1bKBk/2Nrn1N1/1b3R2/2r1q1rR/6R1/PbP1B3/2Q3nq b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Kd2 Kf7 Ke3 g5 Ke4 Kg7 Kd5 b5 h4 e5 f4 e4 f6+ Kh7 h5 g3 h6 b3 f5 g2 c6 g4 c7 b4 f7 e3 f6 g3 Qh5 e2 Ba3 e1B Bb2 Qe7 Bd4 b2 Qd1 b3 Nh3 g1B Bb6 g2 Qd4 Ra7 Nf4 Bh2 Nd3 g1R Na3 b1Q Nf4 b2 Ba6 Nc6 Qe3 Ne5 Ng6 Bc3 Qc1 Nf3 Nb5 Rg4 Nd6 Ng1 Be2 Ba6 c8B Rc7 Bb7 Bb5 Ne8 Qe3 Ne5 Ne7+ Kd6 Qe4 Be3 Rc4 Bg5 Bf4 Rh4 Nc6+ Kc7 d5 Kd7 d4 Ke6 Be7 f8R d3 Kf7 Nd4 Nc6 d2 Rg8 d1R Rg6 Rg8 Rg7+ Kh8 h7 Bb8 Bf4 Ne6 Bh6 Rg2 Rg3 Bce5 Ra3 Rd6 Ra7 R2g3 Qd2 Qf1 Qe1 b1R Qc1 Rbb3 Rb1 Rbc3 Rb3 R3g4 Rba3 Rh3 Rg3 Bb2 Rf3 R8g6 Nc7 Qe5 Ke8 Rcd4 f7 Qe4 f8R+ Rg8 Rfa3 Nf3 Rb3 Rd7 Nb4 R4d6 Nc6 Qh1 Rba3 Ne1 Rb3 Rc3 Rba3 Rc4 Rg3 Rd2 Bf4 Kg7 h8N Nf3 Bh6+ Kh7 Ng6 Ng1 Nh8 R8g6 Rf5 R2d6 Kf7 Rg8 Ng6 Rc8 Ne8 Rdc7 Bg7+
3N2qr/3qB2R/r1kb2RP/Rbr1r1N1/r1b1n3/1b3Q1B/n5P1/1N2RBK1 b - - 0 1 illegal: No proof kernel
1nR2N2/B1n1B1qn/r3r1QP/1BRR1rP1/3rkqn1/1n1R2b1/3N2K1/1b3N2 b - - 0 1 illegal: No proof kernel
BNbR1nqb/3Q1N1b/2P3rB/5K1P/2BNrNn1/1rk3q1/R4b1b/1r5R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 g5 h4 a5 c4 d5+ Kf3 Ke5 b4 f5 e4 a4 h6 a3 h5 g4+ Ke2 f3+ Kd3 g3 c5 f2 b6 a2 b5 g2 b7 f4 h7 f3 b6 Ra6 Bh6 Bd6 Qc1 Nf6 Qe3 Ng4 Nc3 Qg8 Nge2 g1B Qc1 Nd7 b8N Nf8 Rb1 a1B Bg2 f1B b7 f2 Kc2 d3+ Kd2 d4 Nd5 Rb6 Qc4 Rb3 Qb5 Bc7 Bf3 Bb6 Rc1 Bh2 Ndf4 Bh3 Qa4 f1Q Qd7 Qg1 Rc2 Qg3 Ra2 Ba7 Kd1 d2 Kc2 Bc3 Kd3 d1R+ Rd2 Re1 Ra2 Ne3 Bg2 Bf5 Bf3 Q8g7 Bg2 Rg8 h8N Bh7 Nf7+ Kf6 Bf1 Q7g4 Bg2 Rg6 Bf3 Qe6 e5+ Kf5 Bd5 Bb6 Bc4 Ng4+ Kc2 Ba1 Kd2 Ke4 Kc2 Qd5 e6 Qg5 e7 d3+ Kd2 Bf6 e8B Bh8 Nd4 Qd5 Qc7 Ba7 Bc6 Re3 Qd7 Re2+ Kc1 d2+ Kc2 Re1 Na6 d1R b8R Bb6 Ba8 Rdb1 c6 Qg5 Nde6 Bf2 Nd4 Bb7 Rd8 Bc8 Nb8 Qd5 Ne5 Qg8 Nf7 Ke3 Be2 Rb7 Kc3 R7b3+ Kc4 Ke4 Bd3+ Ke3 Kd5 Re2 Bc4 Ree1 Ra7 Kd2 Ra1 Kc3 Ra2 Red1 Ke4 Re1+ Kf5 Re2 Ra3 Re4 Ra2
3r1R2/2Rn4/2Brb1PR/1r1qPk2/N2B3b/1B3nqn/2R1qNn1/rQ4NK b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 g4 Ke6 Kg2 d5 e4 h5 c4 f5 b4 a5 g6 d3 g7 d2 c5 a4 e5 d4 c6 h4 b6 h3+ Kh2 d3 c7 f3 b5 f4 b7 a3 b6 a2 g5 f2 g6 f3 Be2 f1Q Qb3+ Kf5 Bd1 f2 Bc2 d1N Ne2 Nh6 g8B Qe1 Nd2 f1Q Rg1 Be7 Ne4 d2 Bb2 Ra5 Rc1 a1R Rh1 Ne3 Bd5 d1R Ng1 Nf7 Bc3 Bd7 c8R Rb5 Qb1 Ng2 Bcb3 Ng5 Rc2 Qfe2 Bb2 Qh4 Nf2 Rd2 R8c4 Be6 Rc8 Qd7 Bc6 Rdd5 Bd4 Rd8 Rc7 Qd6 Rd7 Bf6 Rf7 Qhg4 Rf8 Nd7 b8R Qc5 b7 Rd6 Rc8 Qd5 b8N Qgf3 Na6 Qfe3 Nf3 Q3d3 Kg3 h2 Nc5 Qde3 Na4 Q3d3 Re1 Qc3 Rc7 h1N+ Kh2 Qcd3 Ne4 Nf2 Rh1 Qc3 Kg1 Qcd3 Rh6 Nfh3+ Kh2 Qc3 Ng1 Qg3+ Kh1 Nf3 Rg8 Be7 Nf2 Bh4 Rf8+
Nk1N4/2nR1r2/1B1rPnb1/rNKbP2B/2b2r1R/1Nbq2n1/Q5q1/3R1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kd2 d5 Kd3 Kd7 g4 Kc7 b4 a5 e4 f5 c4 h5 e6 a4 g5 a3 e5 a2 g6 f4 c5 f3 g7 h3 c6 h2 Bh3 h4 Bb2 f2 Bc3 f1B+ Qe2 Ra4 Bb2 Nf6 g8B Rh7 Nc3 Bb7 Bf7 Na6 b6+ Kb8 b5 Nc7 Rd1 a1R Nf3 Bb4 Bh5 Rf7 Nd2 Qd7 Bg2 h3 Nb3 Ra5 Bc1 R1a4 Be3 Ba8 b7 Qd8 Kd2 d3 Bb6 d4 Qf2 Be2 Bf1 Qd7 Rg1 h1N Rg4 h2 Rh4 Ng3 Qg2 h1Q Qd5 Ra1 Qc4 Bf8 Qa4 Rc1 Qa2 Bb4 Qb1 Na6 Re1 Qg2 Bd8 Ka7 b8N Qd6 c7 Be4 Qa2 Bg6 c8N+ Kb7 b6 Qdd5 Be7 Nc7 Nc6 Ka8 Bc5 Ra1 Qb2 R1a4 Qa2 Qd6 Nd8 Qd7 Kc1 d2+ Kb2 d1B Nb5 d3 Bf2 d2 Be3 Be7 Kc3 Rf4 Bd4 Bf3 Kc4 Bdc2 Ra1 d1R Rb1 Rd2 Rd1 Bce4 Be3 Bb4 Bd4 Bc3 Bf2 Rd3 Be3 Ncd5 Bd4 Be2 b7+ Kb8 Nb6 B4f3 Na3 Kc7 b8R Qd6 Ra8 Qd7 Ra6 Kb8 Na8 Nc7 Rd6 Bc6 Nb5 Rd2+ Kc5 Bc4 Kb6 Rd3 Bg1 Bf3 Rd4 Qd5 Be3 Qe4 Rd7 Rd6+ Kc5 Qd3 Bd4 Bb2 Kb4 Bfd5 Bb6 Bc3+ Kc5
2N1R2R/1qb2P2/8/B1n1nnR1/1q1qQr1r/2N2BP1/b2B1n1k/1Rqb1KN1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 f4 Kf6 b4 Kf5 g3 a5 d6 c5 d7 e5 b6 h5 d5 a4 b5 a3 b7 h3 b6 h4 d6 c4 Nd2 h2 Qa4 Kg4 f5 h3 f6 c3 f7 c2 Bc4 a2 Nb1 e3 Bb5+ e4 Qa5 e2 Be3 c1Q+ Kf2 e1N Nd2 Ne7 Bc4 Na6 b8R Nd3+ Ke2 Nac5 b7 Qc7 d8B Be6 d7 Rh4 Nb1 Nf5 Qc3 Ra4 Bb5 Ne5 Qe1 Bd6 Bh6 e3 Rc8 Rf4 b8R Qb7 Nc3 Bc7 Rb1 a1Q Bc6 Bd5 Ra8 Ba2 Ra5 Qab2+ Qd2 Q2b4 Qc2 Qcb2 Ke1 e2 Qe4 Qa1 Kd2 e1N Ke2 N1d3 Rca8 Nf2 Kf1 Qab2 Bhg5 Qd2 Rb5 Qdd4 Rc8 Bd6 Ba5 Bc7 d8N Rh7 Rb2 Nh4 Bd5 Ncd3 Qg6 Rf6 Nc6 Nd7 Be4 Rf5 Rd5 N7c5 Re8 Rf6 Rf5 Ne5 Ke2 Rh8 Nf3 Rh6 Ra1 h1Q Qh7 h2 Na7 Kh3 Bd5 Qc1 Nc8 h1B Rab1 Nfe4 Ng1+ Kg2 Be3 Rh5 Rg5 Rf4 Qg6 Rh6 Qc6 Nf5 Rd2 Ned7 Rh8 Kh2 Rd1 Bf3+ Kf1 Rhh4 Bd2 Nf2 Re1 Bd1 Ree8 Ne5 Bf3 Nfg4 Qd5 Nf2 Qe4
Kbrq1k2/B1P2b1q/3PN3/2RB2q1/1Q3N2/N1n1q3/1rBN1n2/bRR1b2n b - - 0 1 illegal: No proof kernel
5kr1/3Rr3/rRrB1N2/1K1n1N2/6P1/b3Bb1B/1QPRnNb1/qbR1r1r1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kd3 d5 g4 e5 f4 a5 b4 a4 f6 e4+ Kd2 e3+ Kd3 a3 b6 e2 f5 e1R b5 a2 b7 h3 b6 h2 Bh6 h4 Nc3 h3 Nce2 Ra7 Rb1 a1R Ng3 R1a6 Bg7 Ba3 Ra1 Ne7 Qe2 Be6 Qe5 Rg8 Bh6 Nbc6 Rd1 Qa8 Be3 Kf8 b8N Rd7 b7 Qa7 Kd2 d3 Kc3 d2 f7 d4+ Kd3 Nd5 Kc4 d3 Kb5 Re7 Qb2 Qd4 Rc1 d1R Nd7+ Kg7 b8R d2 f8B+ Kf7 Qb3 Qa1 Rb6 Ke8 f6 Nd4+ Kc4 Kf7 Qb2 Ne2 Nf5 Ke8 Kb5 Bf7 Rb1 Rc1 Rd6 d1R Bg2 Rd4 Rb6 Rcd1 Rc1 Rc4 Bf1 Rc6 Bg2 Re5 Bd6 Re7 Bf1 Ndf4 Bg2 Ba2 Bf1 Bb1 f7+ Kd8 Nf6 Nd5 Nh7 Kd7 f8R Ke6 Ra8 Kf7 Ra7 Ke8 Bg2 Kf7 Nf6 Kf8 Nf3 Rg1 Ne5 Rge1 Rg1 h1B Rd7 h2 Bh3 Bf3 Nd3 h1B Rg2 Rg1 Nf2 Rde1 Nd1 Ng3 Rd2 Ne2 Nf2 Bhg2 Bec5 Rc7 Bd4 Rc6 Be3
rn1Q1B2/1b3K2/1r1BR3/P2nrNbB/1R1bN3/2bB2rP/4q1Rk/r3Nr2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 a4 f5 e4 g5 d4 b5 d6 c5 h6 c4 h3 Kg3 a5 c3 h7 f3 d5 f4 d7 f2 Ke6 b3 d6 b4 e5 g4 Qe1 f3 Ra3 b2 Qd1 c2 Ra4 b3 Bh6 c1B Kf7 Ne7 e6 Rg8 h8N Bb7 Nc3 b1R Rb4 b2 Ng6 Bg7 Bd3 f1R Nh4 f2 Ngf3 Nd5 e7 Bg5 e8B Ra1 Ne1 b1R Rg1+ Kh2 Nf5 g3 Ne4 Bc3 Bf8 g2 Qd2 Qc8 d8B Qc4 d7 Qa2 Qd1 Qe2 Bde7 Rg6 d8R Rb6 Nf6 Rb3 Rd6 Rba3 Ne4 Rb3 Nc2 Re1 Re6 f1R Bd6+ Rf4 Rf1 g1B Qd2 Bgd4 Rg1 Rf1 Ne1 Rba3 Kg8 Rb3 Bh5 Rba3 Kf7 Rb3 Ng3 Re4 Qd1 Re5 Ne4 Bb2 Bb1 Rg3 Bd3 Bgc1 Qd2 Bbc3 Qg5 Bce3 Qd8 Bg5 Rg2+
NbBB3K/2bP3b/P1B5/bb2Rn2/1r1nbq2/Qr2N1r1/1N3R2/R1r3Nk b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 e5+ Ke4 h5 a4 c5 d4 b5 g4 h3 f4 c4 f6 h4 f5 h2 a5 h3 f7 c3 g5 c2 g6 b3 a6 b2 f6 b4 g7 b3 Nf3 Bd7 Bh6 c1B Nbd2 b1R Bg5 b2 Qa4 Qc7 Bb5 Nh6 g8B Nc6 Nf1 Bf4 Ng1 Nf5 Ne3 Rh4 Qb3 Be7 f8N Bd8 f7 Rb8 Bf6 Rc1 Ne6 b1B+ Qd3 Rg4 f8R Rg3 Nc5 Rc4 Na4 Rb4 Nb2 Rb3 Bc4 R8b4 Bb5 Qb8 Be6 Bc7 Bd8 Be8 Ne2 Bd7 Re1 h1R Ng1 h2 Re2 Be8 Bc8 Bc2 Nf3 Rc1 Rf2 Bd7 Re8 h1B Ba4 Rg2 Ng1 Bg3 Kf3 e4+ Kg4 Bf4+ Kh5 Rg3 Re5 Bg2 Ng4 e3 Kg6 e2 Kh7 e1B Ne3 Be4 Kh8 Bd2 Qb5 Bcd3 Qa5 Be8 Bb5 Bg6 Qa3 Bh7 Ba4 Bb5 Bb7 Kd7 d6 Be1 d5 Ncd4 Rf1 Rbc4 Rf3 Bea5 Rf2 Rcb4 Ne2 Bc2 Re8 Bcb6 Bg5 Bc6 Ng1 Qc7 Re6 Ba7 Be7 Bb8 Bc8+ Ke8 d7+ Kf7 d6 Bd3 Re4 Kg6 d8N Kh5 Nec4 Kg4 d7 Bb1 Re6 Bbe4 Bf6 Bd6 Re8 Be5 Ne6 Bf4 Bd8 Bd6 Ne2 Kh3 Ne3 Bf4 Bb5 Qd6 Nc7 Qh6 Ng2 Kh2 Ng1 Kh1 Na8 Bfc7 Re5 Qg5 Ne3 Qf4 Bc4 Ba4 Bd5 Bb5 Bc6
K1n1N1R1/n1b4k/2rP2b1/RrR5/b1NQP1B1/N3n3/7B/1rbBqRrn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 g4 f5+ Ke5 Kf7 e4 Kg7 b4 a4 d4 f3 b6 c4 g5 h3 b5 c3 d6 h4 Kd5 h2 g6 a3 d7 f4 b7 h3 b6 c2 Bc4 f2 Be3 f1B Nf3 c1B Bb3 a2 Na3 Bd6 Nd2 f3 Bg1 f2 Ndc4 Qh4 d8N Bf5 Nf7 Nc6 b8R Ra6 b7 Rh5 Rc8 Na7 b8R Bc7 Nfd6 Rc6 Ne8+ Kh8 g7+ Kh7 Qd2 Bd3 Ba4 f1N Bd1 Bc2 Rb5 Ba4 Rc5 Qe1 Qe3 Nh6 Ra8 Nf7 g8B+ Kh8 Qd3 Nd6 Be6 Ndc8 Bd7 Bg6+ Bf5 Be5 Bfg4 Kh7 Qc3 Nb5 Ra5 Nba7 Rb1 a1R Rb8 Bd6+ Ne5 Ra6 Rcb5 Ng3 Ng7 Nf5 Nec4 Bc7 Qe3 Ncd6 Rg8 Ndc8 Ne8 Rg5 Kc5 Rb1 d5 Rb6 d6 Rh5 Kd5 Ra6 Qd4 Ne3+ Ke6 Rb6 Rf5 R6b5 Kd7 Rg5 Rf1 Rgc5 Rf5 Bb6 Re5 Rc6 Rc5 Bd8 Bf2 Bb6 Bg3 Bd8 Rg1 h1R Rf1 Rg1 Rff8 h2 Be5 h1N Rf1 Bf6 Bh2 Ra6 Kc7 Bh4 Nb6 Bd8+ Kb8 Bc7+ Kb7 R1b2 Ka8 Rb1 Nbc4 Rab6 Ne5 Rc6 Nec4
2nR3k/nq1B1q2/3P2Pb/1q2B3/2QN2b1/1B1R2K1/1rN1p3/RnbNr1Nr b - - 0 1 illegal: No possible last move
2NN2K1/RBB2pn1/b7/1PB5/2qrRNRb/2nrn1k1/qbQP2qN/r7 b - - 0 1 illegal: No possible last move, all moves rejected
Q1q1B1kq/1NPP1n2/5rRB/5rN1/NKRn4/2p1q2b/bR1b1BR1/1n5r b - - 0 1 illegal: No proof kernel
2b1B3/n3R3/1NnrnN1K/Q1b1BN2/2P1P3/4r1RR/NnnB2pb/kr4q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 b4 g5 c4 d5+ Kf3 a5 e4 f5 h4 d3 b6 Kd4 b7 a4 h6 g4+ Kg2 g3 Kf3 a3 h5 d2 h7 g2 h6 a2 b5 Bc5 b6 Ra3+ Nc3 Na6 b8R Ne7 b7 Nc6 Qe2 d1N Qc2 Nc7 Rh2 Nb2 Rh4 Ne6 Rh3 Qb6 Qa4 Rd8 h8N Rd6 h7 Qa7 Rb1 a1B Ne2+ Kd3 Ra8 d4 Qa5 Kc2 b8N d3 Na4 d2+ Nec3 d1N Be2 Kb3 Na2 Nc3 Nb6 Nb5 Nf7 Kc2+ Be3 Kb3 Kf2 f3 Kg3 f2 Kh4 f1R Kh5 f4 h8B f3 N8d7 f2 Kh6 Rg1 Bf3 f1N Bd2 Ne3 Be5 Nc2 Nf6 Re1 Bd1+ Re3 Rg3 Ra4 Bh5 Rb4 Nbd5 Qb6 Rh1 Nba7 Rhh3 Rb5 Rb8 Rb4 Rb7 Rb5 Nac3 Rb4 Re7 Rb5 Na4 Ka2 Ndc3+ Kb3 Nb1 Nd3 Bec3 Ka2 Rg5 Qb7 Ne5 Ned8 Nf3 Ne6 Nh4 Bb2 Nf5 Ka1 Be8 Qb8 Bb4 Be5 Nbc3 Bh2 Na2 Rb6 Bbc3+ Rb2 Bd4 Qb4 Bc1 Qe1 Be5 Qf1 Bd2 Qg1 Bf4 Rb7 Rgg3 Rb1 Be5+ Nb2 Nb6
B2N1r2/k1Bb1br1/1q1R1Np1/1P5R/4nb2/2rQ1N2/N1n1PbKb/4BnR1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 f5 d4 c5 h4 Kc7 d6+ Kb7 d7 a5 h5 g3+ Kf3 g2 b6 a4 b5 c4 d5 a3 d6 c3 h6 a2 h7 g6 Bd2 c2 Nh3 g1B Rh2 c1B Kg2 f3+ Kg3 f4+ Kg4 f2 Kf3 Ra3+ Kg2 f3+ Kg3 Nf6 Bg2 f1B Bf4 Na6 Nc3 Nb4 Ng5 Nc2 Rh5 Bf2+ Kh2 Ka8 b7+ Ka7 b8N Qb6 d8N Bd7 Qd3 Ne4 Bd2 Be8 d7 Bf7 Be1 Bf4+ Kh1 Rg8 h8B B8d6 Be5 Rg7 Rc1 a1R Na2 Rc3 Rd1 Bdc5 Bc7 B2g3 Rb1 f2 Nf3 Bh2 Nbc6+ Ka8 Ne7 Ka7 Ng8 Bce3 Nf6 Bd4 Bh3 Bde3 Be6 Bh3 Bd5 f1N Ba8 Bf2 Rc1 Bf5 Kg2 Rb1 Ne6 Rb4 d8R Rd4 Rd6 Rd5 Neg5 Bd7 Ne6 Re5 Nd8 Re8 Rb1 Rf8 Bd2 Nfg3 Rg1 Nf1 Be1
2N3r1/1Nr1B1R1/1nb2k1B/1Rnp3q/2r3r1/R3b2B/PKP1q1Rb/2NQ2r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 f4 d5 h4 g5 f6 e5 f5 b5 h6 g4 h7 e4 h5 b3 h6 b4 Qe1 d3 Bh3 e3+ Kd1 g3 Qe2 g2 Qe1 e2+ Kd2 b2 Na3 b1R Rh2 b3 Kc3 d2 Nb5 d1Q Ba3 b2 Be7 Qe8 Na7 Bd7 Nc8 Ra7 Kb3 Rc1 Rb1 Rc7 Qf1 e1R Ne2 g1B Rg2 Qd2 Ka3 Rcd1 Nc1 Re4 Qf3 Rde1 Qd1 Rec4 Kb3 Ree4 Ka3 Qd8 Kb3 Bc6 Rg7+ Ke8 f7+ Kd7 f6+ Rg4 Ka3 Ke6 Kb3 Be3 Ka3 Ke5 Kb3 Rgf4 Rg2 Bg7 f8N Qe8 f7 Qe2 Ne6 Nf6 f8B Ne4 Nc5 Nd7 Nb7 Rg8 h8R Rg4 h7 Qh5 Ka3 Bf6 Bh6 Nb6 Kb3 Nc5+ Ka3 Rf8 Rg8 Bfg5 h8R Bgf4 Rh7 Bh2 Rhg7 Re8 Rf8 Rd8 Rf3 Rg8 Ra1 b1R Rfg3 Rbb4 Rb1 Rg6 Rf3 Rcg4 Rb3 Rbc4 Kb2 Ke6 Rb5 Ke5 Rgf2 Rg1 Rg2 Rgg4 Rf4 Ke6 Rd4 Kf5 Rd3 Ke5 Ra3 Kf5 Bd6 Kf6 Be7+
1N1Knb1b/1q2r3/4p1NB/R4n1r/1n1b2RB/2R1P1QP/2B3qn/nN2k2R b - - 0 1 illegal: No possible last move
2R2b1K/r2b3B/1qpn1PR1/1k4B1/N3nN2/QnPbn1n1/5qB1/1BrRN3 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 h5 Ke3 a5 Kd4 d5 f4 Kd7 g4 a4 b4 c6 c3 e3 b6 e2 g5 e1N b5 h3 g6 h2 e6+ Kd6 b7 h4 g7 h3 b6 a3 f5 a2 e7 Bd7 e8B Na6 b8N Ne7 g8B Ra7 b7 Nc8 Bh7 Ng2 Qa4 Nc5 Nd2 Ne3 Qa3 Qb6 Bg2 Rg8 Rb1 a1N Ne2 Rg5 Rf1 h1Q Nf4 h2 Nf3 Qg1 Ne1 h1N Beg6 Ng3 Na6 Qf2 b8R Rh5 Rb4 Nce4+ Nc5 Rh1 f6 Kc7 Ke5 d4 Na4 Ncd6 Rc8+ Kb7 Rb1 Ka6 Rg1 d3 Bd2 Nb3 Rd1 Kb5 Bc1 Be8 Ke6 d2 Bf5 Nb7 Bfg6 Bd7+ Kf7 Nbd6+ Kg8 Qd4 Nc2 Qc5 Kh8 Qb6 Rdf1 d1B Ne1 Be2 Bd2 Nec5 Bb1 Bd3 Nh3 Nc2 Bg5 Nce4 Nf4 Ne3 Nf3 Nh5 Rd1 Nhg3 Ne1 Rh4 Rh1 Rg4 Rh6 Rh4 Rg6 Rh1 Nc2 Rg1 Rd2 Rd1 Ne1 Rc1 Rd1
r2bK2B/2RPn2P/1Nb1RB1Q/bn2R3/1Npk4/2b1R1bq/q1n5/3r1BN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 h4 Kd6 b4 Ke5 e4 f5 h5 g5 b6 a5 b7 c5 h6 c4 h7 f3 Ke3 f2 b5 a4 b6 a3 d6 g3 d7 g4 Rh5 g2 Nc3 a2 Nd5 g3 Nb4 Na6 b8R Be7 b7 Qa5 d8B Bd7 Rc8 Bc6 b8N Nc7 d3 Bf6 Qd2 Nb5 Rc7 Ne7 Rb1 a1B Rb3 Bc3 Bb2 Qa2 d4+ Kd6 d5 Ke5 Rh6 f4+ Kf3 Rf8 Kg4 f3 Kh5 Rf7 Qg5+ Kd4 e5 Rf8 d6 Rf7 Nh3 g1B e6 g2 Nd7 Bh2 Ng1 Bg3 Nb6 Rg7 d7 Rg6 Bd3 f1N Qc1 Ne3 Bf1 f2 Ba1 N7f5 e7 Nc2 e8R Ne7 Ra3 Rg8 Rb3 Bfh4 Re6 Rg5+ Kh6 Rd5 Kg7 Bg5 Kf7 B5h4 Nh3 g1B Qh6 B1h2 Ng1 Bf6 Bg2 f1Q Bb2 Qf5 Bf1 Qh3 Kf8 Be1 Re5 Bhg3 Ba1 Nc8 R8e6 Bg5 Bf6 Rd6 Bg7 Bd8 Ke8 Ne7 Bh8 Bb2 N4d5 Ba5 Rbe3 Bbc3 R5e4+ Kc5 Nb4 Rd1 Bb2 Bd2 Bbf6 Bc3 R4e5+ Kd4 Kf8 Na7 Kf7 Nb5 Ke8
1b2K2Q/Bp2b3/5q2/R7/2RR2q1/1PqNqnn1/BP2bNq1/NkBrNr2 b - - 0 1 illegal: No possible last move
2b1k3/1pBRqN2/B2Pbn1b/Q2P4/n7/r2RNKb1/1r1N1b2/Rq2B1Bn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 a4 h5 g4 c5 f4 b3 d4 e4 d6 b2 g5 e3 f6 c4 a5 c3 f7+ Kd7 a6 h3 g6 h2 a7 c2 g7 h4 Bd2 c1B Qa4+ Nc6 Nc3 b1B Kf3 h3 Nd5 e2 Ne3 e1B Qa5 Qe8 Ba6 Nf6 g8N Qe6 Nh6 Bg3 Be1 Qe7 Ra3 Bg7 f8B Ke8 Nf7 Nb4 Rd3 Bh6 Bg7 Bb2 d5 Rh7 f5 Na2 Bh8 Nc3 Bg7 Ng8 Bd4 Na4 f6 Ba3 Bb6 Bc5 Bc7 Rg7 Nd1 Bcf2 Ne3 Rb8 a8R Rg6 Ra7 Ra8 Ke2 Rg4 Nf3 Rb4 Nd2 Rb2 Kf3 Bc2 Rg1 h1N Rf1 h2 Rg1 Bgf4 Rg7 B4g3 Nh8 Kd7 f7 Nf6 f8B Ke8 Nf7 Bb1 Rh7 Bc2 Bg7 Be6 Rc3 Bcf5 Rd3 Bc8 Bh8 Bfe6 Bg7 Ne4 Bc3 Nf6 Bd4 Nd7 Qb4 Nc3 Bc4 Qh4 Nd8 Bg1 Nef1 Nf2 Ra1 Ra3 Qa5 Na4 Ba6 Qg5 Bdb6 Qg7 Be3 Nf6 Bc5 Qf8 Rd7 Qe7 Nf7 h1Q+ Ke2 Qe4+ Re3 Qb1 Kf3 Nh1 Rd3 Bge3 Ba7 Bef4 Bg1 Bf2 Ne3 Be5 Qc3 Beg3 Qa5
2nKB3/r1BB4/3qBk2/2Nq1bnP/r1R3n1/p3N1N1/RR3bP1/1rq2rQ1 b - - 0 1 illegal: No proof kernel
Q5r1/q3rBnb/2bn4/2RR3p/RK3N1b/3q2BR/Pn1P2kN/1B1bq1N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 g4 Kf6 d6 h5 d7 b5 Qe2 e5 Nf3 c5 Qe3 e4 Ng1 c4 Nf3 h3 Nc3 b3 Ne2 c3 Qa7 e3 Nfg1 b4 Rb1 h2 Qb6+ Nc6 Ng3 b2 Qa6 b3 Kd1 Ne7 Bd3 Rg8 Nf1 Qa5 d8R Ra7 Rd5 c2+ Ke2 Rb7 Qa8 Qa7 Ra1 b1B Bb2+ Ne5 g5+ Kg7 g6 Kf6 g7 c1N+ Kd1 Be6 Ba3 b2 Bd6 Nf7 Be4 Nd3 Bc7 Rh8 g8B Nd6 Bf7 Rg8 Ke2 Bc2 Rc1 b1Q Bb8 Ba4 Rcc5 Nb2 Bd3 Qc2 Be4 Qb3 Bb1 Bh6 Bc7 Bg5 Bb8 Bh4 Bc7 Kg7 f6+ Kh6 f5 Kg5 Bb8 Kg4 Bc7 Nbc4 Bb8 Qb5 Kd3 e2 Kc3 e1Q Bc7 Qba6 Bb8 Rd7 Kb4 Nb2 Bc7 Bd1 Bb8 Ne4 Bg3 Qae2 Bg6 Qe3 f7 Nd6 f8N Qd3 f6 Nef5 Bf7 Re7 Ng6 Ng7 Nf4 Bf5 Bg6 Re2 f7 Re7 f8R Be4 Bf7 Bh7 Nge2 Kf3 Rb8 Qaa6 Rb6 Qa7 Ra6 Ngf5 Ra4 Ng7 Rg1 h1B Nh2+ Ke4 Rf1 Bf3 Rh1 Bg2 Ng4 Kf3 Rh3 Bh1 Ng6 Kg2 Ngf4+ Kf1 Ng1 Bhf3 Nfe2 Kg2 Nh2 Bfe4 Re5 Bb7 Red5 Bc6 Nf4+
3B1RNq/6R1/2BN2Bk/Q4n1p/bq3q2/nRbN2P1/r2Rr2P/1qb2n1K b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 e5 d4 a5 c4 h5 g3 f5 Kg2 Kf7 d5 Kg6 b6 e3 d6 a4 b7 f3+ Kh3 f4+ d7 f2 Kg2 a3 c6 e2 c5 e1Q c7 a2 c6 e4 Bb5 f1N Nd2 e3 Nc4 e2 Nf3 Ba3 Nfe5+ Kh6 Nd6 Qb4 Qe1 Na6 b8R Ne7 Nd3 Nf5 Bb2 Rg8 Bf6 f3+ Kg1 Bb7 c8B Re8 c7 Bc1 Bc6 f2+ Kg2 Qb1 Qa5 e1Q Bh4 Qf6 d8R Re2 Rf8 Qh8 Bd8 Qeb4 Bd7 Bc8 Be8 Bd7 c8N Nc7 Ne7 Nb5 Bg6 Na3 Rg1 Ra6 Kh1 Ra7 Rg2 Be8 Bf3 Ba4 Rb7 Nd2 Bc6 f1Q+ Rg1 Qf3+ Rg2 Qff4 Rf2 Nf1 Rb6 Re4 Rd2 Re2 Rb7 Q1b2 Rb1 a1B Rd7 Qa2 Rb3 Bc3 Nd5 Qb1 Rg7 Rae7 Nf6 Re8 Rd1 Ra2 Rd2 Re2 Ng8+
3bKnQR/1R3B1N/2kN2nR/1q2PP1B/1rNr4/6q1/1Bb1pbn1/3r1r1N b - - 0 1 illegal: No proof kernel
2RbNq2/nN3Q2/B1r1qRKB/b3p1R1/RPPB3N/kn3b2/2n4n/q4r2 b - - 0 1 illegal: No possible last move
1Nb1r3/1n1Rqn1k/3NQpBr/2qr2Pr/3BR1R1/2P3N1/KB1q3b/1n4R1 b - - 0 1 illegal: No possible last move, all moves rejected
3RKn2/Q2NBRP1/p7/bbNqq2B/1qNb4/P2k1rR1/2Nnbrr1/7B b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 Kd7 Ke3 h5 Kd4 e5+ Kc4 h3 Kb5 h2 g4 e3 f4 e2 d4 e1Q g5 h4 g6 e4 c6+ Kd6 c7 e3 a3 e2 g7 h3 f5 Nd7 Bg5 Ngf6 Bg2 Ne4 f6 Nd2 f7 b6 Nf3 a6+ Kb4 b5 Rg1 Qf6 Bh1 Qe5 Rg3 Rb8 Ka5 b4 Bd8 Be7 f8N b3 Ra2 Bb7 c8B b2 Ra1 Bf6 Be7+ Kc7 Kb4 Kb6 d6 Bc6 d5 Bb5 Nd4 Rh6 Qa4 Rg6 Nc2 Qd1 Bb7 e1B Qb3 Rc8 Qe3+ Rc5 Bf3 h1B Bh5 h2 Qf2 Bf3 Qe3 Nb3+ Nd2 h1R Rc1 b1Q Ba8 Nb8 d7 Rh3 d8N Nd7 d6 Bfe2 Nde6 Rh2 Qd4 Rf2 Bh1 Rg5 Qe3 Rgf5 Qd4 R5f3 Qe3 Kc6 Qd4 Rc3 Qa7 Kd5 Nc4 Nd2+ Ka5 Rg2 Nc5 Qb3 Rb1 Rff2 Ra1 Rcf3 Rb1 Nb8 Kb6 Nd7+ Kc7 Qa4 Kd8 Qb4 Nb7 Ke4 Ke8 Kd3 Ra1 Nc5+ Nd7 Ne6 Rc1 Nf8 Nc5+ Kc3 Na1+ Kd4 Rc3 Qdb3 Re3 Qd3 Nc2+ Kc3 Re4 Qdd4 Rf4 Qdd5 Na4+ Kd3 Rf5 Bg5 Rf7 Be3 Nc5+ Kc3 Rf5 Ne4 Qc7 Qb2 Rf7 Bd4 Qa7 Qb3 Kd8 Bd2 Nb8 Qb2 d7 Qb1 Na4+ Kd3 Ke8 Ba5 Nc5+ Kc3 Nc6 Nd2 d8R Qb4 Rc8 Nd7 Nb8 Nf8+ Nbd7 Ng6 Rd8 Nf8 Nb7 Kd3 Nc5+
r5qB/Nq2P2b/b1N2Rk1/p1r2nqb/r5N1/P2QnKBN/R7/b4B1R b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 Kf2 b5 g4 a5 d4 h5 e4 f5 g5 Kf7 c6 f3 c7 h3 d6 h4 d7 b4 e5 h2 d5 f4 d6 b3 e6+ Kg6 e7 b2 a3 h3 Ne2 Nf6 Qe1 Rh5 Ra2 Bg7 Nd4 Nd5 Nc2 Ne3 Qd2 Nc6 Nb4 Qg8 d8R Ba6 c8N Nd4 d7 Ndf5 Nc3 b1B Ne2 Ba1 Rf8 Rh4 d8B Be4 Rg1 h1Q Nc6 h2 N8a7 Bc2 Qd3 Qg2+ Ke1 h1Q Bc7 Bd1 Bb2 f2+ Kd2 f3 Bg3 Bc2 Bh8 Ra4 Rf7 Qh5 Rh1 Qh4 Ng1 Bd1 Be2 f1R Nh3 f2 Rf8 Re1 Bf1 Bh5 Rf7 Rc1 Rf6+ Kh7 g6+ Kh6 Qe4 Qg5 Qd3 Rc5 g7+ Kh7 Ne5 Qb7 Nec6 Bg6 Ke2 Bf7 Bg2 f1B+ Kf3 Bg6 Kf2 Be2 Bf1 Qd8 g8N Beh5 Nh6 Qf8 Ng4 Qg8 Nh2 Kh6 Rf7 Bh7 Ng4+ Kg6 Kf3 Bb5 Rf8 Ba6 Rf6+
1Q2r1rq/1KRPn1Pb/2B2R2/3n4/1b1nN1Br/1N4Nq/npq1kBR1/7R b - - 0 1 illegal: No possible last move
R1bb1N1n/Kb1pnB1q/3R1nN1/2Rq1N2/1Q1P1B1q/4B1bP/7r/k3r2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 Kf2 Ke7 c4 Ke6 e4 Ke5 c6 Kd4 d3 f5 e5 g5 c7 a5 c5 f3 c6 a4 e6 f4 e7 a3 e8R g3+ Ke1 g2 Kf2 a2 b6 g4 b7 Nf6 Na3 Kc3 Nc4 Bd6 Nh3 g1N Re5 Ne2 Rc5 Ra6 Qa4 g3+ Ke1 g2 Kf2 Qe7 Be3 Qh7 Ne5+ Kb2 Ng6 Ra8 Rd1 a1Q Nf8 Qa2 Qb4+ Qb3 Rd2+ Ka1 Rg1 Qd5 Rh1 Na6 b8B Bb7 c8N Nc7 Ne7 g1B+ Ke1 Bc8 Nf5 f2+ Kd1 f3 Kc2 Nf4 Kc3 Ra5 d4 Be7 Bc4 f1Q Nf2 Qe1 h3 Bh2 Rg1 Ra2 Rg6 Bd8 Nh1 f2 Kb3 Rb2+ Ka4 f1B Ka5 Bg3 Kb6 Bg2 Ka7 Rc2 Rh6 Ng6 Rd3 Ra2+ Ra3 Rg8 Bb3 Nh8 Rg6 Rg7 Ra6 Re7 Rg8 Qe5 Bf7 Ncd5 c7 Re6 Rg6 Ne7 Ra4 Qd5 Raa5 Bb7 c8N Bf1 Bbf4 Bfa6 Nb6 Bc8 Nc4 Bab7 Ne5 Qf2 Rh6 Qe1 Neg6 Re5 Bc1 Qee4 Bfe3 Qh4 Bf4 Re1 Bce3 Qe4 Kb8 Qd5 Ra8 Ba6 Ka7 Rh2 Ne5 Bab7 Rg6 Ng4 Rd6 Nf6 Neg6
qqb2rBb/r2p2RK/rNkn2P1/1qQ5/2NnPqN1/N6R/Rb3B2/1B6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 a5 b4 h5 c4 h4 g4 a4 e4 d3 g6 h3 g7 a3 g5 a2 b6 d2 b7 h2 c5 Nc6 b8N Ra5 g6 Be7 b5 Ra7 b6 Nf6 b7 Rf8 Qc2 d1R g8B Rd6 Be3 Qc7 Nh3 Kd8 Qc3 Ne8 Bd3 Bf6 Nf2 Bh8 Na3 Ke7 Ng4 Nd4+ Kf2 f3 Kg3 f2 Kh4 f1Q Kh5 f4 Kh6 f3 c6 f2 Qc5 Qa5 Bb1 Qfb5 c7 f1Q Kh7 Qf4 Bf2 Qaa6 Qc3 Re6 Nc6+ Kd6 b8R Qab7 Nce5 Qa8 Nec4+ Kc6 Qc1 Nd6 Qg1 Ba6 Re8 Bc8 Re7 Qab8 Rg7 Qa8 Qc1 Qbb8 Re1 Qb5 Re3 h1Q+ Rh3 Qhh2 Bg3 Qhb2 Bf2 Qbb8 Qe3 Q2b5 Qc3 Bb7 c8N Ref6 N8b6 Bc8 Bd3 Re6 Re1 a1B Bb1 Ref6 Re2 Bb2 Qb4 Re6 Qc5+ Kb7 Nh6 Bc3 Bd3 Nf7 Na4 Rea6 Bb1 Nd6 Nab6 Ba1 Ra2 Bb2 Qh5 Kc7 Ng4 Kc6 Qc5+
n1RN3R/BPp2K1Q/1N1R2P1/B3r1r1/2N5/Nb1Bb2n/qq1nbk2/3rn3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 h5 g4 a5 b6 f3 b3 h3 d6 h2 d7 f4 Ke6 Kd4 g5 a4 g6 f2 d3 h4 b7 a3 b4 h3 b5 f3 e5 a2 b6 Ra5 Kf7 Nh6+ Ke6 Ng4 Bf4 Bc5 Bh6 Ne3 Kf7 Re8 e6 Nc2 e7 Ne1 Bd2 Rb5 Bb4 Ke3 d4 Ra5 Bd3 f1N d5 f2 d6 Nd2 Qc1 f1B Ne2 Kf2 Nf4 Be2 Na3 Be3 Nd5 Rc5 Rb1 a1Q Ba5 Qa2 Qc3 Qb2 Qh8 Qa2 Rd1 Rb5 Rg1 h1R Qh7 h2 Rg5 Rg1 Rh5 h1N Rh3 Rg5 Rh5 Rh8 e8N Re5 Rh3 Qh4 d8N Qd4 d7 Qdb2 Nd6 Rg5 Ne6 Rd8 Ndc4 Rc5 Nf6 Rce5 Nd5 Nc6 b8B Ne7 Rh6 Ba6 b7 Nc8 Ba7 Nb6 Rh4 Na8 Ndb6 Bb5 Rh3 Ba4 Rh4 Bb3 Rh6 Rb8 d8R Rc8 Rh8 Rd8 Rh4 Rd6 Nd8 Rg1 Bf5 Kg3 Ne6 Ne4 Rc8 Nhf2 Qh5 Nh3 Nd8 Kf2 Qh8 Rd3 Qg8 Rg2 Rh8 Rg5 Qh7 Rd4 Rd3 Rdd5 Rc3 Rd1 Rd3 Nd2 Rd6 Re8 Be4 Ree5 Bd3
2r1k1K1/P2b3B/2NQ4/pqn3R1/Nn1R3q/bB2r1n1/PBnNNb1q/6R1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 b5 exf4 Ba3 Qf6 Bc1 Qa6 bxa6 Bb4 Bb2 Be7 Bc1 Bf8 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 b5 g4 f3 d4 b4 e4 f2 g5 b3 d6 c4 a7 b2 d5 h3 g6 h2 g7 c3 Qf3 h4 Qd1 c2 Bg2 f1N Ne2 h3 Nbc3 b1N Na4 f4 Bb2 c1B Rg1 Nd7+ Ke6 h1Q e5 h2 Be4 f3 Bh7 f2 Rg5 Ngf6 g8B Ng3 Qd2 f1Q Qd1 Kd8 Kf7 Na3 e6 Nc5 d7 Be3 Rb1 Bf2 e7+ Kc7 d8R Bd7 Ra1 Nc2 d6+ Kc6 e8N Rc8 Qd3 Nd5 Nf6 Ndb4 Ne4 Qhg1 Rb1 h1Q Nd2 Qh4 Rd1 Be7 Kg7 Qgh2 Bb3 Rf8 Qd4 Rf3 Kg8 Re3 Rc1 Qfh3 Rg1 Qf5 Qf6 Qd3 Qg6 Qb5 Qd3 Bg4 d7 Bf5 Re8 Bd6 d8N+ Kd7 Re4 Bh3 Rd4 Ke8 Nc6 Bd7 Ba1 Bf8 Bb2 Nca6 Ne7 Nd5 Nc6 Ba3 Rc4 Ndb4 Qd6 Nc5 Rd4
Q1qNB3/P1N2RR1/qr1p4/n1bP1b2/1NB1k1Br/K4B1b/3n2Rr/2nr4 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 c5 b4 axb4 Qf3 c4 Bb2 c3 Qd1 cxb2 a4 Kf7 g4 h5 c4 e5 f4 b5 d4 b3 Kd2 d6 Kc3 e4 Kb4 h4 c5 e3 f6 Kg6 f7 e2 f5+ Kg7 g6 Kf6 g7 e1R a5 h3 a6 h2 c6 Re8 c7 Rh7 g5+ Ke7 f6+ Ke6 g6 Kf5 a7 Re1 Ka3 Ke4 Nf3 Ne7 g8B Rh4 g7 Nd7 Ra2 Nc6 Be2 Nc5 Ne5 Nd3 Rg1 Nc1 Nd3 h1R Nb4 Bh3 c8B Rb8 Bcg4 Rb6 Rg2 Be7 f8N Rh2 f7 Qc8 Ne6 Bf6 f8R Na5 Bf7 Rf1 Qd2 Rd1 g8B Bg5 Nd8 Be3 Bfc4 Qa6 d5 Bc5 Qc3 Rh5 Bcd3+ Ke3 Rg1 Rh8 B4e6 Rh4 Bh5 Bd4 Qc8 Rhd2 Rg7 Rh2 Nc3 b1B Bgf7 b2 Nbc6 Bc2 Be8 b1Q Bf1 Bg6 Raf2 Qf5 Qa8 Bh7 Bc4 b4+ Ka4 b3 Rff7 Bg6 Bhe2 Bc5 Nb5 Ke4 Rg2 Qg4 Nc7 b2 Bb3 b1N Nb4 Nd2 Bbc4 Bh7 B6d7 Qe6 Ka3 Qf5 Ba4 Qfc8 Bad7 Bg6 Bdg4 Bf5 Bef3+
1BN1bq2/b2N1n2/RbKP4/Q1R1pb2/1RB1P1r1/1n3n1B/bB1r1b2/4N1k1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kf2 Kd7 h4 Kd6 b4 Ke5 e4 Kd4 d3 e5 b6 a5 h5 c5 g6 f5 d6 g3+ Kf3 a4 d7 a3 g7 g2 h6 a2 h7 c4 b7 c3 b5 c2 b6 Nh6 g8B Nc6 b8B Nf7 b7 Bc5 Ba3 c1N Rh6 Nb3 Rh1 Ba7 Nc3 Qf8 Rc1 a1B d8Q+ Bd7 Nd5 Be8 Kf2 f3 Rc5 f4 Qa5 Bb6 Ke1 f2+ Ke2 Ra6 Rh6 f3+ Kd1 Ba7 Ne7 Ke3 Kc2 Bd4 Bb2 Bb6 Nc8 Ra8 Ne2 g1B Bh3 f1B Nf4 Kf2 Ng2 Be3 Kc3 Ncd4 Kb4 Ra7 Qa1 Ra2 Ne1 Bg2 Rg6 Kf1 Kc4 f2 Kd5 Nf3 d4 Ba7 Ra6 Bb6 Bc1 Rd2 Qa5 Ba7 Bb2 Bb6 Bd7 Bh3 Kc6 Bf5 d5 Ba7 d6 Bb6 Rc4 Ba7 Rb4 Beb6 Nd3 Kg2 Ne1+ Kh1 Bd4 f1B Bb2 N7g5 Be6 Bgf2 Bc4 Rg8 h8R+ Kg1 Rh2 Nf7 Rh3 Nh2 Rd3 Nf3 Rd5 Bd3 Rdb5 Bb1 Rc5 Nh6 Bc7 Rg4 b8N Bh5 Bde6 Ba2 Nd7 Be8 Bb8 Nf7 Bf1 Qg8 Bh3 Qf8 Bc4
2rR3N/5P2/q1r1R3/2rnBBr1/P2KN1bR/nr2R3/Qp4N1/bnB2k1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 g4 Kc5 f4 h5 a4 e5 d6 b5 g5 e4+ Ke3 b3 g6 h3 g7 h2 d7 h4 f6 b4 f5 b2 d3 b3 f7 h3 f6 Ne7 g8R Rh6 Qg4 Na6 Qf4 Nb4 Nd2 b1N Nc4 Bg7 f8N Nc2+ Kf2 Kd4 f7 c5 Qb8 e3+ Kf3 e2 Nd2 e1R Ra3 c4 Ne4 c3 Ng6 Nd5 Re8 Qb6 d8B Qa6 Nh8 Rc6 Bc7 Re3+ Kf2 Bf5 Re6 Bg4 Qd8 Be5 Qg5 Rg3 Qd2 Rc8 Bg2 Rf3+ Ke2 Rf5+ Bf3 Rg5 Bd6 Nce3 Qa2 c2 Kf2 Nc4 Bc7 Bh5 Bg4 Bf6 Bf5 Bg4 Nd6 Kc3 d4 Rc5 Ne4+ Kd3 Nf3 Rc6 Re1 h1R Nh4 h2 Be5 Rg1 Re2 Rg3 Ng2 Bg7 Rh6 h1R Rh4 Re3 Bb2 c1R Re1 Nf4 d5 Rc5 d6 Nd5 Re2 Rc2 Bc1 Bf6 Bf4 Ba1 d7 Rc3 d8R b2 Rb3 Nca3 Be5 R5c6 Rb6 R3c5 Re1 Kc2 Re2+ Kd1 Rb3 Rec3 Rb6 Rb3 Re3 R6c7 Rbd6 R7c6 Re6 Qc4 Rg3 Qa6 Nd2 Ndc3 Ke3 Nd5+ Kd4 Ke2 Ne4 Kf1 Re3
N4R2/r2Bn1K1/3bk1nn/NR1bP1bb/P1nb1Q1B/5r2/1p1BR1q1/4BN2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 g5 Ke4 f5+ Ke5 b5 h4 c5 e4 b3 d4 b4 a4 c4 h6 g4 h7 f3 h5 f4 h6 c3 Ba3 b2 Rh2 f2 Ne2 f3 Nc1 c2 Nb3 c1B N1d2 b1B Bb5 f1N Bd7 g3 Re2 g2 Na5 Ng3 Nf1 g1B Qd2 f2 Qf4 Ba2 Rb1 Nf5 d6+ Kf7 d5 b3 Bc5 Ne7 Be3 Ra7 Bd2 Rg8 h8B Rg3 h7 Rf3 Bf6 Nh6 h8B Qb6 Bhg7 Qc6 Rb2 Bb7 Be1 Bb1 Bh8 Bc2 Rb1 Bd1 Bh4+ Kg8 Kf6 Ng6 e5 Qc2 Rb2 Nc6 Bg7 Nce7 Rb1 Nhf5 Bh6 Qb2 B6g5 Nh6 Qf5 Ba8 Bgd2 Bc6 Qf4 Qa2 Nh2 f1N Rb2 Ne3 Nf1 Bf2 Bh3 Qa3 Bb4 Bb5 Red2 Nc6 d7 Bc4 d8N Rg3 d6 Bh5 d7 Bd6 Qd4 Qa2 Ne6 Bd5 Nc7 Nc4 Na8 Rf3+ Bf5 Bg1 Qe4 Bd4 d8R+ Nf8 Rb1 Ne7 Rh2 Bf4 Bd7 Qf2 Bbc3 Qg1 Re2 Qg2 Bcd2 Bfe3+ Qf5 Bf4 Ra1 Bfe3 Ra3 b2 Rb3 Bf4 Rdb8 Bfe3 R3b5 Bf4 Bc8 Nfg6 Qg4 Kf8 Qg5 Ke8 Kg7 Bfe3 Qg4 Bg5 Qf4 Kd8 Ba6+ Kd7 Rf8 Ke6 Bb7 Re3 Bc6 Rf3 Bd7+
qrk1r1bN/1bR1B1RB/4QK1n/B1P3Nb/1np4N/nnR2b1B/5P1b/8 b - - 0 1 illegal: No proof kernel
bnk1QBKR/2rNPpRB/qbB5/6nN/R4rP1/2b1B1b1/b1n4N/6n1 b - - 0 1 illegal: No possible last move
2Qn4/4p3/RNq2rrN/nkP1r1R1/1BbP2nR/1B1N4/1BnB2rn/1K4b1 b - - 0 1 illegal: No proof kernel
3B2rk/3P4/3qPp1b/3Rrn2/2Br2N1/1b2rbNr/R1Bn4/Q1KR1BbN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 c5 Kd2 h5 b4 a5 e4 h4 g4 c3+ Kc2 a4 g6 c4 b6 f3 b7 f6 g5 h3 b5 f2 d5 h2 e5 a3 b6 a2 d6 Ne7 g7 Kf7 g8B+ Kg7 g6 Nd7 b8R Rh3 b7 Nb6 Bd5 Nf5 Ne2 Kh8 Nd2 Be6 Ne4 Bh6 Be3 Bf7 Rg1 h1B N2g3 Bf3 Kc1 c2 Nh1 Ra3 Bd2 Re3 Neg3 Qf8 d7 Be6 Bg2 f1R Ba5 Rfe1 Bf1 Bg8 Re8 Qd6 b8N R1e2 Be4 Rg2 Rb1 a1R Nc6 Ra4 Rb5 Rb4 Rd5 Ra4 Kb2 c1R+ Bc2 Rge2 Ra8 c3+ Kb3 Nc4 Bd8 Rb4+ Ka2 Nd2 g7+ Kh7 Ra5 Rd4 Ra3 Bf7 g8B+ Kh8 Qe1 Rb1 Ra7 Rb8 Qa1 Nb3 Kb1 Nd2+ Kc1 Re1+ Bd1 c2 Ra2 R1e2 Rda5 Bb3 Bc4 Rc8 e6 Re5 Rd5 R2e3 Ba5 Rg8 Bb6 Re1 Bd8 R5e3 Ne5 R1e2 Ng4 Re5 Kb2 c1B+ Kc3 Ba3 Bc2 Bc5 Kb2 R2e3 Kc1 Re2 Bb6 Rde4 Bd8 Bce3 Bg2 Rd4 Rf1 Bg1 Rd1 R2e3 Bgf1
6Br/2P2Rkn/K2B1Nr1/2rQR3/1N1b1n2/1Bq2RrN/nPb1p3/2n1R2n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 h5 Kc4 d5+ Kc5 a5 f4 d3 g4 a4 c4 d4 f6 d2 g5 h3 f5 h4 b6 e5+ Kb5 a3 b7 h2 c5 d3 c6 a2 c7 h3 Qe1 d1R Qf2 e4 Nd2 e3 Qe2 Ra6 Ngf3 Qd4 Ne4 d2 Qd3 e2 Rg1 h1R Bg2 h2 Re1 Bg7 Ng1 Ne7 Nh3 Nd7 b8N Qc3 Nc6 Nd5 Nb4 Nf8 g6+ Kg8 Bf3 Nh7 f7+ Kf8 Qc4 Rg1 Nf6 Nf4 Bd5 h1N Qc6 Be6 Bb3 Rg3 Qd5 Rc6 Ka5 Rc5+ Ka6 Bd7 Ne8 Bd4 Nf6 Kg7 f8R Bc6 Re8 Bd7 Re5 Ba4 Rf1 Re1 Rf3 d1N Rb1 a1N Be3 Kh6 g7 Reg1 g8B Kg7 Bf2 Rg6 Bg3 Rg2 Bh2 R2g3 Rc1 Ndf2 Re1 N2d3 Rc1 Nc2 Re1 Ne6 Nd7 Nc1 f6+ Kh6 f7 Kg7 f8R Nf4+ Ka7 Ng5 Nf6 Nh7 Na2 Nb4 Kb6 Nbd3 Nb4 Na2 Ka6 Ndc1 Bc4 Bc2 Bb3 Rg1 Rh5 Ng2 Bd6 Nf4 Re5 R1g3 Rf7+
K3NQ1q/BNPNR3/1qP2R2/n2Brb2/7n/BNr2qb1/1p4k1/qq2q2R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 Kd2 Kf7 Ke3 Kf6 Kd4 b5 Kd5 e5 f4 h5 c4 b3 g4 d6 a4 h3 g5+ Kf7 g6+ Kf6 c6 h2 a5 e4 c7 h4 c5 b2 a6 h3 a7 e3 g7 b4 Bc4 e2 Nf3 e1Q Na3 b1Q Nd2 b3 Qf3 b2 Nb3 Nc6 Be3 Nh6 g8R Na5 Nb5 Rh7 Rh8 Re7 Rh7 Re8 Rf1 h1Q Re7 h2 Bf2 Rb8 a8N Qg1 Be3 h1Q Bf2 Qg7 Be3 Qh8 Rf2 Nb7 Kc6 d5 Nd6 d4 Bd5 d3 Kb6 d2 Ka7 Na5 Nb7 d1Q Rf1 Qg2 Rh1 Nc4 Ra6+ Be6 Qf1 Na5 Rg7 Qe7 Nb6 Qa2 Nc8 Qh4 Ncd6 Qdb1 Qf2 Rbd8 Be4 Qaa1 Bf3 Bc8 Ka8 Qe6 Rb6 Re7 Rc6 Rde8 Bd5 Qgh3 Qf1 Qhe1 Rh7 Rg7 Bf2 Rg3 Rd7 Re7 Ne8+ Kf7 f6 Kg6 f7 Kh5 f5 Kh4 f6 Nf5 Bg1 Rc3 Bd4 Bg7 f8N Kg3 f7 Be5 Rcd6 Nh4 c6 Bf4 Bc5 Q6e3 Ba7 Re5 Re7 Qb6 Rg6+ Bg4 Nd7 Qg2 f8B Qge4 Ree6 Qf5 Ba3 Qfe4 Qc4 Kg2 Qc5 Qf3 Qf8 Bg3 Re7 Bf5 Rf6
1Nk2K1R/b1PR2n1/pr1rb2q/4n3/4NP2/B2RrQBN/r1b4r/2b2B1B b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kf3 h5 Ke4 d5+ Kf3 Kd7 g4 e4+ Kf4 d3 Ke5 d2 b4 e3 f4 h3 c4 d4 c5 h4 f6 d3 g5 e2 b6 e1B b5 h2 b7 h3 f7 Bf2 g6 Qb6 g7 Qh6 b6 Nf6 g8B Ne8 Ra3 Ng7 Qf3 d1B Nc3 d2 Ne4 Bc2 c6+ Kd8 Rb3 d1R Ba3 Rd6 Rd3 Be6 c7+ Kd7 Bh7 a6 Bg6 Nc6+ Kf6 Ne5 b8B Kc8 Ba7 Rb8 b7+ Kd7 Be3 Rg8 Bd2 Ba7 Ba5 Re8 b8N+ Kc8 Be1 Rb6 Bb2 Ba3 f8R Rd8 Rf7 Rge8 Bg3 Rdd6 Rd7 Re7 Ba1 Bc1 Bb2 Re8 Ba3 Re7 Qe2 Re8 Nf3 Re7 Nfg5 Re8 Qf3 Re7 Rg1 h1R Rg2 h2 Nh3 Rg1 Rgd2 h1R Rh2 Qh5 Bf5 Rg2 Bg4 Re8 Bf5 Qh6+ Bg6 Rh8 Ke7 Re2 Bh7 Re3 Bg8 Rg1 Kf8 Rg2 Rh1 Bcb3 Rh2 Ra2 Rh1 Bc2 Rh2 Beb3 Rh1 Rh7 Bd5 Bc4 Ba8 Be6 Ng1 Bf7 Nc3 Qh2 Qd1 Bd2 Bag2 Bg8 Ne4 Bc1 Qf3 Qh5 Rh4 Be6 Bh1 Qg6 Rg4 Rh2 Rh4 Qg5 Rh8 Qh6 Nh3
8/B1pQ1B1b/rr1RrR2/B3n3/3b1bNP/2N1qn2/R1Nb1PrN/Kbk5 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 a4 Kd6 d4 b5 Kd2 e5 Kc2 g5 Kb2 b3 a5 g3 f6 e4 a6 b4 f7 g4 a7 e3 Rh2 g2 Bc4 g3 Be2 Rh6 Qf1 Qg5 Ra5 Re6 Rh3 Nf6 Na3 Nc6 Nc2 Ng4 Ka1 Bg7 Bd2 Nh2 Nf3 g1B Qd1 g2 Ra2 Ne5 Bc4 e2 f8B+ Qe7 Rg3 e1B Rg6 Bb7 Bc3 Bd2 Rf6 Bh8 Bh6 Ba6 Be3 b2+ Kb1 Bg7 Bb3 Bd3 Bc4 Rb8 a8N Bh7 Nb6 Ra8 Na4 Ra6 Bb3 Nf1 Bc4 Bh2 Bb3 Bg3 Nh2 g1R Qg4 Rg2 Qf5 Kd7 d6 Kc6 d5+ Kb5 d7 Bf4 Ba7 Qc5 d8N Qe3 d6 Ka5 Ng4 Nh2 d7 Nf3 Nf7 Bh8 d8R Kb5 Ra3 Bg7 Ka2 b1B+ Ka1 Bh8 Ba2 b3 Nh2 Kc4 Ba5 Bg7 Nh6 Bh8 Rdf8 Bg7 Qh3 Kd3 N6g4 Ke2 Rb8 Kd1 Rb6 Kc1 Rc6 Bf8 Nc3 Bc5 Ra4 Bd4 Rd6 Re8 Nb4 Bbg6 Nh6 Bc2 Qd7 Re7 Bb1 Re8 N6g4 b2+ Ka2 Bcd3 Bc2 b1R Bb3 Bde4 Bf7 Re6 Ra3 Rb2+ Ka1 Bb1 Nc2 Rbb6 Ra2
N1Rr2bn/b1n1r1k1/n1K4B/2R2pNr/4Qn1B/R3B2N/3PPb2/3Bq2b b - - 0 1 illegal: No possible last move
6rn/3rQ1Nr/3q1n1p/b2rBbRn/1RB1R3/1NPbn1P1/8/1NK1B1Bk b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 b4 Kf6 f4 e5 g3 d5 b6 a5 b5 e4 c3 h6 b7 e3+ Kc2 d3+ Kb2 d2 b6 d4 Ra2 d3 Qe1 d1N+ Kb3 e2 Qf2 e1N Rd2 h3 Ka2 a4 Qf3 h2 Nh3 a3 Qe3 Bb4 Re2 d2 Ng1 Qd6 Nf3 Nd3 Nd4 Ne5 Nb3 Nbd7 b8R Ba5 b7 Nf7 Qe4 Rh7 Qe7+ Kg7 f6+ Kg6 f5+ Kh5 Ka1 Kg4 Re4+ Kf3 Bc4 Nh8 f7 Kg2 f8N a2 f6 Ne3 Kb2 d1R f7 a1R Ne6 Rd5 f8B Ngf6 Bd2 Nh5 Kc1 Ndf6 Ng7 Bf5 Be1 Ra7 Rf1 h1B Rff4 Ra2 Rg4 Ra8 Rg5 Rad2 Rc8 Kg1 b8B Bg2 Ba7 Bf1 Rb8 Bd3 Rb4 Kh1 Bb6 Nd1 Bg1 Ne3 Ne6 Rd8 Bg7 Rg8 Nbc5 Nfg4 Be5 Ngf6 Ng7 Rb2 Rb8 Rb7 Nb3 Rd7 Rb4
2rB3r/3B3p/1NQ1Pqb1/1r1nnNkN/2n2R2/R1R2b2/P1bb4/N2nB1K1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 d4 b5 g4 f5 e4 c5 e5 b3 d6+ Kf7 e6+ Kg6 d5 b4 d7 f3 d6 c4 Rh4 f4 Nc3 b2 Qd5 b1B Qc6 b3 Na4 c3 Ne2 c2 Nb6 b2 Kg1 Bh6 Bd2 c1R Nd4 Bc2 Nb3 b1B Be1 Ra5 Bb5 Qf6 d8R Ne7 d7 Bb7 Rf8 Nd5 d8B Nd7 Rh3 Ne5 Ba4 Kg7 g6 Rb5 g5 f2+ Kh1 f1N Kg1 f3 Rg3 Qe7 Rf4 Nd2 Rh3 Bd1 Rg3 Bd3 Rb1 Qf6 Na1 Rcc5 Rb3 Ndc4 Rc3 f2+ Kh1 f1N Kg1 Bf5 Ra3 Bdc2 Rgc3 Rb2 Bb5 Nfe3 Ba4 Nd7 Bb5 Nd1 Ba4 Kf8 g7+ Ke8 g8N Bg6 Ne7 Rbb5 Nf5 Kf8 Qc7 Nde5 Qd7 Rc8 Qc6 Bh5 g6 Kg8 Rg4 Bd2 Rf4 Bf3 Ng3 Kg7 Nh5+ Kh6 g7 Bfe4 g8N+ Kg5 Nh6 Bg6 Nf5 Nb4 Qd6 Bf3 Qc6 Nd5 Qa8 Rb2 Bd7 Rb5 Qc6
nbBk1b1B/3P3n/rNb3pn/2r1Rr1b/2r5/1B2RqQR/1P1B2NN/6K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 d4 c5 e4 f5 h4 c4 b6 g3+ Kg2 a4 e5 g6 h5 a3 h6 c3 e6 a2 e7 c2 d6 f3+ Kh3 f2 Kg2 f4 b7 Na6 b8N Nc7 d5 Bd7 h7 Nh6 Qd3 Ra5 Nd2 Rc5 Ndf3 Na8 Ne2 Bc6 Bd2 c1B Nd7 Qb6 Qa3 Qb7 Nb6 Rc4 Rb1 a1R Rh3 Ra2 Qc3 Ra6 Nh2 f3+ Kh1 Rg8 h8B Rg7 Bg2 f1B Nf4 Be2 Kg1 Rc5 Bf1 g2 Qb3 Bd1 Bc4 Rf7 Qe3 Rf5 Bb3 Rc4 Ra1 Re5 Ra3 Rg5 Kf2 g1N Ng2 Rh5 Kf1 f2 Qg3 Nf3 Ra5 Ng5 d7+ Kf7 e8B+ Ke7 d8R Nh7 Rb8 Rf5 Rc8 Bh5 Bd7 Rc5 Rc7 Kd8 d6 Rf4 Bc8 Rfc4 Rg7 Qf7 d7 Qf3 Be3 Bd2 Re7 Bc3 Bc1 Be5 Bd2 Bb8 Re3 Qf5 Nf3 Re5 Ke2 f1R Rb5 Rf2+ Ke1 Qe4 Nh2 Rf4 Rd5 Qf3 Rc5 Rg5 Rf5 Rc5 Rd5 Rfc4 Rde5 Qd1+ Kf2 Qf3+ Kg1 Rf5 R3e4 Rd5 Re2 Rdc5 R2e3
1NR5/2P2Rr1/1K2brB1/1Q3nN1/1N2p2b/B2RN2n/1Bbq2P1/rn1nb2k b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 c4 h5 b4 d5 f6 h3 f3 h4 b6 d3 f7 h2 b5 h3 b7 d2 b6 Kf4 Qa4 Kg3 f4 d1B f5 e5+ Kb5 d4 f6 d3 c5 e4 c6 d2 c7 Rh6 Qd4 a4 Qd5 a3 Qc5 a2 Nf3 Na6 b8N Bc2 b7 Be6 Qb4 Nc5 Nc6 Nb3 b8N Ne7 Nc3 Nf5 Na6 Be7 Nd1 Rc8 Rb1 a1B f8R Bc3 Rg1 h1R f7 h2 Qc5 Nd6+ Kb6 Bh4 Be2 Qg5 Rh8 Rg8 f8B Rg7 Rf1 Rg1 Rf2 h1N Nab8 Qf4 Rf1 Nf2 Ng5 Kh2 Bh5 Nh3 Bb2 Kh1 Qb5 Qf2+ Ne3 Qe2 Rf7 Rf6 Rd7 Nf5 Rf7 Rc1 Ra1 d1N Ra3 Nd2 Bg6 Ra1 Rb3 Qd3 Bfa3 Nb1 Nb4 Bce1 Rc8 Qd2 Rd3
kBBb1q2/2r3q1/7b/R1br3N/nRR1Q1br/1KPB4/n5pP/N3BN1r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 a5 b4 g5 e4 f5 e6 d5 e7 Kd7 e8R Kc7 e5 Kb7 b6 g3 e6 f4 e7 g2 b5 g4 Bc4 f3 Ba3 g3 Bd6 f2 Qe2 f1R Nf3 g1B Qf2 a4 Be2 g2 Bf4 d3 Kc3 d4+ Kb4 d2 Ka3 d1Q Bd3 Ra7 Ne1 Nc6 Nd2 Bg4 Qf3 Rh4 Qe4 Nf6 Bg3 Ka8 Rc1 Rf5 Nf1 Bh6 Ra1 Qb8 Rc8 Rc7 e8B Rd5 Bd7 Nb4 Be6 Na2 b7+ Ka7 Kb2 a3+ Kb3 Nd7 Rb1 Qa8 b8N Nb6 Nd7 Na4 b6+ Kb7 Rb2 Qa1 Nf6 Qb8 Nh5 Ka8 Bb5 d3 b7+ Ka7 Bed7 d2 Bd3 d1R Rb1 Qa8 b8B+ Kb7 Be6 Bc5 Rg1 Qg7 Bf5 Be7 c3 Bd8 Nc2 Rc1 Ba7 Qb8 Na1 Ka8+ Bb6 Rd1 Be1 Nb4 Nd2 a2 Rf1 Rc6 Ba5 Rd4 Bf2 Bdg5 Ka3 Rc1 Rc7 Qbf8 Bc8 Bd8 Bg3 Rd7 Rf5 Rh1 Be1 Rd6 Rb5 Rd5 Nf1 Rcc5 Rc6 Rc4 Bc7 Rcc5 Nb3 a1B Bb8 Na2 Rc7 Nc1 Kb4 Bb2 Na1 Rc6+ Rc5 Na2+ Kc4 Ba3 Rb2 Ra6 Ra5 Ra7 Rb1 Bd6 Rb4 B6e7 Kb3 Bd6 Rcc4 Bc5 Ba6 Rc7 Bc8+
1r3bN1/2q1NKn1/3NRRQ1/1p1r3k/4B1nb/2qP1b2/Pq2BbRq/2B2B2 b - - 0 1 illegal: No possible last move
6b1/n1NK1PqR/p3rb1k/BR1bN2r/1b2BP2/Q1R3r1/3B2rq/1N2R1n1 b - - 0 1 illegal: No possible last move, all moves rejected
R1n1q1r1/2PR4/nR2NQk1/q5N1/1BB1N3/R1n1bqrb/1P3qp1/Kn5B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 h4 Kf7 e4 a5 c4 d5 Kc2 g5 b6 d3+ Kb3 d4 Ka2 g4 e5 f3 c5 f4 b7 a4 h6 f2 e6+ Kg6 c6 g3 e7 a3 c7 d2 h7 d3 Ne2 f3 Nd4 Bh3 Nc3 Na6 b8R Bh6 Ne6 Be3 Ne4 Qe8 Rb6 Ra7 Qa4 d1Q Qd4 d2 Bc4 f1N Qd6 f2 h5+ Kf7 h6 Kg6 Qf4 Qf3 Qd6 d1N Bd2 Rb7 Bb4 Nd2 Qf4 f1Q Qf6+ Kh5 Rh2 Nb1 Rd2 Q1f2 Rd7 Ndc3+ Kb3 Qf7 e8B Ne7 Ra2 Rf8 h8N Nc8 h7 Rg8 Ra1 Qg6 Nf7 a2 Nfg5 Rb8 Bf7 Rg7 Bg8 Qe8 h8R+ Kg4 Bh7 Kh5 Bf1 Rg8 Bg2 Rg6 Bh1 g2 Rf8 Ra8 Bg8 Rb8 Nd8 Rg7 Bc4 Rg8 Nde6 Rg6 Nf7 Rg3 Nfg5 Ne7 Rd2 Qc6 Rf7 Rg8 Rd8 Qe8 Ra8 Nc8 Rd7 Na3 Rc1 a1Q Rcd1 Na2 R1d5 Nb1 Ra5 Nac3 Rad5 Qa5 Rd3 Na4 Ka2 Qc2 Rab8 Qcf2 Ra3 Nac3+ Ka1 Nd6 Qh8+ Kg6 Ra8 Nc8 Qf6+
5bR1/2p2kq1/RqPP3b/1Q1q2rr/2b2N1b/R1B4R/1K1Nn2N/B2qn1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 e4 dxe4 Be2 Qd7 fxg5 Bb7 g6 Bc8 g5 Qd8 Bg4 hxg4 c4 f5 b4 e5 d4 a5 Kd2 g3 Kc2 e3 h4 e2 h5 e1B g7 g2 b6 f4 g6 e4 b5 e3 d5 f3 h6 e2 c5 a4 c6 a3 h7 a2 b7 f2 b6 f1Q d6 Na6 b8B Ne7 g8N Nf5 b7 Ng3 g7 Kf7 Nf3 g1Q Nf6 Be6 g8R Nc5 Rh3 Bc4 Bd2 Nd3 Nh5 Ra5 Nf4 Qb6 Bc3 Rg5 Ba7 Bd2 b8R e1B Ra8 Ne2 Nh2 Bh4 Qe1 Bc1 Nd2 Qe7 Qf2 Qe4 Qc5 Qd5 Qb5 Qfg1 Re8 Qgd4 Ree3 Qg7 Ref3 Qb7 Bg1 Qb6 Rb1 a1Q Rfg3 Qaa5 Ra1 Qa4+ Kb1 Qd1 Ra6 Ne1 Ba1 Qge5 Rga3 Qf6 Rg6 Qg7 Bc3 Rg8 h8B Rh5 Ba1 Qh6 Rg2 Rgg5 Bhc3 Qg6+ Ne4 Be3+ Kb2 Qg7 Nd2 Re5 Ne6 Bh6 Rg6 Reg5 Nf4 Qh8 Rg8 Qhd4 Qb3 Qg7 Qb5
R1rn4/1P5K/1NR1N3/1bpB3k/1b3BNQ/1Pq4b/n2RRnB1/qrb2n2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 h5 Ke4 f3 g4 a4 d4 f2 b3 a3 g5 a2 d6 h3 d5 h4 g6 h2 b6 h3 g7 Ne7 g8B Nec6 b7 Qf6 Nc3 Nb4 Qd4 N8c6 Na4 Nd8 Bg2 f1B Nf3 c5 e3 Bb5 Ne5 Bh6 d7+ Kf8 d6 Kg7 Rg1 h1N Ng4 Kg6 Nb6 h2 Rf1 Qg7 Rf6+ Kh5 Kf5 Nf2 e4 h1Q e5 Qe1 e6 Qc3 e7 Bd2 Rb1 a1B e8R Na2 Re2 Bb2 Ra1 Be1 Bh6 Bc1 Bf4 Ra4 Qe4 Rd4 Rg6 Rd1 Qa4 f6 B8d5 Bed2 Rb1 Qa1 Rb2 Bb4 Rbd2 Nc6 Be5 Bca3 Ne3 Bc3 Rg3 Nd3 Qe4 Rb1 Rg6 Bc1 Na8 Bb4 Bg3 Nde5 Qc4 Re8 Nb6 Ng4 Qe4 Re6 d8R Re8+ d7 Rg8 Ke6 f5 Bc7 Qgc3 Kf7 Re8 Rf6 Rf8+ Kg7 Re8 Kh7 Rg8 Bf1 f4 Qd4 f3 Bg2 f2 Re8 f1N d8N Nce5 Rc6 Nf2 Rf8 Bg4 Ne6 Nf7 Ra8 Bh3 Qf6 Rc8 Bf4 Nd8 Ng4 Rc7+ Qe7 Rc8 Qh4+
k1rrq3/bq1r3b/2Q1r1Rr/1R3BPp/3nBqN1/4B3/KN2r1RP/5NB1 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 f4 gxf4 Ke2 Nd7 Kf2 Ndf6 Ke2 cxd4 Ke1 d3 Kd2 d4 Ke1 Nd5 exd5 Bg4 Nf3 Bh3 Ng1 Bc8 Kd2 Kd7 g4 Kc7 b4 Kb7 c4 h5 c5 a5 g5 e5 d6 f5 d7 f3 b6 f2 b5 f4 Na3 e4 Nb1 a4 Nf3 a3 Qe1 a2 Na3 Ne7 Bg2 f1Q Nc4 Nc6 Rg1 Rh6 Nb2 Qe8 d8B e3+ Kd1 d2 Kc2 d1R Kb3 d3 Qc3 e2 Be3 e1Q Nd2 Bf5 Be4 f3 Rg2 f2 Qc4 Kb8 b7 Bh7 Bb6 Qc8 Rc1 a1R Qa4 Rb1 Ka2 Nd4 c6 Bc5 Qa6 Qc7 Rc3 Qh1 Nf1 d2 Rb3 Qf4 Rd3 Ne2 Rd6 Nd4 Rg6 Rdc1 Qa4 d1R Qa6 Rd2 Qa4 Re2 Ba7+ Kc7 b8N Rc3 Qc2 Rd1 Nd7 Rd8 Ne5 Rdd3 Bb6+ Kb8 Ng4 Ka8 Ba7 Bb6 c7+ Rc6 c8B Rdd2 Ng3 f1R Bcf5 Rf3 Bg1 Rfe3 Nf1 Bc5 b6 Rd1 Bd3 Rcc8 Qa4 Re6 Qd7 Qb8 Bde4+ Qb7 Be3 Qg1 Qc6 Qgf2 Bb8 Rdd2 Bg3 Qf4 Bgf2 Nc2 Bg1 R2d7 Bd2 Bf2 Be3 Nd4 Qc7 Rc2 Bc6 Nb5 Bd2 Ree8 Bd5 Qc6 Qd6 Qe6 Bc1 Re2 Bd2 Bc5 Bde3 Nd4 Qc7 Qee5 Bde4 Qh8 Qd6 Re6 Qd5 Qe8 b7+ Ka7 b8R Bb6 Rb7+ Ka8 Qc5 Ba7 Rb5 Qb7 Qc6
B5nR/1n1nrn1R/2r3kq/2B4B/K2p2b1/Q2PNP1q/2N2r1r/R1qR3N b - - 0 1 illegal: No possible last move
1R3Rk1/1nN5/1bqBn3/4brB1/q3B1b1/1PN2Pqn/QNNKp1p1/r4R2 b - - 0 1 illegal: No possible last move, all moves rejected
5B2/2n3Q1/P1q5/p1RpNB2/Bb1K4/RrN1nrnk/3PN1q1/rBbb1R2 b - - 0 1 illegal: No proof kernel
1qBB4/4B1p1/2Q1k3/1q3bPN/1R1bpq1n/K1PrbNNr/1n1R3n/4B1R1 b - - 0 1 illegal: No possible last move
bn2R3/1Br1pbNR/r4Bn1/2N1qR2/1b1Qr3/qP1B1k1p/1NK2P2/1B4n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 c4 Kf6 g4 Kg5 b6 Kf4 f6 d5 b7 a5 b3 h5 g5 h3 g6 h2 g7 d3 c5 h4 c6 d4 f7 h3 c7 a4 Be2 a3 Bh5 a2 Qe2 Qd5 Na3 Nf6 g8B Qe5 Nc4 Be6 c8B Ng4 Bh7 Bg7 f8N Ra6 Nf3 Bf7 Rg1 h1B Ne1 Bh6 Kd1+ d2 Bb2 Bg2 Rc1 a1Q Kc2 d1N Qd3 Qa3 B5g6 Nc3 Ba1 Bgd5 Nb2 Ne2 Qd1 Bc6 Ned3+ Kf3 Nc5 Bd2 Nfe6 Bb4 Bd3 Bd5 Bhf5 Rh4 Ng7 Bc6 Rg2 Be4 Qd2 Ng1 Bg6 Rh6 Bh7 Rhc6 Rd1 Rc7 Bhf5 Nd7 b8R Ba8 Rb5 Nb8 Bb7+ Qe4 Rc1 Ne5 Rg4 Qd5 Rh4 Ng6 Rh7 Qe4 Re1 Qd5 Re5 Qe4 Rd5 Qe5 Rd8+ Qe4 Kd1 Qd5 Bb1 d3 Re8 Qe4 Qc3 Qd5 Qf6 d2 Kc2 d1R Qd4 Re1 Bd3 Ree6 Rb6 Re4 Rf6+ Kg4 Rf3 Qe5 Rf5 Re6 Nc4 Qd5 Qe3 Ra6 Bf6 Qe6 Qd4 Qe5 Rfh5 Kf4 Nb2 Kf3 Rf5+
N1N2Qq1/1qr1p1n1/1q3B1P/1PBpkr1n/K4R2/bn2B2R/b5bN/3R1B2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b6 Kf7 Kd2 Kf6 h4 d5 f4 g5 b4 a5 c4 d3 Kc3 g3 Kb3 d2 c5 g4 b5 g2 b7 a4+ Ka3 g3 h5 Nc6 b8B Qd7 h6 Ra7 Bd6 Nd4 c6 Ne6 c7 Bg7 Nf3 g1Q Qc2 d1B Nbd2 g2 Nc4 Qc6 Qd2 Bb3 Nb6 Qd4 Qe2 g1Q Na8 Qdb6 Be3 Qg5 Kb4 a3 Bdc5 a2 Rd1 a1N Qf2 Ba2 Rh2 Bd7 c8N Rc7 Ka4 Qcb7 Rh5 Nb3 Nh2 Be8 Rh4 Bh5 Rh3 Be2 Qf3 Bd3 Qf2 Be4 Qf3 Qg4 Qf2 Bg2 Qf3 Kf7 f6 Kg6 f7 Kf5 f8B Nf6 Qf2 Nh5 Qf3 Bb2 Bg7 Qg6 Qf2 Ke4 f5 Rf8 f6 Ba3 f7 Qh7 Be5 Neg7 Qf6 Qg8 Bb2 Rd8 f8R Rd6 Bc3 Re6 Qf7 Re5 Qe8 Rg5 Rf2 Rf5 Qf8 Qf7 Bf6 Qg8 Bfg5 Ke5 Rf4 Nf6 Bh4 Nfh5 Bf6+
1BB2br1/1P2Nn2/Bq6/2RQ1bb1/KNN1pqq1/P2R1p2/1r1n1R1R/2kr4 b - - 0 1 illegal: No proof kernel
B3Rb1n/BPQn4/b1qr4/1R4K1/Rr1p2b1/PnN1N3/2q1k2p/BNqR4 b - - 0 1 illegal: No proof kernel
1n2K1NR/3B4/R1b1n3/4N3/1nnq1pPR/N1N3b1/1nrrk1Pp/QB2b1B1 b - - 0 1 legal: proof: f4 b5 d4 g5 a4 c5 axb5 cxd4 h3 g4 hxg4 e5 Ra6 exf4 Ra2 Nf6 Ra1 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 c4 a5 b4 d5 e4 f5 c5 a4 b6 a3 c6 a2 c7 h4 b5 d3 b7 d2 b6 d4 Bd3 f3 Bc2 h3 Qf1 f2 Rh2 d3 Qe1 f1N Rh1 h2 Ba3 d1N Ne2 d2 Bc5 Nde3 Na3 d1N Nc3 Nf6 Bb1 Ned5 Bg1 Nfd7+ Ke6 Kf4 Kf7 Bd6 e5 Nd2 e6 Nc4 e7 Nf8 e8B Bd7 c8N Bc6 Ne7 Nb4 Ng8 Ne6 Bd7 Ndb2 Qd1 Qf6+ Ke8 Qd4 Qa4 Rh3 Qd1 Rd3 Qe1 N8a6+ b8R Rd2 b7 Bc7 Rd8 Rc8 b8N Ba5 Bd3 Rc7 Rd1 a1B Bb1 Ba4 Nc6 Nb8 Ne5 Bc6 Qf1+ Kg3 Rc1 f4 Qd1 Bb6 Qa4 Bc5 Rf1 Be7 Re1 Bh4 Re3+ Bf3 Nd5 Nb6 Nac4 Ng7+ Kf8 Nd1 Bbf5 Rc6 Ngf6 Rc8 Rc3 Rb2 Be3 Rc7 Ke7 Re2 Rh8 Ne6 Ke8 Be4 Rb3 Bc3 Ng8 Nb2 Ra1 Be1 Bg1+ Bf3 Rd3 Rd2 Qd1 Rc5 Ra6 Rc6 Na3 Rc4 Ne3 Bc6 Qa1 Rc1 Rb3 N6c4 Bb1 Rcc2 Nd5+ Qd3 Bd4 Qe3 Rd3 Kf2 Nc3 Kf1 Bc5 Qg1 Rh3 Bhg3 R3h4 Qe3 Na2 Ke2 Ba7 Qc3 Bg1 Qd4 Nc3+
bk5n/nr4Nn/2rq3B/1RP1Np2/Bb2Rn2/4pB2/1PrnNQ2/1R1B2K1 b - - 0 1 illegal: No proof kernel
1brnqb2/k1NP4/4Q3/2R2Rp1/B1KPB1n1/B2N2pR/n2N3n/Br1n3b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 b4 Kd7 e4 c5 Ke2 Kc7 Kd3 Kb6 h4 g5 d6 f5 e5 a5 e6 f3 d7 a4 h5 f2 e7 f4 e8B f3 h6 g3 h7 a3 Nh3 a2 Bg2 f1N Qb3 f2 Qe6+ Ka7 Ba3 Nh6 Nf4 Ba6 Rh3 Nc6 Be4 Bb7 Kc4 Rb8 Nd3 Rg8 h8B Ng4 Be5 Nfh2 Bf6 f1N b6+ Ka8 b5 Nfe3+ Kb3 Nd1 Kc4 Rc8 Bd4 Kb8 Bf6 Ba8 b7 Ka7 b8R Qe7 Rb6 Nd8 Rd6 Rg7 Rd5 Rf7 Bd4 Rf1 Rf5 Bc6 Bf7 Qe8 b6+ Kb8 b7 Ka7 b8N Rg1 Bh8 Bb7 Kb5 c4 Na6 c3 Nc7 c2 Kc4 c1N Bg6 Re1 Bc6 Rg1 Ba4 Bh1 Rc5 Re1 Be4 Rf1 Nf2 Re1 d3 Rg1 Nd2 Rf1 Rb1 a1B Rbb5 Be5 Bg7 Bed6 Ba1 Na2 d4 Be5 Nd3 Rg1 Na8 Bb8 Nc7 Nb2+ Kb3 Rb1 Rf5 Nd1+ Kc4 Rb3 Rbd5 Rb1 Rc5
6N1/BR1pRB2/bnbn1Pq1/3n1R2/5b1K/3npN2/1r2P2Q/N1Rk1nBr b - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h4 f5 hxg5 fxg4 c4 Kf7 f4 Ke6 Kf2 Kf5 Kg3 Ke4 b4 a5 f5 e5 b6 h5 b7 d3 f6 d2 c5 Ke3 b5 e4 b6 a4 c6 h4+ Kg2 h3+ Kg3 a3 g6 a2 g7 h2 c7 Qe8 Bb2 Ne7 g8R Qg6 Rg7 Nbc6 b8N Nd4 b7 Nd5 Nf3 Bd6+ Ne5 Nb5 Qc2 d1N Qa4 Nf2 Nc6 Nd3 b8B Nb6 Bg2 Ba6 Na3 Kd2 Raf1 a1N c8R Nc2 Rc7 Ne3 Nc2 Ned5 Ba7 Rab8 Ne7 e3 Na1 Rb7 Rf5 Rh5 Rhf1 h1B Rfc1 Rh8 Ng8 Rh2 R1c2+ Kd1 Qf4 Rh4 Bf3 Bg2 Qh6 Rh1 Qh2 Rb8 Kh4 g3 Rb7 Bc7 Rc6 Nd6 Bh5 Be4 Rh7 g2 Rg7 g1N Re7 Bg2 Bc3 Be4 Be1 Nf3+ Kh3 Nd2 Kh4 Nf1 Bf2 Nb5 Nf3 Bf4 Rc3 Nd6 Rc8 Nc7 Bg1 Bc6 Bg4 Ncd5 Bh5 Qg2 Be8 Qg6 Bf7 Na8 Rbc7 Rb2 Rb7 Nab6 Rcc7 Bcb5 Rc5 Bc6 Rc1+
NR6/K2n2p1/3N1b2/1rpN1B1N/nR4rr/1Bb2b2/k1PPn3/q3BRQr b - - 0 1 illegal: No possible last move, all moves rejected
1BBRBK2/p3n3/rb5R/N1nr2qp/1n2NP2/b2Pk3/NBb4R/1r2Q1r1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 c6 f4 h3 b4 e3 g5 h2 g6 e2 g7 e1R b6 Bf5 b5 Nd7 b7 Rh6 b8N Bc2 b6 Nc5 d3 e5+ Kc4 e4 b7 e3 Ne2 Qa5 Nbc3 Ne7 Ng3 e2 Bh3 Rg1 g8B e1B Bb2 Bf2 Bf7 Re6 Qe1 Be3 Nd7 Rd8 b8B+ Qc7 Ra5 Na4 Nb6 Ng8 Nf1 c5 Nb1 Bd1 Rb5 Rg3 Rg1 h1R Rg2 Rgg6 Rb4 Rg7 Kb5 c4 Be8 c3 Qh4 c2 Nc3 c1N Nd2 Bc2 Rh2 Na2 Qf2 Rf6 Bc8 Rb1 Qe1 Rg1 Re4 Bf2 Re7 Bc5 Rh7 Ba3 Rh8 Nb4 Na2 Rfg6 Rh6 Rf6 Ka5 Kc5 d6 Qg7 d7 Qg5 Nbc4 Kd5 Kb5 Ra6 Ne4 Bc5 Na5 Bb6 Rh8 Nc5 Rh7 Ke6 Rh6+ Kf5 Kc4 Kg4 Kd4 Kf3 Kc4 Qg2 Kd4 Qg4 Ke5 Qf5+ Kd6 Qg5 Qf1+ Ke3 Qd1 Nf6 Ke7 Ng8+ Kf8 Ne7 Bb7 Rc8 Qf1 Rc7 d8R Rd7 Bc8 Rd5 Qe1+
2rk2R1/n3Nr2/1R1bR2r/B2nrN1b/1Q1q2p1/1q4r1/1pNB1P1P/2B2K1B b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 g5 a4 b5 f6 c5 a5 e5 a6 g3 d6 b3 a7 c4 d5 g2 Ra5 b4 Rc5 e4 Qd4 e3 Bd2 b2 Rc6 b3 Na3 e2 Nc2 c3 Qb4 Rh6 Rb6 Ne7 Nf3 g1R Nfd4 Bg4 Nf5 Rg3 Bg2 Nbc6 f7+ Kd7 Rg1 Bh5 Bh1 Rc8 a8R b1Q+ Bc1 b2 Raa6 Qa2 Bd2 Qb3 Bc1 Bg7 f8B Be5 Rg2 Ke8 Rg1 Na7 d7+ Kf7 d6 Nd5 Bd2 Qf6 d8B Ke8 Rg2 Bf4 Bc1 Qd4 Bg7 Rc7 Bh8 Rf7 Bhf6 Kf8 d7+ Bd6 Bc7 Rg7 d8N Ke8 Be5 Rf7 Bef4 Kd7 Nc6 Kc8 Nce3 c2 Nce7+ Kd7 Rc6 Ke8 Ba5 Kd7 Rcb6 Kd8 Bd2 c1R+ Nd1 Rc2 Nde3 Rc8 Nc2 Be5 Re6+ Bc7 Rab6 Bd6 Bc1 Qg7 Kd2 e1R Rg1 Re4 Be3 Qh8 Ke1 Qd4 Kf1 Re5 Bed2 Rh3 Rg3 g4 Rc3 Rd3 Rcc6 Rg3 Rg6 Bc7 Rce6 Bd6 Rg8+
2R1BnK1/N2N1BB1/1b2b1r1/N3PR1P/4Rp2/pN1bQ3/n2bk3/1qb1rq2 b - - 0 1 illegal: No possible last move, all moves rejected
1Bq1r3/1n5n/1n1qRN2/1p1bN1N1/1knK3R/np3RP1/1PB2r2/1Qb1B2N b - - 0 1 legal: proof: e4 a5 h4 g5 c4 gxh4 Qb3 d5 cxd5 f5 Qb4 axb4 exf5 Qd7 Nc3 Qd6 Nb1 Qd8 Ke2 Kd7 Ke3 Kd6 a4 Kc5 f4 h5 g3 e5 f6 b5 f5 c6 a5 e4 a6 h3 f7 h4 a7 h2 d6 b3 d4+ Kb4 f6 h3 d5 c5 d7 c4 d6 c3 Bd2 Bb7 Be1 Bd5 Na3 Qc8 d8N Bh6+ Kd4 e3 f8N e2 d7 Bc1 f7 Nf6 Nh7 Rf8 Ne6 Re8 d8R Nbd7 Bg2 Nb6 Rd6 Rb8 f8B Ra8 Bd2 e1N Neg5 Re2 Bf3 Rf2 Be4 Rb8 Bf4 c2 Nc4 Ra8 Ne5 Rb8 Bh6 Ra8 Nf8 Nh7 Nfd7 Rb8 Nf6 Ra8 N1f3 Rb8 Nd2 Ra8 Rg1 h1Q Re6 h2 Bd3 Qg2 Nde4 h1N Ra2 Rb8 a8Q Qh3 Bg7 Qh6 Ra7 Qg6 Rc7 Qh6 Bh8 Qhf8 Qa1 Qd6 Rg2 Rd2 Nfd7 Nf2 Ng6 Qcf8 Rc8 Qc6 Rg1 Nd1 Rh1 Ne3 Qb1 Rh2 Bc7 Qcd6 Nf2 Bd2 Bf6 Rg2 Rh4 c1N Nh1 Rf2 Be4 Ncd3 Bh8 Rb7 Bb8 Bc1 Be5 Rc7 Nf6 Re7 Bf4 Nc5 Rc7 Qc8 Ne5 Nb7 Rc3 Nec4 Bd2 Re8 Bf5 Ng2 Be1 Na3 Bg6 Ne3 Bc2 Nec4 Rf3+
N1Bq1N1q/5npp/PR1Rb1n1/6N1/kn2R2R/2bn2PQ/5rr1/BB4nK b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 h4 Qd6 b4 axb4 fxe5 Qh6 h5 Qxh5 Na3 Qh6 Nb1 Qh2 Kf2 Kd7 e4 f5 d4 b5 a4 c5 d6 Kc6 d7 c4 d8R f4 a5 c3 e6 c2 e7 b3 e8B+ Nd7 e5 f3 e6 b2 e7 b4 Ra4 b3 Qe2 Qd6 g3 Nh6 Nd2 b1Q Bb2 c1N Nh3 Nd3+ Kg1 Kb5 d5 Nf7 Ba1 b2 Rh4 f2+ Kg2 Qf6 Nc4 Ka4 d6 Qc2 Qd1 b1N Qg4 Nd2 Ng5 Nf3 Qh3 Ng1 a6 Rb8 Be2 Rb2 Bg4 Qb3 Rh2 f1N+ Kh1 Ne3 Be6 Ra2 Rb2 Qb8 Rb6 Nd5 Bf5 N5b4 Bg4 Nh6 Bg6 N7e5 e8R Nhf7 d7 Rg2 Be4 Ng6 Bef5 Ndf4 Bb1 Nfd3 Re4 Be7 Be6 Rf8 Rc6 Nd6 Bf5 Qd4 Bg4 Bf6 Nb6+ Kb5 Na8 Ka4 Be6 Be5 Rb6 Rff2 Rh8 Qd5 d8N Nf7 Bg4 Bf6 Nde6 Bc3 Rd8 Qd7 Bf5 Qe8 Rd7 Qh8 Rdd6 Bd7 Nf8 Qd8 Be6 Bc8 Bd5 Bg4 Bb7 Be6 Bc8
2BN1qq1/1Rp4b/3Bk1nn/1N2p1K1/1b1nB2n/1PN1P1R1/1nQ3rr/5N1R b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Qa4 d5 cxd5 Ba6 Qe4 Bc8 Qe6 gxf4 g5 Nd7 Qh3 Nb8 Qg4 hxg4 Kf2 Kd7 h4 e5 d4 a5 b3 f5 h5 a4 d6 g3+ Kf3 a3 e3 a2 g6 g2 d5 Bh6 b6 Ba6 g7 Qe8 b7 Nc6 b8R Bd3 Nc3 Nce7 Ba3 Ng6 Nge2 g1Q Bg2 Qf8 Re1 a1N Rb7 Nc2 Ng3 Rh7 Bb4 Ra2 Nf1 Bg5 h6 Be7 Bh3 Rh8 h7 Nh6 g8B Qg5 Kf2 f3 Rg1 Qg4 Rg3 f4 Bf7 Rg8 h8Q Rg7 Qh7 Nd4+ Nd2 Be4 Rh1 Bc2 Nf1 Rg8 Kg1 f2+ Kh2 f3 Ba3 Qe6 Bf5 Rg7 Be4 Bb1 Bg8 Qef7 Kh3 Rc2 Nd2 f1N Bb4 Nh2 Nf1 f2 Ba3 Kd8 d7 Nhf3 Bd6 Q7e8 Be6 Nfh4 B6f5 Qg8 Bg4 Qef8 Bgf5 Nf7 Kg4 Nh6+ Kh5 Rd2 Bc5 Bd6 Kg5 Ke7 d8N Re2 Ba3 Bb4 Ne6 Kd7 d6 Bc2 Nh2 f1N Bh3 Nd2 Nf1 Rh2 Bg4 Ndf5 Nd4 Nc4 Ndb5 Ke6 Bh3 Nb2 Bg4 Kf7 Bh3 Nd4 Bc8 Bb1 d7 Ke6 Ra7 Ba5 Bd6 Bb4 Rb7 Rf7 Bc2 Rff2 Bd3 Rfg2 Be4 Ng4 Qh5 Nh6 Qe2 Bd3 Qc2 Ne7+ Bg6 Qgf7 Bh5 Bh7 Bf3 Neg6 Be4 Q7g8 d8N#
4r2q/1pB4q/BBb1R2n/1rPN1p1N/K4P2/NR3nb1/B3rk2/1R1r1Q1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 d5 exd5 c5 d4 cxd4 Kd2 Kd7 a4 Kd6 c4 Ke5 Kc2 Ke4 Kb3 f5 g4 h5 f4 e5 g6 d3 d6 d2 g5 Ke3 g7 e4 a5 h4 a6 h3 d7 h2 g6 Qg5 d8B Rh6 a7 Nd7 Qh5 Qh4 Ra3 Be7 Ka4+ b3 Bc7 Kf2 Ne2 d1R Ng3 b2 Rb3 e3 Na3 b1R c5 e2 Bd2 e1R Bda5 Qh3 Bab6 Ne5 Ba6 Re2 Qg4 Rb8 a8N Nf3 Nh5 Bh4 Rg1 h1Q Re1 Rc2 Re6 Bg3 Qh4 Re2 Qg4 Ne7 g8B Qh4 Bf7 Ng8 g7 Q1h2 Qh3 Bd7+ Kb4 Re8 Ka5 Ne7 g8R Bc6 Rg7 Ng8 Kb4 Be4 Ka4 Rh8 Rh7 Nh6 Bg8 Qf6 Rd7 Qg7 Rd2 Qh7 Rdb2 Ra1 Rb1 Raa2 Ba7 Rab2 Nb6 Qh1 Nd5 Qh2 Rc3 Rb5 Bab6 Qh1 Rcb3 Qh2 Ne3 Bc6 Nd5 Ree1 Rf6 Rh1 Bf7 Re2 Re6 Re8 Nb4 Qg2 Rbe3 Ree1 R6e5 Kg1 Ba2 Qb2 Re6 Re2 Rb3 Qbh8 Nd5 Kf2 Qf1+
2q2R2/R1b2K2/1R2nb1B/1BN2N2/Q2BP1k1/Npr1Pnrp/b7/R1b2q1n b - - 0 1 legal: proof: h4 d5 c4 dxc4 b4 g5 hxg5 a5 f3 axb4 Na3 e5 Nb1 e4 fxe4 Ra3 Rh5 Ra7 Rh1 Ra8 Kf2 Kd7 Kf3 Ke6 Kf4 f5 g4 b5 a4 c5 g6 h5 g5 c3 g7 c4 d3 b3 a5 c2 g6 h4 a6 b2 a7 b4 Ra6+ Nc6 Rh3 c3 Re3 h3 Ra1 Nge7 Kg5 f4 g8N f3 g7 f2 Nf3 Nd4 Na3 b1N Nh6 Rg8 Ne5 Nd2 Rf3 Nef5+ Kg6 Ng3 Nf5 Nh1 Nd7 Be7 Nc5+ Ke5 Kf7 Bf6 Rg3 Kf4 Rg6 Ne6 d4 Ba6 d5 Bc4 d6 Ba2 d7 Rc8 a8R b3 Ra7 Rc6 Bb2 Nf3 Qd4 c1B Qa4 c2 Bd4 Qc8 d8B Bd2 Rh6 c1B e3+ Kg4 Bb5 f1Q Bc7 Bb4 Bf4 Ba5 Bg5 Bc7 Rg6 Rh8 g8R Rh5 Bh6+ Rg5 Nd7 Rc3 Rf8 Kh5 Nc5 Rg1 Rg7 Rg3 Rh7 Kg4 Rhh8 Qa8 Rb8 Qb7 Rhf8 Qc8 Rb6
2K3B1/2Qr3r/1b1q3P/kqq1RRNp/3p1r2/Pnnb2N1/1N3BB1/rN5R b - - 0 1 illegal: No proof kernel
4RR1Q/B2krB1n/6P1/1q1N1rP1/b1bN2qp/1B1N1R2/Kp2rn2/bN4r1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 a4 b5 d4 h5 Kd2 c5 Kc2 f5 Kb2 b3 g4 f3 e4 h4 a5 c4 d6 f2 d5 f4 e5 b4 e6 f3 e7 Qd7 g6 Ra7 a6 Nf6 g5 Nh7 Be3 Qg4 Qd4 Bg7 Ra3 Nd7 Ne2 Nc5 Nf4 Kd7 Nd3 Ne4 e8R Rb7 a7 c3+ Ka1 b2+ Ka2 c2 a8B c1Q Qc3 Qd1 Ba7 Qa4 Be2 f1B Bd1 f2 Bb3 Be2 Rf1 Rf8 Qd4 Rf5 Qf6 Bd1 Qf8 Rc7 Qh8 Rc2 Bb7 Re2 Ba6 Bc3 Bac4 Bd4 Rf8 Qb5 Re1 Rd2 Re3 f1R Rf3 Rg1 Ra6 Qf4 Rc6 Ba6 Rcc8 Rh2 Rce8 Qg4 Ne1 Qb7 Nc3 b1R+ Bc2 Rc1 Nb1 Ba1 Nd3 b3+ Ka3 b2 Ka2 Bb5 Ba4 Rd2 Bc2 Nf2 Ba4 Qb6 Bc2 Qd8 Ba4 Kc8 d7+ Kc7 d6+ Kc6 Bf7 Qb8 d8N+ Kd7 Bc2 Kc8 d7+ Kc7 Nc6 Bc4+ Bb3 Qb4 d8N Qb5 Nd4 Kd7 N8e6 Re1 Nc7 Re7 Nd5 Rde2 Ka3 Bc2 Ba2 Ba4 Bb3 Rg1 Ka2
1r1b4/2Q2Rn1/qNqN2p1/3nBr1B/P5pP/1RBnn3/3K2k1/Nb1R1r1N b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 d4 Kf6 a4 c5 f4 e5 d6 b5 d5 e4 d7 e3 d6 e2 Qd5 b3 Bd2 b4 Rh3 c4 Ra2 b2 Bg2 b3 Re3 c3 Qa5 c2 Bc6 c1N Nh3 Nh6 Nf2 Na6 Na3 b1Q Qc7 b2 Nh1 Be7 Rb3 Rf8 Nc2 Qe8 d8N Nb4 d7 Nd5 Ra1 Rb8 Nb7 Bd8 Nd6 Bb7 Ba5 Nd3+ Kd2 Qf1 Rd1 b1R Na1 e1N Bb4 Nc2 Bc3+ Ne5 Bb5 Nce3 Bc6 Qa6 Bb5 Ke7 f6+ Ke6 f7 Nd3 Bc4 Nhf5 Bb5 Be7 d8B Qec6 Bc4 Bg5 Bdf6 Bc8 Bfe5 Bd8 Rg1 Rf1 Bb5 Rh8 f8R Rh5 Rf7 Bd7 Bc4 Be8 Rf8 Bg6 Rf7 Rf3 Rc1 Rf1 Bb5 Nde7 Rd1 Kd5 Nc8 Ke4 Nd6+ Kf3 Bc4 Ng3 f5 Kg2 f6 Rhf5 Be6 N7d5 Bd7 Rg5 Bf5 Bh7 Bg6 Rgf5 Bh5 Bg6 Re7 Bh7 f7 Bg6 f8N Bh7 Be8 Nh5 Nd7 Rg5 Nf5 Nb2 Nd4 Bb1 Nb6 Nd3 Nb5 Rgf5 Nd6 Nhf6 Bg6 Ne8 Bh5 g6 Rd7 Ng7 Rf7
1k2n1B1/6N1/1Np2R1b/1P1NB3/1B4Rn/b2b1rq1/2BPp1nr/KR1b1Q1q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kd7 b4 h5 g4 e5 g5 a5 f5 c6 b6 e3 f6 e2 b7 Kc7 f7 e4 g6 h3 b5 h4 g7 a4 Ra2 h2 Nh3 a3 Nc3 Qd6 Ng1 h3 Na4 Nd7 b8R Ne7 g8B Bh6 f8B Nf6 Nb6 Bf5 Bb2 Ne8 Be5 Ng6 Ra1 a2 Rb1 a1B Be7 Ng7 Rf8 Nh4 Rf6 Kb8 Bg2 Qc7 d6 Ra3 d7 Ne8 d8N Rf3 Ne6 Bb2 Bb4 Ba3 Ng7 Re3 Kf2 e1N Ne2 Rh7 Bf3 Neg2 Rg1 h1B Nf4 h2 Nfd5 Bg6 Bh5 Rf3+ Ke2 e3 Qf1 Bd3+ Kd1 Qd6 Bg6 Qc7 Bb2 Qg3 Kc1 e2 Bf5 Bc2 Bd3 Bd1 Bc2 Ne3 Nf5 Bg2 Ng7 h1Q Na4 Bh3 Nab6 Bf5 Rg2 Bd3 Rg1 Qgh2 Rg4 Neg2 Be7 Bd6 Be5 Qg3 Kb2 Rh8 Ka1 Rh7 Nc7 Ba3 Ncd5+ Nd6 Bc3 Be3 Re4 Nhf5 Rb2 Rh2 Rg4 Ne8 Rb1 Bh6 Beb4 Nfh4 Be5+
b1bK1R2/1BnRQ3/1p6/rNqN3P/NbRr2p1/Pq2n3/BBk1qR1q/8 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kc5 h4 g5 d4+ Kb6 a3 Ka5 h6 f5 d6 c5 d7 b3 Ke6 Ka4 e5 g4 h7 c4 h5 f3 d5 f2 d6 f4 Qe2 f3 Nh3 b2 Nc3+ Kb3 Rh2 b1Q Na4 c3 Nf4 c2 Bg2 f1B Bb2 c1Q Nd5 f2 Kf7 b6 e6 Ra5 e7 Rb5 e8B Qh4 d8R Nf6 d7 Qc5 Qe7 Kc2 Ra2 Rg8 h8N Ra5 Ke6 Bfa6 Nf7 f1Q Nd6 Bab7 Nb5 Na6 Bf7 Ba8 Bf3+ Qff2 Rg2 Qd2 Rf2 Qh2 Ra1 Qa2 Raf1 Qb3 Rc1+ Kd3 Rc4 Qe2+ Be4+ Kd2 Re8 Rg5 Bg8 Nc7+ Kf7 Rf5 d8R Rf4 Rd7 Kd1 Bf3 Rd4 Be4 Bh6 Bg2 Bd2 Rf8 Bb4 Bf3 Ne4 Bh1 Nc3 Kf6 Kc2 Kf7 Ne6 Ke8 Nc7+ Kd8 Kd3 Nf6 Nd1 Bb7 Ne3 Nd5 Kd2 Bh7 Kd1 Bb1 Kd2 Ba2 Kd1 Bc3 Kc2 Bb2+
1nNB4/4KRb1/1pN2BB1/PnPRpNq1/4RrNr/1kq4n/2r1bQ2/3n4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 d5 h4 e5 a4 g5 c4 b6 f4 g4 a5 g3 h6 b3 f6 Ke6 f7 g2 h7 b2 c5 Qg5 h5 Qe7 h6 Qd7 f5+ Ke7 f6+ Ke6 Qc2 Ne7 Nd2 b1R Ne2 g1N Ne4 Nbc6 Bg5 Bb7 Nf2 Na7 Ng4 Qc6 Rh4 Qc7 Ng3 Rc1 Qf2 Bg7 f8R Rc2 f7 Nh3 Nf5 Qd8 Rd1 Nb5 Bg2 Rb8 Be4 Nc6 Bf6 Ba6 Bg5 Qc7 Bd8 Qe7 Rd2 Qg5 Rd1 Rg8 h8B Rc8 h7 Nb8 Ne7 Rc7 Bg6 Rd7 Nf5 Rc7 Rd2 Rc6 Ke2 d3+ Kf3 d4 Rd1 d2 Ke4 Bf6 Bg7 d3 h8N Rc8 Bh7 Rc7 Ng6 Rh8 Nge7 Rd7 Nc6 Rd4+ Kf3 Kd5 Bg6 Kc4 Kg3 Be7 Bf6 Kb3 Kf3 Rf4+ Ke3 Rf3+ Ke4 Rf4+ Kd5 Rh6 Ke6 Rh7 Rg8 Bf8 Rg7 Rh5 Rh7 Bg7 f8N Rh6 Ke7 Rh5 Re1 d1Q Re4 d2 Rd4 Qc1 Rd5 Bh6 Rf7 d1N Nd7 Qb2 Na7 Qc3 Nc8 Bg7 Nf8 Na3 Ne6 Be2 Ned4+ Ka4 Nc6 Kb3 Ngh6 Nb5 Rg4 Ra4 Rgd4 Rh4 Re4 Rc4 Ng4 Rb4 Re3 Rf4 Re4
4K1b1/1Bqnn1kp/1NR1r2B/N1q2qB1/1q3QP1/1R1Rrr2/PR3bpN/8 b - - 0 1 illegal: No possible last move
N3Rrn1/q1k2P2/r3qB2/2NP2RK/1bR3B1/pBn2r2/2bQ1r1p/N4Bq1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kd7 b4 a5 g4 h5 f4 c5 d4 e5 g6 h4 g5 a4 f5 a3 f6 e3 Kf3 h3 Kg4 c3 b6 c2 b7 e2 g7 e1Q b5 h2 g6 e4 b6 c4 Nd2 c3 Nb3 e3 Ne2 Qe8 Ng3 e2 Rg1 Bd6 Qd2 Qd1 Bb2 c1Q Ne4 c2 Nec5+ Kc6+ Kg5 Nd7 b8R e1R b7 Re6 Bc3 Qb2 Rc1 Rh3 Na1 Rf3 Kh5 Qb6 Rg5 Kc7 Bb2 Ra6 Ra8 Re5 b8N Qa7 Bc3 Nb6 Nbd7 Na4 Nb6 Bh3 Rd8 Qf7 Re8 Re2 Bb2 Qe6 Bc3 Ne7 g8B Bf5 g7 Ref2 Bh7 Bd3 Bf5 Ng8 Bb2 Nc3 Bg4 Nh6 g8B Be4 Bh7 Ng8 d5 Qe1 f7 Qe3 Rb1 c1R Bg6 Re1 Rc1 Bc2 Bgd3 Qd4 Bc4 Re4 Bb3 Qe3 Nb7 Bb4 Nc5 Qe1 Bfc4 Qg1 Bf1 Na2 Bh8 Nc3 Bf6 Rc4 Nca4 Rc6 Nc5 Rd6 Re1 Rd8 Re4 Ra8 Rc4 Kd6 Re7 Rf8 Re8 Kc7 Na8+
7B/2nnpq1R/r3Q2p/4RP2/3k2BN/BNN1b1b1/1R1Pr3/q1nKRbn1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 g4 Kf6 b4 c5 f5 Ke5 b6 a5 g5 h3 b5 a4 d6 c4 d7 e3 b7 e2 b6 a3 g6 a2 g7 c3 Qb3 c2 Nc3 h2 Ba3 c1N Bg2 Nf6 g8N Nd5 Bh3 Bh6 Bg4 Be3 Nf6 Qg8 d8R Kd4 Nfe4 Qf7 Nc5 Nd7 b8B Nc7 b7 Ra6 Qe6 Rg8 Rb1 a1Q Rb5 Rg6 Rh8 h6 Rh7 Rg5 Ba7 Rg6 b8R Rf6 Qc6 Re6 Bb6 Re5 Qe6 Bb7 Rb2 Bg2 Ba7 Bf1 Nb3+ Kd3 Nf3 Re4 Rg1 h1N Bd4 Nf2 Rb5 Nh3 Rh1 Ng1 Nh4 Re5 Rd5 Re4 Bf6+ Kc4 Re5+ Kd3 Na5 Kd4 Bh8 Bh3 Ng2 Bf4 Bh5 Nf3+ Kf2 e1B+ Kf1 Beg3 Bg4 Re2 Rg1 Nh4 Rh1 Be3 Rg1 Rf2+ Ke1 Nf3+ Kd1 Re2 Re1 Ng1 Nh4 Bf1 Nb3+
1RbK4/1r2p3/1B2p1b1/1B1b1PqB/3QqB1R/2NPR1n1/1kN3r1/n1r1N1b1 b - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 Bb7 cxd5 Ba6 h4 gxh4 e5 Bc8 e6 fxe6 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Kd4 g4 h5 b4 a5 f4 c5 d6 a4 b6 h3 b7 c4 d3 a3 b5 c3 b6 a2 d7 h2 Qc2 h4 Be2 h3 Kg6 Bh6 Kf7 Ra7 g5 Nc6 b8N Nf6 g6 Rb7 g7 Na5 g8B Ne4 Na6 Ng3 Qb2 Nb3 Bh5 Bg7 Bh7 Rg8 Be4 Qc7 d8B Qe5 Bc6 Qg5 Nb4 Be5 Qe2 c2 Nc3 Bc7 Rb1 a1Q Bb5 Qa4 Qg4 Na1 Bd2 Bb8 Re1 c1R Re3 Ba7 Bc7 Rg6 Ke8 Rg7 Bd7 Qc6 Kd8 Qe4 Nf3+ Kc5 Rd1 h1B Bb5 h2 Ne1 Kd4 f5 Bf3 Qh4 h1B Nbc2+ Kc5 Nd4 Kb4 Ndc2+ Kb3 Qf4 Bhg2 Qd6 Kb2 Qd4 Rb8 b7 Bb6 Bf7 Bh5 Bfe8 Bc5 Bb6 Bg6 Bf7 Qef4 Bfe8 Bd5 Bf7 Qe4 Bfe8 Ra8 b8R Ra7 Bf7 Rb7 Bfe8 Bh7 Bh5 Rg6 Re2 Rg7 Bf4 Bg6 Re3 Rh7 Bg4 Rh2 Bh5 Rg2 Rd2 Rg1 Rh2 Rg2 Qe5 Bd4 Rh4 Bc5 Re2 Be3 Qd4 Bg1 Re3
4b1qR/N1Np1Q1R/nbN1r1B1/2PnBR2/2Pn2KB/6N1/2qqpr2/1q4k1 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 dxc5 gxh4 Ke2 Kf7 b4 Ke6 f4 Kf5 g3 Kg4 b6 h5 c3 e5 b7 a5 f5 a4 f6 a3 f7 h3 Bh6 e3 Bf4 a2 Qd3 e4 Qd6 h2 Qd1 h4 Bg5 h3 Qb3 Ra6 Na3 Nf6 Bh4 Re6 Nb5 Na6 b8B Bb7 Na7 Bd5 Be5 Rh6 Rd1 a1N c4 Bd6 f8N Nc2 b5 Bc7 b6 Qa8 b7 Bb6 b8N Nd4+ Ke1 e2 Kf2 Rh7 Nbc6 Rf7 Bg2 Qe8 Rf1 Qc8 Ke3 e1Q+ Ne2 Qd2+ Kf2 Qc2 Ke3 Qd8 Rf5 Qd2+ Kf2 Qb8 Qd1 Qc2 Qf1 e3+ Ke1 Qc8 Be4 Qd8 Bd3 Bf3 Be4 Nd5 Qf2 Qg5 Qf1 Qg8 Qf2 Ref6 Ne6 Rg6 Nc7 Re6 Rf6 Rf8 Bg6 Be4 Rf7 Bf3 Rf1 h1Q Rh7 Be4 Qf6 h2 Qf7 Kh3 g4 Kg2 Ng3 e2 g5 Bf3 Bd3 Bh5 g6 Qg1 g7 Qe3 Rf5 Kg1 Be4 h1Q Bd3 Qh8 g8R Qg7 Rgh8 Qg8 Qg7 Be8 Qf7 Qeg5 Be4 Kh2+ Kf2 Qhb1 Bd3 Qgd2 Be4 Nb5 Kf3 Kg1 Qg6 Nd4+ Kg4 Rff6 Bd3 Qf8 Qf7 Qg8+ Rg5 Rf3 Bg6 Rf2 Rf5
4bNN1/B1rpb1KB/n1P1BrpN/2nr2Q1/qP2kB2/3R3R/n7/3nq1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 a5 h4 a4 c4+ Kd6 e4 d3 b4 f6 Kg6 Ke5 b6 a3 h6 a2 h5 d2 h7 f5 c5 f3 c6 f4 h6 f2 b7 f3 Bc4 f1Q Nh3 f2 Qg4 d1R Bf4+ Kd4 e5 Be7 e6 Nf6 Ng5 Qa5 Rg1 Ra7 Nd2 Rf8 h8N Qe1 h7 f1N Nde4 Na6 b8B Nd5 Nhf7 Nc3 h8R Qa4 Nf6 Ne3 Ngh7 Rc7 Ng8 Ke4 Nfh6 Rd5 Qg5 Ned1 Ba7 Rff5 Rc1 a1N Nf8 Na2 Rc3 Nb3 Rd3 Nbc5 Kh7 Rf6 Bb3 Bd6 e7 g6 e8B Be7 Kg7 Nb8 Bf7 Ba6 Be6 Bc4 Nf7 Nba6 Rhh3 Rd4 Nfh6 Bd5 Bg4 Bf7 Bge6 Rd5 Bg4 Bd6 Ne7 Re5 Bc4 Be8 Bg8 Ref5 Bh7 Rd5 Neg8 Be7 Be6
b1N5/1rP2prq/B4K2/n1BRp1n1/R1BN1Pqq/2b1nRn1/k6B/N1Q5 b - - 0 1 illegal: No possible last move
1b4r1/RPQ3qB/2n2Bn1/2Kn1bP1/NR1N1b1B/3pq2k/2Rp3n/1R2Nr2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 h5 b4 e5 g4 a5 f4 d5+ Kd3 h3 c4 h4 c5 e4+ Kd2 a4 c6 e3+ Kd3 a3 b6 a2 c7 e2 b5 e1B b7 h2 b6 h3 Qf3 Qe7 Qe2 Bh6 Qc2 Nc6 b8R Bg3 Nc3 Qg7 Bb2 Nge7 Nf3 Rf8 Ne1 Ng6 Na4 Rg8 Rb1 a1N b7 Bd7 c8R Be6 Rg1 h1Q Qc5 Ra5 Ra8 h2 Ra7 Nc2 Rg2 Ne3 Rc2 Qf3 Bh3 Nd8 Qc7 h1N Bg2 Qf2 Be4 Nc6 Rc4 Bh2 Rb4 Ng3 Ba1 Bd7 Bc3 Ngf1 Ba1 Kf7 f6 Ke6 f7 Bg3 f8B Nh2 f5+ Kf6 Bf3 Kg5 f6 Kh4 f7 Bhf4 Be7+ Kh3 f8N Bf5+ Be4 Rc5 Bh4 Rc1 g5 Qf3 Nc2 Rf1 Ne6 Qf2 Ne1 Qg1 Kd2 d3 Nd4 Qf2+ Kc3 d2 Kd3 Qf3 Ndc2 Qf2 Bf6 Qe2+ Kc3 d4+ Kb3 d3 Nd4 Nd5 Kc4 Qe3 Kc5 Bg4 Qe7 Bb8 Qc7 Bf4 Bf5 Nge5 Bh7 Bf5 Rd8 Ng6 Rd6 Na5 Rdb6 Nc6 Rc4 Be5 R6b4 Bf4 Rc2
1qR2Knn/p2N2R1/6N1/P1r3B1/1b1QB1Rp/1nn2P1b/1r3qBk/3BbN2 b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 g3 Kf7 Ke2 Kf6 Ke3 Kf5 Kd4 b5 a4 h5 a5 h3 g4+ Kf4 c6 h4 Kc5 e5+ d6 e3 d4 e4 g5 b4 c7 h2 g6 b3 f3 Kg3 d5 e2 g7 e1B Nd2 Qe8 Ra4 e3 Nh3 b2 Nf4 Ne7 g8B b1N d7 e2 Kd6 Bf2 d8R e1N Rg1+ Ng2 Rb4 Be6 c8B h1Q Bb7 Rh5 Re4 Qb5 Rc8 Nd7 Qa4 Nc3 Qd4 Kh2 Bh7 Ne3 Rg7 Ng4 Bg2 Rb8 Bg6 Qe1 Nf1+ Kg1 Bf7 Nge5 Ng6 Bh3 Rg4 Nc5 Bc6 Rf5 Bg5 Qe3 Ba8 Be1 Be8 Qb1 Ba4 Qf2 Bd1 Qb4 Qe3 Qf4 Qd4 Rb2 Bc6 Nb3 Ke6 Na1 d6 Nb3 d7 Ng8 d8N Bb4 Nb7 Nf7 Nc5 Nh8 Be4 Qb8 Kd7 Rd5+ Ke8 Rf5 Nd7 Rc5 Ng3 Kh2 Kf8 Qf1 Qd5 Qg1 Qd4 Qf2 Nf1+
5KB1/pq2NN2/R2n1RpQ/bR2B2N/nq4Br/2kPn3/2b1Pbr1/N5n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Ke7 Ke3 Ke6 Kf4 Kd5 b4 Kd4 h4 f5 d3 c5 b6 c3 b5 c4 b7 c2 e6 c3 e7 g6 Kg5 f4 b6 g3 h5 g2 h6 f3 h7 f2 Qd2 Be6 Ra6 Bb3 Bb2 c1B Nh3 Nf6 e8B Qd7 Bf7 Bb4 Kh6 Ne4 Kg7 Nd6 Na3 Ba5 Nf4 Rf8 Rh4 g1N Bh3 f1N h8N Qb5 Rh5 Nd7 b8N Nc5 b7 Na4 Bg4 Qc4 Ba1 Bb2 Rh2 c2 Rf2 c1Q Bd5 Qb1 Nc2+ Ke5 Bf7 Bd4 Bc3 Qc8 Na1 Bc2 Ba2 Rf5 Qc1 Rh5 Bg8 Rh4 Nh5 Qb4 Qh6 Qc7+ Rf7 Qcb6 Nc6+ Kd5+ Ne5 Rf8 b8R Qc6 Rbb6 Qb7 Bb2 Bc5 Nc6 Be3 Be5 Kc5 Rd7 Rf2 Rf7 Rg2 Kf8 Bf2 Rf6 Ne3 Nf7 Kd5 Ne7+ Kc5 Bf4 Kd4 Rb5 Kc3 Be5+
3B1N2/p3Pk1b/1bBq4/2Qrn1Rq/r5B1/2b1p3/n1R1B1KP/Rq2b1NN b - - 0 1 illegal: No proof kernel
4B1Rn/nk4b1/QN2Pq2/1NB1r1rR/n1pP1R1R/5b2/2p1N1r1/2n2rBK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kg2 c5 d4 Kc7 h4 g5 e4 f5 b4 a5 h6 f3+ Kh2 a4 b6+ Kb7 b5 c3 h5 f2 e5 a3 e6 f4 h7 g4 h6 c4 Nf3 c2 Qe1 a2 Be3 Qf6 Bg2 f1R Ng1+ f3 Na3 Ne7 Qa5 Rf2 Ne2 Bg7 Raf1 Rg8 h8R a1N h7 g3+ Kg1 Ra7 Rh5 Nbc6 Kh1 Nb3 Rh4 Nc1 Rh5 Re8 Rg8 Ng6 h8R Bd7 R8h6 Nh8 Rh7 Raa8 Rh4 Na7 R7h5 Kb8 b7 Bc6 Qb4 Kc7 b8N Kb7 b6 Rd8 Qa4 Rd5 Nb5 Rg5 Nd7 Rc8 Qa1 Bd5 Qa5 Rc5 Bf4 Be4 Bd6 Rce5 Bc5 Bc6 Nec3 Rd2 Ne2 f2 Be4 Nd3 Bg2 Nb2 Bd5 Na4 Be4 Rd5 Bg6 Rge5 Be8 g2+ Kh2 g1N Kh1 Nh3 Rg1 Rg5 Rgg4 Ng1 Rf4 f1R Qb4 Ka6 b7 Rge5 b8B Kb7 Qa3 Rg5 Nb6 Rde5+ Kh2 Bf3 Bbd6 Rg2+ Kh1 Rd3 Qc3 Rde3 Qa5 Reg5 Rf5 Re4 Bh2 Re3 Rff4 Ree5 Nc1 Ne2+ Bg1 Nec3 Ne2 Na2 Rh3 Nc1 Rh2 Qe7 R2h4 Qf6 Qa6+
QB1R3b/Bp3n1B/1P3prq/2r1R3/1k3NbP/2br1n2/1NrR4/b2KRN2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 exf4 c4 d5 cxd5 Ra6 b5 Ra7 Qa4 Ra8 Qb4 axb4 e4 Kd7 a4 Kd6 h4 Kc5 b6 g5 d3 f6 e5 b3 h6 f3 e6 f2+ Kd1 b2 e7 g4 e8R g3 d6 g2 d7 Nc6 d4+ Kb4 h7 Nh6 d5 Ne5 a5 c5 d6 c4 a6 c3 a7 Rg8 h8N Nhf7 Nd2 b1R Ng6 Rb3 Bd3 Nf3 Ra2 Bg7 Re5 Qf8 d8B Bg4 d7 Rc8 a8Q Bh8 Nh3 g1B Nhf4 Qh6 Nf1 Rc5 Bc7 Rc8 d8R c2+ Ke2 Bh2 Bb8 Ra3 Be4 Rd3 Ba7 Bg1 Be3 c1B Rd2 Bb2 Kd1 Rc2 Bd4 Bc3 Bc5+ Ka4 Bd6 Rc5 Bdb8 Kb4 Re7 Bh2 Ne5 Ba1 Nc4 Bg3 Ng6 Bge5 Nf4 Beb2 Bh7 Bc3 Ng3 f1R+ Re1 Bh5 Nb2 Rg1 Nf1 Rg6 Rh2 Bg4 Rhe2 Be6 Re3 Bg4 Re5
3K4/2r1P1B1/Nr1N1r1q/2rq4/RnNpnp1r/2RP4/Rb1q4/1B1k1QRB b - - 0 1 illegal: No possible last move, all moves rejected
2q1Q1Nb/1bp2B2/qBP1n2b/1knKp2b/8/2N1qN1R/RP3NBb/4Rr2 b - - 0 1 legal: proof: g4 d5 h4 f5 a4 fxg4 e4 b5 axb5 dxe4 Ke2 a5 Qe1 g5 Qd1 g3 Ke1 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bf5 Qf3 Be6 Qd1 Bc8 Ke2 Kd7 Ke3 e5 f4 h5 d4 h4 c4 h3 d5 g2 d6 g3 c5 h2 b6 Kc6 d7 a4 f5 a3 g6 a2 b7 Rh7 f6 Rf7 g7 Na6 b8R Ne7 g8B Ng6 Ra8 Bb7 Qh5 Bg7 Nc3 Bh8 Nh3 g1B+ Nf2 Nf4 Bg2 Ne6 Qg6 Rf8 f7 Qc8 Rb1 a1Q d8N+ Kd7 Nc6 Qa3 Bf1 g2 Nd4 Qa4 Nf3 Kc6 Bd2 Qb5 Re1 Qa4 Ne2 Kb5 c6 Nac5 Ba5 Qa2 Bb6 Qa6 Kd2 e3+ Kc3 Rd8 f8N Rd1 Bf7 Ra1 Nc1+ e2 Na2 Rd1 Nh7 Rb1 Ne4 Be3 Nhf6 g1B Bg2 Bh6 Qg8 Ra1 Qe8 Rd1 Ng8 Ra1 Rd1 Rb1 Nf2 e1Q+ Rd2 Qe3+ Rd3 Rf1 Ra7 Ka4 Ra8 Qa7 Kc4 Qa6+ Kd5 Kb5 Nd1 Bf2 Rg1 Bg3 Nf2 h1B Ra7 Ra1 Re1 Bh2 Bf1 Bg2 Ra8 Bh3 Bg2 Bg4 Ra7 Bh5 Nc3+ Kb4 Rh1 Rf1 Rd1 B2f4 Rh3 Bh2 Ra1 Qb5 R7a2 Qa6 Ne2 Kb5 Rb1 Qaa3 Re1 Qa6 Nc3+
RbK2R1B/B1n2bq1/1p1bRN2/1P2r3/1Pp1bq2/qN3NQ1/2b1Bn2/2Bk4 b - - 0 1 legal: proof: b4 d5 a4 a5 h4 g5 c3 gxh4 f4 e5 c4 exf4 cxd5 Ra6 Nf3 Rb6 Ng1 Rb5 axb5 Bc5 Rh3 Bd6 Rh1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 c5+ Kc4 Ke5 e4 h5 g4 a4 g5 f3 d6 Kf4 Kd5 b6 d7 c4 Ke6 f2 g6 h3 e5 h2 g7 h4 Na3 h3 Rb1 Qg5 Bg2 f1Q Qe2 Na6 Qd1 Qd3 Qb3 Bd6 Bf3 Nh6 g8R Qg7 Nc2 a3 Na1 a2 Rf8 Ng4 Be2 Rh5 Nf3 Nf2 Re1 h1B Qc3 h2 Nb3 Bb7 d8B a1B Bc7 Be4 Bb8 Qe3 d4 Bc2 d5 Bb2 Ng1 Bhe4 Nf3 h1B Ra1 Kg3 Qd3 f4 Ba7 Bg6 Ra2 Bf7+ Kd7 Nc7 e6 Re5 e7 Bd4 e8N Kg2 Nh2 f3 Kc8 Bc3 Nf6 Bd2 Qh7 Qc3 Ra6 Bf4 Qd3 Qa1 Qe3 Qa3 Qc3 Nd3 Ra5 f2 Nf3 f1Q Ra4 Kf2 Ra6 Bc5 d6 Bg2 d7 Bd6 d8B Bh2 Nfd2 Ke3 Ra4 Qf4 Ra6 Ba8 Nf3+ Kf2 Bb8 Be4 Ra8 Nb2 Ba7 Nd1 Rh1 Bg3 Rh6 Bh2 Ne8 Bg3 Re6 Bh2 Bf6 Bg3 Nfd2 Ke1 Qd3 Nf2 Qe3 Qgg5 Bh8 Qg7 Nf6 Bh2 Bd3+ Kd1 Qg3 Qh4 Bf1 Qf4 Nf3 Na6 Qg5 Bb8 Qg2 Qe3 Nd5 Nc7 Re7 Rh5 Nf6 Bd6 Qg3 Re5 Re6 Qf4 Be2+
K7/n1bR1p2/3qb3/q2N1PBB/2rqN2p/PR1bN1b1/1b1r3R/k1R1Q2B b - - 0 1 illegal: No possible last move, all moves rejected
b3kq1B/b2R4/NN2K1N1/b3p1rR/n1Bp3P/Q4B2/r1q1P1q1/2rR1rB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 Nc6 f5 cxd4 Qd2 e5 Qd3 Na5 Qd1 Nb7 Qd2 Nc5 Qd1 Ne6 fxe6 Ba6 Bd2 Bb7 Bc1 Bc8 Kf2 a5 Kg3 g5 c4 d5 b4 f5 c5 d3 c6 d2 c7 a4 e7 a3 b6 a2 b5 Qd7 b7 Qd8 b8B Ra7 b6 Nf6 b7 Rh5 Qb3 d1Q Na3 Qc2 Bg2 Nd7 Bf3 Nc5 Nc4 Na4 Qa3 Bd7 c8B Bc6 Rb1 a1R Be6 Ra8 Nh3 f4+ Kf2 Ra7 Nb6 g3+ Kg2 Ra8 Ba7 g4 b8N Rg5 Na6 Rc8 Be3 Ba8 Rbd1 Ra2 Bg1 Rc5 Bb8 Rc3 Bc7 Qb8 Bd8 Rc5 Kf1 g2+ Kf2 Qc8 Bf5 Bh6 Bd3 Qf5 Bc4 Qf8 Be4 f3 Ke3 g3 Nf4 f2 Ng6 f1R Bf3 Kf7 e8R Rc7 Bf2 g1B Bf6 g2 Rd8 Rc8 Rd7+ Ke8 Bg4 Rc5 Kf3 Rc8 Kg3 Rc5 Bh8 Rc8 Bd4 Be3 Kh4 g1Q Bf3 Qg2 Bc5 Bd2 Bg1 Ba5 h3 Rg4+ Kh5 Be3 Rh2 Bc5 Rh1 d4 Rh2 Qf7 Kh6 Qf4+ Kg7 Qh6+ Kf6 Rg5 Ke6 Qf8 Nd5 Ba7 Nb6 Qg3 h4 Qf2 Rg2 Rc5 Rg4 Qg2 Rf4 Rb5 Rff7 Rb1 Rh7 Rc1 Rh5
n4nQ1/RbnR2q1/NpB4q/Nk3P2/1q1r1R1N/1P2K1p1/1RrB2B1/n4r2 b - - 0 1 illegal: No extended proof kernel
2B1R1b1/n5n1/nK2p1k1/Nn1r4/NBN2QpP/1nb1n3/R3Pr1N/n4RB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 cxd4 f5 e6 f6 Qe7 Be3 Kd8 fxe7+ Kc7 Bc1 Kd6 Kd2 Ke5 Kd3 Kf5 Kc4 d5+ Kc5 a5 h4 g5 b4 g3 c4 g4 b6 a4 b7 a3 b5 g2 b6 d3 Kb5 d4 e8N a2 c5 d2 c6 d3 c7 Bg7 Bb2 Bd7+ Kc5 Ne7 c8R Ra5+ Kd6 Na6 b8B Bc3 b7 Nc6 Nc7 Kg6 Nb5 f5 Qc1 d1N Qd2 f4 Nf3 g1N Nfd4 f3 Qf4 d2 Re8 f2 N1a3 Nf3 Nc4 Na7 Bg2 f1N Ba3 Nfe3 Bb4 Rf8 Rf1 Bc6 Bc7 Be4 b8N Nf5+ Kd7 Ng7 Bb6 Bc2 Nbc6 Ne3 Kd6 d1N B6c5 Ra4 N6a5 Nd2 Nf3 Nb3 Nh2 Rf5 Bb7 Rd5+ Ke7 Ra3 Bc8 Be4 Rb1 a1N Rb2 Bd2 Ra2 Nc3 Nbd6 Bc2 Kd8 Ncb5 Nb6 Bc3 Na4 Nc4 Bg1 Ne3 Nc5 Ra4 Ba3 Rc4 Na4 Rc7 Bb4 Rf7 Qe5 Rf2 Qf4 Kh5 Kd7 Bh7 Kd8 Kg6 Kd7 Rc5 Ndc4 Bg8 Kd8 Nd6 Kd7 Rd5 Kd8 Nac5 Kc7 Ndb5+ Kb6 Na6 Rb2 Nd2 Rc2 Ndb3 Ra2
1R1r1nBK/2ppb2Q/P3r1B1/BN2r3/RN3n2/2P1Rr2/R1b2k2/1b1r1N1r b - - 0 1 legal: proof: g4 a5 d4 g5 h4 e5 dxe5 f5 b4 axb4 Bb2 fxg4 Bc1 g3 Bf4 g4 Bc1 Qg5 hxg5 Be7 Qd4 Bc5 Qd1 Bf8 Kd2 Kf7 Kd3 Kg6 Kd4 Kf5 e4+ Kg6 f4 h5 a4 b5 e6 g2 Ke5 b3 a5 g3 e7 h4 e8N h3 a6 b4 Nd2 h2 Nd6 b2 Ngf3 Kh5 f5 Kg4 f6 g1R f7 b1R g6 b3 g7 b2 Nb5 g2 Nfd4+ Kg3 Ra4 Rh3 Bd3 Re1 Nc6 g1R Qh5 Ne7 Kf6 Ng6 g8B Nf4 e5 Bb7 e6 Kf2 e7 Rg5 e8R Rf3 Qh7 Re7 Rd1 h1R Bg6 Re4 Re6 Be7+ Kg7 Ree3 f8R Rgh5 Na5 Be4 Nf1 Nc6 Bd2 Nd8 Kh8 Ra1 Re5 Nde6 Nc6 Re1 Rd8 Nf8 Ba5 Rb8 c3 Bc2 Nb4 Re4 Rc5 Re6 Re5 Rc1 Re3 Rhe5 Re8 Ra8 Rb8 Rb1 Rb7 Rd8 Rde1 Rd1 Rb6 Rdd6 Rea1 b1B R1a2 Rd1 Rb8
1R6/b3rBqN/1R1pRrBr/bp1Bb3/rP1P1r2/2N2b2/3N1K1B/1r3Q1k b - - 0 1 legal: proof: f4 e5 a4 exf4 h4 g5 a5 gxh4 c3 Nc6 a6 b5 c4 Na5 c5 Nb7 axb7 Nf6 Qb3 Nd5 Qd1 Nb6 cxb6 Qg5 Qa4 Qe7 Qd1 Qd8 b8R Ke7 e4 Kd6 g4 Ke5 d3 c5 g5 f5 b3 h5 b7 a5 g6 h3 g7 h2 g8B f3 Nd2 Kf4 e5 Kg3 e6 h4 e7 f2+ Ke2 h3 e8B a4 Ndf3 c4 Bb2 f4 Bg2 f1R Ra3 c3 Ne5 f3+ Ke3 c2 Bc4 c1B+ Qd2 f2 Bc3 Rh6 Bc6 Qe7 Nf3 Kg2 Be6 Qg7 Ng6 Bb4 Be5 d6 Ne7 Ba5 B6f7 Bg4 b4 Rf6 Ra1 a3 Nd5 a2 Nc3 Ra6 Bcd5 Re1+ Ne2 Bb2 Qc1 f1R Nd2+ Bf3 Qc4 Rb1 Nc3 Rf2 Re1 h1R Re2 Rhe1 Bh2 Kh1 Bg6 Rf4 Bef7 Ra8 Nce4 Be5 Nc3 Rbd1 Rc1 a1B Rc2 Rb1 Ra2 Bc7 Ra6 Ba5 Rb6 Ra7 Rh8 Bb2 b8N Ra8 Nd7 Bc1 Bg3 h2 Rhb8 Ra7 Nf6 Re7 Ra6 Ra1 Rab6 Ra4 Nh7 Bb2 Qd4 Rb1 Qc4 Rf6 Nd1 Bg2 Ra6 Kg1 Ng5 h1R Bf4 Rh6 Nh7 Kh1 Bh2 R2f4 Qc1 Bf3 Kf2 Bec3 Re6 Be5 Rc6 Re4 Qc4 Re3 Ra6 Bbd4 Nc3 Ba7 d4 Re4 Rab6 Ref4 Qf1+
1Q2Nrqn/nBR5/b1q2b1n/3P3R/1B1p2k1/5Np1/1PB1p1NR/K3b1rN b - - 0 1 illegal: No proof kernel
1K2R1qN/3NNkb1/1n2r3/RPB5/3prpb1/P3B1q1/p2nQR2/1rqN3B b - - 0 1 illegal: No proof kernel
R4r2/BNk5/nRRbpN2/1PB1bbK1/8/pN3qP1/r2BQpn1/1Bqr4 b - - 0 1 illegal: No possible last move
3BQr2/qN4n1/3P2K1/Pq1N1rpB/p1n4R/1kN1pbB1/qb1r4/3R1RN1 b - - 0 1 illegal: No proof kernel
b3NB2/5q2/RQp1B1rp/3q2PK/4RP2/3p1R1b/3nNBNb/1nkr1Nq1 b - - 0 1 illegal: No proof kernel
2rR3k/2Rn1N2/1P2rp2/nqqbN3/1rpQ2n1/1B3N1B/K2bpP2/2RB3B b - - 0 1 illegal: No possible last move
Nnq1n1Nk/2R2prb/2b1B3/np1BP3/3b2Q1/B1R4K/RP1R2Np/q3r3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 a5 exf4 Kf2 Qd6 Ke1 Qb6 axb6 Bc5 Qc2 Be7 Qd1 Bf8 Kf2 c5 e4 a5 d4 h5 g4 c4 Kg2 c3 d6 f3+ Kh3 f2 b7 a4 e5 c2 d7+ Ke7 d8N a3 d5 a2 d6+ Ke8 d7+ Ke7 g5 Ra7 g6 Nf6 g7 Rh7 g8B Ra3+ Be3 c1Q Nf3 Qc4 Nbd2 Ne8 Bg2 f1Q Ne6 Rg7 d8R Qc7 Bg1 Re3 Bh7 Re1 Ne4 Qc6 Rc1 a1N Rd2 Nb3 Rc3 Na5 Nf6 Bd7 Bb1 Qc8 Bf5 Bc6 Nc7 Be4 Be6 Bh7 Bd4 Qg1 Na8 Qf1 Kh2 h3 Qe2 h4 Ng8+ Kd8 Qe4 Bc5 Qg4 Ba7 Bg1+ Bd4 Bf2 Qd3 Rf1 Qb1 Rg1 Qa1 Bh1 Rb1 Ne1 Rc1 Ng2 Re1 Nf6 Ke7 Ng8+ Kf8 Rf1 Re2 Rfc1 Re1 Rc7 Rg5 R1c5 Kg7 Rc3 Kh8 Be3 Rg7 Bg5 Nd7 Be7 Nb8 Ba3 Nc4 Nf4 Na5 Bhd5 Bg1+ Kh1 h2 Kg2 h1B+ Kh3 Bc5 Ng2 Bd4 Kh2 h3 Kg3 Na6 b8R h2 Rbb7 Nb8 Ra7 Bf5 Kh3 Bh7 Bd6 Nb7 Ra2 Na5 Nf4 B1e4 Ng2 Bf3 Ba3 Bfe4 Bb3 Bc6 Bbd5
2qR2NB/NR1n1p2/3q1P2/rbRb2k1/nn1r2P1/B4p2/1p1Qr3/NKRB4 b - - 0 1 illegal: No proof kernel
3N2n1/2p3Br/3BNpkR/n1rR2P1/3qRP2/qb3qBK/1p1N4/Rr1Q2b1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 Ra5 Rh5 Ra3 Rh1 Ra8 d4 Kd7 e3 e6 d6 Ra5 d5 Ra8 Bc4 Ke8 d7+ Ke7 Bb3 Kd6 Bc4 Kc5 d6 Kc6 Bd5+ exd5 Kf1 b5 a4 h5 f4 h4 g4 d4 Kg2 Kd5 g6 Ke6 g7 Kf6 e4 d3 e5+ Kg6 e6 d2 e7 b3 e8R b2 a5 b4 a6 b3 a7 Nh6 g8N Na6 Nf3 Nb4 Ng5 Qe7 d8B Rh7 d7 Nc6 Kh3 Na5 Ne6 Qa3 Bf6 Bc5 d8B Bg1 Bg7 f6 g5 Bb7 Be7 Bd5 Bd6 Rb8 a8R Rb5 Rad8 Rc5 Qg4 d1Q Bd2 Bc4 Be1 Qd4 Nd2 b1R Qd1 b2+ Bg3 Bb3 Rh2 Nf5 Rd7 Ne7 Nh6 Ng8 Ree7 Rh8 Nf7 Rh7 Kg4 h3 Rh1 h2 Nfd8 Nh6+ Kh3 Bf2 Re1 Bg1 Re4 h1Q+ Bh2 Qf3+ Bg3 Rf5 Re8 Rc5 Rh8 Qaa4 Be5 Qab4 Rd5 Qa3 Bd6 Ng8+ Bh6 Rd7 Bhf8 Rg7 Rh5 Rh7 Bg7 Qdb4 Rh4 Qd4 Rh6+
2Bn4/N1pKQP2/R3B3/3Nq2p/rRBR4/1q1NqnrP/1bkb1p1r/4B3 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 exf4 Bf1 f3 Nc3 f4 Nb1 Bf5 gxf5 Kf7 Kf2 Ke7 Ke1 Ke8 Kf2 Kf7 e4 Kf6 d4 b5 a4 h5 e5+ Kg5 a5 g6 a6 b3 a7 b2 d6 b4 f6 Kf5 d7 Ke4 e6 b3 h3 g5 f7 g4 d5 Qe7 d8R Nh6 d6 Bg7 d7 Nc6 Bc4 Rg8 Ne2 Nf5 Qd6 Nh4 Ra6 Qe8 Rb8 Nd8 e7 Bh8 Rd1 g3+ Kg1 g2 Kh2 f2 Rb4 f1Q Bd2 f3 Be1 f2 Nc1 Rg3 Nd3 Qe2 Nc3+ Ke3 Rd2 b1R Nd5+ Kd4 Qe6 b2 Qf6+ Qe5 Qe6 Qf8 e8B Qh6 Qe7 Qhe3 Rd1 Ra1 Rd2 b1Q Rd1 Nc6 d8N Qb3 Bd7 Ke4 Be6 g1B+ Kh1 Nf3 Rd2 Rb8 a8B Bh2 Bb7 Ra4 Bbc8 Rg2 Rd1 Bf4 Rd2 Na5 Nc6 Nb7 Na7 Nd8 Bed7 Rb6 Bg4 Rg6 Bge6 R2g3 Rd1 Nd2 Kh2 Kd4 Nb6 Kc3 Nd5+ Kc2 Nc5 Nb1 Rd4 Nd2 Nd3 Nf3+ Kh1 R3g4 Re4 Qg7 Bed7 Qb6 Bf5 Bd2 Rf4 Ng1 Kh2 Qe3 Bfd7 R4g5 Rg4 Nf3+ Kg3 Qg8 Bf5 Bb2 Bfd7 Qh8 Bf5 Ng1+ Kh4 Rg8 Rd4 Rg2 Bfd7 R8g3 Bg4 Bdc3 Bgf5 Rh2 Bg4 Qf3 Kg5 Qe3+ Kf5 Nf3 Qe5 Nb7 Ke6 Bd2 Kd7 Nd8 Qe7 Qhe5 Be6
B1r1B3/p1nRn2q/3Q2R1/1qN2pNP/B1R2p2/B2k1Kbb/1P2r2r/2b2N2 b - - 0 1 illegal: No possible last move
2k1bnRN/pp4K1/1r1n1rN1/B3rb2/2q3qp/1P2B2P/nNQR4/NB3R2 b - - 0 1 legal: proof: c4 e5 g3 d5 cxd5 e4 Qb3 e3 Kd1 exf2 Kc2 Na6 Kd3 Qd7 Qd1 Nb8 Kc2 Qd8 a4 f5 a5 f4 a6 Nxa6 Na3 f3 Ra2 Bd6 Nb1 Bf4 gxf4 Nb4+ Kb3 Rb8 Ra1 Na2 Kc2 Ra8 Kd3 Kd7 Ke4 g5 Ke5 h5 d4 c5 e4 g4 b3 h4 f5 c4 d6 c3 d5 c2 f6 g3 h3 g2 f7 Nf6 f8N+ Ke8 d7+ Ke7 d6+ Kf7 Na3 Nh7 Ne2 g1Q Nc3 Qg8 Bd3 f1B Rh2 f2 Na4 Be2 Ng6 f1N Be3 c1R Qc2 Nf8 Nb2 Qc7 d8B Ke8 Kf6 Kd7 e5 Qcc4 Ba5 Bh5 Rd2 Ng3 Be4 Qge6+ Kg7 Re1 Bd3 Re2 Rf1 Qeg4 Be4 Rh6 e6+ Ke8 e7 Kd7 Bd3 Ne4 e8R Rb8 Na4 Rf2 Nb2 Rf6 Rd8+ Kc6 d7 Nd6 Re8 Ra8 d8N+ Kd7 Nf7 Rb8 Bc3 Kc7 Be4 Bf5 Nh8 Rd8 Ba5+ Kc8 Re5 Re8 Rc5+ Kd7 Rc8 Re5 Bd3 Nh7 Rg8 Nf8 Qd1 Kc8 Nc2 Qe6 Na1 Qgc4 Nf4 Be8 Nfg6 Qg4 Bb1 Qec4 Qc2 Nb5 Bf4 Rb6 Bg5 Nd6 Nf4 Rhe6 Nfg6 Rf6 Be3
N1kb2r1/R1R1bR2/p3Q1B1/Bp1PN2N/1q1n4/3P1NKb/np1b1r1B/7b b - - 0 1 illegal: No proof kernel
1QNRK3/q3p3/1P2rB2/R1nr1B1N/2krn1b1/8/ppRbP1rN/Br5B b - - 0 1 illegal: No possible last move, all moves rejected
2bR3r/2Kpp1NB/3rQ3/P1P2n1k/1B1N1bp1/4R2n/bN2B1Rb/2qN3b b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Kd3 b5 Kd4 g5 a4 b3 c4 g3 f4 g4 h4 b4 h5 g2 h6 b2 h7 b3 a5 Ra7 c6 Na6 f6 Kg6 f5+ Kf7 c7 Rb7 Nf3 Rb5 Bd2 Rc5 Ne5+ Ke8 Nc3 b1B Rg1 b2 Ra3 Bh6 f7+ Kf8 Qe2 Kg7 f8R Nb4 Nd1 Na2 Re3 Rb5 Nd3 Rb7 Kc5 Rb3 f6+ Kg6 f7 Ba6 c8B Rb8 Bb7 Kh5 Be4 Nc1 Bb4 Rb6 Qe1 Bc8 Be2 Rg6 Re8 Rf6 f8N Ba2 Ne6 b1B Nd4 Rd6 N3b2 Qc7+ Kb5 Bc2 Rd8 Bf4 c5 Nh6 Bf5 Nd3 Be4 Nf2 B4d3 Re8 h8N Nf5 Nf7 Rh8 Be4 Nh3 B4d3 Rc6 Nd6 Ra6 Ne8 Rd6 Be4 Bcb3 B4d3 Bd5 Bb1 Bdb7 Be4 Qb8 B4d3 Qa8 Bc2 Bc6+ Kb6 Qa6+ Kc7 Qc4 Bcd3 Qc1 Bb1 Ng3 Bh7 Nf5 Qc3 Ba8 Qb3 Bab7 Qe6 Ba8 Rh1 g1B Rh2 Bh1 Rg2 Bgh2 Ng7+
1nN2RBK/1R1NqB2/1Pp5/3Npn2/5rn1/2bbk3/Rbp1PbrN/B4Q2 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 d5 axb5 dxc4 g4 g5 fxg5 hxg4 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 f5 h4 a5 d4+ Kb4 b6 c3 d5 Kc4 b4 c2 d6 g3 b5 g2 d7 c6 h5 e6 h6 a4 g6 f4 h7 f3 g7 a3 b7 a2 b6 f2 Nc3 Qe8 d8R Kc5 Bb2 Ne7 Kf6 e5 g8B Bg4 Nd5 Nf5 Nf3 g1B Bh3 f1N Nh2 N1e3 Qf1 Bf2 Bf7 Rg8 h8N Qd7 Ng6 Ra4 Nge7 Rf4 Nc8 Bf3 Rg1 Be4 Rg7 Bd3 Re8 Bd6 Rf8 Ng4+ Kg6 Qe7 Kh7 Kc4 Bg2 Ba3 Be4 Na6 b8N Kc5 Bc3 Bb2 Nd7+ Kc4 Bd4 Nb8 Bf3 Nge3 B3h5 Ng4 Be6 Bc3 Rgf7 Rg6 Kh8 Bb2 Rh7 Rg7 Bhf7 Bc3 Rb1 a1B Rb2 Rg5 Ra2 Bab2 Bg8 Rg6 Bef7 Rg7 Be3 Rg6 Bc1 Kd4 Bd2 Ngh6 Be1 Rg2 Bd2 Ng4 Bc1 Ba3 Bb2 Ke4 Ba1 Bab2 Rg7 Bce1 Be8 Qd8 Nc5+ Kd4 Rh7 Bec3 Rb7 Qe7 Nd7 Ke4 Bef7 Kd4 Nc7 Ke3 Nd5+
1r1qB3/R3r1n1/pB1R3K/3Nn1R1/Q1r3P1/bPN3b1/1p1B1Nbp/k1Br4 b - - 0 1 illegal: No proof kernel
Q6R/n1B1qp1p/b4Pn1/4nB1p/1r1rP3/B3KN1b/bN5R/RNB3kb b - - 0 1 illegal: No proof kernel
7r/r1NKpbb1/q1n4n/bk2R3/1Nn4P/pQ4p1/BbNBPR1N/1B4R1 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h5 g4 hxg4 Qd4 g3 Qg4 fxg4 Kd2 g5 Ke3 d5 Kd4 Kd7 Ke5 a5 b4 g2 f4 g3 h4 d4 c4 g4 f5 d3 f6 a4 b6 Kc6 b5+ Kb7 f7 d2 Na3 d1N Bd2 Ra6 c6+ Ka8 c7 Kb7 c5 Nf2 c6+ Ka8 b7+ Ka7 Nc2 Kb6 Nf3 g1B Bh3 g2 Nh2 g3 Bf5 Bh6 f8R Kc5 b6 Nd7+ Ke6 Kb5 b8N Qe8 b7 Ra7 Na6 Ng4 b8Q+ Bb6 Nab4 Ne3 Rhg1 Bg7 Bh7 Ba6 c8B Nc4 c7 Nde5 Rf2 Nh6 Bd7+ Nc6 c8N Bb7 Rad1 Bbd4 Nb6 a3 N6d5 Bb2 Bc8 Qg6+ Kd7 N6a5 Rdf1 Qa6 Rf5 Nc6 Re5 Kc5 Rf2 Kb5 Kc7 N6a5 Be6 Nc6 Rgf1 g1B Kd7 Qb6 Qg8 Qa6 Qf7 Bc1 Qf3 Bb2 Qb3 Qb6 Nf4+ Qc5 Bh3 Ne3 Qc3 Ka4 Rf3 Na5 Nd4 Qb6 Be6 Qa6 Ba2 Nec4 Bhb1 Be3 Ndc2 Bb6 R3f2 Bd8 Re3 Kb5 Rg1 Bc7 Qd3 Bd5 Qb3 Bf7 Nfd5 Nc6 Re5 Ba5+ Nc7+
R1B3B1/r1N1p2r/NPp1RbN1/1n1bbrQ1/R1N5/2P2qb1/n1kp4/5BK1 b - - 0 1 illegal: No proof kernel
N1b1BB1n/2nPQ3/1pp1N3/nb2RN2/RqP5/1B3nrR/5pr1/Rk3Kb1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 b4 axb4 e4 e5 fxe5 dxe4 d4 Ke7 a4 Ke6 h4 Kf5 d5 g5 h6 b6 c3 e3 d6 Ke4 h7 f5 e6 b3 a5 f4 d7 b2 h5 e2 h6 g4 a6 g3 a7 c6 e7 f3 e8B g2 Rh3 Ne7 Qb3 Kd3 Rh2 Ng6 Nh3 g1N Qa2 Kc2 Nf4 Bc5 Qa3 Na6 Rh5 Qe7 Re5 Rg8 h8R Nc7 Nd2 b1B h7 Be3 Nb3 Qb4 Bd2 Rg7 Rf8 Nh8 Ne6 Rg2 Rf4 Rb8 a8N Ba2 Nc1 Bc4 Nb3 Bb5 Rfe4 Bd4 Bh6 Rg3 Bf8 Rg2 Ra2+ Kb1 Rg4 Bc5 Nbd4 Rg3 Kf2 e1N Bc4 Nc2 Kf1 Na1 Nf5 Nb3 Rf4 Na5 Rg4 Ne2 Bb3 Bg1 c4 f2 Rg7 Qd2 Qe7 Qb4 Ra4 Nd4 Rg5 Rg2 Rh5 Nf3 Rh1 Nf7 h8R Rg3 R8h5 Nh8 R5h3 Rg2 Qg7 Bb7 Be7 Kc1 Bg6 Rg8 Be8 Bc8 Bf8 Bh2 Qe7 R8g3 Ke2+ Kb2 Rha1 Bg1 R1a3 Kc1 Kf1 Kb1 Ra1+
4r3/bpNb2Nn/1Q1R2bR/1PpK4/6B1/B2PBrN1/kpbn4/1rqR2B1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 Ke2 Kf7 Ke3 e5 Ke4 h5 f4 h3 g4 c6 a4 h4 d3 b3 a5 b2 g5 h2 d6 h3 d7 Ke7 a6 Kd6 g6 Kc5 f6 Kb4 f5 Kb3 f7 Qg5 d8Q Bc5 f8B Ba7 g7 Nd7 f6 Nb6 f7 Bd7 Be2 Nc4 Qb6 Re8 Ba3 c5 f8B Rh7 Nc3 Nd2+ Kd5 Qe3 Bh5 e4 Nce2 Qh6 Rb1 e3 Nf4 e2 Bd6 e1R Bg4 Ka2 Nge2 Rh8 Ne6 Nf6+ Ke5 Ref8 g8R Nh7 Kd5 Rf3 Rg6 Re8 Ng7 Qe3 Rh6 Ref1 Rg1 h1B Ng3 h2 Be5 Bg2 Bd4 h1B Rd6 Rd1 Rf1 Qf4 Bg1 Rde1 Rf2 Bf1 Rh2 Be2 Rh4 Bd1 Rh5 Bc2 Rhh6 Nf1 Bce3 Nd2 Rc1 Bg2 Rd1 Bh3 Bh5 Bhf5 Bg4 Bg6 N7f5 Bb8 a7 Ref1 a8N Ba7 Nc7 Qg5 Re1 Qf4 Re2 Rb1 Re1 Ka1 Ng7 Ka2 Bd4 Qe3 Rf1 Qe1 Bde3 Qc1 Rd1
RKb3b1/rp2p3/2Bpn3/1BQN1NB1/1qnb2R1/5r1P/r1P3rk/3RN1B1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 f4+ Ke4 a4 g3 a5 g4 c6 b3 a6 d6 a7 b2 c7 g2 Kb6 g3 f6 Nc6 f7 Bd7 f5 Nb8 h3 Nc6 f6 Nh6 Be3 Bg7 f8B Na5 f7 Bc8 Qh5 Bd4+ Qc5 Nf5 Bfh6 Ng7 f8N Ne6 Nf3 g1R Bb5 g2 Ra4 Rf1 Bhg5 g1R Ng6 Rg2 Ne1 Rf3 Nh4 Qf8 Bg1 Qf4 Nf5 Qd2 Bf6 Kf4 Nc3 b1B Rb4 Ba2 Nd5+ Ke4 Rc4 Qb4 Bh4 Rf8 Bg5 Ra3 Rc3 Bc4 Rg3 Ra2 Rg4+ Ke5 Ng7 Rf3 Nf5 Bd3 Nh4 Bh7 Nf5 Rb8 a8R Bg8 Ra6 Nc4+ Ka7 Bd7 Ra4 Rd8 Ra3 Bc8 Kb8 Rf8 Ra8 Rfa3 Nh6 Rff3 Nf5 Ra7 Rh2 Rgg3 Rd2 Rg2 Rd1 Rf4 Nd3+ Ke4 Bc6 Kf3 Bb5 Rg3 Bc6 Kg2 Ne1+ Kh1 Bd7 Rff3 Bb5 Bd7 c8B Rg2 Bf2 Be8 Bcd7 Kh2 Bdc6 Bd7 Bfe3 Bc8 Bg1+
3k4/PrbqN1NK/2B2p2/2nB2b1/b2NP3/3pB1p1/1R1bQ2R/nRr3Br b - - 0 1 illegal: No proof kernel
2NrbN2/B5Q1/k2R3q/1p1b2R1/2B1r1pB/qPr2N2/nprRPK1R/2n5 b - - 0 1 illegal: No proof kernel
2N1R3/q1r2R1K/P1nrnP2/1pbp3B/4N3/1bBp2B1/qN1b2k1/B1b2R1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 Kf6 Ke4 g5 c4 e5 h4 b5 a4 g4 f4 d3 h6 d6 h7 g3 a5 b3 a6 b2 c5 g2 h5 Nc6 h6 Be7 Qg4 Bf8 Qh4+ Kf7 f6 Ke6 f7 Qa5 Nh3 g1B Na3 b1Q Nc4 Nge7 Nf2 Nd8 c6 Qb6 c7 Qa2 Nb2 Qa7 Be2 Nec6 Bh5 Bd7 Be3 Rc8 Re1 Be7 f8R Bg5 Rf7 d5+ Kf3 e4+ Kg4 Rf8 f5+ Ke5 Re2 Ne6 Bf4+ Kd4 Re1 e3 Bg3 e2 h8B+ Ke3 h7 Rfd8 Ne4 Be8 Rf1 e1B Bc3 Bd2 h8B Rd6 Bhd4+ Ke2 f6 Bgf4 Be5 Bc5 Kf5+ Ke3 Kg6 Bh6 Rf4 Bg5 Rg4 Kf3 Rf1+ Kg2 Kh7 Bge3 Rg8 Bc1 Bed4 Bed2 Re7 Bf7 Rge8 Bg6+ Kh8 Bf5 Rf7 Bg4 Kh7 Bd1 Bde5 Rb8 c8N Rb7 Nc4 Bb3 Ba1 Rdd7 Bec3 Rbc7 Nb2 Rd6 Qh1#
k3RRRB/1Br4P/1nN1N1PR/pp2bK2/5QnB/qqpNr3/2b2n2/1n6 b - - 0 1 illegal: No proof kernel
1KbR3r/2RB1pB1/NN1q1k2/2R1p1np/1r4P1/2b3P1/n1B2N2/1b1RqQ1b b - - 0 1 illegal: No proof kernel
B3q1kB/BpbR1n2/2NR2P1/1bP3N1/2R3QK/2rBn3/nn3Npp/1r5q b - - 0 1 illegal: No proof kernel
2q2rQK/B1B2b1B/1b3R2/2qR1BN1/6Rp/pN1P4/1rrn2pP/3kNbq1 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Bh3 fxg4 Kf1 d3 Kg2 d2 Kg3 Nh6 Bf1 Ng8 Kg2 Qb6 Ra6 Qc7 Ra1 Qd8 c3 d5 Ra5 d4 Qa4 d1B Qc4 d3 Qe6 d2 Qb3 Nc6 Ra3 Ne5 Ra1 Nd3 exd3 Qa5 Ra3 Qb6 Ra1 Qd8 Kg3 Kd7 Kh4 Kd6 Kh5 Ke5 f4+ Kf5 c4 a5 b6 e5 c5 g5 b7 e4 b8B e3 c6 e2 c7 e1Q Ba7 g3+ Nf3 g4 Rg1 a4 Bg2 Qf2 Ne1 Be6 c8B a3 Qb8 h6 b4 Qc5 b5 Be2 b6 d1R b7 Bf1 Nd2 Be7 Bb2 Rb1 Be5 Rb2 Nb3 Qf8 Rd1 Bd8 Bc7 Rc2 Bc6 g2 Bf3 g3 Be4+ Kf6+ f5 Bf7+ Kh4 h5 Ra1 Kg7+ f6+ Kh6 Bcf5 Qe8 Qc8 Rb8 Qe6 Qd7 Bh7 Qc8 Bef5 Ne7 Rd1 Nc6 Rd2 Na5 Rf2 Rf8 Qe8 Rh8 Qg8 Nc4 Rf4 Nd2 Rg4 Be2 Rf1 g1Q Rf3 g2 Rff4 Ra8 b8R Bf1 Rb5 Rb8 Rf2 Qd4 Rd5 Qc5 Bd6 Bb6 Bc7 Bg6 f7 Rb7 f8N Bf7 Kh3 h4 Ne6 Kh5 Ng5 Rb8 Qg7 Re8 Qg8 Rf8 Re4 Kh6 Kg4 Rb7 Kf4 Kh5 Ke5 Rb8 Kf6 Rb7 Rb4 Rb8 Be4 Kg4 Kg7 Rb7 Rf6 Rb8 Rfd6 Kf4 Beg6+ Ke3 Rf6 Ke2 Kh8 Kd1 Rg4 Ba5 Nc1 Rbb2 Nb3 Bb6 Bf5
2N4b/1B2N1R1/n1pn1bRK/pqB2p2/2P1QR2/2Pk2RB/2bb2N1/5bnr b - - 0 1 illegal: No possible last move
1rN2bK1/r4p2/1Q5p/3b1b1k/1bPR1q1P/2Nb2N1/2npB2B/1RR1N1Bq b - - 0 1 illegal: No possible last move
Kb1RnR2/p4B2/1N2n1p1/1B1NbqQ1/N2b1p1k/2b2b2/P4rPB/2q2NR1 b - - 0 2 illegal: No possible last move, all moves rejected
2K1bb1B/1r1BN1Q1/1R2p2r/1p1b1q2/5B2/PP5k/nrR1R1p1/b2qN1BN b - - 0 1 illegal: No proof kernel
q1k2B2/pNb5/2Bbb1QR/1rP2qR1/1p1npR2/r4q2/1P2R1Nb/B3KN2 b - - 0 1 illegal: Other
qn1B1B2/2q1pNRR/1pb4b/2q1bkqP/5pr1/R1N2Q1N/4P2K/3r2RB b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 g5 Bg2 d5 cxd5 Na6 Bf1 Nc5 Bh3 Ne4 Bg2 hxg4 Bf1 g3 Bh3 g4 Bf1 Ng5 fxg5 Ra5 Bh3 Ra4 Bf1 Ra8 d4 Kd7 h4 f5 a4 c5 h5 b3 d6 Ke6 a5 c4 d7 g2 Kf2 g3+ Kf3 f4 d5+ Kf5 a6 b2 g6 c3 a7 c2 g7 b6 d6 Nf6 g8R Bh6 Ra3 Qc7 d8N Nd7 Nc3 b1Q Nf7 Nb8 d7 Qa2 d8B Bd7 Bb2 c1B Rg7 Rg8 Nh3 g1Q Bg2 Qgc5 Rg1 Ba4 Rh7 Rg4 Bh1 g2 Qf1 Be3 Qf2 Bd4 Qe3 Be5 Kf2 Q5d6 Qf3 Bc6 Rg7 Qf6 Ba1 Qg5 Bb2 Na6 Ba1 Rc8 a8R Nb8 Rh7 Qd5 R8a5 Qe4 Rd5 Qa4 Rd6 Qa8 Rg6 Qca7 Rg8 Rc7 Rgg7 Rd7 Re1 Rd4 Kg1 Rd1 Kh2 Qc7 Rg1 Qc8 Rf1 Qa7 Nd5 Qa8 Rg6 Bh8 Bg7 Qc7 Bf8 Be5 Rgg7 Qf6 Nhg5 Qg6 Nc3 g1Q+ Kh3 Qc5 Kh2 Qf6 Nh3 Qg5 Rg1
3q4/2kpR3/p1Rn2Rq/pbP1KB2/3B1BNb/N2q3R/2QP2n1/r1n3Nn b - - 0 1 illegal: No proof kernel
B1nB2b1/1r1N1p1P/3p1PR1/R2B1R1N/3nn1N1/bp2nk2/1n2b2R/KQ4r1 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 c5 b4 axb4 gxh5 cxd4 e5 d6 e6 Qd7 exd7+ Kd8 Be2 Kc7 Bf1 Kc6 Kd2 Kd5 d8R Ke4 h4 b5 a4 e5 f4 g5 c4 d3 h6 g4 h7 g3 f5 g2 h5 b3 Kc3 b2 h6 d2 c5 Ra6 a5 Rb6 c6 Rb7 c7 Na6 Nh3 g1N Nf4 Nc5 a6 Nf3 a7 Bg7 a8B Nd4 Ra5 Ne7 Rh5 Rg8 Na3 b1B Kb2 b4 h8R b3 Bc4 Bd3 Rf8 Be2 Nc2 Kf3 Bd5+ e4 Ka1 Be6 Qg1 d1N c8N Nb2 Nb6 Nc8 Nd7 Bf6 Qe1 Rg1 Rfg8 Bg5 f6 Bf5 Ne3 Bh7 Rg6 Bg8 Bd2 Nb6 Nd3 Nc8 Ng4 Be3 Bc3 Bf4 Qb1 Bc1 Bc4 e3 Bd5+ Ne4 Nf4 Bc4 Bb4 e2 Rf5 e1N Bc5 Ng2 Bb6 Ne3 Bd8 Nd3 Rh7 Ba3 Rh8 Nb2 Rh7 Kg3 Nh5+ Kg2 Rhg7 Bd3 h7 Be2 Rh6 Nf1 Rgg6 Ne3 Nf4+ Kg3 Rh2 Kf3 Nh5+
KN5b/Rnp1P3/Nr4nB/3pNr1p/1n1b1nB1/knQNRb1P/8/B2R4 b - - 0 1 legal: proof: b4 f5 d4 e5 a4 exd4 c4 b5 cxb5 Ba6 g4 fxg4 b6 Qc8 b5 Qd8 a5 Bc8 b7 Qe7 Ra2 Qf6 Ra1 Qb6 axb6 Kd8 Ra3 Ke7 Ra1 Ke8 Kd2 Ke7 Kd3 Kd6 Kc4 h5 e4 g5 f4 a5 h3 g3 f5 g4 f6 a4 f7 a3 Bd3 a2 Qf1 g2 Qe1 g3 Bh6 Nc6 b8R Bb7 Nf3 g1N Be2 g2 Nbd2 d3 Bd1 Ne2 Nb3 g1B Re8 d2 Nc1 Nge7 Nd3 Bg7 f8B Nd8 Kb4 Bc6 b7 Ra5 b6 Nf4 e5+ Kd5 e6 Neg6 Bc5 Ra6 Bf2 Rf8 Bd4 Rf5 Bc3 Kd6 Kc4 Bd5+ Kb5 B1d4 Be2 Bh8 Qc1 Ra8 Bd1 Rb8 Ka6 Kc6 Ka7 Kb5 Bb2 Be4 Qc3 d5 Be2 Ka4 Rhe1 Rc8 e7 Rb8 Nfe5 Bg2 Bg4 Bf3 Rab1 a1N Re3 Nb3 Ba1 Nde6 Rbe1 Nec5 Rg8 Na6 Rc8 d1N Rf8 Nb2 Rd1 Nc4 Rf6 Rg8 Rf8 Nb4 Ra8 Nf8 Kb8+ Nca5 Ra7 Ka3 Ka8 Rgg5 b8N Rg8 b7 Rg6 Na6 Rb6 b8N Nb7 Nf2 N8g6 Nfd3
4b3/PB6/pr1n1npR/b1Nrp2r/1B3nQ1/nRK3B1/N1N1k1Pb/R5N1 b - - 0 1 illegal: No proof kernel
1n1RB2B/3q1bRp/4rkP1/5RpQ/n2N2r1/1Nr2BPp/nr2nK1N/1N6 b - - 0 1 illegal: No proof kernel
Bk1bbrn1/4rR1P/N1P4B/6p1/1bQ2p1R/1Rn1pNB1/1R2q1pr/K4N2 b - - 0 1 illegal: No proof kernel
2K1B3/1N2r1pN/pbQ1k3/PP1R1bp1/B2Rr1N1/1qN1n2n/n2B1Rp1/q7 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 f5 cxb5 h6 g4 fxg4 Qd2 Ba6 Qe3 Bc8 Qg5 hxg5 Kd2 Kf7 Kc3 d5 Kd4 a6 h4 g3 f4 g2 a4 c6 b4 Nh6 e4 Qa5 b6 Bd7 h5 Ng4 h6 Ke6 f5+ Kf7 e6+ Kf6 b7 Bc8 e5+ Ke7 f6+ Ke8 e7 Kf7 e8N Bf5 e6+ Kg8 f7+ Kh7 e7 Kg6 h7 Ne5 Nd6 Kf6 e8B Ng4 Nh3 Nf2 Ra2 Ke6 Nc3 Ra7 Bb5 Nd7 b8R Ne5 Kc5 d4 Rd8 d3 Rd1 Neg4 Bd2 Re7 Nb7 Ne3 Rd4 Rg8 Bc1 d2 h8Q Ke5 Qh5 Ke6 Qf3 Rh8 Rd5 Rh4 Rb2 Re4 Rc2 Qc7 a5 Qe5 Kb6 c5 Ba4 c4 b5 Qf6 Ka7 Qd4+ Kb8 Qf6 Re1 d1Q Kc8 Qfd4 Ra2 Qb3 Rd1 Qf6 R1d4 Qe5 Ng1 Nh3 Rf2 Qf6 Bd2 Qe5 Nd1 c3 Ne2 c2 Nec3 c1N Rb4 Nc2 Ne3 Na2 Ng4 Ne3 Rc4 Rd7 Rb4 Bc5 Rbd4 Bb6 f8N+ Ke7 Nh7 Ke6 Qe2 Re7 Qd1 Qd6 Qe2 Qda3 Qc4 Qab2 Qc5 Qa1 Qc6#
n6N/1Brp1B2/1p2nN2/b2Qb3/1PqrbkB1/1p4Bq/1RpR1K1P/2R4N b - - 0 1 illegal: No proof kernel
6BN/R1p4n/2r5/K2pQ1np/pN5q/4rBn1/b2PBRPk/1R2bqNR b - - 0 1 illegal: No possible last move
bK3RNq/R1pRQNpn/2B5/N1Brp3/b2B1rN1/2b3P1/p2k1qP1/3n4 b - - 0 1 illegal: No proof kernel
4nNQ1/ppR1Kpb1/R2nBPN1/2P4B/3q2n1/N2kqR1p/2r1rB2/2bR4 b - - 0 1 illegal: No proof kernel
3b3R/BnBpp2p/n2R1P1b/2QP1B2/2b1N3/K3pB2/3kb3/1RNNrqr1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 d4 Kf7 Kd2 Ke6 Kc3 Kd5 Kb4 a5+ Ka3 h3 c4+ Ke6 f4 Kf5 g4+ Ke6 b6 h2 f5+ Kf6 d5 Ke5 c6 a4 f6 Bb7 c7 Bc8 b7 Na6 b8B Ra7 c5 Nh6 c6 Rg8 g5 Nf5 g6 Nd6 g7 Nb7 Qc2 Kd4 Bf4 e3 Nc3 Qe8 Nd1 Qh5 Be2 Qf3 Ra2 Qf1 Bf3 Ra8 Qc1 Kd3 Ne2 Ra7 Rg1 h1B Qc5 Ra8 Ra1 Kd2 Nc1 Bg2 Bg3 Bh3 Ba7 Bg4 Rb1 Rb8 Rb6 Bh5 Ka2 a3 Kb3 a2 Ka3 a1B Be5 Rh8 g8B Bc3 Be6 Ba5 Bf5 Rg8 Bd6 Bh6 Be5 Nd6 Bh2 Bb7 c8R Rg6 Rh1 Rg1 c7 Bc6 Rd8 Bb5 c8N Bc4 Rh8 Nb7 Nd6 Rbg8 Rc6 Bd8 Rb6 R8g2 Be5 Re2 Ne4+ Kc2 Bc7 Re1 Nef2+ Kd2 Rd6 Bd3 Rh4 Bb5 Rb4 Bc4 Rb1 Bg4 Bg2 Bge2 Bh1 Na5 Bf3 Nb7 Ne4+
BB3q2/1r3Rk1/3N2BN/2pb4/1Pqr1b2/p2p1rpK/3n1bPQ/RR3R1N b - - 0 1 illegal: No proof kernel
QB2N3/1pP3K1/bR4N1/2R3p1/RBnn4/1r4Bq/2r1p1Pp/nBrk2Nq b - - 0 1 legal: proof: e4 a5 d4 c5 h4 cxd4 b4 axb4 h5 f5 exf5 g6 h6 Bg7 hxg7 Qc7 Nf3 Qb6 Ng1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 h5 c4 d5+ Kf4 e5+ Kf3 h4 Kg4 h3 f4 b3 a4 g5 a5 d3 c5 e4 c6 h2 c7 b2 a6 d2 a7 e3 Nc3 b1R Nb5 d4 Ra6+ Be6 Nd6 d3 Rb6 Nc6 Qa4 Nh6+ Kh5 d1N Qa1+ Ne5 g8N+ Kg7 Ne7 Kf6 Qa2 d2 Bd3 e2 Ng6 Qd7 Ba3 Ne3 Bb4 Rb3 Bb1 d1Q Bc5 Rad8 a8R Rhf8 Ra4 Bc4 Qa1 Nc2 Ne8+ Kf7 f6 Ba6 f5 Nc4 Qa2 Na1 Bf2 Qe6 Bg3 Rd2 Qa3 Rc2 Qa2 Kg8 f7+ Kh7 f6 Nf5 Qa3 Nd4 Qa2 Rg8 f8B Rc1 f7 Qh3+ Bh4 Rh8 Bc5 Rbc3 f8B R3c2 Bfe7 Rf8 Bb4 Rf3 Bec5 Rb3 Qa3 Kg8 Kh6 Kf7 Rd6 Qf1 Ba7 Qd1 Rd5 Ke6 Bb8 Qe1 Rd6+ Kf5 Rb6 Ke4 Kg7 Ke3 Bg3 Qd1 Nf3 Qe1 Rf1 Qd1 Ng1 Qe1 Rf5 Kd3 Bbd6 Kd2 Bb4+ Kd1 Rc5 Rbb2 Qf3 Rb3 Qf6 Qf1 Qd8 Qe1 Ba7 Qf1 Qa8 Qe1 Bb8 Qf1 Nf3 Qh1 Ng1
2B2nB1/BB1R1bRp/Rnp1nrp1/N3K2P/1pq3q1/2P1N1Nk/2Q4q/3b4 b - - 1 2 legal: proof: e4 d5 f4 dxe4 b4 a5 Ne2 axb4 Bb2 e5 Bc1 e3 Ng1 e4 g3 f5 Ba3 b5 Bc1 Bd6 Bb2 Be5 fxe5 f4 Ba3 f3 Bc1 Ra6 Be2 Rf6 Bf1 Rf4 gxf4 Qf6 Nc3 Qg5 Nb1 Qd8 h4 Kf7 a4 Kg6 d4 Kf5 e6 Kg4 a5 e2 Kd2 e1N Ke3 g6 a6 c6 a7 b3 a8B b4 h5 b2 c3 Ne7 f5 Bb7 d5 Nc8 Kd4 e3 f6 e2 d6 f2 d7 Qf8 d8N Nb6 e7 Nd5 e8B Nd7 f7 Qg8 f8R Qe6 Rf7 Ba6 Nb7 N5b6 Na3 b1B Qc2 Rf8 Na5 Nd3 N3c4 e1Q Bb7 Q1e2 Rg7 N3c5 Bf7 Ba2 Bg8 Rf6 Be3 Nf8 Bh3+ Kh4 Rd1 Q6g4+ Ke5 f1Q Rdd7 Nce6 Rh2 Qef2 Ne2 Q2g2 Rh1 Qh2+ Ng3 Bb5 Bg1 Ba4 Ne3 Qfc4 Bf2 Qf3 Bf5 Qfg4 Ra1 Kh3 Ng2 Nc8 Ba7 Nb6 Ne3 B4b3 Qf2 Bd1 Qc2 Qf1 Bd3 Bd5 Bda6 Qfc4 Ra4 Ng5 Bc8 Bf7 Bab7 Nge6 Nb3 Qd3 Ra6 Qdc4 Na5
6n1/p3Rq2/b7/kNpn1Q2/N1np2Rp/BKP3RB/P2qqrrB/3R1N2 b - - 1 2 legal: proof: e4 f5 exf5 b5 h4 g5 c3 gxh4 Be2 b4 Bb5 Bg7 Bf1 bxc3 Qf3 c2 Qd1 Bc3 dxc3 Ba6 Qd5 Bb7 Qd1 Bc8 Kd2 c5 f4 h5 g4 e5 b4 d5 f6 Kd7 b5 Kc7 f5 Kb6 g5 e4 g6 h3 f7 d4 f8N h2 f6 h4 g7 Rh6 f7 Rh5 Nd7+ Ka5 f8R Rh7 b6 Qe7 b7 Nc6 b8B Qf7 Qg4 Qe6 Re8 Ne5 Ba3 c1N Kc2 e3 Re7 e2 Nf3 e1Q Nb6 Ba6 Rg1 h1Q Nh2 Qf7 Na4 Ncd3 Rg3 Nf4 Qf5 Qf3 Bh3 Nc4 Nf1 Qd2+ Kb3 Qfe2 Rg4 Nd5 Bh2 Rf8 Rg3 Ngf6 g8R Rh6 R8g4 Rg6 Bc1 Rg5 Na3 Ng8 Nb5 Rg6 Ba3 Rg7 Rd1 Rg6 Rf4 Rg5 Rd3 Rg2 Rg4 Qh5 Qe6 Rff2 Rdg3 Qf7 Qf5
b1k1RbR1/1p3rb1/1B1p1N2/4q1R1/3PbpB1/R3BPb1/1p5Q/Nn1rN1K1 b - - 0 2 illegal: Other
B2n1B1Q/3b3r/bn1RpNpR/7n/3pP2q/n2PB1pk/2nK2NN/1R1B4 b - - 0 2 legal: proof: c4 b5 b4 f5 g4 fxg4 Qc2 a5 Qa4 axb4 Qd1 b3 h4 b4 h5 g6 h6 Bg7 hxg7 Ra6 Qc2 Rb6 Qd1 Rb5 cxb5 Ba6 Bh3 Bb7 Bf1 Bc8 e4 Kf7 a4 Kf6 f4 d5 a5 h5 f5 Kg5 f6 c5 f7 c4 f8N c3 a6 b2 a7 h4 a8R h3 b6 Kh4 b7 e6 R8a3 h2 Ne2 b3 Nd7 d4 Ra6 c2 Rd6 Rh7 Nf4 Nc6 b8B Nge7 g8B Nd5 Ng2+ Kh3 Be2 Nb6 Nf6 Bd7 Bf7 Qh8 Be8 Nd8 Nc3 b1N d3 b2 Ncd5 Na3 Kd2 b1B Nde3 Ba2 Rb1 Bc4 Nf1 Ba6 Bf3 Re7 Qe1 Qh4 Bd1 Rh7 Qe2 Nb5 Ba3 c1N Bc7 Na2 Bc1 g3 Qh5 Nb4 Bb8 Na3 Qh6 Rf7 Qh8 Nbc2 Ba7 Rh7 Bb8 Bdb5 Bc6 Ba4 Ba8 Bd7 Rg1 h1N Nh2 Nf2 Rh1 Ng4 Ba7 Nd5 Bc5 Nb6 Rc6 Nh6 Bf8 Nf5 Rd6 Ng7 Ke2 Bab5 Be3 Nh5 Kd2 Bc4 Rb5 Nf4 Rh5 Ba6 Rh6 Nh5 Be2 Na1 Rb1 N1c2 Bd1
2Nr2q1/1rpp4/K1N5/p1k1nNrn/B2R2QB/1prPB3/1rBP4/bR2R3 b - - 0 1 illegal: No proof kernel
3Q3n/n1NR1pkp/2R4p/1nB1p2P/B2b4/bRBB1q1b/b1NP4/1rN1K3 b - - 0 1 illegal: No proof kernel
R3qR2/ppn5/b1pB4/KNP2RN1/1p1P3r/Bqn1b1q1/2N1B2q/1k2R2Q b - - 0 1 illegal: No proof kernel
6RR/B4KR1/N1BqR3/q1rN4/2q3pp/1bp1q3/1pBbP1QP/1kN3rn b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 Bh3 d5 cxd5 Nc6 Bf1 Nce7 Nc3 exf4 Nb1 f3 Bg2 f4 Bf1 Nf5 gxf5 Qd6 Qa4+ Qd7 Qd1 Qd8 Kf2 Kf7 a4 Kf6 d4 g5 a5 c5 a6 b5 d6 h5 a7 b3 d5 Ke5 d7 Ke4 f6 b4 d6 c4 f7 h4 Bg2 c3 Nh3 b2 Be3 b3 Qg1 Bh6 f8R Ne7 Ra6 Nf5 Rg8 Qa5 d8R Be6 d7 Rc8 a8B+ Bd5 Rf6 Rc5 Bc6 Ng3 Ba4 Bf7 Rg7 Rg8 Nd2+ Kd5 Ra8 b1Q d8N b2 Re6 Qe4 Nb3 Kc4 Nb7 Qe5 Qf1 Qd6 Nc1 Kb4 Rg1 Ka3 Bd1 Nh1+ Ke1 Rc4 Ba7 Rc5 Nd3 Ka2 Nc1+ Kb1 Qf2 Rf5 Nc5 Rd5 Na6 Rc5 Qg3 f2+ Kf1 Qab6 Bc6 Qa5 Re7 Ba2 Kg2 Bb3 Kf3 f1Q+ Kg4 f3 Kh5 f2 Nf4 Qh3 Re6 f1Q Nd5 Qff4 Kg6 Qc4 Qg2 Qe3 Kf7 g4 Rf1 Rd8 Rff6 Bf4 Rh6 Bg5 Rh8 Rf8+ Kg6 Rf1 Rag8 Rg1 Kf7 Qeg3 Rb8 Bd2 Rbg8 Qe3 Bc2+
3nr3/P1k1n2p/ppnRBB2/n1N5/3B1R1K/2b1QN1p/bPB2p1R/N4q2 b - - 0 1 illegal: No proof kernel
3q1B2/1P5R/2p1bR2/nR1BN1Bp/Kb2p1N1/bpBr1pp1/k1n1P3/5NQ1 b - - 0 1 illegal: No proof kernel
QB1K1R1R/q1N1n3/4p1nq/1br1P2B/N2B2p1/1qb2b2/3rbnPR/BN5k b - - 0 1 illegal: No possible last move, all moves rejected
1b2n1Br/1kRRb2n/p2b1BnN/K4N2/P1r3R1/3q1np1/3NqQP1/3B1N1b b - - 0 1 illegal: No possible last move, all moves rejected
b6B/K2B1N2/1NNr1ppr/N5R1/2r1p1P1/3k1Rq1/BR2qPQ1/b1nn1nb1 b - - 0 1 illegal: No proof kernel
R1b5/pq3N2/2r1Rnqn/2Q1B2B/k1BNNbpK/P2R2N1/pbq3P1/2nr4 b - - 0 1 illegal: No proof kernel
B1B2B2/1Nkp2K1/1Q5N/2rPrq2/1qb2B1b/pRN1qR1q/P1pR1n2/b3n3 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c3 b5 c4 bxc4 Ke2 c5 Ke3 h5 Ke4 a5 Ke5 a4 f4 a3 g4 c3 d4 c2 b4 h3 f6 h2 g5 c4 g6 c3 b5 h4 g7 h3 f5 Ra5 Nd2 Ba6 Ndf3 Qb6 f7+ Kd8 f6 Nh6 g8B Bg7 f8R+ Kc7 Bf4 c1Q Rb1 c2 Nh4 Ng4+ Kf5+ e5 Kg6 Qb7 f7 Nf2 Rb3 Nc6 Ne2 Rh5 Nc3 Nb4 Nf5 Nbd3 Nh6 Qe3 Qb1 Ne1 Rg1 h1Q Rg2 h2 b6+ Kd6 Bh7 Bc4 Be2 Qb8 b7 Qf1 Bf3 h1Q Be2 Bd5 Ba6 Bc4 Bg8 Bf6 Kh7 Bh4 Kg7 Rc5 Bh7 Qh2 Be4 Kc7 Bc6 Qhh3 d5 Qf5 Rh2 Q1h3 Qb2 Qd8 b8N Qe7 Bc8 Qd6 Ba8 e4 Bg5 Qb6 Nc6 Qb4 Qb1 Qc1 Rg2 e3 Na5 e2 Nb7 Qce3 Rh2 Qfe6 Bf4+ Re5 Re8 Qef5 f8B Nf3 Re6 e1B Rg6 Bd2 Rg3 Ne1 Rf3 Bc1 Rg2 Bb2 Rh2 Ba1 Qb2 Nh1 Rd2 Nf2 Qb1 Ned3 Qg1 Ne1 Qg6 Qee4 Qe6 Qe3 Qb6+
bBr2N1R/N1bq2N1/3pp3/Q1Rrr3/n3Pq1n/nB1P1Rp1/2k1KBN1/1n6 b - - 0 1 illegal: No proof kernel
b1q5/1Q3Np1/2Bqq2k/Rnrr1R1N/1K4n1/p1np1qP1/3PB2R/b1B2RN1 b - - 0 1 illegal: No proof kernel
2n5/kRbR1npB/5BnN/2R1r1Pb/Np6/3pN1K1/nP1q1rB1/2b2RbQ b - - 0 1 illegal: No proof kernel
rn1R4/r1q3n1/1pRp2Qq/3PB2N/2p1K2n/Nb3p2/B1PR1b2/2BBNr1k b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 gxh5 a5 Bb2 axb4 Ba3 Ra6 Bc1 Ra8 Kf2 Ke7 Kf3 Kd6 d4 Kd5 h4 f5 a4 g5 a5 c5 h6 b6 h5 b3 a6 b2 a7 Rh7 Na3 b1Q Qd3 Ne7 e3 Rf7 h7 Qc7 h8R d6 h6 Be6 h7 Bh6 Rh3 Rg7 Rd8 g4+ Kf2 g3+ Kf3 g2 h8B Qb4 Be2 Qd2 Bd1 Bg5 Rh7 Bh4 Rb1 Rf7 Be5 Bf2 Rb4 Rg7 Rc4 Bg8 Rh2 Rh7 Nh3 Rf7 Ng5 g1N+ Kg2 Rh7 Nf3 Bf7 Ne1 Nf3 Qf1 Ke4 Qg1 Ng6 Rc3 Ng5 Rc4 Ne6 Rc3 Kd5 Kf3 Ng7 e4+ Kc6 Bf6 Bb3 e5 Kd5 e6 Qe3+ Kg2 Ke4 e7 Qd2 e8N Qe3 Be5 f3+ Kf1 Nh4 Qg6 Qh6 Rc4 Bg1 Rd2 f2 Ke2 f1R Rc3 Bf2 Rc4 Kd5 Kd3 f4 Rc3 f3 Nf6+ Ke6 Qf7+ Kf5 Nh5+ Kg4 Ke4 Kh3 Qg6 Ng2 Nf4+ Kh2 Nh5+ Kh1 Rc4 Nd7 Rc3 Nh4 Rc4 Rc8 a8B Rb8 Bd5 Ra8 Rc3 Nb8 Bc4 Ba4 Ba2 Bb3 d5 Qe7 Rc4 Qc7 Ra4 c4 Ra7 Rh8 Ra5 Ra7 Rc5 Na6 Rd7 Rha8 Rd8 Nb8 Rc6
n1B2KRb/1rr2p2/1Nkpb1p1/N3n1n1/3P1RRB/2q1pP2/4QB1q/3RrN2 b - - 0 1 illegal: No proof kernel
B2N1qn1/qB5r/3bBpk1/1pp2qrb/2PN2Q1/4BPpn/1N1KR3/1q1RR3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g3 h5 g4 hxg4 h4 g5 a4 c5 e4 d5 c4 b5 a5 d4 h5 b3 a6 b2 e6 g3 h6 f6 e7 Kf7 e8R g2 e5 d3 a7 g4 h7 g3 e6+ Kg7 e7 Na6 Ne2 g1Q Be3 Nb4 Kd2 Kg6 Bh3 Nd5 Nd4 Bg4 Nc3 b1Q Na4 Bh5 Nb2 Qf1 Be6 Nf4 f3 Qh3 Re1 Qf5 Qc1 Rb8 a8B Nh3 Qc2 Qa2 Rad1 Qa7 Qc1 Qd6 Qa1 Rd8 Qa6 Qdb8 Qb7 Rd7 Qe4 Rd5 Qh4 Qe4 Qg4+ Rg5 Rd8 Qf5 e8B+ Kh6 Bg6 Bd6 Re8 Qd8 Bgf7 Qde7 Bed5 Qf8 Bfe6 Kg6 Bdb7 Ne7 Kc3 d2 Re2 Rg8 Ree1 Rg7 Re2 Ng8 h8N+ Kh7 Nf7 Kg6 Nd8 Rh7 Ra1 d1Q Re1 Qe2 Rad1 Qf1 Kd2 Q1d3+ Kc1 Qde4 Kd2 Qb1 Bf2 Qfe4 Bed5 Qf5 R8e2 Qaa1 Be3 Qa7 Be6
5B1k/R1N1K1RR/r1b4p/1p4BP/1PBN1r2/q1Np1nb1/3p2pN/1Qrnb3 b - - 0 1 illegal: No possible last move
R6B/1K1Q3n/1pRb1p2/pR5r/pbBn1pNp/Nrqb1P2/P1N2R2/4kB2 b - - 0 1 illegal: Other
b4rn1/PN6/bb3R1B/5B2/1P2r2b/BK1kB3/QpQ3Np/2B3Rq b - - 0 1 legal: proof: e4 g5 h4 gxh4 c4 b5 b4 f5 exf5 d5 cxd5 c5 d4 a5 dxc5 Nc6 a3 Nd4 Qxd4 a4 Qe3 Qb6 Qb3 axb3 a4 Qd6 Bxb5+ Qd7 Bf1 Qd8 Kd1 Kf7 f4 Kf6 g4 h5 d6 e5 d7 e4 g5+ Kg7 f6+ Kg6 a5 Kf5 f7 e3 g6 Ke4 c6 h3 g7 h4 c7 h2 f5 h3 f6 Rh7 a6 Qe8 d8B Be6 c8Q Bd7 a7 Nh6 g8Q Qe6 Na3 Qe7 Nb5 Qc5 Bb6 Qh5+ Ne2 Be8 Ba3 b2 Kc2 Qd5 Nf4 e2 Nd6+ Kf3 Rg1 e1B Ng2 h1B Bd3 h2 Nb7 Bc5 f8B Bh4 f7 Bb5 Bf5 Ke2 Raf1 Ba6 Rf3 Qe4+ Kb3 Bcf2 Rf4 Kd3 Be3 Rg7 Bfc5 Rg4 f8B Rb8 Qf7 Ng8 Bh6 Ra8 Qcc7 Rf8 Bc1 Be3 Rff1 Bef2 B5e3 Rf4 Bed2 Bb6 Be3 Rg4 Bc8 Qc6 Rf6 Re4 Bf5 Qc4+ Ka4 Qd4 Ne1+ Ke2 Na5 Re5 Rg7 Qd6 Qa2 Ba8 Nb7 Qd5 Rg1 Qh1 Ng2 Re4 Kb3 Kd3 Qc2#
3Q3N/nb1bQPn1/N1Rr1n2/4B1nn/nR2Pr1R/3qB2k/6R1/3R2nK b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kd3 Kf7 Ke3 Kf6 h4 Kf5 d4 f1N+ Kf2 a5 b4 c5 e4+ Kg6 f5+ Kh5 b6 g5 b5 a4 f6 a3 f7 a2 d6 c4 d5 c3 d7 c2 d6 Nc6 b7 Ra6 b8R Nf6 b6 Ng3 b7 Nf5 Na3 Na7 Ne2 g3+ Kg1 Kg4 h5 g2 h6 Ng7 Be3 c1N h7 Nd3 Rh6 Nf4 Nc2 N4h5 Nb4 f2+ Kh2 g1N Kh1 f1B Nf4+ Kg3 Ng6 g4 Ra8 Bd3 b8R Bb5 Qd2 Rc6 Na6 Bb7 Qb4 Nh3 Rd1 a1N Qc5 Rg8 h8B Ng5 Qe5+ Kh3 Qe7 g3 Rg1 Qe8 d8Q Nb3 d7 Nc5 Rg2 Qf8 Nc7 Rd6 Na6 Bc8 Rb7 Na4 Rbb8 Bc6 Rb4 B8b7 Rc8 Bb5 Rc6 Qe8 Qa8 Qc8 d8R Qf5 Rd7 Qd5 Qad8 Qd3 Rh7 Re6 Rd5 Rd6 Rh6 Qb3 Rd1 Qd3 Rc5 Be8 Rf5 Bb5 Rf4 Bd7 Rg4 Re8 Qf8 Re5 Qfe8 Rf5 Qee7 Nge8 Bg7 Rf4 Nh8 Nfh7 Bgd4 Nhf6 Rg6 Neg7 Be5 Nc8 Rc2 Na7 Rc6 g2+ Kg1 Ngh7 R4g5 Kh4 Kh2 g1N Kh1 Kh3 Rg2 Qd4 R6g5 Qd3 R5g4 Ng5 Rh4+
2nqq3/1n2qRNB/rb1N1N2/NN4Qr/Pr4n1/1b1qk3/1Q2P3/1BR3K1 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 gxf5 d5 c4 h6 cxd5 Ne7 b4 Ng8 Bb2 axb4 Bd4 Bc5 Be3 Bf8 Bg5 hxg5 Kf2 Ke7 a4 b5 h4 c5 d4 c4 e6 Kd6 e7 g4 e8B g5 f6 c3 f7 g3+ Kg2 g4 h5 c2 h6 c1Q h7 b3 Nf3 b2 Qc2 b4 Nfd2 b3 Kg1 g2 Qc3 Be6 Bb5 Ra6 Na3 b1Q Qb2 Nd7 Bd3 Nc5 Bg6 Bh6 f8N Ne7 Nd7 Nc8 Nf6 Nb7 Rh4 Qcc7 Ndc4+ Ke7 Rh3 Qd3 Na5 Kd6 Rc1 Qce7 Rf3 Be3+ Rf2 Qc3 Bb1 Qd3 Kh2 g1N Bg2 Nh3 Be4 g3+ Kh1 Ng5 Kg1 g2 Bg6 Nf7 Bf5 Re8 h8N Ne5 Bg6 Ng4 Bh7 Bf4 Rff1 Rg8 Rf3 Rg5 Rff1 Rh5 Rf2 Qee8 Nf7+ Ke7 Nd6 Be3 Nab5 Bg8 Nf5+ Kf7 d6 Ke6 d7 Qde7 Qc2 b2 d5+ Ke5 d8N Bb6 d6 Bb3 Ne6 Q7d8 d7 Qde7 Ba2 b1R d8Q Rb2 Neg7 Rb1 Ng8 Ke4 Nfd6+ Ke3 Rf4 Bd5 Rf7 Rb4 Qc3 Bb3 Nf6 Q7d7 Ng8 Rh4 Qb2 Bd4 Bb1 Bb6 Ne4 Rh5 Qh4 Qdd8 Ngf6 Ne5 Kh2 Ng4+ Kg3 g1Q+ Kh3 Qh1+ Kg3 Ba2 Ned6 Qhe4 Kh3 Q4e5 Kg2 Bb3 Kg1 Q5e7 Qg5+
n1rR4/qqNQBb2/q3Qn2/1kqR2K1/2qB1r2/5PR1/N2RbP2/5q1R b - - 0 1 illegal: No possible last move
1K3n2/1Qn1q1q1/bQRPn1Bq/2Q3R1/NB1b2n1/P1N2r2/1Q2q3/5Qrk b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 Kd2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 h4 g5 f4 e5 h6 b3 h7 b2 a3 g4 h5 d3 d6 g3 h6 d2 f6 g2 f7 Bg7 f8Q Qe7 Kb6 Nf6 f5 Ng4 f6 Rg8 h8Q Nd7+ Kc7 b5 f7 b4 h7 b3 Rh6 Ba6 Ne2 Kf3 Rh4 g1Q Qc2 d1Q Bf4 e4 Qc8 e3 f8Q Bd4 Qh6 Nf8+ Qd7 Qg3 Nbc3 b1N Qe5 b2 Na4 Nc3 h8Q b1Q Rh5 Qbc1 Q6f6 Qg1 Qc5 Nd5+ Kc6 Qg3 Rg5 Nc7 Nec3 e2 Qb1 e1N Bd3 Kg2 Qbb6 Qde2 Bg6 Nd3 Bd2 Nf4 Ra2 Rg7 Rc2 N4e6 Qc8 Qh1 Qcb7 Qh6 Qf1+ Kh2 Be1 Rf7 Qhf6 Qg1 Q6f2+ Kh1 Qb2 Rd8 Kb6+ Rf3 Ka7 Nh7 Rc1 Rg8 Q2b6 Nhf8 Kb8 Qe3 Qfb2 Qe2 Nd1 Rg7 Bb4 Rg8 Qf2 Qg3 Rc2 Qge5 Ndc3 Q5g7 Qf1+ Bg1 Qcd5 Nc5 Ne4 Nf2 Be8 Qgf7 Rf5 N5e6 Rc6 Rgg3 Qc4 Qfg7 Rg5 Ng4 Nec3 Rg2 Bg6 Rgg3 Qfc1 Rg2 Qcc5 Rgg3 Qcc2 Bd4 Qcc1+ Rg1 Qf1
3qQ1qN/3nR1q1/5Brb/1kNR2R1/3Rb1KQ/qn1P2bn/q2B1R1P/8 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Kf2 h5 Bg2 a5 Ke1 f4 Bh3 Ra6 Nc3 Rf6 Nb1 Rf5 gxf5 Rh6 Bg4 hxg4 Na3 Rh3 Nb1 Rh8 Kf2 Kd7 e4 c5 b4 g5 f6 g3+ Ke1 g2 Kf2 g4 d6 a4 b6 Kc6 d3 a3 b7 c4 e5 c3 f7 a2 d7 c2 e6 Kb5 e7 Rh6 e8R Na6 b8B Bb7 Bd2 c1Q Qe1 Qa3 Be5 Nc5 Ne2 g1N Re7 Rg6 Bf6 Bh6 f8R Nb3 Rff7 Be4 Nbc3+ Kc6 Rb1 a1B Na4 Be5 Nc5 Kb5 Rc1 Bc7 Rc4 Bd6 Rd4 g3+ Kf1 Nh3 Rg1 f2 Rg2 Qf8 d8R Qg7 Rff8 Bb8 R8d5 Qa2 Ng1 Be5 Ke2 Qa3 Nf3 f1Q+ Kd1 Qa2 Ng5 f3 Nf7 f2 Nh8 Qa3 Rg1 Qg2 Ke2 f1Q+ Kd1 Kb6 b5 Qf4 Qf2 Qh4 Qf4 Qg5 Qh4 Qf2 Rff7 g2 Rf8 Bg3 Rff7 Qff5 Ke2 Qd7 Rf8 Qda7 Rff7 Qa2 Rf8 Q7a5 Rff7 Qc3 Rf8 Ka5 b6 Kb5 b7 Qcb2 Rff7 Qba3 b8Q+ Kc6 Rf1 g1Q Qe8+ Kb6 Rf2 Qg2 Be5 Nf6 Rf8 Nd7 Rf5 Q5f6 Rg5 Kb5 Ke3 Qb6 Bf6 Qd8 Ke2 Qg1 Ke3 Bf5 Kf3 Be4+ Kg4 Qg8 Rg7 Qga1 Ra4 Qe5 Rad4 Qee7 Rh7 Qef8 Rf7 Qfg7 Re7
n2Q1rB1/Q2nQ1rQ/N1n2P1k/2qn3r/K3R3/B1Q1P1q1/2r3b1/R3Nq2 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 h4 gxh4 g3 e4 Qa4 e3 Kd1 exf2 Kc2 Bc5 Kd3 Kd7 Qd1 Ke8 Kc2 Bf8 Nc3 f5 Kb1 f4 Kc2 f3 Nb1 Bd6 Nc3 Be6 Nb1 Bf4 gxf4 Bc8 Kb3 Kf7 d4 Kg6 d6 c5 d5 a5 d7 h5 e3 a4+ Ka3 h3 b4 c4 f5+ Kh6 d6 h4 b6 h2 b5 c3 b7 c2 b6 h3 f6 Ne7 Ne2 Ra7 Nec3 Nd5 Nb5 Qg8 d8Q Nd7 b8Q Bb7 Qd3 Qg3 Qdc8 Rf8 Bg2 f1Q Qf5 f2 Bb2 c1R Qa8 Rc2 Nc7 Qb5 Qab8 f1N Na6 Nd2 Qbc7 Bc6 Rc1 h1R b7 h2 b8Q Qc5+ Qb4 Bb7 Rf1 Ba8 Rf4 Bc6 Re4 Nc4+ Ka2 a3 Kb3 a2 Ba3 Ncb6 Nd2 Rb7 Nf3 Na8 Ne1 Ra7 Q7b8 Rc7 Qa7 Bb7 Rd1 a1N+ Ka4 Nb3 Ra1 Nd4 Qc3 Nc6 Qd8 Rg1 Bf1 h1Q Bc4 Rh2 Qe8 Rh5 Qe7 Rg2 Ba2 Rc2 Bb3 Nde5 d7 Qf1 d8Q Rd7 Qd6 Rg7 Q6e7 Nd7 Nc7 Ba6 Ba2 Be2 Na6 Bf3 Bc4 Bg2 Bb3 Nf4 Bg8 Nd5 Qh7+
2QB1n1k/Rq3n1B/2r5/2B1b2P/2Q2b1K/BPB2bNR/2rp2q1/1nN3q1 b - - 0 1 legal: proof: e4 b5 d4 c5 Qd3 b4 Qd1 b3 axb3 cxd4 Bg5 a5 Bc1 f5 exf5 a4 g4 h5 gxh5 a3 Bc4 axb2 Ba6 Qc7 Bf1 Qd8 f4 Kf7 Kf2 d5 Kg3 g5 c4 Kg7 h4 e5 c5 e4 c6 e3 c7 e2 Qd2 e1B+ Kg4 d3 Qd1 d2 Ne2 d4 Ra7 d3 Nbc3 b1N Qc2 d1Q Ne4 d2 Qc4 Nd7 Ng3 Bd6 Rh3 Qe7 Ba3 Rh6 f6+ Kh8 f7 Be5 f8B Rc6 f5 Bb7 f6 Rc8 h6 Qc2 h5 Qg6 h7 Nh6+ Kf3 Qgg7 Nc1 Nf7 Bd3 g4+ Kg2 Qb4 Be7 Nf8 Bd8 Bf2 Be4 Be3 Bd3 B3f4 Kh2 Rb8 c8Q Ba8 Bc2 Rbb6 Be4 Rc5 Bd3 Bf3 Bf5 Rbc6 Bd3 Nh6 f7 Qb7 Bc2 Ng6 f8B Nf7 Bd6 Nf8 Bd3 Ra5 Bac5 Ra2 Ba3 Rc2 Bdb4 Qg6 Bc5 Kg7 h8B+ Kg8 Bhf6 Qg7 Ba5 Kh8 Bfd8 Qg8 Bc3 Qg7 Kg1 Qg6 Kf2 Qe4 Nh1 g3+ Kg1 g2 Kf2 Qg6 Be4 Qg7 Bh7 Bg5 Qf4 Qg6 Kg3 Bh6+ Kh4 g1Q Qc4 Q6g2 Ng3 Be3 Nd3 Bf4 Nc1
1Nq1Bn2/2QQ2n1/4PP2/1b1k4/1b2pQn1/Q2qR2N/2nnr1r1/B1K3QR b - - 0 1 legal: proof: g4 d5 e4 b5 d4 e5 a4 h5 gxh5 Be6 axb5 Bc8 c4 f6 Qf3 f5 cxd5 exd4 e5 Qe7 Qg2 Qd8 Qe4 fxe4 Kd1 Kf7 b4 g5 h4 a5 f4 c5 b6 a4 f5 a3 e6+ Kf6 d6 Ke5 d7 c4 h6 d3 f6 c3 b5 a2 b7 g4 h5 d2 h7 g3 h6 g2 b6 Ra4 Bb2 Kd5 Bb5 Ra7 Na3 Ne7 Nh3 g1N Nc4 Nf5 Ne5 Rg8 h8Q Ng7 h7 Nf3 Nc6 Bb4 Rc1 Ne5 Ba1 Ng4 Rb1 Qc7 d8Q+ Bd7 Rb3 Qc8 Qc7 Ra6 Qg3 Be8 Qg1 Nd7 b8Q Nf8 b7 Ra8 Qc7 c2+ Ke2 c1N+ Kd1 Ra6 Re3 Nb3 b8Q Bd7 Kc2 d1Q+ Kb2 Qf1 Qba7 Nd2 Nb8 Rb6 Qa3 Qd3 Ba4 Bb5 Kc1 Bc4 Be8 Bb5 Bc3 a1N Qf4 Nc2 Ba1 Nf5 Qg7 Ra6 Qe7 Ng7 h8Q Ra5 Qec7 Ra7 Qac3 Ra2 Qa3 Nh5 Bf7 Nf2 Qe7 Nb3+ Kb1 Rg2 Qh7 Ng4 Bc3 Ra1+ Kb2 Rc1 Be8 Re1 Qec7 Ree2 Qhg7 Nd2 Kc1 Qd8 Ba1 Qc8 Qgf7 Ng7 Qfd7+
QN2B1R1/N2RP1r1/b3b1Q1/r4B1n/5b1b/bR1Rq3/3q2Pp/n1kR3K b - - 0 1 illegal: No possible last move, all moves rejected
1Q1r1r1Q/3QRb2/Q2NrRb1/3P2r1/NP3k2/Q1B1n1np/q2q4/b2B2K1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 g4 a5 d6 h5 d7 f5 d3 c5 b6 c4 g5 h3 b7 h4 g6 a4 g7 a3 Qe1 c3 Rh2 f3 Ne2 c2 Bg2 a2 Bh1 f4 Ng1 Rh5 Nd2 Nc6 Ba3 c1Q Qf1 Rg5 Nb1 Na5 Nc3 Qd2+ Nge2 Nc4 Bb2 Ne7 g8Q Nf5 Qh8+ Bg7 Re1 Ng3 Kg1 a1Q Nd4 Qa2 Na4 Ne3 b8Q+ Qc7 d8Q Be6 Rg2 Qd6 Bc3 Bf7 Qd7 Bg6 Qba7 Rd8 Rf2 Bf6 Ree2 Bf7 Qa1 Bg7 Rf1 Bf6 Qa6 f2+ Kh2 f3 Nf5+ Kf4 d4 Bg6 e5 Bg7 e6 Be5 Rd1 f1B e7 f2 e8Q Bf7 Ree1 Bd3 d5 f1R+ Bg2 Rf2 Kg1 Bb1 Bf3 Be4 Ng7 Beg6 Nf5 Bg7 Rf1 Re2 Rf2 Bf6 Rdf1 Re1 Re2 h2+ Kf2 h1R Bh5 Ra8 Qb8 h3 Bg4 Rh2+ Kg1+ Rf2 Qc1 Be5 Qa3 Bg7 Qbb5 Rd8 Qb8 Nc4 Re8 Re6 Bd1 Ne3 Re7 Qe1 Bd2 Ba1 Bc3 Qed2 Qab6 Bg8 Nh4 Ke4 Qa6 Rff8 Rf6 B8f7 Nf5 Kf4 Nxd6+
R2rQb2/1KB1n3/2BRNNbN/1P1bQn2/r2q4/N4P2/1p1q4/1rNk3r b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 g4 c5 f6 e5 f7 h5 d6 c4 Kd5 Kf4 d7 b3 g5 c3 g6 c2 g7 h3 Na3 h4 Qe1 e4 d4+ e3 Bg2 Nh6 g8N b2 Nf6 h2 Bf3 Qb6 d8Q h3 Qe8 Ra4 Be4 Nf5 Ne2+ Kg5 Bd2 c1Q Ba5 Qd2 Nc1 Kf4 Qe2 Rg8 Rd1 h1R Bf3 h2 Ra2 Bg7 f8N Nc6 Qe1 e2 Be4 Qa7 Bc7+ Nd6 Bf3 Bf5 Ra1 Bg6 Ne6+ Kf5 Ra2 Bf8 Bg2 Qa6 Kc5 Ne7 d5 Qc8 Kb6 Qd7 Ne4 Kg4 Nf6+ Kh4 Ra1 Ndf5 Kb7 Qd4 Qc3 e1R d6 Qd8 d7 Reg1 Nh5 Kg4 Bc6 Qd2 Qe5 Qd4 Rd2 Rh8 Ne2 Rb1 Nc1 Rg8 Nhf4 Rh8 Nd5 Kf3 Ra2 Rg1 Ra1 h1B Rd1 Bg2 Rd2 Rgh1 Nf6+ Qe4 Rd6 Rg8 Nb3 Ke2 Nc1+ Ke1 Ra2 Qe3 Ra1 Bd5 f3 Kd1 Ra2 Qd2 Ra1 Nc8 Ra2 Qe7 d8N Qg7 Ra1 Nce7 Nf7 Qh8 Ra2 Qh4 Nh6 Qhd4 Qc8 Bg7 Qd7 Rd8 Qe8 Bf8 Nc4 Rb4 Ra8 Ra4 Na3
1n1Q2rB/B1bq2n1/1kqQ1QPN/q1p4Q/Q2b1r2/1b3R2/q1P5/1N1K2R1 b - - 0 1 illegal: No possible last move
r4q1k/B2K1b1Q/bP4rb/Rn2B1Q1/1N3Q2/1NRp4/P2QQ3/1q2rr1n b - - 0 1 illegal: No possible last move
qN2rNB1/Rr1n1b2/P1B1QQ2/RnN1N1kr/2q1r2p/5P2/5NK1/1q2b3 b - - 0 1 legal: proof: h4 f5 a4 g5 hxg5 a5 e4 d5 exf5 Qd7 c4 Qd8 b4 axb4 Ba3 bxa3 cxd5 Qd7 Be2 Qd6 Bf1 Qd8 d4 Kf7 g4 c5 d6 e5 f6 Kg6 f7 b5 f3 h5 Kf2 e4 a5 a2 a6 b4 d7 c4 d5 e3+ Kg2 c3 d6 c2 Qd4 c1R Nd2 e2 Nc4 e1R Nh3 b3 Ne5+ Kh7 g6+ Kh6 g7 b2 Nf2 b1Q Bb5 Rc7 Bc6 Ne7 g8B Re4 Qb2 Qe8 d8N Be6 d7 Kg5 Nb7 Nd5 d8N Nd7 Nc5 Rb7 Qe2 Bh6 f8N Nc7 Qc4 Bf7 Qe6 Nb5 Rc1 Kf4 g5 h4 g6 Kg5 g7 Qd3 Rd1 Qc4 Rd5 Rh7 Rb1 a1Q Rb4 Rbb8 Ra4 Rb7 Ra5 Qb1 Rd3 Kh5 Rc3 Bd2 Rd3 Nb8 Rd7 Kg5 Rc7 Rh5 Re7 Rb6 Ra7 Bb4 Bd5 Be1 Ndc6 Nd7 Nb8 Rb7 Bc6 Nd6 Bh7 Nb5 g8Q+ Bg6 Qh8 Bf7 Bg8 Nb6 Nbd7 Rc8 Nb8 Qd8 Ncd3 Nd7 Nc5 Qb6 Ra8 Re8 Ra4 Qa7 Ra2 Rb6 Ra5 Qb7 Ra7 Qa8 Kh2 Rb7 Kh3 Rb6 Kg2 Rb7 Qhf6+
3n3Q/r6B/P1bb1r2/1Rq1r1N1/1BQ2rp1/3N2k1/1N1PNq1q/N1KRn3 b - - 0 1 legal: proof: e4 d5 g4 a5 b4 axb4 c4 f5 exf5 h5 cxd5 c6 dxc6 hxg4 h4 Kf7 f4 Kf6 a4 b5 c7 e5 h5 g5 a5 g3 h6 b3 h7 g2 a6 b4 Ra4 e4 Rh4 e3 Qe2 b2 Kd1 g4 Rh3 b3 Qc4 Qd4 Rh1 Bb7 c8N Bc6 Rb4 Nh6 Na3 b1Q Bd3 b2 Rb5 Qc5 Nc2 Ra7 Ne2 Nd7 Nd6 Nf7 Na1 Nde5 Bc2 Rg8 h8Q+ Rg7 Rf1 g1Q Bd3 Nf3 Be4 Ke7 f6+ Kd7 f5 Nd8 f7 Qh2 f6 Ne1 Bh7 Rg6 Rh1 Qbf5 Rg1 Be7 f8N+ Kc7 f7 b1R Rf1 Rf6 Ng6 Qff2 f8N Rb4 Ne6+ Kd7 Ng5 Ra4 Ne8 Bd6 Ba3 Rb4 Kc1 Ra4 Qc3 Raf4 Ne5+ Ke7 Nd3 Kd7 Ng3 e2 Qc4 Ke7 Bb4 Kd7 Nc7 Ke7 Nd5+ Kd7 Nh3 Ke6 Nb2 Ke5 Rh1 Nc2 Rd1 e1R Ng5 Ree4 Bg8 Ne1 Ne2 Kf5 Nd3 Re5 Ndc3 Kg6 Bh7+ Kh5 Na4 Kh4 Nec3 Kg3 Nab2 Qfd4 Qcg8 Qdg1 Qc4 Qgf2 Ne2+
1q3r2/q2rpQ2/2K2P2/k1bRP1n1/rQ4rR/5Q2/1Qq1BQn1/N1b1B1N1 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 d5 Kd3 Kd7 b4 Kc7 f4 Kb6 c4 a5 e4 h5 e5 h4 f5 a4 g5 h3 f6 h2 g6 a3 g7 a2 Na3 Nd7 Be2 Ra4 Bb2 Nh6 g8Q Nf5 Bc1 Ne3 Bd2 Bh6 Nc2 Qb8 Be1 Nf8 Qf7 Ne6 Qd2 Ng5 Rd1 Rd8 Na1 Rf8 Nc2 a1Q c5+ Kb7 b6 Ka6 b7 Kb5 Nh3 g1B c6 g2 c7 Bf2 c8Q g1R Qcc3 Rg4 Qb3 Ng2 Ng1 Kb6 b5 Qb2 Qa2 Qb4 Qb3 Ka5 Na1 Qa7 b8Q Be3 Kc2 d3+ Kb2 d4 b6 Bf2 b7 Be3 Qd6 Qb8 Qc2 d2 Qd7 Qa7 b8Q d3 Qbb7 Bc5 Qf3 Qab8 Qd4 Qa7 Qdf2 Qab8 Rc1 d1Q Qd2 Qa7 Rc4 Qb8 Rd4 Qa7 Rd5 Qb8 Qc1 d2 Qc2 Qa7 Qcd3 Qbb8 Kc3 Qc1+ Qdc2 d1R Qb2 Qf4 Qd2 Qfb4+ Kd3 Ne6 Rd4 Bf4 Ke4 Ng5+ Kd5 Be3 Qdc3 Bc1 Kc6 Rd2 Rd5 Rd3 Nh3 Rdd4 Qcd2 Rd3 Rf1 h1Q Rg1 Qh2 Rh1 Rdd4 Ng1 Qh7 Rd8 Rd7 Rh4 Rb7 Rd6 Rd7 Rd5 Qc2 Qdxb4+
Q1BR3q/2P3rR/2B2Nq1/Knn5/BQBn3k/b1p1r3/qP1N4/bB5q b - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 e5 d4 exf4 dxc5 b6 a3 Qc7 a4 Qd8 c4 Be7 c6 Kf8 c5 Bb7 c7 Bc6 Be3 Bb5 axb5 Ke8 c6 Bf8 Bc5 bxc5 Kd2 Ke7 Kc3 f5 c8B d5 e4 a5 g4 h5 c7 h4 b6 a4 b7 f3 g6 Kf6 g7 Kg5 e5 h3 e6 d4+ Kc4 f2 Kb5 c4 e7 d3 e8B f4 Bf7 h2 Na3 d2 Bh5 f3 Qe1 d1N Rc1 Nc6 b8Q Nf6 g8B Nd7 Be2 f1Q Be8 f2 Bh7 Qg2 Nb1 f1Q Bf3 a3 Ne2 a2 Nf4 Ra3 Qa8 a1B Rc2 Qg3 Rd2 Re3 Rd6 Nd4+ Ka5 Nc3 Bg2 Nb6 Ba4 Rg8 Bgc6 Ncb5 Bhc2 Qe8 Rd8 Ba3 Qb4 c3 Nd2 Nd7 Bh7 Nc5 Bb1 Kh4 g5 Qc4 g6 Qa2 g7 Qgg6 Bbe4 Kg3 Bb1 Rh8 g8B Rh7 Bc4 Qh8 Rf1 h1Q Nh5+ Kh4 Rf7 Rg7 Re7 Rg8 Rh7 Rg7 Nf6+
NQ1r2Q1/QN4p1/3n1B2/nn3rb1/1r2q1k1/5bRR/QP1rP1Bn/3Q3K b - - 0 1 illegal: No possible last move
nK3Q2/r3pRBb/3PnrnP/n2r1Rk1/1B4BN/3BB2r/3Q4/N4bq1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 g5 f4 b5 axb5 h4 e4 Nc6 e5 Nd4 g3 Ne2 Ra2 Bh6 Ra1 g4 e6 Bg5 fxg5 hxg3 Qb3 Bxe6 Qd1 Bc8 b4 c5 d4 a5 Kd2 f5 Kd3 Kf7 Kc4 Kg6 h4 f4 h5+ Kf5 g6 g2 b6 g3 Kb5 f3 Kc6 c4 b5 f2 g7 c3 d6 a4 d5 c2 h6 a3 d7 a2 b7 Ra5 b8B Nf4 b6 Ng6 b7 Nf6 g8B Ne8 Rh4 Nc7 Rf4+ Kg5 Nd2 Na8 Bd3 f1B Be6 Rf8 Bg4 Rf6+ Bd6 Qg8 d8Q Bf5 b8B Ra3 Rb1 a1R Kb7 R1a2 Bb2 c1N Qf8 Nb3 Ba7 Na5+ Kb8 Ra1 Bb4 Rb3 Ne2 g1N d6 g2 Be3 Nh3 Nd4 g1R Nc2 Raa3 Na1 Rc3 Rf3+ Nhf4 Rc1 Rc5 Rc4 Rg3 Qe2 Rd5 Qg2 Rf7 Bg7 Rh3 Qe2 Rf6 Qd1 Kh4 Re4 Ne6 Ref4 Ne5 Qc2 Bh7 Rf2 Ng6 Nf3+ Kg3 Qd2 Ra4 Ne1 Kh4 Ng2+ Kg5 R2f3 Nc4 Rf2 Ra7 Nh4 Na5 Rc4+ Ngf4 Bd1 Rff5 Bgc3 Qf7 Bg4 Qf6 Rf3 Qf7 Bg7 Qf6 Bg1 Qd4 Rf2 Qe3 Rd4 Ng6 Rc4 Rfe5 Rf7 Rf5 Rf4 Rf6 Bf2 Qg3 Be3 Qg1 Rf5+
1N1Rr3/QNq5/1n3kB1/1pN3R1/1K1b2q1/rN1NPn2/2Q2BnP/rn3n2 b - - 0 1 legal: proof: b4 d5 g4 h5 gxh5 e5 c4 b6 cxd5 Nh6 f4 exf4 b5 Ng8 a4 Be6 a5 Bc8 a6 Bb7 axb7 a6 Ba3 axb5 Bc1 b4 d4 Ke7 Kd2 f5 e3 g5 d6+ Kf6 d5 c5 h6 g4 h7 f3 d7 f4 d6 b5 Ra4 f2 Ra1 b3 Kc3 c4 Nf3 b2 Ra5 g3 Bg2 f1N Rg1 Qc8 d8N Nd7 b8N Nb6 d7 Nh6 Ne1 f3 Bd2 f2 Be4 g2 Nb7 Nf5 d8N Bg7 Nc5 Re8 h8Q Nh4 Bg6 Qg4 Qc2 Ra7 Kb4 c3+ Kb3 Ra8 Qh7 Ra6 Ndb7 Ra8 Qd1 c2 Ned3 c1Q Be1 Bh8 Nd2 b1N Ra4 Bg7 Re4 Ra3+ Kb4 Bh8 Rd4 Qc2 Na4 Qc7 Nb3 Nfd2 Qc2 f1N Bf2 Ndf3 Rh1 g1R Nac5 Ng2 Qd7 Ng3 Qh7 Rf1 Rg1 Rd1 Be4 Nf1 Rd8 Kg5 Qd7 Bd4 Bg6 Kf6 Nd6 Qc6 Qa7 Qc7 Ndb7 Rd2 Qc4 Rda2 Qc2 Ra1 Bh5 Ngh4 Rg3 Ng2 Bg6 Qgc8 Rg5 Q8d7 Qa5 Qg4 Qa7
6kb/P1N2qN1/n4Rb1/5Q2/n4rBp/N2RKn2/Qq1nNPB1/2Nb2q1 b - - 0 1 legal: proof: h4 b5 e4 d5 c4 g5 cxd5 f5 exf5 Nf6 g4 a6 h5 Nc6 h6 Nh5 b4 a5 Bb2 Nb8 Be5 axb4 Bf4 Ra3 Bg3 Rc3 Bh4 gxh4 g5 Nf6 Ke2 Ng8 Ke1 Rc6 g6 Rf6 Qg4 Rf7 Qd1 Rg7 hxg7 Ba6 Qh5 Bb7 Qd1 Bc8 Ke2 e5 a4 c5 d4 h5 f6 e4 d6 h3 d5 b3 a5 h2 a6 b2 a7 b4 Qd4 c4 Qe3 b3 Qd3 c3 Qf3 c2 Ke3 h4 Bg2 Bg4 Ra6 Ne7 g8Q Qc7 g7 Nc8 Ne2 Nb6 Qf5 Qf7 Nc1 Bd1 Na3 b1B Re1 h1Q d7+ Kd8 Re2 b2 Rd2 Qg1 Rd3 Na4 Rc6 Na6 Re6 Kc7 d8N Kd7 Nc6 Rh5 Rd6+ Ke8 Nd4 Rg5 Nde2 Rg4 Rc6 Rf4 d6 Qc4 Qgh7 Qf7 g8B Bg7 d7+ Kf8 d8N Bh8 Qd5 Qe1 Qa2 Qg1 Nb3 c1N Qf5 Bbc2 Rcd6 b1Q Bh7 Qb2 Ne6+ Ke8 Ng7+ Kf8 Bg6 Kg8 Bh5 Bb1 Bg4 Bbc2 Nbd4 Nb3 Nc1 Nd2 Re6 Bf3 Nde2 Bd1 B4h3 Bh5 Bg4 Bg6 Nc3 Nc7 Kd4 Na6 Rc6 Qfb3 f7+ Kh7 f8N+ Kg8 Rf6 Qf7 Nfe6 e3+ Qe4 e2 Nc7 e1N Ke3 Nef3 N3e2 Ne5 Qed5 Nef3 Qf5
1N2q3/p5qR/5r1n/P3kN1B/1Pn1R2B/1K2Q1bB/1bQq2nq/1B2b2B b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g3 f5 g4 fxg4 h3 g5 Nd2 g3 Rb1 g2 Qa4 g4 Qd1 g3 Ra1 Bb7 Nb1 Bc6 Na3 Bf3 Nb1 Bg4 hxg4 Qf6 Rh5 Qg5 Rh1 Qd8 Kd2 Ke7 Kc2 Ke6 b4 c5 f4 d5 e4 h5 a4 c3 g5 d4 f5+ Kd7 e6+ Kd6 f6 c4 a5 h4 g6 h3 g7 h2 e7 Ke5 e8B Rh4 f7 Nc6 Na3 Bd6 f8Q Nh6 Bg6 Qe8 Ne2 g1B g8B g2 Bg5 Bf2 Bd5 g1Q Nb5 Be1 Ng3 Qg2+ Qf2 d3+ Kc1 d2+ Kc2 Rf4 Nc7 Rf6 Na6 Rb8 Qdf3 d1N Bh4 Rb6 Nb8 Ne3+ Kc1 c2 Kb2 c3+ Kb3 c1B Qc2 Qg1 Bh3 Ng2 Qe3 Bb2 Nf5 Rb7 Bh7 Re7 Rd1 Ree6 Rd4 Re7 Qce2 c2 Bg6 c1Q Qc2 Qd2 Bh5 Nd8 Ba8 Ndf7 Bb7 Ke6 e5 Bc7 Be4 Nd6 Bhf3 Nc4 Bd3 Kf7 e6+ Kg6 Bd5 Bcg3 B3e4 Rb7 e7 Rbb6 Qb1 Rbe6 Qc2 Re5 Bd3 Re4 Bc6 Kf7 Ba8 Ke6 Bc6 Qc8 e8B Ke5 Bh5 Qg8 Qc1 Qg7 Bb1 Qgf2 Qc2 Qfe2 Rf1 h1Q Rf4 Qg1 Rg4 Qh8 Rg7 Qh2 Rh7 Qg7 Qf3 Rg4 Rd6 Nf4 Rd7 Ke6 Qf2 Qe5 Bh1 Ng2 Qc5 Re4 Qe3 Qb5 Rd6+ Ke5 Rd4 Qe8 Rxe4+
1rb5/pP1b1rRQ/2r4R/n3b1Bb/3Q1BR1/1RR1N1N1/2P1K1b1/rk5q b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 g6 exf5 Kf7 d4 cxd4 f6 Ke6 f7 Kd6 h4 Na6 g4 Bg7 f5 Kc5 f6 Kd6 g5 Ke5 Bh3 Nc5 Bg4 Kd6 Bf5 gxf5 g6 Bf8 Qg4 Ne6 Qd1 Ng5 hxg5 Ba6 Ne2 Bb7 Ng1 Bc8 b4 Ke5 g7 d5 b6 h5 b5 f4 b7 f3 b8R h4 b6 f2+ Ke2 f1R g6 h3 b7 h2 Bh6 d3+ Kd2 Kd4 Ra3 e5 Bf4 e4 Ra1 e3+ Kc1 d2+ Kb2 e2 Ra5 e1R Nc3 Rh6 Ra3 Ne7 g8Q Bg7 f8B Nc6 f7 Qh4 Qh7 Be5 g7 Na5 g8R Rc6 Rg7 Qh6 Qa1 d1B Kc1 Bdg4+ Kd2 Bgd7 Nd1+ Kc4 Bg5 d4 Bd6 d3 f8R Rf7 Ne2 Rg1 Ke3 d2 Ng3 Rgf1 Rg1 h1B Rh8 Bg2 Ke2 Qh1 Bc7 Kb4 Ne3 d1B+ Kd3 Bc3 Bcf4 Bh5 Qd1 Be5 Qg4 Be6 Ke2 Bcd7 Rbf8 Ra1 Rc8 Rb8 Rc7 Rb6 Rc6 Bf5 Rh6 Rc6 Rc8 Bfe6 Ra4+ Kc3 Ra3+ Kb2 Rc7 Rb6 Rcc3 Rd6 Rd1 Rc6 Rd4 Kb1 Re4 Bg6 Qh4 Beh3 Qg4 Bc8 Qd7 Bhf5 Qd4 Bh5+ Kf2 Bf6 Bd6 Qh2 Rg4 Bfd7 Ke2 Qh1 Bdf4 Be5 Rab3+
3b2nk/rbR2r2/3R1br1/3bB1p1/2Q2B2/PBQbb1PB/5n2/NNB1K3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 b3 h4 g5 a3 Qd7 h5 Qb5 Qc2 Qa6 Qa2 Qg6 hxg6 bxa2 d4 e5 f4 b5 d6 c5 d5 h5 f6 h4 g3 h3 g7 Kf7 f5 h2 d7 b4 d8B c4 d6 c3 d7 c2 Be3 c1B Bf2 b3 Be3 e4 Bc7 b2 d8Q Bb7 Qc8 Nd7 Ne2 Be7 Nd4 Ne5 Bh3 Bd8 Nb3 Ng4 Be5 Ra7 Qc3 Rh7 Rf1 h1B Rg1 Ne7 g8B+ Kf8 f7 Nf2 Bd2 e3 Qc4 e2 Bef4 Kg7 f8Q+ Kh8 f6 Ba6 f7 Bd5 Qe8 Bc8 f8B Bcb7 Qec6 Rg7 Bf7 Ng8 B8d6 Rg6 Bde5+ Bf6 Nc3 b1B Rf1 Bd3 Nb1 Bb2 Bfe6 Bd4 Bc1 Bc5 Qc3 Be7 Q6c4 Bd8 Kd2 e1R Bf7 Re3 Rd1 Rf3 Ke1 Bf5 Rd4 Bd3 Bfe6 Bdc6 Rd6 Bce4 N1d2 Bed5 Rb1 a1B Rb2 Ra4 Rc2 Ra7 Nb1 Bb2 Qd2 Bc3 Na1 Bd4 Qdc3 B4b6 Bfe3 Rf5 B3f4 Be3 Q4b4 Bh1 Bb3 Bhd5 Qcc4 Bg7 Qa5 Rf7 Qac3 Bgf6 Q4d4 Nh6 Qa5 Ng8 Rc7 Nh6 Qc4 Ng8 Qac3
2Qr3n/n1R2BB1/b1k1NQp1/2b2r2/1BBP1r2/3b2rR/PK3B2/Nb4n1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 d4 Kd7 Kd2 b5 Kc2 f5 h4 c5 e4 f3 e5 c4 d6 g6 h6 c3 h5 f4 h7 f2 e6+ Kc6 e7 f3 d7 Nh6 e8B Nf7 h6 Bc5 Bc4 f1R Bf4 f2 Nh3 Ra3 Qc1 Ba6 Bd2 Qc7 Nf4 Rg8 Rh5 Nh8 Bef7 Rd8 Ne6 Rb3 Rh1 Ra3 Rh3 b3+ Kd3 c2 Kc3 b4+ Kb2 Qb6 Be1 Qc7 Qg5 c1N Qf6 Ne2 Nd2 Ng1 Rb1 Rg8 d8B Re8 Be7 Rd8 Kc1 b2+ Kc2 Rf3 Nb3 Rg3 Na1 b3+ Kd1 Bb6 Bb4 Bc5 Kd2 Rg4 Kc3 Rg2 Rc1 b1B Kb2 Bd3 Rb1 Rg3 Bec3 Rc1 Be1 f1R Bf2 Rce1 Rd1 Re4 Re1 Rf4 Re5 Ba7 Rb5 Bc5 Rb7 Rf5 Bg8 Nf7 h8B Rf4 Bg7 Nh8 h7 Rf5 Ka3 b2 Bf7 b1B Kb2 Kd6 Bc3 Nc6 Bb4 Na7 Be8 Nf7 h8Q Rf4 Qg8 Nh8 Bf7 Kc6 Qf8 Rd5 Qa8 Rd8 Qc8 Rf5 Be3 R1f3 Bf2 R3f4 Rxc7+
nq6/BbNkp2K/1R4r1/1nQN4/2Rnq1B1/Q1nP3Q/4QnP1/2qnQ3 b - - 0 1 legal: proof: f4 b5 c4 d5 a4 dxc4 axb5 g5 h4 gxh4 d3 Bh6 e3 Bg5 fxg5 a5 Kd2 Ra6 Ke2 Rd6 Ke1 Rd4 exd4 Qd6 Bf4 Qd7 Bc1 Qd8 Kd2 h5 Ke3 c5 Kf4 f5 b4 h3 d5 h4 b6 h2 b7 a4 b5 h3 d6 c3 b6 c2 g6 c4 Kg5 a3 g7 c3 Kg6 a2 Nf3 f4 Be2 Nc6 b8Q Rh6+ Kg5 Rg6+ Kh5 Na7 Ng5 f3 b7 f2 Qc7 f1N b8Q Ne3 Qa8 Bb7 Qac8 Nc4 Ne6 Nh6 Be3 c1N Bf3 c2 Qe2 Ng4 Nc3 Nb6 Nd5 Na8 Rb1 a1N Bc5 Na2 Rhc1 h1N d7+ Kf7 Qb6 Nb3 Nec7 h2 Qb4 Ne3 Qbe1 Nd4 Rb4 Nd1 Rcb1 c1Q Rc4 Nhf2 Rb3 Bc6 Qa6 Qf8 Qa3 Rg5+ Kh6 Bb7 Bb6 Qb8 Qc5 Ndc6 Kh7 Nd4 Rb2 h1Q+ Bh5+ Rg6 d8Q Qh4 Qd7 Nf3 Qh3 Qhf4 Bg4 Qe4 Ne6 Ke8 Nec7+ Kd8 Rb3 Nh4 Rb2 Nf5 Rb1 Kd7 Rbb4 Nb5 Ba7 Nd6 Rb6 Nb5 Ne3 Nac3 Qa3 Qd5 g8Q Qe4 Qd5+ Nd6 Qdc5 Ndb5 Ne6 Nfd4 Nd5 Ke8 Nec7+ Kd8 Ne6+ Kd7 Nec7+
5r2/B1qqRR2/1R3K1p/2b1QnP1/2rb1Q1R/1Nk2NPp/2B5/2bR1n1r b - - 0 1 legal: proof: f4 b5 c4 g5 a4 e5 axb5 exf4 h3 d5 cxd5 Bg4 hxg4 Nd7 Qb3 Nb8 Qh3 Qe7 Qh5 Qd8 Qh4 gxh4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Kf5 Kc4 d4 c5 e4+ Kb4 g5 a5 b6 f6 e5 f3 g3 h6 b7 a4 d6 f2 e6 a3 e7 c4 e8R c3 d7 c2 d5 a2 d6 Na6 Nf3 Rc8 Nbd2 Nc5 Nb3 Qc7 d8R Ne4 d7 Bc5 Bd3 f1Q Be3 c1B Re7 Nd2 Rf8 Qd1 d8R Nf1 Rb1 a1B Bc2 Qdd7+ Kg6 f5 b8Q+ Kc4 Rff7 f4 Bd4 Nd2 Rd1 h3 Rde8 Nf1 Re4 Qa7 Qe5 Ne7+ Kf6 Nf5 Ree7 Qac7 Re3 Bb4 Ba7 Bc5 Ree1 Rhf8 Re4+ Qd4 Ng1 f3 Rh4 f2 Nf3 Qe4 Rd6 Qd4 Rb6 Bf4 Rd1 Qdd7 Nbd4 Bd2 b4 Bc1 Nb3+ Bad4 b5 Kb4 Rc6 Kc3 b6 Nh2 b7 f1R b8Q Rh1 Rb6 Nf1 Qb7 Rce8 Qe4 Rb8 Rc6 Rb4 Qf4 Rc4 Rb6
5K1Q/4Bn2/2Qqbp2/P1r1QRN1/Bp1Q1n1R/Q4b2/N4Pqr/rk1b4 b - - 0 1 legal: proof: d4 a5 b4 axb4 h4 e5 c3 bxc3 dxe5 Ra5 Qa4 Ra7 Qd1 Ra8 e3 g5 hxg5 d5 Ba3 d4 Bc1 d3 Qd2 Bc5 Qd1 Bd4 exd4 Qd5 Be3 Qd7 Bc1 Qd8 g4 Kd7 a4 Ke6 g6 Kd5 e6 Ke4 e7 c5 e8Q+ Be6 d5 h5 d6 b5 d7 h4 g7 c2 Kd2 c4 Kc3 f6 Kb4 c3 Kc5 h3 Kd6 d2 g5 h2 g6 Qc8 d8Q Rh7 Qc7 Ne7 g8Q Nd5 g7 Nf4 Ke7 Qd8+ Kf8 Nc6 Qh8 Ne5 g8Q Nf7 Ba3 c1Q Nh3 c2 Be7 b4 Qg3 Qd6 Qa3 Rh6 Qg4 d1B Bb5 Ra5 Bd7 Rc5 Nc3+ Kd3 Qc6 Qe3 a5 c1R Ng5 Kc2 Na2 Qf3 Re1 h1B Re5 Bg2 Rf5 Rh2 Rb1 Qfd5 Rb3 Be4 Rh3 Ra1 Rh4 Kb1 Qb8 Bef3 Be8 Nh5 Qd4 Qe4 Qbb5 Qg4 Qe2 Nf4 Qee5 Qg1 Qc7 Qg4 Ba4 Qg2 Qc6
1qR2nQ1/N3Knrr/NbP1B1N1/1N1Q1Pk1/3b3p/pB1qn3/1q1R4/2N5 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Qb6 f4 Kd8 f5 Bb7 Bf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ke8 Nh3 Qc7 Ng1 Qd8 Ke2 Kf7 Kd3 d5 b4 e5 c4 h5 b6 a5 b5 a4 b7 a3 c5 f3 b6 h4 Ra2 f2 Nc3 Bd6 Rd2 Bc7 Nge2 Rh7 Nb5 Ra7 Nc1 Nd7 b8N Nf8 b7 Bb6 Nc6 Nh6 b8N Qc7 Na6 Qb8 Be2 f1N Rg1 Rb7 Nca7 Ne3 c6 Re7 Qb3 Rg7 Bd1 e4+ Ke2 d3+ Kf2 Kg8 g6 Nf7 g5 d4 Qd5 Rh7 g7 Rd7 Ra2 d2 Bb3 d1Q Rd2 d3 Re1 Qc2 Rd1 Nf1+ Kg2 e3 Kh3 e2 Kg4 Qb2 Re1 Rh8 Red1 Kh7 g6+ Kh6 g8B e1B g7 Bg3 Re1 Bf4 Re8 Bfe3 Rd8 Rc7 Rc8 Bed4 Kf4 Ne3 Ke4 Ne5 Be6 Rh7 g8Q Rcg7 f7 Kh5 Rf2 Kg5 Rd2 Nfg6 f8N Nf7 Nd7 Nf8 Ne5 Qc7 Ng6 Qh2 Re2 d2 Rf2 d1Q Rd2 Nf1 Qe5 Qde2+ Kd5 Qd3 Qe4 Ne5 Kd6 Ne3 Qd5 Nf7+ Ke7 Qe5 Re8 Qb8 Rc8
5N2/1b2Q1Rq/2PN3p/B1Rrn1P1/1rq2p1B/2BQn1BB/b1r5/2k1n1K1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 f5 gxf5 g5 h4 g4 Ra3 Be7 Ra1 Bg5 hxg5 Ba6 Nd2 Bb7 Nb1 Bc8 Kf2 Ke7 c4 Kd6 e4 Kc5 e5 Kb4 b6 a5 e6 d5 b7 d3 e7 d4 e8Q d2 c5 a4 c6 h6 f6 a3 f7 a2 f8B+ Qd6 Ne2 d3 Bh3 g3+ Kg1 g2 Qe7 Qc5+ Nd4 Nd7 b8B Bb7 Bg7 Ne5 Na3 Nf6 Bc7 Nfg4 Nb5 Rhb8 Nd6 Ne3 Ne6 Qc4 Nf8 Ra6 b3 Kc3 b4 Rb6 Rb1 a1N b5 Nac2 Ra1 Ra6 b6 Ne1 Ra5 Raa8 Rc5 Ra2 Qe2 d1Q Bd2+ Kc2 Bc3+ d2 Qd3+ Kc1 Ba5 Ng6 Bgc3 Qc2 Bab4 d1B Rh2 Ba8 b7 Ne5 Bca5 Bf3 Rh1 Bd5 Rh2 Rd8 b8B Bb7 Ba7 Rd7 Qe2 Qh7 Qd3 N1c2 Be1 Ra4 Bf2 Ne1 Bc3 Rb4 Bh4 Be6 Kf2 g1R Rg2 Rh1 Bg3 Rh2 Kg1 Rb1 Rb2 Rc2 Rb6 Rb4 Bh4 Ba6 Rb7 Bd5 Rc7 Bb7 Qf6 Bf7 Nb5 Nd1 Rd5 Bg8 Baf2 Ne3 Bfg3 Qd4 Rc5 Ba2 Qg7 Rd5 Nd6 Qc4 Qf6 Rb6 Rg7 Rb4 Qe7
2r4R/3b1q2/P2Pb2K/1R2B1n1/1nR1Rp2/qR2N1k1/N3p1rQ/3Qq1nB b - - 0 1 legal: proof: f4 d5 e4 g5 exd5 gxf4 d4 h5 c4 a5 b4 axb4 g4 Nd7 gxh5 Bg7 c5 Be5 Kd2 Bd6 cxd6 Nb8 Ke2 Rh6 Ke1 Rh8 Kd2 Kd7 a4 c5 h4 b5 h6 f5 h7 e5 a5 e4 h5 f3 Ke3 b3 Kf4 f2 h6 e3 a6 b4 Na3 c4 Bd3 b2 Rb1 b3 Bc2 c3 Nc4 Nf6 Kg5 f1Q Rh4 Nc6 Re4 Qa5 Ne2 Nb4 Kg6 Re8 h8R Qa3 h7 Rg8+ Kh6 Rg2 Bd3 c2 Nc3 f4 Na2 Qe1 Bf1 e2 Ne3 Rb8 Bd2 c1Q Bc3 Qcd2 Rc1 b1N Bb2 Qd3 Rc4 Nd2 Ba1 Nf3 Bb2 Rg5 Bg2 Ng1 Bh1 Rg2 Ba1 Bb7 Bc3 Bc6 Bb2 Ra8 Rb8 Qdd2 h8Q Nh7 Rb5 Rc8 Qe5 Qc1 Qh5 Ng5 Ba1 Nc2 Bc3 b2 Rb3 b1B Ba1 Kd8 d7 Nb4 Bb2 Kc7 d8R Bd3 Rf8 Kd6 Rf5 Bd7 Bc3 Be6 Ba1 Kd7 d6 Qcc3 d5 Qf6+ Qg6 Qf7 Be5 Bc2 Qh5 Bd3 Rcd4 Bb5 Rc4 Ke8 d7+ Ke7 d8R Bbd7 Ba1 Kd6 Rfe5 Ke7 d6+ Kf6 Rb5+ Qb2 Nd5+ Kf5 Rh8 Qc1 Be5 Qa3 Qg6+ Kg4 Ne3+ Kh4 Qh5+ Kg3 Qh2+
3r4/bR1qBpnR/1b6/3N1BNR/Pn3r2/k1qRQr1P/2Q1Kpn1/5R2 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 g4 h5 gxh5 exf4 Qc2 d5 Qa4+ Bd7 Qd1 c5 d3 Bb5 cxd5 c4 Bd2 c3 Bc1 Bc4 dxc4 Ra4 Be3 Ra3 Bc1 Ra8 a4 Ke7 e4 Kd6 h6 Kc5 e5 g5 h7 b5 e6 b3 e7 Kb4 e8Q c2 c5 b2 d6 g4 d7 g3 c6 f3 c7 g2 c8R Ne7 h3 Nbc6 Rh2 Nf5 Qd3 Ng7 Kd2 Bc5 Qf5 Bb6 Nc3 b1N+ Kd3 Nd2 Qfe6 Nc4 Bg5 c1Q Qf5 Ne3 Be7+ Kb3 Qg6 b4 Nd5 Qc7 d8R Qd7 Rb1+ Ka3 Rh1 Qc5 Rc7 b3 Rb7 b2 Rd1 Rg8 h8R b1R Rh5 Nb4+ Kd2 Qa5 Bd3 Rb3 Bf5 Rc8 Ke1 Rc4 Rd3 Rf4 Qc6 Ba7 Qc2 Qc5 Kf2 Qc3 Rc8 Rf8 Rc6 Rh8 Rch6 Rg8 Rh7 Rf8 Qb8 Rd8 Qe5 Bb6 Ne2 Ba7 Rf1 Bb6 Nd4 g1B+ Kg3 Ng2 Qe3 Ba7 Ne6 Bb6 Ng5 Ba7 Qe5 Bgb6 Qe3 f2 Qe5 Rh4 Kf3 Rf4+ Ke2 Qcc8 Rdd1 Rbf3 Qe3+ Qc3 Rd3
1B4r1/3Pp3/1B1rpNR1/3NK1B1/1bB1QR2/r1Q1Pq2/3kb1bq/1n1Bn3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 g5 a4 a5 Qb3 Bh3 axb5 gxh4 Qe3 a4 Qe6 a3 bxa3 Bg4 a4 Bh3 a5 Bf5 Qa6 Bc8 Qe6 fxe6 d4 Kf7 Kd2 Kf6 Kd3 Kf5 f4 h5 g4+ Kg6 Ke4 c5 b6 h3 f5+ Kf6 d6 h4 g5+ Kf7 g6+ Kf6 g7 h2 b7 c4 d7 h3 a6 c3 a7 c2 d5 Nc6 b8B Bb7 d6 Qc7 d8B Ba6 d7 Nb4 Nd2 Kg5 f6 Nd3 f7 Ne1 Ra4 Nf6+ Kd4 Kf4 g8Q Bb5 Qg2 Bg7 f8Q Rg8 Qg6 Bh6 Qfg7 Nd5 Qh8 Qd6 Bb6 Qc7 Qg2 Nc3 Qd5 Nb1 Ne4+ Kg4 Qb7 Bd2 Nf6+ Kf5 Rc4 Bb4 Bg5 c1R e3 Qg3 Ne2 Qf3 Rg1 h1B Nc3 h2 Be2 Bg2 Ncd5 h1Q Bd1 Qh2 Qc6 Rc3 Qh4 Ra3 Qf4+ Kg6 Ke5 Ra6 Rd4 Be2 Qc3 Ra3 Bd6 Rac8 a8B Rc6 Bb8 Rd6 Bb7 Qh8 Qh4 Qhh5 Qh1 Qh6 Rf4 Qh2 Ng4 Kh5 Ba6 Kg6 Bc4 Kh5 Bh6 Kh4 Ngf6+ Kg3 Bg5 Kf2 Qc1 Qg3 Qh7 Qh2 Qe4 Bd3 Bc2 Ke2 Qb2 Kd2 Bd1+ Bc2 Qbd4+ Bd3 Qc5 Be2 Qcd4+ Kc1 Qc3+ Nc2 Qg6 Bh3 Qe4 Bhf1 Rg4 Bh3 Bh4 Bg2 Qcd4 Ne1 Rg6 Bd3 Bg5 Kd2 Qa1 Be2 Qc3+
3Q3q/2pbK3/2r3Q1/QP4Qq/bp1RBrNB/QP1RN3/7r/1qnn3k b - - 0 1 legal: proof: f4 d5 e4 e5 h4 exf4 d4 b5 a4 g5 c4 gxh4 cxd5 b4 e5 Bd6 e6 Be5 dxe5 Qd6 Kf2 Qa6 Ke1 Qb5 axb5 Ke7 Qb3 Kd8 Qd1 Ke8 Kd2 Ke7 Kd3 a5 Kc4 f5 Kc5 h5 g4 h3 g5 h4 g6 h2 g7 h3 Nf3 a4 Qe2 a3 Ng1 f3 Ra2 f4 Nc3 f2 Qe1 f3 Be2 f1Q Nd1 f2 Be3 Ra6 Bg5+ Nf6 g8Q Bd7 Ne3 Nc6 Qc3 Qb1 Nf3 f1R Bh4 Na5 Bd3 Rc6+ Kd4 Rf2 Rd1 h1Q Be4 h2 Qg5 Rh5 Ra1 a2 Rd3 Qhd1 Qa3 h1B Nh2 Rf4 Nhg4 Bf3 Rd2 Qh1 Rd3 Bd1 d6+ Kf8 e7+ Kf7 Qg7+ Ke6 Qg5 Nd5 e8Q+ Ne7 Be1 Ba4 Qa8 Rh2 Bh4 Nd5 Qa6 Nc3 b3 Nb7 Qa5 Nc5 Kc4 Nd1 Kd4 Qc2 Rc1 Qb1 Rc2 Qf3 Rcd2 a1Q+ Kc4 Qh1 Rd4 Qab2 R2d3 Qe2 Nh6 Qh5 Nhg4 Bc8 d7 Qh8 d8Q Bd7 Bf2 Qf3 Be1 Qfh3 Bf2 Q3h5 Bh4 Kf7 Rc3 Nd3+ Kd5 Nc1 Rcd3 Qg6 e6+ Kg7 Qf5 Qgh5 Nf6 Kh6 e7 Qg5 Nfg4+ Kh5 Qe5 Qf5 Bf6 Qg5 e8Q+ Kh4 Qg6 Kg3 Be7 Qgh5 Bh4+ Kh3 Qeg5 Rf3 Nf5 Kg2 Nfe3+ Kh1 Qd6 Be8 Ke6 Bd7+ Ke7 Rg2 Bf5 Rf4 Qdg6 Rh2 Be4+
2k4n/2R4B/1bB2P1Q/Np4Pb/b7/n4rRr/1rqQp3/KB1BBNb1 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 fxe4 h4 c5 dxc5 g5 hxg5 d5 b4 axb4 cxd5 Bf5 Ke2 Bh3 Ke1 Bc8 Kd2 Kd7 Kc2 b5 Kb2 h5 f4 e5 g4 e3 a4 e4 d6 e2 g6 e1B g7 e3 c6+ Ke8 g5 b3 d7+ Ke7 f5 h4 c7 h3 a5 h2 a6 Ba5 a7 Bb6 Bd2 Nc6 Be2 Nd4 Be1 Rh3 Na3 Nc2 Nf3 Nh6 g8B Nf7 Bh7 Nh8 Nd2 Rf3 Rg1 h1R Nac4 Na3 Rg3 Rh3 f6+ Ke6 Nf1 Bfc5 Bed3 e2 Bb1 Qe7 d8Q Bg1 Na5 Qc5 Q1d2 Bb7 Ra2 Qc2+ Ka1 Bc6 Qf8 Be8 Rb2 Bh5 Qh6 Rd8 a8B Rdd3 Qf8 Kd7 Qh6 Kc8 Bc6 Rd4 Ra2 Rb4 Rb2 Qc1 Rc2 b2+ Ka2 Qd1 Rc5 Qc1 Bbc2 b1B+ Ka1 Rbb3 Bd1 Qc2 Bce4 Qc1 Bec2 Ba2+ Bb1 Rb2 Rc2 Bd5 Rc5 Qc2 Rc4 Kd7 c8B+ Kd8 Bd7 Bg8 Re4 Bb3 Re7 Ba4 Bc6+ Kc8 Rc7+
rn4R1/Q7/1nQP2nb/n3QKQk/qrQp1P2/2Rp1B2/4B3/1N2N1bb b - - 0 1 illegal: No possible last move
1r6/bB3R2/b1pPkqnQ/1Bn4b/2p1B2B/P5rN/2Rb1Nn1/1QB4K b - - 0 1 legal: proof: g4 d5 e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 Na6 f4 Bg7 c4 dxc4 g6 Bf8 g5 Qd3 g7 Qd5 g6 Qe5+ Be2 Qf6 Bf1 Qg5 fxg5 Nb8 Kf2 Kd7 Kg2 h5 d4 b5 a3 e5 f6 h4 f7 b3 d5 e4 Qd2 e3 Rh2 b2 Nc3 b1Q Nf3 c6 Nd1 e2 Kh1 e1B Ng1 h3 Bd3 b4 Bc2 b3 Nf2 b2 Ba4 Na6 Bb5 Ne7 g8Q Nc5 g7 Ba6 g6 Qf5 Qh6 b1B Qgh7 Bd2 g8B Qf6 g7 Rb8 d6 Bg6 Ra2 Bh5 Qb1 Ng6 Bh7 Rg8 Rc2 Ke6 Rg2 h2 Ngh3 Be7 f8B Bd8 Be7 Bb6 Rg1 Ba7 Rf1 Qf4 Bh4 Qf6 Kg2 h1N Kh2 Ne5 Be4 Ng3 Kg1 Ne2+ Kh1 Rgf8 g8B+ Rf7 Bg3 Ng6 Bh4 Nef4 Bh7 Rg7 Bf5+ Kd5 Bc8 Ng2 Bb7 Ke5 Ng1 Ke6 Ngh3 Nh8 Be4 Rg3 Ng4 Ng6 Rf2 Qh8 Rf7 Qf6 Ngf2
1kRn1b1B/6N1/1r1n1pK1/3B4/p4Pn1/1Qr1BbR1/B2qQqPn/NB6 b - - 0 1 legal: proof: b4 b5 d4 c5 a4 g5 axb5 d5 h4 e5 dxe5 gxh4 c4 dxc4 bxc5 Qd6 Rh2 Qd3 Rh1 Qd8 e4 h5 Ke2 a5 Kf3 a4 Kf4 c3 c6 h3 b6 h4 b7 c2 e6 h2 Kf5 h3 f4 Ra6 e5 Qc7 Bc4 Qd6 c7 Ra8 Ra3 Qa6 Nd2 Qa7 Bd5 Qf2 Rg3 Nf6 Nb3 Ne4 Nf3 Nc6 b8B Rh6 Be3 c1Q Na1 Qcd2 Nh4 Bb7 c8B Kd8 Qb3 Nd6+ Kg5 Ra6 Rc1 h1N Nf5 h2 Ng7 Rb6 Ba7 Kc7 e7 Rh3 e8Q Ba8 Bf5 Bb7 Bc2 Nd8 e6 Bc6 e7 f6+ Kg6 Kb7 Bb1 Ka8 Bb8 Bb7 Rc8 Bc6 Rf3 Ng3 Ba2 Nf1 Rg3 h1N Bb1 N6b7 Bd6+ Ka7 Ba3 Nd6 Bac5 Bb7 Qeb5 Ba8 e8B Nh2 Qe2 Bc6 Bef7 Bb7 Qbd3 Bc6 Bda2 Bf3 Qb3 Kb7 Bd5+ Ka7 Rc7+ Kb8 Ba3 Qfe1 Bb4 Nf2 Bbc5 Nfg4 Rc8+ Ka7 Bb4 Qf2 Bec5 N6f7 Nf5 Be4 Rf3 Bh6 Bd4 Rg3 Bf8 Nd6 Bg7 Rh3 Bh8 Bf8 Rc6 Kb8 Rd3 Rh7 Rc5 Rc7 Rg3 Rc8 Be3 Bf3 Ng7 Rc7 Ra5 Rc2 Rc5 Rc3 Rc8+
4kr2/2Rn1N1K/B4Q2/2Pn1B2/pr5N/2q1Rrpq/1R2RP1Q/Rq1bn3 b - - 0 1 legal: proof: g4 e5 d4 exd4 a4 g5 h3 b5 axb5 c5 Bd2 f5 gxf5 g4 h4 Bh6 Bc3 Bg5 hxg5 d3 Bd4 cxd4 Bg2 d2+ Kf1 Nf6 Bh3 Rf8 Kg2 Rg8 Kh2 Rh8 Bf1 Ng8 Kg3 Nh6 Kg2 Ng8 c4 h5 Kg3 d5 Kf4 a5 b4 a4 e4 h4 b6 h3 f6 g3 b5 d3 e5 d4 c5 h2 f7+ Kd7 Kf5 Nc6 Kg6 Rh4 f8Q Rf4 b7 Rh4 b8R Nf6 b6 Qe7 b7 Rh8 Nf3 Nd5 Na3 Rh4 Qf6 Ke8 e6 Re4 Qe1 d1Q Nh4 d2 Nc4 d3 Ne5 Qb1 Nf7 d1N Kh7 d2 g6 Nb2 g7 d1R g8B Ne5 Ba6 Rd3 Qg1 Rb4 Ra3 Qd7 e7 Qh3 Qg2 Qc2 Rha1 h1Q Qh2 Rf3+ Rd3 Qb3 Re3 Nbd3 Re2 Qc3 Re3 Kd7 e8R Ne1 Re6 Q1f1 Rc6 Ke8 Rc7 Ra7 Ra8 Qb5 b8R Qb6 Nd8 Bg4 Be6 Nd7 Rbb7 Qb5 Rab8 Ra8 Bf5+ Re4 Rb6 Qb1 Rb2 Bh5 Rbe2 Bg4 Be6 Rb4+ Bf5+ Ne7 Qg6+ Kf8 Rbb7 Rb5 Rb2 Nd5 Rbe2 Rf4 Rc2 Bd1 Rce2 Rf3 Nf7 Rb3 Rb4 Rc8 Rd4 Rb4 Rdd2 Re8 Rb2 Reb8 Ne5 Ke7 Qb6 Rf8 Qf6+ Ke8 Nf7+
QQ4Q1/1QPQ1r1n/qq1Rp1bp/BPB5/K1R5/br3qb1/1Nr3N1/1k6 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 g6 exf5 Kf7 d4 cxd4 f6 Ke6 f7 Kd6 h4 Na6 g4 Bg7 f5 Kc5 f6 Kd6 g5 Ke5 Bh3 Nc5 Bg4 Kd6 Bf5 gxf5 g6 Bf8 Qg4 Ne6 Qd1 Ng5 hxg5 Ba6 Ne2 Bb7 Ng1 Bc8 Kd2 Ke5 c4 Ke4 Kc2 d5 Kb3 a5 g7 a4+ Kb4 f4 c5 h6 b6 d3 b7 a3 b8Q d2 g6 Kd3 c6 d4 b3 a2 Qg4 Kc2 Qb7 d1Q Nf3 d3 Bd2 Ra3 Qgd7 Qe2 Nh4 f3 Nc3 f2 Na4 f1R Rd1 a1B Ng2 Be5 Rh4 Bg3 Nb2 Ra2 Bc3 d2 Rc4 e6+ Kb5 Ba3 f8Q Qb6+ Ka4 Rf5 f7 Nf6 g8Q Nh7 c7 Rf6 Rb1 d1Q g7 Qef1 b4 Qdf3 Re1 Rf4 Re3 Kb1 Rd3 Rf6 Rd6 Rf5 Qa6 Bb7 Qfa8 Be4 f8B Rf7 Q6b7 Bg6 Be7 Q1d3 Qgb8 Re8 g8Q Qdf1 Nd1 Rc2 Nb2 Ref8 Rd2 Q1d3 Bc5 Qdd6 b5 Qa6+ Ba5 Qdb6 Qe7 Rd8 Qee8 Rd3 Qd7 Rb3 Rd6
b3n1BN/B7/3RNp1k/Pq3r2/BpbB1B1b/1n2n3/K1b1R1P1/3b1QQ1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 g5 fxg5 a5 Ba3 axb4 Bb2 Ra5 Bc1 Ra8 e4 d5 Bb2 b5 Qf3 d3 Qd1 d4 Bc1 h6 gxh6 Ra7 Kf2 Rd7 Ke1 Rd5 exd5 Qd6 Bb2 Qc7 Bc1 Qd8 Kd2 e5 h4 b3 c4 e4 a4 b4 h7 b2 a5 Nd7 h5 Bc5 d6 Kf8 h6 Qh4 Nc3 b1B Nb5 Bc2 Nc7 Qh3 Nf3 Nb8 d7 Bb7 d8B Qh5 Ne5 Nf6 Ra2 Ba8 Ne6+ Ke8 Ng6 Rf8 h8Q Na6 h7 Be7 Bb6 Qb5 Rh6 Nc5 Ba7 Bd8 Qe2 Bb3 Rc2 e3+ Kd1 d2 Qg7 Ng4 h8B Bh4 Qf6 Ba2 Qff2 Nb3 c5 Nf6 c6 Bb7 c7 Ba8 Ngf4 Ke7 Qc4 Ne8 Rb2 e2+ Kc2 Qh5 c8B Qb5 Qg1 e1N+ Kd1 Nc2 Bd7 Qa4 Qa6 Qb5 Bc4 Ne3+ Ke2 d1B+ Kd3 Na1 Re2 Bc2+ Kd2 d3 Bhd4 Bab3 Bd5 Bc4 Rf6 Qb8 Ba4 Qb5 Rg6 Rh8 Rf6 Rh5 Rh6 Re5 Ng6+ Kf6 Nh8+ Kf5 Nd8 Kg5 Rd6 f6 Bg8 Kh6 Ne6 Qc6 Qb5 Rg5 Qf5 Qb5 Qff1 Rh5 Ba3 Rd5 Kc1 d2+ Kb2 Nb3 Ka2 d1B Bab2 Rf5 Be5 Bb7 Bbd4 Ba8 Bf4+
Q2RrN1n/q2n4/2Rrpr1p/P1rQr3/5PQB/2k2b1B/q1Q1Q3/4K1N1 b - - 0 1 legal: proof: c4 f5 b4 a5 e3 d5 cxd5 f4 exf4 axb4 h4 g5 f3 g4 Be2 gxf3 Ba6 Be6 Bf1 Bc8 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Bh3 Bc4 Bg4 Bf1 Bc8 a4 Kd7 d4 Kd6 a5 b5 g7 c5 g6 c4 Rh4 h6 Kf2 e6 Ne2 c3 Nd2 c2 Ke1 b3 Rh2 b2 Ng1 b1R Ba3+ b4 Nb3 c1R Rc2 Qb6 Bh3 Bb7 Nc5 Qa7 Nd7 Ne7 Nf8 Nd7 g8Q Re8 g7 Ng6 Qh7 Bc6 Bb2 b3 g8Q Ba8 Rc8 Rc5 Rd8 Bb7 Bc3 b2 Ra4 Ra1 Rc4 b1Q Bb2 Qa2 Rc2 Ne5 Qg4 Nf7 Rc1 Rg8 Qhc2 Nh8 Qde2 Rg6 Bc3 Rf6 Bd2 Kc7 d6+ Kc6 Be3 Kd5 Bf2 Rb1 Bg3 Rb6 Bh4 Nb8 d7 Rd6 Rc8 Ba8 d8Q Nd7 Rd1 Bb7 Rc6 Ba8 Rd3 Bb7 Qa8 f2+ Kd1 f1R+ Kd2 Rf3 Ke1 Re3 Rd1 Rec3 Rd3 Kc4 d5 Kb4 Rd2 Re3 Rd3 Re5 Rd1 Nb6 Rd2 Rdd8 d6 Rd7 Qh7 Rdd8 d7 Kc3 Rd4 Rb8 d8Q Nd7 Qhe4 Rc8 Qc7 Rcd8 Rdd6 Nb6 Rd1 Rd6 Qd5 Nd7 Rb1 Ba6 Rb8 Bd3 Rd8 Be4 Qcc8 Bf3 Qc7 Nb6 Qh7 Nd7 Qc2+
1n1Rq1bb/Nk1P1bNB/R2n2b1/1qp5/1N2N1NK/b1r1pP2/2Q2Q2/2B5 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 d5 cxd5 f5 axb5 fxe4 Na3 a4 Nb1 Ra5 bxa5 Qd6 Qb3 Qd7 Qd1 Qd8 g4 Kd7 d4 c5 b6 e5 d6 Kc6 a6 h5 a7 a3 a8Q+ Bb7 d7 a2 g5 e3 g6 e4 g7 h3 Nd2 h4 Ngf3 e2 Ng5 h2 Ne6 h3 Qc2 Nf6 g8N Bg7 Nh6 Rh7 Ng4 Bh8 Ng7 Ne8 Qa7 Bc8 b7 Qb6 d8N+ Kc7 d5 Be6 Rg1 h1B Nc6 h2 Nb4 Rh3 Bg2 Rc3 d6+ Kd8 d7 Kc7 Qa3 Bf7 Qab2 Nd6 Bh3 Qb5 Rg2 Nc6 b8N Kb7 Rg3 Bg8 Rf3 Bg2 Rf8 h1B Rd8 Bf3 Nf6 Bf7 Bf5 B3h5 Bh7 Bhg6 Ng4 Bg2 f3 Bf1 Kf2 e1Q+ Kg1 B1c4+ Kg2 Bg8 Kh2 Bcf7 Kh3 Qe3 Kh4 Qee2 N8a6 Nb8 Nc6 Qe3 Nab4 Qee2 Rb1 a1B Na7 Qe3 Qa2 Bb2 Ra1 Ba3 Qab2 Qed3 Ra2 e3 Ne4 Qdc4 Qf2 Qe6 Qbc2 Qe8 Ra1 Bb2 Ra5 Ba3 Ra6
4b3/PK2p1P1/3kqBB1/Bn4B1/qp1R4/b3Nrr1/q1qQ1BQ1/N4bR1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ne5 h5 Ng6 hxg6 Ra8 Kf2 Kd7 Kf3 b5 Ke4 h5 d4 c5 a4 f3 d6 c4 Kd5 c3 a5 c2 a6 f2 a7 b3 g7 b4 g6 b2 f6 h4 f7 h3 Bd3 f1B Na3 b1Q Qd2 h2 Ne2 Qb2 Rg1 Qe8 Nf4 Nh6 g8Q Bg7 f8B Bf6 Bg7 Bh4 Bf6 h1Q+ Kc5 Qb7 d5 Be1 g7 Qb1 Bg6 Nf5 Qh7 Qa2 Qhh2 Rh5 Qhg2 Qa6 Rb1 Qe2 Kb6 Rh3 Rb3 Qe5 Rd3 Qe6 Rd4 Rd3 Qg5 Bb7 Qgg2 Bc6 Ka6 Bb5+ Kb6 Rg3 Kb7 Kd8 d7 Ba4 Bb2 c1Q Bg5 Qc2 Bc3 Rc8 Ba1 Rcc3 Bb2 Qce4 Nc2 Rcf3 Na1 Bab5 Ka8 Kc7+ d8B+ Kd6 Kb7 Bf2 Ba5 Be3 Bb6 Qc2 Bc3 Ke5 d6 Ba4 d7 Nd6+ Kc7 Bc6 d8B Nb5+ Kb8 Bd7 Nd5 Kd6 Kb7 Bf4 Ba5 Be3 Bdb6 Bf4 Qde2 Bc1 Qd2 Bb2 Rh4 Ba3 Bf2 Qh8 Bb2 Be8 Bbf6 Qh7 Rd4 Qa4 Bf7 Qd3 Bg6 Qdc2 Ne3+
7N/4n2P/1p1QBrB1/bQnRB1p1/2r1NRB1/k2r4/b1P4K/b1nnB3 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 Be3 axb4 Bh6 Ra4 Bc1 Ra8 g4 h5 gxh5 e5 f4 e4 Be2 Qf6 Bf1 Qe5 fxe5 Ra7 Bh3 Ra4 Bf1 Ra8 Kf2 Ke7 Kg2 d5 a4 g5 h4 b6 e6 Kd6 f6 Kc5 e7 e3 e8B b3 f7 Kb4 h6 b2 h5 e2 a5 e1B h7 d3 a6 d4 h6 d2 a7 d3 Nh3 Ne7 Qe2 d1R Ra4+ Kc5 Nd2 b1N Ne4+ Kd5 Kh2 Nc3 Bd2 Bg7 f8Q Nd7 Bg6 Na2 Nf4+ Kc6 Qd8 Kb5 Bh3 Nc5 Be6 Ba1 Qd6 Rf8 h8B Nc1 Be5 Rf6 h7 Ba6 Rf1 Rc8 a8B Bb7 Ba5 Bd5 Rd4 Ba2 Rd5 Ka4 Rf2 d2 Qb5+ Ka3 Bb7 Rc7 Bbc8 Ra7 Bac3 Ra4 Rf3 Rc4 Bg4 Bf2 Bce6 Bd4 Ba5+ Bdc3 Rf1 Re1 Rf2 d1N Rf3 Re3 Rf1 Bcb2 Be1 Bc3 Bgf7 Rf3 Ng6 Bb4 Nh8 Ba5 Bg6 Rd3 Rf4
bNN2N1b/4N2p/r1br1Bn1/2r5/3RP3/n3Pb2/1k1rpRQ1/3B1NKQ b - - 0 1 legal: proof: b4 b5 h4 g5 c4 gxh4 a4 e5 a5 f5 a6 f4 d3 f3 Kd2 e4 dxe4 Qf6 e3 Qb6 Qe2 Qb7 axb7 fxe2 cxb5 Nf6 b6 Ng8 b5 Bh6 Ra3 Bg7 Ra1 Bf8 Ke1 Ke7 g4 Kd6 f4 Kc5 Kf2 Kb4 f5 Kb3 f6 c5 g5 a5 g6 d5 f7 c4 g7 a4 Nh3 c3 Ba3 c2 Ra2 c1R Bb4 d4 Kg1 d3 Nf4 h3 Be7 a3 Nd5 d2 Rh2 d1B Rf2 Na6 b8Q Nb4 b7 Rc5 b6 Nc2 Bf6 Ne7 g8Q Ra6 Qh2 Bg7 b8N Ng6 f8N Bb7 Nbd7 Ba8 b7 Rd6 Ra1 a2 b8N Na3 N7b6 Bc2 Nc8 Bd3 Qh1 Bb5 Bg2 Bbc6 Nd2+ Kc2 Re1 a1R Nde7 Rd1 Nf1 R1d2 Qe6 Rg8 Qg4 Bh8 Rd1 Rg7 Bf3 Kb3 Qgg2 Rf7 Bg5 Rff6 Bg4 Kc2 Be6 Kb2 Bb3 Rfe6 Rc1 Rf6 Rc4 Rfe6 Rf3 Rf6 Bd1 h2+ Kf2 Rfe6 Rd4 Rf6 Qhg1 Rfe6 Bf6 h1B Q1h2 Ree5 Kg1 Ree6 Qg5 Bg2 Rf2 Bf3 Qh1 Ba4 Qe5 Ra6 Qeh5 B4c6 Q5h2 Rd6 Q2g2
1q1n2rR/1n2B3/1Q1qpr2/8/P1pr1nQ1/2RP1nB1/N1N2K1k/qB1BB3 b - - 0 1 legal: proof: f4 a5 e4 g5 c4 f5 b4 axb4 h3 d5 cxd5 fxe4 g3 Bg4 f5 Bg7 Nc3 Be5 Nb1 Bf4 gxf4 Bf3 Qb3 g4 Qc2 g3 Qd1 Bg4 hxg4 Ra7 Ba3 Ra6 Bc1 Ra8 a4 Kd7 g5 Kd6 d3 h5 g6 c5 f6 b5 g7 e6 f7 b3 f8Q+ Ne7 g8B b2 f5 Ke5 d6 e3 f6 Kf4 d7 g2 f7 Kg3 Qd2 h4 Ra3 b4 Ke2 h3 Ke1 h2 Qe8 b3 f8B c4 Bf7 e2 Qd1 Rg8 Nf3 g1N Nd4 Nc8 Nc3 b1R Bd2 b2 Bh5 Nd6 Nc2 Nb7 Be7 Nh3 Na2 Nc6 Rc3 Nf4 Bg4 Qb6 Qb8 Ncd8 Qc7 Qd6 Qb6 Rb8 Bg2 Rc1 B2f3 b1Q Bh5 Kh3 Kf2 e1N Be2 Nf3 Be1 Rc8 Bh4 Rc5 Be7 Rd5 Bh4 Nc6 d8B Rd4 Bdg5 Ncd8 Be7 Ng5 Bef3 Qbb4 Qe2 Qb8 Qe4 Q4d6 Bd1 Nf3 Na3 Rg7 Bc2 Rg8 Bb1 Rd1 Nc2 Rc1 Rg1 h1Q Rg6 Rd1 Rh6 Kh2 Rh8 Rc1 Bd2 Rcg1 Be1 R1g6 Qf5 Rf6 Bg4 Nd2 Bd1 Nf3 Qg4 Qb4 Be2 Nc6 Bd2 Qc1 Bd1 Q4d6 Be1 Qb2 Be2 Qa1 Bd1 Ncd8 Bg3#
n4R1N/3bkpn1/P1R1B2K/3Q1Pp1/3n3R/B2NqbR1/1qq2nbR/1Q6 b - - 0 1 legal: proof: c4 h5 d4 e5 Kd2 a5 Ke1 d5 Nf3 b5 Qb3 e4 Qd1 Ra6 Ng1 Re6 Qa4 Re7 Qd1 Re5 dxe5 d4 b4 axb4 g4 hxg4 e3 g5 Bd2 d3 Bc1 Bc5 Qf3 Ba7 Qd1 Bd4 exd4 Rh6 Be2 Rd6 Bf1 Rd5 cxd5 Ba6 Ba3 Bb7 Bc1 Bc8 a4 c5 f4 e3 h4 b3 f5 d2+ Ke2 b2 h5 c4 d6 g3 Kf3 e2 Kg4 e1Q e6 g2 d5 b4 h6 b3 Kh5 c3 h7 c2 h8R Bd7 a5 Kf8 e7+ Ke8 a6 Qa5 Nf3 g1N Rh2 Qf2 Ne1 Qb5 Nd3 Qg2 Nc3 b1B Ra3 b2 Ne2 Nf3 Nef4 Nd4 Ng6 Qg1 Rh7 Qe3 Nh8 Nf6+ Kh6 Nh5 Rc3 Qa4 Rc6 Ng7 Rh4 Ba2 Rh2 b1Q Ba3 Qbb4 Qb1 c1N Be2 Qab3 Bd1 Q3c3 Bb3 d1B Rh4 Qc2 Bc4 Bc8 Bb3 Kd7 e8R Bf3 Bc4 Qbb2 Rf8 Nce2 Rh2 Nf4 Rh4 Nh3 Bb3 Qe8 Bc4 Kd8 d7 Nf2 Bb3 Qc5 Bc4 Ke7 d8R Nd7 Bb3 Nb6 d6+ Kf6 d7+ Ke7 Be6 Na8 Rh2 Bad5 Rh4 Bg2 Rh2 Bdf3 Rh4 Bb7 Rb8 Bc8 Rb3 Kf6 Rh2 Qcc2 d8Q+ Qe7 Qd5 Bd7 Ne5 Qec5 Re3 Ke7 Nd3 Bh5 Reh3 Bhf3 Rg3 Qcb4 Rb6 Ne8 Rd6 Qbd2 Rc6+ Nd6 Kg7 Qe2 Nb4 Qe3 R7h4 Ne8+ Kh6 Ng7 Nd3+
1rRB1B1b/3BK1B1/Q1R1Pp2/r1Br2Nk/4pr2/rQr1P2q/2N4r/2q5 b - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 dxc4 g5 e5 g6 f6 f5 Be6 fxe6 Qe7 Ra3 Qd6 Ra1 Qd8 h3 Ke7 Qc2 Nc6 Qc3 Nh6 Qb3 Nf7 gxf7 g5 h4 g4 Qc2 Nd4 Qd1 Nf3+ Kf2 Ng5 hxg5 Qd5 Ke1 Qd8 d4 h5 Kf2 a5 Ke3 c5 Ke4 c3 Kf5 e4 b4 c4 d5 g3 b5 a3 g6 h4 g7 a2 b6 h3 b7 h2 b8B a4 Nf3 a3 Bh6 c2 Kg6 c1R Qa4 g2 Bc7 c3 Bb6 Rb8 Qa6 g1R+ Bg2 c2 e3 Rgd1 Bf1 Qd6 Bc4 Qg3+ Ng5 Qh3 Bb5 Kd6 Bc6 Ke5 d6 Rd5 Be8 Rf1 d7 Rc8 g8Q Rf4 Rf1 h1R Rc1 Bg7 Qf8 Rc6 Qb4 Rh2 Qb3 Rf8 Ba7 Bh8 Bg7 Rcc5 d8B Rc6 Bdb6 Rg8 Bd7 Rb8 f8B Rcc5 Kf7 Kf5 Rf1 Kg4 Ke7 Kh5 Bd8 c1R Rd1 Ra5 Rd3 Rcc2 Rc3 Rc1 Rc8 Rcc2 Nc3 Rc1 Rb1 a1R Nb5 a2 Na3 Rc7 Rd1 Rcc5 Rd4 Rc3 Nc2 Rg1 Qf1 a1Q Qa6 Qb2 Bab6 Rga1 Rdc4 Qc1 R4c6 R1a3 Bc5
b1Q3Rb/bQpbBB2/1P4n1/Qpb2k1K/1q3qN1/3q1Q2/2P4R/1q1Q3N b - - 0 1 legal: proof: g4 h5 d4 hxg4 f4 Rh7 b4 Nh6 e4 Rh8 f5 Rg8 f6 exf6 e5 Nc6 e6 Ne5 dxe5 Rh8 Qd3 Ng8 Qd4 Bd6 Qd1 Bf8 a4 g5 a5 Bc5 b5 a6 Ra4 Ba7 b6 Bb8 Ra1 Rh3 Be3 Ra7 Bc1 Rb3 bxa7 Rb5 Bc4 Rb6 Bf1 Rc6 Ba3 b5 Bc1 Rb6 axb6 a5 Ke2 Ke7 a8Q d5 h4 f5 h5 d4 h6 a4 h7 a3 h8Q a2 Qh4 f4 Qa3+ Qd6 Nd2 f5 Kf2 f3 Kg3 f2 Qa8 f4+ Kh2 f3 Kg3 d3 Qe4 Qb4 Qee2 Ba7 Ne4 d2 Ba3 Bd7 Rc1 a1B Nh3 Bd4 Nf6 Bc5 Bg2 f1Q Rh2 f2 Qf3 Qd3 Qh5 f1Q Nf2 Bd4 Nh1 Bb2 Qe1 d1B Qe4 Be2 Qb7 Bc3 Ra1 Qc1 Bh3 Qce3 Rg1 Qf4+ Kg2 g3 Ng4 Kf8 e7+ Kg7 e8Q Ne7 e6 Ng6 e7 Bb2 Nh6 Kf6 Qea8 g4 e8Q Bc3 Qed8+ Ke6 Qf8 Bh8 Qfc8 Kf6 Re1 Bd1 Re8 Be2 Rg8 Bd1 Kg1 g2 Kf2 g1B+ Kg2 g3 Be6 Bf2 Kh3 g2 Qg4 g1Q Bf7 Qbc3 Bf8 Bc5 Be7+ Ke5 Bc4 Qb4 Bf7 Nf8 Kh4 Ng6+ Kh5 Qge1 Qf1 Bf3 Qg2 Be4 Q2f3 Qeb1 Qg1 Bd5 Ng4+ Kf5 Qgd1 Bc6 Qa6 Be4 Qa5 Bc6 Qab8 Ba8 Qbb7
3Bb3/2b1B1Rq/5Q1b/1pnN1P2/q4k1B/P2B2r1/1prpKB1Q/3nNR2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 f4 Kf7 h4 Kf6 d6 b5 h6 g5 h5 e5 h7 b3 a3 g4 d7 b2 h6 g3 Qb3 g2 Nd2 d3 Nc4 e4 Nf3 g1Q Nh2 e3 Nb6 e2 Be3 Qg7 Bf2 Ne7 Qc2 Na6 Rg1 Nd5 Nf3 Rg8 h8B Nc3 h7 Nc5 Qd2 Qe7 d8B Nd1 Rb1 Bd7 Nd5+ Kf7 f6 Ke6 f7 Kf5 Rg3 Qd4 Bf6 Bh6 f8B Rc8 h8Q Qh7 Bh4 Be8 Bfe7 Qa4 Qf6+ Ke4 Rg1 Rg3 f5 Rc6 Ne3 Kf4 Qc2 Rh3 Rg7 Rg3 Kd2 Nd7 Ne1 Rc3 Qb3 Nc5 Qd5 Rc1 Qh1 Rc3 Qh2 Rc1 Nf3 Rc3 Ke1 Rc2 Nd5+ Ke4 Rg8 Nc3 Be3 d2+ Kf2 Rh3 Rg7 e1B+ Kg2 Bg3 Bf2 Bc7 Be2 Ne6 Kf1 Rg3 Re1 Nd1 Bc4+ Ne3+ Ke2 Nc5 Rf1 Nd1 Ne1 Rd3 Nb4 Rg3 Bd3+ Kf4 Nd5#
1bQn2q1/k1B3NR/pqr4R/3N4/p1r3Pp/1R1Brn2/b1RQ3P/2K3R1 b - - 0 1 legal: proof: b4 b5 d4 c5 bxc5 d5 c4 g5 cxd5 e5 f4 gxf4 a4 bxa4 dxe5 Qe7 Nc3 Qc7 Nb1 Qd8 Kd2 Kd7 e4 Kc7 g4 Kb7 e6 f5 d6 h5 d7 f3 c6+ Kb6 c7 a6 e7 f4 e8Q f2 e5 f3 e6 h4 e7 Nh6 Ra3 Ka7 Nc3 Nc6 Rb3 Nf7 Bd3 f1Q Nge2 f2 Nd5 Nfe5 Nd4 Qg1 Nf5 f1R Ng7 Qb6 Rg1 Rf4 Qe2 Bb7 c8R Rh6 Kc2 Rf3 Bf4 Re3 Qd2 Nf3 Bc7 Rf6 Kb1 Rf4 Kc1 Rc4+ Rc3 Rb8 Rc2 Ra8 Rb8 Qc8 d8R Qe6 Qb4 Qg8 Rd6 Nd8 Rh6 Bc8 Qd2 Be6 Qc6 Bf7 e8R Bd6 Re7 Bg3 Qe8 Rc6 Nb4 Ba2 Nd5 Qb7 Bd6 Rc4 Nf5 Nf7 Qc6 Nd8 Reh7 Qc7 Rb5 Rc8 Ng7 Qb6 Rb3 Rc7 Qd7 Bf4 Qc8 R7c6 Bf8 Bc7 Bd6 Bb8 Bc7
1b2rBNr/5qBp/p2R3p/Bk2Pn2/1BR3Q1/5n1q/B2QN1rP/5Kb1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 a4 a6 a5 b5 axb6 Nc6 b7 Na7 bxc8N c6 Ne7 Rb8 Nf5 Rb5 Nh6 gxh6 Qc2 Ra5 Qd1 Rc5 d4 Kd7 e4 f5 b4 f3 g4 f4 d6 Ne7 e5 Qc7 b5 Qd8 b6 Rc2 d5 c5 g5 c4 g6 c3 b7 Rb2 b8B c2 g7 Ng6 g8Q Nh4 Nd2 Rb6 Ra4 Qf6 Bc4 f2+ Kf1 Qf7 Qgg4+ Nf5 Ba2 Rc6 Ba3 c1B Bb4 Rc8 Ne4 Be3 Qd2 Nc6 Ne2 Nd4 Rg1 Nf3 Nf6+ Kd8 d7 Bd6 Ba7 Kc7 Bac5 Rce8 d8B+ Kb7 Rg2 Bb8 d6 Kc6 d7 Kb5 Bda5 Bd4 d8B Be3 Rg1 Bd4 Kg2 f1R Bf8 Rd1 Rh1 Bg1 Ng8 Rf1 Bf6 Rf2+ Kh3 Rg2 B6g7 Be3 Rd1 Bg1 Bfe7 N3d4 Bef8 f3 Ba3 f2 Rc4 f1Q B3b4 Qe1 Qc1 Nf3 Rd6 Qc3 Qd2 Qd3 Qh4 Rg5 Qg4 Qa3 Kg2 Rg6 Kf1 Qe3 Qh5 Rg2 Qg6 Ne1 Bc5 Qh3 Bcb4 Nf3 Qg4
n1Q2R2/QPQ1n2B/3b2pk/r1p1p3/1NQ1R2B/1Q1Nrb2/P1b2K2/b2q4 b - - 0 1 legal: proof: e4 d5 b4 f5 exf5 h5 c4 h4 cxd5 h3 Na3 b6 Qc2 Be6 Qc5 Bd7 Rb1 Bc8 b5 bxc5 Rb4 a5 gxh3 axb4 h4 Na6 h5 Nb8 f4 Kf7 h4 e5 d4 c6 h6 c4 f6 Kg6 f5+ Kh5 d6 c3 b6 c5 h7 b3 d7 b2 f7 b1B b7 c2 f6 Ra7 d5 Nh6 d6 Qe7 d8Q Qe6 d7 Qc6 Qa5 Qa6 d8Q Bd7 Kf2 Bc6 Ne2 Kg6 h5+ Kf5 Nf4 Kg5 Nd3+ Kg4 Bg5 c1B Bh4 Bd6 f8Q Bd7 f7 Nf5 h6 Kh5 Qdc7 Ne7 Qg8 Bc2 f8R Bg4 Qc4 Bf3 Qb3 Rg8 h8Q Bb2 h7 Nd7 Be2 Qc6 Re1 Kh6 Qab6 Ra8 Qa7 Qa4 Bf1 Bc3 Re4 Ba1 Bh3 Nb6 Bf5 Qb4 Qc4 Qb1 Qb3 Qd1 Qc4 Bb3 Nc2 Ba4 Ncb4 Bc2 Rc8 Rf8 Qhg8 Rf6 Rf8 g6 Be6 Rf7 h8Q+ Rh7 Qab8 Ra5 Qa7 Na8 Qf7 Bg4 Qf3 Bh5 Bg8 Bg4 Qh3 Be2 Qhc8 Bf3 Qf6 Rf7 Qfe6 Rf5 Bh7 Rf4 Rd4 Re4 Qf7 Re3 Re4 Bg4 Qb3 Bf3 Qfc4
n3k1N1/n3p1n1/1Nb1bQQ1/q1P1B1bB/6b1/1BP2rRp/1KR1p1B1/7B b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Kd2 b5 f4 d5 a4 h5 g4 h4 f5 h3 a5 d4 c3 e3+ Kc2 e2 a6 b3+ Kb2 b4 f6 d3 a7 d2 g6 Qd7 g7 Qe6 g5 Qf7 g6 Rh6 Bg2 Na6 Nf3 Bg4 Ra2 Nc7 Nh2 Rd8 a8B Rd3 Rg1 Rf3 Bd5 Na8 Na3 Qe6 Bh1 Qb6 Rg3 Qa5 Nc4 Be6 Qc2 d1B Nb6 Bg4 Qb1 Bc2 Bf4 Bcf5 Qd3 Be6 Kb1 b2 f7+ Kd8 Be5 Nf6 g8B Ne8 g7 Rg6 Kc2 b1B+ Kb2 b3 Bh7 Bc2 g8B Bh6 f8Q Bg5 Qf6 Ng7 Be4+ Ke8 Bd5 Bgf5 Ng4 Bb1 Nh6 Bg4 Qc4 Be4 Qd3 B6f5 Bb7 Bc6 Bc4 Be6 Ng8 Bcd7 Be4 Bc6 Bed5 Rf2 Bdg2 Rf3 Kb1 b2 Bb3 Be3 Kc2 b1N Kb2 Na3 Qd2 Rh6 Qd3 Bg5 Be4 Nb5 Bg6+ Bf7 Bh5 Rg6 Ra1 Bfd5 Rc1 Na7 Rc2 Bde6 Qdxg6+
4bQ1K/1Q3b1p/R1Nrn3/r2p1q2/1k1P2rp/3BPq1B/1N2r2R/1RRR4 b - - 0 1 illegal: No possible last move
4N1Rb/kp2n1r1/r1Qb3B/3pP2K/2Q2Q2/1PQ1RN2/p1Qb1B1n/3bn3 b - - 0 1 legal: proof: f4 c5 d4 e5 fxe5 Qf6 dxc5 Qe6 g4 Qxa2 Nd2 h5 Bg2 f5 Nb1 f4 Be4 Qe6 Bf3 Qf5 gxf5 Rh6 Bg4 hxg4 Ra4 Rh3 Ra1 Rh8 Kf2 Kd8 h4 Kc7 c4 g5 e4 a5 f6 d5 e6 g3+ Kf3 a4 Kg4 g2 h5 a3 c6 Kb6 b3 f3 c7 f2 h6 f1N f7 a2 c5+ Ka6 h7 Ng3 c6 Nh5 Rh3 Ba3 f8Q Bd6 Qf4 Ng3 Na3 Nf1 Nf3 g1B Nc4 Nd7 e7 Nc5+ Kh5 g4 e8Q g3 Qc2 g2 Rg3 Ne7 Rg8 Bf5 c8Q Nh2 c7 Nd3 Qc6+ Ka7 Bd2 Bf2 Re1 g1B Re3 Ne1 e5 Bh4 Bc3 Bf6 Bd4+ Bc5 Qc3 Bc2 Nd6 Bd1 Ne8 Bf2 Qc2 B2h4 Qh3 Bhg5 c8Q Bh6 Qf1 Bhg5 Qfc4 Bg7 Rf8 Rg8 h8B B7f6 Q4c3 Rg7 Rg8 Bh6 Re2 Bhg5 Bf2 Bh6 Qcg4 Bhg5 Qfc4 Bd2 Re3 Bd6 Qgf4 Kb8 Bh4 Ra6 Bg3 Ka7 Bf2 Rg2 Bg7 Rg1 Bh6 Bh8 Nc7 Rg7 Ne8
BrR3Q1/2nb3K/R2ppQ1n/2N1n2k/1PB2N1n/B1pB4/P5q1/1qqB4 b - - 0 1 legal: proof: h4 b5 e4 g5 b4 gxh4 e5 a5 bxa5 b4 e6 fxe6 c3 e5 Ba3 e4 Bb2 Bb7 Bc1 Bc8 d3 b3 d4 Ra7 Bb5 Rb7 Bf1 Rb4 cxb4 Bh6 Na3 Bg7 Nb1 Bf8 Bg5 c5 Qd2 c4 Qd1 Bg7 Bc1 Be5 Rh2 Bd6 Rh1 Bc5 dxc5 Qc7 Bd3 Qb6 Bf1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 g4 b2 g5 e3 a6 e2 c6 e1Q a7 h3 a8B h4 c7 h2 Qb3 h3 Bd3+ Kh5 Kf5 Bb7 c8B Qe8 f4 Qe3 g6 Qd2 g7 Qg2 Nd2 b1Q Ne4 Bc6 Ne2 Na6 Ba3 Nc7 Nc5 d6 Rc1 h1N Rc3 Qc2 Rc1 Nf2 Bcb7 Bb5 Bf3+ Ng4 Qb2 h2 Rb3 Nf6 g8B Nd7 Qf6 h1N Nd4 c3 Rg1 Bc6 Qg7 Nf2 Bc1 Qh2 Ra3 Kh4 Ra6 Ne4 Ba3 Qhe2 Bgc4 Ng5 Qg6 Qe3 Bd1 Qg8 Ne2 Qb1 Qe8 Qd5+ Kg6 e6 f5 Nf3 f6 Nh6 f7 Qec1 f8Q Nde5+ Kg7 Rg8+ Kh7 Bd7 Qf5 Rf8 Rg8 Qe4 Qf7 Rb8 Rc8 Qg4 Qe8 Qg2 Qf6+ Kg4 Qed8 Nh4 Qg8+ Kh5 Nf4#
2k2N2/1p1B2QK/1n2p3/3pRB1n/P3rbb1/pq2RRN1/QRb3PR/4r3 b - - 0 1 illegal: No proof kernel
Bn1B2Q1/2RB1Bbq/3B2pr/3p1PbN/3pr1p1/2kP1Q2/r2R1N1b/7K b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 c5 g4 h5 Qe2 hxg4 Qd3 Rh4 Qd6 Rh8 Qd4 cxd4 Ke2 e5 Kd1 Nc6 Ke1 Nce7 Bh3 Bb7 Bf1 f4 f3 Nf5 exf5 e4 Bg2 e3 Bf1 Be4 fxe4 Rh7 Bd3 Rh5 Bf1 Rh8 h4 Kf7 c4 Kf6 b4 Ke5 c5 a5 c6 a4 h5 d6 c7 e2 Kf2 e1B+ Kg2 a3 c8B a2 b6 g6 b5 Rh7 h6 Nf6 d3 Bc3 b7 Qe7 b8Q Ne8 b6 Qf6 b7 Qh8 Bd7 Bd2 Rh2 f3+ Kh1 f2 Nc3 Bg7 Nd1 Qg8 Bg2 f1R Nf2 Rh8 h7 Bdh6 Bg5 Nc7 Rc1 a1B Bd8 Ra2 Qa8 Bg5 b8B Na6 Rc7 Kf4 e5 Ke3 e6 Kd2 e7 Bc3 e8B Re1 Bf7 Ba5 Qf3 Re4 Ngh3 Bb6 Nf4 Ba7 Rb7 Kc3 Nh5 Bc5 Ba7 Ba3 Bc5 Nb8 Ra7 Bac1 Rc7 Bcf4 Qe3 Re6 Ba8 d5 Qf3 Re4 Bd6+ Kb2 Nh3+ Kb3 Rd2 Bh2 Rb7+ Kc3 Nf2 Qe8 Ra7 Qe7 Rb7 Re8 h8Q Rf8 Qh7 Rh8 Qg8 Rh6 Bfe6 Bf8 Ra7 Qh7 Bf7 Bg7 Rc7+
R7/B4kb1/6b1/N2q1pN1/QKBnpp1q/pNQR1P2/Pq4N1/2N2r1r b - - 0 1 legal: proof: c4 d5 cxd5 c5 g4 h6 b4 Na6 bxc5 Nb8 g5 Nd7 f3 Ne5 f4 Nf3+ exf3 hxg5 Qb3 gxf4 Qc2 Bh3 Qd1 Bc8 d4 b5 Kd2 f5 Kc3 a5 h4 e5 d6 g5 d5 e4 c6 a4 h5 a3 c7 g4 h6 g3 d7+ Kf7 h7 g2 d6 Be7 Qa4 Kf8 Nd2 Nh6 Ne2 g1Q Rh2 Ba6 c8Q b4+ Kb3 Qg6 Qc3 Qh5 Rb1 Rg8 h8N Bf6 Ng6+ Kg7 Rb2 Bb5 Nh4 Ng4 Rb1 Rh8 Ng2 Ne5 Ra1 Qa5 d8N Nc6 d7 Rb8 Nf7 Kf8 d8N Bg7 Nb7 Rd8 Nc4 Rd1 Be3 Qd8 Nc5 Qd5 Ng5 Ke7 Ng1 Qh3 Bd3 Rf1 Rd1 Qg3 Rh6 Qg4 Rf6 Rh1 Ne2 Qh4 Rf7+ Ke8 Ra7 Kf8 Nc1 Ke8 Ra8+ Ke7 Kc2 b3+ Kb1 b2 Kc2 Qg8 Kb3 b1Q+ Qb2 Qd8 Na5 Qd5+ Bc4 Qa1 Qc2 Kf6 Rd3 Qb1+ Kc3 Qb2+ Kd2 Kg6 Nc5b3 Kf6 Ba7 Nd4 Na1 Be8 Na1b3 Qb1 Kc3 Qb2+ Kb4 Bg6 Qc3 Ke7 Ne6 Kf7 Ng5+
1Q6/7B/3b1RrP/1Npb3R/1PN1BpR1/2nq1Rpp/qR6/1QK2knn b - - 0 1 illegal: No proof kernel
1q2Bn2/1QN1p3/R1P1brQ1/BpKB1bb1/5p2/P1n1B1R1/1p2kb1B/6N1 b - - 0 1 legal: proof: g4 a5 b4 axb4 f4 d5 d4 b5 Bd2 h5 Bc1 g5 gxh5 g4 e4 c5 exd5 cxd4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 fxg5 Bd7 Nd2 Be6 Nb1 Bc8 Kd2 Kd7 Kd3 Kd6 c4 Ke5 h4 f5 h6 g3 h7 g2 d6 b3 g6 b2 g7 Nh6 g8B Qe8 h5 Ng4 h6 Bd7 c5 Qh5 c6 Qh3+ Be3 Nh2 Qc2 Be6 d7 Nf3 d8B Nd7 Be2 Qh2 Nc3 Ng5 Nd5 Ne4 Ba5 Nc3 Nc7 Bg7 Bd1 Nf8 Bh5 Bf6 Be8 Bg5 Bgf7 Rg8 h8Q+ Rg7 Qg8 Rg6 h7 Rf6 h8B Qf4 Rh3 Qg3 Ne2 g1B Qb1 Qh2 Rg3 Bf2 Ng1 f4 Qd1 Qg2 Qg6 Qd5 Bg8 Qd8 Qa4 Qb8 Bg7 Bh3 Bd5 Be6 Qa3 Bf7 Qc5 Be6 Qb6 Bf5+ Kd2 Be6 Qb7 Bf5 Bh8 Be6 Kc2 d3+ Kb3 d2 Kb4 d1B Kc5 Bf5 Bc4 Ke4 Bd5+ Kd3 Bg7 Rf7 Bgd4 Bg4 Rc1 Bh3 a3 Ne2 Rc4 Nc3 Ra4 Rf6 Bb4 Be4 Ra6 Be6 Ba5 B4f5 Nh3 Be1 Bg1+ Kd2 Bde3+ Ke2 Bh2 Bf2 Ng1+
2n2RB1/p2r1b1N/1qRrpBp1/np3B2/Q2B1B2/6pQ/2N1PPk1/3bK3 b - - 0 1 legal: proof: b4 c5 c4 b5 g4 e6 g5 Qb6 g6 cxb4 a4 d5 cxd5 Be7 a5 Bd8 axb6 Bf6 h4 fxg6 h5 g5 h6 g6 Ra2 g4 Ra1 Bg7 hxg7 Ba6 Qb3 Bb7 Qd1 Bc8 d4 Kf7 d6 Kf6 b7 Kf5 d5 h5 d7 g3 d8B Kg4 d6 b3 d7 b2 Ra5 h4 Bdg5 h3 d8Q h2 Na3 b1B Nf3 Bd7 Bcf4 Nc6 b8B Bc2 Bf6 Rh7 Bbe5 Be8 Ng5 Bf7 Ra6 Nge7 g8B Na5 Rc6 Nc8 Bd4 Rb8 Qf8 Rb6 Qh6 Rg7 Qa1 Bd1 Nc2 Rh7 Qa4 Ra6 Rc5 Rd6 Rc6 Rg7 Bg2 Rh7 Be4 Rg7 Rf1 h1Q Nh7 Qh4 Rg1 Kh3 Bf5+ Kh2 Rh1+ Kg2 B6e5 Qd8 Bf6 Qb6 Rh4 Be8 Rg4 Rgd7 Qh3+ Kg1 B4g5 Bf7 Rf4 Nb3 Rf3 Na5 Bf4 Rd5 Bd2 Re5 Bfg5 Red5 Bg4 Be8 Rf8 R5d6 Bgf6 Bf7 Bc1 Rd8 Bf5 R8d7 Qh4 Kg2 Bf4 Nb3 Qh6 Na5 Qh3+
1Q6/1Bp1p1n1/4ppk1/1RKNp1Bn/p4q1P/2P4r/q3QnNN/1N1R3N b - - 0 1 illegal: Other
1Q1nqq1Q/r4Rr1/nQ2N2q/4b3/n3bB2/N1P1Q2b/P2bQ3/k1bKRB2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 f4 Kf7 h4 Kf6 h6 e5 h5 b5 h7 d5 h6 g5 Qe2 d3 Ba3 g4 Bh3 d4 Bb2 g3 Qg4 g2 Qd1 e4 Rh2 b3 Qd2 e3 Nc3 e2 Qd1 b4 Qb1 d2+ Kf2 d1N+ Ke1 d3 Na4+ Nc3 Rh1 d2+ Kf2 d1Q Kf3 e1B+ Ke3 Na6 Ne2 Q1d6 Bc1 b2 Nc5 b3 Rf1 Qe8+ Ne6 Bg7 Nd4 Na4 Ke2 g1B Nb5 Qdf8 Na3 Ra7 Kd1 Ne7 c3 Rg8 h8Q Bd2 h7 Bge3 Qd3 b1B Qe2 b2 Rf3 Nc6 Bf1 Nd8 Rf2 Kf7 f6 Kg6 f7 Be4 f5+ Kf6 Rf4 Ke5 f6 b1Q Rf3 Qbb4 Rf2 Qfd6 f8Q Qdc6 Qf7 Qbf8 Qg6 Kd5 f7 Be5 Qhf6 Rg7 h8Q Bd7 Qgg5 Qb6 Nc5 Bh3 Qfg6 Qf6 Ne6 Bf4 Qg1 Kc6 Q6g5 Qh6 Q5g3 Kb6 Qge3+ Ka5 Qg6 Qc5 f8Q Bg5 Qff7 Qcf8 Qb7 Bgf4 Qb8 Bg5 Rf7 Bgf4 Bb2 Bc1 Qeg1 Bfd2 Qge3 Be1 Nd4 Nb6 Q3d3 Ka4 Nac2 Bcf4 Bc1 Nd7 Qgb6 Ndc5 Ne6 Be3 Bd2 Bg5 Kc1 Bgf4 Ne3 Ka3 Kc2 Na4 Rd1 Bh4 Re1 Bhf6 Kd1 B6g5 Nf5 Be3 Nd6 B3f4 Nb5+ Kb2 Qg3 Ka1 Na3 Nc7 Be3 Na6 Bd4 Bc1 Be3 Bgf6 Bg5 Bef4 Qgg1 Bfd2 Bf4 Be5 Qge3
1nRR2K1/R3bR2/nR3QB1/r1n2P1n/1Bbqq1N1/1nbr3P/3rN2k/1Q6 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kf7 Ke3 Kg6 Kd4 Kh5 Ke5 Kh4 d4 a5 f4 g5 b4 c5 d6 g3 b6 g2 h3 Kg3 b7 e3 f5 e2 d5 e1N b5 g4 b6 c4 d7 a4 Ke6 c3 Kf7 e5 d6 c2 Na3 e4 Nf3 g1R Ng5 e3 Bb2 c1N Rh2 e2 Qd2 Nb3 Qc2 Nf6 Ne6 Be7 Rb1 Ra5 Bc3 Nc5 Bb4 Rg2 Nc4 a3 Nf4 a2 Ne3 a1N Qa2 Qc7 d8R Ned3 d7 e1B Be2 Bc3 Rc1 Rh6 Qb1 Nh5 Kg8 Rd6 Bf3 Nca6 Ne2+ Kh4 Rhh1 g3 Ng4 Ndc5 Bd5 Rh2 Bf7 g2 Bg6 g1Q Rf8 Qc6 d8Q Qe3 Rf7 Rd3 Qd6 Nab3 Qf6+ Qg5 Rc2 Be6 Ra2 Bc4 Rd1 Qe4 Rdd2 Nbd7 b8R Rf2 Rf8 Ndb8 b7 Qd4 Rc8 Qe4 Ng1 Kg3 Ne2+ Kg2 Rdb2 Qge3 Ra3 Q3d4 Rd2 Rf1 Rb2 Rfd1 Ra4 Nbd7 b8R R1d2 Ra8 Ndb8 Rd8 Nbd7 Rac8 Ndb8 Ba3 Na1 Rb6 Nab3 Bb4 Nc7 Qc1 Rb5 Ra8 N7a6 Ra7 Ra5 Qb2 Kh1 Qb1+ Kg2 Nh6 Kh2 Ng4+
2B3nQ/1K1R3b/2NbPb1n/1RB1RN2/Q3R3/qP1b3q/1rn2qR1/kr3b2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 g5 c5 d6 a5 d7 f5+ Ke5 a4 b6 f3 d5 h3 b7 h2 d6 f2 g6 f4 g7 a3 Nf3 h4 Ne1 h3 Rg1 h1N Qd2 Kb3 Kd5 c4 e4 c3 e5 h2 Rg6 a2 Rg2 c2 Qd4 f3 Be3 c1Q Nd3 Qf6 d8Q Bf5 e6 Na6 d7 Rb8 Na3 Bd6 Ne5 Bh7 Nb5 Ng3 Nc6 h1Q Qc8 Qhh6 d8R Qh3 Rd7 Nf5 Qg4 Qfh4 Bc5 Nfh6 Qf4 Qc3 Re1 a1B Re5 Ka2 Qa4+ Qa3 Nbd4 Kb1 Bc4 f1B Nf5 f2 Rg4 Bd3 Rge4 f1B b3 Qf2 Qd8 Ra8 b8R Bd4 Rb5 Ka1 Nb4 Bc3 Kc6 Ra7 Kb6 Rc7 Nc6 Nb4 Qe8 Nc2 Qh5 Rc8 Kb7 Ra8 Rb4 Rf8 Ba6 Rf6 Qh4 Rg6 Rb5 Rg2 Rd5 Bf6 Rde5 Rg1 Qh5 Bg2 Qe8 Rb1 Qd8 Bgf1 Qf8 Ne7 g8R Rb2 Rg2 Rg8 Rh2 Rg1 Qh8 Neg8 Rg2 Bfe2 Kb6 Rgb1 Bc8 Bf1 Kb7
1r1knBK1/qP3Qnr/2Bq1QqN/3r1RQP/n5QR/5b2/5Nr1/2r1b1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
2r1B1bb/1Pb2Rr1/r6N/2KB1n2/r1B2qnk/Q1r1B2Q/2r1NRBP/7r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 b4 g5 e4 a5 c4 d5 b6 f5 e6 Kf6 e7 f4 e8B g3+ Ke2 d3+ Kf3 g4+ Kg2 Kg5 b5 a4 e5 d4 b7 a3 e6 a2 b6 d2 e7 d3 c5 Bg7 c6 Ra4 c7 Kh4 Qf3 d1R Qe2 d2 Nh3 f3+ Kg1 g2 Kf2 g1R Ke3 f2 Bf7 g3 e8B g2 Bb2 Nd7 b8Q Qf6 b7 Ne7 Qa8 Rc1 Nc3 d1R Bd5 Rd2 Qf3 Rdc2 Ne2 Ne5 Bd4 Be6 c8B Bg8 Bce6 Ng4+ Kd3 Ra6 Ng5 Qf4 Be3 Nf5 Nf7 Be5 Rb1 a1B Rb2 Bc7 Bc4 Ra4 Bed5 Rh6 Ra2 Rha6 Nh6 Bh8 Qa7 Qg5 Ke4 Rc3 Qc5 R1c2 Qa3 Qf6 Bdf7 Qg5 Kd5 Qf4 Kc5 Ra8 Nd4 Rc8 Bd5 Ra6 Be2 Rd1 Bf1 g1R Ne2 Rd4 Bg2 f1R Rb2 Ra1 Ra2 Re4 Rb2 Re7 Ra2 Rgd1 Rf1 Rg7 Rb2 Rd4 Rf2 Re4 Rb6 Rd4 Rf6 Rdd1 Rf7 Rh1 Qb4 R1a4 Qb2 Rb3 Qa3 Rbc3 Qh3+
3r3Q/NB2QN2/1n1Pr2q/4RkB1/qb1n2r1/P1bR1Br1/K1b3B1/n2q3B b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 e4 Kd7 g4 f5 d4 h5 Kd2 c5 Kc2 b5 Kb3 f3 a3 f2 d6 Ke6 d7 c4+ Ka2 h4 e5 c3 g6 h3 g7 h2 g5 f4 d5+ Kf5 e6 f3 g6 c2 e7 b3+ Kb2 b4 e8B Qh4 d8Q Ra4 Ba6 f1R Bab5 f2 Ne2 Ne7 g8B Rg1 g7 f1R Bc4 Nd7 Bg5 Rg3 Bgf7 Re1 g8B Nc6 Bh5 Nb6 Nec3 Re6 Qe2 Nd4 Rd1 h1Q Nd2 c1B+ Kb1 b2 d6 Bg7 Ka2 b1N Nf3 Nd2 Nb5 N2b3 Na7 Bd2 Ne5 Ba6 Bd5 Bd3 Qh2 Bc2 Bb7 Qg4 Rab1 Na1 Bec6 Bf6 Nf7 b3+ Kb2 Ba5 Rd3 Bb4 Re1 Qd1 Qe2 Qh2 Bhf3 Qh6 Qe7 Bg7 Qh2 Bf6 Ne5 Bg7 Bf7 Rd8 Bh1 Qg4 Bcf3 Nc6 Bh5 Bc5 Rdd1 Qf6 Ba8 Bb1 Bfg2 Qg6 Kc1 b2+ Kd2 Bc2 Nf7 b1Q Bb7 Qb5 Kc1 Bc3 Rd3 Rae4 Rde3 B5b4 Rd3 Qa4 Ree3 Qe2 Bhf3 Nd4 Qh8 Reg4 Re4 Qh6 Ree3 Bd2+ Kb2 Bdc3+ Ka2 Qd1 Re5+
5NR1/B3kqP1/1B1b1r2/1NBqnPRn/1b2q1B1/3Q1b2/r1b2K2/n1Qr3B b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 b4 a5 f4 h5 g4 d5 c4 e5 c5 a4 g5 a3 c6 h3 f6 e4 f7+ Ke7 f5 e3 c7 h4 g6 h2 g7 d3 b6 h3 b7 a2 b5 d4 b6 e2 Be3 d2+ Kf2 d3 Na3 Nf6 Qc1 d1R Nb5 d2 Nf3 Rh6 Nfd4 Qd5 Rg1 h1Q Ne6 h2 Rg5 Nh5 Bh3 Nc6 b8B Bb7 c8B Rf6 Bg4 Ne5 Ba7 Qhe4 Bd4 Bc6 b7 h1Q b8Q Qb3 Rb1 a1N Bb7 Qed5 Bdb6 Qhe4 Qc8 Qa2 Qc2 Qac4 Qd3 Qb3 Bb8 Ra2 Ba8 Bb7 Qc1 Bc6 B8a7 e1B+ Kf1 Kd7 Bb7 Bd6 f8B Ke8 Be7 Qbc4 Nf8 Qf7 Ba8 Qcd5 Nd4 Ba4 Nb5 Bc2 Rb3 Bc7 Bb4 Bd6 B4c5 Ke7 Ra3 Qb7 Nh7 Qb4 Bb8 Qc6 Bb7 Qbc4 Ra8 Qf3+ Kg1 Qff4 Bh1 Qfe4 B8a7 Qcd5 Qca3 Rb1 Rb8 d1B Rg8 Bb4 Kf2 Bf3 Nf8 Rd1 Qc1
nrq1QKnn/RR4B1/1R4Nn/2k5/4rRQP/1r3b2/P1B3nb/N1nR3b b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Kd4 g5 f4 c5+ Ke4 e5 d4 b5 h4 c4 f6 g3 f5 c3 f7 g4 f6 g2 Qb3 c2 Be3 c1N Bf2 g3 Be1 Bb7 Kf5 e4 Kg6 e3 Qc2 b3 Be2 b2 Nh3 g1N Bf3 e2 Qe4 b4 Qg4 b3 Be4 g2 Bc3 e1N Nd2 b1B Nf4 b2 Bc2 Ngf3 Nb3 g1N Rh3 Bh6 f8R Ng5 f7 Ng2 Rd3 N1h3 Rd1 Qc7 Rd8+ Qd7 f8R Na6 Rb8 Nf2 Rf7 Bc6 Rb6 Qc8 Rfb7 Nf7 Rf1 Bg5 Kg7 Rb8 Ng6 Nc7 Ra7 Bd8 Kf8 Na8 Rd1 Rh7 Rbb7 Nh8 Rf1 Ne4 Rf4 Ng3 Rb6 Rc7 Rbb7 Nf5 Rb6 Kd7 d6 Bf3 d5 Rcb7 Bg7 Rc7 Bd1 Bbe4 Bc2 b1R Rbb7 Rb2 Rb6 Rcb7 Rb1 Rc7 Na1 Rb3 Qg3 Nfh6 Qg4+ Bf5 Raa6 Rc4 Ra7+ Qb7 Rb2 Re4 Rb1 Kc8 d7+ Kc7 Rb2 Bf6+ d8R Be5 Rb1 Bd7 Rb2 Bc6 Rb1 Ne2 Rd1 Nc1 Rc8+ Kd6 Re8 Kc5 d6 Bd5 d7 Qa6 d8Q Qc8 Ree7 Bd6 Qe8 Bc6 Rf7 Bh2 Reb7 Re7 Rh1 Ne1 Qa4 Bfe4 Rhf1 Bh1 Qe4 Ng2 Qg4 Bf3 Rd1 Re4 Rf4
2n2K2/4Q1R1/n3PB1B/q2Q4/BbN4q/q2N4/qB1r1RPn/2Bbqkqr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 h5 b4 a5 b6 c5 b5 f5 b7 a4 b6 a3 d6 h3 d7 h4 Ke6 a2 Kf7 f3 d5 f2 d6 h2 Be3 f4 Bd2 f3 Bb4 h3 Bd2 Ne7 Bh6 Na6 b8B Bb7 Bc7 Nc8 Na3+ Kc3 e4 c4 Rb1 a1Q e5 Qa2 e6 Ra7 Be2 f1N Qd5 f2 Nf3 Ba8 Rg1 h1Q b7 Nh2 b8B f1Q Rb7 Qe1 Ne5 Be7 Rf1 Qg1 Nd3 Bf8 Rf4 Kd2 Bd1 c3 Ba4 Ke2 Nc4 c2 Re4+ Kf1 Re2 c1Q Ba5 Qc7 Bc3 Qca3 Bb2 Qca5 d8B Be7 d7 Bb4 Bdg5 Qh4 d8Q Qe1 Re7 Rd7 Bgf6 Bb7 Qd6 Bf3 Qd5 Qh4 Bbf4 Rd6 Re4 Bd1 Re2 Rh7+ Kf8 Qe1 Rg7 Qh4 Qc5 Rd5 Ne1 Rd2 Qce7 Ng4 Nc2 Qhf2 Bbd4 h2 Ne1 Rb2 Bc1 Rd2 Nd3 Qe1 Bdb2 h1Q Bf4 Qh6 Be3 Qf4 Qd4 Rh1 Qd5 Qff2 Bf4 Qh4 Bh6 Nh2 Rf2+
bn1bN3/BrnB4/2PP1B2/1rN1K2k/q1R5/r3BQn1/Q2n4/1R1n1bBr b - - 0 1 illegal: No proof kernel
1b6/nqP3N1/b2RrQ2/1kB1BrqB/2b3b1/2r2B1b/P1N3bQ/1KBR3n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 b5 g4 h5 c4 e5 Kc2 d5 f4 Kd7 g6 Kc6 g7 b3+ Kb2 h4 g5 h3 g6 b4 f6 d3 f5 e4 f7 d4 c5 e3 f6 d2 Qc2 d1B Qe2 h2 Bd2 d3 Be1 d2 Bh4 Ne7 g8B Nf5 g7 Ra3 Bf2 Rh5 Bh3 Ng3 Nf3 Bd6 f8B Ba6 f7 Rf5 Bg4 Qg5 Nh4 Bf4 Rf1 h1B Bd6 Bg2 f8B Nh1 Be5 Bc4 Bg1 Kb5 Bf3 Nc6 Bf7 Na7 g8Q Bh3 Qg2 e2 c6 e1R Bgc5 Bde2 Qg7 d1B Qf6 Bed3 Bh6 B3e2 Bed4 Bb8 c7 Bed3 Qd2 Re6 B7h5 B1e2 Rf2 Bef1 Qf4 Bfg2 Be5 Be2 Kc1 b2+ Kc2 Bef1 Rd2 Rd3 Qh2 b3+ Kd1 Rc3 Rd6 Qg8 Bc1 Qg5 Nd2 Bfd3 Nf1 b1B Ne3 b2 Nc2 Bdf1 Ne3 Bbd3 Nc2 Bg4 Rb1 B2h3 Ra1 Bfg2 Rb1 Rf4 Nf5 Bdf1 Ra1 b1Q Ng7 Qb4 B1e3 Rf5 Kc1 Ka4 Bd2 Qb7 Bde3 Kb5 Kb2 Bfd3 Rd1 Ka5+ Kc1 Ba6 B3f4 Kb5 Kb1 Bc4 Bc1
Kn1qQ3/PrB1q3/4NqN1/BB4b1/q1B2PB1/Q7/1R1q1kr1/bb2qnR1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 g4 e5+ d6 b5 d4+ e3 a4 h5 d5 b3 a5 e4 g6 b4 g7 b2 a6 b3 f3 Kg3 a7 e2 g5 e1Q g6 e3 Qd3 h4 Ra5 e2 Bg2 h3 Ra3 h2 Nc3 b1Q Bf4+ Kf2 Na4 b2 Rb3 Qa2 Bf1 b1Q Rb2 Qba1 Qa3 Ne7 g8B Qd2 d7 e1Q g7 Rh7 d6 Nd5 Ne2 Ne3 Rg1 h1Q Bc4 Qhh4 g8B Bg7 Bge6 Qhe7 Bg4 Bh8 Kb5 c5 Bh2 Bb7 Nf4 Be4 Ng6 Bb1 Be5 Bf6 f4 Bg5 Bfd3 Nf1 Bc3 Rh2 Ba5 Rg2 Bde2 Qec1 Bc7 Qce1 Kb6 Qb3+ Bb5 c4 Kb7 c3 Nc5 c2 Ne6 c1B Bc4 Qa4 Ba5 Na6 Bc7 Rc8 Ba5 Nb8 Ka8 Rc5 Bb3 Rc7 B3c4 Rb7 Bc7 Qde8 d8Q Q8d7 Qe8 Qdd8 Rb4 Qab2 d7 Qbf6 Rb3 Bb2 Rb4 Qc8 d8B Ba1 Rb2 Qcd7 Ba5 Qdd4 Bdc7 Qd5 Bc6 Qdd8 B6b5
3Q2B1/1Q3r2/qr2br2/r1kNP3/3n1R1Q/B2nPR1n/KQnQ2rN/2b3q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kd2 Ke7 b4 f5 g4 d5 c3 h5 Kc2 a5 Kb3 d3 g5 a4+ Ka3 d2 b6 h3 g6 h4 b5 h2 g7 f4 b7 f3 b6 d4 Bb2 d3 Bg2 h3 Ka2 a3 Bf1 f2 Kb3 a2 Qc2 d1R Ba3+ Qd6 Bg2 f1R Bc1 d2 Na3 Rf7 Nf3 Ra5 Rf1 h1Q Nh2 Nh6 g8Q Ng4 Qgh7 Nf2 Bd5 Nd3 Rf4 Nc6 b8Q Rg8 b7 Rg2 Qh4+ Qf6 Rb1 a1N+ Ka2 Nd4 Rb3 Qg1 c4 Rf1 c5 d1R c6 Bh6 c7 Be6 Qg8 Kd7 Qd2 Nac2 b8Q Rf3 Bc4 Kc6 Qgd8 Kc5 Bb2 Rb1 c8Q+ Nc6 Qcb7 N6d4 Rc3 Rff1 Bc1 Rb6 Bb2 Nde1 Rcf3 Nd3 Ng4 h2 e3 h1N Bc1 Nhf2 Nh2 Nh3 Bb3 Bf8 Bd5 Rc6 Qb2 Rb6 Qb7 Qe7 Bc4 Qe8 Bb3 Qb5 Bc4 Qa6 Bd5 Bf5 Bb3 Rff6 Bg8 Be6+ Qb3 Rfg6 Re4 Na1 Rg3 Rf7 Rf3 Rgf6 Ref4 Be7 Qa7 Kc6 Bb2 Bb4 Qb7+ Kc5 Bc1 Bd7 Bb2 Ba4 Nc2 Ba3 Nb4 Nac2 Bc3 Bc1 Bb2 Bb5+ Ba3 Bd7 Qb2 Be6+ Nd5+
nR2n1kb/N1B1K3/Q3BP1b/1R2n1Bn/5N2/Q1bq2PB/3rb1B1/3qn1r1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 b4 a5 c4 d5 f4 e5 f5 h5 b6 e3+ Kd3 e4+ Ke2 a4 b7 d3+ Ke1 h4 c5 d2+ Ke2 a3 c6 h3 b5 a2 b6 h2 c7 d4 Nh3 Na6 b8Q Nf6 b7 Bh6 g6+ Kg8 g7 Ne8 Rg1 h1N Qa4 d1N Qa3 Nb2 Nc3 Nc4 Nf4 Ne5 Rb1 a1B Nb5 Bb2 Na7 d3+ Kd1 d2 Kc2 e2 Kb3 Bd7 c8B e1N Qbd6 e3 b8B e2 Bc7 Ng3 Bb7 Nh5 g3 Bc3 Bh3 Bb5 Bbg2 Rc8 Qb6 Qd3 Rh1 Rd8 Qb7 Nb8 Qba6 Nbd7 Rg1 Ba1+ Kb4 Nb6 Kc5 d1Q Rb3 Bc4 Rb5 Na8 Rh1 N1f3 Rf1 e1B Rf2 Bec3 Rfb2 Rd7 Rb8 Ne1 R2b5 Q3f3 Be3 Be2 Bd2 Qd3 Bc1 Kh7 g8B+ Kg7 Be6 Rf8 Ng6 Rff7 Bg5 Kg8 Nf4 Rd4 Bd7 Rf6 Bc8 Rfd6 Bd7 Rb4 Bc8 Rb1 Be6+ Nf7 Rb4 Bh8 f6 Qh7 Ng6 Nf3 Nc6 Qe1 Ra4 Bc3 Rf4 Rd2 Rfb4 Rc1 Nf4 Qd3 Na7 Qf1 Beg4 N7e5 R4b5 Rb1 Bd7 Qc1 Bc8 Qcc2 Bcg4 Rg1 Bf5 Qd1 Bc8 Ne1 Bce6+ Nf7 Kc6 Bd4 Kd7 Be5+ Ke7 Bc3 Beg4 Ne5 Be6+
1k2N1q1/R4q1r/Q2nP1R1/N1r5/b2P1Nqq/b4Bb1/1b1BKbnN/N4Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 h4 a5 b4 c5 e4 Kc7 h5 g5 e5 f5 e6 f3 h6 f4 h7 a4 Qd3 g3 Nc3 a3 Qf5 g4 Qb1 a2 Bh3 g2 Kf2 c4 Na4 g3+ Ke1 f2+ Kd1 f1Q+ Kd2 f3 Bg4 c3+ Ke3 f2 Nc5 c2 Rh6 Bd6 Rg6 Ra5 Nf3 g1B Nh2 g2 Bd2 c1B Nb3 Nd7 b6+ Kb8 b7 Qd1 b5 Bca3 Bf3 Bg3 d6 Nc5 d7 Qh4 d8N Nf6 Nf7 Nd3 Nd6 Nf4 Ne8 Bd7 Qd3 Ne4 Qf1 Ka7 b8N Nd6 Nc6+ Kb7 b6 Rc5 Nb4+ Kb8 b7 Bc6 Na5 Ba4 Bh5 Qdg4 Nc2 Rf8 h8N Rf7 Qa6 Rh7 Qf1 Qf5 Bf3 Qfg4 Rb1 a1B Rb4 Bd7 Ra4 B1b2 Na1 Bc6 N5b3 Bb5 Ra7 Ba4 Qa6 Ne2 Kd3 f1Q Na5 Be3 Rg5 g1Q Ng6 Bef2 Nf4 Qfh3 Rg7 Qf6 Rg8 Qf7 Rg6 Qhh4 Qc6 Nc3 Qa6 Nd5 Ke2 Ne3 Kd3 Bc1 Ng7 Kc7 Bh1 Qgg5 Rf6 Qd1 Ne8+ Kb8 Bc6 Qdg4 Bf3 Qgg8 Ke2 Ng2 Rg6 Rd5 Qd3 Rc5 Qb1 Bcb2 Qf1 Rc4 Nf6 Kc7 Ne8+ Kd8 b8Q+ Rc8 Qb4 Rc5 Qb6+ Kc8 Qc6+ Kb8 Qa6
7k/5Kb1/2b3Rr/3NBPBB/1n1R2r1/bqrrP2q/n1q1N1Q1/Q2B1bB1 b - - 0 1 illegal: No proof kernel
2B3kn/2BqRbq1/1QP1Rr2/1Q1b1Br1/1b1N4/n3N1Bn/2P4b/K3B1rn b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kd2 h5 Kc3 f5 b4 Kf7 Kb2 a5 g4 d5 e4 h3 c6 d4 g5 f3 b6 d3 b5 a4 e5 d2 b7 h2 b6 f4 Qe1 d1N+ Ka2 h4 Ba6 a3 Qc3 f2 Bf1 h3 Qc5 f3 Bb2 Ra5 Qd6 Nd7 b8B Rh6 b7 Nb6 Qd5+ Be6 Bc7 Qd7 Bc3 Ne7 Ba6 f1R Nd2 f2 Ne2 Rf6 Nc4 Ng6 Rg1 Nh8 g6+ Kg7 Qd3 Bf7 e6 h1B e7 h2 e8Q Rf5 Qb8 Bhd5 Nd4 h1N Rg3 Re5 Re3 Rg1 Qf1 Bc5 Bb4 Rh5 Re7 Bd6 Qd3 Bh2 Qa7 Kf8 g7+ Kg8 Qb3 Re5 Ba5 Ref5 Qb5 Re5 Rc1 Rh5 Kb1 a2+ Ka1 f1Q Bb4 Ndf2 Rce1 Qg2 Bd2 Nc8 Qab6 Nh3 Bc3 Qg6 Bg3 Qh7 b8B Nd6 Bc8 Rg5 Bc7 Qh6 Qb1 Qh7 R1e6 Nb5 Bce1 Na3 Q1b5 Qg6 Kb2 a1B+ Ka2 Kh7 g8B+ Kg7 Bh7 Bc3 Ne2 Bd2 Nd4 Bb4 Ka1 Kf8 Ne3 Qg7 Bd3 Kg8 Bf5
q1b2b2/3r2Pn/B3B2q/bBBQ1b1k/R1r5/1q3N1Q/2rBPRNK/5qn1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 b4 d5 c4 f5 g4 Kf7 Kg2 Kg6 b6 a5 c5 h4 b7 h3+ Kh2 f3 b5 d3 b6 d4 c6 f4 c7 f2 Ra2 f3 Bg2 f1Q Bb2 a4 Ba3 d2 Kg3 f2 Rh2 d3 Bb4 a3 Bc5 Nd7 b8B Rh4 b7 Ne5 Bc6 Nf3 Nc3 Nf6 Bb5 Nh7 Nd5 Ra4 Qb3 d1Q Ne3 d2 Qd5 Rc4 Ng2 Rc2 Bba7 Qb1 b8Q d1R Be3 Qb3 Bac5 Bf5 c8B Rd4 Ra1 a2 Bca6 Rdc4 Qa7 Qa8 Bd2 Qc1 Qad7 f1Q Ne1 Rh5 Rf2 h2 Ng2 h1B Qc8 Nf6 Qcd7 Rh7 Q7e6 Rd7 Kh3 Kg7 g6 Nh7 Qe3 Kf6 g7 Kg6 g8B Qd8 Kg3 Qa8 g5 Kh5 Nh4 Bg2 g6 Bh3 g7 Bg4 Ng2 Bh3 Rb1 a1B Be6 Bc3 Ra1 Ba5 Ra4 Bg4 Nh3 Ng1 Ng5 Qa1 Nf3 Qf6 Kh2 Qh6 Qb7 Be4 Qd3 Bgf5 Qc8 Bb7 Qc6 Bc8 Qcd5 Rb2 Qe3 Rbc2 Nfh4 Re4 Qh3 Rec4 Nf3+
b3n1R1/Knr2qPb/2q5/B3QBn1/N2P1NBk/1r3q2/1q1bb1B1/4QR1B b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 a4 c5 e4 h5 d4 b5 g4 f5 g6 Kf6 a5 Kg5 e5 h4 g7 c4 d6 c3 a6 c2 d7 b3 a7 b2 e6 h3 e7 h2 e8B b4 Bd2 c1Q Nc3 b1B Nb5 b3 Nd6 b2 Ba6 Qc6 Nb5 Kh4 g5 f3 Ke3 f4+ Kf2 Qe7 d8Q Nd7 g6 Rb8 a8B Rh7 Qa5 Nc5 Qe1 Qf7 Bd7 Bb7 Nh3 Nf6 g8B Ne8 Rf1 h1Q Bf5 Bh6 Nc3 Bc2 Ra4 b1Q Be2 Qb2 Ra1 Be4 Na4 Bd3 Rg1 Be4 Kf1+ f2 Beg4 Rg7 Ke2 f3+ Kd1 Bd3 Nf4 Rh7 Qe5 f1B Bc3 Bc2+ Kd2 Be2 Raf1 f2 Rg3 Qhf3 Qb4 Qc4 Bd5 Rc7 Bde4 Qf7 Rgg1 Qh3 Bh1 Qhf3 Rg2 Bc8 Rgg1 Nb7 Qbe7+ Bg5 Ba5 Be6 Bg2 Bd5 Qb4 Nd8 Qc3 Rb3 Qce3 Nb7 Q3e4 Ba6 Qe1 Be2 Bh1 Nd8 Bd3 Qcf6 Bh3 Qg4 Ke3 Be6 Ke4 Qg3 Nd5 Bd2 Nf4 Qg4 Rg2 Qg3 Rfg1 f1N Bb7 Nh2 Rf1 Bc8 Be6 Bd7 Kd5 Bc6+ Kc5 Nf3 Be4 Qf2 Rg5 Bcd3 Bg4 Bb1 Bbc8 Ba8+ Bc6 Bb5 Kb6 Nb7 Ka7 Be2 Bd5 Qc6 Be4 Nh2 Beg2 Nf3 Rf5 Be4 Rf6 Ng5 g7 Qe7 Bcd7 Bh7 Rf8 Qf7 Rg8 Qg3 Bdf5 Qf2 Qc1 Qff3 Qe1+
r2N4/1QR5/1r2Q1n1/qB2b1n1/Q1P4r/br4Rr/bBP1r1N1/b2QQK1k b - - 0 1 legal: proof: g4 c5 f4 h5 a4 hxg4 f5 b5 axb5 c4 d3 e6 dxc4 exf5 Ra3 f4 Ra5 Qf6 Ra1 Qd8 b4 Ke7 e4 Kf6 h4 Ke5 h5 g5 h6 a5 h7 f5 b6 d5 b5 a4 b7 g3 b6 d4 Qe2 d3 Nc3 g4 Qf2 g2 Rh6 g3 Rb1 f3 Rg6 d2+ Kd1 Kf4 e5 a3 e6 a2 e7 a1B e8Q Bd7 Qe6 Na6 b8Q+ Nc7 b7 Ne7 Qfe2 f2 Qf7 Ba4 Rc6 Bb3 Qg6 Ba2 Rd6 Ne6 Qc8 Ng5 b8Q Qa5 Qh6 Ng6 Nf3 g1R Qb5 g2 Qe1 Kg3 Ke2 d1R Nd4 f4 Ne6 Rd4 Rd7 Ba3 Qa4 Rd6 Nd8 Rb6 Qd1 Rh1 Nd5 g1B Rc7 Rh3 Qb7 Kh2 Rb3 Kh1 Rg3 Bh2 Bb2 Rh4 Bh3+ f1R Bd7 Re1+ Kf2 f3 Nf4 Rb3 Bb5 Rh3 Qdd5 Re2+ Kf1 Rh4 Ng2 f2 Qd1 Rh3 Re3 Be5 Rg3 Rh4 Nf7 Rhb8 h8Q Rh3 Qhc8 Rh4 Qe4 Rb6 Qcb7 Nf4 Qe6 Rd2 Qee1 Ng6 Nd8 Rdd3 Rg4 Rdh3 Ke2+ f1R Rg3 Rg1 Qc3 Re1+ Kf2 Kh2 Qcb4 Re2+ Kf1 Kh1 Qbe1
n2B1q1N/R3q1r1/2b3N1/r5Pp/2Bbr1r1/n1QrBP2/2bR2QB/KB3k2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 b4 Kg5 c4 Kf4 f3 Kg3 Kc2 Kf2 Kb2 h5 c5 a5 b6 d5 b5 e5 b7 e4 g5 a4 b6 a3+ Ka2 d3 f6 h3 c6 e3 c7 e2 f7 e1Q Bf4 d2 Be5 h2 Ne2 d4 Qc1 d1B Qb2 d3 Bh3 d2 Bg4 Ne7 Be6 Nd5 Nf4 Na6 b8Q Ra7 b7 Ne3 Qc3 Bg7 f8B Nc2 Be7 Re8 Bc4 Bd7 c8B Nc7 Ng6 Na8 Nh8 Bc6 Bf4 Bd4 Bf5 Qe3 Rg1 h1R Rg2+ Ke1 Qe5 Rh4 b8B Rg4 Be4 Qd6 Bd8 Qf8 Bd6 Qe2 Be3 Kf1 Qg3 Rg7 B6c7 Ne1 Bg6 Bc2 Rh2 d1R Bf5 Qd3 Rd2 Qe2 Qd6 Rg3 Ba6 Bd7 Bf2 Bca4 Rc2 Rg4 Nd2+ Kg2 Nc4 Bdc6 Ne5 Kf1 Neg6 Re5 Rb2 Nc2 Bc4 Re6 Bb3 Qe5 Be3 Qef6 Qh2 Q6f7 Qh4 Q7e7 Bh2 Re5 Qg3 Re6 Bc1 Re2 Bd3 Rd2 Bdc4 Rd3 Kb1 Re1 Ba2 Ree4 Be3 Bb3 Kc1 Bba4 Bb1 Bb3 Raa2 Bba4 Rb7 Bb3 Rb2 a2 Ra7 a1R Rba2 Bba4 Kb2 Bb3 R2a5 Ra4 Rb5 Na3 Ka1 Bd1 Rb2 Ra5 Rd2 Bc2 Qg2+
Nn2qb2/5Nb1/1Bnrb3/1NqQPRQ1/1p2nKN1/2R2N2/1bk2PBr/1b6 b - - 0 1 illegal: No proof kernel
b1r2n1R/3Bb3/KB1RQn2/b3pN1q/5BQ1/k2B1Pq1/2Pn1Bnr/5N1n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 e5 Kd3 Ke7 Kc4 Kd6 b4 h5 g4 a5 b6 h3 Kb5 d3 f3 a4 g5 a3 f6 d2 f7 a2 g6 h2 g7 h4 b7 h3 Na3 Qh4 Bc4 Qg3 Bf1 Be7 f8B Nf6 g8B Rh5 Qe2 d1N Nb1 Nf2 Bf4 N2e4 Qg2 Nd2 Ne2 Rh6 Bh7 Kd5 Kb6 Kc4 b5 Kb4 Bf5 d5 Bd7 d4 Qg1 d3 Nd4 Rh8 Nf5 Rh6 Be2 Rh8 Qg2 Rh4 Rd1 h1N Bf1 h2 Qh3 Na6 b8Q Nc5 Qd6 Bb7 Qg4 Rc8 Qe6 Ba8 Ka7 Rh3 b6 Rh4 b7 Rh7 Bc6 Ncd7 b8B Rh8 B8h6 Nf8 Bc7 Rh7 Ka6 Rh8 Nc3 Ka3 Nd5 Rh7 Rac1 a1B Nde3 Bc3 Bd7 Ba5 Bb6 Nb1 Qgg8 Nf2 Qg4 h1Q Bfg5 d2 Bc4 Qhh3 Rh1 d1N Nf1 Ne3 Rd1 Qhh4 Rd6 Ng2 Bd3 Nd2 Bge3 Rh8 Rh3 Nh1 Bhf4 Qg5 Rh7 Qg6 Bf2 Qe8 Rf7 Rh2 Rh7 Qh5 Rh8
1R1qrNBb/b3Q3/2qR3q/1QB1p2q/r3nk1P/2n1QP2/1KQ2Q2/1b2N1q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 h4 Kd7 b4 Kd6 d4 a5 Kd2 c5 Kc2 g5 f3 g3 b6 g2 b5 c4 b7 c3 b6 a4 Bd2 e3 Be2 a3 Nh3 g1Q Nf4 a2 Ng6 g4 Na3 g3 Bc4 e2 Be3 e1Q Rb1 Na6 b8Q+ Nc7 b7 a1B Qa7 g2 b8Q Nf6 Qb5 Ne4 Qd3 Bh6 Nf8 Bf5 Kb3 e6 Nc2 Qd2 Ne1 c2 Rb2 c1Q Qc2 Qh2 Rf1 g1Q Ka2 Ke7 d6+ Kf6 d7 Qe5 d5 Bg5 d6 Nd5 Bc5 Be3 Rf2 Ndc3+ Ka3 Qdd5 Rd2 Qc6 Kb3 Qed5 Qa3 Ke5 Rd1 Qe7 d8Q Kf4 d7 Ra4 Qdb6 Qd8 Rd2 Qe5 Rd6 Bh7 Rb1 Qh5 Qab2 Rg8 Qf2 Bd4 Qbc2 Bh8 Qa7 e5 Qab6 Bb2 Be6 Ba3 Qa7 Bb4 Qab6 Qd2 Kb2 Ba5 Qa7 Bc7 Bc4 Bb8 Qab6 Ba7 Bf7 Qdg5 d8Q Qgh6 Qe7 Qd1 Nd7 Rd8 Nf8 Re8 Bg8 Qdd5 Rd8 Qdd7 Rb8 Qd8 Rd1 Bg6 Rd6 Nd2 Qd1 Bb1 Qc2 Nde4 Q6a6 Rc4 Qa3 Ra4 Qab3 Ne2 Q3d3 N2c3 Qde3+
q1k2K2/1Qb2NBP/4bn2/2Br2p1/1NRbB3/QBR1q1bb/P2rn2n/7B b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Kg3 b5 Kf4 f5 e4 c5 d4 b3 h4 b2 e6+ Kc7 Ke5 g5 e7 f4 e8B f3 d6+ Kb7 h5 b4 d5 g3 h6 b3 d7 c4 Ke6 f2 Kf7 c3 h7 g2 e5 c2 e6 Nf6 d6 Nc6 e7 Ng4 Qd5 Qc7 d8B Qb6 d7 Nf6 Nc3 b1B Be3 c1B Bc4 f1N Rh3 b2 Nf3 g1B Ne5 Ra5 Bb3 Bf5 Bc5 Bf4 Rc1 b1Q Qg2 Bge3 Nd5 Qe4 Rc4 Bd4 Nb4 Nh2 Rhc3 Bg3 Qb2 Bg7 Qa3 Bh3 Bc7 Qe3 d8Q Qa7 Qd5 Qa8 Bd7 Bf8 e8B Bd6 Bf5 Be6+ Kg7 Rb5 Be4 Kc8 Nf7 Ra5 B7b6 Bc7 Bf8 Rc5 Bh1 Rb5 Qe4 Rd5 Bbc5 Ne7 Bb5 Ng6 Bc6 Nf4 Qb1 Ne2 Qbb2 Rd6 Bce4 Rd8 Bfd6 Rhe8 Be5 Rd5 Qb1 Re7 Kf8 Red7 Qbb2 Ne8 Bg7 Nf6 Ba7 Bde5 Bb6 Rd2 Bc5 R7d5 Qa7 Bd4 Qba3 Rb2 Qb6 Rd2 Qb7+
4nbQ1/2Nq2Pb/6kN/1Rn1r2N/2B4p/NQ1q1R2/1K1bn1PN/rnB2n2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 h5 b4 a5 c4 f5 Kc2 Kf7 e4 d5 e5 f3 c5 a4 e6+ Kg6 c6 h4 c7 d3+ Kb2 f4 e7 d4 e8N d2 b6 f2 b7 d3 b5 f3 b6 a3+ Ka2 Rh5 Qc2 d1Q Nf6 Qd7 Qb3 d2 Rh3 Na6 b8N Nc5 Bc4 f1N b7 f2 Na6 Ng3 b8Q f1N Nf3 Ne2 Nh2 Bb7 c8N Be4 Rf3 Qc2+ Bb2 d1N Nd6 Qd3 Bc1 Bf5 Nf7 Be4 Nfg4 Nf6 Nc7 Ne8 Nf6 Ra4 Nh6 Ra7 Nd2 Bf5 Rb1 Ndc3+ Ka1 a2 Rb2 Ra5 Nb1 Ra6 Na3 Nb1 Q3b7 Be4 Rb5 Ra8 Kb2 a1B+ Ka2 Bd4 Qd8 Be3 Kb2 Bd2 Qd5 Kg7 g6 Re5 Nh5+ Kh8 g7+ Kh7 Nc2 Ra1 Na3 Kg6 Qb7 Bd5 Qda8 Bg8 Qd5 Bh7 Qa4 Re4 Qg8 Re5 Qb3
3bB2q/r1BQ1P2/Q1q2p1r/rB1P1bNn/2BK2n1/5r2/1R1bk1rB/1R2N3 b - - 0 1 illegal: No proof kernel
r1N2Q2/N1q2p1n/3N1PbK/qBNR3Q/1k2PrN1/1nb5/2rR1B1n/5r1r b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 h4 gxh4 Kd2 Ke7 c4 a5 g4 h5 e4 d5 f4 h3 c6 Kd6 f5 Kc5 f6 a4 b6 h4 g5 a3 b7 a2 g6 d3 Ke3 h2 Kf4 d2 Kg5 d4 c7 d3 g7 h3 Nf3 Bf5 c8Q+ Qc7 Ne1 Nh6 g8N Ng4 Na3 Bg6 Nb5 Rh4 Nh6 Kb4 c5 Nd7 b8N Bd6 c6 Be5 Bb2 Nf8 Nd6 Bc3 Rc1 a1N Rc2 Nb3 Be2 Ne3 Ng4 Nf1 Rg1 h1R Rg2 Qd8 c7 h2 Rf2 Rg1 Rf5 h1R Rd5 Nh2 Bf1 Rg2 Nc6+ Ka4 Qe2 d1R Na7 d2 Nd3 Rc1 Nc5+ Kb4 Qf3 d1Q Rcd2 Qc2 Bb5 Rcf1 Qb8 Rgf2 c8N Qa5 Qh3 Rf4 Bc1 Rh8 Qh5 Nh7+ Kh6 Re8 Nb6 Re5 Qf8 Ref5 Nbc8 R4f2 Re2 R5f4 Be3 Qc1 Ra2 Rc2 Rb2 Qd2 Bd4 Qc7 Bf2 Qe1 Ra2 Qa1 Rb2 Qaa5 Ra2 Rcc1 Re2 Rc2 Red2
2Q1b2K/2p1bk2/1R3N2/n1r1q1RR/6n1/P3RQ1B/1RPbBbN1/r2r2qb b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 f5 gxf5 e5 dxe5 h6 Bg5 hxg5 Kd2 b5 Kd3 d5 Kd4 b3 f4 g4 e4 g5 h4 b2 h5 b4 f6 b3 h6 g3 f5 g4 e6 g2 Ke5 d4 a3 d3 e7 d2 f7+ Kd7 e8R g3 f6 Rh7 Ne2 g1B Nbc3 b1B Nd5 g2 Rh5 b2 Nef4 Ra7 Ra2 Ra5 Rg5 Bb7 Be2 Be7 f8Q Rc5 f7 Nf6 Kf5 Ng4 Kg6 Qc8 e5 Nc6 e6+ Kd6 Qg8 Be3 f8R g1B Nf6 Na5 Ng2 Bgf2 Qh8 Rf7 h7 Qd8 Qh1 d1R Qh3 Bc1 Qf3 Bd2 Rg8 Rf8 Kg7 Qd7 Rb8 Qb5 Re5 Qe8 Re3 Bc6 Rb6 Qh5 Ra1 Ba2 Rc1 Bd5 Rb1 Bd8 e7 Qe5 e8B Ke7 Bf7 Be8 Be6 Bdc6 Ra1 b1Q Ra2 Nh6 Bh3 Ng4 Rab2 Rf7+ Kg6 Ke6 Rg7 Be7 Qf8 Qa1 h8R Qb1 Rh5 Qc1 Nd7 Rf4+ Kh7 Rb4 Ra2 Rb1 Kh8 Ra1 Nf6 Qb1 Rg8 Qc1 Rab2 Qb1 Qh6 Kf7 Qhf4 Qc1 Rgg5 Ba8 Qb7 Qb1 Qc8 Bac6 Nh4 Bh1 Qf3 Rg1 Bd3 Qf1 Bb5 Qg2 Bd3 Rgd1 Be2 Qg1 Ng2
RN2qQBk/pR1R2nq/2K1b2b/1r1N2R1/4Pq2/R3bbB1/b1PQ4/3n1r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 Kd3 d5 b4 f5 e4 Kf7 h4 Kg7 b6 f3 b7 f4 b5 g4 b6 g3 Ne2 f2 Nd2 f3 Nb1 g2 Ra5 g1B Ba3 Nc6 b8Q Ne5+ Kd2 d3 Kc3 d2 Kd4 Ng4 b7 N8h6 Nbc3 Ne3 Bd6 Nhf5+ Kc5 d4 Ra3 d3 h6+ Kg8 Qc1 d1Q h5 d2 h7+ Kg7 Bh3 f1B Nd4 f2 Nc6 Bc4 Rh2 f1Q Rg2+ Qg4 Qe1 d1B Qd2 Rg8 h8R Qg6 Rg5 Ba2 Nd5 Bd7 Rh6 Rh8 Qc8 Rb8 Rh7+ Kg8 h6 Bh5 Re7 Nd1+ Qf2 Rh7 Bg3 Rf7 h7+ Kg7 h8R Bg4 Rgh5 Qh7 Qe3 Qf2 Kb5 Qf3 Qd2 Be3 Rg5+ Qg6 Rh7+ Kg8 Qd4 Bh6 Qd2 Rf8 Rhf7 Ng7 Re8 Bh5 Be6 Qh7 Rfe7+ Kh8 Bg8 Be6 Rd7 Qe7 Qd8 Qef7 Qe7 Qfg6 Red8 Rf6 Qf8 Qe8 Rc8 Qg4 Rcd8 Rf1 Rc8 Ra8 b8R Qf4 Rb6 Rb8 Rcd8 Rb7 Ra8 Bf3 Nb8 Bc4+ Kc6 Ba2 Rba6 Rb2 Rb6 Rb5 Rb7
n4k2/1K1QBn2/2rrQQQq/r1b3Nq/2BPQ3/1pR5/NqR3Pb/1b5b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Ke3 b5 Ke4 c5 d4 h5 f4 b3 a4 b2 a5 b4 a6 b3 a7 h3 f6 h4 d6 c4 Kd5 h2 f5 c3 Bh6 e4 Ra6 c2 Qd3 c1R Rc6 e3 Bg5 h3 Nc3 b1Q Na2 e2 Rc3 e1B Nf3 Na6 Kc6 Rh6 d7+ Kf7 Qe4 Qa5 d8Q Bc5 Qd7+ Kf8 Qee6 Qb2 f7 Bg3 Bc4 Nc7 Bd8 Bgd6 Rd1 h1Q Rd2 h2 Ng5 Rf6 Rdc2 Nh6 Rd3 Ba6 Rdc3 Bb5+ Kb7 Be5 Bd5 Bd3 Bc4 Rg6 Qed5 Rd6 Q5e6 Qe1 Qg6 h1B Qge6 Bh2 Qg6 Rc8 a8Q Ra1 Qa6 Qh4 Qb6 Rd5 Qbe6 Na8 Qe4 Qh5 Qge6 Rc6 Qg6 Rdd6 Qge6 Kg7 f6+ Kh8 Qg6 Qa6+ Kb8 Qaa3 f8Q+ Ng8 f7 Rc7 Re2 Qd2 Nc1 Bf5 Nf3 Rcc6 Kb7 Bb1 Qee4 Qe3 Qfe7 Qb2 f8Q Ra5 Rec2 Qd2 Qff7 Nh6 Qfe6 Nf7 Na2 Qdh6 Ng5 Qg4 Qh5 Kg7 Q7f6+ Kf8 Qhg6 Qgh5 Be7#
RqB1r2R/1nNn2R1/3r2kn/q2qbr2/N1P4R/3Qp1B1/brP4K/1R4Q1 b - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 e5 b5 axb5 c4 d3 f6 dxc4 fxe5 Qd2 e4 Qd6 Nf6 Qd1 Ng8 f4 Kf7 Kf2 e5 g4 h5 Kg2 a5 b4 d5 g5 h3+ Kh2 a4 f5 h4 b6 e3 f6 d4 b5 e2 b7 e1N b6 d3 Ra2 a3 Nd2 e4 Ra1 a2 Ne2 e3 Bb2 Bd6+ Ng3 Nd7 b8R Rh5 b7 Be5 Bd4 Nh6 Nb3 d2 Nc5 Kg6 f7 Nd3 Rb1 a1Q f8R Qaa5 Na4 N3c5 Rh8 Qg8 Qe1 d1R Bg2 Rd3 Qg1 Rb3 Bf3 Rb2 Bg4 Ra6 Be6 Rd6 Ra8 Qgd8 b8Q Nb7 Bc5 Qdc7 Qa7 Qb8 Bb4 Nf6 Qb6 Bd7 Qd4 Bc6 Bc8 Nd7 Be1 Bb5 Nb6 Ba4 Nd5 Bb3 Nc7 Ba2 Qd2 Kg7 g6 Rf5 Qd3 Kf6 g7 Kf7 Qgf1 Kg6 Kg1 h2+ Kg2 Bd4 Ne4 h3+ Kg3 Bf6 Nc5 Bd4 g8R+ Bg7 Rg1 h1R Na4 h2 Re8 Bc3 Re4 Bf6 Rf4 Be5 Rg2 Rg1 Qf2 Rf1 Qg1 h1Q Bf2 Qh5 Be1 Qg5+ Kh2 Qd5 Bg3 Qd8 Ne8 Q8a5 Nc7 Rf3 Re4 Rf8 Rh4+ R3f5 Rf2 Rg8 Rff4 Re8 Rfg4+ Kf7 Rg7+ Kf6 Rgh7 Kg6 Rg7+
B1b4q/2R1qrB1/r6N/4Q1P1/pn4kb/1nP1B1B1/b2qbQR1/N2B1n1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 e4 Ke6 g4 h5 Kg2 d5 b4 f5 c3 a5 g6 d3 e5 h4 b6 d2 b5 h3+ Kh2 d4 g7 a4 b7 d3 b6 f3 Ne2 f2 Qe1 d1B Be3 f4 Bg2 f1B Ng3 d2 Nf5 f3 Qf2 Ra6 Nh6 Ne7 Ra2 Nec6 Na3 Nd7 b8B Rh7 g8B+ Rf7 b7 Bb3 Nc2 d1Q Na1 Qe7 g5 Be2 Re1 Nc5 Kh1 h2 Bc7 Qc2 b8B Nb4 Bh7 Qd1 Bc2 Qd2 Bd1 Bd5 Rc2 Ba2 Ba7 Nb3 Bad4 Qd8 Bb8 Bc5 Bd6 Qe7 Bc7 Kd5 e6 Ke4 Bg7 Bd6 Rb2 Bg3 Rg1 Bh4 Bg3 Qf8 e7 Qfd8 e8Q+ Qe7 Ng8 Kf5 Qb5+ Kg4 Qe5 Qc1 Rd2 Qc2 Rd7 Qd2 Qe1 f2 Ba8 f1N Rc7 Rd6 Rg2 Ra6 Nh6+ Kh5 Nf5 Kg4 Rg1 Ra5 Kg2 h1Q+ Kf2 Qh3 Rg2 Ra7 Kg1 Ra6 Bgf4+ Bg3 Qf2 Qh8 Nh6+ Kh4 Kh1 Kh3 Nf5 Bh4 Bg3 Kg4 Nh6+
2nb3Q/1bR1r1kn/2qQr3/P7/npQPQ1BN/1K3RQ1/4r1n1/1NB3bq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 b3 g4 Kf7 d4 b5 Kd2 e5 Kc3 h5 a4 c5 a5 e4 g5 h3 d6 b4+ Kc4 h2 f6 h4 f5 b2 d7 h3 Qe2 e3 Na3 b1N Qa2 e2 Bd2 e1N Qc2 Nc3 Nb5 Ra7 Kb3 Qe8 d8Q Rh6 Nf3 Na4 Nc3 Be7 Rc1 Nd7 Nh4 Nf8 Be2 Nh7 Rf1 h1R Qe4 h2 Qc7 Ng2 Nb1 Qd7 Bg4 Bd8 Rc3 Ne7 Rff3 Re1 Qce5 Kf8 f7 h1Q Qh2 Re2 Bf4 Kg7 f6+ Kh8 Bd2 Rc7 Rc4 Bb7 f8Q+ Ng8 f7 Re6 Rc1 Qc8 Qe8 c4+ Kc2 c3 f8Q Rf7 Kb3 c2 Qfd6 Rg7 Qhg3 Qc5 Rg1 c1B Bf4 Be3 Rc1 Qb5 Rc7 Bg1 Bc1 Qc6 g6 Nf8 Qef4 Ne7 Qf5 Nc8 Qfd5 Rge7 g7+ Kg8 Qe4 Rg6 Nd2 Kh7 g8Q+ Kh6 Qc4 Rge6 Nb1+ Kg7 Qh5 Nh7 Qhb5 Qb6 Qe8 Qc6 Qh8+
1R1b1R2/Q4rrN/QBb1R1pR/KNP3Rn/2rn2n1/n2P2q1/2k5/1B1q1b2 b - - 0 1 illegal: No proof kernel
1BkbbR2/1b3nBN/3B1qpP/3R3r/2P2rBN/4n2B/n2br2q/QK2Q3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 b4 d5 c4 Kd7 Kc2 a5 e4 a4 h4 g6 e5 a3 b6 d3+ Kb3 f3 Ka2 f2 h6 d2 b5 d4 h5 f4 b7 f3 b6 d3 h7 Na6 b8Q Nh6 b7 Nf7 Bb2 Qf6 Qe1 d1N Nh3 d2 Qa7 Be7 b8B+ Bb7 e6+ Kc8 B2e5 Ne3 Ng5 d1B Nd2 Ba4 Rd1 Nb4+ Kb1 Be8 Bed6 Na2 Bh3 Bd8 Rf1 Qf4 Qd4 Qh2 Qa1 Ra5 Bg4 Re5 e7+ Re6 Rg1 f1Q h6 f2 Ndf3 Rf8 Bh5 Re5 h8B Rd5 Bg7 Rd2 Bf6 Re2 Nh7 Ne5 Nfg5 Nb4 Rd5 a2+ Kc1 Rf7 Bg7 Rf5 Nf3 Rg5 Qc3 a1B Kb1 Na2 Bg4+ Rf5 Qd4 Bc3 Nh4 Bb4 Bh3 Bd2 Rg4 Rh5 Rf4+ N3g4 Rf8 Nf7 Rf5 Ne3 Qa1 Qfg1 Bg4 f1R Bh3 Qg5 Rd5+ Bd7 e8B Qf6 Rf5 Bb5 Bc6 Rf4 Bf3 Bd7 Bfg4 Be8 Rd5+
Q3Qn2/b4qR1/B1Pk2Qn/1r2rP2/5n1K/2rbq2Q/4R2p/BNNr1Qb1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 d5 g4 Kd7 f4 a5 Kf2 e5 b4 h5 f6 d3 f7 d2 f5 e4 g5 d4 b6 e3+ Kg2 d3 Kh3 e2 b5 e1Q c5 a4 c6+ Kd6 g6 a3 b7 a2 g7 Nd7 b8Q+ Qc7 b6 Ra3 b7 Rc3 Na3 Qe3+ Qf3 d1R Be2 d2 Bf1 Re1 Bg2 d1R Rh2 Nh6 Rb1 a1B g8Q Bg7 Rb6 Nf8 Rb2 Bd4 Nb1 Ba7 Bf1 Be6 Rhf2 Bc4 Rfe2 Bd3 Qe8 Rh7 b8Q Rg7 Kh2 h3 Rb7 h4 Qa8 Rg4 Qg5 Rb4 Bb2 Rb5 Qfg2 Qce7 Qg6+ Q7e6 Rf2 Qf6 Ne2 Qfe6 Nc1 Re2 Kh1 h2 Qh3 Ree1 Kg2 h1N Re2 Ng3 Qh1 Qf6 Kh3 Nh5+ Qf3 Ng8 Kg4 h3 Re7 Qfe6 Kh4 h2 Qh3 Nf4 Qac8 Rc4 Qa6 Nh6 Bc3 Bb2 Bf6 Ba3 Ba1 B3c5 Rb7 Rc3 Re7 Nd7 f8Q Bd4 Qfg8 Nf8 Rg7 Bdc5 Qb7 Bd4 Qba8 Bdc5 Qgg2 Qf7 Qh7 Qee6 Qhg6 Bg1 Rc2 Re3 Be2 Ree5 Qf1 Be4 Bc4 Bd3 Re2 Re3 Ra2 Rb7 Ba6 Rb5 Qh7 Qe4 Rb2 Qd4 Ra2 Ree5 Re2 Qe3 Qg6+
1QR4Q/1r2Q2P/1PQn1N2/3qb3/Q1Nnqb1p/qr2B1n1/2BKbbR1/7k b - - 0 1 illegal: No proof kernel
2Nr3Q/R5P1/B2N2P1/bq4rN/q4Bp1/3qbNbr/1knn1R1Q/1b1N3K b - - 0 1 illegal: No proof kernel
6n1/b3prP1/QBR1r3/b3bk2/P2n1qB1/1Q4QR/1qNr2q1/1QQbK1N1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 d4 Kf7 a4 Kg6 g4 h5 f4 c5 d6 b5 d7 c4 d5 e3 d6 e2 Na3 c3 Kf2 e1B+ Ke2 b3 Qd2 b2 Qd5 b1Q Rh4 c2 Qb3 b4 Rh3 h4 Be3 c1B Bb6 Be3 Nc2 Qc7 d8Q Bg7 d7 Qb2 Rc1 Rh7 Qf8 Bh8 d8Q Nc6 Qd2 Rf7 Qd1 Bb7 Qb8 Ra6 Qa7 Be5 f5+ Kh7 f6 Kg6 Bg2 Nd4+ Kf1 Qb8 Bf3 Bc3 Be2 Bf3 Qd2 Qf8 Ke1 Qh6 Bc7 Re6 Bb6 Qf8 Qa6 Qh6 Qa2 b3 Qb1 Ba5 Qb4 Rg7 f7 Rh7 f8Q Rf7 Qfc8 Qf8 Rg3 h3 Qcc3 h2 Rh3 h1Q Qbc4 Kg7 g6 Kf6 g5+ Kf5 g7 Qg2 g6 Bg4 Bf1 Bd1 Be2 Qa3 Bf3 b2 Qb3 Qb8 Qa1 b1R Bg4+ Ke4 Qd2 Rb2 Qb1 Ra2 Qdc3 Qb2 Qd2 Nf6 g8Q Kf4 Qh8 Ng8 Qh4 Qf8 Qg3+ Kg5 Bh5+ Kf5 Qdc3 Qh6 g7 Qf4 Bg4+ Kf6 Na3 Nc6 Ba7 Qbc2 Bb8 Ba7 Bc7 Nd4 Qd2 Qc3 Bb6 Qa1 Qdc3 Rd2 Qcb2 Kg5 Rc6 Qa2 Q2c1 Qb2 Nc2 Kg6 Bh5+ Kf5 Bg4+
1RQ1NN2/Q2p1B1K/Qr2Qb2/q1Pq3n/1B1Q1qP1/R3bb2/r7/2rn1k1b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 a5 c4 h5 b4 e5 f4 d3 g4 h3 b6 h2 b7 h4 b5 d2 c5 a4 b6 a3 Qc2 d1Q Qe2 h3 Bd2 a2 Bb4 Qa4 Nf3 Na6 b8Q Bh6 b7 Nc7 Ng5 Nd5 Na3 Ne3 Ne6 Qda5 Qa7 Nd1 b8Q Ba6 Qbc7 Bb7+ Qc6 Bg5 Qd5 Rh6 Qea6 Rg6 Rb1 a1B Bc4 Bh6 Rf1 h1B+ Rf3 h2 Nb5 Bg5 Qdc6 Bd4 Rb2 Be3 Nd6 Bh4 Nf8 Bg5 Kd5 e4 Rg3 Bf3 Rh3 h1Q Ne8+ Ke7 Ke5 Nf6 Be6 Nh5 Bf7 Qg2 Qd5 Rb6 Qd4 Qd2 Ba2 Qb3 f6+ Kf7 Kf5 Qd5+ Qe5 Bf2 Rb1 e3 Rb3 e2 Rg3 Qc4 Qd4 e1R Ra3 Bh1 Rgb3 Bbf3 Rb2 Be3 Rb1 Kg8 Kg6 Qd5 f5 Qh2 Rb2 Qf4 Rbb3 Nf2 Rb2 Rc1 Rb1 Kh8 Rbb3 Nd1 Rb1 Rb5 f7+ Bf6 Rbb3 Rb6 Rb2 Bg7+ f6 Rab8 Ne6 Qdd6 N8c7 Rb5 Bc3 R8b7 Rb1 Rb2 Bd5 Ra2 Ne8 Bf8 Rb6 Be7 Bb4 Qc7 Bc4 Qce5 Rc6 Qd6 Rc8 Qc6 Rb8 Rb6 Ng5 Qe6 f8Q+ Qg8+ Kh6 Bd8 Qfd6 Qe6 Bd5 Qee5 Be4 Qd5 Bg6 Kg8 Qc6 Kf8 Kh7 Be7 f7 Bf6 Qcc8 Ke7 Nh3 Ke6 f8Q Bd8 Qh6 Be7 Qdc4 Ke5 Bf7 Bh4 Qc3+ Ke4 Qhc6 Bf6 Qd6 Bfg2 Qd4+ Kf3 Ng5+ Kf2 Ne6 Bf3 Nf8 Kg1 Qe6 Kf2 Rd3 Kf1 Ra3+
2q2BnN/2P3KN/5NR1/Q2qkBNN/2r4r/1r2np2/1r1bP2n/Rb4Qb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 Ke4 g5 c4 a5 b4 d5+ Kf3 d3 h4 d4 Ke4 g4 b6 f3 h6 a4 h7 g3 b7 a3 c5 g2 c6 a2 c7 d2 h5 f2 b5 d3 h6 Ra3 b6 Nc6 b8N Nb4 b7 Rb3 Nc3 Nc2 Ba3 Ne3 Nf3 g1R Ng5 Bb4 Bh3 f1N Bf5 Nh2 Qc1 Re1 Rg1 d1B Kf4 Ba5 Bf8 d2 Qa3 Bb4 Qa5 Bc2 Rg4 Reb1 Rg2 d1Q Rg1 Ne7 Rg4 Rg8 h8N Q1d5 h7 R1b2 Ng6 Bb1 h8N Be6 Rg3 Qc8 Nf3 Qb5 Bg4 N3f5 Rg2 Bd7 Nd5+ Ke6 Kg5 Nc6 Kh5 Ne7 Ngf4+ Kd6 Bh3 Ne3 Kh6 f5 Nh5 f4 Bf5 Bc6 Nd7 Bd2 Rg1 Rg4 Rg2 Rh4 Kg7 Rc2 Rg1 Rc4 b8Q Ng2 Qba7 Ba8 Qf2 Ne3 Rg4 Bc6 Qg1 Qbb7 Nd5f6 Bce4 Nc5 Qd5 Rg6 Rb2 Ne1 Ke5 Nh7 Bh1 Ne4 Ng8 Nef6 Rb3 Ng2 f3 Ngf4 Bd3 Rf1 a1R Nh3 Rab1 Rc1 R1b2 Ra1 Bb1 N3g5
4QB1n/2P5/1qBqb1rb/NBn1Bp1r/PB3Q2/4rq1R/3kq1b1/2N3KR b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 h4 Ke6 c4 Kf5 a4 Ke4 h6 g5 h7 f5 h5 b5 e3 d5 e6 d3 e7 d4 e8Q+ Be6 c5 b3 h6 g4 c6 b4 c7 g3+ Kg2 b2 Nh3 b3 Qg6 d2 Ba6 d3 Qf1 d1Q Qe8 d2 Ra3 Nd7 Nf4 Qf3+ Kg1 d1Q Nd3 g2 Bb5 Qde2 Qf2 Nc5 Nd2+ Kd5 Qf1 b1Q e4+ Kd4 e5 Kc3 Nc4 Qd6 Na5 Ne7 Bb2+ Kc2 Nc1 Kd2 Qf2 Ng6 Qh4 Rg8 h8B Rb8 h7 Bh6 Bf6 Nh8 Be7 Rg5 Bf8 Rh5 Bc6 Rb4 Qg4 Re4 Qf4+ Re3 Bb5 Bd5 e6 Bc4 e7 Be6 Be5 b2 Rc3 Qbd3 Rb3 b1B Bb2 Qa6 Ba3 Qb6 Bc6 Qd6 Rc3 Nf7 h8B Be4 Be5 Nh8 Qc8 Qc4 e8B Qce2 Bb5 Bb7 Bec6 Ba8 Qe8 Bb7 Rc4 Ba8 Qg5 Bb7 Rch4 Ba8 R4h3 Bb7 Kh2 g1R+ Qg2 Qf1 Qf2 Rg6 Bd7 Be4 Bdc6 Bg2 Qf4 Qff3 Kg1 Bd5 Na2 Bf7 Nc1 Be6 Bb4+
1R1B1N1k/1p6/4P2b/1RbqB2Q/rQqq4/3rPbNB/n2Bqn1n/1B4K1 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 Kf2 c5 g4 h5 a4 f5 d4 Kf7 a5 Kg7 d6 c4 a6 c3 e6 f4 d7 f3 d5 b3 d6 c2 a7 h3 Nd2 b2 Qe1 b1Q Ra4 h4 Nb3 h2 Qb4 h3 Ra5 Nh6 Nd4 Qa2 Rb5 Qc4 Bd2 c1B Bg2 Qb6 d8B Nc6 d7 Bc5 Bc7 Rd8 Be5+ Kg8 Kf1 f2 Be4 Nf5 Bb1 Nh4 Ra5 Nf3 Rb5 Rf8 d8B Rf7 Nf5 Rd7 Nh4 Rd3 Ng6 Bd7 g5 Be8 Nf8 Bh5 g6 Bg4 Qb2 Nb4 g7 Na2 Qb4 Qd6 Bc2 Qdd4 Bb1 Rb8 a8Q Rc8 Qaa3 Ra8 Qab3 Ra4 Qd1 Bh5 Be1 Bh6 e3 Bg4 Ne2 Bh5 Rg1 h1N Bd2 h2 Rg6 Bg4 Ng3 Bh5 Rf6 Bg4 Nd7 Kh7 g8B+ Kh8 Bh7 Bh5 Kg2 Bg4 Qe2 Bh5 Bf5 Bg4 Nf8 Bh5 Kh3 f1Q+ Qg2 Qe1 Qe2 Nf2+ Kg2 Qd1 Bh3 Qdc2 Kf1 Qcb2 Qd1 h1Q+ Ke2 Qg2 Qh1 Qdd5 Qd1 Qh2 Kf1 Qbd4 Qe2 Ng1 Qg4 Nf3 Qf5 Bg4 Qh5 Nh4 Nd7 Nd1 Bb6 Qe2+ Kg1 Nf2 Rf4+ Kh7 Rf8 Nf3+ Kg2 Nh2+ Kg1 Bf3 Rb8 Qh4 Bd8 Qhd4 Nf8+ Kg8 Bd6 Kh8 Be5+
RQ1r3n/p5bK/q1Q2B2/Q1q1nkrN/PbNn4/1B1Q4/6P1/2bb1RrQ b - - 0 1 illegal: No possible last move
Rn6/bkr1N2R/1n3Q2/4b2B/rPbNq2R/2BPnnR1/n2pK3/3Q1n1R b - - 0 1 illegal: No proof kernel
1b5n/r1nR4/1pBP1N2/1PBB3r/b3b2q/2bB1b1R/2rbNQk1/BK1Q4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 Kd1 Kd7 Kc2 Kd6 d4 e5 f4 c5 g4 h5 a4 c4 g5 b6 a5 c3 f6 h3 f7 h2 g6 b3+ Kd3 c2 f5 h4 f6 b2 g7 h3 a6 e4+ Kd2 e3+ Kd3 e2 a7 e1B Bg2 Rh5 Ne2 Na6 Be4 Nh6 g8B Be6 Nd2 b1R Bb2 c1B Kc2 Nc7 Bd3 Bg3 Ra6 Bg7 f8Q+ Qe7 Ra3 Nf7 Rd1 h1B Ba1 Nh8 f7 h2 Rc3 Rc8 a8B Bf3 Bc6 h1B Ra3 Rb4 Rc3 Rc4 Kb1 Ra8 Rb3 Ra7 Ra3 Na6 Rb3 Rc2 Ne4+ Kc7 Rd2 Qh4 Nf6 Bh2 Rd1 Bd2 Qc5 Be4 f8B Bhf3 Be7 Bgh6 Bf7 Bc3 Bf8 Bhd2 d6+ Kc8 d5 Nc7 d7+ Kd8 Qd4 Bd6 Bh6 Ke7 Be3 Bg3 Bg1 Kd6 Qf2 Ke5 d8Q B6f5 Qf1 Bg6 Bc5 Kf5 Qf2 Bgf4 Ne8 Kg4 Nf6+ Kh3 Qg8 Bd4 Ng3 Bc1 Nh1 Bef5 Ng3 Be6 Qg7 Bh1 Ne2 Bge4 Qgg1 Ne8 Bc4+ Bg3 Re3 Bc3 Rd4 B1d2 Qd1 Bhg2 Qde1 Kh2 Red3 Bb8 Qd1 Nc7 Bg8 Bf7 Rg3 Be6 Rdd3 Bf7 d6 Be6 Rg7 Bf7 Re3 Be6 Bd3 Bb3 Bgd5 Ba4 Qfe1 Bh1 Rd7 Bhg2 Rg3 Bgf3 Rh3+ Kg2 Qf2+
BQ1Bn1K1/1qr4n/rQQn3R/3r4/p1b4Q/b4N1r/Q1NPRP2/1n1r2k1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 g4 a5 b4 c5 b6 e3 b7 a4 b5 e2 g5 e1R g6 e4 b6 Ke5 d6 Kf4 Kd5 h3 d7 e3 Ke6 h4 Kf7 e2 g7 c4 Na3 h2 Rb1 h3 Bg2 c3 Qb3 c2 Qd3 Nf6 g8Q Ra6 Qgg6 Rh5 Qc3 Rd1 Rb5 e1N Rb2 Ne8 Qgc6 Rd5 Qh8 Qc7 Nc4 Ba3 Ra2 Kg4 Bb2 c1R Bg7 Nc2 Kg8 Kf4 d8Q Nd7 b8Q Nf8 b7 Nh7 Qe7 Be6+ Qf7+ Kg4 Qd8 Qe7 b8Q Qb7 Qdc7 Kh4 Ne2 Kg4 Re1 h1N Ng1 h2 Nf3 Ng3 Bf6 h1R Bd8 Nf5 Ra1 Nfd6 Re2 Rh4 Bh1 Kh3 Ne3 Rhh5 Q7b6 Rh6 Ng5+ Kh2 Be4 Rh3 Nf3+ Kh1 Qf6 Rb1 Qh4 Rbc1 Ne5+ Kg1 Bh1 Nb4 Nc2 Na2 Rb1 Nc3 Nf3+ Kf1 Rb4 Nb1 Rg4 Rb5 Rg6 Bc4 Rh6 Rd5 Nfe1 Kg1 Be4 Kh2 Nf3+ Kg2 Qff6 Kf1 Qfb2 Kg2 Qa2 Kf1 Ng5 Kg1 Nf3+ Kg2 Qab3 Re5+ Qd5 Qe7 Bf5 Bd3 Nb4 Rc8 Be4 Bc4 Nc2 Kh1 Ng5+ Kg1 Qa2 Qa7 Bh1 Rc7 Bg2 Nb7 Qde6 Rf5 Bc6 Rd5 Qd7 Nbd6 Ba8 Qb7 Nf3+ Kh1 Qdc6 Kg2 Ng5 Kg1 Nf3+
2q3Bb/BBnr1Nb1/Qb6/NR2Q2P/1Bp1r3/2r3r1/2r1bkPK/1n3BR1 b - - 0 1 illegal: No proof kernel
n5n1/b2B1R2/3Nq2k/1p5n/1bP3rB/QR2PnbB/K1N5/1B1BbbQr b - - 0 1 illegal: No proof kernel
N1n1R1Q1/3q3R/K3P1b1/1Q5Q/1r3q1b/2b2PNB/2Qb1p1n/bbBk1rQ1 b - - 0 1 illegal: No proof kernel
1K1B1Br1/Q1rRbN1b/1N1nPRr1/4P2B/2B1kb2/nbQ5/3r1qp1/B4b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 h4 a5 b4 f5 e6 g3 c3 g2 b6 a4 h5 d3 b5 d2 h6 a3 b7 a2 h7 Ne7 b6 Rg8 h8B Na6 b8Q Ra7 b7 Nb4 Na3 Nc2 Nc4 Qb6 Rh7 Qf2+ Nf3 g1R Qe1 d1B Ba3 Rg6 Bd6 Na3 e4+ Kc6 Ke5 f4 Bb4 d5 Nb6 d4 c4 d3 Qc3 d2 Ng5 f3 Nf7 Nf5 c5 Bb3 Bc4 Be7 Rf1 d1R Qa8 a1B b8B+ Bb7 Bc7 Rd7 Bd8 Nd6 Qb8 Ba8 Be2 Rac7 Qa7 Bb2 Bd1 Bc1 Be2 Qe3 Bd1 f2 Bh5 Kb5 c6 Qe1 Rh1 f1B Rh3 Qf2 Rf3 Rg3 Rf5 g5 Rf6 g4 Bc5 Rg2 Bg7 g3 Bd4 Bd1 Bf8 Bf4+ Kd5 Rg1 e5 Rg6 Qd3+ Kb4 Ba1 Bb7 Qd2+ Kb3 Qb4+ Kc2 Qe1 Kd3 Qea5 Ke3 Qc3+ Bd3 Kc5 Bb3 Rg7 Ba6 Rh7 Rb7 c7 Ke4+ Kc6 Bb1 c8B Bf1 Rg7 Rg2 Rh7 Rb8 Ba6 Rh2 Rg7 g2 Bg4 Rh7 Bc4 Rc8+ Qc7 Rh8 Bh5 Rg8 Rh7 Ndb5 Kb7 Rd2 Qc5 Rc7+ Kb8 Nd6 Q5a5 Bbd3 Qa7 Rg4 Qa8+ Ke3 Rg6 Bf6 Nh6 Rg3 Rd7 Be7 Rf6 R3g5 Qb2 Bh7 Nf7 R5g6 Qa7 Ke4 Qc3
2b1RBB1/KN3Q1b/R1p3Br/1bP4r/1B1B1nnP/b4b2/1Qqn2n1/1N2k3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 g5 dxe5 gxf4 Kf2 Ke7 c4 Ke6 b4 Kf5 h4 Ke4 e3 f5 e6 a5 b6 d5 b7 f3 e7 d4 e8Q+ Ne7 b5 a4 b6 d3 Bb2 d2 Qb3 d1B Rh2 g3+ Ke1 c6 Na3 g2 Kf2 f4 Nb5 a3 Ne2 g1N Bd4 a2 Qb2 Kd3 e4 Nd7 b8B Ne5 b7 Nd5 Nd6 Rh5 Qf7 Ne3 Nc3+ Ne2 Nb1 Ng2 Bc7 Rh6 b8B Ra5 Nb7 Ba3 Bd6 Qd7 Be7 Qf5 Bbd6 Bc2 Bb4 Qh7 Nc3 Kd2 Bf8 Rb5 Re1 a1N Rh1 Nb3 Nb1+ Kd3 Rg1 Nd2 Rh1 Ng6 Rh2 Rbh5 e5 Bd1 e6 Ne5 Qa1 Kc2 e7 Kc1 e8B Qc2 c5 Nc3 Re3 Nd5 Bc4 Be2 Qb2+ Kd1 Qh7 Bd3 Bg6 Be4 Qf7 Ng4+ Kg1 Bef5 Re8 f2+ Kh1 f1B Kg1 N4e3 Kf2 f3 Kg3 f2 Rh3 Bg4 Bb3 Ba6 Qf4 Bb5 Bc4 Ke1 Qf5 Ndf4 Bg8 Nd3 Qf7 Bd1 Kh2 Be2 Rf3 Ng4+ Kg3 Be6 Re3 Bd7 Ra8 Be6 Ra6 Bc8 Re8 N2e3 Na5 Bf3 Nb7 Nc1 Kf4 f1B Be4 Bfd3 Bf5 Nf6 Ke5 Ne2 Kd6 Ng2 Kc7 Ng4 Kb8 Bde4 Ka7 Nef4 Be6 Bh7 Bf5+ Ne6 Be4 Nef4 Bg6+
1B1R1bQ1/1K1p1r2/2P1Q2r/b1rbN3/b1q2NR1/2nr1BP1/1n1kQ3/1Q2bQ2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 h5 b4 e5 c4 d3 f4 a4 g3 h3 c5 h2 c6 d2 b6 e4 b5 e3 b7 e2 b6 e1B Bb5 a3 Qg4 d1R+ Nd2 a2 Ne2 Ne7+ Kc5 h4 Nc4 h3 Ne5 Rh7 Bc4 Ba5 Bd5 Rf7 Bf3 Rd3 Kb5 Na6 b8Q Qe8 b7 Nd5 Qd6+ Qe6 b8Q Nc5 Rb1 a1B Rb4 Bc3 Be3 Nb3 Ba7 Be1 Qb7 Nc1 Ka6 Nc3 Qd4 Re3 Qe4 Rd3 Rf1 h1R Qg6+ Ke7 f6+ Kd6 f5 h2 Nf4 Rb8 Bb6 Qd5 Bc7+ Kc5 Ka7 Qc4 Ra4 Re3 Qbb1 Rb5 Bb8 Ba6 Qh6 Nd3 Rb4 Re7 f7 Nb2 f6 Rd3 Ka8 Qa2 Rd4 Qc4 Qh3 Kb4 Qe6 Rd5 Ka7 Bb5 Kb7 Ba4 Rf2 Bg7 f8Q Rc5 Qfg8 Bf8 Re2 Rh7 f7 Rh6 Re3 Rf1 Re2 h1B Rh2 Be7 f8Q Bd6 Qff5 Bf8 Qh3 Rf2 Qf1 Kb3 Qa2+ Kc2 Qb1+ Kd2 Rh4 Qa2 Rb4 Qc4 Rg4 Rf6 Rb6 Rf7 Ra6 Rh2 Ra8 Rh6 Bc7 Nbd1 Rd8 Nb2 Bb8 Qa2 Q4f5 Rh2 Bd1 Bd5 Qe4 Qc4 Bf3 Rh6 Qee2+
1n1b4/1K2RN2/5bN1/bnpRQ1nk/rPb4Q/2Nr4/rP1Bn3/1Bq1N1N1 b - - 0 1 legal: proof: g4 d5 f4 h5 c4 hxg4 cxd5 b5 f5 b4 a3 e6 axb4 exf5 Ra5 f4 Ra6 Qd7 Ra1 Qd8 Kf2 f5 h4 Kf7 d4 Kg6 e4 a5 d6 f3 Ke3 f2 d5 g3 Kd4 f4 Kc5 g2 e5 f3 e6 a4 e7 a3 e8N a2 Qe1 Be6 Be3 Be7 Qe2 Bf6 d7 Nh6 d6 Nf5 Bd2 Qc8 d8N Kh5 d7 g5 Qe4 g4 Nc3 g3 Bf4 Nd6 Ba6 f1N Be3 f2 Re1 a1R Bd2 Bc4 Nc6 Ra4 d8Q Nh2 Nd4 f1N Ndf3 Nb5 Nd6 c6 Qde7 Rd8 Nf7 Rd3 Kb6 Ra2 Bb7 R8a4 Qc7 Bd8 Re2 Bf6 Ne1 Nf3 Qce5+ Ng5 Rh3 Qg4 Bc8 Qf4 Bf5 Bd8+ Kb7 c5 Ngf3 g1B Bh7 Bh2 Ng1 g2 Bf5 Rd4 Rd3 Ng3 Ree3 Rd6 Rd5 Ne2 Q4d4 Qf1 Bb1 Bf4 Nef3 Qc1 Ne1 Kg4 h5 Ba5 h6 Kh5 Nh3 g1B h7 Bg3 h8N Bh4 Ng6 Bh2 Qe8 Be5 Ng1 Bf6 Re7 Rd8 Rf5 Rd5 Qe4 Rd3 Rd5 Bg3 Qd8 Bgc7 Qd6 Bcb6 Qde5 Bd8 Qh4+
r1BNn2R/k1R2nq1/3B2b1/3P2p1/1Bbrqq2/1Q2bQBB/NP4K1/1q4b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 g5 h4 f5 e4 a5 e5 c5 e6+ Kc7 b6+ Kb7 d6 a4 e7 f3 e8B g3+ Ke1 g2 Kf2 a3 h5 a2 d5 c4 d7 f4 h6 c3 h7 c2 Nc3 Qf6 d8B Qg7 Bf6 Na6 Qe1 Bf5 Qd1 Bg6 Be7 Nc7 Bd2 c1Q Bd6 Qc2 Nge2 Nh6 Bd7 Nf7 Rc1 a1Q Nd4 Ne8 Na2 Qe4 B2b4 Qab1 Qb3 Be7 Kg1 f2+ Kh2 f3 Nc6 Rf8 h8Q g1B+ Kh3 Bf6 Qh5 Bd4 Be6 Ra4 Bc8+ Ka8 Qg4 Be3 Nd8 Rg8 b7+ Ka7 Bg2 f1B Rc7 f2 Qf3 Bc4 Kg3 f1Q Rh8 Rf8 Bgh3 Rg8 Qh1 Qff5 Qf3 Qff4+ Kg2 Bd3 Bc3 Rd4 Bcb4 Bc4 b8B+ Kb6 Rc5 Qc1 Bb7 Nc7 Be5 Qh4 Nc6 Qcb1 Bg3 Qhf4 Ba6 Rc8 Nd8 Ne8 Bd6 Ra8 Bac8 Ka7 Rc7+
2K3n1/4N2P/rP1NB1N1/rqR2N1q/4bN2/nn2QrB1/2p1Q1n1/bk1Rr3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 g5 b6 a5 b7 a4 b5 c4 b6 c3 h5 f3 Ke3 g3 h6 c2 h7 f2 Qf3 a3 Nh3 g4 Kf4 g2 Nc3 g1N Qe2 g3 Nd1 a2 Ne3 Na6 b8N g2 Nd7 Nf3 Ne5 g1R Ng6 Nc7 Bd2 Qf6 Rd1 a1N Be1 Ra6 Rh2 Nb3 e5+ Kd7 d6 Ke6 d7 Bb7 d8Q Nh4 Rh1 Qf7 Qg5 Be4 Bg2 Nb5 d5+ Kd7 e6+ Kd6 e7 Kc5 Ke5 f1Q e8N f4 d6 f3 d7 f2 d8N Na3 Bf3 Ng2 Nc6 Ra5 Nf5 Bg7+ Nf6 Ra6 Nce7 Qe8 Ke6 Ra5 Qa6 Qfb5 Nhf4 Kc4 Rh5 f1R Bg4 Rf3 Bg3 Kc3 Kd6 Kb2 Kc7 Qf7 Ne8 Re1 Kc8 Ka2 Ned6 Ba1 Ne3 Kb2 Be6 Qff5 Qh6 Qh3 Rc5 Qh5 Rd2 Kb1 N3f5 Qa4 Qe2 Qb5 Kb8 Nf6+ Kc7 Rha8 Rdd5 R8a6 Kc8 Ng8 Rd1+ Kb2 Nfd5 Ka2 Qhe3 Kb2 Ndf4 Ka2 Rd3 Kb1 Rd1+
nkr3Bq/Br3Pr1/2R5/1BK1Pr1q/6bB/1B1qn1qp/2Q2N1Q/b5NR b - - 0 1 illegal: No proof kernel
1Rr2rQ1/1B1Pb2K/5B2/B2r2k1/1Np3N1/Pn4q1/n1nqBr2/1b1nQ1RB b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 f5 g4 b5 d4 c5 e4 h5 a3 b3 g6 Kf6 g7 b4 d6 h4 e5+ Kg5 e6 c4 e7 b2 e8B h3 d7 b3 d5 h2 d6 Be7 Qd3 Nh6 g8B Na6 Be3 Nc5 Qd2 Ra5 Nc3 b1N Nd5 b2 Qe1 Nc3 Rb1 Na2 Bd4 Nb3 Nb4 Rd5 Be2 Qc7 d8B Bd7 Rd1 b1Q Bg7 Qc2 Rb1 Qd2 Be6 Qb8 Ba5 Bc6 Bh5 Rc8 Bg8 Be8 d7 Bg6 Rb2 Nf7 Rb1 Nd6 Bf7 Ne4 Be6 Nf2 Nh3+ Kh4 Rg1 h1R g5 Rh2 Bg4 Bh7 g6 Qc7 Qc1 Nd1 Nf2 Kg5 Bh3+ Rg2 Ng4 Qd6 Bd4 Rh2 g7 Bg6 Bg2 Rhh8 Nd3 Rhf8 g8Q Qe5 Bh1 Qg7 Kg2 f3+ Kg3 f2 Nb4 f1N+ Kh3 f4 Be5 Rd6 Bed5 f3 Bb7 f2 Bc3 Bd3 Rb2 Qg6 Bg7 Nfe3 Kg3 f1R Rb1 Nb2 Qe1 Rd5 Kh3 R1f6 Kg3 Nbd1 Kh3 Kf4 Kh4 Nc2 Rb2 Qe4 Rb1 Qee3 Rb2 Bf5 Kh5 Qg3 Rb1 R6f7 Kh6 Be4 Rb2 Rff5 Kh7 Kg5 Rb1 Ncd4 Rc1 Bb1 Rc3 Nc2 Re3 Bf6 Re8 Be7 Rd8 Rf2 Re8 Rcc5 Rb8 Rcc8 Bf6+
1B3BQ1/1nP2NQ1/1npR2B1/1N2K3/q1br1P2/kB4rn/1bRb4/q2bn2B b - - 0 1 illegal: No proof kernel
Rq1Q1Q2/2pqB1Q1/R1N1b1Pb/2rB4/NqP2k2/4n3/2QQb1q1/rbK4n b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 Ke7 f4 Ke6 b4 Kf5 c4 d5 e6 h5 g3 a5 b6 a4 b7 e3+ Kc2 e2 b5 e1Q e7 d4 e8Q a3 b6 h3 Qf7+ Nf6 Nf3 h2 Qe2 d3+ Kb3 a2 Kb2 h4 Ng5 h3 Nf3 d2 Bg2 d1B Ne5 Na6 b8Q Qd7 b7 Rh5 Bd5 Nb4 Qg7 Ne4 Nc6 Nc2 Qd2 Nf2 Nc3 Be2 Na4 Ne3 Qa7 Rg5 b8Q Kg4 Rf1 h1B f5 h2 f6 Be4 f7 Nh1 Rf6 Bb1 Qc2 Qd2 Qa5 Qe1 Qad2 Ra7 Qgh7 Bh6 f8Q Rf5 Qhe7 Kg5 g4 Kf4 g5 Ra5 g6 Ra6 Qdd3 Qb4+ Qdb3 Ra8 Qeg7 Ra5 Qd8 Rc5 Re6 Rg5 Re8 Rg1 Qd2 Qa3+ Kc3 Bbd3 Na7 Qb5 Nb6 Be6 Qdd7 Nf2 Rc8 h1Q Qe8 Qd7 Nc6 Rb5 Qef8+ Bdf5 Re8 Qg2 Qc8 Qad6 Ba3 Nh1 Kb2 Q6e7 Rd8 Qee8 Be7 Rc5 Qb7 Rd1 Ra8 Qb8 Qbc8 Rg1 Qbd1 Rf1 Qcd8 Re1 Rc1 Rg1 Rc3 Re1 Rca3 a1Q+ Kb3 Qf6 R3a6 Qc3+ Ka2 Rg1 Na4 Qcb4 Qb3 Ra1+ Kb2 Ra3 Kc1 Ra2 Qfh8 Bb1 Qbc2 Ra1 Qhf8+
1n1Bkn2/P1RrbN2/4P3/1q1r3Q/3rB2p/1n1bq3/B1NB1r2/B2KQ1nR b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 b5 e4 h5 a4 c5 g4 f5 e5 c4 d6 h4 g6 c3 a5 b3 a6 c2 g7 b2 d5 b4 e6 b3 g5 f3 a7 f2+ Kd2 f4 g6 f3 Ra5 Nf6 g8Q Qb6 g7 Nh7 Ra1 Ba6 Na3 b1R Qe1 b2 Nh3 Bd3 Ng5 Qb5 Bg2 f1Q Nf7 f2 Be4 Qg1 Ra2 f1R d7+ Ke7 d8B+ Ke8 d6 Rf2+ Qe2 Qg3 Bf6 Qe3+ Ke1 Ra1 Be5 b1N Bd2 c1N Kd1 Nb3 Rc2 Ra2 Rc7 Rf5 Bf6 Rd5 Nc2 Ra4 Ba1 Rad4 Be1 N1d2 Qh5 Nf3 Bd2 Ng1 d7+ Ke7 d8B+ Ke8 Bf5 Ng5 Qgh7 Be7 Be4 Rf8 g8B Rd7 Qf5 Nh7 Qf2 R7d5 Qe1 Rd7 Nh6+ Rf7 Bd5 Nf8 Bc4 R7d5 Bh7 Rd7 Be4 R4d5 Qg5 Rf2 Qh5+ Ng6 Nf7 Rd4 Rh3 R7d5 Qe5 Nd7 Qg3 Nc1 Qe5 Ngf8 Ba2 Nb3 Qh5 Rb8 Rc4 Rb7 Rc3 Nb8 Rh1 Rbd7 Rc7
1q2B3/3NB1p1/P1rqn1n1/n1nNn2b/1bn1Q1QN/1N1n2P1/3N2R1/k2KR3 b - - 0 1 illegal: No proof kernel
k2b2N1/3RQ3/1PKN1p1q/N4P2/r4Nn1/2Q1B2b/qq3nnN/qBqR1q2 b - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 b5 axb5 g5 Ke2 gxh4 Ke1 Ra6 Qd3 Rd6 Qd2 cxd4 Qd1 d3 Bf4 d4 Bc1 Rd5 exd5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kd7 c4 Kc7 b4 Kb7 f4 e5 g4 h5 b6 h3 d6 e4 b5 h2 g5 a4 c5 h4 g6 h3 g7 e3+ Ke1 f6 c6+ Ka8 c7 d2+ Ke2 d3+ Kf3 a3 Ke4 e2 Kd5 e1N d7 a2 Qe2 d1Q Bd2 Na6 Qf3 Rh4 Ne2 Nh6 g8N Ng4 Be3 d2 Kc6 Qb3 Rg1 d1Q Nd2 Qe7 d8Q Qeb4 Qe7 h1Q Bg2 h2 Nf1 Qdd2 Rd1 a1Q Qh3 Qbb1 Be4 Qda2 Rd7 Nc5 Qg3 Qc1 b7+ Ka7 b8N Ng2 b6+ Ka8 Bb1 Qbb2 Qe1 Nd3+ Qc3 Ndf2 f5 Ba6 Qe4 Be7 c8N Bd8 Nf4 Be2 Qe7 Bd1 Nd2 Be2 Rd1 Qf1 Nd6 h1Q Nf3 Qh2 Nh3 Qf4 Nh2 Qh6 Nf4 Ne5+ Kc5 Bg4 Nh5 Bh3 Nc6 Rf4 Na5 Neg4 Kc6 Ra4 Nf4
3Q1nBN/1r2Nr2/3Bp3/1Br1Pnrb/1R1PK1Q1/2qr1nq1/2B5/k1R2r1B b - - 0 1 legal: proof: c4 g5 f4 gxf4 h4 d5 cxd5 a5 b4 axb4 g4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 Kd7 Kf3 Kd6 a4 Ke5 e4 Kd4 a5 f5 a6 h5 g7 c5 d3 b5 a7 h4 e5 b3 d6 b4 d7 b2 g6 c4 Ra5 c3 Rh2 c2 Bh3 b3 Rc5 Rh5 Qe2 Nh6 g8B Rg5 g7 Qa5 d8Q+ Nd7 Rb5 Qc3 Nd2 b1R Nf1 b2 Bg4 h3 Qe8 Nf8 Rg2 h2 Bh7 h1Q g8B Qh3+ Kf2 f3 Rg3 f4 Ne3 Nf5 Nd5 e6 Bg6 Bb7 Ne7 Rd8 a8B Rd5 Bd2 c1R Qd8 Bc6 Be1 Be8 Bc6 Qh4 Nh3 Bf7 B6h7 Bh5 Rc5 Rd7 Bb5 Rc2 Rc6 Rd1 Bd2 b1R Bc1 Rb4 Ba3 Rb3 Bd6 Ra7 Ng6 Rf7 Nh8 Rdb1 Ba4 Rbb7 Bb5 Rb3 Rc5 Qc4 Rc8 Kc3 d4 Kb2 Bg6 Qb4 Rc4 Qc3 Rb4 Ka1 B6h7 Ne3 Bgf5 Ra3 Be4 Nf5 Bg6 Qg4 Rg1+ Rc1 Bb1 Rc2 Rc1 Qg3+ Kf1 f2 Qg4 Qc5 B6h7 Rd3 Bg6 Rc4 Ke2 f1N B6h7 Nd2 Bg6 Ne3 Be4 Nf5 Bh1 Rcc3 Nf2 Nf3 Nd1 Qc7 Ne3 Rc5 Nd5 Qa5 Rbc4 Qc3 Rb4 N3h4 Ne7 f3+ Kf1 f2 Ke2 f1R Rb3 Qa5 Rb4 Rdc3 Kd2 Nf3+ Ke2 R3c4 Kd3 Rc3+ Ke4 Rd3 Be8 Qa3 Bb5 Qc3 Bc2+
1Q1N2BK/N1Bbn1R1/n3PP1B/k4B1q/2Q4b/r1n4p/4pRqB/1b2q1r1 b - - 0 1 illegal: No proof kernel
r2q4/Q1N2bbR/p4Bk1/1qQ5/qQnr1b1N/P1P1RQ2/1p3Q1r/nB4K1 b - - 0 1 legal: proof: g4 e5 f4 exf4 g5 c5 g6 d5 Nh3 d4 Nf2 d3 cxd3 c4 Nh3 c3 bxc3 hxg6 Ng1 g5 Ba3 g4 Bb2 Qg5 Bc1 Qd8 Kf2 b5 h4 f5 e4 Kf7 e5 g5 e6+ Kg7 e7 a6 e8Q b4 h5 b3 h6+ Kh7 d4 f3 d5 b2 d4 f4 d6 Bf5 d7 Bg7 d5 Nf6 d6 Nd5 Qee2 Ne3 Na3 Nc4 Nb5 Be6 a3 Bf7 Nc7 Kg6 h7 Nc6 Be3 Nb4 Bd4 Nc2 Bf6 Rb8 Qee1 Ra8 Ne2 g3+ Kg1 g2 Nd4 g4 Rb1 Na1 Qf2 Na5 Nf5 Nc4 Kh2 g1R Bd3 Rg3 Rc1 Rh3+ Kg1 g3 Bb1 g2 Qc5 Rg8 h8Q Rh2 Qh4 Re8 Qb3 Re4 Re1 Rd4 Re4 Qe7 Qbb4 Qd8 Kf2 g1B+ Kf1 f2 Re3 Qe8 d8Q Qa4 d7 Nb3 Ke2 Na1 Kf3 f1Q+ Qf2 Qd3 Qde7 Qd2 d8Q Qd3 Qdf8 Qd2 Kg4 f3+ Kg3 Qd3 Qa7 Qdd1 Qec5 Qd2 Qe2 f2 Qf3 f1Q Qf2 Rhh4 Rh3 Bh2+ Kf3 Qfd3 Kg2 Bf4 Kg1 Q3e2 Rh1 Rh2 Qf3 Rf2 Rh7 Rh2 Qf2 Qed3 Qe8 Q2e2 Qe4 Qh5 Qef3 Qh4 Be5 Qd8 Bf6 Qe2 Rd3 Qee8 Re3 Qeb5 Nh4+
1rq1R3/1B1BBn1P/2BP4/1npKQ2k/Q3BRnr/4q1p1/N1b3qb/1b2N3 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 b5 Ke3 g5 Kd4 f5 h4 Kf7 a4 Kg6 e4 c6 h5+ Kh6 d6 f4 e6 b3 e5 f3 d7 f2 e7 b4 e8B g3 a5 g2 e6 g4 e7 g3 a6 b2 a7 b3 Rh4 c5+ Kd5 Bg7 Rf4 Bc3 d4 Nc6 Bd3 f1Q Be4 Ne5 Nf3 g1Q Ne1 Rb8 a8B Qe3 Bb7 Nf7 Ra8 Qg2 Qg4 Qc7 d8Q Bf5 Bec6 Qc8 e8B Rh7 Qe7 Nf6+ Kc4 Rh8 d5 Bd4 Nc3 b1B d6 b2 Bed7 Rh7 Qd1 Ng4 Qe5 Kg5 h6 Kh5 Na2 Bc2 Nd3 b1N Kd5 Na3 Ne1 Nb5 Bb2 Qd3 Ba1 Bg1+ Bd4 Bb1 Qa4 Qe3 Bc3 Bh2 Ba5 Rg7 h7 Rg6 Bd8 Rh6 Bg5 Bg6 Bf3 Bgd3 Be4 Bdc2 Be7+ Ng5 Qb3 Qe8 Bdc8 Kh4 Bf8 Nf7 Ra6 Ra8 Qa4 Rh5 Bf5 Kg5 Ra5 Rh4 Be7+ Kh5 Ra7 Rd8 Ra8 Qd7 Rc8 Rh8 Rc7 Rb8 Rc8 Qc7 Re8 Qc8 Bfd7+
2nKQ1bk/2rn1P2/1RPQ2B1/1pB5/rNp1B3/2bb1n1N/1R3qBr/q3B3 b - - 0 1 illegal: No proof kernel
1R3rq1/NPQ1n2R/3n4/rprnN1Q1/R2R2p1/1P1q1b2/3bR2B/1b1KBk2 b - - 0 1 illegal: No proof kernel
1N2R1bQ/rpq2BQ1/3n1B2/NPP1KR1n/b1R1R2k/1rp5/2R1qq2/n1r5 b - - 0 1 illegal: No possible last move
N1bn1bR1/6p1/nNknN3/B1P5/2Q1B1PK/1pr4N/Rn6/Qnr2Nbq b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Qh5 axb4 Qxh7 f5 exf5 Ra7 Bf4 Ra3 Bc1 Ra8 a4 d5 g4 Kd7 c4 e5 f4 b5 Kf2 e4 Kg3 b3 h4 d3 a5 b4 a6 b2 f6 b3 a7 d2 h5 d1N h6 e3 f7 e2 f5 d4 c5 d3 f6 d2 Nh3 Nc3 Qc2 d1N h7 Na2 Nd2 b1N Qc4 Nc6 Kh4 Qe8 Bg2 Nb2 Nf1 Nge7 Bd2 Nd8 Ba5 Nb4 Ra2 Na6 Be4 e1B+ Nf2 Bd2 Nh3 Be3 Rh2 Rg8 h8Q Bg1 Qh7 Rh8 Rf2 Rb8 a8N Rb4 Rf5 Ra4 Rd5+ Kc6 Qh5 Rg8 Qe5 Qd7 Qec3 Rh8+ Rh5+ Qd5 Rh6 Nd3 Qa1 Nb2 Rh5 Bb7 Rh6 Nc8 Rh7 Nd6 Rh5 Be7 f8N Bc8 Nd7 Bf8 f7 Rh6 Ndb6 Ra3 Bh7 Qh1 Bd3 Re6 Rh8 Re3 Rg8 Ra4 Qe6 Rc4 Bf5 Rc1 Qc4 Rec3 Bc2 Ne8 Bg6 Bd6 f8N Be7+ Kh5 Bd6 Ne6 Bf8 Kh4 Nd6 Be4+
1n1k4/N4PPn/2Rn1p2/3R1R2/1pN1b1BK/1bRr1rB1/2n1RQQb/1q4n1 b - - 0 1 illegal: No proof kernel
5bBN/p1P4P/Q1QR1K2/3Q1nBq/2r4k/Qn1n4/R2nQprn/r3Nb2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 d5 b4 f5 h4+ Kg4 e4+ f3 c4 g5 b6 d3 b7 d4 b5 f4 c5 d2 h6 d3 b6 Kh5 h7 g4 c6 g3 c7 g2 Ne2 g1N Ra2 f2 Na3 f3 Nc2 Qd7 Nf4+ Kg4 h5 Ne7 h6 Nbc6+ Kf6 Nd4 b8Q Ne6 e5 Ba6 b7 Nd4 e6 Nef5 e7 Qb5 e8Q Nb3 Qde2 d1N Ne1 d2 Qc6 Nb2 Ng6 d1R Qd8 Nd3 Bg5 Ra1 b8Q Kg3 Bh3 f1N Qbb6 f2 Qdd5 Nf3 Qbe3 Rg8 h8Q Rd8 h7 Nh2 Qg7 Re8 Nh8 Re4 Qh6 Rc4 Qc1 Qc5 Qa3 Nfd2 Bg4 Qb5 Bh5 Rg7 Bf7 Qa5 Bg8 Bb5 Be3 Rgg4 Qg6 Kh4 Qa6 Rg2 Qe8 Qb6+ Qec6 Qb8 Bh6 Qe8 Be3 Qh5 Bg5+ Kh3 Nc2 Kg3 Rd1 Kh3 Ne1 Kg3 Bh6 Kh4 Bg5+ Kh3 Qde6 Ndc5 Rb2 Rh4 Rbb1 Nc4 Rd6 Nd2 Q2e5 Bf1 Q5d5 Nd3 Rb2 Rc4 Ra2 Kg4 Qe2+ Kh3 Be3 Kh4 Bg5+
3r2N1/1R1B1Q2/1bB2Q2/Pnrpb1nK/B1RPB3/B2pNk2/n1q1b3/b4r2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 e5 fxe5 c4 Qd3 cxd3 Kf2 Ke7 Kg3 Ke6 a4 Kf5 c4 Ke4 h4 b5 c5 f5 h5 d5 h6 g5 e6 b4 e7 b3 e8B b2 c6 Bb4 h7 Nf6 c7 Bc3 a6 Nc6 a5 Nb4 a7 Na2 Na3 b1N Nc2 Na3 Ba4 Nb5 Rb1 Ba1 Nf3 Bd7 c8Q Qc7+ Ne5 Rd8 h8Q Nh7 Ne3 Qc2 Qc7 Rac8 a8B Be6 Qcg7 Rc5 Nc6 Bc8 Ne7 f4+ Kg2 f3+ Kg3 f2 Ba3 Be6 Bh3 f1R Bc6 Bf7 Ng8 Bh5 Kh2 Kf4 Qf7+ Ke4 Kg2 g3 Qhf6 g4 Rb4 Ng5 Rc4 Rf5 Rb1 Rf3 Kh1 g2+ Kh2 Rf1 Kg3 g1B Kh4 g3 Bf5+ Kf4 Rb2 g2 Rbb4 Bh2 Rb1 Nbc3 Rb7 g1B Bcd7 Nb5 Bc6 Bf3 Bcd7 Be4 Kh5 Bf3+ Ng4 Nc7 e3+ Kg3 Bac6 Nb5 e4 Qc3 e5 Qc2 Bb4 Bd1 Ba3 Kf3 Ne3 Bf4 Rb8 Bgh2 Rb7 Nbc3 Ba4 Nb5 Bc6 Be2 e6 Bhg3 e7 Bc7 e8B Bge5 Bed7 Bb6 Be4+
5B2/1Q3n2/RN1RBbB1/p2rnrbK/2bBkr2/p2NnP1b/1P3B2/4Q1q1 b - - 0 1 illegal: No possible last move, all moves rejected
bb4R1/3B3r/RPnB1pB1/2n2B2/2NrQqkb/NP2rn1b/pK3B2/5Q2 b - - 0 1 illegal: No possible last move, all moves rejected
3b1QB1/R1Nrp1r1/1R1Rqb2/1K4p1/R3PBPk/3NrbQ1/bn1n4/R1n5 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 Qc2 gxf4 Qg6 hxg6 a4 g5 axb5 Rh5 Nh3 Rh4 Ng1 Rh8 d4 c5 Kd2 a5 Kd3 f5 Kc4 Kf7 h4 Kg6 b4 Kh5 d6 a4 d7 f3 e3 a3 g3 a2 d5 f4 d6 f2 b6 f3 b5 Nc6 b7 Nf6 b8Q Bb7 b6 Nb4 Nc3 Bg7 Bd3 f1R Nb5 f2 Bh7 Ra3 Bg8 Rd1 Nc7 f1B+ Ne2 Bf3 b7 Qc8 d8R Nd3 d7 Rh7 Kb5 c4 Nf4+ Kg4 h5 c3 h6 c2 Rg1 Nb2+ Nd3 Ne4 Rf8 Kh3 d8R Bc3 g4 Ba5 Rd6 Kh4 Rf4 Nd2 Ra4 Rg7 e4 Qe6 h7 B1e2 Qf8 Rc3 Rb1 a1B b8Q Bb6 Na8 Bd8 Nc7 Nf1 Bd2 c1N Bf4 Rd2 Ra7 Bd1 Ra4 Bb3 Ra7 Ba2 h8R+ Rh7 Ra4 Rd1 Ra7 Nd2 Re1 Nbc4 Rb4 Nb2 Rba4 Rb3+ Nb4 Re3 Nd3 Rh5 Rh7 Rh6 Rf7 Rg6 Rb6 Rg7 Rf5 Nbc4 Rd5 Bf6 Rdd6 Nb2 Rg1 Nf1 Ne1 Rd4 Nd3 Nd2 Rd1 Ne2 Ra1 Nc1 Rdc6 Rd7 Rd6 Bd1 R7a6 Be2 Ra7 Bf3 Bh2 Nd1 Na8 Qe5+ Rd5 Qc3 Qf4 Qd4 Rdd6 Nb2 Nc7 Qc4+ Ka5 Qe6 Kb5 Bd1 Qf3 Be2 Bf4 Bd1 Qg2 Bf3 Qg3#
r1BRbk2/n2pN1Q1/n4K2/2n2N1Q/2br2R1/3Pb2P/2Nprr1B/1NN4q b - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 b5 a4 e5 axb5 exf4 d3 c4 Qd2 c3 Kf2 cxd2 Kf3 g5 Kg4 a5 Kf5 g4 c4 g3 e4 g2 b4 f3 b6 f6 b5 a4 h6 a3 e5 a2 b7 f2 b6 Qc7 h3 Ra7 e6 Nc6 b8Q Ra5+ c5 Ra4 e7 Qh2 h7 Rd4 b7 Nb4 c6 Bh6 c7 Be3 Ba3 Na6 Ne2 g1R Bd6 Rg2 Rg1 Qh1 Nc1 Kf7 Be2 f1R+ Bf3 Re2 e8N Rff2 Bh2 Kf8 Kg6 f5 Ng7 f4 Nf5 Ne7+ Kf6 Nc6 Rg4 Rg8 h8Q Na7 Qh5 Rh8 Be4 f3 Qa8 Rg8 b8N Bb7 c8N Bd5 Nc6 Bc4 Nb4 Rh8 Na3 Rg8 Rb1 a1N Bb7 Nb3 Nbc2 Nbc5 Nce7+ Nc8 Qb8 Rg2 Qe5 f2 Nb3 Na7 Nc1 Rh8 Rg6 Ke8 Qg3 Rf8+ Ke5 Kf7 Rbb6 Ra8 Nb1 Kf8 Kf6 f1B Qh7 Re1 Qg5 Be2 Qg7+ Ke8 Q5h6 Bh5 Rg4 Ree2 Qhg5 Bg6 Qh5 Rgf2 Rc6 Rd8 Rc8 Bgf7 Qgg6 Kf8 Ra8 Rc8 Qgg5 Be8 Qgg6 Rc7 Rd8 Rc8 Qgg5 Rb8 Bc8 Ra8 Qg7#
8/pRPnbb1B/3p1nB1/kBP2q2/1n2R1Qr/B3rN1r/Q2b1Kn1/2N4B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 dxc5 exf4 e4 f5 c4 h5 b4 a3 g4 f3 b5 a2 e5 f4 c6 d6 c5 h4 e6 h3 b6 h2 e7 Qd7 g6 Rh4 g7 Qf5 b7 Be6 c7 Kd7 g5 Kc6 e8B+ Nd7 b8Q Bf7 g6 Be7 Nc3 Nf6 Rb1 a1B Na2 Bc3+ Kf2 Bd2 Qbb3 Rb8 Qe6 Rb3 g8B Re3 g7 Rh3 Bb5+ Kb7 Kf1 f2 Ba3 Rh4 Kg2 f1N Qg4 f3+ Kf2 Rh3 Nc1 Rh4 Ba4+ Ka6 Bh7 Ka5 g8B Rh3 Bb5 Rh4 Nge2 Rh3 Rg1 h1R Nd4 Rh4 Rg3 R1h3 Qc4 Nf8 Qa2 N8d7 Kg1 f2+ Kg2 Nh2 Nf3 f1N Kf2 Nd5 Bg6 Nb4 B8h7 Re4 Rg1 Ne3 Re1 Ng2 Bc6 Re3 Ba8 Rb3 Re4 Re3 Bb7 Nf1 Bd5 Ng3 Bc6 Nh5 Bd5 Na6 Rb7 Nb4 Bc6 Nhf6 Bb5 Ne5 Bec6 Ned7 Rd4 Qc2 Ne5 Ne1 Bh1 Ng2 Nf3 Qf5 Re4
4q1b1/rq1qR1R1/1rnNN2k/1NB5/N1P1Qp1Q/5NP1/2Kpqn2/2bB3q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 c4 Kf7 e4 Kg6 b4 h5 b6 a5 b5 d5 g3 f3 e5 f2 e6 a4 e7 h4 e8N f4 b7 d3 b6 d4 Nd6 h3 Na3 h2 Qf3 Rh6 Be2 f1Q Nab5 a3 Bd1 a2 Ba3 Be6 Bc5 Nc6 b8N Nf6 b7 Ra7 Nd7 Bg8 b8N Ng4 Na6 Nf2 Nac7 Qe8 Ne6 Qe2+ Kc1 d2+ Kc2 Kh7 Nb6 Rg6 Rb1 a1Q Qe4 Qa6 Na4 Qb7 Nf3 Bg7 Re1 h1Q Qe5 Rf6 g6+ Kh6 Qe4 Bf8 g7 d3+ Kc3 Be7 Rb3 Rg6 Kb2 Bf6+ Kb1 Bb2 Ra3 Bf7 g8Q Bc1 Rb3 Rf6 Qg4 Bg8 Nbc7 Qbc8 Rb7 Qcd7 Ncb5 Qh7 Bc2 d1Q Rg7 Qdd2 Bd1 Qb4+ Nb2 d2 Kc2 Qf5 Na4 Rg6 Na3 Qb7 Nab5 Qff7 Qd4 Qfd7 Qe4 Rf6 Nec7 Bb2 Qd5 Q2e6 Ne4 Na5 Qdf5 Q6e7 Qe5 Rb6 Ned6 Nc6 Qd5 Qg5 Ree7 Bc1 Ne6 Qe5 Qd4 Qe3 Qe4 Qe2 Qh4+
3qrR1Q/2Bn4/7p/1QN1NR1r/1qR1pKBk/1rbRP1r1/2b1RP2/1rn5 b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 d4 Kf7 Kd2 Kf6 Ke3 Kg5 b4 c5 d6 a5 b6 e5 b5 h2 b7 c4 d7 a4 d5 a3 b6 c3 d6 a2 Nh3+ Kh4 Qd2 g5 Qb2 c2 Nc3 g4 Ng5 h6 Nf7 g3 Ne4 g2 Qb5 g1R Bh3 Nf6 Nc5 Ne4 Bg4 Ng3 Bb2 e4 Rc1 a1Q Kf4 Qa5 e3 Bg7 Be5 Re8 Re1 c1R Re2 Rg2 Rf1 Rc3 Rc1 h1R Rcc2 Rb3 Rc4 Qc7 d8R Rhb1 d7 Qb4 Bd6 Bc3 Ne5 Raa3 Ned3 Ra5 Ne5 Rg8 Rf8 Qd8 Rf5 Re8 Bf8 Nc6 b8Q Ba6 Qc8 Nb8 b7 Rgg1 Bd6 Rg2 Qbc6 Rgg1 Bc7 Rg2 Rd4 Bd3 Rc4 Bc2 Qb6 Qe7 d8R Nd7 Qa8 Qf8 b8R Qf6 Rdc8 Qd8 Qb5 Rgg1 Rb6 Rg2 Rd6 Rgg1 Rf8 Rg2 Rd3 Rgg1 Re1 Ne2+ Kf5 Re7 Rf6 Ra2 Na4 Rg2 Qbb8 Nc1 Nf7 Qh8 Re2 Nf8 Kf4 Nd7 Rg8 Re5 Nc5 Rh5 Rf5 Rg3 Qb5 Raa3 Qab8 Ra8 Ne5 Qf6 Qf8 Re8 Qg7 Qe7 Qh8 Qd8 Rgf8
1Kn5/2pq4/B2k1Qr1/1brN1R1N/Q1r2bPr/2NN2B1/2R1Pp1q/2n1r2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 f5 b4 a5 d4 h5 g4 a4 b6 h3 b5 h4 b7 a3 b6 h2 d6+ Kd7 d5 h3 Qa4+ Nc6 b8N+ Ke8 b7 a2 d7+ Ke7 d6+ Ke6 Nc3 Na5 Bg2 Rh5 Nc6 Rh6 b8N Ba6 Nb4 Bb5 Nd3 Rg6 Nc6 Nb3 Ncb4 Ra5 Nbd5 Bh6 Ba3 Bg5 Rc1 a1R Rc2 Rc1 Bc5 Qe8 d8Q Qd7 Bf2 Ne7 Bg3 Nc8 Qh8 Re1 Qh6 Nc1 Qf8 Qe7 d7 Kd6 d8N Bh6 Qf7 Qd7 Ne6 Bg5 Ng7 Bh6 Qa2 Ra4 Nh5 Rc4 Qa4 Bg5 Kf2 Bh6 Nf3 Rc5 Nfe5 f3 Rf1 h1Q Qg7 h2 Qh8 Rg5 Ke3 f4+ Kd4 Rg6 Nf2 Qg1 Nd3 h1R Ke4 Rh4 Nh1 f2 Kd4 Qh2 Qf6+ Qe6 N5b4 Bg5 Bb7 Bh6 Ba6 Bg5 Rg1 f1R Nbd5 Rf3 Rf1 Re3 Qh8 Qd7 Qf6+ Re6 Rf3 Bh6 Re3 Bg5 Re5 f3 Rf5+ Bf4 Qa1 f2 Qa2 Bc6 Qa4 Ra5 Kc4 Rc5+ Kb4 Rc4+ Ka5 Rg5 Bb5 Rg6 Ka6 Rc5 Bc4 Bb5+ Kb7 Bc6+ Kb8 Qh3 Qa8 Qh2 Qg5 Re4 Qa4 Rd4 Bb5 Rdc4 Ba6 Bb5 Qf6+
1q3Bq1/2kB1R2/bR5K/2qn2r1/r2p1Br1/1QPPBn1N/N1pQ2b1/6qB b - - 0 1 illegal: No proof kernel
br3q1k/b1R5/R2RN1K1/Q2B1N2/p1r1PBPq/r1Q5/q1RpnR2/1q3n2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 f5 c4 Kf7 e4 Kg7 g4 h5 b4 a5 g6 h4 c5 d3 b6 d4 b7 h3 c6 h2 b5 d2 b6 d3 c7 Nc6 b8R Bc5 b7 Nf6 Be2 Qd5 Qc2 d1Q Nc3 Nh5 Nh3 Ng3 Nb5 Qa2 Nd4 Nf1 Ng5 Ba7 Nge6+ Kg8 Be3 d2 g7 Qdb1 Bc4 Kh7 Rg1 h1Q+ Rg2 Qh4 g8R Bd7 c8R Be8 Ke2 f3+ Kd3 f4 Bd5 f2 Nf5 f3 Bf4 Bd7 Rg6 Nd4 Rc7 Ne2 Rbc8 Re8 b8Q Kh8 Qb6 Bc6 Qa6 Rb8 Rf6 Ba8 Rh2 Rb3+ Kc4 Rg8 Qc3 Rd8 Qb6 Ra3+ Kc5 Rf8 Kd6 Rg8 Ke7 a4 Rd8 Rf8 Rd6 Rb8 Kf7 Ne3 Qb7 f1R Qa6 f2 Qaa5 Rc1 Kg6 f1Q Rg2 Qf3 Rf2 Nf1 Ra6 Qe3 Rd6 Qc5 Ra6 Qf8 Rd6 Qbb3 Rb1 Rc2 Rc1 Qbb1 Ra6 Rcb2 Rc2 R2b4 Ned4 Rc4 Rfd6 Rcb4 Ne6+ Rd4 Qcb4 Rc4 Qc3+
2B1k3/N3bN1N/b2qb1K1/BNn2r1p/P3Q1b1/1N1RPr1p/1q3Q1n/4R2r b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 Kf2 f5 Kf3 h5 Kf4 b5 g4 c5 d4 c4 a4 b3 g5 b4 d6 b2 d7+ Ke7 d5 c3 e6 c2 g6 b3 Kg5 h3 g7 f4 e3 f3 Ne2 f2 Qe1 Nh6 g8N+ Kd6+ e7 Qc7 d8N Kd7 d6 Ra5+ Kg6 Na6 Na3 b1Q Nd4 b2 Nf7 Rf5 Bd2 c1R Nb3 Nc5 Ba5 Ke8 Ba6 f1B Nb5 Be6 Bc8 Ng4 Qf2 Nh2 Ra3 Be2 Re1 Bg4 Na1 Qc2 Rd3 b1B Nb3 Ba2 Ne5 Qb1 Nc6 Qb2 Nca7 Bb1 Nh6 Qb6 Nf7 Rh7 Ng5 Rhf7 Nh7 Qa6 Re2 Rh1 Re1 Bc2 Bb6 Rf3 Ba5 R7f5 N5d4 Bd7 Rd2 Bd3 Rdd1 Qb6 Rd2 Ba6 Ndb5 Rd5 Rd3 Bdf5+ Kg5 Kf7 d7 Qd6 e8Q+ Kg8 Qe4 Kf7 Qe5 Be6 d8N+ Ke8 Kg6 Be7 Qe4 Rdf5 Nf7
4KB1b/1Q1B2bn/BN4rr/2Q2pn1/3PBB1r/6p1/k2n2Pq/q1nNRR2 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 Ra4 dxc4 Ra6 Nd7 Ra1 Nb8 f4 exf4 h3 g5 Ra6 g4 Ra3 g3 Ra1 Bg4 hxg4 Ba3 Ra2 Be7 Ra1 Bf8 e4 Kd7 Ke2 Kd6 Kf3 Kc5 e5 Kb4 Ke4 c5 Kf5 a5 b6 h5 e6 f3 g5 f2 b3 h4 g6 a4 b7 c3 g7 c4 e7 a3 e8B h3 d3 c2 Bf4 c1N Nf3 h2 Nc3 a2 Bd7 Ka3 b4 Nf6 g8B Nc6 b8Q Bg7 b5 Rh6 b6 Ra6 b7 Nh7 Nd2 Ne5 Qh5 Nf3 Nd1 c3 Nc4+ Kb3 Qc7 c2 b8B Rag6 Nb6 Qh4 Qb7 Nfg5 Bbd6 Bh8 Rg1 h1R d4 Qh2 Ba6 f1N Bf8 Nd2 Rf1 Ne2 Bc8 c1B Bd7 Ba3 Rc1 a1Q Rb1+ Ka2 Re1 Nf6 Bh7 Nc1 Ke5 Be7 Rf1 Bd8 Kd6 Bc7+ Ke7 Be5 Rb3 Bg7 Re3 Bh8 Ree1 Bg7 Bg8 Nfh7 Ke8 Bh8 Bd3 Beg7 Ba6 Nge4 Qc5 Neg5 Nc4 f5 Bd5 Qg1 Bf3 R1h4 Be4 Qh2 Nb6
R2rb3/n4q2/qN1nk1Q1/2BRpq2/2PpBrR1/N1RrR3/3bK1PQ/6q1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 f4 Kf7 c4 d5 b4 a5 f6 e5 f5 h5 b6 h3 b7 d3 b5 d2+ Kf2 h4 b6 d4 Ne2 a4 Nec3 a3 Bd3 a2 Qg1 d1R Nd5 h2 Ke2 h3 Na3 Bh6 Be4 Nc6 b8Q Nge7 b7 Na7 Qd6 Bd2 b8R Rf8 Rb5 Qe8 Nb6 Bd7 Rd5 Nec8 Rb1 a1Q Rb3 Qe6 Re3 Be8 Qc6 Nd6 Bb2 Kg8 f7+ Kg7 Bc3 Kf6 Bb4 Rd8 Bc5 Qc8 Rc3 Qa6 Re3 Qb1 Rc3 Ke7 f6+ Ke6 Re3 Rg8 f8R Rg4 f7 Rf4 Rg8 Qc2 Bg6 Qf5 f8R Qf7 Be4 Qf5 Qf2 Qf7 Rg1 h1Q Rg4 h2 Qh4 Qf5 Rf1 Qg1 Rff3 h1Q Rc3 Qh3 Rfe3 Qhh2 Qg3 Qhh7 Qh2 Qe7 Rf7 Qef6 Rb7 Qf7 Rb8 Bc1 Rc8 Rd3 Ra8 Bd2 Qc7 Q7h5 Qh7 Qhf7 Qg6+
3qnR2/b2q3Q/1B2b1BK/p1n2N1N/3Rr1p1/1NbQ2r1/Pk1n1N1P/1N1b4 b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Ke7 e4 Kf6 d4 b5 d6 a5 d5 Ke5 c6 f5 c7 g5 d7 g3+ Kf3 g4+ Ke2 g2 d6 f3+ Ke3 f2 Qd3 b4 Nh3 g1B Be2 f1Q+ Nf2 b3 Bb2+ Ke6 Kf4 Qd1 e5 Na6 Bd4 Kd5 e6 b2 e7 Nf6 Kg5 f4 e8N f3 Ng7 Rh3 Nh5 Nc5 Qh7 Bg7 Bd3 Rg3 Bg6 Kc4 Be3 Bh8 Kh6 Ne8 Bd4 Ra6 Be3 Bc3 Bd4 Qe7 d8Q Be6 c8N Qd7 Ne7 Rb6 Nf5 Rb4 Nd3 Bf2 Rf1 Bg1 Be3 f2 Bd4 Ra4 Be3 Qd2 Rd1 f1N Nf2 Qd5 Rd3 Nd2 Bd4 Na6 Bb6 Nc5 Rf3 Kb5 Rd3 Re4 Rd4 Qa8 Qg5 Qad8 Qe3 Nc4 Qd3 Kb4 Nd2 Ka3 Rf1 Qa7 d7 b1B Nf3 Qb7 Nd2 Bc2 Nb1+ Kb2 Qd1 Qe7 d8N Qbd7 Nb7 Nd2 Qe2 Bd1 Qd3 Na6 Nc5 Qed8 Nb3 Nc5 Rd5 Re1 Ne4 Bgd4 Nf2 Re4 Rd6 Be5 Rd5 Bb8 Rd4 Ba7 Ne7 Nc7 Nh3 Rg1 Rf8 Ne8 Nf2 Rg3 Nf5
Nq2q2n/1N6/KN1b2pP/3BQNq1/2rP1Br1/b1RQ1kpn/bR4N1/1q6 b - - 0 1 illegal: No possible last move
R4nRK/q2Rrk1N/1Q1pB3/3N2B1/qb1npQ2/3PbPq1/6Rn/1n4rR b - - 0 1 legal: proof: b4 f5 c4 g5 e4 fxe4 a4 b5 axb5 d6 h4 gxh4 c5 Qd7 c6 Ba6 b6 Bb7 cxb7 Qc8 b5 Qd8 Ke2 c5 Ke3 e5 g4 a5 g5 h5 d3 a4 g6 h3 f3 c4 g7 h4 Ra3 h2 Qb3 h3 Nc3 Nd7 b8R Ra7 b7 Nh6 g8Q Nf5+ Kf2 e3+ Ke2 e4 b6 Nd4+ Ke1 e2 Kf2 e1B+ Ke3 Rh7 Kf4 Rg7 Nce2 c3 Qbd5 c2 Qa5 Bb4 Ra2 a3 Ra8 Qb8 Nc3 Rg3 Rb2 a2 Nd5 a1Q Qg4 Kf7 Kg5 Qa4 Bf4 c1N Rg2 Qc7 b8R Nce2 b7 Nc3 Rd8 Nb1 b8R Bh6+ Kh5 Qc5 Qb6 Nf8 Bg5 Re7 Rd7 Qc7 Re8 Qca7 Rec8 Ng6 Rg8 Nf8 Bc1 Be3 Qf4+ Ke6 Kh6 Rgg7 Nf6 Kf7 Ne2 Rg5 Nc3 Rg3 Rhg1 h1Q Ncd5 Qh2 Rh1 Rg5 Bd2 Qg3 Bc1 h2 Bd2 Ng6 Kh7 Nf8+ Kh8 Rg4 Rf2 Rg5 Bh3 Rg7 Rg2 Rg5 Rc1 h1N Bf5 Nf2 Rh1 Ng4 Nh7 Nh2 Be1 Qh3 Bh4 Rg3 Bg5 Qh4 Rc2 Rg1 Rg2 Qg3 Be6+
2Br4/KN1b1kqr/3p4/1P1R3n/n1PBRQ1p/bB1N4/1nn1q3/Q1B1b2B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 g4 h5 e4 a5 b4 a4 e5 d3 g6 d2 g7 a3 e6 h4 g5 a2 b6 f3 Ke3 f2 Kd4 f4 b5 f3 b7 Qc7 e7 Ra3 g6 Qg3 Kc5 d6+ Kb6 Bh3 Nc3 Ra5 Bg2 f1N Nge2 f2 Na4 Ra8 Nc5 Rh6 Nf4 Na6 b8B Ne3 Re1 f1Q Nb7 Rh7 Bh1 Nc5 Ba7 Qe2 Nd3 Nf6 g8Q Bd7 g7 Rd8 Qc4 Nh5 g8B Bg7 Qf4 Bb2 Bb3 Qg7 c4 Na4+ Ka6 Bc3 Bd4 Nc2 Ka7 Bb2 Rb1 Ba3 Rb2 a1B Rb1 Qeg2 Re4 Bc3 Qdf1 d1N Rb2 Nce3 Rd2 Qe2 Qe1 Ndb2 Qg1 Nf5 Qd1 Kf7 e8B+ Kf8 Bf7 Ne3 Be6+ Ke8 Bf5+ Kf7 Qe1 Ba5 Rd1 B5b4 Qc3 Nc2 Rd2 Nd1 Qa1 Ndb2 Rd1 Be1 Rd2 Bc6 Bc8+ Nf6 Bb6 Nc5 Nb4 Nca4 Rd5 Be8 Bd4 Bd7 Qg5 Nh5 Nd3 Be6 Qh6 Bd7 Qf4+
2Q2b2/3n1b1B/1kp1p1B1/r3N1B1/R2Kbbn1/Q1rP1R1B/1qP2N2/r1q4B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 b4 e4 b3 e5 e6 axb3 Ke7 b4 Ke8 f5 Ke7 b5 exf5 e6 Kd6 e7 f4 Qf3 Ke6 Qe2+ Kd6 Qe6+ dxe6 Ra2 Kd7 Ra5 Bg7 Ra1 Bf8 Kf2 h5 e8B+ Kd6 b4 a5 g4 f5 d3 a4 b6 a3 b7 f3 Ke3 a2 b5 Kc5 b6 f2 g6 h4 g5 h3 g7 h2 g6 Qf6 Bc6 Bd7 Nd2 Be8 Bh3 f1R Ngf3 Qb2 Ne5 Nh6 g8B Ra5 g7 Bf7 Bh7 Nd7 b8Q f4+ Ke4 f3 g8B f2 b7 Kb6 Qa8 Ng4 Bg6 Rd1 B8h7 f1Q Rg1 Rg8 Rg3 h1B+ Rf3 Rg7 Bd5 c6 Qc8 Ra3 Qa8 Rc3 Qa3 Bg2 Kd4 Rg8 Bh5 Rg5 Ne4 Re1 Bf4 Rb1 Nf2 Qfc1 Bde4 Rf5 Bg5 Bh1 Ng6 Ra5 Ne5 Bg2 Re3 Bf3 Bd5 Be4 Rf3 Qd2 B5g6 Re1 Rc1 a1B Rd1 Qdc1 b8Q+ Ka6 Qa8+ Kb6 Qc8 Qcb1 Qe7 Q2a2 Rf5 Bb2 Rf3 Bc1 Qd6 Bf4 Rg3 Bf5 Bh1 Qab2 Rf3 Be4 Qe7 Rf1 Re1 Qd1 Qd6 Qd2 Ra1 Rd1 Ra2 Ra1 Ra4 Qdc1 Qa3
2qBN1rn/1kN4R/1P4B1/1P3BQ1/5rp1/B1pb3R/B1rbnb1b/KQ2q3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 d4 Kd7 Kd2 a5 Kc3 f5 b4 c5 Kb2 Kc7 h4 g5 e4 g3 b6+ Kb7 h5 g4 h6 f4 h7 f3 d5 g2 d6 f2 e6 a4 e5 Ka6 d7 Kb7 b5 Ne7 Ra3 c3+ Ka1 c4 Ne2 g1B Nd4 c2 Rah3 a3 Nf5 a2 Ba3 c1B Bd3 f1R Ng7 Bd2 Nc3 Bf2 Qb1 Nbc6 Bf5 Nd4 Nd5 Ne2 Nc7 Rg8 h8Q Ng6 Nge8 Bd6 Qh6 Nh8 e7 Ra5 e6 Bh2 Qh4 Rc1 Qf6 Ra4 Qg5 Rc2 Rh7 Bhf4 R1h3 Bh2 Na6 Qc7 d8B Qc5 Nac7 Bd7 Nd5 Qc8 Ndc7 Bc6 Ng7 Rb4 e8B Be4 e7 Bd3 Bf7 Bhg1 e8B Bh2 Qb3 Rc1+ Kb2 Rc3 B7g6 Ra4 Qb4 Rc1 Bef7 c3+ Kb3 a1Q Nge8 Rc2 Bc4 Qf1 Bce6 Rc1 Ka2 Qe1 Qb1 Rc2+ Ka1 Rf4 Ba2
1n1b4/3BRB1p/3B1BP1/4B3/1qb2R2/r1kQPn1r/r2NK1pN/q1q3Qr b - - 0 1 illegal: No possible last move
1N2Kbk1/3R1P1b/1BnPb2b/N2NQN1r/2B4q/n1prRQ2/p2q4/6Nq b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 a5 Kd4 c5+ Ke5 h5 f4 e6 b4 h3 d4 h2 g4 c4 g5 a4 b6 e3 g6+ Kg7 d6 a3 d7 e2 f5 e1B d5 a2 b7 h4 b5 h3 b6 Bd2 Qf3 Ra5 Nc3 Bh6 Be3 Ne7 Kd6 e5 f6+ Kg8 g7 e4 Rd1 Nbc6 b8Q Ra3 b7 Ne5 Bb6 e3 Qc7 e2 b8N e1Q Rd3 Qh4 Re3 Qe8 d8N Be6 Nb7 N7c6+ Qe7 Qg6 Na5 Qd3 Kc7 Qd2 d6 Rh7 Nd5 Rd3 Be2 c3 Bf1 Nb4 Kd8 Nc2 Ke8 Nc6 Be2 Na3 Bf1 Bf5 Qe5 Be6 Be2 Rd4 Bc4 Rd3 Ne2 Rh8 Rb1 h1B Ng1 h2 Rb4 Kh7 g8N Bg2 Rb5 h1Q Nge7 Bf1 Nf5 Kg8 Bd8 Bg2 Rb7 Bh3 Rd7 Rh7 Ng7 Bhf5 Bb6 Be4 Nf5 Rh8 Nd4 Bh7 Nf5 Bg6+ Rf7 Bhg7 Re4 Rh5 Re3 Bh7 Rd7 Bh6 f7+
4Q1Rq/nr2rp2/N3B1NR/2b2k1K/1P1P4/2r1QNBN/pn1qr3/1bN4n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 g4 c5 e4 a5 b4 h3 d6 Ke6 g5 h4 Kg4 c4 e5 f3 d3 c3 b6 h2 b7 h3 d7 a4 g6 c2 g7 a3 Bd2 c1R Qe2 a2 Nc3 f2 Bf4 Ne7 g8N Nf5 Bg3 Nd6 Qe3 Nc4 Nf3 Ra7 Ne2 Bc5 Ne7 Nc6 b8N Rb7 Na6 Re8 Ng6 Rc3 Nc1 Nb2 Kh5 Kf5 e6 Re7 d4 Na7 Bb5 f1R Bc4 Rf2 Bb3 Qc7 d8N Re2 Rg1 h1Q Rb1 Rd7 e7 h2 e8Q Qf4 Ne6 Re7 Neg5 Be6 Ra1 Bc4 Nh3 Bd3 Rg2 Bb1 Rg1 Qe5 Rg2 Qd1 Bc4 h1N Bd5 Qd2 Be6+ Kf6+ Kh6 Rc4 Nd3 Bd6 Nf8 Bb8 Bf4 Ng3 Nhf2 Bc2 Rh1 Bb1 Nc1 Rc3 Rh5 Bc7 Nh3 Nh1 Rg8 Bd6 Bg3 Bc5 Ng6 Be4 Rh4 Bf5 Kh5 Bb1+ Kg4 Qh5+ Kf4 Qh6+ Kg4 Qh8 Rh7 Rb8 Kh5 Rbb7 Bc4 Kf5 Rh6 Rh2 Bd5 Re2 Be6+
nQ2Q1Q1/1rq1rpN1/3Qn1Nn/1q1pP2b/P3Qn2/1Bk2RB1/6R1/K3b2q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 h4 Ke6 e4 g5 c4 b5 Kc2 b3+ Kb2 g4 a4 g3 c5 b4 c6 g2 h6 d3 h7 d2 h5 Nh6 c7 Ra7 Rh2 Rb7 Ra3 Nc6 Nf3 g1N Nc3 Nh3 Ka1 Nf4 Ne2 Nd4 Ng3 d5 Bc4 Qd6 Qe1 d1N Nh4 Nc3 Ng6 Ncb5 Rg2 Rg8 h8Q b2+ Ka2 Be7 Bb3 Bh4 Nf5 Re8 Qg8 Re7 Qe2 Bd7 c8Q Be1 Qcd8 Nc7 Be3 Bb5 Bf2 Na8 Bg3 Qc7 Qe3 Be2 Qb8 Kd7 e6+ Kc6 e5 Kc5 Ng7 Bd1 Qe4 Bf3 Bc2 Kc4 Bb3+ Kc3 Qgf8 Ng8 h6 Bh5 h7 Nh6 h8Q Rd7 e7 Nde6 e8Q Re7 Rd2 Rd7 Rf2 Bd2 Rf3+ Nd3 Qd6 Re7 Rf1 Ndf4 Qhg8 Qc8 Kb1 Qc6 Ra1 Qb6 Bc4 Qc7 Ka2 b3+ Ka3 b1Q Ra2 b2 Rf3+ Qd3 Bb3 b1Q Rb2 Qh1 Ka2 Be1 Rd2 Qb6 Ka1 Qc7 Rf1 Qa6 Rg2 Qb5 Rf3+
1n1RB1r1/kQ3pQ1/2R2b1p/P5rQ/4nK2/n1q1NQBq/bnP5/1Q2Nb2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 b5 e4 d5 a4 Kd7 g4 Kc7 a5 Kb7 e6 b3 e5 b4 g6 b2 e7 b3 e8Q d3 Ke3 d4+ Kf4 d2 e6 d3 g5 Bd7 e7 Bg7 Nf3 Qb6 Ne1 Bg4 Qb5 Nf6 e8Q Rf8 Nc3 b1N Qe3 b2 Rh6 Be2 Qf3+ Ne4 Nd5 Bf6 g7 Rg8 g6 Ka7 Ne3 Na3 Qbh5 b1B Bh3 Qb3 Bd7 Bf1 Be8 Qc3 Bb2 Rf8 g8Q Ba2 Qb1 d1Q g7 d2 Qh8 Qe2 g8Q d1N Qgg2 Qed3 Qhg7 Rg8 Rg6 h6 Bc1 Bh4 Rc6 Nb2 Qh1 Bf6 Bd2 Qb3 Bb4 Qdc3 Be7 Bd4 Bh4 Bf6 Bg3 Qe6 Qh8 Rg5 Qg7 Qh3 Qhg2 Be6 Qh1 Nac4 Ra4 Na3 Rd4 Ba2 Rd8 Qg2 Rd4 Ba6 Bd7 Nc5 Qf2 Qh3 Rb6 Bf1 Qc6 Nba6 Qff3 Rh8 Be8 Ne4 Rd8 Nb8 Qb5 Rf8 Rc6 Rg8 Qb7+
4q3/1q2P1q1/Q1N1pb1p/2Bb1k1b/r1B1N1P1/nqn2N2/1NR3K1/1NRrQ3 b - - 0 1 illegal: No possible last move, all moves rejected
2Nr1k1r/n3P1b1/Q2p4/1RB2bPQ/3rp2q/nK1BRBBq/1nr1N2B/8 b - - 0 1 illegal: No possible last move, all moves rejected
1n6/3P2k1/1qbR2r1/2BRqp2/q1BR1nQN/p4Nrr/1Q1P3b/R1r1RK2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 f5 b4 Kf7 e4 a5 g5 h5 d6 c5 b6 a4 b7 h3 g6+ Kg7 e5 c4 e6 h4 b5 f3 d7 f2+ Ke2 c3 b6 c2 e7 h2 e8R h3 Nc3 Nf6 Nd5 Bd6 Re6 Rg8 Nf3 Nh5 Ba3 c1R Bc5 a3 Ne3 Ra6 Ng2 Bc7 Rg1 h1Q Rd6 h2 Ngh4 Qg2 Qc2 h1R Qb2+ Qf6 Rd5 Qh2 Rg4 Qg3 Rgd4 Rh3 Rd6 Qg1 R6d5 Bh2 Rd6 Nc6 b8R Bb7 Re8 Nb8 Re5 Bc6 b7 Qg3 Red5 Qd8 Bg2 Qb6 Bf1 Kf8 g7+ Kf7 Ke3 Nf4 Bb5 f1Q Bc4 Ne2 Kd3 Qd1 Ke3 Qe5+ Kf2 Qa4 Kg2 Rc3 Kf1 Nf4 Re1 Rc8 g8R Rc1 Rg1 Rg8 Qb4 Rgg3 Qb2 Ra5 Rh1 Kg7 Qb4 Na6 b8Q Rb5 Qb7 Nb8 Qb2 Rb4 Qc7 Rb3 Qd8 Rg6 Qg5 Rcc3 Ra1 Rc2 Qg4 Rc1+ Kf2 Rbc3 Re1 Rb3 Kf1 Rd3 Ng1 Rdg3 Ngf3
N1k4N/Kn1P1nR1/1pB1r2B/2b3Qn/3Q3b/2R1q2P/R2b2pR/1Rr2bq1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 g5 Kd4 c6 Kc5 e5+ d6 e4 d4 e3 f4 e2 a4 e1B a5 g3 h3 g2 d5 b3 f6 b2 a6 g4 a7 g3 f5 Bh6 f7 Qe7 Kb6 c5 f8R c4 f6 c3 f7 c2 Bb5+ Nc6 Ne2 g1B+ Qd4 g2 Rh2 Qe5 Nbc3 b1Q Nf4 Bh4 Ng6 Nf6 Rg8 Nh5 f8R Bd2 Rf3 Qe3 Na4 Rh6 Nh8 Re6 Rg7+ Kd8 Ra2 Na5 Rb2 Bd7 Bc6 Rc8 a8R Bgf2 Ka7 b6 Nc5 Qa1 Na6 Nb7 Rb1 Be8 d7 Bg6 Qb2 Bd3 Qd4 Bf1 Rfg3 Qe2 Rc3 Qe3 Ba3 c1N Bf8 Qb2 Nc7 Nd3 Rg6 Qb4 Bh6 Ne5 Rg7 Nf7 Rb8 Ke7 Na8 Rc7 Rc8 Qc5 Ra3 Qc1 Ra2 Qce1 Bb5 Rc1 Rc3 Kd8 Ba4 Bfg3 Bc6 Bd6 Rca3 Bc5 Rc3 Ke7 d6+ Kf8 d8Q+ Re8 Rba1 Q1f2 Qa4 Qg1 Qg5 Re5 Bf3 Re6 Qd4 Ke8 Rb1 Kd7 Bc6+ Kc8 d7#
BbN3NR/r1P3K1/N4Nb1/k2b4/Q3qNnR/2B2ppn/QP3q2/4n1rb b - - 0 1 illegal: No possible last move
1B3q1B/2PknQ1r/Pb1B3r/1qRpRpK1/2b3B1/1nn3q1/2q1N3/2BQ1N2 b - - 0 1 illegal: No proof kernel
7N/q1pb3R/n1b2rrk/1QPN2qB/K2b3r/1n1NR1Q1/1p1b1P1B/NN6 b - - 0 1 legal: proof: e4 a5 d4 h5 g4 hxg4 b4 f5 exf5 e5 dxe5 axb4 Kd2 Kf7 c4 d5 Kc2 g5 Kb3 Kg7 h4 b5 a4 d4 a5 g3 e6 g2 e7 d3 e8Q d2 c5 g4 h5 g3 f6+ Kh6 f7 Bd7 a6 Nf6 a7 Bg7 f8N Ne4 Ne2 g1B Ne6 g2 Nf8 Bd4 Qc2 Qg5 Qd3 Na6 Ng6 Bh2 Ngf4 g1R Ra3 Bc6 Qg8 Rf8 a8N Rf6 Nb6 Rh7 Nbd5 d1Q+ Qc2 Rg4 Nd3 Bf4 Bg2 Qg1 Qb2 Bd2 Bf3 Rg7 Rh3 Rh4 Rh1 Rgg6 Rh3 B2c3 Bf4 Bd2 Nec1 Qg4 Bd1 Qc8 Re3 Qb8 Bh2 Qa7 Bg4 Nb8 Ra6 Bd7 Re6 Na6 Re7 Bc6 Qe6 Bd7 Qe5 Bc6 Qg3 Bd7 Ka2 b3+ Ka3 Bc6 N3b4 Bd7 Ncd3 Bc6 Nc2 Bd7 Qa2 b2 Na1 b4+ Kb3 Bc6 Qa5 Bd7 Qb5 Bc6 Na3 b1B Ka4 b3 Rg7 Ba2 Nb1 b2 Be2 Ba5 Rd7 Nd2 Rde7 Nb3 Rg7 Qg4 Rf7 Bd2 Rh7+ Kg5 h6 Kh5 Rhe7 Bd7 h7 Kh6 h8N Qg5 Nbc3 Bb1 Bh5 Bc2 Nb1 Bd1 Nb6 Bf3 Rf7 Bb7 Nd5 Bbc6 Rh7+
7n/q1p1Rnb1/r1P1R2r/q3P3/R4bNR/2BNb1BQ/K1pn2R1/4Qbk1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 exf4 a4 Bd6 axb5 Bc5 Bg2 Bf8 c5 d5 Be4 Bd6 Bd3 Bf8 Bc4 dxc4 e4 Ke7 h4 Ke6 d4 a5 Kd2 g5 Kc3 f5 b4 a4 Kb2 g4 c6 c3+ Ka2 a3 h6 g3 b6 g2 d5+ Ke5 d6 c2 b5 f3 b7 f4 h5 f2 h7 f1N d7 f3 h6 f2 b6 Qf6 d8R Ne7 Nd2 Kf4 Re8 Kg3 Nb3 Qe5 Nc5 Nd2 Nf3 f1Q Qe1+ Qf2 Rh4 g1B Nh2 Kg2 Nd3 Ng6 Re7 Ra6 Ng4 Nd7 b8R Qa5 b7 Bg7 Ra8 Qfc5 b8R Qa7 Rb3 Bb7 Rae8 Be3 Bb2 Bf4 Bc3 Nde5 Rb4 Bc8 Ra4 Nf7 Re6 Bd4 R8e7 Bde3 Rd1 Rf8 Rb1 Ngh8 Rb5 Rd8 Rg5 Rd6 Be5 Ng6 h8B Bb7 Bhf6 Ngh8 h7 Bc8 Ka1 a2 Kb2 a1B+ Ka2 Rb6 Bc3 Ba6 Bfe5 Bb5 Rg7 Ra6 Rgg6 Bg5 Bg3 Bgf4 Bb4 Bg7 e5 Nb3 Bc3 Nd2 Nc1 Be2 Nd3 Bf1 Rg5 Ng6 h8Q Kg1 Qh5 Ngh8 Rh2 Qb7 Qh3 Qbb6 Rh5 Qa7 Rh4 Qb5 Re8 Qa5 R6e7 Rf6 Re6 Rg6 R8e7 Rh6 Rg2#
K1N4q/1PbqQnBr/n1Q4B/3r4/pp1Nr1BR/1BnBP3/3R2b1/1n4k1 b - - 0 1 illegal: No proof kernel
BrbR4/1P4kB/n1pN2rq/1rb1QNqr/5pP1/B1B2B2/2K1n2b/4RQ2 b - - 0 1 illegal: No possible last move
1q3b2/1P5n/2pq1r2/1k3q2/N1Rbp1P1/N2Q2Nb/BRn1Q2K/NbN1r1B1 b - - 0 1 illegal: No possible last move
R7/Pr3qN1/b1nq4/2nNN1P1/6Qp/k1pQN2q/1bKR1q2/1rnN2BB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 Kd2 Kd6 g4 c5 f4 b5 a4 e5 g5 h5 a5 e4 f6 c4 f5 c3+ Kc2 e3 a6 h3 f7 h4 f6 h2 Na3 e2 Bg2 e1Q Nh3 Nd7 Nf2 Ne7 Qg4 Nc6 Be3 Rh7 Nd1 Rb8 Bg1 Nc5 Ra2 Be7 f8N Qe6 a7 Ba6 Nd7 Qf7 Nb6 b3+ Kc1 b4 Rd2 b2+ Kc2 b1N Nac4+ Kc7 d6+ Kb7 d7 b3+ Kc1 b2+ Kc2 Qc7 d8Q Qd6 d5 Rg7 Nce3 Bf8 Rd4 Nd2 Be4 Ndb3 Rd2 Nc1 Bf3 Qg3 d6 Qf2 d7 Rh7 Nbd5 Rg7 Nc7 Kb6 Ncd5+ Kb5 Be4 Ka4 Bg2+ Rb4 Bf3 Qg8 f7 Ka3 Be4 Be7 f8N Qgf7 Ng6 Rb7 Ne5 Rg8 Qa8 Rgb8 d8N Bf8 Ne6 Bd6 Nf5 Be7 Neg7 Bf8 N1e3 b1Q+ Kd1 Qd3 Ne8 Nd7 N3c4+ Kb3 Bf3 Rb5 Ndc7 Nd4 Nb2 Nce2 Neg7 R8b6 Qae4 Ba3 Ne3 Nc5 Qh7 Qdg6 Ncd5 Qd6 Qd3 Nc6 Be4 Ka2 Kc2 Rb4 Na4 Bc1 Nb2 Ka3 Bg2 Q2f6 Bf2 Rb3 Rg1 h1Q Bf3 Qh3 Bh1 R3b4 Bg3 Qf2 Bh2 Rb7 Rg3 Q7f3 Nbd1 Rb1 Bg1 Qff6 Rf3 Bb2 Rf4 Nc1 Rf5 Qfe6 Rf8 Qef7 Ra8
3b2R1/PR1Nr1b1/1p2R3/n4K1b/pPQ2Rrq/R2Q1rB1/k3Nqbn/2B5 b - - 0 1 illegal: No proof kernel
4q3/2R2k1b/b1R1nrR1/3RN1Rb/3Nn3/Ppb1b2Q/2BP3p/rb1QK1B1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 g4 h5 e4 b5 e5 f5 e6 c5 d6 c4 g6 c3 g7 h4 g5 f3 e7 c2 d7+ Kf7 e8R f2+ Ke2 b3 Nf3 h3 Ng1 b2 Nc3 b1B Re5 f4 Bb2 c1B Nd5 b4 Nf3 h2 Bd4 b3 Nb6 Na6 Rd5 Nf6 g8R Ne4 Rg6 Qe8 d8Q Bg4 Nd7 Rh6 Qc8 Nc7 Rc6 Ra6 Rg1 Bh5 Rg4 Bb2 g6+ Ke7 g7 Ne6 g8R Rf6 Rg1 Bc3 R8g6 Bh6 R1g5 Kf7 Bg2 f1B+ Ke1 Ra5 Bg1 Ba6 Nd4 f3 Bf1 Ra3 Bd3 Ra5 Bc2 Bd3 Rg2 Be3 Rc7 Ng3 Rgg5 Bh7 Rg6 Ne4 R2g5 Rc5 a3 f2+ Kf1 Rf3 Ke2 f1B+ Ke1 Ba6 Rc6 Ba2 Rc1 Rf6 Qb8 Bb1 Qg3 Ba1 Qh3 Bb2 Bd3 Rc2 Rc7 Bc3 Rc6 Ra2 Rc7 Ba5 R1c6 Bc3 Bc2 Ra1 Ne5+
bq2N3/R1RQ1n2/ppQ2k1q/rPB3rq/PK5b/2N3R1/6bR/Bbb4R b - - 0 2 legal: proof: g4 f5 e4 fxe4 d4 c5 dxc5 h5 h3 g6 Be2 Nc6 Bf3 Ne5 g5 h4 Bh5 Ng4 hxg4 gxh5 Kd2 Kf7 Kc3 d5 f4 e5 b4 e3 f5 b6 g6+ Kg7 g5 e2 c6 e1Q+ Nd2 e4 b5 e3 c7 e2 Rh3 a6 Bb2 d4+ Kc4 Rh7 Ne4 Qd2 c3 e1B Ne2 Bb7 c8R d3 a3 Nh6 f6+ Kg8 f7+ Kg7 Rb1 Ra7 Rc5 Ba8 Kb3 Rd7 c4+ Rd4 N2c3 Qb8 Ba1 Qdh2 Rc8 d2 c5 Ra4 c6 Ra5 a4 Ba3 c7 Bf2 Qh1 d1Q+ Kc4 Rh8 Nd6 Rg8 Qc6 Qd2 Rd1 Bc1 Kb4 Be1 Re8 Qe5 Re7 Qf5 c8Q Bf2 Rf3 h3 Re2 h4 Re7 Qe2 Ra7 h2 Rf1 Be1 Rh1 Qd2 Q8c7 Bf2 Re3 Qf3 Re7 Qh5 Qc8 Qe3 Rec7 Qd2 Q8d7 h3 Rd1 h1B Re1 Kh8 g7+ Kh7 Rg1 h2 Re1 Be4 Rh1 Rf8 g8R Bb1 Rg6 Bh4 Re6 Kg7 g6 Rh8 Re2 Kf6 g7 Re8 g8R Re5 Rg3 Rf5 f8B Nf7 Bh6 Qdg5 Ra2 Qg7 Be3 Rg5 Bc5 Qgh6 Re1 h1B Rh2 Bf3 Reh1 Bg2 Ne8+
k1NQb3/3B4/1KN2p1r/NbrR2N1/P4Pq1/1p3q1N/r1b3Qb/b1B2R1n b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 h4 gxh4 e4 Bf5 e5 Bc8 d6 Bh6 d5 Kf8 e6 Kg7 Bc4 Kf6 Bf1 Nd7 exd7 Bf8 Ke2 Ke5 Ke3 c5 g4 b5 f3 h5 a3 f6 g5 c4 g6 c3 g7 c2 Rh2 b3 Bc4 b4 Nd2 b2 Nf1 b1B Rg2 b3 Ne2 h3 Kd3 h2 Qd2 h1B Rg6 h4 Ne3 h3 Nd4 h2 Rh6 Ba6 Ne6 Qc8 d8N Bb5 d7 Kd6 Bb2 c1R+ Kd4 Bc2 Ng5 Kc7 Kc5 Kb8+ Kb6 e5 d6 e4 Be6 Ne7 g8N Nf5 Nb7 Ng3 Nd5 e3 d8Q e2 d7 e1B Na5 Bd6 Qg2 Bc3 Rh5 Rh6 Nf4 Ra7 Bg4 Ka8 Nfh3 Bb8 Be6 Qc4 Ne7 Qg4 Nc8 Bce5 Qe2 Bg2 Rb1 h1Q Qd2 Bgf1 Qg2 Bfd3 Ra1 Bg6 Bf5 Be8 a4 Rc7 Rb1 Rc5 Ba3 Rg1 Rf1 Ba1 Bc1 Bd6 Qc7 Bf4 d8N Bd6 Ndc6 Bde5 Qd2 Rg2 Qcd8 Re2 Be6 Qg2 Bf5 Nh1 Bd7 Bh2 f4 Q2f3 Qd5 Bh7 Qe4 Ra2 Qe2 Bc2 Qg2 Rb2 Ne4 Ra2 Rd5 Rc4 Neg5 Rc3 Qg3 Rc5 Qg2
R1R2n2/4R2Q/n1qknR1b/Bqp3QB/4bp1K/2N2P1P/r1n3N1/b2q2R1 b - - 0 1 legal: proof: c4 b5 e4 bxc4 g4 a5 d4 d5 exd5 h5 a4 hxg4 d6 Ra6 d5 Rb6 Nf3 Rb7 Ng1 Rb5 axb5 Ba6 Ne2 Bb7 Ng1 Bc8 b4 Kd7 b6 g5 b7 f5 h3 e5 b5 f4 b6 a4 f3 e4 Kf2 c3 Ne2 c2 Bd2 c1Q Nd4 g3+ Ke2 a3 Nc2 e3 Ba5 g4 Rg1 a2 Nc3 g2 Ne1 g3 Qd3 Qe8 Qh7+ Ne7 Kd3 e2 Ke4 Na6 b8R Bh6 Ra8 Bb7 Rc8 Ba8 b7 c5 b8R Qb1+ Ke5 Qb5 Kf6 Bc6 Rc1 a1B Rb6 Rg8 Rc2 Rg7 Rb2 Ng6 Kf5 Ba8 Kg4 Nf8+ Kh4 Bb7 Ra8 Qc8 Rb4 Qcc6 Re4 Re7 Rh1 g1N Ng2 e1N Bd3 Ne2 Rg1 Rg7 Re6 Re7 Bg6 Nc2 Bh5 Ned4 Rf6 Qb3 Rb4 Nde6 Ra4 Rg7 Re8 Qbb5 Re7+ Kc8 d7+ Kb8 Bb4 Kc7 Ba5+ Kd6 Ra2 Rg5 Ra3 Re5 Ra2 Re2 d8R+ Qd7 Rc8 Qdc6 Ne3 g2 Ra4 Ke5 d6 Ba8 d7 Kd6 Re1 g1Q Ng2 Qd4 Rg1 Qd1 d8Q+ Qd7 Qe8 Be4 Qeg6 Qdc6 Qg5 Re3 Na2 Ra3 Nc3 Ra2 Bd8 Nab4 Raa8 Na6 Ba5
1R1r1Q2/4K1B1/r3NpQn/1pn1r2k/1PQ1B1Nq/n3bP2/5n2/1n1Qr1QR b - - 0 2 legal: proof: d4 a5 h4 g5 b3 gxh4 Bb2 e5 dxe5 b6 Ba3 a4 Bc1 Bb7 Rh3 Bd5 Rh1 axb3 Rh2 b2 Rh1 Bb3 cxb3 Bg7 Be3 Bh6 Bc1 Bf8 Kd2 h5 Kc3 d5 Kd4 b5 g4 c6 e4 f6 a4 Kf7 e6+ Kg6 a5 h3 b4 h2 a6 h4 f3 h3 a7 Qa5 e7 Qa4 Kc5 d4 Kd6 c5 g5 d3 e5 c4 e6 d2 Ne2 c3 Na3 b1N Nd4 c2 Nc4 Na6 Ne3 Qa5 Ng4 Nh6 Bd3+ Kh5 g6 Nc5 g7 Qa2 g8Q Na3 Qh7 Qc4 Be4 Rg8 Qg1 d1N Bf4 Re8 a8Q c1R Qa4 Nc3 Qad1 Ncb1 Bd2 Rg5 Be3 Re5 Bd2 Nc2 Ra8 Nca3 Rb8 Rc2 Be3 Ra2 Bf4 Qc2 Be3 Qf2 Bf4 Bg7 Bc1 Qh4 Bg5 Rf8 e8Q+ Rf7 Qeg8 Rf8 Ke7 Rd8 Qgf1 Ra1 Qc4 Ra2 Rg1 h1N Bf4 Ng3 Rh1 h2 Rf1 h1R Nh2 Nc2 Re1 Ra6 Rf1 Rd7+ Ke8 Nca3 e7 Bf8 Bc1 Nb3 Ne6 Rg1 Bf4 Nh1 Qg3 Rd4 Ng4 Nf2 Be3 Rd2 Bc5 Rg2 Rh1 Rg1 Qh2 Re1 Qg1 Rdd5 Bd6 Rc5 Kd8 Rc7 e8Q+ Rf7 Qe7 Rg7 Kd7 Rg8 Qeg7 Be7 Qgh8 Bd8 Bf8 Bb6 Ke7 Be3 Bg7 Rd8 Qf8 Nc5 Qg6#
N1RBr1n1/2q2Pn1/2pRn2n/1QpQn3/4B1rk/N5n1/2P3BK/1b1qBB2 b - - 0 1 illegal: No possible last move, all moves rejected
Q1R1rn1R/p1b3P1/N7/q1Nr1R1R/1r1BQ1p1/Pb4r1/k3K1B1/qr2R1r1 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Bd3 Na6 Bc4 Nc7 Bf1 Ne6 Nh3 fxg4 Ng1 g3 Ba3 g4 Bc1 Ng5 hxg5 Qa5 Rh3 Qb6 Rh1 Qd8 c4 Kf7 d4 Ke6 f4 b5 a3 h5 g6 e3 c6 g2 c5 Kd5 g7 e5 f5 h4 c7 h3 c6 e2 f6 Kc4 d5 e4 d6 b4 f7 h2 d7 b3 Bd2 b2 Nh3 g1R Nf2 Nf6 Bc3 Rh3 Qd2 Kb3 Be5 Nh7 Qd4 Rhg3 Nd3 Bd6 f8R Rb8 Rf5 Nf8 Nc3 Rb4 Nd5 b1R+ Kd2 e1R Bg2 Ba6 c8Q Red1+ Ke2 e3 c7 Bc4 Qa8 Qg5 c8R Bc7 d8R Qh5 Nf4 Qg5 Qde4 Be6 Nf2 Rd5 Bd4 Bg8 Ne6 Qh5 Kd3 e2+ Kd2 e1R Nd3 Rbc1 Rb1+ Ka2 Nec5 Bf7 Na6 Be6 Rb3 Rb1 Ndc5 Bg8 Rbf3 Re3 Rf1 Qg5 Qf4 Re8 Re1 Rd6 Qb8 Re5 Re8 Rc1 Rf7 Nh7 Rf6 Bb3 Re4 Rge1 Rh8 Nf8 Nb7 Re8 Qa8 Qa5 Nbc5 Rd5 Rf5 Ra1 Re2 Rf1 Qe4 Rfc1 Rd1 h1Q Rfh5 Qf1 Rf2 Qg1 Rf3 Qe1+ Kd3 Qc3+ Ke2 Rab1 Rff5 Qa1 Rd3 Rh1 Rd1 Rg1 Re1
Qn3N1q/1K3Q2/2n1pq2/p3P3/P1kr1bB1/2rNnq2/R3q2R/B1RRR1n1 b - - 0 2 legal: proof: c4 d5 g4 f5 b4 c5 bxc5 dxc4 h3 fxg4 Qb3 g3 Qd1 g2 Qb3 g5 Qd1 g4 Nc3 g3 Nb1 Bg4 hxg4 Qd5 Rh3 Qd3 Rh1 Qd8 a4 Kf7 e4 Ke6 Ke2 h5 Ke3 b5 d4 a5 f4 c3 g5 h4 c6 c2 f5+ Kd6 e5+ Kd5 c7 b4 c8R b3 g6 b2 f6 e6 g7 h3 f7 h2 Ra2 Qh4 Nf3 g1N Nbd2 b1Q Ng5 g2 Ndf3 Qh6 Be2 Qb7 Bb2 c1N Qf1 Bd6 f8R Ba3 Ne1 Nd3 Bg4 Rh7 Rf2 Nf4 Nd3 Ne7 g8Q Qf6 Rc1 Nec6 Ba1 Rd7 Nh7 Ra7 Re1 Kc4 d5 Bc1+ Ke4 Be3 d6 Nd5 Nf8 Bf4 Qf7 Rd8 d7 Ne3 Qe2 Qb2 Qf3 Qe2 Rff1 Rc8 d8R Rb7 Rd6 Rb3 Rc1+ Rc3 Rfe1 Rd8 Rd5 Nh3 Rd6 g1Q Qg2 Qgf1 Rd5 Na7 Qf3 Ng1 Qg2 Kb3 Kd4 Qff3 Rd7 Rc7 Rd5 Nac6+ Kc5 Rd6 Kb6 Rc8 Rcd1 Kc4 Kb7 Rdd8 Rb5 Rd4 Rb3 Nh3 Rhf1 h1Q Rbb2 Qh2 Rh1 Ng1 Rbb1 Qhh8 Rh2 Rcd8 Qh1 R8d5 Qg2 Rc5 Rbc1+ Kd5 Qh3 Rc3 Qhh7 Kc4 Qe8 Na6 Qa8 Nab8 Qf7
N3b2r/2p1P2R/N2k2pq/5QN1/3KbnPQ/2B1N1b1/1Rq4b/1Bq1qN1n b - - 0 1 legal: proof: f4 d5 a4 e5 c4 dxc4 h4 b5 axb5 exf4 h5 a5 h6 g6 Kf2 f6 Ke1 Na6 Ra3 Rb8 Ra2 Rb6 Ra1 Rd6 Nh3 Rd7 Ng1 Rg7 hxg7 Be6 Rh2 Bd7 Rh1 Bc8 Kf2 Kd7 b4 h5 g4 a4 e4 f5 d4 h4 b6 f3 Ke3 f2 b7 a3 b8N+ Ke7 b5 c3 b6 h3 e5 c2 e6 h2 b7 a2 d5 f4+ Kd4 f3 Nh3 Nh6 g8N+ Kd6 Nd7 Nc5 b8N Bb7 Ne7 Nd3 Bb2 c1Q Qc2 Nf4 Bd3 f1B Bc3 f2 Ng5 Bg2 Na6 f1Q Be4 Qfe1 Nb6 Bc6 Nd2 Be8 Rb1 a1B Nf1 Qd7 Qf2 Qc6 Na8 Qc2 Bd3 Be4 Rb2 Qcc1 Bb1 Qa4+ Nb4 Qac2 Na6 Nf5+ Kc4 Ng3 Kd4 Ng2 Qf5 Nf4 Nc6 Qg2 Ncb4 Be7 Nc2 Bf8 Nce3 Qgc2 Rg1 h1Q Rg2 Be7 Rh2 Bd8 Rh7 Qh6 Nf3 Bh4 Ng5 Nh1 Nf7+ Ke7 d6+ Kf8 d7 Ke7 Ng5+ Kd6 Nf3 Bg3 d8Q+ Kc6 Qh4 Kd6 Rb5 Bb2 e7 Ba3 Rb2 Bh2 Kc4 Bc5 Ng5 Bb6 Nd1 Bf2 Nde3 Bfg3 Kd4
2BqN1kN/1p1p1r2/RB1B2K1/2rQ2B1/r5n1/B5rb/1PP1q2n/4RqqQ b - - 0 1 illegal: No proof kernel forced: wxLB
4bB1r/1QrN2q1/1P1rB1kB/PK6/1n2Q1bp/4p2B/Rp2Bb2/2nRn2N b - - 0 1 illegal: No proof kernel
B5r1/2ppRQ1K/4R1r1/Np1P1Q1n/kn4bR/b1N2q1r/P1Rb4/1R2B2n b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 b4 axb4 c3 bxc3 gxh5 Ra4 Qf3 Ra6 Qd1 Ra8 Ke2 b5 Ke3 g5 Ke4 e5 d4 g4 h4 g3 f4 g2 f6 c2 Kf5 e4 Kg6 e3 f5 e2 f7+ Ke7 f6+ Kd6 h6 Kc6 h7 e1R h5 Bh6 f8R Ra4 f7 Re5 Qg4 Kb6 Nf3 Ka5 Nc3 g1B Nd2 Qe7 Rb1 Nc6 Re8 Bb7 f8Q Nf6 Rh2 Re3 Bg2 Qe4+ Qf5 Rh3 Re7 Rg8+ Qg7 Bge3 h8R Bhf4 h6 Bd6 h7 Ba3 Re6 Rc4 Bf3 Nb4 Re7 Rc6 Nb3+ Ka6 Bd2 c1N Be1 Ne2 Rg2 Ng3 Rc2 Nh1 Bg2 Bd2 Bf3 Rc8 Qf7 Qf4 Bd5 Re6 Bg2 Bf3 Kg7 Bh5 Ba8 Bg4 d5 Qf3 Rg8 Kb6 h8R Rf8 Rh4 Nh5+ Kh7 Rb8 Rg6 Rg8 Nc1 Ka5 Rh6 Re4 Rc6 Re6 Rd6 Reg6 Rde6 Nd3 Nb3+ Kb4 Ne4 Ka4 Na5 Nb4 Nc3+
1QN2bn1/rpRN2p1/pr3BP1/1kb3Q1/B1b2nK1/3r1R2/2PR1RRq/7n b - - 0 1 illegal: No proof kernel
1rrNQ2K/n1k5/7n/1pBBP1Qb/b1qb1p1R/5RnN/1PBBB1p1/4q3 b - - 0 1 legal: proof: g4 c5 d4 cxd4 f4 e5 Nc3 exf4 Nb5 h5 Nxa7 Nc6 gxh5 Nb8 Kf2 g5 Kf3 d5 h4 Kd7 Kg4 b5 Kf5 d3 e4 f3 a4 d2 c4 d4 a5 f2 a6 d3 c5 g4 h6 f6 Kg6 f5 h7 g3 h5 g2 c6+ Kc7 h6 f4 Ra3 Qh4 Be2 f1N Nh3 Be7 Kg7 Kb6 c7 Bd8 Nc6 Bf5 c8B Qe1 a7 Bg5 Nd8 Bg6 Bf5 Nc6 e5 Rc8 a8B Na7 Bd5 Bh5 Qb3 d1Q Bd2 Ng3 Qb4 Bg4 Qe7 Bh4 Qg5 Qc1 Bg6 Qc4 Bge4 Nf6 Rc3 Re8 h8B Kc7 h7 Bh5 Rh2 Ng4 Rb3 Re7+ Kg8 Rd7 Bf6 Nh6+ Kh8 Rd6 Bg6 Rb6 Be7 Rb7 Bc5 Rbb8 Bc1 d2 Rf3 d1B Bd2 Ba4 Bc2 Nf1 Kg7 Bg3 h8Q Bf2 Qe8 Bd4 Kh8 Ng3 Ng1 Qa2 Rh4 Qc4 Nh3
nr1B4/qBb1n2K/3B1B1P/1NR1pp2/2rp1q1N/B2b1Q2/k1P3R1/rQ5b b - - 0 1 illegal: No proof kernel
R3B1q1/BNKBnQ2/4Pp2/1Bb1P3/b4r2/Qr3npN/2b1q1pk/2BR3q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 b5 e4 d5 h4 d4 a4 b3 c4 b4 a5 g6 a6 g3 h5 b2 a7 g2 h6 d3 c6 d2 h7 b3 c5 Ne7 c7 Nbc6 Qf3 d1B Nd2 b1Q Nc4 b2 Na5 Nd4 c6 Bd7 c8B Qa2 c7 b1Q Nb7 Rb8 a8Q Qe2 Qaa3 Bc2 Nh3 Qe8 Qh5 Nf3 Ra2 Rg8 h8B Qd8 Bf6 Rg7 Bh4 f6 Bf2 Qe8 Ba7 g5+ Kg4 Qf7 Qh7 Qg8 Ra1 Qd1 Bb5 Qe2 Rd1 Rg6 Kg3 g4 Kf4 g3 Qh5 Kf7 e6+ Kg7 e5 Bc6 Qf5 Kh6 Bd7 Rg5 c8B Kh5 Ra2 Kh4 Be8 Rh5 Qg6 Rh7 Bd3 B6a4 Qf7 Rh8 Bcd7 Qa1 Nd6 Rb3 Nb7 Qb1 Bce3 Rh5 Ke4 Rf5 Ra1 Nc8 Kd5 Bc5 Bh6 Rf4 B3b5 Qc1 Kc6 Ne7+ Kc7 Kg4 Rd5 Qh1 Rdd1 Rc4 Bc1 Rf4 Nf2+ Kh4 Ne4 Kh3 Ng5+ Kh2 Nh3 Rbb4 Ra2 Rb3 Bb6 Rd3 Qb4 Bab3 Ra8 Ba4 Qa3 Rb3 Ba7
q2b2q1/rN1Q4/4p2N/3pPp2/Q2Knk2/n1R5/RNP1rn1B/BN1b1bN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 cxd4 Bh3 Nc6 fxg5 Nf6 g6 Ng8 g5 Nb8 Bg4 hxg4 Kf2 a5 b4 f5 h4 d3 Ke3 e6 b6 Ke7 b7 Kd6 b5 Ke5 b6 d6 g7 d2 h5 a4 h6 g3 h7 a3 g6 g2 Ra2 Nd7 b8N Qe7 b7 Qd8 Bb2+ Kd5 Rh3 Nb6 Ba1 Be7 Na6 Ra7 b8B Nf6 g8N Ne4 Nc5 Ba6 Nh6 Qg8 g7 Bd8 Na4 Nc4+ Kd3 Bb5 Nb2 Ke5 Rg3 Kf4 Kd4 Ba6 Qe1 d1B Qb4 Bb5 Qa4 Ba6 Nf3 g1N Nf7 Nc3 e4 Nh3 Ng1 Nf2 Nh6 Ne5 Nf7 d5 Nd6 Bf1 Qd7 Nc4 Qa4 Qf7 g8N Qe8 Nh6 Qg8 e5 Nce4 Nb7 Qf7 Bd6 Rg8 h8Q Rg7 Qhe8 Qg8 Rg2 Rg3 Bc5 Re3 Qf7 Re2 Rg3 Ned6 Qfd7 Qg6 Qac6 Qe8 Nf3 Ra8 Kc3 Nd3 Bg1 Qg6 Bh2 Qg8 Kd4 Ne4 Ng1 Ra6 Na4 Ra5 Bc3 Ndf2 Rb2 a2 Qb5 a1Q Qbc6 Qa3 Ra2 Ra6 Ba1 Ra5 Nb2 Qa4 Nd6 Na3+ Qc4 Qc6 Qa4 Qa8 Nb7 Ra7 Rc3+
Q1k1b1NQ/7n/1qRp1N1r/1qQp2p1/r6b/1n1Q2P1/2nB1P1K/R1rQ3B b - - 0 1 illegal: No possible last move
2kQb3/7n/pBRqp3/4Pnb1/Kp2QR2/NQ1P4/3Nbrrr/1Bq3QQ b - - 0 1 illegal: No possible last move, all moves rejected
N4k2/6rp/2qQ2n1/Q3RK1P/2qPQpRQ/1QBnr3/B3b2p/b3rN1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Kd7 h5 Ke7 Qb3 Kd7 Qg3 Ke8 Qh4 gxh4 Kf2 c5 Kf3 f5 g4 a5 d4 c4 e4 a4 b4 h3 e5 c3 g5 a3 g6 a2 e6 h2 g7 c2 d6 Nd7 e7 Nh6 g8Q Ra3+ Nc3 Qb6 Ne2 Nc5 Qg3 Nd7 Rg1 Ra5 Qh4 Nf7 Nd5 Qc5 b6 Rg8 b5 Qb4 b7 Nc5 b8Q Qc4 b6 Nh8 b7 Nd3 Bd2 c1Q Ng3 Ra3 Nb6 Rg7 Na8 Ng6 d7+ Kf7 Rb1 a1R d8Q Q1c3 Rb3 Re1 Qbd6 Qc1 b8Q Ba6 e8Q+ Kg8 Kg2 f3+ Kh3 f2 Qa5 f4 Kg4 Q1c2 Bg2 f1N Rb5 Q2a4 Rd5 Qac6 Qe4 Kf7 Qbb5 Be7 Qb1 Kf8 Re5 Rb3 Bc3 Bb5 Qe6 Ba3 Kf5 Bb2 Qba2 Ra3 Qb3 Ba1 Bf3 Ba6 Bd1 Bb5 Bc2 Ba6 Bb1 Bb5 Ba2 Ba6 Ne2 Bb5 Rg4 Ng3+ Kg5 Nh1 Ng3 Ba6 Nf1 Nb2 Qbc2 Qe2 Bd2 Re3 Bc3 Qeb5 Q6d5 Qb3 Kf5 Be2 Qd1 Qbc4 Qb3 Nd3 Qd6+
nq1Q1Q2/4KNP1/b1Rr1r2/bB2p2n/QpQ3pQ/1P1q1B1R/k7/1rbN4 b - - 0 1 illegal: No possible last move
2Bb4/1n2qP1N/2b1r1k1/2B1pR1n/q2r1P2/3R1BQK/prQ1N1p1/1b1BB3 b - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 h5 g4 hxg4 a4 f5 exf5 bxa4 c4 Kf7 b4 d5 h4 a5 b5 g5 f6 a3 h5 a4 c6 g3 c7 g4 h6 g2 h7 d4 b6 a2 b7 g3 c5 e6 c6 d3 Bd2 a3 Nh3 g1R Ng5+ Kg6 f7 g2 Rh5 Ra4 Qc2 Nf6 Nc3 Nbd7 b8Q Be7 Rd1 a1Q Ne2 Re8 h8B Rd4 Nh7 Bb7 c8B Nc5 c7 Bc6 Rf5 Nh5 Bb7 a2 Ba8 Nb7 c8B Bf6 f4 Qe7 Kf2 e5 Be1 d2 Bg7 Qb2 Bf8 Qb5 Qd6 Rh1 Qa3 Qa4 Qab3 Rh3 Kg1 Rf3 Kh2 Rf2 Kh3 Bh4 Qg3+ Bg5 Rb1 d1B Rc1 Rf3 Ra1 Rb3 Rb1 Rb6 Rb3 Rb5 Rd3 Rb2 Nc1 Bdf3 Be2 Bfd5 Bd1 Be4 Ra3 Bd3 Ne2 Bde4 Qc5 Bb1 Rd3 Qc7 Qc2 Re6 Qf3 Bd8 Bc5 Qe7 Qe3 Na5 Bab7 Be8 Bd5 Nb7 Bf3 Bd7 Qf2 Bc6 Qg3+
4NqrQ/2Qn1PbN/5NB1/pKpk1N1b/6rr/2PN1q2/n2Bp3/qRR5 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Ke7 g4 Ke6 b4 a5 f4 h5 b6 c5 b5 d5 g5 d4 g6 e3 Kd3 h3 Kc4 h4 f5+ Ke7 f6+ Ke6 g7 h2 b7 h3 b6 d3 f7 d2 c3 Ne7 g8N Rh5 Kb5 Qd5 Ne2 Ra6 Nf6 Nec6 Ng3 Rh7 Nf5 Qd6 Bd3 Bg7 Qh5 d1R Nd2 e2 Rb1 Ra8 Nde4 Rg1 Bd2 Rg4 Rhc1 Nd7 b8Q h1Q b7 h2 Qc7 Qf8 b8N Qf3 Na6 h1Q Nb4 Bb7 Qh2 Rhh4 Nh7 Rb8 Bc2 Qd1 Nd3 Nb4 Qh1 Kd5 e6 Na2 e7 Ra8 Ra1 Qdf1 Rcb1 Qc1 e8N Qa3 Rc1 Rb8 Rab1 Qb2+ Ka4 Qa1 Kb5 Qf4 N4f6+ Ke6 Ng3 Rh5 Nf2 Qh8 Nd6 Rgg5 Bg6 Qe8 Nd3 Bf3+ Nb7 Bg4 Nf5 Qf3 Ne4 Kd5 Nf8 Rh8 Qh7 Qc8 Qg8 Rh4 Qh8 Bh5 Nh7 Ra8 Nbd6 Rgg4 Qa7 Qe8 Qb8 Qe7 Qc7 Rg8 Ne8 Qf8 N4f6+
2kqqb1N/2PNn1r1/rnpQKp2/4B1N1/2N1p3/1b3PnB/4Rb2/2R1Q2N b - - 0 1 illegal: No proof kernel
8/1P4r1/q1kq2n1/1n4RR/p1b1BN2/rp2RrP1/1Q1Rp2b/QKB1N1qR b - - 0 1 illegal: No proof kernel
qb2Rr1R/1p5n/b1Bnp1N1/2Q4K/Q1p2P2/3BrPkB/BB4N1/4nqb1 b - - 0 1 illegal: No proof kernel
1rn2b2/1bpQ1bR1/2bQ1RQ1/BQP1r2N/NP2Qp2/p1q3b1/4nk1B/7K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e5 d4 Nf6 Bh3 Ng8 dxe5 gxf4 g5 Qe7 Bf5 Qd8 Bg4 hxg4 Kf2 Ke7 Kg2 Ke6 c4 Kf5 h4 Ke4 g6 f5 c5 a5 b6 d5 e6 a4 h5 d4 h6 g3 b7 d3 h7 d2 g7 Ke3 e7 a3 e8Q+ Be7 Qd7 Bf8 Nc3 Ne7 g8Q Ra6 Qg6 Re6 Nh3 Nbc6 b8Q Nd4 Rf1 f3+ Kh1 f2 Nf4 Re5 Nh5 Qe8 Rg1 f1B Na4 Kf2 e4 Ne2 Qbb5 Bb7 b3 Rg8 h8B Nc8 Bb2 Qf7 Bc3 Qc4 Ba5 Qc3 b4 Bh3 Qdd6 Bf1 Qc2 d1B Qcd3 Bb3 Qdd7 Bc6 Q3d6 Bf7 Bf6 Rd5 e5 Bh3 e6 g2+ Kh2 Re5 e7 Bg4 e8Q Bgf3 Bg5 Bfe4 Bf4 Bb7 Qee6 Bec6 Qed5 Rh8 Qe4 Rg8 Rad1 Rh8 Rd3 Rg8 Rg3 Rh8 Re1 g1B+ Kh1 Bh2 Rgg1 Bg3 Rd1 Bh4 Bh2 f4 Rg5 Bg3 Rf5 Bg7 Rg1 Rhe8 Rf6 Bf8 Qd1 Na7 Q1d3 Rb8 Q3d6 Nc8 Qg8 Bh4 Rg7 Bg3 Qh7 Qd2 Qh6 Qc3 Qg6
3BBQn1/bK6/2BBk2r/r6q/3RBPR1/Q1rPb1b1/bpp1N1p1/3n2N1 b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 Ke2 Kd7 Ke3 c5 h4 b5 f4 g5 a4 e5 a6 b4 a5 c4 d6 b3 d3 g3 h5 g2 a7 c3 h6 b2 h7 g4 a6 g3 Rh3 Nc6 Bd2 Nce7 Qe2 Qe8 Ra4 Qh5 Rd4 Ke6 d7 c2 Bb4 Nd5+ Kd2 Bd6 d8B Ne3 Kc3 Bb8 Rh4 Nd1+ Kc4 e3 Kb5 e4+ Kb6 Bb7 Qf3 e2 Bd6 e1B Rg4 e3 Be2 Bd5 Nc3 Ba2 Kb7 Bd2 Qf2 Be1 Bf3 e2 Bc6 Bd2 Qf1 e1B Be8 Be3 Qf3 B1f2 Nce2 Be1 Qc6 B1f2 Qc5 Be1 Nh3 g1R Qa3 Rh1 Nhg1 g2 Bb5 Ne7 Be8 Rf8 h8Q Bg3 Qg7 Rf5 Qh8 Rc5 Qf8 Ng8 B8e7 Bc7 Bd8 Rc8 a8B Ra5 a7 Bb8 Kb6 Rcc5 Bac6 Rc3 a8B Ba7+ Kb7 Qg5 Bb5 Rh6 Bbc6 Qh5 Be4 Rac5 Ka6 Rb5 Bac6 Ra5+ Kb7
6RB/3nnNK1/qB3r2/2bNQ1nR/npP5/1rPk3p/B2BbpBb/4Q3 b - - 0 1 illegal: No proof kernel
N1N1KR1r/2B5/1B2b1B1/Qp3p2/P2qkbrP/3B3r/Rb5p/nB2n1Qb b - - 0 1 illegal: No possible last move, all moves rejected
Rn1B1bR1/BB3nNN/q4Qp1/1n1br1rp/1P1B1rkp/7B/4n2P/1K5Q b - - 0 1 illegal: No proof kernel
2k2RrR/3Q4/r1Npp3/2Nb3N/r1q4n/Nr2NP1n/p2Q1PB1/KbB3b1 b - - 0 1 illegal: No possible last move
B1B5/3N1qrp/Q1k1b2B/1N5P/1nr1b3/3pBb2/Rnpn1PR1/Kb2B2Q b - - 0 1 illegal: No possible last move
QQ1bqb2/Q2rPB2/1R2RQpp/2b2nrP/n1Q2Nb1/2pB1n1k/7N/1K6 b - - 0 1 illegal: No proof kernel
n5NN/KNkpQ1p1/B3n1RN/r1rnQ1Pr/4P1p1/1rB2N2/q7/b5bR b - - 0 1 illegal: No proof kernel
5Nq1/NKPpr3/3rr1pB/1n3BN1/b1b1Q3/N1QPrNR1/2p1k3/R4bn1 b - - 0 1 illegal: No proof kernel
5B1b/n1p1RrRQ/3rbpNK/2PQ2nB/Pr2b3/Q1N1p3/2Q1Q1bk/6q1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 b4 axb4 e4 e5 fxe5 dxe4 Ke2 Ke7 Ke3 Ke6 Kf4 b5 h4 b3 a4 b2 d4 b4 c4 g6 c5 b3 h6 Bg7 h7 Ra6 h5 Nh6 Qc2 Qg8 Kg5 Rd6 Be2 Nc6 Nf3 Na7 Nc3 b1B Re1 b2 Nh4 Ba2 Bf3 b1B Re3 Bb7 d5+ Ke7 e6 Ba8 Kf4 Kf6 e7 Bb7 e8Q g5+ Kg3 g4 Kf4 g3 Ng6 g2 Re1 Re6 d6 g1R d7 Rd6 Re2 Rf1 Bb2 Nf5 h6 Nd4 Kg4 Be6+ Kh5 Kf5 d8Q Bf6 Ra3 Qg7 Re1 Rg8 h8Q Rf8 Bd1 Nf3 h7 Ng5 Ra1 Qg8 Kh6 Rf4 Bh5 Ba8 Qg7 Rg4 h8Q Bd4 Ne7+ Kf4 Qhh7 Kg3 Ng6 Bb7 Qe5+ Rf4 Qf5 Bh8 Qd5 f6 Bc1 Kh3 Qb8 Bc6 Qbb3 Rf7 Qa3 Bb7 Bd2 Kh2 Rg1 Ba2 Rae1 Bb1 Qd1 Bd3 Qc2 Bf1 Qb5 Bg2 Qe2 Ba8 Rb1 Rg4 Rb8 Bc6 Re8 Bb7 Re7 e3 Be1 Rb4 Bg3+ Kh3 Qdd3 Bbe4 Qd5 Ra6 Bd6 Rc6 Re8 Rcb6 Bf8 Rd6 Re7 Kh2 Bg7 Qc8 Bf8 Qa6 Rf1 Qd3 Rf3 Qd1 Rg3 Qg1 Nh4 Nf3 Rg7 Ng5 Ng6
1Q5K/P1q5/N1pbnp1k/b3Q1R1/N1rn1nb1/NpP4N/1N3bB1/4B1rR b - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 hxg4 f4 a5 b4 axb4 e4 c6 e6 Ke7 f5 Kf6 e7 Qb6 Qd2 Qc7 Qd1 Qf4 e5+ Kg5 Ba3 Qc4 Bb2 Qe6 fxe6 Kf5 Bc1 Kg6 Kf2 d5 Kg3 b5 Kf4 d4 e8N d3 h4 f6 a4 g3 e7 b3 e6 b2 a5 g2 h5+ Kh6 Kf5+ g5 a6 b4 c3 d2 a7 g4 Nd6 g3 e8N b3 Ng7 Na6 Na3 b1N Ndc4 Bd6 Nh3 g1B Bg2 Bf2 Nb2 Nc5 Qe2 Rb8 Ra2 Rb4 Qe5 Rc4 Ra1 Bb7 e7 Ne6 e8N Bc8 Nc7 Bd7 Bd5 g2 Na6 g1B Bg2 Bb6 Ra2 Ba5 Ra1 Be3 Rg1 d1Q Bd2 Qc1 Be1 Nd2 Rh1 Bf2 Ra2 Kh7 h6 Nf3 Ra1 Qd2 Rd1 Qe3 Rd5 Qb6 Rc5 Qc7 Rb5 Nf4+ Ne6 Ng5 Rc5 Be8 Rb5 Bh5 Nec5 Nge6 Nca4 Be8 Rc5 Ne7+ Kg4 Kg6 h7 Rg8 h8Q Bd7 Rd5 Rg7 Qb8 Nf5 Rb5 Nfd4 Rc5 Nd3 Rd5 Kh7+ Kh5 Bc8 Bf1 Rg1 Bg2 Kh8 Kh6 Ndf4 Rc5 Kg8 Rb5 Kf7 Kh7 Bd7 Kh8 Kg6 Rc5 Kh6 Nd3 Ng7 Ndb2 Bg4 Qe4 Nge6 Rg5 Nb5 Qf5 Nbd4 Qe5
3QR3/pk1npPNQ/1rNpQ2B/2b5/n1b3BK/2P2q1Q/QR4bb/4n1r1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b4 g5 h4 d3 f4 d6 Kf2 Kd7 Kg3 Kc7 b6+ Kb7 b5 d2 h5 Qd7 h6 Rh7 f6 Qd8 f5 Rg7 h7 Be6 h8Q Qc7 f7 Qc3+ Nf3 Bc8 f6 Rh7 Na3 Qc4 c3 Nd7 Qe1 d1B Be2 Rg7 Ra2 Nc5 Nh4 Bb3 Rb2 Rb8 Qh7 Na4 Nf5 Qc6 Nc2 Bc4 Nb4 Qe4 Nc6 Qf3+ Kh2 g3+ Kh3 g4+ Kh4 g2 Bh6 Rg5 Ng7 g1N Qeb1 g3 Qa2 Bh3 Rh2 Qe4+ Bg4 g2 Rh1 Ne2 Rhb1 g1B Rf1 Bg2 Rf5 Kc8 b7+ Kc7 Rf2 Nd4 Rf5 Bh2 b6+ Kd7 Rf3+ Qf5 Rh3 Nc2 Rf3 Ne1 Rff2 Re8 b8Q Rc8 Qa8 Rb8 b7 Kc7 Rf1 Qf3 Rg1 Re8 Rf1 Rb5 Qc8+ Kb6 Qe6 Rb3 Nh5 Bg7 f8Q Rb4 f7 Nf6 Rg1 Nd7 Qfh8 Bd4 Ng7 Bc5 b8Q+ Ka6 Qd8 Kb7 Qhf5 Rb3 Qhh7 Rb6 Qd3 Rg8 Qf1 Bh1 Qh3 Bg2 Bf5 Bd4 Nh5 Bh1 Rg3 Re8 Rg8 Bc5 Rh8 Rf8 Nd4 Rg8 Nc6 Rg5 Re8 Rg1 Ng7 Bg2 Bg4
2q2n1Q/4Q3/1B5P/n1bKQbb1/rk1p4/3QPpRr/1pB4Q/NNq1b2R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 Ke7 Ke3 g5 Kd4 f5 a4 b5 c4 d5 h4 b3 a5 f4 e6 g3 a6 g4 a7 f3 c6 Kd6 c7 b2 h5 b4 c5+ Kc6 e7 Kb5 e8Q+ Nd7 c6 b3 Qe7 g2 Be3 g3 Qc2 Bh6 Qd3+ Kb6 Qe5 Nf8 Qe7 Bh3 c8Q Bg5 c7 Bf5 Qb8+ Kc6 Ke5 Qc8 Bb6 Rh7 Ra4 Rh8 Rc4+ Kb5 Rc6+ Ka4 Rg6 Rh6 Kd6 Kb4 Qe5 Ne7 e3 d4 Be2 Nc6 Kd5 Na5 Bd1 Rh7 Ne2 g1B Bc2 g2 Nc1 Bh2 Rg8 g1B Qe7+ Bd6 h6 Bc5 Rg7 Bf2 Rg6 Rg7 Qe5 Bf4 Rg3 Be1 Qe7 Bg5 Qe5 Qe8 c8Q Qd8+ Qd7 Qc8 Qde7 Rg6 Na3 b1Q Qbd6 b2 Nb3 Qd1 Nb1 Qc1 Na1 Rf6 Qf4 Bd7 Rg4 Nb3 Qh2 Rf4 Qg7 Bf5 Rg3 Rh4 Qde5 Rh3 Qd7 Rb8 Bc7 Rb5 Bb6 Ra5 Qde6 Ra4 Qd7 Na5 Qb7 Qc7 a8Q Ng6 Qd8 Qc8 Qdh8 Nf8 Qbe7
1qB3N1/1r5n/2P3RR/2r3q1/b2p3b/ppP2r2/Br1QK1QN/kBB1nB2 b - - 0 1 illegal: No proof kernel
1Qk5/2Nb1q1p/N2Pp1Nn/pq2P1bN/B1Rn1rBn/1n6/K4Q2/3N1R1r b - - 0 1 legal: proof: h4 f5 e4 g5 a4 gxh4 b3 b5 Bb2 f4 axb5 d5 c4 Bf5 cxd5 Bg4 Bd4 Bc8 Be3 fxe3 f4 Kd7 d4 a5 g4 c5 e5 c4 f5 h3 d6 e2 Kd2 e1N Kc1 h2 Kb2 c3+ Ka2 c2 d5 c1Q b4 Qg5 b6 Qe3 b5 Qf2+ Qc2 Qc5 g5 Nc6 g6 Bb7 f6 Kc8 d7+ Kb8 d6 Na7 f7 Qb4 g7 Be4 b7 Nh6 g8B Qe8 d8N Nd3 Ne6 Nc6 Qf2 Nd4 Nh3 Nc5 Nc3 Bf5 Nc7 Ncb3 Be2 Bd7 Rhf1 h1N Nf4 Ng3 Nd1 Ngf5 Bg4 Nh4 Nh5 e6 Rc1 Ra7 Rc4 Be7 f8N Bg5 Bf7 Rg8 Ng6 Qe7 Be8 Qf7 Rc3 Rf8 Rc4 Ra6 Qe1 Rb6 Qf2 Ka7 b8N Kb7 Nba6 Kc8 Ne3 Rc6 b6 Qb5 Nd1 Rc5 Ra4 Rc3 Rc4 Rh3 b7+ Kd8 Qe3 Rh1 Qd2 Qe7 Qf2 Rf4 Nd5 Qf7 Ndc7 Bc8 Bc6 Bd7 b8Q+ Bc8 Qb7 Bd7 Qb6 Kc8 Qa7 Qb7 Ba4 Qb5 Qb8+
B3RrQB/1B1pK2P/2QrppN1/8/3N3r/R1BP3q/n2krB1q/2bnb3 b - - 0 1 illegal: No proof kernel
2B2R2/n1pn3Q/2Q1p2r/K1B1rP2/1R1NkP1B/2Npq2b/B1q1Bn1b/n7 b - - 0 1 illegal: No proof kernel
2q1knQ1/R1p5/3Q3b/5pN1/bpbNN3/1r2PqNK/1r1q1PNR/rB2B3 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 h4 g5 b3 gxh4 Kd2 b4 Ke1 Nc6 Kd2 Na7 Ke1 Nb5 cxb5 a4 Bd2 axb3 Bh6 Qf6 Bc1 Qd8 g4 h5 a4 f5 a5 d5 e6 b2 b6 d4 g5 h3 b7 h2 b8N h4 e3 h3 g6 d3 a6 Rh5 g7 Qd7 e7 Nf6 g8Q Qd4 a7 Qg4 Nc6 Ba6 Nd2 b1R Ne4 Bb7 Nf3 Nh7 Nfg5 Qf3 Nd4 Bd5 Bd2 Rb3 Ng3 Bc4 Ra2 Rd8 a8N Qb7 Ra1 Qc8 Nb6 Rh6 Nd5 Ra6 Be2 Raa3 Bc3 d2+ Kf1 Ra2 Nf4 Rab2 Ra4 Rd5 Ng2 Ra5 Bd3 Ra7 Qa1 d1Q+ Be1 Qd2 Qd1 Ra8 Rg1 h1B Ra7 Be6 Bb1 h2 Qc1 Bd7 Qc5 Bc6 Qd6 Ba4 Nf4 Bf3 Rh1 Be2+ Kg2 Bd3 Kh3 Bc4 Qge6 Bg7 Ng2 Bh6 Qg8+ Nf8 Qf4 Kd7 e8N Kd8 Nf6 Ke7 Nfe4 Ke8 Rb7 Ra6 Qd6 Ra7 Rg1 Ra5 Ra7 Ra6 Nf4 Ra5 Rg2 h1Q+ Rh2 Qf3 Ng6 Bd7 Nh4 Ra1 Ng2 Bc6 Ne2 Ba4 Nd4
Q7/q2nN2q/2pk1NNP/B3N1p1/3qB1p1/QqPqR1r1/2r2RN1/Kb5n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 e4 d5 Be2 Bd6 Bd3 dxe4 Bf1 e3 Bd3 e4 Bf1 Be5 fxe5 Qd4 Na3 Qd5 Nb1 Qd8 h4 Ke7 d4 f5 b4 a5 b6 g5 b5 e2 Kd2 f4 Kc3 e1Q+ Kb2 a4 d5 e3 h5 e2 e6 f3 d6+ Kf8 b7 f2 d7 Ke7 h6 c6 b6 Ra5 Nc3 Re5 Ra3 Qc7 d8N Re4 Nh3 Qd7 Nf7 Qd8 Qd3 Nf6 Bg2 f1Q Bd2 Nh5 Nf4 Re8 Nh8 Qd4 Rh2 Kd6 e7 Bf5 Qg3 Nd7 b8Q+ Kc5 b7 Qd1 Qh3 e1Q Qa8 Re3 Bf3 Qg3 Rf2 Kd6 Ng2 Bd3 Rb3 a3+ Ka2 Qg7 Nd5 Qh7 Ng6 Qf4 Bc3 Qd4 Bd2 Qa7 Ba5 Ng3 Rc3 Rb8 Be4 Nh1 Qf3 Re2 Qe3 Rf8 Qc1 Rf3 e8N+ Ke6 Rb3 Rg3 Nef6 Kd6 Nde7 Rd2 Kb1 a2+ Kb2 Bb5 Re3 a1Q+ Kb3 Qa4+ Kb2 Qb3+ Ka1 Bd3 c3 Bb1 Qb2 Rc2 Qa3+ Nc5 b8N Qd4 Nbd7 Qfb5 Qc1 Qbd3 Nde5 Nd7 Qa3+
n1N1b1B1/3PB1B1/2K2b1Q/4pp1R/n6r/p3BB1n/Pn2q1k1/q1R1QNq1 b - - 0 1 legal: proof: f4 d5 g4 a5 c4 h5 gxh5 b5 e4 bxc4 f5 Ra6 Ke2 e5 Ke1 Re6 fxe6 dxe4 Kf2 Ke7 Ke3 Kd6 d4 Kd5 b4 c5 h4 g5 e7 f5 e8B a4 b5 a3 h6 c3 h7 c4 h5 g4 b6 c2 b7 g3 h6 g2 Bh5 c3 Qe1 Bd7 Ne2 g1N Ng3 Nh3 Nd2 Nf6 Bg4 Qb6 Nc4 Bg7 Nd6 Ne8 Nc8 Na6 b8B Bf6 Bd6 Nc5 Be7 Nc7 Ba6 Qb2 Nf1 Na4 Bb5 Be8 Bc4+ Kc6 Bd2 c1N Bg8 Nd3 Rc1 c2 Rh2 Qa1 d5+ Kb5 d6 Kc6 d7 Ndb2 Ke2 Na8 Bg5 e3 Rh1 Nc4 Kd3 e2 Be3 Ncb2+ Kd2 Nc5 Kc3 Nca4+ Kb4 Bf7 Ka5 Kd5 Kb5 Ke4 Kc6 Be8 Qg3 e1Q Qf2 Nf4 Rh5 Qe2 Qe1 Nh3 Bc4 Rg8 h8Q Rg6 h7 Rh6 Rg5 Rh4 Rh5 Bg5 Bg8 Bf6 B3c5 Kf4 Qg7 Ke4 h8B Kf4 Qh6+ Ke4 Rd1 c1Q Bg7 Qce3 Rb1 Qg1 Rc1 Qee3 Bd1 Qe2 Be3 Kf3 Kd6 Kg2 Kc6 Qd3 Bg4 Qe2 Bf3+
N7/K4kB1/RBpb1p2/3nq1BQ/B2q1n2/4Q1n1/N1Pp1Prn/Bq1Rr3 b - - 0 2 legal: proof: e4 b5 a4 g5 axb5 e5 h4 gxh4 d4 d5 Bd3 Be6 Be2 exd4 Bf1 d3 Kd2 d4 Ke1 Bd5 exd5 Bc5 Nh3 Be7 Ng1 Bf8 Kd2 a5 b4 h5 g4 h3 g5 c6 g6 h2 g7 a4 b6 h4 d6 a3 b7 a2 b5 h3 b6 Qe7 d7+ Kd8 Qh5 Nf6 g8Q Qe5 Nc3 Ke7 Qg3 Ng4 Na4 Na6 b8B Nc7 b7 Nd5 Nb6 Rg8 Qe3 Nf4 d8B+ Ke6 Bbc7 Bd6 Bf6 Rae8 Bg7 f6 Ne2 Re7 Rg1 h1N b8B h2 Na8 Ng3 Bb6 h1Q Nc3 Nh2 Bb2 Qhe4 Rd1 a1Q Na2 Qb1 Ba1 Ba3 Bd6 Ree8 Bdf8 Bd6 Bh6 Rg6 Bfg7 Kf7 Bg5 Q4d5 Bg2 Qc5 Bd5+ Re6 Bb3 Qcd5 Rc1 Re7 Ba4 Qde4 Kd1 d2 Qb3+ Q5d5 Bc5 Ng2 Be3 Qee6 Nc3 Qde4 Bb2 Ngf1 Ke2 d1N Bb5 Qa2 Ra1 Qf4 Kd3 Qb1 Ra6 Qg4 Na2 Nc3 Ba1 Nd5 Kc4 d3+ Bf4 d2 Ba4 Qef5 Ba7 Re2 Qe3 Qe5 Bc5 Ng3 Rd1 Re1 Bcd4 Nh1 Bfh6 Bb8 Kc5 Qge4 Qhg5 Ngf4 Qh4 Rg4 Bg5 Rg2 Qg4 Ng3 Qge2 Nb4+ Kb6 Bd6 Ka7 Nbd5 Bb6 Q4d4 Qh5+
1q2k3/q1R5/bpb1prr1/5QRq/q1P1N3/3QbpK1/BP4BN/2BnB1B1 b - - 0 1 illegal: No proof kernel
4r3/Qp4RR/pPkr4/3bn3/2n2Kpr/RB1NrRnQ/P1q1q3/NR5B b - - 1 2 legal: proof: f4 f5 c4 e5 g3 d5 cxd5 exf4 Qc2 f3 Kd1 f2 Qb3 Be7 Kc2 Ba3 Kd3 Nc6 Qd1 Nb8 Kc2 Bf8 b3 h6 Ba3 f4 Be7 f3 Bg5 Bd6 Kc1 Bf4 gxf4 hxg5 e4 Kd7 h4 c5 d4 g4 Kd2 g5 Ke3 g3 h5 g2 h6 c4 h7 a6 e5 c3 b4 c2 b5 c1N f5 g4 f6 Qe8 d6 Qe6 f7 Qg6 f8R Qf6 d5 Qf5 Nd2 Qh5 Bc4 f1R Bb3 f2 Kf4 Ne7 Ngf3 g1Q Ne1 Ra7 Nd3 Ng8 Rb1 Nh6 b6 Qg2 Rh3 Ra8 Qf3 Qe8 e6+ Kd8 d7 Nf5 Rf7 Re1 Rg7 Nc6 Qe3 f1R+ Rf3 Rg8 h8R Rh1 Rhh7 Ng3 Qe2 Qf2 Qf1 Rh4 Qh3 Rd1 Nf1 Qe2 Ne3 Ne5 Nc2 Qg6 Na1 Re8 Nc2 Nf7 Na1 Ke7 d8R Rd2 Nb4 Qc2 Nd3 Bd7 Rc8 Kd6 e7 Be6 Rc3 Kd7 d6 Bd5 Re3 Ne5 Rf3 Ke6 d7 Nc4 d8Q Rd1 Qc8+ Kd6 Qd8+ Kc6 Qb8 Re1 Qa7 Rad8 Rh8 Rd6 Rhh7 Re6 Nc5 Re3 Nd3 Rd8 e8B+ Rd7 Bg6 Rd6 Nf2 Re8 Be4 Nd3+ Kg5 Ne5 Nd3 Qg2 Kf4 Qh2 Rf1 Re3 Bh1 Qce2 Rf3 Qhg2 Bc2 Qgf2 Ra3 Qh2 Bb3 Qc2 Qb8 Qhe2 Qa7
2B2r1B/1nnnQ1p1/1PB2nP1/bb3b1p/3R4/1r2nB2/k1NN1Kp1/1Q4RB b - - 0 1 illegal: No proof kernel
r1B2n2/2p2b1R/2P5/rQ1k3B/1bp2bBB/2rb1nP1/b1N1R1pN/B2K1Q2 b - - 0 1 illegal: No proof kernel
4BB1R/1r1p2n1/P2qQ2r/1N1P1N1R/3prr1B/k1pK4/3BQrnb/r6B b - - 0 1 illegal: No proof kernel
2Br3k/K1B1NppB/5B2/1r3B2/Qb1rQ3/1b1p1Pn1/1PrRN3/br3R1n b - - 0 1 legal: proof: e4 b5 d4 c5 g4 d5 a3 h5 dxc5 hxg4 a4 bxa4 Bh3 d4 Bf1 Qd5 exd5 Bd7 Qd3 Be6 Qd1 Bc8 Ke2 a5 Kd3 e5 Kc4 e4 Kb5 a3 Kb6 e3 h4 e2 c4 e1R c6 d3 d6 g3 f3 g2 c7 a2 h5 a4 h6 a3 h7 Re2 c5 Nf6 c6 Ra4 Bg5 Ng4 Nc3 Nf2 Bf6 Na6 Rh2 Be6 c8B Rc2 c7 Bb3 Bf5 Nh1 c8B Nc5 Nd5 Rd4 Ne7 Ne4 Ka7 Neg3 Ne2 g1R B1h3 Re1 Rb1 a1R Be4 a2 Bhf5 Rg8 h8Q Rg1 Rc1 Rb1 Qh4 a1B Bh7 Rg2 Bef5 Rc5 Qe4 Rb5 Qc2 Rf2 Rf1 Rg2 Nf4 Re2 Qd1 Rc2 Rd2 Rh8 Ne2 Rg8 Nc6+ Be7 d7+ Kf8 d8B Bb4 Bb6 Rh8 Bhg6 Kg8 Bc7 Rh5 Ne7+ Kh8 Bh7 Rd8 Qc6 Rh4 Qe1 Rhc4 Qa6 Rcd4 Qa4 Ne4 Qh4 Neg3 Qe4
N4NQb/3K4/B1n2Nr1/1bkpP2R/Rnb1P1n1/2pp1r1p/5BN1/q1N2Q2 b - - 0 1 illegal: No proof kernel
7q/N2Q1nq1/1Q2p3/NNNpPkb1/1r2N1bR/1B1q1P1r/p3pK1B/2nR4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 h5 axb5 c5 g4 Rh6 gxh5 cxd4 e5 Rh7 Qf3 Rh8 Qe4 fxe4 b4 Kf7 h4 Ke6 c4 a5 h6 g5 f3 d5 h7 a4 b6 d3 h5 g4 b5 a3 b7 a2 h6 d2+ Kf2 d1Q b6 Qd7 c5 Qd8 c6 Qd6 c7 Ra3 Bc4 Bg7 Rh4 Qd3 Nd2 Qc3 Bb3 Qd8 Ne2 Na6 b8N Qd3 b7 Ra4 Nd7 Kf5 b8N Bf6 Nc3 Rb4 Nb5 Bg5 Nc6 Nc5 Na5 e3+ Kg3 e2 Kf2 Kf4 Ne4+ Kf5 Bf4 Qe8 Bh2 g3+ Kg1 g2 Kf2 Qh5 Rd1 Qe8 Ba4 Nb3 Ndc5 Be6 c8N Nc1 Nca7 Qc8 Bb3 Bd7 Rf1 g1Q+ Ke1 Qh1 Kf2 Qf8 Re1 Qg7 Rd1 Nf6 N7c6 Ne8 Nca7 Rg8 h8Q Nd6 h7 Nf7 Na3 Rc8 Qe8 Rc6 h8Q Rh6 N3b5 Rh5 Rg4 Rh3 Rh4 e6 Qef8 Be8 Rh7 Rh4 Qe7 Nh6 Bg3 Bh5 Qb8 Bg4 Qd7 Nf7 Rh8 Rh7 Qb6 Qh5 Re8 Rh8 Bh2 Qhh7 Rb8 Qhg8 Re8 Rh3 Rd8 Q8h7 Rh8 Qhg8 Rh5 Q8h8 Rh4
RBqr1n2/Nq4b1/Q2pN1b1/2p3RN/1Nn1Pp2/2BP2r1/3bQ1pK/N4k2 b - - 0 1 legal: proof: f4 h5 g4 e5 fxe5 b5 gxh5 a6 c4 Nc6 b4 Nb8 Bg2 Nf6 Bc6 bxc4 b5 Ng8 b6 Rh7 Ba4 Rh8 Bb5 axb5 Kf1 Ke7 Kg2 Ke6 a4 Kd5 h4 Ke4 a5 g5 h6 f5 a6 c5 e6 c3 a7 g4 d3+ Kd4 e4 g3 h7 c2 e7 b4 e8N b3 b7 b2 h5 Nh6 Nc7 Qh4 Nd5 Qg4 Nh3 Rg8 h8Q+ Bg7 Nd2 b1Q Nb3+ Ke5 Qe2 Re8 Nhf4 Nf7 h6 Nd6 h7 Rg8 Nb4 Nc4 Rg1 d6 Ne6 Qb2 Bd2 Nd7 b8B c1B Ra6 Nf8 Na1 Bd7 Kh1 Be8 Rg2 Kf6 Bc3+ Kg6 Ra5 Kh5 Ra4 Kh4 Ra3 Be5 Qg7 Kh3 h8N Bd2 Qb7 Qb3 Ng6 Bg7 Qa6 Qb2 Nc6 Qb7 Nb4 Qh4 Ra5 Qd8 Ra2 Qdc8 Ngf4+ Kh4 Nh5 Kh3 Bc7 Rb8 a8N f4 Nb6 Bg6 Ra4 Qd7 Kg1 Rd8 Nc8 Qe8 Na7 Qec6 Bb8 Qcc8 Rf2 g2 Rf3+ Kg4 Rg3+ Kh4 Rg5 Kh3 Kf2 Kh2 Kf3 Kg1 Kg4 Ne3+ Kh3 Nc4 Qg4 Kf2 Kh2 Kf1 Qa5 Kf2 Re5 Bf5 Nb5 Bh8 Qb6 Ke1 Ra8 Kf1 Qa6 Rg6 Na7 Bg7 Rd5 Rg5 Re5 Bg6 Qd1+ Kf2 Rf5 Rg3 Qg4 Ke1 Rg5 Kf1 Qe2+
2BR2NK/4br2/nRRpq2P/Bpr1p1pn/4b3/Q3N2q/k2PQ2n/2R2R2 b - - 0 1 legal: proof: e4 b5 a4 h5 g4 f5 exf5 hxg4 b4 c6 axb5 Rh6 b6 Rh8 b5 cxb5 Ke2 Kf7 Kd3 e5 Ke4 a5 h4 g5 c4 g3 f4 a4 h5 a3 h6 a2 b7 g2 f6 Ke6 f5+ Kd6 f7 Kc5 f6 Kb4 Kf5 Be7 Kg6 Nc6 Kg7 Nb8 f8Q Qa5 f7 Qc7 c5 Nf6 c6 Ra3 Bb2 Bc5 Nf3 g1N Ne1 Qd8 c7 Ne2 Nc2+ Kb3 Bc3 Nf4 Ba5 Na6 b8R Bb7 c8R Qe7 Bh3 Be4 Qe2 Ng4 Rf1 Nh2 Rc6 Rh7+ Kg8 Qd6 Rbb6 Nh5 Nc3 Ra4 Rac1 Rc4 Qe7 Bb4 f8R Rf7 Kh8 Qd5 Qe6 Be7 Rd8 d6 Q6g4 Rc5 Qg3 Kb2 Bc8 Qe6 Nd5 Qh3 Nf6 a1Q Qgd3 Qa2 Ng8 Qae6 Ne3 Ka2 Qa3+
N3Bb2/R1KNNb2/q1PpRPr1/k1B4Q/p6n/1n1r1pQ1/p2rN3/4q1N1 b - - 0 1 illegal: No proof kernel
q1B2K1k/7b/1pRN2R1/br2p3/1Ppp2Qb/Q2BPR2/1n1rq1R1/1R1N3n b - - 0 1 illegal: No proof kernel
1R2bRN1/1r1k2pN/1np3B1/2q1q1pK/Pn2Q2B/3qp1P1/2r2R2/R1R1b2Q b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 h6 Qg4 Na6 Qg3 Nb8 Qg5 hxg5 Ke2 b5 Kf3 e5 Kg4 e4 a4 c6 f4 b3 h4 b2 d4 e3 h5 b4 h6 b3 d6 Bb7 h7 Qf6 d5 Qe5 d7+ Kd8 f6 Ra7 f5 Qe7 f7 Qe4+ Kh5 Be7 f8R+ Kc7 d8R Qe6 d6+ Kb6 f6 Ra5 d7 Kc7 f7 Bf6 Bd2 Bc8 Nc3 b1Q Nge2 b2 Ne4 Ra6 N2c3 Qc2 Bd3 b1Q Rc1 Rb6 Be1 Ne7 Bh4 Na6 Rde8 Be5 Nf6 Nb4 Bg6 Bg3 Ng8 Qe5 Ne4 Be1 Nef6 Qcc5 d8R Qbc2 Rd2 Ned5 Rf2 Bd7 Ra8 Kd6 Rfb8 Rb7 f8Q+ Kc7 Qe7 Qd3 Rf8 Nb6 Rab8 Qb2 Qe6 Be8 Qe4 Qbe5 Ne7 Rg8 h8Q Kd6 Nh7 Kd7 R8f5 Rf8 Ng8 Rf6 R5f4 Rd6 R4f3 Rd4 Rf8 Rc4 g3 Qb1 Qh1 Qe6 Ne7 Qd3 Qg8 Qed6 Qgd5 Rc2 Qde4 Qde5 Ng8
b2QK2Q/4P1Q1/qp3pR1/2r1NB1p/3p4/rkqnQPN1/3bQRB1/r2n4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Bd6 h4 gxh4 b6 Bf8 b4 Bc5 b5 Na6 b7 Qg5 b8Q Qe3 b6 Qg5 b7 Bf8 Be3 Qd8 Bb6 cxb6 Kd2 Ke7 Ke3 Ke6 Ke4 h5 c4 f6 g4 h3 g5 d6 f3 h2 g6 Qc7 c5 Qg7 c6 Nc7 Nd2 a5 Bg2 a4 Nc4 a3 Ra2 Nb5 c7 Qe7 g7 Bd7 c8B Nh6 g8Q+ Nf7 Qg7 d5+ Kf4 d4 e4 Rg8 Ne2 Qc5 Ng3 Nc3 Rf2 a2 Qe2 a1R Rg1 h1Q Qc7 Nd1 b8Q Qc6 Qd8 Bb4 Qe3 R8a5 Qa8 Rb5 Qa2 Rh8 Qae2 Rh7 Qdh8 Rc5 Qd8 Bd2 Qdh8 Ke7 e6 Qh2 Ne5 Kd6 Kf5 Qa4 Kg6 Qa6 e7 Bc6 e8Q Ba8 Nc6 Qh1 e5+ Kd5 e6 Ne5+ Kf5 Nd3 Kg6 Kc4 Kf7 Qh2 Qd8 Kb3 Ne5 Qh4 Ke8 Qe4 Qgg5 Ra7 e7 Qd5 Bch3 Qdc4 Bf5 Qc3 Qgh6 Qc8 Q6g7 R7a3 Rh1 Qb7 Rh4 Qa7 Rg4 Qa6 Rg6
3BRB1n/K1pq2nB/1p4Q1/1b3rpN/Prp2BbB/1PRr4/4QN1q/2k5 b - - 0 1 illegal: No possible last move
3rr1BQ/1bpNN2P/p3nQ1K/4Np1n/1kPB4/3bN2q/3pR1R1/Nr2q3 b - - 0 1 legal: proof: d4 h5 a4 e5 e4 exd4 f4 b5 axb5 Nc6 g4 hxg4 e5 Bd6 e6 Be5 fxe5 Nb8 Ke2 Ke7 h4 g5 b4 f5 b6 d5 b5 a6 b7 d3+ Ke3 g3 b6 d2 h5 g4 Kf4 g2 Kg5 d4 h6 g3 h7 d3 Nf3 g1R Ra2 g2 Rh2 Qd5 Bb2 Ra7 Na3 Bd7 Qa1 Nc6 b8N d1B b7 Nb4 Nc6+ Ke8 b8N Bc8 e7 Ra8 Nd7 Nf6 Kh6 Bb7 c4 Rc8 Nc2 Nh5 Be2 Kf7 e8N Ke6 Nef6 Rcd8 Ng4 Qd4 Bc3 Nd5 Rb2 Qf2 Nge3 Ndf4 Ra2 Rh1 Qb2 g1Q Na1 Qh4 Rg2 Rhg8 Qb6 Bb3 Bd4 Qh3 Rd2 Bc2 Bd1 Kf7 e6+ Ke8 Rdf2 d2 e7 Bd3 Nfe5 Qf1 Ba4 Qe2 Bb5 Rb1 Ba4 Qe1 Bc2 Be2 Be4 Bd3 Re2 Rf8 Ng6 Kf7 Nge5+ Ke6 e8Q+ Kd6 Bd5 Rg8 Ng6 Rh8 Nge7 Rg8 Qf8 Rh8 Qg7 Rhe8 Bg8 Ra8 Qh8 Rad8 Qb2 Ne6 Ba7 Bc8 Qbf6 Bb7 Nb6 Kc5 Ne5 Kb4 Nbd7 Nc5 Bb6 Ne6 Bd4
1n3bQB/n2N1N2/4QpKn/3rpR2/4bPpR/N2qPp1n/3N1BN1/2rk4 b - - 0 1 legal: proof: f4 d5 c4 b5 cxd5 h5 a4 Na6 axb5 Nb8 g4 hxg4 Bg2 Nd7 Be4 Nb8 Bf3 gxf3 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kb4 h4 g5 h5 a5 d6 c5 b6 e6 h6 a4 h7 g4 d7 a3 e3 c4 b7 c3 d5 a2 d6 c2 Nh3 Kb3 Nf2 Bg7 Qd5+ Ka4 b4 Bf8 b5 Qh4 d8N Qh5 d7 Ra7 b6 Qh4 Na3 Ra5 Bb2 c1N Bg7 Qe7 Rh4 Nh6 Qf5 Rg8 h8N Kb3 Ng6 Ne2 Bh8 Qd6 Rd1 a1N Rd5 Rg7 Qf6 Rc5 Rf5 e5 Qe7 Rd5 Qe6 f6 Nf7 Kc3 d8B Kd2 Bc7 Nc6 b8Q Ng1 b7 Nc2 Ba5+ N2b4 Qa8 Kc1 b8N Nh3 Nd7 Na6 Be1 Bb7 Qae8 Nab8 Qd8 Be7 Qg8 Bf8 Nd1 Na6 Bf2 Nab8 Nb2 Na7 Nbc4 Kd1 Nd2 Bc6 Rhh5 Bb7 Nh4 Qa6 Ng2 Qf1 Nd6 Re7 Rh4 Rg7 Nc5 Rc7 Nd7 Rc1 Rg5 Nf7 Kf5 Nh6+ Kg6 Qd3+ Rf5 Rd4 Nf1 Be4 Nf7 Rd5 Nd2
3qnn2/2pPBpb1/npRnQP2/6QB/r1N1Q3/k1bKQ1p1/r2R4/Q3N3 b - - 0 1 legal: proof: c4 h5 e4 d5 exd5 b6 g4 hxg4 d4 Bf5 d6 Kd7 c5 Ke6 d5+ Kf6 b4 a5 c6 Bd7 cxd7 axb4 Kd2 Ke5 h4 Kd4 f4 Kc5 a4 g5 a5 e5 f5 b3 a6 Kb4 h5 b2 a7 g3 h6 g2 h7 e4 Qb3+ Kc5 Rh6 e3+ Kd3 e2 Ra2 e1B Be2 g4 Nd2 b1N Nc4 g3 Ba3+ Bb4 Rd2 Kb5 Nf3 g1N Ne1 Nf6 Bh5 Ne2 Qc3 Rg8 h8Q Ka4 Qe5 Na6 Qe3 Ne8 Qa1 Nd4 Qe6 Qc8 d8Q Rg4 d7 Nc3 d6 Bg7 Qde7 Ne4 d8Q Bc3 d7 N4d6 Qe3 Re4 Qe6 Rf4 Qg5 Qd8 Rh2 Rf2 Bb4+ Ra2 Rd2 N6b5 Be7 Nbd6 Qd5 Ne6 Qde4 Nf8 Qe6 Rb8 a8Q Kb3 Qae4 Ra8 Qc1 Nb8 Qa1 R8a4 Q4d5 Na6 Q6e4 Nb7 Rc6 Nbd6 f6 Kb4 Qde6 Kb3 Ne5+ Ka3 Nc4+
4rBKR/rnp1r3/4Qq1N/1bBp4/1n1P1R1Q/p5k1/P3q1pn/1R2N1RR b - - 0 2 legal: proof: f4 b5 g4 f5 gxf5 h5 e4 e6 c4 bxc4 e5 Ba3 Be2 Be7 Bg4 Bf6 exf6 hxg4 Ke2 Kf7 Ke3 g5 Kd4 a5 Ke5 d5 b4 c3 d4 c2 h4 g3 h5 g2 b5 a4 b6 g4 b7 g3 h6 Qf8 h7 Nh6 Ne2 g1N Na3 g2 Ng3 Na6 b8R Qe7 Rbb1 Re8 h8R Bd7 Bb2 c1Q Nc2 Bc6 Ne1 Bb5 Ba3 Qd2 Bc5 a3 Qe2 Nb4 Qd1 Ng8 Qe2 Ra7 Qh5+ Kf8 f7 Kg7 f8R Nh6 Qh3 Qh4 f6+ Kg6 f5+ Kg5 f7 Qd1 f6 Nf5 Qh2 Nd6 Nf5 Nb7 Nh6 Kh5 Rfg8 Qd2 Rg4 Qe2+ Re4 Kg5 f8Q Qhf2 f7 Qh4 Re3 Qhf2 Qd6 Re7 Ng8 Kg4 f8B Nf3+ Kf6 e5 Qh5+ Kg3 Re4 Nh2+ Rf4 e4 Qe6 e3 Nh6 Re8 Kg7 Qff3 Re4 Qf6+ Kg8 Qc2 Qhf5 e2 Qh5 Qd1 Rf4 Qd2 Nd3 e1R Rg1 Re5 Ne1 Qe2 Rh1 Nd6 Qd7 Nc6 Rb2 Rea8 Nd3 Rb8 Rag1 Re7 Qe6 Rbe8 Ne1 Nb7 Rb1 Nb4 Qh4+
1r1RR3/B1rp1b2/4BPpN/1B1q3b/1K1bq1nB/Q1pp4/2PB1rNk/1Q6 b - - 0 1 legal: proof: g4 b5 d4 e5 a4 exd4 axb5 g6 g5 Nc6 h4 Nce7 h5 Nf5 h6 Ng7 hxg7 f6 Rh5 fxg5 Rh1 g4 Kd2 Ke7 f4 Kd6 b4 c5 e4 a5 f5 Ke5 f6 Kf4 e5 Kg3 e6 h5 b6 c4 e7 c3+ Kd3 h4 Kc4 a4 e8Q a3 b7 h3 b5 a2 b6 h2 Na3 Qe7 Bd2 Rb8 Qb1 Nh6 g8B Qe4 Nf3 Bc5 Qe7 Rh7 Be6 d3+ Nd4 Rh8 Bg2 Rf8 Rg1 h1B Re1 Kh2 Kb3 g3 Nf5 Bf2 Nc4 Ng4 Kb4 Bd4 Nce3 Rh8 Bf3 g2 Nh6 g1R Ng2 Rf1 Qc5 Rg8 Qa5 Rf2 Qa3 Qf4 Bc6 Qe4 Bb5 Rd8 Nh4 Bf3 Ng2 Re8 Bb3 Re5 Be6 Rc5 Re2 Rc7 Re3 Ra8 b8B Bb7 Ba7 Bd5 b7 Re8 b8B Bb3 Bf5 Bf7 Be6 Rc8 Bb6 Bd1 B8a7 Rb8 Re2 Ne5 Re1 Bh5 Bc5 Ng4 Bd6+ Kh3 Bg3 Qd5 Bh4 Kh2 Re5 Qe4 Bb3 Qd5 Re8 Qe4 Be6 Qd5 Qe1 Qe4 Rb1 a1Q Qf1 Qd5 Re1 Qd1 Rd8 Q1f3 Re5 Qfe4 Qb1 Rf4 Bf5 Rf1 Ree8 Rf2 Be6
knn2R2/1pNb3p/P3n1r1/R4R1n/p1n5/prR1R2Q/qPN1KBQ1/3B4 b - - 0 1 illegal: No proof kernel
2nB1r2/1PRn1pQ1/NN3PpQ/p2B4/2n1krrq/1p6/R1N2n2/1NKb1N2 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 g5 b5 g6 e6 a3 hxg6 Bg2 g5 Bh3 g4 Bf1 Bd6 Ke2 Be5 Ke1 Bc3 bxc5 b4 Be2 b3 Bf1 Bb4 axb4 Kd7 Ne2 Ke7 Ng1 Ke8 h4 Kd7 d4 Kc6 Kd2 Kd5 c4+ Kc6 f4 a5 b5+ Kb7 h5 g3 f5 g6 h6 e5 d5 g2 h7 Qe8 c6+ Kb6 d6 Kc5 d7 Kd4 d8N Ne7 c7 Nd7 c5 Ba6 c8N Nd5 b6 Rb8 b7 Bd3 c6 Qe7 c7 Qe6 Ra2 N5b6 Ne2+ Kd5 Nd6 g1R c8N Qf6 Bh3 Rg4 Ne6 Bc2 N6d4 Qh4 Ng3 Rf4 Qf1 Bd1 Ne8 Ra8 Ba3 e3+ Kc1 e2 f6 e1N Be7 e4 Bd8 e3 Nc2 e2 Nc7+ Ke5 Na6 Nf3 Qg1 e1N Qh2 Nd2 Be6 Ndc4 Nf1 Ke4 Qh3 Rf8 h8Q Re8 Qg7 Rb8 Ne7 Nc8 Nd5 Rh8 Rh2 Rh5 Rf2 Rg5 Nb6 Rgg4 Rd2 Nf3 Rd5 Ng5 Rc5 Ra8 Qh2 Nh3 Rc7 Nf2 Qh3 Qg5 Qhh8 Qh4 Qhh6 N8d6 Be7 Rf8 Bd8 Nc8 Bd5+
b2qk2b/1R2R3/4N3/rpp1pQp1/RPP1R3/B1nr1BQN/rb4K1/R5b1 b - - 0 2 legal: proof: e4 h6 e5 h5 d4 e6 d5 f6 dxe6 fxe5 g4 hxg4 a3 Nc6 a4 b5 a5 Nb4 Qd3 Nd5 Qd1 Nb6 axb6 Ba3 Nh3 Bc5 Ng1 Bf8 c4 d5 b4 a5 f4 g5 Kf2 c5 h4 d4 e7 d3 f5 g3+ Kg2 a4 h5 d2 b7 a3 b8R a2 f6 Bb7+ Qf3 d1R f7+ Kd7 e8R Ra6 h6 Rb6 h7 Rd4 Be2 Bh6 f8Q Ne7 Ba3 Ra6 Nd2 Nd5 Rh4 Rd3 Nb3 Ba8 Nh3 Ra5 Nd4 Bg7 Re4 Nc3 Ne6 Rg8 Qg4 Bh8 Qff5 Rg6 Bf3 Rf6 Kg1 g2 Qg3 Rh6 Kf2 g1B+ Kg2 Rh4 Rb1 a1B Rb7+ Qc7 Rf1 Bb2 Ra1 Rh5 Rd8+ Ke7 Rd7+ Ke8 Rf7 Qd8 Rfd7 Rh6 Rf7 Rf6 Rfc7 Bg7 h8R+ Rf8 Rh7 Bh8 Rc6 Rf7 Ra6 Rc7 Rf7 Rc6 Raa7 Rca6 Qf2 Ra4 Qg3 Bc1 Bb2 Ra2 Rg7 Bf2 Ba3 Bb2 Rgc7 Bg1 Rh7 Rad6 Ra5 Ra6 Ra4 Ra5 Rhe7+
2RRr2n/3QBRb1/3pp1b1/N2P1Np1/pr2p2P/1q3kQR/n2K1Br1/4R3 b - - 0 1 illegal: No possible last move, all moves rejected
Nn5Q/qnnk3N/Rn1QrQ1b/1r1q2B1/2B1p2p/R2rPq1P/Q3b2K/7Q b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 f4 a5 Kf2 g5 Kg3 d5 b4 e5 c4 h5 f5 a4 b6 e4 c5 h4+ Kg2 g3 b7 a3 h3 d3 c6 d2 c7 a2 b5 g4 f6 d4 b6 d3 f7+ Kd7 Rh2 Ra5 Qa4+ Rb5 Qd1 Ne7 Nf3 Rh6 Ba3 Nd5 Qc1 d1R Nc3 d2 Ng5 Re6 Nh7 Bh6 f8Q Qf6 Kg1 g2 Be7 Qf7 Rh1 Qf3 Kh2 g1N e3 Ne2 Qh8 Nef4 Na4 Nd3 Qc2 Nc5 Bg5 Nca6 Qf6 g3+ Kg1 g2 Kh2 g1N Bc4 Ne2 Qcb2 Nc1 Qb1 Nc6 b8Q Nb3 b7 Nba5 Qa7 Nb6 b8Q Bb7 Qbh8 Ncb8 Qd3+ Bd5 Qb1 Nb7 c8Q+ Kd6 Rg1 Nc7 Qcf8+ Kd7 Rf1 Re1 Rf2 d1Q Rd2 Qb3 Rd3 Rd1 Rc3 Rd3 Qh1 Qbd1 Ra3 Qb3 Rf1 a1Q Qa6 Qd4 Rfa1 Bc6 Qa5 Qd5 Qd2 Qb4 Qa2 Qa5 Qb4 Qa7 Qbd2 Kd6 Qdd1 Be8 Qdd2 Bh5 Qdd1 Nc8 Nb6 Bg4 Na8 Kd7 Ra6 Bh5 Qab2 Nb6 R1a3 Qf1 Qbb1 Be2 Qa2 Qf3 Qdd2 Bd1 Qb4 Be2 Qd6+
3n1br1/r1qb1p1R/2BrQK2/1p1NQPB1/3nqn1Q/1Pr4R/Q1N5/3k2Qq b - - 0 1 illegal: No proof kernel
2N2N1b/2R4p/N1B2rq1/p2kn1qP/KR1b4/P2Q1b1N/1qrBQ3/2r1qN1n b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 Ba6 fxg4 Bb5+ Qd7 Bf1 Qd8 h4 Kf7 c4 Ke6 f4 b5 d4 g5 Kd2 a5 Kc3 e3 Kb3 e2 c6 e1R a3 b4 h5 g3 c7 g4 c5 g2 f5+ Kd5 f6 e5 c6 e4 f7 g3 Rh4 e3 Qg4 e2 Bh6 Nd7 Qf5+ Ne5 Rg4 Qg5 Nh3 g1B Qd3 g2 Ka4 b3 Nd2 b2 Rc1 Bg7 f8N Bb7 c8N b1Q c7 Ra6 Na7 Qg6 c8N Ne7 Nb5 Nf5 Rc7 Rc1 Bg5 e1Q Qe2 Bf2 Bf4 g1Q Bg2+ Qe4 Bg5 Ng3 Nf1 Rf6 Bd2 Nh1 Rf7 Kc6 Nca7+ Kb6 Nc7 Qgf5 Nfe6 Rc8 Nf8 Bh8 Na6 Qb1 d5 R8c2 d6 Qg6 Rc7 Qb2 d7 Bc5 d8Q Qe3 Qf3 Qeg5 Qdd3 Bf2 Rgc4 Bd4 Qfe2 Ba8 Bc6 Bb7 Bb5 Bf3 Rb4 Re6 Nb8 Rf6 Bc6+ Kc5 Na6+ Kd6 Bb5 Kd5 Nc8 Q5f5 Be8 Qfg5 Bc6+
r1R1n1N1/Rr1bpq2/2B1k3/Qn2n1K1/3bRB1p/1Qrq3r/b2RP2P/6NR b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 Kd2 Kf7 f4 h5 b4 a5 c4 g5 c5 d5 c6 g3 b6 g4 b5 a4 b7 d3 Ke3 g2 b6 g3 f5 d4+ Kf4 a3 f6 d2 c7 a2 Qa4 d1B Nh3 g1Q Nf2 g2 Nd3 Ke6 f7 Bg7 f8R Bd7 c8Q Bb3 Qc7 Nc6 b8R Nf6 b7 Ne5 Qca5 Qf2+ Kg5 g1R+ Bg2 Ne8 Nb4 d3 Bf4 d2 Rc8 d1N b8R Nc3 Nd5 Nb5 Nd2 Rc1 Nf6 Rc3 Ng8 h4 Rad1 a1R Bc6 Ra3 Rb7 Ba2 Nf3 Rb8 Rbc7 Rb7 Ng1 Rh3 Rd2 Rac3 Ra8 Qf3 Rcc8 Qd3 Qc2 Qb6 Ra7 Qf2 Be3 Qf7 Bf4 Nc4 Qb1 Bd4 Qb2 Ne5 Qc2 Qfh7 Rf5 Qf7 Qb3+ Nc4 Rd5 Ne5 Rc5+ Kd6 Rc4 Ke6 Rb4+ Qc4 Qba4 Nec7 Nf6 Be3 Rb8 Qd3 Re4 Bd4 Q4b4 Rc8 Ng8 Ne8 Qb2 Rcc7 Rd8 Rc8 Qbb4 Rcb8 Rc8 Ra8 Qb3+
n3bnBr/BqpBb3/1bR2r1Q/B1P1rBKp/R5n1/1N3b2/4k2P/Q2N3n b - - 0 1 legal: proof: d4 e5 f4 exd4 a4 b5 axb5 g5 Be3 gxf4 Bd2 Bd6 Bc1 Bf8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 c4+ Ke4 b4 h5+ Kh3 f5 g4 d5 g5 a5 Kh4 d3 e3 a4 b6 d4 b5 f3 b7 f4 b6 d2 Bb2 a3 Qc1 d1N Qd2 f2 Qe2 d3 Bc3 d2 Bg2+ f3 Nh3 f1R Ba5 a2 Qe1 Kd3 e4 f2 e5 Nd7 b8Q Nc3 b7 d1B e6 Bf3 e7 Ngf6 e8B Ncd5 g6 Be7 g7 N5b6 g8B Nf8 Kg5 Bd7 Nd2 Qc8 Nb3 Bb5 Rc1 a1B Bd7 Bd4 Rc2 Ra6 Qa1 Re1 Qa8 f1N b8B Qb7 Nf2+ Ke3 Ba7 Ng3 Bgh3 Bbc6 Qc8 Na8 Bhf5 Bb6 Ra2 Re2 Rc1 Nh1 Ra4 Re1 Qe8 Ke2 Qg6 Ng4+ Qgf6 Bb5 Nd1 Bbc6 Bde6 Be8 Bd7 Bb4 Qh6 Be7+ Kf4 Bf2 Rc3 Rf6 Kg5 Bb6 c5 Kf1 Rd3 Re5 Rd6 Ke2 Rc6
1BQ2rQK/Q1p2b2/q1k1n3/4nb1n/QrP2R1p/1B2b1N1/1rQ1R1rP/nN6 b - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 g5 Bd3 gxf4 Bc4 Qd7 Bf1 Qd8 Kf2 Kd7 b4 h5 d4 f5 g4 a5 b6 e5 g5 e3+ Kf3 h4 c3 a4 g6 e2 b5 e1N+ Kf2 a3 g7 e4 b7 a2 d5 f3 Ke3 f2 Kf4 e3 Ke5 f4 d6 e2 b6 f3 Be3 Nf6 Na3 Na6 b8Q Nc5 b7 Ra4 Qa8 Rb4 b8Q Nh5 Qd3 Rb2 Qc2 Rg8 Kf5 Ned3 Kg6 Be7 Kh7 Bg5 Re1 a1N Nb1 Ne5 Qb6 Rf8 g8Q Qf6 Bh3+ Qe6 Kh8 f1B Qba6 f2 Qaa4+ Nc6 Bd4 Be3 Bg2 Rf4 Bd5 Bh3 Q8a6 f1R Bb3 Bg2 Qb7 Bd5 Qba8 R1f2 Rf1 e1R Ne2 Re4 Ng3 Rf8 Rf4 Re2 Re1 Rg2 Re2 Qg6 Qb8 Bf7 Qba8 Qe6 Qb8 Qc4 Qb7 Qa6 Qa8 Ne6 Ba7 Rb4 Bb8 Bb7 Qa7 Ba8 c4 Bb7 Qa5 Ne5 Qa3 Be4 Qa4+ Kd8 d7 Bf5 Qa8 Ke7 Qa7 Kd6 d8Q+ Nd7 Qc8 Ne5 Qa3 Kc6 Qa4+
2nb3r/Q2BqRb1/p1R3b1/1p1Nb3/3R1Bkp/4rb2/P2R2nP/n1Q2RKN b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 bxc5 g5 Qh5 gxf4 Qe2 Qa5 Qd1 Qd8 Kf2 Kd7 g4 Ke6 c4 h5 d4 b5 g5 Kf5 c6 e5 g6 h4 g7 a6 c7 e3+ Kg2 f3+ Kh3 e2 d5 e1B c5 f2 Kg2 e4 d6 e3 c6 e2 d7 Bc3 Bf4 e1B Qb3 Ne7 g8Q Bfg7 Bg3 Kg4 Qc2 f5 Nh3 f4 Qgh7 Bce5 Nc3 Bb7 Rd1 Nc8 Qc1 Qe7 d8R Nd7 Rd2 Nc5 R8d4 Nb3 Nd5 Na1 Bd3 f1N Kg1 Ne3 Bf5+ Kf3 Nf2 Ng2 Bd7 Re8 Re2 Ba5 Rb2 Nd6 c8R Bd8 Rb8 Nc8 c7 Bc6 Rb7 Rb8 Nc3 Be4 Re2 Bg6 Red2 Rh8 Ra7 Rb6 Nd5 Re6 Nd3 Kg4 Nf2+ Kg5 Rb7 f3 Bf4+ Kf5 Ne4 Kg4 Ng3 Nd6 c8R f2+ Kf1 Kh3 Rc6 Kg4 Rg1 Nc8 Nh1 Bd6 Rbc7 Bde5 Ke2 f1B+ Kf2 Be2 Rf1 Bf3 Kg1 Bh5 Qhc2 Be8 Qc5 Bg6 Qa7 Bef6 Be8 Re3 Rd7 Be5 Rdc7 Qf8 Rf7 Qe7 Bd7+
1B1nNb2/3KB2p/r2R3B/3B1R1P/1b2Qq1N/1Bnppq1b/r3P1Q1/1r1k2r1 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 Kc5 Ke4 c4 d5 f4 g5 h4 a5 b4 g3 h5 d3 f5 d2 f6 Ke3 b6 g2 b5 g4 b7 a4 b6 a3 f7 d4 Qa4 a2 Na3 d3 Nf3 g1R Nb5 e5+ Nd6 g3 Bg2 e4 Nh4 Ne7 Ne8 Nbc6 b8Q Re1 b7 Bh3 Rf1 Qc7 Rf5 Ra6 Qa8 Qf4 b8B Nd8 Kb5 Qf3 c5 Nd5 c6 Rg8 Rb1 a1R c7 Ra2 c8B Rd1 Bh1 g2 Be6 g1B Qc6 Bb4 f8B Rf1 Ba3 d1Q Bh6+ Qf4 Rc1 Kd2 Rc3 Bf8 Be7 Bc5 Rc4 e3 Rd4 Rgg1 Qb7 Nb4 Rd6 Nd5 Qe4 Bb4 Qg2 Qc2 Qc6 Qb3 Qc4 Rb1 Qce4 Kd1 Bg8 Be1+ Kc5 Nc3 Bc4 Nb5 Kd5 Qf3 Kc5 Bb4+ Kd5 Nc3+ Ke5 Nc6+ Ke6 Qa4 Kd7 Nd8+ Qc6 Ra3 Qf2 Qe4 Bb5 Qa5 Bc4 Qad5 Bf3 Ra2 Qg2 Qdd4 Qd5 Qde5 Qe6 Qg4 Bfd5 Qef4 Qee4 Qgf3 Bb3+
bQb1nK1B/1r1pR1N1/r4kpB/b6p/3P2nP/RqqNb1BB/6B1/3Q2r1 b - - 0 1 illegal: No proof kernel
2n2B2/pN1B3b/4Q2p/kB4pn/bRr4r/1B2b1RN/2n1n1PP/1K1BQq1q b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 e5 fxe5 b5 Bh6 bxa4 Bg5 Qb6 Bc1 Qd8 Kd2 g5 e4 d5 b4 Kd7 c4 Kc7 Kc2 Kb6 e6 f5 e5 a3 b5 f4 c5+ Ka5 b6 f3 c6 a2 b7 f2 c7 Nc6 b8Q Nf6 e7 Nh5 e8B Ne7 Bfb5 f1Q Nd2 Bf5+ Ne4 Nc8 e6 Bc5 e7 d3+ Kb2 d4 Nd6 d2 Qe1 d3 Bf7 Bf2 e8B Be3 Bed7 Qe7 Rb1 a1N Bb3 Nc2 Nh3 Qe4 Ka2 Qb4 Rb2 d1N Kb1 d2 Qb7 Rb8 Qc6 h6 Qe4 Bh7 Qe6 Rf8 Rg1 Rf4 Ra2+ Qa4 Ra3 Rh4 Bb2 Rb6 Bg7 Rc6 Bf8 Rcc4 Rh1 Nb6 c8B Nc3+ Kb2 Ne2 Kb1 Rhd4 Bb7 Nc8 Bf3 Rh4 Rg1 Qf2 Rf1 Qg1 Bg4 Qh1 Rf3 Qf1 Rg3 Qh1 Ra2 Qa3 Rb2 Qa4 Qg1 d1B Qe1+ Qb4 B3a4 Qd2 Rb4 Qd3 Bb3 Qf5 Bf3 Qf7 Bg4 Qff1 Kb2 Nc3 B3a4 Na1 Be2 Bdc2 Bd1 Ne2 Ka2 Bb3+ Kb2 Nc2 Kb1 Rc5 Bc4 Rc7 Bab5 Ba4 Bb3 Rcc4 Nb7#
K3Rb2/3p2qR/RQ1kn1R1/1B2b2b/rpR5/NP3n2/1p1PQ2B/b1r1nNn1 b - - 0 1 illegal: No proof kernel
1BqRrBQ1/1Q1p2NK/pn2bk2/r1Br3b/P3pbBr/N4B2/1b1P1n1R/8 b - - 0 1 legal: proof: e4 f5 g4 fxe4 b4 c5 bxc5 h5 Qe2 hxg4 Qf3 Rh7 Qd1 Rh8 Ke2 Kf7 Ke3 b5 Kf4 e5+ Kf5 g5 c4 b4 h4 g3 f4 g4 h5 b3 c6 b2 c5 g2 c7 e3 c6 g3 h6 e2 h7 e1R Qg4 Bh6 Ne2 g1R Bh3 g2 Na3 Na6 Ng3 Nc5 Rh2 Ba6 c8B Ne4 c7 b1B Nh5 Ngf6 Ng7 Be2 Bb7 Nd5 c8Q Nb6 Qf3 Qc7 Bg4 Nf2+ Be4 Ke7 Qg8 Qc8 Kg6 a6 f5 Bf4 Bb7 Bbd3 Rb1 Bc4 Bb2 Rgf1 Bd4 g1B Rb4 Ra1 f6+ Kd6 f7 Ke7 Qh1 Be6 Bbf3 Rfc1 Rb1 Rc5 Qg2 Rd5 f8B+ Kd8 Bdc5 e4 Qf1 Bd1 Qb5 Be2 Qc6 Bd1 Qb7 Be2 Rh4 Bgh2 Rf1 Be5 Rg1 Bhf4 Rh2 Bb2 Nc4 Rf1 a4 Rc1 Na3 Bd1 Bcd6 Rcc5 Bb8 Ra5 Qf7 Rg8 h8B Be2 Bc5 Re8 Qg8 Bd1 Kh7 Be2 Bd4 Ke7 Bc5+ Kf6 Rc1 Nh3 Bh5 Bc4 Bd1 Kg5 Be3 Be5 Bd6 Bf1 Qf8 Qc6 Nf5 Bc3 Bg7 Ba1 Kh8 Re7 Qg8 Rae8 Bb8 Bb2 Rc3 Bb5 Bf8+ Kf6 Rc1 Nf2 Rc5 Qd6 Rc8 Be2 Bc5 Qc7 Rd8 Bf3 Be2 Qc8 Bd1 Rg7 Be2 Rg6 Ng7 Rg4 Kh7 Rh4 Bd1 Bfg4 Bf3 Bh6 Bg6 Bh5 Bf5 Bf4 B5g4
1qQ5/rNr1p1q1/N1N1kn1R/3N2p1/Bp2P1P1/1bNK1p1q/1R5r/bnB1Q3 b - - 0 1 illegal: No proof kernel
1k1Bbr2/Q1pR1R2/6NR/2p1n1p1/p3nQq1/br2N1b1/P1P3BR/q4nKR b - - 0 1 illegal: No proof kernel
3bbb2/rp4B1/2r2R2/n1pNp1QR/K2n1p2/1N2BPq1/1PB1b1Bk/2Q2B1b b - - 0 1 illegal: No proof kernel
n1K2nr1/rN4Qb/4Bn2/n1BpBp2/2BNqPp1/3BbkPr/p5RR/3Q4 b - - 0 1 illegal: No proof kernel
2k1rB2/Rpp2r2/2rBQ3/BQ4p1/Nb2r1Pq/p2n1N1n/Pn4b1/1KRB2B1 b - - 0 1 illegal: No proof kernel
3rR2B/1p4r1/N1q1n1Qp/1N1nnb1P/2Q5/pBp2nN1/1qPb1KNk/N2R4 b - - 0 1 illegal: No proof kernel
K2QrNn1/1R2Bpn1/1p1R1Pp1/1QpB4/bN2RrR1/kn5p/1R4Pn/2q1b3 b - - 0 1 illegal: No proof kernel
2K5/2prrNqN/QpB1b1pB/2k3R1/1ppn4/1PN4p/1b1N3P/nRr2N1Q b - - 0 1 illegal: No proof kernel
6B1/b2KRBQ1/2n2q1k/4PQR1/3n1b2/1NRB1P1r/2r2N2/1qBq1b2 b - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 g5 c4 a5 h4 d5 cxd5 gxh4 a4 axb4 axb5 f5 Ra3 f4 Rf3 Ra3 Rxf4 Ra2 Rf7 Ra8 Kd2 h5 Kd3 c5 Ke4 c4 g4 c3 d6 c2 Kd5 h3 e4 b3 g5 h2 b6 h4 e6 h3 g6 b2 e7 Ra2 b7 Qd7 e5 Qc7 g7 Nh6 g8B Nc6 b8R Nf5 f3 Nfd4 Rb3 Ba6 Nd2 b1Q Rc3 Bh6 Nb3 Bf4 Bd3 Qa7 Bf5 Bf1 Qd3 Qd7 Rh7 Qe6+ Kc5 Qf6 Rh5 Rb2 Rg5 Be3 Kb6 Qg7 Kc7 Rh5 Bgh7 Kf7 d7 Qf6 Bfg6+ Kg7 e8B Kh6 d8Q Bf2 Bg8 Rh4 Bd2 c1B Qf5 Rc2 Bef7 Rh5 Qf8+ Qg7 Be1 Bf4 Kd7 Rh4 Bd2 Qd1 Ne2 B2e3 Rhg1 h1Q Bc1 h2 Ng3 Rh3 Ne4 Qg2 Nf2 h1Q Qg4 Qgh2 Bd3 Qg3 Qf5 Qh4 R5g2 Qf6 Rg5 Ne6 R1g2 Ba7 R2g4 Bd2 Rd4 Bf4 Rd6 Ned4 Re6 Bg2 Re8 Qhe1 Re7 Bf1 Ba3 Qb1 Bc1 Qd1 Qxg7+
3NnK2/QP3br1/B6N/B2q4/npQ1qnR1/p3RpP1/8/2NN1Qk1 b - - 0 1 legal: proof: f4 c5 h4 g5 c4 gxh4 b4 e5 bxc5 d5 cxd5 exf4 a4 b5 Ra2 b4 Ra3 Qd7 Ra1 Qb5 axb5 Bb7 Ra2 Ba6 Ra1 Bc8 Nc3 a5 Nb1 Ra6 bxa6 Bd6 Nf3 Bc7 Ng1 Bb6 cxb6 Be6 Nc3 Bd7 Nb1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 a7 f3 a8Q a4 d6 a3 d7 f2 Ke6 Kd4 Kf7 f4 d8N f3 e5 h3 b7 h4 e6 h2 e7 h3 e8Q Rh7+ Kf8 Nf6 g3 Bd7 Qee2 Na6 Nc3 Bc8 Qa7+ Nc5 Nf7 Ne8 Nh6 Rg7 d3 Be6 Bf4 Ba2 Bc7 Bf7 Qa2 Ke3 d4 Na4 Ba6 f1Q Qc4 Kf2 d5+ Kg2 d6 Qe1 d7 Qe4 Nge2 Qd5 Re1 h1Q d8N h2 Nc1 Qg1 Ba5 h1N Qdd3 Qgd4 Re4 Kg1 Nd1 Nf2 Rg4 Nh3 Ra2 Nf4 Re2 Qe4 Re3 Qdd5 Qf1+
nRQNr1qk/7B/2bK4/3n3N/1BPn1PN1/R2Q2Nn/2q2B2/4n1qq b - - 0 1 legal: proof: b4 a5 h4 b5 e4 c5 a4 f5 axb5 g5 exf5 gxh4 d4 cxd4 b6 Ra7 b5 Rc7 b7 Bh6 Bxh6 Rc4 b6 Rc3 Bc1 Rf3 Nxf3 Na6 Ng1 Nb8 Kd2 Kf7 Kd3 Kg7 Kc4 d5+ Kc5 h5 g4 e5 c4 a4 f4 d3 g5 a3 g6 d4 Qb3 a2 Ba3 e4 Qa4 d2 Bd3 d1Q Qc6 h3 Qc7+ Nd7+ Kd6 e3 b8B h4 b7 h2 Nh3 e2 Bb4 e1N Nd2 Qc2 Nf1 Ne7 Ba7 Nb6+ Qd7 Na8 b8Q Qg8 Nf2 h3 Ng3 Bb7 Ng4 Bc6 Rf1 h1N Qbc8 h2 Rb1 a1Q Rf3 Nf2 Qdd8 Rh4 f6+ Kh8 f7 h1Q f8N Nd5 Ne6 Nh3 Qdd7 Rh7 Nd8 Re7 Be4 d3 Bf2 d2 Ra3 d1N Bd3 Re4 g7+ Kh7 Rbb3 N1c3 Rb2 Ne2 Rb1 Qf7 g8N Nd4 N8f6+ Kh8 Nfh5 Re8 Bh7 Qg8 Qf5 Qg1 Qd3 Qh1 Bc5 Qg1 Rb8 Qad1 Bb4 Qf3 Bd2 Qfh1 Bb4
k2BK1BQ/2bR1NB1/PrB1b1pN/3rr3/6n1/n2q2N1/Pr1Q2r1/6R1 b - - 0 1 legal: proof: c4 c5 g4 a5 b4 e5 bxa5 d5 e4 f5 exf5 h5 d4 hxg4 dxe5 d4 e6 Qd5 Qb3 Qxc4 Qf3 Qd5 Qd1 c4 Bxc4 Qd7 Bf1 Qd8 Ke2 b5 Kd3 g6 Ke4 d3 Ke5 d2 h4 g3 f4 g2 e7 Kd7 e8B+ Kc7 h5 Kb7 h6 b4 h7 b3 a6+ Ka7 f6 b2 f5 Bc5 f7 Bf2 f8B Bd7 Kd6 Bh4 f6 Ne7 f7 Rg8 h8N Nbc6 Na3 b1R Nc2 Ne5 Ne3 Nd5 Nf5 Nf6 Bg7 Bg3 f8Q Rab8 Nh6 R8b2 N8f7 Ka8 Ne2 Nfg4 Rg1 Be6+ Bd7 Bf4 Ng3 Nc4+ Kc6 Na3 Bc4 Rh8 Be8 Rh7 Qh8 Bc7 Qe2 d1R Bg5 Rd4 Qd2 Rd5 Bd7 Re1 Rd1 Ree5 B5f6 Ra5 Be8 Qd3 Bd8 Rad5 Nd6 Bf7 Kd7 Be6+ Ke7 Rb6 Ndf7 Rb2 Bd7 Rb6 Ke8 Rb2 Rge1 g1R Bb3 Rg2 Rg1 Rb5 Bc6+ Rb7 Nhf5 Rh5 N5h6 Rhf5 Rc1 Rd5 Rc4 Rfe5 Rd4 Ra5 Rd7 Rad5 Bc4 Ra5 Be7 Bf5 Nd8 Rac5 Bg8 Rcd5 Ndf7 Be6 Bb5 Rb8+ Bd8 Rb6 Bc6+
5b2/4B1rQ/K2B1RNn/P7/1N2kN2/PQn2Q1p/qq1b1q2/q1NR1n2 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 e3 exf4 a3 b4 Bc4 a6 Ba2 a5 b3 a4 bxa4 b3 a5 bxa2 g4 g5 h3 f5 Qb3 f3 Qd1 f4 Bb2 Bf5 gxf5 g4 Bc1 g3 Qb3 Ra6 Qc2 Rg6 Qd1 Rg4 hxg4 Bb4 Rh4 Be7 Rh1 Bf8 d4 Ke7 Kd2 Kd6 Kd3 c5 Kc4 h5 Kb5 g2 e4 f2 e5+ Kc7 g5 f1N f6 c4 e6 Kd6 f7 h4 e7 f3 e8Q f2 g6 h3 g7 c3 Qb3 c2 Qe4 Ne3 Nd2 f1Q+ Ne2 g1B Qf3 Qf2 Nf4 Nd7 Ka6 Bh2 Rf1 Nh6 g8Q Qg3 Qh7 Bg7 f8N Rg8 N8g6 Bf8 Bb2 Qf6 Rad1 c1Q Bc3 Nb6 Bb4+ Qc5 Rf2 Rg7 Rff1 Kd7 d6 a1Q d5 Qfb2 Rf2 Qg2 Rff1 Kd8 d7 Kc7 d8N Kd6 Nc6 Na4 Rf2 Nc3 Rff1 Kd7 d6 Qd5 Bc5 Qf2 Nb4 Bg1 Nh5 Ke6 d7 Bh2 d8B Bf4 Bd6 Kf5 B8e7 Qg8 Rfe1 Nf1 Re6 Qf7 Rf6+ Kg5 Qa4 Qfa2 Nb3 Be3 Nc1 Bd2 Qh1 Kg4 Nhf4 Kg3 Qd5 Kg4 Qf7 Kf3 Qab3 Ke4 Qfd5+ Ke3 Qh5 Ke4 Qf3+
q3b1Qb/4Nn2/P4n2/3N2rQ/Bp5n/QR1R2P1/1R1b2B1/n1k2KRb b - - 0 1 legal: proof: e4 g5 h4 c5 hxg5 f5 exf5 d5 b4 a5 a4 b5 d4 Ra6 Ba3 axb4 c4 bxa3 cxd5 c4 Qd2 Rc6 Qd1 Rc5 dxc5 Qd6 Nh3 Qc7 Ng1 Qd8 f4 Kd7 c6+ Kd6 c7 Kc5 a5 Kb4 f6 h5 g6 e5 g3 h4 g7 a2 f5 e4 f7 c3 f6 h3 a6 e3 d6 h2 d7 c2 Qh5 Kb3 Ne2 Kb2 Nf4 c1B Nc3 e2 Bg2 Nc6 Nfd5 Ne5 Rg1 h1B Ne7 Bd2+ Kf2 e1N Ncd5 N1f3 Kf1 Kc2 Rb1 a1N Rb2+ Kc1 Rb3 Bb7 c8B Nh4 Rb2 Qe8 d8R Bc6 Bd7 Rh6 Rb8 Rg6 Rb7 Qa8 Rb6 Nh6 g8Q Bg7 f8Q Bh8 f7 Nhg4 Qfg7 Nhf3 f8R Nh4 Rf3 Nf7 Rd3 Rg5 Qe5 Nf6 Qd6 Nh6 Qa3 Nf7 Bg4 Be8 Bd1 Ng4 Ba4 b4 Rc6+ Nc2 Rcc3 Nf6 Rcb3 Na1 Qh6 Nd7 Qhh7 Nf6 Qh5
q1Q2K2/Rr1Q1pQr/3Q1B2/5R2/nPn3qN/3rPq2/k1NR3n/n3B3 b - - 0 1 legal: proof: b4 b5 c4 a5 a4 e5 axb5 d5 cxd5 a4 f4 exf4 g3 Qe7 Bg2 Qf6 Be4 Qd8 g4 h5 g5 g6 Bc2 Qf6 Bb3 axb3 Ba3 Qd6 Bc1 Qd8 h3 Bh6 gxh6 g5 Ra2 g4 Ra6 g3 Ra1 Bg4 hxg4 Qg5 Kf1 Qf6 Ke1 Qd8 d4 Kd7 Kd2 Kd6 Kc3 c5 Kc4 f3 e3 f2 g5 f1N g6 h4 b6 h3 h7 b2 b7 h2 g7 g2 Bd2 Nf6 g8R Ng4 Ra7 Nd7 Nf3 g1Q Nh4 Rb8 Na3 b1R Be1 Rb3 Nc2 Rd3 Rg5 Nge5+ Kb5 c4 Rf5 c3 Qc1 Rc8 b8Q+ Rc7 Qd1 Qg4 Qc8 Nb6 Rg1 h1Q Rg2 Ned7 Rd2 Qhf3 Qa1 Na4 Qd1 Rf8 h8Q Nh2 Qg7 Rb7+ Kc4 Ndb6+ Kb5 Ke7 Kc6 Re8 Rf2 Rh8 Rd2 Nb2 Kc5 N2c4 Kc6 Rh5 Kc5 Rh7 d6+ Ke8 d7+ Ke7 d5 Na4+ Kc6 Qa5 Na1 c2 d8B+ Ke8 Bf6+ Qd8 Bb2 c1N Nc2 Nb3 Bd4 Na1 Bf6 Qff4 d6 Qf1 Be5 Qff4 d7+ Ke7 Bf6+ Ke6 Qc7 Qa8 d8Q Rb5+ Qb7 Qff3+ Kc7 Rb6 Qbb8 Rb5 Qd4 Rb6 Kd8 Rb7 Ke8 Rb6 Be5 Rb7 Qf4 Kd5 Kf8 Na3 Bd4+ Kc4 Qc8+ Kb3 Qd6 Nc4 Bf6 Ka2 Qe2 Ra3 Qed3 Rc3 Qd7 Rb3 Q3d5 Rd3 Q5d6
KBbkbq1B/N3R3/1N2P1P1/2Q5/3q1B1b/1q2R2p/3b1QBn/qn1R4 b - - 0 1 legal: proof: b4 b5 f4 e5 c4 exf4 a4 a5 axb5 h5 b6 d5 cxd5 g6 b7 Ra6 b5 Rc6 b6 Rc2 Qxc2 g5 h4 Rh6 Qd1 Rc6 Ba3 Rc1 Bxc1 gxh4 Kf2 f5 Kf3 c5 d4 c4 g4 a4 e4 h3 d6 h2 d7+ Ke7 e5 h4 d5 a3 g5 h3 e6 c3 g6 a2 d6+ Kf6 Qe2 c2 Na3 Nh6 Nb5 Na6 b8R Be7 b7 Ng4 Qf2 Nc7 Na7 Nb5 Bg2 Nc3 Ne2 Nb1 Re1 h1Q Nc3 Qh2 Bd2 c1B Re3 Qg1 Ra8 Qb6 b8B Qb3 Na4 Bd8 Nb6 Be7 Bb4 Bd2 Ba3 Bd8 Bc1 Be7 d8Q Nh2+ Ke2 Bd7 Qe8 Bc8 d7 Bd8 Qh8+ Ke7 Qc3 f3+ Kd3 f4 Kd4 Qgd1 Kc5 Qg1 Qe1 f2 Kc6 f1B Qf2 f3 Bb2 Bd3 Qc4 Qgd1 Bh8 Qg1 Bf4 Be2 Rb8 Bd1 Rb7 Bc2 Qg3 f2 Qb5 f1Q Qf2 Qfd3 Qf5 Qgf1 Bb8 Qd4 Qa5 Na3 Rd1 a1Q Bf4 Nb1 Qf5 Bc7 d8B+ Ke8 Bdg5 Bd8 Bb8 Bd3 Bh6 Bh4 Bhf4 Kd8 Qc5 Ba6 Re7 Be2 Nd5 Bb5+ Kb6 Bcd7 Kb7 Bc8+ Ka8 Be8 Qg3 Qf2 Nb6 Qf1 Bh6 Qff4 Qf2 Qf8 Bhf4
5b2/3Q1R2/n1nr3P/Nq5p/P2NBb2/Q3pBnK/1k2r2B/3qQB1R b - - 0 1 legal: proof: e4 a5 b4 axb4 d3 f5 exf5 c5 c4 d5 cxd5 c4 Qf3 c3 Qg4 Ra5 Qd1 Ra8 h4 h5 Nf3 g6 Ng5 Nh6 Nh7 Bd7 Qg4 Bb5 Qxh5 Bc4 dxc4 Ng8 Qf3 Ra6 h5 Ra7 h6 Ra8 Qh5 gxh5 f4 Kf7 Kf2 b5 Kg3 e5 a4 c2 f6 b3 d6 Ke6 f7 b4 f5+ Kd7 c5 Kc6 d7 Kd5 c6 Kd4 c7 e4 c8B b2 f6 b3 Bf4 c1B Kh3 e3 g4 Bb4 f8Q Ba5 f7 Ra6 g5 Rg6 Bb7 Rd6 g6 Ne7 g7 Na6 g8B Bc7 Na3 Kc3 Bh2 b1N Ng5 b2 Bf3 Nc6 Bh7 Nd2 Ne6 b1Q Nd4 Rg8 Nc4 Rg2 Na5 Kb2 Bhe4 Re2 Qg8 Qd3 f8Q Qb5 Qg3 Bb8 Qe1 Bc7 Bd3 Ne4 Qe7 Ng3 Bde4 Bd2 Rc1 Bb4 Qf8 Qdg5 d8Q Qgd5 Qd7 Qb3 Rc5 Qd1 Rf5 Rf6 Qd5 Bf4 Qd7 Rg6 Rf7 Ba3 Qfd8 Bf8 Q8e7 Rf6 Qc5 Rd6 Qa3+
5QNR/5RNb/q1n3n1/4k1PK/P1r1RpB1/N7/N1p1B1nn/r1n4Q b - - 0 1 legal: proof: f4 a5 b4 c5 a4 d5 h4 e5 fxe5 g5 hxg5 c4 d4 Bd6 Ba3 Bc5 dxc5 axb4 c3 d4 cxd4 bxa3 d5 Bg4 Nh3 Bd7 Ng1 Bc8 Kf2 Ke7 Kf3 f5 e4 b5 g4 h5 e6 f4 g6 Kf6 g7 a2 d6 b4 d7 b3 e7 c3 e8B h4 c6 b2 g5+ Ke5 Kg4 h3 c7 c2 Qe1 h2 Be2 Qf6 Bh5 Ne7 g8N Ng6 Na3 Nc6 Rd1 a1N Rd4 b1N Qc1 Bb7 c8Q Nb3 d8R N1d2 Rf8 Nf3 Rf7 Nfh4 Qf8 Rc8 Qf1 Nc1 Qh3 Ke6 e5 Ng2 Nb1 Na7 Qg3 Be4 Na3 Nd3 Qh3 N6h4 Nf3 Rc4 Nd2 Bg6 Nb3 Rh6 Rd1 h1N Nc1 Ng3 Rh1 Nf1 Na2 Rh7 Re4 Kd5 e6 Rh8 e7 Qa6 e8N Nc6 Rd4+ Ke5 Qh2 Rh7 Ra7 Rb7 Ng7 Rb1 Rf7 Ra1 Qg1 Nc1 Rh2 Nf5 Qh1 Nfe7 Rh3 Nge3+ Kh4 Nh2 Bhg4 Be4 Kh5 Ng2 Kh6 Nf5+ Kg6 Bd3 Rh7 Nfe7+ Kh5 Be4 Rh8 Bh7 Qd8 Ng6 Qa8 Qa7 Qf8 Qa6 Re4+
3r1N2/2KP4/b2p1N1k/5PbR/nb3R2/1N1Q1nBp/4B3/rn1bQ1RN b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 c4 d5 cxd5 Qd7 d6 Qd8 d4 Bh6 d7+ Kf7 d5 Bf8 d6 cxd6 Ke2 Kg7 Kd3 h5 Ke4 e5 Kd5 a5 f4 e4 b4 h3 g4 h2 b6 h4 b7 a4 g5 e3 b5 e2 g6 e1B f6+ Kh6 f7 a3 f5+ Kg7 b6 a2 Qd3 Qg5 Nh3 Qh5 Be2 Be7 f8N Na6 Kc6 Bb4 b8R Bg5 b7 Kh6 g7 Nf6 Bf4 Nh7 Nf2 Nc5 Nd2 Na4 Rag1 a1N Kc7 Nc2 Nb3 Na3 Bg3 Ra6 Ra8 Nb1 b8Q Bb7 Qe8 h3 Rf1 Ra7 Rhg1 h1B Qee3 Bhf3 Nh1 Bg4 Rf4 Ra5 Re8 Ba6 Ree4 Bf3 Rh4 Rg8 Ref4 Bg4 Bf1 Bd1 Qe1 Rh8 Be2 Rg8 Ne6 Rd8 Nf8 Bf6 Rff1 Ng5 Rff4 Nf3 g8N+ Kg5 Ne7 Kh6 Nd5 Bg5 Nf6 Nc5 Qe3 Ra1 Qd3 Na4 Rxh5+
r5Q1/1kNpr3/7R/B1nrq3/Qp1bpP1R/6BR/N4Pbb/3RK1B1 b - - 0 1 legal: proof: d4 c5 c3 e5 Be3 a6 Qb3 e4 Bg5 Nc6 Bf4 Ne5 dxe5 b6 Qd1 c4 Be3 Bb4 Bc5 bxc5 cxb4 Qg5 Qd2 Qf6 Qd1 Qd8 g4 h5 gxh5 f5 b5 Rh6 b4 Qc7 e3 Rb6 Bg2 Rh6 b6 Kf8 b7 Qd8 b5 Ke8 b6 Ra7 Bf3 f4 exf4 Ra8 Bg4 Rh8 Be6 Qc7 Bd5 Qd8 Bc6 Kf8 Ba4 Ke8 Bb5 axb5 b8Q g5 a4 b4 h4 g4 h6 g3 h5 g2 h7 c3 h6 c2 a5 c1B e6 c4 a6 c3 b7 c2 e7 Ra7 Nc3 Bb2 Rh4 c1B Na2 Bg7 Ne2 Qc7 Qa4 Be3 Nd4 Be5 Ne6 Bg7 Rd1 Ra8 a7 Bed4 Rh3 Qe5 Nc7+ Kf7 e8R Nf6 Rd8 Re8 h8B Ke7 h7 Ng4 Rh6 Bf8 Bf6+ Kd6 h8B Be7 Bh4+ Bf6 Bg7 Re7 Rdh8 Kc5 Bg3 Kb6 Rh3 Bh4 Bh2 Bg3 Bg1 Bh2 R3h4 Qe6 R8h7 Ne5 Bf6 Qd6 R7h6 Nd3+ Kd2 Nc5 Ke1 Re5 Rh3 Rd5 Bh4 Qf6 Ne6 Qh8 Bg3 Qe8 Qe5 Qh5 b8B Ba6 Qg7 Bf1 Bc7+ Kb7 Ba5 Qe5 Qg8 Re8 a8R Re7 Bh4 Bg3 Bh2 g1R Nc7 Rg2 Bg1 Bh2 Raa6 Rg3 Rag6 Bg2 Rg4 Rd3 Bg3 Ra3 Qc2 Ra4 Rgh4 Ra3 Bb6 Ra7 Ba5 Ra8 Qa4
K2B1B1r/R1b2k1p/1b4N1/R1q5/2N1NN2/pqb2P1Q/PQ2np1n/3Q4 b - - 0 1 legal: proof: h4 b5 c4 g5 b4 gxh4 g3 c5 bxc5 d5 Bg2 Bg4 cxd5 Nd7 Be4 Bf5 Bd3 Nb8 Bc4 Bc8 f4 bxc4 Qb3 a5 Qd3 e5 Qc2 e4 Qb3 Ra6 Qc2 Re6 Qd1 Re5 fxe5 f5 Qc2 f4 Kf2 f3 Qd1 Bg4 Ke1 f2+ Kf1 Bf3 exf3 Bh6 Ke2 Bf8 Ke3 h3 Kd4 a4 g4 a3 g5 c3 d6 e3 Kd5 c2 d4 e2 d7+ Ke7 c6 e1B c7 h2 c8Q Qc7 d8B+ Kf7 g6+ Ke8 g7 Bc3 e6 Qg3 e7 Qg2 Ne2 Qf1 Qh3 Bb4 Nf4 Nh6 g8N Nf7 Nc3 Qg2 Rb1 Qf1 Ne4 Bd6 Rb7 Be5 Ra7 Nh6 Kc5 Qg1 Kb6 Ng4 Kb7 Nc6 d5 Bc7 d6 Nd4 d7+ Kf7 e8N Ne2 Ka8 Bg7 Ne7 Bc3 Neg6 Qf1 Be3 c1B Bc5 Be3 Bf8 Beb6 Rg1 h1Q N8d6+ Kg8 Ra5 Nh2 Nc4 Kf7 Qb3 Qhg2 Qb2 Qb1 Ra7 Qgf1 Rg5 Qfc1 Rga5 Qd3 Bf6 Qce3 d8Q Qc5 Bg5 Qc2 Qd1 Qb3 Bd8
2nN2b1/3PNP2/3BbpB1/kbq1R3/2NqR3/1pQ1N3/1npB3r/2Q3K1 b - - 0 1 illegal: No possible last move
3Q1N2/3PQ3/1P1r1rpN/4Bq2/r3B2q/pQ2Npk1/6bq/KRQ2b1R b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Nc3 exf4 Nb1 a5 b3 a4 b4 Bc5 Qb3 Bb6 Qd1 Ba5 bxa5 Qf6 Qb3 Qg5 Qd1 Qd8 g3 f5 g4 f3 h3 f4 h4 Nc6 h5 Nce7 h6 g6 Bh3 Nf5 gxf5 Nf6 Bg2 Nh5 Bf1 Ng7 hxg7 Kd7 Ra3 Ke7 Ra1 Ke8 g8Q+ Ke7 d4 Kd6 Kd2 c5 Kc2 h5 Kb2 h4 e4 f2 f6 f3 d5 Ke5 b6 h3 d6 h2 f7 Qe8 f8N Ra7 a6 Qd8 Nh3 Qh4 Bd3 f1B Ng5 Bch3 d7 Bhg2 Nd2 Kf4 e5 Kg3 Rb1 c3+ Ka1 c2 e6 a3 e7 c4 e8Q c3 Bb2 c1Q Be4 c2 Nc4 Qcf4 Qe7 c1R Ne3 Rc6 Nf7 Rd6 Qc1 Qf5 Nh6 Rh7 Qgc4 Rf7 Qb3 Ra8 a7 Rff6 Rg1 h1Q Bd4 Q1h2 Rh1 Rc8 a8Q Rc4 Qad8 Ra4 Be5+
5n1K/Q1R1R3/pk2Pn2/pp5Q/3q1b1B/3BPNr1/1n1pB3/1Qb2B1N b - - 0 1 legal: proof: f4 e5 fxe5 h5 b4 b6 g4 Bc5 d4 Be7 gxh5 Bf8 a4 c6 a5 bxa5 b5 cxb5 c3 Nc6 c4 Nb8 c5 g5 h3 g4 d5 g3 Qd3 Bb7 Qd1 Bc6 dxc6 Na6 c7 Rb8 Be3 Rb6 Bf4 Rg6 Bc1 Rg4 hxg4 Qc8 Bb2 Qb8 Bc1 Qd8 Kd2 d5 Ke3 Kd7 Kf4 Kc6 Kf5 f6 Kg6 g2 c8Q+ Nc7 g5 a6 h6 d4 h7 d3 Nc3 f5 Qa8+ Kd7 c6+ Ke8 Nf3 g1B Ne4 f4 Ng3 Bfc5 Kg7 Bh2 g6 Nd5 c7 Kd7 c8B+ Kc7 Bg4 Be3 e6 Bd2 e3 Qd6 Ba3 Nge7 Rc1+ Kb6 Rc7 Nf6 Qb1 Qd4 Bb4 Rc8 h8Q Bc1 Be1 Rb8 Qh5 Rg8+ Kh6 Rg7 Rg1 Rg8 g7 Ng6 Nh1 Nf8 Bh4 Bg3 Re7 Bh2 Rg2 Bg3 Rc2 Bh2 Ng5 f3 Rcc7 f2 Bge2 Bg3 Nf3 Be5 Bh3 f1N Bg2 Nd2 Bgf1 N8d7 Kg6 Nc4 Kf7 d2 Kg6 Rf8 g8B Bf4 Kg7 Nb2 Bh7 Rh8 Bhd3 Nf8 Rc5 Rh6 Rcc7 Rg6+ Kh8 Rg3 Qa7#
R3Q1n1/k4rPN/b3QqBR/4p1pp/4r1Qb/K4pN1/1P4B1/4rNN1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 Qd7 a4 Qd6 axb5 Qd8 e4 Qd7 e5 Qh3 d3 Na6 e6 Nb8 f5 Qh6 f6 exf6 Qe2 Qf4 Qd1 Qd6 Bf4 Qd8 g4 g5 Be5 Nc6 h3 Nce7 h4 Nf5 h5 fxe5 Ra6 Qf6 Ra1 Qg6 hxg6 Nd4 Rh3 f5 Rh4 f4 Rh1 Nf5 gxf5 Bg7 Qc2 Bh6 Qd1 Bf8 Kd2 Kd8 Kc2 a5 Kb3 c5 g7 Kc7 d6+ Kb8 b6 c4+ Ka3 a4 e7 c3 e8B c2 d4 c1R b7 h6 f6 Rh7 f7 Bh3 d5 Ka7 b8N Rc6 Nd7 Nf6 Nc5 Ng8 d7 Rf6 d8Q Bc8 d6 Ba6 Qg4 f3 d7 Rf4 Rh5 Re4 Qc8 Rb8 d8Q Rb7 Rh2 Bd6 f8N Rf7 Bg2 Re1 Kb4 a3 Nd2 a2 Nf1 Bc7 Qd6 Bb6 Ne4 Bf2 Qde6 Bh4 Ka3 Rh8 Neg3 h5 Nh7 Rf4 Bg6 Rfe4 Nf8 Rh6 Qce8 Rh8 Rh1 Rh6 Rd1 Rh8 Rd6 a1Q+ Qa2 Qc1 Nh7 Qf4 Rf6 Qf5 Qae6 Qf4 Bf7 Qf5 Rh6 Qf6 Bg6 Ne7 Qa2 Rf8 Qae6 Rf7 Nh2 Ng8 Nh3 Ra1+ Kb3 Be2 Rd1 Bd3 Nhf1 Kb7 Ng1 Be2 Rd6 Ba6 Rd8 Rae1 Ka3 Ka7 Ra8+
8/1R3qrq/BpPQ1pp1/Pbn1pNr1/5QR1/RB6/bB4R1/K1N2k2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 gxh5 a5 e3 axb4 Bg2 d5 Bh3 d3 Bf1 d4 exd4 e5 c4 Qe7 f4 Kd8 f5 Ke8 c5 Qd8 c6 Bc5 dxc5 Na6 Qa4 Nc7 Qd1 Ne6 fxe6 Qg5 Nd2 Qf6 Nb1 Qd8 Kd2 Ke7 a4 Kf6 h4 Kf5 h6 Ke4 e7 b3 Kc3 b6 Kb2 g6 e8Q d2 c7 Ke3 a5 Kf2 h7 f6 h5 Ne7 h6 Ra6 Na3 Rg8 h8R Qd7 h7 Ra7 Ne2 Rg7 Rg1 Qc6 Nb5 Ba6 c8B Qd5 Nbd4 Qc4 Rg4 Bb5 Ba6 Nd5 Nf5 Raf7 Ra3 Nc3 Ka1 Ne4 Bb2 Re7 c6 Nc5 Qb8 Qf7 Qc1 d1Q Qd6 Qd3 Rg8 Qh3 h8R Qh7 Qf4+ Ke1 Bg2 Rc7 Bf3 Kf1 Rb8 Rd7 Nc1 Rd8 Qe6 Rd2 Rb7 Rg2 Qd6 Rg3 Rh4 Rg5 Rg4 Qhg8 Rh2 Qh8 Rhg2 Qh7 Bd4 b2+ Kb1 Qe8 Ka2 b1B+ Ka1 Qf7 Bb2 Ba2 Bd1+ Ke1 Qa4 Kf1 Bb3 Qd5 Qd4 Qf7 Qf4+
BrR1nrR1/4npP1/1N3P2/2k5/pp1r4/1Q1b1N1R/4pNQ1/2KB1r1N b - - 0 1 legal: proof: b4 a5 e4 d5 exd5 Qd6 b5 Qa6 bxa6 b5 a3 c6 Ra2 b4 axb4 c5 Ra1 cxb4 h4 Kd7 f4 Ke8 g4 Bb7 Bb2 Bc6 Bf6 Bb5 f5 Bd7 Be5 g5 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Bc8 c4 Kd7 d4 Kd6 Kd2 h5 f6 e5 a7 h4 c5+ Kc7 c6 Kd6 c7 h3 g7 f3 g6 f2 Qb3 h2 Be2 f1R Bd1 a4 Kc1 e4 Nh3 e3 Nc3 e2 Ne4+ Kd7 d6 Kc6 d5+ Kb5 d7 Rh4 d8Q Nd7 d6 Re1 Nhf2 Rh7 Ng3 Nb8 d7 Ne7 g8R Rh4 g7 Bb7 c8N Kc5 Nb6 Rf1 Qe8 Rf4 d8N Be4 Nc6 Bd3 Ne5 Rd4 Nf3 Na6 Qd7 Rb8 a8B Rf8 Qh3 Nc7 Qg2 Ne8 Ra3 Re1 Rg1 h1R Rf1 Rhh4 Rh1 Rh7 Rh3 Rf1 Ngh1 Rhh4 Ra1 Rd8 Ra2 Rb8 Rc2+ Kb5 Rc8 Rd4 Rd8 Kc5 Rc8+
1N5N/5bR1/p2B4/N1Bq3p/N1b2QqP/1R2b1Qp/nKpq1P2/4Rk2 b - - 0 1 legal: proof: b4 g5 h4 f5 a4 b5 axb5 g4 e4 fxe4 b6 a6 g3 Kf7 b7 Nc6 b5 Ke8 b6 Nb8 Bh3 gxh3 c4 c5 d3 Ra7 bxa7 Nc6 Bh6 Nd4 Bc1 Nb5 cxb5 c4 d4 h5 Ke2 Rh6 Kf1 Rc6 Ke1 Rc5 dxc5 Qb6 Bg5 Qc7 Bc1 Qd8 Kd2 Kf7 Kc2 Kf6 a8Q Kf5 b8B e5 b6 d5 b7 c3 c6 e3 g4+ Ke4 c7 e2 g5 e1Q g6 d4 g7 Bd6 Be3 Be6 c8N Qe2+ Qd2 Bc4 Na3 Bc5 Ra2 Nf6 g8R Nd5 Nb6 Qg4 Ne2 Kf3 Rg7 Kg2 Bd6 e4 b8N d3+ Kb1 Nb4 Na4 Bf7 Nc4 c2+ Kb2 Qg8 Ra3 Na2 Rb3 Bb6 Qc3 d2 Na5 d1B Bec5 Qd8 Qa7 e3 Qc7 Qdg5 Qf6 Qd5 Qf4 Ba7 Re1 Bb6 Nd4 Be2 Nf3 Bc4 Ne5 e2 Ng6 Ba7 Nh8 Bb6 Rd1 e1Q Rd2 Kf1 Re2 Qed2 Qg3 Be6 Qf7 Ba7 Qff4 Bf7 Ba3 Be3 Bab4 Qg6 Bbc5 Qg4 Re1+
1nr2N2/1QN4K/4qqr1/1Qb1PB2/1P1B2n1/1b1R1R2/qb1BkR2/4r1nB b - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 e5 Ra4 Ba6 Ra1 Bc8 h4 a5 f4 exf4 b3 g5 hxg5 a4 Ra2 axb3 Ra4 Qd6 Ra1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 h5 g4 f6 g6 f3 g7 f2 g5 c4 g6 b2 Na3 b1Q+ Qd3 h4 Bg2 f1Q Rh3 c3 Nf3 c2 Nb5+ Kd7 Kf5 Qe7 e4 Rh6 e5 Qa2 d6 Kc6+ d7 Kd5 Bd2 c1B Bh1 Bb2 Rc1 Ba6 d8B Bb7 Rg3 h3 Bb6 h2 Bc5 Qf2 Rf1 Ba6 Qe4+ Kc4 Qb7 Kd3 d5 Ke2 Nc7 Bc4 d6 Bb3 d7 Qe8 Bce3 Bc5 d8R Qc6 Rd3 Qe6+ Kf4 f5 Kg5 f4 Nh4 f3 Bd4 Nf6 g8Q Ng4 g7 Rf6 Qe8 Rh6 g8B Rf6 Bg2 h1R Bh7 Rg6+ Kh5 Rg1 Qeb5 Rh1 Rb1 Rf1 Bh1 Re1 Ra1 Qf1 Rd1 f2 Rgf3 Qg2 Rc1 f1N Rb1 Nfh2 Rc1 Rg7 Bf5 Qf2 Ng6 Rg8 Nf8 Rg6 Rg3 Nf3 Ra1 Ng1 Rgf3 Na6 Rd1 Rc8 Ra1 Rg7 Rd1 Nb8 Rb1 Nf6+ Kh6 Rg5 Rc1 Ng4+ Kh7 Rg6 Rcc3 Rb1 Rc1 Ra1 Rf1 Re1 Bf4 Qh4+ Bh6 Qd8 Bd2 Qdf6 R1f2+
3b2q1/4r1n1/K3n1NB/1PQ3P1/5N2/bQq1Q1k1/1rNR1Rrq/2N1qqB1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 g3 g4 Bg2 Qg5 Be4 Qd8 Bf3 gxf3 g4 Qd7 h3 Qe7 g5 Bg4 hxg4 Qd8 e4 Kd7 b4 Kd6 d4 c5 Kd2 a5 Kd3 h5 Kc4 f5 g6 f2 g7 f1R g5 f3 b6 f2 Kb5 h4 b7 c4 Qh5 c3 Rh2 c2 Qh7 f4 Ba3 c1Q Ra2 h3 Qf5 f3 Ne2 a4 Rd2 Nh6 g8N Rg1 Ne7 f1Q Rf2 h2 Ng6 Na6 b8Q+ Nc7+ Kb6 Qc3 Nc1 h1Q Bb2 Qc2 Na3 Qc3 Nc2 a3 b5 a2 Qbc8 a1B Qh3 Ra3 Kb7 Ne6 Qc5+ Kd7 e5 Qh2 d6 Rh7 d5 Rb3 Ka6 Nf5 Ba3 Rg2 Qg3 Ke8 d7+ Kf7 d6 Qe1 Bb2 Qe8 d8B Nfg7 d7 Rb4 Ba3 Rb2 Bb6 Be7 Ba7 Bd8 Qh3 Qg8 Qg3 Nf4 Bb4 Ke6 Ba3 Kf5 e6+ Qee5 e7 Nfe6 e8Q Ke4 Qee7 Kf5 Qe3 Qe4 Q7c5+ Qee5 Rfe2 f2 Bb6 f1Q Qgf3+ Qf4 Rf2 Qe1 Qfd5 Kg4 Qb3 Qfc4 Ba7 Qh2 Bb6 Qcf1 Ba7 Ba5 d8N Bb4 Nf7 Ba5 Nfh8 Bd8 Nf4 Kh4 Nhg6+ Kg4 Qee5 Kg3 Bb4 Rb1 Bb6 Bb2 Ba7 Ba3 Qce3+ Kg4 Bf8 Rb2 Q3c5 Kg3 Qed4 Nh5 Bh6 Nhg7 Qe3+ Kg4 Qed4 Ba5 Qf8 Ne8 Rfe2 Bd8 Qe4 Kg3 Bg1 Rg7 Qc5 Re7 Rf2 N8g7 Qee3+
B2q1r2/K2b1Br1/N2nRP2/2nQ3Q/q1B2r1N/kB5q/N1Pb2q1/4q2R b - - 0 1 legal: proof: d4 e5 Kd2 exd4 h4 g5 hxg5 b5 a4 f5 axb5 c5 b4 f4 Ra3 f3 Rxf3 c4 Rf7 c3+ Kd3 Qb6 Bf4 Qd8 Bd2 cxd2 Kc4 h5 g4 a5 e4 h4 f4 d3 g6 d5+ Kd4 h3 g5 a4 e5 a3 f5 a2 e6 a1Q+ Nc3 h2 f6 Ne7 Kc5 d4 g7 Nf5+ e7 Kd7 g8B Qa4 b6 Bh6 g6 Ra7 g7 Nd6 Qh5 d1Q b7 d2 b5 d3 b6 Qe1 Bg2 d1Q Na2 d2 Nf3 Qde2 Nh4 d1R e8B+ Ke6 Bb5 Rd4 Bf3 Bg5 Bc4+ Ke5 Bb3 Qg2 Re7+ Be6 Bc6 Rf4 Bf7 Rf8 g8B Qh3 Bcd5 Qg2 Bdc4 Ke4 Re8 Ke3 Bh7 Kd2 Be4 Bd7 Re6 Qh3 Nb4 Kc1 Na2+ Kb2 Bf3 Nc6 b8N Na5 b7 Ka3 Na6 Bh6 b8Q Nab7+ Kd5 Nc5 Qa8 Rg4 Qc6 Bd2 Qb7 Rf4 Qb5 Bc8 Kc6 Rc7+ Kb6 Bd7 Ba8 Qg2 Rf1 h1Q Qc6 Qhh3 Rh1 Be8 Qb7 Re7+ Ka7 Bd7 Be8 Ref7 Qbd5 Rg7 Bf7
4r3/n1bqN3/2QPb3/1nqBR1b1/1k3N1Q/3bPN1R/r1nK3b/3N2BQ b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 d4 Kd7 h4 Kd6 h6 f5 b6 c5 h7 g5 h5 c4 b7 f3 h6 f2+ Kd2 g4 Bh3 f1B Ba3 c3+ Ke1 g3 Rh2 c2 Bc1 f4 Ra6+ Nc6 b8N f3 Bd2 c1B Qc2 b3 Nc3 b2 Be6 b1N Rh3 g2 Ra5 Nb4 Nd1 Na3 Nc6 Qd7 Ne7 Nb5 Be3 Ra7 Bf2 Bg5 e3 Bd3 Kd2 Bg7 Qa4 Nc2 Bf7 Be5 Be6 Kc7 d6+ Kb6 d5 Kc5 Qe4 Bg3 Qg6 Kb4 Bf7 Qc6 d7 Qc5 d8Q Bc7 Qc6 Be6 d6 Ra6 Bh4 f2 Nf3 f1Q Bf2 g1B Qda8 Bb3 Bd5 Bh2 Bg1 Ba2 Ng6 Ra7 Nf4 Ne7 Qab7 Rd8 h8N Re8 h7 Nc8 Nhg6 Ra6 h8Q Na7 Ne7 Bac4 Rg3 Qh3 Qh4 Qd7 Rh3 Bf5 Ra3 Bcd3 Rc3 Ra2 Rc4+ Ka5 Re4 Be6 Re5 Ra8 Qb8 Kb4 Qbh8 Re8 Qg7 Bf6 Qg2 Bg5 Qh1
5B2/Kb1Q3N/P3r3/Q1P2Bbk/N1br4/B1B4R/nb3Rbn/3qRq1n b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 a5 f4 e5 fxe5 f5 b4 axb4 d4 cxd4 exf5 Ra3 Bg2 Ra7 Bf1 Ra8 Kf2 Kf7 a4 g5 h4 b5 c4 d5 a5 g4 h6 g3+ Kf3 d3 Ke3 d4+ Ke4 d2 h5 d3 h7 b3 a6 b4 f6 g2 c5 b2 h6 Kg6 e6 b3 e7 Bb7+ Ke5 Bg7 e8R Nc6+ Ke6 Nb4 f7 Nf6 f8Q Ng4 Rh5 Na2 Nf3 g1B Nc3 b1Q Ba3 b2 Ng5 Be3 Rh3 Nh2 Na4 Bgd4 Qe1 d1B Qe7 d2 Rf8 Bdf3 Qd7 d1N Kd6 Nf2 Qa5 Nh1 Bd3+ Bfe4 Rf1 Re8 Rf2 Qf1 h8B b1B h7 Bb2 Bc3 Bc2 h8B Bb3 Nh7 Bg5 Bcg7 Bc4 Re1 Re5 Bf8 Ra7 Be2 Bg2 Bg4 Re4 Be6 Rh4 Bc3 Kh5 Bf5 Ra8 Ke5 Rc8 Qdb5 Qd1 Qd7 Qg4 Kd6 Re8 Kc7 Re6 Kb8 Qd1 Rhe3 Rf4 Ka7 Rd4 Rh3+
QQ3q1r/6bP/8/4R1NR/1R1nqrPK/4Qb1B/NRB4b/n1r1rkr1 b - - 0 1 legal: proof: c4 e5 a4 h5 b3 b5 axb5 d5 cxd5 h4 Bb2 e4 Qc2 e3 Bf6 exf2+ Kd1 gxf6 Qg6 f5 Qh7 f4 Qxh4 Ba3 Qh7 Bf8 h4 Kd7 d4 Kd6 e4 a5 Ke2 f5 Kf3 c5 b6 a4 h5 a3 b7 a2 h6 c4 b4 c3 b5 c2 b6 c1R Nh3 Nd7 b8R Qf6 b7 Bg7 Ng5 Ra4 Nc3 Qe7 Bd3 Nc5 Bc2 Nb3 Rb1 a1B Na2 Qe8 Re1 Ne7 Rb2 Nc6 Qg6+ Be6 h7 Qe7 Qh6 f1R+ Ke2 Rh1 Kf2 f3 Kg3 Rg1 Kh4 f2 Re2 f1Q e5+ Kc7 d6+ Kb6 d7 Kb5 d8R Kc4 d5 f4 d6 f3 d7 f2 Rg8 Ncd4 d8Q Bg4 e6 Be5 Re8 Bh2 Re5 Qe1 Rf8 Qe4 Rff5 Qf8 e7 f1R e8B Rfe1 Bd7 Rb4 Qa5 Ra4 Qa8 Rb4 Bd1 Kd3 Bc2+ Ke2 Qb6 Bf4 Qc5 Kf1 Qc3 Rc4 Qe3 Ra4 Rbe8 Rc4 b8Q Rb4 Rb5 Ra4 Rfd5 Bh2 Ree5 Rc4 Rb1 Bc3 Rb4 Na1 Bc8 Rc6 R1b2 Rf6 Rd6 Rf2 Rh6 Rf4 Rh5 Nc6 Reb5 Bg7 Re5 Nd4 Qd2 Bd1+ Bg4 Rf3 Qf4 Rf2 Bh3 Bg4 Qg3 Rf4 Qe3 Bf3+ g4+
qr2RQK1/5N1P/k3r1nP/N2q4/1q4Rq/R5Bb/1b1nnqQ1/1R2NB2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kf3 Kb6 Ke4 f5+ Ke5 g5 d4 c4 h4 f3 e4 f4 h6 f2 h7 b3 h5 c3 h6 c2 d6 f3 d5 g4 d7 g3 Ke6 g2 Kf7 b2 e5 Ra6 d6 Qh4 d8N Bg7 d7 Ne7 e6 Ng6 e7 Nc6 e8R Nd4 Nd2 b1Q Nb3 Ne2 Na5 Qbb4 Qd5 Bb2 Bf4 c1Q Bg3 Qc6 Ra3 Qa8 Re4 Ka7 Rg4 Re6 b6+ Ka6 b7 Rhe8 b8Q Rh8 Nh3 g1Q Nf4 Qg2 Nd3 Rg8 Rg1 Qgh1 Ne1 Rh8 Bg2 f1Q Qa2 Qf2 Bf1 Qfb6 Qd5 f2 Qg2 Q6c5 Qf4 Qcd5 Qf6 Q1h2 Kg7 Rf8 Nf7 Re8 d8R Bd7 Rc8 Rd8 Rcc4 Rb8 Rc8 Qh1 Ng5 Rb5 Rgc4 Be8 Kg8 Bd4 Qf8 Reb6+ Nf7 Bd7 Re8 Bb2 Rce4 Qf6 Nf3 Qhh4 Rd4 Bh3 Rg4 Re6 Rh1 Nef4 Bd3 f1N Qh2 Nd2 Rb1 Qff5 Bf1 Ne2 Ne1 Qf2 Qg1 Rb8 Qg2
NK1n2nQ/1R2B1bQ/qN3Rnn/4rBr1/1bQ4P/2q1Rb2/2q4P/1R3k2 b - - 0 1 illegal: No possible last move
n5Q1/N7/1br1N1q1/RqRrPrB1/5b2/k1PBQKQq/5BnB/n1q5 b - - 0 1 illegal: No possible last move, all moves rejected
2q1QKQ1/1Q6/b3Rnr1/n1P2k1r/q3RB1q/P2rNQ1B/n1N2B1r/b7 b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 a5 f4 e5 fxe5 f5 b4 axb4 d4 cxd4 exf5 Ra3 Bg2 Ra7 Bf1 Ra8 Kf2 Kf7 Kg3 g5 Kg4 d5 c4 b5 h4 d3 c5 b3 e6+ Kf6 h6 b4 Kh5 d2 h7 d4 e7 g4 e8Q d3 Nf3 b2 Ne5 b3 Na3 b1Q Qf3 d1Q Bh3 b2 Nc2 d2 a3 g3 Re1 g2 Re4 g1R Qb5 Rg6 Qb7 Qd7 Ra2 Bg7 Ng4+ Kf7 f6 Nc6 Re6 Na5 Ra1 Qh1 Re4 d1N Bf4 Nc3 Re6 Qbf1 Rae1 b1R R1e5 Qb5 Re4 Rh6+ Kg5 Rb2 h5 Rg6+ Kf5 Ra7 h6 Na2 Ke5 Qa4 Kf5 Kf8 f7 Nf6 Ke5 Qe8 Kd6 Qh2 Qa8 Ba6 Qb7 Rg8 h8B Qc8 h7 Qg3 Na1 Rh2 Nc2 Qh4 Qb5 Nh5 Qb7 Ba1 Bd4 Nf6 Bf2 Kg7 Ke7 Rh6 f8Q+ Kg6 h8Q Rh5 Qe8+ Kf5 Kf7 Rg6 Kf8 Ra8 Qg8 Rb8 Qc6 Rb3 Qb7 Rd3 Nge3#
Q1RNQ3/1NB1rQnn/b4r2/2P4R/2qPnqB1/6q1/r2knb1B/1K3Q2 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 h5 g4 Bb7 gxh5 Bc8 c4 d6 Qg4 d5 axb5 cxb4 c5 Ba6 Qh4 Bc8 Qc4 dxc4 Kd1 Kd7 Kc2 g5 d4 a5 f4 e5 h4 c3 b6 Kc6 h6 Kd5 h7 Ke4 b7 b3+ Kd1 c2+ Kd2 b2 h5 g4 f6 g3 f7 g2 f5 a4 f6 a3 h6 a2 Na3 b1N+ Ke1 Qd6 Ba6 Nd7 b8B Nc3 Kd2 Ne7 Nh3 g1Q Nf4 Nf5 Bf1 Ba6 Bc7 Ng7 Bh3 Qg3 Ne6 Be7 Bg4 Rhf8 h8Q Qd5 h7 Qc4 Rb1 a1Q Nd8 Qb2 Rh5 Qb8 Nb5 Bd6 Ba3 c1N Kc2 N1e2 Bc1 Be7 Kb2 Kd3 Bf4 e4 Ka1 e3 Nd6 Ne4 N6b7 Kc2 Re1 Kd2 Kb1 Qg2 Bh2 Qg3 Qg8 Bd6 h8Q Bf4 Re5 Bg5 Qgh7 Bh4 Rh5 Qf4 Qf5 Bf2 Qe6 Qg3 Qe8 Ra7 Bb6 Qbf4 Bc7 Nc1 Rh1 e2 Qh7 e1R Rg1 Rg8 f8Q Re3 f7 Ndf6 Qf5 Nh7 Qfe7 Rh8 f8Q Ne2 Q7f7 Ra3 Qc8 Ra2 Qa8 Rg8 Qd6 Rf8 Qdf6 Qd6 Qf3 Qgf4 Qh3 Qg3 Qf1 Qdf4 Qfd7 Rf6 Qdf7 Qh4 Rg3 Qh3 Rb3 Qh4 Rb6 Qhg3 Rc6 Nhg5 Ba5+ Qgc3 Rc8 Nh7 Nd6 Re7 Bc7 Qcg3 N6b7
2n1k2N/6q1/bQ6/P1B1Qbnq/4N2R/1PB3B1/1Kb2Qqr/1R1Bbnr1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b3 a5 Rh3 a4 Rh1 a3 Qc2 Qd6 Qb2 Qd8 Ba6 axb2 Bxb7 Qd7 Kf1 Qd6 Ke1 Qd8 Kd1 c5 Kc2 e5 d4 h5 f4 c4 a4 e4 g4 e3 g5 c3 d6 e2 d7+ Kf7 d5 e1Q d6 h3 f6 h2 a5 h4 f5 h3 Nd2 Qee8 Rb1 Qc7 d8Q Nc6 d7 Ne5 Ne4 Ne7 Bd2 Nf3 Ne2 Rh5 Bc6 Ba6 Nf4 Nc8 Ng6 Bb4 Nh8+ Kf8 g6 Ng5 f7 Rh4 Rhf1 h1Q Rf4 h2 Be1 Rh5 Rh4 Qg2+ Bf2 Qe5 Qb6 h1B d8B Qg7 Bf6 Ra7 Bd4 Rd7 Be5 Rd1 Ba8 Ke7 f8B+ Kd7 f6 Rg1 f7 Rh6 Rf1 b1B+ Kc1 c2 Bfg3 Be1 Kb2 Rh5 Bc5 Rh7 f8Q c1N+ Qf2 Ne2 Bf6 Bc2 Bc3 Qef7 Bd5 Ke8 Be6 Qff3 Bf5 Qh5 Bg4 Bd2 Rb1 Be1 Bb8 Ng3 Bd1 Nf1 Bg3 Qe7 g7 Qef7 g8Q+ Qf8 Qc4 Qg7 Bb4 Qgg6 Rf4 Qhh2 Qbd4 Qg7 Qcd5 Qgh3 Nd2 Bhe4 Qb6 Q2g2 Bc5 Bf5 Ne4 Qg4 Qdd6 Rh2 Qdb8 Qe2 Rh4 Qh5 Qe5+
2K1B3/R2Nb3/PQ2q1N1/nn1b2P1/r7/3rRrB1/1r1BNQkB/3n1qq1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 g6 Kd7 Kd2 Kd6 Kd3 Ke5 Kc4 Ke4 Kc5 b5 a4 h5 g4 e5+ d6 b3 f4 h4 g7 b2 g5 b4 f6 h3 f5 h2 a5 d3 f7 b3 f6 d2 Ra3 Qe8 Kb6 Be6 Kc7 Ne7 g8Q Nc8 d7 Na7 d8B Rh3 Bb5 Nbc6 Nc3+ Kf4 Qg7 Kg3 Nd5 b1R Qg6 e4 Nb6 e3 a6 b2 Kb7 Ra1 Bc7+ Kg2 Ba4 e2 Re3 e1R Ne2 b1Q Be5 Bc5 f8N Rd8 f7 Rf3 Bg3 Rd3 Qf6 Bc4 Ng6 Na5+ Kc7 Qg8 Be8 Nb5+ Kc8 Ra4 Qd4 Bd5 Rf1 h1Q Bh2 Rf2 f8B Qf7 Bfd6 Qg1 Bdg3 Rf6 Rf4 Rf5 Rh4 Rf3 Rh7 Qe6+ Rd7 Be7 Qc5 Qg8 Ra7 Qe6+ Nd7 Ref1 Qb6 R1f2 Nd4 Qa1 Qe2 d1N Qd2 Ndc3 Qd1 Rfd2 Ne2 Rb2 Bd2 Qb1 Qc2 Qbe1 Qc1 Qef1 Qe1 Nd1 Qf2+
3Bq3/1Pnnr3/R3Nb1B/B3nr2/B1bKN3/5q1Q/b2Q1NPR/1rn3k1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 Kd6 f4 Kc5 d6 h5 d7 e5 f6 e4 f7 h3 f5 h4 d3 h2 b6 h3 f6 b3 b7 b2 Ra2 Rh5 Qd2 Be7 f8Q Qe8 d8N Nd7 f7 Ngf6 Nc6 Rf5 Nd8 Nd5+ Ke2 Kd4 Nc3 b1B Na4 c5 Qc2 c4 Ba3 c3 Qd2 c2 Ra1 e3 Bb4 Nc7 Nc5 Ba2 Qh6 Bf6 f8B Ra6 Bg7 Re6 Ba5 Re7 Ne4 Bc4 Qh4 Ba2 Bh6 c1N+ Ke1 e2 Ne6+ Kd5 d4 Kc4 Qdf4 Kd3 Kf2 Bc4 d5 Ba2 Ng7 Kd4 d6 e1N Bd3 Nf3 Bb5 Nfe5 Ba4 Kd3 Ne6 Bc4 Ne2 Ba2 N2g3 Bc4 Rf1 h1Q Qg4 h2 Qh3 Nb3 Rfc1 Qd1 Ra2 Qdh5 Rh1 Nc1 Ra1 Nf8 d7 Qf3+ Ke1 Ba2 d8B Bd7 Qg5 Bb5 Qf4 Nfd7 Qd2+ Kc4 Nf2 Ba6 Rg1 h1R Nge4 Bb5 Qc3+ Kd5 Kd2 Bbc4 Re1 Ncd3 Re3 Rb1 Re1 Nc1 Rh1 Bd3 Qb4 Bb5 Rh2 Bbc4 Nf8 Kd4 Kc2 Rf4 Ne6+ Ke3 Kc3 Ke2+ Kd4 Kf1 Qd2 Kg1 Qh5 Rf5 Qh3 Bab3 Ra3 Ba2 Rb3 Nd5 Rb6 Nc7 Ra6
k1R3n1/1Rr1QPK1/1n2rN2/Qqb4N/2r5/N1bnRB2/b2r2P1/B2b1N2 b - - 0 1 illegal: No possible last move
1BQ1k2r/2bN3r/br2b1qB/2RQ3b/q1P1r3/nN2N3/4QQ1P/2RnK3 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 c4 e5 b4 d5 b6 a5 g7 d3 f6 d2+ Ke2 a4 b5 d4 g6 a3 b7 g3 b6 g2 Nf3 g1Q Bb2 a2 Nh4 d3+ Kf3 e4+ Kf4 e3 Kf3 e2 Bc3 e1R Ba5 Rh7 Nf5 Nc6 b8Q Qd7 b7 Bd6 Qe2+ Nge7 g8N d1B g7 d2 Ne3 Qg6 Kf2 Nb4 Rg1 Ra6 Rg5 Qa4 Rc5 Nc2 Qa7 Bc7 b8B Re6 Qb7 Nd5 Bc3 Rb6 f7+ Kd7 f8Q Na3 Bf6 Nc3 Bg5 Rh8 Qf6 Ke8 Bh6 Bc2 Qff3 d1B Nd2 B2f5 Rc1 a1R Nb3 Bfe6 Qf6 Ra2 Qf5 Rd2 Qc2 Rd7 Nf6+ Kd8 g8Q+ Ke7 Qd5 Ba6 Qc8 Kf7 Qcb7 Ke7 Qf1 Bh5 Qfe2 Kf7 Qcd2 Re7 Nd7 Ke8 Qa2 Reh7 Qac2 Rd1 Qb2 Rd4 Ke1 Nd1 Qf2 Rg4 Qbe2 Re4 Qc8+
1r1R4/1r2BQr1/3nn1bq/1k1B2r1/1PqbQ3/N3b1BP/3N1b1K/1R3BQ1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 Kd7 Kg2 a5 b4 c5 d4 e5 d6 a4 g6 f3+ Kg3 f2 f6 a3 h3 c4 g7 c3 b6 Kc6 f7 a2 b7 e4 d7 c2 Bh6 c1Q Na3 e3 Ne2 Nf6 g8B Rh7 Rg1 Rg7 Bf4 Ne8 Nb1 Qh4+ Kh2 g3+ Kh1 g2+ Kh2 Qc4 d8B Qh6 d5+ Kb5 d6 Nd7 Nd2 Nc5 d7 Nd6 Bg3 Rb8 Be7 Ne6 Rd1 a1B d8Q Bd4 Qe8+ Bd7 Rh1 g1R Rb1 Rg5 Rd1 Bfg7 f8Q Bc6 Qg6 Be8 Qe4 Bg6 Qf7 Bb6 Rb1 Bgd4 Rd1 Re8 b8Q Rf8 Nf4 e2 Qa7 e1B Ng2 Rb8 Ne3 Rb7 Nc2 Be3 Bd3 f1R Be2 Rf4 Bf1 B1f2 Qe5+ Nc5 Qe4 Re5 Bgh4 Be1 Qe6 Rf8 Q6d5 Bf7 Qe6 Rg7 Nb1 Nc8 Bd3 Bg5 Bg3 Bg6 Be2 Bf6 Rd7 Rd8 Nd2 Nd6 Bd3 Rc8 Rd8 Rg5 Q6f5 Be5 Bd5 Rcb8 Qf7 Ne6 Qa1 Bef2 Qa7 Bfc5 Rb1 Bf4 Bf1 Be5 Qh1 Bf4 Qg1 Bf2 Qa3 Be5 Qd3 Bbe3 Qe4 B5d4 Na3+
3Q1rB1/2P2Pr1/q2R2kN/b4Q2/1BQQ2K1/n2n2n1/q4bbR/1N1nbB2 b - - 0 1 illegal: No possible last move
1Q2Nbn1/2qB1k2/Q1qbR3/3BnK2/r1N2PRP/n3Rn2/nQQ5/4qb2 b - - 0 1 legal: proof: f4 d5 c4 f5 cxd5 e5 a4 exf4 g3 b5 axb5 f3 Qa4 f4 Kd1 f2 Kc2 Nf6 Kd3 Kd7 Qd1 Ng8 Kc2 Ke8 b3 a5 Ba3 h6 Kc1 f3 Be7 Ra6 Bh4 Rf6 Bg5 Rf4 gxf4 hxg5 Kc2 c5 Kd3 c4+ Ke4 a4 d4 c3 h4 a3 b6 c2 d6 c1Q d7+ Ke7 d5 a2 d6+ Kf7 b4 g6 b7 g4 b5 g5 b6 g3 Nd2 g2 Qc2 g4 Nh3 g1B Nc4 g3 Kf5 g2 e4 Qe7 e5 Na6 b8Q Rh6 b7 Re6 d8R Nb4 d7 Ra6 Re8 Ra4 Bd3 f1N Be4 Bb6 Nf2 g1N Ng4 f2 Nf6 Nd2 Rh3 f1Q Re3 Qfe1 Bg2 Qd6 Re6 Ngf3 d8Q Bc5 Ne8 Qc6 Qb6 Bcd6 Qa6 Bd7 Rb1 a1N Rbb3 Na2 Rb6 Nh2 Bd5 Ng4 Rbb3 Bc8 Rg3 Nf3 Re3 Nf2 Rg4 Nd3 Qb2 Nc2 Qc7+ Bd7 b8Q Na3 Qc2 Qb6 Qcb7 Qc7 Qbb2 Bb5 Rf6+ Ke7 e6 Nde5 Qbb6 Kd8 e7+ Kd7 Re6 Qc6 Na5 Bf1 Nc4 Qc7 Qb8 Qc6 Qf2 Qcc3 Qfc2 Qa5 Qe4 Qac7 Qec2 Qd8 Ng7 Qdc8 e8B+ Kd8 Q8b4 Qb8 Bd7 Qbc7 Rf6 Ke7 Re6+ Kf7 Ne8 Qa1 Qbb7 Qe1 Qb8
BRq5/2R4q/5q1q/1K4N1/1Q2PNB1/Nr1Pr1r1/5nBn/qNQ1nk1b b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 Nf3 g4 Ng1 g3 h4 Qd7 b3 Qh3 Bb2 Kd8 Bd4 Be7 Bf2 Bg5 hxg5 Ba6 g6 Bb7 Qc1 gxf2+ Kd1 Ke7 g4 Ke8 g5 Qc8 Kc2 Ba6 Qd1 Qd8 Kc1 Bc8 Kb2 Kd7 Ka3 Kd6 Ka4 Kc5 b6 Kd4 d6 f5 d7 a5 g7 c5 g6 h5 b4 c4 d3 Ke3 b7 c3 b5 f3 b6 h4 Qe1 c2 Rh2 c1Q Rh1 h3 Ra3 h2 Nc3 f4 Ra2 Rh3 Ra1 Na6 b8N Nb4 b7 Nf6 g8B Ng4 g7 Nc2 Bf7 Rg3 Nc6 Rb8 Kb5 a4 g8B a3 Rb1 a2 Ne5 a1Q Bg2 f1Q Bd5 f2 Bge6 f3 Nh3 Qg8 d8N Qh7 Qd1 Ne1 Nf4 Qh6 Rg1 h1Q Ndf7 Qh7 Bd7 Q1h6 Ng5 Qc2 Bf5 Be6 Bde4 Bd5 Bh1 Re8 b8Q Re6 Rc1 Re7 Nb1 Qc8 Bd7 Re6 Rc7 Rb6+ Kc5 Rb3 Qb4 Ba8 Kb5 Bd5 Nc6 Qaf6 Rg2 Qg1 Ne5 f1R Rh2 f2 Bhf3 Qh1 Rh5 Rfg1 Rh3 f1N Qc1+ Kf2 Nc4 Nfh2 Nca3 Kf1 e3 Nf2 Bdg4 Bf7 Ba8 Bd5 Bd1 Bg2 e4 Re3 Rh4 Bf3 Rh5 Rg3 Rh4 Bg2 Bdf3 Qhf8 Rh6 Qg1 Rg6 Bh1 Rg8 Q8h6 Re8 Qg2 Rg8 Qgh3 Rd8 Qa1 Rg8 Qhf6 Rf8 Q3h6 Rd8 Qce6 Rb8 Qc8 Bg2+
1k2b1nB/N3q3/4B3/NR2r1r1/1P4b1/KBq2PrQ/bBq3r1/Q1r1RR2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 g3 b5 axb5 Bh6 Ra6 Nc6 Ra1 Nb4 e5 Nd5 e6 Nf4 gxf4 g4 h4 Bg5 hxg5 fxe6 Ra3 e5 Ra1 e4 Kd2 h5 b4 e5 c4 d5 Kc2 Kd7 Kb2 Kc7 b6+ Kb8 f5 a5 f6 g3 g6 h4 b7 a4 f7 d3 f8R h3 c5 h2 g7 g2 c6 d4 Ka3 d2 Qe2 d1Q Be3 d3 Rf6 d2 Ra2 Ra5 Qd3 Bg4 Ra1 Qc2 Qd4 d1B Nd2 Qe7 Ne2 g1R Nc3 Rg2 Nb5 Rh3 Na7 Rhg3 Nb3 Bdf3 Rg1 h1B Bc1 e3 Bc4 e4 Re1 e2 Be6 e3 Bb2 Rg5 Na5 Bd5 Rf5 Ba2 Rf1 e1R Rb5 e2+ f3 Rc1 Bb3 e1R Rb1 Ree5 Re1 Nh6 g8B Bd7 Qg1 Be8 Bge6 Ng8 Qf1 Rg1 Qh3 Bg2 Qh1 Bh3 Rf1 Bg4 Ra1 Kc7 b8B+ Kd8 Bd6 R1g2 Bc5 Kc7 Bb6+ Kb8 c7+ Ka8 B6d4 Ree1 Nc8 Re4 Bh8 Ree5 Nd6 Ka7 Qh3 Ka8 c8Q+ Ka7 Qc3 Ka8 Ndb7 Kb8 Nc6+ Kc7 Nba5 Rd1 Bc1 Bb1 Rd5 Rde1 Na7+ Kb8 Ra2 Qd3 Re2 Qc2 Bd2 Rc1 Ree1 Qch7 Kb2 Qf5 Bc4 a3+ Kb3 a2 Ka3 Qg6 Bb3 Qc2 Qb2 a1Q+ Qa2 Qac3 Qa1 Qcc7 Bc3 Ba2 Bb2 Q7c3 Rb5+
7r/1qqrnk1r/2B5/n1Qr3n/P3NR1Q/1r2R2R/Q1qPbBR1/2N4K b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 g5 f4 gxf4 h4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 e5 Kg2 b5 a4 h5 d6 c5 g7 e4 d7+ Kf7 f6 c4 Bb2 b3 Be5 c3 Ne2 h4 Ng1 f3+ Kh2 c2 Bg2 c1Q Bf4 h3 Bd6 b2 Qe2 f2 Bc5 b4 Ra2 b3 Qg4 e3 Be4 e2 Bc6 e1R Qb4 Re7 Nc3 b1R Ra3 b2 Qb5 Ba6 Nge2 Qc2 Nc1 f1N+ Kg1 Qb6 d8Q Ng3 Bf2 Nh5 Qc5 Be2 Ne4 Qc7 Re3 h2+ Kg2 Rd7 g6+ Ke6 f7 Ne7 g8Q Ra5 g7 Rh7 Re1 h1R Rd1 Rh4 Rh1 Rb5 Rhh3 Ra5 Qa3 Rad5 Kh1 Rh8 Qc5 Rh7 Ba8 Nbc6 Bb7 Na5 Bc6 Kf5 f8R+ Kg6 Rf4 Rh8 Qb8 Rh7 Qb3 Rh8 Qd8 Rh7 Rg4+ Kf7 g8R Rh8 Qbc3 Nf5 Nf6 Nhg7 Rf4 R4h7 Q3c4 Nh5 Rfh4 Qd3 Ne4 Qc2 Qg5 Ne7 Rg4 Ra1 Qa2 b1Q Qh4 Qbb7 Rg2 Rb1 R8g4 Rb3 Rf4+
1R1NbnR1/1B2QN2/1n1q2B1/n2b3P/1rBP4/K3n1n1/Q2Bn3/k4qbR b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 f4 e5 a4 d5 cxd5 b5 axb5 exf4 Bb2 a4 Bc1 Ra5 bxa5 Qd7 Bb2 Qe7 Bc1 Qd8 e4 Ke7 h4 Kd6 d3 Kc5 Kd2 Kb4 Kc2 f5 Kb2 g5 h5 c5 d6 g3 e5 f3 b6 f2 e6 f4 d7 c4 e7 a3+ Ka2 c3 e8B c2 a6 g4 b7 g2 a7 f3 a8B g3 Be2 f1N Nc3 f2 Nf3 g1N Bg5 c1Q Be3 g2 Bg6 Bc5 Rh3 Nf6 Bf5 Nh7 Bg6 Nf8 Bh6 Ne3 Bg5 f1B Qd2 Bb6 Bd1 Ne2 Rh2 g1N Bh4 Bg2 Bb3 Ng3 Ne5 Qf1 Bc4 N1e2 Bg5 Bd5 Rg2 Qc7 d8Q Qd6 Bf4 Bd7 Nf7 Be8 Qe7 Nbd7 Nd8 Ba7 b8R+ Nb6 Bb7 Rg8 Bf7 Rg4 Ne4+ Ka4 Ng5 Rh4 Rd1 Rg4 Ka1 a2 Kb2 a1N Bg6 Nb3 Ngf7 Na5 Ka2 Rh4 Qc2+ Kb4 Qb1+ Kc3 Bh6 Qdf6 Ka3 Qe6 Qa2 Qef6 Bb5 Rb4 Bc4 Qd6 Bf4 Qf3 Rh1 Qf1 Qb1 Kd2 Qb3 Kc1 Qa4 Kb1 Bg5 Ng4 Bd2 Ka1 Qc2 Nbd7 Qa4 Bg1 d4 Nb6 Qb3 Nf5 Bh7 Nge3 Rg8 Nfg3 Bg6 Bf3 Qc2 Bd5 Qa2#
1k6/R2q4/2n1QbQP/rqr2bbR/3P2B1/2rN2r1/1N3BNK/rr1QQ3 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 h4 d5 cxd5 g5 a4 h5 axb5 Nd7 Rh2 Ndf6 Rh3 gxh4 Rh1 h3 Ra3 h4 Ra1 Nh5 gxh5 Qf6 Rh2 Qe7 Rh1 Qd8 Kf2 Kd7 b4 f5 d4 c5 e4 Kc7 d6+ Kb8 h6 a5 e5 c4 b6 h2 Kg2 c3 b7 a4 e6 c2 b5 h3+ Kf2 a3 e7 a2 e8Q f3 Kg3 f2 d7 Be7 Be3 c1B Be2 f1Q Bg4 Bf6 Qe6 Ra5 Nf3 Ne7 Na3 Nc6 Nc4 Rg8 Bf2 Bcg5 Nh4 Rg7 Ng2 f4+ Kf3 Qe7 d8Q Qd7 Nb2 Qc4 Qb6 Qcd5+ Ke2 f3+ Kf1 Rg8 Qd8 Qf5 Qde8 Qc5 Qg6 Rg7 Rb1 a1R Qee1 R1a3 Ra1 Rc3 Qe6 Qf7 Qee1 Bf5 Qe6 Qd7 Ra2 Ka7 b8N Ka8 b6 Qb5+ Nd3 Rg8 Na6 Rc8 Nb4 Kb8 b7 Rc5 Rg1 h1R Ra3 h2 Ra1 Rc4 Nb2 Rc3+ N4d3 Rc5 Be3 Rg8 Kf2 Rc3 Kg3 f2 Qe1 f1R Bf2 Rg7 Qd1 Re1 Ra2 Re5 Kh3 Ra8 Ra7 Rec5 Re1 Rf1 Re5 h1R+ Kg3 Rhg1 Kh2 Re1 Re3 Ref1 Rh3 Rg8 Rh5 Rg7 Qdb3 Ra1 Qa4 Rgb1 Qd1 Ra5 Nh4 Nb4 Ra6 Ra2 Bh3 Re7 Qb6 Raa1 Bg4 Re3 Qe6 Kc7 Ra2 Rg3 Qee1 Qc4 Ng2 Nc6 Ra4 Raa5 Ra2 Rab5 Ra7 Rba5 Qde2 Qa6 Q2d1 Kb6 b8Q+ Qab7 Qbe8 Kc7 Qef7 Kb8 Qfe7 Qb5 Q7e6
8/1krNPqR1/3PN1bb/q3QQ2/2B2b2/3rQB2/3bR2n/1K1brrRR b - - 0 1 legal: proof: c4 g5 f4 d5 cxd5 e5 b3 exf4 a4 b5 axb5 g4 Ra2 g3 Ra3 Nc6 Ra1 Nb8 h4 Qg5 h5 Qh4 Bb2 Ba6 Bd4 Nd7 Be3 Ne5 Bf2 Ng6 hxg6 Ke7 Qc1 gxf2+ Kd1 Bg7 g4 Bf8 Kc2 Kd7 Qd1 Qd8 g5 Ke8 Kc1 Bc8 d4 Kd7 e4 c5 e5 Kc7 b6+ Kb7 g7 h5 b4 f5 e6 a5 d6 c4 b5 f3 d5 a4 d7 h4 d6 a3 e7 c3 g6 h3 Qd2 h2 Bd3 f1R+ Qe1 f2 Bc4 c2 Nh3 f4 Nc3 a2 Ng5 f3 Nd5 Nf6 g8R Bh6 g7 Ng4 Nf6 Ra7 Be2 Qc7 d8Q Bf5 Nd7 Bg6 Qf8 Qc5 Rb1 a1B Qf5 Bc3 Bd1 Rg1 Qe3 f1Q Ne6 f2 Rb2 Be1 Bf3+ Qd5 Ra2 Bd2+ Kb2 c1B+ Kb1 Qc4 Qe5 Bdf4 Re2 Re1 Rg1 Rh7 Rh8 f1R g8B Rf7 Rh7 h1B Rg7 Nh2 Qe3 Ka8 Qe5 Rc7 b7+ Ka7 b8R Rf6 Rc8 Kb7 b6 Qc3 Bf7 Qa5 Rh8 Bg2 Rhh7 Bh3 Qe3 Bg4 Qe5 Kc6 b7 Bcd2+ Kb2 B4h5 b8Q Bg4 Qf8 Kb7 Qd3 Rf5 Qde3 Rh5 Bg8 Rh3 Qf7 B4f5 Rh8 Bc2 Qff5 Bd1 Kb1 Rg3 Nef8 Qc6 Bc4 Qcd5 Bg4 Qf7 Ne6 Bhg5 Rh4 Bh6 Rh3 Nf3 Rhh1 Nh2 Q3c5 Rc3 Qce3 Rd3 Bf3+
1Bkq4/2nR2b1/PK2R2N/1N3QbP/1q1Rn3/rnQ1q1q1/3bRQ2/2B4b b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 Nd7 g4 Nb8 b4 axb4 f6 Ra7 Ba3 Ra4 Bc1 Ra8 f4 b5 f7+ Kd7 g5 h5 f5 Ra3 Be2 Ra6 Bg4 Rf6 gxf6 hxg4 Kf2 c5 Ke3 e5 d4 g5 h4 g3 a4 c4 d6 b3 d5 b4 a5 g4 h5 g2 Nc3 e4 Kd4 e3 Kc5 g3 Qf3 e2 Kb5 e1B Ra2 b2 Nge2 g1Q Nd4 b1Q Re2 Bg7 f8Q b3 f7 b2 f6 g2 Nf5 Qe3 Nh6 Bd2 Rhe1 Bb7 Qf2 Kc8 d7+ Kc7 Qf3 Na6 d6+ Kb8 Qf2 g1Q Qe8 Rh7 f8B Bh1 f7 Qgg3 Qe5 Nf6 Qc5 Nc7+ Kb6 Qbe4 Nb5 b1N a6 c3 Be7 c2 f8Q Qb4 Qd4 Ne4 Q8f5 Rh8 Bf6 Rg8 Be5 Nc5 Qdd3 Nc3 Qc4 N3e4 Qc3 Qc8 d8R Nb3+ Qc5 Rf8 Rd7 Qd8 Qd4 Kc8 Qc5 Qd3 Qc3 Bg5 Rd1 Qde3+ Rd4 Re8 Re7+ Qd7 Re6 Qd8 Bb2 c1B d7+ Kb8 Bd6 Bd2 Bc1 Re7 Rf6 Re5 Re6 Rc5 Qd3 Rc2 Qc3 Ra2 Be5 Qc8 d8R Ra3 Rd7 Qd8 Bf4 Kc8 Kc6 Ne8 Bb8 Nc7 Kb6
Nn1q1b2/4Pk2/5Rnb/Q3R3/B1b1b1K1/nnqr4/4PN1N/RQRB3q b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 cxd5 Bg4 d6 Bd7 d5 Bc8 Be3 a5 Bd4 exd4 f4 Ra6 Nh3 Rc6 Ng1 Rc3 Nf3 Re3 Ng1 Re5 fxe5 Ba6 Qc2 Bb7 Qd1 Bc8 Kf2 h5 Kf3 c5 g4 f5 b4 c4 e6 f4 b6 d3 b7 a4 g5 d2 e7 h3 b5 h2 b6 c3 g6 h4 g7 h3 d7+ Kf7 d6 a3 Bg2 c2 Nc3 c1B Ne4 a2 Kg4 f3 Nf2 Rh6 Qe1 d1Q Qa5 Be3 Rc1 Qc2 Ra1 Qc3 Rc1 Na6 b8Q a1N b7 Nc2 Ra1 Na3 Rc1 Qdc7 Ra1 Re6 d8R Bh6 d7 Re3 Rc1 Rd3 Re8 Ke6 d8R Kf7+ Rd7 Qd8 Ra1 Ke6 Rd5 Bd7 Rg5 Bb5 Re5+ Kf7 Rc1 Bc4 Ra1 Qd6 Rd8 Qc7 Rd6 Qd8 Rf6+ Ke8 Nd1 f2 Nf3 f1N Nf2 Nd2 Rhc1 h1B Nh2 Nb3 Bd5 Be4 Be6 Nc7 Bd5 Ne6 Bc6+ Rd7 Ba4 Nf4 Qc8 Ng6 b8N Bg2 Na6 Be4 Rb6 Kf7 Qb7 Rd1 Nc7 Rd7 Na8 Rd3 Nf3 h2 Rc6 h1Q Nh2 Nd2 Qb1 Nb3 Ra6 Bb7 Kf5 Nf6 g8B+ Kg7 Rc6 Nd7 Rf6 Nb8 Kg4 Be4 Bd5 Nd4 Bd1 Nb3 Bc6 Kg8 Ba4 Kg7 Rb6 Kf7 Rf6+
B1Bb1QQN/1RR3P1/b1b2r1n/3P1QN1/2nb4/3bknRK/3b4/qn2R3 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 Nc6 h4 Bd7 b3 Bf5 h5 Bc8 Bb2 Nb8 Bf6 Ra6 f4 gxf4 g5 e5 Be7 Rb6 Bc5 Rg6 hxg6 e4 Bf2 e3 Qc1 exf2+ Kd1 Bf5 Qc2 Bg4 Kc1 Bd7 Qd1 Bc8 d6 Kd7 e4 Ke6 d4 c5 Kd2 h5 Ke2 f5 Kf3 c4 Kg2 a4 d7 c3 b6 c2 b4 c1B b5 f3+ Kh2 a3 b7 a2 e5 Kd5 b6 Ke4 e6 h4 e7 f4 e8B h3 Ne2 Qf6 d8R Rh6 Bd7 Be7 Bg2 f1B Rg1 Nc6 b8Q Na5 b7 Ke3 Nd2 f2 Nf3 Nc4 Qc2 Bd2 Re1 a1B Qf5 Qg7 Qd6 Bb2 b8R Ba6 Rdc8 Bd8 Rc7 Bbc3 Ne5 f3 Nf7 Qh8 Kg3 h2 Bc8 h1B Nf4+ Be2 Nh3 Qg7 Ref1 Bd3 Qf8 Qf6 g7 Rg6 Nh8 Nh6 g8Q Qe5+ Nf4 Rf6 g6 Qa5 Qff7 Qa1 Rd1 f1N+ Kh3 f2 g7 Bb2 Qff8 Nh2 Ba8 Bc6 d5 Nf3 Rbb7 Bd4 Rg3 f1N Rg2 Bc1 Rg3 Nfd2 Ne6 Nb1 Ng5 Bd2 Re1+
8/n3KbRb/b5q1/bk1N1B1R/1Brb1B2/8/bP1PB2b/2QbQNNr b - - 0 1 illegal: No proof kernel forced: bxDB
3b3r/2BRBn1R/NK2k1n1/2Br2Q1/2rP4/1Q1Qnn2/1B1bPb1N/1b4r1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Bh3 f4 Ra2 Qg5 Ra1 Qf5 gxf5 Kd7 Bg4 hxg4 Qa4 Ke7 Qd1 Ke8 Kf2 Kf7 h4 g5 d4 c5 b4 a5 b6 c4 h5 a4 b5 c3 b7 a3 h6 a2 d6 c2 d7 g3+ Ke1 g4 Kd2 f2 Kc3 f1N Kc4 g2 d8B f3 f6 f2 h7 g3 b6 Ke6 Kb5 Nh2 f7 f1N Nd2 Nc6 b8B Ne5 b7 Ne3 Bbc7 Ng6 b8Q Ra4 Ngf3 g1R Be7 g2 Bb2 c1B Ne4 Rc4 Qd3 Nh6 Kb6 Bd2 Qb7 Bg7 f8B Bf6 Rf1 a1R Nc5+ Kf7 Rc1 Bf5 Na6 Ke6 Bc5 Nf7 Bfe7 Ra5 Rf1 Nhg4 Nh2 N4e5 Rc1 Nf3 Rc2 Rf8 h8Q Rb8 Qh4 Rh8 Qg5 Be4 Bb4 Rd5 Bec5 Bd8 Be7 Rb1 Bbc5 g1B Rc1 Bf2 Rcg1 Re1 Rg3 Rec1 Rh3 Re5 Rh7 Rd5 Rg1 Rd1 Rg4 Rg1 Rf4 Nh6 Rff7 Bf5 Rfg7 Nf7 Kb5 Nf8 Qa3 Be4 Bed6 N7e5 Rd7 Nfg6 Be7 Bc2 Qd3 Nf7 Kc6 Bb1 Qbb3 Nd1 Kb7 Ne3 Kb6
n4nq1/2n1r3/2K1Q1Bn/2NB1PBk/1QqNP1rr/2R1B3/5q2/1r1R2Nn b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 axb5 g5 Bf4 gxh4 Bc1 f4 Be3 e5 Qe2 Bb4+ Nd2 Bb7 Qd1 Bd5 Rb1 Be6 Ra1 Bf5 exf5 e4 Ke2 Bc3 Nb1 Ba5 Bc1 e3 Kd3 e2 Na3 Bd2 Nb1 Be3 fxe3 Qe7 Kd2 Qd8 g4 Kf7 Kd3 e1R Ke4 h5 Kd5 a5 c4 d3 b4 d2 c5 f3 c6 h3 b6 h4 b5 a4 b7 a3 b6 f2 c7 h2 c8B h3 g5 a2 g6+ Kg7 Bg2 Kh6 g7 f1Q Qe2 d1N Ba3 Qf2 Nc3 Nb2 Nf3 Ra4 Nd4 Nc4 Qf1 Kh5 Bc5 Nh6 Rc1 a1Q g8Q Qaa2 Qe6 Qg8 Nce2 d6 Be4 Nd7 b8N Nf8 b7 Nb6+ Kc6 d5 Ng1 Qc4 Na6 Na8 b8B Rh7 Bf4 Re7 Rc3 Rb1 Bg5 Rab4 Nde2 d4 Qe1 d3 Bd5 d2 Nd4 d1N Qd2 Rb8 e4 Ne3 Bb7 Rbe8 Qb2 Rg7 Qb4 Ree7 Ngf3 Rg6 Rd1 h1N Ng1 h2 Bc8 Qb3 Ba7 Qc4+ Nc5 Rgg7 Bh4 Rg4 Bg5 Ng3 Bd7 h1R Bb6 Rhh4 Be8+ Qg6 Bf7 Nh1 Bg8 Qg7 Bh7 Qg8 Ba7 Nc2 Bb8 Na3 Bbf4 Nb5 Be3 Nbc7 Bg6+
N1bnbR2/Rk3B2/nN2N3/3K2bQ/3b4/3nb2Q/r2P1b1P/nn1RB1R1 b - - 0 1 illegal: No possible last move
q2R1bK1/rR6/rbQb4/3BN1Nb/4Q2P/N4qQ1/1Br1NrP1/1kbb4 b - - 0 1 illegal: No proof kernel
4QRnK/1nBR4/NR3BrQ/1r1n3n/1R4n1/q7/PP1kB1n1/n3N1nq b - - 0 1 illegal: No proof kernel
b1q1QbRN/1Qnqpr2/1b3Qn1/1B5Q/3r2rP/2BB3K/5k1P/1qN1R3 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 c5 d4 cxd4 g3 h5 a4 a5 axb5 h4 gxh4 axb4 c4 Kf7 f4 Kf6 Kf2 g5 Kg3 d5 b6 g4 c5 b3 b7 d3 c6 d4 c7 d2 Bc4 d3 Nf3 b2 Bb5 Nc6 b8Q Bb7 c8B Ne5 Nc3 b1Q Re1 Ng6 Ne5 Rh7 Bb2 Ra4 Na2 Rf7 Bc3 Ba8 Bca6 Qc8 Qb7 Re4 Qf3 d1R Nc1 d2 Bd3 Rc4 Bb5 Ra4 Kg2 g3 Kh3 g2 Qh5 g1B Ra2 Bb6 Ra3 Rh7 Nf7+ Rd4 Nh8 Rf7 Re2 Rh1 Re1 d1Q Ra2 Rg1 Rg2 Kg7 Rg3 Nf6 Rg4 Ne8 f6+ Kg8 f5 Nc7 Rf4 Rg5 Rg4 Qa4 Rg3 Rgg4 Rgg1 Rh7 f7+ Kg7 Rg2 Kf6 Rgg1 Qc4 Rg3 Q4e6 Rg2 Qed7 Rgg1 Bh6 f8Q+ Rf7 Qe8 Bf8 Rg3 Re4 Rgg1 Ke5 Rg5 Kf4 Rg4+ Kf3 f6 Rh7 f7 Kf2 Bc2 Bh6 f8Q+ Rf7 Bcd3 Ref4 Qg7 Rfe4 Qge5 Bf8 Qe6 Ref4 Rg5 Rg4 Qd6 Ne5 Rg8 Ng6 Qf6+
r2Q1q2/1Q1P3Q/2qb2n1/1rp3b1/qRP1R1nN/RNK2R2/r7/2bB2Bk b - - 0 1 legal: proof: f4 b5 a4 f5 e4 d6 e5 dxe5 axb5 exf4 g4 f3 h3 g5 Ra5 Be6 Ra2 Bf7 Ra1 Bh5 gxf5 g4 Ra6 g3 Ra1 Bg4 hxg4 Qd4 Nh3 Qd5 Ng1 Qd8 b4 Kf7 c4 Kf6 d4 h5 Kd2 Kg5 d5 Kf4 b6 e5 b5 a5 b7 c5 b6 h4 f6 h3 d6 h2 g5 f2 g6 e4 g7 e3+ Kc2 g2 d7 Kg3 f7 a4 Na3 e2 Rb1 e1B Nf3 g1B Nh4 Bd2 Qe1 Ne7 g8R+ Bg5 Qe4 Ng6 Rb4 Nc6 b8Q+ Nce5 b7 Bd6 f8R Qa5 Qd8 Ng4 Nb5 a3 b8Q a2 Nd4 a1R Kc3 Ra2 Qbb7 Qa4 Be2 f1Q Nb3 B1e3 Bd1 Bef4 Bb2 Bc1 Rf2 Ra5 Re8 Rb5 Qb1 Rf8 Re4 Kh3 Rg1 h1Q Rf3+ Kh2 Rgg3 Qhg2 Qf6 Ra8 Qd8 Kh1 Qd3 Bcf4 Bc1 Qff2 Be3 Qff1 Bg1 Bc1 Qd4 Qff2 Q4h8 Qff1 Qh7 Qff2 Rd3 Qf8 Rgf3 Qe2 Ref4 Qe6 Re4 Qd5 Rde3 Qc6 Na5 Rh2 Re2 Rh3 Nb3 Rh2 Ra2 Rd2 Ra3 Re2 Qa6 Ra2 Qb7
1b1Nq3/k1p2b2/nBP2rR1/1nq1n2N/2rQ3R/3Pq2N/5R1B/r2Q2KR b - - 0 1 legal: proof: f4 e5 g4 h5 e4 hxg4 a4 b5 axb5 f5 exf5 d6 Bd3 d5 Be4 dxe4 fxe5 Bd6 Ra6 Bc5 Ra1 Bf8 Kf1 Kd7 h4 a5 b4 g5 c4 g3 d3 g4 f6 e3 b6 Kc6 b5+ Kb7 f7 a4 e6 a3 h5 a2 c5 Rh7 h6 Nf6 e7 Ra4 e8Q Be6 Bd2 Bb3 Nc3 Bg7 f8B Ne4 Nh3 g2+ Kg1 e2 Qe5 e1N Qd4 Bh8 Nd5 Nd6 Nf6 Na6 Nh5 Bf7 Ba5 Rc4 c6+ Kb8 b7 Qe8 Rh2 Rg7 h7 Rg6 Be7 Be5 h8N Rf6 Rb1 a1R Rh1 Qc8 Rb2 Qe8 Rf2 Bf4 Bf8 Be3 Bh6 Qf8 Bf4 Qe8 Qd5 Ka7 b8R Bd4 Bh2 Bb6 Qd4 Bc5 Rf5 Bb6 Rg5 Bc5 Rg6 Nf3+ Kf2 Ne5+ Kg1 Qe6 Rbg8 Qe8 b6+ Kb8 b7 Ka7 b8R Nb5 Rg5 Bb6 Rf5 Bc5 Kf2 Bb6 Rg6 g1Q+ Ke2 g3 Rf2 g2 Rd8 Bd5 Nf7 Be6 Rd5 Bc5 Nd8 Bf7 Qb3 Qc1 Qd1 g1Q Rd7 Qgg5 Kf1 Qge3 Kg1 Bb6 Rd5 Qa3 Rd6 Qc5 Rh6 Kb8 Rg6 Ba7 Rg4 Ka8 Rh4 Bb8 Re6 Ka7 Rd6 Rf3 Rg6 Rf6 Bb6+
1Rn4N/2RN1k2/1p2rBb1/1nP1P2b/5R1K/qB1Q1Q1n/2Q4r/nr1Q3n b - - 0 1 legal: proof: f4 c5 d4 f5 dxc5 e5 fxe5 a5 b4 axb4 g3 Be7 Bd2 Bd6 Bc1 Bf8 Kd2 h5 Na3 f4 Ke1 f3 Nc4 Be7 Ne3 Bg5 Ng4 Bf4 gxf4 hxg4 Kf2 g5 Kg3 d5 a4 b6 e4 d4 h4 f2 c4 b3 f5 b2 c6 b1B f6 d3 h5 d2 h6 Qe7 e6 Qa3+ Nf3 Rh7 c7 Ra5 e7 Nd7 Rh4 Nc5 Bb2 Kf7 e8R Nb3 c5 Rb5 a5 Ne7 a6 Bb7 a7 Nc8 Qc2 d1N a8Q Nc3 Qa4 Ba6 Ra2 Na1 Bd3 Bb7 Bc4+ Bd5 Bb3 f1N+ Kg2 g3 Kh3 g2 Rf4 g4+ Kh4 g1R Qd1 Kg6 f7 g3 f8Q g2 Qd3 Re7 h7 Re6 Qd6 Ng3 Ne5+ Kg7 Nd7 Nh1 Qf3 Bc4 Qdd1 Be2 Qa6 Rb4 Qad3 Rd4 Ref8 Nb5 Bc3 Kg6 Rd2 Rc4 Bf6 Rc2 Rh8 Kf7 e5 Re1 Rd8 g1N Rg8 Ncd6 Rb8 Nh3 c8Q Rg1 Qa6 Nc8 Qa4 Rb2 Qae4 Rg2 Q3c2 Rh2 Qfd3 Bg4 Qef3 Bh5 Rg2 Ba2 Rg8 Rb1 Rb7 Bg6 Rc7 Bh5 Ba4 Bd5 Bb3 Be4 Rh8 Beg6 Rd8 Ne7 Rb8 Nc8 h8N+
1b1R1Br1/R7/p2Q1RBn/4bR1P/1bq2N2/2BQP1nb/3K1kn1/1N4rr b - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 c4 d5 cxd5 e5 a4 exf4 g4 hxg4 axb5 Qf6 Ra4 Qg5 Ra1 Qd8 h4 Ke7 d4 Kf6 d6 Kf5 c6 Ke4 d5 f5 d7 g5 d6 g3 b6 a6 c7 f3 e3 f4 b7 f2+ Kd2 f3 Qe2 g2 Ra5 g4 Rd5 g3 Rd3 Nc6 b8Q Nh6 Rb3 Nb4 Qeb5 Nd3 Rb2 Ne1 Be2 f1R Nh3 g1B Nf4 f2 Bd3+ Kf3 Bg6 g2 Qd3 Bh2 Rb6 g1B Bb2 Ng2 Bc3 Qf6 d8R Qf7 d7 Bb4 Rb7 Qc4 Ra7 Bg3 Qb6 B1h2 Qbd6 Rg1 Rf8 Rg8 d8B Bh3 c8R Rb8 h5 f1N+ Kc2 Rb7 Rf5 Kf2 Be7 Rb5 Rd8 Rd5 Qe4 Rd1 Bf8 Re1 Qed3 Rd1 Ne6+ Bf4 Rf6 Ng3 Rf5 Rc1+ Kd2 Rce1 Rc5 Be5 Nf4 Bd4 Rg5 Be5 Rf5 Rgf1 Qc5 Bf6 Re5 Ngf5 Nd5 Kf3 Re6 Bb8 Qd6 Be5 Rg1 Ng3 Rh1 Bg4 Rh4 Kf2 Rf6+ Bf5 Rg4 Rh1 Rg5 Reg1 Nf4 Bh3 Rgf5
B2B3R/NK2P2P/2R3br/1Q1Rb2r/2p3rq/2nBBnQb/1k6/N3b2n b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 e5 a4 exf4 c4 d5 cxd5 b5 axb5 Rh6 Bh3 Rh7 Bf1 Rh8 Kf2 Ke7 h4 Kf6 d4 c5 e4 g5 b6 c4 h5 g3+ Kf3 g2 a6 Nd7 d6 Rh6 a7 Ne7 b7 Bg7 b8Q Nd5 Qc7 Nc3 d5 Ke5 Qa4 Kd4 e5 f5 e6 Be5 Nd2 Qf6 e7 g4+ Kf2 f3 Qb5 f4 Ne2+ Kd3 Ra6 Kc2 Nb3 g1R Be3 Kb2 Ned4 Rb8 a8B g3+ Ke1 f2+ Kd2 g2 Nc6 f3 Bd3 f1B Na7 f2 Rc6 Qh4 Na1+ Ka3 Rh3 Be2 Rh1 f1N+ Kc2 Rb6 Qb8 Rh7 h6 Bh5 Rh3 Ng3 Rh2 Nc5 d7 Ne6 d8B Bg6 d6 Ng5 d7 Nh1 Rh3 Nf3 Rh2 Bd4 Qg3 Be5 Rh3 Rb1 Rh2 g1B Rd2 Bf2 Rd1 Rf7 h7 Rf5 Rd2 Rg1 Rd1 Ne2 Rd2 Rh5 Rd1 Ned4+ Kc3 Ka2 Kb4 Be1+ Kc5 Ne2 Qf4 Rg4 Qg3 Bf6+ Kd6 Nc3 Kc7 Bh8 Be2 Ra6 Rd5 Bf6 Kb8 Bd4 Bd3 Be5+ Bc7 Ka3 d8R Ka2 Rh8 Bd7 Qa5+ Kb2 Kb7 Rgg5 Nb3 Bf7 Rf6 Bh3 Bd8 Rg4 Na1 Be8 Rc6 Bf7 Rc7 Rah6 Rc6 Bg6 Qb5+
2n3rn/r1NQ3q/1B2r2N/1K1P1QR1/r1R1b2B/1p1R2B1/B2P3b/3q2kr b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Kf4 f6 c5 g5 h5 f3 Kg3 b6 Kf2 f4 e5 f7 e4 b7 h3 f5 b3 f6 h2 g6 h4 g7 h3 Nc3 e3 Ra4 e2 Nb5 e1R Ba3 Re6 Qg4 Nd7 b8B Ne7 g8R Ra7 Nc7 Ne5+ Kb5 c4 Ne2 c3 Rc4 c2 Nd4 c1R Bc5 Rca1 Rg5 N5g6 Bb6 Rg8 Bd3 Nh8 Bb1 R1a4 Ba2 Bh6 Rg1 h1Q f8B h2 Rg3 Qd1 f7 h1R Rd3 Kf1 Nf5 Qd7+ Rc6 Bg7 Nh6 Be5 Bg7 Bd6 Bf6 Bh2 f8Q Ba6+ Kc5 Nc8 Qf7 Bg3 Qf5+ Kg1 Qe8 Qh7 Qd8 Rd4 Qd7 Bc4 Kb4 Bb5+ Rc4 Ba6 Rh5 Bh2 Bh4 Bb5 Qd8 Be8 Qd7 Bf7 Kb5 Bg6 Qh3 Be4 Qf5 Qe2 Ne8 Qd1 Bbg3 Re7 Rg5 Re6 Rc5 Rc4 Nc7 Rca4 Rc4+
2N3r1/1Q2b1Q1/Rr2P1N1/kB1N4/2n2rPQ/qp1Q4/B3KRr1/1b1r1n1q b - - 0 1 illegal: No possible last move, all moves rejected
R3r1k1/3NPr2/1NQ1n2K/rqBP3R/B5b1/p1n1B3/R3b1rQ/2qR3r b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 Kf8 Kd2 c5 Ke3 h5 Kf4 a5 e4 f5 b4 c4 d6 a4 d7 g2 g6 g3 g7+ Kf7 e5 h4 b6 a3 b5 c3 b7 c2 b6 h3 Bb5 h2 Nd2 Ra7 Ngf3 g1R Nc4 g2 Ra2 Ne7 Kg5 f4 g8R Nbc6 b8B Ra5 b7 Rf1 Ba4 Qb6 d8R Qb5 Ba7 Nd5 b8Q Bg4 Bc5 g1R Be3 c1Q Qc2 Rg2 Nb6 Nc3 d5 Rff2 Rd1 h1R Qd6 Rff1 Ra8 Nd4 Qc6 Rff2 Rgb8 Re8 e6+ Kg8 Ne5 f3 e7 Ne6+ Kg6 Rff1 Ned7 f2 Qe2 Re1 Rd8 f1B Qf2 Re2 Qh4 Rgf2 Qh2 Rf7 Kh6 Rg2 Qc7 Bfe2 Qc6 Kh8 Rdb8 Rg8 Rf8 Rf3 Rf6 Re8 Rf5 Kg8 Re5 Rf7 Rh5
R2B3N/rqPR3Q/B1r1n2r/p1Q1R1N1/k1n2r2/1Q1P2bQ/7q/2Kbr3 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 h5 g4 Bb7 gxh5 Bc8 c4 d6 Qg4 d5 axb5 cxb4 c5 Ba6 Qh4 Bc8 Qc4 dxc4 Kd1 Kd7 f4 g5 h4 e5 f6 a5 f5 g4 f7 g3 c6+ Kc7 h6 Kb6 h5 b3 c7 g2 f6 e4 h7 e3 h6 b2 Nf3 g1Q Nc3 b1R Ng5 Bb4 f8Q Bd6 f7 Na6 Ne2 c3 Rh5 Nf6 Nf4 Ne4 Ng6 e2+ Kc2 Kc5 b6 Kb4 b7 e1R b8Q+ Qb6 Ra2 Nac5 Ba6 Qb7 d3 Ne6 Ra4+ Kc5 Qg8 Bg3 f8Q+ Qd6 Rd4 Rb4 Qf5+ Qe5 Rd7 Nd6 Qa7+ Kc6 Qh3 Nc4 Ba3 Ra4 Be7 Rb4 Qe3 Ra7 Bd8 Ra4 Qc1 Kc5 Qe3+ Kb4 Qf7 Ka3 Qc5+ Rb4 Qg8 Ka4 Qf7 Rg8 Nh8 Rg6 Rh4 Rf6 Re4 Rf4 Qg8 Rb6 Re3 Qd6 Re5 Rc6 Qf7 Rh1 Qg8 Rh2+ Kc1 c2 Qf5 Rhh4 Qh3 Rh5 Ng6 Rhh4 h8R Rh5 h7 Rh6 Rf5 Qe5 Qf7 Qe2 Re5 Qh2 Re8 Ra8 h8Q Ra7 Rd6 Bd7 Qhh7 Bc8 Qfg8 Bd7 Rf8 Be8 Nh8 Bh5 Re8 Bd1 Rd7 Nb2 Bf6 Nf8 Qgd5 Ne6 Ra8 Be2 Kd2 c1R Be7 Re1 Bd8 Bd1+ Kc1 Qb8 Qd4+ Nc4 Qc3 Qb7 Qb3+
kr1N1n1q/1B1Qr3/B1n2Q2/3N3r/5PP1/2pq1qR1/1b1NBq2/2NKbR2 b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 h4 gxh4 c4 Bg7 a4 Ne7 axb5 Bb7 b6 Bf8 b5 Bc8 b7 Ng8 e4 Ke7 e6 d6 e5 f6 b6 Bg7 Bf4 Bd7 Bg3 Bb5 cxb5 Bf8 Bh2 Ke8 e7 Kf7 e6+ Kg6 Be5 fxe5 Ke2 Kg5 Ke1 Kf6 e8B Ke7 g4 a5 f4 c5 Ra3 h5 Bc4 a4 Ra2 a3 Bb3 h3 Bc4 h2 Rg2 h4 Ne2 h3 Nd4 a2 Bf7 a1B Qa4 e4 Rf2 d5 Nc3 Kd6 e7 e3 e8B e2 Be6 Rh7 Nf3 d4 Qa7 d3 Rhf1 h1Q Bc8 h2 Na2 Nf6 Nc1 Bb2 Rg2 Nfd7 Rg3 Be7 Bg6 Qh8 Bf5 Nc6 b8N Na5 Bb7 Nf8 Nd7 Re8 Ba6 Nc6 b7 Kc7 Nf6 d2+ Kf2 d1Q Bcd3 Nd8 b6+ Kc6 b8Q c4 b7 Bb4 Qe5 Rhe7 Ke3 e1Q+ Be2 Qg2 Nd5 h1R Be6 Rh5 Qf6 Qc2 Rf2 Qeh1 Rf1 Be1 b8N+ Kd6 Nd2 c3 Kd4 Qf2+ Kc4 Qd3+ Kb3 Qhf3 Nc6 Nf7 Qb7 Rb8 Nd8 Ne5 Bc8+ Kc5 Qe6 Nc6 Qf6 Qdd4 Kc2 Qde3 Qg5 Qd3+ Kd1 Kd6 Qd7+ Kc5 Nc7+ Kb6 Qf6 Ka7 Nd5+ Ka8 Bcb7+
1rQ5/2K3N1/b1B2nkN/Q3NR1N/1P3qbp/2b1B1P1/3Rrb2/1qn1Bn2 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 b4 a3 Nc6 axb4 Nb8 Bc4 a5 Bf1 f5 exf5 a4 h4 g5 b3 axb3 Ra7 gxh4 Ra5 Kd7 Ra1 Ke8 Ke2 Kf7 Kf3 e5 Ke4 c5 f4 h5 d4 b2 f6 h3 f5 h2 d6 c4 Kd5 e4 d7 c3 Ra2 e3 Na3 b1N Bb5 e2 Be3 e1B Qa4 c2 Nc4 c1Q Nh3 Qa3 Nf4 Qb6 d8B Nd7 Qa5 Qc3 Ne5+ Ke8 Rd2 Ba6 Rf1 h1B Bc6 Bg7 Kd6 Rb8 d5 Qbd4 Kc7 Qc2 d6 Bf2 f7+ Kf8 g3 h4 Bg5 Nc5 d7 Nf6 d8N Nd3 Nh5 Bf3 Bh6 Ke7 f8N Nc1 Ndf7 Bg4 Ne6 Qf4 Bg5 Rhe8 Nh6 Bh8 Neg7 Qb2 Rc2 Kf8 Bd2 Qa1 Be1 Nd2 Ra2 Qb1 Rc2 Ng8 f6 Re6 f7 Nf6 Rg1 Nf1 Rd2 Qd4 Be3 Qf4 Rd7 Rd6 Rg2 Rd2 Rd5 Re2 Rd2 Bg1 Rf2 Ke7 Rf3 Bf2 Ne8 Ke6 f8Q Bg7 Ng8 Kf5 Nh6+ Kg5 Qfc5 Bh8 Neg7 Re8 Qf8 Nd7 Ngf5 Rb8 Qc8 Bg7 Bb6 Qd4 Nd3 Kg6 Rf4 Qc4 Be3 Bc3 Nfg7 Nf6 Rf5 Qf4+ Ne5+
2KQn1B1/1B2r2r/q3rqN1/2PR1p1b/4b2N/P1B1kR1N/5r2/bN1Q3n b - - 0 1 legal: proof: d4 a5 g4 d5 f4 h5 gxh5 c5 b4 e5 fxe5 axb4 e4 cxd4 exd5 Bh3 Bd2 Bg4 Bc1 Bc8 Ke2 Ke7 Kd3 g5 Kc4 b5+ Kc5 f5 c4 g4 h4 b3 e6 Kf6+ e7 Ke5 d6 Ke4 e8B b2 a3 g3 h6 d3 h7 b4 h5 b3 h6 d2 Qh5 d1B Bd7 g2 Qh2 Nf6 Qh5 Nc6 Bg5 Bb7 Bc8 Nb4 Bd2 Bg7 d7 Ne8 Bc3 Ra7 Nh3 Qf6 d8Q g1R Be6 Bc6 Kb6 Ke3 c5 Rg2 Bg8 Re7 Ba6 Nd3 Bb7 Rf2 Rf1 Be4+ Ka7 Qa6+ Kb8 Bf6 Qg4 Be2 Qg1 Bh5 Kc8 Bd4 Qg4 Bg7 Qd1 Qf6 Nd2 b1R Ra2 Rb2 Nb1 Rbe2 Rc2 b2 Rd2 Rh2 Rf4 Nf2 Rd4 Nh1 Rd5 Rhf2 Bf7 Rf8 Bg8 Rff7 h8N Qa6 h7 Be5 Nd2 b1Q Ng6 Qb2 h8N Rh7 Nb1 Qbb6 Nh4 Qf6 N8g6 Bd4 Ba5 Ba1 Bc3 Rb2 Qf1 Rb6 Qd1 Rbe6 Rf3+
qN1k1r1B/b2N1n1q/1r1QR1q1/rP1RB3/Q2p1P2/1q1bnK2/3B2B1/4Q3 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Ke2 g5 h4 d5 c4 e5 f4 e4 f6 e3 c5 g4 h6 g3 h5 d3+ Kf3 d2 h7 g2 c6 b3 c7 d4 h6 e2 Ra6 e1R Rh5 b2 Re6+ Ne7 Rd5 Ra5 Qa4 Nc6 Na3 b1Q Nc2 Re4 Nb4 d1Q+ Be2 Re5 Na6 Qdb3+ Bd3 Bb7 Bd2 Qa8 c8Q+ Nd8 Qc1 Nf7 Nb8 Rg5 Qc3 Rg6 Bf1 Rhg8 h8B Q1c2 Rc6 Nf5 h7 Ne3 Re6+ Be7 Bg7 Rf8 h8B Rh6 Qca1 Qh7 Qe1 Bc6 Ne2 g1Q Nc1 Qg5 Nd3 Qgg6 Bg2 Bd7 Ne5 Kd8 Qe2 Bc5 Qe1 Nd6 f7 Ba7 Re7 Bf5 Re6 Bd3 Ned7 Re8 f8Q Nf7 Qfb4 Rf8 Be5 Qf5 Re7 Rb6 Re6 Qfg6 Qd6
2Rqn3/1B1B1RR1/3QQ3/P1k1q3/b4R2/1p3b1K/B1rqrrP1/r1NNn3 b - - 0 1 illegal: No possible last move
R3QQ2/1Q1BrR1N/3n1b1P/5kN1/1bPB1rr1/q3r3/3B1p1K/q3nqB1 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 b3 a5 b6 h5 gxh5 a4 Ba3 Bb7 Bc1 a3 Ra2 Bc6 Ra1 Ba4 bxa4 Ra7 Nf3 Ra5 Ng1 Ra8 Kf2 Ke7 Kg2 Ke6 e4 d5 h4 g5 c4 f5 a5 a2 e5 f3+ Kh2 f4 h6 d3 h5 d2 b7 d4 a6 f2 h7 f3 h6 d3 a7 g4 Nc3 g3+ Kh3 g2 Qb3 d1Q Na4 d2 Qa3 Qa5 Kg3 Kf5 e6 Nf6 e7 Ne4+ Kh2 Nd7 e8Q Ndc5 b8B Nd6 Nh3 g1R Ng5 Nd3 Nc5 Rg4 Nd7 Ne1 Bh3 f1Q Nf6 f2 Rg1 Rg8 h8B Rg7 Nfh7 Re7 Bd4 Qda4 Qb3 d1R Bd2 Qa3 Qb7 Rc1 Rg3 Rc3 Bc7 Rd8 a8Q Rce3 Qac8+ Rdd7 Qcd8 R7e4 Rf3+ Rf4 Qde7 Bg7 Q7f8+ Bf6 Rb1 a1B Rc1 Bc3 Ra1 Q3b4 Ra3 Qe5 Ra8 Re7 Rd8 Qa3 Qg8 Nf7 Qg7 Bb4 Rg3 Rff3 Qgg8 Bg7 Ra8 Kf4 Bdb6 Bd6 Qgf8 Qea1 Bd4 Bge5 Bb8 Bb4 Bd6 Qfd3 Kh1 Rh4 Ne4 Qe2 Rg7 Qed3 Neg5 Qf1+ Kh2 Rg4 Bb8 Rg1 Bd7 Rg4 Bd6 Qfd3 Kh1 Qe2 Ba4 Kf5 Bb5 Bf6 Bh2 Qed3 Bg1 Nd6 Kh2 Rff4 Rf7 Qf1 Bd7+
n1qQR2B/3R2rq/6pN/2k3bP/N6N/3bn1K1/1q1rQBP1/q2N1Rr1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 Be2 Nh6 Bg4 Ng8 Bh5+ Kd7 Bg6 hxg6 Qf3 Ke8 Qg4 Na6 Qd1 Nb8 Kf2 Kd7 d4 Kd6 b4 c5 h4 a5 b6 e5 h5 e4 f6 a4 b7 a3 f7 c4 b5 c3 b6 a2 Qe2 f3 Kg3 c2 Bb2 c1Q Nc3 f2 Nd1 f1R Nf3 e3 Nh4 Na6 b8B+ Nc7 b7 Nf6 Ba7 Bf5 b8N Rh7 Na6 Bd3 Nc5 Qc8 Na4 Bh6 f8R Rg1 Re8 Bg5 Rb1 a1Q Bb6 Re1 Rf1 Ng4 Bc3 Rf7 Rb2 Rb8 Rd2 Na8 Ba7 Rb2 Bc5+ Kd7 d6 Kc6 d7 Rg7 d8Q Rc2 Ba7 Qcb2 d5+ Kb5 d6 Kc4 Qf2 e2 d7 Ne3 Bb6 Rg8 Bh8 Rg7 Qc7+ Kb5 d8N Kb4 Nf7 Kb5 Rh1 Rg1 Qd8 e1Q Nh6 Qf1 Qe1 Qf7 Qe2 Qg8 Bc5 Qh7 Bb6 Bc4 Rd4 Bd3 Rd7 Rd2 Bd4 Re1 Rf1 Kb4 Rff8 Rg1 Ba7 Ng4 Bf2 Ne3 Be1 Kb5 Rf1 Kc6 Bf2 Kb5 Nb6 Kc5 Na4+
2rbR3/r1N4K/1P2N2B/qQ2B1bP/1N5k/rnpR3n/1R3qb1/1R1Q2b1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Ke2 Kf7 Kd3 a5 Ke4 c5 h4 e5 d4 c4 b4 f3 f6 Kg6 f7 Kh5 g6 a4 g7 f2 b6 f1Q b5 a3 d6 c3 b7 a2 d7 Nh6 g8Q Qh3 b6 Ra7 d5 Qf1 d6 Qf2 Ne2 g3 Na3 g2 Rb1 a1R Rh2 g1B Nd4+ Ng4 Bh6 Be7 f8R Bg5 Ne6 Nc6 b8B Nd4 Re8 Nb3 Nb5 R1a3 Nbc7 Qe7 d8N Bb7+ Nc6 Qef6 d7 Q6f5+ Kd5 e4+ Kd6 e3 d8R e2 Nb4 e1B Qf8 Be3 Ke7 Qa5 Rd3 Bg2 Qf5+ Bg5+ Kf7 Bd2 Kg7 Bc1 Qe4 Bd8 Qe5+ Bcg5 Qee2 Qf3 Qe5 Nf2 Qb5 Rg8+ Kh7 Nh3 Re3 Kg4 h5 Kh4 Rd3 Qf2 Rh1 Bh2 Re1 Bg1 Re2 Rf8 Reb2 Bdf6 Re7 Rc8 Re8 Be7 Na8 Bd8+ Bc7 Ra6 Be5 Ra7+ Nac7
2Qb1b1N/RNr5/PN2R2R/2B1k2p/1b3bn1/3P2n1/1rQB4/qq2rRK1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 h4 g5 hxg5 f5 d4 Bd7 b3 Bb5 b4 Bd3 exd3 axb4 Be2 Nf6 Bf3 Ng8 Be4 fxe4 Kf1 Kf7 a4 e5 g4 c5 f4 b5 f5 h5 a5 c4 f6 c3 d6 Ke6 d7 b3 g6 b2 g5 c2 f7 b4 g7 b3 g6 e3 Bd2 c1B Na3 b1R Nf3 b2 Nc4 e2+ Kg1 e1B Nh4 e4 Qc2 e3 Nb6 e2 d5+ Ke5 d6 Qf6 d8R Ne7 g8Q Ra7 g7 Rc7 d7 Nbc6 Re8 Bg3 d8N e1B Nb7 Bf4 Ra3 Ra1 Ra4 b1Q Ra2 Rh6 Qh8 Ba3 g8R Bb4 Rg6 Rh7 Ra4 Ra2 Rh6 Rb2 Qg8 Rh8 Qg4 Rh7 Qc8 Qh8 Rd8 Nf5 Rdd6 Ng3 Rdg6 Bbe7 Ra3 Bd8 Re6+ Kd4 Ra1 Ne5 Ng6 Ng4 Ra3 Qf6 Nh8 Rg7 a6 Qe5 Rc3 Qa5 Rcc6 Qaa1 Rh7 Rg5 Reh6 Re5 Rce6 Bb4 f8B Re4 Reg6 Ke5 Bc5 Ba3 Rh2 Re3 Rf2 Re4 Rf1 Re3 Bc1 Beb4 Bd2 Re1 Na5 Rc6 Ra7 Rc7 Rc6 Bfg5 Nb7 Bf4 Bf2 Bf8 Bc5 Bb4 Rce6+
1b1Q2KN/knN2n1p/Rqq1BB2/Rrb1Q2P/6P1/3r1r2/1b2B1B1/3b2N1 b - - 0 1 illegal: No possible last move
B1Q1RN2/BQ1N1p2/1q4Q1/2PQ3n/q1PK4/2rnB2R/rrb5/k1b2rb1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 d4 c5 dxc5 e5 f4 exf4 a4 axb4 axb5 Ra3 Nd2 Ra4 Nb1 Ra8 Kf2 Ke7 c4 Kf6 h4 Ke5 e4 d5 b6 g5 h6 d4 b7 d3 h7 Kd4 h5 d2 h6 g4 e5 b3 e6 f3 e7 b2 e8Q Na6 b8B Qb6 Bg2 Qa7 Qe7 Bf5 Qb7 Qb6 Na3 Kc3 Ke3 b1R Rh3 f2 Ba7 f1R Nf3 g3 Nc2 Nb4 Ne5 Nf6 Nd7 Nh5 Nd4 Nd3 Ne6 Rb2 Qdf3 d1Q Qfd5 Bg7 Nef8 Qa4 Be4 Rg8 h8Q g2 h7 Kc2 Rb1 Bh6+ Kd4 g1B+ Be3 Rg3 Qg8 Kb3 h8Q Ka2 Re1 Bg5 Re2 Ka1 Qg6 Rgf3 Bf2 Bc1 Be3 R3f2 Qdc6 Kb1 Bb8 Qaa5 Qe5 Ka1 Qbc8 Ne1 Bh6 Rf3+ Re3 Ra6 Ba7 Qab5 Q6c7 Raa2 Ba8 Bc2 Q7b7 Qa4 Qed5 Rg3 Ke5 Rgf3 Re4 Re3 Kd4 Rc3+ Be3 Nd3 Re8
1NR5/1n2P1K1/1N3Bp1/1R6/2Rq3R/Qn2rbrb/N1Pq1bk1/1B2Qr1r b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 e4 d5 h6 f5 a6 g6 h7 d3 b6 d4 b7 d2 a7 f3 Nc3 f4 Nge2 f2 Ra5 f3 Nd5 d3 Qe1 d1R Bb2 d2 Rb5 Nf6 Nc1 Ne8 Nb6 Bh3 Na2 Bc5 Bc4 Na6 b8N Nd6 Rg1 Qd7 Kf6 Re8 e5 Nb7 e6 Qd4+ Kf7 Bg2 h8R+ Kg4 h4 Kh3 h5 f1B h6 f2 h7 Bf3 Rh1+ Kg2 Rh4 Rc1 Rg8 d1Q h8R Q1d2 Ba1 Rb1 Rf4 Rb3 Rhh4 Re3 e7 Rc8 Rg7 Rh8 Rg8 Rh5 Rh8 Rg5 Rc8 Rg3 N6d7 Bb6 Bd5 Nac5 Kg8 Qf6 Rc4 Nb3 Bd4 Qf4 Bf6 Qfd4 Kg7 Bc5 Nc6 Rb8 a8Q Bb6 Qa3 Ba7 Rc7 Rh8 Ncb8 Bc5 Nb6 Rh5 Rf4 Rh1 Rh4 Be2 Bc6 f1R Rc8 Bd3 Bd5 Bf5 Bf7 Bh3 Rg4 Na1 Nc1 Rb3 Ra4 Qd7 Rh4 Bf2 Rag4 Rd3 Ba2 Nb3 Bb1 Re3 Rgc4 Q7d4 Na2
6K1/n2PR2Q/QP4nr/6bn/rkBbNN1p/2B1B3/4NR2/2nbqb1B b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 h5 Kg6 e5 Kf7 e4 f4 h3 g4 h2 d4+ Kd6 b6 c5 g5 e3 f6 b3 g6 b2 g7 h4 f5 c4 Qh5 e2 Be3 e1B Ra7 c3 Re7 c2 Nc3 b1B Bg2 c1N Qh7 Ra2 Nge2 Rb2 Rf1 h1N Rf2 Ng3 Bh1 Bb7 Re5 Bd2 Ne4+ Kd7 d6 Kc6 d7 Rb4 d5+ Kb5 Re7 Bd3 d6 Qc8 d8Q Nh5 d7 Ra4 Qe8 Qc3 Qc8 Nc6 Qa8 Kb4 Qa6 Ra3 Re6 Nge7 g8B Ng6 Re8 Bc5 Re7 Nhf4 Kg7 Bb5 Bc4 Ra4 Kf7 Qa1 Kg7 Qb1 f7 Bd4+ f6 Na7 f8N Nh5+ Kf7 Qa1 Ne6 Ba8 N6f4 Qb1 Qg8 Rh6 Qh7 Qa1 Kg8 Bac6 Ng5 Bf3 f7 Qc3 f8B Bg4 Ng1 Bd1 Ne4 Qa1 Bg7 Qb1 Be6 Bf1 Ba2 Qd3 Bf6 Qe2 Bc4 Qe1 Bh8 Bf6 Bg7 Bg5 Be5 Bc3 Nge2 Bd4 Bg7 Bc5 Ba1 Bd4 Bc3+
qN5n/b4b2/3B1NRB/2kP1Q1n/b7/1brbKP1p/Q1Q4B/1n1BR2q b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 h4 gxh4 g3 d5 cxd5 e4 Qa4 e3 Kd1 exf2 Kc2 Nh6 Kc3 Bd6 Qd1 Bf8 Kc2 Ng8 Nc3 f5 Bg2 f1B Nh3 a5 Be4 f4 Ng1 f3 Nb1 f2 Bd3 Ra6 Rh2 Rf6 Rh1 Rf3 exf3 Bfh3 Na3 Bg2 Nb1 Bf1 b4 Kd7 d6 h5 b6 Kc6 d7 h3 g4 h2 g5 a4 b7 h4 g6 a3 g7 a2 b5+ Kc5 b6 h3 Kc3 Ne7 g8Q Ng6 Bb5 Bc4 d3 f1B Kd2 Bf7 Ne2 c6 Rg1 h1B Rg4 Bhg2 Ng1 Rh6 Ba4 Nh8 Ne2 Qe8 d8Q Bce6 Rb4 Bb3 Nbc3 Nd7 b8B Nf6 b7 Nh5 Qc2 Bg7 Rf4 Bd4 Qc8 Bg1 Rb1 a1Q Nd4 Re6 Rg4 Re3 Qe6 Qf8 Bg3 Qa8 b8B Be2 Bgf4 Bd1 Rg6 Bf1 Bh2 Bf2 Qb2 Bfe2 Nd5 Bg1 Qf5 Bf1 Bb5 Ba4 Bbf4 Bdb3 Qc2+ Bc4 Qd8 Bf2 Qd1 Bcb3 Nb6+ Kb4 Nd7 c5 Nf6 c4 Qf8+ Ka5 Qa3 Kb6 Nc6 Be2 d4 Bg1 d5 c3+ Ke1 c2 Kd2 Rc3 Qa2 Bf2 Bd3 Bd4 Be4 Kb5 Nb8 Ba7 Bfg3 Kc5 Bc7 Ba6 Bd3 Bac4 Ke2 Bcb5 Bh6 B5c4 Kd2 Bcb5 Be2 Bd3 Rb2 Qb1 Ke3 Qc1+ Qd2 Qh1 Rb1 c1N Bf1 Ne2 Qdc2 Rc4 Re1 Nc3 Be2 Nb1 Bd1 Rc3 Bcd6+
3R1Q2/1N4r1/2Pr2k1/QP2b1rR/2pB1NnK/Q6Q/nq1q4/nB1n1Bn1 b - - 0 1 legal: proof: e4 d5 h4 c5 c4 f5 exf5 g5 a3 gxh4 a4 b5 axb5 dxc4 Nh3 Bb7 Ng1 Bc6 bxc6 Qc7 Qg4 Qa5 Qd1 Qd8 d4 Kf7 b4 e5 g4 h5 f4 a5 Kf2 e4 f6 h3 Kg3 e3 d5 c3 f5 e2 b5 e1N d6 a4 d7 c4 g5 c2 Qe2 h2 Bd2 c1Q Nh3 a3 Qg2 a2 Nf4 Rh7 Nc3 Qb2 Nd3 Rg7 Be3 Nh6 Ne4 Nf3 Rd1 a1N Qh3 Ng4 Bd4 Ng1 Nec5 Bd6+ Kh4 Be5 Nb7 Na6 Rd2 Qa5 d8Q Nb4 Qb6 Qaa2 Qa5 Rd8 Rd1 Rd6 g6+ Kg8 f7+ Kf8 Kg5 h4 Kh5 Ke7 f6+ Ke6 f8Q Kf5 f7 Kf6 Qg3 h3 Kh4 Qd2 Qe3 Qab2 Qfa8 Na2 f8Q+ Rf7 g7 Kg6 g8B Rg7 Q8a6 Ne2 Rg1 h1R Qa3 Rh2 Rh1 Rg2 Q6a5 h2 Qh3 Ng1 Bd5 Rf2 Be4+ Rf5 Nb4 Rf7 Bc2 Rg7 Nd3 Rg5 Bb1 Ne2 Rg1 h1N Rg2 Ng1 Re2 Bh2 Re5 Nhf2 Rd5 Rf6 Rd8 Rd6 Re1 Nd1 Re2 Rgd5 Re5 Bf4 Rh5 Rg5 Bc3 Bh2 Bd4 Be5 Nf4#
B5q1/b1pnr2q/Q1N3RN/3P1q2/k3b3/3P1n1B/3Nq1Rq/1KN1n1QR b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 b3 a5 Ba3 h6 Be7 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 h4 Kd7 e4 a4 b6 a3 b7 g4 b4 g5 f6 g3 h5 g4 f7 f2+ Ke2 a2 Kd3 g2 Kc2 g3 b5 f3 b6 Qe7 h6 Nc6 b8R Ne5 h7 Bb7 Ne2 g1Q Nc1 Qh2 Bh3+ Kd6 Qe1 Kc5 Qg1 Kb4 Rd8 f1Q Rd6 f2 Rg6 Bc6 b7 g2 b8N Nf3 Kb2 Ba8 Nc6+ Ka4 Kc2 Bg7 f8Q Qe2 Qc8 f1Q Qb7 Bc3 Qa6+ Ba5 Kb2 Nf6 Kc2 Rg8 h8N Qh7 Nf7 Nd7 Nh6 Rg7 Kb2 Re7 Kc2 Bb7 e5 Bc8 e6 Ne1+ Kb2 Qf5 Na3 Qg8 Nc4 Qh7 Rb1 a1N Ka2 Nb3 Rb2 Nd4 d3 Ndf3 Rc2 Qh5 Nd2 Qf5 Qb7 Bc3 Kb1 Bd4 Rb2 Ba7 Rc2 Rg7 e7 Rf7 e8B Re7 Qe3 g1Q Qg5 Qd4 Qg1 Qdh8 Qbb6 Q8g8 Qb7 Nf8 Qbb6 Be6 Bd7 Bf7 Bc8 Be6 Bb7 Nd7 Ba8 Bf7 Re6 Bg6 Rb2 Qh5 Rc2 Bf5 Rg6 Be4 Qb7 Qf5 Rb2 Bb6 Qa6+ Ba5 Ne5 Qef2 Nf1 Qe3 Rbg2 Qe2 Qb7 Bc3 Nc6 Bd4 Nd2 Ba7 Qa6#
Q1q5/NPPn1nn1/2K3nk/3R1q2/1r2rQQ1/pb2Q2B/4B1B1/R3nrN1 b - - 0 1 illegal: No possible last move, all moves rejected
1BR1r3/1q3nN1/r4R2/2bRQ1Q1/k3n1pQ/Pr1Q2Pr/2q2BKN/2qn4 b - - 0 1 legal: proof: c4 f5 e4 a5 exf5 d5 a3 a4 h3 g5 cxd5 Be6 h4 Bf7 Bc4 Bh5 Ba2 Bg6 b3 axb3 h5 bxa2 hxg6 Bg7 Rh3 Bh6 Rh1 Bf8 Kf1 Kd7 f4 e5 d4 b5 g7 c5 f6 h5 g3 c4 f5 e4 f7 c3 f6 b4 d6 Kc6 d7 Kb5 d5 e3 d6 h4 Qh5 e2+ Kf2 e1R Ne2 c2 Nf4 b3 Ne6 h3 Be3 c1Q Nd2 b2 Nf3 b1N Nh2 Ra6 Rf1 Qdc7 d8Q Nh6 g8Q Nd7 Ng7 Nc5 d7 g4 Qe5 Nc3 Qde7 Qb7 d8Q Ka4 Qd3 N5e4+ Kg1 Qbb1 Bf2 Qbc2 Qed8 Bb4 f8R Bc5 f7 Nd1 Qh4 Re2 Rb1 a1R Rb5 Rb1 Rc8 Rb3 f8B Nf7 Bd6 Rh5 Bb8 Re3 Nf3 h2+ Kg2 Rhh6 Qh7 Rh5 Qhg5 Rh3 Qhh4 Be7 Rd5 Bc5 Rg1 h1Q+ Kf1 Re2 Nh2 Qf3 Rg2 Qf6 Rg1 Qe7 Kg2 Qb7 Rf1 Nd2 Qb2 Re8 Qbe5 Ne4 Re1 Rc3 Re3 Rb3 Rf3 Rab6 Rf5 Ra6 Rf6
Qr1Bb2n/N2B1N2/2B3Qb/bp6/R5rq/1r2qBR1/2q2bPP/k4N1K b - - 0 1 legal: proof: c4 d5 e4 dxc4 f4 g5 fxg5 a5 b4 axb4 d4 h5 Qxh5 Rh7 d5 Nd7 d6 Nb6 Qg6 Rh8 Qh7 Nd5 exd5 Bh3 Be2 Bd7 Bf1 Bc8 Kf2 Kd7 a4 e5 g6 c5 g7 f5 a5 b5 a6 e4 a7 b3 Bd3 b2 Ra5 e3+ Kg3 c3 Kh3 f4 Bg6 f3 Ra2 c4 Ra4 e2 Nd2 b1R Qh5 e1B Ra1 f2 Ra4 f1Q Ne2 c2 Be4 c3 Bf3 Ne7 g8B Rb3 Nd4 Qg1 Nc6 Rb8 a8B Bf2 Na7 Bh6 Nf1 Ng6 Bg5 c1B Bf7 c2 Be6+ Ke8 Bf6 Bcd2 Bd7+ Kf7 Bc6 c1Q Rg4 Qb2 Rg3 Rg8 Qg4 Nh8 Qg6+ Kf8 Bg5 Ba5 Bh4 Qc2 Bg5 Qb6 Bd8 Qbc5 Be6 Bb7 d7 Q5c4 d6 Qa4 Bf6 Bc8 d8N Bd7 Nf7 Be8 d7 Qb4 d8Q Qe7 Qe4 Rg4 Bed7 Kg8 Bg5 Kg7 Qc8 Qb4 Bd8 Qe7 Qh7+ Kf6 Qg8 Bc5 Qb7 Qe3 Qa8 Bcb6 Nd6 Ke5 Qg6 Kd4 Nf7 Kc3 Nd2 Kb2 Ra1 Qg1 Ra4 Qg5 Nf1 Rgb4 Rg4 Kb1 Kg3 Be3 Bfd5 Qh4+ Kf3 Kb2 Rg3 Rg4 Be4 Bed2+ Ke2 Qd4 Bf3 Be1+ Nd2 Qde4+ Kf1 Qed3+ Kg1 Qe3+ Kh1 Bf2 Nf1 Kb1 Rd4 Ka1 Ra4+
r1BR2QN/1b3QNn/q6p/1k3q1B/Pn1P4/3n2rB/3Rr3/1K1N1qrN b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 h4 Na6 g4 Nb8 f5 Ra5 Bb2 Ra7 Be5 Be6 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ra8 Ne2 Bd7 Ng1 Bc8 d4 Kd7 Kd2 b5 Kc1 e5 g7 c5 g6 e4 f7 f3 f8Q c4 d6 Kc6 f6 f2 d7 e3 f7 b3 Nc3 e2 Nh3 e1R Kb1 Nf6 g8B b4 g7 Qa5 d8N+ Kb6 Qe8 b2 f8N Re2 Qb3 Nc6 Qf7 Bb7 Nd1 c3 Ng6 Kb5 Ne6 Qa6 Bg2 f1R Nf2 Rg1 Bh3 h6 Rh2 Nh7 Nh1 Re5 Rd2 Re2 Qf4 Rg3 Bf7 Rhg8 Nh8 Rg1 Bh5 Rg3 Kc2 Rg1 Qf2 Rg3 Rc1 Rg1 Kd3 c2 Qf7 b1Q Qd5+ Kb6+ Qc4 b3 Kc3 b2 Kd3 Rgc8 g8B Nb4+ Kc3 Rc6 Ng7 Rcg6 Qcd5 Qa1 Rb1 c1N Qg5 Nd5+ Kc2 Kb5 Qd8 R6g3 Qc8 Nf8 Bh7 Nd3 B7f5 Nh7 Qcg8 R3g2 Rc1 Rg3 Bc8 N5b4+ Kb3 Qf6 Rc7 Qg6 Rd7 Qa6 Rd8 b1Q+ Nb2 Qf1 Nd1 Nd5 Kc2 Qf5 Ne3 Qaf1 Nd1 N5b4+ Kb1 Re7 Rc2 Re4 Rd2 Re2 a4+
1N2Rn2/1K1n2kP/1b1r4/2R4n/p3QRQ1/1q1PN2b/q1B4n/1BbN1q1N b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 b3 a5 Ba3 h6 Be7 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 Kf7 e4 c5 h4 a4 h5 g4 f6 g5 h6 c4 b4 c3 d6 c2 h7 c1N e5 Qe7 e6+ Kg6 f7 Ne2 d7 Qd8 b6 Kf6 b5 Ba6 e7 Qe8 d8R Nh6 b7 Kg6 b6 Qb5 e8B Nd7 b8Q Ng8 b7 Ne7 Nh3 Bh6 f8N+ Kg7 Nc3 Qb3 Rc1 Ng6 Qa8 Ng3 b8N Bc8 Qe4 Nh5 Bd3 Rg8 Bc2 g3+ Kf1 g4 Nf2 Bg5 Rh4 g2+ Kg1 Rh8 Nh1 f2+ Kh2 g1N Kg2 g3 Qg4 Nf3 Nd1 Nh2 d3 Bh6 Bf7 Bg5 Re8 f3+ Kh3 g2 Ne6+ Kf6 Nc7 f1Q Be6 f2 Nd5+ Kg7 N5e3 Qe2 Bg8 g1B Kg2 Ngf8 Bf7 Qc3 Ba2 Qb3 Bab1 Qe6 Bb3 Qa2 Rc5 Qf7 B3c2 Qfb3 Qge6 Bh6 Rf4 Rg8 Kh3 f1Q+ Kh4 Nf3+ Kg4 Nh2+ Kf5 Bg5 Ng2 Be3 Q6c4 Bc1 Nge3 Bd8 Qb4 Bb6 Qbc4 Ndf6+ Ke5 Bh3 Kd6 N6d7 Kc6 Kh8 Rf7 Rg6+ Kb7 Rd6 Rf4 Kg7 Qce6 Qb5 Q6f5 Qbb3 Qg4+
Nn4b1/1r2P3/rkB5/1N2rn1N/2nRRPK1/3rB3/Rpq2Q2/qNq2Q2 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 g4 d5 b4 axb4 gxh5 e5 cxd5 Bd6 Qg4 fxe4 Qd1 e3 Nc3 e4 Nb1 Be5 dxe5 Be6 Qf3 Bd7 Qd1 Bc8 Ke2 Kd7 a4 b5 h4 g5 f4 c5 h6 Kc7 a5 c4 h7 c3 a6 b3 e6 c2 a7 b2 e7 b4 h5 b3 h6 g4 d6+ Kb6 d7 g3 Na3 b1R Ra2 g2 Nb5 Qc7 d8N Be6 Nf3 g1Q Bg2 b2 Bd2 c1Q Qf1 Q7c2 Rh3 Bf7 Ne6 Ra1 Ng7 Be6 Ra5 Ra3 Nh5 Rd3 Ra2 Qa1 Qf2 Qgc1 Rh1 Bf7 Re1 Bc4 Na3 Be6 Nd4 Bf7 Nb1 Bb3 Kf1 e2+ Kg1 e3 Kh2 Bd5 Kg3 Be6 Nb5 Bb3 Rg1 e1N Bc6 Nf3 Re1 Ne5 Qf1 Nc4 Kg4 e2 Be3+ Rd4 Rd1 e1R Qf2 Re2 Re1 Na6 Qf1 Rb8 Qf2 Rb7 Qf1 Nb8 a8N+ Kc5 Bd2 Re6 Re4 Re5 Be3 Nf6+ Kg3 Ne8 Kg4 Ng7 Qf2 Rg8 h8Q Nf5+ Qg7 Rf8 h7 Rf6 h8R Rh6 Rd8 Rhe6 Be8 Ra6 Rd7 Kc6 Qh7 Rd3 Rdd4+ Kc5 Qf1 Na3 Qh8 Bg8 Bc6 Nc4 Qf6 Raa7 Qh4 Ra6 Nac7 Kb6 Qh2 Qa4 Qhf2 Qac2 Na8+
6R1/1R1RpQr1/3nNN1Q/kB3q2/1QRnP1q1/r4r2/5Pn1/BKb1q2q b - - 0 1 legal: proof: c4 a5 a4 b5 axb5 f5 g4 d5 cxd5 fxg4 b4 axb4 h3 g5 Ra5 g3 Qb3 g4 Qd1 g2 Ra4 g3 Ra1 Bg4 hxg4 Ra2 Nf3 Ra7 Ng1 Ra8 e4 Kd7 d4 c5 Kd2 Kc7 Kc2 Kb6 g5 h5 g6 c4 d6 h4 g7 c3 d5 h3 d7 h2 d6 Nf6 g8Q Ne8 Qe2 Ra3 Qf7 Bh6 Nh3 g1R Ng5 g2 Qeh5 Nc6 Ne6 Ka5 Bb2 Rg8 Bc4 Rg7 b6+ Bg5 Qh6 b3+ Kd3 c2 b7 c1Q b8Q Qf4 Nc3 Qg4 Rb1 Nd4 Ba1 b2 Rc1 Qc7 d8R Qc5 d7 Nd6 Rg8 Qcf5 d8R b1Q+ Rc2 Rc1 Rd7 g1N Qb3 Re1 Nd5 Ngf3 Nf6 Nh4 Ba6 Qc1 Rc4 Ng2 Rf1 Qcd1+ Kc3 h1Q Kb2 Re3 Rg1 Qd3 Rb1 Rf3 Qb7 Qdf1 Qb8 Rac3 Ka2 Be3 Rb6 Bc1 Kb1 Ra3 Rb2 Nc8 Qd6 Qe1 Rbb7 Nh4 Bb5 Ng2 Qc5 Nd6 Qb4+
R3B3/3b4/1nQ4Q/b2Nb1P1/3r1Qrr/NrBk3r/K2Pp2R/n2NN1n1 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 a4 b5 axb5 g5 hxg5 f4 c4 Ba6 g6 Bc8 g5 Qd5 cxd5 Bg4 f3 Bxf3 Ra5 Bg4 Ra1 Bc8 b4 Kd7 b6 Kd6 b5 Kc5 d6 Kd4 d7 e5 d8Q+ Nd7 g7 h5 b7 a5 b8N c5 b6 h4 b7 a4 Be2 h3 Nc3 h2 Ba6 a3 Nb1 c4 Nc3 f3 Qc2 a2 Kd1 e3 Qb3 e2+ Kc2 e1R Kb2 e4 Qd1 e3 Nb5+ Kd3 Nd6 e2 Qe7 f2 Qf6 f1R Nf3 Ne7 g8N Ng6 Nf5 Bb4 Qb6 Nh4 Qc6 Nb6 Nf6 Rg1 Ne3 Rg4 Nbd7 Ba5 b8Q Ra7 Bb7 c3+ Kb3 c2 Qf4 Rd8 Bb2 c1B Bc3 Bb2 Nfd5 Ra8 Qh6 Rb8 Qc1 Reg1 Bc6 R1g3 Nd1 Rh3 Nc7 Rb7 Nf6 Rd4 Nfd5 Bd7 Nb5 Rb8 Na3 Rb7 Rg1 h1R Rg2 Rb8 Rh2 Rb7 Rb1 a1N+ Ka2 Be6 Be8 Bd7 Bb4 Rb8 Qcc6 Rb7 Ng1 Nf3 Bc3 Rhh4 Rg2 R1h3 Rh2 Bc1 Rb4 Bb2 Ra4 Re4 Bb4 Be5 Bc3 Rd4 Rf2 Bb4 Ra8 Ba5 Rg2 Ne1 Nf3 Rb8 Nh2 Nf3 Rf2 Ng1 Nf3 Nc8 Rg2 Rb3 Rh2 Nb6 Ne1#
b1N2bn1/3rQ1N1/2q5/1b1P1n1B/2b2pb1/1k1PBQ1R/n1RQb3/K3QB2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 a4 d5 f4 e5 c3 exf4 c4 Ra7 cxd5 Rb7 Nh3 axb4 Ng1 b3 Kf2 b4 Ke1 Rb5 axb5 Ba6 Rh4 Bb7 Rh1 Bc8 e4 Ke7 g4 Kd6 g6 Kc5 b6 h5 g7 f5 g5 h4 b7 b2 g6 h3 Qf3 b3 Kd1 Kb4 Ne2 c5 Ra2 h2 Na3 b1B Nc4 b2 Nd6 c4 Ng3 c3 Nh5 Nc6 b8Q+ Qb6 Qa7 Bd3 Qe7 Bc4 Kc2 Nd4+ Kb1 B8a6 Nc8+ Kb3 Nd6 Qc6 Nc8 Rh7 e5 Bb7 e6 Ba8 d3 Bb5 Qe2 f3 Qe1 f2 Be3 f4 Qd2 Nf5 Qe1 Nf6 g8Q Rf7 Qh8 Ng8 Qd4 Rh7 Qe4 Rg7 Qf3 Rh7 Bg2 f1B g7 Be2 Bf1 Qa6 Rg1 h1B Rg3 Qc6 Rh3 Bg2 Qd8 Bh1 e7 Bg2 e8B Bh1 Qff2 Bhf3 Qe7 Bg4 Qg2 Rh6 Qf3 Rd6 Ra4 Rd8 Rc4 Rd7 Rc5 Ka4 Ka2 b1B+ Ka1 c2 Bg6 c1N Rc2 Na2 Qd2 Nf6 g8Q Kb3 Qge6 Ng8 Ng7 Ka4 Rc1 Bc2 Be8 Bb3 Rc2 B3c4 Bh5 Kb3 Bg1 Bd1 Qee1 Be2 Be3
1Qn3bQ/5N1B/1np1rb1n/5b2/2R4Q/rrk2KnR/4PPQ1/NBn3B1 b - - 0 1 legal: proof: h4 d5 d4 g5 c4 e5 a4 b5 axb5 g4 g3 exd4 cxd5 f5 Bd2 f4 Bc1 Qg5 hxg5 fxg3 b4 Ke7 g6 Kd6 b6 Ke5 d6 a5 g7 h5 b5 g2 b7 h4 d7 d3 d8Q a4 b6 h3 Qh4 Kd4 Bd2 h2 Qh5 a3 Bg5 g3 Qe8 a2 Qf7 c6 Bh4 Rh6 Qc2 Ra3 Kd2 Nd7 b8Q Be7 b7 Re6 Nh3 g1R Qg6 Nb6 Bg2 Nh6 g8B Bf6 Be4 g2 Ng5 Re1 Bh7 g1N Qg8 Nh3 Nf7 Nf4 Qg2 Nfd5 Bg3 Ne7 Bc7 Bd7 Qh8 Nec8 b8Q Rc1 Qb2+ Rcc3 Bg3 Kc4 Ke3 Rcb3 Kf3 d2+ Bd3+ Kb4 Bc7 d1B Nd2 Bc2 Rac1 a1N Qe5 Be8 Qeg3 Kc3 Qh4 Bd7 Rhe1 h1N Bh2 Ng3 Rh1 Be8 Bg1 Bd7 Rh3 Be8 Ne5 Bf7 Bdg6 Bg8 Nf7 Rb5 Nb3 Rb4 Rd1 Bf5 Rd4 Rb5 Rf4 Rb4 Nd4 Nb3 Nc2 Nc1 Na1 Rbb3 Rg4 Re5 Ra4 Bd7 Bc2 Bf5 Bb1 Re6 Rc4+
B7/bQ2nBKp/7R/1P1RBb2/3bP3/2b2r2/n1kn1QRr/2b1NNrB b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 h4 f5 g4 g5 Ra5 fxg4 Ra1 g3 Ra3 g4 Ra1 Qg5 hxg5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 d3 b4 g2 b6 a4 c5 g3 c6 a3 g6 d2 c7 a2 g7 Nc6 b7 Nce7 Nf3 g1B b8Q g2 b5 Ba7 Qe1 d1R Bf4 g1B Qb7 Bgd4 Qf2 d6 Bg2 Rg1 Bg3 d5+ Kf4 Nf6 Kg5 Ne4+ Kh6 Kf5 e6 Nd2 Be5 Bd7 c8B Ke4 e3 Kd3 e4 Kc2 Ne1+ Kc1 Nd3+ Kc2 Rh5 Bc3 Bh1 d4 Bf6 Rg8 Rd5 Rg2 Be5 Rh2+ Kg5 Rb8 Kf6 Ra8 Qa6 Rb8 Bb7 Rc8 Ba8 Rc6 Nb2 d3 Qb7 Ra6 Kf7 Ra3 Kf6 Nc8 e7 Bf5 e8B Ne7 Bf7 Bcd4 Nc3 Rb3 Rg1 a1B Ne2 Ra3 Ng3 Rb3 Na4 Bac3 Nc5 Ng6 Ra1 Rb1 Rd8 Rg1 Qe1 Nf3 Nf1 Bd6 Qc8 Ne7 Ra6 Rg3 Qb7 Rg1 Ne6 Ba3 Rd5 Bc1 Qe3 d2 Rc6 d1N Qf2+ Nd2 Nc5 B3b2 Nd3+ Nc3 Rb6 Rg3 Ra6 Rf3 Rad6 Rc8 g8R Na2 Rg1 Rc6 Kg7 Bbc3 Rh6 Rg6+ Kf8 Rg4 Rg3 Rgf4 Kg7 Rfh4 Rgg6 Rg4 Rg5 Rg1 Rgg6 Nb4 Rg2 Na2 Ne1+
2b3N1/1BB1RQ2/K2Q2Rr/8/k2bbNrn/3PbB2/r1rNqpNP/7r b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 f4 exf4 a3 h5 a4 hxg4 axb5 a4 Nh3 Nc6 Ng1 Na5 bxa5 Ra7 Bb2 Ra6 Bc1 Ra8 e4 Kd7 Ke2 f5 Kd3 c5 Kc4 g5 d3 a3 d6 f3 e5 f2 a6 f4 a7 g3 b6 Kc6 e6 g2 e7 g4 e8N f3 b7 g3 b8Q a2 d7 Bh6 Nd2 Qe7 Nh3 g1R Qbb3 g2 Qdc2 Be3 Ba3 Rh6 Be2 f1B Nf4 f2 Re1 a1B Nf6 Bad4 Bf3+ Qe4 Qca2 Ne7 Qb8 Nf5 Ng8 Nh4 Bb4 Be2 Ba5 Rf1 Bd8 g1R Bc7 Rg4 Rg1 Bd1 Rg3 Rh1 Ng2 Be2 Kb3 c4+ Kb4 c3 Ka5 c2 d8N+ Kc5 Qf7 c1R Ne6+ Kc6 Nef4 Rc2 Nd5 Qe7 Ndf4+ Kc5 Bb7 Bf3 Re2 Bc6 Ka6 Kb4 Re1 Ka4 Re2 B8d7 Qd8 Bf5 Qd6 Bce4 Re1 Rc8 a8B Ra2 Bb8 Rcc2 Bc7 Rg7 Rg6 Bc8 Rb1 Qe6 Rb5 Qg4 Re5 Qf3 Re7 Qe2 Rge6 Rg4 Rg6 Bd7 Bd5 Bc8+ Bab7 Bef5 Bf3 Be4 Qg7 Bd7 Qgf6 Bc8 Qf7
1n1bN2B/QQ2qR2/N3PBPr/nK3Q2/4B1pb/4b3/1b4Q1/1Rnnk1n1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 Nh3 dxc4 Ng1 f3 Bh3 f4 Bg2 Qd5 Bf1 Qd8 h4 g5 h5 Bf5 gxf5 a5 Qa4 Ra6 Qd1 Rg6 hxg6 Qf6 Rh6 Qd4 Rh1 Qd8 b4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 Ke4 d5 h5 b6 c5 d6 h4 d7 a4 b7 g4 b5 a3 b6 a2 e3 h3 f6 f2 f7 h2 Qd6 f3 Ba3 Be7 f8Q Bh4 Qd2 Ne7 Bb2 Rh6 Qd1 Nec6 Qe2 Qe7 d8B Na5 Bg2 f1N Nh3 Ng3 Rf1 h1N Nf4 Nf2 Nd3 Nh3 Na3 Ng1 Rab1 a1B Rf2 Nbc6 Nb4 Nb8 Kc2 c3 Na6 c4 Nb5 Qf6 Qd2 Qe7 Nbc7 N3e2 Ne8 Nc1 Qe2 Qc5 Bf6 Qe7 Kd1 c2+ Kd2 Qh7 Bh8 Qe7 Bbf6 Be5 Qf7 Bc7 Kc3 Bd8 Bh1 Qe5+ Kb4 Qe7+ Kb5 c3 Qe1 Kd3 e4 Nc4 e5 Na5 Rf1 f2 Qe4+ Kd2 Qg2 Ke2 e6 Kd2 Rd1+ Ke2 Rd6 Ke1 Rd7 f1N Qf8 Ne3 Rc7 Nbc6 b8Q Nd1 Qa7 Nb8 b7 Nce2 Ka4 c1B Kb5 c2 Rd7 Be3 Qf7 Nbc6 b8Q c1B Qbb7 Bb2 Qf8 Nb8 Rc7 Qg7 Rf7 Nc1 Qfc5 Qf8 Qf5 Qd6 Qh3 Qc7 Be4 Qe7 Qg2
3n1Q2/2k1R2P/1rqbRR2/N6K/P1Q1r1pB/Bqr2nN1/6Qr/1r3r1Q b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 b4 axb4 g4 f5 exf5 Qd7 f4 Nh6 g5 Ra4 f6 Ra8 f5 Qd6 Be2 Qd8 Bf3 Be6 Bg4 hxg4 g6 Bf7 gxf7+ Kd7 Qb3 Ng8 Qa4+ Nc6 Qd1 Nb8 Kf2 g5 Kg3 e5 h4 b5 a4 c5 d4 b3 d6 b4 d5 b2 h5 c4 h6 c3 Na3 b1R Ne2 b3 Re1 c2 Nc4 e4 Na5 e3 Ba3 c1R Rf1 Be7 f8R b2 f7 Ra6 f6 Nc6 Re8 Nd4 f8Q Nf3 f7 Rb6 Qg7 Rc3 f8Q Qc7 Qf4 Qc8 Qc4 Qc6 Rf2 Rh7 Qh1 Rf1 Rc1 b1Q Re1 Qb3 Qg6 Bf8 Re6 Kc8 d7+ Kc7 Qge4 Ne7 d8B+ Kc8 d6 Rh8 Nf4 e2 d7+ Kb8 Nh5 Rh7 Kg2 g3 Kh3 g2 Kg4 g1R+ Ng3 Rh8 Kh5 g4 Rc1 e1R h7 Rg2 Rcc2 Rb1 Rce2 Rg8 Qed5 Rg7 Re1 Rf7 R1e2 Rf4 Qd2 Re4 Qa2 Nf5 Bh4 Nd6 Re1 Nb7 d8Q+ Qc8 Qb2 Bd6 Qf8 Nd8 Re8 Rh2 Re3 Nd4 Rf6 Qc6 Qbg2 Kc7 Re1 Nf3 Re2 Rf4 R2e6 Re4 R8e7+
nN5k/4P1b1/NnbN4/1qQr1B2/B2Rqb1B/2p4Q/2bbPK2/2b2N1R b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 c4 dxc4 fxe5 Qf6 Qc2 Qe7 Qd1 Qd8 h4 g5 Kf2 a5 Ke1 Ra6 Ra2 Rg6 Ra3 fxg4 Ra1 g3 Na3 g4 Nb1 Rg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 b4 Kf7 d4 Kg7 b6 h5 g6 c5 e6 c3 b5 g2 e7 a4 d5 c4 b7 g3 b6 c2 d6 h4 d7 a3 Qd3 h3 Qd2 h2 Qg5 c3 Nd2 a2 Qc5 Qe8 d8N Nd7 b8N Ngf6 b7 Rh5 Qb6 Rd5 Ne4 Kh8 Ndc6 Bg7 Qc5 Nb6 Na6 Nfd7 b8Q Na8 Nf3 g1B Bg5 c1B Nd6 g2 Nd2 Ndb6 Bh4 Bf5 Qc8 Be3 Ncb8 g1B Bh3 Bc2 Nf1 Bf4 Bf5 Bge3 Rb1 a1Q Rb4 Qa3 Rd4 Bed2+ Kf2 Qa5 Qe6 Qeb5 Qe3 Qd3 Qh3 Qe4 Bd7 Bgh6 Ba4 Qb5 g7+ Kh7 g8B+ Kh8 Rg1 h1B Be6 Bg7 Bf5 Bf3 Bb3 Bh5 Rh1 Be8 Ba4 Bd7 Nb4 Bc6 N4a6
3b2Qb/3rr1R1/QNkbnQ2/1BqR2p1/1q2b3/R1B2q2/1P1Qq1NP/K7 b - - 0 1 legal: proof: f4 d5 g4 h5 a4 hxg4 c4 a5 cxd5 Na6 f5 b5 axb5 e6 bxa6 exf5 Bh3 f4 Bg2 Rh3 Bf1 Rh8 d4 Kd7 Kd2 c5 Kc3 f5 e4 c4 a7 f3 e5 g3 d6 f2 e6+ Kc6 d7 g2 e7 a4 e8R a3 Qb3 a2 Ne2 g1B Re7 f4 Qa3 f3 Rf7 Nh6 Nf4 Qe7 d8Q Rh7 Nd3 Bf5 Kc2 c3 Qda5 Rd8 Bf4 Be4 Nd2 Nf5 a8Q+ Qb7 Be2 f1Q Be5 f2 Nc4 g5 Qb3 Be7 Q8a6+ Qb6 Rd1 a1Q Bh8 Qa3 Kb1 Qg2 Qe5 f1Q d5+ Kd7 d6 Qab4 Ka2 c2 Nf4 Kc6 d7 Qgf3 Ng2 c1B Bg7 Re8 d8Q Bd4 Qe3 Bc3 Rd5 Nd4 Qd3 Be3 Qd2 Ne6 Bf6 Q1f2 Ra1 B3c5 Bd3 Bcd6 Kb1 Qh3 Ra3 Qhf3 Ka1 Q2e2 Qb8 Rd8 Bg7 Rd7 Qg8 Bd8 Qef4 Bcf6 Qf5 Bfe7 Bc3 Bf6 Qff4 Bh8 Qf6 Kc7 Re7 Q6c5 Nb6 Kc6 Bc4 Rh6 Rh7 Rg6 Bd3 Rgg7 Bc4 Rgf7 Rg7 Rfe7 Bb5+
3k3K/1B2q1rP/7q/Q1Qn1prN/nNP1R3/3R1R1Q/rn2rB1b/1nQ5 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 g4 b5 axb5 cxd4 b3 a5 b6 h5 gxh5 a4 Ba3 Bb7 Bc1 a3 Ra2 Bc6 Ra1 Ba4 bxa4 Ra7 Nf3 Ra5 Ng1 Ra8 Kd2 f5 Kd3 g5 h4 d5 c4 a2 e4 g4 e5 g3 b7 f3 e6 g2 e7 f2 h6 Nd7 b8Q Bg7 h5 Ra5 h7 Nf8 h6 Ne6 Rh3 Ra6 a5 Bf8 Qc8 Ra7 a6 Nf6 Ne2 g1R Bg2 f1Q Na3 Qf4 Be3 Re1 Qc2 Rg8 h8Q Rg5 Rd1 a1R Qc5 Ra2 Ng3 Re2 Bf2 Qh4 h7 Qh6 Nh5 Kd7 e8R Bd6 Qf8 Bh2 Rf3 Qe7 Qb2 Rb7 a7 Rc7 a8Q Rb7 Qca5 Ra7 Rd2 Nc5+ Kc2 d3+ Kc3 Rb7 Kd4 Na4 Nc2 Rc7 Rd1 d2 Qc1 Ra7 Nb4 Rb7 Rf1 d1N Rd3 Ndc3 Qb8 Nb1 Qg3 Qd8 Re4 Qe7 Qh3 Rc7 Qg7 Kd8 Qc5 Qf8 Qg8 Rcg7 Qe6 Qe7 Qa6 Nd7 Qaa5+ Ndb6 Ng3 Qf8 Ke5 d4 Rfd1 Qf7 Rf3 d3 Bh1 d2 Bg2 Qa7 Bh1 Qh4 Kf6 Qb7 Nh5 Qc7 Rg1 d1N Rgg3 Ndb2 Rd3+ Qd7 Rgf3 Qf4 Rc3 Qdc7 Rcd3+ Nd5+ Ke6 Rg1 Re5 Rd7 Rfe3 Ndb6 Bb7 Nd5 Rf3 Rg4 Re4 Qh6+ Nf6 Ne7 Kf7 Rg5 Nh5 Nd5+ Re7 Qe6+ Kf8 Qa6 Re4 Qh6+ Ng7 Rf7+ Kg8 Rd7 Kh8 Rf7 Qaa7 Qe7 Nh5 Rfg7 Qaa5+
Q7/QnPB3r/1KNk2n1/4BR1B/qn3Q2/p2q1r2/PB5q/Rq1b1n1N b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Nh3 g4 Ng1 Bg5 hxg5 Qb6 Bb2 Qc7 Bc1 Qd8 Ke2 Kd7 Ke3 e5 f4 h5 c4 a5 d4 b5 g6 a4 f5 b4 d5 a3 d6 h4 g7 h3 f6 h2 f7 b3 f8B g2 Bd3 b2 Nh3 g1Q+ Nf2 g3 Nd2 b1Q Qb3 g2 Qb6 Rh7 Nb3 Na6 Be2 Ne7 g8Q Ng6 Nd4 Qd1 Bg7 g1Q Qf8 Nb4 Qf4 Qa4 Bb2 Qg2 Rd1 h1N Rf1 Qh2 Bh5 Ng3 Nc6 Ke6 d7 Rb8 Kd2 e3+ Kc3 e2 Qa7 e1N Nh1 e4 Kd4 e3 Rf2 e2 Be5 Qf8 d8Q Ned3 Qda5 e1Q Qa8 Rc7 Q5a7 Nf1 Qe4 Qa5 Ne7 Qf5 c6 Na6 c5 Rb3 Kc4 Rd7 c7 Ndb4 Nc6 Rh7 Qd4 Qf3 Qh4 Re3 Bec3 Qb5+ Kd4 Qa4 Kc4 Qfh3 Rf8 Rd3 Qf4 Qe5 Rf7 Qac2 Kb5 Qa4+ Kb6 Kd5 Rf6 Bg4 c8B Q3g3 Rf5 Bd1 Bd7 Re3 Qf8 Qf3 Nd8 Rd3 c6 Nc5 c7 Nb7 Qe8 Kd6 Nc6 Qe4 Qh8 Rf3 Qha8 Qed3 Bxe5+
1n6/r1NBbQ1Q/Qr1bn3/6Rb/B1QB1pnP/Nb1K3R/Pr6/3k1n2 b - - 0 1 legal: proof: g4 c5 d4 h5 gxh5 a5 f4 d5 b4 axb4 c3 e5 c4 exf4 cxd5 c4 Bg2 Qb6 Bf1 Qc5 dxc5 Ra3 Kd2 Ra6 Ke1 Ra8 Kd2 Kd7 h4 f5 e4 g5 h6 b5 e5 c3+ Ke2 g4 h7 b3 d6 Kc6 e6 c2 d7 b4 d8Q Kb5 e7 Kc4 e8Q g3 c6 g2 c7 b2 Na3+ Kc3 Rb1 b3 Qf7 f3+ Ke3 f2 Qg4 f4+ Ke2 Bd6 Qfh5 Nf6 Qgg6 Be6 c8B Ra7 Be3 c1B Rh3 Ng4 Ra1 b1B Qd7 b2 Nf3 Bb3 Qdf7 Rd8 Qgg8 Bg6 Ng5 b1R Qh6 Bh5 Ne6 Be7 Qhg6 Rd6 Nc7 Rb6 Bd7 Kb2 Bc5 g1N+ Kd3 Nf3 h8Q+ Nd4 Qhh7 Ne6 Qc8 Be3 Bd4+ Kc1 Qe4 Bd6 Qa6 Kd1 Qc6 Bd2 Qcc4 B2b4 Bg2 f1N Bgc6 Rc1 Rb1 Bbc5 Rb2 Rb1 Rg2 Rb2 Ba4 Be7 Rgg3 Bcd6 Rg1 Nf6 Rg7 Ng4 Rg5
QQ3N1R/4RNb1/p6b/qP2Rk1b/5b2/1B1n1r1b/2Kb1RNP/q1b3B1 b - - 0 1 legal: proof: f4 b5 d4 e5 g4 h5 c4 hxg4 e4 bxc4 a4 d5 exd5 a6 d6 e4 d5 Nd7 Qd3 Rb8 Qd1 Ne5 fxe5 Rb5 axb5 Rh4 Nd2 Rh6 Nb1 Rh8 Kd2 Kd7 b4 f5 b6 c5 b5 g5 b7 g3 b8Q g4 Qb3 g2 Be2 e3+ Kd1 g3 Ra3 f4 Qd3 f3 Ra2 f2 Ra4 f1B Na3 c3 Nc2 c4 Ne1 Ne7 Qa8 Bg7 Ngf3 g1B Kc2 g2 Ra2 Rh3 Ng5 Rf3 Ne6 Ng6 Bd1 e2 Be3 Nf4 Qd4 Qa5 Qda7+ Bb7 Q7b8 Nd3 Bd4 Be3 Rg1 Bc8 Nf8+ Kd8 d7 Ke7 d8R Beh6 Be3 Bh3 e6 Kf6 e7 Kf5 e8R Bg4 d6 Bh5 Rh1 g1Q d7 Bh3 Ng2 e1B Re7 Bd2 Rc8 Qf1 d8N Qe1 Bg1 Bdf4 Be2 Qa1 Nf7 Qb4 Bf1 Bd4 Be3 Bg3 Nh7 Qa3 Rh8 Nb2 Nf8 Bgf4 Bf2 Bdg7 Bb6 Qe1 Ra1 Qa5 Bd4 Qe5 Kb1 Qf6 Be2 Nd3 Bd1 Qe5 Ra2 c2+ Ka1 c1B Kb1 Bce3 Re1 c3 Bb3 Qf6 Rae2 Bd2 Bg1 Qe5 Rf2 Qd4 Kc2 Qda4 Kd1 c2+ Ke2 c1B Kd1 Qa3 Kc2 Qa1 R1e5+
Q3B3/K1R5/nRQp1B2/2Bq2nP/B3krRN/1r1rN2r/2nP3q/2r4q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 b3 exf4 b4 h4 axb5 c5 Bg2 cxb4 Bh3 Ba6 Bf1 Bc8 Na3 g5 Nb1 Bb7 Ra2 Be4 Ra4 Bg6 Ra1 Bh5 gxh5 Rh6 Nh3 Rh7 Ng1 Rh8 Na3 g4 Nb1 g3 Ra4 g2 Ra2 Bc5 Ra1 Bf8 Kf2 Qb6+ Kf3 Qd8 Ke4 Bc5 Kd3 Bf2 Ke4 Qa5 Kf3 Bg3 hxg3 Nh6 Kf2 Qd8 Ke1 Ng8 Kf2 Ke7 e4 Kd6 c4 Ke5 b6 a5 g4 f5 g5 a4 c5 b3 c6 h3 b7 b2 c7 h2 c8R a3 g6 a2 g7 f3 Ke3 f2 Qc2 Ne7 g8Q Rh6 Qc6 Rd6 Rc7 Nc8 Na3 b1R Bb5 f1R Nc2 Rd1 Ba3 f4+ Kf2 f3 Ke3 Rb2 Rb1 a1N Qa2 f2 Nf3+ Kf6 e5+ Kf5 e6 g1Q e7 Rc1 Bb4 Ra3+ Bc3 Qg2 e8B f1R Rg1 Rb4 Rb3 h1Q Bf6 Qgh2 Rg7 Rdd4 Rg4 Rf4 Kd3 Nd6 Ke3 Nf7 Kd3 Ra6 Qa5 Rb6 Qa8 Na6 Ba4 Rbd4+ Kc3 Rd5 Nh4+ Ke4 Kc4 Rf3 Rb2 Rh3 Rb1 Rd1 Ne3 Ng5 Rb2 Nc2 Rb4 Qe7 Rb5 d6 b8B Rf1 Ba7 Qe5 Rb4 Rb5 Bc5 Rc1 Rb2 Rb8 Rbb7 Qe6 Kb5 Qf5 Kb6 Qe6 Qd7 Rd3 Ka7 Qd5 Rb3 Rb4 Qdc6 Rb5 Rc3 Rbb1 Rb3 Rb2 Rb8 Rbb3 Rb6
2N4k/2bRNBp1/Q1Q3b1/2b1N2B/1bPbP2K/1r6/bb1qR2B/r1r1N3 b - - 0 1 legal: proof: d4 b5 g4 e5 e4 c5 a4 bxa4 Bh3 h5 Bg2 hxg4 Bf1 d5 dxc5 d4 f3 Nf6 Bc4 Nc6 Bd3 Nb4 Bf1 Nbd5 exd5 e4 Nc3 e3 Nb1 Ne4 fxe4 Ba6 Bg2 Bb7 Bf1 Bc8 h4 a5 b4 f5 c4 Kf7 c6 Kg8 d6 e2 Kf2 a3 Kg3 a4 h5 d3 b5 a2 d7 d2 b6 a3 h6 Qe8 d8Q f4+ Kh4 f3 b7 f2 b8N e1B c7 g3 h7+ Kf7 Nd7 g2 Nc3 Bd6 Nb6 Qd7 Qa4 d1B Rh2 Bb3 Ncd5 Beb4 Nf3 g1B Be2 f1R Qa6 Bgc5 Bf4 Rc1 Ne1 Rf8 h8N+ Kg8 Rb1 a1B Bh5 a2 Qf6 Bad4 Re2 a1B Ng6 Ba2 Bh2 Bab2 Ne5 Kh8 Ne7 Rb8 Qe6 Rf1 Qd5 Qd8 Qc6 Bf5 c8B Bg6 Be6 Bc7 Bf7 Qd6 Ng4 Qf4 Nbc8 Qd2 Ne5 Ra8 Qab5 Ra3 Qba6 Rb3 Ra1 Bb1 Ra5 Ba2 Rb5 Rg1 Rb7 Ra1 Ng2 Rgc1 Ne1 Bd8 Rd7 Bdb6 Qaa4 Bc7 Qaa6
2b2R1Q/b1k1bn1B/q4BP1/5Pb1/2q1Qp2/6q1/1KbNrq2/QRNR3R b - - 0 1 legal: proof: e4 c5 a4 a5 h4 g5 d4 gxh4 Ke2 cxd4 Bf4 f5 Bc1 b5 axb5 f4 Ke1 Ra7 f3 e5 Qd2 Ra6 Qd3 Rf6 Qd1 Rf5 Nd2 Na6 Nb1 Nc5 exf5 e4 Nd2 e3 Nb1 Ne4 fxe4 Qf6 Qe2 Qg5 Qd1 Qd8 c4 d5 g4 Kd7 b4 h5 b6 e2 Kd2 e1B+ Kc2 d3+ Kb3 d4 b5 d2 e5 d3 g5 h3 c5 h4 g6 a4+ Ka2 a3 b7 h2 b8Q h3 b6 Bh4 b7 Qa5 Qh5 d1Q Bd2 Qa6 Bc1 d2 Bc4 Bfe7 Qa7 Qda4 e6+ Kc7 c6 d1B Ne2 Nh6 Bb2 Bc2 Nc1 Re8 Bf6 Nf7 Nd2 Bg5 Qh8 Q4b5 Rd1 h1Q Bd5 h2 b8R+ Qab7 Rb1 Qhf1 Qd4 h1Q Qa1 Qhf3 Bc4 Kb6 c7 Q1f2 Ra8 Qa6 Rh1 Bd6 e7 Q3g3 Bb3 Qc4 Ra7 Rg8 e8Q Be7 Qa4 Re8 Rd1 Bd7 c8R Be6 Rd8 Bc8 Ra8 Kc7 Rh1 Bd6 Rb8 Re2 Qae8 Bc5 Qe4 Ba7 Rf8 Be6 Rbd8 Bd7 Qc3 Bc8 Ka1 a2 Kb2 Qcc6 Be6 Qcc4 Qa3 Nd6 Bg8 Nf7 Bg7 Be7 Bh7 Bg5 Qa4 Be7 Rd3 Bg5 Bf6 a1B+ Ka3 Bc3 Rd6 Bb4+ Kb2 Bbc5 Qa1 Bb4 Nf3 Bbc5 Rdd1 Be7 Nd2
qR2B2R/b1Qb2n1/R2qNPb1/b7/4N3/p1QRk2n/P5K1/1B1bq1bB b - - 0 1 illegal: No possible last move, all moves rejected
N3K2b/qp2R2P/1Q2b3/Pn1NR1Bn/bQ1R4/Q5Qq/B3qk2/q2b3n b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Nh3 exf4 Ng1 h4 h3 g5 Na3 Rh5 gxh5 g4 Nb1 g3 Qc2 Ra6 Qb3 Rg6 Qd1 Rg4 hxg4 Be7 Rh3 Bc5 Rh1 Bf8 e4 Ke7 Ke2 Kd6 Kf3 Ke5 d4+ Kd6 a4 f5 e5+ Ke7 e6 Kf6 d6 Kg5 d5 c5 a5 g2 d7 c4 e7 h3 e8R Kh4 d6 h2 g5 b3 h6 c3 h7 b2 g6 c2 g7 Nc6 Re7 Na7 Qd4 Nb5 Na3 b1B Bc4 Qe8 d8Q Be6 d7 Nf6 g8Q Bg7 Q8b6 Bh8 d8Q Nh5 Nh3 g1Q Q8d6 Qc8 Bd2 c1Q Ba2 Bc2 Q4b4 Ba4 Nc4 Qb2 Re1 Qa1 Re4 Qgc5 Rhe1 h1N Rd4 Qe8 Qbc6 Qa7 Nb6 Qd7 Qf8 Qe8 Re5 Qd7 Ke2 Kg3 Kd3 f3 Bg5 f2 Na8 f4 Ke4 f1Q Qb6 f3 Nf4 f2 Nd5 Qe8 Qg7 Qh3 Qa3+ Kg2 Qdb4 f1B Qg8 Be2 Qg7 Bed1 Qg8 Qh2 Qg7 Bf7 Kf5 Kf2 Qgg6 Bg8 Qgd6 Qd7+ Kg6 Qdh3 Qb8 Be6 Q8d6 Beg4 Kf7 Be6+ Ke8 Q2g2 Qdc7 Qf1 Qcc3 Qe2 Qg3+
rNnn1Q1k/2PN4/n1n4B/2NnNbR1/K1B1r3/RPr4r/R1p5/1Q3n2 b - - 0 1 legal: proof: f4 c5 d4 g5 b4 Qb6 h4 gxh4 f5 Qe6 a3 Qb3 cxb3 b5 a4 c4 axb5 e6 Nc3 exf5 Nb1 Bc5 dxc5 f4 Kd2 Kf8 Kc2 Kg7 e4 h5 g4 f5 g5 d5 g6 a5 e5 f3 e6 a4 c6 a3 c7 h3 b6 f2 b5 h2 b7 d4 e7 d3+ Kc3 h4 Kb4 d2 e8Q f4 b6 f3 Ra2 h3 Be2 f1N Qb5 c3 Rc2 a2 Qc6 a1N Qe8 f2 Nf3 Nh6 Ra2 Nf7 Nd4 Nd8 Ba3 Nc2+ Kb5 Bf5 Bc4 Ng3 Be7 f1N Bc5 Nb4 Nf3 c2 Be3 Nb8c6 b8N Rh4 b7 Ne4 Nd7 Na6 b8N Nd6+ Ka4 Re4 Nc3 Nc8 Qb1 d1N Bf4 Nde3 Nfe5 Nd5 Ra3 Re3 Ne4 Rc3 Qe7+ Kg8 Nec5 Kh8 Rg1 h1R Rg5 h2 g7+ Kh7 Qd6 Rg1 g8R h1R R8g6 Rhh3 Qf8 Rg4 Be3 Ncb4 Rb6 Nbc6 Rb5 Re4 Ra5 Rh6 Rg3 Rhh4 Bh6 Rh3 Rg5 N6a7 Ra2 Nac6 Kb5 N6e7 R5a3 Nec6 Qe7+ Kh8 Ka4 N8a7 Qd6 Nc8 Qf8+
RBNK1n2/qQpn3P/5Nk1/2nQ1r2/Q1P1n3/2r4n/4Qr1N/3BnrR1 b - - 0 1 legal: proof: f4 b5 e4 b4 g4 b3 g5 d6 e5 dxe5 axb3 exf4 b4 f3 b5 Bb7 Ra5 Ba6 Ra1 Bc8 h3 h5 Ra6 Bg4 Ra5 g6 Ra4 Bh6 gxh6 g5 Ra5 Bd7 Ra1 g4 Ne2 g3 Ng1 Bg4 hxg4 Qd3 Ra6 Qd6 Ra1 Qd8 c4 f5 d4 Kf7 Kd2 e5 Kc3 a5 b4 f4 d5 a4 d6 e4 Kd4 h4 Ke5 f2 g5 a3 g6+ Kf8 Ke6 h3 d7 a2 b6 f3 h7 Kg7 b5 h2 b7 g2 b6 e3 Qe2 Qc8 Na3 Nf6 Ke7 Rf8 d8Q Nbd7 b8Q Qa6 b7 Qa7 Nb5 Kh6 g7 Kg6 Qe8+ Rf7+ Kd8 Nf8 g8N N6d7 Qe5 Rf5 Qc8 Rb8 Nd6 Ra8 Qd5 Rb8 Qb2 e2 Nf6 e1N Be2 f1R Be3 f2 Nf3 g1N Bd1 Nh3 Qe2 Ra8 Bg5 Rb8 Rg1 h1N Nh2 Ng3 Be3 Ra8 Rh1 Ne4 b8Q Rg5 Bd4 Rf5 Qbb5 Rb8 Qa5 Rb3 Qcb7 Ra3 Qa4 Rc3 Rb1 a1N Nc8 Nb3 Ra1 Nbc5 Ra2 Rg1 Ra1 Rg2 Rg1 f1R Ra3 Ncd3 Bb6 N3c5 Ra2 Qa6 Ba7 Qa5 Bb8 Qa7 Qab4 Qb6 Ra8 Qa7 Rh1 Rgf2 Qa4 Rh5 Rg1+ Rg5 Nfg4 Rgf5 Nf6+
1q1N2br/2N3Q1/1Rp1RN1b/rPbn1Q1r/2p1P2k/n3B1NB/7n/2K1B3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 c4 dxc4 f4 exf4 axb5 Qg5 Kf2 Qe7 Ke1 Qd8 e4 Ke7 d4 Kf6 Kd2 Kg5 h4+ Kf6 h6 g5 a6 f3 h5 f2 d5 c6 d6 g4 d7 Kg5 a7 f5 h7 g3 h6 g2 Ne2 g1B Ng3 f4 Bh3 f1R Nc3 f3 Nd5 f2 Ra6 Ne7 Rb6 Na6 Qf3 Nb4 Qf5+ Kh4 Nf6 Ned5 Rh2 Qe8 d8N Nc2 Rh1 Na3 Rh2 Rb8 a8N Be6 Nc7 Ra8 Rh1 Ra5 Rh2 Rg8 h8B Bg7 h7 Bh6+ Ke2 Rd1 Be3 f1N Bg7 Rf8 h8Q Bg8 Rg2 Rd2+ Ke1 Ra2 Kd1 Nh2 Kc1 Rf2 Qhh7 Rf4 Rf2 Rg4 Bh8 Rg5 Qg7 Rh5 Rg2 Qe6 Rf2 Qc8 Rd2 Qb8 Rd4 Nb4 Rd6 Nd5 Re6 Rf7 Qgg6 Rh7 Bg7 Bf2 Bf8 Bg1 Qg7 Rh8 Bb4 Bf2 Be1 Bg1 Bf4 Bc5 Be3
b5Q1/1ppNk2r/1B2PQK1/R1R5/6P1/1q2Q3/nr3Bnn/Q1b1brNB b - - 0 1 illegal: Other
r1QKnB2/1R1R1qBk/b1bQN3/4R2P/1p4b1/BPNqr1pn/8/Bq6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 c4 d5 cxd5 Qf6 a5 Qd8 Nc3 Bc5 Ne4 Bb6 axb6 a5 Nc3 a4 Nb1 a3 Bg2 a2 Be4 Nc6 Na3 Nb8 Bb1 axb1Q Kf2 Kf8 Kf3 f5 d4 g5 e4 Kg7 h4 c5 h6+ Kh7 e5 c4 e6 b4 d6 c3 e7 c2 e8R Na6 d5 Nf6 d7 Nc7 d6 Na6 h5 Nc7 b3 Ba6 b7 Bc4 b8B Bb5 Ne2 Na6 Re5 Bc4 Nc3 Nd5 Nab5 Re8 Nd4 Bb5 Ba3 c1Q Ne6 Nac7 Qd4 Bc6 Rd1 Qe7 d8Q Qcc2 d7 Qf7 Qc8 Re7 d8B Ne8 Bd6 Qd3+ Kf2 f3 Kg3 f4+ Kg4 f2 Ra2 Rd7 Bf8 f1B Bf6 f3 B6g7 Nf4 Qd6 f2 Rae2 Rc7 Rb5 Nh3 Rb7 Re7 Re5 Qd5 Rd2 Ba6 Rd3 f1B Rd4 Qg8 Rd3 Be2+ Kf5 Qc1 Rd4 g4 Rd1 g3 Rd2 Nc7 Kf6 Bg4 Rd3 Re8 Rd1 Qd3 Rd2 Rd8 Ke7 Qcb1 Rd1 Bd5 Rd2 Re8+ Kd7 Re7+ Kd8 Ne8 Rd1 Qf7 Rd2 Qff5 Rd1 Bc6 Rd2 Kg8 h7+ Kf7 Nf4 Nf6 Re6 Qdd5 Qd7 Ne8 Re1 Qde6 Qc7 Qfe4 Rd7 Qed3 Qd6 Qed5 Na2 Q5f3 Ba1 Qfd5 h8B Kg8 Nc3 Qf7 Bhg7 Kh7 Re3 Re4 Ne6 Re5 Rf3 Re2 Rf5 Re3 Re5
4N2b/5nRP/Nrr1Q1Rn/qkp3N1/1bq1BQ1N/1b1P4/3pr1Q1/B5K1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 d5 c3 d4 Ke2 dxc3 d3 Nc6 Qe1 Nb8 Qd2 cxd2 b4 Kd7 h4 a5 f4 g5 Kf2 e5 h6 c5 h7 e4 h5 g4 h6 a4 f6 a3 f5 a2 b6 Kc6 f7 Qe7 b5+ Kd7 f6 Ba6 b7 Kd6 b6 Kc6 Bb2 Qe6 Nh3 g3+ Kg1 g2 Ng5 e3 Nc3 e2 Nb5 e1B Nc7 Be7 f8N Bg3 f7 Bf6 Ng6 Bc3 f8Q Nd7 b8Q Bge5 b7 Qc4 Nh4 Bb4 Qbc8 Rb8 Ne8+ Kb5 Qf4 Bec3 Rh2 Ne5 Qe6 Nf7 Re1 Rc8 b8N Rc6 Ba1 Bb7 Na6 Rb6 Re4 Bd5 Be2 Bf6 Bf3 Rc6 Kf2 g1R Rg2 Rb1 Re3 Re1 Be4 Re2+ Kg1 Be5 Ngf3 Rb6 Rg6 Bg7 Ng5 Bd4 Bb2 Bg7 Rg3 a1Q+ Qf1 Qa5 Ba1 Qc3 Qff6 Bb3 Qf4 Qc4 Rg4 Ne7 Rg2 Nf5 Rg3 Rg8 h8Q Be5 h7 N5h6 Qhf6 Bec3 Qf6f5 Bh8 Qh3 Rc6 Qg2 Rf8 Nf6 Rb8 Ne8 Rbb6 Rg7 Bc3 Ngf3 Bb4 R3g6 Qc3 Ng5 Qc2 Bd4 Qc4 Ba1
NN1Q1b2/3qp2B/1Qb1pnBk/KRB3qr/1PPq4/6N1/1b1rn1N1/5R2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 e5 b5 a3 b4 axb4 Qb6 Nf3 Qa5 Ng1 Qd8 g4 a5 b3 h5 gxh5 a4 e6 fxe6 bxa4 Rh7 Bc4 Rh6 Bf1 Rh8 Kd2 Kf7 c4 d5 f4 g5 h4 Kg7 f5 g4 a5 d3 Kc3 g3 a6 d2 f6+ Kh6 f7 g2 a7 d4+ Kb3 d3 Ka4 Qc7 Nc3 Qb6 Nb5 Qc5 Ka5 Na6 Ne2 g1B Ng3 Kg7 h6+ Kg6 h5+ Kg5 h7 Bh6 f8N Be3 Nd7 Qd5 Nb8 Qd8+ Nc7 Bf8 h6 Nf6 Rh5+ Kg6 Rd5 Bd4 Rb5 Bb7 Qc2 d1Q Be3 Qb1 Qf2 Bb2 Bc5 d2 Bd3+ Be4 Qe3 Qg1 Rf1 d1Q Qf2 Kg5 Bb1 Bc6 Bg6 Q8d7 Qd4 Rg8 h8N Rg7 h7 Kh6 Qf2 Qg4 Qe3+ Qg5 Qd4 Bb7 Qd6 Qd4 Qb6 Bc6 Be8 Qge3 Ng6 Qg5 h8Q+ Rh7 Qg8 Rh8 Nf4 Rh7 Bg6 Rh8 Bd6 Nc5 Ng2 Nd3 Bc5 Nf4 Bh7 Ne2 Bg6 Bg7 Qd8 Bf8 Nba6 Rb8 a8B Rc8 Bb7 Rb8 Na8 Rc8 Qdc7 Rd8 Nb8 Kg7 Qc8 Rh5 Bh7 Kh6 Bg6 Qc7 Bh7 Rd5 Qd8 Qd7 Bg6 Qdf4 Bh7 Rd2 Bg6 Qfd4 Bh7 Bf3 Bbe4 Ng8 Rg1 Nf6 Beg6 Bc6 Rf1
r1R1q3/3P4/p1PrpN1q/2qB1RB1/1QN1n3/1r2B2n/Q1K1bBQ1/k6b b - - 0 1 illegal: No possible last move, all moves rejected
2Q2Bn1/K2Pp1Bk/b7/B3nNB1/r3qQPp/3rR2q/1QR5/nq1N2b1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 h4 gxh4 b4 a6 b6 Be6 b7 Bf7 b5 Be6 b6 Bc8 Bb5+ axb5 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 h3 d4 h4 g4 h2 f4 c6 d6 b4 d5 b3 d7 b2 d6 Ra7 f6+ Kh7 f5 Ra4 f7 Ra3 f6 Ra2 Bg5 Ra8 Nc3 b1N Qc1 Ra7 Ra2 Na3 Qb2 Bg7 f8B Nc2 f7 Na1 Nf3 Ra4 Re1 h1Q Re3 Qh3 Nd4 Be5 Bg7 Bh2 f8B Bg1 Nd1 Qe8 d8Q Qg6 Qc7 Qe4 d7 Ra3 Qf4 Rd3 Kc4 c5 Kb5 c4 Nf5 Nc6 Ka6 Ne5 Ka7 c3 b8Q c2 b7 c1Q Qa8 Qc2 b8B Qb1 Bc7 Ba6 Ba5 Kg6 Bd2 Rh6 Be1 Kh7 Qc8 Rb6 Ba5 Rb4 Qg2 Ra4 Rc2 Qeb4 Qgb7 Qe4 Qb2
1n1rbK2/1nNp2B1/2qB1Q1n/r1PPR1p1/2bNB3/1k2B3/b7/R2Qq1N1 b - - 0 1 legal: proof: b4 c5 bxc5 e5 f4 exf4 a4 b5 axb5 Qc7 Nf3 Qb6 Ng1 Qd8 g4 h5 c3 hxg4 Na3 Bd6 Nb1 Bc7 Kf2 Ba5 Ke1 Bb4 cxb4 Qb6 Bb2 Qf6 Bc1 Qd8 Kf2 Ke7 d4 Ke6 e4 g5 h4 f5 h5 a5 e5 Kd5 e6 f3 Ke3 a4 e7 f2 e8N a3 b6 a2 h6 g3 b5 g2 h7 Ba6 b7 Qf6 b6 Bd3 Na3 Qc6 Nc2 Kc4 d5 Nh6 Nc7 Rd8 h8B Ra5 Bg7 Kb3 Kd4 f4 Ke5 f3 Be3 Bg6 Bd3 f1B Be4 f2 Rh4 Bd3 Rf4 f1B Rf5 Qb5 Kf6 Bc4 Ke7 Qc6 Re5 Be8 Kf8 Bfe2 Rc1 a1N Rb1+ Kc3 Rc1 Ba2 Rb1 Nb3 Ra1 Na6 b8Q Bc4 Qa8 Nb8 b7 Kb2 Qa6 Kc3 Nf3 g1Q Qb6 Qe1 Ng1 Nd4 Qa6 Kb3 Qb6+ Nb5 Qa6 Qg6 Qe6 Nd6 Qf6 Na6 b8B Nb7 Qe7 Qc6 Qf6 Ka4 Nb5 Kb3 Bd6 Nb8 Nc7 Bf1 Re7 Ba6 Re5 Bc4 Nd4+
3k2R1/2qpQKR1/2BPpBN1/n1r5/1n2RNb1/bq2Q1q1/rB1P2b1/5R2 b - - 0 1 illegal: No possible last move
Qqbn3n/bP1RNr2/K1P1rn2/1Q2N1k1/3B2pp/4Bq2/RR1N4/1N3q2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 h4 f5 g4 g6 h5 Bd6 Bh3 Be7 hxg6 Bc5 g5 Bf8 Bg4 fxg4 Kd2 Ke7 Kd3 h5 Kc4 a5 e4 a4 b4 h4 g7 a3 g6 d6 b6 d3 Kb5 d2 c4 d5 c5 d4 c6 d3 b7 a2 e6 Kf6 e7 Ra6 e8R Nd7 b8B Ne7 g8N+ Kg5 g7 Ra7 e5 Kh5 e6 Ne5 Nf6+ Kg5 g8N Nf5 e7 Nh6 Qb3 Nef7 Rh2 Rh7 Nd7 Nh8 Be5 N6f7 Bd4 Rh6 Ne5 Re6 Qa4 Qc7 Rd8 Rb7+ Ka6 Qb8 e8Q Bc5 b5 Ba7 Rd6 Nd8 b6 Rc7+ b7 Rf7 Ba3 d1Q Rb2 d2 Ne7 Qb3 Qb5 d1N Rd7 Qf3 Bac5 Nc3 Qf8 Nd5 Be3+ Qf4 Bcd4 Nf6 Ngf3+ Kh5 Nfd2 Kg5 Bg1 Qe4 Qe8 Qf3 Bge3+ Qf4 Nec4+ Qe5 Bg1 Qf3 Rd5 Bd7 Nba3 Nh5 Rab1 a1Q Ra2 Nf6 Rbb2 Qaf1 Rd6 Rg7 Qg8 Ndf7 Qa8 Nd8 Nab1 Bc8 Rd7 Rf7 Bgf2 Bc5 Bg1 Qb8 Ne5 Ba7 Bge3+
B3n3/p1b1P1b1/2b5/3q2N1/1PkBnRBq/Rn1p2B1/2r1N1QQ/2rQK3 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 g4 g5 h3 f5 gxf5 g4 h4 Qg5 hxg5 exf4 b4 Ke7 e4 Kd6 c4 h5 g6 h4 b6 d3 b7 d2+ Kf2 h3 f6 h2 g7 g3+ Ke2 f3+ Kd3 g2 f7 f2 Ke2 Nf6 g8Q Na6 b8Q+ Nc7 Bb2 Bb7 Ra3 Bg7 Bd4 Bc6 Nf3 g1B Bg2 f1N c5+ Ke6 e5 Kd5 e6 Ne4 f8B Ne8 Bd6 Kc4 Bf4 d5 e7 Rh6 Qc7 Rc8 Bg3 Bf2 Rg1 h1Q Ng5 Qh4 Nc3 Be3 Bh1 Bf4 Rg2 Bd6 Rf2 Rh7 Rf4 Rh8 Qd7 Bc7 Qh3 Rh6 Qh2 Re6 Bf6 d4 Bf3 Ne3 Bg2 Nc2 Kf1 d3 Bd4 Na1 Ne2 Nb3 Bh1 Bd5 c6 Rg6 Qe1 d1Q Bg2 Qd2 Qd1 Qa2 Ke1 Rf6 Rg4 Rf2 Rf4 Bb6 c7 Ba5 Ng1 Rc2 Ne2 Rc1 Qf7 Bb6 Qg6 Bc6 Bf3 Rd8 c8B Bc7 Bb7 Rc8 Bg4 Rc2 Ra6 Qa5 Ba8 Qd5 Ra3 Rc1 Nf7 Bb7 Bh3 Bd8 Bgf2 Kb5 Bf5 R8c2 Qgg2 Bc7 Ng5 Kc4 Bg3 Bc6 Bg4
r7/1r5p/bbnR1R1P/1rP1r2Q/rRN1q1Q1/BB2N1K1/6Np/k5nR b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 d4 c5 a4 Ra6 axb5 Ra7 e4 Ra8 h5 cxd4 Qg4 f5 Qh4 gxh4 exf5 Qb6 Nh3 Qc7 Ng1 Qd8 f4 Kf7 Kf2 Kf6 c4 e5 g4 d5 c5 d3 h6 d4 a6 e4 b6 h3 a7 e3+ Kg3 e2 b7 e1R Nc3 h2 Nh3 d2 Bc4 d1R Ba3 d3 Bb3 Nd7 b8R d2 Rb4 Rb1 Nd1 Be7 Ne3 d1R Ra2 Rd3 Rd2 Qe8 Rd1 Rb8 a8N Ba6 Nb6 Rd4 Nbc4 Rb5 Rd2 Bd8 g5+ Ke7 g6 Kf6 g7 Ne7 g8Q Bb6 Rd1 Ne5 Qg4 N7c6 Qh5 Re4 Rd6+ Qe6 Qg4 Nf3 Qh5 Ra8 Qg4 Kf7 f6 Ng1 f5 Rb2 Nf4 Re5 Qe2 Ra1 Nfg2 Qd5 Qd1 Qe4 Qg4 Rbb1 Bb2 Ra4 Ba3 Kf8 f7 Ke7 f8R Rb2 Rd3 Rb1 Qh5 Rb2 f6+ Ke6 f7 Rb1 Rb8 Rb2 f8Q Rb1 Nf5 Rb2 Rf3 Kd5 Nfe3+ Kd4 Rd8+ Kc3 Rf6 Rb1 Rdd6 Rb2 Ba2 Rb3 Qg8 Rb2 Nd5+ Kc2 Bb3+ Kb1 Nde3 Ka1 Rf7 Rf2 Rf8 Rf7 Qgg4 Rb7 Rff6
rBRnN3/b2RP1B1/4r2N/1bqP3B/3p2Q1/k2Rnp2/1r1rR2K/1r3Q2 b - - 0 1 illegal: No possible last move
2Qb2r1/2PR3K/pkr1P3/3rB2N/b3N1Np/BR1NQ3/1nQ2q1r/4nr2 b - - 0 1 illegal: No possible last move
1n5R/bb6/3kRNbN/5q1n/2p4P/1p1BQr2/QB1Pr1NB/3nbBK1 b - - 0 1 legal: proof: g4 f5 b4 d5 e4 e5 exf5 h5 c3 d4 cxd4 hxg4 dxe5 a5 e6 axb4 a4 Ke7 f4 c5 Kf2 g5 f6+ Kd6 f5 b5 f7 b3 f6 b4 e7 b2 e8N+ Ke5 a5 b3 a6 c4 a7 Ne7 Qc2 Ng6 Nd6 Qd7 Nf5 Bb7 Nh3 g3+ Kg1 g4 Nh6 g2 Nc3 b1B Ra5+ Kd6 Bb2 Qf5 Re5 Nf4 Nd5 Be7 f8Q Nh5 Qe8 Rf8 f7 Bh4 Nf6 Bg3 Nf4 Be1 Qa4 Re8 Qa2 Re7 Qc3 Bd3 Rc5 Re2 Re5 Bde4 h3 Bb1 Qe3 B1e4 Kh2 g1N+ Ng2 Bd3 h4 Nh3 Rg1 Nf2 f8B+ Kc7 Bc5 Nd1 Bd6+ Kc6 Bc7 g3+ Kh1 Na6 Bd6 Rf8 a8B Nb8 Bc7 Qd7 Bd6 Bg6 Bc7 Rf2 Bd3 Re2 Rf1 Qf5 Kg1 Re8 Rf4 Rf2 Rd4 Rf3 Rd8 Re6 Rh8 Re8 Ba5 Kd6 Bf1 Ba6 Be4 Bb7 Bed3 Re6 Nf4 g2 Bc7+ Kc6 Kh2 g1B+ Kh1 Bgf2 Ng2 Re8 Rb5 Bg1 Bh2 Re4 Re5 Kd6 Qe2 Ba7 Qe3 Rff4 Kg1 Rf3 Qf2 Re2 Qb6+ Nc6 Qe3 Nb8 Re6#
r1bnk1N1/1r1nQ3/R1n1B1r1/2RK1Q2/1p2p3/4R1b1/P1B1Pq2/1N1N2Rn b - - 0 1 legal: proof: d4 d5 f4 g5 fxg5 a5 c4 Bf5 cxd5 Bc8 b4 axb4 g4 c5 dxc5 h6 g6 Ra6 g5 Rb6 g7 Ra6 g6 Ra8 Bg5 hxg5 Kd2 f5 Ke3 e5 h4 b5 c6 e4 Kd4 g4 h5 f4 d6 b3 h6 g3 h7 b4 c7 b2 Bh3 f3 Be6 f2 Qf1 g2 Rh3 Nc6+ Kd5 Qf6 Re3 Nh6 g8N Nf7 Nh3 g1R g7 Qf4 Ra3 Rg6 Re3 Bd7 c8R+ Nfd8 Rc7 Bc8 Ra7 Qf3 Ra6 Rb8 Qg1 f1N Qf2 Qg2 Qf5 Rb7 Nf2 Ng3 Nd1 Nh1 Rc3 Nf7 Re3 Qf2 d7+ Kd8 Nh6 Bd6 g8B Ke7 d8R Bg3 Rd7+ Ke8 Rc7 Nce5 Rc5 Nd8 Ng4 Nec6 Nf6+ Ke7 Bgf7 Re8 h8Q Reg8 Nd2 b1N Qh4 Na3 Nb1 Nc4 Be8 N4e5 B8d7 Na7 Ba4 Nd7 Bc2 Nac6 Qhg5 Rh8 Ng8+ Ke8 Nbc3 Rh7 Ra7 Nde5 Ra6 Ra7 Nb2 Rhc7 Rg1 Nd7 Nbd1 Ra8 Nb1 Rb7 Qe7+
b6n/NN1K3R/n1BP2k1/1r2r1p1/1RQBpQNP/2nn4/3r1R2/1b1q2R1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 g3 h5 Qe2 e6 Qg4 h4 Qd1 h3 Bd3 Qd6 Be2 Be7 Bf1 Bh4 gxh4 Qxh2 Ke2 Kf7 Ke3 a5 Kd4 g5 Kc5 a4 d4 e3 b4 a3 f4 a2 d6 e2 b6 e1R b5 c6 b7 e5 d5 Qd2 f5 h2 d7 Na6+ Kd6 c5 b8R c4 d8N+ Kg7 b6 c3 f6+ Kh6 f7 c2 f8R Rh7 b7 Kg6 Na3 Ne7 Bg2 Bf5 Qg4 Qd1 Bb2 c1N Qc4 Bb1 Kd7 Ne2 Rf2 Nc3 Nh3 Re2 d6 Rd2 Rg1 h1B Bc6 Rf7 Nb5 Rf5 Na7 Bg2 Rc8 Rb8 Rc7 Bd5 Rg4 e4 Rg1 Bd3 Rb1 Re5 Ba1 Bc2 Rb5 Bb1 Bb2 a1N Rb4 Nb3 Ba1 Rc8 b8Q Nc1 Nb7 Nd3 Bb2 Rh8 Qf8 Rg8 Qf4 Rb8 Nd8 Rb5 Nb7 Kh6 Ba1 Ng6 Bb2 Nh8 Ba1 Ne2 Bd4 Kh5 Kc8 Kh6 Rh7+ Kg6 Kd7 Nc3 Re2 Ra5 Nf2 Rc5 Ng4 Rb5 Rf2 Rb6 Ba4 Rb5 Nc5 Ba8 Nb7 Ra5 Bc6 Rac5 Rgf1 Rb5 Rg1
R4B2/n3R2N/PQ3KNN/B1q3Q1/1n2b1rp/b6Q/1kPQ1pb1/2rbr3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 dxc5 e5 fxe5 Qf6 Bg5 Qb6 Bc1 Qd8 gxh5 g6 h4 Nf6 h6 Ng8 h7 Qa5 Bh6 Qb6 Bc1 Qd8 h5 Nc6 h6 Rb8 Bh3 Ra8 Bg4 Nb8 Bh5 gxh5 Kd2 Ke7 Ke3 Ke6 Kd4 d5 e4 f5 a4 b5 c6 b3 c7 f4 a5 b4 Bd2 f3 Nc3 f2 Nce2 b2 Nf3 b1B Ng3 b3 Nf5 h4 Re1 Bb7 c8Q+ Qd7 Qc7 b2 Qb6+ Qd6 Ng5+ Kd7 Bc3 Nf6 Qd2 Rg8 h8N Ba2 h7 b1R Nh6 Rc1 e6+ Ke7 Re2 Qc5+ Ke5 Nc6+ Kf5 Kd6 e7 d4+ e5+ Kd5 e8Q Kc4 Qc8 d3 Ng6 Na7 h8B Bb3 Bg7 Nd5 e6 Nb4+ Kf6 Bg2 e7 Be4 Qd7 Re8 Qh3 Ba4 Ra3 Bac6 Nh7 Ba8 Qg5 d2 Ra4 d1B Be1 Rd8 e8Q Bab7 Qee5 Re8 Qed6 Bg2 Re6 Bbe4 Qd7 Bd6 Bf8 Re7 Bd2 Re8 Re7 Rg7 Be3 Kc3 Bd2+ Kb2 Be1 Bf4 Qd2 Bd6 Ke6 Rf7 Ra1 Rf4 Ra3 Rg4 Kf6 Bgf3 Ra1 Bg2 Qdf4 Bb7 Rd7 Qd4+ Kf5 Nc6 Qc5 Na6 Qb6+ Qb4 Bd2 Re1 Kf6 Qb5 Ra4 Ba3 Re7 Ba8 Bb4 Qc4 Qd2 Qc5 Re8 Bb7 Ra8 Na7 Bc3+ Ka2 Re4 Bc6 Bb4 Kb2 Re5 Bce4 Re7 Nb8 a6 Nbc6 Ba5+ Nb4 Kg7 Qb5 Kf7 Qc5 Kf6
1K1Q1bb1/1n2BpNB/r3k3/1r1R1RP1/p4P2/Rq2n1nN/r3Q3/2BnB3 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 axb5 e5 dxe5 g4 b4 Bg7 bxc5 Bf8 Qd3 h5 Qf3 gxf3 g4 Na6 g5 Nb8 e3 Bg7 Ra3 Qc7 Rd3 Bh6 Rd2 Qd8 Rg2 Bf8 Rg4 hxg4 Kf2 Ke7 c4 a5 h4 d5 e6 d4 b6 a4 b7 d3 c6 d2 c7 d1R h5 Rd5 h6 Qe8 h7 Rd7 c5 Ra5 c6 Rd3 e4 Bd7 c8R Na6 b8B Re3 c7 Rc3 e5 Rc6 Ke3 f2 Kd4 g3 Rh3 g2 Ra3 Bg7 Bd3 f1N Nd2 Rc3 Nc4 Ng3 Nh3 g1N Rd8 Bf6 c8R Nc5 Kd5 Nh1 Nd6 Nb7+ Rc5 Ng3 Bf5 Qf8 Ne8 Rb3 Ng7 Nh6 Bc2 Bc8 Kc6 N1e2 Kc7 Ra6 Rdd5 Ng4 Ba7 Qe8 Kb8 Qb5 Bd3 Re8 h8B Ne3 Bh7 Nc3 Bb6 Rd8 Ba5 Ncd1 Be1 Qb4 Ra5 Rb2 Rac5 Qb3 Ra5 Ra2 Rac5 Rdd6 Rb5 Kd8 e7+ Kd7 Rbc5 Rb6 Ra5 Rb5 e6+ Kc6 e8Q+ Bd7 Ka8 Be7 Qd8 Bf8 e7 Bf5 Kb8 Re6 Rd3 Kc5 e8Q Ra6 Rd5+ Kc4 Ne6 Bg6 Bf6 Be4 Be7 Bc2 Bg6 Bb1 Ng7 Bc2 Bh5 Bh7 Bg6 Bg8 Bh7 Rg6 Rd7 Nd5 Bed2 Rc5 Be1 Ra6 Bd6 Kd4 Qe2 N5e3 Rb5 Kd5 Be7+ Rd6 Nh5 Ke6 Ra5 Rb6 Rd2 Rcc6 Rf5 Rb5 Rdd5 Ra6 Ng7+
1R4r1/1BrB1p2/PR1bQ1p1/1Rnbn1KP/1Rr5/3bNN1N/4k3/2Q2r1q b - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 f4 e5 fxe5 Be6 g4 Bc8 b4 axb4 Ba3 bxa3 gxh5 Kd7 Bg2 Ke7 Bf1 Ke8 Kf2 Kd7 Kg3 b5 Kf4 c5 e4 a2 h4 c4 d4 g6 e6+ Kd6 a5 c3 e7 b4 e8B c2 e5+ Ke7 h6 c1R a6 b3 h5 b2 h7 Rc7 d6+ Ke6 d7 Kd5 e6 Rc1 e7 Nh6 Na3 b1B Nc2 Ng4 Nf3 Qa5 d8N Qd2+ Ne3+ Kd6 d5 Kc5 d6 Qc3 d7 Bb7 Rh4 Rg8 h8R Qd3 Kg5 Ne5 Rb4 Qd5 Bg2 Rc4 Qc1 Bd3 Rab1 a1R Rb6 Bc6 R1b4 Ra7 Bh1 Rc7 Ne6+ Kd6 d8R+ Nbd7 Nf4 Kc5 Nh3 Qe4 Qb1 Bd5 Qc1 Rb1 Rdb8 Ra1 Nd2 Kd4 R4b5 Nc5 Bd7 Rb1 e8Q Bd6 Qe6 Qf3 Rb4 Qd1 Bg2 Qh1 Nf3+ Ke4 Qc2 Rf1 Qc1 Bc2 R8b7 Kd3 R6b5 Ke2 R7b6 Rg7 Rhb8 Rg8 Nd2 Bb1 Be4 Bc2 Nf3 Bd3 Qf5 Be6 Bb7 Bd5 Qe6
R7/1qN3P1/4pQQp/1NR2bNn/q1r2br1/1n1B2Q1/r3k1PK/rB3N2 b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 e4 Bh6 d4 Nc6 d5 Nb8 Qg4 Nd7 Be3 Bg7 Bd4 exd4 e5 Nb8 e6 Bh6 e7 Bf8 Qe2 Kd7 Qe6+ fxe6 f4 c5 Kf2 a5 Kg3 a4 b4 h6 g6 d3 f5 c4 b6 a3 b5 c3 b7 c2 b6 c1Q f6 a2 f7 d2 g7 d1R Nc3 Rd4 Rh5 Ra5 Nb5 Nf6 Bd3 Ng8 Ne2 Rc4 Kh2 Raa4 Ng3 Qe8 Nf1 Na6 b8Q Qb1 b7 Nf6 Rf5 Nh5 Re5 Qd8 Rf5 Qa5 e8B+ Kd8 d7 Ke7 d8N Nc5 Qf4 Nb3 b8N Ba6 Qg3 Qb2 Re5 Kf6 d6 Rg8 d7 Bd6 Rg5 Bf4 Rc5 Bb7 Na6 Be4 Nac7 Bf5 Bb1 Qa7 Bd3 Qd4 Bb1 Qb7 Bd3 Rab4 Bb1 Qd1 Bd3 Qg4 f8Q+ Kg5 Bg6 Rh8 Qf7 Re8 Re1 a1R Re2 Rh8 Ra2 Rf8 Ra7 Rba4 Qe8 R4a2 Ra8 Rf6 Bh7 Rg6 Nf7+ Kf6 Ng5 Qd1 Nf7 Rg4 Ng5 Qc2 Nd5+ Ke5 d8Q Qd1 Qg6 Qc2 Na7 Kd4 Nc7+ Kc3 Nc6 Qd1 Nd4 Qc2 Qdf6 Qd1 Ne3 Kd2 Bb1 Qc2 Ndb5 Ke2 Nf1 Qd2 Bg8 Qa5 Bf7 Qa4 Be8 Bc1 Bc6 Be3 Bce4 Bf4 Bed3+
B1RN4/1n2Kp1B/rQqn4/1pn3r1/1bN1NPPb/1Q2Q3/k4N1q/nR6 b - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 g5 a4 c6 axb5 g4 b6 Ke7 b5 cxb5 Qd2 Ke8 Qd5 Bg7 Qd1 Bf8 f3 g3 Be3 Bg7 Bf2 gxf2+ Kd2 Bb7 g4 Be4 h3 Bf5 g5 Bg4 hxg4 Bf8 Kd3 Ke7 Kd4 Ke6 e4 h5 c4 d5 b7 a5 c5 h4 f4 h3 g6 a4 g7 a3 c6 h2 c7 a2 c8B+ Nd7 b8Q Qf6 Nd2 Ra6 Qf3 Nh6 g8N Bb4 Bg2 f1N Nc4 Ng3 Ne7 Rg8 Qb3 Rg5 Rc1 a1B+ Rc3 Qh8 Nh3 Bb2 Rg1 h1Q Nc6 Ba1 Bb7 Nc5 Ba8 Nb7 Rb1 Bb2 Nf2 Nhf5+ Kd3 Nfd6 Kd4 Q8h2 Nd8+ Ke7 e6 Qc1 e5 Nge4 Nd3 Nec5 Be4 B2a3 Rc2 Be1 Bg6 Bh4 Bh7 Bb4 Nf2 Qch1 Qa7 Qc1 Rc3 Qc2 Qb6 Qg6 Ke3 d4+ Kf3 d3 Rcc1 Ke8 e7 Kd7 e8N d2 e6+ Ke7 Nf6 d1N N6e4 Ne3 Ned2 Nc2 Nde4 Na1 Rc2 Ke8 e7 Kd7 Ke3 Qe6 Rcc1 Qd5 Rc3 Qc6 Kd4 Rg8 Ke5 Rg6 Qa7 Rg5+ Kf6 Kc7 Na3 Kd7 e8Q+ Kc7 Qb8+ Kb6 Qee6 Ka5 Ke7 Ra7 Rcc1 Ra6 Qe3 Ka4 Nc4 Bc3 Qa7 Bb4 Qb6 Ncb3 Na5 Ka3 Rc5 Ka2 Nc4 Qd5 Rc8 Qc6 Qd5 N3c5 Qdd3 Ra7 Qc3 Ra6 Qb3+
R2r2BK/2P4p/1nQN1B2/3Pp1qN/2rq2RN/q2N1b2/1qQ1n3/1b1R1k2 b - - 0 1 legal: proof: b4 b5 e4 c5 h4 g5 a4 gxh4 c3 f5 exf5 c4 axb5 d5 Ra2 Bh6 Ra4 Be3 Ra1 Bc5 bxc5 d4 Bb2 dxc3 Ba3 Qd7 Bc1 Qd8 Ke2 Kd7 Ke3 e5 Ke4 a5 f4 c2 d4 c3 g4 h3 b6 Kc6 b7 h2 g5 a4 g6 a3 f6 a2 f7 Qc7 f8N Na6 b8Q Qa5 g7 Bb7 Kf5 Kd5 c6 Qb4 c7 Qe7 Nh3 Qd6 Na3 Nf6 g8N Nb4 Qe8 Rd8 Ng6 Bc6 Nb5 Nd3 Rg1 Kc4 Rg4 h1B Nh4 Nd7 Nf2 Nb6 Nf6 Qa3 Nh5 Bcf3 Kf6 Rf8+ Kg7 Bhg2 Bd2 c1Q f5 c2 f6 Qcb2 f7 c1Q Bg5 Bh1 Rb1 a1Q Bf6 Qe3 Bg2 Nf4 Nd3 Ne2 Nd6+ Kc3 Qda4 Kd2 Qec6 Be4 Bh3 Bhf3 d5 Bg6 Rc1 Qg5 Rd1+ Ke3 Qac2 Qd4 Rf4 Qb1 Be6 Qbb2 Nb4 Kf2 Rg4 Rh8 f8R Rb8 Rf7 Rhd8 Rf8 Ra8 Bf7 Ra4 Bg8 Bf5+ Kh8 Bd3 Na2 Rc4 Nc1 Bg6 Qb3 Bb1 Qc2 Rd7 Ra8 Rd8 Rd2 Ke1 Nd3+ Kf1 Rd1#
QNk4Q/1prnQ2q/1q1r1p1B/1Rn4b/B2NP3/1R6/n3P3/2b1RKnQ b - - 0 1 legal: proof: b4 e5 c4 a5 g4 h5 gxh5 d5 cxd5 e4 f3 axb4 a3 bxa3 fxe4 Bg4 Nf3 Bf5 Ng1 Bc8 d4 Kd7 h4 c5 h6 g5 d6 g4 d5 c4 h5 g3 h7 f6 h6 a2 Bh3+ Ke8 Nc3 g2 Rb1 a1Q Nf3 Ne7 Rb3 Ra6 Nb5 c3 Na7 c2 Nc6 Ng6 Nfd4 Ne5 Bf5 Rg8 h8R Rg7 h7 Be6 Rh5 Kd7 Rg8 Be7 h8Q Kc8 Bg5 c1N Bh3 Na2 d7+ Kc7 Kf2 Qc3 Qh1 Ba3 Bc1 Qc4 Bh6 Nd3+ Kg1 Qb4 Rf5 Qde7 d6+ Kb6 Rc5 Bf7 d8Q+ Qc7 d7 Bh5 Qc8 Bc1 d8Q Rd7 Ra5 Nc5 Bf5 Rd6 Bd7 Qb5 Qf8 Ra8 Be8 Qh7 Qe7 Ra6 Bd7 Ra8 Qcf8 Kc7 Rgg3 Ra6 Rgd3 Ra8 Rd1 Qb6 Kf2 g1N Kf1 Ne6 Re5 Ra5 Re1 Rc5 Na7 Rc4 Ba4+ Nd7 Nac6 Rc2 Qa8 Rc4 Nb8 Rc5 Bf8 Kc8 Rd5 Rc7 Rdb5 Nec5 Bh6+
qB4b1/p1n1K2k/1bBp1n2/1BqP4/3R1n1N/RP2NQN1/n3Nr1Q/6r1 b - - 0 1 legal: proof: h4 f5 e4 e5 f4 b5 h5 b4 h6 b3 axb3 exf4 exf5 c5 Ra6 c4 Ra4 c3 bxc3 gxh6 Ra3 h5 Ra1 h4 Kf2 Kf7 Kf3 Kg7 Kg4 f3 d4 h6 f6+ Kh7 Kf5 h5 g4 h3 f7 h2 g5 h4 d5 h3 c4 f2 c5 Na6 c4 Qe8 c6 Bg7 c5 Bf6 f8N+ Kg7 g6 Bb2 c7 Rb8 c6 Nf6 Qf3 Rb7 Bb5 f1Q Bf4 Rg8 Ne2 Qf2 Rd1 h1N Ra3 h2 Nd2 Qc5 Ne4 Bd4 N4g3 Nf2 Be5 Be3 Rd4 h1N Bd6 Kh6 g7 N2e4 Ng6 Kh7 Nh4 Nc3 Bf4 Rf8 g8N Nf2 Nh6 Na2 Ng4 Nh3 Be5 Bf2 Ne3 Nf4 Kg5 Be1 Kf5 Ba5 Bd6 Bb6 Kg5 Rb8 Kf5 Bb7 c8B Nc7 Be5 Ba6 Bb7 Rf7 Kg5 Qh8 Kf5 Rg8 Ba8 Bc8 Bb7 Nce6 Bb8 d6 c7 Bd7 c8Q Be8 Nh1 Nc7 B7c6 Rg1 Nhg3 Bd7+ Kg5 Be6 Qb7 Rf8 Qc8 Bg8 Qh3 Rf7 Qh2 Qg7+ Kf5 Qf8 Kg5 Qe8 Kf5 Qc8+ Kg5 Qb7 Kf5 Qa8 Qfg2 Ne4+ Kg4 Ng6 Qgh1 Rf2 Qf3 Nf4 Kf5 Ng5 Kf6 Ne4+ Ke7 Nf6 Qhh1 Rd1 Qhg2 Rg1 Qh2
1Rr2bq1/1Q3bk1/4B1r1/NQQ5/1bnB2PP/1Bpp1KB1/rq4R1/N6q b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 exd4 a4 h6 axb5 h5 f3 hxg4 Qb3 g5 Qd3 g3 Qd1 g2 Kf2 g4 Ra2 g3+ Ke1 Nc6 Ra6 Ne5 Ra1 Ng4 fxg4 Qh4 Be3 Qg5 Bc1 Qd8 h4 c5 e4 a5 Ke2 f5 b4 Kf7 b6 a4 e5 f4 b7 a3 b8Q a2 e6+ Kg6 e7 c4 e8B+ Kh6 b5 c3 d6 Be7 b6 Ra3 d7 Ra6 b7 Bb4 Nf3 g1B Na3 g2 Rb1 a1R Qa4 Rc6 Nd2 Ne7 Bf7 Qg8 d8Q Kg7 Qda5 Ng6 Ndc4 Ra2+ Kf3 Be6 Q4b5 d3 Be2 Bf8 Bd1 Bgc5 Be3 g1Q Rh2 Qh1+ Rg2 Bb4 Bb3 Rb6 Nc2 Ne5+ Kf2 f3 Bd4 Bd5 Be6 Qh2 Ke3 f2 Na1 f1Q Qaa7 Rc6 Na5 Qfh1 Qac5 Rc8 Qa8 Rh6 b8B Rg6 Bc7 Bc4 Qab7 Bd5 Rg3 Qb2 Rg2 Bc6 Kf4 Be8 Bb8+ Bf7 Bd6 Kh7 Ke4 Nc4 Kf3 Kh6 Bg3 Rb8 Q7a6 Rc8 Qb8 Qbc1 Ba4 Ba3 Rb4 Qc2 Bb3 Qb2 Qbc7 Kh7 Rb8 Bb4 Qab5 Kh6 Qcb7 Kh7 Bdf2 Kg7 Bd4+
4rb1b/3B4/3nR2p/1qB1P3/Q1P2RRN/2bq1p1K/2NQr1BR/r1k4q b - - 0 1 illegal: No possible last move, all moves rejected
Qr1Q1r2/krN3pp/qq4b1/3Bn1bq/3P2RN/NR2Q3/6KP/4BNb1 b - - 0 1 illegal: No possible last move
2bB1B1R/1R1P3K/1P1p1b1B/5rRq/Q1p1NR1k/n3n3/1bQqN3/1n2q3 b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 h5 gxh5 a5 d4 exd4 c4 d6 Ra3 Ra7 Ra1 Rb7 c5 Ra7 Nf3 Ra8 Ng1 Na6 Qc2 Bf5 Bh6 Qe7 Nc3 Rd8 Bf4 Nb8 Qd1 Bc8 Bc1 Rd7 Nb1 Qd8 e4 f5 c6 Be7 cxd7+ Kf7 e5 Bf8 Bd3 Ke7 Be4 fxe4 Ke2 c5 h4 g5 b4 c4 f4 g4 h6 g3 e6 Kf6 b6 g2 h7 d3+ Ke3 a4 h5 a3 b5 d2 h6 a2 e7 Nc6 e8Q Nce7 f5 Kg5 f6 Nc6 b7 Qa5 b8R Nce7 f7 Bg7 f8B Bf6 Qa4 d1Q b6 Qh5 Ne2 g1N Bd2 Nc6 Rb7 Nge7 Nbc3 Nb4 Rf1 a1B Rf4 Nf3 Rhh4 Rg8 h8R Bb2 h7 Qd5 Bc1 Nd2 Rh3 Nb1 Rg3+ Qg4 Qg6+ Kh4 Qf5 Rg5 Qg6 Rf5 Rg2 Kh3 Rg1 Qh5 Rg5 Nec6 Bd2 Ne5 Bc1 Qa5 Kd4 e3 Ke4 Ng4 Bd2 Kh4 Bc1 Rc5 Bd2 Nd5 Kf5 Na3 Ne4 Qb4 Rg8 Qc3 h8B Qd4 Bc1 Qd2 Bhg7 Rb5 Rh8 Rc5 Bh6 Nc3+ Ke6 Ncb1 Kf7 Ra5 Kg8 Rf5 Kh7 Qe1 N2c3 e2 Be3 Qc1 Bd2 e1Q Ne2 Be7 Bc3 Qcd2 Bcg7 Bef6 Be7 Kh3 Bgf8 Ne3 Bd8 Re5 N4c3 Rd5 Qgc2 Rf5 Rf3+ Kh4 Ne4 Qd3 Rf2 Qdd2 Rf4+
2B1brbQ/2r5/KQ1rp1r1/Q1RbNRrN/5N2/1Pk1P1p1/2n4q/1B1Q4 b - - 0 1 illegal: No possible last move
3Br3/1pbNb2b/PBQB4/3Qq2k/p1Q2rPr/1R4bb/4N3/nQK4R b - - 0 1 illegal: No possible last move, all moves rejected
1Qb4n/1Pn2n1Q/1N1p1r1Q/Q2n2P1/4N2K/qrn2B1R/1k4Rp/RB3q2 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Bg7 h4 Kf7 f4 Ba6 f5 Nc6 Bf4 gxf4 g5 Ke8 g6 Bh6 Nh3 Bc8 Ng1 Bg5 hxg5 Nb8 Kf2 h5 b4 e5 c4 a5 c5 d3 b6 d6 b7 Kd7 f7 Kc6 f8Q Kd5 c6 Kd4 b5 e4 f6 d2 b6 f3 Kg3 h4+ Kf4 f2 c7 h3 Kg3 h2 g7 a4 f7 a3 Qb3 d1N Qb5 a2 Nc3 e3 Nd5 e2 Qc6 e1N Qc2 Rh6 Qf5 Ra3+ Bd3 f1Q Nh3 Na6 b8Q Ne7 g8Q Rf6 b7 Nc3 Qgh7 Ng6 Rg1 Nh8 Bb1 Nd3 Nb6 Ne5 Qfh6 Rb3 f8R Nef7 Kh4 Qe8 Qb5 Qe3 Nf2 Qec1 Qa5 Qa3 Nd7 Kc4 Ne4 Kd4 Rg2 Kc4 Bc2 Kd4 Bd1 Kd3 Be2+ Kc2 Nb6 Kb2 Rg8 Bd7 c8B Nc7 Re8 Bh3 Bf5 Bg4 Rd1 a1N Bf3+ Nc2 Ra1 Bh3 Bg6 Bc8 Re5 Ne2 Rc5 Ne3 Rc3 Ned5 Nd2 Ne5 Bb1 Nef7 Re3 Nec3 Ne4+ Kc1 Be2 Kb2 Rh3 Rf5 Bg4+ Rf2 Be2 Rf6 Bf3+
NbB5/1p2Bb2/2kbb1R1/Q5P1/1nNqR3/KP4qR/1rQbpnR1/7N b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 g5 a4 f5 exf5 Nc6 h4 gxh4 b3 Ra6 Bxa6 Nb4 Bf1 Bd7 Nc3 Bxa4 Nb1 Bd7 Ne2 Be6 Ng1 Bc8 f4 Kd7 d4 h5 Kd2 e5 Kc3 c5 Kb2 c4 g4 a4 f6 h3 f7 e4 g5 e3 f5 h2 f6 h4 d6 c3+ Ka3 c2 d5 e2 Nd2 h3 Nc4 Bh6 f8R Rh7 f7 Nf6 Re8 Ng4 f8R Nf2 Rg8 Bf8 Re4 Qf6 Qd3 Qd4 Rg6 Rh6 Bb2 c1B Qc2 Bd2 Bg2 Be7 Bf3 Rh8 Rd1 Rd8 Bg4+ Ke8 Ba1 Be6 Re1 Ra8 d7+ Kd8 Bc3 Kc7 d6+ Kc6 d8Q Ra6 d7 Bd6 Qa5 Ra7 Nf3 Bb8 Rhg1 h1Q Nh2 Qf3 Nf1 h2 Ng3 h1B Rg2 Qfe3 Reg1 Ra6 Rh2 Bg2 Nh1 Qg3 Rh3 Ra7 Re3 Bd5 Rg2 Bd6 Re5 Bf7 Re4 Bde6 d8N+ Kd7 Kb2 a3+ Ka1 a2 Kb2 a1B+ Ka3 Qh8 Bg7 Bae5 Bf6 Bb8 Bf5 Bed6 Be7 Qd4 Bg4 Bf5 Ne6 Kc6 Nc7 B5e6 Na8 Bd5 Bc8 Bde6 Ka4 Qb6 Ka3 Qbe3 Kb2 Qc5 Qd8 Qd4+ Qc3 Ra1 Qa5 Rb1+ Ka3 Rb2 Qc2
2bkq1bB/1NR3Bn/2B2N2/4n1Bb/1PQ4K/Rpq2q2/prN1P3/Q5b1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b3 Be7 b4 Bf8 a3 cxb4 Qc2 b5 Qc4 b3 Qc2 b2 Qd1 b4 Qb3 a5 Qc2 b3 Qd1 Ra6 Bg2 Rb6 Bf1 Rb4 axb4 Bd6 Ra2 Be7 Ra1 Bf8 Kf2 g5 d4 f5 h4 f3 Kg3 f2 d6 a4 h6 g4 d5 a3 h7 Nf6 h5 f4+ Kh4 f3 h6 g3 Bf4 g2 Nd2 b1B Ne4 Nc6 Bg5 Ne5 d7+ Ke7 Qc1 Qe8 Qc4 Kd8 Rh2 Rg8 h8B Bc5 h7 Bd4 Bg7 a2 h8B Bd3 Rc1 Rf8 Rc3 Rf7 Rh1 Re7 Rc2 Nh7 Nf6 Bg6 Rh2 Bc5 Rh3 Bh5 Rc3 Kc7 d8N Rd7 Nb7 Rd6 Rc2 Be6 Rc3 Bg8 Rc1 Rc6 d6+ Kc8 d7+ Kc7 Na5 Kd8 Rc2 Rd6 Rg3 Rd2 Nb7+ Ke7 Rc1 Rb2 Rg4 Ba7 Rd4 Bb6 Rd6 Bd4 Ra6 Be3 Nh3 g1Q Bg2 f1B Ra3 f2 Nf4 Bb6 Bc6 Bh3 Nd3 f1Q Rc3 Qe3 Ne1 Qff3 Rc1 Qc3 Nc2 Bhe6 d8Q+ Kf7 Na1 Bg1 Qd1 Ke7 Nc2 Bd7 Qe1 Bc8 Rd1 Bhg4 Rd8 Bh5 Qa1 Bh3 Rda8 B3g4 R8a7 Bc8 Na5+ Kd8 Rb7 Bg6 Rc7 Bh5 Nb7+
2Q5/4N3/4r3/KQb1kBBq/1p1r1P1q/2r1b1NB/Ppb1RnBr/3RR3 b - - 0 1 legal: proof: c4 f5 b4 g5 b5 d5 cxd5 f4 b6 f3 exf3 axb6 Ke2 b5 Ke1 b4 h4 g4 h5 g3 Ke2 gxf2 g4 Nd7 g5 Ne5 Rh4 Nf6 Rh1 Ng6 hxg6 Ng8 Kd3 Kd7 Kc4 Kd6 Kb5 e5 d4 c5 g7 h5 g6 c4 Bh3 f1R Bd7 h4 Bh3 e4 Qb3 c3 Bg5 e3 Bg2 h3 Ne2 h2 Ng3 c2 Nc3 e2 Re1 Nf6 g8B c1B g7 Ra4 Be6 Ng4 g8B Nf2 Bh7 Be3 Beh3 Bf5 Qc4 Bd3 B7f5 b3 Rd1 e1R Rd2 b2 Re2 Qc8 Kb6 Rh6 Qb5 Bc2 Rg1 Rb4 Ka5 Qe8 Rh1 Qh5 Rg1 Kc7 Rh1 Bc5 d6+ Kb8 d5 Rd4 d7 Kc7 Rg1 Kd6 d8Q+ Ke5 d6 h1Q d7 Rc1 Qc8 Re6 d8R Qh4 Qa4 b5 Nd5 b4 Ne7 Rfd1 Qb5 R1d2 Rge1 Qh5 Bhg4 Q1h4 B4h3 Bd3 Rd7 Rc3 Rd6 Bc2 Rc1 Rd1 Rd7 Rf1 Rce1 Rh1 Rd6 Rh2 Rd8 Rg4 Rdd1 Rd4 f4+
1n1q4/2n1kR2/2q1b1Qp/pb2KB1B/4R2P/Nr6/3n1qPB/B2QNq1N b - - 0 1 legal: proof: b4 c5 c4 g5 d4 b5 f4 gxf4 a4 cxb4 axb5 a6 b6 Ra7 c5 Ra8 c6 Bh6 Nh3 Bg7 Ng1 Bf8 e3 d5 Qb3 a5 Ke2 Bg7 Qd1 Be5 Ke1 Bd6 Bb2 Bc5 dxc5 d4 Ba3 d3 Bc1 Ra7 Ra2 Rd7 Ra1 Rd4 exd4 Bf5 Ra4 Bh3 Ra1 Bc8 Kd2 f5 h4 e5 d5 h6 d6 b3 Kc3 e4 Kd4 f3 b7 e3 d7+ Kf7 c7 e2 c6 e1Q Na3 f2 Bb2 f4 Be2 f1Q Ke5 d2 Nf3 Qg3 Ne1 Qg6 Bh5 Qf2 Rf1 f3 Ra2 Ne7 Ba1 b2 Qc2 Na6 b8B d1Q Qe4 b1B Re2 Bd3 Qg4 Bc4 Re4 Bb5 Qg5 Nd5 Qg4 Qg8 d8Q Be6 c8N Ndc7 Ne7 Qc1 Qd4 Qd8 Nf5 Rg8 Ng3 Ke7 Qd1 Rh8 Ba7 Nb8 Nh1 Qf7 Qg7 Rg8 Qh7 Rg3 Qg6 Rh3 Be3 Qcc2 Bf4 Qff8 Rg1 Qf1 Bh2 f2 Qg8 Rb3 Qg6 Nd5 c7 Qc6 c8B Nc7 Rd4 Qd3 Rc4 f1N Re4 Nd2 Rf1 Qff3 Rf2 Qf1 Bd7 Qe3 Rf4 Qef2 Rf8 Bd5 Bf5 Be6 Rf7+
1nNn4/r2Bn2n/1N4pp/2Q2P1R/1KNq1Qq1/1R5B/1rP3k1/bNQq4 b - - 0 1 illegal: No possible last move
qB2q3/2n3R1/NnRp2P1/3N1p1Q/1QPkrbB1/bb4NQ/2Q5/1K2bn2 b - - 0 1 legal: proof: f4 b5 d4 c5 a4 cxd4 axb5 f6 g4 e6 f5 exf5 g5 Bc5 Bd2 Ba3 Bc1 Bf8 h4 a5 gxf6 g5 Bf4 g4 Be3 Ra6 Bd2 Re6 Bc1 Re7 Bh3 Rg7 Bf1 Rg5 hxg5 Bc5 Rh6 Bd6 Rh1 Bf8 Kd2 Kf7 b4 Ke6 e4 Ke5 b6 h5 g6 g3 b7 h4 b5 d3 b6 a4 f7 a3 Ne2 h3 Nbc3 a2 Nd5 g2 Ng3 g1B Qh5 h2 Be2 Kd4 e5 Na6 b8N Nc7 e6 Ne7 b7 Qe8 Na6 Bf2 b8Q Be1+ Kd1 d2 Qb3 Bb7 Bg4 Nc8 e7 Nb6 c4 Bc6 Kc2 d1N Ba3 Ba4 Bd6 Ne3+ Kc1 Rg8 Qc2 Bb3 Qh3 Bh6 f8Q Bf4 Qfh6 Rf8 Q6h5 Nf1+ Kb2 Rf6 Rb1 Re6 Ra1 Qf8 e8Q Re4 Qb8 Qe8 Rb1 Bg5 Bf4 a1B+ Kc1 Bac3 Rb2 Bb4 Kb1 Ba3 Qb7 Nc8 Qb4 Nb6 Bd6 Bf4 Ra2 Ne6 Bb8 d6 Rb2 Nc7 Ra2 Bb2 Ra5 Ba3 Rc5 Nd7 Rc6 Nb6 Rg1 h1Q Rg2 Re7 Re2 Qg2 Re6 Qf3 Rf6 Re4 Rf7 Qc3 Qa4 Qa5 Qb4 Qa4 Rg7 Qa5 Nc5 Qa8 Na6
1B1NNB1R/r2b2R1/2PRb1BK/2k3p1/1Q1qnq2/Pp3R1b/5q2/Q1qn4 b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 a5 g4 axb4 e5 f6 exf6 Kf7 Ke2 Ke6 f7 Kd6 Ke1 Kc6 f4 b5 h4 g6 h5 Ba6 h6 Kb7 f5 Bg7 hxg7 Kc6 g5 Bc8 Rh2 Ra6 Rh3 Kb7 Rh1 Rf6 gxf6 Kc6 Kf2 h5 Kf3 d5 Kf4 e5+ Kg5 b3 f8B d3 c4 d2 c5 d4 a3 e4 Bg2 b2 Rh3 h4 Rb3 h3 Qg4 d1Q Rf3 e3 Nc3 b1B Ne4 h2 Bb2 h1B Qh5 e2 Qh2 e1Q Rd3 b4 Ne2 b3 Qe5 Qf2 Rf3 d3 Nd6 d2 Ne8 Na6 Nf4 Bd7 Ne6 Qb8 f7 Nb4 f6 Bf5 Nd8+ Kb5 c6+ Nd5 Qe1 Rh7 Be5 Nc3 Bc7 Qc2 Rd1 Qc1 Bh3 Bfe6 Bf5 Kc4 Bg3 Qb4 Bb8 Bg2 Bc2 Bgh3 Qh1 Ne7 g8R Nf5 Rg7 Nd6 Qe1 Kc5 Qe5+ Nd5 Qa1 Ne3 Bb1 Rh4 Bd3 Rf4 Kh6 g5 Bg6 Rd4 Re1 d1Q Re2 Rg4 Rd2 Qf4 Rd3 Qdd2 Rd4 Nd1 Rd5+ Kc4 Rdd3 Ne4 Rd6 Qde3 Bf5 Nd2 Bg6 Bf5 Be7 Kc5 f8R Qfe4 Qb2 Bfe6 Rh8 Qd5 Qa1 Ra4 Bf7 Ra7 Bg6 Qf4 f7 Qdd4 f8Q Ne4 Qf6 Qd5 Bf8 Qd3 Qfc3+ Qc4 Qe1 Qcd4 Qb4+
B3qB2/bqQ2N1p/P2b1r1N/3B1bb1/1q1RnR1R/4P2Q/4p2R/1r1k3K b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 e3 Kd3 e2 Kc2 Bh3 Kb2 Bg4 Kc2 Bc8 f3 e1B Rh3 e5 Bb2 e4 Kc1 e3 Rh4 e2 Kc2 Nc6 Rh1 Na5 Ba3 Nc4 Bc1 Ne3+ dxe3 Bf5+ Kb3 Bg4 Kc2 Bc8 Kd3 Kd7 Ke4 Kd6 g4 Kc5 a4 Kc4 a5 c5 f4 b5 Kf3 b3 Kg2 b4 f5 b2 a6 b3 f6 Ne7 d6 Bg7 g6 Qg8 d7 Bf2 d8Q Bh4 f7 Bh6 f8R Bf6 g5 Kb4 g7 c4 g6 c3 Ra4+ Kb5 Rhh4 c2 Nd2 b1Q Nc4 b2 Kh1 Bd4 Qc7 Bf5 Bg2 Nc8 Qf1 Rb8 Nf3 Nd6 Nh2 Ne4 Ne5 Bg5 Nf7 Ba7 Rc4 Rb7 Bd2 c1B Bb4 Ka4 Ng4 Kb3 Ngh6 Bd2 Bd6 Bb4 Bf3 Qe1 Bc5 Qc3 Qh3 Kc2 Bg2 Kd1 Be7 Nd2 Bc5 Rb5 Ba8 b1Q Rd8 Bc8 Rdd4 Bd8 Ne5 Qe8 g8B Bf5 Rdf4 Ne4 Bgd5 Rf8 g7 Rb6 Be7 Bd6 g8R Rf7 Rg3 Qd2 Bf8 Bg5 Rgg4 Rf6 Rg2 Qbb5 Nef7 Qbd7 Qb7 Rb1 Rh2 Qb4 Qc8 Qc6 Qc7 Qcb7 Rd4+
N1q1nN2/2Pp4/2rR2N1/4n2N/r2qqr2/Q2R1kqP/7p/B1QKBbR1 b - - 0 1 illegal: No possible last move, all moves rejected
b1N2KN1/n1pB1bP1/kRpQ2bB/1R3Q2/B2q2b1/2Qr1n2/3P4/3B2nq b - - 0 1 legal: proof: f4 e5 fxe5 f5 c4 a5 g4 Ke7 b4 axb4 c5 Ke8 c6 dxc6 Nf3 b5 Ng1 Ra3 Qa4 f4 Qd1 Rh3 Ba3 Rh5 Bc1 Rf5 gxf5 Qe7 Nh3 Qg5 Ng1 Qd8 h4 g5 Qb3 g4 Qc2 Be7 Qd1 Bg5 hxg5 Qd3 Na3 Qd7 Nb1 Qd8 Kf2 Kd7 e4 h5 a4 f3 Kg3 h4+ Kf4 g3 g6 f2 a5 b3 e6+ Kd6 f6 Kc5 Kg5 h3 a6 Kb6 e5 g2 a7 h2 a8Q b4 e7 b2 e8B b3 e6 Bb7 e7 Qd3 f7 Bc8 f8Q Nh6 Kf6 Qf3+ Kg7 Be6 Qa3 Qd3 Qc2 Bh3 Bd7 Bf5 e8B Bh3 Qf5 Ng8 Qd6 Ne7 Ne2 g1N Nd4 Nc8 Qc3 Na7 Nb5 Bg4 Ra5 Rh3 Kf8 Qd4 g7 Re3 Bh5 Rd3 Be2 f1B Bd1 Ne2 Rg1 h1Q Rg3 Ng1 Rh3 Nc8 Na7 Bfe2 Rb5+ Ka6 Qc4 Bf1 Nc3 b1B Ne4 b2 Qc3 Ba2 Ba4 b1B Nf6 Bf7 Ng8 Bfe2 Ba3 Bf1 Bc5 Bfe2 Rb3 Bf1 Nb5 Na7 Re3 Bc2 Re5 Bfh3 Qd5 Bf1 Nd6 Bb1 Nc8 Bfh3 Be8 Nd7+ Ke7 Qb4 Qf2 Bd1 Nb6 Re3 Qd6 Bbg6 Bd4 Rf3 Be3 Qd4 Bh6 Rd3 Rd5 Bhe6 Qf5 Ne5 Kf8 Bc8 Bd7 Bb7 Nc8 Ba8 Rb7 Bf3 Rdb5 Bd1 Bf3 Be2 Bd5 Bd1 Bdb3 Bg4 Bd1 Nef3 R7b6+
2K3RN/N1p1bP2/6Q1/1RqBk1RP/b1bR4/2rrB1q1/p1n1BQ1b/q7 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 Kf2 f5 Qe1 h5 Qd1 f4 Ke1 Nc6 Qc2 Nce7 Qf5 Ba6 Qg5 Nf5 gxf5 Bc8 Qg4 hxg4 Kf2 Kd7 h4 Kd6 b4 a5 d4 g5 e4 a4 h5 a3 e5+ Ke7 e6 Kd6 f6 a2 b6 Bb7 f7 Bh6 e7 Qe8 b5 Ra3 Nh3 Ra6 Na3 Ra8 Be3 Bc8 b7 Qc6 b8R Be6 e8B Bf8 b6 Qc3 b7 Bg7 Be2 Qc2 Rag1 Qg6 Bc6 Nh6 Rg8 Bd7 b8Q Nf5 Qb2 Bf6 Bb7 Ba4 Nb5+ Ke7 d6+ Ke6 d7 Be7 d8R g3+ Ke1 f2+ Kd2 f1B Kd3 g2 Ke4 g4 Bd5+ Kf6 Na7 f3 Nf4 g3 Rb8 f2 Rh4 Rh6 Rb5 Rd8 Qd2 Qg5 Ng6 Rd6 Rg4 Rd8 Rh1 g1B Nh8 g2 Rhh4 Bh2 Qc2 g1Q Qb1 Bh3 Qe1 f1Q Qf2 Bb3 Bdc4 Qd1 d5 Ba4 d6 Qa1 Kd5 Bf1 Kc6 Qg3 Bd5 Ke5 Kb7 Nd4 d7 Nc2 Rd4 Rc6 Rhg4 Rc8 d8Q Rc3 Qe8 Rd8 Qc6 Qf5 Qg6 Rd7 Bd1 Bc4 Be2 Rd6 Bh6 Qg5 Kc8 Qgc1 Bd2 Qa3 Be3 Qc5 Rb7 Rf6 Rb5 Rf3 Bc1 Rfd3 Bd2 Qa3 Be3 Qc5 Rg5+
k2Rb3/rp2N2R/1b3qQp/2R3Q1/n1KP1b1n/5Q1q/PQ2B3/Bq3bN1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 d5 cxd5 f5 exf5 g5 Ke2 Be6 Ke1 Bc8 g4 Nd7 f4 gxf4 h4 Ra5 g5 Ra6 h5 Rg6 hxg6 Nb8 Ke2 Kd7 Kd3 c5 d6 e5 g7 b3 f6 b2 g6 e4+ Kc4 h6 d4 e3 f7 f3 Nd2 b1Q Qc2 f2 Ba3 e2 Qb3 e1Q Be2 f1B Rh5 Qeh4 Ne4 Qdf6 Nh3 Na6 Qb6 Ne7 g8Q Nf5 Ng1 Qh3 g7 Nh4 Qb2 Kc6 d7 Kc7 d8Q+ Kb8 Nd6 Ka8 Nf5 Be7 Qde8 Bd8 f8Q Bd7 Qg6 Be8 Ne7 Bb6 Qd5 Rg8 Qdg5 Rh8 Bb4 Rg8 Bc3 Rh8 Kd5 c4 g8R Nc5 Rg7 Na4 Rh7 Qc2 Re1 Qb1 Qb5 Rg8 Ba1 c3 Qb2 c2 Kc4 c1B Qff7 Be3 Qfd5 Bf4 Qf3 Bc6 Rc1 Rd8 Rc3 Be8 Re3 Rd5 Re5 Ra5 Rd5 Ra7 Rd8+ Bb8 Qgg2 Qg4 Rc5 Qh3 Rdd5 Bh2 Q2g5 Bf4 Rd8+
1Kn5/PNQ1kN2/B2r1q2/2Qn3Q/1R4n1/Q2Rb2r/1Br2Ppp/3Nq1n1 b - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Nc6 b4 axb4 g4 Qd6 h4 Qh2 f6 Bf5 gxf5 Nb8 Nc3 Qxh4 Nb1 Qh2 Ke2 g5 Kd3 b5 Ke4 e5 d4 c5 a4 h5 d6 g4 Kd5 b3 a5 b4 a6 c4 a7 g3 Ne2 c3 Bb2 e4 Qc2 g2 Kc5 h4 Kb6 e3 Kc7 h3 d5 Qe5 Ng3 h2 Ra4 e2 Kc8 e1Q Ba6 Bh6 Qd1 c2 Ne4 c1N Nbc3 Be3 Ng5 Rh3 Nf7 Nh6 Qh5 Ng4 Nd1 Ne2 d7+ Kf8 d8N Nc6+ Kb7 Ne7 d6 Ng1 d7 Rc8 Ra3 Rc7+ Kb8 Nc8 Nb7 Qe6 Ra4 Rc2 d8Q+ Qe8 Ba1 b2 Qc7 b1R Bb2 b3 Rb4 Qa4 Ne5 Qd7 f7 Ke7 f6+ Ke6 f8Q Qg7 f7 Qf6 Bd4 b2 Qfc5 Ra1 f8Q b1N Bb2 Nc3 Nf7 Nd5 Rb3 Ra5 Rd3 Rb5 Qa3 Rb6 Qfc5 Rd6 Rb3 Ne2 Rf1 Ng1 Rb4 Qd2 Re1 Qdc3 Re2 Qe1 Rd2 Rb6 Rd3 Rd6 Q7a5 Ke7 Qac7+
2Qq2r1/p2Rn3/3qk1Pp/4bQRK/rqP5/QN3BQ1/2rnqB2/4R2N b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kf3 e5 c4 d5 b4 d3 g6+ Ke7 f6+ Ke6 g5 d2 Kg4 d4 b6 e4 b5 h6 b7 e3 f7 e2 b6 e1Q g7 d3 Qa4 d1Q+ Ne2 f3 Ng3 d2 Qa3 f2+ Be2 f1Q Bf3 Bb4 f8Q Be7 Kh5 Na6 b8Q Bd6 b7 Ne7 g8R Nc5 g6 Qd3 Rg7 Q3e2 Rg1 Ne4 Nh1 Rg8 Rg5 Be5 Qc7 Qd6 b8Q Qd8 Qb5 Rb8 Qf4 Rb6 Qg3 Ra6 Bb2 Ra4 Bd4 Qg1 Bb6 Qc5 Rh7 Qcd6 Bf2 Qb3 Rg7 d1R Nd2 Qc3 Nb3 Rd2 Re1 Rc2 Rh7 Nd2 Qc8+ Kf6 Qbd7 Qcb4 Qdh3 Nc6 Rd7 Ne7 Qhh4 Ke6 Qhf4 Qbb8 Qf8 Qbb4 Qf5+
3N2Q1/1bB5/4Bp1R/P1prbn1P/NBbn4/3Bkbn1/2b2Q1K/RQ2r3 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 c5 d5 h5 gxh5 d6 Qd4 Qb6 Qd1 Qc6 dxc6 d5 cxd5 Ra6 d6 Ra8 Kf2 b5 Kg2 g5 e4 b3 a4 f3+ Kg3 g4 h4 b2 d7+ Ke7 d8Q+ Ke6 e5 Kf5 h6 Ke4 c7 f2 h5 b4 e6 b3 a5 Bb7 c8Q Bd6+ Bf4 Be5 h7 Nh6 e7 Nc6 e8B Nf5+ Kh2 Ncd4 Bd7 Re8 h8B Ra7 Bg3 Ke3 Bd3 f1B Nc3 b1B Be6 b2 Qf6 Bc2 Na4 b1B Nh3 Ra6 Qb8 Rd6 Ng5 Rd5 Rg1 Ba2 Qbd8 Bg2 Qb1 Bc4 Qa8 Re7 Qg8 Bf3 Rg2 Bcd1 Rb2 Bc2 Rb6 Re8 Nh3 Re7 Nf4 Re8 Be1 Re7 Bb4 g3+ Kg1 g2 Kh2 g1N Qh4 Bb8 Be5 Nge2 Bc7 Neg3 Bc8 Kf2 Ne6 Ke3 Nd8 Ree5 Rh6 f6 Be6 Re4 Bb6 Be5 Qf4+ Kf2 Qh4 Re1 Bc7 Ke3 Qh3 Ng7 Qf1 N7f5 Qf2+
r1N2B1r/1nr2R2/1p1r1pKQ/k3P3/2rP2Qr/Q2n4/1q2Rb2/N1N2Q1B b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 Qd7 b4 axb4 f5 Qd8 f6 exf6 g4 Ke7 g5 Bg4 g6 Kd7 gxf7 g5 h3 Bf5 Ba3 g4 Bb2 g3 Bc1 Bg4 hxg4 Bc5 Bb2 Be7 Bc1 Bf8 a4 c5 e4 Kc7 Ke2 Kb6 Kd3 h5 d6 b3 a5+ Kb5 e5 b2 Ke4+ c4 Kf5 g2 d4 h4 d7 h3 a6 h2 a7 Na6 g5 Bh6 f8Q Nb8 g6 Bf4 g7 Be3 Nd2 b1R Ra2 Qb6 d8Q Bf2 Ne2 g1R Bg2 c3 Qc8 c2 Kg6 Na6 Qg4 Nc5 Qf1 Nd3 Nb3 Nh6 g8Q Nf5 Ba3 c1R Na1 Ka5 Qb3 Rc7 Qh6 Nd6 Nc1 Qb4 Bf3 Rg3 Rg1 h1R Re2 Rh4 Bh1 Rb2 Rg2 Rbc2 Rh2 R2c4 Rh3 Rad8 a8N Qd2 Rh2 Qb2 Nb6 Rdd7 Nc8 b6 Bc5 Nb7 Bf8 Rd6 Qg2 Nb4 Qd2 Kb5 Qa2 R4h7 Qf1 Ra3 Qb3 Ra8 Qdg5 Ka5 Rh3 Rhf7 Rh7 Nd3 Rg7 Rh4 Qh6 Rfd7 Rg8 Rh7 Rg7 Rh8 Rd7 Ndc5 Rf7 Nd3 Qa3+
1br1q1n1/1P2rkr1/2pBR3/NBPQ4/1B1bB3/Rr5r/pN1Q4/3K1R1r b - - 0 1 legal: proof: f4 b5 a4 f5 e4 d6 e5 dxe5 axb5 exf4 g4 f3 Ne2 g5 Ng1 f4 h3 Bf5 gxf5 Nc6 h4 g4 Bg2 Ne5 Bh3 Nf7 Bf1 Ng5 hxg5 Bg7 Bg2 Bh6 Bf1 Bf8 c4 h5 d4 e5 b4 a5 f6 h4 b6 h3 d5 a4 b7 e4 b8R c6 d6 h2 g6 g3 f7+ Kd7 b5 Ke6 c5 e3 b6 e2 g7 a3 b7 g2 d7 Ra5 Nd2 Rb5 Nh3 g1B Nf2 Rb3 Nc4 Rh3 Qd2 Bd6 f8B Qe8 d8Q Kf7 Nd3 Bd4 Na5 a2 Ra8 B6e5 Nb2 Bb8 Rg1 h1R Rg6 Rg1 Re6 Rg5 Qd5 Rg2 Qe3 f2+ Kd2 e1R Bb5 f3 Bd6 Re2+ Kd1 Rgg3 Bd2 f1R+ Be1 f2 Qd2 Rfh1 Ra6 f1R Rb1 Ne7 g8B+ Kf8 Qh6+ Bg7 Rg6 Rgg2 Nac4 Rg4 Ra3 Qc8 Na5 Ree3 Qhg5 Bd4 Kc2 Ke8 Kc1 Rf8 Bh7 Ng8 Kc2 Qe6 Bb4 Kf7 Qh6 Ree1 Qd2 Rc8 Rh6 Re5 Be4 Rg7 Rf1+ Bf2 Q5d3 Qe8 Kd1 Re7 Re6 R1h2 Bf4 Rh1 Qd5 Bd4 Bd6+
3Qn3/n1b4P/B1BprB1k/N4Q2/3Rbnnr/2NR2P1/2Q4p/1KQ1br2 b - - 0 1 legal: proof: d4 b5 f4 g5 a4 e5 axb5 exf4 Bd2 c5 Bc1 cxd4 Nf3 h5 Ng1 g4 Qd3 h4 Qd1 g3 hxg3 Ba3 Qd2 Bd6 Qd1 Bf8 Na3 h3 Nb1 h2 Ra2 Qh4 Ra1 Qh3 gxh3 Ke7 Nc3 Kd8 Nb1 Ke8 Kd2 f5 b4 Kf7 e4 Kg6 c4 a5 Kc2 d6 h4 a4 h5+ Kh6 e5 a3 e6 a2 b6 Nd7 c5 Ngf6 b5 Nb8 c6 Ba6 e7 Ne8 c7 Nc6 c8Q Bb7 Ne2 Na7 Nd2 f3 Nc3 f4 Bb2 f2 Nb3 f3 Na5 d3+ Kc1 Bg7 Qf5 Bd4 Qc2 Be4 b7 Bb6 b8Q Bc7 b6 Rh7 Rb1 a1B b7 Rh8 Be2 f1N Qbc8 f2 b8Q Ne3 Rd1 f1R Qd8 Nd5 Qbc8 Bb8 Qc6 Bc7 Qc5 Nf4 Qg1 Ng7 e8B Rb8 Bc6 Ne8 Na4 Rb4 Bf6 Bc3 Rb3 Be1 Kb1 d2 Ba6 Rb5 Nc3 Re5 Rb4 Re6 Rd4 Rh7 Rc1 d1N Qh1 Ne3 Rcd1 Ng4 R1d3 Ne5 Qg1 Rg7 Qe3 Rg4 Qec1 Rh4 Qh3 Kh7 h6 Kg6 h7 Kh6 Qf5 Ng4 Qe7 Bd2 Qd7 Be1 Qd8
2B1r3/k2n2Rr/Q1b3r1/pb4b1/1b1rP2Q/3q2pB/3NP3/B1NRB1RK b - - 0 1 illegal: No possible last move
br2r2B/p4N2/K5B1/1QRN1R1p/2q2br1/P1Pn1b2/3Q2Qr/QBkb4 b - - 0 1 legal: proof: f4 d5 Nc3 c5 Nh3 e5 Ng1 c4 Nb1 c3 bxc3 d4 Nf3 d3 cxd3 Bf5 Ng1 Bc8 h4 exf4 g3 g5 Ba3 Nd7 Bb2 Ndf6 Bc1 Ne4 Rh3 g4 Rh1 Ng5 hxg5 fxg3 e4 Kd7 Ke2 Ke6 g6 Ke5 g7 Kf4 a3 f5 d4 b5 Kd3 b4 Kc4 b3 Kb5 b2 d5 h6 d6 g2 d4+ Kg3 d7 Kf2 e5 g3 e6 f4 e7 f3 e8B Qc7 d8Q Bb7 d5 Ne7 g8Q Nc6 d6 Ne5 d7 Nd3 Bf4 Bd6 Nd2 b1B Qdg5 Bc2 d8Q Rb8 Bg6 Ba8+ Ka6 Qc4+ Qb5 h5 Ne2 g1R Rh4 g2 Be5 Ke3 Nf4 f2 Nf3 Bb3 Ng5 Rh1 Nf7 g1R Rg4 Bc2 Rg5 Rh2 Be2 f1B Nd5+ Kf2 Bg4 Be2 B4f5 Rg4 Qh1 Bf3 Rf1+ Ke2 Bd4 Rh6 Bh8 Kd2 Qg1 Bcd1 Qd7 Nf2 Bb1 Kc1 Qh1 Nd3 Qdd8 Be4 Rff5 Bf4 Qg2 Rh7 Qge8 Bef3 Qe1 Rg7 Qd6 Bd2 Qf4 Rgg8 Qd4 Rgc8 Qdf2 Be3 Qa2 Rd8 Qa1 Re8 Nb4 Bfc6 Rc5 Bd5 Rf5 Bf3 Nd5 Bf4 Qed2+
4R2B/nk2p1K1/rb1n4/Q2Q2NQ/Bp2b1n1/n3bN1r/1P1QP1BR/5b2 b - - 0 1 legal: proof: c4 b5 f4 d5 d4 g5 g4 c5 fxg5 h5 a3 hxg4 a4 Qb6 cxd5 cxd4 Qc2 b4 Qd1 Qb5 axb5 Rh3 Qa4 Rh6 Qd1 Rh8 Kd2 Kd7 Kd3 Kc7 Ke4 a5 h4 f6 d6+ Kb6 h5 d3 h6 d2 g6 g3 h7 g2 d7 a4 Kf5 a3 g7 a2 Kg6 f5 d8Q+ Kb7 b6 f4 Nh3 g1B Ng5 f3 Rh2 f2 Qd5+ Nc6 Bg2 Nf6 g8B f1B Qa4 d1N Bd2 Ne8 Qaa5 Bd4 Bc3 Ra6 Nd2 Bh6 Ndf3 Nf2 Be6 Bc5 Bd7 Nd6 Qd2 Na7 Ba4 Ng4 Bd4 Kb8 b7 Bb6 Rc1 a1N Rc2 Rf8 h8Q Rf4 Rc4 Nc2 Qd8 Rf7 Bh8 Na3 Qg8 Rh7 Qgd5 Bd7 Rf4 Bb5 Rf8+ Kc7 Re8 Bc6 Nh3 Be3 Nhg5 Rh3 b8Q+ Kd7 Qa8 Kc7 Kg7 Bb7 Qf7 Be4 Qd8+ Kb7 Qh5 Ndb5 Q8d4 Nd6 Qdd5+
B2b1BQ1/1r2q1rr/q3k2P/1RBnqp2/P4R1N/1R4q1/qpN1B3/Q6K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Nh3 exf4 Ng1 h4 h3 g5 Bb2 Bf5 Ba3 Bg6 Bc1 Nc6 Bg2 Bh5 Bf1 Ne5 gxh5 g4 Na3 g3 Nb1 Ng4 hxg4 Bc5 Rh2 Bd6 Rh1 Bf8 d4 Kd7 a4 b5 e4 f5 h6 c5 d6 f3 g5 b3 d5 b4 g6 c4 e5 b2 g7 h3 e6+ Ke8 e7 Kf7 e8Q+ Kf6 d7 h2 d6 b3 Ra3 g2 Kf2 c3 Be2 c2 Be3 c1Q Bc5 Ne7 g8B Qc4 Bd5 Ra7 Ba8 Nd5 Qe1 Qa5 d8R Rhh7 d7 Be7 Rb8 Bd8 Qh8+ Ke6 Rb5 Rb7 Kg3 f2 Nf3 f1R Nh4 g1Q+ Kh3 Qe3+ Kg2 Qa6 Rg1 Qe5 Kh1 Qcf4 Qc1 Rd1 Rf1 Qg3 Bf8 Rd4 Rf4 Rc4 Qf1 Rcc7 Qd1 Bg5 d8B Rcg7 Bb6 Bd8 Nc3 b1Q Na2 b2 Bbc5 Qa1 Nb4 Qa2 Qb1 Qf6 Nc2 Qe7 Rg4 Qe5 Rab3 Qg3 Qa1 Qe5 Kg2 h1Q+ Kf2 Qc1 Kg2 Qcf4 Kh1 Qfg5 Rf4 Qg3 Qg8+
1kqr1R2/1Brp1q1P/KN1B4/Rn5n/1Q6/Q3BB2/1qNP2pq/r1q3Q1 b - - 0 1 legal: proof: f4 c5 a4 b5 g4 e5 g5 exf4 b4 cxb4 axb5 Qb6 Bb2 Qa5 Bc1 Qd8 h3 h5 Bg2 Bb7 Bb2 Bf3 Ba3 Bg4 Bf1 g6 Bc1 Bh6 gxh6 g5 Ra5 Be6 Ra1 g4 Rh2 g3 Rh1 Bg4 hxg4 Ke7 Bb2 Kf8 Bc1 Ke8 e4 f5 Ke2 a5 Kd3 g2 Kc4 a4 b6 f3 Kb5 a3 c4 b3 b7 f2 g5 f4 c5 h4 c6 f3 g6 b2 h7 a2 c7 h3 c8B h2 e5 Nh6 e6 Nc6 b8B Nb4 g7 Ra4 g8Q+ Ke7 Ba7 Kd6 e7 Kc7 e8Q Na6 Nh3 Rc4 Qe4 Ng4 Na3 Nf6 Bb7 Qc8 Qf8 Nh5 Be2 f1Q Nc2 f2 Be3 Kb8 Qa3 Rc7 Qeb4 b1Q Nf4 Qb2 Nd5 Rd8 Nb6 Qg1 Bef3 f1Q+ Ka5 Qc4 Qf1 Qf7 Qd1 Qe1 Rf1 h1Q Rf2 Qh4 Kb5 Qeh1 Qg1 Q4h2 Ka5 Rc3 Kb5 Nc7+ Ka5 Nb5 Ka6 Rc7 Rf1 Qb1 Bb2 Qc1 Be5 Qb2 Bd6 Qc1 Rb1 a1R Rb3 Qe5 Rd3 Qeb2 Rd5 Qh2 Rg5 Na7 Ra5 Nb5 Bc6 Qe7 Rf8 Qf7 Bf3
r3R1Q1/1p3r2/1q3rBr/k1bKQ1PP/1Br1NBq1/1R3q1b/5p1N/Q2Q4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Bh3 exf4 Bg2 Na6 Bf1 Nb8 Bh3 g5 Bg2 Nd7 Bf1 Nh6 Bg2 Nf6 Bf1 h4 h3 Nh5 gxh5 g4 Ba3 g3 Bc1 Ng4 hxg4 Bg7 Bb2 Bh6 Bc1 Bf8 a4 Kd7 d4 c5 Kd2 Kc7 Kd3 Kb6 Kc4 f5 e4 h3 a5+ Ka6 e5 g2 g5 f3 e6 h2 d6 b3 d7 f2 e7 f4 e8Q b2 d5 f3 d6 Rb8 Bd3 f1Q Kd5+ c4 Bg6 c3 Ra3 c2 Rb3 Qf6 d8Q Rh6 d7 Ra8 Qe5 Bc5 Nc3 b1R Bf4 c1R Qg8 Qb6 d8B Bh3 Ne4 Rc4 Be7 Qe2 Bd6 f2 Be7 Qg4 Nf3 g1R Bf8 Rg2 Re1 h1Q Nh2 Rg3 Bd6 Qhf3 Be7 Bd4 Ba3 Rbc1 Ree3 Rc6 Re2 Rf6 Ree3 Bc5 Re2 Ka7 a6 Rc4 Ree3 Qb4 Re1 Kb6 a7 Ka5 Re2 Qb6 Re1 Raf8 Ree3 R8f7 a8Q+ Qa6 Qab8 Rg1 Qea1 Re1 Qbe8 Re2 Qee5 Ra2 Rb6 Qa7 Re6 Qa6 Rb3 Qb6 Re8 Ka6 Bb2 Ra5 Ba3 Raa4 Re3 Kb5 Rd3 Ra8 Rb3+ Ka5 Bb4+
5N2/P3rN1k/q1BQ4/1b1NRpB1/1P2R2K/3NrR1Q/p2q3r/b2q2bb b - - 0 1 legal: proof: h4 d5 f4 b5 c4 g5 cxd5 gxh4 f5 b4 a3 b3 f6 exf6 Kf2 f5 Ke1 f4 Rh2 a5 Nf3 a4 Rh1 Nc6 Ng1 Nf6 Rh3 Nd7 Rh1 Nb6 Nc3 Nc4 Nb1 Nb4 axb4 a3 Nh3 a2 Ng1 Na3 bxa3 Ra5 Nf3 Ra6 Ng1 Ra8 Kf2 f5 g4 Kf7 d4 Kg8 e4 h5 g5 c5 a4 h3 d6 b2 d7 h4 a5 f3 a6 c4 a7 h2 e5 h3 Kg3 c3 d5 c2 g6 f2 d6 Rh7 e6 Rf7 g7 Rf6 e7 Kh7 e8R Qe7 d8N Kg6 g8Q+ Bg7 d7 Qe2 Kh4 Re6 Qd6 Qd2 Ne2 Ba6 Qh8 Bb5 Nbc3 b1Q Bg2 f1Q Nf7 Bd4 d8N Bg1 Bc6 Qfd1 Qde5 Re7 Nd5 Qb2 Qc7 Qa3 Ne6 Qa6 Qd6 Rb8 Qc3 Kh7 N2f4 Rd8 Nd3 Ra8 Bb2 c1B Qa3 Rc8 Bf6 Bb2 Bg5 Bh8 Rc1 Ba1 Rc4 Rcc7 Re4 Rb7 Ned8 Re5 Ne6 Re7 Rg4 Re3 Rg3 Bf2 Re1 Bg1 Rf3 h1R Re2 Rh2 Qc3 Rf2 Qa3 h2 Nf8+ Kg8 Qc3 h1B Re1 Rc7 Re5 Re7 Qc4 Kg7 Qg4 Rh2+ Qh3 Kg8 Re2 Kg7 Rg2 Kg8 Rg4 Kg7 Rge4 Kg8 Ng6 Kh7 Nf8+
1qBQ2q1/B2NbRpP/7q/b5Np/Pr1q1NBK/n7/b7/1R1bQk1N b - - 0 1 illegal: No proof kernel
KQb1B3/1n3NbB/1qn2pR1/P3R1Qb/3p3B/1PR5/1n1B4/Nn1b2kb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 d4 exf4 b3 c5 b4 cxd4 Nh3 b5 Bb2 g5 Bg2 a4 Bf1 Ra5 bxa5 b4 Ng1 b3 Bc1 b2 Bd2 Rh6 Be3 Rb6 Bc1 Rb3 axb3 Qb6 Qd3 Qf6 Qd1 Qd8 Kd2 d3 Kc3 Ke7 Kc4 Kf6 Kb5 Kf5 c4 Ke4 h4 d5 h6 f3 c5 f2 h7 g4 h8B d4 c6 g3 h5 d2 h6 Ke3 h7 a3 c7 g2 Kb6 a2 Ka7 Na6 Ka8 Bh3+ c8R Ne7 Nf3 g1N Na3 b1B Be5 f6 h8Q Bg7 Ng5 Nf3 Nf7 Nc5 Rg1 Qb6 Rg2 Nb7 Rc3+ Bd3 Qb8 Bc8 Rb1 a1N Nc2+ Ke4 e3 Ne1 Qh5 Nc6 Rg4+ Kf3 Bg3 Bc4 Bd3 Kg2 Bh7 f1B Rg6 Nd3 Qg5 Be2 Rb2 d1B Ra2 Na7 e4 Bh5 e5 Bd5 e6 Nc6 e7 Kg1 e8B Bh1 Rb2 Bdg4 Rb1 Nb2 Be3+ Kg2 Re1 Bd1 Re2+ Kf1 Bd2 Kg1 Na3 Nc2 Re5 Ne1 Nc2 Nf3 Bdf4 Nd2 Na1 Nb1 Bc1 Nc5 Bd2 Nb7 Bh4+
B6r/BnB1R2p/qnn1r3/1N1R1kB1/n1P1p2Q/n1P4N/Q3q1nQ/6K1 b - - 0 1 legal: proof: e4 f5 b4 fxe4 f4 a5 d3 axb4 g3 c5 f5 c4 dxc4 g6 h3 g5 Bd2 g4 Bg5 Bh6 Bc1 Bf4 gxf4 g3 Be2 b6 Qd5 Bb7 Qd3 Bd5 Qd1 Bf7 Bd3 Bh5 Bf1 Bg4 hxg4 Kf8 Bd3 Kf7 Bf1 Ke8 a4 Kf7 g5 d5 c3 e5 a5 g2 Kf2 b5 a6 d4 a7 d3 g6+ Kf6 g7 b3 Nh3 g1Q+ Ke1 b2 Qh5 d2+ Ke2 d1N Ra2 b4 Bg2 e3 Ra5 b3 Rd5 Qe8 Na3 b1N Nb5 Ne7 g8Q b2 Qg3 Nc8 Qh2 Nb6 Be4 Qg7 Kf1 Qh6 Kg1 e2 Bd2 e1N Qh4+ Qg5+ Bg2 Nc6 Be3 Rb8 a8Q Nd2 Qa2 b1N Bd4 Nb2 Bf2 Ke7 f6+ Ke6 f7 Ne4 f8B Na3 Bh6 Qgg6 Bg5 Nc5 Be3 N2a4 f5+ Kf7 f6 Ke6 f7 Kf5 f8B Nb7 Bf3 Ng2 Bd6 Qe7 Bc7 Rbe8 Kf2 Qee6 Re1 Qh5 Kf1 Qc8 Kf2 Re6 Kg1 Qa8 Bc5 Qa6 Re3 Na8 Ba7 N8b6 Rd7 Qe8 Re7 Qh5 Rd3 Qg4 Rdd7 Qe4 Rd1 Qe2 Rd5 Nbd8 Rd4 Nb8 Bb7 e4 Rd2 Nbc6 Ba8 Nb7 Rd5+
Qqn1Rb1N/k3p2q/N2P2p1/1Pn1b2B/N5b1/2NQB3/4b1Qn/1RK3n1 b - - 0 1 legal: proof: e4 d5 c4 dxc4 g4 b5 a4 f5 axb5 fxe4 f4 a5 g5 Ra6 f5 Rf6 gxf6 Bd7 Ra2 Be6 Ra1 Bc8 h4 g6 h5 Nh6 Qb3 Rg8 Qa4 Rg7 Qd1 Ng8 h6 Bd7 hxg7 h5 Nf3 Be6 Ng1 Bc8 d4 Kd7 Kd2 c5 b4 Kc7 d5 Kb7 d6 a4 b6 e3+ Kc2 a3 b5 h4 f7 a2 f6 e2 Bh3 e1N+ Kb2 c3+ Ka3 c2 Kb2 c4 Bg2+ Nf3 Rh2 h3 Qd3 Nh6 g8N Nd7 Nc3 Ng4 Be3 c1N Nh6 Nb3 Nge2 Nbc5 Na4 c3+ Kc1 c2 Rb1 a1B Nec3 Qe8 Bf1 Ng1 Be2 Qd8 Rh1 Nh2 Bh5 Kb8 b7 Ka7 b8N Nb6 Na6 Bg4 Ng8 Qb8 Nh6 Nhf3 Rh2 Nc8 Rf2 h2 Rf1 Bg7 f8Q h1B Nf7 Nh2 Nh8 Bhf3 f7 Be2 Qg8 Be5 f8Q Bg7 Qf2 Bf8 Nd1 Be5 Qg2 Bh6 Rf8 Bhg7 Re8 Bf8 Kd2 c1Q+ Ke1 Qb2 Ndc3 Qb3 Kd2 Qf7 Kc1 Qg7 Q8d5 Qh7 Qa8+
n5qb/p3BBq1/5NN1/5P2/K4bRB/P4bp1/1NB1Qq1R/n1kQ1bq1 b - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 f4 c5 f5 Na6 f6 dxc4 b4 Qd4 bxc5 Qd8 h3 b5 Kf2 g5 Ke1 h5 Qb3 Rb8 Qd1 Rb7 Nf3 Rd7 Ng1 Rd5 h4 Rf5 gxf5 g4 Rh3 Rh7 Rh2 Rg7 Rh1 Rg5 hxg5 Qa5 Be2 Qc7 Bf1 Qd8 d4 Kf7 Kd2 e5 Kc3 e3 d5 e2 d6 e1Q+ Qd2 e4 a3 e3 d7 h4 c6 b4+ Kc2 h3 c7 c3 Kb3 e2 Nf3 c2 Qd1 h2 Ka4 g3 Qd2 b3 Qc3 b2 Kb5 Bg7 Nbd2 b1Q+ Qb2 Ne7 Ra2 Nc5 Nc4 Bh8 Nh4 Qc3 Ng6 e1Q Bd3 Qg8 d8Q Nb3 Ka4 Ba6 c8B Qf2 Qd4 Nd5 Be6+ Ke8 Rd1 h1B Bf7+ Kd7 Bf4 c1B Qe2 Kc6 Bc2 Bg2 Nb2 Na1 Rf1 Bc4 Qdd1 Kc5 Bc7 Qe5 Bd8 Bf4 Rh1 Bf1 Rh4 Nc7 Rg4 Qe7 Ne5 Ba6 g6 Na8 g7 Bb7 Ng6 Bf3 Bcb3 Qh7 g8N Qg7 Bc2 Qef8 Bc4 Qc1 f7 Qb1 Nf6 Qfg8 Ne8 Qc1 Bh4 Qce3 Nf6 Qg1 Qc1 Kd4 f8B Kc3 Bf7 Qef2 Qcd1 Qgh2 Be4 Bc7 Qee1+ Qd2 Nd3 Qg1 Be7 Bf4 Qe3 Qe1 Rh2 Qef2 Qee2 Q7f8 Nde5 Qfg7 Bc2 Kb2 Qd6 Q7f8 Nc4+ Kc1 Nb2 Qfg7 Qdd1+
1n4R1/3R1p1p/b3B1Q1/P2RN3/1P1nK1pN/rnB4b/RQ3k1q/1N1r1r2 b - - 0 1 illegal: No proof kernel
r2b1nK1/2b2Q2/RBNpN3/1NB2P1k/q1b1p3/3Bn1R1/p1Q1P3/4Nrq1 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 Nc6 d5 Nb8 d6 cxd6 g4 fxg4 c4 Ba6 c5 Bc8 h4 g5 hxg5 Nf6 c6 Kf7 cxd7 Ng8 Kd2 Kg6 Kd3 a5 Kc4 e5 Kd5 h5 Ke6 h4 b4 g3 f4 g2 f5+ Kh5 Kf7 h3 g6 h2 b6 a4 b7 a3 b5 Ra4 b6 Rc4 g7 Rc6 Be3 Nf6 g8Q Rh6 Nc3 Rh8 Nb5 Ng4 Qc2 Be7 Bc5 Ne3 Nf3 g1B Ne1 Qe8+ Kg7 Bg5 d8N Be6 Bg2 Bc4 Ne6 Bd8 Be4 Nd7 b8B Nf8 Bd3 e4 b7 Bf2 Rf1 h1Q Rg1 Qh2 Rg3 Qg1 Bc7 a2 b8N Ra6 Rc1 Ra8 B7b6 Bc7 Nc6 Rh6 Rg4 Bh4 Rg3 Bhd8 Qh7 Qd7+ Kg8 Qe8 Qg7 Rg6 Rb1 Rg4 Rb3 Rf4 Ra3 Rf1 Ra6 Qd7 Qf6 Qc8 Ra7 Qa6 Qe7 Qa3 Ra6 Qa4 Qf7+
7r/Rn3BK1/P1b2N2/Qp2qrR1/1b3npN/Q1B1NpB1/3N2P1/qb5k b - - 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 h4 d5 cxd5 c5 dxc5 g5 Qb3 g4 Qd1 Qg5 hxg5 Ra5 Nc3 Ra7 Nb1 Ra8 Kd2 Kd7 Kd3 f5 Kd4 h5 Ke5 b5 e4 f3 a4 f4 c6+ Kc7 a5 b3 g6 b2 d6+ Kd8 g7 f2 c7+ Kd7 Bd2 Kc6 d7 h4 d8B h3 Bh4 h2 Qa4 Bb7 c8N Rh6 Nf3 Ne7 g8Q Rh5+ Kf6 Kc5 e5 Nbc6 e6 Nd8 Nb6 Ng6 e7 Bc6 e8N Nb7 Bc4 f1Q Bg3 Qe2 Nh4 Kd4 Qa3 f3 Bf7 Nf4 Bc3+ Ke3 Nd2 Bb4 Kg7 b1B Nf6 Rf5 Qd8 Rb8 Re1 h1Q Rc1 Qee1 Nbd5+ Ke2 Qc7 Rh8 Ne3 Qhf1 Bd4 Qg1 Rc5 Qh1 Bc3 Qhg1 Bh2 Kf2 Re5 Qgf1 Bg3+ Kg1 Qb6 Kh1 Ra2 Rfh5 Rg5 Qee2 a6 Qc1 Rc2 Qb2 Qba5 Qa1 Ndc4 Qe1 Rd2 Qe2 Rd7 Qe1 Nd2 Qe2 Rg6 Rf5 Rg5 Qe1 Rd8 Qe2 Ra8 Qe1 Ra7 Qe2 Nef1 Qe5 Ne3
1b3Q2/1nQ1r2k/Pp1r3Q/r4qp1/qR1B1Q2/Np2bR1N/P1n5/N2B3K b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 c4 d5 cxd5 Be6 Nf3 Bd7 Ng1 Bc8 b4 b6 b5 Ba6 bxa6 b5 Qb3 b4 Qe3 Nh6 Qe6 Ng8 Qb6 axb6 d4 Kf7 h4 e5 f4 c5 Kf2 g5 Kg2 Kg7 d6 g3 d7 c4 h5 b3 h6+ Kh7 d5 e4 d6 e3 f6 c3 f5 c2 f7 e2 f6 e1B Na3 Ne7 Bb2 c1Q Rh4 Qcc8 Bd4 Nbc6 Nh3 Nf5 Kh1 Bd2 Be2 Qe8 d8N Na5 d7 Bd6 f8Q Bb8 f7 Ne3 Ne6 Nc2 d8Q Nb7 Rf1 Be3 Bd1 Ra7 Qc7 Qa4 Rf3 Rg8 Qb4 Rd8 f8Q+ Qcd7 Qff4 Qf7 Qf8 Rd5 Rg4 Ra5 Rh4 Kg6 h7 Qf5 h8Q g2+ Kh2 g1R Rg4 Rg3 Kh1 Rg2 Bg7 Qb4 Qc6 Ne1 Qg3 Qa4 Nd4+ Nd6 Ndc2 Rd2 Na1 Nc2 Rb4 Re7 Qc7 Nb7 Qgf4 Rdd5 Bd4 Rd6 Qhf6+ Kh7 Q6h6+
3Q3K/3bB3/p3NR2/n1NBQPn1/Qp4q1/1Bp1Brqb/1r2R2P/1kb5 b - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 f5 exf5 d5 gxh5 Qd7 a4 cxb4 c5 b3 Qc2 b4 Qc4 Qb5 axb5 dxc4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 Kg6 e5 d4 c3 f4 a6 h6 b2 f6 Rh7 c6 Ra7 c7 Be7 b6 Bb7 c8B Bc5 f7 Nc6 f8B Nf6 d5 Na5 d6 Be3 d7 Bc6 d8Q Rd7 b7 Rd2 b8Q Bd7 Ne2 Kd3 Bg2 Kc2 Bd5 Ne4 Qb5 Ng5 Rf1 e4 Be7 Rh8 h7 Rf8 h8Q Rf5 Ng1 Rf2 Nd2 b1B Nb3 Rf3 Bb2 Bc1 Qa4 e3 Ra2 e2 Nh3 e1Q Qh5 Qg3 Nc5+ Nb3 Bcb7 Re5 Bg8 Re2 Bbd5 Ref2 Ne6 Rd2 Nf2 Qg4 Nd3 Rg2 Qa3 Na5 Ndc5 Rd2 Ra1 Ba2 Qa4+ Bb3 Ra3 Kb1 Ra2 Bc4 Rf2 Bf1 Ba3 Rb2 Qh8 Nh3+ Kh7 g5 Qe5 Qg3 Re2 g4 Kh8 Ng5 f5 Bh3 Re4 Rb3 Rae2 Rb2 R4e3 Qe1 Re4 g3 Rh4 g2 Rh6 g1Q Rf6 Qg4 Bb3 Rc2 Bf7 Qeg3 Bb2 Bf4 Bc1 Ra2 Be3 Rb2 Bf2 Bc1 Be3 Bc8 Nd4 Bd7 Bfd5 Qg1 Nde6 Qe1 Qa3 Qeg3 Qa4
6B1/2qQ2bp/1nB4k/Rqb2Kn1/Rp2RBrB/Q1P1r1P1/bp3N2/N7 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 exf5 a5 fxg5 Qc7 d4 cxd4 b4 Qg3+ hxg3 axb4 Kf2 Kf7 Kf3 Kg7 Ke4 d5+ Kf4 b5 a4 b3 g6 e5+ Kg5 b2 c3 e4 a5 e3 a6 b4 a7 d3 Nd2 e2 Ra4 e1B Nb3 d4 Rh4 d2 Na1 d3 Nh3 Be6 Bg2 Ba2 Bc6 Nh6 Nf2 Rg8 Rh5 Nd7 f6+ Kh8 f7 Kg7 Rh4 Re8 a8R Nb6 R8a5 Re3 Kf4 Bc5 g5 Bf8 Qb3 d1Q Qa3 d2 Rg4 Bc5 Rh4 Qe2 f8B+ Kh8 Bd6 Kg7 Be7 Nf7 Kf5 d1Q Re4 Qb5 Bd8 Qd6 Bd2 Rd3 Bf4 Qc7 Be7 Bd2 Bd8 Ne5 Be7 Nf3 Bf6+ Kf8 g7+ Kf7 Be7 Bde3 Bd8 Bed4 Bf6 Re3 Be7 Rd8 g8B+ Kg7 g6 Ng5 Bf6+ Kh6 g7 Be5 Be7 Rd4 Bd8 Kh5 Bf6 Nh3 Bh4 Ng5 Bf7+ Kh6 g8Q Bf6 Qc8 Bg7 Bg8 Rc4 Re8 Rce4 Qd7 Rd4 Bd6 Rg4 Re4 Bd5 Be5 Ba2 Bf4
1kb1N1Q1/nn2Br1b/q1pQN3/NPR2Rp1/B1r2p2/RK5P/4R2b/b7 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 e5 a4 exf4 c4 d5 cxd5 b5 axb5 Rh6 Bh3 Rh7 Bf1 Rh8 e4 Kd7 d4 g5 Kd2 f5 Kc3 f3 d6 c6 a6 f4 d5 f2 a7 g3 e5 g2 e6+ Ke8 h3 Qb6 d7+ Kd8 e7+ Kc7 d8R Qa5+ Kb3 Rh7 e8N+ Kb7 d6 Nf6 d7 Ba3 Nd2 Qb6 Rh2 Bb4 Ne2 g1B Nc4 Qa6 Nd4 Ng8 Ra3 Rf7 Ne6 Bc3 Be2 f1B Qd6 Ba1 Bd1 Ne7 Re2 Bh2 Bb2 Bg2 Bf6 Be4 Bc2 Bh7 Bd1 Nd5 Be7 Nb6 Bc2 Qa5 Bd1 Na6 Bc2 Rb8 a8R Nc5+ Ka2 Qa7 Ba4 Qa6 Rc3 Qa5 Ra6 Ra8 Rcc2 Ra7 Rc1 Ka8 Ka3 Nb7 Kb3 Qe1 Na5 Qf1 N8c7+ Kb8 Rf8 Qh1 d8Q Qe1 Nc4 Qa5 Qe8 Ra8 Ra7 Qa6 Na5 Bc3 Rcc2 Ba1 Rc5 Rf5 Nc4 Qa5 Qg6 Rf6 Rf7 Bd7 Qg8+ Nc8 Rf8 Rg6 Rff5 Rg7 Ra6 Rf7 Ne8+ Qc7 Ka3 Ra7 Bc2 Ra8 Qd5 Qb6 Ka2 Ra7 Ra3 Ra4 Qd1 Na7 Na5 Rc4 Ba4 Qa6 Kb3 Bc8 Qd6+
1r1NN1K1/3Qp2P/N3n1p1/3N1nQr/1Bp1nqQ1/8/3RP1Bb/k1b2R1n b - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 g4 hxg4 b3 f5 Qc2 b5 Qe4 g3 Qg4 fxg4 axb5 a4 b6 a3 Nc3 Bd7 Nb1 Ba4 bxa4 Qd7 Nc3 Qd6 Nb1 Qd8 d4 Kd7 Kd2 Kd6 Kd3 c5 Kc4 a2 h4 g2 f4 g3 a5 g6 a6 Nh6 a7 Ng4 b7 Qc8 h5 Na6 b8N Nh6 f5 Rg8 f6 Qd8 f7 Rh8 Na3 Qd7 Nh3 g1N Bd2 g2 Bb4 Qf5 Nf4 Qf6 Rd1 a1B Rd2 Nf5 h6 Rg8 h7 Bh6 f8Q Qe5 Qc8 Nc7 Na6 Rb8 a8Q Rf8 Qab7 Qf6 Qb5 Nh3 Qa5 g1N Bg2 Nf3 Rf1 Nfg5 Qb5 Ng3 Qg4 Nf2 Qa5 Nf5 Nb5+ Kd7 d6 Nge4 d5 Ne6 Nbc7 Nh1 Ne8 Be5 Nh5 Bh2 Nf4 Kc8 d7+ Kb7 d6 Kc6 d8Q Qe5 Nd5 Qf4 d7 Bg5 Qa3 Bh6 Kd3 Kb5 Qc1 Ka4 Kc4 Rb5 Qc8 Rh8 d8N Rg8 Kd3 Kb3 Qd7 Rh8 Qe1 Rg8 Qeh4 Rf8 Qhg5 Rb8 Rdd1 Ka2 Kc4 Rb5 Ne3 Rb8 Kd5 c4 Rd3 Bg7 Rdd1 Bb2 Rd4 Bc1 Rd2+ Ka1 Q5h5 Nh4 Qhf5 N6c5 Qfh5 Rf6 Qh6 Rfb6 Qhh5 Rb5 Qh6 Nb3+ Ke6 Rh5 Qhg5 Nf5 Kf7 Nbd4 Kg8 Ne6 Nd5
1rQqr2k/1p2b2n/b2B2r1/r5R1/1p1n1PP1/RB2NQ1p/1N4N1/2KQ3Q b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 axb4 h4 d5 hxg5 c6 cxd5 c5 d4 cxd4 Kd2 Kf7 g4 Kg7 a4 h5 d6 e5 a5 e4 f6+ Kh7 g6+ Kh6 f7 Kg7 a6 h4 a7 d3 d7 Rh6 Nh3 Na6 Ra3 Ne7 Nf4 Nb8 Nc3 Kh8 g7+ Kh7 g8N Nd5 Na4 Be7 f8Q Nc6 Ng2 Nd4 Qff3 Kh8 Nf6 Rb8 a8Q Rg6 Bb2 e3+ Kc1 e2 Rh2 Nb6 Nd5 e1R Nde3 Nd5 Qa5 Nf6 Qad5 Re2 Ba1 Nh7 Nb2 Qg8 d8Q Bf5 Qc8 Qd8 Qde4 Bd7 Rh3 Bb5 Ra5 Bc4 Rg5 Ba6 Rg3 h3 Qd5 Rd2 Be2 Rf6 Qh1 Rg6 Bd1 Re2 Bb3 Re1+ Qd1 Re2 f4 d2+ Kb1 Re1 Qf3 Re2 Qdc2 d1R+ Qc1 Rd3 Qcd1 Ne6 Kc1 Rd5 Nd3+ Re5 Bd4 Ra2 Nb2 Ra5 Bc5 Nd4 Bd6 Bf6 Qc5 Re8 Qc8 Be7 Bc2 Nf6 Qe4 Rd5 Nf1 Bb5 Ra3 Nh7 Qef3 Ba6 Nfe3 Ra5 Bb3
Q1N2bRr/1q5R/5P2/N2rpKRB/q1q5/3p2Q1/b2PQB1p/R1knr3 b - - 0 1 illegal: No possible last move
4r1n1/3QQP2/p1p2qq1/Rr4R1/2rQnk2/1Q1n1R1K/1pN1PB2/3b1B1N b - - 0 1 illegal: No proof kernel
KbRB1NB1/1P1qN1Nr/8/p4PQ1/r7/1QpB2Bb/q1p1R1br/1k1n4 b - - 0 1 legal: proof: f4 b5 e4 f5 g4 d5 c4 dxc4 a4 g5 axb5 Bh6 exf5 Qd6 h4 Nc6 h5 Qd5 Bh3 Qd8 Bf1 gxf4 g5 Ne5 Rh3 Bf8 Rh1 Ng6 hxg6 Qd5 Qf3 Qd3 Qd1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 d5 h5 d6 e5 Kd5 c5 Kc6 f3 g7 h4 d7 e4 g6 f2 b6 h3 b7 h2 b8N c3 Ra2 c2 Bf4 Kb3 Ne2 c4 Ng3 Rh7 Nh5 Bd6 Nc3 Nh6 g8B Ng4 g7 Ne3 Bd3 f1B Nd5 Bh3 Ne7 a6 Qc1 Nd1 Bg3 e3 Re1 h1R Re2 Qa5 d8B Rh2 Nd7 Bb8 Nf8 Ra7 Ra1 Qa2 Kb6 Ra8 Rb1 Be6 Kb7 c3 Ra1 Qb1 Ra4 Qa2 Rc4 Bd5+ Rc6 Qb1 Qd2 Ka2 b4 Qa1 b5 Kb1 b6 Bdg2 Bf7 Qa2 g8Q Bd6 Ng7 Bb8 Rf2 e2 Qg5 e1Q Re2 Qd2 Bb3 a5 Qd5 Rh4 Rc8 Re4 Qc4 Ra6 Qa4 Ra8 Bg8 Ra7+ Kc6 Rd7 b7 Rh4+ Kb6 Rh7 Ka6 Rd4 Qa3 Ra4 Kb6 Bd6 Ka7 Bc7 Ka8 Bb8 Bdc4 Qd4 Bd3 Qd7 Qb3+
n1r2nQ1/Pr5B/4q2p/3NPQ2/1RQ3p1/qbp3k1/2RQ1Rqr/1B2KN2 b - - 0 1 legal: proof: c4 a5 g4 g5 d4 f5 gxf5 e5 h4 d5 b4 axb4 Be3 g4 cxd5 Qd7 d6 Be7 d5 Bg5 hxg5 Qd8 Bd4 exd4 e4 Kd7 f4 b5 a4 c5 g6 b3 e5 c4 a5 d3 g7 b2 a6 b4 f6 c3 f5 b3 f7 h6 f8Q Qe7 a7 Qf7 f6 Qe7 f7 Na6 Ra2 Rh7 Na3 b1R Nh3 b2 Nc2 Nf6 g8B Nc7 Ne3 Qe6 Nf4 Rg7 Bg2 Nh7 Be4 Rc1 Ra4 b1Q Rb4 Qa2 Rh2 Rc2 Qe2 Qa3 Qf1 Ra2 Rc2 Ba6 Bg6 Bc4 Bf5 Rc8 Be4 Ng5 Bgh7 Na8 Qg8 Rb2 f8Q Bb3 Qf5 d2+ Kd1 Rc7 Qc4 Rc8 Ke2 d1Q+ Kf2 Qd4 Ke1 Qb6 Rf2 Qb7 Bb1 Nf7 Rc2 Nh8 Rf2 Ng6 Rc2 Nf8 Rf2 Kd8 d7 Ke7 d8R Rc2 Rd6 Ra2 Ra6 Kd7 d6 Qg2 Ra5 Re7 Rd5 Rc2 Rdd2 Rb2 Nfd5 Rc2 Qe2 Kc6 Qf1 Rb7 d7 Rb2 Rc2 Kc5 Nc4 Kd4 d8Q Qd7 Qdg5 Qh1 Rc1 Qf7 Rf3 Rh2 Rc2 Qg2 Rff2 Qg6 Qd7 Ke4 Qd2 Ba2 Nce3+ Bc4 Rf6 Qf5 Qfd3+ Kf3 Qc6 Ba2 Qcc4 Kg3 Rf7 Qg6 Rf2 Bb3 Qf5 Qe6 Nf1+
kr3R2/p1q1q1r1/bpQPQ2R/3N1B2/B4PQ1/5Q1n/4B1Kp/N1n1r1n1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 f5 gxf5 b5 axb5 Kd7 b6 Ke8 b7 Na6 b8Q Qd4 Ra3 Qd3 Ra1 Qd8 b4 g5 h4 g4 b5 Kd7 b6 Bh6 b7 Nb4 Ba3 Bg5 hxg5 Na6 Bc5 Ke8 Bb6 cxb6 d4 Kd7 c4 Kc6 g6 e5 g7 h5 f6 e3 f7 g3 f8Q e4 c5 e2 d5+ Kb5 d6 Kc6 Nd2 g2 Nb3 h4 Qf3 h3 Qc7+ Kb5 b8Q Nf6 g8B Nh7 c6 Ng5 Rc1 Rh4 Na1 Rg4 Bb3 Nb4 Ba4+ Ka6 Qd5 Bb7 Qbc8 Rb8 Qde6 Na2 Rc5 Nc1 Rf5 Qe7 Rf8 Qd8 Qg7 Qc7 Qcd7 Bc8 Qgc3 Rg3 Qfg4 Bb7 f4 Bc8 Kf2 Bb7 Nf3 g1N Ne5 Bc8 Nd3 e1R Rh2 Bb7 Be2 Bc8 Rg2 h2 Qf3 Rg4 Rg3 e3+ Kg2 N5h3 Nb4+ Ka5 Qc2 Rg7 Rg6 Bb7 Nd5 Ba6 Bf1 e2 Qeg4 Rd1 Rh6 e1Q Qe6 Qh4 Bd3 Qhe7 Be2 Re1 Qc5+ Bb5 Qc2 Ka6 Qce4 Qc8 c7 Kb7 Qc2 Ka8 Qc6+ Qb7 c8B Ba6 Qe5 Qc7 Bf5 Qe7 Qee4 Qc7 Qe6 Qe7 Qc2 Qbc7 Qc6+
6b1/2n3K1/2Q3P1/n4Rn1/2bpNp2/1RnQBNBn/p1P1RrR1/1B1kq3 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Qd2 a5 Qd3 f4 Qd1 Be7 h4 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 g4 Bh3 Kf8 Bf1 Bg5 hxg5 Ke8 Kf2 Ke7 e4 Kd6 b4 Ke5 f6 d5 g6 h5 b6 a4 b5 d3 b7 Kd4 b6 d2 f7 a3 f8R h4 e5 h3 e6 h2 e7 Nc6 b8B Qe8 b7 Be6 Bh3 Nf6 Bf1 Na5 Nc3 Bg8 Bc4 Rh5 Ne4 g3+ Kf1 Ke3 Ba2 f2 Kg2 f1N Bb1 Nh7 Nf3 Ng5 Rg1 d4 Rf5 Bc4 Bc7 Rh3 b8Q Rh4 Ra2 Rh7 Rb2 a2 Be5 Qa4 e8R Qb4 Qb5 Ne6 Nc5 Nc7 Nh4 h1B+ Kh3 g2 Kg4 Ng3 Bf6+ Ne4 Qc6 Re7 Kh5 Re6 Rf1 g1N Kh6 Nh3 Rg1 Kf2 Rgg5 Bg2 Qf3+ Ke1 Qd3 d1N Rb3 Qd2 Rg4 Ndc3 Kg7 Kd1 Bd8 Bf3 Rg2 Re7+ Rf7 Bg4 Nf3 Re6 Bh4 Neg5 Rff8 Re2 Bg3 Bge6 Rf5 Bg8 Ree5 Rf2 Re2 Ba6 Ne4 Bac4 Qe3 Qe1 Bd2 Bce6 Qd3 Bc4 Be3+
2r1N3/1KRQR1B1/2nRp1N1/1n1P1nQ1/4p2n/n1P1Bp2/1krQ1qb1/6Q1 b - - 0 1 legal: proof: e4 b5 a4 d5 axb5 dxe4 g4 h5 gxh5 c6 b6 Bd7 Ke2 Bh3 Ke1 Bc8 f4 e6 b4 Rh6 b7 Qc7 b5 Qd7 b6 Rh8 f5 Be7 f6 Qd8 fxe7 Kd7 Bb5 cxb5 Ke2 Kc6 Ke3 Kd5 e8Q Kc4 h4 f5 d4 a5 h6 g5 h5 a4 d5 b4 h7 b3 h6 b2 c3 a3 Qd7 g4 Nd2+ Kc5 Nh3 b1N Nf4 a2 Qg1 g3 Nc4 g2 Ng6 Qf8 Nd6 Na3 Ne8 Nc6 b8R Kc4 Rb7 Kb3 Rc7 Nb5 b7 Nge7 b8Q Ba6 Qbd8 Rc8 Rh5 Rg8 h8Q Qf7 Bd2 Kb2 h7 Rf8 Qd4 f4+ Kf2 Nf5 h8B Rg8 Bg7 Rh8 Rh1 Rh2 Qg5 Qf6 Be3 Qf7 Re1 a1N Qd2+ Nc2 Ra1 Qf6 Qf1 g1N+ Qfg2 Rh8 Rh7 Nf3 Qg1 N3h4 Ra4 f3 Rc4 Qd4 Rc5 Nca7 R5c6 Qc5 Rd6 Nc6 Be5 Qb6 Re7 Qc5 Bg7 Qa7 Qdd1 Nca3 Qd3 Nh6 Kg3 N6f5+ Kf4 Qd4 Qe2+ Qd2 Qed1 Qf2 Qde1 Nbd4 Qd1 Bf1 Qd3 Ndb5 Qd4 Nb8 Ke5 Bg2 Qd2+ Nc2 Qge1 Qg3+ Bf4 Bf1 Rb6 Ng2 Qd4 Na3 Qg1 Rh2 Qd1 Qe1 Be3 Ngh4 Qd4 Rc2 Qd2 Qf2 Rbc6 Nbd4 Ra6 Bg2 Rac6 Nh6 Kd6 Ndb5+ Kc5 N6f5 Rd6 Nc6 Kb6 Ne5 Ka6 Nc6 Kb7
b2R2B1/1nn5/1b1nRk1q/NP6/1n1pQp2/2NpPb2/NB2Q3/QKN4r b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d3 c5 d4 cxd4 h3 g5 gxf5 a5 h4 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Kf7 b4 h5 c4 d5 Kc2 h4 b6 a4 b5 a3 e3 a2 f6 g3 c5 h3 g6+ Ke6 g7 g2 b7 h2 f7 Nc6 b8N Bd6 f8Q Qf6 Ne2 g1N Na6 Nh3 Nbc3 Ng5 Bb2 Rh7 Nb4 Nge7 g8N Na5 c6 Ne4 c7 Bb7 Qg7 Qh6 Nc1 Bc5 Bc4 Bb6 Qe2 Nd6 Rd1 h1B Qg1 Ba8 c8Q+ Ke5 Qc6 Bf3 Rd3 Nab7 Qgd1 Ng6 Ne7 Nf8 Qe8 Rh8 Nec6+ Kf6 Qe4 Ne6 Na5 Nc7 Ncb3 Kf7 Rc1 a1N+ Kb1 Kg7 Nba2 Kf6 Rc2 Rh7 Nbc1 Rh8 Rcd2 Rh7 Qa4 Nc2 Rd1 Rh8 Rg1 Nb4 Rg6+ Kf7 Re6 Kg7 Re8 Kf6 Rd8 Rh7 Rd1 Rh8 Rg1 d3 Rg6+ Kf7 Re6 d4 Re5+ Kg7 Bg8 Kf6 Re6+ Kg7 Ncb3 Qg6 Nbc1 Rh1 Qa3 Nba6 Nb4 Qh6 Bh7 Kf7 Qa1 Kg7 Nba2 Nb4 Re5 Kf7 Bg8+ Kf6 Re6+
r1Q3q1/R2p1k1B/N2P2Q1/rB5n/pQ3r1Q/1r1P1bpN/b2b4/3R2KN b - - 0 1 legal: proof: f4 f5 g4 g5 a4 b5 axb5 h6 d4 Nc6 e4 Ne5 exf5 Nd3+ cxd3 Rb8 Be3 Ra8 Bf2 Kf7 Bh4 gxf4 g5 Ke8 g6 Ba6 Bf6 Bc8 Bg5 hxg5 Kf2 e5 b4 a5 h4 c5 b6 f3 d5 c4 h5 c3 h6 c2 g7 c1R h7 g4 d6 e4 f6 Nh6 g8B Rc2+ Nd2 Ra6 b7 Rc4 b8N Nf5 b5 Bh6 b6 Bb7 Nh3 g3+ Kg1 e3 Ne4 e2 Bg2 Ng7 Nef2 Bd5 b7 Nh5 f7+ Kf8 Qb1 Rf4 Qb4 Ba2 Qe4 Rb6 Na6 Rb3 b8Q Kg7 Qbb4 e1R+ Bf1 Kf8 Qg6 Re5 Bg2 Qa8 Rd1 Rd5 Rh2 Qb8 Nh1 f2+ Kf1 Rdf5 Bc6 a4 Bb5 Qc8 Kg2 f1B+ Kg1 Qc4 Rc2 Bg2 Rcc1 Qd5 Rc7 Bf3 Ra7 Re5 Qf5 Kg7 Qg4+ Kf6 f8Q+ Qf7 Qc8 Ref5 Bc4 Ra5 Bb5 Qe8 Bf7 Qe6 Bg6 Qg8 Be4 Kf7 Bf5 Qg6 Be4 Rf8 h8Q Qg8 Bh7 Rd8 Qc2 Ra8 Qc8 Rf5 Qh4 Bd2 Qe5 Rf6 Qeg5 Rf4 Qg6+
b3r2q/n2N2R1/QN5k/1P3p1r/1B3KB1/1nQp1P2/pq1RN1R1/2n3Rn b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 h4 gxh4 d4 e6 dxc5 Bg7 c3 Bd4 cxd4 e5 Qc2 exd4 Qb3 Ke7 Qd1 Ke8 Kd2 Kf8 e4 Kg7 g4 a5 c6 f5 f3 d5 b6 h5 b7 d3 Ke3 a4 c7 h3 e5 d2 b5 h2 e6 d4+ Kf4 a3 e7 h4 e8R h3 g5 a2 g6 d3 Qe1 d1Q Qc3+ Kh6 g7 Nc6 b8N Qc2 Ba3 Qb2 Re7 Bb7 c8Q Na7 Bb4 Nf6 g8R Nd7 Ne2 Nc5 Na3 Nb3 Rhg1 h1N Nc4 h2 Rd1 Ng3 Nb6 h1N N8d7 Rh7 Rgg7 Qh8 Rd2 Bc6 Qa6 Re8 Bh3 Bd5 Bg4 Ba8 Nd4 Ne2+ Ke3 Nec1 Ne2 Rb8 Kf4 Re8 Rg8 Rg7 Rf7 Rg5 Rfg7 Rh5 Bh3 Rd8 R7g2 Rb8 R8g7 Re8 Bg4
n4B1N/1Rqkr1nK/R1r2R1P/NQ1PrQ2/N7/5pBp/3p3R/2r1q1b1 b - - 0 1 illegal: No proof kernel
2NBbN1b/1R3P1N/1qrp2p1/4q1qk/Q3R1N1/rq2pQ1P/3n2B1/4R1K1 b - - 0 1 legal: proof: b4 a5 g4 h5 d4 hxg4 a4 b5 e4 f5 exf5 c5 axb5 cxd4 Bf4 a4 Be3 Nc6 Bc1 Na5 bxa5 Bb7 Ke2 Ba6 Ke1 Bc8 c4 Kf7 f4 e5 Kf2 g6 c5 d3 c6 d6 f6 a3 b6 e4 f5 a2 a6 d2 c7 Rb8 h3 Rh5 b7 Rh4 a7 Bd7 a8Q Rc8 b8R Bg7 Na3 Bh8 Nc4 Be8 Nf3 g3+ Kg1 g2 Qda4 d1Q Rb7 Qb3 Bg5 e3 Nce5+ Kf8 f7 Kg7 f8N Nf6 Ng4 Ne4 Rd1 a1Q Rd4 Nd2 Re4 Qe5 Be7 Rh7 Ng5 Rh5 Ngh7 Rg5 Ngf6 Kh6 Ng4+ Kh5 f6 Rf5 f7 Rf2 Q8a5 Ra8 c8N Qdb6 Qc6 Ra7 Qa1 Ra3 Bd8 Re2 Qd1 Re1 Qf3 Rc1 Qa4 Rc6 Bc4 Qec3 Kh2 Qcd4 Re1 Qdc5 Bf1 Qd4 Kg3 g1Q+ Bg2 Qf6 Rb4 Qg5 Re4 Qf1 Kh2 Qfb5 Kh1 Qbe5 Kg1
1r3R2/1QPn2nK/B4N2/rp2pR2/2n2B1k/3BqP2/1QNpqQb1/5nQ1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 c4 b5 h4 d3 a4 d2 h6 d6 a5 g4 c5 e6 a6 b3 h5 Kg5 f3 b2 c6 g3 c7 g2 a7 Ne7 f6 Na6 h7 Nf5 f7 Qe8 h6 Nd4 Qe1 Nf5 Bd3 Qe7 Ne2 g1Q Nec3 Qg3 Nd5 Ng7 Na3 b1N Nf6 Nb8 Nc2 Qg2 Qg1 Rg8 h8Q Na3 h7 Nd7 Rh2 Rb8 a8B Nc4 Bb7 Ra8 Rh6 Ra5 Ba6 Qe8 Rg6+ Kh4 Rg5 d1N Bf4 Nde3 Rf5 Qe2 Re1 Be7 f8Q Bd8 Qe7 Nf1+ Be3 d5+ Kf4 Kh3 Kg5 d4 Kh6 Kh4 Bf4 Qe3 Qb4 Be7 Rd1 Bc5 Ra1 Qe7 Qb2 Rd8 Qe8 Bb6 h8Q Ba7 Be4 d3 Kh7 d2 Bd3 Qe2 Qhf8 Bf2 Ra4 Qc5 Qd6 Qd4 Qc6 Qde3 Qe7 Re8 Qb7 e5 Qea3 Nc5 Qaa1 Bd7 Qe1 Rb8 Rg5 Bh3 Rf5 Bg2 Rb4 Nb6 Rd4 Nc4 Rd8 Nd7 Re8 Qc5 Rf8 Qce3 Qexf2+
1Kn3B1/Rp3N1p/Nq1QrQ2/n1n2P1B/pR3b2/n1B4N/B2P3k/5bq1 b - - 0 1 legal: proof: b4 a5 h4 c5 e4 g5 c4 gxh4 Qf3 d5 Qd1 f5 Bd3 Nc6 cxd5 c4 exf5 Ra6 a4 Rb6 Bc2 Rb5 Bd3 Rc5 bxc5 Nb4 Be2 Na2 Bf1 Qd7 Be2 Qxa4 Bd3 Qd7 Bf1 Qd8 Ke2 Kd7 Kf3 e5 Ke4 c3 f4 c2 g4 h3 g5 h2 c6+ Kd6 f6 Be7 g6 Qc7 f5 Qb6 c7 Be6 c8B Nb4 f7 Qd8 f8Q Na6 g7 Qb6 Bb2 c1N Nh3 Nb3 Be2 Bd7 Na3 Bb5 Bh5 Bf1 Rg1 h1Q+ Qf3 Qh2 Rg4 Qhg1 Qf7 Bd8 Bc3 Bc7 Qg3 Ne7 Be6 Re8 g8B Nc8 Nc2 Re7 Nb4 Nac5+ Kf3 Re8 Qf6 Re7 Bef7+ Re6 Na6 Bb8 Rf4 e4+ Kg4 e3 Rb4+ Kd7 d6 e2 Kf4 e1N Qd3 Nc2 Qdd4 Na3 Qde5 Kc6 d7 Bd3 Qc7+ Kd5 d8N Bf1 Rb5 Kc4 Rb4+ Kd3 Qd6+ Nd4 Bhg6 Ke2 Ra2 Nc6 Ra1 Re8 Ba2 Re6 Nf7 Bc7 Nhg5 Kf2 Nh3+ Kg2 Bh5 Kh2 Qg5 Rh6 Qf6 Nd8 Ke5 Nc6+ Kd5+ Kg2 Qde7 Kh2 Qee6 Bf4 Qd6 Ne4 Ke6 Rg6 Kd7 Rh6 Qh4 Re6 Qf6 Nc4 Nc5 Qb5 Bb1 Qb6 Raa4 Na3 Ba2 Qb5 Kc7 Qa6 Nd7 Nc5 Nb8 Qa7 Rb5 Qa6 Rab4 a4 Ra5 Qb5 Ra7 Na5 Na6 Qb6+ Kb8
RqQ1rqb1/ppN1B1n1/1Pp1QB2/k3N3/B1P4b/2n3B1/n4n2/1RN3K1 b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 e5 d4 e4 a4 e3 h4 gxh4 b5 e2 b6 Nc6 Kd2 e1N Ke2 Nd3 Kd2 Nde5 dxe5 Nb8 Ke2 Nc6 Ke1 Nb8 Bd2 d6 Ra2 c6 Ba6 Be6 Bf1 Na6 Bc1 Rc8 Ra1 Rc7 Ba3 Rg7 Bb2 Rg3 Bc1 Rb3 Ba3 Nc7 Bc1 Rb5 axb5 Nxb5 g4 Kd7 f4 h5 Kf2 h3 f6 h4 f7 h2 f5 d5 g5 h3 g6 d4 g7 d3 f6 d2 Ne2 Ne7 g8Q Rh5 Qe1 d1Q Bb2 Bg7 f8B Qb8 f7 Nc3 Na3 Ned5 Be7 Rh8 f8B Na2 Rb1 Bf6 Nc4 Ndc3 Nc1 Qdd6 Be2 Qb4 Bd1 Bh4+ Kf1 Qc5 Bh6 Bf7 Bf4 Qcd6 Qf8 Bg8 Bg3 Qc5 Rg1 h1N Ba1 Ke6 Qc8+ Kd5 e6 h2 Ne5 Nf2 Rg2 h1N Kg1 Qcd6 Qe2 Kc5 Qg4 Na4 c4 N4c3 Bb3 Kb4 Ba4+ Ka5 Rh2 Nfe4 Rf2 Qd8 Rf8 Nef2 Bb4+ Ka6 e7 Bf7 e8N Qbc7 Nd7 Nd5 Bf4 Ng3 Qe6 Nh5 Qa8 Ng7 Be7 Ka5 Baf6 Ndc3 Bg3 Qdc8 Ne5 Q7d8 Nc7 Qd6 Rd8 Re8 Bf8 Bg8 Qb8 Qe7 Qa8 Qf7 B8e7 Qf8 Nb5 Ka6 Qb8 Ka5 Qc7 Qd7 Ra8 Qd6 Qcc8 Qb8 Nc7
R2n1k1b/6R1/2rnpbQ1/BR2rP2/B1N2N2/B4P1Q/1p1K1Bbp/1b1n4 b - - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 e4 d5 c4 b5 cxd5 f5 exf5 Qd7 Bb2 axb4 Bc1 b3 Qf3 b4 Qd1 Qb5 axb5 Kd8 Bb2 Kd7 Bc1 Ke8 g4 h5 d4 c5 b6 h3 g5 h4 b7 e6 d6 h2 d5 c4 g6 c3 g7 h3 Ra6 b2 Qf3 b3 Na3 b1B Bb5+ Nc6 b8R c2 Ba4 Ne7 Rb5 Bb7 g8Q Nd8 Kd2 Nc8 d7+ Ke7 Qfg3 Nd6 Ne2 Bg7 Nf4 Bf6 Q8g6 Kf8 Rg1 h1N Nc4 h2 Ba3 b2 Qh3 c1B+ Kd1 Rc8 Ra8 Be3 Rg2 Bc5 Kd2 Rh4 Rg5 Rc6 f3 Nf2 Rg1 Ba6 Rg3 Nd1 Rg2 Ne8 d6 Bcd4 Rg4 Bh8 Rg2 Bdf6 Rg5 Nf7 d8B Rg4 d7+ Ned6 Bc7+ Nd8 Ba5 Rg1 Bb6 Re1 Bf2 Re5 Qgh5 Ne3 Rg7 Nd1 Qg6 Rec5 Rb6 Nc8 Na5 Bf1 Nc4 Bg2 Rb5 Nd6 Ra7 N8f7 d8B Re5 Ba5 Nd8 Ra8
4bn2/8/r2P1N2/r2BNQn1/2prRR2/1nNRPBk1/p1rbp3/2N1Q2K b - - 0 1 illegal: No extended proof kernel
QBR1R3/3QRQ1N/N2pb1n1/1n1rBb2/5pr1/b2Pb1p1/1R2K2P/rk6 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 g4 exf4 b4 Nh6 bxc5 Ng8 Na3 h5 Nf3 f5 Bh3 Qg5 Ng1 f3 Nb1 f4 Nc3 Bd6 Nb1 Qf5 gxf5 Bf8 Bg4 hxg4 c4 Ke7 e4 Kf6 b6 Ke5 c6 Kd4 e5 Kd3 c5 g5 f6 a5 c7 g3 b7 g2 f7 g4 c6 a4 e6 a3 e7 g3 e8R a2 Nh3 g1B Na3 Ba7 Bb2 Be3 Nc2 Ra5 Ng5 Na6 b8B Rh4 Rb1 a1R Nh7 Ne7 Be5 Ng6 Rb2 Ba3 f8Q Rd5 Qf7 f2+ Kf1 Rg4 Nb4+ Kc4 Ke2 d6 Qa4 Bf5 c8Q Nc7 Qa8 Nb5 c7 Be6 Qcd7 f1B+ Kf3 Bg2+ Ke2 Be4 Na6 Bc2 Re1 Bcf5 Ra2 Kb3 c8R Rc1 d3 Rd1 Rac2 Ra1 R2c7 Ka2 Rb1 Na7 Rbb7 Nb5 Rc2+ Kb1 Ra7 Nc7 Rb2+ Kc1 Qde7 Rb1 Bc3 Ra1 Qd8 Nb5 Rae7 Bg1 Qd7 Be3 Rc2+ Kb1 Be5 Nh4 Rd2 Ng6 Rb2+
1NrRK3/BB1P4/1N4Qk/3b4/1p2pbRb/2r3P1/R1bn2p1/1Qnn1B1B b - - 0 1 legal: proof: c4 d5 cxd5 Kd7 b4 g5 f4 a5 fxg5 axb4 d4 c6 e4 Ra3 d6 Ke6 d7 Ra8 d5+ Ke5 d6 Ke6 Ba6 Qc7 Bf1 Qa5 Be2 h5 Kd2 h4 Qe1 Qd5+ exd5+ Kf5 Nf3 Kg6 g3 Rh6 Bf1 Na6 Bg2 Rh7 Qe3 Rh8 Rd1 Nb8 Qe5 Ra4 Qe1 Ra8 Qg1 h3 Bh1 Rh7 Qg2 hxg2 h4 Rh8 Kd3 f5 Kd4 e5+ Kc5 b5 d8Q b3 a4 b2 h5+ Kg7 h6+ Kg6 h7 b4 a5 f4 a6 Be6 a7 Bc8 Nc3 b1B Rd4 Ne7 d7 Bb7 Kd6 c5 Ra2 c4 Qb6 Na6 d8R Nc5 Be3 Bc2 Na4 Rc8 a8B Nd3 Kd7+ Rc6 d6 c3 Rc4 Nf5 Ke8 Nc1 Nd4 f3 d7 f2 Qa6 f1N Nb6 Rc8 Nc6 Nd2 Nb8 Bd5 Rg4 e4 Bb7 Kh5 Bg1 Ne3 g6 Nd1 g7 Be7+ g8B Kh6 Bf2 Bh4 Qd3 Bcb3 Qb1 c2 Na4 Ne2 Ba7 c1B Nb6 Bc2 Bc6 Bb2 Ba8 Bg7 Bb7 Bf8 Be6 Rc3 Bf7 Nc1 Bg8 Bc6 Bc4 Bd5 Bf1 Rg8 Na6 Rg6 Nb8 Rgc6 Bba6 Rc8 Bb7 Kh5 h8Q+ Bh6 Qg8 Bf4 Qf7+ Kh6 Qg6#
2b1n1B1/pP1nbKp1/bNp2QB1/R7/Rn1b1P2/3NQr1B/6rk/Q2Q4 b - - 0 1 legal: proof: f4 d5 a4 b5 axb5 f5 c4 dxc4 g3 e5 fxe5 Be6 Bg2 Bd7 Bf1 Bc8 b3 h6 Ba3 f4 Be7 f3 Bh4 Qf6 Bg5 Qf4 gxf4 hxg5 Kf2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 d4 f2 e4+ Kh4 b4 c3 b6 c2 b7 c1B e6 g4 e5 g3 e7 g2 e8B Bd7 e6 Be3 b5 Na6 b8Q Rh6 e7 Rh7 b6 Bc1 b7 Rh6 Ne2 Kh3 Bg6 Bb2 e8B Bfa3 Bef7 Be8 Ke6 c6 d5 Bc5 d6 Bc1 d7 Rh4 d8Q Rg4 Nd2 Bd4 Nc4 Bcb2 Ra5 Ba3 Nc1 Nb4 Qe5 Nf6 Bg8 Bd7+ Kf7 Ne8 Qdf6 Rd8 Nd3 Bc8 Qe3+ Rg3 Qa1 Rf3 Nb6 Rd5 Rg1 Rg5 Qd1 Nd5 Ra4 Be7 Qa1 Nb4 Qd1 Kg4 h4 Kh3 h5 Kh2 h6 Rg4 h7 Rg5 Be2 f1B Qa1 Rgg3 Bd1 Be2 Rf1 g1N h8Q+ Nh3 Qhh4 Rg2 Qg4 Nf2 Bb3 Ne4 Be6 Nc5 Qh5+ Kg3 Bh3 Nd7 Rc1 Bf1 Rc5 Kh2 Rca5 Be2 Qd5 Bf1 Qb3 Be2 Qbd1 Bf1 Ne1 Ba6 Nd3
1Q5b/1b1n1R2/1BqRP1p1/4N3/2RK1Q2/1b2Qqp1/1k2pNP1/1BqnnQ2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 h5 Qf3 b5 axb5 d3 Qg4 hxg4 f3 e5 Ra3 d5 Ra1 a5 Kf2 d4 Ke1 Rh5 f4 Ra7 Nh3 Rd7 Ng1 Rd5 exd5 e4 Ra2 Be7 Ra1 Re5 fxe5 Bf8 Kf2 Kd7 h4 f5 c4 f4 b4 a4 d6 Ke6 h5 d2 d7 d1B b6 d3 c5 Kd5 b7 Kd4 e6 d2 h6 f3 c6 a3 b5 g6 b6 a2 c7 Bd6 h7 Be2 h8Q+ Qf6 d8Q d1Q Nd2 Kc3 Ke3 g3 Qf8 f2 Ndf3 Qa4 Qhh6 Bd1 Nh3 Qc6 Ne5 Ne7 Bd3 f1Q Bb1 Nd7 b8Q Bb7 c8R Bb3 Nf2 Ba3 Qa7 Bb2 Qf4 Qg1 Rh7 Nd5+ Ke2 e3 Rf7 Qe1+ Kf3 e2 Ke4 Qh1 Be3 Qc1 Rd8 Ba3 Bc5 Kb2 Kd4 Ne3 Rc8 Nd1 Rc7 Ba8 b7 Bb4 b8Q Bb7 Bb6 Ba3 Qe3 Qff3 Qa4 Be7 Qb4 Bf6 Qe1 Bh8 Qf1 Qb5 Rc4 Qbc6 Bd3 Qd2 Rac1 a1N R1c3 Qc1 Bb1 Qc7 Qfh6 Qcc6 Qhf4 Nc2+ Kd3 Ne1+ Kd4 Qb5 Rc6 Qa6 Rd6 Qb5 Rc5 Qbc6 Rc4
3BN3/bbp2b2/r2B1qNb/2Q1P2K/2Bb1QRB/3p4/1p4PQ/qR1n1k2 b - - 0 1 legal: proof: e4 f5 c4 fxe4 h4 a5 b4 g5 hxg5 axb4 Qg4 b3 Qe2 Ra7 Qd1 Ra8 d4 b5 Qd3 e5 Qh3 b4 Be2 e3 Bf1 e4 Qf3 Nc6 Qd1 Ne5 dxe5 Ra5 Nh3 Nh6 Ng1 Rb5 cxb5 Ng8 Ke2 Ke7 a4 Ke6 f4 Kf5 b6 Kg4 b7 Kg3 b8B h5 f5 d5 a5 d4 g6 b2 g7 b3 a6 h4 f6 h3 f7 h2 a7 Rh4 a8Q Ne7 g8Q+ Rg4 Qd2 Nf5 Qc6 Bh6 f8B Qf6 Ra4 Bb7 Qh7 Rg6 Na3 b1B Nc4 b2 Bd6 Ba2 Nh3 Bb3 Rg1 h1Q Nf4 Ba2 Ba7 Bb3 Nb6 Bf7 Qc5 Kh2 Nd7 Kg3 Kd1 e2+ Ke1 Kh2 Kf2 e1B+ Ke2 e3 Bb6 Qd8 Nf6 Bf2 Ne8 Re6 Ng6 Qf6 Ba5 Kg3 Bb4 Kh2 Be7 Ra6 Bd8 Kg3 Qb5 Kh2 Bd6 Kg3 Qc5 Kh2 Kd3 e2 Qh8 e1B Ke2 Be3 Qdb4 B3f2 Bg5 Ne3 Bh4 Nd1 Qbc4 Ba5 Qc1 Bb6 Qf4+ Bg3 Rc4 Ba7 Rb4 Rc6 Kf3 Rb6+ Kg4 Ra6 Qfc1 Bf2 Bc4 d3 Kh5 Bd4 Re1 Qhf1 Qf4+ Kg1 Ra4 Nc3 Rb1 Nd1 Qf8 Qe1 Qh2+ Kf1 Bb3 Bc3 Rg4 Bd4 Bc4 Qa5 Bf2 Qa1 Bh4 Bg5 Qh6 Bc1 Qe3 Bd2 Qe4 Bh6 Qef4+
3k2Br/3r1Pq1/2Qn2Bq/qR3RQ1/2BNqP1p/1K2b1p1/1R1N2p1/1rB5 b - - 0 1 legal: proof: g4 c5 h4 f5 a4 g5 d4 b5 axb5 cxd4 f3 Bb7 f4 Bf3 exf3 Na6 Ra3 Nc7 Ra4 Ne6 Ra2 fxg4 Ra1 g3 Qd3 g4 Qd1 Ng5 hxg5 Qc7 Bg2 Qb8 Bf1 Qd8 Kd2 d5 c4 a5 Kc2 e5 b4 h5 g6 e4 f5 a4 f4 g2 c5 g3 g7 h4 f6 e3 b6 a3 b7 e2 b8Q e1Q f7+ Kd7 b5 d3+ Kb3 d4 b6 d2 b7 a2 Qc2 d1R Nd2 d3 Qe5 Nh6 g8B Rb8 Qg5 Nf5 Ne2 Qa5 Nd4 Qe4 c6+ Kc7 Rb1 a1Q Rb2 Bc5 Qc3 Rd8 b8R Rd7 Rb5 Nd6 Be2 Kc8 c7 Bb6 Qc6 Re1 Nb1 d2 Rf5 Rf1 Bc4 d1Q+ Nc2 Bd4 Nd2 Be3 Rg1 Qh5 Nd4 Rd1 Rf1 Qh6 Re1 Qab1 Rb5 Qeg6 Re2 Qgg7 Rf5 Bg1 Ree5 Be3 Rc5 Qe4 Rb5 Re7 Qa6+ Kd7 c8B+ Kd8 Qc6 Re1 B8e6 Rd1 Bd3 Rh1 Bec4 Rd1 Qg4 Rd7 Qg5+ Qhf6 Rfd5 Qf3 Bf5 Qh6 Bg6 Qe4 Rf5 Rg1 N2f3 Re1 Bd2 Ra1 Bc1 Rb1 Qg4 Qfe5 Nd2 Qeg7 Qg5+
3Q1q2/4nkN1/2bBR1p1/n2B4/2P2B1P/1nBQb2K/Nb3ppn/n1RN4 b - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 hxg4 d4 cxd4 Ke2 d5 Ke1 d3 f3 a5 Be3 e5 Bd2 d4 Bc1 Rh5 f4 Ra6 Bd2 Rd6 Bc1 Rd5 exd5 e4 Na3 Be6 Nb1 Re5 fxe5 Bc8 Kf2 f5 Kg2 a4 h4 d2 b4 g6 c4 a3 b6 e3 b7 f4 d6 e2 e6 e1B b5 g3 b6 f3+ Kh3 f2 Qa4+ Nc6 b8B d1N b7 a2 Bd2 d3 Bc7 Nc3 b8B Ne7 Qd1 Na5 Bg2 Bh6 Ne2 Be3 Nc1 Ne2 Bd5 g2 Bc3 d2 d7+ Kf8 Rg1 Bb7 Bf4 Bc6 Bbd6 Nd4 Rf1 Qe8 d8Q Ndb3 Qe2 d1N Qd3 B1d2 Re1 Bd4 Re4 Ne3 Re5 Nf1 Re4 Kg8 Re5 Nf5 e7+ Kg7 Re6 Qf8 e8N+ Kf7 Ng7 Nh2 Na3 B4e3 Nc2 Ne7 Rb1 a1N Na2 Bd4 Ne3 Bc1 Nd1 Bce3 Rc1 Be5 Bd2 Bb2 Bc3
6Nk/rN1Brr2/1QP1p3/1r1RKnR1/3p1Np1/1B4Pn/4Rr1b/1N1Qn3 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Ra6 g4 Ra2 Qb6 Ra6 Qf6 Ra1 Qg5 hxg5 d5 e4 f6 Rh4 d3 Bf4 d4 Be5 Bb7 Rh1 Bd5 exd5 fxe5 Kd2 Kf7 c4 Kg7 f4 h5 b4 a5 g6 a4 g3 h4 c5 e4 b6 h3 b7 h2 f5 a3 f6+ Kh6 f7 Kg7 d6 a2 b5 Ra5 d7 Rh7 d8N Na6 b8R Nc7 b6 Rb5 b7 Nd5 Nh3 Nh6 Nf4 Kh8 c6 Bg7 f8N Nf5 Nd7 Bh6 Nf6 Rf7 Ng8 Bg5 Rg1 h1R Rg2 Rh2 Re2 Rf2 Ra8 Bh6 b8Q e6 Qb6 Re7 Ra5 Bg5 Nb7 e3+ Kc1 d2+ Kc2 Bh6 Kd3 Bg5 Ke4 Bh6 Qa4 d1R Ke5 Rc1 Bg2 Rcf1 Qd1 Bg5 Be4 Bh6 Bc2 Bg5 Rd2 e2 Bb3 e1N Re2 Bh6 Nd3 Be3 Nf4 Rb4 Rc5 Rb5 g7+ Kh7 Ng2 Nf4 Rd5 Nh3 Nf4 Rg2 Nh6 Bg1 g8B+ Kh8 Bf7 Bh2 Be8 Rgf2 Ng8 Rg7 Nd2 Re7 Rc1 a1R Bd7 Ra7 Nb1 Rf3 Rc3 R1f2 Rcc5 Nh4 Nd3 Rff7 Nf4 Nf5 Ke4 Nh4 Rg5 Nf5 Rd5 Ra1 Ke5 Ra8 Rg7 Ra7 Rg5
1BBRq3/1q2R1kq/2QQ1r2/3p1R1p/b1r1B2P/3b2Pp/Nqb5/N4R1K b - - 0 1 illegal: No proof kernel
2N2Q1K/pb3QR1/1p1R1P2/q3P3/n2nQb1B/2B5/1q2b1pk/Qn2NB1b b - - 0 1 legal: proof: e4 f5 g4 fxe4 b4 h5 gxh5 c5 a4 cxb4 a5 Rh7 a6 Rh8 d4 g5 Qg4 e5 Qg2 b6 Na3 e3 Qh3 e4 Qg4 Nc6 Qd1 Rb8 Nb1 Rb7 axb7 Rh7 Qf3 Re7 Qd1 Re5 dxe5 Ke7 Ba3 Kf7 Bc1 Ke8 Ke2 Kf7 b8Q Ke6 c4 Kf5 h4 Kg4 f4 Kg3 f5 d5 c5 b3 h6 b2 h7 g4 h8B d4 h5 Qc7 h6 Qg7 h7 Be7 Nf3 Qf8 Rh6 Bg5 Qc7 Bb7 Na3 b1B Ne1 Bf4 Bf6 Nge7 h8Q Nd5 Bh4+ Kh2 Qf7 g3 Rd6 Qe8 f6 Ba2 Qc2 d3+ Kd1+ d2 Ke2 Qf8 Nc4 Qg8 Bb2 Nd4+ Kd1 Qe8 Qhf8 Qb5 Bc3 Qb2 c6 Bb3 c7 Ba4 c8Q Bd7 Be2 Bg4 Nd3 Bf3 Ne1 Bh1 Bf1 g2 Rc1 Ne6 Ke2 Nc5 Qd3 Na4 Qg4 Nb4 Qf3 Nc2 Qd4 Na3 Rd1 Nb1 Rd7 Bc6 Nd6 Bb7 Nc8 Qc1 Rd6 Qb2 Rc1 Qb5+ Kd1 e2+ Kc2 e3 Qfe4 Qb2+ Kd3 d1B Kc4 Ba6+ Kd5 Bb7+ Ke6 Qa3 Nc2 e1N Ke7 Nf3 Ne1 e2 Ke6 Qb2 Kf5 Bb3 Kg6 Bc4 Kg7 Bca6 Qd1 Nd4 Kh8 Bb5 Bd2 Bd3 Rc7 Bda6 Bc3 Bc4 Nc2 e1Q Re7 Qd2 Ne1 Be2 Qc1 Qb5 Qa3 Qdb2 Qa1 Qa6 Qfd5 Qab5 Rg7 Qa5 Qdf7
2Q4n/3KRNPk/p3Nq2/4rn2/pr1p2Q1/1r1N3P/n1nBB2R/3rN2R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 Be3 g5 Bc1 f5 exf5 g4 Bd3 h5 Qe2 g3 Qd1 Bb7 Rh3 Bh6 Bc4 Bg5 hxg5 h4 Rh1 h3 Bd3 h2 Bf1 Bf3 Nh3 Bg4 Ng1 Bh3 gxh3 Qc7 Nc3 Qb6 Nb1 Qd8 Kd2 Kf8 Kd3 Kg7 Ke4 e5 Kd5 e4 Kd6 g2 c4 d3 f4 a6 b4 d2 f6+ Kg6 b5 e3 b6 e2 f5+ Kh7 b7 e1R c5 Ra7 c6 Re2 g6+ Kh6 g7 Ra8 c7 Qc8 f7 Re5 f8R Ne7 f6 Ng6 f7 Kh7 Ra2 Qd8 c8N Nc6 b8Q Nb4 Be2 Nc2 Nf3 g1R Ne1 Qf6+ Kc7 d5 Nd6 d4 Re8 Rg8 Nd3 Nh8 Qc8 Rb8 Re7 Rb4 Kd7 Re8 Rb2 Rg3 Qg1 d1N Bd2 Nc3 Na3 Na2 Qg2 Rf3 Qg3 Rf1 Qg4 Rd1 f8N+ Kg8 Qc7 Reb8 Ne6 Kh7 Qc8 Rb3 Nf7 R8b4 Rf1 h1N Re1 Na1 Nc2 Ng3 Rh1 Nf5 Nce1 Rc1 Rc2 Rcb1 Rc1 Nc2 Rh2 Ra1 Ng2 Rab1 Rch1 Rd1 Nge1
6k1/K2N1pB1/QNB2nbQ/NR3Ppr/1pb5/3Qn3/PpR3b1/r1q1Q3 b - - 0 1 legal: proof: h4 e5 d4 a5 b4 axb4 c4 d5 cxd5 exd4 Qd2 Bd6 Qd3 Qf6 Qd1 g5 Qd3 Bg3 Qd1 Qg6 h5 h6 hxg6 h5 Qb3 h4 Qd3 h3 Qd1 Bh4 g3 Na6 gxh4 Nb8 Kd2 Kf8 Kd3 b5 e4 c5 f4 b3 f5 b2 e5 h2 h5 Ra7 e6 Rh6 g7+ Ke7 d6+ Kf6 e7 Nc6 e8Q Nce7 d7 Rg6 d8N Rh6 Nd2 Ra5 Nb7 Ng6 Qee1 Rh8 h6 Ra7 h7 Be6 Na5 Rd7 Bg2 Nh4 Bc6 Ng2 Ndc4 Ne3 Nb6 c4+ Ke4 c3 Rb1 d3 Nf3 d2 Ne5 Rc7 Kd4 Bc4 Kc5 Rb7 Qa4 d1B Ned7+ Ke7 Rf1 h1B Rf2 Bg2 Rc2 Nf6 g8Q Bh5 Qa8 Rbb8 Qa3 Bg6 Qa6 Rbd8 Na4 Ke8 Kb6 Rc8 Ka7 Rb8 Ndc5+ Kf8 Nb6 Rd8 Qb3 Rd1 Qa3 Nf1 Bf4 Ne3 Be5 Kg7 Ncd7 b4 Rbc1 Rd2 Qb3 Rf2 Rd1 Rf1 Rd5 Rg1 Rb5 Rh1 Rf2 c2 Qd3 c1Q Rc2 Qd2 Qf2 Ra1 Qe1 Qc1 Nc5 Rg8 h8Q+ Kf8 Qhh4 Rh8 Ncd7+ Kg8 Bd4 Rh5 Qh2 Kh7 Qd6 Kh8 Qf8+ Kh7 Qh6+ Kg8 Be5 Ne4 Bh8 Nf6 Bg7
BBNn3R/2Pb1r2/K1pn2R1/Rp2pQP1/1QRNB3/q1b5/n1r1pk2/8 b - - 0 1 legal: proof: e4 g5 b4 f5 h4 fxe4 hxg5 a6 b5 axb5 c4 b4 d4 b3 c5 b2 d5 c6 d6 Qc7 Nc3 b1R dxc7 Rb6 Nb1 Rba6 Bf4 b5 Bc1 Rb6 cxb6 Ra4 Na3 Ra5 Nb1 Ra8 Kd2 Kf7 Kc3 Ke6 Kb4 Kf5 f4 h5 g4+ Ke6 a4 d5 f5+ Ke5 a5 d4 a6 d3 Ka5 Kd4 a7 e5 b7 d2 f6 Ke3 g6 h4 g5 h3 g7 h2 f7 Bd7 Bd3 Na6 b8R Rh4 Qb3 Nf6 g8R Kf2 Qb4 d1N Na3 e3 Rg6 e2 Be4 Rf4 Nc4 Nc3 Nf3 Ne8 Nd6 Nc5 Nc8 Nd6 Nd4 Ncb7+ Ka6 Nd8 Ra5 Na2 Bb2 Rf3 Rc1 h1Q Rc4 Qh3 Bc1 Be7 f8Q Rf7 Bd2 Qa3 Bf4 Rg7 Qf5 Rf7 Nb6 Ne6 Rh8 Nd8 Nc8 Ne8 Qb2 Bb4 Qb3 Bc3 Qb4 Rb8 a8B Nd6 Bc2 Rb7 Be4 Ra7+ Kb6 Qa4 Ra6 Kg1 Ne6 Nc1 Bg3 Qb3 Bf2+ Kf1 Ra1 Ra2 Bc5+ Ke1 Nd4 Rc2 Ra5 Na2 Ka6 Qb2 Ba7 Qa3 Qe6 Kf1 Bb8 Kf2 Qf5+
1R3qn1/R1Prb1p1/Np2QB1B/3QK3/1n5P/r5Q1/pQq2kp1/NN4b1 b - - 0 1 legal: proof: e4 f5 exf5 c5 a4 h5 b4 Nc6 bxc5 Nb8 g4 hxg4 c4 d5 a5 b6 c6 Na6 c5 Bb7 Bc4 Nb8 a6 dxc4 axb7 Qd4 Nf3 Qd7 Ng1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 d4+ Kh4 f4 a5 f6 e5 c7 g3 c8Q g2 f7 a4 f5 a3 f6 c3 d5 c2 d6 Qe7 d7 Rh5 d8B Qe8 c6 Bc5 f8Q Be3 f7+ Bg5 c7 Ra7 Qe6 Rh8 Qfd6 Na6 f8Q Nb4 b8N Be7 Bh6 c1Q Na6 Qc2+ Q1d3 Qf7 Qdd5 Qff2 Qe8 Qf8 Qeb5 Ra8 h3 Ra7 Nf3+ Kg3 h4 Kf2 Nfd2 Ra8 Nb3 a2 Rh3 Nf6+ Kf5 e4 Ke5 e3 Qg6 Ng8 Qg3+ Kg1 Qe2 Ra7 Qed2 e2 Qdc3 e1B Qb2 Bg5 Bf6 Bf2 Qgg4 Kf1 Re3 Ra8 Qg3 Bg1 Rc3 Rd8 Rc5 Rd7 Ra5 Qf2 Nac5 Qc2 Ra7 B5e3 Na6 Bc5 N1d2+ Ke2 Rf1 Be7 Rf5 Rh7 Na1 Rh8 Be3 Rh5 Bh6 Rg5 Nb1 Rg4 Qh2 Rg3 Rf3 Rh3 Ra3 Rb3 Qg3 Rf3 Ra4 Ra3 Ra8 Kf1 Rb8 Ke2 Nc5 Kf1 Ra7 Ke2 Na6 Kf1 Qgh3 Kf2 Qg3+
b1QQ2r1/1NQ2nQ1/1k3nNR/1Bb1pp2/Pqq1BP1q/8/2pR1p2/K3N3 b - - 0 1 illegal: No possible last move, all moves rejected
1qqb2K1/1B6/1rRpNp1k/1qR2B2/3PQ2P/pN1pn2Q/R3N1n1/1bR5 b - - 0 1 legal: proof: f4 b5 d4 c5 a4 e5 axb5 a5 Qd3 c4 fxe5 cxd3 g4 f6 g5 h6 g6 Ke7 Bg5 hxg5 Kd1 Ra6 Ke1 Re6 Nc3 Ke8 Nb1 Re7 Nd2 Rf7 gxf7+ Ke7 Nb1 Qc7 Nh3 Qb6 Ng1 Qd8 Kd2 g4 Kc3 g5 Kc4 a4 Kd5 g3 b4 a3 e4 d6 h4 g2 c4 g4 c5 g3 c6 Rh5 c7 Rg5 b6 Rf5 b5 Rh5 b7 Bh3 c8R Rg5 b6 Bf5 e6 Bh3+ e5 Nh6 Rc5 Rf5 Ne2 g1Q Ra2 g2 Nd2 Nc6 b8R Bg4 b7 Qc8 Nb3 Nd8 Ra8 Qh2 b8Q g1Q Bh3 Qb1 Rhc1 Bh5 Ra6 Ng4 Rac6 Ne3+ Ke4 Rf1 Bf5 Qg3 Qb5 Qg8 Qa5 Qb2 Qe1 Rh1 Qg3 Bf3+ Kf4 Bd5 Qh3 Rd1 Na5 Qb5 Nb3 Bc4 Ke4 Rd2 Kf4 Rb2 Ke4 Bg7 f8N Ke8 e7 Kf7 Ne6 Bf8 Kf4 Qh8 e8B+ Kg8 Ke4 Be7 Bh5 Qcb8 Bf3 Kf7 Ng5+ Kg7 e6 Kh6 Bg2 Qe8 Kf4 Qd7 Ke4 Qdc8 Bf3 Bf8 e7 Ne6 e8Q Nf4 Qe5 Bf7 Ne6 Nfg2 Qd5 Be7 Qe5 Nf1 Kd5 Bd8 Qe4 Qa4 Na5 Rb6 Nb3 Qb5 Raa1 Bh5 Ra2 Qd7 Ng1 Bc7 Nd8 Qa8 Qe6 Rb7 Ra6 Qb8 Qe8 Qdc6+ Ke6 Nfe3 Ke7 Ba5+ Kf8 Qcc8 Kg8 Bg4 B3e4 Bd1 Ne2 Bc2 Bc6 Bb1 Qe4 Rd7 Ba8 Rb7 Rac6 Bc7 R5c2 Rb6 Bb7 Qa5 R2c5 Qa4 Kf7 Qb5 Ne6 Bd8 Kg8
1q4k1/rrN1N3/1P3pB1/P3RB1n/N1ppRb1p/3Q1nq1/B1K4n/2NQ4 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 d4 b5 h4 c5 d5 g5 hxg5 Bb7 Bb2 Bc6 dxc6 Bh6 Ba3 Kf8 cxb5 Ke8 b6 Bg7 b5 Bf8 Bb4 axb4 Kd2 h5 g4 d5 a4 h4 e4 b3 c7 f3 c8B f2 a5 f6 b7 Kf7 e5 d4 e6+ Kg7 b6 b2 e7 Ra7 e8N+ Kf7 g6+ Ke7 g7 Kf7 g5 Be7 Bd3 f1N+ Kc2 Ra6 Nc7 Nh6 g8N Ra7 Ne2 Nf5 Nbc3 Ng7 Bcf5 Nh2 Na4 Nc6 b8Q Ne5 Re1 Nh5 Nc1 Nef3 Re4 Bd6 Ne7 Bf4 g6+ Kg7 Qb7 Rh7 Qa6 Qb8 Qb5 Kf8 g7+ Kf7 g8B+ Kg7 Ba2 c4 Qb3 Rb7 Nc8 Kg8 Re5 Rd7 Bg6 Re7 Bdf5 Ra7 Na8 Reb7 Ne7+ Kg7 Nc7 Kf8 Qdd3 b1Q+ Kd1 Qb2 Re4 Qa3 Kc2 Qd6 Qd1 Qa3 Qbd3 Kg7 Rb1 Kh8 Rb5 Kg7 Nc8 Kg8 Rbe5 Qc3+ Kb1 Qe1 Kc2 Qg3 Ne7+
2bqnrr1/1BPq4/Q2nNkp1/Q3p3/1Q2RpP1/QK2p3/N1R5/3B1rR1 b - - 0 1 legal: proof: d4 b5 g4 c5 dxc5 h5 f4 h4 a4 e6 axb5 Ke7 f5 Kf6 Bf4 Be7 Bg3 hxg3 e3 d5 e4 Ke5 f6 dxe4 fxe7 Kf6 e8R a5 b4 e3 h4 g6 c4 a4 h5 a3 c6 g2 c5 a2 c7 Kg5 h6 f5 h7 f4 c6 Bd7 c8B Ra6 b6 Qc7 b5 Qd6 b7 Ra8 c7 Qb6 Qb3 Ra6 Kd1 Qa5 Kc2 Kf6 b6 Nh6 Nc3 Kg5 Nf3+ Kf6 Ng5 g1Q Be2 Qa3 Bd1 Qf1 Rh2 Qa5 Qa3 Rf8 Kb3 Ra8 Rc2 Nf7 Rb1 a1R Na2 Rg8 Re7 Nd6 h8Q+ Rg7 Rbc1 Qf5 Qh5 Rg8 Re8 Qe1 Re7 Qd2 Rb1 Nc6 b8Q Nb4 b7 Nd5 Qba7 Qd4 b8Q Qd2 Ba6 Bc8 Bb7 Qd4 Be2 Qd2 Rg1 Rf1 Bd1 Rf8 Qh2 Rg8 Qe2 e5 Q7a5 Rf8 Qea6 Qd7 Ne6 Qd8 Rh7 Qd4 Rhh2 Rg8 Rhd2 Qa4+ Kb2 Qad7 Rd4 Q8e8 Qb3 Ke7 Rcd2 Nf6 Bg2 Bb7 Qba3 Kf7 Kb3 Qee7 Qc4 Ba6 Qbb4 Raf8 Bd5 Qed8 Rc2 Nfe8 Re4 Bc8 Bb7 Kf6 Qca6
4nR2/1p1N2Q1/1P4b1/1Rqqb1K1/p7/2r1BR1P/rpp1R2r/BNk2Q1N b - - 0 1 illegal: No possible last move
n6Q/kp4Q1/1pqR1NnB/2p1R1PB/Rn5p/3R4/PNr1b2K/q2Qr3 b - - 0 1 illegal: No possible last move, all moves rejected
Q7/3pn1p1/2n2Qbp/P1P1kb2/BRr4Q/rR1B2bQ/1Kp1nN2/3NR3 b - - 0 1 illegal: No proof kernel
5rr1/pqkB1Rr1/1Q4nN/N5Q1/2PQpP2/K3bn1B/1Q1pr1p1/R6B b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 Kd2 h6 fxg5 f4 g6 f3 g7 f2 g5 Bb7 g6 Bf3 exf3 Qb6 Ke2 Qc7 Bg5 hxg5 Kd2 Qd8 Kc1 d5 h4 Kd7 c4 e5 b4 d3 Kb2 d2 h5 d4 h6 g4 h7 g3 b6 d3 b5 Na6 f4 Qb8 b7 Qe8 b8Q Nf6 g8B Nh5 b6 Bc5 g7 Qe7 b7 Nc7 Qg4+ Ne6 Nf3 d1R Nh4 Rc1 Nf5 Nf8 Nd2 Be3 Bd5 Re1 g8B Re2 Bh3 f1R Qg5 Ng7 Nh6+ Nf5 Rh2 Rff2 Bh1 e4 Be6+ Kc6 Qd8 Rg2 b8Q Rg8 h8Q Ng6 Qhd4 Qb7+ Ka3 Nfh4 Nb3 d2 Qb2 Rg7 Qdd4 Nf3 Qbd8 Rb8 Q8f6 Kc7 Na5 Rg1 Bd7 Rbg8 Bhg4 g2 Rh5 Rb1 Bh3 Kb8 Qbb6 Rb5 Qb2 Rf5 Qfd4 Rff8 Qg4 Rgf7 Rf5 Re7 Qg5 Reg7 Qa6 Kc7 Rf7 Bg1 Qaf6 Be3 Qfb6+
1QbrB3/pQQ5/2b1nK2/P4p1N/1R2q3/2PbB2R/2ppBqQ1/3kq1N1 b - - 0 1 legal: proof: c4 b5 f4 bxc4 f5 c5 b3 c3 f6 c4 Ba3 Na6 Kf2 Rb8 Bb2 exf6 Qc2 f5 Qd3 f4 Qg3 c2 Bc1 c3 Ba3 c1Q Qd3 Qd1 Qc2 Qc1 Qd1 c2 Ke1 Bb4 Nc3 Bd6 Nb1 Bf8 g4 f5 g5 Be7 Bc5 Rb6 Bb4 Rc6 Ba3 Rc3 dxc3 Kf8 Bh3 Kf7 Bf1 Ke8 h4 Bf6 Bf8 Nc7 Ba3 Ne6 gxf6 g5 Nf3 g4 Ng1 Ng5 hxg5 Qa5 Be7 Qc7 Ba3 Qd8 Kf2 Kf7 e4 Kg6 e5 d5 e6 h5 b4 f3 Kg3 f2 Kh4 g3 f7 d4 f8Q d3 b5 g2 e7 Qb6 e8B+ Kh7 Bc5 Nh6 a4 Qe3 a5 Nf7 Ra4 Kg6 Qe7 Qe4+ Qg4 Qbe6 b6 Qe1 b7 Q6e4 b8Q d2 Qeb7 Rf8 Q8c7 Rg8 Na3 Rh8 Nf3 g1Q Be3 Rg8 Nc4 Qg2 Bd7 Nd8 Rh3 Ne6 Nd6 Rd8 Ne8 Qg1 Rb4 Qh2 Be2 Qhf4 Ng1 f1B+ Rg3 Qff3 Ng7 Qff2 Ba6 Bd3 Qgf4 Kf7 g6+ Ke7 Be8+ Kf6 Kh3 h4 Qf3 Rd6 Nh5+ Ke5 Qbb8 Kd5 g7 Rd8 g8Q Rd7 Qg2 Rd8 Kh2 h3 Qgh7 Qef3 Bc4+ Ke4 Ba6+ Bc4 Qcb7+ Kd3 Qhc7 Qg4 Nf3 Ke2 Ng1+ Kd1 Bab5 Ba2 Bf1 Bc4 Rf3 Bd3 Rg3 Qe4 Rf3 Qfh4 Rg3 Qe2 Rf3 Qe7 Kg3 h2 Kh3 h1B Rg3 Qc5 Rf3 Nf4+ Kh4 Qe1+ Kg5 Ne6+ Kf6 Qb6 Rh3 Qc5 Bg5 Qcf2 Be3 Qc4 Qg5 Bc6 Qg2 Qe4 Be2+
nnr1Q2r/k1pQ4/Pp2B3/2R2r2/N4n2/ppP4R/R1RB1qq1/K2NB3 b - - 0 1 illegal: No proof kernel
R3Q2r/3n4/rpKN1ppB/P1R1pr1B/Q1Br4/N2B4/q1q4P/Q2b3k b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 h5 gxh5 a5 e3 axb4 Bg2 d3 Bf1 d2+ Ke2 d5 Kf3 e6 Bd3 d4 Bf1 d3 Kg3 Bc5 Kg2 Bd4 exd4 Kd7 Qe2 Ke7 Qd1 Ke8 f4 e5 f5 Nd7 Kf3 Nf8 Kf2 Ne6 fxe6 Ra3 Qg4 Ra6 Qd1 Ra8 Ke3 Ke7 Ke4 Kd6 c4 b3 a4 f6 d5 b2 h6 b6 c5+ Ke7 d6+ Ke8 Kd5 Rh7 e7 Kf7 c6 Kg6 e8B+ Kf5 d7 Kf4 c7 Ba6 c8B Rh8 h7 Qc7 d8Q Qc2 Bh5 g6 Na3 b1Q Qe8 Ne7+ Kd6 Qbb2 Be6 Nc6 Bc4 Qa2 Nf3 Nb8 Nd4 Nd7 Nf5 Bb5 Kd5 Ra6 Nd6 Ke3 Qa8 Kf2 Qg4 d1R Bh6 d2 Bd3 Rb1 Rc1 d1R Qh4+ Kg2 Qd4 Re8 h8Q Kh1 Qg8 Rb2 Qf7 Rh8 Qfe8 Qcb3 Qg4 Rf2 Qd4 Qac2 Ra2 Rf5 Qa1 Ra5 Qa7 Ba6+ Kc6 Qbb1 Rb2 Qa2 Rb5 Bc8 Rc5 Ra6 a5 Nf8 Qad7 Bb7+ Kc7 Bf3 Qa4 Bg4 Kb7 Nd7 Rc8 Be2 Kc6 Bg4 Rd8 Be2 Ra8 Bg4 Bf1 Rd4 Bd3+ Bd1 Rb1 Rh7 Rb5 Rh8 Rc5
1B1KB3/3p1BRp/1npnqNQ1/2n4N/1bq4p/2Q1PkP1/1R4B1/R2r3n b - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 a5 h4 gxh4 b4 axb4 d3 b5 Bd2 b3 Be3 b4 Bd2 Ra5 Bc1 Rb5 cxb5 Ba6 Rh3 Bb7 Rh1 Be4 dxe4 Bg7 Nh3 Bh6 Ng1 Bf8 Kf2 Ke7 Ke3 Ke6 Kd4 f5 a4 f4 a5 c6 a6 b2 b6 f3 b7 f2 a7 b3 a8Q Qg5 Qd3 Na6 b8R Nh6 Ra2 Nc5 g3 Qf6 Bg2 f1N Bf4 Qg5 e3 Qf5 Nc3 b1N Qa5 b2 Nh3 Qg4 Nd5 Nbd2 Nf6 b1Q Rab2 Qa2 Qac3 Nb7 Rg1 Ba3 Rg8 Bb4 Rg7 Nh2 Rc1 Re8 Ra1 Nc4 Qb1 Nf7 Qbc2 Ke7 e6 Nc5 Bb8 Nb6 Nf4 Qf5 e5 Ng4 Qb1 Nf2 N4h5 Qh3 Qg6 Nh1 Ng4 Nb7 Ke4 Nc5+ Kf4 Qc4+ Kf5 Kd8 Kf6 Rf8 e7+ Kc8 Ba7 Kc7 e6 Kd6 e8B Na8 e7 Nb6 Bf1 Kd5 Bb8 Nd6+ Kg5 Rf3 Bg2 Nf5 Kf6 Ke4 Nh2 Qg4 Bf7 Qh3 e8B Qg4 Qh6 Nd6+ Ke7 Qh3 Kd8 Qhe6 Bf1 Rf5 Ng4 Rd5 Ngf6+ Kf3 Qg6 Rd1 Bg2#
r4NK1/prpPB3/Q3pN2/r2bB1kP/4q1rq/RpR2B2/N1B5/2n4Q b - - 0 1 illegal: No proof kernel
rN1q4/pPpn1B2/p7/Q3B2R/p1r1k3/N1Q2BBQ/K2P4/1rqr2Rb b - - 0 1 illegal: Other
4N2r/1b1R1pQ1/kb1p4/rB4Qb/3npBB1/b3Q1P1/2pNRbP1/3Q1K2 b - - 0 1 illegal: No proof kernel
5q1Q/nNk4n/1qB1R3/PQ2pR1p/1bQ1b2P/3p1n2/1pn1B3/1KNBQ3 b - - 0 1 legal: proof: e4 a5 b4 axb4 d4 e5 Bf4 h5 Be3 b5 Bf4 c5 dxc5 g5 Bg3 Ra6 f4 d5 f5 d4 Bf4 gxf4 Ke2 Rd6 Ke1 Rd5 exd5 Rh7 Kd2 Rh6 Ke1 Re6 fxe6 Qd7 Ne2 Qc7 Ng1 Qd8 Kd2 f5 Kc1 d3 a4 f3 g4 f2 c4 b3 h4 f4 g5 f3 c6 b4 c5 Nh6 c7 Bb7 c8Q Nd7 g6 Nf7 c6 Be7 c7 Ba8 g7 Nf8 g8B Bc6 d6 Bd5 Qa6 Nh6 c8Q Bc4 Ne2 Nf5 Na3 b2+ Kb1 Nd4 Nb5 Nh7 Nc1 Nc2 Qe1 Bd5 Be2 f1Q Qc4 Qb6 d7+ Kd8 Nd6 f2 Qab5 Be4 a5 Bf8 Rg1 Be7 Rg6 Bf8 Qa2 Kc7 Nb7 Be7 Qac4+ Bc5 Ka2 b1N e7 Nba3 e8B b3+ Kb2 Qg2 Re6 f1N Ra2 Nh2 Bgf7 Nf3 Ra1 Qg8 Rb1 Kb8 d8Q+ Ka7 Qf6 Kb8 Bc6 Qf8 Qh8 Kc7 Bfe8 Bb4 Bed7 Ncd4 Ra1 Nac2 Kb1 Nf5 Ra4 Nd6 Bd1 Nc8 Ra2 Ncd4 Rf2 b2 Rf1 Na7 Be2 Nfg5 Rf5 Nc2 Bd5+ Bc5 B7c6 Bb4 Bd1 Bh1 Bg2 Nf3 Bf1 Nfd4 Rd6 Be4 Re6 Nf3 Bfe2
3BBK1R/1N2P1R1/1Qrp1N2/2rpR1Nr/3P1Q1n/p2n1n1n/1kp1N3/3n4 b - - 0 1 illegal: No proof kernel
6B1/1Kp1p3/NP2RRn1/5P1b/5n2/N2qR1p1/1pQN1rpb/Q1R2rBk b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 f6 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 Kc5 g5 d4+ Ke4 h4 g3 f4 b3 d6 g2 d7 g4 b6 g3 h5 Ra2 d5 Ra6 h6 Bb7 f7 Ra8 f5 Nc6 h7 Qb8 d8N Qc8 d6 Nh6 d7 Nd4 Nc6 Ra2 d8R Ne2 Nb8 Bg7 f8R Qd7 Be3 Nf4 Bc4 Ng4 Rh6 Ne5 Nf3 Rb2 Rd6 Neg6 Bg8 Re2 Na6 b2 Na3 Ba8 Rc6 Bd4+ Kb5 Rd2 Rf6 Kd3 Qc2+ Ke2 Bf2 Bc5 Be3 Qd5 Rce6 Bb7 Ne1 Kf1 Bf2 Qe4 Rd3 Qe2 Be3 Bf3 Bd4 Bg4 Kc6 Qe3 Kb7 Kg1 Bf7 Rd8 h8Q Re2 Qh4 Bh5 Bg8 Rd6 Qg4 Kh1 Nf3+ Re1 Rb3 Rf1 Re1 Qc3 Be3 Rd3 Nd2 Bd4 Qe2 Bc5 Bd4 Rf3 Qed1 Qe3 Qa1 Qc3 Be5 Bg1 Bd4 Bh2 Bg1 R3f2 Rc1 Qc4 Rf3 Qd3 Rfe3
3r4/p1qBQR1K/p2NR1Q1/Npb1NrPB/1N6/Rppn2k1/6Pn/6b1 b - - 0 1 illegal: Other
1N1NR2K/1N2PQ2/3p2k1/Pp4q1/1BRR2r1/1R1p1r1b/n2p1p2/Q1bB1b2 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 e5 f4 g5 hxg5 a5 bxa5 Qf6 e4 Nc6 Qg4 Nd8 f5 Ne6 fxe6 Qd8 Qh4 d3 Qf2 Qf6 Qd4 exd4 e5 Qd8 Kf2 b5 Kg3 f5 Kh4 h5 c4 d2 a4 d3 g4 d6 e7 Kf7 e8R f4 c5 f3 c6 f2 e6+ Kg6 e7 Bg7 a6 Qd7 c7 Rh6 a7 Bb2 Na3 Kh7 g6+ Kg7 Kg5 h4 Be2 h3 Rb1 h2 Nc4 Be5 Ba3 Qc6 Bb4 Bd7 c8R Qg2 Nf3 Bg3 Nfe5 Nf6 Rb3 Bc6 Bd1 Ng8 Na5 Qe4 Nf7 Rh3 Nd8 Bd5 Rc4 Be6 Nab7 Rc8 a8Q Be5 Re1 Qc6 Ree4 h1B Red4 Rf3 Kh5 Qd5 g5 Bg2 a5 Kh8 g7+ Kh7 Qa7 Bf1 Qc5 Nh6 g8N Nf5 g6+ Kg7 Qa7 Ne3 Nf6 Nc2 Nd7 Beh3 Nb8 Kf6 Kh6 Rc7 Bc3 Nb4 Kh7 Na2 g7 Rc5 Kh8 Kg6 Bb4 Rc6 Re4 Bb2 Qd4 Bc1 Qa1 Qg5 Red4 Rc5 Rbc3 Rcf5 Rb3 R5f4 g8Q+ Kf6 Rc5 Rg4 Rcc4 Kf5 Qd5+ Kg6 Qf7+
2QB1R1R/1pNp1bkR/4Q2p/3bPq2/2pR2np/1B1n3r/2P2B1q/5KN1 b - - 0 1 illegal: No possible last move
1rb3B1/QPpkP1R1/N1Rn4/1R1B1R2/pp1p3p/8/n2bQN1r/K2b3Q b - - 0 1 illegal: No proof kernel
2qQ1Nn1/7B/5qpp/1p4n1/1BP2Q1p/1NBR2RP/1Kpnk2b/1Q2rQ2 b - - 0 1 illegal: No proof kernel
R2bn3/1Prnnpp1/2k1B3/2rp1BN1/QBQr3p/pK5P/4Q3/N1Q3R1 b - - 0 1 legal: proof: b4 e5 e4 b5 d4 exd4 f4 Be7 e5 Bf8 a4 c5 axb5 cxb4 g4 h5 Ne2 h4 Ng1 Qf6 e6 Qe5+ fxe5 Bb7 Be3 Be4 Bf4 Bg6 Bc1 Bh5 gxh5 Be7 Bh3 Bd6 Bf1 Bf8 Kd2 a5 c4 d5 Kc2 d3+ Kb3 d2 h6 Ke7 h7 Kd8 e7+ Kc7 e8Q Ra6 c5 Rc6 e6 Rb6 h3 Rb7 c6 Nf6 b6+ Kd6 c7 Ra7 c8B Re7 b7 Rg8 h8Q Nbd7 Ba3 Kc6 Qg4 d1N Bd3 Ne3 Nf3 Nf5 Qh6 Rh8 Nbd2 Rg8 Ng5 a4+ Ka2 Rh8 Rhg1 b3+ Kb2 Rg8 Bb4 Rh8 Kc3 b2 Nb3 b1R Ra3 Rd1 Na1 Rd2 Bc2 Rd4 Qe2 Nd6 Bf5 Ng8 Qd8 Ne8 Qa5 Nb6 Qaa6 Rc7 Qac4+ Bc5 Kc2 Ne7 Kb2 Nd7 Kc2 Ng6 e7 Rg8 Rc3 a3 Kb3 Nd6 e8Q Ne7 Nf3 Rh8 Qc1 Rh6 Ng5 Re6 Qh8 Ne8 Qhh5 Re3 Qhg4 Red3 Qgf4 Rd2 Re3 Rc2 Re4 Nf8 Bce6 Nd7 Qa6+ Bb6 Qff1 Rc5 Qa4+ Kd6 Reg4 Rc6 Qcc4 Bd8 Qfc1 Rc7 R4g3 Rc8 Qcd3 Kc7 Qda6 Rcc4 Rc3 Rc6 Qad3 Kb6 Rc5 R8c7 Ra5 Rcc4 Ra8 R4c5 Qa7+ Kc6 Qdc4 Nf8 Qa5 Nd7 Qa4+
1Nr1rkN1/3n4/2p1p2B/1R2rp2/1RrB2Pb/pNB1P3/3pn1B1/1K2Q2Q b - - 0 1 legal: proof: d4 b5 a4 g5 axb5 c6 b4 d6 f4 gxf4 h4 Qb6 g4 Nd7 Kf2 Qa6 b6 Nb8 b7 Qa5 b5 Bg7 c3 Bf5 c4 Bd3 b6 Qg5 d5 Bc3 hxg5 Bd2 Rh3 Bc2 Rh5 Ba4 Rh1 Bb5 cxb5 Nf6 Bg2 Nxd5 Bh3 Nf6 Bf1 Ng8 g6 f5 g7 a5 Ra4 h5 Bg2 d5 Rb4 e6 Nf3 h4 Ne5 a4 Qe1 a3 Nd7 Bc3 Nd2 d4 Nb3 f3 Bh6 d3 Ke3 d2 Kd3 f2 Kc2 f1R Kb1 Ne7 g8N h3 e3 h2 Rg1 Rf4 Rf1 h1R Rg1 Na6 b8B Re4 b7 Re5 b6 Nd5 Ba7 Nf4 b8B Nc5 b7 Ne2 Bc7 Kf7 Nb8 Nd7 Bd4 Ra4 Rb5 Rc4 Ba5 Bb4 Rf1 Be7 Rf4 Bh4 Bac3 Rh3 Na6 Rh1 b8Q Rh2 Qd6 Rh3 Nb8 Rh1 Nf6 Rc8 Qd5 Rh3 Ng8 Rh1 Bg5 Kf8 Qf3 Bg3 Qff1 Rh8 Qh1 Bh4 Ba7 Rcc5 Rfb4 Rc4 Bf4 Rh7 Bc5+ Re7 B5d4 Ree8 Bh6+
3nQ3/2N3pp/bNpp1Q1b/R6P/1B3br1/p2RB2b/2KP2R1/1Bn1Rk2 b - - 0 1 legal: proof: c4 a5 f4 e5 a4 b5 g4 bxc4 e4 d6 f5 Qf6 Qc2 Qe6 fxe6 f5 Qd3 Ra7 Qe3 Rb7 gxf5 Ne7 Qf4 exf4 e5 Rb5 axb5 Ng8 Kd1 Ke7 h4 c3 b4 c6 b6 a4 b7 f3 h5 f2 f6+ Kd8 f7 Kc7 b5 Kb6 e7 Kc5 e8R Kd4 e6 Ne7 b6 Ke4 Ne2 Kf3 Ba3 Ng8 e7 Be6 Bb4 Nd7 b8R Nh6 b7 Ne5 Na3 Bh3 Nf4 Nd3 Kc2 Nc1 Bd3 f1B Nd5 Kf2 Nc4 a3 Nc7 Be2 Ra8 Kg2 Rh2+ Kf1 Nb6 Rg8 Bf5 Ba6 Re2 Rh8 Reb8 Rg8 e8Q Be7 f8Q Bg5 Qf6 Nf7 Rb1 Nd8 Rb3 Bh6 Rg2 Rh8 Rc8 Rf8 b8B Rf7 Ba7 Re7 Rcb8 Re4 Rc8 Ne6 Rd8 Rg4 Rd7 Nd8 Re7 Bb5 Ree2 Bc4 Nc8 Ba6 Be3 Bg5 Kb1 Bh6 Nb6 c2+ Ka1 Na2 Rd3 c1B Kb1 Bb2 Kc2 Be5 Ra7 Nc1 Ra8 Bc8 Ra5 Ba6 Be6+ Bef4 Ba2 Bc8 Bb1 Ba6 Re1+
4N1r1/2p2Q2/1Ppr2R1/rp1p4/1pk1B1b1/B1P3RR/KR1N3r/b2B1b1Q b - - 0 1 illegal: Other
1QBN3K/1n1n1rBb/n3Q1Rr/Nbb5/Pqbqq3/2PR4/1BQ2B2/5bk1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 f4 d5+ Kd3 e5 a4 b5 h4 g4 c3 g3 h6 e4+ Kc2 b3+ Kd2 d3 Ke3 b4 Kd4 b2 h7 d2 h5 b3 h6 e3 Nh3 e2 Ra2 e1N Rg1 g2 Qf3 d1B Qd3 Be6 Qc2 Qe8 Nd2 b1B Nc4 b2 Na5 Be2 Ng5 Bb5 Nf7 Ra7 Nd8 Nd3 Be2 Na6 Bg4 Ndc5 Rd1 Rf7 Rd3 Ke7 Ke5 g1Q f6+ Kd7 f5 d4 Bf4 Nb7 Bg3 Bc5 Ra1 Qf8 Bh3 Qg2 Bg4 Bba2 Rg1 b1B Bh3 Bac4 Bg4 Rg7 f7 Nf6 Bh3 Qe7 f8Q Rf7 Qg8 Qf8 Qg4 Bed5 Qe4 Qe2 Qe3 Bg2 Qe4 Bf1 Bg4 Rg8 h8B Rg6 h7 Rh6 Bg7 Ke7 h8Q Nd7+ Kf4+ Kd6 f6 Qe7 Qe3 Kd5 Kg5 Qf3 Qe8 Qf8 Qf4 Qe4 Qb8 Nb6 Bc8 Nd7 Rd2 d3 Rd1 Re7 f7 d2 Rg2 Qd3 Rg1 Ke4 Rg2 Ke3 Rg1 Qh8 f8B Qe4 Rg2 Rf7 Qe6 Kf3 Be7 Qf8 Rg1 Bf2 Ba3 Qb4 Bb2 Bc5 Qd5 Rd6 Qe6 Rc6 Kh6 Ke2 B3e5 Kf2 Rg6 Rb6 Bg3+ Kg1 Kh7 Rc6 Re1 d1Q Kh8 Qdd4 Rd1 Qg4 Qd2 Bf5 Qc2 Qge4 Rd3 Rd6 Rf6 Bh7 Rh6 Rd5 Rf6 Rh5 Rg6 Rh6 Bf2+
QBKB3q/1nn1Q2r/1b2r1Rb/1r2Pb1q/1NqN2N1/2b3P1/B2R1b1k/7N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 f5+ Kf3 Ke5 e4 h5 b6 c5 g6 c3 b7 a4 d3 c4 b5 h4 b6 c2 g7 c3 Qe2 h3 Nd2 a3 Qe3 a2 Nb3 h2 Qf2 Nh6 g8Q Bc5 Qe1 Rh7 Nd4 Ra6 Nge2 Nf7 Rg1 h1Q Ng3 Nd6 Qf8 Qh2 Nh1 Qdh4 Rb1 a1B Rb2 Qf6 Be3 c1B Rd2 c2 Bf2 Qf7 Bh4 Bc3 Bd8 Qf6 Qh4 Qh8 Qhe7+ Be6 Qg8 B1a3 Be2 c1B Bd1 Bab4 Bb3 Ba5 Ba2 Qh4 Nb3 Bf2 Nd4 Bab4 Qgf8 Bc5 Qfe8 Ra5 Q8f8 Na6 b8N Qh6 b7 Nc7 Na6 Rb5 b8B Nb7 Nb4 Bb6 Qfe8 Ra5 Qa4 Rb5 Qa8 Qh2 Ndc2 Qh6 Ne3 Qh5+ Ng4+ Kd4 e5 Bc8 Ke2 f3+ Kd1 f4 Kc2 Bf5 Kb3 Qf7+ Ka4 Qh5 Nh6 Ke3 d4 Ke4 d5 Ke3 d6 Ke4 d7 Ke3 Rd4 Ke2 g3 B1d2 Rg2 Kf1 Rh2 Kg1 Rh4 Bde3 Rg4 Kh2 Rg7 Bfe1 Rg5 f2 Rg6 f1R Rd2+ B1f2 Ng4+ Kh3 Kb3 f3 Kc4 Bh6 Qc5 Ne6 Kd5 Nc7+ Kc6 Rd1 Qe7 Ra1 Bb3 Ra6 Bg8 Bfc5 Be6 f2 Ba2 f1Q Qd6 Bf2 Qe7 Nc5 Kd6 Qc4 Kc6 Nd3+ Kb7 Nc5+ Kc8 Nb7 Qd6 Ne8+ Bdc7 Ba7 Qe7 Re6 d8N Bab6 Ndc6 Kg2 Bd8 Nc7 Nd4 Kh3 Ne3 Kh2 Ng4+
r2Q2b1/qrQ2k1n/5r2/2nKP3/1qB1rRbn/P3r1B1/1N1NB3/2N1BRb1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 c5 Kf3 b5 Ke4 h5 d4 f5+ Ke5 h4 e4 b3 g4 c4 a3 f3 g6 b2 g5 f4 d6 h3 d5 f2 g7 b4 d7+ Kf7 d6 h2 Qd3 f3 Bh3 f1R Kd5 b3 e5 c3 Qc2 f2 Kc5 Qb6+ Kd5 Na6 d8Q Qa7 d7 Nc5 Bg2 Rh4 Ne2 Re4 Nd2 b1R Bf3 b2 Nc4 Be7 Rg1 h1N Bf4 Ng3 Nc1 Nf5 Bg3 Nh4 Be2 Re3 Qh7 c2 Rg2 Re1 Rh2 f1B Rf2+ Nf5 Rf4 Nf6+ Kc6 Nh4 g8N+ Ke6 Qg7 Nh7 g6 Bh3 Nf6 Bg4 Ne4 Ba6 Na2 c1R Ned2 Rcd1 Nc1 Bf8 Nb6 Bc4 Na4 Rf1 Be1 Rff3 Bg3 Rdf1 Be1 Re4 Bg3 Rfe3 Be1 Nf6 Qh7 Bd6 g7 Kf7 Bg3 Bc7 Be1 Bb6 Bg3 Rd4 Qc2 Rde4 g8B+ Kg7 Qc3 Nh7 Qa5 Bb3 Bgc4 Rff3 Qc7 Kg6 d8B Rf1 Ba6 Bg8 Bf6 Rff3 Qd8 Kf7 Kd5 Rb3 Bac4 Rfe3 Nd3 Rf1 Nc1 b1Q Nb2 Rb5 Nd1 Qb4 Nb2 Qe7 Rb1 Ba7 Qac7 Rb7 Ncd3 Rf2 Rf1 Bb6 Nc1 Qd7+ Qd6 Qda4 Qc6 Qa7 Qcc7+ Nd7 Nf3 Nf5 Bh2 Rc3 Nd2 Rff3 Bg5 Bg1 Bh4 Rce3 Be1 Rf2 Bg3 Rff3 Qa5 Rf2 Rf3 Nc5 Bf4 Nh4 Bg3+ Rf4 Qab6 Rf6 Rf5 Rf4 Qc6 Rfe4 R5f4 Qaa4 Qcd6 Qa7 Q6c7+
rQ3qN1/1Q1Kn3/B3rN2/2P1RnQP/3k2n1/6Nr/b2Bq1r1/1RbN2qr b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 b4 e5 h4 g3 f4 g4 c4 a4 c5 a3 b6 g2 b5 d3 b7 g3 b6 a2 Bd2 e4 Na3 e3 Qb3 e2 Re1 a1R Nc4 Ne7+ Kd6 Nbc6 b8Q Bh6 b7 Ne5 Qa2 Qf8 Ne3 Ng4 Qg8 R1a6+ Kc7 d5 Nd1 d4 Qa7 Rd6 b8Q Be6 Qab7 Ba2 Qgd5 Re6 Kd7 Rg8 h5 Re3 Nh3 g1R Nhf2 Rg5 Qg8 g2 Qgd5 Rh3 Ne4+ Kg7 Ng3 Kf6 Bc1 d2 Qde5+ Kf7 f6 d3 f5 Rg6 Qe3 Rg7 Qg5 Rg8 Ne3 d1Q Bd2 Qc2 Rb1 e1R Nd1 Re6 Be2 Re1 Rf1 g1Q Rf3 Rg6 Re3 Rf1 Re5 Rg8 Bf4 d2 Ba6 Qe4 Be3 Rg6 Bf4 Qe2 Be3 Kg8 f7+ Kg7 Bf4 Qgf2 Be3 Rfh1 Bf4 Qg1 Be3 Qg8 f8N Qf7 Nh7 Qf8 f6+ Kf7 Nb2 d1N Bd2 Nde3 Nd1 N3f5 Bc3 Kg8 f7+ Kh8 Nf6 Kg7 Qh4 Bc1 Bd2 Qh8 f8N Qg8 N8h7 Qf8 Ng8 Rg5 Nh6 Rgg6 Ng5 Kf6 N5e4+ Kg7 Ng8 Ngh6 Nf1 Rg2 Rd5 Kf7 Qhf4 Ng4 Qg5 Rb6 Kc7 Ke6 Nfg3 Rd6 Nef6 Rb6 Rd3 Ke5 Re3+ Kd4 Kd7 Re6 Re5
br2Nb2/qB2Qnrr/7P/r1Nn2B1/1kP1R3/B3N3/2nK2Q1/qr1R1q1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 Ke7 b4 Kd6 e4 f5 c4 g5 h6 a5 h7 f3 b6 d3 b5 Kc5 b7 d5 h5 f2+ Kd2 f4 e5 f3 e6 d4 b6 g4 h6 a4 e7 g3 e8B g2 Bf7 a3 Qc2 a2 Nh3 g1R Qa4 Nd7 b8B Rg7 b7 Qa5+ Nc3 Ne5 Qc6+ Kb4 Bd5 Nf6 Bg2 f1Q Nb5 f2 Nd6 Qa7 Nf4 Nf7 Rh4 Bg4 Qe8 Bf3 Qe7 Qg1 Be4 f1Q Bh1 Nd5 Ng2 Rhg8 h8Q Rh7 Nf4 Rgg7 Qg8 Bg2 Bc7 Rb8 Bd8 Bf3 Bb2 Bg2 Re1 a1R Rd1 Bf3 Ng2 Ra5 Ne3 Bg2 Kc1 d2+ Kc2 Ra3 Bf3 Ra5 Re4 d3+ Kb1 Ka4 Ne8 Kb3 Ba3 Ka4 Re1 d1N Kc1 d2+ Kc2 N1c3 Rb1 d1R Ra1 Re1 Kd2 Nb5 Rb1 Nd4 Rd1 Rc8 b8N Nc2 Na6 Rb8 Bd6 Kb3 Nc5+ Ka3 Bf4 Kb4 Bg5 Qh2 Bc7 Qe5 Bd6 Qa1 Rf4 Nf6 Bb7 Bc6 Re4 Nd5 Ba6 Ba8 Bb7 Nh8 Qge6 Nf7 Qh3 Nc3 Qg3 Nd5 Qg2 Qb1 Na4+ Kb3 Ba3 Qa1 Rc1 Nd4 Rc2 Rb1 Rc1 Nc2 Rd1 Nc3 Bc1 Nd5 Nc5+ Kb4 Ba3+
1R3r2/1R3r1n/1kbBQP2/nBq1n2P/1bQq1N2/N4q2/2K1bRRB/2nn4 b - - 0 1 illegal: No possible last move, all moves rejected
2bbr1QQ/2rR2K1/N2RP3/8/2qNb1Bq/B3qQnb/1kn2RbP/4r2R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 d5+ Kd3 Ke5 c4 a5 e4 f5 b4 g5 h6 g4 b6 g3 b5 g2 h7 a4 c5 f3 c6 a3 c7 f2 b7 f4 b6 f3 Qd2 a2 Qc3 Ne7 Ne2 g1Q Qc5 Ra7 Qa5 Nbc6 b8Q Nf5 b7 Be7 Bb2 Ng3 Qb5 Nb4+ Kd2 Nc2 Kd3 Re8 Bh3 f1B Qb3 f2 Na3 Bg2 Rd1 f1B Nb5 a1Q Ba3 Qc1 Bg4 Bh3 h8R Bfg2 Rh6 Qf4 Rd6 Qf7 Kd2 d3 Kc3 d2 Ned4 Qgf2 Rdf1 d1B Rd7 Q2f4 Rf2 Bdf3 Qa8 Bg5 b8R Qde7 Qc4 Qe3+ Qd3 Qef6 Rb6 Qh6 Rbd6 Bd8 Qb8 Qh4 Qa8 Ba6 c8Q Rc7+ Qc6 Qe6 Qb8 Bc8 Qc4 Rc6 Nc7 Qf7 Na6 Rc7 Qc5 Qe6 Rc6 Qg8 Qf8 Qe6 Qg8 Qf7 Ne6 d4+ Kc4 Qff4 Qf1 d3 Nd4 d2 Qb2 Rb7 Rcd6 d1R Qe2 Re1 Qd3 Qf7+ Kc5 Kf4 e5 Qe6 Qe2 Ke4 Qa1 Qa2 e6 Ke5 Qed1 Bc6 Qf3 Rc7 Qe2 Ke4 Qf3+ Kd3 Qb2 Qb1 Qb8 Kc3 Qh8 Qc1 Qg8 Bb5+ Kd5 Bd3 Qh8 Be4+ Ke5 Qh6 Re7 Qh7 Kf6 Qh5 Kg7 Qh4 Bb4+ Kb2 Red7 Qd1 Qa8 Qde2 Qg8 Qc4 Ba3+ Ka2 Qd5 Ka1 Qh5 Kb1 Qhh8 Ka1 Bb4 Kb2 Ba3+
Nbrknb2/3n2r1/qBP1Br1B/2nB4/1K1n4/N3nP2/2bQ1Q1q/N5RR b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 g4 d5 b4 h5 c4 a5 b6 e4 b7 e3+ Kd3 a4 b5 e2 f6 e1N+ Kd2 a3 f3 a2 g5 h3 b6 h2 c5 h4 c6 h3 g6 d3 Kc3 d4+ Kc4 d2 g7 d3 Nc3 Rh7 Nce2 Nd7 b8Q Nc2 b7 Qb6 f7+ Kd8 Qf4 Nd4 b8B Ngf6 g8B Rg7 Nc3 Ne8 Qe2 d1N Nb1 d2 Qf2 Nc3 Na3 d1N Ba7 Ne4 Q4d2 Nec5 Ne2 Qa6+ Kb4 Ne3 Rb1 a1B Bb6+ Ke7 Rg1 h1R Bg2 h2 Bh3 Rb8 Be6 Bb2 Nf4 Ra8 Ng2 Ba1 Ne1 Bb2 Ba7 Kd8 Nec2 Ba1 Rg4 Rd1 Rg1 h1Q Bd5 Bb2 Na1 Qh2 Rh1 Rdg1 Be6 R1g6 Bb6+ Qc7 Bd5 Rf6 Be6 Ne2 Bd5 Be5 Rg1 Nd4 Rh1 Bfd6 f8N Rb8 Bge6 Bg3 Ng6 Bf8 Ne5 Bh2 Nec4 Ra8 Ba7 Qf4 Rg1 Qh4 Rh1 Bb8 Nb6 Qh2 Rg1 Qf1 Rh1 Ba6 Rg1 Bd3 Rh1 Bc2 Rg1 Bg3 Rh1 Rc8 Na8 Bc7 Bb6 Qa6 Qd1 Ng2 Bh6 Ne3 Qde2 Be4 Rbg1 Bc2 Ba7 Bg3 Qd2 Bb8 Bb6+
qR1K1Q1n/Q6k/1PB2Qqq/2b1N3/Nr2Bnb1/R1rP2r1/6nB/1rr3Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 f5+ Ke5 Kf7 g4 Kg7 b4 h5 e4 f3 d3 h3 g5 f2 d6 f4 d7 h4 Ke6 c4 b6 a4 e5 a3 b5 f3 b7 h2 b6 a2 g6 h3 Be2 f1R Bf4 c3 Qc1 f2 Qb2 c2 Na3 c1R Qb5 Qe8+ Kf5 Rc3 e6 Bc5 d8Q Ra4 Qb4 Na6 b8Q Rb1 Qa7+ Nc7 Nb5 f1N Nf3 Nh6+ Ke5 Rh7 e7 Bg4 Rg1 h1Q Bh2 Qf7 e8B Ne6 Bc6 Ne3 Qf6+ Kg8 g7 Ng2 Kd5 Qg6 Ne5 Nf7 Bf3 Nh8 Be4 Rh6 Re1 Kh7 Qd4 Rab4 Qg1 Rh5 Rf1 Rg5 Rf5 Bd4 Kd6 Nef4 Ke7 Bc5+ Kd8 Rbc1 Nd6 Rcb1 Ndc4 Rbc1 Nb2 Rb1 Bg3 h2 Na4 Rbc1 Rb1 a1R Rb3 Rab1 Ra3 Ne2 Rf2 Nef4 Re2 Ne3 Re1 Qf3 Re2 h1Q Bh2 Neg2 Rc2 Rcb3 Rc4 Rbc3 Rd4 Qe3 Rd7 Qh3 Rb7 Qh6 Rb8 Bd7 Rb3 Rg3 Ra3 Bg4 Bf5 Qh4 Ba8 Ne3 Bb7 Qc6 Be4 Neg2 g8Q+ Kh6 Qe8 Kh7 Qf8 Qh6 Bc8+ Qb7 Bd7 Qa8 Bdc6+
1qr1q1qN/4B2N/1Pb3nk/1N3rn1/1N1Q1P2/1rrrR3/Bb2K1n1/R4RQ1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kg6 f4 e5 b4 c5 d6 h5 g5 a5 b6 h3 d7 h2 d5 h4 d6 e3 b7 a4 b5 h3 b6 a3 Qd4 e4 Qb4 c4 Nf3 e2 Qc3 a2 Qd2 c3 Bg2 c2 Na3 Ne7 Bb2 c1R+ Kf2 e1N Nc2 e3+ Ke2 Bg7 Nb4 Rf8 Bf6 Na6 b8R Nc7 Rf1 h1R Nh2 Ne6 Nc6 Bb7 Rc8 Rc3 Nf3 h2 Na7 Bc6 Nb5 Ra5 Rc7 Qb8 Qd4 Rc8 d8N Kh7 d7 Ng6 Bh3 Ng2 Nf7 Rg1 d8N h1R Bg4 Rh3 Nh8 Raa3 Rb7 Rab3 Be7 Rgh1 Ra7 R1h2 Rae1 a1Q Ra6 Qb1 Ra1 Be5 Bf5 Qa2+ Bc2 Qaa8 Bb1 Rh5 Ba2 R2h3 Nb7 Bf6 Nc5 Rd3 Na6 Bg7 Qd5 Bb2 Nb4 Rg3 Qd4 Rdc3 Kd1 e2+ Kd2 N6h4 g6+ Kh6 g7 Ng6 g8Q Rf5 Ng5 Rh3 Nh7 Ng5 Rf3 Rg3 Ref1 Rd3+ Kc2 e1Q Re3 Rh3 Ref3 Qe6 Re3 Rdc3+ Kd2 Rg3 Re5 Rgd3+ Ke2 Qd5 Re3 Qd7 Qgd5 Qe8 Qf3 Qg8 Qf2 Qa4 Nd6 Qb5 Qg1 Qe5 Nb5 Qee6 Bd6 Qee8 Be7
1QQ3rr/BB2n1rk/P2nq3/4R3/1bP1NN2/1KQb1n2/1b1qN2R/Q3n2n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 h4 g5 c4 Kg7 Kc2 e5 a4 b5 f4 d5 h6+ Kh7 f6 e4 f5 d3+ Kb2 g4 h5 e3 a5 d4 a6 b3 f7 b4 f6 g3 Ne2 d2 Ra3 d3 Bg2 Nd7 Qg1 d1R Qe1 d2 Qf2 Nc5 Bd5 g2 Nec3 g1B Qg2 e2 Rh2 e1N Ne2 Ne7 Be4+ Bf5 Qh1 Nb7 Ra5 Bd4+ Nbc3 Nd6 Bb7 Bd3 Re5 Qd7 Qc6 Qe6 Qc8 Ra7 Ka1 b2+ Ka2 b1N Ne4 Bb2 Kb3 Nc2 Qb8 Rg1 Qc8 d1N Be3 Ra8 Ba7 Nf2 Qb8 Nh1 Qc8 Bg7 f8Q Ne1 f7 Rg6 Qfe8 Bf8 Qa4 Rg7 Qa1 Nf3 Qb8 Na3 Qc8 Nc2 Qb8 Nd5 Qc8 Be7 f8Q Nce1 Qfe8 Rhg8 Qb8 Bf8 Qec8 Ne7 Ka4 Kh8 h7 b3 Kb4 Ba3+ Ka4 b2 Kb3 b1Q+ Kc3 Qc1+ Kb3 Rg4 Qc3 Kg7 h8N Kh7 h6 Qd2 Ng6 Bb2 Ngf4 R4g7 Nh3 Kg6 h7 Kh6 h8Q+ Kg6 Qh4 Rh8 Qf4 Kh7 Qf6 Nc6 Qe7 Nf5 Qce8 Nf2 Qa3 Bb4 Qd6 Nce7 Qa1 Nh1 Qed8 Rc8 Qb8 Nd6 Qdc7 Rcf8 Qcc8 Rfg8 Nhf4+
2n1br2/b1B3b1/P2PNQ2/bk1RqqNn/5rb1/K2Q1Br1/RN4n1/4B2B b - - 0 1 illegal: No possible last move
KNB2rb1/2Qn2nP/k3b1Q1/b2Nqq1R/r3Q1bB/1R4b1/3PnQ1R/3q4 b - - 0 1 illegal: No possible last move, all moves rejected
2rQ2R1/2Rbqq1P/2R2PN1/3B4/2qn2B1/1nnqB3/Rr1Nkb1K/1Qr1q3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 c4 Kf6 f4 d5 Kf2 g5 Kg3 e5 b4 a5 c5 d3 b6 e4 h5 d4 c6 a4 b7 a3 b5 a2 h6 e3 b6 e2 c7 e1Q+ Kh2 d2 h7 g3+ Kh3 d3 Na3 g4+ Kg2 Ne7 Qa4 d1Q Qb3 d2 Bd3 Qc2 Qa4 d1Q+ Ne2 Nbc6 b8Q Nd4 b7 Bd7 c8B Nd5 Bc4 Qdd3 Qb3 Bc5 Nb1 Nc3 Bd5 Qe7 Be3 Qc4 Rh4 Q2d3 Nd2 Rf8 Qc7 Rb8 Qd8 Bb6 Rc1 a1N Qb1 Nab3 Rh2 Qf2+ Kh1 Qf3+ Kg1 g2 Rc2 Rg8 Ra2 Re8 Rh3 Rh8 Kh2 g1R Rh5 Rc1 Rh6+ Kg7 Rc6 g3+ Kh3 g2+ Kh2 Qf1 f6+ Kh6 f7+ Kh5 f8R Kg4 f5 Qe1 f6 Ba7 Ne4 Kf3 Nf4 Bb6 Ng6 Bc5 Nd2+ Ke2 Re6 Bb6 Rf7 g1Q+ Kh3 Qg4+ Kh2 Qf3 Rc6 Qh5+ Nh4 Ba7 Rg7 Qhf7 Ng6 Be8 Bce6 Bd7 Bf5 Rc8 b8R Bb6 Rb7 Re8 Rg8 Rb8 Qc7 Rec8 Bg4+ Nf3+ Kg2 Na1 Bf4 Bf2 Rba7 Rb2 Qd8 Nb3 Be3 Ra8 Rac7 Rc8 Bf5 Nfd4 Kh2 Qee8 Bh3 Qee7 Bg4+
K2BbNnq/2Bq1P2/2k1P2Q/1N6/4qnBQ/Nr3N2/R2Rrrb1/q3b1q1 b - - 0 1 illegal: No proof kernel
1b1BK3/1RbPNN1r/1q1Q2B1/1B1N4/2bP2Q1/2Bnk2b/nbr2R2/1q2rq2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 g4 a5 g5 f3 b3 h3 b6 f2 g6 f4 d3 a4 d6 h4 b7 f3 d7 h2 Ke6 Kd4 Kf7 c5 b4 h3 b5 a3 g7 c4 e5 c3 b6 a2 e6 c2 Bh6 c1B Bf4 Nf6 g8N Bd6 Bg5 Bc7 Be2 f1Q Ne7 f2 Bd2 Nh5 Nc3 Nf4 Ncd5 Na6 b8Q Nb4 b7 Bb2 Rb1 a1B Be1 Na2 Nf3+ Kc5 Ng5 Kd4 Rg1 h1R Rg2 h2 Bh5 Rg1 Bg6 h1Q Qg4 Ra4 Bd2 Rc4 Be1 Rc2 Rh2 Bb6 Qd6 Bc7 b8B Ba6 Bb4 Bc4 Bd2 Bb6 Bc7 Rh7+ Kf6 Qb8 Bd8 Bc7 Nf7 Qb6 Ba5 Rh6 Kg7 Rh7+ Kf8 Qe4 Ke8 Rh1 Nf6+ Ke3 Bb4 Be5 Bc3 Qf5 Rb4 Bb2 Rg2 Qb1 Rh2 f1B Rf2 Bh3 Rb5 Qc6 Rb7 Re1 d4 Qh5 Bd3 Qb6 Be2 Qf5 Bf1 Bd5 Ba6 Bc4 Bb5 Qd3 Nfd5+ Ke4 Nc6 Qf1 e7 Bb8 Kf8 Kd3 e8B Ke4 Nce7 Kd3 Qh6 Bec7 Qd6 Ke4 Nh6 Kd3 Bh5 Ke4 Ke8 Kd3 Nf7 Ke4 Nf6+ Ke3 Bg6 Nd3 Nfd5+
b3N1nK/qPRBQ2b/4Q3/2r5/rBnkP1Q1/R5Nq/1br3nR/2bQb3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 a5 b3 f5 d6 f3 b6 f4 e3 a4 b7 f2 g5 h3 d3 f3 d7 h4 g6 a3 g7 a2 Bg2 f1N Ne2 h2 Bh3 f2 Nd2 Ra4 Ng3 Nc6+ Kf5 Kd5 Kg6 Bb4 b8R Rh5 d4 Na5 Nc4 c5 Bd2 Qb6+ Nd6 c4 d8Q c3 Qf6 c2 Ne8 c1B Bd7 h3 Rb7 Qa7 Rc7 Nc4 Kf7 Bc3 b4 Bb7 b5 Ba8 b6 Re5 Rg1 h1Q b7 h2 Rg2 B3b2 Bb4 Bc3 Qg6 Be1 Qgg4 Rh5 Rb1 a1B Rb3 Bab2 Kg6 Rf5 Kh7 Rg5 Kh8 Re5 Rg1 Qg2 Rd3 h1B Ra3 Qf3 Rg2 Rg5 Nh5 Qh3 Rh2 Re5 Qe6+ Ke4 d5 Bf3 d6 Be2 Qd2 Bd3 Qd1 Bc2 Qh6 Rc5 Ng3+ Ke5 Qh4 Bh7 e4 Nfe3 Qdg4 f1R Qe7+ Kd4 Qge6 Nh6 g8Q Ng2 Qgg4 Rff5 Bc6 Rfd5 d7 Ng8 d8Q Rd6 Bd7 Rdd5 Kg7 Rf5 Kh8 Rf2 Qf8 Re2 Qf1 Rc2 Qde7 Rh5 Qff3 Rc5 Qd1+
1qR1K1N1/1P2Qr1b/2P2Nb1/nrQ4r/Nq1b4/nR1r1n1r/k1B5/R1R1B3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 d5 Kg4 e5 Kh5 a5 g4 h3 c4 a4 f4 d3 b4 a3 c5 e4 b6 e3 b5 d4 f6 Ke6 g5 Kd5 b7 Kc4 f5 h2 b6 a2 f7 e2 g6 e1Q f6 Qb4 g7 Ra7 Ne2 d2 Qa4 d1B Qa5 Kb3 Qb5 d3 Bb2 d2 Nc3 Bc2 Ne4 d1R Bh3 Bf5 Bf1 Bg6+ Kg5 h5 Bg2 h4 Bf3 h3 N2c3 Nh6 g8N Ng4 Rc1 a1N Na4 Rd3 Bc3 Bg7 f8R Ne5 Bd1 Nbc6 b8R Ka2 Be1 Na5 c6 Rf7 Qc5 Qc8 Rb7 Qb8 Rc8 Rh7 Rg1 h1R Rg3 Bb1 Bc2 h2 Rg1 Rhh3 Rf1 Rc7 f7 Re7 f8Q Rf7 Qfe7 Nf3+ Kg4 Bd4 Nef6 Bh5+ Kf5 Bg6+ Ke6 Rg1 Kd7 h1R Qd6 Rg5 Ke8 Rb5 Qc5 Rh5 Ra7 R1h3 b7 Nc4 Ra6 Nb3 Rb6 Nba5 Rg1 Na3 Rg3 Nh4 Re3 Rd1 Rc3 Nf3 Rb3 Rd3 Qd8 Bh7 Bd1 Qc3 Qc7 Rb4 Q7e7 Re3 Rb5 Qc4 Rbc3 Bbg6 Rb1 Rb3 Rcc1 Red3 Bc2 Rb2 Rb3 Qb5 Rc3 Rb4 Rcb3 Qc4 Qe6 Rb5 Qee7 Qb4 Ra1+
1Q1qb1b1/P1R3Kn/5B2/r2PRQnk/R1Bb3N/4q1R1/1rn5/b3rBNb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 b5 f4 c5 a4 c4 d4 h3 a5 h2 g5 h4 d6 c3 d5 h3 f6 Kg6 a6 b3 d7 b2 f7 c2 Ra2 b4 Ra3 b3 Qe2 Bc5 f8R Nh6 Bg2 Nf7 Qf1 Bd4 f5+ Kh5 Nd2 b1R f6 b2 Kf5 e4 g6 e3 g7 e2 g8B e1N Re8 Ng5 f7 Rh6 f8R Rb6 Rf3 Ra1 Rfe3 b1B Ndf3 Rb2 Rf7 Ra7 Bd2 c1B+ R3e4 Nc2 Nh4 Bb7 Bc3 Bc6 Bh7 Bf4 Qf2 Bfe5 Bf1 Ra5 Bc4 Rab7 a7 R7b3 Bd2 Re3 Bc3 Re1 Rg4 Bg7 Rg3 Ba4 Re5 Bb5 Ne2 Ba4 Rf1 h1Q Ng1 h2 Qf4 Bc6 Qe4 Bf6 Rf4 Qf3 Rg7 h1B Qd3 Qb6 d8Q Be8 Rc7 Nd7 Qb8 Qe3 Qe4 Nf8 Rfg4 Be7 Qf4 Bd6 Kf6 Be7+ Kg7 Bf6+ Kg8 Qd6 Bhd3 Qd8 Qf5 Nh7 Bf1 Na1 Bb4 Bd3 Be7 Nc2 Re6 Bfe5 Bf6 Bde4 Kg7 Bd3 Qf2 Bf5 Ree7 Be6 Qf5 Bg8 Re4 Rb3 Reg4 Ba1 Re4 Bed4 R4e5 Rbb1 R7e6 Rb2 Ra6 Rc5 Ra2 Ra5 Ra4
1rBQ1Qr1/2r1QK2/1P1rQ3/BPq5/n1R5/bb1R2n1/4N1k1/rNrN2rb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 a5 d4 f5+ Kd3 c5 Kc4 h3 b4 f3 e4 h2 g5 a4 g6 f4 g7 a3 b6 a2 b5 f2 Qd2 h4 Qa5 h3 Na3 f3 Rb1 a1R Qb4 Qg5 Bd2 Na6 Rc1 Ne7 g8N Be6 Nh6 Rg8 Ng4 Nf5 Ne2 Ng3 Ne3 Rb8 Nd1 Qf5 Bg2 f1R Nb1 f2 Bf3 Qh5 Bg4 Rg1 Qb3 f1R Ba5 Bf7 Bc8 Rf6 Rc3 Re6 Rd3 Re7 Qa3 Rc7 Qa2 Bh6 Qb3 Bc1 Qa2 Ba3 e5+ Ke7 e6 Kf6 d6 Kf5 Kd5 c4 d7 c3 d8Q c2 Qd7 c1R Qe7 Nc5 Kd6 Kg4 d5 Qg5 Qf8 Qe3 e7+ Kf3 e8Q Kg2 Qee7 Qf2 Ke5 Na4 d6 Qc5+ Kf6 Bd5 d7 Bb3 Nb2 Rgd1 d8Q Rd2 Re1 h1R Nd1 h2 Rf1 Rg1 Rf4 h1B Rc4 Nc3 Kf7 Na4 Re3 Rd6 Rd3 Rcc6 Qb2 Rc7 Qf6 Qd4 Qg6 Qc5 Qe6
1R1qRnb1/B1B4R/4N1Nb/B4r2/1Qn1Kn1q/rQPP4/1qq5/k2r2bB b - - 0 1 illegal: No proof kernel
K6k/QQ2nqbR/B3r1q1/PN3nBN/1n2P3/2n1b1R1/3Rr1b1/1NR3qr b - - 0 1 illegal: No possible last move, all moves rejected
bQQqNKn1/2b1r2R/3Pq1r1/RBq5/B1P5/1B2nNr1/b2QkBr1/2n5 b - - 0 1 illegal: No proof kernel
1r1R2r1/2K1NBn1/P1B1Q2P/kbqb1Q2/6qb/1Rn4B/Q2qNn2/b3B2r b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Ke3 f5 Kf4 b5 e4 g5+ Kg3 c5 d4 Kc7 a4 Kb6 h4 b3 h5 f4+ Kg2 g3 Kf3 b2 h6 g2 e6 c4 e7 b4 e8B b3 e5 g4+ Ke4 f3 d6 f2 Kd5 g3 d7 c3 e6 c2 e7 Nc6 Kd6 Ne5 d5 Bb7 Ra2 Ng4 Rh3 Bg7 Bd2 c1B Qc2 N8f6 Nc3 b1N Nge2 g1Q Qf5 b2 Bf7 g2 e8B Rb8 a5+ Ka6 Rd3 Rg8 Ra3 Nh5 Rd4 Qg5 d8Q Be5+ Kd7 Ng7 d6 Bg3 Qc8 Bh4 Nd5 Nc3 Rd3 b1R Rb3 Bb2 Kc7 Ba1 d7 Qe3 d8Q Qh2+ Ng3 g1Q Bh3 f1B Ne7 Qe4 Rd4 Bb5 Qce6+ B7c6 Rd5 Qc5 Bd7 Rh1 Be1 Qa2 Ne2 Nf2 Bde8 Qg4 Rd6 Ka7 a6 Bg2+ Bc6 Qb2 Kd7 Qd2 Qa5 Bd5 Qa2 Kb6 Qab1 Ka5 Kc7 Nd3 Rd8 Nf2 Qa2+
q1r2R2/1N2R1P1/r7/n1nQ4/N1BPq1n1/q1b2nB1/1RQ1r1k1/RK2bN1b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 d4 Kd6 Kd2 a5 Kc2 h5 e4 c5 g4 f5 g5 a4 b6 a3 g6 h3 g7 f3 b7 f2 b5 h2 b6 a2 Nc3 h4 Be3 c4 Bd3 f1Q Nge2 h3 Nf4 Ra6 Be2 Qf3 Nh5 f4 Rg1 h1Q Kc1 h2 Kc2 Nf6 Rf1 Nc6 b8N Na5 b7 Ng4 Na4 c3 Rc1 a1B Kb1 c2+ Ka2 Bc3 Ra1 c1N+ Kb1 Ncb3 Rf2 Nc5 Nc6 Qh4 b8R Bb7 Bd3 Be7 Bc4 Rc8 Rg2 Qhh3 Rga2 Bh4 Rb2 Bhe1 Nd8 Qfg2 Bg1 f3 Qc2 f2 Ng3 f1N Bf2 Bc6 R8b7 Qf3 Re7 Nd2+ Kc1 Qf5 Nf1 Nf3 Kb1 Q1g2 Bh4 h1R Bg3+ Qf4 Re5 Rh2 Nb7+ Kd7 d6 Qe3 Rd5 Ke6 e5 Qe4 d7 Kf5 d8Q Qh1 Rd7 Re2 e6 Bd5 Bh4 Kf4 e7 Qg3 e8R Bc6 Nh2 Ke3 Rf8 Kf2 Re7 Kg2 Nf1 Qd6 Bg3 Qh8 Rff7 Qf8 Bf4 Qb8 Bd6 Qa8 Bg3 Qf5 Nb6 Nd7 Be5 Nfh2 Nd6 Kh3 Re8 Bh1 Nb7 Qe4 Bg3 Nf3 Na4 Qa3 Rff8 Nc5 Qd5 Kg2 Re7
bBR1r1bq/2P2B1N/R3nB2/R2N2RK/1b1Pb1n1/1n6/brQ3bk/3Q3r b - - 0 1 illegal: No proof kernel
N1BQB1b1/PK2bq2/nn2b1Bb/q1P1N3/r6b/R2b2b1/1Bk2r2/QNR5 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 h5 bxa5 c5 dxc5 hxg4 Kd2 Kf7 Kc3 Ke6 Kd4 Kf5 Kd5 e5 f4 b5 h4 g5 a4 g3 c4 g4 c6 b4 c7 e3 h5 e4 h6 b3 h7 e2 c5 e1B a6 g2 a5 e3 a7 e2 a6 g3 Rh6 b2 Na3 b1B Rd6 Bd3 Nh3 g1B Bg2 Be7 Bh1 g2 Re6 Be3 Nf2 g1Q Bb2 Qg6 Ng4 Bg3 Ne5 e1B Rc1 Qf7 Nb1 Bgh4 Bf3 Beg3 Bh5 d6 Qf1 Bd7 c8B Qa5 Qd1 Bd2 Qa4 Be3 Qa3 Bd2 Qa1 Nf6+ Kd4 Rf8 h8Q d5 Rd6 Qg8 Be8 Be6 Rb6 Qh7 Rb3 Nfd7 Ra3 Nb6 Qg8 Qg7 Qh8 Qf7 Qg8 Kf6 f5 Bh6 Qh8+ Kg5 f6 Kf4 Qg8 Qg6 f7 Qf5 Ng4 Kf3 Ne5+ Ke2 Rc2+ Kd1 Qh8 Rg8 f8N Qf7 Nfd7 Rf8 Rcc3 Qh5 Bg6 Rf2 Qd8 Bg8 Nf8 Qf3 Ne6 Qf7 Nc7 Bf5 Rc2 Be6 Kd3 d4 Ke4 d3 Rc1+ Ke2 Kd4 d2 Ke4 d1B Kd4 Nc6+ Ke4 Nb4 Kd4 Rb8 a8B Bc2 a7 Bd3 Bc6 Na6 Na8 Rb7 Be8 Rb8 Rc4 Kd1 Rc2 Nc4 Rcc3 Rb4 Rc2 Ra4 Rcc3 Ke2 Rc1 Nb6+ Nc4 Rf4+ Ke5 Beg5 Kd6 Be7+ Kc6 Rf2 Ne5 Ke3 Kb7 Ke2 Nc3+ Kd2 Rd1+ Kc2 Nb1 Qb4 Rh1 Qa5 Rc1+
1rkQ3B/r1nN4/1Q1B1N1b/2b3nB/r1R2KbP/1brb4/B1R1Q1P1/1r5q b - - 0 1 illegal: No proof kernel
2N3k1/2BN3B/n2R2b1/RQrn2r1/N1QrPB2/6b1/KN2b2P/br2r1qb b - - 0 1 illegal: No possible last move
n3rqRK/1bBbq3/Qb1q3n/Q3rq1R/2Bq4/1NRP4/B1NPBq1k/8 b - - 0 1 legal: proof: f4 b5 h4 d5 a4 e5 axb5 exf4 h5 d4 h6 d3 cxd3 gxh6 Ra6 h5 Ra1 h4 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Ke5 g4 c5 e4 h5 b4 a5 g5 a4 g6 c4 g7 a3 b6 a2 b5 h3 b7 h2 b6 h4 Bh3 c3 Qf1 c2 Bg4 h3 Na3 Bc5 Ne2 Ra5 Nd4 Qe7 Rg1 Na6 b8Q+ Nc7 b7 Nh6 g8B Bd7 Qc8 Bb6 b8R Na8 Bb2 c1Q Bc4 Qe1 Nac2 Re8 Rc1 a1Q Qa6 h1Q+ Qg2 h2 Nb3+ Bd4 Ba3 Bb6 Bb4 Qd4 Bd6+ Kf6 e5+ Kg5 e6 Kh4 Rc8 Re5 Bc7 Qf8 e7 Qd6 Rf1 Qg1 Qa5 Qgc5 Rg1 Qcd4 Qe2 h1B+ Rg2 Rb5 Qe6 Re5 Bh5 Kh3 Bf7 Rd8 e8B Qh4 Bh5 Qhe7 Bef7 Re8 Rb8 Bb5 Qc8 Bd7 Qca6 Re3+ Kf2 f3 Rg5 f4 Rc8 Kh2 Rcg1 Qee6 Rg8 Qef6 R1g5 Qf6e7 Bb5 Qdg7 Nbd4 Nf5 Bd8 Qdf6 Ba2 Qfd6 Nb3 Nh6 Rc3 Qgd4 Bc4 Bg2 Bg4 Bh1 Bc7 Re5+ Kf1 f2 Bd1 Be4 Ke2 Bef5+ Kf3 Bc6+ Qd5 Bb7 Be2 Bh3 Qa4 Bd7 Qa6 Nf5 Kg4 f1Q Kh5 f3 Qda5 f2 Qd5 Nh6 Qda5 Qa3 Kg6 Qh3 Bf7 f1Q Kh7 Qhf5+ Kh8 Qad6 Bc4 Q1f2 Rh5+
2r4n/1K1Q1R2/3r3r/rBRNnr2/1n1k2P1/B3bRPq/Bqr1b3/RQ5N b - - 0 1 legal: proof: f4 b5 d4 g5 a4 c5 axb5 cxd4 h3 g4 hxg4 e5 Ra6 exf4 Ra2 Nf6 Ra1 Ng8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 d5+ Ke5 h5 e4 f5 b3 a5 g3 f3 b6 a4 b7 a3 Ne2 a2 Qe1 h4 Nf4 f2 Ng2 h3 Bb2 d3 Rh2 f4 Qd2 d4 Nc3 f3 Rh1 h2 Nd5 Nh6 Ne1 Qb6 Ba3+ Qb4 Be2 Ra5 Rf1 h1R Bd1 Na6 b8Q Be7 Bc2 Bg5 Bb1 Be3 Qd1 d2 Nd3+ Kc6 c5 Nf7+ Kf6 R1h3 Ke7 R3h6 e5 Rf8 e6 Nh8 Qa7 Qb5 Qc1 d1N b4 Nb2 Qd1 Rf5 Kd8 Nc4 e7 Ne5 e8B+ Bd7 Qc1 Qb7 Qc2 Kb5 Qd1 Kc4 b5 Nb4 b6 Bb5 c6 Qh7 Kc8 Rf8 N3f4 d3 b7 d2 b8R Rf5 Qd7 Kd4 c7 Be2 Qb3 d1R Kb7 Rc1 c8R Rc2 Ra8 Rff6 Rc7 Rd6 Nd3 Qg7 Rc1 f1Q Nf2 Qh3 Nh1 f2 Rf1 Rac5 Ra5 R5c4 Rac5 Qf6 Rg1 f1R Rg2 Rf4 Rf2 Rf5 Rf3 R4c3 Qe6 Rc4 Rf7 R4c3 Qd7 Rc4 Rb5 Rc8 Rc5 Rc1 Bd3 Rc2 Bc4 Qg7 Qc7 Qf6 Beb5 Qg7 Qd7 Qf6 Rg1 a1R Qb1 Qg7 Bc1 Ra5 Ba3 Qf6 Ba2 Qe6 Nf6 Qb3 Nd5 Qc3 Qb3 Qb2 Ra1 Rc3 Qc2 Rc4 Qc1 Rc2 Qb1
1BB1r2k/Qn4Nq/BR3K2/3NN1Q1/1r2PPb1/3bB1R1/1n2n3/brbb2n1 b - - 0 1 illegal: No proof kernel
kb1brNnn/B1q3BR/3b1r1R/B1N2brN/n2P4/5P2/3nB1QQ/3nK3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 c5 d4 Kc7 g5 Kb7 d6 h5 g6 a5 b6 e5 b5 a4 d7 c4 g7 a3 f3 c3 Bc4 h3 Ke2 a2 Rh2 h4 Ba3 c2 Bb3 c1B Rh1 e3 Be7 e4 Bd6 h2 Bc4 h3 Be7 Rh5 Kf1 e2+ Kf2 e1B+ Ke2 e3 Bg5 Bh4 Be6 Bd6 Nc3 Qc7 d8B Na6 Bh6 Rg5 Ne4 Nc5 Qc2 Na4 Bc4 Bf5 Nc5+ Kb8 Rb1 a1N b7 Nb3 Qb2 Ka7 b8N Nd2 Nbd7 Rb8 b6+ Ka8 Nf8 Rc8 Be7 Re8 Bd8 Bhg3 Ra1 Bgf4 Ke1 e2 Ra3 Bfe5 Re3 Bf4 Re7 Bfe5 Kf2 e1N Ne2 Ng2 Nf4 Nh4 Nh5 Ng6 Ke1 Nh8 Qc2 Ba3 Be2 Bb4 Qa2 Ba5 b7+ Kb8 Rg1 h1R Qc2 Ka7 b8B+ Ka8 Ba7 h2 Rf1 Rhg1 Qb2 R1g2 Rh1 Rg6 Qc2 Rf6 Qa2 Rg5 Rd7 Ne7 g8Q Bb6 Qg6 Ng8 Rh7 Bf4 Bg7 Ba5 Rf1 h1N Qb2 Nf2 Rh1 Nd1 Qh6 Rgg6 Qg5 Bfe5 Qg2 Rg5 Rh4 Qc6 Rh3 Bb8 Bdb6 Qc7 Rh1 Bd6 Rh6 Bb4 Ba5 Be7 Qh2 Bd8 Rh7 Re4 Qe5 Rgg6 Na6 Rh4 Nf4 Ba3 Bb5 Nc4 Qg2 Bd6 Nc5 Nd2 Be2 Rg5 Rh3 Rhg4 R3h6 Rh4 Nh5 Re4 Qf4 Re8 Qfh2
n2N3R/4kBbQ/N4B1q/q1bb1b2/P1b3B1/QP1N1R1B/rbKnr1q1/8 b - - 0 1 illegal: No proof kernel
3Q3Q/kr4BN/1b1K3b/1B2r1Pn/4RR1n/1P4qr/brQNNN2/3b2nr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb6 d4 f5 e4 a5 g4 h5 g5 h3 d6 c4 d7 c3 d5 a4 d6 c2 Be2 a3 Qe1 h2 Qc3 a2 Nh3 h4 Qc6+ Ka7 Rf1 h1R Ng1 f3 Bd2 c1N Bd1 h3 Bb4 h2 Nc3 f4 Kd5 f2 e5 f3 e6 Rh3 e7 Nf6+ Kc5 Ne2 e8N Nh5 Nf6 Bh6 Nfe4 Qc7 d8Q Bg4 d7 Qg3 Ba4 Be6 Rad1 a1B Nb1 Ba2 b3 Bd4+ Kd5 Be3 Rde1 Bb6 Qc2 Nc6 Bf8 Ncd4 Bg7 Rb8 Nbd2 Nf5 Qh8 Rb7 d8Q Nh4 Ke6 Nc1 Ne2 Rg1 Qd7 h1R Qdd8 Rg2 Kd5 Re7 Kc6 Re5 Kd6 Rgh2 Rg1 f1R Nf2 Qf4 Rg4 Qg3 Rf4 Rg2 Nc3 Rgh2 Re3 Ne2 Ree4 Ng1 Ne2 Rc1 Qb1 Rc7 Qd1 Ba5 Qc2 Rb7 b6+ Ka6 Nd1 f2 Be8 f1B Nf2 Bg2 Bd7 Bf3 Ba4 Rf7 b7 Bb6 b8N+ Ka7 Bb5 Rb7 Nd7 Rg2 Nf6 Rgh2 Nd4 Bd1 Ne2 Qf3 N2g4 Ng6 Nc1 Bf2 Qcc8 Rf7 Nc4 Nh4 Nh7 Bb6 Qc5 Rc2 Nf2 Qg3 Ne2 Rb2 Nd2 Rb7 Qc2
R5n1/n1b1BQ2/b1r5/nBr1bPrR/3NkrbQ/5N1N/BqP4r/3B1K2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 f4 Kf7 g4 Ke6 b4 Kd5 g6 e5 g5 h5 f5 a5 g7 d3 g6 e3 b6 d2+ Ke2 h4 b7 a4 b5 e4 b6 h3 Bg2 h2 Bh3 a3 Nf3 a2 Qg1 d1B+ Kf1 e2+ Kg2 e1R Bf4 e3 Na3 e2 Bc1 Ra4 Kf2 Ke4 Ne5 d5 Nd3 d4 Nf4 d3 Qg3 d2 Nc4 Rh5 Ne5 Qf6 Bg4 Rg5 Qh4 Bd6 Nh3 Bc7 Ba3 Nc6 b8N Na7 Nf3 Qb2 Be7 Ba6 b7 Rf1+ Kg2 e1B Nc6 Ra5 b8Q Rc5 Qb3 Beg3 Ncd4 Bge5 Qf7 Bde2 Qf2 d1R Qh4 Nf6 g8B Rde1 Rc1 a1N g7 Nb3 Ra1 Na5 Ra2 Rg1+ Kf2 Bd1 Bh5+ R1g4 Ra3 Re2+ Kf1 Rf4 Rb3 Rfg4 Rb8 Rf4 Ra8 Rc6 Qa2 Rc5 Bc4 Ng8 Bb5 Re3 Qf7 Rec3 Rg1 h1R Bg4 Nf6 g8B Rh2 Rh1 R3c4 Qe8 Rc3 Ba2 Ng8 Qf7 Rc6 Bh5 R3c5 Ng1 Nc8 Qf2 Rhh4 Ne1 Rh3 Bg4 Rb3 Rh5 Rh3 Bge2 Rh2 Nh3 Na7 Bg4 Bf3 Qh4 Bh1+ Kg1 Bg2 Bd1 Bf3+ Kf1 Bg4+ Nef3
2qQ1n2/1B1Qnn2/6B1/rkPP1n2/1bRN3b/1Q1nR1B1/N2r2b1/Qr3bK1 b - - 0 1 illegal: No proof kernel
1nQr2b1/1K1Nb1n1/2BP4/Rn1q2N1/RnR1R3/Q1Prn2q/1N2k3/2B1n1r1 b - - 0 1 illegal: No proof kernel
1n2k3/2KN4/B1P3NP/1rB1n2Q/Q1bb2rR/Nb2Qn1Q/2r1qbR1/3n2n1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 a5 Kd3 d5 h4 e5 c4 g5 b4 g3 f4 g2 b6 a4 h5 g4 b5 a3 f6 a2 f7+ Kd7 f5 g3 f6 Qe8 c5 Ba6 h6 Ne7 b7 Nec6 Ne2 g1R Qa4 g2 Rh4 Rh7 Na3 e4+ Kc2 d3+ Kb3 e3 b6 d2 Nf4 d1N Ng6 e2 Be3 Bd6 f8Q e1N f7 d4 Rc1 a1B Rc2 d3 Qh8 d2 f8Q Bd3 Qf3 Bg3 Qh5 Bd4 Q8e5 Ra5 Qef5+ Kd8 Qh3 Ne5 Kb4 Rd7 c6 Bf2 Ra2 N1f3 Rb2 Be4 Ba6 Bd3 Ra2 Rad5 Rc2 Bb5 Ka5 Rc5 Ra2 Rc2 Rb2 Bc4 Ra2 Bb2 Bc5 Bbd4 Rb2 Rd5 Ra2 Nbd7 b8N Qe6 b7 Ke8 Rb2 Qg4 Ra2 Qe4 Rb2 Qe2 Ra2 Rh1 Rb2 g1N Ra2 Rh2 Rb2 Rg2 Ra2 Nf6 Kb6 Nfd7+ Kc7 Rg4 Rb2 Ne3 Ra2 d1B Rb2 Rc3 Ra2 Bdb3 Rc2 Nd1 Rd2 Nb6 Nd7 Rc2 b8Q+ Nc8 Bd6 Rb5 Qa7 Nb6 Be7 Ba1 Bc5 Bad4 Ndf8 Nbd7 Qb6 Nb8 Nd7 Qf1 Re2 Bg3 Rg2 Qe2 Qba5 Be1 Qc3 Bef2 Qe3
1b1Q3r/nBQ1nbQq/Pr2n3/1P3QNk/1nN3b1/R1B1Rn2/1B6/1K1n2q1 b - - 0 1 illegal: No proof kernel
K1B1QR2/1N2B1RP/3q3q/nN1qn3/2PNq1rr/5N1q/1Q2b2q/R4kbr b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 c4 d5 f4 g5 h4 g3 h5 g2 b6 e5+ Kb5 d3 b7 d4 h6 d2 f6 Ke3 f7 Kf2 f5 d3 f6 g4 Ba3 e4 Qb3 d1Q Qa4 e3 Qc2+ e2 Rh4 a4 Qb3 e1Q Ra2+ d2 Rc2 g3 Rc3 Qd5+ Kb6 Qc1 b5 d1Q Rh1 Qee4 Nf3 g1Q Be7 g2 Na3 Nc6 b8Q Bg4 Kb7 Qh2 b6 g1R Nb5 a3 Bh3 a2 Qe8 a1Q Qb2+ Qd1d2 Rd3 Qa3 Re3 Bh5 Bc8 Kf1 Re2 Qdf4 Rg2 Qfd6 Rg6 Ra4 Rg7 Na5+ Ka7 Qad3 b7 Ra1 b8N Qcg5 Nc6 Re1 Nfd4 Be2 Nd8 Qdh3 Nb7 Qgg6 Nf3 Qgh5 Bd8 Ne7 Ka8 Ng6 Be7 Ne5 h7 Qh6 Rg5 Rg8 Rg3 Bg7 f8N Rd1 f7 Rd4 Rg5 Bh8 Rg2 Rg4 Ne6 Bf6 f8R Bh4 Qc2 Bf2 Qb2 Rh4 Ng7 Qd3 Nd2+ Ke1 Rg5 Rdg4 Ne6 Q3e4 Rg7 Rf1 Rg1 Bc5 Nf3+ Kf2 Rg3 Rh1 Rg1 Bb6 Rb1 Kg2 Rf1 Bg1 Ra1 Kf2 Ned4 Kg2 Ra2 Kf1 Ra1+
r2N4/1r3P1K/nRP1n3/2N1Q1rN/q1r2Qkb/bn3NB1/n1B5/r3RR1b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 c4 d5+ Kd3 h5 g4 a5 f4 h3 b4 h4 c5 e4+ Kc2 h2 b6 a4 b7 a3 b5 a2 b6 d3+ Kc3 d2 Kd4 h3 Qa4 d1R+ Bd3 e3 Nf3 e2 Re1 h1R Nc3 Na6 b8R h2 b7 Rh5 c6 Nh6 Bd2 Ba3 Bc2 Qa5 Ke3 d4+ Ke4 d3 g5+ Kg7 f6+ Kg6 f7 Rc1 Rf1 Be6 Be1 d2 Bg3 e1B Qb5 d1N Qe5 Qb5 Na4 Nf5 Nc5 Nd4 Rb1 Rh7 f8N+ Kh5 f5 a1N g6 Rg1 f6+ Kg4 g7 h1R g8N Qa4 Rb6 Rc7 f7 Nab3 Re8 Bc4 b8Q Ne6 Re7 Rb7 Qbd6 Ra1 Qc7 Rh4 Nf6+ Kh3+ Kf5 Bd5 Kg6 Rc4 Qcd6 Nc3 Kh7 Na2 Nh5 Kg4 Re8 Bd2 Qb8 Bg5 Re7 Bh4 Re8 Nf4 Nfe6 Rg2 Nd8 Rg1 Nd4 Bh1 Nf3 Ne6 Qh8 Ng7 Ree1 Ne6 Qhe5 Kh3 Bf2 Rg5 Bg3 Kg4 Qbd6 N6b4 Qd2 Na6 Qdf4+
B7/1N1kPQnn/Kb3b2/2Q1qB2/1R5R/B1bP2b1/N6N/1rnrbNqb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 e4 f5 Ke2 a5 b4 c5 h4 g5 e6 c3 e7 c4 b6 g3 e5 g2 d3 g4 h5 c2 b5 c3 h6 f4 b7 f3+ Ke3 f2 h7 a4 b6 g3 Ne2 g1B Bg2 a3 Nd2 a2 Rh4 Bg7 Rb1 a1B Nf3 Qd5 Rbb4 Bf6 Nh2 Na6 b8Q Kd7 b7 Nc5 Qa7 Rb8 Ba3 c1N Qb3 Ne6 Qc5 c2 Bh3 g2 Ng3 Bb2 Ngf1 Bc3 Bf5 Qd6 Ke4 Qc7 Kd5 Be1 Ne3 f1Q Kc4 Bgf2 Kb5 g1B Ka6 Bg3 Qa2 Qg2 Nef1 Be3 Qac4 Qg1 Qf4 Bd4 Qf2 Bdc3 e8B+ Kd8 Qf3 Ng7 e6 Qe5 Bc6 Bd7 Bd5 Bc6 Qh5 Kc7 Qf7+ Kd8 e7+ Kc7 Bg6 Kd7 Bf3 Bg5 Bg2 Nf6 Bh1 Rhc8 h8N Nh7 Bf3 Bf6 Bf5+ Qe6 Qf8 Rc7 Nf7 Be4+ Nd6 Bd5 Bd1 Bh1 Qf7 Rcc8 Be4 Qe5 Bdf3 Ne2 Bg6 c1B Bfe4 Be3 Bgf5+ Qe6 Qc4 Bb6 Qc5 Nc1 Bf3 Rc6 Bg2 Kc7 Bge4 Qe5 Bf3 Rd8 b8N Rd7 Nb7 Rd4 Rb5 Rb4 Bg2 Rb1 Rbb4 Qe6 Bf3 Kc8 B3e4 Rc7 Nc6 Kd7 Rc4 Rc8 Nb4 Rb8 Na2 Rh8 Bg6 Qe5 Rb4 Rc8 Bg2 Rc6 Qe3 Rc4 Qc5 Rf4 Bd5 Rf2 Bge4 Rd2 Bf5+ Qe6 Na5 Rd1 Ba8 Bb8 Nb7 Bbg3 Bg6 Qe5 Bf5+
3rBrB1/Nr1bP1Q1/2Q1R2k/1n1r4/2P2Rnr/bQn2Kb1/qQn5/4B1N1 b - - 0 1 illegal: No possible last move
2R1R1b1/RK1NPb2/2BQrr2/2PBN3/1nbbb1B1/1qn3kr/4nQ1n/B7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 g4 f5+ Kd3 Ke5 Kc4 d5+ Kb3 h5 Ka4 f3 e4 d3 c4 f2 b4 d4 c5 h4 g6 f4 g7 h3 b6 f3 Kb5 a4 b7 d2 g5 Kf4 e5 a3 e6 h2 g6 d3 e7 a2 Nc3 Nf6 g8B Na6 Kc6 Rh3 b8R Nd5 b5 Kg3 b6 Be6 b7 Bf7 g7 Nab4+ Kb5 Ra6 Qa4 d1N Qc2 d2 Rc8 Nf4 b8Q Rf6 Na4 Qd5 Bb2 Qb3 Be2 f1N Qd6 f2 Kb6 Nc3 Bg4 d1B Nf3 Be2 Kc7 Bec4 Ne5 Nfe2 Nb6 Re6 Nbd7 Bd5 Re1 a1R Qd2 Ra4 Ra1 Ra6 Ra4 Rc6+ Kb7 Rf6 Bh7 Re6 g8B Bg7 Be4 Rf6 Qc7 Rce6+ Qc6 Bh8 Ba1 Bg7 Bg2 Be4 Rg1 h1B Ra7 Nh2 Rf1 Bh7 Qcd6 Bh8 Bc6 B1e4 Rd1 f1B Q2d4 Nf4 Rd2 Bc4 Rda2 Bg7 Raa8 Nfe2 R2a7 Bh6 Qd2 Be3 Re8 Bd4 Rac8 Bh5 Bf7 Bg8 Qc2 Rh6 Qa2 Ref6 Bfe6 Bhf7 Bed5 Re6 Qd2 Rhf6 Qe1+ Kf4 Qf1+ Kg3 Qf2+
1RQKb3/1rP2N2/1rQ1r3/N1B5/qrN1rPq1/1QnBb3/2r2Rk1/1Qb2n2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 e5 g4 a5 b4 h3 c4 a4 f4 h4 c5 d3 c6 e4 b6 d2 b7 h2 c7 h3 b5 a3 b6 e3 Ba6 e2 Qe1 d1Q+ Bd3 a2 Qd2 e1R Be2 Ra6 Ba3 Bc5 Nf3 Rh6 Bc1 Ne7+ Kc4 d5+ Kb5 d4 Nh4 d3 Ng6 Nd5 Ba3 Bd7+ Kc4 Qe8 Nh8 Be3 Bc5 Nc3 Nf7 Nc6 b8N Nd4 b7 Nc2 Nc6 Rb6 Qc1 d2 Rf1 h1R b8Q h2 Na3 Rg6 Rb1 a1B Rf3 Bb2 Na5 Qg8 Qb7 Be8 Bd3 Re2 Bb4 Rhe1 Bc5 h1R Qa8 Rhh6 Qc8 Rb7 g5+ Kg7 Qb8 Rgb6 g6 Kf6 g7 Reh2 Nb5 Rg2 Nd6 Ba3 Rb4 Ree2 Qb1 Bc1 Qc8 Rgf2 Qd7 Rfh2 Qc6 Re1 Rg3 Qg4 Rh3 d1R Rf3 Qh7 g8Q Rg2 Ng5 Qd7 Ngf7 Rg6 Qd5 Qa4 Qc6 Ke7 f6+ Ke6 Ne4+ Kf5 Nd2+ Ne4 Kd5 Ree2 Ba6 Nc3+ Kd6 Rde1 Rb3 Rb4 Ke7 Rgf2 Ndc4 Rg2 Qb5 Ke4 Kd8 Rh2 Nh6 Rhg2 f7 Rgb6 f8Q Rh2 Nf7 Rhh6 Qd6 Re6 Qbd7 Rf2 Qc8 Rg2 Rh3 Rge2 Rh8 Kf3 Qc6+ Re4 Bb5 Rh2 Rh3+ Kg2 Rf3 Re2 Nce5 Rh6 Bd3 Re6 Rb2 Na3 Nec4 Rc2 Qa2 Nab1 Qg6 Nd2 Qb3 R4e5 Qge4 Nf1 Rb1 Bf2 Qe1 Re4 Rb2 Bd2 Qb1 Bfe3 Nh6 Rb8 Qd5 R4b5 Qa3 Ra6 Nf7 Bc1 Qc6 Rb3 Ra2 Rbb2 Qb4 Rb5 Ra3 Ra7 Rb3 Rb8 Qa3 Ra6 Rb7 Rb4 Qaa2 Rab6 Qab3 Ra8 Rb8 Ra7 Q3a2 Rab7 Qa3 Bf2 Qab3 Bfe3 Rf2+
1q1nQ1b1/1PNK4/1bBbN1bb/1nP4r/1kBR4/3QB3/2Nrb3/rB2Rq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 a5 Kf4 f5 e4 g5+ Kg3 d5 h4 d3 b4 d2 c4 a4 b6 f4+ Kg2 g3 Kf3 d4 b7 g2 b5 a3 h5 d3 h6 a2 b6 Na6 b8N Bf5 e6 Kd6 b7 Kc5 h7 Nh6 e7 Nc7 e8B Bd6 e5 Nf7 e6 Bg6 Kg4 f3 e7 f2 Bd7 Kb4 e8B Nb5 Ne2 g1B Bc6 Qc7 Bed7 Nd8 Na3 Ra6 Qc2 d1B Rh4 d2 Qd3 Bb3 Bf5 d1B Be3 Ra4 Rb1 a1R Rc1 Bgh2 c5 Bg8 Bfe4 Ra2 Bf5 Rd2 Bfe4 Bhe5 Ra1 Bg7 Bf5 Bh6 Na6+ Ka5+ Bfe4 Qb8 Nc7 Kb4 Rc1 Bc2 Nd4 Bd1+ Be2 f1Q Nde6 Ra8 Nc4 Ra1 Na3 Bb3 Re1 Bd1 B2f3 Be2 Bed5 B6f7 Kf5+ g4 Bc4 g3 Rd4 g2 Be4 g1B Bc6 Bdf4 Bfe4 Bg6+ Kf6 Bgh2 Ke7 Bd6+ Kd7 Bhe5 Rd5 Bc3 Rd4 Ka4 Bf5 Ba5 Bfe4 Kb4 Bf5 Bb6 Bfe4 B8f7 Bf5 Rg8 h8Q Rg7 Qe8 Rh7 Qe4 Rh8 Qd5 Bg8 Bb1 Bhf4 Qe4 Rh5 Qd3 Bh6 Nc2+
2N2RQ1/3rk3/1K1BrRb1/R2r3b/4nQr1/1B1qNbP1/Prqn1b2/N3N3 b - - 0 1 illegal: No possible last move
2K1Qqr1/1Q1B1N1b/1r1b4/qkbRn3/1bR5/2bNPn2/2Q2PR1/2r1QrB1 b - - 0 1 illegal: No possible last move, all moves rejected
b1q1q3/4rB1q/1k3r2/8/N1bBnN1b/qPq1n1bB/1Q2RQP1/2N1N1KR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 c5 d4 Kc7 e5 a5 b3 f5 e6 h5 d6+ Kb6 e7 h3 e8B h4 d7 h2 d5 h3 d6 f3 Bg5 c4 Qc2 c3 Bc4 f4 Bh6 a4 Be6 a3 Ra2 Ra6 Qh7 c2 Qd3 c1B Rd2 a2 Rc2 a1Q Rc7 Rh7 Bg7 Ne7 Bh5 Nd5 Rc2 Ne3 Bg8 Bb7 Rd2 Be7 Bgf7 Qa3 Qe2 Ba8 Nc3 Qc8 d8N Nd7 Nb7 Nc5 d7 Qe8 d8N Ne4+ Ke1 Bg5 Bg4 Bh4+ Qf2 Bb2 Nce2 Be5 Nc1 Bd6 Qg3 f2+ Ke2 Bb8 Ne6 f1B+ Kf3 Bd6 Qf2 Bc4 Nbc5 Qc8 Bd4 Be5 Be8 Re7 Bf7 Bd6 Nge2 Be5 N1d3 Bb8 Ne1 Be5 Rg1 h1Q Nc1 h2 Rf1 Qg1 Bh3 h1Q Re2 Bg5 Bg4 Qh7 Bh3 Qh2 Rg1 Bh4 Rh1 Qhg8 Ng7 Qge8 Nh5 Ka5 b6 Kb5 b7 Rf6 b8Q+ Kc6 Qb4 Kc7 Qd2 Kb6 Bhe6 Qh3+ Qg3 Qf5 Qf2 Qh7 Bh3 Bb8 Qb2 Bd6 Rc2 Bb8 Ned3 Be5 Ke2 f3+ Ke1 Beg3 Re2 Nd1 Kf1 Ne3+ Kg1 Bd6 Qg3 f2+ Kh2 f1Q Nhf4 Bc7 Ne1 Qf3 Qf2 Bb8 Kg1 Be5 Nh5 Beg3 Nf4 Nc2 Ng6 Qc3 Nf4 Ne3 Na4+
B2qq3/2NNbn2/R1q2rQ1/1R6/P2nrkbK/1qPQN3/5Qb1/BbqN4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Kf7 h4 Kf6 f4 b5 Kf2 d5 Kg3 g5 h6 e5 h5 b3 c3 e4 h7 e3 h6 b4 Bd3 g4 Bc2 b2 Bd2 b3 Ra2 d3 Na3 b1Q Bc1 d4 Nc4 e2 Kh4 g3 Nh3 e1Q Rb2 g2+ Nf2 g1Q Ne3 d2 Be4 Ra6 Ba8 d3 Qc2 Qe2 Nfd1 Qgg2 Rg1 Qc6 Rg6+ Kf7+ f6 Ke6 f5+ Ke5 Rg2 Kf4 Rg6 Qa2 Rb1 Bd7 Bb2 Be7 Ba1 Qa3 Qa2 b2 Qd5 Qb3 Qg2 Ke5 Qg5 Be6 f7 Bd5 f8N Bg2 f6+ Ke4 Qb5 Kf4 Nd7 Qe1+ Kh5 Qe8 f7 Qg1 f8N Qe1 Rc1 b1B Rc2 Rb6 Rb2 Qd8 Qd5 Rb4 Rd6 Re4 Qe6 Qe8+ Qg6 Qf1 Nf2 Qc1 Ne6+ Kf3 Nc7 d1B Re6 d2 Rd6 Be2 Re6 d1Q Rd6 Qbb6 Rb5 Qb3 Nfd1 Qa5 Ncd5 Qad8 Nc7 Qb7 Ra6 Nc6 Rc5 Nd4 Rb5 Nf6+ Kg5 Rf8 h8Q Qc6 h7 Ng8+ Qhf6+ Kg3 h8Q Nh6 Qhg8 Bef3 Qc4 Bg4 Qe2 Rf7 Qd2 Rf8 Nf5+ Kf3 Kh4 Nf7 Qd3+ Kf4 Qh7 Ng5 Qfg6 Rf7 Nfe3 Rf6 Qh8 Nf7 Qhh5 Be6 Qhe2 Bg4 Qf2+
1BK3kq/r2B1Bb1/Q1N3q1/r3Qn1P/1B3qP1/2R2b2/1Rb1qqN1/3n2Qb b - - 0 1 illegal: No proof kernel
1B2brr1/1Bk3N1/b1qnR3/bPN1P3/1rr2RQB/2bn4/1QBr1q2/1K2R3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 h5 Kc2 f5 g4 c5 e4 a5 b4 c4 d6 a4 b6 a3 b5 f3 e5 h3 b7 h2 d5 a2 g5 f2 g6 f4 g7 f3 Nc3 h4 Qe1 h3 Nce2 c3 Bd2 Ne7 g8B Na6 b8R Nc5 Bg2 f1R Qc1 f2 Rb6 Qc7 Nf3 Rh4 Be3 Nd3 Ng3 Qc6 Ng5 Rb4 Nf5 Ba6 Qb2 Nc8 Re1 a1B Ne6 Be7 Bh7 Bd8 Rg1 h1B Kb1 h2 Nfg7 Bc7 Bf3 Bg2 Bfe4 h1R Nc5+ Kd8 d7 Nd6 Bf3 Rh2 Bhe4 Bh3 Rg4 Rc8 Rf4 c2+ Ka2 c1R Bg2 Rc2 Kb1 Rcc4 Bh7 Nc1 Bc2 Nd3 Bf3 Be6 Bg2 Bf7 Bf3 Ke7 Bg2 Rg8 d8B+ Kf8 Bh4 Bd8 Rb7 Ba5 Bh1 Rg2 Re7 Rh2 Re6 Rg2 Ref6 Ke7 Bd4 Kd8 Re6+ Kc7 Be3 Nc8 Bd4 Be8 d6+ Kb6 d7 Kc7 Be3 Nd6 Bd4 Rfg1 Be3 f1Q Bd4 Rd2 Bf3 Qa8 Bb7 Rf8 Bdf2 Qc8 Be3 Qf2 d8Q+ Kb8 Qe7 Qc6 Qg5 Kc7 Qg4 Rg2 Ne4 Rg3 Ba7 Rg2 Nc5 Rg3 Qb3 Bc3 Qb2 Qe4 Qf5 Rh3 Nh5 Rg3 Qh3 Rgg8 Ng7 Qef3 Qg4 Qc6 Bb8+
2rqnb2/K1R1rQ2/3q1P2/2Q1r1N1/b2n2k1/BbBBr2N/3Pr2R/N1b4N b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 a5 b4 e5+ d6 h5 f4 e3 g3 h3 b6 a4 b5 a3 b7 e4 b6 a2 Qa4 e2 Qa5 e1R Nc3 h2 Bd3 h4 Ba3 h3 Nce2 Ra7 Rc1 Nc6 b8B a1Q b7 Kg4 f5 e3 Kb5 Be6 d7 Bb3 f6 Nh6 Qb4+ Qd4 Qc5 Nf5 Rc3 Qd6 Rc1 Qe8 d8N Ng7 Ne6 Qed8 Ng5 Ne8 Rc3 Rh5 Rc2 Ra8 Ba7 Rb8 Ka6 Rc8 b8N Nd4+ Nc6 Rh7 Bb6 Re7 Na5 Ba4 Nb3 c6 Qa5 c5 Na1 c4 Qc5 c3 Rc1 Re5 Ka7 c2 Ba5 Bb3 Bc3 Ba4 Rb1 c1B Rb7 Re7 Rc7 Bb3 Nf4 e2 Nh5 Rd1 Ng7 e1R Nf5 R1e5 Ba5 Kh5 Bc3 Rde1 g4+ Kg6 Ne6 R1e2 g5 Kh5 g6 Kg4 g7 R5e3 Ng5 R3e5 g8Q Ba4 N1f3 Bb3 Re1 h1B Ng1 h2 N1h3 Bc6 Ng3 h1R Qf7 Bca4 Rf1 Rg1 Nh1 Rg3 Rf2 Rge3 Rh2
kb2bQR1/1q3R2/qQ1BPqB1/N1n3nb/1Nb3N1/Kb1q4/1Q3rrP/4Q3 b - - 0 1 legal: proof: f4 c5 g4 b5 d4 cxd4 a4 e5 fxe5 h5 gxh5 bxa4 Kd2 a5 b4 g5 e4 d5 c4 Kd7 Kc2 Kc7 Kb2 Kb7 c5 f5 h6 f4 b5 g4 h7 a3+ Ka2 d3 b6 g3 e6 d4 e5 f3 e7 g2 e8Q f2 e6 a4 Bh6 d2 Qeh5 d3 Qe5 Nd7 Bg5 Bd6 Qc2 d1B Nh3 g1Q Bc1 d2 Qe3 Qg2 Qb2 Ngf6 Nc3 Bh5 Bd3 d1B Rf1 Bb8 Qe1 Ne4 Bf4 Rg8 h8Q Ng5 Nd5 Qh1 Rg1 f1B Bg6 Bc4+ Qb3 Ra7 c6+ Ka8 c7 Nc5 Qb2 Bd7 c8Q Be8 Nf2 Rf7 Nb4 Qb7 Ng4 Qd3 Bd6 Rf2 Rb1 Rgf8 Rc1 Rg2 Rc2 Rf1 Rf2 Bc2 Rf7 Rff2 Ka1 a2 Qd8 Bd7 Qf8 Bd1 Qd4 Bc2 Kb2 Be8 Ka3 Bd1 Qb2 a1Q+ Qa2 Qf6 Qb2 Qdf5 Qbe3 Bdb3 Qed4 Qd3 Qde3 Qc6 b7+ Ka7 Qc2 Bc7 b8N Ne4 Bg3 Qb7 Bf5 Ka8 Qb2 Na6 N8c6 Bb8 Bd6 Rg3 Qb6 Nac5 Ne3 Rg6 Na2 Rg5 Kb4 a3 Bh7 Rgf5 Rg4 Rg2 Rg8 Ng5 Bg6 Rf1 Ng4 Rff2 Nc3 a2 Nd5 a1Q Qbb1 Qh8 Qb2 Qaa7 Na5 Qf6 Ka3 Qaa6 Nb4
RB2q1n1/Nn3Q1K/2Q1PR1b/2q1r3/P5br/1Br2N1B/1rQ3b1/4bkrB b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d4 c5 a4 b5 g6 h5 g7 f5+ Ke5 f3 d6 h4 g5 f4 d5 h3 g6 f2 d7 b3 Kf5 b2 d6 h2 Ra2 b4 Be3 b3 Qd2 f3 Bg2 f1R Ra3 f2 Bg5 Rh3 e4 Ra5 e5 Na6 Qc2+ Rc3 Bf4 Qe8 Nf3 Rg1 Bh3 f1B Ra2 Bg2 Na3+ Kd5 Nb5 Kc4 Na7 b1Q Kg5 b2 d8Q Qc1 d7 b1R Qc7 Rb2 d8Q Bg4 Qde7 Qe3 Qc6 Qf2 Qc1 Kd3 Qf7 Ke2 Qc2+ Kf1 Ra3 c4 Rb3 Qe2 Rb8 Nc5 Ra8 Nb7 Bg3 Qe3+ Bf4 Nf6 Kh6 Bb4 g8B Qc5 g7 Rb5 Bh7 Ng8+ Kg6 Re3 Bg3 Be1 Bf4 c3 Bg3 Nf6 g8B Ra5 Kh6 Rab5 Be4 R5b3 Qb1 c2 Bd5 c1B Qc2 Rbc3 Bb3 Nd5 Kh7 Ne7 e6 Re4 Bb8 Re5 Kg7 Bed2 Bh7 Be1 Be4 Ng8 Kh7 Bh6 Nd2+ Ke2 Bbd5 Bf1 Bb3 Rgg3 Bhg2 Rh3 Rg1 Rh4 Bh3 h1R Rg3 Rg1 Bh1 Bg2 Rf3 Bh5 Rf5 Bg4 Nf3+ Kf1 Rf6
N3Q1b1/2rrn1B1/R2PQ2K/bk1rrB2/2bq4/5RN1/2rPB1qQ/2Q1b2n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 b4 f5 e4 c5 g4 a5 g5 h3 b6 h2 b7 h4 b5 a4 b6 h3 e5 a3 g6 c4 g7 a2 Ba3 c3 Bb4 c2 Qe2 c1R Qa6 Bd6 Bb5+ Nc6 b8Q Rh5 b7 Nh6 g8B Ng4 Bf1 Rc2 Na3 Ne7 Be2 Ra7 Qa8 Nf2 b8Q Rac7 Rd1 a1B Qab6 Bc3 Bc5 Ba5 Bd4 Ba6 Re1 Bc4 Rf1 Bc5 Bh7 Qh8 d6 Bg8 Qba6 Bcb6 Qa8a7 Kc6 e6 Rd7 Bc5 Qd4 Nc4 Rc7 Qac8 Kb5 Bd3 Rd7 Ne2 Rg5 Rhg1 h1R Ng3 h2 Be2 Rc7 Ra1 Rg7 Rg2 Re1 Qab7 h1R Qe4 Rhg1 Ba3 Rd7 Bb2 Nh1 Rf2 Rg5 Qe3 Rec1 Qbc7 Rge1 Qf8 Ba7 Qh6 B7b6 Qh2 Ba7 Kg2 f3+ Kh3 f4 Kh4 Rd5 Bf5 Bc5 Rf1 f2 Kg5 f3 Kh6 Bcb6 Bd1 Ba7 Nb6 Re2 Na8 Bc5 Qf4 Ree5 Qe4 Ba7 Qc8 Rcc7 Qb1 R1c2 Qc1 Bc5 Re1 f1Q Re3 f2 Rf3 Qg2 Be2+ Qd3 Ra2 f1B Qe8 Bf2 Qg6 Re3 Bg7 Ree5 Qe8 Be1 Qc8 Ng6 e7 Qc4 e8Q Ne7 Bd1 Bd3 Be2 Qd4 Ra3 Bc4 Ra4 Ng6 Qe6 Ne7 Qe8 Bc3 Ra7 Ba5 Ra6
6Q1/1r2bqq1/2PqP1BR/1B2n2B/bNk2nN1/b2b1N2/R1bKQq2/B6r b - - 0 1 illegal: No possible last move, all moves rejected
q1n1n1bQ/R1R2P2/1kNbQq2/1rB4N/4KR2/P7/Rrn1Q1r1/1r1B1n1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 b5 f4 e5 g4 h5 g5 c5 f6 Kc7 g6 e4+ Ke3 h3 d4 h2 a3 h4 d6+ Kb6 d7 c4 d5 h3 f5 b3 g7 b2 f7 c3 f6 c2 d6 b4 Qd3 b3 Kf4 e3 Kf5 e2 Ra2 e1N Bd2 c1N Ne2 Ra5+ Ke4 Ne7 g8Q Nc2 Ng3 Ne2 Bb4 Rb5 Nc3 b1R Nh5 b2 Qf3 Na6 Nd5+ Kc6 Rg1 h1Q Rg7 h2 Rh7 Qb6 d8R Be6 d7 Nc7 Ra8 Ne8 d8Q Nc8 Ra7 Bd6 f8R Bf7 Qg4 Rg8 Qe6 Rg2 Qd3 Bg8 Rhe7 Ned4 Be2 Ne3 Bd1 Nf1 Qe2 Nc2 Rg7 Qf2 Rff7 Qh4+ Rg4 Qg5 Rf4 Qg7 Rfe7 Qh6 f7 Qf6 Nc7 Kb6 Na6+ Kc6 Rec7+ Kb6 Qd5 Rc1 Qf5 b1R Qe6 Rb2 Nb8 Rcb1 Nc6 Qg1 Qde7 h1R Qf8 Qf2 Qh6 Qg3 Qf8 Qb3 Qh6 Qa4 Qh8 Qa6 Ne7 Qb7+ Nc6 Qa8 Bc5+
q1nb3K/r1bPR3/1R1PQN1N/3n3B/7B/R1n4Q/k5rQ/nb1qQb1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 g6 c4 g7 c3 d6 h3 b6 f3 d5 f2 d7 h4 b7 c2 Qg4 Kb3 Be2 f1B Bg5 c1B Nf3 h2 Qh3 f4 Nc3 a4 Rb1 Ne7 Kf6 a3 g8Q a2 e5 a1N e6 Na6 b8Q+ Nb4 Ne5 f3 Ne4 Bf4 Ng4 Ka2 Nh6 f2 Bh5 Ra7 Kf7 Bca6 Nf6 Nc8 e7 Bad3 e8Q Bc7 Qe1 Be7 Kg7 Be4 d6+ Nd5 b4 Qe8 b5 Bed8 Qh7 Nc3 Rb3 Bb1 b6 Rf8 Rg1 h1Q b7 Qe2 Qe4 Qd1 Qee6 Re8 Qh2 h3 Bh4 Rf8 Rg6 Rg8+ Kh7 Rg7+ Kh8 Qc6 Rg1 Rg2 Qa8 Qa4 b8R Qa6 R8b6 Qa5 Qg3 h2 Qaf3 h1N Qh2 Qad5 Qfh3 Qa8 Nf5 Bfd3 Nh6 f1N Nfg4 Ba6 Nf6 Ne3 Rf1 Ned5 Rg1 Rf2 Rg7 Rg2 Re7 Bf1 Ra3+
n1B2q1R/2N2b2/4b1b1/1RR1b1Q1/n3kBqr/K1N1q2P/3rNq1P/2Qr1N2 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 f5 h4 f6 h3 gxh3 exf6 Ra4 f5 Ra1 f4 Kd2 Ke7 b4 Kd6 c4 Ke5 Kc2 a5 Kb3 f5 e4 d5 c5 g5 c6 f3 b6 d3 c7 a4+ Ka2 g4 b7 f2 b5 g3 b6 d2 Bb5 f1B Qg4 d1B Bc4 f4 Bb3 f3 Qd7 a3 Qa4 f2 Nd2 d4 Qc4 d3 Ba4 g2 Qf7 Bh5 Kb3 a2 Qg7+ Nf6 Be8 Bd6 Rb1 a1R Ne2 g1Q Bd7 Bg6 Nc3 Na6 b8R Qf8 b7 Rh4 Rb2 Kf4 e5 Ne4 e6 Be5 e7 Qg4 Rc2 Nec5+ Kb2 Bg2 e8N Bd5 Nf1+ d2 Qe7 Kf3 Qg5 d1Q Bf4 Bdf7 Bf5 Rb1+ Ka3 Bce6 c8Q Qd4 Nc7 Qe3 Rb2 Ra7 Rb5 Rd1 Ra8 Rd2 b8N Na4+ Rc5 Rb7 Nc6 Rb1 Rb8 Rbd1 Nd4+ Kg2 Ne2 Kf3 Nfg3 f1Q Rg1 Rd6 Rbb5 Qff2 Nf1 R6d2 Qe8 Bc4 Bc8 Bce6 Qd7 Nb8 Qd3 Nd7 Qb1 Ndb6 Qc1 Na8 Qd8 Qf5 Rg5 Qg4 Rh5 Ba2 Qg5 Bab3 Na2 Ke4 Rh8 Bbe6+ Nac3+
5n2/1q1R2K1/nQrn1Q2/1bbq2NR/1qqR1BrQ/1Bk1NPP1/1R6/r6n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kd4 a5 b4 c5+ Kc3 Ke5 f3 h5 d3 a4 b6 e3 d6 a3 g3 e2 b7 e1Q+ Qd2 h3 d7 a2 b5 h2 b6 c4 Na3 h4 Bh3 Qe4 Bg4 h3 Bh5 Rh6 Qb2 Na6 b8R Rc6 b7 Nf6 Nb5 Nh7 Rb1 a1R Nd6 e6 Nf5 Bc5 Bf7 Nf8 d4+ Kd5 Bh5 e5 Bf4 Qb6 d8Q+ Bd7 Rc8 Ra7 b8Q Qb7 Qh4 Ra4 Qb6 Be8 Kb2 c3+ Kb3 c2 Kc3 Ra8 Rc7 Ra1 Rb2 c1Q+ Rc2 Qd1 Rb2 Qee2 Rf7 e4 Q8d8+ Bd7 Bg6 e3 Qdf6 Qb5 Bh7 e2 Bg8 Re8 Rg7+ Ree6 Rh7 Qda4 Re7 Qba5+ Kd3 e1Q Rf7 Q5b4 Rg7 Qe5 Ne3+ Kd6 d5 Be8 Qf5 Rg6 Be6 Qa2 Qff6 Rg4 Bf7+ Kd7 d6 Qed5+ Qd4 Qdc4+ Ke4 Qab3 Ke5 Qd5+ Kf6 Qc2 Ne2 Qcc4 Rc1 h1N Ng1 h2 Nh3 Nf2 Ng5 h1N Rd1 Qc1 Rh7 Ne4+ Kg7 Qcc4 Rh5 Rc7 Qa7 Kc6 d7 Kb5 d8R Rc6 Rd7 Nd6 Qf6 Ka4 Rd4 Ka3 Rc2 Kb3 Rb2+ Kc3 Qb6 Rc8 Re7 Bb5 Rd7 Rc6 Bg6 Qe6 Bc2 Qed5 Bb3
2KQ4/NNb2B1q/r1r2n1B/rNR1qB2/4B1Qn/1P2R1P1/2rn3q/5qkb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 d5 e4 h5 c4 a5 g6 f5 b3 a4 g7 a3 b6 f3 b7 h4 g3 a2 Bh6 h3 Qc2 f2 Qc1 h2 Qd1 d3 Nh3 d2 Qc1 d1Q Ng5 d4 Na3 f4 Bg2 f1N Nf7 d3 Nb1 d2 Qc3 f3 Bh3 f2 Qd3 Qa5 Nd8 Ra6 Nc3 Qc2 Rc1 a1R Nb5 d1R Qd7 Ne7 g8B Rdd6 Bh7 Rdc6 B3f5 Nd2 Rhe1 h1Q Re3 f1Q Qe6 Qb1 Qg8 Qc2 Qg4 Qh2 Bhg6 Be6 Kf6 Ra3 e5 Bd5+ e6 Bh1 Kf7 Ra1 Ke8 Nd7 b8Q Rh7 Bf7 Ng6 e7 Nh4 Bd5 Qac3 Bde4 R1a5 Qc7 Qe5 Nb7+ Kb4 Kd8 Nf6 e8B Bd6 Qb6 Bc7+ Kc8 Rd7 c5 Rd4 Qa7 Rc4 Qa8 Qcd3 Bf7 Rc2 Na3 Kc3 Qb8 Rcb6 c6 Kd4 Qa8 Bb8 c7 Re6 Kd8 Rec6 c8N Bd6 Na7 Bc7+ Kc8 Ra2 Rf3 Rac2 Rf4 Ke3 Rf3+ Ke2 Re3+ Kf2 N3b5 Kg1 Qb8 Rb2 Rc5 Rc2 Bd7 Qff5 Qa8 Qh7 Bdf5 Qf1 Nd8 Rcb6 Qd5 Re6 Nb7 Rec6 Qd8
4kbNN/bnb2R1r/1qRBQ2Q/rNr2n2/2nr2q1/PK6/5PB1/3QQb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 c5 d4 e5 Kd2 h5 Kc2 b5 d6 b3+ Kb2 b4 a3 h3 g5 e4 g6 h4 f6 c4 d5 h2 g7 e3 Qd3 e2 Nc3 e1B Na2 c3+ Kb1 c2+ Kb2 h3 Ne2 Rh5 Qf5 Ba6 Bd2 c1B+ Kb1 b2 Kc2 b1R Qc8 Ne7 g8N Nbc6 Bf4 Be3 Nac3 Rd1 Rc1 Nf5 Kb3 Ba7 Bg2 Rd4 Nb5 Rg5 Rg1 h1R Rc3 h2 d7+ Kf7 d6 Qb6 Be5 Nd8 Nf4 Nb7 d8Q Bd2 Ng6 Bf4 d7 Bg3 Kb2 b3 Rc6 Bf4 Kc3 b2 Kb3 b1N Bd6 Rh5 Rd1 Rh7 Rd3 Rc1 Rf3 h1Q Qdc7 Rc5 d8Q+ Be7 Qc8d7 Qh5 Qcc8 Qg4 Qd8c7 Nd8 Nh8+ Kf8 Qe6 Ke8 Qe1 Bg3 Qd1 Bf8 Qg7 Bf4 Qh6 Bg3 Qe3+ Be5 Qee1 Nd2+ Ka2 Nc4 Kb3 Be7 Qe6 Nb7 Bb8 Bc7 f7+ Kd8 Q6e4 Kd7 f8Q Bed6 Qh6 Bf8 Qee6+ Kd8 Ne7 Ke8 Ng8+ Ne7 Rh3 Bg3 Qe1e2 Ne5 Bc7 Bb8 Qee1 Bh2 Ka2 Ra7 Nc3 Bf1 Rh5 Raa5 Nb5 Nc4 Rf5 Ba7 Rf7 Bd6 Kb3 Bf4 Be5 Bg3 Bg7 Bd6 Be5 Bc7 Qd5 Nf5 Bd6+ Qe2 Be7 Qh5 Qde6 Qg4 Bd6+
K1R2nq1/3r1b2/2BNNb2/1n1b1Nn1/2rr2kP/1bq1P2R/QB6/2R1Qn1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kf6 h4 Kf5 b4 a5 d6 g5 d7 c5 b6 f3 Ke3 g3 b7 f2 d5 g2 b5 c4 Kd4 g4 d6 a4 Kd5 a3 b6 g3 e3 a2 Nh3 g1N Qa4 c3 Bb5 f1B Qc2+ Kg4 Na3 f5 Bc6 g2 Ng5 f4 Qe2+ f3 Nh7 c2 Ng5 Nf6+ Kc5 Na6+ Kb5 Ra7 b8R Bg7 b7 Nc7+ Kb6 Nb5+ Kc5 Nh3 Qe1 g1N Nh7 f2 Nc4 Qg8 Kb6 Ng5 d8N Bg2 d7 f1B Nd6 Bd5 Bb2 c1R N8f7 N1f3 d8N Nd2 Nf5 Rc4 Rh3 Bce6 N7d6 Bf7 Rc1 a1Q Rc8 Be2 b8Q Nf1 Qb7 Bd1 Ne6 Bb3 Qa6 Rd7 Qa2 Rd4 Ng3 Rc4 Nhf8 Nfh7 Nd4 Bf6 Nfe6 Nf8 Nh1 Rh7 N4f5 Rd4 Ba3 Qc3 Bb2 Rc7 Bb7 Rcc4 Bc6 Bg6 Ka6 Rd7 Kb6 Bf7 Ka6 Nc7+ Kb7 Nb5+ Ka8
2bnR3/qB4rn/b2rB3/b4N2/N1PQ2RK/k1Bq1Qr1/2P1Nb2/2N1rn2 b - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 f5 b5 axb5 c4 d3 e6 dxc4 exf5 Rh3 f4 Rh2 Qc7 Rh1 Qd8 Kf2 Ke7 b4 d5 e4 Kd6 g4 h5 b6 a5 b5 Kc5 b7 Kb4 g5 f5 g6 a4 e5 f3 g7 h3 Kg3 h2 b6 h4+ Kh3 f4+ e6 f2 Bd3 f1R Be3 f3 Bd4 f2 Be4 a3 Bf3 a2 Nd2 Rh7 Nb1 Ra3 Bb2 d4 Bc1 d3 Nd2 Nc6 b8N Re1 b7 f1N Bb2 Nf6 g8B Rg7 Nd7 Nh7 Nb3 d2 Ne2 Bc5 e7 Bf2 Rg1 h1B b8Q+ Ka4 Rb1 a1B e8N Qa5 Qb6 Nd8 Rg5 Qa7 Bb7 Bc6 Qd4 Bb5 Rg1 Ba6 Bc3 Bb2 Nbc1 Rb3 Ng3 Ka3 Qf3 d1Q Nge2 Qd3 Be6 Rb6 Rg6 Rd6 Nb6 Ba1 Kg4 h3 Na4 h2 Rb5 h1R Re5 Rg1+ Kh5 Rg3 Rg4 Rgd7 Ng7 Rc7 Nf5 Rg7 Kh4 Bb2 Bd2 Bc3 Ree4 Ba5 Bc3 Bb4 Bed5 Ba5 Re8 Rc7 Bg8 Rg7 Be6
K5k1/n1N4q/2QB4/2NBr1qq/1P1B2bq/Q3R2P/2R2r1n/nNbnB2b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 g5 d4 f5 e4 Kf7 d6 c5 e5 g3+ Kf3 g2 b6 a4 b7 g4+ Kf2 a3 d7 g3+ Kf3 c4 h3 c3 d5 c2 d6 a2 Bb2 c1Q Qa4 Ne7 e6+ Kg8 Qc6 Qc5 Na3 Bh6 Nb1 Ra5 Bf6 Nd5 e7 Ne3 e8N Nd1 Be5 Qh4 Ne2 g1Q d8Q g2 d7 Qb5 Qdf6 Qa7 d8B g1Q Nc1 Qgg5 Bg2 Bd7 Qc3 Nc6 b8B Qab7 Rg1 Na7+ Qfc6 Bc8 Rh1 Qh7 Re1 Bd7 Nb3 Qc5 Ke2 f3+ Kd3 f2 Re3 f1N Nc7 Nh2 Bd4 f4+ Be4 Qce5 Kc4 f3 Nc5 f2 Qa3 Bg4 Bf3 Qe8 Bd5+ Qef7 B8f6 Rb5 Bc3 f1B+ Kd4 Bg2 Be1 Bh1 Bg7 Qd8 Ke5 Qdg5+ Kd6 Ra5 Bd4 Rb5 Nd2 Ra5 Rc1 a1N Rc2 Rb5 Nb1 Ra5 N7e6 Qfh5 Bc7 Kf7 Kd7 Rf8 Bd6 Rb5 Kc7 Kg8+ Be7 Ra5 Kb7 Rf2 Ka8 Rb5 Bd6 Ra5 Na6 Rc5 Nac7 Rb5 Bf3 Re5 Bd5 Qgg6 Re4 Bc1 Re3 Qgg5 Nc5+
3BQ3/3RRK1N/nqb1N3/4kR2/P2b4/qR1q1r1Q/PnBn4/1rbqBn2 b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 b3 e6 bxa4 exf5 Rh3 f4 Rh2 Ra5 Rh1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 h5 e4 b5 g4 c5+ Kc3 b4+ Kc4 b3 d4 f3 g5 f2 g6 h3 g7 h4 Qg4 h2 Qg2 b2 Bd2 h3 Bc3 f4 Qg4 f3 Be1 Bb7 Ne2 Ne7 g8R Qb6 Nf4 Nc8 Rg5 Bg7 Ne6 Bc6 Nd2 b1Q Bd3 f1N Rf5 f2 Nf3 Na6 Nfg5 Rf8 Bc2 Rb8 Nh7 Bh8 Rg1 h1Q Rg3 h2 Rb3 Qf3 Qh3 Qc1 Rab1 h1Q Re3 Qa3 Rbb3 Qd1 Re2 Qf3 e5+ Kd7 d6 Bf6 Ree3 Nd2+ Kc3 f1N d5 Qg3 Kd3 c4+ Kc3 Qb7 Kd4 c3 Re4 Nb6 Re2 Ke8 d7+ Ke7 d8R Nbc4 d6+ Kf7 d7 Nb2 Rc8 Kg6 d8B Qb5 Rc7 Qb6+ Nc5 Bh8 Rd7 Rf6 e6 Qd3+ Ke5 Rb7 Bb1 c2 e7 c1B e8Q+ Rf7+ Ke6 Bd4 Bc2 Rb8 Qh8 Rf6+ Ke7 Rf7+ Ke8 Rb7 Re7 Rb8 Rf2 Rf3 Ne6 Rb7 Qh2 Kf5 Kf7 Rb8 Qe8 Rb7 Qh3+ Ke5+ Kg8 Re3 Rf8 Rf3 Rf5+ Ke4 Rbb5 Qa7 Rf6 Nbc4 Ra5 Rb1 Rb5 Nb2 Rb3 Qb6 Kf7 Ke5 Rf5+
N2n1r2/Q1K1b1kn/rQ1B1qb1/R1b1b1P1/2n3n1/1N1QRqP1/q1RRB3/8 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 e5 c4 a5 b4 d5 b6 h5 b7 e3+ Kd3 a4 g3 e2 b5 e1Q f5 e4+ Kc2 a3 Kb3 e3 c5 d3 f6 e2 c6 h4 b6 d2 c7 d4 Kc4 h3 Kb5 h2 Nf3 d3 Bg2 a2 Nd4 Be7 Rf1 h1Q Rf2 Ra6 Na3 Bf5 c8R Nc6 b8Q Bg6 Bf1 Qf3 b7 Bc5 Rg2 Qef2 Nc4 e1B Nb6 Qf8 Qa7 Nd8 Qe2 d1N Ba3 d2 Nb3 Ne3 Na8 d1N Qd3 Nb2 Be2 Ng4 b8Q+ Be7 Rc4 Bb4 Rc2 Bc5 Qbb6 Nc4 Re1 a1B Rd2 Bcd4 Bd6 Bc5 Rc2 Be5 Rh2 Ke6 f7 N8f6 Ra1 Nh7 Ra5 Qg7 f8R Qgf6 Re8 Kf7 Rd2 Rf8 Rg2 Kg7 Rc2 Q3f5 Rd2 Nb7 Kc6 Nd8+ Kc7 Q2f3 Rg1 Q5e4 Rc1 Qd4 Rcc2 Qb2 Ra3 Qb1 Ra5 Qa2 Qc6 Bb2 Bf4 Bbd4 Qcb6 Bed6+ Kd7 Bb2 Re3 Be7 Bd6 Be5 Kc7
1Q3B2/Rq1NnQ2/2q1rQ1K/1B3bP1/2NQkn1N/4P2n/b2brR1r/r2b4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 b4 f5 d3 c5 g5 a5 d6 h5 e3 h3 d7 h2 b6 c4 b5 c3 b7 c2 b6 a4 Bh3 a3 Qf1 h4 Bd2 c1R Ba5 a2 Qf2 Rc2 Qg3 Bb4 Ne2 Qc7 d8N Bd2 Nd4 Na6 b8Q Ne7 b7 Nb4 N8e6 Ra6 Rd1 h1N Qf2 Nbd5 Nc5 Re6 Qa7 Qc6 Bf1 h3 Bb4 h2 Na3 Rh5 Qh4 Nf2 Be2 Rb2 Rf1 Nh3 Rf2 Rh7 Qh5 Bd7 Qf7 h1Q+ Rg2 Qb1 Rf2 Rh8 Bd1 Bc8 Ba4 Rc2 Bb5 Rh7 Kg2 f3+ Kg3 f4+ Kg4 Rhh6 Nf5 Qh1 Re2 f2 Nh4 f1B Rf2 f3 Qa4 Ndf4 b8Q+ Kd5 d4 Bc4 Nd7 Ke4 d5 Be2 d6 Bd1 Nc4 Rb2 Re2 f2 Bc5 f1B Qb4 Ba4 Rf2 Bd3 Qc3 Bb1 Qcf6 Bac2 Ndb6 Bb3 d7 Rh5 d8Q Bd1+ Re2 Qb7 Nd7 Ra6 Bd6 Ng1 Bc6+ Ned5 Qfh8 Ba5 Qb6 Kd3 Nf5 Rh2 Bb5 Ngh3 Bf8 Ne7 Qhf6 Qhd5 Kh4 Ke4 Rf2 Re2 Nde5 Bd2 Qc5 Rd6 Kg4 Qdc6 Kh4 Nfg6+ Kh5 Ngf4+ Kh6 Bd7 Nh4 Bf5 Nd7 Re6 Qcd6 Bbc2 Rb1 Bb3 Rb2 a1R Ra2 Qc5 Ra7 Ba2 Qb6 Qcc6 Qd4#
1K6/1Bnk3q/Rr1BN2n/3bqP1P/Q1r1b1nn/N3R1b1/3Nr1B1/rQ3B2 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Ke2 g5 Ke3 a5 Kd4 d5 Ke5 a4 c4 d4 b4 g3 h4 a3 f4 g4 b6 e3 f5 e2 b7 e1R+ Be3 d3 b5 a2 b6 d2 c6 g2 h5 g3 c7 Ra4 c5 Kd7 Be2 Nh6 Bf2 Na6 b8Q Bb7 Be3 Rc4 Bd3 Bd5 b7 Re2 Qb3 d1B Rh3 Bc2 Nf3 g1N Na3 g2 Nd2 e6 Qb1 Qe7 Qa8 Qh7 Be4 Be7 Bf4 Rb8 Re3 Nh3 Bd3 g1N c8B+ Kc6 Be4 Nf2 Bg2 Bce4 Qa7 Kc7 c6 Bh4 Qa8 Kd8 Kd6 Nc7 Qa4 e5 Bf1 Nfg4 Bg3 Ra8 b8N Ra6 Bb7 Rb6 Na6 Nf3 Nc5 Ke8 Bf4 Bg3 Ne6 Nh4 Bg2 Kf7 Kd7 Kf6+ Kc8 Ke7 Kb8 Ke8 Qbb5 Ke7 Rg1 a1R Qb1 Bd3 Rc1 e4 Rc2 Ke8 Ra2 Bc2 Bd6 Bd3 Rf3 e3 Bf1 B3e4 Bg2 Nb5 c7 Kd7 Bf1 Rh2 Bg2 e2 Re3 e1Q Bf1 Re2 c8B+ Ke8 Nf3 Qc3 Nd2 Qe5 Bg2 Rbc6 Ba6 Rb6+ Bcb7 Kd7 Rc2 Rd4 Rc6 Nc7 Bd3 Rf2 Bdf1 Rc4 Ng7 Re2 Ne6 Rb3 Ra6+ Rb5 Qab3 Rb6 Qa4+
K3nQ2/1BBqQ3/3b2kr/P3n1N1/1N2qb1n/B1nr2PQ/R4bR1/Q1q2b2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 b5 Kd4 h5 Kc5 e5+ d6 b3 f4 h3 a4 b2 d4 b4 d5 h2 f6 e4 a5 h4 f5 e3 g3 b3 Qd3 e2 Na3 b1N Bh6 e1B Qb5 b2 Qc6 h3 Nf3 Ba6 Bc1 Qd7 Qa4 Rh6 Nc2 Nc6 Nb4 Ne5 Rg1 h1Q Bg2 h2 Ra2 Rd8 Bf4 c6 Kb6 c5 Qa3 c4 Ng5+ Ke8 Be4 c3 Rg2 c2 Qc3 Be7 f7+ Kf8 Qd4 Kg7 f8B+ Kf6 Qd1 Nd2 Qa1 b1N Bf3 c1B Be4 Qe6 Ka7 Nc3 d7 Ndf3 d6 Bf1 Ba8 Nh4 Bb7 Re8 d8Q Qd7 Qb8 Rd8 Qc8 Bf2+ Ka8 Bd2 Nh7+ Kf7 f6 Kg6 f7 Nf6 Ng5 Bc1 Kb8 Ne8 Ka8 Qa4 d7 Bd6 Be7 Qg1 f8Q h1Q Be3 Qh3 Bb6 Bf4 Bc7 Qf5 Qb8 Qe4 Qf5+ Kh5 Qh3 Kg6 Bf8 Rc8 d8Q Qd7 Qe7 Qh1 Bd8 Rc4 Bc7 Rd4 Bg7 Rd3 Bf6 Ng7 Qbf8 Ne8 Bg7 Nf7 Bd4 Ne5 Bc5 Be2 Na6 Qc1 Ba3 Bf1 Nb4
rQR2Bb1/1K1Q2bQ/B1r1B1n1/Pb1q4/1R1n4/2QP2n1/1nN3b1/q1Nk3q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 a4 e5 g4 b5 d6 c5 Kd5 Kf4 d7 h5 a5 h3 f6 b3 f3 e4 f7 b4 g5 c4 g6 b2 g7 c3 Qa4 h2 Qd1 b3 Qc2 h4 Bh3 e3 Qd3 c2 Bf5 h3 Be6 e2 Nc3 b1B Ba3 c1N Nd1 e1Q Qc3 b2 Ne3 Nd3 Nc2 Ba6 Bb4 Rh6 Ra4 Kg3 f4 Kf2 f5 Bb5 f6 Nc6 Ne2 Nd4 Nc1 Ne7+ Kd6 Ba2 g8B Bg7 f8Q b1Q f7 Ng6 Qe7 Nb2 d3 Qd1 f8Q+ Qf3 Ba3 Qa1 Rb4 Bac4 Rd1 h1B Qef7 Qh4 Kc7 h2 d8Q Bg2 Qdd7 h1N Qb8 Ng3 Qfe7 Qfh5 Kb6 Kf3 Kb7 Qh1 Re1 Ba2 Bc4 Qe5 Bge6 Qd6 Re5 Bb3 Rc5 Qd5+ Rc6 Ba2 Nb3 Ke2 Nc1+ Kd1 Qh4 Ba4 Ba6 Bb5 Qh3 Rh8 Qh7 Rc8 Ra4 Bac4 Bf8 Bb3 Rb4 B3c4 Kb6 Ba2 Rc5 Rc6+ Kb7 Qf3 Bf5 Bg8 Be6 Qd5 Rcc4 Rd6+ Kc8 Rb6 Rc7 Rc6 Kb7 Qdh5 Rc8 Qf3 Ne2 Qd5 Nc1
qn2Q1K1/Nb1Nb3/1rn1N3/P5P1/1BbR4/n2nr3/QQr2kB1/1N2R1rq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 g4 b5 a4 c5 f4 e5+ f6 h5 Kg6 e4 Kf7 h3 d3 h2 g5 e3 d6 e2 f5 e1N a5 c4 d7 b3 Nd2 Ke3 d4 b4 d5 b2 d6 b1B Ra3+ c3 Qc2 b3 Qa2 h4 Nh3 c2 Ra4 b2 Nf4 h3 Bg2 Ne7 Rd4 Ra6 Ne6 Bb7 Rf1 Qc8 d8N h1R d7 h2 Nc6 Rg1 d8Q h1Q Qb6 Rh3 Na7 Nd3 Re1+ Kf2 Qbb3 Nec6 Kg8 Rf3 f7 Be7+ f8N Re3 f6 Rb6 f7 Qd8 Qb5 Qd5 Nd7 Qe4 Qa1 Ba2 Nb1 Bc4 Bd2 c1R Qa2 Rc2 f8Q+ Qf3 Qe8 Qe4 Nc3 b1N Qbb2 Na3 Nb1 Qd5 Rd1 Qb5 Bb4 Qa6 Nc8 Qa7 Re1 Qa8 Na7
1r1RB3/4NN2/1R1n1Pqb/2Nb2Bn/P3r1kr/K3Q3/b1N2b2/r2Bn1Qq b - - 0 1 illegal: No possible last move
2b5/B2n3q/rbR1PN2/4rBR1/n1Pn4/KBk1n1R1/5qbQ/Qr1Br2N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 c4 d5 Kc2 f5 Kb3 a5 g4 h5 b6 h4 b7 a4+ Ka3 f3 g6 f2 g5 h3 g7 d3 g6 Kd4 e5 h2 e6 f4 Qb3 f3 Nh3 d2 Rg1 d1R Nc3 h1B Bg2 f1N Qa2 f2 Bf3 Qe7 Rg5 Nf6 g8B Ne3 g7 f1Q Ne4 Rh5 Bh7 Ra6 g8B Re1 Bf5 Qf2 Bgh7 Nfd7 Bd1 Bg2 Nf6 Nc6 b8Q Kc3 Qh2 d4 Bfc2 d3 Bf5 d2 Bb3 Nd4 Rg3 Qf3 Nf2 Qh7 Nh1 Qf2 Rg5 Bh6 b5 Bg7 b6 Bh6 Bdc2 d1N b7 Nb2 b8R Bf8+ Rb4 Bc5 Bd1 Bb6 Rg3 Rh4 Rb5 Re4 Rd5 Re5 Rc5 Nd3 Rc6 N3c5 Bb2+ Kd2 Kb4 a3 Rg5 Na4 Rc1 Qh6 Rc3 Qh7 Ng4 Nf1 Rh5 Nf3 Rg5 Bd8 Qb1 a2 Nf6 a1R Qa2 Rb1 Ka3 Ba5 Re3 Bc7 Qa1 Ba5 Bd4 Bd8 Bc5 Nd4 Ba7 Bb6 Reg3 Ne3 Qa2+ Kc3 Qa1+
2B2NK1/R1b2Q2/rb2PNN1/b1Bb1rr1/2Pq1B2/2q3kn/1N1r4/nQ2q2R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kh4 c4 a5 b4 f5 e4 g5 e5 d3 h3 a4 b6 f3 b7 g4 h6 f2 b5 a3 e6 a2 b6 f4 h7 d2 Qc2 d1Q+ Bd2 g3 Qe4 g2 Nc3 Qc2 Nd1 Qc3 Qd4 Nc6 b8N Ra6 b7 Nh6 Bd3 f1Q Nf3+ Kg3 h4 g1B h5 Bd6 Bg6 Rg8 h8N Nf7 h6 Bc7 h7 Qe1 Qg7 Nd4 Nh4 f3 Nb2 f2 Be4+ Ng5 Be3 f1R N4g6 Nh3 Qf7 Nc2 Nf8 d6 Nhg6 Rf5+ Ne5 Rg7 h8B Rgg5 Nbd7 Ba5 b8Q Bh2 Rb1 a1B Nf6 Bb6 Kc6 d5 Bf3 Bd7+ Kd6 d4 Neg6 d3 Bb7 d2 Bc8 Ba5+ Qb6 Bg1 Bg7 Bf2 Bh6 d1R+ Bd4 Rd2 Rc1 Qc7+ Ke7 Qce5 Bc5 Bc6 Rd1 Qed4 Qb4 Rg4 Be3 Rgg5 Qb3 Bb7 Qa2 Bd5 Qb1 Nf4 Rh7 Nh3 Rc1 Qe2 Rh1 Qe1 Qg7 Bc7 Kf7 Ba5 Kg8 Bg1 Nd1 Bb2 Qa7 Na1 Qf7 Bc7 Rg7 Ba3 Rh7 Bb4 Nb2 Bba5 Qe8 Bcb6 Ra7 Bh2 Qd7 Kg2 Qg7 Bhc7 Qf7 Kg3 Bf4+
N3B3/1RQ4r/1N1qPq2/nK1P1q1B/rb1R1N1k/2bB1b2/3q1rrn/5QB1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 Ke7 e4 a5 Ke2 c5 d4 f5 b4 h5 g6 Kf6 e5+ Kg5 b6 c3 Kd3 a4 Kc4 a3 g7 c2 d5 a2 b5 h4 b7 h3 b6 h2 Bb2 c1Q+ Qc2 f3 Qc3 f4 Kb5 f2 Qc4 f3 Nd2 Nh6 g8B Qc3 Bd3 f1Q Ne2 f2 Bf7 Kh4 g5+ Bg4 g6 Rh7 g7 Nc6 g8B Na5 b8Q Qd6 e6 Qf6 Nf4 Bf3 b7 Ng4 Rb1 a1B Bd4 Bc3 Be8 Be7 Rg1 h1R Bgf7 Rh2 Bh5 Rg2 Qc7 Nh2 b8N Qf5 Nd7 Ra7 Qb4 c4 Nb6 Qf6 Rb2 Qb1 Rb3 f1R Na8 Rff2 Rd1 Bf8 Qa3 Ra6 Qa1 Qc2 Bf1 Qcf5 Bd3 Qdd8 Qa2 Nc6 Bb6 Ba5 Qb1 c3 Bd4 c2 Bf1 c1Q Ka4 Re2 Rb7 Bc3+ Kb5 Ra4 Nc4 Bfb4 Bg1 Ref2 Rd4 Qd6 Bd3 Na5 Ncb6 Qd2 Qf1
B1rn4/n1b3q1/Pqr2N1n/1qN2NbR/k3Q3/3n1QP1/B2q1NK1/2Bb2R1 b - - 0 1 illegal: No possible last move
2nnr3/4Rq1q/PR1bR1r1/KnkBBR1Q/8/PN6/b1r4r/2N1nQBq b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 d4 Ke7 Kd2 Kd6 Kc3 h5 Kb4 f5 g4 b5 e4 c5+ Kc3 b4+ Kc4 h3 Kb5 f3 g5 h4 a3 f4 a6 h2 g6 h3 g7 b3 Ra2 b2 Be3 f2 Nf3 c4 Bg2 f1N Bg1 c3 Nbd2 b1N Nb3 c2 Rb2 Ne7 g8R c1R Rg5 Nfd2 Qf1 Qd7+ Ka5 Rc2 Rf5 Rg8 Nc1 Nc3 Rb5 Rg6 e5+ Kc7 d6+ Kc6 Rb3 Nb5 e6 Bb7 Re3 Nc8 d5+ Kc5 Nd4 f3 e7 f2 e8Q Nf3 Re6 Qh7 d7 Ne1 d8R Bd6 Rd7 Bc6 Qf7 Bb7 Rde7 Nc6+ Ka4 Nd8 Ka5 Rg4 Qh5 Rg6 Qd3 f1Q Qdd1 Be5 d6 Bd5 d7 Ba2 Bd5 Bd6 Qd3 Qf4 Qf1 Qf3 Bf2 Qb3 Bg3 Qf3 Be5 Qf2 Rg1 h1Q Rg3 h2 Rb3 Qe4 Rb2 h1R Rb3 Rh2 Rb2 Nf7 d8B Qh1 Bc7 Nd8 Bb8 Nc7 Rb6 Nb5 Ba7 Rb8 Rg5 Qff7 Rf5 Rhg2 Bh2 Ra8 Bg1 Rh2 Bb8 Bg3 Be5 Bf4 Bh8 Bd6 Be5 Nc6+ Ka4 N8a7 Qd3 Re8 Qf1 Nd8 Ka5 Nc8 Ndb3+
1r1r3Q/1q1q3P/1N1nnnRr/Bq2Q3/1NB4k/P1N3bQ/1R1K4/Nr3b1q b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kf7 h4 Kf6 d4 b5 d6 e5 d5 g5 h5 c5 a3 e4 h6 g3 d7 g4 d6 b3 h7 b2 Qc2 g2 Nc3 b1Q Ra2 g3 Rh5 e3 Qe4 c4 Qe8 b4 Rb2 e2 Na4 b3 Rh2 c3 Rh5 c2 Qe4 Na6 Qd3 Nc5 Nc3 Ne6 Rg5 Rb8 Nf3 g1N Nd4 g2 Qh3 Ba6 Kd2 e1R Bc4 Ne2 Rg3 Qe7 d8Q g1Q d7 Qh1 Qe8 Qb7 d8N Qed7 Nc6 Rh1 Nb4 Bd6 Rg5 Ng3 Qeh5 Ke7 Rg6 Nf6 Qe2 Rhd8 Qe5 Nfh5 f6+ Kf7 f5 Ne4+ Ke2 Bc7 Bf4 c1Q Bd2 Nd6 Ndc2 Rh2+ Ke3 Qch1 Na1 Qbb5 Be1 Qhb7 Bd2 Q1h1 Be1 Bb6+ Kd3 Bf2 Kd2 Bg3+ Kd3 Ke8 f7+ Ke7 f8N Nf6 Ke3 Bf2+ Kd2 Bg3+ Qg2 Rh6 Qh3 Qe8 Nd7 Qf7 Rc2 b2 Nb6 b1R Ra2 Qfe8 Rb2 Qed7 Rg8 Nd5 f6+ Kf7 Rf8+ Kg6 f7 Nf6 Re8 Rh4 f8Q Rh5 Qh8 Rh6 Qe2 Kg5 Rg8+ Kf4 Qe5+ Kf3 Qhh5+ Kg2 Qf3+ Kh3 Rg6 Kh4 Ne4 Qh3 Ba2 Rdc8 Nd3 Bf2 Ke2 Qb3 Ba5 Qh1 Kd2 Rd8 Nc3 Bc4 Qg2 Qbb5 Nb4 Bf1 Bc4 Bg3 Qh3+
1rq3Qb/3bq1P1/2r1B1Q1/5nB1/Kb2Qn2/1NQr2Bk/R2bP1q1/1R2N2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 c5 d4 h5 Kd2 f5 Kc2 a5 Kb3 h3 g5 c4+ Ka4 h4 b6 c3 d6 Ke6 b7 f3 d7 f2 g6 c2 b5 h2 b6 h3 Bf4 c1B Nd2 Na6 b8Q Qe7 d8Q Rh6 b7 Bd7+ Kb3 a4+ Kc2 a3 Kb3 a2 Qa5 Nc7 Bg5 f4 d5+ Kf5 d6+ Kg4 Qe1 f3 Rb1 a1B Qd5 Bh8 g7 Ne6 Rb2 Nf4 Nb1 Bd2 Qe8 Rb8 Ra2 Re6 Bg2 f1R Qg6 f2 Qde4 Nh6 Nf3 Nf5 Qc1 Kg3 Qc3 Rd1 Ne1+ Kg4 Kb4 f1Q Bf3+ Kg3 Bg4+ Qf3 Rf1 h1Q Ka3 h2 Bh3 Rd8 b8B Qg2 Kb4 h1R Kb3 Be3 Nd2 Qg4 Ka3 Rf6 Nb3 Rd3 Kb4 Rc8 Ka5 Rc6 Ka4 Bd2 Rg1 Re6 Rf1 Re5 Rg1 Rb5 Rf1 Be6 d7 Rbb6 d8Q Bd7 Bd6 Rb8 Qc8 Qe5 Bc7 Bb4 Qg8 Qe8 Bd6 Qc8 Be5 Q4f3 Bg4 Qe3 Bd6 Qc5 Be5 Qe7 Bd6 Nh6 Be6 Nf5 Bc7 Kh3 Be5 Nd5 Bg3 Nf4 Nc2 Rg1 Rb1 Rh1 Ne1
1K3Nk1/3NP1Bb/r3n1nR/n7/Q1qP4/bb3n1r/r4RRR/qQ1Br2N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 g4 Kf7 d4 h3 b4 a4 e4 h4 b6 c4 g5 h2 d6 f3 b7 f2 b5 a3 b6 c3 d7 c2 Ba6 f1B Nc3 f4 Ra2 h3 Nce2 f3 Ng3 f2 Be2 Ne7 Kd6 Kg8 g6 Nbc6 b8N Ra6 e5 Na5 Bh6 c1N g7 Nd3 e6 Nc5 Qa4 Rh7 Bg4 Bd3 N1e2 f1N Nf4 Nd2 Bd1 Nf3 Rf2 a2 Ng6 Qe8 Kc7 a1Q d8Q Qb5 b7 Qc4 Nd7 Bc2 b8R Bb3 Rb4 Bb7 Qb8 Be4 Rb6 Rh8 Rhf1 h1R Rh2 Bd3 Rff2 Re1 Nh1 Bb1 Nge5 Bh7 Ng6 Re2 Qb7 Rb2 Kb8 Ra2 Rhg2 h2 Qe4 Nd5 Qb1 Nf4 Rc6 Be7 Ngf8 Ng6 Rb6 Nd3 Rc6 Ba3 e7 Ndf4 Rd6 Kf7 g8R Ne6 Ng3 h1R Rh2 Re1 Nh1 Ngf4 Rg1 Ng6 Rgg2 Kg8 Bg7 Nc5 Rd5 Ne6 Rh3 Ngh4 Rh5 Bf5 Qc1 Rh6 Rhh2 Bh7 Qb1 Ng6 Rc5 Rh4 Rh5 Rh3 Rh6
3q1B1r/2Pnr3/1QBn2NN/K2b4/B2r3b/q1R1Nnkr/N3RPb1/Q4b2 b - - 0 1 illegal: Other
B2q1Rn1/1KPQ1rb1/n1N5/B4nNk/rQ3q2/2rR2PQ/2bQq3/3rRq2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 a5 Ke4 e5 Kd5 h5 b4 d3 c4 d2 f4 h3 f6 Kg6 b6 e4 f5+ Kh6 g3 h4 b5 h2 c5 a4 c6 d6 c7 a3 f7 h3 b7 a2 b6 e3 f6 e2 Nc3 e1Q Ne4 Qe2 Bg2 Na6 Kc6 d5 b8Q d4 b7 d3 Ng5 Bf5 N1f3 Rh7 Nd4 Kh5 Qc8 Bg7 Re1 h1R f8R h2 b8Q Ra7 Rb1 a1Q f7 Qa4+ Qb5 Rf1 Qd7 h1Q Rb3 Rf3 Qc2 d1R Bd2 Re3 Ba5 d2 Rd3 Qhf1 Qc1 Ra8 Kb7 Qb4 Nc6 Qbf4 Qbd5 Be4 Ra3 Rc3 Bh1 Bb1 Qg2 Bc2 Qb2 Ra1 Qc1 d1N Qcd2 Ne3 Rb3 Nf5 Ra3 Rc4 Rd3 Raa4 Re8 Rc5 f8Q Rc3 Qb4 Ra1 Rf8 Rd1 Qa3 Be5 Qad6 Rf7 Qb4 Bg7 Qh2+ Nh4 Nd4 Bh6 Bb6 Ra3 Kc6 Nc5 Qg1 R8a4 Ba5 Nf5 Bf3+ Qg4 Qg2 Rc3 Kb6 Bg7 Ba8 Qgf4 Nc6 Na6 Ka7 Qef2+ Kb7 Q2e2 Qh3+
3Bn3/1Pk1Rrb1/r4Qbq/1B2Nr1Q/r4Q1K/b1qn2n1/2RnN1P1/2Q2N2 b - - 0 1 illegal: No possible last move, all moves rejected
4nrbk/1BB1PB2/4r1nQ/4r3/1n1r2Pr/1rBq1n1R/3bQ1KN/R3N1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 c4 Kf7 g4 Kg7 b4 d5 e4 a5 c5 h5 g6 h4 b6 d3 b7 d4 e5 f3 c6 a4 c7 d2 b5 a3 e6 h3 e7 h2 b6 f4 Ne2 a2 Ba3 d3 Ng1 Be6 c8Q Rh5 Qe2 d1R Qd2 Re1 Qb4 d2 Qb2+ Nf6 Nc3 d1R Na4 Kh8 Qb3 Qd3 Nh3 Nc6 b8B Ne5 b7 Bg8 Qc1 Ne8 Bg2 Bh6 Bc7 Rb8 Bb4 Rf5 Qe3 Rf6 Qc3 Re6 Ng1 Bg5 Nc5 Bh6 Rc1 a1N Qcd2 Nc2 Bc3 Nb4 Ra1 Bg5 Qe4 Re3 Qe2 Rd2 Kf1 f2 Qc6 Bh6 Bf3 Rd1+ Kg2 f1N Bd5 Nd2 Qb6 Nf3 g7+ Kh7 Be4+ Ng6 Bc6 R3e5 Qa6 Rd8 b8N Rd4 Bb7 Rb1 Nbd7 Rb3 Qb6 Bf7 g8B+ Kh8 Bh7 Bg8 Qd6 Nf8 Bg6 Bg5 Bf7 Ng6 Ne4 Bh6 Ndc5 Bg5 Nd2 Bh6 Nf1 Bg5 Nh3 Bh6 Rg1 h1R Nh2 Bg5 Rgc1 Bh6 Ng1 Bg5 Nf1 Rh4 Nh2 Nd2 Qd1 Qe4+ Nhf3 Rf6 Nh3 Nf8 Bc4 Qb1 Nd3 Bh6 Nde1 Qd3 Nc2 Rg6 Qe2 Bg5 Rh1 Rgh6 Nh2 f3+ Kf2 Rg6 Nf1 Rf6 Kg3 f2+ Kg2 Rg6 Ng1 Rgh6 Nh2 f1R Ne1 Rff4 Qa6 Nf3 Nf1 Rf7 Rh3 Bd2 Qe6 Rff4 Nh2 Rhf6 Qf5 Ng6 Qg5 Rfd6 Bcd5 Rf8 Bf7 Rde6 Qh6+
1bB1r1n1/qP6/k4Brb/4nN1N/bQn2b1b/B1R4b/1RQP1nR1/6KB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 c5 e4 Kc7 h4 Kb6 h5 f5 e5 g5 h6 a5 e6 c4 h7 g3+ Kg2 a4 e7 c3 e8B f3+ Kh3 a3 d6 f4+ d7 f2 Kg2 f3+ Kh3 g2 Kh2 c2 Bb2 c1N Ne2 g1B+ Kh3 g4+ Kg3 a2 Qc2 Nd3 Bh3 f1B Nbc3 f2 Nf4 Qe7 d8R Bh6 Rb1 a1B Nce2 Nc6 Rh2 Bd7 Ba3 Nce5 Rc8 Ra6 Rb2 Ka7 Bf7 Rg6 b6+ Ka6 b7 Ba4 b8Q Qa7 Nh5 Bg2 Nd4 f1N+ Kh4 g3 Rc3 Bge3 Bd5 Bf2 Nf5 Ne3 Bc6 Bf1 Bh1 N3c4 Rg2 Bfe3 Qf8 Bef4 Qe7 Nf2 b5+ Ka5 b6 Ka6 Ra2 Bb2 b7 Ba1 Qb4 Bb2 Rh2 g2 Bg4 g1B Rg2 Ba1 Rb2 Bgh2 Bh3 Ne7 Bg4 Re8 h8B Ng8 Bf6 Rb8 Rgg3 Bh3 Rg2 Rd8 Ne3 Re8 Bc8 Nf7 Nf5 Bb8 Qcb3 Nfe5 Qd1 B2f4 Qc2 Bfg5+ Kg3 Bh4+ Kh2 Bf4+ Kg1 Bh6 Rd3 Bf4 Rbb3 Bd4 Rf3 Bde3 Rb2 Bh6 Rfg3 Bef4 Rc3
2KNb3/1P1rB1n1/1Qn1r1Rr/n1nQk1B1/1NR3n1/6q1/1P1Br1n1/4bB1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 g4 c5 d4 h5 b6 f5+ Kd3 h3 Kc4 a4 Kb5 c4 e4 f3 g5 c3 b7 f2 g6 f4 g7 h2 Qd2 f3 Na3 c2 Qe2 h4 Bh3 f1N Qe1 f2 Be3 c1N Bh6 Qc7 Nc2 a3 Qa5 a2 Bd2 Ne7 g8Q Rh7 Qb6+ Nbc6 Nb4 Nb3 Rc1 a1N Rc4 Nc5 Ne2 Ne3 Rg1 h1R Bf1 h3 Ng3 Rh2 Nh1 N7f5 Rg6+ Be6 Qf7 Ng7 Qf3 Ra6 e5+ Ke7 Qh5 Bf7 e6 Kd6 Qf5 Nab3 e7+ Nge6 Qf3 Ng2 Qe4 Na5 e8N+ Kd7 d6 Ng7 d5 Be7 Bh6 Bh4 Bd2 Qb8 Nc7 Be8 Ne6 Qc7 Be2 f1N Nd8 Nfe3 Bf1 Ng4 Qd3 Nf4 Qf3 Re2 Qg2 h2 Qf3 Bf7 Qb3 Be1 Qf3 Ke8 d7+ Ke7 Qd3 Ng2 d6+ Kf8 Qd5 Be8 Nf7 Rh6 d8B Kg8 d7 Qg3 Be7 Rh7 Nf2 h1R d8B R1h6 Beg5 Kf8 Bde7+ Kg8 Rd6 Rhe6 Nh1 Rhh6 Nd8 Kh7 Qe5 Kg6 Qd4 Kf5 Qd5+ R6e5 Rg6 Ra8 Bge3 Rc8 B3g5 Rc7 Qa6 Rd7 Kb6 Rd6 Kc7 Re6 Qd7 Rd5+ Kc8 Ke5 Qb6 Rd3 Bf8 Rdd6 Qf7 Rd7 Bfe7 Nb8 Qf3 Nbc6 Qd5+
R1N1Bb2/4N3/3BQqr1/Bbr3Rq/2k1n2n/P2n1b1p/2P2rq1/1K1NQB2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 g4 d5 f4 h5 a3 e5 f6 Ke6 g6 b5 f7 d3 g5 h4 g7 b3 g6 b2 Ra2 h3 Ra1 d4 f5+ Kd5 f6 e4 Bg2 b4 Bf1 e3+ Ke1 d2+ Ke2 b3 Kd3 e2 Nf3 Ra5 Nh4 Na6 Rg1 Bd7 Qe1 d1Q+ Bd2 Ne7 g8B Nf5 g7 Rc5 Rg5 Rh6 Ng6 Qe7 Ra2 Qe5 Bh7 Nh4 g8Q Be8 Nh8 Rg6 Nc3+ Kc6 Ra1 b1Q Ra2 Qd5 Rb2 Qa1 Rb1 Qg2 Rb2 Qdb1 Nd1 Kb5 Ba5 Bc6 Kd2 d3 Bc3 Kc4 Ba5 Qba2 Rb1 Qe5 Kc1 Bb5 Rb2 Qa1+ Rb1 Bd6 f8N+ Qed5 f7 Qf6 Nd7 Bf8 Rb2 d2+ Kb1 Qdf3 Nf2 d1B Nb6+ Kd4 Nc8 Qh5 Bd2 Kc4 Ba5 Rh6 Be4 Rg6 Bc6 Nb4 Be8 Nd3 Qd2 e1N Qe2 Nef3 Qe1 Be2 Nd1 Nd2+ Ka1 Ne4 Kb1 Rh6 Ng6 Bf3 Nge7 Rg6 Nd5 Bh6 f8B Bg7 Bd6 Bh6 Ra2 b2 Qe6 Bf8 Ra1 Rh6 Rg8 Rg6 Nde7+ Kd4 Ka2 b1R Rh8 Rb3 Rb1 Rbc3 Rb3 Rf5 Kb1 Rcc5 Rb2 Bg4 Rb3 Rf2 Rb2 Bf3 Rg8 Ba4 Rb8 Bd7 Ra8 Bb5 Qd7 Kc4 Qc6 Rh6 Rg5 Rg6 Qd7 Rg8 Qf5 Rg6 Qe6+
B7/Qr1N1bn1/1Q1r1n1q/R1KR2b1/1R2pq2/3PB3/P1NR1nQ1/2b2krq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Kf4 d6 c5 f3 Kg3 d3 Kf2 d7 h5 g5 e5 g6 b5+ Kd5 b3 g7 c4 f6 b2 f7 h3 f4 e4 f5 h4 f6 c3 Ne2 b4 Qc2 h2 Kc4 b3 Qd2 c2 Na3 b1Q Qa5 h3 Nd4 b2 Qa7 Be7 f8R Rh6 f7 Nf6 g8Q Nc6 Nb3+ Qb6 d8Q Nd4 Nc5 Nf5 Nd7 Rb8 Qg2+ Ke1 Bf4 c1B Be3 Rb7 Rh8 Rg6 f8R Ng7 Rh5 Qc7+ Rc5 Qf4 Rd5 Qh6 Rg1 h1Q Qdb6 h2 Rh8 Qf4 Rhh5 Qc2+ Kb5 Qd2 Rb1 Bd8 Kc5 Rh6 Ne5 Be6 Nd7 Bf7 Rhe5 Nfh5 Rg5 Rd6 Rgf5 Nf6 Be2+ Qf1 Bd1 Be7 Ba4 Bd8 Bd4 Qh6 Be3 Be7 Bc6 Bd8 Ra1 b1R Rf2 Be7 Rd2 Bd8 Qf3 Be7 Rgg5 Bd8 Qg4 Qf4 Nc2+ Kf1 Qg3 Ng4 Rgf5 Bg5 Rfe5 Nf6 Rf5 Rb8 Ba8 Rb7 Qg4 Qhf3 Rfe5 h1N Rf5 Nf2 Rfe5 Rb4 Rb1 Qfh1 Rf5 Ra4 Rb5 Rb4 Ra5 Rb3 Rd4 Rb4 Rfd5 Rb1 Rb4 Bb2 Na3 Ke1 Rc2 Rd1 Qg2 Bc1 Rcc4 Ke2 Rc3 Rf1 Rc2+ Ke1 Rd2 Rg1 Qg4 Kf1 Nc2 Rb8 Qf3 Rb7 Qg2+
3r1N2/4rbnr/3nQqR1/3p2B1/P3Q1nq/1N1K1kN1/1P4Rb/1RbR1Bq1 b - - 0 1 illegal: No proof kernel
n2qrRQ1/3B2NK/4q3/b1p2PP1/NrbnNR2/5q1k/1B2Q3/r1N2Rnb b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 a5 Kf4 h5 Kf5 e5 Kg6 a4 d4 a3 b4 a2 f4 e3 g4 e4 g5 e2 b6 e1Q b5 e3 d6 Ke6 d7 e2 b7 h3 b6 h4 Qd2 h2 Bb2 h3 Nc3 Nf6 Ne4 Nc6 b8Q Rh4 b7 Bb4 Kg7 Kf5 d5 Kg4 f5 Nd4 d6 c5 Rd1 Qe8 d8N a1R d7 Ba5 Ne6 Nd5 d8R Nc7 Rc1 Bd7 Rc4 Bb5 Qc8 Qd1 b8N e1N Qe2+ Nef3 Nd7 Qd2 Ra4 Bc4 Nb6 Rb8 Rb4 Na8 Na4 Qc6 Rh8 Qd5 Qg8 Re8 Kg6 Qe1 Ng7 Qd8 Qd2 Qe3 Ne2 Ng1 Nc1 Qb3 Qe2+ Qf3 Nf6+ Kg3 Bg2 Qfd5 Be4 Qe6 Bc6 Bb5 Rb3+ Ngf3 Nc3 Nc2 Na4 Rb4 Qf8 Bc4 Kh7 Nd4 Rf1 h1Q Bd7 h2 Ne4+ Kh3 Qf7 Qg2 Rf8 h1B Qg8 Qg3 Rd3 Ng1 Rf4 Qe3 Rd1 Qf3 Rf1
KN2b3/RR2b1qb/4n3/1pB1Pk1B/q2Br3/1Q1N1Qq1/QBr2nP1/3n1r2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 c5 Ke4 f5+ Ke5 h5 a4 b5 d4 c4 e4 b3 g6 f3 a5 b2 g7 c3 a6 c2 a7 h4 Ra6 f2 Be2 f1N Na3 b1B Bb2 c1Q Nc4 h3 Nb6 h2 Nd7 f4 Nh3 f3 Qb3 f2 Bh5 Qe3 Nf4 Qa5 Nd3 Nf6 g8Q Qa4 Ra5 Na6 Nb8 Nc5 d6+ Kd8 d5 Ne6 d7 Ke7 Qg4 Qg3+ Qf4 Qg7 Qf3 Ne3 Rc1 f1R Rc7 h1Q Rb7 Nd1 Bd4 Qg6 d6+ Kf7 d8B+ Be7 d7 Re8 Bc7 Qh3 d8B Bd7 Bd6 Qh4 B6c5 Qg3+ Nf4 Ng4+ Kd5 Ngf2 Nd3+ Kg8 Bb2 Kh7 Bdb6 Qg7 e5 Rc8 Bcd4 Rc2 Bbc5 Be8 Ra6 Bf7 Kc6 Be8+ Nd7 Rd8 a8Q Kh6 Raa7 Kg5 Kb6 Rc8 Nb8 Re2 Rd7 Re4 Qad5 Bc2 Kb7 Rc7+ Ka8 Rc6 Qe3+ Kf5 Rb7 Rc8 Qa2 Rc7 Qdb3 Bb1 Bb6 Rc2 Qf3+ Kg5 Qf8 Rc8 Bc7 Rf4 Nc5 Bh7 Nd3 Re4 Bcb6 Rc1 Qf3 Rc2 Qe2 Kf5 Bbc5 Qb4 Qe3 Qa4 Qf3+
K1n2r1q/N3R3/q1p1NPnR/Bn3BbR/Q3rb1B/Q3q3/r1B1bP2/2k5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kb4 g4 a5 b6 e5 b3 h5 b7 h3 g5 c6 d5 c3 f6 h2 d6 c2 g6 a4 d7 h4 g7 h3 Bc4 a3 Be3 c1B Bg5 a2 Bd3 Qb6 d8B Bg4 Bc2 Ne7 g8B Bh6 Nc3 Ka3 b4 Kb2 b5 Nc8 Bh4 Nd7 b8Q Bcg5 Be6 Qa6 b6 Be2 b7 Nf8 Bf5 Ng6 Nf3 Rf8 Qbd6 Bf4 Q6d3 Bhg5 Nb5 Ra7 Re1 h1Q b8R h2 Ba5 Qg1 Rb7 h1Q Rh7 Qg3 Rh5 Re7 Rc1 a1R Na7 Ra2 Qd6 Qhh3 Nd4 Qc3 Ne6 Qh2 Bg4 Qe3+ Kf5 e4 Q1d4+ Qc3 Qa4 e3 Ke4 Qb3 Kd4 Qbd3+ Kc5 Ree8 Ng7 Re4 Bf5 Qb3 Rh6 Qh3 Ra1 Qg8 Rad1 Qh8 Rd5 Qg3 Ne6 Qf3 Bd1 Kc1 Re5 Bb5 Rh1 e2 Bc2+ e1N Qd3 Qh3 Qdb3 Be2 Qba3+ Rb2 Rh2 Nf3 Rh5 Nd4 Rh6 Nce7 Kd6 Qc3 Kc7 Nc8 Rh5 Nb5+ Kb8 Qe3 Ka8 Nbd6 Rd5 Nb5 Rd7 Rd4 Rc7 Re4 Re7 Bb8 Rh6 Bbf4 Bg3 Qd4 R2h5 Qe3 Q3b3 Ra2 Bh4 Ra1 Qc3 Ra2 Qca3+
2b3R1/2Nq1rP1/3n1Nqp/2BPn2Q/3r3b/K1kN1rNB/R2nq2Q/1B4b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 a5 Kb3 c5 g4 f5 e4 h3 b6 c4+ Ka4 f3 b4 f4 b7 h2 g5 c3 g6 c2 b5 f2 b6 f3 g7 h6 Nd2 Ne7 Ra2 Qd7+ Ka3 a4 Ne2 Ra7 Nb3 Nbc6 b8N Nf5 b7 Ne5 Bh3 f1R Be3 c1N Nc5 f2 Ng3 Be7 Qh5 Rd8 Nd3 Nb3 Na6 Bf6 b8N Nd2 Nc7 Bh4 Rg1 h1Q Rg2 Qb5 Nd7 Qg1 Nf6 Qe8 Rb2 Qd7 Rb8 Rb7 Rh2 Ra7 Ne2 Qg6 Ng3 Rg1 Rg2 f1Q Rh2 Qe2 Bf2 Ke7 d6+ Kf7 Rg2 Rf1 Bg1 Rf4 d5 Rf8 Bc5 Rf3 Kb4 a3 Rh2 a2 Ra8 Qc6 d7 a1B d8Q Bd4 Qd6 Qd7 Rb8 Rb7+ Ka3 Bg1 Rg2 Rb4 Rf2 Ng4 Qf4 Rd4 e5 Nd6 e6+ Ke7 Rh2 Rf7 Ra8 Ba6 Rg8 Ne5 Nfe8 Kd8 e7+ Kc8 Nf6+ Kb7 Bb4 Kb6 e8B Bc8 Bc5+ Ka5 Rg2 Qdf5 Ba4 Qd7 Bc2 Qf1 Bb1 Qe2 Na6 Kb5 Nc7+ Kc4 Rh2 Kc3 Rf2 Qe3 Rg2 Nb3 Ra2 Nd2 Na6 Qe2 Nc7 Re3 Qf2 Rf3 Qh2
3rbRRn/1Q3p1K/r6Q/kP4P1/2R1NnqN/r3q2n/1q3b2/B1bQ1B1R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 a5 Kf5 c5 e4 Kc7+ Ke5 Kb6 b4 f3 d4 h3 g4 h4 g5 h2 d6 a4 d7 a3 Kf5 f2 e5 a2 e6 h3 e7 c4 e8Q c3 d5 c2 d6 Ra6 Qh5 Qf6+ Kg4 Qb2 Kf5 Nf6 Ne2 Nc6 Qe4 Ne5 Qh6 Ng6 Ng1 Nh5 Nc3 Nhf4 Nf3 Ra3 Rb1 a1R Kf6 Rg8 d8R Bd7 Re8 Nh8 Nh4 Ra6 Bd2 R1a3 Rc1 Bc6 d7 Bc5 Ra8 Rd8 Kg7 Be3 Kh7 Bc5 Rd1 c1B Qe1 Bd4 Ne4 Be3 Bc3 Bd4 Rg1 h1Q Rg4 h2 Qd2 Bc5 Re1 Qg2 Qd1 h1N Bg7 Qa2 Ba1 Qb2 Rc8 Qg3 Ra8 Qe3 Rc8 Rg8 d8R Bd4 Rf8 Bc5 Bh3 f1Q Ra8 Qfe2 Bf1 Nf2 Rac8 Kb7 b6 Be8 b5 N2h3 Rd8 Rg6 Rg8 Rd6 Rc8 Bc6 Rcf8 Rd8 Nf5 Be8 Nh4 Kc8 b7+ Kc7 Qg7 Kb6 b8Q+ Ka5 Qb7 Ba7 Qh6 Qc4 Rg1 Qc8 Rh1 Qg4 Re2 Qd3 Rc2 Bf2 Rc5 Qe3 Rc4
1bB1r1N1/Bkrp4/3Kn3/1B1n4/2P1BPbq/2Rb4/1Q1Qrn1q/Q1Nq2R1 b - - 0 1 illegal: No possible last move
q2r1NNk/1RP2r2/1Bb3Kn/3n1r2/PQ3bp1/5BN1/3Q1RnR/qq3b1R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 e5 Kg4 d5 c4 b5 h4 g5 a4 Kg7 f4 d3 c5 b3 c6 b2 c7 d4 Nf3 b4 Nh2 b3 Ra2 e4 Nd2 b1Q Bg2 b2 Nhf1 e3 Ng3 e2 Nde4 e1N Bf3 d2 Nf6 Rh7 h6+ Kh8 Kh5 g4 Kg6 d3 h5 Rf7 h7 Nh6 Ng8 Nd7 f6 Qa1 f5 b1Q Ba3 Be7 Bc5 Bb7 Bb6 Bc6 Qc1 d1B Rf2 Bf8 Qd2 Be2 Rhh2 Bd6 Rh1 Rf8 f7 Ra5 f6 Qa8 Rhh2 Rd8 f8Q Bf4 f7 Nf6 Qfb4 Rf5 f8N Ng2 Rh4 Nf7 Qbb2 Qc2 Qdc3 d2 Qbb3 Rfd5+ Qd3 Qcb1 Qb4 Bf1 Rh1 d1R Ba7 Rb5 Qc2 R1d7 Qd3 Nd6 Bc5 Nf5 Qdd2 Rf7 Be3 Be5 Kg5 Kg7 h8R Be8 Rh6 Nd7 Rb6 Nf6 Rb7 Bc6 Bc5 Bd6 Bb6 Re5 Nd7 Kh7 h6 Nd5 Kh5 Bc5 Kg5 Be3+ Kh5 Bf4 Nf8+ Kh8 h7 Kg7 h8R Rd6 Rh6 Rd8 Rg6+ Kh8 Rg5 Nh6 Rf5 Qab2 Kg6 Q1a1 Rfh5 Ref5 R5h4 Qbb1 R4h2
BNn1Q1NN/B1P3n1/r2B1b1n/1K3bqP/2N2pqR/1R1q1Q2/1r6/k2r2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 a5 b4 f5 h4 d5+ Kd3 g5 c4 g4 c5 g3 b6 g2 c6 a4 c7 a3 h6 a2 h7 f3 h5 f2 b5 f4 b7 Bf5 b6 Ra6 Be2 f1Q Rh2 Bg7 Qc2 Nd7 b8B Nh6 b7 Bf6 Na3 Nb6 Qb3 Nc8 Nh3 g1B Rb1 a1N Nf2 Nc2 Ba7 Ne3 b8N Qg8 Qb7 Qg5 Rh4 Qfg2 Rb5 Q2g4 Rb3 Re8 h8N Re7 Kd2 d3 Kc3 d2 Kb4 d1R Bf3 d4 Kb5 d3 Bh1 d2 Nc4+ Ke6 Ba3 Rg7 Nb6 Ke5 Bd6+ Kd4 e5 Rg8 e6 Rg7 Rb4+ Kc3 e7 Kc2 e8Q Re7 Rc4+ Kb1 Qf3 Ka1 Rc3 Re4 Rb3 Rb4+ Kc6 Rb5 Ne4 Rb4 Rd3 Rb2 Rb3 Re1 Bg2 d1Q Kb5 Qd3+ Nc4 Rd1 Bh1 Nd5 Bg2 Nde7 Bh1 Ng6 Bg2 Nf8 Bh1 Ne6 Bg2 Bc3 Nf6 Ng7 Ng8 Be5 Qe2 Bed4 Ba8 Bf6 Qf3
kq1B3r/2P4P/n5Br/r1b1nR1q/NR1N1p2/1B1b4/b1q2RQ1/Kn4QR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 a5 e4 g5 b4 d5 h4 Kd7 c4 Kc7 Kc2 Kb7 Kb2 f5 e5 a4 b6 f3 b5 g4 h6 d3 e6 d2 h7 d4 h5 f2 e7 d3 e8B g3 c5 g2 h6 Nf6 Ne2 g1N Ra2 a3+ Ka1 Nd5 Bg6 Na6 Nd4 Nf3 Nc3 Ne5 Na4 Be6 c6+ Kb8 b7 f4 Bb2 Nc3 c7+ Ka7 b8R Bc5 Bh3 Nb1 Qg1 d1Q Bc3 f1B Rf2 Bb3 Be6 Ba2 Bb3 d2 Rc8 Qh5 b6+ Kb7 Bb2 Qg8 Rf8 d1Q Rf5 Qb8 Bc3 Qc2 Bb2 Rd8 h8Q Bd3 h7 Rd6 Qg7 Rf6 Bgf7 Rh6 Bg6 Qa7 Bc3 Rh8 Bb4 Ka8 Qg8+ Bf8 Be7 Qb8 Bd8 Bc5 b7+ Ka7 Qf7 Qc8 b8R Qb7 Nc3 Qb4 Rb7+ Ka8 Qd5 Qb6 Bc4 Bb3 Qdg2 a2 Bg8 Qa7 Rb4+ Bd5 Be6 Qb8 Bef7 Qa4 Kb2 a1R Be6 Qad1 Bef7 Ra5 Na4 Qb3+ Ka1 Qc2 Qh3 Ba2 Bb3 Be7 Qhf1 Bc5 Qfg2+
r1br1bNQ/3rB2R/bQB1k3/r3nq2/2P2nBK/rn6/BN1R2Pp/1R6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 e4 d5 b4 h5 b6 a5 b5 f5 b7 h4 g6 d3 c3 d2 g7 a4 e5 a3 e6 f3 b6 a2 Bd3 f4 Bf5 d4 Na3 h3 Rb1 a1R Qb3 d1R Nc4 d3 Bg4 d2 Ne2 R8a5 Nb2 Nc6 b8R Qd3 b7 Qf5 Nd4 Ne5 Qb6 Nf6 g8B Nd5 Nc6+ Kd6 e7 R1a3 Ra8 h2 Ra7 Kd7 e8B+ Kd6 Bh7 Ke6 b8Q Rg1 Rf7 d1R Bg8 Rd3 Be3 Rgd1 Bc5 Rd4 Be7 R1d2+ Kf1 f2 Rd1 R2d3 Rd2 Rda4 Ke2 f1B+ Kf2 f3 Kg3 Nf4 Rg1 Be2 Rb1 Rd7 Qa8 f2 Rh7+ Nf7 Kh4 f1N Bb4 Bea6 Ne7+ Rd6 Bc6 Rd7 Bd6 Rd4 Bc5 Rd8 Qab8 R4d7 Bd6 Kf6 Bc5 Ne5 Ba2 Rg8 c4 Ke6 Rd5 Rh8 Ng8 Nd2 Be7 Nb3 Nf6 Rg8 Rd2 Rg7 Ng8 Ra7 Qd4 Ra8 Qbb6 Rf7 Bd6 Rfd7 Be7 Ned3 Qg7 Ne5 Qh8
1Q1b3r/2B2RnN/2r4Q/3b2P1/5N1K/1nRQr1RP/B5p1/nQbbkb1q b - - 0 1 illegal: No proof kernel
3Q4/q3b1nN/RrBQ4/1k1npR1R/2NnrB2/2nr3P/BbBnb1P1/4K3 b - - 0 1 illegal: No proof kernel
r1b1Q3/bR1r2N1/k6P/1nB2b2/1K2b2r/2RP1BN1/1B1p1R1n/nQq1b1B1 b - - 0 1 illegal: No proof kernel
1N4Nq/4bBBb/1nK1N2p/1R2B1Q1/1P1r2n1/2NQRkPr/r2n4/2bb2b1 b - - 0 1 illegal: No possible last move, all moves rejected
4B3/1bbQ1Kb1/1N1PQ1NP/1q1Q2Q1/4N3/p1Bb1k2/nR1n2r1/R1nr1rb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 f5 h4 c5 b4 g5 b6 a5 h5 f3 Ke3 g3 b7 c4 h6 a4 b5 g4 Kf4 f2 b6 g2 Bb2 c3 Rh3 c2 Ne2 g1B Nd2 c1N Bc3 a3 Rh2 Na6 b8N g3 b7 g2 Nd7 Nf6 Kg5 f4 Kg6 f3 Nf4 Qb6 Bb5 f1B Kf7 f2 Ng6 Rg8 Qh5 Bd3 Qg5 Qa5 Nb6 f1R Be8 Qb5 b8Q+ Nc7 Nf4 Bg7 Qa7 Bb7 Ng6 Rd8 Qa4 Na6 e5+ Kc7 e6 Kd6 e7 Nb4 Qd1 Nba2 Qe2 Be3 Qe1 g1B Ne4+ Kc7 Qd1 Bf4 Rb2 Rd7 d6+ Kc6 Qdg4 Be5 Qe6 Bg3 Nf2 Ne4 d5+ Kc5 Ne5 Nd2 Ng6 Rd8 d7 B3e5 Ba5 Bf4 Ne4+ Kd4 Bb4 Ke3 Bc3 Rc8 d8Q Kf3 Qdd7 Bc7 Qdc6 Ra8 d6 Ra4 Qcd5 Rb4 Rc2 Rb1 Rb2 Ne2 Bc6 Rbd1 e8Q Nec1 Q8d7 Rf8+ Ke7 Rf4 Ke8 Rg4 Kf7 Rg2 Qc8 Qc5 Be8 Qb5 Qcd7
1b1K1n2/QR1BRBk1/1P2R3/rnrp2bb/r4n2/r5q1/1B1P1Nr1/2R2Q1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 a5 Kf3 d5 e4 f5 c4 Kf7 g4 h5 b6 h3 c6 a4 g5 h2 c7 h4 e5 a3 g6+ Kg7 c5 h3 c6 a2 e6 Qd6 e7 Nf6 e8B Ra4 Qc2 Na6 Qd1 Rg8 Nc3 Nh7 Bb2 Be7 Nge2 Nf8 Nd4 Bg5 Rc1 a1B Rg1 h1R Bb5 h2 Re1 Rg1 Re6 h1N Ne4 Rg2 Nf2 Ng3 Qe2 Nh5 Bf7 Bd7 c8Q Nc7 Qc4 Be8 Qa6 Ra5 Ba4 Nb5 c7 Qe5 c8R Qd6 Ke2 f3+ Kd3 Qg3 Rb8 f4 Rb7 Rh8 Qa7 Rg8 Ba3 Bc3 Ne2 Be5 Bb2 Rh8 Nc3 Bb8 Nh1 f2+ Re3 f1R Nd1+ Kh6 g7 f3 g8R f2 Rg7 Re1 Qf4 f1R Ndf2 Rh7 Qf3 Re2 Ree7 Re4 Rg8 Rh8 Rg6+ Kh7 Rge6 Nf4+ Kc2 Rd4 Kb3 Kg7 Qd3 Rh3 Qf3 Nc3 Bd7 Rda4 Qe2 Rc5 Qd1 Raa5 Kb4 Rh4 Qe2 Re1 Qf1 Re3 Ba3 Nb5 Bb2+ Rcc3 Rf6 Rca3 Kc5 Re4 Kc6 Rea4 Rc7 Rc4+ Kb7 Rc5 Kc8 Ne2 Kd8 Rha4 Rb7 Nf4 Bg8+ Kh8 Bge6 Bh5 Bf7 Kg7 Rfe6+
N1n3B1/k1BrbP1n/R3bb1r/1Q5R/rN2BnQb/R1P4R/1pq5/5K1b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 f4 e5 a4 d5 h4 Kd7 a5 Kc6 h6 b5 a6 Kb6 a7 g5 h5 b3 f6 b4 f7 d3 c3 e4 f5 b2 h7 g4 h6 e3 f6 e2 Qd2 d4 Kf2 Nc6 Qf4 Nce7 Nd2 b1B Ra4 b3 Rh3 b2 Ngf3 Qd5 Ra3 Qe4 Ne5 e1B+ Kg1 g3 Ndc4+ Kb7 Nb6 g2 Nc6 d2 Qg4 d1R Bf4 d3 Nb4 d2 Bc7 Qd3 Be2 Bh4+ Bf1 Bg7 f8Q Ba2 f7 Qc2 Ra5 Bd5 Rg3 Nf6 Qe8 Bd7 Rh3 Nc8 Ra3 Bf8 Qee2 Be7 Qb5 B5c6 Bg3 Bf5 Kf2 g1B+ Ke2 Bh1 Bc7 Bd4 Bg2+ Nd5 Be4 Bd7 Bf5 Nf6 Bd3 Rc1 Bf5 d1N+ Kf1 Ra1 Rb3 Rd8 h8R Ra4 h7 Nf2 Ra3 Nd3 Rg8 Rb8 h8R Nf4 a8B+ Ka7 Bh7 Bf5 Bg2 Rd7 Na8 Rb6 Rg6 Rc6 Bg8 Rcd6 Rh5 Nh7 Rg7 Rh6 Rg6 Bh8 Rd6 Be6 Be4 B8f6 Ra6+
2r5/5pB1/3k1NR1/1nr1QB2/qNrr1B1b/bQ1r3N/Pn2RPB1/2n1b2K b - - 0 1 illegal: No possible last move, all moves rejected
3b1nr1/B4pNB/Q2bb1rB/nQ1Rk3/1Rb1rb2/2BPNP2/n4KNq/8 b - - 0 1 illegal: No possible last move, all moves rejected
2bN2Br/Q4pQ1/2Q2R2/Kn6/n2Nq1Pr/r1B1nPbk/1r3R2/1Nr1Qb2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 d4 Kd7 Kd2 Ke6 Kc3 Kf5 Kb4 e5 c4 a5+ Ka4 h5 d5 h3 c6 h4 g3 h2 c5 h3 d6 e3 b6 e2 d7 Kg4 c7 e4 c6 e3 b7 Qe8 d8N Ne7 Bg2 Nd5 Qb3 e1N Qa3 e2 Qb2 Na6 b8Q Nd3 Ra3 e1R Qc2 Ne3 Be4 Re2 Qa7 Bd6 Qc3 Rb2 Bh7 Qe4+ Qb4 Be5 Bd2 Ndc5+ Kb5 a4 Ra2 a3 Bc3 Bd6 Bg8 Na4 Ne2 Bf4 Rc1 h1R Rf1 h2 Nd4 Kh3 g4 Bg3 Ka5 Rh4 f3 Rg1 Qf8 h1B Rf2 Rc1 Qg7 Bg2 Ra1 Bf1 Ra2 Be6 c8Q Nc7 Ra1 Nb5 c7 Bf5 Qe6 a2 c8Q Rb8 Qcc4 Ra8 Qec6 Bc8 Qe2 Rb8 Nd2 Ra8 Rb1 a1R Qe1 Ra3 Ra1 Rb8 Rb1 Rbc2 Rb4 Rb2 Nb1 Rb7 Rb3 Re7 Rb4 Re8 Rc4 Rf8 Rc5 Re8 Rf5 Rf8 Rf6 Re8 Bh7 Rh8 Bg8
B2BbNN1/QB1NP3/qrn4K/P3nb2/Q2rrRk1/2Npn3/nb2nR2/8 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kf3 Ke6 Kf4 b5 a4 f5 c4 d5 h4 b3 e4 b4 h6 b2 h5 d3 a5 d4 c5 d2 c6 d3 h7 b3 h6 Qb6 Kg5 f4 c7 f3 Ra4 f2 Rh3 Ba3 Nf3 Ne7 Nc3 b1R Bg2 Rd8 h8N f1N h7 b2 Ng6 Qa6 h8Q Nbc6 Qh7 Rd4 Rc4 Ra7 Qa4 d1B Kh5 Bc2 Bg5 Ne3 Rg3 Bd7 c8B Re1 Bh4 b1N Bb7 Bb2 Ba8 Rb7 Nf8+ Kf7 Rc5 Ng6 Bd8 Rb6 Rd5 Bf5 e6+ Ke8 e7 Kf7 e8N Nge5 Nf6 Bb3 Qa3 Ba4 Ng8 Bb5 Qa4 Re2 Qh8 g5 Kh6 g4 Rh3 g3 Qg7+ Ke8 Bh1 g2 Qa7 g1N Rd7 Re1 Rf7 Ne2 Rh2 Bd7 Rf4 Bf5 Bb7 Kf7 Rf2 Na3 Bg2 Nac2 Bh1 N2b4 Bg2 Nd7 e5 Na2 e6+ Ke8 e7 Kf7 Nh4 Nde5 Nd7 Ke6 Ng6 Rg1 Bh3 Rg4 R4f3 Rge4 Bg2 Bh3 Nf4+ Kf5 Ne6+ Kg4 Nef8 Kh4 Rf7 Bf5 Ba8 Kg4 Rf6 Rf4 Bd5 Rfe4 Rf3 Ncb4 Bdb7 Nbc6 Rf7 Bc4 Rf6 Bf7 Rf2 Be8 Rf7 Bh7 R7f3 Bf5 Rf4+
k2n2n1/Rp2bNqr/n4Q2/6r1/1b1N3r/Rb1QK2n/1P1P3B/1nRB1BB1 b - - 0 1 illegal: No possible last move
3qQNrB/B4Q2/bRn2qb1/1RbQQ3/4Br1N/2q2q2/2npPqPK/4k3 b - - 0 1 illegal: No proof kernel forced: bxLB
n1BK1Nk1/2rn2NB/5n1q/R1B2b1n/5Nrn/3qp2P/1bN3Pb/Q3R1Q1 b - - 0 1 illegal: No proof kernel
1qn1N2B/1qb5/k1nR1N2/2Kn4/b1bB1QRB/2P1rb2/b2PprB1/6QR b - - 0 1 illegal: No proof kernel
1rN1KB2/6qQ/1r2nk1N/1nbB1R2/1B1N2rn/Q1PP4/bpBq1r2/3R1r2 b - - 0 1 illegal: No proof kernel
bR1Nq3/1NRBb3/1q1R2r1/n1n3Q1/R2PkB1b/1Qn3p1/1P3rBn/3nK3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 e4 Kd6 b6 Ke5 b7 f5 h5 g5 d6 a5 d7 c5 h6 f3 d3 g3 h7 g4 Qc2 g2 Qd2 c4 Na3 f2+ Kd1 g3 Nb1 c3 Qe1 a4 Qe3 c2+ Ke2 a3 Nc3 f4 Qb6 a2 Qb3 f3+ Kd2 Qe8 d8R Nc6 b8R Bb7 Rh6 Nge7 Nd5 Na5 Nb4 Rg8 Nh3 g1Q Rdd6 Nd5 Na6 Nc3 Bg2 f1N+ Ke1 Be7 Nf4 Qb6 Nc5 Nh2 Nfe6 Rg6 Nd8 Ra6 Be3 Ba8 Ncb7 c1B h8Q+ Rf6 Qhg8 Rf7 Rb1 a1N Rh4 Rf8 Bh6 Bcg5 Rc1 Bgf6 Rg4 Bh4 Qg5+ Rf5 Rf6 Kd4 e5+ Rf4 e6 f2+ Kd2 f1N+ Ke1 Ne3 Rg6 Na2 Rc7 Nd1 Rf6 Nac3 Rg6 Bd6 e7 Ba3 Rd6+ Ke3 Qbg8 N1b3 Qf7 Nc5 Qb3 Qa4 e8B Qd7 Bf7 Qe8 Be6 Bb4 Bd7 Ba3 Bg7 Bb4 Be5 Ba3 Qh5 Rf2 Ra4 Bb4 d4 Kd3 Bf1+ Ke4 Bf4 Qa7 Rh6 Rg6 Qg5 Qb6 Bfh3 Ne6 Bf1 Be7 Bh3 Nc5 Bf1 Rg8 Rd6 Rg6 Bg2+
1qBbN2B/RRBB3k/b7/q1n3Q1/1rQPr1n1/Pb1pbR1n/1K4N1/4b3 b - - 0 1 illegal: No proof kernel
1Q4Rb/2KnB2Q/8/2RbnNb1/qPk1B2r/1q1nr1bQ/B1bP3p/1N1Q4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 h5 e4 a5 b3 f3 d6 a4 b6 f4 b7 a3 d7 f2 g5 f3 g6 a2 g7 h3 Bc4 f1B Bb2 f2 Ke6 h4 e5 Ra3 Nf3 Nh6 g8Q Ng4 Nh2 Bd6 Qh7 Qe8+ Qe7 Bd3 Nf3 f1Q Nh2 Qf3 Nc3 c6 Rb1 a1B Qc2 Kd4 b4 c5 Bd5 c4 Nf1 Bh7 Na2+ c3 Qd1 Kd3 Bb3 c2 Nc3 c1B Ba2 Qg3 Ne3 Bg8+ Kf5 Bd5 e6 Be5 Rg1 Rb3 Ba3 Bcb2 Rc1 Bd6 Nb1 Bf6 Qf7 Bd8 e7 Rh5+ Kg6 Bh8 Bb2 Bf4 Bg7 Ne5+ Kf6 Qf3 Rc5 Ra3 Rg4 Bg3+ Rf4 Rh6+ Kf5 Rb3 Bf6 Ra3 Qh7 Rc3 Qe1 Qd1 Rg4 Qb3 Rg8 Kd4 Ng4 Re3 Qd1 Rh5+ Bg5 Kd3 Nh6 Kd4 Rb5 Kc4 Ra5 h2 Rb5 h1N Ra5 Be4+ Ke6 h3 Kd6 h2 Rc5+ Kd3 Bf6 Rh4 Bg5 Nf2 Bf6 Qef7 e8B Qa4 Bg5 Qc4 Bg6 Qcb3 Bf5 Be7+ Kc7 Kd4 Bf6 Bc2 Be4 Nd3 d8Q+ Bd7 Qf8 Bc6 Qc8 Bd5 Qh3 Nd7 Bg5 Bef6 b8Q Be7 Rb5 Kc4 Nf5 Bc5 Bd8 Be7 Ra5 Bef6 Be7 Bg5 Rc5+
2K3Bn/k1b2RQb/1B2R3/1R1b4/1P2r3/b1r1N3/PRnNQ1pq/2nBqb2 b - - 0 1 illegal: No proof kernel
r7/n1K1b3/NN1BRRB1/1QR5/1pq2PB1/b5Qb/P1n2nR1/r1n1qkn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 b5 g4 h5 f4 h3 g5 b3 d6 h4 g6 b2 d7 h2 f6 h3 g7 Nc6+ Ke6 Kd4 f7 Nh6 g8B Nf5 d3 Na7 Qh5 c5 Nd2 Ke3 d4 Kf2 d5 b1N d6 c4 Be2 c3 Nb3 c2 Bg4 Nh4 Ba3 c1N Bh7 Nf3 Bg6 Qc7 Nc5 Kf1 Ne2+ Ng1 Na6 Qc4+ Qd5 Rh5 Nc3 Rh4 Bc5 Na3 Na4 Nc2 Nb6 b4 Ke5 e6 d8Q Be7 f8R Rh8 d7 Rh6 Qd4 Rh5+ Ke4 e5 Bd6 Rh8 Kf5 e4 Ke5 e3 Qc5 e2 Rf6 e1B Qg8 Bd2 d8R Bf5 Re8 Bc3+ Qd4 Bb2 Rc8 Rh4 Rc5 Ba3 Qc3 Rh8 Qe8 Bc8 Qb5 Rd8 Bc7 Rd1 Bd6 Kg2 Rb1 Nb3 B4h5 Ne2 Re1 h1N Bc7 h2 Rc1 Bh3 Bg4 Nf2 Ra1 h1Q Qd3 Bd8 Kd6 Be7+ Kd7 Qf1 Bd6 Qg1 Kc7 Rb1 Rc1 Qd1 Qe3 Qd2 Rh1 Ng1 Rh2+ Kf1 Rg2 Re1 Rd1 Qde2 Rd4 Ra1 Re4 Qe1 Ree6 Nc1 Qg3
2r4N/Br2r3/3QbBqR/N1B1Kn2/P2B1Rkb/2bpQR2/3P1r2/1n2rq2 b - - 0 1 illegal: No possible last move, all moves rejected
n1NR4/3rQ1kN/b3n1bb/7p/2RBNqPK/r2bqP2/1Q4Bn/B2b2B1 b - - 0 1 illegal: No possible last move
6Nb/1Nrq3r/K3kq1B/1rBN2P1/pr1Q3n/3bB1R1/R1B1P1n1/3Qnr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 c5 d4 h5 Kd2 f5 Kd3 a5 Kc4 f3 d6 a4 g5 f4 b6 h3 Kb5 f2 b7 f3 d5 h2 Qd2 c4 Qf4 h4 Ra3 c3 Nd2 c2 Nh3 Qf6 Rg1 h1Q Ra2 Bg7 Ne4 Na6 b8B Rh7 Be3 c1R Bg2 f1N Bba7 f2 Bac5 Bh8 Bf3 Rc2 Rg3 Nh6 Qg4+ Nf5 Nf4 h3 Ka5 h2 b5 Rh3 b6 Rb8 b7 Nb4 Qh4 Nd3 Ka6 Ne1 Bh5 Qg7 Bg6 Qf3 Qg4 h1R Nf6+ Kd8 d7 Rh4 Bf8 Rc7 Ng8 Rh7 Bec5 Nh4 Bc2 Qe7 Bg7 Ne3 Bh6 N3g2 Be3 f1R Bc5 Rf7 Be3 Rc4 Bc5 Kc7 d8N Bf5 d6+ Kd7 Nd5 Rb4 Qd4 Bg6 Qd1 Qff6 Be3 Rh7 Qd4 Rc8 b8B Rc7 Nb7 Ke6 Ba7 Qd7 Bc5 Rb5 Qd1 Rf4 Qd4 Rhf1 Qd1 Rfb4 Qd4 Qdf7 d7 Bd3 d8Q Qd7 Qf8 Bc4 Qd1 Bd3 Qg7 Qf5 Qga1 Qf6 Qd4
1Q1r2NB/1nq2QR1/Kbr1q1bB/4p2q/P3P2r/1n2r3/1kB2RQ1/N2r3Q b - - 0 1 legal: proof: f4 a5 c4 h5 b4 d5 cxd5 axb4 g4 g5 fxg5 hxg4 h4 Kd7 e4 Kd6 Ke2 Kc5 Kd3 b5 a4 e5 g6 f5 d6 g3 h5 f4 h6 f3 g7 b3 d7 Kb4 h7 c5 Bg2 b2 Bf1 f2 Nc3 b1Q+ Qc2 c4+ Ke3 g2 d4 Qc7 d8Q Nd7 d5 Ngf6 g8Q Qb3 d6 Nc5 d7 Nb7 Ra2 Bc5+ Ke2 Bb6 Nd1 c3 Kd3 Qe6 Ne2 g1Q Nf4 Qg5 Ng6 Qh5 Ne3 Rb8 Be2 f1R Rg1 Re1 Ne7 Rd1+ Qd2 Kb3 Qf7 c2 Ng8 b4 Rg7 Ra8 Qdf8 Re1 d8B Nd7 Bd1 Rb8 Qg2 Ndc5+ Kd2 Bd7 Bf6 Be8 Rb2+ Ka3 Qd6 b3 Kc3 Rd8 Qdf8 Qed6 Kc4 Re2 Bd2 c1R+ Bc2 Qdd7 Qd6 Rd1 Qdf8 Qdh3 Bc1 R1d6 Bd2 Rc6 Kb5 Qe6 Qd6 Qcc8 Qb8 Qc7 Qf8 Bg6 Qf7 Na5 Bc1 Ncb7 Ka6 Re1 Nd5 Rd1 Bh6 Rd3 Nb4 Re3 Rb1 b2 Rf1 b1R Rf2 Qef5 Bd1 Nb3 Nc2+ Kb2 Na1+ Rd2 Bc2 Qe6 Ne7 Rhd8 h8Q Rh1 Ng8 Rdd1 Bf4 Qg5 Qhh2 Qh4 Bh6 Qh5 Qhg1 Rh4 Q1h1 Nc1 Rh7 Nb3 Bh8 Rf1 Rg7 Rg1 Qg3 Rgd1 Qgg2
4kbbK/2R4b/1RR1q3/3PPn2/Q4N2/N2Bb3/rQ1pnqbB/1rNnR3 b - - 0 1 illegal: No proof kernel
1R3b2/b2bB3/K1b1nN2/B1p1Nb1P/2Prr1Q1/k1N1Rn2/q1R3r1/1Qq2R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e5 d4 Nf6 Bh3 Ng8 dxe5 gxf4 g5 Qe7 Bf5 Qd8 Bg4 hxg4 Kd2 Ke7 Kc3 f5 Kc4 d5+ Kb4 a5+ Kc5 a4 h4 d4 e4 d3 c4 a3 b4 g3 e6 g2 g6 f3 g7 a2 h5 f2 b6 f1B Kb5 Kd6 b7 d2 e7 f4 e8R f3 Bb2 f2 Qc2 d1R Re5 Na6 b8Q Nh6 g8N Ng4 Qc3 Rd4 Ba3 Bd3 Rh2 f1B Nf6 Nc5 Nf3 g1B Rc2 Nh2 Qd2 Bg2 Qg5 Bch3 Qg4 Ne6 Nc3 Rg8 Rf1 a1Q Qb7 Rc8 Ka6 Qc1 Rb5 c6 Ne5 Nf3 Qh7 Qe7 Rb8 Re8 Qhg6 Qg7 Qh7 Qgh6 Qhf5 Qhd2 b5+ Kc7 Be7 Bf2 Bd8+ Kd6 b6 Kc5 b7 Kb4 Ba5+ Ka3 Qgg5 Rd6 Nf7 Nf4 Rb2 Ng1 e5 Ba7 e6 Rd4 e7 c5 Qh7 Bc6 Qe4 Red8 e8R Nf3 Qeg6 Bhd7 Re3 Re8 Q5f5 Be2 Qb1 Bd3 Qf5 Rg2 Qg4 Qf2 Rbe2 Bh7 Rd2 Ree4 Ne5 Bhf5 Rde2 Qb2 Rd2 Qe1 Rc2 Qa1 Ra8 Qc1 b8B Ne6 Bd6 Qab2 Rb8 Qa2 Be7
b1qbR3/1N2B2b/r4Q1n/1p1n2P1/P1Q2NR1/1b2kbBB/1Nqr3r/4K1N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 d4 Kd6 a4 b5 g4 c5 f6 e5 f7 h5 f5 b3 g5 e4 f6 b2 Nf3 c4 Qd2 c3 Ra2 c2 Nh2 e3 Na3 b1B Bc4 h3 Bf1 h4 Qg2 e2 Nf3 h2 Ng1 h3 Qe4 Be7 f8B Ra6 f7 Nd7 Qg4 Nh6 Bf4+ Ne5 Rb2 Be6 Rb4 Qc8 Bg3 Rh7 Qe4 Rh8 Qd3 Rh7 Qc4 c1Q+ Kf2 Qc2 Ke1 Ba2 Bg2 Bf5 Bf1 Bb3 Bg2 Kd7 d6 Bd8 d5 Neg4 Be7 Ne3 f8Q Rh8 Qf6 Be4 Nf3 Bh7 Rf1 h1B Ng1 h2 Bh3+ Bf5 Rf4 Bf3 Re4 h1B Rg4 Ba2 Rb1 Bb3 Rd1 Bh7 Rdd4 Ra7 Rde4 Ra8 Qb4 Ra6 Nc4 Nd1 Nb2 Nc3 Qc4 Bhg2 Kf2 e1R+ Re2 Qc1 Re3 Rd1 Ree4 Rd2+ Re2 Qc2 Ke1 Qc6 Re3 Kc8 d7+ Kb7 d6 Kb6 Re2 Nd5 Ree4 Qc8 Re2 Bc7 d8N Bh1 Ne6 Bd8 Nf4 Bhg2 Qd3 Kc5 Re5 Bh1 Qe2 Kd4 d7 Bfe4 Qc4+ Ke3 Bb4 Bf3 Re8 Nc3 Be7 Ba8 Bf1 Nd5 Bh3 Bb6 d8N Ba5 Nf7 Bd8 Nd6 Bhe4 Nf7 Ng8 Bg2 Rh2 Nd6 Bh7 Nb7 Nh6 Bh3
1qbKn3/3B1b2/q2r1k2/P1PRBnb1/1R2p1Q1/N3r3/RN1RB1Q1/qq1q4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kd3 h5 Kc4 b5+ Kc5 d5 f4 h4 c4 h3 a4 h2 g4 b3 f6 b4 g6+ Ke6 g7 d3 f5+ Ke5 f7 d2 a5 d4 g5 b2 f6 b3 g6 d3 Nf3+ Ke6 Ne5 Nh6 g8B Nd7+ Kc6 Nf5 g7 Rh3 c5 Re3 Qg4 d1B Ra2 d2 Na3 b1Q Bb2 Qd3 Nec4 Bc2 Bc3 d1Q Be2 b2 Be5 b1Q Nb2 Bb3 Rf1 Qa1 Rf4 h1Q+ Qg2 Q3b1 Rb4 Qh6 Bh7 Qe8 Kc7 Ra6 g8Q Rd6 Q8g4 Qg6 Bg8 Bh6 Bh7 Bg5 f8R Qh6 f7 Nf6 Rh8 Qb5 f8R Qa6 Bg6 Qh2 Rd8 Qg3 Rd7 Ne8+ Kd8 Bd5 Rh5 Qh2 Bg3 Kf6 Bf7 e5 Be6 e4 Bf4 Rb6 Rd6 Bc4 Rd2 Rd6+ Bd7 Bf7 Rh3 Rb3 Rhd3 Rc3 Rd5 Re3 Bg3 Rb6 Bh4 Qb8 Bg3 Rd6 Be5+
RR3K2/b1Rqn3/5nP1/1Q1q1P1B/2Nr2b1/np2rB1n/4Nk1B/bQ4nB b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 h5 g4 b5 d4 h4 a4 c4 f4 b3 d6 b4 a5 e3 d7 h3 Ke6 b2 a6 c3 d5 h2 d6 e2 a7 e1N Nd2 b1N Qf3 c2 Bb2 c1B Bf6 b3 Bd4 Nd3 Ra2 Nf6 Qd5 Nc6 Ne2 Rh4 Be5 Nf2 Qb5 Nh3 Bg2 Bb2 Bf3 Na3 Nc4 Ba1 Rc1 h1Q Rcc2 Rb8 a8B Bg7 Rc1 Bd4 Rcc2 Ba7 Bb7 Kh7 g6+ Kh6 Kf7 e6 Ng3 Ne7 Ne2 Qc7 d8R Qd7 Rf8 Qd1 Bh1 Qd5 g5+ Kh5 Rd8 Bh8 g7 Kg4 g8B Ra8 Kf8 Rb8 Bb2 e5 Bf7 e4 Be5 e3 Ba8 Rb6 Rc3 Ra6 Bb7 Ra4 Bc6 Rh7 Bh5+ Kh4 g6 Rh6 Ng1 Kg3 Ne2+ Kf2 Rc1 Qc5 Bcf3 Qd5 Na5 Rb4 Rc7 Rd4 Nc4 Rh7 Bhg4 Rh4 Bh5 Rg4 Ra1 Rg3 Ra2 Bb7 Rb8 Bc8 Ng1+ e2 f5 Bb7 Ra1 e1N Ne2 Bc6 Be4 Re3 Bh2 Nf3 Ra2 Q7e6 d7 Nfg1 d8Q Qdd7 Beg2 Bf3 Ra1 Bg4 Bf3 Qed5 Qe8 Nc6 Qe4 Ne7 Qb1 Rf4 Rbb7 Bb6 Bfg2 Nc2 Be4 Ne8 Ra4 Ba1 Qd1 Nf6 Bef3 Rd4 Qb1 Na3 Ra8 Ba7 Rbb8
3QB1N1/2b4r/2Q2Rp1/2N3rn/2B1Pb1B/kb2nq2/3b1PNn/K1bRq1N1 b - - 0 1 illegal: No proof kernel
N2RBqqr/nRB2n2/2B1k1p1/5QR1/1r2P1n1/6RP/br3n2/1QKNb2n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 d5 b4 f5 e4 a5 h3 f3 h6 f2 h7 d3 c5 g6 b6 a4 b5 f4 b7 d4 b6 f3 c6 a3 c7 a2 Nc3 Nc6 b8Q Ke6 b7 Nh6 Nb5 Na7 Ba3 Nf7 Qb1 Bb4+ Kc1 Be1 Bc5 Qg8 Ne2 Bd7 Qc8 Rb8 Nec3 d2+ Kb2 d1Q Rg1 d3 Bb6 d2 Rg3 Qf8 Be2 f1N Rg5 Qa4 Nd1 f2 Rg3 Qc4 Rg5 Rg8 h8R Ne3 Rh7 f1N Rg3 Ra8 b8R Ng4 Rb7 Qd5 Rh5 Rh8 Rg5 Rb8 Bd3 Qc4 Bc2 Qd5 Ba4 Qc4 Qd8 Be8 c8B+ Bd7 Bc7 Qd5 Ndc3 d1N+ Kc1 Ndf2 Nd1 Qb3 Na3 Qd5 Bc6 Qb3 Nb5 Qd5 Rc3 Ng3 Rb3 Ngh1 Rg3 Qg8 Qf8 Qf5 Nbc3 Qf3 Nd5 Qf6 Nb6 Qfg7 Qa3 Q8f8 Na8 Qgg8 Rbb3 Rb6 Qc5 Rb4 Ba6 Bc8 Bab5 Bb7 Be8 Bd5 Bbc6 Bc4 Rbd3 Bb3 Rd8 Bd5 Qb3 Bc4 Rb1 a1R Qc2 Ra2 Rbb3 Rb2 Qb1 Rb5 Rb4 Ba2 Rbb3 Rb4 Qa5 Rd4 Rb7 Rdb4 Qf5+
2R1bk1R/1bq5/1NQ1BPq1/4PBnq/3Bp1n1/b1K5/1rN3RQ/qq1R1r2 b - - 0 1 illegal: No proof kernel
n4B1K/Q2R1k1b/1N1q1p2/R5bn/4qqBN/1q2PrRq/4P1Bn/2QR3r b - - 0 1 legal: proof: h4 e5 d4 b5 a4 g5 axb5 gxh4 d5 e4 d6 e3 fxe3 cxd6 Bd2 d5 Bc1 d4 Kf2 a5 Kf3 d5 Kf4 h5 Ke5 d3 g4 a4 b4 a3 c4 h3 g5 h4 g6 d4 c5 h2 g7 d2 b6 d3 c6 a2 b5 h3 b7 Be7 c7 Qd6+ Ke4 Nd7 Kf5 Bg5 b8R Ngf6 b6 Nh5 Qe1 d1Q b7 d2 Bg2 Qb3 Ba3 d1N Nc3 Nf2 Qc1 Ng4 g8R+ Ke7 Rd8 Nb6+ Rd7+ Ke8 Bc5 f6 Kg6 Ra4 Bb4 Na8 Nf3 Rh7 Rg1 h1Q Nh4 h2 Rd1 Kf8 Bc5 Rf4 Nd5 Rf3 Nb6 Qf1 Ba3 h1Q Bb4 Rh8 Bc5 Qh3 Ba3 Rg8+ Kh7 Nh2 Bc5 Rg7+ Kh8 Qh1 Bb4 Ke8 Ba3 Qf4 Be7 Kf7 R7d5 Be6 Rg8 Bf5 b8Q Bh7 c8B Rg6 Rd7 Rh6 Qa7 Qd6 Rb1 a1Q Rb2 Qaa3 Ra2 Qab4 Ra5 Qe4 Rg6 Qe1 Rg8 Q1b4 Rg6 Bf4 Rg3 Bg5 Rb7 Qef4 Bg4 Qbe4 Rd7 Ng7 Qc2 Nf1 Rb1 Qh2 Ng6 Rh3 Rd1 Nh5 Nh4 Qh1 Qc8 Rh2 B2h3 Qg2 Qcc7 Rh1 Qc1 Qh2 Bg2 Qh3 Re1 Nh2 Rg1 Qbe6 Rd1 Qb3 Bf8+
5K2/B1bQ1NNb/2RP3R/q4rk1/1rbqn3/n1NQ2qR/q1qPRp2/5B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 h5 g4 c5 b4 a5 b6 a4 e3 a3 b5 h3 b7 a2 b6 h4 Nf3 h2 Qb3 h3 Bg2 c4 Rg1 h1Q Ne5 h2 Rf1 f3 Qd3 f2 Bb2 c3 Re1 f1B Re2 c2 Bd4 c1Q Nc3 Qc2 Rc1 Nd7 b8Q a1Q b7 Nb6 Qd6+ Kg5 b8R Rh5 Qd7 Nc4 Rb3 Bd6 Ba7 Bc7 d6 f5+ Kd5 f4 Ke6 f3 Kf7 f2 e4 Nf6 Kg7 Na3 Nf7+ Kh4 g5 Rb8 e5 Rb4 g6 Qaa2 e6 Qg1 e7 h1Q e8N Rf5 Bh3 Qe4 Kf8 Qd4 g7 Qg3 g8R Ne4 Rg6 Ba6 Rf6 Bc4 Re6 Qdg5 Ng7 Bg2 Rg6 Bf3 Bg2 Bh5 Re6 Bg6 Bf1 Bh7 Rf6 Kg4 Rh6 Qge5 Re3 Qa5 Reh3 Kf4 Re1 Qg3 Re2 Ra4 Rb6 Rb4 Rc6 Kg4 Ke8 Kf4 Ne5 Kg5 Ke7 Nf6 Kf8 Ne4+ Nf7+
1N2rq2/6R1/2PbRbRr/3pRbnq/b5qN/B4nPB/1Kb1k3/2Q1N2Q b - - 0 1 illegal: No possible last move
KQB5/1n4qk/P1N1B3/3P2B1/4qn1n/1npB1rNb/b2Q2R1/r2NbRn1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 b5 Kf3 h5 Ke4 f5+ Ke5 Kf7 g4 Kg7 d4 c5 a4 f3 e4 h4 d6 c4 Kd5 f2 a5 b3 e5 f4 e6 b4 d7 h3 g6 h2 e7 b2 e8B f3 g5 b3 Nc3 b1N Nh3 b2 Qb3 Ne7+ Kc5 Qc7+ Kb5 Nbc6 d8N Nd2 d5 b1B Qc2 Nb3 Qf5 Ba2 Rg1 h1Q Nf4 Rh3 Qc2 Nf5 Nfe2 Bb4 Rg2 Nh4 Nd1 Be1 Qd2 c3 Ng3 Bf5 Bc4 f1N Bd7 f2 Bd3 Ne3 Bc8 f1N Rb1 Qd7 Kb6 Nh2 Ra1 Kh8 g7+ Kh7 Rb1 N2f3 g8B+ Kh8 g6 Ng1 Be6 Qg7 Ne4 Rf3 Ng3 Bh3 a6 Nca5 Ra1 Nb7 Nc6 Rb8 Ka7 N3c5 Bcd7 Nb3 Rb1 Rbf8 Bc8 R8f4 Ka8 Ra4 Ba3 Ra5 Be7 Ra4 Bg5 Ra3 Rf2 Neg2 Ra1 Nf4 Rg2 Qe5 Rb1 Qe4 g7+ Kh7 Rf2 Qh2 Rf1 Qf2 Rb2 Qd4 Rc2 Bb1 Rb2 Ra1 Rc2 Ba2 Rb2 Kg6 g8Q+ Qg7 Qd8 Kh7 Qc7 Qf7 Qb8 Qfg6 Qe3 Qf6 Rg2 Qg7 Qd2
r3k2b/1Q2Qn1P/b3r3/1n1R1B2/b1P1r1B1/2pR1KN1/r3BN2/NrBqq3 b - - 0 1 illegal: No proof kernel
RN1rQBK1/2r2Bnp/QPb1Q3/q2nq3/7n/bB1r4/1N2P3/1R1nQkn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 f5 b6 f3 d3 a4 d6 h3 g5 h2 d7 a3 Ke6 Kd4 Kf7 c5 b4 f2 g6 f4 g7 f3 b7 c4 b5 a2 Bh3 f1N Bg4 f2 Bf3 c3 Bd2 c2 Nc3 c1R Bh6 Nd2 Qb3 f1N Qe6 Ne3 Nd1 Na6 b8Q Ne7 g8B N7d5 Qb7 Rc7 Nb2 Ng2 Bh5 Nc5 Qba6 Nh4 Nf3+ Kc3 d4 Bb7 Bg6 Bc6 Rhb1 h1N Ne5 Ndf3 b6 Nf2 Bc2 Nd1 Bb3 Qb8 Bg7 Bd6 Bf8 Kd2 Kg7 Ke1 Bf7 Kf2 d8Q Kf1 Qde8 Ng1 Nd7 Qa7 Nb8 Be7 Nd7 Rd8 Nb8 Rd6 Qac8 Qa5 Qa6 Nf6 d5 Rdd7 d6 Nd5 Rc1 Rd8 Rab1 a1Q d7 Bd6 Rc4 Be7 Ra4 Rg8+ Kh6 Rg3 Ra2 Rf3 Kg7 Rd3 Kg8 Bd6 Nc4 Qe5 Nb2 Ne4 Raa1 Ba3 Ra2 Ng3 Raa1 Rdc8 d8Q Ngf5 Qg5 Rd8 Qg3 Ng7 Qe1+ Kg2 Qd2 Bd6 Qb7 Kf1 Qc3 Qb4 Ra8 Qa5 Qa6 Ba3 Qe1+
1BR1K2Q/4n1P1/1r3q2/bNp3r1/b1Rq2B1/b1q4P/k1B1b1NQ/1b1NN1n1 b - - 0 1 illegal: No proof kernel
5r2/nQK2NPQ/2P4q/pbk2Qnq/B4r2/R5bn/1QBq1BN1/n1R4n b - - 0 1 illegal: No possible last move
B2b3N/2n2P1k/2NR2RR/r3Q2K/b5n1/2n1Q1Pp/q2bnrQ1/nRq3B1 b - - 0 1 illegal: No possible last move
7b/1Q3P1r/2nr3p/2Rn4/QB1q1n2/nK1PRn1Q/2BRN1R1/Nbkr2q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kd7 b4 Kd6 g4 a5 f5 Ke5 d6 Kf4 f6 c5 f7 e5 b6 h6 g5 e3 g6 c4 d7 e2 b7 e4 g7 a4 b5 c3 b6 a3 Qa4 a2 Qd4 c2 Qa4 h3 Qd4 h2 Qd5 Nf6 g8R Ra6 Qc6 Nd5 Ba3 c1N Rg2 Rh7 Bb4 Bg7 Qa4 Nc6 Na3 Bh8 Nc2 Qg5 d8Q Bf5 b8R Qf6 b7 Qd4 Rb1 a1Q Rb3 Rb6 Re3 Qb1 Kf2 e1N Qc8 Ncd3+ Ke2 Nf3 Na1 Qc1 Qd7 Qcc5 Kd1 Bg6 Ree2 e3 Rd8 Ke4 b8Q N3f4 Re8+ Kd3 Qbb7 Ra6 Rc8 Qb6 Ref2+ e2+ Kc1 Be4 Qh3 Bf5 Kb1 Qa7 Ka2 Bg6 Nb3 Kc2 Na1+ Kc1 Kb3 e1N Bd3 Nc2 Rc7 Na3 Bc2 Qab6 Re2 Qbc5 Re3 Rb6 Bd1 Bb1 d3 Nce5 Bc2 Rd6 Rc8 Qb6 Rc3 Nc6 Ne2+ Kd2 Rf1 h1R Rff2 Rd1 Ng3+ Kc1 Rd2 Qd8 Rc4 Qg5 Rc5 Qgg7 Re4 Qg1 Re3 Qd4 Ne2+
bb1RrRQ1/bRr2PR1/1p2B2K/bNb2Q1N/4q1P1/1qB5/Nn2n3/1n3k2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 a4 e5+ Kg3 Kf5 Kh4 Kf4 Kh5 b3 d4+ e3 g4 c4 a5 e4 a6 b2 g6 c3 f3 Kg3 g7 Kf2 d6 c2 d7 e2 d5 e1B f4 e3 f5 e2 f6 Qb6 d8N Nd7 d6 Ne7 g8R Qb3 f7 Ng6 a7 Nb6 d7 Nf4+ Kg5 h5 Qd2 h4 Qa5 h3 Rg6 h2 Nc3 b1N Rg7 Na4 Na2 Bc5 Nc6 Nb2 d8R Re8 Bd2 c1B Bc3 B1e3 Kh6 Bf5 Nd4 Rc8 a8Q Rc7 Bg2 Be4 Nb5 Bc6 Be4 Kf1 Bd5 Bg3 Be6 e1B Nh3+ Bg1 Qb8 Ne2 Nf4 Ba7 Nh5 b6 Nd4 Ba8 Qf5+ Kg2 Nb5 Bc5 Bd4 Ba5 Bc3 Bgd6 Rd1 Be5 R1d7 h1Q Qc8 Kg1 Qb8 Qe4 Qc8 Rc6 Re7 Beb8 Rb7 Re7 Rf8 Rcc7 Qe8 Kg2 Qd8 Re8 Qdg5 Nd2 Rd1 Nb1 Rd8 Kg1 Qgg6 Kg2 Qh7 Kg1 Qg8 Kg2 Qe5 Kf1 Qf5+
Kb1Q3R/B1rB1pb1/2n4Q/rP3N1N/3P1qR1/b1N2b2/1b3n2/q2RqN1k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 h4 Ke5 d4+ Ke4 b6 a5 h5 c5 e3 g5 h6 a4 b7 a3 d6 a2 b5 g3+ Kg2 g4 d7 c4 h7 c3 Ne2 c2 Ba3 c1B Qd2 Bg7 Rh4 Nc6 b8N Qg5 d8Q Nf6 Nd7 Ra5 Bc5 Bb7 Ba7 Ba3 Qc1 Re8 h8R Re7 Qd2 Qe5 Qc1 Qd6 Qd2 Qb4 Qc1 Qe1 Nbc3+ Kd3 Rb1 a1B e4 B1b2 e5 Ne4 e6 Nf2 Nf6 Rc7 e7 Ba8 e8N f3+ Kg1 g2 Nh5 Bb7 Qh6 Ba8 Kh2 g1B+ Kg3 Bb7 Kf4 g3 Kf5 g2 Rg4 Bh2 Nd6 g1Q Bh3 Bf4 Rd1+ Ke3 Rd2 Qa1 Rd1 Qe1 Neg3 Nh1 Nce2 Kf2 Nc3 Kg1 Nf1+ Bg3 Rf4 f2 Rg4 Qd2 Ke4 Qe1+ Kd5 Ba8 Ne3 f1Q Ndf5 Qf4 Nf1 Nf2 Rg5 Bc1 Rg4 Bab2 Kc5 Ba3+ Kb6 Bcb2 Bg2 Bb7 Bd5 Ba8 Be6 Kh1 Bc8 Nb4 Bd7 Bf3 Rd2 Nc6 Rd1 Rc8 Kb7 Rc7+ Ka8 Qfc1 N1e3 Rb7 Be8 Bb8 Nf1 Rc7 Bd7 Qcd2 Nh2 Qf4 Nf1
2RQ1KQ1/1B3pB1/4P2P/1nn1N1BN/qnbkN3/1B2b1br/2q5/1R1r2nn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Kf5 d5+ Ke5 g5 h4 a5 c4 g4 e4 f3 h6 f2 h5 g3 b6 g2 b7 a4 h7 d3 Ne2 g1N Nbc3 d4 Rb1 d2 Ng3 Na6 b8N d3 Nc6 Ne7 Kf6 a3 e5 a2 e6 a1B Ne5 Qd7 b4+ Kd4 b5 Nc5 b6 Bh6 b7 Qa4 b8Q Be3 Kg7 Ba6 Qg8 Rd8 Nce4 Nc6 Be2 Rd5 Kf8 f1N Rb8 Nb4 Rc8 Nb3 c5 Bc4 c6 Nc5 c7 Qc2 Qe1 d1N Qd2 Nc3 Bd1 Qa4 Bc2 Nb5 Bb3 Bc3 Qd1 Be1 Qd2 B3f2 Qg5 d2 Qd8 d1Q Bf4 Be3 Bg5 Qc2 h6 B1f2 Nh5 Ng3 Rh4 Nh1 Rf4 Bh4 Rf1 Bg3 Rb1 Rd7 Rb8 Rd5 c8B Rd6 Bb7 Rd5 Nd7 Rf5 Rc8 Rf2 Nef6 Rh2 Ne4 Rh3 Ne5+ Nd5 Kg7 Nd3 Qd7 Nc5 Qge8 Rf8 Qc7 Nb4 h8B Rg8+ Kf6 Rf8 Ke7 Rg8 Bg7 Rf8 Ra8 Rh8 Qeb8 Rd8 Qb6 Rd5 Qg8 Rd6 Rc8 Rd5 Nd6 Kc3 Kf8 Rd1 Qd8 Kd4 Ne4+
rr1q1QnQ/bR1bPRn1/2n5/4b1q1/B1P2p2/4nR1Q/k2N4/1n1N1RBK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kg2 Kd6 e4 Kc5 h4 Kb4 c4 d5 h6 a5 b3 f5 e5 g5 h5 a4 e6 d3 h7 d4 h6 a3 b6 a2 b7 g4 Be2 d2 Nf3 d3 Rf1 g3 Kh1 Bd7 Nc3 Bc5 e7 Nc6 b8R+ Bb6 Qe1 d1N Rb7 d2 Qf2 Ne3 Nd1 Rb8 Rb1 a1B Bd3 Bc3 Bc2 Be5 Qh2 Ra8 Qh3 Rb8 Rb2 Ka3 b4 Ba7 Rb3+ Ka2 b5 Ra8 b6 g2+ Kh2 Rb8 Bb2 Ra8 Bd4 Rb8 Rc3 Ra8 Ba4 Rb8 Nb2 d1N Nd2 f3+ Kg1 f4 Kh2 g1N Kh1 f2 Rd3 Nc3 Nd1 Nb1 Rb3 Ng4 Rf3 Ne2 Bc5 Ne3 Bd4 Nf6 Bc5 Rg8 h8R Ned4 Rh7 Ne6 Rf7 Ng7 h7 Rf8 h8Q Ng8 Rc7 Ra8 b7 Re8 b8Q Rf8 Rg1 f1Q Rb7 Qf2 Rf1 Qh4 Qd6 Qg5 Qdh6 Qa5 Bb6 Rfb8 Bd4 Qd8 Bc5 Ne6 Qf8 Ng7 Bd4 Nc2 Bf2 Ne3 Bg1
qrB2qb1/N1rkPQb1/2p3rq/6B1/K7/1n4Rq/2P1NqQ1/N1Q1RQn1 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 h5 Kc3 a5 Kb3 d5 g4 d4 f4 a4+ Kc4 c6 b4 e3 g5 d3 e6 e2 e7 e1Q f5 d2 g6 h3 g7 h4 b6 a3 Kb3 a2 b5 h2 f6 h3 f7+ Kd7 b7 Nh6 g8Q Nf5 b6 Ra7 Na3 Na6 b8Q Nh4 b7 Nf3 Ne2 Qf2 Qf4 Bg7 f8Q Ng1 Qf8f7 Qf8 Nb5 Nc5+ Kb4 Nb3 Bg2 Be5 Qf1 d1R Be3 Rd2 Re1 a1Q Bf3 Rd1 Qgg2 Rd6 Bg4+ Re6 Qh6 Bg7 Bg5 Rg8 Bf3 Rg6 Be4 Nf3 Rg1 h1Q Bd5 h2 Be4 Ra8 Na7 Rb8 Bd3 Rh8 Ba6 Qa5+ Kc4 Qad8 Kb4 Rg8 Ka4 Rh8 Qg3 Rg8 Rg2 Ng1 Qgf3 Qde8 Rg3 Qhg2 Qe4 Qh3 Qeg2 h1Q Bd3 Kc7 Bf5 Be6 Bg4 Rc8 b8N Q1h2 Na6+ Kd7 Bf5 Rc7 Bg4 Qa8 Nc5+ Kd6 Bf5 Bc4 Bc8 Rh8 Qe8 Bg8 Qf7 Qh1 Bf6 Q1h2 Qc1 Qh6 Bg5 Q2h3 Bb7 Nd2 Nb3 Kd7 Na1 Nb3 Ba6 Qfc8 Bc4 Bh7 Be3 Rf8 Ba6 Bg8 Bg5 Qe8 Qc4 Qef7 Q4f4 Rb8 Qff3 Qe8 Qf7 Qf8 Bc8+
1b1K3Q/3P1r1R/1B2NQ2/3kn1q1/b1N1NnR1/6p1/qq1QrP1b/bB3Q1b b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 b5 Ke4 c5 Ke5 g5 a4 c4 d4 c3 h4 c2 f6 g3 a5 b3 d6 g4 a6 b2 a7 g2 d5 g3 d7 b4 h5 b3 h6 Rh7 d6 Bb7 Rh4 Nc6+ Kf5 e5 Rf4 e4 Nh3 g1B Bd2 c1Q Kg5 Ke6 Na3 b1B Nc4 b2 Bd3 e3 Rg4 e2 Be3 e1B Qd2 Rf7 h7 Bh2 h8Q Kd5 Bb6 Nge7 Ra2 Rb8 a8Q Ne5 Qa6 N7g6 Ra1 Qe7 d8N Bc2 d7 b1Q Ne6 Qcb2 Kf5 Qd8 Nhg5 Nf4 Ne4 Q1a2 Kg5 Ba4 Bb1+ Qd4 Kf5 Bd6 Kg5 Ra8 Kf5 Bb8 Kg5 Re7 f7 Ra7 f8Q Rf7+ Qf6 Qe7 Qh8 Qd8 Qe2 Qdb2 Qf1 Bb4 Qa5+ Bc5 Qd2+ Bd4 Rh4 Ra5 Rh6 Rb5 Rh7 Rb3 Kf5 Re3 Kg5 Re2 Kf5 Qab3 Ra3 Q3a2 Rf3 Nh5 Rf4 Qe7 Rg4 Nf4 Kg5 Bg1 Ned6 Qc1 Kf5 Bh2 Nc5 Rf8 Qf7+ Kc6 Ne6 Ba1 Rh3 Qcb2 Rh7 Rg8 Qg6 Rg7 Qf7 Qh4 Qe7 Qh5+ Kf6 Ba8 Qf7 Qg6+ Ke7 Qg5+ Ke8 Bb7 Qf6 Re7+ Kd8 Rf7 Nf8 Ba8 Bc7 Kc5 Ba5 Bf3 Bb6+ Kc6 Ne6 Bh1 Qc3 Kd5 Ne4 Ned3 Qb4 Ne5 Qd2+
1q6/BbNP1r2/3NbP1b/br1Q3R/1nK2Bq1/Rp2b2n/1RBR2n1/2Q1k3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 f4 c5 g4 h5 a4 e5 a5 b5 d6 c4+ Kc2 h3 d4 h2 d7 h4 a6 b3+ Kc3 b4+ Kb2 h3 a7 e4 d5 e3 d6 e2 Bg2 e1B Na3 Nc6 Qc2 Rb8 a8Q Nge7 Bf3 Nd5 Nb5 Ne3 Ra3 Bh6 Bd1 Ng2 Ne2 Rf8 Nc7 Rf7 Ng3 Qg8 d8R Rb5 d7 Bb7 Rb8 Qg5 Bd2 Qh4 Qc1 c3+ Kb1 b2 Ka2 b1B+ Kb3 c2 Kc4 Qg5 Be3 Qh5 Ba7 Ba2+ Kd3 Be6 g5+ Ke7 f6+ Kd6 f5 Ke5 g6 Qg4 g7 b3 g8R Bed2 Rbe8 Ba5 Ne4 Nb4+ Kc3 Be3 Nd6 Kf4 Rg5 Kg3 Rh5 Kf2 Reh8 Ba6 Qd5 Bb7 Re1 h1N Re2+ Kf1 Rd2 h2 R8h6 Nf2 Rg6 Re7 f7 h1Q f8B Ke1 f6 Qh2 Bh6 Nh3 Bf4 Rf7 Kc4 Qhg3 Qa1 c1B Rb2 Bcd2 Qc1 Qf5 Rgh6 Qg8 Rg6 Qb8 Rg3 Qg6 Rf3 Qg4 Rf2 Bc3 Rfd2 Bcd4 Be5 Bh6 Bf4 Be3 Bc2+
rRBNK1k1/2Bpb2q/Q2r3R/2Rb2n1/1n1R3N/2n3qQ/1r1PPQ2/4rr2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 f5 Kf3 Kf7 g4 h5 c4 a5 b6 a4 c6 h3 c5 h2 c7 a3 b7 a2 c6 h4 g5 h3 g6+ Kg7 Na3 Na6 b8R Qg5 Nc2 Ba3 Qe1 Nf6 Nd4 Rh6 Bb2 Ne4 Ne6+ Kg8 g7 Be7 Be5 Nb4 Bg2 Nc3 Nd8 Rd6 Qf2 Bb7 c8R Qg6 Rb1 a1R Rb2 Re1 Rb3 Ba6 c7 Bc4 Ra3 Ba2 Ra5 Rb1 Rd5 Rb2 Rd4 Be6 Rb5 Bc4 Rcb8 Qh7 c8Q Be6 Qh4 Bb3 Qa6 Bd5+ Kf2 f3 Kg3 f4+ Kg4 f2 Rc5 f1R Qf2 Rfb1 Nf3 Re1 Nh4 f3 Bg3 Qd3 Kf4 Qh7 Ke5 Qg6 Bf4 Qg3 Kf5 Rb6 Bc7 Rd6 Qf1 f2 Qg1 f1R+ Qf2 Bb3 Bb7 Bc4 Bc8 Bd5 Rg1 h1Q Rg2 Qgh2 Rg6 Qg3 Rh6 h2 Re6 Qe3 Ng2 Kh7 Rg6 Qd3+ Ke5 Qg1 Nh4 h1N Re6 Ng3 Rf6 Qg6 g8Q+ Kh6 Qe6 Kh7 Qef5 Nge4 Qh3 Kg8 Re6 Qh7 Rh6 Ng5 Ng2 Bf8 Nh4 Ne6 Kf6 Qg4 Ng2 Qg3 Nh4 Ng5+ Ne6 Bg7+ Ke7 Bf8+ Ke8 Be7 Nd8
kR1q2Q1/1RPr1N1R/N5r1/1B1R2n1/1rqb2r1/2pBQ2r/2P1bK1Q/qn6 b - - 0 1 illegal: No possible last move, all moves rejected
3b2b1/2P1Q1bb/1q4NQ/3r2PN/bRBr1Bp1/5r2/q1R1R2K/1n1nk1BR b - - 0 1 illegal: No possible last move, all moves rejected
1K1NR1r1/1NP2Q2/k1bN4/1B1bP1Nb/p1n3n1/b3q1rR/q1b3Q1/1nBQ4 b - - 0 1 illegal: No possible last move
kb6/2P3bN/bNRrq1q1/n1P2BBR/2q2b2/1r2b2N/1RQN2p1/3QK2n b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 f4 g5 h4 e5 c4 a5 b4 d5 c6 d4 b6 d3 c5 e3 b5 g3 f5 g2 f6 e4 h5 a4 b7 e2 h6 d2+ Kf2 e1B+ Ke2 a3 h7 g4 b6 a2 Qa4 d1Q+ Ke3 g3 Qc2 Q8d5 f7+ Kd8 Bb5 Qg4 Ba3 Bg7 f8N Qg6 Ke2 e3 Rh2 Nf6 Rh1 Ng4 Ba4 Ra6 Qd1 Nf2 Bc2 Bd2 Bb4 Qc4+ Bd3 Ra3 Rh3 Rb3 Rh5 Nh1 Nh3 g1B Ba5 Bc1 Ke1 g2 Bd2 e2 Bf5 Be3 Qc2 Rg8 h8Q Be5 Qh6 Rh8 Qg7 Rh6 Nh7 B5f4 Qf7 Bb2 Bc1 Bg7 Nd2 Bge5 Rb1 a1B Qd5+ Bd6 Qdd3 Bg7 Ra1 Nd7 b8R Ne5 b7 Kc7 Rba8 Qe8 b8N Ba6 Nd7 Qg6 Ra7+ Kc8 Rb7 Bb8 c7 Nc6 Rb5 Na5 Nb6+ Kb7 Ra2 Ka7 Rb2 Kb7 Nd7+ Ka8 Rb6 Qc6 Qd1 Rd6 Q3c2 Q6e4 Rc6 Qe8 Ra2 Qg6 Rb2 Bed4 Nf3 Bfe5 Bg5 Bg3+ Kd2 e1Q+ Kc1 Qee6 Kd2 B3e5 Ke1 Be3 Nd2 B5f4 Nb6+
3B2r1/2p3bK/4nB1b/q1kn2rb/RP1R1Q1B/NQb2bP1/2R1Bq1n/3N4 b - - 0 1 illegal: No possible last move
3n2RK/n1p1b2N/k4PBr/4Q2R/1bP3nq/1B1rQ1B1/n3b1Nq/Qn2Q3 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 h5 Ke3 a5 Kd4 d5 g4 Kd7 b4 h3 f4 a4 b6 Kc6 b5+ Kb7 f5 h2 e6 h4 Ke5 a3 e7 e3 e8Q d4 g5 h3 g6 d3 g7 d2 Ne2 a2 Qe1 d1N Nd2 Ba3 Nf3 Ne7 Kf6 Nbc6 g8B Rh6+ Kg7 Nc3 Nf4 e2 Ng5 Na7 Nh7 Nec6 Ng2 Qh4 f6 Be7 Bf4 Nd8 Bg3 Nb1 Kh8 Bg4 Bb3 Bh5 Rg1 h1N c4 Nf2 Rh1 h2 Rg1 Bc5 Qe3 h1Q Qe5 Be7 Qe3 Kb8 b7 Q1h2 Qe5 Ng4 Qe3 Na3 Rd1 a1N Rd5 N1c2 Rg5 Bf7 Rh5 Nb4 Qa1 e1B Bd3 Na2 Bg6 B1b4 Qee1 Nc8 Qae5 Ka7 b6+ Ka6 b8Q Be6 b7 Na7 Qc8 Nb1 b8Q+ Nb7 Qg8 Nd8 Qe8 Bd5 Q5e3 Bf3 Qe5 Be2 Qa1 Bed6 Qee5 Be7 Qc8+ Kb6 Qcf5 Ka6 Qff4 Rb8 Qfe3 Rb5 Rf1 Rd5 Rff5 Rd3 Rfg5 Rd7 Be4 Rd5 Rg8 Rd3 Bg6
1R2N1b1/1rpB1Pbq/Nq1k3R/PB5n/Q5N1/1Qnq1N2/6nq/K1B3qr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 a4 b5 d4 h5 Kd2 e5 Kc2 e4 Kb2 h3 g4 e3 d6 e2 g5 e1N d5 b3 a5 h2 g6 h4 f6 h3 f7 b4 g7 Rh7 f5 Qe8 f6 Rh4 Bb5+ Nc6 Nc3 Qe6 Nf3 Ra7 Na2 Ng2 Rb1 Rb7 Ka1 Qe4 Qc2 Qd3 Qb2 Rh5 Qa3 Rh8 Qa4 Qh7 Re1 h1Q Re6 h2 Rb2 Nh6 g8B Nf5 Rb1 Bg7 f8N+ Kd8 d7 Qg1 Bf7 h1Q Be8 Ncd4 f7 Ng3 Rg6 Ke7 d8N Qh1h2 Bed7 Nh5 Rh6 Ne2+ Rb2 Qd3 Nh7 Nc3 Nf6 Kd6 Nc6 Qb6 Nce5 Qbg1 Be8 Bf5 Neg4 Bh7 Bec6 Bg8 Bd7 Kc5 d6 Qh7 Be8 Qd3 d7 Kd6 d8Q+ Ke6 Qd5+ Ke7 Nd2 Rb6 Bec6 Qdg3 Nb1 Nhf4 Rh4 Qhh1 Qc4 Kd6 Ba6 Qgh3 Re2 Rb8 Re7 Rb7 Qcb5 Qhe3 Nd2 Qb6 Rh7 Qh5 Re8 Qe5 Rh6 Rh7 Rg6 Rh1 Qe2 Qh5 Qc4 Qhh2 Nf3 Nh5 Bd7 Ne2 Rb8 b2+ Kb1 Nc3+ Kc2 Ne4 Rh6 Nc3 Bab5 b1Q+ Kd2 b3 Nb4 b2 Qcb3 Qh7 Na6 Ne4+ Kd3 b1Q+ Kc4 Nc5 Kc3 Qbd3+ Kb2 Ne4 Ka1 Nc3 Ne8+
2rN1b1B/1P5k/2B1r2q/RqNQ4/Q1b2q2/r1N2n1R/B3P1pB/K2n1rr1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 f5 h4 Kf7 b4 a5 c4 d5 Kc2 g5 Kb2 Kg7 h6+ Kh7 b6 g4 c5 f3 b5 f4 b7 d3 b6 d2 h5 f2 c6 g3 c7 f3 Ra2 a4 Bg2 f1Q Qb3 d1Q Rh2 a3+ Ka1 d4 Rh3 f2 Rh2 d3 Qb5 d2 Qa4 Qd7 Nh3 Qb5 Bc6 g2 Nf4 Nf6 Nc3 Ng4 Ne6 Ne3 Nc5 Nd7 b8N Ra6 b7 Ne5 Rh3 Be6 c8B Bc4 Be6 Qde1 Bf7 d1R Be6 Rd6 Bf7 Nd1 Bf4 Rg8 Bh2 Qd2 Be6 Nf3 Bf7 Kh8 h7 Qh6 Bfd5 Kg7 h8B+ Kh7 Bf7 Rd8 Bfd5 Rg6 Bf7 Rc8 Bfd5 Qf4 h6 Qh1 Bf7 Re6 Bg8+ Kg6 h7 f1R Bf6 Re1 h8Q Rf1 Bd4 Rg1 Qe5 Ra5 Qd5 Ra7 Rb2 a2 Bh8 Ra6 Bd7 Ra7 Nc6 Rf1 Nd8 Raa8 Qb3 Ra3 Bc6 Rg1 Qa4 Rf1 Bg3 Qh2 Rb3 Qh6 Bf7+ Kh7 Rh5 Qh4 Bh2 Qf4 Rh3 Qa6 Rb6 Qb5 Ra6 Rg1 Bg6+ Kg8 Bb1 Ne3 Nd3 Kh7 Ra5 Qa6 Kb2 a1R Ba2 Raf1 Nc5 Nd1+ Kb1 Qb5+ Ka1
1K3Bb1/1P3q2/4bq2/b2N3k/qNBpRrr1/1R1NP3/2Q1qR1n/3Rn1Qq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 Kf3 f5 b4 Kf7 h4 d5 c4 a5 h6 Kg6 c5 d3 e3 d2 c6 d4 h7 a4 b6 a3 b7 a2 c7 Qf6 b5 Bb4 b6 Nd7 b8N Ba5 b7 Nc5 Ba6 Nh6 Ba3 Nd3 Bf8 Be6 c8Q Ng4 Nh3 Kh5 Qcc2 Rg8 Nc6 Rb8 Qg1 d1B+ Qe2 Rc8 Bc4 Bb3 Nf2 Rg6 Nc3 Nh2+ Kg2+ f3+ Kg3 g4 Rd1 a1Q Nb4 Rg8 Ncd5 Qa4 Qc2 Ne1 Kf4 g3 Nfd3 g2 Rb1 Qf7 Ke5 f2 Kd6 f1Q Rb2 f4 h8R+ Kg6 Rb1 f3 h5+ Kg5 h6 f2 h7 Qe2 Rd1 f1Q Rb1 Ba2 Rb3 Rg6 Rg8 Q1f6 h8R Rc5 Rh3 Rb5 Rf3 Kh5 Rg7 Rg4 Rf2 Rf4 Rg4 Rc5 Qf1 g1Q Qg2 Qgf1 Qg1 Qg2 Nc3 Rg5 Ncd5 Rff5 Rgf4 Rg4 Re4 Rff4 Nb6 Qfe8 Kc7 Qef7+ Kb8 Qh3 N6d5 Qhf3 Qg3 Qg2 Rhf1 Qh1 Qg1 Qfd7 Nb6 Nef3 Rc3 Bd5 Bb3 Bg8 Rd1 Qdf7 Bd5 Bc4 Rb3 Ne1 Be6 Bb5 Bc4 Bd7 N6d5 Bc8 Qb2 Be6 Qc2
1Nq1bq2/KPb5/PRrQ3B/2kp4/q2r4/5nbn/q1N2QQ1/1qQ1BBR1 b - - 0 1 illegal: No proof kernel
1QR1bQb1/1p2NBqk/6PN/1bP5/r4bKn/2qQQR2/b2n4/N3Br1q b - - 0 1 illegal: No possible last move, all moves rejected
2r1Q1q1/1prB2r1/3P1qnN/3R2Nn/1b1RK1QB/2r2Q2/br2Pk1N/3Qb3 b - - 0 1 illegal: No possible last move
1N6/2Q4B/rB2RrQr/3R3n/P3k2r/brrnqp1N/2P2Bb1/K1Q1Q1r1 b - - 0 1 illegal: No possible last move
2R2B1q/1R1b3B/1R1rq3/K3b1B1/1r3b1n/nbN1nkrP/NPQ1p3/Q3B3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 c4 Kf6 f4 e5 b6 a5 c5 g5 b7 d5 c6 a4 c7 a3 h3 e4 Qe2 d3 Kc3 d2 Qg2 d1N+ Kb3 e3 Ra2 g3 Ba6 e2 Ka4 g4 Ka5 d4 Rh2 d3 Nc3 d2 Qf3 g2 Ra1 a2 Qe4 g3 Qa4 Rh6 Rh1 Nc6+ Kb5 Ne5 b8R Bg7 Qc2 Ne3 Rb7 d1B Ka5 Ne7 Nf3 g1R Nd2 g2 Nb3 Rb8 Bd3 Qh8 Rb6+ Be6 c8Q N7g6 Qa6 Nh4 Bd2 Rg6 Be1 Rb7 Nc1 N5c4+ Ka4 Na3 Ka5 Rg3 Qa7 Rf1 Be4 g1B Qa8 Kf7 f6 Bh2 Bh7 Bd7 f5 Bh6 Rg1 Bf4 Rb1 a1Q N1a2 Be5 Rc1 Rf4 Rf1 Rd4 Rf4 Rd6 Rfb4 Rb8 Rb7 Bf4 R4b6 Be5 Qb1 Bb3 Qc2 Rg2 Qa6 Bhf4 Qa7 Rg3 Qa6 Kf8 f7 Kg7 f6+ Kh6 f8B+ Kg5 f7 Qb1 Bg7 Qa1 f8B Qb1 Qd1 Qe4 Qad3 Qc4 Qb1 Qe6 Qa1 Rc8 Rc2 Rc4 Qdc1 Rb4 Bf6+ Kh5 Bg8 Kg6 Bg5 Kf5 Bh7+ Ng6 Na4 Ke4 Rc8 Kf3 Qc2 Nh4 N4c3
2k1B1B1/8/1b2K3/4nB2/N4bRq/P1rPp2R/QrN2rb1/qnBbR1nQ b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 c5 Kf4 h5 Kf5 e5 g4 b5 f4 h4 d6 c4 d3 e3 a3 e2 g6 e1Q g7 c3 g5 h3 g6 b3 Qh5 b4 Qh4 b2 Nd2 b1N Qh6 h2 Ndf3 b3 Nh3 b2 Qh5 c2 Nhg1 e4 Nd4 Nc6 Nge2 Ne5 Bh3 Nf3 Nc3 Nf6 g8B Ng1 g7 Ng4 Na4 Qdh4 Bf7 Ne5 g8B Ra5 Qh7 Rc5 Be8+ Kd8+ d7 Rc3 Qf7 Bc5 Qa2 Bb6 Ke6 Rh5 Bg4 Rf5 Bh3 Rf7 f5 Bb7 f6 Rf8 Bd2 c1B f7 Bc6 Bh6 Bf4 Nc2 Kc7 d8R e3 Bf5 Bg2 Bg7 Bf3 Rd4 Kc8 Re4 Qc1 Bh8 Bd1 Rd4 Bg3 Rg4 Bf4 Bg7 Ngf3 Re1 h1B Bf6 Bg2 Rh1 Nbd2 Rh3 b1R Bg7 Rb2 Rb1 Be2 Ra1 Qh1 Re1 Bd1 Bh8 Ng1 Bf6 Rc5 Bg7 Nb1 Bh8 Ng6 Bc3 Rc4 Bd2 Rc3 Bc1 Ne5 Bb5 Rd8 Be8 Rd4 f8Q Rdb4 Na1 Rf2 Nc2 Rb2 Qh6 Qh5 Nd4 Bdf3 Re2 Nd2 Rhh4 Nh3 Nc2 Qf1 Qh7 Ng1 Rh1 Qd1 Re1 Qg5 Qh3 Qh4 Rh2 Rb4 Bb2 Qa1 Rh1 Nb1 Bc1 Rb2 Rh2 Bd1 Qf3 Bh3 Qh1 Bg2 Rh3
1b2b3/1N1b1R2/3rQ1rn/1qR1nBQ1/3BQ1NP/2K2n1k/pQ1r1P1b/B5q1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 c4 Kf6 h4 a5 b4 d5 b6 e5 c5 g5 b5 e4 b7 a4 b6 a3 c6 a2 c7 g3 Nh3 e3+ Kc2 d3+ Kb3 g4 Qc2 g2 Na3 g1B Bg2 g3 Kc3 d2 Qe4 d1B Rb1 e2 Ng5 e1N Bb2 Nc6 b8Q Bh2 b7 Bd6 Nf7 Bd7 c8Q Ne5 Nc2 Qb6 Bh3 g2 Nd8 g1Q Ba1 Qb5 Ne3 Rh6 Qa7 Bf3 b8Q Rg6 Nb7 Bh5 Qac5 N1f3 Rb4 Ra6 Ng4+ Kf7 f6 Ke6 f7 Nh6 f8B d4+ Kb3 d3 Kc3 d2 Bg7 d1R Qce3 Qb6 Qg5 Rd2 Rc4 Qb5 Rc5 Bc7 Bf6 Rad6 Bh8 Qg2 Rb1 Qg1 Rb4 Rg8 Ra4 Be8 Ra7 Rg6 Qb1 Nef7 Bd4 N7e5 Qa8 Bb8 Qb2 Bf7 Qe7+ Kf5 Qg5+ Ke4 Qg8 Bfe8 Qe6 Ne1 Bf1 Kf3 Bd3 Kg2 Bf5 Kh3 Na5 N5f3 Qae4 Nd3 Rac7 Nde5 Nb7 Bc6 Rh7 Bcd7 Rf7
1N3R1r/1n1B4/1bKbq1b1/6n1/3BR2P/QP3pBq/kqNQn3/1R2R1rq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 h4 Kd6 e4 Kc5 d4+ Kb4 b6 f5 b7 g5 b3 c5 e5 a5 d6 c4 d5 a4 e6 f3 Ke3 a3 Kd4 f4 d7 g3 d6 a2 Kd5 g2 e7 c3 e8Q f2 Ne2 g1B Bd2 g4 Qg6 f3 Bc1 c2 Qe8 g3 Bg2 f1Q Qe6 Qb6 d8R Na6 b8B Nc5 d7 Nh6 Na3 Nb7 Bc7 Nf7 Bh3 g2 Bb2 c1N Rb1 a1Q Bd4 Qb2 Bg3 Bd6 Qe7 Ng5 Re8 Ra7 d8R Bf5 Rb8 Bg6 Bd7 Bf2 Rf8 g1Q Rbe8 Qh3 Qc2 Qgh2 Re1 Qh1 Qd3 Ra8 Qde3 Rc8 Qd2+ Rc3 Qd8 Be3 Re4 Bg1 Qa8 Be3 Nf4 Ne2 Ne6 Bf2 Nc5 Bg1 Qe3 Rc1 Qd3 Qa6 Qc2 Qc4+ Kc6 Qce6 Na6+ Ka5 Bf6 Bb6 Bd4 Rd1 Nb8+ Kb4 Nc4 Rc1 Ne3 Rd1 Na6+ Ka3 Qd2 Rc1+ Nc2+ Ka2 Qa7 Bd8 Qc5 Bb6 Nb8 Nf4 R1e3 Rg1 Ree1 Ne2 Qa3+
KN3N2/1r4Rn/bb1Qq1Rk/3B4/1q4pr/P2nbr1Q/NPN4n/1B1rB3 b - - 0 1 illegal: No proof kernel
K4brR/6bN/brQ1q2R/3n1Q1q/kRn1np1P/4B1PB/3N3B/2B3qq b - - 0 1 illegal: No proof kernel
1n1qb1N1/4BbBN/1bQRr3/1BRq4/B1Rp1k2/b2rQ2K/2n1P2P/4q2n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kg2 Kf6 b4 Kf5 c4 a5 h6 g5 h7 d5 c5 g4 b6 a4 b5 g3 b7 d3 b6 d2 c6 a3 c7 f3+ Kh3 g2 Qe1 d1Q Bh6 a2 Nd2 f2 Bg7 Bd7 c8B Ra6 Ngf3 g1B Ng5 Ne7 Bg2 f1Q Rc1 a1N Rc4 Nc2 Nde4 f6 Qg3 Qfe1 Qe3 Rg8 h8B Ra3 Rc5 Rd3 Nh7 Be6 Bd7 Bf2 Bc6 Bf7 Be8 Ke5 Rg1 Nf5 Bb5 Ng3 Bf3 Nh1 Rg6 Bd6 Bf8 Bg1 Be7 Re8 Bg7 Bf2 Qd4+ Kf4 Qa1 f5 Nef6 Qdd2 Ng8 Bd4 Rc4 Ba3 Rc5 Be3 Qf6 Qa5 Qc6 Qa8 Rd6 Bg1 Bef6 Re6 Be7 Be3 Rc3 Bec5 Rc4+ d4 Ba4 Ke3 Bg2 f4 Be4 f3 Bg6 Nd7 b8R f2 b7 Bb6 Rc8 Nb8 Be4 f1B+ Bg2 Nd7 b8Q Qaa5 Qbb7 Nb8 Qa6 Qd5 Qab5 Ng3 Qb1 Kf4 Qc1+ Kf5 Qe3 Be8 Qg1 Kf4 Qb5 Bf7 R8c5 Be8 Qc6 Bf7 Kh4 Be8 Be4 Bg2 Bg6 Bf3 Kh3 Bh5 Bf5 Bhf7 Bg4 Ree3 Bc8 Re5 Ba6 Re6 B6b5 Nh1+ Qe3+
N3Q3/1br3r1/1Q1bqR2/2Nq1r2/BBpPqQRq/8/RPQKn3/1kn4b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Ke7 d4 Kf6 g4 a5 b6 h5 d6 c5 b7 c4 d7 a4 Bd2 f3 Nh3 a3 Qc1 a2 Ng1 f2+ Kd1 h3 Bg2 f1Q+ Be1 h2 Bf3 h4 Nd2 h3 Kc2 Qg2 Ne2 Nc6 b8Q Bb7 Qb1 Rh7 Nb3 Rg7 Qc1 Bd6 Qb1 Nh6 Ba5 Ra7 Nd2 Nb4+ Kc1 Nf5 Qc2 Ng3 Rf1 h1B Nc3 h2 Nb3 Ne2+ Kd2 Nd3 Nb5 Ndc1 g5+ Kg6 e5+ f5 Bc6 Qe4 e6 f4 e7 Kf5 e8Q f3 g6 f2 Bb4 Qh4 d8Q Rc7 Rd1 f1R g7 Kf4 g8R Qe6 Rb1 a1Q Nc5 Qa5 Ra1 Rf2 Rf1 Rf3 Kd1 Ke3 Ra2 Rf5 Rg4 Rg7 Nc7 Qb5 N5a6 Qd5 Na8 Qde4 Qb6 Q4d5 Qa4 Kd3 Bd7 Rfg5 Rf6 Rf5 Qab5 Qde4 Qe5 Q4d5 Qf4 Qde4 Qf2 Q4d5 Ke1 Kc2 Nc5 Kb1 Kd2 Be4 Qb8d8 h1Q Qe1 Bc2 Ba4 Bc8 Rf8 Be4 Qg5 Rac7 Qd1 Bb7 Rf6 Qf3 Qe3 Qf4 Qb3 Bh1 Qc3 Qfe5 Qf4 Qee4 Qc2+
n2b3N/K4nr1/Q7/BR3q1p/qrB1qNB1/1QPP2B1/1rb2Rn1/1r1Q2k1 b - - 0 1 illegal: No proof kernel
2Br3Q/5bn1/b2q1bnR/1R3PQ1/R3k2q/1RPq1Nn1/1pnrNK2/4B1Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Kf7 f4 Kf6 h4 e5 h6 g5 h7 b5 c3 d5 a5 d3 h5 g4 h6 b3 a6 b4 a7 b2 Qf3 g3 Bg2 d2+ Kf1 d1B Nh3 d4 Qe3 d3 Qe1 d2 Be4 g2+ Kf2 g1N Kf1 b3 Bb7 e4 Ra3 e3 Rh2 e2+ Kf2 Nd7 Bg2 Be7 Bc6 Ba6 Bb7 Ne5 Bc8 Ng6 Qf1 Rb8 a8R e1N Rh1 Ne2 Ng1 Ng3 Rh5 Rb7 Ne2 Rd7 Qg1 Nc2 Rb8 Rd4 Ra4 Qd6 Rbb4 Bd8 Rb5 N8e7 Rg5 Rg8 h8R Rd5 h7 Rd3 Nd4 Bh5 Ne2 d1Q Nd2 b1Q Nf3 b2 Rb3 Rd4 Be3 Qd3 Bd2 Qc4 Be1 Rd2 Rg4 Qcd3 Ra5 Qa2 Rab5 Qa4 Rh4 Nd5 Rg4 Nc7 Rh4 Ne8 Rg4 Kf7 f6 Ng7 f5 Qaf4 Rh4 Qg5 Rhb4 Be7 Ra4 Rd8 Re8 Qh4 h8Q Bf8 Ree5 Be7 Qh6 Kf8 f7 Bf6 Rec5 Ke7 Rcc4 Qa3 Re4+ Kd6 f8Q+ Kc6 Qg5 Qad6 R5b4 Kd5 Re6 Ne7 Rb7 Bf7 Qh8 Ng6 Ra2 Be5 R7b5+ Ke4 Rf6 Ne7 Rg6 Bf6 Rh6 Ng6 Ra4+
1Qrnk1B1/n1b1bN2/2QNq1R1/5P1K/R2qb2b/1p1r1P2/7N/NnBr2R1 b - - 0 1 illegal: No possible last move
3b2B1/RN1KB3/1rnNB1n1/q2N1pB1/k2RbQ1b/4q2Q/1P1P3b/2q2n1r b - - 0 1 illegal: No proof kernel forced: bxDB
R1n2K2/Q1qr1n2/4B1k1/q1Qp1n1r/r1qbRBR1/1R6/4PPNr/1B1bN3 b - - 0 1 illegal: No proof kernel
n7/1NbQ4/N2brRK1/1kPB3R/Nr1n4/8/rpn1PbBB/1b1qqBQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 h4 d5 c4 Kd7 e6+ Kc6 Kd2 b5 Ke3 f5 Kf4 g3 a4 d4 e7 d3 Kg5 f4 h5 d2 a5 g2 a6 f3 a7 b3 h6 f2 h7 b4 Nf3 g1B Bh3 f1N Nc3 Bh2 Be6 Nh6 Bg8 Nd7 Nh4 Nb6 Ra6 Bc7 Nf5 Ne3 Nd6 Bf5 Rh5 Bc2 Nb7 Nhf5 Ra4 g6 Qg1 d1R Ra6 Rd4 Na4 Rh4 Nb2 Qd6 Bd2 Rf4 Be1 Qd1 Bg3 Qe1 Bh2 Re8 Kf6 g5 Qg2+ Be4 Kg6 g4 Bf7 g3 Bd5+ Kd7 Qf1 g2 Qh1 g1B a8N Bf2 Qg1 Bd8 Nc7 Rg8+ Kf7 Rg3 Na4 Bc2 Bg2 Na8 Bf1 Rfg4 Rf6 Be4 Na6 Bc7 h8Q Rf3 Qh6 Bd3 Nd6 Kc6 Qg7 Re4 Kg6 Rb8 Kh7 Nd4 Kg6 Rb5 Nb7+ Re6+ Kh6 b2 Bg2 b1Q Bf1 b3 Kg5 Nef5 Kg6 Qbd1 Qh7 Kd7 e8B+ Kc8 Bg2 b2 Bc6 Rh3 Bcd5 Rb4 Qg7 Bb1 Rh8 Re7 Rh5 Nc2 Bf1 Nfd4 c6 Bd8 c5 Re6 c7 Ra3 Bf4 Bd6 Bh2 Ra2 Kf7 Kd7 Bdg2 Re4 c8B+ Kc6 Kg6 Bc7 Be6 Kb5 Bd5 Re6 Qd7+
1QbK1Nn1/1qnnN1N1/3k4/1rP1N3/B3b1B1/n1Q1brP1/2p1q1r1/R2R2B1 b - - 0 1 illegal: No possible last move, all moves rejected
N5QK/R1bN3b/rnB1RQ2/1P3rr1/1B1q1P2/7B/kb1b1qnp/n1Q3Q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc3 Kc5 f4 a5 g4 h5 d6 a4 g5 h3 d3 h2 g6 h4 d7 e3 b6 h3 b7 a3 g7 e2 b3 e1B+ Nd2 e4 Bb2 e3 Qc1 e2 Nf3 a2 Ne5 Nf6 g8B Ra6 Bd5 Rh5 Bc6 Rg5 Bfg2 Bd6 b4+ Kb6 Kd4 Ng4 b5 Ka5 Bf1 Ka4 Ba3 Ne3 Bb4 Ng2 Ndc4 Kb3 Nb6 Bd2 Na8 e1Q Kd5 Rf5 Ke6 Qf2 d4 Qh8 Rg1 h1R d5 Rg5 Kf7 h2 d8Q Bf5 Nb6 Nd7 b8Q Bh7 Na8 Nb6 Nd7 Qhd4 Qa7 Rf5+ Qf6 Be5 Kg7 Bd6 Bb7 c5 Bc6 c4 Kh8 Bc7 d6 c3 Nb8 c2 d7 Nh4 Rg6 Rg1 d8Q Rgg5 Bh3 Ng2 Rh6 Qf1 Nd7 Qff2 Qh1 c1B Qg8+ Qd5 Rg6 Bb2 Qc1 Qc4 Qe5 Qd5 Re6 Qdd4 Qf6 Nc4 Rb1 a1N Qc5 Nb6 Qg1 Ka2 Qcc1 Bbc3 Rb3 Bb2 Rg3 Rh5 Rg7 Rhg5 Ne5 Bd6 Ra7 Bc7 Nd7
2n5/BQ5q/b2b4/1PqNR3/RQPNB2r/2n1Kb2/Q1N1pn2/2Nrkbq1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 d5 b4 e5 c4 h5 b6 a5 b7 e4 b5 h3 Qb3 e3+ Ke2 a4 Bd2 a3 Qd1 h4 Kf3 h2 Ne2 d3 Bg2 d4 Qc1 a2 Nbc3 h3 Qf1 Rh4 Ng3 Nc6 b8N Nh6 Bc1 d2 Qe2 d1N Re1 h1Q Na6 d3 Nb4 d2 Nc2 h2 Ba3 Ne7 Bc5 Qa5 Ba7 Qb4 Qf2 Rb8 Nge2 Ba6 Nc1 Rd8 Ke4 Nc8 g5+ Kg7 f6+ Kg6 f7 Kh5 g6 Kg4 g7 Bd6 f8N Qc5 Nd5 Nc3+ Kd3 d1B f5 Bf3 f6 Qg1 f7 h1B Qe2 Kg3 g8Q+ Ng4 Ne6 Qh2 f8Q Qh3 Rb1 a1Q Qgg7 Qh2 Rb3 Qg1 Qgf7 Qb1 Qb7 Rd7 Qd2 e2 Nd4 Nf2+ Ke3 Rd8 Ra3 Rd7 Ra4 Rd8 Rd1 Rd7 Na3 Qh7 Qa2 Rd8 Nc2 Rd7 Bh3 Bhg2 Bf5 Bh3 Be4 Kg2 Rd3 Kf1 Kd2 Bhg2 Re3 Bh3 Bd3 Rd8 Re5 Bhg2 Ke3 Rd7 Ncb4 Ke1 Be4 Bf1 Nc2+ Kd1 Nb6 Bc7 Qe8 Qf8 Qe7 Rd5 Qb4 Qc5 Nb3 Bd6 Nc1 Qc6 Ne6 Rd2 Ned4 Qc5 Na3 Ke1 Nd5 Rd1 Nc2#
RbqQ3r/1N3k2/N1b5/P1K1b3/R2rBQ1P/r2Q1n2/3bpqBq/2B3nQ b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 d5 Ke3 b5 Kd4 g5 a4 e5+ Kd3 e4+ Kd4 b3 f4 g3 c4 b2 h4 b4 c6 e3 c7 e2 f6 g2 c5 g4 c6 b3 f5 g3 Qd2 Bg7 Na3 b1Q Qc2 b2 Qd1 Bd7 c8Q Kf7 c7 Nh6 Nc2 Ng4 Nh3 g1B+ Nf2 g2 Ne3 Bc6 Qb7 Nd7 c8B Bh2 Ne4 g1B Bg2 Bb8 Nc5 Nf2 Na6 Nh3 Qd3 Qc7 Ra2 Ne5 Kc5 d4 Nc4 Be3 Na5 Bd2 Rf1 Qd7 Rf4 Ng1 Ra1 Ra7 Qa8 Qe8 Nb7 Nef3 Bd7 Qc8 Be8+ Kf8 f7 Bge5 Rg4 Ke7 f6+ Ke6 f8Q Qa2 f7 b1Q Qb5 d3 Qh6+ Ke7 Qf4 Qae6 Ra3 Qf6 f8Q+ Ke6 Bg6 Qb4+ Kb6 Qd6 Be4 Qf5 Qd8 Kf7 Qh6 Qf4 Ra1 Qh2 Qf4+ Qf6 Kc5 Bdc3 Rg5 d2 Rg8 d1R Ra2 Rd4 Qd3 Bd2 a5 Ra4 Rc2 Ra3 Rc4 Qff5 Ra4 Qf6 Nc7 Ra6 Re8 Rb6 Rg8 Rb4 Na6 Rd4 Qg4 Bd7+ Qc7 Ne1 Bf1 Bc3 Bh7 Qcd8 Qgf5 Bd2 Nd6+ Ke7 Qc8 Bc7 Qh1 Bc6 Nb7 Kf7 Bg2 Qe8 Qg4 Qf2 Bhe4 Nef3 Qg5 Qd8 Qcg4 Qd7 Ra8 Bb8 Qd8 Qc8 Qf4+
4r3/2q2NB1/2b2rb1/P2n4/1B2p1QR/RPbnrb1B/K2kqq1R/2R1Q1N1 b - - 0 1 illegal: No proof kernel
Qn2n3/1bB5/1b6/PKP3r1/B1RbpNq1/5Q1N/4Nn1k/qRRqNrb1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 a4 b5+ Kb3 d5 c4 g5 h4 g3 f6 g2 a5 g4 h5 d4 f7 g3 f3 d3 h6 d2 c6 Kf4 c7 e5 h7 e4 Na3 Bg7 f8Q+ Nf6 Rb1 Rg8 h8N Qd7 Nc2 Qg4 Ne1 Bb7 Nf7 Ne8 c8R Bd4 Rc5 Ra6 Ng5+ Rf6 Bd3 Rg6 Bc2 Rf5 Qe2 Rgf6 Bb2 d1N Rc8 Nf2 N5h3+ Ke5 Qe3 Rg5 Ne2 g1B f4+ Kf5 Bc3 g2 Qf3 Bb6 Be5 Bd4 Ka2 b3+ Ka3 b4+ Ka4 b2 Kb5 b3 Bc7 Rf7 Rc1 b1Q Qg8 b2 Ba4 Qa1 Qf8 Kg6+ f5+ Kh5 Rb1 Kh4 Rc1 Rg8 f6 Rg6 Qg8 Rf8 f7 b1Q+ Qb3 Qc2 Qf3 Qd1 Qh8+ Rh6 Rb1 Rg8 f8N Rg5+ Qe5 Rf6 Qd5 Bh2 Rf1 g1B Ne6 Bhe5 N6f4 Bb6 c5 Bd4 Rd8 Bc8 Qa8 Bb7 Bb3 Be5 Rd2 Bd4 Ba4 Rf8 Rc2 Rf7 Rc4 Rf6 Nc3 Rf7 Qh1 Kg3 Qf3+ Kh2 Nce2 Qd2 Ned3 Bc3 Rfc1 Nd1 Qe3 Bd4 Ne1 Qc2 Ne6+ Rf4 Bd8 Rf1 Qf3 Nf2 N6f4 Qd1 Bc7
1R1K2R1/2Q1rb2/N2kNb1P/1n5q/Pn1qbrRB/qb3p1R/5B2/1r4QB b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Kg4 c5 Kf5 g5 h4 g4 d4 f3 e4 g3 a4 c4 e5 f2 d6 c3 d5 c2 h6 g2 h7 b3 h5 b4 h6 b2 Rh5 b3 Bc4 f1B Nh3 g1Q Be3 c1Q Na3 b1R Nc2 b2 Nf4 Qh1 Rh3 Ra7 Bf2 Nf6 Nb4 Nc6 Ne6 Be7 Na6 Rf8 h8R Ne8 Rg8 Nb4 Raa3 f6 Rag3 Nc7 R3g4 Nb5 Ba2 Bc4 Qg1 Qh2 Kg6 f5 Bb3 Re8 Kf7 f4 Bc2 Qb6 Be4 Bb3 Bf3 Bb7 Bh1 Rea8 Rb8 f3 Rbg8 Bd8 Kf8 Qd4 Kf7 Kc8 Ke8 Bc6+ d7+ Kb7 d6 Bcd5 Ng5 Kc6 e6 Bf6+ d8Q Qhe5 d7 Kd6 e7 Bf7+ Kf8 Rb8 Ne6 Qh5 e8R Rc8 Qa5 Rc4 Rb8 Qce3 d8B Re7 Nf4 Qa7 Ne6 Rf4 Bh4 Qad4 Bb6 Ra1 Ba7 b1B Bb6 B1c2 Ba7 Rb1 Qc7+ Kd5 Bb6 Be4 Ba7 Qc1 Bc5 Qa3 Bb6 Qd1 Bbf2 Qd4 Qc3 Bfg6 Qc8 Kd6 Qc3 Rf7+ Ke8 Re7+ Kd8 Bf7 Qc7+
QKR1B1b1/2n2Q2/1R1q2qp/b7/N2Qn3/1B1Q3P/qk1P2Nr/rnN2bn1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 Kb2 Kd7 Kc3 Kd6 Kd4 f5 g4 a5 e4 c6 g5 f3 b6 f4 g6 a4 b4 a3 g7 a2 b5 Be6 b7 Nf6 g8Q Na6 b8Q+ Nc7 Bc4 f1Q b6 f2 b7 f3 Qf7 Qg2 Qb3 f1B Qa7 f2 b8Q Qg6 Ne2 Be7 Nc1 c5+ Ke3 Ke5 Qd3 Qd6 Nc3 Bd8 Rb1 a1Q Rb6 Qa2 Bb3 c4 Qa4 Ra6 Qa8 Ra7 Qf8 Bg8 Qf7 Qd7 d6 Nfd5+ Kf3 Qc6 d7 Qcd6 Qe2 Kd4 e5 Ra5 e6 Ra6 e7 Ra5 Ne4 Nc3 e8B Nb1 Nc3 Ra7 Qd3+ Kc5 Nd1 c3 Q4e4 c2 Nc3 Bh3 Qa4 f1N Qaf4 Ng3 Ke3 Bh4 d8N Ne4 Qf2 Bf1 h3 h6 Rg1 Rh7 Rg3 Rg7 Rf3 Be7 Rf6 Ra3 Rb8 Ra5 Rc8 Kb4 Ne6 Ka3 Nf4 Bd8 Ng2 Kb2 Kf3 Ra6 Qfd4 Ra5 N1e2 c1N Ke3 Qc6 Kf4 Ra7 Ke5 Qd7 Nef4 Ne2 Rb6 Ng1 Nfe2 Ra3 Nc1 Qe7+ Qe6 Qf8 Qf6 Rf7 Qg7 Rf2 Qf7 Qb4 Nh4 Rh2 Ng2 Ne6 Kd5 Ra4 Kc6 Nc7+ Kb7 Qbd6 Kb8 Ne6+ Rc7 Qaa3 Rb4 Ra7 Kc8 Ra4 Rc5 Ba5 Rb6 Qa1 Kb7 Qa3 Rc8 Nc7 Bc4+ Qb3 Kb8 Ra1 Bd5 Ka3 Be6 Qa2 Bb3 Kb2 Na4+
2rn1N2/nq3Nb1/k1RQ3p/2qN4/2P2BbP/1br2QnR/1RBR3K/3n1q2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 d4 Kc7 g4 Kb7 Kg2 e5 h4 a5 d5 f5 c3 f3+ Kg3 f4+ Kh2 e3 d6 h6 b6 f2 d7 a4 g5 a3 g6 e4 g7 f3 Qb3 a2 Bb2 e2 c6+ Ka6 b7 e3 c7 Nc6 b8Q Nge7 g8N Na7 Qd5 Nec6 Bg2 f1B Nd2 e1N Bc1 f2 Be4 e2 Ngf3 Nc2 Nc4 e1Q Ng5 Bg7 Nf7 Qf8 d8R Qc5 Bf4 Qb1 Nf6 Qb7 Nb6 Bg4 c8R Bc4 Nh7 Ne3 Rab1 a1Q Qbd6 Nd1 Nf8 Bb3 c4 Rb8 Rd7 Nd8 Rb2 Qc1 Bc2 f1N+ Kg2 Qb1 Rc6 Ng3 Rh3 Rc8 Qf3 Rg8 Kh2 Qc1 Nh7 Re8 Nf8 Re3 Re7 Rc3 Re2 Nf2 Rd2 Qf1 Qe6 Nd1 Qf6 Ne3 Qd6 Nd1 Nd5+
R4N2/1Bk1b3/qRn2b1p/3N1KNq/1P3Qr1/2bnRnQ1/N1r1b1P1/3q2B1 b - - 0 1 illegal: No possible last move
2b1R2r/q2r2n1/1b2B1Pn/qP2NN1N/b2R1Q1r/2BQ4/p1n2N2/n1K2B1k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 d4 Kg5 Kd2 f5 g4 h5 d6 c5 d5 a5 e5 a4 b6 f3 b7 Kf4 g5 Kg3 d7 f2 g6 c4 d6 f4 e6 f3 e7 h3 e8B c3+ Kc2 h2 Qd4 a3 Ra2 h4 Kd1 c2+ Kd2 h3 Bb5 Kg2 Nc3 f1Q Qh4 f2 Nce2 Nh6 Nd4 Qa5 d8N Ra7 d7 Na6 b8N Nc7 Nf7 Ne6 d8Q Bc5 Nd7 Bb6 Qf4 Ng7 Bb2 c1N Nf6 Rd7 Bc3 Nb3+ Kc2 Qa1 Nf5 f1N Nh5 Qa7 Ne5 Qe1 Ra1 a2 Rd1 Na1+ Kc1 Ne3 Bf7 Nec2 Be6 Qd2+ Kb2 Qd5 Kc1 Qda8 Rd4 Qa5 Ngf3 Q8a7 Re1 h1B Ng5 h2 Bf1+ Kg1 Re3 Bc6 Ne4 h1R Nf2 Ba4 b5 Rh4 Rc4 Rb7 Qd3 Rd7 Ree4 Ba6 Rc8 Bb7 Re8 Bc8 Qfe3 Kh2 Rd4 Kg1 Qf3 Kh2 Qf4+ Kg1 Nfg4 Kh1 Nf2+
n2RQnbk/q1B1rQr1/r2BN1PP/3B3R/2K3Nq/1pb1q3/4QB2/6nr b - - 0 1 illegal: No proof kernel
1n1NRrN1/rbRrNQb1/4K1pQ/r2B1Q2/P3P1kq/B7/1n6/qQqn4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 e4 f5 d4 b5 a4 b3 d6 b2 d7 b4 h6 c4 h7 g6 d5 c3 d6 c2 Nf3+ Kg4 h4 b3 h5 Bg7+ Ke6 Bb7 h6 Qh4 d8N Ne7 d7 Nec6 Nd4+ f3 Bc4 f4 Bd5 Ra7 Nf5 Nb4 Nc3 b1Q Ba3 c1Q Ne7 b2 Ng8 Nd3 Qc2 Qa2 Qb1 f2 Rh2 f1N Rh3 Qf2 Rh5 f3 Re5 Qg3 Qc2 b1R Bc4 f2 Nf6+ Kf3 Kf7 Ba8 Ne6 Qgg5 Ncd5 Rg8 h8Q Ne3 h7 Rd8 Qf8 f1R h8Q Rh1 Qh6 Qd2 Ng8 Rbd1 Rc1 Qa1 Qb1 Bb7 Ba2 Qdb2 Rc7 Qc1 Bc4 Re8 d8Q Kg4 Qf6 Nb2 Nd8 Rh5 Ree7 Rd3 Ke6 Ned1 Q8f7 Rf8 Re8 Qh4 Nde7 Rha5 Qf1 Rd7 Bd5 Kg3 Q1f2+ Kg4 Q2f5+
rn4RN/1B6/k2B2pq/N1q1BQPn/K3b3/PQNr1b1n/5B2/1R2rnb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 h5 c4 d5 cxd5 Ra7 g5 Ra8 Qg4 hxg4 Kd1 Kd7 Kc2 b5 Kb3 e5 d4 c5 h4 Kc7 f4 Kb7 d6 g6 d5 e4 f6 g3 d7 e3 h5 e2 f7 e1R a3 g2 h6 Ra5 d6 Nf6 f5 Nh5 f6 Ka6 h7 Bb7 Bf4 Bf3 Ne2 g1N Bg2 Nh3 Nec3 Qe7 d8B c4+ Kb2 b3 d7 b4 Bb6 Rb5 d8Q Rd5 Bf2 Rd3 Qd5 Qc5 Nd2 Bd6 f8B Be5 f7 Bd4 B2g3 Bg1 B8d6 Rf8 Rb1 Rc8 Ka1 b2+ Ka2 Rd8 f8Q Rc8 Rd1 b1N Nb3 Nd2 h8N Nf1 Na5 b3+ Kb2 Rd8 Qff5 Rc8 Bf2 Rf8 Ka1 b2+ Ka2 b1B+ Kb2 Rfe8 Bfe5 Bc2 Rb1 Rd8 Ne4 c3+ Ka2 Rf8 Qb3 Rc8 Bc7 Qf8 Bcd6 Qh6 Rh2 Bcd1 Rh1 c2 Nc3 c1Q Rh2 Bc2 Bh1 N3f4 Rh4 Nh3 Rb4 Nc6 Rb8 Qe3 Kb2 Qc5 Bg2 Rf8 Re8 Nb8 Rd8 Rf7 Rg8 Ra7 Bh1 Ra8 Ka2 Be2 Bb7+ Ka7 Qf3 Rdd1 Qb2 Be4 Kb3 Rd3 Qf5 B2f3 Qa2 Kb6 Ka4+ Ka7 Bd5 Ka6 Qb3 Bg4 Bc6 Bgf3 Bb7+
R1Q5/7Q/1bq1qPb1/nk2Brb1/1B2Qr1R/1rbNP2n/p3B2q/1NQK4 b - - 0 1 illegal: No proof kernel
1R3B2/3n2b1/Q2nNp2/1r1N1RBn/b2kPqB1/br6/3qQ2P/K1N1r1Nr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Ke7 b4 Kf6 d4 c5 Kd2 a5 Kc3 g5 Kb2 g3 b6 a4 b5 a3+ Ka2 g2 b7 f3 d6 g4 d7 c4 b6 g3 d5 Ke5 d6 c3 Qe1 c2 Qb4 f2 Nd2 Nh6 Qb3 Kd4 Be2 f1N Qf3 Ra5 Rb1 Rb5 Ka1 a2 Ba3 c1Q Qg4 Qf6 d8B Nd7 b8N Nf5 b7 Rh3 Na6 Qg5 b8Q Qf4 Bg5 f6 Nc5 Bg7 Nc4 Qcd2 Qa8 Bb7 Nb6 Bd5 Qc6 Bb3 Nd3 Ba4 Nb4 Nc5 d7 Nd6 d8N Nd7 Qc2 Qe5 N6d5 Qef4 Kb2 a1R Qe6 Nc8 Qa6 Nd6 Re1 Rd1 Bg4 Ra1 Re2 Re1 Rf2 Rh4 Nh3 g1R Ka2 g2 Nd3 Rb3 Nc1 Ng3 Ka1 Nh5 Qa2 Rgf1 Ng1 Rb5 Qc2 Rh3 Qd1 Rhb3 Qe2 Nc4 Bf8 Nd6 Nh3 g1B Ne6+ Ke5 Rf3 Bc5 Rg1 Ba3 Rg2 Rh1 Ng1 Rb6 Rgf2 R3b5 Rc3 Rb3 Rc8 Rb7 Rb8 R7b5 Nec7 Kd4 Rf3 Qfe3 Rf5 Qf4 Ne6#
3nR1Q1/qr1n3R/k4pKB/1b4N1/n2qPP1N/1N6/rbq5/BrNBnQ2 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 h4 gxh4 Kd2 a5 Kd3 h5 Ke4 d5+ Kf4 Kd7 Kf5 Kc7+ Kf4 Kb7 g4 d3 c4 d2 e4 a4 g5 f6 b6 d4 c6+ Ka6 g6 a3 f3 a2 b7 h3 c5+ d3 g7 h2 c7 h4 c6 h3 Be2 Ba3 Qe1 d1Q Nd2 Bd7 c8N Ne7 g8Q Bb2 c7 Nec6 Nd6 Qc2 c8N Rh7 Nb3 Qa5 Rb1 a1Q Nf7 Nd8 Ne7 Bb5 Kf5 d2 Qf1 d1N Ng6 Nd7 b8B Nc3 Bd1 Na4 Nh4 Qb4 Ng5 Qd4 Ne2 Qa2 Rg1 h1R Be5 h2 Kg6 Ra7 Rg3 Rg1 Bcf4 h1N Nec1 Nf2 Rh3 Nd3 Rh1 Ne1 Rh2 Qdc5 Bc3 Qd4 Bfd2 Ba3 Ba1 Bb2 f4 Kb7 Qe8 Nac5 Qh3 Bc3 Ne2 Nf3 Ng2 Nb6 Rc1 Qcb2 Be1 Nc6 Bc2 Qbb1 Qd8 Bb2 Qg8 Rc7 Rh1 Ncd7 Bb4 Rd1 Bd6 Ne1 Bf8 Ra3 Rh2 Ka7 Qf3 Rb7 Qf1 Ra6 Rh7 Qa3 Bd3 Ra4 Rc4 Qc2 Nh4 Rb1 Bh6 Qac5 Rc3 Ra2 Nec1 Na4 Be2 Ka6 Bd1 Qa7 Rc5 Nd8 Re5 Rb6 Ree7 Rb7 Re8
1NB2Rk1/nQ5N/1bqRP2q/1q6/bNr1Bb1r/1n1PN3/K3pb1B/1Q4r1 b - - 0 1 illegal: No proof kernel
k1q1n1BN/b2QQ1R1/3nP1rN/1Rq3r1/2P4r/1Q1n4/K2BQpn1/2Rb1q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 g5 h4 d5 b4 Kd7 e4 Kc7 c4 Kb7 Kc2 f5 Kb3 a5 b6 g4 e5 a4+ Kb2 g3 b5 f3 h6 d3 h5 d4 h7 g2 h6 f4 Be2 d2 Rh2 a3+ Ka2 d3 Qc2 d1N Nd2 f2 Bg4 f1Q Nh3 g1Q Ne4 f3 Nhf2 d2 Ng5 Ra5 Be6 Nc6 Ng4 Nf2 Nf7 d1N Rg2 Nf6 Bd2 Ne7 Rc1 Ne3 Qd1 Nd3 Qe2 Rg8 h8Q Rg6 h7 Ne8 Qf6 N7f5 h8Q Ka8 Ngh6 Bc5 Qe7 Nfd6 Qh7 f2 Rg3 Ng2 Nh8 Bd4 Bf7 Bg4 e6 Qc8 Bg8 Qh2 Qd7 Qh5 Qhe7 Qhc5 b7+ Ka7 Qe1 Bd1 Qe2 Be3 Ka1 a2 b8R+ Nc7 Rb7+ Ka8 b6 Nce8 Rg5 Nde1 Kb2 a1R Rf5 R1a3 Rf7 Rd3 Rg7 Rd4 Kb1 Rb5+ Ka2 Nd3 Rc7 Qb4 Rc5 Rh4 Rh5 Rbg5 b7+ Ka7 Bc3 Qbc5 b8Q+ Ka6 Ba5 Bd4 Qb3 Be3 Bc7 Ka7 Ba5+ Ka8 Bc3 Qf5 Bd2 Ba7 Rc2 Qfc5 Rc1 Rgg4 Rf5 R4g5 Re5 Q5c7 Ra5 Qc5 Rb5
1n6/1k3n2/1BRRPq2/4r1pq/KbQqN2P/2QNqB1b/R2r1b2/2BrR3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kc3 c5 Kb3 Kc7 h4 f5 e4 a5 b6+ Kb7 d6 c4+ Ka4 c3 b4 g3 d5 f3 b5 f4 d7 c2 e5 f2 d6 g2 Ne2 g1B Qd2 f3 Nf4 Qe8 d8B Nh6 d7 Nf7 Nc3 Bb4 Be2 f1R Nd3 f2 Ne4 Rd1 Bf3 f1Q Qc3 Bf2 Ra2 Rh6 Bc7 Rd6 d8R Bh3 e6 Qh8 Rd7 Qh5 Rg1 Rd5 Rd6 Re5 Rh1 Qg1 Bd8 Qgg4 Re1 Qf5 Qc4 Qf6 Bc7 Nd7 Qc3 Rd8 Qc4 Nb8 Qc3 Ka8 b7+ Ka7 b6+ Ka6 Ba3 c1Q Rc6 Qe3 Bc1 Nd7 b8R Rd2 Rc8 Kb7 Qc4 Nb8 Qc3 Rd4 Rd8 Rd1 Rdd6 Rdd5 Nf4 R5d2 Nd3 Bc5 Kb5 a4 Ka5 a3 Ka4 Bb4 Bd8 Ka8 b7+ Ka7 Bb6+ Ka6 Rb2 a2 Rc2 a1Q+ Ra2 Nd7 b8Q Qb2 Qg8 Nb8 Qh7 Kb7 Qc4 Qbd4 Qc3 Rd5 Qf5 Rc5 Qd5 Rb5 Qdb3 Re5 Qbc4
5K2/1b2QQ1r/1N1Bp1P1/PN4N1/1nrn4/3qr1Bq/1Rb1N1rq/1R1kbB2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 g4 b5 a4 h5 f3 b3 f6 b4 g5 b2 a5 h3 f7 b3 g6 h2 d6 h4 d7 h3 Ra2 Nh6 Qc2 Nc6 Na3 b1B Nb5 b2 Qb3 Nb4 d4+ Kg3 f4+ Kf2 d5 Ke1 f5 Bb7 f6 Bc2 d6 b1R Qf3 Rh7 Bf4 Rb2 Ne2 Kd1 Bg3 Nf5 Rg1 Bg7 f8N h1Q f7 h2 Qd5+ Nd4 Nc1 c6 Ne6 Bf6 f8N Bh4 Ng5 e6 Qf5 Rc8 Qf7 Qg2 Rh1 Qh3 Rg1 Rb3 Rb2 Re3 Rh1 Qc7 d8Q Qd7 Rg1 h1Q Qde7 Q1h2 Rh1 Qd8 d7 Rb8 Kd6 c5 Rg1 c4 Rh1 c3 Rg1 Qc8 d8B Qc4 Bc7 Qd3 Nd7 Rbh8 Nb6 Rc8 Bf4 Be1 Bg3 Rch8 Kd7 Rc8 Bcd6 Rf8 Qg8 Rf2 Ke8 Rg2 Kf8 Bb3 Na2 c2 Qgf7 c1R Rh1 Rc4 Nc1 Ba4 Rg1 Rd2 Rb1 Bb3 Rg2 Ra2 Rgb2 Ba4 Rb3 Rg2 R3b2 Bc2 Ne2+
5nR1/1n1QqR2/2PN2Nq/1bqN3r/5P1n/BN1R1Bp1/4k1n1/1KQr1bb1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 f4 g5 b4 a5 c5 d5 h5 e5 c6 a4 b6 a3 b5 a2 f6 g3 b7 g2 h6 g4 h7 g3 f7 d3+ Kb2 d4 b6 d2 Nh3 Ke3 Kc2 g1Q Bd3 e4 Na3 Qe7 Ba6 d3+ Kb2 Nd7 b8R Nh6 b7 Nf5 Qf1 Nh4 Nb5 Ra7 Rb1 a1N Nc7 Nb3 Nf2 Na5 Nd5+ Kf3 Ka2 d1B Rb3 e3 Ba3 d2 Kb1 Be2 Qc1 d1Q Ne4 Bb5 Rd3 Ke2 Nd6 Qh2 Ra8 Qdg1 b8Q Nb7 Qc7 Bg7 f8N Bd4 Ne6 Nf8 Nc5 Bh3 Qd7 Bf1 Rb8 Ra8 Re8 Rd8 Nb3 Qh3 Rd1 Qhe6 Rd3 Qh6 Rh3 Kf2 Rh1 e2 Rh3 e1N Rh1 Rg8 h8N Ke2 Ng6 Rh8 Rh2+ Neg2 Rh1 Ne6 Rg8 Nf8 Rh3 Ba7 Rh2 Qc5 Rh1 Nf3 Rh5 Nfh4 Rf5 Qhg7 Rf6 Rh5 Rf7 Qh6 Ne3 Ba4 Bc4 Bb5 Bd5 Qb4 Be4 Bc5 Nd5 Bg1 Nb6 Qc5 Nd5 Ra8 Nc8 Ra4 Nd6 Rd4 Rc3 Rd2 Rd3 Rd1 Bf3+
NN2bK2/2qqN2b/rbP4r/Q3B2p/3b1Q1k/1R2BPR1/Bq4n1/B5nn b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 h5 Kd5 a5 b4 e5 c4 a4 g4 d6 b6 e4 f3 a3 b7 h3 b5 a2 b6 d3 c5 e3 Ne2 Kg5 f6 d2 f7 h2 Na3 Rh6 Nc4 Bd7 Nf4 e2 Rb1 a1Q Ng6 e1B Qa4 Ra6 Qa5 Bf2 Rg1 h1N Rg3 Be8 Ke6 Bg7 f8B Nc6 b8B d5 b7 d4 Nb6 d3 Na8 Nf6 Ne7 Kh4 g5 d1Q g6 d2 Bc4 Ng4 Ba2 Ne3 Rb3 Ng2 Bf4 Qb1 b8N Qc7 Bd6 Bb2 Bg7 Nd4+ Kf6 Bg1 c6 Ne2+ Ke6 Bc5 Bh8 Bf6 g7 Bb6 g8Q Ng1 Qf8 Qa1 Bf4 Qd4 Bb2 Qc2 Be3 d1B Ba1 Qcb2 Qf7 Bc2 Qf8 Bh7 Bg7 Bd7+ Kf7 Qdd6 Bh8 Bfd4 Be5 Be8+ Kg7 Qd5 Qf7 Qdd6 Kf8 Qdd7 Qf4+
n7/b1Qn1Bk1/q1pN1B2/Bn1NQ2P/3b2bK/r1R4R/1r1B2rP/N4r1q b - - 0 1 illegal: No possible last move, all moves rejected
nQn3N1/1KB5/1P1N4/2r2qq1/RrR1nP2/1b6/1b2pbBb/NBrNk2Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 c5 d4 a5 g4 h5 b4 a4 g5 h3 b6 e3 Kb5 h2 b7 e4 g6 c4 g7 h4 f3 h3 Ra2 c3 Ne2 a3 Nd2 c2 Nb3 Be6 Bg2 Ra4 Bd2 c1R Qg1 Rh5 Nc3 Na6 b8Q+ Nc7+ Kb6 Ne7 g8B Nc8+ Kb7 Bg7 b5 Be5 b6 Rb4 Ra1 a2 Bh7 Rf5 Bf1 Qg5 Nd1 Bg3 Rb1 a1B Qg2 Bc3 Ra1 Bb2 Ra4 Be5 Rg1 h1N Na1 e2 Bf4 e1B Qh2 e3 Rg4 e2 Bg6 Rf7 Bb1 Nf2 Qg1 h2 Bg3 Ke7 d6+ Kf6 d5 h1Q d7 Na8 d6 Qh3 Qh1 Bb3 Rc4 Qhf5 Bh2 Rg7 Bf4 Rg6 d8N Ne4 d7 Bf2 Nf7 Ke6 d8N+ Kd5 Bh2 Rc6 Nh6 Rc5 Ng8 Bd6 Nf7 Bdg3 Rc3 Kd4 Rc2 Kd3 Rc3+ Kd2 Rc4 Bh4 Bc7 Bhg3 f4 Ke1 Nd6 Bh2 Bg2+
2qq3N/3Q1K2/1Pr1n3/2r1RPp1/3B2n1/2q1bbQ1/Qbrb1R2/kN1R1R1B b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 b4 e5+ Kc4 a5 d4 c5 f4 e3 h4 a4 b6 a3 b5 e2 b7 e1R h5 a2 h6 e4 h7 g3 b6 e3 f5 g2 Qc2 e2 Rh3 Nd7 b8R Ngf6 Rf3 Ng4 Qc3 Bg7 Be3 Rc1 Nh3 e1B Rf2 g1B Nf4 Rc2 Bg2 Bb7 Bh1 Ra5 Ng6 Nf8 Rc8 Rg8 h8Q Ne6 Qh2+ Be5 Rc7 Bd2 Nh8 Rg6 Re7 Bc6 Na3 Ba8 Raf1 a1Q Nb1 Rb5 Qg2 Qa6 Qg3 Qac8 Re8 Ra2 Qb3 Rc2+ Kd3 c4+ Ke4 c3 Qa2 Bc6 Re7 Rc5 Re8 Bb5 Re7 Be2 Re8 Kd7 d6 Kc6 d5+ Kb5 d7 Kb4 d6 Bf6 Bd4 Bg7 Qa6 Kb3 Qa7 Kb2 Qa6 Nf8 Re5 Ne6 Qc4 Ka1 Qd5 Qf8 d8Q Rh6 Qd7 Qfd8 Rf4 Bge3 R4f2 Rb2 Qc4 c2 Qb3 c1Q Qc4 Rc7 Kd5 Qc3 Qb3 Rc2 Qba4+ Kb2 Qa8 Bd1 Qa2+ Kc1 Qa7 Nf8 Re7 Kb2 Qe8 Bc1 Bf6 Rc5+ Ke4 Qdc7 d7 Be2 Be5 Rhc6 d8R Bd1 Rdd2 Q7d8 Qed7 Bf6 Rd4 Qa5 Re6 Be2 Rdd1+ Ka2 Bb2 Bcd2 Qa8 Bfd4 Re5 B4c3 Bc1 Ba1 Bb2 Qa3 Bd4 Bb2 Qa6 Ka1 Qc4 Qc3 Qce6 Rc4 Kd5 Bf3+ Re4 Rc7 Kd6 R4c5 Re5 Ra7 Qb3 Ne6 Qc4 Rac7 Qd5 Qg8 Ke7 Qgd8+ Kf7 R7c6 Qa2+
bb1qBK1n/q1r3Qb/1P5P/Nqk3Q1/2B1BB1r/4bN2/R2p1nn1/4R2R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 g5 Kf5 a5 b4 g4 c4 f3 e4 a4 h4 f2 h6 g3 h7 a3 h5 a2 b6 g2 b5 d3 e5+ Kc5 e6 d5 b7 d4 b6 d2 Qa4 d1N Nd2 d3 Nh3 g1B Qa6 Ra7 Ng5 Nf6 Bg2 f1Q+ Ndf3 Nd5 Bf4 d2 Ne5 Nd7 b8R Bd6 e7 Nf2 e8B Rc7 Re1 a1Q Ra8 Bb7 Be4 Nf8 Ngf3 Ng6 Nc6 f6 Ke6 f5 Qa2 Ne3 Na5 Ng2 Qb2 Qd3 Qf6 Qdb1 Qg5 Qb5 Ra6 Ba8 Ra7 Rg7 Ra6 Bb8 Ra7 Rc7 h6 Rf8 h8Q Rg8 Qc3 Nh8 Qcf6 Rgg7 Qb2 Rgd7 Qbg7 Rd4 Be5 f4 Ra6 Kb4 c5 Qa3 c6 Kc5 Nh4 f3 Ra7 Rcd7 c7 Rc4 c8B Rc7 Bcb7 Rd4 Bed5 Re4 Bc4 Qa1 Nf5 Rh4 Be4 Qa2 Bf4 Qaa4 Nc6 Qaa6 Na5 Qb7 Ra6 Qa7 Nd4+ Bd5+ Kf5 Nd3 Nac6 f2 Nf3 f1B Ra2 Be2 Na5 Ba8 Bed5 Be3 Ke6 Nf2 Bb7+ Qd5+ Kf6 Bd3 Bbc6 Bh7 Bb7 Rc8 Ke7 Rc6 Kf8 Rc7 Ne5 Qd4 Be4 Qd8 Nf3+
q2R4/3rBnN1/PN6/q2B2k1/n1B2n2/Bb1N2pb/2P1r1Qq/1K1R1Qbq b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 a4 b5 e4 d5 h4 f5 e6 Kf6 a5 g5 a6 f4 h6 f3 h7 g4 e7 b3 e8Q b2 h5 b4 e5+ Kg5 h6 f2 e6 d3 e7 d4 Bg2 f1Q Bc6 g3 Nc3 b1Q Bd7 b3 Na2 b2 Bg4 Qg2+ Ne2 Nd7 Nb4 Nb6 Nd5 Qa2 Qc6 b1B e8B Bc5 Bf7 Ra7 Bge6 Qh2 Rf1 Qa4 Ba3 Ba2 Kc1 Bb3 Nef4 Qa5 Nh5 Na4 Nb6 Qf8 Bc4 Bh3 Re1 Qa8 Re8 Rd7 Qg2 d2+ Kb1 d3 Rd8 Nc3+ Kb2 Ne2 Bfd5 Nf4 Qde2 d1Q Ng7 Kf6 Qef2 Qdh1 Qff1 d2 Re1 d1N+ Kb1 Nb2 Rc1 Ne7 Rd1 Re8 h8N Ng8 h7 Na4 Ng6 Nh6 Ne5 Bg1 Nd3 Re5 h8B Ree7 Ne8+ Kg5 Bc3 Re3 Bcb4 Nf7 Ng7 Re2 Be7+
1N2B2r/1bQrB1NR/P4bn1/4q3/bnp4B/K2N3P/2kN1qQ1/1q3Rbr b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kf7 a4 Kf6 d4 c5 Kd2 g5 Kc2 b5 Kb3 e5 d6 e4 d5 g3 a5 g2 h3 e3 d7 c4+ Ka2 g4 d6 b3+ Ka3 e2 Qc2 e1Q Be2 b2 Nd2 b1Q Ngf3 g1R Ne5 g3 Bh5 g2 Be8 Qe7 d8Q Qf2 Nd3 Ra7 Qc7 Bb7 a6 Rf1 Rg1 Bg7 Qa2 Qee1 d7 Nc6 d8N Qe5 Ne6 Nge7 Bb2 Ng6 Bd4 Qg3 Bf2 Nb4 Be1 Qf2 Qc2 Bh6 Ng7 Bg5 Qb2 Qe2 Bg3 Qf2 Bh4 Rd1 Re1 Rc1 Re4 Rh1 Rd4 g1B Rd7 Ra8 Re7 Rd8 Qa2 Rd7 Qb2 Qc2 Rf1 Qd1 Ne6 Qb1 Rh7 Na2 Ng7 b4+ Ka4 b3 Ka3 Nb4 Qc2 Ke7 Qa2 b2 f6+ Kf8 f7 Ke7 f8B+ Kf6 Nf5 Ke6 Ng7+ Kd5 f5 Kd4 f6 Kc3 f7 Kc2 Be7 Bf6 f8N Qbe1 Qa1 b1B Qd4 Ba2 Qg4 Qb1 Qg5 Bb3 Qg2 Rd8 Nd7 Ba4 Nb8 Rd4 Rd1 Rd7 Rf1
2rBBk2/N4q2/P2P4/rNrQ1NR1/Rr3Q2/Knqp2Q1/b4bn1/qQ4b1 b - - 0 1 illegal: No proof kernel
2B2b2/kr2R1b1/pR1nq1nQ/1r1brn1b/K4PPB/N1qQ1RB1/1N6/7B b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 b4 Kd7 f4 Kc7 c4 Kb6 Kc2 h5 Kb3 e5 f6 e4 g3 a6 c5+ Ka7 c6 e3 f7 h3 c7 e2 Qe1 h4 Bd2 d3 Be3+ d4 Ra4 h2 Qc1 e1B Qc3 h3 Bf2 d2 Ka3 d1B Qc4 Ne7 Nf3 Bc3 Bg2 Qd7 Re1 h1N Ne5 h2 Nd3 Nbc6 Nb2 Bb7 c8B Rh7 Qd3 Ng6 Re7 Bh5 g4 Na5 Bh4 Ng3 Bh1 Nc4+ Kb3 Qf5 Ra3 Rb8 Ka4 Nd6 Rb3 Qe6 Na3 Ngf5 b6+ Ka8 b5 Bd5 b7+ Ka7 Bd7 Re8 b8R Rg7 Rb6 Rh7 Bg2 h1R Be4 Re1 Bh1 Rb8 Bc8+ Rb7 Bg3 Re5 Bh4 Bb4 Bg3 Bg7 f8Q Rh8 Qf6 Rh6 Qg5 Rh7 Qh6 Rh8 Qe4 d3 Rc3 d2 Rf3 Rg8 Qd3 d1Q+ Nc2 Rf8 Nc4 Rf6 Rc7 Ne8 Rbc6 Qf1 N2a3 Qe2 Nb2 Bbf8 Re7 Qf7 Rce6 Qd2 Rc6 Rd7 Bh4 Qc3 b6+ Ka8 b7+ Ka7 Bg3 Rfd6 Bh4 Qe6 Bg3 Rc7 Bh4 Rdd7 Rd6 Rc5 Rb6 Rb5 Bg3 Re1 b8B+ Ka8 Nb1 Rb7 Be5 Ned6 Bf6 Ka7 Na3 Re5 Bfh4
4r1Q1/qkqRB3/p1qN2r1/b1bBK3/P1b1Q3/1B1r1P1n/Q3n1RQ/2r4N b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 Kd7 Ke3 Kc7 Kd4 h5 g4 b5 a4 e5+ Kc3 b4+ Kc4 b3 d4 e3 d6+ Kb7 Kd5 h3 d7 b2 g5 h2 g6 a6 g7 e4 Nd2 b1Q Nh3 e2 Ra2 e1B Qc2 e3 Ke5 h4 d5 e2 d6 Rh6 Ba3 Nf6 g8Q Qc7 d8Q Be6 Ne4 Rg6 Qe8 Qbb6 Bg2 Ba5 Rd1 h1Q Rb2 e1R c6+ Ka7 Qb3 Nh7 Qa2 Bc4 Rbd2 Re3 Bf3 Qcb7 c7 Ng5 c8B Q7c7 Be6 Rd3 Rg1 Qbc6 Rg2 Kb7 Bd1 Be7 f3 Qg1 Bb3 Qa7 Nhf2 h3 Bd5 h2 Nh1 Nh3 Qh8 Qcb6 d7 Bc5 d8Q Qc7+ Kf5 Nd7 Qeg8 Nf8 Qe7 Ne6 Qh6 Re8 Nd6+ Ka8 Qhh8 Nef4 Qe4 Ne2 Qh5 Rc8 Ke5 Rb8 Ng3 h1R Qh6 Rc1 Nh1 Nhf4 Qh2 Nh3 Rd1 Rd8 Bb4 Rb8 Be1 Rc8 Bh4 Re8+ Be7 Bcb4 Be6 Re3 Rd5 Bc5 Rd4 Qcb6 Nc8 Rd3 Rd7 Kb8 Bd5 Ka8 Rd6 Kb7 Rd7+ Qc7+ Nd6+
1B4q1/r1nQnb1P/1bQ1B1n1/3p4/2n2k1b/2NP3R/3rBN1Q/BrqR1K2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 h4 Ke7 e4 Ke6 c4 Ke5 b6 f5 c6 a5 c5 d5 c7 g5 h5 g3 b7 g4 c6 a4 h6 f3 d3 f2+ Ke2 f4 Bd2 g2 Nh3 g1B Nc3 f3+ Ke3 a3 Ra2 g3 Be1 g2 Ra1 a2 Ng5 Na6 b8B Ra7 Nh3 Ne7 Kd2 Be6 c8Q+ Nc7 Rh2 Bf7 Be2 f1R Qd7 Bb6 Qc2 g1N Nf2 Kf4 e5 Nh3 Rd1 a1Q e6 Bg7 Qa2 Qg8 h7 Bf6 Qb2 Bh4 Qc2 Rg1 Rh1 Rg2 Qb2 Nc8 e7 Qb1 e8Q Ne7 Ng4 f2 Qec8 Ng5 Rh3 Ne6 Qa2 Nf8 Qb7 Nfg6 Qb2 Ne5 Qa8 Nb5 c7 N5g6 c8B+ Nc7 Qac6 Qa1 Bf3 Rh2 Ke2 f1N+ Nf2 Ne3 Qa2 Nc4 Kf1 Qc1 Be2 Qe3 Bd2 Rg2 Bc1 Rh2 Bb2 Qc1 Ba1 Rg2 Bf3 Rh2 Nh1 Rd2 Be2 Qg7 Nf2 Re8 Qb5 Qg8 Qdc6 Rd8 Be6 Rd6 Qd7 Rc6 Qba4 Rc5 Qac6 Rb5 Qc2 Rb1 Nh1 Nf8 Bf3 Rg2 Qf2 Nfg6 Qg1 Rc2 Be2 Rca2 Nf2 Rd2 Qh2+
2nb1Nr1/1qRB2qP/k3QRP1/2r3Q1/2p5/1b2N1RK/qBNrrN2/2b2n2 b - - 0 1 illegal: No proof kernel
1N1RBK2/1N1Q2rP/1N1p1P2/1q6/1nnBk1b1/B2r2Qr/2r1b3/qN1n2bR b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 g5 b4 a5 f4+ Ke4 c4 a4 h4 g3 f6 a3 h5 g2 f5 a2 f7 d3 b6 e5+ Kb5 g4 h6 g3 c5 d2 b7 Ne7 f6 Ng6 c6 Qb6+ Kc4 Ra3 b5 Rd3 c7 Bc5 f8B Na6 b8N Nb4 Ne2 g1N Bb2 g2 Nf4 Ne2 Bd4 g1R Ne6 Nc3 Nd8 Qb7 Qa4 d1B b6 Be2 h7 Nd1 Kb5 Rg2 Be7 Rg8 Kc4 Qc6 b7 Rg7 Bd6 Rh2 Bh3 Qb6 Be6 Qc6 Bf7 Rhh3 Be8 Ba7+ B6c5 Qb6 Qb5 d6 Qd7 Nd5 Ba3 Nb4 Na6 Qa5 b8Q Bb6 Nb7 Qa4 Qb5 Bcg4 c8N Ba7 Qd7 Bc5 Bdb2 Bg1 Bd4 Qb3+ Kb5 Qa4+ Kb6 Qb5+ Kc7 Nh4 Kd8 Ng2 Bf7 Nge3 Ke7 Nc4 Nb6 Kf4 Qc6 e4 Qg8 e3 Qd7 Ke4 Kf8 Bef3 Be6 e2 Bf7 e1R Be8 Re2 Nb8 Rc2 Qgf7 Be2 Qg6+ Bf5 Qg3 Be6 Nd2+ Kf5 Rc1 a1Q Nb1 Ke4 Bh5 Rb2 Be8 B6g4 Rc3 Ra2 Rb3 Rc2 Rc3 Nce3 Rc8 Nc4 Rd8
q7/B2n1N1p/BR6/1B1n1r1q/q2bb1R1/nRn1r1bk/N2PQP2/2B1KQ2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ra6 Kf7 g4 c5 b4 e5 g5 c4 b6 Kg6 b5 Kf5 g6 e3 g7 c3 b7 e4 d6 c2 b6 h3 d7 h2 Ra3 a5 Ba6 a4 Ke2 Kg4 Nh3 Ne7 Rd3 a3 g8B a2 Bb2 c1N+ Kf1+ e2+ Kg2 a1B Bd5 e3 Rc3 Na2 Qg1 e1Q Bdc4 e2 Ng5 Qd1 Bcb5 e1N+ Kf1+ Kh4 Bc1 Nc2+ Kg2 Na3 Rg3 Qa4 Kf1 Be5 Ke1 Bfg7 Rc3 Rf8 Rb3 Rf5 Nc3 Bg3 Nf7 Qg8 d8B Nd7 b8Q Bd4 Qe5 Bb7 Qe2 Qh8 Bc7 Re8 Bb8 Bf3 b7 Nd5 Ba7 Re3 b8R Be4 Rb7 Qa8 Rb6 N5f6 Nd5 Nc3 Nb4 Nfd5 Na2 Bb8 Qg6 Bd6 Rg1 h1Q Qg8 Qf3 Qg2 Qh5 Qh1+ Bh2 Rg4+ Kh3 Qg1 Bg3 Qf1+
R2N1bb1/3Q1qqp/K2n1Qr1/2bq1n2/N1B1k3/4P1rQ/2nNP3/N1n1B2R b - - 0 1 legal: proof: h4 e5 d4 b5 a4 g5 axb5 gxh4 d5 e4 d6 e3 fxe3 cxd6 Bd2 d5 Bc1 d4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 g4+ Ke4 b4 d5+ Kb3 f5 Ka4 a5 c4 f4 c5 f3 g5 d3 c6 h3 g6 d2 c7 d4 g7 f2 b6 h2 Kb5 a4 b7 d3 Nh3 a3 Qa4 d1Q Qa6 a2 Ng1 d2 Bh3 f1Q Nf3 Ne7 g8Q Nbc6 b8N Nf5 Ne1 Be6 c8N Qg5 Qg7 Rg8 Qd7 Rg6 Nb6 Bg8 Na4 Ncd4+ Ka5 Nc2 b5 Ra7 Nc6 Nd6 Be6 Qf7 Nd8 Qe5 Bb3 Qeg7 b6 Ra8 b7 Ra7 Rg1 h1N b8Q Ng3 Bc4 Ngf5 Rh1 Rg3 Qb4 Rb7 Qb2 Rb6 Qf6 Rc6 Qac8 Rb6 Na3 Rc6 Nf3 Rb6 Rb1 a1B Rb2 Rc6 Rb8 Bd4 Ra8 Bc5 Bb2 Rb6 Bc3 Rc6 Nd4 Rb6 Nb1 Rc6 Nb3 Rb6 Rh3 Qh1 Na1 d1N Be1 Nb2 Rh6 Nd3 Rh5 Qf3 Rh6 Nc1 Rh1 Nh4 Qh3 Qf5 Qd7 Q5d5 Bd2 Nhf5 Be1 Rb8 Ka6 Rc8 Nc6 Re8 Nd8 Re6 Qg5 Rh6 Qf6 Rhg6 Nd2+
1B4qq/3R1RPB/nQ1b1rPQ/8/kQ1Nn2q/2b2r1b/K1BpBN1n/4n3 b - - 0 1 illegal: No possible last move
4B2b/2B1RbPr/1q2P1Rn/4r2p/3R1Q2/1rqq2R1/k2r1N1K/BNQ1n2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 Kg2 Kc5 d4+ Kb4 e4 c5 g5 f5 e5 h5 b3 a5 b6 f3+ Kh2 f4 d6 a4 g6 f2 d7 c4 d5 f3 d6 c3 b7 c2 Nh3 a3 Nd2 a2 Ng1 h3 Bd3 f1Q Nb1 f2 Bb5 Qd3 Bb2 f1R Qc1 Na6 b8Q Qb6 d8R Rf3 d7 Nc5 Re8 Bg7 d8R Rh7 Re7 Ra5 Be8 Bh8 g7 Be6 Rd4+ Bc4 Qc7 Nh6 Qf4 c1R e6 Rd1 Qc1 Re3 Qf4 Rd2+ Ne2 Re5 Rg1 Ra4 Rg3 Ra3 Kh1 h2 Nec3 Qc2 Rg6 Nd3 Nd1 Ne1 Nf2 Qd3 Rg3 Nc2 Kg2 h1B+ Kh2 Ne1 Rg6 Ka5 Rg3 Bb5 b4+ Ka4 Rg6 Bbc6 b5+ Kb3 Bc3 Bce4 Rg3 Bg6 Bb2 Qb8 b6 Bf7 b7 Qd6 b8B Qb4 Nc3 Qb6 Rb1 a1Q Bc7 Ra7 Rg6 Rb7 Rg3 Qa3 Ra1 Qab4 Nb1 Qbc3 Raa4 Rb8 Ba1 Rb7 Rac4 Ka2 Rc5 Qba5 Rcd5 Rb3 Rb5 Qb6 Rc5 Re3 Rcg5 Re5 Rg6
2b2Qnq/6p1/NbR5/1qn1BN1b/5r2/kP3N2/B1Pr2QK/RRRq1r1b b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 e5 f4 Ke7 Kf2 Kd6 Kg3 Kc5 b6 Kb4 b7 a5 h5 d5 f6 d3 h6 d4 f7 e4 h7 d2 f5 a4 f6 d3 Kg2 g3 Rh2 a3 Rh6 a2 Qe2 d1B Nc3 d2 Qd3 e3 Qg6 e2 Kh1 e1R Nce2 g2+ Kh2 Nd7 b8N Nc5 Ng3 Ra4 Bc4 Bf3 Nf5 d1B Bf4 Rf1 Be5 Ba8 Bd5 Bh5 Nf3 Qe8 Rc1 a1Q Ba2 Qb5 b3 Ka3 Na6 Rf4 Qg3 Bd6 f8Q Bc7 f7 Bb6 Rc6 Qd4 Qg6 Qd1 Qg5 Nf6 Qg3 Rg8 h8R g1Q+ Kh3 Qgd4 Kh2 Qd8 Qg2 Bab7 Rh6 Rh8 Rb1 Ng8 Rhd6 Ba8 Rd2 Qe8 Re2 Rh6 Re1 Rd6 Rc1 Rd2 Ra1 Qde2 Reb1 Qd8 Qd6 Qd1 f8R Nf6 Rf7 Qh8 Qf8 Ng8 Rc1 Bab7 Rab1 Ba8 Ra7 Be8+ Rh6 Bec6 Nb8+ Ra4 Qe2 Kb4 N3d4 Bh1 Qg2 Bc6 Nf3 Be8 Ra5 Ka3 Na6 Bh5 Rc6 Qbe2 Rb5 Rf4 Rb4 Qb5 Rd4 Rd3 Ra1 Qd2 Rcb1 Qe1 Re4 Qc1 Re1 Qd2 Rec1 Qd1 Nb4 Rd2 Na6
2Kb2qb/6p1/1P2Br1Q/2N1Bk2/4n2q/3b2PR/QnBNq1N1/1Nrnq2R b - - 0 1 illegal: Other
B1NRN3/Q1rn1pnk/3B4/Kbq1nP2/3Q3R/1rQ5/2RbbPR1/1b1rq3 b - - 0 1 legal: proof: e4 c5 h4 b5 a4 g5 d3 gxh4 d4 cxd4 axb5 Qb6 Qd2 Qe6 Qd1 Qf5 exf5 Ba6 Nh3 Bb7 Ng1 Bc8 Kd2 a5 g4 d5 b4 e5 c4 h5 b6 d3 Kc3 d2 b7 e4 c5 e3 g5 a4 b5 d4+ Kb4 d3 b6 h3 g6 a3 g7 a2 Qe2 d1B Nc3 d2 Bg2 h4 Na4 h2 Qa6 h3 Be4 e2 Qa5 e1Q Qa6 Nf6 g8R Nbd7 b8R Ne5 b7 Ra7 Rg3 Nfd7 Qd3 Bh6 c6 Kf8 c7 Bh5 Nf3 d1R+ Kb5 Bd2 Ng5 Kg7 Nb6 Rf8 Ne6+ Kh7 Rb1 a1Q Qd4 Qc3 Rb2 Ra3 Ng7 Rb3+ Ka6 Rd8 Rg4 Qc2 Rhg1 h1B Rh4 h2 Ne8 Bf3 Rg2 h1N Ra2 Ng3 Ba3 Qc1 Bc6 Be4 Bd6 Bb1 Bf3 Qc3 Rc2 Qc6 Qb4 Qc4+ Ka5 Qd4 Ra8 Qc4 b8Q Ba6 c8Q Bb5 Qc6 Rc8 Qa7 Rc7 Rd8 Qd5 Qcc3 Qc5 Rd4 Bg4 Nc8 Nh5 Ba8 Bge2 Rf4 Ng7 Qbd4 Nh5 Rfg4 Ng7 Rh4+
3N4/1rr1P1KQ/1q1QB3/2b5/2Q1RB2/nq3q1R/1RpP1rN1/1b1bknQr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 h5 b4 a5 d6 c5 d7 f5 b6 f3 g5 f4 b5 f2 b7 a4 b6 h3 g6 f3 g7 a3 Nc3 h4 Ke6 h2 Kf7 a2 Qc2 h3 Qf5 Na6 b8Q Nf6 g8Q Nc7 b7 Nb5 Qfg5 Ng4 Q8g7 Qb6 d8Q Ne3 Qbg3 Ra7 Qd7 Rh7 b8R Na3 Nd5 Rb7 Qdc7 Bf5 Qd6 Bb1 Bb2 Qb3 Bg2 f1Q Be5 f2 Nf3 Qg1 Qg3 f1R Bf4 Rf2 Ng5 Nf1 e4 Qf3 e5 Kd3 e6 Ke2 Qh4 c4 Ne3 c3 Qcd7 Rc7 Rb2 Ke1 Kg8 Rb7 Nf7 Rc7 Nd8 Rb7 Qd5 Bc5 Q7d6 Rc7 Qhg4 Rb7 Q7g6 Rhc7 e7 Qe2 Q6c6 Bb6 Be4 Qg3 Bg5 Nb5 Nc4 Bc5 Qh7 Qd6 Qa6 Qb6 Qd6 Qd1 Bf5 Qe2 Rg1 h1B Ne3 h2 Kg7 Bf3 Bf4 h1R Qg5 Bh5 Rg3 Bg4 Be6 Qc4 Rh3 Bd1 Qg1 Qe4 Rb4 Qf3 Re4 Na3 Bg5 Bbc2 Rc1 a1Q Rb1 Qa2 Qc4 Qab3 Rb2 Bb1 Bf4 c2 Ng2#
1b4Qr/4Pqkq/3nrRr1/3bBBR1/KQ4pb/1N1nr3/3NRQP1/3n2Q1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 d4 f5 Kd2 Kf7 Kc3 a5 Kb3 h5 e4 c5 d6 g5 b6 g4 e5 c4+ Ka4 c3 b4 h4 d5 h3 d7 f3 d8R f4 b7 c2 b5 f2 b6 f3 e6+ Kg7 d6 Nh6 d7 Ra6 Kb5 a4 Na3 Bd6 e7 Nc6 b8Q Ne5 b7 Nf5 Nb1 a3 Qe2 a2 Bg5 c1R Bf4 Re1 Rf8 Nd3 d8Q Be6 Qd1 Re3 Qb6 Bd5 Rf6 Re6 Q8a7 Bb8 Ne2 Ra3 Qda4 Nd6+ Ka5 Rh6 Nd4 Rg6 Nd2 Rc3 Re1 a1B Be2 f1N Be5 f2 N4b3 Ne3 Qab4 f1Q Ka4 Nd1 Qg1 Bb2 Qaf2 Bc1 Nc4 Bg5 Ncd2 Bh4 Bf3 Rc6 Be4 Rc3 Qe2 Qf5 Qef2 Qhf4 Re3 h2 Re2 Qh5 Bf5 Qh7 Qge1 Qf3 Rf1 h1R Qg1 Rh3 Qef2 Rc8 Rfe1 Rh8 Rf1 Bc7 b8Q Qf4 Qc8 Re3 Qd8 Bb8 Qg8+ Kh6 Be4 Qf3 Rf5 Qf4 Rg5 Qff7 Bf5 Nc4 Qe1 Ba7 Be4 Nd6 Rf6 Bb8 Qef1 N3f2 Bf5 Nd3 Qc8 Kg7 Qff2 Bf3 Qd8 Bd5 Qg8+
4bBR1/Nn2pB1q/1Q1b2n1/3Rn2N/2NqP1kr/q2n3P/2KQ4/1r1N2Br b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Qg3 hxg3 Kd1 Kd7 b4 c5 d4 g5 f4 a5 e3 a4 b6 c4 b7 c3 b5 g2 f5 g3 b6 g4 f6 c2+ Kd2 a3 d6 Ke6 d5+ Kf5 f7 a2 d7 Rh4 d6 Bg7 f8B Be5 Be2 Na6 b8Q Nf6 b7 Nc5 Nf3 g1Q Bc4 g2 Nc3 g3 e4+ Kg4 Bf7 Nd5 Nd1 Nf4 Qa7 Rb8 Qb6 Qe8 d8N Ng6 d7 Bd6 Nc6 Qf2+ Kc3 g1N d8Q g2 Be3 c1N Na7 N1d3 Nd2 Bd7 Kc2 Nf3 Rg1 Nfe5 Rc1 Qf6 Nc4 a1Q Rb1 Qd4 Rb5 Qg7 Ra5 Qh7 Rb5 Rc8 b8N Nb7 Rd5 Rc5 Bf2 Rb5 Be3 Bc6 Nd7 Rb1 Nf6+ Kf3 Nh5 Kg4 Rf1 g1R Rf5 Rh1 Bg1 Bb5 Qd7 Qa8 Rg5+ Kf3 Qdd8 Be8 Qd7 Qc8 Rg2 Qcc5 Rg4 Qa3 Rg2 Ngf4 Rg8 Nfg6 Qdd8 Bb8 Qdd6 Kg4 Qdb4 Bc7 Qd2 Bd6 h3+
1n1r1Bb1/bB1Rp3/7Q/2Q1n2R/1qPK1kr1/5N1b/1Q1NP2n/Nrqb1Q2 b - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 axb5 cxd4 g4 g5 fxg5 hxg4 Kd2 f5 Kd3 Kf7 b4 Ke6 h4 Ke5 b6 a5 b7 d5 g6 g3 c3 g2 b5 f4 g7 f3 h5 a4 b6 f2 h6 a3 h7 a2 Bg5 Nf6 g8N Nfd7 Bf6+ Kf4 Nh6 Ra4 Ng4 Bg7 Nf3 g1Q Bh3 f1N Bg2 Nh2 Nbd2 Qf1 Rb1 a1R Ne3 Qf8 Rb4 Rb1 Nc2 Qg1 Na1 Ne5+ Kc2 Bd7 Qf1 Bh3 Rb3 Rg8 h8Q Rc4 Rb2 d3+ Kb3 Bh6 Bg7 d4 Qh7 Qf5 Bf8 Qg4 Qg7 Bg5 Qh6 Rc8 Kb4 Rd8 Kc5 Qh4 Ra2 Qe1 Ra7 Qh4 Qf2 Qc1 Qf1 Qhe1 Ndb3 d2 c4 d1B Nbd2 d3 Ne4 Rc8+ Kd4 Bc2 Ned2 Rg7 Ra5 Rg8 Rd5 Rd8 Rd7 Rg7 Ndb3 Qb4 Nbd2 Na6 b8Q Rg8 Qb7 Nb8 Qa7 Rg7 Ne4 d2 b7 d1B Ned2 Bh7 Qa5 Bg8 Qc5 Na6 b8Q Rg6 Qba7 Nb8 Qa3 Rg7 Qb2 Rg6 Qh5 Bf6 Qh7 Rg4 Qh6+ Bg5 Nh4+ Kg3+ Be4 Bg2 Qa5 Bf4 Bb7 Nhf3+ Ke4 Be3+ Kf5 Ba7 Qc5 Rg5+ Ke4 Kg4 Rh3 Nh2+ Nhf3 Rg7 Rh5 Bh3 Qff2 Rg5 Kd4 Kf4 Qe6 Rg6 Qf1 Rg4 Qh6+
1R1RB1R1/1N1PnQbq/1N4k1/r3q3/3pnBrQ/4Rn2/bPb2Nqn/K7 b - - 0 1 illegal: No possible last move, all moves rejected
R1Qr4/2rP4/k3q1N1/3bb1pb/rRN3qq/1Q1KR1P1/Q2QB3/q1B2nn1 b - - 0 1 illegal: No possible last move, all moves rejected
6n1/1Q1pb2k/PB4BB/RQ4q1/K1B2P1Q/2rrqN2/2rqb1RN/2qb1n2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 f4 e5 a4 b5 h4 g5 c4 Kg7 Kc2 d3+ Kb3 d2 a5 e4 h6+ Kh7 f6 g4 f7 g3 h5 e3 c5 g2 c6 e2 c7 e1Q Rh2 Nc6 Qe2 Ba6 c8B Qg5 Bb7 Ne5 Nf3 g1Q Rg2 Be7 f8B Ng4 Nh2 Rc8 Bd5 d1R Nd2 Ne3 Bf7 Rc2 Ndf3 Qd2 Bb2 Rdc1 Bd4 Qf2 Qc4 Qfg3 Be2 Nf1 Qc8 Rd1 Qb7 Qge1 Bec4 Qde3+ Bc3 Rd3 Bg7 Q1c1 Bd4 Qcd2 Bb6 Nf6 Ra2 Rc8 Bg6+ Kh8 Be4 Rd5 h7 Qg7 Bcd3 Ng8 Rb2 Rc4 Bcd4 Qf6 Bg6 R4c3+ Ka2 Rd6 Be5 b3+ Ka3 Kg7 Ra2 b2+ Kb4 b1B Be2 Rc1 Bed4 Bd3 Ra4 Bc2 h6+ Kf8 Ra2 Bd1 h8Q Qf5 Qe5 R1c2 h7 Qg5 Qc5 Rd5 h8Q Rd6 Qh5 Rd5 Ne5 Kg7 Qh4 Rd6 Bgh5 Kh8 Nef3+ Kh7 Bg7 Rd5 Bh6 Rd6 Bc4 Rd5 Bb3 Rd6 Ka3 b4+ Ka4 Bd3 a6 B3e2 Bc4 b3 Kb5 b2 Ra5 b1Q+ Ka4 Rdd3 Qb5 Qbc1 Bg6+
n1BB1k2/2P1Br2/bqq1n1bP/4KN2/5N2/1pBRN2Q/2rn3Q/1nq1b2R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 e5 Kd3 b5 Ke4 g5 f4 g4 h4 b3 c4 b2 a4 d3 a5 b4 f6 d2 h6 b3 h5 g3 c5 g2 c6 Rh7 c7 Ne7 a6 Ng6 a7 Rf7 f5 Nf4 h7 Bb4 h8B Ba6 h6 Kf8 Bc4 Qe8 Qf1 d1Q Na3 b1N Be6 Be1 Nh3 g1Q Nc4 Qb6 Ne3 d6 Bd2 Nd7 Bc3 Qc1 Ra4 Rd8 Rd4 Ra8 Rd3 d5+ Kf3 Rd8 a8Q d4 Qb7 Ra8 Ke4 Ra7 Qf2 Qa8 Qd5 Qac6 Qh2 Ra8 Ng1 Re8 Ne2 Ree7 Ng3 Re8 Rd1 d3 Qh3 d2 Qh2 Nb8 Bc8 Ne6 Qh3 Nd7 Qh2 Rfe7 f7 Rd8 Bf6 Rde8 Kf3 e4+ Kg4 Rd8 Qd3 Rde8 Qf1 Rd8 Qfh3 Rde8 Nc4 e3 Bg5 e2 Ne3 Qbb7 Bh4 Nb6 Bhf6 Na8 Bg5 Ng7 Kf4 Ne6+ Ke5 Qbb6 Bf6 Rd7 Bd8 Qb2 Rc1 d1B Rc2 Rde7 Rd2 Bc2 Rd3 Qc1 Rd7 Ng7+ Kf4 Bf2 Rd2 e1N Ng2 Re2 Ne3 Re7 Rd7 Be4 Rd3 Rd7 Ke5 Rc2 Bh4 Rd6 Bg5 Rf6 Bh4 Ke7 f8N Ne6 Ng6+ Ke8 Nf4 Rf8 f6 Bg6 Ngf5 Kf7 Rd5 Nf3+ Ke4 Qe8 Rd3 Nfd2+ Ke5 Qec6 Bg5 Be1 Bh4 Kg8 Bg5 Rf7 Bh4 Re7 f7+ Kh7 f8B Rf7 Bd8 Kh8 Bg7+ Kg8 Bgf6 Kf8 Bfe7+
3kqn1K/q1prb3/b1QN1r1n/bn1b1Q2/1Q2P1N1/1R3R2/r1B2P1N/2BN4 b - - 0 1 illegal: No proof kernel
1qknB3/1NprB3/N1Q5/n1Kn2r1/B2P1qB1/1RR2bN1/q1P1b3/1rnQ4 b - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ng8 Ke2 Kd7 d4 e5 b4 h5 g7 f5 b6 a5 b7 h4 b5 h3 b6 h2 g6 e3 Kd3 f3 Kc4 e2 Bg5 e1Q Na3 f4 Ne2 e4 Nc3 e3 Qd3 a4 Ncb5 f2 Ra2 f3 Be2 f1B Bh4 f2 Rg1 h1R Rb2 Qa1 Kb4 Rh7 Nd6 Nf6 g8B Qa2 g7 Nd5+ Kc5 Ra5+ Nab5 a3 Bf7 Nc6 b8Q Bb7 Qa8 Qb8 g8B Nd8 Ne4 Kc8 Be8 Rd7 Bg4 e2 Ng3 e1N Qd1 Be2 Rb3 f1Q Be7 Qf4 Rf1 Bc6 Rff3 Bb7 Rfc3 Nd3+ Kc4 Nc1+ Kc5 Qb1 Bgf7 a2 Bg6 a1N B6h5 Ba6 Qc6 Qa2 Bhf7 Bf3 Bg8 Qa8 b7+ Kb8 Ra3 Nb4 Qf1 Ne2 Bb3 Be4 Ba4 Nb3+ Kc4 Bf3 Qg2 Rb1 Qg1 Nec1 Qf1 Nd5 Qd1 Nb6+ Kb4 Qa7 Nd6 Rg5 Nge4 Na5+ Rab3 Qa8 Ng3 Bae2 Be6 Ka7 b8N Nd5+ Kc5 Qb7 Na6 Ka8 Nb4 Kb8 Bg4 Qa8 Nb7 Kc8 Na6 Qa7+ Qb6 Qb8 Qc6
1N2q1q1/1Bp5/6Pq/R1P1br2/1NrrbR1k/n1n1bBN1/5N2/1BrQ1Q1K b - - 0 1 legal: proof: f4 b5 g4 g5 a4 e5 axb5 h6 d4 Bc5 dxe5 Bd6 Bd2 Bf8 Bb4 Nf6 Be7 gxf4 g5 Ng8 g6 Rh7 Bh4 Rh8 Bg5 hxg5 Kf2 Ke7 Kg2 f5 e4 a5 b4 d5 h4 g4 c4 f3+ Kh2 d4 c5 a4 e6 Kf6 h5 Kg5 e7 f2 e8B g3+ Kg2 d3 b6 f4 h6 d2 b5 a3 b7 a2 b6 Nf6 h7 Na6 b8Q Nd5 e5 Bd6 e6 f3+ Kh3 g2 b7 Rf8 h8N Nab4 Na3 Nc3 Bc6 Nc2 Bd3 f1R Ne2 g1B Ng3 f2 Kg2 Qe8 e7 Ra4 Rh4 Rc4 Bf3 Rf5 Rf4 Be5 Kh1 Re1 Qa8 f1Q b8N Bb7 Qa6 Be4 Qb5 Qg8 e8B Qe2 Bc6 Qe3 Bb7 Rf1 Qe2 Rc1 Qd1 Qe2 Qb1 Be3 Qf1 d1R Nf7+ Kf6 Nh6 Kg5 Ng4 Kh4 Nb5 Na3 Nd4 Qd2 Ndc6 Qe1 Bc2 Rdd4 Nb4 Qd2 Bd3 Qe8 Qc2 Qg8 Qcd1 Qe8 Rb1 a1Q Rb3 Qaa2 Bb1 Nab5 Rb2 Qa8 Ra2 Na3 Ra1 Qg8 Nd7 Qaf8 Nb8 Qh6 Ra2 Qc2 Ra1 Qa4 Ra2 Qae8 Ra1 Nc2 Ra5 Na3 Nf2+
1B1Bk1b1/1P1n1P2/1B5n/1K4bb/rR2Bqqr/r1bN4/2R1nNQp/3Q3N b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 c5 b4 h5 d4 e5 g4 a5 f4 c4 b6 e3 d6 e4 g5 h3 d7+ Kf7 d5 h4 b7 h2 b5 c3 d6 c2 f5 h3 b6 a4 f6 a3 Ra2 Ra7 Nc3 Qc7 d8N+ Ke8 g6 Nd7 b8B Rh4 b7 Bh6 g7 Bg5 Nf7 Ra4 Ne5 Nh6 Nd3 Qc4 Rb2 a2 Rb4 a1R Bg2 R1a3 Bd2 c1Q Be1 Qe6 Bf2 Qg4+ Bf3 Nf8 g8Q Be6 Qg7 Bg8 d7+ Kd8 Kf1 e2+ Ke1 Qcf4 Bb6+ Qc7 Kf2 e1B+ Ke2 e3 Ne4 Bd2 Ng3 Bc3 Kf1 e2+ Kf2 e1N Ke2 Qf5 Be4 Ng2 Qg6 Nf4+ Ke3 Be1 Kd4 Qg4 Qg7 Bf7 Qg8 Bh5 Qd5 Bd2 Qc6 Bc3+ Kc5 Ne2 Kb5 Nh7 Nf2 Nf8 Nf3 Ra6 Re1 h1B Ne5 h2 Ned3 R6a4 Rg1 Bf3 Rg2 Bf7 Ngh1 Bh5 Bh7 Bd5 Be4 Bg8 Nh3 Ng3 Rc2 Ne2 Nh3f2 Be6 Bg6 Bf7 Qg2 Bg8 Bd4 Qd6 Be4 Qdf4 Bb6+ Qc7 Bc5 Qcf4 Bba7 Kc7 d8B+ Kd7 Bcb6 Ke8 Bb8 Nd7 f7+
r1NN4/1PpR2Qq/NQ5n/1bqBBk2/1b4r1/nN4P1/1K1b2n1/2RR1rb1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 Kd2 Kf6 Kc2 e5 f4 h5 b4 a5 b6 a4 b5 e3 g3 h3 f5 e2 d6 e1B b7 e4 b6 a3 d7 a2 d5 h2 d6 e3 Ba3 e2 Kb2 h4 Qb3 h3 Nf3 Na6 b8N Qe7 d8N Bd7 b7 Bb5 d7 Qc5 Nfd2 Nb4 Nc4 Nc2 Na6 Nh6 Nbd2 Rg8 Nd6 Rg4 Rd1 Bf2 Qb4 e1N Nb3 Ng2 Bc4 Bg1 Nc8 Be7 Bd5 a1B+ Kc1 Bc3 Bb2 Kg5 f6 Na3 f7 Kf5 Qa5 Bd6 Qb6 Bb4+ Bc3 Bf4+ Kb2 Bd2 Bh8 Bf2 Rhg1 h1R Be5 h2 Rge1 Rf1 f8Q+ Nf7 Qg7 h1Q Rc1 Nh6 Red1 Qh4 Ne6 Qh5 d8R Bg1 Rd7 Qf7 Nd8 Qg6 Qc6 Qh7 Qb6
2bB1nRq/1pr5/1K2kQqQ/rN4B1/1Qb2n2/3qPQ2/P2R4/rBb1N1r1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 d4 g5 h4 f5 h6 c5 h7 g4 d6 g3+ Kf3 g2 d5 c4 h5 c3 h6 b3 Rh2 b2 Na3 b1Q Nb5 c2 Qd4 Nf6 Qb4 Rg8 h8Q Ra5 h7 Nh5 Qhc3 Bh6 h8Q Rg7 Bd2 Bg5 Qh6 c1R Kf2 Rf7 Nf3 g1R Ne1 Qh8 Qf3 Qd3 Rb1 Rd1 Rb2 Ra1 Rg2 Qe4 Be3 Qe6 Rd2 Qg6 Qg4 f3 Rg3 Bf6 Bg5 Nf4 Ke3 f2 Qf3 Bb2 Bh3 Ba3 Bg4 Rg7 Kd4 f1Q Kc5 Bc1 e3 Qd3 Bh5 Ng2 Kb6 f4 Qfe4 f3 Bg4+ Qe6 Bf5 f2 Qf3 f1B Bh7 Nf4 Rgg2 Qb3 Bb1 Bc4 Rg4 Qd3 Rg3 Qee4 Rg4 Ke8 d7+ Kf7 d8B Qg6+ d6 Ke6 d7 Rh7 Bde7 Rg7 d8Q Rh7 Qd4 Rg7 Bd8 Nd7+ Kc7 Nf8+ Kb6 Rc7 Qf6+ Kd7 Bh4 Qgh7 Rg8 Q7g7 Qfc3 Qg6+ Bhf6 Ke6 Bg5 Qh7 Qcg7 Qh8 Qf6+
4R1BN/1p2qbK1/1k1B1PNP/R4R2/nq3N1Q/3q1nQ1/4q2n/1Rrbb1r1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 g5 Kd4 e5+ Ke4 c5 d4 Kc7 h4 c4 a4 c3 f4 g3 f6 g4 f5 b3 f7 b2 a5 c2 a6 g2 a7 g3 h5 Na6 h6 Kb6 d6 Be6 d7 Qe7 d8N Rc8 Bf4 c1Q a8R Qc4 Nc3 b1B+ Qd3 Qcb4 Ra5 Bc2 Nce2 Bd1 Nf3 g1N Nh4 g2 Ng6 Rc1 Qg3 Nf3 Rc8 Bg7 f8R g1Q Nf7 Qh2 Rfe8 Qh3 Rcc5 Rh7 Nfh8 Bf7 Rg1 Bf6 Bg2 Rg7 Re1 Bh4 Bh1 Qa3 d5 Qf1 d6 Qb4+ Ke3 e4 d7 Qh3 Bd6 Nf6 Kf4 Ng4 f6 e3+ Kf5 Rg8 Nef4 e2 Rf1 e1Q d8Q+ Nc7 Qd7 Nd5 Qa4 Nc3 Re5 Qe2 Re1 Nd2 Bd5 Nh2+ Qg4 Qbc4 Ng2 Ra1 Nf8 Qhd3+ Re4 Bh5 Bf7 Rg7 Bg8 Bb3 Qg5 Bf7 Rd1 Qdd4 Ree5 Be1 Qa3 Qcd5 Qh4 Qb4 Nf4 Rg1 Rc1 Bd1 Qb3 Nb5 Qbg3 Qdd3+ Kg5 Nc3 Rf5 Bc4 Kg6 Bf7+ Kh7 Ndf3 Kg7 Na4 Nf8g6 Rb1 Rc3 Ra1 Rb3 Rc1 Rb1
Q5r1/Kpbr1qq1/QPb4k/B5RP/QN5Q/1R1r3N/n3R1bB/r2q3n b - - 0 1 legal: proof: e4 d5 b4 f5 exf5 h5 c4 a6 cxd5 Nf6 g4 hxg4 b5 Ng8 b6 Rh3 Be2 Rh8 Bb5+ axb5 Ke2 Kf7 Ke3 c5 a4 e5 f4 g5 d4 Kg7 h4 g3 a5 c4 f6+ Kh6 f7 c3 d6 g2 a6 b4 d5 g4 f5 g3 d7 c2 a7 b3 d6 e4 Kd4+ e3 Kc5 b2 h5 Qe8 d8Q Ne7 f6 Rg8 d7 Nbc6 Rh2 Nb4 Ra3 Na2 Nc3 b1B Nh3 g1Q Rb3 g2 Bd2 c1Q Kd6 Nf5+ Kc7 Ng3 Qe2 Qb2 Qa6 Be4 Nd5 Nh1 Ba5 e2 Nb4 e1R Qe7 Bg7 f8B Qf7 d8R Bc6 Rd5 Rd1 Rg5 Rd3 Qd7 Qe1 Bd6 g1R Re2 Qd1 Bh2 Bg2 Qe7 Bd7 Qd8 Rb8 a8Q Bdc6+ Qe7 Rbf8 Qe8 Bh8 Kb8 Rg7 Ka7 Rfg8 Qe4 Rh7 Qh4 Bg7 Rc5 Bf8 Rd5 Bd6 Rg5 Bc7 Qee4 Qe5 Qec4 Re1 Qcb5 Qee7 Qa4 Qg7 f7 Rg1 f8Q Qf7 Rb1 Qe8 Qb3 Qc1 Qff2 Qa1 Nc2 Rhd7 Qf8+ Qg7 Qba4 Qf7 Nb4 Qc2 Rb2 Ra1 Qa8 Qd1 Rb3
b5N1/PB1nRK2/b4Q1r/Pq2q3/b1nBQRrr/7k/3N3p/qQb2BB1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Kg4 h5+ Kf5 b5 e4 b4 g4 b3 d4 b2 a4 f3 g5 c4 e5 h3 d6 c3 d5 h2 a6 f2 a5 c2 a7 h4 g6 h3 g7 Qe7 Qd4 Rh6 Qh4 Bb7 Qa4+ Nc6 Qa2 Nf6 Nc3 b1B Bb2 c1Q+ Ne4 Bc2 g8B Ba4 Nf3 Qb1 Rg1 h1R Bd4 Qb5 Re1 h2 Rg7 Rg1 Nfd2 Rg4 Qb1 Rd8 Re3 Ba8 Rf3 Rhh4 Rh7 Bh6 Rf4 Bg5 Rg7 Rh6 Bh7 Rh8 Bg6 Rhh4 Bh5 Rh6 e6+ Kc8 Rh7 Nd7 Nf6 Nce5 Ng8 Nc4 Bg6 Qe8 e7 f6 Ke6 f5 Nf6 Qh8 Ng8 Qe5+ Kf7 Qc6 Rf3 f4 Be4 Qb5 e8Q+ Bd8 Bh3 f1Q Qe6 Qh1 Bf1 Bg5 Rf2 f3 Qf6 Nb8 d7+ Kc7 d8B+ Kd7 d6 Bf4 Rg2 f2 B8b6 Qg1 Bb7 Qh1 Be2 f1B Rf2 Be3 Rf4 Qg1 Nb3 Bc1 Nd2 Qh1 Qfg6 Qg1 Qge4 Qh1 Kf8+ Ke6 d7 Qg1 Bd3 Be2 d8Q Nd7+ Ke8 Qe1 Nf3 Qc3 Nd2 Qa1 Bg1 Bf3 Bf1 Be2 Qec2 Bd3 Bbd4 Be2 Re4 Kf5+ Re7 Bd3 Kf7 Qbc5 Qbb3 Rf4 Re8 Kg4+ Qf6 Ne3 Be2+ Kh3 Qbb1 Rfg4 Re7 Ba6 Rf4 Qb5 Qe4 Nc4 Bf1+
1n3rnq/PbQRN1B1/2Qb1Qb1/p3N1q1/Kb1k2r1/2rNq3/1P6/1Q3BR1 b - - 0 1 illegal: No proof kernel
2n4R/PQ1Nn1qp/nQP1Rr1q/5B1N/2b5/kr2B1B1/1b4bK/2Bnr1Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 b5 a4 d5 g4 Kd7 f4 Kc6 Kf2 Kc5 Kg3 e5 g6 b3 f6 Kb4 g7 e4 f5 b2 f7 d3 c5 d2 c6 d4 g5 e3 a5 e2 f6 e1Q+ Kh2 d3 a6 Qde7 g6 Q1e6 Na3 b1B Ne2 Ba2 Nf4 Bc4 Bh3 Qa7 Qe1 Ne7 g8Q Bg7 Qe3 d1R f8B d2 f7 Bb2 g7 Qh6 Nh5 Re1 Bf5 d1N Qb6 B8e6 Rg1 Bed5 Rg6 Bg2 Re6 Kb3 Rb1 Nc8 Bc5 b4 f8B Qb7 a7 Na6 Bd4 Rb8 Qf7 Rg8 Bfc5 Rf8 g8Q Qe7 Qfg7 Rf6 Bd6 Ka4 Bde3 b3 Bg3 Qf7 Q7f8 Qfg7 Qe7 Rb7 Nb5 Rb8 Nd6 Ka3 Ne4+ Nd6 Qec7 Qgg5 Bgf2 Bgf1 Bg4 Qgg6 Qe8 Qgg7 Qd4 Rb6 Qeb8 Bg2 Bg3 Rb4 Bcd2 Bc3 Nc5 b2 Bg5 Qg8 Qg1 Qgg7 Bge3 Rb5 Bf5 Rb7 Rc1 b1N Nd7 Ba1 Qbc8 Nbc3 Rb1 Nd5 Rb2 Ne7 Bc1 Rb5 Rb4+ Bb2 Q8d8 Rd5 Rb8 Rb5 Qb7 Rb4 Qdc7 Rb3 Rh8 Ndc8 Qcb6
B2nB2r/p2k2R1/1Q1b2Q1/1q2R1N1/r1b1q1n1/2Nn3r/PPQ1Q3/n1N2K1b b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 f4 g5 fxg5 h6 g6 Qf6 g7 Qd8 g4 Bd6 g5 Ba3 g6 Bf8 Bg5 hxg5 e4 d5 h4 c5 e6 f5 e5 c3 h5 g4 h6 d4 h7 g3 e7 g2 Rh4 c2 Bd3 c1N Qd2 c4 Qc3 f4 Be4 f3 Kf2 d3 Qa5 d2 Rh5 d1Q Qa3 c3 Rf5 c2 Qa5 Nf6 g8Q Qb6+ Qc5 Bb7 g7 Kd7 Ne2 g1R Qc4 Qd5 g8Q Rg4 Nbc3 Nd3+ Kf1 c1N Qg6 Qb5 Qb6 Nb3 Nc1 f2 Rg5 Nc6 e8B+ Kc8 e6 Bd6 Bg2 Qe4 e7 Rh4 Rc5 Ng4 Re5 Rb8 Qa4 Nd8 Rb1 Na1 Qc2 Rh3 Bf3 Rf8 h8N Rf4 Nf7 Bc6 Ng5 Bd5 Kg2 f1B+ Kg1 Be2 Bh1 Bf3 Kf1 Bc4 Bf7 Ngf2 e8Q Rfh4 Qe7 Ng4 Be8 Rh8 Qe3 Rb6 Qef6 Ra6 Qee2 Bc5 Qb6 Bd6 Nb3 Ra4 Rd1 Qf5 Nc1 Ba8+ Bf3 Qe4 Bg2 Nb4 Rdd5 Nd3 Re7 Bc6 Rg7 Ba8 Re5 Bad5 Bf7 Kd7 Bh1 Bb7 Bf3 Bbd5 Be8+ Kc8 Bh1 Qe3 Bf7 Kd7 Be4 Ba8 Bb7 Qd4 Ba6 Bh1 Bb7 Qe3 Ba8 Qe4 Be8+
Q1r1Q3/p3N1Nb/2rn3B/B2KR3/1b1P4/1Rrkb1qB/PB2nq2/qQ3b2 b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Ke7 e4 Kf6 h4 Ke5 d3 Kd4 c6 f5 e5 b5 c7 g5 d6 b4 e6 f3 h5 g3+ Ke1 f2+ Ke2 b3 Kf3 f4 d7 g2 h6 b2 e7 g4+ Ke2 f3+ Kd2 g3 e8Q Bb4+ Nc3 b1Q h7 Nf6 Qa4 Nc6 Nh3 g1R Qc2 g2 Ng5 Qb3 Rh3 Ne4+ Kd1 Qf7 Nd5 Nd6 Qb1 Qdf6 Kc2 Q7g7 d8B Bf5 Kb3 Rc8 Rg3 Rf8 h8B Bh7 Ne7 Rh1 Nf7 g1B Ng5 Rh6 Bh3 f1B Bb2+ Ke3 Ne6 Rg8 Rg5 f2 Ra5 Kd2 Re5 Qg3 Bg7 Qff4 Bf8 Rf6 Ng7 Nd4+ Ka4 Ne2 Kb3 Ne4 Kc4 Rc6+ Kd5 Nd6 d4 Qfe3 Qe1+ Kd3 Rb1 Qc1 Ba1 Rc3 Rb3 Qd1 Bb2 Qa1 Ne6 Rg6 Bh6 Nc4 Ng7 Rc6 Re6 Nd6 Re4 Ra8 c8Q Rb8 Qb7 Rbc8 Qb8 Bg2 Qa8 f1Q Bb6 Be3 Ba5 Qff2 Qc1 Bf1 Re5 Qgf4 Qe1 Q4g3 Qb1+
bR3k1r/pq1B1NN1/n1Rr1B2/2Nr1nP1/3b4/1nqNb3/2r1Q1P1/1KR2Q2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 h5 c4 d5 Kc2 e5 f4 h4 b4 e3 f5 e2 f6 e1N+ Kb2 h3 c5 e4 b6 h2 c6 e3 b7 e2 c7 d3 b5 d4 b6 d2 Qc2 d1R Nf3 d3 Nbd2 Qd7 Kb1 Bg7 f7+ Kf8 Nb3 d2 Nc5 Nh6 Ne5 Nf3 Ra6 e1B Bb5 Bf2 Ned3 Nf5 Qa2 Qd5 Bd7 Bgd4 Rf1 h1Q Qc2 Kg7 f8N Bfe3 Nfe6+ Kg8 Re1 Qh3 Ng7 Kf8 Qa2 Qb3+ Qb2 Qc3 Qb5 Qh7 Qb2 Nc6 b8Q Nb4 Qb7 Rb8 Qd5 Ra8 Qc4 Bb7 c8N Be4 Nd6 Rc8 Qba2 Ba8 b7 Rc7 Rc6 Na6 b8R+ Rc8 Nge8 Qe7 Nf7 Qe4 Rcb6 Qb7 Qb2 Rc6 Rg1 Rd6 Rc6 Re1 Qcb5 d1R Qe2 Rd2 Qf1 Ree2 Bb2 Rf2 Qe2 Rc2 Rc1 Nd2+ Ka1 Nb3+ Kb1 Rf4 Qf1 Re4 Ng7+ Re8 Qc4 Rd8 Qe6 Bg1 Qee2 Bgf2 Ba3 Bfe3 Bb4 Rd5 Ba5 Rd6 Bc7 Rd5 Be5 Rd6 Bf6 Rd5 Be8 R8d6 Bd7+
QBKbq1BR/p2nN3/k5Rr/1q4P1/r1R2R1N/Q5qB/1qP1r3/2nb2n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kf3 Kb6 b4 h5 e4 f5 g4 h4 e5 h3 e6 h2 g6 d3 g7 d2 e7 d4 e8B d3 g5 Nf6 g8R Ne4 Bg2 Nc5 Ne2 Nb3 Qf1 d1R Bf7 d2 Ra4 Be7 Bh3 Be6 Rg1 Nd7 Nd4 Rh6 Nc6 Qf8 Bb2 Re8 Rg4 h1Q+ Qg2 Bc4 Be5 Qg1 Rh8 Bd3 Qg3 Bd8 Bg8 Re7 Bd6 Qe8 Bc7+ Kb7 b6 Re4 b5 Rde1 Rh4 Nc1 Ne7 Qd4 Rb4 Qb2 Rd4 Bf1 Rd6 Ra4 Rg6 Ne2 Bd6 d1Q Nd2 Qda1 Be5 Qaa2 Bd6 Nc1 Rg4 Qc4 Be5 Qc7 Rh4 Kb8 b7 Qd6 Rg4 Kc7 Rh4 Kb6 b8R+ Ka5 b6 Ka6 b7 Be2+ Kg2 Bh5 Qa3 f3+ Kg3 f2 Rc8 f1Q b8Q Bd1 Qa8 Qfb5 Nf3 Re3 Rcc4 f4+ Kf2 Re4 Rg4 Re3 Nh4 f3 Kg3 Re1 Kf4 Re2 Bf1 f2 Kf5 Nc5 Bg2 f1N Bh3 Nd2 Rgd4 Nf3 Re4 Qdc6 Rf4 Ng1 Bd6 Qf3 Bb8+ Bb6 Bf1 Qg3 Bh3 Ne4+ Ke6 Nc5+ Kd5 Nd7+ Kd6 Bd4 Kc7+ Bf6 Nc6 Bd8+ Kc8 Kb6 Ne7+ Ka5 Bd6 Ka6 Bb8+
6B1/1QKbQ2N/1n1nr3/nbP3N1/1bQq1p2/BN1bbPR1/1b4Q1/2r1k1R1 b - - 0 1 illegal: No possible last move, all moves rejected
2n1NkRQ/2Qnb3/1r1P3B/1R1nQr2/N1nqR2P/2r4B/Qp2b2n/5n1K b - - 0 1 illegal: No possible last move, all moves rejected
2QQrBbQ/3Pbb2/b3P2r/4p1q1/Bn2k3/2N2N2/1R5r/R1bQKbRn b - - 0 1 illegal: No proof kernel
1r2RK1R/1PrN3B/1nNNQ3/4qn2/3B1P1Q/bB2pr2/n2r2kB/2rr1b2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kf4 h5 Kg5 Ke5 Kg6 Kf4 Kf7 a5 g4 c5 b4 e5 d4+ e3 f3 Kg3 b6 e2 f4 e1R b5 c4 b7 c3 d6 a4 b6 c2 d5 e4 g5 e3 d7 h3 g6 h4 d6 a3 g7 a2 Na3 h2 Bc4 h3 Nb5 Ra7 Qd5 Rd1 Qe6 Qc7 Ne2+ Kg2 Bb3 Rd2 Bb2 c1N Bd4 Ne7 d8Q Nf5+ d7 Ba3 g8B Qe5 Bh7 Rg8 Rb1 a1R Qh4 Na2 d8B Nd7 b8N Ba6 Nd6 Rc7 b7 Rh8 Rbc1 Nb6+ Nd7 Rb1 Rc5 Rc1 Ra5 Bc4 Ra8 Rf1 Be7 Rf3 Re8 Bd3 Qhh6 Rg8 Bh4 Bc4 Bg3 Bd3 Rf1 h1R Qh4 h2 Rd1 Rg1 Rf1 h1R Bh2 Bb5 Rc1 Rgd1 Rc5 Rg7+ Kf8 Rc8 Rc1 Rb8 Rcc8 Rhg1 Bb2 Rge1 Nd4 Bf1 Nc6 Rc1 Bd4 Red1 Nf6 Rc7 Nd7 Bb4 Kf7 Bc5 Rh8 Bb4 Rce8 Ba3 Kf8
3n2RB/6bn/q1Rr3Q/1B2NRbb/N1rpQ1R1/Pb5b/3k2P1/2Qq1bK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 f4 e5 Kf2 b5 c5 h5 f6 Ke6 c6 Kd5 a3 Ke4 f5 d5 f7 h4 f6 b3 g6 b4 c7 b2 g7 h3 Qa4 h2 Qd1 d3 Be2 b3 Qf1 d2 Bb5 d1B Bd7 d4 Bf4 Ra6 Nh3 Rd6 Bg3 Bh5 Bf4 Nc6 Qe1+ Kd3 Bg4 e4 Ra2 e3+ Kf1 e2+ Kf2 Bf5 c8Q Qb6 Be5 Qa6 Ng5 Nd8 Nc3 b1B Rc2 b2 Na4 Ba2 Nf3 b1B Rc6 Bb3 Qc7 Bc8 Bd7 B1a2 Qc1 e1B+ Kf1 Bh4 Qb7 Bg5 Kf2 Nh6 g8R Bg7 f8R Ng4+ Kf1 Rh7 f7 Nf6 Kf2 Rh8 Re1 h1Q Re4 Rh6 Rg4 Nh7 Be8 Qd1 Bf6 Qd2+ Kg1 Bc4 Qa8 Bab3 Ne5+ Ke3 Qb7 Bf1 Qe7 Rg6 Qe6 Ke2 Qf5 Qd1 Qfb1 B7h6 Bh8 Bg7 Bd7 Rgf6 Qg6 Rf3 Qe4+ Re3 Rb6 Ke1 Bb5 Bf5 Rc6 Re2 Rf4 Bh3 Rg4 Re3 Re8 Re2 f8Q Re3 Re7 Re2 Rf7 Re3 Qeb1 Rc3 Rf5 Rc4 Qf6 Ke2 Qh6 Ke1 Qf4 Ke2 Qfe4+ Kd2 Qc1+
nN3Qq1/2nQq3/2bk1n1r/2b2R1n/2P1nNPB/8/Bp2NBKn/r1N3R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 b5 g4 e5 f4 Ke7 Kf2 d5 a4 h5 a5 h4 g6 d3 g7 e4 f6+ Kd6 f5 e3+ Kf3 d4 f7 h3 a6 e2 f6 e1Q a7 b3 Ra5 d2 Nc3 b2 Qc2 d1N Qg2 b1N Qa2 h2 Nge2 b4 Bh3 b3 Rf1 h1N Rf5 d3 Be3 b2 Nc1 d2 N3e2 Bd7 Bf2 Ndc3 Rg1 d1N Bg2 Na6 Qa4 Ne3 Qb5 Be7 f8N Ng3 f7 Nc7 Ne6 Rh6 f8B Nf6 g8Q Na3 N6f4 Nce4 Bg7 Qe8 Qf8 Nef1 Bh1 Qd8 Kg2 Nh2 Bh8 Ngh5 Bh4 Nfe8 Bd4 N8f6 Bdf2 Bc6 Qb7 Nab5 Qc8 Rb8 a8N Rb7 Nb6 Ra7 Nd7 Ra1 Nb8 Na8 Qf7 Qg8 Qcf8 Kc7 Qd5 Ba3 Qd3 Qb4 Qd4 Qe7 Qd1 Bc5 Qd6+ Kb6 Qd7 Nbc7 Nh3 Bd5 Nhf4 Nc3+ Kh3 Bb7 Bc6 Nce4 Ba4 Bd5 Bb3 Bb7 Qd4 Bd5 Kg2 Kb7 Na6 Kc6 Ba2 Kd7 Qd1 Kc6 Qa4+ Kd6 Nb8 Bb7 Qae8 Bc6 Qd7+
Br1N4/7N/rQ1Qbq1B/3r1n1p/r3bN1R/P4P1R/4K2Q/bb1Nn1rk b - - 0 1 illegal: No possible last move, all moves rejected
r1r3rq/6q1/BQBb2Rr/1n2p3/1Q3nBB/2PQ2Pb/K1Rr3N/1N4kr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 f4 h5 a4 d5 f6 Kg6 a5 Kf5 g6 Ke4 f5 b5 c3 e5 Kc2 d3+ Kb3 d4 a6 h4 f7 d2 f6 Ke3 a7 Kf2 g7 d3 g3 h3 Qh5 d1Q+ Kb2 b3 Qh4 d2 Ra4 b4 Nf3 h2 Ba6 Rh6 Ra3 Bd6 f8Q Ne7 g8B Bh3 f7 Nd5 Bb5 Nf4 Qg7 Nc6 f8Q Nd4 Ba6 Nb5 Qb7 Qe7 Qc7 Qg7 Ra2 Kg2 Rf1 h1R Nh2 Qh5 Be6 d1R Qfd8 Rd2+ Ka1 Qe8 Qb6 Qeh8 Rc2 b2+ Ka2 Rc8 Rf2+ Kg1 Bg4 Ra8 Qd7 Rg8 a8B Rc8 Na3 b1R Bc6 Rb3 Nb1 Ra3+ Kb2 b3 Qdd8 Bb8 Qd3 Bd6 Qe7 Rg8 Qeb7 Ra4 Qb8 Rc4 Ka1 b2+ Ka2 Nc7 Qb4 Nb5 Qb6 Ra8 Bcd7 Rcc8 Bc6 Re2 Be3 Rd2 Bc5 Bc7 Be7 Bd6 Na3 b1R Bh4 Rb3 Nb1 Rg8 Qa4 Rb4 Qa3 Rc4 Qb4 Nh5 Rf6+ Rc5 Q6a5 Nf4 Rg6 Rc4 Bd5 Rc7 Bc6 Rcc8 Qb6+
1nk2B2/1r5Q/2Q1n3/b1P3bp/BR3N1r/2K1n1bb/2n2N1P/nNqB1R1B b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 d4 Kd7 Kd2 f5 c4 e5 g4 a5 d5 a4 d6 f3 b6 a3 b7 f4 g5 a2 g6 f2 g7 e3+ Kc2 e2 Be3 e1B Nh3 e4 Rg1 f3 Qd3 Nf6 g8B Bh6 Rg4 Ne8 Bg2 f1N Nf2 Nc7 Bh1 Qg5 c6+ Kd8 d7 Ra7 c5 Ne6 Bf7 Ba5 Be8 Kc7 Bd2 e3 d8N e2 Rb4 Ne3+ Kc3 Nc2 Qe4 Qg1 Bg5 Qf1 Be7 Bg5 Bf8 Qc1 Bh5 h6 Qh7+ Bd7 Nf7 Bc8 Ne5+ Bd7 Ned3 e1B+ Nd2 Kd8 Nf4 Bc8 Rb1 a1N Be8 Ng7 Bh5 Bh3 c7+ Kd7 c8B+ Kc7 Qf5 Ne6 Bd7 Kd8 Ba4 Rh7 N2d3 f2 Bd1 f1N Nf2 Nfe3 Qe4 h5 Qc6 Rc7 Ne4 Bg3 Nf2 Nb3 Ra1 Rd7 Nb1 Rd4 N4d3 Rg4 Nf4 Rh4 Qf3 Nc6 b8Q+ Kd7 Qe5 Kc8 Qf5 Rb7 Qh7 Nb8 Qc6+ Rc7 Bdf3 Qe1+ Nd2 Qd1 Rc1 Nba1 Nb1 Qe1+ Kb2 Qd2 Rf1 Qd1 Kc3 Qc1 Qa6+ Rb7 Bd1 Be7 Qb6 Bg5 Qc6+
1K5N/N1Br3n/1R1N4/rp4bb/kPBP4/Bnn3b1/1Q1nbbR1/4QBq1 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 cxd5 f5 exf5 a4 Qb3 axb3 d4 Kd7 Ke2 h5 Kd3 c5 Kc4 e5 Kb5 c4 g4 e4 a4 h3 f4 c3 a5 h2 Ra2 b6 g5 h4 g6 c2 f6 e3 d6 e2 a6 e1B f7 b2 a7 h3 f5 Rh7 g7 Nc6 f6 Na5 Na3 b1N Ne2 Bh4 Rg1 h1N Nc3 h2 Nc4 Nf2 Rg6 h1B Rh6 Be7 f8Q Nb3 f7 Nf6 g8B Bf3 Bb2 c1B Qe8+ Ke6 d7 Ne4 Kc6 Bh5 Nb5 Nbc3 Rg6 Ba6 Rh6 Qb8 d8B Qg3 Bc7 Be3 Bc1 Qg1 Rg2 Bef2 Bb2 Rd8 a8Q Ned2 Bc1 Rd5 Bb2 Bc8 Qa3 Ba6 Na7 Ra5 Bc1 Bb5+ Kb7 Kd5 Kb8 Bhg3 f8N+ Rf7 Qa2 Nh7 Ba3 Bg5 Qb2 Ba6 Re6 Rd7 Ng6 Bb5 Nh8 Ba6 Ne5 Bd3 Nef7 Kc4 Nc6 Kb5 Na7+ Ka4 Rd6 b5 Qe1 Bh2 Rb6 Bde2 Nd6 Bhg3 Bc4
3r2BN/2R1NQ2/3PQQ2/1rbN1b2/rBK1nP2/2p1rn1N/3r3q/b1bR1k2 b - - 0 1 illegal: No possible last move
2rnn1Nb/Bn2n2q/1Q1PQRb1/Q1b2Nbk/4p2r/6PR/1B4B1/BKb5 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kf7 f4 Kg6 d4 h5 Kd2 e5 Kc2 a5 d6 c5 d5 c4 g3 c3 d7 a4 b6 e3 b5 e4 b7 e2 b6 e1B Be2 a3 Bf3 a2 Bg2 h3 Qe2 h2 Nh3 h4 Qf2 Qc7 d8Q Ne7 f5+ Kh5 f6 Bd2 f7 Bf5 Bb2 Nbc6 b8B Bg5 b7 Bg6 Ba7 Rc8 Ng1 h3 b8B Rh7 Qe8 Nd8 Nf3 Qd7 Rf1 h1N Nh4 h2 Qb6 Nf2 Nf5 h1N Be5 Ng4 Bg7 Nhf2 d6 Nd3 Bh8 Bg7 f8Q Bd4 Qff7 Bde3 Qd5 Nf6 Qda5 Nc5 Qf7 Qc7 Qe6 Ncb7 Rf4 Bg1 Kc1 c2 Nc3 Bf2 Nd5 Ne8 Rb1 a1B Bhg7 Nec6 Nde7 Bc5 Ng8 Rh8 Ba3 Bc3 Bb2 Rh6 Be5 Qh7 Ba1 Ne7 Rb5 B3b4 Beb2 Bd4 Rd5 Bh8 Rd2 Bc5 Rf1 Kg4 Rh1 Rh4 Rh3 Bgf6 Rf2 Kh5 Kd2 c1B+ Kc2 Bfg5 Kb1 Kg4 Ne3+ Kh5 Rf6 Rc6 Nf5 Rc7 Qa4 Rc8 Qaa5
RQr1bk2/1K1BBBnb/2prn2r/b1Rb4/1N6/1B1r4/2q1NP1P/2Nr1Q2 b - - 0 1 illegal: No proof kernel
n1qqQ2b/1R1q3N/P2PQ3/Nn3pk1/2r5/2Bq1RKB/qRbq1B2/1Br5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 a4 g5 h4 c5 d4 b5 h6 c4 h7 c3 h5 g4 h6 b3 a5 f3 a6 b2 d6 c2 d5 g3+ Ke1 f2+ Ke2 b4 Kf3 b3 d7 g2 d6 Nc6 Nd2 b1Q e5+ Kg5 e6 b2 e7 Bg7 e8B Nge7 Ra3 Na7 Qe1 Qa2 Rh2 b1Q Qe6 Nd5 Kg3 Qb7 Rf3 Nc7 Bb2 c1Q Nc4 f6 Bg6 Qd2 Bd4 Nab5 Bb1 Rf8 Ba7 Bh8 Na5 Rb8 Bd4 Na8 Bb6 f5 Bd4 Qa7 Bc3 Bb7 Nh3+ Kh5 Bd4 g1Q+ Bg2 f1Q Bf2 Qc8 d8R Be4 Rd7 Qfd3 Rb7 Qgc1 Bf1 Q1c7 Rg2 Q7d8 Ng5 Bf6 h8Q Kg6 Rb6 Qad7 h7 Rb7 Rh2 Rc7 Bh3 Rc4 Rb7 Rf7 Qhe8 Kh6 Qe5 Bh8 Qd5 Re7 Qdf7 Re5 Qfe7 Rec5 Qe6+ Bf6 h8B Rc1 Nh7 R5c4 Nf8 Kg5 Bg7 Be7 Bc3 Bf6 Be1 Bd4 Re2 Bh8 Bf2 Qd1 Rc2 Q3d2 Rb2 Bc2 Bg7 Qd3 Bc3 Q1d2 Nh7+
R2Nk1K1/5p1r/1B4PB/1rbnrN2/1QB1r3/b2bR1Pb/1bBQ2q1/4Qn2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 c5 Kf3 a5 Ke4 h5 Ke5 c3 b4 h4 d4 c4 e4 a4 d5 c2 b6 h3 g3 f3 g6 h2 d6 a3 b7 a2 b5 f2 d7+ Ke7 b6 c3 Nd2 Rh4 Ngf3 Bh6 Nc4 Nf6 Nd4 Be3 Ne6 Na6 b8B Nc5 b7 Nb3 Ba7 Nd5 b8Q Nd2 Qe1 Bc5 Qb4 Rb8 Nd6 Rb5 Bc4 f1B Bb6 Bd3 Rf1 h1R Rf3 Qc7 Nd8 Nf1 Bh6 c1B Re3 c2 Kf5 R1h2 Kg5 Qc6 e5 Re2 e6 Re4 Kh5 Bb2 Nf5+ Kf6 e7 c1B e8B Ba3 Bf4 Bcb2 Kh6 Qa8 Kh7 Qb7 Rc1 a1R Kg8 Rh2 Rc3 Rh7 Bh6 Rd1 Rc1 Rd2 Ra1 Re2 Nc6 Ke6 d8Q Qa8 Qd7+ Kf6 Nd8 Re5 Rf3 R2e4 Re3 Qc6 Qa7 Qa8 Qaa5 Be6 Qbd2 Qc6 Qab4 Bc8 Nh4 Ke7 Bd7 Qb7 Bf5 Ke8 Ra2 Rf4 Be4 Bh3 Nf5 Qa8 Bf3 Rfe4 Bd1 Qc6 Bc2 Qf6 Nd4 Qf3 Nf5 Qg2 Ra1 Bc1 Ra2 Bab2 Ra7 Ba3 Ra5 Bcb2 Ra8
b1RN3b/3NPkr1/1br1Q2P/p2R1B2/b1r1qrQ1/7B/1B4QK/3nrB1n b - - 0 1 illegal: No possible last move
3R1Qqq/1rqP1kb1/1N1q2b1/1Nnrq3/4BBRp/N6N/4qQP1/1K2nR2 b - - 0 1 illegal: No possible last move, all moves rejected
Kb1Q4/1n1P2rn/2b2nbQ/2kPNN2/1B4B1/B2R1r2/1Rpb1R1B/3q1nb1 b - - 0 1 illegal: No possible last move, all moves rejected
N1K2B2/1n1p1B2/n1N2Q2/1k3rqN/rRr1B3/1n1BPb1P/4n1rb/R5Qr b - - 0 1 illegal: No possible last move
n3Nr2/3p2B1/P2nrBr1/bb3BP1/QNRn4/1R1r1qQ1/R4nnk/1RK5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 g4 h5 a4 b5 f4 e5 c4 e4 a5 h4 g6+ Kf6 g7 b3 c5 e3+ Ke1 b4 c6 e2 Kd2 e1N c7 b2 Nc3 b1N+ Ke2 b3 Rh2 b2 Rh3 d3+ Ke3 d2 Nb5 Ba6 c8R Nc6 Qa4 d1R Nc7 Nd4 Ra2 Rh6 Nf3 Na3 Ne5 b1R Nc6 Bb5 a6 Bb4 Bd3 Qf8 Bb2 Ba5 Nb4 Ne7 g8Q Rg6 Rb8 Nc8 Ne8+ Ke7 g5 Nd6 Qc4 Qf6 Rg3 h3 Rb7 h2 Bc3 Rdc1 Kd2 h1N Rb6 Ng2 Rh3 Qe6 f6+ Kf7 f5 Qd5 Bc2 Nf2 Qe2 Qb3 Qg4 Re1 Bb2 Qd5 Rb3 Qf3 Rc6 Rd8 Rc4 Re6 Bc3 Rb2 Kc1 Ra8 Be4 Rd2 Bb2 Rd3 Ba1 Kg8 f7+ Kh7 f8B Rc8 f6 Rb8 Rc7 Nac4 f7 Nb6 Bg7 Na8 Rc4 Rc8 Bf5 Rb8 Nc7 Rf8 Ne8 Nh3 Qh4+ Qh5 Rcc3 Nc2 Bh6 Rh8 Bg4 Rg7 f8R Kg6 Rf1 Rf8 Rc4 Nf2 Bf6 Nd4 Kb2 Rgg8 Bh3 Qf3 Rb1 Rg7 Qe4+ Kh5 Kc1 Rg6 Qf5 Kh4 Bhg7 Kg3 Qe4 Kh2 Bf5 Bc7 Qg4 Ba5 Qg3+
nRb2K2/2P1B3/RQ1b1PB1/1Q2N2r/1R1pbk1n/n1b5/R2N1Nn1/1b1q1r2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 b4 h5 g4 d3 f4 a4 c4 a3 b6 h3 c5 e4 b5 e3 c6 h4 b7 e2 b6 e1B c7 a2 Qa4 h2 Nh3 d2 Bd3 d1N Nf2 h3 Qb5 Nh6 Ba3 Bc3 Nd2 Bd6 Re1 h1B+ Re4 h2 g5+ Kg7 g6 Kf6 g7 Rf8 g8R Ra5 Rb1 a1N Rg2 Nc2 Ra4 Rf7 Bc5 Na3 Rbb4 Ne3+ Ke4 Nc6 b8R Ne5 b7 N5c4 Qb6 Rb5 Ra6 Ra5 Qb5 Nb6 Bb1 Na8 Bd3 Ke7 f6+ Ke6 Bc2 Rf8 f7 Nhf5 Bb1 Nh4 f5+ Kf6 Qb6 Ng4 Kd5 Kg5 Be4 Kf4 Qb5 Rh8 f8N Rh5 Rg3 Bf3 Rg2 h1B Qb6 Be2 Qb5 Bd3 Ng6+ Kg5 f6 Bb1 Ne5 Kf4 Rb3 Ra4 Bg6 Re4 Rb2 Re1 Qb6 Rf1 Bb4 Bf8 Be7 Ne3+ Kc5 d5 Rb4+ d4 Kc6 Qe8+ Kd6 Qa4 Rh2 Qd1 Rg2 Bcf5 Rh2 Bfe4 Ke6 Bf5+ Kf7 Bhe4 Qb5 Neg2 Qb6 Bh6 Qb5 Bg5 Kf8 Bh3 Rd8 Bc8 b8Q Kg3 Q8b6 Bf4 Nd7 Bd6 Ne5 Kf4 Re8 Bcb7 Rb8 Bc8 Rh3 Bb2 Rc3 Ba1 Rc2 Bc3 Ra2
1k4nQ/rP1Q3n/pqnb4/2n1QP2/1NBrN2N/R1b5/1Bb4b/3R1QbK b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kd7 f4 e5 Kf2 c5 Kg2 Kc7 b4 h5 d4 a6 g5 c4 g6 h3+ Kh2 e3 g7 e4 Ra2 e2 Rb2 e1B Rb3 h4 Nd2 c3 Ra3 c2 Re3 Bf2 Bb2 c1B Ngf3 Bd6 Ra3 e3 Qe1 e2 Ne4 Nc6 b6+ Kb8 b5 Ra7 b7 Bf5 Qd1 e1B Bc4 Bc3 Qf1 Rh5 Rg1 Qb6 Kh1 Bf8 d6 h2 d7 Bd6 d8N Bce3 d5 Bg3 Ned2 Bc2 f5 Rg5 Ne4 Rg4 Ne6 Bec5 Nf4 Bcf2 Nd3 Rf4 Neg5 Rd4 Ne4 Bgf4 Nb4 Bfe5 Rg2 Bg1 Rd2 Bg3 Kg2 h1N Rd1 Bdf4 d6 B3h2 d7 Nf2 Rd3 Bfg3 Rd1 Nd3 Kh1 h3 Nh4 Bd6 Qe1 Nh6 Qf1 Nc5 g8Q+ Qd8 Qg3 Ng8 Qgf4 Qb6 Qe5 Bg3 Qh8 h2 Kg2 h1N Qe5 Nce7 Qh8 B3h2 d8Q+ Nc8 Qe7 Ng3 Qd7 Nh5 Kh1 Nhf6 Nd5 Nd3 Qh3 Qc7 Qf1 Nce7 Nb4 Qc6 Qe6 Kc7 b6+ Kd8 Qe5 Nc5 b8Q+ Kd7 b7 Qb6 Bb5+ Nc6 Bc4 Nh7 Qf8 Kc7 Qf7+ Kb8 Qd7
r2rB1q1/1p1PQN2/n7/K4bRQ/1BPbbB1b/5Q2/2n1R1n1/B3kNbn b - - 0 1 illegal: No proof kernel
8/P1rQN2Q/1b4rp/NBbRNr2/KQb1q2N/b5R1/1P3B1n/1k1n1br1 b - - 0 1 illegal: No proof kernel
b2rR2R/PqBBr1n1/2br2Pn/b2Nk2B/3NQ3/4b2R/3p1Q2/r3B1Kb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 g4 e5 f4 d5 Kf2 h5 a4 b5 a5 h4 f6 Ke6 f7 d3 g6 e4 c5 e3+ Kg2 e2 g7 e1B g5 d4 a6 b3 a7 b4 f5+ Ke5 c6 b2 f6 d2 g6 h3+ Kh2 d3 c7 b3 Qf3 d1R Ne2 Bb7 c8B Ba5 Ng3 Bc5 f8Q Qb6 f7 Rh7 Ra2 Bc6 Nc3 b1B Bd7 b2 Nge2 Nh6 g8R Na6 Nd5 Be3 Ra3 Nc7 Nd4 Ne8 Bd2 Ng7 Be1 Rd8 Be2 Qb7 Qf2 d2 Bh5 Be4 Qb4 Ra1 f8B b1R Kg1 Rb3 Bc5 Rd3 Bb6 h2+ Kf1 Ne6 Re8 Re7 Rb3 Ng7 Rc3 Ba4 Rc8 Bc6 Rh8 Rf8 Re8 Rf6 Bc7+ Rd6 Rg1 h1B Rg3 Qb5 Qa4 Ba8 Rh3 Qb7 Kg1 Bef3 Nf6 Bc6 Nd5 Qb8 Ne6 Bcb7 Nb6 Bbc6 Bc8 Qb7 Qc2 Ke4 Qb1 Rd8 Bd7 Rf7 Qb4+ Rd4 Qe7 Rd6 Qh4+ Ke5 Nd4+ Re7 Nd5 Rd1 Qg4 Ra1 Qe4+
k3rB1Q/1B2bn1b/b2N2N1/1R1r3B/r1nRnK2/N1p2PB1/2P3b1/qQ2r3 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 h5 Ke3 c5 g4 d5 b4 Kd7 e6+ Kc7 g5 Kb7 g6 a5 b6 a4 e7 h3 e8Q c4 b5 h2 g7 a3 Qe5 a2 Bd2 d4+ Kf4 e3 Qc5 c3 Qb4 e2 Bh3 e1R Na3 d3 Qd4 h4 Nf3 Nf6 g8B Rh5 Ng5 Nbd7 Ne4 Be7 Qb1 Rd5 Bf7 Ne5 Bh5 Nf7 Nd6+ Kb8 b7 Qa5 Be6 Ne4 Qh8 h3 Rg1 h1B Rg5 Ka7 b8N h2 Nd7 Ba6 Nf8 Bg2 Bc8 h1B b6+ Kb8 Be3 d2 b7 d1N Ng6 Nb2 Bc5 Nc4 Rg4 Bh3 f3 B1g2 Rg5 Qa4 Re5 Bf5 Bb4 Rd3 Rb5 Rd5 Qb3 Qa5 Rd1 a1R Rd4 Qa4 Qb1 Qa5 Nh4 Bh7 Ng6 Ka7 Bh3 Re8 b8B+ Ka8 Bc8 Bf6 Nf5 Ra2 Bf8 Be7 Be5 Qb4 Nd6 Qb2 Bf6 Qa1 Bh4 Rb2 Bf2 Rb4 Bg3 Ra4 Bb7+
n7/n3bRNr/1rn2rq1/3Kb2Q/B1QBPpPr/3B4/N1Qbk3/BR1b4 b - - 0 1 illegal: No possible last move
2N3B1/1Q1bNr1n/bn1Bb3/K6P/p2bRB2/2Q2Qr1/Pk2n2r/1qnR3B b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 d4 Ke7 Kd2 Kf6 Kc3 g5 Kb4 b5 e4 a5+ Kc3 g3 h4 b4+ Kb3 g2 Ka4 g4 c6 g3 d6 b3 c7 b2 d5 Ke5 d7 f5 d6 f3 Nc3 b1B Bd2 Kd4 e5 f2 e6 f4 e7 f3 e8B Bg7 Rh2 Bf5 Ne4 Be6 Bf7 Nf6 Nh3 g1N Bg8 g2 Nf4 Nh7 Ng6 Ne2 Ne7 g1N Bg2 f1R Bh1 Nc1 Re2 f2 Bf4+ Kc4 Re1 Bd4 Qf3 Nge2 Rb1 Qf8 d8B Qf5 d7 Ra7 Ra1 Rg1 Rd1 Ba6 c8Q+ Rc7 Re1 f1B Qb7 Rg3 Rd1 Bh3 Nd6+ Kc5 Re1 Qb1 Ndc8 Kc4 Bd6 Nc6 Bf4 Nb4 Bd6 Nd5 Rd1 Rc5 B8c7 Bhg4 Bb8 Rc7 d8Q Bh3 Qdf8 Bhf5 Qg7 Nb6+ Ka3 a4 Re1 Nf4 Re4 Nfe2 Bf4 Rd7 Bbd6 Bg4 Ng6 Rf7 Nge7 Nd3 Qe5 Kc3 Qa5+ Kc2 Qe5 Ndc1 Qg7 Bb2+ Kb4 Bd4+ Ka5 Kb2 Qe5 Bd7 Qc5 Bge6 Qc4 Nf8 Qcc7 Rh6 Qcc6 Nh7 h5 Rhg6 Qc4 Rh3 Qcd3 Rh2 Qde3 Rg3 Qa3+ Kc2 Qac3+ Kd1 Qb2 Nd3 Bc1 Qc2 Qb5 Qb3 Be3+ Kc2 Rd1 Ndc1 Bef4 Qb1 Qc5+ Kb2 Qcc3+
1KRn1b2/RR1Q1qBk/4B1n1/6np/1Rb2Q2/1Q1N1P1b/Pr1r2bN/4r1r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kg7 Kf4 h5 Ke5 b5 g4 c5 d4 h3 d6 b3 d7 h2 f6+ Kh7 f7 b4 d5 b2 g5 c4 f3 b3 d6 c3 Bc4 c2 Be6 Qc7 Nd2 b1N d8Q b2 Qd7 Nc3 Ne2 b1B Nf4 Ne4 Bb2 c1R Nf1 Bd3 Qb3 Bc4 Rb1 Ra6 Bd4 Rb6 Nd3 Qb7 Rg1 h1B Rg4 Bg2 Nh2 Rg1 g6+ Kh6 g7 Ng5 Qba4 Rb2 Qb3 Kh7 Bc3 Bb5 Rb4 Nc6+ Kd5 Nd8+ Kc5 Qd5+ Kb6 Bc4 Kc7 Qf5 Kb8 Qg6 Bd5 e5 Be6 Ne7 g8R e4 Bg7 e3 Rb7 Qf5 Ra7 Ng6 Rb7 Be7 f8Q e2 Qf7 Qd5 Qf4 e1R Re8 Bf8 Re7 Rc2 Qbb5 Rg8 Rb4 Rb2 Qa4 Qf5 Qb3 Qf7 Qb5 Rbb1 d7 Rb2 Rb6 Nb7 d8R Re4 Bd7 Ree1 Nc1 Rh8 Bf5 B8e6 Red7 Be7 Rc8 Rd8 Rc7 Rd5 Qd7 Nd8 Ra7 Rdd2 Rbb7 Bc5 Nd3 Bf8 Be4 Bg4 Bd5 B4h3 Be6
1R3B1K/1rr2N1b/1kqPQp1b/Q3N3/r7/n2bP2B/3BR1r1/NNn1n2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 a5 Kf5 c5 d4 Kc7+ Ke5 c4 g4 h3 b4 h4 d6+ Kb6 e3 f6+ Ke4 a4 d7 h2 Kf5 a3 Kg6 c3 d5 c2 g5 f3 Bh3 a2 Ne2 f2 Qe1 f1B Bd2 c1N Nd4 Nc6 Nb3 Qc7 d8N Rh7 Nf7 Na5 Rg1 h1B Rg2 Nh6 Re2 Kb7 b6 Ng4 b5 Ra7 Qd1 Nh2 Qe1 Rg7+ Kh6 Nc4 g6 Rg8+ g7 Qc6 Kg6 Nf3 Kh7 Kb8 b7 Kc7 b8B+ Kb6 Bh2 Rb7 Bd6 Na3 Be7 Bd7 d6 Be8 Nc3 Bd7 Rb1 a1R Rb2 Be6 Nb1 Ra2 Na1 Bf5+ Kh6 Bh7 Rb4 Ka5 b6 Rc7 b7 Ka6 Bg2 h3 b8N+ Ka7 Nd7 h2 Rb5 Rb2 Rb8 Rbb7 Nde5 Kb6 Qg3 Ne1 Bh3 Bhg2 Qg4 h1R Qh5 Rg1 Qg5 Bh1 Qf5 Rg4 Qe6 Bc2 Qf5 Ra4 Kg6 Rh8 g8Q Bh6 Qe8 Bd3 Bf8 Rg8+ Kh7 Rg2 Kh8 Bc2 Qh5 Bf5 Qe6 Bh7 Rf2 Bfd3 Re2 Nb5 Qh4 Na3 Qb4+ Bb5 Qc3 Bbd3 Qa5+
Rn6/nnr1r2N/bkRp1RB1/1bN1QNNK/3P3P/1r1bn1q1/3b3B/5Q2 b - - 0 1 illegal: No possible last move
B6q/1N1Nbbr1/bK1pQn1k/rnP2B1n/1P1nR3/1r1Q4/5B2/1N1r1NR1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kg7 Kc4 a5 Kc5 h5 g4 a4 b4 d3 c4 a3 f4 d2 f6+ Kh6 f7 a2 f5 h3 f6 h2 b6 e5+ Kb5 h4 c5 h3 b7 e4 Bg2 d6 Ne2 e3 Re1 h1B Ng3 e2 Nf1 Be7 f8N h2 f7 Ra7 Nd7 Nc6 b8Q Nf6 f8N Rb7+ Ka6 Nd4 Ne6 Nb5 Qb3 Rh7 Qd3 Qh8 Nd8 Rg7 Bd5 Ra7+ Kb6 Ra5 Ba8 Ba6 Qc8 Bd5 Nb7 h1N Qe8 Bf7 g5+ Kh5 g6 d1R Bd2 Ng3 Be3 Ra3 Qg8 Rb3 Bf2 Kh6 Qc8 Rh7 g7 Ngh5 g8B Rg7 Qe8 Be6 Nc3 Bf7 Rc1 a1N Bh7 Nc2 Nb1 Ncd4 Be4 Ra3 Bf5 Ra5 Qc4 Rd3 Rcd1 Rda3 Qd3 Rb3 Rc1 Qf8 Rc4 Qh8 Rec1 e1R Rd1 Nc6 Re4 Ncd4 Rc1 Rd1 Qg8 Be8 Qe6 Bf7 Nh2 Rd2 Rg1 Rd1 Nf1
5nr1/1nQ2rNk/P2QQBp1/5b1b/rbK1P3/2RR1qN1/1B1B2b1/1r1B3n b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 d4 c5 Kd2 f5 Kd3 Kf7 a4 b5 h4 f3 a5 b3 d6 b2 d7 f4 h6 Kg6 d5 b4 h7 c4+ Kd4 b3 e3 f2 d6 f3 Qe1 c3 Bd2 c2 Nh3 c1N Kc4 Ne7 Ra3 Nec6 Ng5 Qf6 d8Q Bf5 d7 Ne2 Ne6 Bb4 Nc3 b1B Rh3 b2 Qc7 Nd8 Ne4 Nb7 d8Q Nd7 Rd3 Nf8 Qdd6 Rg8 h8B Kh7 h5 Ng3 h6 Nh1 Be2 f1B Bd1 f2 Ng3 Bg2 Qe2 f1R e4 Rf2 Qg4 Bc2 Rc3 b1R a6 Rb8 Rd3 Ra1 Rc3 Ra4 Rd3 Qf7 Rc3 g6 Bf6 Qd7 Ng7 Qf7+ Qe6 Rf3 Qgf4 Rf1 Qfd6 Bd3+ Kd5 Be2 Rd3 Bh5 Kc4 Re8 Bb2 Re7 Rc3 Kh8 h7 Rg1 Bb3 Rb1 Bd1 Rd7 Ne2 Qf6 Rhd3 Rf7 Ng3 Qe5 Qcc5 Qf4 Qcc7 Qf3 Ne8 Qf4 Nf6 Kg7 h8B+ Kh6 Ne8 Kh7 Bf6 Qf3 Ng7
4nQr1/R4PBn/b1N3n1/q1pK2RB/1b2R2k/N5B1/2Q1br1P/rB2n1r1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 a4 b5 f4+ Kh4 d6 g5 a5 e5+ Kd5 e4 d4 b3 a6 e3 f6 g3 f7 b2 a7 b4 f5 e2 f6 e1N d7 b3 Qc2 g4 Ra6 g2 Bf4 g3 Bd3 Nc6 Ra4 Bb4 f8B Ba6 f7 Ne5 Bg7 c5 Na3 b1B Ne2 b2 Rg1 Qa5 d8R Ng6 Re8 Rh5+ Re5 Rf5 Be4 Rf8 a8B Re8 Bf3 Rb8 Bh5 Nf6+ Ke6 Rg8 d5 Ne8 d6 Rf6+ Kd5 Rf5 d7 Rf6 Qd1 Bbd3 d8Q b1R Nd4 Ra1 Nc6 Be2 Qd6 Rf5 Qf8 Rf6 Qc2 Rf5 Rh1 g1N Bb7 Ngf3 Rg1 Rf6 Re4 g2 Bc8 Ng5 Bf5 Qc7 Ra5 Nh7 Ra4 Bc8 Ra7 Bca6 Rf1 g1R Rf3 Rb1 Rg3 Ra1 Rg5 Qb6 Bh3 Qa5 Bf1 Bf3 Bc4 Bd1 Ba2 Bde2 Bb1 Bg4 Bd2 Rf2 Bf4 Bge2 Bg3+
R7/bR1n1P2/K1N1P3/5Bb1/Rp1q1B1N/r2QQ1R1/1rkbn2n/2nb1N1r b - - 0 1 illegal: No possible last move, all moves rejected
qr4Rn/QR1b1P1b/3Np1b1/4K3/BB1nb1RQ/r1r4B/1r2P1nk/3B3N b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Rh3 Bh6 Rh1 fxg4 Bf4 g3 Be3 g4 Bc1 Bg5 hxg5 Kf8 Rh6 Kf7 Rh1 Ke8 Kd2 Kf7 Kd3 Kg6 Ke4 d5+ Kf4 h5 b4 a5 c4 h4 c5 Kh5 g6 e6 f3 d3 c6 h3 c7 Kh4 b6 d4 b7 d2 g7 g2 b5 d3 b6 g3 Ra3 h2 Ra2 a4 Nc3 a3 Nd5 Bd7 c8B Ne7 g8B Nbc6 b8R Nd4 Nh3 g1R Qa4 d1B b7 d2 Bh7 Bc2 Nf2 d1B Nc3 Bg6 Ke5 Bdc2 Rb2 a2 f4 a1N Bh3 g2 f5 Kg3 Bd2 Rc1 f6 g1R f7 Ra7 Qb4 Ra3 Nb5 Bce4 Ra8 Rcc3 b8Q Rb1 Qa7 Nac2 Nd6 Ne1 Rg1+ Ng2 Qc4 h1B Rb7 Kh2 Be1 Nh4 Rg4 Rb2 Bd2 Bhf3 Nh1 Ng2 Rab8 Bd3 Be1 Bfe4 Bd2 Be8 Bd7 Rf8 Ba4 Bd7 Qb4 Qc8 Bd1 Qc6 Rd8 Qc8 Ba4 Rh8 Rg8 Qa8 Rg7 Rb8 Rg8 Bh5 Bf5 Bg6 Qc4 Rcc2 Bb4 Rcc3 Qb3 Bb1 Qd1 Bh7 Qe1 Bbc2 Qh4 Ng6+ Kf6 Nh8 Ke5 Bf3 Bd3 Bfe4 Bc4 Beg6 Bcb3 Bce4 Bd1
2n1r2n/4Np2/1NQPq2B/1rb2RRB/1rR2n1b/2KBr2B/1PQ3b1/5n1k b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 e4 Kd6 d4 h5 Kd2 a5 g5 c5 g6 f3 b6 a4 b7 a3 g7 f2 Bb5 f1N+ Kd3 a2 Bd7 c4+ Kc2 c3 Bh6 h3 Bf5 h2 Bh3 h4 Bg2 h3 Kb3 c2 Ne2 c1B Ng3 Ra4 Rg1 h1N Na3 h2 Bh3 Qf6 Qc2 Ne7 g8B Bg5 Rc1 a1R Bh7 Ng6 Kc3 Nd7 b8R Bh4 Rb5 Rb4 Bg4 Rg8 Bh5 Nh8 Ra5 Nb6 e5+ Kd7 e6+ Kd6 e7 Qe6 e8B Nf2 Bf5 h1R Bd3 Rh3 Bd7 Bb7 Rc5 Nc8 Nc4+ Ke7 d6+ Kf6 d5 Ra5 Nf5 Rab5 Rg2 Re3 Ne7 Nh3 Nb6 Ke5 Rg5+ Kf4 Rf5+ Kg3 Rc4 Nd2 Rg1+ Kh2 Rg2+ Kh1 Rgg5 Qe4 Be6 Nf4 d7 Nf1 d8Q Ba8 Bd7 Qe6 Qc7 Bb7 Qc6 Ba8 Ng6 Bc5 Ne7 Re8 d6+ Rf3 Qc7 Be4 Qb7 Re3 Qc6 Bg2 Rf6 Qd5 Bh3 Qe6 Rff5
Bn3qN1/2bP4/Rbp5/r2kQP2/nnrn2KQ/2R4B/1Br3B1/2RN2rb b - - 0 1 illegal: No possible last move
1B1nbk1r/qP1rQB2/r2n2R1/8/1Q2N1n1/5b1b/p1R2R1P/bQrN2KQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 g5 e4 f5 d4 a5 b4 c5 d6 f3 b6 g3+ Ke1 c4 e5 c3 b7 f2+ Ke2 g4 b5 c2 d5 g2 b6 g3 e6 f4 e7 a4 Nc3 a3 Qd4 a2 Qd3 Bg7 Ne4 Nc6 b8Q Bd7 Nh3 Ra6 Rg1 Nh6 b7 Kf7 e8R Qb6 Rc8 Be8 d7 Qa7 d8Q Ng4 d6 Kf8 d7 Bf6 Qdc7 Nd8 Qc6 Be5 Bb2 c1R Qb1 Bg7 Be5 f3+ Kd2 Bf6 Bc4 f1B Bf7 Be2 Nhf2 Bd1 Rf1 g1R Ke1 g2 Bg3 Rh1 Qf4 g1N Qd5 Bb2 Rc2 Nh3 Qfd2 Rg1 Bb8 Ng5 Qc6 Be2+ Nd1 Rg3 Rf2 Bc3 Bc4 Ngf7 Qd5 Bg7 Qdb4+ Nd6 Qc6 Rgh3 Bf7 R3h7 Qd5 Bc4 Qc6 Bd5 Kf1 Be5 Rfe2 f2 Red2 Ne6 d8Q Bd4 Kg2 f1B+ Kh1 Bf6 Rf2 Bh3 Kg1 Bc3 Qg5 Nd8 Qe3 Bc4 Qe1 Be2 Qcc5 Bf3 Qf1 Rh6 Qg2 Re6 Qh1 Re7 Qg5 Rd7 Qe7+ Kg7 Q1b3 Bb2 Rb1 Be5 Qb6 Nf5 Qc4 Ba1 Rb5 Nd6 Rg5+ Kh7 Qb1 Kh6 Qcb4 Kh7 Re5 Kh6 Re6+ Kg7 Qg5+ Kf8 Rg6 Bf1 Qh4 Bh3 Qe7+
8/P3n2K/qb1Bb2Q/1bRQPp1r/Qkr1r2Q/N1b3R1/n6r/nN3B1B b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 f5+ Ke5 b5 e4 h5 g4 b3 d4+ Kb4 g6 c5 g7 h4 d6 f3 a5 b2 d7 h3 d5 c4 g5 h2 d6 c3 a6 f2 a7 c2 g6 Qf6+ Kf4 Na6 d8Q Rh5 d7 Ne7 g8Q Nc5 e5 Nb3 g7 Qa6 Na3 b1R Be3 c1B Nf3 Bd2 Qe6 Bc3 Rg1 h1R g8B R1h2 Qh6 Rb2 Bd4 Re2 Rc1 Na1 Nd2 Rb8 Bd5 Re4+ Kf3 Rb7 Ndb1 Rc7 Rg3 Rc5 Qe8 Rc4 d8Q Be6 Qf7 Bg7 Bb6 Bf6 Bc7 Bg5 Qff6 Be3 Qh4 Bb6 Bc6 Rg5 Q8d5 Rh5 Bg2 f1B Bd6+ Ka5 Q1d4 Ka4 Bb7 b4 Bh3 Bd3 Bf1 b3 Rc2 b2 Rc1 Rb4 Bc6+ Bb5 Rc2 Bd2 Rc5 Bc3 Bb7 Rc4 Bc6 Ree2 Kf4 Kb4 Qg7 Rh6 Kg5 Rh5+ Kf6 Re4 Qh6 Nc8 Kg7 Ne7 Nd2 b1N Kh7 Bb2 Ba8 Nc3 Ndb1 Na2 Qd1 Re1 Q5d3 Re3 Bh1 Ree4 Qd5 Bc3 Qa4+
2QKN3/p1N2Q2/1Q3n2/3PQ2B/1nn1bRPR/r3r3/1Bqbb2b/r1k2nB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 e4 c5 d6 f5 d7 h3 Ke6 h2 d5 f3 b6 h4 e5 h3 b7 f2 Qc2 f4 Nd2 c4 Ngf3 c3 Be2 f1N Nc4 Nc6 b8B Ne3 Ng5 f3 Nd6 f2 Bh5 f1N g4 Qc7 Ne8 Ba6 d8Q Bd6 b3 Nc4 Bb2 Qh7 Qb6+ Bb5 Re1 Nf6 Re4 Rf8 Qc1 c2 Rf4 Rf7 Qa1 c1B Qaa6 Qc2 Qc8 Rb7 Bc7 Bd2 Kf7 Ne3 e6 Nf1 e7 Rab8 Ne6 Be5 Bc1 Kc3 b4 Ba6 b5 Nb4 Bb2+ Kb3 Rg1 h1R Rg2 Ka2 Rh2 Kb1 Bd6 Rg1 Bc5 Rd7 Rh1 h2 N6c7 Rg3 Bf2 Ra3 Bg1 Rd6 Kf8 Re6 Kf7 Bd6 Kf8 Ree3 Kf7 Ne4 Ke6 Be5 Kd7 Nf6+ Kd8 Ra1 Qd4 Rea3 b6 Ra8 b7 Bb5 Bc3 Kc1 b8Q Ba6 Qb5 Rb8 Qf2 Rb6 Qe3 Re6 Qbb6 Bd6 Qed4 Re2 Qe5 Re3 Ng7 Bb5 e8Q Ba6 Qf7 Bb5 Nge8 Ba6 Bf2 Bb5 Rg1 h1B Rg2 Ba6 Rh2 Bg2 Bg1 Be4 Rh4 Bb5 Qg5 Be5 Rf2 Bh2 Qe5 Nd6 Rf4 Be2 Bd4 Nc4 Bb2+
R3qNn1/4b1nK/3kN1B1/3Bq3/R4P1p/1QPq1Q1B/bq2r3/1bb1BrN1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 d5 b4 Kd7 f4 h5 g4 e5 g6 a5 g5 a4 g7 a3 b6 e3+ Kd3 a2 b7 h4 c3 e4+ Ke2 d3+ Ke1 e2 Kf2 e1B+ Ke3 d2 b5 Kd6 b6 Be7 g6 Nc6 b8N Nd4 b7 Be6 Bh3 Qe8 Qf3 d1B Nd7 Bc2 Na3 Bb1 Nc2 Rh6 Nf8 Bd2+ Kf2 Nf5 Nd4 Bf7 Nde6 d4 Rh2 d3 b8Q+ Kc6 Qb5+ Kd6 Qb3 e3+ Kg2 e2 Kf2 Nf6 g8B Ng7 Bh7 e1Q+ Kg2 Be3 Bd2 Ng8 Rh1 Rh5 Kh2 Re5 Kg2 Qc1 Be1 d2 Kh2 d1Q Kg2 Nf5 g7 Qd3 Bg6 Qa3 Rh2 Qa5 Rh1 Bc1 Rh2 Nf6 g8B Ng7 Kf2 Re4 Rg2 Rb8 Rg5 Qc7 Ra5 Qc5+ Kg2 Qe5 Ra8 Rb5 Nd8 Bc4 Bd5 Ng8 Nde6 Rb8 Bg4 Re2+ Kh3 Rf2 B4f5 Rf1 Kg4 Rb4 Qa4 Rb2 Qb3 Nf6+ Kg5 Re2 Kh6 Ng8+ Kh7 Bc2 Rb1 a1Q Bh3 Qb2 Rba1 Bb1 Qc2 Bb3 R1a4 B3a2 Qb3
1Q1K2nn/1BBN2rq/4Q3/1nq1b2b/kpQnb2B/P6Q/1P2br2/1R2R2N b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 exf4 Qc2 g5 Qc5 gxh4 Qxa5 Nc6 Qa7 Nb8 Kf2 Kd7 Kf3 h5 Ke4 b5 Kf5 h3 e4 f3 g4 f2 d4 h4 e5 b4 a3 h2 g5 h3 g6 Rh7 d6 Kc6+ d7 Ne7+ Kf6 Na6 g7 Ng6+ Kf5 Qg5+ Ke4 f5+ Kf3 f4 Ke4 f3 d8Q Bd6 g8Q Rg7 e6 Nh8 e7 Bg4 Bd3 f1N Nd2 f2 Qc8 Ne3 Bb1 Kb5 d5 f1B Ndf3 c5 Ne5 c4 Ne2 c3 Ng3 Nf5 Bf4 Bfe2 Re1 c2 e8Q+ Ka5 Qd4 c1N Qdc4 Nh6 Qg6 Bb8 d6 Ka4 Kd5 h1Q+ Be4 h2 Kc6 Nc7 d7 Nb3 d8B Nb5 Rab1 N3d4+ Kb6 Qh5 Bb7 Bd6 Q8h7 Ng8 Qge6 Qd5 Bdg5 h1B Nd7 Be4 Nh1 Qg6 Qh2 Bh5 Bh4 Qh7 Qhh3 Qe5 Q8c7 Rf8 Qb8 Qg5 Bh2 Rf2 B2g3 Bf4 Bh2 Nd6 Kc7 Qc5+ Kd8 N6b5 B2g3 Bd6 Bf6 Bf4 Bgh4 Bg3 Be5 Bh2 Bd6 Be5 Bc7
Qn1k4/B5rq/n7/5PN1/2nrPK2/b1rb1p1N/rRqR1NQ1/1BR1n1N1 b - - 0 1 illegal: No proof kernel
2b4N/1n1n3Q/R7/BKbrp1RP/N2k2q1/r1QPr3/QQB2rq1/b1b4N b - - 0 1 illegal: No possible last move, all moves rejected
3r3B/q1brq3/1nQ1R1B1/qp2Q3/b2NNnb1/1Q1q1R1N/b1P1P3/Q2k1K2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 a4 Ke7 h4 Ke6 a5 Kd5 e6 Kc4 h6 f5 a6 d5 a7 g5 h5 d3 h7 d2+ Kf2 g4 h6 g3+ Kg2 b3 e7 f4 e8N b2 Nf3 d4 Rg1 d3 Ra3 Ne7 Ra1 Ng6 Ng5 f3+ Kh1 g2+ Kh2 f2 Nf7 Qe7 Nf6 Nd7 Ra3 Nb6 Ng5 Nf4 Nh3 Bg4 Kg3 Rd8 a8Q Rd7 Nc3 b1B Nfe4 Ba2 Bb2 Rg8 Qe1 d1Q h8Q d2 h7 Qa1 Nb5 d1Q Rf3 Qd3 Qe5 Rh8 Rh1 g1Q+ Bg2 f1B Qb1 Bh6 Bc3 Rhd8 h8Q Qgc5 Nd4 Qa5 Kf2 Bg7 Qeb8 Be5 Qd1 Bd6 Qe5 Bc7 Rh2 Qa7 Bh1 Bg2 Qf1 Qb2 Qa1 Qba3 Kg1 Q3a5 Bb2 Bf1 Rhf2 Bg2 Re3 B2f3 Kf1 Bf5 Bg2 B3g4 Rff3 Bg6 Qc8 Be8 Qab8 Rd5 Qce6 Ba4 Qc6+ Kb4 Rg3 R5d7 Bf3 Bge6 Bh5 Bg4 Ref3 Nc4 Bg6 b5 Re3 Nb6 Rgf3 Qb3 Qba8 Qc4 Qce6 Qd3 Qac6 Qc5 Q5f6 Rh8 Nf5 Bd6 Nd2 Rhd8 Qfe7 Bb8 Bh8 Bc7 Nd4 Qd6 Qg5 Qe7 Qed5 Ka3 Re6 Kb4 Ne4 Ka3 Qe1 Kb2 Qec3+ Kc1 Qge5 Kd1 Qdb3 Nbd5 Qcb2 Nb6 Qa1+
Nb2q2r/Q5KR/2B1R1RB/P2QQ3/P1qr1n2/3knb1N/p3n1qn/q1Q5 b - - 0 1 illegal: No proof kernel
b1b1Q1R1/n1r1NK2/r3Q3/Prk1Np2/2N1qb2/n4N1r/2QbP1q1/BBR5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 c5 a4 b5 d4 g5 h4 f5+ Kd3 f3 a5 b3 h6 f2 h7 g4 h5 c4+ Ke3 b2 Kf4 b4 h6 b3 Na3 b1Q Bb2 c3 Bg2 f1B Be4 c2 Nf3 c1R Rg1 g3 Qc2 Ne7 Kg5 g2 Kf6 Nbc6 Kf7 Na7 Bd3 Nb5 Nc4+ Kc7 d6+ Kc6 d5+ Kc5 d7 Nc6 d6 Qg5 d8N Ra6 d7 Bd6 Be4 Nca7 Nc6 Na3 d8N Bf4 N6e5 Bd2 Bc3 b2 Ndc6 Qg4 Ne7 Qg3 Rh1 g1B Rh3 Qh2 Rg3 Bge3 Rg8 Bf4 Bd3 Bg2 Be4 Rg1 Bd3 Qh1 Be4 Qf1 Rc1 b1R Ba1 Rb5 Qa2 Qh4 Bb1 Rh1 Qc2 Qg1 Rd8 Re8 h8Q Rh3 h7 Bh1 Qg7 Qg2 h8Q Rg8 Qf6 Rg7+ Kf8 Qhg4 Qe6 Qh4 Qh5 Rh7 Qe8 Qhg4 N7c6 Rc7 Ne7 Qh4 Kf7 Qhg4 Nh4 Qe4 Nhf3 Qg8+ Kf6 Qg2 Kf7 Qa8 Nd4 Qf2 Qf8 Bd5 Ndf3 Qg2 Qe8 Be4 Q8d7 Qd5 Rg8 Qd4 Nh2 Ba8 Nhf3 Qe4 Qe8
b3bkN1/rnnB1R1r/q2r3p/b1Q1q1B1/5r2/2R1P3/N1N1QP2/b3NK1Q b - - 0 1 illegal: No proof kernel
2RqkB1Q/Nq3B2/r1rQ1b1p/1P1r1B1P/6Q1/2Q2K2/3b1R2/1qnrqN1n b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Kf2 Bb7 Ke1 Be4 Kd2 exf4 Ke1 f3 Na3 f4 Nb1 Bf5 gxf5 Be7 Na3 Bd6 Nb1 Bf8 Kf2 g5 e4 d5 h4 a5 b4 d3 c4 a4 f6 d4 c5 a3 e5 d2 c6 d3 h5 h6 c7 a2 c8B g4 e6 Ra6 b6 Nc6 b7 Nge7 b8Q Ne5 b5 Nf5 e7 Ng3 Qb3 d1R Rh3 d2 Rh2 Rg8 Qe3 Rg6 Qc3 Rc6 Ne2 Nd3+ Kg1 f2+ Kg2 Ra6 Bf5 Nh1 Nd4 g3 Kf3 g2 Nc6 g1Q Ba3 Nc1 Bc4 f1Q+ Rf2 Qe1 Qd6 Qgf1 Bg8 Qc4 Na7 Qc6+ Bd5 Qb7 Qe6 Rg7 Qg8 Rh7 Qg4 Rg7 Bb4 Rg6 Na3 Bg7 Nc4 Bh8 Rb1 a1B Ne3 Bb2 Bd6 Ba3 Ra1 Bb4 Ra4 Ba5 Rc4 Bb4 Rc8 Rc6 Ke4 f3 Kf4 Bg7 Nf1 Bh8 Rh2 f2 Kf3 Ra6 Qa3 Qe2+ Kf4 Qd3 Ng3 f1Q+ Rf2 Re1 Qb3 Qb1 Kf3 Re5 Qe3 Qe1 Nf1 d1R Qa3 Bd2 Qc3 Rc6 Bb4 Rc5 Ba3 Re6 Bb4 Kd7 e8Q+ Kd6 Qf8+ Kd7 Qg7+ Ke8 Qc7 Ra6 f7+ Kf8 Qc6 Ke7 Qb6 Re6 f8Q+ Kd7 Qfg8 Bf6 Qh8 Ke7 Qc6 Re5 Bg8 Rd5 Qc7+ Ke8 Qb6 Rc6 Bf8 Rc4 Qd6 Rcc6 Bf7+
8/QB1Rn2q/K3krP1/bPb3Br/NNN3p1/3b1q1n/2Bb1NQR/6qq b - - 0 1 illegal: No proof kernel
n6q/2R3B1/K1Q1nP2/2q1qk1p/1QrNq2R/1rQB2B1/B2PN3/b3nb1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 Kf6 f4 e5 g4 c5 b6 a5 d6 h5 g5+ Kf5 d7 c4 b5 a4 b7 h3 g6 e3 b6 a3 g7 a2 Ba3 e4 Bc5 c3 Bb4 h2 Bc5 c2 Na3 c1Q Nb5 Na6 b8Q Nc7 b7 Nh6 g8B Ra4 Qb3 Bg7 Qc3 Na8 Bd4 Nf7 Qc6 Qa5 d8Q Qc5 Rc1 a1Q Qdc7 Nd8 Ba2 Rc4 Bf6 Ne6 Nd4+ Kg4 f5 Q5c3 Nb3 Q3e5 Nd4 Bd7 Qa5 Rc8 Qbc7 Rb8 Qb4 Bh8 Bg7 Kg5 Qca4 Bb5 Qab3 Kg4 Qc6 Ba6 Q3c3 Kf4 Kd1 e2+ Kc2 e1N+ Kb3 e3 Bd3 e2 Ka4 Bb5+ Ka5 Qb2 Nh3+ Kg4 Nf4 Kg5 Rf1 h1N Rc2 Nf3 Rf2 e1Q Rh2 Q1e4 Rh4 Ne1 Nfe2 Qb3 f6 Nf4 Qb2 Qc7+ Qb6 Q7e5 Nf3+ Kf5 Qa4 Rb4 Bf8 Qg8 Nc1 Qe3 Be2 Ne6 Rc7 Bg7 Qc6 Bh6 Bg7 Qh8 Qd4 Rb3 Qdc4 Rd8 Qab4 Q3c5 Qc2 Be3 Bc4 Ba4+ Ka6 Bd4 Be2 Ba1 Qcc3 Rd4 Bc4 Rb1 Bf1 Bd1 Bd3 Rc4 Nd4+ Kg6 Qcb5 Be2 Qc6 Bf1 Nce2 Rb3 b8B Qg5 Re7 Qgf5 Bg3 Qfe5 Rc7 Kg5 Nb5 Kf5 Nbd4+
1r3bN1/1k2B1q1/Qqb1P2B/n2B2PR/2q2r2/B5p1/QNRbn3/2QKb2q b - - 0 1 illegal: No proof kernel
4R2b/n2NRb2/1qQkp3/RP1q1Q2/rn1nR1P1/1B6/Qb1n1N2/1br1B2K b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 g4 h5 f4 a5 Kf2 c5 Kg2 h3+ Kh2 a4 b4 e3 f5 e2 d6 e1N b6 h4 d5 c4 b5 c3 f6 a3 f7 c2 b7 a2 Na3 Nf6 Nf3 Qb6 Nd2 Bg7 f8Q Ra4 Qe2 Nd3 Nac4 Nc6 b8R Ndb4 Ne4 Na7 Bd2 c1N Nf2 Ne4 Be1 Nd2 Qf5+ e6 Rg1 Bb2 Kh1 h2 Qee4 Bb7 Re8 Bc6 Qb1 Ncb3 Re7+ Kd8 d7 Kc7 Qc1 Nd4 Ne5 Rc8 Bc4 Kd6 d8R+ Bd7 Rh8 Be8 Nd7 Bf7 Bb3 Rc3 Rhe8 Rc6 Rb1 a1B Rg3 Rc5 Re3 Rc7 Re4 Rc2 Kg2 h1B+ Kh2 Bf3 Kg1 Bd1 Kh1 Rc4 Qc2 h3 Rc1 h2 Qb1 Rc8 Qa2 Be2 Rc4 Bd3 Rc7 Nac6 Ra7 Bb1 Ra5 Na7 Ne5 Kc5 d6 Rc6 d7 Kd6 Qg6 Rc2 Qf5 Rc1 d8Q+ Kc5 Qa8 Kd6 Kg2 h1Q+ Kg3 Qh6 Kg2 Qg5 Nd7 Qh5 Qf3 Qd5 Qf5 N4f3 Kh1 Bh8 Re2 Bab2 Re4 Nd4 Qc6+
1KB3Bk/3rR3/N3pbbP/rn2NQ2/R3P3/Q1b5/1r1R1r2/qnQ1bq1R b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 h6 g5 Bb7 b3 Qd7 g6 Qd6 Bb2 Bc8 Bf6 Qd8 Bg5 hxg5 Kf2 c5 Kf3 a5 Ke4 f5+ Ke5 c4 d4 a4 h4 f3 e4 c3 g7 Kf7 b6 a3 d6 c2 h5 c1R d5 f4 b7 f2 d7 a2 h6 g4 b4 f3 d6 g3 b5 g2 b6 Ra5+ Bb5 f1R Nd2 f2 Rb1 Rc2 Ngf3 g1B Qc1 Nf6 Rb4 Kg8 Ra4 Nd5 Nb3 Na6 b8R Nac7 b7 Rh7 Ba6 Nc3+ Nc5 a1B Ra8 e6 b8Q Rb2 Qb4 Be7 Qa3 Nb1 Ra7 Nb5 Rb7 Qf8 d8Q Bd7 Qc7 Be8 d7 Bg6 d8R Bh4 Rd2 Qa8 Qb6 Bg5 Re7 Bh4 Bc8 Bf6+ Kf4 Qa7 Na6 Qa8 Qbc5 Bh2+ Kg4 Bg3 Qf5 Bc3 Kg5 Bh4+ Kf4 Bhf6 Rdd7 Be1 Rd2 Qd5 Rf7 Qa2 Rb7 Rb4 Ra7 Bac3 Rad7 Qa1 Ra7 Rh8 Rc7 Kh7 Rb7 Re8 g8B+ Kh8 Re7 Rd8 Ne5 Rb2 Ke3 Nd4 Kd3 Rd7 Kc4 Nb5 Kc5 Rg1 Kb6 f1Q Kc6 Rg2 Kb6 Rf2 Kc6 Rd6+ Kb7 Rd7+ Kb8
R5Qb/2KbB2k/1BNPN3/Qbq2r2/p1P2bRr/B5q1/3n1n2/1qR1q2B b - - 0 1 illegal: No proof kernel
2b1q1Q1/n1Nrn1q1/1B1pRb2/1q1R1P1B/rRbQ1B2/2qkP2K/1R6/N2b4 b - - 0 1 illegal: No possible last move, all moves rejected
8/2K1N2n/Qnp3NB/q1rRPq1n/1BQ2N1B/1Pnq2k1/4R3/1b1rq1bB b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 a5 g4 h5 e4 f3 g5 a4 d3 c6 b3 f4 g6 h3 g7 h4 b6 f2 b7 a3 Nd2 h2 Qg4 a2 Ne2 f3 Bg2 f1Q Kc4 Ke5 d6 h3 Kc5 f2 Nf4 Nf6 g8N Nh7 Ne7 Bf5 d7 Qe1 Bf3 Qc8 Kb6 f1Q d8Q Ra5 Ba3 Qe6 Rd1 a1Q Kc7 Nd7 b8B Nb6 Bb4 Rc5 Qc8 Qa5 Qa6 Qd5 Rg1 h1N Rg2 h2 Re2 Ng3 Bh1 Nh5 Qg8 Qd4 Qgc4 Bg7 Ba7 Rd8 Bb8 Bf6 Ba7 Bh4 Bb8 Bf2 Nf3+ Kf6 Rdd2 Bg1 Ne5 Kg5 N5g6 Kg4 e5 Rdd5 Ba7 Kg3 Rd1 Qe3 d4 Bb1 Rdd2 Rd8 d5 Qd3 d6 Qh3 d7 Qhf5 Be4 h1N Rd1 Qf3 Rd5 Qd3 Bf3 Nf2 Bh1 Rg8 d8B Ne4 Nc8 Nc3 Bh4+ Kg4 Nce7 Rd8 Bg5 Kg3 Bh6 Nba4+ Bb6 Rd7+ Kb8 Rd6 Bd8 Nb6 Kc7 Qa3 Rd4 Qa5 Ng8 Qdd2 Bf6 Qdc2 N8e7 Rd8 Rde4 Rd2 Rd4 Rd1 Rd5 Qcd3 Bh4+
N4QRr/1kq2Q2/1P3B2/qbbN4/1Q4p1/b1r1N2n/4bPK1/rn1rRB1Q b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 c4 a5 b4 e5 h4 d5 f6 Kd7 h5 Kc7 f7 g5 c5 e4 c6 g3 h6 a4 h7 a3 Ne2 g2 Ng3 g1R Rh6 d3 Bd2 a2 Qg4 e3 Qh5 e2 Rg6 g4 Rg5 d4 Qh4 Na6 Qh6 Bd7 Qh2 Nc5 Qh6 Nb3 Qg6 Nf6 Bc3 Bc5 f8Q Ne4 Qgf7 Ra3 Rg8 Nbd2 Nf5 Ng5 Ne3 Nh3 b6+ Kc8 c7 Kb7 c8N Qc7 Bb2 Bb5 Nc3 Nb1 Ncd5 Rc3 Nf6 Na3 Nfd5 Rh1 Rb1 a1Q Rd1 Nb1 Rc1 Kb8 b7 Qaa5 Ncb6+ Ka7 b8Q+ Ka6 Qbe8 Kb7 Qee7 Na3 Kd2 e1B+ Kd1 d2 Na8 Nb1 Qd6 Bd7 Ke2 d1R b5 Bd2 b6 Bb5+ Nc4 Ba3 Qb4 Bf4 Ba1 Bd6 Bb2 Bc5 Ba1 Rdd3 Nce3 Rd2+ Ke1 d3 Rd1 Ra2 Bb2 Ra1 Rc1 Rc4 Bf6 d2+ Ke2 Qd7 Re1 d1B+ Kd3 Rc3+ Ke4 Ng1 Kf4 Bde2 Kg3 Qc7+ Kg2 Rh3 Nc2 Rhd3 Nce3 Rd1 Rg5 Rg8 h8Q Nh3 Qhh5 Rh8 Rg8 Ng1 Qh2 Nh3 Qh1
RNkqr1Q1/2b1q1r1/qPb4R/QqRp1B2/RP6/K1bQN3/1n5B/4b1n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 d5 f4 Kd7 g4 h5 c4 a5 Kc2 e5 Kb3 h3 b6 d3 f6 a4+ Ka2 d2 b4 e4 f7 e3 f5 a3 f6 h2 g5 e2 c5 e1B g6 h4 g7 h3 Bg2 Ra7 Qa4+ Nc6 Qa6 d1Q Qe2 Qd3 Bb2 Qa6 Nd2 Bd6 f8Q Ne5 f7 Nh6 g8Q Nhg4 Qd3 Nc4 Be4 Nf2 Ne2 Bc7 Be5 Bb7 c6+ Kc8 Nd4 Nb2 Nc4 Qb5 Kb3 a2 Qc5 Qa6 f8R Ba8 Rg1 h1Q Ne3 h2 Rg6 Qf1 Rh6 h1Q Bh2 Nh3 Qa5 Ng1 Ka3 Qhf3 Re8 Qf7 Bf5+ Qe6 Qe4 Qfb5 Qd3 Bcg3 Rf8 Rg7 c7 Bd6 Nc6 Bdg3 Ne5 Bc6 Nd7 Qe7 Nb8+ Kb7 c8R Bc7 Rc1 a1B Rc3 Nd1 Rc5 Bac3 Nd7 Nb2 Ra8 B7e5 Nb8 Bc7 Be4 Kc8 Rf1 Bh4 Ra1 Bhe1 Bf5+ Qe6 Qh7 Re8 Qg8 Qed7 Kb3 Qe6 Ra4 Qed7 Ka3 Qe7 Be4 Qdd8 Bf5+
1n5N/4QqR1/qp3BB1/Q1Br1QPk/2rn2r1/q1RPq1r1/6Qb/1N3K1b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kf7 g4 c5 f4 h5 d6 e5 d7 b6 d3 c4 g5 h3 f6 Kg6 a5 b3 a6 e4 f7 h4 a7 c3 Qd2 b2 f5+ Kh5 f6 c2 Ra4 e3 Rg4 e2 Qb4 h2 Qd6 h3 Qe6 Qc7 d8Q Nh6 Rc4 Bb7 Qf5 Bd6 f8Q Qf7 Qb5 Nf5 Qde7 Nd4 Qa5 Bc6 Qc8 Rd8 Rc3 Rd7 Bd2 c1R+ Kf2 e1R Bg2 Re3 Be4 Rg3 Nf3 Bc7 Bh7 Rd5 Re1 h1Q Ne5 h2 Ng6 Qe4 Nh8 h1Q Qf5 Qhh4 Bf4 Qe3+ Kf1 Qg4 Be5 Qd1 Qf2 Qb3 Qf5 Rc2 Rc1 Qa3 Re1 Bd6 Rc1 Bb7 Rc7 Rc4 Rc3 Rdc5 Rd7 Bh1 Rc7 Rd5 Rd7 Qg7 f7 Qg8 f8B Qf7 Bf6 Bf4 Qd8 Be5 Bc5 Bf4 Qe7 Bd6 Nd2 b1Q+ Rc1 Qbb4 Rc3 Qb5 Nb1 Qa6 Rb7 Rg4 Rc7 Bh2 Rd7 Rg3 Rc7 Nbc6 Rb7 Re8 a8Q Nb8 Ra7 Re5 Qg2 Rd5 Qd6 Re4 Qde5 Qe6 Rg7 Qf7 Qe7 Reg4 Bg6+
1B1R2Nr/3B1r1r/P1KR1Q2/2nQNBqR/P4qq1/5kBq/b1p5/br2n3 b - - 0 1 illegal: No possible last move
3bqqNN/2N4B/PnbB1qBP/4k2n/r5Q1/1r1q4/1p1R2BK/Qn1n2R1 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Kg2 f5 d4 b5 h4 g5 a4 c5 e4 b3 a5 b4 e6+ Kd6 e7 f4 e8B f3+ Kg3 b2 h5 b3 h6 c4 Bh3 f2 Ra2 f1Q Nc3 b1N Nf3 Be7 Rg1 Bb7 Rd2 b2 Ne5 Qf6 Bg2 Bc6 Kh2 Nd7 Bg6 Qe8 Bh7 Bd8 Ng6 Nb6 Ne7 Qff8 Qe1 Nf6 Ng8 Nh5 Qh4 Rb8 a6 g3+ Kh1 g4 e5+ Kc7 e6 Kd6 e7 Qf6 Na2 c3 Nb4 c2 Qg5 Qef8 e8B Rb7 Bf7 Re7 Bfg6 Re4 Bh3 g2+ Kh2 Re3 Qf5 Ra3 Qf3 Ra4 Qg3+ Kd7 d6 Ke6 d7 Qe8 Qh4 Qef8 d5+ Ke5 d6 Qe8 Rh1 g1N Bg2 Ne2 Nd5 Nec3 Nc7 Nd1 Rg1 g3+ Kh1 Be7 d8Q Qef8 Qc8 Bd8 Qcg4 Qe8 d7 Qff8 B2e4 g2+ Kh2 Qf6 Qe1 Qef8 Rd4 Qe8 Bd2 c1Q Bb4 Qc2 Rd2 Qd3 Ba3 Be7 d8N Qef8 Nde6 Bd8 Ng5 Qe8 Ne7 Rf8 Ng8 Rf7 Bb4 Rd7 Qf1 Rd5 Be7 Rb5 Qe1 Rb3 Nf7+ Kd4 Nh8 Ke5 Qf2 Qef8 Bd5 Qe8 Qc5 Qff8 Qa3 Qf6 Qa1 Qef8 Rf1 Qe8 Bf3 g1Q+ Kh3 Qc5 Rg1 Qa3 Kh2 Qad6 Bd5 Qff8 Bg2 Qdf6 Bd6+
1Q2rqb1/NNq1b1n1/pN5B/3rQkB1/P2Rr3/1K1nRN2/2rP3b/Q6b b - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g6 f5 Qd5 Be2 Qd6 fxg6 Qd5 g5 Qd8 Bg4 hxg4 h4 Kd7 c4 Ke6 a4 b5 h5 f5 h6 a6 h7 b4 c6 f4 g7 f3 g6 g3 c5 f2+ Ke2 f1Q+ Ke3 g2 c7 b3 c6 b2 Nf3 g1B+ Kf4 e3 Ke4 e2 Na3 Bh2 Nc4 Nd7 Kd4 b1B Kc3 e1R Na5 Ne5 Bb2 Bb7 c8N Re4 c7 Nf6 g8Q+ Kf5 g7 Ba2 Qd5 Ne8 g8Q Ng7 Na7 Rc8 Rb1 Bc6 Nb7 e6 Rg1 Be7 Rg3 Bc4 Qd6 Nd3 Qe8 Rf8 h8B e5 Ba3 Rd4 Rb4 e4 Qa1 e3 Rh3 e2 Qe5+ Kg4 Kc2 Bg8 Rc4 e1R Kb3 Rde4 Bd6 Rf7 Rd4 Rc1 Bb4 Rc2 Bc3 Ra8 c8N Qc7 Nb6 Rd8 Ba5 Rd5 Qb8 Rf8 Bc3 Re8 Bb2 Nh5 Bf6 Ng7 Bg5 Qf2 Ne1 Qf8 Re3 Bd7 Nf3 Bde6 Qg3+ Kf5 Ba3 Bef7 Bd6 Bh5 Bdf4 Bg4 Bh6 Bh3 Bfg5 Bg2 Qd6 Bh1 Qe5+
3B2r1/qrb1QQP1/Qnr5/b1k2nK1/2B1Q2P/NrN4R/q1bp3R/N3b3 b - - 0 1 illegal: No proof kernel
6Bn/Q1Q1b1P1/bNr1NnqB/Np4RN/R1P1Qr2/6K1/4b3/1nb1k1nq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 g4 h5 f4 b5 Kf2 d5 a4 e5 g6+ Kf6 a5 h4 a6 d3 a7 b3 g7 b2 Be2 d2 Bf1 d4 Ra6+ Qd6 Ra5 d3 Ra2 e4 Qa4 d1B Nh3 d2 Bd3 Nh6 g8Q Nf7 Rg1 Ba6 Qh7 e3+ Kg2 e2 g5+ Ke7 g6 Kf6 g7 e1B Qa5 Be2 Ra4 d1N Nd2 b1N Nb3 Nf2 Qc7 Be7 Na5 Nd7 Bd2 Rab8 a8N Rhc8 Nb6 Nh8 Kh2 Rf8 Rg5 Rbc8 Be4 Qe6 Bd5 Qf7 Qa7 Qg6 Bg8 Rc6 Be3 Bd2 Kg2 Bc1 Qc7 Bea3 Qa7 Ke7 f6+ Kd6 f7 Nf6 f5 Ke5 Nf4 Ke4 Nh5 h3+ Kg3 Kd3 Bd2 h2 Bf4 Rd8 f8N h1Q Ne6 Rd4 Be3 Be7 Bd2 Ne8 f6 Rf4 f7 Nh3 f8Q Nf6 Qfb8 Ng1 Qbc7 Kc2 Be3 Kd1 Bd2 Qh6 Qe4 Qg6 Be3 Ke1 Rg4 Rf5 Bh6 Rf4 Rg5
KN1Q2rB/2bB2PP/b4R1r/r4bq1/1R1Q2q1/2b1QnB1/Q1pNn3/3kr3 b - - 0 1 illegal: No proof kernel
1Rq2kr1/3Q1Qp1/Q2P2q1/3B3Q/1Kn1r1Nb/6Bb/q2R1qPb/2n1RNb1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 e4 f5 b4 c5 d4 a5 Kd2 h5 Kc3 h4 e5 h3 d6 f3 e6 c4 e7 a4 d5 a3 b6 a2 b7 f2 b5 f4 b6 f3 Qe2 Rh4 Bb2 Nf6 Kb4 c3+ Kb5 c2 Qd1 c1B Bd4 Ne4 Kc4 Nd2+ Kc5 Qg3 Be3 h2 Bg5 Bh3 Bf4 Nd7+ Kb4 Ne5 Bc4 Qg6 Bg3 Nb3 Nd2 Re4 Nf1 Be3 b8R+ Kf7 b7 Nc1 Rb1 a1B d7 Bf4 d8Q Bd4 Bb3 Nc4 Qd7 Bf6 Ba2 Bh4 Rb2 Kg8 Rd2 Bc7 Ne3 f1Q Ng4 f2 Nf3 Qe2 Re1 h1Q Nfh2 f1Q Qb3 Qff2 Nf1 Qhg1 Qba4 Qff5 Qa6 Qa7 Bb3 Bb6 Ba2 Bg1 Bb3 Qef2 Ba2 Bg5 d6 Bf4 e8Q Q5c5+ Ka4 Qc8 Kb4 Be5 Bb3 Bf4 Qe5 Be7 Qee6+ Kf8 Ba2 Bh4 Bb3 Bh2 Ba2 Be3 Bb3 Na5+ Bc4 Bd4 Bd5 Nc4 Ne5 Ne3 Qd3 Qe2 Bb3 Qa2 Qa6 Qd8 Rc8 Rg4 b8Q Re4 Bd5 Nc4 Qbb5 Bdg1 Qba4 Qf2 Qd1 Qde8 Qh5 Qd8 Rc5 Qc7 Rb5 Rc8 Nf7 Kg8 Rb8 Re8 Rd3 Qc8 Nh6+ Kh7 Rd2 Rh8 Nf7+ Kg8 Nh6+ Kf8 Ng4 Rg8 Qef7+
2N1qB2/kn2rp2/qr6/4RN2/Q2BRQnb/1q1nq1P1/1P3N2/1B1nN1Kb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 c5 e4 Kc7 b6+ Kb7 d6 h5 d5 a5 g3 c4 d7 c3 e5 f3 d6 a4 e6 h3 e7 a3 e8Q c2 Be3 c1N Bd4 a2 Na3 h2 Nc2 h4 Qe4+ Nc6 Qee2 h3 Qe5 Nd3+ Ke3 f2 Ke2 Qe8 d8B Rb8 d7 Na5 Be7 Nf6 Qf4 Ng4 d8N+ Ka6 Rc1 a1Q b7 Qa2 Ne1 Qb3 Rc5 Ka7 Bg2 f1N Be4 Nfe3 Bf5 Bh6 Bf8 Bg5 Bh7 Bh4 Re5+ Qb6 Qa4 Nd1 Kf1 Rg8 Bc3 Qb3 Bf5 Rg6 Bd4+ Rb6 Re4 Ra8 b8N Bb7 Bg6 Bc6 Nb7 Bd5 Nd6 Bc6 Na6 Nb7 Ne2 Rd8 Rg1 h1Q Bh7 h2 Nc5+ Ra6 Re5 Rd7 Bf5 Qhd5 Nce4+ Qc5 Nf2 h1Q Bh7 Qh2 Rg2 Qh3 Kg1 Re7 Rh2 Bh1 Bf5 Nb4 Bb1 Nd3 Re4 Nge3 Re5 Qhe6 Rh3 Ng4 Re4 Bg5 Rh5 Bh4 Rhe5 Qh6 Bc3 Qe3 Nd4 Qf6 N4f5 Qfe6 Ba5 Rb6 Bc3+ Kb8 Bd4 Qf6 Qc4 Ka7 Qb5 Qfe6 Qd7 Qec4 Qa4+ Qa6 Nc8+
K2k2n1/n3PBNq/2r2QbN/R1R2nr1/1brp4/R1P2Q2/1n2r2B/B3qB2 b - - 0 1 illegal: No possible last move, all moves rejected
kn1bRq2/2B1P3/2B1n1N1/qp1Nbb2/2R1RnB1/bQQ2r1R/nPr5/1K6 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 e5 cxd5 exf4 Qc2 h5 Qc5 hxg4 Qxa5 Rh5 Qa7 Rh8 Kd1 Kd7 Kc2 f5 a4 g5 d4 b5 h4 g3 e4 g2 e5 g4 d6 Kc6 h5 g3 a5 f3 e6 f2 d7 f4 a6 f3 h6 Ne7 h7 Nf5 Be3 Ng7 Be2 f1Q Nc3 f2 Re1 Ba3 e7 Rf8 h8Q Ne6 Kb1 Rf3 Nh3 g1B Bf4 g2 Nd5 Bh2 Qg7 Qf8 d8R g1B Re8 Qg2 Be5 f1N Nhf4 Ng3 Ng6 Nh5 Bd6 Bf4 Rh3 Be5 Qf7 Nhf4 Qc5+ Kd7 Qb4 Kc6 a7 Kb7 Qc3 c5 Bc7 c4 Bd1 Qd2 Re4 Rd3 Bg4 Rf3 Qc1 Qa5 Qc3 Nc5 Qg8 Bf5 Rc8 Nce6 Qf7 Na6 Qg8 Rb8 a8B+ Ka7 Re8 Rc8 Bc6 Nb8 Bd7 Bf2 Ne3 Bg1 d5 Ka8 d6 Bf2 Nd5 Bb6 Qb3 c3 Qh8 c2+ Ka2 c1N+ Kb1 Bed4 Qf6 Bg1 Qfc3 Na2 Bd8 Ng7 Qcc4 Rc6 Ne3 Ba7 Be6 Ne2 d7 B7c5 Bb6 Nf4 d8R Bf2 Rc8 Bd4 Bd7 Nge6 Nd5 Be5 Qc1 Rcc3 Rc4 Bfd4 Qe3 Rc2 Qe1 Bc7 Qec3 Bd8 Bc7 Be5 Bc6+
N3Br1b/1qPnB2N/r3R1Q1/p5R1/1QkbBb1n/4RP2/nB3q2/K2n1b2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 b4 Ke6 c4 a5 Kc2 h5 Kb2 d5 g4 d3 g6 h4 g5 h3 g7 h2 f3 e3 g6 d4 c5 Kd5 c6 e5 b6 e4 b5 d2 b7 d3 b6 e2 Qc2 e1B Ra3 d1N+ Ka1 e3 Nd2 e2 Bb2 Qh4 Nh3 Bg3 Nc4 e1B Ng5 d2 Bd3 Nd7 b8Q Nh6 g8R Bef2 b7 Ra6 g7 Nf5 Nh7 Bf4 Re1 h1Q Re6 Bd4 Be4+ Kc5 c7 Qf2 Re3 Nh4 Nb6+ Nc3+ Qb1 Na2 Na8 Be7 Qg1 d1N Qg4 Ne5 Qg6 Bd7 Qf8 Bb5 b8B Nd7 Ba7+ Kc4 Bc5 Bef6 Be7 Qh3 Qb8 Qf5 Rc8 Qd5 g8B Qb7 Bf7 Rf8 Be8 Bh8 Rd8 Nf6 Rd5 Nd7 Rg5 Ba4 Rd6 Bc2 Re6 Bd3 Rg4 Bf1 Rg5 Qc6 Qb6 Qb7 Qb4+
3nqN2/qpRR4/4NQ2/1K1k4/BPNrbQ1b/3n4/1rQ1P2B/q1q2nnN b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 a4 Qb3 axb3 a4 Ke7 h4 Kd6 d4 c5 Kd2 g5 Kd3 f5 Kc4 f3 h6 f2 h5 g4 a5 g3 a6 g2 a7 b2 h7 f4 h6 f3 Kb5 c4 Nh3 g1N Na3 b1N Bf4+ Ke7 d6+ Ke6 d7 c3 Bh2 c2 Bg2 c1Q Nc4 f1Q Nf2 Qe7 d8Q Nd7 Qc7 Qe8 Qf4 Nd2 Ra2 Ne7 Rc2 Rg8 h8N Nc6 h7 Kd5 Ng6 Nd8 h8Q Be7 Nf8 Bh4 Qhf6 Rg4 Rc3 Qa3 Rd3 Qfa1 Rc3 Rb8 a8Q Nf1 Qa4 Ra8 Qc2 Q3c1 Rd3 Ra2 Rd1 Rb2 Rd2 Rg7 Bh3 Nc5+ Bd7 Rg4 Rd1 Nh3 Rg1 Nd3 Nh1 f2 Rg2 Rg8 Rg7 Qa7 Rf7 Rg4 Rg7 Qe4 Be8 Qg6 Rc7 Bf5 Ne5 Qca1 Qg3 Ke4 d5 Nf7 d6 Ne3 d7 f1Q d8N Ng1 Ndc6 Nd8 Bd7 Qe8 Nc4 Rf4 Rd2 Qfc1 Nd4 Nf1 Nde6 Bh7 Ne5 Bf5 Kc4 Bg6 Ba4 Rg4 Qc3 Ne1 Rdd7 Nd3 Kb5 Bh7 Nc4 Bf5 Nd6+ Kd5 Qc2 Rd4 Qf4 Be4 Nc4+
B2nbN2/1pr1N3/3NP1nK/6P1/Br1qBqQ1/5qn1/2n1Rb2/QR1qB2k b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 a4 Ke5 e4 f5 g4 h5 a5 c5 g6 b3 g7 b2 a6 c4 d3 h4 d6 h3 a7 c3 d7 c2 g5 h2 Nc3 b1N Nh3 Na3 Bd2 c1Q Rb1 Nc2 Nb5 Rh4 Be1 Nc6 Bg2 Nge7 g8B Ng6 Bb3 Bc5 Nd6 Bf2 Ba4 Qb2 Rg1 h1N Qe2 Qf6 d8N Ng3 Ne6 Nd8 Nf8 Bd7 Rf1 Kd4 e5 Rc8 a8B Be8 e6 Rc7 Rh1 Kd5 Rh2 Qbd4 Bh1 Na3 Qb2 Nc2 Qa1 Qfe5 Ng1 Qf6 Ne2 Ke5 Nc3 Rg4 Kg2 f3+ Kh3 Kf4 Rg2 Ke3 Nd5+ Ke2 Ne7 Kf1 Rh2 Kg1 Bg2 Qf4 d4 Q6e5 d5 Qfd4 Nf7 f4 d6 Qf5 d7 Qfd3 Bf1 Qd1 Rg2+ Kh1 Bd3 Bg1 Be4 f2 Nd6 f1Q Bb4 f3 Be1 Qfc4 Rd2 Bf2 Re2 Nc6 d8Q Qcc3 Qd7 Nd8 Qb5 Qce3 Qa5 Qf4 Qf5 Be3 Bd3 f2 Be4+ Qf3 Rd2 Rf4 Qg4 f1Q+ Rg2 Qfc4 Rd2 Bf2 Re2 Rf5 Nc6 Rb5 Ne7 Nh8 Kh4 Rb4 Bd3 Qdf4 Be4 Qcd4 Nf7 Nf5+ Kh5 Ng6 Nd6 Ng3+ Kh6
1n3r2/PQ1bbBr1/3q1BNK/1P2q2R/r2k1nR1/1Bb5/r1pQ2b1/1B3N1Q b - - 0 1 illegal: No proof kernel
B1r1q1nK/PRqbb2N/3Q1P2/1NR1pBn1/1N2r3/5k2/3n1Bq1/2nQ1B1q b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 h5 g4 b5 d4 e6 a4 e3 f4 c4 a5 c3 a6 e2 d6 e1Q+ Be3 c2 d5 c1N f5+ Kh7 d7 h4 a7 h3 g6+ Kg7 d6 h2 g5 b3 Ra5 b2 Nh3 b4 Nc3 b1N Rc5 b3 Nb5 Qe7 d8N b2 d7 Qe2 Nc6 Nd2 d8Q b1Q Nb4 Qc2 Qd6 Qg2 Bf2 Rh4 Rg1 h1Q f6+ Kh8 g7+ Kh7 g6+ Kh6 Ng5 Bd7 Nh7 Rf4 Nd5 Ra4 Nb4 Qe8 Kf4 Na6 Ke5 Ne7 g8B Nc7 g7 Rc8 Bf7 Ng8 Bg6 Be7 Bf5 Qd5+ Kf4 e5+ Kg4 Ne6 Rg3 Bf8 Rb3 Ng5 Rb1 Qb7 Rb2 Qc7 Rb1 Ne7 g8B Qa2 Bb3 Ng8 Bd5 Be7 Ba8 Qad5 Be6 Qdb7 Kf5 Qbg2 Nd5 Rg4 Nb4 Kh5 Rb2 Qg3 Rb3 Kh4 Rb2 Re4 Rb3 Qf8 Kg6 Qfd8 Kg7 Qe8 Be3 Qg4 Kh8 Qgg2 Bf5 Kg3 Bf2+ Kf4 Nc2 Rd8 Nc3 Rc8 Rb7 Ncb3 Nb4 Nc1 Qe1 Kf3 Nb5 Re3 Qd1+ Re2 Qe1 Re4 Qd1+
Br1R2bN/P1R1KR2/1BP2RQ1/q1r3q1/2rb2p1/1B3NkQ/br2n2n/4b3 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Kd2 Kf7 Ke3 Kf6 Kd4 d5 c4 g5 f4 b5 h4 e6 a4 g3 a5 g2 c6 b3 c5 b2 h5 b4 c7 b3 h6 Ra7 h7 Bg7 a6 Nh6 Qd3 Ng4 Na3 b1R Nc4 b2 Be3 Nh2 Nf3 g1Q Nd6 g4 Be2 Qe1 Rf1 Qa5 Nf7 Rc1 Rb1 Rb7 a7 Rc3 Rbd1 b1B Rc1 Rb2 Bd1 Ba2 Bb3 Ba6 c8B Bc4 Bb7 Qg8 Bg1 e5+ Ke3 d4+ Ke4 Nc6 Ba8 Qgd8 Rfd1 Rf8 Nh8 Bg8 Qc2 d3 Bf2 Ke7 f6+ Kd7 Kf5 d2 f7 e4 Kg6 e3 f5 e2 f6 e1B Qe4 Re8 f8R Nd4 f7 Ne2 Kf5 Bd4 Qe6+ Kc7 Qg6 Qh4 Be3 Rc8 Ke6 Rb8 Bf2 Qh6 Ke7 Rc4 Rd8 Qh5 f8R Qf5 c6 Qg5+ Rf6 Rc5 Rc2 Rc4 Rb1 d1R Rd2 Rdc1 Rd7+ Kb6 Rc7 Kc5 Bg1 R1c3 Rbd1 Kd5 Rc2 Nc1 Rf2 Ne2 Rd3 Qf5 Rd1 Ke4 Rf1 Kf4 Rf7 Bg7 Bb6 Kg3 Rd8 Rcc2 Nd2 Qg5+ R1f6 Rc5 Nf3 R2c4 Rd3 Bh6 Rd8 Qh5 Qg5 Bf2 Ng6 Be1 h8Q Qh4 Qf5 Be3 Qh6 Qg5 Nh8 B3f2 Qfg6 Bd4 Qh3+
Q1N2K2/pRBB2N1/2P2R1N/1n2R1k1/1r4r1/3bbnqr/P3rQ1b/b3qR2 b - - 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 exf4 Kf2 Ke7 e4 Kf6 d4 b5 h4 g5 d6 b4 h5 g3+ Kf3 g2 c6 b3 h6 b2 h7 Qb6 d7 Qb4 Kg4 f3 Kh5 g4 d8N g3 d5 f2 d6 Ba6 d7 Qb3 Ne6 Nh6 d8R Nf5 Qe1 Nh4 Ng7 Nf3 Kh6 Bd3 Rd7 Na6 Na3 b1R Rb7 Re8 Ne2 g1B Nb5 g2 Bf4 Nc7 Ned4 Bh2 Nf5 g1B Bh3 f1R Nbd6 Be3 Nc8 Rg1 Qf2 Rg4 Rf1 Rb2 Rab1 Nb5 Rbc1 Qa3 Rc5 Rb4 Re5 Bd4 Bg3 Ba1 Bf4 Bc5 Bg3 Rhg8 h8Q Be3+ Kh7 Kg5 Nh6+ f5 Re6 f4 Rf6 Be2 e5 Rh4 e6 Bd3+ Bf5 Rh3 e7 Nh4 Qg2 f3 Qf2 Qc3 Bc7 Qe1 Qe2 Qg3 Qb2 f2 Qc2 Ref8 e8R Nf3 Re5 Rd8 Qe2 Rdd4 Qb2 Re8 Qc2 Re6 Kg8 Rg4 Kf8 Re7 Re1 f1Q Qf2 Qe2 Rf1 Qe1 Bd7+ Kh4 Ref5 Na3 Nd6 Bd2 Kg8 Re2 Re5 Nb5 Kf7 Be3 Qa8 Rb1 Kf8 Rbb4 Ngf5+ Kh5 Nc8 Kg5 Ng7+
NB2kB2/rq5b/1R1bpq2/N1B3Qb/3QP3/qPqB4/R5K1/1r1qq1Rn b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Ra4 Na6 Ra1 Nc5 Kd2 Ne4+ Ke1 fxg4 Ra5 g3 Ra2 g4 Ra1 Ng5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 c4 d5 f4 h5 g6 a5 g7 d3 c5 d4 c6 g2 Kf2 h4 e3 a4 f5 a3 b3 h3 c7 a2 f6 h2 b6 d2 b7 g3+ Kf3 d3 b8B Ra7 Qe2 d1Q Nh3 g1Q Nd2 g2 Ba3 Bf5 c8Q e6 Qc4 Ne7 g8R Bh7 Nf4 Nf5 Bc5 Ng3 Nd5 Qe7 Nb6 Qf2+ Kg4 g1Q Kh3 Qfe1 Qd4 Qgf2 Rg1 Nh1 Ndc4 d2 Na5 Qb7 R8g2 Bd6 e4 Qc2 Qec4 d1Q Bd3 Qcc3 Qcd5 Qfb2 Rg5 Qa3 Na8 Rg8 R5g2 Rf8 Rc1 a1Q Ra2 Rg8 Rcc2 Rg2 Rc1 Rb2 Qg5 Rb1 f7+ Kd7 f8B Ke8 Qf2 Qf6 Kg2 Qac3 Qgh4 Ng3 Qg5 h1B+ Kh2 Bf3 Qd4 Bh5 Kg2 Nh1 Rcc2 Qa1 Rc4 Qac3 Rb4 Qh6 Rb5 Qf6 Rb6
q1n1bNBq/3q2N1/R1p2P1k/r2Q2Q1/4Qr1n/q1P1R1N1/q1q1Qr2/2B1K3 b - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 f5 Rh3 Bh6 Rh2 fxg4 Rh1 g3 Rh2 g4 Rh1 Bg5 hxg5 Qd4 Rh2 Qd6 Rh1 Qd8 b4 Kf7 d4 Kg7 f4 a5 c3 e5 f5 h5 d5 h4 b6 g2 d6 e3 b5 h3 b7 e4 b6 c6 g6 e2 d7 h2 Ra3 a4 Qd5 g3 Bd2 Nh6 Qa5 Rf8 Ra2 a3 Qd5 Ra5 Rc2 a2 Bc1 a1Q Qd3 Qa3 Nf3 g1R Nd4 Rg2 Qc4 Rf2 Nd2 g2 Ra2 g1Q Qb4 Qe8 d8Q Qg4 Qd5 Nd7 b8N Qe6 b7 Nb6 Bh3 Bd7 Nf1 Nc8 Ng3 Be8 Nd7 Rf6 Rf1 h1Q Nf8 Qd7 b8Q Qh5 Qb1 Qh2 Q8b2 Rf7 Nh1 Qb8 Qbb5 Qa8 Ng3 Rf4 Rf3 Qh4 Re3 Qhd8 Kd2 e1Q+ Kc2 Rf6 Qe2 Qf2 Kd1 Qg2 Ke1 Rf2 Rf3 e3 Ra1 Qa2 Qbe4 Q8e7 Bg4 Qea3 Bh5 Nf7 Bg4 Nh8 Nde6+ Kh6 g7 Ng6 g8Q Nh4 Ng7 Qc2 Bh5 Qh2 Bf7 Qaa2 Nh1 Qhd6 Rh3 Qda3 Ng3 Rf4 Rb1 Rf2 Rb6 Rf4 Ra6 Rf2 Q2d3 Rf4 Qd2 e2 Rh2 Kg5 N7h5+ Ng6 Be6 Rf7 Rf2 Rh7 Rf3 Rh6 Kf2 Rh8 Qg7 Rh7 Bg8 e1Q+ Kg2 Rh8 Qde2 Qh1+ Kf2 Rh7 Qge5 Rh6 Ng7 Rh2+ Ke3 Rf2 f6+ Kh6 Q5f5 Qh5 Qfe5 Nh4 Q5f5 Qg6 Qg4 Qh7 Qgf5 Qa2b3 Qfe5 Qcb1 Kd2 Qh8 Ke1 Q1c2 Re3 Qba2 Qg5#
1Q1nn3/q1rNnb2/B3Nb1N/BpBPbR2/1Rb5/Bbb2qQ1/1P1k4/1K6 b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 a4 hxg4 a5 b5 Bg2 a6 Bh3 Ra7 Bg2 Rb7 Bf1 Rb6 axb6 a5 e4 Ke7 d4 Kf6 Kd2 Kg5 Kc2 f5 b7 c5 h3 c4 d6 a4 d7 c3 e5 a3 d5 a2 e6 g3 e7 g2 e8N Nf6 Nc7 Be7 Ne2 g1N Ng3 Ne8 Qe1 Ne2 Nh5 Nd4+ Kd1 c2+ Kd2 f3 Nf4 f2 Ng2 f4 Qe6 f3 Qa6 Bf6 Nc3 Nf5 Ne3 Kf4 h4 g5 h5 g4 h6 g3 h7 g2 Ne4 g1B Ng4 Ne7 Rh5 Bh2 Nh6 Nbc6 Bh3 f1B b8Q f2 Nc5 Bc4 Qa3 Bb3 N7e6+ Kf3 Kd3 Bhe5 Bf4 c1B Rf5 Bd2 Rh1 Rg8 h8B a1Q Rc1 Qa5 d8B Qa7 Rc4 Bdc3 Rb4 Qh1 Ba5 Rg7 Nd7 Rf7 Bg7 Nd8 Bf8 Qg2 Nb6 Qg4 Be3+ Qf4 Bc5 Rg7 Nc7 Be6 Nd7 Bf7 Ne6 Ba2 Kc2 Ke2 Qb7 f1B Qb8 Bb3+ Kb1 Kd2 Bg4 Bfc4 Bh3 Ba4 Qb3 Bcd4 Qf3 Bab3 Qg3 Qf3 Nb6 Ng8 Ng5 Kd3 Bce7 Bd6 Ra4 Bd6e5 Rf4 Bc7 Ba3 Bc3 Bfc5 Kd2 Rb4 B7e5 Bc8 Bh5 Ne6 Rc7 Ba6 Ne7 Rf5 Bf7 Nd7
Q2R1k1b/NB1n3q/p3nb2/bBQR2BP/3q2Rb/P2N3K/7b/1r2q1Rb b - - 0 1 illegal: No possible last move
Nr6/2nB2KN/Q2nRRpQ/B1b1n3/1q3N2/4P1P1/b1NRn1q1/2qk1qq1 b - - 0 1 illegal: No possible last move, all moves rejected
2nnbR1Q/4p1Rr/B1q4n/1Qb3N1/kBB1P1q1/1b6/1R2q2P/1RK2bNq b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 Ra5 hxg4 Ra2 Na6 Ra1 Nb8 f4 g5 Qd3 a5 Qe3 g3 Qd2 g4 Qd3 Rh5 Qd1 Rg5 fxg5 Ra6 Bf4 Rh6 Bc1 Rh8 Kd2 d5 b4 Kd7 e4 f5 c4 d3 c5 d4 g6 f4 b6 Kc6 g7 Kb5 c6 f3 b7 f2 c7 a4 Qf3 g2 Qe3 g3 Bb2 a3 Bc3 a2 Ne2 g1N Bb2 g2 Qh6 Nf3+ Kc1 g1Q Qg6 d2+ Kc2 d1B+ Kc1 d3 Qh7 Nc6 b8Q+ Ka4 b5 Nd2 b6 Nc4 b7 Nd6 Qh6 Bd7 c8R Rh7 Qh3 Qg4 Rg1 Be8 Bc3 Nh6 g8B Bb3 Bc4 Bg7 Nd2 Qdd7 Rb1 a1Q Nf3 Nd8 Ng5 Qc6 Bb4 Bd4 Rg2 Bc5 Ng1 Qe2 Qf5 Qg4 Qf6 Qa2 Qh8 Qae2 Ba6 Ndf5 Qbe5 Nd6 Ra8 Nc8 b8R Qcd7 Rb6 Qb5 Rg6 Qc6 Rg7 d2+ Kb2 Qef3 Bfc4 d1Q Qb8 Qde2+ Kc1 f1B Qe5 Qed3 Rgb2 Qde2 Qb8 Ndf7 Qd6 Na7 Bd3 Bd7 Rc8 Qh1 Rf8 Nc8 Qb8 Nd8 Bdc4 Be8 Qb5+
KRr1R1r1/Q6p/4Nn2/N6b/B1PBr3/2Q1b1RP/1bB1Rbr1/nk2n1n1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Bh3 Qg5 Bg2 exf4 Bf1 f3 Nd2 f4 Nb1 Qf5 gxf5 Kd8 Qd2 Ke7 Qd1 Ke8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 b6 d5+ Kb5 g5 c4 a5 f6 f2 b7 d3 Kb6 f3 e3 d2 f7 g4 h3 a4 b5 d4 Qe1 d1N Rh2 a3 Rh1 a2 Bd2 d3 Be2 f1R Na3 f2 Rh2 g3 Rc1 a1B Bh5 g2 Be2 Nf6 Rc3 Nc6 b8Q Nb2 Nc2 Nd4 Bd1 Rg8 Ne2 g1B Qa7 Bg4 Kb7 Bh5 b6 Bc5 f8R Rc8 Nf4 Nb3 Nb4 Bd4 Bc1 d2 Nc6 Nd3 Bc2 d1R Bb2 Rd2 Na5 Re2 Qd2 Rfe1 Ne6 f1N Re8 Bf2 Qc1 Ng3 Rg2 Kf3 e4 Bde3 e5 Ke4 Rh2 Rg1 Qe1 Rg2 Qc1 Rc5 Ka8 Re1 b7 Ne2 b8R Rc8 Qd2 Ng1 Qc1 Nd4 Ra3 Nb3 Bd4 Bb2 Qd2 Na1 Qc3 Bf3 Nd8 Bd1 e6 Bh5 e7 Re2 Ne6 Re1 Rd8 Re2 e8B Re1 Bb3 Re2 Bea4 Ne1 Qb4 Kd3 Re8 R2g4 Rg2 Re4 Ra2 Rd2 Rg3 Rc2 Qa3 Kd2 Qb4+ Kc1 Qc3 Kb1 Rf3 Bh4 Rg3 Rg2 Bd1 Bf2 Bdb3 Bg5 Bd1 Bge3 Bdb3 Bbc1 Re2 Bb2 Bc2+
Q1rQ3Q/n1q5/1b2KNk1/1Q3N1q/4P3/1pP1r2p/1b1BBNbr/nR1qR3 b - - 0 1 illegal: No proof kernel
7B/1BqQqqn1/1rQ1b3/1QBR4/bb1pRr2/N1pQn1NP/1k3P1K/3r4 b - - 0 1 illegal: No proof kernel
n2kB1B1/4rNb1/n1bq4/1RN1R3/1pP1Qp1B/q3rP1R/QB1b2K1/1r1n4 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 e5 dxe5 gxh4 axb5 c5 b4 cxb4 e4 a5 g4 f5 c4 h5 f3 d5 Kf2 h3 g5 f4 b6 d4 g6 a4 b7 a3 e6 d3 e5 h4 g7 a2 e7 h2 Qb3 h3 Nc3 d2 Bd3 Ra3 Na4 Qd6 Nc5 Rh7 Bb2 Nf6 g8B Na6 b8B Bg7 Bc7 Nd5 Bd8 d1N+ Kf1 Be6 Bg6+ Bf7 Qc2 Nb6 Qb1 Re3 Qe4 Nc3 Rd1 a1B Rd5 Na8 Qb1 Qe6 Qa2 Qb6 Nb7 Qd4 Rb5 Nd1 Bh5 Kd7 e8R Qd6 Bh4 Bd5 e6+ Kc7 e7 Bc6 Bg6 Bc3 Nc5 Bd2 Rd8 Rf7 e8Q Rg7 Qe4 Re7 Rd7+ Kc8 Ra7 Kd8 B6f7 Qg6 Be8 Qd6 Bc1 Bg7 Bb2 N6c7 Raa5 Na6 Ne2 Bdc3 Ng3 Bd2 Rg1 h1R Nf5 h2 Kg2 Nc3 Ra1 Rb1 Nh6 h1Q+ Kf2 Qd1 Kg2 Qa4 Nf7+ Kc7 Qh7 Qa3 Qe4 Rh1 Rc1 Rhe1 Rc2 Rb1 Rc1 Kc8 Rh1 Nd1 Rh3 Kc7 Nb3 Kc8 Re5 Kc7 Nc5 Kc8 Rb5 Kc7 Ng5 Kd8 Nf7+
r2kbK2/5B2/R1Q4r/2Q3pR/n1QqPn2/3QpNbq/P1q4n/N2N1bB1 b - - 0 1 illegal: No proof kernel
n2Q3R/1BR2KBb/N3rn1b/1N3p2/1p1nrR1P/8/2q1qq1P/1bQ1BkR1 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 b4 h5 g3 h4 gxh4 a5 Ba3 axb4 Bb2 Bd7 Bc1 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 b5 a4 c5 d6 g5 a5 f3 a6 f2 d5 g4 d7 g3 d6 g2 a7 b3 Bd2 b4 Be1 b2 Nf3 g1N e4+ Ne2 Qc1+ Kd3 Nd4 c4 Nc3 b1B Ne6 Na6 Nb5 c3 Rg1 c2 Bg2 f1Q Nec7 Bh6 Bf3 f5 Ke6 Nd4+ Kf7 Nf6 e5 Re8 e6 Qf2 Bb7 Ke2 e7 Rb8 Rg4 Kf1 a8R Qe2 Ra7 Qf2 Ne6 Nc7 Rf4 Na8 Nc5 Qc7 d8B Be6+ Kg6 Bc4 d7 Bg8 Na6 Bh7+ Kf7 Qe5 Bb6 Qe4 d8Q Qe2 Bc7 Rc8 Bb8 Rc4 Be5 Nh5 Bg7 Nf6 Bc8 Rc6 Rc7 Re6 Bb7 Re4 Qb2 c1Q Qc3 Rg8 e8R Qcc2 Qa3 Re6 Qc1 Re4 Bh8 Rg3 Bg7 Rge3 Rh8 Re6 Ra3 R3e5 Rg3 Re4 Rg1+
2B5/q1Q1Q3/1r6/1B1nP2K/3Rb3/rr1b1Rpp/1Nq1P2B/nN1kbNNq b - - 0 1 illegal: No proof kernel
K2krB2/1Q1n1q1b/N5R1/2pBnR1r/Q2R1b1B/Pqn3N1/r2P1p2/q1R5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 f5 Kf3 b5 e4 g5 h4 b3 h6 c6 h7 b2 h5 b4 h6 b3 d6 Bd7 e5 Qa5 e6 Bg7 e7 Qe5 Nc3 b1R Na4 b2 Qb3 Qe6 Nc5 Nf6 Na6 Ng4 Ne2 Be5 Rh5 c5 a3 Ba4 Qb7 Bc2 Ng3 Nd7 Bc4 Qg8 Bd5 Qf7 Ra2 Ra1 Rh4 b1N Bb2 Rc8 Bc3 Bd3 Rc2 Ra2 Rc1 Bc2 Bd4 Nc3 Rh5 Rd8 Bf2 Rb8 Bc6 Qb3 Bd5 Rf8 h8B Rf6 h7 Rh6 Rh4 Rh5 Bg7 Bb1 Bf8 Ra8 h8R Rd8 Kg2 f3+ Kf1 f4 Rg8 Bh7 Rg6 Ra8 Be1 f2 Kg2 Rc8 Kf3 Rd8 Rh2 f1Q+ Rf2 Qfc4 Bc6 Qf7 Bd5 Nb1+ Ke4 f3 Be6 Bf4 Bc4 Qg7 Kd5 Nc3+ Kc6 Qf7 Bd5 Nge5+ Kc7 g4 Rf1 Nb6 Bf2 Rd7+ Kb8 Rd8+ Ka7 Nbd7 Be1 Nb8 Ka8 Rc8 Nh1 g3 Bf2 g2 Bh4 g1Q Ng3 Qd4 Rf2 Nd1 Rf1 Qa1 Rf2 Nc3 Rff1 Qe6 d7+ Kf7 d8R f2 Qa7 Nf3 Rfe1 Nd1 Bc6 Nc3 Re5 Qec4 Rd7 Ke8 Rf5 Qf7 Be4 Rd8 Rd3 Rc8 Bd5 Rd8 Qb6 Kd7 e8Q+ Kc8 Rh1 Ne5 Qa4 Re8 Rd4 Nbd7 Rg1 Rg5 Qb7+ Kd8 Rgf6 Rh5 Rc1 Be3 Re6+ Bg5 Ref6 Bf4 Rg6+
1Q1Q1n2/Br6/2N2rqn/1p4nk/4b1Pq/1N1bp1R1/1NrbP2R/N2BR1K1 b - - 0 1 illegal: No possible last move, all moves rejected
b6r/q2Q3R/1N1B3b/npnPR3/p5KB/B1QR1BPr/N1rn2b1/k4q2 b - - 0 1 illegal: No proof kernel
2r1N2q/3Q2Bn/2Br2q1/1pP2Bnk/1R1N3P/1r3NbB/q2R1pQb/2K4b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 d5 c4 g5 h4 f5 e4 Kf7 a4 b5 c5 g4 a5 b3 a6 b2 a7 g3 h6 Kg6 e6 g2 e7 d3 e8N d4 e5 f4 h7 f3 e6 f2 e7 Nd7 Na3 b1Q Nc7 Qa2+ Nc2 Bb7 Rb1 Nh6 e8B+ Nf7 Qe1 Kh5 Nf3 g1B Rh2 Nf6 Rb4 Bd6 Qe6 Bg3 Rh1 B1h2 Bc6 Ng5 Qd7 Qf8 Kd1 d2 Bh3 Qh6 Bf5 Qg6 Bb2 Rhc8 h8Q+ Nfh7 Qhg7 Be5 Ne8 Beg3 Ke2 d1R Bh3 Rd3 Rd1 Rb3 Kd2 d3 Ncd4 Rd8 Kc1 Rac8 Rd2 Ba8 Qe6 Rd6 Qed7 Bb7 Be4 Bd5 a8B Bc6 Rc2 Bd5 Bef5 d2+ Kd1 Be4 Bc6 Bd5 Ne1 Bg2 Nef3 Bh1 Ra4 Qf6 Ne6 Ne4 Rb4 Be5 Qg2 Neg5 Bfe4 Qh8 Ba1 Bef4 Bg7 Bfg3 Ned4 Bg1 Bd3 B1h2 Ke2 d1Q+ Ke3 Qf1 Kd2 Qe2+ Kc1 Qe6 Bdf5 Qg6 Rd2
4qnr1/N1B5/k4r1Q/ppn1B1Qb/1RB3PK/r1RPb2N/7R/1bqnR3 b - - 0 1 illegal: No proof kernel
1Q2B2Q/1knr4/n2BbR1P/q1q3Nq/4NQp1/pbBr4/1b3QP1/1nR1K3 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 Qd3 e5 Qg6 exf4 Qxh5 Nf6 Qh7 Ng8 c4 g5 e4 a5 b4 f5 h4 d5 c5 a4 c6 d3 h5 f3 e5 f2+ Kd2 d4 e6 a3 e7 f4 b6 f3 c7 Kd7 b5 Bg7 h6 Na6 b7 Nf6 b8Q Ne8 b6 Kc6 b7 Ra7 Qa8 Be6 c8Q+ Nec7 b8B+ Rb7 Be2 f1Q Bb2 f2 Nf3 Qg1 Bc3 f1N+ Ke1 Nd2+ Bf1 Qd5 Qe4 Rd8 Qf4 Qa5 e8Q+ Rd7 Qa7 Rb3 Qcd8 g4 Qc5+ Kb7 Qcf5 Qh2 Ng5 Qh5 Qh8 Be5 Bb4 Qc5 Nc3 Nb1 Nce4 d2+ Kf2 d1Q Bc3 Bf6 Bb5 Qd2+ Kf1 d3 Ba4 Rg7 Be8 Rd7 Qf2 Bg7 Q5f4 Bf6 Rh3 Bd4 Rf3 Be5 Bb2 Qda5 Bc3 d2 Ke2 d1B+ Ke1 Nd2 Rc1 Nb1 Bd2 Rbd3 Bc3 Nd5 Bd6 Bb3 Q4g3 Ndc7 Rf6 Bd4 Qgf4 Be5 Bb4 Ba1 Bc3 Bb2 Qb8+
6rn/1n1R1q1B/2rrqbQP/1b2RqPK/2N3p1/2Rp3Q/n2N4/B2k1QR1 b - - 0 1 illegal: No possible last move, all moves rejected
4kqQ1/KN1Q2B1/B1r1q2P/rqP5/N3N1pn/R1nR2p1/3bR1Rn/5bb1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 g5 Kd3 d5 h4 e5 f4 a5 c4 g3 b4 a4 b6 g4 f6 a3 b5 a2 c5 Na6 b7 Bd7 b8R Rh6 h5 Be7 b6 Nc7 b7 Nb5 f5 Ra5 Nf3 Nc3 Bb2 Ba4 Nfd2 Bb5+ Nc4 Bf8 Nd2 Ne7 Rh2 Ng6 Re2 Nh4 Ne4 Rg6 Rc8 Bh6 b8N Bd2 h6 Ba6 Rc7 Qd7 Rc6 Qe6 Nd7 Bb5 Qa4 Ba6 Rd1 a1B Rc7 Bb5 Ra7 Ba6 Nb6+ Bb5 Kc2 d3+ Kb3 d4 Kb4 Rg5 Nf2 e4 Ra6 e3 Ne4 Rg6 f7+ Kd8 Rg2 e2 f6 e1N Ncd6 Nef3 Be2 Nh2 f8R+ Qe8 Rg8 Qf8 f7 Ke7 Nb7 Rc6 Ba3 Bb2 Bf1 Bbc1 Bb2 Be3 Rdd2 Bg1 Rde2 d2 Rg6 d1Q Rd6 d3 Ba1 d2 Rd3 Nb1 Bg7 Qe1 Qd1 Nc3 Na4 Qf2 Ra7 Qf6 Ra8 Qe6 Ra7 Qd8 Ra6 Qdd6 f8Q+ Kd7 Qg8 Ke7 Qb3 d1Q Qd5 Bd2 Ra8 Qf4 Ra7 Qf8 Ra8 Ra7 Qd4 Ba6 Ka5 Qdb3 Qd5 Rc8 Qd4 Ke8 Qd6 Bb5+ Kb6 Ra5 Ra6 Rc7 Ka7 Rc6 Nb2 Ra1 Ra3 Bc4 Na4 Qb5 Qc7 Qb1 Rd4 Qb4 Re1 N2f3 Nb2 Nb1 Ra5 Nc3 Rd5 Bb3 Ba6 Nh2 Rd7 Bd1 Rd3 Be2 Ra2 Bf1 Ree2 Qb5 Ra5 Ra4 Qd6 Rb4 Ra3 Ra4 Qd5 Ra5 Na4 Qc4 Qd6 Qb5 Qd7+
5K2/1n2N1B1/bb1RQpr1/r1RBPP2/2bqr1q1/4N1k1/Q2n2pN/2Q3nQ b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 hxg4 a4 e5 axb5 exd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 a5 h4 g5 f4 d3 c4 d2 h5 a4 c6 g3 c5 Kg4 b6 d6 f5 g2 e4+ Kg3 e5 a3 b7 g4 c7 a2 h6 Na6 c6 Nc5 b8Q Ba6 c8N Nb7 Nf3 g1N c7 Nf6+ Kc6 d5 h7 d4 Nh2 d3 Bg2 Ra7 Bd5 Bc5 Qa8 Bb6 Ne7 Ne4 c8Q f6 Nc3 Rg8 h8Q Rg6 Qe6 Qg8 Qf1 d1Q Bh6 d2 Rc1 a1R Kd7 Ra4 Bg7 Bc4 Rc2 R7a5 Qa6 Qa1 Nd1 Qd4 Ne3 d1B Qh7 Bde2 Qc1 Rb4 Qa7 Ba6 Rc5 Bec4 Qh6 Nd2 Qh8 Qh7 Ke8 Qh3 Kf8 Qa1 Qc8 Ne2 Nd1 Kf4 Ng8 g3 Qh4+ Qg4 Bh8 g2 Qh6+ Kg3 Bf7 Bd5 Nf3 Ra3 Bg7 Nb1 Ne3 Bb5 Rd1 Ng1 Qh1 Re4 Nh2 Bdc4 Rd6 Qd4 Bd5 Nd2 Qe6 Ra1 Qaa3 Ba6 Ne7 Ra2 Qab2 Ra5 Qa2
KB3r2/Q1bR1RQr/4qp2/1p3nB1/1N1n1bb1/k3NP2/1NP1n1qq/1R5N b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 b4 c6 e3 Bg7 b6 Ne7 b5 Ng8 b7 Bh6 b6 Bf8 Bb5 cxb5 Kd2 Ke7 Kd3 d5 Kd4 a5 Kc5 h5 g4 f6 e6 a4 f3 h3 g5 h2 e4 d4 e5 h4 g6 a3 g7 d3 Nh3 a2 Na3 d2 Rb1 a1B Nc4 Bd7 Nf2 h3 Nb2 Qe8 Qg1 d1Q Bg5 Nh6 g8Q Nc6 b8N Qd2 b7 Rh7 Kb6 Nd4 Na6 Nhf5 b8B Bh6 Kb7 Qe2 Qg6 Qf1 Nb4 Qg2 Qg7+ Qf7 Ba7 Rf8 Bb8 Bc8+ Ka8 Bd7 Bh4 Bf4 Bg5 Bc8 Nfd1 Bd7 Ne3 Bc8 Qf2 Bd7 Rhf1 h1N Rfd1 h2 Rd2 Nhg3 Qg1 Ke8 e7 h1Q Rdd1 Bc8 Rd3 Kd7 e8N Qh4 Nd6 Qhh2 Ne4 Ne2 e6+ Ke7 Qf2 Bc7 Ng3 Kd6 e7 Kc5 e8R Qe6 Nh1 Bd7 Nbd1 Bc3 Re7 Bd2 Nb2 Bc1 Nf1 B1f4 Rd2 Be8 Rd7 Bh5 Rf7 Bg4 Rdd1 Kb6 Ne3 Ka5 Nbc4+ Ka4 Nb2+ Ka3 Rd3+ Nb3 Rdd7 Nbd4 Ned1 Nb3 Qc5 Nbd4 Ne3 Nc3 Qb6 Nce2 Qa7+
n1Q3K1/r1qRN3/R1p1N1BQ/5PBr/1pq2r2/5kq1/bn1Nb2P/N1bB4 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 b5 a4 c6 f6 g3 d6 g2 f7 b3 d7 b4 Ke6 Kf4 a5 g5 a6 g4 a7 g3 Qh5 b2 Be2 Ba6 Na3 b1B Nf3 g1Q Bd1 g2 Nc2 Bh6 f8N Nf6 Kf7 Nd5 d4+ Ne3 d5 e5 d6 e4 Nd2 Be2 Ra6 Qc7 Na1 Qf1 f3 Nc4 Ng6+ Ke3 f4 g1R Ne7 Nb2 d8Q Rg4 Qc8 Nd7 f5 Nb6 d7 Bf4 d8N Ba2+ Ne6 Rh4 Qg5 R8h5 Qh6 Kf2 Rg1 e3 Rg7 Bg5 Kg8 Rf4 Nc4 Kf3 Bd2 Rb8 a8B Rb7 Bc1 Ra7 Bb7 Na8 Nd2+ Kg2 Qd8 Kf2 Bc8 Kg2 Bd7 Kf2 Ne4+ Kg2 Qc8 Kf3 Qh7 Bh6 Be8 Bg5 Bg6 Bh6 Bb3 Bg5 Bd2 Qc1 Ba4 Qc4 Qh6 Rg4 Qb7 Bf1 Qh8 e2 Qc8 e1Q Qh6 Qd3 Bd1+ Be2 Nd5 Qeg3 Rd7 Qc4 Ne7 Bf4 Be1 Bc1 Bd2 Rgh4 Bg5 Rf4 Nd2+
1K1R4/BB1R2n1/NrpQ2Pb/3b3P/Q2r1qRR/p1N4q/3nQkr1/n6b b - - 0 1 illegal: No proof kernel
1q2N1Q1/1Q1qN3/1PB5/1n2Bbq1/K3N3/1pPr3k/2rrnRnp/2Q1b1RQ b - - 0 1 illegal: No proof kernel
4k1QN/4q1B1/BP1b4/n1P1BpQ1/3q3Q/rRr2bp1/b2Rr3/Q1nqNK2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 b4 f5 c4 a5 e4 d5 h4 g5 e5 f3 e6 d3 c5 d4 e7 g4 h6 g3 h7 a4 h5 a3 h6 a2 Na3 Ra4 Rh2 Na6 Nc2 Kf7 Bb2 Be6 Qc1 Ra3 Rb1 a1Q Qg5 Ba2 Ne2 Qc7 Nf4 f2+ Kd2 Qd6 Ng6 Qf6 Kd1 d2 Ke2 d1R Bc3 Rc1 Rb3 Qb2 b6 Qd6 b7 d3+ Kf3 d2 Kg2 d1B b5 Nb4 b8B Nd3 Bg7 Qbd4 b6 Qe6 Bbe5 Bf3+ Kh3 Qf6 Be2 f1Q+ Rg2 Nb4 Ba6 Qfg1 Rd2 Nd3 Na1 Rc3 Nc2 Ke6 e8Q+ Ne7 Qb8 Kf7 Qc8 Nc1 Qe6+ Ke8 Qc4 Qf7 Qf1 Nd3 Qa1 Qd1 Ne1 Be2 Kg2 Bf3+ Kf1 Nc6 Rb4 Na5 Rb3 Kd7 Bf4 Rg8 h8Q Bd6 h7 Re8 Qg8 Re2 h8Q Nc1 Qhh4 Qe8 Nh8 Qe7 Qd5 Kd8 Bfe5 Ke8 Qg8+
8/1BqnB2K/1p6/1qk2QN1/rbP1Q1BR/Rb2P2N/3nr2p/2brBn1R b - - 0 1 illegal: No possible last move
1b5Q/3r1N2/Kp2N1BR/BpRNk3/1Q4P1/q2qrnN1/rn1b2P1/B2n3b b - - 0 1 illegal: No possible last move
2b1Q3/N2N4/Bp1nn2P/nrq1Qr2/RP1k2K1/2q1bRBB/5Bp1/5Qrb b - - 0 1 illegal: No possible last move, all moves rejected
n1rRq3/3QnkNn/qpP2B1P/q1N2R2/3p4/bb1rb3/Q3RR2/1Q1B1K2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 h4 d5 c4 e5 a4 g5 f4 e4 f6 e3 a5 b3 a6 b2 f5 d3 c5 d4 a7 g4 h6 g3 c6 e2 f7+ Ke7 f6+ Ke6 h7 g2 h5 b6 h6 Nd7 Nf3 g1Q Ra5 Qe8 Nbd2 b1N Ne4 Ba3 f8R Ne7 f7 Qg5 Nh4 Nc3 Rh2 Ncd5 Nf5 Nc7 Nc5+ Kf6 Ng7 d2+ Kf2 e1B+ Ke2 Rg8 h8Q Bf2 Qh7 Be3 Qdc2 Rb8 Qb1 Na8 Bg2 Qh5+ Bf3 Qf5 Kf1 d1Q+ Kg2 Qb3 Kf1 Qa4 Re2 Ba6 Bd2 Bc4 Be1 Qg5 Bh4 Rc8 Bh5 Bb3 Bg4 Nc7 a8Q Qc4 Qa7 Na8 Qhc2 Qd3 Qca2 Kg6 Rb5 Nf6 Qd7 Nh7 Ra5 Qd5 Bf6 Qh5 Na6 Qg5 Rf5 Qh5 Rf2 Qa5 Rf5 Qc4 Nc5 Qca6 Qb7 Qd7 Rd8 Qe6 f8R Qe5 Rfe8 Kf7 Rf2 Qe6 Rd5 Qd7 Rd8 Qe8 Qd7 Rf8 Rdf5 Rg8 Nh5 Rg6 Bf3 Rg3 Bg4 Bg5 Ng7 Rd3 Rb2 Bc1 Bd1 Be3 Rbe2
2qkbr2/2nRb2P/1R3QQ1/2q1q2B/RN5K/1R2pp1B/r3rP2/n1nBN3 b - - 0 1 illegal: No possible last move, all moves rejected
2q1n1QR/7P/b1rR1q1r/brQ1nN2/2b1B1N1/2QpB2k/2R2P1p/2KR2n1 b - - 0 1 illegal: No proof kernel
7q/1qbB3P/N1r3Q1/1bnQ1P1p/q2Q3p/k1n3rB/1N1bQBRK/r5R1 b - - 0 1 illegal: No proof kernel
6r1/Q1B1NBRP/B2n1P2/1Q2Kbq1/2pQNr2/2b1pr2/R1kbn2Q/1q1q4 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 b5 a4 g3 h4 b3 a5 g2 h5 c6 f6 g4 f5 b4 h6 e6 f7 b2 a6 b3 h7 g3 a7 Bh6 f8Q+ Ne7 f6 Rg8 Nh3 g1Q+ Nf2 g2 Nc3 b1R Qe8 b2 Ra2 e5+ Ke4 Kc5 d4+ Kb4 d6 c5 d5 Rg4+ Bf4 Nf5 d7 Nc6 d6 Ncd4 Qe2 Kb3 Nd5 Rg3 Q8h5 Rf3 Qb5+ Kc2 Qh2 Ne2 Ne7 Rc1 Kd5 e4 Ke5 Rd1 Bg3 Rd4 Bf4 Qg8 d8Q Qg5 d7 Rb4 Qda5 Nd6+ Nf5 Rb8 d8Q Be6 Qdb6 Rg8 a8B Ra4 Bd5 Rd4 Ra1 b1Q Qaa7 Bc8 Bf7 Qd1 Qh4 Rb4 Rh3 Qh1 Rg3 g1B Qh2 Qb1 Ng4 Be3 Ra4 Bd2 Nf2 e3 Qd8 Bf8 Ne4 Be7 Qdd7 Bd8 Rg1 Ba5 Rg2 Rd4 Rg3 Bac3 Ra5 Qh5 Rg7 Qg5 Ra2+ Kd1 Ng3 Ne8 Qb2 Nc1 Ba6 c4 Qbb5 Ne2 Ke6 Qe1 Bb8 Rdf4 Ne4 Qh1 Qd4 Nd6 Ke5 Kc1 Qa7 Qd1 Bc7 Bd7 Ra1 Kc2 Ra5 Qg6 Ne7 Bf5 Ra3 Qg5 Ra2+
nrn4R/kbR3P1/q5r1/8/1bpK1Bp1/1b3R1B/qPN3n1/QB1BrQ1N b - - 0 1 illegal: No proof kernel
2q1q2r/q1nB2PN/2RN2P1/r7/n1KQR1B1/R5rR/1B2n1pp/2k1bbQ1 b - - 0 1 illegal: No proof kernel
3R3Q/1RrqR1p1/4N1P1/1N3BK1/r1k2p2/1RqQn1b1/n1rP4/B1bN2nb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Qc2 Nh6 Qf5 Ng8 Qg4 hxg4 Kf2 Ke7 b4 Kd6 e4 f5 h4 c5 e5+ Kd7 h5 a5 d6 Ke6 g6 Kd5 h6 f3 Kg3 f2 Kf4 a4 h7 c4 b6 a3 d7 g3 b5 a2 b7 c3 e6 g2 e7 c2 e8R Qe7 d8N Na6 b8Q Kd4 b6 Nh6 b7 Nb4 Ne2+ Kc4 Bb2 c1B Ne6 g1N Bh3 Ng4 Nbc3 Ra4 Nd1 Qd7 Re7 f1R+ Kg5 Ne3 Rb1 a1Q Qd6 Na2 b8R Bb7 Nec3 f4 Rh2 Bh1 Nb5 Re1 Bd4 Qc3 Rd8 Rg8 h8Q Rf1 Rf7 Be7+ Bf6 Rf8 Rb3 Rf3 Re2 Rg8 Ra8 Rc8 Bf5 Rc7 Rb8 Rh3 Rff8 Rf3 Rb7 Rf1 Rd8 Re1 Kh5 Rf1 Bd4 Bh4 Re1 Bg3 Kg5 Qb4 Ba1 Qc3 Re2 Bb2 Nf2 Rc1 Nd1 Rc2 Nf8 Nf1 Re7 Bc1 Ne6 Ne3 Qd3+
2q1b2R/QN2q1p1/2br1QP1/1BR1rBp1/3P1q2/4bk1N/n1K2R2/3RBr1n b - - 0 1 legal: proof: f4 b5 g4 e5 a4 exf4 axb5 d5 c4 h6 cxd5 Be7 g5 Ba3 g6 Bd6 Qb3 Bb4 Qg3 Bf8 Qg5 hxg5 Kd1 Kd7 h4 Kd6 e4 Ke5 b4 a5 d6 f5 d3 c5 h5 c4 h6 f3 h7 f4 b6 c3 d7 c2+ Kd2 f2 b7 a4 b5 f3 b6 Kf4 e5 a3 e6 a2 e7 Ra6 e8B Nf6 Nc3 Nc6 b8R Bc5 b7 Ng4 Rh4 Nb4 Rh2 Rd6 Rg2 Qe7 d8Q Bd7 Na4 Bc6 Bd7 Re8 h8R Bd4 Rb1 a1R Bf5 Na2 Rc8 Ba7 Be2 f1B b8Q Nf2 Nc5 Nh1 Nb7 f2 Ba3 Bc5 Rd1 Rc1 Rgh2 Bh3 Qa7 f1Q Qdb6 Qf3 Bb4 Be3+ Ke1 Kg3 d4 Qf4 Bb5 Bg4 Nh3 Kf3 Rg2 Ra1 Qd8 c1Q Re2 Qc4 Rc7 Qce6 Rc2 Qc8 Rf2+ Kg3 Bd2 Bgf3 Bb4 Bfd5 Ke2 Bf7 Kd3 Rb1 Kc2 Ra1 Rdd2 Rg1 Rd1 Rf1 Re2 Kf3 Be1 Qed7 Qf6 Re5 Rg2 Be8 Rgd2 Qe7 Rh2 Bcd7 Rc5 Bc6 Rf2+
rnb1BK2/q1k2PB1/r2pbRrR/2qRQ1p1/5nB1/Q4N1n/3B1P2/6bN b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 e5 Kd3 a5 Ke4 g5 Kd5 a4 h4 e4 b4 g3 c4 g2 b6 d3 b5 a3 c5 e3 f6 d2 h5 e2 f7+ Ke7 b7 e1N c6 a2 h6 Ra4 b6 Nf3 c7 Qe8 h7 Nh4 Qb3 d1B Nd2 Nf3 Ne4 Ra8 Bd2 Nf6+ Kc5 Nh5 Qa3 Qd8 Bb5 Rg8 h8B Nf4 Rh6 Bb3 Ng3 Be6 Nh1 Rg6 Rd1 a1R Bg7 Ra2 Qd3 R2a6 Qa3 Nh3 Bc6 Nd4 Nf3 g1Q Bb5 Ne2 Ba4 Nc6 b8R Nef4 b7 Qg4 Bb4 Qg1 Rd5 Qa1 Bd2 Qe8 Bh8 Bg7 Bb5 Be5 Bg7 Qf8 Ba4 R8a7 Ra8 Qa2 b8Q Qa1 Qb5 Qa2 Rb8 Ra8 Rb6 Nb8 Rbd6 Ng2 Qbb2 Bh2 Qe5 Bg1 Rc6 Ngf4 Bb5 Bb7 c8B Kd8+ Rcd6 Kc7 Bc6 Qd8 Bb5 Bf5 Rf6+ d6+ Kd4 Bg4 Be8 Qd7 Ke4 Qc6 Bcd7 Bc8 Be6 Bh5 Kf5 Qc5 B6d7 Ng2 Ke6 Bg4+ Ke7 Be6 Kf8 Ngf4 Bb5 Qa1 Bd3 Qad4 Bf5 Qa7 Bg4 Qc3 Ng3 Qcc5 Nh1
1rr1N2K/3n1PQb/pq2n2Q/B2B1nR1/1Q1br3/1P5q/1p1QNRNk/3q4 b - - 0 1 illegal: No proof kernel
1R2R1NQ/q4prN/2p2q1R/1n2bB2/b1qQ1RnQ/rk3K2/1P1P2n1/5bB1 b - - 0 1 illegal: No proof kernel forced: bxDB
2n1kn1N/B2r1pKB/1PR2QP1/1p5r/1Q3b2/r1Q1B2q/3q4/1NnqR1Qb b - - 0 1 illegal: No proof kernel
Qk1r4/Rr3p1P/b7/p1N1n2N/2qR1nq1/QbB1K1B1/P1rBR2q/2b3R1 b - - 0 1 illegal: No possible last move
2r2r2/RNb1P2b/kp2qn2/n3Rb1B/1R3K1B/3pn1Q1/B1NP2R1/3qrQ2 b - - 0 1 illegal: No possible last move, all moves rejected
4NBb1/4p3/K1R1b2b/R2QnnnB/4rQ1P/2q1q2q/3r1pP1/N2kQQN1 b - - 0 1 illegal: No possible last move
qr2Q1qr/1rbbp2k/q1n5/4PN2/1N2Q1RB/2NQ3n/Pp1B2b1/1KR3N1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 g6 f5 Qd7 Bh3 Qd6 fxg6 Qd7 g5 Qd8 Bg4 hxg4 e4 c5 h4 f5 d4 b5 Kd2 b3 h5 g3 d6 b2 Kc2 f4 g7 Kf7 d5 c4 h6 Kg6 d7 g2 h7 c3 d6 f3 Qd3 b4 Rh3 f2 Qe3 f1B Rh4 Nc6 Rg4 Nf6 g8N Rb8 Nh6 Nh5 Nf5 Bh6 Bd2 Nf4 e5 Nh3 Qe4 b3+ Kd1 Qa5 d8N Qa8 d7 Rb7 Nd6+ Kg7 g6 Be3 Nf5+ Kf8 Na3 Bb6 Rc1 b1R Nb5 Rb2 Rf4 Bc7 Rg4 Nb4 Nc6 c2+ Ke1 Rb8 g7+ Kf7 d8Q Bd7 Nc3 Rb7 Nb8 Nc6 Na6 Rb8 Nb4 Rb1 Bg5 Kg6 Kd2 Rb7 Nge2 g1Q g8Q+ Kh5 Kd3 Bg2 Bd2 Qb6 Qgc4 Qba6 Ng1 Rb2 Ne3 Kh6 Qe8 Rg8 h8B Rf8 Re1 c1Q Nf5+ Kh7 Bf6 Rh8 Bh4 Rb1 Qb5 Qca3 Rc1 Q3a5 Qbc4 Qd5+ Ke2 Qg8 Kd1 Rb2 Qf1 Rc2 Qfd3 b2 Nb5 Rc5 Nc3 Rcb5 Kc2 R5b6 Kb1 Rb8 Nbd5 R6b7 Nb4
r1nB1q2/rB1np1QR/3NPbB1/N4p2/K1bQP1Q1/1R2b2q/4Qk2/4r2n b - - 0 1 legal: proof: d4 g5 f4 b5 h4 gxh4 e4 c5 a4 Qc7 axb5 Qe5 fxe5 cxd4 Kd2 f5 b4 Kf7 g4 Ke6 c4 d5 Kc2 a5 Kb3 Ra6 c5 h5 g5 d3 b6 d4 b5 d2 g6 h3 b7 d3 c6 h2 b6 h4 c7 h3 g7 Nc6 b8Q Na7 b7 Nf6 Na3 Nd7 Nb5 a4+ Kb4 a3 Ne2 a2 Rb1 a1B Ned4+ Kf7 g8B+ Kg6 Nb3 Kg5 e6 Kf4 Qg4+ Ke3 Bh7 Bd4 Bg6 Bh6 Kc4 Bg5 Nd6 Bh4 Qa8 Kf2 Kb4 Ke3 Rg1 h1Q Ba3 Qf3 Rh1 Qg3 Bb2 Ra2 Bc1 h2 b8Q Ba6 c8Q Kf2 Qc2 Ra5 Qf8 Bhf6 Qh6 Rc8 Qb7 Ra8 Qd5 Nc8 Bb2 Ra1 Bc3 Ra3 Qb2 Bb5 Qa2 R3a7 Qc2 Ba6 Qe5 Qh4 Qf8 Bc5+ Ka4 Qh8 Be2 d1Q Ba5 d2 Qg7 Be3 Qd4 Qf8 Bd8 Qf1 Na5 d1R Rb3 Re1 Qcd1 Qg2 Bc4 Qg3 Bd5 Bc4 Bb7 Qh4 Rg1 Qhh8 Rg3 h1N Rh3 Qh4 Q1d3 Qg3 Rh7 Qh3 Qde2+
3nn3/3Prb2/6q1/4b2N/PQ1pbpQk/1Q1QR2B/1K1BNRq1/rnr1R3 b - - 0 1 illegal: No proof kernel
BqQr4/b1np2kB/2Q5/3BBr2/3b1pN1/P1QPb3/KR2nN1R/1n2r2q b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 e5 fxe5 b5 Qb3 Ba6 Qa4 axb4 Qd1 b3 Ba3 b4 Bc1 Bb5 cxb5 Ra7 Ba3 Ra4 Bc1 Ra8 h4 c5 e4 f5 b6 Kf7 e6+ Kf6 h5 g5 d3 c4 Kd2 b2 Kc2 c3 Kb3 f4 a3 g3 e5+ Kg7 b7 c2 h6+ Kh7 e7 g2 e8B g4 e6 g3 e7 Ra7 Nc3 b1Q+ Bb2 c1B Ne4 Nf6 Ra2 Ra5 Bf7 Rf5 e8B Bc5 Nf3 g1B Nf2 g2 Qc2 Ba7 Nh2 Na6 b8Q Nh5 Bd5 Nc7 Nhg4 Bce3 Rh2 Ng3 Qc6 Ne2 Qc8 Qh4 Bh5 Rd8 Bhf7 Bad4 Bg6+ Kh8 h7 Kg7 Kc4 b3 Bc3 b2 Kb3 Ng3 Be2 Qh5 Bef3 Ne2 Bfe4 Qc1 Bf3 b1N Rb2 Qc2+ Ka2 Qb3+ Ka1 Qb8 Ka2 Bf6 Be5 Ba7 Nh3 Bge3 Nhf2 g1R Bfe4 Re1 Bf3 Rg5 Bge4 Rf5 h8Q+ Kg6 Qf8 Qh3 Qfc5 Kg7 Qc3 Qf1 Bd6 Bfd4 Be5+ Rf6 Bh7 Qh1 Qe6 Kf8 Ba8 Rf5 Qec6 Kf7 Bd5+ Kf8 Bd6+ Kg7 Be5+
1n2R2B/Q2p2K1/1r2Np2/1P3NQr/1Q1bb1qN/1P2nn1Q/B2b2q1/2R2q1k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 a5 c4 d3 h6 g4 c5 a4 h5 a3 h7 a2 c6 f3 h6 d2 c7 f2 Nc3 g3 Na4 g2 Nc5+ Kd6 Kf5 Kd5 e4+ Kd4 e5 Ke3 e6 Ba6 c8Q Bb7 e7 Na6 e8N Qh4 Qb3+ Kd4 Qd8 d1Q Qb4+ Kd5 Ng7 Qh2 Nce6 Rb8 Qg5 Ne7+ Kf6+ Nf5 Nf3 g1N Nh4 Qg2 Bc4+ Ke4 Rh3 Ne3 Ngf5 Bc5 Kg7 f1Q Rb1 a1B Ba2+ Nc4 Rc3 Be3 b3 Qdg4 Bb2 Nf3 Rcc1 Bd2 Be5 Bd4 Rb2 Be1 Re2+ Ne3 Bf6 Bd2 Ree1 Rhc8 h8Q Rc5 h7 Bd5 Qg8 Rb6 Qa8 Nb8 h8Q Bb7 Qa7 Re5 Be7 f6 Qg8 Rc5 Bf8 Qge2 Kh6 Nc2 Qf4+ Kd3 Nd6 Ng1 Nd8 Qeg2 Bg7 Nf3 Re8 Be4 Bh8 Ke2 Ne6 Ne3 Qg3 Rf5 Qg6 Rg5 Kg7 Rh5 Qh2 Kf2 Qg3+ Kg1 Ndf5 Kh1 Qg5 Bc6 Qbd6 Ba8 Qb4 Be4 Qh3+
1B1q1b2/1P1N1b2/K1R4n/NBqr4/1b2pBn1/R1BQnP2/2p1r3/1Qkq3N b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 e3 Kd3 Kf7 Kc4 Kf6 b4 Ke5 g4 Ke4 d4 h5 b6 e5 g5 a5 Kb5 c5 g6 a4 g7 a3 b7 h3 Ne2 h4 Nd2+ Kd3 Rg1 a2 Rg5 c4 f3 h2 Ng3+ e2 Bb2 h1Q Rg6 Qf6 d6 c3 d5 h3 d7 h2 d8Q e4 d6 Be6 d7 Nc6 b8B Ne5 Qa4 Ng4 Qb3 Bf7 Nc4 Qg1 Rh6 Qfd4 Rc6 h1Q Qb6 Ra4 d8B Rh5+ Bg5 Qd8 Na5 Qc5+ Ka6 N8h6 Bgf4 Rd5 g8N Qhg1 Qc4+ Kc2 b5 e1B Nf6 Rb4 Nh1 Qgd4 Bbc1 Rb2 Nd7 Kd1 Bd3 Re2 Qb7 Bd2 b6 Qg1 Qb5 Be1 Bc4 Kc2 Bcd2 Qf1 Rb1 a1N Rb3 Kd1 Ra3 Nc2 Bd3 Nce3 Qb3+ c2 Bc4 Bh4 Qd3 Bf6 Be1+ Kc1 Bb4 Qd1 Bc3 Qb4 Qc7 Qd6 b7 B6e7 Qb6 Qb4 Qb5 Qd6 Qb3 Qb4 Bb5 Qd4 Nc4 Bb4 Na5 Qc5 Qb1+
B2b4/1p2Q1BP/7K/1Bnqn1Q1/rrq2q1k/1P1rRb2/1BNNR2p/1n5R b - - 0 1 illegal: No possible last move, all moves rejected
3r4/NpkBPnbq/2br4/K3P1B1/1r1NqQnQ/4N1R1/1N1Bqp2/R2b4 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 g4 Kd7 e4 c5 a4 h5 d4 f5 Kd2 b3 Kc3 c4 a5 f4 e6+ Kc7 d6+ Kc6 Kb4 b2 e5 c3 g5 h3 a6 f3 g6 c2 a7 h2 d5+ Kb6 g7 h4 Bh3 f2 Ne2 Qf6 Nd4 Rh7 Qf3 Nd7 Nd2 Qg6 Nf1 Ndf6 Bd2 c1Q Rg1 h1Q Rg3 Qd1 Qf4 Qge4 Ne3 Nh6 g8N Nf7 Ne7 Qe2 d7 Ng4 d6 Rh6 Nc6 b1R+ Ka4 Bg7 d8Q+ Kc5 d7 Rb4+ Ka5 Qh2 Bf1 h3 Qh4 Qhh1 d8B h2 Bg2 Qhb1 Bf6 h1B e7 Bf5 Bh3 Rd8 Bg5 Rhd6 a8N Bd7 Qh7 Bf3 Na7 Bc6 Qh4 Qbc2 Nb6 Qh7 Nbc4 Qce4 Nd1 Kd5 Ncb2 Kc5 Nf5 Kd5 Nde3+ Ke6 Nf1 Kd7 N1e3 Kc7 Nd4 Qe1 Bf1 Bd1 Bb5 Qe2 Ba4 Bd5 Be8 Bc6 Bd7
2Q3q1/Pk1nqr1B/1Np2rb1/1Qq4n/2R1P2B/1K6/p1B1rbQb/N2R3B b - - 0 1 illegal: No proof kernel
1bQ1n1rk/pq4N1/1Q1qb3/Q3R2P/5pb1/r3QP2/BN3R1K/qBNn3n b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 a4 h5 axb5 hxg4 Be3 Kd7 cxd5 Nh6 d6 Ke8 d5 Ng8 Bd4 exd4 b4 c5 h4 f5 e4 Kf7 e5 g5 b6 Kg7 e6 g3 h5 g4 b7 f4 e7 d3 e8B c4 b5 c3 d7 c2 d6 c1N b6 g2 Na3 g3 Nc4 Nf6 Bg6 Na6 b8Q Rh6 b7 Ne4 Ra2 Kh8 Qf3 Nc7 Qe3 Nc3 Nb2 Ne8 Ne2 g1Q f3 g2 Qc7 Nd1 b8Q Qe7 d8N Bg4 d7 Qd6 Ne6 Bg7 d8Q Be5 Nc3 Ne2 Qcb6 Ng3 Ne2 Qh2 Ra5 g1Q Nc1 Qc2 Qdc8 Qcc6 Qb8c7 Qb7 Rh2 Nh1 Rf2 d2+ Ke2 Rb8 Bb1 Rf6 Bh3 Rf8 Ng7 Rg8 Q8d7 Rd8 Qdc8 Rd7 Q7d8 Rc7 Rd5 Rc3 Qa5 Ra3 Qdb6 Qd8 Rb5 Bb8 Re5 Qd6 Ba2 Qg3 Kf1 Qh4 Kg2 Qhf6 Rb5 Qfe5 Kh2 Qef6 Nbd3 Qa1 Bb1 Nc3 Rc5 d1B Nb2 Bb3 Re5 Bbe6 Bf1 Nd1 Bc4 Qf7 Bd5 Qb7 Bda2
1NBn3B/p1B2QRq/rrnP3b/2r1k3/2P5/2nq3b/Q1p1bK2/1BRR2N1 b - - 0 1 illegal: No proof kernel
BNRr2R1/p2rNr2/P3B3/1bkqQ3/Q3Q1p1/RP2R3/Kb3n1n/2q3nb b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 f4 g5 fxg5 h6 g6 Qf6 g7 Qd8 g4 Bd6 g5 Ba3 g6 Bf8 Bg5 hxg5 Kd2 Ke7 Kc1 f5 h4 d5 e4 c5 a4 g4 e6 Kd6 b3 f4 Kb2 c3+ Ka2 c2 e7 c1Q e8Q d4 h5 c4 a5 c3 a6 f3 h6 f2 h7 d3 e5+ Kc5 e6 c2 e7 d2 Bg2 f1B Nc3 Nf6 g8B Bb7 g7 Ne4 Nge2 Nf2 Qe1 d1R Be6 Rd7 g8R Bg7 Nd4 Nc6 Nd5 Ne5 Nc6 Bb5 Nb8 Nf3 Rh3 Nh2 Qe4 Bb2 Re3 B7c6 Qh5 Bb7 e8Q B7c6 Rg5 Rf8 h8R Rff7 Rgg8 Qg5 Ne7 Qd5 Qhe5 Bb7 Nbc6 Rad8 Bf3 Qf1 Nb8 c1N+ Kb1 Qh1 Ra3 Ne2+ Ka2 Qc1 Qa4 Rf4 Qg6 Rf7 Qge4 B7c6 Rf8 Ng1 Rhg8 Bf1 Bg2 Bcb5 Bf3 Bg2 Re8 Bh1 Bg2 Rd6 Ref8 R8d7 Rc8+ Rc7 Qg7 Qdc4 Qeg6 Rd8 Ba8 Qe4 Qe5+ Qd5 Nbc6 Rb7 Qge4 Rbd7 Nb8+
qB1nKn1R/pR2BP1n/bN4b1/3pQ2R/2NQBB1P/2b2r2/8/qq1r2k1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 d5 c4 g5 b4 d3 h3 g3 f6 g4 f7 d2 f5 Ke3 f6 Kf2 b6 g2 b7 g3 b5 Nd7+ Kc6 e5 b8B e4 c5 e3 b6 e2 b7 e1N Nf3 g1Q Bd3 g2 Nc3 Bg7 f8B Nc2 Be7 Nf8 Ne5 Qf1 Ra6 g1Q Rb6 Qg6 Rh2+ Kg1 Na4 Qe1 Be4 Nb4+ Kb5 Qh7 Nc4 Nc6 f7 Nf6 h4 Rg8 Re2 Qe8 Re3 Nd8+ c6 Qf5 Kc5 N6h7 Kd6 Bc3 c7 Rg3 Rb4 Qff1 Nab6 Rf3 Rb1 Bf5 c8R Bg6 Qa4 d1B Re2 Kh1 Bf4 Kg1 Re3 Be2 Qd1 Qh3 Qd4 Qf5 Rb4 Qa1 Kc7 Nfe6+ Kd6 Qg8 Kd7 Nef8+ Ke8 Qh8 Bbe5 Bd3 b8Q Qg8 Qd6 Rb8 Qe6 Rb7 Bb8 Rc7 Qee5 Rc6 Na5 Ba6 Rb3 Rc4 Rb5 Rb4 Nac4 Rb1 Re2+ Kh1 Rg2 Rd1 Rg5 Qh8 Rh5 Qg8 Qd2 Kg1 Qdd4+ Re3 Bf3 Qfb1 Be4 Qh8 Nd7 Qg8 Rb7 Qh8 Ndb6 Qg8 Qd2 Rf3 Qdd4+ Kf1 Rg5 Nfe6+ Kd7 Nc6 Rh5 Qh8 Bbd6 Qg8 Rcc7 Qa8 Rc8 Kg2 Rg8 Ncd8 Ke8 Nef8 Rh8 Kf1 Bb8 Kg2 Ne3+ Kg1 Nec4+
3r1n2/p1p1N2N/1B1nBR2/KR3N2/3RRq1k/Pb2Pqqr/2Q3Q1/bb5n b - - 0 1 legal: proof: f4 e5 g4 b5 d3 h5 c4 bxc4 gxh5 cxd3 fxe5 Bb7 Bh6 Ba6 Bc1 Bc8 Kd2 Ke7 Kc3 f5 Kb4 g5 h4 d5 a3 d2 e6 Kf6+ e7 g4 h6 g3 h5 Kg5 h7 g2 h6 d4 Qc2 d3 Rh4 f4 Nh3+ Kg6 Nc3 d1Q Nd5 g1N Ne3 f3 Ka5 f2 e8R Qd6 b4 Qd2 Ng5 Qg3 Nf5 Ne7 Bh3 f1Q Rd4 Qdf4 b5 Kh5 b6 d2 b7 d1B Be3 Nd7 b8R Bg7 Rb5 Q1f3 Rf8 Bb7 Rf6 Nc8 Ra2 Rd8 h8Q Nd6 h7 Nf8 Qg8 Be4 h8N Rab8 Ng6 Rb6 Qcc4 Bb3 Nge7 Bb1 Qc2 Rc6 Nh7 Rc3 Re4 Rd3 Bb6 Re3 Nd4+ Kh4 Be6 Nh3 Rb2 Nf2 Ndf5+ Kh3 Rbb4 Nh1 Rbd4 Bh8 Nh6+ Kh4 Qg7 Bd5 Rb5 Bb3 Qg6 Qh2 Qg2 Qhg3 Rff5 Be5 Rf6 Rd3 Rdb4 Ba1 Rbd4 Rd2 e3 Re2 Qf1 Rh2 Qfg2 Rh3 Nhf5+
R7/N4r1B/Bbn3Q1/qb2br1k/Q3B2B/N1P1Q1r1/1Pp1np1b/1Rb2K2 b - - 0 1 illegal: No proof kernel
6Bb/3r4/bn1B1b1N/PQp2p1P/qN4R1/2b1Q1K1/1kr1Q3/Rr1n1RQb b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 a4 b5 e4 g5 d4 c5 h4 f5 h5 b3 d6 Kc6 d7 g3+ Kf3 g2 e6 b4 e5 Kd5 e7 b2 e8Q b3 e6 g4+ Kf4 g3 e7 Nh6 Kf3 Rh7 Ra2 Qa5 d8Q+ Nd7 Bf4 Ba6 Nh3 g1B Qb8 g2 Ra1 Nb6 Ng5 Ng4 Nf7 Bg7 Na3 b1R Nh6 b2 Bd6 Bh8 Nc2 Nf2 Kg3 Qb4 Qc1 Nd1 Bc4+ Ke4 d5 Bgd4 Rf1 g1B Qb5 Bc3 Qg8 Bgd4 e8Q+ Re7 Ba2 Bdf6 a5 Rb8 Bc4 Qa4 Nb4 Kd4 Qg7 Rd7 Qe2 Re8 Qgg4+ Re4 Qgf3 Rh4 Qh1 Rf4 Qg1+ Rf2 Qg5 Rc1 Ba2 b1B Bb3 Be4 Ba2 Bd2 Qf4 Kc3 Qfe3+ Kb2 Qe1 Ra7 Bb8 Rc4 d6 Rb7 d7 Rc1 d8R Rb1 Bg8 Bh1 Rd4 Bc3 Rg4 Rc2 Bd6 Rd7 Q1e2
B5Qr/2B4N/1Q1rbnPr/3pqRr1/3bR1B1/2B3br/3p1kP1/NK1n3Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 c4 Ke5 Kc2 Ke4 g6 d5 c5 a5 c6 f5 b6 h5 b5 h4 c7 a4 b7 f3 e3 h3 b6 f2 Qh5 d3+ Kb2 a3+ Ka2 d2 Be2 f1R Nf3 f4 Bb2 h2 Bc3 Nc6 b8Q Be6 c8B Nd4 Bb7 Ra6 Ba8 Nc2 b7 Bd6 Qh4 Rd1 Re1 h1R Qa7 Qe7 b8B Nf6 Bc7 Rh3 Qb6 Rc1 Bd1 Kd3 e4 Ne3 Ng5 f3 e5 f2 Bf3 f1R Nh7 Nd1 Re4 Rfh1 Qh6 Rg3 Qh4 Rg5 Qe1 Rh3 Qh1 Bd7 e6 Bg3 Bb4 Qe8 e7 Be6 Bc3 Qb8 e8Q Rh6 Rd4+ Ke3 Qg8 Kf2 Re4+ Ne3 Kb3 a2 Na3 Re1 Rb1 a1B Ka2 Qe8 Rbb4 Rg1 Rbd4 Nd1 Kb1 Re1 Rd3+ Re3 Nc2 Qe7 Rdd4 Qd6 Rf4 Qe5 Rde4 Bb2 Rf5 Ba1 Bb4 Bd4 Na1 Rd3 Bc3 Re3 Qb5 Rd6 Qb6 Bf4 Be2 Reh3 Bf3 Bg3 Bg4+
2N4K/QrrnQ1B1/nb4p1/kB1b1R1N/bN1b1qp1/P3r3/R1bP4/1B1B4 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Kg3 b5 Kf4 c5 Kf5 Kc7+ e6 Kb6 h4 f6 Kg6 b3 e4 f5 h5 b4 e7 c4 e8B c3 a3 f4 h6 c2 h7 f3 e5 b2 e6 b3 d6 f2 d7 Qe7 d8Q+ Qc7 e7 Ra7 Rh5 Bd7 Ne2 Na6 Ng3 Nf6 Be2 f1B Nc3 b1B Na2 b2 Rf5 Ba4 Nb4 Nd7 Nh5 Rg8 h8N Bg2 Kh7 Bd5 Qg1+ Ka5 Bd1 g6 Bf7 Bh6 e8B Be3 Ra2 Bb6 Qe7 Qf4 Be6 Rf8 Nf7 Rc7 Nd6 Rf6 B6f7 Re6 Nc8 Re2 Kh8 Re3 Ra1 Ba2 Bg8 b1R Bb2 c1B Bg7 B2b3 Ra2 Bb2 Be6 Bc2 B6f7 Ndc5 Bb5 Bd4 Be6 Rb2 Bed7 Rbb3 Bdc6 Nd7 Bd3 Rc3 Bcb5 Rb7 Qf2 Bcb3 Bb1 Bc2 Qfh4 Rc4 Qc5 Rcc3 Qhe7 Rc4 Qc7 Rcc3 Qb8 Rcc7 Qa7
rRk2K1N/3qQ2N/1b3pbB/1B1nP3/1Q2P2R/b2rn1b1/2bN1B1p/4r2B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Kd7 Ke3 a5 Ke4 c5 Kd5 h5 d4 f6 b4 a4 g4 a3 g5 h3 g6 a2 g7 h4 b6 c3 b5 h2 b7 h3 b6 c2 Bh6 c1B Nd2 c4 Qe1 c3 Rb1 a1B Ngf3 c2 Ng5 Ra4 Nh7 Nc6 b8B Bfa3 b7 Ra8 Ba7 Na5 b8Q Nc4 Qb4 Ne7+ Kc5 Rf8 g8B Ne3 Bd5 Bb7 Bdg2 Kc8 d5 Bc3 d6 Be4 Qd1 Bg6 d7+ Kc7 Bc6 N7d5 Bg2 Qc8 d8N Qd7 Bb5 Kc8 Nf7 Rd8 Nh8 B1b2 Qe1 c1R Qg3 Bc2 Qg7 Re1 Qe7 Bg6 Rf1 h1B Rf4 h2 Rh4 Ba1 Bf3 Bg2 Bb6 Bh3 Bh1 Bhf5 Rb3 Bc2 Rb2 Nc4 e4 Nce3 Rb1 Qg4 Kc6 Bd4 Ba7 Bb6 Rb3 Bad4 Rb2 Rf8 Kd6 Qd1 Ke6 Rd8 Rb1 Nf1 Rb3 Bf2 Rb1 Bg3 Rb3 Bf5+ Kf7 Bg6+ Kg7 Rd6 Kf8 Qg4 Rb1 Qd7 Rb2 Ba5 Bf2 Bb6 Rb1 Nfe3 Ra1 Bc1 Ra7 Ba3 Rb7 Rc6 Nf7 Rc3 Nh8 Rd3 Rb8+
6b1/5Q2/K1RPBBn1/1N3Prp/n3rp1Q/rR1qk1N1/2r4b/NB1N1nr1 b - - 0 1 illegal: No proof kernel
4R1Qb/b1K2nNn/2QpBQnk/8/r1pRq2P/Q2P4/N2bbBr1/1b1B4 b - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 b5 gxh5 Nc6 Kf2 Nb4 a5 Nc2 a6 Bxa6 cxb5 Bc8 Kf3 c5 Ke4 a5 Kd5 f5 e4 Kf7 h4 g5 b4 Kg7 e5 f3 e6 g4 e7 f4 Kd6 a4 b6 a3 b5 g3 b7 a2 b8Q g2 b6 c4 b7 f2 Nc3 f3 Bb2 Qe8 Ba3 Ne1 Kc7 d6 Bc5 Nd3 Qc1 Ne5 Nge2 g1B Ng3 Nf6 Be2 f1N Bd1 f2 Qa3 Bf5 Qc8 Ne3 b8Q f1B h6+ Kg6 h7 Be2 Qbb7 Ng2 Bf2 Bb1 Nf5 Rg8 h8Q Bh6 Qc6 Nf7 Ng7 Ra4 Rh3 Bf4 Rd3 Nh7 Rd4 Kh6 d3 Bd2 Qf5 Qa8 e8B Nf4 Qf6+ Ng6 Bd7 Qe8 Bf5 Qe4 Bd7 Bc2 Rc1 a1B Na2 Bb1 Be6 Bac3 Bg3 Bge3 Bf2 Bb2 Rd5 Ba7 Rd4 Rb8 Rc2 Rb5 Qg8 Rg5 Rd5 Be5 Rd4 Rg2 Rb2 Qf5 Rb8 Qe4 Qf3 Bf6 Re8 Be5 Nh5 Bg7 Qf6 Bh8 Ng7
b1rNN1KB/3nb3/b1Qp1pQk/1r2qn2/Pn2Q1R1/n2R3B/5nP1/4QN2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 b5 Kf3 h5 Kf4 d6 c4 h4 a4 h3 e4 h2 g6 b3 e6 b2 Kf5 d3 e5 d2 c5 b4 c6 b3 g7 Ke7 c7 Na6 Bc4 Rh6 Ra3 Ra7 Ne2 Qe8 Nf4 Nb4 Qe1 d1N Nd2 b1N Nf1 b2 Rd3 Ba6 c8Q Rg6 Qc6 Nf6 g8Q Na3 Qh7 b1B Bb2 Rg8 Qce4 Kd8 e7+ Kd7 Ne6 Rb7 Nd8 Nf2 Bb3 Rb5 Bd1 Ba2 Bg4 Bd5 Bh3 Ba8 Qh5 Nd1 Qg6 Ne3+ Kg5+ Nf5 e6+ Kc7 Ba1 Nd7 Bh8 f6+ Kh5 Kc8 Qf7 Kc7 Bg7 Rh8+ Kg6 Rg8 Kh7 Kc8 Rg1 h1N Bh8 Nf2 Rh1 Rg4 Q4e3 Rc4 Kg8 Rc3 Qe4 Rcc5 Qg7 Qh5 e8N Be7 Qf7 Qe2 Bg4 Qb2 Rh4 Qe5 Bh3 Rc4 Nc6 Rc3 Rg4 Rc1 Na5 Kd8 Qc6 Rc2 Qce4 Rc7 Nc6+ Kc8 Ng7 Bf8 Nd8 Rc1 Nb7 Kc7 Q4e2 Kc6 Nd8+ Kc5 Rdg3 Kd5 Qe3 Rc8 Qb6 Qe3 e7+ Ke5 Qc6 Qe4 Rd3 Qe2 Rg6 Kf4 e8Q Qe4 Qee6 Be7 Ne8 Qd4 Qed5 Qe5 Rgg3 Ng4 Qde4+ Kg5 Qf3 Kh6 Qfe4 Nf2 Rg7 B8b7 Rg4 Ba8 Qg6#
rBR2n1r/1Q2K2k/QP3PN1/2n3Rb/2qp1N2/1Brb1Nbp/3Q4/2b1bN2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kg7 Ke4 e5 Kd5 h5 g4 a5 c4 h3 b4 d6 f4 e4 b6 e3 g5 h2 b5 h4 g6 d3 b7 e2 b6 e1B f6+ Kh6 g7 d2 c5 a4 f5 h3 c6 a3 c7 a2 f7 Qe8 f6 Be7 f8N Qg6 Nf3 Qf7+ Ne6 Na6 b8Q Nc5 Bc4 Kh7 Rg1 h1R Rg5 Ba6 Bb3 Bd3 c8Q Rf1 Qc2 d1B Nbd2 Be2 Rb1 a1B Qa6 Be5 Qbb7 B5g3 Qd1 Rh1 Nf1 Rg1 Kc6 d5 Nf4 d4 Qd2 Qc4 Ba3 Bf8 Rc1 Ne7+ Kd6 Bd1 g8N Bh6 Nh4 Bh5 Nf3 Nd7 Bb4 Ng6 Ne7 Ngf8 Ng6 Rh1 Ke7 Nc5 Qe2 Rh2 Qe3 Rc2 Qd2 Ne4 Bd6 Rc3 Rc5 Bg5 Rc8 Nc5 Bb8 Bef2 Re1 Bh6 Re5 Be1 Nd5 Be3 Rg5 Bef4 Qg2 Be3 Ndf4 Bc1 Qd2
6kr/3B1nrN/1pn1QP1R/1rQ1B1P1/1N1n2R1/1q3QBB/nn1p4/1K2b2b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 a4 h5 g4 d5 c4 e5 Kc2 b6 f4 e4 g6+ Kg7 a5 h4 c5 e3 a6 e2 a7 h3 c6 h2 c7 Bb7 c8Q Nc6 Bb2 Nh6 f6+ Kg8 g7 Nf7 Na3 e1N+ Kb1 b3 f5 d3 Nh3 d4 Ng5 d2 Nh7 d3 g5 Bb4 Be5 b2 Nc2 Nf3 Ra4 Nfd4 Qf3 d1N Bh3 Be1 Nb4 d2 Qe6 Rb8 a8Q Qd5 Qa5 Qb3 Qc5 Rd8 Rg1 h1N Rg4 Rd7 Rh4 Ba8 Rh6 Ng3 Nd3 Qa3 Qee7 Na7 Qh1 Ne4 Qe6 Rc7 Rc4 Qb4 Ka2 b1R Qg2 Rb3 Qg4 Nb2 Kb1 Bb7 Qg2 Nf3 Rd4 Qc4 Qe2 Rb5 Nb4 Nf2 Bg3 Nfd1 Qf1 Bc6 Rg4 Nd4 Qf2 Bh1 Qf3 Qd5 Qee3 Nd6 Qb3 Kf7 g8B+ Ke8 f7+ Ke7 Bf1 Nac6 f8B+ Ke8 f6 Rg7 Be6 Nf7 Bh3 Nc3+ Ka1 Na2 Bfd6 Qc4 Kb1 Qd5 Qbe3 Qb3 Bb8 Nfd8 Bf5+ Kf7 Bd7 Kg8 Qe6+ Nf7 Bbe5
Qn2n1N1/B1R2Rbn/1p2P3/4b2p/1K3b2/2B4Q/1PRRb1r1/Nr1Bkb1q b - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 e5 a4 exf4 c4 dxc4 a5 b6 a6 Qd6 Rh6 Qd5 Rh1 Qb7 axb7 Ba3 Ra2 Bb4 Ra1 Bf8 g4 Ke7 e4 Kd6 d4 c5 Kd2 f5 Kc3 h5 e5+ Kd5 g6 Ke4 g5 a5 d5 a4 d6 f3 g7 f2 g6 f4 e6 a3 d7 f3 d8Q a2 Qe7 Nf6 g8R Ne8 Ne2 Bg7+ Nd4 Be5 Be2 f1N g7 f2 Qd2 Ng3 Rd1 f1B Rf8 Rg8 Qdg5 Bd7 Qd8 Bb5 Qgf6 Ra7 Nd2+ Ke3 Bf3 Kf2 Qh4 Ba6 Rb1 a1Q Qh3 Bb5 Rf7 Ne4+ Kc2 c3 Kb3 c4+ Kb4 c2 Nc6 c3 Nb3 Ng5 Bd2 c1B Ne7 c2 Bc3 Ra8 Rd2+ Ke1 Bd1 Bbe2 Qd5 Nh7 Qa5 Qa2 Na1 Qd5 Qa3 Qh1 Qa7 Rh8 g8R Bg7 Rgf8 Rg8 Rf2 Be5 R8f7 Rg2 Ng8 Bg7 Qa4 Ra5 Rc7 Rag5 Rf8 Rg1 Rff7 R5g2 Rdd7+ Bd2 Qa8 c1B Rd4 Nd7 b8B Be5 Ba7 Nb8 Kb3 Bg7 Bb4 Bc3 Rd2 Bcd4 Bc3 Bde5 Kb4 Nf8 Bd4 Nh7 Rdc2 Bcf4 Rd2 Rg3 Rbc1 R1g2 R1c4 Rc3 R4c5 Rc1 Rcc2 Rb1 Bc3
3n1R1B/4nb1P/k5r1/1B1PBN1q/2rr4/rN1Qr2p/pN1bQn2/K2R2N1 b - - 0 1 illegal: No proof kernel
5K2/2NN3P/n2k1P2/r2bQb1n/3B3p/R2r1Qbr/BB1Bqp2/4RRrr b - - 0 1 illegal: No proof kernel
B1QB1R2/5rp1/1K1bbrPQ/Bn4kr/Nr2R1b1/3P1B2/4Nrnp/2N3q1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 Ke7 e4 Kf6 b4 a5 d6 c5 d7 h5 d8B+ Ne7 e5+ Kg5 e6 f5 b6 f3 Ke3 h4 g4 a4 d3 f2 b7 c4 Kd4+ f4 Kc5 a3 b5 c3 b6 c2 Be3 c1R+ Nc3 h3 Ne2 a2 Qd2 Ra7 Bg2 f1B Bf3 Nc6 b8N Rc2 b7 Rh5 Kb6 Qg1 Nc1 h2 N3e2 Bh3 Nd7 Nd4 b8Q Nb5 Nc5 Bd7 Rb1 a1R Rb4 R1a4 Re4 Rb4 Qc8 Rcb2 Na4 Ra2 Bc7 Nf5 e7 Be6 e8B Nh4 Bc6 Ng2 Ba8 Bd6 Bd8+ Re7 Bf2 Rc2 Qe3 Rd2 Be1 Rdb2 Bc7 Rf7 Bd8+ Rf6 Nec3 Rf2 N3e2 Kh4 g5 Bhg4 g6 Kg5 Nd4 Rbb2 Ba5 Rb3 Be2 Rb4 Qh3 f3 Bd1 Rc2 Be2 f2 Bf3 Rd2 Nde2 f1R+ Ka6 Rf2 Kb6 Qd1 Rg1 Rc2 Rf1 Rc7 Qg3 Rf7 Qf4+ Kh4 Qh6 Qe1 Qh7 Kg5 Qh6+ Kf5 Nb3 Rc7 Na1 Rf8 Ng1 Re2 Nb3 Re7 Nc1 Kf6 Qh7 Kg5 Qh8 Ra2 Bd1 Rf5 Rff4 Rf2 Bf3 Rf8 Nge2 Qg1 Rf6 Bd7 Rfe6 Rf6 Qh7 Ref7 Re8 Bdf5 Rf8 Be6 Qh6+
5B2/5pqr/rp2k1nQ/Q1Q2b1n/R1nP2BN/4b2K/Q1rRrPr1/3N1N2 b - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 e4 h5 g4 d5 gxh5 dxe4 b6 cxb6 d4 Kd7 c4 a5 h4 g5 c5 e5 c6+ Ke6 h6 a4 h7 a3 c7 e3 h5 g4 h6 e4 Ba6 g3 Kf1 e2+ Kg2 e1N+ Kh3 a2 Bb2 g2 Be2 e3 Qd2 Nf3 Qa5 Ne7 Nc3 Ng6 Nd1 Qf6 Ba3 Nd7 b8Q Nd2 Nf3 g1R Qba7 Qg7 Nh2 Nf6 Nf1 Rg2 Bb4 Bd7 c8Q Nc4 Qcc5 Rc8 Q7a6 Nh5 Bg4+ Kf6 Qa7 e2 Qa8 e1R Qad5 Rg8 h8Q Re2 h7 Bf5 Qda8 Be7 Q8a6 Rgd8 Qf8 Re8 h8N Ke6 Rg1 Bg5 Qa8 Ne7 Ng6 Be3 Nh4 Ng6 Qh8 Rf8 Qh6 Rc6 Rb1 a1R Rb2 Rc7 Rd2 Rh8 Qa2 Rh7 Q8a3 Rb1 Qca5 Rb2 Bf8 Ra7 Q3c5 Ra6 Ng3 Bg5 Re1 Rc2 Nf1 Re5 Re3 Re4 Rb3 Re2 Ra3 Be3 Ra4
nR5Q/N1rrpQK1/6n1/2Q3Bb/PR2qp1N/1kN1P2r/1b4B1/1r1b1r1N b - - 0 1 illegal: No possible last move, all moves rejected
N1RN2n1/Qb2p1Bb/P4n1R/KBn3Q1/3p1b2/Qq2bNQ1/1k4rP/3b3r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 a4 Kf6 f4 d5 c4 b5 c5 g5 h6 b3 a5 b2 h7 b4 c6 b3 c7 g4 Na3 b1B Bb2 g3 Nb5 g2 Nf3 g1B Qc1 Be6 c8Q Ra7 Q8c3 Qe8 Nc7 Bc8 Na8 Na6 Bb5 Nc5 a6 Rc7 Ra4 Bh6 Qe1 Qf7 Qg3 Bf2 Rc1 Bb7 Ba1 b2 Qa3 d3 Kc3 d2 Kb4 d1B Ka5 Be3 Rac4 Ne6 Rc6 Bd3 R1c3 b1N Rb6 Rd7 Rc8+ Nc3 Bb2 Bg5 Ba1 Rd6 Bb2 Nc5 Rbc6 Kg7 f6+ Kg6 Ba1 Kf5 Rb6 Ke4 f5 Qe6 f7 Bgf4 f8N Bb1 f6 Qh3 Be8 Kd3 f7 Kc2 Bb5 N3e4 Ne6 Nef6 f8Q Rc6 Be5 d4 Nd8 Qe6 Qh6 Qb3 Qhg5 Rc7 Qb4 Kb2 Rd6 Nce4 Re6 Rc1 Qc5 Bd3 Qa7 Nc5 Rd6 B1e2 Rdc6 Rh1 Re6 Bd1 Rd6 Nh5 Bg7 Nhf6 Rdc6 Nh6 Rb6 Rg8 h8Q Bf5 Qh7 Bb1 Qhf5 Bd3 Qfh3 Bh7 Bf8 Rg6 Bg7 Nhg8 Qgf5 Rg4 Qg5 Nfd7 Rh6 Ndf6 Qe1 Rgg1 Qhg3 Rg2 Qb4 Bbe4 Qa4 Bb7 Qa3+
bnR1n1NB/BR1P3N/1p3bK1/P1n2pn1/Q3Qr1B/1n6/1q3rrk/3B3R b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 h4+ Kg4 d4 Kg3 a4 c5 h6 g5 h7 c4 h5 f3 h6 f2 d6 g4 d5 b3 Be3 c3 Nf3 b2 Ng5 c2 Nc3 c1N Rb1 Qf6 Qe1 Ra5 Ba7 Bg7 e3 Rb5 a5 Nd3 Be2 Kg2 Bd1 f1R Qh4 g3 Qg4 Rg1 Qe6 Qd4+ Kf5 Nf6 e4 Nc5 e5 Rf8 h8R Rb4 h7 Bd7 Nce4 Bc6 Rg8 Qd2 h8B Qe2 Ra1 b1N Nh7 Nd2 Rb1 Rc4 Rb6 Ndb3 Qd7 Rb4 e6 Qb2 e7 Rd4 e8Q Rd2 Kg5 Rf1 Rg1+ Kh2 Qg4 g2 Qe2 Nfd7 Nef6 Rf3 Qb5 Rg3+ Kh5 Rf2 Qa4 Rg4 Re1 g1N Qee4 Rgg2 Rb5 Nh3 Rh1+ Kg3 Rb6 Ng5 Rb4 Nce6 Rb6 Ndc5 Rb5 Nc7 Rb6 Re8 Rb5 Re6 Rc8 Ne8 Ng8 Ref6 Rb6 R6f5 Rb4 f6 Kg6 R5f3 Rb5 f5 Rb6 Bc3 d7 Rf4 Rb4 Nge6 d8B Be5 Rd4 b6 d6 Ba8 Bg5 Bf6 Rc4 Nb7 R4c7 N7c5 d7 Nd8 Rg1 Kh2 Rb7 Nf7 Re1 Kg3 Bh4+ Kh2+ Kh5 Ng5 Kg6 Rc2 Rf1 Rcf2 Rh1+
1QRkr2N/3p4/q2R3n/4bp2/N2RNBP1/rn4nn/3r1PBK/1bn3RQ b - - 0 1 illegal: No possible last move, all moves rejected
b2NbBR1/3p4/nRQ4n/k1p2Pb1/4NrrP/3KBbn1/2B2B2/Rq4bQ b - - 0 1 illegal: No possible last move, all moves rejected
1b6/1BP2P1b/1n1n1r2/1Br1bn2/1qp1R1K1/1N1b1N2/p1R1Q2Q/kb1BQ1B1 b - - 0 1 illegal: No proof kernel
nbR1RQ2/Pn1q2N1/1BQ5/1Q1Rb1Br/1N1k1p2/2r1prrb/3r1P2/1K5R b - - 0 1 legal: proof: e4 a5 g4 d5 exd5 c5 b4 cxb4 Bd3 h5 Bc4 a4 Bb3 axb3 gxh5 Rh7 Nf3 Rh6 Ng1 Rh8 h4 Kd7 a4 Kd6 c4 Ke5 d3 b5 Kd2 g5 a5 f5 c5 g4 h6 g3 c6 b2 Kc2 g2 c7 Na6 d6 Qd7 h7 Nh6 h5 Nf7 h6 Kd4 Nc3 b1R Nd5 e5 Bg5 e4 Qe2 e3 Nh3 g1B Nhf4 Bh2 Nh5 Be5 Ng7 Rg1 Rc1 b3+ Kb1 b2 Nb4 Rg3 Rc5 Nd8 Qf3 f4 Qc6 Rg8 h8R Nb7 h7 Rf3 Ne8 Rg6 Ng7 Rh6 Rg8 Rh5 h8Q Be7 Re8 Rb8 Ka2 b1R Qf8 Rg1 Kb2 Rgg3 Kb1 Qg4 d7 B7d6 d8Q Qd7 Qde7 Ra8 Qef7 Ra7 Qb3 Ra8 Na2 b4 Qba4 Rb8 Qab5 b3 Nb4 b2 Rf1 Qe7 Rh1 Bh3 c8R Nc7 a6 Na8 a7 Qf7 Rc7 Rd8 Rc8 Bb8 Qg8 Qc4 Qf8 Kc3 d4 Rd7 d5 Kd4 d6 Qe6 Kc2 Rd8 d7 b1R Na2 Rd1 Nb4 Rd2+ Kb1 Qd6 Re7 Re8 d8B Qd5 Bb6 Qd7 Rf7 Re6 Re7 Rd6 Ree8 Rd3 Qa6 Rc3 Qcb5 Ke4 Qaa4 Rd2 Qc6+ Kd4 Qa5 Ra3 Qab5 Rc3 Rd5+
8/P1b4K/b1P1n1r1/3bp2R/2p1QN1B/k1qQn2b/R1BN1b1Q/1RQ2r1r b - - 0 1 illegal: No proof kernel
b5k1/PN1pQ1Rn/1b3nB1/1n4Pp/rr5n/2B3Q1/2q1RNNK/2n1bB1B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 a4 Kf7 g4 b5 c4 h5 f4 e5 Kf2 b3 Kg3 d3 f6 b4 a5 d2 f5 b2 c5 e4 g6+ Ke8 a6 e3 c6 e2 g7 Kf7 a7 e1B+ Kh2 b3 g5 Qe7 c7 Qe4 Qf3 d1N Ra2 Na6 Nh3 Nf2 Na3 b1N Bd2 b2 Nc2 Bc5 Ne3 Nb4 Bc3 Na3 Qg3 b1N Ng2 Nbd3 Re2 Bb7 c8B Rb8 Rg1 Ba8 Bb7 Nb5 Rh1 Nd1 Nf2 Nd2 Rg1 Rh6 Rh1 Ne7 g8B+ Kf8 f7 Ra6 Bd5 Ne3 Bh7 Ra4 Bg6 Ng8 Rg1 Bd4 Rh1 Kg7 f8N Nf6 Ne6+ Kg8 Bc6 Bc5 Nd8 Bb6 Nb7 Nh7 f6 Nf5 Rg1 Nc1 f7+ Kf8 Rh1 Qc2 Rg1 Ne4 Rh1 Ke7 f8Q+ Ke6 Qc5 Nh4 Qce3 Ke7 Rg1 Kf8 Rh1 Nef6 Qe7+ Kg8 Ng4 Rf8 N2e3 Bc7 Bfg2 Rc8 Rf1 Ne4 Rf7 Bb6 Nf2 Rc7 Bf1 Nef6 Bh1 Rcc4 Ng2 Rcb4 Rg7+
q3Q3/pr1Q1N2/2Kbr1RB/rpnB3P/1N3b2/N1Q2k2/1RQ2Pbr/4n1r1 b - - 0 1 illegal: No possible last move
3q1n1k/5RQn/3NB1Qb/r1BbRN1K/1b2p3/1Pr3r1/P2nQp1B/5Bb1 b - - 0 1 illegal: No possible last move, all moves rejected
2NQbb2/3nnRqb/N3Q3/R1rn1r1p/3Q2B1/nKPr2k1/1P1p3N/3NB3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 Kf6 f4 a5 c3 h5 Kc2 d5 b6 e5 b7 h3 Na3 h2 Kb3 a4+ Ka2 e4 Qe1 e3 Nf3 d3 Nc4 e2 Nb6 d2 Bh3 d1R Bd2 a3 Kb3 d4 Rf1 h1B Nh2 Bd7 Nc8 a2 Rf2 d3 g5+ Kf7 f6 Kg6 f7 Qc7 Rf3 Ra5 Bg4 Ne7 Qg1 e1N Qd4 Ng2 Be1 Rc5 f5+ Kh7 f6 Kg6 Rf1 Be8 Rf4 Nd7 b8N d2 Na6 Ne3 Rf5 N3d5 Rf3 Kh7 g6+ Kh6 g7 Kg5 g8N Qa7 Rf4 Be4 Nh6 Bh7 Rf3 Qc7 Rf2 Kh4 Rf5+ Qg3 Rf4 Bg7 f8Q Rg8 Qf7 Bf8 Qe6 Rc1 Bf2 Rf1 f7 Rg5 Be1 Rf3 Rf6 Rd3 Rf4 Rf5 Rf2 Bg7 f8Q Qe5 Qh8 Bf8 Qhg8 Kg3 Qg5 Nc6 Qd8 Qg7 Rf4+ Kg2 Rf3 Nce7 Rf1 Re5 Rf7 Rf5 Bd1 Kh3 N6g4 Kg2 Nf2 Kg3 Rb1 Qg5 Bg4 a1N+ Ka2 Nc2 Ra1 Qg6 Kb3 Qg7 Ra5 Na3 Nd1+
1RKb2rN/4Qqrr/7Q/2pn1B2/1nn1RRPp/2P4B/4Q3/rk1NRb1b b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 e4 Ke7 e6 f6 e5 Ba6 Bf4 Bc8 Bg3 Ke8 e7 Kf7 e6+ Kg7 Be5 fxe5 Qe2 Kg6 Qd1 Kf6 Ke2 Kf5 Kf3 c5 e8R d5 b4 h5 b6 a5 e7 d4 b5 a4 b7 h3 b6 h4 Qe2 a3 Nc3 a2 Nd1 d3 c3 h2 Nh3 d2 Nf4 Nf6 Ng6 Nc6 b8Q Rh7 b7 Qc7 Nh8 Nd5 Qa7 Ncb4 b8R Ba6 Qb6 Bg7 Qh6 Bf6 Rc1 a1R g4+ Ke6 Rg1 h1B+ Bg2 Kd6 Ke4 Kc6 Kf5 e4 Ke6 e3 f4 Rg7 Qc4 e2 f5 e1R+ Qe2 Bg5 f6 Rf1 Nb2 d1N f7 Ne3 f8Q Nc4 Bh3 Rff7 Rce1 Qb7 Nd1 Kb5 Rgf1 Ka4 Rf3 Ka3 Rf4 Rh7 Qfg7 Bb5 Qge5 Rfg7 Qc7 Ba6 Kd7 Bb5+ Kd8 Qa7 Kc8 Kb3 Qee6 Kc2 Qe2+ Kc1 Rg8 Bf6 e8B Kb1 Bd7 Bd8 Re4 Qa2 Bf5 Qa7 Qcd6 Qf7 Rf8 Nce3 Qf3 Bf1 Qe2 Nc4 Qe7 R8a6 Rb7 Rag6 Rb6 Rg8 Rb8 R6g7 Bg6 Qe8 Rff4 Qf7 Bf5
1N1nrQK1/4BRN1/1Q6/1pNB2P1/4q1rb/n1n1nQ2/1pbR1N1P/k1r3b1 b - - 0 1 illegal: No proof kernel
1r1RQ2r/1k1N3n/b3B1n1/P1nq1PrN/2Q3Np/2bpRN2/K3b1b1/BB6 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 b5 g4 h5 f4 d5 c4 Kd7 Kc2 Kc7 Kb2 e5 a4 e4 c5 e3 g6 b3 c6 b4 a5 h4 g7 d3 g5 e2 g6 e1N f6 d4 f5 d2 f7 Nc2 Bd3 Qd5 Ra3 Ne1 Qh5 d1B Nf3 Ba6 Ne5 Ng2 Nd2 Nf4 Bb1 Bde2 Rd1 Nd7 Ng4 Nc5 Nf3 Nf6 g8N Bg7 f8N Nh7 Nd7 Rb8 N8f6 Kc8 c7 Kb7 Bd2 Rbg8 Bc3 Rb8 Ne8 Bf6 g7 Ng6 g8Q Be5 Kc1 b2+ Kc2 Bf6 Ng7 Be5 Qe8 Bf6 Qg5 Be5 Nh5 b3+ Kd2 Bg7 Qge3 Bf6 Qd3 Bg7 Qc4 Bf6 Bc2 b1R Ba1 b2 Re3 Rc1 Be4 b1B Bd3 Rc3 Be4 Bc2 Kc1 Ba4+ Kb2 Bc6 Bb1 d3 Ka2 Rc1 Rg1 Bc3 Rg2 Rg1 c8B+ Ka7 Ndf6 Ka8 Be6 Kb7 Rg3 Rg2 Nd7 Rg1 Ngf6 Rg2 Rg4 Rg3 Rd4 Rg5 Ng4 Qd6 Ne1 Bg2 Nf3 Qe5 Ndf6 Qe4 Rd8 Qd5 Nd7
Q1QR3k/QRBKnr1q/2B2b1P/bn6/2rB4/1b2BpPN/5p2/Nr1r2n1 b - - 0 1 illegal: No proof kernel
q4nR1/2Q1QrBr/2rn2Bp/1nb1Q2R/3p4/bN1bP2K/N3P1r1/k4Q1R b - - 0 1 legal: proof: h4 e5 d4 b5 a4 g5 axb5 gxh4 d5 e4 d6 e3 fxe3 cxd6 Bd2 d5 Bc1 d4 Kf2 Ke7 g4 Ke6 Kg2 Kd5 b4 Kc4 b6 a5 g5 d5 b5 f5 g6 d3 c3 d4 g7 h3+ Kh2 h6 b7 d2 b6 f4 Qe1 Kb3 c4 d1N c5 f3 c6 a4 c7 a3 Qa5 a2 Qe5 f2 Nc3 Ra6 Bg2 f1R Nf3 Bf5 c8Q Nd7 b8Q Rh7 b7 Bd3 Ba3 Ngf6 g8R Ne4 Ne1 Rc6 Qe7 Rff7 Qbe5 Nd6 Qc7 Qa8 Bc5 Kb2 b8Q+ Bb5 Rc1 a1B Na2 Nc3 Kg3 h2 Be4 Rh8 Qbd8 Bd3 Bg6 Rhh7 Kh3 Ncb5 Q7f6 Be7 Qf1 Nf8 Rc2+ Kb1 Bb4 Bb2 Rc5 Ka1 Ba3 Bc2 Nd3+ Bb1 Ndc1 Bd3 Bb4 Ba3 Rd5 Ne4 Qdd7 Bc5 Qde7 Ned6 Be1 Rf6 Bh4 Rf4 Bf6 Rf5 Bg7 Rf7 Rg1 h1R+ Kg3 Rh5 Rh1 Rg5+ Kh3 Qd8 Qe4 Rg1 Rh5 Rg2 Q4e5 Qa8 Nb3+
1B1RbnQ1/1bN1r1b1/1r1NbPp1/2Rr1BqN/1p3Q2/2QPk3/K7/4nQn1 b - - 0 1 illegal: No proof kernel
2R1b1K1/1Q3rn1/1PBBq1QN/3p2rR/b5P1/nQ1n3N/1Qb1pr2/b3kB2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 b4 h5 g4 d3 c4 e4 f4 a4 c5 e3 c6 a3 b6 a2 c7 e2 b5 d2 b7 h3 b6 h2 Nh3 h4 Rg1 h1B+ Bg2 Ra5+ Kd4 Bg7 Bf1 Bc6 Qb3 d1B Na3 Ne7 Rh1 Na6 b8Q Qg8 Qb7 Qe6 Nc4 Bc2 Ba3 Nc5 Ne5 Ba4 Rc1 a1N Nf7 Rf8 Nh6 Nd3 Bd6 Rf7 Rh2 Bh8 Rh1 Kg7 f6+ Kg6 Qb2 Rd5+ Kc4 Nf5 Qb3 Ng7 Qb2 Re7 f7 Rg5+ Kd4 Kf6 f8Q+ Rf7 Qe8 Kg6 f5+ Kf6 Ba3 d5 Bd6 Bcd7 c8B Bdb5 Bd7 Bc6 Ng1 h3 Qb3 h2 Nh3 Bb1 Rc3 Bc2 Qg8 Bcb5 Rc8 Bc6 Rg1 Bcb5 Bc6 h1R Qb2 Rh2 Rh1 Rf2 Qe8 Qd7 Qe3 Ne5 Qeb3 Nd3 Ng1 Qe6 Rh5 Bb1 Nh3 Nc2+ Kc3 Na3 Kd4 Ne8 Q3a2 Bbc2 Qab3 Kg7 f6+ Kg6 Qa6 Ng7 Qb7 Re7 f7 Kf6 f8Q+ Rf7 Bb4 Kg6 Qg8 Kf6 Kc3 Ke5 Bd6+ Ke4 Qh7+ Ke3 Qg6 Nf4 Kb4+ Kd2 Kc5 Ke1 Be7 Qe3+ Kd6 Nd3 Kd7 Qe6+ Kd8 Nf5 Ke8 Be5 Q2a2 Ba1 Qab2 Rg7 Kf8 Rf7+ Kg8 Ng7 Qa8 Qf6 Bd6 Qe6 Bb7 Bd7 Bc6 Be8 Qb7
2n2n1q/6n1/1pQR3r/b1p4B/2PQr2b/3RQKNR/b1krBNP1/1n5R b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 hxg5 Ra4 Bd2 Ra7 Bc1 Ra8 e4 f6 e6 Bd6 e5 Bf8 e7 Kf7 Be3 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Ke2 Kb5 e8B Ka4 f4 c5 a3 h5 e7 e4 f5 b6 g6 h4 f6 h3 c3+ b3 f7 h2 g7 e3 Qe1 b2 Nd2 b1N Qg3 Rh6 Ne4 Kb3 a4 d5 a5 d4 a6 d3+ Kf3 d2 a7 d1R Ra2 e2 Nh3 e1B Ra3+ Kc2 Qf2+ Rd2 Ng3 Be6 Qd4 Ba2 c4 Nd7 Nf2 Rc8 a8Q Rb8 Rg1 h1N Be2 Rc8 Re3 Rcc6 Rd3 Rce6 Qc6 Re4 Nf5 Ng3 Rh1 Nh5 Ng3 Ngf6 g8Q Nd5 Qg5 Bg7 f8R Bf6 Qge5 Bh4 Rh8 Ng7 Bh5 Nf8 e8R Ne7 Rh3 Nc8 Re6 Qd5 Rd6 Qg8 Rh7 Qh8 Qe7 Rd1 Qg5 Ba5 Qge3 Rd2 Be8 Rhe6 Rh5 Rh6 Rh1 Bf6 R5h3 Bh4 Bh5
1b1Rb1bB/1N1n1qr1/P2Q4/4QRr1/2B1pp1b/1K2n2P/5Nkn/R3NR1r b - - 0 1 illegal: No proof kernel
3Q3K/1NN2N1p/nbQQn2b/rq3BpR/rQ4rB/1P3nP1/k3nb2/7R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 h3 Ba6 d5 g5 d6 cxd6 h4 d5 h5 d4 axb5 Bb7 Qd3 Bd5 Qd2 Bf7 Qd1 Bg6 hxg6 Qc8 Nh3 Qc7 Ng1 Qd8 Kd2 d5 f4 Kd7 c4 Ke6 c5 a5 g7 a4 c6 d3 Kc3 d4+ Kc4 e3 b6 e2 c7 e1N c8Q+ Qd7 b7 d2 Bd3 a3 Rh3 a2 Qc7 Ra5 Rh5 Na6 b8Q Nf6 Nc3 Ne8 Na4 Nf3 Qb4 Rg8 Qd8 Nec7 f5+ Ke5 b3 Ne6 Be4 d3 f6 Qb5+ Kc3 Rh8 g8Q Bh6 Qg6 Re8 Qc2 d1R f7 d2 f8N Re1 Bd3 Re4 Nc5 Rg4 Nb7 Ra4 Rb1 a1B+ Bb2 Ra5 Bf5 Ra4 Qcd3 Ra5 Qdc4 d1N+ Kd3+ Nc3 Bc1 Na4 Be3 Bd4 Bf2 Nc3 Bh4 Ne2 g3 Bb6 Rc1 Nec7 Ne6 Rg8 Ng7 Ne6 Ne8 Rf8 Nc7 Rf6 Be4 Rff4 Bf5 Re4 Nh3 Ref4 Rh1 Re4 Nf2 Ref4 Kc2 Rd4 Qc6 Rdf4 Qbd2 Rfa4 Ne4 Nec5 Nf6 e6 Na8 Bf8 Qe1 Bh6 Nd7+ Kd4 Nc7 e5 Qge6 e4 Ne5+ Ke3 Qed6 Ne6 Nd5+ Kd4 Nf7 e3 Kb2 N2f4 Kc2 e2 Nc7+ Ke3 Qeb4 e1B Kb2 Bf2 Kc3 Ne2+ Kb2 Neg1 Kc3 Ke2 Bd3+ Kd1 Bb1+ Kc1 Bf5 Rc4+ Kd3 Nfd4 Ke4 Kb1 Bg6 Ka2 Bf5 Bc5 Ke5 Nde2 Kf6 Nf3 Ne5 Bcd4 Kf7 Bc5 Kg8 Rg4 Nf7 Bb6 Kh8
N3Qr2/1k2rqnp/2Qr1bR1/3n1pBb/2Q3n1/1r2NPB1/1Q3PbR/3KN3 b - - 0 1 illegal: No proof kernel
5rnQ/4np2/3KQbP1/bpNR2q1/1Q1N3n/1B1PB1QB/r3b3/1kR3rn b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kc5 a4 h5 g4 b5 g6 f3 d3 b3 g7 Kb4 d6 c5 a5 b2 g5 f2 a6 h4 d7 c4 a7 h3 Be3 h2 Bh3 f1N Nc3 b1R Nge2 Ng3 Nd4 Be7 Qe1 Nf5 Na4+ c3 Nc5 Nh4 g6 Rd1 Rc1 Ka3 Qg3 Bf6+ Kd6 Kb2 e5 c2 e6 Rg1 e7 Nc6 e8Q Nce7 Qf8 Bb7 Qe8 Bf3 Qf8 Qe8 d8Q Be2 Qd7 Qc8 Qc6 Qg4 Qe4 Qg5 Qe6 Re1 Rf1 h1N Rf5 Rg1 Rd5 Ka2 Qd8 Kb2 Qa5 Rf8 a8B Rh5 Rf1 c1B Qb4+ Ka2 Bb7 Bd2 Rc1 Rh8 Qc4+ Kb2 Ba8 Ba5 Qb4+ Ka2 Bb7 Nh6 g8Q Rh7 Qh8 Nhg8 Rc3 Rh6 Re5+ Ka1 Bd5 Rh7 Bb3 Kb1 Rd5 Nhf5+ Kd7 Bf1 Bg2 Rh2 Rc2 Nh4 Bh3 Re2 Rc4 Ra2 Kd6 Be2 Rc1+
Q1B5/1r2pb2/KBnR1n2/1N2r1Bp/nqQ1P1R1/2R1br1R/N3Pkn1/1b6 b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 b5 axb5 g5 f3 gxh4 Bg5 Qb6 Bd2 Qe6 Bc1 Qe4 fxe4 Bh6 Rh3 Bg7 Rh1 Bf8 Kd2 h5 Kd3 d5 c4 Kd7 b4 Ke6 g4 Ke5 b6 a5 g5 f5 b5 h3 b7 h2 b6 f4 c5 a4 c6 f3 c7 a3 g6 a2 g7 f2 Nc3 Nf6 g8Q Nc6 b8B Bh6 b7 Be3 Ba7 Kf4 b8R Be6 c8R Bf7 Rb3 Rb8 Rab1 a1R Bb6 Ra5 Bh3 f1N Rd8 Rb7 Qg7 Rf8 Bg4 Kg3 Rb5 Kf2 Rc5 Rb5 Qb3 Ra5 Kc2 d3+ Kb2 d4 Nf3 d2 Qg8 d1B Qc4 d3 Rd6 d2 Nd4 Bb3 Bc8 Ba2 Ndb5 d1N+ Kc2 Nb2 Qh8 Bh6 Bg5 Na4 Kd3 Ne3 Rbg1 Ng2 Qg8 Nh4 Rg4 Ng2 Qe6 Bb1+ Kc4 Be8 Na2 Bf7 Rc1 h1Q Rc3 Qe1 Rcd5+ Nc5 Rdd3 Qd2 Rh3 Qe1 Nd4 Na4 Qh8 Re5 Nb5+ Nd4 Kb4 Qd2 Ka5 Qe1 Bc1 Be3 Qc4 Nc6+ Ka6 Qd2 Rb3 Qb4 Rc3 Rg8 Bd2 Rgg5 Bc1 Rgf5 Qd8 Rf3 Qe8 Bc5 Bg5 Be3 Qd7 Rb8 Qa7 Rb7 Qa8
1R2b1nQ/3Pb3/q2r3b/nR1p1rkn/rb2RNpP/Q2NR1B1/4Q3/1B5K b - - 0 1 illegal: No possible last move, all moves rejected
5NR1/2RP2nr/3rQ2p/bn1k1b2/N1RBp2P/6bB/Q1BRr3/Kb1n1q2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 d4 Kd7 Kd2 Ke6 Kc3 a5 Kb2 f5 h4 a4 g4 h6 c4 f3 d5+ Ke5 b6 e3 c6 f2 c5 f4 g5 e2 b7 e1B g6 f3 g7 Na6 b8Q+ Nc7 d6 Nf6 g8R Nh5 Rh2 Rh7 Be3 Ra6 Bh3 f1B Qc2 f2 Nc3 Ng7 Rc1 a3+ Ka1 a2 Nge2 Bf5 Nf4 Nb5 c7 B1d3 c8B f1N c6 Bg3 c7 e6 d7 Qf6 Rd2 Bb4 Qb6 Ba5 Bb7 Qf7 Qb3 Bb1 c8R Qf8 Bc5 Ne3 Be4 Nd1 Na4 Qf7 Qa7 Rd6 Rc4 Qf8 Bd3 Qf6 Ng6+ Kd5+ Bd4 e5 Qb6 e4 Nf8 Qe5 Rg2 Qf4 R8c7 Rg6 Qf6 Qf1 Qe7 Ne3 Kb2 Rd6 Rgc2 a1R Rh2 Ra3 Qa2 Rb3+ Ka1 Rb2 Rg2 Rd2 Bc2 Nd1 Qf6 Rd3 Re2 Re3 Rd2 Re2 Qe6+
r2Q1Bn1/B1qP1Bb1/2Nb1R1p/Pk5N/2n1N2K/3b1Np1/1n1rQ3/3brR2 b - - 0 1 illegal: No proof kernel
2bqRbQr/B1Rp4/3n3Q/Q3r2k/2PQr2N/3bn1np/BP1b1B1K/1N6 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 Bg7 f4 Kf7 Kf2 h5 Kg2 a5 c3 e5 b6 e4 f6 Kg6 b7 e3 g5 e2 f7 e1B f8B d3 Bb4 a4 Ra3 d2 Bc4 Ne7 Rh3 Na6 b8Q Nf5 Qb6+ Nd6 Bc5 Nc7 Bf2 Nd5 Re3 Ra5 Nf3 Rc5 Rb3 a3 Re8 a2 Qa5 Bh6 Rb7 a1R Rc7 Ra4 Ba2 Re4 Qda4 d1B Bce3 Bc2 c4 Rb5 Ba7 Ne3+ Kg1 Rbe5 f5+ Kf7 f6 Kg6 Qa3 Bd2 f7 Bd3 f8Q Bg7 Q3c5 Bh6 Qf4 Bf8 Bb3 h3 Ba2 h2+ Kh1 h4 Qd4 Kh5 g6 Bf1 g7 Bd3 g8Q Nf1 Kg2 h1N Kg1 h3 Nh4 Ne3 Kh2 Ng3 Qh6+
nr3Nb1/KR1pN3/PB1qb3/b3rN1P/1R2rQB1/2Q2b2/kp2R2N/6nn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 g5 Kc4 e5 Kb5 g4 c4 e4 a4 g3 h4 e3 f4 d3 h6 g2 c5 e2 h7 e1R f6 Ke6 f7 Kd5 h5 b3 f5 d2 a5 b2 c6 Nf6 c7 Na6 Kb6 Re5 Na3 b1B Nb5 Ba2 Nd4 Rb8 Be2 Bb4 f8R Ne4 f6 Nf2 f7 Qf6+ Ka7 b5 Re8 Qd6 f8N Bb7 c8N Nc7 a6 Ba5 Qf1 d1B Rb1 b4 Rb3 Na8 Rh4 Nh1 Ngf3 g1N Nf5 Rg8 h8Q Rg4 Be3 Rge4 Rb1 b3 Nh2 Bc6 Bg4 Bf3 Qf2 Kc4 Bb6 Bd5 Nce7 Bg8 Qg3 Kb4 Qf4 Ka3 Rb2 Be6 Re2 b2 Qg7 Rb5 Qc3+ Bab3 Rc8 Rbe5 Rc7 Ka2 Rb7 Bg8 Rh3 Bbe6 Rg3 Bg2 Rd3 Bf3 Rd4 Nh3 Rc4 Ng1 Rb4
2rrn3/1Kp1bQ2/QB1Q2B1/pN2P2N/2n3b1/6qP/1n3b1b/Q1RB1rRk b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Kd7 Ke3 Ke6 Ke4 a5 d4 g5 b4 g3 h3 c3 d5+ Ke7 e6 Kf6 b6 g4 d6 c2 Kd5 Kf5 e4+ Kg6 d7 Kh5 b5 Kh4 b7 f5 e5 f4 e7 f3 e8B f2 b6 g2 Ra2 Kg3 Be3 c1N Nc3 Qf6 d8Q Qg5 Be2 f1R Qd6 Nd3 Bg6 Nb2 Nb5 Be7 Qa1 Nd7 Kc6 Ngf6 b8Q Ne8 b7 Nb6 Bd1 N6c4 Ne2+ Kf3 Qa7 g1B b8Q Kg2 Qa6 g3 Qbb7 Bf2 Bb6 Bg4 Qb8 Rf8 Kb7 Rg8 Qbd8 Rc8 Q8d7 Rh8 Rg1+ Kh2 Nf4 g2 Q7e6 Qh4 Qf6 Qg3 Nh5 Be1 Be2 Nd3 Qc5 Rf2 Qc1 Ned6+ Kc6 Rhd8 Qf7 Ne8 Qa1 Rf3 Rd2 Ndb2 Qd6 Rf6 Rf1 g1B Kb7 Kh1 Rc2 Rf4 Rf2 Rf6 Rg2 Rf1 Bd1 Bef2 Rc1 Bh2 Rg1+
R2nrBrr/b1p5/b1pnQ3/6bP/4Rr2/4n1K1/N1BqkQP1/QQ1NN3 b - - 0 1 illegal: No proof kernel
R1Bk4/Pb4Kn/pQn4B/2R1PbN1/3rrqrb/1N1pQ3/2R2r1R/4Q2n b - - 0 1 illegal: No proof kernel
K1B4n/P3bPk1/Q2N4/qr1pNR2/3r2R1/p1bn2B1/Q2Bb2B/Q2n2rn b - - 0 1 illegal: No proof kernel
n1Qb3n/P1qPb3/B5r1/2k1Nb1r/p1QR4/1R1R1Qn1/1N1rp2r/2KRB3 b - - 0 1 illegal: No proof kernel
1K5n/Pp4B1/1n4r1/R3RN1b/bbBq4/nR1p2r1/k4Pr1/Qn1RNN1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 Kd3 e5 Ke4 g5 Kd5 e4 h4 g4 a4 b3 c4 e3 h6 e2 a5 e1N c5 b2 h5 d6 f6 g3 h7 g2 c6 d3 a6 d2 c7 Nc2 a7 Na3 h6 Be7 Nf3 g1R Bc4 Rg6 Ne1 Bg4 c8N Nd7 Ra2 Bf8 Ne7 Bh5 Nf5 Be7 Qc2 d1B Nd2 b1N Qc3 Ba4 Nf1 Rb8 Bb2 Nb6+ Ke4+ d5+ Ke5 Bb4 Rh3 Kf8 f7 d4 Rd3 Rg2 Rd1 Ne7 Ke6 Rhg8 h8Q Ng6 h7 Qh4 Ba1 Ra8 Rb2 d3 Rb3 Rc8 Bb2 Rc5 Kd6 Rb5+ Kc7 Qd4 Ba1 Ra5 Kb8 Ra6 N5e3 Ke7+ f8R Kd6 Nf5+ Kc5 Re8 Ne5 Bb2 Nf7 Ba1 R8g3 Re5+ Nd5 Qg7 Rh6 h8R Rhg6 Rd8 Nh8 Qh7 Bg4 Qh1 Bh5 Re3 Nb6 Rg8 Re6 Rg5 Rg6 Re5+ Qd5 Re7 Ba5 N5e3 Nb5 Qc2 Bd2 Bg7 N5a3 Rc3 Kb4 Qc1 Qe6 Ra5 Qe4 Nf5 Qe3 Ree5 Qd4 Rc2 Nb5 Rb2+ Ka3 Rb3+ Ka2 Qg1 Bb4 Qh1 N5a3 Qd2+ Nc2 Qc3 Nca3 Qa1+
2rQ1Rq1/pN1rk2n/3b3p/N1NP1BR1/2Nn1B2/2PRn1bK/3n2r1/1Q3b2 b - - 0 1 illegal: No proof kernel
3QbB1n/pq2P1Nn/2RK1NrR/B1Q2rBB/2b2npP/1Qb4r/2k5/6r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 b4 Ke5 b6 Kd4 b7 f5 d6 c5 b5 g5 e5 f3 Kg3 f2 e6 c4 d7 c3 b6 c2 Ra6 Rh7 Be2 f1B Nc3 Nf6 Nh3 Bb4 Ne4 Qc7+ Nf4 Bc3 d8Q+ Nbd7 b8B Qb7 Bd6 Ne5 Nh5 Nf7 Ng7 Bd7 Bf8 Nh8 e7 Rh5 d3 Nh7 Nf6 Rc8 Bf4 c1N Qb3 Rc6 Qc8 Be8 h3 Qd7 b7 Rd6 b8Q Qb7 Rc6 Rh4 Kf2 g3+ Kf3 g2 Qcc7 g1R Qbd8 Rh6 Bd2 f4 Qa5 Rg6 Qaa3 Rd5 Qc5+ Ke5 Rh2 Rh1 Kg4 f3 Kg3 f2 Bh5 g4 Bg5 Be2 h4 f1R Rf2 Bf3 Ra2 Be2 Raa6 Bf7 Ng8 Rd1 d4+ Ke4 Nf6+ Kd3 Kf4 Be8 Rab6 Re5 d5 Rdg1 d6 Rh3 d7 Kd2 Ra6 Rd5 Rab6 Nd3+ Ke4+ Nf4 Ra6 Rd4+ Ke5 Bc4 Rab6 Re4+ Kd6 Re2 Qc8 Ree3 d8B Ref3 Ra6 Rff1 Ba5 Kd3 Qd8 Rf2 Qbb5 Kc2 Rab6 Rff3 Qb3+ Kd2 Rc7 Rh6 Ra6 Kd3 Rc8 Nd5 Ke6 Rf5 Rc7 Bg6 Ne4 Bf7+ Kd7 Nf4 Re6 Be8+ Kd6 Rhf6 Rc6 Rf7 Rh6 R7f6+ Ne6 Rg6 Nf6 Kd2 Ng7 Kc1 Qbb5 Kc2 Qb3+
2nrB1KR/1nn2RBQ/1n1k1B2/R2r1R2/pP3p2/2Q1b2P/n2N1qq1/3b2N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 a5 b4 g5 d4 c5 b6 f5 d6 g3+ Kf3 c4 d5 c3 h3 a4 e5 g4+ Ke2 f3+ Ke3 f4+ Kd4 g2 b7 c2 Qe1 f2 Nd2 g3 Bb2 c1N Bb5+ Nc6+ Kc5 f1N b8Q Qc7 Qb7 Na2 Rc1 Ra5 Qe3 Bg7 Qc3 Ne3 Qa7 Qb7 e6+ Ke8 d7+ Ke7 d8R Nc4 Rd6 Nd8 Ra6 Nb6 Re1 Bd7 Re5 Bf6 Kd4 Kd6 e7 Bg4 e8R Bd1 Rh2 Qa8 Qh7 Ne7 Bd7 Rc5 Ra5 Nb7 Ke4 Bg7 Rf5 Bd4 Rg8 Be3 Be8 Qa7 Rf7 Nec8 Kf5 Qa8 Kg6 Rb5 Kg7 Qa7 Ne2 g1N Rg2 Nf3 Ng1 Nd4 Re2 g2 Rgf8 Ke5 d6 Rd5 d7 Kd6 d8B Nb5 Bf6 Nc7 Rg8 Bc5 Re5 Be3 Rf5 Qa8 Ngf3 g1Q+ Kf8 Qf2 Ng1 Rd3 Qg6 Rh5 Rh8 Rd5 Kg8 Rh7 Rf8 Rd7 Rf7 Rd8 Ba1 Qa6 Qh7 Qaf1 Bg7 Q2g2 Qa3 Qgf2 Baf6 Q1g2 Qc3
bkB4b/4B2r/2qb1Q2/2Q2KRP/1R1R1n1N/1p1pPq1r/2Nn3R/5bNb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 f5 Kg3 d5 Kf4 Kd7 a4 Kc7 h4 b5 c4 g5+ Kf3 d3 e6 d2 a5 f4 Kg4 f3 c5 f2 a6 b3 h6 b4 h7 b2 h5 d4 a7 Bb7 e7 Nf6+ Kf5 g4 e8Q g3 c6 g2 Rh4 Nbd7 Rh1 Ne5 Ra5 Bd6 Na3 b1B+ Qc2 d1Q Bg5 Nd3 Qe6 Qc8 Rh2 Ne4 Qc5 Nd2 Be7 Nf4+ Nc2 Rb8 Ra4 Ba8 Ra5 Qb7 Qf6 b3 Ra4 Rbg8 Rb4 Rg3 e3 Qf3 Be2 f1B Ba6 Kc8 c7 Rh3 Bc4 Qb6 Be6+ Kb7 c8R Be5 Rc4 Qbc6 Rg8 Kc7 Rg5 Bd6 Ne2 g1B Bc8 Bf2 Ng1 Bh4 Rg6 Bg5 Rb4 Bh6 Rg3 Bg7 Rg5 d3 Na1 Bc2 Rd4 Bd1 Nc2 Bde2 Rb4 Bg2 Rd4 Bef1 Rb4 Bb7 a8R Bh1 Raa4 Kb8 Rd4 Ba8 Rac4 Rf8 h8N Rf7 Ng6 Bh8 Nh4 Rh7 Rb4+
2b4N/n2b4/nRNrr3/3p2Pb/1R1R1p2/kb3Qb1/1BqP1RNQ/K2B3q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 g4 Ke7 c4 f5 e4 h5 c6 Kd6 b6 Kc5 b7 Kb4 g5 a5 c7 d5 c5 f3 e5 h3 c6 f4 e6 a4 e7 a3 e8Q a2 Nc3 h2 Be2 h4 Ne4 h3 Nd6 Bg7 Nf7 Ne7 Bb2 Bd4 Rb1 a1Q Bc3+ Ka3 Rb4 Na6 b8N Rh6 Nh8 Rd6 Qh5 Qg8 Qh7 Qg6 Rb6 Bd7 c8R Qc2 c7 Nc6 Qh4 Na7 Nc6 Be3 Rcb8 Re6 R8b7 Rd8 c8R Qab1 Ra8 Bc8 Rb4 Rdd6 R7b6 Bc5 Rd4 Qa1 Rab8 f2+ Kf1 Qac1 Nf3 Qa1 Rg1 h1B Ne1 Be4 Rg2 h2 Bh5 h1B Ke2 Bd7 Qh2 Qab1 Rbb4 Qbc1 R8b6 f1B+ Kf2 Bfd3 Qf3 Bc4 Bg4 Ba2 Ke2 Bb3 Rf2 Bg2 Bh5 Bh3 Ng2 Bg6+ Re4 Qa2 Kd3 Qh1 Bg4 Bh5 Red4 Re1 Qe3 Bc8 Bd1 Bhd7 Qf3 Qb2 Qfg3 Ree6 Qf3 Ba2 Qhg3 Qb3 Qh2 Qc4+ Kc2 Bb3+ Kb1 Qd3+ Ka1 Qc2 Rd3 Bd4 Rf1 Bf2 Rdd4 Bh4 Rf2 Bg3 Bb2+
1N1q3r/1Q1R4/3B1QK1/PBRQ1pNn/1Np1nrn1/8/Pn1b3q/Qb1nk3 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 b5 e3 h5 d6 c5 d5 c4 d7 h3 Kf5 f3 d6 h4 g5 f2 e4 h2 g6 h3 e5 Bh6 g7 Nc6 e6 Ne5 e7 Bd2 e8Q Nd3 Qe7 Nf6 g8N Nb2 Na3 Kc3 Nc2 b4 Bg2 f1N Nf3 b3 Nb4 Ng4 Nf6 Nfe3+ Kg5 Rb8 Qe4 Rb6 Qb7 Rc6 Qg1 Ned1+ Kf5 Ra6 Ng5 Ra8 Qe1 Ra6 Rf1 h1Q Bc6 h2 Bb5 Qg2 Rf4 h1N Rb1 Qe2 Rd4 Qh2 Rd5 Rc6 Rc5 Rc7 Nfh7 f6 Nf8 Ng3+ Kg6 Nh5 Qf1 Nd3 Ba3 b2 Ra1 b1N Qe1 N3b2 Qeh1 Qe7 d8Q Rd7 Qdb6 Qd8 Qhd5 Rf7 Nd7 Rff8 Nb8 Be6 d7 Bg8 Qh1 Bd5 Qe6 Be4+ Qf5 Rf7 Nc2 Kd3 Nb4+ Ke2 Qg1 Nbc3 Rc1 Bc6 Qd5 Ne4 Rc3 Rff8 Rd3 Rf7 Qgd4 Ke1 Qc3 Rff8 Qc1 Rf7 Qa1 Rff8 Ba6 Ba4 Bb5 Bc2 Rd4 Bb1 Rd3 Qc8 d8Q Rf7 Qde7 Qd8 Rd4 f5 Qf6 Re7 Qdf7 Re5 Rd7 Rd5 Q7e6 Rd3 Qd6 Rf3 Qdd5 Na4 Bb2 Rf4 Be5 Nab2 Bd6
bBb1b3/1B6/nq1r2pk/PQ3Q2/Qp1b4/1b1r1P1N/2R1qR1K/1n2NQN1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 Kf7 h4 d5 c4 b5 f6 e5 h6 Kg6 a5 d3 f7 b3 h7 b2 c5 e4 c6 d4 c7 e3 h5+ Kh6 Na3 b1B Ra2 g6 Rh2 b4 Bg2 d2+ Kf1 d3 Bb7 e2+ Kg2 e1Q Qa4 Qe2 Rc2 Bg7 f8Q Ne7 Qf5 Na6 Qfb5 Re8 h8N Nd5 Kh1 Qf6 f3 Nc3 Rf2 Re6 Kh2 Rd6 Bb2 d1B Nf7+ Kh7 h6 d2 Ba1 Ba2 Bb2 Nb1 Be5 Bd5 Bg3 Qd4 Bf4 Qb6 Ng5+ Kh8 h7 Bd4 Bg3 Kg7 N5h3 Kh6 Be5 Bf5 Bg3 Rad8 c8Q Bde4 Qcc5 Bc8 Qf5 R8d7 Rb2 Bb3 Rc2 d1B h8Q+ Rh7 Qhe5 Rhd7 Qec5 Bf7 Qcc4 Be8 Be5 Rc6 Bb8 Rcd6 Ra2 Bb3 Nc2 Rc7 Qd3 Rc3 Ne1 Bed5 Qdc4 Rd3 Rc2 Bce6 Bc8 Ba8 Bb7 Bc8 Qce6 Qd2 Qe2 Qd1 Qf1 Qd2 Qfd5 Qe2 Qf5
2br1Q1B/N1q1nq2/2Pp3B/1B5q/5R1n/KBQ2PRp/3q4/RqN1k1br b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 g4 h5 g5 a5 b6 e5 g6 d3 b7 d2 f6 h3 f3+ Ke3 c5 Kf2 f7 h4 c6 a4+ Ka2 a3 b4 h2 g7 e4 b5 e3 b6 e2 Bg2 e1Q Qc2 Ne7 g8B Qc7 Ne2 d1Q Bh6 Qed2 Rg1 h1Q Bf1 Ke1 Rg3 d6 Nc1 Nd7 b8Q Bg7 f8B Bd4 b7 Bg1 Bfg7 Nf8 Bb3 Nfg6 Bb5 Qf4 Nc3 Qdd2 Qb2 Qf7 Bf6 Rd8 Bh8 h3 Qc2 Nh4 Qb2 Ra6 Qa8 Qhg2 b8R Qge2 Rb7 Qe5 Ra7 Rb6 Ra4 Qeh5 Rf4 Ra6 Be2 Ra4 Nb5 Re4 Bd3 Re2 Na7 Rh2 Bb5 Rh1 B3c4 Rd7 Kb3 a2 Qc3 Rd8 Kb4 Bb6 Bb3 Bg1 Rb1 a1Q Qb8 Qa2 Ra1 Qb1 Ka3 Bb7 Qc8 Ba6 Qf5 Bc8 Qff6 Qbh7 Qg7 Qb1 Qf8
1nBQ2Qk/4KRn1/1p2NrP1/2r5/b5pB/RNP5/1bRQq1q1/1Rnn2n1 b - - 0 1 illegal: No possible last move, all moves rejected
2b2K2/bB1r1B1N/p1P1Rbq1/2QpBr1N/1n4b1/1P2nqBQ/b3N3/1kR5 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 h5 g4 a6 f4 d3 f6 h3 b6 d2 f7 h2 g5 h4 b7 h3 f5 Rh7 g6 Bg7 f8N e5 Kd6 Qe8 f6 Ne7 c5 Nd5 f7 Bf6 g7 Ne3 g8B Nc6 b8B Nb4 Bg2+ Kd3 Qh5 Kc2 Nc3 d1B Bb7 e4 c6 Bg4 Nd5 Ra7 Ra5 Kb1 Nf4 Rh8 Qh4 Rh5 Nh7 Rf5 f8Q Qf7 Nge2 Qg6 Rd1 h1B Re5 h2 Bf7 Bg2 Qh5 h1Q Re6 B2h3 Qh4 Qf3 Nh5 Bg2 Qh3 Bf1 Neg3 Bc4 Ne2 Ba2 b3 Nec2 Kc7 d5 Qc5 e3 Kd6 Bd4 Nef4 e2 Ke7 e1B Be5 Bef2 Kf8 Ne3 Ne2 Ba1 Bg3 Bb2 Rh1 Bf6 Bb2+ Bg1 Ba8 Rd7 Bb7 Nf1 Bbe5 Bf2 Qc4 Bb6 Qc5 Ba7 Rh2 Ne3 Rf2 Qh1 Rf4 Qf1 Rc4 Qf3 Rc1#
8/2N1q1Bp/npQP4/2N1PK1B/1k2nB2/b1q1qb2/QBR1q2r/qR2rR2 b - - 0 1 illegal: No proof kernel
4QbK1/3R2P1/1rB1N2k/rr1RqQQ1/1n4P1/3ppbN1/3N2rn/3qrQB1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 b4 Kg6 g4 h5 c4 a5 f4 e5 b6 d5 f5+ Kh7 b7 a4 g6+ Kh6 c5 a3 f6 d3 Kc3+ e3 g7 d4+ Kc4 a2 c6 h4 c7 d2 f7 e4 b5 e2 b6 e1R Bg2 h3 Ne2 h2 Ng3 Nc6 b8Q d3 b7 Qe7 Kd5 Ra6 Bf3 Bf5 c8Q Nd4 Qe5 Rb6 b8Q Qg5 Qe2 d1Q Nd2 Bd7 Rb1 a1R Qf1 Ra5+ Rb5 Be8 Qcf5 Qe3 Rg1 h1R Qa8 Bd7 Qae8 Rh5 Ba3 Rh2 Bc5 Rg2 Q5e7 Bc6+ Kd6 Nb3 Ke6 Nf6 Bd4 Rg8 Rd5 Rab5 Rd7 Nd5 Bc5 Nb4 Rh1+ Rh2 Bg2 Nd4+ Kf6 Qf4 Qe5 Nf3 Bg1 e3 Ke6 Bc5 f8N Ra5 Qd5 Qe5+ Kf7 Bd6 Ne6 Bf8 Qb5 Rh8 Qd5 Rh5 Qc5 Nh2 Qce7 Rh7 Kg8 Bf3 Q7d8 Be2 Bc6 Bf3 Qff7 Qf4 Qde7 Rhb5 Qf5 Qe5 Q7d8 Qf4 Qg2 Qe4 Nh5 Nf1 Qd5 Qf5 Ng3+ Qh5 Qee7 Kg6 Qec5 Qg5 Rh5 Qf6 Rf5 Rh2 Qe8+ Kh6 Qe2 Rf2 Re5 Nh2 Qf1 Rg2 Qe4 Qe2 Qce7 Qd1 Red5 Qb2 Qf5 Qe5 Qeg5#
K3RB2/b1b1N1P1/3q1RNb/2pN4/Q1P5/1N1B3B/bn1prk1n/rbQ2q2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 h5 f4 a5 b4 a4 e6 a3 c3 h3 e7 h2 e8B a2 b6 h4 b7 h3 b5 e3 b6 e2 Nd2 Kg4 f5 Kg3 f6 e1B f7 Bh6 f8N Bf2 Ba3 Na6 b8Q Nc5 b7 Nd3 Nb3 Nb2 Bg6 Ba7 Bgd3 Kf2 g4 d6 Kc6 d5 g5 d4 g6 Bf5 g7 Nf6 Bc5 Ng4 Ng6 Re8 Bf8 Re2 Qc8 Qe7 b8N Qd6+ Kb7 c5 Qc6 Be6 Rb1 a1B Qa4 Bf7 Qc1 Be6 Bc4 d3 Nc6 d2 Bd3 Bg8 Nce7 Bc4 Nf3 Bg8 Rg1 h1Q Nd5 h2 Nfd4 Qg2 Nc6 h1B Nce7 Nh2 Qc6 Qh3 Qa4 Be4 Rg4 Bf5 Re4 Qf3 Bh3 Qh1 Qc2 Qf1 Re1 Bge6 Qc1 Bf7 Re6 Bg8 Ba6 Bb1 Bd3 Bf7 Ndf4 Bg8 Rf6 Bc4 Nd4 Bca2 c4 Nd1 Nb3 Be5 Re6 Nb2 Nfd5 Qd8 Rc6 Bc7 Ra6 Qd6 Rb6 Bab8 Rc6 Ra6 Rb6 Ba7 Ka8 Qd7 Re6 Qd6 Rf6+ Nf3 Qc3 Re6 Nf5 Nh2 Qb5 Re4 Qc1 Ra3 Nbd4 Bb3 Qa4 Ra1 Re3 B3a2 Nb3 Rd4 Re7 Re4 Re8 Re2 Nfe7+
Qb1BK2B/4P1rR/Q2RbrNr/1R6/Bpq5/r1q3B1/kp3n1P/N2r2n1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 a4 g5 a5 c5 h6 b5 a6 f3 h7 g4 a7 f2 d6 b3 d5 f4 d7 b4 Ke6 g3 Kf7 b2 d6 g2 Nf3 g1R Nc3 Qf6+ Ke8 Rg7 d8B Nh6 d7 Ng4 Nh4 f3 Na4 Qc3 Rg1 Nc6 Bf4 Nce5 Qd6 Kb3 e4 c4 Bh3 f1Q Qa6 f2 Ng6 Qfd3 Bg3 Nf3 e5 f1R e6 Nf2 Rd1 Qe4 Rd5 Ka2 Rb5 Rd1 Re1 Ng1 Bg2 Qh4 Bc6 Qe4 Re3 Qed4 Rf3 Bd6+ Rf8 Qh4 e7 Bb8 Rg8 Rd6 Rf8 Rf6 Nc5+ Qa3 Rg8 c3 Nb3 c2 Na1 c1R Rf8 Qc4 Rg8 Bd6 Rf8 Rd1 Rg8 Rb8 a8Q Rb6 Rf8 Rhg8 h8B Bb8 Be4 Rbc6 Bc2 Rcd6 Ba4 Qac3 Ba5 R6d3 d8R Be6 Rd6 Rh7 Bd8 Rgg7 Rf7 Rh6 Rd7 Qc1 Rd4 Ra3 Rd6 Q1c3 Nf4 Rgg6 Rh7 Rg7 Ng6
1QnqQQ2/1B1QPP2/2BrRBk1/b3Nb2/p1K1p2r/b2n1R2/Nb6/1b4q1 b - - 0 1 illegal: No proof kernel
Q1B5/KQ2pr2/1P2k3/Qp3RqN/BBbnP1bn/r2NBR2/2r4r/1q3r2 b - - 0 1 illegal: No possible last move, all moves rejected
4N1q1/B1KPQ1n1/p3q2P/1RN2Qq1/r1k3B1/RRbqrp2/n2q4/B2B1b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 d4 c5 h4 f5 e4 g5 b6 f3 Ke3 c4 b7 f2 h5 g3 e5+ Kd7 d6 Ke6 b5 Kd5 d7 a6 h6 g2 e6 g4 Kf4 c3 e7 c2 e8B g3 b6 Bb4 Bb2 c1Q+ Nd2 Qe7 d8Q+ Nd7 b8B Qc3 b7 Nf6 Qh5 Qe6 Be2 f1Q+ Ngf3 g1Q Ne4 g2 Nc5 Rg8 Ra3 Ne4 Bd1 Kc4 d5 Qfd3 d6 Ndf6 Bd7 Ne8 Nh2 Ng7 Ng4 Ba5 Rh3 Qcd2+ Re3 Nc3 Ba7 Na2 b8R Bc3 Rb5 Re8 Qdg5 Rb8 Qe7 Bb7 Ba1 Ba8 Rb1 Rb4 Nf6 Ra4 Rb5 Bf3 Qh3 Be2 Bc8 Bf1 Bd7 Rf8 Ne8 Rf6 Rab3 Rg6 Qf3 Rg3 Bc8 Qh1 Qg4 g1Q Ra3 Qg8 Be6+ Qhd5 d7 Rh3 Ne4 Bf6 Ng3 Q3e2 Ne4 Rg3 Nc5 Be5+ Kg5+ f4 Reb3 Bc3+ Kg6 Re3 Qgg5 Re5 Kf6 f3 Qg6 Qge3 Bg4 Q5d3 Qf5 Re4+ Qee5 Qf4 Ke7 Qee1 Kd8 Qg5+ Qe7 Qee3 Ne6 Qb6+ Kc8 Re3 Nc5 Qbe6 Kc7
2N4R/nP2r1R1/5b1n/4p1Nk/pqB1N2N/1Rnr1Q1n/q1P1b3/1nK2QB1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 g4 h5 b4 d5 f4 e5 f6 Kg6 g5 a5 b6 a4 b5 d3 b7 h3 f7 h4 b6 h2 Na3 h3 Bg2 d4 Nf3 Nh6 f5+ Kh5 g6 Qd6 f6 Be7 f8N Ra7 g7 Nc6 b8R Ba6 f7 Bf6 g8N Re7 Qf1 Na7 Nb5 Qb4+ Nc3 Bc4 Rg1 h1Q b7 h2 Ng6 Bb5 Kd1 d2 Ng5 Ba6 Bh3 Qd5 f8Q h1N Rb1 Qa2 Be6 Bb5 Bc4 Nf2+ Ke2 d1N Kd2 d3 Rb3 Ba6 Nh4 Nh3 Ba3 Rhh7 Kc1 Rhg7 Nce4 Nc3 Bb2 Nb1 Bd4 Rd7 Ne7 d2+ Kd1 Rd5 Nc8 Re7 Bb6 Rd3 Rg4 Bg7 Q8f3 Bf6 Bg1 Rd6 Ke2 d1N Ra8 Ndc3+ Ke1 Nd5+ Kd1 Ndc3+ Kc1 Rd3 Nb6 Nd2 Rh8 Ndb1 Nc8 Bb5 Nh7 Bd7 Rg7+ Bg4 Qe3 Bf3 Nhg5 Be2 Qef3+
4BN2/NPR3pn/Bqq5/Q2bbq1q/5P2/KpB1R2k/Q7/nBQr1rq1 b - - 0 1 illegal: No proof kernel
1n1b2n1/np1r1q1P/1R2p3/nBB1QrQN/1P1RB1Q1/qN2b2Q/3n4/3k3K b - - 0 1 illegal: No proof kernel
b1KQqR1B/P3B3/2p1k2R/4bB2/N6N/nr1qBp1n/P2r3q/Q1q3Nq b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 b5 Ke4 h5 Ke5 f5 d4 b4 e4 b3 g4 f3 d6+ Kf7 d5 c6 a6 b2 a7 f2 d7 f4 d6 h3 g5 h2 Nc3 b1Q Bd3 f1Q Na4 h4 Be3 h3 Bc2 Nh6 g6+ Kg8 Ke6 f3 g7 Qc1 e5 Nf7 Rb1 Na6 Bg6 Qd3 Rb8 Nb4 Qf1 Bb7 Qe1 Qg5 d8B Qh5 Kd7 Nc2 e6 Na3 e7 Ng5 e8N Rh7 Rc8 Rb8 Bf6 Ba8 Kc7 Rb1 d7 Rb3 d8B Bd6+ Kd7 Bf4+ Nd6 Be5 Rb8 Rh8 Kc8 Rh7 Nf5 Rh8 Bh7+ Kf7 Nh4 Ke6 g8Q+ Qf7 Qf8 Qe8 Bg6 Rh7 Bh8 Rd7 Qc3 Rd6 Qa1 Rd7 Rb7 Rd5 Rh7 Rd4 Rh6 Rd5 Ne2 Rd4 Rd1 h1Q Ng1 h2 Rd2 Nh3 Re2 Qf7 Be7 Rd6 Qd8 Qe8 Rd2 Qg2 Rb2 h1Q Re2 Qgh2 Rb2 Rb5 Rb4 Rd7 Rf4 Rb2 Rf8 Rd2 Qb2 Rb7 Qa1 Rb3 Bf5#
b1B5/1Q2rn2/2NQNrq1/R3q3/1NR4K/n3BpQ1/p1Pr1rPb/1N4nk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 b4 Kd6 e4 Ke5 g6 h5 g7 f5 b6 d5 b7 a5 b5 h4 b6 h3 Bb2 a4 Ba6 f3 Kg3 a3 Qd2 f4+ Kh2 a2 Na3 f2 Bc1 f1R Nb5 f3 Kg3 d3 Qe2 h2 Na7 d4 Ba3 d2 Nh3 d1Q Bc4 d3 Qd2 Qe8 Nf4 Rh7 Nb5 Nh6 g8Q Ra6 Kh4 Nc6 b8Q+ Bd6 b7 Qe1+ Qg3 Nd4 Rd1 Re7 Be6 Nf7 Bc5 Rf2 Na3 Nb5 Nb1 Na3 Be3 Rb6 Qb4 d2 Qa7 Ra6 b8N Bb7 Bc8 Ba8 Qab7 Qe2 Rde1 d1R Q4b6 Rd2 Ne6+ Kf6 e5+ Kf5 Nc6 Ke4 Rhf1 h1N Rd1 Qg8 Rfe1 Qg6 Qc5 Bb8 Qd6 Qb5 Nf4 Bc7 e6 Qe5 Nd5 Bb8 Ndb4 Rb6 Qh2 Ng3 Qh3 Ne2 Qg3 Ng1 Re2 Rc7 e7 Ra6 e8N Re7 Ng7 Rb6 Ne6 Ra6 Bb6+ Kf5 Re3 Bc7 Rc3 Ke4 Rc5 Ke3 Rc4+ Ke2 Nd3 Bb8 Ne1 Kf1 Be3 Ra4 Nf8 Qb5 Qde5 Ne2 Ne6 Kg1 Qgg5 Rd8 Rg4 Rf4 Rd5 Rf6 Nd3 Kh1 Ndb4 Ng1 Rc4 Bc7 Qd4 Bh2 Qg3 Rdd7 Rf5 Rd6 Qc5 Rdd2 Qd4 Qa5 Re5 Qc7 Ra5 Qe5 Qd6
2R5/b2qQ1qR/k2q2nN/1Bn2QNR/2r2p1B/2Pp4/Pqbr4/3BKRr1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 e4 f5 h4 d5 h6 Kd7 h5 Kc7 c3 Kb6 e6 g5 h7 d3 e7 d2+ Kf2 d4 e8Q g4 e5 f4 e6 b3 e7 b2 h6 g3+ Ke2 g2 Qc2 d1Q+ Kf2 Nd7 Bc4 Nc5 Ba6 Bf5 Nf3 g1R Ne5 Qd7 Bb5 Ra4 Rh5 Rc4 Nd2 b1Q Ne4 Qb2 Ng5 Ka5 Ba4 b5 Nef7 b4 Bd2 b3 Be1 Ka6 Qd8 Qd3 e8B Ne7 Rd1 Ng6 Qe7 Rg8 h8R Qd6 h7 Qh3 Qd2 Bc2 Nh6 Qhd7 Qd3 Rg2+ Kf1 Rd2 Qf5 d3 Bh4 Bg7 Ke1 Bd4 Qef6 Qg7 Qe7 Qd7 Ra1 Qa3 Rd1 b2 Bb3 b1Q Rc1 Qd8 Bd7 Qbb2 Bb5+ Kb6 Rb1 Qd6 Ra1 Qa7 B3a4 Qad7 Rd1 Rb8 Rc8 Kb7 h8R Bg1 Rc6 Rg8 Rh7 Be3 Rc8 Bd4 Bc6+ Ka6 Bf3 Nb3 Rc1 Ba7 Bd1 Nc5 Bb5+ Kb7 Be2 Ne5 Nh3 Qh8 Kf2 Rg1 Rf1 Qg7 Ke1 Ng6 Bd1 Kb6 Ng5 Ka5 Ba4 Ka6 Bb5+
b1RN3k/2N1n3/2q2b2/1b5R/2nQP3/QB1pB2R/rP1brpKN/n1R1q3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 c4 d5 e4 a5 h4 f5 b6 Kf7 h6 g4 c5 f3 h7 Kg7 c6 f4 c7 g3+ Ke1 d3 b7 d4 h5 a4 Nh3 a3 Bd2 a2 Be3 g2 Kf2 g1B+ Ke1 Ne7 Na3 Nd7 b8Q Qe8 Nf2 Nb6 Rh3 Bb7 c8R Nc4 Nb5 Qc6 Rc1 a1N Qd6 Ra2 Nc7 Ba8 Ng4 Rg8 Be2 d2+ Kf1 f2 Nh2 Kh8 Qa3 Bg7 Kg2 Bf6+ Bg4 Rf8 Be6 d3 Qda4 d1B Qa7 Bb3 Qd4 Ba4 Bf7 Bb5 Bd5 Kg7 h8N Kh7 h6 f1Q+ Kh1 f3 Nf7 Kg8 Nd8+ Kh8 h7 Qe1 Bh6 Rg8 Be6 Rg2 Bd5 Re2 Be6 Nb6 Bb3 f2 Kg2 Nc4 Nf1 Bh2 Rh5 Bhe5 Nh2 Bf4 Rh3 Ne5 Bg5 Kg7 h8R Bd2 R8h5 Nc4 Bh6+ Kh8 Be3+
1Q2R3/R2n3b/q1Rk4/2N2B1b/q2P1q1p/1n1P2BK/r1bb2pQ/2r1NNN1 b - - 0 1 illegal: No proof kernel
5QQ1/K1bN2B1/2R3nb/kB1b1rb1/1NpB1r1n/1PQ3qB/p1P4r/2R3q1 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 g4 hxg4 d4 e5 dxe5 fxe4 Kd2 g5 Ke3 d5 Kd4 Kd7 f4 c5+ Kc3 Kc7 h4 Kb6 f5 a5 h5 e3 h6 g3 f6 a4 f7 a3 h7 g4 b3 e2 e6 e1B+ Kd3 d4 Kc4 g2 e7 d3 e8B g3 Bd7 a2 Rh6+ Ka5 b6 d2 b7 Ne7 Ba4 Nbc6 b8Q Be6+ Kc3 c4 Qf3 Qc7 Bb2 Ng6 Bb5 Nce5 Kd4 Bd5 Nc3 Nh4 Rc6 Bh6 Kc5 d1R f8Q Neg6 Rc1 Rd4 Qe3 Qg7 Nf3 g1Q Ne5 g2 Nd7 Bg3 Qg8 Ra7 Qbf8 Bc7 Qe5 Rf4+ Qd4 Be4 Nd5 Ra6 Nb4 Bd5 Qe3 Qc3 Qd4 Qg3 Qe3 Ra8 Bd4 Re8 Qc3 Re5 Qe7 Ref5 Qef8 Qh1 Bg7 g1B+ Bd4 Be3 Bh3 Qd1 Qe6 Rg8 h8B Qdg1 Bg7 Rh8 Qeg8 Rf1 Ba6 Beg5 Bb5 R1f4 Rf6 Bf7+ Kc6 Rh7 Kb7 Bd5+ Ka7 Nf3 Bh8 Bg7 Bf1 Rh2 Bh3 B7h6 Rc6 Nfh4 Bg7
3Q4/n5R1/1q1N1Q2/r2bbr1P/Q2B2kN/nbP1p1p1/BQ2K1R1/1R2b1rq b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 f4 Kf6 b4 g5 b6 d5 b5 a5 b7 e5 b6 g3 h5 e4 Bg2 a4 Rh2 d3 Nf3 d4 Rh1 d2+ Kf1 d3 Nd4 e3 Bd5 a3 Bb2 g4 Rh4 a2 Rh2 Be6 Nc3 Ne7 Rb1 a1B Ba2 Ng6 Rg2 Nc6 b8Q Bd5 b7 Ra5 Ncb5 Nge5 Nf3 Na7 Bd4 Bb4 Nd6 Rf8 Nh4 Qb6 Qa8 Rf7 b8Q Rf8 Qc1 d1B Qb2 Be1 Qe8 d2 Qa4 Bb3 Q8c6 Bf3 Qd7 d1Q Qd8+ Kg7 f6+ Kh6 f5 Nc4 f7 Na3 f6 Kg5 Nhf5 Bfd5 Nh4 Re8 f8Q Re5 f7+ Kf4 Qf6+ Rf5 Q8d8 Qc1 Rd2 g2+ Ke2 g1R f8R g3 Rg8 Qd1+ Kd3 Qf3 Rg7 Qh1 Rg2 Qh2 Ke2 Qh1 Qc1 Bac3 Rd7 Kg4 Qb2 Bb4 c3 Bc5 Nb5 Bd6 Re7 Bf4 Nd6 Be5 Rg7+
R1B4b/2k1Nb1b/1rqn4/rN2BBp1/q1pn2K1/1B2PPQ1/2R1Q2r/2N3b1 b - - 0 1 illegal: No proof kernel
R4B1q/BB1rBN2/n2r3q/3npbr1/P1Q1Q3/Kb1Nb1P1/5p2/bN3kR1 b - - 0 1 illegal: No proof kernel
2Q1Q1B1/2RR2nN/8/3Pr1nB/KQb2B2/1N1bb1p1/1p3rP1/Qqn1qk1b b - - 0 1 legal: proof: e4 d5 h4 a5 c4 f5 cxd5 Qd6 b4 axb4 exf5 Qg3 Rh3 Qxh4 Rh1 Qh2 a4 Kf7 f4 Kf6 d4 c5 Kd2 e5 Kc2 b5 Kb3 g5 d6 h5 a5 h4 d5 e4 a6 c4+ Kb2 c3+ Kb3 e3 d7 g4 d8Q+ Ne7 a7 e2 Ra4 e1Q Qe8 c2 Ra1 g3 Ra3 h3 Qd8 Bh6 Qg4 Re8 Nf3 Nd7 Bd3 Nf8 Ng5 Ne6 Nd2 Ba6 Qd1 Qhg1 Qc8 h2 Ra2 Rb8 a8B Qgf1 Rg1 h1B Bc6 Rf8 Be8 Rb6 Nh3 Ng5 Bh5 Re6 Ra3 Re5 Be4 Bb7 Ra7 Ba6 Rd7 Rf7 Bb2 Rf8 Qa1 Rf7 Bc1 Qd3+ Ka2 b3+ Ka3 b4+ Ka4 b2 Nb3 b1B Be3 c1N Bd2 Ne6 Ng5 Bc4 Qe8 Qdf1 Be3 Bbd3 Nh7+ Kg7 Bd2 Bg5 f6+ Kh6 f5 Be3 Qc8 Rf8 f7 Ng5 f6 Nf5 Qe8 Ng7 Bf5 Na2 Be6 Nc1 Na5 b3 Qc8 b2 Nb3 Re8 f8Q Re7 Bg8 Rf7 Qb4 Rf8 Bf3 Kg6 f7 Kf5 Bh5 Ke4 Qb5 Qd1 Qb4 Qfe1 Rf1 Qc2 Rf6 Qb1 Rc6 Bb6 Bc3 Ke3 Rcc7 Kf2 Bd2 Kf1 Bf4 Be3 Qe8 Rf5 Qc8 Re8 f8Q Ree5 Qf7 Re7 Be5 Rf2 Bf4 Re5 Qfe8
1r4Bq/1BnQ3R/r2Qr1Rb/QbPn4/3N2p1/1Kb1pb1P/1B2Q1k1/N3q3 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 Kf7 Kc3 Kg6 f4 Kf5 b4 g5 c6 e5 c7 a5 h3 d5 b6 e3 b7 Ke4 f5 a4 b5 a3 b6 g3 f6 g2 f7 d4+ Kc4 d3 Qe2 a2 Na3 d2 Kb3 d1B Bb2 Nf6 Nf3 g1R Nd4 Bh6 f8Q Nd5 Qf7 Na6 b8Q Bd7 c8B Bb5 b7 Nac7 Qd7 Ra6 Qa8 g4 b8Q Kf4 Bb7 Kg3 Rc1 Re6 Qa5 a1B Bg2 Re1 Rf1 e4 Rf6 Ra6 Rg6 Qf6 Qf8 Rg8 Qc5 Rb8 Qcb6 Qh8 Qbd6+ Nf4 Rb1 Kh2 Bd5 Kg1 Bg8 Nfd5 Qc4 Bf3 Qe2 Nb4 c4 Nbd5 Qdb6 Kh2 c5 Kg1 Nac2 Kh2 Bc1 Bc3 Na1 Kg3 Bb2 Kh2 Qf1 e2 Qf6 e3 Bh1 Rd1 Qfe7 e1Q Qe2+ Kg1 Qed6 Rd2 Ndc2 Rd4 Rd1 Re4 Nd4 Re6 Rd3 Nb6 Rd2 Ba8 Bb7 Nbd5 Qc4 Kh1 Rf2 Kg1 Rf7 Kg2 Qe2+ Kg1 Qe5 Nb4 Bc8 Bf3 Bb7 Nbd5 Qed6 Kh1 Rh7 Kg1 Qd3 Kg2 Qe2+
3qrbrn/1K5B/N2rb2n/1PQ3p1/3bR3/pRPBN1R1/k1Q1bq2/4B1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 b6 Ke7 Kd2 Ke6 Kd3 Kd5 e4+ Kc5 b4+ Kb5 h4 a5 e6 f5 e7 g5 e8B g3 b7 f4 h5 g2 e5 f3 Ke4+ d3 Kd5 a4 h6 a3 e6 Ka4 e7 d2 h7 f2 b5 d6 Rh3 Nd7 Kc6 d5 b8B d4 Bg3 d3 Ne2 g1B Nd4 Ra7 c3+ Ka5 Ne6 Bg7 Nc7 Nh6 Qc2 d1B Bg6 d2 e8R Nf8 Re4 Rg8 h8Q Be6 Bh7 Ng6 Na6 Bf8 Qd4 Re7 Qc5 Re8 Kb7 Nh8 Bc4 f1Q Be1 Be3 Rg3 Be2 Ra2 d1R Rb2 Rd6 Bd3 Qg2 Nd2 Bd4 Nf1 Qg1 Be3 Qh2 Qd2 Ka4 Bg1 Qg2 Ne3 Qf2 Ra2 Kb3 Ra1 Bf6 Qc1 Bd4 Rb1+ Ka2 Rb3 Qf4 Qd1 Qf2 Qc2+
2R2bBr/1Bnn4/1b1Q1Rq1/1p4Nk/2bNPQq1/1RP5/4prBb/BKn5 b - - 0 1 illegal: No proof kernel
1N3bN1/4q2N/nKb3RQ/nppkr1N1/3r4/2qQB1q1/qb2P1P1/5RRB b - - 0 1 illegal: Other
b2r3R/6nb/B1B2Q2/pQ1P1kB1/1PKb1rq1/2N2Q1q/BRb2p1q/n2N4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 Ke7 e4 Kf6 Ke2 c5 Kd3 a5 g4 h5 b6 h3 b7 h4 d6 f3 d7 f2 Kc4 h2 d4 h3 Qe1 Rh4 Qe2 Bg7 Bd2 Qc7 d8Q+ Ne7 Bh6 Bf5 Qc8 Na6 b8Q Bh7 Qbb7 Nf5 Kb5 c4 Be3 c3 Qf8 c2 Ra3 c1Q Qf3 Rd8 Ne2 Qd1 Rb3 Nc5 Rb2 Nb3 Nec3 Na1 e5+ Kg6 g5 Rf4 Bd3 f1B e6 f6 Bc4 Bd3 e7 Bc2 Bd3 Qg1 Nd1 Qg4 Nbc3 Bh8 Bf1 Ng7 e8B+ Kf5 g6 Qb8 Kc4 Qd6 Rg1 h1B Bc6 h2 Qb5+ Qe5 Be2 Bg2 Bd2 h1Q Bc1 Qhh3 Rh1 Nh5 Rh2 Bh1 g7 Bg2 g8B Ng7 Bgd5 Bh1 Bf1 Qe2+ Qd3+ Be4 Rh1 Qeh2 Qf3 Kg5 Rb3 f5 Bf7 Q2g2 Qd6 Bg6 Qe2 Qe3 Qbe5 Rf2 Kc5 Nh5 Ba4 Ba8 Bc6 Qg1 Rh3 Qh2 Rb2 Rf3 Qg3 f4 Ba2 Kf5 Qe7 Qd3 d5 Be5 Qgg2 Ng7 Rh8 Bh7 Qg3 Rf2 Bd2 f3 Bg5 Qhh3 Qg2 Qd2 Qa6 Bf6 Qab7 Be5 Ba6 Bd4+ Kc4 Rf1 Qg3 Qdh2 Qb6 Re1 Qbb8 f2 Qb5 Re4 Qf3+ Rf4 Qf6+
1bQnN1B1/B6r/bQ1bq1PP/KB2RN2/1r2r2p/8/2rkN2p/2RB1q1n b - - 0 1 illegal: No proof kernel
2b1N1QR/q1R2q2/1N1b2pq/1q2B1N1/B2r2R1/b4rP1/1R1kp1PQ/1n4Kn b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 Nh3 fxe4 Ng1 b5 axb5 Qc7 Qg4 Na6 Qd1 Qg3 hxg3 Nb8 c4 Kf7 b4 Kg6 f4 Kf5 Kf2 h5 b6 d5 b5 a5 c5 e5 b7 d3 b6 g6 c6 h4 c7 h3 Qb3 h2 Qc4 e3+ Ke1 d2+ Ke2 d4 Qa4 Ke4 f5 Nh6 f6 Na6 b8N Bd6 b7 Nc5 f7 Rd8 f8Q Ng4 Qae8 a4 Qf6 a3 Qee6 a2 Qff7 Nb3 Nh3 Ra3 Qfd7 Nf2 Rg1 h1Q Nf4 Qh6 Na6 Nh1 Qh7 Rd7 b8R Rd8 Nd5 Rd7 Kd1 e2+ Kc2 e1Q Qeg8 Qf2 Kd1 Qf7 Nb6 Ke3 Bb2 e4 Nc3 Rd8 Rb1 a1B Bb5 Rd7 Bc6 Kd3 Rf1 e3 Rf4 Rd8 Bc1 Bb2 Ne4 Rd7 Ng5 Kc3 Ke2 d3+ Kf1 e2+ Kg1 d1Q+ Rf1 Nd2 Ba4 Qdb3 Rf4 Qb5 Rg4 Rb3 Ra8 Bba3 Rb2 Nb1 Bf4 d2 Be5+ Kd3 Nc5+ Ke3 Nce4 Rd3 Nf6 Rd4 Rh4 Re7 Ne8 d1Q+ Kh2 Qdb3 Kg1 Qa2 Rg4 Re6 Qhh8 Rf6 Ra7 Rf3 Qhh7 Bf5 c8R Kd3 Raa8 Qa7 Rc7 Qf7 Rd8 Bc8 Qhh8 Qhg7 Qh2 Qh6 Nf6 Ke3 Rf8 Kd3 Ne8 Ke3 Qh7 Kd3 Rh8 Ke3 Qg8 Kd3 Rb3+ Kd2 Rb2+
n4kbN/K1Bn2N1/n3nP1b/6r1/2b2qPr/1p3R2/B1R3pQ/QRNq1N2 b - - 0 1 illegal: No proof kernel
B6r/2b1Q1RB/b1Nb1P2/3b4/p1nRR1K1/r3B2P/n1q2p1R/k2QqN1q b - - 0 1 illegal: No proof kernel
3r1bbB/3Rq3/Rn2PBQ1/2q1Rp2/2Q4K/nNqpN1r1/3P1nN1/k2N3n b - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 g4 exf4 gxh5 c6 b4 Qb6 Bg2 Qd4 b6 Rh7 b7 Qe5 b5 Qc7 b6 Rh8 Be4 Qd8 Bd3 Rh6 Bc4 Rh8 Bb5 cxb5 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 Kb4 c5 a5 e5 g5 h6 d5 h5 f5 c6 a4 c7 a3 h7 a2 h6 f3 Kg3 f2 Qe2 Kb3 Kh3 f1N Nc3 d4 Nd1 b4 Bb2 Ng3 Nf3 Nd7 b8Q Ra3 b7 Ngf6 Nh4 Nb6 Re1 Ng4 Ng2 Be6 c8N Qe7 Qd6 Nh1 b8N Bg8 Qg6 Kc2+ Bc3 b3 e6 b2 Nd7 b1N Nc5 Rb3 Qc4 Na3 Nd6 Ngf2+ Kh2 g4 Re5 Rb4 Nb3 d3 Qb5 Rd4 Nc4 Rd8 Qc5 Bf7 Qc8 Rg8 h8B Rg7 h7 Bg8 Rb1 a1Q Bb2 Qa2 Ra1 Qb1 Ra2 Qc1 Nce3+ Kb1 Qc4 Qc3 Ba1 Nc2 Ra6 Na3 Qe8 Rg5 Qg6 Ka2 Bf6 Kb1 h8R g3+ Kg1 Ka2 Rh4 Kb1 Rd4 Ka2 Rd7 Rg4 Nf4 g2 Kh2 Rg3 Bh8 Qc2 Rc5 Kb1 Baf6 Qc3 Re5 Ne4 Nf1 Re3 Qg3 g1Q+ Kh3 Rf3 Ng2 Qgc5 Nfe3 Nef2+ Kh4 Ka2 Qh3 Rg3 Qhg4 Kb1 Qg6 Ka2 Na5+ Ka1 Nb3+
2qk1B2/Rqrb3N/NB2p1Nn/4K3/qP1n2B1/5qB1/rP2pbQ1/Q1r2R2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a3 d5 cxd5 b4 axb4 g5 Qg4 gxh4 Qe2 Na6 Qd1 Nb8 Ke2 h5 Ke3 c5 Kf4 a5 d4 a4 g4 a3 g5 c4 g6 e3 g7 a2 d6 c3 d5 e2 d7+ Kf7 d6 c2 Na3 h3 Ke5 e6 f4 h2 f5 h4 f6 h3 Nc4 Rh7 Nf3 Bb7 Bf4 c1R Bg3 Qe8 d8B Nh6 d7 Bc8 Bb6 Bc5 Qa4 Bf2 d8N+ Kg8 Nb7 Kf7 Qa3 Bd7 Nc5 Qc8 Ng5+ Ke8 f7+ Ke7 Rg1 h1Q g8Q h2 Bh3 Qhb7 Na6 h1Q Bg4 Qhf3 f8B+ Ke8 Rf1 Nc6+ Kd6 Rf7 Nh7 Nd4 Ne5 Rg7 Ng6 Re7 Rb1 a1Q Ke5 Qa2 Ra1 Qab3 Nc7+ Kd8 Qa2 Qa4 Qb1 Be8 Na6+ Rec7 Ra2 Bd7 Qa1 Ra7 Qf7 Qd3 Qf3 Qc3 Qg2 Qcf3 Ra3 Qa5+ Nc5 Qb5 Re3 Ra2 Ra3 Q5c6 Ra7 Qa4 Na6
1rkN1R1R/RB2n1q1/3Pb3/N3q3/3Q2nB/P1bKQp1r/1R5p/1N1b1r1b b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 e4 Kd7 Ke2 f5 d4 h5 g4 b5 d6 c5 d5 b3 a3 b2 g6 h4 g5 b4 e5 f3+ Kd3 f2 g7 f4 g6 b3 Kd2 c4 Qf3 h3 Qe4 h2 Qd4 c3+ Kd3 c2 Ra2 Qa5 Nf3 Nc6 Rg1 Nh6 g8R Ne7 g7 Ng4 Nfd2 Rb8 Bg2 f1R Nc4 Rh3+ Bf3 Kd8 Rh8 Be6 g8R Kc8 Be3 c1Q Bf2 Qae1 Na5 Qc7 Bh4 Qg3 Rg2 Qd7 Re2 Qe8 Re4 Bg7 Rf8 Bf6 Qe3 Bg7 Ra4 Qg1 Qd4 Qg2 Nc3 b1B+ Rc2 b2 d7+ Kc7 d8N Kc8 d6 Bba2 Rh6 Bab3 Rhh8 Bf6 Re2 b1B+ Rc2 B1a2 Rb2 Bd1 Nb1 Bed5 e6 Bc6 Qb6 Bc3 Qd4 Qh5 Rh7 Qe5 Rhh8 Nf5 e7 Be6 e8Q Ne7 Nab7 Qg3 Ra7 Qg7 Na5 Qe1 Qg6 Qee5 Qge4 Ba8 Qee3 Bb7 Be2 Bg2 Bf3 Bh1 Bc6 f3 Bb7+
2R1r1Nk/q1RnR3/1B1P2K1/p2Pq2Q/rQ1p3R/1b2B3/q1rbn3/5BNq b - - 0 1 illegal: No proof kernel
3B1b2/b3r3/2Np1p2/1K4Rk/1N2Nb1n/Q2P1bRP/Qr1r1Q2/nBq1q2N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 e4 a5 Ke2 g5 Kd3 d6 Kc4 f3 e5 a4 c6 a3 b6 g3 h3 g4 b7 g2 e6 f2 e7 g3 c7 a2 Ne2 g1R Qe1 g2 Ng3 Qd7 Na3 Rh5 Bd3 f1Q Qf2 Nc6 b8N Nb4 Nc6 Rh7 Kb5 Nh6 c4 Nf5 c5 Bb7 Nc2 Rb8 c8Q+ Qd8 Rh2 Nh4 Nh1 Qe1 Qe6 Qc7 Rb1 a1B Qa2 Bag7 Rb3 Bh6 Be4 Rf1 Rg3 g1B Rhg2 Bf4 Rg5 Rg7 R2g3 Qc8 Bb2 Rh7 Bf6 Rg7 N2d4 Nc2 Nb4 Na1 Bb1 Rh7 d3 Bf3+ Kc4 Rb5 c6 Rg7 c7 Rh7 Nbc6 Rb2 Nb4 Rd2 Ndc6 Rb2 Qd4 Rff2 Kb5 Rfd2 Qc3 Ba7 Qca3 Qd8 c8Q Rg7 Qb8 Qc8 Qb6 Qc7 Ne5 Qcc1 Nc6 Rh7 Qf2 Rg7 Bd4 Rh7 Bb6 f6 Bd8 Kd7 e8N Re7 Rd5 Ke6 Ng7+ Kf7 Ne6 Nb3 Rc5 Na1 Ng5+ Kg6 Rf5 Kh5 Ne4+ Bg5 Rf4 Bgh6 Rfg4 Bf4 Rg5+
3r2RR/qnrQQ3/Q1P1r2B/2r5/1K3n1Q/4q1NN/bkB1ppRP/b2b4 b - - 0 1 illegal: No proof kernel
N1Nkb1KQ/1R1r1rB1/1NPnp3/3N3B/1PBb3p/3n2r1/1q1r1Q2/1q3b1R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 a5 Kd3 d5 g4 h5 f4 a4 c4 e6 b4 a3 b6 a2 f6 h3 f7+ Ke7 b7 h2 f5 h4 g5 Qc7 c5 Nd7 b8Q Ngf6 c6 Ra6 g6 Nb6 g7 Rh6 g8B Bd7 Na3 Rg6 Ne2 Ra8 Nc3 Ne8 Nab5 Qe5 Na7 Rg3+ Qf3 Nd6 Bb2 Nbc4 Nc8+ Kd8 f6 Bg7 f8N Be8 f7 Ra7 Nd7 Bf6 Rd1 a1Q f8N Rc7 Ndb6 Rf7 Na8 Qf5+ Ke2 Ne5 Nd7 d3+ Ke3 d2 Kd4 Qfb1 Ndb6 Bg7 Kc5 d4 Ncd5 d3 Qf2 Qa3 Bd4 Qab2 Bh7 Bh8 Bg6 Bf6 Be2 Bg7 Rdg1 d1R Bgh5 d2 Bc4 Bh8 Re1 Bf6 Re3 Bg7 Ra3 Bh8 Ra7 Bg7 Rg1 h1B Rb7 Bg2 Rh1 Bf1 Bc3 Re1 Bd4 d1R Bc3 Re2 Bd4 Ng6 Be5 Nf4 Bc3 Bh8 Bg7 Nb5 Qe5 Red2 Qed4 Nd6 Qc3 Bd3 Kd4 Bf1+ Ke5 Re7 Kf6 Nd3 Bg4 Rf7+ Kg6 Bh3 Kh7 Bg2 Kg8 Bf1 Bf8 Bd4 Bg7 Re1 Bh5 Rd7 Nf6 Re4 Nfd5 Rf4 Qe2 Rff7 Qf2 Bc5 Qe5 Bd4 Qef6+ Rfe7 Qh6 Rf7 Qh8
2n4R/2Qb2n1/KBpb1q1p/1P3Pn1/1R2QB2/2kN2qQ/4b1Nr/b1r1Q2B b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 b4 Kf6 f4 e5 g4 a5 d4 h3 d6 h2 b6 e3 Kd3 a4 Kc4 a3 Kb5 e4 g5+ Ke6 d5+ Kf5 g6 a2 b7 e2 d7 e1N d6 e3 g7 Ke4 f5 e2 Bg2+ Ke5 Nf3+ Ke4 Bf4 Ne7 g8Q Na6 b8Q Nc5 Na3 Ne6 Ne5+ Nf3 Qe1 Kd4 Qg4 Ng7 Rb1 a1B Nd3 Ng5 Nc4 Ra3 Bd5 Rc3 Qh3 Rc1 Qa8 Ba6+ Ka5 Nc8 Ne3 Qf6 d8B c6 d7 Bd6 Ng2 Bc4 Bf3 Be6 Bb6+ Kc4 d8Q Bd7 Qg1 e1Q Ka6 Qf2 b5 Kc3 Qc7 Qg3 Qf2 Rg8 Rb4 Rh8 Re1 h1B Re8 h6 Rd8 Rg8 Qe3 Re8 Qe4 Re5 Rh8 Rd5 Nf2 Rd2 Nd3 Rdc2 Nge1 Rh2 Ng2 Na7 Qae8 Nc8 Nh4 Bg2 Q8e7 Bf1 Bh1 Be2 Ng2 Qd4 Qe3 Qf6 Q7e4 Qf8 Qf2 Qf6 Qe1+
3R1N1b/1n1Qb1q1/1Pq2pB1/1Bn1B3/b1rB2K1/N2Q4/NkRPpr2/3nn3 b - - 0 1 illegal: No proof kernel
B4n1B/2k4N/Kp1Rrb1q/R1b4R/Q4qPQ/2q1n1R1/qP1N2p1/2r1b1B1 b - - 0 1 illegal: No proof kernel
Nk2B1r1/Rb4N1/rpQ4r/BKnpn3/1PN1q1B1/1b1P1b1B/1b2q1Q1/7R b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a3 b6 a4 Na6 a5 Nb8 axb6 cxb6 Ke2 e5 Kd3 h5 Kc4 a5 g4 d5+ Kb5 Kd7 f4 Kc7 c4 e4 g5 a4 f6 e3 d3 h3 g6 e2 f7 e1Q f5 h4 c5 a3 g7 a2 f6 h2 c6 h3 Qc2 Nd7 Qg2 Rh7 Ne2 Ra4 Nec3 Rg4 Na3 Qe4 Bd2 Kb8 Nc4 Nh6 g8B Ba3 f8Q Nc5 f7 Bb7 Qe8 Rg5 f8N Ng4 b3 Rh6 Bf7 Ne5 Ne6 Rg8 Ng7 Bb2 Qd7 Qf6 Be8 Qff3 Qe6 Qfe2 c7+ Ka8 c8B Kb8 Re1 a1R Qc6 Ra6 Ra1 Qe1 Be2 Qf2 Beg4 Qfe2 Rhb1 h1B Ra2 Ra8 Ra7 h2 Bh3 Nf7 Bcg4 Ne5 Qf2 Bf3 Rh1 Qf1 Qg2 Bd1 Kb4 Qf2 Nb5 Qfe2 Nc7 Bc2 Kb5 Bd1 Ra1 Ra6 Na8 Bc2 Ba5 Bd1 Rf1 h1B b4 Bb3 Rf7 Bc8 Ra7 Bb7 Qf1 Bf3 Qg2 Ne6 Rg1 Nc5 Rh1
4R3/1n2R3/Prb2qQp/p3b1Q1/1nr1P1q1/NK1Q1n1R/2n1N3/k1B2BrQ b - - 0 1 illegal: No proof kernel
1n2bn1R/2QQ1k2/P1p1p3/Q1r4n/3qNqrn/8/NBQ1BP2/K1Rb1Bb1 b - - 0 1 illegal: No possible last move, all moves rejected
1rNrbqrq/1nB2N2/pQ5q/r1RR2pB/b1Q2P2/K7/P4k1B/Q1n3B1 b - - 0 1 illegal: No possible last move
n3q1N1/3RnbQ1/p2r4/4bp2/q1R1BPR1/n1r2n1k/K1B1PQN1/2RN2b1 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Be3 Ba6 cxd5 Qd7 d6 Bc8 d5 Qd8 Bd4 exd4 Kd2 Kd7 Kc2 h5 Kb3 c5 g4 c4+ Ka3 a6 f4 h3 b4 h2 g5 d3 g6 c3 g7 d2 b6 h4 b7 h3 b5 c2 b6 c1B+ Kb3 Bb2 Ka2 Be5 Qb3 d1N Qb2 Ne7 g8B Qe8 Bh7 Ne3 Nf3 Nc2 Bg2 Na3 Rg1 h1Q Ne1 h2 Bc2 Rh3 Bge4 Rc3 Rg4 f6 Ng2 Qd1 Rg8 h1N Rg4 Nbc6 b8R Nd4 b7 Ne6 Qb6 Nc7 Qf2 Ra7 Ra8 Ng3 b8Q Nf1 Qb2 Nd2 Rb8 Bg7 Rb4 Na8 Rc4 Rc7 Qb7 Nf3 Qba7 Rd3 Nc3 Rd4 Rc1 Rd3 Bb1 Qa4 Nd1 Rc3 Qad4 Rc6 Bbc2 Rb6 Qc5 Bd4 Qg3 Bg1 Qcf2 Kd8 d7 Rd6 Rd4 Kc7 d8N Be6 Nf7 Kd7 Nh6 Bf7 Rc4 Rc6 d6 Ke6 d7 Rd6 Bb7 Bh8 Ng8 Bg7 Re4+ Kf5+ Rc4+ Rcd3 Rg6 Bh8 d8R Bg7 Bb3 Rc3 Rd7 Bh8 Qd4 Bg7 Qgf2 Bh8 Rh6 Kg4 Bc2 f5 Bbe4 Bg7 Rg6+ Kh3 Rg4 Bh8 Qf6 Bg7 Qg6 Be5 Qg7
1n2knRr/1b3NQP/r2R4/2KNPN2/B4pQ1/2pr4/q4N1r/1nb1BR1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 a5 b4 c5 e4 f5 h4 g5 d4 c4 e5 a4 d6 f3 Ke3 a3 d7+ Kf7 b6 g3 b7 a2 h5 g2 d5 f2 Kd4 f4 h6 g4 b5 g3 b6 Ba3 d6 Qf8 d8Q Bd7 h7 Ra4 Nc3 Qe8 Bd2 Ne7 Nd5 Ng6 Qg4 Bc6 d7 Nf8 Be1 Qe6 Qc7 Ra6 d8N+ Ke8 Rd1 a1R Nh3 g1R Nf7 c3 Bb5 f1N Ba4 g2 Nf2 Bc1 Kc5 Ra2 Rh6 Nd2 Rg6 Qc8 Rd6 Qe6 Ne7 Ra1 Rd3 Qa2 Nh6 Bb2 Nhf5 Rh1 Rd7 g1Q Nd5 Rh2 Rb1 Nc4 Bd2 Na3 Rf1 Qh1 Be1 Rb1 Rg7 Rd1 Rg6 Rd3 Rg8 Bb5 Qcg7 Nc6 b8N Bc1 b7 Nd4 Nc6 Nb1 Nd8 Bd7 b8R Nc6 Rc8 Nb8 Rc6 Bc8 Nf7 Bb7 Rd6+
4b3/1bRnq2p/bk4rn/1Qq3Pb/4BBQP/p3B1N1/2r1Q3/1RN2KQr b - - 0 1 illegal: No possible last move, all moves rejected
4RB2/n1k4p/q1rb1nq1/1R2Pp2/QN1n1PN1/KbrN2B1/2Q1Q3/Q3r2n b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Kd2 a5 Kc2 c5 Kb3 f5 g4 h3 g5 d4 g6 a4+ Ka3 d3 b4 h2 g7 c4 b6 c3 b5 c2 e4 d2 b7 Nc6 b8Q Nf6 g8N Ne8 b6 Bh6 b7 Bf8 Nh6 Qh4 d8Q Qh3+ Nc3 Bd7 Qh4 Qe3 Qa7 Nf6 b8B Qg5 Rb1 Qg6 Qe2 d1R Nf3 Re1 Nd5 Bc8 Qg7 Ra6 Ng4 Na7 Nfe5 Rc6 Bh6 c1N Nd3 Nb3 N5b4 Nd4 d7 Bd6 d8Q Ba6 f3 Bc4 Qdc7 Rc8 Qh8 Bb3 Bf8 Rc3 Qc4+ Kd7 Qg7+ Be7 Bg3 Rc6 Rg1 h1N f4 Ne6 Qhh2 Kc7 Qc2 Nd4 Qhe2 Qh6 e5 Qg6 Qh6 Bd6 Qhh2 Nh5 Qed1 Nf6 Qhe2 Kd7 Rb2 Kc7 Qa1 Nc8 Rf1 Nb6 Qb5 Rd1 Qa2 R6c5 Nc6 Rb1 Kb4 a3 Ne1 Bg8 Nd3 Nc8 Rb3 Ra1 Rfb1 Na7 Qab2 a2 Ra3 Nc8 Ra8 Na7 Re8 Be6 Qa3 Bg8 Rb3 Re1 Qab2 a1Q Qbb1 Qb2 Qa1 Qa2 Rb1 Qa6 Qba4 Bd5 Rb3 Be6 Ka3 Bd5 Kb2 Bg8 Rb5 Bb3 Ncb4 Rc6 Ka3
2R2NKn/B2qqQQp/1Pp3P1/N1R1bk2/1rb5/3rqN2/5Q1n/b2b1B1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 a5 Kg4 f5+ Kh5 c6 b4 f3 g4 f4 e4 a4 d4 f2 d6 Ke6 d5+ Kf6 b6 f3 b7 h3 g5+ Ke5 g6 a3 d7 h2 d6 a2 b5 Nh6 Qe1 Qe8 d8Q Qe6 d7 Qf6 Qe7+ Qe6 d8N Ra7 Nh3 Bg7 Be3 Nd7 b8N Ra4 Nd2 Ng4 Nb7 Rd8 Na5 Rb4 Ba7 Bh8 Rd1 a1B b6 Bf6 Qg7 Qe7 Rg1 h1Q Rg2 Ke6 e5 Kf5 e6 Nde5 Nd7 Nh2 Kh6 Qg1 Nf8 Rd3 Rc1 Ba6 Rc5 Bc4 Qe2 Qd7 e7 Bb3 e8Q Bd1 Rg4 Qg3 Qef7 Qe7 Bg2 f1B Re4 f2 Nf3 Qg4 Qea2 Bfe2 Rd4 f1Q Nf2 Qe1 Rd8 Bf1 Rc8 Qe3+ Ng5 Qgd4 Nh1 Qdd7 Qd2 Rc3 Qb2 Bc4 Bf1 Rd3 Qd5 Qd4 Nf3 Qe4 Qf2 Qe3+ Kh5 Kf4 Kh6 Nf7+ Kh5 Nh8 Kh6 Bfe5 Qdf7+ Qf5 Qgf6 Kg4+ Kg7 Qfd7 Kg8 Rb5 Nh4 Rb4 Qg7 Kg5 Nf3+ Kg4 Qd5 Kf5 Qdf7+
1Br3R1/1bq1n1np/1pQ3q1/BQ2N1bR/7P/3P1N2/q3NNK1/bqk1rQ2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 g6 f6 Qd6 f7+ Kd8 f5 Kd7 f6 Ra7 Bd3 Ra8 Bf5+ gxf5 Qe2 Kd8 Qf3 Qd7 Qf1 Qe8 Qe2 Kd7 Qd1 Qd8 Kf1 Kd6 a4 Kc5 g4 Kd4 h4 Kd3 d6 e5 d7 c5 g5 b3 a5 e4 a6 b6 a7 e3 g6 f4 g7 c4 Ra4 f3 Qe2+ Kc2 Ra3 b2 Ra5 c3 Rh5 f2 Qb5 e2+ Kg2 e1Q d3 Ne7 g8N Qc7 d8N Nd7 Nc6 Bg7 f8Q Nc5 f7 Qe4+ Nf3 Bb7 Nh6 Rc8 a8Q Qg6+ Ng4 Ne6 Nce5 Re8 Bd2 f1Q+ Kh2 Kd1 Rg1 c2 Ba5 Kc1 Nc3 b1Q Nf2 Qa2 Rgg5 Qd1 Kg2 Bf6 Qc8 Ng7 Qcd7 Rg8 Qdc6 Rc8 Qd8 Re8 f8B Nd5 Bd6 Ne7 Qdd7 Qe1 Qf5 Qd1 Neg4 Bd4 Nge5 Qe1 Nd5 Ba1 Rg4 Qb4 Nc3 Qbb1 Rg3 Rf8 Qh3 Rf4 Rg4 Re4 Qh1+ Re1 Qf1 Qd7 Bb8 Qc7 Qbd5 Kb2 Rg3 c1B Qdb5+ Kc2 Rg4 Bg5 Qbc4 Qe6 Bb4 Bf4 Ng1 Ne8 Ba5 Kc1 Rg8 Ng7 Ngf3 Bg5 Q4b5 Qg6 Ne2#
RR1N1b2/6PQ/1n2KB1r/q1b1nNkb/1p3b2/1pn1BBB1/1q2PQ2/3r2N1 b - - 0 1 illegal: No possible last move, all moves rejected
3knKQ1/1n3BP1/1p2N3/5rn1/2b1r1N1/QPR1QpRB/5r2/b1qBqBn1 b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 e5 hxg5 exf4 b3 a4 Bb2 a3 Qc1 axb2 Qc2 Bd6 Qd1 Bf8 Kf2 f5 Kf3 h5 g4 c5 d4 b6 a4 h4 e4 c4 a5 h3 a6 c3 d6 c2 d5 c1N a7 h2 d7+ Ke7 e5 Bg7 e6 Bd4 g6 Na2 d6+ Kf6 g5+ Ke5 e7 Ke6 e8B Rh7 g7 Ba6 g6 Qf6 d8Q Rh4 d7 Bc4 Qe2+ Be5 Na3 b1Q Qe3 Nc6 Ne2 Nc1 Rg1 h1N Rg3 Na5 Nc2 Nb7 Bf7+ Kd6 Qc7+ Ke7 Qd6+ Kd8 Ned4 Qe6 Qa3 Nf6 g8B Nf2 g7 Nh3 Bh5 Rc8 a8B Ne2 Bgf7 Rc5 Bg4 Qe1 Rc1 Ne8 Bgh5 Qh6 Ne6+ Ke7 Bg4 Ba1 Bgh5 Nf2 Bg4 Ne4 Bgh3 Rg4 Qd4 Qg5 Ne3 Qh6 Rc3 Ng1+ Kg2 Rh4 Ng4 Ng5 Qe3 f3+ Kh2 f2 Kg2 Nbd6 Bf3 f4 Bd1 Nb7 Kh2 Kd6 Kg2 f3+ Kh2 Kc6 d8Q Rf5 Qb8 Kd7 Qba8 Nf6 Qg8 Ne8 Rg2 Rh5 Kg3 Re5 Kf4 Re4+ Kf5 Kc8 Bd3 f1R Rg3 Rf2 Bdf1 Kd7 Nf4 Qd6 Ne6 Qdd2 Kg6 Qc1 Qh7 Ned6 Kf6 Kc8 Ke7 Ne8 Kf8 Kd7 Nc5+ Kd8 Qh8 Rh6 Qh7 Rf6 Qg8 Rf5 Ne6+
5qn1/QB1KR1p1/4rB2/2pnRr1R/4bbPq/b7/1Nr2kPB/2bQN1R1 b - - 0 1 legal: proof: f4 d5 a4 b5 axb5 e5 c4 dxc4 h3 exf4 Ra6 Qd7 Ra1 Qg4 hxg4 Bd7 Na3 Be6 Nb1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 e4 f5 b6 a5 d3 c3 b3 c2 b7 a4 Ra3 f3 Nd2 f2 Nc4 f4 Nb2 f3 Bf4 c1B Ra1 h4 Bh2 Nd7+ Ke6 Kd4 b8R Ke3 b4 h3 d4 a3 d5 a2 d6 Nb6+ d7 Bb7 d8B Rh6+ Bf6 Nd5 b5 Ba3 b6 c5 Ba6 f1R e5 f2 Nf3 Rg6 Rb1 a1B Ne1 Bc6 b7 Ra7 Bg1 h2 Re8 Rh6 b8Q Rb7 Na4 Rb2 Qa7 Rc2 Bb7 Bc3 Nb2 B3d2 Re7 Rg6 Ba6 Ba8 Kd7 Bb7 Bh4 Re6 Bf6 Bab4 Bg5+ Nf4 Ned3 Rg6 e6 Ba3 Re8 Be4 e7 Rf6 Bh4 Nd5 Bb7 Ra6 Ra8 Rg6 e8R Rc6 Re5 Re6 Na4 Bcb2 Qc1 Ke2 Re8 Be3 Re7 Bg5 Qf4 Bh6 Rd1 Bc1 Qg5 Re1 Nab2 f1Q Qh5 Qf8 Bf6 Rf1 Qh3 Rf5 Rf1 Bhf4 Qf3+ Kd2 Ne1 Rc4 Qb3 Ke2 Rf3 Rc3 Rh3 Kf1 Qd1 Rc2 Qd4 Ke2 Rh5 Kf1 Bf2+ Ke2 Rg1 h1Q Bg3 Qh4 Qd1+ Ke3 Bh2 Kf2 Qa5 Rc4 Qa8 Rc2 Qa7
3n1R1r/RN1qbrp1/5BQR/Qp1r1N2/1P6/2K1nNq1/2BNr1P1/k4qb1 b - - 0 1 legal: proof: f4 e5 c4 exf4 a4 d5 cxd5 b6 a5 Bb7 a6 Qg5 axb7 Qh6 Qc2 Qh5 Qd1 Qxh2 d4 Kd7 Kd2 Kd6 e4 a5 b4 c5 Qe2 f5 Nf3 h5 Qe3 h4 Nc3 h3 Nd1 c4 Qe2 b5 Qe1 c3+ Kd3 c2 Be2 a4 Qh4 a3 Qh6+ Nf6 Bb2 c1Q Re1 a2 Rf1 Be7 Nf2 Qg3 Qh5 h2 Bd1 h1R Ba4 Qd1+ Kc3 Nc6 b8R Nd8 Qg6 R1h5 Rh1 Rg5 Rh6 Rh5 Rc1 a1B Rc8 Ra7 Ra8 Rd7 Ra7 Rh1 Rb1 Re1 Rc1 Re2 Rb1 Qh1 Rf1 Qg1 Nd1 Qh1 Ne3 Qhh3 Rf2 Ne6 Nf1 Ng4 Nd2 Ne3 Ng5 f3 Rf1 f2 Ngf3 Rb7 e5+ Kd7 d6 Kc6 d7 Kd5 d8Q+ Rd7 Kd3 f4 Qa5 Nd8 e6 Qhg4 Kc3 Qf5 Rfh1 f1R Rg1 Rd1 Rf1 Rb7 Nb3 Ke4 d5 Rd7 d6 Rd5 Qg5 Rb7 d7 Qfh3 Qg6+ Qf5 Nh2 f3 Nd2+ Ke5 Nb3 f2 Nd2 Nf7 d8N Qfh3 Rh1 f1Q Rg1 Rbd7 Nb7 Nd8 Rh1 Bd6 Rg1 Rf7 e7 Qd7 e8N Be7 Ned6 Qe6 Nf5 Qd7 Nb1 Ke4 Rh1 Ke5 Nf3+ Ke4 Kb3 Kd3 Bf6 Be5 Nbd2 Bd4 Ka3 Kc3 R1h4 Bf8 Re4 Bd6 Re8 Bc5 Rf8 Be7 Nb3 Kc2 Nbd2+ Kc1 Kb3 Bb6 Ne4 Kb1 Kc3 Ka1 Ned2 Ng4 Nc4 Bg1 Nd2 Ne3 Bc2#
6r1/1k2n1p1/qNQ1b3/1p1bb1qP/Q1N2BBN/NRR3R1/3P1K1b/2r1n2q b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kd7 f4 b5 a4 c5 a5 Kc7 a6 e5 a7 g3 h5 e4 f6 c4 d6+ Kb7 f5 e3 d7 g2 f7 b3 f6 b2 Rh3 c3 Be2 c2 Na3 b1B Bg4 e2 Nf3 g1B Bb2 c1Q Nh4 Ba2 Be5 Qe7 d8Q Bce6 Rb1 Bad5 Rbb3 Nd7 Qe8 Qc6 Rhc3 Nc5 Bf4 Bh2 Kf2 Rc8 a8N Qa6 Nb6 Rc6 Nbc4 Nd3+ Ke3 Ne1 Kf2 Qd8 Rg3 Bd6 f8R Rc7 f7 Qg5 Qc2 Be5 Qc6+ Ka7 Rbc3 Ne7 Qa4 Rg8 Re8 Rc8 f8N Kb8 Nd7+ Ka7 Qd6 Kb7 Ndb6 Rc5 Rb3 Rc6 Rc8 Rc5 Ne3 Rc1 Rcc3 Nf3 Nec4 e1Q+ Kg2 Qh1+ Kf2 Ne1 Qc6+
k2NK3/6p1/1n1pRbPR/5NQ1/2r2q2/3NPb1B/1Bq2NQq/nbrq2B1 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 Qd3 e5 Qg6 exf4 Qxh5 Nf6 Qh7 Ng8 Kd2 f5 Kd3 a5 Kc4 a4 Kd5 a3 g4 a2 c4 d6 b4 Kd7 h4 Kc7 h5 Kb7 g5 f3 b6 f2 g6 f4 h6 d3 c5 f3 b5 d2 Nc3 d1B Ne4 Ra7 c6+ Ka8 c7 Ra3 b7+ Ka7 b6+ Ka6 Nh3 Nd7 Kc6 Ra4 b8Q Ngf6 b7 Nc5 Nf4 Rc4 Bb2 Nfd7 Bh3 f1Q Nf2 Qg2 N4d3 Qh2 Rc1 Bc2 Rce1 a1Q Qg8 Qd1 h7 Qe7 Qd5 Bb1 Qg5 Nb6 Qg2 Bf5 Qd8 Ka7 b8B+ Ka8 c8N Bg4 Ba7 Qe4+ Kc7 Qef4 Qg5 Qc2 Kd8 Nb3 Ke8 Na1 Ne7 Rg8 Nf5 Be7+ Kf7 Rgc8 h8N R8c6 Ke8 Bf6 Nf7 Rc7 Ne4 f2 Nd8 f1Q Nef2+ R7c6 Ne4 Na4 Bg1 Bf3 Nef2 Nb6 Bg4 Qhg3 Rh6 Qh2 Bh3 Qa4 Rc1 Qfd1 Rc3 Qac2 e3 Rd4 Rc5 Rc4 Re5 Qa4 Ne4 Rc1 Re6 Qac2 Nef2 Rc3 Nh4 Rc4 Nf5
R4B2/5pN1/1nN1Br2/b1PnkB1n/1P6/pKQ2b1R/2B1qbQr/qn4Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 b4 Ke6 h4 g5 e4 a5 c4 d5 Kc2 a4 h5 g3 h6 g2 h7 g4 c5 g3 b6 Qd7 b7 Qe7 Nc3 Nd7 b8Q Bb7 Rh3 Nb6 Nb5 Ra6 Ne2 g1B Qa8 g2 Nd6 Bf2 Bh6 g1Q Ne8 d3+ Kc3 d2 Ng7+ Kd7 Qe1 Nf6 Nd4 Nh5 Bd3 d1N+ Kc2 Qh1 Qg1 Nc3 Kb2 Qe6 Bc2 Bd6 Ra2 Qg4 e6+ Ke7 e5 Qe2 Ra1 Nb1 Ka2 Bc7 Kb2 Bc6 Qb7 Kd8 e7+ Kd7 e8B+ Ke7 e6 Kf6 e7 Ke5 Bd7 a3+ Kb3 Bd8 e8B Bc7 Bdf5 Bd8 Nb5 d4 Bed7 d3 Bde6 d2 Nd4 d1N Qa8 Ne3 Ra2 Be8 Qag2 Bc6 Ra1 Bf3 Ra2 Rf8 h8Q Ned5 Ra1 Nbc3 Rd1 Nb1 Bg5 Re8 Be7 Rg8 Bf8 Bc7 Qh6 Rh8 Qd2 Rh6 Qc3 Rf6 Be7 Ra8 Rd2 Rh8 Rd3 Na8 Bf8 Ba5 Bc8 Nab6 Re3+ Kf4 Re8 Rh7 Bce6 Ke5 Rd8 Nhf4 Rg3 Rh2 Rh3 Nh5 Qc1 Qhe1 Ra8 Q1d1 Qe1 Nbc3 Qb2 Qa1 Qeg1 Nb1 Qc3 Qe4 Be7 Qe3 Bf8 Qe2 Nc6+
1q2Qb1K/R4pNQ/2p1r1P1/rQr4N/bBn1q3/2Nk2n1/RB3P1q/5rN1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Rh3 Kf5 Kd2 Ke4 Kc3 a5 b4 h5 g4 c6 b6 a4 b5 a3 b7 a2 b6 Ne7 g5 Nf5 Qc2+ Ke5 e4 Rh6 Bb2 d4+ Kd3 Qe8 d8N Be6 d7 Bb3 Ne6 Qd8 Rf3 h3 Nf4 h4 Nh5 h2 Rg3 Qe8 d8Q Nd7 b8B+ Rd6 b7 h1Q Bc7 h3 Ba5 h2 Bb4 Nb6 Qc8 Ra4 b8Q Nc4 Qb5+ Rd5 Rh3 Ra7 Qd8 Re7 Qd7 Qb8 Qd8 Ke6 e5 Rc5 Qc8+ Kd5 e6 Re8 e7 Qg2 Rf3 h1Q Rh3 Qhh2 Rf3 Kd6 Ke4 Ng3+ Kf4 Qgh1 Qh7 d3 g6 Kd5+ Kg5 Ke4+ Kf6 d2 Qd8 Bc2 Ra3 d1R Ra7 Rf1 Qc8 Q1g2 Nc3+ Kd3 Qe6 Qe4 Qe5 Rd8 e8N Rd6+ Qe6 Be7+ Kg7 Bf8+ Kh8 Bd1 Rb1 a1R Neg7 Ra5 Qe8 Re6 Ra1 Ba4 Ra2
kq3Q1n/5pP1/B1nQNn1Q/Bqn1b3/5P2/bN3B1p/1rqB1r2/1R4RK b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Bf4 Be6 Bd2 cxd4 Bh6 d3 Be3 d4 Bc1 Bd5 exd5 Qc8 Nf3 Qc7 Ng1 Qd8 b4 Kd7 g4 Kc7 c4 Kb7 f4 h5 Kf2 e5 Kg2 a5 g5 h3+ Kh2 e4 d6 h4 d7 a4 g6 a3 c5 e3 b6 e2 b5 e1N g7 a2 Qd2 Nc6 Qc3 d2 Qf3 d1N Qd5 d3 Qd6 d2 Ne2 Ng2 Rg1 Nb2 Qh6 d1Q Nd2 Nd3 Nd4 Qb8 d8B Nf6 Be2 Qc2 Rb1 a1B Kh1 h2 N2b3 Ra2 Bd2 Rb2 Ne6 Ka8 Bf3 Rh7 Qg6 Rh5 Qh6 Re5 Bc7 Re2 Bd8 Rf2 Bc7 Ne5 Bd8 Ng6 b7+ Ka7 B8a5 Ne1 Rg2 Nh8 Rg1 Nb4 c6 Ned3 c7 Nc6 c8B Ba3 Bc1 Nc5 Bcd2 Ra2 Rbf1 Be5 Rb1 Rb2 b6+ Ka6 Bd7 Qd6 b8Q Qdd3 b7 Qb5 Qc8 Ka7 Qc7 Nd3 b8Q+ Ka6 Nbd4 Nc5 Qd6 Ng6 Qbh8 Kb7 Bc8+ Ka8 Qh5 Rf1 Qe8 Qb8 Qef8 Nh8 Kg2 h3+ Kg3 Nh7 Ba6 Nf6 Nb3 h1Q Rg2 Rf2 Qh6 Qf1 Kh2 Qfc4 Kh1 Qb5 Rgg1
R1NbB1r1/Nr1bP3/2N1Q1k1/N1K2Rrp/2nP1bQ1/p3r1B1/2q2Bqn/8 b - - 0 1 illegal: No possible last move
1nn1n3/2bnPNNq/QB1q3R/1p5K/1qB3P1/r1R1r3/3RpkQ1/Q2b3R b - - 0 1 illegal: No proof kernel
k7/NQnqP1bn/1rqrpN2/4rQp1/q3r3/1RR5/NN2P3/1BK1BRb1 b - - 0 1 illegal: No extended proof kernel
Q2QqnN1/1bn1P1NB/p2Rq1B1/1RqkprQ1/b2r1q2/3nP3/1B6/2B4K b - - 0 1 illegal: No possible last move, all moves rejected
Br1BrkB1/2b1pr1N/5R1q/R1q2n2/2rR1R1P/1Q3N1K/n2bP2p/1q3Q2 b - - 0 1 illegal: No proof kernel
1NB1RQbr/nq2pbP1/N1R3Q1/3nn3/1Br2p2/5P2/1k2rBQr/1q3BK1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 e3 d3 Be2 Bg7 Bf1 Bd4 Ra2 Bc5 Kc3 d2 Ra1 d4+ Kc4 d3 Kc3 Bd4+ exd4 Be6 Ra3 Bg4 Ra1 Bc8 g4 Kd7 b4 Kd6 g5 Kd5 g6 a5 g7 f5 f3 h5 b6 a4 b7 h3 b5 h2 b6 h4 Ba3 h3 Ne2 f4 Bb4 Na6 b8Q a3 b7 a2 Na3 Ra7 Rc1 a1R Nb5 Qb6 Qc7 Nh6 b8B Ra8 Ba7 Qb7 Qb6 Nb8 Qg6 Be6 Bb6 Ng4 Nc7+ Kc6 Ba7 Ra4 Na6 Kb5 d5 Nc6 d6 Bg8 d7 Nge5 Bf2 Na7 d8Q Ra2 Kd4 Ka4 Qf8 Rc8 c4+ Rc2 c5 Kb3 c6 Kb2 Qe1 d1N c7 Ne3 Qd2 Nd5 Ke4 Bf7 Nd4 Bg8 Qe2 d2 Nc6 d1B Ncb8 Rd2 Rc6 Bb3 Bh4 Bc4 Qeg2 Re2+ Kf5 Bb3 Bf2 Ba2 Rg1 h1Q Kg5 Bh7 Kh4 h2 Kh3 Bc4 Rd6 Bb3 Rd8 Ba2 Re8 Bc4 Q2g5 Ba2 Rg4 Bg8+ Rh4 Bb3 Qg2 Qg1 Rh6 Bc4 Bfe1 Qgb6 Bf2 h1R+ Qh2 Qb5 Kg2 Bb3 Qhg3 Rh2+ Kg1 Qd3 Qg2 Qb1 Nd7 Ne3 Ndb8 Bbf7 Qc6 Nd5 Qcg6 Rd8 c8B Rd7 Qe4 Rc7 Rf6 Rc5 Rc6 Rc4 Qeg6
rQnr3q/1QK1ppB1/2n2q1B/6k1/Nn4P1/RQ2bbR1/3Pq1B1/1q2BN2 b - - 0 1 illegal: No possible last move
R1qQ1b2/1k1P2r1/1qbn1Q2/BB1R1bBR/N5Np/4P1q1/np3r1B/1b2K3 b - - 0 1 illegal: No proof kernel
2q1bKBq/qk1PrN2/p1Q5/7R/b2BQ1Nr/n2pbR1R/1bP5/2N2n1R b - - 0 1 illegal: No possible last move, all moves rejected
2qb1Nn1/3P1b1P/2QR1r2/4QnR1/3BBq2/Bpp1N2k/4K1Qn/2q1Br1q b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 h4 Kf7 f4 Kf6 a4 g5 d4 c5 d6 e5 h5 b5 a5 g3 h6 g4 a6 e4 d5 b3 d7 c4 d6 b4 h7 e3 a7 e2 Rh6+ Kf7 f6 Ke6 f7+ Kf5 Bd2 c3 Nh3 g2 Ng5 g1N Ne6 g3 Ra5+ Kg4 f5 g2 f6 b2 Qc2 b3 Na3 Nc6 Nc4 Be7 f8B Nd4 f7 Nf5 Bg7 b1Q+ Kf2 Qb2 f8B Qc1 Bd4 Nf3 Be1 Nh2 Qa2 Rb8 a8Q Rb6 Qc6 Ba6 Rc5 Qc8 d8Q Bb7 Qde8 Bd8 Rg6+ Kh3 d7 Qh6 Ne3 Qf4+ Kg1 Ba8 Ra5 Bb7 Ba3 Ba6 Qb2 Bc4 Nf8 Bf7 Qe5 Ra6 Rd6 Rb6 Bf2 e1Q Qc2 Qc1 Be1 Ra6 Bd3 Rb6 Be4 Ra6 Bf3 Rb6 Kf2 g1Q+ Ke2 Qh1 Be4 Ra6 Qa4 Rc6 Rdd5 Rf6 Qc6 Ngh6 Qa2 Rg8 Qd2 Rg1 Rd6 Ng8 Qe7 Ng7 Rg5 Rf1 Qe5 Nf5 Kd3 Rg1 Qf2 Rf1 Ke2 Nf3 Qg1 Nh2 Qg2+
1r2Q2q/R1NpB3/1rR4n/1Bn2Rk1/nRK4b/3PPq2/Q1n2p2/1b1NN2b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 g4 Ke7 c4 Kf6 e3 a5 Ke2 h5 Kd3 a4 c6 f3 c7 f2 b6 a3 b7 a2 c5 h3 c6 h2 Kd4 h4 Nf3 h3 Bb5 f1N Nc3 Ra6 Rg1 h1Q Qc2 h2 Ba3 Ng3 Rgf1 Nh6 Ne1+ Qf3 Kc4 h1B Nd1 Ne4 g5+ Kg6 Bb4 f5 Be7 f4 d3 Rb6 Qb2 Na6 b8R Bb7 c8N Nac5 c7 Na4 Na7 Nec5 c8R Bg7 Qc2 Bf6 Rc6 Kf5 g6 Bh4 g7 Re8 Rb1 a1N Qa2 Nc2 Ra8 Qb8 g8Q Qe5 Rc1 Qh8 Rb1 Rb8 Qe8 Ba6 Rb4 Kg4 Rf6 Kg5 Rf2 Qh5 Rh2 f3 Rh3 f2 Rhf3 Kg4 Rc6 Bb7 Rff6 Kg5 Nc8 Qe2 Nd6 Qf3 Ra7 Ba8 Qf7 Bb7 Ne8 Ba8 Nc7 Bb7 Rce6 Be4 Qe8 Bh7 Rb7 Bg8 Ra7 Na6 Qb1 Na3+ Kd4 N6c5 Rc6 Ba2 Qb3 Bb1 Qa2 Nc2+ Kc4 Qg7 Rce6 Qh7 Rc6 Qh8 Rf5+
N2Nq1Nb/2Qp1b2/R1N2p1k/1n1P1K1b/rR6/q3rn2/1P1QB3/b3QB1q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 a4 exf4 axb5 Ne7 d5 Ng8 Be3 Rh6 Bf2 Rh8 Bd4 cxd4 Kd2 a5 Kd3 g5 Ke4 f3 h4 a4 c4 a3 b6 f2 b7 d3 h6 d2 c5 g4 c6 a2 h5 g3 c7 g2 h7 f6 h6 Kf7 Nf3 Kg6 Na3 g1Q Ne5+ Kg5 Nac4 Ra3 Qe1 d1Q Rh4 Qa4 Nc6 Na6 b8Q Bg7 e3 Qa5 Nb6 Ne7 Na8 Re8 h8N Ra4+ Qbb4 Bb7 c8N Nc7 h7 Nf5+ N8e7 Nd4 Qbd2 Ba6 Rg4+ Kh5 Nf7 Nf3+ Kf5 Qh1 e4 Bh8 e5 Be2 e6 Nb5 Rb4 Qc8 Nfd8 Qa7 Rc1 a1B Rc3 Qe3 Ra3 Kh6 Ra2 Ra7 Ra6 Bd1 Bh3 f1B Bg2 Bfe2 Bf1 Bc4 Qg3 Bce2 Qc7 Ng5 Qe1 Bh5 Qd2 Bf7 Qe1 Bdh5 Qd2 Bg7 h8Q+ Nh7 Qg8 Bh8 Qgg3 Ng5 Qge1 Qg3 Ng6 Qa3 e7 Rg8 e8B Rg7 Kf4 Nf3 Nge7 Rg3 Kf5+ Ng5 Rb6 Ra4 Ra6 Re3 Be2 Bg8 Bg6 Nf3 Bh7 Be8 Bg6 Bgf7 Bh5 Qb8 Bg4 Bh5 Bh3 Bef7 Bhf1 Qc8 Nb7 Qf8 Nbd8 Qe8 Ng8+
r1n2NB1/1bbpN1K1/RqR1PR2/1q2Nbb1/Qn1p4/2Rr4/k5P1/4BqQ1 b - - 0 1 illegal: No possible last move, all moves rejected
4Qb1N/3pn2R/K1NPq1qN/N4r2/1kP2n2/2nb2rR/1p1QB2b/2b2B1Q b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 Ke2 h5 Kd3 e5 Kc4 Ke7 d4 Kd6 f4 a5 g4 b3 b7 h3 f6 e4 f5 a4 c3 a3 f7 e3 f6 h2 b6 h4 Kb5 a2 d5 e2 g5 e1B g6 h3 g7 Na6 b8N Rh5 b7 Bg3 Nd2 Nc5 Nc6 Qe7 Ne2 Qe6 Ned4 Ne7 g8B Na4 c4 Rf5 Bh7 Nc3+ Kb6 Rb8 Ka6 Kc5 d6 Be5 Rc1 a1B Bg6 Bb2 Bh5 Bf4 Bhe2 Ba3 Ra1 Bc1 Ra3 b2 Qe1 Rg5 Rb3 Rg3 Nf5 Be5 Nh6 Bf4 Rg1 h1Q Rg2 Be5 Rh2 Qe4 Rh1 h2 Qd1 Bg7 f8Q Qg6 Qh8 Bf8 f7 Bf4 Nf3 Be5 Na5 Bef4 Ra3 Kb4 Qd2 Be5 Ng5 Bf4 Rg1 h1N Rg2 Nf2 Rh2 Nd3 Rh5 Bg7 f8Q Bfe5 Rh1 Nf4 Qe8 Bf8 Ngf7 Ra8+ Kb6 Ra7 b8N Bb7 Qh7 Be4 Nh8 Rc7 Ka6 Rc5 Rh2 Bd3 Rh3 Qg7 Qe4 Qgg6 Qh1 Bd4 Rh2 Bg1 Rh3 Bh2 Rb3+ Ka4 Nbc6 Rf5 Rb5 Rf6 Rbh5 Rf5 Ng8 Ka3 Rh7 Ka4 Nh6 Ka3 Ne5 Kb4 Nec6+
b1r5/2BpNP1b/5P2/p5Nn/nrQR2K1/qQ2b3/1rN1B1Q1/1Rkq1N1r b - - 0 1 illegal: No possible last move, all moves rejected
B1N4K/r2prprN/6qR/Bn4qN/1P1PBNn1/Q2b3k/R1n2r2/5Q1b b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 d4 a5 e4+ f3 b7 h5 b6 c5 Nd2 c4 Ra2 a4 Nh3 a3 Nf4 c3 Nc4 h3 Ne3+ Kh4 g4 h2 g5 c2 g6 f2 g7 Qf8 Bg2 Nh6 Kf6 f1B g8B Qd6+ Kg7 Na6 b8Q Bd3 e5 Ra7 b7 Nc7 e6 Nb5 e7 Ng4 Bh7 Re8 Qa8 Qa6 b8N Bb7 Bd2 c1Q Nc6 Kg3 Qf1 h4 Bge4 h3 Neg2 Qc5 Bhg6 Qg5 Kh7 Rg8 e8N Rg7+ Kh8 Qb6 Ne7 Bc6 Ra1 a2 Nc8 Bb7 Bgf5 Qbg6 Nf6 Bc6 Nh7 Bd5 Rb1 a1N Rb2 Nc2 Ra2 Bc6 Bd5 Bb7 Bfe4 Bc6 Rg1 h1R Be3 h2 Nh5+ Kh3 Bf4 Bb7 Bc7 Bc6 Ba5 Bb7 Qa1 Bc6 Rd1 Re1 Qc1 Re2 Rh1 Rf2 Qa3 Rb7 Qa6 Ra7 Re1 h1R Rf1 Re2 Rf6 Rhe1 Re6 Rf2 Rf6 Q6f5 Rh6 Bb7 Qf6 Qfg6 Qf4 Ba6 Ba8 Bb7 Bf5 Bf3 Qfc1 Re5 Bfe4 Re7 Qf1 Kh2 Nh4 Bh1 Ng2 Kh3 Ngf4+
4Q3/1bP3B1/1B6/1r3knq/1NpRrB1p/2PB3b/N1K1R1Qq/1n1rRqr1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 Ra4 c4 Ra1 Bc5 dxc5 exf4 Kd2 Ke7 b4 Ke6 g4 d5 e4 a5 g5 f5 g6 h5 g7 d4 c6 h3 e5 h2 b6 a4 c7 d3 b5 h4 c3 f3 b7 a3 b6 f4 Bg2 a2 Ne2 f2 Qc2 f1Q Na3 Ra5 Be4 Nf6 g8R f3 Rg2 Na6 b8B f2 b7 Qe8 Ba7 Qh5 b8B Nh7 Bd4 Nc5 Ba7 Re8 Bb6 Ng5 Qb2 Re7 Nc2 Rb5 Nb4 Bb7 Rhg1 h1Q Rg4 Qfh3 Re1 f1B Kd1 d2 Bd3 Q1f3 Kc2 d1R Bf4 Nb3 Nc1 Nd2 Re2 Qh2 Rb1 a1R Nca2 Bh3 Rc1 Be4 Rb1 Kf5 e6 Rg1 Bg7 Qf1 Rbe1 Re8 e7 Rd1 Rgg2 Nb1 Rgf2 Rd8 e8Q Rd4 Rf3 Kg4 Re3 Bb7 Re5 Re4 Rd5 Qhg2 Rd4 Kf5 Qc1 Qgf2 Qe3 Q2g2 Qg3 Qh2 Qg2
1r1BRn1B/2P2K2/1Qb4R/pnn3q1/p1Q5/k1brQ3/P2NnQ2/R1r2qN1 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 Ba6 bxa6 gxh5 a5 Kd2 a4 Ke2 Ba6+ Ke1 Bc8 Kd2 g5 Kd3 a5 Ke4 d5+ Ke5 Kd7 f4 Kc6 b4 Kb5 h4 d3 c3 d4 h6 d2 h7 d3 h5 g4 f6 g3 f5 g2 f7 Bb7 Ke6 Na6 f6 Rc8 h6 Bc6 Qe1 d1N Qe3 Bg7 f8R d2 f7 Nf6 Re8 Nd7 f8Q Nac5+ Kf7 e5 Bb2 Kc4 b5 e4 b6 Qg5 b7 Be5 Qg8 Nf8 b8Q Bd4 Qf2 e3 Qb6 e2 Bc1 e1Q Rh4 Kd3 c4 Kc2 Bb2 Bg7 Bf6 Nc3 Bd8 Nb5 Qe3 d1R Nd2 Kb2 Rh2 Nd3 c5 Qf1+ Qf2 Ka3 Rh3 Bf3 c6 Bc3 c7 Bc6 Qe3 Nc5 Qg6 Rg8 h8Q Rb8 h7 Rc1 Qhd4 Rh8 Rh6 Rg8 Ngf3 g1N Qc4 Ne2 Ng1 Rh8 Qb1 Rg8 h8B Rg6 Qc2 Rd6 Qg6 Rd3 Qge6 Bb7 Qa6 Bc6 Qb6
2n3NK/QRP5/1bp1B1Qn/bbkq2p1/N1rR1R2/q1B2r2/bn4PQ/3Q4 b - - 0 1 illegal: No possible last move
3Nn2Q/b1Pn1P2/3Q3q/2b1nb2/KR3b2/B2R1r2/RQp1p2k/1NRB1rq1 b - - 0 1 illegal: No proof kernel
1RQ2b1n/N1p2q1r/1b2nn2/N3rPR1/3b4/2QqkBB1/2P2Rp1/1Q2KbR1 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 g4 hxg4 d4 e5 dxe5 fxe4 f4 Ke7 b4 Ke6 h4 Kf5 h5 a5 h6 d5 e6 g5 b6 d4 b5 g3 b7 g4 e7 e3 e8Q d3 h7 a4 b6 a3 Be2 d2+ Kf1 a2 Qc6 Ne7 Na3 Qe8 Qc4 Ng6 Bb2 Ra5 Qb4 Qf7 Be5 Nd7 b8Q Nf6 Rh3 Ba6 Qc3 Ke4 f5 Bb5 Qe1 d1Q b7 Bc4 Bf4 Re5 Nf3 Qdd7 Rb1 a1N Qd8 Nb3 b8R Nd4 Rh2 Ne6 Qc8 Ba6 Nb5 Qd2 Bd1 e2+ Kg2 Qd6 Nfd4 Qd5 Qf1 e1B Nb3 Bf2 Na5 Bb6 Na7 Qd4 Qb5 Qe3 Kf1 Qf3+ Rf2 g2+ Ke1 Qg3 Ke2 g1B Rf1 Bgc5 Rf2 Bd4 Kd2 Qh3 Be2 g3 Rg1 g2 Qb1 Bd3 Ke1 Qf3 Bd1 Bf1 Bg3 Qd3 Bh5 Ke3 Bf3 Rg8 h8R Rg7 Rh7 Nh8 Rh5 Rh7 Rg5
1BN1BQnR/n1pbN3/n2bN3/Q2qP1k1/3qp1Nr/1r1R4/K1P1bn2/7R b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 Kf7 Kc3 Kg6 Kb3 h5 g4 a5 f4 d5 b6 a4+ Ka2 h3 b4 h2 f5+ Kh7 b7 h4 g5 d4 f6 Kg6 b5 a3 f7 d3 b6 h3 Qd2 Nc6 b8Q Ra7 b7 Bd6 f8N+ Kh5 g6 Kg4 g7 Bd7 Ne6 Rh4 Qa5 d2 Bb5 d1Q Nc3 Qd4 Nf3 Ra8 Bb2 Na7 Nd5 Kh5 Rhd1 h1N Nb6 h2 Rd3 Nf2 Nc8 h1B Nh2 Bf3 Ng4 Be2 Rh1 Kg6 Bc1 Kh5 Be3 Qd5+ Kb1 a2+ Kb2 a1N Bd4 Ne7 g8N Nb3 Be3 Qd4+ Ka2 Nc5 Ba4 Na6 Bc6 Nd5 Nge7 Nf6 Ba4 Nc6 Bb5 Ra7 Qa8 Ng8 b8R Rb7 Ba4 Rb3 Bb5 Qc4 Ba7 Qd5 Rb7 Qd4 Bb8 Na7 Ba4 Rc3 Rbb1 Rb3 Rbf1 Nh3 Rf8 Nf2 Bb5 Nh6 Rh8 Qd5 Nc5 Kg5 Ba4 Ng8 Bc6 Bf5 Be8 Bd7 Bg6 Qd4 Nb6 Be6 Bh5 Nb5 Ba7 Qb8 Bg6 Qb7 Qf8 Qc6 Bb8 Na7 Nbc8 Qcd5 Be8 Bd7 Ne6+
4kB2/1bp2nn1/QrRPq1N1/q1b2Q1N/1PQ1B2p/bK4R1/n3Qr1B/7n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b4 h5 g4 f5 e4 a5 d4 a4 Kd2 h3 Kc2 a3 d6 h4 g5 h2 d7+ Ke7 e5 a2 d5 f3 d6+ Kf7 b6 f4 b7 f2 Nh3 f3 Rg1 h1N Bd3 f1N Na3 f2 Qe2 Ra6 Kb3 Nc6 b8Q Qf6 d8B Nge7 e6+ Ke8 g6 Nf5 e7 Bb7 g7 Qe6+ Nc4 Nf1g3 g8Q f1Q Qa7 Rb6 Nf4 Ne5 Nh5 Nf7 Qa6 Ne4 Bf4 Ng7 Rc1 a1B Bh2 Nc3 Be4 Bb2 Rg3 Ba3 Qg4 Qh3 Qf5 Na2 Rc2 Qd5 Rcc3 Qc5 Ne5 Qa5 Rc6 Rh7 Ng6 Rh6 Ngf4 Rf6 Ng6 Qg4 Qfb5 Rf2 Qf5 Ng5 Qgc4 Nf7 Qfc5 Qe6 Q5d5 Nf5 Qdb5 Bh6 Qc5 Ng7 Qf5 Kd7 e8Q+ Kc8 Bg2 Be3 Be4 Bc5 Be7+ Nd8 Qg8 Kd7 Bf8 Nf7 Qh7 Ke8 Qh6 Ne5 Qe3 Nf7 Qe2
2q1QNR1/RNp1qP2/B1B1n3/4N1qR/1NPp1b2/kq6/1b2rrn1/4Q1Kb b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 h4 Ke7 f4 d5 e4 g5 b4 a5 e6 Kd6 f5 a4 f6 a3 h5 a2 h6 d4 e7 g2 Kf2 Bb7 e8B Qe7 c3 Na6 h7 Nh6 f7 Nf5 b6 Bh6 b5 Kc5 e5 Nh4 Bc6 Rhe8 h8R Ra7 Nf3 g1Q+ Ke2 g3 e6 g4 Na3 g2 Rg8 g3 Nc4 Qh2 Na5 Qh3 Ne5 g1Q Qe1 g2 Rh2 Qh1 Kf2 Bf4 Be2 Ba8 b7 Qd3 b8N Qd1 c4 Qb3 b6 Bb7 Bef3 g1Q+ Ke2 Ba8 b7 Ng2 Rh5 Qh3 Bfd5 Qge3+ Kf1 Qd2 Kg1 Kb4 Bf3 Ka3 Nbd7 Nc5 b8N Qg4 Na6 Qf5 Rd1 a1B Nf8 Bb2 Nb7 Qa5 Bfd5 Qfg5 Nb4 Qa6 Nd6 Qc8 Nb7 Ra6 Bb5 Rb6 Ba6 Rd6 Bc6 Rd5 Ng4 Re5 Rd3 Re2 Ne5 Rf2 Rg3 Qed7 e7 Ne6 Rhh3 Rd8 e8Q Qde7 Rh5 Rd5 Nf3 Re5 Rgh3 Re3 Ne5 Ree2 Rc3 Qh4 Rc1 Qhg5 Ra1+ Qa2 Bab5 Kb3 Nd6 Ne3+ Bg2 Bd5 Nb7 Qa3 Nbc6 Qab4 Ra7 Bf3 Nba5+ Ka3 Ba6 Qb3 Nb7 Be4 Nb4 Bd5 Ng4 Be4 Bf1 Bh1 Bg2 Qec5 Bd5 Qce7 Bc6 Ng2 Ne5
2BQ2r1/1P1K3n/1N1b1Qb1/2qnQ3/1Rqp2k1/Nr1pP2q/R1q3rB/4QN2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Kg5 Kd5 a5 h4+ Kg4 b4 f5 c4 g5 e3+ f3 c5 f4 c6 a4 h6 a3 h5 a2 c7 Ra3 b6 Ne7+ Kd6 Rb3 h7 Rg8 Qe1 f2 h8Q f3 Ba6 f1Q b5 f2 h6 Qc4 b7 f1Q b6 d3 h7 Qh3 Na3 Qe8 Qe5 Qeh5 Rb1 a1Q h8Q Qa2 Rh2 Qac2 Bb2 Nd5+ Qe7 Kf5 Ne2 g4 Be5 g3 Qf6+ Kg4 Bf4 g2 Ng3 g1R Nf1 Qf5 Rd2 Rg2 Bh2 Nc6 b8Q Nd4 Re2 Ne6 Rd2 Bb7 Qd8 Ng5 c8N Nh7 Rb2 Nc7 Ra2 Be4 Rd1 Qfh5 Rb1 Bg6 Rbb2 Nd5 Qe5 Bh6 Q7f6 Bf4 Bb7 Nc3 Ke7 d5 Kd7 d4 Ba6 Nd5 Rb1 Rc3 Rb4 Rb3 b7 Qh6 Nb6 Qf8 Bb5 Bg3 Ke6 Bf4 Bd7 Qfc5 Bc8 Bg3 Kd7 Bf4 Qee7 Bd6 Qee5
r1R1q3/1PB2r2/1Qq1br2/N2QQ2P/Q2R1p1K/1N1B1p1R/k1q1n1rb/3n4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 h4 c5 e4 g5 b6 a5 b7 a4 b5 c4 b6 c3 h5 f3 Kg3 a3 Bc4 a2 Na3 c2 Qd2 Rh6 Qd1 Rf6 Qe1 Nc6 b8R Nh6 b7 Be6 Qd1 Qe8 Rh3 Rf7 Bb2 c1Q Qa4 Qc2 Rd1 a1Q Rc8 Qac1 Bd3 Bg7 Ne2 Be5+ Kf2 Bh2 e5+ Kd7 d6 g3+ Kf1 g2+ Kf2 g1R d5 g4 Nc4 Rg3 Na5 Rg1 Bd4 Rg3 Bb6 Rg2+ Ke1 g3 Bc7 Rf6 Nd4 Ng4 Ndb3 Nf2 Qa1 Nd4 Qa4+ Qc6 Kf1 Qc2 Ke1 Qd8 Rd2 Ke8 d7+ Kf7 d6 Qe8 d8Q Ne2 d7 Nd1 Kf1 Rh6 Qg5 Rf6 Qe3 Ke7 d8Q+ Kf7 Qb6 f4 Qd6 Bg4 Qdd4 Ke6 Qd8 Rf7 Qg5 Kd5 e6+ Bf5 e7 Rf6 Qg8+ Be6 Bc4+ Ke4 Rd4+ Ke3 Bd3 Rf7 Nc5 Kd2 Ncb3+ Kc3 Qg5 Kb2 Qd5 Qg8 e8Q Qg6 Qac4 Ka2 Qh8 Qg8 Qhe5 Qge8 Qa4+ Kb1 Qbb5 Bg1 Qa6 Rh2 Rh4 g2+ Ke1 Rh3 Q6b5 Rg3 Qb6 Rg6 Rh2 Rgf6 Rh1 Ndc3 Rh4 Bh2 Kf2 g1R Qdc4 Rg8 Qcd5 Bg3+ Kf1 Nd1 Rh2 Nc1 Kg1 Ne2+ Kh1 Rg4 Rh4 Be1 Kh2 Bg3+ Kh3 Bh2 Bg6 Rg2+ Bf5 Ng3 Kg4 Kb2 Rh3 Ne2+ Kh4 Kb1 Bd3 Kb2 Qab4 Ka2 Qa4+
BB1r3q/1P2b3/n4p2/1pRQBNrr/R3QB1N/1R1P2q1/k2K1nn1/r2b4 b - - 0 1 illegal: No proof kernel
1b6/nP1p1K1p/3k1BB1/bb1B1N1P/Q1qq2R1/2q2RQB/Q4r1b/1N1nr3 b - - 0 1 illegal: No possible last move
6kn/1p1q2n1/2Q3qN/1q1P1rNp/Pr2B3/B2NNb1Q/1r1QRK2/Rrb5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 g4 h5 f4 e5 g5 c5 f6 h3 a3 e4 d6 b3 d5 e3 f5 b2 d7 e2 Qa4 c4 Qa6 c3 Bg2 c2 Be4 h2 Nh3 Ne7 g6+ Kg8 g7 Ng6 Nf4 Nc6 Kf2 e1R Nc3 b1Q Nd1 Nce7 Qc6 Qb5 Ne3 Ra4 Nd3 Rb4 a4 Rb2 Rg1 h1R Rg2 Rh4 Rh2 Qc7 d8Q Qd7 Qa5 Rh6 Qac3 Nh8 Qd2 Rg6 Rg2 Rg5 f7+ Kh7 g8N Bh6 f6+ Nf5 Bf3 Rhb4 f8Q Ng7 f7 Rf5 Qfc5 Bg5 Nh6 Bf4 Qcc3 Rg1 Nhg4 Rh1 f8N+ Kg8 Ne6 Re1 Be4 Rd1 Qe2 Rg1 Bd2 c1Q Ng5 Qc2 Qf3 Rgb1 Qh3 Qb3 Qc1 Qc3 Qc2 Qf6 Bc1 Qg6 Qd2 Rc2 Ba3 Rcb2 Nd1 Be3+ Ke1 Bf4 Re2 Be3 Qdc2 Bc1 Nde3 Qge8 Q2c3 Qg6 Qd2 Rf6 Qa6 Qd6 Nge5 Bg4 Qc6 Qd7 Nef7 Bf3 Kf2 Rf5 Nh6+
1B1R3Q/1p3B2/2BPQb2/r1k4P/Npbr2r1/RQ1nK1B1/q1N4n/n1r2q2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 a4 Kd6 d4 g5 h4 f5 e4 c5 h6 f3 h7 f4 h5 g4 a5 c4 a6 c3 a7 c2 Ne2 Nh6 Bg2 Nd7 Na3 Nf5 Nc3 Bg7 Na4 Bf6 Bd2 c1R Nc2 Qf8 Be1 Qf7 Ra3 Rd8 h8Q Nc5 Rh2 Ne3 e5+ Kc7 e6 Kd6 e7 Be6 e8B g3+ Kg1 Qg8 Bf7 Nd3 Bh1 Rd7 Rd2 g2 Bg3 Rdd8 Qe1 Rd7 Rd1 Rdd8 Qc3 Rd7 Qb3 f2+ Kh2 f1N+ Kg1 Nh2 Qh6 Nb2 Kf2 g1R Ke2 Nd3 Kd2 Rc8 a8Q Rc5 Qe8 Ra5 Qh8 Ne5 Qc8 f3 Qcc4 f2 Qe2 f1Q Be4 Ke7 d6+ Kf8 d5 Nd3 Qe1 Rd8 d7 Ke7 Bb8 Rg4 Bf3 Rc8 Qe2 Rcc4 d8B+ Kd7 Bdc7 Rcd4 Bg3 Ke7 Ne1 Nc2 Qe5 Na1 Nc2 Kd7 Ke3 Ke7 d6+ Kd7 Re1 Bd5 Bh1 Kc6 Qe6 Kb5 Re2 Bc4 Rf2 Qe8 Rf4 Qc6 Rf5+ Qd5 Rg5 Kc6 Rg8 Kb5 Rd8 Qdg2 Ne1 Qb2 Nc2 Qa2 Nb2 Kb6 Bc6 Kc5 Na4+
1b1b1r1R/Qp5K/1Pr2B2/R1n2Q1N/3n2b1/1qB5/P2Rpq2/NNkN2rb b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 a6 h4 gxh4 b4 Kd7 b5 Ke8 b6 Bd7 Be2 Bc8 Bb5+ axb5 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 g4 e5 d6 c5 f6 h5 d7 c4 f7 c3 Ne2 h3 Qa4 h2 Qa7 c2 Nec3 h4 Nd1 b4 Bb2 c1B d4 b3 d5 h3 d6 Bh6 f8N Qf6 d8R Na6 d7 Ne7 Bc3 b2 f3 Nc6 f4+ Kh4 f5 Kg3 g5 Bf4 g6 Nd4 g7 Bhg5 g8N Rh6 Re1 h1R Ne6 h2 Nc5 Rg1 Nb3 Rb8 Rf1 h1B+ Rf3+ Kg2 Rf8 Qf7 d8B Rc6 f6 Bg4 Rf1 Bg3 Rf5 Rbc8 Re8 Qf8 f7 Nc5+ Kd5 e4 Nf6 e3 Nh5 e2 Bf6 Bb8 Rd8 Qe8 f8Q Qe3 Rd6 Qf2 Ke5 Kf1 Qf7 R6c7 Rd8 Bh4 Rh8 Rf8 Qd5 Bg5 Qf3 Bh4 Kf4 Rc6+ Re5 Bg3+ Kg5 Bh4+ Kh6 Bg5+ Kh7 Bh4 Na3 b1Q+ Qf5 Qd3 Rc1 Qc4 Na1 Qb3 Nb1 Bg5 Bb2 Ke1 Rd5 Bh4 Rc4 Bg5 Ra4 Bh4 Ra5 Bg5 Na3 Kd2 Bc3+ Kc1 Nb1 Bh4 Bg7 Bd8 Bf6 Nf3 Rd3 Nd4 Rd2
Nrq1bR2/1pr2pkB/1Pr3rP/b4BR1/QQn2q2/b6R/Nn1B4/1K2B3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 exf4 c4 d5 cxd5 Ra6 b5 Ra7 Qa4 Ra8 Qb4 axb4 Kd1 c5 Kc2 g5 h4 f3 a4 g4 e4 f2 d4 c4 a5 c3 b6 g3 d6 g2 d7+ Ke7 e5 Na6 d5 Qe8 d8R Ra7 e6 Kf6 e7 Qd7 e8B Kg7 h6+ Kf6 h7 Ra8 h5 Bd6 Rh3 Qc7 Bd2 Nc5 a6 Nd3 a7 Ne7 Ne2 g1R Nc1 Bd7 Ra5 Kg7 Na2 Nc6 Na3 b3+ Kb1 b2 Nb5 Rb8 a8Q Ba3 d6 Qc8 Nc7 Rg6 Rg5 Nce5 Qa4 Nc4 Na8 Bb4 Bg2 Ba5 Be4 f1Q+ Be1 Bb5 Bd7 Qf4 Bdf5 Be8 d7 Rf8 Kc2 b1R h8B+ Kh6 Bd4 Ndb2 Be3 Kg7 Bc1 Rh8 Bcd2 Rh6 Bd3 Qc6 Rc8 Qcc7 d8Q Rc1+ Kb3 c2 Qd6 Qc6 Qdb4 Qc5 Rd8 Qc8 Kc3 Rb1 Kb3 c1B Kc2 Ra1 Nc3 Ra3 Na2 Rc3+ Kb1 Bd7 Rf8 Be8 Bd7 Rc2 Rb5 Rc6 Bh7 Rhg6 Re5 Nd3 Rg5 Ba3 Bf5 Ndb2 Bc1 Re2 Bcd2 Re7 Qd1 Rd7 Qda4 Rdc7 h6+
nQ2n1Nq/Bpp2nb1/2kQ4/1rP5/Q3nQ2/1N1PB3/NbK1brR1/4R1q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 e4 d5 exd5 g6 f5 Bd7 Be2 Be6 fxg6 Bd7 g5 Bc8 Bg4 hxg4 c4 Kd7 a4 e5 h4 f5 h5 b3 d3 b2 Kd2 f4 h6 f3 g7 f2 h7 f1N+ Kc2 g3 d6 e4 g6 g2 a5 e3 a6 e2 a7 e1B Bg5 Kc6 d7 Nf6 g8N Bc3 g7 Nh2 Qf1 Nf3 Be3 Ng5 Nf3 g1Q Ra2 Ne8 Nfd2 Nf7 Qf4 Bd4 Nc3 b1N Nb3 Nd2 Rb2 Ne4 Na2 Qf6 d8Q Nd7 Qe7 Nb6 Qd8 Rb8 a8Q Bg4 Qa3 Na8 Qa4+ Kb6 Qe7 Be2 Qed7 Rd8 Qe7 Rd5 Qed7 Qg4 Re1 Rb5 Qd8 Kc6 Qe7 Bc3 Ba7 Qff5 c5 Qg1 Qd8 Qh3 Qdf6+ Kd7 Q6d6+ Kc8 Qad4 Bf1 Kd1 N8f6 Nh6 Qh4 Rbe2 Bb2 g8Q Qh3 Rh2 Be2+ Kc2 Qh5 Qa4 Qe5 Qgg5 Ne8 Qgf6 Rg8 h8B Rg2 Ng8 Rf2 Rg2 Qh5 Bg7 Qhh2 Qfe7 Qh8 Bd4 Bg7 Qef6 Nh6 Be3 Nf7 Qde5 Kd7 Qd8+ Kc6 Qb8 Bh6 Qed4 Bg7 Qdd6+
K3bq2/PRb3B1/N3k1p1/q1nP4/1NN5/QrrR2pr/2n5/QN1B1rnB b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Ke3 c5 Ke4 b5 h4 f6 a4 g3 d4 c4 a5 c3 a6 g6 h5 c2 a7 b3 d6 b4 Kd5 b2 e4 f5 h6 b3 e6+ Ke8 h7 f4 d7+ Ke7 e5 f3 Bg2 f2 Nf3 f1R Ra3 Bh6 Nfd2 Rf4 Nc4 Na6 Kc6 Qf8 d8N Bd7+ Kb7 Rc8 Nc6+ Ke8 e7 Kf7 e8B+ Ke6 Qf1 Nf6 Nb4 Ne4 Bf3 Rf7 Bd1 Bf4 Rh5 Rc7+ Ka8 Nec5 Be3 c1N Qe1 Ke7 e6 Ne2 Rf5 Bd6 Bh6 Ng1 Bg7 Rf6 Re5 Rf1 Re3 Rc6 Rd3 Bb8 Bf7 Be8 Ra5 Bc7 Rb5 Rd6 Rb7 Rc6 Ne3 Kd6 e7 Kd7 Bd5 Kd6 Nbc2 Nb4 Bh1 Ke6 Nc4+ Ne4 N2e3 Nc2 Nd5 Rc5 Qa5 Rc6 Qa3 Nc5 Nbc3 b1R Nb4 b2 Qa1 Rc1 Nb1 Rb6 Qa3 Ne1 Qa1 Rc3 Qa3 Nc2 Qa1 Rg8 h8Q Rb5 Qh6 Rh8 Qc1 Rh3 Qa3 Bc6+ e8N Rb6 Nbd2 b1Q Qcb2 Qa2 Nb1 Qb3 Qba2 Qa4 Qa1 Qa5 Na6 Qf7 Nf6 Rbb3 Nd5 Be8 Ndb4 Qf8 d5+
b4NNQ/P1R1q1Q1/2n1p3/3nr1kB/3QQ1r1/2b3pB/bq2P2r/Rb1K1B2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h6 g6 Kd7 g7 Ra6 g5 Rh7 g6 Rh8 Bb2 Ke8 Bf6 Ra8 Bg5 hxg5 h4 b5 a4 c5 d4 f5 h5 c4 d6 g4 h6 f4 d5 c3 a5 g3 a6 f3 a7 c2 h7 c1Q Nd2 b3 Nh3 b4 Nf4 b2 Ne6 b1B Ne4 Qb2 Qc2 b3 Kd1 Nf6 g8B f2 g7 Ba2 Bf7+ Kd7 g8B Bg7 Rh6 Nc6 Bh5 Bb7 Qb1 Qc7 Nf8+ Kd8 d7 e6 Bgf7 Ke7 Bg4 Re8 Bfh5 Ba8 Bgh3 Rb8 Rg6 Rb5 d8Q+ Kf7 d6 Re5 d7 Nd5 Qc8 Qd8 Qc7 Qe7 d8Q Bf6 Nc3 Bg7 Rg4+ Kf6 Rc4 Kg5 Qe4 Rg8 h8Q Bf6 Na4 Rg6 Nc5 Rh6 Bg6 Rh4 Ncd7 Rg4 Bh5 Bg7 Rc2 Bf6 Bfg2 Bg7 Nf6 f1R+ Kd2 Rh1 Ng8 Rh2 Kd1 Bf6 Bf1 Qba3 Qdb8 b2 Qb3 b1B Kd2 Qf7 Qhh7 Na5 Qd7 Be7 Qba4 Bb4+ Kd1 Qb2 Rc7 Nc6 Qh8 Bc3 Qad4 Qf6 Qf7 Qe7 Qfg7+
1N1nb2k/P1nQK2p/Q3RRq1/r2Nr3/3B1B1P/2p2nR1/1r1n2q1/b1R2N2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 g6 f6 Qd6 f7+ Kd8 f5 Kd7 f6 Ra7 Bd3 Ra8 Bf5+ gxf5 Qe2 Kd8 Qf3 Qd7 Qf1 Qe8 Qe2 Kd7 Qd1 Qd8 Ke2 c5 Kd3 e5 Kc4 f4 d4 b6 g4 b3 h4 e4 a4 b2 d6 Ke6 d5+ Ke5 g5 f3 a5 f2 d7 f1N a6 e3 g6 e2 d6 e1N g7 Nh6 g8R Bg7 f8Q Nf7 Nd2 b1Q Ne2 Qg6 Nc3 Nf3 Nd5 Qc7 d8R Qb7 d7 Kf5 Kb5 c4 Re8 Nd8 f7 Ra7 Ra4 Ba1 Qh6 c3 f8N Qbc6+ Kb4 b5 Re6 Qb7 Kc5 b4 Kd6 b3 Rg7 b2 Ke7 b1R Rb4 Qc6 Rb6 Rb2 Rg8 Qg2 Rg3 Rg8 Qa4 Rg5 Qd1 Ra8 a7 Na6 Qa4 Nc7 Qa6 Rb8 Qg7 Ra2 Qd4 Ra5 Qa4 Qb7 Rbc6 Qb1 Rg1 Rb2 Q4b5 Nf7 d8B Bd7 Rh1 Be8 Nd7 Qe4 Nb8 Qg4 Qa4 Qh5 Rb6 Qg6 Qd7 Rh5 Kf8 Rg5 Bf6 Nd8 Ke7 Rh5 Bd4 Rg5 Nb3 N1d2 Rd1 Rg4 Rde1 Re4 Rc6 Re5 Rd1 Nf1 Bf4 N1d2 Rc1 Qg5+ Nf6 Kg6 Rb6 Qg4 Nd5+ Kg7 Rd6 Qg6 Rb6 Ne4 Nd2 Kh8 Nf1 Ned2 Kf8 Nb7 Rf6 Nd8 Rbe6 Qg8+ Ke7 Qf7+ Kd6 Qg6 Ke7
k1BQr1qB/PbpNnP1q/1RQ1r3/1Q5p/q3R3/1bnN1Q1K/3B3b/7q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 g4 e5 f4 b5 Kf2 h5 Kg2 e4 a4 b3 f6 b2 f7 b4 g5 b3 d6 Kc6 a5 Kb7 d7 e3 d5 e2 f5 e1Q g6 Rh6 a6+ Ka7 f6 Qde7 d8Q Nd7 g7 Rh8 d6 Ne5 d7 Qe6 Bd2 Qe7 Qc2 Qd1 Nc3 b1Q Nce2 b2 Ra4 Nd3 Re4 Nc5 Nf3 Qe6 Nf4 Ne7 g8Q Rh6 Nd3 Bb7 Qg5 Na4 Qc6 Nc3 Qgb5 Qa4 Nfe5 h3+ Kg3 h2 Bh3 Bg7 f8Q Qg8 f7 Qbc2 Rb1 Re6 Bg4 Bh6 Kh3 Bf4 Qg7 h1B Qf6 Bh2 Qf3 Rc8 Bf5 Ka8 a7 Rb8 Qc8 Qd1 d8B Qdg1 Nd7 Bg2+ Kh4 Qh1 Bh3 Bf1 Bf5 Be2 Kh3 Bd1 Bg4 Bb3 Bf5 Ned5 Bf6 Ne7 Qd8 Rc8 Bh8 Rb8 Rf1 b1Q Rf2 Qbg1 Rf1 Qh7 Rb1 Qgg8 Qba6 Bd1 Rb6 Bb3 Qab5 Qgg6 Qg8 Rd6 N7c5 Rc8 Bd7 Re6 Qe8 Rd8 Bc8 Qgg8 Qed7 Rf8 Qd8 Re8 Nd7
2b2n2/p3n1n1/1rP2RQ1/1N1NbRq1/N5rk/p1N3n1/B1Prq3/1QKBB3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 dxc5 gxh4 Kd2 Kf7 f4 Kf6 g4 d5 b4 h5 b5 e5 c6 e4 g5+ Kf7 g6+ Kf6 b6 d4 b7 h3 g7 d3 Qg4 h2 Ne2 h4 Nd4 a3 Nb5 h3 Be2 Qe7 Rf1 h1N Bd1 h2 N1c3 Nd7 b8Q Ng3 Bb2 h1N Kc1 e3 Rf3 Nh6 g8B e2 Ba2 e1Q Qb6 Qc5 Rf1 Nh5 Qg6+ Ke7 Qb7 Qe2 Rb1 Qd5 f6+ Ke6 Rf2 Ng7 f5+ Ke5 f7 Bd6 f8N Rg8 f6 Ng3 f7 Nhf5 Rf1 Ne7 Ne6 Nf8 Rf6 Rb8 Nec7 Qc5 N7d5 Qg1 Qc7 Rb6 Qb8 Bc7 Ba1 Qgg2 Rb4 Qg1 Rbf4 d2+ Kb1 Qge3 Rf1 Qg5 Bb2 Nh7 f8N Bd6 Ne6 Nf8 Ned4 Bc7 Na4 Bd6 R1f5+ Ke4 Ne6 Be5 Nef4 Kf3 Bc3 Kg4 Ba5 Kh4 Ndc3 Rh8 Nfd5 Rh6 Qf7 Rg6 Qe8 Qge3 Bb4 Rg4 Qg6 Qg1 Bc5 Qgg2 Bf2 Qg1 Be1 Qge3 Qe8 Qg5 Qg6 Rf4 Qd6 Kg4 Qb4 Kh4 Qb2 Rg4 Qa1 Qh2 Bf3 Qg2 Qb2 d1R+ Qc1 Rd3 Bd1 Qe2 Qb2 Rd2 Kc1 Nge6 Qb3 Ng7 Qb1
k1B5/prbNR1b1/PQ1Rpr2/n2b1BNQ/K1bq4/6q1/2Q2PQ1/1n2Nq2 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 f5 gxf5 h6 Bb2 Rh7 Bf6 Rh8 Bg5 hxg5 d4 Kd7 Kd2 Kc7 Kc3 b5 Kb3 Kb7 c4 e6 a4 e3 h4 g6 a5 g4 h5 b4 h6 g3 d5 g5 d6 g2 d7 e2 h7 e1B f6 g4 f7 g3 Bd3 Ne7 Na3 Bh6 f8N Nd5 Nh3 g1Q Qf3 g2 Rd1 Nc6 Bf5 Rb8 a6+ Ka8 Ka4 b3 Ng5 b2 Nc2 Na5 c6 b1B c5 Bg7 c7 Bb7 c8B Qf1 c6 g1Q c7 Ba2 Qg2 Bc4 Rh3 Bd2 Ne1 Bf4 Rd2 Qf6 d8Q Qd4 Nd7 Rf8 h8Q Rf6 Rh7 Qh2 Qhe8 Qg3 Qh5 Nc3+ Ka3 Qb6 Rd6 Qd4 Kb4 Nb1 Ka4 Bf8 Re7 Bbd5 Qd1 Rb7 Qc2 Qgc3 Qe8 Qce3 Qh5 Qg3 Qb2 Bh6 Qb6 Bg7 Rc6 Qg1 Ne5 Rb8 Bd7 Qf1 c8Q Ba2+ Qb4 Qdc3 Qb6 Qcd3 Qcc7 Rb7 Bc8 Qc3 Nd7 Qd4+ Qb4 Bd6 Qc4 Be5 Qb6 Bc7 Rd6 Bb3+ Kb5 Ba2 Qd3 Bac4+ Ka4 Bd8 Qdb3 Bc7 Qc2
2b1n2r/p3Qn1P/1pR2B1B/2Qb2q1/B1NRq3/b3PB2/1b2K3/Rk1r1N1q b - - 0 1 illegal: No proof kernel
nkbB1rrq/2rQR3/3PQ2r/3Rpr2/B1N1BQ2/5nb1/PKN2p2/5rQ1 b - - 0 1 illegal: No proof kernel
r3r1r1/3kPB2/R3RB2/3p1Q2/1pr2b1K/N1N2rnb/q1P1RB1Q/3Br1n1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 g5 Kg3 f5 a4 d5 h4 b5 e4 d3 a5 b3 h6 g4 e6 d2 e5 b2 e7 b4 a6 Qb6 h5 f4+ Kh4 f3 a7 g3 h7 f2 h6 g2 Na3 b1R Ne2 g1R Rh2 Nf6 Nc3 Qa6 Qh5+ Kd7 Be2 d1R Be3 f1R Bf2 Ne4 e8R Rhg8 h8Q Nc6 h7 Rd4 Re6 Rbe1 Qf5 Bh6 Bd1 Re8 Ra2 Rgg8 Ra1 Rb8 a8B Rc4 Rg2 Nd4 Bc6+ Kc7 Bd7 Bf4 Bc6 Ng3 Bb5 Re7 Be8 Ra8 Bf7 Ree8 Rg6 Nh1 Bg1 Rf2 Nab5+ Kd8 e6 Bg3+ Kg4 Rc6 Qg5+ Rf6 Re2 Nf3 Bf2 Ng1 Rh6 Qb6 Ra6 Rc4+ Kh5 Qa5 e7+ Kd7 Qg6 Qa2 Na3 Rf3 Qe5 Bh2 h8B Bg3 Qh7 Bf4 Qg5 Kc7 Bg7 Bh3 Qgf5 Bf1 Rhe6 Ng3+ Kg4 Kd7 Qh2 Bg2 Kh4 Bh3 Bf6
1Qbb1b2/1b2PR2/2bR3p/nr2N3/kP4N1/b2Qq3/pBRrB3/1B1nK1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 Kd7 e4 f5 b4 c5 d4 a5 b6 Kc6 e5 Kb5 d5 h6 e6 a4 b7 a3 g6 a2 g7 f3 d6 f2+ Kd2 f4 d7 f3 g5 Nc6 b8R+ Qb6 d8Q Nge7 g8B Na5 g6 Nf5 g7 Ne3 Bg2 f1B Rh5 f2 Bf3 Bg2 Rb7 f1B Nh3 c3+ Ke1 c2 Q1d3+ Ka4 Rd5 c4 Bh7 c3 g8R Nd1 Nf2 Rb8 Rd6 Qe3+ Be2 Bc6 Bb2 c1B Rf7 c2 Nd2 Bfg2 Ng4 Rb5 Nc4 B6b7 Rg5 Bgc6 Rc5 Rg8 Nce5 Rh8 Bd4 Ba3 Bb2 c1B Rc2 Rg8 Qc7 Rg5 Qb8 Rf5 Rb1 Rf2 Ba1 Bcb2 e7 Bd4 Be4 Bb6 Bb2 Bd8 Qc4 Qd4 Bf1 Qe3+ Re2 Qh3 Kd2 Bb6 Rc1 Qf3 Bb1 Ne3 Qd3 Bd8 Rc2 Qe4 Ke1 Nd1 Re3 Rd2 Be2 Qf4 Rg3 Qe3 Rg1
rrn1b1K1/N3p3/3N2k1/2Q1Pnqn/b2Q1B2/p3PRn1/N1B1B1R1/n4N1n b - - 0 1 legal: proof: d4 g5 h4 gxh4 a4 b5 axb5 c5 e3 Bh6 e4 Be3 fxe3 cxd4 Kf2 d5 Kf3 h5 Kf4 a5 Kg5 f5 Kg6 a4 Kg7 d3 g4 d4 b4 d2 c4 h3 g5 h2 g6 f4 c5 f3 c6 d3 c7 h4 b6 h3 b5 a3 b7 f2 b6 Bg4 c8N Bd7 Be2 f1N Nc3 Ng3 Ra2 Nc6 b8N Na7 b7 Qa5 Bb2 Qg5 Nf3 Nh6 Rf1 h1N Nc6 h2 b8Q Rf8 Qc1 d1B Nd2 Ba4 Rf3 Nhf5+ Kh7 Rg8 g7 Kf7 Qb6 Nh5 Qd4 Be8 Nf1 d2 Ba1 d1N Nd6+ Ke6 Rb2 Ndf2 Na2 N1g3 Qcc5 Nc8 Na7 h1N Rc2 Rf8 Bb2 Nd3 g8B+ Bf7 Bc3 Nb4 e5 Rd8 Be1 Re8 Rb2 Nc2 Bf2 Na1 Rd2 Ne4 Bg3 Rd8 Bf4 Neg3 Kh8 Rb8 Ne8 Ra8 Bh7 Bg6 Rb2 Kf7 Rc2 Rd7 Rd2 Rb7 Rc2 Rbb8 Nd6+ Ke6 Rb2 Bge8 Bg6 Nfg7 Bc2 N7f5 Ne4 Kf7 Nd6+ Kg6 Kg8 Qh4 Bb1 Qg4 Rd2 Qg5 Bc2 Bac6 Bed3 Bb5 Rg2 Ba4 Be2
bQN5/b1Pnnq1Q/1n6/1rn5/2R2rnR/5B2/NpPpQB2/3NNknK b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 gxh4 a4 Kf7 g4 Kf6 f4 b5 Kf2 d5 Kg2 e5 c6 h5 c7 d4 a5 b3 a6 e4 a7 d3 Ra5 b2 Rh2 b4 Bd2 h3+ Kh1 e3 Qf3 h4 Qe2 b3 Bg2 Bb7 Qd1 e2 Ra4 e1N Bc6 Qd7 Bb4 d2 Ra6 Bc5 Ra4 Rh5 Nf3 Nd3 Ne1 Ne7 Nc3 b1N Na2 b2 Bf3 Nc3 Qe2 Ncd5 Ba5 Nb6 Rc4 Qe8 Bb4 Bf2 Bc5 Qf7 Be3 N8d7 g5+ Kg7 f6+ Kg6 Bd4 Kf5 g6 N3c5 g7 Rf8 g8Q Ba8 Qh8 Bg1 Bf2 Rg5 Rg2 h2 Rg4 Kg6 Qg8+ Kh5 Qg7 Rd5 f5 Re5 Ng2 Rd5 Ne3 Re5 Nd1 Rd5 Kg2 h1N Qg8 Ng3 Rgf4+ Kh6 Qh7+ Kg5 Rfd4 Ne6 Rf4 Rb5 Rfe4 Nec5 Red4 Nge4 Kh1 Nc3 Rf4 h3 Rh4 Qg6 f7 h2 f6 Qg8 Qe1 Ne2 Qf1 Nf4 Qe2 Nh3 Be1 Bd4 Bg3 Ng1 Bf2 Rc8 f8N Qf7 Ng6 Rf8 Nf4 Be3 Kg2 h1N Nd3 Bd4 Ne1 Be3 Bg3 Nf2 Kh2 Ng4+ Kh1 Be4 Bf2 Kf4 a8Q Bd4 Be3+ Kg3 Qb8 Qh5 f7 Ba8 Qh8 Re8 f8N Qf7 Ng6 Rf8 Bc6 Qg8 Bg2 Rf4 Bf3 Qf7 Qh7 Na6 Ne5 Nbd5 Rc3 Ba7 Nc4 Nac5 Nd6 N5b6 Bd4 Nh2 Rc4 Ng4 Qee4 Ne3 Nc8 Ng4 Ne3 Kf2 Nd1+ Kf1 Bf2 Ne6 Qe3 Nec5 Qe2+
k3K2b/pN2R2B/N2B4/N1pr1n2/1bbQnRQ1/Q3P1bb/P1b2Nq1/5r2 b - - 0 1 legal: proof: g4 e5 c4 h5 f4 hxg4 fxe5 Na6 c5 Nb8 b4 c6 b5 d6 bxc6 dxc5 Kf2 f5 Ke3 g5 d4 b5 h4 f4+ Ke4 b4 d5 b3 e3 b2 h5 f3 e6 g3 Kf5 g2 Kg6 f2 h6 g4 e7 g3 h7 Nd7 c7 Ndf6 d6 Kd7 Kf7 Kc6 e8N Kb7 d7 Ne4 Qa4 Ne7 Nd2 b1B Nc4 Bg7 Nh3 g1B Qa3 g2 Bb2 Bh2 Bd3 g1B Be5 f1B Nf2 Nf5 Bd6 Bc2 Rd1 Bg3 Rh4 Bd4 Rf4 Qg5 Rd2 Rb8 d8N+ Ka8 Na5 Rb1 Ndb7 Bc3 Rd1 Bb4 Rd2 Rg8 h8Q B1h2 Qd4 Qg4 Rd1 Rg5 Kf8 Be2 Rh1 Rf1 Kf7 Bg1 Rh7 B1h2 Kf8 Qh3 Re7 Qg2 Kf7 Nh4 Kf8 Bh3 Kf7 Rd5 Kf8 Nf6 Bh7 Nf5 Kf7 Bc4 Kf8 Bh4 Kf7 B2g3 Kf8 Nd7+ Kf7 Bf6 c8Q+ Nb8 Qd7 Bh8 Qda4 Nd7 Nc7+ Kb8 Na6+ Ka8 Ke8 Nf6+ Kf8 Ne4 Ke8 Bb1 Qad1 Bc2 Qg4
4QBrb/B1bb1R2/3RR1n1/1rb1n1kB/N5q1/3pP2N/1n1P1pB1/K3Qn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 c4 Ke7 h4 Kf6 e3 d5 b6 a5 c6 g5 c7 g3 c5 a4 b7 g2 h5 f3 c6 d4 h6 f2+ Ke2 g4 Kd3 a3 Kc2 a2 Kb2 g3 h7 d3 Na3 Kg5 Rh2 f5 Nb1 f4 Rh4 f3 Be2 f1N Ra4 f2 Nc3 Bc5 Rf4 Na6 b8B Bd7 c8B Ne7 c7 Ng6 Na4 Rg8 Bb7 Qc8 Ba7 Rb8 Rb1 a1B+ Ka2 Bc3 h8Q Ba1 Bh5 Bg7 Be4 Rb5 Qe1 Bgd4 Rf7 Bc3 Ne2 g1B Ba3 g2 Nf4 Bh2 Rb2 g1N Ka1 Bf6 Bg2 Nf3 Bb4 Nfe5 Ba3 Qe8 c8R Qe6 Rc6 Qg4 Re6 Bg3 Qg7 Bh2 Qf8 Bh8 Bb4 Be7 Rc2 Nc5 Qe8 Bd6 Rc4 Bf8 Rd4 Bd6 Nb2 Na4 Ba3 Bc5 Rdd6 Nb6 Na4 Nbc4 Bb4 Nb2 Nh3+ Kh4 Qc1 Nc6 Rd4 Bc7 Rg7 B5b6 Bf8 Nce5 Rdd6 Bd4 Qe1 Bc5 Ng1 Kg5 Rge7 Kf5 Rf7+ Kg5 Nh3+
k1Q1Rn1n/2BQ4/1K2b3/PP6/3B2bp/1RbR1r1R/Bq2nNbp/1rn1N3 b - - 0 1 illegal: No proof kernel
2b1K3/2krB1NQ/bn2P3/bBpn1N1r/n2R4/RQq5/bnP1pN1N/3B4 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 h5 Ke3 c5 Kf4 d5 g4 Kd7 Kf5 a5 Kg6 e3 Kf7 h3 b4 h2 f4 h4 g5 a4 b6 d4 g6 h3 g7 a3 b5 d3 f5 a2 f6 d2 b7 Qa5 b6 Kd8 Qh5 d1N Nf3 Ra7 Bb5 Nd7 b8Q Rh6 b7 Nb2 Nbd2 Be7 Ne4 Nb6 Nf2 N2a4 Rd1+ Bd6 Qg6 h1B Rd4 h2 Qh7 Ne7 g8B Rh5 Kf8 Qb4 Bgc4 Qc3 Be2 Ned5+ Kf7 Bg2 Bd1 h1B Nh2 e2 Bg5 Bc7 Kf8 Bh3 Kf7 Bd7 Kf8 Bc6 f7+ Kd7 Bd8 Be4 Be7 Bd3 Rb1 a1N Rb3 Bc4 Ra3 Nb3 Qa8 Nc1 b8N+ Ke6 Qb7 B6d7 Nc6 Ba2 Qb8 Ba6 Qb7 Bc8 Ke8 Nd3 Qb8 N5f4 Qb7 Ndb2 Qb8 Ng6 Qb7 Bd8 Qb8 Rd7 f8N+ Kf5 Ne6 Bc7 Qh8 Nf4 Qb7 Nfd5 Ng7+ Kg6 e6 Bd8 Bd6 Kf6 Qh7 Bc7 Bf8 Bd8 Ne7 Ke5 Qa8 Kd6 Nef5+ Kc7 Be7 Bab7 Qa5 Ba6 Qb4 N6c4 Qa5+ Kb8 Qb4 Ba5 Ne4 Kc7 Qb3 Ncb6 Nf2
1N1N4/5R2/2rpPNk1/3K1bb1/QbBn2Pr/5n2/q1pQrb1Q/2rNR1B1 b - - 0 1 illegal: No proof kernel
r3n1bb/2NQq3/1PRp1R1B/2Q2BBQ/5n1r/1Np4b/P3r2b/1B1rk2K b - - 0 1 illegal: No proof kernel
1r2b1NQ/1rBNb2n/qp6/1NR1R3/p1KB1RR1/rrbP3n/Pk4Q1/6b1 b - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g6 f5 Qd5 Be2 Qd6 fxg6 Qd5 g5 Qd8 Bg4 hxg4 Ke2 Kd7 c4 Ke6 h4 Ke5 d3 Kd4 g7 a5 c6 f5 c5 e5 h5 f4 c7 b6 h6 f3+ Kd2 e3+ Kc2 e4 Kb3 e2 g6 e1R c6 g3 h7 g2 Na3 e3 Rh5 e2 Rb1 f2 Rb5 f1R Qd2 Be7 Rg5 Rf7 Rb2 Bd7 c8R Be8 c7 Nc6 Re5 Nf6 g8N Nb4 g7 Nbd5 Qg5 Qd7 Bf4 Rb1 Bh2 e1B Nf3+ Kc5 Nb5 g1B Qg6 Bc3 Qg2 Qc6 Bf4 Qb7 Bh2 Qa6 Bf4 Kc6 Kc4 Ra7 Bg3 Nf4 Rb4 Nh3 Bh2 Rb3 Ra4 Bd7 Rf8 Be8 c8R+ Kd7 Rcc5 Rb7 Red5+ Ke6 Bc7 Ra7 Ne5 Kf5 Bd6 Kf4 Nd7+ Ke3 Bc7 Rb7 Qf3+ Kd2 Re5 Kc2 Qg2+ Kb1 Nh6 Rg8 h8B Nh7 Rb4 Rf5 Rf7 Rf8 g8Q Rg5 Rf4 a4 Qh1 Kb2 Qg6 Rg2 Ng8 Rc2 Qg5 Bh5 Qhg2 Rfb8 Qh6 Be8 Bf6 Kc1 Qhg7 Ra3 Qh8 Rb2 Kd5 Kb1 Rbd4 Kc1 Kc4 Rbb3 Rg4 Kb1 Rdf4 Kc1 Reg5 Kb1 Bd4 Kc1 Rge5 Kb1 Bf2 Kb2 Bd4+
4bK2/NR1bR1n1/P6k/B1p1nNp1/B2r1R2/1Q2QPb1/bn1n4/3Qq1Qr b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 e5 Kc4 g5 a4 Kg7 h4 c5 d4 g3 h5 b6 f6+ Kh6 f3 g2 d6 b5+ Kd5 e4 f7 b3 a5 e3 d7 b4 Ke6 e2 a6 e1N d5 b2 d6 b3 Bb5 Nf6 Na3 b1B Ne2 g1N Ng3 b2 Nf5+ Kh7 h6 Qb6 Bd2 Nd3 Qb3 Qa5 Ba4 Ne2 Nb5 Ne4 Re1 Nc6 Na7 Ba2 Rab1 N2g3 Re3 Bg7 f8R Be5 Kf7 Nh5 d8Q Bg3 d7 Ng7 Qe8 Nce5+ Ke7 Qb4 d8Q Bd7 Rf7 Kg6 h7 Qa5 Bb4 Nd2 Re4 Rb8 Rf4 Rb6 Re1 b1B Re2 Nb2 Re3 Rg8 h8Q Rd6 Qh2 Rd4 Qg1 Rh8 Re2 Rh2 Kf8 Rh1 Qee6+ Kh5 Qbe3 Bd3 Qb3 B3b5 Re7 Be8 Rb7 Bbd7 Re1 Qb5 Ba5 Qf1 Re2 Kg6 Rh2 Qe1 Rh7 Nh5 Rf7 Ng7 Re7 Kh7 Qd1 Kg6 Qb6+ Kh7 Qbb3 Kg6 Nd6 Kh6 Nf5+
r7/1RB1P3/2NPb1R1/Q2BBp1k/1qR1B2b/1bbpN2K/rrn4Q/n4r2 b - - 0 1 illegal: No proof kernel
3r1B1k/3P1p1n/1bN2QB1/N1pK4/1Q3bbR/2q2Pr1/1bBN2r1/R1n2r1N b - - 0 1 legal: proof: d4 b5 c4 e5 g4 h5 a4 hxg4 axb5 d5 cxd5 exd4 Kd2 a5 Kd3 c5 Ke4 g5 b4 d3 h4 a4 h5 a3 d6 a2 h6 d2 b6 g3 b7 g2 b5 g4 h7 g3 b6 Qc7 f3 Na6 b8N Bg4 b7 Nb4 Nc6 Bh6 b8N Kf8 Rh4 Kg7 Nh3 g1R Qe1 d1R Nf2 g2 Nd2 Nd3 Kd5 Bf4 e4 Qa5 e5 Qc3 e6 Ra6 Bb2 Nc1 e7 Ra4 Na5 Nf6+ Kc6 Rd4 e8B Rg8 Nh1 Kh8 Bd3 Rg5 Qe4 Rdf1 Bc2 Rg8 Bd7 Rd8 Qe1 Rd5 Be6 Rg5 d7 Bc7 Bef5 Bb6 Qe4 Rg7 Bg6 Rgg8 Rb1 a1B Qb4 Rg7 Ba3 Bb2 Ra1 Rf2 Kd6 Rgf1 Nbc6 g1B Na7 Nh5 N7c6 Bh2+ Kd5 Bf4 Ra2 Ba1 Bb2 Rg2 Ra4 Qe3 Be5 Bb2 Bd6 Qc3 Bf8 Ng3 Bgf5 Ne4 Ra1 Ng5 Bg6 Rg3 Bgf5 Rg6 Bfd3 Re6 Bf5 Re2 Bg6 Reg2 Bh5 Ne2 Bd6 Kg7 Be7 Nc1 Bd6 Kh6 h8Q+ Nh7 Qhd4 Ra8 Qe5 Rd8 Qe6+ Kg7 Bf8+ Kg8 Bhg6 Kh8 Qf6+
1b1Q3N/2P1KQ1R/1R1Rb3/1b1p1r1B/3n1p1N/q1b2N1B/2kP1rr1/2n1r2N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ba3 Qb6 axb5 Qf6 b6 Qg5 b5 Qd8 Bb4 cxb4 Kf2 Ke7 Kf3 Kf6 Ke4 a5 Kd5 Kf5 h4 g5 c4 a4 e3 g4 c5 b3 b7 f3 c6 g3 b6 a3 h6 b2 h5 g2 h7 f2 h6 a2 Rh2 Na6 b8R Bd6 b7 Nc5 Nc3 b1R Qb3 Ra5 Ne4 Re1 Nf3 g1R Bh3+ Rg4 Rb1 f1B Nf2 a1B Nh1 Bc3 e4+ Kf4 e5 f5 e6 Qf8 e7 Bb5 e8B Rg2 Ra8 Bb8 c7 Nd3 Bh5 Ne7+ Kd6 Ke4 Ra6 f4 Qf7 Nc1 Rc6 Rhg8 h8N Kd3 h7 Kc2 Ng6 Rf2 Ngh4 Rgg2 h8N Nf5+ Kd5 Ref1 Rd6 Nd4 Ke5 Re1+ Kf6 Ba4 Rbb6 Bb5 Rd5 Qa3 Rdd6 Be2 Ke7 Rc5 Rf6 d6 Rh6 Rf5 Rg6 d5+ Rgd6 Ba7 b8Q Be6 Qd8 Bb8 Rb7 Bb5 Rb6 Rg4 Rg2 Rg7 Rg6 Rg8 Rh6 Rgg2 Rh7
kNR1bb2/Np5B/2Q2nP1/4p1R1/1q2nBr1/1Q3K1R/Q3PbnQ/nr2b3 b - - 0 1 legal: proof: f4 a5 c4 h5 b4 d5 cxd5 axb4 g4 g5 fxg5 hxg4 Kf2 Kd7 a4 f5 h4 e5 d4 c5 g6 Kc7 a5 f4 h5 f3 h6 b3 a6 b2 h7 c4 a7 c3 Bg2 c2 Rh3 Na6 Na3 b1N Bf4 c1B Qb3 Nb4 d6+ Kb6 d5 Nd2 d7 g3+ Ke3 f2 d6 Qe7 d8R Nf6 d7 Nde4+ Kf3 f1N Nb5 Ne3 Re8 Nbc2 d8Q+ Qc7 Qd7 Qc4 Qd5 Bd7 Rc8 Bd2 Rd1 Na1 Qc6+ Ka5 Bh1 g2 Rf1 Qb4 Rf2 Rg8 h8Q Be8 Qh4 Be1 Qg3 Rh8 Qh2 Rb8 Rf1 Rh4 Rf2 Nc5 Rf1 Rg4 a8Q+ Na6 Na7 Nc5 Rh5 Nce4 Rg5 Bg3 Rd1 Bh4 Rd3 Be1 Nh3 g1B Nf2 Ng2 Re3 Ng8 Nd3 Ngf6 Nc5 Bgf2 Na6 Qc4 Rc7 Rc8 Nb8 Qb4 Rc3 Rd8 Rc8 Rd1 Rd3 Ne3 Bg2 Rb1 Bh3 Ng2 Rc3 Rh4 Be6 Rg4 Bd5 Qc5 Bg8 Qb4 Qcc4 Kb6 Bh7 Nd5 Rd3 Ndf6 Qc6+ Ka5 Nb5+ Ba7 Qg3 Bc3 Rd1 Bd2 Rh1 Be1 Na6 Bb6 Rh3 Bg1 Qh2 Bgf2 Qcd5 Kb6 Nb8 Bd2 Qaa2 Bde1 Na3 Ka7 Qc6 Ka8 Nb5+ Qa3 Na7 Qb2 Qbc2 Qb4 Qcb3
kr1r2bn/PBn2r1P/nB1p1QQ1/r1N1R3/3b2RK/2n1N3/2pB4/4RqB1 b - - 0 1 illegal: No proof kernel
2q1n1rn/RQ1q3n/2QkN2n/B2Br3/3R2p1/2PB2P1/1NKp2q1/2bN1Nn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 Bd2 Bb7 Be3 Be4 Bc1 Bg6 hxg6 Be7 Nd2 Bd6 Nb1 Bf8 Kd2 Ke7 b4 h5 e4 d5 e5 a5 e6 f5 c3 a4 g3 h4 b6 a3 b5 a2 b7 h3 b6 h2 g7 f3 Qb3 f4 Qc2 f2 Bd3 f1Q Qd1 f3 Qb3 g4 Be4 f2 Bf3 d3 Qa4 d4 Be4 Nh6 g8B Qc8 Bc6 Qg2 Nf3 f1N+ Kd1 d2 Be4 Nd7 b8Q Ra5 b7 Nf6 Nh4 Ne8 Bd3 Re5 Qc6 Nf7 Kc2 d1N+ Nd2 Nf2 Qbc7+ Qd7 b8N Ne4 Q7b7 Neg5 Na6 Nh7 Nb4 Bh6 Ba3 Bg5 Rd1 a1Q Rg1 h1N Nf5+ Kf6 Ne3 Nf2 Rh1 Nh3 Rh2 Ng1 e7+ Ned6 e8N+ Ke7 Ng7 Ne8 Ne6 Bh6 Bb2 Qa8 Ba3 Qc8 Ra1 Bg5 Nd1 Bf4 Rh6 Be3 Rf6 Bg5 Rf4 Ne3+ Kb1 Nf5 Nf1 N5h6 Re4 Ne2 Kc2 Bc1 Nb2 Kf6 Nd5+ Kf5 Nde3+ Kf6 Nd2 Ng1 Ned1 Kf5 Bc5 Kf6 Bb6 Ke7 Qb5 Kd6 Ra7 Qa8 Ba5 Qad8 Be2 Q8c8 Nf1 d3+ Kb1 d2 Kc2 Nd8 Bf7 Rg8 Bd3 Nc6 Qa4 Ne7 Qab5 Ng6 Q5c6+ Ke7 Rd4 Nh8 Ng7 Ng6 Bd5 Nh8 Qa4 Kd6 Ne6 Qc5 Qc4 Qcc8 Qcc6+
rB2q3/2KR2rn/Nn3QPQ/b1kp2q1/B2q2pB/n1n2nP1/1QQR4/5N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 Bd2 Bb7 Be3 Be4 Bc1 Bg6 hxg6 Be7 Nd2 Bd6 Nb1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 a5 c4 h5 b4 f6 b6 f3 b5 f2 b7 h4 g3 a4 b6 g4 Nc3 d3 Qc2 a3 Bg5 d2 Rh2 d1N Nf3 a2 Nd2 h3 Nd5 Rh7 Bh4 Rg7 Nb4 f5+ Kf4 Nf6 e4 Kc5 Ke5 Nc3 Rd1 a1N Be2 f4 Nf1 Na6 b8B f3 b7 Nh7 Rd4 Nc7 Bd1 N7d5 Rg2 Kb6 c5+ Kb5 c6 h2 c7 h1Q c8Q Qg1 Qd2 Nc2 Qh6 Na3 Ba4+ Kb6 Rd2 d6+ Ke6 Qg5 e5 Be7 Qd8+ Kc5 Kd7 Nb6+ Kc7 d5 e6 Bf6+ e7 Bd4 Re2 Be3 Qf8 Bd2 Qf6 Be1 Re6 Bd2 Rd6 Be1 Nd2 f1Q Rd7 f2 e8Q Qe2 Qe4 f1N Qc2 Nh2 Nf1 Qe8 Rd2 Qd4 Ba7 Qd3 b8Q Nf3 Qb7 Qd4 Bb8 Qe2 Qa6 Qee3 Qe2 Qe8 Qb2 Ng1 Qe4 Nf3 Qec2 Qh5 Nc6 Qg5 Rg2 Bd2 Qcf5 Na2 Qfc2+ Nac4 Rh2 Ba5 Nb4 Nc3 Rd2 Na3 Na6+
rn4bk/1pbqR1b1/4NRq1/3Q1q2/N1bNp1BK/r2QP2B/1P6/2BN3b b - - 0 2 legal: proof: c4 d5 cxd5 g5 g4 Be6 h4 Qd6 f4 gxf4 g5 Bc8 a4 Nd7 a5 Qa3 h5 Ne5 a6 Ng6 hxg6 Qxa6 Qc2 Qa5 Qd1 Qa2 Kf2 a5 d4 c5 d6 h5 d5 f5 g7 Kf7 d7 e5 d8Q f3 Kg3 a4 d6 h4+ Kh3 a3 d7 e4 Qd4 f2 Rh2 f4 Kg4 f3 Qd1 c4 Qa4 h3 Qc7 c3 Qc5 c2 Nc3 Ne7 g8B+ Kg7 g6 Qd5 Be6 a2 d8N Nc6 Qcb5 Qd7 Nd1 Nb8 Qab3 Ra3 Q5d3 Bd6 Bf5 Bc7 Qbd5 Rf8 Rh1 h2 Ne6+ Kh8 Bh3 f1Q Kh4 f2 Nf3 Rg8 Rb1 a1Q Bfg4 Qg2 Rf1 h1B Nfd4 Qf3 Rg1 f1B Rg3 Qf5 g7+ Kh7 Rg1 Re8 g8N Kh8 Nf6 Rf8 Bg5 c1B Rg3 Bd2 Rf3 Re8 Rc1 Bc3 Bd2 Qa2 e3 Qb3 Rc2 Qb6 Bc1 Qa6 Q5c4 Be2 Nd5 Qad6 Nb6 Q6c6 Nf4 Qcg6 Qd5 Rf8 Na4 Re8 Nde6 Bg7 Nd4 Rf8 Nfe6 Bf1 Qc3 Bc4 Qd3 Qe7+ Ng5 Bb3 Rc6 Qf4 Qe2 Be6 Nf2 Qd7 Qf1 Na6 Qd3 Bc4 Nd1 Bg8 Re6 Ra8 Re7 Nb8 Nge6 Qe5 Rff7 Qef5 Rf6
nq2BqRq/brQ1n3/1Q1p2R1/B2PB1Np/3R1Nr1/4P1rr/K3B3/3k1r2 b - - 0 1 legal: proof: b4 e5 c4 g5 a4 b5 cxb5 d6 f4 exf4 h4 gxh4 a5 Qg5 a6 Be7 b6 Bf8 b5 Bb7 axb7 Qd8 g4 Kd7 d4 Ke6 Kd2 Kd5 Kc3 Ke4 Kb2 f5 e3 a5 d5 h5 g5 c5 g6 f3 g7 c4 Ra3 h3 Bd2 c3+ Ka2 c2 Qc1 f4 Qb2 c1R Be1 a4 Ka1 f2 Qc3 f3 Qc6 h2 Ba5 Rh7 Qc7 Ne7 g8B Nd7 b8B Bg7+ Ka2 Bd4 b7 Nb6 Ba7 Rc4 Ne2 Qb8 Rd3 a3 Rg1 h1R Rg6 Rh3 Nf4 Rb4 Be2 f1Q Bf7 f2 Be8 Rg7 Rd2 Bc5 Bd3+ Kf3 Nc3 Re4 Rf6 Rgg3 Rg6 Ra4 Ne4 Bd4 Kb3 a2 Rd1 a1Q Rd2 Qc8 b8Q Bc5 Qbb7 Qh8 Qa6 Rc4 Ka2 Rb8 Qab7 Na8 b6 Rd4 Qa6 Rc4 b7 Bd4 Qab6 Qb1+ Ka3 f1R Rd1 Qb5 Ng5+ Kf2 Rd2+ Ke1 Ka2 Qb4 Bb5 Qcf8 Be8 Rd8 b8R Rd7 Qbc6 Qb5 Bc5 Qb7 Q6b6 Rb4 Rc8 Qb8 Rd8 Rc4 Ba3 Bc5 Bb2 Re4 Be5 Bd4 Rb2+ Kd1 Rb4 Bc5 Ne2 Reg4 Nf4 Rhh1 Rd4 Rhh3 Qbb7 Ba7 Qbb6 Qf5 Bf7 Qff6 Rdg8 Qfg7 Be8 Qf8 Qc4 Rb7 Qcc5 Rfh1 Qcc7 Rf1 Be2#
2N1NQK1/1pr2PB1/nPp1R3/1B2r2n/1Br1nb1Q/n1q3Q1/3Rkq2/nB6 b - - 0 1 illegal: No proof kernel
7k/Qr1r1Q1n/r6N/1pq4B/NP4N1/KNQ3rp/2Pqn1R1/Br1b1R1q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 d4 gxh4 a5 f5 exf5 Bh6 Qd2 cxd4 Qd1 Bf4 Nf3 Bc7 Ng1 Bb6 axb6 Bb7 Bh6 Ba6 Bc1 Bc8 Kd2 Kf7 g4 Kg7 b4 d5 f4 e5 b7 a5 g5 h5 g6 d3 Kc3 d4+ Kb3 d2 Nf3 h3 Ng1 d3 Qe2 d1Q Nc3 d2 Rh2 h4 Nd5 a4+ Ka3 e4 Qe3 Qg5 Nf3 Nf6 Be2 Nc6 b8Q Nd4 Bb2 Nh7 Nf6 Rg8 Rg2 h2 Qa7+ Kh8 Ng4 h1Q f6 h3 f7 Qc5 f8Q Rb8 f5 Rb7 Qc3 e3 f6 Qc1 f7 d1R Qe7 Qd2 f8N Rb1 Bd1 e2 Nd7 e1R Qf7 Re7 Nb6 Red7 Be2 Rg7 Bd1 Ne2 Nd4 Rg8 Nb3+ Rg7 Ka2 a3 Na4 Ng3 Nf6 Rg8 Bh5 Ne2 Ng4+ Rg7 Nd4 Rg8 Kb3 a2 Ka3 Rg1 Rf1 a1R+ Qa2 Rb1 Ba1 Rf8 Qe6 Rf6 Qf7 Ra6 Nb3+ Rd4 Rh2 Rg3 Rhf2 Bf5 Rg2 Be4 Qd7 Bf3 g7+ Kg8 Qf5 Rdd7 Qg6 Nf4 Qf5 Bd1 Qff6 Ne2 Qe7 Nf6 Qf7+ Kh7 g8N+ Kh8 Nd4 Nh7 N8h6 Qd5 Nb3+ Q5d4 Rf6 Qc5 Rf1+
1B1n3q/K3NQRB/4bN1q/3q2B1/2p1B1p1/Qq1nNP2/3rkRPn/1rq5 b - - 0 1 legal: proof: h4 f5 e4 fxe4 c4 d5 a4 dxc4 Ra2 b5 axb5 g5 Ra1 g4 Qb3 Bh6 Qd1 Bg5 hxg5 Qd6 Nc3 Qd4 Nb1 Qd8 Ke2 Kf7 Ke3 Kg6 d4 Kf5 b4 c5 g6 h5 g7 a5 f3 e5 d5 a4 b6 c3 b5 a3 d6 c4 d7 c2 b7 a2 b6 h4 Nc3 h3 Rb1 a1Q Nge2 h2 Rb3 Nf6 g8B Nc6 b8B Nh5 b7 Ra2 Ng1 Ng3 Qd5 Qb6+ Qc5 Nd8 Nd1 Qb5 Qa3 Qd5 Bd2 c1Q Nh3 Qc2 Rb4 Qb3+ Bd3 Rh5 Rg1 h1Q Nf4 Qc1 Ng6 Nf1+ Kf2 Rh6 Bh7 Nh2 Ke3 Kg5 Ne7 Rb6 Rb5 Kh4 Rc5 Kg3 Rf1 Qcc3 Rc7 Rb5 Ke2 e3 Bdf5 e4 Bfg6 Nc6 d8Q Be6 Qe8 Nd8 Qf7 Qcb2 Ba7 Rb6 b8N Qh8 Nd7 Rb8 Nf6 Rb2 Ke1 e2 Ne3 Kf4 Kf2 e1N Ke2 Nd3 Bf5 Rb6 Bb8 Rb1 Bc1 Rd6 Kd2 Qa4 Kc3 Qd1 Nc2+ e3 Be4 Kg3 Rb7 e2 Ne3 e1Q+ Bd2 Kf4 Rd7 Qh4 Rb7 Qh6 Rc7 Nb2 Kb4 Qc1 Ra7 Nd3+ Ka4 Qa8 Ka5 Qd5+ Qc5 Qd1 Rc7 Rd7 Ka6 Qb3 Qa3 Rd6+ Ka7 Kg3 Re1 Kf2 Rf1+ Ke2 Rc5 Qc6 Nc2 Nc1 Rf2+ Kd1 Rg5 Qe1 Bf4 Rd2 Rg7 Nd3 Bg5 Qd5 Rf1 Ke2 Ne3 Qc1 Rf2+
B4n1n/3b2N1/1Q1K4/2B1n3/Qb1R1pRq/1pNP2n1/qnNR1Pb1/3R1rk1 b - - 0 1 legal: proof: c4 b5 h4 a5 b4 d5 cxd5 axb4 h5 Ra3 d4 Rd3 h6 gxh6 exd3 h5 Bd2 h4 Bh6 Ba6 Bc1 Bc8 Kd2 Kd7 Ke3 Kd6 Ke4 c5 g4 e5 a4 f5+ Ke3 h5 a5 b3 g5 e4 Kf4 h3 g6 h4 a6 b4 a7 b2 a8Q b3 g7 c4 Rh2 c3 Qb7 c2 Qe1 e3 Ra5 e2 Qd2 e1N Qd1 Nh6 g8N Nf7 Rg2 h2 Na3 b1N Rg4 h1B Nf6 h3 Nh5 h2 Be3 c1Q Ne2 Nd7 Nc3 Qh4 Ng7 Qc2 Bg2 Qa2 Nc2 Nd2 Qa1 Nc4 Bf3 Bg2 Qb6+ Ke7 d6+ Kf6 d5 h1N Ra6 Nb2 Bc5 Ng3 Ra4 Rg8 Re4 Be7 Re2 Nh8 Rd2 Nf8 Be4 Be6 d7 Nf3 d8R Ne5 d6 Bc8 Ba8 Bd7 Ke3 f4+ Kd4 Nec4 Rc8 Ne5 Nh5+ Kf5 Rd1 Bb5 d7 Rg5 d8R Bd7 Ba3 Bb4 Rc7 Ne4 Kd5 Rg7 Rc5 Ng3+ Kd6 Rh7 Rg8 Re7 Ng7+ Kg4 Rd2 Kh3 Rd1 Ba5 Rc4 Kh2 Bc5 Bb4 Rd2 Qb1 Qa4 Qa2 Rd4 Kg1 Rc8 Ng4 Rd1+ Re1 Re8 Rf1 Re2 Ne5 Red2 Bdc6 Nh5 Be8 Rg4 Bd7 Ng7
rRq2rbB/1rQ1K3/3r1r2/bPQ1pB1k/N2p3R/1bBBP1qn/8/R1N5 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 a4 c5 axb5 cxd4 Ra4 Na6 Ra1 Nc5 Kd2 Ne4+ Ke1 fxg4 Ra5 g3 Ra2 g4 Ra1 Ng5 hxg5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 Kf7 Kd3 Kg6 Ke4 a5 Ke5 h5 f4 d5 b4 d3 c4 d4 b6 d2 b7 g2 b8R h4 b5 g3 c5 a4 c6 h3 e3 a3 c7 h2 Rb6+ Nf6 Be2 a2 Rb8 Be6 c8Q Bg8 Nc3 Nh7 Qc5 Qc8 Na4 e6 Qc7 Bb4 Bb2 Ba5 Kd6 e5 Qdc1 d1B Bc3 Bdb3 Bd3+ Kh5 g6 Ng5 f5 Nh3 Ne2 g1Q g7 g2 f6 Ra6+ Ke7 Rd6 f7 Rh7 Rb1 a1R f8B Rhh6 Qa3 Rhf6 Nc1 Qf2 Qb4 g1R Qbc5 Rf1 Bf5 Ra3 Ra1 Qg3 Bd3 Bgd5 g8B R1f5 Rf1 h1R Bh7 Bg8 Bg7 Rf8 Bh8 R5f6 Rf4 Rg1 Bhf5 Rf1 Qd8 R8f7+ Ke8 Rb7 Rh4+ Kg5 Bd7 Bc7 Nb6 Ra8 Nd5 Ba5 Ke7 R6f4 Nb6 Rf8 Qdc7 R1f3 Na4 R3f6 Rf4 Kh6 B7f5 Kh5 Rh4+
1r1R4/1b4bN/3pK1k1/1n2p1q1/Br1PQ1rq/br1r1RN1/PB1NR3/2Q1N3 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b3 b5 Ba3 b4 Bc1 Nc6 Rh3 Na7 Rh1 Nb5 cxb5 a4 Qf3 axb3 Qe2 Ba6 Qd1 Bc8 Ke2 Kf7 Kd3 c5 Kc4 e5 Kd5 h5 d4 d6 f4 c4 g4 b2 b6 c3 f6 h3 g5 h4 b7 c2 b8Q b3 f5 h2 Bb5 h3 Nd2 b1R Bb2 c1B Qb7+ Qe7 Ba4 Rh4 Ngf3 Rb8 Ne1 Bg7 Rf1 h1R Rf3 h2 Qc6 Bb7 g6+ Kf8 f7 Qg5 Ke6 Ne7 Qcc2 Nc6 Qe4 Na7 Qdc2 Nb5 Qc5 Bh6 Qc4 Kg7 f8N Rf1 Nh7 h1Q Nf6 Rg4 Nh5+ Kg8 f6 Bg7 Qc7 Qhh4 Ng3 Rh1 Qc5 Rh3 f7+ Kh8 f8N Kg8 Bc3 Ba3 Nh7 b2 Qc4 Rd1 Qf1 b1R Bb2 Kh8 Qc4 Kg8 Qc1 Kh8 Bc3 Rb4 Bb2 Bf6 g7+ Kg8 Nb1 Rd3 Nd2 Rdb3 Kd7 Kf7 g8R Rd3 Rd8 Kg7 Ke6 Kh6 Qd1 Bg7 Rc1 Rdb3 Rc2 Rd3 Qc1 Rdb3 Nc4 Rd3 Re2 Rdb3 Nf5+ Kg6 Nd2 Rhg3 Rff2 Rgc3 Rf3 Rd3 Ng3+
b3kq2/Br1n1N2/K1p5/3bP1b1/R1PQ1NBq/2b2rQ1/pb2N2R/2Q1q2Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 e4 e5 Qh5 Nc6 Qe2 dxe4 Qd1 e3 Ke2 e4 Ke1 Ne5 fxe5 Ke7 Nf3 Kd7 Ng1 Ke8 Ke2 h5 b4 a5 d4 f5 g4 f4 b6 a4 g5 h3 b5 a3 g6 h4 b7 h2 b8Q h3 g7 Bb7 b6 Bd5 b7 Ra7 Nc3 Be7 Qc8 Bg5 b8Q Rb7 Qa7 Nf6 Bb2 Rf8 g8Q Nd7 Qca8 Rb4 Qc1 Rb7 Bg2 Qb8 Bf3 Qd8 Bg4 f3+ Ke1 f2+ Ke2 Qc8 Qg7 Rf3 Qc5 Bb3 d5 Ba2 d6 Bd5 Qd4 f1B+ Kd1 Bg2 Nge2 Qd8 Nf4 e2+ Kd2 e1B+ Ke2 e3 Kd3 Bd2 Nce2 Bc3 Qh6 Qb8 Qh4 Qc8 Qg3 a2 Rb1 Qd8 Ba1 Qb8 Rb4 Bb2 Ra4 Qc8 Rg1 Bh1 Rg2 Qb8 Rf2 Bg2 c4 h1Q Kc2 h2 Kd3 Ba3 Kc3 Qd1 Bb2 h1Q Ba1 Qh3 Bb2 Bh1 Rh2 Qh4 Ba1 Nb6 Bb2 Qe1+ Kb3 Qc8 Ba1 Bb2 d7+ Kf7 d8N+ Ke8 Nf7 Nd7+ Rb4 Qd8 Ka4 Qb8 Ka5 Qd8 Nc3 e2 Ra4 Bg2 Qaa7 Qe7 Ka6 Qf8 Qab6 Qd1 Qg6 e1B Nce2 Bec3 Qgd3 Qe1 Qg1 Rb3 Qdd4 Ba8 Qh1 c6 Qd5 Rb7 Qd4 Rd3 Nh6 Bd5 Nf7 Ba3 Bb2 Rf3 Ba1 Bd2 Bc3 Bb2 Bb4 Bdc3 Bc5 Qh3 Bb6 Qh4 Ba7
3rrQ2/4p1K1/nrp3RR/3QR2P/2P1NN1r/RB1N2b1/2bBq1q1/3k1r1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 e4 dxe4 Bc4 Nc6 Bd3 Nd4 Bf1 Ne6 Ke2 hxg4 Ke1 g3 Qf3 g4 Qd1 Ng5 fxg5 Rh6 Ne2 Rh3 Ng1 Rh8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 h4 Kd4 c4 f5 b4 a5 h5 g2 d3 g3 b6 c6 b5 a4 g6 a3 Kg5 a2 g7 f4 Kg6 e3 b7 f3 b8R e2 b6 e1Q b7 f2 Nh3 g1R Qf3 g2 Bd2 Nf6 g8R Qe2 Nf4 Qd5 Nc3 Ne8 Ne4 Nc7 Re1 a1R Rh3 Na6 Rg7 Qe3 Be2 f1R Bd1 Rh1 Bb3 Rb1 Rh7 Qf2 Rh6 Bg7 Re2 Be6 Rg8 Re8 b8N Be5 Nd7 g1Q+ Qg2 Bd6 Kg7 Bf5 Ndc5 Bh7 Rg3 Rh4 Re1 Qe2 Qf2+ Ke5 d4+ Kf5 Rgg6 Qh1 Ncd3 Rb2 Rg3 Bg6 Re3 Kg4 Ra1 Qg5 d5 Bb8 d6 Rd8 Bc2 Rb6 d7 Re8 d8Q Bh7+ Ng6 Bg3 Ra3 Qd5 Ngf4 Bf5 Nc3 Qdg2 Re5 Bh7 Qfd4 Kf3 Bb3 Bg6 Q4d5+ Be4 Nc5 Kf2 Qa8 Bc2 N3e4+ Kf3 Ncd3 Rd8 Kf7 Re8 Rgg6 Rd8 Ba5 Rhe8 Kg7 Ke3 Nc3+ Kd2 Ne4+ Kd1 Bd2 Rf2 Qc8 Rf3 Qf5 Rf1 Qf8
n3b2r/KprPR1R1/N4n2/1PQ1B1qp/8/2k2rQB/Q1NN4/n3qrrN b - - 0 1 illegal: No possible last move
3k2R1/1B2Qn2/1q1p4/qp2nR1r/1r4qB/QP1Q2P1/BBq4r/1qN1bKN1 b - - 0 1 illegal: No possible last move
bQ2b3/1pqN2Q1/1PqR2Q1/1RQ1b1K1/1p6/rk1RNqB1/rP1q3q/1n5B b - - 1 2 illegal: Other
2q2k2/2n1Qq1R/p3R2P/Nb5q/PBq2BBQ/B2pq1b1/2r1n1N1/N4n1K b - - 0 1 illegal: No possible last move, all moves rejected
1n2kB2/prN2n2/q1nr4/1Q5p/1RN1BKnB/1Pq4Q/1rn1R2P/N4Bb1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Kf2 Bb7 Ke1 Be4 Kd2 exf4 Ke1 f3 Na3 f4 Nb1 Bf5 gxf5 Be7 Na3 Bd6 Nb1 Bf8 Kd2 h5 e4 d5 c4 g5 b6 d3 c5 f2 c6 d4 f6 g4 b7 f3 e5 g3 e6 g2 e7 Rh7 c7 Qc8 Qe2 Nh6 Qe3 Nf7 Ne2 g1N Ra2 Qh3 c8B Bg7 Bg2 f1Q Na3 f2 Bf5 Bf8 Bfe4 Qg3 Nc3 Ne2 Nc2 Qc7 Nd1 Qc6 Bgf3 Qh3 Ra4 Qa6 Rb4 f1R b3 Rf2 Ba3 Qc8 Nb2 Qc3+ Kd1 d2 Na1 Rg2 Nc4 Bh6 Qd3 Be3 Re1 Bg1 Bg4 Rf2 Qh3 Nh6 Nb6 Nd7 b8Q+ Kf7 Qh8 Rd8 e8N Nb8 Bc1 Rd6 Nc4 Rg2 Nc7 Rf2 Ne6 Rg7 Nf8 Ke8 Bgf3 Rb7 Bg2 Qg3 Kc2 d1N Kd2 d3 Bf1 Ne3 Qg8 Qe5 Qd5 Neg4 Ne6 Qd4 Bb2 Qe5 Bd4 Rg2 Bf2 Nd4 Qb5+ Ndc6 Re2 Qd4 Bh4 Qe5 Rf2 Qc3+ Kd1 d2 Ke2 d1N f7+ Kd7 f8B Nf7 Nc7 Ne3 Nd5 Ke8 Kf3 Qa5 Kf4 Qa6 Rf3 Re2 Rf2 Rb2 Re2 Nc2 Nc7+
7q/K1b1q2R/1BpkN1n1/pQB1r3/1N4P1/B1Pq2q1/1q2R1Nn/1B1Qrr2 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 h3 fxg4 Ra6 g3 Ra1 g2 Na3 g5 Nb1 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd4 Rh3 Qd7 Rh1 Qd8 Ke2 Kd7 Ke3 e5 f4 a5 d4 h5 b4 c6 d5 h4 d6 h3 b6 h2 b5 Ra6 f5 Qe7 b7 Ra7 f6 Rh5 Ne2 g1R f7 g2 c3 Bg7 Kd2 e3+ Kd3 e4+ Kc4 Re5 Nf4 e2 f8B e1Q b6 e3 Ba3 e2 Ra2 Qf2 Rb2 e1Q Bd3 Qee3 Re2 Ra8 Bc5 Qfg3 Na3 Rf1 Nc2 g1Q Ng2 Q1f2 Nb4 Ra7 Bb1 Qd3+ Kb3 Ke6 d7 Bh8 d8B Nd7 b8N Bg7 b7 Bh6 Ka4 Bf4 N8a6 Ra8 Bdb6 Re8 Be3 Kd6 b8Q+ Ke6 Nc7+ Kd6 Re1 Qb2 Re2 Rg5 Qb7 Ne5 Ne6 Nf3 Qa6 Re5 Qb5 Nh6 Bg1 Nf7 Bgd4 Nh8 Be3 Qc1 Kb3 Ng6 Bed4 Qdd2 Kc4 Qcb2 Rg1 h1Q Bf2 Qh8 Rh1 Kd7 Rh7 Nh2 Bfc5 Qf7 Bfd6 Qe7 Nd5 Qdc2 Ba3 Qcd3+ Kc5 Re3 Nb4 Be5 Rc2 Ree1 Re2 Bf4 Ba7 Be5 Kb6 Bf4 Bc5 Bb8 Ka6 Bc7 Bd4 Kd6 Bab6 Ref8 Bg1 R8f5 Ka7 Re5 Bgc5+
Nb4rB/qb1Bb3/2Q2nQ1/1p1rP1b1/r1Q1bkp1/N3q3/1PR3R1/2Q2R1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 d5 cxd5 e5 a5 exf4 Na3 Nd7 Nb1 Nb6 axb6 Qd7 Nh3 Qd6 Ng1 Qd8 Kf2 Ke7 Kg2 Kd6 h4 Ke5 e4 a5 b7 g5 b8Q f5 h5 a4 h6 a3 d6 c5 h7 g3 Ne2 a2 Qc7 c4 Na3 c3 Qc6 c2 d7 Nf6 Nd4 Qb6 d8Q Be7 Rh2 f3+ Kh1 f4 Rg2 f2 Ne6 f3 Qd3 Qe3 Qdc4 Ra4 Nc7 Rg8 h8R Bb7 d4+ Kf4 Bd2 c1B d5 g4 Bc3 Bd2 Bd3 f1B d6 f2 d7 Bc1 Bc2 Bd3 d8Q Bd2 Qg1 f1R Na8 Rd1 Qdb6 Bc1 Rb1 a1Q Bb3 Bc2 Rhh2 Rd5 Qa6 Bd2 Qc1 Bd3 Ba5 Qa2 e5+ Be4 Bd8 Bd6 Be7 Bb8 Bf8 Bb4 Bg7 Be7 Bh8 Nh7 Qg6 Nf6 Bd1 Qa1 Bf3 Qa2 Rc2 Qa1 Rhd2 Qa2 Qac6 g2+ Kh2 g1B+ Kh1 Bf2 Ra1 Bh4 Rg2 Bg5 Rb1 Qb3 Ra1 Qc3 Rb1 Qd4 Ra1 Bd3 Be4 Qa7 Bf5+ Be4 Bd7 Bc7 Qd2 Bcd6 Rd1 Bc7 Qc1 Bb8 Rf1+
3r3R/4NK1p/1P2rp1N/qknB1Q1N/R1b2r2/5RBP/Q4b1r/3rRb1q b - - 0 1 legal: proof: f4 b5 d4 c5 a4 cxd4 axb5 f6 g4 Nc6 g5 Ne5 g6 Nf7 Ra5 e5 gxf7+ Ke7 Ra1 exf4 Kf2 Kd6 Kf3 Kc5 Kg4 a5 Kf5 g5 c4 d3 e4 g4 b4+ Kb6 h3 a4 e5 d5+ e6 d4 Nc3 f3 Qd2 f2 Qa2 g3 Bf4 a3 Nge2 g2 Ng3 g1R Nh5 d2 Bg3 d1R Bg2 f1B Bd5 Bb7 e7 d3 Ke6 d2 e8N Bc5 f8R Re1+ Kf7 d1R Nd6 Ne7 Nf5 Nc6 Nh6 Na5 Re8 Nb3 Re3 Ra7 Rf3 Rg2 Rg1 Re5 Rh1 Bf2 c5+ Kc7 c6 Kb6 c7 Re6 c8Q Nc5 Rg1 Rh2 Qd7 Bc4 Re1 Qa8 Qc8 Ra4 Qd7 Rd8 Qc8 Ka7 b6+ Ka6 b5+ Ka5 Qd7 Ba6 b7 Bf1 b8R Rf4 b6 Bac4 Rc8 Kb4 Rb8 Qa5 Rc8 Re5 Qf5 Re6 Ne4 Kb5 Nd6+ Kb4 Ra8 Ka4 Nc8 Kb5 Qd2 a2 Ne7 Rd7 Rh8 Rd8 Rc1 a1Q Qa2 Qb1 Rcc3 Qe4 Ra3 Qb1 Ra4 Qe4 Rfe3 Qh1 Rf3
4B1bK/Qp3qN1/2R1n3/2NB2QP/1QqQ1b1p/bP2rq1q/7n/B3Rkq1 b - - 0 1 illegal: No proof kernel
BN2K3/1k1p1Qqq/1p6/b1r1nP1N/3Q1NbR/1RNn1qB1/1P1q2b1/3B3q b - - 0 1 illegal: No possible last move, all moves rejected
1n1nq3/pq1p1N2/nN2rBN1/3qNK2/1nQB2nR/P6B/1Q2P3/1Rrbk3 b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 f5 h4 g5 Qd3 Be7 Qd1 fxg4 Bb2 g3 Ba3 g4 Bc1 Bg5 hxg5 Qf6 Rh5 Qb6 Rh1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 b5 f4 g2 a3 h4 c6 h3 c5 g3 g6 h2 g7 d3 c7 d2 c6 b4 Nh3 g1N Nc3 b3 Rb1 g2 Bb2 Na6 Nf2 Bb7 c8N Rh6 Ne7 Nh3 Ra1 g1N Ng4 Nf3 Nb5 Nfg5+ Ke3 Nf2 c7 Rc8 Nf5 Kd5 Nf6+ Kc4 Bc3 b2 Bd4 b1Q Ne7 Ne6 f5 Bc6 Ng4 Qe8 f6 Nd8 Kf4 Nd3+ Kf5 Qb3 f7 Ndb4 f8B Re6 Qb1 d1Q Ng6 Ne7+ Kg5 Bd5 g8Q Nec6 Be7 Ncb8 Bh3 Be4 Bef6 Bc2 Qc1 Qf3 Qd2 Qb7 Rb1 Bb3 Qb2 Ba4 Bde5 Qdd5 Kf5 Bd1 Nd6+ Kc5 Rf1 h1N Nf7 Nf2 Rh1 Kc4 Rh2 Qg2 Bc3 Qgd5+ N4e5+ Kb5 Bf1 Ng4 Rh4 Ka4 Bh3 Kb5 Qa1 Ka4 Bb2 Kb3 Bc3+ Kc2 Bd4 Kd2 Qb2+ Ke1 Nf4 Nb8c6 Ng6 Rb8 c8N Ra8 Ncd6 Rc8 Nc4 Ncb8 Nb6 Rc7 Qf8 Rc4 Qc5 Rc1 Qc4
Bn2KR1b/3pQ3/Qr1qR3/1r1qr1kn/6qR/R1N1rP2/p2P4/B3rBN1 b - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 axb5 Nh6 c5 Nf7 b6 Nh6 b5 Ng8 c6 Bb7 cxb7 Bg7 Ke2 Bh6 Ke1 Bf8 Ke2 Kf7 Ke3 Kf6 Kf4 a5 g4 h5 Qf3 c5 Qe2 e5+ Ke3 h3 Ra2 h2 Ra3 c4 Bg2 c3 Qf3+ Kg5 Qf7 a4 Ra2 a3 Ra1 h4 Qc4 h3 Bb2 c2 Bf1 c1R Nc3 Bg7 f3 Nf6 Ra2 Qc7 Ba1 Rh5 Qa4 Rb1 Qa6 Nc6 b8Q Qd6 b7 Bh8 b6 Rb5 Qf8 Nb8 Qe7 Ra7 Rb2 a2 Rb3 Qd5 Ra3 Rh6 Kf2 e3+ Kg3 e4 Na4 e2 Nc3 Kg6 Kf4 e1R g5 Nh5+ Kg4 e3 Kh4 Kf5 g6 e2 g7 Re6 g8B Re5 Bf7 Qd6 Bd5 Reb1 Bc6 e1R Bd5 R1e3 Bc6 Rbe1 Bd5 Nc6 b8R Rb7 Re8 Nb8 Bc6 Rc7 Ba8 Rc6 b7 Rcb6 Qd8 Qd5 Re6 Kf4 Qe7 Qd6 Nge2+ Kf5 Rg1 h1Q Rg4 h2 Ng1 Qg2 Rb4 Nc6 b8R Qg8 Rd8 Nb8 Rf8+ Qf7 Rc4 h1Q+ Nh3 Qg2 Ng1 Nf4 Rb4 Ng6+ Kh5 Nf4+ Kh6 Nh5 Rh4 Qg8 Ne4 Qg4 Nc3 Qf6+ Kh7 Kg5 Kg8 Qc6 Qc5 Qh6 Kf7 Qd5 Qb4 Qg6+ Ke7 Qgd3 Ke8 Qd6 Qe4 Qc4 Qh7 Qcd5 Qe7+
4r2R/2kN1p2/1b2pn1B/N1bRb1Pq/3b2B1/b3Q1N1/bNnKP3/1RQ3b1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 g4 b5 axb5 hxg4 Nh3 g5 Qa4 a5 Qd1 g3 Ng1 g4 Nh3 Rh5 Ng1 Rg5 fxg5 Ra6 Bh3 Rh6 Bf1 Rh8 b4 Kd7 d4 c5 h4 c3 d5 a4 d6 c2 b6 c4 h5 c3 h6 g2 h7 g3 b5 a3 b7 a2 b6 e6 Ba3 c1B Nh3 g1B Nf2 c2 Ne4 g2 Nbd2 Qe8 Nc4 Nf6 Nb2 Bh6 Ng3 Bf8 Rb1 Bce3 Qc1 Na6 b8Q a1B b7 Bb6 Qa7 Bgd4 Kd2 g1B Bh3 Nb4 b8N+ Kd8 d7 Bfc5 Bg4 Bb7 Rh3 Kc7 d8N Qf8 Rh1 Qh6 Nd7 Qh5 Nc6 Re8 h8R Be5 Na5 Bed4 Qa6 Bd5 Qd3 Ba2 Qe3 Be5 Rh2 Bed4 Rf2 Be5 Rf5 Bed4 Rd5 Be5 Qf1 c1B+ Kd1 Nc2 Qff4 Bd4 Bf8 Bdc5 Qf1 Bed4 Bh6 Be5 Nd3 B1a3 Kd2 B1b2 Qc1 Bbd4 Nb2
1K1Q3q/Q1BQNqq1/4n2p/nB2b1nP/pR2R2k/rBr2P2/8/q2NQ2r b - - 0 1 illegal: No possible last move
4q2n/nr1P1k2/KRQ1r3/n1rpN3/RR1P4/QB4bN/1nqR1Bp1/q5Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 exf4 c5 d6 c6 Bd7 cxd7+ Ke7 h4 a5 d4 f5 Kd2 c5 Kc3 g5 Kc4 a4 b4 g3 e4 a3 h5 a2 e5 f3 e6 f2 b6 g4 Kb5 g2 h6 g3 b7 c4 h7 c3 Bf4 c2 Qe1 c1R Qe3 d5 Nh3 g1Q Qa3 g2 Ng5 Nh6 Bc7 f4 Kb6 f3 b5+ Rc5 Nd2 Qe8 Bc4 f1N Bb3 f2 Bg3 Nf7 Ndf3 Ne3 Nh3 f1Q Bf2 Qe2 Ne5 Nc6 b8R Na7 Ka6 Nd1 Rb6 Nb2 Rd1 a1N Rd2 Rg8 h8Q Rg6 Qh6 Nh8 Qe3 Kf6 e7+ Kg7 Qc3 Rb8 Qc4 Rb7 Qc3 Qd8 e8Q Bd6 Qc1 Qc4 Qe6 Qe8 Qe1 Bc7 Qc6 Re6 Qe3 Qb1 Rc1 Qf1 Rc4 Qc2 Ra4 Kf8 Nd3 Bg3 Ne5 Qcc1 Qe1 Qe2 Qg1 Qce1 Bd1 Nb3 Bc2 Na5 Bb3 Qa1 Rd1 Qe1 Rd2 Rb8 Rb7 Qe4 b6 Ra8 Rb8 Qc2 b7 Ke7 Rd8 Rc8 b8R Rc7 Rbb4 Kf8 Rdb8 Kg8 Ng4 Kf7 R8b6 Rb7 Ne5+
K1bq2QQ/1p1pnk1Q/1PnQb3/2NB1Bn1/1b5R/n3B1P1/q4N1R/3q2r1 b - - 0 1 illegal: No possible last move, all moves rejected
Q2K1R2/p1Q2q1N/P2Rr1r1/P7/1r3b1p/NBn1qq2/R1NB1knN/4q1n1 b - - 0 1 legal: proof: h4 e5 a4 d5 c4 g5 cxd5 gxh4 f4 exf4 a5 Bd7 b3 Ba4 bxa4 Ke7 Ra2 Kd7 Ra1 Ke8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 b5 e4 f5 Ke6 Kd4 d6 c5 a6 h3 d3 f3 d7 f4 a5 c4 g5 h4 e5 h2 g6 f2 g7 b4 Kf7 f3 e6 c3 e7 c2 e8Q b3 Qde2 b2 Bh3 f1N Na3 b1R Nc4 f2 Bd2 c1Q Be6 Qc7 Ra2 Ne3 Na3 Rh6 Bb3 Ne7 g8N f1Q+ Nf6 Ng2 d8N Nd5+ Q2e7 Qfe1 Nh7 Re6 Q7d7 Qb7 Qc7 Bd6 Qf8 Nc3 Nc6+ Kc5 Nb4+ Kd4 Qd8 Nc6 Qg8 Bf4 Nf3+ Kc5 Qh8 Rg8 Rf1 h1Q Nbc2 Rgg6 Qa8 Qh3 Nh2 Qf3 Rf2 Qee3 Rf1 Qce1 Rf2 Qb5 Rf1 Qc4 d4+ Kd5 Kf8 Ke4 d5 Nd4 d6+ Kd3 d7 Nde2 Kf7 Ng1 d8R+ Ke2 Rd6 Qcd5 Qe7 Qf5+ Ke8 Qf7+ Kd8 Rb2 Qc7 Rb1 Bd5 Rb4 Bb3 Qd5 Rf3 Qde4 Rg3 Kf2 Rg5 Q4f3 Rf5 Qg7 Rf8 Qg8 Qe7 Qf7 Qc7
1N1k1N1n/K1Nrb1qn/2Q1bQ1P/1B6/1bR1pq2/p4nR1/P1QBq3/N3b3 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 h5 Qf3 hxg4 Qe2 Qd7 Qd1 Qd8 f4 e5 Nc3 a5 Bd3 b5 Bf1 e3 Nb1 e4 Bc4 Rh5 Bf1 Re5 fxe5 Ra6 Bg2 Rh6 Bf1 Rh8 Ke2 g5 d4 f5 c4 a4 h4 f4 c6 a3 c5 g3 c7 g2 e6 g4 e7 b4 h5 b3 h6 g3 d5 b2 d6 Nc6 d7+ Kf7 e8N Ke7 Nf3 g1B Nh4 g2 Qd4 Bb7 c8Q Nf6 Nd2 b1Q Nb3 Qc7 d8N Qb2+ Bd2 Nh7 Rc1 Ne5 c6 Ng6 Na1 Qb8 c7 Bd5 Rc2 Be6 Rh3 Q2b7 Rg3 f3+ Kd1 f2 Bb5 Rg8 Ke2 Nh8 Qb2 Rg7 Nc6+ Kf7 Qe5 Bb4 Ng6 Q7a7 Nf8 Qd4 Na5 Ke7 Qb7 Qd7 c8Q Qd6 Qcc3 Kd8 Nc7 Q7e7 Qf6 Qf4 Qb3 Rf7 Rc4 Rg7 Kd1 f1Q+ Kc2 e2 Qa4 e1B Kb3 Bd4 Qb6 g1N Nc6+ Kc8 Nb8 Bdc5 Qc6 Nf3 Qaa8 Qe2 Ka4 Kd8 Qa5 Bc3 Qb4 Bd6 Qb2 Bcb4 Qc2 Bdc5 Ba6 Rf7 Kb5 Bd6 Kb6 Rg7 Qf5 Qeg5 Ka7 Rd7 Qf6+ Be7 Bb5 Qg6 Kb7 Qg7 Ka7
7N/2p5/bR1Rnb2/qQp1Bk1B/qr4NN/1RP1q3/P1N2n2/K1bQnn2 b - - 0 1 illegal: No proof kernel
1r2k3/QbK1p2B/1B3qbQ/4NBQ1/4P3/1n1rqpP1/2NQr1qb/2q1R1R1 b - - 0 1 legal: proof: d4 g5 a4 b5 axb5 c5 f4 Nc6 g3 Ne5 h3 Ng4 hxg4 gxf4 Ra5 cxd4 Ra4 Bb7 Ra1 Bc8 Kf2 h5 Kf3 f5 b4 a5 e4 d5 c4 d3 b6 d2 b7 d4 b8Q a4 c5 a3 g5 h4 g6 h3 g7 a2 c6 h2 c7 d3 b5 Qd4 b6 Nf6 g8Q Qe3+ Kg2 Nd7 b7 Nc5 Qh7 f3+ Kh3 f2 Nf3 Bh6 Na3 Nb3 Qa7 Rb8 Nc2 f4+ Kh4 Rf8 Rg1 h1Q+ Bh3 f1Q Ne5 Qhg2 Bf5 Rh8 Qg4 d1R Qg5 d2 Kg4 f3 Rb1 a1Q Bb2 Re1 Bd4 d1B Bb6 Re2 Qa2 Bg7 Qhh6 Qe1 Rc1 Q1d2 Rb1 Qc1 Qa5 Rf8 Qd2 Rf6 Re1 Rd6 Rg1 Rd7 Bh7 Qab2 Kf5 Rd3+ Nd7 Be5 Ke6 Bd4 Kd5 Bc5+ Kc6 Qg7 Ne5 Qf6+ Kb5 Bf5 c8B Bg6 Bf5 Bd4 Ne1 Bc2 Ra1 Bb1 Nc2 Ba2 Re1 Qf4 Ka6 Bg1 Ka7 Bh2 Rg1 Rbd8 b8Q Qe3 Kb7 Rc8 Qa8 Rb8+ Kc7 Nc5 Rb1 Bd5 Qaa5 Nb3 Qa7 Bb7 Ra1 Qa3 Raf1 Qc1 Re1
bk1q2n1/1RrB2p1/K3QN2/1r1qp2N/4Nr2/3Pbq1R/N1b1P1Q1/4BrB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c3 Nd7 c4 dxc4 f5 e5 Ra2 Nc5 Ra1 Ne6 fxe6 Rh6 Qc2 Rh5 Qd1 Rh8 b4 a5 h4 f5 d3 c5 Kd2 g3 Kc3 g2 e7 Kd7 e8Q+ Kc7 b6+ Kb8 b7 a4 b5 f4 h5 f3 h6 f2 h7 a3 Nf3 g1Q Ng5 a2 Bd2 Be6 Rh3 Qh2 Be1 Ra4 Ne4 Qg3 Qf7 Bd5 Qe6 Qf3 Qd2 Bc6 Qg5 Bd7 Bg2 f1B Bh1 Bg2 Qg3 Ka7 b8N Be7 Qh2 Bg5 b6+ Ka8 Qg3 Be3 b7+ Ka7 Qg5 Rb4 Qgg6 Ba4 Nd7 Bc2 Ndf6 Rb5 b8B+ Kb7 Ba7 Qd5 Bb6 Kb8 Nbd2 Qd8 Nb3 Qd5 Nc1 Qd8 Rb1 a1R Na2 Qd5 Rb3 Rb1 Ra3 Rd1 Bf2 Rf1 Ra7 Qd8 Ba5 Qd5 Bg1 Qd8 Bb4 Qd5 Kb2 c3+ Ka3 c4 Qg5 Bd1 Qg3 c2 Be1 c1R Qh2 Rc2 Ka4 c3 Qg3 Ne7 Qg6 Rf8 h8N Ng8 Qg3 Rf7 Ng6 Rc7 Nf4 Rc1+ Ka3 c2 Ka4 Rcb1 Qgg4 R1b3 N4h5 c1Q Qg3 Bc2 Qg6 Qd8 Qg3 R5b4+ Ka5 Rd4 Ka6 Rb5 Ng5 Rf4 Nge4 Qa1 Qg5 Qad4 Qg3 Qg4 Qf2 Bf3 Qg2 Q4d5 Nf2 Qb3 Qh2 Ba8 Bc6 Qf3 Bd7 Qe8 Qg2 Qbd5 N2e4 Qd8 Rb7+
3QK3/q1q1N1Rr/p1rNp3/1B1bB1Q1/n2rrB2/P1b4B/1PbR4/qk2R3 b - - 0 1 legal: proof: e4 g5 c4 b5 g4 bxc4 h4 d5 hxg5 dxe4 f4 Qd7 g6 Ba6 g7 Bc8 g5 Nc6 f5 Ne5 Qb3 Ng6 fxg6 Qd3 Qd1 Qd8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 f5 d5 h5 d6 c5 d7 e3 Ke6 f4 Kf7 f3 Na3 h4 Be2 f2 Qc2 f1Q+ Bf3 e2 Rb1 e1R Qf2 h3 Bd1 a6 Bg4 h2 Bf4 c3 Be3 c4 Nf3 c2 Rc1 c3 Ne5 Qg1 Nac4 Nf6 g8Q Ne4 a3+ Kb3 g7 Ka2 g6 Rh7 Qg2 Qc7 d8B Nc5 Rd1 c1R Bf4 c2 Ke8 Re4 Bh3 Bf5 Nc6 Na4 Nd6+ Kb1 Qg5 Qga7 Rhe1 h1B Rd2 e6 Ne7 Bg2 Qh8 Bh1 g8B Bg7 Bf7 Bc3 g7 Rc8 g8R Rd1 Rg7 c1Q Bh5 Bg2 Be2 Bh1 Rd5 Rdd4 Bb5 Re3 Re5 Bd5 Ng6 Kc2 Kf8 Qcb8 Rd1 Qa1 Rd2+ Kc1 Re4 Rc5 Qg8 Qbc7 Bf6 Kb1 Ne7 Re1 B6e5 Rc6 Kf7 Re3 Qd8 Re2 Re3 Bc2 Ke8 Re1 Rf3 Ree4 Re3 Ka2 Ree2 Kb1 Re1+
4Nq2/1r1b1R1Q/KQ4B1/pN1Q4/1R1n4/q1pqrb1N/P4Prq/b2Q2Bk b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Na6 Bc1 Nc5 Bh3 Ne4 Bg2 fxg4 Bf1 g3 Nd2 g4 Nb1 Ng5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 Ke7 Kc3 Ke6 e4 a5 b4 d5 b5 h5 b6 c5 b7 g2 b8Q h4 g6 h3 g7 h2 Qa7 g3 Qb7 d4+ Kd2 c3+ Kd3 c2 Kc4 d3 Kb5 c4 Qa7 d2 Qd4 Rb8+ Kc6 Rh3 Qa7 Nh6 Na3 Nf5 Nb5 Rb7 Bd3 c3 Qa6 Ba3 Qb6 Bb2 Rb1 Ba1 Rb4 Qf8 Ba3 c1Q g8Q+ Rf7 Qh7 Rb7 Nd6 Qb2 Kb5 Bd7+ Ka6 Nd4 Bc2 Qb3 Bc1 Qa3 Bd3 Rh5 Nh3 g1Q Bb1 g2 Nb5+ Bc6 Bd3 Qf1 Bb1 g1R Bd3 Rg6 Rg1 Rg8 Rg7 h1Q Rf7 Rg2 Bb1 Qd3 Bc2 Qe7 Bb1 Qh2 Bc2 Kd7 e6+ Kc8 e5 Qg1 Rc4 Rg6 Rf5 Qdf1 Rf3 Qf8 e7 Kd7 e8N+ Ke6 Rb4 Kd5 e6 Bd7 e7 Re5 Bf5 Qd3 Nd6 Re4 e8Q Re5 Qe1 d1B Bf4 Re3 Bh2 Qg2 Bg1 Qh2 Qc8 Rg4 Bg6 Ke5 Nf5 Ke4 Qc4 Be2 Qd1 Rg5 Rg3 Rg4 Qcc5 Rg5 Rg4+ Kf3 Rf4+ Kg2 Nd6 Bf3 Rf7 Kh1 Qd5 Rg2 Ne8
2K3R1/2P2N1p/NRQ2qq1/q1BbB1r1/2nR2n1/Q2Bb2P/bp4n1/1kR1n3 b - - 0 1 legal: proof: g4 c5 f4 b5 e4 Qa5 e5 Kd8 e6 Kc7 g5 Kc6 f5 Qd8 b4 a5 exf7 axb4 d3 Ra6 d4 cxd4 Qe2 Kd5 Qd1 Rf6 gxf6 Kc6 Kf2 Kc5 Kf3 e5 Kg4 g5 c4 d5 a4 e4 h3 d3 a5 Kd4 c5 b3 a6 b4 c6 e3 a7 d2 a8R e2 c7 Kd3 R1a6 b2 Qe1 Kc2 Rc6+ Bc5 f8Q d1Q f7 d4 Nd2 b1B Rb6 d3 Ra7 b3 Ne4 b2 Rh2 d2 Nf3 Nd7 f6 Ba2 Kf5 g4 Nfg5 g3 Ra4 g2 Rd4 g1Q Qf2 e1N Qg2 Kb1 Bd3+ Qc2 Qh1 d1N Bf4 Qg2 Be5 Qd2 Qd6 Qc3 f8B Qa5 f7 Bb7 Be7 Ba8 f8R Ngf6 Rg8 Ng4 Nf7 B8d5 Qc6 Qf8 Qf3 Qd8 Rc4 Bg1 Rd4 Be3 Nc5 Qf8 Na6 Qh6 Bg7 Nde5 Bc5 Nc4 Be5 Qh4 Rg5 Re8 Rg8 Re6 Qg3 Rg6 Re2 Bf3 Rh2 Rg5+ Ke6 Bd5+ Kd7 Qh6 Kc8 Qf6 Bf1 Qcg6 Rc2 Bd2 Qd3 Nde3 Qa3 N3g2 Bd3 Be3 Rc1+
4NBBq/1Rnp1bp1/1Q1Pn3/1q2N1Nb/n4b1r/1Q3bP1/KB1k4/1R4qN b - - 0 2 legal: proof: c4 e5 b4 a5 a4 b5 c5 h5 c6 h4 f4 exf4 axb5 a4 b6 h3 g3 Nf6 b5 Ra7 Qb3 Ng8 Qd5 Rb7 Qg2 hxg2 cxb7 Be7 Nf3 Bd6 Ng1 Bf8 Kd1 Ke7 Kc2 Kf6 Kb2 Ke5 h4 Ke4 d4 f5 d5 c5 e3 a3+ Kb3 f3 h5 f4 h6 a2 h7 f2 Ka3 c4+ Kb2 f3 Na3 Nf6 Nh3 Nc6 b8B Bb7 Bd6 c3+ Kb3 g1N Bc4 f1B Bc5 Ba8 b7 c2 b8Q f2 b6 Bd6 b7 Be2 Bb4 f1B Nf2+ Kf3 e4 Ne8 e5 Nc7 Rh5 Qh4 Nh1 Nd4+ Kb2 Bh3 Rb1 Be6 Qg8 Ke4 b8Q Qh2 Bb3 Kd3 Nc4 Bb7 Rh6 Qh5 Ka3 a1Q+ Ba2 Qc3+ Bb3 Qh4 Bb2 c1Q Ka2 Qf1 Rf6 Qce1 Rf8 Bc6 Qb6 Bd1 Re8 Nge2 Rb8 Qh6 Rb7 Nc3+ Ka1 Na4 Ka2 Qg1 Bc5 Qb4 Qf7 Re8 h8N Qb5 Qg8 Qh3 Nf7 Qh8 Ng5 Bh5 Bca3 Rf8 Bb4 Rf4 B4a3 Be7 Bb4 Bf6 Bf8 Rh4 d6 Bcf3 Qf7 Bed5 Qg8 Na6 e6 Be5 e7 Nc7 e8N Bf4 Ne5+ Kd2 Qh7 Bg8 Bf7 Nde6 Qf5 Bh7 Bg8 B7g6 Qe4 Bf7 Qd5+ Nd4 Qc4 Nde6 Qb3
b1qb2r1/1p2Rprb/n1Q1R2N/2kBK2Q/5RR1/1P1QN3/r1q1rP2/3B3q b - - 0 2 illegal: Other
kr6/1B2pN1p/1n1q2b1/Q4b2/QbQb1n1P/2bRP2b/K3N1Nn/1N1B1R2 b - - 0 2 legal: proof: d4 a5 c4 d5 a4 g5 Be3 c5 Bf4 Ra6 Ra2 Rb6 Ra1 Rb5 cxd5 b6 Bd6 c4 f4 gxf4 Bc5 bxc5 axb5 Bd7 Nc3 Bh3 Nb1 Bc8 Kd2 Kd7 Kc3 Kc7 h4 Kb7 g4 f5 b4 a4 Kb2 a3+ Ka2 c3 g5 c4 d6 f3 d7 f2 d5 c2 g6 c1B d6 f4 e3 f3 g7 c3 b6 c2 b5 Bd2 Ne2 Qc7 d8N+ Ka8 d7 Nf6 g8B Bb4 Bb3 Qd6 Ne6 Ng4 d8N Nd7 Nf7 Nh2 N6f4 Bg7 Ng2 Bgc3 Qd3 Bd4 Qc4 Re8 Nbc3 Rh8 Rd1 Rg8 Rd3 c1N+ Kb1 Re8 Bd1 a2+ Kb2 a1B+ Kb1 Kb8 b7 Nb6 Rg1 Bf5 Rh1 Nb3 Ka2 Nc5 Nb1 Ne6 Rg1 Bac3 Rh1 Bbc5 Qa4 B5b4 Rg1 Nf4 Qa5 Kc7 b8Q+ Kd7 Qba7+ Kc8 Qd7+ Kb8 Qe6 Kb7 Qc4 Rb8 Qa3 Na4 b6 Ka8 b7+ Ka7 Qab3 Nb6 Nc1 Bg6 Bfe2 f1B Qa4+ Ba5 Rh1 f2 Rd2 Rg8 Qcb5 Bb2 Ne1 Bh3 Ng2 Nc4 Rf1 Bhf5 Qbb3 Bbc3 b8Q+ Ka6 Qf8 Ka7 Qd8 Rh8 Qdb6+ Ka8 Bd3 Rc8 Ne2 Rb8 Qc5 Nb6 Ba6 Bab4 Rd3 Ng4 Qca5 Nh2 Rh1 Bbc5 Qbc4 B5b4 Ne1 f1B Rg1 Bg2 Rf1 Bgh3 Ng2 Rg8 Qa3 Re8 Q3a4 Rb8 Bb7+
KQ4B1/1R1qN2p/RpQr1BPn/3n1b1P/R1r4r/N3n1r1/1Nn5/Nk4r1 b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 f4 gxf4 d6 Nc6 d5 Bg7 e3 Bd4 exd4 Nb8 Kf2 Kd7 Kf3 f5 h4 c5 g4 e5 a4 b3 h5 b2 a5 c4 a6 c3 a7 b6 g5 c2 g6 Qg5 Bc4 Qe7 Ra4 Nh6 Nd2 b1R Nb3 Ba6 Bb2 c1R Ne2 Rd8 Qc2 Nc6 Nc3 Nb4 Nd1 Bc8 Na1 Qg7 Bc3 Rb3 Nb2 Rg1 Qc1 Rb8 a8N e4+ Ke2 e3 Kf3 e2 Nc7 e1R Nb5 Nc2 Rh4 Rb7 Ra6 Re4 Rg4 Rc7 Rh4 Ke8 d7+ Ke7 d6+ Kf6 Bg8 Rc4 d5+ Red4 Rg4 Ke5 Rh4 Re8 d8R Re6 d7 Rd6 Rf8 Qe7 d8Q Qd7 Rf7 Ra3 Kf2 f3 Qc7 f4 Qb8 Ke4 Rg4 Qd8 Rb7 Bf5 Rh4 Qd7 Rg4 Rdd1 Bf6 Rg3 Rh4 Rh1 Rg4 Rh4 Qh1 Rd3 Qg2 Rd1 Qh1 Rdc6 d6 Rdg1 Qg2 Qg7 d7 Rd6 d8N Qd7 Na4 Kd3 Nb2+ Kd2 Nc6 Kc1 Ne7 Kb1 Qh1 Rgd1 Qe1 Rc1 Qe4 Rcg1 Qc6 R1g2+ Kf1 f2 Ke2 Rg1 Bd5 f1N Bg8 R3g2+ Kf3 Nfe3 Bd4 Be6 Ke4 f3 Ke5 f2 Ke4 Rc5 Bf6 f1N Rf4 Rc3 Ke5 Rg3 Rfa4 Bg4 Ke4 Rdd3 Ke5 Nd5 Ke4 Bf5+ Ke5 Qe8 Kd6 Rcc4 Qd8 Ndb4+ Kc7 Qd7+ Kb8 Rd6 Ka8 Nd5 Qb8 Nfe3 Na3+
qk2n2q/R1p2Q1b/2B2B2/1r2Q2r/2R3Bp/3RP1rr/B2b1NrP/2r3NK b - - 0 1 legal: proof: f4 a5 g4 f5 b3 e5 b4 axb4 c3 d5 c4 Nc6 fxe5 dxc4 Qc2 f4 Qb3 Nce7 Qd1 Nf5 gxf5 Qg5 Nh3 Qe7 Ng1 Qd8 Kf2 Kd7 Kg2 h5 a4 g5 d4 b5 f6 b3 e3 g4 a5 f3+ Kg3 c3 d5 f2 Kg2 h4 d6 g3 f7 c2 a6 b4 a7 b2 Nh3 b3 Qd4 Nf6 Nc3 b1Q Bb2 c1R Be2 f1R Nf2 Ne8 e6+ Kc6 d7 Kb7 e7 Qe4+ Bf3 Rh5 Ne2 Rb8 Bc3 b2 Ng1 b1R Qe5 Rb2 Ra2 Bg7 f8Q Ka8 Qf7 R8b5 Bd4 Kb7 a8B+ Kb8 Ra5 Qh7 Bfd5 Qh8 Ra7 Bb7 Bf3 Be4 Bc6 Bh7 Bg4 Qc8 d8R Rd2 Kh3 g2 Bd5 Rdc2 Ba2 Rcb2 Rd5 Qb7 Bc3 Qa8 Rd3 Bf6 Qf4 Bd4 Qe5 Rbc2 Bb2 Bc3 Ba1 Bd2 Bc3 Ng7 e8B Rcb2 Bc6 Ne8 Nf3 g1R Bd4 Rfe1 Bc3 Rgf1 Kg2 Re2 Ng1 Ree1 Nd1 Rf3 Nf2 Red1 Qe4 Re1 Bf6 Rh3 Qe5 Re2 Nf3 Rbb1 Rd1 R1b4 Ng1 Rf4 Rd4 Rff3 Kh1 Rfg3 Rf4 Bg6 Rc4 Bh7 Ne4 Reg2 Nf2 Bb4 Rd6 Bd2 Rd3
r7/R1KppQPN/1R1N2bb/B2qQ3/1R5k/2brQ1r1/B2P4/1Rnbr1b1 b - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 axb5 Nh6 c5 Nf7 b6 Nh6 b5 Ng8 c6 Na6 Ba3 Nc5 Bc1 Nb7 cxb7 Bh6 Ne2 Bg7 Ng1 Bf8 Ke2 Kf7 Ke3 Kg6 Kd4 Kg5 Kd5 h5 b8Q a5 g4 c5 f3 c4 b7 c3 b6 e3 Bb2 h3 f4+ Kh4 f5 a4 g5 a3 f6 c2 f7 c1R g6 e2 Ra2 e1B Qc2 h2 Ba6 Nf6+ Kc5 Rg8 Bb5 Ng4 Qe5 Nf2 b8R Bh6 f8Q Ba6 b7 Qa5 Ra1 a2 Qcc3 Rd1 Nh3 Nd3+ Kd5 Bf2 Na3 Bfe3 Ng5 Nc1 Nh7 Bg1 Qf7 Re1 Qce3 Rg7 Rb1 a1B Nc4 Qa2 Bd4 Bc3 Kc5 Qb3 Nd6 Qd5+ Kb6 Rg8 Ba4 Be2 Kc7 Bd1 Bb6 Rg7 Qef3 Re3 Bb3 Rd3 Qfe3 Bf2 Q5e4+ Bg4 Qg8 Na2 Q3d4 Kg3 Rhf1 h1R Rbe1 h4 Qf7 h3 Qee3+ Kh4 Ra1 h2 Rfb1 Re1 Qde5 Nc1 Ra7 h1B Ba5 Bg1 Ba2 Be4 Qff3 Rf7 g7 Rf5 Qf1 Rg5 Qf7 Rg6 Rg8 Rg5 b8R Bd1 R8b4 Rg6 Rgb8 Rg3 R4b5 Bf5 R8b6 Bg6 R5b4+
B7/p1rk2nR/K6p/2R1PQ2/1B2bqb1/NN1rQ1R1/P5rQ/bb1r1r1R b - - 0 1 legal: proof: f4 c5 h4 g5 e4 gxh4 b4 e5 bxc5 d5 Bb2 Nd7 Ba3 dxe4 Bc1 e3 Ke2 e4 Ke1 Ne5 fxe5 Bg7 Qe2 Bh6 Qd1 Bf8 Rh3 f5 Ke2 b5 d4 b4 g4 f4 c4 b3 g5 b2 g6 Bh6 g7 Bb7 d5 Qf6 d6 Ne7 c6 Rd8 c7 Bc8 c5 Rg8 c6 Nf5 d7+ Ke7 Rh2 h3 Qc2 Bg5 Bg2 f3+ Ke1 e2 Bd2 Qh6 Na3 Be3 Bb4+ Bc5 Rc1 b1B Qc3 Qh4+ Kd2 e1R Ne2 f2 Nd4 h6 Nb3 f1R Qd3 e3+ Kc3 e2 Qe3 Nd4 Kc4 Nf5+ Kb5 Qf4 Ka5 Rd1 Bf3 Rh8 g8R Rh7 Rg3 Ke6 Rc2 Bd4 Bh1 Ba1 Rc4 Re8 d8Q Rf2 Be4 e1R Qdd2 Ref1 Bf3 Bd7 c8R Rd8 c7 Re7 Ra8 Ng7 c8Q Re2 Ka6 Rf7 Rf2 h2 Rc5 h1B Rh2 Re7 Bb7 Bhe4 Rh1 Rh2 Qdf2 Rf7 Qg1 Rg2 Qh2 Ke7 Bd5 Bg4 Qf5 Ke8 Bb7 Rc7 Rc8 Ke7 Ba8 R8d7 Rh8 R7d3 Rh7 Ke8 Qg5 Kd7 Qf5+
1n1r1Q2/2n1pRK1/2rrPr2/q4NRQ/QB5R/Q1qNp2q/B1P5/qkb5 b - - 0 1 illegal: No proof kernel
1rn1rN2/Bq1ppq2/2kPPb2/QB2R2R/qr5Q/7N/B1qb3N/2rN1K2 b - - 0 2 legal: proof: c4 b5 b4 f5 g4 fxg4 Qc2 a5 Qb2 axb4 Qb3 Ba6 Qc2 b3 Qd1 b4 h3 g5 Qc2 g3 Qd1 Bb5 cxb5 Nc6 h4 g4 Rh2 Ne5 Rh3 Nf7 Rh1 Ng5 hxg5 Ra7 Nc3 Ra5 Nb1 Ra8 a4 h5 e4 c5 f4 b2 d4 h4 a5 g2 f5 b3 f6 h3 e5 h2 a6 g3 e6 c4 b6 c3 b7 c2 b8Q Nh6 g6 Nf5 a7 Bg7 d5 Nd6 Nc3 b1R Qh5 b2 Nd1 Nc8 Qc7 Rb8 Be3 c1B Nh3 g1Q a8B g2 Ba7 Qd4 Qa5 g1R Qh4 Qa4 d6 Bd2+ Kf2 Qb6+ Ke2 Kd8 f7 Re8 f8N Bf6 g7 Rc1 g8N b1Q Bd5 Rg4 Ra3 Rb4 Re3 Qbc2 Nh6 Qbc7 Kf2 Qg6 Re5 Qf7 Qb5 Qcc2 Ng4 Qch7 Ba2 Qhc2 Rg1 h1Q Nh2 Qb7 Qa5+ Nb6 Bb5 Kc8 Re2 Qa6 Re4 Kb7 Kf1 Nc8 Rg5 Qac6 Rh5 Qb6 Be2 Kc6 Ree5 Qb7 Bb5+
1K1Q3r/1b2n1p1/2Q1qNb1/2bBn1NB/6q1/1p2N2R/nPBbP2B/1R4nk b - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 h5 a4 hxg4 d4 cxd4 Nc3 a5 Bh3 b5 Bf1 b4 Nb1 Ra6 Bf4 Rb6 Bc1 Rb5 axb5 Qc7 Ra4 Qb6 Ra1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 g3 h4 Kg4 c4 f5 b6 g2 b7 Kg3 h5 f4 c5 a4 h6 d3 h7 a3 c6 b3 e6 a2 c7 d2 e7 f3 Kd6 f2 Na3 Qe8 Qe1 d1N Bd2 Nc6 b8Q Nc3 Rh4 Ne5 Nc2 Bb7 Nh3 Kh2 c8B g1B Kc7 d5 Qc1 d4 Bf4+ Kh1 Bh2 d3 Ne3 d2 Rb1 d1B Bf5 a1Q Qd8 Na2 Nf4 Bc2 Nfd5 Qf7 Kb8 Qe6 e8B Bc5 Rh5 Ne7 Nf6 Bd3 B1h3 f1N Rh6 Bde4 Bh5 Nd2 Qc3 Bb4 Qc6 Ndf3 Bfg6 Bc5 Bf7 Bg6 Bf5 Bb4 Bc2 Qg4 Bd5 Bd2 Nd1 Bc5 Ne3+ Nc1 Qb5 Qa6 Qc6 Rg8 h8N Re8 Bd1 Na2 Nf7 Rh8 Ng5 Qac4 Rh7 Qce4 Rh6 Ng1 Bc2 Qe6 Bg4 Qg2 Rh3 Qe4 Bh5 Qf3 Nge4 Qfg4 Ng5+
2QN2B1/1Q4rB/1q2QQ1K/2Bqq1P1/1rr1k1pR/N4rn1/6Pp/R3q1nb b - - 0 1 illegal: No possible last move, all moves rejected
3qnr1k/2Q1Q2Q/rpK1B1R1/2Rr1pr1/4q1N1/1b3P2/1b3BbP/BN3Qb1 b - - 0 1 legal: proof: c4 h5 d4 d5 cxd5 a5 g4 hxg4 e4 Ra7 b4 axb4 e5 Kd7 d6 Ke6 d5+ Kf5 e6 Nd7 exd7 Kf6 Nd2 Ra5 Nb1 Ra8 Kd2 e5 Ke3 g5 Ke4 Kg7 a4 c5 a5 f5+ Kd3 b6 Kc4 e4 Kb5 b3 a6 e3 a7 b2 Qd2 e2 Qf4 e1Q Bc4 g3 Be3 g4 Nf3 g2 Ra5 g1R Kc6 g3 Ne5 g2 Ng4 Nf6 f3 Ba6 Bf2 Ne8 Qc1 Qe4 Qf1 Kg8 Bb3 c4 Rc5 c3 Bc4 c2 Ba2 Qf6 d8Q c1R Qc7 Qd8 d7 Bg7 Bb3 Rd1 Bc4 Qe6+ d6 Rd5 Ba2 Qe4 Bc4 Qb8 d8Q Be5 Qf6 Qd8 d7 Kh7 Qfd6 Rf8 Qe7+ Kh8 Bb3 Bc4 Ba2 Bb3 Qf7 Rb8 a8Q Rc8 Qaa6 Ra8 Qae2 Ra6 Qe3 Qe7 d8B Bg7 Nc3 b1B Qg5 Bd3 Nb1 Be2 Qe3 Qh4 Bf6 Qg5 Ba1 Qd8 Qg5 Bb2 Qge7 Bd3 Qe2 Rd1 Re1 g1B Qf1 Rd2 Be3 Rg2 Bf2 Qd4 Re6 Qe4 Rg6 Rg3 Qc1 Bf1 Qd1 Bg2 Qf1 Bd1 Nh6 Rg5 Bc4 Bb3 Ng4 Rd1+ Bd5 Qe1 Be6 Rd5 Nc3 Qe2 Nb1 Qe4 Qh7#
bNq1n3/3Bb3/1R2qb1N/Qr1Np2R/r1P1k3/1Qb1P1K1/1pNQ1B2/4q2q b - - 0 1 legal: proof: g4 a5 d4 g5 h4 f5 b4 axb4 Bg2 c5 dxc5 Nc6 Bh3 Ne5 Bf1 Nf7 Nh3 fxg4 Ng1 g3 Rh3 g4 Rh1 Ng5 hxg5 Qa5 Nh3 Qc7 Ng1 Qd8 a4 Kf7 f4 Ke6 c4 Kf5 c6 b5 c7 h5 g6 d5 g7 h4 a5 h3 a6 h2 a7 b3 Bh3 b4 Qd2 b2 Ra3 d4 Ra6 d3 Qc2 b3 Bg2 Rh5 Nf3 Ke4 f5 Nf6 g8N Bb7 c8Q Ne8 f6 Rb5 Qd7 Qc8 Bh3 g2 Kf2 g1B+ Kg3 Bd4 f7 Bf6 Ne1 e5 Be3 B8e7 f8N Bd5 Qc3 d2 Nh6 d1Q Nc2 Qe1+ Bf2 Bb7 Qdd2 Qe6 Rg1 h1Q Rb6 Qc8 Nd7 Bc6 Nba3 b1Q Ne3 b2 Qb3 Qa2 Nac2 Qaa6 Nb8 Qe6 Nd5 Qac8 Qg5 Bb7 Rg2 Bc6 Rh2 Bb7 Kh4 g3 e3 g2 Kg3 g1B Bg4 Qec6 Bd7 Qe6 Qh5 Bc6 Qd1 Bb7 Nf5 Bc6 Rh5 Bh2+ Kg4 Bg3 Qd2 Bgh4 Qd1 Bb4 Qd2 Bhg5 Kg3 Bc3 Nh6 Be7 Qa3 Bgf6 Qb3 Rb4 Na6 Rb8 a8Q Ra4 Qa7 Ba8 Qc7 Rb7 Qc5 Rb8 Qa5 Rb7 Rb4 Rb5 Nb8 Rc5 Rb7 Rb5 Rb6
1qq3RN/1N1qB2R/QR3p1B/r2prP1K/1r1k1Rn1/Q2P4/Bqrb4/6n1 b - - 1 2 legal: proof: e4 b5 a4 g5 h4 gxh4 e5 d6 b4 Kd7 axb5 c5 Ne2 Ke6 Ng1 Kf5 e6 Bd7 exd7 cxb4 Ra4 Kf6 Ra1 Ke6 Ke2 Ke5 Kf3 a5 Kg4 h5+ Kg5 d5 f4+ Kd4 g4 e5+ Kf5 e4 c4 f6 Kg6 b3 c5 b2 f5 h3 c6 h4 d3 e3 g5 e2 b6 e1R c7 a4 c8Q a3 b7 h2 Qa4+ Bb4 Nh3 a2 Nf4 h3 Nd2 b1R Nc4 Re5 Na5 Nc6 b8R Nh6 Qa6 Ng4 Rb6 Qb8 Qa3 Rc8 d8B Bd2 Be2 Rb4 Nb7 Ra7 Rf1 h1Q Bd1 h2 Be7 Qg1 Ba4 h1Q Bb3 Qh8 Rf2 Qd8 Kh5 Qd7 g6 Qg3 Rb1 a1Q g7 Qb2 g8R Rc7 Ng6 Qbc8 Nh8 Ra8 Qb5 Ra5 Qa6 Nh2 Nd8 Nf3 Nb7 Ng1 Ba2 Qf4 Rg7 Qg3 Rh7 Qgg8 Rg2 Qb8 Rf2 Qgc8 Ra1 Re4 Rg2 Ne5 Rg8 Rc2 Rb1 Ng4 Ra1 Bc3 Bh6 Re5 Rf1 Bd2 Rf4+
2B1bk2/4q2N/K1pnPnn1/1p1QB2r/2P1qQ1B/4rR2/N2n1R2/1qR1q1B1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 e4 d5 Ba6 Bd6 Be2 dxe4 Bf1 e3 Qe2 e4 Qd1 Be5 fxe5 Qd4 Bb2 Qd3 Bc1 Qd8 Ke2 g5 a4 f5 d4 b3 h4 f4 e6 b6 a5 g4 d5 g3 a6 b2 d6 g2 a7 Nf6 h6 Nc6 h7 Ng4 d7+ Kf8 h5 Rg8 h8B Qh4 d8B Rg5 h6 Na5 h7 Nb7 Qd4 Rh5 Rh3 Nf6 Rf3 Nd6 Nc3 b1Q Nh3 Bd7 Na2 Be8 Ng5 g1Q Ba3 Qgh1 Bc5 Rc8 a8Q b5 Qad5 Ra8 Bg2 Ra3 Rf2 Rb3 Bf3 Qg2 c4 Qgg4 Qd2 Qf5 Bg2 Rd3 Qc1 f3+ Ke1 e2 Bb6 Qb2 Qf4 Re3 Rc1 Qb1 Kd2 e1N Bd4 Nd3 Kc3 Qfg4 Ba7 Qf5 Kd4 Ne5 Kc5 Ng6 Bh1 Ng4 Be5 Qf7 Bb6 Nf6 Bg2 Qe7 h8R+ Kg7 Rf8 Qh1 Rfc2 f2 Rd2 f1N Rf2 Nd2 Ba7 Nb3+ Kb4 Nd2+ Ka5 Re2 Rf3 e3 Ka6 Re1 Bad4 e2 Bg1 Qe4 Rf2 Qb1 Qd3 Qh4 Bb7 c6 Qd5 Qh1 Bc8 Qhe4 Rf7+ Kg8 Rg7+ Kf8 Rh7 Rh2 Rh3 Rh1 Rhf3 Rh5 Rh2 Rf1 Rhf2 e1Q Bh2 Rh1 Bg1 R1h3 Rfc3 Qf7 Nf3 Nh7 Bh4 Nf6 Ng5 Qe7 Rd3 Re3 Rdc3 Re2 Rcf3 Re3 Nh7+
rqB3B1/Rr1rQ2R/Pp1QQn2/N2q4/p2rkBBq/6qn/P5b1/K6N b - - 0 1 legal: proof: f4 a5 h4 g5 c4 gxh4 f5 d5 cxd5 e6 Rh3 exf5 Rh1 f4 b3 a4 b4 Bc5 Bb2 Bb6 Bc1 Ba5 bxa5 Be6 Bb2 Bg4 Bc1 Bc8 d4 Kd7 Kd2 Kd6 Kc3 f5 Kb2 h5 e4 c5 g4 f3 a6 f2 g5 f4 g6 h3 g7 b6 Qd3 c4 Qg3 h2 Be2 f1R Qe3 f3 Na3 h4 Nh3 f2 Bg4 Nh6 g8B c3+ Kb1 Nd7 e5+ Kc7 d6+ Kc6 e6 Kd5 e7+ Nf7 e8B c2+ Kb2 Rd1 Nc4 f1R Na5 Rf4 Nf2 Nf6 Bed7 Bb7 Bc8 h3 d7 Rh7 Qe7 Qc7 d8Q+ Qd6 Qdf8 Qb8 Qfe8 Re4 Rf1 h1Q Bf4 h2 Be5 Bc6 Rb1 c1Q+ Ka1 Qa3 Rg1 Qg2 Nh1 Qag3 Re1 Rd2 Rb3 Qh4 Rh3 Qgg3 Rc1 Bb7 Rc7 Rf4 Qd6+ Ke4 d5 Ng5 Qee6 Rd7 Qde7 Rd4 d6 Bc6 Ra7 Rb7 d7 Rf1+ Kb2 Rfd1 d8Q Rdd7 Qc5 R1d4 Ka1 Rdc7 Nf2+ Ke3 Qb4 h1Q+ Bd1 Qh8 Rh5 Rcd7 Qbd6 Nh3 Q8e7 Qe4 Bg4 Bd5 Rf5 Qhh4 Rh5 Qef3 Rh7 Qf5 Nh1 Bg2 Bf4+ Kd3 Qf8 Qfg5 Qfe7 Qd5 Be5 Ke4 Bf4+
3r1Bnn/1n3n1p/R1q2b1N/2q5/3NB2P/1P3BRp/K1Q1qqb1/B4RQk b - - 0 1 illegal: No possible last move
3q1q1q/1k3bpp/R5q1/1b4bP/4B1P1/QNKQN1n1/1nN2R1B/R1b2rN1 b - - 1 2 legal: proof: f4 c5 a4 b5 axb5 a5 d4 cxd4 e3 e5 Qg4 Ra6 Qd1 Re6 Qd2 e4 Qd1 Re5 fxe5 dxe3 h4 f5 b4 d5 c4 Kd7 g4 Kc7 e6 f4 c5 a4 b6+ Kb7 b5 e2 Kd2 e1Q+ Kc2 e3 h5 f3 e7 d4 e8N f2 Qe2 a3 Kb3 d3 Nf6 a2 Nd5 d2 Bg2 d1Q+ Qc2 f1B Bd2 e2 Rh2 Nh6 Ne3+ Nc6 Be4 Be7 Na3 Rf8 Rf2 Be6+ Kc3 Bf7 Qd3 Qb1 Nac2 Qec1 Be1 Nf5 Bd2 Bg5 Be1 Kb8 b7 Nb4 c6 Ng3 c7+ Ka7 Bd2 e1B c8Q Kb6 Qcc4 Qa3+ Qb3 Ka7 b8R Be2 Qc4 Nd3 Rb6 Nb2 Qd3 Qae7 Rc6 Kb7 b6 Qed6 Qa3 Qg6 Qdd6 Bb5 Qd4 Qd1 Qd3 Qf3 Rd6+ Kc8 b7+ Kb8 Rc1 a1Q Ra6 Kc7 b8N Qff5 Nd5+ Kb7 Nc6 Qf4 N6d4 Qfb8 Qc5 Qa3+ Nb3 Qbc8 Ra1 Qa8 Rf5 Bf2 Rff6 Bfe3 Rf2 Qab8 Be1 Bc1 Nde3+ Qd5 Rb1 Bg8 Rh2 Rf1 Ra5 Nh1 Ra1 Bf7 Ra6 Qh8 Qf8 Qe7 Bg3 Qe8 Qa3 Qef8 Bf5 Qd7 Rf2 Qdd8 Bh2 Ng3 Be4+
1B1N1bq1/2nR1qnN/kQ2rp2/3n4/1qP2R1K/1B4r1/q1p2P2/RR1n1NQ1 b - - 0 1 illegal: No proof kernel
RQ1qq2b/1pQ1P3/1R1n1r2/Q1p1r1r1/r1Nk4/N1N1q2B/KP2n1QB/3q4 b - - 0 1 illegal: No proof kernel
2N1bb1b/BQ1Bk2n/Kn4P1/1Qp1Nb2/2P1p3/2RR3n/Q2rr2n/B3b2B b - - 0 1 legal: proof: e4 g5 a4 d5 g4 dxe4 h4 b5 axb5 Nf6 f4 gxf4 g5 Qd5 g6 Qg5 hxg5 Ng8 Ke2 h5 d4 f5 b4 c5 b6 e5 d5 a5 d6 e3 Kd3 e4+ Kc4 a4 Kb5 h4 c4 e2 d7+ Kd8 g7 e1B g6 h3 b7 f3 Bb2 f4 Bg2 f2 Ra3 f1N Rd3 f3 Qd2 h2 Ba1 f2 Na3 Ra6 Qa2 Nf6 g8B Ke7 Nf3 Nh7 Ne5 Rd6 Be6 Rd5 Rg1 h1N Bg4 Nh2 d8B+ Ke8 Rc3 f1B Bb6 Nf2 Bd7+ Ke7 Bh1 Nh3 Rgg3 Rd2 Ba7 Be2 Rgd3 Bg4 Ka5 Bf5 Nb5 a3 Nd6 Re2 b5 Rg8 Be6 Bd7 b6 Be8 Bc8 Nd7 b8Q Rh8 b7 Nb6 Bd7 Rg8 Ka6 Rh8 Qb3 a2 Qc8 Rg8 b8Q Rg7 Qc6 Rf7 Qcb5 Rf6 Ndf7 Rd6 Qb7 Rd4 Nd6 Rd5 Bb2 a1B Qa2 Bg7 Rg3 Rdd2 Rcd3 Bh8 Bc3 Bb2 Bd4 Bc1 Ba1 Bb2 Rgf3 Bg7 Rc3 Bf8 Rfd3 Ng1 Nf3 Na8 Rb3 Bh8 Rbc3 Nh3 Ne5 Nb6 Nc8+
Q2NR3/3pRrP1/1k5n/4brr1/B1rNb1p1/Bn5r/1R1PKB2/RQ1n3n b - - 0 1 illegal: No proof kernel
N1R5/4bp2/4QPrP/1n1n2B1/5rBr/N3pQnR/bQN1rQ2/bn1K1k2 b - - 0 1 illegal: No possible last move, all moves rejected
3b1KR1/Bk1r3Q/2bpNn2/n2P3N/2Qb2rn/Bp2RB1b/rP1R4/4n2B b - - 0 2 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 a4 gxh4 d5 b4 Qd3 Qa5 Qd4 Qb5 axb5 cxd4 Kd2 Kd8 Kd3 Kc7 Kc4 h5 Kc5 a5 c4 b3 g4 a4 f4 h3 b6+ Kb7 f6 h4 g5 h2 f7 h3 g6 d3 g7 d2 f5 d1N f6 a3 Be3 a2 Nd2 Rh6 Ndf3 Rh5 Bg2 Nc6 Ne2 Rg5 Nfd4 Rg4 Re1 h1R Ng3 h2 Ne6 Na5 Nh5 Rg1 Rb1 a1N Bh1 Nc2 Bf2 R1g3 Re3 Ne1 Rc1 Ra7 Rc2 Ra6 Rd2 Rg1 Re5 Ne3 Re4 Nf5 Re3 Rf1 Bg1 Nh4 Bf2 Nh6 g8R Bg7 f8Q Bh8 f7 Bd4+ Kb5 Ra7 c5 d6 Qg7 Rfg1 f8Q R1g3 Qf4 Bd7+ Kb4 Ra6 Qh7 Bc6 Bg1 Ra7 Qf1 Rg7 Qc4 Ng4 Bf2 Nf6 Bg1 R3g4 Bf2 Be8 c6+ Ka8 c7 Kb7 Bg1 Bc6 c8B+ Ka8 Bf3 h1B b7+ Kb8 Be4 Bg2 Bf2 Bh3 Bh1 Ra8 Bd7+ Ka7 b8B+ Kb7 Ba7 Rf7 Be8 Rfg7 Bg6 Rf7 Bge4 Rfg7 Ng5 e5 Ne6 Rd7 Bef3 e4 Rc3 Bb6 Bc5 e3 Rcd3 e2 Re3 Bc7 Kc3 Neg2 Kd3 e1B Bb4 Bd8 Ba3 Rgg7 Kd4 Bf2 Kd3 Ne1+ Kd4 Ne8 Ke4 Nf6+ Kf4 Rgf7 Kg5 Rg7+ Kh6 Rg4 Re4 Bc5 Re3 Bd4 Qg6 Be7 Kg7 Bd8+ Kf8 Nc2 Bb6 Ne1 Bac5 Ra6 Qh7 Ra7 Qc3 Nc4 Bb4 Ra3 Ba7 Na5 Qc4 Ra2 Ba3
4b1r1/2K2BRB/1B1pPp1n/2n1N1B1/Qb2R2r/Q2P2R1/2N2k1r/1b2nb1n b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 axb5 Nf6 b6 Bh6 b5 Ng8 c5 Qf6 b7 Qb6 cxb6 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 h5 e4 f6+ Kf5 Kd4 g5 c5 e5 c4 e6 f3 g6 a4 g7 a3 Rh2 a2 Bd3 f2 Na3 f1B Rg2 c3 Rg3 h3 Qa4+ Bb4 Kf4 d6 Bh7 c2 d3 Nh6 g8B h2 Bf7 Nd7 b8Q h1B b7 h4 b6 h3 Qba7 h2 b8R Nc5 b7 Bd7 Rbg8 Bd5 b8B h1N R8g7 Be8 Bc7 Rb8 Rb1 a1N Bb6 Ba2 Bd2 Rd8 Re1 c1R Re5 Bb1 Re4+ Kd5 Q7a6 Nc2 Nf3 Ne1 Ne5 Rc2 Bc1 Rh2 Nc2 Bc6 Qa3 Rdg8 Q6a4 Be8 Be3 Ng4 Kf5 Rh4 Bg5 Rh2 Bhg6 R8h4 Bh7 Nh6+ Kg6 Bc6 Be8 Nf5 Kf7 Nh6+ Ke7 Bb5 Bf7 Bd7 Re2 Be8 Na1 Kd4 Kd8 Rh8 Kc7 Rg8 Reg2 Rf4 Rg4 Ke3 R2g3+ Kf2 Nc2 Rd4 Re4 Rc4 Ree3 Rch4 Re4
1bk2b1b/2qpQqN1/2rQ4/3nQqNb/3P4/2q1RpR1/3Q1PBB/1q2B1K1 b - - 0 1 legal: proof: c4 b5 b4 g5 h4 gxh4 Nf3 a5 Na3 axb4 Nb1 b3 Ng1 b4 e4 f5 Nh3 f4 Ng1 Ra5 Nh3 Rb5 cxb5 Nc6 Ng1 Nd4 Ba3 Kf7 Bc1 Nf5 exf5 Ke8 g4 h5 a4 c5 b6 e5 b7 h3 b8Q h4 g5 e4 g6 h2 g7 b2 f6 b3 d3 e3 a5 e2 a6 c4 a7 c3 a8Q c2 Qd2 h3 Qba7 Bb7 Qae3+ Ne7 g8Q Bf3 Qe5 Bh5 Qae4 f3 Na3 b1Q Bg2 b2 Nb5 Rh6 Qge6 Qc7 f7+ Kd8 Nd4 Kc8 Ra3 Nd5 Nf5 Qa2 Q4f4 b1Q Qe7 Rc6 Ng7 Qb4 Qh6 Qc3 Qhd6 Qac4 Bb2 c1B Rb3 Qe4 Ba3 Qf5 Bb4 Ba3 Ba5 Bc5 Bb4 Ba7 d4 Bb8 Ne6 Bg7 f8B Bh8 Bh6 Qcc2 Re3 Qf7 Bf4 Qcf5 Qd3 Bg6 Ng7 Bh5 Kd2 e1B+ Kd1 Bc3 Qd2 Bb2 Ke1 Ba3 Ba5 Bb4 Kf1 Ba3 Ne2 Bc5 Rg1 h1Q Nc3 Qh2 Ne4 Qg3 Bb6 h2 Ba5 h1Q Bb4 Qgg6 Ng5 Qc2 Bh2 Qgf5 Qd1 Qb3 Be1 Qc3 Qd2 Qb1 Bg3 Qh3 Bh2 Qhf5 Bh1 Kb7 Rg3 Kc8 Kg1 Ba3 Bg2 Bb4 Qde6 Ba3 Q7f6 Be7 Q6d6 Bf8 Qfe7
2n1Bn1q/b1R4N/2B1BQ1q/Bbq2N1b/p2p1R2/1n5k/PK1PQb1R/6q1 b - - 0 1 legal: proof: f4 a5 g4 e5 c4 exf4 c5 f5 c6 f3 Bg2 f4 Nc3 Ra7 Nb1 bxc6 Bh3 c5 Bf1 c4 Bh3 h5 Bg2 g5 Bf1 Rb7 h3 Rb5 h4 Rf5 gxf5 g4 Qa4 Rh6 Qc2 Rg6 Qd1 Rg5 hxg5 Ba3 Qc2 Bc5 Qd1 Bf8 b4 Ke7 e4 d5 f6+ Ke6 b5 c5 f7 g3 e5 Kf5 b6 Kg4 b7 d4 e6 c3 g6 h4 e7 h3 e8B c4 g7 h2 Bg2 c2 Na3 c3 Qe2 a4 Bb5 Nd7 b8Q Bc5 f8R Ne7 g8B Ba7 Rf6 Nf8 Bb2 c1N Kd1 Nb3 Kc2 Be6 Rf5 Nc8 Nh3 Bf7 Rac1 Bh5 Rhg1 h1Q Qbe5 Qd6 Ng5 Qh6 Nc4 Kh4 Qf1 f2 Be8 f3 Qfe2 f1B Be6 f2 Bgc6 g2 Nh7 Kh3 Ne3 Qh2 Qf6 Qb8 Qe1 Bb5 Qe2 f1Q Ba3 Qe5 Bb4 Qh2 Kb1 c2+ Kb2 Qf2 Ba5 Qh1 Rgf1 g1B Rg5+ Qf5 Rg7 Bf2 Rg2 Qg4 Nf5 Qgg7 Rfg1 Qh8 Rcf1 Qh2 Rg7 Qh1 R1g2 Qg1 Rc7 Bh4 Rf4 Bf2 Ka3 c1Q+ Kb4 Qc3+ Ka3 Qc4 Kb2 Qc5 Rh2+
3nr3/2NRR2B/2k4r/2q1p2P/1pPB1Qn1/bbbK2p1/4Q1Qn/2rNB1Q1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 d5 c4 Kd7 h4 e5 a4 b5 f4 g5 c6+ Kd6 h5 g3 f6 d4 c7 g4 f7 g2 a5 b3 a6 g3 f5 b4 a7 b2 f6 Ba6 c8Q Nh6 Nf3 g1B Qg4 Qc7 Kd3 Bb5 Nc3 b1R Ng5 Nc6 Qge2 Re8 a8Q Ng4 Ra7 Bh6 Bd2 Rc1 Be1 Nh2 Ne6 Nd8 Qag2 Qc5 Re7 Ba4 f8Q Bb3 f7 Bhe3 Nc7 Rh6 Qe4 Bd2 Q4g2 Bge3 Rg1 Rc2 Qa1 Rc1 Nd1 Bc3 Rh1 Ng4 Rh4 Nh2 Rg4 Bed2 Rg7 Bb2 Rh7 Ba3 Rg7 Bc3 Rh7 Rg6 Qh6 Rf6 f8B Re6 Qf4 Rh6 Qg1 Kc6 Qaa2 Rb1 Bh3 Ra1 Bf5 Rc1 Ke4 d3 Rd7 d2 Kd3 Qb5 Bc5 Qb6 Bd4 Qc5 Nf2 d1N Rhe7 Ne3 Bh7 Neg4 Nd1 Ne6 Qef2 Nd8 Qae2 Ba2 Qff1 Bb3 Qfg2+
1bBbr3/1K1bQRR1/1N4rp/1P1n1Q2/k4R2/n2ppr1B/4n1qP/NN3R2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 c5 axb5 cxd4 f4 g5 exf5 Na6 f6 Nb8 f5 Bb7 Bd2 Bc8 Bf4 gxf4 Kf2 d5 Kf3 Kd7 b4 e5 g4 a5 c4 a4 c5 h6 g5 a3 g6 a2 b6 Kc6 b7 d3 g7 Kb5 c6 d4 Ke4 f3 f7 f2 f6 Ra5 c7 Ra6 Bh3 f1R Qe1 d2 Nf3 d1N Nfd2 d3 Nb3 Bd6 Kd5 e4 f8Q Ka4 f7 Rf3 b5 Nd7 b8N Ne5 Nc6 Nc4 Nca5 Na3 Rf1 Bd7 c8B Bb8 Nc4 Ne7+ Kc5 Nd5 g8R Rb6 Rg7 N1c3 Qf2 e3 Qe7 Qg8 f8R Ra6 Rf4 Ne2 Rgf7 Re6 Rg1 Rd6 Rgg7 Rg6 Qf1 Qh7 Qf2 Re8 Qf1 Qg8 Qf2 Be6 Kc6 Bd7+ Kb7 Qh7 N1d2 Qg8 Rf1 a1B Nb1 Bf6 Na1 Bg5 Qe4 Bf6 Qh4 Be7 Qf5 Bd8 Qe7 Re6 Rh7 Qg2 Rhg7 Rg6 Nb6+
qN2B1kB/2Q4p/3br1p1/3b1Q2/Qp2RPP1/2b1r1RN/1r1nn2K/N3n2N b - - 0 1 legal: proof: e4 d5 h4 a5 c4 f5 cxd5 Qd6 b4 axb4 exf5 Qg3 Rh3 Qxh4 Rh1 Qh2 a4 Kf7 g4 b5 f4 e5 d4 c5 a5 e4 d6 b3 a6 c4 d7 b2 d8N+ Ke7 d5 e3 f6+ Ke8 a7 b4 d6 e2 f7+ Kd7 Ne6 g6 Ra3 c3 Qa4+ Nc6 Ng5 c2 Ne4 Ke6 d7 Ne5 d8Q Qh6 Kf2 e1B+ Kg2 Nf6 Rg3 Nd3 Nbd2 b1R Bb2 c1N Qc7 Bd6 f8Q Bb7 Nb3 Re8 a8N Ne2 Nb6 Bd5 Nd7 Bc3 Nh3 Ne1+ Kh2 Qh4 Ba1 Rb2 Nf2 Ne4 Nb8 Nd2 Rhg1 Rg8 Nh1 Qd8 Bg2 Rg7 Bf3 Rd7 Qf5+ Ke7 Be4 Qc8 Bd3 Qa6 Bb5 Qa8 Qg5+ Kf8 Qf5+ Kg8 Re3 Rc2 Re4 Re6 Rg3 Rde7 Be8 Ra2 Rc4 Re3 Re4 Re6 Bb2 Bg7 Bd4 Rb2 Na1 Bf6 Ba7 Bc3 Bd4 Bc5 Bf6 Bd6 Bh8
5rB1/1q1RK1pn/1r1P4/1nprb1B1/N5n1/7p/QRPB2Q1/Qb1kb1BN b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f5 gxf5 Qd6 e4 dxe4 axb5 Qg3 Ra2 Qxh4 Ra1 Qh2 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kd5 Kf4 d4+ e3 b4 c5 b6 a5 f6 e5 b5 h5 b7 h4 b6 a4 f7 a3 Nc3 e4 Rb1 a2 Bc4 a1R Na4 h3 Rb2 Ra6 Bd2 Bg4 Ne2+ Kf3 Ng3+ e2 Ke5 e3 d5 Ra3 Qa1 Qg2 Rd1 e1N Nh1 e2 Bg5 Bh5 Ke6 Bd6 f8Q+ Nf6 Qg8 Nc6 b8B Na7 b7 Be5+ Ke7 Nb5 Bd6 Bf7 b8B Rd3 Bdc7 Re3 Ba5 Ng4 Bd2 Rb6 Bd6 Rd3 Bb3 Bd4 Bh2 Be5 Bg1 Rd4 Qa8 Rf8 Qa7 Nd3 Qa8 e1B Bc4 Ke2 f4 Nf6 f5 Nh7 f6 Bg8 f7 Qe4 Bb3 Nf2 Qc6 Ng4 Qg6 Rfb8 f8Q Qg2 Qff7 Rf8 d6 Rd5 Rdb1 Bh4 Rf1 Be1 Qfe6 Qe4 Rf7 Qf3 Qef6 Qe4 Qa2 Kd1 Bc4 Qf5 Bb3 Qc8 Qe4 Qa6 Qg2 Qb7+ Ke6 B5g3 Qa3 Rd4 Ra2 Rd3 Qd4 Ne5 Qc4 Ng4 Rb2 Qa8 Kd7 Be5 Re7 Rd4 Qf7 Qb8 Ke6 Rd3 Rd7 Qb7 Ke7 Rd4 Bd5 Rd3 Be4 Rd4 Qfb3 Bc4 Bd5 Rd3 Bg8 Rd5 Qbg3 Ba2 Qgb3 Bb1 Qa1 Nd4 Qc4 Nb5 Qca2
2b2B2/3Npp1R/5Pq1/P3b1n1/BR2N1nB/1Kn1Q1r1/1p1b1rkr/1B1QR3 b - - 0 1 legal: proof: e4 d5 h4 g5 hxg5 a5 b4 axb4 c4 bxc3 exd5 Bf5 Be2 Bg4 Bf1 Bc8 d4 Kd7 f4 Kd6 a4 b5 g4 c5 f5 h5 a5 c4 g6 b4 f6 c2 Kd2 b3 Kc3 h4 g7 b2 g5 h3 g6 h2 Nf3 Bb7 Bh6 c1B Ne5 Nd7 Nd2 Nc5 Nd7 Ne6 Qf3 Qb8 Qe3 Ng5 Bd3 Bc8 Bc2 Qb7 Ba4 Rh7 Re1 h1R Ra3 Rh4 Rb3 Rf4 Rb4 Rf2 Kc2 c3 Kb3 c2 Ne4+ Kc7 Nec5 Bd2 Ne4 Qb6 d6+ Kb7 d5 c1N+ Kc4 Na2 Kb3 Rf5 Ne5 Rf1 d7 Rf2 d8Q Nc3 d6 Qb5 Nd7 Kc6 Qdb6+ Kd5 Qbd4+ Ke6 Qdd3 Kf5 Qc2 Kg4 Qd1+ Nf3 Ne5+ Kh3 d7 Qb7 d8B Kg2 Bb6 Ng5 Nd7 Qa6 Bc7 Qd3 Bg3 Rb8 Bh4 Rb5 Rf1 Rbf5 Re1 R5f3 Qb6 Rg3 Qe3 Nh3 Bf4 Nh6 g8R Bg7 Rh8 Ng4 Bh6 Bf8 g7 Ng5 g8B Qb1 Nec5 Qg6 Bg7 Rh5 Rh7 Rh6 Ne4 Rh5 Qee2 Bf4 Qe3 Be5 Bh8 Bh6 Bg7 Nf3 Bf8 Bhf4 Bg5 Rh2 Bh4 Ng5 Rh8 Qh6 Bh7 Qg7 Bf5 Qg8 Rh7 Qg6 Qa7 Bd2 Qe3 Nb5 Nec5 Nc3 Bb1 Bb7 Ne4 Ba6 Qa7 Bc8 Qe3
B1b2Q1K/rrRp2n1/n5rk/1Rp1Bb2/Nn1PR1B1/p5QN/6P1/2q1Bb2 b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Kf8 Kf3 Kg7 Kg4 f5+ Kh5 c5 d4 a5 e4 h3 e5 h2 e6 h6 b7 a4 e7 f3 e8B f4 b6 f2 b5 f3 Bf7 Na6 b8R Ne7 b7 Nc6 b6 Ra7 Qd3 Rg8 Nc3 Ncb4 Be2 f1B Bd2 f2 Nh3 a3 Rb1 Qf8 Bd5 Qf4 Be1 Qc1 Bg4 Be2 Rf1 h1R Qg3 Bd3 Na4 Bf5 Ra8 Kh7 b8Q Rg6 b7 Kg7 Rg1 f1B Qbf4 Kh7 b8B Kg7 Be5+ Kh7 Kh4 h5 Qff3 Kh6 Rb8 Be2 Rb5 Bed3 Rf1 Be2 Rf2 Bf1 Re2 Rg1 Ba8 Rh1 Qh2 Rg1 Re4 Rh1 Kg3 h4+ Kf2 Be6 Rb6 Nc2 Ng5 h3 Kg3 Bd3 Kh4 Qb2 Qhg3 h2 Bb4 Re1 Rd6 Bf1 Nh3 Re2 Bc3 Qc1 Be1 Re3 Qf6 Rb3 Rc6 Rbb7 Rb5 Ncb4 Rc7 h1N Qgf3 Ng3 Qf8+ Kh7 Qf2 Nf5+ Kh5 Nd6 Qg3 Bf5 Bf3 Ne8 Bg4 Rgb6 Bd2 Ng7+ Kg5 Ne6+ Kf6 Rc6 Kf7 Ng7 Be1 Kh6 Kg8 Rg6 Kh8
1n1kb2r/1bRnrQ1N/q2QN3/4BNq1/4p3/1p1qPB2/4P1Rp/r1Q1N2K b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 Rh3 gxh4 Rh2 Bh6 Rh1 Be3 fxe3 Ra7 Ba3 Ra6 Bc1 Ra8 Kf2 h5 a4 b5 g4 e5 Kg2 f5 d4 c5 g5 b3 g6 b2 d6 c4 d7+ Ke7 g7 b4 d5 e4 a5 b3 a6 c3 a7 f4 Nh3 c2 Nd2 b1R Ng5 Bb7 Rh2 h3+ Kh1 h4 Bg2 f3 Bb2 c1Q Nh7 f2 Be5 f1B Nf3 Qc4 Qc1 Qd3 Ne1 Nf6 Bf3 Qc8 d8N Nfd7 Ra3 Ra1 Rg2 h2 Ne6 Qcc4 Ra4 Qa6 d6+ Ke8 Nd4 Kd8 Nf5 Re8 Rc4 Re7 Rg3 Bh3 Rc7 Bg4 Rg2 Bh5 g8Q+ Be8 Qf7 Nc6 Rf2 Rc8 a8Q Ncb8 Kg2 Nf6 d7 h3+ Kg3 h1Q Rg2 Qf1 Kh2 Qf2 Qa7 Qg3+ Kh1 h2 Qb6 Qg5 Qd6 Qh5 Bg4 Qg5 Qg7 Bh5 Rc2 Bf7 Bc3 Bh5 Qda3 Kc7 d8N Bd5 Bf3 Bb7 Ne6+ Kd7 Bb2 Rh8 Qd6+ Ke8 Bd4 Nfd7 Rc7 Bf7 Be5 Bg6 Ned4 Kd8 Qgf6 Be8 Qg6 Rb1 Qf7 Ra1 Ne6+
B3B3/4q1b1/2RrQ3/nBK1R2p/P3R1b1/p2qn1nq/P2p1NQ1/1N1Rk2r b - - 0 1 illegal: No possible last move, all moves rejected
1rk1RN2/7B/bR2Qqr1/Q1B1R1p1/p1bnb3/2rPpq2/n1Q1P3/1N4KQ b - - 0 1 illegal: No possible last move
BR1n3b/3R1q2/7r/3bB1pP/1B1q1P2/K1NrQpkN/Qn1q3p/2Nr3N b - - 0 1 illegal: No proof kernel
N3N2R/b6q/1n1KB3/1B1Q1P1Q/RnN2nrB/1P1Brp1p/2prb3/kq6 b - - 0 1 illegal: No proof kernel
1k5r/1r3Q2/3bRq2/2N1P2Q/B1pb3n/1pp1BqQQ/1NRPbn1K/2n4R b - - 0 1 legal: proof: f4 a5 g4 d5 c4 dxc4 b4 e5 fxe5 h5 gxh5 axb4 Kf2 Kd7 Kg2 f5 a4 c5 e4 Kc7 h4 g5 a5 b5 e6 g4 a6 b3 e5 g3 e7 b2 e8R c3 h6 b4 h5 f4 h7 b3 h6 Nd7 a7 Ngf6 Na3 b1Q Nh3 Ba6 Qg4 Rb8 a8Q Qd3 Qaf3 Rb7 Nf2 Ne4 Re6 Bd6 Nc4 Qf6 Nb2 Kb8 Ra2 Nf8 Qg8 Bb5 Qf7 Ng6 Qh5 Qd5 Nfd3 f3+ Kg1 g2 Kh2 f2 Qh4 Rg8 Qg3 Nh4 h8Q Rd8 Qhh7 Rh8 Qh5 Qc6 Q7f7 Qd5 h7 g1B+ Kh3 Bc4 Be2 f1N Bf3 Rf8 h8Q Bd4 Q8h6 Rh8 Bg2 Ne3 Kh2 Nef5 Qhe3 Bb5 Qh3 Qc6 Qeg3 Nf2 Bf1 Qf3 Bg2 Qg4 Bc6 Qf3 Be8 Bc4 Ba4 Ba6 Nc4 Bb5 Ba3 Ba6 Ncb2 Bb5 Nf4 Be2 Nfd3 c4 Bc5 Re7 Qgg2 Rb7 Bb6 Ng3 Nc5 Nd3 Qg1 Ne4 Qgg3 Nef2 Bd8 Q6f5 Bg5 Nc1 Be3 Qg5 Nd1 Qd8 Rc2 Qdf6 Nb2
1knQK1Q1/B5rR/B1nb1r1b/1NBp1P2/3n2pB/r1p5/2P1N1Qq/1q4R1 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 e5 axb5 exd4 h3 Bb7 h4 Be4 h5 Bg6 hxg6 f5 Ra2 fxg4 Ra4 Nc6 Ra1 Nb8 Kd2 d5 Kd3 Kd7 e4 Kc8 f4 a5 b4 h5 g7 c5 f5 g3 b6 a4 e5 g4 b5 g2 e6 h4 e7 h3 e8Q a3 Qe7 a2 Be3 h2 Na3 Qc7 Qe2 Nc6 b7+ Kb8 Rd1 a1B Qd8+ Ka7 Bf2 Rh7 Bh4 Nge7 g8Q Rg7 b8B+ Kb7 b6 Nc8 Rc1 Bd6 Nb5 Bc3 Rd1 Bd2 Ba7 Bh6 Qd2 Qb8 Ne2 g1N Re1 Nf3 Rg1 Ka6 b7 h1R Bb6 Qc7 b8B Kb7 Rd1 Ra5 B8a7 Ra3+ Nec3 Ka8 Qg2 Rh3 Re1 Ra6 Re7 c4+ Ke2 d3+ Kf2 d2 Ne2 Rg5 Ke3 d1Q Rh7 Qb1 Bc5 c3 Bab6 Ra3 Kd3 Kb8 Ke3 Nce5 Kf4 Nd4 Ng3 Rb3 Bc4 Ra3 Ne2 Bg7 Bd3 Rg6 Bc4 Rf6 Kg5 Nec6 Kh5 Bh6 Bd3 Rf7 Kg6 Rg7+ Kf6 Bf8 Bc4 Qh2 Bd3 Bd6 Bc4 Rg5 Kf7 Re3 Bd3 Re6 Bc4 Rf6+ Ke8 Qa1 Na7 Rgg6 Ba6 Qb1 Nb5 Rg7 Ba7+
1K1QR3/Q4b1b/2bn1kqq/P1qp2Np/1Br1B2r/1R1Np2n/1N1P4/N3Q3 b - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 exf5 g5 c3 gxh4 Bb5 b3 Bb2 Bg7 Ba4 b5 Ba3 b4 Bc1 b2 Bb5 b3 Bf1 Be5 Rh3 Bd6 Rh1 Bb4 cxb4 Ra7 Rh3 Ra6 Rh1 Ra8 Ke2 Kf7 Kd3 e5 Ke4 c5 Kd5 h5 Kd6 e4 a4 e3 f4 h3 g4 h2 b5 c4 b6 c3 g5 c2 f6 Ra5 b7 Rc5 f5 Rb5 g6+ Ke8 f7+ Kf8 Bd3 Kg7 f8N Qe7+ Kc7 d5+ Nd7 Qg5 Qe1 Qf6 Be4 Nh6 Nc5 Ng4 Nd3 Nd7 b8Q Nc5 Ne2 Rb4 Nec3 Bb7 Nd1 Bc6 Na3 b1B N1b2 Nb7 Qa7 Nf2 a5 Re8 Rg1 h1Q Rg2 Re5 Kb8 Rc4 Rg4 Qe6 Rg1 Kf6 g7 Nd6 g8Q Nh3 Qd8+ Qe7 Rg3 Qg1 Rg8 Qg6 Re8 Qh6 Qdd7 Qf7 Qd8+ Re7 Ra2 Qfg6 Ra1 Kf7 f6 Ke6 f7 Kf6 Qc8 Re5 f8N Rf5 Ra2 Rf4 Ne6 Rg4 Ng5 Rh4 Na4 b2 Ra1 Ba2 Qcd7 b1B Nab2 Bb3 Qdc7 Bba4 Qcb6 Bd7 Ra2 Be6 Ra1 Ba2 Rb1 Bf7 Qbc7 Bc6 Qd8+ Kg7 Nb5 Bb3 Nd4 Bba4 Nb3 Bab5 Qdb6 Kf6 Na1 Ba6 Na4 Bc8 Ba3 c1Q Bb4 Bf5 Rb3 Qc3 Nab2 Qd4 Qbc7 Qc5 Nf2 Qg8 Qc8 Bh7 Nfd3 Qgg6 Qd8+
1Q5q/nN6/1q1N1rB1/Pp1Q1b2/Q1RpNP1n/B2p2r1/5rQ1/KR1kq1b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 h4 Kf6 f4 g5 c4 b5 Kc2 e5 Kb2 d5 a4 b3 a5 d3 h6 g4 c5 e4 h7 g3 h5 g2 c6 Ra7 h6 Bb7 c7 Bb4 c8N Nc6 Nc3 Bc5 Nf3 g1Q Ne5 Nge7 Nf7 Rf8 Rh3 Ng6 Nfd6 Nh4 h8Q+ Qg7 h7 Bg1 Qe2 Qb6 Qg8 Qh8 Ra4 Ra8 Rf3 Na7 Rc4 Ba6 Kb1 b2 Qeg2 Bb7 Ka2 b1R Ba3 Rb2+ Ka1 Rf2 Rg3 Bc6 Nb7 Bd7 Ncd6 Rf7 Rf3 Rg7 Be2 Rg3 Bd1 Rf8 Bc2 Qg7 h8Q Rf7 Qh5 Qh8 Qb8 Bc8 Re3 Be6 Re1 Rf8 Rb1 d4 Bb3 e3 Nce4+ Kg7 Qhf3 Kh6 f6 e2 f7 e1Q Bd1 Bf5 Rb3 Rc8 f8Q+ Kg6 Qe7 Rf8 Qe6+ Rf6 Qd5 Kh6 Qe2 Kg6 Qa2 Kh6 Rb1 Kg6 Bb3 Kh5 Qc2 Kg4 Ba2 Qe3 Qa4 Qe2 Rb3 Qe3 Qh3+ Kf3 Qg2+ Ke2 Bb1 Rf3 Bc2 Rg3 Bd1+ Ke1 Bh5 Qe2 Bf7 Kd1 Bg6 Qe1 Rb1+
5kB1/1B4RQ/4R1nq/pnB3r1/1qPP2N1/2pQN2N/1p2b2K/b2Brbn1 b - - 0 1 illegal: No proof kernel
3r4/b4RQb/2Bb3N/pPB1B2N/3rpqk1/3p1R2/1nn1r2P/N1qNQ1K1 b - - 0 1 illegal: No possible last move
Nnr2qRB/n2b1Nb1/6kP/2prp1Q1/n1PQ1q2/2R5/Qq2RpB1/4R2K b - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 d5 a4 dxe4 f3 exf3 axb5 Qd5 Bc4 Qd6 Bf1 Qd8 Kf2 f5 b4 Kf7 c4 a5 d4 c5 h4 g5 d5 g4 d6 e6 h6 a4 h5 a3 h7 f4 b6 a2 h6 Be7 b5 Nc6 d7 Nb4 b7 Bf6 b8Q Nc6 b6 Qc7 d8Q Na7 b7 Ne7 Q1d4 Bd7 Na3 Kg6 Bb2 Bg7 Nh3 g3+ Kg1 g2 Re1 a1Q Ng5 Nec6 Nb5 f2+ Kh2 g1N Re2 Qd6 Nc7 Qf8 Nf7 f3 Bg2 f1Q Qe7 Rg8 h8R f2 Qbe8 Rc8 b8R Qfc1 Rb3 Nb8 Na8 Rd8 Bc3 Qab2 Qeh4 Rc8 Qed8 Qcd2 Qa5 Qg5 Qa2 Qf6 Re4 Ne2 Re1 Qf4+ Kh1 Rd8 Bb4 Nc3 R4e2 Na4 Rc3 Re8 Ba5 Rc8 Bd8 e5 Be7 Qd8 Bf6 Re8 Rf8 Re6 Re8 Rd6 Rg8 Rd5 Re8 Bf8 Bh8 Bg7 Rg8 Qf8 Qg5+
1b2Q2R/1N1B1bR1/2Q2qPn/Pp1kr3/1pq1pQ2/3N1r1N/1BQ1n1K1/2nr4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 g4 Kd6 f4 h5 Kf2 b5 d4 c5 f6 e5 a5 h3 f5 c4 f7 e4 f6 c3 g5 h2 Bb2 c2 Bh3 c1Q Nd2 h4 Nc4+ Kc7 d6+ Kc6 d7 Rh5 Kg2 Kd5 Ne5 Nc6 Nd3 Qc4 Qc2 Bd6 f8Q Nh6 f7 Qf6 d8N Bb8 Bd7 Ne5 Qe8 Bb7 f8Q h3+ Kg3 Bc8 Nb7 Ra6 g6 Re6 Rf1 Rf5 Nf3 Re7 Ng5 Re6 Rf4 Re7 Rh4 Rf4 Rf1 h1R Rh5 h2 Nh3 Rf5 Kg2 Rf3 Rf2 Rd1 Rf1 Qd6 Qf4 h1N Rf2 Qf6 Rd2 Nf5 Rh8 Nhg3 Rf2 Ne2 Rf1 Qb3 Rh1 Re6 Rg8 Nh6 Rg7 Nc1 Rh2 Nc6 Rh1 Qc3 Rh2 Re5 Rh1 Kc4 d5 Nd4 Qe6 Nde2 Qc6+ Kd4 d6 Ba7 Bg4 Be6 d7 Bb8 d8Q+ Bd5 Bd7 Bf7 Qa6 Kd5 Qe8 Qc8 Rh2 Qc3 Qc6+ Kd4 Qcc8 Nf5 Ng1 Kd5 Rh8 Nh6 Nh3 Qc4 Qc6+
1n1nbNq1/1qN3kB/3nR1Pp/1Rp3Q1/2N3q1/K5PQ/p1rr1b2/1N2B2Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 a5 Kd2 f5 Kc2 Kf7 b4 c5 Kb2 h6 e4 f3 e5 f4 g3 f2 b6 a4 b7 c3+ Ka3 c2 d5 f3 d6 Kg6 e6 Bg7 b5 Qb6 d7 Ne7 d8Q Bd7 Bd2 Be8 Be1 Bd4 Bd3+ Kg7 Bh7 f1N g6 f2 Nf3 Nd2 Ne5 f1Q Nc4 Nec6 Qg5 Qe2 e7 Bf2 Rh2 Qa6 b6 Nd8 Ra2 c1Q+ Rb2 Qc2 Rb5 Ne4 Qd7 Rf8 Qh3 Nd6 Rg2 Qg4 Rg1 Nbc6 b8N Qb7 Nd7 Nb8 Qh1 Rf5 Nf8 Rd5 Qh3 Qce4 Rh1 Qbc8 b7 Rd2 Rg1 Qee6 Rf1 Qg8 Qh1 Nbc6 b8Q Qb7 Qc8 Nb8 Qd7 Qh4 Qdh3 Qg4 Rg1 Rc2 Bd2 Ra6 Re1 Rc6 Re6 Rb6 Ra5 Rbb2 Be1 Rd2 Rb5 Rbc2 Qhh4 Qa6 Qhh5 Qb7 Q5h3 Bf7 e8N+ Kh8 Nf6 Kg7 Nd5 Be8 Nc7 Be3 Nb2 Bf2 Ka2 a3 Kb3 a2 Nc4 Rd4 Ka4 Rdd2 Ka3
q4B2/3bN3/kR3PKp/2p1r1bR/1R1np2r/BN2R2P/2Nqq2Q/nQ2r3 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 cxd5 g6 a4 Nf6 axb5 Ng8 Be2 Qd6 Bg4 fxe4 f5 Qd7 f6 Qd8 Bf5 gxf5 Ke2 Kd7 Ke3 a5 Kf4 e5+ Kg5 c5 b4 Kc7 g4 Kb6 d4 e3 d6 h6+ Kg6 f4 g5 a4 d5 a3 d7 e2 d6 e1R Nf3 a2 Nfd2 e4 Na3 f3 Rb1 a1Q Nb3 f2 Nc2 f1Q Ba3 Kb7 b6 Be7 b5 Qf8 d8B Qc3 d7 Bd6 Be7 Nc6 d8R Bf4 Rd3 Qe2 Re3 Nd4 Qd2 Qd8 Bf8 Bd7 Rb2 Ra7 Qd1 Qa8 Qb1 Kb8 b7 Qcd2 h3 Ra6 Rg1 Ka7 b8R Re6 b6+ Ka6 b7 Re5 Rg4 Rh7 Rh4 Rh8 Rh5 Ne7+ Kg7 Nec6 g6 Rg8+ Kf7 Qf2 g7 Na5 Kg6 Qde2 Rc8 Qd2 b8Q Qfe2 Qc7 Bg5 Rb8 Qc1 Rb4 Qcd2 Nc1 Nab3 Qb8 Re6 Qh2 Na1 Nb3 Re5 Bd6 Rge8 g8N Rf5 Bf8 Ree5 Ne7 Rf4 Nc1 Rg4 Rb6+ Ka5 R2b4 Rh4 Rb7 Ka6 Nb3 Rc1 R7b5 Re1 Rb6+
6NN/1rk2K2/b3Pb2/p1b3RQ/QPB1Q1q1/q1rrnnN1/3pR2p/6BQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 fxe5 cxd4 Kd2 h5 Kd3 a5 Ke4 f5+ Kd5 f4 e4 f3 c4 d6 b4 Kd7 g4 d3 e6+ Kc7 e7 d2 e8Q h4 g6 f2 c5 a3 e5 h3 c6 h2 g7 a2 g5 Ba6 Ke6 d5 g6 d4 Nh3 d3 Ng5 Kb6 c7 Nd7 c8Q Nc5+ Kf7 Rb8 e6 Nd7 Rg1 Bc5 Qh5 d1R Be3 Ngf6 g8N Ng4 g7 Rb7 Qa8 Kc7 Nc3 d2 Rb1 a1B Nce4 Bf6 Ng3 Rc1 Bc4 Rc3 Rbe1 f1Q Re2 Qa1 Rgg2 Qa3 Bg1 Ra7 Qd5 Rb7 Qd4 Ne3 Qe4 Nb8 Qa4 Nd7 Kg6 Rh7 Nf7 Qf8 Nh8 Qb8 Qhf5 Rh3 Kf7 Qa7 Qh5 Ne5+ Ke8 Nf3 Kf7 Rc2 Ne7 Qa8 g8Q Rc3 Qgh7 Qd8 Ng8 Qd4 Qb1 Qg4 Qhe4 Bh4 Bf2 Rd3 Qh1 Bf6 Bg1 Rc3 Ke8 Nf5 Nf1 Qh4 Rg6 Ng5 Bb5 Qg4 Bc4 Rhd3 Ng3 Nf3 Rg5 Ne3 Kf7
2NBb1r1/nQ2KR1Q/3np3/qb3R2/Bpb1k1P1/p2RPRr1/1q1Qr3/4N3 b - - 0 1 illegal: No proof kernel
2BN3N/b2K2R1/R1p1Qq2/4Nrb1/Qq1P3P/3BBp2/n1prr3/1b1N1k1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 Ke5+ Kf3 Kd4 e4 f5 h4 a5 b4 g5 e5 c6 e6 a4 h6 g4+ Kg2 g3 Kf3 g2 h7 a3 e7 a2 e8B c3 b6 Qd6 b5 Nh6 b7 Qb4 b6 Ng4 d3 Bh6 Bd7 Rd8 h8N Nf2 Nh3 g1B Ng5 Na6 Ngf7 Bg5 b8Q Re8 b7 Re2 Rh3 Nh1 Qa4 c2 Be6 Bd7 Qe8 Rd8 b8N Be3 Bd5 Be6 Nc3 Bg1 Rg3 Rd6 Rb1 a1Q Nd1 Rd8 Be4 Ba2 Bh3 Rd6 Rb3 Bb1 Nd7 Bf2 Nde5 Rd7 Kg2 f3+ Kh2 f4 Ra3 Rd5 Bc8 Be3+ Kh3 f2 Kg4 f1R Kf5 f3 Ke6 Rff2 Neg6 Rf5 Nd8 Rd2 Ra2 Rfe2 Kd7 Bf2 Qe6 Qb2 Nc3 Ke3 Ne5 Bg1 Ra3 Kf2 Nd1+ Kf1 Ra2 Ba7 d4 Qf8 Bd3 Nb4 Ra3 Na2 Rg2 Qf6 Rg4 Be3 Rg7 Qb8 Qb4 Bg5 Ra6 Qb5 Qa4 Qb4 Be4 Rd3 Be3 Rdd2 Bd3
2b1R3/3NQ2r/1PPK1b2/2nRBRp1/Qqp1q3/2QB3n/krq2p1N/r3Q3 b - - 0 1 illegal: No proof kernel
q1N2K1N/R3BN1Q/Rp2k1b1/Q3p1R1/1rPB4/nP2bq1q/nr1p2r1/4R3 b - - 0 1 illegal: No extended proof kernel
4B3/Qq2BnnK/p1b2R2/1p1rN2n/3r1B1R/2B1q2P/1kp1P1Q1/N1b2b1N b - - 0 1 illegal: No proof kernel
NB2B2n/2r2RKB/pQQ1rnB1/1p1qpP2/5b2/1P2q3/1N1R1r1N/k3b1b1 b - - 0 1 legal: proof: e4 c5 a4 h5 g4 hxg4 d4 f5 dxc5 fxe4 a5 b6 a6 Bb7 axb7 Rh6 Qd5 Rh5 Qd1 Rh8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 h4 b5 c4 g6 b3 g3 h5 e6 h6 g2 c6 a6 h7 d4 c7 d3 c8B d2 c5 e3 c6 e2 c7 e1Q Nf3 g1B Nc3 Qd5 Nh2 Nc6 b8N Bc5 Bd7 Nd8 c8B Bb4 Qc2 d1R Na4 Ra7 Bd3 Rd2 Qc6 Rc7 Nb2 Nf7 Ra2 g5+ Kg4 Ke5 Kh5 Kd4 Kg6 g4 f4 g3 Kg7 g2 Be8 Ba5 Nd7 Be3 Rf1 g1B Nb6 Rf2 Bg6 Nf6 Na8 e5 Bcf5 Rf8 h8Q Qe2 Bc2 Be1 Qh6 Qd2 Qb6+ Kc3 Bh7 Q2d4 Bcg6 Q4e4 Bd2+ Kc2 Qc6+ Kb1 Bb4 Bc1 Bd6 Nh8+ Bd7 Re8 Qb6 Rc4 Bb8 Re6 Bde8 Qed3 Na4 Rc8 Rd2 Ka1 Nb2 Rc2 Qh3 Rc8 Qg2 Qe3 Qe4 Qc4 Qec6 Rc7+ Rd7 Qd5 f5 Bb4 Rd1 Be1 Rd2 Qe2 Rc2 Bf4 Rd2 Qe3 Rf7
3Qr1q1/1N1K3k/pQ1Pr3/2b1r3/Bq3p1n/qb1NB3/R1QN1pPQ/2R1n3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 h5 Kf3 c5 Ke4 f5+ Ke5 Kf7 d4 Kg6 b4 f3 e4 a6 b6 c4 b5 f2 b7 c3 d6 c2 d5 f4 b6 h3 d7 h4 Ke6 h2 e5 h3 Ra3 Nh6 Ne2 Nf5 Ra2 Rh6 Nd2 Nc6 b8Q Nb4 b7 Bc5 d6 Nh4 Qa7 Rb8 Qb6 Qg8+ Ke7 Nd3 d8N Kg7 e6 Kh7 Rg1 Ra8 b8Q h1Q Nb7 h2 Q8c7 Ne1 Qd8 Qg3 Ke8 Qg4 e7 Re6 Nc4 Re5 Be3 c1Q Nd2 Qa3 Nc1 Be6 Nd3 Bb3 Qc2 Qg8+ Kd7 Qb4 e8Q Rc8 Qdc7 Rb8 Qf8 Rbe8 Qd8 R5e6 Be2 Re5 Rf1 Qg1 Bh5 h1R Bd1 Qh2 Qff6 Qhg3 Qg5 Qf3 Qg3 Rh3 Qh2 Rg3 Qc3 Rg6 Bc2 Rge6 Rh1 Bc4 Ba4 Bb3 Rf1 Qfe4 Qc4 Qa3 Qc2 Qeb4 Rg1 Nf3 Rd1 Ne1 Rc1
B2NQr2/5R2/pp2QP1p/PN1Bbq2/nrb2q2/R1bk1n1R/2n5/2QK1Q2 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 h4 gxh4 bxc5 Bh6 Qd2 Bg7 Qd1 Bf8 e4 f6 e6 Nh6 e5 Ng8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 e8R d5 f4 h3 g4 d4 a4 Kd5 c4+ Ke4 g5 b6 f5 h6 f6 d3 c6 h2 c5 d2+ Ke2 Qc7 e7 Na6 g6 Be6 g7 Nb4 Qe1 d1N Nf3 Nb2 Bg2 a6 a5 Na4 Rd8 Rc8 e8Q Bd6 Rd7 Ne7 g8B Nf5 Na3 Nh4 Qf1 Ba2 Bf7 Rf8 Kd1 Ke3 Bc4 e4 Ng5 Kd4 Rg7 e3 Rf7 Bf4 Be4 Nf3 Ne6+ Kc3 Nd8 Bg3 Bb3 e2+ Kc1 e1B Kd1 Qe5 c7 Qf5 c6 Be5 Qe6 Kd4 Nb5+ Ke3 Qec4 Bd2 Qc1 Nc2 Be6 Bd5 Ra3+ Bb3 Rg1 h1Q Rg3 Qh2 Rh3 Qhf4 Bc4 Ra8 c8Q Ra7 Qe6 Rd7 c7 Rd4 Bc6 Re4 B4d5 Rb4 Qe1+ Kd3 Ba8 Bdc3 Qg1 Bc4 Qe8 Q5g4 c8Q Qg6 Qce6 Qgf5 Qf1#
b5Nr/Q1n4p/NR2k1q1/1n1Pr1n1/7Q/BKR1p1q1/rNB1Q1Pp/2Q3b1 b - - 0 1 illegal: No possible last move
3r2R1/q2b1QRp/1Br3Bb/PkpR2qn/1Q3PR1/pQ2Nr2/2n3KN/b7 b - - 0 1 illegal: No possible last move, all moves rejected
5q1N/QKR4p/BN6/p1qpn1q1/1B3kn1/3brPB1/r2Pb1nN/RN2Q3 b - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 cxb5 Bg7 a5 Bf6 Na3 Bd4 Nb1 Bb6 axb6 Kf8 Ra3 Kf7 Ra1 Ke8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kd5 e5 g4+ Kf4 g5 c5 b7 c4 g6 c3 g7 e3 b6 c2 b5 e4 Bc4 h3 Na3 e2 Qe1 e3 Nf3 h2 Nb1 Nc6 b8B+ Ne5 b7 Nh6 g8N Qf8 b6 Ng4 Ba3 c1Q Bb4 d6 Bc7 Bf5 b8N Bd3 b7 a6 Rg1 h1B Ne7 Bg2 Rh1 Bf1 Nd7 Re8 b8Q a5 Ba6 Qc5+ Ke6 d5 Nh2 Rg8 f3 Rc8 Qh4 e1N Qa7 e2 Nb6 Ng2 Qf2 e1Q Ng6+ Kg5 Qg1 Bfe2 Nh8 Qh4 Qe1 Kf4 Bb8 Qg5 Rg1 Rc7 Rh1 Qb5 Rg1 Re7+ Kd6 Re8+ Kc7 Qbc5+ Kb7 Rg6 Qf2 Rh6 Rc1 Rh4 Nf1 Rh1 Nh2 Re6 Rc3 Rc1 Qe1 Rc2 Bd6 Ra2 Rc1 Qe3 Rc7 Qc5 Be7 Nd7 Bf6 Re3 Bd8 Nde5 Bf6 Qgg7 Bh4 Qg5 Bg3+
1B1R1B2/2q3rp/BN1b1p2/B2nP2Q/r3Rk2/q1R1b1rn/3N2pP/1K3nQ1 b - - 0 1 illegal: No possible last move, all moves rejected
5bQn/1N1N1rPK/8/1b1p4/Rn2R1pP/pBQqr3/3Rq2N/Rnb1k1B1 b - - 0 1 illegal: No proof kernel
Q3rbk1/6pq/3qn1PB/1Q1N2N1/rP1Rn2R/p7/Qpb3r1/3qBRRK b - - 0 1 illegal: No proof kernel
K1b4Q/B1rq2pq/1bP3NP/p1q2RR1/4nNQN/4p1N1/4n2n/QBk2r2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 a5 c4 d5 b4 d3 h4 g3 b6 g2 h5 d4 f6 d2 h6 Ke3 f7 d3 b5 Na6+ Kc6 e5 b7 e4 b8Q Ra7 c5 Bf5 b6 Qe7 b7 Nf6 Ne2 g1Q Qe5 Qf2 b8Q Qg2 Rg1 Be6 f5 Nd5 f6 Qg6 Nbc3 Nf4 Ng3 Bc8 Qg4 Qh7 Nce2 Rc7+ Kb6 Qd7 c6 Nc5 Rb1 Bd6 Qa1 Rf8 Rb5 Be7 Bb2 d1Q Bd4+ Kd2 Bg2 e3 Be4 Qc2 Rf1 Re8 f8N Bd8 Ng6 Rf8 f7 Qc4 Bf5 Ne4 Nh4 Kc2 Bg6 d2 Rg5 d1N Rf3 Nf2 Bc5 N4h3 Rff5 Ng1 Nf4 Ne2 Qa8 Bb7 Ka7 Bc8+ Kb8 Kd2 Ba7 Qc5 Qb7 Kc2 Ka8 Kd2 Qb8 Kc2 Qf3 Ng4 Qg2 Nh2 Qf3 Re8 f8N Re7 Qh5 Rf7 Qg4 Rf6 Bf7 Kd2 Ba2 Kc2 Bb1+ Kc1 N8g6 Rf8 Re5 Rf5 Nfh5 Rf1 Nhf4 Rb7 Ref5 Bb6 Nh1 Rc7 Ng3 Ba6 Qg8 Bc8 Qh8
3kqBn1/1BQ3pp/1K2B3/2rp1N2/qPq3n1/1Nb1NRPr/3Q4/1Nn1bR2 b - - 0 1 illegal: No proof kernel
N4Bn1/q1BR1P2/rb1R1r1P/1Qp1Nnpb/B2Q2n1/1Rb1qp1R/1k6/5K2 b - - 0 1 illegal: No possible last move, all moves rejected
6b1/1q1Q1P2/Qb1N3p/PK1Bq1n1/R4B1r/1NpBk3/pN4b1/2rr1RNn b - - 0 1 illegal: No proof kernel
Nk2n1qq/1NQbRP2/rB3p2/4Rq2/6n1/2p1PRrQ/B2b1p2/NRn2K2 b - - 0 1 illegal: No proof kernel
qB1b2b1/5p2/1Nr1qb2/1B1RR1PB/2NQ3r/1K2N1kn/pnNp3P/2Qn4 b - - 0 1 illegal: Other
1n1k1KN1/3r1p2/1Bq3b1/1PQ1N3/1pRqp3/2rBQR1Q/3P2qR/b3bR1n b - - 0 1 illegal: No proof kernel
b1Q2KB1/1q1R1pnp/1b4P1/nQ1rrN2/5PB1/N3r1n1/1q1BQp2/k3RB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 d4 c5 a4 cxd4 axb5 e4 Qd3 Ba3 Qh3 Bf8 Qf3 exf3 Kf2 Ke7 Kg3 Kd6 Kg4 Kd5 Kh5 Kc4 b4 d5 e4+ d3 g4 a5 b6 f2 g6 a4 b5 a3 b7 a2 b6 d4 g5 Ba3 g7 Qd5 e5 Ne7 Kh6 Nbc6 b8Q Re8 g8B Bb7 Kg7 Na5 e6 Bc5 Ne2 d2 g6 d1R Qc8 d3 Ng3 Kb4 c4 Kb3 Rg1 d2 Nf5 Rb8 Rh1 Ba8 b7 Bb6 c5 Re1 c6 d1N c7 Re3 Rg1 Nc3 Bd2 Kb2 Na3 Ne2 Re1 a1Q Rg3 Re5 Rd3 Ng3 Rd4 Rd8 Rd3 Rd7 Kf8 Qb5 Rd4 Rdd5 Rd3 Ka2 Rd4 Qab2 Rd3 Nec6 e7 Nd8 e8Q Re3 Qe7 Rde5 Rd7 Ne6+ Ke8 Ng7+ Kf8 Qd5 Qe6 Qdb3 Qc4 Rd5 Qe2 Rde5 Qe8 Rd8 b8Q Qd5 c8B Qb7 Qc7 Qb1 Qc5 Ka1 Qcb5 Qc1 Re7 Rdd3 Bd7 Qb1 Qc8 Rdd5 Be6 Qc1 Rd7 Qb1 Nh4 Qc1 Bg4 Qb1 Nf5 Qc1 Nb1 Qb2 Na3+
2N2N1q/1Q2Pb1k/Q2qrnr1/1RQB2r1/2K5/2bNpN2/2p1pP2/Bn1R2q1 b - - 0 1 illegal: No proof kernel
1K4n1/2B1Pqr1/4Q2r/qp1N2p1/2Rr2k1/Q2Rb1Pn/3pb1q1/1Q2NBQN b - - 0 1 legal: proof: f4 a5 h4 g5 b4 c5 d4 cxd4 h5 e5 fxe5 axb4 Kd2 Qb6 Ke1 Qg6 hxg6 Bh6 Bd2 Bg7 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 h5 Kb6 d5 Kc7 b5 a4 f6 e4+ Ke6 c4 h4 c5 h3 g7 b3 g3 b2 a5 h2 c6 f5 a6 f4 a7 d3 Nf3 d2 Ra3 d4 Rd3 Rh6 Ne1 f3 Nc3 b1Q Nd5 f2 Qc2 d1R Bf4 Qa1 Qb1 Bc5 Rg1 Nf6 g8N Nh5 Ngf6 h1Q Ng4 Nd7 Rg2 Rb8 a8Q Ndf6 Qa3 Ng8 Rh2 Ra8 Rh4 Ra7+ Kb8 Rg7 c7 Bd7 c8Q Qg2 Qf8 Bb6 Qac1 Qa5 Qfa3 Be8 Nge3 Rd2 Nd1 Bg6 Rg4 Bf5 Rh4 Bg4 Qcc5 Be2 Qcc1 Kf7 e6+ Kg6 e5 Kf5 e7 Bc5 e8Q Bb6 Rh2 Kg4 e6 Bc5 Bc7 Nf4 e7 Nh3 Qc6 Bb6 Re3 d3 Qe6+ Kh5 Re4 Be3 Rb4 Rb2 Rd4 d2 Rd3 Rb4 Qc5 Bd4 Qa7 Bc5 Qab6 Rh4 Qa7 Nf4 Rh3 Qg1 Bg2 f1Q Rh2 Qff2 Bf1 Qgg2 N5e3 Qff3 Nf2 Bb6 Nh1 Qd5 Qf5 Qf7 Nd5 Bg1 Qb6 Bd4 Qbe6 Be3 Qh3 Qe4 Rf2 Qg2 Qh2 Nh3 Rf4 Rg4 Rc4 Rd4 Qf6 Kg4 Qg1 Qc3 Qg6 Qa5 Qe6+
k1rn3N/1rN1P1b1/3Bb1p1/2Pp3n/RR3pRK/bNq3QB/4Rn2/Q6q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 b4 a5 c4 d5 h4 Kd7 e4 Kc7 h6 Kb7 b6 d3 c5 d2 b5 f3 Kg3 a4 h5 f2 e5 g6 h7 a3 e6 a2 h6 Nc6 e7 Qd6+ Kh4 Ra7 Nc3 Kb8 b7 Qd8 Bh3 f1N Rh2 Na5 Re2 Nb3 Nf3 Qa5 Nd4 Ne3 Qe1 d1Q Qg3+ Qc7 Bd2 Ng4 Bf4 Na5 Nb3 N8f6 Bd6 Qh1 Rg1 a1B Na2 f4 Nb4 Rg8 h8Q Be6 h7 Nh5 Qb2 Nc6 h8N Bg7 Rgg2 Ra2 Na6+ Ka7 b8R Qa5 Rg1 Rc8 Ra8+ Kb7 b6 Nd8 Qc1 Bab2 Qa1 Ba3 Rgg2 Rb2 Rg1 Kc6 b7 Nf2 b8R Qc3 Rb4 Rb1 Qf3 Rb2 Rg4 Rb1 Qg3 Rb2 Ra4 Kb7 Rb8+ Ka7 Rbb4 Ka8 Rbe4 Rd2 Rab4 Rd4 Ra4 Rb4 Rc4 Rb5 Rcb4 Rb7 Nc7+
2Rbr1q1/qn2p3/QQ1r4/1np2kq1/BPN2B2/R2PRN2/1Kpn3Q/Qb6 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 f4 Kf7 b4 Kf6 g4 c5 b6 h5 b7 a5 Nf3 a4 Bd3 h3 Be2 a3 Nh4 c3 Qb3 a2 Kd1 h2 Kc2 Rh6 Re1 h1N Qb2 Nf2 Na3 Na6 b8Q Ne4 Bb5 Bg7 Qb6+ Nd6 Re3 Nc7 Nf3 h4 Ba4 h3 Nc4 h2 d3 h1Q Kb3 Qh5 Qh2 c2 Kb2 Be6 Qa6 Nb7 g5+ Kf7+ f6 Kg6 Bd2 Kf5 g6 Nb5 Qb6 Bh8 g7 Qg5 f7 Nf6 g8Q Ne4+ Qg7 Qg8 f8R+ Bf7 Qd4 Be5 Rc8 Bc7 Bc1 Bd8 Qc3 Kg4 f5 Rd6 f6 Kf5 Bd2 Bd5 f7 Rb8 f8Q+ Bf7 Be1 Nd2 Qfh6 Ra8 Bg3 Be6 Bf4 Bd5 Rb1 a1Q+ Kc1 Qa2 Qa1 Rb8 Rb3 Bf7 Nb2 Qa3 Rc3 Ba2 Rb3 Bb1 Qa6 Qa2 Ra3 Qae6 Nc4 Qd7 Kb2 Qc7 Qf2 Qb6 Qg1 Qa7 Qgh2 Ba5 Rc6 Re8 Rc8 Bc7 Qb6 Bd8 Qa6 Rd5 Qhc6 Rd6 Qcb6
Rn3nb1/q2PpB2/N2RQ1q1/2Q3p1/3QBp2/1K3bkP/2n2Brb/1N1Q3r b - - 0 1 illegal: No proof kernel
B4r1R/bKRp2n1/1b5P/P1B3pn/NNb1Rq1r/5kpQ/Q1q5/3N1N1q b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Ke3 Kf6 Kd4 g5 f4 b5 h4 b3 a4 b2 c4 b4 a5 g3 h5 b3 c6 e6 c7 Qe7 h6 Ra7 c5 Rh7 c6 Ra6 Be3 Rb6 Nh3 Rh8 Ra4 Ba6 c8N Qf7 c7 Bb5 Bg2 Rd6+ Kc5 e5 Qf1 e4 Nf2 Rd4+ Kb6 Bc4 Ne7 Nc6 c8N Bg7 Nd2 b1Q Kb7 b2 Nd1 Qc2 Nb6 b1Q Qe2 Qbc1 Nf1 Bf8 Bg1 e3 Qh5 e2 Qh3 Re4 Bc5 Nd4 Nc6 e1B Nb4 Ne6 Bf3 Ng7 Rh2 Qd3 Rc2 Bf2 Rc3 Qdc2 Bg2 Qh5 Bh1 Kf7 f6 Kg6 f7 Nf6 Bf3 Be7 f8Q Bd8 Qg8 Qh4 Bg2 Kh5 f5 Qf4 Qd5 Rf8 Qe6 Ng4 f6 Bg1 f7 Nf6 Kc8 Rd4 Ba8 Re4 Kb7 Be3 Qg2 Qh1 Qd5 Kg4 Qh3+ Kf3 Qd2 Rg8 f8R Nfh5 Re8 Rf8 Qd5 Rf7 Rh8 Rf8 Qg8 Qf6 Qf7 Rh4 Qfe6 Qf4 Qg8 Be2 Qa2 Bc7 Rc4 Bd8 Re4 Bc4 Ra3 Bc7 Na4 Bb6 Rd3 Ba7 Rd6 Bd4 Rc6 Bg1 Rc7 Be3 Be7 Beb6 Bc5
1K2k1q1/1n1p3n/r1RNP2p/1bB1p1BN/2RrPQbq/1Q3B1Q/3Qr3/2b5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 cxd4 f5 e5 Nf3 Qb6 Ng1 Qe6 fxe6 Kd8 Nf3 Ke7 Ng1 Ke8 Kf2 f5 Kf3 a5 g4 h6 b4 f4 Ke4 d3 Kd5 f3 e4 h3 c4 a4 b6 d2 g5 a3 g6 f2 c5 a2 g7 h2 b7 Ra6 c6 Rh7 b5 Rb6 c7 Ra6 b6 Ra3 Bg2 f1Q Nh3 Qa6 Nc3 Ne7+ Kd6 Qf1 g8Q Rb3 Qgg4 Nbc6 b8B Qg1 b7 Rb4 Ba7 Nd8 b8Q Ba6 c8Q Ng6+ Kc7 Bb5 Nf4 Rd4 Qh3 Ba3 Nh5 Rf7 Bc5 Nf8 Bf3 Nh7 Rb1 a1R Rb4 Qg6 Rc4 Qg8 Qdf1 d1B Bg5 Rf5 Qcb7 Rf7 Qd5 Bc1 Qb6 Rg7 Kb8 Nb7 Rg1 h1Q Qa5 Bc6 Nb5 Rg6 Qb4 Ra6 Qb3 Qh2 Rh1 Qf2 Rh2 Qh4 Rhc2 Rf6 Qf2 Rf4 Qfh2 Rg4 Qf4 Rg2 Na7 Bb5 Nc8 Rdd2 Qd4 Rge2 Qdc3 Rd5 Qcd2 Rd4 Bb4 Bb2 Rc6 Ba3 R2c4 Bc1 Bc5 Re1 Bh1 Bg4 Bf3 Re2 Nd6+
B1N1B1r1/2Bp4/1Q1P2b1/4R2p/bkpnn2P/N2br2R/2q1Q1R1/KBq3r1 b - - 0 1 legal: proof: d4 e5 a4 g5 f4 gxf4 c3 b5 axb5 Bg7 Ra6 exd4 Ra4 d3 Ra1 Bd4 cxd4 Kf8 Qc2 Ke7 Qd1 Ke8 Kd2 Ke7 Kc3 Kd6 g4 a5 h4 h5 e4 f5 b4 c5 Kb2 d2 g5 f3 d5 f4 e5+ Ke7 b6 a4 b5 c4 g6 f2 b7 f3 g7 Nf6 g8B Qa5 e6 Kd6 b6 Kc5 e7 Ng4 e8B Kb4 Bh7 Rg8 Rh3 Nf6 Ra2 Nc6 b8R Bb7 Bg2 f1R Ne2 f2 Nf4 Nd4 Ng6 Rg1 Ne7 f1B Nc8 Qa6 Qg4 d1B Bf4 Bb3 Bc7 a3+ Ka1 Be2 d6 Be4 b7 Qa4 Rd2 a2 Kb2 Ra5 Na3 Re5 Bf3 Bf1 Rg2 Bf5 Ra8 Re3 Ra5 Bb1 Re5 a1Q+ Kc1 Qc3+ Bc2 Qd2+ Kb2 Qc1+ Ka1 Be2 Bf5 B3c2 Bc6 Bed1 Qe2 Be4 Bg4 Bg6 Bf5 Qb3 Bd3 Ne4 Bc2 Qd3 Bd5 Qdd2 Bd3 Ba4 b8Q+ Kc5 Qa7+ Kb4 Ba8 Qdd1 Bc2 Qdd2 Bb3 Qdd1 Ba2 Bd3+ Bb1 Qdc2 Qb6+
NRnQr3/Q1NpB1pB/2p4N/1PqPR2n/1BN2rq1/2k5/1brb4/1K5n b - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 hxg4 a5 Qg5 a6 Bb7 axb7 Be7 b6 Bf8 b5 Qd8 h4 Ke7 d4 Kf6 Kd2 a5 Kc2 a4 e4 g3 e5+ Ke6 h5 Kd5 h6 f5 h7 g2 e6 f3 e7 f4 e8N a3 Ne2 Kc4 d5 g1Q Rh5 a2 Re5 f2 Ba3 Nc6 b8N f3 b7 Qc8 Na6 Nf6 b8B Na7 Qe1 c6 Nec7 Qg4 Qa5 Nh5 Ng3+ Kd4 Bd3 f1R Bf5 f2 Nd2 Bb4 Nc4 Re8 h8Q Bd2 Bh7 Qd8 Kb2 Nc8 Nf5+ Kd3 Qa4 Qe7 Nh6+ Kd4 Rae1 a1B+ Kb1 Bb2 Qf8 Ra7 Na8 Qc5 Bd6 Kc3 N6c7 Ra6 Be7 Ra5 Ka2 Ra6 R1e4 Rc1 Qg8 Rc2 Kb1 f1N Rf4 Nfg3 Rf8 Nh1 Qh8 Rb6 Rg8 Rf8 Qa7 Rf4 Re8 Nd6 Rb8 Nc8 Qd8 Ra6 Bg5 Ra4 Bh4 Rf8 Be7 Re8 Na5 Rd4 Nc4 Rf4 Bb4+
1qk4B/2qp1p1b/2NRPQ2/1r1B4/1B2p3/1nb2B2/P1Nq1R1K/n1QR2rn b - - 0 1 illegal: No proof kernel
r1bB4/1NbpP1RR/2N1p3/2Q4q/PnB1r1Np/4rn2/1q3QK1/bkNQ4 b - - 0 1 illegal: No proof kernel
Nrq5/BqP1K2b/1p3n2/1RQ1RpbP/n4bB1/1Q1N3R/2B1r1pB/2k4r b - - 0 1 illegal: No proof kernel
nBn1qkBr/1bp1R3/4rpbN/3QRp1Q/Nn6/1R4P1/5P1Q/q1b1K2R b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 a4 gxh4 axb5 e6 Qc2 Ba6 Qd3 Bc8 Qf5 exf5 b4 h5 e4 a5 d4 h3 g3 a4 e5 f6 e6 h4 b6 h2 d6 a3 d5 h3 d7+ Ke7 b5 a2 b7 Rh6 b6 Bg7 d6+ Kf8 e7+ Kf7 e8R Ra6 Re5 Rg6 Be3 Kf8 Bc4 Qe7 d8Q+ Qe8 d7 Bh6 Nc3 Ne7 Na4 Rg8 Nf3 Rh8 Bg8 Bf4 Rb1 a1N Rb3 Bg5 Bd4 Bc1 Ng5 Nc2+ Kd1 Be3 Nf7 Nb4 Ke1 Bg5 Nh6 Bc1 Rg1 h1Q Rbe3 Qf3 Rh1 h2 Re2 Qa3 Bc5 N8c6 b8R Nd5 b7 Ncb4 Ba7 Nb6 R2e3 Qa1 Rb3 Kg7 Ra8 Kf8 b8Q Bb7 Qbc8 Bd5 Bb8 Bf7 Qb7 Qa3 Qf3 Bg6 Qh5 Nec8 Re7 Qa1 Ra7 Nc6 Rb7 Na8 R7b5 Nb4 Rbe5 Na7 Qc8 Re6 Qb7 Nc8 d8Q Qb1 Qg2 Qa1 Rf1 h1B Qgh2 Bf3 Rh1 Bb7 Qd5
4q3/1Bp1bnBn/3ppP1r/2P2NB1/2kq3Q/1r1R1R2/1r3B1b/Q1K1Q1qN b - - 0 1 illegal: No extended proof kernel
r3b2n/q1pQ3p/5Knb/5QP1/R4BrR/2PR1Nkp/2q2bNn/2QBR3 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Ke2 Ke7 Ke3 Ke6 Kf4 a5 b4 d5 g4 e3 g5 h3 b6 a4 c3 e2 b5 e1N b7 d4 b6 d3 Nf3 d2 Na3 Bd7 Be2 Bh6 Nc4 a3 Ne3 a2 Ng2 Nc6 b8R Nge7 b7 Re8 Rf1 Kd5 e6 Ng6+ Kf5 Nce7+ Kf6 Ke4 Rc8 Bc6 b8R Nh8 Rh1 Neg6+ e7 Qd3 Rd8 Qa6 Rd3 Qa7 Rb3 Red8 Rb4+ Rd4 Qc2 d1Q Bf4 Qb1 Qc1 Be8 Bd1 Qc2 Ra4 Rc4 Rb1 a1B Rbb4 Bb2 Rf1 Bc6 Rg1 Ba3 e8Q+ Ne5 Qd7 Neg6 Nh2 Nf3 Rf1 Nd2 Nf3 Rd4 Rh1 Nf1 Rc4 Nh2 Re1+ Qe2 Rcb4 Bb5 Rc4 Bc5 Be5 Rf8+ Ke6 Qe3 Qd8 Nh4 Ng1 Nf7 f4 Qe2 f5 Nh8 f6 N4g6 f7 Bc6 Qd6 Ra8 f8Q Be8 Nf3 Bb6 Rcb4 Rc4 Qd7 Bf2 Qc5 Rd4 Kf6 Rc4 Ne3 Qc2 Bd6 Ne5 Qd5+ Kf4 Ng2+ Kg3 Q5e6 Rf4+ Qf5 Neg6 Bf8 Re4 Bd6+ Re5 Rf4 Re4 Rh4+ Rf4 Bc5 Rb4 Be3 Rg4 Bf4+
N2R1RQ1/2pq1Npb/1p6/2P3r1/RkN3NK/r1bB3P/1q1n2Q1/1B1n2nq b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 f5 gxf5 e5 dxe5 h6 Bg5 hxg5 c4 Ke7 f4 d5 Kf2 g4 Kg3 d4 a4 b3 e4 b6 a5 b2 c5 d3 e6 d2 e5 Rh7 h3 Qd3+ Nf3 Qc3 f6+ Ke8 f5 Nh6 e7 Kd7 e8N Kc6 f7 Bd6 f8R Bd7 f6 Bf5 a6 Nd7 f7 Nf6 a7 Ne4+ Kh4 g3 e6 g2 e7 g1N Na3 b1Q Nf6 Qcb2 Qe2 d1Q Ng5 Nd2 Nc4 Kb5 e8B+ Kb4 Ng4 Be5 Qg2 Bc3 Bd3 Rh8 Bc6 Bh7 Bce4 Qa4 Rd8 Qd7 f8Q Qd1 Qg8 Nf5+ Kh5 Ne3 Nf7 Qf1 Kh4 Nd1 Bb1 Qf3 Bed3 Qf1 Qe4 Qg2 Rh2 Qh1 Rf2 Rb8 Ra2 Rb7 a8N Ra7 Rf6 Ra3 Qg2 Bf5+ Kg3 Rh5 Ra1 Rg5 Kh4 Bh7 Rf3 Rb3 Ra4+ Kb5 Nh8 Ra3 Rf2 Qe6 Rff8 Qd7 Ra7 Kb4 Nf7 Be5 Ra6 Bc3 Ra4+
kQ2qn2/q1p1bP2/R1R5/1p1P1r2/NQ1R2B1/rbR1N3/rnB1p1K1/B3q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 a4 Kd7 f4 b5 Kf2 e5 d4 h5 g4 e4 f6 h3 a5 b3 f5 h2 a6 b2 f7 h4 a7 h3 d6 Kc6 d7 Kb7 g5 Rh5 f6 Be7 f8Q Rh4 f7 Bb4 g6 Rh6 g7 Qe7 d8R Nd7 Bd3 Nc5 Bc2 Rh5 Nf3 Qe8 Qg1 Na4 Nfd2 Nf6 g8R Be7 Nf1 Nd7 Nc3 b1Q Bb2 Qa2 Rg6 e3+ Kf3 e2 Ne3 Rd5 Rc6 Rf5+ Kg3 Qa3 Qf2 Qc5 Rhc1 h1R Qg1 h2 Kg2 Qa3 Ra2 Qc5 Ba1 Nb2 Raa6 Qb6 Na4 Qa5 Qg7 Nf8 Qg4 Be6 Rc3 Bb3 Qh4 Rc8 a8B+ Kb8 Qe4 Qb6 Bb7 Qa7 Rdd6 Rd8 Bc8 Rd7 Rdc6 Ka8 Rd1 Rd6 d5 Rh6 Rd2 Rh3 Qf2 Rd1 Rdd3 Rd2 Qb4 Rhf3 Rd4 Rh3 Nd1 Rhd3 Ne3 h1Q+ Kg3 Qe1 Kg2 Rf3 Bh3 Rf5 Bg4 Nc4 Bb1 Ra2 Bc2 Nb2 Qf4 Rd1 Qfd6 Rd2 Qdc5 Ra3 Qb6 Nd1 Be4 Rda2 Bc2 Nb2 Qb8+
1QN1K3/1qpnbpp1/2PB1kB1/r1Pq3b/RQ1Qn1R1/8/r2q1B2/3nQN2 b - - 0 1 legal: proof: c4 h5 d4 e5 f4 exf4 g4 hxg4 a4 b5 axb5 Rh5 d5 Qf6 c5 Qc6 dxc6 Rh8 Kd2 Ke7 Kd3 a5 Kc4 f3 b4 a4 h4 a3 e4 g3 e5 a2 b6 d5+ Kb5 f2 h5 g2 b7 d4 e6 d3 h6 d2 h7 Bd7 Nf3 g1N Na3 Be8 Nc4 Kf6 e7 Ke6 Nb6 Nh3 Bd3 f1Q Nh2 Nf2 Rg1 Nh1 Rg4 Nf6 Nc8 Rg8 h8Q Qf2 Nf1 Nbd7 b8Q Qh4 Bg6 Qe1 Qh4 Ra6 Qa4 d1Q Bf4 Nb6 Bd6 Bd7 e8Q+ Be7 Qd8 Qe3 Qe1 Ra7 Qa5 Rb7 Ka6 Qd5 b5 Ne4 Qac3 Qed2 Qb4 Nc4 b6 Ne5 Kb5 Ra7 b7 Bf8 Qdh4 Be7 Qhf2 Ra3 Qfe3 Kf6 Qed4 Rd3 Ka6 Nhf2 Qa8 Rh8 b8B Rh2 Kb7 Ra3 Ba7 Ra5 Bb6 Nd1 Qb8 Rg2 Rc1 a1Q Rc4 Ra4 Ba5 Qab2 Qb6 Ra2 Ra4 Rg3 Bb4 Rga3 Bc3 Qb1 Qb2 Bf5 Qdb4 Bd7 Bd4 Bf5 Bf2 Be6 Rh4 Bg4 Q2d4 Bh5 Rg4 Ke6 Nb6 Nd7 Kc8 Qbb2 Ra8 Ra5 Ra7 Bf8 Kd8 Be7+ Ke8 Qb1 Nc8 Qbb2 Qbc3 Qb5 Qcb4 Qb7 Qdc4 Kf6 Ra6 Rb5 Ra4 Ra5 Qd4+
b3qn1b/1p1BBQ2/N1R1q1r1/2p1Pn2/1rQNr1Q1/1R1pb2k/4P3/5KQB b - - 0 1 illegal: Other
1r6/Rpn2B2/bq1QNk1n/P1bQ4/pN3BB1/3P4/1rb3Kp/1nN1q1RN b - - 0 1 illegal: No proof kernel
BKn1Q1Q1/1pr3n1/N1Bk1pBb/2BP1q2/Q3b2R/2R2rbq/3P1pN1/5n2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 g5 Ke5 f3 a4 f2 h4 c4 e4 g4 h6 g3 a5 g2 a6 c3 h5 c2 h7 b3 a7 b2 h6 Bb4 Ne2 g1B Nbc3 b1Q Na4 Bh2+ Nf4 Qh4 Bb5+ Ke7 Ba3 c1N Bc6 Nf6 Nc5 Ne8 Na6 Bf5 Qa4 Rf8 h8Q Ng7 h7 Ne2 Qg8 Qh3 h8Q Ng3 Ng2 Qc2 Rac1 Nf1+ Nf4 Qb1 Rc3 Bg3 Qh5 Rc8 Qhh8 Rc7 Rh2 Bh4 Ng2 Bg5 Qh5 Bh6 Rh1 Qhd3 Rh4 Qh3 Kd4 f6 e5 Bd3 e6 Be4 Qhe8+ Kd6 e7 Nd7 Kc4 Nb6+ Kb5 Rac8 a8B Qc2 Qg6 Qb1 e8B Qc2 Bf7 Re8 Qh5 Nc8 Bg6 Re5 Qe2 Rf5 Qe1 Rf3 Qe3 Ne7 Kb6 Qb1 Ka7 Nc8+ Kb8 Bc5 Nb4 Bd4 Qe2 Be5 Qe1 Bg3 Na6+ Ke5 Bc5 Qd3 Bb6 Kd6 Qe2 Qd4 Qe1 Qe5 Ba7 Qef5 Bd4 Bb1 Qee8 Be4 Bc5#
QrR5/np3B2/rP1p1kn1/1bRqn1RP/2Q2N1r/1Q4B1/1N2pKb1/2qQ4 b - - 0 1 illegal: No proof kernel
6bq/1pQKb1q1/p1B4p/1rQRb3/4qn1n/1QN5/1P1PN1kQ/B2RRr2 b - - 0 1 illegal: Other
1N3KRQ/rpr1N1pR/3r2Pb/2qq1B1Q/b3P1n1/2Bn3Q/1p2RQ2/2k1b3 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 h5 Qc2 d5 cxd5 e5 Qf5 exf4 Qxh5 Qg5 Qh7 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 a4 Kb3 h4 c5 d4 f5 e4 Kc2 g4 c4 d6 f3 d7 f2 Ke6 f4 Kf7 b3 a5 f3 g5 c3 d5 b2 h5 Nc6 d6 Nb8 g6 Na6 h6 Be7 Bh3 f1Q Bf5 f2 Nf3 Qe2 Ne5 f1R Bd2 Qg4 Nc6 Qf3 Nb8 Qb6 d8Q Rg1 d7 Qd3 Qf8 Qc5 d8Q Bd7 Qc8 Nb4 a6 Ba4 a7 Nf6 Rh2 Rg8 Re2 Rc1 Qh8 Qd7 h7 Ng4 Be1+ Kd1 Bd2 c2 Bc3 Qd2 Qd7 Bg5 Qd3 Bh4 Qh3 Be1 Ra3 Qce3 Qc5 Qg1 Qf2 Rd8 Qh5 Rd6 Kf8 Be8 Ra5 Nd3 Rd5 Nf4 Rd3 Ba4 Rh3 Qd4 Nd2 Nd3 Nc4 Qd5 Na5 Qa2 Nc6 Qd5 Qf1 Qgc5 Ne7 Rb1 Qf2 c1B Rh2 Bh6 Qg5 Bd2 Bd4 Qc2 Qg8 Qe5 h8Q Nc1 Qb3 Be1 Kf7 Qa5 Qbe3 Nd3 Na6 Rc1 Rh5 Qe5 Qh3 Qb5 Qgh4 Bf4 Rh7 Bh6 Qh5 Qc7 Bf6 Rc3 Bd4 Kc1 Be5 Qca5 Bd4 Rc7 Bc3 Rad8 a8R Qd5+ Be6 Qac5 Rc8 Rcc6 Rb8 R8d7 Rg8 Rdc7 Nb8 Ra6 Kf8 Ra7 Bf5
Q7/qpn1p1N1/2qr1r1R/PpR1KR1B/Q3B2B/n6q/BPbk3r/2bN4 b - - 0 1 legal: proof: e4 d5 h4 f5 c4 fxe4 cxd5 g5 hxg5 a6 Qe2 Be6 Qd3 Bc8 Qb5+ axb5 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 a4 Kf4 g4 h5 g6 e3 g7 c6 d6 h4 d7 e2 g5 e1R a5 h3 g6 h2 Nc3 Re6 Bg2 Ra7 Nf3 Qc7 d8Q Re3 Nd1 Ra6 Nh4 Be6 Nf5 Bb3 Be4 Nh6 g8B Ba4 g7 Bc2 Bf7 Ng4 g8B Ne5 Bh5 Bh6 Ba2 Rf3 Ng7 c5+ Kd5 c4 d4+ Re3 Qd6 c3 Qb4 Qb6 Qa4 Nc4 Bd2 Qa7 Rc1 Rg6 Be1 Na6 f3 Rd3 Bh4 Rg3 Ke6 Na3 d5 Bg5 d6 Nc7+ Kf7 Rh6 d7 Rdd6 d8Q Rg2 Qa8 Rhg6 Nf2 Ke3 f4 Rge6 f5 Kd2 f6 Bf4 Nd1 Rf2 Rg1 h1Q Rg6 Rh2 Rh6 Bg5 Kg6 Qg2 Kf5 Qh3+ Bg4 Be3 f7 Rf6+ Ke5 Bb3 f8R c2 Rb1 c1Q Bh5 Qc6 Rc1 Bg5 Rc5 Bc2 Bh1 Kd3 Bg2 Bc1 Be4+ Kd2 Rf7 Rg6 Rf1 Rgf6 Rf5
k3b1N1/P1Q1QNp1/1p2B1p1/2n5/q5Pq/br3QQq/B1RrR2r/K1n2N2 b - - 0 1 illegal: No extended proof kernel
4n3/pb1r2bq/1Q6/2NBB1P1/1rB3rb/BNp3Rq/R1P1p3/K1kNQn2 b - - 0 1 illegal: No possible last move
r1nb1qn1/pR1Q1b2/B2Q2q1/4PNb1/r3NB1Q/2pR4/1PQ1p1NK/2q1k3 b - - 0 1 illegal: No possible last move
1nR2k1q/p3Ppn1/bP2Q1q1/1rQR1R2/3pKB1b/nR2N3/B6r/b4BN1 b - - 0 1 illegal: No possible last move
R3QB2/p1P1Qn1P/Q2q2r1/K2B1n1r/b4b1Q/2N2N2/2q1rpp1/q1kR2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 e4 Kf6 c4 Ke5 b4 f5 h4 g5 h6 d5 b6 f3 h5 Kf4 b7 d3 Kc3+ d2 e5 Ke3 b5 f2 b6 f4 h7 g4 e6 g3 c5 d4+ Kb4 f3 h6 g2 e7 d3 e8Q+ Ne7 c6 Nd7 b8B Ne5 b7 Nf7 Qa4 Bd7 Ba3 d1R Bh2 d2 b8Q Re1 c7 d1Q Ka5 Qc2 Bc4 f1Q Qbb4 f2 Bd5 Re2 Nc3 Kd2 Rc1 Rg8 h8Q Nf5 Qbe7 Rg6 Qc4 Qfd1 Qa6 Ba4 Qhf6 Qe1 Qh4 Qd6 h7 Rb8 Rb1 Bh6 Bc5 Rd8 Rb8 Qa1 Ra8 Kc1 Bb4 Bf4 Nf3+ Kb2 Bg1 Kc1 Bc5 Rb8 Bd4 Rb6 Bg7 Rg5 Bh6 Rh5 Bf8 Qd8 Rh3 Rg6 Rg3 Qd6 Rg4 Bd2 Rd4 Bf4 Rd1+
2B2BR1/2B2nbb/qR4kp/2N3N1/2rp1RQ1/1QbrB1P1/bn3pPK/b7 b - - 0 1 illegal: No proof kernel
1bnNR1bq/B2n3P/3r4/2QpbQ2/K1R3BR/1B5b/1N1p1P1p/br1R2k1 b - - 0 1 illegal: No possible last move, all moves rejected
1rN1r2k/6pn/P7/1P2Bqb1/K2QB1B1/1B4p1/prQ1rQr1/1NR1nR1b b - - 0 1 illegal: No proof kernel
3RB3/Brqrnpr1/K2Qk2b/1NR1p3/1Np2Rb1/1Q4Pr/1PR2rB1/1n6 b - - 0 1 illegal: No proof kernel
R3Bn2/1bNPpB2/1p1bPN2/2qr3R/Qpb2n2/3B2r1/1K1b1NB1/Qb2k3 b - - 0 1 illegal: No proof kernel
2KQ3N/2bprQ1k/PqP5/1rNb1N2/1B2n1p1/R1bR2bB/nR3pb1/R7 b - - 0 1 illegal: No proof kernel
1R1N2b1/1bp2Qpk/Rb3nqr/nK6/2P1b2Q/5p1N/1RP3Nb/2r1BB1R b - - 0 1 legal: proof: g4 b5 a4 e5 axb5 h5 f3 hxg4 f4 exf4 d3 Qf6 Nc3 Qd4 Nb1 Qc4 dxc4 Rh4 Na3 Rh6 Nb1 Rh8 Kd2 f5 Kd3 Kf7 b4 Kg6 e4 d5 h4 a5 h5+ Kh7 b6 d4 h6 f3 b7 f2 e5 a4 b5 a3 b6 a2 e6 g3 e7 f4 e8Q g2 Qe6 Nf6 Qf7 Bc5 Bb2 Be6 Nh3 g1Q Qe2 Nc6 b8R Qg6+ Qe4 Na5 b7 Bb6 Bc3 Bd5 Kd2 d3 Bb4 Ra7 Kc3 d2 Qe1 d1B Nd2 Bh5 Nf3 Be4 Nh4 Bg4 Ng2 Be6 Rb1 a1B+ Rb2 f3 Ra8 Bc6 b8R Bb7 Qe4 Ra6 Qf4 Rd8 Qg5 Rd1 Qh4 Rc1 Ra7 Nc6 Kb3 Na5+ Ka4 Bed5 Kb5 Be4 Rb3 Be5 Be1 Bd6 Rb2 Bh2 Bd3 f1B Raa8 Be2 Ra7 Bd1 Bf1 Be2 Raa8 B2d3 Ra7 Be3 Raa8 Rd6 Ra6 Bb6 Bg3 Bed5 Bf2 Ne4 Qfe7 Qh5 Kb4 Kg6 h7 Bg8 h8N+ Kh7 Nf7 Rh6 Nd8 Nf6 Be1 Bde4 Qf7 Qg6 Kb5
4bQR1/1P5R/2qpbpN1/3k3K/2b2pN1/nrbR1Qr1/1R1PbB1N/5n1B b - - 0 1 illegal: No possible last move
2QBK1n1/1p1rnQ1b/rQb3NQ/1P1bB2B/3b2p1/4PpN1/2bk1R2/2q4R b - - 0 1 legal: proof: g4 c5 d4 cxd4 f4 e5 Nc3 exf4 Nb5 h5 Nxa7 Nc6 gxh5 Nb8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 a4 f5 b4 g5 b5 d3 a5 d6 h6 d2 a6 Ke3 Kd5 f3 c4 f2 c5 f4 h7 Bg7 c6 Bb2 c7 Qf8 h5 Bg7 h6 Be5 Ra2 Ba1 Nc6 Bd4 a7 Bd7 Ne7 Bc6+ Ke6 d5 Ng6 Qc5 Kf7 f3 c8Q g4 Qb3+ Qc3 Ba3 d1B Be7 Bc2 Bd8 Kd2 e3 Qc4 Bd3 f1B Ne2 Qc3 Kf8 Qa1 Bc4 Qc1 Ng3 Bd3 Rb2 Bc5+ Kf7 d4 Qc7 Bde4 Qb6 d3 Be6 Bcd5 Ke8 Bd4 Bf7 Nc6 Qc4 Nce7 Qb3 Rc8 a8Q Rc7 Qc8 Rd7 Ra2 Bc6 Qe6 Bed5 Qf5 Kc3 Qe6 Bb1 Rf2 d2 Qf6 d1B Qg7 Nf5 Qf8 Bdc2 Qg7 Nge7+ Qf8 Rg8 h8Q Kd3 h7 Nh6 Qf6 Rg7 h8B Nhg8 Qf4 Rh7 Be5 Rh6 Nh8 Kc3 Bh5 Bh7 Q8f7 Bbc2 Rff1 Rhd6 Ng6 Kd2 Qh6 Bde4 Qa7 Bcd5 Qac5 Ra6 Q5c7 Bc6 Qb6 Bed5 Rf2+
Qrq3bn/1pbbN3/pnkp1NR1/4b1B1/PB2r3/3BP3/R2K1N1Q/2N2b2 b - - 0 1 legal: proof: b4 c5 bxc5 e5 Ba3 e4 Bc1 e3 dxe3 Qg5 Bb2 Qe7 Bc1 Qd8 Na3 f5 Nb1 f4 Bb2 f3 Ba3 Ke7 Bc1 Ke8 h4 fxe2 Kd2 g5 Rh2 gxh4 Rh3 Nc6 Rh1 Nb8 f4 h5 a4 a6 c4 h3 g4 d6 c6 h2 c5 h4 f5 h3 g5 Qc7 f6 Bg7 f7+ Ke7 f8B+ Ke6 g6 Kd5 Ba3 Nh6 Be7 Bg4 Ra2 Bb2 g7 Qc8 g8N Nf7 c7 Bd7 c6 Rh4 Qc2 Be5 Bb4 Re4 Bg5 Nh8 Qb2 Bg4 Qc2 Nd7 Qb2 Nb6 Nf6+ Ke6 Nc3 Rb8 Nd1 e1B+ Kc1 Ke7 Bd3 Bd7 Ne2 B1c3 Rg1 h1B Nf2 h2 Kd1 Bg2 Nc1 h1B Qc2 Bcd4 Kd2 Bf1 Rg4 Bf3 Rg3 Bd1 Qb2 Bb3 Qc2 Qd8 c8Q Bg8 c7 Qf8 Qd8+ Ke6 c8N Bc5 Ne8 Kd5 Nf6+ Kc6 Qe8 Nd5 Qb2 Bb6 Rg2 Bc7 Ne7+ Kb6 Qh5 Qc8 Qh2 Bd8 Qd4+ Kc7 Qa7 Nb6 Nf5 Kc6 Qa8 Bde6 Bh4 Bc7 Rg6 Bd7 Bg5 Rg4 Rg7 Rf4 Rg6 Re4 Ne7#
Nr1b2B1/P1NN3R/3B1P1K/1n1qp2Q/r1r1R3/2nNrr2/1B1p1pbQ/k7 b - - 0 1 illegal: No proof kernel
1Q3r2/nN1Rn1n1/1r6/2Np1k2/1pQ1B1b1/p2P1B2/1b1nPB2/1QbQKR1q b - - 0 1 illegal: No possible last move
nKB1Q2b/2B1R3/4Q3/NPpPNpRR/b4N1r/b2n2qR/2pk1b1r/5r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 c5 e4 f5 d4 g5 h6 a5 b6 f3 h5 a4 d5 c3 b7 f2 h7 a3 h6 g4 Nd2 a2 Ba6 f1R Rh5 c2 Ndf3 g3 Rg5 g2 Bf4 Kb3 Ne2 g1B Qe1 Ka4 b4 Kb3 Bg3 Bf2 Nf4 Qb6 Qe2 Kc3 Re1 Ne7 Bh2 Nbc6+ Kd6 a1B b8N Nd8+ Nc6 Bg7 e5 Bd7 e6 Ng6 e7 Ne5 e8Q Nd3 Ne5 Bb2 Bc8 Ba3 Qe3 Qa7 Na5 Ba4 b5 Ne6 Qe4 Kd2 Kc6 Rf8 h8R Qb8 h7 Nc7 Qe6 Rf7 Re3 Ra7 Re8 Rb7 h8R Na8 Rhh5 Bh8 Reh3 Rh7 Bg3 Rbf7 Re7 Qd6+ Kb7 Rh6 Rh1 Rfh7 R5h3 Rh4 Bh2 Qd8 Kb8 Qg8 Qe2+ Kc1 Qh5 Kd2 Qe8 R7h6 Rh5 Qg3 Rg1 Qf3 Rgg7 Qg3 Rgg5 Rg6 Ng2 Qe3 Ng4 Rg1 Bc7 Rf1 Ne5 Qf3 Nf4 Qe3 Rg1 Rg2 Q6g6 Rh2 Rgg5 Qg3 Qe6
bqN5/4b1r1/B4N2/QpB2Kp1/n2RrQNR/1b1kN1rr/1PpP2n1/1Q6 b - - 0 1 illegal: No proof kernel forced: bxDB
b2Q1rQR/3k1r1r/1B2b1RP/1n6/1PQq3r/6bN/pBB2p1p/nNK3B1 b - - 0 1 illegal: No proof kernel
7K/1r1nQ1BN/rqQ1Rbp1/4B2b/2knB3/P2p4/1PB1bpb1/1RnNQ3 b - - 0 1 illegal: No proof kernel
2bK2Br/1r4B1/5npq/R1Q3b1/R1rp1p1n/1B1Qb1NN/1PP2bk1/3BN3 b - - 0 1 illegal: No proof kernel
1Q1R2Q1/nQ2b1b1/1PBnK3/nb2NP1q/3Q4/ppp4k/rB6/1B1RNn1r b - - 0 1 illegal: No proof kernel
2N5/bNr1R1Q1/1Pp1Bk2/b3n2q/r3QBp1/p3R2n/P1n2nQK/1N1r2Q1 b - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 bxc4 h3 Bb7 h4 Be4 h5 Bg6 hxg6 f5 Qd3 fxg4 Qd4 Qc8 Qd1 Qd8 f4 Ke7 Kf2 d5 Kg3 h5 b4 a5 e4 c3 g7 h4+ Kg2 c2 e6 d4 e5 a4 f5 c6 b5 d3 Qe2 d2 Nh3 d1R Kh2 a3 Nf4 h3 Nd3 Nh6 g8Q Ra4 Bf4 c1B Nc5 Nf7 Nb7 Na6 Qg2 Nb4 Bc4 Be3 Re1 Ba7 b6 Rh7 Re3 Nc2 Qg7 Qd5 f6+ Ke8 Qg1 Bb4 e7 Ba5 Bb3 Kd7 e8N Ke6 Qg2 Kf5 e6 Ne5 e7 Qf7 Qg8 Qh5 f7 Rg7 Ned6+ Kf6 f8Q+ Rf7 Qg1 g3+ Kh1 h2 e8Q g4 Nc8 Rd8 Be6 Rd1 Qb4 Re7 Qe4 Rc7 Kg2 h1N Qd7 Nf2 Qd2 Nh3 Kh1 g2+ Kh2 Qh7 Qf1 g1N Qdg2 Qh5 Qgh7 Ne2 Qfg1 Nc1 Qg8 Ncd3 Qgh7 Ndf2 Qd7 Qf5 Qe7+ Kg6 Qg7+ Kh5 Rc3 Nd7 Qc4 Qc5 Bf5 Qe5 Nd2 Rf1 Re1 Qb5 Re6 Rd1 Re7 Kh4 Be6 Qh5 Qce4 Ne5 Qf8 Re1 Nb1 Rd1 Bg3+ Kg5 Re3 Rd5 Qg8+ Kf6 Bf4 Rd1 Qg7#
1b1BQ1N1/1Bq3N1/1pQ1K3/1bPn4/2n1b1P1/1Rb1Br1R/1Q1prQp1/1k1r4 b - - 0 1 illegal: No possible last move, all moves rejected
2R2QR1/3qk3/Pp1b1r2/Q1nbpr1r/1Kp4Q/1Bn2N2/rP6/QN2nB1R b - - 0 1 illegal: No proof kernel
K3R2Q/1R1kqrPB/3p1b2/1N2r1B1/1n1B3N/pb3bRn/3P2p1/rQ2R2b b - - 0 1 illegal: No proof kernel
1N2bK2/r3Qbp1/3Qp2Q/bkq3B1/2p3R1/2r1bn2/1Q1PnPN1/R2R1B1r b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 b5 Kd4 c5+ Ke5 e6 h4 b3 a4 b4 h5 b2 d6 Kc6 f6 g3 f7 b3 h6 g2 a5 Ra6 h7 Nf6 d7 Be7 f8Q Qb6 d8Q Nd5 Ne2 g1B Nbc3 b1R Ne4 b2 Qd6+ Kb5 Nf6 Nc3 Nd7 Bh2+ Nf4+ Ne2 Qc2 Bg5 Qfe7 Ra7 a6 c4 Rg1 Bb7 Rg4 Bc6 Qc3 Rf8 h8Q Bg3 Qh6 Qc5+ Qd5 B3h4 Ng2 Be3 Qa3 Rf3 Qa2 Rc7 a7 Rb7 a8R Ra7 Qf8 Bd8 Qe7 Ba5 Qa3 Na6 Nb8 Nb4 Qa2 Nc2 Qa3 Ne1 Qa2 Kb6 Qa3 Qb4 Qdd6 Kb5 Qef6 Beb6 Qd5+ Bc5 Ra2 Rb7 Qdd3 Ng3 Be2 Bd8 Qac3 Ra1 R2a4 b1B Ba3 Be8 Qb2 Ba7 Qdd4 Rb3 Bd3 Qf8 Be7 Nf3+ Kd6 Bab6 Be2 Bbg6 Qf7 Rh1 Bf1 Ne2 R4a6 Bc6 Qe8 Qf5 Bg5 Bf7 Qf4 Bdc7+ Ke7 Be3 Qd6 Qc5 Kf8 Bd8 Qee7 Bce8 Ra2 Rd7 R8a3 Ra7 Ra4 Ba5 R4a3 Rb4 Rc3 Rb3 Ra1 Qd4 Rcc1 Qc5 Qc3 Ra3 Rd1 Rb3 Qc1 Rc3 Qb2+
3RQb1q/2n2P2/Q1n1P2r/2kQbK2/p1bN1R2/2b1r3/4pp1R/1BNR2Br b - - 0 1 illegal: No proof kernel
Bb1r2qr/1N2QP1Q/4pb1N/5P2/R3prk1/1bR1B1bn/1N4Rp/Kn1R4 b - - 0 1 illegal: No possible last move
1RN1b2B/5p1b/Q5p1/rP2N1K1/2pPBn1r/1Q2k1n1/1r1bN2q/1r2BRN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 e4 a5 b4 c5 h4 a4 h5 g3+ Kf3 c4 h6 g2 b6 a3 b7 a2 b5 Nd7 Kg4 f3 b8N f2 h7 Qc7 Qd3 Nb6+ Nd7 Ne7 Bd2 Ra5 Be1 Nf5 Ne5 Bd7 Qb3 Be8 Kg5 Ng3 Bd3 f1B Nc3 Be2 Bc2 Bd3 Nce2 Qb8 Rc1 a1R Rh4 R1a2 Rg4 Ke7 d6+ Ke6 d7 Bb4 d8Q Nd5 Qc8+ Kd6 Rh4 Rb2 Rh5 Nf4 Qa6+ Ke7 Rh6 Bd2 Rb6 Qd6 Rb8 Ke6 Nc6 Qc7 e5 Kd5 e6 Ke4 e7 Ke3 Ne5 Qd6 Nh3 g1R Bb1 Rh1 Nhg1 Rh4 Bc2 Rg8 h8B Qc7 Nc3 Bh7 Be4 g6 Rd1 Ra1 Rc1 Rab1 Rd1 Bd7 e8N Rf8 Nd6 Re8 Rb6 Ra8 Nc8 Be8 Rb8 Qd6 Qb7 Ra5 Qa6 Bc1 Rd2 Qc7 Rf2 Bd2 Rf1 Qb7 Bd3 Qg2 Nce2 Qh2 Be4+
2n1NB1N/5p2/QbRp1RqP/1b2n2p/bR3Q2/5PnR/1B1K4/r2nQrk1 b - - 0 1 illegal: No proof kernel
1rQ1Bb1k/Q3Pr1B/5N1n/1pR2prR/NB1Kn1br/2pB4/2qP3N/3b4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 f5 g4 Kf7 a4 Kg7 e4 b5 g6 c5 g5 h5 d6 c4 d7 h4 a5 f3 Ke3 b3 a6 h3 e5 h2 e6 f2 a7 b2 e7 Na6 Nf3 Qc7 d8Q Rh3 Kd4 Qb7 Nc3 b1R Na4 Rb8 a8B Rh7 Bd3 f1B Ba3 Qc6 Bb4 Bb7 Qc8 Be2 Qg1 Nh6 Qe3 Rd1 Rc1 Rg1 Rc2 Kg8 g7 Bd1 Qf2 Qc7 Rc3 Bd5 Bc6 Nc5 Be8 Bf7 Rc1 Bh5 Rc2 Bg4 Rc3 Rh8 Rc2 Kh7 g8N Ne4 g6+ Kg7 Nf6 Rh7 Kd5 Kh8 Qa7 Rf7 Kd4 Rg7 Nh5 Rf7 g7+ Kh7 g8B+ Kh8 Bh7 Rg2 Rg1 h1R Nf6 Rh3 Rc3 Rh4 Nh2 Qc6 Be2 Qc7 Rh3 Qc6 Bd3 c3 Re1 Qe6 Ree3 Qa2 Re1 Qc2 Re2 Nf2 Re5 Ne4 Rc5 Bgf3 Kd5 Rg5 Kd4 Bg4 Nf3 Rhh5 Rh2 Rh3 Rh1 Rg3 Rh5 Rh3 Nh2 Rh4 Be2 Kg7 Bc4 Kh8 Bd3
1bQBq1BQ/4p1BR/n2b1r2/p3b1kp/5rR1/2PRR2r/P4N1N/3Kn1b1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 h3 fxg4 Bg2 g3 Bf1 g2 Nc3 g5 Nb1 g4 Rh2 g3 Rh1 Bg4 hxg4 Bg7 Rh3 Bh6 Rh1 Bf8 d4 Kf7 f4 Kf6 f5 h5 c6 a5 d5 b5 c3 b4 d6 e3 g5+ Ke5 f6 Kf4 f7 b3 g6 b2 d7 Qe8 d8B Kg5 g7 Nh6 g8R+ Bg7 f8R Nf7 c7 Rh6 c8Q Rf6 Nd2 b1R Rh8 e2 Rh7 Ne5 Rh4 Na6 Qb3 Rb8 Qg8 R8b4 Qh8 Rbf4 Rg8 Rb2 Rb1 Rc2 Rb7 Rb2 Rd7 Rbb4 Rd5 Rbe4 Rd3 Re3 Nc4 Ref3 Nd6 Re3 Kd2 e1B+ Kd1 Nf3 Bd2 Bf2 Bc1 Ne1 Nf3+ Kg6 Ne4 g1B Bh3 g2 Nh2 Bg3 Nf2 Kg5 Be6 Ref3 Rf8 Re3 Bg8 Ref3 Nfg4 Ba7 Nf2 g1B Be3 Bb8 Bd4 Rh6 Rf7 Bge5 Rf8 Bed6 Bg7 Rhf6 Re3 Rc4 Rd3 Bge5 Rf7 Rh3 Re3 Re6 Rff3 Rf6 Rd3 Rd4 Re3 Rdf4 Rg4+
KQ1r4/Q2p2k1/p3n3/R2P2nB/b1qN1bR1/3NP1rp/1rBQ4/nQ4Nr b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 a4 exf4 Ba3 Bb7 axb5 Be7 b6 Bf8 b5 Bc8 Bb4 cxb4 Kf2 f5 c4 Kf7 d4 h5 g4 a6 g6+ Kg7 b7 h4 g5 f3 Ke3 h3 b6 f2 c5 b3 c6 b2 d5 f4+ Kd4 f3 e3 Bd6 c7 Bh2 Kc5 Rh5 Ra5 Rh7 Qd2 Nf6 Bd3 f1R Bc2 f2 Nc3 b1N Na4 Nc6 b8N Be5 b7 Kf8 Kb6 Bf4 Nb2 Kg7 Nd3 Nd4 Nc6 Ne4 b8Q Bb7 Qa7 Ne6 Nd4 Qc8 Rh2 Bc6 Rg2 Ba4 Rg4 Qf8 Kb7 Qc5 c8Q Na3 Qd8 Qc4 Qdb6 Rb1 Qb3 f1R Qb5 Kg8 g7 Rd8 Qbb6 Kf7 g8B+ Kg7 g6 N4g5 Bf7 Rb2 Qb5 Rhh8 Qbb4 Rhg8 Qbb6 Kf6 g7 Re1 Bh5 Rf1 Bb3 Nc2 Qb5 Na1 Bc2 Bb8 Ka8 Bf4+ Qbb8 Rc1 Ngf3 Rh1 Ng1 Rh8 g8Q Rh6 Qe8 Rg6 Qh8+ Kf7 Qe5 Kg8 Qd6 Kg7 Q6b4 Nf7 Rh4 Rg3 Rg4+ Nfg5 Qb3 Qc7 Qa2 Qc4 Qb1
2Q2R1r/3pR1np/1n2NrbR/1BBP3p/3PN3/R3kb1Q/Kb6/b2Bq2r b - - 0 1 legal: proof: c4 e5 f4 exf4 h4 b5 d4 b4 h5 g6 a3 gxh5 axb4 Qg5 b5 Qd5 cxd5 Kd8 Ra6 Ke7 Ra1 Ke8 Kd2 Ke7 Kc2 Kf6 Kb3 Kg5 g4 a5 e4 f5 b6 c5 b7 a4+ Ka2 c4 b4 c3 e5 c2 b5 a3 b6 Na6 b8Q Nc5 e6 Ra6 e7 Ne6 e8R Ng7 b7 Ne7 Ne2 Rf6 Nd2 f3 Nf4 f2 Bb5 f1Q Rg1 Qe1 Bb2 c1R Qb3 Rd1 Qh3 Rb1 Qa8 Rc1 b8R Ba6 Qc6 Nc8 Re7 Nb6 Qc8 Rb1 Bc3 Rd1 Bb4 Rb1 Bc6 Be2 Bb5 Bf3 Bc5 Rd1 Rf1 Rc1 Ra8 Rb1 Ra6 Rc1 Kb3 a2 Ra3 Rd1 Rb1 a1B Ka2 Qe2 Rf2 Rh1 Rb4 Qe1 Ne6+ Kg6 Rba4 f4 Ra6 Kh6 g5+ Kg6 Qh2 Kf5 g6 Kg4 Nb3 Kf5 Qh3+ Ke4 Rf1 Ke3 Rf2 Ne8 Rf1 Bh6 g7 Bg5 g8B Ng7 Nd2+ Bc3 Bf7 Rf5 Nb3 Nc4 Qd8 Ke2 Bc6 Ba1 Qf8 Be4 Be8 f3 Nc7 f2 Bb5 Bc1 Nd2 Bcb2 Bg6 Rf7 Qc8 Rf4 Rg1 f1B Rg4 Rf3 Rf4 Bg2 Rf8 Kf2 Raf6 Nb6 Ne6 Bc2 Bgd3 Ke3 Bdc4+ Bd3 Bb3 Bf5 Rh6 Bg6 Qh2 Rf5 Ne4 Rf6 Qh3+ Bf3 Bd1+
bnk4K/1rP3nN/np2Rp1P/1B1pQBb1/4rBn1/6N1/b3Q2B/q4R1N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 g5 Kf3 b6 Kg4 b3 Kf5 b2 h4 d6+ e6 g4 c4 g3 a4 g2 e4 d3 a5 d2 h6 Bg7 h5 Be5 c5 Ke7 a6 Bc3 e5 Qe8 h7 Kd8 c6 Nf6 a7 Ne4 c7+ Ke7 h6 Qd7 Ne2 g1N Ng3 Ng5 Qe2 d1N Nd2 b1B+ Nde4 Re8 h8B N1f3 Bf4 Ba2 Nf2 Nb2 Re1 Nd3 Bh3 d5 Rhf1 Qb5 Nfh1 Bd2 Bg7 Qa6 Bh8 Kf8 Kf6 Nc5 Bf5 Re7 Bg7+ Ke8 Bf8 Qa3 Kg7 Nh2 Kh8 Ng4 Bg7 Nca6 Bf8 Rd7 Bd6 Bb7 e7 Ne6 Nh5 Rd8 N5g3 Kd7+ e8N Bc4 Bb4 Kc8 Bd6 Rd7 Nf6 Ng7 e6 Qa1 e7 Ba2 Nh7 f6 e8B Bc1 Qf3 Bc6 Re6 Re7 Qe2 Bb7 Bb5 Bd2 Bfe5 Bg5 Bf4 Nd7 Qf2 Rb8 a8Q Bc6 Qa7 Ba8 Qe2 Rb7 Bde5 Ndb8 Bd6 Nb4 Qa3 N4a6 Qae3 Rd7 Bde5 Rd6 Qe4 Rc6 Bd6 Rc4 Qe5 Rd4 Bc5 Rb4 Bg1 Re4 Bh2
b1qk2bR/KBpb4/3p2rP/2n1NQP1/2pr2BR/QR5r/n2b1B2/6BN b - - 0 1 illegal: No proof kernel
1kr1n1RB/1Qp1NN2/1bPr4/pRpQ2b1/8/n2qn3/B1PB1KBN/r4n2 b - - 0 1 illegal: No proof kernel
1r1nRB1b/P1Q5/3Q1p1p/2qnp3/2bnK2k/1bQR2r1/4P2N/NNbQB3 b - - 0 1 illegal: No proof kernel
k1r1r2B/P2n1nQK/4p1p1/1BP1q1R1/1N5B/r3Qb1N/1pn1RQQ1/3r2b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 b5 Kf3 d5 Kf4 Kd7 Kg5 Kc7 Kg6 Kb7 h4 d3 f4 e6 a4 d2 c4 b3 c5 d4 h6 b4 h5 b2 h7 b3 h6 d3 a5 Nf6 a6+ Ka7 Qc2 d1N Rh5 d2 Ra2 Qe7 Rg5 Qb7 Bb5 Ne8 f6 Bd7 f5 Nd6 f7 Qb6 f6 Qc7 Nc3 b1R Nh3 Ne3 Nd5 d1R Nb4 Ra1 Qg2 Bc6 Re2 b2 Bd2 Nc2 Be1 Be7 f8Q Nf7 Bh4 Bd6 Qd8 Be5 Qd4 Bf3 Qe3 Re8 h8Q Nd7 Kh7 g6 Qg7 Kb8 a7+ Kb7 Qeg1 Rac8 Qd4 Ka8 Qe3 Nd6 f7 Ra3 f8Q Bh2 Qff4 Nf7 Qef2 Qe5 Q4e3 Nf8+ Kg8 Bg1 h7 Kb7 h8B Nd7+ Kh7 Ka8 Qf4 Ra4 Qd2 Ra3 Qde3
B1n2k1r/PQpBRb2/R3PBN1/b1b5/1q2p3/6r1/npBQ4/b2nNK1Q b - - 0 1 illegal: No proof kernel
2B2BN1/p1k2b2/QR2rR2/1RqnR2p/QP1pn2b/n1r1P2K/bn5N/3B4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 c4 d5 b4 Kd7 g4 h5 Kg2 d3 c5 f3+ Kh3 d2 g6 d4 b6 f4 g7 f2 b7 f3 g5 Rh7 c6+ Ke6 g6 Be7 c7 Kd7 Ra5 Nf6 g8R Ne4 g7 Qf8 Re5 Bh4 Qa4+ Nc6 b8R d1N Bh6 Nb2 e3 Qc5 Be2 f1N Nc3 f2 Bd1 Nfd2 Rb6 Nb1 Nd5 Na3 Ne7 Rh8 Rh2 f1B+ Rg2 Rh7 Nf3 Bc4 Rgg5 Ba2 Rf8 Bb7 c8B+ Kc7 Ng8 Ne7 Nh2 Bbd5 Rff6 Bf7 Bb7 Re8 Bc8 Qd6 Reb5 Nd5 Re5 Qc5 Ne7 Rf8 g8Q Re8 Qg6 Rg7 Ng8 Re6 Bb3 Rh7 Bf8 Rg7 Qh6 Rg2 Bd1 Rc2 Qh7 Rc3 Qa6 Ng3 Qc2 Ne4 Qca4
1nb1r1r1/3BR1q1/B1b1Q1B1/1Nb1Q3/K2Qp2P/4p2q/PpNnR2B/k4b2 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 fxe4 b4 c5 dxc5 h5 gxh5 axb4 Kd2 Kf7 f4 Ke6 h4 Kd5 c4+ Kd4 c6 d5 f5 b5 h6 e5 h7 g5 c7 b3 f6 b4 c5 b2 c6 b3 f7 g4 Be2 g3 Bh5 g2 Rh2 Qd7 Na3 b1B Bg6 Bc5 f8Q Bd3 Qf6 Qh3 Qe6 Bf1 Nc2+ Kc4 Bb2 Nf6 Ne2 g1Q Nc3 Rg8 h8Q e3+ Kc1 Re8 Nb5 Ne4 Re2 Nd2 Ba3 Qg5 Kb2 e4 Rc1 Qe7 Qhe5 Qg7 Bb4 Kd3 Rb1 d4 Ba3 Bd7 c8B Rg8 c7 Bc6 Bb4 Re8 Ba6 Rg8 Ka3 b2 c8B Re8 Na1 Rg8 Bd7 Re8 Qa4 Rg8 Nb3 Kc2 Rbe1 d3 Rd1 Bd4 Bd6 Bc5+ Qb4 Re8 Ka4 Rg8 Nc1 Kb1 Qbd4 Ka1 Bc7 Nb1 Bd6 d2 Nd3 Re8 Rc1 d1B+ Rcc2 Nd2 Nb4 Nb3 Rc3 Nd2+ Nc2+ Kb1 Rh2 Bg4 Re2 Bf5 Q5d5 Bg4 Bh2 Rg8 Q5e5 Bf5 Ne1 Ka1 Ra3 Re8 Rb3 Rg8 Nc2+ Kb1 Bde8 Qb7 Qf7 Ra7 Rd3 Be6 Qdd6 Bc8 Qfe6 Qg7 Qd8 Rf7 Rd7 Rf3 Re7 Rff8 Nb4 Ka1 Qdd4 Qg2 Bd7 Qh3 Ka5 Rd8 Ka4 Rde8 Nc2+
1NB2q2/R1K2NBN/2Q2rQ1/1bb1n1q1/1p2p3/n1QpRP1k/r6P/1Nq2q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Ke4 d5+ Kf4 b5 c4 d3 a4 d2 h6 b3 c5 d4 a5 b2 c6 d3 f3 b4 h7 Na6 c7 Bd7 c8Q Bb5 Bh3 Nh6 Ne2 Nc7 a6 Ng4 a7 Ne5 Qg1 d1Q Nd4 Qf1 Nc6 g5+ Ke4 e6 Nb8 g4 Bh6 g3 Bg7+ Kg5 f6 Kh4 f7 Bc5 f8N g2 Ra2 Rg8 h8N Qc1 Nh7 Rf8 Bg4 Rf6 Nf7 Qf8 Ra4 Na6 Qc6 Nc7 Qd4 g1Q Qc3 Qg2 Re1 Qg5 Re3 Qf1 Nd2 b1Q Bh3 Qc2 Nb1 Qcc1 Ra1 Nc4 Qe8 e5 Bc8 Ne6 Kd5 Nd4 Qe6 e4+ Qf5 Ne5 Qg6 Nc2 Ra5 Rf4 Ke6 Na3 Ra6 Nc6 Kd7 Rf6 Kc7 Ne5 Nc6 Rb8 a8Q Rb6 Ra7 Ra6 Nb8 Ra4 Nd7 Kh3 Qb7 Nac4 Qa8 Ra2 Qc6 Na3 Nb8+
1Bn2K1N/k3N1R1/3QBR1r/2r3bP/1r1P2p1/pq3p2/1r2bBqQ/Q1n3Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 g5 e4 c5 h4 Kc7 b4 Kb7 h5 a5 d6 f5 d7 g3+ Kf3 a4 e5 a3 e6 g2 b6 c4 e7 c3 e8Q c2 b5 Bb4 Qee1 Ra7 Nh3 g1Q Nc3 Ra5 Bc4 Ra4 Be6 Rh6 Nd5 Ne7 Be3 c1R Bf2 Qg8 d8Q Rc5 Qd6 Bd2 Qc1 Ka8 b7+ Ka7 Qcd1 Qh2 Rf1 Nbc6 Qb1 Rb4 b8B+ Kb7 b6 Na5 Ra2 Nb3 Qa1 Nc1 Rg1 Be3 Rg4 Bd7 Qg1 Nc8 Ne7 Ba4 Re2 Bb5 Re1 Rb2 Rf1 Ka6 Bg3 Qc2 Bf2 Qb3 b7+ Nb6 Kg2 f3+ Kg3 Be2 Nf4 Qg7 Nfg6 f4+ Kh3 Bd2 Nh8 Be3 Bc7 Ka7 Rg2 Nc8 Kg4 Rc4 Kf5 Rb4 Nhg6 Qg8 Kf6 Bd2 Bd7 Qgd5 Kg7 Qe4 Kf8 g4 Nh8 Qec2 Be6 Qc6 Bg3 f2 b8Q+ Ka6 Re1 f1R Bf2 Be3 Rg3 Bd2 Rd3 f3 Rc3 Bg5 Rc5 Qb6 Rf5 Qc6 Qdh2 Qcc2 Rf6 Qd2 Be5 Qdc2 Qd6+ Ka7 Rd1 Re1 Rd3 Rd1 Rc3 Rd3 Rc6 Rc3 Rf7 Rcc4 Rg7 Rc5 Qd7+ Ka8 Bh4 Qd1 Bd5 Ra2 Bc7 Rb2 Bf2 Ka7 Rf6 Qe1 Qdd6 Qf1 Be6 Qg2 Bb8+
R1n1rqN1/1Q2B3/Nq1P3P/p5R1/1pk1BNbb/4Qr2/2Bp2N1/K1bn1b2 b - - 0 1 illegal: No proof kernel
1Q2nQ2/5r2/2p3QQ/pNqB2K1/1N1P2P1/p1R1n1b1/r2N3q/1qqk1RBb b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 gxh4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 g4 e5+ Ke3 Kg5 d4 e4 b4 h3 f6 h2 f7 h4 b5 h3 b6 Nd7 f3 Ne5 d6 Nf6 b7 Rh7 b8N Ne8 d7 Qe7 d8Q Bb7 Bc4 a6 Qc8 Qc5 Ne2 Bd6 f8Q Rf7 Rf1 h1Q Qc2 h2 f4+ Kh4 Nec3 Kg3 Bd5 Nc4+ Ke2 e3 f5 Qg1 f6 h1Q Ra3 Qhh2+ Kd3 e2 Ke4 e1Q+ Kf5 Qe4+ Kg5 Ne3 Nd2 Kg2 Qh8 Bg3 Nb5 Ra7 Rc3 Bc6 Re1 Kf2 Rf1+ Ke2 Qh6 Bb7 Nc6 Qh7 Qb3 Qb1 Nb4 Bc6 Qf5 Ra8 Be6 Bh1 Bd5 c6 Qfg6 Raa7 Rf3 Qe1 Qb2 Kd1 Rf1 Rf8 f7 a3 Qgh7 a5 Q7g6 Rh8 f8Q Rf7 Qe6 Rhh7 Qed6 Rf2 Qb8 Rhf7 Qc2+ Ke2 Qcg6 Kd1 Nb3 Ra2 Bd2 Nc2 Be3 Qc1 Nd2 Qb1 Bg1 Ne3 Rf4 Qf1 Rf3 Qc1 Rf6 Qd3 Rf4 Qdb1 Rf1+
2N1n1Bk/2n2Q1q/nP5N/1B1rbp2/2R1p3/1Nbp1PB1/r3BnR1/3qQK2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Bf4 Be6 Bd2 cxd4 Bh6 d3 Be3 d4 Bc1 Bd5 exd5 Qc8 Nf3 Qc7 Ng1 Qd8 g4 f5 b4 h3 c4 Kf7 d6 Kg7 d7 h5 g5 a5 g6 e5 c5 h4 Be2 d2+ Kf1 e4 c6 a4 c7 a3 c8B a2 Nf3 h2 Rg1 h1N Qe1 d1Q Bf4 h3 Ba6 d3 Nfd2 h2 f3 Nf6 Nc3 Nf2 Nb3 h1N Rg2 Nh3 Bg3 Nf4 Nd5 Be7 Nb6 Rh7 Nc8 Nf2 Rc1 a1B Rc4 Qg8 d8N Bc3 Nf7 Ne6 Nh6 Qf7 b6 Kh8 b7 Bd6 b5 Ne8 b6 Bde5 Bb5 Ra2 Nd6 Na6 b8Q Qa7 Nc8 Rd7 Qb7 Rd5 Qe7 Qc7 Qf6+ Qg7 Qf8+ Qg8 Qf7 Ne6c7 g7+ Kh7 Qe7 Qf7 g8B+ Kh8 Qe6 Qh7 Qf7
n1q2Rr1/KN2R2B/1PpB2q1/1P2Q3/1pN2qr1/b2kB1p1/3N1n2/1bQN3q b - - 0 1 illegal: No proof kernel
b2N2k1/1B2R1Nr/1pB1K1n1/QN6/2npNqp1/R1n2rPP/2n4b/q3B1Q1 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Qh5 axb4 Qxh7 f5 exf5 Ra7 Bf4 Ra3 Bc1 Ra8 Kd2 Kf7 Kd3 d5 f4 e5 c4 b6 a4 b3 h3 b2 a5 Ba6 g3 Bd6 f6 Bf8 f5 Bd6 Nc3 b1N Ne4 Bc8 c5 Nc6 a6 Na3 a7 Qf8 Ne2 Nb1 Bg2 Nd2 N2c3 Bb7 Re1 Nc4 Nb5 Nge7 Ra3 Ng6 Bd2 Rc8 Qh5 Rh7 a8Q Kg8 Qa5 Ba8 Qd1 Rc7 Re3 Rf7 Qg1 Nce7 c6 Bc5 c7 Nc6 c8B Nb4+ Ke2 d3+ Kf3 Nc2 Be1 d2 Kg4 d1N Bb7 Nc3 Re2 Bf2 Kg5 d4 Bf3 Qd6 Bc6 Rf8 f7+ Kh8 f6 Qb8 Qg2 Bg1 Kf5 Bh2 Qg1 Qc7 Ke6 Qb8 Nd2 e4 Bg2 e3 Ne4 Qf4 Bb7 Rc8 f8N Rc5 f7 Rf5 Kd7 Rf6 Ne6 Rf5 f8N Kg8 Nd8 Rf6 Rf2 e2 Nfe6 Rf5 Rf3 Rf6 Re3 Rf5 Bd2 e1Q Re2 Qa1 Be1 Nf8+ Ke7 g5+ Ng7 Ng6+ Ke6 g4 Nc5 Qh6 Bgc6 Rf3 Re5 Qf4 Ne4 Nb4 Rd5 Nc2 Rd7 Qh6 Rc7 Qf4 Re7
2bb2qn/1B2n1k1/1p2QR1q/8/PQQ2NQn/2rpR2K/pP1n1rRN/7B b - - 0 1 illegal: No proof kernel
6n1/2b1b1bk/1p3PqB/1PNQR3/qr1Q1KpB/1BrpR3/N7/1bQ3nB b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Qa5 a4 Qxa4 d3 Qa2 d4 cxd4 Ke2 Kf7 Kf3 e5 b4 a5 c4 g5 h4 Kg7 c5 d5 b5 b6 c6 a4 c7 d3 h6+ Kh7 f6 d4 h5 a3 f7 d2 Ne2 d3 Nf4 Bc5 f8B Qb3 Ne6 a2 Bg2 Na6 Nc3 Nb8 Be7 Ra4 Rh3 Nd7 Bh1 e4+ Kg3 e3 f4 g4 f5 e2 Bh4 Ba3 Nc5 Ne5 Qe1 Bb4 Kf4 d1Q Re3 Be6 c8B Nf3 Rb1 a1B Na2 Bc4 Be6 Ng1 Bd2 Qdc2 Qc1 Bg7 Re5 e1B Be3 Nf3 Rb2 Qg2 Re2 Ng1 Bd2 Qc6 R2e3 Nf6 Bf7 Rc8 Bfd5 Ng8 Bf7 Kh8 h7 Qd1 Bfd5 Bb3 Be6 Bc2 Bb3 Bb1 Qc4 Qg6 Qd5 Bf6 Bc1 Bd8 Bd2 Kg7 Bc1 Bec3 h8Q+ Kf8 h6 Bc7 h7 Ba3+ Ne4 Be7 Bd2 Bd4 Nc5 Rb4 Qf6+ Qf7 Qg5 Qg6 h8Q Qc2 Qhh5 Bb2+ Qd4 Kg7 Bf7 Qa4 Bb3 Nh6 Bc1 Kh7 Bd2 Qg7 Qf7 Ng8 Qfc4 Qg6 Qc1 Bf8 Qd8 Be7 Qd5 Bb8 Nd7 Rc3 Nc5 Bc7 f6 Ba3 Qd8 Bf8 Qa8 Bg7 Qd5 Qa5 Kg3 Nf3 Na6 Rbc4 Re2 Be7 Bh6 Rb4 Re3 Qa4 Nc5 Ng1 Kf4
KnR1NNN1/4R2r/pQ2rq2/2P1Nb2/B2p1q2/BPrp4/1b3Q2/1kB2rn1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 d5 f4 h5 g4 a6 f6 d3 g5 h3 f5 h2 g6 h4 b3 h3 b6 Bh6 b7 e5 g7 Ne7 g8N Nec6 f7 Bg7 f8B Nd4 f6 Ne2 f7 Qf6 Na3 Bf5 Qe1 Rh7 Qf2 Ra7 Nf3 Ng1 Nb5 Bh8 Nc7 Ra8 Qa2 Bg7 Nd2+ Ke3 Ne8 e4 Bg2 Ke2 Be7 Kd1 f8N e3 Nf3 e2 Ne5 e1R Qf2 Re2 Bd6 Kc2 Kb6 Ra7 Ra5 Kb1 Rc5 Rc2 Rc6 Rc3 Bda3 Bh8 c5 Re7 Ned7 Re6 Ne5 Ne2 Qh4 d4 Nc7 Re8 Be4 Bg7 Ned7 Bh6 Re1 h1R Bcb2+ Bc1 Qg3 h2 Qf2 Re5 Ne8 Rf1 Bd5 Ng1 Re2 Qh8 Rc8 Nc6 b8Q Qf6 Bc4 Re4 Bb5 Re7 Qd6 Nb8 Ba4 Rc7 Qe6 Rc6+ Ka7 Rh7 Qd5 Rd6 Re7 Re6 Qb7 Be3 Bc1 h1Q Ka8 Qhh6 Bcb2 Bc1 Qb6 Qf4 Ne5 Rc2 Bc3 Bb2 Bd2 Rc3 Bc1
b1N1Rq2/1kB4p/n1QBKQ1b/1brp2Bb/3p3R/1N1B2P1/3Q3P/1r3qn1 b - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 e5 axb5 exf4 Ra6 g5 Rg6 Qf6 Rxg5 Qb6 Rg7 Qd8 Kf2 f5 Kf3 d5 e4 a5 c4 a4 c5 a3 e5 a2 b6 a1Q b7 Qc3+ Bd3 Ne7 g3 Kd7 e6+ Kc7 c6 Ra4 b5 Kb6 c7 Qb2 Nh3 Ng8 e7 Nh6 e8Q Ra1 Rg4 Nf7 Ng5 Bh6 Nd2 Rb1 Qd7 Na6 b8B Qf8 Nb3 Kb7 b6 Qa1 Ne4 Rg8 Re1 Ne5+ Kg2 f3+ Kh3 f2 Qd2 f4 Rh4 f3 Nd6+ Ka8 Re3 Bb7 c8Q Rg7 Qdd8 Rc7 Qf6 Rc5 Qd7 Bc6 Nc8 f1B+ Qg2 f2 Bd6 Nf3 Kg4 Be2 Kf5 f1B Re8 Ng1 Ke6 Bh5 Bg5 Qc3 Qd2 Qc1 Be4 Bc4 Bd3 Qf1 Bc7 B4b5 Bd6 Nb4 Bc7 Kb7 Bd6+ Ka6 Bc7 Ba8 b7 Nf3 b8B Kb7 Qf2 Ng1 Bd6+ Ka6 Bbc7 Kb7 Qd2 Na6 Qc6+
rbBR2K1/n6p/RR3q1P/bB3p1b/1b1N3N/3p1r2/1qPQ2Nn/5NQk b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Kf7 f6 Ke8 f4 e6 f7+ Ke7 Ra3 Kf6 Ra1 Bd6 f8N Kf7 Qe2 Ke7 Qd1 Ke8 f5 Ba6 f6 Bc8 f7+ Ke7 Bf4 Bc5 Be5 Bd6 Bf6+ gxf6 Kf2 a5 Kf3 d3 Kg4 a4 Kh5 d2 g4 a3 b4 e5 h4 a2 b6 f5 g5 e4 b7 e3 b5 e2 g6 Kf6 g7 Ke5 b6 Ke4 Ne6 e1B f8Q Ra4 Nf3 Bb4 Qc5 d5 Nf4 d4 Bb5 d3 Ng2 Qf6 Qg1 Nc6 b8N Be6 b7 Na7 Nc6 Nh6 g8B Ng4 b8R Nh2 Rd8 Bb3 Qc1 d1Q Qd2 Qc1 Ncd4 Qb2 Be6 Rg8 Bc8 Rg3 Ne5 Ra3 Ng6 Rf3 Kh6 Bf7 h5 Bg3 Qgc1 Bb8 Qg1 Qc6 Kg7 Qb6 Ne7 Qf6+ Kf8 Ra5 h6 Bh5+ Kg8 Ra4 Ng6 Ra6 Na3 Ba5 Rb1 a1B N6h4 Bb4 Nc4 Ba5 Nge3 Kf4 Neg2+ Kg3 Nce3 Qa3 Ne1+ Kh3 Qdf2 Bb6 Qg6 Nc6 Qd2 Bc3 Ba4 Ra8 Rg1 Bc5 Rb6 Qb2 Bb5 Na7 Rf1 Ba5 Qg1 Bcb4 Rb7 Bb6 N1g2 Ng4 Ra1 Kg3 Qb1 Kh2 Ra6 B6c7 Qbe1 Bca5 Qef2 Kh1 Rbb6 Nh2 Nf1 Bg6 Qfe3 Bh5 Qg1+
3Nbrnq/1BN2NP1/1p2P1Q1/2QR1nK1/q4pRp/1Nr5/1n1B2kb/Q6n b - - 0 1 illegal: No possible last move
1N2Qn2/rR1b1p2/nP1R1kq1/B5N1/2nPr1BK/6B1/2pQBpR1/2bq3n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 d4 c5 g4 h5 e4 a5 b4 c4 g5 a4 b6 c3 d6+ Ke6 d7 f3 b5 c2 e5 a3 g6 a2 g7 h3 Kg3 h2 b7 f2 b6 Na6 b8B Rh6 Nh3 Be7 Rg1 h1Q Nc3 Qe4 Nb5 Qh1 Qd2 Nf6 g8Q Ba3 Be2 Ra7 Rg2 Qd1 Kh4 Nh7+ Ng5+ Ke7 e6 Kf6 e7 Nf8 e8B Qe7 d8R Qe4+ Kg3 Bd7 Nc7 Qg6 Kh4 Rh7 Bb2 Rh8 Bc3 Bc1 Ba5 Rh6 Rb1 a1N Rb4 Nb3 Rc4 Bc8 Bc6 Bd7 Bcf3 Rh7 Bg4 Rh8 Qe1 Nd2 Rc5 Nc4 Qd2 Ne6 Qe8 Nf8 Nb5 Rh6 Bg3 Rh7 Rc7 Rg7 Kh3 h4 Rb7 Rh7 Nc7 Rh5 Nge6 Re5 Ng5 Re4 Be6 Ba4 Rd6 Bd7 Bf5+ Re6 Kg4 h3 Kh4 h2 Bfg4 h1N Rd5 Nc5 Na6 Re4 Nb8 Na6 Rd6+
8/b2krp2/1pPn4/r2NRR1B/q2PR2K/b2QBQ1n/pN4qB/Rb1b4 b - - 0 1 illegal: No possible last move, all moves rejected
1b1q2r1/1bpbr1B1/2NP2bq/3k3n/2B2p1n/Q3p2P/1BNRKQN1/R2N4 b - - 0 1 illegal: No proof kernel
2n2QB1/q1p1P1BQ/pR5R/2knNN2/rB2q1BK/Qr1bb1p1/2P5/2r1r3 b - - 0 1 illegal: No possible last move, all moves rejected
R2NR2R/1P6/2Q5/2rRKnbb/4pNQr/1r2pB1q/2Bp1kPn/1r2B1q1 b - - 0 1 illegal: No possible last move
q2kb3/np2N3/3bpP1R/4P2N/2b5/BbQN1K1B/1n1qr2p/rRQ2B1B b - - 0 1 legal: proof: g4 a5 d4 g5 b4 axb4 h4 f5 hxg5 c5 gxf5 cxd4 f4 d5 Kf2 h5 a4 b3 c4 d3 e4 d4 e5 h4 c5 b2 c6 d2 f6 d3 g6 h3 g7 Qa5 f7+ Kd8 f5 Nh6 g8B Qc5+ Kf3 Ng4 a5 Ra6 f6 Rh4 Ne2 Bd7 Na3 b1B Ng3 Ba2 Nh5 Be8 Rb1 Nf2 Nc2 Qa7 Ba3 Bc4 Ne1 Re4 Qc1 Re2 Qc3 d1Q c7+ Kd7 c8B+ Kd8 Bg4 d2 Nd3 Qa8 Qc1 Ra7 a6 Nc6 Bh7 e6 Be4 Bb4 f8N Bd6 Ng6 Qe1 Bgf5 Nd1 Ne7 Nb2 Qc3 d1B Bd5 Qc8 Rh2 Ra8 a7 Qd2 Bde4 Bdb3 Qc1 Rb8 a8Q Na7 Bc6 Nb5 Qa7 Ra8 Qd4 Na7 Qdc3 Qb8 Rg2 h2 Bh3 Nc8 Rg1 Ra6 Rg7 Qa8 Rh7 Na7 Rh6 Ra5 Kg4 Ra6 Bh1 Ra4 Kf3 Ra5 Bc5 Ra1 Ba3
1K3R2/np4r1/QP3Bp1/R3rNq1/1qB1RB2/r2nPbp1/Q2R1Nr1/4b1k1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 e5 cxd5 exf4 Qc2 h5 Qc5 hxg4 Qxa5 Rh5 Qa7 Rh8 Kf2 Kd7 d4 Kd6 a4 f5 b4 c5 h4 g3+ Kf3 c4 b5 c3 b6 g6 a5 c2 h5 Nh6 a6 Bd7 Rh4 Nf7 h6 Qg5 h7 Bc6 Nc3 Be7 Nh3 Rg8 h8R Rg7 Ra5 Bf8 Bd2 c1Q Nd1 Qb1 Nhf2 Qb4 Ne3 Be7 Rf8 Ne5+ Kg2 Nd3 Kf3 Bd7 Rg4 Nc6 Rh4 Re8 Qa8 Bf6 a7 Re5 Rg4 Ke7 d6+ Ke6 Rh4 Bc8 d7 Be7 Kg2 f3+ Kh3 f4 d8B Bc5 Nf5 Kd5 Bf6 Kc4 d5 Be7 Ne4 f2 d6 f3 Bf4 Be6 d7 Bd5 d8R Bc5 Bg2 f1R e3 Rf2 Bf1 Rg2 Nf2 Kc3 Rd7 Kd2 Rg4 Ke1 Rh4 Nb2 Bc4 Nd3 Rg4 Kf1 Rh4 Qh6 Kg4 Be4 Rd4 Kg1 Rh2 Bd5 Re4 Bd4 Qb8 Bc5 a8Q Na7 Qc7 Bd4 Qf7 Bc6 Qd5 Bc3 Qb5 Bd5 Qa4 Be1 Qa2 Nc6 Qa6 Na7 Nh1 f2 Kf3 f1R+ Kg4 Rb2 Rd2 Bc6 Nf2 Qg5+ Kf3 Rb3 Nh4 Ba4 Rd4 Kh2 Nf5 Ra3 Ra8 Rb5 Ke4 Rg1 Rg8 Bd1 Rf8 Nc5+ Ke5 Bf3 Kd6 Rg2 Re4 Kg1 Be7 Nd3+ Kc7 Rd5 Kb8 Re5 Bf6
2b3R1/Kp1Pr3/3nb2p/Q7/BNNkp3/nq2BQr1/R3Pq1Q/1Q1b1B1b b - - 0 1 legal: proof: c4 g5 f4 gxf4 h4 d5 cxd5 a5 b4 axb4 g4 Qd6 g5 Bh6 g6 Bg5 hxg5 Qd8 Kf2 Kd7 d4 Kd6 a4 e5 a5 c5 a6 f5 a7 f3 Ke3 c4 g7 e4 g6 h6 Bg2 f2 Rh3 f1B Nc3 b3 Rf3 b2 Rg3 b1B Nf3 Nf6 g8Q Rh7 g7 Nbd7 Ne5 Ne8 Na2 c3 Qf7 c2 g8B Qh4 Nb4 Nb6 Ra2 Rb8 Bh3 Bg2 a8Q Bh1 Qa5 Rg7 Qh5 Re7 Bf1 Qh3 Bd2 c1Q Qf3 Qc5 Rg4 Bd3 Qb1 Bc2 Bf7 Ba4 Rg8 Bd1 Be6 Ra8 Bd7 Ra7 Ba4 Nc4+ Kf2 Na3 Ke3 Ra6 Bc1 Rc6 Bd2 Rcc7 Bc1 Rg7 Bd2 Rg3 Nc4+ Ke7 d6+ Kf6 d7 Nd6 d8Q+ Re7 Qdc7 f4+ Kf2 Qa7 Be3 Qb6 d5 Qg2+ Ke1 Qf2+ Kd2 Be6 Kc3 Kf5 Nc6 Qb3+ Kd4 Kf6 Kc5 Kf5 Qg2 f3 Nb4 Bc8 Kb6 Kf6 Ka7 Be6 Nb6 Ke5 Bf4+ Kd4 Nc4 Qg1 Qh2 f2 Qb8 Qg2 Qf8 Qgf3 Bc1 Qfe3 Qf3 Bc8 Bh3 f1B Bg2 Qf2 Bf4 Ne8 d6 Be6 Bg5 Bc8 d7 Nd6 Bh3 Bfg2 Qg4 Bf3 Bf1 Bfg2 Qgf5 Bh3 Qf3 Be6 Be3+
Bn6/P1k2b1p/1Q1q2Rb/1q3p2/1N2Nq1B/2K1P1Bp/1B2rr1Q/Rq2n2Q b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 g4 Kd7 a4 b5 d4 c5 Kd2 f5 d6 h3 g5 c4 e6+ Kc6 a5 b3 e7 b2 e8Q+ Nd7 d5+ Kb7 e3 b4 g6 b3 g7 Nc5 a6+ Kb8 d7 Qc7 d8B Qd7 d6 Nf6 g8Q Bh6 Nf3 Nd3 Nc3 b1Q Qe5 b2 Nd5 Ne1 Qge6 Rg8 Kc3 Rg2 Qh2 Rf2 Ng5 Qc6 d7+ Qd6 Ne4 Re2 Kd4 c3 Rg1 c2 Kc3 Bb7 Nb4 Bd5 Be7 Kc7 Bg2 Rg8 Bf3 Rgg2 a7 Rgf2 Rg6 Qf4 Qa6 Bf7 Qd5 Ng8 Bf6 Ne7 Bh4 Nc6 Bg3 Nb8 Bg2 Qa2 Bf3 b1Q Bb2 Qa5 Qa8 Qb5 d8B+ Kd7 Bdh4 Kc7 Qf6 Qd1 Qa6 Qdd6 Qd5 Kd7 Qb6 c1Q+ Kd4 Qb1 Kc3 Kc8 Qd1 Nd3 Qdh1 Ne1 Nd2 Kd7 Ba8 Kc8 Ne4 Kd7 Qa6 Kc7 Qb6+
1KN2b2/pp4p1/N1B3R1/2R1n2N/3r1bqN/P1RQbP1b/3nq3/1Q3kBr b - - 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b4 d5 cxd5 h5 bxc5 hxg4 Ke2 Kd7 Ke3 e5 d4 g3 h4 g2 f3 Qa5 d6 Ke6 d7 Kf5 d8Q Qb5 a3 Nf6 d5 Rh5 d6 Ng8 c6 Ne7 c7 Rg5 d7 Nbc6 h5 Ng6 h6 Nd4 h7 Qc4 h8N Qf7 Rh6 Rh5 Nd2 Nb3 Bb5 Qg8 Nh3 Qe6 Nf4 Rh1 Bc6 Rb8 Nh5 g1B+ Ke2 e3 Kd3 e2 Ne4 e1Q Be3 Ra8 Rc1 Nd2 Nc5 e4+ Kd4 Qe2 Na6 Ne5 Rc5 Bh2 Rg6 Bf4 Bg1 e3 Qe8 Rb8 d8R Ra8 Rd6 Bd7 Rc3 Rd8 Kc5 Bc8 Qe7 Rd7 Rdd3 Rd4 Qd6 Qd7 Qb1 Qe6 Rh6 Kg5 Rg6+ Kh4 Rc4 Kh3 Rdc3 Bd7 c8N Qg4 Re6 Kg2 Ng6 Qd1 Nh4+ Kf1 Rg6 e2 Qa1 e1B Qb1 Re4 Kd5 Bf2 Rc5 Bf5 Qd8 B2e3 Qd6 Qg3 Qd7 Bh3 Qf5 Qg4 Ke6 Nd3+ Kd7 Ne5+ Kc7 Rd4 Kb8 Qe1 Qbd3+ Qe2 Qfe4 Rd7 Qb4 Rd4 Qbb1+
r3Bb2/nNqB2pr/1NR1p2Q/K1bQP1B1/7B/RbQ3p1/k2q1P1r/3q4 b - - 0 1 illegal: No possible last move, all moves rejected
3q3Q/1qP2N1Q/1k2b2n/2N1p1Rq/3pBp1r/3PnQ2/1rRK1nBr/5BB1 b - - 0 1 illegal: No proof kernel
3r1nkq/nr2P3/1Rp2pqp/1NP2Q1B/r2RN3/Q2K1R2/6R1/bnB2Qq1 b - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 Ra4 gxh4 Ra5 Na6 Ra1 Nb8 f3 e5 Na3 e3 Ke2 Bb7 Nb1 Bd5 Kd3 e4+ Kc3 e2 Ra5 e3 Ra1 Be4 fxe4 Be7 Na3 Bd6 Nb1 Bf8 g4 e1R d4 a5 b4 c6 e5 f6 e6 h3 d5 h2 g5 h6 g6 a4 b6 e2 b7 a3 g7 a2 d6 Qe7 b5 Ra5 d7+ Kd8 b6 Qd6 Nd2 Ke7 d8R Qg3+ Ngf3 Nd7 b8Q Qg6 b7 Ra4 Rb1 a1N Qe5 Nb3 Ne4 Nd2 Rb6 Nb1+ Kd3 Rh7 Rg1 h1Q Rg3 Qg1 b8Q Rh8 c4 Rh7 Qd2 Rd1 Nd4 e1Q Rf3 Qeg3 c5 Qe8 Qf5 Qgg6 Rc8 Qd8 Qbf4 Ke8 Q5g4 Bd6 Be2 Ne7 g8R+ Nf8 Qgf5 Be5 Ra8 Qb8 Nb5 Nc8 Qg3 Rc7 e7 Kf7 Qg2 Bc3 Qf1 Ba1 Ra7 Rb7 Ra8 Re1 Qb4 Na7 Qa3 Qe8 Rd8 Rd1+ Kc2 Rd3 Rd4 Rd1 Rc4 Rd8 Rd4 Qh5 Rg5 Qg6 Kd3 Kg8 Rgg3 Qf7 Rg2 Qfg7 Re3 Q7h7 Bh5 Qh8 Rf3
q1qQQ1Kn/1bp2p2/bBq3k1/6rR/2Q1p3/n1P5/1BNbP2N/n1Q1N1R1 b - - 0 2 legal: proof: f4 d5 h4 g5 g4 gxf4 a4 a5 g5 d4 Bg2 d3 h5 b5 axb5 Bf5 c3 Ra6 Be4 Rg6 hxg6 Bh3 Bd5 Bf5 Bb3 Bc8 Bc2 dxc2 Kf2 e5 Kf3 h5 Ke4 a4 d4 a3 b4 h4 b6 h3 b7 h2 d5 a2 g7 f3 d6 f2 b5 f1B d7+ Ke7 Kf5 e4 g6 Bg2 b6 Bf3 Bb2 c1Q Na3 Na6 b8Q Bb7 Nc2 Qh6 Qc1 Nb4 Qa7 Qc8 Qa4 Bh5 Nf3 Bg4+ Ke5 Be6 Nfe1 Bc4 Qb5 Bd3 Qc4 Rh7 Rg1 h1Q Rg5 Rh8 Rh5 Qa8 Rb1 a1N Kf5 Qh3+ Ke5 Nf6 g8Q Nfd5 g7 Rh7 Qh8 Nf4 Qg8 Qg4 Qh8 Qc6 g8N+ Kd8 Nh6 Ke7 Qg8 Rg7 Qh8 Qh3 Ng4 Ng6+ Kf5 Rg8 Kg5 Rg7 Kh6 Rg8+ Kh7 Bh6 Nh2 Bd2 Qe5+ Qhe6 Qeb5 Kf6 Qa4 Nh8 d8Q+ Qe7 Qab5 Rg5 Qa4 Kf5 Qab5+ Qec5 Qa4 Qd7 Qab5 Qdc8 Qbe8 Bd5 b7 Qc6 Qd4 Ba6 b8B Qab7 Ba7 Qba8 Na3 Nbc2 Qc4 Bb5 Bb6 Ba6 Nb5 Na3 Nd4+ Kf4 Ndc2 Kf5 Qa4 Qc4 Qb3 Bdb7 Qa2 Qc6 Qc4 Ng6 Kg7 Nh8+ Kf8 Kg6 Kg8 Qa4 Qe5 Qad7 Qee8 Qc6 Nd3 Q8e6 Qf1 Qf5 Qf4 Qfc8 Rg1 Be1 Qc1 Bd2 Nde1
2BN2r1/5bQB/1NnP2QR/p1Q2bp1/qbqQ2r1/R5pK/P7/1k1qB1r1 b - - 0 1 legal: proof: g4 c5 e4 d5 b4 dxe4 bxc5 g5 h3 Nc6 h4 Ne5 h5 Ng6 hxg6 f5 Rh6 fxg4 Rh4 Bh6 Rh1 Bf8 c4 Kd7 d4 Kc6 f4 b5 Kf2 h5 Kg2 e5 f5 a5 f6 e3 g7 h4 f7 e2 Nc3 e1R Bb2 h3+ Kg3 b4 Ba3 b3 Bd3 e4 Nd5 h2 Ne2 e3 Bh7 b2 Nef4 b1Q Nb6 e2 Bb4 Qe8 Ne6 Qc1 Rb1 Ne7 g8Q Qd7 Kg2 g3 Rb3 Rg1+ Kh3 e1Q Qg6 Qe4 Qd2 Qd1 Ra3 Rg8 Qb2 Rb8 Be1 Qec2 Qb4 Qa4 Qc3 Qc7 Qa1 Nd5 Qc3 Nb4 Qcd3 Be7 f8Q Bd7 Qc3 Be8 Qb2 Bf7 Qfg7 Rbd8 Qf2 Rd5 Qff6 Rf5 Qe5 Rf4 Qe3 Rg4 d5+ Kb7 c6+ Ka6 c5 Kb5 Qed4 Qc8 c7 Nc6 Nf8 Qe6 c8Q Qee2 Qf2 Qec4 Ne6 Bd6 Nd8 Bf8 Rc3 Kb4 Qfd4 Be7 Rc2+ Ka3 Rc3+ Kb2 Ra3+ Kc1 Qc7 Be6 Qd6 Bf5 Q6e5 Kb1 Qee3 Ne5 c6 Bb4 c7 Nc6 c8B Rg2 Rf1 h1B d6 Rg1 Qc5 Bd5 Qed4 Bf7 Rf4 Bd3 Rf6 Bc2 Qge4 Bd3 Rh6 Bc2 Qe6 Bf5 Qeg6
R5q1/1BN1RQ2/Pn3nR1/3n1KQ1/1p1b4/RPB1pN2/p3k1b1/1nrNb2n b - - 0 1 illegal: No proof kernel
2bNR3/nbBk3p/1bQnRr1B/P3b3/5Bn1/1pQ2p1K/bP2Bq2/5NN1 b - - 0 1 illegal: No proof kernel
2bbR2k/6P1/1QnR2qp/1QNbB1Nb/N2Rr3/2pB4/2n2npP/1KRb4 b - - 0 1 illegal: No possible last move
3Q2Q1/2R3q1/1N1RK2p/q1r1BB1Q/p1r2q1P/P2NN1Nq/1p1qn1b1/2k3n1 b - - 1 2 legal: proof: e4 d5 b4 dxe4 f3 c5 bxc5 exf3 g3 f5 Bd3 f2+ Ke2 e6 Bc4 Bd6 Kd3 f4 Kc3 f3 Bf1 Bf4 gxf4 Qc7 Kb2 Qe7 Kc3 Qd8 Kc4 Kf7 d4 Kg6 h4 Kf5 d5 Ke4 c3 g5 f5 a5 d6 b5+ Kb3 h6 a3 a4+ Kb4 g4 f6 g3 c6 g2 Kc5 e5 c7 b4 f7 b3 f8N b2 c4 Ra5+ Kb4 Nd7 c5 Bb7 Kc4 Ngf6 c8N Nd5 c6 Nf4 c7 Ne2 Nd2+ Ke3 Ng6 e4 Nf4 Re5 Nd3 Rc5+ Kb4 Rg8 Nb6 Ne5 c8Q Rg4 d7 Qg5 d8Q Qf4 Nh3 g1Q Ng5 Ba8 Bg2 f1Q Bh3 f2 Qe6 Qfh2 Qeg8 Nf3 Rb1 Rf4 Bf5 Qfh3 Ra1 f1Q Rb1 Re5 Kc4 Qgg4 Ra1 Nfg1 Rb1 Bd5+ Kc5 Ba8+ Kd6 Rc5 Ke6 Q2g2 Qb3 Q4g3 Qb5 Rg4 Qbe8 Qff4 Qh5 Qe1 Nh7 Qd1 Nf6 Qc2 Rh2 Qc3 Rh1 Qa5 Ndc4+ Kf3 Be3 Qb8 Qh7 Rc8 Qhc7 Ng3 Qdd6 Ke2 Qf8 Nf3 Bg5 e3 Rhc1 Ng1 Bf4 Qgb7 Qh7 Qg7 Nb4 Bg2 Qd8 Qbc7 Qhg8 Qb8 Nd6 Kd2 Nfd5 Qbc7 Ra1 Qc4 Be5 e2 Rc3 e1Q Rac1 Qd4 Ne3 N3e2 Rc6 Qd1 R1c3 Qc2 Ne4+ Kc1 Rd3 Qdc4+ Rd5 Qd2 Ng3 Rf4 Rd6 Qcd4 Rd7 Rc5 R5d6 Qe4 Rc7 Qf3 Qdg5 Rfc4 Q5d8 Qf4 Nd3+
b1R3q1/1q2Bnp1/b1N1qB2/rQ3kp1/1p3q2/1P1B2P1/QN2n1R1/2QK1Q1q b - - 0 2 illegal: No possible last move
N1R2Nbk/2Rqpr1r/2BN1Bp1/7n/1pPrP2K/rq3Q2/1QNn1B2/1r6 b - - 0 1 legal: proof: g4 a5 h4 f5 gxf5 c5 b4 axb4 d4 cxd4 h5 g6 h6 Bg7 hxg7 Qa5 Rh6 Qc7 Rh1 Qd8 c4 Kf7 f4 d5 Kf2 h5 Kg3 b5 a4 d3 a5 d4 f6 d2 a6 b3 f5 d3 a7 b4 Bg2 b2 Bc6 Bd7 e4 Qe8 Kh4 Na6 Nf3 Nc5 Ne1 Nb3 Nc3 b1R Nc2 Rh7 Qf3 d1R Bg5 d2 Nb5 Be6 Be3 Qc8 Bf2 Qd7 Ra4 Rf8 a8N Ra1 Ra5 Ra3 Ra7 Rb1 Rc7 d1R Rh3 Rd4 Rh1 Nd2 Rh2 Nh6 Nd6+ Kg8 Rh1 Ng4 Rh3 Rh8 f7+ Kh7 f6 Bd5 Kg5 h4 Rh2 h3 Kh4 Be6 Rh1 h2 g8Q+ Kh6 Rd1 Rh7 Qh8 h1Q+ Kg3 Qg2+ Kh4 Qf1 Rc8 Qd3 Rc7 Rb8 f8N Bg8 f7 Nf6 Rh1 Nh5 Qe5 Rd5 Qb2 Qb3 Rf1 Rf5 Rd1 Rd8 Rc8 Nf1 Rd5 Rf6 Rc5 Kg7 Bd5 Ra2 R5c7 Ra3 Nb5 Qf5 Bc6 Rd4 Nd6 Qe6 Nd7 Kh8 f8B Rf5 Bh6 Rff7 Nf8 Nd2 Bg5 Qd7 Bf6+
R1KnbR2/4QB2/2Np4/4Nnqp/5P1R/3P2q1/Qb1bk1pb/r1b1R1BN b - - 0 1 illegal: No proof kernel
2Nq1RKb/1N1kp3/b3QpR1/3B4/1Pbn1Q1B/qb2P1R1/R3bp2/N1r2r2 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 c5 a4 cxd4 axb5 Bh6 g5 Nc6 h5 Ne5 Qd3 Bg7 Qd1 Ng6 hxg6 Bf8 Kf2 h5 Kf3 a5 Ke4 d5+ Ke5 a4 c4 f3 b4 d3 c5 f2 g7 d4 g6 d2 b6 a3 c6 d3 c7 h4 b7 h3 b8R a2 Nc3 h2 Na4 Nf6 g8R Kd7 g7 Ra6 Bg2 Ra5+ Bd5 Ba6 c8N Ne4 Nf3 Rc5 Ne1 Ng3 Rg1 h1B Nc2 Nf5 Rg6 Nd4 e3 Rc3 Qf3 d1B Bb2 d2 Qf4 Bde2 Rg3 d1B Nc5+ Ke8 Nb7 Kd7 Rg6 Be4 Ra8 B4d3 Rg3 Bac4 Ra6 Rh2 Rag6 Rh1 Rh8 Ba6 g8Q Rc5 Bc3 Rf1 Bb2 Bdc4 Bc3 Nb5 Kf5 Bh6 Bf6 Bg7 Bh4 Nd4+ Kg5 Bf6+ Kh6 Bg7+ Kh7 f6 Qf7 Rc7 Re8 Bh8 Kg8 Rc5 Rf8 Rc7 Rb1 a1Q Rb2 Qa3 Na1 Bdb3 Ra2 Bcd3 Na7 Rcc1 Nc8 Bdc4 Qe6+
q2QR3/2NpKPq1/5Q1p/b3N2B/3bbB2/n1pP1R2/1RR1rrb1/2Qbk3 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b3 b5 Ba3 b4 Bc1 Nc6 Rh3 Na7 Rh1 Nb5 cxb5 a4 Qf3 axb3 Qe2 Ba6 Qd1 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Ke4 Kg5 Kd5 Kf4 a4 c5 g4 c4 f6 h3 b6 e4 g5 h6 d3+ e3 g6 b2 b7 b3 b8R h2 f7 Bg7 Kd6 Bd4 f8Q+ Nf6 a5 Bb7 a6 Bg2 Nc3 b1Q g7 b2 Ra2 Qa1 g8Q b1B a7 Bc2 Nb5 Qc3 Qd2 Bd1 Nc7 Qa1 Qe7 Nd5 Be2 Nb4 Nf3 Nc2 Rf1 h1B Rbb2 Na3 Ne5 Qf8 f3 Re8 a8R Qg7 Qf6+ Kg3 f4 Re7 Qd8 Rf8 Bh5 e2 f5 e1B Qc2 Ba5 Rf2 c3 Rf3+ Kh2 Rab8 Kg1 Bf4 Rff7 Qc1 Rf8 Re3 Kf1 Rf3+ Ke1 Rc2 Ree8 Rab2 Qa2 Nf7 Re2 Ne5 Qg3 Ke7 Qd5 Qe6 Qa8 f6 Qg7+ f7 Re8+ Kd6 Rf2 Qef6 Re7 Ng6 Ree2 Ne5 Bh3 Ke7 Bf5 R8b6 Bg2 Re6 Bh7 Kd6 Bf5 Re8 Be4 Ke7
1bRB4/2R1Nr1Q/1prN2p1/r4Qr1/1rBKQ3/3b1P1n/pPk1q3/2qQ1B2 b - - 0 1 legal: proof: e4 c5 a4 f5 g4 h5 a5 hxg4 a6 Nc6 exf5 b6 d3 Na5 d4 Nb7 axb7 cxd4 Ke2 Kf7 Kd3 Kf6 b8Q e5 h4 a5 c4 d5 c5 e4+ Kc2 d3+ Kc3 g6 f3 g3 h5 d4+ Kc4 g2 h6 a4 h7 e3 c6 d2 c7 Ke5 f6 d3 f7 a3 Qb3 d1R Qa4 d2 Ne2 g1R Rh3 a2 Rh5+ Rg5 Na3 Qe7 Qc6 Bf5 Nb5 Ra5 Nec3 e2 Qbe8 e1Q c8B Nf6 Nd5 Ne4 Be6 Nf2 Nd6 Nh3 Qca8 Bg7 f8Q Bd3+ Kc3 Rg8 h8Q Qe2 Rh7 Qc7+ Qac6 Bf6 Ne7 Rg7 Rb1 Rf7 Bc4 Re1 Rg7 d1R Qh7 Qc8 Be3 Rd2 Rc1 Rc2+ Kb3 Rd1 Bf2 Re1 Bh4 Kd4 Qa8 Ke3 Qe4+ Kd2 Kb4 Be5 Rg8 Rg7 Qff5 Rf7 Rh8 Rc3 Rf8 Rca3 Rh8 R3a4+ Kb3 Bf4 Rc2+ Kd1 Kc3 Rb4 Kd4 Qc7 Qec8 Bg3 Qce6 Bf4 Rc3 Kd2 Rc8 Rc1 Ra3 Kc2 Ra4 Rab5 Ra7 Ra5 Q6e5 Bh2 Qg3 Qc6 Qe1 Bg3 Nb7 Bb8 Nd6 Qc7 Rb7 Qc6 Rbc7 Rg2 Ng8 Kb1 Bd8 Rb3 Be6 Rg5 Bd5 Rb4+ Ke5 Qcc2 Ne7 Qcd1 Nc4 Rc3 Kd4 Qc1 Be6 Kc2 Bd5 Rbb5 Nd6 Rc6 Bc4 Rb4 Qd1+
2Rq1b2/Kp4B1/Nr1RN1rQ/qB3Np1/pQ1n2PQ/1P3Q2/1n1q4/k2r2q1 b - - 0 2 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 Be7 Qc2 Bc5 Qd1 Bf8 a4 g5 a5 Bf5 h5 Na6 Ra4 Bg6 hxg6 Nb4 a6 Nxa6 Ra5 Nb4 Ra1 Na2 Kf2 Qd6 g4 Kd7 e4 h5 d4 a5 b3 c5 e5 f5 g7 h4 Nd2 h3 Bb2 h2 Ne4 c4 Ne2 f3 Ke3 c3 N2g3 f2 Rc1 Ne7 g8Q a4 Qh7 c2 Qh6 Nb4 e6+ Kc7 Ba6 Kb6 Nc5 f1Q Bb5 Nec6 e7 Ka5 e8Q Rg8 Qeh5 Ra6 Qh4 f4+ Ke4 f3 Nf5 f2 Qf3 Qf6 d6 Rg6 d5 Nd3 d7 Kb4 d6 Qe1+ Kd5 f1Q d8N Qff2 Rg1 h1Q d7 Qec3 Rgf1 Qhg1 Rfd1 Qe7 Ba1 Ka3 Nde6 Ka2 d8Q Qa5 Qd6 Qed8 Bg7 Nb2 Rd4 Qfd2 Rd3 Ra8 Rd4 Rc8 Na6 Rc7 Kc5 Re7 Nec7 Re3 Rd5 Nd4 Qe7 Ree6 Qd6 Qac3+ Kb6 Qa5+ Ka7 Ref6 Qb4 Rb6 Re1 c1R Ne6 Kb1 Rd6 Ka1 Re3 Rf1 Rc3 Rd1 Rc8
1R1N4/1n2p2N/2K2B1Q/r2rpB2/R3PnBP/r5Bq/2Qqpnn1/2k1b1R1 b - - 0 1 illegal: No proof kernel
2B2b2/BBr5/bN5k/4R2Q/1q1pNrq1/3P1Ppb/2pR1Q2/K1N1nNqb b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 hxg4 b3 b5 Nf3 b4 Ng1 Nc6 Na3 Na7 Nb1 Nb5 cxb5 a4 Qf3 axb3 Qe2 Ra6 Qd1 Ra8 h4 Kf7 a4 g5 f6 Kg6 f7 e5 a5 d5 b6 c5 b7 e4 b8Q b2 a6 c4 a7 b3 Ke2 c3 Ra6+ Nf6 Ra5 e3 Kd3 e2 Qg3 e1Q Ne2 Nh7 Rh2 Bc5 Bh3 Qd7 f8N+ Kg7 h5 Ba6+ Rb5 Rc8 a8B Rc7 Bb7 Qc8 Nd7 Rf8 Qg2 Rf4 h6+ Kg6 Qg3 Bf8 Qg1 g3 Be6 g4 Qf1 Ng5 h7 g2 h8N+ Kg7 Nf7 g1Q Nd6 c2 Rg2 Kg6 Ne4 Kh6 Kd4 Bd6 d3 g3 Ra5 Bf8 Be3 Qd2 Nc1 Qe1 Nd2 b1B Rb5 b2 Qde2 Ba2 Qf3 Bc4 Kc3 Bb3+ Bc5 Ba2 Qd1 Nf3 Bf5 Bc4 Ba7 Bb3+ Nec5 b1B Kb2 d4 Nb6 B1a2 Ka1 Qd7 Qfe2 Be6 Nf1 Qg7 Qed2 Bed5 Bfc8 Bc6 Q2e2 Qb4 Qdd2 Qd7 Qe5 Ne1 Qh5+ Kg7 Rh2 Bh1 f3 Be6 Ne4 Bh3 Re5 Qg4 Qe3 Bb5 Rd2 Ba6 Qe8 Kh7 Qf2 Kh6 Qh5+
1B1n3K/1rqn1B2/1Q5p/5b2/N1n1Nnpq/RpBR3P/1PkQr2q/RR6 b - - 1 2 legal: proof: d4 f5 c3 e5 c4 d5 cxd5 exd4 g4 fxg4 a3 b5 Bg5 b4 Be3 b3 Bc1 Bb4+ axb4 Qf6 Bh3 Qe7 Bf1 Qd8 Kd2 Ke7 Kd3 Kd6 Ke4 a5 f4 g3 Ra2 c5 b5 g5 b6 d3 b7 a4 h3 h6 f5 g2 f6 a3 f7 d2 f8Q+ Ne7 Nf3 g1N Nc3 c4 Qf6+ Kc5 Ke5 g4 e4 Bf5 d6 Ra7 d7 Re8 Ng5 Ne2 Qg6 Kb4 Kf6 Nec6+ Kg7 Re6 Qc2 d1N e5 Ne3 Bd2 Kc5 Bg2 Kd4 Bd5 Re8 Qc1 Kd3 Bf7 Qe7 d8R+ Qd6 Na4 c3 e6 c2 Qe1 c1Q e7 Qc4 Nc3 Kc2 Na4 Qh2 Bc3 Nf4 Nc5 Nb4 Qb6 N4c6 Rd3 Nd8 Rf1 Nbc6 b8B Ne5 Ra1 a2 Rad1 a1Q Rg1 Qa2 Ra1 Qb1 Ra3 Rb7 Na4 Qc1 Rh1 Nd7 Qd2+ Kb1 Rf1 Qe1 Rg1 Qc7 Rf1 Rh8 e8R Nc4 Re2 Re8 Rg1 Qc1 Ree1 Re2 Kh8 Qd1 Ref1 Qc1 Ne4 Qe1 Qde3 Kc2 Rh1 Qef2 Rfa1 Qfg3 Rhb1 Qh4 Qd2+
4N3/BB2k2K/1B1Np2b/pP2Rr1n/P2NQqR1/2qp1q2/2Q5/nn3rqB b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c3 b5 c4 bxc4 d3 c5 Bf4 c3 Bg3 c2 Bf4 c4 Be3 c3 Bh6 Ba6 Bc1 Bc4 dxc4 Qc7 Qd2 Qa5 Qd1 Qd8 Ke2 a5 Kd3 h5 Ke4 h3 f4 h4 a4 d6 b4 h2 g4 h3 g5 Qc7 c5 Rh4 f6 d5+ Kf5 d4 Kg6 e6 f5 d3 f7+ Kd8 c6 Bh6 f8B Nf6 b5 Qg3 c7+ Kd7 c8B+ Kd8 Bg2 Qc7 Bc5 Nbd7 B1e3 c1N Bb6 c2 Bcb7 Re4 Na3 Bf8 Nc4 Ke7 Nd6 Bh6 Ne2 Qc3 Rg1 h1Q Nd4 Nh5 Kh7 h2 g6 Ne2 g7 c1Q Qc2 Rf8 g8Q Q1d2 Qg4 Nc5 Rae1 Re5 Qe4 Nb3 Bf2 Qf4 f6+ Kd7 f7 Ke7 Bf3 Na1 Rg4 Qg1 Bh1 Rf5 Be3 Qb3 Ba7 Nc3 Re2 Nb1 Bb6 Rg8 f8N Qc3 Nd7 Rgf8 Nf6 Rf7+ Kg6 Rf8 Nfe8 R8f6+ Kh7 Rf8 Bf3 h1Q Ba7 Qh3 Bh1 Qhg3 Nf3 Q3g2 Beb6 Q2f2 Nd4 Q2f3 Re3 Qfd1 Nb3 R5f6 Reg3 Qfd2 Qg2 Rf1 Nd4 Qf4 Re3 Rf5 Re5 Qe2 Qc6 Qef3 Qe4
rkR1bKBB/5BP1/1bp4Q/p1N4n/P1p1Q1R1/q2Nr3/1bq3N1/1qN3q1 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 c4 bxc4 Bf4 e5 dxe5 Na6 Bc1 Nc5 Bh3 Ne4 Bg2 fxg4 Bf1 g3 Nd2 g4 Nb1 Ng5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 d5 Ke3 Kd7 Kd4 a5 a4 h5 e4 h4 f4 g2 b4 g3 g6 h3 f5 h2 f6 Rh7 f7 Qf6 b5 Qh4 e6+ Kd6 b6 Ba6 b7 Nf6 b8N Qh6 e5+ Ke7 Kc5 Kd8+ e7+ Kc8 e6 Bb7 Qd2 Bg7 e8B Nh5 f8N Qf4 e7 Bb2 Na3 Qh6 Ne2 Ra7 Nfd7 Bh8 Ne5 Ba8 Nd3 Ra6 Nd7 Qg5 Bf7 Bb2 Rg1 h1Q Nc2 Bc6 Ne3 Ra8 e8Q+ Kb7 Bg8 Re7 Ra3 Qh3 Rc3 Re5 Qe7 Qgf5 Qh7 Ree8 Qh6 Qf2 Qc2 Qe1 Bd2 Qb1 Nec1 Re6 Be2 Ree8 Bg4 Kc8 B4e6 d4 Rb3 Re7 Bef7 Re8 Bc3 Re4 Nb4 d3 Bh8 d2 g7 d1Q Nbd3 Re7 Qe2 Qdc2 Rb7 Bb5 Kd5 Re4 N7c5 Be8 Qf3 c6+ Kd6 Re5 Ra7 Kb8 Rc7 Re7 Qe4 Re5 Re1 g1B Ng2 Bgd4 Rg1 Be3 Nb7 Bb6 Nbc5 Re7 Qh4 Re3 Qe4 Qg4 Ke7 Qf3 Nh4 g2 Kf8 Bf6 Rd1 g1Q Ng2 Ba1 Rf1 Qg3 Rf4 Bb2 Rg4 Qe5 Qf3 Qec3 Qe4 Qa3 Rc8+
3b1QQb/1B2q1Pb/6r1/2r4r/RK1NQ2B/p2r2p1/P2B1pN1/nB2qkR1 b - - 0 1 illegal: No possible last move, all moves rejected
2R1nn2/kPB1K3/4Q1qp/n1BqN2p/B1Rq1p2/Q1r4P/1R1rN3/q3B2b b - - 0 1 illegal: No proof kernel
2r1r1Q1/1q2Q2K/nR3p1p/Nn3N1q/B1B1bP2/4QP1k/rB2p1B1/4rRn1 b - - 0 1 legal: proof: h4 b5 a4 c5 axb5 g5 d4 gxh4 e3 cxd4 Qg4 Bh6 Qd1 Bf4 exf4 Qc7 Ra2 Qb6 Ra1 Qd8 Ke2 a5 Kf3 e5 Ke4 Ke7 Kf5 f6 b4 d3 g4 d2 c4 h3 b6 h2 b5 a4 f3 a3 b7 e4 b6 h6 Kg6 d5 g5 a2 c5 d4 c6 e3 c7 d3 Na3 Na6 b8Q Qd7 Bg2 Bb7 Qb3 d1N c8B d2 Bb2 Nf2 Ne2 d1R Nd4 e2 Qa7 Nh3 Rf1 h1Q Rb1 a1R Nc4 Ra2 Qe3+ Be4+ Nf5+ Ke6 b7 Ng1 b8Q Re1 Na5 Ne7+ Kg7 Re8 g6 Qh5 Kh7 Nc6+ g7 Nd4 Bh1 Nb5 Qab7 Kf7 g8B+ Kf8+ Bf7 Qe7 Q7a7 Qb7 Bd7 Rc8 Bc4 Re8 Bd3 Kf7 Qd8 Rc8 Qa8 Nc3 Ba4 Nb5 Bc4+ Re6 Kh8 Kg6 Qf8 Ree8 Qaa7 Qg5 Qg8+ Kh5 Qac5 Qg6 Qe7 Qg5 Nd6 Kh4 Nf5+ Kh3 Kh7 Qa7 Rd1 Qd7 Rd6 Qh5 Rb6 Qb7 Bg2+
1r1QK3/2B1p3/2Rb1R2/Qp1q4/2N1PPB1/pnbkrr2/NQ2b1R1/q3r1R1 b - - 0 1 illegal: No proof kernel
3N1BrR/Q3pqQ1/N1qq2p1/2N3Kn/Bb2PQ2/P5n1/1npq4/1Rkb2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
2B5/2R1KQ2/Rr4RB/pP2pq2/n2qR2Q/1Q1nq3/1k1bP1pq/1bNn1N2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 Kc5 h5 c4 d5 b4 g2 g6 h4 g7 h3 b6 g3 b7 h2 b5 d3 Nc3 d4 Na2 d2 Qb3 d1N Bh6 d3 Nc1 d2 Ra4 Nf6 g8R Qd3 Rg6 Nc6 b8Q+ Ke4 f4 e5+ Qd6 Nb4 f5 Nfd5 f6 N5c3 f7 Bf5 Nf3 Qb1 Rg1 h1Q Qe7 Qh2 Ra6 Nd3+ Kd6 Bg7 Qf6 Rb8 f8Q Rb6+ Ke7 Bg6 Rb4 Na4 Q8f7 Qc2 Ng5+ Kd4 Ne4 Bh7 Qh4 Bf5 Nf2+ Be4 Ng4 Bf5 Ne3+ Be4 Qb1 Kc3 c5 Bf5 c6 Bf6+ Ke8 Bg5 c7 Bg6 Re4 Bh7 Rh1 g1Q Bh3 g2 Nf1 Qe3 Bc8 Bf5 Qba2 Bf4 Qad5 Kb2 Ke7 Bg6 Bg4 Qb1 c8R Qc2 Rg8 Qc8 Qc4 Qf5 Qb3+ Ka1 Qfe6 Qf6+ Kd7 N3b2 Na2 Ndc3 Ng3+ d1Q+ Rd4 Qec1 Qf7 Bb1 Rg6 Qg5 Be6 Qf5 Ke7 Be3 Rf4 Qd4 Re4 Nd3 Bc8 Qd2 Rc1 Nd1 Nf1 Bf4 Qbd5 Kb2 Rc7 Be3 Nc1 Bg5+ Qf6 Qdf4 Qg8 Qf3 Qe6 Bd2 Qff7 Qfe3 Qb3+
1N3n1Q/n4pK1/2pkq1n1/q2NQp2/1bQ1n3/1bP1RBR1/3B2P1/r1bQ2B1 b - - 0 1 legal: proof: f4 a5 h4 b5 a4 d5 axb5 g6 e4 dxe4 f5 gxf5 Ke2 Ra6 Kf2 Rg6 Ke1 Rg5 hxg5 Qd6 Rh3 Qd7 Rh1 Qd8 Ke2 Kd7 Ke3 e5 d4 h5 b4 c6 d5 a4 g6 h4 d6 h3 b6 a3 b5 a2 b7 h2 g7 Rh7 b6 Qf6 Be2 Qe6 Bd2 Ne7 g8Q Ng6 Nf3 Rh6 Rg1 h1N Qh8 Ng3 Nc3 Rh1 Nd5 Be7 Rc1 a1N Re1 Nb3 Ra1 Nd4 Ra3 Bf8 Rd3 Nb5 c3 Na7 Qb3 Rg1 Qc4 Rf1 Ng5 Be7 Bf3 Bf8 Re2 Ra1 Nh7 Be7 Nb4 Qd5 Na6 Ke6 d7 Kd6 d8B Nd7 Nb8 Ndf8 Nf6 Bd7 Qh1 Be6 Qd1 Bc8 Kf2 Be6 Rde3 Qa5 Nd5 Nh5 Rd3 Nf6 Kg3 e3 Re1 e2 Re3 Nf4 Kh4 e4 Kg5 N4g6 Rh1 e1B Kh6 Bg3 Rh3 Bf4+ Kg7 Bg5 Rg3 Bf4 Re1 e3 Re2 Ne4 Re1 Bh4 Bf6 e2 Bd4 Bd8 Bg1 Bc7 Nd7 Be3 b8Q Bc5 b7 Bb4 Qc8 Bd8 Nb8 Bg5 Rf1 e1Q Qe8 Nd7 Qh8 Qe2 Re1 Ndf8 Qa6 Qc4 Re3 Qe2 Nc7 Bb3 Nd5 Bf4 Qc4 Nc5 Rd3 Qe6 Re3 Ne4 Na6 Qc7 b8Q Bg5 Qe8 Qa5 Nb8 Nh7 Rd3 Qc8 Be1 Bc1 Re3 Nhf8 Bd2 Nf2 Qee4 Qe6 Qed4 Ne4 Qe5+
2nR2Q1/b2BBQ1K/1bPpBpR1/1qkRqR2/5N2/1bpnn3/3b1P1N/2r5 b - - 0 1 illegal: No proof kernel
4NN1Q/Rp3Br1/p2q1p1Q/4NRNq/1k1qb3/Qn1r4/n1nPnP2/3KB3 b - - 0 1 illegal: Other
1K1R1q2/1bpRp3/1N1rQ3/1N5n/Pn1r2n1/1p2P3/qk3qQ1/2qBQRBR b - - 0 1 legal: proof: g4 a5 c4 g5 b4 axb4 h4 d5 cxd5 f5 Rh2 Bh6 Rh3 fxg4 Rh1 g3 Bg2 g4 Bf1 Bg5 hxg5 Ra6 Nc3 Ra7 Nb1 Ra8 a4 Kf7 f4 h5 d4 b5 Kd2 b3 Kc3 b2 Kb4 g2 Kc5 b4 g6+ Kf6 f5 g3 g7 b3 d6 h4 d7 h3 d5 Ke5 d6 h2 f6 Ba6 f7 Ke4 f8Q Rh6 Nc3+ Ke5 Qf2 b1Q Qde1 Qf8 d8R Bb7 d7 Nc6 Nh3 g1Q Nb5 g2 Nf4 Rd6 Be3 Nf6 g8Q Ng4 Nd5 Nb4 Nb6 Qa2 Qff7 Qf2 Rc1 Qf3 Bg1 Qf2+ e3 Ke4 Qg5 Rd4 Be2 Ra6 Bd1 Kd3 Nc4 Rf6 Nb6 Rfd6 Qe6 Q2f4 Bf2 g1Q Ra1 Qf1 Bg1 Q4f2 Rb1 Qfd2 Qgd5 Q1f2 Qg2 Qdb2 Ra8 Qba3 d8R Q3b2 Rd7 Qba1 Be2+ Kc2 Rc1+ Kb2 Bd1 Q1b1 Rad8 Qba1 Rc4 Rd3 Rf4 Qc1+ Nc3 R3d4 Kb5 Qfd2 Rf1 Qe2+ Ka5 Qef2 Nb5 Nf6 Qg5 Nbd5 Qgg4 Nh5 Qg2 Bc6 Ka6 Bb7+ Ka7 Nb4 Kb8 Qfd2 Bf2 Qdc2 Rhg1 h1N Bh4 Nf2 Rh1 Ng4 Bf2 Q2d2 Bg1 Qe2 Na7 Qef2 Nb5
BQ1N2R1/Rp2qR2/3n1P2/2p1qr2/n2Nk1r1/KPpq4/R1QrB3/q3b1B1 b - - 0 1 illegal: No proof kernel
k5N1/Rp2N1rb/Q1pP3r/7n/r2Q2qp/qP2qr1B/NRB2n2/1K2B2B b - - 0 1 illegal: No possible last move
4r1R1/1pB1Qn2/p1R1q2Q/r5rN/5Qr1/1PB1qb1k/B1pn1P2/QNK4n b - - 0 1 illegal: No proof kernel
Kn2R3/2pQ1PN1/p1B1Q3/1bN4R/2QqR2q/1r1qpn2/P2rn2k/2Q1q1B1 b - - 0 1 legal: proof: g4 b5 e4 g5 h4 f5 c4 bxc4 Be2 d5 Bf1 Bh6 gxf5 dxe4 Bd3 g4 Bf1 Bg5 hxg5 Qd3 Be2 Qd6 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 g3 f4 e6 g6 h4 b5 a6 b6 c3 g7 c2 b7 h3 f6 e3 f7 e2 f8Q+ Qe7 f5 e1N f6 h2 Nc3 g2 Qe8 Qd7 Bb5 Rh6 Nh3 Qd8 Na4 Nd3 Ng5 Ra7 Bc6 Ne5 Nc5 Ne7 g8Q g1Q+ Ke4 Nf5 d4 Qd7 d5 Nf3 Be3 c1Q Bf2 e5 Nge6 N5d4 Ng7 Ne2 f7 Qb2 Qc1 Qe1 Qh7 Rg6 Qh4 Rg2 Rb1 Qa1 Rb4 Qd8 Qhf4 Bd7 Qc4 Ra8 Qfc1 Rg3 Rg1 Rh3 Rg5 h1Q Rh5 Qhf1 Ra4 Qf6 Qc8 Be8 Rb4 Qh4+ Qg4 Nfd4 Ra4 Rb3 Rb4 Nf3 Ra4 Ke7 d6+ Kf6 Kd5 e4 d7 e3 Qh3 Qac3 d8Q+ Kg6 Qdd7 Qa1 Rh6+ Kg5 Qhe6 Qac3 Ne4+ Kf4 Rh5 Ned4 Nc5 Qfd3 Bg1 Kg3 Bf2+ Kg2 Qd8 Nd7 b8R Kh2 Rc8 Nb8 Qde7 Bd7 Re8 Ra7 Qd8 Rab7 Qc8 Rb2 Qd8 R7b3 Rb4 Bc8 Qdd7 Rd2 Ba4 Bb7+ Qec6 Ne5 Qb5 Nf5+ Rd4 Qa1 Qbc4 Nf3 Qe6 Bc8 Q6b5 Nd7 Kc6 Ng3 Re4 Qad4 Ree5 Nf6 Re4 Bd7+ Kb7 Ne2 Ka8 Bc6+ Nb7 Nd7 Qbd5 Nb8 Qdd7 Bb5 Nc5 Ng3 Qb4 Bc4 Bc6 Bb5 Qbc4 Ne2 Bg1+
5bb1/2R3pB/q1nN2k1/b2qn1BR/Rp1P2R1/1rp3NK/1Q1Q1qP1/3N2q1 b - - 0 1 illegal: No possible last move
rB2nB1N/r2k1B2/2p1p1Q1/1bn3bK/QNr1Prp1/1R2B1r1/1R4Pb/2N5 b - - 0 2 legal: proof: f4 d5 c4 dxc4 a4 b5 axb5 e6 h4 Qe7 h5 Kd7 f5 Nh6 f6 Ng4 h6 Nxh6 fxe7 Ng4 Rh5 Nh2 Rh4 Ng4 Rh1 Nh2 Kf2 g5 Kg3 a5 e4 f5 d4 h5 b4 c3 b6 a4 b5 c2 d5 a3 d6 a2 b7 c6 b6 Na6 b8B Rg8 b7 Nc5 Be2 Ng4 Nc3 Nf6 Rh3 Ne8 Rb1 a1R Be3 c1B Rb2 R1a7 Qa4 h4+ Kf3 f4 Kg4 f3 Nd5 f2 Kh5 f1R Nb4 Bd2 Bg4 Rf3 Ne2 Rf4 Nc1 Rg7 Rf3 h3 Bc7 h2 b8B Rg8 Bf5 Ba6 Bg6 Bb5 Bf7 h1R+ Rh3 Rd1 Bb6 Na6 Bbc5 Bh6 Rf3 Bc3 Rh3 Rd4 Rg3 Rc4 Rf3 Kc8 Rh3 Be5 d7+ Kb7 d8N+ Kc8 Bcd6 Nc5 Rg3 Rg4 Rf3 Bh2 Rh3 Rf4 Rf3 Nc7 e8Q Rg7 Qg8 Kd7 Bf8 Ne8 Rg3 g4 Qh7 Bg5 Qg6 Ra6 Bd4 Ra5 Rgb3 R5a7 Be3 Rf3 Bg8 Rg3 Nf7 Rh7+ Qh6 Rg7 Nh8 Rf7 Qg6 Rf4 Bf7
NQn3N1/p1p1PrB1/1r2b2K/P1B1Q1np/8/RQn1n2B/5kRB/2n1bb2 b - - 0 1 legal: proof: f4 b5 h4 g5 c4 gxh4 e4 e5 Rh3 d5 Rh1 Qg5 exd5 bxc4 Nc3 e4 Nb1 Qe5 fxe5 Be7 Qf3 Bc5 Qd1 Bf8 Ke2 Kd7 Ke3 f5 Kf4 h5 Kg5 c3 d4 f4 g4 h3 b4 e3 a4 c2 e6+ Kd6 a5 e2 b5 e1N b6 h2 b7 f3 Nh3 f2 Qe2 Rh7 Na3 Nf6 Bf4+ Ke7 d6+ Ke8 d5 c1N d7+ Ke7 d8B+ Ke8 d6 Be7 d7+ Kf8 Rg1 Kg7 Rg2 h1B Nc4 Bf8 Qe5 Nc6 b8Q Bb4 Ra3 Ne7 Bh2 Rh6 Nb6 Nf3+ Kf4 Kg6 Ng5 Be1 Ne4 Ba6 g5 Nc8 Be7 Rh7 d8B Rf7 Bc5 Nd5+ Kg3 Be2 Nf6 Nc3 Ng8 Bc4 Bf6 Ba6 Qd6 Kf5 g6 Ke4 e7 Ng5 Kh4 Kf3 g7 Bc4 Qe5 Bb3 Na4 Be6 Qb3 Rb8 Nb6 Rb7 Na8 Rb4+ Rg4 Rb6 Bh3 Bd2 Rg2 f1N Nh6 Ne3 g8Q Nb5 Bg7 Nc3 Rg1 Ke2 Rg2+ Ke1 Qf8 Kf1 Ng8 Be1+ Rg3+ Kf2 Qd8 Nd6 Qb8 Bg2 Rg4 Bf1 Rg1 Nh7 Rg3 Nc8 Rg4 Nf8 Kg5 Nh7+ Kh6 Ng5 Rg2+
1n2n1kr/2N3n1/Bb5p/B1p2NN1/p1KPnn2/4rRqB/NQP2n1R/4Q3 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 h3 fxg4 Ra6 g3 Ra1 g2 Na3 g5 Nb1 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd4 Rh3 Qd7 Rh1 Qd8 Ke2 Kf7 f4 a5 d4 c5 b4 e5 f5 h6 b6 e3 Kd3 e2 g5 e1N+ Kc4 a4 b5 e4 b7 e3 f6 e2 g6+ Ke8 g7 Kf7 b6 Qc7 Nh3 g1N Ra3 g2 Bd2 Bd6 Rf3 Nd3 Ba5 e1N Rh2 Nf4 Nc3 Ned3 Qe1 Nh5 Na2 Ndf4 Bd3 Nge2 Ng5+ Ke8 Bf5 g1N f7+ Ke7 f8N Ngf6 g8B Ngh3 Bd3 Ng7 Be6 Nf2 Bh3 Nfe8 Nfe6 Nc3 Bdf1 Be5 Be2 Qd6 Nc7 Kf8 Bef1 Nce4 Bd3 Na6 b8N Kg8 Nc6 Nb8 b7 Bf6 Bdf1 Bd8 Be2 Ra6 Bd3 Rb6 Bdf1 Rb3 Ne7+ Kf8 Be2 Re3 Nf5 Kg8 Bd3 Nd7 b8Q Qe5 Qb2 Nb8 Na6 Bb6 Be2 Nfe6 Nc7 Qf4 Kd5 Qg3 Ba6 Nf4+ Kc4
1b6/1n3rrB/bnp1bpBN/1QbR1P1n/4p3/b3Rk2/KNP2N1B/2QN4 b - - 1 2 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 b4 gxh4 Bb2 a5 Ba3 a4 Bc1 Qd6 Rh2 Qa6 Rh1 Qa5 bxa5 Bd7 Bd3 Bf5 Bf1 Bc8 g4 Kd7 f4 Kd6 d4 Kd5 Kd2 h5 Kc3 e5 Kb2 f6 a6 a3+ Ka2 e3 g5 Ke4 g6 e2 f5 e1B a7 h3 d5 c6 b6 h4 b7 h2 d6 h3 g7 Ne7 g8B Bf2 d7 Na6 b8Q Rh7 d8N Nc5 Bb5 Rg7 Bbc4 Nb7 Nf7 Bc5 Bf4 Nd5 Nh6 Nb6 Bcf7 Bfe7 Bg6 Rf7 Ne2 Kf3 Re1 h1B Qc1 h2 Ng3 e4 Rd1 Bg2 B8h7 h1N Nc3 Be6+ Rd5 Bf1 Nd1 Ba6 Qe5 Rg8 a8N Bf8 Qeb2 Bfd6 Qb5 Bb8 Bc7 Rgg7 Be5 Nf2 Nh1 Nh3 Bh2 Nf4 Nhf2 Nh5 Rb1 Bd4 Rb3+ Be3 Ka1 a2 Kb2 a1B+ Ka2 Bb2 Rc3 Na4 Nb6 Ba3 Nc4 Nb6 Ncb2 Be7 Rd3 Ba3 Rd2 Bd4 Re2 Bdc5 Re3+
2nQ2NB/B2R1bK1/6N1/bk1p2b1/2p2Rr1/2P1r3/BnpPB3/1rb2nNQ b - - 1 2 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 c3 b4 Bb5 b3 Bc4 c6 Bf1 Qa5 Qc2 Qb5 axb5 bxc2 Ke2 h5 Kd3 a5 Ke4 e5 b4 c5 g4 a4 f4 h3 b6 a3 b5 a2 b7 d6 b6 Kd7 g5 Kc6 f6 h2 f7 h4 f5 h3 f6 Ra7 g6 Ne7 g7 Be6 g8B Nd7 b8Q Nc8 b7 Ndb6 Qa8 Na4 Be2 Nb2 Na3 Ra4+ Nc4 Kb5 b8B Rb4 Rb1 a1B Ba7 Bh6 f8Q Bg5 Qd8 Bf7 Kf5 e4 Qd5 e3 Ne5+ Rc4 Ng4 Rh7 Bf3 e2 Nh6 e1B Be2 Beh4 Qg2 Bd5 Kg6 Re7 f7 Re3 f8N Bf7+ Kg7 Bf2 Bf3 Rg4 Ng6 Bfh4 Bd5 Bf2 Ba2 c4 Bh7 d5 Ng8 Bg3 Qf1 Bd6 Bd4 Bb4 Qe1 Nd1 Ba3 Nb2 Bf6 Ba5 Bc5 Rgg3 Ba7 Rg2 Nf3 Rg4 Rf1 h1N Ng1 h2 Rf4 Ng3 Qf1 h1R Qg2 Rh2 Qh1 Rf2 Re1 Rf1 Re2 Rb1 Bfd4 Rf3 Re7 Re3 Rd7 Nf1 Nh4 Na4 Bd3 Bb2 Be2 Bc1 Ng6 Nb2 Kh7 Ng3 Bh8 Nf1 Kg7
1R4bb/2Nn1Nn1/2pR4/3QpnRB/1QP2b2/N6k/b1p1P1r1/KBr1r1N1 b - - 1 2 legal: proof: c4 d5 h4 f5 b3 g5 Bb2 g4 Bc3 d4 a4 dxc3 g3 b5 axb5 Qd5 Bg2 f4 Bf1 Qg5 hxg5 fxg3 d4 Kf7 f4 Ke6 b6 Kf5 d5 h5 d6 a5 b4 a4 d7 h4 d8N h3 g6 g2 b7 a3 b5 c6 b6 h2 g7 g3 Qa4 Kg4 Kd1 a2 Kc1 Be6 f5 Nf6 g8B Ne8 f6 Nd7 b8N Ng7 Nf3 g1N b7 g2 f7 Kh3 Bh7 Rg8 Na3 Ra7 Rb1 a1B Qd1 Bf5 Rb2 Bb1 Rd2 Ba2 Bb1 c2 Na6 e6 b8R Bd6 f8Q Bf4 Qc5 Bf6 Qb5 e5 Kb2 Rb7 Ka1 Ra7 Ne1 Nf3 Rg1 Nh4 Qb4 Nhf5 Nc7 Ra5 Rd6 Rd5 Qc1 Rd1 Nf3 Re1 Nf7 Nh5 Rb5 Bh8 Qcd2 Nhg7 Qd5 Kg3 Rh1 g1R Bg2 Rgf1 Rg1 h1B Rb6 Rc1 Rb8 Rfe1 Nd2 Kg4 Bf3+ Kh3 Rg5 Bg2 Bh5 Bh1 Qda5 Bd5 Nf3 Rf8 Nh6 Bg8 Qd5 Rf6 Nf7 Rh6 Bg6 Rh4 Bh5 Rg4 Qa4 Rg3 Qb4 Rg2 Ng1+
2bB4/bN6/R6N/4pnQP/R2r1pp1/Q1n1k1b1/1NQ1P1Qb/KBr3rn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 f5 cxd4 Nd2 Qf6 Nb1 Qe6 fxe6 Bb7 Nc3 Ba6 Nb1 Bc8 Kd2 Ke7 c4 Kd6 Kc2 Kc5 h4 g5 e7 f5 e8Q a5 b6 d5 h5 g3 b7 g4 Qg6 g2 Na3 d3+ Kb1 Kd4 b4 a4 b5 d2 b6 Be7 c5 Na6 b8Q Nc7 c6 Ke3 b7 d4 Nf3 g1B Nh4 d3 Bg2 Nb5 c7 Bh2 Qc2 Nh6 Be4 Rd8 Qa7+ Rd4 b8Q Nc3+ Kb2 Bg5 Qbb7 Bgf4 Qg5 Bg3 Qc5 Ra6 Ra2 Rc6 Ka1 Bh2 Qge7 Bfg3 Qg5+ f4 Nf5+ Kf2 Nc4 d1R Qa3 d2 Nb2 Rg1 Bd3 d1N Bd2 Nb1 Bb4 Nbc3 Be7 Rcc4 Bd8 Rc5 Nd6 Nf5 Nf7 Ke3 Qg2 Rcc4 Nh6 Nf2+ Qd1 Rc6 Bb1 Rc5 Qc2 Rc6 Qc5 a3 Qa7 Rc1 Rd1 Nh1 Rd2 Rg1 Qaa4 Bd7 c8N Be6 Nd6 Bc8 Nb7 Rc7 Nd3 Rc6 Rb2 a2 Rb6 Rc7 Ra6 Rc5 Qa3 Rc7 Kb2 a1B+ Kb3 Rcd7 Nf7 Ne4 Ka2 Ra4 Qb3 Nfd6 Nh6 Rc4 Qaa4 Bd4 Qb2 Rdc7 Ka1 Ba7 Qc1 Rd4 Ra2+ Nd2 Qc5 Nf5 Nb2 Ne4 Qcb4 Rcc1 Qc2 Nc3 R2a4 Nf2 Qc5 Nh1 Qa3
1rbr3n/KQ3R1p/5NRR/P1p1bB1N/3R3B/n1b1p1N1/3Q3P/nn2k1r1 b - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 a5 f4 d5 cxd5 Qd6 b4 axb4 g5 Qf6 gxf6 Ra3 f5 Ra8 Ke2 Kf7 Ke3 b5 Kd4 g5 Kc5 e5+ d6 g4 a4 e3 d4 g3 d5 c6 Kb6 e4 d7 c5 d8R e2 d6 e1B d7 b3 Bh3 b4 Bg5 e3 Nd2 g2 Qb1 b2 Ne2 g1R Bh4 b3 Nf1 Nc6 Neg3 Nge7 Nh5 Bc3 Nfg3 Nb4 a5 Bg7 Ra4 Nc2 Rd4 Rb8+ Ka7 Rg8 Re8 Bh8 d8Q Ng6 Re6 Na1 Qe4 b1N Qb7+ Ne7 Qdd5 b2 Qg2 Bg7 Qd2 Na3 Rc6 b1N Bg4 Rf1 Rg1 Rd8 Rg2 Rg1 Ra6 Kf8 f7 Ng6 Rc6 Nh8 Rh6 Bf6 Bh3 Rd7 Bg4 Ke7 f8N Kf7 Bh3 Be5 f6 Nb3 Ng6 Na1 Ne7 Rd6 Bf5 Rd8 Bd3 Ke6 Nd5 Kd6 Bg6 Ke6 f7 Kd6 f8R Ke6 Qg7 Kd6 Ndf6+ Kc6 Rd7 Kb5 Rff7 Kc4 Bf5 Kb3 Nge4 Kb4 Rgg6 Kc4 Neg3 Kb3 Qd5+ Kb2 Qb7+ Kc1 Rd3 Kc2 Qf8 Kc1 Qd6 Kc2 Rd4+ Kc1 Bd3 Kd1 Bf5+ Ke1 Qdd5 Bc7 Qa2 Be5 Qd2+
1N2Q2r/nb5r/R3P1rp/Bn1R2pP/p1BnB3/3N4/1qQ1k1K1/BQr3n1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 h4 Kf7 c4 Ke6 e4 a5 b4 d5 e5 Kf5 b6 Kg4 b7 g5 f5 d3 Ke3 h6 f6 d2 h5 Qc7 b5 Qd6 f7 Qc6 f8Q Qe8 b6 Ra6 e6 Qb5 c5 Qb4 c6 Ne7 c7 Ra7 Qc2 d1R Bd2 Qb2 Nc3 Rc1 Nh3 Nbc6 b8Q Nd4 b7 Nec6 Bc4 f1N+ Kf2 Ng3 Ne4 Nge2 Rd1 Ng1 Kf1 f2 Kg2 f1R Nc5 Rf6 Na6 Rg6 Qe8 Ne5 Bc3 Nec6 Nf2+ Kf4 Nd3+ Ke3 Bd2+ Ke2 Ra4 Rh7 Ra1 Ra8 Ra2 Na7 Ra1 Bd7 c8B Bc6 Ra2 Ndf3 Ra1 d4 Bd7 Be4 Bc6 Bd5 Qc7 Rc8 b8B Be4 Ba8 Bb7 Qb6 Rd8 Be5 a4 Nb8 Rc8 Ra3 Rd8 Rb3 Rc8 Rb5 Rd8 Rd5 Rc8 Nc5+ d3 Qbb5 Nd4 Ba5+ Ke3 Bf6 d2 Nd3 Ke2 Be5 Qa1 Qbb1 Qb2 Rf1 Rd8 Rf7 Rc8 Rc7 Rd8 Rc6 Rc8 Qb3 d1N Ra6 Nc3 Bh8 Ncb5 Be5 Qc3 Q3c2+ Qd2 Qd7 Rch8 Qe8 Nf5 Bb2 Nfd4 Ba1 Re1 Qcb2 Bc8 Rd7 Rc1 Be4 Bb7 Rd5 Qc2 Qb3 Qb2 Q3c2+
1r3rr1/K2pR1p1/n2Q1RN1/1BNRB1Q1/1Pn4p/b5nP/k1QrQ1n1/4q3 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d4 cxd4 Kf2 Bb7 Ke1 Be4 Kd2 exf4 Ke1 f3 Na3 f4 Nb1 Bf5 gxf5 Be7 Na3 Bd6 Nb1 Bf8 Kd2 Kf7 Kd3 a5 Kc4 h5 e4 d3 b4 h4 h3 d2 e5 f2 b6 a4 Kb5 f3 c4 a3 e6+ Kf6 e7 Ke5 e8R+ Kd4 b7 a2 f6 Qc7 c5 Be7 c6 Na6 b8Q Qg3 Kb6 Nh6 c7 Rg8 c8Q Nf7 Qe2 d1N Qcc2 Ne5 f7 Bf6 f8Q Ne3 Nd2 Ng2 Qd8 Rb8+ Ka7 Nc4 Ne4 Kd5 Qfe7 Bb2 Bf4 Ba3 Nc5 Kd4 Re1 a1R Rf8 Rd1 Rf6 Rd2 Q7e6 Qg5 Qde7 Qe5 Qef5 Qe3 Qg5 Qc3 Be5+ Kd5 Qed1 Qe3 Bd3 f1N Qe2 f2 Nf3 Ng3 Rd1 Qe4 Rhe1 f1R Qf8 Na5 Bb5 Nc4 Nd4 Rf3 Nde6 Qe3 Qe7 Qf2 Nf8 Rf5 Rg1 Qe1 Ng6 Rf2 Rf1 Rf4 Re6 Rff8 Rff6 Nb2 Qb1 Rd3 Bf4+ Kd4 Re5 Kc3 Qd6 Nc4 Re7 Rd5 Qbe4 Rd3 Be5+ Rd4 Qeh5 Kb2 Qhg4 Ka2 Qge2+ Rd2 Qef5 Rb2 Rd5 Rd2 Qc2+
B7/Pp4nK/k3bQB1/bB1Qr1q1/1n2bp1B/R1Q1RPNN/3n2p1/2n4b b - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 h5 bxa5 hxg4 Bc4 Ra6 Bf1 Rd6 Bb2 cxd4 Bc1 d3 Na3 d4 Nb1 Rd5 exd5 Rh5 Be2 Rh6 Bf1 Rh8 Kd2 Kd7 h4 Kc7 a4 f5 c4 e5 h5 g5 h6 e4 a6 Kb6 h7 g3 a7 g2 a8B f4 d6 g4 a5+ Ka6 d7 g3 c5 Nc6 Ra3 Nb4 c6 Nh6 c7 Nf5 Nc3 Ng7 Bb2 Qg5 d8Q Be6 Nh3 g1N c8B Ne2 Qf6 Nc1 Ne2 Be7 Bd7 Re8 h8Q Bd8 Bg2 Bc7 Re1 Bb6 Qb3 Bc7 Qd5 e3+ Kd1 d2 Be4 Nc6 Kc2 d3+ Kc3 d1B Bg6 Nb4 Kd4 d2 Ke4 Ba4 Bd4 d1B Bc5 Bc6 Be7 Ka7 a6 Ba5 Qc3 Kb6 a7 Ka6 Qf8 Bda4 Qf5 Bc2+ Ke5 Be4 Bd8 Qg4 Kf6 Bh1 Be7 g2 Ng3 e2 Bd8 Rh8 Qg5 Rh5 Qh4 Re5 f3 Nb3 Qh6 Nd2 Qh8 Bf5 Kf7 Qg5 Kg8 Be4 Bde8 Bd7 Kh7 Be6 Bf6 Qf5 Bh4 Qg5 Rf1 e1N Bb5+ Kb6 Rf2 Ned3 Re2 Nc1 Qf8 Nb1 Qf6 Nd2 Bc6 Ka6 Re3 Bc8 Ba4+ Be6 Bb5+
b1Qn1kRQ/R1b5/2B5/nPN1Qqb1/2B1ppn1/2r1P1B1/1K1p2bQ/5nN1 b - - 0 1 illegal: No possible last move, all moves rejected
1B3RR1/rQPrNRQ1/5r2/p1nN2NK/R3n3/2pB1p2/2Pb4/qrk1n2n b - - 0 1 legal: proof: h4 c5 f4 g5 a4 gxh4 f5 b5 f6 c4 d3 c3 Ra3 Ba6 Ra1 exf6 Ra3 f5 Ra1 f4 axb5 Bb7 Ra2 Bd5 Ra1 Bc4 dxc4 Bg7 Ra4 Bh6 Ra1 Bf8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 e4 a5 b4 d5 c5 f5+ Kh5 f3 g4 f4 g5 h3 g6 d4 g7 f2 b6 d3 c6 Kd4 b7 d2 c7 Ke3 e5 h2 b5 f3 e6 Na6 b8R Ra7 b6 Nc5 Bd3 f1N e7 h6 b7 Nf6+ Kg6 h5 g8N h4 e8R+ Nfe4 Ne2 h3 Ra4 Qd4 Ne7 Bh6 Nf4 Rf8 Kh5 Rf6 Rf8 Qd8 Rg1 h1N Rf7 h2 Rg8 Qd6 Rbc8 Qe6 b8Q Qa2 Rcf8 Qa1 Ba3 Bg5 Qc1 Bh6 Qcb2 d1R Nd2 Bg5 Q2b7 Rb1 Nb3 Rd1 Nd4 Kd2 Qd8 Ne3 Qd7 Ng2 Nde6 Ne1 Nfd5 Bf4 Bb4 Kc1 Ng5 Bd2 Qg4 Ne6 Bd6 N6c5 Bg3 Nhf2 Bh4 h1R Qg3 Rg1 Qe5 Nh1 Bf2 Rd6 Qg7 Rd7 Nh7 Rg6 Ng5 Rf6 Qh7 Nb3 Qh6 Kb1 Ra3 Ra8 Bb6 Nbc5 Ra4 Kb2 Qh8 Rb1 Ba7+ Kc1 Bb8 Ra7 Qg7
1BN5/1p3R2/qbB2n2/QP1p1bR1/p6N/b2RbQRk/r4P1n/nK1B2n1 b - - 0 1 illegal: No possible last move, all moves rejected
2B2b1r/B1pP4/3p2Q1/N1rN1rpR/1Q1K4/2nP1Qrk/n2R2n1/B2n2Qb b - - 0 1 illegal: No possible last move, all moves rejected
Nn2Rq2/2Bp1p2/1Q1qBP2/qQnpQ1n1/2QNN1nK/R5r1/1b1P4/4k1q1 b - - 0 1 illegal: No proof kernel
QR5K/1bQnp1Np/np1n1n2/1PQ5/q2R2Rk/B1Rq3q/4P1q1/2rB3N b - - 0 1 illegal: No possible last move, all moves rejected
RK1QR2k/4R2P/QP1QNq2/1bRp2B1/5p2/rNr1pp1b/3n3b/nB4n1 b - - 0 1 illegal: No proof kernel
1N1N2BB/1b1P4/2PR2n1/3n4/1nRrq2p/krpR4/2Q1bpp1/1RKQ2bQ b - - 0 1 illegal: No proof kernel
R2NRB2/3PPp2/2K1bN1n/N3k3/pQ4qn/2B5/2prp1Br/2rQbN1b b - - 0 1 illegal: No possible last move, all moves rejected
1N3b2/QP2qpnk/RpK5/Q7/1b5n/PbpB1B2/2Rn1pNQ/2BrrQ2 b - - 0 1 illegal: No proof kernel
1Kb3BN/1P1pN1Pp/Q1QrQp2/3bb1R1/1p6/r3BnN1/k2q1Qn1/nR6 b - - 0 1 illegal: No proof kernel
r2RQ2q/P1K2b1P/B1N1p1nQ/2N5/p4Bp1/3R3n/Rp1N1r1n/1kr1b1N1 b - - 0 1 illegal: No proof kernel
1n1RN1b1/p1RBKnR1/5rkp/Q6b/1N5Q/b1P3pr/3pR1qP/BnN5 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 g4 fxg4 a4 e5 axb5 exd4 Kd2 Kf7 Kd3 g5 Ke4 d5+ Ke5 d3 f4 d4 e4 h6 c6 d2 c7 d3 c3 g3 b6 g2 b7 g4 f5 g3 f6 Na6 b8R Kg6 f7 Bg4 c8R Kg5 Bb2 Bd7 Na3 Nb4 Nc2 Ne7 Kd6 Na6 e5 Kg6 e6 Nc6+ e7 Rg8 Ne2 g1N Rc7 Ne5 Ra2 Ngf3 Qa1 d1B Bh3 Nd2 Rf1 Nb1 Nc1 Bh5 Nb4 Rg7 Rbb7 Nb8 Rd1 Bb5+ Bd7 Bc4 Rd2 Bd5 Re2 d2 Ra5 Bc4 Rd5 Qc8 Qa5 Rg8 Ba4 Qh3 Ba1 Qg2 Bd7 Bb3 Ke6 Ba2 e8N Bc5 f8Q Nf7 Nbd3 Ba3 Qe7 Bb3 Qh4 Rf8 Ng7 Rc8 Ne8 Ba2 Rc4 Rc5 Nb4 Rb5 Rc6 Rc5 Rcc7 Rc4 Qd8 Rh4 Qe7 Rh3 Qh4 Ng5+ Kd6 Bc4 Rd3 Bg8 Ke7 Nf7 Bb5 Na6 Rd8 Rc8 Bd7 Nb8 Rc4 Rc5 Rc7 Rc6 Rf4 Ne5 Rf7 Rf6 Rh7 Nf7 Rg7#
B1q1N2B/b3K3/5N1Q/1N1bbNpP/nQp3qP/Rn1p1r1k/1p2r3/Q3R3 b - - 0 1 illegal: No proof kernel
2n5/6Q1/N1rk1nb1/K2R1p2/p3P3/2R1NP2/pBrBQp1b/q1qrQ1QR b - - 0 1 illegal: No extended proof kernel
r2qq3/RrBb4/1n1K1pB1/2NpNpkN/2r2n2/P2P1bR1/2QB3p/N2Q4 b - - 0 1 legal: proof: f4 g5 b4 a5 h4 axb4 f5 e6 Bb2 exf5 Ba3 Ke7 Bc1 Ke8 hxg5 b5 c3 b3 Bb2 b4 Bc1 b2 Rh3 b3 Rh1 Bb4 cxb4 Qf6 Rh6 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 h5 Kf4 c5 Ke5 h4 e4 h3 g4 c4 g6 h2 g5 c3 g7 c2 b5 Rh7 g6 Ba6 b6 Rh5 b7 Qb6 Na3 b1Q Bd3 b2 Nf3 Qb3 Rg1 Rh4 Rg3 Nh6 g8Q Qa4 g7 Rf4 Qc8 Ng4+ Kd5 Kf6 g8N+ Kg6 e5 Rb4 e6 Bb5 Ne5+ Kg5 e7 Qa5 e8N Qd8 Ngf6 d6 Nc7 Nd7 Nh5 f6 b8B Nb6+ Ke6 d5 Na6 Be8 Nc5 Bd7+ Kd6 Rb5 Be2 Qe8 Rc3 Ne3 Bc7 Ng2 Bg4 Nf4 Rg3 Rb4 d3 Rb3 Bd2 c1R Nc6 Rc4 Ne5 Qc1 Nc2 b1B a3 Ba2 Rb1 Rbb4 Na1 Bb3 Bc3 Qe3 Bd2 Qd8 Rb2 Bc2 Rb3 Rb5 Rb4 Qe4 Ra4 Rb1 Ra7 Rb5 Qc1 Bd1 Qc2 Qe3 Qa6 Bf3 Qaa4 Qe1 Qab3 Na4 Qbb1 Rb7 Qbd1 Qe3 Ng7 Nb6 Bh5+ Kh4 Bg6 Qe2 Ng4 Kg5 Nh5 Qee8 Ne5+
K4bq1/1r2BR2/R1Q2pp1/1b1r3n/5PN1/N2P1q1n/3kp1Bp/b2BBQN1 b - - 0 1 illegal: No proof kernel
Nnn5/1b4k1/2pqBprp/1QP4p/8/nB5N/r1RqPKQR/QNb4N b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 d5 c4 e4 h5 e3 b3 g6 Bb2 gxh5 Bc3 d4 fxe3 dxc3 e4 Nf6 e5 Ng8 g4 a5 d4 c2 d5 c1Q e6 h6 b6 f6 b4 c6 d6 a4 b5 a3 g5 a2 c5 Ra5 b7 Qa3 g6 Qf3 e7 Qd3 b6 Qb5 g7 Kf7 e8N Kg6 d7 Qa6 Nc7 Kf7 Na8 Bd6 Kf2 Ra3 Bh3 Qd3 Rh2 Ra4 Be6+ Kg6 Nh3 Qe7 d8N Rg4 Nf7 Qd5 Nfg5 Qd2 Ne4 Bf4 Ng3 Qed6 Nh1 Ne7 g8B Kg7 Qg1 Rg3 Qg2 Rg6 Bb3 Bg5 Bge6 Rh7 Nc3 Rh8 Rc1 a1N Nb1 Re8 Rc4 Nc2 Rc3 Na3 Rc2 Na6 b8Q Bb7 Qa7 Nb8 Qa5 Nc8 Qc3 Qd1 Qb2 Bc1 Qa1 Q1d2 Bed5 Ba6 b7 Re4 Be6 Rb4 Bbc4 Rb2 Bcd5 Ra2 Bb3 Nd7 b8Q Bb7 Qa7 Nb8 Qa5 Qg5 Qb4 Qgd2 Qb5
Q3qB1B/6N1/p1B4q/Prp1R2k/1ppQ2rb/1n1P1R1N/B4b2/rn3KQ1 b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 h4 gxh4 b3 d6 b4 Bd7 b5 Bc6 bxc6 d5 Qc2 dxc4 Qa4 Qd4 Qd1 Qd8 g4 Kf7 f4 h5 a4 b5 g5 e5 f6 Kg6 f7 b4 f5+ Kh7 g6+ Kh6 f6 e4 c7 e3 c8B h3 a5 h4 g7 a6 Na3 h2 Bd3 h3 Bb2 e2 Nc2 Be7 f8Q Kh5 f7 Qe8 Bd7 Nf6 g8Q Ne4 Ne3 Nc3 Ra3 Nc6 Bb1 Rb8 Nf5 Nd4 Ba2 Nb1 Rf3 Nb3 Bc6 Rb5 d3 Rh6 Qfg7 Rg6 f8B Rg4 Qd4 Bf6 Kf2 e1B+ Kf1 Bfh4 Qgd5 Beg3 Qd8 Bf2 Qa8 Rb8 Qd8 Rb7 Bh8 Rb5 Qd4 Be7 Ne2 Beh4 Rg1 h1Q Nf4+ Kg5 Qe1 h2 Nh3+ Kh5 Re3 Qhe4 Rgg3 Qf4 Rgf3 Qg5 Re5 h1R+ Ke2 Qh6 Qg1 N1d2 Qg2 Ra1 Qg1 Nb1 Kf1 Rg7 Rd5 Rg2 Re5 Rg4 Ng7+
r2R1q2/2r1N1n1/pn1q1RP1/P2N4/Bpp1QBKR/1p2b3/2bQr2k/1Q1R4 b - - 0 1 illegal: No possible last move
k2KNR2/2N4p/3bpB2/q1P3P1/Q7/BppR1BrQ/1Rqr2b1/3q1nRn b - - 0 1 illegal: No possible last move, all moves rejected
Q2Qk2K/1B5p/2PBB1N1/q4b2/rp1B1Pp1/N1p2nr1/1N1qbb2/1R2n2R b - - 0 1 illegal: No possible last move, all moves rejected
2KBR1b1/B1n2BPR/5Q1q/1nq2RQp/3P1p1q/3p1rb1/prNk3B/3N4 b - - 0 1 illegal: No proof kernel
q1r1Q1RB/2rR1PN1/1Nk3R1/p2N4/1p1pKn1p/1q1Q3P/2b1bN2/1n1B3r b - - 0 1 legal: proof: d4 b5 b4 f5 g4 fxg4 a4 e5 a5 c5 bxc5 exd4 Ra3 Bd6 Ra4 Bc7 Ra1 Bb6 axb6 Qf6 Kd2 Qg5+ Ke1 Qd8 Kd2 h5 Kd3 d5 f4 Kd7 e4 a5 c4 g5 c6+ Kd6 f5 h4 f6 b4 c7 g3 b7 g4 c5+ Kd7 e5 g2 f7 g3 e6+ Kc6 e7 Bg4 e8N Ra7 c8N Na6 b8R Ne7 Nh3 g1R Nf2 g2 h3 Nc7 Ng7 Ne6 Nb6 Rc7 Bb2 Qc8 Rh2 Rh1 Be2 g1Q Nc3 Qg3+ Bf3 Qb7 Rg2 Qa8 Rg8 Bh5 Qb3 Bg4 Rd1 Nf4+ Kd2 d3 Ke3 d2 Qc4 Nc8 Qd3 Nd6 Kd4 Bf5 Bg4 Qf3 Bh5 Nc4 Rg6+ Kb7 Ba1 Na3 Bg4 Nb1 c6+ Ka7 Qf1 Bc2 Qd3 Rd7 c7 Kb7 Re1 d1B Re7 Be2 c8Q+ Ka7 Qd8 Kb7 Qe8 Rc7 Rd7 Qg3 Nce4 Qf3 Nf6 Kc6 Ke5 Qe3+ Kf5 Qg3 Be5 d4 Ke4 Bf1 Bd1 Be2 Rg5 Qg4 Nfd5 Qe6 Ne3 Qb3 Bf6 Rh5 Rg6 Rc5 Ned5 Rb5 Nc8 Rb8 Ncb6 Rbc8 Ne6 Qa4 Bh8 Qb3 Ng7+
1N3R2/2b1p2B/QQ1n2b1/rRRKn3/1b5p/B1PNpr1P/Rpkq3q/Q7 b - - 0 1 legal: proof: e4 b5 a4 g5 f4 d5 fxg5 dxe4 axb5 c5 b4 cxb4 Kf2 Kd7 Ke3 Ke6 g4 Kd5 d4 a5 h3 f5 g6 h5 g5 a4 b6 a3 b7 h4 g7 a2 g6 b3 Nc3+ Kc6 d5+ Kc5 d6 Kb4 Kd4 f4 d7 e3 Ne4 f3 Nf2 Ra5 Bd3 Nh6 g8R Nf7 g7 Nd6 Ne2 Qc7 d8Q Bf5 Be4 Nd7 b8R+ Ka4 Re1 Ne5 Rb5 Bg6 Nd3 f2 Kd5 f1Q Ba3 Qf2 Nd4 Qd2 Nc6 Qb8 Rc1 a1B Re2 Bc3 Qb6 Bb4 Qe1 Qc7 Nb8 Rh5 Rh8 Rf5 g8Q Rf3 Qe6 Bh6 Rf8 Bf4 Qc8 Bg3 Qca6 Bh2 c3 Bf4 Ra1 b2 Rf2 Kb3 Ra2 Kc2 Qa1 Qd7 Rg2 Qg4 Rg1 Qgg2 Rc5 Qh2 Rg5 Bh5 Bh7 Bg6 Rgf5 Nec4 Rb5 Ne8 Ke4 Bc7 Kd4 Ned6 Rfc5 Ne5 Kd5
b2q1N2/2rQp3/B1R1Q1p1/p3PQ2/4RPKn/1qNr1r1Q/pB6/1knRb3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 bxa4 g3 Na6 g4 Nb8 g5 Qd7 g6 Qd8 h4 Bf5 h5 Bc8 h6 fxg6 hxg7 Ba6 Qc2 Bb7 Qd1 Bc8 e4 Kd7 Ke2 Kd6 Kf3 Kc5 d4+ Kb4 b3 a5 e5 c5 d6 h5 d7 c4 d5 a3 d6 a2 Ne2 h4 Nf4 h3 Qc2 c3 Rg1 h2 Qf5 h1Q+ Kg4 c2 Nc3 Qb7 Ba6 Nc6 Ne6 Nd4 Rd1 Rh3 Bb2 Ne2 Rac1 Rd3 Re1 Qbb6 Rcd1 Nc1 Re4+ Qd4 f3 Qb6 d8Q Bb7 d7 Nh6+ Kf4 Ra7 g8Q Ba8 Qc8 Rc7 d8Q Qb8 Qh3 Nf5 Qdd7 Bh6+ Kg4 Bd2 f4 Be1 Nf8 Nh4 Qge6 Qb5 Qf5 Qbc4 Qde6 Qd8 Qcd7 Rf3 Ba1 Ka3 b4 Qd5 b5 Qb3 b6 Rd3 b7 Rf3 Nd5 Rcc3 b8R Rce3 Bd4 Rd3 Nc3 Kb2 Rb6 Ka1 Rc6 Kb2 Na4+ Kb1 Rd2 Ne2 Ba1 c1R Bb2 Rc2 Rd1+ Nc1 Rd6 Rc8 Rc6 Rc7 Nc3+
7B/nN1Qp3/4Pbkr/2RBqrq1/1Qq5/1Qp2PpN/bR3Npn/1Q4K1 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Qg3 hxg3 b4 Kf7 d4 g5 h4 c5 e4 a5 h5 c4 e5 g2 f3 a4 Kf2 a3 e6+ Kg7 b6 a2 d6 Kf6 h6 Qd7 h7 Qc6 b5 Nh6 d5 Ba6 b7 Bg7 d7 Kg6 d8Q Be5 b6 Qa4 d6 Nf7 d7 Qc2+ Nd2 Kf5 Bb2 Nc6 b8Q Bf6 b7 Kg6 Nh3 Nh6 Kg1 Na7 Rc1 a1Q Rh2 Qa5 Bd4 Qe5 Ne4 Rf8 h8Q c3 Nef2 Qce4 Rb1 Bc4 Rb5 Ba2 Bc4 Qd3 Bb3 Qc4 Rc5 Rf7 Qb6 Rh7 Q8d6 Rf8 b8Q Rff7 Qhc8 Rf8 d8N Rhh8 Ne4 Rh7 Kf2 g3+ Ke3 g1Q+ Rf2 g2 Rc6 Bg7 Rc5 g4 Rc7 Rf5 Qcd7 Qb4 Bd5 Qc4 Qb1 Qeh2 Q8b3 Qc1+ Rd2 Bh8 Kf2 Bg7 Rc2 Qg5 Nb7 Bh8 Bg7 Qe5 Kg1 g3 Nef2 Ng4 Qdb4 Nh2 Rb2 Rh5 Rc5 Rh6 Bf8 Bf6 Bg7 Qce4 Bh8 Qeh4 Qd3 Qc4 Qb1
3qq3/1r1nprQ1/2pN1B2/1Ppp2bB/5BQ1/1b3PRN/1n1N1B1r/k3KR2 b - - 0 1 illegal: No proof kernel
n2R4/1N1pq3/q3QrRb/1kR1np1N/p4Pn1/1BrN1p2/P2Q2b1/1KN4B b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 g4 f4 Bd6 Qd3 Bf8 Bd2 h6 Qf3 gxf3 g4 Qe7 g5 Qd8 g6 Ne7 Ba5 Ng8 Bb6 Qf6 Bd8 Qb6 Be7 Qd8 Bg5 hxg5 Kd1 f5 Kc1 a5 e4 b5 h4 g4 c4 a4 g7 b4 c6 g3 h5 g2 c7 b3 h6 Qf6 c5 Qg6 h7 Qd6 e6 Qe7 e5 Nc6 Nc3 b2+ Kb1 Ra7 Nd5 Qd6 e7 Qe6 Ne2 g1Q Rh6 Qd4 Bg2 Qf7 Rg6 Qb4 Nc1 Qe1 Bh1 Qf6 Nb4 Ra6 Nd3 Nh6 g8B Ng4 Bb3 Rg8 h8N Bh6 Nf7 Rb6 Nd8 Ba6 c8Q Qa5 Ne1 Bf1 Ned3 Bg2 Qb8 Qg7 Qd6 Qa6 Nb7 Rf8 Qd4 Rf6 Qf2 Rb4 Qc2 Rc4 Qd2 Kf7 e8N Ke7 e6 Nce5 c6 Rc3 c7 Qf7 Ng7 Qf8 Nbc5 Kd6 c8R Qe7 Rd8 Kc6 Nh5 Kb5 Nb7 Nc4 Bd1 Nb6 Bc2 Na8 Bb3 Qc5 e7 Qa3 e8Q Qe7 Be6 Ra3 Kc2 b1N Kb2 Rc3 Bb3 Na3 Qg8 Qe1 Qe6 Nc4+ Kb1 Nce5 Qf7 Nc6 Kb2 Qe6 Ne2 Qe3 Rc1 Rc2+ Kb1 Qe7 Qe6 Rc5 Rc4 Nce5 Nec1 Rc8 Rd4 Rc2 Rc4 Rc3 Rc5+
3Qn1B1/2pp4/2n3k1/br1R1P1q/nBQ2R1p/3brq1P/KpNR1R1N/Q7 b - - 0 1 illegal: No possible last move, all moves rejected
n3q2Q/KPQRrB1p/1PbQ1p1p/2r1qpbr/B3N3/6B1/1RNQ4/5kn1 b - - 0 1 legal: proof: f4 d5 c4 b5 cxd5 e6 a4 Nf6 axb5 Ba6 h4 Ng8 f5 exf5 h5 Bc8 h6 gxh6 Kf2 Ke7 Ke3 Kf6 Kd4 Kg5 g4 Kf4 b4 Kg3 e4 Kf2 b6 a5 d6 a4 Kc5 c6 d4 a3 b5 f6 b7 a2 d5 Ra5 e5 Ra6 e6 Ra7 g5 Ne7 g6 Bg7 d7 Rg8 d6 Ra5 Ne2 Nd5 e7 Nf4 e8B Nh3 Na3 Bf8 g7 Ng1 Rb1 a1Q Bf7 Qe8 Kb6 c5 d8Q c4 d7 c3 Qd6 c2 Nc3 Na6 Rb2 Nc7 Ne4+ Ke1 Bg5 c1R Bf4 Rc5 Rh3 Re5 Rd3 Re6 Be2 Re7 Bd1 Kf1 Ba4 Qe1 Bg3 Na8+ Kc6 Qe3 Q8c7 Qe2 Kc5 Qe1 d8Q Bd7 Nc2 Bc6 Nc3 Qe6 Ne4 Qe5+ Rd5 Ra7 b6 Ra5+ Kb4 Rc5 Rd3 Bb5 Ka5 Bc6+ Ka6 Re6 Qd5 Bd6 Ka7 Re7 Qa2 Qd5 Rd4 Bf4 Qdd6 Qe5 Qad5 Rh8 g8Q Bg5 Qf8 Rg8 Qa2 Bh4 Qad5 Rg5 Qh8 Rh5 Rd3 Rc3 Qa5 Rc5 Qd2 Bg5 Qe6 Qc3 Rd7 Qe5 Qed6
K1Rn3B/1p1B2q1/N2Pq1p1/1p3Q2/3QbpPB/1br4R/1k1r1QQ1/2n3Nr b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 g6 h4 a6 h5 Nh6 b5 Ng8 h6 Bg7 hxg7 axb5 Kf2 Kd7 d4 Kd6 a4 c5 e4 h5 e5+ Ke7 e6 Kf6 a5 h4 d6 h3 d5 Ke5 e7 f5 e8Q+ Be6 a6 h2 d7 c4 d6 f3 Ke3 c3 a7 c2 Nc3 f2 Ne4 Qh4 d8B Qf6 Nc5 Nd7 Qf7 Bc4 Na6 Nh6 g8Q Qg7 Bh4 Nc5 Qgf8 Bb3 g4 Rc8 a8Q Nd3 Bg2 f1R Bb2+ Rc3 Rc1 Rf2 Bc6 Rd2 Bd7 Rh7 Qf1 Rh8 Qc4 Nf7 Qa7 Nd8 Qf2 Rh5 Qc6 Rh6 Qcg2 f4+ Kf3 Kd5 Qf5+ Kc4 Ke4 Rh7 Nc5 Kb4 Na6+ Ka4 Ba1 Ka3 Qad4 Ka2 Rf1 c1Q Bb2 Ba4 Kd5 Qe1 Ba1 Qe8 Rc1 Kb3 Rc2 Nc1 Bb2 Rh3 Ba1 Qe6+ Kc5 Rc3+ Kb6 Ka3 Ka7 Bb3 Ka8 Rh6 Nh3 Rh7 Rf1 h1B Ng1 Rh5 Re1 Rh8 Re3 Rh6 Rh3 Rh7 Qh2 Be4 Qh1 Re3 Rc8 Rc3 Qhg2 Ka2 Bb2 Rh8 Ba3 Kb1 Bb4 Kb2 Qde3 Rh6 Be7 Qgf6 Rh4 Rc7 Bc3+ Kc2 Be5 Rc3 Qd4 Kb2 Rh5 Qff7 Bh8 Qg7 Rh2 Rh3 Bf6 Rg3 Rh5 Rh3 Rh7 Rh2 Rh3 Rh1 Bh4
Q3r1qq/1pr4n/bP2R3/N2K2N1/Ppp4B/rQB1B1p1/1Q1nb1BR/6k1 b - - 0 1 illegal: No proof kernel
3qqBr1/p2Br1N1/7K/PpP1pb1n/k1B5/3bR1Np/1qR5/2n1QNBQ b - - 0 1 legal: proof: e4 g5 b4 d5 g4 dxe4 h4 c5 bxc5 Na6 f4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Kf2 Kd7 a4 Kc6 c4 f5 d4 h5 d5+ Kd7 d6 Kc6 d7 e5 g7 b5 a5 f3 Kg3 f2 Kh4 f4 Nd2 f3 Qe1 e3 Rh2 e2 Ra3 Nf6 g8N Qe7 d8B Be6 g6 Bf5 Kg5 h4 g7 h3 Bb6 Qe8 Re3 Nbd7 Ba3 Nh5 Nf6 Rh7 g8Q Re7 Kh6 Qd8 Ne8 Rc8 Qd1 e1Q Ng7 Qe2 Qe1 Qe8 Qh7 Qd1 Bd3 f1Q Ne2 f2 Ng3 Qfe2 Ndf1 Qb2 Be2 Nf8 Qg6+ Ne6 Qg4 Nef4 Qf3+ Qd5 Qh1 Nd3 Rg2 Qdd8 Bb4 Nc1 Ba3 Kb7 c6+ Ka6 c7 Kb7 Bd6 Kc6 Bd4 Rb8 c5 Kd5 c8B Ra8 Bd1 Kc4 Bd7 Rc8 Bc2 Rb8 Bd3+ Kb3 Bc4+ Ka4 Nh2 f1B Rc2 Be2 Nhf1 Bed3 Ne6 Rg7 Bf8 Rg8 Ng7 Rb7 Rf3 Rc7 Bg1 Rb7 Re3 Rc7 Bc8 Re7 Bd7
n5B1/p1bK3Q/r1pp1q2/3PRnN1/Q3R1NP/p1r1Bk2/2b4R/B1B1q2q b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 Na6 a4 bxa4 Ke2 Nb4 Ra3 Nxc2 Ra2 Ne1 Ra1 Nc2 Kf3 Kf7 Ke4 Kf6 Kd5 Kg5 h4+ Kf4 b4 g5 h6 e5 b5 g4 f6 d6 Kc6 e4 d4+ e3 b6 g3 h7 a3 f7 g2 b7 Bg4 b8Q Bh3 Nd2 e2 Ndf3+ Kg4 Ng5 Bg7 f8B Ne3 f4 Nc4 f5 Qe7 f6 Nh6 f7 Qd8 N1f3 g1Q Rh2 e1Q Qa4 Qh1 Qb7 Nb6 Bc4 Nf5 Ba2 Be5 Bh6 Rc8 f8R Qf6 Re8 Na8 Kd7 Bf4 Re6 Bd2 Re5 Ba5 Bg8 Bf1 Rb1 Bd3 Rb4 Bc2 d5+ Kg3 Rf4 Rb8 Qb1 Rb6 Rfe4 c6 Rhe2 Rb3 Nh2 Bc7 Ng4 Rf3 Rh2 Rc3 Be6 Re8 h8B Rb8 Bg8 Rb5 Nf7 Ra5 Bhe3 Ra6 Ng5 Qhf1 Qb8 Qh3 Qe8 Qg2 Qh5 Qgh1 Qh7 Rd3 Qb4 Qf7+ Re7 Rb3 Bhb2 Qf6 Ba1 Rd3 R7e5 Rc3 Nh3 Kf3 Qc4 Qeg1 Qa4 Qe1 Ng5+
B1R5/p1N3Np/P3Bp2/3bnq2/1kB1nN2/2RQ2P1/pqrb2QK/1n1r3B b - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 e5 fxe5 b6 a4 Nf6 d4 cxd4 a5 Ke7 a6 Ng8 Bd2 Ke8 Ba5 bxa5 Kf2 Ke7 Kg3 d5 b4 d3 c4 f6 e4 d4 e6 Kd6 c5+ Kc6 b5+ Kc7 e7 d2 e8B d3 e5 a4 c6 Kb6 c7 Kc5 b6 a3 e6 a2 g6 Qd7 g7 Qd4 b7 Kc4 e7 Qe3+ Kh2 Qf3 g3 Nc6 b8Q Be6 c8B Ne5 Qb7 Bd5 Bc6 Qf5 e8N Ne7 g8B Bh6 Bce6 Rd8 Ne2 Nc8 Bg2 Nd6 Nf4 Ne4 Na3+ Kc5 Qf1 d1Q Ng7 d2 Nb5 Qc2 Qd3 d1N Rc1 Ndc3 Nc7 Nb1 Rhd1 Qc3 Bh1 Bg5 Qa8 Kb4 Rd2 Qa3 Rc3 Qb2 Rdc2 Rc8 Bgf7 Rhd8 Bb7 Bc6 Bc4 Rd4 Bfe6 Bd5 Qf1 Rd1 Qg2 Rf8 Qd8 Re8 Qd7 Rc8 Ba8 Bh6 Ne2 Bd2 Nf4 Bc6 Qd4 Bd5 Qd3 Re8 Bf7 Nc6 Bb5 Nf2 Ra3 Re2 Be6 Ne5 Nce8 Be3 Rc8 Rc2 Rac3 Ne4 Nc7 Bd2 Bc4
RQ6/b5K1/1n2R3/N5nP/rBppb1bB/pN2p2k/BN1P3q/Q1b2Nr1 b - - 0 1 illegal: No proof kernel
nn2nQ2/2r2n2/3pPR1p/1K1Q1b2/2P3B1/1RbqpN2/k3r1pB/1QQ3NR b - - 0 1 illegal: No possible last move
1B4Rr/2bq1p2/p1kr4/ppn1nN2/2B1Q1B1/3n1PBR/RQn2PK1/3bN3 b - - 0 1 illegal: No proof kernel
1RkBQ1R1/1nb1p1P1/Pn1n2rN/p6p/7N/QbNBn3/2qrpK2/N1R5 b - - 0 1 illegal: No possible last move, all moves rejected
k1B1R3/nq1P2n1/3QN2K/1n1prpBQ/2N5/b3bp1p/4nP2/N2N1QRr b - - 0 1 illegal: No proof kernel
7Q/2pBb1p1/P3p3/krqN2Q1/1nQr1RB1/BPN2pBK/3n1b1R/3b2b1 b - - 0 1 illegal: No proof kernel
1r2rQnR/1P1N3B/bp2pP1B/4kN1p/3b2R1/bQB5/q1bK1nNp/4N3 b - - 0 1 illegal: No proof kernel
R1n5/1PN1n1pK/2k1Rb2/1r3NpB/1nB2PrB/2q1Qp1B/1Q2pQ2/4n2b b - - 0 1 illegal: No proof kernel
7r/Qpbb1Q2/1q1npBB1/3P2nR/Np1Q3N/1R6/1n4Pp/Br2nKBk b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 a4 Kd6 d4 h5 f6 c5 a5 e6 a6 h3 f5 h4 a7 c4 f7 h2 f6 c3 Bd3 h3 Ba6 c2 Bb2 c1N Qd3 Nc6 Ra3 Nge7 Nc3 Bd7 Na4 Na5 Rb3 Nc4 Nf3 Nf5 Kf1 Qb6 Ba1 Nb2 Nh4 Bg7 Qe3 Ncd3 Qg1 Rad8 a8Q Ne1 Bd3 Bh6 Bb1 Bf4 Qa7 Rc8 Be4 Rc1 Qf2 Rb1 f8B+ Ne7 Bg7 Nc8 f7 Be5 Bf6 Bg3 Rg1 h1N Bg6 Bh2 Qf5 Nf2 Rh1 Ne4 Qg4 Ng5 f8Q+ Kc7 d6+ Kc6 Qe8 Kd5 Qf7 Bf4 Bh5 Ke4 Qd1 Bg3 d5 Kf4 Bg6 Bh2 Qd2+ Kg4 Bd4 Bf4 Be3 Kg3 Qd4 Be5 Rg1 Kh2 Bf2 Bc6 d7 Bc7 d8B Bd7 Bf6 Nd6 Ke2 Nc2 Rc1 Ne1 Bg1+ Kh1 Kf1 h2 Rcc3 Nh3 Rf3 Ng5 Rf5 Ngf3 Rh5 Ng5 Bf2 Bb8 Be3 Bc7 Bg1
2Q1bR1N/npR2R2/b2p4/1PrnBQbK/4Bp1Q/1P1k1r1N/3p2Rq/2b5 b - - 0 1 illegal: No possible last move
nNk2B1R/pn3B2/P3Q1r1/2b1r1B1/R2Pq1pp/Np3N1B/5rQr/2K3b1 b - - 0 1 legal: proof: g4 c5 e4 d5 b4 dxe4 bxc5 g5 h4 Bf5 h5 Bg6 hxg6 f5 Bg2 fxg4 Bh3 Qd6 Bf1 Qd8 a4 Kd7 f4 e5 c4 h5 d4 b5 Kd2 b4 f5 g3 a5 g4 f6 g2 a6 b3 g7 e3+ Ke2 e4 f7 Nh6 g8B Qe7 c6+ Kc8 c7 Nd7 c5 Nb6 Nf3 g1B Bh3 Nf5 Qd2 Nd6 Kd1 Nb7 Qg2 e2+ Kd2 e1R Ra4 Qe6 Na3 Rf1 Rh2 Bd6 f8B Rf2+ Kd1 e3 Bf7 e2+ Kd2 Kd7 c8N Qe4 c6+ Kc7 Ne7 Bc5 Rh1 Rg8 Rh2 Rg6 Rh1 Kd8 c7+ Kd7 Nc6 Kc8 Nb8 e1R+ Kc3 Ree2 Bd2 Re1 Kb2 Ree2 Kc1 h4 Bg5 Bh2 Re1 Bg1 Qf1 Rh2 Qg2 Rf2 Re3 Qc6 Re5 Qe4 Re6 Rg8 Rh6 Rg6 Nd7 Rb8 Rh8 Na8 Bf4 Be7 Ra5 Nd6 Bd5 Rb5 Nb8 Nb7 Bf7 Re5 Ra4 Bd6 Bg5 Be7 Nc6 Kd7 c8Q+ Kd6 Qe8 Kc7 Nb8 Bc5 Qe7+ Kc8 Qe6+
5nRb/pp3pB1/2QrP1rP/1Qqn3B/b6N/p2b2BR/1bQk4/1B2N2K b - - 0 1 illegal: No proof kernel
2kqqRnQ/Q3Prn1/3RpQ2/n2BppBp/4rP2/2RQr3/6NK/b5N1 b - - 0 1 illegal: No proof kernel
n1Bnrq2/1r3pBr/3k3N/2Qpq3/R2Pp2K/1N1RB1P1/3Q1NpB/n4b2 b - - 0 1 illegal: No proof kernel
bn6/1R2BKPB/N1RNQ2p/2q1q3/4k2B/rnpp3Q/2nP1p2/2B1Nr1r b - - 0 1 legal: proof: b4 g5 f4 e5 c4 exf4 h4 gxh4 a4 b5 cxb5 Bc5 a5 Bb6 axb6 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 Kf5 Kd5 g4 a5 e4+ Kd4 g5 h6 e5 d5+ e6 c4 b7 c3 g6 f6 b6 f3 g7 h3 Kg6 h2 b5 f5 e7 a4 e8Q a3 Qe6 f4 Kf7 f2 Nf3+ Kc5 Bd3 f1Q Nd4 f3 Nf5 a2 Na3 d4 Nc2 Ne7 Ne1 Qd5 Rg1 h1R Rb1 a1N Rg6 f2 Qg4 Ra3 Qh3 Qe2 Be4 d3 Rb2 Nbc6 b8B Bb7 Bg3 Nd4 Bh4 Ba8 b7 Ndb3 b8B Re8 b6 Nc2 b7 Nc6 Bd6+ Kc4 Bde7 Nb8 Bf3 Qe5 Be4 Na6 b8N Rf1 Nd7 Nb8 Nc5 Rh1 Na6 Rf1 Ne3+ Kd4 Rf6 Qc6 Bh7 Qcc5 Nf5+ Ke4 Rg6 Na5 Rb7 Nb3 Qd7 Rh1 Rc6 Rf1 Beg5 Re6 Be7 Rg6 Qd6 Rgg1 Qe6 Rh1 Nd6+
2N1R3/p5rQ/P1QK2P1/1r1b3N/qBp1bp2/3q2pN/R2B1nrk/NBb5 b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 Bg2 e5 dxe5 Nc6 Bf1 Nd4 Bh3 Ne6 Bg2 hxg4 Bf1 g3 Be3 g4 Bc1 Ng5 fxg5 Rh6 Qa4 Rh4 Qd1 Rh8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 c5 a4 f6 b4 g2 h4 d6 e4+ Kg6 a5 Kh5 g6 c3 e6 c4 e7 c2 e8N f5 b5 f4 a6 Qg5+ e5 Qh6 e6 Rh7 b6 Rb8 e7 Rg7 b7 Bf5 Nh3 g1R Bd2 c1Q Na3 Rg2 Qf3 Qc2 Ra2 Qa4 Bd3 Be4+ Ke6 d5 Kd6 d4 Bb1 d3 Re1 Nf6 Nc2 Qg5 Na1 Qf5 Re3 Bd5 Qe4 g3 Qe6 Kg4 h5 Qc2 h6 Qa4 h7 Kh4 h8B Ng4 Nf6 Nf2 Nh5 Be4 Bb4 d2 Qc8 d1B Qc6 Bdf3 Bd2 Rg8 Bhc3 Rg7 Bb4 Bd5 Re6 Qd3 Re5 Bfe4 Re6 Re8 b8Q Rc8 Qbc7 Rb8 Q7d7 Rb5 Qdc7 Rg8 Q7b7 Bg7 e8N Bb2 Qh7 Rg7 Nef6 Bc1 Nd7 Kg4 Re8 Kh4 Nb6 Kg4 Ng1 Kh4 Nc8 Kg4 Nf3 Kh3 Ng1+ Kh2 Nh3
2q2r2/b1QQn2R/1p1KN1Q1/P2n1R1B/p3q1r1/Pp6/kB1p4/1QRqN2n b - - 0 1 illegal: No proof kernel
1R6/Bn1Qq2R/krpQ3P/bQn1Q1p1/N3q2N/4qBP1/r4p1p/n5RK b - - 0 1 illegal: No proof kernel
3R1b1N/3pRqPK/8/1p1rr3/1qQr3k/BPR1pR1p/1N3NqQ/1n1B3b b - - 0 1 legal: proof: e4 b5 h4 f5 a4 g5 a5 gxh4 Bc4 c6 Bf1 Na6 d3 Nc7 exf5 c5 d4 cxd4 Be3 Nd5 Bc1 Nb6 axb6 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kf7 Kf3 Kf6 Kf4 h5 g4 a5 c4 e6 c5 h3 c6 a4 c7 h2 g5+ Ke7 b7 d3 b8R h4 f6+ Kf7 b3 Kg6 f7 d2 Ba3 Ra6 Qh5+ Kg7 g6 Kf6 g7 d1R Be2 Ne7 Nh3 Rad6 Nc3 R1d5 Rac1 Qe8 Nd1 Bb7 Re1 h1Q c8Q Qg2 Nb2 Rg8 f3 e5+ Ke4 Ba8 Nf2 h3 Bd1 Bb7 Qc4 Rh8 Qg4 Rh5 Qf4+ Rf5 Qh2 Kg5 Re2 Kh4 Rc3 Ba8 Rd8 Bc6 Ke3+ e4 f4 Rfe5 f5 Rd4 Kf4 R6d5 f6 Ba8 Bb4 a3 Ree3 a2 Ba3 a1Q Re2 Nc8 Re1 Nd6 Re2 Be7 f8R Qf7 Ree3 Bb7 Rf3 Qa2 Rfe8 Bf8 Re7 Ba8 Bc5 Qa5 Ba3 Qg8 f7 Qb4 Qe2 Nc4 Qf1 Re6 Qd3 Nd2 Qc4 Rdd6 Kf5 e3 Rg3 Ree4 Rf3 R6d5+ Kf6 Qf1 Kg6 Ree5 Kh6 Nb1 Ree8 Bd6 f8N Qf7 Kh7 Qg2 Re7 Bc6 Ne6 Bb7 Nf4 Bc5 Re6 Bf8 Re7 Ba8 Ng6+ Kg5 Qc7 Qg4 Nf4 Rd6 Rg3 Kh4 Qc4 Bh1 Rf3 R6d5 Ng6+ Kh5 Rc8 Qg2 Nh8 Kh4 Rd8
3R4/2BKQ3/R3p3/r2Qqp1P/BpN1rN2/4prqn/kPn3N1/b1N1Rq2 b - - 0 1 illegal: No proof kernel
NB1b4/P1RR2n1/3pn1BN/Q2q2pR/2p2Rqq/1b1P1Q1r/5pQk/2Kb4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 b3 exf4 Nc3 b4 Nb1 Ra7 Nh3 Rb7 Ng1 Rb5 cxb5 a4 Bb2 axb3 Ba3 Nf6 Bc1 Ng8 a4 Ke7 e4 Ke6 h4 Ke5 h6 g5 a5 c5 h5 f5 h7 f3 b6 Kf4 a6 Kg3 b7 f4 a7 c4 h6 b2 e5 b3 e6 Qf6 e7 Qd6 e8Q Qe5+ Ne2+ Kg4 Qd8 Qe8 Rh5 Nf6 Na3 b1B Qa5 b2 Nb5 Qe4 Nc7 Ne8 Na8 Na6 b8Q Nc5 Qbb3 Qd5 Ng3 Be7 Nf5 Ng7 Bd3 Ba2 Qe2 b1Q Kd1 Bd8 Qf1 f2 Bc2 Re8 h8R f3 h7 Re3 Nh6+ Kg3 Bg6 Qbf5 Rf8 Qg4 h8R Nce6 Rh7 Qh4 Qbd3 Kh2 Rf4 Bb7 Ba3 Bb3+ Kc1 Bc6 Ra2 Bca4 Bd6 Bd1 Qe4 Bab3 Bb8 d6 Rb2 Ba4 Rb7 Bab3 Rd7 Rd3 Qfe1 f1Q Qf2+ Qg2 Qf1 f2 Qf3 Re3 d3 Qg4 Rc7 Ne8 Rhd7 N8g7 Q3e2 Rg3 Qf3 Rh3 Q1g2+
Br3R2/3P3N/KRpN1q1B/5p2/n2B2Q1/B3rq1p/r1Pp3b/Q1Qb2kq b - - 0 1 illegal: No proof kernel
qk2K3/3B2N1/ppBpn2p/R3NR2/3q3B/rr1P1r2/P3b1QR/1q1RQ1n1 b - - 1 2 legal: proof: h4 c5 b4 g5 bxc5 e5 f4 exf4 g3 Bh6 Bg2 g4 Bf1 Bg5 hxg5 fxg3 c4 f5 e4 a6 Ke2 b6 Ke3 h6 Kf4 g2 Ke5 g3 Kd6 f4 d3 f3 g6 f2 e5 Qf6+ e6 Kd8 g7 Qg6 c6 Ra7 c5 Qg4 Ne2 g1R Qe1 g2 Bg5+ Nf6 Nd2 Qb4 Nd4 Rf8 g8Q Qb1 Rh2 Rc7 Bh4 Bb7 e7+ Kc8 e8B Nd5 Ne6 Nc3 Ke7 Rf3 Qg4 Ne2 Nc4 Ba8 Ne5 d6+ Nd7 Rh1 Ng7 g1Q Bh3 f1Q Qg2 Qd4 Bf5 Qfg1 Kf8 Qd5 Ne5+ Nd7+ Ke7 Qe3 Be4 Nf8+ Bd7+ Kb8 Ke8 Qdd4 Bd5 Ng1 Be4 Qc2 Rd1 Qb1 Bd5 Ne6 Be4 Rb7 Bd5 Qee4 c7+ Ka7 c8R Rc7 Rd8 Rc8 B5c6 Kb8 Ke7 Qed5 Rf8 Bb7 Rf5 Rc7 Ba4 Bc8 Bb5 Qa8 Ke8 Bb7 Ba4 Bd5 c6 Bb3 Rc1 Bd1 Rc5 Be2 Ra5 Nh3 Qd2 Rc1 Qe1 Rc3 Bb5 Rb3 Ba4 Rb7 Bb5 Ng1 c7+ Ka7+ c8R Rc7 Ba4 Rcc3 Bac6 Ra3 Kf7 Rcb3 Rf8 Qb7 Ke8 Kb8 R8f6 Qa7 Rg6 Qa8 Rg4 Qda1 Rc4 Qab2 Rc1 Qd4 Rd1
Q2Q2n1/bq1pBrp1/p2k2rN/n2P4/2pR1q2/2Q3nR/P4B2/KN1RRr2 b - - 1 2 legal: proof: f4 f5 e4 b5 exf5 h5 g4 Bb7 c4 bxc4 g5 Bd5 f6 Bf3 Bh3 Kf7 Bf5 Bd5 Bg4 hxg4 g6+ Ke6 f5+ Kd6 Qa4 Bf7 gxf7 Kc5 Qd1 Kc6 h4 e5 d4 e4 Kd2 g3 Kc2 a6 b4 e3 Kb2 e2 b5+ Kd6 b6 e1Q h5 c5 d5 g2 b7 Qb4+ Qb3 Ke5 h6 Ne7 h7 Qc8 Nh3 g1R Nf2 Qc6 Ng4+ Kd6 Be3 Nc8 Bf2 Rf1 Nh6 Ne7 Rg1 Qba4 Qc3 Ng8 Rg4 Qc7 Rd4 Nc6 b8R Na5 Re8 Be7 f8B Qb7+ Qb3 Rc8 f7 Rc6 f6 Rb6 Na3 Qb4 Rad1 c3+ Ka1 c2 Qc3 c1N Nb1 Ne2 Re1 Kc7 Red1 Bd6 Re5 Ng3 Ree1 c4 Be7 Bc5 f8Q Qb5 f7 Rg6 Bg5 Ba7 Qd8+ Kd6 f8R Qb4 Rf3 Qa3 Rfe3 Qc1 Red3 Qf4 Rde3 Nh1 Rh3 Ng3 Bf6 Ne7 Bg5 Rf8 h8Q Ng8 Qa8 Rf7 Bh4 Nf6 Qhd8 Ng8 Be7+
1n2Bn2/RK2Q2N/3Qp1rR/q1p1P3/2kn4/n1Qr3P/1p1nRp1b/B2R3N b - - 0 1 illegal: No possible last move, all moves rejected
3qN1B1/r5rp/4n1P1/2R2b1b/ppKb2N1/b2Bb1BP/6Np/QQR2k1N b - - 0 1 illegal: No possible last move
2q2QN1/6pB/R1Nnr2n/3nR2p/n6b/rP1KBQ1p/6pP/B1NB2kr b - - 0 1 illegal: Other
Rkb5/1p2r2q/B2R1p1n/b2rr1p1/2B2bPR/3QRP1Q/2p1KbN1/N4B2 b - - 0 2 illegal: No proof kernel
1RrR4/1Rp4B/QBP3rR/Np4pK/QPqbrN2/1Qk2n2/1p4b1/rb6 b - - 1 2 legal: proof: g4 a5 d4 g5 b4 f5 Qd3 a4 Qb3 Nc6 h4 Ne5 h5 Ng6 hxg6 e5 dxe5 fxg4 Rh4 axb3 Rh3 Bd6 Rh1 Bf8 a4 Ke7 f4 Ke6 Kf2 Kd5 Kg3 Kd4 e4 h5 c4 d5 g7 b2 e6 b6 e5 Ra7 c5 Bd6 f5 Bb7 a5 Bc8 e7 Ra6 e8Q Ne7 g8Q Qd7 f6 Qe6 f7 Ng6 f8R Nh4 Nd2 Kc3 Bd3 d4 Nc4 Nf3 Bh7 d3 Nh3 d2 Nf4 d1R Qa4 b5 Be3 Rd4 Rd8 Re4 Rh3 Qf7 e6 Be5 e7 Rg6 e8R Bd4 a6 Bf5 Na5 Qc4 Qe6 Rf8 a7 Rh8 a8Q h4+ Kf2 Rhg8 c6 g3+ Kg2 Rh8 Qa6 Rhg8 Rb8 Rh8 Rb7 Rhg8 Reb8 Rc8 Rh2 h3+ Kh1 Re5 Rd1 Bb1 Rdd2 Re4 Qf7 Bh8 Rd8 Be5 Bb6 Bd4 Re2 h2 Kg2 h1B+ Kh3 g2 Kg4 g1R+ Kh5 Bg2 Rd2 Be5 R2d6 Bd4 Rf6 Ba2 Re6 Ra1 Qg8 Bb1 Qf7 Rg8 Rh6 Rg6 Qd5 Qe2 Qda2 Qc4 Q2b3+
1KN1RQ1r/3R2p1/2b5/N5PB/p4QrN/4bprk/pNq1P2B/n3r1bB b - - 0 1 illegal: No proof kernel
6QQ/2n1n2R/Brpk2p1/2b1B2n/1q2pPP1/2pB2R1/Qr1n1N1K/BN1r4 b - - 0 1 illegal: No extended proof kernel
Q1rB1r1r/p5P1/bN1Qp1bk/p1N1q1N1/4Pp2/K3R3/1n1b1b1Q/3RN2B b - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 b6 f4 gxf4 h4 Kd7 a4 Qe8 g5 Qd8 a5 bxa5 h5 Nc6 Qb3 Ne5 Qd1 Ng6 hxg6 Ke8 b4 c5 d4 h5 Kd2 f5 Kc2 f3 Kb2 c4 e4 e6 b5 h4 d6 f2 b6 h3 b7 c3+ Ka3 c2 b8Q h2 d5 Bd7 g7 Kf7 g6+ Kf6 Nf3 Qe8 Ne1 Rh6 Nd2 Kg5 Bg2 Nf6 g8Q f1B g7 Nh5 Nc4+ Nf4 Nb6 Rh8 Rb1 Qe7 Rb3 Ba6 Re3 Qf6 Rf1 Be8 Bh1 Be7 Qd2 Bd8 d7 Qe5 d6 Bg6 Qd1 Be7 d8N Nd3 Nb7 Nb2 Nc5 Kh6 d7 Bh4 d8N Bf2 Qf8 Rg8 Qdd6 Rh8 Bd2 c1B Qbc7 Rc8 Nf7+ Kh7 Bc3 Bd2 Ng5+ Kh6 Qfd8 Rf8 Qb8 Qf4 Bf6 Qe5 Qa8 f4 Q8d7 Qf5 Bd8 Qe5 Qb5 Bc3 Qe2 Bd2 Bg2 h1R Bf3 Rh5 Bh1 Bh4 Qh2 Bf2 Rg1 Rh3 Ned3 Kh5 Rd1 Rh4 Nh7 Rh3 Nf6+ Kg5 Ne1 Rhh8 Nh7+ Kg4 Qg2+ Kh5 Ng5 Kh6 Qh2+
2rr2k1/1KQ2p1Q/3b4/r1pRr1pN/4qRQ1/1P2Nb1B/2Np2PB/1b1Qn3 b - - 0 1 illegal: No proof kernel
5R2/B3bqp1/N1Q1r3/rR1B3n/2n1rp2/2pB2PR/nr1pP1QR/2Nk1K2 b - - 0 1 illegal: No proof kernel
k1q4r/Qp2Bp1Q/P1q4p/n5NP/3n1b1q/KR3Q1N/1RB1p2R/4qrQ1 b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 a5 b4 axb4 f4 gxf4 e4 Bg7 e5 Kf8 d6 Bh6 d5 Kg7 e6 Bd7 exd7 Kf6 Nc3 Bg7 Nb1 Bf8 Kd2 Ke5 Kc2 c5 Kb2 h6 h4 c4 g4 e6 a4 b3 g5 f3 a5 c3+ Ka3 b2 h5 f2 g6 c2 g7 Be7 a6 Qc8 d8R Nc6 Qf3 Nd4 Nc3 b1Q Ra2 Bg5 d7 Kd6 Rh2 Kc7 d6+ Kb8 Ne4 e5 Bd3 f1Q Rb2 Qf2 Nh3 Bf4 Neg5 Ne7 g8Q e4 Qh7 e3 Bd2 c1Q Bc2 e2 Bb4 Qg3 Re8 Qh4 d8Q Qh1 d7 Nec6 Qb6 Na5 d8Q Qbe1 Re3 Rg8 Qe7 Rg6 Reb3 Rf6 Qee3 Rf5 Qg3 Qhc6 Be7 Rf6 Qc5 Rf5 Qd5 Ka7 Qg4 Rb8 Qdg2 Ka8 Q4f3 Q8c7 Qh1 Ne6 Qfg2 Bd6+ Ka2 Rh8 Qgg3 Qc8 Qhg1 Rf1 Qgf3 Bf4 Qc5 Nd4 Ka3 Qef2 Qb6 Qe1 Qa7+
1RN5/1B4nQ/1b3pNB/BNNrp1p1/Qq1RP1Pb/q3qp1K/6n1/q5k1 b - - 0 2 illegal: No proof kernel
2BB1nN1/2bB1p1N/1bQ1RP1K/2nk1B1p/3NbP2/3Qpp2/4b3/r4qqR b - - 0 1 illegal: No proof kernel
Q5Q1/N2Pq1pb/4k3/p1rn1pQq/Nn2r3/1R2p2n/BQR1PBn1/5K1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 Ra3 d5 Ra1 e5 axb5 e4 c3 Bd6 c4 Be5 fxe5 dxc4 d4 Kd7 h4 f5 b4 c5 h5 a5 h6 g3 b6 c3 b7 c2 h7 c4 e6+ Kd6 e7 g2 e8Q c3 d5 Qe7 b5 Be6 b6 Bd7 Ra3 Qf6 Qd2 Nh6 Nh3 g1N Rb3 Na6 b8Q+ Nc7 b7 Be6 Nf2 Nh3 Qg8 Ng4 Qg5 Qe7 Be3 c1N Bg2 c2 Kf1 Nd3 Nc3 Nb4 Na4 Ra6 Rg1 Rc6 Nh1 Rc5 Bf2 Bf7 Qa8 Bg6 b8N Ke5 d6 Ncd5 d7 c1Q+ Be1 Qf4+ Bf2 Qh2 Nc6+ Kd6 Qgb8+ Ke6 Na7 Re8 h8Q Bh7 Qf8 e3 Be4 Nhf4 Bb1 Qh5 Ba2 Ng2 Qbb7 Ngf6 Qbb8 Ndf4 Qb5 N6d5 Qg8+ Ke5 Qb6 Nh3 Qbb7 Nh4 Rg4 Ng2 Rc4 Kd6 Qf8 Ke6 Rc2 Rc4 Qb5 Rec8 Qd8 Re4 Qbb6+ Rc6 Qd4 Rc8 Qb2 Rc5 Qg8+
1rNKNQ1n/1QP1n2R/p1bb1Rkq/R2p4/1qNP4/1pq1qB1p/3B4/N7 b - - 0 1 legal: proof: f4 e5 b4 exf4 h4 g5 Ba3 gxh4 Bc1 b5 a3 c5 bxc5 b4 a4 a6 Ra3 Ra7 Ra2 Rb7 Ra1 Rb5 axb5 Be7 Na3 Bd6 Nb1 Bf8 Kf2 d5 Kf3 h5 g4 f5 d4 Kf7 c4 b3 e4 h3 g5 h2 g6+ Kf6 e5+ Kg5 e6 h4 e7 Rh7 e8N Qb6 g7 Nd7 c6 Bc5 Nd2 Ba3 c5 Kh5 Bg2 Rh6 Nc4 Nf8 Qf1 Qb8 b6 Ng6 b7 N8e7 g8R Bd7 Rf8 Nh8 Be3 Qd6 b8Q Rf6 Ra2 Kg6 Bd2 Bb4 Qb6 Qb8 Ra5 Ba3 Ke2 f3+ Ke3 Qd6 Qa7 f2 Nf3 Bb4 Ne1 Ba3 Nc2 f4+ Kf3 Re6 Kg4 f3 Na1 Qb8 Qe2 f1Q Rf7 Qg1 Qf2 Qe1 Rf1 h1Q Rh7 Qe2 Qa8 Qd3 Qa7 Qc3 Qb6 Rd6+ Kf4 Qg1 Ke5 h3 Qb5 Bg4 Qb6 Rd8+ Qc7 Bd7 Kd6 Qb5 Qb7 Rb8 Bh1 Qg5 Kc7 Qge3 Bg2 Bc8 Kd8 Bb4 c7 Bd7+ c8N Ba3 c6 Bd6 c7 Bc6 Ra2 Qbb4 Ra5 Qh6 Qe3 f2 Qf3 Qhe3 Re1 Qh6 Re4 Qhe3 Qf8 Qh6 Bf3 f1Q Be1 Qg1 Bd2 Qe1 Rf4 Qee3 Rf6+
2N2Q2/N1NQ4/1q1q1q1B/rrQ1N2K/1p1q1ppR/1P1n1k2/1pP3Rb/1Bn5 b - - 0 1 illegal: No proof kernel
5RR1/1pQB2pK/1b4p1/1P1bqNp1/5P1b/B1rnN1qR/k1r2bBQ/7R b - - 0 1 illegal: No proof kernel
4R1n1/3RBp2/1Q1r1r1N/1p1qrQ2/2bp2R1/2BPN1pr/1P5N/kq2nKN1 b - - 1 2 illegal: No extended proof kernel
n2bn3/pK1pR3/PRNr1BRQ/N2N1k2/qQ1nq3/1n6/B2Pp2p/2b4R b - - 0 2 legal: proof: e4 g5 c4 b5 g4 bxc4 f4 Na6 f5 Bb7 e5 Be4 e6 fxe6 h3 e5 f6 Bf5 Nc3 e4 gxf5 g4 Nb1 g3 Qf3 Rb8 Qd1 Rb3 Qc2 Rf3 Qa4 Rf4 Qd1 Rg4 hxg4 Qc8 Rh3 Qb8 Rh1 Qd8 Ke2 Kf7 b4 c5 a4 h5 a5 e5 g5 c3 g6+ Ke8 g7 Kf7 b5 g2 b6 e3 Kd3 h4 Kc4 c2 Kb5 c4 b7 e2 b8N e1Q Nc3 e4 Bb2 c1N Qg4 e3 Nc6 h3 Nf3 g1N Nd5 c3 Qb4 c2 Bc4 h2 Rb1 e2 Nfd4 Qh4 Ba2 Nf3 Nb3 Qa8 Bc3 Rh6 Bd4 Ne7 g8R Nc8 Rg6 Nb6 Rb2 Be7 Be5 Kf8 f7 Qe8 Bf6 Na8 Qc3 Bd8 Qb4+ Qe7 Rb1 Nc5 Rb2 Ne6 Ka6 Nfd4 Kb7 Nec7 a6 Ne8 Nba5 Qe4 Rb3 Qg4 Re3 Ncb3 Re5 c1B Re3 Qc5 Re7 Qb5+ Kc8 Rh3 Bg5 Nf6 Nc7 Qh4 Nb8 Qa4 Kb7 Ne8 Rb6 Kg7 f6+ Kg6 f8Q Qh5 f7+ Ne6 Bf6 Qd5+ Nbc6 Kf5 Qh6 Qe4 f8R Rd3 Rg8 Rd6 Rg6 Ned4 Nd5
2NBKBBQ/pnp5/8/NRrN1pnP/rR3P1r/N3Q3/3n1p1r/kbb5 b - - 0 1 illegal: No proof kernel
1B4n1/1r2r1N1/4bkrn/KPb1R2R/1Qpp4/1pBn2R1/1P1n1R1p/5BNQ b - - 0 1 illegal: No proof kernel
Br1R2N1/2Npp3/rk3p2/1R1rn1Rp/n2PP3/nKB2b2/2B2n1R/b1Q3Q1 b - - 1 2 legal: proof: b4 g5 g4 c5 f4 gxf4 h4 b5 h5 Qa5 g5 Qb6 a4 cxb4 axb5 Qg6 hxg6 Bb7 Ra2 Ba6 Ra1 Bc8 d4 Kd8 Kd2 Kc7 e4 a5 c4 h5 Kc2 a4 b6+ Kc6 b7 a3 c5 f3 g7 f6 g6 f2 Nf3 a2 Bd2 Ra3 Nc3 Nh6 g8B Ra6 g7 Ng4 Bd3 f1R Nh2 Rf5 Qc1 Nf2 Kb3 Rd5 Bc2 Kc7 c6 Kb6 c7 Nc6 Be1 Ne5 b8R+ Bb7 Rd8 Bc6 c8Q Bb5 Qb1 Be2 Nb5 Bf3 Be6 Rg8 Bc3 Rh8 g8R Bh6 Ng4 Bc1 Qc4 Bb2 Rg5 Rg8 Qg1 Re8 Rb1 Ba1 Bd3 Rg8 Nh6 Rf8 Kc2 Re8 Rh2 b3+ Kd2 b2 Kc2 Rf8 Kb3 Rh8 Bc2 Re8 Rf1 b1N Nc7 Na3 Ng8 Rf8 Rb1 Re8 Ra8 Rb8 Qcf1 Bb2 Qc1 a1N+ Kb4 Nb3 Bf7 Rda5 Bd5 Nc5 Bc6 Na4 Kb3 Ba1 Rb2 Rb7 Rd8 Rb8 Ba8 Rd5 Ka2+ Ka7 Rb3 Nb1 Rb5 Na3 Rc5 Kb6 Kb3 Nb2 Ra5 Na4 Rb5+
2b1BrQ1/4p1NR/b6b/1k2P1Nq/2qBnbb1/1p1NRp2/Bp2BP2/Q4K2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 b4 f5 h3 b5 Bg5 a5 Nf3 axb4 Bc1 g5 Ng1 f4 Bd2 Nc6 Be3 Ne5 Bc1 Nf7 h4 Ra6 Nd2 Rf6 Nb1 Rf5 gxf5 g4 Qd2 Bg7 Qd1 Ng5 hxg5 Bf8 e4 h5 a4 d5 c4 Kd7 f6 Kc6 e5 d3 c5 h4 a5 d4 f7 b3 g6 b4 a6 h3 a7 b2 a8Q+ Kb5 g7 g3 c6 h2 c7 g2 Nf3 Qd7 Be2 Qg4 Nbd2 Nf6 g8B Bh6 f8N Ne4 Ba2 b3 Ne6 Rf8 Ng7 Qe6 Ng5 Qc4 Ndf3 Ba6 Rg1 h1Q c8B Qh5 Rh1 g1B Kf1 d2 Ne1 Bh2 Nd3 Bg3 Qe1 d1B Be3 Bc2 Bcg4 Bc8 Qd1 f3 Be6 Bf4 Bf7 Bg4 Rc1 Bb1 Rc3 Bc2 Nc5 d3 Bd4 d2 Qa1 d1B Re3 Bd3 Bg6 B1c2 Rh3 Nf6 Rh2 Bdf5 Qd5 Bc8 Qg8 Ba6 Rh1 Bcf5 Nd3 Bfc8 Be8+ Bgd7 Ne1 Qh2 N5e6 Ne4 Ng2 Bhg5 Ne1 Qh7 Nd3 Qf5 Rh8 Bh6 Rh7 Qg4 Ng5 Qh5 Bg6 Bg4 Be8+
3B4/2R1Bb2/k3npQ1/p2p4/bRN1P1r1/NB2BK1b/npqP2p1/1N3Q1r b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 c5 Ba3 cxb4 Bc1 h5 gxh5 b5 a3 b3 Bg2 b2 Bf1 b4 Nh3 b3 Ng1 Bb4 axb4 Qe7 Ra4 Qf6 Ra1 Qd8 Kf2 a5 c4 d5 e4 Kd7 h4 Kc7 c5 Kb7 h6 g5 h5 g4 h7 g3+ Kf3 g2 b5 Ra7 b6 Bh3 c6+ Kc8 h6 Rc7 Ra4 Rd7 c7 Kb7 c8N Nf6 Ne2 Rg8 h8B Na6 h7 Ne8 Bf6 Qc7 h8Q Qc2 Nd4 Rg4 Qh5 Nb4 Qg6 Nc7 Nb5 Na2 Rb4 Ne6 Ncd6+ Ka6 Bd8 f6 b7 Rh7 b8B Rh6 Nc4 Rh7 Kf2 f3 Bf4 Rh6 Ke3 f2 N5a3 Rhh4 Bd3 f1B Kf3 Rh5 Be3 Be2+ Kf2 Rh7 Qf1 Bf3 Be2 Rh8 Bd1 Be2 Nd6 Bb5 Ndc4 Be8 Kf3 Bf7 Nc3 b1B Bb2 Nc1 Rh2 Ba2 Ncb1 Rh7 Bbd4 b2 Bc5 Bb3 Bce7 Ba4 Rh1 Na2 Rg1 Qc1 Bb3 Rh6 Qf2 Qc3 Rc1 Qc2 Qf1 Qd3 Rc3 Qc2 Qc1 Rhh4 Nd6 Rh5 Rc7 Rf5+ Ke2 Rf1 Ndc4 Rg1 Kf3 Rh1 Qf1
3R1Qn1/QRQ2Kp1/p3n1P1/1rn1pBp1/1q1P1N1b/5b2/p2BRrk1/3Q3N b - - 0 1 legal: proof: e4 b5 g4 d5 c4 f5 cxd5 h6 exf5 Nc6 a4 bxa4 g5 Qd6 g6 Nb8 Qh5 Qd8 Qg5 hxg5 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Kf4 d4+ Ke4 f4 c5 h4 e5 h5 a6 h6 a3 d6 a2 d7 Qe8 d8R Qe7 b5 Qa7 f6 Bd6 h7 Bh3 f7 Nh6 f8Q Nf5 b6 Qd7 b7 Bg4 Qe7 Bf3 Rh2 Rf8 h8Q Ng3 f5 Bc7 f6 Ba5 f7 Ne2 Bd2 Nf4 Bh3 Nc6 b8Q Qb7 Qec7 Ne6 Qa7 Rb8 Qh5 Ne7 Ne2 Ng8 Nf4 Qb2 Qg4 Rb5 Qg1 Qa3 Qd1 Bb4 Bc3 Ke3 Nd2 Ba5 Ne4 Qb4+ Kd5 c4+ Qcc5 Nh6 Be1 c3 Rb1 c2 Bf5 c1N Kd6 Nb3 Ng3 Ng8 Nh1 Bb6 Kd7 Ba5 Qcc7 Nbc5+ Kd6 Be4 Re2+ Kf3 Nf2 Kg3 Bd2 Bf3 N4d3 Nf6 Ke7 Kg2 Rb2 Rh8 f8Q Ng8+ Kf7 Rh1 Re4 Rf1 Nh1 Rf2 Re2 Qa3 Bc1 Be1 Bd2 Qb4 Nf4+ Kg1 Rb8 Qa4 Bg4 Rb4 Qb3 Rf1 Qd7 Bh4 Rd8 Rf2 Qd1+ Kh2 Bh3 Rb7 Rb6 Qb4 Qc7 Rb8 Bf5 Rb7 Rc6 Rb5 Rcd6 Ba8 Rb6 Bf3 Qc2 Kg1 Rb7 Kh2 Qb3 Kg1 Qd1+ Kh2 Nd3 Kg2 Nf4+
Q5b1/2pnR1K1/p5p1/Qqr1pPn1/2N1R2b/Q1Ppr3/4kBBB/NB1r4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f6 axb5 Kf7 Nh3 Ke7 Ng1 Ke8 g4 h5 e4 hxg4 e6 Ba3 e5 fxe5 Nc3 Bd6 Nb1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4+ Kc5 Kf5 d5 Kg6 a6 f4 g3 h4 d4 b4+ Kd5 b6 Ke4 b7 g2 e7 Bh3 e8B Bc8 c3 Nf6 b5 Bd6 b6 Nh7 h5 Qh4 h6 Qh3 Qa4 Qd7 Qa5 Qd8 Na3 Nc6 b8B Nb4 b7 Nf6 h7 Nbd5 Nc2 Qe7 Nf3 g1R+ Bg2 Kd3 Ra4 Qd7 Ba7 Be7 b8Q Qb5 Na1 Rd1 Nd2 Ne4 Nc4 Bh4 f5 Nb6 Bf4 Ng5 Bf7 Rg8 h8Q Ke2 Bh2 Be6 Qf8 d3 Qa3 Nd7 Bf2 Rab8 Rg1 Rb6 Rb4 Rc6 Rh1 Re8 Qf8 Re7 Qa8 Rc5 Bg8 Nf7 Kh7 g6 Kg7 Re8 Ne3 Rf8 Re4 Ng5 Bf7 Ba2 Bb3 Rc8 Bc2 Rh8 Bb1 Bc4 Rg4 Bg8 Nc4 Bg3 Rf4 Rh3 Rd4 Bh4 Re4+ Re3 Bhg1 Bg3 Rh7 Bh4 Bh2 Nb6 Kh8 Nd7 Re7 Qb6 Kg7 Qc6 Nb3 Qb5 Na1
Br1Qq2r/1p2P2N/4R1R1/PnB4K/n4pQ1/2QN1pp1/1pr1N1N1/5bbk b - - 0 1 illegal: No proof kernel
3B2Nb/QpP1P1kn/p2p4/2nR4/N1b1rq1p/3p3N/2r3NR/KBQ1B1b1 b - - 0 1 illegal: No proof kernel
q1N1BNNK/2R2p2/N4p2/r1q3p1/4P3/np3nP1/Q3pkQB/bRrb3R b - - 0 1 illegal: No proof kernel
2rB2bn/6N1/2qpR1QQ/R1bP3B/P3p1K1/k2p1Q1p/2brr1p1/3N1B1B b - - 0 1 illegal: No proof kernel
1Q4B1/5Q2/R1r1Nbpp/k4bP1/3RBN2/1pnKR1Q1/qPn1p1p1/2b2nQ1 b - - 1 2 illegal: No proof kernel
1q6/3B1p1R/1nb1bbn1/NP4QN/p1Np1r1n/PBBKB2p/2p5/1k1RQ3 b - - 0 1 legal: proof: d4 b5 c4 a5 cxb5 g5 f4 gxf4 g4 e5 h4 exd4 h5 Ra6 g5 Rg6 hxg6 Ba3 Bh3 Be7 Bf1 Bf8 Kd2 Ke7 b4 Ke6 e4 Ke5 b6 d5 b5 c5 a3 h5 b7 c4 g7 a4 g6 c3+ Kd3 f3 Kc2 h4 Qe1 f2 Bc4 f1B Ne2 Ne7 g8N Nd7 g7 Ng6 Rh3 Bg2 Ng3 Be7 Nd2 Bf6 Bb3 Nb6 Kd3 c2 Ne7 Be6 g8Q Qb8 Nc6+ Kf4 e5 Rh5 Qg7 Rf5 Nc4+ Kf3 Qh6 Rf4 Qg5 Bh1 Kd2 d3 N6a5 Bg2 Kc3 d2 Kd3 d1N Rh1 Ne3 Nh5 Nf5 Rb1 Qh8 b8B d4 Bd6 Qg8 Bb4 Qb8 Rh2 Bh1 Bc3 Bg2 B1b2 Bh1 Rd1 Bg2 Bc1 Bh1 Rg2 h3 Rg4 Nfh4 Rg1 Bd5 e6 Bg2 e7 Be6 Qee5 Kf2 e8B Bc6 Bd7 Kf3 Qh6 Nf8 Rg7 Nfg6 Qeg5 Kf2 Qh8 Kf3 Qe8 Kf2 Rd2+ Ke1 Rh7 Rf5 Rh2+ Kd1 Bf4 Bed5 Rd2+ Kc1 Qe2 Kb1 Be3 Bf3 Qe1+ Bd1 Re2 Rf1 Bc1 Rf4 Rd2 Bg4 Rd1 Be6 Be3+
n3bN2/B6K/qr1p2pR/3P2Np/QR4b1/1Bq3p1/Q1pRQ1Pb/1rkQ4 b - - 0 2 illegal: No possible last move, all moves rejected
3NBR1R/7Q/1ppq2p1/NRP2qBp/1b1r2Qr/1np1n1PR/K3Br2/7k b - - 1 2 illegal: No possible last move, all moves rejected
q1q5/2N1npp1/p1b4n/PbpBk2K/1Qp2Nr1/1RR4b/5BP1/R1B2R1Q b - - 1 2 illegal: No proof kernel
Q4k2/1pB2RpR/NP2Knp1/1Q1BNRrB/6P1/R3q3/1p2p3/r1n1qb1n b - - 0 2 illegal: No possible last move
2r1Q3/2p3N1/n1Np3Q/2p2R2/1Bnbp2p/1kP1RR1R/1q1qb1P1/Bb3B1K b - - 0 1 illegal: No proof kernel
2b3K1/4p3/RqNN1p1p/3nQ2N/1B1QB1np/QqnrP1p1/1P3bN1/2k2R2 b - - 0 1 illegal: Other
N1RnQ1q1/Kp2B3/2Npp2k/QR3r1p/2p1NQ1Q/bP1q2Pr/2B2r2/5b2 b - - 0 1 illegal: No proof kernel
3Q4/1Nk1ppp1/4qb2/3R1q1p/4NP1R/B1bp1RK1/2n1rRP1/qBQ1n2N b - - 0 2 illegal: Other
Qb4b1/1Rp1R3/2nq4/3pQ2n/K2N1pN1/pB2P3/NpPqN1R1/1r2Bk1b b - - 0 1 illegal: No proof kernel
Rn1n4/1k2p1K1/p3QrPp/1N3RB1/NBQ1p1nb/n3Pp1R/4q2r/1B2B3 b - - 0 1 illegal: No proof kernel
3BKn1r/kp4Q1/BnR3r1/1pppR2p/Q2Prr2/3N4/1Q3bPN/Q3q1N1 b - - 0 1 legal: proof: h4 g5 c4 gxh4 f4 e5 fxe5 d6 c5 Bd7 c6 Ke7 b4 h5 cxd7 f5 b5 d5 b6 axb6 Kf2 c5 Kf3 f4 a4 h3 e4 h2 d4 Nf6 a5 Ra6 e6 Kd6 e7 Kc7 e8Q Bg7 e5 Rh7 e6 Rh6 e7 Rh8 Qg6 Ng4 e8Q Nf6 Qd2 Rf8 Qb2 Ra8 a6 Rh8 a7 Na6 Nd2 Nb8 Ra6 Qe7 d8N Nbd7 Nf7 Nh7 Ne5 Nhf8 Nd3 Bf6 Qg7 Bh4 Be2 Rh6 Nf1 Rg6 Be3 Rc8 a8Q Bf2 Bd2 Qh4 Ba5 Kc6 Qe3 Re8 Qec1 Qe7 Qca1 Rb8 Bd1 Qe1 Be2 Re8 Qd8 Re4 Qdf6+ Kc7 Qc6+ Kb8 Qca4 Re8 Nh3 Rd8 Rg1 h1R Nh2 Nh7 Rf1 Rh8 Ng1 Nhf8 Bd1 Qd2 Re1 Qb4 Re5 Qe1 Ng4 Rh4 Nh2 Rhg4 Bb3 Re6 Bc4 Rgg6 Ra7 Re7 Ba6 b5 Bc7+ Kc8 Bd8 Nb6 Ra8+ Kd7 Qab3 Kc6 Qba4 Ree6 Bg5 Re8 Rd8 Re7 Rd6+ Kc7 Rf6 Kb8 Rc6 Ka7 Bf6 Re8 Bd8 Qb1 Ke2 f3+ Kd2 Bh4 Ke3 f2 Kf4 Qe1 Kf5 f1R+ Nf4 Rg5+ Kf6 Rf3 Rf5 Re4 Re5 Bf2 Ke7 Rg6 Nd3 Rff4 Ke8
4N2N/1b1pNB1k/2Bpn3/rnQ1PKp1/2r1R1r1/rpq1B3/1P4p1/1Q2RN2 b - - 0 1 legal: proof: g4 b5 f4 h5 d4 hxg4 d5 e5 fxe5 b4 a3 Bc5 d6 cxd6 Qd3 b3 Qd1 Bb4+ axb4 Qe7 Bg2 Qf6 Bf1 Qd8 Kf2 Kf8 Kg3 g5 c4 Kg7 e4 a5 h4 f5 e6 a4 e7 a3 e8N+ Kg6 b5 a2 e5 Ra6 c5 Rb6 h5+ Kh7 h6 Qe7 c6 Qd8 c7 Ba6 c8B Rc6 b6 Rc4 b7 Qa5 Rh4 Nf6 Nf3 Nd5 Nd4 Nf4 Nc6 Qc3+ Be3 Ne6 Ne7 Nc6 b8Q Bb7 Nd2 Ncd4 Qb1 Nb5 Qa7 Rf8 Qc5 Rf6 Kh2 g3+ Kh3 g2 Re4 f4 Kg4 f3 Be2 f2 Nf1 Rf3 Bd3 Rh3 Kf5 Rg3 Bc2 Rg4 Bd1 Rh4 Bh5 Rg4 Bf7 Qd4 Qc2 Qc3 Re1 a1R Qd1 Ra3 Qb1 Ba8 Bb7 Ra5 Bc6 Bb7 Nd2 f1R+ Bf2 Rh1 Nf1 Rhh4 Bg1 Rca4 Be3 Ra3 Nc7 Kh8 h7 Kg7 h8N Kh7 Rb4 Rc4 Ne8 Rhg4 Qa7 Rc5 Re4 Rc4 Qc5
q1br4/Q2r2Bp/R1N5/Np4r1/1R1r4/pP1p2BP/N1Q2pkn/1KQ2Q1n b - - 1 2 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 a5 Bg7 Qb3 Be5 Qd1 Bd4 e3 e6 d6 Qe7 d7+ Kf8 Bc4 Bc3 Bd5 Bd4 d3 Bb6 axb6 Qf6 d4 Kg7 Bb7 Kf8 d5 Qg5 d6 Qd8 Bd5 exd5 Kd2 c5 Kc2 Kg7 g4 Ba6 b7 Kg6 e4 Kg5 e5 Kh4 g5 f5 g6 f3 b3 f4 e6 c4 h3 Kg3 e7 c3 e8Q d4 g7 Nf6 g8Q+ Ng4 Bb2 d3+ Kc1 c2 Qef8 Nc6 b8Q Nd4 Ra4 Nf5 Qc4 Rg8 Ne2+ Kg2 Rb4 Ng3 Nec3 Rg5 Na3 Nh2 Qc5 Bb7 Nc4 a5 Qba7 a4 Qc6 Qc8 d8N a3 d7 Qb8 Rf1 Nh1 Na2 Ba6 Bg7 Bb7 Kd2 c1R Na5 Rc4 Qfc5 Re4 Kc1 Rd4 Kb1 Ba6 Qcc1 Qb7 Nf7 Rd8 Ne5 Qa8 Re1 Bc8 Q6c2+ f2 Re3 f3 Qe1 Kg3 Qed1 f1R Qe1+ Rf2 Qf1 Rf5 Re1 Rf7 Re2 Rg2 Re3 Rg8 d8B Rfd7 Bc7 Rgd8 Re2 f2 Re3+ Kh4 Rg3 Rg1 Rg6 Rg5 Ra6 Kg3 Nec6+ Kf3 Qfd1+ Kg2 Bg3 Nf3 Qde2 Nh2 Qef1+
2r4Q/3K1nr1/B1R1pp1N/1r1p4/BbB4k/2r1PPnp/p2Q1Q1N/3RQ1q1 b - - 1 2 legal: proof: d4 g5 a4 c5 f3 cxd4 Na3 b5 axb5 g4 Nb1 g3 Be3 Nf6 Kd2 Qb6 Bf2 gxf2 g3 Bb7 g4 Bd5 h3 Be6 g5 Bg4 hxg4 Ng8 Rh5 Qc7 Rh1 Qd8 Kd3 h5 Ke4 a5 Kf5 f6 b4 Kf7 c4 a4 e3 d6 b6 d3 b5 a3 g6+ Kg7 Ke6 Kh6 b7 Kg5 c5 a2 c6 d2 b6 h4 g7 h3 c7 Ra5 c8Q Rc5 Ne2 Na6 b8Q Rh4 b7 Rc3 Qd7 Qc8 Nd4 Qc5 Qe1 d1R Nd2 Rh6 Rc1 Qc7 Nf5 Nb4 Ba6 Nd3 Nf1 Rg6 Nh6 Kh4 g5 Ne5 Nh2 Rd5 Qa8 Ra5 b8Q Nf7 Qb2 Rb5 Qdd8 Qc4+ Kd7 Qf1 Rc2 Rc8 Rc6 Qg2 Qda5 Qg1 Qed2 f1R Qe1+ Qg3 Qbf2 Rg1 Qed2 Rc1 Rd1 Rc3 Qde1 Rd3 Qad2 Rc3 N6g4 Ngh6 g8B Rg7 g6 Nf5 Nh6 Kh5 Qb8 Qg1 Qa8 Ng3 Bh7 Rg8 g7 Kg5 Bc2 Kh4 Ba4 e6 Qb8 Rh8 g8B d5 Bh7 Bb4 Bd3 Rh7 Bc4 Rg7 Rc5 Rc6 Qh8 Rc8 Rc6
1Q1nr2B/1n1nBpq1/1k4B1/3r1N2/Q2R2pp/1b1N2Qp/1pRPnP2/B4K2 b - - 0 1 illegal: Other
RN1Kb3/NQp1rkn1/2Bp1B1r/1p6/1b2N2P/p2n3r/PprN2B1/2R1Q3 b - - 0 1 illegal: Other
1B3Q2/2nk1QRN/2npR3/2Pr2Qp/1p1bpQ1N/bK1P4/Bp3B1b/2r4b b - - 0 1 illegal: No possible last move, all moves rejected
1Q3Q1n/1n1Npp1N/3Rr3/2pQ1q2/2RnnB2/p1P1K2B/1krQP2p/5qB1 b - - 0 1 legal: proof: d4 g5 f4 gxf4 a4 b5 d5 bxa4 d6 c6 Kd2 Bh6 Ke1 Bg7 g4 Ba6 h3 Bd3 g5 Be5 Ra3 Bf5 Ra1 Bg4 hxg4 Bd4 Qd2 Bb6 Qd1 Bc7 dxc7 Qc8 Bd2 Qd8 Be3 Qc8 Bc1 Qd8 Kd2 a5 c8Q h5 b4 d5 c3 f3 g6 h4 g7 h3 b5 c5 b6 a3 g5 a4 b7 h2 g6 f2 Ra2 d4 Nh3 d3 Qe1 Nf6 Nf4 Nbd7 b8B Rh6 g8Q+ Nf8 g7 Ne4+ Ke3 d2 Bd6 d1N+ Kf3 Nb2 Nd3 Nc4 Be5 Na5 Qe6 Nb7 Be3 Qd5 B5f4 Qf5 Qd5 Re6 Bh3 f1Q+ Bf2 Rd8 Qd2 Rb8 Rb2 a2 Ne5 a1N Ke3 a3 Bg1 Nb3 Nd7 Nd4 Rb4 Kd8 Qh8 Kc8 Qh6 Ng6 Rc4 Nh8 g8Q+ Nd8 Qhh7 Rb2 Qh6 Rc2 Qg3 Nb7 Qf8+ Nd8 Qe5 Kb7 Qd5+ Ka6 Qgg8 Nb7 Qb8 Kb5 Qgf8 Ra6 Qe1 Qg4 Nd2 Rc6 Nf3 Qf5 Ng5 Ra6 Qd2 Re6 Bf2 Qg2 Rd1 Qf1 Bg1 Ka5 Nh7 Kb5 Rb4+ Ka5 Rb6 Ka4 Rc6 Ra2 Rd6 Rc2 Qe5 Kb3 Rb1+ Ka2 Rb4 Ka1 Rc4 Kb2 Qd5
1R2rbb1/1NB5/2p1p1k1/1NP1Qp2/Q1qBp3/P1r1ppK1/n1Q1R1Q1/2Rn4 b - - 0 1 illegal: Other
1qr5/nQ3p2/1pp1BR1N/4Q1p1/3BR1Qp/2Pp1K2/brb2RP1/1r3NQk b - - 1 2 illegal: No possible last move
1Rr2k2/3Qpn1b/7p/1q3p1P/pB1BNpB1/1rN1n1PQ/3Rp3/KQB1q3 b - - 0 1 legal: proof: b4 g5 e4 d5 c4 dxe4 a4 b5 cxb5 Bg7 f4 Bd4 a5 Bb6 axb6 gxf4 d4 f5 Kd2 c5 Kc3 a5 Kb2 e3 h4 c4 d5 a4 g3 h6 d6 e2 b7 Kf7 h5 Bd7 b6 Be6 b5 Ra5 d7 Nf6 Nh3 Nc6 b8B Ra7 b7 Qf8 d8Q Ra5 b6 Rd5 Bd6 Bd7 b8Q Nh7 b7 Rd3 Bb4 Nf6 Nc3 Ng4 Nf2 Nce5 Rb1 Ne3 Bh3 Be6 Qd7 Qe8 Nfe4 Kf8 Bg4 Bg8 Qf1 Nf7 Qh3 Bh7 Ka1 Rg8 Rd1 Rh8 Na2 c3 Rd2 c2 Nac3 Rg8 Qe5 Qb8 Qeb5 Qe5 Qb6 Qb5 b8B Rh8 Ba7 Rg8 Bca3 c1Q Qbb7 Qe1 Bc1 Rg6 Rbb2 Rc6 Bd4 Rc4 Qbd5 Rc8 Qa2 Ng5 Qb1 Nf7 Bd6 Qc5 Rb8 Qb5 Na2 Ra3 Bb4 Rb3 Nac3
1K1N2B1/rp1Q2p1/p2BRp2/1R1N1kN1/1P4Rb/1br1nR1Q/3P1p1p/1r4n1 b - - 0 1 illegal: No proof kernel
B2Bk3/2n5/p1N3Bp/1RN2Qp1/2p2pn1/P1r3nQ/4pPbR/q1nBK1R1 b - - 0 1 illegal: No proof kernel
4QK2/6Qk/n2pB2p/RQ2bRrq/2b2n2/b4B2/nN1PrBnP/1Nnr2B1 b - - 0 1 illegal: No proof kernel
2kQ1bnb/6Q1/KR1q1NRn/1p3n1R/p1B2B2/P1brb3/NP1Bbq2/2r3B1 b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 Bh3 hxg4 Bg2 Nd7 Bf1 Nb8 e4 Kd7 Ke2 a5 Kd3 g5 Kc4 c5 Kb5 f5 d4 c4 h4 f3 h5 f2 a3 a4 d6 g3 e5 g4 h6 f4 h7 f3 d5 g2 Rh6 c3 Rg6 c2 Nd2 g3 Ne4 Nc6 Qd4 Nce7 Bf4 c1B Ne2 g1B N2c3 g2 Na2 Be3 Re1 Nh6 Bc4 f1Q Qc3 Rg8 h8R f2 Rc1 Qc7 e6+ Kd8 d7 Qd6 Nf6 Qe1 Bd3 f1N Bc4 Qf2 Rc2 Kc7 d8B+ Kb8 Bb6 Ng3 Ba5 Ngf5 Qd4 Bh2 Bd2 g1B Rc3 Ra6 Rb3 Rc6 Ka5 Bd7 Rb6 Kc8 Qc3 Rg7 Qe5 Neg8 e7 Rc7 Qc3 Bb5 e8Q+ Qd8 d6 Rgd7 Qf7 Bd4 Qb4 Bc3 Qg7 Bg3 Bb3 Be2 Bc4 Ng4 Rh5 N4h6 Bfe3 Bge5 Bf4 Qg2 Kb5 Be3 Ka5 Qe7 Kb5 Rd8 Qc5 Qf2 d7+ Kb8 Qb4 Qe6 Qbe7 Qd6 Rc6 b6 Ka6 b5 Rb6+ Rb7 Rc6 Rc8 d8B Rd7 Bb6 Rcc7 Ba7+ Kc8 Ng4 Bf6 Rb6 Bfd4 Qh7 Bh8 Qhg7 Qb4 Nf6 Rd3 Bb8 Rc5 Bh2 Rc6 Bbf4 Qd6 Bg1 Be5 Bf7 Rc1 Bc4 Bc3 Qd8+
KBq1b3/Rr2q3/2rN1Q1p/2n1QB2/1qp1Q2P/2P2rRQ/1r1N1k1n/b1Rn4 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 Ra4 fxg4 Ra2 Ba6 Ra1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 h4 e5+ Kc4 g5 f4 c5 d4 g3 b4 e3 f5 g2 b6 a4 Kb5 Kd5 b7 Ke4 d5 h6 f6 c4 d6 g4 f7 e2 d7 e1Q Qd6 g3 Be2 a3 Qd2 a2 Nh3 g1N Ba3 g2 Rh2 Nf3 Qg5 g1R Qf5+ Ke3 Nf2 e4 Bd3 Rg7 Rh1 Nh2 Nd2 Na6 Kc6 Rb8 b5 Nc5 b6 Nf6 Qh3+ Rg3 Bc1 Bg7 f8R Nd5 Rg8 Nc3 Ba3 Qf8 d8Q Rf3 Qf6 Bd7+ Kc7 Qb1 Rc1 Nd1 Bb2 Bc6 Be5 Rh7 Bg3 Bd7 Bd6 Bh8 Rg3 Qb4 Be5 Bg7 Bd6 Be8 Be5 Rd8 b8Q Rd6 Qa8 Rc6+ Kb8 Bh8 b7 Rd7 Rab1 a1R Bd6 Ra5 Ra1 Rb5 Ra7 Re7 Qf7 Ba1 c3 Rec7 Qf6 Rh7 Bb1 Ke2 Bf4 e3 Nfe4 Qg8 Nd6 Kf2 Bf5 e2 Ra3 e1Q Ka7 Rh8 b8Q Rh7+ Qab7 Qge6 Ka8 Qc8 Ra7 Qe3 Qbe7 Qe2 Qee5 Rhb7 Qe4 Qe3 Be5 Qg5 Bf4 Qg7 Be5 Qe7 Nf7 Ra5 Bd6 Ra2 Bf4 Qcd7 Qbd6 Qde6 Qdd5 Qc8+ Bb8 Rc2 Qde5 Rb2 Nd6
4kNq1/KpB1pNBn/1P1rR1Bq/2rQP1r1/nb2qQ2/3bq3/2Q3BR/4n3 b - - 0 1 illegal: No proof kernel
q2rkb2/1Q3N2/rRn1B2p/BR3rp1/3b2rP/NB1Q2P1/2qQ2Q1/n3nb1K b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 Kf2 f5 h4 a5 b4 g5 e4 d5 c4 a4 c5 d3 g3 d2 Kg2 f3+ Kh2 a3 c6 d4 e5 h6 e6 d3 b6 a2 b5 f2 e7 f4 b7 f3 b6 Nf6 c7 Nfd7 Na3 Ne5 Rb1 a1B Rb5 Bh3 c8B Bd4 Be6 Nbc6 b8Q Ra6 Qd6 Qa8 b7 Bg2 Qe1 d1N Bd2 Ne3 Ba5 d2 Bfc4 f1R Bb3 d1Q Qd2 f2 Nf3 Nd3 Ne5 Ne1 Nf7 N3c2 Rb6 Na1 b8Q+ Nd8 Qc8 Qc2 Qb7 Nc6 Qd3 Rg1 Qb4 f1R Qbd2 Rf4 Rb5 Rgf1 Rg1 Bh3 Kh1 Rg4 Qg2 Rff4 Rf1 Re4 Rf6 Ref4 Qge4 Bg7 Rff5 Nb4 Rbc5 Nc6 Bc8 Bf1 Qg2 Rg8 Rfd5 Rf5 Rc4 Rh8 Rb4 Rg8 Rb6 Rh8 Ne5 Rh7 Rdb5 Bf8 Qdd2 Rg7 Qd3 Rg6 Nf7 Rd6 Qgd2 Nb4 Qbg2 Nc6 Bce6 Rd8 Bec4 Nb4 Bd5 Kd7 e8Q+ Kc8 Qee4 Kd7 Be6+ Ke8 Qb7 Nc6 Qdf2 Qc8 Qf4 Qa8 Qfd2
Q2b2nB/RN1qNB2/2bB2pk/b1Q3Nr/3rpKP1/2nN3R/1r1rP3/q5q1 b - - 0 1 illegal: No proof kernel
2bqN1b1/BB1NQq1r/NR1n1p2/R5np/1r5r/1rk1KPB1/2qN3P/Q1b5 b - - 0 1 illegal: No proof kernel
bQ1Bbb2/N3r1p1/k2pb1RQ/1R1P2PB/R1qN1Knq/Q3R3/2r3b1/5b1n b - - 0 1 illegal: No proof kernel
5nRN/qb1R2NB/2p4K/2B2r2/2P1rB2/1rQ1prQR/r3P1r1/1qkB2bn b - - 0 1 illegal: No proof kernel
n1nr1k2/1n1q3Q/4rpR1/1Np2BNK/2PN2rn/B1R1nP2/4Q2b/rR1R3b b - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 Ra4 gxh4 Ra5 Na6 Ra1 Nb8 Ke2 a5 b4 e5 c4 c5 g4 h5 d4 e3 Kf3 e2 d5 e1R d6 h3 b6 a4 b5 e4+ Kf4 h4 b7 h2 b6 a3 g5 a2 g6 e3 g7 h3 Ba3 e2 Kg3 f6 Kf3 Rh4 Bc1 Na6 b8Q Qd7 b7 Rg4 Qd4 Ne7 g8R Nc7 Qa7 Rb8 Nc3 Na8 Rb1 a1N Ba3 Nb3 Rc1 Na5 Rg6 Bh6 Qe5 Kf8 Qe3 Bf4 Nb5 Bg3 Rc3 Ra1 Rc2 e1R Ne2 Be5 Rg1 h1N Ned4 h2 Qe2 Ng3 Bh3 h1N Rc3 Ngf5 Rf1 Bh2 Rg1 Qe6 d7 Ne3 d8N Qd7 Nf7 Ng3 Ng5 Ngf5 Rf1 Qe8 Rg1 Bd7 Rf1 Rd8 b8R Nc8 Rh1 Be6 Qh7 Qd7 Rb6 Nb7 Rg1 Rg3+ Kf4 Nh4 Bf5 Bd5 Rh1 Rec1 Rd1 Bh1 f3 Rc2 Nc7 Rd2 Rbb1 Rb2 Ncb5 Rba2 Bc1 Ra6 Ba3 Re6 Rg1 Nd1 Re1 Rh3+ Kg4 Ne3+ Kh5 Rg3 Rec1 Rg4 Rd1
3Q2r1/bRqr2pk/1NQ1Nq1r/K2Rn1b1/6Pb/2QpN3/n1BPbBQ1/2r5 b - - 0 1 illegal: No proof kernel
b4rNq/N1pK1nn1/N1BB1R2/2P2Q1b/4p2n/r1BbR3/q3PN1Q/n3b1k1 b - - 0 1 illegal: No proof kernel
6K1/2Bp4/r2qp2r/B1k1Nnb1/Qb2b1Q1/5Bq1/R2PPr1R/rN1nQ1bB b - - 0 1 illegal: No proof kernel
q1q2nq1/3B3r/np2N1R1/1P2KB1k/1bpR2r1/Q1b3nN/N1PBp1bB/6Q1 b - - 0 1 illegal: No proof kernel
1B5N/2B1b2B/Qr2r2n/q2p1p2/p2K4/k3RPqN/Pn1NRnb1/1q2Qr1N b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 h5 Bg2 hxg4 Bh3 Rh5 Bf1 Rh8 Kd2 Ke7 Kd3 b5 e4 d5 c4 g5 h4 a5 f3 f6 c6 Kd6 h5 Kc5 e5 Kb4 e6 a4 c5 g3 e7 g2 e8N g4 h6 g3 h7 Nd7 c7 Be7 c6 Nb6 Bf4 Rb8 Nd6 Bh3 c8Q Nh6 c7 Nc4 Nf7 Re8 h8B Rb6 Nd2 Ka3 Rh2 b4 Qa6 b3 c8N b2 Bc7 b1R Qe1 Nb2+ Ke2 d3+ Ke3 Rd1 Ncd6 Rc1 N6e4 f5 Kd4 Qa8 Nf2 Rb1 Nh1 Rd1 Ne4 d2 Bhe5 Rc1 Rb1 d1N Nd2 Nf2 Bb5 Rd1 Nh8 Qd8 Ne2 g1Q Nf4 Bg2 Nh3 Qf1 Bc6 Qb5 Bb8 Qa5 Bec7 Qd6 Bd7 Rc1 Be6 Qf4+ Qe4 Rf1 Re1 Qg5 Nb3 Qc1 Bg8 Qb1 Bh7 Bg5 Qc8 Ree6 Qa6 Be7 Nd2 Nfg4 Ng1 Bh3 Ne2 g2 Nf4 g1Q+ Rf2 Qh2 Qe5 Bg2 Nh3 Qg3 Qee2 Re5 Qd1 Ree6 Re3+ Rb3 Rfe2 Nf2 Re4 Rb5 Qe1 Rbb6 R4e3+
2qB2q1/1rnpQ1RN/p3b2q/1Qr1k2p/Bb5R/3P1R1P/1brn1BK1/2NB4 b - - 0 1 illegal: No proof kernel
2n2b1Q/1kB1rQ1p/Q2p2n1/5r1b/B3q1qP/1KNQnr2/Bb1P2p1/4RR1N b - - 0 1 illegal: No proof kernel
1B1Nr3/p2kp1n1/4N2q/1p1B4/2bKPR2/qQrRr3/P1bnQ3/RN1Nbn2 b - - 0 1 illegal: No proof kernel
bB4QR/bkrQ2KB/bnQ3N1/1ppp1rq1/1PP2Rn1/2B5/1rb3B1/2bN4 b - - 0 1 illegal: No proof kernel
3rqRK1/1Q2rR1r/nbB1pb2/1pB3pN/1Pr1Pr2/4Bb1N/nBQR4/4k3 b - - 0 1 illegal: No proof kernel
qBR1kn2/Q4pb1/1Kp1r2r/2QN2bQ/p1R2PNr/1bP5/r1n1B3/Br1Q4 b - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 Ra4 gxh4 Ra5 Na6 Ra1 Nb8 Ke2 e5 Ke3 h5 g4 a5 b4 a4 d4 h3 f4 h4 b6 h2 b7 h3 b5 Rh7 g5 Qe7 g6 Qd7 g7 Ra6 b6 Qd5 Be2 Nh6 g8Q Nd7 b8B Qa8 b7 Re6 Qg5 Bg7 d5 Nf8 d6 c6 Nf3 Bd7 Re1 h1R Qh5 h2 Bb2 Rh8 Nc3 Ng4+ Kd2 e3+ Kd3 e4+ Kc4 Bc8 Kc5 Rhh6 Rc1 Rf1 Kb6 h1R Qdd5 Rf2 Ne5 Rh4 Qc5 Rg2 Nd5 Rf2 Ba6 e2 Ba1 Ne3 Ng4 Rg2 Red1 e1B Be2 Bec3 Rd2 Bcf6 Rd3 Bg5 d7+ Kd8 Rd4 Rf2 c3 Nc2 Rb1 e3 Rc4 Rfh2 Bd6 Rf2 b8Q Rg2 Qa7 Ba6 Bf3 e2 Bb8 e1R Be2 Reh1 Ka5 Rgh2 Rb7 Rb1 Rc7 Rf2 Rb4 Bc4 Kb6 Bb3 Rc4 Rg2 Nb4 Na3 Bd3 Ra2 Be2 Re3 Qd4 Ke7 d8Q+ Ke6 Qc5 Nc2 Qd1 Re5 Nd5 Re3 Rb7 Re5 Bc7 Kd7 Bb8+ Ke8 Rc7 Ree6 Rc8+
k6K/1b3pnQ/r1Q1q2p/3rbb2/1BBQ1R2/1p3PrP/1nN5/Nb2RQNb b - - 0 1 illegal: No proof kernel
Q4NRb/2R1pkBb/R4n1q/r7/R1pp3Q/KbP1P2B/5nnb/N3Q1rr b - - 0 1 illegal: No proof kernel
RB4N1/K3QN2/Q2pnR2/pq1Pr2p/P1Q1qN2/1bb2Q2/1kbb3n/qB1r4 b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 c5 bxc5 g5 Qg4 gxh4 Qf3 Na6 Qd1 Nb8 Ke2 Kf7 Ke3 Ke6 Kd4 a5 f4 h5 c4 b5 g4 e3 a4 e2 g5 e1Q g6 h3 c6 h2 Kc5 b4 d4 b3 g7 b2 c7 Qe4 Kb6 Qe8 c5 Kd5 f5 e5 c6 Nf6 g8N Bb4 Qf3 Bc3 Ne2 Kc4 Nf4+ Kb3 Rg1 h1Q Bd3 Na6 Na3 b1B Nc4 Bc2 Nd6 Ng4 f6 Nh2 f7 Nc5 f8Q Ne6 Nf7 d6 Qe7 Rb8+ Ka7 Rb4 Be3 Kb2 Rg4 Qd7 Ra3 Qa1 d5 Bb3 Bc5 Rd4 Bb1 Rd1 Rg6 Ba6 Rf6 Bd3 Bf2 Qe8 c8Q Bdc2 c7 Qb5 Qa6 Rh6 c8Q Rg6 Bc5 Rg5 Bg1 Bd2 Qe3 Qh7 Qcc6 e4 Ka8 Re5 Qf3 e3 Qcc8 e2 Ba7 Qe4 Qc5 Bc4 Rc3 e1B Qb4+ B4b3 Rc8 Bc3 Qc4 Qc5 Kb7 Bed2 Ra8 Qc6+ Kb8 Qe8+ Kb7 Qd7+ Kb6 Qe8 Bb8 Qb5+ Ka7
K2R2Q1/2pN2Rq/2P1r2R/B1Rb4/Bb1n4/pQ1nBpqq/P1b1N1k1/3r2b1 b - - 0 1 illegal: No proof kernel
1KQq2Nr/1pn1n1R1/1PpB4/B1r1n2B/p1kb1Q2/2rB4/Pq2b3/Nn1RQ3 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 f5 d4+ Kb4 e4 a5 d6 c6 g5 h3 d5 h2 d7 a4 g6 h4 g7 h3 d6 f3 Bf4 f2 Nc3 Rh7 Nge2 Ne7 g8Q Rf7 Qg3 Rg7 Qe1 Na6 Nd5+ Kc5 b4+ Kc4 b5 Rg5 Nf6 Nc7 Rd1 Bg7 Rg1 h1Q Qg4 Qf3 Nc1+ Qe2 Nb3 h2 Na1 h1N Bh2 Rh5 Qf4 Rh3 Rg6 Rc3 Rg2 Bh8 Rg7 Rb8 Ng8 Ra8 Bh3 f1N Bg4 Qb2 Bh5 Nf2 Bg6 Qe8 d8B Nd2 d7 Nb1 Kd6 Ng4 Bg3 Ne5 Bh7 Na6 Ba5 Nc7 d8Q Bd7 Qc8 Qd8 b6 Rb8 Qfd2 f4 Bh2 f3 Qf4 f2 Bg3 f1R Bf5 N5g6 e5+ Kb5 e6 Ne5 Be4 Kc4 Bh2 Rh1 Bg3 Rh5 Bh2 N7g6 e7 Rg5 e8B Ne7 Bh5 Bg4+ Qd7 Be2 Bg3 Nd3 Bh2 Rc5 Bg3 Qf8 Qc8 Qf6+ Kd7 Ne5+ Kd8 Ra8 Bd3+ Kd5 Qb8 N5g6 Qfd2 Bf1 Nh6 Nc8+ Re7 Be2 Bd6 Qh4 Qe3 Bd4 Qf4 Qf6 Kd7 Qh8 Rg7 Nce7 Qa7 Rc8 Qb8 Rf8 Qe8 Ne5+ Kd8 Ng8 Kc8 Ne7+ Kb8 Qg8 Bf5 Kc4 Qc8 Rd8 Bfg6 Qe8 Bh7 Qd7 Be4 Rh8 Ng8 Qd8 Bd3+
6q1/1K3p2/3rNR2/Bnq1kPQ1/Q1Np2pb/1QqB1rRn/2bN2PN/1q2r3 b - - 0 1 illegal: No proof kernel
R5n1/1NBkp2p/K1bQ2R1/B3Pp1P/1R4B1/1n1r2q1/2N2nrq/Qn2bBb1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 Ra5 gxf4 Ra3 Bb7 Ra1 Bc8 Kd2 a5 Kd3 d5 b4 a4 h4 f6 e4 f3 c4 a3 g4 f2 e5 a2 g5 Bg7 h5 Qd7 g6 Na6 c5 Rb8 c6 Bh6 c7 Qh3+ Nf3 Bb7 c8B Qh2 b6 Bc6 g7 Be3 Bg4 f5 b5 Rd8 b7 Kd7 b8Q Bd2 b6 Be1 b7 Nc5+ Kc2 Nb3 Kd3 Qg3 Nd2 Qh2 Rb1 a1B Ne4 Bac3 Bg5 Bb4 Ra1 Bc5 Ra8 Qg3 Qa1 Qh2 Be2 f1Q Nd6 Qff2 Bd2 Qfg3 Bf1 Bb6 Rg1 Bc5 Ba5 Ba7 Rg2 Bb6 Kc2 d3+ Kb2 d4 Ka3 d2 Kb4 d3 Nd4 Ba7 Nc2 d1N+ Kc4 d2 Re2 Baf2 Re4 Bg1 Qc7+ Ke6 b8B Nf2 Nb7 d1N Rf4 Rd3 Qd6+ Kf7 Bbc7 Nc3 Re4 Nb1 Rd4 Bg2 Kb5 Bh1 Ra6 Ke8 Rb4 Bf3 Ra7 Be4 Ka6 Bc6 Qh6 Kd7 Ra8 Nf6 Qg6 Re8 g8R Rd8 Rh8 Rg8 Qh6 Rg6 Rhg8 Rg5 Rg6 Ng8 Bge2 Qf3 Bd1 Rg2 Qd2 Qfg3 Bg4 Rd5 Qdd4 Rd6 Qc5 Rd3 Qd6+
3BnR2/b1Bq3N/R3Qn2/1pr2Bk1/b1nqBq1n/R2p1p2/NPQP3r/1K6 b - - 0 1 illegal: No possible last move
B1nRRR1N/rN3brq/Qn3Q1p/2p2p1k/7P/BBq5/Bn3P2/K1b1b1n1 b - - 0 1 illegal: No proof kernel
1B1K1RR1/3QBN1b/4Qp1q/2q4n/b2Bp2n/Q1bp1bNr/3P1P2/3r1Brk b - - 0 1 illegal: No proof kernel
2K3R1/p1N1Rnbn/1N3r2/P3qprQ/1Bn1B1Qq/1QBb4/k4P1p/1q1q2Q1 b - - 0 1 illegal: No possible last move
3kr1b1/2B4n/3p1pnr/Q2N3B/Kn1qpnQR/1B3q2/B3PP2/bqN2RQ1 b - - 0 1 illegal: No possible last move, all moves rejected
2rbQN1Q/k1p2B2/3n3B/3Kppnr/N1PB4/R1B2R1r/2RrqP1b/1b4q1 b - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 Ra4 gxh4 Ra5 Na6 Ra1 Nb8 Ke2 Kd7 Ke3 f5 Kd4 a5 g4 h5 b4 e3 g5 a4 b6 a3 b7 h3 b5 h2 b6 h4 g6 a2 g7 e2 Kc5 e1R d4 h3 d5 Nc6 b8B Rh5 b7 Nf6 g8Q Nh7 d6 Ne5 Nf3 Re2 Qe1 Nf7 Nc3 Nhg5 Qh8 Qe8 Na4 Rd2 Nd4 e6 c4 Be7 Ba7 Bd8 b8R Bb7 Bg2 Be4 Rb3 Kc8 Rf3 Kb7 d7 Rc8 Bb2 Bc2 Bc3 Nd6 Qe3 Qe7 Rhc1 Bb1 Rc2 h1Q Qee5 h2 Qe8 Qg1 Q5h8 h1R Bb6 Qf8 Ba7 Be7 d8B R1h3 Bb6 Bf6 Be7 Qg8 Bf8 Bd8 Bh6 Qg7 Rd3+ Ka6 Bd5 Qe5 Rf3 Qe2 Nc6 Qg3 Ne7 Qh2 Ng6 Qg1 Bba5 Ka7 Bd4 Qg4 Nf8 Qg1 Rcc3 Be4 Rac1 a1B Ra3 Bb1 Rcc3 Bb2 Rc2 e5 Bf7 Bc1 Rab3 Rd1 Ra3 Bf4 Bb4 Rd2 Bbc3 Bh2 Kd5+
1krQ1q1N/1rp2b2/qQ3B2/pnR2Q2/5bQ1/P1PB1R1n/2p1N1K1/n1n1Rr2 b - - 0 1 illegal: No proof kernel
4n2r/qnb1B3/1k1R1bp1/4ppBb/R3n3/N5Qb/N1rQqPP1/QB3BK1 b - - 0 1 illegal: No proof kernel
BQN2br1/2nqqR2/1p1nn1p1/1R1b4/NB1pNr1Q/1P1R2N1/6P1/1nk1K1b1 b - - 0 1 illegal: No proof kernel
3n1Bq1/q1p3bQ/Bp1p3Q/1bR3rn/1RN4K/1Pn1q2N/k1P4r/R1n1Q2R b - - 0 1 illegal: No proof kernel
b1B5/6k1/RpNN1Q2/1P1R1b2/nRr2Qrb/p2pnKB1/rqrP2RN/7b b - - 0 1 illegal: No proof kernel
1BN1rQ2/qnR1r1p1/NBB3P1/p3r1bn/4p1bk/Pn2Q3/p1K1B1b1/1R5R b - - 0 1 illegal: No proof kernel
4BN1N/1r1q1pp1/R1r1npq1/K2n1QR1/1Bb1RpP1/2Q1rP2/5b1n/3RQk2 b - - 0 1 illegal: Other
b1Q3k1/1Nn1rNnN/2p1p1Bn/3R4/1bP1Pppq/2q2B2/1rQ4B/3qRKN1 b - - 0 1 illegal: No proof kernel
RrNnB3/N2bK1Nn/1qpp4/pn2Br2/P6N/2PQ3Q/1b2pR1R/4kqb1 b - - 0 1 illegal: No proof kernel
4NB2/1pn1R2N/1b2p1qp/2B2b2/2N1BQ1P/qPRKNr1p/3bn2Q/1k3r1n b - - 0 1 illegal: No proof kernel
b2q1Nn1/Qn1Nqr2/p1pp1B1k/nB4R1/1pb1Bbr1/3Q1N1B/PP6/3R3K b - - 0 1 illegal: No proof kernel
7k/pR2p1pb/1r1N4/B1QBK3/P2r1pQn/Q1R2NPn/Q1qbN3/1nq1q3 b - - 0 1 illegal: No proof kernel forced: wxDB
1R1NnQq1/n1krBpp1/2b1p1pb/Kn4rB/8/Qq3RP1/4RP2/1R1qN2N b - - 0 1 illegal: No proof kernel
b2BN3/1rbp4/pp1k4/N2B2pr/rN5q/Q1q1R2n/K1NP1QP1/2qR2Bn b - - 0 1 illegal: No proof kernel
5Qnr/5pr1/R2pnQBr/1qN1b1rp/2p4P/2PQ3R/bN2kB2/KN3N1r b - - 0 1 legal: proof: d4 e5 f4 exd4 a4 b5 axb5 g5 Be3 gxf4 Bd2 Bd6 Bc1 Bf8 Kd2 Ke7 g4 Ke6 b4 Ke5 h4 Ke4 c3 h5 Kc2 c5 Kb2 a5 g5 a4 g6 f3 b6 f2 b5 d3 b7 d2 g7 Ke3 b6 Nh6 g8Q Qe7 Qg6 Ra6 Nf3 Nc6 b8N Bb7 Nh2 Qg5 Qf6 a3+ Ka2 Ra5 Na6 Nd8 Bh3 f1R Bf5 Rg1 Bg6 Bc8 b7 Bg7 b8Q Ng8 Qbd6 Rg2 Qf8 Ne6 Qc2 Qf5 Qd3+ Kf2 e4 d1R e5 d6 Nb4 Rh6 Nf1 Bb7 Rh3 Bd5+ Qc4 Ra8 Nd3+ Ke2 Be3 Rg5 Bf2 Bh8 Nb2+ Qd3 Nh2 Rdg1 Nf1 Rc8 Bf5 Rg7 Bh7 R1g5 Bg6 Be4 Qd4 Qb5 Qd5 c4 Qd4 Nc7 e6 Bd3 e7 Ne6 e8N Bc2 Nbd2 Bb3+ Kb1 Rd8 Nc7 Re8 Na6 Rb8 Nd1 a2+ Kb2 Ra8 Nc5 Rd8 Rc1 a1R Nb1 Ra3 Qd5 Ba2+ Ka1 Ra5 Nb2 Rg1 Qe8 Rh1 Qf8 Rda8 Qf4 Rc8 Nb3 Qb4 Qd8 Nf6 Na3 Rg8 Rb1 Rh7 Nd1 Qa4 Qdf5 Rd5 Nc5 Rh6 Rb6 Qb5 Nb2 Bg7 Qb1 Rg5 Ra6 Rgh8 Qbf5 R8h7 Qe7 Rch8 Nb1 Ng8 Qf8 Be5 Qf6 Rg7 Qd4 Qb8 Qd5 Qb5 Qd3+
rRRQBbQ1/1ppr1Rnq/1P4bR/k1P2p2/1nb4N/2K1b1B1/p5b1/1N1N4 b - - 0 1 illegal: No proof kernel
2K2n2/N1np3k/p2R1Rbp/PQQrNnp1/5N2/1B1nn3/1N1bq1Pr/3BB3 b - - 0 1 illegal: No proof kernel
1R5b/nQ3bBp/pRBrb2p/N1k5/rq2pn1P/3rb3/Q1Q1P2N/KR3R2 b - - 0 1 illegal: No proof kernel
3R2nR/rR3B1b/n2pQb1p/N1BP2r1/1N3R1b/4p1pQ/3QK2P/2b2nkq b - - 0 1 illegal: No proof kernel
6R1/p1knQRKp/Q7/1pN4p/P1BRnn2/3B1bbP/B3N1b1/b1r1Brq1 b - - 0 1 illegal: No proof kernel
3b2R1/p1r3B1/qprk2bn/3R4/1PBQ2Np/P3rQ1n/bKb2p1N/1N2B1B1 b - - 0 1 illegal: No possible last move, all moves rejected
1knB1N2/R3pq1p/4r2p/3BnNQ1/2bp1n1R/N4BQ1/1KnPPN2/2r1b2r b - - 0 1 illegal: No proof kernel
B5RR/B3QbpK/1q3pP1/N2b2Q1/1pk1bP1b/4n1nN/qpr4r/2Q2NQ1 b - - 0 1 illegal: No proof kernel
5R1N/4bB2/n3R1Qp/r1Brqp1p/1kq1p3/N1b1RP1n/1B1BP3/2Kb1Q1b b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 axb5 g6 h5 gxh5 Kd2 e5 b4 Ke7 c4 Kd6 g4 a5 c5+ Kd5 c6 Kc4 f3 d5 g5 e4 g6 d3 g7 a4 c7 a3 b6 d4 b7 a2 b5 Bc5 b6 Ra5 Bh3 Qe8 Bb2 Ne7 g8Q Ng6 Na3+ Kb4 Be6 Be7 Qf1 Na6 b8B Nf4 b7 Nh3 Ba7 f6 b8B h6 Kc1 Rh7 Rb1 a1B Qg6 Qb5 Ba2 Qe5 Bf7 Bf5 c8R d2+ Kd1 Bg4 Rf8 f5 Rc1 Rh8 Rc3 Rd5 Kc2 d1B+ Kc1 d3 Be3 Rg8 Bd2 Ra5 Ba7 Rh8 Ra8 Rd8 Bae3 Rdd5 Rf8 Nf2 Rh4 Bh3 Rg4 Bg2 Nh3 Bh1 Nf4 Nh3 Qh7 Qf6 Ng6 Qe5 Nh8 Ng1 Be1 Nh3 Rg6 d2+ Kb1 Rab5 Re6 Rbc5 Qg6 Ra5 Bc1 Bb2 Ba7 Ba1 Re3 Bc3 Bd4 Ba4 Ba7 d1Q Bd2 Qb3+ Bb2 Qc4 Kc1 Bd1 Bc5+
knrbB3/5NpN/2pr4/n1P2Kbp/2bQ3Q/p1RRq1bN/3B1B1P/1q3B2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 bxa4 g3 f5 g4 fxg4 Kd2 h5 Ke3 a5 Ke4 d6 b4 Kd7 f4 Kc6 c4 Kb7 b5 g3 c5 a3 f5 g2 b6 a2 e6 a4 f6 a3 e7 Ra6 e8B Ka8 f7 Be6 Bd2 Qe7 Nh3 g1B Nc3 Qg5 Nb5 Bf2 Rc1 a1B Rc3 Be7 f8N Bd8 Nh7 Bc4 e3 Qg1 Kf5 d5 e4 d4 e5 d3 e6 Bg3 e7 Qe3 Nd6 Bb2 Nf7 Bc1 Be1 d2 b7+ Ka7 Qg4 d1Q Qh4 Rd6 Bf2 Qb3 Rd3 Qb1 Rg1 c6 Qd4 Nf6 Rg2 Ne4 Rg1 Nd7 b8B+ Ka8 Bc7 Nd2 Ba5 Nb3 Bd2 Nb8 Qh4 Be5 Rg3 Na5 Rf3 Bg3 Qd4 Qb6 Rc3 Qh6 Rfd3 Qb1 Bd7 Qe3 e8Q Bf6 Qe6 Rc8 Be8 Bd8 Qe7 Qe2 Bde1 Bg5 Bd2 Qee1 Qee4 Qe3 Qh4
3B1nR1/1p4Q1/1p1R4/n1pB4/q1N2Kb1/pn1rQQNR/PP2Qq1r/nk4b1 b - - 0 1 illegal: No proof kernel
1bN1Q2B/q3p1bp/1NR4Q/k1n1PR1K/1Nbnq3/2Bp3P/BrN2p2/5br1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 Ra5 gxf4 Ra3 Bb7 Ra1 Bc8 Kf2 a5 Kf3 d5 b4 Kd7 Kg4 Kc7+ Kh5 Kb6 e4 f5 c4 d3 g4 d2 h3 f3 c5+ Kb7 b6 d4 g5 f2 b5 f4 g6 a4 g7 a3 Nc3 a2 Nge2 f3 Bb2 Be6 c6+ Kc8 c7 Kb7 c8N Ra4 Rc1 a1B Na2 Qc7 Nb4 Ra2 Bc3 Nh6 g8Q Bg7 Qe8 Nf5 Rc2 Bb3 Qc1 d1Q Qh6 Qd3 Rg1 Bb2 Rg5 Na6 Bg2 f1B Bh1 Ne3 Rf5 f2 Bf3 Qdc4 Bg2 d3 Nd4 Nc5 Rc1 Ba1 Ndc2 Rg8 Bh1 Kb8 b7 Rb2 Bg2 Qd7 Bf3 Kc7 b8B+ Kb7 b6 Qa4 Bc7 Qa7 B7e5 Qd4 Bf6 Bc4 e5+ Qe4 Nc6 Ka6 b7 Kb5 b8N Ka4 N6b4+ Ka5 Rf4 Nf5 Nd7 Nd4 Rf5 Bf8 Bh8 Rg1 Ndb6 Bg7 Ne1 Rd2 Rc2 Bb2 Bh1 Ba3 Rc1 Rb2 Nec2 Qe3 Bc6 Qe4 Bd5 Bb5 Be1 Na6 Na1 Qg2 Rc6 Qe4 Ba2 Bc4 N4d5+ Bb4 Nc3 Ba3 Nc2 Bd6 Bd2 Bb8 Ncd5+ Rb4 Bc3 Nc5 Ba1 Rb1 Ndb4 Rb3 Bc3 Rb1 Re6 Rb2 Rc6
1Q2n1rn/1qp3Rn/b3Q1RN/b3p2p/K3B2k/2B1p1N1/n1PrP3/1NN1Qq2 b - - 0 1 illegal: No proof kernel
r4Qbk/B1pR1pq1/1N1R1Q1b/1pPp1Bbq/B2B4/n4n1r/3N1P2/2bK1R2 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g3 h5 g4 hxg4 c4 g5 h4 d5 a4 b5 e4 g3 h5 g2 h6 g4 h7 b3 e6 g3 a5 b2 e7 Nh6 a6 Nf5 a7 Nd6 e5 Bf5 Qd4 Nc6 Nc3 b1Q Na4 Rc8 a8R Qb2 Nf3 g1B Bd3 g2 Bc2 Bh2 Rf1 g1B Kd1 Bf4 Be3 Bgh2 Qc3 Be4 Ba7 Nd4 c5 Bc1 Nd2 Bf4 Ra2 Nc4 Qf3 Rg8 h8B Bh7 Bb3 Rg3 Rb8 Kd7 e8B+ Ke7 e6 Bg8 Bd7 B8h6 Ra3 Kf8 Ra1 Bh7 e7+ Kg8 Bf6 Rh3 e8Q+ Bf8 Qc3 Nf3 Bf5 Be3 Bg7 Qg5 Qe7 Re8 Rd8 Qh5 Rd7 Ra8 Bf6 Bg7 Ra2 Kh8 Qf8+ Bg8 Qe5 Qd4 Qee7 Qdg4 Bd4 Qgg6 Qf6 Bg5 Bbc2 Qgh7 Ra3 Q7h6 Re3 Qh7 Re6 Na3 Nb6 Q7h6 Ba4 Qh7 Q6d8 Q7g6 Rf6 B7h6 Rfd6+ Qg7 Qf6
RnR1qQ1k/4pb2/Q1np2r1/3BPK1n/1rQ5/1Bb1pBN1/pBpP4/2N3b1 b - - 0 1 illegal: No possible last move
1rbk1BQQ/2p1p3/pBRqP1p1/Np1r2rn/P3Q2b/2q3nB/2N1RK2/4B3 b - - 0 1 illegal: No proof kernel
N3nnRQ/1R2Q1R1/2p1pB1R/q6k/1bP1b2p/p1r5/P1q3pr/BB2NbK1 b - - 0 1 illegal: No possible last move, all moves rejected
2Q1br2/1RrN2p1/N1qp2k1/B3pp2/5P1q/3P1RbN/1pQ1BbKn/5QNn b - - 0 1 illegal: No proof kernel
4nNr1/K5Q1/p2Q3q/pQn1pRrn/N5p1/1p2B3/P1R1bkP1/2QBbB1q b - - 0 1 illegal: No proof kernel
Rr2bR1K/2bpq3/n3nQb1/1Np1pr2/1RpPP2R/N7/2p1B1bB/1Q1B3k b - - 0 1 illegal: Other
kQNrQ1n1/1p1p1N1p/1P1b2Rr/2B1pb1p/bb5q/1BRPQ3/5B1Q/K6n b - - 0 1 illegal: No proof kernel forced: wxLB
2N1b1N1/1R1Qp1r1/R1B4r/p1Bnrp2/n1pk1pR1/Q1r3Q1/P2KPb1Q/7q b - - 0 1 illegal: No proof kernel
R1qQ1Bb1/PP2B1b1/1p3R1q/R1nq4/2N2b2/4R1qR/1R2K1Nn/1b4k1 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 a4 Nb8 a5 Bh6 Qc2 Bg7 Qd1 Bf8 a6 b6 Ne2 Nd7 Ra4 Rb8 Ng1 Rb7 axb7 a5 Ra1 Nb8 b4 h5 Bc4 a4 Bb3 axb3 Ba3 Rh6 Bc1 Rc6 Ra7 Rc5 Ra1 Ra5 bxa5 Be6 Na3 Bd7 Nb1 Bc8 g4 Kd7 f4 Kd6 d4 e5 f6 c5 f7 c4 a6 c3 g5 h3 g6 c2 f5 e4 f6 e3 g7 b2 a7 h2 Nd2 b1B Ra5 e2 Nh3 h4 Nf4 h3 Ng2 Na6 Ba3+ Nc5 Bb4 Nh6 g8R c1B Rg3 Bd7 Re3 Bg7 f8R Qc8 f7 Ng4 Ba3 Be6 Nc4+ Kc7 d6+ Kc6 d7 Kd5 Rd3 Ke4 d8R Bg5 d5 Bf4 d6 Bd5 Rd2 Kf3 d7 Kg3 Rfe8 Kf3 f8B Bg8 Rc2 Kg3 Rf1 h1Q Rb2 h2 Re5 Kh3 Rde8 Kg3 d8R Kh3 Rh5+ Kg3 Nh4 Qd5 Ng2 h1Q Rh8 Qh6 Re3+ Kh2 Qd4 Bb8 Rf6 Kg1 Qd1 Bf4 Rh7 Qcc6 Ra8 Nh2 Qd4 Qc8 Bb4 Nd7 Bbe7 Nc5 Kd2 Qg6 Rh3 Qh6 Kc3 e1Q+ Qd2 Qd1 Qd3 Qa4 Kd2 Qa3 Ke2 Qb3 Qg6 Qa3 Qe8 Qb3 Qd8 Qa3 Re5 Qg3 Re3
n2R4/3B1n2/1R1rRk1p/3r1pbR/1pR1P1P1/N1b1qb1Q/N1K4R/4B3 b - - 0 1 legal: proof: b4 d5 h4 a5 bxa5 e5 c4 g5 cxd5 Qd7 hxg5 Ra7 f4 exf4 a4 Qxa4 Rxa4 Ra6 Ra1 Ra8 d4 Ke7 Kd2 c5 e4 b5 g4 f5 a6 b4 a7 h6 g6 f3 d6+ Kf6 g7 c4 d5 f2 d7 c3+ Kc2 Bb7 d8R Bc8 d6 Bd7 Rc8 Nc6 Qf3 Nd8 Bd2 Nf7 Rc4 Rd8 a8R Ne7 g8R Nd5 Rh5 Bb5 d7 Nc7 Qh3 Bg7 Rb8 Na8 Be1 Rh7 Be2 f1Q Ra2 Qf2 Re8 Qe3 Na3 Bh8 Re5 Rg7 Bf1 Rg6 Ne2 Bg7 Nc1 Ba4+ Kb1 Bd1 Rh2 Bf3 Na2 c2+ Kb2 c1B+ Kc2 Bd2 Be2 Bc3 Bd3 Bf8 Be2 Be7 Rb6+ Kg7 Bf1 Rd6 Re6 Bg5 Be2 Rc8 d8R Rc5 Rd4 Rcd5 Bb5 Rc6 Rc4 Rcd6 Ree8 Kg6 Bd7 Kf6 Re6+
1rkn1RQ1/2N5/bb2RnR1/B1P3NR/1R1K2n1/2R2rb1/2q1PB2/n2bb3 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 gxf5 Nf6 d4 cxd4 Bh3 Ng8 Bg4 hxg4 Kf2 g5 b4 a5 h4 d5 c4 Kd7 c5 d3 Ke3 d2 f6 g3 h5 g2 b6 a4 f7 a3 h6 g4 b5 g3 b7 a2 b6 Be7 f8R Nf6 h7 Nc6 b8R Ra3+ Qb3 d1B Nf3 Ba6 b7 Qa5 Nc3 Bd8 Rh2 Qa4 Bd2 Bb6 Nb5 Nd8 Rc1 a1N Ba5 g1B+ Rf2 g2 Ng5 Rg8 h8R Bh2 Nc7 g1B Rc3 Bg3 Rh5 Rh8 Qa2 Qc2 Kd4 B1h2 Rf1 Be1 Rg1 Bhg3 e6+ Kc6 e7 Kd7 Rc4 Rf3 e8R Rg8 Re6 Rh8 Ra8 Rg8 b8B Kc8 Rc3 Rh8 Rgh1 Rg8 R1h4 Rh8 Rf4 Rg8 Ke5 d4 Ra7 d3 Kd4 d2 Rb7 Ba7 Rb4 Bb6 Rg4 Rg7 Ne8 Rb7 Bf4 Rb8 Be3 Nf7 Qc4 Nd8 Nc7 Qc1 Ne4 Bc2 Rc6 d1N Qg8 Nf2 Re6 Bd1 Rg6 N2g4 Bf2 Qc2 Ng5
B1b1B3/2N2r1p/1rBnB1QP/3r1b2/N1k5/1Bn2R2/3Pn1R1/KnBn2q1 b - - 0 1 legal: proof: b4 c5 bxc5 d5 e4 dxe4 a4 b5 axb5 Qd7 Nf3 Qd6 Ng1 Qd8 f4 g5 c6 gxf4 Ra2 e6 Ra4 Nd7 Ra1 Nb8 Ke2 a6 Ke1 Bc5 Na3 Bd4 Nb1 Ba7 b6 Bd7 bxa7 Bc8 g4 Ke7 h4 Kd6 c4 Kc5 h5 f5 c7 e5 g5 e3 h6 e4 g6 a5 g7 f3 Qe2 f4 Kd1 a4 Kc2 a3 Ra2 f2 Qg4 e2 Rb2 e1R Rb4 f3 Qg6 e3 Bb2 a2 Bc3 a1N+ Kb2 e2 Be5 Qd4+ Ka2 Nc2 Rh3 Na3 Rb6 Na6 Bg2 f1B Nc3 f2 Nb5 Nf6 g8B Ne4 Be6 Nd6 Rf3 Rb8 a8B Rf8 Bf6 Qg4 Bb2 Rf7 Bc1 Nb1 Ka1 Nb4 Bf5 Qg5 Bc2 Nd5 Ra6 Kb4 c5 Kc4 c6 Ndc3 Ra5 Bf5 c8B Rb6 c7 Qg4 Bh1 Bh3 Bd7 f1N c8B Ne3 Nc7 Ned1 Be8 Rf1 Ra7 e1N Ne2 Ng2 Bcd7 Nf4 Be6+ Nfd5 Ra3 Qg1 Rg3 Rf4 Rg2 Rd4 Rb3 Na2 Rf3 Nac3 Bc8 Nf4 Be6+ Rd5 Bac6 Nce4 Nc3 Ne2 Na4 N4c3 Ba8 Ndb5 Rg4+ Be4 Rf5 Nd6 B6d7 Rdb5 Bf3 Rb8 Rg2 R8b6 Bc8 Bb7 Bfc6 Rd5 Be6 Bc8 Rf3 Bf5 Bb3+
1Nnn2NB/bqNN1P2/nk4PR/1N1B4/r1r1p3/r2Q1r1b/3K1b1N/7R b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kd7 f4 c5 g4 Kc7 f6 h5 d6+ Kb6 f5 e5 g5 h3 g6 h4 f7 e4 d7 c4 d5 h2 f6 h3 d6 b3 Bd2 b2 Bc3 Nh6 Bd2 c3 Ra7 c2 Ra3 c1B Bc3 Be3 Qd3 Qe7 d8N Qb7 d7 Ra4 Nc6 Bfc5 f8N Bf2+ Kd2 Nf7 d8N Na6 Nde6 Nd8 f7 Rh4 Rb3 Rf4 Na3 b1R Nc7 Ra1 Ne7 Rf3 Bh8 Rc1 Ng8 Rcc4 Ne2 Bg4 Ng3 Be6 Be2 Bd7 Nf1 Bcd4 Rg1 h1N Nh2 Ng3 Rh1 Nf5 Bf1 Nd6 Rc3 Ka5 b6 Nc8 Nab5 Bg4 Nd7 Be6 Ng4 h2 Be2 Bc5 Bd1 Ra3 Bb3 Rca4 Bd5 Rc4 Re1 h1R Nh2 Bh3 Rc2 Rg1 Ra1 Rg2 Rh1 Rg1 Rc3 Rga1 Rcc1 Raa4 Rcg1 R1a3 Rd1 Qc6 b7 Ba7 b8N Qa8 Rdg1 Qb7 Rg5 Rb3 Rh5 Rba3 Nc5 Kb6 Rh4 Rg3 Rh6 Rf3 Ncd7+
1B1r2B1/B4r2/R3q2b/3bR1N1/rBn5/5Pn1/rqPp1QkB/n1BK1N2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 h4 Kf7 b6 Kf6 h6 Ke5 h5 Ke4 b7 g5 h7 e5 h6 d5 f6 b3 f7 g4 Bf4 d3 Be2 d2+ Kf1 d4 Rh4 g3 Ra2 d3 Ra7 b2 Ra5 Nf6 Rh5 Qd6 Rh1 Nbd7 b8B Qe6 Bc7 Nc5 Rh5 Nb3 Bb6 Na1 Nh3 g2+ Kg1 Bb7 Bh2 Bd5 Qf1 d1N Ba7 Ne3 Ra6 Nc4 Rg5 Bg7 f8B Nh5 Bb4 Rhd8 h8B Ng3 h7 Bh6 Bb8 Ra7 f3+ Ke3 Nd2 b1Q Rf5 e4 Re5 Qb2 Ng5 Rf7 Qf2+ Kf4 Bf6 e3 Nf1 d2 Bd3 e2 h8B e1R Bh7 Re3 Bg8 Ra3 Bfe7 Ra2 Bec5 Ra4 Bca7 Ra2 Qb6 Ra4 Kf2 g1R Bg7 Ra2 Bgf8 Rh1 Ba3 Rg1 Bfb4 Rh1 Bg1 Rh4 Qc5 Nh5 Ke2 Ng3+ Kd1 Nf5 Ne3 Kg3 Nf1+ Kg2 Bh2 Ng3 Qb6 Qb3 Bc1 Qb2 Ba5 Nd6 Qc5 Rha4 Bb4 Nc4 Qf2+
NBBBbr1N/1B1R4/n1K1B1b1/Rr1Bp3/1P1q4/1bb2qb1/Q1P5/q6k b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 fxg5 fxe4 a4 b5 axb5 Nc6 h4 Nb4 d4 cxd4 g6 Bh6 h5 Nd5 g5 Bf8 h6 Ndf6 Rh4 Nh5 Rh1 Ng7 hxg7 Ba6 Rh5 Bb7 Rh1 Bc8 Kd2 h5 b4 a5 b6 d5 b7 Kd7 b8B Kc6 Bc7 h4 Bd6 a4 Bb8 a3 Bb2 h3 Qg4 d3 Ke3 a2 Kd4 e3 Bc1 e2 Be3 e1B Qh5 d2 Qg4 d1B Rh2 Ra5 Rd2 h2 Nf3 h1Q Nh4 Qf3 Qg2 Be6 Rd3 Rb5 Na3 Bg3 Nc4 Nf6 g8B Ne4 g7 Nc5 g6 Na6 Bg5 Be2 Rdd1 Bd3 Nb6 Bf7 Na8 e5+ Kc3 Bc5 Be7 Qd7 Bd8 Bd4+ Kb3 Qa7 Ka4 Bc3 Qe2 d4 Bh3 Kd5 Bc8 Bf5 Qc4+ Ke4 Rd3 Be8 Bge6 Rf8 g8B Kf4 g7 Bfg6 Qb3 Qd7 Rdd1 d3 Bh7 d2 g8B Bgf7 Be4 Qd4 Beb7 Ke3 Qd5 Kf2 Ng6 Kg2 Nh8 Bg6 Qb3 Kh2 Bed5 Kg2 Bge6 Bef7 Rh1 d1B Rh7 Be8 Rd7 Be2 Rd1 a1Q+ Qa2 Bc4 Rb1 Qd1 Rb3 Kh1 Ra3 Rb6 Ka5 Qd4 Ka4 Bb3+ Ka5 Rc6 Kb5 Rc5+ Kb6 Ra5+ Kc6 Rb5 Ra5
2n5/B1npbK2/1N2RQ2/1n1qNPR1/1r4P1/qrk2nr1/2N1B1N1/2Nq2N1 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kd3 h5 Ke4 a5 Ke5 d3 b4 a4 c4 h4 b6 h3 b7 a3 b5 a2 b6 f3 c5 h2 c6 f2 c7 d2 c8N Ra3 Nc3 Na6 b8N Nc7 b7 Rb3 Ba3 Rh3 Be2 f1R Na6 Rf4 b8N Rfb4 Nc6 Rg3 Nb6 Qa8 g6+ Kg7 Rb1 a1N Na2 Nc2 Nc1 Nd4 Bb2 Ndb5 Bd4 e6 Qe1 d1Q Qc3 Ne7 Ra1 Ra4 Nab4 Nc8 Nc2 Rab4 Ra6 Be7 Qb2 Kh6 g7 Kg5 g8N Qa7 Ke4 e5 Nf6 Qa8 Nh5 Qa7 Ra1 Qa3 Nf4 Kf6 Ng2 Ne6 Nf3 Nec7 Re1 h1Q Qc3 Qb2 Ra8 Qa3 Ra6 Qh7 Rh1 Qf7 Rh5 Qc4 Rg5 Qd5+ Ke3 Kf7 Bc5 e4 Ne5+ Kf6 Kf4 e3+ Bd4 Qd6 Ng1 Qd5 Bd3 e2 Bc4 e1N Be2 Bf8 Qc6+ Ke7 Qg6 Nf3 Qf7+ Kd6 Qf6+ Qe6 Nbc4+ Kd5 Ba7 Qg8 Rc6 Be7 Re6 Nfd4 Nb6+ Kc5 Rh5 Qf7 Kg5 Nf3+ Kh6 Qg8 Rg5 Qf7 Nce1 Kd4 Nc2+ Kc3 Rg6 Qe8 Kg7 Qh8+ Kf7 Qh1 Rg5 Qd5 Nh3 Qhd1 Ng1
rrnn3K/Rn4Q1/2nB1R2/bR2N3/3p1n1B/r1Pnq3/2kRR1P1/R5N1 b - - 0 1 illegal: No possible last move, all moves rejected
B1Rqq2N/1r4P1/3r2n1/r1PpR3/2Rq1R1R/3nnR1K/1r1B1N1Q/1k4r1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 exf4 Kd2 b5 axb5 f5 Nh3 f3 Ng1 f2 Nc3 g5 Ra4 f4 Nb1 Bd6 Ra1 Bb7 Bh3 Bf3 Bf1 Bg4 h3 f3 Ra3 Bf4+ gxf4 Bf5 Ra5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qe7 Ra3 Qg5 Ra1 Qd8 c4 Ke7 b4 Kf6 e4 a5 e5+ Kg6 c5 h5 e6 h4 g5 Kf5 e7 Ke4 e8R+ Ne7 b6 d3 b5 g2 b7 d6 b6 a4 f5 a3 g6 h3 f6 h2 f7 a2 f8R Ra4 g7 Na6 b8R Rb4 b7 Rh6 Nh3 g1R Nf4 Rb2+ Qc2 Nb4 Bg2 f1N+ Ke1 Ne3+ Kf2 Re6 Kg3 Ng6 Qf2 d2 Rc8 d1Q b8R Qd4 Kh3 Nd3 Rb3 Re7 Rf5 Rd1 Ref8 Rb7 Bd2 Qe8 Rc3 Qd8 Rc4 Qe8 Re1 h1Q+ Kg3 Qf1 Kh3 Qg1 Bh1 Qg5 Qh2 Qf6 Rh5 Qfd8 Re2 Rg1 Rh4 Rd1 Rg2 f2 Rgg4+ Ng2 Rg3 f1R Rf3 Rg1 Rf6 Ne3 Nc3+ Ke5 Rb1 a1R Ne4 Ra3 Nf2 Ra5 Ne6+ Kd5 R6f4 Ke5 Ng5 Kd5 Ra4 Ke5 Nf7+ Kd5 Ra2 Kc4 Nh8 Kb3 Ra4 Kc2 Rb4 Raa2 Ra1 Ra5 Raa4 Kb1 Rc4 Rg4 Rf5 Rdg1 Rd5 Rf4 Re5 Rf6 Rff4 Re6 Ra3 Rf6 Bc6 d5 Rac3 Rd6 Rb3 Rb8 Ba8 Rbb5 Rf3 Rb7 Rbb4 Qc3 Rcf4 Qd4 Rc4
7B/2Pnn2k/4r3/BB4pq/3QN2r/1K1pq1n1/2Bq2RP/R1BBN1rb b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g4 h5 gxh5 a5 b3 a4 b4 Bd6 Nc3 Bc7 Nb1 Ba5 bxa5 Kf8 Bg2 Ke7 Bf1 Ke8 Kd2 Kf8 e4 f5 c4 d5 Kc2 g5 b6 Kg7 c5 a3 c6 a2 b7 f3 a6 f2 a7 d3+ Kb3 d4 h6+ Kh7 e5 d2 e6 f4 e7 f3 e8B Ne7 Be2 f1N Nc3 f2 Nf3 Ng3 Rg1 f1Q Ne4 Qe1 Rg2 Nd7 b8B Bb7 Bc7 Rb8 Bd3 Qe3 a8B Rc8 Qg1 d1R Qf2 Rg1 Ba5 Rb8 c7 Bd5+ Ka3 Rb6 Ne1 Re6 Qf6 Bc6 Kb3 Bb7 Bh5 Qe8 Bg4 Qh5 Bd1 Qd2 Bb1 d3 Qd4 Bc6 Bbc2 Qe3 Rb1 a1Q Bb7 Qd2 Ba6 Qe3 Bb5 Qb2+ Ka4 Qc3 Ra1 Qcd2 Kb3 Rf8 Bb4 Rf4 Bc3 Rh4 Ba5 Kg6 h7 Bb7 h8B Kh7 Nc3 Bc6 Rf2 Bg2 Ne4 Bh1 Rg2
N7/r1BPK2b/B1kp1Nbp/4b2q/1nqPNr2/4Rr1N/2r1QN2/NR6 b - - 0 1 legal: proof: b4 a5 e4 b5 h4 f5 exf5 g5 c4 gxh4 c5 d6 c6 Nd7 cxd7+ Kf7 a4 axb4 axb5 Kg7 Ra5 Kf6 Ra1 Kf7 Ke2 e5 Kd3 Ke7 Ke4 c5 Kd5 e4 g4 e3 f4 e2 d4 e1Q f6+ Kf7 g5 c4 f5 c3 b6 h3 b7 h2 b8N c2 Na6 h6 Nd2 b3 Ra3 b2 Ne4 b1B Nac5 Qc3 Nf2 Qd3 Nce4 Qh3 Ba6 Qb6 Qe2 Qc3 Bd2 c1R Ngh3 Bg7 Be1 Qcc7 Re3 Rc2 Ba5 Ra7 Rf1 h1R g6+ Kf8 Ke6 Bb7 f7 Ne7 Re1 Qb5 Bb6 Qcc5 Bc7 Be5 Rg1 Kg7 f8N Nc6 f6+ Kg8 g7 Nb4 Rc1 Qcc4+ Ke7 Rf1 Ne6 Bd5 N6c5 Bf7 Re1 Bg6 Nb3 Qa5 Na1 Qad5 Kd8 Kf7+ g8N Ke6 f7 Qa5 f8N+ Kd5 Rd1 Kc6 Ngf6 Rh7 Rc1 Rf7 Ne6 Rf8+ Ke7 Bh7 Nd3 Rf3 Ndf2 Rf4 N6c5 Bg6 Na4 Rf3 Nb6 Qad5 Nh5 R8f4 Nhf6 Bh7 Na8 Qf7+ Kd8 Qh5 Ke7 Rd2 Nc3 Bbg6 Rb1 Rc2 Nce4
3b1N1N/NK2NnN1/B1RB1Pn1/R2Pq3/2b3Qp/4b1b1/p2k1n2/N2b2q1 b - - 0 1 legal: proof: e4 d5 a4 a5 c4 dxc4 h4 b5 axb5 f5 h5 f4 h6 Ra7 Ra3 gxh6 Ra4 h5 Ra1 h4 f3 h5 Rh3 e5 Rh2 Rh6 Rh3 Rf6 Rh1 Rf5 Qc2 Ra6 Qd1 Re6 exf5 e4 Qc2 e3 Qd1 Re4 fxe4 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kd7 Kf3 Kd6 b4 Ke5 g4 Kd4 f6 c5 g5 a4 g6 e2 e5 Kd3 g7 c3 b6 h3 b7 h4 b5 c4 e6 h2 b6 a3 e7 c2 e8N c3 Nh3 Ne7 g8N Qc7 Ng7 Nbc6 b8N Qd8 b7 Ng6 Ne7 Bf5 Ng5 Qd6 Nf7 Nd8 Nd7 Qe5 Nh8 Nf7 b8N Bh3 Rg1 h1N Nbc6 Nf2 Na7 a2 Ba3 c1B Bd6 c2 Rg5 Be6 Na3 Bb3 Rb1 Ba4 Rb6 Bb3 Rc6 Ba4 Nd5 Be7 Nf8 Bd8 Ne7 Bb3 Bg2 e1B Bf1+ Kd4 d3 Be3 Rf5 c1Q Be2 Bc4 Nc2+ Kc3 d4 Qb1 Na1 Qb6 Qa4 Kd2 Rh5 Bb3 Rg5 Bd1 Qc4 Qe6 Ra5 Qe5 d5 Nh3 Kg4 f3 Qe4 B1f2 Ba6 Bg3 Qf5 f2+ Qf3 Qed4+ Kf5 f1B Ke6 Nf2 Kd7 Bc4 Kc8 Qe5 Qg4 Qb1 Nfe6 Ba4 Nf8 Qg1 Kb8 Bd1 Kb7
2qn1bb1/6N1/RB2Rn1b/N2N1nN1/n2kNK2/pP1P2p1/1qQ3N1/6qB b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 Bh3 dxc4 Bg2 b5 axb5 f3 Bh3 a6 Bf1 f4 h3 h5 Na3 g5 Nb1 a5 Qa4 Rh6 Qd1 Rf6 h4 Rf5 gxf5 g4 Qc2 Ra6 Qb3 Rg6 Qd1 Rg5 hxg5 Ba3 Qb3 Be7 Qd1 Bf8 Kf2 Kd7 e4 Kd6 f6 Kc5 d3 a4 b6 h4 e5 a3 f7 h3 g6 h2 b3 c3 b7 c2 e6 Nf6 g7 Kd4 g8N c5 e7 c4 e8N c3 Ng7 Be6 Nh3 Nc6 b8N Qc8 Ne7 Nd8 Bg2 Bd5 Rg1 h1Q Ng5 Qh2 Nd2 Be6 Bb2 c1N Nd5 Na2 Nde4 Qh8 Bc1 c2 Bh1 Nc3 Rb1 Na4 Be3+ Ke5 Rb2 c1B Re2 Bd2 Bb6 Be3+ Kf1 f2 Kg2 f1N Qc2 Ng3 Rf1 Nf5 Rf3 Bfc5 f8N g3 Ng6+ Kd4 Nh4 Bg8 Rff2 f3+ Kh3 Nh5 Kg4 Bd2 Re3 Nf6+ Kf4 Bc1 Rh2 f2 Ng2 Bd2 Rh6 f1Q+ Nf2 Qg1 Rg6 Bc3 Re6 Qhh2 Nfe4 Bb4 Bc7 Bf8 Bb6+ Bbc5 Nd7 Qh8 Ne5 Qhh2 Nc4 Qh8 Ne8 Bh6 Na5 Qg7 Bc7 Bf8 Ra6 Qe7 Ng7 Qb4 Re6 Qc3 Ra6 Qca1 Re6 Qb2 Ra6 Nd7 Rge6 Nf6 Bb6+
1r2bB1R/3RK1N1/4Q1PB/1PkpN1p1/2N2nN1/p4N2/1nnn1Nnb/3r4 b - - 0 1 legal: proof: g4 e5 d4 exd4 a4 b5 axb5 f5 gxf5 c5 h4 Qg5 Bg2 g6 Be4 c4 Bd3 cxd3 h5 Qh6 Nc3 g5 Nb1 Qg6 hxg6 Ba3 Rh6 Be7 Rh1 Bf8 Kd2 Ke7 e4 Kd6 c4 h5 f4 a5 b4 a4 f6 a3 c5+ Ke6 b6 h4 b5 h3 f5+ Ke5 c6 Kd6 c7 h2 b7 Ne7 f7 Rh4 f6 Rh6 e5+ Kd5 e6 d6 Qb3+ Kc5 Nf3 Bg7 f8B Rh7 f7 Nec6 e7 Rh8 e8N Bd7 c8N Ne5 Bb2 Na6 b8N Nb4 Nc3 Nc2 Nc6 Rb8 Nf6 Be8 Nb6 Rg8 Rhd1 h1N Nc4 Ng3 Ng4 Nh5 Rab1 Nf4 Ne4+ Kd5 Nef2 Kc5 Ra1 Rh8 Rac1 Rh1 Ra1 Bf6 Bh6 Bd8 f8N Bc7 Qa2 Nd7 N6e5 Nf6 Nce3 Rg1 Qe6 Rf1 N3c4 Ne4+ Kc1 d2+ Kb1 d3 Ka2 Rh1 Kb3 Rh2 Rh1 d1N Ka4 Nde3 Rad1 d2 Bc3 Bb6 Ba5 Ba7 Bd8 Rg2 Be7 Rg1 Ka5 Neg2 Ka6 Ra8 Kb7 Bb8 Kc8 Rf1 Kd8 Re1 Rc1 d1N Rh3 Nb2 Rd1 Rg1 Ned7+ Kb4 Qf7 Nh5 Bg7 Nhf6 Rh8 Nh5 Ne6 Rh1 Rd3 Rd1 Bh6 Nd2 Bef8 Bc7+ Ke7 Rd8 Ng7 Rb8 Nde5 Kc5 Nc6 Rb1 Re3 Rd1 Re6 d5 Rd6 Ng3 Rd8 Ne2 Rd7 Bh2 Qe6 Nef4 N6e5
1bN1Nk2/q3B3/b1p5/1N4PB/pNQ3KR/R5b1/1P3pN1/n2nbNbb b - - 0 1 legal: proof: e4 a5 c4 g5 h4 d5 hxg5 dxe4 a4 b5 Rh3 bxc4 Rh5 Ra7 Rh1 Rb7 f4 e5 Ra2 h5 Rh2 e3 Ra1 e4 Rh1 Rb5 axb5 Rh6 Qf3 Re6 Qd1 Re5 fxe5 Bh3 Nf3 Bd7 Ng1 Bc8 Ke2 f5 d4 c3 g4 f4 e6 h4 e7 h3 b6 c6 d5 h2 g6 a4 d6 c2 b7 Na6 b8N Bb7 g7 Kf7 e8N Qh4 d7 Nc5 Na3 Ne7 g8N Ba6+ Qd3 Nb3 Nb5 Qh7 Qc4+ Nd5 Ra3 Na1 Nf3 Bc5 d8N+ Kf8 Nd2 Qa7 Ne7 Bb6 Nc8 f3+ Ke1 Bd4 Be2 Nc3 Nf1 Nd1 g5 Bc5 Bd2 c1B Bb4 Bd6 Rg1 h1B Rg4 Bc5 Rh4 Bd6 Nb7 Bc5 N7d6 Bb6 Nf5+ Bc5 Bd3 e2 N5e3 Bd6 Ng2 Be3 Bb1 Bg1 Kd2 e3+ Kd3 e1B Ke4 f2 Kf5 e2 Kg4 Bc3 Bg6 e1B Bh5 Be5 Bc5 Bb7 Na6 Bg3 Nb4 Ba6 Bb6 Bde5 Bd8 Bb8 Be7+
1B4nN/n2R1bB1/bP1R2rn/N4P1n/2r2nnk/1BB1BK2/1b5q/2r1Q2B b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 g4 Kg6 d4 a5 b4 c5 f4 e5 d6 h5 g5 e3 b6 h3 b5 c4 b7 h2 d5 e4 b6 a4 d7 a3 d6 a2 Qb3 c3 Qc2 h4 f5+ Kh5 g6 h3 g7 Rh6 Qa4 c2 Na3 Qc7 d8B Nc6 b8B Ba6+ Nc4 Na7 d7 Ba3 Bb2 c1R Be7 Rg6 Bd4 Bb2 Bb4 Kh4 Rb1 a1N Bg2 Nc2 Qa2 Qf4 Bbe5 Rc8 Qb3 Rcc6 Qd3 Qh6 Na5 Rc4 Qd1 Qh5+ Kf1 e2+ Kf2 e1N Bf4 Nf3 d8B+ Ng5 Ne2 Ne3 Bdc7 Nf7 Bb8 Nfh6 Re1 h1B Bbc3 h2 Ra1 Nd5 Bfe3 Ndf6 Nf4 Nfg4+ Ke2 Qg5 Qd2 Qh5 Bf3 Bg2 Rd1 h1N Qe1+ Ng3+ Kd2 Bf1 Bh1 Bd3 Ra3 Bc2 Ra4 Bb3 Rb4 N8f6 g8B Ba2 Be6 Nfg8 Bg7 Bb3 Rb5 Ba2 Rd5 Bb3 Bc5 e3+ Kd3 e2 Rd6 Ba2 Be3 Bb3 Nh3 Ba2 Ng5 Bb3 Nf7 Ba2 Qg1 e1N+ Kd2 Bb3 Nh8 Nd3 Qe1 Nf4 Bf7 Ba4 Bfd5 Be8 Rd7 Bf7 Rd6 Rc8 Bb3 Rc4 Bed4 Nf2 Ke3 Nfg4+ Kf3 Qg5 Qe5 Ngh5 Be3 Qf6 Rd7 Qd6 Qe4 Qd2 Qb1 Qh2 R1d6 Rc2 Qd1 Rc1 Qe1+
B3bK1b/6RB/qqr2PR1/B3BQ2/1Pb2n2/b1N2knB/r2q1B2/4Nq1b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 c4 d5 f4 e5 f6 h3 f5 h2 f7 d3 b3 d4 b6 d2 c5 a4 b7 a3 c6 a2 g5 d3 g6 Be6 g7 Nd7 b8B Nc5 c7 Nf6+ Kh6 Nd5 c8B Nf4 Na3 Qb6 Bd6 Bc4 Qh5 d1Q Nb5 d2 Nd4 Qe2 Ndf3 d1Q Bg2 Qdf1 Rb1 a1B Bh3 Ra2 Bd2 Be7 Bd7 Rc8 g8B Rc6 Kg7 h6 Qg6 h5 f8B h4 Ba5 Bc3 Bg2 h3 Ne1+ Ke3 Bb8 Ne4 Bh7 Ba3 b4 Ng3 Bc5+ Bd4 Qg5 e4+ Kf8 Kf2 Qg6 e3 Be5 Qd3 Bc8 e2 Bb7 Qd2 Ba8 Qa6 Qe6 Qe3 Ra1 Bc3 Ba7 Qeb6 Rd1 Ba1 Rd7 B1b2 Rg7 Bd4 Nc2 e1Q Ne2 Qd2 Rg1 h1B Ne1 h2 Bh3 Bg2 Qd7 h1B Nc3 Bgd5 Qc8 Bf7 Qe6 Be8 Qd7 Ngh5 R1g6 Ng3 Bc7 Nd3 Re7 Bh8 f6 Qd4 Qf5+ Nf4 Be5 Ke3 Reg7 Kf2 Ng2 Kf3 B7b6 Qd8 Bf2 Qdb6 Ne1+
bbNqRb1n/R3qrrR/2B1rkb1/nKR5/3B2q1/6N1/qR1PPQ2/1R6 b - - 0 1 illegal: No possible last move
1nb1B3/2r3R1/2Nq2P1/n4BKN/1rQq1B2/n1R1r1P1/5krn/b1qBB2B b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Ke2 Kf7 Ke3 Ke6 Kf4 d5 c4 h5 a4 b5 f3 d4 c6 b3 g6 d3 g3 d2 c7 b2 c5 Kd5 a5 Kd4 a6 e3 c6 h4 a7 e2 Nh3 e1R Qe2 d1Q Nd2 b1N Ne4 b4 Ra3 b3 Nd2 b2 Kg5 Rh7 f4 Bg7 f5 e5+ f6 e4 Rc3 e3 Nf4 h3 Nc4 h2 Nh5 Ne7 f7 Qd6 f8B Na3 Bd2 b1R Ne5 Rb4 Bh3 Rg1 Bd7 Rg2 Be8 Qa1 Rf1 h1Q Rf7 Qhc1 Qf1 Bh8 Bh6 e2 Rg7 e1N Qb5 Qab2 Bf4 Qbd2 Qc5+ Ke4 Qc4+ Q2d4 Bd2 Ba6 c8B Nf3+ Kg4 Bb7 c7 Nec6 Bhf4 Nh2+ Kg5 Na5 Nc6 Ba6 Bg4 Bc8 Rg8 Re7 Bd1 Rd7 Rg7 Rf7 Be5 Rf3 Bef4 Re3 Bc2+ Kf3 Bf5 Bd7 c8B Kf2 Ba6 Be6 Bb5 Bc8 Ba4 Na6 Bd1 Rab8 a8B R8b7 Ne5 Rc7 Bae4 Nb8 Nc6 Rg1 Bh1 Rg2 Rh7 Be5 Rg7 Qe4 Rb3 Ba1 Rc3 Qed4 Be1+
rb1B1Rbr/1q4b1/n1Bnn1P1/2qN1n1N/QN1NR3/1K1b1P2/8/N2r2Nk b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kf7 Kd2 Kf6 Kc2 Kf5 b4 c5 b6 a5 g3 h5 d6 e5 d7 e3 b7 Ke4 b5 c4 g4 a4 b6 a3 g5 e2 d5 e1N+ Kc3 h3 d6 a2 g6 h2 Bg2+ Nf3 Na3 h4 Bh3 Nd4 Be3 Qc7 d8N Na6 b8N Be6 d7 Bg7 b7 Nh6 Qe1 Bg8 Qe2 Nf7 Qe1 Nd6 Ndc6 Ne6 d8N Qe7 Kc2 c3 Kb3 c2 Qa5 c1Q Nb4 Qc5 Re1 a1R Qa4 Rd1 Nac2 Qf7 Bg4 h3 Nb8c6 Qd7 b8N Qb7 Bd4+ Kf4 Bf5 e4 Ne7 e3 Nd7 e2 Be4 Kg4 Rf1 e1B Bc6 Bd2 Ba1 Bf4 Bf6 Bg3 Nd5 Bf4 Ne2 Kf3 Na1 Kg2 Bh4 Bg3 N7f6 Be5 Re1 Bg3 Rhf1 h1N Ng1 h2 Re5 Bf4 Re4 Ng3 Nh5 h1B Be7 Ngf5 Bg5 Kh2 Be7 Bf3 Bh4 Kh1 Bg5 Nec7 Ne6 Be2 Nd4 Bd3 Bd8 Bg3 f3 Ne6 Rfe1 Nb5 R1e2 Bb8 Rf4 Nbd6 Ree4 Nh4 Rf6 Nhf5 Rf8
1K1NB3/1Pr1n2q/2N3R1/1NN2nNR/1b2brn1/Nrn1k1B1/q1r4P/4Qb2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 d4 Kd6 e4 c5 b4 a5 b6 f5 b5 g5 b7 c4 b6 f3 Kg3 f2 Be2 f1N+ Kf2 g3+ Kf3 a4 Ra3 g4+ Kf4 c3 Nh3 c2 Ng1 g2 Nf3 g1N Rc3 g3 Rc5 g2 Qe1 a3 Bb5 a2 Na3 Ra4 Bb2 Nd7 b8N c1R b7 a1Q Bc3 Qa2 Na6 Ne3 Ba1 Ndf6 e5+ Ke7 d6+ Ke6 d7 Qe7 Bc3 Rh7 Ba5 Rh3 Bc7 Qh7 Bb8 Rc2 Bd6 Kf7 e6+ Kg6 Ke5 f4 e7 Ne2 e8N Rac4 d5 g1R Bc7 Rf1 d6 Kh5 Bb8 Kg4 Rg1+ Rg3 Nec7 Be7 d8N Bf5 d7 Be4 Nf7 Bd6+ Ke6 Ne7 Nd4 f3 d8N Kf4 Rh5 f2 Be8 N3f5 Ncb5 Rb3 Rg6 Ke3 Ng5 Bb4 Bg3 Ng4 Kd7 Rc6 Nc5 Rc8 Qa1 Nc3 N4c6 Rb8 Kc7 Rc8+ Kb6 Rc7 Ka7 Rg1 Rg8 Rg2 Kb8 f1B Qd1 Rgf2 Rg6 Rf4 Qe1+
1q2r3/R5kn/r7/1qNR2BP/1NPrQ2K/1Bp2B2/B2BB1q1/1bb1nnb1 b - - 0 1 illegal: No proof kernel
K4n2/B2k2p1/RB4PB/BbrPn3/1QN2q1B/rN6/R1q1bb2/1Bnr2q1 b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Qd6 Bd3 Qh6 Bf1 Qxh2 Ke2 e5 Ke3 h5 b4 c5 g4 a5 d4 a4 f4 c4 f5 a3 b6 h4 b7 h3 d6 c3 g5 a2 g6 c2 d7+ Kd8 f6 Nc6 b8B Ra5 b5 Bd6 b6 Rh5 b7 Bc5 f7 Nf6 f8B Nh7 Qg4 Ra3+ Bd3 Bb6 Bb4 Nf8 Bcd2 c1N Ba7 Qg2 b8B h2 Ne2 Ba6 Bbc3 Bb5 Ba5 Qf1 Rg1 h1B Rg2 Qd1 Be1 Qc2 Nd2 Rg5 Rf2 Bf3 Nc4 Ke7 d8B+ Ke8 Nf4 Be2 Ne6 Kd7 Bbc7 Rh5 Bed2 Bc5 Bcb6 Rg5 Rb1 a1Q Bf6 Qab2 Ra1 Qb4 Ra2 Rh5 Bh4 Qba4 Rf6 Rg5 Kf2 e3+ Kg3 e4 Kf4 Qcb3 Bb1 Qc2 Qh5 Rd5 Qg4 Ne5 Kf5 Bd3 Kf4 e2 Kf5 e1R Bh6 e3+ Qe4 Rd6 d5 e2 Nd4 Rd1 Nb3 e1Q Kf4 Qh1 Qe1 Bf2 Qb4 Rc6 Re6 Bg3+ Ke3 Rc8 Kd4 Be1 Rc6 Be2+ Kc5 Qf1 Bbd8 Bg3 Kb6 Qg1+ Kb7 Bf2 Ra6 Rc6 Bdb6 Rc5 Qc3 Qb4 Ka8 Qa4 Qd4 Qb4 Qb2 Qbd2 Qc3 Qf4 Qb4
2bBB3/NQ1r1q1B/P1nRpNRB/8/3q3b/Br1nBr2/3kPbK1/r3r3 b - - 0 1 illegal: No possible last move, all moves rejected
4qb2/n1p2R2/R4P1N/BNqNNk2/2n1bq1P/1KN2q2/B2NQ3/3r1qbr b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 d4 Kf7 Kd2 Kf6 Kc2 e5 b4 g5 h4 a5 f4 g3 f5 a4 d6 g4 d5 e3 b6 e2 d7 e1Q b7 g2 b5 a3 d6 g3 b6 e4 Bd2 a2 Nf3 g1Q Ba5 g2 Kb3 e3 Nc3 e2 Nd2 Nc6 b8N Nh6 b7 Qc5 Na6 g1B b8N Na7 Nc6 Ng4 Ne5 Qe8 d8N Qef2 d7 e1Q Qe2 Bb7 Ne6 Qf3 d8N Qef2 Nb4 Ne3 Nd4 Nc4 Ndf7 Be4 Nb5 Rh7 Nh6 Rd7 Bh3 Rb8 Rf1 a1Q Rh2 Q2e3 Bg2 Qef4 Nd5+ Kg7 Rf2 Qf1 Bh1 Kh7 Rhg2 Rbd8 Rg6 Rg7 Ra6 Rg2 f6 Rh2 Rg2 Rh3 Rg8 Rd6 Bg2 Rh1 Bh3 Rd8 Be6 Rd7 Nd3 Rd6 Rh8+ Kg6 Rh7 Rd7 Bg8 Rd6 Rf7 Rd8 Ng4 Kf5 Nde5 Rd6 Nh6+ Ke6 Bh7 Rh3 Ne7 Rh1 Nb1 Bc6 Bg6 Rd1 Nd2 Bf2 Bb1 Bg1 Bb6 Be4 Nd5 Q4e3 Ba2 Qef4 Ng8 Kf5 Ba5 Q3h3 Nb1 Qhe3 Nd2 Qef3 Nh6+
5b1B/Nn1B1Nq1/bB4B1/2B1q2n/1qRr3B/P1Qr2Pk/q2pR1nb/7K b - - 0 1 illegal: No proof kernel
5r1k/r1n3Nq/3R1bN1/2Nr2NP/b1B4q/B1qNp2N/2bQ2P1/n1K2bR1 b - - 0 1 illegal: No proof kernel
bR2Rb2/R6N/K2Q1qq1/P2B1r2/PqRn3b/p3B1n1/1nRN1R2/2b2rk1 b - - 0 1 illegal: No proof kernel
K3N3/BR1N1BnP/NbkPq3/Nr2r1q1/5qN1/1nqN1bp1/2Rb1r2/1Q6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Ke3 c4 h5 c3 e6+ Kc7 d6+ Kb7 d5 a4 Kd4 g3 Kc5 g2 e7 g4 e8N c2 b6 g3 b5 f4 h6 a3 h7 a2 Nd2 f2 Rh2 f3 Nh3 g1Q Bc4 f1Q+ Nf2 Bg4 Rb1 Ne7 d7 a1Q d6 Bh6 Rb3 Nbc6 Bf7 Ra5 Nc4 Qc3 Be3 c1B Nd3 Bd2 Qb1 Nf5 Rb2 Qg5 d8N+ Ka8 Bf2 Ncd4 Nc6 Kb7 Nce5 Nb3+ Kd5 Bh5 Ng4 Qh3 Bc5 Qgf1 Bg1 Be3 Rhc2 Bd2 Bc5 f2 Bd4 Qc1 Bc5 f1R Be3 Kb8 Kc6 Ng7 b7 Rf8 Bg1 Rf2 Kb6 Qf4 Kc6 Ka7 b8N Be3 Nd7 Bb6 Qa1 Re2 Qb1 Re5 Be3 Qg5 Bd4 Qcf4 Bg1 Bf2 b6+ Ka6 b7 Rab5 Kc7 Bb6+ Kc8 Ka7 b8N Ka8 Na6 Ka7 Ngf6 Bf3 Bc5 Qe6 Ng4 Re3 Bg8 Rf5 Bf7 Re2 Be3 Rf2 Bd4 Rfe5 Bc5 Ka8 Be3 Bd8 Ba7 Bb6 Qg1 Be3 Nef6 Rbc5+ Kd8 Kb7 Rb1 Kc6 Kc8 Nd2 Kb8 Qg6 Ka8 Qfe4 Rb8 Nb3 Qh2 Rb5 Qh1 Bb6 Rb7 Bd2 Qb1 Qg5 Ne8 Qef4 Na5+
2Q2K2/k1p1nP1b/1rR2R1R/2bRNP2/1r2RR2/n5q1/B1Nn1qr1/2B3nb b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 Ke2 Kd7 Kf3 h5 Kf4 a5 Kg5 e5+ Kg6 e4 Kf7 e3 g4 c3 f4 h3 b4 h2 d4 a4 g5 c2 g6 e2 b6 Kc6 b7 Kb6 g7 e1Q f6 a3 b5 h4 d5 a2 d6 h3 d7 Bc5 Nf3 Nc6 b8R+ Ka7 Ne5 Rh6 Na3 Na5 Bc4 Ne7 g8R Qf2 Rg4 Nb3 Rb6 Nd2 Rc6 Rb8 Bd5 Qh8 d8R Bf5 Rd7 Bh7 f5 Rb6 Re4 Rh4 Bb3 Qd8 Rd5 Qd6 Kf8 Rg4 f7 Rg2 Rb1 a1N Ba2 Qg6 Rf1 h1R Rbb4 Rhh2 Rh1 Rg4 Rf4 Rhg2 Rbe4 h2 Qf3 Qd6 Qg3 Rh4 Qg6 Rhg4 Qe6 Rh4 Qc8 Rhg4 Bb2 c1N Nc2 Ne2 Bc1 Qg6 Rf6 Ng1 Rc6 R4g3 Rf6 Rb3 Rc6 Qgg3 Rf6 Rb8 Rc6 Rb4 b6+ Ka8 b7+ Ka7 Nd4 Nc2 Rf6 Na3 Nc2 Ra8 b8R Rb6 Rc6 Rb4 Rbb6 Rb8 Rf6 Rb7 Rbc6 R7b6 Rh4 Nh3 Rf1 h1B Rh5 Ng1 Rhh6 Qe1 Rf3 Qef2 Rff4
3B2R1/1Pn5/1k2qN1P/4RR1b/1KnRQnp1/3r1Bq1/2rR1NRb/2qbn3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 g5 Kc3 c5 b4 Kc7 h4 a5 e4 f5 d6+ Kb6 e5 f3 d5 a4 e6 g3 d7 g2 d6 f2 e7 f4 e8R f3 h5 c4 h6 a3 Qa4 a2 Qa3 Qe7 d8R Bg4 d7 Na6 Rh4 Nc7 Rh3 Rc8 Nd2 Bh5 Be2 f1N Qa4 f2 Rf3 g4 Rf5 Ne3 Ne4 f1B Nf6 Qe6 Nh3 g1Q Bf3 Qg3 Nf2 Be2 Ba3 Rh7 Rg1 a1N Rg2 Bd1 Qa8 Rf7 Qe4 Bd6 Bc1 Ne7 Bd2 Nec2 Bg5 Nb3 Rg8 Na5 Rde8 Qh3 d8R Bh2 Rd2 Qg3 Red8 Ne1 R8d4 Ng6 Bh4 Ka7 b6+ Ka6 b7 Kb6 b5 Nf4 Rgg5 Rd7 Kb4 c3 Rg8 c2 b8R+ Nb7 Ra8 c1Q Ra5 Nd6 Bg5 Nc4 Re5 Rd5 Bh4 Kb7 b6 Kc6 b7 Kb6 Rf5 Rd6 Rdd5 Rd7 Rde5 Rd3 Rad5 Ra8 Rd4 Ra2 Ne8 Rc2 Bd8 Qd7 Nf6 Qc6 Qe2 Qe6 Qe4
BQ5n/3K4/br4B1/1n1NB3/1n1rPB2/n3Pkb1/BRBp4/1nrqRN1r b - - 0 1 legal: proof: g4 e5 d4 c5 dxc5 h5 b4 hxg4 f3 e4 fxe4 a5 Bf4 axb4 Bh6 Ra6 Bc1 Ra8 Kf2 Ke7 Ke3 Kf6 Kd4 d5 a4 b5 c4 g5 h4 b3 a5 g3 h5 b4 e3 g4 h6 Kg5 Ke5 f5 a6 g2 c6 d4 c7 f4 a7 f3 h7 f2 c5 d3 c6 g3 Bb2 Nh6 Nc3 Bd6+ Kd5 Na6 Qf3 Nf7 Nb5 Rb8 a8B Rb6 Be2 f1R Rb1 Rd1 Be5 b2 Nc3 b3 Bf1 Qd7 Nge2 g1R Rh2 g2 Ng3 Rd2 Re1 b1N Qf2 Kg4 Bf4 Rd1 Qb2 Na3 Qb1 Rd8 h8B Rh1 Bhe5 g1N Rb2 Nh8 Be2+ Nf3 Nf1 d2 Bd3 Rc1 Bc2 Bb7 c8B Nd4 Bg3 Kf3 Bgf4 Qh7 Bf5 Ndb5 Ke6 Qh5 c7 Nb4 c8B Ba6 Bg6 Bb8+ Ke7 Rd4 Nd5 Qg4 Be6 Qh5 Ra2 b2 Kd7 Qg4 Qa1 b1N Rb2 Kg2 Qa2 Qd1 Qc4 Bd6 Qc7 Kf3 Qc8 Be7 Qb7 Bh4 Qb8 Bg3 Bg4+ Kg2 Be2 Kf2 Bc4 Kf3 Ba2
n2RK2R/n3pRQn/n2P4/1N3nrq/2R2Nb1/2r2PB1/n3k1Bq/RRb5 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 b4 c5+ Kc4 Ke5 f3 Kf4 d4+ e3 b6 h3 Kb5 h4 b7 c4 g5 h2 g6 c3 d6 h3 d5 c2 g7 a4 d7 a3 d6 a2 Be2 Nc6 b8R Ra5+ Kc4 Rg5 b5 Qa5 d8R Bg4 b6 Nf6 g8R Nh7 b7 Na7 Kd4 Bh6 Ba3 c1N Bf1 e2 Bg2 e1N Bc5 Ned3 Rde8 Nb4 Bb6 Na6 Red8 Nc7 Rg7 Na8 Rbc8 Kg3 b8R Kf2 Rc4 Rg8 Rd7 Rc8 Na3 Rc6 Rb1 a1N Rf7 Na2 Ne2 Nb3+ Ke4+ Qc5 Nb5 Rc8 Rg1 h1N Nf4 h2 Rd8 Rc7 Qd3 Rc8 Qc3 Ng3+ Kd3 h1Q Qg7 Nf5 Ke4 Rc6 Rh8 Qh4 Rbd8 Qh2 Ra1 Rc7 Rgb1 Rc6 Ba5 Rc8 Bc3 Rc6 Be5 Rc7 Nd5 Ke2 Bg3 Rc6 Ke5 Rc8 Nc7 Qa5 Nb5 Nc5 Na3 Rc6 Nb5 Na6 Ke6 Rc5 Kd7 Rc8 Rcb4 Rc3 Ra4 Rg6 Rc4 Bc1 Ke8 Rg5 Nf4+ Ke3 Ng6 Ke2 Na3 Qe5 Nb5 Qh5 Be1 Qeh2 Bg3 Kd2 Nf4 Kd1 Ng6 Ke2 Nf4+
4nRB1/1K2BnB1/4kn2/8/Bb1pNBR1/1BN1b2q/bP2P1r1/n2Qr1bq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 c4 a5 h4 f5 h5 d5 e6 g5 b6 g3+ Kf3 g2 b7 g4+ Kf4 d3 Ke5 a4 c5 d2 c6 a3 c7 d4 h6 g3 h7 a2 Rh3 f4 Qc2 d1Q Qd3 f3 Bg5+ Nf6 Nc3 f2 Rh4 Rg8 h8B Qd7 Nh3 g1B Bg2 f1N Bd5 g2 Bb3 Na6 b8B Ne3 Rg4 Nf5 Nf2 Nh6 Nfe4 Be3 Bg7 Qh1 Rf1 g1B Qd1 a1N Rf2 Bb7 c8B Nc7 Bf4 Nce8 Bd6+ Kd8 Ba3 Bb4 e7+ Kc7 Rf3 Bd5 Ba6 Qc8 Bac4 Kd7 Rf1 Nc7 e8B+ Ke7 Bd7 Nce8 Bda4 Bf7 Rh4 Qch3 Rg4 Rc8 Bd5 Rc6 Nb1 Rc2 Nbc3 Rc1 Be6 Nh5 Kd5 Nhf6+ Kc6 Rb1 Qd3 Re1 Bed5 Be6 Kb7 Nf7 Qd1 Bf5 Nf2 Bb1 Nfe4 Ba2 Bh8 Rg6 Bg7 Ne5 Bg8 Nf7 Rh4 Rg2 Rg4 Nd5 Rf3 Ke6 Rf1 Ba5 Baf8 Bb4 Be7 Ba3 Bfd6 Bb4 Bh7 Nh8 Rf8 Nf7 Bh2 Bf4 Bg8 Bfe3 Bc2 Ndf6 Bg3 Nh7 Bf4 Nhf6 Bcb3+
N1R1BNn1/KN1nb1b1/1N2Pr1Q/2B2qp1/1Rb2nP1/2rN4/6n1/3k1Nqb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 h4 Qb3 Rh6 Qh3 Rh8 Qg3 hxg3 h4 Kd7 b4 Kd6 e4 Ke5 Ke2 Kd4 b6 g5 h5 f5 b7 a5 h6 c5 b5 g2 d6 a4 b6 c4 d7 c3 e5 a3 h7 a2 Nf3+ Kc4 d4 Kb3 Kd3 g1B d5 c2 d6 Ra7 Ne1 f3 Ba3 c1Q Bc5 f4 Nd2+ Kb2 e6 f2 Kd4 f3 Nd3+ Kc2 Rb1 a1N Rb4 Qc7 d8Q Ra3 d7 Kd1 Qf6 Be7 d8N Rc3 Qh6 Nd7 b8N Bb7 Na6 Bd5 b7 Qa5 b8N Nb3+ Ke3 Nd4 Nb7 Qca1 Nc7 Ne2 Na8 Nf4 Kd4 Bh2 Bg2+ f1B Rg1 f2 Bh1 Bc4 Bc6 Bd5 Rg2 Be2 Nf1 Bef3 Rg1 Bh1 Rg3 Bc4 Rg2 Ne5 Nd7 Bg1 Ndb6 Nd7 Be4 Qb1 Bg6 Qaa1 Be8 Qc2 Ng3 f1N+ Rf2 Ne3 Nf1 Bh2 Rg2 Qcb1 Rc2 Neg2 Qf8 Ngf6 Qh6 Rf8 h8N Ng8 Ng6 Rf6 Nf8 Qa5 Bd6 Qf5 Bc5 Bg3 Bd6 Ne5 Kc5 Nd7+ Kc6 Bf2 Bc5 Bd4 Kc7 Qc1 Kc6 Qe3 Kc7 Qg1 Kc8 Ne5 Kb8 Nd7+ Ka7 Rf7 Re2 Bg7 Re5 Rf6 Rd5 Ne5 Rd8 Nd7 Rc8
1qb2n1k/N4n2/n2bpN2/5NqQ/NNRq3B/KB1b2b1/2R1PPq1/4r1N1 b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 Kf7 b4 Kg7 c4 d5 Kc2 h5 Kb2 d3 b6 d2 b7 a4 b5 d4 b6 a3+ Kb3 h4 g6 d3 c5 e6 c6 g2 c7 g3 Qc2 d1B Be3 a2 Nc3 d2 Na4 h3 Rc1 a1B Ka2 h2 Qb2+ Nf6 Rc2 Bd6 Qb5 Bae5 Bg5 Na6 b8N Nd7 b7 Nf8 Nd7 Rg8 b8N Kh8 Rc4 Bc2 Nf6 d1Q Bh4 Qd4 Nc6 Bd3 Nb4 Qe8 Qd5 Qb5 Qf3 Qb8 Ka3 Rg7 Qh5+ Rh7 Nf3 g1N Bg2 Nh3 Ng1 Ng5 Bd5 g2 Rc2 Bg3 Bb3 Nf7 Rc4 Bd7 c8N Rh6 Na7 Bc8 Nf3 Rh7 Rhc1 g1Q R1c2 Qg2 Ng1 h1Q Ne8 Qhh3 Ng7 Qhg4 Nf5 Qg5 g7+ Kg8 Qf3 Qc3 Nh3 Qg6 Be7 Qd4 Qg4 Rh4 Qh5 Qh6 Bg5 Kh7 g8N Kh8 Nf4 Rh2 Bh4 Rh1 Nh3 Rd1 Ng1 Re1 Qg6 Qd2 Nf6 Qg5 Qh5+
bnrb3K/4nR2/4N1NP/p1r1BB1Q/2qpB3/b4Rqn/q1BP2kB/3B4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 b4 c5 bxc5 exf4 Kf2 Ke7 c4 Ke6 e4 Ke5 h4 d5 b6 g5 c6 f5 c7 a5 c5 g3+ Kf3 g2 c6 Bh6 h5 Na6 b7 Bg7 b8B Qe8 h6 Be6 Nh3 g1B Nc3 Bb6 Nb5 Ne7 Ra3 Qf7 Bd3 Rc8 Nd4 Bf8 Bc2 Qg8 Rf1 g4+ Ke2 g3 Kf3 Bd7 Ne6 g2 Rc3 Qf7 Ba3 d4 Bd6+ Kf6 e5+ Kg6 Qb1 Kh5 Qd1 Kh4 Be4 Rd8 c8B g1N+ Kf2 f3 c7 Be8 Nhf4 Bc6 Ng6+ Kh3 Bd7 f4 c8B Bb7 Ba4 Rd7 Ra3 Bd8 Bac2 Rc7 Ng7+ Nf5 Qe2 Qd5 Bd1 Rc6 e6 Qa2 e7 Kh2 e8B Bfe7 Bec2 Nh3+ Ke1+ Kg3 Bbc7 Rc3 Bc6 Rc4 Qe5 Kg2 Be6 Rc8 Rb3 Nh4 Qh5 Nb8 Bg4 Rc3 Ne6 Ba8 Bd5 Nf5 Rb7 Ne3 Bgf5 Bf8 Bc6 Nd5 Ra7 f2+ Ke2 Rc4 Kd3 f3 Bh2 Ba3 Ke4 Rc3 Bcd6 Rc5 Rf7 Ne7 Bd5 Ng1 Ke5 Nh3 Rh1 f1Q Kf6 Qd3 Kg7 Qe3 Kh8 Qe1 Bde5 Qg3 Bdb3 f2 Bd5+ Qf3 Re1 f1Q Bde4 Qd3 Rf1 Qdc4 Bed3 Qf4 Rf3 Qg3 Bde4
6Nq/3B3R/2qrp2n/2B1Q2P/1B3rP1/1Bbp2rk/KnN4R/2bB1bBq b - - 0 1 illegal: No proof kernel
q1q1Nbn1/4rbB1/3P4/8/B3p1nk/Q1pRrq2/PR2NR2/R1r1RKRb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 g4 Kf7 d4 Kf6 f4 b5 d6 c5 d5 h5 d7 e5 d6 b3 Bc4 b4 Ba3 e4 Bb5 c4 Qf3 b2 Ne2 h3 Ba4 b3 Kf1 h4 Nbc3 h2 Nb5 h3 Nc7 b1R+ Bc1 b2 Qa3 Qe8 d8R c3 Rg1 h1B g5+ Kg7 g6 Kh6 f6 Kh5 f5 h2 g7 Nc6 f7 Be6 f6 Kh4 Rd7 Qc8 Ne8 Ra7 Rb7 Ne5 Rg3 Ng4 Rd3 Bb3 Rb4 Re7 Rb6 Bd1 Bh6 Rc1 Rb3 b1Q Rb2 Re6 Be3 Re7 Bd4 Qc2 Be5 Qb3 Bd4 Qbb8 Be5 N8h6 g8R Qa8 Rg7 Ng8 Bd4 Nf2 Rg1 Ng4 Be5 Kg5 Bd4 Rh3 Be5 Re3 Bd4 Bh6 f8R Kh4 f7 Bg7 Be5 Bh6 Bg7 Bb3+ Rd1 N8f6 Rh8 Ng8 f8R Bf7 Re1 Bf3 Rd2 h1Q Rd3 Qh3+ Rg2 Qg3 Rg1 Bh1 Rh7 Bb3 Rf2 Qf3 Be5 Bc4 Rf7 Bf8 Bg7 Bb3 Rf5 Bc4 Rb5 Bf7 Rb2
4Bnrr/RrpNKBp1/4Q2q/b5k1/4bNRq/2BqB3/PPB2B2/2n3n1 b - - 0 1 illegal: No possible last move, all moves rejected
4r2q/p3Br2/n2R1bk1/RK1P1P2/NQ1RnpBR/1R2nbN1/4n3/3rn1R1 b - - 0 1 illegal: No possible last move
1k1N1n1n/N2rP3/b2rN3/K1bNB2R/b1Bpb1NP/2R4n/1Q2p1r1/1q4N1 b - - 0 1 illegal: No proof kernel
1B5b/3N1Nrp/P1Nr3Q/1b1b1pNn/1nP5/1k1q2NK/2b2bN1/1R1q1BR1 b - - 0 1 illegal: No proof kernel
1B1R4/r1n1b2K/1n1kPR1b/1p1Nq3/1b1R1N2/1rR1rb2/R4P1p/R4BqQ b - - 0 1 illegal: No proof kernel
6BK/N1Q3r1/R1pB4/1qBB1PrB/2P2N2/n1pr3b/r2q2q1/2bkBn1R b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 h4 g5 hxg5 d4 Qc2 Bb7 Qb3 Bc8 Qc3 dxc3 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 f4 e5+ Ke3 Kc5 d4+ Kb4 g6 Kb3 b6 Kc2 b4 h4 d5 c6 b5 a4 d6 h3 g5 a3 g7 a2 d7 h2 b7 Rh7 g6 Nf6 g8B Nd5+ Kf2 e3+ Kf3 e4+ Kg4 e2 Kf5 e1R b6 e3 g7 e2 Kg6 Rd1 Be3 e1Q Bc5 Na6 b8Q Qd2 b7 Ne3 Be2 Nc7 Bh5 Nb5 Ne2 Nf1 Qc7 Ra5 b8B Na3 Bd5 Qg5+ Kf7 Qg2 d8B Bh3 Bh4 Be7 Kg8 Bg5 Be1 Bh6 Kf8 Bg5 g8B Rg7 Qa7 Bh6 Bbd6 Qg5 Qc7 Qe5 Rg1 h1Q f5 Qg2 Nf4 Ra7 Rh1 Rg5+ Qg7 Rc7 Bge6 Re7 Kg8 Rd7 Kh8 Kc1 Qf6 Rdg7 Bg8 Kc2 Bf8 Qb8 Bfd6 Qb5 Qd4 Qc1 Qe5 Rd3 Qe7 Qcd2 Qc7 Qde2 Nd2 Qef2 Nb3 Qd2 Rd1 a1R Nd4+ Kb2 Rc1 Ra2 Rc2+ Kb1 Rb2+ Kc1 Rb3 Qb4 Nb5 Qa4 Na7 Qb5 Ne2+ Kd1 Rb4 Rgg3 Ra4 Bf4 Ra6 R3g5 Bh4 Qe1 Bhf2 Bc1 Bh4 Qd2 Be1 Rdg3 Nf4+ Rf3 Bhf7 Rd3 Bh5+
N3N1Qn/1r1q4/p1q5/bBq1p1kb/n1R1rqN1/1K4N1/P1R3P1/2N1n1NB b - - 0 1 illegal: Other
3RN2R/2Rb1pnp/Nbq4b/1q2Pk2/n2rn3/Q1r1RK2/1P2R1B1/R1B1b3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 e4 Ke6 g4 c5 d4 a5 g6 c3 e5 a4 g7 c4 b6 f3 g5 a3 g6 c2 b7 c3 d5+ Kf5 d6 a2 d7 Nc6 b8R Qc7 d8R Bc5+ Kg3 f2 Bd2 c1B Rh2 c2 Rb3 Ra4 Nc3 Nce7 Nb5 Bd7 Nh3 Bb6 Bg2 f1Q Nf2 Qc6 Ne4 Rd4 Re3 Nf6 Nc7 Qfb5 Nc5 Ne4+ Kf3 Re8 g8R Rf8 Ba5 Bd2 g7 c1B Qb3 Be1 Rh8 Re8 g8R Rf8 Rd3 Bh6 N5a6 Re8 Bd2 Rf8 Ra8 Rc8 Ne8 Rc7 Rc1 a1N Qa3 Nb3 Re3 Nbc5 Ra7 Na4 Ra1 Qg6 Rb7 Rc3 Rc7 Qgc6 Rf8 Kg5 Bc1 Nf5 Bf1 Ng7 Re2 Kf5 Bg2 Nh5 Nf6 Ng7 Rd8 Bg3 Ne8 Bf2 Nb8 Be1 Na6
3n2qn/1kP1N3/2nR1KN1/2P1Rp2/Bb2R2p/q1q1r1QR/n5r1/BbR4R b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 h5 Kf3 f5 g4 d5 e4 Kd7 b4 Kc7 c4 a5 b6+ Kc6 e5 a4 b7 d4 g5 h3 g6 h2 e6 h4 g7 d3 e7 d2 e8R a3 Qe1 d1N Re4 a2 Qg3 Nh6 g8R Nf7 Ne2 Nc3 Bb2 Be6 Rg6 Rg8 b5+ Kc7 c6 Nh8 Rh6 Bb4 c5 Ra3 Rf6 Bc4 Rd6 Bd3 Bg2 Rb3 Rc1 h1N Re5 Na4 Nbc3 Nf2 Rh1 Ra3 Rac1 Ng4 Ba1 Nh6 Re4 Bb1 Bf1 Na6 b8R N6f7 Re5 Qf8 Rbe8 Nd8 b6+ Kc8 c7 Nb8 Re4 Nc6 R8e5 Kb7 Rh3 Rg4 Bg2 Qg8 Bh1 Bd3 Nd5 Nc3 Ne7 Bb1 Bg2 Ka6 b7 Ka7 Bb2 a1Q b8R Na2+ Bc3 Qb2 Rb6 Rg6 Rdd1 Rb3 Rdh1 Qa3 Ra6+ Kb7 Bf1 Na7 Rd6 Nac6 Bg2 Bd3 Ba1 Bb1+ Kf2 f3 Nf4 Rg7 Nfg6 Re3 Bf1 Qc3 Bb5 Qa3 Ba4 Qc3 Kf1 f2 Kg2 f1Q+ Kh2 Qfd3 Kg2 Qa3 Kf2 Qdc3 Kg2 Bd3 Kf2 Re2+ Kf3 Bb1+ Kf4 Re3 Kg5 Nd4 Kf6 N4c6 Nf4 Rg5 Nfg6 Rg4 Qf3 Rg2 Qg3
2KbB3/NPQ4b/2n2r2/2q2R1N/qPrp1R2/B1R1R1Rq/2qRn2p/2k4n b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 a5 c4 h5 g4 d5 f6 h3 f7 h4 b6 h2 b7 d3 g5 h3 f5 d2 f6 Ke3 g6 a4 g7 a3 Nc3 a2 Nge2 d4 Ng3 Bf5 Nb5 Nh6 g8R Qc8+ Kb6 e5 c5 e4 c6 Bh7 c7 Be7 f8R Nf5 f7 Nc6 Qc2 Ra4 Na7 Bd8 Bb5 Rc4 Nh5 Ng3 Rd1 h1N Rg7 Ne2 Rg3+ Kf2 Re8 h2 f8R+ Qf5 Rb1 a1Q Qc3 Qf3 Rf4 e3 Re5 Qa2 Ref5 Qa4 Re1 d1Q Bd2 Qdb3 Rbd1 Rf8 Qa5 Qd3 Bb4 Rf6 Ba3 Qdc2 Rd3 Rb4 Red1 Rc4 R1d2 Ke1 Rc3 Ng1 Rb3 e2 Re3 Qf1 Ka6 Qh3 c8R Qb4 Qc7 Qf8 Rdd3 Qc5 Rc3 Kd1 Rcd3+ Kc1 Rd2 Qd5 Kb6 e1Q Ba4 Qed1 Bb5 Ne2 Ba4 Rf7 Bb5 Nb4 Be8 Rf6+ Bc6 Be7 Qe5 Qa4 Kc7 Rc2 Kb8 Bd8 Be8 Rc7 Qe7 Qdc2 Qg7 Rc5 Rc7 Rc3 Kc8 Qc4 Rc5 Nc6 Qc7 Qcb4 Rb5 Qe7 Rb3 Rc4 Rbc3 Qc5 b4+
B5q1/1Pbr1p2/1P2BBrB/2pq1R2/Q2r1N2/N2r2B1/B3bnk1/RKb3n1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Ke7 e4 Kf6 d4 Kg5 Kd2 h5 Kc2 a5 b4 c5 d6 a4 d5 h3 d7 Kh4 g5 Kg3 e5 a3 d6 f3 b6 a2 b5 h2 g6 h4 g7 f2 e6 h3 e7 Ra6 e8B Nf6 g8B Bh6 Bb2 Nc6 Na3 Ng4 Rc1 a1B Bc4 f1R Be6 Nd4+ Kb1 Rf3 Bh7 Nf2 Qa4 Kg2 Rf1 Bc1 Ne2 Rd3 Bc3 Qg5 d8B Qg8 d7 Nf3 Be5 Ng1 Bg3 Be5 Bg5 Bc7 d8B Bd7 Bg6 Rh4 Bdf6 Rhd4 Bh6 Bc8 Ba2 Bg4 Bf5 Bh5 Bfe6 Ra7 Nc3 Be2 Nd5 Ra6 Bc6 Ra7 Ba8 Ra6 b7 Rd6 b6 Rd7 Bf8 Ng4 Qc6 Bg5 Bb3 Nf3 Rd1 Bgf4 Rhe1 h1Q Bh6 h2 Bhg7 Ng1 Kc2 Be3 Ra1 Bc1 Ba2 Kh3 Qa4 Qf3 Bf4 h1R Rf1 Kg2 Kb1 Rh6 Bg3 Rg6 Bh6 Qe4 Rf5 Nf2 Bfg5 Kf1 Nf4 Qd5 Nh3 Kg2 Be7 Nd1 Bf6 Nf2 Nf4+
r1b2nq1/1P2p2k/2BB2R1/1N1r1qB1/1P3Nb1/b2p1B1R/B1B1nK2/r3r1Q1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 b4 Kf7 c4 Kg7 g4 h5 f4 d5 b6 a5 g6 d3 b7 d4 f5 a4 g5 d2+ Kf2 h4 c5 h3 c6 a3 c7 h2 Bg2 a2 Nh3 d3 Nc3 Ra6 Bf3 Ra5 Nf4 Nf6 Nb5 Qe8 Qg1 Nd5 f6+ Kg8 g7 d1B f7+ Kh7 Be3 Nd7 Bc5 Nc3 Bd6 Ne2 Rb1 a1R g8B+ Kg7 g6 e3+ Kf1 Kh6 g7 Ra8 Rc1 Qd8 Rc6 R8a5 Na3 Rd5 Nb5 Qe8 Bh7 Qd8 g8B Bg7 Bhe4 Bb2 Kg2 Ba3 f8B+ Kg5 Bg7 Nf8 Bf6+ Kh6 Bg5+ Kg7 Rb6 Qd7 Bf7 Qf5 Be8 Kh7 Bc6 Rd4 Bed5 Rg8 Bb3 Rd5 Bc2 Rh8 Qf2 Rg8 Rf1 Rh8 Qg1 Rg8 Rf2 h1Q+ Kf1 Qh5 Rh2 Qf7 Rh1 Rh8 Rh3 Qg8 Bh6 Qf5 Ke1 Nc1 Ra6 e2 Kf2 e1R Rb6 Bd7 c8B Be6 B8d7 Ne2 Be8 Bc8 Bf7 Re5 Ba2 Rd5 Be4 Nd4 Bg2 Bg4 Bf3 Ne2 Bg5+ Bh5 Ra6 Bd7 Rg3 Qg7 Bc5 Ne6 Rb6 Ra8 Rh3 Bc8 Be8 Nf8 Rg6 Qgf7 Bc6 Qg8 Bh4 Bg4 Bd6 Qe5 Bf6+ Qh5 Bh4 Qf5 Bg5+
N4R1Q/Pq2Br2/qr2q1n1/1N1pnkN1/7b/Ppq1N2K/3nB3/1b2NNR1 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 h4 gxh4 d4 cxd4 g4 Kf7 c4 Kf6 f4 b5 Kf2 d5 Kg2 h5 a6 e5 c5 b4 a3 b3 c6 d3 a7 e4 c7 e3 Kh3 e2 Nf3 e1N Nbd2 Qe8 Be2 Ne7 Nf1 d2 Rg1 Rh6 Ra2 Ba6 c8N Ng6 Nd6 Bd3 Nb5 Qe6 Ra1 Nc6 g5+ Kf7 Qc2 d1Q Qc3 Qd2 Qh8 Be7 Bb2 Qde3 Bf6 Rf8 Rc1 Bd8 Be7 Nce5 Rc8 Bb1 Rb8 Qa6 f6 Ke6 f7 Kf5 Ra8 Qc3 Rc8 Rg8 f8N Rg7 Nd7 Rf7 Nb6 Qb7 Na8 Qa6 Kh2 h3 Kg3 h2 Kh3 h4 Rb8 N1d3 Ne1 Nf3 Rc8 Nde5 Rb8 Ke4 f5 Qb7 f6 Kf5 Bc5 Be7 Rf8 Bd8 Be7 h1Q+ Nh2 Rg7 f7 Nd2+ Bd3+ Qe4 Nf1 Qa5 Be2 Qaa6 Re8 Rgh7 f8N Rf7 Nh7 Qc2 Rf8 Qc3+ Kg2 h3+ Kh2 Nf4 g6 Qe6 g7 Nfg6 g8N Qba6 Bb4 Bh4 Ngf6 Qb7 Ng5 Qba6 Kh1 h2 Kg2 Qb7 Be7 Qba6 Nd3 Qb7 Kh3 h1Q+ Nh2 Qe4 Nfg4 Qa4 Nf1 Qaa6 Kh2 Rh7 Ne1 Rf6 Kg2 Rhf7 Kh2 Qec8 Kg2 Rb6 Kh2 Qe6 Kg2 Qa1 Kh3 Qc3+ Nge3+
Rn4n1/1B1n2NK/8/3nP2R/nrkr1p1R/1bR3n1/RRpB2P1/Q1q1b1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b4 c5 b6 f5+ Ke5 h5 d6 a5 d5 a4 b5 h3 d7 a3 d6 a2 b7 f3 b6 h4 Qd2 f2 Ba3 h2 Qh6 f4 Kf5 h3 Kg6 Qc7 d8R Be6 d7 Ra4 Rc8 Rb4 d8R Bg7 Qh5 Bc3 Bc1 Be1 Bd2 Rh7 Nc3 Rd7 Qf3 Rd4 Rd5 Qc6 Nd1 Qc7 Rb1 a1N Qa3 Nb3 Rh5 Qc6 Kh7 Bd5 Ra1 Bf7 Nf3 Be6 Rg1 h1N Ra2 Ng3 e4+ Ne2 e5 h2 Rh1 Bd5 Qb2 Bf7 Qa1 Qc7 Rg1 h1N Rh4 Ng3 Rgh1 Kb5 Ng1 c4 Ne3 c3 R1h3 Nc5 Nf5 Bb3+ Ng7 Ncd7 Rh5 Qc4 R3h4 c2 Rc6 Nc3 Be2 f1N Bf3 Na4 Be4 Qf7 Rc3 Ne3 Bf3 Qe7 Bd5 Na6 b8R Qf8 Be4 Nd5 Ra8 Nab8 b7 Qc5 Rf3 Kc4 Re3 Na6 b8R Qa7 Rb6 Nab8 Rd3 Nac3 Rb7 Qa3 Re3 Na4 Rb6 Nc7 Bb7 Nd5 Rf3 Qc1 Rb5 Re4 Rc3+ Kd4 Ra3 Rc4 Rh2 Ba2 Rbb3 Rb4 Rb2 Bb3 Rf3 Kc4 R2h4 Rd4 Raa2 Ndc5 Re3 Ncd7 Rc3+
4Nb1R/pN1QB1Rp/Pn2B1r1/1rk1KP1r/R2nb3/2r3R1/n3q2R/1n1R4 b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 Kd7 Ke3 b5 Kf4 e3 g4 b4 a4 h3 d4 e2 g5 e1N d6 Kc6 a5 e6 a6 b3 d5+ Kd7 c6+ Ke8 g6 h2 c7 Kd7 g7 b2 Nc3 b1N Nf3 Ng2+ Ke5 Ne1 Ng5 Nc2 f4 Ne7 g8R Nd4 f5 Qe8 Rg7 Rg8 Nb5 Bb7 Nf7 Nc8 Ba3 Nb6 c8R Bc6 Rhg1 h1R Nc7 Rh5 R1g3 Bb7 Bc4 Nbc6+ Kf4 Nb4 Ke5 Qe7 Ne8 Rb8 Ba2 Ba8 Rc2 Bc6 Bb3 Na2 Rh2 Bb7 Qd3 Rc8 Bb4 Rc3 Qd1 Nc1 Ra4 Na2 Ke4 e5 Bc5 Kc8 d7+ Kb8 Nfd6 Qe6 Nf6 Kc7 d8R+ Qe7 Rb8 Bc6 Nfe8+ Kd7 Rf7 Rg6 Rg7 Ba8 Nf7 Qe6 Be7 Bc6 Nfd6 Ba8 Qd3 Bb7 Ke3 e4 Kf4 e3 Qd2 e2 Rc8 Qf6 Qd3 Qg5+ Ke5 Qg4 Qd2 Rf3 Rc1 Rc3 Rd1 e1R+ Ne4 Rh3 d6 Kc6 d7 Qe2 d8R Rh5 Be6 Rg1 Re3 Re1 N4d6 Kc5 Ra8 Be4 Rg3 Rf1 Nc7 Nc2 Rc1 Nba3 Ra1 Rb1 Nb7+ Kc6 Qd8 Nd4 Nd6 Kc5 Qd7 Rb5 Rd1 Nb1 Rf7 Bh6 Rh8 Rgg5 Nce8 Bf8 Rg7 Rg6 Nb7#
2K2Br1/2p3r1/4Bk2/NbqpPq1R/1Bq5/3Qb1B1/Rq1PBq2/1B1nr2N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 e5 fxe5 b5 Ba3 Nc6 Bc1 Nd4 Nc3 axb4 Nb1 b3 Bh3 b4 Bf1 Nb5 cxb5 Ba6 Na3 Bb7 Nb1 Bc8 Kf2 Ke7 Ke3 f5 Kd4 g5 Kd5 f4 h4 b2 a4 g3 h5 g4 h6 d6 Kc6 g2 a5 g3 h7 b3 e6 f3 b6 f2 a6 Nh6 a7 Ng8 b7 Nf6 Rh5 Ne4 Ra2 Rb8 a8B Bg7 Qc2 Qf8 Na3 b1Q Nc4 b2 Na5 Qf7 Nh3 Re8 h8B Bf8 Be5 g1Q Bf4 Kf6 e7 g2 e3 Qg6 Bg3 Nc3 e4 Bf5 Bd3 f1Q Nf2 Bh6 Nh1 Rh8 e8B d5 Bf7 Rh7 Qb3 Rc8 b8B Bd7+ Kb7 Qgf5 Be6 Rg8 Ba7 Rhg7 Bc5 Qa1 Bcd6 b1R Bca3 Qc5 Bb4 g1Q Bf8 Re1 Bb1 Qgf2 Qc4 Ba4 Kc8 Qb2 Bc6 Be3 Bb5 Nd1 Qc2 Qd3 Qb3 Qdc2 Be2 Bb5 Qd3 Q2c4 e5+
K4b1k/NBN3Q1/2p4r/B1P2NN1/nR1b2rq/p1q3q1/N2R1P2/1bN1q2r b - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h3 f5 Bc4 Nd7 Be2 Ne5 Bd3 fxg4 Bf1 g3 h4 g4 Qe2 Nf7 Qd1 Ng5 hxg5 Be6 Rh3 Bd7 Rh1 Bc8 Ke2 Kf7 Ke3 Kg7 b4 e5 c4 h5 d4 a5 c5 g2 g6 a4 b6 h4 d5 g3 d6 h3 b7 a3 b8N h2 d7 Qe7 d8N Rh5 b5 Rh7 b6 Ra7 b7 Bh3 Ne2 g1Q Qd4 g2 Nbc3 Ra6 Ra2 Qh4 Bd2 Bf5 Nf7 Ne7 Nc6 Nc8 b8N Ra4 Ng5 Rh6 Na7 Kh8 Nc1 Nb6 Ba6 c6 Bb7 Rc4 Na6 Na4 Nc7 Qd1 Be1 g1Q Rd2 Qc2 N3a2 Qg2 Rg1 h1R Qa1 Qgh2 Rg4 Qb2 Rd6 Qc2 Ba5 Rb4 Rd2 Qc3+ Ke2 e3 Kf3 Bb1 g7+ Kg8 Rf4 Qg1 Rg4 e4+ Kf4 e2 Kf5 Rd4 Ke5 e1B Rf4 e3 Qb2 Rh8 Ke6 Rc4 Kd7 e2 Kc8 Qgg3 Kb8 Rh6 Ka8 Rd4 Nf7 Kh7 g8N Rb4 Ng5+ Kh8 Ne7 Rd4 Rf6 Re4 Nf5 Rg4 Rd4 Bd2 Rfd6 e1Q Rb4 Be3 Rd2 Bd4 Qb3 Qa1 Qf7 Qac3 Qg7+
Nbb1K3/2B1B1N1/r2B2nP/br1rQ1b1/4p2p/nr2P3/B1R3BR/b2B1k2 b - - 0 1 illegal: No proof kernel
7R/2R1n1n1/R1P4R/1bBr2b1/Q1pn3k/Nr1B2n1/K1PR1np1/2bNbR2 b - - 0 1 illegal: No possible last move, all moves rejected
1b2r2B/p3b3/3b2Bn/1n1K3P/1Q1R4/PN3nBB/p1nRN1b1/3nBrBk b - - 0 1 illegal: No proof kernel
4BB2/QqBN3P/4p1P1/2p3B1/R2brnb1/Kn1RN1p1/1B3rBk/1rqn4 b - - 0 1 illegal: No proof kernel
3Q2r1/nPr5/Rr2B1N1/B1pP4/2bk1B1b/2B1NBnK/2pB1qpb/1q3R2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 Kg2 Kd6 e4 Kc5 b4+ Kd4 h4 f5 h6 a5 e5 c5 h7 g5 e6 g4 b6 g3 b5 c3 e7 a4 e8B c2 b7 f3+ Kh3 f2 h5 g2 h6 f4+ Bd7 a3 b6 f3 Be2 f1Q Nc3 a2 Nd5 f2 Bf3 Qg5 Ne3 Nc6 b8B Qf6 b7 Bd6 Be6 Bh2 Bf4 Nge7 d3 Qe1 Bd2 Rg8 h8B f1R h7 Nf5 Bg7 Rf2 h8B Na7 Bb4 Ng3 Bgh6 Rg7 Bhg5 Qf7 Bd8 Qf6 Bda5 Rc7 Bg7 Bd7 Bgh6 Rg8 Bd6 Rd2 Bd5 Ba4 Nf1 Bb5 Bb6 Qff2 Bf3 Bc4 Bg5 Rc6 Bb8 Rd6 B6c7 Ke5 Ne2 Rf8 Nf4 Rf7 Bh6 Rg7 d4+ Kf6 Ng6 Rg8 Rg1 Rd3 Qd2 Qb1 Qd1 Rc6 Bc1 Ra6 Ne3 Rc6 Rf1 Ra3 Be1 Rb3 Bb6 Rb5 Bf4 Rc7 Bb4 Qb3 Rb1 a1B Qd2 Bb2 Ra1 Qa2 Qd1 Qb1 Ra6 Ba1 B6a5 Rb6 Qd3 Bb2 Qe4 Ba1 Qc6 Bb2 d5 Be5 Bcd2 Bd6 Nh8 Be7 Qd7 Bd8 Bg5+ Ke5 Bf4+ Kd4 Ng6 Be7 Qd8 Bh4 Bbc3+
2B1Qrn1/P2rRb2/2p2bb1/P6N/Rn1p3q/1BB2K1B/1N1p1bB1/k4B1b b - - 0 1 illegal: No proof kernel
b1B2n2/1bK1pBn1/B5Bq/1p1PR1B1/6b1/N2Nr1r1/1BP1k1pR/2bn2Q1 b - - 0 1 illegal: No proof kernel
1K2BNB1/B1r4b/1Pp1r1Bp/k1B3P1/3bQ2n/q2R4/q2p2N1/Brrn1R2 b - - 0 1 illegal: No proof kernel
1R1N1b1Q/1R1BbPb1/B4Ppp/K1pn1Bk1/bNr2B2/1q2r3/3B1n2/1B5q b - - 0 1 illegal: No proof kernel
qr2q3/2N4p/1pb2nR1/qRq3QP/pP2R3/1BR1N2q/1n1RKB1k/6bR b - - 0 2 illegal: No possible last move
B7/1q2rQ2/2qRRRrp/N7/pRP2pr1/K1b2RNR/2bB1P2/2kr1n1q b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Ra4 Na6 Ra2 Nb4 Ra3 cxd4 Ra1 d3 Bg5 d4 Bc1 Nd5 exd5 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 Kd7 g4 Kd6 c4 Kc5 b3 Kb4 b6 a5 b7 e5 b8R+ Qb6 g5 f5 d6 e4 g6 h6 d7 a4 d8R f4 g7 h3 Bg2 h2 Ne2 Bf5 Ra3 Nf6 g8R Ra6 Ng3 Bg7 Rge8 Rg8 Qh5 Ng4 Qf7 e3+ Kd1 d2 Ba8 Qb5 Rb6 Bh8 Re4 e2+ Kc2 d1Q+ Kb2 e1R Nd2 d3+ Ka2 Kc3 b4+ Kc2 Nb3 d2 Na5 Qd5 b5 Ne3 Rd3 Rg5 Ka3 Qf3 Rb3 d1R Bd2 Re2 Be1 Nf1 Ree8 Qfe4 Rf3 Rg4 Rc6 Bf6 b6 Kc1 b7 Bc3 b8R Qee6 Rb5 Bc2 Rb4 Qed6 Rb6 Qb7 Ree3 Qdc7 Rg6 Re6 Rd6 Qcc6 Re5 Re7 Rf5 R2e5 Rge6 Rg6 Rff6 Reg5 Rg1 Rg4 Rg2 h1Q Rh2 Qa7 Rh3 Qab7 Bd2+
BBNq4/PpR1p2n/N1k1P1p1/3p1Qb1/5rB1/1Bqbb1K1/1R3B2/rn1B4 b - - 0 1 legal: proof: g4 a5 d4 c5 b4 cxd4 bxa5 g6 g5 Qc7 h4 Qc6 h5 Qf6 h6 Qg7 hxg7 f6 Qd2 fxg5 Qd1 g4 f4 h5 Kf2 d3 a4 d6 c4 Kd7 e4 h4 f5 h3 e5 h2 a6 d2 f6 Rh6 f7 Ra7 c5 Ra8 c6+ Kc7 a5 Rh5 a7 Rg5 a6 Nd7 Ne2 Nb8 Nd4 Rf5+ Kg3 Rg5 Nb5+ Kb6 c7 Nh6 g8B Nc6 Qf3 d1Q Be2 Qd2 Qf5 Qc3+ Be3+ Nd4 N1a3 Kc6 Nc2 Nf3 Rhd1 h1Q Rab1 Nd2 Rb2 Nb1 Rd3 Bg7 f8B Qd5 Bd1 Nf7 Bf2 Bf6 Bg7 Rh5 Bh6 Rh4 Bf4 Ng5 Bf7 Bd7 c8B Nh7 Bg8 Qdd4 Bb3 Bg5 Nb4+ Kc5 Nc7 Bb5 Nbd5 Kc6 Nb6 Qd5 Be6 Qdd4 Nc8 Bc4 Kg2 g3 Kf3 g2 Kg3 Qe1 Rdd2 g1B Rd3 Qb6 Rd5 Bd3 Rd4 Rb8 a8B Qc3 a7 Rh1 Na6 Qd8 Be1 Be3 Bf2 Bh6 Qh3 Bg5 Beg4 Rf1 e6 d5 Rc4+ Kb5 Rc7 Re1 Rd7 Kc6 Be5 Rf1 Bg1 Rf4 Qf1 Ra4 Qf5 Ra1 Bf2 Qc7 Nb6 Rf8 Nc8 Qd8 Bb8 Rf6 Qe5 Rf4 Qf6 Kb5 Qf5 Kc6 Rc7+
2nnbN1n/2q3k1/p1B4p/1B1N3B/Pr6/1bK1B3/1pRp1n1P/q1RB1BQ1 b - - 0 2 illegal: No proof kernel
b5n1/B1KRpr1B/P3R1B1/2b1n1p1/krnNb1Bp/QN1p2nB/4B1P1/8 b - - 0 1 illegal: No proof kernel
n3b1Nr/1K1RN1R1/1p6/p1rN2bp/2B2p2/kP1P1N2/1NQb2rb/3N2Bn b - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 e5 a4 exf4 c4 dxc4 a5 b6 a6 Qd6 Rh6 Qd5 Rh1 Qb7 axb7 Ba3 Ra2 Bb4 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 Kd5 h5 e4 f5 b3 c5 g6 a5 g5 f3 e5 c3 g7 f2 e6 f4 e7 c4 e8N c2 g6 c3 Nd6 Nh6 g8N Ng4 g7 Be7 Bc4 f1R Nf6 Bd7 g8N Na6 b8N Be8 Nf3 Rf2 Rg1 Rg2 d3 Bd8 Be3 c1B Qc2 Bd2 Re1 Be7 Bg1 Nf2 Re6 Bd8 Re7 Nh1 Rd7 Nc7+ Kc6 Be1 Kb7 Bg3 Qc1 c2 Nc3 Be7 Nd1 Bh2 Qb1 c1B Qc2 Be3 Rb1 Ka3 Nd5 Bf6 Nc6 Bd2 Nce7 Rd8 Ne4 Bg5 Nec3 Ra8 Nb2 Rc8 Rf1 Na8 Ncd1 Rc6 Re1 Rc5 Re6 Nf2 Rg6 Nh1 Rg7
K7/1B3n1q/pb1pR1n1/BBp5/1RP1q2N/1NQBpbk1/P1B2B1b/b1b5 b - - 0 1 illegal: No proof kernel
B2Q4/1pBRBnpN/B2p2br/1n1n1R2/8/2BPrk1p/P1Bqp1NK/4r3 b - - 0 1 illegal: No proof kernel
q3Q1K1/1q3r2/N1BpR2p/p2p1Rb1/1pbN2RB/1R1P2P1/4n3/R1n2Rqk b - - 0 1 illegal: No proof kernel
1Bb4b/Br2bp1p/3rB3/1p1Np2N/5n1B/k1PR2BP/3pRbq1/1K1Q3B b - - 0 1 illegal: No proof kernel
3BK3/r1bBppBq/1nB1BP2/QNR1P2b/4q2n/nk6/qn2Nr2/n2R2B1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 h5 Kd3 a5 Ke4 d6 Kd5 Kd7 e4 a4 b4 a3 g4 a2 c4 h3 f4 h4 g5 d3 g6 h2 f5 h3 f6 d2 b6 Ra5+ c5 Ra7 g7 Nh6 g8B Nf5 b5 Bh6 b7 Nh4 b6 Bf4 Qh5 d1N Ne2 Nb2 Bh7 Nc4 Nbc3 Na3 Nb5 Bg3 Rb1 a1N Bh6 Qc7 Rg1 h1Q Rc1 h2 Bg7 Qg2 Rc3 h1Q Rc2 Qgh2 Bg2 Qd8 Qe5 Qg8 Rd1 Qe1 Bg6 Qh7 Rc4 Qb4 Qc3 Qb1 Qa5 Qa2 Bh1 Qg2 Bh5 Qf3 Bg4+ Qff5+ Kd4 Ke6 c6 d5 Kc5 Bc7 e5 d4 Be4 Bd8 c7 Nd7+ Kc6 d3 b8B d2 b7 Nb6 Rc5 Rg8 Bh8 Rg6 Bg7 Rg5 Bh3 Rg2 Bg4 Rf2 Bh3 Ra6 Ba7 Qg4 b8B Qgf5 Rdc1 d1N Bh1 Nb2 Rd1 Nd7+ Bb6 Ra7 B1g2 Ba6 c8B Bc7 Be4 Bd6 Bd8 Bc7 Nbc3 Bd3 Nb5 Qg4 Bf3 Bg6 Bh1 Bh5 Bd5+ Kf5 Bb7 Nb6 Be6+ Ke4 Ba8 Nc8 Kd7+ Ke3 Ke8 Qge4 Bc6 Nb6 Rh1 Kd3 Bhg4 Qec4 Rd1+ Kc2 Bed7 Kb3 Bge6 Ra6 Ba7 Qd5 Rc4 Qde4 Rc2+ Nd5 Be3 Ra7 Rc4 Nb6 Bc5 Rg2 Bg1 Rf2 Rc5+
qbn1N2K/Nr1np3/1NN1P3/1nNR1pkp/4b1B1/3Rq2b/1B2bP2/QrN5 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 f5 c4 Kf7 g4 Kf6 b4 a5 e4 h5 b6 d5 e5+ Kg6 b5 a4 g5 h3 e6 d3 Ke3 d2 Kf4 a3 c5 h2 b7 d4 b6 a2 c6 d3 c7 Nf6 Be2 Ra5 Na3 Ra6 Bb2 Ne8 Bg4 Ra7 Nb5 Bh6 Ne2 Nd7 b8N Nd6 Nc6 Ba6 c8N Rb7 Nc1 Qf8 Qa4 d1N Nba7 Nc3 Rd1 h1B Rb1 a1Q Qa3 Rc7 b7 d2 b8N Be4 Nb6 Be2 Na6 Qa8 Nc5 Nc8 Qa6 Qa5 Ra1 Qb4 Ra3 Nb5 Rd3 Qb3 Qa1 Rb7 Rd5 Bg7 Rd3 Bf1 Rd5 Bh3 Rd3 Kh7 g6+ Kh6 Rd5 Bc3 g7 Kg6 g8N Qa3 Rg1 d1B Rg3 Be2 Nf6 Rg8 Rgd3 Be5+ Ke3 Bb8 Ne8 Nbd6 Kf4 Kh6 Bf3 Rg1 Bg4 Kg6 N1b3 Rb1 Nc1 Kh7 Kg5 Nb5 Rd1 Kg8 Kg6 Qe3 R1d4 Kh8 Kf7 Kh7 Rd3 Kh6 Kg8 Kg5 Kh8
N2KRr1b/k1n1p3/B3qN1b/2B2pN1/Qr1pb2R/1N1N1n2/1r1PP1bN/5q2 b - - 0 1 illegal: No proof kernel
2q1Q3/1q1rp2b/Np5p/r1N2NbN/1pR2n2/Nn1NK1RP/4Pp2/k2qBB2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f3 axb4 f4 gxf4 Kf2 Kd7 a4 Kd6 g4 Kc5 d4+ Kc4 g5 c5 h3 f5 d6 h6 g6 f3 d5 f4 a5 b6 d7 Nc6 g7 Rh7 a6 Nf6 g8N Na5 d6 Rh8 a7 Nb3 Na3+ Kc3 Bd2+ Kb2 Rc1 c4 Be1 Nd5 Nf6 c3 Nh5 Qc7 d8N c2 d7 Qb7 Nc6 Bg7 d8N Bf5 Ne5 Bf6 Ne6 Bg5 Nc5 Rhd8 Ned3+ Ka2 Rh2 Rd7 Rg2 Be4 Rg3 Bh7 Rb1 c1Q Qd2+ Qb2 Rc1 Qc2 Qc3 Qd1 Qh8 Qc2 Qe8 Qd1 Rc4 Ka1 Bg2 Qc2 Kf1 f2 Nf3 Qc3 Nh4 Qh8 Nf5 Qg8 Be4 Qe6 Bh1 Qec6 Kg2 Qcc8 Kf3 f1Q+ Ke4 f3 Bg2 Qh1 Bf1 Nf4+ Ke3 f2 Nb1 Rb8 a8N Qg1 Nc7 Ra8 Na3 Ra5 N7a6 Qgh1 Nd4 Qhd5 Nf5 Qd6 Nb2 Qd1 Nbd3
3QB1bn/p5Nr/rBRbpKpN/5pp1/1Br3Pn/q3R2B/1Bk1PB2/6r1 b - - 0 1 illegal: No proof kernel
Brq2n1R/2pprbkp/1pbP1p1N/1RN3N1/1BPp2NN/4b3/K3Q3/4n1N1 b - - 0 1 illegal: No proof kernel
4Rn2/K4bR1/1nb3n1/1bkB2QP/Bq2R1N1/2qP1B1b/1rR3B1/b5N1 b - - 0 1 legal: proof: c4 b5 b4 g5 a4 d5 axb5 h5 cxd5 a5 Bb2 h4 Qc2 a4 Qh7 Ra5 bxa5 e5 Kd1 g4 f4 exf4 Bd4 g3 Bf2 gxf2 Qxh4 Bg4 Qh7 Bc8 Kc2 Kd7 Kd3 Kd6 Kc4 c5 e4 f5 h4 f3 g4 f4 b6 a3 Kb5 c4 b7 c3 d3 a2 g5 c2 h5 c1Q a6 Bh6 a7 Ne7 a8B Be6 g6 Qc3 g7 Ng6 g8B Qh4 Kb6 Nd7+ Ka7 Kc5 b8R Bg7 d6 Ndf8 d7 Bf7 Bg2 f1B d8R f2 e5 f3 e6 Qhb4 e7 Be2 e8B f1B Bd5 f2 Rd7 Bd1 Rh2 Ba4 Bdf3 Bb5 Qh6 Be2 Na3 f1B Rc1 a1N Rc2 Nb3 Nc4 Na5 Ne3 Nc4 Ng4 Nb6 Rh4 Bf6 Qg5+ Be5 Bh1 Bh3 Bhg2 Rh7 Rdb7 Bd1 Bd7 Bc6 Re8 Rh6 Re2 Bda4 Rc2 Bab5 Rc7 Bb3 Bgd5 Rh8 Bde4 Bf7 Bd5 Ba6 B7e6 Qa5 Be2 Na4 Bh1 Bg8 Bc4 Rh7 Bg2 Qe1 Bed5 Ba1 Ne3 Qec3 Bb5 Rf7 Ra2 Qab4 Rhe4 Rf2 Rg7 Nb6 Bef3 Bf7 Ba4 Bab5 Ng4 Re2 Rc2 Rf2 Rc1 Rb2 Rc2
4N2n/3K4/3nrPnB/NBP3k1/8/2Bb1RBp/2r1nb1Q/nNNR3q b - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 bxa5 g5 g4 c5 a4 h5 d4 cxd4 axb5 Ra7 gxh5 Ra8 h4 gxh4 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 e5+ Kg4 d3 f4 h3 c4 d2 h6 d4 h7 e4 b6 e3 b7 e2 a6 e1N a7 d3 Ne2 Nc6 b8N Nc2 Ra3 Nce7 Nc6 Ng6 Na5 Na1 Qc2 d1N c5 d2 Qa2 Bd6 Rf3 N8e7 Qc2 Rb8 a8N Rb2 Nc7 Nc3 Rg1 Rg8 h8B+ Rg7 Rh1 d1N Qd2 Nb5 Ne8+ Kf7 Kg5 Ba6 f6 Qa8 f5 Bg3 Qd6 Ra2 Bf4 Bf2 Nc1 Rc2 Bg3 Ndc3 Qe5 Nd6 Bb5 Ne2 Rd1 Rh7 Kg4 Rh6 Bg7 Kg8 f7+ Kh7 f8B Nh8 Qf4 Qd5 Bc3 Re6 f6 Kg6 Bh6 Qc6 Bh4 Qd5 Qh2 Qb7 Bg3 Qc6 Ba4 Bd3 Bb5 Qb7 Re3 Qg2 Rf3 Qh1 Bcd2 Re3 Bc3 Nd4 Kf4 Re1 Ne2 Kh5 Ke5 Neg6+ Kd5 Kg4 Nc1 Re6 Bg5 Ne2 Kc6 Kh5 Kd7 Kg4 Bh6 Kh5 Bf8 Kg5 Bh6+
nB3bKR/NN2N3/2nP2N1/2q1q2q/5n2/4B2p/kR2Pb1R/1q1Qb1R1 b - - 0 1 legal: proof: c4 d5 a4 dxc4 d4 b5 axb5 e6 d5 Qh4 d6 Qd8 f4 a5 g3 c6 Bg2 Ra7 Bd5 exd5 b6 d4 h3 g5 Ra3 h5 Ra4 f5 Ra1 Re7 g4 Re5 fxe5 f4 Bd2 Bf5 gxf5 g4 Be3 g3 Bc1 Rh6 Rh2 Rg6 Rh1 Rg4 hxg4 Qf6 Rh4 Qg5 Rh1 Qd8 Kd2 Kd7 b4 c5 e6+ Kc6 b7 Kd5 g5 f3 g6 d3 Ke3 h4 Kf4 f2 f6 f1Q+ Kg5 a4 e7 a3 e8R g2 b5 d2 b6 a2 g7 c3 Kg6 Kc4 Kh7 c2 f7 Kb3 Re5 h3 Ba3 c4 Re3+ c3 Re7 Qf6 Re8 Qe5 Nf3 g1B Nh4 Nc6 b8B Qdg5 b7 Bf2 Ng6 Nge7 g8N Nd5 Rh2 Nb6 Bc1 Na8 N8e7 Qh5+ Kg8 Qc5 Na3 Qce5 Qg1 d1Q Be3 c1N Nb5 c2 Na7 Nd3 Qf1 Qc1 Qd1 Qb1 Rd8 Nf4 Rc8 Bg7 f8N Kb2 Re8 c1Q Ne6 Qcc5 Nd8 Ka3 Bc7 Bf8 b8R Qd3 Rab1 a1B Nb7 Bc3 Rb2 Qdf5 Rbc8 Bce1 Bb8 Qb1 Red8 Bg7 Rf8 Bh6 Rf5 Bg7 Rg5 Bf8 Rg1 Bg7 Kf7 Bh6 Rh8 Bf8 Rb3+ Ka2 Kg8 Qbc2 Rb6 Qb1 Rb2+
1b5b/Q1r4N/r2PBn2/1Rk1b3/1rrR1RP1/N2b1KN1/p1b3B1/2R2N2 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 f4 exf4 e4 Nf6 b3 Bh3 Ba3 Bf5 Bc5 Ng8 Be3 Bc8 g4 fxe3 h3 f5 Ra5 g5 Rh2 f4 Rh1 Qf6 Ra1 Nc6 Na3 Ne5 Nb1 Qf5 gxf5 g4 Bd3 g3 Bf1 Ng4 hxg4 Kd8 Bc4 Kd7 Bf1 Ke8 Ke2 Kd7 d4 Kd6 f6 c5 e5+ Kd7 d6 a5 f7 h5 b4 a4 d5 a3 b6 a2 b5 c4 b7 h4 b8R h3 b6 g2 b7 h2 Nd2 c3 Kf3 c2 Ne2 g1B Ng3 c1R Bg2 e2 Ndf1 e1B Qd4 Rc4 Qa7 Nf6 Rc1 Bd4 Rg1 h1R e6+ Kd8 d7 Ke7 d8R Be5 Rd6 Bg7 f8N R8h7 Rb6 Bd7 Rd8 Bh8 b8N R1h2 Nc6+ Kd6 e7 Kc5 e8B Bf5 Rd6 Bc2 Nb4 Rc7 Bf7 Rh6 Bg8 Rb8 Nh7 B1c3 Be6 Ba1 Kf2 f3 Ke3 f2 Kf3 Bf4 Rd7 Bae5 Rd8 Ba4 Nc2 Rg6 Na3 Bc2 Rf8 Rh6 Rd1 Rbb7 Rd4 Rb8 Nh2 f1B Rh1 Bfd3 Rc1 Rg6 Nhf1 Ra8 Qb8 Ra6 Qa7 Rgg7 Rf7 Rb7 Rf8 Bb8 d6 Be5 Rg8 Rge7 Rg5 Rec7 Rf5 Raa4 Rff4 Rab4 Qa6 Ra7 Qb7 Ra5 Qa7 Ra6 Rb5+
bBN5/1n5q/1rN1pKN1/2P1p2B/7n/1RPNR1k1/1qrRb2p/3R1Q2 b - - 0 1 legal: proof: b4 b5 h4 g5 e4 gxh4 d4 a5 bxa5 c5 dxc5 e6 a4 Be7 axb5 Bf8 b6 Bd6 e5 Bc7 b7 Bb6 axb6 f6 Ra7 fxe5 Ra4 Qc7 Ra1 Qd8 Ke2 Ke7 Kf3 Kf6 Kg4 d5 Nc3 h3 Nf3 d4 Ra3 h2 Nb5 h6 Be2 d3 Ne1 d2 Re3 Qc7 Ba3 Ra6 Nd6 Ra8 Nd3 Ra5 Qf1 Na6 b8N d1B b7 Rh7 Nc6 Qb6 b8R Bb7 Nc8 Ba8 g3 Qb1 Rb3 h5+ Kh4 Re7 g4 Rb5 g5+ Kf5 g6 Rc7 g7 Ne7 g8R Qb2 Rd8 Rb6 Bf3 Be2 Bb4 Rb8 Ba5 Rbb7 Bb6 Rb8 Ba7 Rb6 Bb8 Ng6+ Kh3 h4 Bh5 Rd7 Rg1 Rg7 Rg2 h1Q+ Rh2 Nc7 f4 Nb5 c3 Nd6 Rd7 Nb7 Rd4 Kf6 f5 Kg5 f6 Qe4 f7 Rh7 Nf2 Kf4 f8N Rd7 Rd1 Rd2 Rg2 Rc2 Rh2 Ne7 Rg2 Qh7 Rh2 Nf5 Rg2 Nd4 Rh2 Nf3 Ng6+ Kf5 Nd3 Kg5 Kg2 h3+ Kg3 Nh4 Rf2 Bf3 Rfd2 h2 Ree1 Be2 Kh3 Nf3 Kg3 Kf5 Kh3 Ke4 Kg4 Nh4+ Kg5 Ke3 Kf6 Ke4 Qh1+ Ke3 Ndf4 Kf2 Nd3+ Kg3 Qf1 Bg4 Re4 Be2 Re3+
QK4N1/5B2/r1Prp1N1/2qR1Bkp/1np1PRB1/1Nn2r2/N7/1qq3B1 b - - 0 1 legal: proof: g4 g5 f4 b5 fxg5 b4 h4 e6 g6 b3 g7 Bd6 g5 Ba3 g6 Ke7 axb3 Bc5 b4 Ke8 b5 Bf8 b4 a5 d4 axb4 d5 Be7 c3 Bg5 hxg5 Bb7 Ra2 c5 Ra1 Bc6 dxc6 bxc3 Kf2 Ke7 Ke3 h5 Ke4 d5+ Ke5 f5 e4 f4 b6 d4 b7 c2 Be3 c1Q Ra5 d3 Nf3 c4 Nfd2 f3 Be2 f2 Nb3 f1Q Rd5 d2 Bg4 Qa5 Nc3 Qd8 Bg1 Qe8 Na2 Rh7 Rh4 Qa3 Qa1 Nf6 g8B d1R g7 Rd2 g6 Rh6 Bh7 Qf8 g8B Qac1 g7 Na6 b8N Nb4 Bhf5 Ra6 Nd7 Qb1 Bf7 Qfc1 Be2 Rg6 Rf4 Rg3 Beg4 Rf3 g8N+ Kd8 Ra5 Rd6 Rd5 Qe7 Nf8 Qa7 Rd4 Nfd5 Ng6 Nc3 Rd5 Qe7 Kd4 Qg5 Kc5 Ra8 Kb6 Ra6+ Kb7 Qe7+ Kb8 Qf8 Bh3 Qe7 Nh8 Qg5 Nh6 Ke7 Ng6+ Kf6 Bfg4+ Qf5 Ng8+ Kg5 Be3 Qe5 Bg1 Rd3 Bf5 Rf3 Bhg4 Qd4 Qb2 Qc5 Qf2 Qa5 Qa7 Qc5 Qa8
4R3/1p2K3/3p1R2/N3R1qb/PnQ2Bk1/1qPNN1bN/1RpB3b/5n1n b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 Ra4 a3 Na6 Bc4 Nb8 Ba2 Ra8 c4 b3 c5 bxa2 c6 Ra7 Nc3 Ra4 Nb1 Ra8 Ne2 g5 Rg1 d6 Rf1 e6 Nbc3 Rh7 Bb2 Rd7 Nb1 Ke7 Bc1 Ra5 cxd7 c5 Ng3 c4 Rh1 c3 Ne2 c2 Ng1 Ra6 Ke2 Rc6 Ke1 Rc3 dxc3 Qc7 Ne2 Qa5 Ng1 Qd8 Kd2 Kf6 Ke3 e5 Ke4 g4 Kd5 g3 h4 g2 f4 e4 a4 e3 h6 e2 h7 e1Q h8B+ Bg7 h5 Qf1 h6 Qc7 d8N Qa6 h7 Nd7 Qd4+ Ne5 Nh3 g1B Nd2 Qd7 Rb1 a1N Nf1 Be3 Nc6 Bf2 Rb2 Qd8 Ne3 Qe8 Na5 Qf1 Bd2 Nh6 Qc4 Qc1 Re1 Nd3 Re2 Ng4 Re1 Kf7 f6 Kg6 f5+ Kh5 f7 Be5 f8R Nb3 f6 Bfg3 f7 Ngf2 Re2 Qd8 Re8 Qb1 f8R Bg4 Rf6 Nh1 Re1 Bf3+ Ke6 Nb4 Bg7 Bh2 h8N Beg3 Ng6 Be2 Ne5 Bd1 Rf4 Qg5 Rf6 Bg4+ Ke7 Kh4 Qf7 Bh5 Nd3 Qa2 Bh6 Qa3 Nd1 Kg4 Re5 Qa2 Bf4 Nd2 Qc4 Nf1 Ne3+ Kf3 Nd1 Qb3 Bd2+ Qf5 Bhf4 Kg4 Kd8 Qg6 Ke7 Qg5 Ne3+
RQ3K2/1N3bN1/B3qkr1/1P2P3/nN4Rn/6qB/2nB1b1b/Nrr2Bn1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 b6 Ke7 Kf2 f5 Kf3 h5 b4 c5 g4 a5 e4 a4 d4 c4 b7 a3 g5 a2 g6 c3 b5 h3 e5 h2 g7 c2 e6 h4 d6+ Kf6 d7 h3 Qe1 Rh6 e7 Qb6 d8N Na6 e8B Be6 b8N Bf7 Nd2 Ne7 Ne2 Nc5 Na6 Rg6 Ng3 Rc8 Bd7 Qe6 Bc4 Rc6 Ba3 c1B Rb1 a1N Nb7 Rc8 Rf1 h1R Rg1 h2 Nb3 Be3 Nb4 Rc6 Bc8 Rc7 Rf1 Rg1 Bc1 h1N Rb2 Nf2 Ra2 Nh3 Ra8 Na4 Nd6 Rh1 Ba6 Rg1 Ke2 f3+ Kd3 f2 Bd2 f4 Nb7 f3 Nf5 Rh1 Rg1 f1Q+ Qe2 f2 Rg4 Qg1 Qf3 Qg2 Qg3 Rb1 Qf4 Rc8 Qh2 Ng1 Qb8 Nc5+ Kc3 f1Q Be2 Qff2 Bf1 Na4+ Kd3 Qh2 Bh3 Qb6 Ke4 Rcc1 Bf1 Nc2 Na1 Qfh4 Bh3 Bf2 g8B Bc4 Ng7 Nf5 Bf7 Bd6 Bg8 Bb3 Bc4 Bc7 Be2 Bf7 Bef1 Qbd6 Ne6 Qe7 Kd5 Qh5 Kc6 Nh4 Ng7 Qe2 Kd7 Bf4 Bc3 Qe6+ Kd8 Qhe5 Bd2 Qc4 Kd7 Qg2 Kd8 Bh2 Kd7 Qgg3 Kd8 Be6 Ke8 Bf7+ Kf8 Qce6 dxe5+
b3rqrN/2N1Bq1n/B2P1b1R/N7/5KB1/2R1nNPQ/3k3n/1q3nBq b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 c4 e5 f4 d5 cxd5 exf4 a4 axb4 axb5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 d3 Kd4 g3 f5 b6 h5 d6 c5 e5 h4 e6 h3 d7 b3 g6 b2 e7 c4 e8N h2 b7 c3 g7 c2 Be2 Be7 Ra7 Nc6 b8N Bb7 Nd6 Bf6 Nc3 b1Q Nd5 Nce7 Ra3 Qf8 d8B Qb3 Bd2 c1Q Qf1 Qcb1 Nf7 Q3a2 Rc3 Bc6 Kf2 f3 Qh3 f4 Nc7 Nd5 Be7 Ne3 Bf1 Bg5 Be2 Nf6 g8B Nh7 Bc1 Bf6 Bb2 Ng5 Bh7 Bb7 Bf5 Rg8 Nh8 Qaf7 Bg4 Nh7 Bf1 Ra3 Bc1 Ba8 Be2 Ra6 Bca3 Re6 Bac5+ Ke5 d4+ Ke4 d5 Re5 Bd8 Re8 Bce7 Kd4 d6 Ke4 Ba6 Kd4 Rc4+ Kd3 Nc6 Kd2 Rc3 Nd1+ Kf1 f2 Kg2 f1N Kf3 Nde3 Bb5 Qc1 Ba6 Qe1 Ke4 f3 Kf4 f2 Na5 Qb1 Nf3+ Kd1 Rg1 h1Q Rg2 Nh2 Rg1+ f1N Rg2 Nf5 Re2 Bg7 Re6 Bd4 Rh6 Bf6 Ne6 N5e3 Bb6 Qa2 Nc7 Qb1 Nh4+ Kd2 Bc5 Nc2 Bg1 Nce3 Nf3+
8/qR1q2Q1/nPP2NqR/1KNR1b2/4r1R1/1n1nNqB1/q5Bq/1b2k2N b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 Nf3 cxd4 Ng1 f3 h3 g5 Qd2 a5 Qd3 f4 Qd1 Be7 h4 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 g4 Bh3 Kf8 Bf1 Bg5 hxg5 Ke8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 e4 h5 b4 d5+ Kc5 f2 c4 f3 f6 h4 b6 h3 b7 g3 f7 a4 f8N h2 g6 d3 b5 a3 g7 g2 b6 d2 Be2 Kf4 e5 Ke3 e6 f1Q e7 Kf2 e8N a2 Nd7 d4 Qa4 d1Q Ndf6 d3 Bd2 Qc2 Ba5 d2 Qc6 d1N Nd5 Nf6 g8R Nb2 Nbc3 Rh4 Rg4 Bf5 Qd7 Na6+ Kb5 Nd3 b8R Ne4 c5 Nd2 c6 Nb3 Qg7 Qd7 Rd1 a1Q Nef6 Qca2 Rd2 Qfb1 Bf1+ Ke1 Rb7 f2 Nge2 g1Q Bg2 f1Q Na4 Qf3 Ng3 Qbc2 Nc5 Qcb2 Rg6 Re4 Rg4 Qe5 Bc3 Qee8 Ne3 Qg6 Ngf1 Qgf2 Be5 Q2e2 Bg3+ Qef2 Rg1 h1B Rh4 Nf4 Rd5 Nd3 Bh2 Q2g3 Rh6 Qb8 Bd6 Qe5 Bc7 Qa7 Bb8 Qh2 Ng3+ Kf2 Bh3 Bg2 Nh1+ Ke2 Bd6 Bf1 Rg3 Ke1 Bg2 Be2 Rg4 Bd1 Rh7 Bc2 Rh6 Bb1 Bg3+
K1n2r1B/R1r1b2n/2Pn4/1BN4N/1Bn1RN2/B5Pn/k4pb1/bqQ4N b - - 0 1 legal: proof: d4 b5 h4 d5 f4 c5 a4 e5 axb5 g5 hxg5 exf4 e4 cxd4 exd5 Bf5 Bd3 Bh3 Bf1 Bc8 Kd2 Ke7 Kd3 Kd6 Kc4 f5 b4 h5 g3 a5 b6 a4 Kb5 h4 c4 h3 b7 a3 g6 d3 g7 f3 Qe2 a2 Nc3 f2 Qb2 f4 Nd1 h2 Nh3 f3 Nf4 Nc6 b8N d2 Nd7 Ra7 Nc5 Rc7 Kb6 Nf6 g8N Na7 b5 Nh7 Nf6 Be7 N6h5 Rf8 Qb1 Qd7 Ba3 Qf5 Qc1 Qb1 Bd3 f1N Nf2 Ke5 d6 Kd4 d7 d1N d8B Nfe3 Re1 Nb2 Nh1 Bh3 Ka6 Nf5 b6 Nc8 b7 Bf1 b8B Bg2 Be2 Nfd6 Bd3 Rb7 Ba5 Rc7 B5b4 Rd8 Ne4 Rf8 c5 Nbc4 c6 Bh4 Nc5 Be7 Nf2 h1N Bf1 N4b6 Bb5 Nbc4 N2h3 Nf2 Ba7 Nfe4 Nf2 Neg5 Nh1 f2 Bb6 Nh3 Re6 Rb7 Bd8 Rc7 Re5 Bh4 Bf6 Bg5 Bg7 Be7 Bh8 Qf5 Rb1 a1B Rb2 Qe4 Ra2 Qb1 Nb7 N8b6 Ka7 Nbc8+ Ka8 Qc2 Bc5+ Kc3 Re4+ Kb3 Bab4 Qd3 Ra7 Qb1 Ba3 Ka2 Bcb4 Qb2 Nc5 Qb3 Nd5 Qb1 Ndf4
N7/1rPB2Q1/N1nB1P2/4b1r1/k1bp1b1R/2rR2b1/3N1Nq1/b1n1KB1B b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Bg7 fxg5 Nh6 g6 Bf8 g5 Ng8 Qg4 hxg4 c4 a5 h4 e5 b4 d5 f6 Kd7 b6 Kc6 c5 g3 g7 e4 g6 e3 h5 d3 h6 Kb5 c6 g2 b7 a4 c7 a3 h7 d4 Rh4 e2 Rf4 d2+ Kf2 d1R Nd2 a2 Rh4 Na6 b8N Bd6 Ba3 Be5 Nh3 Ka4 b5 Nc5 b6 Qd5 b7 Rb1 Nd7 Ne7 g8B Nc6 b8N Rb7 g7 g1B+ Ke1 Qg2 Bd5 Ra5 g8B Bgh2 Nf2 Bhf4 Na6 Nb3 Bge6 Nc1 Bd6 Re8 Rb1 a1B h8Q Rg8 Bh3 Rc5 Rb3 Rg5 Qg7 Rc4 Rd3 Rc3 Ndb8 Bg4 Nd7 Be6 Be4 Bc4 Nb6+ Ka5 Bd7 Kb5 Na8 Ka4 Nb1 Bh2 Kd2 e1B+ Kd1 Bhf4 Nd2 Qh2 Bh1 Qg2 Ng4 Beg3 Nf2 Nb3 Ke2 Nc1+ Ke1
2qrR3/1rB2NbK/1n5b/kbrP1N1P/1N2N2B/2R4p/2nR1n1R/2Q2b2 b - - 0 1 legal: proof: c4 b5 g4 g5 f4 h5 a4 d5 cxd5 e5 axb5 exf4 gxh5 g4 h4 Qf6 Bg2 Qd8 Bh3 gxh3 Kf2 Kd7 Kf3 c5 Ke4 Kc7 b4 Kb6 d4 a5 d6 a4 h6 a3 h5 f3 h7 f2 d7 f1R Bg5 c4 Rh2 a2 Bh4 c3 Nf3 c2 Kf5 c1B e4 f6 Kg6 f5 e5 f4 e6 Bd2 e7 Bc1 e8R Rh1 Nbd2 Bb7 Ne4 Qc8 d8R Ra5 d5 Rf1 Nd4 f3 Nf5 Bch6 Qc1 f2 Rb1 a1N Rb2 Rh1 Rd2 f1B Rd7 Nf6 Rc7 Bfg7 Rc3 Rf8 h8N Ba6 Nf7 Ng4 Kh7 Rg8 Rhf2 Nc2 Rh2 Kb7 b6 Nf2 b5 Nd7 Re7 Rd8 Re8 Kb8 b7 Ka7 b8N Kb6 Nc6 Rg1 Nb4 Rg6 Bg3 Rc6 Ned6 Rc5 Ne4 Ra4 Bh4 Ka5 b6 Bab5 b7 Nb6 b8B Ra2 Rc4 Rb2 Bc7 Bc6 Be5 Na4 Na6 Rb7 Nb4 Nb6 Rc3 Bcb5 Bc7
6q1/QK1R4/4PkrR/B1p3nq/RNr1N3/2Bn1N1P/1b3b1q/qn1N1R2 b - - 0 1 illegal: No possible last move
3NB2R/b1R2npq/2r5/2P2bNr/4QRn1/1bKNP1B1/3N4/kb3Rnq b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kd2 Ke7 h4 Kf6 c4 Ke5 h6 f5 b6 d5 h7 d3 a6 Kd4 b7 f3 a7 f2 h5 f4 h6 f3 Qa4 Bc5 Qa2 Nf6 Qb3 Bf5 Nh3 Nc6 b8R Qg8 Qc2 Ne5 Rh2 Nf7 Rc8 Ng4 Bg2 f1Q Nf2 Qh1 Rc7 Rc8 a8N Bb6 c5 Ba7 Rd7 Rc6 Nc7 Qa8 Rh4 Qg8 Nc3 Kc4 Ne6 d4 Nd8 Kb4 Rc7 Kc4 Nh3 f2 Nf4 f1B Ne4+ Kb4 Qb1+ Kc4 Bb2 Kb3 e3 Be2 Bf1 Bd1 Be2 Bc2 Bd1 Nf6 Bh5 Ng4 Qg1 Bb1 Qg2 Nh2 Bc3 Ng4 Bb4 Kb2 Ba5 Ba2 Rf1 Bb1 Bg6 Ka1 Qf3 Nd6 Be8 Nf7 Rb7 Nf2 Bc7 Nh3 Bb8 Ng1 Rc7 Qf8 Rg4 Qd6 Qg2 Qg6 Qf3 Rf8 h8N Qh7 Ne2 Rg8 Rf4 Rf8 Nc1 Rg8 Kd1 d2 Nd3 Rf8 Ng5 Rg8 Ng6 Rh8 Nge5 Ba2 Kc2+ d1N Qd5 Bb1+ Kd2 Nf2 Nef3 Ng4 Qe5 Be6 Qe4 Bf5 Nc1 d3 Kc3 d2 Nd3 d1B Nd2 Qg6 h7 Bb3 Nb2 Rg8 h8R Qgh7 Bd7 Re8 Nd3 Ree6 Be8 Rh6 Rb7 Rh2 Bd6 Rh5 Rc7 Bc2 R4f3 Bd1 Bg3 Bb3 Rf4
b1bQ1n1B/2RBRr1N/1P1bn3/B1Rb2Br/1R3pq1/k5N1/2P3n1/6Kn b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 c5 f4 exf4 d4 cxd4 a4 b5 axb5 Ra6 Bb2 Ra7 Bc1 Ra8 Kf2 Ke7 e4 Kd6 h4 Kc5 h6 Kb4 h5 d5 a6 f5 a7 g5 b6 f3 h7 f4 h6 g4 e5 d3 e6 d2 e7 d4 e8R d3 Bb2 Ne7 Be5 Nf5 Ra5 Bd6 Rh5 Nd4 Bf6 Qd7 Bg2 g3+ Kf1 f2 Bd8 Qg4 Nc3 Nd7 Ne4 Nf8 Ng5 Nde6 Rc5 Ka3 Bc6 Rb8 Bb5 Rb7 Ne2 Rf7 Kg2 f1N Kg1 g2 Rc7 Ng3 Ree7 Nh1 Bd7 Qh3 Ng3 Qg4 Qe2 d1B Qd2 Bf3 a8R+ Kb2 Raa7 Bd5 Ra4 Ba8 Qd1 d2 Rac4 Ka3 Rb4 Rg8 h8B Rg6 h7 Rh6 Kh2 g1N Bc3 Nf3+ Kg2 Bd5 h8B Nh4+ Kg1 Ng2 Nh7 Ba8 Rhc5 Rh5 Rb1 Bd5 Ba5 Ba8 Rb4 Bd5 Qe2 d1B Qd2 Ba8 Re8 Be2 Bg5 Bef3 Qd4 Bfb7 Qf6 Be4 Qd8 Bed5 Re7
N1R2q2/1rB2B1P/N2N1q1n/4bN1P/2Bp3Q/1n6/2K2nn1/bBn1R1bk b - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 h5 gxh5 cxd4 Bh6 d3 Be3 Ra3 Bc1 Ra8 f3 d5 Qd2 e5 Qg2 b5 Qg5 d4 Qd2 Bb7 Qd1 Bd5 exd5 e4 Nc3 e3 Nb1 Ra7 Bb2 Re7 Bc1 Re4 fxe4 Rh6 Bb2 Rh7 Bc1 Rh8 h4 Kd7 c4 Kd6 a4 Ke5 d6 Kf4 d7 Kg3 e5 g5 a5 f5 a6 d2+ Ke2 b3 Kd3 f4 h6 g4 h5 b4 h7 f3 a7 e2 a8N e1B e6 f2 e7 b2 e8B b3 c5 Na6 c6 Nc5+ Kc4 Bd6 c7 Qf6 c8B Nh6 d8N Nd3 Nb7 Be5 Bh3 f1N Na3 b1Q Be6 b2 Kb3 Ne3 Nc4 Ng2 B8f7 Rb8 Nd6 Qa2+ Kc2 Qa3 Bc4 b1N Qe2 d1N Qe4 N1f2 Nc5 Bc3 Nf3 Nd2 Na6 Nb3 Re1 Rb7 Nh4 Kh2 Nhf5 g3 Bf4 Ndc1 Ra2 Qc5 Ra5 Qb4 Rc5 Ba1 Rc8 Qc5 Bd2 Qa3 Ba5 Qc5 Bc7 Qb4 Re2 Kh1 Qh4 Qc5 Nb5 Qf8 Nbd6 Nf4 Re3 g2 Re1+ g1B Bhf1+ N2h3 Bfd3 Ng2 Kd1 Qe6 Bb1 Qf6 Qg3 Nf2+ Kc2 Q6h8 Qg5 Qf6 Qh4+
b2q1b2/2b1N2q/1b3QBp/4RR1b/bN1N4/1rkN2KR/1q1PPR1B/1n6 b - - 0 1 illegal: Other
nb4Nq/p1qB1QR1/1bBNB2n/1K2P3/r5P1/1pqR1Bk1/5RRr/4b3 b - - 0 1 illegal: No possible last move, all moves rejected
2N4N/1bkp1P2/2pnbBqb/Q1BN2BR/PK4b1/8/2R1rr1r/3n2NB b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 g4 b5 gxh5 e5 d4 exd4 b4 axb4 cxb5 Rh7 Qa4 Rh6 Qd1 Rh8 Kd2 g5 h4 d3 a4 b3 Kc3 d2 f4 g4 f6 g3 h6 g2 b6 b2 b7 Bg7 f5 Bf8 h7 Bg7 h5 Bf8 h6 Nc6 b8N Nce7 Rh5 Bb7 Ra2 Nc8 Na3 b1B Nc6 Nd6 Nc4 Ne7 Qe1 d1B Rc2 Bg4 Kb4 Ba2 Na7 c6 Nb6 Be6 Bg5 Qc8 f7+ Kd8 f6 Kc7 Qd2 Qe8 Nac8 Nef5 Be2 Ne3 Bf3 Bg7 f8B Qg6 f7 Nd1 Bfe7 Re8 h8N Ra5 h7 Bh6 Bef6 Rf5 Qd5 Re7 Qa5 Re8 Bd5 Rf2 Bd4 Re7 Bc5 Re8 Nh3 g1R Bh1 Rgg2 Ng1 Qd3 Ng6 Re7 h8B Rh2 Bhf6 Re8 Nh8 Qg6 Na7 Bd5 Nac8 Ree2 Bcd4 Ba2 Bc5 Bae6 Nd5+
1R1k2rB/2Np3K/B1np2B1/3N2Pn/3Bn1b1/2N1R1n1/1q1N3P/1q1br1Q1 b - - 0 1 legal: proof: d4 e5 f4 b5 a4 Ne7 axb5 Ng8 d5 Na6 d6 cxd6 Ra3 Nb8 Ra2 Qe7 Ra1 Qd8 g3 exf4 Qd5 h5 Qd1 h4 gxh4 Bb7 Qd3 Ba6 Qd1 Bc8 Kf2 g5 Ke1 g4 Qd3 Be7 Qd1 Bg5 hxg5 Rh7 Bh3 Rh4 Bf1 Rh8 Kd2 a5 Kd3 f5 e4 a4 b4 a3 c4 g3 b6 a2 c5 g2 e5 f3 b5 f2 b7 f4 Ke4 f3 Kf5 Qa5 Kg6 Rh4 c6 Rh7 e6 Qa3 c7 Ke7 b6 Rh5 Ne2 g1N Bb2 Nf6 Nd2 Nc6 b8N Ba6 c8N+ Kd8 b7 Rh8 Rb1 Nh3 Nb6 a1Q Nd5 Nh5 Bc3 Bc4 Na6 Rg8+ Kh7 Bb3 b8B Ba4 Rb4 Q3b2 Nac7 Bb3 Be5 Qac1 Nec3 Ra1 Bc4 f1B Ba7 f2 Ba6 Be2 Re1 f1N Bad4 Bg4 Re3 Nf2 Bh8 Nfg3 Qg1 Nfe4 Rb6 Qcc2 Rb7 Re1 e7+ Kc8 e8B Kd8 Bg6 Qcb1 Rb5 Bbd1 Rb8+
4kqn1/1b6/B3Rq2/1n1N1p1R/2P1PqN1/p4n1Q/1bNR3R/2rBNn1K b - - 0 1 legal: proof: f4 b5 a4 a5 axb5 e5 d4 f5 g4 c5 g5 Ra6 fxe5 cxd4 Be3 Rf6 gxf6 h6 Bg5 hxg5 Kf2 d5 Kg2 d3 b4 a4 e4 d2 h4 a3 b6 g6 e6 g4 b5 g5 h5 d4 f7+ Ke7 b7 g3 b6 g4 h6 d3 h7 Qd6 Rh2 Qf4 Ra2 Nc6 b8N Qd6 b7 Kd8 Qf3 d1N Nd7 d2 b8R Qd4 Nf6 Bg7 f8N Ne3+ Kh1 d1Q Rb6 Qc1 Nc3 Bb7 Ncd5 Na7 Ba6 Nf1 c4 Qf4 Rad2 Nb5 Qd3 Qb2 Nf3 Qa1 Ne1 g2+ Kg1 Qae5 Qh3 Qa1 N8d7 Qd4+ Ne3 Qdd6 Nfd5 Qf8 e7+ Ke8 N3c2 Bb2 Re6 Qf6 Qf3 Qf8 Ne5 Qf6 Kf2 g1N Kg2 g3 Qe3 Nf3 Ng4 Kf7 e8B+ Kf8 Kh3 g2 Bh5 g1Q Qc3 Qc5 Kg2 Nfd4 Qh3 Nf3 Be8 Qcd6 Bc6 Kf7 Kh1 Qf8 Bd7 Nd6 Ba4 Nb5 Ne7 Ke8 Nd5+ Ne7 Bb3 Rg8 h8R Rg7 Rc6 Ng8 Rh5 Rd7 Ne7 Rd3 Nd5 Rc3 Re6+ Kd8 Nce3 Rc1 Bd1 Kd7 N3c2 Kd8 Ne7+ Ke8 Nd5+
2bbK1R1/Bk1NRPbB/2P1b3/Q2b4/6R1/pn1r3b/1nRpB3/1qNB4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 Kh5 a5 f4 e5 g4 a4 c4 a3 b4 h6 Kg6 e4 Kf7 h3 b6+ Kb7 c5 h5 g5 h2 f6 h4 g6 e3 b5 d3 f5 d2 g7 h3 Ne2 d4 Qe1 d1B Nd2 d3 Nb3 Bc2 Rg1 h1B Rg4 h2 Ra2 Rh3 Qa5 Ne7 g8B Ng6 Bh7 Bg7 Bd2 Nd7 Nec1 e2 Be3 e1B Be2 Bb1 Rc2 d2 Bd4 Qc7 Ke8 Nge5 f7 Ba2 f8R Nd3 f6 Bd5 f7 h1B Rg8 Bhg2 Be3 Bh4 c6+ Kb8 b7 N7c5 Bd1 Ra6 Bd4 Ka7 b8R Nb2 Rb7+ Ka8 Bf2 Bd8 Bg1 Qe5+ Re7 Qe1 c7 Kb7 Bf2 Rc6 Be3 Ne4 Ba7 Rd3 Be2 Bh3 Nc5+ Ka8 Nd7 Nc5 Nb3 Qb1 Nc1 Bb7 c8B Nb3 Nb8 Ba6 Bcf5 Bc8 Nd7 Be6 Be4 Kb7 B4f3 Nc5 Bd1 Bad5 Bfe2 Nb3 bxc6+
3bN3/Bb1R1q2/1k1bQ1nR/2q5/3P1pn1/3nbB1B/1p1R1P1N/1KBR2q1 b - - 0 1 legal: proof: h4 f5 b4 g5 e4 a5 g4 b5 a4 h5 Nf3 d5 Ng1 f4 Rh3 c5 axb5 cxb4 Rh2 Rh6 Rh1 Rf6 Bg2 Rf5 Bf1 dxe4 gxf5 g4 Ra4 Ra6 Ra3 Rg6 Ra1 Rg5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 c4 Kd7 b6 Kc6 c5 e5 g6 h4 b7 e3 d3 h3 g7 a4 f6 e4 f7 g3 Qb3 g2 Kd1 a3 Kc2 h2 Qa2 b3+ Kd1 e2+ Kd2 e1N Nc3 Qd4 Nb5 Nd7 b8B Ne5 Nd6 Nf6 g8R Bb7 Nf3 g1Q Be2 Nfg4 Rg7 Ng6 Ne8 Bd6 f8R e3+ Kd1 Qd5 Rd7 Qf7 Rb1 Kb5 c6 Ka5 c7 Kb6 Qd2 a2 c8B a1B Qa2 Bg7 d4 b2 Qe6 Bf6 Rh8 Nd3+ Kc2 Bh4 Rh6 Bd8 Bd1 e2 Ra1 e1B Kb1 Nb4 Ra3 Bd2 Rd3 Be3 Rd2 Nd3 Be2 Qg2 Rhd1 h1Q Nh2 Qd5 Bf3 Qe5 Bg2 Qg1 Bh3 Ba6 Bb7 Qc5 Bf3 Bb7 Ba7+
qRk3Nn/8/P3r3/pn2R1n1/1p1n3R/BP1Bn3/1bpK1QbR/2B1N1B1 b - - 0 1 legal: proof: c4 a5 f4 g5 h4 gxh4 a4 d5 b3 Qd7 f5 Ra6 cxd5 Qb5 f6 exf6 axb5 f5 bxa6 f4 Ba3 b6 Bc1 b5 d4 Kd8 e4 f5 g4 c5 d6 h5 d5 b4 g5 c4 g6 f3 g7 f2+ Kd2 h3 d7 c3+ Ke3 c2 e5 h4 e6 h2 Ne2 h3 Nec3 f4+ Kd3 f3 Bb2 Nh6 g8R Bb7 Kd2 Nf7 Qe1 Rh6 Bd3 Nc6 Ba3 Nd4 Ne4 Nb5 Nf6 Nh8 e7+ Kc7 d8B+ Kc8 e8R Bg7 d6 f1N+ Kc1 f2 Nd2 Be4 Re5 Ne3 Nf3 f1N Qf2 Nd2 Ne1 Nf3 Rge8 Bb7 Ng8 Ng5 Kd2 Bg2 Rd1 Re6 d7+ Kb8 Bf6+ Kc7 d8B+ Kc8 Bfe7 Bf6 Bc5 Bg7 Rg1 h1N Ra1 Ng3 Rh1 Ne2 Rh2 Bf6 Bd4 Bg7 Bdb2 Ned4 Bc1 Bf6 Bb6+ Kd7 Rh1 h2 Rb8 Bg7 Rf1 h1Q Rb1 Qh3 Rh1 Qf3 Rh2 Qa8 Rh4 Bh1 Qf5 Bd5 Nf3 Nd1 Re3 Nc6 Bcb2 Nf2 Rbh1 Ng4 Ne1 Bg2 Bc1 Bb2 Bc5 Kc7 Re5 Kd7 Be3 Ncd4 Bg1 Ne3 R1h2 Kc7 Qf2 Kd7 Rb7+ Kc8 Rb8+
B1bbR1Rq/K2B2b1/b2k2pn/1PB2Q1R/5P1p/1p1r3N/Rr3q2/2N2B2 b - - 0 1 legal: proof: b4 b5 g4 c5 d4 e5 dxe5 g6 g5 Na6 a4 cxb4 axb5 Nc5 h4 Ne6 h5 Ng7 h6 f6 hxg7 fxg5 Ra5 g4 Ra3 Bb7 Ra1 Bc8 Kd2 Ke7 Kd3 a5 Kd4 d5 Kc5 h5 f4 d4 e4 b3 c4 d3 e6 g3 e5 a4 Be3 a3 Qc2 d2 Nc3 d1B Nh3 a2 Qf5 g2 Ne2 g1B Nc1 Qd7 Kb6 Qd4+ c5 Nh6 g8R Bg7 Rh2 Qb2 c6 Bf3 c7 Bfb7 Bf2 Rb8 Ka7 Ba6 Be3 Rb6 Bc5+ Rd6 Rh1 Qf2 Rh2 Bd7 c8B Rh7 Bb7 Bc8 Ba8 Rh8 Rb1 a1Q Rb2 Rh7 Ra2 h4 Rg2 Rh8 Rg5 Qc3 Bb6 Rd2 Rh5 Rb2 Be3 Qc6 Bd4 Qe8 Be3 Kd8 e7+ Kc7 e6 Kd6 Rf8 Qd8 e8B Qf6 Bd7 Qe5 Rf7 Rd8 Rf8 Qf6 Re8 Qf8 e7 Qh8 Kb8 Qe1 Ba7 Bb6 Rg8 Qf2 e8R Ba5 Be6 Rd7 Bd4 Bd8 Bb6 Re7 Bd7 Re3 Ka7 Rd3 Bc5+
3nr3/2p1R1P1/5p2/b1bp1R1r/4RR1P/BKbBN2b/r2B2NQ/3n2kB b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 e6 axb5 Qd7 d4 Nc6 d6 Nb8 d5 Qd8 f4 exd5 g4 h5 Nf3 g5 Ng1 hxg4 Qc2 g3 Qd3 g4 Qd1 Qg5 fxg5 Bg7 Nc3 Bh6 Nb1 Bf8 Kd2 Kd7 Kc3 Ke6 h4 Ke5 e4 a5 b4 a4 g6 g2 g7 g3 b6 f6 b7 a3 b5 a2 b6 Ra4 d7 Rb4 d8B Nc6 b8R Rh6 b7 Bg4 Nh3 g1R Bd2 g2 Qe1 Na5 Qg3+ Ke6 e5 Kf5 e6 Ke4 e7 Rg6 e8B Nh6 Be7 Ra4 Ba3 Rg5 Nf4 Bc5 Beb5 Nc6 Kb3 Nf5 Nc3+ Kd4 Bbe2 Rh5 Bd3 Ne3 Re8 Nd1 b8R Nd8 Re7 Bh3 Bfe2 Re1 Rf1 g1B Ng2 Bb6 Rf5 Ba5 Bf3 Re2 Rc1 a1B Rb6 Bf2 Rbe6 Re4 Rf4 Bb2 Re5 Bg1 Ref5 Ba1 Bb4 Ra2 Ba3 Bb2 Ne3 Ba1 Bh1 Bf2 Ng2 Bg1 Na4 B1c3 Nb6 Bf2 Nc4 Bg1 Bb1 Be3 Rc2 Kd3 Rb2+ Ke2 Rc2 Bc5 Nce3 Ba1 Rc4 B1c3 Rf7 Re5 Rce4 Re8 Rfe7 Nf2 Ng4+ Kf1 N4e3+ Kg1 Bd3 Nd1 Qh2+
2K5/1N2R1Bp/N1pkP1BN/2q5/5rP1/5B1B/nNrpQrnn/n3R2n b - - 0 1 legal: proof: h4 a5 b4 axb4 f4 e5 c3 g5 hxg5 exf4 Rh2 b3 Rh6 Na6 Rh1 Nb8 e3 b5 e4 b4 d3 Bb7 e5 Be4 dxe4 b2 Ne2 b3 Ng1 Bb4 cxb4 Kf8 Rh6 Ke7 Rh1 Ke8 Kd2 Ke7 Kc3 f5 Kc4 d5+ Kc5 d4 a4 f3 g4 d3 a5 f2 a6 d2 a7 f4 e6 f3 b5 Na6+ Kc6 Nb4+ Kb7 Nc6 b6 Kd6 e5+ Ke7 g6 Qd6 g7 Nf6 Bh3 f1N Nc3 b1N Qe2 f2 Nd1 b2 Nf3 Raf8 a8B Nb4 Nd4 Nh5 Ra7 Nfg3 Nb5 Nf4 Re1 Qc5 Nd6 f1N g8N+ Kd8 e7+ Kd7 Nc4 Na3 Nd6 b1R Nb2 Nh1 Nh6 Nh2 e8B+ Ke7 e6 Na2 Kb8 Nc2 b7 Na1 Kc8 Ng2 b8N Rf4 Bf3 Rhf8 Nb7 c6 Na6 R8f5 Bg6 Rf6 Nd8+ Kd6 Re7 R6f5 Nd1 Rf8 Bb2 Rc1 Bg7 Rc2 Nb2 R8f5 Bd5 Rf2 Bf3 Rf4 Nb7+
8/1p4nq/B1b3BQ/4Rq1R/1kpn2p1/pN1R3N/KP1Br1P1/3RqrB1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 g4 cxd5 Bg7 Bc4 Bh6 Bf1 Bf8 d4 e5 a4 exd4 a5 Nc6 a6 Be7 Qd2 Bg5 hxg5 Nb4 Qc2 Nxa6 Qd2 Nb4 Qd1 Na2 Kd2 Kd7 Kc2 Kd6 Kb3 Kc5 f4 h5 g6 a5 d6 h4 f6 d3 f7 d2 f8B h3 f5 h2 g7 Qg5 d7+ Ne7 g8B Nc3 d8R Nb5 f6 a4+ Ka2 a3 f7 Bd7 Nh3 Nd4 Bh7 Bc6 Ba6 Qf5 Bg6 Kb4 Qe1 Rb8 Qe6 d1Q Nd2 Qe1 Nb3 Rg8 Rd5 Re8 Re5 Rh8 Be3 Rg8 Bfh6 Rgf8 Rf1 h1Q Rf3 Qh2 Bg1 Qh1 Nf4 Qhh4 Nh3 Qhh5 Bg5 Qh7 Qf6 Qf4 Rd1 Nef5 Rg3 Ng7 Rgd3 Qf5 Bc1 Re6 Qg5 Re7 Qh6 Ree8 Ra5 Re2 Re5 Bd5 Bg5 c5 B5e3 c4 Bg5 Rb8 f8R Bc6 Rd8 Rc8 Rdd5 Rf8 Ra5 Qd7 B5e3 Rf1 Rh5 Qe6 Rae5 Qf5 Bd2+
1nr5/1n1pK3/R2Pnr2/2QpRR2/1Bp1q1B1/pBp2r2/P5RN/2B1kN2 b - - 0 1 legal: proof: d4 b5 f4 f5 c4 bxc4 e4 e6 exf5 Ba6 f6 Bd6 g3 Bc8 d5 Be7 d6 Bf8 Qd5 exd5 h3 g6 f5 Bh6 Rh2 Bg5 Rh1 Bf4 gxf4 g5 Nf3 g4 Nd4 g3 Rh2 Bb7 Ne2 Bc6 Rh1 Ba4 Ng1 Bc2 Nd2 Bd1 Nb1 Bg4 hxg4 Kf8 Kd1 Kf7 Ke1 Ke8 Ke2 Kf7 Kf3 c5 b4 a5 b5 h5 g5 g2 g6+ Ke8 g7 Kf7 b6 a4 b7 a3 Rh2 h4 Kg4 h3 Kg5 c3 Nf3 g1R+ Rg2 h2 Bc4 h1N Bb3 c4 Nbd2 Ra7 Nf1 Rh7 N3h2 Na6 b8B Ne7 Bc7 Qf8 Ba5 Rh3 Bb4 Nf2 Rb1 Nc6 g8B+ Ke8 Ra1 Nab8 Be6 Ne4+ Kg6 Qe7 f7+ Kf8 Rb1 Ra6 Rb2 Rh1 Rbe2 Nc5 Re5 Qe8 Kg5 Kg7 f8R Nd8 f6+ Kh7 f7 Ra8 Kf6 Kh6 f5+ Kh5 Rfg8 Kh4 f8R Rf3 R8g5 Qg6+ Ke7 Ndb7 f6 Qe4 Bg4 Ne6 f7 Rg1 Rgf5 Rh1 Ne3 Rhf1 Rc8 R1f2 f8Q Rf1 Rc6 R1f2 Qc8 Rf1 Rc2 Kg3 Ra6 R1f2 Bd2 Rf1 Qc5 Kf2 Bc1+ Ke1 Rg2 R1f2 Rh5 Rf6 Nef1 R2f3 Rb6 Na6 Rhg5 Rc8 Rgf5 Nb8 Ra6
B3qn2/K4N2/bQRRn1nN/n1P1q1Rn/2Pb4/5RN1/2k1r2N/1bB3rq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kf2 Ke7 b4 Ke6 c4 Ke5 g4 Ke4 e3 h5 b6 d5 g5 f5 g6 a5 b5 h3 g7 d4 b7 a4 b6 d3 Qe1 f3 Bb2 h4 Ne2 d2 Qd1 Kd3 e4 a3 e5 h2 e6 a2 e7 h3 e8R f4 Qc1 d1B Nd2 Nd7 b8N Bc2 b7 Bb1 Re6 Qe8 Bf6 Ne7 g8R Bg7 Bb2 Nf8 Rc6 Neg6 Nd7 Bd4+ Ke1 Rh4 b8N Rg4 Bg2 Ba6 Rf1 h1Q Nf6 h2 Nbd7 f2+ Kd1 f3 Ng3 Re4 Ng4 Re2 Nh6 Qg1 Ba3 h1Q Qb2 Qgh2 Qb6 Qh5 Bc1 Qhe5 Re1 Rb8 Ndf1 Rb7 Nh2 f1N Rd6 Nd2 Rf1 f2 Bf3 Rb8 Ba8 Nb3 Rc6 Na5 Rg7 Qee4 Ne5+ Kc3 Nef7 Q4e5 Rg1 f1N Rg8 Nd2 Rf1 Ne4 Rg7 Nf6 Rg8 Nf4 Rg5 N6h5 Rd6 N4g6 Rc6 Be4 Rb1 a1N Rb2 Bf2 Rd2 Bb1 Rdd6 Bg1 Rf4 N1b3 Rff5 Nd4 Rf3+ Re3 Qa7 Kb3 Kd2 Nde6 Qb6+ Ka2 Rd4 Re2+ Kc3 Rd8 Kb4 Bf2 Be3 Kb2 Rdd6 Kc2 Bc1 Bd4 Ka4 Bb7 Kb5 Rc8 Qd8 Ba6+ Kb6 Rb8+ Ka7 Rb3 Rd7 Rd3 Rdd6 Rd1 Qc7 Rg1 Qb6
4bKNq/1kb2Nn1/rN1n4/P1N2P2/R2Q1b2/r5q1/1b1B2bq/B3RBBr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 e5 Kg4 b5 Kh5 c5 f4 Kc7 g4 h3 d4 e4 a4 h2 f6 c4 a5 e3 f7 b3 f5 b2 d6+ Kb7 d5 b4 d7 c3 d6 e2 g5 e1B g6 b3 g7 c2 Bb5 Na6 Ne2 Bg3 Nd4 Bf4 Qe1 Nc5 Ra3 Ne7 g8N Ra6 Nc6 Ne6 Qe4 Ng7+ Kh4 h5 Nc3 b1B Rg1 b2 Bd2 c1B Qd4 Be4 Ne5 b1Q Nd3 Bb2 Na4 Bg2 Nb6 Qa2 Bc4 Qc7 d8B Bd7 Ra4 Nc8 Bf6 Be8 d7 B8d6 f8B Bde5 Bfb4 Nd6 Re1 Rh6 Bb5 Rg6 Be3 Rg3 Bg1 Re3 Bd2 Qb8 Nc1 Ra3 Nb3 Qc7 Bf1 h1Q+ Bh2 Bg3+ Kg5 h4 Kh6 h3 Bg1 h2 Kh7 Bgf4 Kh8 Qc3 Kh7 Qg3 d8N+ Kb8 Nf7 Kb7 Ne7 Qa1 Kg8 Qa2 Kf8 Qa1 Bf2 Qg1 Bfe3 h1R Ng8 Q1h2 Bf2 Qd1 Bg1 Qdh5 Bg5 Qh8 Bc3 Bbc1 Ba1 Bb2 Bh6 Nc4 Bg5 Bc7 Bh6 Nd6 Bg5 Be5 Bd2 Bf4 Nc5+
rN1q4/1q1Bn2b/R2Pb3/2K2BqB/2b2R1P/Q5k1/1nN1Rnbb/2Rr2B1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 d4 Kd6 e4 g5 h4 b5 a4 c5 a5 f5 a6 c4 a7 g4 h6 b3 h7 f3 Ke3 f4+ Kf2 b2 Bg2 b4 Qb3 c3 Be3 c2 Ne2 c1Q Ra5 Nd7 Na3 b1B Ra6+ Nb6 Nc2 Be6 Bh3 Ne7 Qa3 Bg7 Rf1 Be5 Re1 Rg8 h8R Rg6 Re8 g3+ Kg1 g2 Kf2 g1N Bf5 Qd2 Rc1 Rg3 Rf8 Rh3 Rf7 Rh1 Rf6 Qc3 Rf8 Qc5 Rf7 b3 Rf6 Rb8 a8B b2 Bc6 Na4 Rf8 Ra8 Bd7+ Kc7 Rf7 Bd6 e5 Qa5 Kf1 Nh3+ Bg1 f2 Kg2 f1B+ Kf3 Qc5 Ke4 f3 Kd3 Qa5 Kc4 f2 Rf8 Bg2 Rf6 Bg8 e6 f1B Rf7 Bh2 d6+ Kb8 d5 Nf2 Rf8 Ba2+ Kd4 b1Q Rf6 Bh7 Rf7 Nc8 e7 Qb7 e8B Nb2 Re7 Qd2+ Kc5 Qg5 Ned4 Bfc4 Re2 Ne7 Bh5 Bab3 Bc8 Ba2 d7 Kc7 Nc6 Nfd1 Be3 Nf2 Nb8 Rd1 Bd4 Qe8 d8R Qd7 Rf8 Qd8 Bcd7 Bab3 Bb5 Ba2 Kb4 Bab3 Bb6+ Kd6 Be3+ Ke5 d6 Be6 Kc5 Bbc4 Bd4+ Kf4 Bd7 Ng4 Bg1 Nf2 Rf7 Bcd5 Bd3+ Kg3 Rf4 Bc4+ Bf5+
1K4Nq/1N2PB2/2q2q2/1rb1Pq2/1qR2R2/rB1NNk2/1nr1n2B/QbB4b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 b4 a5 g4 f5 g5 h5 b6 h3 b5 a4 c3 h4 e6 h2 b7 d3 e3 a3 b6 a2 g6 h3 g7 d2 e7 Na6 b8B Nc5 b7 Ra3 Be2 Nf6 g8N Nd3+ Kg5 Ke4 c4 d5 c5 f4 Qe1 d1R Nf3 d4 Rf1 h1Q Ne5 h2 Bh5 f3 Bf7 Nb2 Nd3 f2 Nc3+ Kf3 e4 Bf5 Nd5 Rd2 Ne3 Nd5 Bg3 Qc8 b8N Qc6 Nd7 Rc2 Bd6 Nf4 Kf6 Rh5 Ke5 Ne2 Bb8 Qb7 Kd6 Qb4 Kc7 Qg2 Kc8 h1B Bh2 Qg7 Rb1 a1Q Kc7 Qh8 c6 Bh6 Qd1 Bf4+ Kc8 Bd6 c7 Bg6 Qe1 Rb5 N7c5 Bh7 Nb7 Bc5 Kb8 Bg6 Rg1 f1Q c8B Qfh3 Bd7 Qf5 Bde6 Qhf6 Bb3 Qh8 Nf4 d3 Rg4 d2 Nd3 d1Q Qc3 Qf1 e5 Qf2 Re4 Qfh4 Rc4 Q4f6 Bd2 Bh7 Re1 Qd1 Bc1 Qc6 Rg1 Qf1 Rgg4 Qff6 Rh4 Qh3 Rhe4 Qhf5 Red4 Na4 Qa1 Nb2 Re4 Qfd7 Be8 Rd2 Nf4 Qg4 Red4 Bb1 Nd3 Rc2 Bf7 Qgf5 Rf4+
Rq3n1b/1kPRb1B1/B4b2/4R2q/KBbN1b1P/Q5r1/q1Nn2r1/R3B2n b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 g5 h4 a5 b4 d5 c4 Kd7 Kc2 Kc7 Kb3 e5 f4 e4 b6+ Kb7 c5 d3 f6 a4+ Ka3 g3 b5 g2 f5 e3 f7 g4 f6 g3 Qb3 e2 Bd2 e1B Ne2 g1B Bc1 d4 Nbc3 d2 Qc2 d1Q Qb1 d3 Ne4 d2 Qb2 g2 Qc3 Nd7 Ng5 Be3 Ne6 g1Q N6d4 Be7 f8B Qg2 f7 Bf4 Nc2 Ngf6 Bg7 Nf8 Ned4 Ne4 Bd3 Beg3 Re1 Qh5 Re3 d1N Bd2 Qe8 Be1 Nd2 Re5 Be6 Qb4 Nf2 c6+ Kb8 c7+ Kb7 Qc5 Nh1 Kb4 a3 Be2 Ng6 f8B a2 Qd6 Rb8 Ka4 Bc4 Qa3 Rg8 Bf1 Bf6 Bb4 Nf8 Bd3 B4g5 Bf1 B3f4 Be2 Ka8 b7+ Ka7 Bf1 Ra8 Bd3 Qb8 b6+ Ka6 Bh8 Rg6 Bg7 Be7 Be2 Bgf6 Bd3 Rg3 Be2 Qd8 b8R Ra7 Ra8 Qb8 b7 Qd5 Rc1 a1B Rd1 Bd3 Rc1 Qa2 Rb1 Bb2 Ra1 Bc4 Bd3 Qc8 b8R Qb7 Rd8 Qb8 Ra5+ Kb7 Rd7 Ra6 Be2 Re6 Bf1 Re2 Re5 Reg2 Be2 Bd5 Bb5 Bc4 Ne6 Bc3 Ned4 Rh3 Nb3 Qh6 Re6 B6e5 Bf6 Qh5 Bh8 Bg7 Re3 Bce5 Nbd4 Rhg3 Re4 Bgh6 Bf6 Bg7 Re2 Bh8 Bg7 B5f6 Re4 Rg5 Re5 R5g3 Ba6+
4bBB1/2K2QR1/N3bnbN/2PR1n1b/3BkPNb/N1rB4/r5q1/1b1n1b2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 h5 Kc4 d5+ Kc5 b5 f4 b3 a4 d3 c4 b4 g4 e5+ Kb5 d2 a5 d4 c5 e4 a6 e3 g6+ Kf6 a7 h4 g7 e2 Qe1 d1B Be3 d3 Ra4 d2 Nh3 b2 Bf2 b3 Ng5 h3 Bh4 h2 Rg1 h1B Bg3 Rh3 Bf2 Be7 Nf3 Nc6 Ra5 Bg2 Ra6 Qd5 Kb6 Nd4 Ne5 Be6 Kc7 Rc3 Na3 b1B Rd6 b2 Rd7 Qf3 Rd5 Ba4 Qd1 e1N Bd3 Qh3 Qb3 d1B Qb7 Bf1 Rg3 Nb3 Bd4 Be8 Rg2 Nc2 Rg1 Nh6 g8B Ne3 Rg2 Nd2 g5+ Kg7 g6 Kf6 g7 Ne4 Rg3 Bdh5 Rg2 Nd1 Rg5 Rb8 a8N Bc2 Qb3 b1B Qa2 Rb2 Rg1 Qg2 Qc4 Bf8 Ng4+ Ke7 Qa2 Nf6 Be2 Bc8 Bh7 Bed7 g8N+ Kf7 Re5+ Qd5 Kd8 Bg7 Nc7 Ne4 Na6 Be8+ Kc7 Bf6 Nf2 Bh4 f6 Bcd7 Reg5 Ke6 f7 Nf6 f8B Bd3 Rg7 Bdg6 Bd3 Bc8 Qb3 Ra2 Rg5 Bcd7 Ng4 Bc8 Kb8 Bcd7 Qb7 Qg2 Rd5 Bc8 Rd8 Nf5 N8h6 Bcd7 Qc7 Kd5 Qa7 Kc6 Bg8 Bc8 Qf7 Be6 Bd6 Kd5 Kc7 Ba4 Bf8+ Bd7 Be2 Ke4 Bc4 Ba4 Rd5 Be8 Bd3+
br1B3N/r4nnr/B5q1/B1R3Pk/2NRBq2/n3qbP1/K4b2/1N2qQN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 h5 b4 a5 c4 f5 Kc2 Kf7 Kb2 Kg6 e4 d5 c5 h4 b6 h3 b7 d3 c6 f3 c7 d2 g3 a4 e5 f4 b5 a3+ Ka2 f2 b6 f3 e6 d4 e7 d3 e8N h2 Qe1 d1B Bh3 f1Q Qe4+ Kh5 Nd6 d2 Nc3 f2 Nc4 Qe8 Bf5 Na6 b8N Qg6 b7 Nh6 Qf4 Ra7 Bc2 Nf7 Rb1 Bf3 Ka1 d1Q Nd7 a2 b8B Qd2 Qf6 Bcb7 c8B Ba8 Be4 Nc7 Nde5 Qe3 Bd2 Ne6 Rc1 Bc5 Ba6 Ng7 Bc7 Qfe1 Nb1 f1Q Bda5 Rb8 Bd8 Bb6 Kb2 a1N Ka2 Nc2 Rd1 Na3 Rd4 Bg2 Qf5 Qff4 Qf6 Bf3 Qf5 Qd6 Ng6 Bc5 Nh8 Qg6 Ne2 Bb6 Rf1 h1R Ng1 Q1c3 Rfd1 Qee1 Rd5 Bf2 Rc5 Qce3 Qf6 Kg4 Rd4 Rh7 Qf5+ Kh5 Qh3+ Qh4 Qg2 Qhf4 Qf1
b2R3b/q1k3Pn/rqrBP2b/1rR2q2/Q1rN2B1/4n2B/1B1n4/KR4NR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 a5 c4 d5 Kc2 Kd7 e4 h5 g4 f5 b4 f3 Kb2 h4 g6 h3 g7 f2 g5 d3 c5 a4 g6 d4 c6+ Kc7 e5 d2 e6 h2 Ka2 f4 Bc4 f1Q Na3 d3 Bd5 f3 Qe1 d1N Be3 f2 Bf3 d2 Bg2 Rh4 Bc5 Na6 Bh3 Ne3 Qb1 d1R Nc2 a3 Nd4 Nf6 g8B Bb7 Qc2 Nh7 Bf7 Rc1 Qa4 Bh6 Rb1 Ra7 Ka1 a2 Bf8 Nc5 Bg7 Ne4 Bf6 Ra6 b6+ Kd6 c7 Ba8 c8R Rc6 b5 Nd2 b7 Qb6 Rd8+ Kc7 b8R Qe1 Rd5 f1Q Rbd8 Qf5 Rc5 Qef2 Be8 Qa7 b6+ Kb7 Rd6 Kc8 b7+ Kc7 Rd8 Qb6 Nb3 Rc4 Nd4 Qa7 Kb2 a1B+ Ka2 Qb6 b8B+ Kb7 Bd6 Bc3 Bde7 Kc7 Bg7 Qa7 Bf7 Bb2 Bd6+ Kb7 Nb5 Nf3 Re5 Qd2 Rc5 Qa5 Bd4 Q5b6 Bh8 Ba3 Ka1 Bb4 Be8 Be1 Bc3 Bg3 Bf7 Be5 Nd4 Bh8 g7 Qc2 Be7 Qf5 Bh5 Kc7 B5g4 Rb4 Nge2 Rb5 Rhf1 h1R Bb2 Rh2 Rh1 Rg2 Nc3 Rc2 Nce2 Rc4 Ng1 Nd2 Bd6+
2q1B3/Q2rPbrk/1n1R2Nb/B2r1b2/2n2R1N/2q1RBq1/K1P5/2qn1B1R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 e4 h5 g4 a5 b4 f5 b6 Kf7 e5 Kg7 b5 d3 Kc3 f3 Kb2 h4 g6 d2 e6 d4 e7 d3 b7 a4 g5 a3+ Kb3 a2 b6 h3 Bg2 h2 Bf1 f2 Bb2+ Nf6 Bg2 f1B Bc3 f4 Nh3 f3 Ba5 f2 Bf3 Ra7 Nf4 Nc6 b8R Nd5 b7 Nb6 Qe1 d1Q Nd2 Qc1 Qe3 Rg8 Rb1 Qe1 Rd1 a1Q Qc5 Kh8 g7+ Kh7 Ng6 Qc3+ Ka2 Ne5 Ra8 Bf5 b8R Nec4 Qe3 Nc8 Rb3 Rd7 Qa7 N8b6 Rb8 Qc8 Rb4 Ne5 Rf4 Nec4 Ra8 Qe3 Re1 Qee5 Re3 Be2 Rb8 f1R Rb7 Rd5 Rd7 Rd1 Rd6 Bf1 Bg2 Be2 Nf3 d2 Nfh4 Beg4 Bf3 Bh5 Nh8 Bf7 N8g6 Rg1 Ng2 d1N N2h4 Rh8 g8B+ Kg7 Rg4 Qg3 Rf4 Rh7 Nh8 Rg2 g6 Rh5 Bh7 Rg5 Bg8 Rgd2 Bh7 Kh6 g7+ Rg6 g8B R2d4 Rd8 Rg7 Bg6 Rd7 Bgh5 R4d6 N8g6 Rd5 Rhe1 h1Q Rf1 Qhh2 Rh1 Qhd2 Bh7 Qc1 Bg8 Rb7 Rd6 Rc7 Bh7 Rd7 Bg8 B7e6 Bf7 Kh7 Be8 Bf7 Bg2 Rg8 Bg4 Bh6 Bf1 Rg7 Bf3
q1b4Q/1N2B1br/r3N1K1/r1R1rP1r/nR1N1R1N/1b2R2B/2P1b2k/b2n4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 b4 h5 f4 e5 g4 d5+ Kf3 d3 b6 a4 b5 d2 b7 a3 b6 h3 Bc4 h2 Nh3 h4 Be2 d4 Ke4 a2 Ng5 d3 Bf1 h3 Ne6 Nh6 Nc3 Na6 b8N Rh7 b7 Bg7 Nc6 Qf8 Rb1 a1B b8R Qh8 Rg1 h1R Na5 h2 R1b5 Qd8 Qe2 d1R Ba3 d2 Bh3 Ra7 Nb7 Nc5+ Ke3 e4 Rf1 Na4 Rc5 Rb1 Nb5 d1B Nbd4 Rb6 Rf2 Rba6 g5+ Ke7 g6 Kf6 Qb5 Be2 Qe8 Ra8 Qh8 Ng4+ Kd2 Qg8 Rf3 Nf2 Re3 Nd1 Bb4 Ke7 f6+ Kd7 f7 Rh5 Na5 Kd6 f5 Qe8 f8N R8a7 Rcc3+ Ke5 Be7 Qc6 Rb4 Qa8 Nb7 Ra5 Nf4 R7a6 Ng2 Rh7 Nh4 Kf4 Rc5 Rh5 Rec3 Rh7 R3c4 Kg3 Nfe6 e3+ Kc1 Be5 g7 Bf6 g8R+ Bg7 Nhf3 Rg1 Rc3 h1B Nh4 Kh2 Rd8 Rg5 Re8 Bd3 R3c4 e2 Kd2 e1R Ned8 Ndc3 N8e6 Be2 Ke3 Rgh5 Kf4 Bg2 Rb3 Nd1 Rbb4 R5h6 Kg5 Rh5+ Kg6 Bd5 Rc3 Bb3 Rf3 Bf1 Rf4 Re5 Rd8 Be2 Rdd5 Kg1 Rc3 Kh1 Rdc5 Kh2 Re3
2r3q1/1N2rr1B/3r1RR1/2n1NN1R/b1r4P/q1P2nbR/1B1nQ1K1/1Nk4r b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 b4 Kf7 h4 Kf6 f4 a5 Kf2 d5 b6 g5 b5 e5 b7 a4 c3 g3+ Kg2 a3 b6 e4 Qb3 d3 Qb2 d4 Qf2 g4 Nd2 e3 Nh3 e2 Ng1 e1R Qe2 a2 Nc4 d2 Rh2 d1R Nd2 d3 Nh3 Bd7 Nb3 d2 Nf2 Bd6 Nd3 Ba4 Bb2 Nd7 b8R Rh7 b7 Nc5 Ne5 Rf7 Rh3 Rb1 Rc8 d1R Rc6 Rc8 b8N Rbc1 Rb1 a1Q Nd2 Qa3 Na6 Qf8 Ba1 Qd8 Kg1 g2 Rb5 Qf8 Kf2 g1N Nb1 g3+ Kg2 Nf3 Rcb6 Rd4 Ra5 Rc4 Rab5 Nb3 Nc5 Rcd1 Nb7 Nc5 Ra5 Nd2 Rc6 Ne7 Rca6 Ng6 Rb5 Ke7 f6+ Ke6 f5+ Kd5 Rba5 Qg8 Rc6 Rg7 f7 Bc7 f8R Rf7 f6 Bb8 Ng4 Ne5 Ne3+ Ke4 Nf5+ Kf4 Rd6 Nef3 Re6 Ndb3 Rb5 Rd6 Ra5 Nbd2 Rb5 Rh7 f7 Bc7 Rg6 Rg7 Qd1 Re7 Bd3 Bb8 Qe2 Bc7 Rd8 Rh7 f8N Rhf7 Nd7 Bb8 Rf8 Bc7 Nd4 Bb8 Qd1 Ke3 Ne5 Bc7 Be4 Bb8 Qc2 Bc7 Nf5+ Ke2 Qd3+ Kd1 Qe2+ Kc1 Rh2 Rg7 Rff6 Rgf7 Kh3 g2 Kg3 Bb3 Rh3 g1R+ Kf2 Rd1 Kg2 Rh1 Ng3 Bb6 Rg5 Nd7 Nd3+ Kc2 Bh7 Bf2 Rgg6 Ba4 Rh5 Nc5 Ne5 Kc1 Nf5 Bg3 Bb2+
6NR/4rqn1/r1nRb2q/8/4P1bb/1Nq1R1k1/bNbR2PN/1BKbBQ2 b - - 0 1 illegal: No possible last move
nNRr4/n1r1P2R/2R2kN1/QbR1n1b1/1KBN4/1nN1B2r/4P1br/5q1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kd2 Ke7 b4 f5 g4 d5 c4 h5 b6 a5 e6 d3 Kc3 h3 b5 h2 c5 a4 c6 a3 c7 d2 g5 a2 b7 f4 g6 d4+ Kc4 d3 b6 h4 g7 h3 Qe1 d1N Be3 d2 Qh4+ Nf6 g8R f3 Bg2 f2 Qh5 f1B Kb5 Nb2 Na3 d1R Kb4 Nc4 Nb5 Rd7 Rg4 Bh6 Rd4 Ne8 Na7 Bg5 Rd5 Kf6 e7 Ne5 Rc1 a1N Rc3 Nb3 Rdc5 Rh6 Bc6 Bg2 Bd5 Rh7 Nf3 Nbc6+ Ka3 Rh6 b8N Ba6 c8R Bb5 b7 Rc7 Bc4 Qd1 Nh4 Qf1 Ng6 Rh7 Na6 Rh8 b8N Rh6 Nb4 Rh7 Rg1 h1R Nc2 h2 Nd4 Rh8 Qg4 Rh3 Qh5 Ba6 Nab5 Na7 Nd6 Bb5 Kb4 Qf5 Ra1 Qf1 Ra4 Rd7 Ra6 Nc7 Rh8 Rd8 Rac6 Rd7 Rh7 Rd8 Na6 Rac8 Nb8 Na8 Rc2 Rc7 Rc1 Rb7 Rc8 Rc7 Rc2 Bd7 N6b5 Bdc6 Nc3 Bb5 Ka3 Rg1 Kb4 h1R Ra2 R1h2 Ra6+ Rd6 Rac6 Rgh1 Qh4 Rg1 Qe1 Rgh1 Ne6 Rdd7 Qa1 Rd6 Qa5 Rd8 Nd4+
1r3R2/B2P1BB1/3Rrk2/n2n3r/NRr2N1n/7R/1bn2K1P/q1rbBbQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Ke7 b4 f5 d4 g5 e5 a5 b6 c5 b7 c4 e6 f3 b5 a4 d6+ Kf6 e7 c3 e8R f2+ Ke2 c2 b6 a3 d5 f4 d7 a2 d6 g3 Kf3 g2 Bd2 c1R Be3 g4+ Ke2 f3+ Kd2 g3 Bh6 Bg7 Ke3 Nc6 b8B Rc4 b7 Nge7 Na3 Qa5 d8B Bg4 Ne2 g1R d7 g2 Ba7 Rb8 Nb5 Rh7 Rb1 a1N Rb3 Qe1 Bc7 Na5 Nc3 Bh8 Na4 Nc2+ Kd3 Bg7 Bg3 Nd5 Nf4 Bh5 Be2 f1B Rc3 f2 Rf8+ Ke7 Rb3 Bb2 Rb4 Bf3 Rh8 Kf6 Qa1 Re8 b8R Re6 R8b6 Qb1 Rd6 Qa2 Qd1 Qa1 Kd2 Bg4 Bd3 Bf3 Bg6 Bh5 Qe1 Bf3 Bf7 Bd1 Bf8 Rh5 Bh6 Bfe2 Rf8 f1R Qf2 Re1 Rb3 Rgf1 Qg1 Rf3 Ra3 Rb3 Bgf2 Rb8 Rh3 Bf1 Bg3 Re3 Be1 Rec3 Bg3 Nce3 Ke1 Nc2+ Kf2 Bfe2 Qf1 g1N Qg2 Nf3 Rf1 Rh4 Qg1 Rh5 Re1 Bd3 Re4 Nh4 Rd4 Bf1 Re4 Rc7 Rb4 R7c4 Rb3 Ke7 Rb4 Nce3 Ke1 Rc1 Bf2 Kf6 Bg3 Bfe2 Bf2 Bg4 Bg3 Nc2+ Kf1 Bf5 Be1 Bd3+ Kf2 Bf1 Bg7+
K1b1B2B/4Qn2/b4P2/7R/n1nk1qRN/BR1n1R1N/Pn3bb1/2q1rBr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 g4 b5 f4 h5 g5 e5 g6 h3 d3 b3 g7 b2 f6 h2 f7 b4 f5 b3 f6 h4 d6 h3 d7 Nc6 Bf4 Na5 Qc1+ Nc4 Qd1 Nh6 Bg3 Rg8 Nc3 b1B Qc2 b2 Nce2 c6 Qc1 Qc7 d8R Be7 f8B Nf7 Bf4 Bc2 Nf3 b1N Rg1 h1N Rg4 h2 Neg1 Ra4 Nh4 Nc3+ Kf3 Ra7 Bh6 Na4 Rb1 Nf2 Rb3 Nd1 Ke4 Ndb2 Nh3 Ra5 Qf4 h1B+ Qf3 Rb5 Rd7 Bg2 Rd5+ Kb6 Bc1 c5 Bh6 Bd1 d4 Be2 Bc1 Bd8 Bh6 Qd6 Be7 Re8 g8B Kc6 Bg7 Bb6 Bef8 Re6 Bh8 Ba7 Kf5 e4 Qe3 Bd3 Re5 Bb6 Qe1 e3+ Kf4 Rb4 d5+ Kb5 Bh7 e2 Bg6 Qb8 d6 Qc7 Qb1 e1N d7 Be2 d8R Ned3+ Kf5 Kc6 Qd1 Qd6 Re3 Kd5 Qe1 Re4+ Rd7 Kd4 Rf3 Rb5 Ra3 Rb3 Be7 Rc3 Rb3 Rc1 Bf8 Nd2 Be7 c4 Bh5 c3 Bf8 Nfe5 Be8 c2 Be7 Ndc4 Bf8 Ba6 Rh7 Nf7 Rh5 Qg3 Ba3 Bc8+ Bd7 Qh2 Qb4 Re1 Qe7 Rf4+ Ke6 c1Q Rgg5 Rg4 Rg7 Ba6 Be8 Qhf4 Kd7 Bc8+ Kc6 Ncd6+ Rc3 Bh1 Rg8 Rg1 Rh7 Ndc5 Rb3 Bea6 Qe6 Bg2 Qd7 Ke5 Rg4 Ndc4 Rh5+ Ke4 Qd6 Ncd3 Qd7 Bf2 Qe7+ Nde5+ Kc7 Kd4 Kb8 Ned3+ Ka8
3Nb1Nn/nP5k/bqnr2B1/qbrNB2b/7P/2B5/1B1n4/N1bQ1RRK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kg2 Kf7 e4 d5 h4 a5 c4 g5 b4 Kg7 b6 f3+ Kh2 a4 h6+ Kh7 e5 g4 b7 a3 e6 f4 c5 a2 b5 d3 e7 d4 e8N f2 b6 g3+ Kg2 d2 c6 d3 c7 Ra6 Qg4 d1N Qg5 d2 Qf6 Nc3 Qc6 d1B Be2 Nb5 Bc4 Na7 Nh3 Ne7 Qd6 Nbc6 b8B Bh5 b7 Ng6 Nd2 Bd7 c8N Qa5 Nc7 Be8 Rf1 f3+ Kh1 Bg7 Rg1 f1B Nf4 f2 Ncd5 Bb2 Nce7 Ba3 Bb3 Bb5 Ne6 f1B Ng8 Bb2 Rb1 a1N Nd8 Ba3 Ba2 Nb3 Bb2 Bfd3 Rbf1 g2+ Kh2 Rb6 Bc3 Bc1 Bc7 Nc5 Nb3 Ne4 Na1 Nd2 Bb2 Ba6 Bc3 Bdb5 Qd7+ Nce7 B7e5 Rd6 Qg4 Nec6 Qd1 Ba3 Nf4 Bc1 Bf7 Nb4 Nd5 Nbc6 Nge7 Rf8 Ng8 Nh8 Be6 Kg6 h7 Rf4 Bb2 Rc4 Bec3 Rc5 Be5 Nf7 h8B Kh7 Bhg7 Nh8 Bf7 Bf3 Bec3 Bh5 Bge5 Rc4 Rh1 g1Q+ Kh3 Qg4+ Kh2 Qd4 Rhg1 Qdb6 Kh1 Rc5 Bg6+
1Q1k1nN1/1PRBn3/4q1R1/1PK1b1B1/3NRr2/1b2Nr2/1qb1n1b1/n1R1N1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 d4 h5 b4 f5 g4 c5 e4 f3 Ke3 f4+ Kd3 h3 Kc4 f2 b6 f3 b7 a4 g5 h2 g6 h4 b5 a3 g7 h3 d6 a2 e5 Bf5 d5 Bc2 e6 Qe7 d7+ Kd8 Bg2 f1B+ Qe2 f2 Bg5 Ra3 Bh4 Rf3 Bg5 Rh4+ Bf4 Qf6 Nd2 Bd6 Rc1 Ne7 g8N a1N Qd3 Be2 Nf1 Bed1 Ne3 f1N Qc3 Qf5 Qh8 Ng3 Bf1 Qg4 Bd3 Be5 Bf5 Qg7 Bg4 Ne2 Bg5 Kc7 d8R Nd7 Ra8 Nf8 Ra6 Kd8 d6 Qf7 d7 Bb3+ Kd3 c4+ Ke4 c3 Rb6 Rf1 Nf3 c2 Ne1 Rf3 Rc6 Qe8 Rg1 h1B Rc7 h2 Rg3 Bg2 Kd3 Ba4 Kc4 h1Q Kc5 Bb3 Qh7 Bc3 Bh6 Bg7 Rc6 Neg6 Nd3 Bc3 Rb1 Qf7 Qg7 Qf1 Qe5 Qe1 Bf5 Qd2 Rc1 Rhf4 Ne1 Ne7 Rg7 Neg6 Bg5+ Qe7+ Rd6 Kc7 d8N Bb2 Nc6 Qd7 Nce7 Kd8 Rc6 Qc8 Qb8 Bf6 Rc7 Qd4+ Kc6 Qb2 Kc5 Bc3 Bg4 Bf6 Rb1 Bc3 N7f5+ Bf6 Nd4 c1B Nd5 Be3 Rc1 Bg1 Ne3 Bdc2 Bh3 Nh4 Rg6 Nf5 e7+ Ke8 Rc6 Kd7 e8R Bg7 Re7+ Kd8 Re5+ Ne7 Re4 Bf6 Rc7 Be5 Qa7 Qf5 Bg4 Qf7 Bd7 Qe6 Qb8#
3nN1bk/3QB2n/BnbN1N1B/2b2rPP/3b1rq1/3BqR2/4r3/1K1NRn2 b - - 0 1 illegal: No proof kernel
2Bk1r1R/5bNb/N1QP2P1/nb6/1brq2q1/N4Nr1/5BB1/BqqRn2K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 f5 b4 a5 d4 c5 e4 h5 g4 a4 Kg2 a3 b6 h3+ Kh2 c4 e5 c3 b5 h4 g5 a2 e6 f3 d6 f4 d5 f2 b7 f3 e7 c2 b6 Na6 b8N Be6 b7 Bf7 Qd4 Qd7 Qe3 Qg4 Qc3 Nc5 Be3 c1Q Qd4 Ra3 Na6 Nd3 b8B Ne1 Bc4 f1Q Bd3 f2 Bc4 Rc3 Be2 Rc4 Nf3 Kd7 e8B+ Kd8 d7 Bb4 Qd2 Ne7 Qc3 Nc6 Na3 Na5 Be5 Rf8 Rb1 a1Q g6 Bg8 Bd3 Bh7 Be4 Qab2 Qc2 Qd4 Qa4 Qfd3 Qc6 f1B Bf2 Be2 Ra1 Qdb1 Bf7 Bf1 Be6 Bd3 Rf1 Be2 Kh1 h2 Rg1 Rc5 Ra2 Bb5 Rd2 Rc4 Rd1 Qc5 Ba1 Qd4 Rg3 Nc2 Kg2 h1B+ Kh2 Ne1 Rh3 Bg2 Kg1 Bf1+ Kh1 Bd3 Rh2 h3 B6f5 Bc2 Be6 Bb3 B6f5 Ke7 d8N Ba2 Bc8 Bb3 Rg2 h2 Ne6 Ba2 Ng7 Kd8 d6 Rc5 Ng1 Bf7 Rg3 Rc4 Nf3 Nc2 Kg2 h1R Bd5 Rf1 Kh2 Ne1 Rh3 Rg1 Rh4 Rg3 Kh1 Bhg8 Rh8 Bh7 Nh2 Qcc3 Bg2 Qcc1 Nf3
1bq2Bn1/RBb5/QPB1P3/4Bqr1/n2K2bn/kr4n1/1r2R1b1/N2NNN2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 a5 d4 h5 g4 f5 b6 c5 g5 h3 b5 f3 Ke3 a4 g6 f2 g7 c4 b7 h4 b6 f4+ Kd2 a3 Kc3 f3 Bd2 h2 Bg2 f1N Nh3 a2 Bh6 f2 Qe2 Na6 Nd2 Ne3 Rhe1 h1B Nf1 Bg4 b8B+ Qc7 Qd3 Nf5 Re2 Nc5 Bf3 Bg2 e5+ Ke7 e6 Qc8 Be5 Ra5 Be4 Rb5 Bf3 Rb2 d6+ Ke8 d7+ Ke7 d8N Rb3+ Kc2 c3 d5 Na4 Qa6 Rb2+ Kd3 c2 Nb7 c1R Ke4 Rc3 Nc5 Rcb3 Nd3 Rh7 Ne1 Rh8 Bhf4 Rh5 Bh6 Rg5 d6+ Ke8 d7+ Ke7 Bc3 Kd6 d8N Kc5 Nc6 Bd6 Be5 Bb8 Na5 Kb4 Kd5 Ka3 Ke4 Nfe7 Kd4 Ng6 Bb7 Bc7 Nh2 f1N Nf2 h3 Nd1 Ng3 Nf1 h2 Bc6 h1Q Bb7 N8e7 g8B Qh3 Bf7 Nh4 Be8 Ng8 Bec6 Bb8 Rc1 a1B Rc5 Bh5 Bf8 Qf5 Rd5+ Ka2 Rd7 Bg4 Nc4 Bc7 Nce3 Bb8 Re7 Ka3 N3c2+ Ka2 Bh8 Bd5 Ba8 Bg2 Kc4 Rb1 Ra7 Bae5 Na1+ R1b2 Bb7 Bed6 Be5 Bdc7 Bfg7 Ka3 Kd4 Nh5 Bh6 Ng3 Bf8+
1r1R4/3P2R1/1nq1b3/KbbrBrk1/3PR1N1/5rBn/NR1pBnQ1/3r1B2 b - - 0 1 illegal: No proof kernel
BqBB1Qr1/R4K2/1N3N1b/2B1r3/2r3rP/1qnPn3/N2kpNnr/1bR5 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 a4 g5 f4 b3 a5 Kb4 h3 c5 a6 c4 d6 b2 f6 c3 a7 g3 f5 g4 d7 g2 Ke6 g3 f7 c2 f6 Bh6 f8N Na6 f7 Nf6 Qe2 Nc5+ Kf5 e5 Kg6 e4 Nf3 g1R Qd1 g2 Ra3 e3 Nd4 e2 Ra1 Nd3 Nf5 Ng4 Ra5 Ne1 Nh7 Ne3 Nc3 b1Q f8N Qb3 Nd6 Qb6 d8B Qb8 Kf6 Bf5 Nd7 Bg6 Bb2 c1R Nb6 Bb1 d3 Re8 h4 Re5 Nde4 Rc2 Rh3 Rh1 Nf2 g1R Ba1 Rh2 Na2+ Kc5 Qc1 Rc4 Kf7 Rg4 Nf6 N1g2 Ra4 b4 Qa3 Kb5 Bc3 Kc5 Be1 Kd4 Rg3 Nf4 Bh3 Nfg2 Ra6 Qa4 Ra5 b3 Qf8 b2 Bb4 Qb3 Ra4 Bc2 Ra3 b1N Rf3 Nc3 Rg3 Rge4 Bc8 Bb1 Ra6 Rg4 Bbe7 Nf4 Rg1 Nfg2 Rf1 Nf5 Ba3 Ke3 Rc1 Kd2 Bc5 Nfe3 Ra5 Qd6 Bd7 Rb8 a8B Rc8 Ra7 Qb8 Bc7 Rce8 Bc8 Rd8 Qd6 Rde8 Bd8 Reg8 Qf8
3krn1b/1Bb2K2/3bn3/R1R3P1/2qRRbQB/2n1NP2/BN4Bp/1b1qr3 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 g6 a5 Ke2 d5 b4 h5 g4 e5 c4 d3+ Ke3 d2 b6 d4+ Ke2 e3 Kd3 a4 Ke4 h4 g7 a3 b5 h3 b7 d3 c5 a2 c6 e2 c7 e1B b6 h2 Nh3 Ne7 g8B Ng6 Na3 Nd7 Kf5 e4 Ke6 e3 b8R e2 b7 Qh4 Bg2 Bd6 Nc2 Ra5 g5 Nc5+ Kf6 Ra4 Nf4 Re4 Bb2 Re5 Bd4 Re3 Rc1 a1B Ra8 Bc3 Ra6 Bf5 c8B Kd8 Ba2 Rhe8 b8R Ne6 Kf7 Ngf8 Rb4 Bb2 Bc5 Bh8 Ra5 Bc7 Bcb7 Re5 Nd4 Re4 Qa4 d1N f3 d2 Nd3 Beg3 Nc2 e1B Nb2 Bgd6 Bf2 Qf4 Bh4 Bg3 Rf1 Re3 Rf2 Re1 Re2 Qd4 Ree5 Qd5 Ne3 Bb1 Rcc5 Nc3 Rg4 d1Q Qe4 Q5d4 Qf5 Q4d3 Rd4 Bf4 Ree4 Qc4 Qg4
2KNb3/7B/4rbR1/2N1RPq1/RnQ1R1qr/2bBPk1b/rp2b3/4BB1n b - - 0 1 illegal: No proof kernel
3b1q2/2Q1R3/5nRq/p4nPr/NR1R3n/1PNr1Br1/1N1B1k2/Kb1rN2r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 Kd6 d4 a5 Kd2 c5 Kc3 f5 b6 h5 b3 h3 Kb2 h2 b7 f3 g5 c4 Qd3 c3+ Ka2 f4 Qe3 c2 Bd3 h4 Kb2 h3 Be2 f2 Qc3 f1R Bd2 c1R Bf3 Nd7 b8R Rcd1 Rb4 Rh5 Raa4 Ba6 Ka1 Bd3 Qc8 Nh6 e5+ Ke7 e6 Kd6 e7 Nf5 e8R Be7 Qc1 Nh4 Nc3 Bb1 Qc2 Bf6 Re7 Qf8 Qh7 Rfe1 Qg7 Re4 Qf7 Rd8 Qh7 Kc7 d6+ Kc6 d5+ Kc5 Rd4 Re2 Rab4 Rg2 Qc2 Rg3 Qc1 Ne5 d7 Ng4 d6 Qh6 Bb7 Qf8 Nf3 Qh6 Rhe1 h1R R1e6 h2 Ne1 f3 Qc2 f2 Bf3 f1Q Qc1 Rb8 d8N Qf2 Nc6 Rd8 Ne5 Rd7 Rf7 Bd8 Rg6 Nf6 Re7 Qf1 Ra4 Qf2 Rdb4 Qf1 Nc4 Kd4 Qc2 Qh3 Qc1 Qe6 Qc2 Qg8 Qc1 Qgf8 Qc2 Rc7 d7 Rc5 Qc1 Re5 Qc2 Re3 Qc1 Rd3 Qc2 Bb6 d8N Bc7 Nb7 Bd8 Nc5 Rf1 Rbb7 Rfg1 N3e4 Rf1 Bb4 Rfg1 Nb2 Ke3 Bc3 Rf1 Rd4 Rfg1 Nca4 Rf1 Nd2+ Kf2 Qc1 h1N Rbb4 Rg2 Qc2 Ng3 Qc1 Ngf5 Ne4+ Kg1 Bd2 Rg3 Nec3 Kf2 Na2 Rfg1 Qc7 Rh1 N2c3
B3b1n1/1n2NQ1R/n2R1Pbn/N1B1B1pq/2K1N2n/1N4Bk/1r2Pb2/3qr3 b - - 0 1 illegal: No proof kernel
3bb2r/3q2p1/n1RB2P1/1BN2n2/N1KNq2R/5r1N/r2QrnPB/kr2B3 b - - 0 1 legal: proof: f4 c5 a4 e5 d4 exf4 h4 b5 axb5 Qg5 hxg5 cxd4 Kd2 Ke7 Kd3 Kd6 c4 Kc5 e4 Kb4 b6 f5 c5 h5 b7 d5 c6 a5 g6 a4 e5 a3 e6 h4 c7 a2 b3 h3 e7 f3 e8N f4 Nd6 h2 Nc3 f2 Nf5 f3 Nb5 Nh6 Rb1 a1Q Ne3 Nf5 Na3 Bd7 c8N Be8 Nec4 Be7 Ne3 Bd8 Nb5 Na6 b8B Qa4 Ncd6 Ra7 Be2 f1R Nb7 f2 Nc4 Re1 Nc5 f1R Nb6 Rf3+ Be3 Ra8 Nh3 Ra7 Bf1 Re2 Bd6 Ra8 Rc1 Ra7 Nc3 Ka3 b4 Kb2 Nb5 Ka2 Rc3 Kb2 Qd2+ Ka1 Na3 Qd7 b5 Qc6 Nba4 Qb7 Rg1 h1N b6 Qe7 b7 Nf2+ Kc2 d3+ Kb3 d4 b8B Ra8 Rh1 Qe4 Kc4 Ra7 Nb5 Ra8 Qc2 d2 Rh2 d1R Qd2 d3+ Nd4 Rde1 Bg5 Rb1 Bh4 Ng4 Be1 Nf2 Ng1 Ra7 Rh4 Ra8 Nh3 Ra7 Qf4 d2 Rc2 d1Q Qd2 Rab7 Bh2 R7b2 Bbd6 Ra2 Rb2 Qe7 Rb6 Qd7 Rc6 Qc2+ Kd5 Qe4+ Kc4 Ree3 Bd3 Re2 Kc3 Ne3 Bb5 Nf5+ Kc4
5Rq1/1n1P2b1/3B2nq/1bn2p1R/1NnQN1b1/3N4/RrkPR3/n1rN1BK1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 g4 Kf6 e4 Ke5 b4 Kd4 g5 a5 d6 h5 e5 c5 b6 c4 e6 h3 g6 f3 g7 c3 e7 h4 e8R a4 b7 a3 b5 a2 b6 h2 Qc2 h3 Re7 Nc6 b8R Bg4 b7 f5 d7 Na5 Qd1 c2 Re2 Kd3 Rc8 Rb8 Qe1 Ne7 g8N Ng6 Nc3 Bg7 Ne7 Qg8 Rb1 a1N Ba3 c1N Rf8 Kc2 Nc6 Ncb3 Ne5 Nc5 Nd1 Rc8 b8N Nab7 Na6 Rh4 Kg3 f2 Ngf3 Rb8 Ng5 Rh8 Bg2 f1N+ Kf2 Ne3 Bf1 Nc4 Nd3 Rh7 Ne4 Rh5 Rg1 h1Q Rb4 h2 Ra4 Rh4 Rg3 Rc8 Rh3 Rc6 Ra5 Rb6 Ra4 Rb2 Bb4 Rh7 Rh5 Rh6 Ra2 Rh7 Nec3 Qc6 Ne4 h1B Kg1 Qb6 Ng3 Bc6 Ne4 Bb5 Qf2 Qd6 Qd4 Qf4 Rg5 Rh3 Rh5 Qh6 N3f2 Rc3 Nd3 Kb1 Ba3 Rc1 Bb4 Kc2 Ba3 Na4 Bd6 Nac5 Nab4+
kR2B1b1/3Rq3/3b4/1nn1b2q/2RRn2r/rNq2PP1/QbBp2KB/1B1N4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 b4 e5 c4 h5 f3 d5 Kf2 Kd7 g3 Kc7 c5 Kb7 b6 a5 b5 a4 g6 e3+ Kg2 e2 g7 e1B Ra3 e4 Bb2 d3 Rc3 h4 Rh2 d2 Re3 a3 Nh3 d4 Rc3 e3 Rc4 d3 Qb3 d1N Qa2 e2 Nd2 Nc3 Nf2 Nf6 g8B Nfe4 Bf7 Nd7 Be8 Bd6 Nd1 Qe7 c6+ Kb8 b7 Ndc5 Rh1 Be6 Nb3 Bg8 c7+ Ka7 b8R h3+ Kh2 Bf2 c8B e1Q Bf5 Rh4 Rd8 Bd4 b6+ Kb7 Rg1 Nb5 Rd7+ Kb8 b7 B4e5 Bc1 Qc3 Be3 d2 Rd4 Ra6 Bd3 Ra4 Kh1 h2 Kg2 Ra8 Bc2 h1Q+ Kf1 Qh2 Rh1 Qh3+ Kg1 Qg4 Kg2 Qh5 Bg1 Ra5 Bh2 Ra4 Qa1 a2 Qb1 a1B Qa2 Ka7 Bfg6 Ra3 b8R+ Bc7 Re1 Bb2 Re3 Bd6 Red3 Be5 Rc4 Bd6 Rdd4 Be5 Rb6 Ka8 Bf5 Bcd6 Bb1 Nf6 Bfc2 Nfe4 Rb8+
R1nbk3/2rb2nr/8/K1RnPBqN/2pPq3/8/1RNBBb1q/R2B1qQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 h5 d4 a5 Kd2 f5 Kc3 c5 e4 f3 b4 f2 b6 f4 b5 h4 g6 a4 g7 a3 e5 a2 g5 f3 b7 h3 g6 h2 b6 Na6 b8R Ne7 g8B Ra7 b7 Nb4 g7 Rh7 Ne2 Bd7 Ng3 Nbd5+ Kc2 c3 Kb3 c2 Nd2 Nc8 Nb1 Be7 Bg5 c1B Na3 Be3 Be2 f1Q Nh5 f2 Be6 Qe1 g8B f1N Rc1 a1Q Ra8 Ng3 b8R Nf5 Nc2 Ng7 Bf5 Bf2 Bd2 Rc7 Kc4 Beh4 Rb2 Qg5 Rf1 h1Q Rg1 Rc6 Kb5 Qh2 Bge6 Qb1 Ka5 Qf1 Bfg4 Rc7 Bef5 Qg6 Qe1 Bd8 Bd1 Qh6 Bge2 Qg5 Rh1 Qfh3 Qg1 Qf1 Ne3 Qd3 Nc2 Qe4 Ra1 Qhg2 Rh3 Qh2 Rhb3 c4 Rb5 Bc6 Rc5 Ba4 Rab8 Bd7 Ra8
N3bb2/2K1N3/2R5/1qnPpr1R/2k1BqQN/R4N2/R1brP1n1/r2qrB2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 h6 g5 Bb7 b3 Qd7 g6 Qd6 Bb2 Bc8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 h4 a5 d3 a4 b6 g4 b7 a3 h5 f3 h6 f2 g7 g3 d6 a2 h7 f4 d7 f3 Nh3 g2 Nd2 g1R Ng5 Na6 b8R Nh6 g8B Qe8 d8N Qb5 Rb6 Bd7 Rh5 Be8 Bd5 Nf5 Be4 Nh4 Nc6 Rd8 Nc4 Ng2 Qe1 Rg8 h8N Rg6 Qc3 Rf6 Ng6 Rf5+ Ke6 Rd7 Nh4 Rh1 Qg7 Rd4 Rd1 a1R Rd2 Rg1 Ra2 Rdd5 Nd4 Kb4 Qg6 c5 Rc6 Rd7 Nb6 c4 Ra3 c3 Na8 c2 Ra2 c1Q Qg7 Rc5 Ndf5 Qd1 d4 Rdd5 Qg6 Rc2 Qg8 Rd2 Qg7 Rc5 Qg6 Kc3 b4 Kc4 Qg7 Bg6 Kd7 Be8+ Kd8 e6 Ne7 Rh1 Rb6 Rf5 d5 e5 Rc6+ Nc5 Kc7 Nf4 Bg2 f1Q Ra3 f2 Ngf3 Rg1 Qg4 Rh1 Bh3 Ng2 Ra2 Qg1 Ra3 f1B Ra2 Qf2 Ra3 Qa6 b5 Qg3 b6 Qb5 b7 Qf4 b8R Ne3 Rbb6 Qba4 Bc2 Bg2 Ng5 Re1 Rb2 Be4 Rba2 Qb5 Bf1 Ng2 Bb1 Bc2 Ngf3 Ba4 Be4 Bb3 Qg7 Bc2 Qg4
2N2QB1/1r2r3/q3q1p1/r1q2bRN/1n2R2K/Bk2bB2/1PbP1nB1/R2r1R2 b - - 0 1 illegal: No proof kernel forced: bxDB
K7/b1qbk3/1N1N1P2/1nn1N1n1/2pr2R1/r1n2R1Q/B1q2P1B/N1r1BB1q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 dxc4 a4 f5 axb5 g5 exf5 gxh4 Ke2 h5 Ke3 c5 Ke4 e5 d4 a5 g4 c3 b4 c2 d5 a4 d6 a3 Kd5 e4 g5 h3 g6 e3 b6 a2 b5 e2 g7 e1R d7+ Ke7 b7 h4 b6 h2 Bd2 c1Q Qb3 h3 Na3 Rh4 Nf3 Nc6 b8B Nd4 b7 Qc2 Ne5 Nb5 Kc6 Rd4 Rg1 h1N Rg4 h2 Qh3 Rc1 Be1 Nf6 g8B Nd5 Bf7 Qa5 d8N Ndc3 Bb3 c4 Ndf7 Ra7 Nd6 Ng3 Bc7 Ra8 b8N Nge4 Nbd7 h1Q Nb6 Bd7+ Kb7 Bh6 Rb1 a1N Ba2 Be3 Rb4 Ra6 Rb3 Ng5+ Kb8 Ne2 Rd3 Nb3 Rc3 Nc5 Rb3 Qcd2 Nc2 Ra7 Rd3 Nec3 Na1 Qc2 Bd2 Bf4 Rf3 Be3 Be1 Qb4 Rg2 Ra3 Rg4 Qa5 Na4 Qb6+ Ka8 Na7 Bb8 Qc7 Nb6 Nab5+ Na4 Nc5e4 Nef7 Rdd1 Nb7 Qb6 Bh2 Qc7 Nbd6 Ba7 Ne5 Nc5 Nb6 Rd4 f6+
3BN1q1/1nBr1r2/1Nb1pB1b/5B1P/1qN2knR/rb1N1b1P/1K2Q1R1/3q4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Kd2 Kf7 c4 Ke6 Kc2 Kf5 b4 a5 f4 d5 c5 g5 b6 e6 b7 g4 c6 d3+ Kb3 a4+ Ka2 e3 b5 d4 c7 d2 h3 a3 b6 e2 Rh2 e1Q Bb2 d3 Qe2 d1B Bf6 d2 Rg2 g3 Nf3 Nc6 b8N Nh6 b7 Na5 Nd7 Ra7 b8B Rh7 Nb6 Rd7 Ne5 Bb7 c8N Bc6 Bc7 Qe7 Bd8 Nb7 Bc7 Bc2 Bd8 d1B Nd2 Qe8 Ndc4 Bb3+ Kb1 a2+ Kb2 Qb4 Rb1 Bdc2 Rd1 a1R Rd4 R1a3 Bc7 Bd1 Bfd8 Be7 N8d6+ Kf6 f5 Kg5 f6 Ng4 f7 Qg8 f8B Bf6 Qc2 Bdf3 Bd3 Rf7 Be4 Kf4 Bfe7 Bg7 Ne8 Bh6 Bf6 Rd7 Qe2 Rf7 Rg1 g2 Bf5+ Bce4 Rh1 g1Q Rh2 Qd1 Rg2 Rd7 Rd5 Rf7 Ra5 Bd5 Ra4 Bc6 Qf2 Nh2 Qc2 Ra5 Bh4 Qbf8 Qe2 Rd5 Rb4 Rdd7 Bhf6 Qc5 Na5+ Qc4 Qf1 Ke3 Ra4 Qc5 Rh4 Ng4 Qe2+ Kf4 Nac4 Qb4 Nd3+
1qQnr3/B2qRrB1/1bPN1nP1/R1n5/1K6/1B1bN3/1r1pR1B1/1r2q1kR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 b4 Kd6 e4 Ke5 c4 d5 g4 h5 g6 a5 c5 f5 g5 a4 b6 f3 b5 Kf4 g7 Kg3 b7 Kf2 e5 d3 Kc3 d2 b6 h4 g6 d4+ Kb4 f4 e6 h3 e7 d3 e8R a3 Qc2 h2 Qb2 a2 Ne2 d1Q Re7 Nc6+ Kc3 Nf6 b8R Ba6 Rc8 Rb8 Rg1 h1R g8B d2 b7 Qe1 Ng3 Qd7 Qb3 Bd3 Bb2 Nd8 c6 R1h7 Qd1 Rf7 Nf5 Bg7 Rg5 Bh6 Bg2 Kg1 Re2 f2 Ne3 f1Q Na3 f3 Ra5 f2 Rc7 Bg5 Rc1 a1N Nb5 Nb3 Kb4 Nc5 Nd6 Bf4 Qb3 Be5 Qe6 Bd4 Rca1 Qb1 Qh3 Qfe1 Qe6 f1R Qe8 Rg7 Bb3 Rf7 Qe6 Re8 Qf5 Qe6 Re7 Qd7 Qg4 Na4 Qf5 Bb6 Qe6 Nc5 Bc3 Ra8 b8B Ra6 Ba7 Qb2 Rb5 Ra2 Ra5 Qbb1 Qc4 Rb2 Qa6 Qg3 Qc8 Qbe1 Nb7 Qb8 Nd6 Qf2 Bd4 Rfb1 Be5 Nfe4 Bg7 Nf6 Rb5 Qe1 Raa5 Nce6 Rh5 Nc5 Rh1#
k2RQbnq/4q1Pr/bqpR1br1/N4r2/B4R1N/3NBP1R/5n2/2K2Nb1 b - - 0 1 illegal: No possible last move, all moves rejected
1nBN1rbb/r2R1P1q/6p1/Bn1b3N/kRqN1PQ1/N2n4/1B2qB2/1K5b b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 a5 h4 d5 f4 Kd7 b4 e5 c4 d3 c5 e4 b6 Kc6 b7 Kb5 h5 d4 h6 g3 h7 a4 f6 a3 c6 a2 c7 e3+ Ke1 g2 Nf3 g1Q Bb2 e2 Kd2 e1N Kc1 g6 Bh3 Be6 c8N Qd7 Ne7 Qf1 Nc6 Bg7 Nd8 Ne7 Bg4 Ra6 Rh3 Rf8 h8B Bg8 f7 Nc8 Qe2 Qd5 Na3+ Ka4 b5 Nd6 b6 Nb5 Bc8 Ra7 Qg2 Qe6 Qg4 Qfe2 Bc3 Q6e4 Ba5 d2+ Kb2 d3+ Nd4 Qe6 Rd1 Be5 Bf6 Qc4 Bh4 Bh8 Bf2 Ra8 Ne6 Ra7 Ng7 Ng2 Nh5 Ne1 Rc1 d1B+ Ka1 d2 Rb3 Nc6 b8B Nd3 Be5 Nb8 b7 Bc2 Rcb1 d1B R1b2 Bb1 Rd2 Bbc2 Rb2 Bb3 Bg7 Nd7 b8N Bdc2 Nbc6 Nb8 Rb1 Qee6 Be3 Nc5 Nf5 Qce4 Rd7 Bd5 Nhg3 Qc4 Nd8 Bce4 Rb3 Nd3 Bgc3 Qe7 Nd4 Bh1 Bg1 Qh4 Bf2 Qh7 Nh5 Nc5 Kb2 a1Q+ Kc2 Qd1+ Kb2 Qf3 Kb1 Qfe2 Bb2 Nd3 Rb4+
3n1q1N/BB2P3/1N4R1/5QqB/1Kb1n1BP/2r2n1N/2Rknr1p/N3b1rq b - - 0 1 illegal: No proof kernel
n2B4/2rPBr1q/7Q/1k3Bn1/1NRK1b1B/2R2pN1/rPq3Rn/1bqn1R2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 e4 c5 d4 h5 g4 a5 e5 f5 d6 f3 Ke3 a4 b6 Kc6 b7 h3 e6 c4 g5 c3 e7 h4 e8R f4+ Ke4 c2 d7 h2 g6 h3 g7 a3 Kd3 f2 d5+ Kb5 d6 a2 Be3 c1Q Nf3 Rh7 Be2 f1N Bc5 Nh6 g8R Qc7 d8B Nf7 Rg3 Ng5 Re4 Bh6 Nh4 f3 Rg2 Nd7 b8B Nb6 Rc4 Ra7 Nf5 Na8 Ng3 Rf7 Qd2 Bf5+ Kd4 Bg6 Rhg1 h1N d7 h2 Bce7 Nf2 Bd3 h1Q Bf5 Nh2 Rf1 Nd1 Qf4 Qc8 Bbd6 Rc7 Nc3+ Kb6 Nd5+ Kb5 Rb1 a1R Nb4 Ra2 Bf6 Qc2 Rc1 Bh7 B8e7 Qg8 Bd8 Bg6 Bd6e7 Qh7 Re1 Qf1 Re3 Qe1 Rd3 Qed2 Ra1 Qdc1 Rdc3 Nh3 Qe3 Bf4 Bh4 Ng5 Be6 Bd3 Bf5 Qb3 Qe6 Bb1 Qh6 Raa7 Ra6 Qbc2 Re6 Ra1 Re1 Ra2 Rf1
r2r3R/bqRPnBq1/2N1n3/2NN2r1/b1N3Pr/K5B1/3p1B2/Q1n2qkB b - - 0 1 illegal: No proof kernel
3q4/1NP2Kbb/B1r1N3/3b1nBN/1Rqrp1nN/2b1R3/B1q2P2/Q1B2k1r b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 g4 Ke4 b4 e5 b6 a5 c3 d5+ Kb3 h5 g5 d3 g6 h3 g7 d4 Kc4 h4 f6 a4 b5 h2 f7 d2 b7 d3 b6 h3 Ne2 Kf3 Ra3 Nh6 g8B Nd7 Kd5 Bg7 Ke6 Nf5 b8B Ra6 f8N Rh4 c4 Rd4 c5 Nf6+ Kf7 Ng4 b7 Rc6 Ne6 e4 Rg1 h1Q Bf4 h2 b8N Qg2 Bh6 h1R Nd7 Qh2 Be3 Qhc7 Bg5 Bb7 Qe1 d1Q Ng3 Qc2 Nh5 Ba8 Rb3 a3 Rb4 d2 Ba6 d1B Rf1 Kg2 Nd2 a2 Nf3 a1B Nh4+ Kh3 Rg1 Bc3 Rg3+ Kh2 Qf1 Be2 Re3 Bc4 Bd2 Ba2 Qa1 Qcc8 Bc1 Kg1 Nb6 Bb3 Nc4 Kf1 Nd6+ Bc4 Bb5 Qa6 Nb7 Qaa4 Na5 Bb7 Ba6 Bc8 Nb7 Qab3 Rb5 Bd5 Rb6+ Qc4 Rb4 Rb6 c6 Bd7 c7 Rc6 Rh3 Nfh6+ Kg6 Qb5 Re3 Ba2 Bf7 Be8 Kh7 Nf5 Nf8 Qbe2 Bd5 Bg6+ Kg8 Bh7+ Kf7 Qed3 Bb3 Qb5 Ne6 Qbd3 Ba4 Bd5 Bb3 Qc4 Ba2
1B2RKR1/Nqp1BP2/3NN1Bk/6Pn/1nB5/2Qrr2q/2r1bNnb/3b2n1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 Ke3 Kg7 Kf4 a5 Ke5 h5 d4 h4 g4 c3 b4 e6 f4 h3 d5 a4 f5 a3 d6 a2 b6 c2 g6 h2 d7 e3 b5 e2 b7 e1N b6 Ra3 Qd2 Rd3 Nh3 Nf6 Na3 Ng2 Nf2 Na6 b8B Nb4 b7 Nh5 Qc3 Qh4 d8N Qh3 Bg5 c1N Nb5 Ne2 Re1 a1Q Be7 Qa8 f6+ Kh6 f7 Ng1 g7 Bd7 Nd6 Ba4 g8B Bd1 Bh7 Qa7 Ke4 e5 Kf5 e4 Ke6 e3 Bg6 e2 Kd7 Rh7 Ke8 Bg7 Ne6 Be5 Kf8 Qb6 Ba7 Bf4 b8N Qb7 Nc6 Bg3 Bb8 Be5 Bf6 Rh8+ Ke7 Rd8 Na7 Rd2 Nde4 R8d3 Nd6 Rc2 Kf8 Nf3 Rg1 h1B Bd8 Bh2 Be7 Ngf4 Rg3 Ng1 Re3 Bc6 Re5 Bb5 Rg5 Ba6 Bg2 Bc4 Bd5 Bb5 Bc4 Ng2 Bf5 Ba6 Rg8 Bb5 Rf1 e1R Bg6 Ree3 Re1 Ba6 Nd4 Rb2 Bf6 Re7 Bd5 Rdd2 Re6 Bd3 Bc4 B3e2 Re3 Rd3 Re5 Rd7 Re8 Re7 Bh4 Re6 Be7 Ree3 Ne6 Rc2 g5#
2r1k1n1/PnB4K/BB4Pb/rq1qQ2r/b4q1R/RN3p2/R2n1N2/1rB3R1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 b5 Kf3 h5 Ke4 c5 g4 h4 a4 c4 d4 f6 d6 f3 g6 c3 d7+ Ke7 Kf5 h3 e4 f2 g5 b3 d5 c2 g7 b2 Kg6 f5 d6+ Ke6 a5 h2 e5 f4 a6 b4 Qe2 b3 Nh3 f3 Nd2 b1R Ra2 b2 Nb3 Nc6 a7 Na5 Qe1 Nb7 Ba6 f1Q Nf2 Qb5 Rg1 Qda5 d8B Kd7 e6+ Ke8 e7 h1R Bc7 R1h5 Qe5 Bd7 Rg4 Qd5 Rh4 Ba4 Bb6 Qab5 Ra3 Nh6 g8R Rc8 Ra2 Rh7 Ra3 Rf7 Rg7 Rf5 Kh7 Ra1 Rg8 b1N Bc7 Nd2 d7+ Kf7 e8R Rb1 d8B Bg7 Bb2 c1Q Ra2 Qcc4 Bc1 Qf4 Bb6 Bf8 Bdc7 Bg7 Re6 Bf8 Rgg6 Bg7 Rc6 Bf8 Rc3 Ng8+ Rh6 Bg7 g6+ Kf8 Rh1 Rfg5 Rg1 Rf5 Qd4 Ke8 Qe5+ Qe6 Bb2 Qc5 Qe1 Rhg5 Rh4 Bh6 Nc1 Rh5 Rca3 Qcb4 Qe3 Ra5 Nb3 Qb5 Bc1 Qee5 Qc3 Qed5 Qe5+
5Br1/p1K1P3/1N3nr1/r1bBR3/4Q1nP/k1NNb3/Bbq1nBq1/R2b1N2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 f5 Kf4 d5 h4 d3 e4 d4 b4 d2 c4 d3 c5 g3 c6 g2 c7 Rh5 e6 Kd6 b6 Nc6 e7 Ne5 e8B Ng4 b7 N8f6 b5 Kc5 b8B Kb4 e5 Qd5 e6 Bc5 Qf3 d1Q e7 d2 b6 Qc2 b7 d1N Bc6 Nc3 Ne2 g1B Nd2 Bgd4 Qe4 Qda2 Bd5 g5+ Kf3 Bd7 c8N f4 Nb6 Ba4 Bd6 Rah8 b8N Rg8 N8d7 Qab2 Ba2 Ka3 Bg2 Rh6 Bb8 Rhg6 Ne5 Be3 Nd3 Bcd4 Ng3 Ne2 Re1 Be5 Ndf1 Bc3 Bh1 Bcd4 Kg2 f3+ Kh3 f2 Kg2 Qb1 Kf3 Bd1 Be5 Bc5 Bd4 Qc2 Bd2 Nd5 Bg7 Ndf6 Bf8 Bed4 Be3 Bc3 Nd2 f1R+ Bf2 Rg1 Ngf1 Be5 Nd7 Qb7 Nb6 Bb2 Qc6 Rg2 Ne4 Rh2 Nc3 Rh3+ Kg2 Rf3 Qe4 Rf5 Kh3 Be3 Kg2 Ra5 Kf3 Ne5+ Kg2 g4 Kh2 g3+ Kg2 Neg4 Kf3 Bc5 Bg2 Ng1+ Kf4 Ne2+ Kf5 Qa8 Ke6 Be3 Bh1 g2 Kd6 g1B Kc7 Bc5 Qf5 Qf3 Bg2 Qh3 Bgd5 Qg2 Qf3 Nc1 Re3 Ne2 Re5 Be3 Qe4 Bc5 Be1 Bge3 Bf2
2N1bBr1/8/b1B2K1R/nBqP1n1N/2r4R/1n1QN3/Ppb2b2/Bk1bN1b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 h5 f4 b5 g4 b3 d4+ Kb4 f6 c5 f5 c4 d6 b2 d7 c3 g5 c2 g6 h3 f7 h4 f6 h2 g7 h3 Bh6 c1N Ne2 Qa5 d8B Nc6+ Ke4 e5 Bg2 Nb3 Bc7 Ba6 Kf5 e4 Qd3 e3 Bf3 Bc5 f8N Rc8 f7 Nge7+ Kf6 Rg8 Ng1 e2 Nd2 Ka3 Nf1 b1B Be5 Kb2 Ne6 e1B f8N b4 Nd7 Bc2 Nf4 Bf2 Nb6 Nf5 Ne3 Qa3 Nh5 Nca5 Rd1 Rc7 Rd2 Kb1 Nc8 Bb6 Re2 Rc4 Bc6 Qc1 Nf3 Bc5 Rg1 h1B Rg6 h2 Ne1 Bf3 d5 h1B Ba1 Be4 Rg4 Bhf3 Rh4 Bg1 Reh2 Bd1 N3g2 Bcf2 Ne3 Ng3 R2h3 Bg6 Rh1 Be8 Bb5 Rh8 g8B Nf5 Be6 Rg8 Bed7 Qa3 Bdc6 Qc1 Ng4 Qe3 Bf8 Qc5 Nf3 Nd2 Ne3 b3 Ne1 b2 Rg4 Ndb3 Rhh4 Ng7 Rg6 Nf5 Rh6
2b5/3BBP1R/nk3N2/2nr3q/1nr1bb2/PnN3RB/1pRB2nK/n4RQ1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kd7 Kf2 c5 g4 Kc7 Kg2 e5 d4 b5 d6+ Kb6 d7 h5 d5 h3+ Kh2 b3 d6 h4 f6 c4 f5 e4 f7 e3 g5 b2 g6 b4 g7 c3 a3 e2 f6 e1N Qb3 c2 Nf3 Na6 Ng5 Ng2 Qf3 b3 Qh5 Ne7 g8B Qe8 d8R Nc6 d7 Ncb4 Qh6 Bd6+ Bf4 c1N f8B Qh5 Nd2 b1N f7 b2 Nh7 Nb3 Ne4 N1d2 Qg7 Be5 Re1 Na1 Nc3 Ndb3 Be7 Ra7 Rd1 Rc7 Nf6 Rc4 Bh7 Rg8 Qg3 Rg5 Bd2 Bf4 Rg8 Rd5 d8R Rd7 Kg1 Rd5 Bf5 h2+ Kf2 h3 Bd7 Ne1 Rc1 Ng2 Rc2 Rf5 Rg1 h1B Qh2 Rd5 Rg3 Nh4 Re8 Be4 Rh8 Ng2 Qh1 h2 Rh7 Nh4 Bfh3 Ng2 Nb5 Qe5 Rb1 Qh5 Qg1 h1N+ Kf1+ Nf2 Nc3 Rcd4 Rbc1 Nfd3 Rd1 Ndc5 Kf2 Nh4 Rdc1 Rc4 Rf1 Nf3 Kg2 Ne1+ Kh2 Ng2 Ba4 Bg6 Bb5 Be4 Bd7
3KN2b/P1n2r2/1NQpRB1k/5nP1/1bq1bNb1/1bb2Rr1/3NB3/r1B3B1 b - - 0 1 illegal: No possible last move, all moves rejected
NrRb1R2/nrBB2Pq/4R3/r6n/2kb1r1b/1B1R4/p2PbBNQ/2K2b2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 Ke7 b4 Kd6 e4 a5 g6 c5 g7 f5 e5+ Kd5 b6 h5 e6 a4 b5 f3 g5 c3 g6 c2 e7 f2+ Ke2 f4 e8R a3 b7 f3+ Ke3 h4 b6 c4 Rh2 c3 Re6 a2 Nh3 Nc6 b8B Qc7 b7 Ra5 Ba7 Nf6 b8R Be7 g8B Ba6 Bc5 Nh5 Rc8 Bd8 Qe2 Na7 Bb2 c1B Na3 c2 Nc4 Qh7 Be5 Bb2 g7 c1B Bc7 Bbf6 Rg2 Ba3 Rg3 Bab2 Rb1 Bbe5 Rbb8 Bb5 Bg2 f1R Bh1 Rb1 Qh2 Ba6 Kf2 Rb7 Ke1 Bd4 Kd1 Bfe7 Bg2 Bef6 Bf1 f2 Rd3 Bfe7 Be2 f1B Bg4 Bg5 Bf7 Rf8 Bg8 Rf4 Kc1 Bb5 Ne5 Ba6 Nd7 Kc4 Bf5 Rf2 Nf4 h3 Bg4 Bh4 Ng2 Rf4 Ra8 Bdg5 Rf8 Bd8 Rc8 Rb8 Qh1 h2 Nb6+ Kb5 Na8 Kc4 Qg1 h1R Qh2 Bb5 Bf3 Rg1 Bc6 Ba6 Bd7 Be2+ Kc2 Rgb1 Bf7 R1b7 Kc1 Ba1 Bf2 Bd4 Re4+ Kc5 Bb3 Bf1 Rh3 Bae2 Re6 Kb4 Rd3 Kc5 Bba4 Kc4 Bb3+
bq2Rnrn/Pr1B1bP1/1kQ5/R2B1bN1/KN4N1/4pbq1/1b2NbB1/6B1 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 Kd2 d5 g4 Kd7 f4 Kc7 a4 b5 c4 e5 Kc2 h5 Kb3 d4 c6 h4 f5 d3 a5 e3 g6 e4 g7 e2 g5 e1B c5 h3 f6 h2 g6 d2 a6 Nh6 g8N Rh7 a7 Bf2 f7 Nd7 Ne2 Qh4 Na3 Bg7 f8N Bb2 Qc2 d1B Bg2 Nf7 Nh6 Qg3+ Be3 Nh8 Re1 h1B Ng4 Rg7 Nh7 Nf8 Ng5 Bf5 Ra2 Rb8 Ra1 Rg8 g7 Rb7 Ra2 Kd8 c7+ Kc8 Nd4 Bf3 Ne2 Bg6 Qc4 Bf7 Nc2 Kd7 c8B+ Kc7 Be6 Kc6 Ncd4+ Kc7 c6 Kb6 Bf1 Bhg2 c7 Bh1 c8B Bhg2 Bd5 Bh1 Kc2 b3+ Kb1 b4 Bd7 Bhg2 Ra5 Bh1 Bf4 Bhg2 Nc2 Bh1 Bg2 e3 Rd1 Bd4 Rf1 b2 Ka2 b1B+ Kb3 Bb2 Ka4 b3 Nb4 Bf5 Qc1 Be5 Rd1 b2 Rd4 b1Q Re4 Bb2 Re8 Qe4 Qc4 Qe5 Qc3 Qb8 Qc4 Qh4 Bh2 Qhg3 Bg1 Rc7 B5e6 Ba8 Bed5 Rb7 Bf1 Bhe4 Bg2 Bf3 Qc6#
1K1n1Q2/n1r1pkrB/2R1b3/2B1b1nN/2rn3r/2PRq1bB/P1R1R3/1N2B3 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Nd2 g5 Ke2 b5 Kd3 d5 Kd4 b3 f4 b4 h4 g3 h5 g4 c6 g2 Kc5 d4 c3 g3 f6 d3 c7 b2 Kb6 b1R f5 b3 h6 b2 h7 Nh6 Rh3 Bg7 Ne2 g1R Nf4 g2 Qh5+ Nf7 Rh2 Bd7 Kb7 Ra4 c8B Nc6 Qh4 Na7 Kb8 Qa5 Be2 Nd8 f7+ Kf8 Bh5 Qd5 Bg6 Qe6 Qh5 Bd4 Qh3 Kg7 f8R Rc4 Rf6 Qe1 Rd6 Be5 f6+ Kf8 f7 Qf2 Nb3 d2 Bd3 d1N Bd2 Kg7 f8R Ne3 Rf6 Nc2 Qh4 Rbd1 Rc1 b1N Be1 Qe3 Nd2 Rc7 Rg6+ Kf7 Bf5 Rc4 Bh3 Bg4 Bf5 Rc7 Bd3 Bd7 Rd5 Bc8 Rc6 Be6 Bg3 Rdf1 Be1 Rf3 Bdf5 Rg3 Be4 Rg7 Rd3 Rf1 Bef5 g1B Re2 Bf2 Be4 Bg3 Bef5 Nba3 Nb1 Nc4 Be4 Nd2 Bef5 Nd4 Rc2 N4f3 Be4 Nb3 Bef5 Rg4 Qh6 Rhg8 Nh5 Ng5 Be4 Rff4 h8B Bg7 Bf5 Rc4 Be4 Bf6 Bg7 Rh4 Qh8 Bd4 Bf6 Rg7 Bh7 Qf2 Be5 Qe3 Bd6 Bde5 Bc5 Nd4 Qf8+
2B5/P3Pp1K/2B1bkr1/3nRBB1/1r1R1Q1n/R1nq1NnN/3Rbb2/4rb2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 c5 d4 b5 g4 h5 e4 h4 a4 c4 e5 h3 e6 c3 d6+ Ke8 d7+ Ke7 a5 b3 g6 h2 g7 c2 a6 b4 d5 b2 a7 b3 g5 Nf6 g8B Qc7 d8R Nbd7 g6 Nb6 g7 Qc4 Bh3 Rh6 Nd2 b1N Ra3 b2 Bh7 Nfd7 Kg4 f3+ Kg5 f2 g8B f1B B7f5 Nc3 Bgh7 b1B Ndf3 Ne5 Qd2 Rb8 Qf4 Ng6 Bhg4 Rb7 Nh3 Nh4 Rd6 Be2 Re1 h1N Bd2 Bf1 Re5 c1R Be4 Bg7 Bhf5 Rg6+ Kh5 Kf6 e7+ Be6 Rd7 Bg2 d6 Bf1 Bc6 Nbd5 Rd8 Bh8 d7 Re1 Bc1 Rb4 Be3 Rg8 Kh6 Qd3 Kh7 Ng3 Rc8 Qa6 d8R Ng6 Bc2+ Bf5 B6a4 Nc7 Rc5 Ke6 Qh6 Bd4 Re5+ Kf6 Ra8 B5d3 Bc6 Bde2 Be6 Bb6 Rd2 Ba2 Bcf5 Qd3 Rd8 Bd4 Bc8 Be6 Bf4 Bf2 Rd4 N7d5 Qf8 Nh4 Qh6+ Rg6 Be3 Ng2 Qh4+ Rg5 Qg4 Rg8 Bh6 Nh4 Qf4 Rg6 Bg5+
q2B2r1/nb4b1/1B1n1N1k/2R1p3/B3q1Nr/1BKR1bb1/rPP5/1rR2Q1R b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 Kg6 g4 e5 b6 d5 b7 h5 Bc4 a5 Na3 d3 Nf3 h4 Bb3 d4 Qg1 a4 Nb1 a3 Nc3 a2 Ba4 h3 Nd5 h2 Qf1 Nc6 b8R Bg7 Rb5 Rh4 Rc5 Bb7 Nf6 Na7 Rb1 Ne7 f5+ Kf7 Ra1 Nec8 g6+ Kf8 Rb1 a1R g5 Ra2 Ra1 Nd6 Rb1 Bh8 g7+ Kf7 g8B+ Kg7 g6 Kh6 Be6 Bg7 Beb3 Qh8 Ra1 Rg8 Rb1 Bf8 g7 e3+ Kd1 d2 Ke2 d1B+ Kd3 Nc6 Bd2 Qh7 Rc1 Na7 Ba5 e2 Bb6 e1B Bd8 Bg3 Kd2 d3 Kc3 Rh8 g8R d2 Bb6 Bg7 Rd8 Rg8 Rd7 Ne8 Rd3 Be2 Nd5 d1Q f6 Qe4 f7 Nd6 f8B Qe1+ Nd2 Qg2 Be7 Bf3 Bed8 Qee2 Nf6 Qe4 Rg1 h1R Nc4 Qh3 Ne3 Qc8 Nh7 Qb8 Nf6 Qa8 Neg4+ Kg6 Rb1 R1h2 Qc1 Rf2 Qe1 Rf1 Rh1 Rg1 Qf2 Rf1 Rbd1 Re1 Qf1 Kg5 R1d2 Rb1 Rd1 Kg6 Rc1 Kg5 Nh2 Kh6 Nhg4+
8/3k3b/R1N2bR1/1P2q1N1/KR1nq2p/1BqRq2b/B1Bb2Pr/Q1n1B2r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 a5 b4 d5 c4 f5 Kc2 h5 Kb3 f3 e4 d3 e5 d4 b6 a4+ Ka3 d2 c5 f4 b7 f2 e6 f3 b5 d3 e7 Na6 b8R Qb6 g6 Bh6 c6 Qe3 g7 Nb4 c7 Kd7 e8R Ne7 g8B Nec6 Qe2 d1B Qb2 d2+ Bb3 Nd3 Bg8 Nd4 Re6 Bc2 Qa2 d1Q Nh3 Qde1 Rg6 Qc3+ Bb3 Bg5 Bd2 Nc1 Bc4 f1Q Bd5 f2 Be1 Qfc4 Nd2 f1Q Nf3 Qfe2 Rg1 Bh6 Nhg5 Q4d3 Rb1 Qde4 Qa1 Qe5 Ra6 Bh7 Rbb6 Q2d3 Rh1 Qde4 Rg6 Rb8 Rh3 Rb6 Rb2 Rf6 Nh2 Rf1 Nhf3 Rh1 Bf7 Qcc6 Kb4 a3 Ka4 a2 Bc2 Qcc3 Rb4 Rh2 Bfb3 Rh1 Nf7 Bg5 Nd8 Bf6 Nc6 Rh2 Qb1 a1B Ng5 Bb2 Qa1 Ba3 Rc4 Bb4 Rf3 Ke8 Ba2 Bh3 c8B Ba5 Bb7 Kd7 Rb4 Rf8 Rf2 h4 Nd8 Qc8 Bbd5 Bh8 Rd2 Rf1 Rb1 Bf6 Rd3 Bd2 Rb4 Qc3 Nc6 Rfh1 Bdb3
5kn1/2NnR2P/1BN2b2/R5n1/p5bB/q1qrR1b1/BP1Rnr1b/1K2B1Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 g5 d4 a5 Kd2 c5 Kc2 f5 h4 f3 d6 a4 h5 f2 d5 c4 e5 f4 h6 g3 e6 g4 h7 f3 e7 g2 b6 g3 b7 c3 Na3 Bg7 Qe1 Nd7 b8R Qa5 Rb5 Bf6 Ne2 g1N Kb1 g2 Rh2 Nh3 Nd4 g1B Nc6 Ng5 Bc4 f1Q Rd2 f2 Ba2 Qh3 Qf1 Kf7 e8R Bh2 Re7+ Kf8 Qg1 f1N Re3 Qb4 Ra5 Ng3 Nb5 Ne2 Nc7 Qa3 Re7 Rb8 Re3 Rb3 Re7 Nc5 d7 Qe3 d8B Bg4 d6 Nd7 Rd3 Qh3 Rde3 Bg3 Bd2 Bh2 Kc2 Qg3 Rf1 Qh3 Kb1 c2+ Ka1 c1B Rd1 Qg3 Be1 Rd3 Kb1 Qe5 Rd2 Qec3 Nd5 Bfe5 Bb6 Beg3 Rd1 Bd2 Nc7 Bc1 Rf3+ Bcf4 Rfe3 Be5 Rd2 Bf6 Rf3 Be5 Nd8 Nh6 Na6 Nb8 d7 Beg3 Re8+ Kg7 Bc7 Bd4 Nc6 Rf8 Bb6 Ng8 Rfe3 Rf2 R8e7+ Kf8 Nc7 Nf7 d8B Nd7 R7e4 Bg7 Bg5 Bf6 Bh4 Ng5 Re7
3RB1b1/1b1K4/1kpBr1B1/2P1NRBR/4b2R/1b2b1Q1/2qb1n1P/Nrb3r1 b - - 0 1 legal: proof: d4 h5 a4 e5 e4 exd4 f4 b5 axb5 Nc6 g4 hxg4 e5 Nh6 e6 Ne5 fxe5 Ng8 Kf2 g5 Kg3 a5 b4 d5 e7 Kd7 e8R f5 b6 Kc6 b7 f4+ Kg2 d3 b8R d2 c3 a4 e6 a3 e7 a2 Qe1 d1B Be2 g3 Kf3 g4+ Kg2 d4 Qf1 d3 Nd2 Bh6 Qf2 f3+ Kf1 g2+ Ke1 g3 Rb7 Bc2 Nb3 Nf6 Bg5 Rb8 Kd2 Ng4 Rb5 Bb7 Rc1 Rh7 Na1 Qc8 Rd8 Qf5 Qe1 f2 Nf3 g1R e8B+ Rd7 Ra5 f1B b5+ Kb6 Ne5 g2 Qg3 Nf2 Ke3 c6 B2h5 d2 Bhg6 Re7 Kd4 d1B c4 Be4 Rc3 Bb3 Rf3 Bfd3 Rf4 Re6 Rh4 Rd1 Re1 g1B Rh5 Bd5 Re4 Rb1 Reh4 B3e4 Bf6 Bd2 Bg5 Kc7 Kc5 Rc8 Nc2 a1B b6+ Kb8 Qf4 Bb2 Na1 Bbc1 Rb5 Ka8 Qg3 Kb8 Rd7 Rc7 Rd6 Rg7 Rd8+ Bc8 b7 Ka7 b8B+ Ka6 Kd4 Bb7 Ra5+ Kb6 Bd6 Ree7 Rc5 Bg8 Ra5 Re6 Rd5 Bg2 Ra5 Qc2 Rd5 Ka7 Kc5 Be4 Qh3 Rf7 Bde7 Nd1+ Rd4 Bd3 Qg3 Rf1 Rf4 Bge3 Rf5 Nf2 Bf8 Re7 Kd6 Rg1 Rdh4 Re6+ Kd7 Be4 Bd6 Kb6 c5+
R1n3n1/4BKB1/Bn1p1NR1/3n4/B2k1P2/2rN1qrn/3P2Rr/3bRrrQ b - - 0 1 legal: proof: b4 g5 e4 f5 c4 fxe4 h4 gxh4 a4 b5 cxb5 Bg7 a5 Bf6 Na3 Bd4 Nb1 Bb6 axb6 Kf8 Ra3 Kf7 Ra1 Ke8 Ke2 Kf7 Ke3 Ke6 Kd4 a5 g4 h5 f4 c5+ Kc4 e3 b7 d6 g5 a4 g6 e2 b6 e1N b5 a3 g7 h3 Ra2 h4 Rc2 a2 Rb2 a1R Qa4 h2 Nc3 h3 Na2 Nd3 Qb4 Ra3 Qa4 Nb4 Nf3 Nd5 Rg1 h1N Ne5 h2 Ng4 Rg3 Qa8 Nf2 Nf6 h1N Rg2 Nd7 b8R Rh2 b7 Nh3 b6 Kf5 Rc2 e5 Bb2 e4 Nc1 e3 Nd3 e2 Rc1 e1R Be2 Rf1 Re1 Qf8 Bd1 Qf7 Ba4 Qh5 Be5 Qf3 Bb2 Nge7 g8B N1f2 Bf7 Ne4 Be8 Nf8 Beb5 Nd7 Ba6 Rg1 Qa7 Rf1 Ra8 Ra3 b8R Rc3+ Kb5 c4 b7 Ke6 Qg1 N7b6 Qh1 Kf5 Ba1 Be6 Rd8 Nec8 Kc6 Bf7 b8B Bh5 Bc7 Bg4 Nh5 Nef6 Rg8 Rg1 Rg6 Ng8 Bd8 Rf1 Rb1 Ke4 Nf6+ Kd4 Rd1 Qe4 Re1 Bd1 Be7 Qf3 Nb2 Rb3 Nd3+ c3 Nb2 c2 Nd3+ Nc3+ Kc7 c1R Kd8 Rbb1 Ke8 Rb3 Nb2 Ncd5 Kf7 Rbc3 Nd3 Rg1 Nh5 Bb3 Nf2 Kc5 Ree6 Rd3 Bb2 Rcf1 Bg7 Bd1 Re1 Rc3 Nf6 Kd4 Nd3
3kB2R/N4nr1/Rn1n3P/rQp2bn1/2Pq1Rq1/B5N1/5RBB/3n1Knr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 e4 d5 Be2 Bd6 Bd3 dxe4 Bf1 e3 Bd3 e4 Bf1 Be5 fxe5 Qd4 Na3 Qd5 Nb1 Qd8 d4 c5 h4 g5 c4 a5 b4 f5 h5 a4 d5 f4 d6 a3 b6 f3 h6 e2 e6 g3 b5 f2+ Kd2 e1N Ke2 e3 b7 a2 b6 g2 e7 g4 Qd4 g3 Qe4 Bf5 Rh4 Nd7 b8R Ngf6 b7 Ra5 Bb2 Rg8 Ba3 Nf3 Ra8 Rg7 b8B Nb6 Rf4 Ne5 Rg4 Nf7 Qb7 Ne4 Nc3 Qd7 Rd1 a1Q Nb5 Qd4 Rd2 Qc8 Ra6 Qe6 Nh3 g1R Nf4 g2 Na7 Rh1 Nh5 Qg6 Ng3 g1N+ Kd1 Qe6 Bg2 f1N Ke1 e2 Rf4 Ne3 Qc6+ Qd7 Qb5 Nd1 Rc2 Qc6 Rd2 Kd7 e8B+ Kd8 d7 Ned6 Rb2 Qf3 Ra2 Qg4 Rd2 Ne3 Kf2 e1N Rc2 Ke7 d8R Nd1+ Kf1 Nef3 Rf2 N3g5 Bec6 Qh5 Rh8 Qg4 Be8 Kd8 Ne4 Nbc8 R4f3 Nb7 Bh2 Nbd6 Ng3 Nb6 Rf4
1b2bRq1/3p3P/1knP3R/RB1nN1N1/Kn5n/2r2NqN/n4bR1/1bBQ4 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 a4 h5 g4 hxg4 b6 Qg5 b5 Ra6 b7 Rah6 b6 Rh5 Bh3 Qd8 Bf1 Rb5 axb5 a4 d4 g5 Kd2 c5 Kc3 f5 h4 f3 e4 a3 Kb3 c4+ Ka4 c3 e5 f4 h5 f2 h6 c2 h7 a2 d5 g3 e6 g4 e7 g2 Qd2 f3 Qg5 g3 Qg7 Nf6 Bh6 c1N Bd3 f1B Nd2 f2 Nc4 Nc6 b8N Ba6 b7 Be2 b6 f1N Na3 Nd2 Nb5 Bh5 Be4 Nf3 Nd4 Bd3 Nh3 g1Q Qg4 Bb1 Bd3 g2 Bb5 Nh4 Qd1 Rg8 Bd2 Rg3 Nf3 Bg7 Nfg5 Rc3 Rh2 Qf2 Nf3 g1B Rg2 Qg3 d6 Bf2 Na6 Nd5 b8R Bgd4 b7 Ba7 Nc5 Bf7 Rc8 Bb8 Ne4 Bg6 Be3 Kf7 Bf4 Qg8 Rf8+ Ke6 Be3 Be8 Bd2 Nc7 Neg5+ Kd5 Rf6 Kc5 Rh6 Kb6 Bf4 Beg6 e8R Nd5 Rf8 Be8 Bd2 Nd3 Bf4 N3b4 Bc1 Bbg6 Rb1 a1N Rb2 Bb1 Ra2 Nac2 Ra3 Bc7 Ra1 Na2 b8N Ne5 Nc6 Bb8 Nb4 Nc6 Nd3 Nc2b4 Nde5 Be4 Rb1 Bc2+ Rb3 Bb1 Ra3 Rc5 Kb3 Rc2 Ra5 Rc3+ Ka4
qb2q2q/2bBp1k1/qn4B1/N1R3B1/2R1P2R/PQn1NB2/4r1bb/2KbR3 b - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 g5 h4 f5 b4 a5 Bh3 axb4 Bg2 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Rh3 g4 Rh1 Rg5 hxg5 Qa5 Bh3 Qc7 Bf1 Qd8 Kd2 Kf7 e4 d5 c4 h5 f4 b3 a3 h4 f5 h3 f6 b2 c6 h2 c5 b4 c7 g2 c6 d4 Kc2 d3+ Kd2 g3 Qe1 b3 Qe2 Bh3 c8B Qe8 c7 Bh6 Kd1 d2 Bf5 Nd7 c8B Nb6 Nc3 b1Q Qd3 b2 Nge2 g1B Nd5 g2 Qb3 Qd3 Nd4 b1Q Bcd7 Qa6 g6+ Kf8 f7 Kg7 f8R Nf6 Nc6 Bf4 Be2 Bb8 Ne3 Nfd5 Bf3 Qa8 Nd4 Qd3 Nc6 Qda6 Na5 Nc3+ Kc2 d1B+ Kd2 Qf7 Rc8 Qe8 Rc5 Bf2 Re1 h1Q Ra2 g1B Rc2 Bfg3 Rc4 Kh6 g7 Bgc7 g8R Bgh2 Rg4 Bg2 Rh4+ Kg7 Bg6 Rh5 Bb2 Rd5+ Kc1 Rd2 Rc5 Qhf1 Ba1 Qfc4 Bb2 Qd4 Rc4 Re2 Rc5 Ncd5 R2c4 Qf6 Be5 Nc3 Bf4 Qff8 Bg5 Qg8 Rb4 Qh8 Rbc4
1N1RR2b/kbqRK2B/2q4Q/1P2p1Bn/5nB1/Nrb1B3/2q1pP2/1rr4R b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kg5 Kb6 d4 h5 g4 e5+ Kg6 a5 Kf7 a4 b4 a3 d6 c4 d7 a2 d5 h3 d6 e3 g5 e2 g6 h4 g7 h2 Nc3 h3 Qa4 Na6 Nb1 c3 Bf4 c2 Na3 c1Q Be3+ Nc5 Nf3 Qc7 Nd4 Nf6 g8B Ne6 Bh7 Bg7 Ke7 Q1c2 Rd1 a1B Nc6+ Kb7 b6 Nf4 b5 Bc3 Nb8 N6h5 Qb3 Ra4 Rd3 Rb4 Qe6 Rb1 Qh6 Rf8 Rd5 Bh8 Bg2 Rg8 Bf3 Rg3 Bg4 Ka8 Rd4 Rf3 b7+ Ka7 Kf8 Rg3 d8B Rf3 d7 Rg3 Re1 h1Q Bg5 h2 d8R Qhc6 Rf1 h1R R4d7+ Bd4 Ke7 Rc1 Bd2 Rb3 Be3 Rcb1 Na6 Rc1 b8R Bb7 Re8 Rg1 Rbd8 Rcb1 Nb8 Rc1 Bd2 Bc3 Rd1 Rg2 Rh1 Rgg1 Bh4 Rcb1 Bg5 Rgc1 Be3+
3n1br1/1r1k3N/2pq4/3B1P2/R3K1bN/R2Pn1Rp/R1Qq2N1/NnBq3r b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 h5 Ke3 e5 g4 a5 b4 h3 f4 h4 g5 h2 g6 h3 g7 c6 f5 a4 d3 a3 d6 a2 b6 Rh7 b7 Nh6 g8N Nd7 b8R Nf6 b5 Kd7 b6 Nf7 b7 Rg7 Qc2 Ng4+ Ke2 e3 Kf3 e2 Nd2 e1Q Nb3 Ne3 Ke4 Qe7 Bg2 Qd1 Nf3 Nd8 Rg1 h1R Nh4 Ra7 Ra8 Qe6 b8R Rb7 Rb1 a1N Rb2 Qf6 Rba2 Rg5 Qd2 Nac2 Na1 Na3 Qc2 Nb1 R8a4 Qe7 Rba8 Qe6 Nh6 Rg8 Nf7 Qe7 Ng5 Qd2 Kf3 e4+ Kf4 Qf6 Nh7 Ng4+ Kg3 Ke8 Qc5 e3 Kf4 Be6 R4a5 Bd5 Qc2 Bf3 d7+ Ke7 R5a6 Nf7 d8N Kd7 Ne6 Nd8 R6a3 Qg6 R8a4 e2+ Kg3 Qd1 Kf4 Ne3 Ke5 e1Q Nf4 Bg4 Bd5 Qed2 Rg3 Qf6+ Ke4 Qd6 Nfg2
k5BR/Nq2R1n1/nPpqb3/1NR2rP1/N2Bq3/pb2rN1R/r2b1K2/3Q4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 d4 Kd7 g4 a5 e4 h5 b4 f5 e5 a4 b6 h3 b7 f3 b5 h4 g5 h2 d6 f2+ Ke2 f4 d5 f3+ Ke3 h3 b6 Nf6 Bb2 Ne8 Bd4 Ng7 Na3 Na6 Bc4 f1R b8R f2 Rc1 Re1+ Kf3 f1B Nb5 Re3+ Kf2 a3 Ba2 Bc4 Nf3 Bb3 Rc5 Qe7 e6+ Kd8 d7 Qd6 Rg1 h1Q Rg3 h2 Rh3 Rh4 Rb7 Rf4 Nc3 Rf5 Na4 Ra7 Qd2 Qb1 Qd1 Ra8 Ra7 h1Q Rb7 Qe4 Ra7 Ke7 d8N Bd7 Rb7 Rc8 Nc6+ Ke8 e7 Be6 Na7 Kd7 e8R Rd8 Nb5 Kc8 Ra7 Kb8 Rb7+ Ka8 Re7 Qde5 d6 Re8 d7 Qd6 Rh8 Qh7 d8N c6 Nf7 Qg8 Rh3 Qh7 Na7 Rd8 Re8 Be7 Rh8 Bf6 Ba1 Bc3 Re7 Bd2 Bd4 Qg8 Qf1 Rd7 Qd1 Qgb8 R8h6 Qb7 Rh8+ Qdb8 Nd6 Rd8 Ndc8 Rdd5 Nb5 Qd6 Bc3 Rdd3 Bf6 Rc3 Bd4 Rc2 Nca7+ Bg8 Qe1 Bc4 Bb3 Ra2 Qd1 Bf7 Bc2 Bc4 Bd3 Bb3 Bc4 Qg6 Bf7 Qd6 Be8 Bge6 Bf7+ Qdb8 Bg8 Qd8 Qf1 Qd6 Qd1
n3bq2/1n1q3Q/pBRP3r/1q2rNp1/R2b4/5KBR/Nnr2BP1/2Bk2R1 b - - 0 1 illegal: No proof kernel
rNQk1b1b/4q2P/3p2p1/1K1bN2R/3PBRR1/r2nqnR1/r2N2N1/q2B4 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a4 hxg4 Ba3 Bb7 axb5 Na6 b6 Bc8 b5 Nb8 Bb4 cxb4 Ke2 a5 Kd3 e5 Kc4 g3 d4 b3 f4 a4 h4 d6 h5 b2 h6 e4 h7 e3 f6 g6 f5 e2 b7 e1R b6 g2 f7+ Ke7 f6+ Kd7 Ne2 g1Q Qc1 a3 Bg2 a2 Nf4 Rf1 Be4 Bg7 f8R Rf3 f7 Nc6 b8R Nh6 b7 Rfa3 Kb5 Nf5 c4 Qe7 c5 Qe3 Ng2 Nh4 Nd2 Nf3 Rh5 Nce5 c6+ Kc7 Qc3 Nd3 Rg1 Be6 Rbe8 a1B b8N Bd5 Qc2 Qd8 Re7+ Kc8 c7 Rg8 Ree5 Bh8 Reg5 Rg7 Rg4 b1Q+ Nb3 Bb2 Nd2 Qa1 Qc4 Bc1 Qc2 Kb7 c8B+ Ka7 Rg3 Qe7 Bg4 Kb7 Qc4 Nfe1 Bd1 Nf3 Rg8 Ra2 f8N R8a3 Nfd7 Ra8 Nc5+ Kc7 Rf8 R2a3 Rf6 Kd8 Ncd7 Ra2 Rg4 R8a3 Rg3 Rg8 Rf4 Rg7 Rgg4 Qh4 Nb3 Qee1 Rf6 Be3 Ne5 Bh6 Nd2 Rga7 Ne3 Bf8 Rff4 Qe7 R1g3 Ra8 Ng2 Qe3 Qc8+
r5NN/2k1q1pn/bQ1bBnqN/p1n3R1/B1r1PN2/4bKB1/5P1q/6RB b - - 0 1 illegal: No proof kernel
B1Q2Nnq/r2Rnp2/1qp2B1b/PPrq4/4BBnb/3N1RR1/R6k/K4b2 b - - 0 1 illegal: No proof kernel
n1rR4/nRqrp1q1/4N1RP/5b2/nB1R2pk/bN1N2QB/1P2qb2/K3N3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 f4 Kf7 h4 Kf6 d4 c5 Kd2 g5 Kc3 a5 f5 a4 b6 c4 h5 e3 d6 e2 h6 e1Q+ Qd2 g3 b7 g4 d5 a3 d7 g2 d6 a2 Rh3 Qc7 d8R Qe2 d7 Ra7 Rh2 Bg7 Kc2 c3 Nf3 g1B Bh3 Bf2 Ne1 Nc6 b8R Rb7 Rh1 Na7 Rf1 Bc5 Rf4 Kg5 f6 Ba3 f7 Nf6 f8N Kh4 Ne6 Ne8 Nc5 Bd4 Ncd3 Bf2 Re4 Qe5 Rd4 Rc7 Rb6 Qg7 Rb7 Rg8 Kb3 c2 Qe3 Rh8 Bd2 c1Q Bb4 Qc5 Nd2 Qc6 Rb1 a1N+ Ka2 Nb3 Rc1 Nc5 Ka1 Na4 Nb3 Qcc2 Rb6 Rb7 Qf4 Nc7 Rg6 Na8 Qf3 Qc7 Rc5 Rb6 Rb5 Rd6 Rb7 Rd5 Rf8 Rg8 d8N Bf5 Ne6 Rd7 Rd8 Rd5 Rd6 Rc8 Rd8 Rd7 Qg3+
4RN1K/5b1p/1rq2rp1/2kB4/4RBQn/4nBPn/2nPb3/R1RnNB1r b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 dxc4 h5 g6 h6 Bg7 hxg7 Bh3 Ra3 Bg4 Ra1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 e3 f5+ Kf3 c3 b6 c4 b5 c2 e4 a4 g3 c3 e5+ Kc5 e6 a3 e7 a2 e8B Nh6 g8B Nc6 b7 Ng4 b8R Qf6 b6 Ne7 b7 Be6 Bh3 Ne3 Qf1 Nd1 Na3 Bf7 Bb2 c1N Nb5 c2 Qd3 Ne2 Bc6 c1R Be5 Ra6 Bf1 Rb6 Nd4 Rcb1 Be4 Qc6 Re8 Rc1 b8R Rcb1 Kg2 f3+ Kh3 f4 Kh4 f2 Kg5 f3 Kh6 Nf4 Kg7 Nh3 Bf4 Rc1 Qe2 Nf5+ Kf8 Nh4 Kg7 Rcb1 Bd5 Rc1 Re4 Rcb1 Rbe8 Rc1 Bg2 f1N Bc4 f2 Bf3 Nfe3 Ne6+ Kb4 Nf8 f1B Bb5+ Kc5 Bd3 Nc3 Qd1 Be2 Qa4 Re1 Rc1 a1N Bc4 Bd1 Bf1 Nac2 Ra1 Be2 Rc1 Qc7 Qd7 Qc6 Qg4 Ba2 Ra1 Reb1 Bd5 Ncd1 B3g2 Bac4 Nf3 Rc1 Ne1 Rg8+ Kh6 Rg7 Rg1 Rf7 Bf3 Rf6 Kg7 Rcb1 Kh8 Bb3 Bc4 Rc1 Bb5 Bd5 Bc4 Bf7 Bd5 Qb5 Ng2 Nc3 Rh1 Bd3 B1e2 Qc6 Rf1 Rcb1 Rf2 Rg1 Rff1 Rh1 Rfc1 Ncd1 Bf1 Be2 Ne1
N5Q1/2rbnbp1/2qP2k1/BNr3p1/R1RKRb2/3n4/3rBBP1/1r3rBR b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 a4 exf4 axb5 h6 Qb3 Bf5 Qg3 Bc8 Qg5 hxg5 Kf2 a5 h4 f5 b4 Kf7 e4 c5 d4 a4 b6 c4 b5 a3 e5 f3 Ke3 f2 d6 a2 e6+ Kf6 d7 c3 b7 c2 b6 Ne7 h5 Nec6 e7 Kf7 e8R Be7 d5 Qc7 d8B Rh7 h6 Bd7 Nc3 Kg6 Nf3 Ra7 Be2 f1B Nb5 Bd6 Re4 Ne7 Kd4 f4 Be3 c1R Nd2 f3 Bf2 Na6 b8B Rh8 b7 Bf4 h7 Nb4 Nc4 Nd3 Nb6 Qc6 Na8 Rc5 Ba5 Rd8 Bg1 f2 h8R Qe6 R8h4 Qc6 Rc1 a1R Rc4 Rd1 Bd6 Rb1 b8Q Rc7 Qc8 Bc1 Bg3 Bf4 Bf3 Be2 Qb8 f1R B3f2 Bd1 Be2 Bb3 Ra4 Rdc8 d6 Bf7 Qb7 Rb8 Qc8 Rb2 Qg8 Rd2 Nc3 Rbb1 Nb5 Bc4 Kc3 Bd5+ Rec4 Bf7 Kd4 Bg3 Re4 Be5+ Ke3 Bf4+ Kd4
1k1qRN2/2n1N1nP/2R2bB1/1PNpr3/Br1p1bQ1/1n3KBN/2b3r1/n3B3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 d5 f4 Kd7 h4 Kc7 c4 a5 b4 e5 c5 g5 h5 g3 h6 g4 h7 a4 c6 a3 f6 g2 f7 g3 f5 a2 f6 e4 Nc3 e3 Nh3 g1B Ne4 g2 Bd2 Nh6 Rc1 a1N Be1 Rg8 Kf3 e2 Nc5 Na6 b6+ Kb8 b7 Be7 f8N Nf5 f7 Bf6 Ng6 Bh2 f8N Nc7 Ne7 Bf4 Rh2 g1R Rg2 Rh8 Rg8 Ng7 b5 Ra4 Rc3 Ka7 b8B+ Ka8 Rc4 Rg2 Rc2 Bf5 Rc3 Na6 c7 Nb3 c8B Bc2 Bf5 Rb4 Be5 Nc7 Bg6 Kb8 Bd6 Bc1 Bdg3 Bf4 Nfe6 B6e5 Re8 Rf8 Rc4 Rf5 Nf8 Bf6 Rc3 Bb1 Rc1 Re5 Bc2 Na5 Ba4 Nb3 Nb7 Bd3 Rc6 Bc2 Nc5 Re4 Bd2 e1N+ Kg4 Bb1 Bd3 Nc2 Be1 Re5 Bg6 Nca1 Qe2 Bc2 Qe4 B4g5 Kf3 Bh6 Qf5 Bf4 Qg4
n4B2/bkrBbnKp/1N1PN2n/2Q2p2/n3NR2/5b2/1rPRN2B/q2r3B b - - 0 1 illegal: No proof kernel
qkn3N1/4P3/2BNnN1K/2b2RPb/1r3pR1/2N1Qr2/3BBp2/1Bbr2nb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kh5 f5 e4 a5 g4 d3 b4 d4 c4 d2 e5 f3 e6 d3 e7 f4 c5 h6 g6 f2 g5 a4 g7 a3 c6 a2 Nc3 Ra3 Nf3 Nd7 b6+ Kb8 b5 Nc5 b7 Ne6 Qe1 d1R Be2 d2 Nd4 Nf6+ Kg6 h5 g8B h4 Bh7 h3 Nf5 h2 Nd6 Nd5 Rg1 h1B Rg4 Bg7 c7+ Ka7 b8N Bd4 Rb1 a1B Kh6 Bc5 Nd7 Bb2 Nf6 Nb6 Ng8 Bd7 c8B Kb8 Bb7 Nc8 b6 Be8 Ra1 Bh5 Bc6 Ra4 b7 Rb4 Ra3 Qa5 Ra4 Qa8 Ra5 Ba3 Nf6 Rd8 Bb1 Rd7 Ng8 Bb2 Nf5 Rd3 Nd6 Rf3 Rb5 Be3 Rf5 Bc5 Qg1 Re1 Qg3 d1N Bd2 Bc1 Na4 Nc3 Qh3 Ka7 b8N Rg1 Nd7 Rd1 Ndf6 Kb8 Beb5 Ne2 Nc3 Ng1 Be2 Rd3 Qf3 Re3 Qe4 Rf3 Qe3
2N1n1b1/1pkNK3/B2rprbn/Q2b3R/1P1r1R2/1Nb1B2q/1nN1PR2/4R3 b - - 0 1 legal: proof: f4 a5 c4 h5 b4 d5 cxd5 a4 Qb3 axb3 g4 g5 fxg5 hxg4 Kf2 Kd7 Ke3 c5 Ke4 f5+ Ke5 f4 a4 g3 h4 c4 d4 g2 a5 b2 h5 f3 d6 f2 h6 e6 g6 c3 d5 c2 h7 Ra6 g7 Qe8 Nf3 g1N Bg2 f1B Na3 b1B Nd2 Ba2 Be4 Bg2 Rh2 Bh1 Bd3 Be4 Rf2 Nh6 Kf6 Nh3 g8N Bg6 Ne7 Nf4 Nb3 Kd8 d7 Kc7 d8R Rd6 a6 Bd7 a7 Na6 Be3 c1R a8Q Rc4 Nc2 Rd4 Nc8 Rg8 Bb5 Nd3 h8R Nb2 Re1 Bb1 Qa7 Bc6 Qc5 Bh7 Bd3 Qh5 Qa5+ Kb8 Bb5 Nc7 Ba6 Bg7+ Ke7 Qh3 Rdf8 Ne8 R8f4 Bg6 Rh7 Rf8 Rh8 Rf6 Rh7 Rd8 d6 Bd5 d7 Bf7 Rh8 Bg8 Rh7 Ng4 Rh5 Nh6 Nca1 Bg6 Nc2 Bh8 Nb6 Rc8 d8N Rc6 Nf7 Rd6 Ne5 Kc7 Ned7 Rd3 Ndc5 Rf5 R4f3 Bc3 Ncd7 Rd4 Rf4 Rf6 Nc8+
kq5Q/P2PB2K/b2N4/BN3N1B/1N1rp1R1/6r1/1bBrR2p/nr1nbn2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 h5 Kf4 b5 Kg5 e5+ Kg6 c5 g4 Kc7 f4 Kb7 d4 e4 a4 h3 a5 c4 d6 h4 d5 b3 f6 c3 f7 h2 f5 b2 g5 c2 f6 h3 d7 b4 a6+ Ka7 d6 b3 Ne2 Qe8 d8N Qe5 d7 Bd6 f8B Qa5 f7 Qb6 Nf4 Nh6 Be2 Nf5 Nc3 b1R Bd2 c1B Nb7 b2 Re1 h1N Bh5 h2 Re2 Nhg3 Nd3 Nf1 Nb4 Bg3+ Nd6 Nc6 Be7 Rg8+ Kh7 N5e3 f8N Na5 g6 Be1 g7 Nb3 Ng6 Qb8 Nh4 Bb7 Qc2 Nd1 Nhf5 Bc8 Ra5 Ra1 Qd3 b1R Qh3 Bb2 Rd5 Ra2 Ncb5+ Kb6 Rd3 Na1 Rg3 Ra4 Rg4 Bb7 Nd3 Rd4 Nb4 Bc8 Qh4 Ra7 Qh3 Rc7 a7 Rc2 Bc3 Ba6 Qh4 Rcd2 Qh3 Rd8 g8B Rf8 Bb3 Rg8 Bc2 Rg6 Nf7 Kb7 N7d6+ Ka8 Qh4 Rg8 Qf6 Rg6 Qh8 Rg5 Nd5 Rg8 Ba5 Rg6 Nb4 Rg8 Rh4 Rg3 Rg4
3B1k1N/2b3n1/rqbp2Br/3N2QR/b2pP3/1qNnB2K/2bR3P/3BN2b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 g5 Kg2 b5 a4 f5 c4 b3 e4 f4 h6 b4 c5 f3+ Kh3 b2 c6 b3 a5 f2 h7 Qb6 a6 Bb7 c7 Bd6 c8N Nf6 a7 Bc7 e6 d6 e7 Nbd7 Bb5 Nh5 Nc3 b1B Ba4 b2 Nf3 Bc2 Qg1 b1B Ne1 Ng7 Be3 f1B+ Qg2 Kf7 e8B+ Kf8 Ne7 Ne5 Bg6 Nd3 Ra2 Qb3 Rg1 Bc6 Rb2 Bd1 Rd2 Bfe2 Qg4 Bf3 Qg3 Bbc2 Qh4 Rd8 a8N Bh1 Nb6 Ra8 Nbd5 Ra6 Qh5 Qb6 Rg4 Qb3 Rh4 Qb6 Qh6 Qb3 Rh5 g4+ Kh4 g3 Kh3 g2 Qg5 Qb6 Bb3 g1Q Ba4 Rg8 h8B Qf2 Bb3 Qf7 Ba4 Ne8 Bf6 Rh8 Nf5 Qe6 Bd8 Ng7 Bb3 Qf7 Nh6 Qg8 Nf7 Rh6 Bc4 B2a4 Nh8 Bdc2 Bb5 Nb4 Be2 Nd3 Bd1 Qf7 Nb4 Qb3 Nbd5
4Q2n/3NKNN1/1p2B1R1/q1kBq2q/nbPp3r/4r2B/1N1B1PbR/3qq3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 d5 Kd3 Kd7 a4 Kc6 g4 h5 c4 e5 a5 b6 f6 b3 f7 h4 g6 h3 g5 h2 g7 b2 g6 Bd7 a6 Rh5 a7 Qe7 Qa4+ Kc5 Bd2 Rh4 Ne2 Bh3 Nf4 Bg2 Qe8 Nh6 g8N Nd7 g7 Qf6 Rg1 h1Q Nc3 Qe6 Nd1 b1Q+ Ke2 e4 Nh5 d3+ Ke3 Qb3 Nb2 Qb4 Rd1 Be7 f8N Nf7 Nh6 Nh8 g8B Qa5 Nf7 Qe5 Ng7 Rc8 a8B Rc6 Rc1 Re6 Rc3 Qhh2 Rh1 Qh5 Rb3 Q2e5 Rh2 Bd6 Be2 Be7 Bg4 Bd6 Bh3 Be7 Bc1 d2 Ra3 d1Q Bd2 Bd6 Rc3 Kb4 Bb7 Nc5 Nd7 Na4 Bc6 Qeg5+ Kd4 e3+ Bg4 e2 Rg3+ Nc3 Ba8 e1Q Bb7 Re3 Bc8 Be4 Be6 Qe7 Rg5 Bc5+ Ke5 Bg2+ Kf5 d4 Bd5 Qe4+ Kf6 Bd6 Rg6 Bf8 Nde5 Kc5 Bh3 Na4 Bde6 Bd6 Nd7+ Kc6 Rh1 Bb4 Rh2 Qed5 Nb8+ Kc5 Ke7 Qhe5 Nd7+ Kc6+ Nd6 Qeh5 Bf7 Be4 Bef5 Bg2+ B7e6 Qe5 Be4+ Qed5 Nf6+ Kc5 Nf7 Qdg5 B4d5 Qe5 Nd7#
nKb2R2/1P1R1n1n/bQR3Bn/qp3rqB/1N1RBB2/1P2r2p/4N1k1/2n5 b - - 0 1 legal: proof: f4 b5 h4 g5 c4 e5 a4 exf4 a5 d5 cxd5 gxh4 Ra4 Bc5 Ra1 Bb6 axb6 Bh3 Ra4 Bf5 Ra1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 f5+ Kd3 a5 e4 c5 g4 h3 b3 c4+ Kc3 a4 Kb4 a3 g5 f3 g6 h2 g7 h4 Nd2 h3 Rb1 a2 Bd3 a1Q Nf1 f2 Ne3 f1N Ne2 f4 Nc2 Nh6 g8B f3 Bf7 c3 Bg6 Ne3 Rf1 Neg4 Bf4+ Ne5 Rc1 h1B Qe1 Qh4 Qf2 Rf8 Qe3 f2 Bh5 Ba6 b7 Rf5 Rfd1 f1N Qf2 Qb1 Ka5 Nd2 Kb6 Qg5 Nb4 c2 Qe3 Nf3 Rd2 Kd7 d6 Ke6 Kc7 Qa2 d7 Nef7 d8R Nd7 e5 Nb6 Rd7 Qa5 Be4 Re8 Rdd1 Re7 Kb8 Na8 Bg6 Nh4 Rd3 Bf3 Rd2 Bg4 Qg1 Nd8 Bh5 Ng6 d5+ Kf7 e6+ Kf6 d6 Ndf7 Rdd1 Nf8 Qb6 Nh7 Rd4 Re8+ Rd8 Re7 d7 Re8 Rc8 Re7 Rcd1 c1N d8R Re8 Rc6 Re7 Bd2 Ke5 Rf8 Rc7 Rcd6 Rc3 e7 Rg3 e8B Re3 Ng1 Kf4 Rc6 Kg3 Ne2+ Kf2 Bg6 Rf6 Bh5 Bc8 Rd7 Rf5 Rd4 Rg3 Bf4 Rc3 Rd7+ Re3 R1d4 Kf1 Bd3 Kg2 Bb1 Nd8 Beg6 Ndf7 Be4+
3r1B1q/1p1Q1nq1/q6B/pPbr1n1q/1R1RB3/1NN5/2PK1b2/R1B2kRq b - - 0 1 illegal: No proof kernel
3BKBn1/P1BN3p/1rbrPQ2/qk4N1/rb6/2RRq1r1/5p1N/rNnB4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 a4 c5 d4 b5 e4 c4 g4 c3 e5 b3 a5 b4 a6 c2 e6+ Kd6 a7 b2 g6 b3 g7 Qh4 g5 Na6 g6 Bd7 Rh3 Nb8 Be2 Be7 Ra3 Bf8 Qf1 Nc6 Bd1 Rd8 Bd2 c1Q Bb4+ Kc7 d6+ Kb6 d5 Qe1 Rg3 Be8 d7 Na5 d6 Qe5 Qf2+ Kb5 Nh3 Qec5 Ng5 Q1e3+ Kg2 f3+ Kh3 f4 Kg4 Qb6 Kf5 Qa6 Rh3 Be7 Qh4 f2 Bc5 f1R Qf2 Nf6 g8N f3 Nh6 Ng8 g7 Qb6 Qh4 f2 Ng4 Rg1 Qh6 Rg3 Qf6 Rc8 d8B Bc6 d7 Qa6 Bd4 Bb4 Bc7 Rb8 d8B Rb6 Nd2 b1R Bc5 b2 Rd3 Rc1 Nh2 b1R Bf8 Ra1 Nb1 Nb3 Rc3 Qa5 Rd3 Qf3+ Ke5 Rc5+ Kd6 Nc1 Rc3 Qe3 Rd3 Bb7+ Kd7 Rc2 Rc3 Rca2 Ke8 Ra4 Rd3 Ne7 g8N Bg2 Nh6 Ng8 N6g4 Be4 Ne5 Bc6+ Nd7 Rf3 Rc3 Qe1 Bc5 Qe3 Kf7 Qe5 Nf8 Nh6+ Ke7 Rd3 Rg3 Rd4 Ne4 Rg8 Rgd3 Rg3 Nd7 Ng8+ Ke8 Qg5 Bce7 Qe3 Ng5 Rd6 Bf8
N5RB/4K1n1/2b1B1rB/b2p4/q1Pq1B2/kn1p1b2/1RqP1r2/Q1R1bNR1 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 gxh4 Qg4 f5 exf5 Nf6 Qe4 Ng8 Qd4 cxd4 Ke2 h5 Kd3 a5 Kc4 d5+ Kc5 Kd7 g4 a4 b4 d3 c4 h3 f4 h2 f6 h4 f5 h3 b6 a3 b5 a2 g5 Rh7 g6 Rg7 f7 Nc6 b7 Qa5 b8Q Nf6 Bb2 Nh5 f6 Nd4 Na3 Qa4 b6 Bb7 Nf3 Bc6 Rc1 a1Q Rg1 h1B b7 h2 Nb5 Bg2 Be2 h1Q Nh2 Bf3 Nc7 Rg8 Nf1 Ng7 Bc3 Qh8 Bb2 Qb1 Bc3 Ra7 Na8 Qbc2 Bd1 Ndf5 Be5 Nd4 Bh2 Ra6 Bf4 Qh4 Be2 Rh8 Bd1 Qg4 Be2 Rh2 Bd1 Rf2 Be2 Ne8 g7 Qh4 g8R Ng7 Qd8+ Ke6 Qb6 Kd7 b8B e5+ Bd6 e4 Qb1 Be7 f8B e3 f7 Bd8 Bde5 Ba5 Bd1 e2 Bf6 Nh5 Bh8 e1B B8h6 Ng7 f8R Qg4 Rb8 Ke6 Bfg5 Ke5 Rb6 Ke4 Kd6 Nb3 Rb5 Kd4 Ke7 Qh4 Rb6 Kc5 Rbb8 Qd4 Bf4 Rb6 Be2 Kb4 Bd1 Bh1 Bg4 Bf3 Be6 Ka3 Rb7 Ra6 Rb6 Nc5 Rb2 Nb3 Bf5 Bd7 Bg4 Rg6 Be6 Bc6 Qa1+
n4N2/N2R1qbq/B1q2p1P/Bb1R4/5b1r/Kn2BP1p/N1br3B/Qk2N3 b - - 0 1 illegal: No proof kernel
q4qk1/2R1BbNn/1RRQBpP1/Pp1K3R/1b1b4/1n2rr2/4N1B1/1B2b2r b - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 c5 Kf3 h5 Ke4 b5 g4 c3 a4 c2 d4 h4 d5 b3 a5 c4 g6 b2 e6 f6 g7 h3 e7 Kf7 e8B+ Ke7 g5 h2 d6+ Ke6 d7 c3 Nd2 b1Q Ba3 Ne7 Nb3 Ng6 Be7 Rh3 Bg2 Rf3 g8R Ra6 Rg7 c1B+ Kd4 c2 e4 Bf4 e5 c1B Ne2 Bg3 Rh7 Be1 Bf7+ Kf5 e6 Bb2+ Kd5 Bd4 Qd2 Nc6 Nc5 Qb4 Rc1 Bb7 Rc2 Qa8 d8R Bc8 Rc4 Bd7 Rc2 Be8 Rb8 Rb6 Bg8 Bf7 Rb7 Ra6 Rb6 Ra7 Rh5 Rb7 Rf1 h1R Bh7 Rb8 Rc3 Re8 Rc4 Bh4 Rfc1 Be1 Bg8 Bh6 R4c2 Nf8 Qf4+ Kg6 Qd6 Kg7 Bh7 Re3 Bhe4 Rc8 g6 Nh7 Rc3 Rh8 Bb1 Kg8 Bf8 Ne5+ Qc6 Nd7 Rf5 Bg7 R1c2 Be8 e7 Bf7+ Ne6 Ng5 e8B Nc5 Bd7 R8h3 Rc1 Nh7 Rh5 Rhg3 Bd6 Bf8 Rc4 Be8 Ng7 Bf7+ Be6 Nb3 R1c2 Rgf3 R4c3 Qd8 Qd7 Be7 Rc7 Qa8+ R2c6 Bf8 Bh2 Qe7 Bd6 Qee8 Bc5 Bd6 Qd8 Qf8 Qe7 Bdg3 Qd8 Bb4 Be7 Bge1 Qd6
1nN1N2n/bBr4R/1P2bKNq/Qp6/1R2N3/b2nkbq1/r2P1p2/B1B3B1 b - - 0 1 illegal: Other
4Qqr1/R3B2R/1pBrq2B/1K1b3p/Rb3P2/Rn1N1N1n/4b1Pb/Bk4q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 a4 Ke4 d4 c5 f6 e5 f7 h5 d6 b6 d5 b3 a5 b2 a6 h3 d7 h2 a7 Rh6 d6 Bb7 Nh3 Ne7 Qa4 Na6 Nf4 Nd5 Ne6 Nf4 Ra2 Bd5+ Kb5+ c4 Na3 b1B Rg1 h1Q Nd4 c3 Bb2 c2 Ba1 c1B Nc4 Bd3 Nf3 Nh3 Ra3 Bf4 Be2 Rb8 a8R Bh2 Ra7 Nc5 Rd1 Be7 f8B Nb3 Rd2 Qe8 Rda2 Qg1 Bg7 Rf6 Bh6 Qf8 d8B Re6 d7 Bb4 Bf1 Rd6 Be7 Be2 d8R Kd3 Rdd7 e4 Nb2+ Kc2+ Nd3+ Kb1 Rdb7 e3 Rc7 Ba5 Qe4 Rc8 Qg6 Bb4 Qe8 Bd1 R3a4 e2 R2a3 e1Q Qg6 Qc3 Nc5+ Qf5 Bd3+ Bc2 Be4 Re8 Bf6 Qce1 Ng5 Ba8 f4 Rg8 Rh7 Qee3 Bd5 Qee6 Qe8 Bd1 Nf3 Be2+ Nd3 Bb7 Be7 Qf8 Bc6 Ba8 Bd7 Bd5 Bc6
R6N/K3b2P/n1N1N1Pk/bBNqn2p/1rn3R1/2B3q1/1pb1B1Q1/1rb1B3 b - - 0 1 illegal: No proof kernel
2RR1b2/1KRq3p/1Pnr1N1P/1N3p1b/1B3N2/Q1RN3n/2B4n/k1qrr1n1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 g4 Ke6 d4 Kd5 c4+ Ke6 h4 a5 b6 f5 g5 a4 c6 a3 c7 f3 Ke3 a2 h5 f2 d5+ Ke5 d6 e6 g6 Bd7 c8N Ra5 h6 Ra4 c5 Rd4 c6 Nf6 c7 Nh5 g7 Nc6 g8N Be8 d7 Rd6 Nh3 Nf4 Na7 Bh5 c8R Qe8 d8R Qd7 Bd3 f1N+ Kf2 Kd4 Bc2+ Kc4 Nb5 e5 N1c3 Nh2 Ba3 e3+ Kg3 e4 Nf2 e2 Nd3 e1R Rc1 a1Q Bb4 e3 Nd5 e2 Ngf6 Nh3 N5f4 Qb2 Rf1 Qc3 Rf3 Qa1 Qd2 Rd1 Qe3 e1N Qe6+ Rd5 Re3 Nef3 Qg8 Nfg1 Re7 Qd6 Rec7 Qd7 Qf7 Ng5 Kf2 N5h3+ Ke3 Qb2 Bb1+ Kb3 Bc2+ Ka2 Qg8 Ne7 Qg3 Rd6 Rc3 Nd5+ Kd4 Ne7+ Kc5 Qb1 Qg8+ Ka1 Qb3 Rg8 Rc7 Rg6 Rcc8 Re6 Rc7 Ree1 Rcc8 Qe8 Kd6 Nc6+ Kc7 Qe6 Kb7 Qd7+ Rc7 Rf1 Rc8 Rde1 Rd1 Qc1 Rd2 Rd1 Re2 Rfe1 Ree8 Bg7 Red8 Bf8 Ne4 Re6 Nf6 Rd6 Qa3+
1b1qnN2/Q1B1N1Pn/r2B3R/R1Nq1k2/1rp1b3/1b2Bp2/1bN1P3/1n1B1K2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 c5 d4 h5 g5 a5 d6 Ke6 b6 f5 b5 h3 b7 f3 g6 h2 d7 f4 g7 a4 b6 a3 d5+ Kf5 d6 h4 Qd4 h3 Nc3 a2 Nd5 Ra6 Be3 Nf6 Bg2 f2+ Kf1 Ne8 Nf3 Rh4 Ne1 Be7 Nc2 Bf8 Rb1 a1B Rb5 Bb2 Ra5 Be7 Bf3 Bf6 Bh5 Be5 Bf7 Rg4 Rg1 Rh4 Rg6 h1B Rh6 h2 Qa4 Be4 Qa2 Qf6 d8N Nd7 b8N Nf8 b7 Be6 Nd7 Nh7 b8B Rg4 Nb7 Qd8 Nf8 Rh4 Nb6 Bb3 d7 Bc7 Nc8 Bd6 Rg6 Bde5 Bd6 h1Q+ Rg1 Qf3 Rg6 Rg4 Rh6 Rh4 Be7 Bb8 Bd6 Qh5 Bd5 Qf7 Bc6 Qd5 Qa4 c4 Qa2 Rh5 Ba4 Rg5 Nc5 Rg6 Bc7 Rgb6 Bd6 Rb4 Ne7+ Kg4 Nd4 Ra8 Rb5 Bd1 Bb3 Ra7 Qa6 Kg5 Ra5 Kg4 Qb7 Ra6 Qa7 Bdc2 Nf3 Bd1 Kg2 f1N Kf2 Bdc2 Ne1 Nd2 Ba4 Nb1 Kf1 f3 Bb3 Qc8 d8B Qd7 B8c7 Qd8 Nc6 Kf5 Ba4 Bcd3 Bd1 Bc2 Ne7+ Kg4 Bg1 Bb3 Nc2 Kg5 Be3+ Kg4 Neg6 Kf5 Ne7+
1q2RRB1/2P5/1R3rb1/p4nB1/3bR2n/1Q1KbN1P/qb3knp/1B1B1rN1 b - - 0 1 illegal: No proof kernel
6kr/1bpK1n1b/2BRR1Br/2P2pq1/2q1RBNb/qQ2N1BP/1b2n3/4R3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 g5 dxe5 gxf4 Kf2 a5 c4 f5 b4 Kf7 e4 d5 e6+ Kg7 h3 f3 Ke3 g3 Kd4 g2 Ke5 a4 b6 a3 b5 d4 e7 f2 e8B a2 b7 d3 b6 d2 Nc3 Nd7+ Ke6 Bb4 b8B Ra4 e5 Nh6 b7 Qg5 Bg6 Qf4 Ba7 Qg3 b8R Bb7 Qb3 d1B Bf4 Nb6 Nd5 Be7 Ne3 Nd5 Kd7 Ra6 e6 Bh4 e7 Nf7 e8R Nc3 Re6 Ne2 Nf3 g1Q Bg2 f1Q Nh2 Rc6 Rc1 a1B Rbe8 Bb2 Nhg4 Ra6 R8e7 Kg8 Bc6 Bc2 Re4 Bb1 Rc3 Ba2 Rd3 Qgf3 Rd6 Rb6 Ne5 Qg5 N5g4 Qc1 R7e6 Qc2 c5 Qc4 Re1 Ra6 Bb6 Qg3 Nd1 Qf3 Ba5 Qfc3 Qb5 Qa3 Nde3 Rh6 Re8+ Kg7 Rdd1 Ra8 Rf1 Nd8 Bb6 Qca4 Ba5 Bg8 Be1 Qc4 Qb3 Bh7 R8e6 Nf7 Rdd6 Rh8 Beg3 Kg8 Re1
6r1/1p2r1N1/n2NB1n1/q1rbR2q/NP3pB1/1B1rP1bN/Q7/KRB3kb b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 b4 a4 Qb3 axb3 Kd1 Kd7 g4 Kd6 a4 Ke5 d4+ Ke4 g6 f5 g7 h5 e3 c5 a5 h4 g5 f3 a6 f2 a7 h3 g6 b2 Kc2 h2 d6 c4 d7 c3 d5 Ne7 g8B Rh7 d6 Qa5 d8N Na6 g7 Be6 d7 Ng6 Nh3 Kf3 Nf7 Bd5 d8N Bd6 Be2+ Kg2 Bg4 f1Q Ne6 Bg3 Nd6 f4 Bf7 Qf3 g8B Rd8 a8Q Rg7 Rf1 h1B Rd1 Rh7 Ng7 Rf8 Bfe6 Qe2+ Nd2 b1R Re1 Qf3 N2e4 Rb3 Nc5 Kh2 Bgf7 Rg8 Na4 Ra3 Kb1 c2+ Kb2 Rd3 Rd1 Qe2 Rb1 Kg2 Ka1 Qf3 Bb2 c1R Qa7 Rc5 Bc1 Be4 Bb3 Bd5 Bfe6 Kh2 Nge8 Re7 Ng7 Rdc3 Rd4 Rd3 Re4 Kg2 Re5 Kf1 Bgf5 Qh5 Bg4 Rcc3 Qd4 Rc5 Qc3 Kg2 Qb2+ Kf1 Qa3 Kg2 Qa2+ Kf1 Ng5 Kg1 Nh3+
R5N1/1BNnN1r1/1q1r1r1P/1p2prrR/2NrP1BB/2Q4n/1B2b3/5kbK b - - 0 1 legal: proof: f4 a5 c4 h5 b4 d5 cxd5 axb4 g4 g5 fxg5 hxg4 Kf2 Kd7 Kg2 Kd6 e4 Ke5 h4 Kd4 a4 f5 d3 c5 g6 b5 g7 e5 h5 f4 d6 c4 d7 f3+ Kh2 b3 a5 b2 a6 f2 h6 g3+ Kg2 c3 a7 c2 Bd2 c1R Ra6 Ne7 g8N Ng6 Qc2 Rh7 Rh5 Bc5 Nc3 b1R Be2 f1R Kh1 Rf5 Bg4 Rb4 Nd5 Rg7 Nde7 Rd1 Bc1 Nf4 Bb2+ Ke3 d4 Qb6 d8B Nh3 d5 Nd7 d6 Rbd4 Qc3+ Kf2 Ra2 R1d3 Nf3 Kf1 Ra3 Rb8 a8B Rf6 Bb7 g2+ Kh2 g1R Ra8 Rg2+ Kh1 Rdd2 Be6 R2g5 Bg4 Nf8 d7 Rf2 Ne1 R2f5 Nc2 Rdd6 Na3 Bg1 Nc4 Rd4 Bc7 Rdd6 d8N Nd7 Ne6 Rd4 Ra3 Rd6 Bd8 Ra8 Nc7 Ra4 Na5 Rad4 Nc4 Nf8 Bf3 Be6 Ra8 Nd7 Na5 Bc4 Bg4 Be2 Nc4 Rf8 Nc8 R5g6 Bh4 Rgg5 Nce7 R8f7 Qb3 R7f6 Qc3
Rqbn1N2/Q3k3/rr1BP1p1/b1b5/p1Rbb1B1/R3b2P/K1NN1N2/1R2n3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 d4 a5 Kd2 f5 Kc2 c5 e4 f4 b4 a4 Kb2 g3 d5 c3+ Ka2 f3 e6 c2 e7 g2 e5 f2 b6 c4 b7 c3 b5 g6 d6 Qd7 b6 Kf7 e8R Ra5 e6+ Kf6 Be2 f1B Nd2 Qb5 d7 Ra6 d8R Nh6 Rd4 Nf5 Nh3 g1B Rc4 Nc6 b8N Bg2 b7 Nd8 Bg4 Bd4 Qg1 Bfc5 Nc6 Ne3 b8N Be4 Nf2 Ng2 h3 Ne1 Nb4 Rh5 Bb2 c1B Nc2 Rh4 Rh8 Ke7 Nd7 Qb8 Nf8 Rh5 Rb1 Rd5 Ba3 Rdd6 Bb4 Bb2 Ba5 Rdb6 Rh2 Bba3 Rg2 Bab4 Rg3 Rb5 Bc7 Ba5 Nb4 c2 Ra3 c1B Nc2 Bd5 Qg2 Ba8 Qb7 Rbb6 Qa7 Be4 Rf3 Bcb7 Ra3 Nc6 Nf1 Bce3 Nh7 Qe8 Nd2 Qa8 Rb8 Bc8 Nf8 Qb7 Ra8 Nd8 Rac3 Qb8 Rcb3 Bd6 Ra3 B6c5 Bd6+
1bB2QR1/1B4K1/1N2r1NR/RR2nBbp/bPk2Pnp/2B5/1qn5/2bn3r b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 h5 Kd3 Kf7 Ke4 a5 Ke5 d5 g4 d3 f4 d2 c4 a4 b4 a3 f6 d4 c5 d3 c6 a2 c7 Bh6 b6 Bd7 c8B e6 b7 Nc6+ Kd6 e5 b8R e4 g5 e3 Bh3 e2 Nf3 e1B Bf5 Bf2 Bb2 Be3 Na3 Ra5 Rc1 a1B Nc4 Ba7 Bd4 Bb2 Qb3 Ra1 Nfe5+ Ke8 Rb6 Bb8+ Kd5 Kf8 f7 Ke7 f8R Rh7 Rc3 Rd1 Rh3 Rh1 Rf6 Qf8 Rg3 Qg7 Rc2 Bc1 Ra2 Qh8 Ra5 Rg7 Bb7 Rg6 Rd6 Be8 Bfc8 Rf6 g6 Bd7 g7 Rg6 Kc5 Nf6 g8B Be8 Rg5 Ng4 Kd5 Rf6 Rg6 Bg5 Bh7 Qg7 Qd1 Qh8 Rd8 Re6 Rh6 Qf6 Ke4 Qh8 Kf5 Bd7 Nb2 Kd6 Rg8 Be8 Na4 Qg7 Bc5+ Kd5 Be7+ Kd4 Bf6 Qh8 Nd7+ Kc4 Nf8 Qg7 Ba1 Qc3 Qg1 Nce5 Qc5+ Kb3 Qe7 Kc4 Bb2 Qc2 Bd4 Qb2 Qd8 d1N Bc3 d2 Qe7 Ndf2 Qf7 d1N Qg7 Nfd3 Qf6 Nf7 Kg6 Qa1 Kg7 Nfe5 Bf5 Ne1 Ng6 Qb2 Qf8 Bc6 Nc5 Ba4 Rbb5 Nc2 Nd7 Rh3 Ra6 Rh2 Raa5 Rh1 Nb6+
3brq2/bq3q2/b1Rpb1Q1/1B1Npn1B/RK2PBR1/6rB/P2kN3/3b3R b - - 0 1 legal: proof: g4 a5 d4 g5 b3 f5 b4 axb4 d5 Na6 h3 Nc5 d6 Ne4 gxf5 g4 h4 Ng5 hxg5 cxd6 Rh6 d5 Rh1 d4 Kd2 Kf7 c4 b5 f4 h5 e4 e5 g6+ Kf6 c5 d6 g7 b3 c6 b4 c7 d3 Qf3 b2 Bg2 b3 Kc3 h4 Na3 b1Q Qe2 h3 Qb2 d2 Nc4 d1B Kb4 h2 Bh3 g3 Ne3 g2 Ne2 Nh6 g8B g1B Bc4 Rg8 Bb5 Be6 c8B Be7 Qa3 b2 Nd5+ Kf7 f6 Kg6 f7 Nf5 f8R Ba7 Rf7 Qf8 Qg3+ Kh5 Qg1 Rg3 Rg7 Bd8 Rc7 Rb8 Rc6 Kg6 Qg2 Kh5 Rg1 h1Q Bg4+ Kh6 Bh5 Qh4 Rh1 Qhe7 Rh4 Qb7 Rg4 Qd3 Qg1 b1B Bd7 Qf3 Be3 Nd4 f5+ Qf4 f6 Bd3 f7 Nf5 Rh4 Kg5 Bd2 Qe7 f8R Qf7 Rac1 Ra8 Rh1 Rc8 R1c3 Rb8 Ra3 Ra8 Ra4 Bc4 Bg6 Kg4 Be3 Kf3 Rg8 Qh6 Bf4 Qhf8 Qh2 Rb8 Qh7 Rc8 Bh5+ Kf2 Rh2+ Ke1 Rg4 Rb8 Qg6 Bd3 Ne3 Kd2 Bc8 Bg5 Bd7 Re8 Rh1 Bd8 Nd5+ Ne3 Rg5 Qa6 Bc4 Bg4 Be6 Bf3 Bh3 Bg4 Nb6 Bd7 Nd5 Be6 Rg4 Qc8 Bb3 Ba6 Bc4 Qcb7+ Bb5 Rg2 Bh2 Nf5 Ne3 Rg1 Bf4 Rg3 Nd5+
N4nnq/K4RR1/1n1bQ1b1/3pq1p1/2PBq1BR/1kBB1RPq/5N2/4r1q1 b - - 0 1 legal: proof: f4 c5 h4 e5 a4 exf4 d4 cxd4 h5 g5 Nc3 a5 Nb1 b5 axb5 Ra7 Kd2 Ra6 Ke1 Rg6 hxg6 Qb6 Bd2 Qf6 Bc1 Qd8 Kf2 Ke7 b4 Kd6 c4 f5 e4 h5 e5+ Ke6 g7 d5 b6 a4 b5 h4 g3 a3 b7 d3 b6 h3 Qe2 a2 Bb2 f3 Ke3 f4+ Kd4 f2 Nc3 d2 Nb5 d1N Bc3 h2 Nh3 Nd7 b8R f3 b7 Nb2 Nc7+ Kf5 e6 Bd6 e7 Nf8 e8B Na4 Re1 a1Q Na8 Nb6 Bd7+ Kf6 Bg4 Bf5 Qe4 Bg6 Bd3 f1Q Nf2 Qh3 Re3 Rh5 Rf1 h1Q Rc8 Qg1 b8B Qhg2 Ba7 Rh1 Rc7 Qh3 Rd7 Qh8 Qe8 Qe7 Re4 Qb2 Bh5 Qe6 Rh4 Qh3 Bg4 Qgg2 Rb1 Re1 Qc8 Qe2 Rb3 Qe6 Qa6 Qf5 Rf7+ Ke6 Nh1 f2 Ra3 f1Q Nf2 Qfg1 Rb3 Bb8 Kc5 Qe4 Kc6 Be5 Kb7 Kd6 Ra3 Kc5 Rb3 Nh6 g8R Bd6 Rgg7 Ng8 Qa2 Qee5 Qe2 Qef4 Qe6 Q4e4 Bb8 Qfe5 Ka7 Qhh2 Ra3 Qh3 Bd4+ Kb4 Bc7 Nbd7 Rc3 Ka4 Ba5 Nb6 Rb3 Qgf1 Bac3 Qg1 Rb2 Ka3 Re2 Ka4 Re3 Kb3 Ref3
R1n1NB2/1qpNnbQ1/k1r1b2n/3N1R2/npP2Nn1/4P1b1/KR6/3BR2q b - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 b4 axb4 h4 b5 Qd6 f5 Qd5 Ra6 Qd1 Rg6 Kd2 fxg4 Ke1 g3 Ba3 g4 Bc1 Rg5 hxg5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 h5 c4 d5 Kc2 Kd7 Kb2 Kc6 a4 Kb7 f4 g2 g6 h4 a5 g3 f5 d4 f6 d3 e6 h3 e7 h2 e8R d2 e3 b3 f7 b4 g7 Nd7 Re5 Nb6 Re7 Ka6 Ra2 Rh6 Qg4 d1N+ Ka1 Be6 Ne2 g1N Bh3 g2 Qd4 Qb8 Bg4 Nf2 Nf4 Ne2 Nc3 g1Q Ncd5 Nc8 Rb2 Nc3 Bd1 Na4 Qf6 Qg2 Re1 h1B Re8 Be7 f8N Ng4 Nd7 Bd6 Rf8 Qb7 Qc3 Rg6 Rf5 N8h6 g8N Qf3 Qg7 Rf6 Rc2 b2+ Ka2 b1N Bb2 Rg6 Ngf6 Nbc3+ Kb3 Bf7 Ne8 Bg2 Ba1 Bh3 Ra2 Qh1 Rb2 Ne2 Ka2 Nd4 Kb1 Nc6 Ka2 Ka7 a6 N6e7 Nd3 Bg3 N3f4 Ka8 a7 Rc6 Qd4 Qa6 Qg7 Kb7 a8R Qa7 Rbe2 Ka6 Be5 Bg8 Bd6 Bf7 Rb8 Qb7 Rb2 Neg8 Bf8 Nge7 Re5 Nh2 Rh5 Bhe6 Rf5 N2g4 Ra8+
R1N1rb2/NpK5/p3B2R/2b3bk/PP1n1Bq1/3q1N1B/1B2b1nN/1Qn2q2 b - - 0 2 legal: proof: g4 d5 h4 g5 f4 e6 f5 exf5 c4 fxg4 cxd5 g3 Bg2 g4 Bh3 Kd7 Bf1 Ke8 Nh3 c5 Bg2 a6 Bf1 Nc6 Ng1 Bf5 Qb3 Rc8 Qc2 Rc7 Qb3 Re7 Qd1 Re6 Bh3 Rg6 Bf1 Rg5 hxg5 Kd7 Bg2 Ke7 Bf1 Ke8 b4 h5 e4 f6 Ke2 Kf7 Ke3 Kg6 Kf4 g2 a4 g3 d4 c4 d6 c3 d7 c2 e5 h4 d5 h3 e6 h2 e7 Qe8 d8N Bg7 d6 Nh6 d7 Qg8 e8N Bd3 Nd2 f5 Bb2 c1N Ngf3 g1B Nd6 g2 Nc8 Nd4 Nc6 Be2 d8B Ng4 N6a7 Ne3 Bc7 Kh5 g6 Bf8 Ke5 f4 g7 Qh7 g8B Qd3 Bc4 Bf2 Ra2 g1B Be6 Bh4 Bfh3 Bg5 Nf1 Ng2 Qc2 Be3 Qb1 Rg8 Rg1 h1Q N1h2 Rh8 Re1 Qg1 Bd6 Bf2 Kd5 Rg8 Kc5 Rh8 Kb6 Rg8 Kc7 Rh8 Nh4 f3 Bf4 Be3 Rd1 f2 N4f3 f1Q Rd2 Nh4 Ra3 Qg4 Rc3 Ng2 Rc6 Bc5 Rd6 Re8 Rd8 Bf8 Rc2 Qa3 Rc6 Bf2 Ne7 Qd3 Ra8 Nf5 Nec8 B2c5 Bc4 Nd4 Rf6 Bce7 Be6 Bc5 Rh6+
R3q1B1/1pK1Nk2/B1Pr1p2/r2b1P2/1r2N2Q/4r1br/BRRq1Br1/n1R5 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 d5 hxg5 c5 b4 axb4 Qd2 Nd7 Qe2 Ndf6 Qd2 cxd4 Qd1 d3 Be2 d4 Bf1 Nd5 exd5 Ra4 Nh3 Ra5 Ng1 Ra8 Kd2 h5 g4 e5 a4 h4 f4 e4 c4 h3 f5 b3 d6 b2 g6 h2 c5 f6 g5 Rh6 c6 Qd7 a5 Qc7 a6 Ne7 g7 Nd5 g8B Rh4 g6 Rg4 a7 Ne3 g7 Rg2+ Ne2 Be6 Nc3 b1R Qa4 Bd5 Ra2 Qd8 Rc2 Rb4 d7+ Ke7 Be6 Qe8 g8B Bh6 d8R Bf4 Rg1 h1R Bef7 Bg3 Bb2 Bf2 Nf4 Bg3+ Be2 Kf8 Rgc1 Rh3 Ng6+ Kg7 Ne7 Kf8 Ba1 Kg7 Rb2 Nc2 Kd1 e3 Ne4 d2 Ba6 Rg1+ Ke2 d1R Kf3 e2 Rd7 e1R Rd6 d3 Be6 Rb8 a8R d2 Bef7 Rg2 Rd8 Bc4 Rd3 Rd8 Rc3 Rd5 Be6 Ra5 Bef7 Be6 Rc5 Bc8 Ba2 Be6 Rc3 Bd5 Rc4 Na3 R4c2 Ree2 Rb3 Ree1 Bd4 Kf8 Bf2 Re2 Rcb2 Nc2 Rc3 Na1 R1c2 Rdg1 Rc1 d1Q Rc4 Qd2 R4c2 Rbb5 Qd4 Rd1 Qb4 Qd4 Qe1 Rb4 Qh1 Qd2 Qh2 Rh5 Qh4 Re3+ Kg4 Qe1 Qh3 Rc5 Bh7 Bc4 Nd2 Ree5 Kf3 Ra5 Qg4 Rh3 Qh4 Qh1 Rd8 Kf7 Ra8 Rec5 Ke4 Re5+ Kd4 Qg1 Bb3 Re6 Ba2 Rde1 Ne4 Re3 Ra7 Qe1 Ra8 Bb5+ Kc5 Qd2 Kb6 Bc4+ Bb5 Rd6 Kc7 Bb3 Ba6 Bd5 Bg8+
1K2k1qN/R2qpP2/R1BrR3/b2qp1q1/BQ3Bn1/r3PNB1/b1q5/2R2q2 b - - 0 1 illegal: No possible last move, all moves rejected
R7/1R1B1b2/bq3pp1/k1q1q1Nq/rR2PQP1/6Kb/3n1NBR/bBr1B3 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 Nc6 h6 g6 Rh5 Nce7 Rh4 Nf5 Rh1 Ng7 hxg7 Qf6 Be3 Qb6 Bc1 Qd8 Kf2 h5 b4 d5 g4 Kd7 c4 Kc7 c5 a5 e3 d3 c6 Kb6 c7 d2 Ra3 a4 Qe2 d1Q Qc2 h4 Nd2 d4 Qa2 f3 Rh3 d3 Qc2 Ba6 c8B Nf6 g8B Bg7 Rh2 h3 Rb3 a3 Rb2 a2 Qa4 a1Q Bd7 Qc2 Kg3 f2 Ndf3 d2 Ng5 d1B Bd2 Qc5 Bg2 f1B Be1 Bb3 Rb1 Ne8 Rb2 Nd6 Ra2 Bc3 Rb2 f6 Rb1 Bc2 Ba2 Nc4 Rb2 Nd2 Bb1 Bb3 Ra2 Bf7 Ra3 Kc7 b6+ Kb8 b7 Ka7 b8R Qdb6 b5 Rc8 Qf4 Qb2 Rh1 h2 e4 Rc6 N1h3 Rc8 Rg1 h1Q Nf2 Qh5 Rh1 Bd4 Rh2 Qbc3+ Bf3 Bh3 Ra4 Qca5 Bg2 Ba1 Rb4 Rc6 Rh8 Qe5 Rc8 Rc1 Rf8 Qbc5 b6+ Kb7 Rg8 Ra7 Ra8 Qab5 Bf5 Kc6 b7 Kb6 b8R+ Ka5 Be6 Qbb6 Bc8 Rd7 Rb7 Rd4 Bd7 Rdc4 Rb3 Ra4 Rb4
kr1B3b/1pBR4/1b1n4/Q1N5/r2b1PB1/2NRr1N1/nPbKp3/2nnN1B1 b - - 0 1 illegal: No proof kernel
2n1b3/knn3K1/rb1b1NQ1/1r6/P1N3p1/2B1P1N1/BBRqp1p1/q1RN1B2 b - - 0 1 illegal: No proof kernel
5NrN/5RBB/b3r3/n1r1NpK1/q1pb2p1/2kP2bq/P1BN1R2/4n1QB b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Ke3 c5 Kf4 g5+ Kf5 b5 e4 b3 h4 g3 d6 Kc6+ e6 g4 e5 Kd5 h5 Kd4 h6 g2 d7 b4 e7 c4 e8B b2 d3 b3 h7 Ra6 e6 Ne7+ Kf4 f5 Be2 Nbc6 Bg6 Rg8 h8N Nb4 Bh7 Qe8 d8N Qa4 Nd2 b1R Bf3 Nec6 e7 b2 e8B Nc2 Ne6+ Kc3 Bd5 Ne1 Ngf3 g1B Ne5 Ba3 Nf8 Na5 Rh5 Rf6 Bh1 Bd4 Rh2 Bb7 Rf2 Re6 Bd7 Bd6 Be8 Nf3 Qg1 Ne1 Bec6 Bc8 Bcf3 Ba6 Bd1 Be7 Bc2 Bh4 Nfg6 Bg3+ Kg5 Rc8 Nf8 Rc5 Ndf3 Ng2 Bf4 Re1 Rc1 b1Q Nd2 Re2 Rd1 Ne1 Be3 Qb7 Rb1 Qg2 Rb7 Qh3 Rf7 Re8 Kg6 Rb8 Bh6 Re4 Bg7 Ra8 Nfd7 Rg8 Kg5 Re2 Nf8 Re3 Nef3 Re6 Ne5
1K2R2q/1B4BN/b2nq1Pn/2P4q/k1p2R1B/p4rNQ/1Rbpr3/2b1B1R1 b - - 0 1 illegal: No proof kernel
2B3N1/nR6/P2pkr2/1n3qRB/5b1R/1qppnrB1/R3bPB1/3rQNK1 b - - 0 1 illegal: No proof kernel
1Rr3N1/B3kq1P/pn2bq1b/3p1qN1/1Rn4B/1Qp5/B1rRB2P/1K3nR1 b - - 0 1 illegal: No possible last move, all moves rejected
2q1rr2/NNn1BP2/p1B1Q3/k2R3N/1qnqp2p/5PB1/1nB1K1bN/4b2R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 h5 g4 e5 b4 d5 f6 Kd7 b6 Kc6 c5 d3 f7 Kb5 b7 e4 c6 a6 c7 h3 g5 d4 g6 h2 g7 h4 Nf3 Ne7 g8N Qd5 Nbd2 Rh7 Ra5+ Kb6 b5 Qf5 Ba3 Nd7 b8N Rh8 Nc6 Ne5 Nf6 Nd5 Qb3 Nc4 Na7 Bb4 Nh5 Rf8 Qa2 Bd7 c8B Nc7 Bb7 Rae8 Bc6 Qc5 Kd1 Bh3 Nb3 d2 Bd3 Bg2 Ke2 d1N Bc2 Be1 Bb4 Qf5 Be7 Qc8 Nc5 Ndb2 Qb3 Nd6 Qe6 Ndc4 Rf1 h1Q Nh2 Qg1 f3 Qh1 Ra3 Qg1 Rd3 Ka5 b6 Qh1 b7 Qg1 Ng4 Qh2 b8B Qd6 Bb7 Qb6 Bc6 Qb4 Rd1 Bd2 Nh2 d3+ Kf2 Bc3 Rh1 d2 Ke2 Nd5 Bg3 Nc7 Rde1 d1Q+ Kf2 Qd6 Ke2 Qd4 Rd1 Be1 Rd3 Qg1 Rd5 Qd4 Nb7+
qB1N2B1/2b1p2K/6N1/Rbb1P1k1/1Bp4N/Rr1pq1P1/B4nr1/1QNn3r b - - 0 1 illegal: No proof kernel
NkrrR2N/3p4/Rq1N2P1/2b2BRQ/r5qq/BN3bPp/1KpRn3/1n6 b - - 0 1 illegal: No proof kernel
NR6/1KP4q/rnBp2R1/4k3/1rq2n2/1Pnbb1B1/p1NQp3/qNN1R2R b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 h5 Kd5 a5 c4 e5 g4 d3 f4 h3 c5 a4 b6 e4 b7 a3 c6 h4 b3 e3 c7 d6 Bg2 a2 Qd2 h2 Ne2 Nd7 Kc6 h3 b8R Ba6 g5+ Kg7 g6 Kf6 g7 Rh4 Re1 h1Q Be4 Bc4 Kb7 h2 Bc6 Ne7 g8R Nb6 Rg7 Ned5 Rg6+ Kf7 f6 Ke6 f5+ Ke5 f7 Nf4 f6 Bh6 f8N Ra6 Ne6 Qg8 f7 Qg1 f8N h1Q Qb4 d2 N6d4 d1N Nc2 Bd3 Qd2 Qc4 Bb2+ Nc3 Nc1 e2 Nd7+ Kf5 Nf6 Ke5 Nd5 Nc8 Nb6 Qhe4 Rg8 Qh7 Na8 Nb6 Rg6 Ne6 Ba3 Be3 Bc5 Nf4 Bd4+ Kf5 Bf6 Qh1 Bg5 Ke5 Bd8 Rg4 Bh4 Qhe4 Nba3 Qcd4 Rb1 Nfd5 Rd1 Nca4 Rh1 Qb2 Ra1 Nac3 Bf2 Qb4 Rb1 Rc4 Bg3+ Nf4 Ra1 Qc5 Rb1 Rb4 Ra1 Bb5 Rb1 Qa1 Nd3+ Kf5 Rbg1 Qd4 Nc1 Bd3 Nb1 Qc4 Rf1 Ke5 Re1
Kn6/2QR2RP/2B2pb1/k3NnbP/r1q1BR2/r2b3p/1pBN2rB/2b1R3 b - - 0 1 illegal: No proof kernel
1R3B2/Q2b1KPp/1bNkB1nr/qb5R/pN4r1/2br2Pn/pB2B3/2N3N1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 bxa4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 b4 a5 e4 c5 d4 a3 d6 a2 g6 c4 e5 c3 e6+ Kc6 b5+ Kd5 b6 c2 e7 a4 e8B Qe7 g7 Qe5 b7 Ra5 g3 Ke6 d7 Ne7 d8N+ Kd6 d5 Bd7 Bb2 c1B Bf7 Be3 Nc3 Nbc6 b8N Nb4 Na6 Nd3 Be6 Ng6 Nce2 Bb6 Rh5 Nf2 Nb4 Ra6 Rb1 Nh3 Ndc6 Be7 Nc1 Rd8 Qd3 Bf6 Ne7 Qe1 Qd2 Bc3 Qd4 Qd2 Be2 Qe1 Kg2 f3+ Kh2 f2 Kg2 f1B+ Kf3 f4 Kg4 f3 Kf5 f2 Kf6 Ba5 Kf7 Bc7 Qa7 Bb6 B2g4 Bfb5 Bf3 Kc5 d6+ Qe5 Bd1 f1R+ Bf3 Re1 Bfg4 Re4 Be2 Bdc6 d7 Rg4 Nbd5 Kd6 Nb4 Re8 d8B Bd7 Ned5 Qg5 Bf6 Rc8 Ne7 Rc5 Bd4 Rd5 Bf2 Rd3 Bc5+ Ke5 Nf5 Qd8 Bf8 Qg5 Ne7 Kd6 Nf3 Qe5 Ng1 Bbc6 Qb7 Be3 Bc4 Ngf4 Nc2 Qa5 Ba1 Bed4 Qa8 Kc7 Rb8 Bb5 Nb4 Rh6 Be6 Kd6 Bb2 Ng6 Qa7 Bb6 Nec6+
5n2/1r2Np2/nRq1r1pb/1BB1B2r/N1KQ1p2/1n3Pk1/r1b1RPB1/N3N3 b - - 0 1 illegal: Other
n5K1/2bPb1N1/nr3B1q/R1nkp3/bN6/2pBp1PQ/R1Nr3B/3nBN2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 b4 h3 f5 a4 b6 e6 b7 e3 b5 h2 f6 a3 b6 h4 f7 c6 Bd3 a2 Qg4 h3 Na3 Nh6 Nf3 Ra6 Nc2 Be7 f8N Nf7 Ke4 Kc5 d6 Ne5 d7 Nc4 Kf4 Qe8 d8B Kd5 Rf1 h1N Nh2 c5 Rf2 Rg8 Nf1 h2 Qh3 Qc6 Ba3 Rg5 Bb4 Ng3 Re2 h1N Rf2 Nd7 b8N Ne4 b7 Ncb6 Re2 c4 Bc3 Qa4 Nc6 Ndc5 b8B Na8 Bf6 Nhf2 Ba5 Nd1 Bd6 Rf5+ Kg4 Qa3 Bh2 e5 g3 Bd7 Ne6 Rb6 Ng7 Rf2+ Kh5 Na6 Kg6 Qd6 Kf7 Nec5 Kg8 Rg2 Bg6 Be8 d4 Rf2 Be1 c3 Rc1 a1B Bd3 Bb2 Ra1 Ba3 Ra2 Bb4 Ra5 Bd8 Bg5 Qh6 Bf6 Bc7 Rd2 Kd6 d5 Ba3 N2b4 Bd7 Ra2 Rd2 Nc2 Be8 Nd8 Ba4 Nc6 Nb7 Bb5 Kc5 d6 Kd5 d7 Be7 Bd3+ Nbc5 N6b4+
r4B1r/1k1pr2B/2rP2P1/2N2BKR/1nNNqQ1p/bnb1N2b/4p2R/5B2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 fxe4 h4 gxh4 Ke2 e5 Ke3 h5 f4 a5 d4 a4 c4 a3 g4 h3 f5 h4 d5 a2 f6 h2 c6 Qe7 d6 Kd8 g5 Qf7 c7+ Ke8 b6 Bg7 c5 Qc4 b7 Qb3+ Nc3 Qb2 f7+ Kf8 c6 Qg2 Qd4 Nf6 Nd5 Qc2 Nf3 Na6 b8N Nc5 Nd2 Nb3 Na6 Bb7 c8B Qc4 Rb1 a1B c7 Bb2 Nc5 Ba3 g6 Ba6 Bb7 Qb4 Bh3 Bf1 Bf5 Bh3 c8B Qa4 Rb2 Qc4 Rg1 h1R Rg5 Rd1 Ra2 Qc2 Bb2 Rc1 Rh5 Qb1 Nc4 Rc3+ Ke2 e3 Kf3 e2+ Nde3 e1R Bd5 e4+ Kf4 Re2 Bde6 Nd5+ Kg5 Nb4 Ba6 Rcc2 Qd2 Bc3 Ba1 Re1 Qh2 Rcc1 Qf4 Qd3 Rh2 Re2 Ng2 e3 Bb5 Qe4 Bd5 Kg7 f8N Rcc2 Nfe6+ Kg8 Nd4+ Kf8 Nc6 Ke8 Nd4 Kd8 Bg8 Kc8 Bh7 Rc1 Nb2 Ree1 Bf1 Re2 Nce6 Kb7 Nc4 Ra2 Bb2 e2 Ba1 Rae8 Nge3 Re7 Nc6 Be1 Bg7 Bd2 Ncd4 Rcc2 Ne5 Rc6 N5c4 Bc3 Bh6 Bab2 Bg7 Raa8 Bf8 Ba3 Nc5+
2B2N1b/p2p1q1n/BPQ1NNn1/1R1r1kn1/3R1p2/B3P3/bK2Bb1N/4r1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 b4 Ke6 c4 f5 Kc2 g5 h4 g3 c5 d3+ Kb2 g2 b6 g4 c6 g3 b7 d2 b5 f4 h5 Rh6 c7 Ne7 b6 Rh8 e3 Kf5 h6 Bg7 h7 Bf6 Qa4 Qe8 Ba6 Nbc6 b8N Qf7 Nc3 Nd8 e6 Bb7 c8B Ng6 e7 Ne6 e8B Bd5 Nf3 g1B Qc6 g2 Ra5 Nef8 Nh2 Bf2 Rd1 g1B Rb5 Rg8 h8N Nh7 Rb4 Ba2 Rb5+ Ne5 Ng6 Bh8 Nf8 Rg5 Nd5 Ng6+ Qc3 Rh5 Nc6 Rb8 Nd8 Rg5 Bcb7 Rc8 Nde6 Rc5 Nf6 Rd5 Bc8 Rg4 Re1 Rh4 Qc6 d1N+ Ka3 Nc3 Rd1 Rh5 Kb2 Ne4 Rd4 Rh3 Kc2 Neg5 Ba3 Rf3 Kc3 Bg3 Kb2 Rf1 Qc3 B3f2 Qc6 Qe7 Bf7 Re1 Be8 Nh4 Bh5 Ng6 Bf3 Qf7 Be2
2N4B/1RB1nqB1/6p1/1QbN1rP1/b2NP1rp/B2pNk2/2nK1b2/q1Rb4 b - - 0 1 illegal: No proof kernel
6N1/1B5B/NR1Bp1pn/2qb2r1/q1PqP2B/b2pnkR1/2N4K/rqQ2N2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 Bb7 Ra5 Ba6 Ra1 Bc8 f5 Qb6 f6 Qd8 g4 Ba6 g5 Bc8 g6 hxg6 fxg7 Ba6 Be3 Bb7 Bc1 Bc8 Kf2 f5 Kg2 Kf7 c4 Kf6 h4 Ke5 b4 Ke4 b6 a5 b5 d5 h5 d3 h6 f4 b7 e6 b6 d4 h7 d2 Rh3 a4 Nf3 a3 Ne1 d3 Nc2 a2 Kh2 f3 Bg2 Na6 b8B Qg5 b7 Qc5 Rg3 Nh6 g8B Nb4 Bd6 Nd5 b8N Bb7 Na6 Ne3 Qe1 d1Q Nd2+ Kf5 Bh1 f2 Nf1 Bd5 Rb1 a1Q Rb6 Qad4 Ba3 Q1a1 Qc1 Be7 Bb4 Qa4 Be1 Ra7 Bf7 Rd8 h8N Raa8 Bg8 Rdc8 Nd2 f1Q Nf7 Bf8 Bh7 Rc6 Rf3+ Kg4 Bh4 Qe1 Nf1 Rcc8 Qd2 Qb1 Qc1 Be7 Nd8 Ra7 Nc6 Rf8 Rh3 Rf5 Rf3 Bf8 Ne7 Rg5 Ng8 Qc7 Bf4 Ba3 Bd6 Qcc5 Rg3+ Kh5 Na1 Nc2 e4 Qd7 Nb8 Bb2 Bg2 Ra3 Na6 Ne3 Bf3+ Rg4 Nc2 Ra1 Bd1 Ba3 Ne1 Qe8 Ba4 Rg5 Nc2 Qec6 Rh3 Kg4 Bb5 Qd7 Bc6 Qe8 Bb7 Qa4 Ng3 Kf3 Nf1+ Ke2 Rg3 Kf2 Rg4+ Kf3 Rg3+
b2RnNK1/B7/3P1pk1/B2rr1N1/pBBR2rq/3P1NQp/1q2rbN1/7n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 Ke5 c4 g4 c3 e4 f3 b4 c2 g5 a4 g6 f2 g7 h3 b6 h4 d6 h2 b5 h3 b7 Be6 b6 Bg4 Bc4 f1R Nc3 Qc8 Qe1 Rf3 Nd5 Nh6 g8N Bf5 Kf6 Be6+ Nf4 Bf5 e5 Ra3 Ng2 Ra5 Ne7 Re3 Nf3 Be4 Ba3 c1Q Ng6 Na6 b8B Rd5 b7 Qb2 Ba7 Re2 b8B Qg4 Bc7 Nf5 Bb4 Rh4 Rd1 Ng3 Bca5 Nc7 Qg1 Bh6 Nf8 Be3 Qf2 Qf4+ Kg7 f6 Kg8 Qh6 Rhf1 Nh1 Qg3 Bf2 e6 Rhh5 e7 Rhe5 d3 Qh4 Rde1 Rb5 Rg1 Ba8 Rc1 Rbd5 Rge1 Rd2 Re4 Re2 Rd4 Qg5+ Kh8 Kf7 e8N Qg4 Ng7 Ne8 Nge6 Qh5+ Nh7 Qh4 Neg5+ Kg6 Kg8 R5e4 Qe5 Rg4 Rb1 Ng3 Qe3 h1R Qf4 Rhe1 Nf8+ Kh5 Rc1 Nh1 Qg3 Ree5 Bb3 R1e3 Rc8 Re2 Rd8 Kh6 Bc4 Kh5 Nd7 Kg6 Nf8+
2n2r2/p1B3nn/PBp1P1qN/pN1Q3B/3q1NR1/b2BR1N1/2k1K1b1/q3b3 b - - 0 1 illegal: No proof kernel
3B2BR/qPbR4/3kn3/1rr3p1/3nBrN1/3QK3/Rppn2P1/r1NrB2R b - - 0 1 illegal: No proof kernel
1qR1NK1B/3NN1P1/1qp1r3/1B1rRBrn/k2nBbQ1/1N2p3/4P1pr/1n6 b - - 0 1 legal: proof: c4 d5 g4 dxc4 b4 a5 bxa5 f5 h3 fxg4 Nc3 g3 Nb1 g2 Qb3 g5 Qd1 g4 Ba3 g3 Bc1 Bg4 hxg4 Qc8 Rh3 Qd7 Rh1 Qd8 d4 Kd7 Kd2 Kc6 Kc3 Kb5 f4 h5 a4+ Ka6 Kb4 b5 Kc5 h4 f5 c3 d5 e5+ d6 h3 f6 e4 g5 c2 f7 b4 g6 h2 Na3 e3 Nb5 b3 Nf3 g1Q Nd2 b2 Nb3 b1R Qd4 Nf6 Bh3 g2 Bb2 c1N Qg4 Bg7 f8N Nh7 d7 Qf6 d8N Qff2 Nc6 Be5 Ne7 Qf6 Nd7 Re8 Nd6 Nc6 Kd5 Qf8 Ke6 Bf4 Bh8 Rad8 g7 Nf6 Ra2 Qe1 Rc2 Qb4 Rc5 Qb5 Re5 Na2 Rc1 h1R Rc2 Qb6 Rc4 Ka7 a6 Nc3 a5 Rh2 Rcc5 Nh5 Rc4 Ka8 a7 Rd1 Rcc5 Rd5 Rc4 Rb8 Rc5 Nb1 Rc2 Rec8 Ne8 Kb7 a8B+ Ka6 Rc4 Kb5 a6 Rd8 a7 Rdc8 Rc5+ Ka4 Bb7 Rd8 Ba6 Rb7 a8B Ra7 Bd3 Ra5 Bb7 Rc8 Bba6 Ra8 Bac4 R8a6 Be4 Rb5 Nef6 Qc8 Kf7 Nd4 Ne8 Qcb8 Kf8 Rba5 Re6 Rg5 Ree5 Rb5 Rc6 Rd5 Bcd3 Q6a7 Rc1 Re6 Rc2 Qab6 Bb5+ Kb4 Ra2 c6 Ra8 Q8b7 Rc8 Qb8 Qg3 Ka3 Bhf5 Kb4 Qg4 Ka3 Bbd3 Ka4 Bb5+
R1rR4/2Q1prB1/nBpbq1q1/N3P1nB/RP2r1nN/1B1pk3/6K1/1nR5 b - - 0 1 illegal: No proof kernel
2b1NQ2/B1kR3b/r1p1rq2/4pBb1/4R1NP/RK1BP1n1/1p1rqRrB/8 b - - 0 1 illegal: No possible last move
qR1n4/Q1NbbppB/rn4BR/1N1P2B1/1bp3q1/5nkB/1R2b1P1/1KR5 b - - 0 1 illegal: No proof kernel
1QBn2K1/5rN1/1RN3pp/Rb1Bbq2/1p5r/1P1rBN2/N1BrbP2/2b1k3 b - - 0 1 illegal: No proof kernel
1r1RB3/1rp4Q/5NpN/P1pK2n1/5rPB/4Bk1q/nNb3rn/1RNB1n2 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 d6 c4 g6 b4 axb4 c5 dxc5 h5 Nc6 h6 Bg7 hxg7 Nb8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 a4 e5 g4 b5 f6 h5 f7 b3 f8N h4 a5 h3 f3 b4 Bg2 b2 Na3 b1R Nd7 b3 Kd5 Kf4 Nc4 h2 Nb2 e4 d4+ e3 Bf1 Qh4 Be2 Qh6 Nf6 Bf5 Ra4 Kg3 f4 Bc2 f5 Qh3 Bb5 e2 Be3 e1N Ne2+ Kg2 Be8 Nh6 g8B Nf3 Qd3 Ra1 Rb1 h1N Rb4 Nc6 Rb8 Rh7 Rd8 Ra2 Qe4 Ra7 Qe7 Ng3 Qg7 Rh8 Qh7 Nf1 Be6 Nf7 B6d7 Nb8 Ba4 N7g5 Ng8 Nc6 f6 Rb7 f7 Rb4 f8N N3h2 Nh6 Kf3 Nd7 Rf8 Nf6 Rb7 Kc4 Rf7 d5 Nb4 d6 Rf8 d7 Rf7 Nd1 b2 Bb3 Nd3 Kd5 Nc1 Ra1 b1R Nb2 Bd3 Bd1 Bc2 Nc4 R1b6 Nb2 Rb8 Rb1 R6b7 Nfg8 Rf4 Nf6 Raa4 Rc8 Na2 d8B Kg2 Be7 Rf2 Rd8 Kf3 Bd6 Rc4 Bg3 Rg2 Bh4 Rf4 Nc1+
1Brb1R1K/1Q1Bbprp/NPB2P1k/N6r/5n2/n2p3q/2N1Np2/b1B1R3 b - - 0 1 illegal: No proof kernel
b3N3/4Rrkn/2Bnq3/R2p1q2/P2R2pp/2KP2Nr/pN1n2B1/bN3R1Q b - - 0 1 illegal: No proof kernel
r6Q/r5RN/R3nPqp/K1RB2n1/Np1p3B/P1R2bp1/2Bkr1qB/6b1 b - - 0 1 illegal: No proof kernel
1N6/2r1Q2q/P2n2BR/BPRN4/3p1KN1/1b3pp1/qBpB2N1/3krnbr b - - 0 1 illegal: No proof kernel
1BR2K2/2b2n1B/pNqN2pp/1N1R2q1/6P1/1PBNp3/q3r2k/bQn1B2r b - - 0 1 illegal: No extended proof kernel
1KRQq3/1B1q1Nrp/5k2/2R2q1p/1Nb2nrP/2Rp2B1/1Pp4n/Rb4NN b - - 0 1 illegal: No proof kernel
BQ2N2r/b1pbnq1p/1BPq3N/8/BrNpp2R/1NR2n2/5nP1/1K2B1k1 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 Kf7 c4 Kg6 Kc2 Kf5 b4 a5 f4 d5 b6 a4 b5 h3 b7 d4 e6 h2 b6 a3 c5 a2 e7 Ra5 e8B Ra7 Ba6 Bg7 Nf3 Kg4 f5 Kg3 f6 Kf2 f7 Ra8 f8B Ra7 Nbd2 Nf6 Nc4 Qd5 Ba4 Qd8 c6 Bg4 Nfe5 Qd7 Bc5 Nh5 Bd2 Qe7 Rc1 a1Q Nf7 Qe6 Nh6 Nd7 b8N Nf4 b7 Ng6 Bb6 Qa3 Kb1 Ne7 Qb3 Bf8 Rc3 Ne5 Nd7 Qf7 b8N Rb7 Nc5 Nf3 Nbd7 Bh3 Nf6 Bd7 Qb2 Rb8 Nb3 Qd6 Ne8 Rb7 Rd1 h1N Be1+ Kg1 Rdd3 Rb8 Bb7 Nf2 Ba8 Rb7 Ba7 Rb4 Bb6 Ne5 Rh3 Nf3 Rh2 Qc5 Ba7 Ng6 Qa1 Rb8 Rh4 Qb4 Qa3 Bc5 Qb2 Ne7 Nc1 Bb6 Qb3 Qd6 Qb2 Bc5 Qb7 Bb6 Nb3 Bc5 Qc8 Rb4 Qb8 Qdf6 Bb6 Qd6 Ba5 Ba7 Bb6
1N3n2/BPN1nq1b/6p1/pPq3N1/Bp1B2b1/1p1KQ1R1/1kr5/2rRbN1B b - - 0 1 illegal: No possible last move, all moves rejected
1R1rB1K1/1pbPNB2/p2kq1Br/NNp5/Q1Pr1n2/2q3Bp/6b1/1R1N3n b - - 0 1 illegal: No proof kernel
1n1RR1q1/2bR1B1P/1b4Qp/p1R4n/1N2KN2/kB1p3n/P2p1B1r/qB1b4 b - - 0 1 illegal: No proof kernel
1R1q1n2/2R2p2/N2R3b/1R1pBpn1/3Kb1b1/B1pP3Q/Pb1k2Br/2B1N2b b - - 0 1 illegal: No possible last move
K1nN1QqR/B1P5/1Nn4n/2k2pp1/5B2/R1bR1bPB/p1p3n1/1bR2r1B b - - 0 1 illegal: No proof kernel
Rn1q1NB1/3np3/rp4R1/B2NQn2/p1n3B1/N2K3p/1bP1N2P/k1qb2B1 b - - 0 1 legal: proof: e4 d5 a4 dxe4 b4 f5 g4 fxg4 a5 c5 bxc5 b6 a6 Nc6 Qe2 Rb8 Qf3 Rb7 axb7 a5 Qd1 Nb8 Ke2 Kd7 d4 Ke6 f4 Kd5 c6 Kc4 d5 h5 f5 g5 f6 h4 d6 g3 d7 e3 f7 g2 c7 g4 Qe1 g3 Ba3 h3 Nc3 Bg7 f8N Nh6 Bd6 Nf5 Nb5 Bb2 Na3+ Kd4 Ra2 Rh5 Qa1 Kc3 Bc5 Rh8 Ne6 Rh4 Nf8 Ra4 Bd4+ Kb4 Kd3 e2 Bf2 e1Q Ne2 g1N Bg2 Nf3 Rg1 Nd2 Bd5 g2 Bg8 Qc1 Bd4 Qe8 d8N Nc4 Nde6 Qd8 N6f4 Be6 c8B Bd7 Re1 g1N Be3 Nf3 Rg1 Bc6+ Bd7 Bd5 Rg6 Bf7 Bg1 Nfe5+ Ke4 Be8 Bc8 Ned7 Kd3 Na6 b8B Bf7 Rc6 Bh5 Be5 Nab8 Rg6 Nf6+ Nd4 Bd1 Bce6 Nfd7 Nde2 Nh4 Bg4 Nf5 Nb5 Ba3 Qd4 Bb2 Ra1 Ra2 Nd5+ Ka4 Qe4 Ra3+ Bc3 Ra2 Nbd4 Ka3 Qe5 Na6 Bd2 Nab8 Rb1 Ra1 Nb5+ Ka2 Bb4 Bc3 Rb3 Bb2 Bd2 Kb1 Rb4 Ra4 Na3+ Ka1 Rb5 Rb4 Be1 a4 Ra5 Rb5 Ra8 Ra5 Bc3 Ra6 Ba5
NRb3q1/3p3q/RNb2r2/3pB2N/Bp3NbR/pQbP2K1/3rR2P/n2k4 b - - 0 1 illegal: No possible last move, all moves rejected
KnNNR2B/2BQ1P1R/2Rpp3/3rr3/BqP1p3/2bn1Bk1/3pR2p/1bb5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 h5 b4 a5 b6 a4 b7 a3 f5+ Ke5 f6 Kf4 g6 a2 g7 d3 Kc3+ Kg3 Kc4 h4 Kc5 h3 b5 Ra7 b6 Rh6 g5 Rh5 Nd2 Rh6 g6 Ra6 Bb2 Kh4 Be2 Rh7 Nc4 Nh6 g8R Kg3 g7 Qe8 Bf3 Nf5 Ne2+ Kh4 Nd4 Rh8 Nd6 Ra4 Rc1 a1B Nc6 Nd4 Nd8 Kg3 Re1 h2 Re2 Rh4 Rh8 Ndc6 g8B Ne5 Bb3 e6 f7 Qe7 Rh7 Rd4 Ba4 Rh5 c3 Bh6 Qd2 Nbc6 b8B Ba6 b7 Rd5+ Kb6 Bg5 Bc7 Nb8 Nc8 Qb4+ Ka7 d6 Ka8 Bc4 Qe3 Ba2 Qa7 Bb1 Rcc2 d2 Rc1 Nd3 Rc2 Bf6 Rc1 Na6 b8R Rhe5 Qb7 Bg7 Qc6 Bf6 Qd7 Bh8 Rb6 Bg7 Rc6 Nb8 c4 Bf6 Bd4 Bb2 Rg1+ Kf4 Rg8 Bc1 Rgh8 Kg3 Re8 Rg5 Be3 Bc3 Bd4 Rgf5 Bf6 Rfe5 Bh8
n4R2/2qNp1b1/P1Np3B/nRR1r3/1q1bR3/Bpp1P3/B1B1p1Q1/K4kr1 b - - 0 1 illegal: No possible last move
BRQb1r1n/p1P2N1N/KnR3p1/R5qp/B2rb2R/3p2q1/1B4pP/4k1B1 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 g4 fxg4 a4 e5 axb5 exd4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 f4+ Ke4 c6 h5 b6 d5+ Kb5 g3 c4 g6 b7 d3 f5 d2 c5 Ke3 f6 Kf2 e4 d4 e5 d3 e6 Bd7 f7 Qe8 e7 Bg7 f8B Qc8 e8B Ne7 Ra4 Rh7 Nc3 Bh6 Qc2 Rh8 Bb2 Rh7 Ne4+ Ke1 Nh3 d1Q Neg5 Rh8 Nh7 Qd8 Rh4 Ng8 N3g5 Qf3 Nf7 Bf5 c7 Qg5 c8R Nd7 b8R Nb6 c6 Be4+ Ka6 g2 Bc5 Bg7 Bg1 Bf6 Be2 Qfg3 Bf3 Nh6 Qc4 Rf8 Rc7 Nc8 Qe6 Nb6 Qc8 Be7 Ne5 Nf7 Qg4 Nh8 Rd8 Ba3 Bc5+ Kd2 Nf7 Qf5 Ra1 Bd5 Bg1 Be7 Ra5 Qg5 Rcc8 Ke1 c7 Be6 Rd6 Bf5 Ba4 Bf6 Bb7 Be4 Rc6 Be7 Re8 Rd8 Ba8 Rd4 Rb8 Bd8 Qc8
2R3b1/2n2krp/3pN1p1/R2q4/3BPb2/2RR1BPQ/2pbpNKB/1q1Br3 b - - 0 1 illegal: No proof kernel
1bb3rB/qB2p1Bq/1b2PbpR/2Bnk3/1nR3b1/NKR3P1/1R1Qr3/N6r b - - 0 1 illegal: No proof kernel
5KRn/qr4B1/2Q1p3/pB1rNnn1/Pn2b1Bb/4q1bN/R3P1N1/2k2nBN b - - 0 1 illegal: No proof kernel
B3b1bN/r2nR1p1/RN1K3b/3b3Q/2r2nNB/p1R3Rp/P2kq1qP/4N1r1 b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 f5 Be3 fxg4 Bh6 Be7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 e4 d5+ Kb5 a5 c4 h5 f3 g3 c6 d3 c5 Kd4 c7 h4 c6 h3 e5 d2 f4 Ke3 e6 d4 f5 d3 e7 a4 Kc5 b5 f6 a3 f7 b4 Qh5 g2 Qg6 b3 Nc3 b2 Na4 b1B Nf3 Be6 c8R Ra7 c7 Nf6 Rg1 Rh4 Qh5 Nd5 Bb2 d1Q Bf6 Re4 Bh4 d2 Bb5 Bd3 Bc6 Bc4 Ba8 Qe1 Rb1 d1B Rb7 Qf2 Ne1 Qe8 Rb6 Qf3 Nc3 Ba4 Ra6 Rg4 Ne4 Ke2 Rf1 g1R Nf6 Qg2 Rf3 Bcb3 Rg3 Qb5+ Kd6 Kd1 Ke5 Qbe2+ Ne4 Rf4 e8R Bc5 f8N Bg8 Re7 Be3 Ng6 Be8 Nh8 Nd7+ Kd6 Bc4 Nf6 Kd2 Ng4 Rd4 Rb8 Bh6 c8N Re4 Rbb6 Nf4 Rbb3 Bcd5 Rbc3 Rc4 Nb6
q1B1nrqN/1p2KN2/1P4B1/1b2nB2/q2B2Q1/pNR1p1R1/P2n2N1/k1b1rq2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 h5 g4 a5 b4 d5 c4 h3 f6 h2 f7 h4 f3 h3 g5 a4 b5 a3 g6 d3 g7 d2 b6 d4 Bd3 Nf6 g8B Bd7 Bb2 Bh6 f8N Nc6 Bgh7 Ne8 Ne6 Rf8 Nf4 e6 Qa4 d1N Ng2 Nf2 Bdf5 Bc1 Nd2 Rc8 Nb3 Ne4+ Kb5 Ra8 c5 Nd2 f4+ Kd5 Nf3 e5 Bc3 e4 Rg1 h1Q Bhg6 h2 Ne5 d3 Nf7 Ne5+ c6 e3 Kb4 Rc8 c7 Bb5 Bd4 Qg5 Rb1 Rd8 c8B Qg4 Bh7 Qg8 Bhg6 Rd7 Rb2 Rd6 Rc2 Rd8 Rd1 Qf1 Rc3 h1Q Re1 Qhh7 Re2 Qh6 Rf2 Rd6 Rf3 Qhh8 Rg3 Rf6 Bh3 Rf5 Bg4 Rh5 f5 Ke4 Kc5 Rh2 Ne1 Re2 Ng2 Re1 Bh3 Ndf3 Qc4 d2 Qb4 d1Q Bg4 Ng7 Kd6 Nd2 Ke7 Ne8 f6+ Kd5 B4f5 Qc2 Na1 Qa4 Nb3 Qa8 Bc5 Qh4 Qf4 Qg4 Bd4 Qd1 Qg4 Qc2 Rd3 Qc4 Rc3 Qca4 Rd3 Kc4 Rc3+ Kb4 Rc2 Qh8 Nd8 Rg8 f7 Qg7 Bh5 Qh8 f8N Qh7+ Bf7 Rh8 Ng6 Rf8 Rc6 Qg7 Nh8 Qg8 Bc5+ Kc3 B7g6 Kb2 Ndf7 Nd3 Bd4+ Kb1 Rc2 Ne5 Rc3+ Kb2 Nc5 Ka1 Nb3+
6r1/Rr2q1qp/3B1R1n/N2pbb2/pn3N1q/Pk1Pr3/1N3Rq1/K1QNR2B b - - 0 1 legal: proof: f4 e5 h4 exf4 b4 c5 bxc5 g5 Ba3 gxh4 Bb2 Qb6 Bc1 Qd8 e4 Ke7 c4 Ke6 g4 d5 c6 f5 e5 b5 d3 a5 Kd2 f3 Kc2 b4 Kb2 h3 c5 f4 c7 h2 c6 f2 g5 b3 g6 f3 g7 Qe7 Nc3 Qb4 Nh3 Qc4 Bf4 Qd4 Qc1 Bd6 Bg2 Na6 Re1 f1Q Bh1 Nh6 g8N f2 Ne7 Qg2 a3 a4 Ra2 f1Q+ Ka1 Qg7 Rf2 Qe4 Nd1 Qfg2 Ref1 Bd7 c8N Rg8 c7 Nb4 Nb6 Rae8 c8R Qe2 Rc7 b2+ Kb1 Bc8 Nc6 Kf5 e6 Be5 e7 Kf6 Nd4 Bf5 Nc6 Ke6 Rb7 Kd6 Nc4+ Kc5 N6a5 Kd4 Ra7 Qee4 Bg5 Qh4 Nf4 Qe4 Bg2 h1Q Bf6 Q1h2 Bh1 Qhg2 Re1 Nc6 Ka2 b1R Rf1 Rb3 Ka1 Rb7 Ncb2 Nb4 Bg5 Reb8 e8R Qe1 Rf8 Re8 Be7 Qee4 Bd6 Qe1 Ne3 Qe2 Qb1 Kc3 Rf6 Ree7 Re1 Re6 Nac4 Kb3 Nd1 Qe3 Qc1 Qc5 Bc7 Qce7 Bb8 Bd4 Bc7 Re3 Bd6 Be5 Na5+
B2R2K1/b3R2n/p1bqN1Qp/2B1qB1R/5p2/2bNnBn1/P1n2P2/r3R1kr b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 b5 d4 e5+ Kh5 f5 g4 f4 c6 a6 c7 e3 c4+ Ke4 c5 b4 c6 h3 g5 e2 d5 e1Q d6 h2 d7 b3 g6 b2 g7 Nf6+ Kh6 Bb7 c8R Nd5 c7 Bc6 Qh5 Ne3 Be2 Bc5 g8B Ba7 Na3 b1N Nc4 Na3 Kg7 Nac2 Nf3 Qe7+ Qf7 Qd6 d8R Nd7 Nb2 Nf8 Nd3 Rb8 Nd4 Rb1 Ne6 Qc3 Re1 h1N Ba3 Ng3 Bc5 Rd1 Bg4 Rc1 Bf5+ Kf3 Re2 Kg2 Qg6 e4+ Kf7 Rh1 Rae1 Qce5 Ra8 Kh2 c8B h6 Bb7 Nh7 Rb1 Kg2 Rb5 Kg1 Rd7 Nd1 Rad8 e3 Rd2 e2 Ba8 e1B Re2 Nde3 Re7 Nf6 Bh7 Re8 Bg4 Bc3 Bh5 Nd7 Bf3 Nf8 Ra5 Bb6 Kg8 Ba7 Rdd7 Rc8 Rd8 Rc7 Qg4 Rc8 Bf5 Nh7 Qg6 Rb8 Rb5 Rb6 Ra5 Rb1 Bb4 Na3 B5g4 Qe4 Rh5 Ra1 Bc5 Qee5 Bf5 Nac2 Re1+
1R1nkR1r/1pnrN1K1/4q3/1n2BpB1/B5b1/b2N1PN1/1PQ1p3/1nr1rB1N b - - 0 1 illegal: No proof kernel
2K1n1Rr/1R1Rbp1B/2k1pP1p/2rbp3/2r2QBq/nb1NP3/1N3B2/R4n1B b - - 0 1 illegal: No proof kernel
r2Q2rr/1kp5/R1Bq4/n1P1b1q1/2q1p1B1/Nn1p1RBp/2NPN1NK/5B1b b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b3 a5 b4 axb4 a4 d5 g4 Kd7 f4 Kc6 Kf2 h5 Kg2 b5 c4 e5 g5 d4 c5 d3 g6 e4 a5 b3 f6 b2 g7 b4 f5 b3 f7 h3+ Kh2 h4 f6 Bg4 a6 Bc8 a7 Kb7 Ne2 Ne7 g8B Nec6 Ra6 Na5 Qe1 Nbc6 Na3 b1Q Bb2 Qd6+ Be5 b2 Bg3 Bg7 f8N Bg4 f7 Be5 Ng6 Bf3 f8N Nd4 Be6 Qc2 Bg4 b1R Ne6 Qc4 Ngf4 Ndb3 N6d4 Rag8 Rg1 Ra1 Ndc2 Bh1 Rg2 Ra2 Rf2 Ra1 Ng2 Ra2 Kg1 Ra1 Rf3 h2+ Kf2 h3 a8B+ Kb8 Bc6 Ra2 Ba4 Kb7 Qb1 Ra1 Bad7 Ra2 Bc6+ Kb8 Nge1 Qd7 Bh5 Nb7 Rb6 Nc1 Bh4 Bg2 Nb5 Ra8 Ra6 h1Q Nba3 Kc8 Qa1 Nb3 Qd4 N7a5 Qd5 Qh2 Qd6 Qf4 Kg1 Qf6 Bg4 Bh1 Ng2 Qg5 Bg3 Kb8 Qf6 Qde6 Kh2 Qd6 Ba4 Kb7 Qd8 Bg7 Bad7 Be5 Bc6+
3r1q1n/3R1p2/1nB1pp1N/RQrbP3/q2N1N1b/2BnR1pK/5kP1/RN3n2 b - - 0 1 illegal: No proof kernel
B1Q5/2nrrq1q/1KP1b3/n3R2N/1P1N2R1/n1n1R2Q/b1N3Nk/4N3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 axb5 f5 exf5 Ba6 Ne2 Bb7 Ng1 Bc8 gxh5 a5 c4 a4 b4 a3 Bxa3 e6 Bb2 Bd6 Bc3 dxc3 Qxd6 Bb7 Qd1 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 Kf4 h4 d5 b6 g5 b7 d4 f6 c2 h6 c1Q h7 d3 f7 e5 f8R+ Nf6 h5 d2 h6 e4 Nf3 g4 Rh4 e3 Na3 e2 Ne1 Qe7+ Kb6 Be6 c5 Qc2 Bg2 Ra4 Re8 Qa2 Nac2 Qb3 Ra3 Rf8 h8Q Qd3 h7 Nc6 b8N Na5 Ba8 Rf7 c6 Qg6 f3 Kg3 f4+ Qd3 Nd7 Nd5+ Ka7 Qf6 f5 Nc7 Kb6 Re7 Qf8 Qg7 h8N Qf7 f6 Ba2 Rc3 Ra3 Rc5 Qdh7 Re5 Rd3 Ng6 Be6 Nf4 Rd5 Nf3 e1N Ng2 Rd3 Qe2 d1B Re3 Rd2 Qa6 Be2 Qc8 B2c4 Re5 Ba2 Re3 Qfg6 f7 Rd4 Nf6 Rdd7 Qg7 Qgh5 f8N Q5g6 Qf7 Qgh5 Na1 Nc2 Re5 Q5f5 Nfe1 Na3 Qh5 Qf7 Nac2 Q5h7 Re3+ Kf2 Re5 g3 Qf3+ Kg1 Rg4 Kh1 Nh5 Kh2 Nh4 g2 Re3 g1N Nhg2 Bec4 Ne6 Ne2 Ned4 Nc3 Re5 Re6 Re3 Re4 Re5 Bcb3 Reg5 Ree7 Rge5 Be6 Qh3+
NB1r1rQK/1R6/bQQrRN2/n1p5/1qqQb1N1/Q4n2/1n1P3P/2k5 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 d5 a4 a5 bxa5 h5 c4 e6 cxd5 Rh7 g4 hxg4 a6 Nh6 a7 Bc5 a5 Bb6 axb6 Ng8 Bh3 Rxh3 b7 Rh8 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Ke4 c5 f4 e5 d6 g3 d7 g2 Qf1 g4 Ra4 g3 Nc3 b4 Qe2 b3 Qf3 b2 Ra6+ Qb6 d8Q+ Ne7 Nh3 g1R Nf2 g2 Qd4 Nbc6 b8Q Qb4 Qb6 b1B+ Qd3 Qc4 Bb2 Rd8 Ba1 Rb8 a8N Ng6 Ra7 Rf8 Rb7 Nh4 Bb2 Bc2 Ba1 Rb1 Re1 g1Q Re3 Qg7 Re1 Nf3 Re3 Qgf7 Nd5+ Kg7 f6+ Kg6 Ng4 Na5 Qc6 Rb6 f5+ Kg5 Bc3 Qb4 Re1 Qe6 f7 Rd8 Ndf6 Qec4 f8Q Ra6 Qd7 Rd6 Qg8+ Kh4 Re2 Kh3 Re1 Kg2 Qc6 Rf8 Re2+ Kf1 Qb6 Bb1 Qd5 Rfd8 Qdc6 Rf8 Nd7 Bc2 f6 Bb1 Kf5 e4 Kg6 e3 Kg7 Rd8 Qf5 Be4 f7 Rf8 Ndf6 Rfd8 Rd7 Ba6 f8Q Rbc8 Qf7 Rf8 Qg8 Rcd8 Rf2+ Ke1 Kh8 Kd1 Re2 Kc1 Rb7 Bd5 Qfd3 Be4 Rf2 e2 Q3e3 e1N Re2 Kd1 Bb2 Kc2 Qa3 Nd3 Bc3 Nb2 Re1 Bh7 Re6 Kc1 Qe3 Rc8 Be5 Rcd8 Qd4 Be4 Bf4 R6d7 Bc7 Rd6 Bb8
1n4BB/1b2Pb1Q/1n4P1/1R3RB1/4qn2/Nq4qQ/2rpkBB1/2rQ2K1 b - - 0 1 illegal: No possible last move
1R2B3/npQ1P1n1/5Nr1/R3NNb1/1b1Kn1qP/r5NR/bkN5/2b3Q1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 fxe5 Bc5 Nc3 Be7 Nb1 Bf8 d4 h5 a4 c5 dxc5 h4 Ba3 h3 gxh3 bxa3 h4 Qd7 h5 Qd8 Kd2 Ke7 Kc3 f5 h4 g5 e4 a2 a5 f4 h6 f3 e6 Kf6 h7 Ke5 e7 g4 e8N f2 c6 g3 a6 g2 d6 Nd7 c7 Ndf6 d7 Ne7 a7 Nc6 Ne2 g1B Rh3 Rg8 h8N Rg6 Ng3 Nh5 Nf6 Ng7 Bb5 f1N Na3 Nd2 Nc2 Be3 Qg1 Bb4+ Kd3 Qe7 d8Q Be6 c8N Qd7+ Nd6 Bg5 Qc7 Bb3 Ba4 Qg4 Bb5 Re8 a8R Na7 Rb8 Bg8 Rf1 a1B Bc6 Bd4 Ra1 Bb2 Ra5+ Bd5 Ba4 Bc1 Bb5 Ba2 Ndf5+ Ke6 e5 Ne4 Nf7 Rc8 Nh7 Kd5 e6 Rd8 e7 Rdd6 Ne5 Rc6 Nf3 Rc3+ Ke2 Ra3 Be8+ Nc5 Kf2 Kc4 Nf6 Kb3 Ke2 Ne4 Kd3 Kb2+ Kd4 Bbd2 Ne5 Be1 Qf1 Bb4 Qg1
R1R3K1/1Bn2pb1/q5rP/k3r2R/3Q1qN1/1q1Q1Pq1/nQ4R1/1b3R1B b - - 0 1 legal: proof: d4 c5 a4 a5 g4 b5 axb5 e5 dxe5 h5 gxh5 a4 b4 a3 Bg5 Qxg5 bxc5 Qd8 Nc3 Bb7 Nd5 Ba6 Nb6 Bb7 Nc8 Bxc8 Kd2 g5 Kd3 d5 Kd4 Kd7 h4 Kc7 c4 a2 e4 g4 c6 Kb6 e6 g3 Ke5 g2 f3 d4 c5+ Ka5 c7 d3 b6 d2 h6 Nf6 h5 Nh7 e7 Ng5 Kf6 Bh3 c8R Na6 e5 Nc7 c6 Bd7 h7 Na6 e6 Qe8 h6 Nc5 b7 Nh3 b8Q Nd3 c7 Rg8 h8Q Nc1 Qb2 Ng5 Rh5 Ra6 Nh3 g1Q Nf2 Qg3 Bg2 Ra8 Qe2 d1Q Qd3 Qb3 Ng4 Ba4 Rb1 a1Q Bh1 Na2 Rf1 Qd7 e8B Qdd6 Bc6 Qc1 Be4 Qa6 Bb7 Bg7+ Ke7 Ra7 Ra8 Qcf4 c8R Bc6 Qbd4 Be4 Rc2 Bf5 Rg2 Be4 Q3e3 Bb1 Qed3 Be5 Rc8 Rg6 Kf8 Bg7+ Kg8 Ra8 e7 Ra7 Rh4 Ne6 e8R Nc7 Rhh2 Rg5 Rh5 Re5 Be4 Rb7 Bd5 Rb6 Bb7 Bf8 Qf6 Bg7 Ra8 Rd6 Rec8 Re6 Qb2 Rd6 Qd8 Rg6 Q8d4
2r1k1K1/Q2p2Q1/3R2Q1/1Nq4Q/1P6/Br4qQ/RbPqn2B/2qnb2B b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Kf7 f6 Ke6 g4 Kd5 f7 Kd6 f4 h6 f5 Nc6 Nd2 Ke5 Ne4 Nb8 Ng5 hxg5 Kf2 Kd6 Ke1 Bb7 f6 Be4 Bd3 Bg6 Bf1 Bf5 gxf5 g4 Kd2 a5 Kd3 e5 Kc4 g5 h4 a4 b4 e4 h5 d3 h6 d2 b6 e3 b7 g3 h7 g2 Bd3 g4 Ne2 g1Q Nd4 g3 Ba3 e2 Be4 e1B Qh5 d1Q Ra2 Bg7 f8B+ Ne7 f7 g2 f6 Nc6 b8Q+ Qc7 Qa7 Qd2 Nb5+ Ke6 Bf3 Nf5 Bd6 Rac8 f8Q Ne3+ Kc5 Nd4+ Bc6 Rg8 h8Q Nd1 Bh2 Qg3 f7 Q1e3 Q8h7 g1Q Qd3 Qh6 Qd8 Qhg6 f8Q Q1f2 Qdg5 Ne2+ Qge3+ Be5 Qfh6 Kf7 Qg7+ Ke8 Rf1 Qfg1 Rf6 Rf8 Rd6 Rf3 Kd5 Q1f2 Qeh6 Bb2 Qh3 Qfe3 Q6h5 Qeg1 Qdd4 Rb3 Ba8 Qgc3 Ke5 Qf2 Bh1 Qg2 Q5f3 Qc5+ Qd5 Q6g3+ Kf6 Qe4 Qdg5 Qeg4 Kg6 Qe6+ Kh7 Qg6+ Kg8 Qcc3 Qgh5 Qc5 Qd3 Bf6 Bb2 a3 Ra1 a2 Ba3 Bb2 Rb1 a1Q Rc1 Qa2 Ra1 Qb1 Ra2 Qbc1 Qdxg6+
n7/7N/bQ1Q4/4K1b1/k3Pr1n/1BPQRQBq/b4pq1/NQb1n1N1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 d4 cxd4 f4 b4 fxe5 Nc6 a6 Rb8 a5 Rb6 axb6 Nb8 Ra3 Rh6 Rc3 Rh8 Rc5 Bb7 Rc8 Bxc8 Kd2 g5 Kd3 f5 h4 d5 e4 Kd7 h6 Kc6 c3 Kb5 h7 g4 e6 b3 b7 b2 a7 g3 a8N g2 e7 f4 e8Q+ Nd7 h5 f3 h6 Be7 Rh5 Bg5 Rh3 Ne7 Ne2 g1B Qh5 Qg8 b8Q+ Nb6 Qa7 B1e3 Nd2 f2 Qf3 Nf5 Nb3 Nh4 Na1 Ba6 Ng1 b1B+ Qc2 Ba2 Qb1+ Bb3 Ba3 Bc1 Bd6 Qg7 Bb8 Rf8 h8Q Rf4 h7 Qd7 Rg3 Qh3 Qf8 Qg2 Nc7+ Ka4+ Nb5 Ba2 h8Q Qh3 Qd6 Na8 Qab6 Qg2 Qhd8 Qh3 Kc2 Qg2 Bc4 d3+ Kd1 d4 Nc7 d2 Ke2 d1N Kd3 Ne3 Ne6 Qh3 Nf8 Nc2 Nh7 Ne1+ Ke2 Ba3 Bc7 d3+ Ke3 d2 Kd4 d1Q+ Ke5 Bb2 Qdd3 Qe2 Q8d6 Qef1 Bd5 Ba3 Bb8 Qfg2 Be6 Bc5 Bb3+ Ka3 Qfe2 Bc8 Qe7 Rf8 Kd5 Ba6 Re3 Bb4 Bg3 Rf4 Qf3 Bd6 Bc4 Ka4 Kd4 Bc5+ Ke5 Ba3 Qed6 Bc1 Bb3+
4Q3/1K2p1qN/4P2p/4n1rN/3k1rR1/bQr2BqB/NN1BPN2/1n2q3 b - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 g5 a4 d5 cxd5 b4 f4 Bb7 h4 gxh4 a6 Qd6 Ra3 Qe5 fxe5 Bc6 Rah3 Bb5 axb5 Ra7 b6 Ra8 Rg3 Nf6 Rg8 Nxg8 Kf2 Kd7 Ke3 f5 Kd4 f4 Kc5 h3 d4 b3 g4 h6 g5 f3 g6 h2 b7 f2 d6 Ke6 g7 b2 a7 c6 Kb6 Kd5 d7 c5 d8Q+ Kc4 e6 Rh7 d5 Nf6 g8N Rg7 d6 Nc6 b8N Ne5 d7 Rg5 Kb7 Nd5 Nd2+ Kd4 Nf6 b1Q+ Qb3 c4 Qe8 c3 d8N c2 Na6 Bg7 Nf7 Rc8 a8B Qa1 Nh3 Rc3 Rg1 h1Q Nb4 Qh2 Nh5 Qg3 Nc4 Qb2 Bf4 c1Q Na2 Qe1 Bd2 Bf6 Bg2 f1R Nf2 Bg7 Bh3 Bh8 Nh1 Rf4 Nf2 Rcf3 Nfd6 Nc6 Kc8 Kc5 Nb6 Qg4 Bg2 Nc3 Nd5 Nb1 Nc4 Bc3 Bb7 Bb4 Ndf6 Ba3 Nh7 Qg7 Bh3 Ne5 Nb2 Rc3 Bf3 Kd4+ Kb7 Qh4 Rg4 Qg3 Qc8 Ng6 Qc6 Ne5 Qe8
3q2r1/N2Q4/3b2PN/bB1NR1k1/1p3b2/1q1b1p2/1PN1B1Nb/3QnK1Q b - - 0 1 legal: proof: g4 g5 c4 e5 f4 f5 fxe5 d5 cxd5 b5 a4 f4 d3 Nc6 h3 Nce7 Be3 Nf5 Bc5 Rb8 Ra3 Rb6 Rc3 a5 Bb4 axb4 gxf5 bxc3 h4 g4 Kf2 Rg6 Ke1 Rg5 hxg5 Ba3 Rh6 Bb4 Rh1 Bf8 e4 Ke7 d6+ Kf7 f6 Kg6 d7 c5 e6 h5 f7 b4 a5 c4 e7 h4 e8B h3 e5 f3 a6 g3 d4 h2 a7 c2 a8N c1B d5 g2 e6 c3 e7 c2 d6 Kh5 g6 Ba6 Na3 Bd3 Nc7 Qa8 d8N Bch6 d7 c1B Nc6 Bhe3 d8N Qa5 Nc2 Nh6 Nd5 Bb6 Nh3 g1B Na7 Rg8 Bb5 Nf5 e8Q Bd6 f8Q Nd4 Be2 Bcf4 Qd7 Qa4 Nf7 Ba5 Qb8 Qb3 Nh6 Kh4 Kf1 Kh5 Na1 Nc2 Qa8 Ne1 Nc2 Bfe3 Nhf4+ Kg5 Ng2 Bef4 Nh4 Bf2 Rg1+ B2g3 Ng2 h1Q Qae8 Qh2 Qh7 Qh4 Qed7 Bfe5 Rh1 Qd4 Rh4 Bh2 Re4 Bef4 Re5+ Bf5 Ng4 Qb6 Qh3 Qc7 Nh6 Qd8 Re8 Bd3 Re3 Bg1 Qh1 Bgh2 Re5+
r1rN4/p1r1Rb1R/1B2P2K/1P1p4/2r2B1R/RQQ5/nrB2b2/kb5R b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 e5 fxe5 d6 a5 Be6 Nh3 b6 axb6 Na6 b7 Rc8 Ng1 Rc6 b8Q f5 g4 f4 Qa8 Kd7 Nd2 Qg5 Ndf3 Qf5 gxf5 h6 Ng5 hxg5 Rxa6 g4 Ra5 Be7 Ra1 Bf8 Kf2 g5 b4 d3 c4 g3+ Kf3 g2 Kg4 d5 h4 d2 e4 f3 h5 f2 b5 Bf7 c5 Kc7 h6 Rg6 Kh5 g4 h7 g3 c6 Kb6 c7 Kc5 c8R+ Kb4 e6 Bc5 f6 Kc3 e5 Ne7 Bd3 f1B Nf3 g1R Bc2 g2 Qc6 Rg3+ Kh6 Rg4 Ng5 Rc4 Rc7 Rc8 h8R Bd3 Rh7 Bf2 Ra3+ Kd4 Qf3 d1R Bf4 Rd2 Rh4 Bf5 Qb3 Rc1 Rd7 g1R Rh1 Be8 Nf7 Rg8 Nd8 Bf7 Qc7 Nc6 e7 Nb4 e8R Re2 e6 Na2 Rde7 Rh8 Rg8 Be4 Rg4 Rd2 Bd1 Rb2 Rgh4 Bb1 Bc2 Ra8 Nb7 Rhc8 Nd8 Bg6 f7 Bh5 f8B Bf7 Bd1 R1c3 Bh2+ Kd3 Bc2+ Kd2 Bg1 Kc1 Qe5 R4c7 Bg7 R3c4 Qec3 Bg8 Be5 Bf7 Bd1+ Bc2 Beh2 Kb1 Bf4 Be4 Bc2+ Ka1 Bd1 Bb1 Bc2 Be1 Bc5 Bf2 Bb6
1b2nB1k/2Q3p1/nQ1N1pn1/PKn1N1Q1/2pN2R1/R7/P4NNb/3n3b b - - 0 1 legal: proof: c4 b5 e4 d5 d4 dxc4 b4 e5 f4 a5 bxa5 Qd5 exd5 e4 d6 Ra6 d5 Rb6 Kf2 Ra6 Qd3 Ra8 Be3 Bf5 Qb3 Na6 Nh3 Kd7 Na3 Re8 Qb1 Re5 Qd1 Nb8 Nb1 Ke8 Ng1 Bc8 Bc1 Rg5 Ke1 Re5 fxe5 Be6 Nd2 Bf5 Nb1 Bc8 g4 f6 g5 Be7 g6 Bb7 Nh3 Ba6 Ng1 Bc8 Bf4 h5 Qg4 Nh6 Qd1 Kd7 Bh3+ Ng4 Be3 Rf8 Bc1 Rf7 gxf7 Bb7 Bf1 Nf2 Be2 Bc8 Bg4+ hxg4 Ke2 c5 f8N+ Ke8 h4 Kf7 e6+ Kg8 d7 b4 d8Q e3 d6 b3 h5 c3 d7 b2 h6 g3 Qd2 c2 Qc7 g2 d8Q Ng4 Kd3 e2 Kc4 e1B Nc3 b1N Nf3 g1N Ne4 Kh8 Ne5 Nf2 Ba3 c1N Rh3 Nf3 Kb5 c4 Qg5 Nd1 Nf2 Bd6 e7 Nb3 e8N Nc5 Ne6 Nba6 Nd4 Nh4 Qb6 Bf5 Qdc7 Ng6 Bb4 Bc2 Ra3 Nd2 Rb1 Nde4 Rb2 Be7 Nd6 Bd2 Rbb3 Bf4 Rg3 Bd8 Rg4 Bh2 N6f5 Be7 Nh4 Bd6 Ng2 Bb1 Qe7 Bb8 Qec7 Nb7 Bf8 Nbd6+ Ka4 Ne8 Kb5 Kg8 Nd7 Nec5 h7+ Kf7 h8N+ Kg8 Nf7 Be4 Nd6 Kh8 Ne5 Ba8 Ne3 Bh1 Ng2
K5Q1/5nr1/1qk1q1NQ/3b4/Q2N4/B3R1qb/QR1Pbr1P/R1n1Qnr1 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kd3 Kd7 Kd4 f1B Kc5 a5 e4 g5 b4 a4 f5 g3 e5 a3 d6 g4 f6 a2 f7 f2 f8Q g2 b6 g3 b5 Nf6 b7 Ra7 b6 Ne4+ Kd5 c5 Ne2 g1Q Na3 c4 Qa4+ Nc6 b8R g2 b7 c3 Qh6 c2 Nb5 Qb6 Nf4 Rf8 Ba3 Nd8 Ng6 Ng3 Re1 c1N Re3 a1Q e6+ Ke8 e7 Kd7 Qd1 Be2 Qa4 Qe1 Rf1 Qg7 Rg1 f1B Rh1 Ke8 d7+ Kf7 e8Q+ Kf6 Re5 g1R Re3 Nf7 d8Q+ Kf5 Qdh4 Bh3 Qhc4 Nf1 Qa2 Qg3 Qe7 Qgf6 Qe8 Qbe6+ Kc5 Bd7 Qe7 Bc6 Kb6 Qg2 Kc7 Qb2 Qeh4 Bd5 Qe1 Qbf6 Re8 Qb6+ Kb8 Qe7 Rb3 Ke6 Rb2 Kd7 Nf4 Qg4 Ng6 Rg2 Rg1 Kc6 Rh1 Rg8 Rg1 Rg7 Rh1 Qeh4 Re3 Qe6 Rg1 Ra6 Rh1 Rf2 Rg1 Qc5 Rh1 Rb6 Ka8 Qg3 b8Q Rb7 Qf8 Qb6 Qg8 Qge5 Nf8 Rg1 Ng6 Qg3 Qh5 Nb3 Qhg4 Ne5 Nf8 Rgg2 Q4g5 Rg7 Qd1 Nf7 Qda1 Qe7 Qh6+ Qe6 Re5 Ne3 Ng6 Qc7 Rhb1 Nf1 Re3 Rg1 Re1 Qb6 Qd1 Bef3 Qe2 Bh5 Ra1 Nc1 Qe1 Be2 Nd4+
4Qqbr/b4k2/2P3n1/bbR5/1RBB4/1QBn1rr1/2Bb1P2/K1BR2Nn b - - 0 1 illegal: No possible last move
2b3K1/3kR1bR/4n2B/qn1N3r/2rPQrR1/q1bQ1Q1P/R2rNR2/3r4 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Ke2 e5 Kd3 a5 Kc4 c5 b4 a4 f6 g3 b6 f3 f7+ Kd7 b5 e4 d6 f2 Kd5 f1R b7 a3 g6 c4 g7 a2 b6 e3 Ne2 g2 Nbc3 Nh6 g8R g1R Rg4 Nc6 b8Q Bg7 f8R Nf7 b7 Ng5 Rf2 Na7 d4 Rg2 Qd3 Nb5 Bd2 Ra4 Qa8 Qc7 b8Q Ne6 Qbb7 Rd1 Bc1 Ra5 Bd2 Rf8 Bc1 Rf4 Qc6+ Kd8 d7 Ke7 d8R Qb6 Ne4 c3 Nf6 c2 Bd2 c1R Re8+ Kf7 Ke5 Rc4 Qce4 Qd8 Qf3 Qe7 Qae4 Qa3 h3 Rh2 Re1 Rg2 Rh8 Ke7 Rh7 Rh2 Rc1 a1B Rc2 Bc3 Rb2 Kd8 Ra2 Bh6 Nd5 Bf8 Qf5 Ke8 Kf6 Bg7+ Kg6 Kd7 Kf7 Rg2 Kg8 Rh2 Nc1 e2 Q5e4 Rg2 Ref1 e1Q Ne2 Rf6 Bh6 Rf4 Nc1 Rh2 Rfe2 Rf2 Re3 Rfd2 Ne2 Nd6 Rf2 Rac5 Nc7 Rh5 Nd5 Nb5 Qg6 Nec7 Re8 Ne6 Qge4 Qg1 Rh4 Qg5 Rg4 Qd8 Qh1 Qc7 Qhf3 Qca5 Re7+
5qk1/1N6/nP1r3n/1n4Bn/1brBN3/bB2Q3/Bq3nPK/1RQNBb2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Ne7 b5 Qd8 Ra4 Ng8 Rb4 axb4 Kf2 f5 e4 Kf7 d4 c5 b7 h5 b6 f3 Kg3 f4+ Kh2 c4 e5 f2 d6 c3 d5 c2 d7 h4 d6 f3 Bb5 f1Q Ba6 h3 Be3 c1B Qe1 f2 Nf3 b3 Nfd2 b2 Nc3 b1N Bd4 Qb5 Nde4 Ba3 Nd1 Nh6 g6+ Kg8 g7 Nc3 e6 Qb2 e7 Nb5 e8Q Qe7 d8B f1N+ Kg1 Qf6 d7 Ng3 Kh2 Nh5 Qd2 Qf2 Bg5 Qf7 Qe6 Bfb4 d8N Ra7 Qe7 Qf8 Qc1 Be6 Qec5 Bc4 Qe3 Bf1 Qcc1 Nd6 Be2 Na6 b8B Nb5 Bg3 Rc7 Nb7 Rc4 Bf3 Nf5 Be2 Rh6 Be1 Rd6 Bd3 Nh6 Bc2 Nf6 Ba4 Nh5 Bb3 Nf6 Kg3 h2 Rg1 h1N+ Kh2 Nf2 Ba2 Kh7 g8B+ Kh8 Bd5 Kh7 Bf7 Nh5 Be6 Rc3 Beb3 Rc4 Rh1 Kg8 Bd2 Nb8 Qcc3 Qc1 Nb2 Be2 Re1 Qc2 Rb1 Bf1 Nd1 Qb2 Be1 Na6 Qcc1
1N5n/b1Q1B1q1/1qR2b1n/kNB1B3/3qr1Pn/B6r/r2PB3/1KQ2N1q b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 g5 b4 Bf5 h3 Bd3 Ra6 Be4 Rf6 f3 Rf4 gxf4 g5 Bf5 Na3 Na6 Nb1 Bg4 hxg4 Nb8 e4 Kd7 d6 h5 g6 c5 e5 a5 g7 f5 b6 Kc6 d7 f2+ Ke2 Kb5 Kd3 h4 Kc2+ c4 b7 h3 e6 a4 e7 h2 e8Q f3 Be2 f1N Nh3 f2 Bf3 c3 Qg6 f4 Qh5+ Bc5 Qg5 a3 Qd5 a2 Rg1 a1B Ba3 h1Q Qe5 Nc6 b8B Ng3 Qc1 f1R Qc7 Re1 Nf2 Rh3 Ba7 Nh6 g8N Ne7 Nd1 Re4 Ne3 Ng6 Nf1 Ngf5 Nf6 Nh8 Be2+ Ka4 b5 f3 b6 f2 b7 Nh4 b8B Bb6 Nh5 Ka5 Nf6 Qg8 d8B Qg7 Bde7 Bb2 Nh2 f1Q Nd7 Qf2 Nf1 Qfd4 Rg3 Qhg1 Rf3 Ba1 Rf6 Qgf2 Rc6 Qg1 Kb3 c2+ Ka2 Qgf2 Nc3 Bb2 Qd1 c1Q Nb5 Qg1 Qe1 Qh1 Qd1 Qcc5 Qc1 Bc3 Kb1 Ba1 Qb7 Bb2 Bbd6 Qcb4 Bab8 Ba7 Qc7+ Qb6 Bc5 Bf6+ Bb2 Qd4 Bba3 Qg2 Qh2 Qf3 Be5 Qh1 Nb8 Ka4 Bab4 Qh7 Nd7 Bb8 Bg3 Qg7 Bgd6 Ra5 Qg3 Ba7 Nb8 Ra6 Qf4 Kb3 Qh2 Ra2 Ba3 Ka4 Bc7 Ka5 Qd6 N6f5 Qd7 Nh6 Be5 Qd8 Qb7 Qb6 Qc7
1R1q1rbB/K7/3bq3/1B3P2/2nBP1Br/bn1qn3/N1Q1RQ2/2BR1nk1 b - - 0 1 legal: proof: c4 b5 e4 f5 a4 g5 axb5 e5 h4 d5 cxd5 gxh4 Na3 f4 Nc4 Bg7 d4 Bf8 Ne3 fxe3 dxe5 Qf6 Qb3 Qd6 Qd1 Qd8 Ke2 Kd7 Kd3 h5 Kd4 a5 f4 c5+ Kc4 a4 g4 a3 b4 a2 b6 e2 Kb5 e1Q d6 Ke6 d7 c4 g5 h3 b7 h2 g6 c3 g7 h4 Qd2 c2 Ne2 h3 Qc3 Nf6 g8R Nc6 b8B Rh4 Ba7 Ng4 Bd4 Na5 Qd2 Bc5 Nc3 Qe3 Qf2 Nc4 Be2 Qd3 Re1 h1Q Bf3 h2 Re2 Nge3 Bg4+ Nf5 Rb1 a1N Na2 Bd6 Kc6 Qg1 b5 h1N b6 Ng3 b7 Nb3 b8Q Nf1 Qc7 Qh1 Kb5 Qhh3 Kc6 Ba6 Qc8 Bb5+ Kb7 Rb8+ Ka7 Bc6 Bd2 Bd5 Rd1 c1B Qc6 Ba3 Bc1 Ncd2 Qc2 Nc4 Bh5 N5e3 Bg4+ Ke7 Rf8 Bg8 Re8+ Kf7 e6+ Kg6 e7 Kh6 Rf8 Rc8 e8B Rb8 Bgh5 Qe6 f5 Kg5 Bf3 Kf4 Bh8 Qg5 d8B Qgf6 Bb6 Qd8 Bbd4 Rc8 Bh1+ Kg4 Bb5 Kh3 Bg2+ Kh2 Bh3+ Kh1 Bg4 Rb8 Rf7 Rc8 Rb7 Rb8 Qf3+ Kg1 Rb6 Qg5 Qf4 Rf8 Rb8 Qd8 Qf2+
2Rq2q1/K1n3b1/Q1BP1rB1/B2B1bP1/1Nq2r1n/b2R4/1b1k1n1R/B4Q2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 hxg5 exf4 e4 Nd7 Na3 Nb8 Nc4 Bb4 Ne3 fxe3 Qh5 Bd6 Qd1 Bf8 Ke2 Ke7 Kd3 Kd6 Kd4 h5 b4 f5 g4 a5 b6 c6 g6 f4 g7 a4 g5 a3 b5 e2 b7 e1Q b6 f3 Bb5 h4 Rh2 f2 Bb2 f1Q Ne2 a2 Nc1 h3 Nd3 Ra4+ Nb4 Nh6 g8B Na6 b8R Bf5 b7 Nc7 Rc8 Qg3 b8Q Qb3 Rc1 a1B Rc3 Qf4 Qa7 c5+ Kd3 Ke5 d6 Qg4 d7 Kf4 Bc6 c4+ Kd4 Bg7+ Kc5 Qh4 d3 Ke3 Bgd5 Rf8 Kb6 Rf6 e5 Qa2 Ra3 c3 e6 c2 e7 c1B e8B Qhc4 d4+ Qab3 Bc3 Bab2 Qa6 Qa2 Ka7 Qab3 Rf2 h2 Qf1 h1N Rh2 Nf2 Bg6 Qa2 Rb3 Ba3 Bb2+ Kd2 Ba1 Bcb2 Rf3 Bb1 Rc3 Nf5 Rf3 Nh4 Rc3 Qf8 d8B Bf5 Re3 Na8 Ba5 Nc7 Bdf7 Qh8 d5 Qd8 d6 Qab3 Bfe8 Qg8 Bef7 Qc4 Bfd5 Qc3 Na2 Rf4 Nb4 Qc4 Rd3+
3Qk1b1/2Pn1nb1/nN1Q1r2/Br6/4n1K1/n5BQ/B1B1Pq1B/1n1r1NR1 b - - 0 1 illegal: No possible last move, all moves rejected
kNRq1Nn1/2N2r2/2Pb1r2/Q1Qbr1B1/Rb4QN/2N3bP/8/K1b2r1n b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kd2 d5 b4 Kd7 c4 Kc7 Kc2 Kb7 Kb2 e5 g7 a5 g6 e4 c5 e3 f6 d3 h3 g3 f7 d4 b6 e2 b5 e1B Qc2 d2 Ne2 d1R Qd2 g2 Rh2 g1B Qc2 d3 Qb3 d2 Qa4 Bgf2 Qc4 a4 Nbc3 Bg3 Ng1 Nd7 Nf3 Ndf6 Nh4 Bfd6 f8N Ra7 c6+ Kb8 b7 Rh5 Re2 Re5 Qc5 Nh5 Ra2 a3+ Ka1 Bd7 Re4 Be6 Ra4 Bd5 Rb2 Ngf6 g8Q a2 Qe6 Ng8 g7 Nf4 Qf5 Nd3 Qg4 Nf2 Qgb4 Nh1 Qa5 Bf4 Rbb4 Beg3 Re4 Rf1 Re2 Ne7 g8Q d1R Qg4 Ng8 Rf2 Be3 Rf7 Rf6 Rc7 Rd4 Bd2 Bh6 Bg5 Rdf4 Qe3 Rf1+ Qc1 Ra6 Rc8+ Ka7 b8N Ka8 b6 Ra7 Kb2 a1B+ Kb1 R1f4 Qa3 Bb2 Q3c5 Ba3 Ka1 Bb4 Na6+ Bb8 Qe3 Raf7 Qc1 Rf1 b7+ Ka7 Nf5 B8d6 b8N Ka8 Nh4 Bf4 Qe1 Bc1 Qf2 Bg7 Qfc5 Bh6 Bd2 Bf4 Be3 Bh2 Bg5 Bg3 Nc7#
1q6/2RQQ1Q1/2qqNb1R/2n1q1PK/R1q3r1/1Q1nPQb1/Bn1N4/3b3k b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 Nc6 h4 Bd7 b3 Bf5 h5 Bc8 Bb2 Nb8 Bf6 Ra6 f4 gxf4 g5 e5 Be7 Rb6 Bc5 Rg6 hxg6 e4 Bf2 e3 Qc1 exf2+ Kd1 Bf5 Qc2 Bg4 Kc1 Bd7 Qd1 Bc8 d4 Ke7 Kd2 Kd6 g7 h5 e3 c5 Ke2 f5 Kf3 a4 b4 c4 b6 h4 b7 h3 b5 c3 b6 c2 Bc4 c1N Qe2 f1Q+ Qf2 a3 Nc3 h2 Nce2 a2 Nc3 Nd3 Ba6 Nb2 Nce2 Nf6 g8Q Nc6 b8R Nb4 b7 Qd1 Ra8 N4d3 Bc4 Ne4 Bb3 Nec5 Rc1 a1B Ra5 Rh4 Ra2 Rg4 b8Q+ Qc7 Qa7 Qb8 Ra4 Bd7 Ra2 Ba4 Qaf7 Be7 Qfg7 Bf6 Q8f7 Qd2 Bc4 Bd1 Ra4 Be5 Ba2 Qdb4 Qg3 Q4b5 Kg2 f3+ Kh3 f2 Qf3 Bg3 Nf4 Qa6 Ne6 f4 Qb7 Qc6 Qb3 f1Q+ Qg2 Qf2 Nf3 Qd2 Rc2 Qdb4 Nd2 f3 Rc3 f2 Qf3 Qcb5 Rc4 Nd7 Rc7 f1Q+ Qg2 Qf4 Qf3 Q4c4 Qe5+ Ke7 d6+ Kf7 d5 Kg6 Qd4 Kf5 Qg7 N7c5 d7 Qc6 d8Q Qd6 Qde7 Qe5 Rg1 Qd6 Rg2 h1Q+ Rh2 Qe5 Qf2 Qhf3 d6 Qc6 d7 Qed6 d8Q Qe5 Nf1 Ke4 Qdd7 Qff8 Qff7 Qfd8 Qh5 Kf3 Rh1 Qf8 Nd2+ Kf2 Rh2+ Kg1 Qhf7 Qfd8 Qf3 Qf8 Rb7 Qbd6 Rc7 Qb8 Qg8 Qec3 Ra5 Nba4 Qgg7 Q3d4 Ra6 Qd4d5 Ra8 Bf6 Ra5 Nab2 Ra4 Q5e5 Rb7 Bf4 Rc7 Rg3+ Kh4 Rg4+ Kh5 Bg3 Kg6 Nb4 Rh8 N4d3 Kh5 Kh2 Rh6 Kg1 Qf2+ Kh1 Qf3+
q1Q5/1n2NqB1/nn1BQ1B1/1R3rB1/2PrQrBn/1R4r1/1P3q2/K1bk4 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 g4 Qc7 f5 Kf7 Nc3 Qb7 Nce2 Qb6 Nf4 gxf4 Bd3 Bb7 Bf1 Bf3 h3 Ke8 g5 Bg4 hxg4 Qd8 Kd2 Kf7 c4 e5 Kc2 a5 Kb1 h5 b6 d5 b7 a4 Qc2 d3 Be2 f3 Qd2 d4 Qb4 e4 Ka2 h4 Be3 d2 Re1 d1Q Qc5 f2 Qd6 f1R Qb4 h3 Bd2 a3 Qb6 d3 Qc6 h2 Bb4 d2 Be7 e3 Qa4 Rh4 Qd7 Qc7 Qb5 Qc2 Nh3 d1R Qc6 Bh6 Nf4 Rd4 Nd5 Ra7 Rg1 h1Q Rg3 Qf3 Bd3 e2 Bd8 Ne7 g6+ Kg8 f7+ Kg7 g5 Nc8 Ra1 e1N Qe6 Nb6 f6+ Kh8 Qe7 Ng2 f8B Rhg4 f7 Nh4 Be2 Ra5 g7+ Kh7 g8B+ Kg6 Bh7+ Kh5 g6 Na6 b8B Bc1 g7 Rg5 Rh3 Kg4 g8Q Qc8 Bf4 Qa8 Bg7 Rb5 f8Q Qg6 Nc7 Rbf5 Nd5 Rf2 Qff6 Qf7 Qe4 Rf1 Bd1 Qe2 Bb8+ R1f4 Qfe6 Rg6 Rf3 Qf2 Bdf6 Rg5 Qgc8 Rg6 Ne7 Rg5 Kb3 a2 Bd6 Rg6 Rb1 a1N+ Ka2 Nb3 Ra1 Rg5 Bg6 Nbc5 Be2 Nb7 Rb3+ Qf3 Bd1 Kg3 Kb1 Kf2 Ra5 Rg3 Bg5 Kf1 Ka1 Qf2 Be2+ Ke1 Re5 Kd2 Reb5 Ke1 Bg4+ Kd2 Bh3 Kd1 Bg4+
Rq3q1q/r1k2BB1/4nBPr/3qQK2/3R3Q/2r1RnP1/b4R1n/1N3R1r b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 Nc3 e4 axb5 Qf6 f4 exf3 Na2 Bc5 Nb4 Qd8 Nd3 Bd6 Nf4 Be5 Nd3 Bg3+ hxg3 Ba6 Nf4 gxf4 Qb3 Bb7 Qd1 Bc8 Kf2 Kd7 d4 c5 e4 a5 b4 f5 g5 h5 e5 a4 g6 h4 d6 c4 d5 c3 b6 h3 b5 h2 b7 a3 b6 c2 Ra2 Nh6 Qd4 Nf7 Qe4 Nc6 b8B Ng5 b7 Nd4 Ne2 Ra7 Nc3 Nde6 Bc4 Rh6 Rf1 h1R Bb2 c1R Nb1 Rc3 Bc7 Qg8 b8R Bb7 Ra8 Qb8 Bb6 Ba6 Bb3 Bc4 Bd4 Kc8 d7+ Kc7 Ra1 a2 d8R Kb7 d6+ Bd5 d7 Kc7 Ke1 f2+ Kd2 f3 Rf8 f4 d8Q+ Kc6 Rd1 f1Q Qf6 f2 Qh8 Nc5 e6 f3 e7 Nce6 e8R Kc7 Bg7 Qc4 Qh7 f1Q Rf5 Rc2+ Ke3 f2 Bbf6 Nf3 Rd4 Qc5 Qh8 Qf8 Bc4 Qg2 Kd3 f1N Rf4 Nfg5 Rf2 Nh2 Ke3 Ngf3 Bb3 Nd8 Kf4 Rc3 Kf5 Bg8 Bf7 Ne6 Rf1 Qd2 Rf2 Qd1 Nd2 Qdb3 Raf1 a1Q Nb1 Qba2 Red8 Qab3 R8d5 Qab2 Re5 Qd5 Qh7 Rh3 Qh6 Qa1 Qhf4 Rh6 Qh4 Ng1 Be8 Re3 Rc4+ Kb6 Qeg4 Qdc5 Bh8 Nc7 Qe2 Bf7 Bg5 Ngf3 Rf4 Bc4+ Bf7 Ba2 Qe1 Qc4 Ree4 Qag7 Bf6 Rc3 Qe2 Qgg8 Bhg7 Qh8 Re8 Qc6 Rd4 Qd5+ Re5 Ne6 Qd3 Qd7 Re3 Kc7 Qde4 Qd5+ Qe5+
q7/bnP4n/3rkqR1/Q1QBBr1q/R1r1PQ1B/K7/N1Q2nn1/1q1Q4 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 f4 Ke1 Bb7 Nd2 Be4 Ndf3 Bf5 gxf5 h6 Ng5 hxg5 Bd2 g4 Be3 Qc8 Bc1 Qd8 Kd2 Kf7 e4 g5 c4 d5 Kc2 a5 Kb3 g3 h4 a4+ Ka2 g2 b4 f3 h5 g4 b6 g3 b5 f2 b7 d3 h6 d4 b6 a3 c5 d2 h7 d3 c6 Ra6 f6 Ke6 f7 Qf6 Ne2 g1Q Nc3 g2 Rh6 Bc5 f8Q Nd7 b8B Qh1 b7 g1Q Rg6 Ba7 Qc5 Qh5 Kb3 Ra4 Na2 Rc4 Bd6 Qgh1 b8Q Qg1 Qc2 d1R Bg5 d2 Bh4 Qh1 Be2 f1N c7 Qg1 Qbb6 Ne3 Qba5 Ng2 Bd3 Rf1 Be2 d1N Bd3 Rd4 Bb5 Rf5 Bc6 Nf2 Qd1 Rc4 Qc2 Nh6 Qd1 Rg8 h8Q Nhg4 Qh6 Rd8 Qf4 Qe1 Nb4 a2 Ka3 Nh3 Qc2 Qb1 Qd1 Ngf2 Qc2 Kf7 Qd1 Ng5 e6+ Ke8 e7 Kf7 Be5 Ke6 Qc2 Nh7 Qd1 Nb6 Qc2 Nc8 Qd1 Rd6 e8Q+ Ne7 Qa8 Nc8 Qb7 Rd8 Qbb5 Nd6 Qba4 Nb7 Qac2 Rd6 Nd5 Qb5 Nb4 Qb6 Rb1 a1Q+ Na2 Qa6 Rb4 Qb1 Ra4 Bb6 Rg4 Qa8 Rg6 Ba7 Bd5+
2nr4/2nR1bNN/2B3rB/3Q1nP1/4Kn1b/1P1n1NB1/r2Q2N1/1r1n1Nk1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 exf3 h5 Qe8 Ra4 Qe6 Rf4 gxf4 g5 Qg6 hxg6 Ke8 Kf2 Ke7 d4 Kd6 e4 h5 b6 a5 b3 f5 g7 c5 b7 h4 Nh3 a4 Bc4 a3 Rf1 a2 Be3 a1R Ba6 c4 Ng1 h3 Qe1 h2 Nh3 h1R Qc3 Ra2+ Nd2 Be6 Qa1 c3 Rc1 c2 Rf1 c1N Rd1 Rh6 Qb2 Rg6 Ng1 Bf7 Bb5 Ne7 g8N Na6 b8B+ Nc7 Bc6 Nc8 Nf6 Be7 Nh7 Nd3+ Kf1 f2 Kg2 f1N Kf3 Ng3 Nf1 Ne2 Qd2 Bf8 Bf2 Bg7 Bg3 Be5 Ba7 Ne7 Bb6 Rd8 Ba5 Nc8 Bc3 Ke7 d6+ Ke6 d7 Kd6 d5 Kc5 Bb4+ Kd4 Be7 Bd6 e5 Bb4 Qc1 Be1 e6 Bf2 Bf8 Be1 e7 Bf2 Bh2 Bh4 Kg2 Ke4 e8N Kd4 d6 f3+ Kh3 f4 Kg4 f2 Kf5 f3 Bh6 Nf4 Qd2 Rc2 Bg3 Ra2 Nh2 f1N Ng7 f2 Ngf3+ Kc5 Ke4 Ne3 Nf1 Nf5 Ne3 Rf8 d8Q f1N Qd7 Rd8 Qe6 Rg1 d7 Rh1 Ng2 N1e3 Nh2 Rg8 d8N Re1 Ra1 Rb1 Nf1 Nd1 Qd7 Bc4 Nf7 Rd8 Ne5 Bf7 Qe3+ Kb4 Qd5 Kc3 Qed4+ Kc2 Nfe3+ Kd2 Nf3+ Ke2 Nf1 Rab2 Ra7 Ra2 Rb7 Nh5 Bd6 Nhf4 Qc3 Kf2 Qca5 Nb5 Rd7 Nc7 Qd2+ Ne2 N3h2 Kg1 Bg3 Nef4 Nf3+
5b1b/QK1b2PR/5b1Q/1R1rRr2/5BP1/Rnr4n/2knnN2/2N2QRr b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 Bg2 Qg5 hxg5 Ke8 Bf3 exf3 Kf2 Kd7 e4 Kd6 d4 f5 b4 h5 b6 c5 b7 a5 b5 a4 b6 a3 g6 c4 Qd2 c3 Rh2 c2 Nh3 a2 Na3 h4 Qa5 Rh5 Qd2 Bd7 Nb1 Nh6 Nc3 Na6 b8R Nc5 b7 Ra3 Ne2 Nb3 Rb1 a1B e5+ Ke7 e6 Kd6 e7 Nf7 e8R Ng5 Qd1 Bb2 Be3 c1B Re5 Ba1 Qg1 Bcb2 Nc1 Bc3 Qf1 Bab2 Kg1 f2+ Kg2 Ba1 Ra8 Bcb2 b8R f3+ Kh1 f4 Rb5 Ra7 Bd2 Rc7 Ra3 Rc3 Be3 Kc7 d6+ Kc6 Qe2 f1N Nf2 Nfd2 Qf1 h3 Kg1 Be8 d7 Kd6 d8Q+ Bd7 Qa5 Kc6 Ne4 f2+ Kh1 f3 Qa7 Bc8 Bf4 Bd7 Nc5 Kd6 N5d3 Kc6 d5+ Kd6 Qg2 f1N Nf2 Ng3+ Kg1 Ne2+ Kh1 Bg7 Qf1 Bf6 Raa5 Bh8 g7 Ba3 Ra4 Bb4 Ra3 Bb2 Rb6+ Kc5 d6+ Kc4 Rbb5 Be6 d7 Bf8 d8Q Bd7 Qdb6 Ba1 Rg2 h2 Rg1 Nh3 Qh6 Rf5 Nd1 f2 Kg2 h1R Rb2 Nb1 Rd2 Rh5 Rd3 Rf5 Kf3 Rg5 Ke4 Bb2 Qg2 f1R Nf2 Rf5 Rf3 Rd1 Qf1 Rd5 Rfg3 Rcd3 R3g2 Kc3 Rh2 Kc2 Rb4 Ra5 Rbb5 Rc3 Kd5 N1d2 Qc5 Bc8 Kc6 Bd7+ Kb7 Ba1 Qa7 Bb2 Rb6 Rd5 Rb5 Rcc5 Re4 Bf6 Re5 Rc3 Qg6 Ng5 Rh7 Nh3 Qh6
4q3/2Nn2nB/6r1/bQqQB3/B1PrQQ1R/PQ2nK2/2pr3q/1N2kb2 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 Ra5 Nc3 Ra7 Nb1 Ra8 d4 c5 a3 Ra6 c3 Ra4 Ra2 Ra6 Rc2 Ra5 dxc5 Ra6 c4 Ra8 Rc3 bxc3 Ke2 Kf7 h4 Kf6 f4 g5 c6 d5 h6 e5 c7 b5 h5 g4 h7 b4 h6 g3 Nh3 d4 Qb3 d3+ Ke3 g2 Qa4 g1R Nf2 d2 Qa6+ Qd6 Be2 d1N+ Kf3 b3 Bb2 c2 Bd4 b2 Rh4 Ne7 Bd3 Rg6 Qb5 Nd7 Nh3 Qc5 Ng5 Ne3 Ne6 Ra6 Bc3 Rd6 Be4 Bb7 c8B Rd2 Nc7 Bg7 Bc6 Rd8 h8Q Rd4 h7 e4+ Kf2 Ba8 Qg8 Bh6 h8Q+ Bg7 Nd2 b1Q Qd5 Qh1 Nb1 Qh3 Qh5 Bf8 Qg4 Qh2+ Qg2 Bh6 Qb3 Bg5 Ba4 Bc6 Rh7 Bh4+ Ke2 Be1 Rh4 Ba8 Ba1 Ba5 Bc3 Ng4 Bb2 e3 Kf3 e2 Qe4 e1Q Qh1 Kf7 f6 Ne3 Bb7 Rd2 Be5 N7f5 Bbc6 Ng7 f5 Nf8 Qg2 R8d4 Qg5 Nd7 Qh5 Kg8 f7+ Kf8 Qd5 Ke7 Qg4 Bb7 Qge4 Bc8 Bg3+ Kf6 f8Q+ Kg5 Be5 Bb7 f6 Bc8 Ba8 Bb7 f7 Bc6 Qe6 Bd5 Qa6 Be6 Qab7 Bh3 Qg8 Bf1 f8Q R2d3 Q7b5 Rd2 Rf4 Kh5 Bd5 Kg5 Be6 Kh5 Bg4+ Kh4 Qgd5 Rf6 Bf5+ Ng4 Bh7 Rg6 Bf6+ Kh3 Qed3 Qe8 Re4 Ne3 Be5 Qh1+ Kf4 Kg2 Qf6 Kg1 Qf8 Qh4+ Kf3 Qh2 Rh4 Bh3 Q3e4 Kf1 Qe7 Ke1 Qef7 Bf1 Qff4
3N4/N2RR2B/1p1P1K2/n2bQ2q/3Q2Q1/rQQ1rRq1/nbP1n3/1k4br b - - 0 1 legal: proof: g4 f5 b4 a5 e4 axb4 exf5 b3 Bb5 h5 Bxd7+ Kf7 gxh5 c5 Ba3 b2 Bb4 cxb4 Ke2 Kf6 Kd3 Ke5 h4 g5 f4+ Kd5 a4 e5 h6 g4 h7 b3 h5 g3 f6 g2 h6 b6 f7 Na6 f5 Be7 f8Q Bb4 a5 Rb8 f6 Bc3 f7 Qe7 Bf5 Bd7 Nf3 g1B Qd8 Rb7 f8R Qg7 Ng5 Rb8 Qg4 Ra8 Nf7 Ne7 Na3 b1Q Nb5 b2 Na7 Nc6 Qe7 Bcd4 Nd8 Be6 Ra3 Qg8 Rf7 Qd1 Qc7 b1N Re7 Kc5 Ke4 Kb4 Rf3 Bb2 d4 Bb3 d5 Ka3 d6 Ka2 Qc8 Nab4 a6 Na5 Qc3 Be6 Bg6 Bd5+ Kf5 e4 Kf6 e3 Rh5 e2 Rhe5 e1R Rd7 Qd3 Ree7 Qe8 Qe5 Nc3 Be4 Rg8 h8Q Kb1 h7 Nba2 Qhg7 Rf1 h8Q Qh5 Bh7 Ne2 Qgd4 Re1 Qgg4 Re8 Qhg7 Rh8 Qc3 Qe3 Qgd4 Qf2 Qgg4 Qg3 Rf5 Nec1 Rf3 Qhh3 Bg8 Nb7 Nb5 Re3 a7 Rh4 Bh7 Ne2 Qg6 Qhg4 Qge4 Qh5 Qg4 Rc8 a8Q Rh1 Qaa5 Ra8 Qab4 Ra3 Na7 Na5 Qbb3
3q4/b2Q3P/2rNR1qq/N1nQ3b/n3pr2/Q3QbN1/3P2B1/Q1r1k1BK b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 g5 g4 h6 f4 gxf4 g5 h5 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 Kg2 Kd6 h4 Ke5 g6 Kd4 h5 a5 b6 e5 b7 c5 h6 f3+ Kh2 g3+ Kh3 e4 b5 Ra6 h7 a4 d6 f2 Kg2 a3 f6 c4 d7 a2 f7 a1Q b6 c3 g7 c2 Bd3 Qe8 d8Q+ Nd7 b8Q Nf6 g8Q Nd5 b7 Bc5 f8Q N5b6 Rh6 f1B+ Kh1 Be2 Qbf4 Bh5 b8N Qa2 Na3 Qae6 Rg6 Na4 Bf1 Ba7 Ne2+ Kd3 Bb2 Qd6 Qc7 Qd8 Qa1 c1R Bd4 Qe6 Qb4 Ndc5 Nb5 Kc2 Qc6 Kd1 Nd6 Ke1 Qba3 Rb6 Qg7 Rf8 Qd5 Ba6 Qff3 Rf4 Qd7 Bc4 Nc6 g2+ Kh2 Qef6 Na5 Rc6 Be3 Qff8 Re6 Qh6 Bf2+ Kd1 Qfe3 g1Q+ Kh3 Qgg5 Kh2 Qgg6 Ng3 Bce2 Bg1 Beg4 Bg2 Bf3 Qed3 Ke1 Kh1 Be2 Qdc3 Bef3 Qe3+
b2b2RK/6B1/R4Q2/3nbR1R/P2BQ2p/4qnrr/1RBn1rNP/2k4r b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 Ne7 e4 Ng8 cxb5 a5 b4 axb4 f4 f6 f5 g6 Nc3 g5 Nce2 Nc6 exf6 Nb8 Nf4 gxf4 e5 Bb7 Rb1 Ba6 Ra1 Bc8 Kf2 Kf7 Kf3 h5 Ke4 c5 g4 d5+ Kf3 c4 a4 d4 Ke4 b3 b6 d3 b7 c3 g5 b2 Qc2 b1N Ra3 f3 Nh3 d2 Bd3 d1R Nf4 f2 Rf1 Bg7 Bb2 Nc6 b8R Nd4 Ng2 Ne7 Rb4 Nf3 g6+ Ke8 f7+ Kd7 f8R Kc6 f6 Kc5 f7 Nd5 e6 Qe8 Kf5 Bb7 e7 Be5 g7 Nbd2 Kg6 Rd8 g8R Ba8 Rb5+ Kd4 Rab3 h4 Re1 f1R Ba1 Rc8 Qb2 Rf2 Bc2 Rh5 Ra5 Rg5+ Kh7 Rg3 Ra6 Rb8 Re2 Rh1 Rb5 Rb6 Rba5 Rb3 Rc5 Ra3 Qb6 Rb3 Qf6 Ra3 Kh8 Rh3 Bb3 Kd3 Rb5 c2 Bd4 c1B Bc2+ Kc4 Rc5+ Kb4 Rca5 Rc3 Rb5+ Ka3 Rba5 Kb2 Rc5 Qb5 e8Q Qd3 Qe6 Qe3 Qf5 Nf1 Qe4 Bd2 Rb5+ Kc1 Rb2 Be1 Rd2 Ra3 Rd3 Ba5 Rdb3 Bg3 Rb5 Bd8 Rba5 N1d2 Rc5 Nc3 Rh5 Nd5 Qg4 Qe8 Rgg5 Ne1 Rfg8 Bb8 f8B Rag3 Qe2 Nef3 Bg7 Bd6 Qd3 Qe3 Rf5 Be5 Qe4
4b3/1Bn2npk/2Pb2rb/r4PQ1/QRq5/Br1N2B1/QR5B/n4KbB b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 f5 e4 Rh7 e5 Rh8 Nd2 Rh6 Ne4 Rh8 Bg5 fxe4 Bf6 Rh6 Bxe7 Rh8 h4 Kf7 c4 d5 b4 a5 f4 e3 c5 e2 e6+ Ke8 h6 a4 f5 d3 h7 d4 b6 a3 b7 a2 b5 Ra6 h5 Nh6 b6 Bd7 Rb1 a1B Nh3 Qc7 Bg2 Nf7 h6 Ra5 Nf2 Na6 b8B Qc6 b7 Nc7 Be4 Qb5 c6 Qc4 Ba3 Bd6 Qa4 Kf8 Rb2 Be8 Rh4 Rg8 Bh1 Rh8 Nh3 d2+ Kf2 d1R Nf4 Rd2 Nd3 e1B+ Kf1 Rg2 Re4 Rg8 h8Q Rg6 h7 Bd2 Rg4 Bh6 Re4 Ke7 Rg4 Kf6 e7 Rf8 Rf4 Kg5 Qg8 Kh5 h8Q Kg5 Rb5 Bb2 Re4 Bc1 Re2 Be3 Reb2 Bg1 R5b4 Qa2 Nf4 d3 Qhh7 d2 Nd3 d1N Qhh8 Bd7 e8B Qc4 Qhh7 Bc8 Bd7 Ne3+ Ke1 Nc2+ Kf1 Na1 Be6 Qd4 Bc4 Qh4 Ba6 Bd7 Qhh8 Be8 Qhh7 Nh8 Qa2 Qc4 Qg8 Kh5 Qe6 Nf7 Qf6 Bhf4 Qd8 Kh6 Qe7 Kh7 Qg5 Na8 Bc7 Rg8 b8B Bfe3 Bb6 Nc7 Bb7 Bef4 Bf2 Rh8 Qf6 Bh6 Bg3 Bd7 Ba7 Rb8 Qg5 Be8 Bh2 Ra8 Bc5 R8a6 Bf2 Rb6 Rb1 Rbb5 R4b2 Rb3 Bfg3 Rc3 Rb4 Rb3 Rb2
b1N1Nq2/pQbnN3/R3Q3/qBr3Nn/1k1B2q1/Q2r1Pq1/4KNP1/q7 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 h4 g5 b4 gxh4 b6 c5 b5 Nf6 Ra4 Ng8 Rb4 cxb4 d4 Kd7 b7 Kd6 f6 e5 f7 h5 b6 e4 f3 h3 Qe2 h2 Nh3 e3 Ng5 h4 Nc3 b3 Nd1 h3 Bb2 Qd7 Nf2 Nf6 Rg1 Be7 f8Q h1Q Qc4 h2 Ke2 Qa4 Bc3 Nbd7 b8N b2 b7 b1Q Nc6 Qb6 b8Q+ Qc7 Qb7 Rh5 Qa2 Qb6 Qe8 Qbb4 Qa3 Bd8 Ne7 Bc7 Qg6 Qa5 Qe4 Ne5 Qf5 Be6 Ba1 Rd8 Nc8+ Kd7 Qe4 Qf8 d6 Bb3 d5 Bc2 Qg6 Be4 Ngh3 Rf5 Ng5 Nh5 Qh6 Nc4 Bd4 Nb6 Kd1 Re5 Bd3 Rf5 Ke2 Re5 Ra1 Qg1 Rf1 h1Q Ra1 Qh3 Qg6 Qg4 Qh6 Ke8 Bb5+ Nd7 Ra2 Qa1 Qe6+ Qe7 Rc2 Rf5 Rc6 Kf8 Ra6 Ke8 Qh6 Qf8 Qf6 Re5 Qe6+ Qe7 Bc5 Kf8 Nfh3 Nb8 d7 Qb6 d6 Rf5 Qc6 Qa5 Qb6 Bd5 Kd3 Ba8 Qb7 e2 Be3 e1Q Bb6 Qee5 Nf2 Qeg3 Ke2 Rd5 Bc5 Rd3 Bd4 Qf7 Qe5 Re8 d8N Qff4 Qee4 Re5 Nc6 Ke8 Qe3 Qf8 N6e7+ Kd8 d7 Rf5 Ng8 Rd5 Nf6 Re5 Nd6 Ke7 d8N Nd7 Nfe8 Nb8 Ngh3 Nd7 Nc6+ Ke6 Nc8 Kd5 Ng5 Rf5 Ba4 Kc4 N6e7 Rb5 Qac1+ Kb4 Qe6 Rb6 Bb5 Rc6 Qg1 Rcc3 Qc1 Rc5 Qa3+
2R2QBN/3kN1qr/K1Q3rb/2R4N/2Pp1nN1/3Pn2q/2q1N1nn/3R3b b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 a4 c5 bxc5 Bb7 axb5 Bc8 f4 h6 g4 Qc7 Bb2 Qb6 Bf6 gxf4 g5 Qc7 g6 Qd8 Bg5 hxg5 Ke2 e5 Kd3 d5 c4 a5 h4 f3 f6 f2 g7 e4+ Kc3 a4 Kb4 a3 d3 e3 f7+ Kd7 b6 g4 Kb5 e2 b7 e1N h5 g3 h6 g2 h7 a2 Nd2 d4 Qf3 Ra6 Rh5 Rg6 Ne4 Qh4 Ne2 g1Q Bg2 f1N Nf2 Nh6 g8N Ng4 Ne7 Nge3 Ng4 Bh6 f8Q Qh3 Rd1 Nc6 Ka6 Nh2 Rf5 Ne5+ c6+ Kc7 Bh1 N1g2 Rg5 Bf5 b8N Be4 Nd7 Qf2 Ndf6 a1Q+ Kb5 Kd6 c7 Qa7 Nh5 Kd7 c8R Bd5 Nc1 Qc2 Ne2 Nf7 Qf6 Nd8 Rf5 Bb7 Rfc5 Ne6 Qf3 Bd5 Q3f6 Qc7 Ka6 Nef4 Qb6 Rhg8 h8N R8g7 Qbf6 Rh7 Qb6 Ba8 Qbf6 Qe5 Qb6 Qg7 Qbf6 Ne1 Bd5 Bc6 Bf7 Bh1 Bg8 N1g2 Qc6+
Q2N4/2b2RK1/Bq1B4/3rQB1P/7q/2n1Q1pP/1BRnBb1r/qk2q2b b - - 0 1 legal: proof: c4 c5 a4 e5 f4 h5 fxe5 b5 axb5 h4 Nc3 h3 d4 cxd4 gxh3 dxc3 h4 Bd6 h5 Bf8 Kf2 Ke7 Kf3 Ke6 Kf4 g5+ Ke4 a5 b4 f5+ Kd4 d5 c5 g4 b6 c2 c6 f4 b7 Kf5 e6 f3 e7 g3 e8Q f2 c7 a4 b5 a3 b6 a2 Nh3 Ne7 Qd2 Ra5 Qa4 Nd7 b8Q Nc5 b7 Ne4 Qe3 Nd2 Bb2 c1B Ng5 Rc5 Rb1 a1Q Nf7 Bd7 c8B Qb6 Qaa7 Bh6 Qa4 Bf4 Nd8 Bc7 Qaa8 Rh7 Rg1 Be6 Rg2 Qa4+ Kd3 d4 Ra1 Qab4 Ra7 Nd5 Bd7 Nc3 h3 Rf7 Bb5 Bd5 Ba6 Rd7 Rh2 Bh1 Rg2 Rdd5 Rh2 Bf4 Qd6 Ra5 b8B Ra2 Qc5 Be5 Qa5 Qe7 Bd6 Qh4 Rg2 Nde4 Kc4 d3 Rc7 d2 Rf7+ Bf6 Qb5 d1Q Rh2 Qe1 Qbc5 Re5 Kd4 Bd2 Qf3+ Bf4 Qe3 Nd2 Rg2 Kg5 Rh2 Rf5+ Qe5 Bg7 e4 Bf8 Bfc4 f1Q Be2 Qa1 Rf2 Qfe1 Rg2 Nb5+ Kd5 Nc3+ Ke6 Bg7 Qe3 Bh6 Q5c5 Rd5 e5 Bg7 Ke7 Bf6+ Kf8 Kf5 e6 Be5 Qh6 Ke4 e7 Bg5 e8B Be3 Qf6 Bf2 Bd7 Bf4 Kg7 Be5 Bb8 Bc7 Bf5+ Kf4 Rg1 Nf1 Bed3 Qe2 Bab5 Bd4 Kh7 Ke3 Ba3 Kd2 Ba6 Bd6 Kg7 Rb2 Bdc4 Kc1 Rg2 Qe1 Qe5 Be3 Be6 Kb1 Bf5+ Rc2 Bb2 Bg1 Rd2 Bd4 Rd3 Bg1 Qce3 Rh2 Bcb5 Bf2 Rd2+ Be4 Rc2 Bh1 Be2 Nd2 Q5f4 Be7 Be5 Bd6 Qfd4 Bb8 Bd6 Bc7 Qde5
2K5/1n4Nb/q1R1rp1B/1N2r2Q/B1rq2P1/bQ1Q4/2QP1Bkn/Q4nr1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Ne7 b5 Qd8 Ra4 Ng8 Rb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 h5 g4 c5 b7 f3 g6 f2 g7 h4 b6 h3 Bb2 b3 Na3 h2 Qc2 c4 Nh3 c3 Ng5 f6 Ne6 Ne7 g8Q Rh3 Ng7 Nbc6 b8B+ Kc5 d6 Na5 d7 Nec6 Kf5 Kd4 Ke6 Nb7 e4 Ne5 Bd6 Ra5 Bb5 f1N Ba4 Nf3 e5 Ra6 Rg1 h1Q Qh8 Qg2 Qh5 N3h2 Bb4 Rd3 Nb5+ Ke4 B2a3 Kf3 Bc5 b2 Bf2 b1R Be7 Ne3 Rc1 Nef1 Bec5 Qh3 Bce3 Kg2 Bg5 Rd5 Bh6 Nd6 b7 Qd3 b8Q Nb7+ Qd6 Qa5 Qb6 Bd6 Qa7 Qd4 Qb3 Rc5 Qf5 Rd5 Qfc2 Rc6 Qa8 Rc4 Qa6 Ba3 Qa7 Rdc5 Ke7 Rb2 d8Q Bf5 e6 Re5+ Ke8 Ra2 e7 Qa6 Qd5+ Be4 Kd7 Rb2 Qd6 Bh7 e8Q Ra2 Qh5 Re6 Qcb1 c2 Qac5 Rb2 Qa1 Rb1 Kc8 Re5 Rd1 c1R Qcc7 R1c3 Rc1 Rc6 Qd7 R3c4 Qdf5 Rce6 Qfd3 Ne3 Rc2 Rg1 Rc3 Nef1 Rc2 Rb4 Rc6 Rc4 Qe7 Rc1 Qc5 Rc2 Qcc3 Rc1 Qcb2 Rc4 Q2c2
4nN2/b2R2b1/1Pr2kr1/Kn3Q1n/4pr2/BN1qQ1Pn/1q3B1Q/QQ1B4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 b4 Nf6 h3 Bg4 hxg4 Nh5 f5 Nf6 Ra3 Ng8 Rf3 Nc6 Rf2 Nb8 Rf4 gxf4 d4 Kf7 Kd2 c5 Kc3 h5 f6 e5 b6 a5 d6 f3 b7 a4 b5 e3 d7 e2 d5 e1B+ Nd2 a3 g5 a2 d6 h4 Ne2 c4 Kb4 a1Q Ba3 f2 Qb1 h3 Nf4 h2 Be2 f1N Ne6 c3 Bd1 e4 Nb3 Bg7 Nf8 Rh6 b6 c2+ Kb5 Nc6 b8Q Bg3 Qa7 Nd4+ Ka5 c1R Qa6 Qe8 d8Q Qd7 Qb8 Rc6 Qc7 Nb5 g6+ Ke8 Rg1 h1N Qaa7 Qb2 Qb8+ Qc8 d7+ Kd8 f7 Nf2 Qf4 Nh3 Qe3 Bb8 Rh1 Ng3 Rg1 Bd4 g7 Nf6 g8Q Ngh5 Qgg3 Ne8 Qh2 Bg7 g3 Rhd6 Rg2 Ke7 Rd2 Kf6 d8B+ Kf5 Rd4 Rg6 Bg5 Qd8 Rd7 Ke5 Qa6 Ba7 Bf6+ Kf5 Bc3 Rac8 Be1 Rcf6 Bf2 Rcc6 Ne6 Ke5 f8Q Rf4 Qfc5+ Kf6 Nf8 Nbc7 Qf1 Nb5 Qd5 Qb8 Qa1 Qd6 Qdc5 Qd5 Qfd3 Qdd4 Qdb1 Qd3 Qf5+
BK6/1P1B4/QR4Pp/2B2n1n/1bq1N1r1/N1N1N1r1/1kbrq3/r2N1Q1q b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Ne7 b5 Qd8 Ra4 Ng8 Rb4 axb4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 e4+ Kc5 b7 b3 d4+ Kb4 g6 c5 d6 h6 g7 b2 d5 c4 b6 f3 g5 f4 d7 c3 d6 f2 g6 c2 Ne2 Kb3 Na3 b1R Bg2 f1R Nc3 f3 Be3 f2 Bc5 Na6 b8Q Re1 Qb7 Qh4 d8N f1Q d7 Qff2 Nc6 Nb4 d8N Na6 Ne7 Qe2 Kd6 Qef2 e5 Re4 e6 Bd7 Qf1 c1Q Nc6 Nb4 Kc7 Ra1 Nf5 Nd3 e7 Kb2 e8B Rg4 Qa6 Qe2 Nb4 Nf4 Ne3 Ne7 g8N Bf5 Nf6 Bc2 Bd7 Nh5 Nfe4 Nf5 Rh3 Ra7+ Kb8 Rh7 Rg3 Qh1 Rf3 Re7 Rh3 Re6 Bf3 Rd6 Nd3+ Kb3 Ndf2 Rd2 Bg2 Kb2 Rf3 Nfg3 Rf6 Nf5 Nd6 Rc7 Ba8 Rc6 b7 Rb6 Na2 Rb3 Nde4 Rbd3 Nac3 Be7 Ned5 Rdg3 Ne3 Bf8 Ba7 Bb4 Bc5 Qb1 Re6 Qa2 Rb6 Qac4 Nfd1+
5Q1N/4K2b/1q1rNR2/n1r1nbn1/1k1pBnb1/4B1P1/6BP/2b1BBNQ b - - 0 1 legal: proof: d4 e5 dxe5 c5 f4 h5 a4 b5 axb5 g5 b4 gxf4 Qd3 h4 Qh7 h3 Ra3 Ne7 Rd3 Ng8 Rd4 cxd4 Qxh3 Bc5 Qh7 Bf8 Kd2 Ke7 Kd3 a5 Ke4 f3 Kf5 d5+ e6 Kd6 e4 a4 c4 f6 g3 a3 b6 a2 e5+ Kc6 b7 a1N b5+ Kc5 b6 f2 Nc3 d3 Nb5 d2 Nd6 d1B Nf7 Bd7 Be3+ Kb4 c5 Nc6 b8Q Nb3 b7 Ra6 Qg6 Rh3 Nh8 Nba5 Qh6 Bf3 Qa8 Qb6 b8B Bg4+ Kg6 f5 Kf7 f4 e7 f3 e8B Rh5 e6 Nf6 e7 Bc8 Ba7 Bcf5 Bd7 Bg7 e8N Nh7 Nc7 Ne5+ Ke7 Ng5 c6 Bh7 Bg2 f1N Bf5 f2 Bfe4 Bgf5 Qf6 Bh6 Ne6 Bg4 c7 Bhf5 Bd4 Ne3 c8B f1B Qf8 Bd3 Bd7 Bh7 Bb5 Bc2 Bbf1 Bb1 Bgf3 Ng2 Be3 Nf4 B3g2 Bd3 Bef3 Bdf5 Be4 Qb5 Bf2 Rd6 Bae3 d4 Bed3 Ngh3 Bc6 Qb6 Ne2 Bfg6 Bd2+ Ka3 Bg1 Nf7 Bfg2 Re5 Qac8 Nh5 Bce4 Ka4 Qc1 Rc5 Be1 Bd2 Be3 Kb3 Rf1 Nhg5 Rf6 Nf4 B1f2 B6f5 Qh1 Bc1 Ng1 Kb4 Bdf1 Ne5 Be1+
2Kn4/1R4nR/k3rP2/n3b1Qn/1P4B1/B2n2p1/N2BQnb1/Q2QQ1qn b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 exf5 b5 g4 hxg4 a4 d5 axb5 Qd7 f6 Qd8 f5 Ra6 Nc3 Rd6 Ne4 dxe4 Qa4 Rd7 Qd1 Rd5 cxd5 Bd7 Nh3 Be6 Ng1 Bc8 Ke2 Kd7 Ke3 e5 h4 c5 b4 Kc7 d4 Kb6 h5 g5 d6 a4 d7 c4 h6 g3 h7 g4 f7 g2 f6 a3 d5 c3 d6 a2 Rh3 g3 Rh4 c2 Ne2 g1N Bd2 c1N Nd4 Nh6 Rh5 Nc6 Ne2 Bb7 Qe1 Nh3 Nc3 Nf4 Bh3 Ncd3 Bg4 Nf2 Bc1 Ka7 b6+ Ka6 Ba3 Nh1 Rh2 Qc7 d8Q Nh5 d7 Bd6 Qe8 Nd8 f8B Bc6 Rd1 a1N b7 Nb3 b8Q Na5 Na2 Qb6+ Rd4 Rg8 h8Q Qc5 Qg7 Nf5+ Kd2 e3+ Kd3 e2 Qg5 Bd5 Bh6 Nfg7 Qa8+ Qa7 Rc4 Bg2 Rc7 e4+ Kc3 e3 Rb7 Be5+ Kd3 Bh3 Ke4 Rf8 Qe7 Re8 Kd5 Bf1 Qf2 e1N Qe2+ Nd3 Qe6+ Ndc6 d8Q Bh3 Qe1 e2 Qee7 Ndf2 Qdd6 Nf5 Ke6 Nfg7+ Kd7 Bg2 Qdd1 Nd8 Kc8 Nac6 Qed2 e1N Q2e2+ Ned3 Qee1 Na5 Rh4 Bf4 Q7e2 Bc7 Qg6 Re7 Bd2 Re6 Qg5 Be5 Rh2 Nf4 Rh7 Nfh5 Qa1 Ne4 Qb8 Qg1 Qc7 Nef2 Qd7 Bf4 Qa4 Be5 Q4d1
1R5b/8/1bB2Qn1/2NRQbrn/Bn1b2Rp/2bRBR2/Pqb3P1/4k2K b - - 0 1 legal: proof: e4 d5 h4 a5 b4 axb4 c4 g5 hxg5 Nf6 cxd5 Ng8 d6 Bg4 Qf3 Bh3 Qd1 Bc8 d4 f5 d7+ Kf7 d5 b5 e5 Ra5 Nc3 Ra6 Ne4 Rd6 exd6 fxe4 f4 Kg6 Kf2 Kf5 g6 c5 g7 h5 Rh2 e5 Be3 h4 Bc4 b3 Nh3 b2 Kg1 b1B Bb3 c4 Qc2 Kg4 f5 Kg3 f6 b4 f7 c3 Nf4 Na6 Bb6 e3 Rh1 e2 Ba5 e1B Rh2 e4 Ng6 e3 Qd2 e2 Qc2 Ne7 g8B Rh5 Ba4 b3 Qf5 b2 Bb6 c2 Be3 c1B Kh1 Nb4 Ne5 Bg7 f8Q Bf2 Nd3 e1B Q8f6 Bc2 Nc5 Ng6 Rb1 Qb6 d8R Rg5 d7 Bc3 d6 Bh8 Bd5 B1d2 Rf8 Bd4 d8R B2c3 d7 Qb7 Rc1 b1N Bdc6 Nd2 Rf7 Ne4 Q5e5+ Kg4 Rh3 Ng3+ Kh2 Nh5 Kh1 Qb8 Rb1 Qb7 Rg8 Qb6 d8R B8f5 Rd1 Qb7 Rf3 Qb5 Rf4+ Kg3 Rd5 Qe2 Rff8 Qd2 Rc8 Qc1 Rb8 Qb2 Rd3 Bg1 Bd2+ Bge3 Rg4+ Kf2 Rgf8 Kf1 Bc1 Bf2 Be3 Ke1 Qg7 Bg3 Qef6 Bc7 Rf7 Bb6 Qe5 Be6 Rf3 Bf5 Qgf6
n1qq4/3kq3/3Nq1RQ/1KN4P/1Q1r1Q1r/5r2/pB1n2NP/2NNbrR1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bb4 g4 Bd7 Bg2 Bf8 Be4 Bf5 Bc2 Bg6 Bd3 Bh5 Bg6 hxg6 gxh5 Bb4 Ra4 Be7 Ra1 Bf8 d4 f5 Kd2 a5 Kc3 c5 Kc4 a4 b4 g5 e4 a3 b6 a2 e5 f3 b7 g4 b5 g5 e6 g3 e7 f4 b6 f2 d6 f1R d5 f3 Qd3 f2 Qf3 g2 Ba3 g4 Qe2 g3 Bb2 Na6 b8Q Nc7 b7 Nf6 Qe6 Ne4 Ne2 g1Q Qh6 g2 Nc1 Kd7 e8N Ra3 Nc3 Na8 Rb1 Ra4+ Kb5 Nd2 Nd1 Rh4 Ra1 c4 Rb1 Re1 Ra1 Qf1 Rg1 Re3 Rb1 Qe2 Ra1 f1R Rb1 Qc8 Ra1 Kd8 d7 Ref3 Qbf4 Qe6 b8Q c3 Nd6 c2 Qb7 Ke7 d8N+ Qc7 Qb8 Kd7 N8b7 Qd8 Rb1 Bg7 Ra1 Bc3 Nc5+ Ke7 Qb6 Rf8 Qa5 Rg8 Qab4 Rgg4 Nc4 Ke8 d6 Qde7 d7+ Kd8 Qf7 Rd4 Nce3 Kc7 d8N Kd6 N1d3 c1Q Ndb7+ Kc7 Nd6 Qc2 Rh1 g1Q Qff4 Qgg8 Rg1 Qgd8 Nc1 Qcf5 Rg2 Qec8 Rg6 Qfe6 N5b3 Kd7 Ng2 Rg3 Rb1 Rgf3 Nc5+ Kc7 Qb3 Rh1 Qb4 Nb3 Nf2 Rhd1 N1d3 Re1 Na4 Kd7 Rd1 Bd2 Nc1 Rg1 Rf1 Be1 Nd1 Nd2 Nge3 Rg2 Rg1 Rgf2 Ng2 Rf1 Nc5+
2Qr1qRn/K3R1qk/2q3B1/n2r4/1Q1pR3/b2P1bp1/nNP4Q/QQN5 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 a4 c5 bxc5 Bb7 axb5 Bc8 f4 h6 g4 Qc7 Bb2 Qb6 Bf6 gxf4 g5 Qc7 g6 Qd8 Bg5 hxg5 Kf2 a5 h4 e5 h5 d5 f6 g4 g7 Kf7 c6 e4 b6 a4 c7 a3 b7 a2 h6 Kg6 h7 f3 Ke3 f2 Kd4 g3 f7 e3 Rh4 e2 Na3 e1N Re4 Ra5 Nc4 Ne7 Be2 f1Q Nb2 Bg4 c8Q Qg2 g8R+ Kh6 Bf3 Nd3 Ne2 Ng6 Nc1 Nb4 d3 Qh1 Rb1 a1Q Qe2 Bh5 Qh2 Na2 Bg4 Ba3 f8Q+ Kg5 Qfc5 Kh6 Qb4 Qf8 Bd1 Qe1 Re7 Qe6 Bg4 Qc6 Re4 Nd7 b8Q Nde5 Q8b5 Nc4 Re7 Qcf6+ Kc5 Qc3 Kc6 Qcg7 Kb7 d4 Qb6 Rd5 Ka7 Na5 Be2 Rd6 Qg1 Bf3 Qf1 Bh1 Bh5 Rd5 Nb3 Rg5 Qbc6 Rg4 Re1 Qff7 Re8 Re4 Be2 Rf8 Rd8 Re5 h8Q+ Kg5 Qh2 Nh8 Qd5 Kg6 Bh5+ Kh7 Qdf3 Qff6 Qd1 Qc6 Re4 Rd5 Qfg1 Qc1 Qge1 Qg5 Qa1 Qf4 Qeb1 Bf3 Nc1 Rg8 Rf8 Qff6 Rff7 Re8 Rf8 Red8 Rg8 Qf8 Bg6+
bq5B/1QR5/1bNRR1q1/pr2b2p/Q3Q3/qRn5/2NK1RPP/kr2n3 b - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 f5 a4 c5 axb5 Nf6 bxc5 Ng8 f4 g6 e4 Qf6 Be2 Qg5 Bg4 fxe4 f5 Qe7 f6 Qd8 Bf5 gxf5 c4 Kf7 b6 Ke6 b7 a5 f7 d5 c6 h5 c7 d4 c5 Kd5 c6 Kc4 e6 f4 e7 d3 e8R f3 Bb2 e3 Bf6 f2+ Kf1 d2 Ke2 Na6 b8Q Bd6 f8R Nc5 Bg5 Nf6 Bf4 Be5 Qb6 Nd5 Qe1 f1Q+ Kd1 Qf3+ Ne2 Nd3 Re6 Bb7 c8R Rb8 c7 Ba8 Qc6+ Kb3 Na3 Kb2 Qa4 Rb5 Nc2 Qg5 Rcd8 Qg6 c8Q Qh3 Qh4 Ne1 Rdd6 Rh7 Rff6 Rhb7 Ra3 Rb8 Ned4 R8b7 Ke2 d1Q+ Kf1 Qd2 Nc6 Qb4 Ke2 Rb8 Qb7 Nc3+ Kf1 e2+ Kf2 Qhf5 Ke3 Qh3+ Kd2 Qhg3 Rf7 Kb1 Ra2 Qa3 Be3 Qf4 Rc7 Qf8 Qhe4 Qh8 Qa7 R8b6 Rf1 Qb8 Rf2 Rb7 Ra1+ Kb2 Rc1 Ka2 Bc5 Rb1 Bd4 R7b5 Qb7 Kb2 Ne3 Ka1 Rc2 Nd3 Rb2 e1B+ Kc2 Bd2 Rb4 Bc1 Rb3 Bb2 Kd2 Ne1 Bc5 Bd4 Bb4 Bb6 Bc5 Qg3 Bd4 Qg6 Bg7 Nd1 Bf6 Be5 Bh8 Nc3 Nc2+
4R1B1/2QQ2kr/2R1n3/pR1qpN1q/4r3/P3Rb2/n1B1PnqR/K1Q2b2 b - - 0 1 legal: proof: f4 h5 g4 c5 c4 g5 b4 Nf6 bxc5 Bg7 Bb2 Ng8 Bf6 Bf8 f5 d6 Be5 e6 f6 Be7 fxe7 Kd7 Na3 Kc7 Nc2 Kc6 Ne3 Kd7 Bf4 gxf4 g5 d5 Ng4 hxg4 cxd5 Qe8 Qc2 Qf8 Qd1 Qd8 e8R f5 d4 a5 Kd2 b5 Kc3 b4+ Kb2 b3 h4 g3 a3 e5 h5 g2 g6 f3 h6 f2 h7 f4 g7 f3 d6 Bb7 c6+ Kc8 d5 Ra7 c7 Kd7 c8R Nc6 Rh2 Nd4 Rc6 Nh6 g8B Ne6 Qc1 Ng4 Nh3 g1Q Nf4 Qh1 Bh3 f1B Ng6 f2 Ne7 Qa8 Kb1 b2 Ka2 Qf3 Rb1 Qf7 Bg2 Qh5 Be4 Qd8 Bc2 Qa8 Ra1 b1N Rh3 Qd8 Re3 Nc3+ Kb2 Qa8 Rb1 Na2 Ka1 Qd8 Rb2 Ba8 Rb5 Rb7 Rbc5 Rb4 Rb5 Re4 Bf7 Rg8 h8R Rg7 Rh6 Rh7 Bg8 Qg6 Rh2 Qh5 Rf8 Qc7 Rc8 Qd8 Rcb8 Ke8 d7+ Kf8 d6 Kg7 Rbc8 Qde8 d8Q Qef7 d7 Bb7 Qc7 Qf3 Rec3 Qd3 d8Q Qd5 Qdd6 Ra4 Rf8 Qb3 Rd3 Bh3 Qf4 f1Q+ Qc1 Nf2 Rcb6 Bf3 Rc6 Re4 Re3 Qd5 Re8 Qh1 Qdd8 Bf1 Qdd7 Qg2 Nf5+
RrrQq3/nP1Q2R1/2p2N1p/1N6/K1Nn1Qb1/2k3b1/P7/qBNn1q1N b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a5 b5 Ra6 Ba3 Ra8 Qc2 b6 Bb4 axb4 Qc6+ Bd7 Qxb6 Be6 Qb7 Bc8 Kd1 Kf7 Kc2 Kf6 Kb3 Ke5 d4+ Ke4 f4 e5 g4 c6 b6 h3 g5 h2 g6 Nd7 g7 Ngf6 g8N Bd6 Ne7 Bc5 d6 Nf8 d5 Kd4 d7 e4 d6 e3 Ne2+ Kd3 Nbc3 Ng8 f6 Ng6 f5 Ne5 f7 Ra6 f8Q Ng6 f6 Nh6 f7 Ra8 Nf5 Ne7 Nfg3 Nhf5 Nb5 Bd4 Bh3 Be5 Rag1 Rg8 Qa7 Nd4+ Ka4 b3 Bf5+ Kd2 Qh6 b2 f8N b1Q Nc1 Qa1 Bb1 Rh8 Qf6 e2 Qf3 e1Q Qe4 Qc7 d8N Qf1 d7 Qb8 Nb7 Rg8 Na5 Bf4 Na3 Kc3 N5c4 Bc7 Rg2 Bd6 Rhg1 h6 Nh7 h1N Nf6 Nf2 Nh1 Nd1 Rb2 Rf8 Rg7 Bg3 Qf4 Qe5 Rb5 Rb8 Ra5 Re8 Qc7 Qe6 b7 Qf7 d8Q Bg4 Ra8 Nc8 Qd5 Na7 Qdd7 Rec8 Qcd8 Qe8 Nb5+
r1Q5/1N3r2/nPPK2p1/3N2Rr/kQ2Q3/pn1bBR2/Q3qQ2/n1N2n1b b - - 0 1 illegal: No possible last move, all moves rejected
rQ2nB1Q/3P1q1r/BQ1Pp2n/2b2NB1/3BK1kB/7R/nN3b1p/5b1n b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Bh6 Ra2 Qd6 Rb2 Qd7 axb5 Bg7 b6 Qd8 b5 Bf8 Rb4 axb4 Ke2 Kd7 Kf3 c5 g4 h5 d4 e6 d6 c4 b7 h3 d5 b3 g5 h2 b6 c3 g6 c2 g7 h4 f6 h3 f7 b2 Na3 b1N Ne2 Ra5 Ke4 Rc5 f4 Ne7 g8Q Qe8 f5 Rc7 f6 Nf5 Nd4 Na6 b8Q Nh6 Bg5 c1B b7 Be3 Nf5 Bf2 Nc4 Rh7 Nb2 Nc3+ Kd3 Rc4 Qb3 Nc7 Qb6 Ra4 Qh8 Ra8 Bh4 Be7 f8B Na2 Ke4 Qf7 Ba6 Ne8 Bg7 Bf8 Rg1 h1N Rg3 h2 Rh3 Qg6 f7 Be7 f8B Qf7 Qe3 Kd8 Bd4 Kd7 Qa7 Kd8 b8B Bb7 Bd3 Ba6 d7 Bb5 Bf4 Ba6 Bc2 Bb5 Bfg5 Bf1 Qa4 Kc7 Qb4 Bc5 d6+ Kc6 Kf4 Kd5 Bd3 Be1 Qg1 Bf2 Ba6 Be1 Ke3 Bf2+ Kd2 Ke4 Qb8 Bg3 Kc2 Kf3 Kd2 Kg4 Ke3 Qf6 Ke4 Qf7 Qe3 Be1 Qeb3 Bf2 Q3b6
1Q4R1/2P1r1qQ/1RB5/2b1Bb1n/1k2p1bn/2rBPR2/1Bn1pb1B/2K1N3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 a4 b5 axb5 c5 Nc3 h4 d4 cxd4 e3 f5 Nce2 f4 Kd2 h3 gxh3 f3 h4 fxe2 h5 Qc7 Ra4 Qb6 Ra1 Qd8 f4 e5 h4 Ke7 c4 Kd6 a6 Kc5 f5 g5 f6 d5 h6 g4 f7 d3 h7 d4 h5 g3 b6 g2 h6 Nd7 b7 Qe7 b8B Kb4 a7 Ndf6 c5 Bg4 c6 Nh5 Nf3 g1B Ra6 Bf2 Bb2 e4 Bh2 Rc8 a8B Qf6 Qe1 Qg7 Bh3 Bc5 f8Q Ne7 Rf1 Nf5 Qd6 Rhg8 h8R Rge8 h7 Re7 Rg8 Nh4 h8B Bf5 Kc1+ d2+ Kb1 d3 Qb8+ Bb6 Qc1 d1N Ne1 d2 Bb7 Bc5 Rb6+ Ka4 Ba6 Nc3+ Kc2 Na2 Bd3 d1B+ Kb1 Bb3 c7 Bbe6 Qd2 Nb4 Kc1 Rd8 Qc3 Bg4 Qe5 Rd4 Qf5 Nc2 Qh7 Rc4 Bbe5 Bgf5 Bb2 Rc3 Bg4 Bg1 Rf3 Bf2 Bh3 Qf7 B8e5 Qg7 Bb5+ Kb4 Bg4 Bg6 Bf5 Bc8 Bfd7 Bf5 Be8 Bg4 Bec6 Bcf5 Bd3+
1Q1N1rr1/1Q3B1K/1RPPpB2/Qpq1n2n/b7/QR5r/1Qk1qR2/r2r4 b - - 0 1 legal: proof: g4 c5 d4 h5 dxc5 d5 gxh5 a5 b4 axb4 e3 Rh7 Bb2 Rh6 Bc1 Rh8 Nd2 f5 Qf3 d4 Ba3 d3 Qd1 e6 Bb2 Be7 Ne4 Bf6 Bc1 Bd4 exd4 fxe4 Kd2 Kd7 Ke3 Kc6 Kf4 Kb5 h4 Kc4 a4 Kc3 d5 b5 a5 e3 d6 e2 c6 e1Q a6 d2 a7 g6 c7 b3 h6 b2 h5 b1R h7 Bb7 c8Q+ Nc6 h6 Qe8 Kg5 Qf8 f4 Qe3 Nf3 Qb6 f5 Rb3 f6 Qd4 f7 Qd3 Bb2+ Kc4 Ne5+ Kb4 c4 Qg7 f8R Ra3 c5 Qc7 Rf2 Qa5 Rh3 Qc4 Nf7 Qc2 Qe1 Ne5 Be2 Bd5 c6 Qb6 Nd8 Bb3 Qb7 Ba4 Bh5 Qbc5 Rb3+ Kc4 Ra2 d1R Qa5 Qe2 Ra1 Rb8 a8Q Nf6 Q8a7 Rg8 h8Q Rf8 h7 Rg8 Kh6 g5 Qaa8 g4 Bf7 g3 Qg7 g2 h8Q Nh5 Kh7 g1R Ra2 Ng6 Bf6 Ne5 Qg3 Rc8 Qab8 Rf8 Qe3 Rg3 Qc1+ Rc3 Qg7 Kd3 Ra1 Ra2 Qa3 Kc2 Qg4 Rh3 Qd4 Rg8 Qaa7 Rg2 Qab4 Rc7 Qaa8 Re7 Re3 Bb3 Rd3 Ra7 Ra6 Rg8 Rb6 Raa1 Qba3 Ree8 Q8a5 Ba4 Rb3 Ref8 Qdb2#
qQ1RN1b1/4qrB1/4q3/1bN2r1k/P2Bp1P1/5pb1/B1K1n2q/B1BQ2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
q3b1Q1/q2B1NQ1/n1b1qQq1/4pp1Q/2N2r1r/1RPk4/1B2PB2/2Q1K1b1 b - - 0 1 illegal: Other
8/2r4q/1QpnPB1Q/q2RBN1n/4nBQ1/1q5b/P3B2p/1NBnbk1K b - - 0 1 legal: proof: c4 b5 b4 a5 g4 e5 h4 g5 Na3 f5 gxf5 g4 d4 axb4 d5 Ra6 Rb1 Rg6 Ra1 Rg5 hxg5 d6 Rb1 Nf6 Rb3 Ng8 Rd3 Bd7 c5 Bc8 Rd4 exd4 cxd6 Bg7 Rh4 Bh6 Rh1 Bf8 f4 Kd7 Kf2 h5 Kg2 h4 e4 h3+ Kh2 d3 e5 b3 f6 d2 g6 b2 f7 b1Q g7 b4 f5 b3 f6 c6 Bb2 Qa5 Bc1 b2 Qb3 d1N Qb6 Rh7 Be2 Nh6 g8Q Na6 Bf3 Nc5 Ne2 Nf5 Nd4 g3+ Kg1 g2 Qg4 Qc2 Nb1 Ne4 Bf4 Bg7 f8B Qb3 f7 Bf6 Kh2 g1N B8h6 Ne2 f8Q Bh4 Rf1 Rg7 Kh1 h2 Bc1 Re7 Bhf4 Be1 Qh6 Rf7 Rg1 Re7 Rg3 Rh7 Rh3 Re7 Rh5 N2g3+ Kg2 Rh7 Rg5 Nh5 Kh1 Ke8 d7+ Kf7 d8B Nfd6 Nf5 Rg7 Nd2 b1Q Bc7 Q1d3 Nb1 Rh7 Ng3 Bf5 e6+ Ke7 Qh4 Bh3 Qg4 Rg7 Qh8 Kf6 Nf5 Nc4 d6 Qdc2 d7 Ncd6 Bfd2 Ke5 d8B Kd5 Qh7 Kc4 Qh6 Kd3 Bb8 Rc7 Bf4 Qcc3 Be7 Qg7 Bf6 Qh7 B4e5 Qd2 Nd4 Ke3 Bf4+ Kf2 Rd5 Qdc3 Nf5+ Kf1 Bfe3 Rg7 Qc7 Qa5 Bf4 Ne8 Qb6 Rb7 Bbd6 Rc7 Bde5 N8d6 Be2#
r3k1K1/q1Qb1N2/1p1P4/nnNR1q2/2Rq3N/RnR1B3/rp1nP3/4Q2R b - - 0 1 legal: proof: f4 e5 c4 a5 b4 axb4 g3 f5 Bh3 d5 cxd5 h5 Bg4 hxg4 Na3 Bc5 Nb1 Be3 fxe5 f4 Nh3 f3 Ng1 Bf4 gxf4 Qd6 Kf1 Qe7 Ke1 Qd8 Kf2 g5 Ke3 c5 Ke4 b6 d4 b3 a4 b2 h4 c4 a5 c3 d6 f2 Kd5 f1Q d7+ Ke7 f5 c2 a6 g3 e6 g4 a7 g2 f6+ Kf8 f7 g3 e7+ Kg7 Ke6 Qf3 e8Q Qf1 f8R Qf3 d5 Bb7 h5 Bc8 Be3 c1N Nc3 Qf1 Ra4 Qc7 Rf3 Ne7 Ne4 Nbc6 Rc4 Nb3 Qe1 Nca5 Qd8 Nec6 Nc5 Ncd4+ Ke7 Qb8 Qc7 Nb5 d8R Bd7 h6+ Kg6 h7 Kg7 Rf6 Qf5 Nf3 g1Q Rc6 g2 Nh4 Qgf2 Rc3 g1N Rc4 Rg8 h8N Nf3 Nf7 Nfd2 Rc3 Q2f4 Rc4 Qd4 Rc3 Qb7 Rc4 Rb8 a8R Rc8 Ra7 Ra8 Ra6 Qa7 Rc3 Nb7 Ra3 N7a5 Rc4 Kh7 Rc3 Rg5 Kf8 Rg1 Qeg3 Ra1 Qe1 Ra2 Na6 Qh5 R6c4 Qhg4 Nc5 Qf5 Ng2+ Kg6 Nh4+ Kf6 Kg8 Ke7 Qb8 Bc8 Rd6 Ke8 Qc7 Qf2 Rg6 Bd7 d6 Qf3 Rg5 Qf2 Rd5 Qf1 Qc1 Qf5 Qe1
qBNqqNQb/Nr4p1/2P2k2/6q1/2N1pQ1n/4KP1N/1nBB1R2/1n3r2 b - - 0 1 illegal: Other
5bN1/3RBp2/1bq4Q/1R6/1rP2Q1n/r2Np1Kb/NPq3NR/r1Nk3r b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 d3 cxd3 g4 h5 g6 d4 g5 Nc6 Bh3 Nb4 Bg4 Nd5 exd5 hxg4 Kf2 Kd7 h4 Kd6 c4 Kc5 g7 Kb4 h5 a5 h6 e5 h7 e4 g6 d2 b6 d3 d6 a4 d7 a3 b7 a2 b8R+ Qb6+ Kg3 Nh6 g8Q Ra3 d8N Bf5 g7 Be7 Nb7 Qc6 Qf3 Kb3 Nc3 Kc2 Nge2 d1Q Bg5 d2 Rh2 Bb4 Rb1 a1R Qf4 Bc8 Qf8 Nf5+ Kg2 g3 Na2 Qc1 Nc5 d1R Bf6 Rg8 h8N Rh1 Ng6 Qd2 Kh3 g2+ Kg4 g1B Nh4 Bd4 Ng2 e3 Rd1 Nh4+ Kg3 Bh3 Nec1 Rh8 Q8d6 Rc8 Rb7 Rb8 g8N Qc3 Rd3 Qd2 Rb3 Kd1 N5d3 Qc2 Rd7 Ba7 Qe6 Bf8 Be7 Rb5 Rb4 Bc5 Qeh6 Bb6 Ra4 Rbb3 Ra5 Rb4 Rb5
2r1qr2/2B1Qp1q/k3p3/P5qN/QqNKR1nP/2n1NQb1/1R6/1N4nN b - - 0 1 legal: proof: c4 g5 d4 a5 f4 d5 fxg5 Kd7 cxd5 Nf6 b4 axb4 e4 Ng8 d6 Kc6 d7 Ra4 Nd2 Ra3 Nb1 Ra8 g4 Kd6 d5 Ke5 g6 Kf6 g5+ Kg7 Be2 h5 Bg4 hxg4 d6 b6 Kd2 Bb7 Ke1 Bd5 exd5 Rh7 Bd2 Rh6 Bc1 Rh8 Ke2 c5 Ke3 g3 h4 g2 a4 b3 a5 b2 Ra2 e6 Nh3 g1N Qa4 b5 Nf2 c4 Kd4 b4 Bf4 Qe8 d8Q c3 d7 c2 d6 c1Q Qe7 b3 d8N Nf6 d7 Ng4 Bc7 Na6 Nc6 Nc5 d8Q Rc8 Qd5 Ne4 Ne5 Nc3 Qf3 Kg8 Nc4 Bg7+ Kc5 Be5 g7 Bg3 Rh3 Qf4 Nh1 Qf5+ Kd4 Qh7 Nbd2 b1Q Rb2 Qbf5 Nb1 Qfb5 Rhh2 Qb4 Rbe2 b2 Re4 Qf5 Na3 b1Q Rb2 Kh7 g8N Kg7 g6 Qg5 Nf6 Rf8 Nd5 Kg8 Qc5 Qc2 Nb1 Kg7 Nf4 Kf6 Qa7 Ke7 g7 Qh6 Ng2 Qg5 Qa3 Kd7 g8N Kc6 Nf6 Kb5 Nh5 Qf4 Ne3 Qg5 Qc5+ Ka6 Qa4 Bh2 Qe7 Bg3 Re5 Qh7 Re4
1K2Q2N/3p1r2/q3PkBR/R1r4R/RpP3Rb/N3qqr1/3NQn1r/6n1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 dxc5 e5 fxe5 Ra4 Kf2 Ra6 Ke1 Ra8 Kd2 f4 Ke1 h6 Be3 b6 Bf2 Bb7 Bh4 Be4 Bg5 Bf5 gxf5 hxg5 Kf2 Ke7 Kf3 b5 Ke4 g4 Kd5 g5 a4 g3 c4 g4 e4 f3 h4 b3 f6+ Kf7 h5 g2 c6 f2 h6 g3 h7 b2 e6+ Kg6 a5 b4 a6 Qe7 c7 Qg7 c8R Be7 e5 Qh6 a7 Nc6 f7 Nd4 f8R Ne2 Rh5 Bh4 Kd6 Nf6 Kc7 Ne4 Nf3 g1R e7 g2 Na3 b1Q Nd2 Qb3 Rf4 Qf3 e8Q+ Kg7 Rd8 Qa6 e6 Rb8 a8R Rb5 Rg4+ Kf6 Qc2 Rc5+ Kb8 N2c3 Bd3 f1R Rg7 Ne2 Rg4 Nf2 Bg6 Rh1 Ra7 g1Q Qe4 Rg8 h8N Rh2 Rh6 Rg7 Rc8 Qgg3+ Rcc7 Ng1 Qe2 Qh3 Rcb7 Qe3 Rb5 Qhf3 Ra5 Rf7 Rb7 Rc1 Rbb5 Rc3 Ra4 Rc7 Rbh5 Rc5 Ra2 Qg2 Nc2 Qg5 R4a3 Rg3 Ra5 Qe3 R2a4 Qgf3 Na3
3q3k/2PrrP2/q1n3BN/pQ1rQ2Q/5Qqp/n1BN4/1QB2rRK/4b3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 b4 Qa5 g4 Kd8 f5 Nh6 Ra3 Ke8 Rf3 Bb7 Rf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ng8 Be3 Qc7 Bc1 Qd8 Kf2 Kf7 Kg2 h5 c4 d5 b6 a5 g6+ Ke8 c5 e5 c6 h4 g7 Kf7 g5 e4 b7 e3 b5 e2 c7 e1Q b6 f3+ Kh2 f2 g6+ Ke8 f7+ Ke7 Bb2 Kf6 Nc3 d3 Nce2+ d4 Nc1 d2 Nge2 Be7 Rg1 Bc5 Bc3 Rh5 Nd3 Ne7 g8Q Nd7 b8Q Nc6 b7 Bb4 g7 Nb6 Rg2 Nc4 Qe8 Na3 Ng3 Qe2 g8B Kg7 f8Q+ Kh8 f6 Rb5 Nf5 Rd5 Nh6 Qe6 Qa1 d1Q Qd6 Qdg4 Qh5 Ra6 Be2 f1R Qf4 Rf2 Bd1 Ra8 Bc2 Qee2 Ne1 d3 Bh7 d2 Nd3 d1R Bg6 Re1 Qb2 Qf1 Qc8 Re7 b8Q Rdd7 Qbb7 Rb8 Qa6 Rb5 Qhe5 Rbd5 Qb5 R7d6 Qcf5 Rdd7 Qh5 Qfe2 Bd4 Be1 Bc3 Qe4 Q5b3 Qc4 Qb7 Qb5 Qa6 Qb7 Qab5 Qa6 f7+
q1nr4/rpnNbn2/5B2/1P3B1B/QQnkpBKN/1R6/P6B/2n2Nn1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 d3 c5 d6 c4 Na3 c3 Rb1 Be6 Rb4 Bc4 dxc4 axb4 Ke2 Kd7 Kf3 e5 g4 h5 g5 h3 c5 b3 c6+ Ke8 f6 Kf7 g6+ Ke6 f7 b2 g7 b1N d7 c2 c7 h4 c8B h2 Bf4 c1N Be2 h3 Nc4 e4+ Kg4 Bc5 f8Q Na3 Qa4 Kd5 Nf3 Na6 Nh4 Kd4 Ne3+ Nc4 Nf1 Ne7 g8N Ra7 Nf6 Nc7 f3 Qe8 d8B Bd6 Bd7 Nc8 Bf5 Be7 Rg1 h1N Rg3 h2 Nd7 Rh6 Rh3 Ng3 Bd1 h1N Be2 Bg5 Qfb4 Rd6 Bd1 Nge2 Bf6+ Kd3 Bh2 Ng1 f4+ Ng3 Bf3 N3e2 Rg3 Nd4 Rh3 Nc6 Rg3 Qe5 Bd1+ Kd4 Rb3 Nd8 Be7 Rc6 Nf6 Rc5 Bd7 Nce6 f5 Ra6 Kh5 Nb6 Bd6 Qd5 Bdf4 Ra7 Bg4 Rc7 Be8 Qe5 Nd7 Rc8 f6 Qb8 f7 Nc7 f8B Be7 Bf5 Qa8 Kg4 Rb8 Bh5 Nf7 B8h6 Rd8 Bhg5 Nc8 Bf6+
2B5/r1r2k1n/3q4/5bRp/Pb1B4/bQ1Br1bB/Pr2p2B/KQR1N2Q b - - 0 1 legal: proof: f4 d5 e4 f5 c4 fxe4 cxd5 a5 b3 g5 f5 a4 bxa4 Bd7 Qf3 Be6 Qd1 Bc8 h4 Bh6 g4 Be6 h5 Nc6 Nc3 Bc8 Nce2 Bf8 Nf4 gxf4 g5 Ne5 Ba3 Nf6 Bc1 Ng6 hxg6 Ng8 d4 h5 Kd2 e5 Kc2 b5 Kb1 c5 d6 e3 g7 e2 d7+ Kf7 g6+ Ke7 d5 e1B d6+ Kf6 Bd3 b4 Be3 e4 Nf3 b3 Rg1 b2 Rg5 c4 Qb3 Bg3 Ne1 f3 Bg1 f2 Bh2 Qe7 d8B f1R d7 c3 Bb6 e3 d8Q e2 Qdd5 Rh7 Qh1 Qd6 Bd4+ Ke7 f6+ Ke8 Bf2 Ra7 Bd4 Rf3 f7+ Ke7 Qb5 Be6 Qb3 Nf6 g8B Re3 g7 Bf5 Qf1 Rh6 Qh1 Rh8 Bh7 Rc7 Bg6 Rh7 g8B Rg7 Qa3 Nh7 Qb3 Bg4 Bge4 Bf5 Bg2 Ra7 Bh3 Rc7 Kc2 Ra7 Rc1 b1R Qc4 Rb5 Qb3 Rb4 Kb1 c2+ Ka1 Rb6 Rd1 c1B Qb1 Ba3 Rc1 Nf6 Bh7 Rb2 Ba6 Ke6 Bg6 Be7 f8Q Nh7 Qb8 Bf8 Bd3 Rgc7 Be8 Be7 Bd7+ Kf7 Qb5 Qe5 Bc8 Beb4 Qc4+ Qe6 Qc3 Qd6 Qb3+
1R6/3q3r/BN3nrp/1rQ1QRn1/Qr3nQQ/1kPq3N/1N1r2pP/2K5 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e3 d5 Ke2 b5 axb5 d3+ Kf3 e6 Ra5 d4 Be2 d2 Ra2 d3 Bf1 Bc5 Ra1 Bd4 exd4 Nc6 g4 Kf8 b3 Qd5+ Kg3 Qd6+ f4 Ke8 Kf2 Nb8 f5 Qf8 Ba3 Bb7 Bd6 f6 Be5 fxe5 f6 Be4 Nf3 Bf5 gxf5 Qd6 Ng1 Qd8 Ke3 Kd7 b6 Kc6 f7 Kd5 f8N a5 f6 g5 c3 h6 b7 g4 b4 Kc4 f7 g3 d5 a4 b5 a3 d6 e4 b6 a2 d7 g2 Be2 e5 Qc2 d1Q Bf1 Ra6 Qd2 Ne7 Qc2 Ng6 Qb2 Rh7 Qc2 Nf4 Nh3 Qg4 Kd2 e3+ Kc1 e2 Rg1 e1N Be2 e4 Rf1 e3 Na3+ Kc5 Rb1 a1R Qa2 Nf3 Nc4 Ng5 Nb2 Kb5 Qe6 R1a4 Qa2 Rb4 Qa4+ Kc5 Rf3 Qg3 Rf1 Qe8 d8Q Nd7 b8Q Nf6 b7 Qd7 Qbc8+ Rc6 b8Q d2+ Kd1 Kd5 Ba6 e2+ Kc2 d1R Rf3 Qd6 Nd7 e1R f8Q Re5 Nb6+ Kc5 Qe6 Rd2+ Kc1 Qe7 Rf2 Qd3 Qg4 Rd6 Rf1 Qd7 Qde7 Ree4 Qbe8 Rb5 Qeh5 Reb4 Qe5+ N6d5 Qff5 Rg6 Qgh4 Kc6 Qfg4 Nf6 Nd5 Kc5 Rf3 Nfe6 Rf5 Nf4 Nb6+ N4d5 Qe6 Rd4 Nd1 Nge4 Rf2 Ra5 Na8 Rc4 Rb6 Rb4 Rb8 Rab5 Qe7+ Kc4 Qhe5 Rgg7 Rf5 Nf4 Qa5 Ng5 Q7c5+ Kb3 Nb2 Rg8 Nb6 Rg6 Qa4+
1N2K1RB/1n2B3/1k4rP/3p1r1n/B7/1rrrnRp1/3P1QBb/R1r2BQ1 b - - 0 1 legal: proof: b4 c5 a4 e5 f4 exf4 a5 b6 Nc3 Bd6 Nd5 Be7 axb6 Bd6 b5 Bf8 Nb4 cxb4 h3 h5 g4 h4 Ra3 Qg5 Ra1 Qh5 gxh5 Rh6 Ba3 Rh7 Bc1 Rh8 Kf2 g5 Nf3 g4 Ke1 g3 Ng1 Bb7 Ra5 Bf3 Ra1 Bg4 hxg4 Ke7 Bb2 Kd8 Bc1 Ke8 e4 Kd8 Ke2 f5 Kd3 d5 Kd4 a5 Ke5 a4 Ke6 h3 Kf7 b3 c4 a3 c5 h2 g5 f3 g6 a2 g7 b2 b7 Kc7 b6+ Kc6 e5 b1R h6 f4 e6 f2 e7 f3 e8B+ Nd7 b8B Rb3 b7 Raa3 Be5 Nf6 b8Q Rg8 Ne2 Nh5 Qa7 Kb5 c6 Bc5 Rg1 h1R c7 Kc6 Bg2 f1N c8B f2 Ba6 Ne3 Rf1 Rd3 Bd6 Rac3 Be7 Rh4 Bb2 Rb4 Bc4 Rbb3 Qe1 Bd6 Qd4 Bc5 Qf4 Kb7 Nd4 Kb6 Nc6 Bd4 Qb1 Nc5 Nb8 Nb7 Ba4 Bc5 Rc1 f1R Qf2 Rd8 g8R Rd6 Rc2 Rg6 Ke8 Bd4 Qbe1 Bc5 Qg1 Rf5 Qef2 Bd4 Rcc1 Bc5 Rf1 Bd4 Rae1 a1R Ba6 Rac1 Bc4 R1c2 Ra1 Rc1 Bcb5 Bc5 Bc4 R3c2 Bbf6 Rcc3 Bh8 Rcb1 Qf3 Nc2 Bef6 Rc1 Be7 Re3 Qh2 Bd4 Be2 Red3 Rf2 Be3 Bef1 Bc5 Qe2 Bd4 Rf3 Bg1 Qf2+ Ne3 Qh1 Bh2 Qhg1
1Q2RQ1k/1nB5/3Q1R2/2P2NqQ/1p3R2/P1rnrB2/K2Q1pp1/b3r1nb b - - 0 1 illegal: No possible last move
n4Q1Q/K2bpr2/QBp3R1/b2r1nN1/1q3n1N/1k2B1p1/1BQPP3/1Q5r b - - 0 1 legal: proof: c4 a5 a4 b5 axb5 g5 f4 d5 fxg5 Bf5 cxd5 Bg4 b6 Bc8 b4 h5 g4 Ra7 b5 Ra6 g6 Bb7 g5 Bc8 Ra4 Ra8 Rb4 axb4 Bh3 Rh6 Be6 Rh8 Bg4 hxg4 Kf2 Kd7 Ke3 Kd6 Kd4 f5 h4 c6 h5 b3 g7 b2 h6 f4 g6 g3 h7 f3 b7 f2 b6 f1N Nf3 Nh2 Qc2 Qd7 Nh4 Nh6 g8Q Ra1 g7 Ra6 Nc3 b1R Bb2 Nf5+ Kc4 Ke5 Kc5 Nf3 d6 Rf1 Ne4+ N3d4 Qgc4 Ra5+ Qb5 Qe8 g8Q Bd7 Ng5 Bg7 Qf8 Qh5 Rh2 Qg4 Rf2 Qe4 Rf4 Rh1 Rg4 Rg8 h8Q Bf6 Ne6 Rg7 Rg6 Rf7 Ng5 Na6+ Kc4+ Nc5 Qa6 Nd3 b8Q Nf4 b7 Rc5+ Kb4 Kd5 Ka4 Nb5+ Ka5 Bg7 Kb6 Nc7 Ka7 Qd4 Qhg8 Na8 Qh8 Be6 d7 Qb4 d8B Bd7 Bb6 Bc3 Qbc8 Rb5 b8B Kc4 Qa1 Rc5 Qab1 Rd5 B8c7 Ng7 Be3 Nf5 Qe4+ Kb3 Qa6 Qc4 Bcb6 Ba5 Qed3+ Qc3 Qe4 Qb4 Qec2#
Q3nrN1/K1Rpr3/1r3pN1/P1Nb1b1B/8/n1PQ1Nn1/Q1NB3p/2k2q2 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 e5 f4 g5 fxe5 c5 dxc5 Bd6 Ra2 Bf8 h4 Ra7 g4 Ne7 Ra3 Ng6 Rf3 Bh6 Rf4 gxf4 g5 Ne7 g6 Bg5 hxg5 Ng8 Kf2 Ra5 Ke1 Ra8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 c6 h5 c7 h4 Kb6 f6 a5 h3 e6 h2 e7 b3 e8N f3 g7 f2 g6 b2 Bd2 Ne7 g8Q Rh7 g7 Nf5 Nf3 Qe7 Qa2 Ng3 g8N Na6 Na3 b1N Be1 Ke3 Ng7 Qe4 c3 Qc4 Ne6 Re7 Nc5 Qf4 Bh3 f1B Bg4 Bh3 Bh5 Bf5 Qdd5 Rb8 Ka7 b5 Qa8 Bb7 c8N b4 Rf1 Rh7 Nce7 b3 Ng6 b2 Rg1 Rf8 Rg2 Nf1 Rg4 Re7 Rh4 Qc4 Rf4 Qb5 Rc4 Nc7 Nb3 Rg7 Rc6 Ng3 Nc5 Ne6 Rc8 Bd5 Rc7 Rgf7 Nb7 Ng7 Nc2+ Ke4 e3 Kd3 e4 Na3 e5 b1R e6 Ke2 e7 Kd1 e8Q Kc1 Qe5 Re7 Qe4 Ne8 Nc5 Qf1 Qd3 Rb6 Bd2+
1RQN4/bq1r1b2/6NR/8/nQq1p1B1/1r2Pp1P/k3npRR/NR3Kn1 b - - 0 1 legal: proof: b4 a5 bxa5 d5 g4 g5 f4 b5 a4 h6 axb5 Kd7 c4 Ke8 cxd5 Be6 Bb2 Bd7 Bf6 gxf4 g5 Bg4 g6 Bc8 Bg5 hxg5 d4 Kd7 g7 Kd6 h3 f5 a6 e5 a7 c5 e3 c4 b6 f3 b7 c3 Ba6 c2 Na3 c1Q Ra2 e4 Rc2 f4 Be2 g4 Ra2 g3 Nc2 g2 Rh2 Nf6 g8Q Qe7 Ra1 Nh5 Rb1 Be6 Na1 Na6 b8R Qc4 Qa4 Rh7 Qb4+ Nc5 Qh8 Bg7 Qc8 Qb7 Bd1 Bf7 Ne2 g1N Kf1 Bf6 Rg2 Bd8 Rh2 Bb6 Rg2 Ke7 d6+ Kf6 d5 Ke5 d7 f2 d8R Na4 d6 Kd5 d7 Bd4 Rh2 Ng3+ Kg2 Rg7 Rh8 Bc5 d8N Bb6 Nd4 N3e2+ Kf1 Bc5 N4c6 f3 Rh6 Rh7 Ne5 Bb6 Bb3 Bd4 Qc7 Bb6 Ng6 Rg7 Rc8 Rb8 a8R Rh7 Ra6 Ba7 Rc6 Bg8 Rf6 Rd7 Rf4 Bf7 Rg4 Qa8 Rgg2 Rb6 Ba2 Qb7 Rb8 Rb5 Qc8 Rb6 Qb2 Rb3 Nc6 Kc5 Nd8+ Kb4 Qd2+ Ka3 Qc3 Qca6 Qd2 Rb2 Bc4 Rb3 Be6 Qc4 Qb4+ Ka2 Bg4
4q3/r2P1PR1/1b1rB1pR/2Qr1B2/1RQ1p2p/4q1NR/R2n1knK/5b1Q b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 b5 c4 g5 cxd5 b4 b3 Qd7 h5 Bh6 a3 Qd6 axb4 Qd8 b5 Bf8 g4 Bh6 Bb2 Kd7 Na3 Ba6 Nc4 Ke8 Ne5 Kf8 Ng6+ Ke8 Be5 Nf6 Bg3 Ng8 Bh4 gxh4 g5 Bf8 Ne5 Qd7 g6 Bc8 g7 Qd8 Ng6 hxg6 f4 Kf7 Kf2 Kf6 Kg2 a5 d4 c5 d6 e5 d7 c4 b4 c3 d5 c2 b6 c1R h6 a4 h7 a3 d6 e4 b5 a2 b7 Be7 b6 Rc6 Ne2 Ra5 Rh3 Ra6 Ng3 Rc7 Kh2 Qe8 d8R Rc5 d7 Nc6 b8R Rd5 b7 Nh6 g8B Bc5 Be6 Na5 Qc1 Rad6 Qc4 Rf8 h8R Nb3 Be2 Bd4 Bg4 Bb6 Rg8 Nd2 Rg7 Qe7 Re8 Qf7 Re7 Qe8 Rh7 Rg8 Reg7 Rf8 Rb1 a1Q Ra8 Qa4 b8Q Qa7 Rb4 Ba6 Qbc8 Bb5 Q8c5 Qa3 Qg1 Qe3 Ra2 Rg8 Qh1 Rf8 Qc7 Bf1 Qc2 Nf7 Rh5 Ne5 Rh6 Nd3 Qc7 Ne1 Qc4 Ng2 Rg8 Ke7 f6+ Kd8 f7 Ke7 f5 Kf6 Rg7 Ke5 f6 Kf4 Bgf5 Kf3 Ra7 Rh8 f8Q Kf2 Qe7 Qf7 Raa4 Ra8 Ra2 Qe8 f7 Ra7 Qf8 Qe7 Qfc8 Qe8 Q8c5
N7/1pr2p2/1q2bP2/nkP3bR/2B1n2q/1p1NR3/QrN1KN2/1RN3Qb b - - 0 1 legal: proof: e4 d5 g4 a5 d4 c5 dxc5 e5 b4 h5 gxh5 axb4 Bb2 Be6 exd5 Bc8 Bd4 exd4 f4 Kd7 h4 g5 c4 d3 a4 d2+ Ke2 g4 h6 g3 h7 g2 c6+ Kc7 a5 b3 f5 Nf6 c5 Bd6 a6 Nbd7 h5 Ng8 f6 Rb8 h6 Nb6 a7 Bf8 Rh3 Bd7 a8N+ Kc8 c7 Bf5 d6 Kd7 c8N Kc6 d7 Qc7 d8N+ Kb5 Nc6 Na4 Re3 Qa5 Nb4 Ne7 Nd3 Nc6 Qe1 Rg8 h8R Be6 h7 Qb6 Qf2 Na5 Nd6+ Ka6 Ne4 Bh6 Qg3 Rbc8 Na3 Bg5 Nef2 Rc7 Nc2 Kb5 Rb1 Rg6 Qg4 Rh6 Qd4 Rh3 Qb2 Rh2 Qa2 d1B+ Kd2 Bdg4 Ne2 g1Q Nec1 Bf3 Bg2 Bc6 Bd5 Qh1 Ke2 Qe4 Rf8 Qc4 h8Q Qh4 Qg7 Rg2 Rh8 Nc3+ Ke1 Rh2 Rh5 Ne4 Kf1 Bh6 Qg1 Bg5 Nh1 Rd2 Nhf2 Re2 Na1 Rb2 Nc2 Qa7 Ke1 Qb6 Ke2 Nd2 Bg2 Be4 Bf1 Bh1 Bg2 Qg4+ Bf3 Qh4 Bd5 Ne4 Bc4+
1Qk5/1R1r1b2/2p1RqQ1/R2n2b1/P1B1nn1R/BK3P1R/1pnp3r/3B2N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 gxh5 Rh7 exf5 Qb6 c6 Qd8 c7 Rh8 c4 d6 c5 Be6 c8B Ra7 c6 Nh6 c7 Ng8 Nd2 Bc4 Ndf3 Ba6 Ne5 Ra8 Nc6 bxc6 Kd2 g5 Kc2 e5 h4 b3+ Kc3 g4 a4 b2 h6 e4 f6 e3 h7 e2 h5 e1N h6 d5 Rh5 g3 Qc2 d4+ Kb3 g2 Bg5 d3 Bg4 d2 c8R Ne7 Bd1 Kd7 f7 Ra7 f3 Nd5 Bc4 Be7 Qg6 Nc2 f8Q Bf6 Bf4 Bg5 Bd6 Qf6 Ba3 Bb5 Rb1 Na6 Rb8 Rc7 Rb7 Nc5+ Ka2 Ne4 Kb3 Ba6 Qd6+ Kc8 Qg3 Re8 h8R Rd7 h7 Red8 Re8 Bb5 Re6 Rh8 Rc1 Ba6 Rh4 Bb5 Nh3 g1N Qe5 Ne2 Ng1 Nef4 Rh3 Rhd8 h8R Re8 R8h4 Rh8 Qf7 Nce3 Rc3 Nc2 Qg6 Rh5 Bd3 Ba6 Rc5 Rh8 Ra5 Bb5 Ka2 Bc4+ Rb3 Rg8 Re7 Nb6 Qh6 Bf7 Bc4 Nbd5 Rb7 Rg7 Qh5 Bh6 Kb3 Rg2 Qg6 Rh2 Re6 Bg5 Qb8#
1bn2R2/p2B2N1/6pR/B2b1rrq/1b1Q3n/Q2P2k1/3P2Bp/K2B1bRB b - - 0 1 legal: proof: f4 b5 h4 d5 a4 e5 axb5 g5 hxg5 exf4 Nh3 d4 Ng1 d3 cxd3 Ke7 Na3 Kd7 Nb1 Ke8 g4 Nc6 g6 Bb4 g5 Be7 g7 Bf5 g6 Bc8 Nc3 Qd6 Nd5 Nf6 g8B Bf8 g7 Qd8 Ne7 Nb8 Ng6 fxg6 b4 Kd7 e4 Kd6 b6 Ke5 b5 h5 b7 c5 b6 f3 Qb3 Kf4 Kd1 h4 Kc2 f2 Kb2 c4 e5 h3 e6 Qc7 e7 Ng4 e8B Nh6 Bd5 Bd6 g8B Nd7 b8Q Nf5 b7 Nh4 Qa3 Qc5 Nf3 Rh5 Nd4 Rg5 Ne6+ Kg3 Bfg2 f1B Ng7 Nb6 Bd7 c3+ Ka2 c2 Bb2 c1B Bc3 Bb2 Ba5 Bbe5 Bde4 Bc3 Bb3 Bb4 Bd1 Bf4 Rg1 h2 Qe5 Qb5 b8R Bb7 Rf8 Nc8 Qd4 Bb8 Rc1 Qf5 Ka1 Bd5 Rh8 Qg4 Rh6 Qh5 Rc6 Bc7 Ra6 Rb8 Bef3 Rb5 Rf6 Bb8 Rf4 Be4 Rf6 Rbf5 Rf8 Bd5 Bh1+ Kh3 Bfg2+ Kg3 Bc6 Be4 Bb5 Bd5 Bd7
2N1Rq2/2b2rBQ/3B2P1/1rN1r1n1/B1pq1qN1/3Q4/K2P1pbp/1N3N1k b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 a4 e5 axb5 e4 h4 Ba6 f4 exf3 h5 Nd7 Ra4 Bc8 Rf4 gxf4 b4 Ne5 g5 Ng6 hxg6 Bg7 Na3 Bh6 Nb1 Bf8 e4 Kd7 b6 Kd6 g7 Ke5 b5 f5 d6 h5 b7 a5 b8N c5 b6 c4 g6 a4 b7 a3 d7 a2 Bg2 a1Q Rh4 Qd4 Na6 Nf6 b8B+ Bd6 g8N Qf8 d8Q Bb7 Nc5 Ra5 Ne7 Rb5 Bb2 Bc7 Nc8 Nh7 Ne2 Ng5 Ng3 f2+ Ke2 Bc6 Qh1 f3+ Kd1 f1Q+ Kc2 f2 Bh3 f4 Bd7 f3 Qh2 Qh3 Nf1+ Qg3 Rh3 Kf4 e5 h4 e6 Bd5 e7 Rh5 e8N Bc6 Nf6 Ba8 Ne3 f1R Nfg4 Bd5 Qh1 Ba8 Rh2 h3 Re2 Qh2 Bc3 Kg3 Ba1 Qf2 Be8 Qdf4 Qd3 h2 Bg7 Qg1 Bd7 Rf2 Nf1+ Kh3 Re8 Be4 Ng3 Rf1 Bc6 Qd4 Qg1 Rf2 Qe1 Kg2 Nf1 Bd5 Qe7 Kh1 Bd7 Re2 Kc1 f2 Qf7 Rb7 Ba4 Bg2 Qg8 Re5 Qh7 Rb6 Kc2 Rf6 Kc1 Rf7 Kc2 Qdd6 Kb2 Qdd4+ Ka2 Rh3 Qc2 Rb3 Qc3 Rb5 Qd3 Bd8 Bd6 Ba5 Ka3 Bc7 Ka2
4NQ1b/q2R4/N1P2P2/1rpqrnRk/1n4RB/2Np2R1/1p5K/1r1nR1Q1 b - - 0 1 legal: proof: c4 b5 g4 c5 e4 h5 gxh5 f5 exf5 Nh6 d4 Ng8 d5 Bb7 b4 Bc6 dxc6 a6 Bd3 Rh6 Bc2 Rh7 Ba4 bxc4 b5 Rh6 b6 Rh8 Bb5 axb5 Kf1 Kf7 Kg2 d5 f4 g5 h4 e5 a4 b4 a5 b3 f6 c3 a6 c2 f5 d4 h6 e4 h5 g4 b7 d3 a7 b2 h7 g3 h6 e3 Nc3 e2 Nh3 e1R Ra4 Qa5 Nf4 Na6 b8N Nc7 Na6 Rae8 a8R Bg7 Ne6 Ne7 Rg4 Ncd5 Ra7 Nb4 Bg5 c1N Bh4 Nca2 Nec7 Rb8 Qb1 Re5 Re1 Rb5 Ne8 Rg8 Qa1 Bh8 Rd7 Qa3 Kh1 g2+ Kh2 Qb3 Rg3 Qd5 Qc1 Rg4 Qe3 Rf4 Qg1 Rf1 Rg4 Nc2 Rg3 Nab4 Rg5 Ne3 Rg3 Bg7 h8R Nd1 Rg8 Bh8 h7 Ne3 Re2 Rb1 R8g5 Nd1 Re4 Nc2 Reg4 Nb4 Qh1 Bg7 h8R g1Q+ Kh3 Qe1 Qg1 Qe2 Rhh5 Bh8 Rh6 Qef3 Kh2 Qa2 Rhg6 Qfd5 Re4 Qa5 Re1 Qc7 R5g4 Qb8 R6g5 Qa7 Ng7 Kg8 f7+ Kh7 f8Q Kh6 f6 Nf5 Qg8 Ra1 Ne8 Rb1 Rgg7 Kh5 Qf8 Re4 R7g6 Re5 R6g5#
R1N2b2/3P4/5qb1/2Q1q1N1/Q3prQ1/1BB3P1/BBnp1p1b/nq2kB1K b - - 0 1 legal: proof: e4 b5 d4 d5 exd5 g5 h4 gxh4 a4 c5 axb5 Bb7 d6 Bc8 f4 a5 b4 e5 d5 e4 Ra3 Ra7 Rd3 Re7 Rd4 Re5 fxe5 cxd4 Kf2 Kd7 c4 f5 b6 h5 c5 a4 b7 a3 b5 h3 b6 f4 Rh2 f3 Nd2 d3 Bb2 h4 Nc4 d2 Qa4+ Nc6 b8B a2 b7 a1B g3 Ne7 Ba7 Nf5 b8Q Nd4 Qbb4 Nc2 Rh1 h2 Nh3 Qa5 Ng5 h3 Bb8 Rh4 e6+ Kd8 d7 Ke7 Qbb5 N6d4 d6+ Kf6 d8Q+ Kf5 e7 Kg4 e8B Bf5 c6 Nb3 c7 Bg6 Bf7 Qc3 d7 Qf6 c8B Qe5 Rg1 h1Q Nb6 h2 Bb7 Qf6 Bc3 Bb2 Ba6 Nba1 Nc8 Bba3 Bbe5 Bac5+ Bed4 Ba7 B1c4 Qe5 Rb1 Bb6 Rb3 Qb1 Qc5 h1Q Ra3 Qb2 Qe8 Qhb1 Ba2 Ba7 Qd8 Qb6 Qde7 Qbf6 Bfb3 Bb6 Qg7 Ba7 Nf7 Kh3 Bb2 Rf4 Bf1+ Kg4 Kg1 Bb6 Qc7 Ba7 Kh1 Bac5 Bdc3 Bg1 Ne7 f2 Qc5 Kf3 Nc8 Bh2 Qac4 Qfd6 Ra8 Qdf6 Qa4 Ne1 Bg2+ Ke2 Ng5 Nec2+ Bf1+ Ke1 Qg8 Qb8 Qe6 Qbe5 Qg4
2r2QNr/K1pk3P/n2RNr2/1qpP1b2/3q4/4pqB1/2Q1Q1Qb/1Q1RR3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d6 g4 b4 c5 dxc5 f6 b3 axb3 Qd3 b4 Qd5 b5 Qd8 f4 h5 f5 Nd7 g5 Bb7 Bh3 Bc8 Bg4 Ne5 g6 Nf7 gxf7+ Kd7 Ra6 hxg4 Ra2 Nh6 Ra1 Ng8 Ke2 g5 Kd3 a5 Kc4 e5 d4 a4 b4 e4 h4 a3 d5 g3 h5 a2 b6 g4 Kb5 g2 b7 g3 b8R Kd6 h6 Ra4 h7 Bb7 Nd2 Ra8 Qc2 Be7 f8Q Bc8 f7 Ra4 f6 Be6 Qg7 Ra8 f8Q Bh3 f7 Ra7 Qe8 Ra6 f8Q Bf5 Ne2 g1Q Nf4 g2 Ne6 Qd4 Rd1 g1Q Qg2 Nf6 Rb1 Rc6 Rb6 Qge3 Ka6 Qd7 b5 Qf3 Ka7 a1R+ Ra6 Ra3 b6 Rb3 b7 e3 b8Q Rcb6 Qh5 Qb5 Ne4+ Kd7 Bd2 Bd6 Be1 Bh2 Bg3 Rb2 Re1 Rb3 Rbd1 Rb1 Qa8 Rb8 Qb7 Rc8 N4g5 Ra1 Nf7 Ra4 Nh6 Ra2 Qd3 Rf2 Ng8 Qff4 Qa8 Ng4 Ra3 Ne5 Qc2 Bg4 Ra6 Nd3 Qb1 Bh3 Qe2 Nb4 Rb6 Qfe4 Kb7 Rf6 Qaa2 Qf3 Qac2 Bf5 Ka7 Na6 Rd6+
1Q2r1q1/Qp1k4/pqqN2P1/1b6/1Q3BKR/1Pb1Q1p1/1n4QB/3n1NbN b - - 0 1 illegal: No proof kernel
2R4R/P2qRknR/1rPpbpN1/1p1Q1r2/4Q1n1/1K6/1R5n/1QNnBn2 b - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 f4 g5 h4 e6 hxg5 Nf6 g4 Be7 g6 Ng8 g5 Bd6 Bh3 Be5 Bf5 exf5 fxe5 Qe7 Rh4 Qf6 Rh1 Qd8 Kd2 h5 a4 b5 c4 f4 Kc2 d6 e4 f6 a5 f3 e6 f2 e7 f1N e5 h4 g7 h3 a6 h2 a7 Rh5 g6 Nd7 Nh3 Nb8 Ra2 Bg4 Nd2 Qc8 Nf4 Rh7 Nb3 Na6 Bd2 Rh5 Be1 Nh6 Qd3 Rg5 g8Q+ Kd7 g7 Rb8 Ng6 Nc7 Nc1 Ne8 Qgd5 b3+ Kc3 b2 g8R Ng7 Kb3 Qc6 Rh8 Rb6 Qc2 b1N Rb2 Nhf5 Qcd3 Nh4 Qc2 Nc3 Qb1 Nf3 e8Q+ Kc7 e6 Nd1 e7 Qd7 Qf8 Rh5 e8R Bf5 Qe7 Bg4 Qee4 Be6 Rg1 h1N Rgg2 Rf5 Rgh2 Nhf2 R2h7 Qe7 c6 Qd8 c5 Kc8 c7 Kd7 c8R N3h2 Ref8 Nfg4 Ne5+ Ke7 c6 Qd7 Rfd8 Rb8 Ng6+ Kf7 Rde8 Rb6 Re7+
1bR3r1/bQ3NB1/2B1P3/2BBnK2/3PpQ2/R2qpb1p/3Q3n/2bnB2k b - - 0 1 illegal: No proof kernel
1Q4R1/r1n1PN2/2P2Q2/1rb1QpB1/1pp1r1Q1/2b2bK1/3RN3/QkrN3q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 b4 c4 Nc6 Bg2 Nd4 Bc6 Nb5 axb5 Ke7 Bd5 d6 c6 Ke8 Be6 d5 c5 Bd7 Bf5 Be6 Bd3 Bc8 Bc4 dxc4 Kf2 Ke7 d4 Kf6 e4 g5 h4 a5 d5 Ke5 d6 f3 h6 g4 d7 a4 c7 f6 h5 a3 b6 a2 h7 Ra7 c6 Ne7 b7 Nd5 b8Q Bc5+ Kg3 f2 h6 f1R Ne2 Rf5 Bg5 Re8 h8Q Re6 Qg7 Qh8 d8N Bd7 c8Q+ Nc7 h7 Re7 Kh4 g3 Rg1 g2 Kg3 Be8 Qa6 Bh5 Nbc3 Bf3 Qd7 Re8 Rad1 a1B Rd2 Re6 Nd1 Bc3 Qa1 Re8 Rh1 Re6 Rh2 g1R+ Rg2 Re8 Nb2 Rc1 Nd1 Qf8 Qgf7 Qh6 h8Q Qh1 Qhh5 Rf4 Qdg4 f5 Qh2 Re6 Qf8 Rd6 Rg1 Rd5 Rg2 B5d4 Qf7 Rb5 Qf8 Bc5 Nf7+ Ke6 e5 Re4 Ra2 Kd5 e6 Na6 e7 Nc7 Nf4+ Kd4 Ne2+ Kd3 Qhh8 Bb2 Qe5 Kc2 Qfh8 Bd4 Qhf6 Bc5 Ra3 Bbd4 Rd3 Bc3 Rd8 B5d4 Rh2 Bc5 Rhh8 Qf1 Rhg8 Qh1 Qa3 Kb1 Rd2 Ne8 Qa6 Nc7 Qa1+
2n3BQ/R6K/4rb2/N5qp/1p1pQPr1/kbq4B/1PR2RR1/4RqBq b - - 0 1 illegal: Other
2b1kbQr/KR3P1p/nN5B/NN3Pn1/1R4R1/q1pNn2p/1N6/2Qq2n1 b - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b5 a4 Qd7 axb5 Qd6 h4 gxh4 f4 Kd8 f5 Ke8 f6 Qd8 Be2 a5 Bg4 Ra6 Bf5 Re6 b6 Re5 Be6 Rf5 exf5 fxe6 Kf2 c5 Ke3 h3 b4 c4 Kd4 c3 Kc5 a4 g4 a3 d4 a2 g5 e5 b5 e4 d6 e5 d5 e3 g6 e4 b7 e2 b6 e1N g7 e3 Nd2 e2 Ngf3 Nh6 g8Q Nf7 Ne5 Bd7 Rg1 Bc6 Rb1 a1N Ndc4 Qc7 Bh6 Ng2 Qc1 e1Q Nd3 Nh4 Rb4 Qe6 Ncb2 Ng6 Rgg4 Ne7 d7+ Kd8 Kd4 Na6 b8R+ Nc8 b7 Qcd6 Kc4 Kc7 d8N Ng5 Nf7 Qd8 Nd6 Kd7 Nb5 Qee7 d6 Na7 Kd4 Nc2+ Kc4 Nc7 Kc5 Ne3 Kb6 Bd5 Na4 Nc6 Nab2 Ne5 Ka7 Kc6 d7 Be6 Bg7 Na6 Bh6 Qa5 d8N+ Kd7 Nc6 Qad8 Na5 Ke8 Rc8 Bd7 b8N Nef3 Rc7 Bc8 Rb7 Ng1 Nd7 Qc5+ Nb6 Qd7 Rbf4 Qa3 Rb4 Qd5 Ra4 Qdb3 Rab4 Qd1 f7+
2R1RQ1N/b1QbRPpK/5P2/1qn2p2/1k1R1B2/bq1r4/p3NR1N/3b3n b - - 0 1 illegal: No proof kernel
1QN1qb2/1p1Pp1q1/2B1K3/1b5r/nB1QQ1Q1/1kb5/1bRP1p2/n2Q1R1B b - - 0 1 legal: proof: e4 d5 f4 a5 c4 g5 fxg5 Nd7 cxd5 Nb8 b4 axb4 d6 Bd7 Qh5 Bf5 Qd1 Bc8 g4 h6 g6 Bf5 Nc3 Bc8 g5 h5 Nd5 Ra6 Ne3 Ra5 Ng4 Rd5 exd5 hxg4 Kf2 Kd7 Kg3 f5 Kf4 c5 Ke5 f4 a4 b3 h4 b2 a5 b1Q g7 g3 a6 c4 h5 g2 a7 f3 a8Q c3 h6 f2 g6 c2 h7 Qb3 Ra2 Qb4 Ba3 c1B Nf3 g1B Nh4 Qb5 Nf5 Qe8 Bb4 Qd3 Rc2 Nh6 g8Q Na6 g7 Nc5 Bg2 Na4 Qb8 Qc4 Bf3 Qg4 Be4 Kd8 d7 Bb2+ Ke6 Bh2 Re1 Bhe5 Rf1 Bec3 Bh1 Qd4 Qe5 Ng4 Qe4 Kc7 d6+ Kb6 Qf7 Kb5 g8B Kc4 Qh5 Ne3 Qhg4 Kb3 Bf7 Rg8 h8Q Rg5 Bg6 Qd8 Be8 Qg7 Qh2 Rh5 Qhe5 Ng2 Q5d4 Ne1 Kd5 Qc7 d8Q Bd7 Qb8 Bb5 Ke6 Qd8 Bc6 Qc8+ d7 Qe8 Rc1+ Nc2 Nd6 Qh7 Nc8 Qg7 Qdf3 Na1 Rc2 Rg5 Qfe2 Rh5 Qd1
1BB1B2R/P2B4/P3Qb1p/b1kN1Qr1/p3Kn2/n7/2rQ2Np/2bb1n1B b - - 0 1 illegal: No proof kernel
2N1n1B1/1Q6/5Pnn/pRp2B1q/Q1p3RR/BR2R2n/q1PK4/k1n2br1 b - - 0 1 legal: proof: e4 a5 f4 b5 h4 g5 a4 f5 axb5 fxe4 g4 d5 f5 Nf6 Na3 Ba6 Nc4 dxc4 Bd3 Bh6 Bf1 Ng8 f6 Bc8 Bd3 Ra6 Ra2 Rc6 Bf1 Rc5 Ra1 Rf5 gxf5 g4 Bd3 Bd7 Bf1 Bg5 hxg5 Bc8 b4 Kd7 d4 Kd6 d5 Ke5 f7 h5 f8R h4 b6 e3 b7 h3 f6 e2 d6 g3 b5 h2 b6 g2 d7 Na6 b8R Nh6 g6 Rg8 Kd2 Kd4 g7 e1N b7 Nd3 Re8 Ne5 Rb1 Ng6 Ke2+ Kc3 Nf3 g1N+ Ke1 Nh3 Rb5 c5 Nd4 e5 Qe2 e4 Ba3 e3 Nc6 Qb6 d8R Nc7 Ne7 Bg4 Qd1 e2 Qd7 Be6 Rg1 h1Q Nc8 Qh2 Re7 Ne8 Rg4 Bd5 Qc6 Bg2 Rdd4 Qe5 Qd7 Qh5 Rh4 Qc6 Rdg4 Qf3 Re5 Qe3 Re6 Qd4 Re3+ Qd3 Bb4+ Kb2 Ba3+ Ka1 Rb3 Qd4 Qa4 Qb2 Kd2 e1N Bd3 Bf1 Bf5 Nd3 Rb5 Nc1 Rbb3 Rh8 g8B Qb1 Ra8 Qb2 b8Q Qa2 Qb7 Rh7 Ra6 Rg7 Rab6 Ne5 Rge4 Rg1 Reg4 Ng6 R6b5
3q1nq1/1R1Brqpq/N1R1qrRn/2pP2PK/1p2R3/2Q1R1N1/Q5N1/5k2 b - - 0 1 legal: proof: g4 a5 c4 d5 cxd5 h5 b4 axb4 e3 h4 Bb2 Ra7 Be5 Ra8 Bg3 hxg3 d4 Bf5 e4 e6 f3 Bd6 e5 Be4 exd6 e5 Qd3 Bf5 Qe2 e4 Qc2 e3 Qd1 Be4 fxe4 Rh4 Ke2 Rh7 Ke1 Rh8 g5 Kd7 h4 Kc8 Ke2 Kd7 Kf3 Ke8 Kg4 Kf8 a4 b5 h5 g2 d7 Ke7 d6+ Ke6 a5 b3 h6 f5+ Kh5 c5 h7 f4 a6 b4 a7 f3 e5 Kf5 e6 Kf4 Rh3 f2 e7 e2 e8R e1Q d5 b2 Qd2+ Qe3 Nc3 b1Q Nge2+ Kf5 Nd1 g1Q Qc3 Qde7 d8Q Ke4 d7 Qa2 Qa5 Qa4 d8R Nd7 Rc8 Qa3 Rh4+ Kf3 Bh3 f1Q Ng3 Nh6 Qa4 Rb8 a8N Rf8 h8R Rb7 Nc7 Ra7 Bf5 Kg2 Qa5 Q3e4 Ne3+ Kf2 Be6 Qh7 Ng2 Qa6 Rg8 Qgf1 Re1 Qa4 Re3 Q4c6 Rd4 Qa8 Rde4 Kg1 Qa2 Qff6 Ne2+ Kf1 Rh8 Qb6 Na6 Qe5 Rc7 Rf3 Rc6 Qf7+ Kh4 Rc7 Bg4 Ra7 Ree6 Qbc7 Rg6 Rf6 Rb8 Qfg8 Ng1 Nf8 Ne2 Qcf7 Kh5 Re7 Rb7 Qd8 Bd7 Qee6 Ng3+
4n3/2Rpbb1n/1QPR2RP/Np4r1/1Q2k1r1/nRN1p3/p1qRB2K/2Q5 b - - 0 1 illegal: No possible last move
6NN/2n2q1Q/k2NPbp1/8/3rBN1p/Pb2rQ1p/qpNR1B1n/B2K4 b - - 0 1 legal: proof: g4 a5 b4 d5 bxa5 e5 c4 g6 cxd5 e4 h4 e3 a3 Qe7 g5 Qd6 fxe3 Qf6 e4 Qd8 e5 Na6 h5 gxh5 g6 h4 g7 Bb4 Rh3 Bd6 Rg3 Bf8 Rg6 fxg6 Qb3 Kd7 Bh3+ Ke8 Kf1 Qf6+ Nf3 Bf5 Bb2 Rc8 Nc3 Bc2 Re1 Qf7 Bc1 Qe7 Nb1 Bd3 Qd1 Qd8 Kf2 Rb8 Rh1 Bf5 Ng1 Bc8 Bf1 Ra8 Ke1 Nb8 d4 Kd7 e4 b5 d6 Kc6 d5+ Kb7 e6 c5 d7 h5 e7 h3 e8N c4 e5 c3 d6 h4 a6+ Ka7 e6 b4 Bg2 c2 Nf3 b3 Nd4 Nf6 g8N Nd5 Qh5 Bg7 Be3 Bb7 Bf2 Ne3 Be4 Qf6 d8N Ng4 d7 Bd5 Nf7 Nh2 d8B c1Q+ Ke2 Qc3 Qh7 Qb2+ Kd1 Qa2 Nc3 Qf3+ Nce2 Bf6 Ned6 Qf5 Qg7 Rh5 Qh7 Qf4 Rg1 Re5 Rg2 Qf5 Be7 Kb6 a7 Na6 Nf4 Rd8 a8Q Nc7 Qc6+ Ka5 Qc3+ Ka6 Qf3 Bc4 Nh8 Bd5 Bb1 Re3 Be4 Bc4 Nc2 Bd5 Nc8 Rd7 Bb4 Bc4+ Bd2 Rd4 Nd6 Bd5 Kc1 Bc4 Bc3 Bd5 Ba1 Bc4 Nd3 b2+ Kd1 Bd5 Be1 Bb3 Rd2 Bd8 Nf4 Qf7 Bg3 Bf6 Bf2
3q1n2/1pB2p1N/2r4p/1K2Pr2/3kp1Pn/1B1Q4/R1QN3Q/bbBQ2qQ b - - 0 1 legal: proof: b4 a5 h4 axb4 e4 d5 a4 g5 hxg5 c5 Ra3 e5 f4 c4 Rb3 cxb3 exd5 e4 Nh3 Qf6 Ng1 Qe5 fxe5 Ra7 Be2 Ra6 Bf1 Ra8 d4 Ke7 Kd2 b2 g4 b3 Kc3 Ra7 Kb4 Ra6 c4 Be6 c5 Bd7 g6 Bh6 g7 Bc6 d6+ Ke6 d5+ Kd7 a5 Bg5 Nd2 b1Q Ngf3 b2 Bc4 Ba4 c6+ Kc8 d7+ Kc7 Rh2 Qc2 Bb3 Be3 Ng5 Ne7 g8Q b1Q Qh1 h6 Nh7 Qd1 Qe8 Rg8 d8B+ Kc8 d6 Bd4 c7 Rg5 Qb5 Nd7 Qd5 Ba1 Qd3 Rc6 a6 Nf5 a7 Nf8 a8Q+ Kd7 Qa7 Rh5 Qag1 Nh4 Rg2 Bb5 Qgh2 Rf5 Rf2 Bc4 Re2 Ke6 d7 Qg1 c8Q Qd4 Ka5 Kd5 Bc7 Kc5 d8Q Be6 Qg5 Qd8 Qgf4 Bc4 Qff1 Bb5 Qd1 Ba6 Qdf3 Bd3 Rf2 Kd4 Qfe2 Bc2 Kb5 Qa2 Qef1 Bb1 Qfe2 Qa7 Qd7+ Rd6 Qc6 Re6 Qcc2 Rc6 Qa2 Qf6 Nf3+ Kc3 Qef1 Qe3 Rb2 Qg1 Nd2 Kd4 Qfh3 Bc2 Qb1 Qd8 Ra2 Bc3 Qb2 Bb1 Qbc2 Ba1 Qhd3+
2QR1KR1/1n4p1/5BQ1/1PQ1R2p/b3p1nq/3Q1rbP/n4Nbp/N3Q2k b - - 0 1 illegal: No possible last move
1Qk3N1/nq1RB2q/2N5/pQbPNbN1/3b2p1/3n2KN/1PQ3pp/3r3R b - - 0 1 legal: proof: c4 e5 d4 b5 a4 f5 axb5 d5 cxd5 e4 g4 fxg4 e3 Bb7 Qe2 Ba6 Qd1 Bc8 h4 a5 Qc2 g5 Qd2 g3 Be2 g4 Bd3 exd3 Qd1 Ra6 Qe2 Rg6 Qd1 Rg5 hxg5 Bd7 Qe2 Be6 Qd1 Bc8 f4 Kd7 d6 c5 e4 h5 b6 c4 f5 h4 g6 g2 Kf2 h3 f6 h2 e5 d2 g7 c3 b7 c2 e6+ Ke8 e7 Kd7 f7 Nf6 g8N Qc7 Na3 Rh7 Nh3 Rh4 Kg3 Nc6 b8Q Rh7 Nc4 Qb7 Ne5+ Ke6 e8N Nd5 d7 Ndb4 Nd6 Nd3 Ne4 Bc5 f8Q Na7 Qe2 d1Q Bg5 c1B Qc2 Bd2 Be7 Qb1 Qf1 Bc3 d8N+ Kd5 Qfd1 Bf5 Ndc6 Rh6 Neg5 Rd6 Qd8 Rd7 Qb6 Rd6 Qb5 Rd8 Bf6 Kd6 Be7+ Kc7 Qdd2 Kc8 Qf4 Qa2 Rad1 Qf7 Rd2 Bg6 Qf6 Qh7 Qd6 Bf5 d5 B3d4 Rf2 Re8 Rff1 Bg6 Rf7 Bf5 Bf8 Re6 Rd7 Rf6 Be7 Re6 Nef7 Re1 Nfe5 Rd1 Qb8+
b1r3Q1/1N1n2p1/b1k3n1/RBp4R/4P1BR/3Q1Kbp/pPqq4/B1BB4 b - - 0 1 illegal: Other
1r4Rq/pn2pB2/r3pN1B/5p1Q/b5P1/2n1P2K/k1BR1Bn1/1BQ2Qq1 b - - 0 1 illegal: No possible last move
3Bk3/R3pB2/B3B3/3qPr2/pRBp4/P3n1Qn/K1N3rp/Q2qrnR1 b - - 0 2 legal: proof: e4 f5 d4 fxe4 b4 g5 f4 c5 bxc5 Bg7 Nc3 Qc7 Nb1 Be5 dxe5 Qd8 g4 b6 f5 Bb7 Nc3 Bc8 Nce2 Ba6 Nf4 gxf4 g5 Be2 h3 Bg4 hxg4 Kf7 Nh3 Kf8 Ng1 Ke8 Kd2 d5 Kc3 a5 Kb2 h5 c4 d4 c6 f3 g6 e3 f6 h4 c7 e2 c8B e1Q f7+ Kf8 c5 b5 g5 h3 c6 f2 c7 b4 Bd2 h2 Nf3 b3 Bca6 Rh5 c8B Rh7 Bfc4 f1N B8e6 Nc6 Rg1 Nh6 a3 a4 Rb1 Qd6 Ba5 Ng4 Bd8 Rg7 Qc1 Qd1 Ne1 Nge3 Nc2 Rc8 Ka1 b2+ Ka2 Qd2 Qe1 Qd5 Qd1 Rg8 Qe1 Qd1 Qg3 Kg7 f8R Rb8 Re8 Rf8 Qe1 Rf5 Rh8 Rc8 Rh6 Kf8 g7+ Ke8 g8B Rb8 g6 Rb3 g7 Rc3 Ra1 b1R Rhg6 Rc1 Rb1 Rd3 Rb7 Rd2 Ra7 Re2 Qc3 Rg2 Qa1 Nb4+ Kb2 Nd3+ Ka2 Nf4 Rg3 Ng4 Rb3 Nge3 Rb4 Q1f3 Bh7 Nh3 g8Q+ Rf8 Qg5 Re1 Qg3 Qd1 Bhg8 Rf5 Bgf7+
N3Bn2/3pp2R/2N1r3/pr1r1p1n/3QP1bB/BrkB1P2/B4QKN/5r2 b - - 0 2 legal: proof: d4 b5 g4 f5 b4 a5 a4 g6 g5 Bg7 d5 Bf6 gxf6 Bb7 Ra3 Ba6 Rg3 Bc8 Rg4 h5 axb5 hxg4 d6 cxd6 b6 d5 b5 d4 Qd2 Qc7 Qd3 Qa7 Qd1 Qa6 bxa6 Kf8 Be3 Kf7 Bc1 Ke8 h4 Kf7 c4 Ke6 e4 Ke5 b7 d3 a7 Kd4 f7 g3 f8Q g5 h5 g4 c5 g2 c6 g3 h6 Nf6 h7 Rg8 h8B Rg4 c7 Rf4 Qd8 Rh4 Nf3+ Kc4 Na3+ Kc3 Nh2 g1R f3 g2 Kf2 d2 Bc4 Re1 Ba2 g1R Nc4 Rh5 Ba3 Na6 b8N Re3 Nb6 Rh6 Nc6 Rb8 a8B Rf1+ Kg2 Nc5 Qe1 Rb7 Qf2 d1R Bf7 Rd6 Be8 Rd5 Bg7 Rb8 Bh8 Ba6 c8B Bd3 Ba6 Ne6 B8b7 Bb5 Na8 Nf8 Qb6 Be2 Bc4 Red3 Qbe3 Rb5 Qc5 Rd5 Ba6 Bd3 Ba2+ Bc4 Ne5 Nh5 Bf6 R8b6 Bh4 Rhe6 Qc7 Rb3 Nc6 Be2 Bd3 R6b5 Rg1 Rd1 Qca7 Bf1+ Kh1 Re1 Rg7 Reb1 Rh7 Bh3+ Qf1 Bg4 Kg2 Ra1 Qff2 Rf1 Qad4+
1R3b1K/7p/P3pp2/N2R1q1r/kb2bp1P/1b2NQ2/R1rq1R2/1RB1N2Q b - - 0 1 legal: proof: c4 d5 cxd5 a5 d4 g6 e4 e6 b4 axb4 f4 Ke7 e5 Nh6 d6+ Ke8 d5 Rg8 f5 Nc6 f6 Ne7 Bd3 Rh8 Be4 Bg7 Bf5 Kf8 fxe7+ Kg8 Bd3 Bf8 Bc2 Kg7 d7 Nf5 Bd3 Nd6 exd6 Kf6 Bf5 gxf5 Ke2 Ke5 Kd3 b5 e8Q c5 a4 f4 h4 b3 g4 b4 g5 b2 a5 b3 g6 Ra7 a6 Rg8 g7 Qc7 d8R Qa5 d7 Kd6 Ke4 c4 Ra2 Kc5 Ke5 Kb5 Kf6 c3 d6 c2 Qf3 Rh8 g8R Bb7 Nd2 b1Q Nf1 b2 Ne3 Bd5 Rg2 Qd2 Rf2 Rb7 Rb8 Bb3 d8N+ Kb4 d7 Rb5 Nb7 Rh5 d8R Rg8 Rd5 Rg2 Qc6 Rh2 Raa5 Rg2 Rab5+ Ka4 Na5 Bb4 Rh3 Rh2 Kg7 f6 Qh1 Qe1 Rdd2 Ba3 Ng2 Ba2 Rf1 Bf8+ Kh8 Qe3 Nf3 Qc3 Ne3 Bb3 Rg1 Rg2 Rh2 Qd3 Re2 Qd5 Bd2 c1B Qb7 Qbf5 Rd1 b1B Ne1 Bca3 Bc1 B3a2 Rb3 Bab4 Rbb2 Bd3 Rb1 Bb3 Red2 Qd7 Qf3 Be4 Rdb2 Re2 Rf2 Rc2 Rdd2 Qd4 Rd1 Qc3 Rd5 Qd2 Ra2+
NrR2R1R/1p2Np2/3pp1nn/5P2/6qk/pN2QP2/KQRnR2B/4bb2 b - - 0 1 legal: proof: f4 h5 g4 c5 gxh5 c4 b4 c3 b5 a6 dxc3 Nh6 c4 Ng8 c5 Qb6 Kd2 Qc7 Ke1 Qd8 Na3 axb5 Nb1 Ra6 a4 Rd6 Kf2 Rd3 Ke1 Rf3 exf3 Rh6 Bb2 Rh7 Bc1 Rh8 a5 Qb6 Bc4 Qc7 Bb3 Qd8 Ba4 bxa4 Kd2 g5 Kc3 a3 Kb3 d6 h4 e6 c4 Ke7 a6 Kf6 c6 g4 a7 g3 a8N g2 h6 Kg6 h5+ Kf5 c7 Nc6 c5 Na7 h7 Bd7 c8R Qa5 h6 Nb5 c6 Be7 c7 Nf6 Qe2 Qd2 Rh2 Kg6 f5+ Kg5 Nc3 Bd8 Nd5 Ng8 Ne7 Nc3 Ra2 Qf4 Rc2 Nb1 Ka2 Nd2 Qe3 Bb5 Ne2 g1N Nd4 Nh3 Re2 Kh4 Nb3 Qg4 Rb8 Nf4 c8R Bb6 Bb2 Bd3 Be5 Ng6 Bh2 Ba5 Rf8 Nf1 Rbd8 Be1 Rdc8 Nd2 R2c7 Nf6 Rc2 Rg8 h8Q Ba6 Rg2 Bf1 Qg7 Rh8 h7 Ng8 Re2 Nh6 Qb2 Qf4 Rg8 Ne4 R8c5 Nd2 Rb8 Rd8 h8R Qg4 R5c4 Rd7 Rbe8 Rd8 Ref8 Rb8 Rcc8
5qN1/pp1K2bR/b2R2Q1/2b1P1kp/1QQ2Nrr/4pP2/p2B4/1Q2n1QR b - - 0 1 illegal: No proof kernel
2r1qR1R/BN2bQ2/Q7/1k2P1Q1/1p1p2Kn/1pRp1P1Q/pN1Qq3/4r1n1 b - - 0 1 illegal: No proof kernel
1R1r1Q2/1p3bB1/3p1B1Q/k1RppBPr/6R1/1Kb1n2R/2Np1bP1/5nR1 b - - 0 1 illegal: Other
4rN1Q/b3kpB1/qbb1N1n1/1N3q2/2N1QP2/3Qr1nP/2K1R2r/3NbbR1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Na3 Ke5 Nb1 Ke6 Kd2 c5 f4 a5 b4 g5 e4 c4 b6 d4 b5 a4 b7 g3 e5 d3 b6 g2 Qf1 g4 Qd1 c3+ Ke1 a3 Nf3 g1B Qa4 g3 Kd1 a2 Qa3 g2 Bb2 d2 Qa4 Nh6 Kc2 Nc6 b8Q Ne7 b7 Bb6 Rg1 Ng6 Qe4 Qf6 d8Q Qf5 d7 Bb4 h3 Ra3 Re1 g1B Re2 Re8 Qa8 Bgd4 b8N Bb7 Qd3 Ba6 Qae4 Bg1 Qc8 Ke7 d8N Bc4 e6 d1B+ Kc1 c2 Nd7 Bd5 Nd4 Bc6 Nb5 Be1 N1c3 Bgd4 Rb1 a1Q Nf8 Rb3 Qb8 Qa6 Qbe5 Ba7 Qh8 Bdb6 Ra1 Bg3 Kd2 c1R Rb1 Bc2 Nd1 Ra3 Ra1 Rb1 Be5 Rb2 Bg7 Be1+ Kc1 Bb3 Rb1 Bc4 Ra1 Rbb3 Kc2 Ra2+ Nb2 B4d5 Qa4 Bg2 Kb1 Bc3 Rc2 Qg4 Qd1 Nf5 Qe4 Ng3 Qdd5 Bb4 Rd2 Re3 Qdd3 B4a5 Kc1 Qf5 Rb1 Ra1 Kc2 Bc3 Re1 Bb4 Ree2 Rh1 Rd1 Rh2 Rg1 Bf1 Nd1 Bd2 Nb7 Rb8 N7d6 Be1 Nc4 Ke8 e7 Bd4 Nh7+ Kd7 e8N Rd8 Nec7 Re8 Ne6 Ke7 Nhf8 Bdc5 Nd2 Bcb6 Nc4
3qnN2/BP6/2q5/bp1r2k1/1r1N1Nbn/Q2N1rrb/NP2K2R/1rQ2B1Q b - - 0 1 illegal: No proof kernel
r1BQB3/1bb1p1q1/4PQ1n/1rk5/2r2Qq1/1Q2b3/1PN2RNQ/1Knb2Bq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 Bb7 c4 Bc8 Ra3 d6 Rg3 gxf4 g5 d5 Rg4 hxg4 cxd5 Be6 Na3 Bd7 Nb1 Bc8 e4 Kd7 h4 Kd6 d4 f5 Kd2 c5 Kc2 a5 h5 a4 b6 g3 b7 g2 g6 c4 h6 a3 g7 c3 h7 f3 Rh4 f4 Ba6 a2 Qf1 a1Q Nh3 g1Q Na3 f2 Be3 f3 Rf4 Nh6 g8B Nd7 Bf7 Qg4 Be8 Bg7 b8Q+ Qc7 Qe2 f1R Qh2 f2 Qb3 Be5 Rf8 Qg7 Nf4 Nc5 Ng2 Qd7 Rf3 Rg8 h8Q Qdg4 Rf8 Bb7 Qf4 Nf5 Qhh2 Nh6 Rf5 Rb1 Rf7 f1B Bg1 Be2 Rf8 Bc6 Bc8 Bb7 Rf5 Rf1 Rf7 Qe1 Rf5 Bd1+ Kb1 Nd3 Nc2 Ra5 Rf7 Rb5 Rf8 Kc7 d6+ Kb6 d7 Nc1 d8Q+ Bc7 e5 Rf2 d5 Kc5 d6 Qe4 Ne3 Qh1 e6 Rf1 Qf6 Rf4 d7 Rc4 Rf7 Bg3 Qa5 Bc7 d8Q Rh8 Qaa4 Rf8 Nd4 Rh8 Ng2 c2+ Ka1 Nd3 Ka2 c1B Nc2+ Be3 Kb1 Nc1 Qab4+ Kb6 Qbd2 Kc5 Qdf2 Rf8 Qf2f4 Qh4 Qg6 Bc6 Qd5+ Kb6 Qf1 Bb7 Bed7 Bc6 Ba6 Ra8 Bac8 Bd8 Be8 Bc7 Qd8 Kc5 Rf5+ Bd5 Qf6 Qhg4 Rf4 Bb7 Qf3 Ne2 Qe4 Nc1 Rf2 Qg8 Qef3 Q8g7 Q3f4
3q1B2/1rQR1bqb/1rk5/bb3Rn1/1nPpR1RQ/3P1RK1/1q1N3N/3n1Q2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 b4 gxh4 b6 c6 b7 Bh6 b5 Bg7 b6 Bf8 Bb5 cxb5 f4 d5 Kf2 Kd7 c4 h5 g4 e5 f6 a5 f7 b4 f5 b3 g5 b2 f6 e4 g6 a4 g7 d4 Na3 b1B Qf3 e3+ Kg2 e2 Qh3+ Kc6 Nb5 e1Q Nd6 a3 Ne2 a2 Qe6 h3+ Kh2 h4 Ng1 Bd7 Qf5 Nh6 g8R Na6 b8Q Nb4 b7 Qee7 Nf3 Ra6 Re1 Rh7 Rg4 Rb6 Ree4 Bd3 Rb1 a1Q Ba3 Qb2 Qf4 Qe5 Rf1 Qg5 Qa7 Qg7 b8R Be7 f8R Nf7 Qa5 Ng5 Rb7 Be6 Qa7 Bf7 Rd7 Bc2 Rf2 Ba4 d3 Bb5 Re8 Bf8 R8e5 Be7 Rf5 Bf8 Kh1 h2 Kg2 h3+ Kg3 h1B Nh2 Bg2 Rf3 Be7 Nb7 Bd6 Nc5 Bc7 Nb3 Bh1 Nf1 h2 Nbd2 Bg2 Qa4 Bh3 Qa5 h1N+ Kh2 Nf2 Kg3 Ba6 Nh2 Nd1 Qae5 Bb5 Qe7 Be6 f7 Bd5 f8Q Bf7 Rh4 Bg4 Qfe5 Bgh5 Rhg4 Bhg6 Qf4 Rb7 Qfe5 Rh6 Qf4 Bh7 Qf6+ Ne6 Qh4 Ng5 Qe7 Ba5 Qee5 Na2 Bf8 Rd6 Rfe3 Nb4 Qf1 Re6 Qb8 Re7 Ref3 Rb6 Rdd5 Ra7 Rd7 Rab7 Qc7+
1q1N2N1/Qrr2B2/1B1k2bQ/Q4p2/N3nNq1/1Kn1bP1b/rn4P1/1R2rN2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 d4 gxh4 b4 e5 d6 Qe7 d5 Qg5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 Kd2 Kd7 Kc2 a5 e4 c5 b6 h5 f3 c4 b7 a4 b5 d3+ Kc3 d2 e5 h3 b6 a3 Ne2 h4 Nf4 a2 Qc2 a1Q+ Qb2 d1B Nh5 h2 Ng3 h3 Be3 Ne7 Na3 Nbc6 b8Q Na5 b7 Rh7 Nb5 Bh6 Bb6 Bc2 Qa7 Qa4 Qa2 Be3 b8Q+ Qc7 Qbb7 Bg6 Qba6 f6 Rg1 h1N Qd2 h2 e6+ Kd8 d7 Nf2 Bd3 h1R Rb1 Re1 Nf1 Ne4+ Kb2 Rg7 Nc3 Qb4+ Kc2 Rf7 Na4 c3 Qb5 Nc4 Qba5 Nb2 Bc4 Rg7 Ba2 Qd4 Kb3 c2 Q7a6 c1R Qa7 Rc2 Qc1 Rb8 Qcd2 Rb7 Qc1 Nf5 Qcd2 Ke7 d8N Kd6 e7 Bd7 Ne6 Qb8 Nf4 Nc3 Qc1 Ng3 e8N+ Ke7 Qd2 Bh3 d6+ Kd7 Qc1 f5 Nf6+ Kc6 d7 Nge4 d8N+ Kd6 Ng8 Rgc7 Nd3 Qh8 Nf4 Qh5 Ka3 Qg4 Bf7 Nc4+ Kb4 Ra2 Kb3 Nb2 Nd5 Bd4 Qh6 Be3 Nf4
1r1b2bK/1Q2Qb1R/1N1b2q1/3RR2n/1qnpP3/1Qn4Q/3P1NQq/2Br1k2 b - - 0 1 illegal: No possible last move, all moves rejected
4b3/1q3NBq/r1pKQ2q/3n2nB/Q1PBr3/1Rrn2Q1/Pr1B2Rb/2B4k b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 Nd2 e5 dxe5 Ra5 Ne4 f5 gxf5 Ra8 Nf6+ Ke7 Ng4 hxg4 Qd6+ Kf7 Qd1 Ke8 Kd2 Kf7 Ke3 d5 Kd4 g5 c4 b5 f4 b3 h4 c6 e4 b2 h5 b1R h6 g3 f6 Kg6 h7 g4 e6 b4 Ke5 b3 e7 b2 f7 d4 e8Q g2 Qa4 g3 Bd2 d3 Be3 d2 Ba7 d1R f5+ Kg5 f6 Kg4 Qa3 Ne7 Qc3 Nd5 Bd4 Re1 Nf3 g1Q Rh2 g2 Qe6+ Kg3 Be2 Qe7 Ng5+ Qe3 Bh5 g1N Qa5 Qb4 Qa4 Bd7 Re2 Rbc1 Rb1 Be8 Rf2 Be7 f8B Qb7 f7 Nh3 Bh6 Rc3 f8B Na6 Bfg7 Nc5 Nf7 Ng5 Rc2 Rg8 h8B Ra6 Qd6 Bd8 Rg2+ Kh3 Qb8 Nd3+ Kd6 Qf4+ e5 Re4 Be3 Bb6 Bc1 Bg1 Qc7 Qh4 e6 Bh2+ Ne5 Rf8 e7 Rff4 Nf7 Rf2+ Be5 Rfe2 Bef4 Rf2 Bd4 Rfc2 Bhg7 Rce2 Ra1 b1Q Bd2 Qh1 Rb1 Qc1 Rb3 Qb1 Bc1 Rb2 Bg6 Qh6 Qb8 Bd7 e8Q Qc2 Qe5 Be8 Bfd2 Qb1 Rg4 Qc2 Qc8 Qb1 Qe6 Qc2 Bh5 Qb1 Rh4+ Kg2 Qg3+ Kh1 Rf4 Qc2 Rf2 Qd1 Bg6 Qdh5 Rg2 Qh3 Bh5 Qh7 Bd1 Q3h6 Bh5
q6B/3bN1qP/1N1BrQBk/1pb4Q/2bqB3/Nrn1q2n/1PK3Bn/2R5 b - - 0 1 illegal: No proof kernel
r2N2R1/3nbq2/pN2q2B/1b2P1rk/b5N1/P1nb1B2/1B2NQ1Q/3Nqn1K b - - 0 1 legal: proof: g4 e5 d4 f5 dxe5 fxg4 b4 h5 a3 c5 bxc5 Qg5 Ra2 Qd8 Rb2 h4 Rb3 Qc7 Rc3 Qd8 Rg3 hxg3 f4 Kf7 e4 Kg6 h4 d5 c4 b5 e6 d4 e5 d3 f5+ Kh5 c6 g5 c5 b4 e7 b3 e8N a6 c7 b2 c6 g2 Kf2 d2 f6 Qd7 f7 Nh6 Qe1 d1B Ne2 g1N Kg2 g3 Nbc3 b1B Bb2 g4 Qf2 Ba4 Nd1 Be7 f8B Nf5 Bh6 Bd3 Rh3 Bb7 c8Q Ne3+ Kh1 Rg8 Bg2 Nf1 c7 Rg5 Bf3 Bbc6 Qh2 Qd5 Qf5 Bcb5 c8N Nd7 Nb6 Qf7 Qf4 Qe6 Nf6+ Kg6 Nd4 Ne2 Qd2 Nc3 Ne2 Kf5 h5 g2+ Kg1 Qf7 Rg3 Qe6 Bf8 Qf7 h6 Kg6 h7 Qe6 Bh6 Qf7 Ne4 Qe6 Nef2 Qf7 Nh3 Kh5 h8N Qb3 Nf7 Qe6 Nd8 Qf7 Kf2 g1Q+ Ke1 Qg2 Nhf2+ Qh3 Qc2 Kg6 Rg1 g3 Ng4 g2 Kf2 Kh5 Qd2 Kg6 Nf6 Qhe6 Ng4 Ne3 Kg3 Nf1+ Kh3 Kh5 Qe3 Qg7 Qf2 Qgf7 Qf4 Rf5 Qh2 Ne3 Nf6+ Kg6 Rf1 g1Q Re1 Qh1 Kg3 Rh5 Rg1 Rf5 Rg2 Qe1 Rg1 Nf1+ Kg2 Rh5 Kh1+ Kf5 Rg8 Rg5 Re8 Kg6 Ng4 Ne3+ Qhg1 Kh5 Rg8 Nf1 Qgh2+
4K3/bNk2p1n/3q2Qb/rn4R1/2qRn3/RqB1PPQR/b2Nr3/R1qQ4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Ke2 a5 Kd3 c5 b4 h5 g4 d4 Kc4 h3 b6 d3 Kb5 a4 b7 c4 g5 d2 g6 a3 f3 h4 g7 h2 Nh3 c3 Qf1 d1Q Nd2 c2 Bb2 c1Q Bd4 a2 Qe2 Nf6 g8Q Nc6 b8R Nh7 Bc3 Qb3 Nf2 h3 Nfe4 Bh6 Qd1 Na7+ Kc5 Qf8 d8R Nb5 Kc6 Ra5 d7 Ke7 Rg1 h1N Nc5 h2 Rg5 Ng3 Qg6 h1Q Ra8 Ne4 Nb7 Qf1 Ra7 Qg7 Rf8 Qd4 d8R Be6 Rg8 Qe5 Rd4 Qb8 Rgd8 Qe2 R8d5 Qec4+ Rc5 Rg8 Rh5 Rd8 Rh3 Rd5 Ra8 Rg5 Ra6 Rg2 Ra7 Re2 Ra6 Nbd6 b5 Qd8 b6 Nb5 Nd6 Qf8 b7 Kd8 b8Q+ Bc8 Qa7 Be6 Nb7+ Kc8 Qb6 Kb8 Ra7 Bd5+ Kd7 Qd6+ Ke8 Be6 Rb1 a1B Rg5 Bd5 Qa6 Kc7 Qg8 Bb2 Ra1 Ba3 Qg7 Bc5 Qe5 Bb6 Qg3 Bc5 Ra8 Ba7 Ra3 Qe5+ Qe6 Qd6 Qg6 Qbb4 Rb8 Qd3 Nd8 Ba2 Rb6 Qdc4 Nb7 Qa4 Rdd5 Nd4+ Rbb5 Qac2 Rb1 Q2b3 Ra1 Nb5 Rd4
4B3/p1r2r2/RbN1nQ1q/2q2B1N/3Bbrq1/P1Q2B1N/5nqP/Kn3Bk1 b - - 0 1 legal: proof: g4 e5 d4 f5 dxe5 fxg4 b4 h5 a3 c5 bxc5 Qg5 Ra2 Qd8 Rb2 h4 Rb3 Qc7 Rc3 Qd8 Rg3 hxg3 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 c4 Ke4 f4 d5 e6 g5 f5 b5 c6 d4 f6 d3 e3 g2 c7 g3 f7 g4 c5 b4 e7 d2 e8B b3 c6 Rh7 Be2 Nd7 Bc4 Nc5 Nf3 g1Q Nd4 g2 Bf1 g3 Qe1 d1Q Ka1 Ne6 Qc3 Qd6 Bb2 Bb7 c8B Nf6 c7 Qg4 Nc6 Kf3 e4+ Kf2 e5 Ne4 Nd2 Bg7 Bcd7 Rc8 f8Q+ Bf6 Bh5 Rf7 Be8 Bd8 Nf3 Qd2 Qh8 Qh6 Ng5 Rf4 Qf6 Ba8 Kb1 Bb7 Ba1 b2 Ka2 b1N Kb2 Rb8 c8B Bb6 Ka2 Ra8 Bb2 Rb8 Ka1 Ba8 Bcd7 Rb7 Bc8 Rc7 Bcd7 Nf8 e6 Bb7 e7 Ne6 Be2 Qc1 Re1 g1R Bf1 g2 Rd1 Rh1 Rd6 g1Q Bc8 Q4g2 Bf3 Qg4 Bcd7 Q1g2 Bc8 Kg1 Bcd7 Nf8 Bf5 Nf2 Nd8 Ba5 Ra6 Be4 Nc6 Ne6 Qd2 Bb4 Bd4 Qc5 Qc3 Ba5 Bf7 Rc8 e8N Rc7 Ng7 Bb6 Nh5 Q2g3 B3e2 Qg2 B5g6 Rf3 Qh8 Rf5 Be8 Rff7 Bf6 Nh3 Bf5 Kf2 Bg7 Q2g3 Bg2 Rf1 Bd3 Kg1 Bd4+ Rf2 Qf6 Q3f3 Be2 Qfg3 Bgf1 Qg2 Be5 Rf3 Bd4+ Nf2 Bd1 Rf4 Bde2 Ng7 Bf3 Ne6 Nh3+
2BqQn2/B2q2pB/3QN3/1rb2b1N/2b3q1/3B1RbP/knnK1BP1/N4r2 b - - 0 1 illegal: No proof kernel
4b2K/3Q2n1/bnQ1Rq1R/1N5n/1n1Rp1Pb/1k1rP1N1/4nB1r/nN2N1N1 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 gxf4 a4 b5 axb5 h5 g3 h4 Bg2 h3 Kf1 hxg2+ Kf2 Nh6 Ke1 Ng8 h4 Kd7 Kf2 Kd6 Kf3 Kc5 Ke4 Kb4 Ke5 f5 d4 a5 g4 c5 b6 e6 h5 f3 d6 a4 h6 a3 h7 f4 b7 a2 d7 c4 d5 f2 d6 f1B Qc2 c3 Be3 f3 Bf2 Qc7 d8Q Be7 e3 Bd7 Rh6 Bdb5 Qd7 Nf6 b3 Rd8 h8N Ne8 Nf7 Bh4 Ng5 Ng7 Ne4 Qb6 Ng3 Ra4 Qg6 c2 Qge8 c1N Qc6 Ra6 d7 Ra3 Qf7 Rf8 d8R Rh8 Rd4+ Bfc4 Qfd7 Nd3+ Kd6 e5 Re6 Na6 b8N e4 Rh6 Ndc5 Ke5 Na4 Re6 Ne8 Kf5 Qd8 Kg6 Nb6 Kf7 Ng7 Kg6 Ka5 b4+ Ka4 Kf7 Kb3 Kg6 Nc7 Na6 Ncd5 Nc7 Rh6+ Kf7 Qf6+ Kg8 Ba6 b5 Nb4 Nd5 Rh5 Nf4 Bd5 Nd3 Rh7 Nh3 g1N Ne1 Ne2 Ng1 Rh6 Qcc7 Bc6 Qcc8 Nc4 b6 Rh5 b7 Nb6 b8N Rh7 Qd6 Be8 Qcd7 Rh5 Nc6 Rh7 Nc3 Rh5 Rad1 a1N Na7 Rh6 Nab5 Rh7 Q6c6 Rh5 Ng2 Rh7 Be1 f2 Nb1 f1N Bf2 Rh6 Ne1 Rh7 Nh1 Nfg3 Rc1 N3h5 Ng3 Ka4 Rcc4 Rd3 Rdd6 Kb3 Rcd4 Qg5 Rh6 Qf6 Re6 Nhf4 Qcc8 Bg5 Rg6 Rh2 Rh6 Bh4 Kh8 Nfh5 Qcc6
1bn1Nb2/4P3/3p3Q/nQNb2K1/q2bB1bR/q1NPk3/1rQN1N1B/3b3r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ra2 Qb6 Rb2 Qg6 axb5 Qf5 b6 Qg5 b5 Qd8 Rb4 cxb4 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 c4 Kd4 e4 a5 h4 g5 b7 b3 b6 f3 c5 f2 d3 b2 c6 a4 e5 a3 h6 f5+ Kh5 a2 e6 a1B h7 g4 c7 f4 Nh3 f3 Bf4 g3 Nc3 b1B Qc2 g2 Bh2 g1B Bg2 f1B Nf2 Ne7 Kg5 Ke3 h5 Ra2 h6 Nbc6 b8N Qe8 b7 Rb2 Na6 Na5 b8Q Ba2 Nc5 Be2 Qbb3 Bd1 Qb5 Ba6 c8N Bd5 Nd6 Nc8 Nde4 d6 e7 Qc6 Nf6 Bb7 Ne8 Be6 Nfe4 f2 Nd2 f1Q Be4 Beg4 Ng7 Rg8 h8Q Qd7 Qh7 Rh8 Ne8 Bd5 Qg6 Bf2 h7 Qg2 Qh6 Qc6 Qb4 Qa4 Qb5 Qa3 Bg3 Qf3 Rh4 Qf7 Bh2 Qf3 Bg6 Qe4 Bf5 Qea4 Bg6 Rg8 h8N Rg7 Nf7 Rh7 Ne5 Rf7 Nef3 Rb4 Ncb1 Ke2 Ncb3 Ba7 Ne4+ Ke3 Nfd2 Rf1 Nf2 B1d4 Bf5 Rh1 Nc5 Bb8 Be4 Rb2 Nc3
1q2QK2/1Q1q2R1/3r1bBP/p4b1N/P1n1NqQ1/3RRn2/2r1nR1k/1Rn4q b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 Kf7 Kc3 Kg6 Kb4 Kh5 h4 a5+ Kc4 b5+ Kd5 g5 f4 b4 a4 b3 e4 g2 c4 b2 f5 Nh6 c6 Qf6 c7 Be7 e6 Nf7 c5 Na6 c6 Rd8 e5 Nd6 Bd3 Nc5 Nc3 b1Q Nge2 g1Q Ra3 g3 Ne4 Kg4 h5 g2 h6 Nc4 N2g3+ Kf4 Bc2 g4 Rd3 Qb8 Qe2 Qh2 Rb1 g1N Qd1 Qg7 f6 Nf3 f7 Nb3 f8R+ Bf6 e7 Nc1 e8R d6 e6 Qd7 e7 Ra7 Nf5 g3 Ng7 g2 Nh5+ Kg4 Rf7 Kh3 Rg7 g1N Rf8 Qh1 e8Q Nge2 Qg1 Rb7 Qg4+ Kh2 Re3 Rb2 Rd3 Ba6 c8R Qf1 Rc7 Bc8 Rb7 Qh1 c7 Qf5+ Kc6 d5 Rbb3 d4 Re3 Rd5 Rbd3 Qf4 Rff7 Bf5 c8Q Rd7 Qb7 Ra2 Rc3 d3 Kc5 d2 Rcd3 Re7 Kc6 Re6+ Kd7 d1Q Rf8 Ba1 Rf6 Rd6+ Ke7 Qd2 Kf8 Bc3 Bb3 Rc2 Ba2 Nb2 Bf7 Nc4 Bg6 Qdd1 Re6 Bf6 Re5 Nb3 Rb5 Qd2 Rf1 Nbc1 Rb1 Qd1 Ra3 Qd5 Rac3 Qc6 Rcd3 Qd7 Rf2+
N1nk1n2/2q1rQ2/2r2rb1/4b1Np/N1N1BPqP/6n1/2K1R1pR/Q3NQb1 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 a4 f5 axb5 fxg4 Be3 Ne7 cxd5 Kf7 d6 Ke8 d5 Ng8 Bd4 exd4 Kd2 g5 b4 c5 h4 h5 f4 a5 e4 g3 d7+ Ke7 e5 c4 b6 g4 b7 g2 e6 a4 b5 g3 b6 c3+ Kc2 a3 Ra2 Rh6 Nf3 g1Q Ne1 Ra6 Rh2 Qc7 d8N Rf6 Bg2 Nd7 b8N Ke8 d6 Ne7 b7 Rc6 Rb2 a2 Na6 a1B b8N Bg7 Bh1 Nf8 Be4 g2 Nf7 d3+ Kb3 d2 Ng5 c2 d7+ Kd8 Nc3 c1N+ Kc2 Qf2 Qf3 Qg1 Qf1 d1R Ra2 Ne2 Rb2 Qa5 Nc7 Ng3 Na8 Qc7 Ra2 Ba6 Rb2 Bc4 Na4 Nc8 Bd3 Qe3 Bh7 Qe2+ Kc3 Bd3+ Kb3 Qg4 Re2 Ke7 Bg6 Bc4+ Kc2 Rf5 Bh7 Bgd4 Bg6 Kd6 e7 Bg1 e8Q Rf6 Qf7 Rd5 Bd3 Re5 Bf5 Re7 d8Q+ Qd7 Qb6 Be5 Qb2 Qc7 Nd7 Bb5+ Qc3 Ba6 Ndb6 Bd3+ Kb3 Bb1 Qa1 Be4 Bh7 Bd3 Nc4+ Kd7 Bf5+ Kd8 Bh7 Be4 Bg6 Bf3 Bd3 Be4 Kc2 Bg6 Be4
K1R2k1b/3qn3/4NPR1/Qb2rN2/1q1r4/q1nR3p/QB3prP/R1QR2n1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 cxd5 g6 a4 Nf6 axb5 Ng8 Be2 Qd6 Bg4 fxe4 f5 Qd7 f6 Qd8 Bf5 gxf5 Ke2 a5 Ke3 e5 d4 h5 g4 c5 b4 c4 g5 a4 b6 a3 b5 h4 b7 a2 g6 h3 g7 c3 b6 c2 d6 Ra6 d5 Qd7 Nf3 Rh4 Nd4 Ne7 g8Q Nbc6 b8R Nb4 Bb2 c1N b7 Ne2 Nd2 Ng1 Ne6 Rg4 Nc4 Rg2 Nd8 Ra4 Qe6 Bg7 Qc1 Kf8 Ra8 Bh8 b8R Ba6 Rc8 Bb5 Ra5 Qe8 d7 Qf7 d6 Qe8 Rb1 a1Q Qd5 Qa2 Ra1 Qf7 Qdd2 Qe6 Qdc2 Qa3+ Qb3 Na2 Ra7 Nc3 Qa2 Nge2 Rd1 Ng1 Ra5 Bc6 Rad5 Bb5 R5d3 Qf7 Nc6+ Qe8 d8Q Rb4 d7 Ra4 Nd6 Rd4 Qa5 Qd8 R1d2 Qe8 Re2 f4+ Kd2 f3 Ke3 Qd8 Nf5 f2 Red2 Qe8 Nd8 Qf7 Rd1 Qe6 Kd2 e3+ Kc2 e2 Rg3 e1R Rg6 Rc4 Kd2 Ree4 Kd3 Red4+ Ke3 e4 Kf4 Qf7 Ke5 e3 Rd3 Rb4 Rd1 Re4+ Kd6 e2 Kc7 e1Q Kb8 Rbd4 Ka8 Qd2 Nb7+ Qe8 d8R Re5 Rd6 Qe1 Nd8 Qd7 Rd3 Ncd5 Rd1 Qeb4 Rd3 Nc3 Rd1 Rh4 R6d3 Rd4 Ne6+
B3KbNQ/1r2p1bB/1n3Q2/B1n4P/4p1B1/1R1qP1N1/bq1n1r1q/3k1NB1 b - - 0 1 legal: proof: d4 b5 g4 c5 dxc5 h5 b4 hxg4 a4 Rh6 axb5 Rh8 Ra6 f6 Re6 f5 Re4 fxe4 Kd2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 a5 f4 d5 h4 g5 c4 g3 b6 Kg4 h5 d4 b7 d3 c6 d2 b5 a4 b6 a3 c5 a2 f5 a1N c7 g2 f6 Nc2 f7 Bd7 c8B Ra5 e3+ Kg3 Be2 Kf2 Bg4 Ra3 c6 Nd4 c7 Ra2 Ne2 g1B Ng3 Nf6 Qf3+ Ke1 Bf5 d1Q Bh7 g4 Nd2 Ba4 Ndf1 Nb3 Ke6 Na6 b8Q Qe2 b7 Bh2 Bd2+ Kd1 Ba5 Nd7 Qf6 Nb6 Qa8 Qb2 b8B Qdd2 Bb7 Qd3 c8B Nd2 Rg1 Bb3+ Bd5 Na4 Kd7 N6c5+ Ke8 Nb6 Bd6 Rg8 Qb8 Rg5 Ba8 Rd5 Be5 Rd7 Rg2 Rb7 Bd6 Bg7 f8N Bg8 Nd7 Bf8 Nh1 Bf4 Nhg3 B4h6 Rf2 Bhg7 Rf5 Ne6 Rb5 Nc5 Rb3 Bc4 Qc3 Bd5 Nf6 Bc4 Ng8 Be6 Ne2 g3 Qf6 g2 Bh2 g1Q Neg3 Qf2 Bg1 Qh2 Qbe5 Ra4 Rb5 Ba2 Rb3 Rd4 Bd7 Rd5 Qb8 Rf5 Be6 Rf2 Qbe5 Bh6 Qh8 Bhg7 Qf6 Ndc4 Bef5 Nd2 Bg4+
2N5/2p1p3/QNnRq1R1/PQ1nP3/1k1b2Qr/3QB1KQ/2qb1r2/q2bRr2 b - - 0 1 illegal: No possible last move
2nq2N1/3bN2K/1nr1rN2/1P1p4/1b4Q1/R2P3Q/qQQpk2B/rQq3Rn b - - 0 1 illegal: No extended proof kernel
3n1b1q/1rN1R1pr/4QqQQ/8/1Q1bB1Qr/p2N2Bq/PN2k1Pb/2K2n2 b - - 0 2 illegal: No proof kernel
3Qr2n/NRp2pBN/kb1nnPP1/8/qN4n1/NQ2nK1b/N2B4/1rbB4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 d4 gxh4 b4 e5 d6 Qe7 d5 Qg5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 f4 Kd7 Kf2 a5 g4 h5 e4 a4 e5 h3 b6 h2 b5 d3 f5 d2 b7 h4 g5 a3 b6 a2 Be2 a1B Kf3 Qe8 e6+ Kd8 d7 h3 Qc2 d1N Bd2 Na6 b8N Bc5 b7 Ne3 Qb2 Rh6 Na3 Ne7 Qb1 Bcd4 Qb4 Nc5 Na6 Bab2 b8N Ng6 Qa4 Nh8 g6 Ke7 d8B+ Kd6 e7 Rh5 Qd1 Qa4 Nc6 Be6 e8N+ Kd7 d6 Kc8 d7+ Kb7 Nf6 Kb6 Be7 Re8 Nab4 Rg5 Nd3 Ka6 d8Q Rg4 Na7 Rf4+ Kg3 Rf1 Nh7 Re1 f6 Bg4 Nc6 Ne6 Bf3 Bc5 Ne2 Ba7 Rf1 h1N+ Kh4 h2 Nec1 Bc5 Na7 Nf2 Kg3 Bh3 Bf8 Nfg4 Bg7 Bcd4 Be2 h1N+ Kf3 Nhf2 Na2 Ne4 Qc2 Ra1 Rb1 Nd6 Bd1 Bc1 Rb7 Bb6 Qb3 Rb1 Ndb4+
b2kr1b1/PRR1r2b/K1nqp3/5RQ1/1b6/2R1pBQQ/bn1RP1rN/4B3 b - - 0 1 legal: proof: c4 a5 b4 axb4 h4 g5 hxg5 d5 cxd5 f6 Nc3 f5 Ne4 fxe4 d4 c5 Kd2 b5 a4 h5 g4 b3 Kc3 e3 f4 h4 a5 b4+ Kc4 b2 Kb5 b1B f5 c4 d6 h3 g6 h2 g5 b3 a6 b2 d5 c3 a7 c2 f6 e6 f7+ Kd7 g7 Nh6 g8Q Ng4 g6 Qe7 g7 Nf2 Bd2 c1R Bg2 Qe8 Ra3 Rh7 Bf3 Rc7 Qf1 Rh6 Qh3 Ba2 Rc3 b1B Be1 Kd8+ d7 Bb4 f8R Bb7 Rf5 Rg6 Kb6 Qf8 Kb5 Ke7 d8R Nd1 Rc8 Nc6 d6+ Kd7 Kb6 Rg2 Rb8 Ba6 Rb7 Kd8 d7 Rac8 Rb3 Bad3 Rc3 Bdc2 Kb5 Nb2 Ka6 Ke7 d8R Rb8 Rfc5 Bh7 Rd2 Re8 Rcd5 Qf4 Rf5 Rd7 Rc7 Qd6 Rb7 Ra8 Qb8 Bg8 Qc7 Re8 Qb8 Qd5 Qbg3 Kd8 Qg5+ Rde7 Qgg3 Bh7 g8Q Qd6 Q8g5 Bg8 Bg4 Nc4 Nf3 Nb2 Rf1 h1B Nh2 Be4 Bf3 Bc2 Rc7 Bd3+ Rb5 Bdh7 Rbb7 Bg6 Rb6 Rf2 Bg4 Na5 Qf5 B6h7 Qg5 Ba8 Bh5 Rg2 Rf5 Nc6 Rbb7 Rf2 Bg4 Rg2 Bf3
qrrR2b1/1r2bNQ1/2BN2p1/Q1P3p1/Q1Knk1N1/N6n/2R1rrP1/1nN5 b - - 0 1 illegal: No possible last move
n2BK1n1/2NrpN2/1k6/2r2Q2/B2qPB1R/1nbQ2rP/1pBnn3/1b2NB2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h5 a4 Bf5 g6 Qd7 g5 Qd8 Ra3 Bg4 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 Kg3 b5 Kf4 c5 Ke5 Kc7 d4 f5 g7 g3 d6+ Kb6 d5 c4 d7 f4 Ke6 g2 Kf7 f3 g6 c3 d6 b3 Na3 f2 Bf4 b2 Nf3 g1R Ne1 b1N Qd3 b4 Nb5 b3 Nc7 c2 e3 c1N a5+ Ka7 a6 b2 Qf5 Kb6 a7 Rh5 Qd3 Na6 e4 Rb8 a8B Nc3 Bd5 N3e2 Bb3 Rc5 Ba4 Rg3 Bc2 Rb7 Ba4 Nf6 g8Q Nb3 Qh7 Ng8 g7 Ra7 Qf5 Rb7 Bg2 f1N Bh3 Nfd2 Bf1 Nf6 g8B Bg7 Bh7 Qh8 d8N Ng8 d7 Bc3 Ke8 Qd4 Nf7 Ra7 d8B Be6 Bg6 Rb7 Bh5 Bc4 Qf3 Bd3 Qe3 Bb1 Qd3 Nb8 Bf3 Nd7 Bg4 Ka7 Bh5 Nb6 Bg4 Na8 Bh5 Nec1 Bd1 Kb6 Bc2 Ra7 h3 Ne2 Rg1 Raa5 Rg2 Rd5 Rg1 Rd7 Rg2 Rc5 Rg1 Re3 Rg4 Rg3 Rh4
1rn2Rbn/3B2KP/pR1N4/3nB1Bb/1b1n1rn1/P1BpqQ2/1R5B/k3Q3 b - - 0 1 legal: proof: d4 b5 g4 h5 c4 e5 cxb5 exd4 Nc3 Bc5 Ne4 f5 gxf5 Bf8 Nf6+ Ke7 Ng4 hxg4 Bf4 Kf7 Bc1 Ke8 Kd2 Ke7 Kd3 Kf6 Ke4 g5 b4 c5 f4 d5+ Kd3 g3 e4 g4 h4 g2 h5 a6 b6 g3 a3 Nc6 b5 Nh6 b7 Qe8 b8B Na7 b6 Be6 b7 Ng4 h6 Bg8 h7 Nc8 Nh3 g1N Rb1 g2 Ng5 Nh3 Rb2 g1N Qf3 Ne2 Nf7 Nc3 Nd6 Ng5 Bh3 Nf7 Rb6 Qe6 Rh2 Be7 Rhb2 c4+ Kd2 d3 e5+ Kg7 Bc7 d4 b8B Nd5 f6+ Kg6 f5+ Kg5 Ke1+ d2+ Ke2 c3 Kd3 c2 Ke4 d3 Kd4 Bf8 Ke4 Qe8 e6 Ra7 e7 Ra8 Qe2 Ra7 Kd4 Kf4 Qe1 Kf3 Qe4+ Kf2 Qf3+ Ke1 Ke4 d1B Bg5 c1N Kd4 Qc6 e8Q+ Ne2+ Ke4 Qc5 Qe7 Nfh6 f7 Nd4 f6 Be2 Qe6 Kd1 Qe8 Be7 f8B Nf7 Bg7 Bf8 Qe5 Qc1 Qeg3 Qd2 Qh4 Kc1 Qe1+ Bd1 Nc4 Ra8 Bh2 Bb4 Bbe5 Rb8 Nd6 Nde7 Ra2 Kb1 Rc2 Ka1 Rb2 Qf2 Kf4 Nd5+ Ke4 Ne2 Kf5 Qe3 Bc3 Nd4+ Kg6 Ngh6 Bf5 Ng4 Bd7 Ngh6 Qef2 Be2 Q3g3 Bf3 Bf8 Be2 Be7 Bh5+ Kg7 Ng4 Qh4 Nd8 Qh3 Bgf7 Qhf3 Rf8 Q2g3 Bg8 f7 Re8 f8R Nf7 Bef6 Nh8 Qgf2 Re4 Bfe5 Rf4 Qe1+
B2nQ1n1/1P1Rp1bp/3qk3/b2Rr3/5NQ1/r1B1Pbn1/Bb3KB1/b1B2Q2 b - - 0 1 illegal: No possible last move
4Bn1n/R1bQ4/1n1b2rp/pP1QR2K/R1Q1bB1P/k4r2/3N2R1/rn2q1R1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Nc3 f3 Nd5 d6 Nf4 d5 cxd5 gxf4 Kf2 Kd7 g4 Kd6 b4 f5 e4 c5 d4 h6 h4 c4 g5 c3 b6 c2 g6 Bb7 g7 Ne7 g8R Qe8 Rg2 Rg8 Ra6 Nd7 Qd3 Ng6 Qc4 Nh8 Ra1 Bc6 b7 Rg6 b8R a6 Be3 c1B Be2 Be7 Rb5 Nf8 e5+ Kc7 e6 Kd6 Rb7 Ba3 b5 Bd8 e7 Bc7 Ra7 a5 Rb1 Bc5 Kf1 f2 Bh5 Bb4 Ke2 f1R Rb3 Ra1 Nf3 Rb8 Nd2 f3+ Kf2 f4 Rhg1 Ba3 Rb4 Rb6 Nb1 Rf6 Bc1 Ba8 Nd2 Rf5 Kf1 f2 Ke2 f1N Kf3 Rf7 Kg4 f3 Bg6 f2 Kh5 Rf3 Bf7 Ne3 Bg6 Qc6 e8R f1N Re5 Qe8 Bf7 Qe6 Be8 Ra6 Qb3 Nc4 Qa2 Nb6 Qc4 Ke7 d6+ Kf6 d7 Ke7 d5 Kd6 Qe2 Kc5 d8Q Qe7 d6+ Bd5 Nc4 Nd2 d7 Nb1 Bf4 Qe6 Nd2 Qe7 Re3 Be4 Qa8 Qe6 d8Q Qe5+ Bg5 Qg3 Qd7 Qe1 Qad8 Nd5 Qd3 Rg6 Bf4 Nb6 Qb3 Bd5 Re7 Be4 Re5+ Bd5 Rbe4 Rgg3 Qa8 Rg6 Nc4 Bb4 Qc3 Ba3 Qd3 Kb4 Nd2+ Nc4 Rd4 Be4 Qad5 Ka4 Qe2 Bad6 Qf1 Ka3 Qe2 Nb2 Rb4 Na4 Qec4 Nb6 Ra4+
4R3/k3Nb1K/B1n1p1p1/5Qqb/1b1PN1b1/1NRQR1n1/r2r2Pr/n1N3N1 b - - 0 1 illegal: No proof kernel
Q6Q/rQP1p1Q1/r5NK/3R1RnN/2bn1Q2/pb2PrbB/n1kq1R2/b7 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h6 g6 Qc7 g7 Qd8 g4 Rh7 g5 Rh8 g6 Nf6 Bf4 Ng8 Bg5 hxg5 Kd2 f5 b4 a5 h4 d5 c4 Kd7 c5 Ke6 c6 Ke5 h5 Ke4 b6 a4 b7 a3 e3 g4 c7 d3 b5 f4 b6 d4 h6 g3 h7 g2 Nh3 g1B Ra2 f3 Nf4 f2 Qa4 Bh2 Bh3 f1R Nh5 Nc6 b8R Ra6 b7 Nh6 g8Q Be6 g7 Rf3 Rf1 Nf7 Rc2 Qd7 Rd8 Bg3 b8Q Ng5 Qb7 Bc4 Qf7 Qd5 g8Q Bg7 Qa5 Bf6 Qgg7 Rf8 Rd6 Rfa8 h8Q R8a7 Kd1 d2 Nc3+ Kd3 Ne2 Bfe5 Qa4 Qa5 Rd5 Qc3 Ra2 Qb4 Nef4+ Kc3 Nd3 Qd6 Ke2 d1N Qf4 Qd8 Rb2 Qd6 Rb3+ Kc2 Rf2 Qb4 Qa5 Qc3 Rbb5 Qd2+ Kf1 Nc3 Kg2 Bf6 Ne5 d3 Ng6 Na2 Rf5 Ba1 Rbd5 Nd4 Qa4+ Bb3 Qae8 Bc4 Qea8 Bh4 Kh2 Bg3+ Kh1 Nb4 Kg2 Qe2 Nf6 d2 Bg4 Ne4 Kh3 Na2 Nh5 d1B Qgh7 Kd3 Qhh6 Qd2 Q6g7 Bh2+ Kh4 Bdb3 Bh3 Kc2 Nf6 Ng5 Kh5 Bg3 Kh6 Rc6 Nh5 Re6 Qag8 Rea6 Qga8
2Q2R2/1nP1q2N/1B3p1p/3b1PBK/nNknQ1B1/n2Bn3/qbr2rB1/N7 b - - 0 1 illegal: No possible last move, all moves rejected
b1nNk2B/1b3r1p/qBr1q3/5Q1b/1K4p1/1B1RbR2/Q2P2Pb/2nB2BR b - - 0 1 illegal: No proof kernel
n3Qb1N/2Np2r1/k1N3qB/3K1Bn1/1rB1Rp2/P2n1Pnq/3Bb3/1B2Q1q1 b - - 0 1 legal: proof: g4 c5 d4 h5 gxh5 a5 dxc5 e5 b4 axb4 a3 Qc7 Ra2 Qd6 Rb2 Qg6 Rb3 Qg5 Rd3 Qd8 Rd4 exd4 Kd2 b5 Kd3 g5 Ke4 f5+ Kd5 g4 e4 b3 h4 g3 c4 b4 h6 b2 f3 b3 c6 g2 c5 d3 c7 d2 h7 Ra6 h5 Rb6 e5 f4 h6 Ke7 Ne2 g1N c6 Na6 Nbc3 b1Q Bh3 b2 Nd4 Qg6 Bf5 Ne2 Re1 Ng3 Re4 b1Q Qh1 d1N Bd2 Bb7 c8Q Nf2 Qb8 Bc8 c7 Rb4 Nc6+ Ke8 Qf1 Qh4 Qe2 Qg1 Qe1 Qh3 Qa8 Kf7 Qb8 Bb7 c8B Ke8 Qa8 Nc5 Qb8 Ne6 Qa8 Ba6 Qb8 Be2 Ba6+ Kf7 Bc4 Nd3 Nb5 Ne7+ Kd6 Nc8+ Kd5 Rg8 h8B Ke8 h7 Rb1 Bg7 Rb4 h8N Ng5 Bh6 Rg7 Rd4 Nc5 Bb1 Nd3 e6 Ne5 Re4 Nd3 Ne7 Kd8 Qe5 Na7 Nc6+ Kc8 e7 Kb7 Qe6 Ka6 e8B Nc8 Bf7 Qgg2 Qe8 Qf1 Be6 Nb6+ Kd4 Qfg2 Bf5 Na8 Kd5 Qg1 Nc7+
Q5nq/qR1Q2q1/1Bprbn1B/2PB1p1B/1R6/rNb4B/2bP1K1k/3q2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 a4 exf4 axb5 Bc5 Na3 Be7 c5 Bf8 Nc4 dxc4 e4 Ke7 b4 Ke6 g4 Ke5 b6 a5 b7 f5 b5 h5 b6 c3 g6 f3 g7 Kf4 g5 Kg3 g6 a4 e5 c2 e6 a3 e7 a2 e8B h4 Bb2 c1Q Rb1 a1Q Bh3 Qc3 Qa4 Nd7 b8R Ndf6 b7 Rh6 Qd7 c6 Kf1 f2 Nf3 Qe7 Nd4 Ra3 Rg1+ Kh2 Nb3 Qa5 Bc3 Qa7 Ba5 Qf7 Ke2 f1B+ Kf2 Bd3 Bb6 Bc2 Rb2 Qd1 Rb1 Ne7 g8B Qg7 Bd5 Neg8 Bef7 Bd6 Be8 Be5 Rb2 Qf8 g7 Bc3 Bh5 Qe7 Qe8 Be6 Qd7 Qf7 Rb1 Ne7 g8Q Qg7 Nc1 Rg6 Rb4 Rh6 Qf8 Neg8 Nb3 Rg6 Re8 Rh6 Re7 Rg6 Qa8 Rh6 Bhg2 h3 b8B+ Qc7 Qc8 Nd7 Bgf3 Bf7 Rf4 Qa7 Bfg4 Rg6 Be5 Rd6 Bg6 Ndf6 Rb7 Be6 Bf7 Qa4 Qd7 Qa7 Rg2+ Kh1 Rb4 h2 Bf4 Qe1+ Kf3 Qh4 Bh3 Qhh6 Rg4 Qhh8 Kg3+ Kg1 Bh5 h1Q Bh6 Qf3+ Kh4+ Kh1 Rg2 Qd1 Rg5+ Be4 Kg3 Kg1 Rg4 Kh1 Kf2 Kh2 Rg6 Bc2 Rg1
3bNN2/Q2Kn3/1Q2R3/q1Nb4/1bp1nr2/1nP1rpPN/1k2RnRB/2qN4 b - - 0 1 illegal: No possible last move
bB3Bn1/q5b1/r5B1/NK1kp1r1/p1NPQRQ1/P5N1/n2N1q2/q1qn2N1 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 f4 g5 fxg5 h5 Bb2 Nd7 Bc1 Nb8 g4 Bf5 a3 Nd7 g6 Be6 g5 Nb8 Ra2 Nf6 Rb2 Bh3 Rb3 Ng8 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 d4 Ke6 h4 a5 c4 b5 h5 f5 g7 b4 h6 e3 Kd3 f4 g6 g3 h7 f3 c6 b3 c5 f2 Kc4 g2 c7 e2 c6 e1N Bf4 b2 Qg4+ Kf6 Rh4 e6 Kb5 a4 Bd3 f1Q Nd2 Bb7 c8Q Qd7 Qe8 Na6 Bb8 Qf2 Bc2 Qe7 c7 Nd3 c8N Nab4 Nd6 b1Q N6c4 Qc1 Qc6 Na2 Qce4 e5 Bb1 Ra6 Bc2 Nh6 g8N+ Kg7 Bb1 Nb2 Nf6 Ng8 Bd3 Nd1 Nh5+ Kh6 g7 Ba8 Bc2 Qa7 Bb1 Ne7 Bc2 Rg8 h8B Qa1 Qe1 Qc1 Bg6 Qa1 Qee2 Qc1 Qge4 Kg5 Ng3 Kf6 Rf4+ Ke6 Qg4+ Nf5 Qee2 Kd5 Qe3 Nh6 Qee2 Be7 Qe1 Bf6 Qee2 Rd8 g8N Bg7 Qd3 Rf8 Qc2 Rf5 Qe4+ Ke6 Ne7 Ng8 Nc6 Qa1 Qd3 Kd5 N6a5 Rg5 Qdf5 Bh6 Bf6 Bg7 Be7 Qc1 Bf8 Qa1 N1e2 g1Q Qd3 Qge1 Ng1 Qee3 Qc2 Qec3 Qcf5 Qcc1 Qe4#
BQ1N1N1n/5n1B/KQqnb2k/pB6/P3Bqp1/4R3/1B4Pr/1Nr1qn1b b - - 0 2 legal: proof: e4 c5 b4 d5 bxc5 dxe4 a4 f5 h4 g5 Be2 f4 Bf1 g4 Ra3 Bh6 Re3 Bg5 hxg5 fxe3 Ke2 Kf7 c4 Kg6 d4 a5 f4 b5 c6 e5 c5 h5 d5 h4 c7 h3 d6 h2 d7 b4 c6 b3 Na3 b2 Nf3 b1N Qd6+ Nf6 Nd4 Qf8 d8Q Be6 c8B Nd2 c7 Ne8 Qb6 Nc6 Bb7 Rc8 Qd6 Nd8 Nc6 Nf7 f5+ Kh5 g6 Kh6 Rg1 h1B g7 Rh7 g8B Nh8 Qdb4 Nd6 f6 Qe8 Nd8 Qc6 Ke1 e2 f7 Qc3 f8N Qc6 Kf2 e1N Ke3 Nef3 Ba8 Ng5 Nb1 Ngf7 Bb5 Nf1+ Ke2+ e3 Kd3 e4+ Kd4 Rg7 Bb2 e2 Bh7 e1Q Qb3 e3 Be4 Qd7 Kc5 e2 Qb8 Qc3+ Kb6 e1Q Ka6 Qcg3 Qe3+ Qf4 Qeb6 Qc6 Bh7 Ng3 Rf1 Rg5 Rf3 Rh5 Re3 Rh2 Qb7 Rb8 c8B Nf1 Qa7 Rb7 Qb8 Rc7 Bcb7 Qe8 Ng6 Rc1 Be4 Qc6 Nf8
4B3/n4n2/r1Rp4/1r3pbK/BQb2B2/Q1BNqP2/PNqq1B2/rrN3k1 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 cxd5 Kd7 d6 h5 gxh5 Kc6 d7 Kd6 Ba3 c6 Bb2 Kc7 Bc1 Kd6 d4 Qb6 d8B Qc7 d5 Rh6 Na3 Kd7 d6 Ke6 d7 Rh8 Rb1 Qb6 Rb3 Rh6 Rd3 Rh8 Rd6+ exd6 e4 Ke5 Ke2 f5 Kf3 g5 h4 c5 h6 c4 h5 c3 h7 b3 h6 b2 Qb3 Kd4 e5 b1Q e6 c2 e7 g4+ Kg3 Nc6 Kh4 g3 e8B g2 f3 Ra6 Bb5 Be7+ Bg5 c1Q Kh5 Na7 Bf4 Qd2 Nc4 Qbc2 Ba4 Bg5 Qb4 Qc5 Rh4 b5 Bb6 Bb7 d8N Bd5 Qa3 b4 Nf7 b3 Nfe5 b2 Nd3 b1R Ncb2 Bc4 Rg4 Bh4 Rg7 Bg5 Rc7 Ra1 Rc6 Rb1 Be5+ Ke3 Ne2 g1R Nec1 Rd1 Nb4+ Kf2 N4d3+ Kg1 Bf4 Qce3 Qb4 Ne7 Bd4 Rg8 h8Q Ng6 h7 Ne5 Bb6 Nf7 Qhc3 Rf8 h8B Re1 Qca3 Rd1 Bd7 Rb8 Be8 Re1 Bc3 Ra1 Nb3 Reb1 Nbc1 Rb7 Ba5 Rb5 Bd8 Bh6 Bh4 Bg5 Bf2+
5q2/n1Q1b3/n1p1R1QB/r2r1k1b/2Pq1Bqb/B1BNp3/2b2P1N/KBQ5 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 e4 hxg4 b4 f5 e6 Nh6 e5 Ng8 Ra3 Nc6 Re3 Nb8 Re4 fxe4 Kd2 Ke7 Kc3 g5 Kb2 d5 h4 a5 c4 e3 b6 c6 h5 d4 h6 d3 b5 a4 b7 d2 h7 g3 b6 g2 Nf3 g1Q Bd3 g4 Nc3 g3 Nh2 g2 Ne4 a3+ Ka1 a2 Bb1 Na6 b8B Qd4+ Bb2 Bd7 b7 Be8 Qc1 d1B Nc5 Beh5 Nd3 Bc2 Bc7 Qd1 b8B g1Q Bc3 Qgg4 Bd6+ Ke8 e7 Kd7 Bbc7 Ke6 e8Q+ Be7 Qb8 Kf5 e6 Qdf3 Ba3 Bh4 Be5 Ne7 Qc7 Nc8 e7 Na7 Bf4 Rhd8 e8Q Rd5 h8B Be7 Bg7 Bh4 Kb2 a1B+ Ka2 Be7 Bgh6 Bb2 Bc5 Ba3 Ka1 Bh4 Bcf8 Bae7 Rd1 Beg5 Ba3 Be7 Rd2 Ra5 Rd1 Rd8 Rh1 Rdd5 Rg1 Qgg7 Rg6 Qg4 Re6 Qf8 Qg6+
2Q2BN1/2bK3p/2nR1QnN/2rQPQ1Q/5b1P/rp4kb/1qRrqN2/6r1 b - - 0 1 legal: proof: d4 b5 g4 f5 a4 fxg4 axb5 e5 dxe5 c6 b4 Nh6 b6 Nf7 b7 Qh4 b5 Qg5 b6 Qd8 Bg2 Nh6 Bd5 Ng8 Bc4 Ke7 Ba6 Ke8 Bb5 cxb5 Kd2 Kf7 Kd3 Kg6 Ke4 Kh5 Kf5 Kh4 f4 d5+ e6 g5 c4 a5 e4 d4 c5 a4 e5 d3 c6 g3 c7 d2 Na3 b4 Nb5 g2 Nh3 g1Q Ba3 b3 Ra2 g4 Nd6 g3 Nf2 g2 Nf7 Nc6 b8Q Bg7 b7 Bf8 Nh6 Qe1 Rc2 Ra7 Qa8 g1R b8Q Qd4 Qb6 Qe2 h3 Bd7 c8Q Kg3 h4 Qb2 Rh2 Bg7 Bf8 a3 Qbd8 a2 Qf6 a1B Rh1 Qc4 Qh5 Ra3 Qa5 d1R Qd5 Qe2 Rh2 Be8 e7 Rd2 Ke6 Bd7+ Kd6 Bh3 e8N Nge7 f5 Ng6 Kd7 Rf1 Rh1 Rc1 Rd1 Rg8 Qe6 Bf6 Qed6 Bd8 Nf6 Ba5 Qe7 Rg7 Nfg8 Bc7 Qf7 Qa2 Qe7 Bc3 Qf7 Qb2 Qe7 Bf1 f6 B3a5 f7 Bh3+ Qe6 Bab6 Qef5 Be3 Be7 Bf4 f8Q Rca1 Qf6 Ra5 Qf7 Rc5 Bf8 Ra3 Qe7 Nh8 Qef7 Rg4 Q7e6 Ng6 Qef6 Rd3 Rf1 Kh2 Qdd6 Rg1 Rd1 Kg3 Rdd2 Rdc3 Rd5 Rd3 Qde6 Rd4 Rd6 Rd2 Qd5
Q1K5/1B2r2p/RB3N1q/2bp1rRP/1bBB2Br/1b2Q3/nr1P1Rq1/3k3n b - - 1 2 legal: proof: b4 b5 f4 e5 a4 exf4 axb5 g5 Nc3 c5 Nd5 f3 Nf4 gxf4 bxc5 Be7 Ra4 Bd6 Ra1 Bf8 Kf2 Ke7 e4 Kf6 c4 Kg5 g4 f5 h4+ Kf6 b6 Ke5 b7 Kd4 h5 a5 g5 a4 e5 a3 c6 a2 e6 Qb6 c7 Nc6 b8B Nf6 e7 Ra4 e8Q Bb4 Ne2+ Kd3+ c5 d5 g6 Bd7 Qe5 Re8 c8B Re7 g7 Qa6 Qe1 Kc2 g8R Qb6 Bb7 Ng4+ Kg1 f2+ Kg2 f3+ Kg3 Be8 Ba7 f4+ Kh3 Bg6 Bb2 Bd3 Rf8 Bc4 Rg1 Bb3 Nc3 Qa6 Be2 f1R Qe3 f2 Bc4 f3 Ne4 Qb6 Q1e2 Rb1 Bd4 f1R Nf6 f2 Kh4 Qa6 Kg5 Rb2 Kf5 Qb6 Rg2 Qa6 Rg8 Qb6 Rg5 Qa6 Re1 a1B Q2f3 Qb6 Re2 Qa6 Bb6 Kd1 Qg3 Re1 Qc7 f1Q+ Rgf2 Qg2 Qc8 Rh1 Qa8 Rh4 Qc3 Ra3 Re6 Ra4 Qe3 Ra3 Rf3 Nf2 Rd6 Nh1 Rf2 Ba5 Re6 Nb4 c6 Na2 c7 Bb4 c8B Bc5 Bd8 Qc6 Bb6 Ra7 Rd6 Rf7 Ke6 Rf8 Ne8 Rf5 Ke7 Bb4 Kd8 Bc5 Rf6 Qd6+ Bd7 Qf8 Kc8 Qh6 Bbc6 Rb7 Be6 Re7 Bb7 Rc2 Bd7 Bc3 Re6 B3b4 Nf6 Rb2 Rc6 Rf3 Bh3 Rf5 Bg4+ Kc1 Bd8 Kc2 Ra6 Kc1 Bb6 Kc2 Bh3 Kd1 Bg4+
kQ3NBb/2Rp2qb/3Qq1Qn/KpQ1n3/3B1N2/1Br4b/PP1n1Q2/3r3n b - - 0 1 illegal: No proof kernel
1r2k1n1/K1Qq1pn1/1nq1NR2/2bPN3/RRp1rB1b/1Q3R2/5P2/1N1n1bR1 b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 h4 gxh4 e3 d5 cxd5 e4 d4 Kd7 Bc4 Ke8 Bd3 exd3 Kd2 a5 Kc3 c5 Kc4 h5 b4 d2 g4 h3 e4 h2 g5 h4 e5 h3 d6 a4 b6 a3 Kb5 c4 d5 a2 e6 Bh6 e7 Ra7 b7 Ra4 g6 Kd7 e8R Bf8 g7 Rh4 Re6 Ra8 Nf3 Re4 Qb3 d1N Rg1 h1N Rf6 h2 Bf4 Ng3 Ne5+ Ke8 Kc5 h1Q b5 Qh6 b6 Qg6 Kb5 Nd7 b8Q Qh6 b7 Nb6 Qc7 Nh5 b8R Bh3 Rb7 Rb8 Ka6 Qc8 Ka7 Qd7 Rg3 Bf1 Rf3 Ne7 g8R Ng7 Rh8 Qg6 Rh1 Ng8 Rg1 Be7 Rf5 Bh4 Rf6 Qg3 Rf5 Qh3 Rf6 Qc6 d7+ Ke7 d8N+ Ke8 Nc3 Qc8 Ne6 Q8d7 Rc1 a1B Nb1 Bd4 Rc2 Bc5 Ra2 Na4+ Rb6 Ba3 Rb4 Nb6 Ra4 Bf8 Rb4 Bc5 Raa4
b2q2bK/1R5Q/1r3ppb/1B2n2n/2QN1P1N/BP1b3N/Bk2b3/bNN2r2 b - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 e5 Ra3 e4 Rd3 exd3 Kd2 Ke7 e4 Kf6 f4 a5 h4 d5 c4 a4 h6 a3 h5 a2 b6 a1B e5+ Kf5 c5 Ke4 b7 f6 h7 Ra4 e6 Ra2 e7 Na6 b8N Bb7 e8B Nb4 h6 Bc6 Qc2 Ne7 Nh3 Nf5 Bf7 Ba8 c6 Ng3 c7 Nc6 c8Q Ne5 Q8c4 Nh5 Nc6 Ra6 Be2 Rg8 h8N Rb6 Ng6 Rh8 Nh4 g6 h7 Bh6 Rf1 Rf8 h8N Re8 Q2a4 Re7 Qa7 Reb7 Be6 Rd7 Nf7 Re7 Ke1 d2+ Kf2 d1B Rg1 Bc2 Qd7 Nf3 Nfe5 Bd3 Rd1 Re8 Qh7 Rh8 Nb4 Re8 Nec6 Ne5 Na2 Re7 Bd2 Ra7 Bb4 Ra3 Rh1 Rc3 Bd6 Rc1 Ba3 Rf1+ Kg2 Ke3 Nc1 Ke4 Bd1 Ke3 Ba4 Ke4 Bb5 Ke3 Nc3 Kd2 Rg1 Kc2 Bf7 Bf5 Rh1 d3 Nb1+ Kd1 Nd4 d2 Be6 Bd3 Bg8 Ke1 Be6 d1B Bf7 Bb3 Rh2 Ng7 Kg3 Kd1 Rf2 Nd7 Kf3 Nh5 Ke3 Ne5 Rg2 Nc6 Rg5 Ba2 Re5 Bb3 Re7 Ne5 Rb7 Ba2 Nc6 Bb3 Kd4 Ba2 Kc5 d4 Bg8 Qb8 Kd5 Qd8+ Ke6 Bb3 Qd5 Kc2 Bf7 Be4 Bg8 d3 Bf7 d2 Qc4+ Kd1 Bg8 Bd3 Bf7 Ke1 Bg8 d1B Bf7 B1e2 Bg8 Ng4 Kf7 Kd1 Nd4 Bg5 Be8 Ne5+ Kf8 Ba2 Bf7 Bh6+ Kg8 Bb3 Kh8 Ba2 Qc6 Bb3 Bc4 Ba2 Bb5 Bg8 Bf7 Qe7 Qc8 Qe8 Ba2 Qd8 Nc6 Kc2 b3 Bf3 Qcc7 Bfe2 Nd4+ Kd1 Nc3+ Kd2 Ndf5 Kc2 Qc4 Bf8 Bc5 Kb2 Nd4 Bh6 Nb1 Bf3 Bb4 Bfe2 Ba3#
3N1N1n/1r2Q3/1N2N3/2R4r/1pP1K1bn/1p2Qr1k/BPnbR1n1/Qr3N1q b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c5 d4 cxd4 Bd2 Kf7 Bc3 Ke8 Bb4 axb4 Kd2 Kf7 Kd3 Kf6 c4 Kg5 f4+ Kh4 a4 d5 h6 g5 h7 b5 f6 e5 f5 e4+ Kc2 g4 h3 e3 Kd3 e2 a5 b3 f7 b4 a6 g3 a7 g2 f6 Nh6 Rh2 Bg4 Ra5 Nc6 Nd2 Rb8 a8N Rb7 Nb6 Qa8 Rc5 e1R Qf3 Rb1 Ne2 g1N Qe3 Nf3 Nf4 Bg7 f8N Nf7 Be2 Bh6 N4e6 Kg3 h4 Bg5 Rg2+ Kh3 h5 Rf1 Qe4 Nh4 h6 Rf3+ Qe3 Qa1 Nd8 Qh1 Nf1 Bf4 Nfe6 Bg5 Kd2 d3 Bd1 d4 Bc2 Bf4 Bb1 Bg5 Ba2 Bf4 Kd1 d2 Ke2 d1N Kd3 Bg5 Ke4 d3 Re2 d2 Re1 Nd4 Re2 Rg8 h8N Nc2 Ng6 Nh8 f7 Rg7 f8Q Rh7 Qe7 Bf4 Qg1 Nde3 Ngf8 d1R Qf2 Neg2 Qe3 Rf7 h7 Rf5 Re5 Rb1 Rc5 Nf7 h8Q Rh5 Qe5 Nh8 Q5d4 Rd1 Qc1 Bd2 Qa1 Rb1 Qe3
b3Q2R/1b3QQQ/R1p2b1Q/4n1nK/2Pr2pN/1k1Nr3/2PRr1B1/3q1r1b b - - 0 1 illegal: Other
5R2/Q1R1K1b1/1NrQbp2/r1p1Q1QN/1R2Pn1n/nkP5/1b3q1b/2Q2nB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e5 d4 Nf6 Bh3 Ng8 dxe5 gxf4 g5 Qe7 Bf5 Qd8 Bg4 hxg4 Kf2 Ke7 e4 Ke6 h4 a5 b4 d5 c3 c5 h5 d4 g6 g3+ Kf3 a4 Kg4 f6 b6 g2 b5 a3 b7 a2 h6 f3 h7 d3 b6 f2 g7 f1N Nd2 Na6 b8Q Nb4 b7 Ne7 g8Q+ Kd7 e6+ Kc6 Nh3 Kb5 Rb1 a1B Nc4 g1B Nf4 d2 Nb6 Qd4 Qd6 Nf5 b8Q Ra5 e7 Qe3 Rh5 Bh2 e8Q+ Bd7 Qg5 Nh4+ Qee6 Rg8 Qc2 d1N h8R Nb2 Qa7 Nc4 R5h7 Na3 Nh5 Bh6 Rb2 Rc8 Rf8 Rc6 Qef5 Bc8 Rc7 Bg7 Rb3 Qe1 Be3 Bb2 Bg1 Qf2 Qcc1 Bd7 Na8 Ka4 Qfe6 Nf3 Kf5 Nd5 Kg6 Nh4+ Kf7 Bc8 Qee5 Nf4 Ke7 Be6 Rbb8 Nb1 Rb4+ Ka3 Rd4 Kb3 Nb6 Na3 Rb4+
4r1k1/p1bbR3/1brNqQqb/1KB2p1b/5P2/PQ2Q3/1QQ2n2/N1N3qB b - - 0 1 legal: proof: e4 h5 b4 f5 g4 hxg4 a3 c5 bxc5 d5 e5 Rh5 Nh3 Nd7 Ng1 Ndf6 exf6 Qd7 Ra2 Qd8 Rb2 Rh7 Rb4 Rh8 Re4 dxe4 Ke2 Kf7 c4 b5 d4 e5 h4 g5 f4 b4 c6 e3 Kd3 g3 c5 b3 Kc4 b2 c7 e2 h5 e1B c6 g4 h6 e4 h7 g2 d5 g3 d6 e3 d7 e2 Nd2 b1B Nb3 Bf2 Na1 e1Q Be3 Ba2+ Kb5 Bh6 Bc5 Bb3 Ne2 g1B Nc1 Qde8 d8Q g2 Q8d2 Q1e6 Qe3 Bd7 c8N Be1 Qdd3 Bd1 Qb3 Bh5 Nd6+ Kf8 f7 Rc8 Be2 Ba5 Bf3 Nf6 Rh4 Rg8 h8Q Ne4 Qhb2 Bc7 Rg4 Bf2 Rg7 g1Q Bh1 Qeg6 Qee2 Bd4 Qee3 Nf2 Rh7 Qee6 Rg7 Ke7 Rh7 Kf6 Rg7 Rge8 f8Q+ Qgf7 Qh8 Qg8 Re7+ Kg6 Bb4 Bdb6 Bc5 Qgf7 Qhf6+ Kh7 Qbd4 Kg8 Qdb2 Qfg6 Kb4 Bd8 c7 Ra8 c8Q Bdc7 Q2c2 Rb8 Qb7 Rbc8 Qb8 Bd8 Qbb2 Rc6 Ka4 Bbc7 Q8b3 Bb6 Kb4 Bdc7 Kb5
3nRB2/4qBpB/1bb3rp/n2Q4/N1P1r2P/b2r4/Npk1BQ2/Q3BK1n b - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 dxe5 f5 a4 fxg4 Ra2 Bd6 Rb2 Ke7 axb5 Ke8 b6 Be7 b5 Bf8 Rb4 cxb4 c4 Ke7 e4 Ke6 f4 a5 h4 d5 b7 h6 b6 g3 Qd2 g2 Qe2 d4 Qf2 b3 Be2 a4 Nc3 b2 Na2 d3 Bd2 Nc6 b8Q a3 b7 Nf6 Qba7 Qe7 b8Q Ng4 Qb5 Bd7 Bb4 Nd8 f5+ Kf7 f6 Ke6 f7 Bc6 Qaa4 Ra6 Rh3 Rb6 Re3 Rg8 Qd1 Rh8 Qa1 Ra6 Nh3 g1B Kf1 d2 Qc5 d1R+ Be1 Rd3 Nf4+ Kd7 Nd5 Ke6 Nb6 Rg8 Qg2 Nf2 Na4 Nh1 Qf2 Rb6 Nb4 a2 Qa5 Kd7 e6+ Kd6 Qa8 Ke5 Qb7 Kd4 e5 Qf6 e7 Rh8 e8B Qe7 e6 Ra6 Qb1 a1N Na2 Nb3 Qa1 Na5 Qa8 Qc7 Qb7 Ba3 f8B Qe7 Bf7 Qg5 Qd7+ Bd5 e7 Rg6 Qg3 Bf2 Bg8 Qf6 e8B Qf7 Bd6 Bc6 Bh7 Qf6 Bf7 Re8 Re5 Re6 Rb5 Re4 Bf8+ Qd6 Qf5 Qc7 Re5 Qa7 Re8 Qe7 Qb8 Ke3 Qbb5 Bg1 Bf2+ Kd2 Be1+ Kc2 Qbd5 Bb6 Qf2
K4brq/4QP2/BQprN1B1/q2RNr1p/4n1NP/6B1/qB1kb1p1/3B3n b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 gxf5 Ra4 Nh3 Ra5 Ng1 Ra8 a4 e5 d4 Bd7 d6 Qh4 d5 Qd8 Ra2 Be6 Rd2 Bc8 Rd4 exd4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 h4 h5 f4 g5 a5 g4 a6 b3 f6 g3 d7 b6 a7 d3 d6 b2 f5 d2 f7 Ke3 f6 g2 Qb3+ Kf2 e4 Ke1 e5 d1Q e6 Bb7 e7 Bd5 e8B Bb7 Nh3 Nh6 Nd2 b1Q Nc4 Na6 Bb2 Nf5 Ne5 Rh6 Nf2 Bf3 Nfg4 Be2+ Kc6 b5 Kb7 b4 Rh3 Qdc1 Rd3 Qg5 Rd5 Qa2 Qe3 b3 Qb6 Rc8 a8B Ng3 Ka7 Rg6 Bc6 Nh1 Ba4 c6 Kb7 Be7 f8Q Nc5+ Ka7 Rg8 Bg6 Ne4 f7 Qf6 Qe8 Bf8 Qe7 Qh8 Kb7 Bc4 Bd3 Kd2 Be2+ Bd3 Bd1 Ra8 Bb5 Ra5 Ba6 Qc7+ Ka8 Rc5 Qb8 Qca5 d8B Rb5 d7 Rc5 Bd4 b2 Qb6 b1R Bc7 Be2 d8N Rb4 Bb2+ Rd4 Ne6 Rb5 Nd3 Rc5 Bg3 Rb5 Rd8 Rf5 Nde5 Rd3 Rd5 Rd4 Rb5 Rd6 Rd5+
4q2n/b1Q3QN/RRrp1qr1/R4nRb/2p3pn/1Rr3Pk/1B2P2B/1B4K1 b - - 0 1 illegal: No proof kernel
Qk3n1Q/3BpK1N/2PbQ3/q1Q1r3/2Brrp2/1nq1RPQb/5pR1/6Bb b - - 0 1 illegal: No proof kernel
1r1B3N/b1rr1qN1/Qbb5/3kP1R1/1B2pq1N/1B2pQn1/1KpnP1N1/2N5 b - - 0 1 illegal: No proof kernel
2K1b3/3p1BQ1/2NP1Nnq/1R5N/1rbqp2b/1pRP1rn1/3N1kq1/3QN1R1 b - - 0 1 illegal: No proof kernel
3K2B1/1q1Np1P1/kn4r1/1N1pq1b1/1q1Pb1n1/p1NBBQN1/n6r/4N1QR b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 Ke2 h5 Ke3 a5 Kf4 d5 Ke5 Kd7 f4 b3 c4 b2 g4 a4 d4 a3 g5 h3 f6 h2 c5 h4 b7 Kc7 b6+ Kc6 f7 h3 f5 Bd7 g6 Bc8 f6 Ra6 Ne2 Kb5 c6 Be6 c7 Qe8 c8B Qd8 Ng3+ Ka5 Be3 Qe8 Nc3 b1N Bd3 Bf5 Qg1 Qb5 Be6 Bh6 f8N Qb4 f7 Bg5 g7 Nf6 Nd7 Be4 f8Q Rh4 Bf7 Ng4+ Ke6 Rh5 Ne5 Nd7 b8N Rh7 Nce2 Nc3 Nf3 Na2 Bg8 Rh5 Kf7 Rh8 b7 Rg6 Ke8 Nb6 Nd7 Rh5 Bb1 Ka6 Kd8 Rh8 Nc3 Rh4 Qd1 Rh8 Ne1 Rh7 Rg1 h1Q Qff3 Qh2 Rh1 Qe2 Qc1 h2 Bc2 Qeb5 Bd3 Rh8 Ne5 Rh4 Nf7 Rh7 Nd6 Rh5 Rg1 h1Q Qa1 Qh4 Rh1 Qh2 Qb1 Qe2 Qd1 Rh2 b8N+ Ka5 Nd7 Ka6 Bc2 Qc6 Ndb5 Qb7 Bd3 Qeb2 Ng2 Qe2 Qg1 Qe1 Nf1 Qg3 Ne1 Qe5 Ng3
q1bR1b2/r5Pq/4n3/1n1N3R/1p1k2BQ/1P1nRppQ/N2KbN2/3Rr1R1 b - - 0 1 illegal: No proof kernel
N1R2q2/3rp1N1/p4n1p/NNBb1K2/Q1br1N1P/bR3r1Q/3P4/n1Qq2k1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 cxd5 g6 a4 Nf6 axb5 Ng8 Be2 Qd6 Bg4 fxe4 f5 Qd7 f6 Qd8 Bf5 gxf5 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kd4 h4 c5 b4 h6 g5 e3 b6 a6 f7 e2 d6 e1R b7 c4 g6 c3 g7 c2 d7 Re5 b5 Qc7 d8Q+ Nd7 b8N Bb7 b6 Bd5 b7 Kd3 Na3 Ra7 Nb5 Nc5 Qd7 Nf6 g8Q Qc8 Rh3+ Re3 Ba3 c1Q Nc6 Nb3 b8N Bg7 Na5 Qf8 Bc5 Rf3+ Ke5 f4 Kf5 Qc2 Rc1 Na1 Ne2 Rc7 Qh1 Qd1 Qe8 Rb7 Nd7 Ra7 Nb6 Rd7 Qh7 Rg8 Na8 Bh8 Ned4 Rg4 Ne6 Ke2 Qh2+ Kf1 Ng7 Rb3 Re3 f3 Qh3+ Kg1 Rc4 Ra3 Rb3+ f2 Rc1 Rd4 Qg6+ Ng4 Qc6 f1B Rc2 Bfc4 Qc7 Qg8 f8N Nf6 Ng6 Qf7 Nf4 Qf8 Rb4 Rg3 Rb3 Rf3 Na3 Rd6 Qa4 Rd7 Nb5 Be2 Bb6 Ne8+ Kg6 Bf1 Rc5 Re4 Nf5 Bb2 Ng7 Nf6 Kf5 Ba3 Rc1+ Rd4 Qc2 Qg8 Qb1 Qh8 Rc8 Bfc4 Qc1 Qf8 Bc5
1r5R/2NK4/1pN3r1/nQb1QN1p/1nb3n1/RQP3NP/Nqr1k1pq/4B3 b - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 c5 dxc5 e6 b4 axb4 Bg2 Nc6 Be4 Nb8 Bd5 exd5 Kd2 Kf7 Kd3 Kf6 Kd4 g5 a4 b3 e4 d6 f4 g4 e5+ Kf7 e6+ Kf6 c3 b2 e7 b6 e8Q h6 a5 g3 c6 g2 a6 Be6 c7 Nd7 c8N Nc5 a7 Nd3 Bd2 Ne7 Be1 Rb8 a8N Nb4 Nc7 Rg8 Ra3 Rg6 Nd2 b1Q Na7 Qb2 Qb3 Bf7 Ne2 Nec6+ Ke3 d4+ Ke4 d3 Nc1 Be7 Na2 Na5 Qb5 Qh8 Nc6 Bc4 Kd4 d5 Ne4+ Kg7 Ke5 d4 f6+ Kf7 f5 d2 Rg1 d1N h3 h5 Rf1 d3 Rf3 d2 Rd3 Rg7 Rd8 Bc5 Rc8 Qh6 Rg8 Rg6 Rh8 Be3 Kd6 Bc5+ Kd7 Qf4 Na6 Qh2 Nc7 Nf2 Ng3 Bd5 Ne4 d1R Ng3 Rbg8 Ne4 Kf8 f7 Kg7 f8N Rd2 f6+ Kf7 Ra4 Rc2 Ra3 Ng4 Nfe6 Re8 Ned4 Rb8 Nf5 Bc4 Neg3 Rh6 Q3a4 Kg6 Qb3 Kg5 Ne4+ Kf4 f7 Kf3 f8Q Na6 Qe8 Nb4 Qe6 Rg6 Qe5 Ke2 Neg3+
1K2n2k/QB1p3q/2R1rQ1B/n2Ppp1P/1bR3q1/2Rb4/R2B2NR/r1q3b1 b - - 0 1 illegal: No proof kernel
2b4q/1Q1q1Q1p/n2Ppr2/2prNkRB/1R5P/K3bnR1/4rbQ1/1R1R2B1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 g5 a4 d6 axb5 d5 Nc3 Nc6 Nce2 Nb8 cxd5 fxe4 f5 Nf6 Nf4 gxf4 Ke2 Ng8 Kf2 Nc6 Ke1 Nb8 g4 Kd7 d4 a5 Kd2 c5 Kc2 e6 Kb3 e3 h4 a4+ Ka3 e2 b4 e1R b6 f3 b5 f2 b7 Qe7 b6 Nc6 b8R Qd8 d6 Bb7 g5 Be7 f6 Ra6 d5 Ne5 g6 Bc8 b7 Re2 f7 Nf3 f8Q Nf6 g7 Ne8 g8R Bg5 Qc2 Be3 Rb1 Nc7 Rh3 Qf6 Bg2 f1Q Rg5 Qd1 Rhg3 Rb6 Bh3 Na6 Bg4 Qe5 Qf6 Rf8 Bh5 Rc6 Qff5 Qh8 Qf7+ Kd8 d7 Rd6 Qcg6 Kc7 d8R+ Rd7 Qfg8 Rf6 Q8f7 Kd6 Qe4 Bf2 Be3 Qd2 Qg4 Qd4 Qh3 Qd2 Qg2 Qd1 R5g4 Ke5 Rgb4 Rd6 Rdg8 Qd4 Rd1 Kf5 R8g4 Qc4 Rg7 Qb5 Rbb1 Qd7 Bd4 Ne1 Nf3 Be3 Ne5 Nf3 Ra8 Bf2 b8Q Be3 Qb2 Bf2 Rb8 Be3 Ka2 a3 Rb4 Bf2 Kb3 a2 Ka3 a1B Qb3 Bc3 R7g6 Bd2 R6g4 Rb6 d6 Bde3 Qd5 Rb5 Qb7 Rb6 Rc4 Rbb2 Rb4 Rbd2 Rg8 Bf4 Be3 Rd5 Bd4 Be1 Bf2 Be3 Bg1 B1f2 R8g5+
4QNbk/n1K2pn1/B3P1q1/2b4Q/qRb2P1R/1R5r/R3NppQ/2R1r2n b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 b5 axb5 e5 f3 e4 Be3 Be7 Bf2 Bf8 Kd2 e3+ Ke1 exf2+ Kd2 Rh7 Kd3 Rh6 Kd2 Rh8 Kd3 d5 h4 a5 e4 g5 b4 a4 c4 g4 e5 a3 h6 g3 b6 a2 c5 g2 h7 Ra4 h5 Nc6 b7 Bg7 b8R Kf8 f4 Be6 b5 Na7 b6 Nh6 c6 Nf5 c7 Ng3 Rh4 Nh1 c8R Bh6 b7 Kg7 Nd2 Qb6 Rac1 a1Q R8c2 Ra6 Be2 Qa4 Ndf3 Re8 Ra2 Kh8 Bf1 Bf8 Ng5 Bc5 Qf3 Qd6 Ne2 Rb6 Qg3 Rb1 Qh2 Rb3+ Rc3 Qdc6 Rc8 Qb6 b8R Qd6 Rb4 Ra3 Kd2 d3 Rcb3 Qda6 Kc3 d2 Rc6 d1B Rc7 Qd6 Kd3 d4 Ke4 d3 Rc6 Bb6 Rc1 Bc4 Kf5 d2 Ke4 Rc8 e6 Qd3+ Ke5 Qg6 Kd6 Bc2 Rg4 Rb8 Rh4 Bc5+ Kc7 d1N Rca1 Kg7 Rc1 Ne3 h6+ Kf8 Rcb1 Nf5 Rc1 Ng7 h8Q+ Ke7 h7 Kf6 Rbb2 Rh3 R2b3 Rd8 Qe8 Rd1 h8Q Re1 Rb6 Qh5 Rb7 Bh7 R7b4 Bg8 Qh6+ Qg6 Qh5 Nf5 Nh7+ Kg7 Ng1 Kh8 Be2 Bd5 Ba6 Ng7 Ne2 Bc4 Nf8+
bQQ2b2/K1pnN2B/B2Qpqn1/q1Q1Br2/r1R2nkq/Qp2P2P/8/R7 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 g6 f5 Bd7 Na3 Be6 Nc2 Bd7 Ne3 Be6 fxg6 Bd7 g5 Bc8 Ng4 hxg4 d4 Kd7 Kd2 b5 Kd3 f5 a4 e6 d6 f4 a5 f3 e3 b3 d5 b4 Kc4 b2 Kb5 b1N a6 f2 a7 g3 g7 b3 g6 g2 Qd4 Nc6 Bb2 Nf6 g8Q Be7 g7 Nd2 Nh3 g1Q Nf4 Ne5 Qc5 Ndc4 Ng6 Bf8 Ne7 Ng6 Be5 Nh5 Rc1 Nb6 Rc4 Qg5 Ka5 Rb8 a8Q Nhf4 Bd3 Rh3 Ra1 f1Q Kb5 Qf2 Qaa3 Bb7 Be2 Ba8 Ka6 Qf1 Ka7 Rh5 Qh8 Qe1 g8B Qf6 Bh7 Rf5 Bf1 Ke8 d7+ Kf7 d6 Qeh4 Be2 Qe8 d8Q Nd7 Qc8 Rb4 Rc3 Ra4+ Ba6 Qd8 Rc4 Qe1 Qb8 Qa5 Qc8 Nb6 d7 Qh4 Nc6 Qdf6 d8Q Nd7 Ne7 Qg7 Bd6 Kf6 Be5+ Kg5 Qg8 Qf6 Qb8 Nb6 Qdd6 Nd7 Qc8 Kg4 Qb8 Bh6 Qgc8 Bf8 h3+
7B/Q3nN2/1R1p1k2/pR1RbN2/1qnr4/2rNQPRK/P1b1R2p/2r3qn b - - 0 1 legal: proof: e4 c5 d4 e5 h4 f5 b4 g5 bxc5 gxh4 Bd3 Na6 dxe5 Ke7 e6 Nb8 e5 Ke8 Be4 fxe4 Kf1 Ke7 g4 h5 Kg2 b5 c4 a5 g5 d6 g6 b4 c6 b3 f3 e3 c5 b2 g7 e2 c7 e1R c6 Ra7 Nc3 b1N Ne4 Nh6 g8R Ng4 Nh3 Rb7 Neg5 Bh6 Nf2 Qe8 Kh3 Bg7 Nd3 Nd2 Bb2 Rb3 Rb1 Nc4 Nf7 Rc3 Qc2 Rf1 Qf2 Rfc1 Qa7 Qd7 Rd1 Nf2+ Kg2 Bb7 c8R Nh1 c7 Be4 Kh3 Nc6 Rb8 Rh7 c8Q Qb7 Qe3 Bh8 Rg3 Qb4 Rb5 Rg7 Rb6 Rg4 Qb8 Bh7 Qa8 Rd4 Ba1 Qa4 R1b5 Qb4 Kh2 h3 Qa7+ Ke8 e7 h4 Qb8+ Kd7 e8N Ke6 Qa7 Ne7 Rd2 Kf5 e6+ Be5 Ng7+ Kf6 Nf5 Bg6 Rd1 Bh7 Kg1 h2+ Kg2 Nc8 e7 Bg6 e8R Ne7 Ng7 Be4 Kh3 Bg6 Nf4 Be4 Nf5 Bc2 Kg4 h3 Kh4 Re4 Rdd5 Rd4 Kg4 Nf2+ Kh4 h1Q Bb2 h2 Ba1 Ne4 Kh3 Qe1 Nd3 Qg1 Rg2 Ng3 Re2 Rg4 Rg8 Rd4 Rg7 Nh1 Rg3 Bd1 Bb2 Bc2 Nh4 Rb3 Nf4 Rd2 Rg4 Bc3 Nhg6 Kg7 Rg3 Bf6 Be5 Rd4 Nd3 Rc3 Nh4+ Rg4 Bf4 Bd4 Bh6+ Kf6 Nf5 Be5 Bg7+ Ke6 Bh8 Rd4 Ng7+ Kf6 Nf5+
1KR3q1/1pRQ1pn1/1P6/Rn3b2/2r1B1N1/1k1qrPQp/rb2RB2/1B2bR2 b - - 0 2 legal: proof: d4 a5 c4 g5 b4 e5 dxe5 Be7 h4 Bd6 b5 Bf8 Nc3 gxh4 Nd5 d6 Nb4 d5 cxd5 axb4 Kd2 Ke7 Ke3 h5 Kf4 c5 a4 h3 g4 h4 e4 b3 d6+ Ke6 g5 b2 b6 b1R f3 c4 d7 h2 g6 c3 a5 c2 a6 Nc6 a7 Nb8 g7 Nf6 g8Q Rb5 Be3 c1B Qg3 Bd6 Ra5 Na6 Nh3 Bda3 Nf2 h3 Bd3 Bd6 Rf1 h1Q Ng4 Rh4 Bb1 Qf8 d8R Bda3 Rd7 Be7 Rc7 Bb2 Bf2 Rb3 Qd4 Qg8 Qd8 Rb8 a8R Bb4 Qd1 Bd7 Qd3 Re8 Rac8 Be1 Qd4 Ra3 Qd1 Ke7 e6 Ra2 e5 Nh5+ Ke4 Ng7 Kd5 Kf8 Kd6 Qg2 Nf6 Rc4 Ng4 Qh7 Qd4 Qd3 e7+ Kg8 Ra3 Bf5 e6 Kh7 Ra5 Kg6 Ne5+ Kf6 Qd5 Rg8 e8B Qg1 Bc6 Re8 Qd4 Qg2 Be4 Qg1 Rcc5 Nc7 Kd7 Nb5 R5c7 Re7+ Kd8 Qg2 Qd7 Qg1 Rca8 Qg2 Kc8 Qg1 Kb8 Re8+ Qc8 Qg2 e7 Qg1 Qd8 Ke6 Qh2 Qg6 Ng4 Qh7 Qg2 Qg8 Qg3 Qd6 Bed3 Kd5 Qc8 Qa3 Bdc2 Qe3 Be4+ Kd4 Qd8+ Kc3 Qc8 Qd3 Qd8 Rf8 e8R Kb3 Re5 Re8 Qc8 Rd8 Re8 Rd6 Qd7 Re6 Rec8 Nc3 Re5 Nb5 Ra5 Re8 Bc6 Re6 Re2 Re3 Be4
1b4n1/r1n1b3/RRpNR1N1/R3r2n/1R4Qp/1n2pb1P/K2Q3P/1Bk3Nq b - - 0 1 illegal: No proof kernel
R1N2Qk1/2b1r2n/n2BpBKR/p3P1RQ/P3pQ2/R2b1b2/qb3n2/3r1R2 b - - 1 2 illegal: No possible last move, all moves rejected
rn4KB/PnQqb3/bp2R2p/2b4r/1B1N1p1k/rB3b1P/1Q2R2B/B3R3 b - - 0 1 legal: proof: e4 a5 c4 f5 f4 g5 b4 d5 cxd5 axb4 Nc3 Kf7 Nce2 Ra3 exf5 Ke8 f6 Ra6 f5 Ra8 Nf4 gxf4 Ke2 Kf7 Kf3 c5 Kg4 e5 Kh5 e4 a4 c4 g4 b3 d4 b2 a5 b1B g5 h6 h3 c3 g6+ Ke8 f7+ Ke7 f6+ Kd7 d6 Ke6 a6 Kf5 d7 e3 g7 c2 d5 b6 a7 e2 d6 e1R Nf3 Be7 f8B Bb7 f7 Bg5 Qd2 Nc6 Bb2 c1B Rh2 Bh4 Bc4 Ba6 Re2 Bg5 Nd4+ Kf6 Bb3 Qc7 d8B+ Nge7 g8R Bbd3 d7 Be4 Rg7 Na5 Rg6+ Ke5 Qc3 Nec6 Bc5 Nb7 f8B Be3 Rb1 Rc1 Ba1 Rg8 Qb2 Rc3 Rbe1 Be7 Bb4 Nb8 Bg7+ Bf6 Bh8 Bf3+ Rg4 Rf8 Kg6 Ke4 Kh7 Be7 Rgg1 Rf5 Rg6 Rh5 Kg8 Qc8 Nb5 Kf5 Re6 Kg5 Nd4 Kh4 Rd6 Qc6 Re6 Bg5 Bdf6 Rd3 d8Q Qd7 Qc7 Bf2 Bfe7 Bf6 Bec5 Be7 Bc4 Ra3 Bb3 Bg1 Nc6 Bh2 Bg1 Bg3 Bh2 Bf2 Nd4 Be3 Nc6 B3c5 Nd4
2kbQ1Q1/Kb2bppr/1p2q1Br/N3r3/P6n/B4P2/B1B1b1Nn/1R1N3B b - - 0 1 legal: proof: d4 a5 g4 c5 dxc5 e5 b4 h5 bxa5 hxg4 a4 Ra7 Ra3 Ra6 Rd3 Ra8 Rd4 exd4 Kd2 d5 Kd3 Kd7 e4 g3 h4 g2 c4 b6 c6+ Kc7 e5 Qd6 c5 Nh6 a6 Nf5 e6 Be7 a7 Qh2 h5 Rh7 h6 Bd6 e7 Bd7 e8N+ Kc8 c7 Qh5 Nh3 g1B Ba3 Qg5 Qe1 Bgh2 Nf4 Nc6 Nc3 Qh4 Ng2 Bhf4 Nd1 Rh8 h7 Qh3+ f3 Rb8 a8B Nh4 Qe3 Be6 Qe2 Be7 Nd6+ Kd7 Qe1 Rbe8 Nc4 Kc8 Na5 Bfg5 Qe5 Bd7 Qe2 Qe6 Qe4 Rhg8 h8Q Rgf8 Qhh7 Rh8 Qg8 Rh7 Qe1 Nb8 Rg1 Bc6 Qe2 Bb7 Qe5 Kd7 c8B+ Kd8 c6 Nd7 Rh1 Nf6 Qe2 Ng4 Qe1 Qe5 Bf5 Nh2 Bg6 Kc8 c7 Qe6 Qe5 Bd8 Rg1 Bge7 Qe3 Kd7 c8B+ Kc7 Bd7 Rh6 Bb5 Kc8 Bc4 Rh7 Ba2 Rh6 Kd2 d3 Kc3 d2 Qe2 d4+ Kd3 Qe5 Kc4 Qe6+ Kb5 d3 Rh1 Bc6+ Ka6 Bb7+ Ka7 Rh7 Nf2 d1B Qe3 Be2 Nd1 d2 Rg1 Bba6 Bae4 Bb7 Bc2 Rh6 Nf4 Rh7 Bg2 Rh6 Bh1 Rh7 Nc3 d1R Ng2 Rd5 Ra1 Rdh5 Nd1 R7h6 Rb1 Re5 Qh7 Rh8 Qg8 R8h7 Qe4 Reh5 Qe5 Rf5 Qb5 Re5 Qbe8
3n1B1B/Qp2q1r1/nQNNP1p1/pbr4Q/5K1R/1PB2BB1/5b2/rk1b1b2 b - - 0 1 illegal: No proof kernel
1q1n4/1Q2QbN1/N4ppK/r4rN1/3p2NR/kB1Q1q1n/1NPP3q/3qB1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ra2 Qb6 Rb2 Qg6 axb5 Qf5 b6 Qg5 b5 Qd8 Rb4 cxb4 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 e4 a5 h4 g6 b7 f3 h6 f2 b6 b3 e5 Kb4 h5 d5+ e6 d4 h7 a4 h6 b2 Qe1 a3 Nc3 b1Q Rh4 a2 Nd1 a1Q Nb2 Qd5 Nf3 Ra3 Bc4 f1Q Nh2 Nc6 b8N Na7 b7 Qc6 Kg5 Qch1 e7 Be6 e8N Qff3 Ng4 Qh2 Bb3 Nc6 Ng7 Nge7 Qg3 Ra7 Na6+ Ka3 b8Q Nd5 Qb7 Nd8 Qe5 Rg8 h8Q Nf4 h7 Bd6 Kh6 Nh3 Qe2 f6 Qd3 Re8 Qf8 Bf7 h8N Re5 Qe8 Rf5 Qee7 Be8 Nf7 Ra8 Ng5 Bf7 Qe1 Bg3 Qee3 Bf2 Qe8 Bg1 Qed7 Rc8 Qe7+ Rcc5 Na4+ Qbb2 Qc6 Qa2 Be6+ Qb3 Qb6 Ka2 Qba7 Qb1 Ba3 Rc4 Nb2 Ra4 Bd6 Raa5 Bg3 Qc1 Be1 Qcd1 Bd7 Qbb8 Ba4 Rfc5 Bb3+ Ka3 Qe6 Rd5 Qb7 Rf5 Qee7+
3RRK1R/1Nr1rpPb/qQ1R3b/p1B3p1/2Q4N/Pq1n2q1/R1Q1n3/k3q3 b - - 0 1 legal: proof: f4 c5 g4 e5 d4 c4 dxe5 c3 g5 Qa5 bxc3 Qb6 c4 Qd8 c5 Nf6 f5 Ng8 Bg2 g6 Be4 gxf5 g6 f4 g7 Be7 Bd3 Bf8 Bg6 hxg6 Kf2 Ke7 Kf3 Ke6 Kg4 b5 e4 d5 c4 a5 h4 d4 h5 d3 a3 b4 h6 f3 h7 d2 c6 f2 c7 f1Q c5 b3 c6 b2 Qc2 d1Q+ Nf3 Q8d6 Kg5 Qh3 Ra2 Q1d3 Nh4 Qb4 Nc3 b1Q Na4 Nh6 Rb2 Ra7 Rd1 Nd7 Be3 Qa6 Bc5 Bd6 Qb3+ Qbc4 Qb6 Re8 h8R Re7 Rdd2 Bb7 c8Q Qe1 c7 Nf5 Rd4 Ng3 Kh6 Nh5 Kh7 Qcb3 Kg8 Nf4 Rd3 Ne2 Rdd2 Qac4 Rd4 Bc6 Qca6 Rb7 c8Q Rc7 Qab5 Qcd3 Qc4+ Bd5 Qc2 Qhg3 Qca6 Qdb5 Rd2 Qc6 Qac4 Qcb5 Rd1 Qa6 Rd4 Nb8 Kf8 Nc6 Rd1 Nb4 Rd2 Nd3 Rd1 Kd7 Rd2 Be6 Rd1 Bf5 e6+ Kc8 Rd2 Bf4 e5 Bh6 Rd1 g5 Rd2 Red7 e7 Bg6 e6 Bh7 Qd6 Kb7 e8R Re7 Rd8 Rcd7 Qdd4 Kc6 Qf6 Rb7 Qf2 Rec7 e7 Ra7 e8R Re7 Qe6+ Kb5 Qf1 Rac7 Rd1 Qc3 Qb6+ Kc4 Rd2 Ne5 R2d6 Nd3 Be3 Qe1 Nc5 Qg3 Nb7 Qe1 Qd1 Qe5 Qb1 Kc3 Bc5 Q5g3 Qf4 Qc2 Rb5 Qb2 Qd1 Qb4 Qc4+ Kb2 Qa4 Ka1 Qac2 Qbc3 Rb2 Qb3 Ra2+
1Kb2Q1q/nQ6/2NprqQ1/P1qQb1Q1/6p1/q3Rrk1/3Pp1Nn/2RBR3 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 axb4 Bb5 c4 Bb2 c3 Bf1 cxb2 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Kd5 Kf4 c4 e5 h4 g5 a4 b5 a5 b3 c5 g4 h6 e4 h5 e3 c6 d6 f6 b4 f7 Qe8 h7 Nd7 c7 Nh6 Kc6 Rg8 h8R Rg6 Nc3 b1Q Nb5 b2 Ne2+ Kf3 Na7 b3 Qc2 Qe1 Rc1 b1Q Nf4 b2 Ng2 Bg7 f8Q+ Nf5 h6 Rb8 h7 Qf7 Qd8 Rb3 Qg5 Re6 Re8 Qa1 h8Q b1Q Qg8 Ng3 Qcg6 Nb6 Rg1 Qbf5 Be2+ Ke4 f4 Qff6 Rf1 Qa3 Bd1 e2 Rh1 Qf2 Re1 Kf3 Q8f7 Q5e5 f5 Nf1 Qg8 Qf8 f6 Nh2 f7 Qf6 Re7 Qd8 f8Q Kg3 Qd5 Q2f5 Qg5 Bh8 Q8g6 Rf3 Re8 Na4 Re7 Nc3 Kb6 Nb5 Nc6 Na7 Re8 Bd7 Kb7 Bc8+ Kb8 Qc2 Re7 Qcc5 Re8 Qfa1 Re7 Be5 Re8 Qf6 Re7 Bd7 c8Q Q1c3 Qb7 Bc8 Rf7 Qh8 Rf4 Qcb2 Re4 Qbd4 Re3 Qf4 Rcc3 Qff6 Rc1
2K2Q2/1p1Q2Rp/3Q1Qn1/kB6/1Q2r1q1/1P1r1nN1/r2p1NPR/1Nbq1b1r b - - 0 1 legal: proof: h4 c5 e4 a5 d4 cxd4 b3 f5 exf5 g5 hxg5 a4 Bb2 a3 Rh5 axb2 Rh2 Nf6 Rh1 Ng8 Ke2 d5 Kd3 Kd7 a4 Kc7 f4 Kb6 c4 e5 f6 Bd7 f5 Bc5 a5+ Ka6 g6 Ra7 g7 Ra8 f7 Qc8 f8Q Ba3 c5 Bb4 c6 Be1 c7 Bd2 f6 Kb5 f7 Bc1 a6 Ne7 g8N Ng6 a7 Nc6 Ne7 Be6 Qh6 Rd8 f8Q Bd7 Nf5 e4+ Ke2 e3 Kf3+ e2 Kg4 d3 Ra5+ Kb6 Nh3 e1R Nf2 d4 Rh2 d2 Bb5 d3 Qb4 Nce5+ Kg5 Re2 Kf6 Nf3 Ng3 Re4 Qf1 d1R Qhf8 d2 Qfd6+ Bc6 Ra4 Qh3 c8Q Qg4 Qcd7 Rde1 Qe2 Rh1 Qf1 Rac8 a8Q Rc7 Na3 b1Q Qb8 Qc2 Nb1 Qd1 Qf8 Rcc8 Qb8d6 Ra8 Kf7 Nge5+ Ke7 Ra6 Qdf6 Ng6+ Kd6 Bd5 Qd3 Bc4 Qd5 Bf1 Qde6 Ka7+ Kc7 Ra5 Qed6 Ra6 Ra2 Ra3 Rc2 Ra2 Bc6 Ka6 Rc5 Rde8 Rg5 R8e5 Kc8 Rd5 Nf5 Rd3 Ng3 Nh8 Rg7 Ng6 Qbd4 Ka5 Bb5 Nfe5 Qc4 Nf3 Qcb4+
KRQ1br2/bp4Qn/3RP3/4pbqQ/2r1qR2/1BN1nQp1/1P2b2B/2kQ4 b - - 0 1 illegal: No proof kernel
nq1rRqRR/p1QB2q1/P1K1R1Q1/4NpB1/p1k2Pq1/8/R1bqn3/Q5b1 b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 e4 Be6 h4 gxh4 a5 Kd7 e5 Bh3 d6 Ke6 d5+ Kf5 Nc3 Na6 Na4 bxa4 Be2 Rb8 Bc4 Kg6 Bf1 Bc8 d7 Rb6 Qd2 Kg7 Qd1 Rd6 exd6 Kf6 Ke2 Ke5 Kd3 c5 Kc4 h5 Kb5 c4 b4 h3 g4 h4 f3 c3 g5 h2 g6 c2 g7 h3 Bd3 Kd4 f4 e5 Qh5 e4 Ra2 e3 Kc6 e2 b5 e1Q b6 Qee7 b7 Nc7 b8Q Na8 a6 Nf6 g8R Ne4 Bb5 Nc3 Qg6 Ne2 Ba3 c1Q+ Bc5+ Kc3 Nf3 Qd2 Re1 h1Q Ne5 h2 Qc7 Qf3 Bf2 h1Q Bh4 Qg4 Bg5 Bg7 Re8 f5 Rg8 Qdf8 d8Q Qh6 d7 Qb4 d6 Qbb2 Qdf6 Bb7+ Kc5 Bh1 d8R Be4 Re8 Bc2 Bd7 Qb8 Kc6 Kd4 Nd3+ Kc4 Qa1 Bd4 Ne5+ Kb3 Re6 Qhg7 Rh1 Rh3 Rh2 Rd3 Rhh8 Kb4 Be8 Bc5 d7 Bg1 d8R Kb3 Bd7 Rd5 Nf7 Kc4 Rde8 Rd3 Bc8 Rd8 Bd7 Kb3 Ne5 Kb4 Nf3 Kc4 Ne5+
1b2kr2/N3NBb1/1N1r1n2/Q2pq3/K1Q1p3/Bp1PBN2/rP1r3R/1bN2q2 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 g4 hxg4 Na3 b4 Nb1 Nc6 Bg2 Nd4 Bh3 Ne2 Bf1 Nd4 d3 Nb5 axb5 c5 Ke2 c4 Ra6 c3 Re6 Nh6 Ke1 Kf7 Re2 Ke8 Rd2 cxd2+ Ke2 Ng8 f4 a5 h4 g5 c4 e5 f6 d5 b6 a4 f5 b3 c5 a3 f7+ Ke7 b7 e4 b8N a2 h5 a1Q h6 g3 h7 g4 c6 g2 f6+ Ke6 c7 g3 Nc6 Kd7 Nf3 g1B Nc3 g2 Na7 Bgc5 Qe1 d1R Rh2 g1R Be3 Qa2 Bh3+ Kd6 Be6 Qa1 Na2 Rg6 Nc1 Qe7 Qa5 Bg7 f8N Rd2+ Ke1 Bb6 f7 Nf6 Nd7 Rf8 h8Q Qe8 Qh3 Ke7 Qg3 Bd4 Nb6 Be5 Qg5 Bd7 c8N+ Kd8 Ne7 Bb8 Qe5 Bc8 Qd4 Bd7 Bh3 Bg4 Qc4 Bh5 Be6 Rh6 Ne5 Bd1 Nf3 Rg6 Bg4 Rh6 Bh5 Bc2 Bg6 Bb1 Bh5 Rg8 f8B Rgh8 Bf7 Rg8 Nf5 Qe5 Ba3 Rf8 Ne7 Nh7 Rg2 Rd6 Rh2 Nf6 Bf4 Rd1+ Ke2 Rd2+ Ke3 Qf5 Kd4 Qh5 Kc5 Qe5 Be6 Ke8 Kb5 Ba2 Ka4 Qb1 Ne2 Qf1 Nc1 Bb1 Be3 Qg1 Qaa6 Re2 Ka5 Qh5 Nac6 Rd8 Bac5 Rd6 Kb5 Qg2 Qa2 Ra6 Na7 Qe5 Qaa4 Qf1 Bf7+ Kd8 Qab4 Ra2 Qa5 Rg2 Ba3 Rd2 Be6 Ke8 Ka4 Qf5 Bg8 Qe5 Bf7+
2Q2n2/npRnK3/B1p1N1p1/1q5B/qQP1rbBB/1P2Bk2/R1nq3R/2r5 b - - 0 1 illegal: No possible last move, all moves rejected
b2nn1B1/pB1NQpp1/B1nq4/5QP1/4PQ1B/2N1pr1r/1K3br1/3RB2k b - - 0 1 illegal: No proof kernel
Bb1N1knb/2N1p3/5pQ1/1nQP1b1r/1rN4p/B2N2qN/p3PB2/2R2K1n b - - 0 1 illegal: No proof kernel
3N1b1k/1Q3p2/1N2nn2/B1Qr1qqp/KR1BB1p1/4B1Pp/1N1n3P/B1r3b1 b - - 1 2 illegal: Other
4R3/qB2KpQ1/1qNRQ2P/1pk1prNN/r2RPp1R/3b3b/2Rb1n2/n7 b - - 0 1 legal: proof: f4 a5 g4 g5 b4 c5 bxa5 h6 d4 Ra7 dxc5 Ra8 Bb2 Ra7 Bf6 gxf4 g5 Ra6 g6 Ra8 Bg5 hxg5 Kd2 d5 Kc3 Kd7 Kd4 Kc6 Ke5 b5 h4 e6 c4 d4 a4 d3 h5 g4 h6 d2 g7 g3 a6 g2 a5 Qe8 a7 Qe7 a6 Qb7 Nf3 g1Q Ng5 Nf6 g8Q Rh7 Qb3 d1B Nd2 Bc2 Ra4 Qb6 Bg2+ Nd5 Nf1 Bd1 Qg7 Qa5 Rh4 Qd2 Ng3 Qa5 Nh5 Kc7 c6 Kb6 c7 Nc3 Kf6 e5 Bb7 Nc6 e4 Bh3 c8N+ Kc5 Ne7 Nb4 Nc6 Qb6 Qa2 Nc2 Qb3 Rc8 a8R Na1 a7 Bc2 Rb8 Qd4 a8R Nd1 R8a6 Bd3 Rba8 Rc7 Re8 Nf2 Qa2 Rc8 Qb3 Bd6 Qa2 Bc7 Ke7 Ra8 Qb2 Qc3 Nb8 Qca5 Qh8 Rg7 Nh7 Rg5 Qa2 Qg6 Qg7 Rf5 Ng5 Kd4 c5+ Kc3 c6 Bb6 c7 Be3 Rd4 Bd2 c8R+ Qc6 Rdd8 Kb4 Qe6 Qa3 Rd5 Qc5+ Rad6 Qb6 Rc2 Qa4 Rb2+ Kc4 Rd4+ Kc5 Nc6 Qaa5 Rb1 Ra6 Rh1 Qa7 Rb1 Q5b6 Rb2 Ra4 Rc2+
nB2R3/PQ4Rp/1pB2pr1/1PB2nq1/1B5b/kBK1p1r1/3NbQQ1/5q1q b - - 0 1 illegal: No possible last move, all moves rejected
4n2N/q2ppr2/k2q4/2p2b1p/K1n2RN1/1Q1rbBRP/PQQ3Q1/q3QR2 b - - 0 1 illegal: No proof kernel
7K/qnQR4/p2bN1p1/1p1qp1k1/1qQ1r1PR/1bnNP2B/3R2Nr/5RR1 b - - 0 2 illegal: No proof kernel
bKN1b2n/2PpN3/6rk/N2p1qQN/2p5/1R1Rn1p1/r1PRNq1b/Q3B3 b - - 0 1 illegal: No proof kernel
4b1k1/p1P1b3/Nn2pQN1/1N4pp/Q1NNB3/r1q1P1Q1/R1qB1Knn/6r1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 g4 f6 b4 Na6 g6 Bg7 g5 Bf8 g7 Nc5 g6 Na6 Ra3 Nb8 Rg3 Qb6 Rg2 Qd8 Rg5 fxg5 c4 h5 f4 d5 f5 e6 e3 d3 c5 d4 f6 d2+ Kf2 d3 c6 Qd5 f7+ Ke7 b6 Qd6 b5 Qd7 b7 Qd8 b6 Bd7 Qa4 d1Q Ne2 d2 Nec3 Nf6 g8Q Nd5 g7 Rh7 Bd3 Nf4 Be4 Ng2 Nb5 Qc7 Rh2 Be8 N1a3 Nd7 b8N Qc2 b7 Nb6 Na6 Rd8 b8N Rd3 Nc4 Ra3 Qh8 Rh6 g8Q d1N+ Kg1 Rf6 Bd2 Qe5 c7 Rf3 Qgg7 Qec3 Qe5 Nf2 Qg3 Ng4 Qhe5 Rf5 Qef4 Kf6 Nc6 Kg7 Ncd4 Be7 f8N Kg8 Ng6 Rd5 Qf6 Rc5 Rh1 Nh2 Kf2 Rd5 Ra1 Rf5+ Ke2 Rf1 Ra2 Rg1 Kf2
4b2K/2k2PB1/QQ2Q3/pQ1p1qB1/3R3b/2N3nn/1rpP1p1Q/q1bB1Rr1 b - - 0 1 illegal: No possible last move
3n2QN/3Qp1qr/5b2/2p1k3/3prpR1/nB2NQ1Q/KbPP1R1q/4Q1nR b - - 1 2 legal: proof: e4 b5 a4 f6 axb5 f5 f4 fxe4 f5 g5 b3 Bh6 Bb2 Bf8 g4 Bb7 Be5 Bd5 Bf4 gxf4 g5 Bf7 h3 Bc4 Na3 Be2 Nb1 Bg4 hxg4 Bg7 Ne2 Bh6 Ng1 Bf8 b6 Kf7 f6 Ke6 b7 c5 b4 a5 b5 h5 b6 d5 f7 a4 g6 e3 g7 a3 g5 d4 g6 a2 Nc3 h4 Bc4+ Qd5 Qf3 h3 O-O-O a1B Kb1 h2 Rf1 e2 Nd1 e1N Nh3 Nc6 b8Q Na5 b7 Bb2 Qc7 Nh6 g8R Ra6 b8Q Rh7 Bb3 Bg7 f8Q Nf7 Ka2 Bf6 g7 Nd8 Rf2 Rd6 Qf7+ Ke5 Qd7 Nc4 Ng5 Na3 Q7h5 Qf7 Qhh3 Qf8 Qba8 Re6 Ne3 Qf7 Qe2 Nf3 Qe1 Ng1 Qaf3 Qf8 Rh8 Qf7 g8Q Qf8 Ne4 Qg7 Ng5 Ne2 Rg1 h1Q Rg4 Ng1 Qfe2 Qh2 Nf7+ Ke4 Q2d1 Rh5 Rh6 Rh4 Nh8 Ke5 Rhg6 Rh7 Qdf3 Rb6 Rh6 Re6 Qb5 Kd6 Rhh4 Re4 Qd7+ Ke5 Qhg2 Qg3 Rh1 Qh2 Qgh3
7K/pR4P1/kpN1RBr1/1pQ3r1/PbNQ2bp/b6N/qn6/1NnN1qQ1 b - - 0 1 legal: proof: d4 e5 dxe5 c6 b4 Nf6 h4 Ng8 b5 cxb5 e4 f5 e6 g5 hxg5 Ke7 e5 Ke8 Bd3 Qc7 Be4 fxe4 Rh6 Qb6 Rh1 Qd8 Kd2 h5 Ke3 d5 Kd4 e3 g4 e2 f4 e1B c4 b6 a4 Bd2 c5 Be1 g6 Rh7 g5 Qc7 g7 Kd8 e7+ Kd7 e8N Kc6 e6 Kb7 f5 Qh2 c6+ Ka6 g6 Qf2+ Ke5 d4 f6 d3 c7 d2 f7 Be7 f8Q Qf1 Nh3 Bc5 e7 Bg4 c8N Rh8 Nf6 Qf3 e8N Qd3 Ne4 Qf1 Ne7 Nf6 g8Q Nd5 Nec3 Nf4 Kf6 Ba3 Kg7 Nc6 Nd6 Nd3 Bb2 Nc1 Nc4 Na5 Nc6 Rh6 Qc5 h4 Rg1 Rc8 Qd8 Rh5 Qdd4 Rg5 Ra2 Rc7+ Kh8 Rg7 Ba1 Qf7 Rf1 Qd5 Rf7 Qe6 Rb7 Qd5 Qb3 d1Q Re2 Qg2 Re5 Qa2 Re6 Qde2 Qb2 Qf1 Qg1 Bd2 Nd1 Bdb4 N4e5 Nc4 Qbd4 Nb2 Nc4 Rf7 g7 Rf6 Qde3 Rfg6 Qe4 Nbd3 Bf6 Nb2 Qed4
k1qR4/1b5Q/BQp1br2/K5b1/Q2BnP1q/p1Q1p2p/RnP4Q/1B1r2N1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 gxh4 Nd2 Ke7 dxe5 Na6 e6 Ke8 e5 Nb8 Ne4 fxe4 Kd2 h5 Kc3 a5 g4 d5 b4 e3 b6 a4 e7 Kd7 b5 h3 Kb4 a3 g5 h4 g6 d4 b7 d3 b6 Kc6 e6 d2 g7 h2 Qh5 d1B Qh7 Ra6 Bb2 Bg4 Bd4 Nd7 b8Q Nc5 b7 Na4 Ra2 Nf6 g8B Bh6 e8Q+ Qd7 f4 Ne4 e7 Be6 Qh5 Nb2 e8Q Bg5 Qa7 Rb6+ Ka5 h3 b8Q Bb7 Qec8 Qe7 Bf7 Rd8 Ba6 Rd6 Qba8 Qd7 Qch8 Qc8 Qe2 Rd8 Bc3 Rd1 Bd4 Kd7 Qe5 Rd6 Qec5 c6 Qc3 Kc7 Qac5 Bd7 Qaa7 Be6 Qab6+ Kb8 Q5c4 Ka8 Qa4 Rf1 Nf3 Rc1 Rd1 h1Q Qh2 Qe1 Ng1 Qh4 Ra1 Bg4 Ba2 Rf6 Bb1 Be6 Rd2 Rd1 Ra2 Qg3 Bc5 Qg4 Rd8 Qh4 Bd4
BbK2Rn1/1Q1p2B1/1q2P1r1/2k3pp/2b2B1P/1B2N1rR/rp2r2B/1R1n3Q b - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 dxe5 f6 a4 f5 Nc3 fxg4 Na2 Nh6 axb5 Rg8 b6 Rh8 b5 Ng8 Nb4 cxb4 Kd2 Ke7 Kd3 a5 Ke4 h5 Kd5 g5 h4 g3 f4 g2 c4 b3 e4 b2 f5 a4 e6 a3 b7 a2 b6 Ra4 f6+ Ke8 e5 Bg7 Kd6 Nc6 b8Q Rh6 e7 Nb4 c5 Nd3 c6 Rc4 b7 Nf4 c7 Bf8 Rb1 a1R Ne2 g1R Nc3 Ne6 Nd5 Bg7 Bg2 Rh7 Bf4 Rh6 Rh3 Re4 Ne3 Nd4 Qa7 Ra4 b8B Ne2 Qb7 Nc3 Bh1 Kf7 e8B+ Kf8 e6 Ra2 Bg6 Rg3 f7 Bd4 Bg2 Ba7 Qh1 Nd1 Bh7 Re5 Bc2 Rg6 Bb3 Re4 Qb6 Ba6 c8R Re5 Ba8 Bc4 Bc7 Bb8 Qbb7 Kg7 f8B+ Kf6 Nf1 Re2 Ne3 Ba7 Bb8 Qa5 Bh6 Qb5 Kc7 Ke7 Rd8 Qa6 Kc8 Qb6 Bbe5 Bb8 Bhg7 Rg1 Bh2 Rg3 Bc3 Kd6 Rf8 Kc5 Bce5 Qa6 Bc7 Qb6 Bf4
QR3K2/1Bqp2P1/1rQ5/b2nNb2/B4rp1/2k1Npn1/p2n1P1Q/2BBnB2 b - - 0 1 illegal: No proof kernel
1Kn1QR1b/2pP1R2/Q6r/1p1nB3/k1nr1QR1/p1Pbn3/2p2q1R/N3R2B b - - 0 1 illegal: No proof kernel
1N1b1N2/NN4r1/pkP1n1q1/n5p1/Q3p3/BpRrQrNK/PQ6/2R1r2b b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Bf8 e4 hxg4 e6 f5 e5 Rh5 Bd3 Rh8 Be4 fxe4 Kf1 b5 Kg2 g5 f4 d5 h4 a6 c4 d4 f5 d3 f6 d2 e7 Kd7 e8Q+ Kc7 c6 b4 h5 b3 h6 g3 c5 Bd6 f7 Nd7 f8N Nb8 e6 Qe7 h7 Nh6 Na3 Nf5 Kh3 g2 Qf3 d1R Ne2 g1R Qe3 Bb7 Nc2 Qf6 e7 Qg6 Nb4 Ra7 Ba3 Rd3 Ng3 Nd4 Rc1 Ne6 Rc3 Re1 Rg1 Rg8 h8Q Bc8 Qhd4 Rg7 Rf1 Re2 Rfc1 Re1 Qf6 Rf7 Qff2 Rf3 Qg2 Nd7 Qb2 Ne5 Qd7+ Kb8 e8N Bc7 Qdd4 Nc4 Nd6 Bd8 Nb7 Na5 c7+ Ka8 Qc4 Bd7 c8N Kb8 Nc6+ Kc7 Nb8 Be8 c6 Bf7 Qee2 Be8 Ncd6 Kb6 Nb5 Bd7 Nc5 Be8 Qb4 Rg7 Qe3 Qf5+ Kg2 Bh5 Nh1 Rh3 Qa4 Qg6 Na7 Rg3+ Kh2 Bf3 Nb7+ Rd4 Qf4 Rd3 Qfd2 Bg2 Qf4 Rge3 Ng3 Bh1 Kh3 Rf3 Qe3+
1q3N2/Rp6/3pr3/1QNp2K1/1PNPk1b1/1n1NpqB1/q4bbr/NR2Q1R1 b - - 0 1 illegal: No proof kernel
1q2B1n1/3pBr1q/3Q2pp/nr2NbQP/1B5R/qR1Pq1B1/3p1BK1/4k2Q b - - 0 1 illegal: No possible last move, all moves rejected
BbNK4/np1R1Rq1/3N1n1R/3bNp1b/2p1R1pp/1kQ3rP/3r2PR/5Q2 b - - 1 2 legal: proof: f4 d5 b4 a5 c4 e5 fxe5 Qd7 e3 Qd8 Ba3 c5 bxa5 Be7 Bb4 cxb4 c5 Bf8 Bc4 dxc4 Ke2 Kd7 Kf3 Kc6 Ke4 Kb5 d4 h5 a4+ Ka6 d5 g5 d6 f5+ Kd5 b3 d7 b2 Ke6 h4 h3 g4 e4 Nh6 c6 Qb6 Nd2 b1B Ngf3 Qg1 c7 Nc6 Qf1 Qd4 Rh2 Ka7 a6 Kb6 a5+ Kb5 a7 Kb4 a6 Rb8 a8R Qb6 a7 Qc5 Ra6 Bc2 Kf6 Bd1 d8R Rg8 e6 Ba4 e5 Ka3 e7 Qb6 e8R Be6 c8N Bd5 e6 Bd6 e7 Qc7 Ne4 Kb3 Ne5 Rh8 Rd7 Ng8+ Kg7 Rh6 Kf8 Re6 Kf7 Nf6 Rb6+ Bb4 Ned6 Bb5 Ra6 Be1 Rf8 Bg3 e8Q Bf4 Rg8 Bg3 Rg7 Ba4 Qh8 Bb5 Nb6 Rd8 Nbc8 Bf4 Rb8 Ba4 a8B Na7 Ne4 Rb6+ Ke7 Bac6 Ned6 Bf7 Qh6 Bh5 Rf7 Bd5 Qh8 Rb4 Ra1 Ra4 Re1 Ra2 Re2 Rd2 Re4 Rd3 Nb6 Rg3 Rc8 Qc5 Rc6 Qd4 Nbc8 Ne8 Ng6 Qg7 Ne5 Nf6 Nb5 Ne8 Rh6 Nf6 Nbd6 Be3 Qh7 Bb6 Qg6 Bc7 Qg5 Bb8 Qe3+ Kb2 Qd4+ Kb3 Qc3+ Ka2 Rc7 Bc6 Nb5 Rd2 Rd7 Bd5 Nbd6 Rf2 Qe3 Rd2 Kd8 Kb2 Qd4+ Kb3 Qc3+
2R3Nb/rpNQpR1N/1B4qp/4R1n1/p1bp4/1P2RPn1/Qkr1R2K/n7 b - - 0 1 illegal: No possible last move
NrN2Q1q/1Np4N/5n1p/B2p2nR/2P1b2K/1pk1pp1P/5B2/nrNB2Q1 b - - 0 1 legal: proof: d4 e5 b4 a5 e4 axb4 Nc3 f5 exf5 e4 Nb1 Bd6 Ke2 Bg3 Ke1 Be5 dxe5 g5 f4 Qf6 a4 Qe7 f6 Ra6 f5 Qd8 Ra3 Ra5 Rf3 Ra8 Rf4 gxf4 Kf2 Kf7 c4 b5 g4 d5 e6+ Kf8 e7+ Kf7 e8N b3 a5 f3 Kg3 h6 a6 b4 a7 b2 g5 b3 g6+ Kf8 f7 Ke7 f8N Qd6+ Kh4 Be6 f6+ Kd8 f7 Ke7 g7 Bc8 Be3 Be6 Nh7 Bf5 f8B+ Ke6 Bb6 Ke5 Ne2 Nf6 g8Q Qd8 Bfc5 Na6 Qf8 Nb4 Nbc3 b1N Na4 Nd2 Nc1 Nc2 Bf2 e3 Nc5 Kd4 Be2 Kc3 Nd6 Be4 Ncb7 Na1 Qg1 Rg8 Nc8 Rb8 a8N Rg6 Qg7 Qh8 Bd1 Rg5 Qf1 Rg1 Qf8 Bd3 Qg2 Rf1 Qg1 Nde4 h3 Ng5 Rh2 Kd2 Rg2 Kc3 Rg4 Re1 Rf4 Be4 Rf5 Re2 Re5 Rb2 Rf5 Rb1 Re5 Ne6 Rh5 Ng5 Ba5+
KR2b1rr/2P4R/R1r3q1/bQ1R1N2/r1Rpr3/2Pp1k2/b2R4/N5BR b - - 0 1 legal: proof: b4 a5 e4 b5 h4 g5 a4 gxh4 axb5 f5 exf5 c6 d4 a4 d5 Nf6 d6 Nd5 Bc4 Nc7 Bd5 cxd5 dxc7 Nc6 Nc3 Bg7 Nb1 Na5 bxa5 Bf8 Ke2 Kf7 Kf3 Kf6 g4 Ke5 f6 h5 c3 a3 f7 d4 b6 d5 b7 d3 b8R a2 a6 e6 g5 h3 a7 d4 g6 h4 g7 h2 g8R h3 Rg5+ Kd6 Ke4 e5 f4 Qf6 f5 Bd7 Ne2 Be6 Nd2 Qh6 f6 Bc8 Nb3 Bd7 Ng3 Be8 Be3 Qg6+ Nf5+ Kc6 Bg1 Bb4 f8R Ba5 Rb1 a1R f7 Ra4 Na1 Rg8 Qb3 Rc4 Kf3 Kd5 Qb5+ Rc5 Rb4 e4+ Kf4 e3 Rc4 e2 Rg2 e1R Rd2 Re4+ Kf3 Rg7 Rh8 Rg8 f8R Ke5 Rf7 Kd5 Rh5 Ke5 Kf2 Kf4 Rfh7 Rc6 Rb7 Rc8 a8R Rd8 Ra6 Ra8 Ne3 Ra7 Rd5 Ra8 Ke1 Kf3 Rb8 Rh4 Nf5 Re4+ Kd1 Ra7 Kc1 Ra8 Kb2 Ra7 Ka3 Ra8 Bf2 Ra7 Re1 h1B Ka4 h2 Rc1 Bg2 Rh1 Bh3 Bg1 Bg4 Nd6 Be6 Nf5 Bb4 Rdd8 Qg3 Rg7 Qf2 Ra5 Qe3 Rc5 Bc4 Rdd5 Ba2 Rc4 Qe1 Re7 Ra8 Ra7 Bc5 Ka5 Bb6+ Ka6 Qg3 Kb7 Qg6 Ra3 Ra4 Rf7 Rb4 Ra6 Ra4 Ka8 Ba5 Be3 Rg7 Rg1 h1R Re1 Rh3 Rh1 Rg8 Bg1 Rhh8 Rfh7
b4Nrb/k1B4q/PR6/Pn6/1Kn3rB/p1B2q2/r1BB1RbB/3b1B1Q b - - 0 1 legal: proof: b4 a5 h4 f5 a4 d5 c4 b5 cxd5 g5 e4 gxh4 exf5 Ba6 Nc3 Kf7 bxa5 Bc8 a6 Ke8 a5 Ra7 Na4 bxa4 Qg4 Ra8 Qf3 Bg7 Qd1 Bf8 d4 Kd7 Kd2 e5 Kc3 h5 f4 c5 g4 Kc7 f6 h3 f7 h4 f5 a3 f6 h2 g5 h3 g6 c4 g7 e4 Qe1 e3 Qh4 e2 Qf2 e1Q+ Bd2 Qe4 Ra2 Ne7 g8B Ng6 Bh7 Nc6 d6+ Kb8 d7 Nge5 d5 Na7 d6 Rg8 Kb4 Rg4 Qh4 Qe7 d8B Qf3 Ne2 c3+ Nd4 Nb5 Bc7+ Ka7 Bc2 Bg7 f8B Bh8 f7 Nc4 Ne6 Rb8 Rg1 h1B Bg7 h2 f8B Bg2 Qh5 Qh4 d7 h1B d8B Bd7 Qd5 Qh7 Bh4 Ra8 Bfd6 Rg8 B6f4 Bc6 Bh2 Ba8 Be4 c2 Bgc3 c1R Bc2 Re1 Nf8 Ra1 Rb2 Ra2 Qh5 Qb7 Rb3 Bf3 Rg2 Bd1 Rf2 Bg2 Qd5 Bh3 Qh1 Qf3 Rb1 Bg2 Ka4 Nbd6 Rb6 Nb5 Kb4
2n2QB1/3b2p1/krNb1P1B/2nK3R/B1B3pn/2P2pr1/6Nn/1BBnB3 b - - 0 1 illegal: No proof kernel
1N5N/5B2/bkRN2Kb/NN3p2/P2qpQ2/2p1B1Pq/rr1N1p2/2r1nN2 b - - 0 1 legal: proof: d4 d5 a4 g5 f4 a5 e4 h6 exd5 Bd7 b4 Bc8 bxa5 Kd7 d6 Ke6 c4 Kf6 c5 Nd7 d5 gxf4 g3 h5 c6 h4 cxd7 h3 Ra2 Bg7 Rb2 Bf8 Rg2 hxg2 Kd2 Ke5 Kd3 c5 h4 b5 h5 e6 h6 f3 h7 f6 a6 b4 a7 f2 Qd2 b3 Rh6 b2 Nf3+ Kf5 Nh2 Rb8 a8N Ke5 Nc7 g1R Nb5 Ba6 Be2 Re1 Bh5 Ne7 Bf7 Nf5 Nf1 Ne3 Qb4 Nc2 Nbd2 Qb6 d8N b1Q d7 f5 d6 Kd5 Nc6 Re2 d8N c4+ Kc3 Qc5 d7 Ne1 Nb7 Qe4 d8N Qg4 Rf6 Bh6 N7d6 Qh3 N8b7 Rhc8 h8N Rc7 Nba5 Qb6 Ndb3 Ra2 Nbd2 Rbb7 Nb8 Rc6 Qb1 Kc5 Qe4 e5 Qf4 e4 Re6 Qa7 Rg6 Kb6 Kd4 c3 Ke5 Rc5+ Kf6 Rd5 Rg5 Rd4 Kg6 Rb4 Kf6 Rbb2 Rg8 Rd7 Rc8 Rd8 Kg6 Qd7 Ndb7 Qd4 N7d6 Rd7 Nf3 Rb7 Be3 Rb1 N3d2 Rc1 Na3 Ka7 Rc4 Rbb2 Nab5+ Kb6 Rc6+
2nbr3/n5Kp/b1R1Q2P/R1b1n1BB/nRrR1n2/8/1kqN1PRR/2r4R b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 h4 Nd7 Nc3 Kf7 Nce2 Ke8 Ng3 Nb8 h5 g5 Nf5 Qd6 Nh4 gxh4 Ne2 Qd7 Ng1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Ke3 c5 d4 a5 b4 h3 g4 h2 d6 c4 h6 c3 b6 c2 b5 a4 d5 a3 b7 a2 b6 Nc6 b8R Nge7 b7 Qc7 d7 Ra4 d8R Na7 d6 Rc4 Rb1 a1N d7 Nb3 Ra8 Nc5 b8R Na4 Ne2 Ba6 Nd4 Nec8 Be2 Bc5 Qe1 Re8 R8b4 Qc6 Bd2 c1N R1b3 Nd3 g5+ Kf7 g6+ Kf6 g7 Nf4 g8R Qc7 Rhg1 h1R Bh5 Qc6 Qe2 Qc7 R1g2 Rhc1 Rh2 Qc6 Rgg2 Qc7 Rd3 Qc6 Bc3 Qc7 Rd1 Qc6 Kd2 e3+ Ke1 Qe4 Rab8 Ne6 Bd2 Qc2 R8b5 e4 Ra5 Ke5 Nb3 Kd5 Qg4 e2 Bg5+ Ke5 Qh3 Nf4 Qe3 Qb1 Kd2 e1N Qh3 Ned3 Rdh1 Re7 Rg8 Re8 Rg6 Kd5 Rc6 Ke5 Na1 Kd4 d8R+ Nd5 Ke2 Kc3 Nb3 Kb2 Qe6 Qc2+ Bd2 e3 Kf3 e2 Bg5 N5f4 Rd4 Ne5+ Ke3 Qd2+ Ke4 Qc3 Kf5 Qc2+ Kf6 Re1 Rb7 Rc1 Kg7 e1B Rab5 Beb4 Rb8 Be7 Ra5 Bbc5 Rb4 Bd8 Nd2+
Bb6/1n3p1P/2NBnP2/3K1B2/1RBb1q2/RbBr2B1/r2bBpnQ/r1k5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 c5 dxc5 Nc6 f5 Rh3 Nc3 Rh8 Nd5 Nb8 Nf4 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 b4 a5 c3 g5 h5 f3 f6 a4 c6 g3 c7 g4 b6 g2 h6 g3 b5 a3 h7 a2 b7 Bb4 b6 Na6 b8B Nh6 b7 Nf5 Bb2 Ke3 Rh4 Nd6+ Kd5 Nc5 c4 Ne6 c5 Bd2 c6 f2 Nf3 g1B Be5 g2 Rb4 Bh2 Bc3 g1R Nd4 Qg8 Bg2 Qg4 Be4 Rg3 Qh1 Qf4 Bd3 Rg1 Bc4 Rd8 Qg2 Bg3 Qh2 Rf1 Ba7 Rh1 b8B Nb7 Bc5 Rg1 Bd6 Ra4 Rab1 a1B R1b3 Ra2 Ra3 Re1 Bf8 d6 Be7 Bd7 c8B Rb1 c7 Ba4 Bf8 Bb3 Nc6 Rh1 Bd7 Bb2 c8B Rha1 Be5 Bd4 Bc7 Nec5 Bf5 Ne6 Ba5 B2c3 Bd3 Kd2 e4 Kc1 Be2 Bd2 Bc7 Ba7 Bc3 Bd4 e5 Rd7 Na5 Rd8 Kc6 d5 Bfd6 Bb6 Bb8 d4 Kd5 d3 Nc6 Bd4 Bd7 Be1 Bbc7 d2 Bb8 d1N Bbc7 Ng7 e6 Bd2 e7 Ne6 e8B Qh6 Ke4 Ne3 Bb8 Ng2 Kd5 Bge5 Bbc7 Qf4 Bc8 Na5 Bb7 Rd7 Ba8 Nb7 Bb8 Ba7 Bc7 Bed4 Bb8 Rd8 Bc7 Bb8 Bd7 Rg8 Bc8 Rg3 Bd7 Rd3 Bc8 Ned8 Bh3 Ne6 Bf5 Qh6 Bg3 Qf4 Bd6
1R1qb3/pn1n1B2/3k3K/2b4P/R2p3B/2RPRq1n/RQ2RN2/Rrq1r2n b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a4 hxg4 Nc3 Kf7 Nd5 Nf6 axb5 Ke8 b6 Ng8 b5 Nh6 Nb4 cxb4 Ra3 Ng8 Ra2 Rh4 Ra1 Rh8 Ke2 e5 Ke3 Ke7 f4 d5 c4 g5 h4 e4 f6+ Ke6 c5 b3 f7 b2 h5 b1N f5+ Ke5 b7 g3 f6 g2 c6 g4 b6 g3 c7 Nc6 b8R Nc3 b7 Bd7 c8R Kd6 Kf4 d4 Kg5 e3 Qb3 e2 Qb2 e1Q Rh2 Qf2 Bc4 Ne2 d3 Be8 Nh3 Qf3 Nf2 g1Q Bd5 Na5 Rc3 Be7 f8R g2 Bf7 Ng3 Rbc8 Qe1 b8R g1N R8c4 Nb7 Rca4 Nh1 Bd2 Qed1 Be1 Qc1+ Kg6 Nh3 Rg2 Bb5 Re8 Bf8 Re3 Be8 Ng4 Rh7 Bh4 Be7 Nf2 Rh8 Rbc8 Rb8 R8c5 Rh7 Rca5 Rh6+ Kg7 Rg6+ Kh7 Rg5 Rh2 Rg1 R4a2 Re1 R5a4 Nh6 Kg6 Ng4 Kg7 Ne5 Kh6 Qc2 Be6 Qc1 f7 Nd7 f8R Nbc5 Bf7 Rb3 Qd2 Rb1 Qb2 Nb7 Ne4+ Ke5 Re2 Bc5 Nf2+ Kd6 Rg8 Ba3 Rg5 Bb4 Rgc5 Ba3 Rc8 Bc5 Rb8
qR2Br2/1p3B2/2b4p/2p1rb1n/3Bk1BP/1Pb1qp1N/1n4B1/1BB1NKQ1 b - - 0 2 illegal: No proof kernel
n2Q1K1B/1p1r2pB/q1ppBbP1/nB1r3p/N1B1r2R/1P6/N3B3/1k1B2b1 b - - 1 2 illegal: No proof kernel
1N2b1N1/p1b1N2q/5ppn/r5Q1/2B1Q3/RQ1P2Br/2PK1kB1/q4B2 b - - 0 1 legal: proof: f4 e5 b4 exf4 a4 h5 g4 c5 gxh5 b5 axb5 d6 bxc5 Qd7 Na3 Qe7 Nb1 Qd8 cxd6 Ne7 e4 Na6 b6 Bd7 b7 Rc8 Ra3 Ng8 Rc3 Nc7 Re3 Na8 bxa8B fxe3 Bh3 Rc5 Bf1 Rc6 Bc4 e2 h4 g6 e5 Ra6 h6 Qf6 e6 Qe7 h7 Nf6 h5 Ra2 h6 Ba4 d7+ Kd8 Nc3 Kc7 Rh3 Kd6 d8Q+ Ke5 Nd5 Kd4 Nf3+ Ke4 Nd4 Rb2 Nc6 Bb3 Nb8 Qa3 e7 Rg8 h8N Qa1 h7 Rb1 Qb6 Ba4 Ra3 Bd7 d3+ Kf3 e8B Bg4 Bd7 Bc5 Qd2 Rb5 Qg5 Ra5 Qb3 Bd6 Ne7+ Kg3 Bdc6 Bc7 Bf3 Rd8 Bh1 Ng8 Bhd5 f6 Nf7 Be5 h8Q Bc7 Qh1 Rf8 Nh6 Rc8 Qd2 Bd7 Be6 Rf8 Bh3 Be8 Bf1 Rf7 Bf3 Rg7 Qe3 Rh7 Qh5 Rh8 Qe4 Rh7 Kd2 Rh8 Bb2 Rh7 Bh3 Qh1 Qg5+ Kf2 Bf1 Qh5 Kc1 Qh2 Be5 e1Q+ Bd1 Qc3 Bf3 Qa1+ Kd2 Qh4 B3g2 Qh3 Nf7 Rh4 Nh6 Qd7 Nc8 Qh7 Ne7 Rh3 Nd5 Ne7 Ng8 Nf5 Nde7 Nh6 Bg3+
2rb4/1Q1p4/1RNK1R1Q/4r3/b2R3B/2BPQ1b1/1qk3PQ/1Bqrn1n1 b - - 0 1 legal: proof: e4 c5 b4 f5 exf5 g5 bxc5 b5 a4 g4 Ne2 g3 axb5 a6 bxa6 gxh2 Rg1 h1Q Na3 Qh2 Rh1 Qg1 Nc4 Qa5 Ne5 Qc7 Nf7 Qb6 Nd8 Qxd8 c4 Kf7 f4 Kf6 c6 h5 a7 e5 c5 h4 c7 e4 c6 e3 Ra6 h3 Bb2+ Ke7 f6+ Kd6 f5 Kc5 f7 Kb4 f6 h2 Nd4 e2 Qc1 Rh3 Bc3+ Kc4 Rb6 Ba3 f8Q Kd3 f7 Rh7 Qh6 Be7 f8B Ba6 c8Q Bb5 c7 Nf6 Nc6 Ba4 Qb7 Nd5 c8Q Nf4 Qcc7 Na6 Bfg7 Nc5 Bgf6 Rg7 Bh4 Rc8 a8R Nh3 Raa6 Qh8 Qa3 Qe3 Rg1 h1R Qh2 Bd8 Qb3 Qf3 Qbe6 Kc2 Qee3 Bb5 Ra4 Re7 Rd4 Qg4 Rd6 Ba4 Rf6 Nf4 Kf2 Qg5 Kf3 e1B Bb5 Re5 Bc4 Bg3 Ba2 Ne2 Rf1 Nd3 Rd1 Rb5 Ke4 Ng1 Kd4 Re5 Kc4 Ne1 Kd4 Re8 Kc4 Qf4+ Kc5 Re5+ Kd6 Qf1 d3 Qf4 Rdb1 Qg7 R1b4 Qfg5 Qe4 Qc1 Qee3 Qh8 Re6 Qf6 Rd4 Qf2 Rf6 Qfd2 Qb8 Qb2 Qa7 Qdc1 Qb7 Ne2 Bf7 Nf3 Ra6 Rd1 Ba2 Ne1 Rb6 Ng1 Bb1+
4R1q1/2b2Bn1/kQp5/1R2R3/r3Q1q1/P2bPbnQ/K1N1r3/B3B1Qb b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 b4 axb4 fxe5 Qd6 Qb3 Qe7 Qd1 Qd8 gxh5 c5 dxc6 Be6 d4 Bd7 d5 Bc8 c7 Bd6 Nc3 Ra7 Nb5 Bf8 Nd4 Ra8 Nc6 bxc6 Kd2 Kd7 Kc2 f5 Kb2 g5 h4 g4 e3 g3 h6 f4 h5 b3 a3 f3 d6 g2 h7 f2 h6 Na6 Ne2 g1Q Nd4 Ra7 Bd2 Nf6 Nc2 Ne8 Bc4 f1B Rh5 Nc5 Bf7 Ne4 Be1 Bd3 Rb1 Ng7 Ka1 b2+ Ka2 Bca6 e6+ Kc8 d7+ Kb7 c8R Qg4 e7 Ng3 e8Q Bd6 Qe4 Qg8 d8Q Bc7 Re5 Be2 Q8d4 Bad3 Rce8 Ra4 Qd8 Ka6 Qc1 Qf8 Qdd4 Rg8 h8Q Bf3 h7 Bh1 Bf2 Be2 Qg1 Bd1 Be1 Bdf3 R8e7 Qa8 Qc5 Rb8 Qc8+ Rb7 h8B Qb8 Qd7 Qg8 Re8 Rbb4 Qdf5 Rd4 Qh7 Rd2 Qh3 Rf2 Rd1 Re2 Rdd5 Bfg2 Qcd4 Bf3 Rb5 b1B+ Kb2 Bb8 Rec5 Be5 Ka1 N7h5 Nb4+ Ka7 Bg7 Bd3 Nc2 Bc7 Ka2 Ka6 Qd8 Bb8 Ba1 Ng7 Rce5 Bd6 Qb8 Bc7 Qb6+
1k1N2n1/1brR4/r5Q1/nPnb3B/Q5N1/2N2bb1/RpRKPnQ1/4R3 b - - 0 1 legal: proof: b4 a5 g4 e5 f4 exf4 a4 b5 c4 h5 gxh5 d5 cxd5 Qd7 bxa5 b4 Bg2 b3 Bf1 Qb5 Ba3 b2 axb5 Ra6 Bc5 Ra8 Ba7 Nc6 Bb8 Nxb8 h4 Kd8 d4 c5 d6 f5 d7 Kc7 d8N g5 h6 c4 h5 f3 h7 f4 a6 c3 d5 g4 h6 c2 a7 c1N Ra5 f2+ Kd2 g3 Nh3 g2 Rg1 f3 Nc3 Nd3 Ra2 Nc5 Qa4 Bb7 d6+ Kc8 Rh1 g1N Bg2 f1B Nf2 Nc6 Ng4 f2 Bf3 Nh3 d7+ Kc7 Rg1 Bg2 Re1 Rc8 a8Q f1B Q8a6 Na5 Qg6 Bd6 Nf2 Ne7 Bh5 Bgd5 Ng4 Rf8 h8Q Kb8 h7 Rf6 Qhg8 Nf2 h8R Rc7 Q8g7 Bg3 Rf8 Ra6 Rf6 Bb3 Rc6 Bg2 Qg8 Bh1 Qd5 Ng8 Qg2 Bc8 Nf7 Bd5 d8R Bf3 Rd7 Bb7 Nd8 Bd5 Qh2 Bhe4 Qg2 Bf3 Ne4 Ncd3 Rc2 Nc5 Nc3
NKRQ4/Rb1R4/QrB1q1P1/1Q2p3/1r5P/Nq5q/1Nbkr1Nr/q7 b - - 0 1 legal: proof: d4 d5 a4 c5 e3 cxd4 Ke2 b5 axb5 d3+ Kf3 d2 Ke2 Bh3 Ra3 Bd7 Ra1 Bc8 Kd3 d4 b3 g6 Ba3 Bg7 Bd6 Bf6 Kc4 d3 Kb4 Bd4 exd4 f6 Kc4 Qb6 Kc3 Qd8 g3 h5 Be2 h4 Kb4 h3 Kc3 Na6 Bb8 Nb4 Be5 fxe5 Bf1 Nd5+ Kc4 Ne3+ Kb4 Kf8 Kc3 Ke8 Kb4 g5 Be2 g4 Kc3 Ng2 Bf1 Nh4 Be2 Nh6 Bf1 N6f5 gxh4 g3 Qe2 g2 Qd1 Ng3 hxg3 Qa5+ Kb2 Qb6 Kc3 Qd8 Kc4 Kd7 Kd5 a5 f4 h2 c4 e4 f5 e5 b6 e3 b4 a4 g4 a3 f6 a2 f7 e2 f8N+ Ke7+ Kc6 Kf6 d5 e1Q g5+ Kf5 b5 Ke4 g6 Ke3 d6 Rh6 c5 Ra7 d7 Qe2 b7 Qh5 b8N Ra5 b6 Rh7 b7 Qe7 Kc7 Rg7 c6 Qe8 Na6 Qg4 b8Q Rb5 Nb4 Bb7 Nh3 g1R Bg2 Qge6 Qa4 d1B Na3 d2 Nd3 Q8f7 Nb2 Qff6 Nf4 Rb6 Qa6 Qh3 N8e6 Re1 Qe8 Rb4 Kb8 Re2 d8Q Bc2 c7 d1Q c8R Re7 Nc7 Re6 Rg1 h1R Na8 Reb6 Qeb5 Rh2 Bc6 Qfe6 Re1 Qd3 Ng2+ Kd2 Rf1 Qdd5 Rf7 Qdd3 Rd7 Qdd5 Rf1 a1Q Rf4 Rb3 Ra4 Rb4 Qc4 Qdd3 Qab5 Qdd5 Ra7 Qdd3 Qa6 Qdd5 Qcb5 Qdd3 Bd5 Qb3 Bc6+
Qq4Qb/1brP2r1/2npR3/2p3k1/3PQ3/1NBRKb1R/3RN3/1bN4n b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 c4 b3 c5 Rh7 axb3 Nc6 b4 Nb8 b5 Rh8 d4 a5 b4 axb4 c6 e5 Bb2 e4 Ba3 d6 Bc1 Ke7 Bd3 Qd7 cxd7 exd3 Kd2 Kf6 f4 g5 h4 c5 h6 b3 h5 b2 b6 g4 b7 g3 h7 g2 h6 Ra3 Qe1 Ra2 Rh2 Na6 b8R Ra5 Ne2 g1Q Rb3 Qh1 Ke3 d2 Rd3 d1B Bd2 Qb7 Nc1 Ra3 Bc3 Rb3 Nd2 Ra3 Ndb3 b1B Rhd2 Kf7 f6 Kg6 f5+ Kh5 f7 Bg7 f8N Kg5 f6 Ne7 f7 Nb4 Ng6 Bf3 f8Q Nbc6 Nf4 Qb8 Nfe2 Rg8 h8Q Bb7 h7 Ra7 Qh1 Be5 Qf7 Rg7 Qfg8 Ba6 Ra3 Rc7 Raa2 Bb7 Rac2 Bh5 Qe4 Bf3 Ra2 Ng6 Rab2 Nf4 Ra2 Nh5 Ra8 Qf8 Re8 Ng3 Re7 Nh1 Re6 Qf7 Qa8 Qe8 Qg8 Qb8 h8R Rg6 Rh6 Bh8 Rh2 Rg7 Rh3
n1R5/4Bn1r/P2N1R2/1N1Pp1Nq/pk2KQn1/2Rr1Q2/1Q5q/2Q1b1q1 b - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 f5 exf5 a6 b4 h4 b5 axb5 g3 Kf7 gxh4 Ke8 h5 Ra6 Qf3 Ra4 Qd1 Ra8 a4 c5 d3 c4 a5 c3 Be2 Bd7 Qb3 Bc6 Bd1 Bd7 Qa4 Bc6 Qd4 Bd7 Ba4 bxa4 Qg4 Bb5 Qd1 Bc4 dxc4 Ra7 Qb3 Ra6 Qd1 Ra8 Ke2 Kd7 Kd3 Kd6 h4 Kc5 f4 g5 f6 b5 a6 b4 f7 c2 h6 g4 h7 b3 h5 e6 h6 b2 f5 g3 f6 g2 Bg5 c1Q Nc3 b1N Nh3 g1Q Ke4 Qc7 Ra3 Qc8 Nb5 Kb4 c5 Qc7 c6 Qch2 c7 Nc6 c8R Ra7 Rc3 Na3 Qf1 Qcd2 Qc1 Nc4 Bh4 Bd6 f8Q N6e5 f7 Qdd1 Be7 Nb6 Ng5 Rb7 R8c6 Qdh5 Rc8 Qhg3 Rh2 Na8 Rf2 Ng4 Rf6 Rd7 Qe8 Rc7 f8Q Q3h2 Qg6 Rc5 Qf5 Bg3 Qf3 Be1 Bd6 Ne7 Qf7 Nc6 Be7 Nd8 Qff4 Rg8 h8Q Rg7 Qff8 Nf7 h7 Rg6 Qhg7 Rh6 h8N Rh7 Qf3 Nfh6 Nhf7 e5 Nfd6 Nf7 Qg6 Rc7 Qgf5 Rc5 Q5f4 Rc6 Qd8 Rc5 Qb6 Rc6 Rc2 Rc3 Qb7 Rd3 R2c3 Qhg2 Qb6 Qgh3 Qbf2 Qhh2 Qfb2+
4Bnk1/n4qBq/N2K3n/2B1N1bP/1R2pP1Q/2p5/1n2QN1q/2B1Q1b1 b - - 0 1 legal: proof: d4 f5 e4 fxe4 a4 d5 b4 g5 g4 b5 axb5 h5 c4 a5 c5 h4 h3 Rh5 gxh5 g4 Ra3 g3 Rc3 Ra6 Rc4 dxc4 d5 Rd6 cxd6 Bg4 hxg4 Bh6 Bd2 Bg7 Bc1 Bf8 Kd2 Kf7 Ke3 c5 Kf4 a4 Ke5 a3 f4 h3 g5 g2 b6 a2 b5 a1N b7 c3 g6+ Kg7 b6 h2 d7 c4 d6 c2 Qe2 e3 Nf3 g1B Nc3 Qe8 d8Q Nh6 d7 Nb3 Nd1 c3 Nf2 Kg8 g7 Nc5 Bh3 e6 Qh4 Be7 d8B Bg5 Bf6 Nc6+ Kd6 e5 b8N Nd7 b7 Na7 Na6 Nf8 b8B Qf7 Bd7 e4 Qe1 e2 Bd4 Nh7 Ne5 Nf8 Bce3 c1N Be8 Nd3 Bc1 Nb2 Bc7 Qc4 Bcb6 Qb3 Bbc5 Qf7 Qd2 e1Q Qe2 Qd2 Nh3 Be3 Nf2 Qd3 Rd1 h1Q Rd2 Nd1 Rb2 Qh2 Rb4 Qdc4 Nh3 Bg1 Nf2 Qb7 Qe1 Qcf7 Qe2 Ng4 Qe1 Nb2 Qe2 Kh7 g8Q+ Kh6 Nc6 Qh7 Qd5 Qbf7 Qe1 Bf6 Qc4 Kg7 Qb5 Nh6 Qbe2 Kg8 Be5 Bd8 Bg7 Bg5 Ne5
1N2N2B/pKB5/1P1QBQ2/pn3q2/n3B1RN/2q1b2r/2n1bpP1/2Q2k2 b - - 0 1 legal: proof: f4 d5 a4 g5 c4 e5 fxe5 g4 cxd5 g3 a5 b6 hxg3 bxa5 g4 Bb4 g5 Bf8 b4 c5 d4 Na6 b5 Rb8 Ra4 Rb6 Rb4 cxb4 Qd3 Rc6 Qd1 Rc5 dxc5 Bd6 Qa4 Be7 Qd1 Bf8 Kf2 Ke7 Ke3 h5 Kd4 f5 e4 b3 e6 b2 g6 Kf6 e5+ Ke7 g7 f4 b6 f3 d6+ Ke8 Kd5 f2 Kc6 h4 e7 Kf7 e8N Kg6 e6 Kf5 d7 Ke4 e7 h3 Nc3+ Ke5 Na2 Ke4 Qd6 b1N Nb4 h2 Nf3 Nc7 Bb2 Ke3 Bd3 Nh6 g8B Nf5 Be6 Rh3 Na6 Nb5 Be4 Ke2 Nh4 Bh6 Nb8 Ne3 Bh8 N1c3 Rb1 h1Q Rb4 Ba6 Rd4 Na3 Ra4 Bc4 Kb7 Kf1 c6 Nab5 c7 Nc2 c8Q Be2 Qcc5 Bc1 Qg5 Qh2 Qf6 Qc8+ Ka8 Qc5 Bb7 Re3 d8B Bh5 Ba2 Qd5 Ng7 Qe4 e8Q Qhf4 Bc7 Qb4 Bad5 Rf3 Qe3 Qf5 Be6 Rh3 Ne8 Be2 Bf3 Qa3 Rg4 Na4 Be4 Qc3 Kb7 Bd2 Qa3 Bc1 Qed4 Bd2 Qdd6 Be3 Qc1+
1RN5/bP2p1Q1/3q4/1N1Bbpq1/bp2B3/1q1NB3/N5P1/krQQ1n1K b - - 0 1 legal: proof: c4 a5 b4 g5 a4 d5 cxd5 b6 h4 gxh4 b5 Ra6 Ra3 Ra8 Rb3 Be6 Rb4 axb4 a5 Bg4 axb6 Bc8 f4 Qd6 e4 Qf6 d4 Qd6 e5 Qd8 d6 Ra3 d5 Rg3 e6 Rg5 fxg5 Nd7 Bb2 Bh6 exd7+ Kf8 Bc1 Kg7 Nf3 Kg6 Ng1 Bf8 Kf2 Kf5 b7 Ke5 b8N f5 g6 c5 g7 h5 b6 c4 b7 h3 Be3 h4 Na3 c3 Qb1 h2 Na6 h3 Nc5 c2 Nb5 c1B Ne2 Nh6 g8B Bg7 Nec3 Ng4+ Kg3 Qb6 d8Q Bd7 Qf8 Be8 d7 Qd6 d8N Rh4 Na3 Ba4 Bd3 Rh6 Rd1 h1Q Na2 Nh2 Nb5 Nf1+ Kf2 h2 Be4 Bb2 Qc1 Bd4 Qf7 Bf6 Qg7 Rh3 Bb1 Rg3 Nd3+ Ke4 Bf7 Bfe5 Nc6 Rh3 Nca7 Bc5 Nc8 Ba7 Bg8 Qg1+ Ke1 h1Q Be6 Qgh2 Kf2 Rh7 Bg8 Qhh6 Be6 Q1h4+ Kg1 Q4g5 Bf7 Qde6 d6 Qb3 d7 Qd6 d8Q Rh4 Qd7 Rf4 Kh1 Rf2 Bh5 Rb2 Bc2 Kd5 Bf3+ Kc4 Rd2 Rb1 Be4 Qa3 Bd1+ Qc3 Bdf3 Kb3 Rc2 Qb2 Rc6 Qb8 Rf6 Qd6 Rf8 Qa3 Qe1 Qb2 Bd5+ Kc2 Bfe4 Qb3 Rd8 Rb2 Qd2+ Kb1 Qc7 Ka1 Qd1+ Rb1 Qcc1 Qb8 Ncd6 Qc7 Rb8 Qd7 Nc8 Qe6 Na3 Qd6 Nb5
k2RQ3/1N2QqP1/4qq2/2b2pBN/Kn1q1P2/2p1qR2/2p2R2/1RrQ3N b - - 0 1 legal: proof: d4 d5 e4 g5 exd5 b5 a4 Be6 c4 bxc4 d6 Bd7 d5 Bb5 axb5 Qc8 Qd2 Qd7 Qd1 Qd8 f4 g4 h4 Nh6 h5 Ng8 Be2 Nd7 Bf3 gxf3 g4 Ne5 g5 Ng6 hxg6 Qb8 Nc3 Qc8 Nb1 Qd8 Kd2 Kd7 Kc3 Kc8 Kb4 Kb8 d7 e5+ d6 h5 g7 c5+ Ka4 a5 b4 f5 b6 f2 b5 f1Q b7 c3 g6 h4 Nh3 e4 Ra3 e3 Nd2 e2 Ne4 e1Q Ng3 c4 Bb2 c2 Nf2 h3 Nh5 h2 Rf3 Nf6 g8R Qe6 g7 Nd5 Bf6 Qd3 Rf1 h1Q Bg5 Qdf6 d8N Nb4 d7 Bc5 Re8 Ka7 b8R Qde3 Nb7 c3 d8Q Qg1 Re7 Rg8 Qc7 Rd8 Rd7 Qed4 Nh1 Qge3 Rd5 Qef7 Ka3 a4 Qe7 Qee6 Rc8 Rb8 b6+ Ka8 R1f2 Nd3+ Ka2 a3 Kb3 Nb4 Ka4 a2 Rc7 Qde3 Rcd7 Bd6 Rb5 Bc5 Rd5 a1Q+ Kb3 Qac1 Ka4 Nc6 Rb1 Nb4 Na5 Qcd2 b7+ Ka7 Rc1 Qdd4 Rb1 Ra8 b8Q+ Ka6 Rc1 Rh8 Nb7 Re8 Qbd8 Ka7 Ka3 Rh8 Qdd7 Rhd8 Qde8 Kb8+ Kb3 Ra2 Ra1 Rb2+ Ka3 Rb1 Ka4 Rc1 Rb1 Ka8 Rxd8+
1qb1Q1QN/2QNBR1n/2r5/k2B1rN1/2P1b1r1/nBn1q3/2r1P2K/1rB5 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 d4 h5 Ra3 Be7 Rd3 Bg5 g3 cxd4 fxe5 f4 Re3 f3 Re4 Bh6 Rg4 Bf4 gxf4 hxg4 Kf2 g5 Kg3 a5 c4 d5 h4 Kd7 b6 Kc6 f5 f2 b7 Kb6 b5 a4 e6 a3 h5 d3 f6 d4 h6 a2 h7 a1R f7 d2 f8Q d3 e7 Na6 b8B Nc7 e8B R8a2 Qf6+ Ka5 b6 Rc2 b7 Nb5 Rh2 Na3 Qd4 Nf6 Nc3 Rb1 Bh3 f1R Qd6 Rf5 Ba4 Qb6 Qe1 d1N Rf2 d2 Ne4 Nc3 Qc7 d1B Bb3 Rd8 h8N Rd6 Qd2 Nh7 Nf3 Rc6 Kg2 g3 Nc5 g4 Qe3 Rd6 Kg1 g2 Ng5 Rc6 Kh2 g1R Qe8 Rg3 Bf1 Rg1 Nd7 g3+ Kh3 g2 Kh2 Rb5 Rf7 Rf5 Qg3 Qa7 Bd6 Qb8 Qf4 Rd2 Bf8 Bc2 Be7 Be4 Qg3 Rc2 Qd6 Qa7 b8Q Qa8 Qg6 Qb7 Qbd6 Qb8 Qgg8 Rh1+ Kg3 g1Q+ Bg2 Rh4 Qc7+ Qgb6 Bf3 Rhf4 Kh2 Rg4 Qd6 Qe3 Qf4 Bd3 Bd5 Be4 Qc7+
8/2K5/Rr3k2/q1PB1nq1/Q1Q1rRnb/1q3P2/Bb1Q1RQ1/Bb2n1nN b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 Nd2 h6 Ndf3 Nc6 fxg5 f4 g6 Nb8 Ng5 f3 exf3 Na6 Nf7 Nb8 g5 h5 Ne5 Rh7 Ng4 hxg4 Bh3 Rh4 Bf1 Rh8 Ke2 e5 Kd3 Ke7 Kc4 a5 Kd5 a4 c4 e4 h4 e3 b4 d6 c5 e2 b6 e1N b7 g3 h5 g2 h6 a3 b5 a2 b6 d3 g7 d2 h7 Bh3 g6 Bd7 Bc4 Nc6 b8Q Ra6 b7 Kf6 Qa7 Nh6 g8B Ng4 b8Q Be7 g7 Bf5 Bb2+ Nd4 Rh4 Rb6 Nh3 g1N Qaa4 Bb1 Nf2 Qc7 Bf7 Re8 h8R Bd8 g8Q Re4 Qe2 d1Q Nh1 Qd2 Qg2 Qa5 Be6 Qg7 Qc8 Be7 Qcd8 Qg6 R8h5 Qg7 Re5 Qg5 Bf7 Nf5 Bb3 Rb8 Kc6 Rb6+ Kc7 d5 Rh2 d4 Bfd5 d3 Bbc4 Rd4 Re4 d2 Rf4 d1Q Qe6+ Kg7 Qee2 Qb3 Qd2 Kg6 Qc8 Re4 Qa6 Qh5 Bc3 Bh4 Bb2 Qd3 Bb3 Qg5 Q6c4 Qdc3 Qg3 Kg7 Rf2 Kf6 Qg2 Bd3 Rd1 a1B Ba2 Bb1 Rc1 Re5 Rc2 Qb3 Bd4 Bb2 Rc3 Qd1 Ra3 Qb3 Bc3 Bc1 Ba1 Bb2 Qab5 Re2 Qba4 Re4 Qe8 Qab4 Ra6 Qa5 Qea4
4br2/q4N2/Qnn1PQ2/rB2BbNP/BQqRB2k/3q4/3n4/1N2Kbb1 b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 g5 fxe5 h6 g4 Bc5 a4 Bd6 axb5 Bf8 Ra3 Bc5 Rf3 Bf8 Rf4 gxf4 g5 h5 Qb3 Bh6 Qf3 Bf8 Qg4 hxg4 e4 Ke7 d4 c5 h4 f5 g6 a5 h5 c4 b6 f3 b5 f4 e6 Kf6 e5+ Kg5 e7 g3 e8B a4 d6 a3 g7 g2 b7 a2 b6 a1Q d7 c3 d5 c2 d6 Nc6 b8Q Nf6 g8B Nd5 b7 Ra5 Bg6 Nb6 Nh3+ Kh4 Be4 g1N Qa7 Qd4 Bb5 f2+ Kf1 Qe3 b8Q Nf3 Bb3 Bg7 Rg1 Rf8 Bb2 c1Q+ Bd1 Qa3 Ng5 Nd2+ Ke2 f1B+ Ke1 f3 e6 Qc4 Be5 Bh3 Bda4 Bf5 Qa6 Qe7 d8Q Qa7 d7 Qad3 Qf6 f2+ Kd1 f1B d8N Bh8 Ke1 Bd7 Ndf7 Be8 Qd6 Bg7 Qb4 Bh8 Qg6 Bf6 Rg3 Be7 Qf6 Bc5 Rg2 Bg1 Rg3 Qdb3 Rd3 Qbc2 Rd6 Q2d3 Rd4
1q2N1Q1/5P2/bk2bnP1/1b1n1NnQ/r1QB2rq/3R2N1/3K2Br/n3N2B b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 g4 Nd7 h4 Ngf6 b4 Rg8 f5 Kf7 Ra3 Bh6 Rf3 Nb8 Rf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Rh8 Qb3 Ng8 Qc2 Nh6 Qd1 Ng8 d4 Kd7 f6 c5 d6 h5 d5 a5 g7 e5 g6 a4 b6 a3 b5 a2 b7 a1N b6 f3 Qd4 h4 Qb4 c4 Ne2 e3 Ba3 c3 Nd2 h3 Ng3 e4 Bg2 c2 Qc4 h2 Bc5 e2 Bd4 Na6 b8Q Nb4 b7 Ra4 Qa7 Qc7 b8Q Ba6 Qac5 Rh5 Qf8 Qb8 Qf7+ Kd8 d7 Bb5 Rg1 h1B Rf1 Rh2 Rf2 Nh6 g8B Ng4 Qg7 Ba6 Be6 Bb5 f7 Nf6 Beh3 c1N Qh7 Nca2 Qh5 Nc3 Qc8+ Ke7 d8N Kd6 Nc6 Ba6 Qcg4 Kc7 d6+ Kb7 d7 Nbd5 d8N+ Kc7 Be5+ Kb6 Qc8 Bb5 Ne7 Ba6 Bf1 Bg2 Be6 Bh3 Nb7 Bg4 Bd7 Be6 Bc6 Bb5 Nd6 Ba6 Nb3 Bb5 Kd2 e1R Bh3 Rg1 Nc1 Ba6 Re2 f2 Nef5 f1B Ne8 Rgg2 Nd3 e3+ Ke1 Nce4 Rd2 Rg1 Bg2 e2 Ba8 Ng5 Bd4+ Ka5 Rd1 Bb5 Kd2 e1Q+ Kc1 Qe4 Ne1 Qh4 Rd3 Ba6 Kd2 Be2 Ne4 Bb5 Bh1 Rg4 Neg3 Ba6 Nc7 Bb5 Qg8 Ba6 Ne8 Bb5 Bb2 Kb6 Bd4+ Ka6 Nf3 Nb6 Qc7 Bc6 Ra3 Bb7 Ne1 Bb5+ Kc1 Bbc8 Bag2 Nbd5 Qc4 Ka5 Rd3 Bca6 Be5 Kb6 Kd2 Ne3 Bc3 Ned5 Bd4+
rq3rn1/qqB5/N2Q1r2/rBb2PRk/8/B3Q2n/K1P3n1/3RQQrR b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Kf7 f6 Ke6 g4 Kd5 f7 Kd6 f4 h6 f5 Nc6 Nd2 Ke5 Ne4 Nb8 Ng5 hxg5 Kf2 Kd6 Ke1 Bb7 f6 Be4 Bd3 Bg6 Bf1 Bf5 gxf5 g4 Kd2 Ke5 b4 Kf4 h4 g5 b6 a5 h5 e5 h6 d5 b5 d3 Kc3+ d2 Kb2 d4 b7 d3 h7 g3 b6 a4 Qh5 g2 Ra3 g4 Kb1 g3 Qh3 Kg5 Bb2 d1Q+ Bc1+ d2 Bc4 e4 Ra1 a3 Ba6 e3 Ne2 g1R Qf1 g2 Bb5 Na6 b8Q Nc5 b7 Nd3 Qd6 Qb8 Nc3 e2 Nd5 e1N Nb4 Nf2 Ka2 Nh3 Na6 Qf3 Qdd3 Qc6 Qe3+ Kh5 Rb1 Be7 f8R d1R f7 Rd6 Bb2 Qf3 Rd1 Rf6 Be5 Qe4 Bc7 Bc5 Re8 Qf3 f8B Qc6 Re7 Qd7 Rg7 Qf7+ Ka1 a2 Kb2 a1R Rg5+ Kh4 Bfd6 Ra5 Be7 Ba7 Ba3 Bc5 Rg6 Qd7 Ka2 Kh5 Rg3 Nh6 Rg4 Rhf8 h8Q Qc6 Qg7 Ng8 Qge7 Bd4 Ba4 Qbe8 Qd2 Bf2 b8Q Qb7 Qa7 Qeb8 Qc4 Rf1 Qdd6 g1Q Bb5 Ng2 Qe1 Bd4 Qac5 Qf2 Qce5 Rg1 Qcf1 Ba7 Q5e4 Qc5 Q4e3 Qcb6 Nb4 Q6a6 Rg3 Bc5 Rg6 Qab6 Na6 Q6a7 Rg5+
5KnQ/7B/nNr1qnP1/q2Q4/1B1Bq1nB/QP1b1N1N/2R4k/r1nn4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 exf3 Ra4 Bc5 Rf4 gxf4 g5 Be7 g6 Bg5 hxg5 Ke8 Kf2 Kd7 d4 Kd6 e4 c5 b6 h5 b7 a5 b3 f5 g7 h4 g6 h3 Bb5 a4 Be8 h2 Qd3 a3 Qa6+ Qb6 Nh3 a2 Qa3 a1Q Be3 Na6 Rc1 h1Q b8N Bd7 Rc2 Bb5 Nd2 Bd3 Bf7 Qc6 Qa5 c4 Nd7 c3 Nb6 Qe8 Qa2 Qe6 Qb2 Qa5 e5+ Kc7 d6+ Kc6 Na4 Kd5 d7 Rc8 d8B Rc6 Be7 Rh5 Nc4 Ke4 d5 Rg5 d6 Rg1 d7 Ra1 d8B Qb1 Rd2 c2 Nab6 c1N Bd4 Qc2 Bb4 Qb1 Kg1 f2+ Kh2 f3 Kg3 f1N+ Kh4 f4 Kh5 f2 Qa3 Kf3 Bh4 Kg2 Rc2 f3 Nd2 Nh2 Kg5 f1N Kh5 Nf6+ Kh6 f2 g8Q Ng3 Kg7 f1N Kf8 Ne3 Qh8 Nhg4 Bg8 Kh2 Bh7 Ngf5 Qg8 Qd7 e6 Nd1 e7 Nfh6 e8Q Qe6 Qh8 Nhg8 Qd7 Qae5 Qd6 Qa2 Qd5 Qe4 Qb2 Qa4 Qa3 Qa5 Nf3+
1k1r3Q/2PBr1Nn/1qRnrPn1/3Q3r/qbRR1n2/8/1n1N1N1Q/4RK2 b - - 0 1 illegal: No possible last move
7Q/1r2N2q/3RB3/2Bb1N1r/1qPPr2q/1bbnQrBB/4qQ2/1N3k1K b - - 0 1 illegal: No possible last move
2nQ3Q/rBbRbb2/kr2R1n1/Nn1Q2N1/4P2p/1q4NP/3r1RRK/4q3 b - - 0 1 legal: proof: b4 e5 a4 b5 axb5 c5 bxc5 e4 d3 Ba6 dxe4 Bc8 e3 f5 Ra4 g5 Ra2 f4 Ra1 fxe3 f4 Na6 f5 Be7 Bb2 Bf8 Be5 Nb8 Bf4 gxf4 g4 h5 c4 a5 c6 d5 b6 h4 h3 a4 f6 e2 Kf2 e1Q+ Kg2 d4 c5 d3 c7 Kd7 b7 Kc6 g5 Kb5 f7 f3+ Kh2 a3 c6 a2 g6 f2 g7 Nd7 b8N Rh6 Nd2 Ne7 g8R Ne5 Ne2 Be6 c8Q Qb6 c7 Ra7 Nf3 d2 Rg2 N5g6 Qd8 Nc8 Ng5 Be7 f8R Bf7 Nc6 Ka6 Na5 Qb3 Rc1 a1B Ng3+ Kb6 Re8 Be5 Ba6 f1R Bb7 Rf2 Rf1 B5d6 Qh5 d1N Rc5 Ra2 Rff2 Nc3 Rd5 Nb5 Qd1 Bf4 Rd7 Re2 Qd5 Rd2 Ba8 Ka6 Bc6 Ba3 Re6 Be7 Nb7 Nb6 c8Q Bc7 Qb8 Nc8 Na5 Bb6 Qbe5 Bc7 Qeh8 Ne5 Qdf8 Rf6 Qd8 Ng6 Re5 Re6 Ba8 Rc6 Re6 Rb6 Bb7+
1kB3Q1/qBbQ1Nqp/5n2/BqP5/nQ1N4/4br1P/1RKQbnN1/4r3 b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 g5 f4 e5 a4 Bb7 axb5 Ba6 d4 Bc8 Ra3 f6 Rf3 f5 dxe5 fxe4 f5 Bb7 Rf2 Bc8 Rf4 gxf4 Kd2 d5 g4 Kd7 c4 Kc7 b6+ Kb7 e6 a5 e7 d4 e8Q e3+ Kc2 f3 g5 e2 g6 e1B f6 a4 h3 a3 g7 a2 f7 a1Q Bd2 f2 Nc3 Bg4 Nb5 Qg5 Nf3 Na6 Nh4 Nf6 g8Q Qg7 Rh2 Bd6 f8Q Be2 Ba5 Bc7 Ng2 Bd2 Qd7 Re8 c6+ Kb8 b7 Be3 Qd2 Nc5 Nd6 Na4 Nf7 Qa3 Qfb4 d3+ Kb1 Rf8 c5 Re8 Ne1 Rf8 Bg2 f1Q Bh1 Qf2 Ng2 Qf1+ Qc1 d2 Kc2 d1N Qcd2 Ka7 b8N Nf2 Nf4 Re8 Be4 Re7 Ng2 Re5 Bd3 Rf5 Ba6 Rf3 Bb7 Qaa1 Qgc8 Re8 Qcd8 Bd6 c7 Re7 c8B Bc7 Ba6 Qa3 Nc6+ Ka8 Nd4 Re8 Nb5 Kb8 Bab7 Bd1+ Kb1 Nd3 Nh4 Bg1 Qe1 Nab2 Bb6 Qa7 Nd4 Na4 Rb2 Re2 Qec3 Be3 Qd2 Re1 Qg8 Nf2 Ba5 Qb5 Ng2 Be2+ Kc2
KNB5/1n1BPnB1/1r1Q2qr/1P4nq/2k5/1qN1N1Nr/1p1Q2b1/2RQ2b1 b - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 a4 Qd7 b4 Qb5 Ra2 Qc6 b5 Qf6 Rb2 Qd8 Qc2 b6 Rb4 axb4 Qc6+ Ke7 Qxb6 Kd7 Qb7 Ke8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 h4 g5 d6 c5 a5 b3 a6 b2 h6 g4 d5 f3 a7 f2 h7 f6 h5 g3 d7 g2 d6 Bh6 Qc7 Kb3 Kd5 f5 e4 f4 e5 f3 e6 c4 e7 c3 Ne2 g1R Bh3 f1N Ng3 c2 Nc3 Na6 Kc6 Be3 h6 Rb8 a8B f2 Bb7 Nc5 Qa5 Qf8 d8Q Qf5 d7 Nh2 Bd2 Ra1 Rc1 f1Q Kb6 Qg1 Ka7 Bd4 Qc7 Ra4 d8N Ra3 Qd6 Kc4 Nc6 Qh5 Bd7 Nf3 Bf4 Ng5 Be5 Qg2 Bg7 Bg1 Ba6 Rb7+ Ka8 Rb6 Qd1 Nb7 Nb8 Rb3 Qa3 Qe4 Qad6 Qeg6 Q6d2 Nf7 Qd6 Nf6 Q1d2 Ne4 Qd1 Re8 h8Q Neg5 h7 Rf8 Qg8 Rd8 h8N Rf8 Be8 Bh3 Bd7 Bg2 Q1d2 Rc8 Qd8 Rcc6 Qd1 Qf5 Q6d2 Rh6 Ng6 Qd3 Nf4 Qdg6 Nfd5 Ra3 Ra1 c1Q Rb1 Qcc2 Rc1 Na5 Bac8 Nb7+ Na4 Rd3 Nac3 Qb3 Qc7+ Rc6 Qd6 Rb6 Nf1 Rh3 Ng3 Qd3 Na4+ Qdc2 Nac3 Qcg6 Ne3+
N1rn2QN/3k1Q1n/1b5P/4rr1r/PQR3B1/4B1r1/BQ1K1Np1/qb3b2 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h5 g4 Nc6 g6 Nb8 g5 Ra5 Bg2 Ra7 Bf1 Ra8 a4 Qd7 Ra3 Qd6 Rg3 Qd8 Rg4 hxg4 h4 c5 d4 e5 g7 b5 f6 b3 g6 c4 f7+ Kd7 h5 e4 d6 c3 d5 b4 Nd2 e3 Rh4 b2 Qe2 b1B Nh3 g3 Nc4 c2 Nf2 Nf6 g8Q g2 g7 b3 h6 b2 Qd2 e2 Qb4 Ra5 Be3 c1R+ Kd2 e1R Be2 Nc6 Bh5 Be7 f8Q Ba6 Qff7 Rc3 Rf4 Nh7 Bg4+ Bf5 Rd4 b1R Qb2 Rb5 Qgf8 Rh1 g8B Rbe1 Rf4 Qa5 Qb8 Rc5 Q8b4 Nd8 Re4 Rh5 Rf4 Kc8 d7+ Kc7 Rd4 Bb1 Nb6 Bf1 d6+ Kc6 Rf4 Rcf5 Na8 Bf6 Re4 Bd4 Rf4 Bb6 Re4 Ne6 d8Q Qe5 d7 Ra3 Qdf8 Nd8 Rf4 Rc1 Q8e8 Rc5 Rc4 Qf6 Q2b3 Qa1 Qb2 Nb7 d8N+ Kd6 Ne6 Nd8 Nf4 Rc3 Ng6 Ra3 Bd4 Rg3 Be3 Re5 Qf3 Ref5 Bf7 Rg8 Nh8 Rgg5 Qg8 Kd7 Rc3 Rc8 Ba2 Rg7 Qff4 Re7 Rc4 Re5 Qfg5 Rf3 Qf6 Rg3 Qff7+
3R4/Q1N1p2b/n7/BrNPNR2/qRP3bb/2Qn3Q/1rR4b/1nk1bK2 b - - 0 1 illegal: No possible last move, all moves rejected
Q1b1b3/K2Rb1B1/6q1/n1R3n1/1pn2QQP/1Q1r3R/N1PB1rr1/3k2bB b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 g4 h5 g5 g6 Nd2 Rh7 Ndf3 Rh8 Ne5 Nf6 fxg6 Ng8 Ng4 hxg4 f5 Ra4 Kf2 Ra7 Ke1 Ra8 Kd2 b3 Kc3 Ra3 Kd4 e5+ Kc4 Ke7 Kb5 d5 h4 b2 f6+ Ke6 g7 Kf5 g6 Ke4 f7 b1N c6 g3 c7 d4 Kb6 d3 Nf3 g2 Bg5 g1B+ Nd4 d2 Bc4 Qf6+ Be6 Bd7 c8R Be7 f8B Nh6 g8Q Nf7 g7 Nc6 Rh3 Be8 Qc1 d1B Rb8 Bg4 Rd8 Rd3 a4 Na3 a5 Rh7 Bb3 Bc8 a6 Rh6 a7 Rg6 Rb1 Na5+ Be6 Qf5 a8Q N3c4+ Ka7 Qg4 Rb5 Qg2 Qh8 Qg3 Rbd5 b5 g8Q b4 R8d7 Rg7 Be3 Rg4 Nb3 Kf3 Qb2 Ke2 Rc5 e4 Nc1+ Kd1 Bd2 e3 Qhd4 e2 Na2 e1R Bd5 Re2 Bh1 Rf2 Qb3 Qd6 Qe5 Rgg2 Qf4 Qc6 Qgg3 Ng5 Bg7 Qg6 Qgg4+
1N3n2/b5R1/2B3p1/2q1BNP1/1N1rk1PQ/1q1bq3/1q1qn1K1/1QrBQB2 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 axb5 f5 fxe5 g6 d4 cxd4 Ra3 f4 Rg3 fxg3 hxg3 Qb6 g4 Qa5 g5 Qd8 Kf2 Kf7 c4 Ke6 g4 d5 e4 h5 b6 a5 c5 h4 b5 a4 b7 d3 b6 d2 c6 a3 c7 d4 Rh3 a2 Nc3 a1Q Nf3 d3 Na4 Bc5+ Kg2 Ne7 Rh1 Nec6 Nb2 Qe7 Qe1 d1Q Bf4 d2 Nd3 Rd8 Nb4 Nd7 b8Q Qb2 b7 Nf8 Bh2 Bd7 c8Q Ba7 Qcc7 Qc5 Nd4+ Kf7 Qa5 Qdb3 Nf5 Ke6 Qac7 Bc8 Qh7 Nd4 Bf4 Ne2 Rh3 d1Q Qh6 Kf7 e6+ Kg8 e7 Kf7 e8B+ Ke6 e5 Rd4 Bh2 Qdd2 Ba4 Bd7 Bf4 Bb5 Qh7 Qbe3 Bd1 Bd3 Rf3 Rc4 Bg3 Rc1 Rf4 Qb3 Rd4 Qdb2 Rd7 Qed2 Rg7 h3+ Kh1 h2 Qh4 Qde3 Kg2 Qbd2 Qd8 Rc8 b8N Rc4 Qa5 Rd4 Qa1 Rc7 Qb1 Rc6 N4a6 Kd5 e6 Ke4 e7 Qdb2 e8B Qed2 Kf2 h1Q Nb4 Qh3 Be5 Qhe3+ Kg2 Qa5 Rb7 Rc1 Rg7 Qc5 Bc6+
1q1bnR1K/B3B2P/4QPR1/BN5q/kQ1bB2p/5nr1/1Q3nr1/1n3R1n b - - 0 1 illegal: No proof kernel
4nqbn/3PN3/3Bb1k1/3bB2R/K3R1rQ/1r1bBB1P/1pbR1q2/3Q1Q2 b - - 0 1 illegal: No proof kernel
2N3rN/1rrN2B1/Q2Nb1BK/bQ2qq2/1P1Rn3/1p2Pn2/1k4b1/B2r3Q b - - 0 1 illegal: No possible last move
1n3R2/1r1rBqbn/QR2Q3/4bRP1/1B1BN1KP/3Rp3/2kb3q/3r2Qb b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f7+ Kd7 cxd3 Qe8 d4 Qd8 d5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Na6 f5 Nb8 f6 Bb7 Nc3 Ba6 Bd3 Bc8 Bf5+ gxf5 Ne4 h6 g5 h5 Nf2 Ba6 Ng4 hxg4 Rb1 Bb7 Ra1 Bc8 Ke2 Kd6 b4 Ke5 h4 Ke4 d4 a5 b6 c5 b7 e5 b5 f4 b6 g3 d6 g2 d5 f3+ Kf2 a4 Kg3 a3 d7 f2 d6 f1Q Bb2 c4 Kg4 a2 Bd4 c3 Ne2 c2 Rb1 Bg7 f8B c1B f7 Bd2 Ng3+ Kd3 Ne4 a1B Be7 Qf6 f8R Rh7 Rf1 Qc7 Rf5 Qf7 d8Q Ra7 Qg1 Kc2 d7 Qd6 Qe8 Nf6+ Kg3 Bb2 d8R Be6 Qd7 Bd5 Qe6 Ba1 Rb3 Qc7 Rd3 Bb2 Rd6 Ba1 Qh1 g1R+ Qg2 Rd1 Qg1 Nbd7 b8B Rb7 Ba7 Nb8 Bc5 Bac3 Rc6 Qd6 Bb4 Rd7 b7 Qc7 Nf2 Bh1 Bd4 e4+ Rd6 e3 Ne4 Ba1 Kh3 Bac3 Rb6 Qf4 Bdc5 Be5 Bd4 Nc6 b8Q Qf2 Qa8 Nb8 Rf4 Rb7 Qa6 Rd7 Qg2 Qg1 Kg3 Qh2+ Kf3 Rb7 Rf5 Rh6 Qd7 Nh7 Kg4 Rd6 Qe6 Rdd7 Qg1
3QNQ1b/k6B/n2QPBq1/3PKN2/4R1q1/1bpb1b1B/5B1N/1nn1r1r1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 g5 hxg5 a5 b4 Qd6 b6 Ne7 b5 Qd8 Ra4 Ng8 Rb4 axb4 Kf2 Kd7 Kf3 f5 d4 h5 g4 c5 e4 c4 g6 h4 b7 Kc7 g7 Kb6 g5 b3 d6 h3 d7 c3 e5 h2 g6 b2 Qd2 Qg5 d8B+ Ka7 Bh3 Be6 Ne2 Ne7 g8B Nec6 g7 Na5 Bh7 Na6 g8N Bb3 e6 Bg7 Nf6 Qg6 Re1 Rg8 Ng3 Bh8 Re4 Rb8 d5 h1B+ Qg2 Rg7 Nd2 b1N Ne8 Rg8 Bf6 Qg4+ Kf2 f3 Ke3 f4+ Kd4 f2 Qh2 f1Q Ke5 f3 Nf5 f2 Nf3 Qfg1 Qf4 f1B Nh2 Bd3 Be3+ Nc5 Qh6 Bf3 Bf2 Qg6 Qf8 Q1g4 Bh4 Na6 Qd6 Ba4 Qd8 Nb3 Bf2+ Nac5 Qd6 Nc1 Qf8 Bb3 b6+ Ka6 Qd6 Ra8 b8Q Rg7 Qbd8 Kb7 Nc7 Ra1 Q8f8 Na6 Ne8 Rg8 Be1 Ka8 b7+ Ka7 Bf2+ Nc5 Rf4 Nd2 Qg7 Rf8 B2h4 Ne2 Nd4 Na6 Bd8 Rg1 Re4 Nc1 Bdg5 Rf4 Bf6 Nb1 Nf5 Bh1 Qgf8 Rff1 Be1 Bf3 Bf2+ Nc5 Qd8 Re1 b8Q+ Ka6 Qbd6+ Ka7 Kd4 Na6 Ke5+
1R1b1RnQ/1BR1q1b1/2rbp3/q1q2q2/rP2N3/Q1n2kP1/6N1/1QKR3N b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 h3 Bb7 f5 Bc8 b3 Be6 Bb2 Bf7 Be5 Bh5 Bf4 Bg4 hxg4 gxf4 d4 Kf7 Kd2 Kf6 d6 Kg5 d5 a5 d7 c5 b4 h5 b6 e3+ Kc1 e2 g3 e1Q f6 c4 f7 a4 d6 c3 b7 c2 Be2 a3 Bd3 a2 Rh4 f3 Ba6 f2 Nc3 f1Q Rh2 h4 Nce2 h3 Nf4 Rh6 Ng2 Nc6 b8R Qa5 d8Q Nd4 d7 Rc6 Bb7 Nb5 Qc7 Nc3 d8Q Qc5 Qa5 Qff5 Qa3 Ra4 Qd4 e6 Qh8 Bd6 f8R Qee5 Rh1 h2 Nh3+ Kg6 Rg1 h1Q Nf2 Qh7 g5 Qe7 Nh1 Qa5 Rb1 a1B Qd3 Qec5 Rd1 Ne4 Qdb3 Bg7 Ra1 Nc3 Qb1 Nh6 Ra2 Kh5 g6 Kg4 Rb2 Ng8 Ra2 Bge5 g7 Kf3 Rb2 Nh6 g8N Bg7 Nf6 Ng8 Rbc8 Qe8 Ne4 Qe7 Kd2 c1B+ Kc2 Bch6 Rb8 Bg5 Ra2 B5f6 Kc1 Qf7 Re2 Bd8 Red2 Qe7 Rd4 Bde5 Rd7 Bd6 Rc7
BR2B3/rBR1n1K1/2qP2bp/1P1qr2k/rb6/r3n2N/1b1RBQ1Q/1Q6 b - - 0 1 legal: proof: g4 e5 a4 d5 f4 b5 axb5 h6 fxe5 d4 g5 d3 b3 Qd6 g6 Qe6 cxd3 Qh3 d4 Qd7 d5 Qd8 h4 Qd6 h5 Na6 Ba3 Qd8 Be7 Nb8 Bg5 Bc5 Na3 Bb4 Nc2 Bf8 Ne3 Nf6 Nf5 hxg5 h6 Ng8 h7 Bd6 Nh6 gxh6 Rh3 Ba3 Rh1 Bf8 Kf2 f5 Kf3 c5 d4 a5 e4 g4+ Kf4 c4 e6 c3 Ke5 f4 e7 f3 d6 g3 b6 a4 b4 c2 b5 c1Q d5 f2 g7 Kf7 d7 Kg6 e8B+ Kg5 b7 a3 Be2 f1R Nh3+ Kh4 Rh2 Nf6 g8B Qc6 Rc1 a2 Bgf7 Rg8 h8Q a1R Be6 Bb4 d6 g2 Bd5 Rg7 Qf8 g1B Rf2 Qa5 d8Q Qa2 Rc3 Qac4 Qb1 Bf5 B8h5 R8a6 Bhf3 Bg6 Ke6 Rc7 e5 R1a3 Qde7 R6a4 Rc1 Nd7 b8R Re1 Qef7 Ng4 Qf4 Qa2 Qh2 Nb6 Rc5 Ne3 Kf6 Qd2 e6 Rca7 e7 Nc8 e8B Ne7 Kg7 Qd3 Bde4 Qdd5 Rc1 Qb6 Rc7 Qbc6 Rg2 Bf2 Bc4 Bg3 Rd2 Re2 Bh1 Kh5 Qff2 Bh4 Bf5 Bg3 Bc8 Re1 Bb7 Be5+ Qf6 Bb2 Bd3 Nd1 Bf1 Re5 Qff2 Qd3 Bd5 Qf3 Be2 Ne3 Be6 Qd5 Ba8 Qc6 Bc8 Qd5 Bcb7 Qc6 Bf1 Qfd5 Be2+
n2Q4/1k2r1RP/1BP1Bn2/q5b1/1r3NR1/Q2bB3/r3r1pK/1qR1QbB1 b - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 g4 h5 g5 g6 Nc3 Ba6 Ne4 Bc8 Nf2 Ba6 fxg6 Bc8 Ng4 hxg4 f5 Rh7 Ra3 Rh6 Ra1 Rh8 Kf2 d5 Kg2 Kd7 b4 Kc7 h4 e5 c4 a5 h5 d3 f6 d4 g7 a4 h6 d2 g6 d3 b6+ Kb7 b5 a3 h7 g3 f7 e4 Ne2 e3 Rh4 a2 Qe1 d1R Rg4 d2 Nf4 Nf6 g8Q e2 g7 Be7 f8Q Nbd7 c5 Ra4 Qb3 Rb4 g8R Qc7 Kh1 g2+ Kh2 Qb8 Rb1 a1R R8g7 Ra2 Qd8 Re8 Qa3 Qa8 Ra1 Qa5 Rb1 Nb8 Ra1 Na6 Rb1 Nc7 Ra1 Kb8 b7 Na8 Rb1 Ka7 b8B+ Kb7 b6 Bf5 Bc7 Bd3 Ra1 Nh5 Rb1 Bg5 Ra1 Re7 Rb1 Kc6 b7 Nf6 b8B Kb7 Ra1 Ra4 Bb6 Rb4 Bb2 Rc1 Bd4 d1B Bg1 Rcc2 Rc1 Rd2 B8c7 Ba4 Be5 Bab5 Bed4 Rdb2 Bde3 Rc2 Qh4 e1Q Qg3 Qd1 Qe1 Rf2 Be2 Qc2 Bd1 Qb1 Bb3 Bf1 Bc4 Rfe2 Be6 Bd3 c6+
4n1Nb/r1B4R/p3q3/Q5Q1/B2QP1bK/bR1nB1r1/nP3n1k/1bQ1R3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 gxf5 Ne7 Nc3 Ng8 Ne4 h6 Nf2 h5 Ng4 hxg4 Kf2 Ke7 e4 Kd6 h4 Ke5 f6 c5 d6 g5 h5 a6 d7 f3 Kg3 f2 d3 c4 h6 c3 b6 c2 f7 Nf6 h7 Qe7 d8Q Ne8 b7 Rg8 h8R Qe6 Be3 c1N Qe7 Ra7 Ra3 Na2 R8h7 Nd7 Qc1 Nc5 Ne2 Rg6 Bh3 f1B Nf4 Bg7 f8Q Bh8 Rb3 Rg7 Kf2 g3+ Kf3 g2 Kg3 g1N Nh5 g4 Nf6 Rg5 Kh4 g3 Ng8 g2 Qf2 Rg3 Qfe1 Be2 Qa5 Bf1 Bf5 Nh3 Qg5 Nf2 Rg1 Be2 Re1 g1B b8Q+ Nd6 Qbb6 Ne8 Qbb4 Bd1 Qba4 Bc2 Qc4 Bb1 d4+ Kd6 d5 Ke5 Qcb4 Ncd3 d6+ Qd5 d7 Nh1 d8B Rf3 Bd2 Bc5 Qcc4 Nhf2 Qbb6 Ba3 Qc1 Re3 Qgf6+ Kf4 Qbd4 Kf3 Be6+ Kg2 Bc7 Rg3 Be3 Kh2 Bd7 Qd6 Bb5 Bg4 Ba4 Qe6 Qfg5
b4R1Q/2QRP3/3BB2b/r3b1qn/2BQ1N2/nnn1P2K/Rp3bB1/3r3k b - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 g5 f4 e5 fxe5 g4 Na3 g3 b4 axb4 hxg3 bxa3 g4 Bb4 g5 Bf8 Kf2 Kd7 Kg3 f5 d4 c5 e6+ Kd6 g6 h5 g7 b5 a5 c4 a6 b4 a7 f4+ Kh2 a2 g4 c3 g5 b3 e7 h4 g6 h3 Qc2 f3 Bb2 f2 Qd3 c2 Qe3 c1B Qh6 Bb7 Kg3 h2 Qd2 Nf6 g8R Na6 g7 Ne4+ Kg2 Nc3 Ba3+ Nb4 Nh3 Bc6 Qc2 Bh6 Nf4 Rh7 Rd1 a1B Kh3 Bb2 Rg1 h1N Rg2 Ng3 Rh8 Nh5 g8B Bfg7 Be6 Be5 Rf8 Bc1 Rh2 Be3 Qe4 Qa5 Qd3 Rd8 a8B Rf7 Bb7 Rf5 Ba6 Ba8 Bc4 Qc5 Rg2 Nc2 Rh2 Rg5 Qh7 Rd7 Qh8 Rf5 Bb4 Na3 Rd2 Rg5 Ra2 b2 Rg2 Kc7 d6+ Kc6 Rg4 Rd8 d7 Kd6 d5 B3d4 Bg2 f1N Rg3 Bf2 Rd3 Rf5 e3 Nd2 Bf1 Nb3 Rd4 Bf6 Rd2 Ke5 d6 Ke4 Rd4+ Kf3 Rd1 Re8 d8Q Be5 Qc7 Rd8 d7 Qd5 Bd6 Rg5 Bf5 Qg8 Bfe6 Rf5 Bcd3 Qg5 Rd2 Bd4 Bdc4 Ra5 Rd3 Be5 Rd1 Rb8 d8Q Rbb5 Rd2 Rd5 Rc2 Rd1 Rd2 Bg3 Rd3 Kf2 Qdd7 Kg1 Qa4 Kh1 Qb4 Re1 Qbb6 Ra1 Qd4 Bf2 Bb4 Nd5 Qc3 Ndf6 Rd7 Rd1 Qd4 Ne4 Bd6 Nc3 Bg2+
2b1B2r/3P2k1/q1N4p/2Q1RN1K/1nbnbb2/B1PN3B/3rQ3/4rNrQ b - - 0 1 legal: proof: e4 d5 h4 c5 b4 b5 a4 g5 Qg4 f6 Qd7+ Kf7 Ra3 f5 exf5 gxh4 Rb3 d4 axb5 d3 b6 Na6 b5 Nb8 Rb4 cxb4 Qxd3 Kf6 Qd7 Kf7 Ke2 a5 Kf3 a4 Kg4 h3 d4 h6 f4 b3 f6 a3 b7 b2 b6 a2 f5 a1R d5 h2 d6 Bg7 c3 R1a4+ Kh5 R8a7 g4 Ra1 g5 R1a6 g6+ Kf8 f7 e5 Bh3 e4 Nf3 e3 Qc6 e2 d7 e1R Nbd2 b1B Nd4 Rf1 Ba3+ Qe7 Qd5 Rf2 Nf1 Nc6 b8Q Ra2 b7 Bd3 Qbe5 Qc5 b8N Rd2 Qe2 Nb4 Nbc6 Bf6 Qde4 Kg7 f8N Ne7 Nfe6+ Kg8 g7 Bg5 f6 Bc4 Q4f3 Nf5 Nf4 Qb5 Nd3 Bf4 f7+ Kh7 g8B+ Kg7 Qfe4 Ra4 Bh7 Qa6 Bg6 Ra5 Rg1 h1B Rg5 Re5 Q4g2 Re6 Qg1 Be4 Qh1 Nd6 Rc5 Nf5 Re5 Ra8 Nb5 Rg8 Nd6 Nd4 f8Q+ Kh8 Qf5 Kg7 Be8 Rh8 Qf2 Rg6 Qe2 Rg1 Re6 Rb8 Qc5 Rb5 Re5 Ra5 Bc1 Ra1 Ba3 Re1 Nf5+
1n4qq/1BN5/P2Q1b2/1R1NBp2/Q2Qb2n/1qnB1P2/1r3n1K/N3k1nB b - - 0 1 legal: proof: b4 a5 g4 h5 a4 e5 d4 f5 dxe5 b5 g5 Ra7 c4 axb4 cxb5 Ra5 Ra3 Ra7 Rg3 Ra6 Rg4 Rf6 gxf6 hxg4 e4 Kf7 h4 Kg6 e6 Kh5 b6 g5 e7 c5 b7 d5 e5 d4 a5 b3 e6 c4 f7 b2 e8B c3 e7 c2 a6 d3 Nf3 g3 Bc6 Kg4 e8B g2 h5 g1N h6 Be7 f8N Bf6 h7 Ne7 Ne6 Ng6 Nc7 Nh4 Nc3 b1Q Bf4 c1N N3d5 Na2 Be5 Nc3 Be2 d2+ Kf1 Qc2 Bd3 Qb3 Rh2 Rf8 h8Q Be6 Qa1 d1N Ne1 Rf7 Nc2 Kf3 Qa5 g4 Qa4 g3 Na1 Rg7 Bed7 Rg4 Bc8 Rb4 Qg7 Qh8 Rh3 Qb1 Qd7 Rb2 Qd6 Bg8 Qdb4 Qa2 Qd4 Qb3 Rh2 Nd7 b8Q g2+ Ke1 Bf7 B8b7 Bh5 Qd8 Nb8 Qd6 Bf7 Ne7+ Bd5 Rh1 Be4 Ned5 Ra2 Rh3+ Kg4 Re3 Rb2 Re2 Kf3 Rc2 Na2 Rc5 Nac3 Rb5 Nh3 Bc4 g1Q+ Bf1 Qg4 Bd3 Qgg8 Kf1 Ng5 Kg1 Nh3+ Kh2 Ng1 Bb1 Ke2 Bd3+ Ke1 Be8 Nc6 Bh5 Nb8 Bf3 Be7 Bg2 Bf6 f3 Nf2 Bh1
1N1Q3r/r3P1r1/3r1q2/B1pr1r2/1RRNKb2/1P1Qn2Q/1k1rb2R/NN6 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Ra4 f3 Ra5 f4 Bh3 Nc6 Ra4 Nce7 Ra1 Nf5 gxf5 Nh6 Bg4 hxg4 Qc2 Ng8 Qa4 Kd7 Qd1 Ke8 Kf2 Rh6 d4 Kf7 h4 Kf6 e4 a5 b3 g5 b6 c5 h5 a4 d6 a3 d7 a2 b7 Ne7 d5 Ke5 f6 Nf5 f7 Bd6 f8N Ne3 Nd2 Kd4 Ne6+ Kc3 e5 Rf6 b8R Ba6 h6 Bc4 Rb1 a1R h7 R1a7 h8Q Bc7 d6 g3+ Ke1 g2 Kf2 g4 Qh3 Bb5 Rh2 Qe7 Rb6 Rh8 d8N Rg6 d7 Bf1 Ra1 g3+ Ke1 Ba6 Rb5 f2+ Ke2 f1R Ra3 Rb7 Nc6 Ra7 Ra2 Bd6 Ngf3 Rgh6 Ne1 g1R d8Q g2 Ra5 Rh5 Ra4 Qf6 Nc2 Rh1 Qf3 g1R Na1 Rgg7 Qh3 Re1+ Kf3 Re2 Ke4 f3 Ba3 f2 Nb8 f1R Bb4+ Kb2 Nb1 Rf3 Qd5 Rd1 Ba5 Rc2 Rb6 Be2 Rc4 Rd3 Rbb4 Rcd2 Nf4 Rf2 e6 Be5 e7 Rf1 Qde6 Rd6 Qd5 Rf2 Ne6 Bg3 Qd3 Rhd5 Rb5 Rff5 Nd4 Bf4 Rbb4
Rr4R1/b3qN1q/N7/2r1r1n1/pq1PQ1KN/k3R3/1PnB4/nQr1RQ2 b - - 0 1 illegal: Other
Q4bR1/Qn1QNk2/3p3r/1qPR2nR/8/NBqR1bPq/4b1b1/nK4N1 b - - 0 1 legal: proof: g4 a5 d4 c5 a4 cxd4 f4 f5 e4 b5 axb5 g5 exf5 Ra6 f6 Rc6 f5 Rc3 Bf4 Rg3 hxg3 gxf4 Kd2 e5 Kc1 h5 b4 a4 c4 e4 g5 d3 b6 d2+ Kc2 a3 b5 d6 g6 h4 c5 e3 g7 e2 b7 e1Q b6 a2 Ba6 f3 Na3 h3 Bc4 h2 Bb3 f2 Qg4 f1B Rd1 a1N+ Kb1 Nc6 b8R Rh6 b7 Be2 f7+ Ke7 Ra8 Nf6 b8Q Bb7 g8R Nh7 Qa7 Qe8 Qga4 Na5 Qd7+ Kf6 Rg5 Bg2 Rh5 Kg7 f6+ Kg6 Rd5 Nb7 Rd8 Ng5 Ra8 Be7 f8N+ Kf7 Ng6 Bef3 Rc8 Qe3 Rd8 Qc3 Ra8 Qc8 Rb8 Qc6 Rg8 Qa4 Qh3 Bf8 Ne7 Qb5 Qd7 Be2 Qc6 Ke6 f7 Kf6 Qd7 Bef3 Re1 d1B Re3 Bde2 Nc8 Bg7 f8Q+ Kg6 Qfe8+ Kf6 Qe4 Bf8 Ne7 Kf7 Red3 Nd8 Qea4 Nb7 Qa8 Rg6 Q4a7 Re6 Nh3 Rh6 Rg1 h1Q Rf1 Qh2 Rh1 Qa4 Ng1 Qb5 Qc7 Qh4 Qd7 Qg4 Rh4 Qh3 Rh5
Bbb3b1/2r5/2n2NbN/kBK1Q3/1r1rQ3/2b1pP2/PBb1N3/q1Q2BR1 b - - 0 1 legal: proof: e4 a5 b4 axb4 c4 g5 f3 d5 cxd5 f5 exf5 g4 Na3 g3 Rb1 Qd6 Rb3 Qd7 Re3 Qd8 h4 Nh6 Re2 Ng8 Rf2 gxf2+ Ke2 Ra6 Rh2 Ra7 Rh1 Ra8 g4 Qd7 g5 Qd8 h5 Nc6 Bg2 Ne5 Bf1 Ng6 hxg6 Be6 Rh2 Bd7 Rh1 Bc8 Kd3 Kd7 Kd4 h5 g7 e5+ Kc4 b5+ Kd3 c5 d6 Kc6 f6 Kb6 g6 b3 d7 b4 Kc4 e4 d4 e3 f7 h4 d5 b2 d6 b1B Ne2 h3 Qd4 h2 Qf6 b3 Qe7 b2 Nb5 Rh4+ Nf4 Bc2 Nd4 b1B Nd5+ Ka5 Qe4 Rb8 Rg1 h1R Nf6 Ne7 g8B Nc6 g7 Rb4+ Kd5 c4 Kc5 c3 Bb2 Rh7 Ne2 R1h4 Qe5 Qc7 d8Q Rhd4 Qde7 Bg6 d7 c2 d8N c1B Qe4 Bd2 Qd6 Be7 f8Q Bc2 Nf7 Bc3 Nh6 Bd8 Qde7 Qe5+ Bd5 Bc7 g8B Bb8 Qe6 Rc7 Bh7 Qf5 Q6e5 Qd7 Bc4 Qg7 Bb5 Qh8 Qf7 Qg7 Qc4 Qh8 Bg2 f1B Bg8 Qg7 Bd5 Qh8 Nc1 Bfd3 Ne2 Bh7 Bf1 Bg8 Qh4 Bg6 Qe1 Qh7 Qc1 Qd7 Qd3 Qh3 Qdf5 Qg3 Qfe4 Qe1 Qd2 Qb1 Qc1 Qa1 Rg3 Ne7+ Bdc6 Ra7 Bb7 Nc6 Ba8 Rc7 Rg1
K2B1Rr1/B1b3P1/q5Q1/1R2b2P/2b3Q1/1RnRN3/1qbQ1p1b/rB1bk3 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 d3 cxd3 Bd2 d4 Bf4 Qb6 Bc1 Qd8 g4 h6 g6 Na6 Nd2 Nb4 Ndf3 Nd5 exd5 h5 g5 Ba6 Ne5 Bc8 Ng4 hxg4 Kf2 Kd7 b4 Kd6 c4 Ke5 h4 Ke4 g7 e5 c5 f5 b6 a5 d6 d2 c6 a4 c7 d3 b5 f4 d7 a3 g6 a2 h5 f3 b7 Kd4 b8R Kc3 Ke3 f2 Ke4 g3 Kd5 e4 Kc6 e3 b6 e2 b7 e1B Nf3 g2 Rb1 g1B Nh2 a1Q Ng4 Bh2 Rb5 Nf6 g8Q Ne4 Ne3 Bfd6 Qg4 Qf6 d8B Be6 c8Q d1B g7 d2 Qh7 Rg8 Qhg6 Bhe5 Bd3 Qb2 Rh3 Ra1 Bb1 Bc4 Kb6 Ba4 Ka7 d1B Ka8 Bh2 Qc6 Bde5 Rc8 Bdc2 b8R Kd3 Rf3 Ke2 Rb3 Bd1 R8b5 Ba5 Rd3 Qe6 Rcb8 Bac2 Rf8+ Ke1 Rbb3 Qd6 R8b5 Nc3 Qcc8 Qa2 Ba3 Qe6 Bc5 Qa6+ Ba7 Qb2 Qc5 Bac7 Qa3 Qa2 Qc1 Qb2 Qd2#
5b1b/3pnQ2/2B1kBP1/1Q2r3/1bR1P2r/3bNqQ1/3B3r/R1qrB1KR b - - 0 1 legal: proof: g4 e5 d4 exd4 a4 f5 h3 g5 Na3 b5 axb5 c5 Nc4 Na6 Ne5 Nc7 Nd3 c4 gxf5 cxd3 h4 g4 Kd2 Ne6 Ke1 Ng5 hxg5 Bd6 Ra5 Be7 Ra1 Bf8 b4 Ke7 e4 a5 f4 h5 Kf2 d2 c4 a4 g6 a3 f6+ Kd6 c5+ Ke6 c6 d3 f5+ Kd6 f7 h4 b6 a2 f6 h3 c7 h2 b7 Ra6 b8Q Nh6 b5 Ke6 b6 Ra3 b7 Ng8 Nf3 Rh4 Ne1 Ne7 Qf3 d1Q Ng2 d2 Ne3 Ra5 Qg3 Re5 Bb5 Qe1+ Kg2 d1R Bc6 Qc3 Bd2 Qc1 Qa7 Qe8 b8Q Ba6 c8R Bd3 Qb5 Qd8 Be1 Qa5 Qc7 Qaa3 Qf2 g3 Qcb8 Bg7 f8B Bh8 f7 Bg7 Rf1 h1R Bd2 R1h3 Kg1 g2 Qf4 Bh6 Bg7 Rh2 Bf6 Bf8 Rc7 Qac3 Qe8 Q3a3 Qg3 Qb3 Ra7 Qba3 Ra4 Qac3 Rc4 Qb3 Rb1 a1B Be1 Bc3 Ra1 Bb4 Bd2 Bg7 f8B Bh8 Be1 Qba3 Bh6 Qac3 Kf2 Qb3 Rh1 Qba3 Ng4 Qb3 Bhd2 g1B+ Kf3 Bgc5 Ne3 Qbc3 Qf8 Nd5 Qg7 Bf8 Qh7 Ne7 Qg7 R2h3 Kg2 Rh2+ Kg1 Q3c2 Bc3 Qe2 Bd2 Qf3 Qf7+
3Q2N1/b1qrb1q1/1B3nP1/2B4r/RNk1p1B1/1Q1pP1Nn/b5K1/1qB1Q3 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 g5 fxg5 b5 a4 Na6 axb5 Nb8 g4 a5 bxa5 h5 g6 Qb6 g5 Qd8 Ra3 Nh6 Rg3 Ng8 Rg4 hxg4 Kf2 d5 c4 Kd7 h4 Ke6 a6 f5 a7 g3+ Kg2 d3 b6 d2 b7 d4 c5 Kd5 h5 e5 h6 e4 h7 d3 g7 f4 c6 Qb6 c7 Na6 b8B Nb4 g6 Nf6 g8N Kc4 Nc3 Be6 c8Q+ Qc7 Qb7 Nbd5 Qe1 d1Q Na2 Be7 Nb4 Qd2 Rh5 Qc3 Re5 Bf7 Re6 Qa1 Ra6 Qb2 Ra4 f3+ Kh1 f2 Bh3 f1Q Bg4 Nf4 e3 g2+ Kh2 Bd5 Ne2 g1B+ Kh1 Nh3 Ng3 Qb1 Qb6 Qff4 Kg2 Qh6 Qe6 Bh2 Qf7 Qg7 Qe6 Qb6 Bd6 Rd8 a8Q Qc7 Bc5 Rd6 Qd8 Rd7 Nf5 Bhd6 Bb6 Bc5 Ng3 Kb5 Qf7 Ba2 Qb3 Rd5 Ba5 Ba7 Bb6 Rh5 Nh6 Rg8 h8B Rf8 Ng8 Rf7 Qa3 Kc4 Qb2 Qh7 Bg7 Qh8 Bf8 Qg7 Qb3+ Kb5 Qc8 Bc5 Qd8 Rd7 Qb2 Kc4 Be7 Bd6 Qa3 Be5 Bec5 Bd6 Qb2 Be7 Qb3+
4nbNk/6RR/4QP2/1rB2bq1/q1nB1Pp1/Q1B1R2p/K1Q3Rr/b3r3 b - - 0 1 illegal: No possible last move, all moves rejected
q1r1Q1b1/5RQ1/1K2PQQB/1b1r4/k5Nr/1q1p1q2/nPBRp2R/n1B5 b - - 0 1 legal: proof: e4 b5 d4 d5 g4 dxe4 a4 c5 axb5 h5 gxh5 Qd7 Qd3 Qd5 Qd1 Qd8 f4 e5 d5 e3 Nd2 e4 Nb3 Bd6 Nd4 Be5 fxe5 cxd4 Ke2 Kd7 h4 f5 c4 a5 c5 g5 b6 a4 b7 a3 h6 f4 d6 Kc6 h7 Kb5 h5 a2 d7 f3+ Ke1+ e2 Kd2 g4 c6 e3+ Kd3 e1Q h6 f2 c7 g3 Rh3 g2 Ke4+ Qe2 Kd5 Na6 b8B Nc5 Qd3+ Ka4 Kc6 Nf6 Kb6 Qg8 d8R Be6 c8Q Qf3 Qg6 Nb3 Rh2 Ne4 Nh3 g1R Bd3 f1B Bc2 Bb5 Nf2 e2 Ng4 Nc3 Rd6 Bd5 Qce8 Rd1 Rf6 Rd2 Rf7 Rd3 Bd6 Rc8 Bf8 Rd1 Rb1 a1Q Bg7 Qa3 Bf8 Na2 e6 Be4 Bf4 Rd3 Rd1 Bf5 Bc1 Rd2 Bb1 Na1 Bc2+ Qab3 Bg7 Rd3 Rd2 Qf8 Rc7 Qa8 Rd7 Qf6 Rf7 Be4 Bf8 Qf3 Bg7 Rdc3 Bf8 d3 Bg7 R3c5 Bf8 Rg8 h8Q Rd5 Qhf6 Rh8 h7 Bf5 Bh6 Be4 Qgg8 Bg6 Re7 Bf7 Qgg6 Rf8 h8Q Bg8 Qfg7 Rf4 Rf7 Rfc4 Q7f6 Rcd4 Qhg7 Rdc4 Ne3 Rh4 Ng4
2n1QnkQ/B7/P1R4n/1pNRr3/bQP1B3/Rrqq3R/4p1K1/B2q2b1 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 g4 h5 g5 g6 Nd2 Rh7 Ndf3 Rh8 Ne5 Nf6 fxg6 Ng8 Ng4 hxg4 f5 Ra4 Kf2 Ra7 Ke1 Ra8 Kf2 d5 a4 b5 h4 e5 c4 e4 a5 d4 f6 b3 a6 b2 f7+ Ke7 h5 b1N c6 e3+ Kg2 g3 c7 e2 h6 d3 h7 d2 g7 Qd5+ Nf3 Qe4 g6 Nd7 Qe1 d1Q Be3 Nc3 Ba7 Nd5 Ra3 Qed3 Nd4 N5b6 Ne6 Nh6 g8R Qc1 g7 Qcc3 Qf2 Bb7+ Qf3 Be4 Nc5 Re8 c8R Bg6 Rd8 Nc8 Rh3 Bf5 Qf4 Kf6 Qf2 Re5 Qf4 Bd6 f8Q+ Kg6 Qe7 Nf8 Qf2 Bc7 Rd5 Bb6 Qd6+ Kf7 Qe1 Qcd4 Qb4 Q3c3 Qd8 Bc2 Qh4 Ba4 Qg5 Ne6 Re8 Rf8 h8B Qdd3 Qf6+ Kg8 Re7 Rf7 Rc7 Nf8 Rc6 Rd7 Kg1 Rde7 Bg2 R7e6 Be4 g2 Kh2 Re8 Nb7 Be3 Nc5 Rd8 Kg3 g1Q+ Kf3 Qgd1 Kg2 Bg1 Qg5 Kf7 g8Q+ Ke8 Bg7 Rd7 Qh8 Kf7 Qf6+ Ke8 Qf4 Qcb3 Rcd6 Rf5 Qe3 Kf7 Re5 Qd3b1 Bf3 Qb1c2 Rc6 Rd3 Rd5 Rc3 Be5 Qcd3 Qf6+ Kg8 Bd4 Rh5 Qe8 Re5 Be4 Qbc2 Rh2 Qcd2 Rh3 Rb3 Ba1 Q2c3 Qh8+
8/kR2Brp1/2n2q2/1q1R1B1P/bQ4RQ/1n1Nb1r1/1RK1pP2/q2nQ1B1 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 d5 cxd5 b5 a4 f5 exf5 Qd7 Na3 Bb7 Nc2 Qc8 axb5 Ba6 b6 Qd8 b5 Bc8 Nb4 axb4 h4 Kd7 d4 c5 Kd2 e5 f6 b3 h5 c4 f7 b2 b7 Kc7 d6+ Kb6 d5 b1Q d7 g3 d6 g2 Ra2 e4 Qe1 Qf6 d8R Bg4 d7 Bd1 Rh4 Nh6 Nh3 g1Q Nf4 Ba4 Bd3 Ka7 Rg4 Nc6 b8R Nf5 Rb2 Bc5 f8B Ne3 Be7 Nd1 Bc2 Qh1 Nd3 Rf8 Rb6 Rf7 Rbb8 Qa1 b6+ Ka6 b7 Qf1 Bb1 Ka7 Bc2 Bb5 Bb1 c3+ Kc2 e3 Bd2 e2 Bf4 Be3 Bh2 Qh1 Bg1 Qd5 Rf8 Qc5 d8Q Qc4 Qd4+ Qc5 Rfd8 Ba4+ Rb3 Qb6 Rd5 Qc5 Qe4 Qc4 Qh1 Qb5 Qh4 Bb6 Kc1 c2 Rb2 Bc5 Kd2 c1N Bc2 Bd4 Bb1 Nb3+ Kc2 Qa3 Rh8 Qa1 b8Q+ Ka6 Qf4 Be3 Rb8 Ka7 Rb6 Rd8 Qfb4 Rd6 Rb8 Re6 Rb6 Re5 Rb8 Rg5 Rb7+ Ka6 Rf4 Qh6 Ne5 Qc5+ Kd3 Rg3 Rg4 Qb6 Kc4 Qa5 Bf5 Qf6 Kd3 Qb6 Kc2 Qb5 Rb6+ Ka7 Nd3 Qa3 Rb8 Qa1 Rb7+
k1B2B2/2Rp3R/1br4p/q2b3B/PrNQ4/1nB1bR2/Q2nKPq1/n2Q4 b - - 0 1 legal: proof: e4 f5 exf5 c5 g4 a5 d4 h5 dxc5 e6 gxh5 Kf7 b4 axb4 h6 Bd6 h7 Nh6 h4 e5 h5 Rg8 h8B Na6 Nd2 Qg5 Ndf3 Qe7 Nh2 Ng4 h6 Qd8 h7 Nb8 Ke2 Re8 Kf3 Re6 Kg3 Rh6 Kg2 Rh3 Qd2 Re3 Qd1 Nh6 Ng4 Re2 Nf6 Ng4 Ng8 Re1 Nh6+ gxh6 Ba6 Re3 Bf1 Re2 Kf3 Ke7 a4 b5 c4 e4+ Kg2 e3 Kf3 b3 c6 b2 c5 b1Q c7 b4 c6 b3 Bcb2 Na6 Ra3 Nc5 Bhc3 Rc2 h8Q e2 Qhd4 e1B Bb4 Bb7 c8Q Ne3 Qe2 Bc7 B2c3 b2 Qed1 Rb8 Be2 Bd2 f6+ Ke6 f7 Bb6 f8R Nb3 Rf4 Qg8 Rf7 Qg2+ Kf4 Bc1 c7 Bd5 Nf3 Qa1 Qf8 b1N c8B N1d2 Ne5 Qb2 Qg8 Qa2 Bb2 Rc6 B2c3 Nc2 Bh5 Nca1 Ke3 Qc2 Bf8 Qf5 Re7+ Kd6 Nc4+ Kc7 Ke2 Rb7 Rh3 Kb8 Rh7 Ka8 Ra2 Rb8 Rc2 Qe5+ Re3 Qc7 Rd3 Qa7 Rf3 Qa5 Qg3 Bc5 Qg8 Rb4 Qf7 Bb6 Qe7 Rb5 Qa3 Rb4 Qb2 Ne4 Qa3 Be3 Qa2 Ned2 Nb2 Rb5 Bcb4 Rg6 Rc7 Rc6 Bc3 Rb4 Nc4
3QBR2/2pq1B1b/qQ1rP1Q1/p5r1/N3NQ2/3N4/Bn3r1P/1Kb1n1kn b - - 0 1 legal: proof: c4 b5 b4 g5 a4 d5 cxd5 e5 axb5 e4 Ra4 e3 fxe3 Nh6 e4 Ng8 e5 Bg7 Na3 Bh6 Nb1 Bf8 g4 h6 Ra3 Qd7 Rf3 Qe7 Rf4 Qd8 Bb2 Qd6 Bd4 Qd8 Bf2 Ba6 Bh4 gxf4 g5 Bb7 g6 Bc8 Bg5 hxg5 d4 Kd7 Kd2 a5 Kc1 f5 e4 g4 g7 g3 d6 Ke6 b6 g2 b7 f3 d5+ Kf7 d7 Kg6 d6 Kh5 b5 Kg4 b6 f4 e6 Ne7 g8B Nf5 e7 Ng3 e8B Na6 b8Q Nb4 b7 Ra6 e5 Bh6 Nc3 Nd3+ Kb1 Nb2 Nh3 g1N Qc1 f2 Ng5 f3 Bfc4 f1R Ba2 f2 Bgf7 Nf3 Nge4 Kh3 Na4 Ne1 Qf4 Kg2 e6 Rg8 Qa8 Rg5 b8Q Bb7 Qba7 Qc8 d8N Qd7 Qb6 Bd5 Qac6 Bc4 Nb7 Bd3+ Ka1 Bc2 Qc3 Bd3 Nbc5 Bc2 Qcf6 Bd3 Nd2 Bh7 Qg6 Bf8 Qb8 Qc8 d7 Nc4 d8Q Qd7 Qff6 Bd6 Qb4 Bf4 Bg8 Nb2 Kb1 Rd6 Nde4 Bc1 Qbd4 Rg1 Qb4 f1Q Qb6 Qa6 Nd3 Rf1 Qff7 Rf3 Rf1 Nh1 Rf2+ Kg1 Qff6 Rg2 Qh4 Rfg3 Rf8+ Rf2 Qf4 Rg5 Bgf7
nQ4r1/Q1R4n/8/1nB1bnpk/1RN2P1b/1B1r1pBq/K2Q1QP1/R2r4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Na6 h5 Nb8 f4 Bg6 Na3 f5 Nc4 Bh6 Ne5 Bf8 e4 fxe4 Nef3 exf3 hxg6 Qd7 Rh6 Qd6 Rh1 Qd8 b4 h5 d4 a5 Kd2 e5 Kc3 c5 Kb3 a4+ Ka2 e4 g7 Kf7 d6 Kg6 b6 e3 b7 h4 b5 c4 b6 a3 d5 e2 d7 e1B d6 h3 Qb3 h2 Qb2 c3 Be3 c2 Bc4 c1R Qf2 Nf6 g8R+ Kh5 Nh3 Bg7 Bb3 Nh7 Bc5 Na6 b8Q Qc8 d8Q Be5 b7 Rd1 d7 Nc7 Rg7 Rg8 Qa7 Rd3 Rf1 h1N b8Q Ng3 Rb1 Nf5 Rb2 B1c3 Ra1 Be1 Rbb1 Nb5 Qda5 Nc7 d8B Rd1 Bde7 Rgd8 Bb6 R8d3 Qad2 Qd7 Bec5 Qc8 Qf1 Bh4 Nf2 Qe6 Ng4 Qd7 Qh8 Rg8 Ne3 Na8 Qff2 Qc8 Rc7 Qe6 Rc1 Qc8 Nc4 Qd7 Kb1 a2+ Kc2 Bd4 Rab1 Rg7 Qfe2 Rc3+ Kb2 a1N Bc2 Qc8 Ba3 Ne7 Ka2 Qh3 Qhb8 Be5 Bf2 Rd3 Bg3 Nf5 Qef2 Nb3 Bc5 Nbd4 Rb4 Rg8 Ra1 Nb5 Bb3
N4r2/bnQB1n1b/p2R4/1r2P2P/3p4/bQ1Rbnqk/K2NR1R1/3Q1N2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 f5 gxf5 c5 a4 h6 d4 cxd4 Bg5 hxg5 axb5 Ba6 Ra2 Bb7 Ra1 Bc8 Kd2 Ke7 Kc1 d5 h4 a6 e4 g4 c4 g5 b4 d3 Kb2 d4 f6+ Ke6 h5 g3 c5 d2 f7 g2 c6 g4 c7 g3 b6 Qd6 b7 Bd7 c8N Nh6 b5 Bc6 b6 Nd7 b8Q Nc5 Ra3 Nb7 Ne2 g1B Rd3 g2 Rh2 Be3 Ka2 g1B Qc7 Rb8 Rg2 Bh2 Ng3 Be7 f8R Nf7 Rd8 Rf8 Be2 Ba4 Nf1 Bc2 Qc1 d1N Nbd2 Nf2 Qd1 Nh3 Rd7 Nc5 b7 Nhg5 Nb6 Nf3 Na8 Nb3 Rc3 Na5 Bb5 Bg3 Rd3 Bh2 Qc3 Qc7 Rd5 Ba3 Qb3 Qc3 Nc4 Qe1 Ncd2 Qg3 Bc6 Rbc8 b8Q Nb7 Be8 Rc5 Qc7 Rb5 Bd7+ Ke7 e6 Kf6 Rd6 Kg5 e7 Kh4 Re6 Kh3 e8R Qg7 Qb6 Bb8 Qc7 Ba7 Rf6+ Qg4 Ree6 Qg3 e5 Ne1 Rff2 Nf3 Re2 Qg4 Rc3 Bh7 Rd3 Qg3 Rd6+
NKR2b2/3Bp2b/2B3q1/1Q1r2N1/nQ1P2rB/3P1bn1/1knp4/N3QN1b b - - 0 1 legal: proof: e4 b5 a4 d5 axb5 g5 h4 gxh4 b4 c5 Ke2 f5 exf5 d4 Ra2 d3+ cxd3 c4 d4 c3 d3 Ba6 Rc2 Bc8 Rd2 cxd2 Ke3 Kd7 Ke4 Kd6 g4 h5 f4 a5 f6 h3 f7 a4 b6 h4 b5 a3 g5 a2 f5 a1N g6 h2 g7 h3 b7 Na6 b8Q+ Qc7 f6 Rh6 b6 Nb4 b7 Be6 Ba3 Rh8 Qe1 Rh7 Nc3 Ra7 Nd5 Nc2 Nf3 Bg4 Ne3 Bc8 Bg2 Bg4 Ng5 Rh8 Nf1 Nh6 g8B Bg7 f8N Ra8 f7 Kc6 Nfe6 Kb5 f8N Ka4 Nd7 Kb3 Nb6 Nd5 Bd6 Ra5 Bg3 Kb2 Na8 Qc6 Bh4 Nf5 Nc5 Bf8 Nb3 Qg6 Be6 Rg8 Bd7 Nb6 Qe8 Rb5 b8Q Na4 Qd6 Rd5 Qb4 Be2 Qeb8 Bd1 Q8b5 Rg7 Rg1 h1B Bf3 h2 Rg3 Rd6 Ke5 Be2 Bfc6 Be4 Rf3 Ng3 Rf6 Rd5+ Ke6 Qh5 Rh6 h1B Rh8 B2f3 Rg8 Rf7 Rh8 Rf4 Rg8 Bg7 Rc8 Bf8 Be8 Rdf5 Kd7 Rd5+ Kc7 Bh7 Bed7 Qg6 Kb8 Rg4 Na1+
1B3k1B/1qQQ3n/pb2rQ1P/1nP1NR2/nQK3b1/1B6/2b4p/Rq1Rq3 b - - 0 1 illegal: No proof kernel
B1bn4/Q6K/1Bq2p2/2P1n1bQ/Pn1RpQNB/bB4n1/N4r2/1N2nk2 b - - 0 1 legal: proof: e4 d5 d4 c5 dxc5 h5 g4 b5 a4 d4 f4 a5 b4 axb4 f5 g6 Ra3 Ra7 Rg3 Rc7 fxg6 Rb7 g5 Rd7 Rg4 Rd5 exd5 hxg4 Kf2 Kd7 Kg3 e5 h4 e4 Kf4 b3 Kf5 b4 c4 g3 d6 Kc6+ d7 b2 g7 d3 h5 b3 h6 g2 g6 f6 h7 d2 Qc2 d1N Bf4 Qc7 Qd2 Na6 Bg3 Nb4 Qf4 Nf2 Ne2 g1B Nec3 Ng4 Na2 Be3 Bh4 Ne5 Rh3 Bd2 Rd3 Be3 Rd4 Ne7+ Ke6 Bc1 g8N Bh6 g7 Bg5 Nh6 Rd8 Nd2 b1N g8B b2 h8Q Nc3 Nb1 Ne2 Ng4 Ng3 Qh5 Qb6 Bd3 Qb7 Bc2 Qb5 Na3 b1N Bb3 Nd2 Nb1 Ba3 Bf7 Ndf3 Bg8 N5g6 Kf7 Ne1 Kg7 Ne5 Bf7 Rh8 d8B Qa6 Bb6 Rd8 Rd1 Rd2 Kh7 Rf2 Rd5 N7g6 Rd4 Nh8 Be6 Nhf7 Bd5+ Kd7 c6+ Kd6 c7 Nd8 Ba5 Kc5 Bb7 Qc6 Ba8 Be6 c8Q Bd7 Qb8 Be6 Rd2 Bc8 Rc2 Kd4 c5 Kd3 Rc4 Ke2 Bb6 Kf1 Rd4 Ng6 Qbc7 Ne5 Qa7
q2Bb1b1/Q1np4/1NnQR1r1/P6n/4k3/1N1p2n1/Pb3KRN/NnQ3R1 b - - 0 1 legal: proof: d4 a5 g4 c5 f4 cxd4 b4 b5 bxa5 h5 e4 f5 gxf5 Ra7 f6 Rc7 f5 Nh6 e5 Ng8 Be2 Rc3 Bg4 hxg4 Kf1 Qb6 Ke1 Kd8 Nh3 Kc7 Ng1 Rc6 f7 Rf6 exf6 Kc6 Qd3 Qc7 Qd1 Qd8 h4 Kd5 c4+ Ke4 c5 e5 c6 g5 h5 g3 h6 b4 h7 g2 c7 b3 Rh6 b2 Bd2 g4 Bc3 g3 Qc1 Na6 Bd2 Ne7 Bg5 Rg8 h8Q Nc6 Bh4 Ba3 f8R Rg6 f7 Bb7 c8N Nc7 Nf3 g1N f6 g2 Rh7 Ne2 Rg7 g1N Nh2 Nh3 Nb6 Nhf4 Kf2 Qa8 Qh6 Ng3 Nd2+ Kd3 Rgg8 b1B Nb3 e4 Qg1 Nfh5 Qhc1 Bc2 Rb1 Bb2 Na1 Ba6 Rg7 Bc4 Rgg8 Rh6 Rg6 B4b3 Rfg8 Bd5 f8N Bcb3 R8g7 Bf7 Ne6 Be8 f7 Bd5 Rf6 Rg6 f8Q e3+ Ke1 e2 Kf2 e1N Qd6 Nc2 Nc5+ Kc3 Ncb3 Kd3 Rg8 Ke4 Rg7 d3 Bg5 Rh6 Bh4 Bg8 Rg5 Ne2 Rg2 Rg6 Rf5 Nb8 Qcd1 Bc4 Nd5 Re6 Bd8 Bb5 Kf1 Bc4 Qa7 Nc6 Kf2 Na3 Nb6 Rg6 Rf6 Bg8 Qc2 Neg3 Rbg1 Nb1 Qc4+ Nd4 Qc1 Nc6 Re6+
2R2Qrr/1KN5/nNRN3p/b7/1BQrn2p/1Pq2r2/P3RQ2/2kq1rN1 b - - 0 1 legal: proof: e4 g5 h4 gxh4 b3 f5 exf5 b5 Bc4 d5 Bf1 b4 Bd3 a5 Ba6 a4 bxa4 b3 a5 b2 Bc4 dxc4 Qg4 Bd7 Qf3 Ba4 Qd1 Bb3 cxb3 Qc8 Rh2 Qd7 Rh1 Qd8 Ke2 Kd7 Kf3 Kc6 Ke4 Kc5 d4+ Kb4 g4 c5 f4 e5 d5 c3 f6 c2 d6 h6 Kd5 c4 f7 c3 d7 e4 a6 e3 a7 e2 g5 e1Q f5 Qe3 f6 Qc7 d8N Nd7 g6 Qeb6 g7 Nc5 Qe2 Qb5 Nb7 Qbd7+ Nd6 Na6 Nd2 Ka3 Qf2 Qg4 Rb1 Qd1 Rh2 Be7 f8N Bd8 f7 Qc8 Rg2 Ba5 Ne6 Rb8 Nc7 Nf6+ Kc6 Ne4 a8R Rb4 g8Q Rd4 Nf1 Qh3 Be3 c1R f8Q c2 Bd2 Qc3+ Qc4 Rg8 Ra1 b1R Rc8 Kb2 Ne3 Rh8 Ned5 Qh5 Qf1 Qe3 Qce2 Re1 Nf3 c1R+ Kb7 Rc3 Nb6 Qd3 Rf2 Qc4 Qg2 Rg1 Qg3 Rbf1 Rc1 Rg2 Ng1 Qg4 Qed3 Qd1 Re2 Qc5 Qe1 Rgg8 Qef2 Qb4 Qb5 Rf3 Rc6 Qc4 Be1+ Kc1 Bb4 Qc3 Qc4
1KN1BQ2/2P2qk1/4b1r1/4r1BQ/2Pn2B1/np2RRn1/1pn1Q1R1/Rn1q4 b - - 0 1 legal: proof: e4 a5 b4 axb4 d4 f5 exf5 c5 dxc5 Qa5 g3 Qc7 f6 Qd8 f4 h6 f5 e6 Nc3 Bd6 Ne4 Bf4 Ng5 hxg5 gxf4 g4 Kd2 Kf8 Ke3 g5 Ke4 d5+ Ke5 b5 h4 g3 c4 g4 a4 d4 h5 d3 a5 g2 h6 d2 h7 g3 c6 b3 f7 b2 a6 b4 a7 b3 Be2 Kg7 f8R Qe8 Kd6 e5 Kc7 e4 Nf3 g1Q Rh2 g2 Ng5 e3 Ne4 Be6 Nd6 Nf6 Bg4 e2 Nc8 e1N Qe2 d1N Bd2 Qh5 Re8 Rg8 Re7+ Qf7 h8Q+ Kf8 Bc1 Ne3 Qh5 Ne4 f6 N1c2 f5 Na3 Kb7 Rg5 c7 Rg6 Bd2 Nec2 Bg5 Bd7 Re6 Ng3 Re5 Qh1 Re3 g1N+ Rg2 Nf3 Qd1 Qg8 f7 Nc6 Qe2 Kg7 f8R Be6 Rf6 Qh7 Rf8 Qd1 Rf7+ Kh8 f6 N6d4 Rf8+ Bg8 f7 Nd2 Rfe8 Kg7 Rf3 Ndb1 Re6 Qd3 Ree3 Qd1 f8Q+ Kh8 Ne7 Re8 Nc8 Re4 a8B Re5 Qd8 Kg7 Kb8 Bd5 Bc6 Be6 Be8 Qg8 Qe7+ Qf7 Qf8+
r1q2B1Q/2p2Q2/b2N4/2rRKNb1/2R1pnqP/N1R1Pk2/2b3Q1/1b1b3N b - - 0 1 legal: proof: f4 e5 d4 h5 a4 b5 axb5 g6 c4 Qf6 g4 Be7 b4 Qg5 b6 Bf8 b5 Qf6 c5 Qe7 c6 e4 g5 Qd6 Bh3 Qe5 Bg4 hxg4 Ra3 Na6 Ra1 Nc5 dxe5 Nb7 f5 gxf5 cxb7 f4 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 b8R a5 h4 d5 b7 f3 e3 a4 b6 g3 e6 Kg4 g6 f5 e7 f4 e8Q a3 g7 g2 Ne2 g1Q Qd8 f2 Qg5+ Kf3 Qb3 f1B Ng3 a2 Ba3 Nf6 g8N Nh5 Nh6 Be7 Nf7 Bd3 Ke5 d4 Nd6 Bc2 Qf7 d3 Qgg7 Be6 Rd8 d2 b8Q d1B b7 Bg5 Bc5 Beb3 Na3 Bb1 Rd7 Rh7 Qbh8 B3c2 b8N Rh6 Bb4 Rf6 Nc6 Rf5+ Ke6 Rb5 Ne7 Rc5 Rh2 Qg2 Nh1 Qg4+ Nef5 Bd3 Rg2 Bbc2 Rb1 a1Q Rc1 Qb2 Bc3 Qb8 Bb4 Qc8 Rd2 Bb1 Rc4 B3c2 Rdd4 Kg2 Rc3 f3 Qgg8 f2 Rdc4 f1B Qgg7 Kf3 Qgg6 Rc6 Ke5 Nf4 Ndb5 Bcd3 Rd5 B3c2 Bf8 Rc5 Nbd6 Bfd3 Rd4 Ba6 Rdc4 Qh3 Qge6 Qg3 Qed7 Qh3 Qb5 Qg4 Qb2 Ba4 Qd2 Bac2 Qg2+
N1R2Q1q/N3Q3/1qr3B1/2rnR1p1/1P1n1Nnq/3P1kqp/3K2Rb/Q5Q1 b - - 0 1 legal: proof: c4 b5 g4 d5 a4 e5 axb5 g6 g5 e4 cxd5 e3 d3 f6 Bd2 Bg4 Qb3 exd2+ Kd1 Be6 Kc2 Bf7 h4 fxg5 h5 g4 Qa4 g5 Qb3 Bg6 hxg6 Kd7 Kc3 Ba3 Qd1 Bf8 Kc2 Ke8 e4 Ke7 b4 Kf6 f4 a5 b6 h5 b7 c5 e5+ Kf5 d6 g3 g7 g2 e6 a4 d7 c4 e7 a3 e8N a2 Be2 c3 Rh2 h4 Nh3 g1Q Rg2 Qdb6 d8R Nf6 g8Q Nd5 Rc8 Bd6 Na3 Ra6 Nb5 Nc6 b8Q Qgf2 Qc7 Qg3 Qc1 d1N Qgg7 Nf2 Na7 Ng4 Qg1 Nd4+ Kd1 c2+ Kd2 Rf8 Re1 a1Q Qce7 Ra5 Nc7 Rc5 Bd1 Rf6 Na8 Bb8 Qh8 Rfc6 Re4 Nh2 Ree2 Kg4 f5 Kf3 f6 Ng4 Nf4 h3 f7 Qh4 Ng6 Bh2 Nf4 Qh5 f8Q c1Q+ Ke1 Qc4 Kd2 Qh4 Qhf6 Qg3 Re5+ Ne2 Q6g7 Qe4 Ba4 Nd4 Qgf6 Qh7 Q6h8 Qhh4 Qhf6 Rd6 Be8 Rdc6 Bg6 Nf5 Re6 Qd4 Qe5 Qa1 Qee1 Qah8 Qa1 Nd4 Re5
4bK2/1Q2RB1Q/3b1r2/qR1qP1P1/B2q2R1/4r1Nb/3pp1Q1/2Bqk1Bn b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 h4 gxh4 c4 Bg7 a4 Ne7 axb5 Ng8 b6 Bh6 b7 Bf8 e4 f5 e6 Bd6 e5 Ne7 b5 Ng8 Nd2 Nc6 Ne4 Nd4 b6 Nb5 cxb5 fxe4 Ra6 Bc5 Ra1 Bf8 Kd2 Ke7 Ke3 a5 Kf4 h5 Kf5 c5 Kg6 d5 b8Q a4 f4 e3 g4 c4 b7 e2 f5 c3 g5 a3 b6 d4 Qd3 h3 Be3 c2 Bd2 c1Q Qf3 a2 Qf2 d3 Be3 h4 Bg2 h2 Bc6 d2 Qg2 h3 Ba4 Qd4 Qa7 Nf6 Nf3 Nh5 Rg1 h1B Nh4 h2 b8Q+ Qc7 b7 Qa5 Rab1 a1Q Rb5 Ng3 Bf2 Qd1 f6+ Ke8 e7 Kd7 Kf7 Rh6 Kg8 Ke6 e8B Bd6 f7 Rf6 f8B Bd7 Bh5 Be8 Qc7 Rc8 Qh7 Rc3 b8R Rd3 R8b7 Re3 Ng6 Kf5 Ne7+ Kf4 Bf7 Kg4 Nf5 Kf4 Re7 Kg4 Qc6 Bg2 Qab7 Nh1 Ng3 Bh3 Rg2 Kf4 Bg1 Kg4 Ne4+ Kf3 Rg4 Qb3 Kg7 Qbd5 Ng3 Kg2 Nf5+ Kf1 Ng3+ Ke1 Kg8 Q5c4 Qg2 Qcd5 Re6 Bc7 Ba3 Bd6 Re7 Nf2 Kf8 h1Q Bh2 Qf1 Bg1 Nh1 Qa8 Qf5 Qc6 Qc2 Qb7 Qd1 Bc1
b2b3Q/N4kb1/1b1np3/N5NB/3pNq1Q/rRq2Pn1/1Q1R2Pq/1K5R b - - 0 1 illegal: No possible last move
1qr4B/1qQ1qbn1/p6q/5RRP/1QP1B2n/Q2K4/pNr2B2/RnkB4 b - - 0 1 legal: proof: d4 b5 g4 c5 dxc5 h5 e4 f6 f4 e6 a4 bxa4 g5 Nc6 Nd2 Be7 Ndf3 Nb8 Ne5 f5 exf5 Bf6 Ng4 hxg4 gxf6 Ba6 Kf2 Bb7 Ke1 Bc8 Ke2 Kf7 c4 g5 h4 d5 b4 a3 b5 g3 h5 g4 c6 a2 c7 g2 b6 e5 b7 e4 Rb1 g3 Qb3 e3 Qb5 Nh6 Bd2 Be6 c8B Na6 b8Q Nc5 Nf3 g1Q Ba5 g2 Rh2 Qh1 Ba6 g1Q Q5b6 Qg7 Qb4 d4 Bb5 a6 Bc6 Rg8 Ra1 Qd6 Q8b6 Rac8 Ne1 Qb8 Be4 Rgd8 Rg2 d3+ Kf3 d2 Ke2 d1N Qc7+ Rd7 Bb6 Bd5 Ba7 Ne6 Kd3 e2 Bf2 Nc3 Rg5 Nb1 Bh3 Qg6 Bg4 Ng7 Bgf3 Ng4 Qa3 Qh6 Qb4 Nh2 Qa3 Kg8 f7+ Kh7 f8Q Bf7+ Qfd6 Re7 Qdb4 Re5 Bg4 Nf3 f6+ Rf5 Qab2 Nh4 Q2a3 Qg6 Bgf3 Kh6 Bg4 Rb5 f5 Rb7 Qba5 Rb2 Q5b4 Rc2 Bgf3 Bg8 f7 Qc6 f8R Bf7 f6 Qcb7 Ng2 Qc1 Ne3 e1Q Nd1 Qf4 Nb2 Qd6+ Bd5 Qee7 Bd1 Qf4 Be4 Qc1 Rf5 Qg5 Rg8 Qg6 Rf3 Kg5 Rf4 Qh6 Rf3 Be6 f7 Bd5 f8B Bf7 Bc5 Kg4 Rf4+ Kg3 Rf3+ Kg2 Bf2 Kf1 Rf5 Qef6 Qbb3 Qe5 B8c5 Qe7 Bfd4+ Ke1 Qb5 Ne6 Bh8 Ng7 Qba4 Ne6 Rgg5 Ng7 Kd4 Kd2 Q4b4+ Kc1 Kd3 Qe5 Ba7 Qe7 Bf2
2b3n1/KN2r1pr/1Q3QNn/N1q1R2q/3QPRp1/kP3R2/R6n/2B1rn2 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kd3 Kd7 Kd4 Kd6 e4 f1Q h4 a5 b3 a4 h5 c6 f5 a3 h6 a2 f6 f2 f7 Ra7 f8R Rb7 b6 Nf6 h7 Ng8 Rh2 Qe1 Nh3 f1R Nf4 Nf6 Ng6 Nbd7 Na3 Ng8 Rf4 Ndf6 d3 Re7 b7 Qf8 Rb2 Qh4 b8Q+ Rc7 Qd2 Nh6 Qb6 Nfg8 Kc4 Qfe7 d4 Qh5 Kb4 Qf8 Ka5 Re1 Qe3 Rb7 Ka6 Qff5 Rab1 a1N Qc3 Nc2 Nc4+ Kd7 d6 c5 d5 Nd4 Rbf2 Nf3 Rbb2 Nh2 Na5 c4 Qcd4 c3 R2f3 c2 Qf6 Ke8 Qbd4 Re7+ Kb6 Kd8 d7 Qfg5 Ka7 Kc7 d8N Qf5 Bd2 c1N Ndb7 Ne2 Bc1 Ng3 Qfb6+ Kd7 d6 Ngf1 Qf6 Qc5 Qd4 Ke6 d7+ Qd6 d8R Qc6 Rd5 Qd6 Re5+ Kd7 Qbb4 Qd5 Nc4 Kc6 Qd6+ Kb5 Qf6 Kb4 Na5+ Ka3 Qc6 Nf6 Qcb6 Rf8 h8Q Qc5 Qh7 Rh8 Qg8 Rh7 Qgd8 Nfg8 Qf8 Qg5 Qf6 Qh5 Ra2+
R1Nq3k/3bnKp1/1P1R4/r1Q5/2pPN2q/QN1nqRbB/q5R1/4Q1n1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 b3 a5 Ba3 h6 Be7 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 Kf7 h4 c5 d4 a4 e4 a3 b4 g4 h5 a2 e5 c4 f6 Ba6 d6 Bc8 e6+ Ke8 h6 Bd7 h7 Bc8 b6 Qc7 f7+ Kd8 e7+ Kd7 e8N Ke6 d7 Qb7 d8R Bd6 f8R Bc7 b5 Qe4 b7 Na6 b8Q Ne7 b6 Nc5 Qe1 Bd7 Qc8 Qe5 Nh3 g3+ Kg1 f2+ Kg2 Qe2 Rh2 Qe3 Nd6 Nd3 Nd2 Bb8 Nb3 f3+ Kh1 Rg8 h8Q Bc7 Rg2 Bb8 Rb1 a1Q Qc5 Qa2 Nc8 Bf4 Rfe8 Kf7 Ng5+ Kg6 Qh3 Rf8 Nd6 Rf5 Nge4 Rh5 Ra8 Kh7 Nc8 Bb8 Rf8 Bc7 Rf7 Kh8 Rf6 Bb8 Rd6 Bc7 Rg1 g2+ Kh2 Bb8 Kg3 Bc7 Rh1 g1N Rb2 Bb8 Bg2 f1Q Rh2 Bc7 Rf2 Qfe2 Bf1 Qh6 Rhg2 Qee3 Qh1 Rf5 Kg4 Bb8 Qa3 Qh7 Qh5 Ra5+ Qf5 Qg8 Kh5 Qd8 Qfc5 Bc7 Rc2 f2 Rg3 Bb8 Bh3 f1Q Rcg2 Qff4 Rf3 Qh2 Rc6 Bg3 Rd6 Nf5 Kg6 Ne7+ Kf7 Qh1 Bf5 Qh4 Bh3
1nB5/p2Nrk2/1RB3qb/R4bqb/K1b2p2/1P2Q2P/1Q1B3Q/n3R1Rn b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 axb5 f4 d4 cxd4 Na3 h5 Nc4 Na6 Ne3 Rb8 Bh3 Rb6 Bg2 Rf6 Bf1 Rf5 gxf5 Nc7 Ng4 hxg4 Be3 Na6 Bd2 Qe7 Bc1 Qd8 Kd2 d5 c4 g5 Kc2 d3+ Kb3 d2 e4 d4 h3 d3 e6 g3 e5 g4 f6 g2 c5 g3 e7 Qd6 b6 Qc7 c6 Bh6 b7 Qa5 b8R Qc5 c7 Nb4 Qc2 d1B Bd2 Rh7 Ra5 Be2 Nf3 g1N Bg2 Kf7 e8R Ne7 Ka4 Bf5 c8B Nec6 Rb6 Nb8 b3 Qe7 Qb2 Nc2 Qa2 Na1 e6+ Kg6 f7 Qg5 f8Q Re7 Qb2 Bf1 Qfh8 Ne2 Bc1 d2 Rg1 d1B Bd2 Bb1 Qhd4 Bf5 Ne5+ Kf6 Bf3 g2 Qe3 Ng3 Bc6 Nh1 Nd7+ Kg6 Qf2 Bh5 Qg3 Bc4 Qh2 Rg7 e7 Kf7 Re1 g1Q Rd8 Kg6 e8Q+ Rf7 Qe3 Re7 Rg8+ Kf7 Rg6 Q1g4 Rd6 Qg6 Rd3 Qh4 Rc3 Qhg5 Rcc1 Bcd3 Rg1 Bc4 Rce1
1n2Q3/n3BBN1/3b3r/b5K1/1kQ3P1/pp1BNB2/1Prn1RnQ/3N1br1 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 e4 b5 a4 b4 Ra3 Qd7 Re3 Qb5 axb5 fxe3 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 g4 a5 d4+ Kd6 g6 h5 b6 f5 b7 c5 g7 c4 Kg5 c3 Bd3 e2 Rh2 e1B Rf2 b3 Nh3 c2 Nd2 a4 Nf1 a3 Qe2 f4 Ne3 Ne7 g8B f3 Bf7 h4 Bd2 Ra5 Bb4+ Rc5 Qf1 c1N e5+ Kd7 e6+ Kd6 Qe2 Nec6 e7 Rh6 e8B Na7 Bc6 Bf5 Qc2 Ne2 Qc3 Nf4 Qc4 Kc7 d6+ Kb6 d5 Ng2 d7 Bd6 d8N Bg6 Qc1 Rc2 Ne6 Bh7 Bc5+ Ka5 Ng7 Bf5 Bb6+ Kb4 Bd8 Bh7 Be7 Bd2 Re2 Bg6 Nf2 h3 Nd1 h2 Rf2 h1R Bdb5 Bc5 d6 Rg1 d7 Bd3 d8Q Bd6 Qe8 Bf1 Bd3 Be1 Rd2 f2 Bf3 Be2 Bh7 Bc4 Bd3 f1N Rf2 Nd2 Bdg6 Na6 b8Q+ Bb5 Qc7 Bf1 Bd3 Nb8 Nef5 Nc4 Qf4 Bc3 Qh2 Nd2 Nfe3 Bd4 Qcd7 Bb6 Qc6 Ba5 Qc4+
b2r2Q1/1nn1B2b/2B1Q1Q1/3RP3/N2prb2/k7/1pK1QbRP/1r1R1rB1 b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 dxc5 e5 fxe5 Bd6 g4 Bf8 Kd2 f5 Ke1 f4 Nc3 Qf6 Ne4 Qf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kd2 Ke7 a4 b5 c4 d5 e4 g5 a5 b3 a6 d4 a7 b2 e6 b1B c6 Kd6 f6 Kc5 e5 Kb4 f7 f3 c7 f2 e7 g3 e8Q g4 c5 g2 c6 g3 Qe6 Bb7 c8R Rh4 c7 Nf6 Re8 Bh7 c8Q Nfd7 Rd8 Na6 Qcc6 Ndc5 Qe2 Nc7 Ra2 Re4 Kc2 Bh6 f8B Bf4 Rd5 Rd8 Be3 Ba8 Rb2+ Ka4 Be7 Ka3 Qg6 b4 Qd7 Bc6 Qde6 Nb7 a8Q+ Na5 Nf3 g1R Nd2 g2 Nb3 Bb7 Qb8 Ba8 Nc5 Nb7 Na4 Bg8 Q2g4 Bh7 Bb5 Rb1 Rd1 f1R Bc6 g1B Qe2 Bf2 Qbc8 Rd7 Qcg8 Rd6 Kd3 b3 Rbd2 b2 Kc2 Be1 Bg1 Bf2 Qa6 Be1 Rg2 Bf2 Bh4 Rd7 Qe2 Rd8 Be7+
R1r2B2/n5R1/2r1QQ2/2nBn2N/qq1Qn1B1/1pqp1rPR/3P4/1k1KR3 b - - 0 1 legal: proof: f4 c5 a4 b5 b4 e5 g4 exf4 Nc3 Ba6 Na2 Qa5 axb5 Qd8 b6 Bb7 b5 Bc8 Nb4 cxb4 Kf2 g5 Ba3 f5 Nh3 f3 Rc1 Bd6 Rg1 Bb7 Rh1 Be4 Ra1 Bf4 Ke1 Bg3+ Nf2 f4 Bc1 Bf5 gxf5 g4 Ra5 Bh4 Ra1 g3 Nh3 g2+ Nf2 Bg3 hxg3 Qh4 Nh3 Qg5 Ng1 Qd8 e4 Ke7 c4 Kf6 b7 Ke5 c5 Kd4 f6 a5 f7 h5 f8Q d5 c6 f2+ Ke2 h4 b6 h3 c7 h2 c8R a4 e5 b3 e6 a3 e7 a2 e8B Nf6 Rc5 Qe7+ Kf3 Nfd7 Rc6 Ra6 Rb1 a1Q Bc4 f1Q+ Kg4 f3 Qe1 f2 Kf3 Nc5 Qe6 Qa4 Rc7 Nc6 b8Q Na7 b7 Rc6 Ba3 Qc1 Ke2 f1R Bh5 Qc3 Qbd8 Rf3 Nh3 g1N+ Kd1 Rg8 Qfh6 Rgf8 Qdd6 Rc8 b8R Qh4 Qef6+ Ke4 Rd7 d4 Bd5+ Kd3 Rg7 Qf4 Bg4 Qab4 Ke1 Kc2 Ra8 d3 Qde6 Qfe4+ Qe3 Qa4 Nf4 Qeb4 Rb2+ Kc1 Rc2+ Kb1 Qed4 Rf2 Nh5 Nf3+ Kd1 Ne5 Re1 h1N Rc1+ Ka2 Re2 Rf3 Rh2 Nf2+ Ke1 Nfe4 Rh3 Qcc4 Kd1 Qbc3 Rc2+ Kb1 Ra2 Na6 Bf8 Qab4 Ra5 Nac5 Rb5 Qa4 Rbb7 Qcb5 Rbe7 Qbb4 Qg1 Ned7 Qef7 Nd6 Re1 Ne5 Q7e6 Nde4 Qd4
2rk3B/2pRRB2/Q1QR1p2/2P4K/1Bqq3Q/r2qr2P/2rN4/1qB2n1b b - - 0 1 illegal: No possible last move
4k3/Nr1p3B/q2B3K/2pQbQQN/n2RP1P1/5Q2/pn1N2rr/bn2B3 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 c4 Ba3 h4 gxh4 b6 Bf8 b4 Nh6 b5 Ba6 b7 Ng8 b6 Bb5 cxb5 f5 e4 f4 Ra3 Qf6 Rah3 Qd8 Re3 fxe3 Ke2 c5 Kf3 h5 Kf4 a5 g4 e2 e6 e1B e7 h3 Kg5 h4 f4 h2 f5 h3 f6 a4 Ne2 a3 Nd2 a2 Nf4 Ra7 Nh5 Nc6 b8Q Ne5 b7 Bg3 b6 Nd3 Qf4 Rh7 b8B Rb7 Qf5 Bg7 Bd6 Nb2 Bc4 Be5 Qdf3 Qc8 Rd1 h1N Be6 Bd4 Qd5 h2 Bf5 Na4 Ba3 Be5 Bb4 Rh6 Bh7 Nf2 Ba5 h1R Bb4 Ra7 b7 Rh2 b8N Rb7 Nc6 Rg2 Na7 Nd3 Nb3 Bc3 Qe5 Kf7 Ng3 Ba1 Be1 Rhh2 Nh5 Ndb2 Rd4 Rb5 Nd2 Qa6 Qef4 Rb7 Q4e3 Ke6 e8Q+ Ne7 f7 Be5 Qg8 Nd5 Kh6 Ndc3 Qeg5 Nb1 Qa8 Rc7 Qc6 Rb7 f8Q Rg1 Q8f4 Rgg2 Bf5+ Kf7 Bh7+ Ke8 Qd5 Qb6 Qff6 Qa6 Q6f5
1nrq4/N1pq2B1/N4k2/3Qr2n/B1P3p1/PNpQB3/1Rn1B3/1Q1b1Kb1 b - - 0 1 legal: proof: e4 e5 b4 h5 g4 f5 exf5 a5 gxh5 axb4 d4 e4 c4 e3 a3 e2 Ra2 Qh4 Rc2 Qd8 Kd2 e1N Rc3 Nd3 Ke2 Ne5 dxe5 bxc3 Ke1 Qf6 Qa4 Qe7 Qd1 Qd8 f4 Ke7 h4 b5 e6 g5 h6 d5 h5 b4 h7 g4 f6+ Kd6 h6 b3 f7 Ke7 f5 b2 f6+ Kd6 e7 Ke6 e8B d4 Ba4 d3 Ne2 Ra7 Nd2 b1N Nd4+ Ke5 Rh2 Ne7 Nb5 Ra6 Nb3 Ra8 Be3 Ra5 Na7 Ng8 Rb2 Bf5 Be2 d2+ Kf1 Bc5 f8B Bc2 f7 Nf6 Bg7 Rg8 Qe1 d1Q f8N Q1d7 h8Q Bd1 h7 Rb5 Ne6 Nd2+ Kf2 Re8 Qg8 Nf3 h8Q Nd4 Kf1 Nc2 Qh3 Kf5 Qhg3 Nh5 Qd6 Bb6 Nec5 Rf8 Na6 Re5 Qgd5 Rh8 Bg5 Bg1 Be3 Rg8 Qg2 Rh8 Qd3+ Ke6 Qgd5+ Ke7 Bf8+ Kf6 Bfh6 Rf8 Bg7+ Ke7+ Qf3 Q8e8 Qed2 Rh8 Qfd5 Qg8 Bgh6 Kf6 Qc1 Qge8 Qa1 Qee7 Qb1 Rc8 Bf8 Qed8 Bg7+
1Q1B2Qb/Np3n1b/4rpB1/P1r2q1P/B1qk2pQ/2RnR1bR/6K1/1B6 b - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 f4 e5 fxe5 h4 Na3 h3 b4 axb4 gxh3 bxa3 h4 Be6 h5 Bc8 Kf2 Kd7 d4 c5 e4 g5 h4 g4 d6 Ke6 h6 c4 h7 a2 d5+ Kd7 h5 c3 a5 c2 e6+ Ke8 e5 Qb6+ Kg2 Nh6 d7+ Ke7 d8R Qb5 Ne2 Ra6 Rh3 Rc6 Qe1 Rb6 Nd4 Qc4 Bd3 Ng8 Nb5 Nc6 Na7 Bd7 Rc8 Nb4 Qh4+ f6 Be3 c1B Bb1 Nh6 Rc5 Rg8 h8Q Rg5 Qg8 Nf7 Bf4 Nd3 d6+ Ke8 e7 Bf5 Bh2 Kd7 e8B+ Ke6 d7 Bf4 d8Q Bh7 Ba4 Bg3 Qb8 Bg7 Rc6+ Kd5 e6 Kd4 e7 Rc5 e8B Bh8 Re6 Nd8 Bg6 Nf7 Re2 Re6 Re3 Be1 Bc7 Bf2 Bbc2 Bg3 Rc1 a1Q Bb1 Qac3 Bd8 Qc2+ Kh1 Qf2 Rc3 Qf5 Kg2
Bq3N2/rnrn4/2knnPp1/1Q1R1Q2/4NP1N/2N3pb/B1b3pB/3Q2K1 b - - 0 1 legal: proof: f4 b5 d4 f5 a4 h5 axb5 c5 dxc5 e6 g4 fxg4 b4 Bd6 e3 Bc7 f5 Bf4 exf4 h4 Ra3 Ne7 Rc3 Ng8 Rg3 hxg3 c4 d5 h4 Kd7 b6 a5 c6+ Kd6 h5 e5 b5 g6 c5+ Ke7 c7 Kd7 f6 a4 h6 d4 b7 d3 c6+ Kd6 h7 a3 b6 e4 Bg2 d2+ Kf1 e3 Rh5 a2 Nf3 a1N Nh4 e2+ Kg1 e1N Nc3 Be6 c8Q Ne7 c7 Nd7 b8Q Nec2 b7 Ra7 Rd5+ Kc6 Bb2 Rf8 h8N Nb3 Nf7 Nf5 Ng5 Nbc5 Nge4 Rf7 Bf3 g2 Ba3 Na4 Bc5 Nd6 Bf2 Qe8 Bg3 Nd4 Bh2 g3 Re5 Ndc5 Rd5 Bh3 Qf5 Nb6 c8B Rc7 Be6 Nbd7 Bf7 Qh8 Qe8 Nde6 b8N+ Kb6 Bg8 Ncb7 Bf7 Ndc5 Nd7+ Kc6 Nf8+ Nd7 Qe2 d1B Qe1 Ba4 Qd1 Bc2 Qb8 Nbd8 Qb3 N8b7 Qb2 Rc8 Qb5+ Kc7 Rd4 Ng5 Nc5 Na5 Ba8 Nab7 Ba2 Ne6 Nh7 Qd8 Nf8 Qe8 Qbd3 Kc6 N5e4 Rc7 Rd5 Qb8 Qb5+
2bRN1n1/1qQ3N1/2R1R1q1/3kpQ2/3bqBNp/K1Qp4/P2Qn1rP/2n5 b - - 0 1 legal: proof: c4 a5 d4 b5 d5 d6 cxb5 e5 dxe6 Ke7 b4 axb4 Qa4 Kf6 e7 Ke5 e8N Kd4 Qd1+ Kc5 f4 Bb7 e4 Ra3 g4 Nc6 f5 Rf3 f6 Kb6 e5 Nb8 e6 Bc8 e7 Rf2 Bc4 Rf5 gxf5 Kc5 Be6 fxe6 Kd2 h5 Kc2 g5 Kb2 e5 f7 h4 b6 d5 b7 g4 f6 b3 Nd2 g3 Nc4 g2 Nh3 g1Q Qd2 d4 Ng7 Nc6 b8Q Qd7 e8R Qg6 Ka3 b2 Nd6 b1Q Rd1 Qbe4 Nf2 Kd5 Ng4 Rh5 Re7 Rg5 Re6 Be7 f8Q d3 f7 Bd8 Rf1 Nd4 Qbb4 c5 Qe7 c4 f8Q c3 Qf5 c2 Qbc3 Qb7 Qec7 Be7 Rb1 Bd8 Rb6 Ne2 Rc6 Be7 Qd1 Bd8 Bf4 c1N Qdd2 Be7 Nf2 Rg2 Ng4 Nb3 Rb1 Nbc1 Rbb6 Bd8 Ra6 Bg5 Ra8 Bh6 Bg3 Be3 Bf4 Bd4 Rb8 Bd7 Rd8 Bc8 Nde8+
1B5Q/1b1Q3q/2qp1b1p/Pb1p3q/k3n3/1P2NB1n/3r2NQ/1QRBKN2 b - - 0 1 illegal: No possible last move, all moves rejected
RQrb2K1/1Qb5/bp1N3k/q4P2/R2Np1R1/2P1Q2p/N1q1r1n1/1BqN4 b - - 0 1 legal: proof: e4 d5 h4 c5 d4 g5 hxg5 a5 b4 f6 Bf4 Na6 Bc7 axb4 Be5 fxe5 dxc5 d4 Qe2 Nc7 Qd1 Nd5 exd5 Bg7 Qd2 Bh6 Qd1 Bf8 Ke2 Kf7 Kf3 Kg7 Ke4 h5 f4 e6 g4 b6 a4 b3 d6 h4 c6 d3 c7 d2 f5 b2 g6 h3 d7 Qe7 d8N Qc5 a5 Kh6 g7 Bd6 a6 Bb7+ Nc6 Rf8 c8N Kh7 g5 Qb5 g6+ Kh6 a7 Ba8 Qf3 d1Q Nc3 b1Q Na2 Ba3 Nd6 Bb7 a8R Qdc1 Ne2 Qa5 Rg1 Ne7 g8Q Nd5 g7 Ne3 Qf7 Rc8 g8Q Ng2 Nec3 Ba6 Bd3 Qb3 Qgg3 Rhe8 Nd1 Bc5 c3 Qbc2 Qd7 Be3 Qf7 Bg5 Qb7 Bd8 Qff2 Re7 Qc5 Re8 Nd4 Re7 Qcc7 Re8 Qcb8 Bc7 Kf3 e4+ Kg4 e3 Qgf3 e2 Qe3+ Nf4 Kh4 e1B+ Rg3 Bd2 Rg4 e5 Be4 Kh7 Kg5 Ng2 Kf6 Re7 Qf2 Kh6 Qg3 Re6+ Kf7 Bg5 Bd3 Bgd8 Kg8 e4 Qf2 Re5 Qe2 Rb5 Qf3 Rb2 Qg3 Qf2 Bb1 Re2 Qe3+ Qf4 Nb4 Qb2 Ra4 Qc2 Qg1 Qfd2 Na2 Qdc1 Qe3+
1kRqB1N1/1N2P1r1/q3N1Q1/p1RP1K2/RnQr3p/1b3bb1/1p4Q1/R4q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 bxc5 exf4 a3 b4 a4 Na6 c4 d6 c6 Qe7 c7 Qd8 c5 Nb8 Bb2 Nc6 Bd4 Bg4 Bf2 Nd4 c6 Nb5 axb5 Bc8 Bc5 dxc5 Kf2 f5 Kf3 a5 e4 h5 g4 c4 d4 b3 d5 b2 b6 h4 e5 c3 b7 c2 b8Q c1Q e6 Qc4 g6 Qc1 g5 Ba6 c8R Qc5 c7 Bc4 g7 Qb5 g6 Ne7 g8N Rh7 g7 Nc6 Qe2 Bd6 e7 Kd7 Nh3 Qa6 Qg2 Nb4 Nc3 Bb3 Ra4 Ra7 Qb6 Rb7 Qc5 Rb6 Bb5+ Rc6 Kf2 f3 Ke3 f4+ Ke4 f2 Rha1 f1Q Kf5 f3 Nf4 f2 Ne6 Bg3 Qd4 Kd6 Ne4+ Kd7 N4c5+ Kd6 Nd7 Rc4 Qc3 Rd4 Qc4 Qe1 Ndc5 f1B Be8 Be2 Nf6 Qd1 g8Q Bf3 Qg6 Rg7 Ng8 Qg1 Rb8 Qf1 c8R Qc6 Bf7 Qa6 Nb7+ Kd7 Rc5 Qdb6 Re8 Qd8 Nc7 Kc8 Ne6+ Kb8 Rf8 Qh1 Be8 Qf1 Bd7 Qc8 Rd8 Bf4 Be8 Bg3 Rd7 Qd8 Rdc7 Qh1 R7c6 Qf1 Rc8+
rqB4k/Q2NN2n/K1bB2Bp/3bN3/QRpnB2p/b1P5/QP1n2n1/8 b - - 0 1 legal: proof: d4 a5 h4 e5 g4 g5 e4 b5 a4 f5 axb5 Ra6 Ra4 Rg6 dxe5 Bb7 h5 Na6 hxg6 Bc8 g7 Bd6 Ra1 fxe4 Rh4 gxh4 g5 Bf8 g6 Qg5 Ra3 Qd8 Rh3 Nb8 Rh2 Nc6 Rh1 Nb8 Kd2 c5 Kc3 d5 f4 e3 f5 d4+ Kc4 a4 f6 e2 b6 e1N Kb5 a3 e6 h6 f7+ Ke7 b7 Kf6 e7 d3 e8B d2 Bg2 a2 Rh3 a1N Be4 Nf3 Nc3 Nd7 b8Q Ne7 g8Q Ne1 g7 Nc6 Nf3 Ng2 Qa7 Qc7 Ne5 Bb7 Re3 Ba8 Ka6 Qb8 Rh3 Be7 f8N Nb3 B8g6 Ncd4 Rg3 Bd5 Rg4 Bc6 Qc4 Bd6 g8B Kg7 Be6 Rg8 Be6f5 Kh8 Nd5 Nf6 c3 Nh7 Bc8 Be7 Qc2 d1B Nfd7 Bf3 Bf4 Nd2 Qa2 Bd6 Ne7 c4 Rg5 Ba3 Qa4 Bg4 Bg3 Be6 Rf5 Bed5 Rf6 Ba8 Rb6 Bac6 Rb4 Qc7 Bb7 Ra8 Bc8 Qb8 Nf3 Ng5 Bd6 Nh7 Nfe5
1RN2nb1/r3Bp1R/k1r1p2Q/2bBP1Rb/6p1/1rq3B1/K1P5/B1rQ1Q2 b - - 0 1 legal: proof: g4 b5 d4 c5 b4 cxd4 a4 h5 axb5 a5 f4 g6 f5 a4 Nc3 Nc6 Ne4 Na5 bxa5 Qc7 Nf2 Qb6 fxg6 Qc7 g5 Qd8 Ng4 hxg4 Qd2 d5 Kd1 Kd7 h4 Kc7 e4 Kb7 a6+ Kb6 g7 e6 h5 d3 h6 d4 h7 a3 g6 a2 a7 Qc7 Nh3 Bb7 Ng5 Bd5 Rb1 a1R Ba3 Bd6 Kc1 Bc6 Kb2 Bd5 Bg2 Rb8 a8Q Nf6 g8Q Bb4 g7 Nd7 Qd8 Re8 g8R Nf8 Qf4 d2 h8B d1R Qf1 Rc1 Rh7 Bb7 Qd7 Rec8 Bf6 Bd5 Qac6+ Ka5 b6 Qe5 Qc3 Rc6 b7 Qg3 Qd2 d3 Rh1 Bc4 Qe3 d2 Rh7 Bb5 Kb3 Ra2 Ba1 Bd3 Bf3 Be7 Bd6 Ra4 Ba3 Qe1 Ka2 Bb4 Rb3 Kb5 Qf4 Ra7 Qd5+ Ka6 Qd8 Bc3 Be7 Qe3 Qf6 Bb4 Qg6 Qc5 Qh6 Qc3 Rgg7 Bc5 Rb1 Rbc8 b8B Rb6 Be5 Rcc6 Bg3 Rbb7 e5 d1B Ne4 B1e2 Rg5 Rb4 Nd6 Bg6 Rh8 Bh5 Nc8 Bd3 Qd4 Rb5 Bd5 Bh7 Qdd1 Bg8 Rb4 Rd7 Rh7 Ra7 Rc4 Rb3 Rb4+ Qc4 Rb5 Qc3 Rb8+
1krr1N2/p3p2Q/Qq3R2/1Q3pKB/rbP3R1/4NRR1/n3P1nN/1r2n3 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 d6 d4 cxd4 b6 Na6 Qd2 Be6 Qd1 Rc8 g4 h6 g6 Nb4 g5 Rc3 g7 Na6 b7 Qb8 g6 Rc5 Bg5 Qd8 b8Q Bd5 Qc8 Ba8 Qxa8 hxg5 Kd2 Kd7 b4 Kc7 c4 f5 h4 d3 Ke3 d5 b5 g4 Kf4 d2 b6+ Kd7 b7 Kc7 b8Q+ Kd7 h5 g3 h6 d4 h7 d3 Nf3 g2 Qa4+ Rc6 Nh2 d1R Nd2 g1N Bg2 Nh6 g8R Ng4 Qbb5 Kc7 Ndf1 d2 Bf3 Rb1 Ne3 d1R Kg5 Bg7 Ra3 Bc3 g7 Nb4 Qaa6 Na2 Rf8 Rc5 g8R Bb4 Rf6 Qd6 Rg7 Rc8 h8N Qb6 Ng6 Rdd8 Nf8 Rcd5 Qac6+ Kb8 Qe8 Rdd1 Qh5 Ra1 Qh7 Rdb1 Nc2 Ne3 Bh5 Ng2 Rg3 Rd5 Ne3 Rdd8 Kh6 Nf3 R7g4 Nfe1 Rf1 Nc1 Rff3 Ra4 Kg6 Na2 Kg5
2Q4N/pRP1NN2/pR2qB2/1P3r1k/1n1Q1QRn/KN6/1p1nrr2/1r4b1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 c5 g4 c4 gxh5 Qb6 a5 Qd8 a6 bxa6 b4 Nc6 Bg2 Nb8 Bc6 Qc7 Ba4 Qd8 Bb3 cxb3 c4 Bb7 d3 Bd5 c5 Bc4 dxc4 Qb6 Ne2 Qa5 Ng1 Qd8 Kd2 Kf7 Kc3 d5 Kb2 g5 h4 e5 f4 d4 b5 g4 c6 d3 f6 e4 h6 Kg6 f5+ Kh5 h7 d2 f7 e3 f6 e2 c5 e1N c7 Nc2 c8Q Ne3 c6 Qd3 c7 Qf5 Nh3 Nc2 Ng5 Qd5 Ra4 Bc5 f8R Bg1 f7 Na1 Ka3 Nc6 Bb2 Qe6 Bf6 b2 Re8 Rb8 f8Q Nb3 Nf7 Nb4 Qd6 Nh6 Qf4 Rf8 h8N Rb6 Ng6 Nf5 Ne7 Rd6 Rh3 Rd5 Rc3 Re5 Rc6 Re2 Rb6 g3 Rb7 g2 Rd8 Bh2 Rd6 g1R Rdb6 Rg2 Qg1 d1R Qgd4 Rgf2 Nd2 Nc5 Nb3 Rb1 Qc1 Ne4 Qcc4 Kg4 h5 Nh4 h6 Kh5 h7 Bg1 h8N Nd2 Qf4 Rd8 Qcd4 Rd5 Qg3 Rdf5 Qgf4 Nd3 Rc4 Nb4 Rc3 Qc6 Rg3 Qe6 Rg4
2Q1Q2K/1pN1NB2/p1b2B1Q/1r2qqR1/N2b4/r4B1p/kPPQ4/2b2bn1 b - - 0 1 legal: proof: e4 f5 exf5 c5 f4 g5 d4 Kf7 dxc5 Nf6 Be3 Ng8 f6 Ke8 f5 Qc7 Na3 Qa5+ Kf2 Qa4 Ke2 Qc4+ Ke1 Qxa2 h4 Bh6 g4 Bg7 h5 Bh6 Qe2 Nc6 Rd1 Bf8 Rd4 Ne5 Rf4 gxf4 g5 Ng6 hxg6 Qe6 Qd2 Qb3 Qe2 Qa2 Kd2 d5 Kc3 Kd7 Kd4 Kc6 Ke5 h5 f7 h4 f6 d4 g7 h3 g6 d3 Bg2+ f3 Bf2 d2 Qd1 Nh6 g8B Qd5+ Kf4 e5+ Kg5 e4+ Kf4 e3 g7 e2 Be3 e1B Rh2 f2 Bf3 f1B Bf2 Ng4 Bd4 Bd7 Ne2 Rh5 Nc3 Ne5 Na4 Bf2 Nb5 Be8 Bc3 Bd4 Rg2 Bd6 Qc1 d1Q f8Q Qd3 f7 Qh7 Rg5 Qf5+ Kg3 Qde4 Qd2 Kd5 c6 Kc4 c7 Bc6 c8Q Bb8 Bh1 Nf3+ Nc7 Ng1 Qfe8 Qed5 f8Q Qe5+ Qff4 Qf5 Ne6 Qde5 Bf7 Bc7 g8N Bb6 Be4 Be3 Ne7 Bbd4 Qe1 Bc1 Bf3 a6 Qcd7 Rd8 Qc8 Rd5 Qd2 Ra5 Rg4 Rg5 Kh4 Rb5 Rg2 Rg8 Qh6 Rg3 Bd1 Rd3 Rg5 Re3 Kh5 Rg3 Ba5 Rgb3 Bd8 Ra3 Ng8 Kd5 Bf6 Ke4 Be2 Kd5 Nc7+ Ke4 Qe1 Kf4 Ne7 Ke3 Qf2+ Kd2 Qh2 Qg4+ Kg6 Qgf5+ Kg7 Nf3 Qh4 Ng1 Bd3+ Kd1 Kg8 Bce3 Be2+ Kc1 Bf3 Kb1 Kh8 Bc1 Qh6 Ka1 Qd2 Kb1 Bg6 Ka2 Bf7+
b1R3n1/3kb3/RP3Qn1/4pQ2/3nr1p1/2B2nBR/PKN3pb/1BQ2r1Q b - - 0 1 legal: proof: e4 d5 g4 b5 b4 h5 Na3 hxg4 Nc4 f5 exf5 a5 bxa5 b4 Na3 Qd7 c4 Qb5 cxb5 Bd7 Nc4 dxc4 Be2 Be6 Bf1 Bc8 d4 c5 Kd2 g5 Kc2 e5 h4 g3 f4 g4 d5 b3+ Kb2 g2 h5 Be7 a6 Bd6 f6 Nc6 f7+ Kd8 f8B Rb8 h6 Na7 f5 Nf6 h7 Bb7 Bf4 Kd7 Rc1 Nc6 a7 Ne7 a8R Ng6 Rh3 Be7 d6 Ng8 Ra6 Ba8 f6 Rc8 f7 c3+ Ka3 c4 b6 c2 Ne2 b2 Bg3 b1N+ Kb2 Rc7 Nd4 Nd2 Bd3 Nf3 Bh6 Rc5 f8Q Ra5 Bd2 c3+ Ka1 Ra4 Qf5+ Kd8 d7 Rb4 Rb1 c1B Nc2 Re4 Bde1 Be3 Qc1 Bg1 Rb4 Bh2 Rc4 Nh6 Bd2 Rf8 h8Q Ng8 Qh6 Rf6 Qh1 Rf7 Bde1 Rf6 Qc1 Rf8 Na3 c2 Bc3 Rf6 Kb2 Rf7 Qcf4 c1N Nc2 Nb3 Qfc1 Nbd4 Rc6 Bf8 Rc8+ Ke7 Re8+ Kd6 d8Q+ Kc6 Qdg5 Be7 Rc8+ Kd6 Nb4 Rf6 Bb1 Rf8 Qff6+ Kd7 Nc2 Ng1 Qg7 Rf1 Q7f6 Ngf3 Qgf5+
1BK1Q2q/1r4p1/kp1bN1B1/BR2pQ2/rnRr1P2/Q6r/2q1P1QR/6r1 b - - 0 1 legal: proof: c4 h5 b4 d5 cxd5 a5 g3 axb4 Na3 h4 Nc2 h3 Ne3 Kd7 Ng2 Ke8 f4 hxg2 f5 e5 Qb3 f6 Qd1 Be6 fxe6 f5 Qa4+ Nc6 Qc2 f4 Qd1 f3 Qb3 Nce7 Qc2 Ng6 Qd1 Nf4 gxf4 Rb8 Kf2 Rc8 Ke1 Ra8 Kf2 c5 Ke3 b6 Ke4 b3 Kf5 f2 h4 c4 a4 b2 d4 b1R a5 c3 a6 c2 d6 Qe7 h5 Kd8 d7 Kc7 d8B+ Kc8 a7 Kb7 h6 Rb5 d5 Rb8 a8Q+ Kc8 d6 Rb4 h7 Qd7 Bc7 Be7 Qdd5 Qd8 Ra5 Qe8 Rh2 Rd4 Nh3 g1Q Ng5 Qb5 Qg2 Rd3 Bd2 Qc4 Rb5 c1R Ba5 Bf8 e7 Rh3 Ne6 Nf6 Qa7 Rg8 h8Q Ra1 Qh7 Rb7 Bb8 Nd5 Qa6 Qc7 e8Q+ Qd8 Qhh5 Ra4 Qhg6 Nb4 Qa8 Rd7 Qaf3 Rgh8 Qa3 Rd3 Qf6 Rhh3 Qfg5 Re7 Qf6 Rd5 d7+ Kb7 Qfg6 Qc7 d8R Ka6 Rc8 Rd4 Qh7 Qc3 Rc4 Qh1 Qa8+ Ra7 Rg2 Rh6 Nd8 Rh5+ Ke6 Qh4 Rh2 Bc5 Bg2 f1R Be4 Bd6 Bb1 Qd2 Qg2 Rb7 Qhg6 Qd1 Q6g4 Rh1 Bg6 Rg1 Qf5 Qc2 Qc1 Qh3 Qa3 Bc7 Ke7 Rh4 Ne6 Bd6+ Kd8 Rh8 Kc8 Qh7 Qgg4 Qg8 Nf8 Rh3 Ne6 Qh8 Qg2
bb1qR3/Q3n3/K2pRPRb/1B1N2b1/5Q2/6BQ/QppP2qr/kB1b4 b - - 0 1 legal: proof: e4 b5 g4 f5 exf5 a5 c4 b4 Qb3 Ra7 Qd1 Rb7 b3 Rb5 cxb5 a4 Ba3 axb3 Bb2 Nc6 Bc1 Nb8 f6 h6 f4 Kf7 g5 Ke6 g6 Nc6 f5+ Kd6 Nc3 Ne5 Nd5 h5 Ne3 Nf7 Ng4 hxg4 gxf7 Rh7 Nf3 Rh3 Ng1 Rh8 Ke2 Kc5 Kd3 e5 a4 g5 h4 b2 b6 b1B+ Qc2+ Kd5 a5 c5 a6 b3 b7 d6 b8Q g3 h5 g4 h6 g2 h7 g3 a7 Bb7 a8B Bh6 f8Q Ne7 Ne2 g1Q f7 g2 Qa7 e4+ Kc3 e3 Bb2 c4 Kb4 c3 Kb5 Bc6+ Ka6 Kc4 Nf4+ e2 Nd5 Qh2 f6 g1B Qg7 Bb6 f8R Qg2 Re8 Bc7 Qg3 Bb8 Rg1 Ba2 Qb1 c2 Be5 b2 Qf4+ Kb3 Bb7 e1B Bb5 Bd7 Bc8 Bg4 Be6 Bd1 Bg8 Qf2 Rg6 Qg2 Be6 Bh4 Bf7 Rg8 h8Q B4g5 Qh7 Bg7 Qhh4 Rh8 Qhg4 Rh2 Qh3+ Qg3 Qff5 Qf3 Bg3 Qg2 Qfg4 B7h6 Qf4 Bf3 Qf1 Bh5 Re1 Bd1 Re6 Ka3 Q4c4 Bb3 Qcf4 Ka2 Q1c4 Kb1 Qa4 Bc4 Qb3 Ka1 Bg8 Bce2 Bf7 Bf3 Qa3+ Kb1 Qa2+ Kc1 Nb6 Nd5 R6e7 Qf2 Qa3 Kb1 Re5 Ne7 Ba2+ Ka1 Re6 Bc6 Nd5 Ba8 Qb3 Qf1 Bb1 Qg2 Qa2#
7r/p6p/p1qQBNbQ/PrB1N1R1/4np1Q/2N1Pb1b/1nB2B2/K6k b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 g5 h4 Nh6 hxg5 Ng8 d4 cxd4 b4 Ke7 Ra3 Bh6 Rc3 Ke8 Rc6 Bf8 Ra6 bxa6 b5 Nh6 c3 Bb4 cxb4 Ng8 Kd2 Ke7 Kc2 Ke6 Kb2 Kd5 g4 Ke4 e6 d5 e7 f5 e8Q+ Ne7 a5 d3 b6 d4 g6 f4 b7 d2 b5 d3 b6 Qd5 g5 Qc6 g7 Qc2+ Ka1 Bh3 g8B Bg2 g6 Bf3 g7 Nc6 b8Q Qc5 b7 Qf2 Qh5 Qb6 Qh4 Nc8 Be6 Ne5 g8N Qc6 Qd6 Nc4 b8B Nb2 Nf6+ Ke3 Qh6 Kf2 Nc3 Bg4 e3 Bh3 Qdh5 d1B Nf3 d2 Bd3 Kg2 Ne5 Bc2 Qh4 d1B Bd2 Bf3 Rg1+ Kh2 Rg8 Kh1 Be1 Bb1 Bc7 Rb8 Rg5 Rb5 Bb6 Bc2 Bf2 Bb1 Qd5 Nd6 Bc2 Ne4 Qd6 Ng3 Bcb3 Bg6 Bc2 Ne4 Bc5
Qq4N1/RP5P/2N3n1/B5pq/K3N1pQ/pR2k3/1Qrp2bn/Rr2b1R1 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 exf5 b5 axb5 Nh6 g4 Nc6 g5 Nb8 g6 Ng8 f6 Qb6 f5 Qe6+ Be2 Qf7 gxf7+ Kd8 Bg4 hxg4 Kd2 Kc7 c4 Kb6 Kc2 Kc5 Kb3 g5 h4 e5 h5 a5 h6 d5 h7 d3 b6 Kd4 b7 e4 c5 d2 c6 e3 c7 e2 Qc2 d1Q Bd2 e1Q Ka4 Qde2 b4 Nh6 b5 Qg3 b6 Ba3 f8R Ng8 f7 Ne7 f6 Nbc6 b8R Bb7 c8N Ne5 Nc3 Qeh2 Qb2 N7g6 Ne7 Bb4 Ng8 Nf3 Nge2+ Kd3 Be1 d4 Rg1 Ke3 Ne4 d3 Nd4 Qh5 Nc6 Nh2 Rfe8 Ra6 f8Q Ba8 Rb7 Qb8 f7 Ra7 Rc7 Rb7 Qh6 Bd2 f8Q Bc3 Kb5 a4 Rf7 a3 Ka4 Bb4 Re5 Ba5 Rb5 Rc7 Rb3 Rc8 Nd4 Rc2 Ra7 Bd5 Nc6 Bb4 Nd2 Bg2 Ne4 Bc3 Bg3 Be1 b7 Rc1 Be5 Rb1 Bc3 d2 Qe8 Qg3 Qa8 Qb8 Nge7 Rd8 Ng8 Rd5 Ba5+ Rd3 Qf8 Rc3 Qf2+ Kd3 Rb4 Rc2 Qh4 Ke3 Rb3+
1qQ2Q1n/Q1r1rb2/R2NnpPr/kn3p2/7N/1pRpP1BK/3N4/1R2N3 b - - 0 1 illegal: No possible last move, all moves rejected
1B1Kb3/2p2p2/1RQp1QQ1/bP3P2/p2bq3/4nN1r/r3Q1N1/Bk1rB1N1 b - - 0 1 legal: proof: c4 b5 a4 d6 axb5 d5 cxd5 Kd7 d6 Ke6 d7 Kd6 d4 Qe8 d8B Qc6 d5 Kd7 Qb3 Ke8 Qd1 Qd7 g4 Qd6 h4 Kd7 b4 Qg6 h5 Kd6 h6 Qf5 Bh3 Qe6 Ra6+ Ke5 d6 Nd7 Rc6 Ndf6 d7 Nh5 Rd6 exd6 gxh5 Qe7 Bf5 Kf6 Bc2 Ke6 Bg6 hxg6 Kd2 Kf5 Kc3 Ke4 Kc4 a5 f4 a4 h7 g5 f5 g6 b6 g4 Kb5 g3 Kc6 g2 h6 g5 b7 g4 b8B g3 Bd2 Qg5 Be1 Qh5 Nd2+ Ke3 Bf6 Qh2 d8N Ba6 Kd7 Qh4 Ba1 Ne7 Ndf3 Bg7 Ne6 Bd4 Nf4 Nd5 Rh2 Re8 h8Q Bb6 h7 Ba5 Qc2 Bb5+ Qc6 Re4 Qg8 Rd4 h8Q Rd1 Nh5 Qe4 Qg6 Rd2 Kd8 Ra2 Qb7 Be8 Qc6 Qc4 Qhf6 Qe4 Nh3 g1B N5f4 Bf2 Nhg1 g2 b5 Qb1 Rh8 Qe4 Ngh3 g1R Rf8 Qc4 Ng2+ Ke4 e3 Kd3 e4 Kc2 e5 Kb1 e6 Qe4 e7 Bd4 Rg8 Rh1 Nhg1 Ne3 Rh8 Bd7 e8Q Rh3 Qee6 Be8 Qec4 Ra6 Qe2 Rb6 Qd7 Rc6 Rg8 Rc1 Qc6 Rd1 Ba7 Qh4 Ke7 Bd7 Rb8 Qe4+ Kd8 Be8 Rb6 Rh4 Bb8 Rh2 Qg3 Rh3 Qgg6
4k1Qr/1r1r1nB1/1bQ3pR/pNr1P1n1/K2B1p1Q/5p2/1RB1P2B/R4b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 Nc3 Qe7 cxd5 Bb7 Ne4 Bc8 Ng5 e4 N5f3 Qe5 fxe5 exf3 d4 a5 Kd2 f5 Kc3 c5 Kb3 c4+ Ka4 g6 h4 c3 b4 c2 d6 Bh6 d5 Nd7 h5 Rh7 b6 Rg7 b5 Ra6 b7 Rb6 b8B Bb7 Ba7 Nf8 d7+ Kd8 Bg2 Be3 h6 Ba8 h7 Rc6 h8B Ke7 d8Q+ Kf7 b6 Bb7 d6 Nh6 d7 Ne6 Qd5 Rd6 Qc6 Ng5 Qg8+ Ke7 Bb2 c1R Bd4 Nhf7 Rh6 Rc5 Bh1 Rh7 Bg7 Rh8 Bg2 Bc8 b7 Bf2 b8R Be3 Rb2 g3 Nh3 f4 Nf2 Rdd5 Bh3 g2 Bf5 g1R Bc2 Rb1 Ne4 Bg1 Nc3 Rd6 Rb8 Rb7 d8Q+ Ke6 Qh7 Rb3 Bf2 Rcb5 Qdg8 Ke7 Rh4 Bh3 Bg3 Bf1 Bh2 Rd7 Qh5 Rb2 Qg4 Rbd5 Rh6 Rbb5 Rb6 Rb7 Qh5 Rdd7 Qh4 Rbd5 Rb2 Bd4 Qh7 Ke8 Nb5 Bf2 Bd4 Be3 Bc3 Bb6 Bd4 Rc5 Qg8+
QrRn2B1/4Np1p/5P2/2q1Q1Bp/1pb3qk/2P1Q2p/1Q1BR2K/1r2q1R1 b - - 0 1 illegal: Other
1n2r3/3Qn2k/r2N3r/rPNQBb1b/2pRN3/q1P1n2r/3Q1Q2/bK2R1R1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 Kd2 Kf7 f4 Kg6 b4 c5 e4 a5 h4 d5 h5+ Kh7 c3 g5 Kc2 a4 b6 a3 b7 d4 h6 g3 f5 g4 b5 a2 f6 c4 e6 Ba3 f7 Ra7 f8Q Bd7 e7 Ra5 e8Q Qe7 e5 Bb2 e6 Qa3 Nd2 Ne7 Ne2 g1R Ne4 g2 Bf4 g3 Nc5 Re1 Be5 g1R Qd2 g2 Ng3 Re3 Rd1 a1N+ Kb1 d3 Nge4 Rh3 Re1 Nc2 Qff2 Ba1 Qh5 Rf1 Rg1 Ne3 Qe8 Bc8 Qd7 Re8 Qd5 Nec6 e7 Bf5 Qh4 Rf4 Qhf2 Rfh4 Qd7 Rd8 e8Q+ Ne7 Qd5 Ra6 Qed7 Re8 Qc2 d2 Qcd3 d1B Qdd2 Nc6 b8R Bh5 Rc8 Nb8 Rd8 Kg6 h7 Kh6 h8N Kh7 Rh1 g1R Nf7 Ra5 Nd6 Rg6 Ndb7 Rga6 Rhg1 Bd1 Nd6 Rh6 Rc8 Rh8 Rcg8 Bh5 R8g4 Re8 R4g3 Ng4 Rd3 Ne3 Rd4
k3Q2K/2P1r1n1/n1qr4/B1pB1b1N/Nrr5/NrPq1Q2/3BQbR1/1b1N4 b - - 0 1 illegal: No proof kernel
K1Q3r1/RP1bNbnp/Nb2NRR1/b1b5/1q2n2B/4qrrP/6Q1/1k1QR3 b - - 0 1 illegal: No possible last move, all moves rejected
r3BQ1R/1P2b2n/6n1/1b1n1R1k/1b1N1Q1n/4pRQq/rN2P3/1KQ1qNq1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 b3 fxg4 Ba3 h5 Bd6 h4 Bg3 hxg3 d4 Rh6 Kd2 Kf7 Kc2 Kg6 h4 c5 f4 a5 b6 e5 b4 c4 d6 a4 b5 a3 d7 e4 d5 g2 d6 e3 Rh3 c3 Qd4 g3 Nf3 g1N Nh2 a2 Na3 g2 Nc4 Nc6 Nb2 Nf6 Re1 Qc7 d8N a1Q d7 Ne5 Ne6 Bb4 d8Q Qd7 Qc7 Ba6 Qc8 Ngf3 f5+ Kh5 Qc7 g1N Bg2 g5 Rf1 g4 Qc8 Ng5 Bc6 Nd5 f6 Kg6 f7 g3 f8Q Qh7 Rf5 g2 Qc4 Be7 Nf1 N1f3 Qg4 g1Q Nd4 Qe1 Qe4 Qd2+ Kb1 c2+ Ka2 c1B Be8+ Nef7 Kb1 Qe1 Qc5 Bd2+ Qc1 Bdb4 Qe5 Qh8 Qh2 Kh7 h5 Rf6 h6 N7e5 Qg2 Ng6 Qg4 Re6 Qh4 Qe5 Qe4 Nfh4 Rhf3 Q5g3 Qg4 Q3g2 Qg3 Qh3 b7 Ndf4 b8Q Nd5 b6 Bb5 b7 Rea6 Qh2 Ra2 Qhg3 Ne5 Rf7+ Kg6 h7 Kh5 h8R+ Nh7 Qd6 Neg6 Qdf4 R2a4 Rf6 Ra2 Rf5+
2q1rR2/Q2q4/b3b2n/rR1bPpk1/BB6/BQr2Pb1/1R3NR1/1KnQ2q1 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 Kd2 h5 Kc2 f5 b4 Kf7 e4 Kf6 g4 c5 d7 a5 b6 c4 b5 h3 d6 c3 b7 h4 b6 d3+ Kb1 h2 Nf3 h3 Qb3 a4 Ng1 a3 Qd1 d2 Ra2 Nh6 Rb2 Na6 b8R Kg5 b7 Nc5 Bb5 Ra5 Ba4 Nd3 e5 Be7 Rb5 Re8 Bb2 Qc7 d8B Be6 d7 Nc1 Qb3 Bf6 Be7 d1Q d8Q Qdd7 Bb4 Qcc8 Ra8 Be7 b8Q Bf6 Qa7 a2+ Kc2 a1Q B2a3 Qdc6 Qd1 Q6d7 Ne2 Be7 Ng3 Bc5 Rg1 h1B Rab8 Bhd5 Nh1 h2 Rg2 Be3 R8b7 Bf4 f3 Bg3 Nf2 h1B Rg1 Bg2 Rb8 Kg6 g5 Bf1 Rg2 Kh5 g6 Kg5 g7 Bfc4 Rc5 Ba6 g8R+ Kf4 Rf8 Kg5 Qg1 Qb1+ Kd1 Qa1 Rcb5 c2+ Kd2 Qb1 Qf1 Qa1 Qd1 Qd4+ Nd3 Qg1 Nf2 Na2 Kd3 c1R Kd2 Rc6 R8b6 Nc1 Rb7 Bc4+ Kc2 Bcd5+ Kb1 Rc3 Rc7 Rd3 Rc2 Rc3 Rb2
q1N1q1N1/3pqRRn/3Q4/2QP2bP/b1RK2Nr/2R1Q2r/b6q/B2nn2k b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 b4 hxg4 b6 c6 b5 Rh4 b7 Rh7 b6 Rh8 Bb5 cxb5 Ke2 Kf7 Kd3 Kf6 h4 Ke5 c4 Kf4 f6 g5 f3 Kg3 f7 Kg2 f4 a5 c5 e5 f5 g3 f6 b4 c6 a4 c7 e4+ Kc4 e3 d4 e2 d5 e1N Bb2 b3 Bd4 b2 Qh5 a3 Qg4 a2 Nd2 b1B Qe6 g4 Nf1 Be7 f8Q Qe8 f7 Nc6 b8Q Nb4 b7 Nbc2 Nh3 Ra4+ Kc3 Bg5 Nd2 Ne3 Ne4 Nf6 Qc5 Nh7 f8R Bc2 Rb1 a1Q+ Rb2 Rb4 Rf7 Qa8 Nhf2 Ba4 Rg1+ Kh2 Nf6 g2 Re2 g3 Ng8 Qe7 Bf6 Rg4 Qe4 Nd1+ Kd4 Rf4 Rc2 Rf3 Rf1 g1Q Qe3 g2 Rc3 Rh3 Ng4+ Kh1 Rf4 Qh2 Be5 g1Q Rg7 Qgf2 Rff7 Qe8 Rc4 Qf6 h5 Qfe7 Qd6 Rh4 Qa7 Rh3 b8R Ba6 Rc3 Bc4 c8N Ba2 Qac5 Rh4 Rb4 Rh3 N8h6 Rf8 Rbc4 Rh4 Rf2 Rf3 Ng8 Rfh3 Rff7 Ng2 Bg3 Qa6 Be1 Qa8 Bd2 Ne1 Bc1 Q7d8 Bb2 Qde7 Ba1
1nQ2K1b/nk3R2/8/1B2BRP1/2p3rN/2Bb1rq1/2PRr1qR/b1nQ1Q1r b - - 0 1 illegal: No possible last move, all moves rejected
2Q1N1k1/1b1BBb1n/3pRrnB/1K5b/4r3/bQ1Q3q/NP1PqQ2/2nN3r b - - 0 1 illegal: No proof kernel forced: bxDB
rRQqb1n1/2k1p3/1bNN4/3P1r1N/2bn2qR/NQ2K1nr/1b1QPR2/3B4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 h6 g5 Bb7 b3 Qd7 g6 Qd6 Bb2 Bc8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 h4 f5 d4 c5 d6 a5 b6 c4 b7 a4 h5 a3 h6 g4 d5 c3 b4 f3 b5 f4 g7 c2 b6 c1R h7 g3+ Ke1 g2 Kf2 a2 Nh3 Nc6 b8Q Nd4 Qd2 Ba6 b7 Bc4 Na3 Rd1 Rc1 a1Q Ng5 Qb2 Rh4 Qb4 Ne4 Qa4 Ra1 Rb1 Ng3 Rb6 Nh5 g1B+ Ke1 Rb3 Bg2 f2+ Kd1 f1N Be4 f3 Bc2 f2 Kc1 Qa7 Bd1 Ng3 Rb1 f1B Qc8+ Ke8 b8Q Rf3 Qb3 Qa4 Ra1 Bh3 d7+ Kf7 Rb1 Bf5 Rb2 Bg6 Rb1 Rf5 Rb2 Qda5 d8N+ Ke8 Nc6+ Qd8 Rb1 Nf6 g8N Bg7 Nh6 Ng8 Nf7 Bf6 Rf4 Be3 Rf2 Bg7 Qa6 Kd7 Nd6 Kc7 Rb2 Be8 Rb1 Ne6 Kc2 Ba1 Rb2 Bb6 Kc3 Nc5 Kd4 Qb4 Ke3 Qa4 Qab5 Ne6+ Qc5 Nd4 Qa2 Ba5 Rb8 Bb6 Qb3 Bb2 Nf4 Ba6 Nb7 Nf3 Nd6 Kd7 Na5 Qb4 Nh3 Qg4 Nf4 Nd4 Qcc2 Rg5 Qf5+ Kc7 Nc6 Rh5 Qe6 Bc4 Qf5 Nh6 Qe6 Rf8 h8R Ng8 Rh7 Rh3 Rh4 Rf6 Nh5 Rf5 Qc8+
1Kb1kNQr/B1pB1Rr1/B3n3/1N6/P1q2nq1/q3b3/QqPb4/2Q2nNB b - - 0 1 illegal: No possible last move, all moves rejected
1k1n3q/3RnR2/1np1Qr1b/r1Pn3r/b3QPrN/8/NB1Q1K1N/nR2N3 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 b4 d5 h4 Kd7 c4 a5 f4 g5 e4 d4 e6+ Kd6 h5 c6 e5+ Kc7 e7 g3 e8Q g4 e6 a4 c5 a3 h6 d3 e7 a2 h7 Ba6 Nd2 Bh6 Rb1 a1N Bb2 Nd7 b6+ Kb8 b7 Bb5 Nf1 Ba4 b5 Ra5 Nf3 g1N N1h2 g2 Qd2 Nb6 Kf2 Ne2 Rhd1 g1R Ne1 Nd4 Qg6 Rh1 e8Q Ne7 Qe6 Rf8 h8N Rf6 Ng6 Qc8 Qe4 Ne6 Nh4 Qd8 Qf7 Qh8 Qg8+ Nd8 Qge6 Ka7 b8N g3+ Kg2 Kb7 Na6 Ka8 Nb4 Kb8 Kf3 g2 Na2 g1R Kf2 Rg4 Nf1 Nbd5 b6 Rh3 b7 Nb6 Qc3 d2 Nh2 Rd3 Qc1 Rd5 Qcc2 Kc7 b8R Rh5 Rc8+ Kb7 Rc7+ Kb8 Qcd3 Ng6 Rf7 Ne7 Rdc1 d1N+ Kf3 Ne3 Qd2 Ra8 Kf2 N3d5 Rc4 Ra5 Rd4 Nc7 Rd6 Ncd5 Rd7
2BqrQ2/nr5b/1b1B3R/kNnn1b1r/2pPrB2/1NP3K1/B5Q1/1Q1nN3 b - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 g5 fxg5 h5 g4 Nd7 g6 Nb8 b4 Be6 g5 Bd7 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 h4 c5 d4 Kc7 g7 Kb6 g6 f5 c3 a5 h5 e5 h6 e3+ Kg2 e4 h7 f4 Qb3 a4 Qe6+ Nc6 Rh5 g3 Be2 f3+ Kh3 a3 Bd2 g2 Kg4 a2 Bd1 a1N Kg3 e2 Qd6 e1R Bf4 e3 Nd2 f2 Rh6 f1B Bg4 e2 Nb3 Nf6 g8Q Bf5 g7 Nd5 Nf3 Rb1 Ne1 g1N Qg6 Be7 Qf8 Nh3 g8B Nf2 Bd6 Na7 Bf7 Be4 Bc8 Bh3 Qgg8 Bhf5 Qgg7 Rg8 h8N Nd1 Bfe6 Bf6 Nf7 Rh8 Bf4 Bh7 Nd6 Bef5 Qg4 Rb8 Qf3 Rb7 Qg2 Re7 Bg8 Re8 Bf7 Kc7 b6+ Kc6 b7 Kb6 b8B c4 Bg6 Be5 Nb5 Bc7 Nc2 e1R Bd6 R1e4 Ne1 Kc6 Bf4 Bb6 Bbd6 N1e3 Bh5 Rb2 Bd1 Rb1 Bc2 Rb2 Bb1 Nd1 Nc1 Nb3 Ba2 Nc5 Nb3 Bc7 Na3 Kb6 b5 Bb8 Na1 Ka5 b6 Rb3 b7 Bc7 b8Q Rb7 Nb5 Bb6 Nb3+ Ka4 Qa8 Bg8 Rf6 Rh5 Bb1 Bgh7 Rg6 Ba5 Rh6 Nc6 Qa6 Na7 Bb8 R4e5 Qe6 Re2 Qee4 Bb6 Qc2 R2e4 Ba2 Bd7 Qb1 Bdf5 Na1 Ka5 Bbe5 Rb8 Bd6 Rb7 Nb3+
N3nr2/K1Q1R3/2N3rp/3b1n1N/4B1bP/2b1r1Q1/NR4Pb/1QnrkqR1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 e4 b3 e3 Bb2 g5 Be5 Bb4 Bf4 gxf4 Qc1 exf2+ Kd1 Na6 Qc2 Bf8 Kc1 Nb8 Qd1 Bh6 Qe1 Bg7 Qd1 Bf8 Kc2 Ke7 Kd3 Kf6 Kd4 Kg5 h4+ Kg4 e4+ Kg3 d6 c5+ Kc4 f5 d4 a5 b4 a4 d7 a3 d5 a2 e5 h6 d6 f3 e6 f4 b6 Nf6 Kb5 c4 b7 c3 e7 c2 e8R c1N Bd3 f1B Re7 Kf2 Nc3 Ra3 Rb1 a1B Nge2 Nc6 b8N Rg8 Na6 Rg6 Ng3 Ne8 Na2 Bc3 Nc7 Nd4+ Kb6 Nf5 Be4 Bc4 b5 Bd5 Nh5 Bfg7 Qb3 Bge5 Rg1 Ke2 Qb4 f2 Rb3 f1R Rb2+ Ke1 Qb3 Ba6 Ka7 f3 b6 f2 b7 Bh2 b8Q Qc8 Na8 Qc4 d8Q Bc8+ Qa5 Qe2 d7 Qd3 Rh1 Rg1 d8N f1R Qc2 Rf3 Qc7 Qf1 Nc6 Re3 Qb1 Ra4 Bd3 Rf4 Be4 Nfd6 Rb5 Bg4 Ncb4 Kf2 Nc6 Qd3 Qb8 Rd1 Rb6 Qf1 Rb2+ Ke1 Rg1 Rf8 Qab6 Nf5 Qe5 Re2 Qbc7 Re3 Qg3+
Q3NN2/3Qr3/2bR3q/4p1nq/1bP1R1b1/r4kNQ/1Rn1P1b1/1K1Rr1Br b - - 0 1 illegal: Other
1br5/Q7/q1N1pB1n/2bb1q2/k6r/1rRQNP1N/4P1Bn/K1brBQ1N b - - 0 1 legal: proof: c4 b5 b4 h5 a4 d5 cxd5 f5 axb5 h4 g4 fxg4 Ra3 Nc6 Rf3 Nb8 Rg3 hxg3 d4 Kd7 Kd2 c5 Kc2 a5 Kb2 g5 h4 c4 b6 g2 h5 a4 b5 e6 f3 c3+ Ka1 c2 h6 g3 d6 g4 h7 a3 d5 a2 b7 Qa5 b6 Nh6 Bd2 c1B Nc3 Nc6 b8Q Ne5 Qa7+ Bb7 Ne4 Rc8 Nh3 g1R Nef2 g2 Be1 g3 Qd3 Neg4 Qd1 Rg8 h8N Nh2 Ng6 Rh8 Ngf4 Be7 Qd3 Bd8 Qd1 Bc7 Qd3 Bc6 b7 Bb8 Qd1 Qc5 Qd3 Qc2 Qd1 Qf5 Qd3 Kd8 d7 Kc7 d8B+ Kd7 d6 Bd5 Qb1 Kc6 d7 Rh7 Bf6 Rhh8 Bb4 Kb5 d8Q Rh7 Ba5+ Ka4 Qd3 Rg7 Qdb6 Rg4 Qbb1 Rh4 Ng6 Rb4 Ne5 Rb3 Nc4 N2g4 Rh2 Rh1 Ne3 g1B Rg2 Rh2 Nh1 Bf2 Rg1 g2 Nc2 Bc5 Ne3 Bg3 b8N Bgd6 Nc6 Bb8 Ng5 Rh4 Nh3 Nh2 Qd1 Qd3 Be1+ Qa6 Qdd3 Qa5 Ng3 Qa6 Rh1 g1Q Bg2 Qf1 Rg1 Qf2 Nh1 Qg3 Bb4 Qg5 Rd1 Qf5 Be1 Rf8 Rd2 Rc8 Rc2 Bd2 Rc3 Ra3 Kb2 a1R Bf2 Rb3+ Kc2 Rhb4 Qf1 Rh4 Bg3 Rd1 Be1 Ra3 Kb2 Bc1+ Kb1 Rb3+ Ka1
k1r1Q2q/Pnb3p1/1R1qr1Pb/4Bb2/N3Q3/4R1pn/1R1QB2Q/3BKn1r b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h6 cxd5 Na6 Nc3 Nb8 Ne4 h5 g5 Ra4 Nf2 Ra8 Ng4 hxg4 g6 Kd7 d4 f5 e4 c5 a4 Kc7 h4 b5 Rh3 Kb7 d6 c4 e6 c3 e7 c2 e8B f4 h5 f3 a5 b3 e5 b2 d5 b1R a6+ Ka7 e6 b4 h6 b3 e7 b2 h7 Qd7 Ra2 Nh6 Bf4 Qc7 d7 c1B d8Q f2+ Ke2 Qb6 d6 Nf7 d7 Ng5 Qa4 Nc6 Be5 Na5 Qe4 Nb7 Bf7 Ra1 Bb3 b1Q Rb2 Qd4 e8R Bd6 Re6 Re8 h8Q Bc7 Rb6 Re7 Rc3 g3 Qde8 Qb4 d8Q Bf5 Kd1 Rc8 Ne2 Ka8 a7 Re6 Rd3 Qe7 Nc3 Qa3 Qdd4 Qd6 Na4 Bd2+ Ke2 Qc1 Rf3 Be3 Qd2 Qc4+ Qed3 Qh4 Qe4 Qh1 Qh3 Qh2 Qg2 Qh8 Qh2 Nh3 Bc2 Ra2 Kd1 Bh6 Bc4 Ra1+ Ke2 Rf1 Bd1 Rh1 Bd3 f1N Re3 Qa3 Ke1 Qd6 B3e2
2q5/pRN1pq2/nn1PPQ1b/KN1q2R1/2kBRQ1Q/8/3r1nr1/1bQ1b1N1 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Bg2 h3 Qd1 hxg2 h4 Kd7 b4 Kd6 e4 c5 f4 g5 d4 c4 Kd2 g3 Kc3 g4 e5+ Kc7 h5 Kb6 d6 Bf5 h6 Qe8 h7 Qc6 d5 Qc7 d7 Qb7 d8N Bc8 f5 Nf6 Rh4 Rg8 h8Q Bh6 Ra5 Na6 Bb2 Nd7 f6 Rb8 d6 Qd5 f7 Rg5 f8Q Rg7 Nf3 g1Q Qf4 g2 Na3 g3 Qdc1 Qf2 Ne6 g1N Nc7 Nh3 Ng1 g2 e6 Bb7 Ba1 Qf1 Qf6 Nf2 Re4 Rf8 Qh4 Rg5 Qf6 Ba8 Nf3 g1B Qhf4 Bh2 Ng1 Rg2 Q4h4 Bg3 Qcf4 Kb7 b6 Kc6 b5+ Kc5 b7 Nb6 b8Q Bc6 Qd8 Be8 Qc1 Bg6 Qff4 Rf5 Qf8 Re5 Q8f6 Rh5 Re3 Bb1 Re4 Re5 Rd4 Re2 Re4 Rd2 Bb2 Nd3 Ba1 Be1 Bb2 Nd7 Ba1 Nf2 b6+ Kc6 b7 Nb6 Nab5 Kc5 b8R Rd1+ Kb2 c3+ Ka3 c2 Bc3 Rd2 Bd4+ Kc4 Rb7 Qe2 Qg7 Qeh5 Qgf6 Qf7 Nc3 Qc6 Rg5 Qd5 N3b5 Nd3 Qb2 Nf2 Qa1 c1Q+ Qb2 Nc8 Ka4 Nb6+ Ka5 Kd3 Na8 Qc8 Nc7 Kc4 Qc1+
5Q2/3n1r1Q/b1k1prNq/n2PPR1q/1p2Kb2/1qN4R/R2R2Nr/5BQb b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h6 g6 Kd7 g7 Ra6 g5 Rh7 g6 Rh8 Bb2 Ke8 Bf6 Ra8 Bg5 hxg5 Kf2 Kd7 Ke3 c5 h4 b5 a4 f5 d4 e6 d6 g4 h5 b3 h6 f4+ Kd3 f3 e4 f2 e5 c4+ Ke3 b4 h7 b2 a5 c3 a6 g3 a7 c2 Bg2 f1R Ne2 c1Q+ Ke4 Qh6 Ra2 Qe8 Nf4 Ne7 g8R Nec6 g7 Qeh5 Rh3 Ba6 Nc3 b1B+ Rc2 Ba2 Rd2 Na5 Qc1 Be7 Rf8 Kc6 g8Q Nd7 Rf5 Rf8 a8R Rf7 Qd1 Rf2 Qg1 Bg5 Bf1 g2 Qg7 Rhf8 h8N Bb3 Nhg6 Bd5+ Ke3 Rf6 Qh7 R8f7 Ra7 Nb6 d7 Be4 d8Q Nd7 Qh2 g1Q Qf8 Bh1 Qg3 Rg2+ Ke4 Rh2+ Ng2 Qf2 Qe3 Qg3 Qg1 Bf4 Na2 Qb3 Nc3 Bc8 Ra8 Nc4 Ra3 Ba6 Raa2 Na5 d5+
3Qq3/Knk1Nb1Q/1r1N1p2/B1bbrN2/3B1P1P/1qrR4/p3Qnq1/3B3Q b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 d4 hxg4 b4 e5 d6 Qe7 d5 Qf6 Ra3 Qh4 Rd3 Qd8 Rd4 exd4 Kd2 Kd7 Kd3 c5 Kc4 g5 h4 a5 f4 d3 e4 f6 b6 a4 Kb5 c4 e5 c3 b7 d2 Bb2 g3 Rh3 c2 Bd4 c1R Nc3 a3 Be2 g2 Ne4 g4 Rd3 a2 Nf3 g3 Qh1 g1Q Bd1 Na6 b8Q g2 Qa7+ Bb7 e6+ Kc8 e7 Nh6 e8Q Rb8 d7+ Kc7 Nd6 Ng4 Qe1 Qe8 Qe2 Rh5 Ka5 Qf1 b5 g1Q d8N Qgf2 Nc6 Q2g2 Ne7 Re5 b6+ Kd7 Qg1 Nc5 Qh1 Nf2 Kb5 Kd8+ Ka5 Ba8 b7 Rc3 Kb6 Qfg1 Ne4 Q1h2 d6 Qhh3 d7 Qe6+ Nd6 Qc4 Qa4 Qb3+ Ka7 Kc7 Qc4 Bh6 Qf7 Bf8 Bc2 d1B Qh7 Qb5 Ba4 Bb3 d8B+ Kd7 Qb2 Bf7 Bd1 Qc4 Ba5 Qb3 Bb4 Kc7 Qe2 Rd8 Nd2 Rd7 Ndf5 Rd6 Nc4 Rb6 b8Q+ Kd7 Qeh5 Bad5 Ba5 Nb7 Qa8 Kc7 Qe2 Qg6 Nc8 Bd6 Nce7 Bc5 Ncd6 Qg2 Qd8+
2q2rNN/1p2q2B/2bQR2p/N1b3nQ/1PP2Rqn/K3NR2/3Q1b1k/5nr1 b - - 0 1 legal: proof: h4 c5 e4 a5 d4 cxd4 b3 f5 exf5 g5 hxg5 a4 Bb2 a3 Rh5 axb2 Rh2 Nf6 Rh1 Ng8 Kd2 Kf7 c4 e5 Kc2 d5 g4 h6 a4 e4 f4 e3 f6 Ke6 f7 e2 a5 e1B f5+ Ke5 a6 Kf4 a7 Kg3 g6 Bc5 f8Q Bb6 g7 Bc5 b4 d3+ Kb3 d2 g5 d4 f6 d3 g6 Be6 f7 Bcf2 Nc3 b1Q+ Ka3 Qc2 Nf3 Bd7 Nd4 Qc8 Rh4 Ne7 g8R Na6 g7 Nc5 Nc6 Ng6 Nd5 Ne4 Na5 Bc6 Ne3 Ng5 Qh5 d1N Rf4 d2 Bd3 Nh4 Qd6 Kh2 Rf8 Rg8 Bh7 Qe4 Rb1 Rb8 a8Q Qe7 Qa7 Bg1 Qad4 Bef2 Re8 Rf8 g8N Ra8 Rb3 Rb8 Nf5 Ne3 Qb2 d1Q Qbd2 Nf1 Ne3 Qdg4 Rd3 Qf6 Re6 Qe7 Rb3 Re8 f8N Ra8 Ng6 Rf8 Ng2 Bc5 Rbf3 Bgf2 Ne3 Ra7 Nh8 Ra8 Kb2 Ra7 Nb3 Ra1 Na5 Ng3 Be4 Rg1 Ka3 Nf1 Bh7
kq2R1RN/rp1Q1Q2/3Pp3/q3n2R/b6K/bNnn4/r1B1P2N/QN3r1b b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h6 g6 Kd7 g7 Ra6 g5 Rh7 g6 Rh8 Bb2 Ke8 Bf6 Ra8 Bg5 hxg5 Kf2 Kd7 Kg3 c5 a4 Kc7 d4 f5 h4 b3 h5 c4 h6 c3 h7 e6 a5 f4+ Kg4 f3 a6 c2 a7 c1N Rh3 b2 Rg3 f2 Bh3 f1R Nf3 Nd7 Nh2 Ne7 g8R Nd3 g7 N7e5+ Kh5 g4 d6+ Kb6 d7 Nd5 Ra5 Ba3 Re8 Nc3 g8Q Qc7 d8Q Bd7 d5 Ba4 Qd7 Qb8 Qgf7 Rf8 Rg2 g3 h8N Rg8 Rg1 g2 d6 Rg3 Bf5 Re3 Rh1 g1Q Kh4 Qg6 Be4 Qf5 Rg1 Ref3 Rgg8 Rg3 Nd2 b1B Nb3 Bc2 Qa1 Bc6 Nd2 B2a4 Nb1 Rgf3 Bd5 Re3 Bb3 Bh1 Bc2 Re4+ Ng4 Rb4 Rc5 Rb2 Nh2 Ra2 Ra5 Qc8 Rd5 Rb8 a8N+ Ka7 Nb6 Ra8 Nc4 Qb8 Ncd2 Qg5+ Kh3 Qgd8 Rc5 Qa5 Kh4 Qbd8+ Re7 Kb8 Rd5 Ra7 Nb3 Ka8 Rb5 Qb8 Ree8 Ng4 Rbg5 Nge5 Rh5
1RRQ4/2br2N1/2rRPBp1/k6r/2q1Q1P1/1N2rpnQ/Nb2bK2/2nQ3r b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 g3 b5 axb5 h4 Bg2 h3 Qc2 hxg2 Qa4 Bh3 Qd1 Bc8 e4 Kd7 b4 a5 h4 c5 d4 Kc7 e5 Kb6 d6 f5 e6 f3 g4 f4 d7 c4 d5 g6 h5 c3 d6 a4 h6 a3 h7 c2 Nh3 g1R+ Kf2 a2 Nd2 Re1 Bb2 c1R Nb3 Re3 Bf6 Rc6 Rc1 Qc7 d8N a1B d7 Ba6 Rc3 Bd6 Rh2 Rc5 Nc6 Ra7 d8Q Nd7 Rd3 Bde5 Rd6 Ne7 Qa8 Rc8 h8Q Nf5 Qh7 Ng3 Qh6 Rh8 Qd8 Kb7 b6 Be2 b5 Bab2 Nb4 Rc6 Na2 Nc5 Qh5 Rh6 Qf5 Rh5 Qe4 Ra8 Qh8 Rd8 Rg2 Rd7 Qh7 Kb8 b7 Ka7 b6+ Ka6 b8Q Qc8 b7 Nd3+ Kg1 Nc1 Kf2 Qc7 Qd8 Qc8 b8R Qc7 Kg1 Qc8 Rh2 f2+ Kg2 f1R Rh1 Rg1+ Kf2 f3 Nf4 Re1 Rh3 Rh1 Qh6 Rh4 Nh5 Qc7 Ng7 Rh5 Rd2 Qc8 Rd3 Bc7 Rd6 Qb7 Rh4 Qb5 Rc8 Qc4 Qhh8 Rh7 Rh5 Kb6 Rb5+ Ka6 Rbb8 R7h5 Nc5+ Ka5 Qh6 Rf5 Qh3 Rh5 Nb3+
n1N1b3/q1rR1QKP/n3r2R/3pp3/1B1r2RQ/QN2k3/Qb1Pb2N/3b2b1 b - - 0 1 illegal: Other
2QB4/np3KNr/B1R1Bn2/2b1Q2P/1nb1p1q1/1bNB1k1Q/NP2r1nn/8 b - - 0 1 illegal: No proof kernel
r2q4/rp1p2k1/3PQ3/1PR1R1Rb/QnBn3B/b3rrB1/3N1nBK/4Qb2 b - - 1 2 illegal: No proof kernel forced: wxLB
3Q1Kn1/r3Qbpb/4p1P1/q6R/kNBN1n2/RNqQr3/1b3bPb/1N4R1 b - - 0 1 illegal: No possible last move, all moves rejected
N2R4/p1bK2pk/3b1qPn/N4B2/r2r4/RN1qn3/P1NQq3/2R1QQnq b - - 0 2 illegal: No possible last move, all moves rejected
1r3rq1/1b2K1QR/1k3n1R/2B2N2/n1BPBpp1/3RQP2/1bnRqn2/r3Q3 b - - 0 1 legal: proof: d4 b5 g4 e5 a4 h5 axb5 hxg4 Nd2 d5 Ndf3 e4 Ne5 Ne7 c4 Ng8 Nd3 exd3 cxd5 Bd7 Qa4 Be6 Qd1 Bc8 Kd2 Kd7 Kc3 a5 Kc4 c5 e4 Kc7 h4 f5 b4 g5 h5 g3 d6+ Kb7 Kd5 g4 d7 a4 Ke6 f4 e5 g2 b6 a3 h6 a2 h7 d2 b5 c4 f3 c3 Qe1 d1R Bc4 c2 Ba3 c1N Ne2 g1N Rh6 Bc5 Ng3 Ra7 Nf5 Be7 Bc5 Ra3 Rb1 a1Q Rb3 Ra6 Rd3 Qa2 Kf7 Qd2 e6 Nb3 Qe3 Bd6 e7 Nh3 e8B Nf6 Ke6 Rda1 Bg6 Rg8 h8R Nf2 R8h7 Ra8 Kf7 Na6 Qe1 Kb8 b7 Kc7 b8R Qe2 b6+ Kc6 b7 Nb4 Rd2 Nc2 Rd3 Nc1 Rd2 Na2 Rd3 Nc3 Rd2 Qb6 d8Q Na4 Qf8 Qd8 Qg7 Be7 Ba7 Ba3 Bc5 Bb2 Rd3 N2e4 Rd2 Qd5+ Ke7 Rf8 Rd3 Qg8 Rd2 Ra5 Ra8 Rb5 b8Q Rb3 Qe5 Nf2 Qe3 Rb8 Ra5 Kc7 Rb5 Kc6 Rb3 Bb7 Rbd3 Kc7 Bgf7 Kc6 Bcd5+ Kb5 Be4 Ka6 Bc4+ Ka5 Bd6 Kb6 Bc5+
1bN1rQb1/2b2QQ1/8/3rnn2/P1NB2kr/Qp6/BP1pqb2/KR3NqB b - - 0 1 illegal: No proof kernel
3kn1K1/2Bb2bN/NQ1PQqRp/1QN2Bq1/2N4P/2r1b3/1B2p2q/n2q3r b - - 0 1 illegal: No possible last move, all moves rejected
2RB2k1/q1nQ1r1R/3PN3/nrNr3p/1R1pNbbK/4R2P/2q5/1Q1n1rQ1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 g4 fxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 e6 d6 Qg5 d7+ Kf7 d5 Kg6 d6 Kf7 Bg2 Qd8 Bd5 exd5 b4 h5 e4 c5 f4 g5 Kf2 a5 Kg3 a4 b6 d4 b5 a3 b7 a2 e5 c4 b6 c3 f5 c2 f6 Bh6 h3 Ne7 Bf4 c1Q e6+ Kg8 Qf1 Ra5 Nc3 Qc7 d8N Nd5 e7 Rh7 Na4 Na6 b8Q Nc3 b7 Nd1 Ne2 Q1c2 Nec3 Bd7 Rb1 a1N Ne4 Nb3 Qf2 Qb6 Re1 Qa7 Re3 Re5 Qc7 Na5 b8Q Be6 Qb3 Rb5 Nac5 Rg7 Qd7 Nc7 Qb2 Bf5 Nde6 Rh7 Kg2 g3 Be5 g4 e8R+ Bf8 Re7 Bh6 Qa2 Bf4 Rb4 Rg7 Qb1 Rg5 Kg1 g2 Rh7 Rg7 Qg3 Re7 Kh2 g1R+ Nf2 Rf1 Kg2 Qb3 Nfe4 Qc2+ Qf2 g3 Kf3 Bg5 Bf4 g2 Kg3 Bh6 Bg5 g1R+ Kh4 Rg2 Qg1 Rgf2 Nd8 Re5 Nde6 Rf3 Re7 Rd5 f7+ Kh7 Bf6 Bg4 Bg5 Rff5 Bf6 Bf4 f8R+ Kg6 Rc8 Kh6 Ng7 Kh7 Bg5 Rf8 Nge6+ Kh8 Rh7+ Kg8 Bd8 Rf6 Qg3 Rf7 Qg1
3BqQrB/2b1pp1N/4b3/Q3B2Q/4PKBn/b1P1r1RN/3n2kN/2rr3q b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h5 g4 Rh7 g6 Rh8 b4 Bh6 g5 Bf8 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 Kf2 d5 Kg3 Kd7 h4 Ke6 e4 Ke5 h5 a5 c3 a4 b6 d3 b7 d4 h6 d2 g7 a3 g6 a2 b5 a1R b6 d3 h7 Nh6 g8Q Nd7 b8N Nc5 b7 Nb3 Be2 Bg7 Rh3 Be6 Qe8 R8a2 Qf8 Qe8 Bf3 Bf6 g7 Rc2 Qe2 d1Q Be3 d2 g8Q Qc1 Qgg7 Rg8 h8B Raa2 Qg5+ Nf5+ Kg2 g3 Bb6 Qd1 Bd8 Rc1 Qa6 Rb2 Qh5 Kf4 Bg4 Be5 Nd7 Bc7 Qa5 Ra2 Nf6 Nh4+ Kh1 g2+ Kh2 Qf3 Nh7 d1R Nd2 Qf1 Ndf3 Re2 Rg3 Re3 Kh3 Nd2 Nh2 Be5 b8B Qe1 Ngf3 Qh1 Ng1 Bd6 Ba7 Bc7 Bad4 Rf3 Bdg7 Ke3 Be5 Kf2 Ne2 g1B Nf4 Rd3 Rf3+ Ke1 Kg3 Bc5 Qb6 Ba3 Qa5 Re3 Nh3 Ke2 Kf4 Ke1 N3g5 Ke2 Rh3+ Kf2 Rf3+ Kg1 Nh3+ Kg2 Rg3+
K1N1Q3/2NRB1qN/B3Pprr/Bbp5/5b1Q/1n2Q3/q1r2Pn1/Qbk4b b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 d4 gxh4 b4 e5 d6 Qe7 d5 Qg5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 Kd2 Kd7 Kd3 a5 Kc4 h5 Kc5 f6 e4 h3 g4 d3 e5 a4 g5 h2 b6 a3 g6 a2 b7 a1Q g7 d2 b5 h4 b6 h3 Ba3 Qa2 Nc3 Rh6 Nb5 Qe7 Qa1 d1B Nf3 Be2 Ng5 Rg6 Nh7 Nh6 g8N Qg7 Ne7 Nc6 b8Q Na5 b7 Nf5 Qa7 Ne3 b8Q Ng2 Bb4 Ba6 Nc8 Bd3 Qbb7 Bb1 e6+ Kd8 Be2 Nb3+ Kc6 Be7 d7 Bd6 Q7d4 Bf4 Rd1 h1R Qe3 h2 Ba5 Rb8 Rd4 Rc1+ Bc4 h1B Qb6 Rb7 Rd3 Rc2 Qbd4 Bh2 Qh4 Bf4 Nbd6 Rb4 Ne8 Bb5+ Kb7 Ra4 Ka8 Rb4 Nb6 c5 Nc7 Ke7 d8B+ Kd6 Rd2 Ra4 Be2 Re4 Rd4 Ke5 d6 Rh6 d7 Kf5 Rd6 Rec4 Nc8 Ra4 Qd2 Ke4 Be7 Rd4 d8Q Rd5 Ra6 Rg5 Rd6 Rgg6 Bc4 Kf3 Qe8 Ke4 Rd7 Kf3 Qc1 Ke4 Bd5+ Kd3 Bb7+ Ke2 Nd5 Kd3 Ba6 Ke2 Qe3+ Kd1 Qd3+ Kc1 Nc7 Be5 Qdh3 Bf4 Qe3+
br6/3K1pN1/krNpRR2/bq2r1bB/4P3/Q7/Q2P1b1q/1nQ1nRNN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ba3 Qb6 axb5 Qf6 b6 Qg5 b5 Qd8 Bb4 cxb4 Kf2 g5 Kf3 a5 Ke4 d6 Kd5 Kd7 h4 f3 e4 f2 c4 b3 h6 g4 h5 b2 c5 a4 h7 g3 h6 a3 b7 Kc7 c6 Kb6 c7 g2 Nc3 b1Q Qc1 a2 Nd1 Nd7 b8N Be7 Nc6 Ne5 Be2 f1R Bh5 Rb8 Nf2 Bb7 c8Q Qb4 Qh3 Ba8 Qha3 Bg5 Rh4 Rb7 Rf4 Nd3 Nd4 Ne1 Nf5 Qe7 Rb1 a1B Nh1 Bc3 Ng7 Qb2 Rf5 Ba5 Rf6 Ka7 Kc6 Qee5 b6+ Ka6 Ra1 Rf5 Qa2 Rb8+ b7 Ne7+ Kd7 Qh2 Qa3 Rhe8 h8Q Nd5 h7 Ree5 Qhc8 Rf1 h8R Nc3 Rhh6 Nb1 Q8c2 Rf3 Re6 Rb3 Rhf6 Rbb5 Qcb3 Rb6 Qba2 Nc3 Ne2 g1B Rb1 Bf2 Ng1 Rf8 Ra1 Nb1 b8N+ Ka7 Rh6 Qb5+ Nc6+ Ka6 Rhf6 Rfb8 Qcb2 Nc3 Rd1 Nb1 Qc1 Nd3 Rf1 Ne1 Qg3 Nd3 Qe3 Ne1 Qea3
k3Qr2/1p1bq2p/2q1n2K/n3n2P/1QBN1RRn/rPb5/2b5/Q1N1R1NQ b - - 1 2 legal: proof: g4 d5 d4 f5 b3 e5 Bb2 fxg4 dxe5 a5 c4 a4 cxd5 a3 Bg2 axb2 Bh3 Be7 Bf1 Bf8 Kd2 Kd7 Ke3 c5 Kf4 Kc7 a4 g6 e4 g3 h4 g2 a5 c4 d6+ Kc6 e6 c3 d7 c2 e7 c1N Kg5 Nd3 f4 Ne5 a6 Kb6 f5 Ka7 h5 Nh6 f6 Nbc6 e8Q Bb4 Qe7 Re8 f7 Nf5 f8R Bc3 Ra4 Ng7 Rf4 Na5 Bc4 Rf8 Kh6 g5 Qb4 Qe7 d8N g4 Ne6 g3 Nd4 Bd7 Qf1 Ne6 Rg4 Be1 Nc3 b1B Na2 Bc2 Nc1 Bc3 Qd1 Nf3 e5 Nh4 Ngf3 Kb8 Re1 g1Q Rf4 Qf2 Ng1 Qf3 Rg4 Qc6 a7+ Kc7 Qf3 Kc8 Qh1 g2 Ngf3 g1N Rf4 Nh3 Ng1 Nf2 Rg4 Nd3 Rf4 Rb8 a8Q Kc7 Qa6 Ra8 Rg4 Kb8 Rf4 Nec5+ e6 Ne5 Ra2 Bd3 Rg2 Bc2 Rgg4 Ra7 Qab5 Ka8 Q5a4 Ra6 Qa1 Qed6 Kg7 Ra7 e7 Ne6+ Kh6 Qdc7 e8Q+ Qd8 Qf7 Qe7 Bd3 Nac4 Be2 Ra3 Bf1 Na5 Bc4 Qa6 Qg6 Qc6 Qe8+
4nn1q/N4Rnk/1b1r1Qb1/2r1QPB1/1r2pp2/1BN1P2B/N3Kn2/1Q1r3Q b - - 0 1 illegal: No proof kernel
Br4r1/2npp1q1/R2BN1Qn/b1B2Br1/KQ4R1/2b2P2/4P1b1/Qb1Rr1k1 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 cxd4 Nd2 Nf6 Ndf3 Ng8 Ne5 f5 gxf5 Ba6 Ng4 hxg4 Nf3 Bb7 Ng1 Bc8 Kd2 Kf7 b4 Kf6 h4 Ke5 c4 Kf4 Kc2+ Ke4 Kb3 g5 h5 a5 f6 g3 c5 d3 f7 g2 h6 d2 c6 g4 h7 g3 c7 Nf6 b6 Ng4 b5 Na6 b7 Bg7 f8Q Nh6 b8Q Bc3 b6 Bb7 c8B Nc7 Ba3 Rg8 Qg7 Qf8 Nh3 g1B h8R g2 Bc5 a4+ Ka3 Bh2 Nf4 g1R Bh3 Rg5 Ne6 Bf4 Qf1 d1B Rh7 Bd5 b7 Bfd2 Rh8 Bc2 Qg6+ Rf5 Qb1 Qg7 Rd1 Be1 Qa7 Rb8 Qb5 Bb1 Qb4+ Ke5 Ra2 Rg5 Bf5 Bg2 f3 Bed2 Nd4 Kf4 Ne6+ Kg3 Qa8 Ng4 Rh4 Nh6 Rg4+ Kh2 Qa6 Ra8 b8B Be1 Bba7 Rb8 Bb7 Kh1 Ba8 Kh2 Rdd4 Kg1 Bd6 Bed2 Bac5 Be1 Qb3 Ba5 Qb4 Bd2 Kb2 a3+ Kb3 Be1 Ka4 Bc3 Rad2 a2 Rc2 a1R+ Ra2 Be4 Ra3 Re1 Rd1+ Kh1 Qac4 Bb1 Qa2 Qf6 Qa1 Qg7 Kb3 Bb6 Ra6 Ba5 Rf4 Kh2 Ka4 Kh1 Rfd4 Kg1 Rg4+
1R1n1N2/b5N1/rb1QnQ1p/P3R3/3qNrk1/2QprB1p/b2P4/Kn2R2Q b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 b4 gxh4 bxa5 c6 Ba3 c5 Bb4 cxb4 g4 Kf7 c4 Kf6 f4 e5 a4 b5 c5 d5 c6 d4 c7 e4 a6 h3 g5+ Ke7 g6 Kf6 a5 b3 a7 d3 g7 b4 Qf3 e3 Kd1 b2 Bg2 b3 Ne2 h6 Re1 Bd7 c8Q Be6 Ng3 Qd4 Qc3 Ne7 g8R Nd5 Qf1 Nc7 Nh5+ Kf7 f6 Bc5 f5 Bb6 Re2 Nc6 Rb8 Re8 Ng7 Nd8 Qf4 Bc4 Qd6 Nce6 Re1 Bd5 Ra4 Bc4 Rb4 Rf8 Rb5 Re8 Re5 Re7 Na3 b1N Kc1 e2 Kb2 Bd5 Nc4 Re8 Rd1 e1B Ka1 Bf2 Rde1 b2+ Ka2 Kg8 f7+ Kh7 f6 Kg6 f8Q Be3 f7 Kf6 Re4 Kg5 Re5+ Kg4 Qfe7 Bg1 Qf6 Re7 f8N Rf7 Qfe7 Rf4 Qf6 Na3 Qcb4 b1R Qc3 Rd1 Kb2 Nb1 Ka1 Rc1 Qc6 Bf2 Nd6 Ba2 Ne4 Bg1 Qd6 Bf2 Rh1 Re1 Rg1 Re2 Re1 Re3 Rb7 Rc8 a8Q Rc6 Rb8 Ba7 Qb7 Ra6 Re2 Na3 Qb1 Bb6 Qh1 Nb1 Re1 Ba7 Ng5 Qa4 Be4 Re2 Bc6 Bfb6 Bg2 Qd4 Ne4 Re3 Bf3+
bnrR4/3P4/QB2B2K/p2n1p2/1kbr1B2/Pn6/r2bq1pR/1QQ1N1BR b - - 0 1 illegal: No possible last move, all moves rejected
2B3Q1/3Qppr1/bn1R1r2/1Prp1kN1/RQ2NPn1/1bn5/q6N/b2N1K1R b - - 0 1 legal: proof: e4 b5 d4 g5 h4 b4 hxg5 d6 d5 Kd7 e5 b3 Bf4 dxe5 d6 Ke6 d7 e4 Bd6 cxd6 axb3 Na6 b4 Nb8 b5 Kf5 Qh5 Ke5 Qd1 Ke6 f4 a5 b4 h5 g4 a4 c4 h4 g6 h3 g7 a3 c5 a2 c6 e3 g5 h2 b6 e2 c7 Nf6 g8R Rh5 g6 Kf5 b5 Ng4 b7 Bg7 Nc3 Ra6 Nf3 Qe8 d8N Nd7 b8Q Nb6 Qa4 Rg5 Rd1 a1R Bh3 Rc1 Qb4 Qd7 Qb7 Qe6 Rf8 Qa2 Ne6 Bf6 g7 d5 g8N Rg7 Rd8 Bd4 Neg5 Be5 Nb1 Rc5 Rd6 Ba1 Qb8 Bb7 Nf6 Bc8 Nfe4 Bb7 Rf1 h1B Nh2 Bf3 Rd4 Bc8 Rh1 Bb7 Nf6 Be4 Qa8 Bc2 Nc3 Bb3 Qg8 Bc8 Nfe4 Bb7 Na4 Bc8 Nb2 Bb7 Kd2 e1N Ke2 Nd3 Kf1 Nc1 Nd1 Ne2 Rc4 Nc3 c8Q+ Nd7 Qa3 Rb6 Ra4 Ba6 Qb4 Rbc6 Qce8 Nb6 Rd7 Rf6 Rd6 Kg6 Qc6 Nh6 Bc8 Ng4 Ne6 Kf5 Qb7 Rh7 Qd7 Rg7 N6g5+
2q5/1pNp1N1R/B1p1R2n/2b1Q3/b2PnRQr/3QN1Q1/6Pk/b1K1nrr1 b - - 0 1 illegal: No proof kernel forced: wxLB
r3q1b1/4b1Nr/Qp2r3/1pB3QR/N2PB2p/2NbBK1n/1Pn2nQ1/k6Q b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 a6 h4 gxh4 a4 Bd7 Ra3 Be6 Rb3 Bc8 Rb5 axb5 Ke2 Kd7 d4 Kd6 f4 e5 g4 c5 g5 h5 g6 c4 a5 h3 a6 h4 f6 e4 a7 h2 f7 e3 f5 c3 g7 b6 f6 c2 Qe1 Be7 f8B Nh6 g8Q Ng4 f7 Qe8 Nc3 Be6 Bg2 Na6 Kf3 e2 Na4 Rh7 Be3 c1N Qf1 e1R Ne2 Bf5 Rg1 h1B Nec3 Nf2 Qg7 Nh3 Qg5 Rd8 a8Q Nb4 Qa6 Ra8 Qe2 Bd3 Rf1 Kc7 d6+ Kc6 d7 Nc2 d8N+ Kd6 Ne6 Kc6 Kg4+ Kd6 Bc6 Bd5 Qg2 B5c4 Ng7 Ba2 Bg1 Re6 Be4 Bb3 Kf3 Bbc4 Bf5 Kc6 Be3 Ba2 Nb1 Kd5 Nbc3+ Kc4 Be4 Kb3 Rg1 Bc4 Qh1 Nd3 Rc1 Ndf2 Qgg2 Bd8 Bc5 Be7 f8Q Bb1 Qf6 Bd5 Nd1 Ka2 Ndc3+ Ka1 Qf4 Re5 Rf1 Bg8 Qfg5 Re6 Ke2 Nd1 Rf5 Ndf2 Kf3 Na3 Qf6 Nf4 Qhh3 Bd3 Rh5 Nc2 Qhh2 N4h3 Qfg5 Bc4 Qhg1+ Bf1 Q1h2 Bd3 Qhh1+
r5QK/3Q3R/1Rb1pn1n/6Qp/N1QN2PP/4B1k1/R1q1pbqr/1n2qN2 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 cxd5 g6 a4 Nf6 axb5 Ng8 Be2 Qd6 Bg4 fxe4 f5 Qd7 f6 Qd8 Bf5 gxf5 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 Kg5 d4+ Kh4 g4 a5 b4 h6 b6 f4 b5 c4 d6 a4 b7 f3 b6 a3 f7 a2 d5 c3 d7 f2 d6 f1Q Qd4 e6 Ne2 c2 Qc4 e3 Nd4 e2 Nd2 Qe8 d8Q+ Kh3 d7 Rh7 Qg5 Qg2 d8Q Bc5 f8Q Bd7 Qd6 Bb5 Q6d7 Qg6 Qf8 Bc6 Qfg7 Na6 b8N Nc7 b7 Nd5 Na6 Ndf6 b8R Ba7 Rb2 Qd3 Rab1 a1N Ra2 Nb3 Nc5 Bb6 Na4 Qg6 Ba3 c1Q Bc5 Qgc2 Qgf7 Qe1 Qfg6 Ne7 Qg8 Nf5 Rbb2 Ba7 Rb1 Na1 Rb6 Nb3 N4f3 Rh8 Be3 Rh7 Nd4 Rh8 Q5g6 Kh4 h3 Kg3 Qg5 Rh7 N2f3 Nd2 Rh2 Nb1 Nd2 Nd5 Rh1 Nb4 Kf6 Nd5+ Kg6 Nf6 h4 h5 Rf1 Rf7 Rf4 Rff8 Rf1 Nh6+ Kg7 Ne4 Kh7 Rf2 Kh8 Nf6 Nb2 Qf3 Na4 Rh2 Rf2 Qg2 Rf1 Ne8 Rf7 Nf6 Rh7 Qef1 Rb3 Qgg1 Nf5+ Kg2 Bf4 Bf2 Rb6 Qe1 Nd4 Qgf1 Be3 Kg3 Qd3 Qg1 Qc4 Qg2 Nf1+
r1n1B2K/4R1N1/3kNp2/n6b/1bqqQ1pq/1pN1Q1PP/3n2N1/r2QB2B b - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 a5 a4 axb4 f4 h5 fxe5 h4 Ra3 Bc5 Rf3 Bf8 g3 h3 Rf2 Ra5 Rg2 hxg2 Bb2 Ra6 Bc1 Ra8 Kf2 Kd7 Ke3 b5 Ke4 c5 Kf5 g5 d4 g4 e4 c4 h3 f6 Kg6 b3 a5 b2 d6 b4 e6+ Kc6 a6 c3 d5+ Kc5 a7 b3 d7 c2 e5 Bg7 e7 Rh4 e8Q Bb7 e6 Nc6 e7 Qa5 d8N Ba6 d6 Be2 d7 Rh7 Nc3 b1N Bd2 c1Q Ne6+ Kd6 d8N Bf8 Ng7 Bc4 Be1+ Nd2 Nge2 g1Q Nde6 Qd4 N2f4 Qg5+ Kf7 Rh8 Ng2 Na5 Be2 Qc2 Bf3 Qh4 Rf1 Bd5 Rf2 Qcd3 Re2 Q3c4 Be4 Rh5 Kg6 Rf5 Re3 Rf1 Re2 Qg5+ Kh7 Rh1 Kh8 Qh4+ Qh5 Rg1 e8B Ne7 Qh6 Nc8 Bf3 Be4 Re3 Bg6 Bfc6 Rb8 a8Q Bh5 Bf3 Be7 Qe4 Ra8 Re2 Bd8 Qhe3 Bb6 Ngf4 Bc5 Bh1 Bb4 Ng2 Nf1 Nc7 Qdd5 Qg6 Qd2 Qeg5 Bc5 Qdb1 Bb4 Re7 Ba3 Bf2 Qe3 Nce6 Nd2 Qge4 Qed4 Qge3 Bb4 Qbc2 Rb1 Be1 Ra1 Qd1
2N1bnKQ/p1p1qr1B/2Pb1R2/3k1b2/4q1n1/1B4Pr/R3p2R/QnR2QB1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 gxh4 Nd2 Ke7 dxe5 Na6 e6 Ke8 e5 Nb8 Ne4 fxe4 Kd2 Ke7 Kc3 h5 Kd4 d5 f4 e3 b4 h3 c4 h2 c5 h4 g3 h3 f5 Qd7 c6 Bb7 f6+ Kd8 e7+ Kc8 e8R+ Qd8 f7 Ne7 b6 Rh7 e6 Nf5+ Ke5 d4 b5 d3 e7 d2 Kf6 Rh8 Ne2 Na6 Nc3 Nc5 Nd5 Ne6 Ra2 Nh6 Bd3 e2 Qf1 d1N Be3 Nc3 Bg1 Nb1 Bh7 Ng4+ Kg6 Bg7 f8Q Be5 Kf7 Bd6 Qg7 Nf8 Qa1 Ba6 Bg6 Rh7+ Kg8 Rf7 Bh7 Rb8 Be3 Bb7 Rg1 h1B Bc5 Nd7 Rf8 h2 e8B Be4 Rg2 h1Q Rh2 Qh4 Bg1 Bf5 Ne7+ Kd8 Nc8 Ba6 b7 Qe4 b6 Bc4 Rc2 Ra8 b8R Qhe7 b7 Bce6 Rc3 Bg6 Rc1 Bef5 Rd1 Rf6 Rf7 Nf8 Rc1 Bh5 Bd7 Rh6 Rf6 Be8 Be6 Rh3 Bb3 Q7e5 Nb6+ Ke7 Rd8 Rc8 b8Q Qc5 Qa8 Rb8 Nc4 Rb4 Nb6 Rc4 Rf7+ Ke6 Nc8 Qce5 Rf6+ Kd5 Qb8 Qe7 Qb6 Q7e5 Qe3 Qe7 Qh6 Qd3 Qg7 Qde4 Qh8 Qg2 Ba4 Be6+ Rf7 Rf4 Bd1 Qe4 Bc2 Kc4 Qa3 Bb4 Rd2 Bd6 Qab2 Rf6 Qa1 Bf5 Ba4+ Nc3 Ra2 Kd5 Rg7 Rf7 Rg6 Nb1 Rf6 Q7e6 Bd1 Qe7 Bb3+
K3b2Q/4R2r/R1k3PQ/6pr/1b1n1nNp/Bqp3q1/2PRR1n1/1Nq3NQ b - - 0 1 illegal: No extended proof kernel
7Q/pr3qRb/P3N2R/3p1BB1/rn3Q1n/k1bp2PB/1n3qbK/B3R1Q1 b - - 0 1 legal: proof: b4 c5 bxc5 g5 d4 e5 g3 exd4 Nd2 h5 Nc4 h4 Ne3 h3 f4 Qc7 fxg5 Qd8 Ng2 hxg2 Kf2 Ke7 a4 b5 c4 d5 h4 f5 e4 f4 h5 f3 e5 d3 e6 b4 a5 b3 a6 b2 c6 Kd6 g6 Kc5 e7 Kb4 e8Q b1N h6 Qd7 g7 Bc5+ Qe3 Na3 h7 Bf8 c7 Ne7 g8R Nf5 c5 Qf7 c6 Nc4 Ne2 Bg7 Kg1 f2+ Kh2 Nh4 Nf4 Bc3 Rg7 Bf5 c8B Nb2 c7 Nc6 Ne6 Rb8 Qf4+ Be4 Bd7 Rb7 c8Q Re8 Rb1 Ka3 h8B Nb4 Qe1 Bg6 Qee3 Re7 Bd2 Be4 Re1 g1Q+ Kh3 Qe8 Nf8 Nf3 Bb5 Na2 Qfg4 Ba5 Rg6 Nc4 Ba1 Bc3 Bd7 Qf7 Rg7 Bh7 Bf5 Re4 Ne6 Nb2 Qh8 Ra4 Qed4 Nb4 Bg5 Nh4 Bg2 f1B Qgf4 Nf3 Qb6 Qe3 Qc5 Qe2 Qg1 Qd2 Kg4 Qe2 Rh6 Qf2 Kh3 Nh4 Kh2 Qg8 Kh1 Qf7 Bgh3 Bg2+ Kh2
Br5N/6k1/N1bq1Q2/bn2r3/2QB1p2/1BppPbn1/K1n1QP1Q/N3R2q b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 d4 gxh4 b4 e5 d6 Qe7 d5 Qg5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 Kd2 h5 Kc2 c5 Kb2 a5 g4 f5 g5 Kf7 g6+ Kf6 b6 a4 b5 a3+ Ka2 c4 g7 h3 b7 c3 d7 d3 b6 h4 d6 h2 Be3 h3 Bg2 Rh7 Bd4+ Kf7 e3 Nc6 b8N Nf6 g8B+ Kg7 b7 Na7 Qe2 Nb5 Nf3 Rh5 Ne5 Ne4 Nd2 Ng3 Re1 h1B Nb3 h2 Na6 Rb8 Na1 f4 Nf7+ Re5 Nh8 Qf6 d8Q Bd7 Bb3 Bc6 d7 Bb4 Qc8 Ba5 d8Q Qd6 Qe6 Bf3 Qc4 Bc6 Bd5 Bf3 Qh4 h1Q Qh2 Rd8 b8Q Rc8 Qb6 Rb8 Kb1 a2+ Kc1 Be8 Ba8 Bec6 Nc2 a1N Kb1 Qh6 Ka2 Qf6 Ncb4 Nc2 Qd8 Nca3 Nc2 Qd6 Na1 Nc2 Qf6+
Q2bkbq1/N3p3/r1Bp2R1/4PR2/2rRQq2/B1B3n1/bPKQp1n1/2B2r2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 h5 axb5 c5 g4 cxd4 gxh5 Ba6 e5 Bb7 Nd2 Bc8 Ne4 fxe4 Kd2 g5 c4 a5 f4 d3 h4 g4 f5 g3 c5 g2 f6 a4 c6 a3 c7 a2 b6 Na6 h6 Kf7 h5 Rh7 b7 Ke8 b8B Ra7 Nf3 g1B Rh4 Rf7 h7 Bf2 h8B Bg3 h6 Bf2 h7 Nc5 Nd4 Nh6 Bg2 Nf5 Nc6 Ne3 Bg7 Ra4 h8Q Rc4 Bh6 d6 Qh7 Bg1 Ba7 Be6 c8Q Bd5 Bf3 Ng2 Qa8 Qc8 Rb1 a1R Rg4 Qd8 Rg6 Ra6 Be3 Bf2 Bd4 Be6 Qe2 e3+ Kd1 d2 Bc3 Qc8 Kc2 Ne4 Bc5 Ng3 Ba3 Qb8 Qd3 e2 Na7 Bb6 Qh4 Bd8 Qhe4 Rh7 Ra1 Rh1 Qdd5 Rf1 f7+ Kd7 Bc5 Qb4 Ra4 Qb8 Ba3 d1Q+ Kb1 Qe1 Kc2 Qf2 Qd2 Qe3 Rb4 Qf4 Ra4 Rcc6 Rd4 Ba2 Qed3 Rc4 Qde4 Bh6 f8R Bg7 Rf5 Bf8 Qed3 Ke8 Bb7 Qc8 Qe4 Qe6 Bd5 Qg8 Bc6+
2K1B2R/2PN1n2/2qqp1bR/4r3/2kp2Qn/QRb5/BpRP4/bn2BrQ1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Nc3 Qc7 Na2 Bg7 axb5 Bh6 b6 Qd8 b5 Bf8 Nb4 cxb4 Ke2 Kf7 Ke3 h5 Kf4 d5 Ke5 a5 f4 a4 g4 a3 c4 b3 b7 d4 b6 h3 c5 h2 f6 h4 c6 a2 f5 h3 c7 Bg7 g5 Qf8 g6+ Ke8 Qg4 Kd7 Nf3 Kc6 Ba3 b2 Bd6 Nd7+ Ke6 Rh5 b8R Nh6 b7 Nf7 Bg3 Kc5 Ne5 Nb6+ Nd7+ Kb4 Rb1 a1B Bb5 Na4 Rbc1 Nc3 Rc2 Nb1 Be1 Qd8 Qg1 Bf8 g7 Ra3 g8B Rf3 Ra8 Rf1 b8R Bb7 Ra3 Ba8 Rg3 Be4 Rg6 Bd3 Rh6 Rg5 Kd5 Rh5 Kc6 Kb3 Kb7 e6 Bh7 Qe7 Kc8 Qa3 Qg4 Bb4 Bg6 Bc3 Bc4+ Ka4 Rb5 Qd6 Ba2 Rg5 Rb3 Be4 Ra3+ Kb4 Rb3+ Kc4 Rh8 Nh6 Be8 Nf7 Rg1 h1N Rg2 Bc6 Rh2 Ng3 Rh1 h2 Rh6 Ne5 f7 Be4 f8Q Nf7 f6 Bg6 Qg8 Re5 Qg7 Nf5 Qg1 Ng5 f7 Nh4 f8Q Nf7 Qg4 Qb6 Qa3 Qd6 Rg1 h1Q Rh8 Qhd5 Rh1 Q5c6 Qg8 Nf5 R1h6 Nh4 Qg1 Bd3 Q8g5 Bg6 Q5g4
1n4nR/1Nkb3N/BB4q1/5B1q/pKN5/2BpQP2/P1rbqnp1/2Q2r1Q b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 hxg4 Nd2 f4 Rb1 Qf6 Rb3 Qd8 Rg3 fxg3 h4 g5 e4 a5 c4 b5 h5 d5 h6 Kd7 c6+ Kc7 f3 d4 c5 g2 h7 b4 e6 a4 e5 b3 e7 g3 e8Q b2 e6 b1Q e7 g4 Nh3 g1N Ba6 g2 Ng5 d3 Nc4 g3 Kd2 Ra7 Kc3 Bh6 Be3 Qa1+ Kb4 Qad4 Rh3 Ne2 Qh1 g1Q Rh2 Qh4 Rh3 Nf6 Rh2 Rg8 h8B Nf4 Nh7 Nh3 Bf2 Rg6 Bg7 Ng8 Bc3 Rg7 Bf6 Qe4 Nf8 Qc1 Qg6 Qg5 e8Q Rb7+ Ka5 Rb2 Bc3 Rc2 Kb4 Qgg4 Qg5 Rg6 Qgc1 Qdg5 Qe6 Kd8 Bfd4 Qe7 c7+ Ke8 Qb6 Bd7 c8N Nf2 Rh3 Bd2 Rh8 Qeh4 c6 Qe2 c7 Qhh5 Nh7 Qgf5 Qc5 Rg5 Qa7 Qfg6 N8d6+ Ke7 Nb7 Ke6 Bf6 Kd5 Qd4+ Kc6 Bd8 Rg4 Qe3 Rh4 Qhf1 Rh1 Qh3 Rf1 Qh1 g2 c8B Be8 Bf5 Bd7 Be7 Kc7 Bc5 Qhg5 Ba7 Q5h5 Bb6+
qn3n1k/Br2pbq1/R1Q1B3/1Q3R2/2R1P1b1/1p3NQ1/1r1n1PKp/B3b2Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 Nc3 g5 hxg5 d6 Nd5 f4 Ne3 fxe3 c4 d5 cxd5 Ra7 Be2 Ra3 Bf1 Ra8 d4 Kf7 g4 Kg7 a4 c5 g6 b5 d6 h5 g5 h4 d7 c4 a5 b3 d5 b2 d6 b1B a6 h3 a7 e2 Nf3 b4 Ra6 h2 Bh3 b3 Bb2+ c3 Be6 Nf6 Ba1 c2 Rg1 Qe8 d8B c1Q d7 Bd3 Bb6 Bc4 d8Q Qb2 Q8d5 Nfd7 Qb5 Rh5 Rg4 Kh8 Rf4 Bh6 Rf5 Qg7 Qb1 Nf8 Qc1 Nc6 Qb1 Rb8 a8Q Rb7 Ba7 Bd7 Qc8 Nb8 Qcc6 Rh3 Nh4 Rd3 Nf3 Rd2 Qd1 Rb2 Qb1 Qe5 g7+ Kh7 g8R Qg7 Qc1 Bc8 Bd7 Bf7 Be6 Qh8 Rg6 Qg7 Ra4 Bd7 Rc4 Kh8 Rgf6 Na6 g6 Qa8 Qf4 Nb8 Qg3 Be3 Qg2 Bb6 Qh1 Rb1+ Kd2 e1N Ke2 Rb2+ Kf1 Bc8 Qc7 Ba5 Qcc6 Nc2 Kg2 Na3 Rc3 Nb1 Rc1 Qh6 Rc4 Nd2 g7+ Kg8 Bd7 Ra2 Qcb6 Nf1 Rfc5 Rb2 Qc7 Kh7 Ra6 Be1 Qcc6 Nd2 Bg4 Qf6 g8Q+ Kh6 Qg5+ Kh7 Qe5 Kh8 Qg3 Qg7 Bh3 Bg4 Re5 Bgh5 Be6 Bg4 Rf5
1R1RQqk1/1NNN1p2/KR1p3P/Qrrr3b/5bp1/3P3B/1n1q4/Qn2nQ2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ba3 Qb6 axb5 Qf6 b6 Qg5 b5 Qd8 Bb4 cxb4 h4 g5 e4 a5 Ke2 g4 Kd3 f3 Kc4 f2 h6 b3 h5 b2 e5 a4 h7 a3 d3 a2 h6 Qf6 b7 Ke7 e6 Qf5 b6 Nc6 b8Q Qa5 b7 Nd4 Nc3 b1N Qe5 Nf6 b8R Nd5 Nb5 Ndc3 Nc7 Nf3 Bh3 Na4 Qf1 Qd2 Kb5 Nb2 c4 Ne1 c5 Ra5+ Kb6 Bb7 c6 Rc5 Nf3 Rg8 h8Q Rg5 Qc3 Rgd5 Qa5 Bg7 Rg1 Be5 Ka7 Bh2 Ne5 Bf4 Qg7 Ba8 Ka6 Rb5 Rb6 Rbc5 Qf6+ Kf8 e7+ Kg8 e8N Rb5 Nd6 Rbc5 Nb7 d6 Nd7 Rb5 Qe2 f1R Qfc3 Rf2 Qf1 Re2 Rg2 Ree5 Re2 Rf5 Re4 Rdc5 Rb4 Rfd5 Qd4 Nc3 Rb1 a1Q Rb3 Qa3 Qda4 Qb4 Qa1 Qd4 Rb4 Qh8 Re4 Qg7 Re8+ Qf8 Rb8 Nf3 Re1 Nb1 Ree8 Ne1 Ne6 Kh8 c7 Kh7 c8Q Kg8 Nbd8 Bc6 Nc7 Ba8 Ne5 Bc6 Nb7 Bd7 Qd8 Bf5 Nd7 Bg6 Qe7 Bh5 Red8 Qf2 Qe5 Qd2 Qe8
1Q1nB3/4R2N/PQ1pk1r1/q2p2p1/1BR5/1K1nbRBR/3P1rQ1/qb2q2n b - - 0 1 legal: proof: f4 h5 g4 e5 gxh5 exf4 b4 a5 bxa5 c6 Nc3 Bd6 Nd5 cxd5 Ba3 Bb4 Bc1 Bf8 c4 Ke7 a4 f5 e4 f3 h4 f4 h6 g6 a6 Nf6 a5 Ne8 h5 Rh7 a7 Ke6 c5 Be7 a6 Nc7 c6 Qf8 e5 Ba3 Qb3 f2+ Kd1 f3 Kc2 Rg7 h7 Bc5 h8Q Qd8 h6 Be3 Bb5 f1N h7 f2 Rh3 Ng3 Ra3 f1Q Nf3 Qe1 Kc3 Nh1 Ng5+ Ke7 e6 d6 Qg8 Nd7 h8B Ne5 Nh7 Nd3 Qb1 Rf7 Be5 Rf2 Kb3 b6 Ba4 b5 Bg3 b4 Qb2 Rb8 a8Q Rb7 Qb8 g5 Qg6 Bd7 Qe4 Be8 Qg2 Bg6 Qd4 Be4 Qb6 Ra7 Kc2 b3+ Kc3 b2 Kb3 b1Q+ Bb2 Nb5 c7 Qa1 c8R Nc7 Bc3 Bg6 Bb4 Rb7 Nf8 Kf6 e7 Ne6 e8R Rg7 Rc2 Be4 Bb5 Rg6 Rc4 Qc7 Re7 Nd8 Be8 Qc5 Ra2 Qa5 Rac2 Kf5 R2c3 Kf6 Nh7+ Kf5 Rf7+ Ke6 Rf3 Nf4 Rc7 Bb1 R3c4 Nd3 Re7+
1RN1n2B/KpQPknr1/3b2p1/1Q1nN3/1PN5/1R5R/Q1p3q1/2rQqb1q b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 a4 b4 d5 cxd5 hxg4 Bc4 Bd7 Bb3 axb3 Ne2 Be6 Ng1 Bc8 Ke2 c5 Kd3 e5 Kc4 b2 Kb5 g6 f4 c4 h4 e4 a4 c3 d4 c2 h5 g3 f6 e3 a5 g2 d6 e2 d5 e1N f7+ Kd7 f5 Nf6 a6 Nc6 a7 Qe7 Kb6 Ne8 h6 Qh4 f6 Ng7 h7 Nf5 Na3 b1Q Nf3 Qb3 Rb1 Qhc4 Rh3 Nd3 Bb2 Bh6 f8Q Nf4 f7 Qbc3 Qg8 Qe2 f8Q Qce1 Nc4 g1Q+ Bd4 Bg7 Rb3 Qh1 Bc3 Rb8 a8N Nd8 Ka7 Be5 Bb2 Ng7 Qf5+ Nge6 Qh5 Nc7 Bd4 Ne8 Bb2 Nf7 Nab6+ Kd8 d7 Bc7 Nfe5 Ke7 d8R Qeg2 d6+ Ke6 Qg7 Nd5 Ba1 Rf8 h8Q Rg8 Qgh7 Rg7 Q8g8 Bd7 Qhe2 Bb5 d7 Ke7 Qh4+ Ndf6 Qf4 Bd6 Bd4 Rc8 Qh5 Rc5 Rb8 Rd5 Bb2 Rd2 Qhf5 Rf2 Qfd3 Rf3 Qd5 Ba6 Qb5 Rf1 Nf3 Rh7 Qg7 Ng8 Qc6 Qe5 Qa1 Qee2 Ncd2 Qe4 Qa2 Bc7 Qd4 Rc1 Qd3 Qe3 Bh8 Ngf6 Qg5 Bd6 Qc7 Bc4 Qb5 Qee1 Ne5 Rg7 Qf3 Bd3 Qd1 Bf1 Ndc4 Nd5 Nc8+
6kN/1QrQ1p2/1p2n3/r5p1/RQq1B3/1PnrQN1K/PbB1Nq2/3b2Bn b - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 Nc3 a3 Rb1 Kd7 Rb2 axb2 Bh3+ Ke7 Bf1 Ke8 Kf2 b1Q Kg2 c5 d4 g5 e4 c4 h4 b6 d6 Ba6 d7+ Ke7 h6 f3+ Kh3 f2 h5 Qe8 d8Q+ Ke6 h7 Bh6 d5+ Ke5 d6 Qc6 d7 Ne7 Qg4 Kf6 e5+ Kg7 e6 Qb2 Qc7 Nd5 d8Q Nd7 e7 Nc5 e8B Ne6 Nce2 c3 Nf3 c2 Qdd7 Qc4 Be3 c1R Qb7 Nc3 Rg1 Rf8 h8N Kg8 Qh4 Rd8 Rg4 Bg7 h6 Qc2 Bg2 f1N Bg1 Ng3 Re4 Be5 Qf4 Nh1 Qe3 Qd2 Rf4 Qe1 Bf1 Qf2 Bg2 Qc7 Ra4 Bd3 Bf1 Bc2 Bg2 Bd1 h7+ Kg7 Qbe4 Qc8 Qb4 Qc4 Qb7 Bf6 Bc6 Rd3 Be4 Ra8 Bf5 Ra5 Bg6 Rd4 Bc2 Rd8 Ne1 Rd3 Be4 Nb5 Nf3 Bb2 Qd7 Nc3 Ba8 Qc5 Ng6 Rd2 Bd3 Nb5 Bd5 Rc4 Bc2 Nc3 Ba8 Qd5 Bc6 Rd3 Bb7 Rc7 Ba8 Kf6 h8Q+ Ng7 Qhh4 Ne6 Qhe4 Kg7 Nh8 Qc4 Qed5 Kg8 Q5c6 Rb7 Qcc7 Rba7 Be4 Rb7 Qcc6 Rc7 Qb7
1rN2K2/q3Q2R/1p2b1p1/7p/4q1QB/QQrNP1BB/2k1nbP1/1r1qn2N b - - 0 1 illegal: No proof kernel
Q3n1rB/Bb1kr1p1/Q1p4N/q1n1qBK1/1Q3N2/1R4P1/p1PN2N1/1r3b1q b - - 1 2 legal: proof: b4 d5 f4 e5 e4 h5 g3 h4 a4 b5 axb5 h3 Ra3 Bd6 Rf3 dxe4 Rf2 e3 Re2 e4 Rg2 Be5 fxe5 hxg2 Ke2 f5 d4 a5 h4 c6 e6 f4 b6 a4 h5 a3 d5 a2 h6 Ra3 h7 Qd6 b7 Ra6 b5 Ne7 b6 Qb4 d6 Qa3 d7+ Kd8 Qd3 Qc3 Nd2 Qa1 Nh3 Ra3 Qa6 Rf8 h8B g1Q Bb2 Rf6 Bd4 Rf8 Bg2 Qh2 Rb1 Nd5 Rb3 Qhh1 Bf3 Nc7 Bg4 Ke7 d8N Rg8 Bf5 Ne8 Nf7 Nd7 b8Q Nc5 Qba8 Bb7 Nh6 Kd6 e7 Qb2 Rb4 Rb3 Rb5 Qba1 Rb4 Rb1 Rb3 Ne6 Bc5+ Kd7 Bd4 Qc3 Bc5 Qa5 Bd4 Nd6 e8N Qe5 Nc7 Ne8 Bg6 Nc5 Ne6 Qc1 Bf5 Qa3 Nf2 Qa5 Nd1 f3+ Ke1 f2+ Ke2 Kd6 Nf4 Ke7 Nb2 Kd6 Nbd3 Ke7 Ne1 Kd6 Kf1 e2+ Kg2 e3 Kh3 f1B+ Neg2 e1Q Kg4 e2 Kg5 Qc1 Be3 e1R Bf2 Qeb2 Bg1 Re7 Be3 Qe5 Bd4 Bc8 b7 Kc7 b8Q+ Kd8 Ne6+ Kd7 Qb4 Bb7 Be3 Bd3 Bd4 Qh1 Bf2 Bf1 Bg1 Na4 Ba7 Nc5 Nef4+
1n2K3/Qr2P1Q1/n4b2/2R4B/1pn3Qn/B1kRpbrN/pnB1Pq2/2RB4 b - - 0 1 illegal: No proof kernel
brQ4Q/1p1n4/qPRRr1P1/3nN2r/rQ3p1R/Nkr2B2/pb2Q3/5K1N b - - 0 1 illegal: Other
3b2bN/4pQ2/1pkBN1Qr/1B2qP1N/1rpr2Q1/B4K1n/1P6/rNn3rR b - - 0 1 illegal: No proof kernel
5RnB/br3Q1N/1Q6/1P2N3/bK2QBBp/1b3prq/2pnkP2/nn4QN b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 d4 gxh4 b4 e5 d6 Qe7 d5 Qg5 Ra3 Qf6 Rd3 Qd8 Rd4 exd4 Kd2 Kd7 e4 a5 g4 f5 b6 h5 g5 c5 e5 d3 Kc3 f4 g6 d2 b7 a4 g7 c4 Rh2 a3 Rh3 a2 Rh1 a1N Nf3 h3 Ng5 h2 Bb2 Na6 b8B Nc5 Nh7 Ra7 Be2 Rb7 Qg1 Qh4 b5 d1N+ Kb4 c3 Nd2 c2 Bc7 Ncb3 Nf1 Nd2 Ng3 Nc3 Bf3 Ncb1 e6+ Ke8 e7 Kf7 d7 Kg6 d8Q Be6 d6 Bb3 d7 Ba4 Bg4 Qh3 Qb8 h4 d8N Kh6 Nf7+ Kg6 Ne5+ Kh6 Nf6 Kg5 Bd6 Rh6 e8Q Rg6 Qc7 Be7 Qb6 Bd8 Bc3 Bc7 Qec6 Bb8 Qe4 Ba7 Bd4 Ne7 g8Q Rg7 Qe6 Ng8 Qf7 Rg6 Qge1 Rg7 Rf1 h1B Rg1 Bf3 Qc1 Be2 Rd1 Bc4 Nh1 Bcb3 Re1 f3 Re3 Rg6 Qg1 Rg7 Rc3 Rg6 Rc8 Rg7 Qec6 Kf4 Rf8 Rg5 Qce8 Rg6 Nh7+ Ke4 Nc4+ Kd3 Bf4 Rg5 Bh8 Rg7 Ne5+ Ke2 Be6 Rg3 Bg4 Nh6 Qec6 Ng8 Qe4+
2rbr3/K1Q1Qr2/1r1ppn2/3B2Q1/1RR1Pnk1/Rp1Pb3/1bq5/1RNN3N b - - 0 2 legal: proof: b4 c5 a4 b5 axb5 f5 g4 fxg4 b6 Bb7 b5 Ba6 Ba3 Bc8 h3 g5 Ra2 g3 Qc1 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Qd1 Bf3 Bb4 Bg4 hxg4 cxb4 f4 Kf7 c4 Kf6 e4 h5 Ke2 a5 Ke3 e6 Kd4 h4 f5 Kg5 c5 b3 f6 h3 c6 a4 c7 h2 c8R a3 f7 a2 b7 Bb4 f8Q Rh7 b6 Rh3 Bc4 Ra3 d3 Qe7 Nc3 Nf6 Nge2 g1R Bd5 g2 Nc1 Nh5 Qd2+ Nf4 Nd1 Rf3 Rc4 Ba5 Qd8 Kh4 g5 Kg4 g6 d6 g7 Qg5 g8N Nd7 b8R Nf6 b7 Bc7 Ne7 Ra6 Qe8 Rb6 Nf5 Bd8 Qe7 Rgf1 Qe3 g1B Ng3 R1f2 Rb1 Rc2 Ra1 Bf2 Rg1 Qh4 Nh1+ Qg3 Rb1 Qg2 Re1 Rc3 Re2 a1B Ra2 Bb2 Ra5 Be1 Ra3 Qc2 Qg1+ Kh3 Qg5 Bd2 Rba8 Rf1 b8Q Rf2 Rb4 Rf1 R8a4 Rc8+ Nc3 Rf2 Qbc7 Be3+ Kc4 Rf1 Rb5 Rf3 Kb4 Rf2 Ka5 Rf1 Rc4 Rf2 Ng3 h1R Nd1 Rg1 Nh1 Rgg2 Qe5 Rg8 Qg5 Re8 Rbb4 Rb5+ Ka6 Rb6+ Ka7 Rf3 Qe5 Kg4 Rba1 Rh3 Rb1 Rh7 Bb7 Rg7 Bd5 Rf7 Qg5+
3r3N/pQBrk2q/b2R1n2/P1Q1r3/p2BnRBb/K2p1R2/2Pb3Q/2Br4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Qb6 a5 Qc7 Nc3 Qd8 Na4 bxa4 Kd2 g5 h4 d5 b4 e5 f4 g4 f6 d3 Kc3 d2 Kb2 d4 f7+ Kd7 b5 g3 f5 e4 b6 d3 b7 e3 h6 e2 f6 e1R h7 g2 h5 Re7 h6 Bg7 f8Q Qe8 Nf3 g1B Ka3 Qg6 f7 Qg4 Ne5+ Kd6 Ng6 Bf6 Qf3 d1R Be2 Na6 b8B+ Kd7 Bc7 Qe6 Qb7 Qf5 Bg4 Re5 Qc5 Be3 f8R Bh4 Rd8+ Ke6 Rh3 Nf6 Rf3 Bd2 Rd6+ Kf7 Rb1 Rd8 h8B Rd7 h7 Ke8 Rb4 Kf7 Nf8 Ke7 Rbf4 Qg6 Bg7 Qh6 h8Q Qh7 Qd4 Nc5 Ng6+ Kf7 Qc3 Ne4 Qc5 Rb8 Qbb6 Ba6 Qb7 Qh6 Qh7 Rbd8 Nh8+ Ke7 Qg6 Qh7 Qh6 Rg5 Qh5 Ng8 Bd4 Ngf6 Qh6 Re5 Qh5 Bhe1 Qh3 Bh4 Qh2
1Q1r4/4rQ1p/1Rp2P2/5BBn/kR2bNQP/2pn1B1b/3bq1r1/1K3bRR b - - 0 1 legal: proof: e4 a5 c4 f5 f4 g5 b4 d5 bxa5 dxc4 Nc3 Be6 Nce2 Kd7 exf5 Ke8 f6 Bd7 f5 Bc8 Nf4 gxf4 h4 Kd7 a4 Kc6 d4 b5 Kd2 e5 Kc2 f3 g4 e4 d5+ Kc5 f7 Kb4 g5 c3 g6 f2 g7 e3 f6 e2 d6 e1R d7 Be7 f8R Qe8 d8Q Nd7 a6 Nc5 a7 Bh3 a5 Nh6 g8Q Nd3 a6 Nf5 Qf7 Ng3 Bg5 Nh5 Kb1 Rg8 Qb8 Re3 Bg2 f1B Ne2 c6 Nf4 Bd6 Qg4 Re7 Bf3 Bc5 Rg1 Be3 Rh1 Bd2 Ra4+ Kc5 Rb4 Rg7 Rg8 Rg6 Qb7 Rd8 a8B Rg7 a7 Rg6 Re4 b4 Qb8 b3 Bb7 Kb5 a8R b2 Ra6 Rg7 Rb6+ Ka5 Re2 Ka4 Bc8 Rg6 Bf5 Rg7 Ka2 b1B+ Ka1 Ne5 Re1 Be4 Reb1 Nd3 R1b3 Qd7 Rb2 Qe6 Kb1 Qe5 Ne6 Qh2 Nf4 Qe2 R2b4+ Ka3 Qg2 Rb7 Bh6 Rc7 Qf2 Rg1 Qg3 Re7 Rg4 Rg2 Bg5 Rh2 Ne6 Rf2 Qgf4 Rh2 Rgg1 Rf2 Qg4 Rg2 Rb2 Ka4 Nf4 Re5 R2b3 Re7 R3b4+
NQ2k2K/NbB2p1p/1r2N2r/4r2q/1P1Bp1nP/b3bQ1r/B3R1QN/5n2 b - - 0 1 legal: proof: e4 b5 b4 g5 f4 d5 fxg5 dxe4 a3 c5 Ra2 c4 Rb2 Bh6 a4 Bf8 Rb3 cxb3 axb5 Qd5 Bb2 Qd4 Bc1 Qd8 Kf2 a5 Ke3 e5 d4 a4 h4 a3 c4 b2 g4 a2 g6 a1R c5 Bd6 c6 R1a6 b6 Ra3+ Nc3 b1R g5 R8a7 d5 Ba6 b7 Ra5 g7 Rb3 g6 Qc8 c7 Rc5 Bc4 Ne7 g8Q+ Kd7 g7 Nbc6 b8B Qd8 c8N Qa5 Bb2 Nf5+ Kf2 e3+ Kf3 e4+ Kg4 e2 Kg5 e1B Kf6 Ra8 Nf3 Ncd4 Na4 Bd2 Rh2 Ng3 Bc7 Ndf5 Bd4 Bc1 Rc2 Rb8 Na7 Nf1 Nh2 Rh3 Qf3 Bdf4 Re2 Ba3 Ba2 N5e3 Qf8 Rc4 g8Q Rc6+ Kg7 Rh6 Qc8+ Ke7 Nb6 Rb7 Na8 Rbb6 Qcg4 Bb7 Qb8 Re8 Qg5+ Kd7 Qgg2 Re7 Kh8 Ng4 d6 Qh5 Bd8 Ke8 d7+ Kf8 Bc7+ Re8 d8N Re5 Be6 Ke8 Ba2 Be3 Ne6+
3rnbB1/3R1n2/1rb1qBNR/2RB1Qp1/pn6/kpK5/P1Q2RP1/1Qb3n1 b - - 0 2 legal: proof: e4 e5 b4 c5 bxc5 f5 d4 Qh4 Nc3 Qxh2 dxe5 Ne7 e6 Ng8 e5 Ne7 Ne4 fxe4 Ke2 Ng8 Kd2 Qf4+ Ke1 Qh2 f4 Ke7 Kd2 d5 c4 h5 c6 b5 f5 g5 c7 a5 c5 a4 c6 h4 Qf3 e3+ Kc2 d4 Qh5 d3+ Kc3 b4+ Kc4 h3 Bd2 e2 Qg4 e1B Rd1 b3 Bc3 d2 Nf3 Nd7 Nh4 Bb7 c8Q Ndf6 c7 Rh6 Be2 Be4 Bf3 Bc6 Bd5 Ne8 Bb2 Rg6 Kc3 Nh6 Qe4 Nf7 Qb1 Bf2 Rhf1 Be3 Rf2 Qg1 Ba1 h2 Bb2 h1N Ba1 Bg7 f6+ Kf8 Bb2 Ng3 Ba1 Qe1 e7+ Kg8 e6 Bf8 Bb2 Rh6 Ng6 Ne2+ Kd3 Ng1 Kc3 Rb8 Ba1 Rh8 Bb2 Rb6 Ba1 Ned6 e8R Bf4 e7 Qe6 Rd8 Ne8 Rd7 Be3 Re1 Bf4 Re4 Be3 Rh4 d1N+ Kd3 Nc3 Rh6 Bc1 Kc4 Ne4 Bb2 Nc5 Kc3 Nd3 Ba1 Ned6 e8R Nb4 Ree7 Qg4 Re5 Qe6 Ref5 Ne8 Bb2 Nd8 f7+ Kg7 Bf3 Rg8 Rc5 Kf6 Bd5+ Qf5 Nf4+ Ke5 Ba1 Qe6 Bb2 Be7 f8Q Bd6 Qf7 Bf8 Qfg6 Rh8 Qgc2 Rg8 Re7 Kd6 Ng6 Nf7 Ba1 Qe2 Q8f5 Qe6 c8B Ba8 Rcc7 Bc6 Red7+ Kc5 Ba6 Rh8 Bac4 Na6 Kd3 Kb4 Bf6 Ka3 Kc3 Nb4 Rc8 Bb5 Rc5 Bc6 Be5 Rg8 Bf6 Nd8 Bh8 Nc7 Rd6 Qe1+ Kd4 Rg7 Be6 Ne8 Bcd5 Rd7 Bg8 Qe6 Kc3 Nf7 Bf6 Rd8 Rd7
1NBqq1R1/P3n3/p3npQk/P2QR3/pQ1rb1bK/2r2b2/RN4N1/2b1N3 b - - 0 1 illegal: No proof kernel
4K2N/7p/2rb2p1/1n1pB1Q1/q1Rr1qPn/2PBRRQr/1B4r1/k2B1b1Q b - - 0 1 illegal: No proof kernel
Q1r2Q1N/p2bb2r/r4R2/3pp3/nN1r1R1q/n4KB1/P2PRQNq/1Q5k b - - 0 2 legal: proof: f4 c5 g4 h5 b4 g6 bxc5 g5 e4 f6 Be2 f5 exf5 gxf4 g5 Kf7 Bf3 Ke8 Bg4 hxg4 Kf2 Kf7 c4 b5 h4 d5 c6 e6 c5 b4 f6 Kg6 c7 Kh5 c6 f3 f7 b3 g6 b2 g7 Nh6 g8R Bd7 c8Q Nf5 c7 Ne3 Na3 b1R Bb2 Nc4 Nh3 Na6 Rf1 Nc5 Nc2 Na3 Rg6 Na4 Be5 Rb6 Nb4 g3+ Ke3 Qg5+ Nf4+ Kg4 h5 g2 h6 Kg3 h7 Be7 f8Q Kh2 Rf6 g1Q+ Rf2+ Q1g2 Re2 f2 Qb7 f1R c8Q Rh1 Qc5 Rc8 Qa8 Ra6 Rb1 Rg8 h8N Rg7 Qb3 Rh7 Rf1 Rg1 Bb8 Qh4 Qb1 Kh1 Bc7 Qgh2 Rff2 Rc1 Ng2 Rf1 Bg3 e5 Qb6 Rfc1 R2f4 Rc4 Kf3 Rc8 Ne1 R1c4 Qf2 Rd4 Ng2+
R3qq1b/Npn1Q3/2Bn1p2/1Rp2Q1q/1RB1QBb1/1b3k2/1P3Pn1/K4R1r b - - 0 1 illegal: No possible last move, all moves rejected
2r3q1/3Bn1pq/1pqr1B2/p1Q1K3/1R1Q1B2/1brQ2k1/P1R1RnPR/r3N3 b - - 0 1 illegal: No proof kernel
Q2rrBQ1/R4Nr1/B2p2r1/p1p3Q1/BRP1bn2/2rPn3/k1Bb2r1/2R4K b - - 0 1 legal: proof: g4 e5 h4 b5 f4 exf4 a4 g5 axb5 Qf6 h5 Qg6 hxg6 Kd8 Nc3 Ke8 Nd5 f3 Nf4 gxf4 g5 Bc5 Rb1 Bb4 Ra1 Bf8 Kf2 Ke7 b4 Kd6 c4 a5 e4 h5 d3 f5 g7 h4 b6 h3 b5 Kc5 g6 Kb4 b7 c5 b6 d6 e5 h2 e6 Nc6 b8R Nge7 g8Q Nd8 b7 Bh6 g7 Nd5 e7 Ne3 e8B Ne6 Qe1+ Kb3 Rb1+ Ka2 Qc3 Bd7 Rc8 Bc6 b8Q Be4 Rc7 Ra7 Ke1 f2+ Ke2 Rb7 Qa8 Rb3 Qd4 Rc3 Qdd5 Rh7 Bg2 f1R Bf3 Re1+ Kf2 Bg5 Be2 f3 Ba4 f4 Nh3 Rh6 Bd2 Rg6 Rb4 Rg1 Ra7 Rg2+ Ke1 Bh6 Bed1 f2+ Ke2 Bg5 Bdc2 Bh6 Rhb1 h1R Ng5 Rhg1 Nf7 Bg5 Bc1 Bh6 Qg5 f3+ Kd2 Nf4 Bb2 Rg4 Rc1 f1R Ba1 f2 Bb2 Nh3 Ke2 Rd1 Ba1 f1R Bb2 Rff6 Ba1 Nf4+ Kf2 Rde1 Bb2 Ra3 Ba1 Re6 Bf6 R4g3 Be7 Rc3 Bf8 Re5 Qh7 Re7 g8B Rd7 Qh8 Rd8 Bh7 Rg8 Bf5 Rg7 Bc8 Rg4 Qg8 R1g3 Qf5 R4g6 Ba6 R3g5 Qg4 Re2+ Kg1 Rg2+ Kh1 Re5 Qh4 Ree8 Qh5 Ng4 Rb3 Nh3 Rc7 Bd2 Ra7 Ne3 Rb4 Nf4 Qg5
3r1b2/k1b4n/1pRqrp1n/2N5/1P2pPB1/1KNrR2p/QQ2NNR1/Q4n2 b - - 0 2 legal: proof: c4 g5 h4 gxh4 d4 d5 cxd5 b6 e4 Kd7 d6 Ke6 d7 Kf6 d5 a5 b3 a4 d6 a3 Bb2+ axb2 Qh5 Bb7 Qd1 Bd5 exd5 Ra4 Nh3 Ra5 Ng1 Ra8 Kd2 Ke5 Kc3 c5 a4 h5 f4+ Ke4 g4 e5 g5 f6 b4 h3 a5 c4 a6 h4 a7 h2 g6 h3 g7 Na6 Ra2 Rb8 a8Q Nc5 Be2 Nh6 g8N Ne6 Bg4 Ng5 Ne2 Nh7 Re1 h1N Qd2 Qc7 d8R Ng3 d7 Qd6 Rc8 Nf1 Rc6 Re8 d8N Re6 Kc2 c3 Kb3 c2 Nb7 c1B Qd1 Ke3 Nbc3 e4 Nc5 b1R+ Rb2 Ra1 Qa2 Bd2 Qc2 Rd1 Qcb1 Bc1 Qba1 Rd3 Rc2 Bb2 Rd2 Qe5 d6 Qd4 d7 Qd6 Ng3+ Kd4 d8Q Bg7 Rg2 Bf8 Ne7 Rg8 Nd5 Rh8 Qda8 Rg8 Nh1 Rh8 Q2b1 Rg8 Ka4 Kc4 Ne2 Be5 Ndc3 Rh8 Ka3 Rg8 Ka2 Rh8 Qbb2 Rg8 Nb1 Kb5 Nf2 Rh8 Qc3 Rg8 Kb3 Rh8 Q8a2 Rg8 Na4 Ka6 Q1b2 Ka7 Qba1 Rd1 Qcb2 Rd3+ Nbc3 Qd5+ Ka3 Bc7 Nc5 Qd7 Ng1 Qd6 Re3 Be7 Ne2 Rd8 Ka4 Bf8 Kb3+
rr1Q4/1p3nN1/1k2Kb2/5pBR/QNr2qn1/1P3P1Q/2ppB3/bN1nB2B b - - 0 2 legal: proof: g4 h5 d4 hxg4 b3 a5 Nc3 e5 dxe5 a4 Nb1 a3 c4 d5 Nd2 d4 Rb1 Bf5 Rb2 axb2 a3 Be6 a4 Bd5 cxd5 Qg5 Ne4 Qf6 Nd2 Qd8 e4 Kd7 Ke2 b1R Kd3 g5 Kc4 c5 h4 Kc7 d6+ Kb6 Kd5 f5 d7 g3 a5+ Kc7 h5 g2 a6 d3 a7 g4 e6 g3 e5 c4 e7 c3 e8B c2 e6 Bd6 e7 Nh6 Nh3 g1B Qg4 g2 Ke6 Kb6 Nf4 Bc7 Qh3 Nf7 h6 Nc6 h7 Be5 Be2 Qc7 d8Q Ra1 Nb1 Ra4 Bd2 Bd4 Be1 d2 Nd3 Ba1 Nb4 Nce5 Bc6 Ng4 e8N Bh2 Bd5 g1N Ng7 Bhe5 Bg2 Rf8 h8B Bf6 f3 Rb8 a8Q Re8+ Qe7 Qf4 Rh2 Rec8 Bh1 Rc4 Qe8 Ra2 Qaa4 Ra3 Qh7 Ra2 Rh5 Nh3 Qh6 Nhf2 Qd8+ Rc7 Rg5 Ra3 Qh3 Nd1 Rh5 Ra2 Ne8 Ra3 Bg7 Ra2 Bh6 Ra3 Bg5 Ra2 Qc8 Rc4 Ng7 Ra3 Qad7 Ra5 Qa4 Raa8 Qd8+
2B2rR1/p1Bp4/3b2b1/NrqQ3r/1n1P1p2/2kn2Bp/RP2BQ1b/K3RQ2 b - - 0 1 illegal: Other
8/R1q2B2/1B1bKBrp/PNr1pnpQ/n5QQ/3RR2n/1rp4P/3k1B1b b - - 0 1 illegal: No possible last move
3Q4/Ppb1r3/B1np4/1QBRR3/qnR1bk1p/1b1Nr1pK/B1rPQ3/6B1 b - - 0 1 illegal: No proof kernel
r3Nbn1/2R1pP2/N2r1p2/2q1Q1Bk/Q2BKpnr/Nb1B4/nQ1pP3/3N4 b - - 0 1 illegal: No proof kernel
rR1Nb1qR/q1QQ4/2pp4/2p2rp1/1bP2R2/1Nk1KRnB/P2Q4/q1N1n3 b - - 0 1 illegal: No proof kernel
5Qn1/Np2nN2/2p2Rpk/1rqp2nr/1N2BR1b/3P1nR1/b1QP2K1/4QN2 b - - 0 1 illegal: No possible last move
nq2rQnK/2bp2N1/1R1p3B/b2N2n1/2bP3p/1N1BB1pB/b5Pk/QQ6 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 e5 a4 exf4 Ra3 b5 axb5 g4 Rd3 Ra6 Rd5 Rg6 Rd6 Rg5 hxg5 cxd6 Kf2 Ke7 c4 Ke6 e4 Ke5 c5 h5 c6 f5 c7 h4 b6 f3 Ke3 f2 b5 g3 g6 a4 g7 a3 b7 a2 b6 a1B Bd3 f1B Nc3 Rh7 Nd5 Rh6 Ne2 Be7 Nd4 Bb2 Nb3 Na6 b8Q Bb7 c8Q f4+ Kf3 Rh5 Kg4 f3 Qa7 Ba8 b7 f2 b8B Nc7 Qa1 Bc3 Ba7 Rh8 Be3 Bc6 Qc2 Na8 Qcb1 Bb5 Bh6 Bc4 Kh5 Qb6 Kg6 Qb8 Qf8 Bd8 Be3 Bc7 Rg1 Be2 Re1 f1N Kf7 Ne7 g8B Nh2 Kg7 Nf3 Be6 Ng8 Bh3 Ng5 Rg1 Bh5 Rf1 Bf7 Rf3 Rh6 Rf4 Re6 Kh8 Re8 Rg4 Ke6+ e5 B3a5 Bf2 Ne4 Be3 Kf5 e6 Qc8 e7 Qb8 Nc3 Ke5 Bh6 Ng5 Rf4 Bfe6 Rd4 Bf7 Rd5+ Kf4 Rb5 Rd8 e8N Rc8 Ng7 Re8 Bdf5 Bfe6 Rb6 Bf7 Ba3 Bfd5 d4 Ke3 Bc1+ Kf2 Bg6+ Kg1 Be3+ Kh2 Bd3 Be6 Nd5 Bf7 Nc1 Ba2 Nb3 Be6 Nf4 Bc4 Nd5
BN1K3k/n1p1rb2/q1P3N1/1b5p/3Q1p1P/1R1pQR2/Q2pnrRN/1Rb5 b - - 1 2 legal: proof: d4 a5 b4 e5 a4 exd4 f4 g5 fxg5 b6 b5 Ne7 Bd2 Ng8 Bb4 axb4 a5 Nc6 axb6 Nb8 Kd2 f5 Kd3 Kf7 Kc4 Kg7 Kd5 h5 e4 d3 c4 d6 g4 b3 h4 b2 e5 f4 g6 Be7 c5 Nh6 g5 Qd7 e6 Ng8 b7 Bf6 b6 Ra6 e7 Ra8 e8Q Ra6 Rh3 Ra2 Qe3 Ra5 Nd2 b1B Nc4 Qe8 Rf3 Nh6 Ne5 Nf5 Bg2 Nc6 b8R Nfd4 b7 Ra2 Qa4 Kg8 g7 Ne2 Qad4 Rh7 Bh1 Bc2 Rb1 Bd7 Rb3 Qf8 Rb1 Be8 Ke6 Bf7+ Kd7 d5 Bg2 Ba4 Bh1 Rh8 Bg2 Kh7 g8R Qd6+ Kc8 Bb5 g6+ Kh6 g7 Kh7 Rb3 Be7 Rb1 Qg6 Bh1 Bf8 Bg2 Na7+ Kd8 Qb6 Rff1 Qa6 Ngf3 Bd6 Nh2 Rd2 Rf3 Rb2 Bh3 Rc2 c6 Ba3 Bc8 Bc1 Rf8 Kh6 g8Q Rh7 Qg2 Rg7 Rg8 Kh7 Qgf2 Rg5 Rg6 Kh8 Rg7 Rg1 Rg2 Re1 Rb3 Ng1 Qfd2 Ra2 Qa5 Rf2 Qa2 d2 Ra8 Bc4 b8N Ne2 Bb7 Bd3 Nbd7 Bb5 Rb8 Qa3 Ba8 Qa6 Qb6 d4 Qc5 d3 Qcd4 Bg8 Rb7 Bf7 Nb8 Rh1 Nf1 Rh3 Nh2 Rg3 Rb1 Rg6 Rb3 Re6 Rb6 Re7 Rb1 Ba4 R6b3 Bb5 Ng6+
4RN2/1BN4p/r1p1Kn2/n1p1Q3/bqB2NQQ/kpP1b3/6Pp/rB2b1B1 b - - 0 1 legal: proof: e4 a5 a4 g5 h4 f5 exf5 gxh4 b4 d6 bxa5 Na6 Ra3 Nb8 Rc3 Nf6 Rc6 Ng8 Rc5 dxc5 Ke2 Kd7 Kd3 Kd6 Ke4 e5 f4 b5 d4 h3 a6 h2 f6 b4 a5 b3 a7 Qe7 d5 Bg7 f5 Nd7 a6 Rb8 a8B Qf8 c3 Rb4+ Bc4 Ne7 a7 Rg8 f7 Bf6 Nh3 Nc6 Bb7 Rg6 a8B Qh8 f8Q+ Ne7 Qg4 Ra4 Re1 Ra1 Qe8 Bg5 f6 Nc6 Kf5 e4 f7 e3 f8N e2 Na3 Qd4 Be3 Na5 Bg1 Be3 Nf4 Re6 Qeh5 Nf6 Qhg5 Bd7 Nb5+ Ke7 Q5h5 Be8 Qhg5 Ra6 d6+ Kd8 d7 Ke7 Be6 Qb4 Bc4 Kd8 Be4 Ke7 Bab7 Kd8 Rc1 e1B Bb1 Ke7 Na7 Kd6 d8Q+ Nd7 Qb8 Nf6 Q5h4 Ba4 Qe8 c6 Rc2 Kc7 Re2 Kb6 Nb5 Qa3 Nc7 Qb4 Bd5 Ra3 Qe5 Ra1 Ne8 Kb5 Ke6 B3f2 Re4 Be3 Nc7+ Kb6 Qd6 Bb5 Kf5 Bc4 Ne8 Kb5 Nc7+ Ka4 Re8 Bb5 Bc4 Ka3 Qe5 Ba4 Ke6
2R1rn1K/p2b2B1/Bq2k1r1/1pBpb1R1/1p1P2R1/1QN5/1Pqn2p1/4QQ1R b - - 0 2 legal: proof: e4 f5 exf5 h5 g4 c5 a3 Qa5 Nc3 Qa4 gxh5 Qxa3 Nd5 Qa2 Nb4 cxb4 Ke2 Kf7 Kd3 d5 Kd4 g5 Ke5 e6 d4 g4 h4 g3 c4 b6 f4 Qb3 h6 Qd3 h7 Qc3 c5 Qe1+ Ne2 Be7 f6 Bf8 f5 Bh6 h5 Ne7 c6 Bg7 c7 Qd2 h6 Qe1 Qb3 Qd2 Nc3 Re8 h8Q Qh2 h7 Qc2 Ba6 b5 Bh6 Bd7 c8R Ng8 Rh5 g2 Rg5 Rf8 Rh1 Re8 Kf4 e5+ Kg4 e4 Kh5 Bf8 Bg7 e3 Rh4 e2 Rhg4 Ne7 Kh6 Nec6 Rd8 Re6 Rc8 Bd6 Qd8 e1Q h8R Re8 Kh7 Qe6 Qa5 Bf4 Qa1 Na5 Qe1 Qc6 Rg8 Qc5 Kh8 Qb6 Rh4 Nc4 Rh1 Nd2 Rg4 Be6 Rg5 Nd7 Rg4 Nf8 Rg5 Rd8 Rg4 Ke8 f7+ Kd7 f6 Re8 Rg5 Be5 Rg4 Nh7 f8Q Bf5 f7 Ke6 Qc5 Nf8 Qcc4 Rb8 Qcf1 Rb7 Rg5 Rc7 Rg4 Rc6 Rg5 Ke7 Rg4 Bd7 Rg5 Rg6 Rg4 Nh7 f8B+ Ke6 Be7 Nf8 Bc5 Rf6 Bh6 Rg6+ Rg7 Rf6 R7g5 Rg6+ Bg7
3N1qk1/r3R1b1/Br2B2N/3P2BP/n2nK1b1/n5R1/nR1N1q2/5rNN b - - 0 1 legal: proof: b4 b5 e4 d5 exd5 f5 c4 c5 g4 a5 gxf5 h5 Qg4 hxg4 cxb5 axb4 a4 c4 a5 Ra6 Bxc4 Ra7 Bf1 Ra8 Ke2 Kf7 Kd3 e5 f4 g5 h4 b3 a6 b2 d6 g3 h5 g4 a7 g2 b6 g3 d7 Rh7 b7 Bc5 f6 Qb6 d8N+ Kf8 f5 Rh6 f7 Na6 b8R Nf6 Ra3 Nd5 Ke4 Nab4 d4 Na2 Ba6 Qb4 Bg5 Nb6 Nd2 b1N Rh3 Na4 Re3 Qa3 Rb2 Rb6 d5 Kg7 f8N Bd4 f6+ Kg8 Nh7 Qf8 Nf7 Bg4 Bc8 Na3 Be6 Rc8 a8B Rc7 Re2 Ra7 Bb7 Bc3 Ba6 Bd4 Ngf3 g1R Re1 g2 Rg3 Rf1 Ng1 Bc3 Kd3 Rab7 Bf5 Rf2 Nh8 Rg7 Nh3 Ra7 f7+ Kg7 Ree3 g1N Nf6 Qe7 f8N Rf1 Nf7 Ne2 Nfe4 Kg8 Ne6 Qf8 Nef2 Bd4 Ng1 Bc3 Ref3 e4+ Ke3 Bg7 Ned8 Nd4 Nh1 Rb3+ Kf4 e3 Bd7 e2 Bdc8 Rb1 Re3 e1Q Re7 Qf2+ Ke4 Rf1 Be6 Rb6 Nh6+
1n2k3/5r2/2BNN1R1/NPKR2qn/rn3bq1/3q4/Pn1R3N/1N2BbB1 b - - 0 1 illegal: No possible last move
3NR2n/nbkb2n1/B2B1r2/KBP3B1/1Rb2N2/R6B/n3n1P1/n2n2N1 b - - 0 1 legal: proof: e4 b5 a4 e5 axb5 d5 d4 c5 f4 cxd4 Be3 d3 Bd2 d4 Bc1 Qd5 exd5 Bd7 Kf2 Bf5 Ke1 Bc8 h4 g5 Ra5 e4 Ra3 a5 Ra1 Bg7 Qd2 Be5 fxe5 Ra6 Qf4 gxf4 Ra3 Rg6 Ra1 Rg5 hxg5 Kd8 Nd2 Ke7 Nb1 Ke8 Kd2 Kd8 b4 f5 c4 h5 e6 h4 d6 f3 b6 h3 b7 e3+ Ke1 h2 b5 d2+ Kd1 e2+ Kc2 d1N Kb3 e1N Ka4 f2 d7 d3 g6 f4 g7 d2 c5 f3 b6 Ne3 Nh3 d1N Nf4 Nh6 g8B Nd3 Nc3 Nef5 Bh7 Ng7 Nh3 Rf8 Be2 f1B Kb5 a4 Bg5+ Rf6 Rb1 f2 Rb4 a3 Ng1 a2 Ka5 a1N Nd5 Nc1 Bf5 Nf7 Bh3 Na2 Nf4 Nh8 Bb5 Bc4 Ba6 Ke7 d8N f1B Nh5 Ke8 e7 Bd7 Nf4 Nc6+ Ka4 Re6 b8R Na7+ Ka5 Rf6 b7 Bd5 Ra8 Bfc4 b8B Bb7 Bd6 Nf7 Nf3 Nh8 Re1 h1N Ng1 Ng3 Re3 Ne2 Ra3 Bde6 Nf7+ Kd7 Re8 Bf5 Nd8 Bfe6 Rg8 Kc8 e8B Bg4 Beb5 Bd7 Be7 Kb8 Re8 Kc7 Bd6+
3BRb2/2N1PrNN/1k1Bp1R1/2B2pn1/2P5/4q3/qBKn1rnB/R5q1 b - - 0 1 legal: proof: d4 a5 g4 b5 a4 h5 axb5 c5 gxh5 a4 dxc5 a3 b3 Ba6 b6 Bb5 f4 e6 f5 Qc8 f6 Rh6 Qd3 Qd8 Qf5 Ba4 bxa4 Rh8 e4 Nh6 e5 Ng8 Bc4 exf5 e6 Ra5 e7 Ra8 Be6 fxe6 Bf4 Kf7 Bd2 Qc7 Bc1 Qd8 Kd1 Ke8 c4 g5 h4 d5 c6 g4 b7 g3 c7 Kd7 c8N Kc6 a5 a2 f7 g2 a6 d4 a7 d3 h6 d2 h5 Kc5 h7 Qd5 h6 Qd3 Nd6 Kc6 Ba3 Qe2+ Kc2 Bg7 f8B Qh5 Nf3 d1N Rg1 Bd4 Nc3 Be5 Bc5 Bg7 Ne8 Na6 b8B Qg5 Nd5 Qe3 Bbd6 Nf6 Ndc7 Ne4 Ng5 Nd2 Bh2 Rg8 h8B Rc8 Bcd6 Kb6 a8R Nc5 h7 Bh6 B8e5 Nce4 h8B Rb8 Nf7 Ng5 Bfg7 Rf8 Bb2 Rb7 Bgc3 Ra7 Ng7 Ra5 Rh1 g1Q Re8 Re5 Bba3 Re4 Bab4 Rf4 Ba3 Rf2 Bac5+ Kc6 Ba5 Kb7 Ne5 Rf7 Nd7 Kc6 Nf8 Kb7 Rc1 a1Q Nh7 Qaa3 Ra1 Kc6 Nh5 Qa2+ Bb2 Bf8 Ng7 Kb7 Nb5 Kc6 Bd8 Kb7 Nc7 Kc6 Ba3 Kb6 Bab4 Nc3 Ba3 Nd5 Bab4 Nf4 Ba3 Qg2 Rhg1 Qh1 Rg4 Qg1 Rg3 Ng2 Bab4 Ngf3 Rg6 Ng5 Bbc5+
q1rN2N1/1R1qnN2/B3PBp1/1P1k1R2/1n6/K1R1p3/2R2nnR/3r2Bn b - - 0 1 legal: proof: c4 a5 b4 h5 a4 d5 cxd5 b5 g4 hxg4 Qb3 Nd7 axb5 Ba6 b6 Nb8 b5 Bc8 Qb4 axb4 e4 Bf5 d4 e6 f3 Bd6 e5 Be4 exd6 e5 Ba3 Bf5 Bc1 e4 Ba3 e3 Bc1 Be4 fxe4 Rh6 Ra6 Rh3 Ra1 Rh8 Kd1 Kd7 Kc2 f5 Kb3 c5 h4 f4 b7 g3 e5 f3 h5 f2 e6+ Ke8 d7+ Ke7 h6 Kd6 h7 g2 Nh3 g1N Nd2 g6 Ra3 Qc7 d8B Qg7 Rh2 Qc7 Bf6 Qg7 Ng5 Qc7 Bb2 Ra5 Bg2 Nc6 b8R f1N Rb7 Nge7 Ba1 Rb8 h8R Nh3 Rc8 c4+ Kb2 Nf2 Rc3 b3 Rf8 Ra6 Bf3 Na5 Ka3 b2 Ka2 b1N Rd3 c3 Bg7 c2 Rh3 c1Q Rb6+ Q7c6 Rf5 Rba8 Nde4+ Kc7 d6+ Kc8 d7+ Kc7 d8R Qd1 d5 Qcc1 Nf7 Rb8 Nf6 Rc8 Ng8 Nbd2 Bgf6 Ng3 Rhh5 Qc5 Bae5+ Qd6 Be4 Nf3 Rc3+ Nac6+ Kb2 Ngh1 Bh2 Nh4 Bg1 Ng2 Rh2 Qg3 Rb8 Rb6 Ka3 Qgf3 Rc2 Rb7 d6+ Kb6 d7 Nb4 Bc6 Kc7 Rc3 Rb6 Bb7+ Rc6 Rb3 Rc1 Ba6 Qa8 Rb6 Qd4 Rd3 Rd1 Rc6+ Kb8 Rc2 Qdd5 Rb3 Qdc6 Rbc3 Kc7 Nfh6 Kd6 Rf8 Ned5 d8N Qc7 Rf7 Qca7 Rb7 Ne7 Rb8 Qc7 Rb7 Qd7 Rf4 Kd5 Nhf7 Rc7 Rf3 Rc8 Rf5+
B3r3/1qB1Bk2/q1N1q2N/1nR1r1rb/B2P1BR1/R3b1PK/N2bn3/5n2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Bh3 Qb3 Bd7 axb5 Ra7 b6 Bc8 b5 Ra8 Qb4 axb4 Kf2 f5 d4 c5 e4 h5 g6 h4 g7 f3 g3 f4 b7 b3 d6 h3 b6 c4 d7+ Kf7 e5 c3 Ra5 b2 Ra4 h2 Ne2 c2 Rc4 Rh5 Bg2 Nc6 b8R Bb4 b7 Qb6 d8B Bg4 Ng1 Bd2 Rc8 Nge7 g8N Rg5 b8B Ng6 Nc3 b1R Na2 Rb5 Rc3 Na7 Be7 Qe6 R8c5 Bh5 Bc7 Re8 Ra3 Be3+ Kf1 f2 Ba8 Ra5 Kg2 f1N Nf3 Nb5 Bd2 c1B Nh6+ Kg7 Nf5+ Kg8 Kh3 Kf7 Ne1 f3 Nd3 f2 Ndb4 Qb6 Nc6 Nf4+ Kh4 Ne2 Kh3 Bb2 Bc1 Bc3 Bd2 Bb4 Bc1 Bbd2 e6+ Kg6 Nh6 Qb7 Rg1 Qa6 Rg2 h1Q+ Rh2 Qd5 Bed6 Qb7 e7 Rb8 e8B+ Qf7 Bd7 Re8 Be7 Qe6+ Kg2 Re5 Rh4 Kg7 Ng8 Kf7 Rg4 Nh2 Kh3 f1Q+ Kh4 Qff6+ Kh3 Nf1 Nb8 Na7 Ba4 Qea6 Nc6 Qe6 Rc2 Rg5 Rc4 Rae5 Rc5 Ba5 Bd2 Nb5 Bc1 Bg1 Be3 Bd2 Bf4 Bge3 Nh6+
1k1R1rB1/b1q5/4K1BB/n2P2r1/1r4rr/RBR1B1r1/2B1qPbQ/2rN4 b - - 0 1 legal: proof: e4 d5 h4 b5 Nc3 g5 a4 gxh4 axb5 f5 d3 c5 d4 Nd7 dxc5 d4 Bd3 Ndf6 Bf1 Nd5 exd5 Kf7 Ne4 fxe4 Ra6 Ke8 Ra3 Bf5 Ra1 Bc8 Ke2 Kd7 b4 Kc7 c4 h5 g4 a5 g5 e5 g6 h3 c6 e3 Kd3 h4 Ke4 h2 g7 h3 c5 e2 b6+ Kb8 b7 e1R+ Qe2 d3 b5 d2 Bb2 d1Q Qe3 a4 Ne2 a3 Qh6 a2 Bc1 Qc7 Be3 Ne7 g8B Ra3 Nc3 Qe2 Nd1 Rd3 Rg1 h1R Rg3 h2 Rc1 a1R Rc3 Rb1 Rf3 Ka7 b8R Bh3 Rd8 Rg1 Qh5 h1R b6+ Ka6 b7 Ka7 Qh7 Rg5 b8B+ Ka8 Qh6 Bg2 Qh2 Rg1 Ba7+ Rb8 Ra3 Rc8 Bb6+ Kb8 Ba5 Rh3 Bd2 Rb3 Bc1 Rhg3 Bd2 Nf5 Bc1 Nd4 Bd2 Rb4 Bc1 Qa6 Bc4 Nb3 Bd2 R5g4+ Kf5 e4 Ke6 Na5 Bb3 Qe2 Bh6 Bg7 Rc3 Bd4 Bde3 Rh1 Qg1 Rhh4 Qh1 Rg1 Qh2 Qb7 c7+ Ka7 Bc1 e3 c6 Rb8 c8B Qc7 Bd2 Ka8 Bd7 Ba7 Be8 Rc8 Bg6 Kb8 Rd6 Rf8 Bgc2 Qa6 Bc1 e2 Bce3 e1R Bg6 Qg7 Rd7 Qe2 c7+ Kb7 c8B+ Kb8 Rd6 Qc7 Ba6 Rg5 Bad3 R3g4 Bdc2 Ref1 Nb2 Rc1 Nd1 Bf3 Bce4 R1g3 Bec2 Bg2 Rd8+
bnKRN1Bn/4Pb2/1P4bq/n2R4/2k2rN1/nNNb4/R1Qb1N2/1Nn5 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 Nc6 h4 Bd7 b3 Bf5 h5 Bc8 Bb2 Nb8 Bf6 Ra6 f4 gxf4 g5 e5 Be7 Rb6 Bc5 Rg6 hxg6 e4 Bf2 e3 Qc1 exf2+ Kd1 Bf5 Qc2 Bg4 Kc1 Bd7 Qd1 Bc8 Kc2 Ke7 Kc3 Kd6 Kd4 h5 e4 f5 b6 f3 b7 f4 b4 h4 b5 a4 b6 a3 g7 h3 g6 c6 Qc2 h2 Ne2 a2 Nec3 Rh4 Bc4 Ne7 g8N f1N g7 f2 Nf6 f3 g8N Be6 Ng4 Bf7 N8h6 Ne3 Rd1 f1B Nf2 h1B Nhg4 Ng6 d3 Bh6 e5+ Kd7 Kc5 Qf8+ d6 Nh8 d4 Bd3 d5 Bdg6 Bb3 Nc4 Rd3 Bd2 e6+ Kd8 Rd4 Qh6 d7 Na5 Kd6 c5 Rd3 c4 Rd4 Nbc6 b8N Bg2 Na6 Nb8 Nc5 Bh1 Ke5 Ke7 d8N Bg2 Ndb7 Bh1 Nfd1 f2 Nd6 f1B Ne8 Bfd3 Ndf2 Bhe4 Nb5 c3 d6+ Kd8 d7 Ke7 d8R Ba8 Qc1 c2 R4d5 Bh7 Qb2 c1N Qc2 Bhe4 N5c3 Beg6 Nh2 Rf4 Nhg4 Kf8 Kd6 Kg8 Kc7 Kf8 Na3 Ke7 Rb1 a1N Kc8 Bf1 Rb2 Bfd3 Qb1 Nc2 Ra2 Ne2 Qd1 Nc1 Nab1 Na3 Bc4 Bg8 Nb3 B8f7 Ng7 Bc6 Qc2 Ba8 Ne5 Kf6 Ne8+ Kf5 e7 Ke6 Neg4 Bg8 Rd4+ Kf5 Ngf6 Ke5 R4d6 Bgd5 Na1 Kd4 N6g4 Kc5 Bb3 Bg8 Be6 Kb4 Rd5 Kc4 Nb3 B8f7 Nc7 Be8 Bg8 Bef7 Ne8
n3N1r1/5nbN/rN2B1q1/k2r3R/4nNP1/Pn1nRR2/6nN/B3q1BK b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 g4 Nh6 f5 Nd7 Qf3 Ng8 Qg3 Nb8 Qf4 gxf4 h3 Be6 g5 Bf7 Kf2 Bh5 Ke1 Bg4 hxg4 Ra3 Nf3 Ra6 Ng1 Ra8 Kf2 Kd7 Kg2 c5 d4 Kc7 a3 Kb6 g6 e5 d6 h5 f7 e4 d5 e3 g7 f3+ Kh2 f2 d7 h4 f6 e2 d6 e1N Bb2 h3 Ba6 f1Q Bd4 b3 Be5 c4 Bg3 c3 Ne2 c2 Bb5 c1N Bd3 b2 Be4 Ng2 Nf4 Ra6 Bd5 Nd3 Bf2+ Ka5 Nd2 b1N Nf3 b5 Bg1 b4 Be6 Qe8 d8R b3 d7 Nc3 Re1 b2 Re3 Nh6 g8N Bg7 f8N b1N f7 Ne4 Nf6 Nbd2 N8h7 Rg8 f8N Qg6 Ne8 Nb3 Rc8 Nf7 Rc3 Qe1 d8B+ Rb6 Be7 Nd7 Bf6 Ra6 Be5 Nb6 Nd7 Na8 Nb6 Bh6 Nd2 Bg7 Rf3 Ndc5 Rce3 Nd3 Nf1 Nef2 Kg3 h2 Ba1 Ne4+ Kh3 Nb4 Bf2 Nh4 Rg1 Qc3 Rgg3 h1R+ Nh2 Rd1 Bg1 Qd2 Rf1 Qe1 Rff3 Nf5 Kg2 Rd5 Kh1 Nh4 Rh3 Ng2 Rh6 Nd3 Rh5
RN1KbN1r/N3rB2/b2b1N2/R2q2k1/1N3P2/P1n3bq/Q2Rbr1N/1b6 b - - 0 1 legal: proof: b4 a5 c4 axb4 f3 d5 cxd5 g5 e4 f5 exf5 g4 Bd3 g3 Ba6 Qd7 Bf1 Qd8 h4 Qd6 h5 Nh6 Bb2 Nd7 Bd4 Ng8 Bf2 gxf2+ Ke2 Ne5 g4 Qd8 g5 Ng6 hxg6 Ra6 Na3 Ra5 Nb1 Ra8 Kd3 b5 Kd4 c5+ Ke5 h5 d4 h4 d6 h3 f6 c4 f7+ Kd7 g7 c3 d5 c2 g6 c1R Nc3 b3 Bc4 f1B Rh2 b4 Qe2 b2 Nb5 b1B Na7 Nf6 g8R b3 g7 b2 Qf2 e6 Ne2 Bg6 Ng3 Be2 Nf1 b1B Qg2 Be7 f8N+ Ke8 d7+ Kf7 d6 Re1 Qf2 Ba6 Rg2 Rc8 Nh2 Nd5 Bb3 Nc3 Bd5 Qa5 d8N+ Ke8 Ndc6 Kf7 d7 Bd6+ Kd4 Kf6 d8N Bh5 Nb4 Be8 Ndc6 Qd8 Nb8 e5+ Ke3 e4 Kd4 e3 Bf7 Na4 Kd5 Rc2 a3 Qd7 Rg5 Rb2 Ra2 Nc3+ Kd4 Rc2 Ra5 Qf5 Rb2 Kg5 Ra2 Rcc1 Rd2 Rc2 Ng4 h2 Qg2 h1Q Nh2+ Bg3 Qf2 Be5+ Kc5 Bd6+ Kb6 Qe5 Bg6 Qd5 Bf7 Bc5+ Kc7 Bd6+ Kd8 Rb2 Nf1 Qh3 Nh2 Rf1 Qe1 Rf2 Qd1 Ra2 Qb3 Rb2 Qa2 Rb3 Nd3 Rb7 Nb4 Re7 Ng6 Bac4 Rf8 Ba6 g8N Bd1 Nf6 e2 Rg8 e1B Nf8+ Kh6 Rg4 Bde2 Rc4 Kg5 Rc8 Qhf5 N8c6 Qh3 Ra8 Rg2 Nb8 Beg3 Qc4 Rf2 Qb3 Bg6 Qa2 Bb1 f4+
b3kB2/1P1qnNnq/q3n1RB/n5NB/1B2Pn1N/5r2/B1Bn3b/2Q4K b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 b4 e5 c4 d5 cxd5 e4 h4 Bb7 f4 gxf4 g5 Ba6 h5 Bc8 Ra3 Ra6 Rf3 Rg6 hxg6 exf3 Kf2 h5 e4 f5 d4 c5 b6 h4 d6 a4 b5 a3 d5 h3 b7 h2 g7 a2 g6 a1N b6 c4 Na3 c3 Qe1 c2 Qe3 Rh3 Nb1 Nd7 b8B Bb7 Bd3 Nb3 Nd2 Ne7 g8B Na5 g7 Ba8 b7 Nc5 Be6 Qd7 g8B Rg3 Nh3 Bg7 Rf1 h1Q Rg1 Be5 Ng5 Qh7 Kf1 f2 Ndf3 Rh3 Kg2 f1N Nh4 Rf3 Kh1 Nd2 Ba3 c1N Bc2 Ne2 Bb4 Rf1 Qa3 f3 Qc1 f4 Bg4 f2 Ba7 Ne6 Be3 f3 Bh5+ Kf8 Bec5 Bh2 Bgf7 N2f4 Be3 Qd8 d7 Qe8 d8N Qa4 Bfg6 Qd7 Ndf7 Ke8 d6 Ndb3 Be1 Ng7 Bb4 Nd4 Bf5 Nde6 Bh3 Re1 Bf1 Rd1 Bc4 f1Q Ba2 f2 Bed2 Qa6 Be3 f1N Bed2 Qc8 d7+ Kf8 d8B Ke8 Bc7 Qd7 Bcd6 Re1 Bdc5 Re3 Rg4 Rf3 Bde3 Nc8 Bf8 Nd2 Bec5 Nf5 Bh6 Nfg7 Bf8 Ne7 Nh3 Qac6 Rg6 Qa6 Nhg5
2K3R1/1n1r3B/1Rn1P1qr/2Br1R2/nRRn1r2/1nb3P1/n1Q3R1/3B2Nk b - - 0 1 legal: proof: f4 b5 c4 g5 a4 gxf4 axb5 d5 cxd5 e5 h3 Bg4 hxg4 Bh6 Na3 Bf8 Nc2 e4 Nd4 Ne7 Ndf3 exf3 Ra3 Ng8 Ra6 Bd6 Ra1 Bf8 Kf2 Ke7 d4 Kd6 b4 c5 e4 a5 g3 h5 b6 f5 g5 a4 b7 a3 g6 c4 g7 c3 b5 h4 b6 a2 Bb5 c2 Bc4 h3 Be3 c1N Rh2 Nc6 b8R Rh6 b7 Qf6 Bd2 Na5 Be2 Ne7 g8B Ra7 Qb3 Nec6 Rb1 a1N Re8 Bg7 b8R Nc2 Qd3 Qg6 Rec8 Nb7 Bd1 Na2 Rg2 h2 Be2 h1R Rb3 R1h5 Rb4 Be5 Bh7 Bf6 Kf1 f2 Bd1 Bg7 Ke2 f1R Be3 f3+ Kd2 f2 Rg8 f4 e5+ Kc7 e6 Kd6 Qe4 f3 Kd3 Rf5 Kc4 Rf4 Be2 Rd1 Kb5 f1N Kb6 f2 Rbf8 Be5 Rf5 Nd2 Rb8 f1N Bg4 Na3 Qc2 Nb3 Bf3 Rd2 Bd1 Nh2 Rc8 Nf3 Rc7 Ncd8 Rcc4 Nb1 Bf2 Ra5 Be3 Rc5 Ka7 Bg7 Kb8 Nc6+ Kc8 Nbc3 Rb6 Na4 Bf2 Bf6 Rbb4 Bd8 Be3 Ba5 Rb6 Bc3 Bf2 Ke7 d6+ Ke8 d7+ Ke7 d8R Rd5 Rcb4 Rd7 d5 Kd6 Rg8 Nfd4 Rff8 Ke5 d6 Rd3 Rf5+ Ke4 Rc4 Rg7 d7 Rf7 d8R Rd7 Ne2 Kf3 Rde8 Nb5 Rd8 R3d5 Bc5 N5d4 Rbb4 Re7 Rd6 Rd7 Rg1 Ncd8 Rdb6 N8c6 Re1 Kg2 Ng1+ Kh1 Re2 Rf2 Rd2 Rf4 Rg2
R1R4n/QB1n3k/4R3/B2PnN2/5br1/1KRRb2r/nR1p2bP/Bb4q1 b - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 b5 axb5 Bb7 gxh5 Bc8 d4 c5 d5 d6 Na3 Kd7 Nc2 Ke7 Nd4 cxd4 c5 Kd7 cxd6 Ke8 Kd2 f5 Kc2 Kf7 b4 g5 e4 Kg7 e5 a5 e6 f3 h6+ Kh7 b6 f4 b5 f2 d7 a4 e7 a3 e8R a2 b7 g4 b6 g3 Bg2 f1N Bf3 d3+ Kb2 d2 Bh5 f3 Kc3 g2 Qa4 f2 Bg4 Bd6 Kb3 Qg5 d8B Bf4 Bb2 Ne7 Qa7 Bf5 Ne2 g1B Nd4 Nd7 b8R Ne3 b7 f1B Rc8 Bg2 b8R Nc4 Ba5 Bb1 Nf5 Bge3 Rc1 Ng6 Re6 Nce5 R1c3 Rg8 Be2 Nh8 Ba6 Qg3 Rb5 Rg4 Bb7 Qe1 Rd3 Qg1 Rc2 Rc8 Bbc3 Rf8 Rc5 Rfg8 Rb2 R8g5 Bd4 Rh5 Rc8 Rh3 Rdc3 Bd3 Rac1 Bb1 Rd3 Rhg3 R1c3 a1N+ Ka4 Nc2 Kb3 Rh3 Ra8 Nc6 Rc8 N2b4 Bf6 Kg6 h7 Na2 Ra8 Nf7 h8R Nce5 Rhc8 Kh7 Bg7 Nh8 Rcc2 Nc3 Ra2 Nc6 Bd4 Nce5 Rc1 Ne2 Ba1 Nc3 Rb2 Na2 R1c3
1N1q1b2/1R1R1R1B/P1n2P2/1bp2K1n/B1N1BB2/N4n1k/r2Bb2r/4n1b1 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Ra6 fxg5 Ra4 g6 Ra3 g5 Ra8 Qg4 hxg4 Kf2 Kd7 Kg3 e5 d4 c5 h4 b5 a4 b3 g7 b4 h5 b2 h6 e4 Kf4 b3 g6 g3 h7 g2 d6 e3 d5 e2 a5 e1B a6 Be7 Bd2 Bf6 Nf3 g1N Na3 b1B Bg2 Bd3 Rb1 b2 Ne5+ Ke8 d7+ Ke7 Kg4 Bb5 Nec4 Nf3 Rf1 Bf2 Bf4 B6h4 d6+ Kf6 Bh1 Ne1 Be4 Nc6 Bd2 Qa5 d8R Rb8 Rd7 Bg1 Rf2 Qd8 Rf4 Nge7 g8B Nd5 g7 Bg5 Bf7 Bh6 g8B Bf8 Be8 Bb7 Rc7 Ba8 d7 Rb6 Rd1 b1N Rf3 Nf4 Rb7 Nh5 Bf4 Qc7 d8N Nd2 Rf1 Ndf3 Rd7 Nb4 Nc6 Qd8 Nb8 Nc6 Nd2 Be2 Ndc4 Rb2 Rg7 Ncd4 Ba4 Nc6 Rgd7 Ra2 Rb3 Nfd4+ Rff3 Na5 Bc7 Bc6 Rb7 Ng3 Kf4 Bb5 Rf2 Nac6 Ba5 Rc2 Bd2 Rb2 Bf7 Ra2 Bg6 Rg8 h8B+ Rg7 Ke3 Kg5 Bh7 Kh4 Kf4 Kh3 Rf3 Rg6 Be5 Rg8 Rd3 Rg7 Rf7 Ndf3 f6 Nh5+ Kf5 Rg2 Bef4 Rh2 Rdd7
5q2/R3N1RB/3qr3/1qbrN1bN/1N2q1RB/4qpBb/K2nPk1P/4N3 b - - 0 1 illegal: No possible last move, all moves rejected
3B4/1N1P1pn1/2KR4/bNbN2qb/1qkB2P1/6qb/2B1R2R/bB1B2rr b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f3 Na6 Qa4 Ke8 Qd4 Nc5 Qf2 Ne6 f4 gxf4 Qf3 Ng5 hxg5 exf3 Kf2 Ke7 e4 Kd6 d4 h5 b4 c5 e5+ Kc7 g6 Kb6 g7 a5 e6 h4 e7 h3 e8B c4 d6 a4 d5 h2 d7 a3 d6 a2 Be3+ Kb7 b6 Ka6 b7 Kb5 b8B Ra3 Ne2 c3 Bc7 c2 Nbc3+ Kc4 b5 c1B b6 Rh3 b7 Qg5 b8R Nf6 g8B Nh5 d8N Ng7 Nb7 Bd2 Ba4 Bf5 d7 Bg6 Bc2 Bc5 Bd8 Bh5 Nd5 Ba5 Re1 a1B Bgh7 Rc3 Bd1 Rc1 Bd4 Rg3 Be4 Rg1 Bg2 Rb1 Nec3 Rc1 Re2 Rb1 Bf1 Rc1 Ke1 f2+ Kd2 Rb1 Bfg2 f1Q Bec2 Qf2 Bge4 Qg3 Rc8 Rc1 Rc6 Rb1 Rd6 f3+ Nf4 Rc1 Ke3 Rb1 Bf5 f2+ Ke4 f1B Nb5 Bh3 Nd5 Rg2 Rf1 h1Q Rff2 Qe1 Bh7 Rg1 Rh2 Qb4 Bf5 Qgb3 Ke5 Rc1 Bb1 Qh4 Bfc2 Qbg3+ Ke4 Qg5 Nf4 Q5h4 Ke5 Rh1 Ke4 Qd2 Ke5 Kb4 Kd5 Qg5+ Kc6 Kc4 Nd5 Qdc3 Ref2 Qa3 Bf3 Rcg1 Bfd1 Qb4 Re2
1RRr4/4q2Q/R2P3R/bR2q3/1P5b/1b2Bk1B/1rNb2np/bB1KR2b b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 h4 Bd7 g4 Bh6 h5 Nc6 Nc3 Bf8 Nce2 Bc8 Nf4 gxf4 g5 Ne5 Ra6 Kf7 Ra1 Ng6 hxg6+ Ke8 d4 Kd7 b6 Kd6 b3 e5 g7 h5 g6 c5 f6 a5 b7 a4 b8R h4 f7 e3 Qg4 e4 Ke2 c4 Rh2 f3+ Kd1 c3 Rb1 a3 Bb2 e2+ Ke1 c2 Rb4 c1B Qh3 a2 Bc3 a1B Qf5 h3 Qh5 Be6 Bd2 Rb8 Qh7 Be7 f8R Nh6 g8B Nf5 g7 Nh4 Be3 Rb5 Rf6 Ng2+ Kf2 Rb7 Rb5 Bd2 Re1 Qc7 Bf7 Rd8 g8R Qd7 Rh1 h2 Rh6 Bg5 Bg6 Qe7 Bf5 Rdd7 Ra8 Rd8 Ra6+ Rb6 Rc1 Bf6 Rc8 Bg8 Kg3 f2 Nf3 e1Q Bh3 Bf7 Bd3 f1B+ Kg4 Ba5 Bb1 Qc3 Ne1 Be2+ Kg3 Bf3 Kf2 Bg8 Bd2 e3+ Kf1 Qc5 Nc2 e2+ Kf2 Bf7 Be3 e1B+ Kf1 Be4 Ke2 Bed2 Re1 Be6 Kd1 Bh4 Bf2 Qc3 Bg1 Qg3 Be3 Qe5 Rb8 Kd7 d6 Kc6 d7 Kd6 Rb4 Kd5 Rc8 B4f5 Rb8 Ke4 d5+ Kf3 d6 Be4 Rb5 Rc6 Na3 Rc2 b4 Rb2 Nc2 Bb3 Rc8 Re8 d8R Bb7 Rd7 Rd8 Rb8 Be4 Rc7 Nf4 Bg4+ Kg3 Qg6 Bh1 Bh3+ Kf3 Qh7 Ng2 Rcc8
3n2BR/R4R2/1P2rnnR/Q1p3bR/2N5/b2bbbPK/1qN4R/2Nk1n2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 b5 axb5 f5 g4 Ra6 e4 Rg6 b3 Rg5 Bb2 fxe4 Bf6 Rh5 f4 Rh3 f5 g5 Be5 Rg3 Bf4 gxf4 hxg3 Bb7 Bg2 Ba6 Bf1 Bc8 Kf2 Kd7 Kg2 Kd6 d4 h5 b6 e5 f6 h4 g5 h3+ Kh2 f3 g6 e3 f7 e2 b4 e1N g7 a4 b5 f2 b7 a3 b6 a2 Qd3 e4 Na3 e3 Ne2 Nf6 g8R Rh6 Qb3 Bf5 Qd1 Bd3 Nc1 e2 Rh8 Ng2 Qa4 e1B Qa5 Nc6 b8N Nh4 Nc2 Bd2 Nd7 Be3 Ne5 Ng6 Bg2 Be7 f8R Qa8 Bf1 Nd8 Rf7 c5 Be2 Qa6 Bd1 Qb5 Nc4+ Kd7 d6 Ke6 d5+ Kf5 d7 Ke4 Bg4 Qb2 Be6 Kf3 d6 Nf8 Nb3 Ke2 Bd5 Ng6 Be6 Rh4 Rh5 Re4 Bd5 Re6 Rh6 Ng8 Rh5 B7g5 Rh6 Nb7 d8R Nf6 Rdh8 Nd8 d7 Ng8 Rag1 a1B Rg2 Nf6 Rh5 Qe5 R8h6 Bb2 Ra1 Ba3 Nc1+ Kd1 Ra2 Qb2 Ra1 Nb7 d8R f1N+ Kh1 h2 Rdh8 Bf5 Re2 Bd3 Kg2 h1B+ Kh3 Bf3 Rh2 Rd6 Rc7 Rc6 Bg8 Re6 Rf7 Nd8 Qb5 Bb4 Raa7 Ba3 Qa5
4r2B/2b1n1NP/q1bN4/k1PB4/3N2KR/5BpN/Nnpr2qN/Qr3n2 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 d5 axb5 h5 g4 hxg4 c4 f5 exf5 Bb7 Ra4 Ba6 bxc5 Rh4 c6 Bc8 c5 Rh8 Rc4 dxc4 Ke2 g5 f4 a5 h4 e5 d4 c3 f6 e4 f7+ Ke7 b6 c2 h5 e3 d5 g3 Kf3 a4 c7 Kd7 h6 e2 f5 e1Q d6 Kc6 h7 g2 d7 a3 f6 a2 b7 a1R Rh4 R1a2 Bb2 Bd6 f8N Ra1 f7 Qa5 Nd2 Na6 Kg4 Ne7 Nh3 g1N Bc4 Rb1 Ne6 Qg8 f8N Nf3 Nf1 Nd2 Bd5+ Kb5 d8N Bd7 b8N Bc6 c8B Bc7 Bb7 Nb4 Na6 Nd3 Nh2 Nf1 Nf7 Rd8 Nb4 Qa6 Nd4+ Ka5 Nfe6 Qg6 Bf3 Rhe8 Ng7 Rd5 Ba1 Nb2 Na2 Rd7 Nd6 Qe4+ Kh5 g4 Kg5 g3 Ba8 Ba4 Bd5 Bc6 Qc1 Qee2 Kg4 Qg2 N4b5 Na4 Be5 Nb2 Nd4 Na4 Qb2 Rdd8 Qa1 Nb2 Bf6 Bb8 Bf7 Ba4 N4b5 Rg8 Ne8 Rh8 Nh5 Rf8 Bh8 Rd2 Nhg7 Bc7 Nd4 Bc6 Nd6 Re8 B7d5
1N6/B2r1RbB/R1b5/NnB2K1b/2B1p1PP/2qrR3/1Bp3kr/4r1Nn b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 g5 a4 g4 axb5 Nc6 f3 h5 fxg4 Nd4 g5 Ne2 g4 h4 Qb3 Rh5 Qg3 hxg3 e5 Rh8 e6 Bxe6 Bh3 Bd7 Bf1 Bc8 b4 Kd7 d4 Kd6 Kd2 e5 Ke3 c5 Ke4 f5+ Kf3 a5 g6 f4 Ke4 c4 g7 c3 h3 c2 b6 a4 b5 g2 b7 a3 b8B+ Qc7 b6 f3 b7 a2 Nd2 f2 Ngf3 g1R Ng5 Be6 Nb3 Ra3 Na5 Nh6 g8B Rd3 Nf3 Bf7 Bb2 Nf5 Ba7 Bh5 b8N Qc3 Bh7 Bg7 h4 Rd8 Re1 Rg2 Ng1 a1R Rh3 Rc1 Rf3 Rh2 Re3 Rd7 Rd1 Ke7 d6+ Kf6 d5 Ned4 Be2 Rb1 Rf1 Re1 Bc5 Nb5 Ba7 Rf7 d7 Re7 d8R Rd7 d6 Ng3+ Kf3 e4+ Kf4 Ke6 Rf8 Kd5 Rf7 Nh1 Kg5 Ke5 Rf6 Rc7 d7 Rb7 d8B Rbd7 Rb6 Kd4 Be7 Ke5 Rf3 Kd4 Rf7 Ke3 Bb4 Rc1 Re1 f1B Kf5 Kf2 Ra6+ Kg2 Bbc5 Ra1 Bd1 Rb1 Re3 Rc1 Be2 Re1 Ba1 Rdd1 Nb7 Nc7 Bb5 Bc4 Re6 R1d3 Bb2 Bd5 Bc4 Nb5 Ra6 Bc6 Na5
2r4k/1BrNRB1p/1Bn3b1/1KPNqQ1q/7N/1B1p1Bp1/r5P1/3q2bB b - - 0 1 illegal: Other
BqBkn1nR/PP2r1p1/2n2pRn/7K/2rBQ3/1B2bR2/pNq2B2/2B5 b - - 0 1 illegal: No proof kernel
rR1Rq3/nKb1Bp1R/pp6/q1r5/2q4R/rP3NBB/PR6/kNNr4 b - - 0 2 legal: proof: c4 c5 g4 d5 cxd5 g5 f4 h5 b3 e5 h3 exf4 Bb2 h4 Qc2 c4 Bc1 c3 Qb2 Nd7 Rh2 Ndf6 Rh1 Nh5 gxh5 cxb2 Rh2 g4 Rh1 g3 Bg2 Qc7 Bf1 Bg4 hxg4 Qd8 d4 Ke7 Kd2 Kd6 Kd3 b6 Kc4 g2 Kb5 h3 Ka6 h2 e4 f3 e5+ Ke7 d6+ Ke6 d5+ Kd7 g5 f2 e6+ Kc8 d7+ Kc7 h6 Kd6 e7 Ke5 e8N Kd4 h7 Bh6 g6 Qe7 d8B Bf4 g7 Bc7 Nd6 Qe8 Nb7 Ne7 d6 Nc8 d7 Rf8 h8R Rg8 Be2 f1Q Rh7 Rh8 Bb5 Qc4 g8R Kd3 Bh4 Kc2 Nf3 g1Q d8R Qge1 Nc5 Qa5+ Kb7 a6 Rf8 Na7 Be7 Rg8 Rh4 Rg5 Bd7 Rd5 Nd3 Rc5 Na3+ Kc3 Bh3 b1R Bf4 Rd1 Nc1 Kb2 Nb1 Rdd5 Bg3 Rg5 Re1 h1R Ree4 Rd1 Rh7 Rb5 Rg8 Rgc5 Reh4 Rb4 Rgh8 Ra4 Rb8 Ra3 Rg8 Qeb5 Rgd8 Qe8 Nbd2 Kc3 Rb1 Kc2 Nf1 Qea4 Rb2+ Kc3 Re2 Qe8 N1d2 Kb2 Nb1+ Ka1 Rb2
2n3B1/1p4PB/6R1/p1qR2Bq/2pnrNRp/2R2kbR/1b2N1NP/5n1K b - - 0 1 illegal: No proof kernel
b1R2N2/2q3P1/b1Rp1b1r/3K1N2/1P4nR/2ppr1NQ/1k1NBp2/3N1bN1 b - - 0 1 illegal: No possible last move
7b/3B2nq/1RR1rp1P/2pbR3/NbBp4/k1NB1pnB/2PK2pN/4B3 b - - 0 1 legal: proof: b4 a5 g4 g5 d4 e5 dxe5 b5 f4 Ra6 a4 Ra7 Qd6 gxf4 axb5 a4 Qg6 Ra5 bxa5 h5 g5 Bd6 Qf5 Bf8 Qg4 hxg4 e4 Ke7 h4 c5 b6 d5 h5 f6 g6 g3 b7 d4 e6 Kd6 e5+ Kc6 h6 g2 a6 a3 g7 a2 e7 Qd5 e8B+ Bd7 a7 Qf7 a8N Kd5 e6 Bc8 e7 Nd7 b8R Bb7 Bd3 Qg6 Be3 Qh7 Nc3+ Kc6 Rb1 a1B Bd2 Bb2 Bf7 Ba3 e8B Bb4 Nf3 Ne7 g8B Nf5 Nb6 Bg7 Bfc4 Ng3 Nh2 f3 Bge6 Rf8 Bef5 Bh8 Bh3 Rf7 Kd1 Re7 Re1 Re6 Re5 Ba8 Be1 Bb7 Bf7 Nf8 Nba4 Ba8 Kd2 Bb7 Nb2 Kb6 Re8 Ka5 Rc8 Bd5 Rc7 Rc6 Bg8 Ne6 Na4 Ng7 Bge6 Ra6 Bef5 Re6 Rc6 Ba3 Kd1 Re8 Nb2 Kb4 Bd7 Re6 Nba4+ Bb2 Ne4+ Ka3 Kd2 Ba1 Rbb6 Bc3+ Kd1 Ba5 Nec3 Bb4 Kd2
2B1N3/Rb1P4/B2BpQ2/2pp1Bnp/2R2r1n/P4pbk/2rB2r1/K1R3B1 b - - 0 1 illegal: No proof kernel
2r1B1R1/1PR2B2/1R4KB/n1Q1RRN1/1b2p3/k2nP2n/rnq1nbp1/4Rb2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 Bg7 Na3 Bf8 Nc2 d6 Ne3 gxf4 g5 d5 Ng4 hxg4 cxd5 Rh7 Bg2 Rh3 Bf1 Rh8 Kf2 Kd7 h4 Kd6 b4 c5 d4 e5 h5 f5 h6 a5 b6 c4 b7 e4 h7 a4 g6 g3+ Kg2 c3 Kh3 a3 b5 a2 b6 g2 g7 c2 Qe1 f3 Qd1 f2 Bh6 c1N Nf3 Nf6 Kh4 f4 Kg5 Nh5+ Kg6 Qc7 g8B Nd3 Ng5 f3 Bf7 Nc6 b8R Na5 Rc1 a1B Qc2 Ba6 e3 Bc3 b7 Be1 Re8 Ra7 Be2 f1N Re5 f2 Rf5 Nfg3 Qc5+ Kd7 d6 f1N d5 Bf2 Rc4 Nd2 Re1 Ra8 Bd1 Ne2 Ba4+ Bb5 Rc2 Ndc4 Rc3 Be7 Rb3 Rhd8 h8R Ncb2 Rg8 Rdc8 Re8 Bf8 Ree5 Qc6 Rb4 Bc4 Rb6 Nhf4+ Kf6 Nh3 Kg6 Nb3 Bb5 Ra2 Ba4 Na5 Bb5 Kd8 Ba4 Qc7 Bae8 Bb5 d7 Ba6 Qb4 Qc2 Qb5 Kc7 d8R Bb4 d6+ Kb8 Rd7 Ka7 Qc5 Bc4 Rb5+ Ka6 Rc7 Bd2 Rb3 Bb4 d7 Bb5 Qc3 Kb6 d8R Ba6 Bc6 Bc4 Rg8 Ba6 Bcd5 Kb5 Qc5+ Ka4 Be8+ Bb5 Rc6 Bc4 Bdf7 Ba6 Rc3 Bb5 Rc4 Ka3 Rb6 Ng3 Bd5 Nc1 Qd4 Ba6 Rc7 Bf1 Bc4 Ncd3 Bcf7 Ne2 Qc5
B1b2r2/1N4K1/6pR/2brpRBN/1Rnr4/1bB2BPB/nP1q1b2/nk1N4 b - - 0 1 legal: proof: e4 c5 a4 h5 d4 f5 dxc5 fxe4 g3 b5 axb5 h4 Qf3 h3 Qg2 hxg2 Kd2 Kf7 Kc3 Kg6 Kd4 Kf5 h4 d5 c4 a5 f4 g6 b6 e6 h5 e3 h6 e2 b7 e1B h7 a4 c6 a3 c5 a2 c7 Qe7 c6 Ra5 Be2 Bd2 Nc3 Qh4 Nh3 g1R Nd1 Nf6 Bf3 Na6 b8N Qh6 Nd7 Nb4 Nc5 Be1 Nb7 Ng4 Be3 Rg8 h8B Ne5 Rc1 a1N Rc4 Na2 Rb4 Nc4 Bf6 Bd7 c8B Bf2 c7 Be7 Be5 Rf8 Rh2 Bb5 Bd7 Ba6 c8B Bd6 Bc6 Bc5+ Kd3 Re1 Bc3 d4 Bed2 Re4 Bd5 Kf6 f5 Ke5 f6 Rg4 f7 Rb5 Nd6 Bb7 Bd7 Bc8 Ba8 Re4 Nb7 Kd5 Bg5 e5 Bh5 Rg4 Ke2 Ke4 Nf4 Rh4 Bh3 Ra5 B5g4 Rb5 Nh5 d3+ Kf1 d2 Kg2 Kd3 Kf3 Kc2 Ke4 Rg8 f8R Kb1 Rf5 Rf8 Kd5 Ra5 Bf3 Re4 Ne3 d1B Rh1 Rf4 Rh2 Bb3 Nd1 Rf7 Rh1 Rd7+ Ke6 Rdd4+ Kf7 Rb5 Bh4 Qg5 Kg7 Qd8 Rg5 Rf8 Rf5 Qg5 Rh2 Qd2 Bg5 Bd6 Bhg2 Rbd5 Rh4 Bc5 Bh3 Bb6 Nf4 Ba7 Rh6 Bc5 Nh5
Rb2RQBK/2q1rr2/NRn2p1p/5P1P/1b1n1R2/1nk3nR/2N1nR2/1q1N4 b - - 1 2 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 f4 Bb7 f5 cxd4 Be2 d3 Bf4 d4 Bf1 Bd5 exd5 gxf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 a5 g4 a4 h4 f3 d6 a3 h5 a2 c5 d2 b6 e6 c6 f2 c7 h6 c8R d3 b7 Qe7 g5 Nf6 g6 Qc7 g7 Nh7 g8R Ng5 Kf6 e5 d7 e4 d8R e3 Rh3 e2 Nc3 e1B Nf3 Ne6 Rg2 Ra5 Re8 Nc6 b8N Rh7 Nd4 Re5 Nc2+ Kc4 b4 Ned4 b5 Bb4 b6 Re7 Be2 f1N b7 Bg3 Na6 Bh2 b8R Ng3 Qe1 d1Q Rf2 Qb1 Rb6 Kb3 Bf1 d2 Ra8 d1N Bc4+ Kb2 Qe6 Rg7 Qd6 Rh7 Nd5 Nc3 Nde3 Nce2 Rf4 Kc3 Bb3 Qg1 Raf1 a1N R1f2 Qb1 Bc4 Nab3 Qc5 Rh8 Kg7 Rh7+ Kg8 Rg7+ Kh8 f6 Qd6 Ref7 Qf8 Re7 Bg8 Rgf7 Nd1+ Kc4 Nb8 Qe5 Nde3+ Kc3 Na6 Nh1 R4f3 Qa5 Rb7 Bb8 Rf4 Qc7 Rb6 Nhg3 Nd1+
1R1B2rb/KN1B2B1/1p6/1Bqq3p/6QP/B1k2Prq/1N1Nb1b1/2q1nBn1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Nf6 g4 fxg4 b6 Ng8 b4 Bb7 b5 Bd6 Ra6 Bd5 b7 Bf8 Rb6 Na6 b8B Bg2 Rg6 Bd5 b6 Bb7 Rd6 Bc8 b7 Nf6 Rc6 Ng8 Rb6 cxb6 Kd2 Ke7 Ke3 Ke6 Kd4 h5 e4 d5 c4 g5 h4 g3 c5 g2 c6 g4 c7 g3 f3 Nb4 Qe1 a5 Qe3 a4 Bc4 a3 Ne2 g1Q Nec3 g2 Nd1 a2 Nb2 a1Q Nd2 Nh6 Bf1 Qh2 Qf4 Nf7 Rg1 Bg7 Qg5 Bd7 c8B Qh3 Bc7 Rg8 b8B Bh8 Qg3 Qg5 Bd8 Nd3 Qg4+ Qf5 Ba6 Ng5 Bb5 Ne1 Bd6 Qb1 Bf8 Ra4+ Kc3 d4+ Kb3 d3 Bg7 Ra7 Kb4 Rc7 Bc6 Qc2 Kb5 Qc5+ Ka6 Rc8 Ka7 Qd5 Nb3 d2 Bcb5 d1B Nd2 Rc5 Qf4 Be2 Qg4 Kf7 e6+ Kg6 Rh1 g1Q e7 Kf7 e8N Ke6 e5 Rc4 Qg3 Rg4 Nd6 Qdc5 Qg2 Kd5 e6 Rg3 e7 Qe5 e8B Kd4 Nb7 Kc3 Nd3 Bc8 Bed7 Qd5 Ba3 Qed4 Bgf8 Q4c5 Nb2 Qge3 Rg1 Qf4 Ndc4 Qc1 Bh6 Qhf5 Nd2 Nh3 Rh1 Ng1 Bg7+ Qdd4 Qh3 Qe6 Qg4 Qcd5 Qe4 Qh3 Qg4 Qc5 Rh2 Qd5 Rg2 Qc5 Bf8 Qdd5 Bg7+ Qe5 Qf5 Qh2 Be8 Rg4 Bdf6 Rf8 Bh6 Qh1 Bfg5 Qed5 Bec6 Be6 Bd7 Re8 Be7 Rg5 Qg6 Bh3 Rg4 Qh2 Re4 Rg3 Qg4 Bg2 Bg7+ Kc2 Bg5 Rg8 Re8 Qh1 Rb8 Qh3 Bf8 Kc3 Bd8 Kc2 Bh6 Kc3 Bg7+
2R1b1Kn/2n2B2/nr1q3N/1nR3B1/1p4BP/2pr1kq1/1RPbR2R/Q1Rb4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 dxe5 g6 f5 Rh7 Nc3 Rh6 Nd5 Rh8 Ne3 Rh7 fxg6 Rh6 g5 Rh8 Ng4 hxg4 Kd2 Ke7 Ke3 Ke6 Kf4 c5 a4 d5 e4 f5 h4 b5 g7 d4 a5 d3 g6 b3 a6 b4 a7 d2 Rb1 g3 Bb5 b2 Ra1 b1N Ne2 c4 Rh2 g2 Ng3 c3 Be2 g1Q Bg4 Nh6 g8R Na3 g7 Qd6 Kg5 Nf7+ Kg6 Nb5 Ra2 Qe3 Rb2 Na6 Qg1 Rb8 a8R d1B Bd2 Nac7 Ra1 Na6 Rc1 Bd7 Qf1 Qe1 Bg5 Rb6 Qh1 Be7 Rc8 Rd8 Kh7 Be8 g8R Nh8 Rc5 Bf8 Qf1 Bh6 Rf8 Qe3 Kg8 Rd7 Bh5 f4 Nf5 f3 Bg4 f2 Qe1 Bg6 Rfc8 Qg3 Qg1 f1N Qh1 Ne3 Qg1 Bg7 Nh6+ Nf5 Qh1 Be8 Qg1 Bf6 Qf1 Nbc7 Qe1 Ke7 e6 Nd4 e5 Ndb5 Qh1 Rd8 Qd5 Qc6 Qa2 Rd3 Qa1 Qd6 Rc4 Nd5 R8c5 Ndc7 Re4 Kd8 Ree2 Kc8 e7+ Kb7 e6 Be5 Rhf2 Bf4 Rg2 Bd2 Rh2 Bc6 e8R Bd7 Rce5 Kc6 Rc8 Be8 e7 Qd4 Re6+ Kd5 Rc6 Qdf4 Rc4 Qd6 Rc5+ Kd4 Reg2 Ke4 Rf2 Bd7 e8B Bc6 Rfg2 Bd7 Bf7 Be8 Bf5+ Kf3 Re2 Bd7 B5e6 Be8 Bg4+
k1RrQ1r1/q2b1RR1/ppNN1R1b/P4BP1/1nr1N3/2q5/1rR3K1/bn2R3 b - - 0 1 legal: proof: f4 c5 d4 h5 b4 g5 bxc5 h4 Be3 e6 Bf2 e5 dxe5 gxf4 g4 Ne7 Bg3 hxg3 Bg2 Ng8 Bh3 Nc6 Bf1 Nb8 a4 d5 h4 Kd7 e4 Kc7 c4 f5 h5 g2 Kf2 f3 a5 d4 e6 d3 e5 a6 c6 b6 e7 f4 e8R d2 e6 Bh6 c5 Ra7 e7 Be6 g5 Qc8 Bd3 Bd7 Rf8 Nf6 Nc3 Rg8 Ne4 Nd5 Rf7 Nc3 Qa4 d1R Ne2 Nb1 Re1 g1B+ Kf1 f2 Kg2 f1R Nd4 Qb7 e8N+ Kc8 c7 Nc6 Ra2 Nb4 Nc6 Bd4 Rf2 Ba1 Rf6 Qb8 Qb5 Kb7 c8R Rh1 N8d6+ Ka8 Rc2 Rh4 Rcf8 Rc7 R8f7 Qa7 Qa4 Rcc8 Qb5 Rcd8 Qa4 Bf8 h6 Bg7 h7 Bh6 h8R f3+ Kg3 f2 Rhh7 f1Q Rhg7 Qf5 Kg2 Rc1 Nc3 Qf4 Bf5 Qc4 Nce4 Rh2+ Kf3 Qb5 Rd2 Rb8 Nd4 Qc4 c6 Rbd8 c7 Be6 Qe8 Bd7 Nc6 Qc2 Rg2 Qb3+ Kf2 Rc4 Kf1 Qc3 c8R+ Qb8 Rg4 Rb2 Rg2 Qd4 Rc2 Qc3 Rc7 Qb7 Kg2 Qa7 Rc8+
1Nbqb1b1/1r1BBpKn/qQ1bB3/3BBP2/p3n2N/q2B2RN/5P2/kr6 b - - 0 1 illegal: No proof kernel
1N1NRnN1/p3Pn2/r1r1Rq2/1BBp1q2/8/2nPb2R/NB2N2K/kb2b2b b - - 0 1 legal: proof: b4 e5 f4 exf4 g4 h5 gxh5 c5 a4 b5 c3 Nf6 Qb3 Nd5 axb5 Ne7 b6 Ng8 b5 Be7 Qa4 Bf8 Qb4 cxb4 Kf2 Ke7 Kg2 Kf6 e4 Ke5 h4 f5 d3 g5 c4 Kd4 c5 g4 h6 f3+ Kh2 f2 c6 f4 h7 b3 b7 f3 b6 b2 e5 Nh6 e6 Qf6 h5 Nf7 c7 Bb4 h6 Be1 Nc3 b1B Bh3 f1Q Ba3 f2 Na2 d5 e7 Bf5 c8R Nd7 b8N Nf8 b7 Be4 Nd7 Bf3 Rd8 Rc8 b8N Rc6 Re8 Rg8 h8B Rg6 h7 Bg2 Nb4 Kc3 Na2+ Kb3 Bd6 Kb2 Ne2 Be4 Bc5 Bf3 Rg1 Bh1 Rg3 Ra6 Re3 Rh6 Re5 Qf5 Bg7 Rhc6 h8N Qf6 Nb4 Qf5 Ra4 Qf6 Na2 Qf5 Nf6 Ka1 Ng8 Qf6 Kg3 Qf5 Rae4 Qf6 Re3 Qf5 Kh4 g3 Re6+ Qf6+ Kg4 g2 Kg3 g1B Bf5 Nh6 Nf7 Qh3+ Kf4 f1N Nd8 Nf7 Bh8 Qh5 Rh3 Ne3 Bg7 Nd1 Bh8 Ba5 Kg3 Be3 Kh2 Be1 Bg7 Qb2 Re4 Rg6 Bc8 Qf5 Bd7 Rgd6 Bb5 Rdc6 Re6 Qd4 Ba3 Qb2 Bd4 Qc3 Bb6 Qcf6 Bbc5 Nc3 Bb2+
1B3BR1/2bnN1pk/P1N4B/1N2n1n1/KQp3rb/3qbB1r/b1B3P1/3q1B2 b - - 0 1 illegal: No proof kernel
3qkq2/4rN2/q6n/p2RBnnR/P1b1NK1b/4Np1q/NN2RPN1/3n1Q2 b - - 0 1 legal: proof: g4 f5 b4 d5 e4 dxe4 Bb2 c5 Bg2 b5 Ba3 h5 Bh3 f4 Bc1 a5 bxc5 Ra6 Bg2 Rf6 Bf3 Rf5 gxf5 Rh6 Be2 Rh8 Bg4 hxg4 Ke2 g5 a4 e5 c4 e3 h4 g3 Kf3 b4 d4 b3 h5 e2 h6 e1Q d5 g2 h7 b2 f6 Nc6 d6 Bf5 d7+ Kf7 Na3 b1N Ra2 Bd6 Nc2 Nc3 Ne3 Bb1 Bb2 Nh6 Ne2 g1Q Rh5 Be7 Nc1 Re8 h8N+ Kf8 f7 Qh2 Qe2 Nd1 Qf1 Qb4 Ba1 Qa3 Re2 Bd3 Na2 Bf6 Bb2 Ne7 c6 Nef5 c5 Re7 c7 Bc4 c8N g4+ Ke4 f3 c6 g3 c7 g2 Nd6 g1N c8N Qh3 Nb6 Bh4 Ng6+ Kg7 Nf4 Kf8 Nfg2 Qc5 Nbd5 Qcc8 Ndb4 Qa6 Nd3 Bb5 Kd5 e4 Be5 Bc4+ Kc5 Bb5 Nb2 Bd3 Kd5 Bb5 Nc2 e3 Ke4 Bd3+ Kf4 Bc4 Rd2 e2 Ne4 e1Q Re2 Qd2+ Nce3 Qb8 d8N Qd5 Nb7 Qdd8 Nbd6 Qdb6 Nc1 Nd4 Nd2 Qe6 Bh8 Qe8 Na2 Qbd8 Rd5 Qec8 Be5 Nh3+ Ke4 Ng5+ Kf4 Qh3 N2e4 Ndf5 Bf6 Ng4 Bh8 Re6 Be5 Ke7 f8R Qf7 Rh8 Qff8 Rh5 Ngh6 Nf7 Ke8 Bf6 Re7 Be5
rbrRK2R/1N2R1R1/3bR1n1/nQ1bN1p1/1b5p/NrB3PP/1k4Rn/n7 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 d3 Be2 f5 Bf3 d5 Bg4 d4 Bf3 Qd5 exd5 Bd7 Be4 fxe4 Nh3 Bg4 Ng1 Bc8 Kd2 Kf7 c4 Kf6 b4 Ke5 f4+ Kf5 h3 e5 d6 a5 g3 g5 d7 h5 d8N a4 b6 a3 c5 h4 c6 a2 c7 Kf6 b5 Bb7 c8R Nc6 f5 Bd6 Qa4 Na5 Rc6 Ne7 Na3 Ng6 Nf3 Rg8 Rb1 a1N Rg1 Re8 Rc7 Bd5 Rg7 Bb8 Nb7 Rc8 Rg2 e3+ Kd1 e4 Bd2 Ra6 Ne5 e2+ Ke1 Ra8 Kf2 Re8 Re1 Rc8 Bf4 d2 Qb4 d1R Bd2 d3 Ke3 Bc6 Kd4 e3 Kc5 Rb1 Qc4 Rb3 Re7 Rc7 Kd6 Bd5 Qa4 Rcc3+ Kd7 Rc5 Ke8 Rc4 Rc1 e1B Qb4 Bf2 Re1 e2 Rg7 Bc5 Re7 Bcd6 Re6+ Kg7 f6+ Kg8 f7+ Kg7 Re7 Kf6 Qa4 Kf5 f8R+ Ke4 Rg8 Kd4 Re6 Ra6 Rg7 Ra8 Rf1 e1B Rff7 Nf4 Rfe7 Ng6 Bc1 Kc3 Bd2+ Kb2 Nc5 Bdc7 Bb4+ d2 Rc6 Nf8 Rh6 Rc1 Rh8 Ng6 b7 Ba7+ b8R Rd3 b6 Rb3 b7 Rcc3 Re6 Bd6 Rd8 Rc2 b8R d1N Rbc8 Bab8 Rcc7 Ne3 Nb7 Ng4 Qb5 Nh2 Rce7 Bd2 Bc5 Be1 Be3 Beb4 Bd2 Rc8 Bc3+
1NnRB3/2b1npNr/2P2k1p/1bN2PB1/1rB1nq2/5R2/4N1p1/rR1K1Nb1 b - - 0 1 illegal: No possible last move, all moves rejected
Nn2K2n/rB6/qRnP1R1Q/k7/1RRR1RN1/2pr2b1/p1Pq1pN1/2qb4 b - - 0 1 legal: proof: e4 b5 a4 d5 axb5 dxe4 f4 g5 fxg5 h6 g4 Be6 b3 Qd4 g6 Qf6 g5 Qd4 g7 Bh3 g6 Bc8 Bb2 Qd3 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Ke3 f5 Kd4 e5+ Kd5 c5 d4 a5 h4 g4 b6 f4 b7 f3 h5 a4 b4 f2 b5 a3 b6 c4 h6 c3 h7 e3 Ne2 a2 Rh6 e4 Nd2 g3 Bg2 Qc7 Qh1 Ba3 Rd1 Be7 Nf4 e2 Nc4 e1Q Rd2 Na6 b8R e3 b7 e2 Nb6+ Kd8 Rd1 Ra7 Na8 Qa5+ Kc6 Bd6 d5 Qd2 Qh5 Qc1 Rd4 e1Q Bh1 Qe2 Ng2 Qed2 Qh3 Bc7 Rhh4 Be5 Rhf4 Nh6 g8N Nf7 Nh6 Re8 g7 Nh8 g8R Bc7 Nh4 g2 Rg6 g1N Ng4 Ne2 Rgf6 Re3 Ng2 Rd3 Qh6 Qaa3 Rc4 Qa5 Rfd4 Bg3 Rdf4 Nd4+ Kd6 Nc6 Rd4 Ng6 h8R+ Nf8 Rh7 Ng6 Re7 Nh8 Ree4 Nc5 Rc4 Nd7 Red4 Qa6 Ke6 Ng6 Kf7 Nh8+ Kg7 Nc5 Kf8 Kd7 Nb6+ Kc7 Ke8 Be6 Rd8 Bc8 Rdd6 Nd7 b8R Bb7 Rd8 Bc8 Na8+ Kb7 Rde6 Ndb8 Ree4 Be6 d6 Bf5 Nc7 Kb6 Na8+ Ka5 Rc8 Nd7 Rb8 Be6 Rb1 Ndb8 Rb6 Bf5 Rcb4 Be6 Rdc4 Bd5 Red4 Bf3 Ne1 Bd1 Bd5 Ne5 Bb7 Nec6 Ng2
K5Bb/RBp3n1/qbk1r1P1/1RP1Q2p/R1RRn3/5p2/2b1N1rB/3nq2R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 a4 exf4 axb5 Bc5 Na3 Be7 c5 Bf8 Nc4 dxc4 Kf2 Kd7 Kf3 a5 Ke4 f5+ Kd5 h5 b4 c3 e4 c2 d4 a4 g4 f3 g6 f4 g5 a3 b6 a2 e5 f2 g7 f3 g6 Qe8 b7 Na6 b8R Nh6 g8B Nf7 b5 Rh6 b6 Rh8 b7 Nh6 Qe2 Bg7 Bh3+ Nf5 Bf4 c1B Bh2 f1N Qe1 Ba3 Ne2 Bb4 Qg3 Ra7 Ra8 Ba5 b8R Nd2 Rb5 Ne4 Rac1 a1Q Rc4 Rb7 Ra7 Bb6 Ra4 Rh7 Qe1 Bh8 e6+ Ke7 Qg3 Ng7 Qe5 Bd7 Bg4 Qc8 Rc4 Qe1 Bf5 Kd8 e7+ Ke8 Bh3 Bf5 Kc6 Rb8 d5 Qe6+ d6 Qf6 Kd5 Kd7 e8R Nb4+ Kd4 Na2 Kd5 Rb7 Rea8 Rb8 Raa4 Rd8 R8a7 Nac3+ Kd4 Nd1 Kd5 Re8 Bg4 Re6 Bh3 Kd8 Kc6 Ke8 Kb7 Kd7 Ka8 Kc6 Qf4 Qa1 d7 Qf6 d8R Qa1 Rab4 Qa6 Qe3 Nec3 Rd7 Bc2 Ra4 Ne4 Qd4 Re5 Rd8 Rg5 Bc8 Rg2 Rd5 Ne6 Qe3 Re7 Rdd4 Ng7 Qg5 Re8 Qe5 Re6 Bb7+
B1B1kB1q/1RK1B3/1p6/B2N3N/1Pp4n/N1PQbn1r/rbp1qb2/1qB5 b - - 1 2 legal: proof: f4 e5 fxe5 d5 b3 h5 g4 hxg4 a4 b6 c3 d4 a5 d3 a6 Qd4 Ra2 Qd8 Rc2 Bb7 axb7 dxc2 Kf2 g5 Kg3 f5 d4 c5 h4 a5 e4 a4 e6 c4 e7 a3 d5 a2 h5 a1Q e5 Ra2 h6 Ra8 d6 Ra2 h7 Qc7 d7+ Kf7 e8B+ Ke7 d8B+ Ke6 Bd7+ Kf7 Ne2 Ne7 Bg2 Ng6 Nf4 Nc6 b8B Qc8 Nh5 Nh4 Na3 Nd4 Bd6 Qb1 Ba8 Ndf3 Qd3 Qb8 Be6+ Ke8 B8e7 Bh6 Bc8 f4+ Kf2 Bf8 e6 g3+ Ke2 g2 Bb4 g1B Ba5 g4 b4 Bh6 Bf8 g3 e7 g2 Rh2 Rg8 h8B Bf2 Bf6 g1B Rg2 Be3 Rg7 Bgf2 Rf7 Rg3 Bg5 Qe5 Rh7 Qg7 Bf6 Kf7 e8N Rh3 Nc7 Bg5 Nd5 Ke8 Bd2 Qh8 Rb7 Bh6 B6e7 Ng5 Be1 Bc1 Bd2 Bb2 Bc1 f3+ Kd2 Bg3 Ke3 f2 Bf6 f1Q Kd4 Bf2+ Ke5 Qe2+ Kd6 Ngf3 Kc7 Bhe3 B6e7
nn4Rb/bbN3r1/4p1Bq/2ppkb1Q/5RPR/1RRP3K/1B3b2/r1R2B2 b - - 0 1 illegal: No proof kernel
1NB5/1rRN1Nnp/N3b1p1/2P2r1P/1B1q1p1b/1rkN2nN/b5B1/K3bQ2 b - - 0 1 legal: proof: b4 c5 g4 a5 bxa5 f5 a4 Ra6 f4 Ra8 d4 e6 dxc5 fxg4 f5 e5 Ra3 Nc6 Rf3 Nb8 Rf4 exf4 Kd2 Ke7 Kc3 Kf6 Kb2 Ke5 e4 b5 c4 d5 h4 g3 h5 g2 a6 d4 a5 b4 c6 g6 c7 d3 a7 Kd4 a6 b3 e5 d2 e6 Nh6 f6 Qd6 f7 Qd8 e7 Qd5 e8N Nc6 Ka1 Bc5 f8N Rb8 a8N Bd7 c8B Bb4 a7 Be6 Na3 Ne7 Nd6 Nef5 Nc7 Ng3 a8N Rb7 Nb6 Kc3 Nc2 Qd4 Ne1 Nhf5 Nfd7 Ng7 Nd3 Rf8 Nh3 g1B Na6 Bf2 Ba3 Rf5 Nf7 Ba5 Qf3 d1B Ndb8 Bb4 Bg2 b2+ Ka2 b1R N6d7 Be1 Qf1 Rb3 Ka1 Be7 Rh2 Bc2 Be4 Bh4 Rf2 Bb1 Bg2 Ba2 c5 Ra7 Rb2 Rb6 Rb4 Rc6 Rb7 Rb6 Rc7 Rab7 Qf2 Rb4 Qf1 Rb3 Bb4+
R4qq1/K4N2/1Bp2qRb/nBP3B1/4rp2/2p1NPBb/2k1nN1b/B2R2b1 b - - 0 1 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 h4 gxh4 d4 Bf5 c5 Be6 e5 Bf5 b6 Nd7 b7 Ra6 Qb3 Nb8 Qc4 dxc4 d5 Rd6 exd6 Bc8 Ke2 Kd7 Ke3 h5 Kd4 e5+ Ke3 f5 g4 h3 b4 c3 g5 e4 Kd4 h2 b5 e3 g6 f4 f3 h4 b6 e2 g7 e1B Nd2 h3 Ne2 Qf6+ Kc4 Nc6 Kb5 Bg3 Ka6 Nd4 Ne4 Ne7 g8R Nec6 Rg6 Bh6 Ra2 Re8 Nf2 Re4 Be3 Qf8 Rg1 h1Q Ra1 Bh2 Ng3 Ne2 Nf5 Qg2 Rd1 Ned4 Bb5 Ne2 Bd4 Qg5 Ne3 Qgf6 Rge1 Bg3 Ra1 h2 Red1 h1Q Ra2 Qg2 Ra3 Ke8 d7+ Ke7 d8N Bh3 b8B Bh2 d6+ Kd7 Nf7 Ke6 d7 Qg4 Nc2 Kd5 d8B Qg3 b7 Qgg5 Ba4 Kc4 Ba7 Qg4 b8B Qge6 Ng5 Qeg8 Ne3+ Kb4 Ng2 Kc4 Bb5+ Kb4 Raa1 Kb3 Nf7 Kc2 Ne3+ Kb3 Ng5 Qf5 Nf1 Kc2 B4f6 a4 Nf7 Re3 Bh4 Qg5 Bb6 Re4 Bg3 Qf5 Bg5 Qf6 Nh1 a3 Ba5 a2 Bb4 Re6 Ba7 Re3 Bb6 Re4 Rab1 a1B Ba3 Bb2 Ra1 Bc1 Bb2 Bd2 Ra4 Be3 Ba1 Beg1 Nf2 Nb8+ Kb7 Nc6 Ra8 Na5+ Ka7 c6 Ne3+
1rrn4/2p1k1BR/K1P4B/p2R1n2/1b1R1q1p/RN3b1P/2p1R1rN/B1r3N1 b - - 0 2 legal: proof: c4 d5 e4 f5 exf5 b5 a4 Kf7 axb5 Be6 c5 Ke8 Qc2 Bc8 f4 g6 f6 Bh6 f5 Bf8 f7+ Kd7 Bc4 dxc4 f6 Bh6 Qe4 Bf8 Qf5+ gxf5 Ke2 e5 b4 h5 d4 a5 g4 f4 g5 e4 g6 c3 c6+ Ke6 d5+ Kd6 b6 c2 b5 e3 Kd3 f3 Kc4 f2 b7 f1R b6 e2 Kb5 e1R g7 Qd7 Ra3 Ra6 Nd2 Ne7 g8N Bg7 f8B Qg4 f7 Rf4 Nb3 Rf5 Bh6 Qd1 Nf6 Qf3 Ng4 Bb2 Bfg7 Rc1 f8B Nd7 b8R Qf4 b7 Bc3 h3 h4 Rh2 Ra8 Re2 Bb4 Nh2 Rf7 Ba1 Nc5 Bfg7 Bg4 Re8 Rff8 b8R Nf5 R8e4 Nb7 Rd4 Rfg8 Rc8 Rb8 Ka6 Bf3 Rce8 Qe3 Rf8 Ke7 d6+ Ke6 d7 Ke7 Rf6 Nd8 Rfd6 Rc8 R6d5 Qe4 Rf2 Qf4 Re2+ Ne6 d8R Rb8 Be5 Rg2 Beg7 Re8 R8d6 Rec8 Rd8 Rf2 Rh8 Rg2 Rf2 Nd8 Rh7 Nd6 Rfd2 Nf5 Re2+
7B/1PB1Q2N/1r1n2K1/2kNRpB1/N7/1q1qqNr1/1Pn5/n1rBb1B1 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 a5 a4 b5 axb5 Bd6 Nf3 Be7 Ng1 Bf8 b6 c5 d3 c4 Qc2 a4 Nd2 c3 Ra2 a3 Nb1 Ba6 Qd1 Bc4 Ra1 a2 dxc4 Ne7 Na3 Ng8 Rb1 axb1Q Kf2 Ke7 Kf3 Kd6 Kg4 g5 e4 f6 Kf5 f3 h4 g4 b7 c2 e5+ Kc5 d6 f2 h6 g3 h7 g2 h5 Bh6 d7 Bf4 e6 Qa2 h6 Qa5 d8B Qa1 e7 Bg3 e8N Bh4 Nb5 Q1a4 Qd7 Ra6 Bc7 Qc3 Kg6 f5+ Nf6 Qaa5 Nf3 g1R+ Bg5 c1N Be2 f1Q Bd1 Qe3 Nc3 Qa3 Qe7+ Rd6 Rh2 Qb3 Re2 Nc6 Re1 Nd4 Re2 Kb4 c5 Rg3 c6 Nc2 Re1 Qfd3 Re2 Qc5 Re5 Qcd4 Bb8 Qc5 c7 Rb6 c8N Kc4 Bc7 Qce3 Qe8 Kb4 Ne7 Kc4 Ned5 Ne7+ Kf7 Rg8 h8B Nc8 Nh7 Kc5 Qe7+ Nd6+ Kf6 Rc8 Kg6 Na1 Bg7 Ne2 Bf8 Nd4 Bg7 Rh3 Bh8 Be1 Bhf6 Qf2 Be3 Qfe2 Bg1 Rg3+ Bg5 Qde3 Nf8 Q2d3 h7 Ndc2 h8B Ra8 Nh7 Ra4 Qd7 Rc4 Qe7 Nd4 Nb5 Rc1 Nbc3 Ndc2 Na4+
k2R1R1B/1qBbB2B/1b1K4/pqP4r/2r1P2B/1R2b1Q1/n2NR3/1q5b b - - 0 1 legal: proof: f4 a5 b4 b5 c4 h5 a4 c5 axb5 e5 fxe5 h4 b6 h3 b5 Na6 bxa6 Rh4 Nc3 Rh8 d4 cxd4 gxh3 dxc3 h4 Ke7 h5 Ke8 Kf2 g5 Ke3 f5 Kd4 d5 h4 Kd7 b7 Kc7 e6 Kb8 Ke5 g4 h6 c2 h7 f4 h5 g3 h6 d4 e7 f3 e8R g2 Rh2 d3 Ra3 d2 Rb3 f2 Nf3 g1Q Qe1 d1B Bg5 c1B Nd2 Qb6 Be7 Nf6 Rd8 Nd5 e4 Qc6 Bh3 f1Q Re2 Nc3 Qg3 Na2 Bf5 Qcb6 Bh4 Bc5 Bg6 Qb5 Bf5 Bf2+ Kd6 Bb6 Bg6 Qf7 c5 Ka7 Be7 Bd7 Bf5 Rc8 b8B+ Ka8 a7 Qf1 Rf8 Re8 Bh4 Re5 Bg6 Rh5 Rd8 Rf8 h8B Qg7 h7 Rf3 Rf8 Rc3 Bf5 Qf7 B8f6 Rc4 h8B Qg1 Bh7 Qg7 Nf1 Be3 Nd2 Qf1 Be7 Qgf7 Re1 Bf3 Re2 Bh1 Rd8 Kb7 a8R Qb1 Bc7 Qg7 Rac8 Qgb2 Bb8 Ka8 Rf8 Qa6 Rcd8 Qb7 Rd3 Qb4 Rb3 Qb5 Bc7+
5q1R/R4Qqq/1p2nP2/NbbP1R2/2NR1nn1/4Rb2/1R1K1b2/1Q3kB1 b - - 0 1 legal: proof: e4 f5 c4 d5 a4 g5 cxd5 b6 exf5 h6 f6 Qd6 f7+ Kd8 f4 Na6 g4 Nb8 a5 Qd7 a6 h5 Bh3 Rh6 b4 Rf6 b5 Rf5 gxf5 Qe8 Bg4 Kd7 f6+ hxg4 f5 Qd8 Qa4 Nc6 Qd1 Rb8 Kf2 Rb7 axb7 Nb8 Ke2 a6 Kf1 axb5 Ke1 b4 h4 Kd6 d4 e5 h5 c5 h6 g3 h7 e4 h8R c4 Qa4 c3 Bb2 g4 Nf3 c2 Qa8 c1N R8h3 g2 Rh7 g1Q+ Kd2 b3 R1h3 e3+ Kc3 e2 Nh2 e1Q+ Nd2 g3 Nf1 g2 Ra2 Nc6 b8R Nd3 Re3 Qb1 Bc1 b2 Nb3 Nh6 Na5 Be7 f8Q Bd7 f7 Ng4 Nd2 Nf4 Qe8 Bh4 f8R Bf2 Qf7 Qe7 Rhh8 Nd8 Rb7 Bb5 Ra7 Nde6 Qc8 Qe4 Qa8 b1B Rb2 Qf1 Qae8 g1B Qh7 Bh4 Qef7 Bhf2 Qh1 Qe5 Qe4 Ba2 Qb1 Qg7 Kc2 Bac4 Kc3 Bc6 Kc2 B4b5 Kc3 Bb7 Ndc4+ Kc7 d6+ Kd7 Nb3 Kc6 d7 Kd5 Nba5 Qh4 Kd2 Qhh7 Rd3 Ke4 d8R Qfh3 Rd5 Q3h6 f6 B7c6 Rfd8 Qf8 Rf5 Q6g7 Kc2 Bd5 Be3 Kf3 Kd2 Kg2 Re8 Be4 d5 Bf3 Rd4 Be1+ Kc1+ Kf1 Bf2 Bb4 Ree7 Bc5 Kd2+ Bd1 Be3 Bf2 Re8 Bg3 Bg1 Bf2 Qc2 Bf3 Qb3 Nd8 Re3 Nde6 Qd1+ Kg2 Qc2 Kf1 Qb1+
2NqN1qN/B2pN2r/kb2B3/BqN1r2B/b5PK/r1q2b2/2PQ2R1/8 b - - 0 1 legal: proof: d4 a5 b4 c5 e4 cxd4 a3 f5 exf5 Nc6 a4 b5 axb5 a4 Kd2 Na5 Ke2 Nc4 Ke1 Na5 bxa5 g5 g4 Bb7 f4 Bg7 h4 Nh6 f6 Bc8 f5 Nf7 Ra3 Bh6 Rf3 Bf8 Rf4 gxf4 Nh3 Ra7 Ng1 Ng5 hxg5 Ra8 Kf2 e5 a6 h5 f7+ Ke7 f6+ Kd6 g6 Kc7 g7 Kb6 g8B h4 a7 f3 Bd3 e4 Nh3 a3 Bd2 a2 Nf4 a1R Ng6 h3 Kg3 e3 Na3 e2 Nc4+ Kb7 b6 h2 Rg1 h1B Ba5 f2 Ne7 e1Q Bg6 d3 Qd2 Bh6 f8N Bf3 f7 Ra3 Rg2 Be3 Bh5 Ka6 b7 Rh7 b8B Bcb7 Kh4 Bb6 Ng6 Bbc6 f8N Ba4 Nd6 Qe5 Nh8 f1Q Bf7 Qc3 Ne8 Qb1 Ne6 Qb5 Bf4 Rc8 a8N Rc5 Bb8 Rd5 Ba7 Re5 Qf4 d2 Qh2 Bc7 Nb6 d1Q Nc8 Bb6 Qf4 Qdd3 Qd2 Qg6 Bg8 Qbd3 Bf7 Qg8 Nc5+ Kb5 Nb7 Ka6 Be6 Qb5 Nc5+
2Qrr3/K2Q1N1r/4k3/QR2B3/1Nbr2P1/1Q1p1pn1/1BrQ1QP1/1qr5 b - - 0 1 illegal: No possible last move, all moves rejected
3B1bQr/2rBNB2/4N3/P1p1r1nB/1P1B1r1N/2NK1p2/5R2/2q1rr1k b - - 0 1 legal: proof: f4 e5 b4 exf4 c4 g5 h4 d5 hxg5 Be7 cxd5 Bf8 Nh3 a5 Rh2 a4 Rh1 a3 Ng1 Bf5 Nf3 Bc2 Ng1 Bb3 axb3 Bh6 Kf2 Bg7 Ke1 Bf8 Ra2 b5 Rc2 Ra6 Rc4 Nc6 Rd4 Na5 bxa5 Ra8 Ra4 bxa4 b4 Qc8 Rh3 Qd7 Rh1 Qd8 d4 Kd7 Kd2 Kd6 e4 c5 g4 f5 g6 h5 g7 a2 g5 a1R g6 a3 Nf3 a2 Nc3 h4 Be2 h3 Kd3 h2 Nh4 f3 Rf1 h1R Bb2 f2 Bh5 f4 Qb3 Nf6 g8N f3 g7 Qd7 Ne7 Re1 g8B a1R Bgf7 Rc8 Qc4 Nh7 e5+ Kc7 e6 Re5 Qb3 Ng5 Qa2 Rae1 d6+ Kb7 d5 Rc7 Qc4 Qa4 d7 Qa3 Ba1 Qc1 d8B R1e4 d6 Rf4 d7 Rg1 Ng8 Kc6 e7 Kd6 e8B Rh1 Ne7 Rg1 Rd1 Rge1 Rd2 f1R Rh2 R5e4 Rf2 Ke5 Nef5 Rg4 Ne7 Kf4 Qe6 Kg3 Qg6 Re5 Qg8 Rh6 Na4 Rh7 Bd4 Rh8 Nc3 Rf4 Be6 Rff5 B8f7 Rf4 Bh3 Bg7 Bhe6 Rc8 Bb6 Rc6 d8N Bf8 Bd7 Rc8 Ng2 Kh2 Ne6 Kh1 Bd8 Rc7 Nh4
1r1NbN2/pk6/1qQK2n1/1R2RN2/b1BPN1q1/Q3PN1N/2p1p3/3q3n b - - 0 1 illegal: No possible last move
3R4/2r2P1B/7p/B1B1Bk2/1B4pR/3p1Nqp/p1n1bQnP/Q1K3bB b - - 0 1 legal: proof: c4 c5 a4 d5 e4 b5 axb5 f5 g4 fxg4 d4 Qd6 dxc5 d4 Qb3 Nd7 Qd1 Qd5 exd5 Nb8 b4 a5 c6 a4 c5 Nf6 b6 Nbd7 b5 Ra7 Nh3 gxh3 Nd2 Ng8 Nf3 Nb8 Ng1 Rb7 cxb7 Bf5 Bb2 Bd7 Bc1 Bc8 Kd2 Kf7 f4 Kf6 d6 e5 d7 g5 d8B+ Kf5 c6 h6 c7 a3 Bg2 e4 Nf3 Bd7 c8B Ke6 f5+ Kd5 f6 Bc6 Be6+ Kd6 Rb1 a2 Rb4 Bd7 Ba3 e3+ Kc1 Ne7 Bg8 e2 f7 Na6 b8B+ Ke6 b7 e1Q b6 Qg1 Be5 Kf5 b8Q Ng6 b7 Bc5 Ba5 Bb5 Qa7 Nf4 b8B Be2 Bbd6 Bb6 Ra4 Nb4 Bc5 Nc2 B3b4 Qe1 Rg1 d3 Bh1 Qg3 Qe1 Ng2 Qc3 Rh7 Qa1 Rg7 Re1 Rg6 Rg1 Rc6 Re1 Bf1 Re4 Be2 Rd4 Rc7 Rd8 Rb7 Bf8 Bg1 Qf2 Rd7 Bbc5 Rc7 Rh4 g4 Bcb4 Nge3 Bfc5 Ng2 Bh7+
2q2n2/K1B1RP1q/1B3Bq1/5Q1R/n1N2BQb/r5q1/4BbPr/4Bknq b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 a4 g6 axb5 Be6 e4 Bc8 h3 g5 Nc3 Be6 Nce2 fxe4 f5 Bf7 Nf4 gxf4 Rh2 Bh5 Rh1 Bg4 hxg4 Qc8 Qe2 Qd7 Qd1 Qd8 Ke2 Kd7 b4 Kd6 d4 e5 g5 h5 f6 c5 f7 a5 b6 c4 g6 a4 b5 c3 g7 c2 b7 h4 b6 f3+ Ke3 a3 Rh3 a2 Bd3 f2 Rh2 f1Q Bb2 c1N Qe2 h3 Rb1 a1Q Qh5 Ra3 Bc3 Nd7 Be2 Nc5 Ba6 Qc8 Be2 Qf6 Rb5 Be7 Qf5 Qg6 Nf3 Bh4 Nd2 Ne7 g8Q Na4 Rb1 Qh7 Qgg4 Ng6 Rb2 Qb1 b8B+ Qc7 b7 Nf8 Ba7 Qc8 Bb6 Qg6 Rh1 h2 Rb5 Rh7 Re1 h1Q b8B+ Qc7 Bd1 Ne2 Rc5 Ng1 Be2 Bf6 Rb5 Rh2 Ra5 Bh4 Nc4+ Ke7 Rb5 Qc8 Ra5 Qh7 B6c7 Qb6 Rb5 Qbe6 d6+ Kd7 Ra5 Kc6 d7 Qeg6 d8B Bf2+ Kd2 e3+ Kd3 Bh4 Bf6 Bf2 Bb6 Bh4 B8c7 Bf2 Bg5 Bh4 Bf4 e4+ Kc2 Bf2 Re5 Bh4 d5+ Kb5 Re7 Bf2 Bf6 Bh4 d6+ Kb4 d7 Bf2 Bf1 e2 d8B e3 Rc1 e1B Be2 Bh4 Rd1 Bef2 Rd5 Nc3 Kd3 Na4+ Kd4 Kb3 Qe6 Kc2 Rh5 Kc1 Kd5 Kc2 Kc6 Kc1 Nb2 Kd2 Nc4+ Ke1 Kb5 Rh3 Qef5 Rh2 Bd1 e2 Bc3+ Kf1 Be1 Qce6 Ka6 Qd7 Ka7 Qc8 Bc3 e1Q Bf6 Bfg3 Bf2 Qc3 Be1 Bf2+ Bb6 Qe3 Bdc7 Qg3 Be2+
nk4rN/1nNb2Rr/4R3/1n1q1bQ1/R1nP1B2/N1n3KR/1n2P1N1/2n3R1 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Bd6 Qa4 Bf4 gxf4 hxg4 Kd3 Qe7 Qd1 Qf6 Kc2 Qd8 Kd3 Kd7 Ke3 f1N+ Kf2 c5 b4 Kc7 h4 g5 f5 a5 d3 c4 f6 c3 h5 g3+ Ke1 a4 f7 g2 Kf2 g4 f8R c2 h6 a3 h7 g3+ Ke1 a2 Rh5 Bd7 Be3 c1N Rf4 Nd2 Nh3 g1N Na3 g2 Kf2 Ne7 Kg3 Na6 d6+ Kb8 b6 f2 b5 f1B b7 Nc7 Ra4 Ned5 Bf4 Nc4 Qd2 Nf3 Qe3 Bf5 d7 g1N Rg5 Nb2 Rg7 Qg8 d8N Nc3 Ne6 Nd2 Rb1 a1N d4 Ndb3 Qe5 Nc2 Qf6 Ra7 Qg5 Na5 Ra1 Qd8 Rb1 Re8 h8N Nf3 Ra1 Qd6 Rb1 Na8 Nc7 Nd2 Ra1 Ra6 Rb1 Qd5 Ra1 Ka7 b8R Rg8 Re8 Rh6 Re6 Ndc4 b6+ Kb8 b7 Rh7 Rb1 N2e3 Ra1 Nd6 Rb1 Ndb5 Ra1 Ka7 b8R Nec4 Rbb6 Bg2 Rh6 Bh1 Rbe6 Kb8 Rh4 Nb7 Rb1 Nb3 Rg1 Nc1 Bd2 Qd7 Nf4 Bc6 Ng2 Qd5 Bf4 Bd7 Rh3
2q4R/r1QRR2q/1b1NB3/4RB2/5bPn/1rB1Br2/1b2B1Pq/2rnK2k b - - 0 1 legal: proof: d4 c5 dxc5 b5 f4 f5 a4 Bb7 axb5 Bf3 e4 Bg4 h3 g6 Nc3 g5 hxg4 fxe4 f5 Na6 Nd5 Nb8 Nf4 gxf4 b4 Kf7 c4 Kf6 c6 Ke5 b6 a5 c7 d5 c8B h5 b5 e3 c5 e2 f6 a4 b7 f3 b6 d4 c6 d3 c7 a3 f7 d2+ Kf2 Kf4 Ra2 e1R Ba6 e5 Qc2 h4 Bf5 h3 c8B h2 Qd3 e4 Rc2 a2 Qb5 a1B Bce6 Rh3 Qd3 Nh6 Rc8 Bd6 f8R Ra7 Rf6 Bb2 Bd5 Nc6 b8R Ne7 b7 Ng6 Qb3 Nh4 Rc4 Qc8 Bg6+ N6f5 Re6 Ne3 Qa4 d1Q Rd4 Qd3 Qc2 Be5 Bd2 Rc1 Bc3 Nd1+ Ke1 Kg3 Bf5 e3 Re7 e2 Bde6 Bf4 Rdd7 Qe4 Ra8 Qe5 b8B Qeh8 Bd2 Qh7 Be3 f2+ Kd2 f1R Nf3 Ba1 Nd4 Bb2 Qc7 Rf3 Re1 h1Q Nb5 Kh2 Nd6 Qg1 Bad3 Kh1 Bb5 Ra3 Ba7 Raa1 Bd4 Ra7 Bc3 Rhg3 Rf1 e1B+ Ke2 Bf2 Re1 Rh3 Kd2 Rhg3 Re2 Qh2 Rb8 Qb7 Rh8 Qc8 Ba6 Bg1 Ke1 Rh3 Bb6 Rhg3 Re5 Bc5 Be2 Rh3 Bba5 Bb6 Bd2 Rb3 Be3 Rf3 Bc3
rqQ2KR1/n1P4R/1Rr1N2R/4nN1N/4Bn2/Pb1qr3/k1q1r3/1R1n2N1 b - - 0 1 legal: proof: g4 c5 f4 f5 e4 a5 b4 axb4 g5 e6 exf5 h6 d4 Na6 dxc5 Be7 Bb2 Bf6 Bd4 Qe7 gxf6 Qd8 Bf2 Nb8 Bh4 Kf7 Bg5 hxg5 Qh5+ Kf8 Qd1 Ke8 Kf2 Kf7 Kg3 b5 Kg4 d5 h4 d4 c4 e5 h5 d3 a3 e4 c6 d2 h6 e3 Kh5 g4 c5 g5 h7 e2 c7 e1R c6 b3 Rh3 b4 Rd3 g3 Be2 b2 Bf3 g2 Rb3 g4 Be4 g3 Nc3 b1Q Qc2 d1N Kg5 Qd3 Nd5 Ne7 Kh6 Re8 h8R Be6 c8N Ng6 Nce7 Re2 c7 Qb2 Rb1 Nc6 Qd2 Qbc2 Rh7+ Kf8 f7 Nge5 Qc3 Na7 Nf6 Re3 R3b2 b3 Nh5 Re2 Qa5 Bd5 Qa6 Be6 Nf3 g1N Qc8 Nh3 Ng1 g2 Nc6 Qc1 Nd4 Ke7 Kg7 Kd6 f8R Kc5 f6 Kc4 f7 Qcc2 f5 Nf4 Rfh8 Re3 f8R Re2 Ra2 b2 f6 Bg8 Nf5 Kb3 f7 Re6 Rh6 Rc6 R8h7 Re3 Rba1 b1Q Rd8 Qbb2 f8N Qbb1 Ne6 Qbb2 Nf3 g1R+ Kf8 Rge1 Ng1 R1e2 Rc1 Qbb1 Ra1 Qbb2 Rab1 Ka2 Re8 Qb7 Rb6 Qb8 Rcb1 Bf7 Ng5 Bb3 Ne6 Nc3 Ke7 Nd1 Rg8 Rc3 Ke8 Rc6 Kf8
1k1B4/rb2bbB1/n4N2/r3B2B/BnnQ2P1/RRP4Q/2nbK1n1/r3B3 b - - 0 1 illegal: No possible last move, all moves rejected
4r2k/rR1N2Br/2NKb2n/1B1BP1nB/N1pN4/3bP1b1/q7/r2Q2rN b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 e5 fxe5 b5 axb5 Qe7 Kf2 Qf6+ Ke1 Qd8 h4 g5 hxg5 a5 b4 Bd7 b6 Nf6 b5 Bc8 Ra4 Ng8 Rb4 axb4 Kf2 c5 Kf3 h5 Ke4 f6 d4 Kf7 g4 Kg7 g6 h4 b7 h3 b6 c3 g5 h2 d5 c2 e3 b3 d6 b2 Kd5 f5 d7 f4 Bb5 f3 Nh3 f2 Nc3 f1B Na4 b1R Nf2 c4 Ba3 Qc7 d8N c1R Nc6 Bd3 Nd4 Nc6 b8N Ra7 b7 Nh6 Nd7 Qd8 b8N Qa5 Rf1 Ra1 Nh1 Kg8 g7 Be7 Rf7 Nd8 Nbc6 Ne6 Bd6 Bf6 Bf8 Qd2 Re7 Qa2 Kd6 Kh7 Rf7 Bd8 Re7 Ba5 Rf7 Be1 Re7 Bg3 g8B+ Kg6 Bf7+ Kh7 Bh5+ Kg8 g6 Ng5 Nf2 h1R g7 Rh7 Rf7 Rg1 Nh1 Rcb1 Ndb6 Be6 Rb7 Rb2 Nd7 Rh2 Bg6 Rh8 Bh5 Kh7 Be7 Rha8 g8B+ Kh8 Bf8 Re8 Bgf7 Bef5 Bd5 Be6 Qe2 Rf2 Qe1 Rf7 Qd1 Rh7 Bg7+
2R3Qb/1Q2brP1/QR1b3r/K4P2/Q1bB4/1Nrp1Q1q/Bnkb4/2Q2n2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 g4 h5 g5 g6 Nc3 Ba6 Ne4 Bc8 Nf2 Ba6 fxg6 Bc8 Ng4 hxg4 f5 Rh7 Ra3 Rh6 Ra1 Rh8 Kd2 e5 b4 Ke7 c4 Kd6 h4 a5 g7 g3 c5+ Kd5 b6 Ke4 h5 d5 g6 d3 Kc3 a4 b7 g2 h6 a3 b5 a2 Kb4 d2 h7 d4 b6 Ra7 Ba6 Nf6 g8Q Bd6 Rh4+ Ng4 Rh1 Qh4 Kb5 Kd3 c6 e4 c7 e3 Qa4 d1R Nf3 g1B Bb2 e2 Nd2 e1B Nb3 Nd7 b8Q Rc1 b7 Nb6 Rb1 a1B Qa8 Nh2 b8Q Bd2 Qbb7 Rc3 Ka5+ Kc2 Qgd5 d3 Qf3 Be6 c8Q Bgc5 Qcc6 Rg8 h8Q Bc4 Rhd1 Rc8 Qg8 Qh3 Re1 Nf1 Re8 Rc7 Rc8 Rf7 Qcc7 Bd4 Qcc6 Bh8 g7 Rf6 Qbb8 Re7 Qbb7 Rh6 Bb5 Rf7 Qaa6 Nd5 Qcc7 Nde3 Bc6 Nd1 Bd5 Be3 Ba3 Nb2 Bc5 Bd2 Bd4 Rh5 Re1 Be7 Re6 Rh6 Rb6 Bb5 Qcg3 Rcc6+ Bc3 Nd1 Qe1 Bb2 Bc4 Bba3 Be6 Bad6 Nc5+ Kb1 Ba2+ Kc1 Qeg3 Nb2 Nb3+ Kc2 Qe1 Rc7 Bb4 Rc3 Bc5 Bc4 Bd4 B6f4 Qa1 Bfd6 Qc1+
1b2Nq2/R6B/2Bn4/1k2K2n/4P1Nr/4nrNN/npbQ2rP/1b2Q1NN b - - 0 1 legal: proof: c4 a5 b4 g5 bxa5 e5 f4 d5 fxe5 Bb4 cxd5 Na6 a4 Nb8 Ra2 Bd6 Rb2 Bf8 g4 h6 Rb4 Qd7 Rf4 Qd8 Ba3 Be6 Be7 gxf4 g5 Bd7 g6 Bc8 Bg5 hxg5 Kf2 Kd7 Kf3 c5 Ke4 b5 d4 f6 d6 Kc6 d7 c4 d5+ Kc5 e6 b4 e7 c3 e8N c2 g7 c1N a6 f3 d6 f2 a7 b3 a5 b2 a6 g4 Qd2 f5+ Ke5 g3 Nc3 g2 Ne4+ Kb5 Ng3 Nh6 g8N f4 Ngf6 f3 Nfe4 Nf5 Qe1 Bg7+ N8f6 Qf8 d8Q Na2 d7 Bh6 Ng4 Nd6 Qg5 Rh7 d8N Bf5 Qgd2 Nd7+ Kd4 Rb8 a8N Bf4 a7 Rh4 Ne6 Nf6 N6g5 Nh5 N5h3 Rc8 Kd5 Bg6 Ke6 Rc3 e3+ Rd3 Be2 f1B Nef2 Be4 Bd1 Rb3 Bc2 Bfd3 Bb1 Bc2 Nc7+ Kc6 Ne8 Kb5 a8B Bh7 N1e2 g1R Bb7 Rg2 Neg1 Nf5 Kd5 Bb8 Ba8 Nd6 Ke5 Bd1 Bbe4 Bc2 Bad5 Bb1 Bg8 Bf5 Bh7 Ra3 Bd5 Bfc2 e4 Rc3 Nd3 f2 Bb7 f1N Ndf2 Ne3 Bc6+ Ka6 N1e2 Bb3 Rg1 Ka5 Nfh1 B3c2 Rf1 Kb6 Rf7 Ka6 Neg1 Ra3 Bb7+ Kb5 Rc7 Nd1 Ba8 Rf3 Ra7 Ne3 Bc6+
1KRbb3/2QN2R1/k4p1R/R1qB4/3nr3/1B1nr1PP/2b5/RQ1n1bRr b - - 0 1 illegal: No possible last move, all moves rejected
1NB2r2/5b2/n1N1P3/Q3Pqkb/b1BK1B2/r1r1nqNB/1R1pBN2/2b5 b - - 0 1 illegal: No possible last move
6qb/N1N3B1/1r1pn2P/K6k/R3P1q1/1bRb1bqQ/1nR2N1R/r5NR b - - 0 1 illegal: No possible last move, all moves rejected
Nr2Nb1B/1q1r1P1P/NQB2n2/1BqnR2B/1B4p1/1K1b3q/1N1q1r1k/8 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 e5 dxe6 f6 d5 f5 e4 Ba3 e5 Bd6 Ra4 Bc5 Re4 fxe4 b4 Bf8 Kd2 Ke7 Kc3 a5 f4 g5 h4 c5 d6+ Ke8 e7 Kf7 e8B+ Ke6 b6 Kf5 b7 a4 d7 a3 b5 c4 e6 e3 b6 a2 h5 a1R e7 g3 h6 g4 h7 g2 Qd6 e2 Nf3 g1Q Nh4+ Ke4 f5 e1Q+ Nd2+ Ke3 f6 Kf2 Ba3 Qg2 Bh5 Ra4 e8B Ra2 f7 Ra6 Bb4 Qd1 Nf5 Nf6 Ng7 Qc7 d8B Ra7 Bc6 Bf5 Ne8 Nbd7 b8N Qb7 Na6 Bd3 Nac7 Qh3 Na8 Qe2 Rh2+ Kg1 Qe6 Qee3 Re2 Qc5 Re5 Kh2 Be7 Qc8 b7 Nb6 b8N Rd7 Na6 Qb7 Bfg2 Rb2 Bb5 Rg8 Bgc6 Ra2 Nb1 Rf2 Nd2 Nbd5+ Kb2 c3+ Kb3 c2 Nc4 c1Q Nb2 Qd2 Bd6 Bh6 Bf8 Rh8 Bg7 Rg8 Bh8 Bg7 Nec7 Rb8 Ne8 Bf8 Qd6 Re7 Qd8 Rd7 Qb6
2r3QK/1br5/kR1Q3n/2pnB1QN/q2r4/BrPQ2rq/1Q3P1Q/5Nn1 b - - 0 1 illegal: No possible last move, all moves rejected
1b1k4/R5Np/1r2B2Q/1Rnr2N1/1Pq3q1/NNnq2N1/1P4RK/2q1qrR1 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 a3 exf4 Qc2 b5 Qd1 b4 axb4 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Qf6 d3 Qd8 Be3 Bf5 Kd2 f3 Bf4 gxf4 h3 f2 g5 Bg4 hxg4 Ke7 Qc1 Kd7 Qd1 Ke8 e4 f5 Ke2 a5 Kf3 c5 Kg2 f3+ Kh2 c4 d6 c3 e5 c2 d4 c1Q e6 f4 d5 a4 g6 a3 g7 a2 e7 Qd7 g5 Qa4 d7+ Kf7 d8N+ Ke8 d6 Ra7 g6 Rb7 Bh3 f1Q Be6 f2 Na3 f3 Ne2 Na6 Rg1 Nf6 g8R Ne4 g7 Qd7 Ng3 Qfc4 Nf7 f1Q Ng5 f2 Qd2 Qfd3 Qf4 f1Q Qf6 Qfe1 Qh6 Rb5 Nf1 Qa7 Nb1 Qed1 Nf3 Qae3 N3d2 Rb6 Nb3 Nc3 Rg5 Qdf3 Rb5 Qce1 Bh3 Qed1 d7+ Kf7 e8N Ke7 d8N Nc5 Ne6 Kd7 Bg4 Bd6+ Nf4+ Ke7 Bh3 Bb8 Be6 Ba7 Nh3 Qh5 Rf8 Bb8+ Rf4 Rf8 g8R Kd8 Rg2 Rf5 Ng7 Rd5 Ng3 Qhg4 Ng5 Qf2 Na3 Q1d2 Rg1 a1R N3e4 Rf1 Ng3 Qfe1 Rf7 Qdc1 Ra7
1nnk2NK/q2P4/2bN4/N4P2/p1Nrb3/1n1nqnQ1/RN1QNb2/1BR5 b - - 0 1 legal: proof: f4 f5 a4 b5 axb5 d5 e4 fxe4 c4 g5 cxd5 Bh6 b3 Qd7 f5 Qd6 Bb2 Qd8 Be5 Bf8 g4 a5 h4 Ba6 h5 Bc8 Bf4 gxf4 g5 Ra7 Bh3 Ra6 Bf1 Rg6 hxg6 Qd6 Rh3 Qd7 Rh1 Qd8 Ke2 c5 d4 e5 b6 h5 d6 a4 d7+ Ke7 g7 h4 b7 h3 b4 c4 d5 e3 Kf3 c3 Ke4 c2 d6+ Kf7 g6+ Kf6 b5 c1Q b6 h2 Nd2 e2 Nc4 e1N Ne2 f3 Nb2 f2 Ra2 Qe7 d8N Nd3 Nf7 Bd7 Qd2 Rh4+ Kd5 e4 Rg1 Nh6 g8Q h1B g7 e3+ Bg2 f1N Be4 Bb5 d7 Qc7 Nd6 Bc6+ Kd4 Bf3 Qb3 Nf7 Rh1 Qe6 Qbc3 Ke7 g8N+ Kd8 Rg1 Nf4 Bb1 Bfe4 Qb3 Nd3 Qa3 Na6 b8N Qa7 Qac3 Be7 Qb3 Rg4 Qa3 Bh4 Qac3 Ng3 Rc1 Nf1 Qa3 Bf2 Qb3 Ndc5 b7 Nh2 Qbd3 Ne5 Qa3 Ng6 Qb3 Qe8 Qa3 Ne7 Ke5 Nf3+ Kf6 Rf4 Kg7 Nc8 Kh8 Rg4 Qac3 Nb3 Qe5 Bc2 Qg7 Rd4 Qg3 B2e4 Nbc4 Nc7 Na6 Qe7 Nc5 Na6 Nd3 Nb8 Nc3 e2 Ndb2 e1N Ne2 Na6 b8N Qg5 Nh6 Qe3 Ng8 Nc7 Na6 Nd3 Nc5 Na6 Ncb7+ Kc7 Qg1 Nb8 Nba5 Kd8 Qg3
5b2/2B1R1N1/BpP1KR2/BqR5/1rR1n2P/k2QR1b1/1rB1r2q/1br4q b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Kf7 b4 axb4 f6 Ke6 g4 Ke5 f7 Ke6 Kd2 Kd5 Ke1+ Kc6 f4 h6 g5 Na6 f5 Nc7 Nc3 Nd5 Ne4 Ndf6 gxf6 h5 Nf2 Rh7 Ng4 hxg4 Rb1 Rh4 Ra1 Rh8 Ke2 Kb5 Ke3+ Ka4 Kf4 g5+ Ke5 d5 h4 b6 c4+ b3 c6 d4 c7 g3 c5 e6 Ne2 d3 Bf4 d2 Rc1 g4 Rh3 g2 Rc4+ Ka3 Nd4 g1B Re3 Bd7 c8R g3 Rc7 Ba4 Re7 g2 Qb1 d1R Qd3 Bf2 c6 Bh6 f8R g1Q f7 Qh2 f6 Bg3 Nf5 Rc1 Ng7 Qc8 Rd8 Qa6 f8B Qb5+ Rd5 Rd8 f7 Nf6 Bg2 Ne4 Rdc5 Rd4 Bf3 Rg8 Bd1 Rh8 Qe2 Rd2 Qd3 Rb2 Bc2 Nf2 Kf6 e5 Ke6 e4 Bc7 Rg8 Rf3 e3 Bd1 e2 Re3 e1Q Bc2 Qa6 Bd1 Re2 Bc2 Kb2 a3 Bb5 a4 Ka3 a5 Qeh1 Bd1 Ba4 Bc2 Qb5 a6 Ne4 a7 Rh8 a8B Rg8 Bd1 Rb2 Bb7 Re2 Nh5 Rg4 Ba6 Rf4 Bg7 Rff2 Bge5 Bf8 Bc3 b2 Ng7 b1R Bb3 Reb2 Bd2 Re2 Ba5 Nc3 Ba2 Bc2 Bb3 Ne4 Nh5 Bg7 f8R Bh6 Rf6 Bg7 Qd2 Bf8 Ng7 Bd3 Bc2 Rb4 Bb3 Rb2 Qd1 Bc2 Qd3 Bb1 Bc2+
4N2n/2Kbk1pb/BN2B3/3r4/n2bQrQn/4B1b1/B2P2PB/1rbRB3 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 b5 a4 Qf6 axb5 Qh6 Qb3 Qh3 Qd1 Qxh2 e4 Kd7 b4 Na6 f5 Qh3 f6 Qb3 Ra3 Qc2 Rf3 Nb8 Rf4 exf4 e5 Qc5 e6+ Kd6 Be2 Ke5 Bf1 Qe7 fxe7 Kd6 Ke2 f5 Kf3 c5 e8B a5 e7 h5 b6 c4 b7 c3 b5 a4 b6 c2 Bfb5 a3 Qe1 a2 Be2 a1B Bf7 h4 e8B h3 Ba6 h2 Bd7 Rh4 Na3 Ne7 Bde6 Bd4 Ne2 Ng6 Ng3 Bd7 Qe4 Ke7 Nh5 Nh8 Bb2 c1B Rd1 h1N Nf6 Ng3 Ne8 Rh5 Nc4 Rh1 Bb5 Na6 b8Q Nc5 b7 Ra5 Ba6 Na4 Qc8 Rb5 b8B Rh5 Bc3 Rb1 Ba5 Rg5 Bb6 Rh5 Qe3 Rg5 B6a7 Rh5 Nb6 Rg5 Kf2 f3 Qc4 f4 d6+ Kd8 Qe2 Nf5 Ba2 Rh5 Bfe6 Nh4 Qc4 Rd5 Qb4 Bc8 d7 Bd6 Qc4 Ke7 d8B+ Kf8 Bf6 Bd7 Be5 Ke7 Bc7 Bdb2 Qee4 Bc3 Bd4 Ba1 Be3 Bd4 Ke1 f2+ Ke2 f1R Kd3 f3 Bcb8 Bb4 Bh2 f2 Bab8 Bbc5 Bbg3 Bd6 Qb4 Re1 Qg4 f1B+ Ke4 Be2 Qc4 Rf1 Be1 Bg3 Qc2 Bf2 Qc6 Bd3+ Kf4 Bh7 Qc4 Rf5+ Ke4 Rf4+ Kd5 Bg3 Qc2 R1f2 Qe4 R2f3 Beg1 Rd3 Be3 Bc8 Kc6 Bd7+ Kb7 Be5 Qgf3 Rd5 Qg4 Bd4 Kc7
1b2Rn1k/2p1PBn1/N3BQ1n/b1rRR1rR/1Q1R4/n1Pb1R2/r7/2K4n b - - 0 1 legal: proof: e4 e5 d4 Ke7 dxe5 b5 f4 b4 e6 b3 e5 d6 axb3 Qe8 b4 Kd8 e7+ Kd7 b5 Ke6 Kd2 Qd7 Ke1 Kf5 e6 Kf6 g4 g5 Qd2 Kg6 Qe2 Qc6 Qf3 Qc5 Qd1 Qd5 Nc3 Qe5+ fxe5 h6 Bf4 gxf4 Ne4 h5 g5 Bb7 Nf2 Bc8 Ng4 hxg4 Kd2 Kg7 e8R f5 h4 a5 b4 f3 g6 f2 c3 g3 e7 g2 b6 a4 b7 d5 e6 a3 h5 d4 b5 f4 b6 f3 Qc2 a2 Re1 a1N Rh4 d3 Rd1 Nh6 Kc1 Rg8 Ne2 g1B Nf4 Ra2 Nd5 Nd7 b8Q Kh8 Nb4 Ba6 Bh3 f1N b7 f2 Rd4 Ng3 Rd5 f1R Qf2 Bc4 Na6 Nh1 Qf6+ Rg7 Bg4 Rf5 Rf1 Bd4 Rf3 Ba7 Rd8 Re5 e8R Nc2 Rd4 Rc5 e7 Na3 Be6 d2+ Kd1 Bd3 Rd5 Ng4 h6 Bb6 h7 Nh6 Bf7 Ba5 Rd4 Nb6 R8d5 Nd7 Qg5 Rg8 Qf6+ Bg7 Re5 Nf8 Red8 Rb2 R8d5 Rc2 Qa7 Ra2 b8R Bb1 Qb7 Bd3 Qd6 Bf6 Re8 Bh4 Qb4 Bf2 Rdf4 Rc6 Be6 Ba7 Rfd4 Rc5 Bf7 Bb8 Qf6+ Rg7 Be6 Bc2+ Ke2 d1N Kd2 Bb1+ Kc1 Ne3 Qg5 Rg8 Qf5 Kg7 h8R Bd3 Qg5 Nef5 Bf7 Ng4 Rh5 Ngh6 Be6 Kh8 Qf6+ Ng7 Qh4 Nf5 g7+ Kh7 Red8 Rh8 g8B+ Kg7 Bh7 Rg8 Bg6 Kh8 Bgf7 Rg3 Qg5 Ng7 Qf6 Rg5 Re8
QQ1k1n2/n1q5/1P1N2Q1/4R1n1/1bQbQB2/P3RrbB/K1b3pn/2b4Q b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 gxh5 Rh7 b4 axb4 c4 Rh8 Nc3 d5 Bb2 b5 Bc1 b3 Na4 b4 Nb6 Ra7 Ne2 Ra5 Ng1 Rb5 cxb5 Qd7 Nc4 dxc4 Bh3 Qd4 Bf1 Qd8 d4 e5 Kd2 c5 f4 g5 h4 e4 b6 b2 Kc2 b1N Kb2 g4 d5 g3 h6 b3 d6 e3 f6 e2 h5 e1B h7 Kd7 a3 Ke8 f5 Nh6 Rh3 Qc7 d7+ Kd8 f7 Nc3 f6 Nb5 Qd4 Ng4 h6 Na7 Qe4 Nh2 Nf3 c3+ Kb1 c4 Nh4 b2 Ka2 b1N Nf5 c2 Nd6 c3 Bf4 Rg8 h8Q c1B h7 c2 Qg7 Bb2 h8Q c1B Qgg6 Bd4 Rh5 Rg7 Re5 Nd2 Bh3 g2 Rb1 Ndf3 Rb3 Ba6 Re3 Ng5 Qhh5 Rg8 Qe2 Be7 Qc4 Re8 f8Q Bg3 Qfg7 Rf8 f7 Bb5 Q7h7 Ba4 Qhh5 Bc2 Qd1 Na6 Qe1 Nc5 Qh1 Nce6 Nf5 Re8 f8Q Bb4 Qfg8 Nf8 Nd6 Nc8 Qgd5 Re6 Qb7 Rf6 Qb8 Ngh7 Bh6 Rf3 Bf4 Ng5 Be6 Ke7 Qg8 Na7 Qba8 Qb7 Bh3+ Kf6 d8Q+ Qe7 Qdb8 Qc7 Be6 Ke7 Bc8+ Kd8 Qgf7 Ng4 Qfg6 Nh2 Bh3+
1KR1R1qn/1N1p1b1q/3R1B2/r1kP1P1Q/R6B/2b1q3/1n1R4/n2n1qRQ b - - 0 1 illegal: No possible last move
r5Q1/n1R1r2Q/BP6/1Nn5/k2rpB2/bnPbq2b/1B1pN2B/BB5K b - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 b4 h5 g4 g6 g5 Na6 Ra3 Nb8 Rg3 Nh6 fxg6 Ng8 Rg4 hxg4 f5 Qa5 Kf2 Qb6 Ke1 Qd8 Kf2 e5 Kg2 d5 h4 Kd7 g7 a5 g6 a4 f6 d3 b6 Kc6 b7 Kb5 f7 g3 h5 e4 h6 d4 h7 a3 Bh6 a2 Ne2 a1N Bf4 d2 Na3+ Ka4 b5 d3 b6 Na6 b8B Qd4 Nb5 Ne7 g8B Nb3 g7 Qe3 Rh4 Nac5 Kh1 Nc6 Qe1 Bd6 f8B d1B Bd5 d2 g8Q Na6 Bg7 Nac5 Bb2 Bh3 Qf2 Na7 Qh2 Be7 Bb7 Bd6 Ba6 Bf8 Bbd6 Rd8 Bde5 Rd4 Rg4 Be7 Rg7 Bf8 Rc7 Bd6 Qg4 Ra8 h8B Bf8 Qg8 Bd6 Ng1 Be2 Bhf6 Bd3 Ne2 Be6 Qhh7 g2+ Kh2 g1R Ba1 Rg5 Kh1 Bg4 Bh2 Bf8 Bef4 Rg7 B6e5 Re7 Bf6 Rc4 Bfb2 Bh3 c3 Rb4 Ng3 Rd4 Be2 Bg7 Bd1 Be5 Bc2 Bd6 Bb1 Ne6 Nf5 Ba3 Ng3 Nec5 Ne2
B3BkbK/3B2RP/1Qb2Rq1/Nn1qp3/RP2n3/q5r1/b4pBB/3R2r1 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 d5 d4 cxd4 e3 d3 Kf2 d2 Kf3 Ba6 Ke2 Bc8 g4 h6 g6 d4 Kf2 d3 Nc3 Bg7 Ne4 Bc3 Ng5 Bd4 exd4 Qd6 Nh7 Qd8 g5 h5 Nf6+ Kf8 Ng4 hxg4 Kg3 Ke8 Kg2 Qd5+ Kf2 Qd8 Ke3 f5 Kf4 a5 Ke5 e6 b4 f4 c4 a4 h4 f3 h5 f2 b6 a3 h6 a2 c5 g3 g7 g2 h7 Ra5 g6 Qh4 b7 Ne7 g8B Kf8 g7+ Ke8 d5 Ra8 d6 Qh5+ Kf6 e5 d7+ Kd8 c6 Ra3 Ne2 g1Q Nd4 Na6 b8R Nc7 Rb6 Nf5 Bf7 Nb5 g8B Bb7 Nb3 Ng3 Kg7 Ke7 d8R Qf3 c7 Qd5 c8B Ne4+ Bg2 Bc6 Na5 Rc3 Qg4 d1B Qg6 d2 Be8 Rg3 Bcd7 Bb3 Rc8 d1B Bf4 Bg4 Rc7 Be6 Bgf7 Qb1 Rd1 Rf8 Bg8 Rf7+ Kh8 Rg7 Qh6 Kf8 Bgf7 Qc2 Bh5 Bg8 Bhf3 Rg5 Bh2 Rg3 Qe3 R7g6 Ra6 R6g5 Qb6 Bc4 Rab1 a1Q Rb7 Qab2 Ra1 Qcb1 Ra4 Qa3 Bc8 Ba2 Rg7 Nec3 Bcd7 Qg6 Ra7 Ne4 Rc7 Ba8 Rc6 R5g4 Rd6 Bc6 Rf6+ Qdf7 Rb1 Ng5 Nc4 Ba8 Qe6 Rh4 Bg1 Rh1 Bh2 Rg1 Qb6 Bb7 Bfc6 Ne4 Na5 Ba8 Rd1 Bb7 Rfd6 Qd5 Re6 Bc8 Ba8 Bb7 Rd6 Bc6 Rf6+
3b2Q1/b3pRNR/1kn1N3/1r2B1P1/qNN1N1r1/1RpR4/1qP3bK/rn6 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 g5 e4 d5 f4 dxe4 a4 b5 axb5 Rh6 Bh3 Rb6 fxg5 Rh6 g6 Rh7 g5 Rh8 Bg4 hxg4 Kf2 Kd7 Kg3 c5 d4 Kc7 h4 f5 h5 f4+ Kh2 f3 g7 c4 d5 f2 b6+ Kb7 h6 f1Q h7 c3 d6 e3 d7 e2 a6+ Kc6 a7 e1B b7 Nf6 g8N Bh6 Nf3 Bg7 Nd4+ Kc5 Nc6 Qa6 Rf1 Bf2 Bf4 Kb6 Nb4 Ne4 Be5 Nc6 b8R+ Bb7 Nf6 Qa4 Qd5 Nd2 Na3 Nb1 Qg8 Be3 Ne4 g3+ Kh1 g2+ Kh2 g1R Rf7 Qe8 d8N Rg4 Ne6 Qb3 Rd8 Qb2 Rd3 Bf6 Ng7 Rb8 Bd6 Bfd4 Be5 Bc5 Ra2 Bd6 Ra1 Bc7 Ra2 Bd8 a8N+ Ka5 Nc7 Ba7 Nce6 Kb6 Qf8 Rg8 h8R Qd7 Rh7 Qd4 Na6 Qa4 Nb4 Ra8 Nh5 Rg6 Qg8 Rf6 Nhg7 Rf5 Bd6 Rb5 Be5 Qa1 Rb2 Qa2 Rb3 Qb2 Rd1 Na5 Nf2 Bg2 Rd3 Nc6 Nc4+ Kb7 Rhh3 Bab6 Na6 Qb4 Nb8 Ra1 Na6 Qa4 Ne4 Bd4 Nb4 Ba7 Ne3 Kb6 Rh5 Nd2 Rh7 Nb1 Nc4+
1n2b2Q/2p5/Nkrb1qQQ/3qQ3/nRqQ1P1Q/K2p1B2/2N4P/2rB3b b - - 0 1 illegal: No possible last move
Q2Qrrk1/P1n1QqQ1/q4b2/1Bp2K2/QPq2Qp1/1R6/b2R1N2/1nb1B3 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 d5 c4 Ra7 cxd5 Ra8 b4 b5 Qb3 a4 Nc3 axb3 a4 Bd7 a5 Bc8 Na4 bxa4 Ke2 Kf7 Kf3 c5 Ke4 e5 d4 g5 f4 b2 h4 a3 f6 g4 a6 a2 h6 Bb7 f5 Ne7 h7 Qc8 a7 Nd7 h5 Qb8 h6 Nc8 Bb5 Be7 Nh3 Qd6 Rd1 Bf8 Rd2 Bg7 Nf2 Rb8 Rb1 Re8 h8Q Qf8 h7 Ba6 d6 a1Q d5 Ndb6 d7 Na8 d8Q Ne7 d6 Nd5 d7 Nac7 Qc8 Qg8 d8Q Nc3+ Ke3 e4 Kf4 e3 Qcd7+ Kf8 f7 e2 Qc6 Bb7 Qa6 e1B Qa4 Bd4 Qhf6 Rc8 h8Q Bd5 Qhh6+ Qg7 Qc6 Bf6 Qa8 Rb8 Rd4 Qa3 Bd2 Ba2 Rd3 Rc8 Rd1 Nb1 Rb3 Be7 Bc3 Bd2+ Ke4 Bc1 Be1 Rb8 Rd2 Rc8 Qf4 Qh7 Ke5 Kg7 Ke4 Bf6+ Qe7 Kh8 f8Q+ Qg8 Q8h6+ Qh7 Qh1 Kg8 Qhh6 Rf8 Qd8 Qf7 Qe7 Rce8 Qd8 Bh4 f6 Bg5 Rf3 Qab3 Kf5 Qbc4 Qa8 Na3 Rb3 b1Q+ Ke5 Qbd3 Qd8 Qd6+ Kf5 Qa6 Qa8 Rc8 Qd8 Nb1 Qe7 Qg7 Qd8 Re8 f7+ Kf8 Qfe4 Bf6 Qef4 Rb8 Qd7 Rec8 Qh3 Qg8 Qe7+ Kg7 Qd3 Kh7 f8Q+ Qgf7 Q8h6+ Kg8 Qdd7 Rf8 Qdd5 Rbe8 Qad8 Qd4 Q5a8 Qdc4 Qg7+
1bR3K1/2RR3n/br3B2/r4N2/5PBp/q3bQb1/n1p2BBP/q2Bk2R b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 d4 Bd6 dxe5 Bf8 e4 f5 f4 fxe4 Nd2 g5 Ndf3 g4 Ra5 gxf3 Ra6 Qg5 Ra1 Qd8 Kf2 Kf7 Ke3 Kg6 Kd4 Kh5 b4 Kh4 g4 h5 b6 a5 e6 c5+ Ke5 c4 b7 c3 g5 f2 g6 c2 g7 a4 b5 a3 e7 a2 e8B e3 d6 e2 d7 e1B Ke6 Qa5 Kf7 Ne7 d8R Qa3 g8B Nd7 b8B Nd5 b6 Rh6 b7 Nc3 Bg2 f1Q Be3 Bg3 Nf3+ Kg4 Be5 h4 b8R Ra5 Bg1 Ba6 Rbc8 Rb6 Bf6 Bc5 Qd5 Nf8 Rd7 Nh7 Nd4 Qd1 Nf5 Be3 Rdc7 Qe1 Rd1 a1B Qe4 Na2 Rdd7 Qec1 Kg7 Qe1 Be6 Be5 Kg8 Qa1 Bf3+ Kh3 Bd1 Bd6 Beh5 Be5 Bhf3 Bd6 Qd3 Be5 Bg4+ Kg2 Qd5+ Kf1 Qf3+ Ke1 Bc4 Bd6 Bf1 Be5 Bg2 Bd6 Rc5 Bb8 R5c6 Rd5 R6c7 Ra5 Bf2#
1q1n1B2/3R1r1r/5Rb1/kp1BnR2/3Q1N1Q/2q2P1R/pRPn4/2R1Kn1n b - - 0 1 legal: proof: b4 b5 a4 f5 d4 h5 e4 h4 exf5 h3 gxh3 e6 h4 c6 h5 Bc5 dxc5 Ke7 Na3 bxa4 b5 Kf7 b6 Ke8 Nb5 cxb5 h4 g5 c6 d5 f6 a5 c7 Kd7 f7 Kc6 f8Q d4 h6 d3 h5 d2+ Ke2 a3 h7 g4 f3 a4 h6 g3 b7 Kb6 Rh2 g2 Rb1 e5 Rh5 e4 Rf5 e3 Qc5+ Ka5 Re5 Nd7 b8R Ne7 Rh5 Ra7 Qe5 Nc6 Qg3 Nde5 Qg5 Bf5 c8R Bg6 Rb6 Rf7 Rc7 Qb8 Nh3 Nd8 Rd7 g1Q Bb2 Qg4 Bc1 Qb4 Rf6 Qb3 Qg4 Qc3 Qe1 d1N Rhf5 Nf2 Qd4 a2 Rb4 a1N Nf4 Qbc8 Ba3 Qb8 Rb2 Nb3 Bd6 a3 Bf8 Nh3 Kd1 a2 Bc4 Nd2 Bd5 Nf2+ Ke2 Rg8 h8R Rgg7 h7 Nh1 Rg5 Nf2 Rg1 Nh1 Qg3 Nf2 Rc1 Nh1 Ke1 e2 Qg5 Ng3 Kf2 e1N Qh6 Ngf1 Rg8 Bf5 h8R N1d3+ Ke2 Nf2 Ke1 Nh1 Qg5 Rg6 Rh3 Rgg7 Qh4 Rh7 Rg5 Bg6 Rgf5
4n1K1/1rpp2Rn/kPBB2B1/1BB1Nq2/2B1Q3/2P1bQnq/5b2/2n1nN2 b - - 0 1 illegal: No possible last move, all moves rejected
2n2N2/k1BR1N2/r1q1p3/Q1rP4/NqN3N1/2rpP2r/N6n/1Q1Kb1Rq b - - 0 1 legal: proof: g4 g5 f4 b5 fxg5 b4 h3 b3 g6 Nf6 g5 Ng8 axb3 Na6 b4 Bb7 b5 Nb8 d4 d5 c3 Bc8 Bg2 Be6 Be4 Bg4 c4 dxc4 Bd3 cxd3 hxg4 Qd7 Be3 Qc8 Bc1 Qd8 b4 Kd7 d5 Kc8 g7 Kb7 e3 a5 b6 c5 b5 h5 g6 f5 g5 h4 Bb2 e6 Nd2 a4 Be5 c4 Ne2 h3 Nc3 f4 Rg1 a3 Na4 h2 Bc7 h1Q Qb1 a2 Kd1 c3 Nc4 Nh6 g8N f3 g7 f2 g6 Ng4 Nf6 Qd6 g8N Nc6 g7 Ra5 Nh6 Qb4 g8Q Ne7 Nf7 Nh2 Ng4 Nc8 Qh7 Ka8 b7+ Ka7 b8N Ra6 Qe4 Rh3 Nd7 Bc5 Nf8 c2+ Kc1 Bd4 Qh7 Bc3 b6+ Ka8 b7+ Ka7 b8N Be1 Qh4 f1Q Qd8 Ra5 Na6 Rc5 Nge5 Qf4 Ng4 Qb7 Nb4 Qc6 Qb3 Qfd6 Rb1 a1R Na2 Bf2 Kd2 c1R Qb5 Rc2+ Kd1 Rc3 Rc1 Be1 Qb1 Qb5 Rc2 Qdc6 Rb2 Qa5 Rb5 Qb4 Rb6 Qd7 Rd6 Qc6 Rd7 Nb6 Nc1 Raa3 Na2 Nc8 Nab2 Raa5 Na4 Ra6 Bd6+ Qcb7 Qa5 Qc7 Bg3 Qcb7 Bc7 Q7b6 Qa1 Qc6 Qb1
5R2/2nq2bN/2PP3k/2N5/1Nbr3R/b3p1qq/1Q1npB2/KNRbR2R b - - 0 1 legal: proof: e4 c5 g4 b5 d4 cxd4 a4 h5 axb5 d3 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 Be2 f5 Ra2 a5 Ra3 d5 Ra1 d4 Bf3 Ra7 Bg2 Rd7 Bf3 Rd5 exd5 Be6 Bg2 Bc8 Be4 fxe4 Kd2 Kf7 f4 g5 h4 Kg7 b4 e5 c4 a4 h6+ Kh7 h5 g4 f5 a3 b6 g3 f6 a2 d6 g2 f7 Ne7 c5 Bg4 b7 Be6 b5 Nf5 c6 Qd7 b6 Na6 b8N Bd5 b7 Ne3 Qe2 Nc7 Na6 Bg7 b8N Bc4 Nf3 g1Q f8R Qg3 Nb4 Nf1+ Kd1 e3 Qb2 d2 Kc2 e2 N8a6 e4 Nc5 Rg8 Re8 Rf8 Re6 Rf4 Ng5+ Kg8 Re5 d3+ Kc3 d1B h7+ Kf8 Be3 Nd2 h6 Rg4 Bf2 e3 Rh4 Rd4 h8R+ Bg8 Rh7 Bc4 Ree4 Kg8 Rh1 Kf8 Re1 Qgh3 Rh4 Kg8 Nge6 Kf7 Rh8 Kg6 h7 Qg3 Rf8 Qh3 Rg4+ Kh6 Ng5 Qg3 Na3 Qh3 Rc1 a1B h8R+ Kg6 Nh7+ Kh6 Nba6 Qg3 Nb1 Qh3 Kb4 Qg3 Ka3 Qh3 Qb3 Bb2+ Ka2 Ba3 Rh4+ Kg6 Re4 Qg3 Rf1 Bc2 Ng5 Nf3 Ka1 d2 Rh5 d1Q Nh7 Nd2 Rhh1 Qe1 Rfg1 Qf1 Nb4 Bd1 Qb2 Qfh3 Re1 Kh6 Rh4+
1Qb1B3/1bP1K3/1r4Np/1qB2qP1/q1B1b1R1/b4B1n/k1p2rR1/2B3BQ b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 b5 c4 bxc4 h4 g5 hxg5 Bh6 Rh3 Bg7 Rh1 Bf8 d4 c5 b5 c3 Na3 c4 Nc2 Na6 Nb4 Nc5 dxc5 axb4 Ke2 Kf7 Kf3 d5 Kg4 e5 f4 c2 a4 d4 b6 h6 g6+ Ke7 c6 Kd6 c7 Kd5 g7 d3 a5 c3 a6 Kc4 a7 Kb3 b7 e4 b8Q e3 Rh4 e2 Nh3 e1Q Ra2 d2 Bb5 Qee8 Qh1 Ne7 g8B+ Qd5 g3 Bb7 f6 Ng6 f5 Nf4 f7 Qed7 Bc6 Qb5 Bf3 Bd6 f8B+ Qf7 f6 d1B Be7 Qfc4 Bd5 Rf8 Kf5 Bc5 Bh5 Bg4+ Ke5 Bf5 f7 Bfc8 Kf6 Qa4 Bdf3 Qcb5 g4 Bd6 g5 Bc5 Bd2 c1Q Rg4 Qc2 Bc1 Qe4 Rag2 Qf5+ Kg7 Bd6 Be2 Ka2 Bc4+ Kb1 Bf6 b3 Bd4 b2 Bg1 Ba3 Bg6 Ka1 Bh5 b1B Bg6 Rd8 f8B B1e4 Bfc5 c2 Be8 Rd6 Kg8 Rb6 Kg7 Qg6+ Kf8 Qf5+ Ke7 Kb1 Nf2 Ka1 Nd3 Nh3 Ne5 Kb1 Bd3 Ka2 Ng6 Bbc6 Qb7 Rb8 a8B Bcd5 Bf1 Rf6 Qa7 Rbb6 Qb8 Bdb7 Be2 Qd5 Bf1 Rf2 Be2 Qf5 Bf3 Ba6 Bac6 Bab7 Bd5+ Kb1 Bc4 Ka1 Bd3 Ka2 Bc4+
1Nb2k2/2p4n/rR2n2R/2Rp1P2/1KB1r2B/nQR4B/P3rn2/2R2qqB b - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 e5 dxe5 a4 b3 axb3 c3 b2 e4 f5 e6 b5 e5 b4 Nd2 b3 Ne4 Bb4 cxb4 fxe4 Kd2 b1R Kc3 g5 h4 d6 f4 b2 h6 e3 h5 e2 b5 e1N e7 g4 f5 g3 b6 g2 h7 Ba6 h6 Nd3 b7 Qd7 Qb3 Qb5 Nf3 g1N Nd4 Nb4 Bh3 Ra7 Bg5 Ra8 Bh4 Qf1 Nc6 Re1 Rc1 Nd7 b8R+ Bc8 Rb6 b1Q Nb8 Qb5 Rh2 Ngf6 Rhc2 Rg8 h8R Nf8 h7 Rg4 Rg8 Ra5 h8R Rge4 Rh6 Ra6 Rg3 Ne6 Re3 Kf7 e8B+ Kf8 Bc6 Nh7 Rg3 R4e2 Bh1 d5 Rd3 Re4 Rg3 Qf1 Re3 Nd4 e6 Re2 e7+ Ke8 Nd7 Ne6 Nb8 Kf7 e8B+ Kf8 Bb5 Qa1+ Rb2 Nc2 Bc4 Na3 Kb4 Qb1 Rec3 Qa1 Bg4 Nh3 Rbc2 Nf2 Bh3 Qb2 Re3 Qg7 Rcc3 Qgg2 Rg3 Qgg1 Rgg6 Ng7 Rgc6 Ne6 Rc5
2nb3B/1RRQ2rq/pRr2n1B/4n3/rP1P2Bn/1B3pB1/N6K/kR3r2 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 f3 Nc3 f4 Ne4 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Ke7 b4 Kd6 e4 Ke5 h4 Kd4 d6 c5 f6 g5 d7 c4 e5 c3 e6 c2 e7 a6 e8B Rh7 f7 Nf6 b6 Qe7 d8R+ Nbd7 b7 Rg7 h5 Rc8 b8B Rc6 Rc8 Nb6 Rc7 Nc8 Be2 g3+ Kf1 f2 Kg2 f1R h6 g4 h7 Qd7 h8B Be7 f8R Bd8 Rh7 Qe7 d3 Kc3 Ra2 Kb3 Kh1 g2+ Kh2 Kc3 Be3 c1R Bf7 Ra1 Rb2 Ra4 Bb3 Qe4 Rh6 Qh7 Rff7 g3+ Kh3 Nd5 Bg4 Nf6 Rb7 Rb6 Rfc7+ Rc6 Nf3 g1N+ Kg2 Nd6 Ne5 Nc8 d4 Nf3 Nd3 Ne5 Nc1 f3+ Kh3 g2 Kh2 g1N Qe2 Nh3 Qb5 Nf4 Qd5 Ned3 Qd7 Ng2 Bf4 Nh4 Rg6 Ne4 Bh6 Ne5 Rd6 Nf6 Re6 Rc5 Reb6 Rc6 Rg2 Qc2 Na2+ Kb2 Rd2 Ka1 Rf2 Qh7 Rb2 Ne7 Rc8 N5g6 Bg3 Ne5 Rcc7 Nc8 Rb1+
2R1Q2n/b2PrppR/B6R/Kn5k/R1B1pPr1/1N1Q3b/1rR2q1R/b7 b - - 0 1 illegal: No possible last move, all moves rejected
1K1BR1NR/1P2b3/2Rnpn1Q/B4Bn1/Pb1r4/p6r/1B1kR1p1/4qr1R b - - 0 1 illegal: No proof kernel
1rk1KQ1r/1pN1NN2/Q1N2b1P/8/npB1PpNq/2bRb3/6n1/1Nr4R b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 d5 c4 f5 cxd5 h6 b4 f4 Ba3 Bf5 gxf5 Ra7 Bb2 Ra8 Bd4 axb4 Bf2 Ke7 Bh4+ Ke8 Bg5 hxg5 Kf2 Kd7 Kf3 c5 Ke4 c4 h4 c3 a4 g4 d4 g5 a5 g3 h5 c2 d6 c1B Kd5 g2 e4 g4 f6 g3 e6+ Kc8 d7+ Kc7 e7 Qe8 Ke6 Be3 d8N Rh7 h6 Bf2 a6 Kc8 a7 Qg6 e8Q Rg7 d5 Ne7 d6 Bc5 Nh3 g1B Nf2 g2 Qe2 Qg3 f7 Nf5 Ra3 Rh7 Ng4 Nh4 Rd3 Be7 f8N Bcd4 Ng6 Nd7 Qf8 Rb8 a8N Bge3 Nc7 Rh8 Kf7 g1R Ke8 Nc5 Nf7 Bef6 Qa2 Bc3 Qa6 Ng2 Be2 Rc1 Bf1 Ra8 d7+ Kb8 d8N Kc8 Nc6 Qh4 Rd5 Rb8 Bc4 Na4 Rd6 Be1 Rd3 Bec3 Nge7+
2nQKQQB/1N6/qPP1p3/1nb1Qq2/p2R3b/pBQn3N/4r2Q/2k1r3 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 b5 dxc5 Kf7 a4 bxa4 f6 Ke6 g4 Ke5 f7 Ke6 Nd2 Kd5 Nb1+ Kc6 b4 h5 f4 Rh6 f5 Ba6 f6 Rh8 Ra3 Bb5 Rg3 Bd3 Rg2 Bf5 gxf5 Qc7 Rg6 Qd8 Rg4 hxg4 Kd2 Kd5 Kc3+ Ke4 Kc4 a5 Kb5 g5 h4 d5 c4 a3 c6 a4 c7 g3 c8Q g2 c5 d4 h5 g4 h6 e6 h7 g3 Nd2+ Ke3 Bc4 d3 Bb2 Qd5 Qa1 Na6 Nh3 g1Q Ne4 d2 Nd6 d1N Bb3 Kd2 Nb7 Qc4+ Kc6 g2 Kd7 Be7 f8Q Qf2 f7 g1B b5 Nb4 f6 Qf5 b6 Nd3 Qfd8 Qa6 f8Q Nc3 f7 Bh4 Ke8 Ne7 Qg8 Nb5 f8Q Bd4 c6 Bc5 Qcc7 Nc8 Qe5 Rb8 Rc1 Ra8 Rc4 Ra7 Na5 Rg7 Rd4 Rg2 Nb7 Re2 Qag1 Re1 Qgh2+ Re2 Qg4 Rg8 h8Q Rg5 Qf3 Rg1 Qhg8 Re1 Ba1 Kc1 Qfg3 Nb4 Qc3+ Nc2 Rg4 Kb1 Qcd4 Qe4 Qb8 Qf5 Qd2 Nb4 Bh8 Nd3 Rd4 Bf6 Qbe5 Bh4 Qb4 Kc1 Qc3+
n5bb/1Q1p4/2N5/1q2RpK1/2Qq1QB1/PnQ2r1R/pk2P1QN/3Qq1r1 b - - 0 1 legal: proof: f4 b5 d4 e5 fxe5 h5 g4 c5 dxc5 b4 gxh5 Be7 Bf4 Bd6 Bc1 Bf8 Qd5 a5 a3 Rh7 Bd2 Rh8 Qa2 b3 Bc3 bxa2 b4 Nh6 b5 Ng8 Bb4 axb4 Kd2 Ke7 Ke3 Ke6 Kf4 Kd5 h4 Kd4 c4 f5 h6 g6 c6 b3 c7 b2 e6 Bb4 e7 Ra4 e8Q Be7 h5 Ra8 c5 Rh7 b6 Rh8 h7 Nf6 c6 Bc5 h6 Bd6+ Kg5 Rg8 h8Q Ba6 c8Q Be5 h7 Bc4 b7 Qa5 c7 Qb5 Nd2 Kc3 Rd1 b1Q Ngf3 Ra4 Nb3 Nd5 Na5 Na6 b8Q Nb6 Bh3 Nc5 Qcb7 Kb2 c8Q Nb3 Bg4 Na8 Rd5 Qe1 Nc6 Rg7 Rc5 Bg8 Rh3 Rf4 Nh2 Rf3 Qb8c7 Bc3 Qe4 Bd4 Re5 Bc3 Kf6 g5 Qd6 Bd4 Qf4 Bc3 Qd1 Bd4 Bh5 g4 Qcc7 g3 Bg4 Rg5 Qg7 g2 h8Q g1Q Qh4 Bc3 Qhg3 Qd4 Qg2 Rf1 Qf7 Rg1 Qc4 Rh5 Rd3 Rh3 Kg5 Rf3 Rde3 Bb4 Rc3 Bf8 Qa5 Bg7 Rce3 Bh8 Rd3 Rf2 Rh3 Rf3 Qac3+
1bBB1NB1/npb2r2/1B3RB1/2Q4K/3bp2P/1q2kBQ1/5qpP/2r1Nn2 b - - 0 1 illegal: No proof kernel
q5R1/NNrrNp2/1q3BBN/1B1r4/Qn1pP2n/2q1pkP1/3N4/2bK2B1 b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 c5 e5 d6 exd6 Bg7 Nc3 Bh6 Nb1 Bf8 b4 e5 d4 e4 d5 e3 f3 Be6 Ra3 Bf5 Rd3 Bg6 Rd4 Be4 fxe4 cxd4 c4 Kd7 g3 h5 c5 a5 c6+ Kc8 b6 a4 c7 Kb7 b5 h3 d7 h4 d6 h2 Bd2 h3 Nf3 a3 Nh4 a2 Qa4 a1Q Kd1 Na6 Be1 Qc3 Bf2 Nh6 Nd2 Nb4 Bg1 Ra5 Nf5 Qa8 d8B Kc8 b7+ Kd7 b8N+ Ke6 b6 Rd5 c8B+ Ke5 Ng7 Nf5 d7 Nh4 b7 Be7 Nc6+ Kf6 b8N Kg5 Nf5 Kg4 Bd3 Rh6 Na7 Rhd6 Bb5 Bf8 Nc4 Kf3 Bf6 Be7 d8N Rd7 Nb7 Bc5 Nh6 Bd6 Bf2 Be7 Rg1 h1R Nbc6 h2 Re1 Bd6 Ne7 Rg1 Rf1 h1Q Re1 Rg2 Bg1 Rc2 Re2 Qh3 Rh2 Qe6 Rh3 Bc5 Rh1 Qb6 Rh2 Rc7 Bf5 Rcd7 Bg6 Nc6 Nef5 Ba3 Ne7 Bc1 Rh3 Ng2 Rh5 Nb4 Rg5 Nh4 Bf5 Rg2 Rg8 Rc2 Bg6 Qa3 Nb2 Rcc7 Nc4 Qc3 Nd2+
k1K1QQQQ/R2p1pN1/2nQ3r/3b2P1/QBq1q1r1/1B2rp2/3P4/3q1Rb1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 a4 exf4 Nc3 Ne7 Nd5 Bb7 axb5 Ng8 b6 Ba6 b5 Bc8 Nb4 cxb4 Kf2 a5 Kf3 h5 Ke4 a4 Ke5 f3 c4 a3 e4 h4 g4 a2 c5 h3 c6 b3 c7 b2 b7 b1R g6 h2 g7 Nf6 g8Q Na6 b8Q Rb3 b6 Nc5 g5 Nh7 b7 Nf6 Ne2 Na6 Nd4 Nb4 Rb1 a1Q Ba3 Qc3 Bc4 Ra4 Rf1 h1Q Bb2 Qe3 Ne6 Rh6 Bc3 Nfd5 Ng7+ Ke7 Qa8 Qe1 b8Q Bb7 c8Q Nc7 Bd5 Nb5 Qc6 Qc8 Qcd6+ Kd8 Be6 Rba3 Bb3 Nc6+ Kd5 Qe3 e5 Rc4 e6 Rg4 Rb2 Qhg1 Qa4 Qh1 Qa1 Qe4+ Kc5 Ba8 Kb6 Bb7 Ba5 Ba8 Bc2 Re3 Bb3 Bb7 Qda3 Ba8 Qbd6 Qc7+ Ka6 Kc8 e7 Kb8 e8Q+ Nd8 Nf5 Bd5 Ng7 Ka8 Rbb1 Be7 Qe5 Qcc4 Qh2 Re6 Qhh8 Rh6 Q3b4 Bf6 Qdf8 Be5+ Qbd6 Bh2 Rb2 Bg1 Rbb1 Qh4 Rb2 Qe2 Rbb1 Qd1 Kb6 Na3 Kc7 Nb5+ Kc8 Nc6 Bc4 Na3 Rb7 Nb5 Bb3 Qc4 Qee5 Qhe1 Qee8 Qee2 Qee5 Qed3 Qee8 Qde4 Bb4+ Nba7+ Rxa7+
b3r3/2nB1pK1/2rN4/1r3k1N/Rn1nNNp1/2PB1q1P/5pBB/Q5Nr b - - 0 1 illegal: No possible last move
5Q2/K1P2q1P/nB1bR1rn/r1Q1p3/ppQ5/b1pB1NQ1/k3n3/N3QQ2 b - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 f5 exf5 d5 gxh5 Bd7 a4 cxb4 c5 b3 Ra2 b4 Rc2 Bb5 Rc4 dxc4 axb5 Rh6 Ne2 Rh7 Ng1 Rh8 Ke2 Kd7 Ke3 a5 Kd4 g5 h4 e6 f4 g4 f6 c3 b6 a4 c6+ Kd6 f7 g3 h6 b2 f5 g2 b7 Qe8 h7 Ne7 h5 Qd7 f6 Ra5 h6 Rc5 Na3 b1N Nc2 Re5 Nf3 Qc7 Bd3 Qc8 Na1 Nd5 Qf1 Rg8 h8Q Qe8 h7 Qe7 Rh6 Rgg5 Qg8 Na6 b8Q+ Qc7 Kc4 g1B Kb5 Be3 Qe8 Be7 f8Q Rg6 f7 Qd7 Ka5 Kc5 c7 Nf6 Qfg7 Rd5 f8Q Ng4 Qe5 Bg5 Qg3 Bd6 Qee7 e5 Qfe1 Rg7 Re6 Nh6 Qf5 Rg6 Qfh3 Be3 Qhf1 Na3 Qgf8 Rd4 Qff4 Kd5 Kb6 Nc2 Ka7 Kc5 Qef8 Qf7 Qe7 Rd5 Qd4+ Kc6 Qeh4 Ra5 Qc5+ Kd7 Qc4 Nd4 Bc2 Ne2 d4 Bf4 Be3 Bg5 Bf2 Bc1 d5 Ba3 Bd3 Be7 d6 Bf8 Qe3 Be7 Qcf4 Kc6 d7+ Kd5 d8Q+ Bd6 Qf8 Bb2 Q3d2 Bc1 Bb6 Ba3 Be4+ Kc4 Qde3 Rb5 Qeg1 Ra5 Bd3+ Kd5 Nd4 Bc5 Be4+ Kc4 Nf3 Be7 Nc2 Kb3 Bd3 Bc5 Na1+ Ka2 Qe4 Be7 Qc5 Bd6 Qec4+
3q1QR1/1KN2p2/3qBb1P/pPpnp2R/2Rr4/7B/k1bqBn2/4BRR1 b - - 0 1 legal: proof: c4 b5 e4 a5 f4 g5 fxg5 d5 a4 dxc4 axb5 Bh3 d4 Bf5 d5 Ra7 d6 Bc8 g4 h6 g6 Ra6 Nd2 Rc6 Ndf3 Rc5 Ng5 Rd5 exd5 Na6 N5f3 Nb8 g5 h5 Ne5 Nh6 Ng4 hxg4 Qd3 Ng8 Qd4 Bb7 Qd1 Bc8 b6 Kd7 Kf2 e5 Ke3 c5 Ke4 c3 h4 c2 b4 g3 g7 g2 b5 Na6 g6 Nc7 b7 Ne8 b8R Be7 h5 Rh7 h6 Bb7 Rh5 Ba8 Bd2 c1Q Nf3 g1Q Ng5 Bc6 Be2 Qc8 Ne6 Bb7 Nc7 Kd8 d7 Bf8 Ra4 Ke7 d8R Ba6 d6+ Kf6 Kd5 Qd4+ Kc6 Rh8 d7 Nd6 Re8 Ne4 d8R Qd5+ Kb6 Ne7 g8B Qd3 g7 Bb7 Bh7 Nf2 g8B Be4 Bf5 Bg7 Bh3 Qd4 Ra8 Bc2 Bh7 Qd3 Rdd4 Qd7 Reb8 Rd8 Ra1 Qe8 Rda4 Qg6 Qg1 Rd4 Kb7 Qd7 Bb4 Qgg5 Bhd3 Qd6 Bc4 Qcf4 Rf1 Bh8 Be1 Qd2 Bg2 Kf5 Bh3+ Ke4 Bce6 Nd5 Rf8 Ke3 Rae8 Qgd8 Rc4 Bf6 Qg7 Ke4 Rh8 Ke3 Rh7 Ke4 Rg8 Ke3 Qf8 Ke4 B2g4 Kd3 Rb4 Kc3 Rc4+ Kb2 Rhg7 Ka1 Be2 Ka2 Rgg1
B1kNK3/1Np2Q2/2nrP1Q1/nR4B1/2qpb2N/q3Np2/1nN1P1p1/N6r b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 d5 a4 dxc4 axb5 e5 d4 Ke7 b4 Bh3 f4 Ke8 d5 Bd6 Ra3 Be6 Rd3 Bc8 Rd4 exd4 Qd2 Nh6 Qd1 Be5 fxe5 Ng8 Kf2 Kd7 Kg3 a5 Kf4 g5+ Kf5 g4 h4 c3 e6+ Ke7 d6+ Ke8 h6 g3 h7 f6 Kg6 c2 b6 a4 b7 f5 b5 f4 d7+ Ke7 b6 a3 h5 a2 h6 a1N Nh3 Ra3 Bg2 Nc6 b8N Nb4 b7 Rf3 Qg1 Ra3 Nf2 Nd3 Nd2 Ra2 Nd1 Ra6 Nc6+ Kd6 Kf7 Nb3 b8Q Qh4 Nb4 Qg5 Ba8 f3 Rh5 Na5 Nb3 Qg4 Rb5 Qh3 Na1 Bb7 Qf8+ Ne7 Ke8 Qf5 Bf4+ Qe5 Ne3 c1Q Qg8 Qa3 Nbc2 Nb2 Qf8 Rg8 h8N Be4 Ng6 Rh8 h7 Rc6 Bh6 Qec5 d8N Qc4 Qg2 Rg8 h8N Rg7 Qh3 g2 Qh5 Rh7 Bg5 Ra6 Qhh6 Rb6 Qhg7 Rh1 Nh4 Rc6 Qg6 Ra6 Nb7+ Kc6 Nf7 Rb6 Rf5 Ra6 Nc5+ Kb6 Qfg8 Ka7 Nb7 Kb8 Q8h7 Kc8 Nfd8 Rd6 Rb5 Nec6 Qhf7
1QB1K3/pr1n1PbB/1q1p4/RB1N3b/8/2rB1p1r/P2BRp2/2kr2RR b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Qc7 g5 Qb6 Nd2 Qd8 Nc4 Bf8 f3 Nc6 Ne3 Nb4 Ng4 hxg4 Qd3 Nd5 Qd2 f5 Qd1 Ndf6 gxf6 gxf3 Kd2 Kf7 Kd3 Kg6 Kd4 b5 Kd5 f2 h4 b4 c4 d6 Kc6 f4 e4 f3 f7 b3 h5+ Kh7 e6 g5 e5 Kh6 e7 b2 e8R b1R e6 Qf6 e7 Qg7 Nh3 Rb7 Bd2 Rd7 Be1 g4 Nf4 Kg5 h6 g3 h7 g2 Qb1 g1R Bd3 Ba6 Nd5 Qf6 Qb8 Rd8 Rd1 Rc8+ Kd7 Qe5 c6 Qe3 c7 Qb6 c5 Bg7 c6 Bc4 Rc1 Bb3 Rc5 Bc2 Ra5 Bb1 Bf1 Bg6 Bd3 Rg2 Rg1 Bh5 Rf8 Rg4 e8B Nf6+ Ke7 Rg2 Bd7 Rg4 Re8 Rg2 B7f5 Nd7 Bb5 Rg3 Bfd3 Rg8 h8R Kg4 Qb7 Rab8 Qa8 Rb7 Qb8 Bg6 Rhh1 Bh5 Be2 Kf5 Bed3+ Ke5 Bh7 Kd4 Bhd3 Rh3 Bh7 Rd8 c8B Rh8 Bhd3 Rh7 c7 Rh6 Nf6 Ke3 Bh7 Rg6 Bd3 Rg4 Bb5 Rc4 Nd5+ Ke2 Bd3+ Kd1 Bh7 Rd4 Bbd3 Ne5 Bd7 Kc1 B7b5 Nd7 c8B Rc7 Bb7 Rc3 B7a6 Rdc8 Bb7 R8c4 Bc8 Rc7 Kd8 Rb7+ Ke7 Qc6 Kd8 Qc5 Re2 Qc6 Ke8 Qb6 Bc2 Rd2 Bcd3 Rd1 Bd2+
5Q1B/rQk1KQn1/1Nb1Qn1P/n3bQ2/2N1q1pb/3R2P1/2Rb4/1Q2rb1q b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 g3 b5 axb5 h4 Bg2 h3 Qc2 hxg2 Qa4 Bh3 Qd1 Bc8 Kf2 Kd7 Kf3 a5 Kg4 g5 Kf5 c5 b4 g4 h4 a4 d4 f6 e4 f3 b6 c4 d6 c3 d5 c2 b7 f2 b5 f1B b6 a3 e5 a2 h5 Ra5 h6 Ra3 e6+ Ke8 d7+ Ke7 Qd3 Kd6 e7 Ra4 e8Q Ra3 Nc3 Ra7 Qf7 Nc6 Rh2 Be7 Nf3 g1Q Nd2 Na5 Na4 Qh1 Bb2 Qe8 Rd1 c1B Re2 a1B b8Q+ Rc7 Qb1 Bb7 Qc8 Bc6 d8Q+ Rd7 Kg6 f5 b7 f4 Qb6 f3 b8Q+ Rc7 Kf5 f2 Qb8b7 Nf6 Kg5 Bd8 Qcf5 Qee4 Qe3 Re8 Nb6 Rc8 Kg6 Ra8 Kg7 Re5 Kf8 Ra7 Bd4 Ng8 Qeb3 Bh4 Q3a2 Re7 Bh8 Nf6 Qab3 Be5 Ndc4+ Kc5 Rb2 Bd2 d6 Re6 d7 Re7 Na3 Kd6 Rc2 Re6 Qa6 Kc7 Nac4 Bh3 Qab5 f1N Qd5 Re7 Qde6 Ne3 Qb4 Bf1 d8Q+ Kb7 Qdd5 Kc7 Qa3 Be1 Rd3 Bd2 Q5g6 Nf5 Qac5 Nd6 Qgf5 Nde8 Qcb4 Ng7 Qa3 Bd7 Qb7+ Kd8 Qa8+ Bb8 Rdc3 Qe1 Qee4 Bc6 Qb7 Qe3 Rd3+ Qd4 Qef4 Re1 Q5e6 Be5 Qff5 Bd7 Qa6 Kc7 Qae7 Qdd5 Qee8 Qd4 Ke7 Bc6 Qef8 Qde4 Qb7+
B1Q3qq/2nrn1p1/b1bQ2P1/P7/QB2r1nN/1Q1rkQQR/5b2/2K2bN1 b - - 0 1 illegal: No possible last move, all moves rejected
nq3N2/Rp2NN2/2B2K2/kBP1Q2b/5b2/BPrnN1q1/2rB4/1Bqbbn2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 d4 cxd4 hxg5 a5 b3 a4 Nd2 a3 Rb1 Kf7 Rb2 axb2 a4 Ke8 Ke2 b1B Kf3 h5 Kf4 d5 Ke5 Kd7 f4 Kc6 c4 Kb6 g4 d3 f6 d4 f5 h4 g6 h3 f7 h2 g7 Bc2 f6 Nh6 g8B Na6 g5 Nc7 g6 Nf5 g7 Rh3 Qe1 Ng3 Ngf3 Bg4 Ng5 Bh5 Bh7 Qb8 g8B Bh6 f8B e6 Rg1 h1N f7 Nf2 Kf6 e5 a5+ Ka6 c5 e4 Nc4 d2 Bg2 Kb5 a6 d1Q a7 e3 Bc6+ Ka6 Qc3 d3 Qe5 e2 Bb2 Qd2 Ra1+ Qa5 Bf5 e1B Bgh7 d2 Bd3 Nf1 Be2 Bd1 Bb1 Bc2 Ra4 d1Q Ra1 Qe8 Bc1 Rd8 a8N Rd2 Nab6 Qb8 Nc8 Na8 Ne7 Rhd3 Bb2 Qc1 Ra4 Rh3 Ba3 Bd1 Bed3 Rc2 Be2 Qc8 Bd3 Qg4 Be2 Rhc3 Bg7 Bg6 f8N Qg3 Nf7 Be3 Bh6 Bh5 Be4 Kb5 Bf4 Qd8 Ra7 Qb8 Bd5 Bd4 Bd2 Be3 Bdf3 Bf4 Ne3+ Nd3 Bb2 Kb4 Bc6 Nf2 Ba6 Nd3 Ba3+ Ka5 Bab5+
1n3KB1/rN1rNnN1/3NP3/1rbp3b/N2Pk3/1r2q1b1/1QN1Q1r1/4rRR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ba3 Qb6 axb5 Qf6 b6 Qg5 b5 Qd8 Bb4 cxb4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 d4 a5 c4 a4 h4 b3 c5 a3 h6 a2 h5 f6 c6 f3 h7 b2 b7 f2 h6 g4 c7 d6 b6 g3 Nc3 b1R Nf3 g2 Rg1 Rb3 Na4 Rb5 Nh4 Qd7 Nf5 Ra7 Ng7+ Kf7 e3 Kg6 Bc4 f1R Qe2 Rf3 Raf1 Qe7+ Be6 Bd7 c8N Rg3 Kf4 a1R e4 d5 e5 Be8 Nd6 Rgb3 Kg4 f5+ Kf4 Nd7 b8N Ra2 Nc6 Nb8 Nb7 Qa3 Nb4 Bc5 Nc2 Rab2 Ra1 Ra2 Rgf1 g1B Rad1 Bf2 Rb1 Nf6 Bg8 Ng4 e6 Ne5 Ra1 Nf7 Rg1+ Ng5 Ke5 f4 Raf1 f3 Nd6 Na6 b7 Be1 b8Q f2 Qb6 Rd7 Nb7 Nb8 Kf4 Kf6 Kg4 Nf7 Kh5 Ke7 Kg6 Qc1 Nc3 Ra7 Na4 Qe3 Qc7 Bd6 Qc3 Bg3 Qb2 Bb4 Nh5 Bc5 Kg7 Nd6 Bf7 Rf8 Bg8 Rf5 h8N Nf7 h7 Re5 Rc1 f1R Ra1 Rf2 Raf1 Nd8 Nf7 Rg2 Nfd6 Nf7 h8N Re4 Kh7 Re5 Ng7 Re4 Ndf5+ Kf6 Ng6 Re5 Nge7 Kg5 Re1 Kf4 Ref1+ Ke4 Nh5 Nd8 Kg7 Bg6 Kf8 Nf7 Nhg7 Bh5 Ra1 Nd6 Rac1 Nf7 Rcf1 Ng5 Qd2 Nf7 Rd1 Qf3 Nh4 Rf5 Qe2+ Qe3 Ra1 Rf1 Nhf5 Rd1 Rc1 Rdd3 Rce1 Rd1 Ref1 Re1 Nfd6+
1b1r1N2/kBb5/B1rN1P2/R1b3p1/b1NB4/nN3b2/KnNB2P1/Qn3q1b b - - 0 1 illegal: No proof kernel
1Q3R1b/Q4K1Q/1n1bBR1Q/2pQ1q2/bP1n2nQ/1b4b1/1rPbk3/1NBr4 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Nc3 h4 Ne4 Qg5 Ng3 hxg3 Qd5 Qh4 Qd1 Qd8 Kd2 Kf7 Kc3 Kg6 Kc4 Kf5 Kd5 a5 f4 g5 h4 c5 b4 a4 h5 a3 e3 g2 b6 a2 e6 g3 b7 g4 h6 Qg5 h7 Nf6+ Kc4 Ke4 e7 d5+ Kb5 d4 Kc4 d3 e8Q+ Be6+ Kc3 d2 f5 Nbd7 b8Q Nb6 Qg6 Bb3 Rh6 Bd6 Qa7 Rhd8 Ne2 Kf3 h8Q g1B e4 g2 e5 g3 e6 Bf2 e7 g1N e8Q g2 Qgh7 Ng4 f6 Bfg3 f7 Qf5 f8Q Kf2 Rf6 Nf3 Qfe7 g1B Bh3 Nd4 Qeh5 Kf3 Q5h6 Be3 Q8g8 Rd7 Qgb8 Kf2 Qh1 d1B Qd5 Bg5 Qee4 Bd2+ Kd3 Ba4 Nc3 Bf3 Rb1 a1B Rb3 Bb2 Nb1 Ne2 Rf8 Bh8 Ra3 Nd4 Ra1 Nc8 Kc4 Bh1 Qef4+ Ke2 Ra3 Be4 Rf3 Rd8 Qdg8 Bec6 Qd5 Bd7 Qfg5 Be6 Qgh4 Qh5 Re8 Nf6 Qbb7 Be7 Qab6 Nb3 Rf8 Bg5 Qb8 Bc6 Bg4 Ra1 Q6a7 Ba4 Bf5 Bg8 Qdf7 Ng4 Be3 Rd1 Rd8 Ra2 Bc1 Rb2 Rf8 Bd2 Kd5 Nb6+ Ke6 Bed6 Rf1 Bc7 Ke7 Nd4 Bd7 Qg6 Rf6 Qf5 Qa2 Bc4 Be6 Bcd6+ Kf7 Bcb5 Qd5 Bb3 Q7g7 B5a4 Qgh7
2bN1b2/1b2r2P/RRrp3r/B2P3k/r1BR3n/4b1r1/qn2K3/1RBB2QR b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a4 hxg4 Nc3 Kf7 Nd5 Nf6 axb5 Ke8 b6 Ng8 b5 Nh6 Nb4 cxb4 Ra3 Ng8 Ra2 Rh4 Ra1 Rh8 h4 Kf7 d4 e5 c4 g5 f4 a5 b7 d6 h5 e4 c5 b3 b6 g3 f6 b2 h6 Kg6 c6 b1B c7 g2 f7 g4 Ke2 e3 Ba3 g3 Bb2 a4 Bc3 a3 Nh3 g1B f5+ Kh5 f6 g2 Ba5 Na6 b8R a2 b7 Nb4 d5 Ne7 Qc1 Ng6 Ng5+ Nh4 Ne6 Nd3 h7 Nb2 Qc5 Bf5 Qc1 Qd7 Nd8 Qa4 Rb1 Ra6 Ra8 a1R b8R Qa2 Rb6 Bb7 c8B Rg8 Bd7 Rg5 Ba4 Bfc8 Bd1 Rg6 Ra7 Rh6 Ra8 Be7 f8R Bf2 f7 g1R Re8 Bf8 Re4 Rg3 Rd4 Bg1 Bd2 Ra4 Ba5 Rc4 Raa6 Rc6 Ke1+ e2 Qc5 Be7 f8B Be3 Bg7 Bf8 Bf6 Qb3 Bg5 Ra4 Bf4 Qa2 Bg5 Bg1 Bc1 Be3 Re4 Bf4 Qg1 Bg5 Kf2 Bd2 Rg4 e1R Bc4 Re7 Kf1 Be3 Ke2 Re4 Rf4 Re7 Rd4
N2R2r1/3bp1bP/6nn/2b1P3/kB1n1nN1/B2rb3/B2Nq1N1/KQ1nB2N b - - 0 1 legal: proof: c4 b5 b4 h5 a4 d5 cxd5 f5 axb5 h4 g4 fxg4 Ra3 Nc6 Rf3 Nb8 Rg3 hxg3 f4 Kd7 e4 c5 h4 g5 d4 a5 Kd2 c4 Kc2 a4 Kb2 g2 f5 c3+ Ka1 a3 b6 g3 b7 g4 d6 Kc6 b5+ Kb6 e5 Ka5 f6 c2 b6 a2 d5 Bd7 h5 Bh6 f7 Ra7 f8N Be3 h6 Bc6 d7 Qc8 d8B Be8 d6 Nd7 b8B Ka4 b7 Qc4 h7 Nh6 Ng6 Nf8 d7 Rg8 Ne2 g1B Nh4 g2 Ng3 Ng6 Ba5 Qe2 d8N Bd7 Bd6 Bgf2 b8N g1N Bdb4 Nh3 Bca3 Nhf4 Qe1 c1B Nf7 Ra8 Na6 Rad8 Rh3 Bg1 Nh1 g3 Nc7 g2 Rg3 Bc5 Rg4 Bge3 Na8 g1N Nd2 Ngh3 Ng2 Nf2 Rg3 Nd1 Rg4 Qf2 Bc4 Qe2 Rg5 Bc8 Rf5 Rd3 Rf6 Bf5 Rc6 Bd7 Rc8 Bf2 Rb8 Bh4 Rd8 Bf6 Nf3 B1e3 Nd2 Bg7 Qg1 Nf2 Qb1 Nd1 Ng5 Bh8 Nge4 Bg7 Nf6 Nf2 Kb2 a1N Ba2 Nb3 Ng4 Nd4 Ka1 Nd1 Nc4 Nf3 Be1 Nd4 Nd2 Nb5 Bc3 Nd4 Bcb4
1nNR1q2/1Q6/r1R4n/1BR1N2N/1brrpP1b/2qrk2R/4P3/NN1bb2K b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 b3 fxg4 Ba3 h5 Bd6 h4 Bg3 hxg3 f4 Kd7 h4 Kd6 d4 e5 b6 c5 b7 g5 b4 a5 b5 c4 b6 g2 Kf2 c3 h5 e4 h6 c2 h7 c1Q Rh3 a4 Qb3 a3 Nf3 g1B+ Kg2 g3 Ne1 a2 Nc2 g4 Kh1 Bf5 Rh6+ Qf6 Bh3 Bd7 Rh5 Ba4 Qb5 Na6 b8N Nh6 Nc6 Rc8 b7 Nb8 Ne5 Rc4 Rf5 Rg8 h8R Qa3 Rh7 Bf2 Rc7 Be1 Rc6+ Ke7 d6+ Ke6 Qb6 Kd5 d7 Bfb4 d8N Qf8 Ndf7 Qc3 Nd6 Rg6 Nc8 g2+ Kh2 g1B+ Kh1 g3 Rg5 Rc5 Bd7 Bgf2 Rh5 Rd6 Rh3 Rc4 Qa7 Na6 b8N Bb3 Qb7 g2+ Kh2 g1R Be8 Qd2 Nbd7 Rg3 Kh1 Nb8 Nf6+ Ke6 Qb6 Rd3 Qb7 Qc3 Nh5 Bh4 Rc5 Rd5 Bb5 Rd7 Ne3 Bd1 Nc2 Rd6 d5+ Kf5 Nf3 Kg4 Rc6 Rd7 d6 Rd8 d7 Rdd4 Nbd2 Rd3 Rc1 a1R Nb1 Ra6 Na1 Rdd4 Rh2 Rd3 Ng7 Kg3 Rh3+ Kf2 Nh5 Ke3 Rc5 Re8 d8R Re5 Rc2 Red5 Ne5+ Bhg3 Nd2 Qa3 Rd6 R5d4 Nb1 Rcc3 Rcc6 Rc5 Nf3 Bh4 Rd8 Qb3 Rb2 Rc1 Rbc2 Qa3 R2c5 Rcc4 Rd7 Qb3 Rd8 Qc3 Ne5+
b1BQr3/B1kr1Q1q/2Bb2q1/np3PNB/N4B2/qP4b1/b1B5/q1nK1R2 b - - 0 1 legal: proof: e4 f5 h4 fxe4 c4 d5 cxd5 g5 hxg5 a5 Qf3 a4 Qd1 a3 b3 Nh6 Nc3 Nc6 Rb1 Ng8 Rb2 axb2 a4 Nb8 g4 Kd7 f4 b1B d4 b5 f5 e5 a5 c5 a6 h5 a7 c4 g6 e3 d6 h4 g5 e4 d5 h3 g7 h2 g6 e2 Qd4 Nc6 Nh3 Qb6 Qd1 Na5 Kd2 e1B+ Ke2 e3 Na4 c3 Ng5 Ne7 g8B c2 g7 Bg3 Bf7 Nec6 g8B Ne5 Bh5 Nd3 Be6+ Kd8 d7 Bb7 Bg2 Rh7 Be4 Ba2 Rf1 h1Q Bd2 Rc8 a8B c1Q Qe1 Qcc5 Kd1 Nc1 Bc2 Qa3 Qf2 Kc7 d8B+ Kd6 Be7+ Kc7 Bc5 Re8 Bc8 Qg6 Ba7 Bfd6 Qf4 Qh4 Qe5 Bc6 Qf6 Rd7 Qf7 Bb7 Be2 Qhh7 Bh5 Ba6 Bc6 Bb7 Bc3 Ba8 Be5 Kd8 Bf4 e2+ Kd2 Be7 d6 Bf8 B2e4 e1Q+ Kc2 Qc3+ Kd1 Qa1 Bb1 Rb7 d7 Bd6 Bc2 Kc7 Bc5 Kb8 d8Q Rd7 Qdf6 Kc7 Ba7 Bh4 Q6e7 Bg3 Qd8+
b5k1/BP1R2pn/1p2BnPB/1rbNbr2/1rQ4q/KB1N3N/6q1/2n2N1N b - - 0 1 illegal: No proof kernel
6RB/1k3qP1/7N/2nn1pR1/r1QN1PNK/b2qbr2/1N1p3R/1bnN2rR b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 b4 a5 f4 h5 Kf2 c5 g4 f5 b6 a4 b5 c4 b7 a3 e4 h3 Kg3 c3 b6 a2 e5 d4 g5 Kd5 g6 Kc6 e6 h2 e7 c2 e8N d3 Nh3 d2 Bb2 c1B Nf6 Ne7 Qf1 Ra4 Kh4 Na6 b8N+ Kb7 Qc4 Nc5 Na3 Nd5 Nf2 Be7 Rb1 a1N Nc6 Nab3 Nd1 Qf8 d8R Qf7 Re8 Be6 d7 Rg8 Nd4 Bf8 Kg5 h4 Ng4 h3 Kh4 Rg7 Rg1 h1Q Rg2 Qf1 Rh2 Bd6 Rg8 Qd3 Ba1 Bb8 Bc3 Ba7 d8N+ Kc8 b7+ Kb8 Nac2 Ba3 Nb2 Nc1 Nce3 Kc7 b8R Bb6 Re2 h2 Ned1 h1R+ Rh2 Rf1 Ra8 Rf3 Ra6 Qd7 Nf7 Kb7 Nfh6 Qf7 Raa8 Nc7 Rae8 Bd5 Ree2 Be4 Reg2 Nd5 Nc2 Rh7 Bh8 Rg7 Nd4 Na6 Nc2 Be3 Nd4 Nc5 Ndf2 N1b3 Rbh1 Nc1 Nfd1 Qf1 Ne5 Bb1 Rg5 Qd3 Rd8 Rg8 Neg4 Re8 g7 Re6 Rg8 Rg6 Rh5 Rg5 Nf6 Rg2 Rg5 Rg1 Nfg4
1B2r3/Q1n1k1QK/B2bp1P1/2rpPQ1R/3RQq2/3q3N/3rq3/QnQb3b b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 g4 h6 g6 Ba6 Nc3 Bb7 Ne4 Bc8 g5 h5 Nf2 Na6 Ng4 hxg4 Ra2 Nb8 Ra4 Nc6 Ra1 Nb8 Kd2 d5 b4 a5 e4 f5 h4 a4 c4 a3 c5 a2 g7 g3 g6 f4 h5 d3 c6 f3 Ke3 g2 Kf4 f2 Kg5 d2 h6 Ra5 b6 Bd7 b7 Na6 b8Q Bg4 h7 Be6 c7 Bh3 c8Q Nc7 b5 Nf6 b6 Rc5 Qf5 e6 Kh6 Bd6 g8Q+ Ke7 b7 Qf8+ Qg7+ Qf7 Bb2 Re8 Ba6 f1Q h8Q Qd3 Qc1 d1B Qa7 Bhg4 b8Q Bgf3 Nh3 g1R Ba3 Rg2 Qb4 Rd2 e5 Ne4 Kh7 Nc3 Qbe4 Qe2 Rb1 a1Q Rb4 Qb1 Rd4 Qbd3 Qa1 Ra8 Qhb8 Bg2 Qbb2 Nb1 Qc1 Rg8 Nf2 Rb8 Rh5 Bh1 Nh3 Re8 Qa8 Rcc2 Bc5 Rc4 Ba7 Rc3 Bb8 Rc5 Kh6 Qc4 Qa7 Qcd3 Qh8 Qf6 Kh7 Qh4 Qg8 Qf4 Qg7+
2NR1k2/b2bN3/Pr2qN2/2N1B1pr/qn1Knb2/Q2p1NP1/nRN5/Q1q5 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 h5 dxc5 a5 b4 axb4 g3 h4 Bg2 h3 Qd4 hxg2 Qd3 Rh3 Qd1 Rh8 Ke2 e5 Ke3 d5 h4 g5 a4 b5 f4 e4 c4 b3 a5 b4 f6 b2 a6 b3 f5 Qc7 f7+ Ke7 f6+ Ke6 c6 Kd6 c5+ Ke6 h5 Nd7 h6 Nb8 h7 Qf4+ Kd4 Bd6 f8N+ Kf7 c7 Bd7 Na3 b1N c8N b2 c6 Nc3 c7 b1Q Ne6 Na2 Bb2 Qbc1 Nc5 Kf8 f7 Nf6 Rh2 Qg4 Bc3 Bf4 Ne7 e3 c8N e2 Nf3 e1Q Nc2 Ne4 Rb1 Ra7 Rb2 Rb7 Rh6 Rb5 Rd6 Rb6 Qd3 g1B+ Qe3 Rg8 h8Q Bf2 Qh1 Rh8 Qf1 Rh5 Qg1 Kg7 f8N Kf7 Nh7 Nc6+ Kd3 d4 Nf6 Kf8 Ne8 Ncb4+ Kc4 Ba4 Rd8 d3 Be5 Qe6+ Kd4 Qed1 Qe1 Bd7 Qc3 Be1 Qg1 Bed2 Qa3 Be1 Na1 Qa4 Nc2 Bed2 Bf6 Bb8 Be5 Bf4 Qd1 Ba7 Qe1 Qd2 Qa1 Qc1 Nf6+
5N1r/nr1q1Q2/2b1q3/QNBp3b/B2Q4/RrQQ1pqn/2QPP1k1/b1K5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ra2 Qb6 Rb2 Qg6 axb5 Qf5 b6 Qg5 b5 Qd8 Rb4 cxb4 c4 Ke7 h4 Kf6 c5 Kf5 c6 Kg4 c7 Kg3 h6 g5 h7 f5 h5 a5 b7 b3 b6 f3 h6 b2 Qc2 a4 Kd1 a3 Rh4 g4 Qa4 a2 Qe4 a1Q Rh1 f4 Qd3 Qa2 Nc3 b1R Nh3 Nc6 b8Q Nf6 b7 Ra7 Qa8 Bg7 b8Q Qe6 Qbb7 Nd5 Bg2 Rb3 Nb5 Ba1 Ng5 d6 Bb2 Qdd7 Kc1 Kf2 Rh4 g3 Rh3 Kg1 Ba3 f2 Be4 g2 Bc5 Kf1 Bg6 g1Q Be8 Qh2 Re3 Kg2 Rf3 f1B Rh3 Raa3 Qa5 Qg3 Qba7 Bb7 c8Q Ba8 Qab7 Na7 Qbc7 Bc6 Q7b7 Qd8 Qf7 Qdd7 Qcc7 Rb4 Qc8 Rab3 Qcc7 Rf8 h8Q Rg8 Qhc3 Rh8 h7 f3 Rh5 Nf4 Qc8 Qeg4 Ne6 Nh3 Nf8 Qge6 Re5 d5 Re3 Rf4 Qcc2 Ra4 Qcc7 Raa3 Qac3 Ra6 Q7a5 Rb6 Re4 Rb8 Ra4 Rb7 Ra3 Rg8 h8Q Ng1 Qfg7 Qc8 Qg4 Bd7 Nh7 Kh1 Qhf6 Rh8 Qfg7 Bh3 Nf8 Kg2 Qf4 Bg4 Qgf7 Nh3 Nd6 Bh5 Qg4 Bb5 Bc6 Qcd7 Qgd4 Bc4 Ba4 Bb5 Nc4 Bc6 Nd6 Rh6 Nb5 Rh7 Qdb4 Rh8 Qbd4
1nbnNBR1/4RR1R/1p1p3B/r3rr2/qkBbq3/5Q2/BP3P1B/K4bq1 b - - 0 1 illegal: No proof kernel
1R3r2/1BBkn2N/2pN1B1P/1p3r1q/n1PN2N1/KbB1b3/4bn2/nNn2Q2 b - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 h5 a4 f5 gxf5 Nh6 b4 axb4 Ra3 Ng8 Rg3 Rh7 Rg2 Rh8 Rg4 hxg4 Kd2 d5 h4 b5 f4 g5 c4 b3 Kc3 d4+ Kb2 g3 e4 d3 f6 d2 f5 g2 e6 g4 f7+ Ke7 f6+ Kd6 e5+ Kc6 a5 g3 e7 Kd7 e8N Bg7 f8B Bb7 e6+ Kc6 h5 Na6 e7 Qd5 Ne2 g1N Nd6 g2 e8N Kd7 Be7 Nc5 a6 Na4+ Ka3 b2 f7 Nh3 f8B g1N a7 Bh6 Bf6 Ne7 Bg2 Nf2 Qf1 d1B Nd4 Ne2 Bf4 Bb3 B8g7 Nc1 Rh2 Rc8 a8N Rf8 Bg3 Be3 Nb6+ Kd8 h6 Qh5 Nd7 Bf3 Ne5 Be2 Bb7 c6 Ng4 Kd7 Rg2 Rb8 Nf7 Rc8 Ng5 Rf7 Nd6 Rcf8 Bfe5 Rf5 Bgf6 Nd1 Be1 Nf2 Nh7 Kd8 Bc3 Kd7 Nd2 b1N+ Kb4 Na3 Nb1 Bg5 Rg3 Bf4 Re3 Bg5 Re4 Be3 Bh2 Nc8 Re8 Ne7 Rb8 Nc2+ Ka5 Na1 Kb4 Qf7 Ka3 Qd5 Nf7 Qh1 Bc7 Qh5 Nd6
RK5n/B2pr2b/2rB1b2/1Pn4p/4Q3/1N4Qk/NB2qB1P/nBBr2nn b - - 0 1 illegal: No proof kernel
3BqrBN/3r3B/n1b2RN1/r1n5/2pkBp1K/NQ1N1P2/5n1P/rb2b2B b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 hxg4 bxa5 Rh3 Bb2 Rh4 Bc1 Rh8 a4 e5 d4 Ra6 d6 Rh5 d5 Ra8 Ra3 Rh7 Rd3 Rh8 Rd4 exd4 e4 Kd7 e5 g5 a6 f5 a7 c5 a5 b5 a6 d3 Nf3 g3 Qb3 c4 Nh4 g2 Na3 g1N Ng6 g4 Bg5 Qe8 Bd8 Bb7 e6+ Kc8 e7 Kd7 Be2 Nh3 Rf1 b4 Bf3 g3 Be4 d2+ Ke2 d1R Kf3 g2 Kg3 Bh6 Kh4 g1R Bb1 Qf7 Be4 Nf6 e8B+ Kc8 Bc2 Bc6 Be4 Qf8 Bf7 Kd7 Bg8 Bd2+ Bh7 Be1 Bh1 Ke8 d7+ Kf7 d6 Qe8 Bd5+ Kg7 Bg8 Ne4 Bg5 Qf8 d8N Nc5 d7 Qe8 Nb7 Rh1 d8N Rd7 Nf7 Rg1 Be3 Kf6 Bg5+ Ke6 Bd8 Kd5 Qg3 Kd4 Qb3 Ne6 Nc5 f4 Nd3 Rg5 Rg1 Ra5 Rg5 Nc5 Rf5 Rb7 Rf6 Re7 Qb1 b3 Qd1 b2 Qb3 b1B Qb7 Nbd7 Qb3 Rc8 a8B Nb8 a7 Nba6 Bb7 Rd7 a8B Rcc7 Bc8 Ra7 Bcb7 Bb5 Bh1 Bc6 Bb7 Ra8 Kg4 Ra7 f3 Nf2+ Kh4 Ba4 Be4 Bc6 Nfe5 Ra8 Bf7 Rf8 Bfg8 Rb8 Nh8 Rb6 Qa4 Rb2 Qb5 Ra2 Neg6 Ra1 Qb3
b2bNbQN/RNpnR1RK/8/q1P1P3/2R3r1/NpR1rrk1/b3n1B1/n7 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 h6 g6 Qe7 g7 Qd8 g4 Bd6 g5 Be7 g6 Bf8 Bg5 hxg5 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kd4 Kf5 h4 Kf4 e4 f5 a4 b5 c4 b3 a5 b2 c5 b4 a6 b3 h5 g4 e6 g3 e7 g2 e8N Nd7 e5 Ngf6 g8R Bb7 a7 Ne4 h6 Kg3 h7 f4 g7 f3 Qc1 f2 Qd1 Nc3 Nh3 g1B Na3 b1B Ng5 Ba2 Bg2 f1R+ Kd3 d4 Rh4 Rf5 Nf7 Ne2 Nfd6 Be3 Qg1 Rf3 Rc1 Rc8 Rc3 Ba8 Nb7 Bg5+ Ke4 d3 Rf4 d2 Kf5 d1N Kg6 Ne3 Rfc4 Bh4 Kh6 Nc2 Kg6 Na1 Kh6 Bd6 Rf8 Bde7 Rf7 Bf8 Re7 Rg8 h8N Re3 Kg6 Rb8 Kh7 Qc8 Nbd6 Qa6 Nb7 Qa5 Rf7 Bd6 Re7 Rf8 g8R+ Bg5 Re6 Rff3 Rg7 Bf8 Ree7 Rd8 Qd1 Rc8 Qd5 Rd8 Qg8 Rb8 Nbd6 Rb6 Nb7 Rg6 Re6 Bd8 Ree7 Rg4 Nbd6 Bc6 a8R Bd5 Ra7 Ba8 Nb7
2R1RBN1/1nkB1nn1/Q1n1Q1pb/8/QQnpP1Q1/3q2q1/brr3P1/K2Q4 b - - 0 1 illegal: No proof kernel
1r2N1Qb/1bpP2Bq/1QN1Rrp1/n4rBB/2n2q2/2P1rr1B/K2kB3/2B5 b - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 g5 fxg5 b5 axb5 Qd5 g6 Qd8 g4 Be6 b4 Nd7 g5 Ba2 g7 Ngf6 g8B Bc4 g6 Nb8 g7 Be6 Ra6 Bc8 Rd6 Nh5 Rh6 Nf6 Rg6 hxg6 h4 Kd7 d4 Ke6 Kd2 Kf5 Kc3 a5 Kb2 e5 c3 a4 h5 e3 h6 Kf4 d5 a3+ Ka2 e4 d6 Nfd7 h7 f5 b6 Qh4 b5 Nc6 b7 Ra5 b8Q Nde5 b6 Bb7 d7 Nc4 Nd2 e2 Bd5 Ke3 g8B e1R Be2 f4 Qb3 f3 Bge6 f2 Ngf3 f1R Nd4 Qf4 Bh3 Bg7 Qg8 Rf3 Rf1 Rd1 Re1 Rc5 Qb5 N6a5 Nc6 Bd4 Bde6 Rf5 Qb4 Rf6 Beg4 Be5 Bh5 Rf5 Qe6 Rb8 h8B Rf6 Qg8 Rf5 Rg1 Rdf1 Bg7 R1f2 Re1 Bf6 Bh6 Bh8 Bg5 Rf1 Bd1+ Kd3 Be2+ Kc2 Qb5 e3 Ne4 R1f2 Nf6 Rf1 Ka1 a2 Ne8 R1f2 Rd1 Rf1 Rd6 Rf6 Re6 R1f2 Bef1 e2 Qa6 e1Q Be2 Re3 Qb5 Rff3 Qc5 Qeh4 Qb5 Ba6 b7 Rf5 Qb6 Rf6 B5g4 Qh7 Bh5 Rf5 Ba3 Rf6 Bf8 Kd2 Bg7 Rc8 b8B Bb7 Ba7 Rb8 Qf8 Na3 Kb2 a1R Qg8 Raf1 Ka2 N3c4 Qa6 Rh1 Bd4 Rb1 Qb6 Rb5 Be5 Rc5 Bd6 Rb5 Ba3 Rbf5 Bc1+
5b2/2qp3r/N1nP3q/1rRkPB2/RR2RQp1/R2bB3/nK1b1Q2/1b2R2r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Nc3 Ne7 Nd5 Ng6 axb5 Ne7 b6 Ng8 b5 Qe7 Nb4 cxb4 Bg2 Qg5 Bf1 Qd8 h4 Ke7 e4 Ke6 c4 g5 d4 f5 Kd2 a5 Kc2 a4 d5+ Kd6 b7 g4 h6 f3 h7 f2 c5+ Ke5 c6 f4 h5 a3 c7 a2 h6 b3+ Kb2 f3 b6 Qe7 Qe1 Ra7 Nh3 Qb4 Ng5 Na6 b8Q Qb5 b7 Qc5 Bd3 f1R Qf2 Ne7 Ne6 Nc6 Be3 Nab4 d6 Qb6 Nc5 Ra5 Na6 Rb5 Re1 Qa7 Rh3 Rh1 Qa8 Ke6 b8R Bb7 e5 Kd5 c8R Qb6 Qa7 Qc7 Bf5 Ba8 Qg3 f2 Qf4 f1Q Rh2 Qh3 Rhe2 Rg8 h8R Rg7 h7 Qh6 Rg8 Rf7 h8R Rh7 Rg5 Bb7 Rh5 Ba8 Rh3 a1B+ Kb1 Bc3 Rf3 Bd2 Kb2 Rc5 Rb5 Na2 Rb4 Rb5 Ra4 Rc5 Rb8 Ra5 Rbb4 Rb5 Qb6 Bg7 Rc8 Bf8 Bg1 Bb7 Ree4 Ba8 Qf2 Bb7 Kb1 b2 Rfa3 Ba8 Kc2 b1B+ Kb2 Bd3 Qg2 Bb7 Be3 Bb1 Nb8 Ba6 Qg1 Rb7 Qgf2 Bad3 Na6 Rb5 Rb8 Ra5 Rbc4 Rc5 Rbb4 Rb5 Rc5+
2RQQQ1r/3K2n1/2BQ1qBN/bk2b2p/3p3R/3b3P/1nrPQ2q/1Q3n1n b - - 1 2 legal: proof: b4 c5 a4 b5 axb5 f5 e4 Bb7 exf5 Qc7 b6 Bc8 b5 Qd8 f4 g5 f6 Bb7 f5 Bc6 Nc3 Be4 Nce2 Bb7 Ba3 Bc8 Nf4 gxf4 Bb4 cxb4 Kf2 e5 Kf3 d5 Kg4 Kd7 c4 a5 c5 e4 f7 a4 f6 h5+ Kf5 f3 g4 b3 b7 b2 b6 b1Q g5 e3+ Bd3 e2 g6 e1N g7 a3 Qe2 f2 Nf3 f1N Nd4 Na6 b8Q a2 b7 Nb4 h3 Bd6 f8Q Bc7 f7 Nf6 g8B Ba5 Qf4 Qb2 b8Q Ba6 Qfe4 Qe7 Qbe8+ Kc7 c6 Kb6 c7 Rc8 Bh7 Qd6 Bg6 Qh2 Bb5 Ned3 Ke6 Nf2 Qb1 Nbd3 Nf5 Qd4 Bd7+ Nb2 Nh6 Bd3 Bc6 Qc3 Qd8 Ne8 Qfd6 Qf6+ Kd7 Ng7 f8Q Ka6 Rg1 Nh1 Rg4 Kb6 Rh4 Ka6 Qbe1 Kb6 Rc1 a1B Rc2 Ka6 Ba8+ Kb5 Qb1 Rb8 c8Q Rb6 Rc7 Rc6 Qde8 Rc3 Qcd8 Rc2 Qc1 Nd1 Rcc4 Be5 Qb1+ Nb2 Rc8 d4 Bc6+
B3B2b/p1b1rk2/K3n3/B4n2/q1RpNr1B/qbQ4B/1qPPq3/Q1BR4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 fxe5 c6 Na3 Rh4 axb5 Rh5 b6 Rh8 Nb5 Na6 Nd4 Nb8 b5 c5 Nc6 Qg5 Nb4 cxb4 Ba3 Qe7 Bc1 Qd8 h4 d5 e4 g5 Ke2 f5 Kd3 d4 Kc4 g3 h5 g4 h6 f4 e6 f3 e7 f2 e5 b3 h7 b2 b7 b1Q b6 g2 Ra6 g3 Ra4 Be6+ Kc5 Bg7 Ne2 g1Q Bh3 f1Q Rc4 g2 Ng3 Qe2 Ne4 Nc6 b8Q Qge3 b7 g1B Qc8 Bh2 b8B Nh6 Bc7 Rf8 h8B Nf5 Ba5 Kf7 Qg1 Qa1 Kb5 Qa4+ Ka6 Qea3 Qc7 Qb8 e8B+ Kg8 Qc8 Nd8 Bc6 Qbb2 Qf1 Rb8 Ba8 Rb7 Qc7 Bd5 e6 Bhe5 e7 Ne6 Qc5 Bc7 e8B Bge5 Bg7 Rf7 Bf8 Bh8 Be7 Kg7 Bh4 Re7 Bd7 Kf7 Qb4 Rb8 Qc3 Rg8 Qg1 Rg4 Be8+ Kg7 Qge3 Rf4 Rd1 Kg8 Qb3 Kg7 Qa2 Kg8 Qa1 Kg7 Bb5 Kf7 Qc3 Rf2 Rc6 Bb3 Rc4 Rf4 Be8+
1b1R1BQq/5p2/Pp1nrQ2/2NBq1br/1P1r3k/1KRn1B2/B4BBb/1b6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 a4 Nd2 Qe7 Nb3 axb3 Qd4 Qf6 Qd1 Qd8 Kd2 Ke7 Kc3 g5 e4 d5 a4 b2 h4 b1R c6 g3 e6 Kf6 c7 b6 a5 g2 h5 g4 h6 g3 e5+ Kg6 e7 Kf5 e8B Rh7 a6 Qg5 e6 Qg6 e7 Qg7+ Qd4 Rb2 Bc6 Qh8 e8B Be7 Be3 Bg5 Rc1 Nf6 Ne2 g1B Bg2 Nbd7 Nf4 Kg4 Bf2 Bh2 Rhd1 Ne5 Nd3+ Kh5 Bed7 Ne8 Nc5 Nd6 Be6 Nd3 Qf6 Kh4 Bg4 Bb7 B4f3 Re8 c8Q Re6 Qg8 Ra2 Kb3 d4 c4 Rd2 Bce4 Bc6 Bd5 Ba4+ Ka3 Bc2 Ka2 Bb1+ Kb3 Nf4 Rc3 d3 Re1 Rd1 Re3 d2 Red3 Rg7 h7 Rg6 Nd7 Rh6 c5 Rh5 c6 Re5 c7 Re6 Re3 Nd3 c8B Rh1 Re2 d1Q+ Rec2 Qe1 Rd2 Qe5 Nc5 Re1 Bcb7 Re4 Bc4 Rd4 Bbd5 Qg7 h8B Qh6 Bf1 Qh7 Bg7 Qh8 Be3 g2 Bf2+ Bg3 Bf8 g1B B1g2 Bh2 Ka4 Ne8 Ba2 Nd6 Kb3 Nb7 Bg7 Qe3 Bh3 Ne1 Bhg2 Rd3 Bg1 Bb8 Bc4 Qe5 Bf8 Rd8 Rd7 Nd3 Bf2+ Qg3 Rc7 Rd4 Rc8 Nd6 Bcd5 Rde4 Bg1 Qe5 Rd8 Rd4 Bf2+
3Qr1r1/B1BrBKpp/N3Q2q/2N1Pk1n/1RB4P/5B1q/5bb1/1b1b1Bn1 b - - 0 1 legal: proof: d4 b5 g4 c5 dxc5 f5 b4 fxg4 a4 e5 axb5 Be7 Ra6 Bf8 Rd6 Nh6 Rd3 Ng8 Rd4 exd4 Kd2 Ke7 Kd3 Kf6 Kc4 a5 Kd5 d6 c4 d3 f4 d2 e4 a4 h4 a3 c6 a2 f5 a1R c7 g3 c5 g2 c6 Qd7 b6 R1a2 b5 R8a6 b7 R6a4 e5+ Kf7 b6 Re4 f6 Kg6 f7 Qd8 Qg4+ Qg5 Na3 d1B Nb5 Bf5 c8B Bf3 c7 Ra8 Ne2 g1Q Ng3 Qh2 Be6 Bg2 c8B Nc6 b8Q Nd4 b7 Ne2 Be3 Ng1 Nc7 Qh3 Na6 Ra4+ Ne4 Rd4+ Kc6 d5 Kd7 Rd2 Ke8 d4 Bec4 d3 Ba7 Bc5 f8B Bf2 Nec5 Nf6+ Ke7 Bfe4 Qe6 Qh6 Qbd6 Rb8 Qd8 Rg8 Bd7 Rd1 Bc6 d2 Rh2 Ra8 b8B Bb1 Bc7 Rb8 Bf3 Rc8 Qc6 Kf5 Kf7 Nh5 Be7 Ra8 Qd4 Rae8 Qd8 Re1 Rh1 d1B Qcd6 Re3 Qb6 Rd3 Qe6+ Kf4 Rh2 Rd7 Rh1 Qg3 Rh3 Qg4 Rg3 Qh3 Rg4+ Ke3 Bcd3 Qh2 Ra4 Qh3 Bc4 Kf4 Qb6 Kf5 Rb4 Qd2 Qd6 Qh6 Qe6+
1BB4K/p1NqqR1n/1B6/R1rq1rPr/n5RQ/b5Rb/P1k1pB2/5Br1 b - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 b4 dxe4 bxc5 g6 f5 Rh6 Na3 Rh7 Nc4 Rh8 Ne5 Bg7 fxg6 Bh6 g5 Bf8 Ng4 hxg4 Kf2 Kd7 Ke3 Ke6 Kf4 Kd5 h4 Kd4 c4 b5 h5 f5 c6 e6 g7 e3 h6 g3 c7 b4 h7 b3 c5 b2 c6 b1Q Qe1 e2 Nh3 Kd3 Ke5 f4 Rg1 f3 Nf4+ Kc2 d4 f2 d5 g2 d6 Qe8 d7 Nh6 Kf6 e5 d8B e4 g8R e3 Ne6 Ba3 Kg7 Qb5 Rf8 Na6 Rf7 Qd5 Bd2 Bd7 c8B Ng4 Bb6 Nf6 c7 Nc5 Rb1 Qe7 Rb4 Na4 Rg4 Qd8 Bc1 Qe8 Qb4 e1Q Bb2 e2 Be5 Qed2 Rg3 Qe7 Qh4 Rd8 h8B Nh7 Nf8 Bh3 Ne6 Rd6 Kg8 Rc6 Bhg7 Qe4 Kh8 Rc5 Bd4 Qf3 Bge5 Qd5 Rg4 Qf3 Kg8 Nf8 Ba6 Qb7 c8R Rc4 Rc5 Qbd7 Ra5 Rc5 Bec7 Rc8 Bb8 R8c6 Nc7 Nh7 Bb7 Rh6 Bc8 Rh5 Kh8 Qd3 Rh1 Qc4 Rh2 g1R Rhg2 Qb3 R2g3 Qbd5 Bg2 f1R Be3 Rf4 Bf1 Rf5 Bf2
1B1R4/4qk1n/b1n3Rp/4BKBP/rbn2R2/3Rp2P/B1n2Rn1/2Qr1Nn1 b - - 0 1 illegal: No proof kernel
3N4/2n1N1Qb/2nk4/2n1bQn1/r3R1PK/rRpN3N/2P2rBp/rNN2q2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 e4 Ke7 e6 f6 e5 Ba6 Bf4 Bc8 Bg3 Ke8 e7 Kf7 e6+ Kg7 Be5 fxe5 Qe2 Kg6 Qd1 Kf6 e8Q d5 f4 a5 Kf2 c5 g4 h5 b4 a4 e7 Ke6 f5+ Kd6 f6 h3 Kg3 a3 b6 e4 b5 c4 f7 h2 b7 c3 b6 a2 Bh3 d4 Qf3 d3 Bf1 h4+ Kh3 e3 Qe4 e2 Qf3 e1N Bg2 d2 Qf5 d1N Ne2 Bg7 f8N Nb2 Nd7 Na4 Ne5 Nc5 Qef7 Nc6 b8N Ra3 b7 Nf3 Re1 Nf6 Nd3 Qf8 Nec1 Ne8 Re4 Be5 Qg7 Nc7 e8N+ Kd5 Nf6+ Kd6 Qh5 Bf5 Nd5 Bh7 Qf5 Qf7 N5f4 Rf8 Na6 Ra8 Nab4 R8a4 b8N Qc4 Nbd5 Qa6 Bf1 Qb5 Ne7 h1R+ Kg2 h3+ Kg3 h2 Bg2 Ng5 Kh4 Rf1 Nh3 Na5 Nbc6 Rf2 Nd8 Nc6 Nd2 Qc4 Rb1 a1R Rb3 Qb5 Nb1 Qa6 Ndf4 Qf1 Nfd3
1rQQ4/b1nb2P1/1k1rqp2/2n3p1/4nN2/b5P1/1NRnNNBN/b1KR3N b - - 0 1 illegal: No proof kernel
2R1q1bR/RKb1B3/RQ1r1n2/pN2pbn1/3r2k1/rPR2N2/P5Qb/r3R3 b - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 b5 gxh5 Ke7 c4 bxc4 e6 Na6 Nd2 Kd6 e7 Kc6 Nb1 Nb8 e8R d6 e4 Ba6 e5 Qc8 e6 Qd7 e7 Qd8 Bh3 Bc8 Be6 fxe6 Kd2 Kd7 Ke3 c5 Ke4 g5 f4 c3 h4 c4 h6 c2 h5 g4 h7 e5 Kd5 g3 f5 g2 f6 c3 h6 Na6 f7 Nf6+ Kc4 Ke6 Kb5 Kf5 Kc6 d5 Qe2 d4 Qe1 d3 Rh2 d2 Qg3 d1B Nf3 g1B Qg2 Nc7 Bg5 c1R Rh3 c2 Na3 Bh2 Nb5 Ne6 b3 Be2 Rb1 Rd1 Rg3 Rg8 h8R Rg6 h7 Rd4 Re1 Bc4 Bh4 Bd7+ Kb7 c1R Rg8 a6 h8R Ng5 Rg7 Ra1 Rgh7 Kf4 Rh6 Bf5 R8h7 Bg7 Reh8 Bf8 e8Q Bd6 f8R Bg8 Qc6 Qe8 Qb6 Bc7 Rh3 Ra4 Re7 a5 Rg7 Rd8 Rgf7 Rdd4 Rd7 Qf7 Rc8 Qe8 Rdh7 Ra3 Rd7 Nh5 Rg7 Rgd6 Rd7 Nh7 Be7 Ng5 Re6 Nf6 Rg3 R6d5 Rc6 Rd6 Rc3 Nge4 Rg6 Ng5 Nh4 Nh5 Ka7 Rc6 Nf3 Bd6 Qb7 Rb6 Re6 Nf6 Ka8 Bb8 Qc6 Ra6+ Ra7 Bd6 Kb7 Bc7 Qe2 Kg4 Qc5 Rad6 Qd2 Rd7 Rea6 Rd8 Qb6 R8d6 Qg2+
6kb/bpb1R1r1/p2N1Q1R/1QRb4/1b1Nq1R1/PP5R/B2R1qr1/3r2nK b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 f5 Bg2 d5 cxd5 f3 Bf1 f4 b3 h6 Bb2 Nc6 Bf6 Nd4 Bg5 Nf5 gxf5 hxg5 Kf2 Kf7 h4 c5 d4 c4 e4 g4 a3 g5 e5 c3 d6 c2 f6 c1B h5 a6 d5 Bb2 h6 Qe7 d7 Rh7 d8Q Be6 d6 Bd5 d7 Rg7 h7 Nh6 h8R Nf5 Ne2 g3+ Kg1 g2 Nd2 g4 R8h3 Nd4 e6+ Kg8 Rc1 f2+ Kh2 f3 Rc5 Qe8 e7 Qg6 e8R Qe4 Nc4 g1B+ Kg3 Ba1 Re7 Bb2 Bg2 f1R Nd6 f2 Qd3 Rd1 Qb5 Nf3 Nd4 f1Q Qdb6 Be3 d8R Ng1 Kh2 Qff5 Bf3 g3+ Kg2 Bec1 R1h2 Bc3 Kh1 Bf4 Rh6 Be5 R2h3 Ba5 Q6c6 Bc7 Bg2 Qf2 Rdd7 Qd3 Be4 Re8 Nf3 Qde2 Bb1 Qe4 Ba2 Bd4 Rd8 g2+ Kh2 Bc3 Nd4 Bb4 Rdd7 Rg5 Qcb6 Bg7 Rd8 Bh8 f7+ Kg7 Q6c6 Rg8 f8R+ Bf7 Ree5 Bd5 Rf4 Rg6 Rg4 Rg5 Nc4 Kf7 Qcb6 R8g7 Rd7+ Kf8 Qf6+ Kg8 Nd6 Ne2 Nf3 g1B+ Kh1 R5g6 Ree7 Rg5 Rgh4 Rg2 Rg4 Bh2+ Ne1 Ng1 Nf3 Bb8 Nd4 Ba7 Rc2 Bg3 Rd2 Bf4 Rc7 Be5 Rc5 Bg3 Ne8 Bc7 Nd6
QB3b2/1BpRr2n/pnBpb3/3PP1r1/1R3nRq/4KR1B/1Nr2B2/k3b3 b - - 0 1 illegal: No proof kernel
6n1/1Nqb1qr1/QppNN3/1QPp1P1N/q1n1N3/3rk3/1b1rR2N/4B1RK b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 h5 Bh3 e5 dxe5 f5 gxf5 Rh6 Bg4 hxg4 Bd2 Rh7 Bc1 Rh8 Kf1 Ke7 Kg2 d5 h4 g5 c4 g3 a4 g4 e4 b6 f4 c6 c5 b3 f6+ Ke6 h5 b2 f5+ Kd7 h6 Kc7 e6 Rh7 f7 Qe7 e5 Bg7 f8N Qd7 e7 Ra5 e8N+ Kb7 e6 Nf6 e7 Qc7 Rh2 Bd7 Qf1 Ng8 Nc3 b1R Kh1 Rb3 Ne4 Rd3 Nf3 Ka6 Ne6 Bb2 N8f6 Rg7 e8N Rb5 a5 g2+ Kg1 Rbb3 h7 Kb5 h8N Kc4 a6 Ra3 a7 Ra2 N4d6+ Kc3 a8Q Kc2 Nb7 Kc3 Ng6 Kc4 Kf2 g1Q+ Ke2 g3 Bd2 g2 Ne4 Qh1 Ngf4 g1Q Be1 Qg6 Kf2 Qf7 Rg2 Qh8 Kg1 Qh4 Nh5 Qg4 Nh2 Qd1 N6g5 Kd4 Kh1 Qa4 Qa6 Ke3 Qb5 Rd2 Rg1 Ra3 Ra2 Rad3 N8d6 Be6 Qa6 Nd7 Qb5 Ne5 Qa6 Bd7 Ne6 Rd4 Qfb5 Nc4 Ra1 R2d3 Rc1 Rd2 Rc2 R2d3 Rf2 Rd2 Rfg2 R4d3 Re2+
br2RQ2/2Nn4/r1N1N3/2B1npq1/2Bpbq1q/2BP1P1p/N1r1B3/1k4NK b - - 0 2 legal: proof: h4 g5 a4 gxh4 b4 b5 axb5 Bh6 b6 Nf6 c3 Ng8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 d3 e5 Ra2 Bf8 Kd2 e4 Kc2 Bb4 cxb4 e3 Kc3 Nh6 Rd2 exd2 Kc2 Ng8 g4 Ke7 e4 Kf6 b7 Ke5 b6 Kd4 b5 d5 g5 f5 e5 a5 e6 c5 g6 h5 g7 h3 e7 c4 e8N a4 Ba3 c3 Qf3 d1R Be2 h4 Nc7 Ne7 g8B Nd7 b8N h2 b7 h3 b6 Ng6 Nba6 Nge5 b8N Qh4 Nc5 Ra6 b7 Rd2+ Kc1 c2 Nc3 Qf4 Na2 Qg5 Bb4 a3 Qh5 Qf4 Qe8 Qg5 Qf8 Qf4 Ba5 Qg5 Nb4 Kc3 N8c6 a2 b8B d4 Ba7 Bb7 Bc4 Ba8 N5e6 Qf4 Bc5 Qh4 Qf6 Rb8 Qf8 Qg5 Nf3 Qh4 Re1 h1B Ng1 Bd5 f3 Be4 Bd1 Rh2 Be2 Rg2 Bb5 Kb3 Kd2 Kb2 Bc4 a1Q Na2 Qb1 Rc1 Qg5+ Ke1 Ka1 Rd1 c1Q Kf1 Qcf4 Re1 Qfh4 Bab4 Qbc1 Bc3+ Kb1 Bd1 Rc2 Be2 Qh8 Kf2 Qd2 Kg3 Qh4+ Kh2 Qdf4+ Kh1 Qfg5 Rf1 Qgf4 Rf2 Qce3 Rg2 Qd2 Rg7 Qfg5 Re7 Qdf4 Re8
B3N3/r2rN3/bn2k3/3pbNNp/n3N1Pq/1r1P1q2/p1nRQ3/Q1K1B1N1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 f4 Kf7 c4 e5 g4 a5 f6 h5 d3 d6 Kd2 a4 b7 a3 c5 e4 f5 h3 b6 a2 c6 b3 c7 b2 Rh2 Qe7 Bg2 Qd7 Qe2 Ra4 Nc3 Na6 b8Q b1R b7 e3+ Kc2 Rbb4 Bd2 Qb5 Kc1 Ne7 Be1 Nd5 Ne4 Bg7 Qa7 Rh7 b8N Qb7 Nd7 Rb3 Qd4 Nb6 Qa1 Nc5 Bh1 Ke8 f7+ Ke7 f8N Ra7 Ne6 Nca4 N6g5 Be5 Ndf6 Rg7 Rf2 h2 Ne8 Qd5 Bg2 h1Q f6+ Kd7 f7 Qh4 Bf3 Ba6 f8N+ Ke7 Ng6+ Kd7 Qc2 e2 c8N Qf7 Bg2 Qf3 Nce7 Rh7 Nf5 Rf7 Ba5 e1N Qe2 Nc2 Be1 Rg7 Qd1 Rf7 Rd2 Rg7 Qe2 Re7 Nf7 Ke6 Bh1 Red7 Nge7 Qg2 Nf2 Qgh3 Ba8 d5 Ne4 Qf3 Nfg5+
NbN1nB2/1n1b1q2/3q1B2/2pp1BPQ/n1p4K/1r1Pk3/2BNRr1B/1N2r3 b - - 0 1 illegal: No possible last move
qr2RqN1/p1K5/1p1Q1Bn1/1R5R/PRNP2k1/1p2bn1r/R1r1NNn1/5b2 b - - 0 1 legal: proof: f4 c5 g4 h5 e4 d5 exd5 g5 b4 cxb4 Bh3 Nd7 fxg5 Nh6 g6 Ng8 g5 Nb8 Bg4 hxg4 Ke2 Kd7 Kd3 e5 Kc4 f5 Kb5 b3 c4 g3 h4 e4 a4 b6 h5 e3 d6 Ke6 g7 f4 c5 Kf5 g6 e2 h6 e1N h7 g2 d7 f3 c6 f2 c7 f1Q+ Ne2 g1R Ra2 Ne7 g8R Qf3 g7 Nd5 Nbc3 Bc5 Rh4 Nb4 Ne4 Qf6 d8R N4c6 Nf2 Ne7 Rb4 Rg2 Rde8 Ng6 Bb2 Qf8 Bf6 Nd7 d3 Bb7 c8N Nde5 Qd2 Rb8 d4 Bd6 Qh6 Qe4 Qh2 N5f3 Qg3 Bd5 Qh2 Be7 Qd6 Rh2 Ka6 Ng2 Kb5 Be6 Ka6 Qa8 Kb5 Rb7 Kc6 Rb8+ Kc7 Rh3 Bg5 Bc4 Bf6 Qf7 Rgf8 Qg8 Rf7 Qf8 g8N Bd3 Bg7+ Kg5 Rf5+ Kh4 Rfb5 Bg5 Bf6 Bc4 Nf4 Bf1 Ne2 Kh5 Qc6 Rh2 Nd6 Rh3 Nc4 Rh2 Nh1 Kg4 Qd6 Be3 Ne7 Rg8 h8R Rh3 Rhh5 Rh8 Ng8 Rh2 Rhd5 R8h3 Rh5 N2f4 Neg3 Rc2 Ne2 Ng2 Nf2+
1R1b1NKN/b1pR1p1P/7p/2P3b1/1rN1qn1R/Rr4B1/1Qnbb1k1/N2N4 b - - 0 1 illegal: No proof kernel
2n2B1K/4Q1N1/r2B2Bb/1pN1bn2/1PkN3R/5qp1/Pp2b1NB/1B1r2rb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 a4 Na3 Bf5 Rb1 Bc8 Rb3 axb3 Kf2 Ke7 Kf3 Kd6 Ke4 c5 h4 b5 d4 g5 h6 f3 h5 f6 h7 g4 h6 c4 Nh3 f2 Nf4 c3 Qe1 c2 Ng2 b2 Bf4+ Kd7 Kf5 c1B Kg6 f5 e4 Be7 Kg7 Qc7 d6 Ke6 d5+ Kd7 e5 Qc5 Bh2 f4 Nc2 g3 Nd4 f3 Bd3 f1B Bb1 f2 e6+ Ke8 Qe5 Nc6 d7+ Kd8 Qf6 Kc7 d8N Na7 Nb7 Qc6 Nc5 Bd6 e7 Be5 e8B Be2 Beg6 f1R d6+ Kb6 d7 Rd1 d8N Ne7 N8e6 Qf3 Bgd3 Rf8 h8B Bb7 h7 Nac8 Be4 Ra6 Bg6 Bb8 Qg5 Rf6 Qh4 Nf5+ Kg8 Bbf4 Bg7 Be5 h8B Bh6 Bf8 Rg1 Ng7 Rd6 Qe7 Ba8 Nde6 Kc6 Nd4+ Kd5 Nh5 Bef4 Be5 Kc4 Ng7 Rd5 Bb8 Be5 Kh8 Bb7 Bd6 Bc6 Nde6 Rdd1 Nd4 Qd3 Ne1 Rf1 Bg1 Be4 Rh4 Bh1 Bh2 Rg1 Ng2 Qa3 Be4 Qf3 Bb1
Q4R2/1nb1Kn2/r1N5/1bRppq2/kRr5/1R1nPnP1/1B1NR1p1/b2QR3 b - - 0 1 illegal: No possible last move
n4qB1/Ppb5/1Bb1n2R/K2Qr1nB/pP5r/1p1b4/nk4BN/RRRR4 b - - 0 1 illegal: No possible last move
8/2r1Qn2/1n2QbnR/p2n1q1Q/Pk2p1QB/1q1p1N2/2QKP2B/1r3RQb b - - 1 2 legal: proof: f4 c5 d4 g5 fxg5 b5 dxc5 b4 a3 Bg7 g3 Qa5 Bg2 Bf8 Bd5 Qd8 g4 h5 g6 b3 g5 Nh6 Nc3 Ng8 Na2 bxa2 Bf3 Na6 Bg4 hxg4 Be3 Nb8 Bd2 Qc7 Bc1 Qd8 b4 d5 h4 Kd7 c4 Kc6 g7 f5 a4 a5 g6 e5 h5 g3 h6 f4 h7 d4 Nf3 g2 Ba3 g1N Rh2 d3 Rh5 Qd5 Qc2 Bb7 Kd2 Nd7 Rh6 Nh3 Rf1 Ne7 g8Q a1N g7+ Ng6 Qf7 Rb8 g8Q Bg7 Qe7 Ng5 Bb2 Nf7 b5+ Kc7 c6 Kb6 c7 Bf6 Qg7 Rhc8 h8Q Ba8 Qhh7 Rb7 Bc3 Rcb8 c8Q Rc7 Qcg8 Bb7 Qe6+ Kc5 b6 Ba8 b7 Nb6 Bd4+ Kb4 c5 Qc4 c6 Qb3 Qb2 Nc2 Bf2 Ne3 Qc2 Ned5 Bh4 Rf8 b8B Bb7 Ne1 f3 Qhh8 f2 Nf3 Re8 Qhh7 Ree7 Qe8 Ba8 Qgg8 Rb7 c7 Rd7 c8Q Rdc7 Rb1 f1Q Q8e7+ Rc5 Re1 Qh3 Rf1 Qf5 Qee8 Rcc7 Qhh8 Nf8 Qg1 Ng6 Q8e7+ Rc5 Qcc7 Ne3 Rf2 Nbc4+ Kc1 Qc3 Nd4 Ka3 Rf1 Rb4 Rh7 Bh1 Qa7 Nd5 Qg4 e4 Bh2 Rc7 Nf3 Qb2+ Kd1 Qc3 Qd4 Ncb6 Qdg1 Qc4 Kd2 Qa2 Qed8 Rb1 Rh5 Qb3 Qde7+ Rc5 Qh6 Kb4 Qhg5 Re1 Rh6 Rb1 Qb7 Rc6 Q5h5 Rc5 Qbd7 Rc7 Qde7+
2k2N2/2Q3Bb/2Qpr2b/q2p1b1P/p1Q1R1Qq/Kn1r3n/Q2PNQb1/6R1 b - - 0 1 illegal: No possible last move, all moves rejected
1rN3Nn/1ppN4/p1P2B1R/NB5q/1bKB2nB/1PB1k3/1rrq4/1Qb2r2 b - - 1 2 illegal: No proof kernel
NQnNk2B/3nPp2/7R/4NR1n/2qb1N2/pr1bp3/1Nnr1P1K/1qR2R2 b - - 0 1 illegal: No proof kernel
3q1B1N/1q1kr3/rBN1bRpK/3qnB1B/N1pp1n2/2n4Q/BNPP1q2/8 b - - 0 1 legal: proof: g4 h5 a4 hxg4 b4 e5 e4 Ke7 f4 Ke6 f5+ Kd6 f6 b5 axb5 Rh7 Ra3 Rh3 Rf3 Be7 Rf4 exf4 e5+ Kd5 fxe7 d6 e8B Rh4 e6 Rh6 e7 Rh8 Kf2 Ke6 h4 c5 b6 f5 h5 a5 b7 g3+ Kf3 g6 h6 a4 h7 c4 b5 a3 b6 a2 Be2 a1Q Nc3 d5 Ba3 d4 Nh3 g2 Ba4 Qb2 e8B Ne7 Rf1 Nd7 b8N Nd5 b7 Ra6 Bf8 g1Q Qc1 Qgg5 Nf2 Qb4 Nd3 Ne5+ Kf2 f3 Nb2 f4 Nc6 Bd7 b8B Qb7 Bb3 Bc8 Bf7+ Kd7 Nca4 Nc3 Ba2 Rg8 h8N Rg7 Bg8 Re7 Bc7 Qf5 Bd5 Qf7 Be4 Qd5 Kg1 f2+ Kg2 f3+ Kg3 Ra8 Kf4 Ra6 Rh1 f1Q Kg5 f2 Bh5 Qg1+ Kh6 f1N Bb6 Ng3 Qf1 Qf2 Qg2 Nge2 Rf1 Nf4 Qh3+ Kd6 Bf5 Be6 Nb4 Kd7 Nc6 Qh2 Rf3 Qf2 Bd3 Nfe2 Rf6 Nf4 Bf5
k1B1K3/1rBN1n1p/b1QN3N/1N1BRBP1/p2n1b2/P1N1pq2/r1p5/4b1r1 b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 c5 bxc5 g5 hxg5 Bg7 Qg4 Bh6 Qd1 Bf8 c4 d5 a3 Qa5 c6 Bg4 c5 Qd8 Ra2 Bd7 Rc2 Bc8 Rc4 dxc4 Ke2 e5 Ke3 b5 d4 a5 f4 a4 g4 c3 d5 c2 g6 b4 f5 b3 c7 Kd7 g7 b2 g5 Ra7 d6 Kc6 f6 Kb7 f7 Bf5 c8N Nd7 c6+ Kb8 c7+ Ka8 Qd5+ Rb7 Nf3 Be6 Bd3 Nh6 g8B Bg4 Re1 Qf6 Nc3 b1R Nd4 Be7 f8N Be2 Ndb5 Ra1 Qc6 Nb8 d7 Bd6 d8N Ra2 Bd5 Nf7 Nd7 Re8 Bd2 Bf1 Re2 Re7 Be1 Qf5 Bg3 Re6 Re1 Rh6 Re2 Rh1 Bh2 Rg1 Re1 Bb4 Ncd6 Ba5 c8B Bc7 Be2 Qf6 Bg4 Bc4 Bf5 Bf1 Kf2 e3+ Kf3 e4+ Kf4 e2 Bg3 Na6 Kg4 Nc5 Kh5 Nb3 Bf4 Ne5 N8f7 Nd4 Nh6 Nf7 Bg3 Qg6+ Kg4 Qh5+ Kf4 Nd8 Ke5 Qf3 Kf6 Nf7 Ke7 e3 Rd1 e1B Ke8 Bd8 Bf4 Bf6 Bg3 Be5 Rb1 Bf4 Rb4 Ne2 Re4 Nd4 Re5 Be2 Na7 Ba6 Nab5 Qf2 Bh2 Qf3 Re4 Qf1 Nc4 Bd6 Bf4 Qf3 Re6 Bf8 Bc7 Bd6 Re7 Bh2 Ncd6 Bf4 Re5
2N1n1q1/1R1P4/r3Rr1p/N1Nnn2R/2Rp1NNQ/BK2bbbP/5kpp/8 b - - 0 1 illegal: No possible last move
1r1Rq1q1/3P1Rb1/N1N1pBN1/3rQR1N/n1p1np1R/b1P1N2k/b1p5/4K3 b - - 0 1 illegal: No proof kernel
b7/p1R1R3/R2nn1K1/PrQ1qNR1/p2p1k2/2B2Nb1/PQ3np1/Rq2r2R b - - 0 2 illegal: No proof kernel
1n1b2r1/1K4Qp/p3p1n1/N1p2N2/P1bN2PB/R1bNqNrq/3R1Q2/k6N b - - 0 1 legal: proof: e4 f5 h4 fxe4 b4 c5 bxc5 g5 hxg5 Kf7 c6 Ke8 c4 b6 c5 Bh6 c7 Bb7 c8N Kf7 c6 Ke8 c7 Ba6 Bb5 Bf8 Bc6 dxc6 f4 Kd7 Kf2 Ke6 Ke3 Kd5 g4 Kc4 a4 b5 d4 b4 f5 c5 g6 b3 f6 b2 d5 Qd6 f7 Qg3+ Nf3 Kb4 g7 Qh3 d6 Qf1 d7 Bb7 d8N a6 Ne6 Nh6 g8Q Bc6 Qe1+ Kb3 Na3 b1Q Qf2 Qb5 Ra2 Bb7 Qg7 Ng8 Nc4 Qa5 Rd2 Qa2 N8d6 Bd5 c8N Qa3 Nf4 Qc3+ Nd3 Ra7 Nf5 Rd7 Kf4 e3 Ng3 e2 Rh3 e1B N8d6 Rb7 Bb2 Ka2 Na5 Bc4 Ke4 Rb3 Ndf5 Qc1 Nh1 Qc3 Bc1+ Ka1 Qg6 Bg7 f8N Bf6 Ne6 Bh4 Ned4 e6 Qg7 Bd8 Ke5 Ne7 Kd6 Rg8 Rg3 Ng6 Rh3 Bh4 Kc7 Bd8+ Kc8 Bb5 Kb7 Bc4+ Nb4 Qe3 Rg3 Rc3 Nd3 Qg5 Rc2 Qh4 Bg5 Qh3 Bh4 Qc1 Rb2 Qe3 Rg2 Ra3 Rb3 Bc3 Qg3 Ra2 Rd2 Rb2 Qe1+ Rb1 Qg3 Rg1 Qf2 Rg3 Ra3+
1kB4q/Nnpn2r1/Q2qp3/B1bQ2p1/1B2rB1p/R1P1P3/RB1b1B1q/K7 b - - 0 2 legal: proof: h4 d5 g4 g5 a4 b5 axb5 d4 h5 f6 c3 d3 Na3 Bb7 Nc2 dxc2 Bh3 Be4 Bf1 Bg6 hxg6 f5 Rh4 fxg4 Rh3 Qc8 Rh1 Qd8 f4 Kd7 d4 Kc8 Kd2 a5 b4 h5 b6 e6 b5 a4 b7+ Kd7 f5 h4 g7 a3 f6 a2 f7 g3 d5 g2 b6 Qe7 d6 Rh7 Nf3 g1B Nd4 Ra4 Nb5 Rh5 Rh2 Ra8 Bb2 Ra7 Kc1 Qe8 Qd5 Ra3 Na7 Be7 f8B Nf6 g8Q Na6 b8B Ra4 b7 Kd8 d7 Bb4 Bd6 Rh6 Bf4 Nc5 Qf8 Rh8 Qfd6 Rg8 Qa6 Rg7 Rf2 Qh8 Bg2 Ke7 d8B+ Ke8 Be4 Nfd7 Be7 Ba3 Bf8 Kd8 Bd3 Re4 Rg2 Na4 Bb4 Bf2 Ba5 Be1 Bc4 Bd6 Bb5 Nac5 Bc6 Nb6 Bd7 Bf8 Bc8+ Nbd7 Nb5 Be7 Ba7 Bd6 b8B Nb7 Bf2 Bc5 Ba3 Bd2+ Kb2 Be7 e3 Bc5 Ba7 c1Q+ Kb3 Qg1 Kb2 Qh2 B5b4 Re5 Bb6 Re4 Na7 Qf8 Rag1 Qd6 B6a5 a1Q+ Kb3 Qb1+ Bb2 Qd3 Ka2 Qd4 Ra1 Qf6 Kb1 Qff8 Ra2 Qh8 Ka1 Rf7 Ra3 Nf8 Bd7 Rg7 Be1 Bc1 Rc2 Bd2 Bc1 Ng6 Rca2 Ne5 Nb5 Qc6 Bf2 Qd6 Bc6 Kc8 Na7+ Kb8 Bd7 Nc4 Bc8 Ne5 Bb2 Nd7 Qf1 Re5 Qb5 Re4 Qa6
1KB5/1prp1n1N/3PNn2/2nB1rp1/1PR1Qp2/1kNbqB2/5N1b/3N2Bq b - - 1 2 illegal: No proof kernel forced: wxLB
1NR2N1K/1Bn2b2/1qB3pk/Pp1Brp1N/Bn1bNqq1/2B5/p5P1/Q4r2 b - - 0 1 illegal: No proof kernel
5R2/p1pB2B1/n1Pq4/2qbR1r1/2Bk2R1/PK2R1pq/Bp3Q1R/r1Nrb3 b - - 0 1 illegal: No possible last move, all moves rejected
r1B2B2/bp1NK2Q/2RpQ1p1/1P3rp1/3r2N1/q2P3q/1rQ3nn/3QQQ1k b - - 0 1 illegal: No possible last move, all moves rejected
1nQ2N2/N3B3/1Rp1B1nr/B1pr4/B1Kbpq2/N1pnP1p1/2N1PN2/3k1b2 b - - 0 1 illegal: No proof kernel
1NBN1r2/1pN2p2/1K3brr/5PRR/3Qpnp1/p3qNnQ/1k4Pb/5N1N b - - 1 2 illegal: No proof kernel
1B3BR1/1rpN1Q2/1N2Bp2/KNr3p1/Pp1k4/4nPp1/4n1Br/bb1N1B1q b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 hxg4 bxa5 Rh3 Bb2 Rh4 Bc1 Rh8 a4 e5 d4 Ra6 d6 Rh5 d5 Ra8 Ra3 Rh7 Rd3 Rh8 Rd4 exd4 Kd2 Kd7 h4 g5 e4 b5 a6 g3 a7 d3 Kc3 f6 Kb4 d2 e5 Rh6 e6+ Ke8 e7 Kf7 e8B+ Kg7 h5 Qe7 Nc3 Be6 Ka5 b4 d7 Rh7 d8N Bg4 h6+ Kh8 d6 Bc8 d7 Qe4 Ne6 Qb1 d8N Ne7 Nh3 Na6 Bd7 Rb8 a8B Kg8 Nc5 Nd5 Qh5 d1R Nde6 Rh8 Nhf4 Ne3 Nfd5 Bd6 Nb6 Rd5 Nd1 Rb7 Nd4 Be5 Nb5 Nb8 h7+ Kg7 Bf5 Ba1 Ncd7 Rc5 Be6 Qe4 Rh3 Qc6 Qe8 Qh1 Qe7+ Kg6 Qf8 Rg8 h8B Rg7 Rh5 Rh7 Bg7 Rh6 Qe7 Rh8 Bf8 Nc6+ Ka6 Nd4 Ka5 Ne2 Rh2 Rb8 Bag2 Rb7 f3 Rh5 Bb2 Rh3 Bd4 Rh4 Bb3 Kf5 Qf7 Rh8 Rh4 Rh6 Re4 Rh2 Re8 Kf4 Ne5 Bf5 Ned7 Bb1 Be6 Rc1 Nc8 Rc6 Ba7 Rc5 Bb8 Rc1 Nc5 Ke5 Nb6 Rc3 Bg7 Rc1 Rg8 Rc3 Bf8 Rc1 Nd6 Kd4 Ncd7 Rc5+ Nb5+
q2qNq2/3rp2q/kN1N1r2/NP2b3/bR1nBq1B/N5nK/N3P1NR/4b3 b - - 0 1 illegal: No possible last move, all moves rejected
qR1Kb1n1/3R3R/1P5P/1B1R1brk/1nRR1B1r/1rrN4/qB1N4/b1b5 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 gxf4 g4 h6 g5 h5 Qg4 hxg4 Kf2 Kf7 h4 c5 d4 a5 b4 e5 d6 e4 h5 f3 Ke3 a4 Kf4 e3 Ke5 f2 d7 c4 f6 c3 d5 g3 b6 e2 b5 e1B b7 c2 d6 g2 b6 a3 Nd2 a2 Nh3 g1Q Bb2 c1R Bb5 f1B Nf4 Be2 Nd3 Rc6 Rc1 a1R Rc4 Na6 b8R Bg7 h6 Kg6 Ke6 Ra4 f7 Bh5 f8B Qf2 Rhh4 Nb4 Rhd4 Ra3 Be7 Rb3 Bf6 Ra6 Be5 Ra4 Bf4 Rh7 Rb7 Bf6 Rc7 Rg7 Ra7 Be2 Rb7 Kh5 g6 Rc5 Rb8 Bf3 Rb7 Bc6 Ra7 Rg5 Rc7 Rf7 g7 Rf8 Rb7 Re8+ Kf7 Re3 Re4 Qg1 Rc3 Ra1 Nf1 Re2 Bbc1 Qg2 Rcc4 Ne7 g8R Rc2 Rf8 Bfc3 Red4 Bed2 Rh8 Bb2 Rh7 Rcc3 Rc7 Qh8 d8R Bf5 d7 Ra2 Re8 Ba1 d8R Bcd7 Ba3 Bc1 Rg8 Bc6 R8d5 Qb2 Rgc8 Qd8 Kf6 Be8 Rcd7 Qb1 Ra8 Rh2 Bb2 Rh4 Nd2 Qa2 Rac8 Bfg6 Ke6 Ng8 Ra8 Qc8 Kd6 Qca6 Kc7 Bf5 Rb8 Qa8 Kd8
Nq1b2NN/3Nb3/1n1n1RB1/n1b1BB2/2rP4/kN1P1K2/bR1q3q/5n1N b - - 0 1 legal: proof: g4 d5 f4 b5 a4 e5 axb5 exf4 c3 d4 cxd4 f3 Nc3 f6 Nb1 f5 Kf2 a5 Qa4 f4 Qc2 h5 Qf5 Ra6 Ke1 Rf6 Qg5 Rf5 gxf5 Be7 Qg2 Bf8 Qg4 hxg4 Kf2 Kd7 b4 Kd6 h4 c5 b6 g5 b5 a4 f6 g3+ Ke1 g2 Kf2 g4 h5 c4 h6 c3 f7 c2 b7 a3 h7 a2 b6 Nf6 Bb2 c1B Rh6 Be7 f8N Be6 Nh3 Nbd7 b8N Ne8 b7 Nb6 Nc6 Qb8 Nd7 Rf8 h8N g1Q+ Ke1 g3 Nf2 g2 Nh1 Qh2 Kf2 Kd5 Rf6 Kc4 e3+ Kb3 Bd3 Nd6 Bf5 Bd8 Ne7 Bc4 Bc3 Ba3 Ng8 Re8 Bb2 Re5 Bc3 Rc5 Bb2 Be6 Bc3 Rc4 Bb2 Qc8 b8N Bf7 Na6 Qb8 Nc7 g1B+ Ke1 f2+ Ke2 f1N+ Kf3 Bf2 Na8 Bc5 e4 Bg3 d3 Bh4 Nd2+ Kb4 Rd1 a1N e5 Nb3 e6 Na5 e7 Bg5 Bc3+ Ka3 e8B Be6 Nb3 Bf7 Rh6 Bge7 Be1 Be6 Rd2 Bd5+ Kg4 f3 Bg3 f2 Rb2 Rc2 Ngf6 Nd2 Be5 f1Q Nc1 Qe1 Ng8 Ba2 Rf6 Nf1 Beg6 Rc4 Nb3 Qed2 Kf3
5NK1/b4r2/1n1p1q2/PRb5/RN1n1R1R/R2bkB2/B1b3Pn/n2R1rN1 b - - 0 1 legal: proof: e4 e5 b4 c5 h4 a5 bxa5 g5 hxg5 f6 d4 Nc6 dxc5 Nb8 Qd4 Na6 Bf4 exd4 e5 Nb8 e6 Bg7 Bg3 Bf8 Be5 fxe5 Kd2 Ke7 Kd3 b5 Ke4 h5 Kf5 e4 Kg6 e3 f4 h4 c4 b4 a4 d3 f5 d2 a6 d1N a5 h3 c6 Kd6 Kf7 Kc5 e7 Kd4 e8R b3 c5 h2 c7 e2 f6 e1B g6 b2 c6 Rh7+ g7 Ne3 a7 Ne7 Ra3 Nc2 Nc3 b1B Na2 Na1 Be2 Ba6 c8R Bad3 c7 Nec6 Bf3 Bbc2 Re5 Bf2 Rb5 Bc5 Nb4 d6 Ra4 Qe7+ Kg8 Nd7 f7 Nb6 Rf8 Ke3 c8R Nd4 Ra3 Rb8 a8R Qf6 Rc7 Rb7 Rab8 Rh4 Rd7 Rf4 Rbe8+ Kd2 Re4 Rf5 Rh4 Ke3 Rb8 Rf4 f8N Rc7 Rf7 Rb7 Ne2 Rf5 Rb1 h1N Ng1 Ng3 Rd1 Nf1 Rc8 Nh2 Rc6 Na8 Ra4 Ba7 Rc3 Bc5 Rca3 Nb6 Kh7 Rc7 g8B Rb7 Rg7 Rc7 Ba2 Rf7 Kg8 Rf4 Bb7 Rf3 Rgg4 Rf5 Ne2 Rf3 Rf4 Bg1 Be4 Rf1 Bf3 Nc6 Nd4 Nc4 Bb3 Ba7 Nh7 Nb6 Ba2 Bf2 Rb1 Kd2 Ne2 Bc5 Nf8 Ke3 Rd1 Nd4 Ng1
rr1NRb2/4N1NK/2nn4/B1N3N1/Rrn1n1P1/P7/N3Bp2/nk1bR1r1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 e5 b4 axb4 f4 g5 fxe5 Ra6 h4 Ra8 Qb3 Ra6 Qg3 Ra8 Qf4 gxf4 Na3 Bd6 Nb1 Qg5 hxg5 Bf8 Kf2 Ke7 Kf3 h5 Ke4 b5 d4 f5+ Kd3 c5 e4 c4+ Kc2 h4 e6 Kd6 e7 b3+ Kc3 h3 e8R h2 a3 b4+ Kd2 b2 g6 c3+ Kd3 c2 g7 b3 Rd8+ Bd7 Nc3 b1N Bd2 b2 Na2 f3 Nh3 f2 Ng5 f4 Re8 f3 Be2 f1R Ba5 Nd2 Rc1 Nh6 g8N b1R Ne7 f2 Rd1 Ba4 e5+ Kd7 e6+ Kd6 Rg1 Nc4 Ke4 Nf7 Kf5 h1N Kg6 c1N Rd2 Rd1 Re1 Rb4 Rc2 Rg8+ Kh7 Nb3 Rc3 Ng3 Re3 Rb6 Re4 Na1 Rf4 Nc6 Re4 Kc7 d6+ Kb7 d7 Ka6 d8N Kb5 d5 Nd6 Rf4 Nge4 Nb7 Rb1 Nc5 Bd1 Nf5 Rbb8 e7 Rg6 Rd8 Re6 e8N Rb4 Neg7 Re5 Re8 Re6 Na6 Ka4 Ne7 Kb3 Nc5+ Kb2 Rf7 Kb1 Rf4 Nf7 d6 Re5 d7 Nfd6 d8N Rd5 Na4 Rd3 Nc5 Rg3 Rf5 Rg1 Rd5 Nc8 Rd7 N8d6 Rb7 Rb2 Rb4 Rb3 Ra4 Rb2 Ngf7 R2b4 Ng5
R1b3R1/3R4/Nr2B1Kp/3Rk3/1PpqBr1P/4NB2/2br2RR/qn1r3n b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Ba3 d4 Bf8 d6 Nd7 d5 Nb8 Qd2 Nd7 Qd4 Nb8 f4 exd4 e4 g5 e5 Be7 e6 Bf6 Bd2 Be5 fxe5 Nd7 Bc1 Nb8 Bf4 gxf4 Ke2 c5 Kf3 a5 Kg4 f5+ Kh5 h6 h4 c4 b4 a4 g4 a3 g5 d3 b6 a2 d7+ Ke7 g6 f3 d6+ Kf8 b7 Kg7 e7 f4 e8B f2 e6 Kf6 g7 d2 e7 d1Q+ Ne2 f3 Na3 Qc2 Rh2 Qb1 Nf4 Ra6 Ng2 Rb6 Bd3 f1B Ne3 f2 Be4 Bd3 Nb5 f1R Bf7 Nc6 b8R Ke5 e8B Nge7 g8R Bc2 Rgg2 Nd4 Be6 Rf4 Nc7 Ne2 Na6 Nf5 Kg6 Nfg3 Ra8 Qb2 Rd1 a1R B8f7 Qc3 Bd5 Rc1 Bfe6 Qa1 Bb7 Rh7 Rd4 Qh8 d8R Nh1 d7 Nc3 Rg8 Rd1 d8R Nb1 R8d7 Rhf7 Bd5 Rf2 Bb7 Rfd2 R4d6 Qf6+ Kh5 Qf4 Kg6 Rf5 Bf3 Qfd4 Bbe4 Rf4 Rd5+
nR4q1/2NkBp2/B1b2N2/1N2K1NN/4pBr1/PN1R2qn/2P2q1p/1r5r b - - 0 1 legal: proof: f4 d5 h4 c5 e4 g5 hxg5 e5 b3 a5 Qg4 a4 Qh4 Bg7 exd5 axb3 Qh6 e4 Qb6 Bd4 Qb4 Be5 fxe5 cxb4 Ke2 b5 Ke3 h5 Kd4 h4 g4 h3 e6 h2 e7 b2 g6 b3 g7 b4 a3 Ba6 g5 Bb5 d6 Ra5 g6 Rh7 Nf3 Ba6 Nc3 b1Q Ng5 b2 Nb5 b3 Ke5 Ra4 d4 Nf6 g8N Rh4 g7 Rb4 d5 Bc8 Bf4 Qa2 Rd1 b1R Rd3 Kd7 e8N b2 Ne7 Na6 g8N Qb3 Nec7 Rc1 Be2 Ra1 Rb1 Rg4 Bf1 Qe8 Be2 Nh5 Nf6+ Kd8 d7 Bb7 Bf1 Qg8 Be2 Bc6 Bf1 Ng3 Nh5 Ne2 Nf5 Qa2 Nfd4 Ng1 Nb3 Nh3 Be2 Ke7 d8B+ Kd7 d6 Rg2 N5d4 Rg4 Nd5 Nc7 Be7 Rb8 Nb5 Na8 Nd2 Qc4 Nb3 Qc5 Bf1 Qf2 Be2 Kc8 d7+ Kb7 d8N+ Kc8 Ng7 Kd7 Nde6 Qg3 Nec7 Rb7 Rh1 b1Q Nh5 Qbe1 Rg1 Qef2 Rb1 Rb8 Nd6 Rf8 Nd4 Qh4 Rg3 Ng1 Ba6 Rb8 Rd3 Nh3 Rb6 Rh1 Rb4 Rb5 Rb1 Rc5 Rb8 Rc3 N6b5 Rb3 Ne8 Rb2 Nec7 Qhg3 Nb3 Rbb1 Ndf6+
B1N5/3R1pNB/N5r1/1NnNqP1p/2K3pb/1N3P1b/3b2Rn/bR2n1k1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 f4 a5 a4 Ra6 axb5 Re6 Ra4 Re3 Ra1 Rf3 exf3 Be6 Bg2 Bd7 Bf1 Bc8 h4 Kd7 d3 Ba6 g5 Nf6 g6 Rg8 Bd2 Nc6 Bc3 Ke8 Qc2 Nd4 Qg2 Rh8 Qg4 hxg4 h5 Nc6 h6 Ng8 h7 Nb8 Bf6 Bb7 Bg5 Bc8 Bh6 gxh6 Kd2 Kd7 Kc3 Kd6 b4 e5 b6 c5 g7 c4 b5 Kc5 d4+ Kd6 f5 h5 b7 e4 b6 a4 Ra2 a3 Ne2 e3 Nd2 Qe7 Nb3 Nd7 b8N Nh6 b7 Ng8 Nc6 Qe6 b8N Ne7 Na7 Qe5 Nf4 Rg8 h8N e2 Nhg6 Nc5 Rc2 Bd7 Na6 a2 Rb2 a1B Rh2 e1N Bd3 Ng2 Be4 Bb5 Kb4 c3 Rb1 Bf1 Nb5+ Kd7 d6 c2 d5 Ne1 Re2 c1B Kc4 Bh3 Rf2 Bd2 Rg2 Rh8 g8B Rh6 Bh7 Bg7 Ne6 Bf6 Ngf4 Bh4 Ng7 Rf6 Na7 Rg6 Nc8 Rf6 Nfe6 Rg6 Nec7 Nc6 Nb5 Nd4 Ne6 Ne2 Nf4 Ke8 d7+ Kf8 d8R+ Kg7 d6 Kh6 d7 Kg5 Nd5 Ng3 Nf6 Nf1 Ba8 Nh2 Nd5 Bg3 Rf8 Kh4 d8N Bf2 Ne6 Bg3 Re2 Bf2 Rg8 Kg3 Ng7 Kg2 Rd8 Kg1 Rd7 Bh4 Rg2+
1b2k1qr/1N5N/1rN5/pn2r1BB/B1BRprn1/PrR1P3/B3nb2/2B2K2 b - - 0 2 illegal: No possible last move
B2bNn1k/rbpq4/1R3R1N/3NK2R/3B1n1q/2P4p/nRr2R1P/1bb2R2 b - - 0 2 legal: proof: e4 b5 a4 g5 axb5 f6 d4 f5 f4 e6 Qf3 e5 dxe5 fxe4 f5 Ba3 Qg4 Bf8 Qf4 gxf4 Kf2 Kf7 b4 Kg7 g4 a5 b6 h5 g5 d5 b7 h4 b5 a4 g6 e3+ Kf3 d4 Ke4 a3 e6 h3 e7 a2 b6 d3 Be2 f3 Bb2+ Nf6+ Ke5 f2 Nf3 f1B Nd4 d2 Nc3 d1N Nd5 Rg8 e8N+ Kh8 Bf3 Bd3 Rf1 e2 Rf2 Nc3 Raf1 Nh5 f6 a1B f7 Na2 Nf5 Nf4 Bd4 Ra7 c3 Be7 f8R Bb1 Rf6 Qd7 Nh6 Bd8 Bg2 Bb2 g7+ Kh7 Bh1 Bc1 Bf3 Rf8 g8R Rf7 Rgg6 Kh8 Rg5 e1Q+ Be4 Rg7 Rgf5 Rg2 Rh5 Na6 b8R Nc5 b7 Nce6 Ra8 Nf8 b8R Ba6 Rbb6 Bb7 Rfb2 Qg3 Rb8 Qgg4 Rbf2 Qh4 Rbb2 Bc6 R8b6 Bb7 Rf3 Rc2 R3f2 Bc8 Ne7 Ba6 Ba8 Bb7 Nd5
Rb6/n2b1K1n/2B1npNN/6bP/rNBn1P1p/2B1RB2/r3q1Bk/5Bq1 b - - 0 1 illegal: No proof kernel
1R1R3B/2N5/n1n3p1/pBBn1BK1/1Nn1B1bN/r6b/Pr1kbB1P/6bq b - - 0 1 legal: proof: f4 c5 g4 d5 e4 g6 exd5 c4 g5 c3 bxc3 Bg4 c4 Bc8 f5 Nf6 c5 Ng8 Qh5 gxf5 g6 f4 g7 Qb6 Qh6 Qd8 Qg6 hxg6 Kf2 Kd7 Kf3 e5 Kg4 b5 d4 f3 c4 b4 d6 Kc6+ d7 b3 Bh6 b2 Be3 e4 Bf2 e3 Nc3 b1N Nb5 e2 Nc7 Nf6+ Kg5 e1N g8B Nd2 Rb1 Na6 Rb8 Nc2 Be2 Qe7 d8B Qe4 Be7 Ncb4 Bf1 Bg4 d5+ Kd7 d6 Kc6 d7 Nfd5 d8B f5 Be6 f4 Bf5 Bg7 Bf8 Bd4 Bf6 Rh3 Rd8 Rb8 Bh8 Qb1 Be4 Qd1 Bh4 f2 Nf3 Qb1 Bfd3 f1B Bf2 Be2 Nh4 f3 Rg1 Qa1 Rb1 Rb5 Rb3 Qh1 Rb2 Nc2 Rb1 Rb2 Be7 Ncb4 Bd6 Kb7 c6+ Kb6 c5+ Ka5 Bb5 Rg3 Ne8 Rh3 c7 Nc4 c8N Nc6 Nc7 Kb4 Nb6 Kc3 Be7 Kd2 Bf8 Nf4 Nbd5 Rg3 Nb4 Nd5 Bg1 f2 Bd6 f1B Bf2 Ncb8 c6 Bfh3 Bc5 Rc3 Ne6 Rd3 c7 Nc6 c8B Rc3 Nc7 Ra3 Bg3 Bg1 Bcf5 Nab8 Bgf2 a5 Ba7 Na6 Bac5 Rc2 Rb3 Rb2 Nd3 Nf6 Ba4 Nh5 Rbb8 Nf4 Nb4+ Nd5 Bb5
3r4/1N1r1B1n/R2bp2p/B1B1q2p/1KNRPn2/Nn5N/1P2b2N/1b3Nkn b - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 f5 a4 f4 axb5 g6 h4 Nf6 h5 gxh5 Qd4 Ng8 Qe3 fxe3 f4 Kf7 g4 Kf6 c4 a5 g5+ Kg6 c6 d5 f5+ Kf7 b6 h6 b7 a4 f6 Kg6 c7 d4 f7 e2 Kd2 e1N c5 a3 c6 a2 Bc4 d3 Kc3 d2 Kb4 d1B Nd2 Ra7 Nh3 Nf6 Nf1 Qd7 Bd2 Qe6 Rh2 Bd7 c8N Be2 c7 Ba4 Nb6 Bc2 c8N Bb1 Nd6 Nbd7 b8N Qe5 Nb5 Nc5 Na6 Nh7 Na3 Ne6 Nc5 Rd7 Nb7 Nf4 Rg2 Rg8 Rg3 Rh8 Rd3 Rg8 Rd4 Ned3+ Kc3 Nf2 Kb4 Nh1 Bc3 Kg7 g6 Kf6 g7 Rh8 g8N+ Kg6 Ng1 Kg5 Nf6 Kh4 Ng4 Rg8 Nh3 Rh8 Nfe3 Kg3 Nf1+ Kg2 Ngh2 Rg8 Be6 Rh8 Nbc4 Rg8 Bf5 Rh8 Bg6 e6+ Kb3 Be7 Ba5 Rhd8 f8B Bc5 Bf7 Bd6 Ng5 Kg1 Kc3 Bb8 Bc5 Bd6 Kb4 Bbd3 Rc1 a1N Rc3 Bb1 Nh3+ Kg2 Rc2 Nb3 Rcd2 Bf8 Rd6 Be7 Ra6 Bd6 Nf2 Kg1 Rd1 Re8 Rd4 Red8 Nh3+
bn1bB3/2Bq2NN/3RpR2/q1pBkb2/1pbr4/N1P3B1/2B1P3/BK4bn b - - 0 1 legal: proof: d4 b5 b4 a5 g4 axb4 d5 c5 Qd2 h5 Qg5 f5 gxf5 Ra6 Qg4 Rc6 dxc6 hxg4 Kd2 Kf7 f4 Kf6 a4 d5 h4 g5 c7 g3 h5 g2 h6 e6 h7 b3 a5 g4 a6 g3 a7 d4 a8B b2 Rh6+ Kg7 f6+ Kf7 f5 d3 Bd5 b4 Nf3 g1B Bg2 Bf2 Nd4 Bd6 Na3 b1B Bge4 Bb7 c8B g2 Bd7 g1Q Be8+ Kf8 f7 Kg7 f8N Nf6 c3 Bc7 Bb2 Ng4 Rf6 Qd7 Ra2 Qf1 Ba1 Bd8 Rc2 Qg2 Kc1 Ba8 Rd2 Bg1 Rd1 d2+ Kb2 Ba2 Bc2 Bc4 Kb1 Rg8 Bc6 Nf2 Bd5 Qg6 h8B+ Kh6 Ba4 Kg5 Nh7+ Kf4 Bc2 Nh1 Bg7 Qgf7 Bh6+ Kg4 Bf4 Qc7 Bg3 Qfd7 Rf7 Rf8 f6 Qa5 Nf5 Rh8 Ng7 Rg8 Rf1 d1B Re7 Rh8 f7 Rg8 f8B Rh8 Bf2 Kf4 Bh4+ Ke5 Rf6 Qdb5 Ra7 Qd7 Ra6 Rg8 Rd6 Rh8 Nh5 Rg8 Be7 Rg4 Ng7 Rd4 Bf2 Bc7 Bd8 Bb6 Bcg6 Ba4 Bc7 Bc2+ Kc1 Bf5 Bh4 Bh3 Bc2 Bf5 Kb1 Na6 Bb8 Bd8 Bc7 Nb8 Bg3+
5rnK/2R2B1N/BPpqp3/1rr1P1N1/b2p1R2/1n5B/pbk1N1B1/B1B2b2 b - - 0 1 illegal: No proof kernel
q7/P2RnR1r/1N6/6pp/NrBRpqR1/Rp1pBb1P/2k1NK1R/n1b5 b - - 0 1 legal: proof: e4 a5 d4 d5 g4 f5 gxf5 c5 b4 axb4 exd5 Ra7 d6 Ra5 d5 Ra8 Qd4 cxd4 c4 Kf7 f4 Kf6 a4 e5 d7 h5 c5 g5 a5 b5 c6 b3 c7 b2 d6 b4 h3 e4 a6 b3 a7 Qe8 d8R Na6 d7 Qe5 Nc3 b1Q Bc4 d3 Kf2 Qe8 Rh2 Bd6 Ra3 Nb4 Nge2 Nc2 Na4 Rh7 Bd2 Rb8 Bc1 Bb7 c8N Na1 Bd2 Ba6 Bc1 Rb4 Ncb6 Ne7 Bd2 Kg7 f6+ Kg6 f7 Kf5 Bc1 Bc8 Bd2 Qb2 f8R+ Qf6 Bc1 Qff7 Bd2 Kf6 f5 Bf4 Bc1 Ke5 f6 Qg6 f7 Qf6 Rh8 Qg8 f8R Qd5 Rhg8 Qa8 Rg7 Qd6 Rf6 Bd2 Rf4 Qf6 Nec3 Kd4 Rf7 Qf5 Rh8 Qe5 d8R+ Qd6 Rhg8 Bg4 Rg6 Bf3 Rg4 Bf4 Rd7 Be3+ Kf1 Bd2 Ne2+ Ke3 Rgf6 Qg3 Rfd6 Qf4 Bb2 Bc1 Bd4+ Kd2 Be3+ Kd1 Kf2 Kc2 Rd4
K2n3n/B1P2k2/1N2RRR1/2q1rBpQ/2B1P1n1/b3n2R/np6/3nB2Q b - - 0 1 illegal: No possible last move
1R4nQ/8/bP1kqp1n/1Q3PQp/1nN1p2K/2N4B/N2Bb1bq/NQ6 b - - 0 1 legal: proof: c4 b5 a4 c5 d4 Qc7 axb5 Nh6 b4 cxb4 c5 Qd8 c6 Ng8 b6 d5 Bb2 a5 Ba3 Ra7 Bc1 Rd7 Bh6 Rd6 Bf4 Re6 Bc1 Re3 Nd2 Rc3 Nb1 Rc5 dxc5 Ba6 Qd3 Bb7 Qd1 Bc8 f4 h5 h4 g5 e4 d4 g4 Na6 f5 Rh7 Ra3 Rh6 Rf3 Rf6 Rf4 gxf4 g5 Rd6 g6 Rd5 exd5 Nb8 Kd2 Bh6 Ke1 Bg5 hxg5 Qd6 Bb5 Qd7 Bf1 Qd8 Kf2 e5 c7 Ke7 c6 b3 g7 e4 d6+ Ke8 d7+ Ke7 g6 f6 Nd2 f3 Kg3 f2 Bh3 f1B Ne2 b2 Nb3 b1Q Bd2 d3 Rg1 a4 Nc3 a3 Na1 a2 Kh4 Qb2 Qb1 Nh6 g8Q Qc1 g7 Kd6 Qe8 Qe7 d8N Ba6 g8Q Qc2 c8Q Qe6 c7 Bg2 Qeb5 Nc6 Qg5 Ne7 Nc6 Neg8 Nb4 Qb2 Ne2 Qbe5 Nc3 Qh2 Qb8 Ne7 Qh8 Neg8 Nb3 a1N Nba2 Nc2 Na1 Nb4 Rd1 Qd5 c8N+ Ke5 Ne7 Kd6 Ng6 Qb3 Ne5 Qe6 Bf4 d2 Nc4+ Ke7 Rg1 d1B Be3 Bg4 Rd1 Be2 Rd8 Bh1 Rb8 Bg2 Qa5 Kd7 Bd2 Kc6 Qe5 Kd7 Qb5+ Ke7 Nb2 Kd6 Nc4+
n7/1Q3N2/1BQPN2p/1B2k2b/1P1Rnb1q/Q3p1Q1/2b1p2p/B2B2nK b - - 0 1 legal: proof: d4 d5 g4 a5 e4 c5 dxc5 b5 b4 g5 c4 f5 a4 fxe4 axb5 d4 h4 Nf6 h5 Nc6 h6 Ng8 Rh4 gxh4 g5 Nb8 g6 Ra6 Bg5 Rd6 Bc1 Rd5 cxd5 Nf6 Qh5 Rg8 Qd1 Rg7 hxg7 Nc6 Ra3 Ng8 Rh3 Nb8 Rh2 Bb7 Rh1 Bc8 f4 Kd7 Kf2 e5 Kg2 d3 c6+ Kd6 f5 h6 f6 a4 c7 e3 f7 e2 b6 a3 b7 e4 Be3 a2 Qc1 a1N Qa3 Nc6 b8Q Qd7 Qb7 Nd8 Nf3 Nf6 g8B Qe6 g7 Qe7 Bb6 Bg4 c8Q Nc2 Nd4 Ne6 Nd2 Nc7 N2f3 Bh5 Ng5 Ke5 Nde6 Na8 Qcc6 h3+ Kh2 Ne1 d6 Qd8 Rg1 Nf3+ Kh1 h2 Rg4 Be7 f8B Ng1 Bh7 Qc8 g8Q Qd8 Bg7 d2 Bg2 e3 Rd4 d1B Bc2 Nh3 Ba4 Bc2 Bf3 Ng1 Nf7+ Kf5 Bh8 Ne4 Qg3 Bg5 Bg2 Bf4 Bb5 Nf6 Bd5 Ne4 Bb3 Qh4 Bf6 Bd3 Bd1 Bc2 Rc4 Qg4 Ba1 Qh4 Rd4 Kf6 Nfd8 Ke5 Nf7+
1N3b1Q/2Q2QN1/KNnB3b/N3q2b/1rnrP1b1/1k2q1P1/R5qB/5b1Q b - - 0 1 legal: proof: b4 d5 f4 h5 c4 b5 cxd5 g5 a4 e5 axb5 h4 fxe5 h3 g3 Qd6 Bg2 hxg2 Ra6 Qe7 Rf6 Qd8 Rf4 gxf4 e4 Kd7 Ke2 c5 Kd3 a5 Kc4 f5 d4 a4 h4 a3 d6 Ke6 d5+ Kf7 b6 a2 Kb5 a1Q b7 c4 d7 f3 e6+ Kf6 h5 Ke5 d6 f4 h6 c3 e7 c2 e8Q+ Be7 h7 f2 Qf7 f1B+ Ne2 g1Q Na3 f3 Be3 c1B Rh2 Nc6 b8B Qg2 Bg1 f2 Qe1 Qe8 d8Q Nh6 Qc7 Nf5 d7+ Nd6+ Kb6 Bd2 d8N Qc3 b5 Bf8 Nf4 Kd4 Nc4 Bg4 Nb7 Bfe2 Nh5 Ra4 Ng7 Rb4 Ka6 Bh6 b6 Qe5 Qb1 Rg8 h8Q Qe3 Qd1+ Kc3 Qf1 Qgf3 Rg2 Kb3 Bh2 Bd1 Qh1 f1B Ra2 Qfe2 Nd8 Qg2 b7 Rb5 Nb6+ Nc4 Qcd7 Rd5 Bd6 Rd4 b8N Bh5 Qc7 Bdg4 Ne8 Rg5 Nb7 Rf5 Ng7 Rf2 Qd8 Rb2 Qc8 Kc3 Qcd7 Rb4 Qc7 Kb3 Na5+
1nnn3b/1q3RN1/Q1rnQN2/Q2r1B2/2P1P3/1k2R1qb/b3Rn2/K1R4Q b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 f5 gxf5 c5 a4 h6 d4 cxd4 Bg5 hxg5 axb5 Ba6 Ra2 Bb7 Ra1 Bc8 Kd2 Kf7 Kc1 d5 h4 a5 b4 g4 Kb2 g5 e3 d3 c3 d4 f6 Ke6 f7 Kd5 e4+ Kc4 b6 g3 b5 a4 b7 g4 h5 g2 b6 a3+ Ka2 g3 h6 Ra5 h7 Qe7 e6 Rd5 Qe2 Bg7 Nh3 g1N f8R g2 Nf2 Nf3 Ng4 g1Q Bh3 Qg3 Re1 Nh4 Nf6 Nf5 Rf7 Nd6 Bf5 Qd7 Qh5 d2 e7 d1B e8Q d3 Qe6 d2 Re3 Ne7 Qh6 Re8 h8Q Qc7 Q8h7 Bh8 Q7g6 Bg4 Qh1 d1N Qg5 Bh3 Nd2+ Kc5 Nc4 Nf2 Kb1 a2+ Kb2 Rd8 Rc1 a1N Qh5 Nc2 Qg6 Ne1 Ka1 Ng2 Qh5 Nf4 Qg5 Nd7 b8Q Qb7 Qa8 Nb8 Qa6 Rd7 Qh5 Rc7 Qg5 Rc6 Qh5 Nb5 Nd6 Bd7 Nde8 Kc4 Ng7 Kb3 Qg5 Nd6 Qh5 Qa7 b7 Nec8 Qa5 Qa6 Qe2 Qa8 Qea6 Qa7 Qe8 Ne6 Qe7 Be8 Qd7 Nd8 Qe6 Nd7 b8R+ Qb7 Ra8 Nb8 Qd7 Bg2 Rf8 Rd4 Qe2 Nb5 Qb6 Bf7 Ra2 Bh3 Qa5 Nbd6 Qea6 Bc4 Qe7 Rd5 Rf7 Bd3 Qe6 Bb1 Rae2 Ba2 c4+
NR1q2q1/3RbQ1r/2N1q3/rnb1B1R1/2k1r1P1/3Q1b1q/2N2Pn1/1K2R2N b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 h4 gxh4 b4 a6 b6 Be6 b7 Bf7 b5 Be6 b6 Bc8 Bb5+ axb5 g4 Kd7 d4 Kd6 Kd2 c5 Kc2 e5 f6 h5 f7 e4 Ra5 h3 Ra3 c4 Ne2 h2 Ra6 b4 Ba3 h4 Nbc3 e3 Nf4 h3 Qd2 e2 Qe3 e1R Qd2 Be7 f8N Nh6 Na4 c3 N8e6 Nc6 b8R Bb7 Ra5 Rh7 Nh5 Nf5 Qd3 Nh4 Ng3 Re4 Re1 h1Q Kb1 h2 Bb2 b3 Rb5 Qf1 Nh1 Na7 Ba1 Bc6 b7 b2 Nb6 Qe2 Qf3 Qg8 Qf7 Ng2 Ra5 Nb5 Rd8+ Bd7 b8R Ra6 Na8 c2+ Ka2 c1B Kb1 Ra7 Nc5 Rb7 Nd3 Be3 Nb4 Ra7 Nc2 Ra6 Rb7 Qc4 Rdb8 Bc6 Na3 Re6 Ng3 Qb4 Ka2 Qd2 Nc2 h1Q Ra7 Qh3 Nh1 Nc7 Rab7 Kd7 d6 Bf3 Ra7 Kc6 d7 Kd6 d8N Re4 d5 Qd4 Nc6 b1Q+ Ka3 Qb7 Ka2 Qbc8 Kb1 Qe6 Rab5 Ra5 Bb2 Kd7 d6 Qd3 Rg5 Bc5 Rab7 Qd2 Be5 Qdd5 Rb3 Nb5 Rd3 Qeg6 Qf8 Ke6 d7 Qd4 Qe8 Kd5 d8Q+ Kc4 Qf7+ Qe6 Rd2 Qd7 Rdd1 Qc8 Qd2 Qc7 Qe3 Qcc8 Rd7 Qcd8 Qd3#
3B2b1/4rqQk/3KB3/1Q3N1P/q1PnrB1R/Qrr1B2n/qb1N4/2Q2b2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 b4 h5 g4 g6 g5 Na6 Ra3 Nb8 Rg3 Nh6 fxg6 Ng8 Rg4 hxg4 f5 Qa5 Kf2 Qb6 Ke1 Qd8 Kf2 a5 Kg3 d5 Kf4 e5+ Kg3 e4 Kf4 d3 Ke5 d2 c4 d4 h4 d3 g7 Kf7 b6 g3 b7 g2 b5 e3 b6 e2 f6 Kg6 f7 e1R+ Be2 a4 h5+ Kh7 Ba3 Ra7 Rh3 Be6 Be7 a3 Qc1 d1Q Bf6 a2 Rf3 d2 Rh3 Qe7 Rh4 Nh6 Nf3 a1Q+ Nd4 Qa2 Nf5 g1R Qa3 Qd7 Bd8 Q1a4 Qc1 d1B Nd2 Bc5 f8B Ba3 Bc5 Rg3 Be3 Qf7 Bg4 Bb2+ Kd6 Nc6 b8Q Nd4 b7 Be2 Qa8 Re8 b8B Rb7 Qa6 Bd5 Qb5 Ree7 Bg1 Qe6+ Kc5 Ba1 Nd6 Q2b3 Qb4 Nb5 Qba3 Nf7 Bbc7 Bb2 g6+ Kh6 g8Q Ng5 g7 Nd4 Bb8 Qa2 Qe8 Nh3 g8Q Rbb3 Qb5 Bf1 Bf5 Rgd3 Qg4 Re4 Be3+ Nf4 Qg8 Rdc3 Bg4 Qf6 Bc8 Bf7 Be6 Qg7 Qf8 Bg8 Nf5+ Kh7 Qf7 Nh3 Bbf4 Re8 Qf6 Re7 Kd6 Qf7 Qg7+
1N1QN2q/n2RKN2/3QR2B/1b2Q1P1/bbP5/3n2rN/6q1/1qbnkrQ1 b - - 0 1 illegal: No possible last move, all moves rejected
R1nN1r2/RrbrkBb1/4NPQ1/n1KQ1P1N/3n2r1/8/4N3/RrRqn3 b - - 0 1 illegal: No possible last move, all moves rejected
4QbQK/PQN1n1N1/6q1/P1r3B1/3n1nb1/2nb1nrB/k3BR1B/5Q1b b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 a4 h6 g4 gxf4 g5 h5 Ra3 Ra7 Rg3 Ra8 Rg4 hxg4 Ke2 Kf7 Kd3 c5 Ke4 e5 h4 b5 d4 b4 d6 f3 d7 f2 h5 g3 h6 g2 a6 c4 h7 c3 d5 c2 a7 b3 f6 b2 Kf5 e4 d6 e3 a5 e2 Na3 e1N Be2 f1B Nf3 g1N Nb5 b1B Rh2 Ng2 Nh4 Nc6 Bf4 Ba2 Qb1 c1N Nc7 Bc4 Qb7 Na2 Be5 Nf4 Rf2 Ne6 Bh2 Qe8 d8Q Bd5 d7 Ncd4+ Ke5 Bdg2 Nf5 Ne7 Ng7 Rg8 h8Q Nf4 Qh3 Bh1 Qhf3 Kg6 f7 Nc3 Qg4 Bh3 Qgf3 Bf5 Qg2 Bd3 Qf1 Kh7 Kf6 Ngf3 g6+ Kh6 Nf5+ Kh5 g7 Kg4 Qd5 Rb8 Qa8 Rb3 Qb7 Rh8 g8B Rh5 Ng7 Rc5 Qb6 Bca6 Qdb8 Bc8 d8B Ra3 Q6b7 Rb3 Bg1 Kg3 Bh7 Bg4 Bh2+ Kh4 Rg2 Rb1 Qg1 Bh3 Nh5 Nef5 Qd1 Bd6 Qc2 Rg1 Qcb1 Qg8 Ng3 Kg4 Rf2 Qe8 Nh5 Rg3 f8Q Qe4 Qf7 Bf8 Qfa2 Qc6+ Kf7 Qd6 Bf6 Ne7 Qf1 Qa6 Bg8 Kf5 Bg5 Ke5 Ng7 Qc6 Qd8 Ke4 Qd7 Ke3 Qab3 Kd2 Qe8 Bd7 Qc4 Kc2 Bh7 Qb6 Bf5 Kb2 Bh3 Bg4 Qcd5 Neg6 Kg8 Ne7+ Kh8 Ka3 Qa6 Qg6 Qg8 Kb2 Qb7+ Ka3 Nce6 Ka2 Nc7+
N2q1kBq/1rn1Q2q/2bQr3/1Q2N3/1rr2P1P/1n1NrQ2/7N/2R2qRK b - - 0 1 illegal: No possible last move, all moves rejected
5b1Q/n1r1Q2n/n2b2Q1/1B3N2/PR1P1R2/N2b1rN1/N1r1b2K/1r1kbQ2 b - - 0 1 legal: proof: g4 f5 f4 d5 b4 a5 c4 axb4 cxd5 h6 e4 Ra3 g5 Qd6 g6 Rh3 Bb2 Qa6 Bf6 Qe6 Bg5 Qf7 gxf7+ Kd8 exf5 hxg5 f6 Ra3 f5 Kd7 Nc3 Ra5 Nb1 Ra8 Kf2 Kd6 Kg3 Ke5 d4+ Ke4 a4 Ke3 h4 e5 h5 b5 h6 c5 d6 b3 d7 b4 d8Q b2 h7 e4 Qd7 g4 Qe7 g5 Bc4 b3 Nc3 b1R Kh2 g3+ Kh3 g2 Qe6 b2 Qd5 g4+ Kh2 g3+ Kh3 Ba6 Ra2 Ne7 Qd7 Nc8 Rh2 Ra7 Qe8 Rc7 Bb5 c4 Qf1 Kd2 Nge2 g1B Rf2 g2 Rf4 e3 Ng3 e2 Qe7 Bf2 Kh2 g1N Qd6 Rg8 h8Q e1B Ra3 Rg6 Rb3 Na7 Rb4 Nh3 Na2 c3 Qe7 c2 Qh5 Bh6 f8Q c1R f7 Ng5 f6 R1c2 Qh8 Nh7 f8N Bg7 f7 Rf6 Ng6 Bf8 Qh6 Kd1 Ne5 Rf5 Qg6 Be3+ Rf2 Bf4 Nc4 Bd6 Na3 Rf4 Qh5+ Rf3 Qg6 Bg7 f8N Bh6 Bc6 Be2 Ne6 Bf8 Ng7 Na6 Nf5 Rbc1 Qgg5 b1B Bd7 R2c4 Qgf6 Bbd3 Bb5 Rb1 Qff7 Rc2 Qg6 Re3 Rf4 Rf3 Bd7 Bg7 Be8 Bf8 Bb5
3Q2b1/bnN2B2/Pbb5/1NbQ3n/2bn1R2/N5r1/1K3PQB/2NQn1qk b - - 0 1 illegal: No possible last move, all moves rejected
2Q5/rpr1r3/BR3Q2/R1Bb1P1B/7b/2KnB2R/qn2P1R1/nb3kqN b - - 0 1 legal: proof: d4 e5 dxe5 d5 c4 f5 cxd5 a5 b4 axb4 g4 h6 Nd2 Be6 Ne4 h5 gxh5 Bc8 Nf6+ Ke7 Ng4 fxg4 Nf3 Kd7 Ng1 Ke8 Kd2 Ke7 a4 g5 f4 c5 h4 b3 d6+ Ke6 f5+ Kd5 d7 Kd4 a5 b2 a6 b1B h6 c4 a7 g3 e6 g4 h7 g2 h5 g3 h6 Ne7 Qc2 c3+ Kd1 Nbc6 Rh2 Nb4 Ra6 Nd3 Rb6 Ng6 e7 Nge5 e8B Be7 Nh3 g1Q Rg2 Nc4 Bh5 Qg8 d8B Be6 Nf2 Bd5 Nh1 Bh4 Be7 Rc8 a8R Rc7 Bf8 Qf7 Bd6 Re8 h8R Ree7 h7 Ke4 Be3 Qe6 Rh2 g2 Ra5 Qg8 Bdc5 Qa8 Rab5 Qa3 Ra5 Qa2 Bed4 Kf4 Rg8 Ke4 h8Q Kf4 Qf6 Ke4 Rh8 Kf4 Nf2 Kg3 Be3 Nc1 Rg8+ Bg5 Ra4 Rcd7 Bed4 Nb2+ Ke1 Nb3 Bb4 Na1 Qc1 c2 Raa8 Re3 Kd2 Ra3+ Be3 Qh1 Ra7 g1R Bg2 Re7 Be4 Rf1 Bd3 Qg1 Rh1 Kg2 Rh3 Re1 Bb5 Kf1 Nh1 Bh4 Rg2 Ra5 Qd1 c1N Qc2 Ra3 Qc8 Ncd3 Ra4 Rc1 Raa6 Rcc7 Bbc5 Ra4 Kc3 Rg4 Ra3 Ra4 Bc4 Ra6 Ra5 Ra7 Ba6
1R3nr1/2Nn1B1N/b1Qr1pBK/1r3N2/1QP2k2/4Nn1Q/1Pn5/2b1n1Qq b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 a4 c5 axb5 h6 d4 Qf6 dxc5 Qb6 Bf4 Qd8 Ra3 Ba6 Rg3 gxf4 g5 Bb7 g6 Bc8 Rg5 hxg5 Kd2 Ke7 h4 Ke6 e4 d5 c4 a5 h5 g4 h6 f3 Ke3 g3 Kf4 g2 h7 a4 g7 d4 b6 f2 b7 a3 c6 a2 c7 a1N Nc3 d3 Nf3 g1N Ng5+ Ke7 e6 Kf6 e7 d2 e8B Nd7 b8Q Ne7 g8N+ Kg6 e5 Bg7 e6 Ba6 c8Q Nc2 Nh6 Nf3 Nd5 Rg8 h8Q Nfe1 Nf5 Bh6 Qb4 Rb8 Nde3 Rb5 Qc6 Qa8 Bd3 f1N Qg4 d1R Qg1 Nd2 Rh2 Bg7 Qh3 Ndf3 Kg4 Qb7 Nh7 Bh6 Be4 Rd6 Rf2 Nc8 e7 Ncb6 Rh2 Nf8 Rd2 Re6 Rd8 Rd6 Rb8 Qa8 Ng5 Kf6 Kh5 Ke5 Nh7 f6 Bf7 Nbd7 e8N Kf4 Nc7 Ke5 Ned5 Bc1 Nde3 Kf4 Kh6 Qb7 Bd3 Nd2 Qb6 Qh1 Qc6 Ndf3 Nd4 Ng2 Bdg6 Nge1 Ndf5
3Bk2n/1BQ2n2/2P1Rr2/r2b1QbQ/Bn4P1/4rBN1/nK4pq/Rn2Q3 b - - 0 1 legal: proof: h4 c5 f4 g5 a4 e5 fxe5 b5 axb5 f5 d4 cxd4 Nc3 f4 Ne4 Ba6 hxg5 Bb7 g4 Bc8 Ng3 fxg3 Kd2 h5 c4 d5 Kc2 a5 e4 h4 b4 d3+ Kb2 d2 g6 g2 g7 d4 e6 d3 e7 h3 c5 a4 c6 h2 e5 Qc7 b6 Rh3 b7 Be6 b5 Nd7 b6 Ra5 Be2 Bd5 Qe1 Nh6 g8B Nf7 Bf3 Bh6 Ne2 Nh8 Ng3 Bg5 Rg1 h1R b8Q+ Qc8 Qb7 Qb8 Qc7 Rh6 b7 R1h3 Rf1 Rg6 Rf2 Rf6 Re2 d1N+ Ka3 Qc8 b8Q d2 Qb1 Nc3 Kb2 Na2 Qf5 Qa8 Re3 Qa7 Re4 Qg1 Re2 Qh2 Bh7 Kf7 e8B+ Kf8 e6 Ne5 Bg8 Nef7 Bd7 Ke7 Bc8+ Ke8 e7 d1N+ Kb1 a3 Bb7 Ndc3+ Kc2 Bh6 Bg5 Nb1 Bh4 Bg5 Re6 Nac3 Bh7 a2 Kb2 Nd2 Rc1 a1N Rd1 Nc2 Ra1 Nb4 Bg8 Ndb1 Bh7 Nca2 Bg8 Ne5 Bh7 Kf7 Bg8+ Kg7 e8Q+ Nef7 Bh7 Rg6 Nh1 Bd2 Qfe4 Be3 Bd8 Rf6 Bd1 Bg5 Ba4 Rd3 Ng3 Re3 Qce5 Nh6 Qh5 Kf8 Qc7 N6f7 Qef4 Rc3 Be4 Rd3 Qf5 Re3 Rd6 Ke8 Bf3 Rg6 Rf6 Rh6 Rd6 Rf6 Re6+
2R5/2r1Q3/R2Kn2P/b5q1/P5Rp/1NBn2Rr/Nkbn1nbN/1NrQ4 b - - 0 1 legal: proof: e4 d5 g4 a5 b4 axb4 c4 f5 exf5 Ra6 cxd5 Ra8 g5 h6 gxh6 g6 h7 Ra5 Nh3 Ra4 Ng1 Ra8 h4 Be6 h5 Nc6 h6 Bc8 Be2 Nb8 Bh5 gxh5 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 f4 b5 d6 h4 d5 b3 a3 b4 d7 b2 d6 b3 f6 Na6 f7 Nc7 f5 Nf6 Nf3 Ng4+ Ke4 e5 f6 Ne6 Bd2 Nf2+ Kf5 e4 Ke5 e3 Nh2 e2 Rg1 e1N Rg3 Ba6 Bb4 Bb7 a4 Rg8 h8R Ra7 Rg4+ Be4 Ra3 Rc7 Rh7 Qe7 d8N Bg7 f8R Bh8 Rg1 Rg3 d7 Rh3 Nb7 Bg2 d8N Bg7 Nc6 Ned3+ Kf5 Bh8 f7 Bc3 Rc8 Bd2 f8Q Be1 Nc3 b1N Qf7 Qd8 Qe7 Nd2 Nb1 b2 Rh8 Qg8 Ra8 Qg3 Rhc8 Qe3 Ra6 Qg3 Nc3 b1B Kf6 Bc2 Nb1 Qe5+ Kf7 Qg5 Nba5+ Kd5 Ke8 c4 Nb3 c3 Kf7 Kc4 Ke8 Bf3 Rg4+ Be4 Ncd4 Bg2 Nc1 Bb3 Na2 c2 Kf7 c1R Ke8 Bc2 Rb3 Rc6 Kd7 Rc7+ Kd6 Nf1 Bc5 Ba5 Bb4 Nd2 Ra3 Ne5 Rag3 Ned3 Ne2+ Kb3 Nd4+ Kb2 Nb3 Rc4 Rd8 Rc5 Rc8 Rc7 Bc3+
k3R1r1/B3Qn1B/n2Pb3/KQ2rR2/Q1rPN3/2Bq4/npbrQ2q/4B3 b - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 h5 b4 axb4 e4 e6 f4 f6 e5 Bd6 Nc3 Bc5 Ne4 Bd4 Nf2 f5 gxf5 Bb6 Ng4 hxg4 Bc4 Bc5 Bd3 Be7 Bf1 Bf6 exf6 Ra6 Bh3 Ra3 Bf1 Ra8 h4 Kd7 a4 b5 a5 c5 f7 Kc7 f8B Kb7 d6 g5 a6+ Ka7 f6 c4 f7 e5 h5 g3 h6 g4 h7 g2 Bd3 b3 Nh3 c3 Rf1 g1Q Qe2 b2 Ng5 b1B Ne4 g3 Bg7 b4 f8Q b3 Qe8 b2 Qb5 g2 f5 c2 f6 Qc7 f7 Qh2 f8Q g1R Qe7 Rg2 Rf5 Nh6 Ra5 Re8 h8B Be6 Bf6 Rg4 Bh4 Nf7 Ra4 Rg2 Rc4 Qd7 Rc8 Reg8 Re8 Qc7 Qg5 Qc4 Qe7+ Nd7 Bg7 Rc8 Bf2+ Ka8 Ba7 Qd4 Bb8 Nc5 a7 Na6 Bf6 Qc3 Bh4 Qa3 Bf2 Rc6 Bd4 Rc8 Bc3 Rc5 Bc4 Rc7 d4 Rc5 B1d2 c1N Kd1 Na2 Bd3 Rc4 Be1 Bc2+ Kd2 Bd1 Nf6 e4 Bb1 e3+ Kd3 Nd8 Ne4 Nf7 Nd2 Qa4 Qf1 e2 Rf6 Rc5 Bf2 e1R Rf4 Ree5 Be1 Nc7 Qf3+ Rcd5 Qh5 Qc2+ Kc4 Qe4 Bd3 Qe3 Bh7 Bc2 Ne4 Rd2 Qe2 Qeh3 Rf5 Q3g3 Qa5 Kb7 Qc5 Nc1 Kb4 Qd3 Qc4 Rc5 a8Q+ Kb6 Qa3 Kb7 Qab3 Ka8 Qb5 Rc4+ Ka5 Na6 Qa4 Na2 Ba7+
1Bbn2rQ/Rn3N1Q/PbQ1BK1Q/pB2r3/b3q1b1/k1n2R1P/1q2B3/8 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 exf4 c4 d5 cxd5 Bg4 Nh3 Be6 Ng1 Bc8 bxa5 b6 a4 Ke7 a6 Kd7 a7 Ke8 a5 Qd7 a6 Qf5 Na3 Qf6 Nc4 Qd8 Na5 bxa5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 f5 d4 g5 d6 c5 h3 g4 d7 c4 d5 f3 h6 c3 d6 c2 h7 f4 Be2 g3 Qd5 g2 Qe6 f2 Ra3 f1B Nf3 g1N Qh6 Ne7 Ng5 f3 Bf4 c1Q Nf7 f2 Kf6 Qe8 d8Q Nf5 e5 Qb2 d7 Nd6 Rf3 Nc6 Qc7 Nd8 Qc6 Rg8 h8Q N6b7 Q8h7 Bc5 Rh2 Bd4 Rg2 Bb6 Rg7 Bg2 Bh2 f1B Bg3 Rb8 a8B Bh1 Rc3 Bfg2 e6 Bf3 e7 Bg4 Be5 Be4 Re3 Bc2 Rf3 Qf8 e8B Ba4 Rf5 Ka3 Rf3+ Qb3 Bg3 Qb4 Bf4 Qe4 Be5 Ne6 d8Q Qc3 Qd4 Ned8 Bd7 Qb3 Be6 Re8 Bb5 Ne2 Bf4 Nc3 Bh2 Nc5 Bb7 Ra8 Bb8 Qb2 Qe5 Bd7 Bc8 Ncb7 Bec4 Bdf5 B8e6 Rg8 Be2 Ra7 Bb3 Bc8 Be6 Ra8 Qef5 Re8 Qh8 Re7 Qfh7 Re8 Bd7 Re5 Be6 Bd7 Rf4 Nc5 Nd6 Nf7 Bc7 Rg8 Rf3 Bc8 Bb8 Nd8 Ra7 Ncb7 Nf7
1NRrn1R1/1PB1r1b1/b1qqNqQ1/2r5/QKN5/2nr1p2/3RRNP1/5k2 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 h4 Bf8 b4 g5 hxg5 a6 e3 Qd7 b6 Kd8 b5 Ke8 b7 Qd6 b6 Qd8 Bb5+ axb5 d4 Ke7 Kd2 Kd6 Kc3 c5 g6 f5 e4 h5 g7 h4 Rh2 f3 Ra6 f2 Ra5 f1Q Qa4 h3 Ra6 f4 Bb2 b4+ Kb3 c4+ Kc2 c3 Kb3 c2 Ra7 c1R Qa2 Rh7 Qa4 Nf6 g8R Ne8 Na3 Na6 b8N Bg7 Re7 Nac7 Ba1 Ba6 b7 f3 Re5 Nb5 Nc4+ Kc7 Re6 Qf6 e5 Nc3 Bb2 Qd3 d6+ Kd8 d7 Kc7 Rh1 h2 d8N Qe4 Rd6 Qc6 d5 Rd1 e6 Rd3 e7 Rh5 Na5 Kb6 Nh3 Kc5 Nc4 Kd4 Re1 h1R Re2 Re1 Nf2 Re5 Rd7 Rf5 d6 Rc5 Rd2 Re6 Re2 Ree5 Bc1 Re4 Bf4 Re6 Kb2 b3 Ka3 b2 Kb4 Ree5 Rc7 Ree3 d7 b1Q+ Rb2 Re1 Rc8 Qd1 Bc7 Qd2 Rc2 Qdf4 Re2 Q4d6 Rb2 Ree5 Re2 Ree3 Nd1 Ke4 Nf2+ Kf4 Ne6+ Kg3 d8R Kh2 Ba5 Kg1 Rd7 Kf1 Bb6 Nc7 e8Q Ree5 Qf7 Ne8 Bc7 Ree3 Qg6 Ree5 Nf4 Re7 Ne6 Qdd5 Rcd8 Rd2 Rd6 Rd1 Nd7 Rc8 Nb8 Qde5 Rdd2 Qed6 Rc2 Rd3 Rcd2 Rd7 Bb6 Rcc7 Rc8 Rd8 Ba5 Re7 Bc7
3n2RK/1Pr1RqB1/Nbqk4/NPQq2R1/b1p1r1R1/5q2/1r1Q1Q2/2Q1n3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 g5 f4 gxf4 g5 h6 Bh3 h5 Bg4 hxg4 Kf2 Kd7 d4 e5 b4 a5 h4 c5 f6 a4 f7 c4 g6 g3+ Kf3 e4+ Kg4 f3 Kf5 g2 g7 f2 Kg6 f1Q h5 a3 h6 a2 d6 e3 d5 e2 b6 e1R h7 Re4 b5 Re7 b7 Qe1 Nf3 g1Q+ Ng5 Qe8 Nd2 Ra6 Bb2 Qge3 Nge4 Qb6 Qc1 Nh6 g8R Qd1 Bg7 Qf3 Rh4 Nc6 Nb3 Nf5 Na5 Ne3 Rg4 Nc2 Kh6 Ne1 Nc5+ Kd8 d7 Kc7 d8R Re4 Rd6 Bf5 Re6 Nd8 Rg5 Be7 f8Q Qbc6 Rg4 Bf6 Re7+ Kd6 Rg5 Ra8 Na6 Bd4 Rb1 a1Q Rb2 Be5 Rbg2 Rc8 R2g4 Rc7 Qf7 Bf6 Qh5 Qac3 Qh4 Qe5 Qf2 Qe6 Qc5+ Ke5 Qf2 Qf7 d6 Kd5 d7 Kd6 Rf8 Rg8 h8Q Qed5 Qh7 Be5 Qg6+ Bf6 Qh5 Bd4 Rfe8 Bh7 Rf8 Rh8 Rg8 Bb6 Qhh2+ Re5 Re4 Ne6 Qfb2 Qd4 Bf8 Kd5 Reg4 Qdc5 d8Q+ Q5d6 Qd7 Nd8+ R5g6 Re3 Qf5+ Re5 Qhc2 Qde6 Bg7 Kd6 Bf6 Re2 R6g5 Qee4 Bg7 Qed3 Qe4 Qdd5 Qed4 Re3 Qf2 Rb3 Qbd2 Rb2 Rf4 Qe6+ Bf6 Bc2+ Kg7 Rh4 Re4 Rg4 Kh8 Qf7 Bg7 Ba4 Q4e3 Rg1 Rh4 Rg4 Qed4 Rf4 Rhg4 Re4 Qc5+
1R2Q3/1P1P1r2/3nQq2/1b6/r3r1Nb/2B1BqQ1/1qpNk1r1/B2QBn1K b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 f4 h6 g4 Kf7 b4 Ke8 f5 Qd7 Ra3 Qd6 Be2 Qd8 Rf3 h5 Rf4 gxf4 g5 Bh6 Bf3 Bf8 Bg4 hxg4 Kf1 Kd7 Kg2 Kd6 d4 e5 h4 a5 h5 c5 g6 c4 f7 g3 f6 e4 h6 e3 b6 f3+ Kf1 f2 Kg2 a4 b5 a3 h7 a2 g7 a1Q b7 e2 b6 e1R Rh3 f1Q+ Kh1 c3 Nd2 Na6 b8Q+ Nc7 b7 Nh6 g8Q Be7 f8Q c2 f7 Ng4 Qe8 Qb2 f8B Re4 Bg7 Bh4 Rh2 Qf7 Ngf3 Ra4 Ne5 Ne3 Ng4 Nf1 Rf2 Qh5 Rf8 Qf6 Qgf7 Rg8 h8B Bd7 Qg6 Bc6 Qbc8 Nb5 Qce6+ Kc7 d6+ Kb6 d5 Kc5 d7 Kd4 d8B Kd3 Bb6 Nd6 Bf2 Bb5 Be1 g2+ Kg1 Qe7 Bc3 Rg7 Qg5 Rh7 Qf4 Qhf7 Qg3+ Qf3 Rg8 Rf7 Bhf6 Nc4 d6 Qf8 d7 Nd6 Bh8 Qh6 Rf8 Qf6 Rg8 Ne3 Kh2 g1R Rf8 Rg2+ Kh1 Nf1 Bg7 Qf5 Bgd4 Qf6 Be3 Qb4 B1b2 Qb3 Ba1 Qb2 Q8e7 Nc4 Rb8 Nd6 Qc1 Ke2 Qe8 Q3f5 Qb1 Qf3 Qd1+
kqR3K1/P1QQ2Nr/pbr2N2/2N3b1/n4nB1/5N1Q/R2Q1P2/2qq2rq b - - 0 1 illegal: No proof kernel
N4bk1/1Q3q1R/QRN4P/2b2pnR/1qP4r/q1qN4/bq4N1/1R1B1Kn1 b - - 0 1 legal: proof: f4 b5 a4 a5 axb5 e5 d4 f5 g4 c5 g5 Ra6 fxe5 cxd4 Be3 Rf6 gxf6 h6 Bg5 hxg5 e4 Kf7 h4 d5 b4 d3 h5 d4 b6 g4 b7 g5 b5 g3 b6 g4 Nd2 g2 Ngf3 g1Q Qb1 a4 Nb3 a3 Nc5 g3 Nh4 a2 Ng2 Nc6 b8R Qc7 b7 Qh2 Be2 d2+ Kf1 d3 Bd1 Nh6 e6+ Kg8 e5 Nd4 e7 Ne2 e8N Qf7 e6 Ng1 e7 Be6 Nc7 Qh4 e8Q Qb4 Qb2 Rh7 Rb1 a1Q c3 Qaa3 Na8 Ba2 c4 Qbc3 Qeb5 Qab4 Bc2 Rh8 Qa6 d1Q+ Ne1 d2 Nd3 Qg4 Bd1 Qgd4 Ng2 Qca3 Rh3 Qdc3 Rh2 Qe8 Rh1 Nf7 Qb3 Ng5 h6 Qf7 Qb2 Rh7 Rh5 Rg7 Re8 Rg6 b8N Rg7 Nc6 Rg6 Ba4 d1Q+ Re1 Qg4 Bd1 Qgd4 Qb3 Qcb2 Re7 Qdc3 Rb7 N5f3 Rb6 Rg4 Rh4 Ng5 Rh5 Qd6 Qbb5 Rh4 Qb7 Qde7 Q5a6 Qeb4 Nde1 Bd6 Qb5 Ne2 Ne3 Qf8 Q5a6 Be7 Nd3 g2+ Kf2 g1B+ Kf1 Bf2 Ng2 Ng1 f7+ Kh8 Na7 Bfc5 Nc6 Qg8 f8R Kh7 Nde5 Qf7 Nd3 Bed6 Rg8 Bf8 Rg7+ Kh8 Rh7+ Kg8 Qba7 N5f3 Qe7 Ng5 Qeb7
QQ1q4/2r1N1qQ/R3PnP1/Kn1p2QB/R4N2/r1Nn3N/bn3r2/1k2q3 b - - 0 1 legal: proof: h4 e5 g4 c5 f4 b5 fxe5 g5 d4 cxd4 a4 Na6 axb5 Ke7 Bf4 gxf4 g5 Nb4 Nf3 Nc6 Ng1 Bh6 g6 Bg5 hxg5 Nb8 Qd2 Kf8 Qd1 Ke8 Kd2 Ke7 c4 Ke6 e4 h5 b4 f5 g7 a5 g6 f3 c5 f2 b6 f4 c6 d3 Kc3 h4 b5 f3 c7 h3 b7 h2 b6 d2 Nh3 a4 Kb4 a3 Kb5 a2 Ng1 Nc6 b8Q Na7+ Ka4 Rh7 b7 Nf6 Qc1 d1N Be2 f1Q Qg5 f2 Bh5 Qe1 Nc3 f1R Ka5 Rf2 Nh3 Nb2 g8Q+ Rf7 Rf1 h1N Qh7 Nb5+ Qa7 d5 b8Q Ba6 Qab7 Ra7 Q7a8 Rd7 Rg1 Rf7 Rg4 Rg7 Rd1 Re7 Rd4 a1Q+ Ra4 Rd7 Kb4 Re7 c8N Rec7 Rg3 Nd4 Rf3 Bc4 Ne7 Nb5 Rg3 Ba2 Rg1 Kd7 e6+ Kd6 Rg4 Ng3 Ra5 Ne2 Rh4 Nc1 Ra4 Rb7 Ka5 Kc5 e5 Ncd3 Ra3 Rb6 Rha4 Rd6 Ng8 Rdc6 e7 Rb6 e8N Rbb7 Qa6 Ra7 e6 Ra8 Ne7 Raa7 Nd6 Ra8 Nc4 Kd4 Qf5 Raa7 Ne5+ Ke3 Qg4 Kd2 Qg2 Kc2 Qg5 Nc1 Nd3 Ra8 Ndf4 Ncd3 Rb4 Raa7 Ne4 Kb1 Ra4 Rab7 Qaa8 Rb6 Ra3 Rbc6 Ra4 Rc3 Rc4 Ra3+ Rb4 Nc3 Rb6 Nb5+ Ka6 Nd1 Nc6 Ne8 Ne7 Qg7 Rc6 N1b2 Nc3+ Kc1 Ka5 Nf6 Ra6 Qg1 Nce2+ Kb1 Rd6 Qd1 Ra6 Qe1+ Nc3+
4R3/1qQn2p1/RQr1Q2R/3Knb2/Nq2Brk1/PR2Pn1N/5Q2/4rr1q b - - 0 1 legal: proof: f4 e5 c4 a5 b4 axb4 g3 d5 cxd5 f5 Bb2 h6 Bd4 Be7 Be3 Bg5 fxe5 f4 Qc2 f3 Qd1 Be7 Bg5 hxg5 Qc2 Bc5 Qc1 Be3 Qd1 Bf4 gxf4 Qd7 Qc1 Qd6 Qd1 Qd8 Kf2 Kf7 Ke3 Kg6 Kd4 Kf5 h4 b5 h5 g4 e3 f2 e6 g3 d6 c5+ Kd5 b3 d4 b2 e7 g2 e8R c4 d7 c3 h6 c2 h7 c1Q Rh6 b4 Nc3 b1N Qb3 Kg4 f5 Ra4 f6 Qb6 d8Q Nc6 f7 Nd2 f8Q Qb7 Qc7 Nf3 Bd3 f1R Be4 Bf5 Nh3 g1R a3 Qd2 Rb1 Nce5+ Rc6 Ra6 Na4 Qh2 Qa2 Qh1 Rb3 Re1 Qfd6 Rgf1 Qe6 Rb6 Qf2 Nf6+ Kc5 Rg8 h8R Nfd7+ Kd5 Rf8 Rh6 Rf7 Rc3 b3 Rd3 b2 Rb3 Qb8 Rd6 b1Q Rc6 Rb7 Ra6 Rb6 Rc3 Nf6+ Kc5 Qb7 d5 Qb2 d6 Qb3 Qd5 Bg6 d7 Qb1 Qdc6 Rf8 Kd6 Qb4+ Ke6 Rf7 Rb3 Rf8 Q6d6 Rc6 Qb6 Bh7 d8Q Nfd7 Kd5 Rf4 Q8c7 Bf5 Qe6
kRQ1b1RK/brb3N1/b4rr1/N2p4/1bqB1P1R/3P2b1/2NR1Nb1/Q7 b - - 0 1 illegal: No possible last move
5N2/6Qq/2RK1B1Q/1rR5/bPQ5/1RRpPr2/1qk1bbpn/Bn3Q1n b - - 0 1 illegal: No possible last move
KRN4B/3Q3N/1Q1pr3/2qP1pBb/n4rkn/3P1Qbr/1N2n1N1/Q6q b - - 0 1 legal: proof: f4 e5 fxe5 g5 b4 b5 a4 h6 axb5 Ne7 g4 Ng8 Ra4 Qe7 c3 Qc5 d3 Qd4 cxd4 Be7 Ra6 Bd6 Bh3 Bf8 Rf6 h5 Rf4 gxf4 g5 Nf6 Bf5 Ng8 Bg4 hxg4 Kf2 Ke7 e4 Ke6 h4 a5 b6 c5 b5 f5 h5 d6 g6 c4 b7 c3 b6 c2 g7 a4 h6 a3 h7 f3 Ke3 g3 Nd2 a2 Ne2 a1N Nf4+ Kd7 e6+ Ke7 e5 g2 Nc4 g1R Ng2 f2 Qf3 f1Q Nb2 Nc6 b8Q Bd7 b7 Qd1 Qa7 Re8 b8Q Rf1 Qbb6 Nb3 Qa1 Nc5 Bd2 c1Q d5 Na5 Kd4 Na4 Be3 Rf2 Rh6 Qh1 Bg5+ Nf6 Rh4 Nc4 Re4 Qc2 Re1 Ne3 Rb1 Rg8 h8B Bc6 Bf4 Ne4 Bh6 Nec3 Bf4 Nf1 Kc4 Ne2+ Kb4 Nh2 Ka5 Qc3+ Ka6 Qc5 Ka7 Rf1 Qh5 Nf3 Bc1 Nh4 Qf3 Rb8 Be3 Rb7+ Ka8 Be8 Bf4 Bh5 Bg5+ Ke8 e7 Kf7 e8N Kg6 e6 Re7 Nf6 Rf2 Qg4 Rf4 Qf3 Re8+ Kb7 Be7 Nh7 Bf6 e7 Be5 Ka7 Rgf8 g8N Rf6 Kb7 Re6 Ka7 Rf8 e8Q+ Rf7+ Qd7 Rfe7 Ka8 Rg7 Bf6 Rf7 Ng5 Rh7 Ne7+ Kh6 Nc8 Kg6 Ne4 Kh6 Bd8 Kg6 Nf6 Kg5 Qe3 Rh6 Nh7+ Kg4 Qe4 Bc3 Qe3 Be1 Bg5 Bg3 Qf3+ Kh3 Bhf6 Bf7 Qb4 Ng6 Nd1 Rh5 Bh8 Rhh4 Qf1 Kg4 Rb3 Be8 Nb2 Rh3 Qa5 Bf7 Rb8 Nh4 Qb6 Bh5 Qf3+
B2K1nQ1/1N2r1P1/br4Rq/pq2N3/1n2p1PQ/2Q5/rbqN4/2QB1Nk1 b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 b4 f6 d4 Nd7 e4 Nb6 d5 Nd7 Be3 Nb8 Bd4 Bg4 Ra2 Bc8 Re2 exd4 e5 Bh6 e6 Bf8 Re5 fxe5 Ke2 c5 Kf3 a5 Ke4 h5 Kf5 d3 f4 c4 g4 c3 g6 d2 d7+ Ke7 g7 Kd6 e7 h4 e8B h3 b6 e4 b7 c2 b5 Kc5 Ke6 Kd4 d6 Ke3 b6 Kf2 f5 c1Q f6 h2 f7 Rh7 Nf3 Qa3 Be2 Ra6 Qc1 d1Q Nbd2 Nc6 b8Q Ra7 b7 Nce7 Qbc7 Qc2 b8N Ng6 Qc3 Qb6 Nf1 Nf6 Bd1 Rh6 Nc6 Qab2 Nce5 Nd5 N3d2 Ba6 d8Q Q2b5 Bc6 Nb4 Ba8 Re7+ Kf6 Qe3 d7 Kg2 Qe8 Qh3 d8N Qe3 Nb7 Kf2 Rg1 h1R Qd8 R1h2 Rh1 Rg2 Rh3 Kg1 Rf3 Rhh2 Rf5 Qh6 Rg5 Rg3 Q3b2 Rb3 Qc3 Nf4+ Rg6 Ne6 Qdd3 Rb2 Qh3 Ra2 Qh4 Rh3 Qb3 Rd3 Qc4 Rd6 Qc3 Rb6 Bf3 Rd7 Bd1 Bd6 f8Q Re7 Qe8 Bc5 Qg8 Bd4 Qc7 Bb2 Qcc8 Re8 Qc3 Nf8+ Kf7 Rc8 Ke7 Rc7+ Kd8 Rd7+ Ke8 Re7+ Kd8
2bR1Q2/3qp2B/1K1P1r1q/2n1b1rR/q1RQn3/P2bN2N/1k2p3/2R2Q1Q b - - 0 1 legal: proof: g4 d5 e4 a5 exd5 h5 gxh5 f6 d6 Nh6 d7+ Kf7 b4 axb4 d4 c6 c4 Nf5 c5 Nh6 d5 Ng8 Bf4 Qc7 Be5 Qd6 cxd6 fxe5 Kd2 Kf6 Ke3 g5 d8R b5 f4 g4 h4 e4 Kd4 g3 Kc5 e3 f5 Ke5 h6 g2 a3 b3 f6 b4 h7 e2 f7 b2 h5 b3 d7 Ra6 h6 Nf6 Qd2 Bg7 f8Q Rg8 h8Q Ne4+ Kc4 c5 Kb5 c4 h7 c3 Qc2 Kd4 Rh2 Rf6 d6 Na6 Nh3 g1Q Kb6 Qg4 Qc1 c2 Nd2 Kc3 Bg2 b1B Nc4 b2 Qf1 c1Q Ne3 Bd3 Bf3 Qc2 Rc1 Nac5 Re8 Qh4 d8R Qh6 Bh5 Kb3 Bg6 b1Q Rh1 Kb2 Bf5 Be6 Rc8 Qd1 Red8 Qa4 Rc7 Bc8 Bg6 Ne6 R7c4 Qbc2 Bf5 Qd7 Bg6 Qca4 Rh2 Rf2 Rh1 Bc3 Qd4 N6c5 h8Q Rf6 Bh7 Rg5 Ng1 Rg8 Rh5 Rg7 Nh3 Rg5 Qd5 Be5 Qhg7 Rgf5 Qgg2 Rg5 Qgh1 Bb1 Qd2+ Bc2 Qd5 Bd3 Qd4+
3bqN2/P5pr/4NBN1/b3Rq1r/B2K2PQ/k2p1B2/1nqN2nQ/r4B2 b - - 0 1 legal: proof: d4 e5 b4 c5 dxc5 a5 f3 axb4 e4 f5 exf5 e4 Ba3 b6 Bc1 e3 g4 Bb7 a4 Be4 fxe4 h5 Nh3 h4 Rg1 Ra7 Rg3 hxg3 Ng1 Ra8 Bd3 Nh6 Kf1 Qe7 Nf3 Rh7 Nc3 Qd8 Bb2 Be7 Qe1 Nc6 Rc1 Na7 Nb1 Nc8 Rd1 Na7 Bc1 Rh8 Qe2 Rc8 Re1 Bd6 Qd1 Ra8 Ke2 Be7 Rh1 Bf8 Ke1 Nc6 Bf1 Nb8 Ng1 Ng8 Ke2 Ke7 Kd3 d5 h4 b5 c4 d4 c6 Kd6 c5+ Ke7 c7 e2 c8B e1R h5 b3 h6 b4 e5 g2 c6 b2 a5 b3 a6 Nf6 e6 Kd6 h7 Kc5 a7 Kb4 e7 Qe8 c7 Nh5 f6 Nd7 f7 Nb6 Qe2 Nc4 Nh3 g1B Nd2 Ka3 Ng5 Nf4+ Ke4 d3 Rh5 Ng2 Ne6 Bb6 Re5 Ba5 Kd4 Rb8 Qf2 Rb5 Bb7 Rd1 c8Q Bd8 Re4 Rh5 Qc7 Re1 Re5 Rd1 Ne4 Re1 Bd2 b1Q Qh4 b2 Bc3 Qc2 Nd2 b1Q Bf3 Qbb5 Ba1 Nb2 Qb8 Qec6 e8B Bb4 f8N Bba5 Bd7 Qc8 Qc7 Qbb8 Ba4 Qb5 Qb8 Qe8 Qc7 Nd1 Bc3 Nb2 Qb8 Ra1 Qc7 Rg8 h8N Rh7 Nhg6 Rgh8 Rd5 Qcd7 Qch2 Qdf7 Re5 Qf5 Bb4+ Ka2 Bd6 Rh5 Be7 R8h7 Bg5 Ka3 Bf6
Q2QnBB1/p2N1q2/3B2k1/R2pB1N1/1N2nNbb/Pr1nr1nn/K4P2/8 b - - 0 1 legal: proof: b4 b5 g4 e5 d4 c5 dxe5 h5 bxc5 hxg4 e4 f5 exf5 b4 a3 b3 Ra2 bxa2 Kd2 Kf7 Kc3 a1N Kb2 g5 c4 g3 h4 d6 c6 g2 e6+ Kg7 h5 g4 c5 g3 c7 Qg5 h6+ Kh7 c6 Qd8 e7 Ba6 c8Q Nc2 e8N Ne1 f6 Qe7 c7 Nf3 f7 Nf6 Ne2 g1N Ka2 g2 Nbc3 Ng5 Rh5 Nge4 Nd5 Nh3 Nb4 g1N Bf4 Nc6 Ng7 Kg6 h7 Ne8 Ne6 Ne5 Ng5 Rb8 Qd2 Rb6 Qa8 Nd3 c8N Qb7 Be5 Be7 f8B Bb5 Bg2 Bd7 Bf4 Rb5 Nb6 Bg4 Nd7 Rg8 h8B Rg7 Nf3 Bh4 Ng5 Re7 Bhe5 Rb6 Qe3 Rb5 Qb6 Re6 Qbd8 Re7 Nc3 Ne2 Ncd5 N2g3 Bf3 Qc7 Bd1 Rb8 Bb3 Qb7 Ne3 Qc7 Bg8 Rb5 Ng2 Re6 Nc6 Rb3 Nb4 Re7 Be3 Qc4 Bc5 Qf7 Nf4+ Kf5 Rh6 d5 Ra6 Re6 Ra5 Re7 Nh5 Kg6 Bcd6 N4f6 Bd4 Re3 B4e5 Nfe4 Nf4+
q3Bn2/2Rn3k/p2r1N1B/2pnB3/N2br2N/2b4K/1P2PQn1/1NQ3bB b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 g4 hxg4 d4 Nc6 d6 Bf5 f3 Rh6 d5 Nb8 Ra4 Be4 fxe4 Rh8 Rd4 exd4 Kf2 f5 Kg3 Kf7 h4 Kg6 d7 c5 b6 d3 b7 d2 h5+ Kh7 e5 g5 e6 a6 h6 Ne7 d6 Bg7 Bg2 Re8 Nf3 Bc3 Nh4 Ng6 e7 f4+ Kh2 g3+ Kh3 f3 Rg1 f2 Bh1 Rh8 e8B f1N Qe1 d1N Qf2 g2 Bd2 Qb6 d8N Nf8 d7 Qa7 Ne6 Nfe3 d8Q Nd5 Nc7 N1e3 Nb5 Nbd7 b8N Qb7 Rf1 g1B Qc7 Ng2 Qcf4 Rg8 Rd1 Rg6 Bc1 Bh8 N5c3 Rd6 Na4 Bc3 Rd4 Ra7 Rb4 Qa8 Rb7 Ne6 Q4e3 Nf8 Rc7 Rb7 Qd2 Rb4 Qd1 Rc4 Be3 Re4 Qc1 Bh2 Bd2 Bhe5 Be3 Bed4 Bf4 Kg8 h7+ Kg7 h8B+ Kh7 Bhe5 g4+ Kh2 g3+ Kh3 Nge3 Bh6 g2 Nc6 g1B Ne7 Ng2 Ng8 Qc6 Kg3 Qb7 Kh3 Qa8 Nf6+
8/Q2rq1r1/b4qPp/1pnn2nN/P1kb1B1n/2B5/1Q2RR2/1QBB1Q1K b - - 0 1 legal: proof: h4 f5 a4 g5 hxg5 a5 e4 d5 exf5 d4 Na3 d3 b4 axb4 cxd3 bxa3 d4 Ra5 d5 Ra8 f4 Kf7 Kf2 b5 d4 c5 g4 e5 Kg2 h6 d6 a2 g6+ Kf6 g7 c4 g5+ Kf7 f6 Ke6 g6 Kd5 f5 e4 f7 c3 f6 e3 d7 e2 Nh3 e1Q Be2 c2 Rf1 Qe8 d8Q+ Nd7 Qb6 Qd8 Rf2 Bc5 f8B Ne7 f7 Ba6 g8Q Nf5 Bd6 Nf8 Bdf4 Ra7 Qg7 Rd7 Qa7 Nh7 f8Q Rg8 Rb1 a1N Rb2 Qb4 Kh1 Qf6 Bh5 Kc4 d5 Nh4 d6 Bd4 Qf1+ Kd5 Bd1 Ng5 Qfe7 Qc5 Qee1 Nb3 Ra2 Qa3 Qb4 Nc5 Qb1 Qb4 Re2 Kc4 Qh8 Rh7 d7 Rgg7 d8B Rd7 Ba5 Rhg7 Rb2 Qa3 Bb4 Qe3 Bc3 Qee7 B1d2 c1N Rc2 N1d3 Bc1 Nce6 Rf2 Nc7 Rce2 Ng2 Bfd2 Nh4 Nf4 Nc5 Nh5 Nd5 Bf4 Qfd6 Qb2 Qef6 Qf8 Qfe7 Qf5 Qdf6 Qfb1
7q/NN3rB1/5PQp/r1B1n1P1/kbbp1Qq1/5B2/n1RN4/1bNK1B1b b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 d4 cxd4 a4 f5 e4 b6 exf5 Nf6 b5 Ng8 Ra3 Bh6 Rb3 Bg7 Rb4 axb4 a5 Bh6 axb6 Bf8 c4 e5 g4 d5 f4 Kd7 c5 d3 b7 d4 c6+ Kc7 f6 Kb6 f7 Ka5 g6 e4 f5 h6 g7 b3 c7 b2 g5 e3 b6 e2 f6 Bg4 c8N Kb4 Qc2 Nc6 b8Q Rh7 b7 Bf3 Qf4 Nge7 b8N Nd5 g8B Ra5 Rh2 Ne5 Nd2 b1B Nd6 Nc3 Nb7 Bh1 Nc6+ Kb5 Ba3 Bb4 f8B Rf7 Bg7 Na2 Bh7 Qb8 Be4 Qh8 Qc3 Ka4 Bf3 Qe8 Na7 Qe6 Nb3 Qg4 Nc1 d2+ Kf2 d1B Ke1 Bd6 Qd3 Bb3 Bc5 Bc4 Qg6 Bf8 B3g2 Be7 Nf3 Bd6 Nd2 Be7 Bb6 Bb4 Bf3 Qc8 Bc5 Qh8 Kf2 e1Q+ Kg1 Qe4 Kf2 Qc6 Ke1 Qd7 Kd1 Qdc8 Ndb3 Qf5 Rc2 Qg4 Nd2
5Q2/1K2N1Pk/5PqQ/N1N3p1/2QNR3/qb1n2Q1/2rBp2R/n3rqqb b - - 0 1 illegal: No possible last move, all moves rejected
bkn3Nr/q1QRpRP1/4QQq1/1P4Nn/brB4Q/5p2/2b3Rb/2KR4 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 h4 Qb6 g4 Bh6 h5 Qb7 f5 Bf8 Bf4 gxf4 g5 Qd5 Ra5 Qf7 Ra1 Qg6 hxg6 Bh6 Nc3 Bg7 Nb1 Bf8 Kd2 Kd8 c4 Kc7 b4 d5 f7 a5 f6 h5 g7 h4 c5 d3 c6 f3 g6 a4 Qe1 a3 Qe4 h3 Kd1 a2 Nd2 d4 Kc1 h2 Nh3 Nd7 b6+ Kb8 b5 Ra4 b7 Rb4 Ng5 Nb6 Qh4 Bf5 Rg1 h1Q Rg2 Qg1 Nde4 Nc8 Rb1 a1Q c7+ Ka7 b8R d2+ Kd1 Qa6 Rb7+ Ka8 Kc2 d1B+ Kc1 Qa7 Bc4 d3 Ra1 Be6 Rb1 Bd5 Ra1 Nh6 g8Q Bg7 f8Q Ng4 f7 Be5 g7 Nf6 Rb1 Nh5 Nf6 Qgb6 Ra1 Ba4 Rb1 Qc6 Ra1 Qe8 Rb1 Nb6 c8Q+ Bb8 Qc5 Nc8 Rd7 Bh2 Qc7 Bb7 Kd2 Bd5 Rd1 Bc6 Kc1 Be4 Qc6+ Kb8 Qe6 Bc6 Qh7 Be4 Ng8 Ba8 Qhg6 Bc2 Qgf6 Ba4 Rd4 Qc6 Qd8 Qe4 f8R Qg6 Rd7 Bc2 Rf7 Ba4 Bb3 d2+ Kb2 Re4 Bc4 Rg4 Rh1 d1B Kc1 Bdc2 Rhd1 Rd4 Bf1 Rb4 Bc4 Qb7 Qa5 Qa7 Qc7+
b1QN3r/1Pb5/q1q4B/1N3N1n/1pk1r3/2qpN1R1/3PbK2/r2QQ1BQ b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 c5 a4 g6 f6 Bb7 Ra3 Nc6 Rb3 Ba6 axb5 Nb8 b6 Bb7 b5 Bc8 Rb4 cxb4 f4 Qc7 h4 Kf7 Bd3 Ke6 f5+ Ke5 f7 Kd6 f6 Qd8 Bf5 gxf5 g4 Nh6 g5 Nc6 h5 Ne5 Na3 Ng8 Nb1 Ng6 hxg6 Bb7 Ke2 Ba6 Ke1 Bc8 c4 Kc5 Qe2 h5 g7 a5 g6 e5 Nh3 d5 Na3 a4 Nf4 d4 Ng2 d3 Rh3 h4 Bb2 f4 Bd4+ Kd6 c5+ Kd5 c6 f3 c7 e4 Bg1 e3 Rg3 h3 Qd1 Bd6 f8N Bb7 f7 Nf6 g8N h2 c8Q h1Q Nh6 e2 Ne6 Qc7 f8B Nh5 Nd8 Qc3 Qh3 Ra7 Qh2 Ra5 g7 Ba8 g8Q+ Ke5 b7 Bc7 b8Q Ra6 Qg4 Kd5 Bg7 Ra5 Kf2 e1R Qbc8 Re2+ Kf1 f2 Qe1 Re7 Nc2 a3 b6 a2 b7 a1Q Qgd1 Kc4 Nf5 Ra6 Bh6 Qa5 Nf4 Qc6 Ng2 Re4 Ncd4 Qab6 Nb5 Ra1 Qh1 Qa7 Nf4 Qaa6 Kg2 f1B+ Kf2 Be2 Ng2 Kd5 Nge3+ Kc5 Ng2 Kc4 Nge3+
N3QR2/NP2KNRP/Bnp5/2kRp2r/1N1r2q1/4n1q1/R1rn3Q/3b3q b - - 0 1 legal: proof: c4 b5 f4 f5 a4 d5 cxd5 Qd6 axb5 Qd7 e4 fxe4 g3 Qd8 f5 h6 b3 e6 Bb2 Be7 Bf6 Bd6 Bg5 Bf4 gxf4 hxg5 Kf2 Ke7 Ke3 Kd6 Kd4 a5 h4 g4 b6 g5 b7 e3 f6 c6 h5 e2 h6 e1Q f7 a4 f8R a3 h7 g3 b4 a2 b5 g2 b6 g4 f5 g3 f6 Bd7 f7 Bc8 Na3 Nd7 b8Q+ Qc7 b7 Ra5 Nc2 Ra8 Nf3 g1N Ba6 g2 Qe2 Nh3 Rg1 Ne7 Nb4 Nb6 d3 Bd7 Qe8 e5+ Ke4 Nec8 Nd4 Kc5 d6 Ra7 Nb5 Bg4 d7 Ne7 d8R Qg3 Qd2 Ra8 Na7 Nf5 Qf4 Qd7 d4+ Kd6 d5 Bd1 Qh6+ Kc5 d6 Ne3 Qh5 Qc8 d7 Rg8 Qe2 Rg5 Qf2 Rh5 Qe2 Ned5 Qd2 Ng5+ Kf5 Ne3+ Kf6 Nf3 Ke7 Rh4 Qe2 Nd2 Qh5 Rd4 Qh2 Bb3 Rg8 Bc2 f8N Bd1 Rf1 g1R Rg7 Rh1 Rf2 Bh5 Rd1 a1Q Rg2 Ndc4 Ra2 Nd2 Rf1 Qb1 Rf6 Bd1 Rd6 Qc7 Rc8 Qb8 d8N Qe4 Nf7 Qd5 Qg1 Rh5 Qh2 Qh1 Rcd8 Qc8 Rf6 Na4 Rf2 Qcg4 Ne6+ Kb6 Nc7 Kc5 Rf6 Nb6 Rd7 Rd8 Na8 Rc4 Nh6 Rc3 Rf8 Rc2 Rd3 Rd4 Nf7 Rf4 Rd7 Rd4 Rd5+
q1N1K3/2Q5/Q2rBrnR/6P1/p1bNkQbB/P1B4b/2b2Bp1/bQ3r2 b - - 0 1 legal: proof: d4 c5 c4 e5 b4 f5 bxc5 d5 cxd5 Kf7 g4 fxg4 d6 Ke8 d5 Bd7 Bg5 Be6 Bc1 Bc8 h3 g5 a3 g3 Ra2 Nd7 Rd2 Ndf6 Rd4 exd4 h4 g4 Nf3 Ne4 Ng1 Ng5 hxg5 Bg7 Nh3 Bh6 Ng1 Bf8 Kd2 Kf7 Kd3 Kg6 Kc4 Kf5 Kb5 h5 e4+ Ke5 d7 a5 d6 h4 f4+ Ke6 e5 Kf5 e6 b6 Kc6 d3 e7 h3 e8Q h2 Be3 a4 Bf2 b5 Qee2 b4 Nf3 g2 Nbd2 g1R Bh4 b3 Qb1 b2 Ne4 g3 Nd4+ Kg6 Bh3 d2 Be6 d1B Qa6 Qa5 d8B Rf1 d7 Bg7 Bf6 Rh6 d8B Bg4 Bb6 Ne7+ Kd6 Bd7 c6 Rf8 c7 Bh3 Be5 Rf6 c8Q Bb5 Qc6 Bc4 Kd7 Qd5+ Qd6 Qa8 Qc7 Bh8 Nc6 Bg4 Bf2 Bg7 Nd4 Bh8 Qa2 b1B Nd6 Bc2 Qb1 Bg7 Nc8 Bh3 Rg1 h1B Ke8 Bf3 Rh1 g2 Rh2 Bfg4 f5+ Kh7 Rh1 Ng6 Rh2 Rf7 f6 Rd7 f7 Rd6 Nf3 Bh8 Bc3 Be5 Bb4 Ba1 f8Q+ Ne7 Bhg3 Kg6 Bf7+ Kf5 Be6+ Ke4 Nd4 Rg6 Bc3 Rh6 Bfe1 Rg6 Qf2 Rf6 Qd2 Ng6 Bef2 Bh5 Rh1 Bf5 Rh3 Bf3 Rh6 Bh3 Bh4 Bfg4 Qf4+
2R1qB2/2Rqqp2/Q1Pn3r/p1B2q2/2RP1N1k/1q5n/B2Q1R2/2B2Kbb b - - 0 1 legal: proof: b4 b5 f4 d5 g4 a5 a4 h5 gxh5 e5 Na3 d4 axb5 e4 b6 Ra7 Nb5 c6 e3 Re7 Qe2 dxe3 Qd1 Re5 fxe5 Kd7 Na7 Ke8 b5 c5 Nc6 Qg5 Nb4 cxb4 Ba3 Qf6 Bc1 Qd8 d4 Ke7 Bb2 g5 c4 e2 h4 b3 e6 Kf6 b7 g4 h6 g3 h5 Kg5 b6 g2 e7 Qd6 e8Q Bf5 c5 Bh3 c6 Ne7 h7 Ng6 h6 Qd7 Rc1 Kh4 Rh2 Bd6 Qc8 Na6 b8B Nc5 b7 Nf4 Ba7 Bc7 b8R Nb7 Ba3 b2 B7c5 b1Q Qd2 Be5 Kf2 Nd6 Qa6 Qc2 Rb7 e3+ Kf3 e1Q Ne2 g1Q Rf2 Qa4 Rc7 Qg6 Rc3 Bf5 Bc1 Nh3 Bg2 Bh2 Nf4 e2 Bh1 Re8 h8R Re6 h7 Bg1 Rhc8 Be4+ Ke3 Qb4 h8B Qf5 Bg7 Rh6 Bf8 Bd5 Be4 Qb3 Bb1 Bh1 Ba2 Qf6 B1a3 Qeb1 Bc1 Qbf5 Qdd3 Qfd8 Rc4 Q8e8+ Kd2 Qg5 Qc3 e1Q+ Kd3 Q1e7 Kd2 Ne4+ Ke2 Nd6+ Kf1 Qgf5 Qd2
3K2B1/2p1QB2/nQ1Q1P2/2p1Q2N/1Rq4k/1nPqn2N/1n2br2/r1B1n2B b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 a4 b5 axb5 f5 exf5 Bh6 Ba3 Bg7 Bc1 Bf8 Ke2 a4 Ra3 d6 Rc3 Bg7 Ke1 Bd4 Rc4 Bb6 Rc5 Ba5 bxa5 dxc5 Ke2 Kf7 Kf3 Kf6 Kg4 e5 d4 h6 f4 a3 b6 a2 c3 a1Q b7 e4 d5 e3 d6 e2 a6 e1N d7 h3 a7 h2 Qd4+ Kf7 f6 Kg6 f7 Qf8 Qe5 Qd8 f8Q Ne7 Nd2 Na6 b8Q Nf5 Qfe7 Qa2 Nh3 Nd4 Ne4 Nb3 Ng3 Rf8 Bc4 h5+ Kh4 Rf5 Qb6+ Rf6 Rg1 h1N Bf7+ Kh6 Rf1 Nf2 Rh1 Ng4 f5+ Ne3 Rg1 Qh8 d8Q Qh7 Qdd6 Be6 Rf1 Bc4 Rf4 Be2 Rb4 Qa4 Ne4 Qb5 g4 Qd3 Ng3 Qg8 Be8 Qgc4 Bf7 Kh7 Kg5 h4 Nf4 h3 Ngh5 h2 Nh3 Rc8 a8B h1N Bad5 Nf2 Bh1 Ra8 Qg3 Nfd1 Qge5 Re6 f6 Nd4 Kf4 Nb2 g5 Ra7 g6+ Kh6 g7 Nb3+ Qed4 Re5 g8B Rg5 Qde4 Rg2 Ke5 Rf2 Qed5 Ra8 Ke6 Ra7 Kd7 Ra8 Qd4 Ra7 Ng1 Kg5 Q4e5+ Kh4 Kc8 Nb8 Kd8 Ra1 Nh3 Na6 Qa7 Qcd4 Qb8 Q4c4 Qb6
2kn2QR/2N1n3/rQ4Q1/1R3q2/q1n3Q1/4pPNp/nB3PNK/2b1Nq1b b - - 0 1 legal: proof: c4 b5 h4 g5 a4 gxh4 axb5 d5 cxd5 a5 Ra2 Ra6 Ra4 Rf6 Ra1 Rf3 exf3 f6 Bd3 f5 Be4 fxe4 Kf1 Kd7 g4 c5 Kg2 h5 b4 e5 d4 a4 d6 c4 d5 a3 b6 e3 g5 h3+ Kh2 a2 g6 c3 g7 h4 b5 c2 b7 e2 b6 e1N Qd3 e4 Ne2 e3 Na3 Rh7 Qg6 Rh6 Ng3 Nc6 b8Q Qf6 b7 Qf5 Bb2 c1N Rb1 a1Q Nc2 Nge7 g8Q Ned3 Ne1 Nde5 Q8g7 Kd8 d7 Qa4 Qg8 Nc4 Qf4 Na2 b8N Ba6 Qfg4 Kc7 d8N Kc8 Ne6 Nd8 d6 Bb5 Kg1 h2+ Kg2 Bg7 Nf4 Bc3 Kh3 Bd2 Na6 Bc1 Nc7 Bd7 Ba3 Be6 Rb5 Bd7 Bb2 Be6 Rg1 Bd7 Rg2 h1Q+ Rh2 Qg1 Rh1 Qf1+ Kh2 Qh5 Q4g5 Bh3 Qg4+ Qf5 Nfg2 Nb6 Nf4 Bg2 d7+ Kb8 Rg1 Bh1 Nfg2 h3 Q8e6 Ndc6 d8Q+ Kb7 Qdg8 Nd8 Qc6+ Kc8 Qcf6 Nc4 Qb6 Qd3 Nc2 Qe2 Rd1 Qd3 Nce1 Qf1 Rd7 Nd5 Rh7 Ne7 Q6f7 Re6 Rh8 Rc6 Qfg6 Rd6 Qbd4 Ra6 Qdb6
nKNqRrR1/4R2Q/2N2k2/1bB2rQ1/2bq2P1/2Pp4/rR1bQ1p1/bQ6 b - - 0 1 legal: proof: e4 c5 f4 b5 d4 cxd4 a4 g5 axb5 d3 fxg5 Qb6 Bd2 Qc7 Bc1 Qd8 g3 h5 Ra2 d5 Ra4 d4 Ra6 h4 Bd2 h3 Bc1 Nd7 Bg2 Ndf6 Ra1 Nd5 exd5 hxg2 Kd2 a5 b4 e5 h4 Ke7 d6+ Ke6 d7 f5 h5 a4 h6 a3 b6 e4 b7 a2 b8R f4 b5 f3 h7 f2 c3 f1Q g4 Bb4 b6 Be7 g6 Qdf8 d8Q Q1f6 b7 Qe5 g7 Bc5 Nf3 Ra5 Ba3 Ba7 Re1 Ne7 Qc2 Qd5 Ne5 Bd7 Ra8 Bb6 b8Q Nc8 Qg5 Bc7 Be7 Nb6 Na3 Qe8 Bd6 Rf8 Rab1 a1B Nb5 Ra3 h8R Ra2 Na7 Qe7 Bc5 e3+ Kd1 d2 Ke2 d1B+ Kd3 Qc4+ Ke4 e2 Rb3 Ba4 Nec6 Bf4 Qbe5+ Kf7 Qb1 Bb5 Re8 Bd2 Rb2 Qd8 Nc8 d3+ Kf5 Qb4 Qee3 Na8 Ke5 Bb3 Qe4 Qda5 Kd6 Bd5 Qh7 Qd4 Qe3 Kf6 g8Q Bdc4+ Qd5 Nb6 Kc7 Na8+ Kb8 Qd8 Qee4 Qd7 Rg8 Qd8 Rh1 e1R Rh3 Ba6 Qe2 Rf1 Rhe3 Bab5 R3e7 Rf2 Qdh5 Rf5 Qg5+
3B2Q1/1R1nnR1n/2NNn1b1/1q1Q4/3P1RP1/Q2q1QKp/4rp2/2Rrr1k1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 Bg2 Bd6 Bf3 Bg3 hxg3 Bf5 Bg2 Bc8 f4 gxf4 Bf3 exf3 Kf2 Ke7 b4 Kd6 e4 Ke5 d6 Kd4 b6 f5 b5 c5 d3 a5 d7 h5 e5 a4 b7 a3 b6 c4 g5 h4 e6 c3 g4 h3 e7 c2 e8R a2 g6 Ne7 Ba3 c1R Qe2 Rd1 g7 Ra5 g8Q Re5 Qd2 Ree1 Qf8 Rh6 Qf7 Rhe6 Nc3 R6e4 Rc1 a1N Qda2 Nb3 Qd2 Nc5 Rf8 Ne6 Qb2 Qe8 d8Q+ Nd7 b8R Bb7 Rg8 R4e3 Rg7 Be4 Qc8 Qd8 b7 Qb6 Qc6 Qb5 Qa6 Nd5 Qb3 N5f6 Rf8 Nh7 Nge2+ Ke5 Ng3 Kd4 Rf1 R1e2+ Kg1 f2+ Kh2 f3 b8Q f4 Na2 Bg6 Be7 Re5 Qaa3 Ke3 Ne4 Ree1 d4+ Ke2 Rh1 f1Q Nb4 f2 Nd6 f3 Kg3 Qd3 Qf6 Ke3 Qd8 Qe2 Qd5 f1N+ Kh4 Kf2 Rgf7 Ng3 Nc6 Re4 Qc8 Kg2 Bd8 f2 Rf1 Qb2 Qf3+ Kh2 Rf4 R4e2 R8f7 Qbb5 Qb8 Ne4 Rg1 Nef6 Rb1 Ng8 Qba8 Qa6 Rb7 Qab5 Qc8 Ne7 Qca8 Rdd2 Qb8 Rb1 Rc1 Rd1 Qc8 Kg1 Kg3 Ra1 Bb6 Rde1 Qg8 Rb1 Bd8 Ra1 Rc2 Rad1 Rc1
q3bK1n/1rNr1R2/B4b2/1qP2br1/2Q1Q3/1pp1PB2/1Qb4B/QB3k1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 bxc5 exf4 a4 b4 c4 d5 c6 Na6 c5 Nc7 Ra2 Nh6 Rc2 Nb5 axb5 Ng8 Rc4 dxc4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5+ Kh5 Kd4 g4 f5 b6 a5 b7 f3 b8Q a4 c7 f4 g6 a3 g5 f2 g7 f3 g6 c3 Bg2 f1Q Nh3 f2 Bf3 a2 Na3 Nh6 g8B a1R g7 Ra7 Ba2 Nf7 g8Q Be7 Bb1 Bf5 c8B Rd7 Ba6 Bf6 Nb5+ Kc4 d4 b3 Qf4 Qa8 Qe4 h6 Qgg4 Rb8 Bf4 Nh8 e3 Rbb7 Bh2 Qe2 Qgf4 f1B Nf2 Ra2 Rg1 Qd3 Nh1 Rg2 Qd2 Be2 Rf1 Bd1 Qb2 Bc2 Qc7 Qe2 Qa5 Rg8 Qaa1 Rg5+ Kh4 h5 Nc7+ Kb4 Rf2 Qb5 Rf1 Kc4 d5+ Bd4 Qe6 Kd3 d6 Bf6 Qc4+ Kd2 Rf2+ Ke1 Qe4 Rh7 d7 Rf7 d8Q Rd7 Rd2 Kf1 Qg8 Bh7 Rd5 Bg6 Rf5 Be8 Kh3 h4 Qf7 Rh5 Kg4 h3 Kf4 Rg5 Qg8 Bd8 Ke5 Bf6+ Ke6 Be7 Bg1 h2 Rf7 Bd8 Qg7 Be7 Qgd4 Bf6 Qc4+ Ke1 Ng3 h1B Bh2 Kf2 Qcd5 Bg2 Nh1+ Kf1 Qdc4+ Rd3 Qed5 Bh3+ Kd6 Bf5 Qe4 Bd4 Ke7 Bf6+ Kf8 Rd1 Qde6 Rd7 Q6c4+
2r1n1b1/1B1RR2p/N2b3N/1p1b1R1K/N1bR3n/2Pq2NP/1nq4k/3QQ3 b - - 0 1 legal: proof: f4 b5 d4 e5 dxe5 c6 b4 Qf6 e6 Qe7 a4 Nh6 axb5 Qd8 b6 Ng8 b5 cxb5 e4 a5 Qe2 Ke7 Qd1 Kf6 e7 Ke6 e5 Ra7 Kd2 Kd5 e6 Kc5 Ke1 Kc6 Ba3 g5 Bb4 Rc7 Bd2 Kd6 Nc3 Rc5 Nb1 Re5+ fxe5+ Kc6 Bf4 gxf4 Ke2 d5 Kf3 f5 e8Q+ Nd7 g4 d4 h3 Kd5 e7 a4 b7 a3 b8N d3 c3 a2 g5 d2 g6 Bb7 g7 Ngf6 e6 Ke5+ Kf2 f3 Kg3 f2 Kh4 Kf4 g8N Bd5 Rh2 Ne5 Bg2 f1B Na3 Bfc4 Nh6 Qd7 Rb1 a1Q Rb4 Qc1 Na6 Qc2 Be4 Bb3 Nc4 Qd8 Nb2 Rg8 Qg6 Ne8 Rf2+ Nf3+ Kh5 Rh8 Qe1 d1N Na4 Nb2 Rd4 Ba2 Qf6 Kg3 Qd1 f4 Qe5 Nh4 Rf3+ Kh2 Ne2 Qa8 Ng3 Qd8 Rf1 Bab3 Bf3 Qd7 Qee1 Rg8 Bh1 f3 Bg2 f2 Bf3 Nc7 e8R Bd6 Rd8 Ne8 e7 Rf8 Bg2 Bg8 Bb7 Ba2 Rc8 Bad5 Rc7 Qd8 Rg1 f1B Rd7 Bfc4 Rf1 Qc8 Rf5 Qc5 Rd3 Qe3 Rd4 Qed3 Qe6 Nc7 Qee1 Ra8 e8R Rc8 Ree4 Ne8 Ree7
K1RBr2B/nRB5/Np1brPp1/nR4Pn/5bQ1/6bn/B4kn1/1R2Q3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 h4 g6 e4 b6 b4 Nh6 d4 Nf7 b5 Nh6 d6 Ng8 d5 Kf7 h5 Qd7 h6 Qe6 Nd2 Qe5 d7 Qg7 hxg7 Bb7 d6 Bd5 exd5 a6 Rh3 axb5 Ne4 fxe4 Rh1 b4 Kd2 Kf6 Ke3 Kf5 Kd4 h5 d8R e3 g4+ Kf4 a4 h4 g5 h3 d7 b3 d6 e5+ Kd5 c5 a5 b2 a6 b1N a7 h2 Ra5 c4 Qe1 c3 Rb5 c2 Ne2+ Kf3 Ng3 e2 Bb2 c1B Rc8 e4 d8B e3 d7 Bd6 Bc7 Nc6 d8B Na5 Ne4 Na3 Nc5 Rb8 Rg1 h1N a8Q Bd2 Na6 Nf6+ Kd4+ Rb7 g8R Nh5 Rg7 Re8 Kd5 Rb8 Qc6 Re6 Qd7 Bc1 Re7 Ra8 Bh8 Rb8 Qb4 e1B Bc4 e2 Ba2 Bcf4 Rf1 Kg2 f3 Bf2 Rb1 B2g3 Qe1 Nf2 Rf7 Nh3 Rg7 Bfe5 f4 Kf3 f5 Bef4 f6 Ra8 Qd2 e1N Rf7 Ng2 Qe1 N5c4 Kc6 Rb8 Rd5 Nb5 Rg7 Ra8 Kb7 Na7 Rh7 Re7 Rdb5 Re6 Qd1+ Kf2 Re7 Re3 Q7g4 Re6 Bb8 Re1 Rc6 Rh1 Rf7 Bde5 Be7 Re1 Rh7 Re2 Qe1+ Ke3 Bbd6 Re8 Rc8 Na5+ Kb8 Bb2 Be5 Ba3 Bd8 Bf8 Rb7 Bb4 Bec7 Bbd6 Qh1 Kf2 Ka8 R2e6 Qe1+
RQ1k3n/2R2b2/Nb6/4n1Pp/2qn1bqQ/4pR1N/n2Q1B1P/KQ1R3n b - - 0 1 illegal: No possible last move, all moves rejected
qRn4B/Qq5q/pQ2K2B/Nb3pB1/Q4Pbk/2n1P2n/2B1R3/Q3b1n1 b - - 0 1 illegal: No possible last move, all moves rejected
rq2QB2/Rn2q1BK/1b3Qr1/2P1pk1P/Rr5R/2p3p1/4nN2/B1b2B1R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 b5 gxh5 Nh6 c4 bxc4 b5 Ng8 Na3 Ra6 Nf3 Ra7 Ng1 Ra8 d3 c5 Bd2 c3 Bh3 c4 Nc2 Bb7 Be3 Bd5 Nb4 axb4 Bf1 c2 Bg5 c3 Bc1 Bc4 dxc4 Qa5 Qd6 Qb6 Qd1 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 d5 a4 d4 h4 g6 b6 e6 h6 b3 b7 b2 c5 b1Q a5 d3 a6 d2 h7 Qc8 a7 Qb2 Nh3 Qd8 Ra4 Qb3 Qf3 d1R Bb2 Rb1 Ba1 Nc6 b8Q Qe7 Qe8 c1B+ Kg4 g5 Kh5 Ke5 Kg6 g4 f6 g3 f7 Nd4 Qf6+ Ke4 f4 e5 f5 Qb8 h5 Rb4 Nf2+ Kf4 Qec6 Ne2 Qe8 Bh6 f8R Bg5 Rf7 Nh6 Rg7 Rf8 h8B Bh4 Kh7 Rg8 Rf7 Rg6 Bg7 Qed8 Rd7 Qe7 Rd8 Nf7 Rd4+ Kf3 Re4 Nd8 Rd4 Bhg5 Rdh4 Ke3 Qd6 Kf3 f6 Nb7 f7 Bf6 f8B Bfg5 R4h2 Kf4 Rh4+ Kf5 Qdc6 Qd7 Qa6 Bd8 Qd6 Bb6 Qc6 Qbd8 Qd6 Q7e7 Qdc6 Rb8 a8R Rc8 R8a6 Ra8 Ra7 Qb8 Qf6+
2B1k1br/KR1RBr2/6P1/nb1Bp1Q1/Q4Qpn/7P/BNQ3p1/q1q1b3 b - - 0 1 legal: proof: e4 a5 g4 d5 exd5 h5 b4 hxg4 bxa5 c5 Na3 Nh6 Nc4 Ng8 f4 g5 Nb2 g3 Nd3 g4 Nb4 cxb4 Bg2 Qb6 Bh3 Qg6 Bf1 Qg5 fxg5 Be6 Be2 Bd7 Bf1 Bc8 Ke2 f5 Ke3 b5 Kd4 e6 c4 g2 a4 f4 h3 b3 c5 b4 c6 f3 c7 b2 d6 b1B Kc5 f2 Kb6 e5 d4 b3 d7+ Ke7 d8Q+ Kf7 g6+ Kg7 a6 b2 a7 Ba6 c8B Bbd3 d5 Bd6 a5 Rh4 Bg5 Be4 Qc2 Rh7 Rd1 Bc4 a6 Ne7 Ne2 Ng8 Be7 Rh6 Nc1 Nc6 Nd3 b1Q+ Nb2 Bb5 Bc4 f1Q Ba2 Bb4 d6 Bd5 d7 Qc1 Rg1 Rh7 Qf8+ Kh8 d8Q Na5 Qff5 Kg7 Qf4 Nh6 Rd3 Bf7 Rd7 Nf5 Rb7 Rb8 a8B Be1 Ka7 Nh4 Rd7 Bg8 B8d5 Qa1 Rh1 Qc4 Rf1 Rh8 Rf3 Rb6 Rb3 Rf6 Rb4 Rf7 Rb3 Ba4 Rbb7 Qc3 Ka8 Bb5 a7 Qa3 Kb8 Qe3 a8Q Qec1 Ka7 Nf3 Bg5 Nh4 Qdf6+ Kf8 Q6f5 Bc3 Be7+ Ke8 Q5g5 Be1 Kb6 Nc6 Qaa4 Na5 Ka7
n3Q1R1/6n1/R1QKP1qP/2p2B1B/p1r1q1pB/4n3/1NQ1Q3/r1b1B1bk b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 hxg4 d6 Rh4 Nh3 Rh7 Ng1 Rh8 e4 Be6 d4 Bc8 d5 Bf5 Nc3 Ne7 Nce2 Ng8 Nd4 exd4 f3 Rh5 e5 Be4 fxe4 Rh8 Kf2 Kd7 Kg3 c5 Kf4 f5 h4 a5 b4 g3 e6+ Ke8 Ke5 g5 b6 f4 d7+ Ke7 h5 d3 b5 d2 h6 g2 b7 f3 b6 f2 Bd3 f1N Nh3 g1B Nf2 Ra7 Qe2 d1Q Bd2 Nf6 Be1 Na6 b8Q Qc2 b7 Nc7 Qa8 Bg7 b8Q Re8 Qb1 Ne3 Qc6 Na8 Nd1 Qb6 Nb2 g4 Rh5 Rb8 Rg5 Qc4 Qbc2 Ne8+ Kf4 Kf6 d6 Qba6 e7 Rb4 d8B Qd4 Ra3 Rc4 Ra1 Bh8 Rg8 Ng7 e8B+ Ke6 Bh5 Qd5 Kg3 Ke5 d7 Kd4 e5 Qe4 Bh4 Qb6 Qb5 Qbg6 e6 Ra6 d8Q+ Ke5 Be7 Kf5 Qde8 Ra7 Kh4 Kf4 Qbc6 Qg2 Qec8 Ne8 Bf5 Qe4 Na4 Bb2 Ra2 Ng7 Q8e8 Bc1 Nb2 Qf7 Qed3 Kf3 Kg5 Bf2 Qdd1+ Kg2 Qde2 Kh1 Ra4 Bg1 Bd8 Qe7+ Kg6 Qc7 Bdh4 Ra6 Kf6 Qe7+ Kg6 Qg5+ Kf7 Qg6+ Ke7 Rb6 Nd3 Rb1 Nb2 Ra1 Kd7 Qf6 Kd6 Qg6 Rb4 a4 Rb6 Qf3 Ra6 Qd5+ Ke7 Qe4 Kd6
1n6/1qB1pP1k/1NQp4/3qn1nK/B5QQ/b1P3R1/p1QBr2r/1B4Rb b - - 0 1 legal: proof: e4 c5 d4 cxd4 f4 f5 exf5 b5 a4 Bb7 axb5 Bc8 g4 h5 g5 g6 Nc3 Ba6 Ne4 Bc8 Nf2 Ba6 fxg6 Bc8 Ng4 hxg4 f5 Rh7 Ra3 Rh6 Ra1 Rh8 Kf2 a5 Kg3 d6 b4 a4 h4 d3 c3 a3 h5 d2 Kh4 g3 f6 g2 g7 Kf7 h6 Kg6 b6 a2 h7 Bd7 b5 Bf5 f7 Nc6 b7 Bd3 b8Q Ra5 b6 Rc5 b7 Rd5 Qc2 d1Q Nh3 g1N Nf4+ Kf5 g6 Be4 Qa8 Kf6 b8B Qd7 Rh3 Na5 Bd2 Nc4 Bc7 Bh1 Rd3 Ne5 Qc6 Ngf3+ Kh5 Ng5+ Be2 Rb5 Nd5+ Kf5 Nb6 Rb2 Rc1 Qc8 Bf3 Qb7 Bg4+ Kf6 Ra1 Qf3 Rg1 Qd5 Bd1 Kf5 Qb1 Kf6 Ba4 Kf5 Qc2 Nf6+ Kh6 Nfd7 Kh5 Kf6 g8Q Bh6 g7 Nb8 Qc8 Rb4 Qg4 Re4 Kh4 Re2 Kh5 Rf8 h8Q Rc8 Qh7 Rh8 Qhe4 Rh7 g8B Rh8 Bh7 Kg7 Bf5 Rh7 Bd7 Rh8 Qec4 Kh7 Qh4 Nh3 Qb4 Be3 Qbc4 Ng5 Qcg4 Bc5 Be6 Ba3 Bc8 Rg8 Bf5+ Rg6 Be6 Rf6 Bd7 Rff2 Bf5+ Kh8 Bh7 Rh2 Rf3 Nh3 Qb2 Qa8 Bb1 Ng5 Rd3 Kh7 Qc2 Qb7 Rdg3+
1nk2KQR/1q1pQ1rP/1r2b3/2N3qp/PR1n2BR/3Bp1q1/6B1/B1R1b3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Rh7 Bg5 Rh6 Bc1 Rh8 gxh5 g6 h4 Qb6 h6 Qa6 h7 Qa5 h5 Qd8 h6 Bg7 Nd2 Qc7 Ne4 Qd8 Ng3 Bf8 Nh5 gxh5 Ke2 e5 Ke3 b5 Ke4 b3 Kd5 e4 c4 b4 f4 e3 a4 b2 f6 b1Q f5 b3 c6 b2 c7 Bc5 f7+ Ke7 f8R Qe8 Qg4 Qd8 Bg2 Nc6 Ne2 Qc2 Ng3 b1Q Bb2 Qe2 Ne4 Ne5 Rh4 Bb4 c5 Qh1 c6 Qee1 Rc1 Bd2 Nc5 Qh3 Ba1 Ba6 c8B Ra7 c7 Nc6 Bb7 Qeh1 c8B Be1 Rf7+ Ke8 Kd6 Qg5 f6 Nb8 Bbf3 Bc4 Ba6 Be6 Bd3 Kd8 Re7 Ra5 f7 Kc8 Qc4 Rb5 Bg4 Rb1 Qe4 Qg3+ Qe5 Qf6 Re8+ Qd8 f8Q Ne7 Qg8 Nec6 Rf8 Rb7 Rf4 Nd4 Qf6 Rb5 Qe7 Rb3 Qg6 Rg8 h8R Rg7 h7 Qf1 Qgf7 Qff3 Qg8 Qb7 Ke5 Rb6 Kf6 Rf7+ Kg6 Rf5 Kg7 Rf6 Qee8 Rg6+ Kf8 Rg7 Re4 Kc7 Rf4 Qg5 Qe7 Kc8 Re4 Ndc6 Rec4 Nd4 Rb4
Q2qb1R1/pr1np2k/3N2p1/2q2NRR/K1NP1Q2/R2P2r1/1b3n2/1nB4N b - - 0 1 legal: proof: e4 f5 exf5 d5 a4 b5 axb5 d4 c3 Bb7 cxd4 Bc8 g4 g5 f4 gxf4 g5 Ba6 Ke2 Bb7 Ke1 Bc8 g6 Bd7 g7 Nf6 Bc4 Bc8 Ba2 Ng8 Bf7+ Kd7 Bg6 hxg6 Ke2 Ke8 Kf2 Kd7 Ke1 Ke8 h4 Kf7 b4 c5 f6 f3 h5 c4 b6 c3 b5 c2 b7 Be6 b6 Qd7 h6 Qe8 h7 Na6 b8Q Qd7 d3 f2+ Kd2 f1Q Kc3 Bd5 b7 Qe1+ Nd2 Nc5 Kb4 Bc6 Ne2 Qd8 Qf4 Nh6 b8R Ng4 g8N Nd7 Ra3 Bh6 Ng3 Qe5 Rh5 Nf2 Rb5 Rb8 Nc4 Rb7 Qh1 Qc5+ Ka4 Kf8 f7 Kg7 f8R Bg5 Be3 c1N Nh6 Nb3 Bc1 Nd2 Qg2 Nb1 Nh1 Qdb6 Re8 Qd8 Qgf3 Rf8 h8N Kh7 N8f7 Rh8 Nfd6 Rf8 Qg2 Rf5 Qe3 Rf3 Rg8 Rg3 Qee4 Bd2 Qf4 Bc3 Qgf3 Bb2 Qg2 Bd5 Ra5 Bf7 Rg5 Rb6 Qa8 Be8 Rb5 Rb7 Rh5 Qcb6 Rbg5 Qc5 Nhf5+
1Qrn2k1/1B4p1/2QQr2P/q2bp3/4Rb2/Nb1P1r1p/QB1N3q/KN4N1 b - - 0 1 illegal: No proof kernel
2r5/1K1pQrpn/P4NP1/1kN2QN1/NB1b1Rp1/3r4/nBq1q1B1/5B1n b - - 0 1 legal: proof: d4 a5 c4 f5 e4 b5 exf5 a4 b3 c5 dxc5 axb3 a4 h5 g4 b4 g5 Qc7 Qe2 Ba6 Qd1 Bb5 cxb5 Qd6 Ra2 Qh6 Rd2 Qb6 Rd4 Qd8 Rg4 hxg4 Kd2 e5 Ke3 b2 h4 e4 Kd4 b3 f4 e3 f6 e2 h5 e1Q a5 Rh7 f5 Rh8 g6 Qb6 h6 Qa7 b6 Qc7 h7 Na6 b7 Rb8 f7+ Kd8 c6 Rc8 b8N Qb7 c7+ Ke7 f6+ Kd6 Qe2 Nb4 Nf3 Na2 Na6 Kc6 Ng5 Bb4 f8B Qb8 f7 Qb7 Nc5 Qa6 Nc3 b1N N3a4 b2 Qe7 Qae2 a6 Kb5 Kd5 Qc3 Kd6 Ba5 Nge4 Bb4 Nf6 Qc2 Rh2 Be1 Rf2 Nd2 Rf4 b1R Ba3 Rd1 Bb2 Ra8 c8B Ne4+ Kc7 Ng3 Bb7 Nh1 Be4 Rd3 Kb7 Bf2 Beg2 Bd4 Bc1 Nh6 Bb2 Rg8 h8N Rd8 Qd6 Rc8 Be7 Rge8 f8Q Ng8 Nf7 Red8 Qe6 Re8 Bd6 Re7 Ng5 Rf7 Qd8 Qc4 Qde7 Qcc2 Ne8 Nf6 Qf5 Nh7 Nf6 Nb4 Bc7 Na2 Ba5 Ra8 Bac3 Rc8 Bb4
5Q1R/N1p1Rp1N/Q1P4k/1rn4q/bPb1q2R/Kp1n1b1N/R1BN3q/8 b - - 0 1 legal: proof: d4 e5 dxe5 g5 f4 h6 g4 Qe7 Be3 Qd8 Bf2 Qe7 Bh4 gxf4 g5 Qf6 g6 Qd8 Bg5 hxg5 a3 b5 Kd2 a5 Qc1 b4 Qd1 a4 Ke1 Ra5 Qd4 b3 Qd1 Bb4+ axb4 a3 Qd5 a2 Qd1 Ra3 bxa3 Qe7 Qd6 Qf6 Qd1 Qd8 Kd2 Kf8 Kc1 Kg7 Kb2 d5 c4 g4 h4 d4 e4 f3 a4 f2 h5 g3 c5 g2 a5 d3 e6 d2 a6 Qf8 e5 Qe7 c6 Qf6 h6+ Kf8 h7 Kg7 e7 Be6 e8Q Qf3 a7 Qf6 a8N Qf4 Nh3 g1Q Bd3 f1B Qe2 d1B Nb6 Bc4 e6 Nh6 e7 Ng4 Bc2 Qgh2 Nd2 Qe4 Nc8 Ne5 Ka3 Kh6 g7 Na6 Qf8 Nd3 e8R Nac5 Re7 Bb5 Na7 Ba4 Nf2 Qh5 Rh4 Rg8 Nh3 Rh8 Qg4 Bf3 Qgc8 B1e2 Qa6 Bf1 Qfc8 Rd8 Qb8 Rd5 Qf8 B1e2 Rb1 Rg5 Rb2 a1Q+ Ra2 Qh1 g8N+ Kg6 h8R Qh2 Qfc8 Rf5 Nf6 Re5 Rg8+ Kh6 Rh8+ Qh7 Rb2 Ne1 Qe6 Nb7 Rd7 Rb5 Qe7 Nc5 Ra2 Bc4 Qe8 Ned3 Re7 Kg7 Qd8 Qe4 Nh7 Kh6 Qf8+
qBQQ3B/PqN5/1B1N2n1/Q1Pn2b1/2k2pK1/1r1pp1R1/n5B1/qQ1r4 b - - 0 1 legal: proof: f4 f5 b4 a5 e4 axb4 d4 g5 a3 c5 dxc5 Ra7 exf5 Bh6 f6 Ra8 f5 Bf8 g4 b6 a4 Ra5 Ra3 Nh6 Rf3 Ba6 Rf4 gxf4 h3 Be2 g5 Bg4 hxg4 Ng8 Qd3 Ra6 Qd1 Ra8 Ke2 Kf7 Kf3 d5 c4 h5 a5 e5 a6 b5 a7 h4 g6+ Ke8 c6 b3 g7 Kf7 c7 h3 c8Q d4 g5 d3 Kg4 e4 Bb2 b4 Nc3 h2 Nge2 e3 Nd4 Qc7 Ne6 Nc6 Qb1 Nge7 Nb5 Rb8 Bg2 Nd5 Rg1 Qb7 Nec7 h1Q c5 Nce7 Nd6+ Kg8 Bc3 b2 Be1 b3 Ba5 Ng6 Bb6 Qa8 Qa6 Be7 f7+ Kh7 f8B Kg8 f6 Rb7 Nc8 Kf7 Qa5 Bd8 Bd6 Rh5 Na6 Ke6 f7 Rh7 g8Q Rg7 Qba2 b1N Bb8 b2 Nd6 Nc3 Qb1 Na2 f8B+ Ke5 Be7 Kd4 Nc7 Qh8 Qe6 Rh7 Qc8 Rh1 Bf8 Qe5 Bg7 Bf6 Qbe1 b1Q Bh8 Qe7 Qf1 Qa1 Qb1 Qg7 Bf3 Qf7 Rg3 Rd1 Bg2 Qh7 Nde8 Kc4 Qd8 Nf8 g6 Bg5 g7 Ng6 g8Q Qd7+ Qe6 Qb5 Qec8 Qbb2 Qd2 Qb3 Ba5 Rb5 Bb6 Qbb2 Qa5 Rb3 Bh3 Qg7 Bg2 Qd7+ Ne6 Qdc6 N6c7 Qcb7 Nd6#
rr3n2/N3Nq1R/p1Q1r3/R1p1bp2/2KPQ3/2PN4/rB2R3/2N1bbkR b - - 0 1 legal: proof: e4 d5 a4 b5 axb5 e6 f4 e5 fxe5 dxe4 g4 h5 g5 f5 Be2 Nd7 Bg4 Ndf6 gxf6 hxg4 Ke2 Kd7 d4 Ke6 b4 Kd5 h4 g5 h5 c5 h6 g3 f7 g2 e6 e3 Kd3 a6 b6 e2 b7 e1R b8Q g4 c3 g3 h7 Be7 f8N Bd7 b5 Bc8 b6 Bd7 b7 Ba4 Bb2 Qc7 Ng6 Nf6 Nf3 g1R Qe2 g2 Nbd2 Bd6 e7 Be5 e8R Nd7 Nb3 Nf8 Qc8 Qf7 b8N Rg8 h8R Bb5+ Ke3 Rgf1 Ra5 Rf2 Nc6 g1B Na7 Rh2+ Kd2 Bf2 Rh7 Rg2 Qe3 Bf1 Nc1 Re2+ Kd3 Be1 Ng1 Rgf2 Nh3 Rh2 Nf2 Rh6 Nh4 Re6 Ng6 Rh8 Ba1 Ra2+ Qe2 Kd6 Kc4 Rb8 Bb2 Ra8 Kb3 Kd5 Nfd3 Rg8 Qc2 Ke4 Kc4 Kf3 Qb1 Kg2 Ne7 Rg4 Qc6+ Re4 R1h2+ Kg1 Qc2 Rh4 Qe2 Rg4 Qee4 Rg8 Re2 Ng6 Rd8 Rf8 Rd6 Rfc8 Rd8 Rcb8 Rdh8 Nf8 Rh6 Ng6 R8h7 Nf8 Rh1#
k1b5/N2p2p1/b6q/rnQ1Q3/N1B1NB1n/2n3P1/PR3bQp/K1NQ2b1 b - - 0 1 legal: proof: d4 a5 e4 c5 dxc5 a4 f4 a3 f5 Qb6 bxa3 Qc6 a4 Qh6 a5 Qxh2 e5 b5 Nd2 Ra6 Rb1 Rf6 exf6 Qh3 Rb4 Qh5 Re4 Qh2 Re6 fxe6 c4 Kd8 a6 Kc7 a7 Kb7 a8N h5 f7 b4 f6 e5 g3 e4 Nb3 e5 Bh6 e3 Bf4 e2 Kd2 e1N+ Kc1 e4 Kb1 e3 Nf3 h4 Nc1 b3 Ka1 e2 Ng5 h3 Ne4 Ng2 Nb6 e1B Na4 Rh5 c6+ Ka8 c7 Bf2 c5 Nh4 c6 Ne7 Bc4 Ra5 Rg1 Nd5 Rg2 Ba3 f8Q Nc3 f7 Na6 Qfd6 Bac5 f8Q Bg1 Rb2 Bcf2 Qff6 Qh1 Qf1 h2 Qdd1 Qg2 Qe5 Qh3 Bf7 Qe6 Qg2 Qh6 Rc2 Nb4 Bg8 Nbd5 Rb2 Nb5 Bf7 Ndc3 Bc4 Ba6 c8N Bb7 Na7 Bc8 c7 Nd4 Nac5 Ba6 Rd2 Ndb5 Rc2 Nd5 Na4 b2+ Kb1 Bb7 Nc6 Ba6 Nb8 Bb7 c8Q Ba6 Qc5 Bc8 Re2 Ndc3+ Kc2 Na7 Nc6 Nab5 Na7 b1B+ Kb2 Bd3 Bg8 Nc7 Ka1 Bda6 Bc4 N7b5 Rb2
2B2q2/Q1b1NbRQ/Q3nB2/3p2pk/r6b/2pKBR1Q/q3P2P/3B1rb1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 dxc4 g4 h5 gxh5 e6 f4 Nf6 d4 Nh7 d5 Nf6 d6 Nc6 Nc3 Ne5 fxe5 Ng8 Nd5 exd5 Kd2 f5 b4 Kf7 h6 Kg6 e6 a5 h7 c5 e7 a4 b6 c3+ Kc2 f4 b7 a3 b8Q f3 b5 f2 b6 c4 d7 a2 b7 Nh6 e8B+ Nf7 Qa7 Bc5 b8Q Kh5 Qb1 Rf8 Be3 Qa5 d8B Be6 Ba4 Ng5 Bh3 f1Q Nf3 Bf7 Nd4 Ne6 Nc6 Bd6 Be7 Bc7 Qd3 Qf6 h8Q+ Qh6 Kc1 c2 Rf1 g5 Kb2 c1B+ Kc2 Bd2 Bf6 Be1 Ne7 Bh4 Rf3 Qa6 Qf1 Qa5 Rc1 a1B Qhh7 Bd4 Rb1 c3 Qda6 Bc5 Kd3 B5b6 Bd1 Qa2 Bc1 Bg1 Be3 Rab8 Bf5 Rb4 Qh3 Ra4 Rb6 Rb8 Rd6 Rb1 Rd8 Ra1 Rg8 Rc1 Rg7 Rb1 Bb3 Rf1 Bd1 Nd8 Bc8 Ne6 Q7f5 Qh8 Qe4 Qf8 Qh7#
q1bRQ3/k1N1R2R/PB4rp/1P1b3B/1b5K/p2bQQ2/2q1rRp1/5n1Q b - - 0 1 illegal: No possible last move, all moves rejected
N3n1NQ/N1Q2Pb1/3p2B1/2Q2B1q/K2PbpqR/1Qp5/2nk2N1/b1r4b b - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 a5 b4 Bb7 a4 Bc8 axb5 a4 b6 Na6 b7 Ra7 b5 Nb8 b6 Ra5 f4 e5 e4 f6 f5 Rd5 Ra3 Rb5 Rf3 Bh6 cxb5 Bf8 Rf4 Bc5 Bb2 exf4 e5 Bb4 e6 Bf8 Be5 fxe5 g4 Ke7 d4 Kd6 Kd2 Kd5 Kc3 Ke4 e7 Ke3 Kb4 h5 f6 e4 g6 a3 g5 c5+ Ka4 d6 e8N c4 f7 c3 g7 a2 g6 a1B Nc7 h4 Nf3 h3 Qb3 h2 Na3 Rh4 Bh3 Nc6 b8Q Qg5 b7 Qf6 b6 Rh8 Bf5 Qe6 Nab5 Nf6 g8B Bg7 Ne1 Nb4 Na8 Nc2 Qa7 Kd2 b8Q e3 b7 e2 Qc7 Ne8 b8Q Bb7 Bh7 Be4 Ng2 e1Q Qac5 Qd1 Na7 Qg4 Qbd8 Qf6 Qdb8 Qfg5 Qbd8 Q5h5 Qf6 Bf8 g7 Rg8 Qh4 Rh8 g8N Bg7 Rc1 h1B Bhg6 Qhg5 Qh2 Rh3 Re1 Q5h5 Rf1 Re3 Rf3 Re1 Rh3 Rd1 Rh4 Rc1 Qg3 Qh3 Qg5 Q3f3 Qh6 Qfg4 Qh8
1Q5r/Qp1bK3/Rb1B4/4p2b/4NbkP/2n4R/npQ1Q1PR/RB1br3 b - - 0 1 illegal: No proof kernel
2n1B3/1Q2bB2/kp4n1/P7/rP1prb1b/2r2BQr/1Q1BR2p/2N1RQ1K b - - 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 exf5 a5 g4 a4 f6 Kf7 Nd2 Ke6 f7 Kd6 Nb3 axb3 Bg5 Kc7 Bc1 Kc6 f4 Kc7 f5 g5 Kd2 b6 Ke1 Ba6 h3 Bd3 f6 Bf5 Be3 Qc8 Bd2 Kd8 gxf5 g4 Bh6 g3 Bc1 Qb7 Bb5 Qf3 Bf1 Qg4 hxg4 Ra7 Nf3 Ra6 Ng1 Ra8 c4 Kc7 a4 Kb7 a5 d5 c5 h5 g5 e5 g6 g2 Kf2 h4 g7 d3 c6+ Ka6 c7 h3 Ne2 h2 Bd2 g1B+ Kg2 e4 Nc1 b2 Ra2 b1R Qf3 e3 Be2 d4 Qg3 Ne7 g8B Nd7 Bf3 e2 Rb2 Be3 Re1 Ne5 Kh1 Ra1 c8B+ Kb5 Be6 Ra4 Bd7+ Ka6 Be8 Nc8 Ra2 Be7 f8Q Ra7 f7 Rh3 f6 Ng6 Qg7 Rc7 f8Q Bf4 f7 Rc3 Rb2 Bf6 Qc5 B6g5 f8Q Be7 Rd1 e1B Bgf7 Bf2 Qd5 Be1 Qb3 Bf2 Ra2 Be1 Qb2 Bf2 Be3 d2 Re1 d1R Qh7 Rdd3 Bd2 Rh4 Qfg7 Rg4 Qhh3 Rh4 Qf1 Rh3 Re2 Re3 Ra1 Be1 Nd3 Bf2 Rae1 Re5 Nc1 Re4 Qg5 Bh4 Qd5 Nf8 Qg3 Ng6 Qb7+
2r3RQ/1q1p1q1q/q1r3Qr/2p1Q3/B1BBKp1k/R1b5/1PNBQP2/3b4 b - - 0 1 legal: proof: d4 b5 c4 f5 cxb5 e5 g4 exd4 a4 f4 Nc3 h6 Ne4 Ne7 Ng5 Nf5 gxf5 hxg5 Qd2 g4 Qd1 Nc6 a5 Ne5 Rb1 Nc4 Ra1 Nb6 axb6 Rh6 Qb3 Rh3 Qd1 Rh8 Kd2 Ke7 Kd3 Kf6 e4 Kg5 b7 a5 b8Q c5 b6 a4 e5 a3 e6 g3 e7 g2 e8B a2 f6 Ba6+ Ke4 d3 b7 d2 f7 Be2 Qe5+ Kh4 b8Q g5 Qbd6 g4 Qg6 Bg7 f8B g3 Bf7 Qf6 Bb3 Rh6 Ba4 Qf7 h3 Bh5 Ne2 g1Q Nd4 g2 Nc2 Rc8 Qe2 d1R Bd2 Qh2 Rg1 Bh8 Bg7 Re1 Qe3 Bd1 Bc4 Rc6 Qe2 Qh1 Rc1 a1Q Rb1 Qa3 Ra1 Qb4 Ra3 Qb7 Qe8 Qh2 Bd4 Bf6 Qe5 Bg7 Rf1 g1Q Qd5 Qg4 B4e3 Rh8 Qge6 Qgh5 Qf3 Bc3 Bcb3 Rhc8 Qde5 Qg3 Qe2 Qh8 Bd4 Qhh5 Rg1 Qd3+ Kd5 Qda6 Bc4 Rf1 Rg8 Rh1 Ke4 Qhf5+ Kf3 Kh5 h4 Qg5 Qg4+ Kh6 h5 Qgg7 Ke4 Rh3 Qb8 Rh2 Qe6+ Kg5 h6 Rh1 h7 Rh6 h8Q Kh4 Qbe5 Qh7+ Qg6
Kbn3r1/Q6p/2nN1p2/2P1Q1Rp/Qp4r1/1NPN1q2/2b2Q1n/2N1RBk1 b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 f4 axb4 fxe5 Ra6 g4 Bd6 h4 Qa5 Bh6 gxh6 g5 Qd8 g6 Qg5 hxg5 Bf8 Rh3 Ra4 Rh1 Ra8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kf4 a4 Ke3 e6 Kf2 e4 b5 e5 f6 a5 d6 e7 h5 e8Q b3 g7 b4 c3 b2 e6 Nc6 a6 Ra7 g6 Re7 a7 Rc7 a8Q Bd7 e7 Bg4 Nd2 b1N Qda4 Na7 Ne2 Nc6 Nc1 Rc8 Q8a7 Bf5 Rg1 Bc2 Ndb3 Nd2 Rg5 Nf3 Rb1 Nh2 Ra1 Nh6 g8N Nf7 Nh6 Rg8 Ng4+ Kg1 g7 Rc7 Qeb8 Rd7 e8N Rb7 Ke6 d5 Qe5 d4 Kd5 d3 Nd6 d2 Rb1 Be7 Ra1 Bd8 Rb1 Bc7 Nf2+ Ng4 Nfd3 d1Q Ra1 Bb8 Rb1 Rd8 g8Q Qf3+ Kc4 Re7 Kb5 Rf8 Qg7 Rg8 Kb6 Ree8 Kb7 Rd8 Nf5 Rd4 Ka8 Nd6 Qgd7 Nc8 Nd6 Rf4 Qdf5 Rc4 Na2 Re4 Re1 Rd4 Nac1 Re4 Qff4 Rd4 Rf5 Nh2 Qd2 Rf4 Rg5+ Rg4 Qf2+
4bq2/3nnR1Q/P4n2/pbB5/RQPR1pR1/1p1rb3/1B2kpK1/1NB4B b - - 0 1 illegal: No proof kernel
Nq6/1p6/1q2kQpR/3Rn2Q/1r1p1K1b/5Q2/pNRnP1PR/1Q1Brn2 b - - 0 1 illegal: No proof kernel forced: bxLB
nq4k1/3q4/p1rQ2qB/p3p1p1/PR1Q4/Kn3RQp/3P1QBN/1B2B1b1 b - - 0 1 legal: proof: e4 f5 g4 fxe4 h4 d5 c4 g5 cxd5 a6 f4 Nf6 h5 Ng8 f5 Be6 Nc3 Bf7 Nb5 Bg6 hxg6 Ra7 Nd4 Ra8 Nc6 Ra7 Na5 b6 f6 bxa5 Rb1 Rb7 Ra1 Rb3 Rh4 Rf3 Rh1 Rf5 gxf5 Bh6 Qg4 Bg7 Qd1 Bf8 a4 c5 b4 h5 d6 e5 f7+ Kd7 b5 e3 f6 Ke6 d7 h4 b6 c4 g7 c3 b7 h3 Qg4+ Kd5 Kd1 e2+ Kc2 e1Q Kb3 c2 Qg3 Ke6 Nf3 Qe8 d8Q Qc6 Ra3 Rh6 Qd4 Rh7 Bg2 Rh6 Nh2 Qee4 Bb2 Nd7 b8Q Bc5 f8Q c1Q f7 Ne7 g8B Qg6 Bh7 Nb6 Bc3 Qa1 Rb1 Qd7 Qc7 Nc6 Qcd6+ Kf5 Rb2 Na8 Bb4 Ba7 Bc5 Qf1 Ka2 Qb5 Rb4 Qb8 Rd3 Bb6 Ka3 Ba7 Qdh4 Bb6 Bf2 Nd4 Be1 Nb3 Qd8 Ba7 f8B Bg1 Qdd4 Ke6 Rf3 Qf5 Qgf2 Kf7 Qhg3 Rc6 Bh6 Qf6 Bf5 Qg6 Qf6+ Kg8 Qfd6 Nc1 Be4 Nb3 Bb1
1K1R4/1Q3Q2/1QbP1p1b/rN1RB1pb/Np3k1p/1p6/5NbP/N2Qnq2 b - - 0 1 illegal: No proof kernel
r4n1n/1RB3r1/NQ1b4/2N1pB2/2k1B2n/b1r2qbN/P1bKP1N1/3BQb2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h5 g6 Bd7 g5 Ra6 Na3 Ra8 Rb1 Bh3 Rb3 Bf5 Rg3 Bc8 Rg4 hxg4 h4 Kd7 d4 Kd6 g7 b5 h5 f5 h6 e5 h7 c5 g6 b3 Rh3 g3 Bb2 b4 Rh2 c4 Qd2 f4 Qc1 f3 Qd1 c3 Nh3 c2 Bg2 c1B Bc3 b2 Nc2 b3 Nb4 b1R Na6 b2 Ba5 Ne7 g8B Bf5 g7 Nd7 Be6 Ng6 g8B Bc2 Bf5 Qf6 Bf7 Rg8 h8N Rg7 Bc7+ Ke7 Bh1 g2 B7e6 Qf7 d6+ Kf6 d5 g1B Rg2 Bh2 Rg4 Be7 Rb4 Ndf8 d7 Bd6 d8N Bhf4 Nb7 Bg3+ Nf2 Ra1 Nbc5 b1N Rb7 Ba3 Bd7 Ke7 Ba4 Nd2 Bg2 Rc1 Bb3 Nh4 Ng6+ Kf6 Bh1 Ne4 Nf4 Ng5 Kd2 Ke7 N2h3 f2 Bf3 f1B Qe1 Qh5 B3e4 Nf7 Ba4 Qf3 Ng2 Nh8 Bb3 Bd3 Ba4 Rc3 Bd1 Bc2 Nb8 Kf6 Nba6 Be7 d6 Kf7 d7 Bd6 Nb3 Kf6 d8Q+ Kf7 Bh7 Ke6 Bef5+ Kd5 Nbc5 Kd4 Be4 Kc4 Bhf5 Rg5 Qb8 Rg8 Qa7 Rg7 Qb6
1n2kr2/rrb1B3/nQP2r2/Q1Np2R1/b2KN1r1/1R1P2q1/n6q/QR2R2Q b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 b4 gxh4 b6 c6 b7 Bh6 b5 Bg7 b6 Bf8 Bb5 cxb5 Ke2 d5 Kd3 e5 g4 h5 f4 a5 c4 b4 c5 e4+ Ke3 a4 f6 h3 f5 h4 g5 h2 d3 h3 g6 b3 g7 a3 Nc3 b2 Qf3 b1R Na4 a2 Nc3 Ra4 Ba3 Bd7 Nge2 Qc7 Nf4 Bd6 Ne6 Na6 Re1 Ne7 Qh1 Rf8 g8R Nc6 Rg5 Ncb8 Bb4 Rb3 Kd4 e3 Ne4 e2 Rab1 Bb5 c6 a1R N6c5 Bf4 Qf1 h1R Qf3 Rf1 Qh1 h2 f7+ Ke7 f6+ Kd8 Qg2 h1Q Qg1 Qh2 Qh1 Ra5 Ba3 Ba4 Bb4 Rg1 Ba3 Rg4 Bb4 Re8 f8Q Bd6 Qg7 Rf8 f7 Ra2 Red1 e1N Ba3 Rf2 Rdc1 Ng2 Re1 Ne3 Bb4 Nd1 Qh8 Re8 f8Q Nc3 Qf4 Rg8 Qd2 Rgf8 Ba3 Rf6 Qa2 Nd7 b8Q+ Ke7 Qd2 Na2 b7 Rbb5 Qa7 Ndb8 Qb6 Ke8 Qc3 Qg3 Qa1 Qh7 Qg7 Qhh2 Qgc7 N6b4 Rb3 Ra7 Qa5 N4a6 Qcb6 Bc7 Bb4 Nd7 b8R+ Kf7 Rb7 Ke8 Ne6 Ndb8 Be7 Qd6 Nc5 Qdg3 Rbb1 Ra8 Qa7 Rb2 Rb4 Rb3 Rc4 Rb2 Rc3 Rb7 Q7b6 Raa7 Rcb3
B4R1q/nRPb3k/1B3p1q/4RQqQ/2n5/Qr1R1P2/1nQ1r1q1/KN4bq b - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 d3 Nc3 e6 Nd5 exd5 Bf4 d4 Bh6 Na6 Bc1 Nb8 Kd2 d5 c4 a5 h4 g5 e4 g4 b4 g3 c5 a4 e5 a3 e6 a2 e7 f6 h6 Kf7 e8R Kg6 c6 g2 c7 Be6 h7 Qd6 b6 Qe5 b5 Ra3 b7 Bd7 b6 Rb3 Rb1 a1Q Nf3 g1Q Rh3 Ne7 Qc2 Nbc6 b8R Na7 b7 Nf5 Bg2 Ne3 h5+ Kg7 Rbc8 Qg5 b8Q Bc5 Re5 Re8 h6+ Kg6 Bh1 Q1g2 h8Q Nc4+ Kd1 Bb6 Qf8 Kh7 Nd2 Qa6 Rd8 Qc8 Qa3 Re7 Rf8 Qe8 Ne4 d2 Qc8 Bc5 Rd3 Bb6 Ke2 d1N Be3 Ndb2 Nd2 Qeg6 Ke1 Qg8 Ke2 Qh8 Ke1 Na4 Kd1 Nab2+ Kc1 Re8 Ra1 Re6 Kb1 Re8 Rc3+ d3 Ka2 d4 Rb1 Re7 Ka1 Bc5 Ne4 d2 Rd3 d1Q Nd2 Qc6 Bd5 Qh1 f3 Qhg2 Bg1 Qe6 Ba8 Qeh3 Rd5 Re2 Re5 Kg6 h7 Qhh6 Re1 Kg7 Nb1 Bb6 Rb5 Bc5 Rb7 Kg6 Re3+ d3 Re5 Kg7 Rd1 d2 Bd4 Bb5 Q8f5 Bd7 Bc3 Bg1 Bd4 Qhh3 Bb6 Qhh6 Re1 d1Q Rf1 Qd4 Rd1 Qdh4 Rd3 Qhh1 Qg4 Qg8 h8Q+ Kg6 Rfb8 Qgh7 Qe8+ Kg7 Qeh5 Qh8 Rf8 Kh7 Qf5+
6N1/5PQ1/p1Qr2b1/1nN1bBqr/5Q1k/P1q1Br2/BnB1Q3/q3qqRK b - - 0 1 legal: proof: g4 e5 d4 f5 dxe5 fxg4 b4 h5 a3 c5 bxc5 Qg5 Ra2 Qd8 Rb2 h4 Rb3 Qc7 Rc3 Qd8 Rg3 hxg3 e4 Kf7 h4 Kg6 f4 Kh5 c4 g5 f5 d5 c6 b5 e6 b4 e7 b3 e5 d4 c7 g2 Kf2 d3 e6 b2 f6 a6 c5 d2 c6 Qd5 Nf3 Nd7 Kg1 Qb3 Nd4 Qc3 Nb3 Nb6 Qf3 d1R Be3 Nh6 e8B+ Nf7 e7 Na4 Nc5 Rd6 Qf4 Bf5 c8Q Bg7 c7 Bg6 Nd2 b1Q Nde4 Nb2 Ba4 Qbe1 e8Q Rb8 Qce6 Rb3 c8B Rh6 Qc6 Rh7 Kh2 g3+ Kh3 g1Q Bc4 Qgf2 Rg1 g2 Kh2 g4 Qee8 Qff1 Bf5 Nd8 f7 Ne6 Qe7 Nd4 Bfe6 Rb8 Bc2 Be5 Ba2 Rb3 Bd7 Nb5 Qe6 Qa5 Qc4 Qec3 Qe2 Qd8 Bc8 Qg5 Nf6+ Kh6 h5 g3+ Kh3 Qfe1 Bg4 Qa1 Rc1 g1Q Re1 Qf2 Rg1 g2 Kh2 Qfe1 Ng8+ Kg7 Rf1 Rh8 h6+ Kh7 Rh1 g1Q+ Kh3 Qgf1+ Kh2 Bd3 Rg1 Kg6 h7 Bf5 Kh1 Bd3 Qeh2 Bf5 Bh3 Kh5 Qhg2 Bg6 Bg4+ Kh4 Qe2 Rd5 Nh6 Rhd8 h8Q R5d6 Qhf6 Rh8 Ng8 Rh5 Qg7 Rb4 Qff6 Rf4 Qf5 Rf2 Qf4 Rf3 Bgf5+
5R2/1R1p2r1/2QP3K/1P1nkQQ1/b2nrR1N/b1r1b2Q/2n1qn1B/qR5B b - - 0 1 illegal: No possible last move, all moves rejected
1Q3k1n/KbNp4/4NqBN/B2Pr1B1/1bq5/Nb1Qnq2/r2P3B/1b3r1R b - - 0 1 illegal: No proof kernel
1r1R1br1/NqQpN1k1/Q1b3R1/3P1n1Q/2P3BR/K3R1Q1/2qnbb2/2r3q1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 d4 Kf7 Kd2 e5 Kc1 h5 Kb2 a5 g4 b3 c4 a4 f4 h3 g5 h4 d5 e4 g6+ Kf6 g7 h2 b7 h3 b6 e3 Ne2 Na6 b8Q Nc5 b7 Ne7 g8R Qb6 Rg6+ Kf7 f6 Ne4 f5 Rg8 Nd4 e2 Na3 e1B Qg3 Bf2 b8Q Qb7 Nc6 Nd2 Qbc7 Rb8 Nb5 a3+ Kc3 a2 Kb4 b2 Be2 b1Q+ Ka3 Nf1 Bg4 Nd2 Nba7 Qc2 Re1 h1Q Re3 h2 Qdf3 Qg2 Rh1 Qg1 Qe2 Rg7 Qd1 Kg8 f7+ Kh8 f6 Rg8 Qa1 Nf5+ Ne7 Kh7 Qb1 a1R+ Qa2 Rc1 Qa1 Bh6 f8R Kh8 Rd8 Bf8 f7+ Kh7 Rf6 Kg7 Qae5 Qa8 Qed6 Bb7 Qa6 Bc6 Rh6 Qb7 Rh4 Qe1 Rg1 h1B Rg2 Kf6 Rg1 Bf3 Rg2 Be2 Rg1 Bh6 Rg2 Kg7 f8Q+ Kh8 Qe8 Qg1 Bh5 Bf8 Bg4+ Kg7 Qh5 Qh1 Rg1 Qg2 Re1 Qg1 Re6 Bf1 R1e3 Be2 Rg6+
1k1N1Q2/1nq2R2/5Q1B/1NQ1r3/2qp2Q1/b1N4P/qrnP1RKN/bbn3n1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 b4 hxg4 b6 c6 b5 Rh4 b7 Rh7 b6 Rh8 Bb5 cxb5 Kf1 g5 c4 d5 f4 Kd7 f6 a5 f7 e5 f5 b4 h3 a4 c5 e4 f6 b3 Ba3 b2 Ra2 d4 Qc2 g3 Qc4 g4 Bb4 a3 Ra1 e3 Bc3 a2 Ba5 g2+ Ke2 g3 Kf3 e2 Nc3 b1Q Qb5+ Nc6 b8Q e1Q b7 Qec1 Bc7 Ne7 Rh2 Ra5 Bf4 Nd5 Bh6 Nb4 Qf4 Nc2 Qg4+ Kc7 b8N Bf5 Qc4 Be7 f8Q Qd6 f7 Nd8 c6 Nb7 Qfg7 Re5 f8Q Qe6 Q7g5 Ba3 Qcc5 Qc4 Qgf6 Qbb3 Rb1 a1B Rb2 Qa2 Rb6 Nd8 Rb7+ Kc8 c7 Rh7 Nge2 g1N+ Kg2 Rh8 Nc6 Rh7 Nf4 Ne2 Ng6 Rg7 Nh4 Rf7 Kf3 g2 Kf2 g1N Kg2 Rfe7 Nf3 Re8 Ra7 Nb7 Nd8 R8e6 Ra4 Rb6 Ra7 Kd7 c8N Rb2 Qgh4 Bh7 Nd6 Be4 Qg4+ Bf5 Qb4 Kc7 Ndb5+ Kb8 Qbd6+ Qc7 Qc5 Bh7 Kh1 Qf1 Rf2 Nc1 Nh2 Qfc4 Kg2 Nb4 Ra6 Bb1 Rd6 Nc2 Rd7 Qb4 Re7 Qbc4 Rf7
8/3q3P/NrQnN3/2qNkbQB/N1pb1rq1/1b4B1/r1PK4/2QnRrQ1 b - - 0 1 legal: proof: d4 b5 b4 e5 dxe5 h5 a4 f5 axb5 f4 g4 hxg4 Ra3 Ba6 Rc3 Bc8 Rg3 fxg3 f4 Ke7 h4 Ke6 e4 a5 b6 g5 b5 d5 h5 c5 h6 a4 h7 d4 b7 a3 b6 d3 Rh3 a2 Qe2 a1R Qd1 d2+ Ke2 g2 Re3 g3 Nh3 g1Q Bb2 g2 Nc3 g4 Qc1 g3 Na4 Na6 b8Q Nb4 b7 Ra6 Qa7 Ra2 b8N Rb6 Na6 d1B+ Ke1 Qe7 Kd2 Bh5 Re1 Bg7 Be2 Bf7 Bh5 Qd7+ Bd4 Nd3 Bf2 Nf6 f5+ Ke7 e6 Kd6 e7 Bb3 e8Q c4 Qf8+ Ke5 Nf4 Ne8 f6 Nd6 f7 Nb2 Qd8 Nd1 f8N Bf6 N8e6 Rf8 Nd5 Bh8 Re2 Rf4 Be1 Qc5 Qg5+ Nf5 Bf2 g1R Re1 g2 Bg3 Rf1 Nf8 Kd4 e5 g1Q e6 Nd6 e7 Bg7 e8Q Qg2+ Qe2 Qf3 Qa8 Qfg4 Qh2 Be5 Qc6 Bh8 Re8 Be5 Ne6+ Ke4 Qg8 Bd4 Qg1 Ke5 Nd8+ Qe7 Qg5+ Bf5 Ne6 Qd7 Re7 Bf2 Nd8+ Kd4 Qh1 Bg1 Re1 Bf2 Ne3 Ke5 Qg1 Qh3 Nd5+ Be3+ Ke2 Bd4 Ne6 Qg4+ Kd2+
bq1Q2r1/b1pNQ3/1N5q/1qQnN3/R3B1Pr/1QN1k3/1KP4r/1n2br1R b - - 0 1 legal: proof: f4 b5 d4 h5 a4 g5 axb5 h4 Be3 e6 Bf2 e5 dxe5 gxf4 g4 Rh7 Bg3 hxg3 Qd6 Rh4 Qd1 Rh8 Kd2 Ke7 Kc3 Ke6 b4 d5 h4 a5 e4 f5 h5 f3 b6 f4 b7 f2 b5 g2 b6 d4+ Kb3 d3 h6 f3 h7 d2 Bd3 f1R Qe2 d1R Rh5 a4+ Kc3 f2 Nf3 g1B Rh2 a3 Nfd2 a2 Qe3 Na6 b8Q Nf6 b7 Nb4 Rh1 Nfd5+ Kb2 Nc3 Nc4 Nbd5 Nb6 Bb4 Qc5 Rg8 h8N Rd2 Ng6 Ba5 Na3 Nb1 Nb5 Bd7 Nc3 Bc6 Nc4 Qh4 Nb6 Qh6 Qd8 Ra6 b8N Ba8 N8d7 Re2 Nb5 Be1 Nc3 Re3 Qb8 Rh3 Qd8 Rh2 Qb8 Kf7 e6+ Kg7 e7 Kf7 e5 Ke6 Be4 Ra3 Nb5 Rah3 Nc3 Rh4 Qd8 Nd2 Rd1 Nb1 Rd4 a1Q+ Kb3 Qa5 Kb2 Qa7 Ra4 Qb8 e8Q+ Ne7 Qf8 Nd5 Qf3 Qg5 Qce3 Ne7 Nb5 Qh6 Nc8 Nd5 Qa3 Ba5 Qaf8 Rd1 Qb3 f1Q Qfa3 Bd2 Nc3 Ba7 Ncb6 Qb5 Qab4 Rf1 Qc5 Kf7 e6+ Kg7 e7 Be1 Nde5 Kf6 Nf8 Kg5 e8Q+ Kf4 Qed7 Rff2 Q7e7 Rf1 Qc6 Ke3 Nfd7 Kf4 Qcd6 Ke3 Qc5+
B2rb1R1/4B3/Q3RK2/1p1qnP1b/n2nRnQk/4br2/NP2Bn2/R2n3B b - - 0 1 illegal: No proof kernel
N1KBr1kb/b4P2/n2b1pN1/nQ1Q1Q1Q/1B3br1/1bb3q1/1B3P2/3BrR2 b - - 0 1 illegal: No possible last move, all moves rejected
1nb3Q1/BP3p1K/3rb1n1/1R3kr1/2R2N2/R3BB1R/q2bnP1b/2qnQ1B1 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 Kd2 Kd7 g4 h5 b4 a5 e4 c5 b6 a4 b7 d3 Ke3 h3 Kf4 c4 g5 h4 b5 a3 e5 a2 b6 d2 e6+ Ke8 d7+ Ke7 g6 Kf6 d6 h2 e7 h3 e8R c3 g7 c2 Ne2 Qc7 d8R Qc5 d7 Ne7 g8Q Rh6 Qe1 d1N Be3 c1B Bg2 Ra5 Bf3 Bd2 Kg4 Qc3 Nf4 Ng6 Re5 Bd6 Rb5 Qc1 Re8 Bc7 Re4 Bd6 Rc4 Be5 Rab1 a1Q R1b3 Qa2 Ra3 Bc7 Rb1 Ke5 Kg5 Rc5 d8B Be6 Rf1 h1B Rb5 h2 Be7 Bg2 Rh1 Bgh3 Bd8 Rd5 Be7 Bc8 B7c5 Bhe6 Bcd4+ Kd6+ Kf6 Rg5 Kg7 Ke7 Rg1 h1N Rg3 Kd7 Rh3 Ng3 Be5 Ne2 B5d4 Nc6 b8B Bd6 Ba7 Nb8 b7 Bc7 Bdb6 Kd6 Bbc5+ Ke5 Bb4+ Bd5 Bd6+ Kf5 Be5 Bde6 Bac5 Rh4 Ba7 Rhg4 Kh7 Rh4+ Nh5 Rd4 Bh2+ Be5 Bg1 Rd6 Rbb3 Bg3 Nf4 Bh2 Rb5+
b6r/b3PRRp/1kq1p1qQ/6b1/2nBPr1r/NQ1R2K1/2BB2nB/3R2n1 b - - 0 1 illegal: No possible last move
2bn1b1r/1RNpP1q1/2QN1p2/k2P1r1q/N3Q3/Q1N3b1/1R1Q2Kn/1B1q2n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ba3 Qb6 axb5 Qf6 b6 Qg5 b5 Qd8 Bb4 cxb4 Kf2 a5 h4 g5 d4 f3 e4 b3 c4 a4 c5 g4 b7 b2 h6 a3 c6 a2 h5 f6 c7 Na6 b8Q Bb7 c8N Nb4 d5 Qa5 e5 Kd8 h7 Be7 h6 Nc6 b6 Qa7 e6 Bf8 Ne2 Qa6 Nbc3 b1Q Qd2 Qd1 Rb1 a1B Na4 Be5 Nd6+ Bc8 b7 g3+ Kg1 f2+ Kg2 Qb6 Nec3 Qh5 Qa7 Kc7 Rh2 Nd8 Bd3 Qb4 Qa6 Qbg4 b8N Qg7 Rb4 Ra7 Bb1 Rb7 Rb2 Rb3 Rh4 Ra3 Rhb4 Rb3 Rb5 Rb4 Rb6 Rf4 Qad3 Rf5 Qe4 Ne7 R6b5 Nec6 e7 Nd4 Rb6 Nf3 R6b4 Rg8 h8Q Nh2 h7 Bf4 Ndb5+ Kb7 Na6 Bd6 Nac7 Bf4 Ne6 Ka6 Nec7+ Ka5 Nd6 Ng4 Kf3 g2 Rb7 g1N+ Kg2 Bh2 R7b6 Bg3 Rb7 Qgh6 Qg7 Nh2 h8Q Q6g5 Qhh6 Rh8 Qgg6 Qgg4 Qhe3 Qgg5 Qg8 Qg7 Qge6 f1Q+ Kh1 Qfd1 Kg2 Qb3 Qc5+ Qb5 Qa3 Qb3 Nde8 Qc2 Qc6 Qcd1 Nd6
1rr5/2Q1R2Q/p2NNqnQ/4PQ1r/Pk1N2p1/3qN3/1n1b2B1/b1nR2Kb b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 h4 Ke7 e4 d5 a4 b5 c4 g5 f4 d4 c6 b4 c5 a6 e6 b3 h5 g2 Kf2 b2 f5 d3 c7 d2 h6 Bg7 h7 Bb7 c8Q Nc6 Nf3 g1N Qc1 d1Q Nc3 b1R Bg2 Na5 c6 Kd6 c7 Kc5 f6 Kb4 f7 Ne2 f8N Ne7 Nd4 Ng6 e7 Nc4 e8N Qf6+ Qf5 Nb2 c8Q Qd3 Qc7 Rc8 Nd1 g3+ Kf1 g4 e5 Bh6 Nd6 Bd2 Nfe6 Be4 Q1c2 Nc1+ Kg1 Ba8 Ne3 Bf3 Bh3 Be4 Rh2 Bh1 Bf1 g2 Rh6 Rhe8 h8Q Red8 Qhg7 Rh8 Rh3 Rh5 Qf8 Rg5 Rh7 Rh5 Qh6 Qc4 Kf2 Qd3 Re7 g1B+ Kg3 Bh2+ Kf2 Bc3 Bg2 Bf4 Nec4 Bfd2 Ne3 Nc4 Kg1 Rb3 Rb1 Ba1 Qh7 Nb2 Q2c6 Na2 Rd1 Nc1 Qg5 Rb8 Qgh6 Rc3 Qf3 Rc6 Qf5 Rc2 Qd8 Rcc8 Qc7
NB1B1nBb/3nK1P1/1kr1p3/1n2P1Q1/4p1QB/1Q1bbbQR/q2Rb3/7r b - - 0 1 legal: proof: e4 b5 c4 f5 a4 d5 axb5 g5 cxd5 Bb7 h4 gxh4 e5 Ba6 Nc3 Bc8 Ne4 fxe4 Ke2 Kd7 Ke3 a5 Kf4 c5 Kg5 Kc7 d4 h5 g4 a4 b4 c4 f4 a3 b6+ Kb7 d6 c3 f5 c2 f6 h3 f7 h2 d7 h4 b5 h3 d5 a2 d6 Nc6 Bc4 Rb8 Ne2 Qe8 d8B Nd4 d7 Nf6 Nf4 Bg7 f8Q Qf7 Nd5 Ne6+ Kf5 Rh7 g5 Bh8 Qg8 Nf8 g6 Rh5+ Bg5 c1B g7 Be3 Qg4 Rh7 Raf1 a1N Rf2 Nc2 Rd2 Na3 Nc7 Ra8 Bb3 Ra6 Bh4 Qc4 Qe6 Qc2 Qd6 Qa2 Qd3 Rh6 Bg8 Rh7 Rg1 h1B Rg3 h2 Rh3 Bf3 Qc3 h1B Qb3 Ng6 Ke6 Nf8+ Kf7 e6 Ke7 Be2 Qc3 Kb8 b7 Ka7 b8B+ Kb6 Qb3 Bhf3 Qc3 Kb7 b6 Nb5 Qb3 Kc6 b7 Kc5 Qd3 Rc6 Qb3 Bd4 Qe3 Kb6 Qf2 Be3 Qfg3 Rh5 Ba7+ Ka5 b8Q Ba6 Qb7 Rh6 Bb8 Rh7 Qa7 Rh5 Qd4 Rh6 Qb2 Kb6 Qc2 Na3 Qc3 Bad3 Qb3+ Nb5 Bg5 Nd5+ Ke8 Rf6 Bh4 Bh1 Be7 Rf1 d8Q Bhf3 Beg5 Rh1 Qf6 Bd1 Qh6 B1e2 Bd8 Nf6+ Ke7 N6d7 Qhh5 Qa6 Qhg5 Qa2 Na8+
3Nk3/7B/1R2Q1rb/1nBbpK2/4P2b/Qpb1P3/nb2NB1r/n1qBQ1Q1 b - - 0 1 illegal: No proof kernel
R1RbbB2/2p4B/b2n1R1Q/3Q1PB1/k1p5/4r1r1/1rP1b1BK/1N1q1Rnb b - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 d5 b4 axb4 Na3 f5 Nc4 dxc4 exf5 Be6 Rh3 Bd7 Rh1 Bc8 f4 Kd7 Kf2 Kc6 Kg3 Kb5 d4 e5 f6 h5 g6 h4+ Kh2 e4 g4 h3 d5 b3 a3 e3 f7 b2 d6 b1B f5 e2 d7 e1R g7 Nc6 g5 Nh6 g8B Rb8 g6 Be7 f8Q Nd4 g7 Re3 Qe1 Ne2 Bf7 Ka4 g8R b5 Rg5 b4 Rg4 b3 Rg5 b2 Rg8 Ba6 Qd1 Ba2 Nf3 b1B Nd2 Bb3 Bg2 Ng1 Bg6 Nf7 Bh7 B1a2 Qh6 Nd6 Nb1 Rb4 Rg6 Rg8 Rf6 Rgg3 Qd5 Qg8 Bf3 Bb7 d8B Re4 Qe3 Bf8 Be7 Qg4 Qdd3 Ka5 Qd1 Ba4 Qf1 B2b3 Ra2 Bb5 a4 Ne2 Qd1 Qh5 Re1 Ng1 Kh1 h2 Bg2 Qg4 Qdd3 Qd1 Qh6 Re2 Be3 Bf3 Bg5 Re3 Rf1 Be2 Qd4 Be8 Qd5+ Rb5 Ra3 Kb4 a5 Ba4 a6 Bg7 Rf7 Bf6 Bf8 Bd8 a7 Rb7 Ra1 Bab5 Rf6 Rb6 Ra2 Rb7 Rb2+ Ka4 a8R+ Ba6 Rb6 Bf3 Rc8 Rb8 Rb7 Be2 Ra7 Rb6 Raa8 Rb2 Be4 Rgf3 Kg2 h1B+ Kh2 Rg3 Bg2
2b2rB1/1QBp3K/1bQ1b1n1/1nqnr3/1pQP4/2N1B1R1/2bPb1BN/Q6k b - - 0 1 illegal: No proof kernel
bB2k3/n3N1n1/1rb3Pr/1q2N2B/r3n2p/1Rb1KpNP/4QQ1N/BbB5 b - - 0 1 legal: proof: c4 b5 f4 e5 a4 exf4 axb5 d5 cxd5 g5 Ra3 g4 Rf3 gxf3 b3 Bf5 b4 Bc8 Kf2 f5 e4 a5 g4 h5 d4 c5 h3 h4 d6 c4 g5 c3 d5 a4 g6 a3 e5 c2 e6 a2 b6 a1N e7 Qc7 b7 Nb3 b5 Ra4 b6 Nc6 b8B Qb7 Ne2 Bd7 Nd2 Na7 Ng3 Bc6 Qe1 Nd4 Be2 Bg7 Ndf1 Rh6 Nh2 Ne6 Bd1 Qd7 b7 Nf6 Bc7 Bh8 b8B Ng7 Ba5 Ba8 Bc3 Qb5 Ba1 Bc6 Qd2 Ba8 Re1 Bc6 Re3 Ne4+ Ke1 Ba8 Rb3 Bc6 Qe2 f2+ Kf1 Ba8 Kg2 f1B+ Kf3 Bc6 Qf2 Bd3 Be2 Ba8 Bd1 Qb4 Be2 Bb5 Bd1 Bbc6 Ke2 Qb6 Kd3 Qb7 Bh5 f3 Ke3 Qb5 Qe2 Kd7 e8N f2 Nc7 Kd8 d7 f1B Qf2 Ke7 d8N Bd3 d6+ Kf8 Nd5 Ke8 Nf7 f4+ Kf3 Rd4 Ne5 Ra4 Bd2 c1R Ne7 Rcc4 Bc1 Bb1 Ke2 f3+ Ke3 Ra6 Qe2 Rb6 d7+ Kf8 Qf2 Ra4 d8Q+ Be8 Qc7 Bec6 Qb7 Ke8 Qa6 Ne6 Nd3 Bc3 Ne5 Ng7 Ne2 Rc4 Ng3 Rb4 Qaa2 Ra4 Qae2
1nK1b2r/2pnRQ2/1kbR1r1b/2n2N2/1QR2PbQ/5r1p/qQ2N1BP/7R b - - 0 1 illegal: No possible last move, all moves rejected
3k4/1Q2QBqb/p2n1P2/1rNpQr2/1nNP3N/1Rb3bK/1Br1r3/N1n1Q3 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 d4 e5 g4 h5 f4 a6 Kf2 e4 Kg2 b3 c4 d6 b7 b2 f6 e3 b6 e2 f7+ Ke7 c5 e1B g5 Nh6 g6 Bg3 c6 Qd7 f5 Kd8 f6 Nf5 Nd2 b1R g7 Rb5 g8Q d5 Kh3 Qe7 Bb2 Nd6+ Qgg4 Bd7 Ngf3 Bf5 Bd3 Bh7 Qe6 Bh6 f8N Qg7 Ng6 Re8 Nb3 Bd2 Qde1 Bc3 Nge5 Ra7 Nc4 Ra8 Qf5 Re2 Na1 Rc2 Qfe6 Ra7 Be2 Ra8 Kg2 h3+ Kf1 h2 Kg2 h4 Qf7 Qg4 Qf1 Qc8 Ba3 Ne8 Qf2 Qc7 Rb1 h1N Rb3 Ra7 Bb2 Ra5 Qe1 Nf2 Bd3 Qd7 Bg6 Rb5 Qg8 Qg7 c7+ Kd7 c8N Kd8 N8d6 Nc6 Ne4 Nb4 Nc5 Nfd3+ Qe2 Bf2 Qe1 h3+ Kh2 Nc1 Nh4 Be3+ Kg3 h2 Kh3 Bf2 Qf7 Bg3 Bh5 Nd6 b8Q+ Nc8 Qa8 Rc7 b7 Re7 b8Q Re5 Qab7 Ree2 Qe5 Nd6 Bg6 h1R+ Kg4 Rhh2 Qfe6 Rhg2 Kh3 Rgf2 Bf7 Rf5 Qee7#
BB1b4/R3Bpr1/2p2nR1/2P3R1/qr3n1P/Qb3bK1/kb2RN2/3B1rnQ b - - 0 1 illegal: No possible last move
1nR5/Q5nn/Q1r3b1/5npR/PR2QqNr/Np4P1/b2Rr3/b2k1BKQ b - - 0 1 illegal: No extended proof kernel
3KQq2/QR1pN1N1/q2P3B/7p/1n1PNb2/2Q3qq/1N3b1Q/n1Rrrb1k b - - 0 1 illegal: No possible last move
2N1k1K1/Q5b1/4NBpr/q4r2/brpBn1P1/r3BP1n/RqQN2BN/3n4 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 e4 f5 c4 fxe4 cxd5 h4 g4 Qd6 Ra3 Qd8 Rg3 hxg3 Ke2 c5 Ke3 e5 d4 a5 h4 a4 b6 g6 b5 c4 h5 g2 b7 a3 b6 a2 d6 a1N d7+ Kf7 d5 Rh6 d6 Qf6 d8N+ Ke8 Rh2 Ne7 Qc2 Bd7 Nd2 Bg7 Ngf3 g1R Ne6 Ba4 Bg2 Nd7 b8N Rf1 b7 Nc5 Nc6 Ra6 Na7 Nd5+ Ke2 e3 Nc8 e4 b8Q Qb2 d7+ Kf7 d8B Ke8 Bg5 Rb6 Qa7 Rb4 Qc3 Nc2 Bf6 Ne1 Qc2 Nf4+ Kd1 Nh3 Ke2 Ned3 Bd4 Qa2 Bf6 Nb2 Bd4 Rh8 h6 Nd1 h7 Qb2 Bf6 Rh1 Bd4 Rf8 h8B Rf6 Nf1 Rf5 N3d2 Bh6 Bhf6 Bg7 Ke1 e2 f3 Nhf2 Rh7 Rh6 Nh2 Bf8 Rc7 Bg7 Rc6 Nh3 Ra6 Bb5 Ra2 Bd7 Ndf1 Ba4 Kd2 e1R Ng5 Re3 Ne6 Rc3 Ke2 Ra3 Nd2 Nc3+ Ke3 Nb7 Bb6 Nd6 Kd4 e3 Bc5 e2 Bb6 Rf4+ Ke5 Nde4 Bd4 e1Q Ndf1 Nd5 Be3 Ndc3 Nd2 Nd1 Ng5 Qb1 Ke6 Rb5 Ndf1 Qa5 Nd2 Qb2 Ne7 Kd8 Kf7 Rff5 Kg8 Rb4 Nc8+ Ke8 Ne6
1K3b1n/3b2QB/1p1P1qrq/2pQr3/1P1q1B2/3N1QN1/2Q3n1/n1qB1BkR b - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 g5 e4 f5 exf5 a4 h4 gxh4 Rh3 Bg7 Rb3 axb3 a4 Bh6 Bd3 Bg7 Qh5+ Kf8 Kf1 Na6 Na3 Bf6 Nf3 Nh6 Bb2 Ra7 Rc1 Nb8 Nb1 Bd4 Re1 Be6 Bc1 Bc8 Ke2 Bb2 Rh1 Bg7 Ke1 Ng8 Bf1 Ra8 Ng1 Bh6 Qf3 Ke8 Qd1 Bf8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 Kf4 d4+ Ke4 g4 h5 f4 e5+ d6 h3 a5 h2 f6 b2 g5 h4 f5 h3 f7 Qf6 a6 Ne7 a7 Rh5 g6 Nbc6 d5 Nd4 g7 Ng6 g8B Nh8 Nd2+ Ke3 Qc2 Kf2 Bh7 b1Q Ngf3 e4 Ne5 Nb3+ Kb5 c5 Kb6 e3 Kc7 e2 d7 e1N d8Q Rb8 a8B b6 d6 Rh6 Bf3 Na1 Bd1 Qb2 Qe7 Qd4 Qe6 Bd7 Qd5 Ng2 Ne4+ Ke1 Be3 Rg6 Ng3 Re8 Bf4 Re7 Kb8 Re6 Nc4 Re3 Nb2 Re5 Qce4+ Kf2 Qb1 Bg7 f8Q Bh6 Qfg8 Bf8 Qbe4 Qf7 Qg7 Qf6 Rg1 h1Q Qb1 Qh4 f6 h2 f7 Qf6 Qc2+ Qd2 Bfe2 Qd4 Re1 Qf1 Bb5+ Kg1 Nd3 h1Q Bc4 Be7 f8Q Qh6 Qff7 Bf8 Qf3 Kh2 Q7d5 Qfg1 Nf2 Qh1 Bf1 Qg1 Nd3 Qge3 Re2 Kg1 Rf2 Qc1 Rd2 Ne1 Rh2 Ng2 Rh1+
2r3n1/Nqq3nK/1Q1q1QQp/P2BR2Q/1b6/N1B1kpNP/6b1/r1r1Nr2 b - - 0 1 illegal: No possible last move
N3B1Rq/1K2N1p1/1n2bnb1/b4Pn1/Qnqk2P1/B2r2B1/r5p1/NB1Q2N1 b - - 0 1 legal: proof: b4 c5 a4 f5 e4 b5 axb5 h5 exf5 h4 g4 Kf7 d4 cxd4 Ra3 Ke8 Rg3 hxg3 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 d5 c4 a5 f4+ Ke4 h4 g2 f6 d3 h5 d2 b6 d4 b7 d3 b5 a4 f7 a3 b6 a2 h6 a1Q h7 Ra3 f5 Nc6 b8B Nb4 b7 Ra2 Bg3 Be6 b8N Qc3 Nd7 Nf6 Na3 Ke3 Kb5 Kd4 c5 Qa8 Kb6 Qc4 Qa4 d1N c6 d2 c7 Nb2 c8B d1B Bd3 Bb3 Bb1 Rg8 Ba6 Qe8 h8Q Qec8 Qa5 Na4+ Ka7 Qe8 Kb7 Nb6 Bb5 Qd8 Qh6 Rh8 Qg5 Rh3 Qa4 Qe8 Nb8 Qd8 Na6 Qe8 Nc7 Qd8 Bh2 Rd3 Nc2+ Kc5 Qd2 Bc8+ Kb8 e5 Qf2+ Qcd4 Qh4 e4 Nh3 e3 Be5 e2 Ba3 e1N Ng1 Nf3 Na8 Ng5 Qe1 Bd5 Rh3 Qc4 Bg3 Be7 f8N Nbd7+ Ka7 Bf7 Na1 Kd4 Ng6 Qe8 Rh2 Bd8 Ne7 Bg6 Qed1 Ba5 Rh8 Nb6 Bc6 Be6 Kb7 Qg8 Be8 Qh7 Rf8 Qh8 Rg8
b1QB4/QNp1rqq1/2k1Bp2/4QBrB/KRP3qN/1P1Q2bq/1b1nn3/8 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e6 d4 e5 Ra3 Rh7 Rg3 Rh8 dxe5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kd2 d5 Kc3 Kd7 Kb3 a5 h4 f3 c4 g3 e4 d4 b6 f2 h5 g2 b7 d3 g6 d2 e6+ Kd6 h6 Qe7 g7 Qh4 e5+ Kc5 h7 Nc6 b8Q Qh3+ Nc3 Bb7 e7 Nf6 e8B Bd6 g8B Ne4 e6 Bg3 e7 Nd4+ Ka4 Ne2 Nf3 g1Q Nh4 Ra7 b3 Ba8 Nb5 Ra6 Bb2 Rg6 Nd6 Rg5 Bf6 Qgg2 Qc2 d1Q Qd3 Nd2 Nb7+ Kb6 Rh2 Qg1 Bg2 f1Q Be4 Qf4 Rf2 Qdf1 Bf5 Qfg4 Rf4 Qgg2 Rd4 Qgg1 Rd7 Kc6 Qa7 Q1d4 Rd8+ Qd7 Ka3 a4 Rb8 Qfg2 Kb4 a3 Ka4 a2 Nc5 a1B Rb4 Nf4 Nb7 Bb2 Qdd4 Qd5 Qd3 Ne2 Be5 Ng1 Bd6 f6 Bh5 Be1 e8Q Ne2 Qe5 Bg3 Be7 Q5e6 Bgf7 Re8 Bd8 Qee7 B7e6 Qf8 h8Q Qdf7 Be7 Q8g7 Qg8 Rd8 Qh8 Rd6 Qc8 Rd7 Bd8 Re7 Bh7 Qf5 B7g6 Qfg4 Bgf5
1QQ2B1N/2n1p1Nr/7b/B4BrB/Q2pK3/kq2PQ2/q1Rbb1nP/1n4b1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 h5 g4 Rh7 g6 Rh8 b4 Bh6 g5 Bf8 Ra3 Qa5 Rg3 Qd8 Rg4 hxg4 Kf2 f5 c4 a5 g7 d5 g6 Kd7 c5 f4 b6 Kc6 b7 Kb5 c6 a4 c7 f3 Nd2 a3 Nc4 a2 Ne5 a1B Bh3 d3 Ke3 g3 Nf7 d2 Bf5 f2 Nf3 g2 N3g5 g1B Ne6 d4+ Ke4 Nh6 g8Q f1N g7 Na6 b8B Rh7 Nh8 Ng4 Qf7 Bc3 g8B Bh6 Ng7 Nge3 Qc2 Bd7 c8Q d1Q Bc7 Ng2 Ba5 Nc7 Be3 Be6 Qa4+ Kc4 Qh5 Bd2 Qf3 Qb3 Bf7 Qg8 b5+ Kc5 b6 Bc4 b7 Ra6 b8Q Rg6 Qg4 Rg5 Bh5 Bb5 Qf4 Qa2 Qf3 Qgb3 Bf4 Bc4 e3 Be2 Qcd7 Be1 Qdc8 Nd2+ Ke5 Nb1 Ke4 Bd2 Be5 Bf2 Rf1 Bg1 Rf2 Qaa3 Ne8 Qba2 Bg7 Qb4 Bf8 Kc4 Qab5+ Kb3 Ng7 Kb2 Qa4 Qbb3 Rf1 Bb4 Rc1 Bd2 Qc4 Ka3 Rc2 Qa4 Qcb5 Q4b3 Qa4+
2N1NB2/1qBnP2b/2pb1bn1/KN1rr3/2RN2rk/3p1Q2/1BP5/Qq3b1B b - - 0 1 legal: proof: b4 e5 a4 b5 axb5 h5 g4 g5 d4 Ba6 f4 Bc8 Ra3 Ne7 Rg3 Ng8 dxe5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kd2 Ke7 Kc3 d5 h4 f5 e4 a5 e6 a4 e5 c6 h5 a3 h6 a2 g6 a1B+ Bb2 f3 h7 f4 g7 f2 b6 g3 b7 f3 b5 g2 Kb4 d4 b6 d3 Na3 Bd7 Ne2 g1R Nb5 Ra3 Rh4 Qc7 Ned4 Ra5 Bg2 f1B Bh1 f2 Qf3 Rg5 Re4 Rg4 Rf4 Bc8 Re4 Nd7 b8B Qb7 Bc7 Ngf6 Rf4 Nh5 Re4 Rg8 h8Q Rg5 Rh4 Nf4 Rg4 Ng6 Rf4 Qb8 b7 Qa8 b8B Qb7 Nb3 Rg4 Rc4 Rd4 Ba7 Rd5 Bab6 Bg2 Ba7 f1Q Nd4 Qb1 Bab6 Bf1 Bc5+ Ke8 B5d6 Be7 Bc5 Bf6 e7 Kf7 Nb3 Ke6 e8N Kf7 Bf8 Ke6 Qe2 Kf5 e6 Kg5 Nd4 Be5 Qf3 Bh2 Qhh3 Bf4 Qhg2+ Kh4 Qg1 Bd6+ Rc5 Rh8 g8N Rhh5 Ne7 Rhe5 Qgg2 Ra3 Qg1 Rc3 Ka5 Rc4 Nb3 Rg4 Rc4 Nc5 N3d4 Bd7 Nf6 Be8 Nc8 Nd7 e7 Bf7 Ba3 Bg8 Ne8 Bh7 Ne2 Bb2 Nd4 Bc1 Bb2 Bg5 Qge3 Bf6 Qe1+ Rg3 Qc3 Rg2 Qa3 Rg4 Qa1
Q3n3/4n2B/1ppB3Q/3R1n2/BPb1Qr1n/1N1P1qB1/1nkb3n/KQ3r1N b - - 0 1 legal: proof: b4 d5 c4 a5 cxd5 g5 e4 f5 exf5 a4 h4 gxh4 Rh3 Bg7 Rb3 axb3 a4 Bh6 Bd3 Bg7 Qh5+ Kf8 Kf1 Na6 Na3 Bf6 Nf3 Nh6 Bb2 Ra7 Rc1 Nb8 Nb1 Bd4 Re1 Be6 Bc1 Bc8 Ke2 Bb2 Rh1 Bg7 Ke1 Ng8 Bf1 Ra8 Ng1 Bh6 Qf3 Ke8 Qd1 Bf8 g4 Kf7 f4 Kf6 d3 e5 Kd2 h5 Kc3 c6 Kb2 h3 a5 h2 d6 h4 a6 e4 a7 h3 d7 b6 Nf3 e3 Rg1 h1N Bd2 e2 Be3 e1N Nh2 Ne7 Nd2 Ba6 Qb1 Ng3 Bf2 Bc4 Ka1 Rh4 Be2 Na6 Nhf1 h2 Bd1 h1N Bc2 Rb8 a8Q Bh6 Bd1 Qf8 d8Q Nc7 Qd5 Qf7 Qe4 Ng2 Be1 Ne8 g5+ Kg7 g6 Kf6 g7 Nf2 g8B Ng4 Bh7 Nh2 Bc2 Qh5 Bf2 Qf3 Be1 Rg4 Bd1 Nh4 Rg2 Ne2 Ng3 Nd4 Nh1 Bg5 Re2 Rg1 Bg3 Rf1 Qd5 Rd8 Re5 Rd7 Qe4 Rd5 Qba2 Ra5 Rd5 b2+ Kb1 Rb5 Nb3 Bh6 Qa1 Bg5 Ka2 b1N Qb2 Nc3+ Ka1 Na4 Qb1 Nb2 Bc2 Kg7 f6+ Kh6 f5 Bd2 f7 Kg5 f6+ Ndf5 f8Q Rc5 Rd8 Rd5 f7 Rd4 Rd5 Kf6 Nc1 Kg5 Ba4 Kf6 Qg4 Rf4 Nb3 Ke6 Rd6+ Ke5 Qh6 Qf2 f8B Qf3 Rg6 Kd5 Rg5 Ke5 Na5 Kd4 Nb3+ Kc3 Rh5 Ng8 Bd6 Nge7 Qgg6 Ne3 Rd5 N3f5 Qe1 Kc2 Qe6 Ba6 Qe4 Bc4 Qb1+
3Rb1Q1/1p1NQ1RK/5q2/QP2bnB1/5npb/nQr1Pr1n/7k/bNN1N3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 d5 Bg2 e5 fxe5 a4 cxd5 Qg5 Be4 Qf6 Bc2 Qd8 Bb3 axb3 Kf2 Ke7 Kg3 f5 Kf4 c5 Kg5 f4 Kg6 c4 h4 b2 a4 f3 d4 f2 b5 f1N a5 c3 a6 g3 d6+ Ke6 h5 g2 h6 c2 d7 Ne7+ Kh5 Kf5 d5 g5 e6 g4 d6 Nd5 e7 Nc6 e8Q Nce7 a7 Nh2 h7 Nf3 Bg5 c1B Qb3 Bg7 Qg8 Be5 Kh6 Nf4 e3 Ke4 Ne2 g1B Ra6 Bf2 Rd1 Bh4 Rc6 Bd2 Rc7 Ng1 Nc1 Bdc3 Rd3 Rb8 a8N Kf3 Nb6 Kg3 Rd4 Ngh3 Rd5 Qe8 d8Q Qf7 d7 Kh2 Qdf8 Qf5 d8Q Bd7 Qf6 Be8 Nd7 Ra8 Qb6 Ra3 Qa5 Nc6 Qe7 Nd4 Nb6 Qf7 Rd8 Qf5 Nd7 Qf6+ Qg6 Rg8 h8N Rf8 Kh7 Nf5 Qgg8 Bcd4 Nf7 Bc3 Nd6 Bcd4 Ne4 Bc3 Nbd2 b1N Nf2 Bcd4 Nfd3 Ba1 Qd1 Rc3 Qdb3 Na3 Nb1 Ng1 Ne1 Ngh3 Qg6 Rf7+ Qg7 Rf8 Qgg8 Nd3 Nc2 Nd4 Nb6 Qd6 Qeg7 Rf3 Ne1 Qf6 Re7 Nf5 Nd7 Ndf4 Q7f8 Qb6 Rg7 Qf6 Qe7
2bN3r/1Pb4q/n1RN1p1N/2QRp1bQ/1b1Brk2/3Q4/Q1N1rPK1/1rn5 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 h5 gxh5 c6 b4 Na6 b6 Qd7 b5 Qd5 b7 Nb8 b6 Qd8 Bb5 cxb5 Kf1 Kd7 c4 Ke6 d4 Kf5 h4 g5 c5 a5 c6 g4 c7 e6 h6 b4 h5 b3 d5 e3 h7 g3 h6 e2+ Kg2 e1R d6 a4 d7 a3 Nh3 b2 Qd3+ Re4 Rd1 a2 Na3 b1R Be3 Ne7 Ng5 Nd5 Nc2 Qe7 d8N Na6 b8Q Ndb4 Bd4 Kf4 b7 f6 Qa7 e5 Qa3 Nd3 Q7c5 Nc1 Ngf7 Qd7 Qd3 Bd6 Kg1 g2 Rd2 Rf8 h8Q Qe7 Kh2 g1B+ Kg2 Bh2 h7 Re8 Qg7 Rh8 Qg8 Bg3 Nh6 Bh4 Qgb3 Bg5 Qa4 Rb3 Rb1 a1B Qa2 Bc3 Rb2 Rb6 Rb3 Ba5 Rc3 Rb1 Rd1 Bb4 Rc4 Be6 c8N Bc7 Nd6 Bc8 Rc3 Rf8 h8Q Qh7 Qg7 Rh8 Qgf7 Nb8 Rc4 Ra3 Qh5 Na6 Qb5 Rc3 Rc6 Rc4 Qc5 Re2 Bc3 Rce4 Bd4 Re8 Rd2 Rh8 Qdb5 Bg4 Bc3 Bb6 Rd5 Bc7 Bd4 Bc8 Qd3
Nb2rrQn/3qRp2/1Q1n2Q1/3Nk3/Npq2R1p/2bnKPQP/1q4B1/N7 b - - 0 2 illegal: No possible last move
1KQn1BQ1/2rq1kRp/2R4Q/1Bn2b2/5Q1r/1Rq1p2p/3b1P1P/N3Rbn1 b - - 0 1 illegal: No possible last move
n2QbB1N/Q3p3/K3k3/1p1Bb1rq/nQ1Q1pr1/5P2/PB1nN3/qr1R2B1 b - - 0 1 legal: proof: e4 a5 g4 d5 exd5 c5 b4 cxb4 Na3 h5 Rb1 a4 Rb3 axb3 gxh5 Bf5 Be2 Bh3 Bf1 Bc8 Ke2 Kd7 Kd3 g5 Kc4 f5 Kb5 g4 h4 g3 d4 b2 c4 b1N h6 b3 d6 b6 d5 b2 f3 f4 h5 g2 h7 Na6 c5 Qe8 h6 Bb7 c6+ Kc8 d7+ Kd8 Bc4 Ra7 Qb3 Bc8 Ne2 g1R Qb4 Rc7 Be3 Rg7 Rd1 Nd2 Bg1 b1Q Bb3 Rg5 Nc4 Bg7 Ne5 Qb2 Ng6 Nf6 Bc4 Nc5 Bb3 Rg8 h8B Re5 h7 Qa1 Bc4 Na4 Bb3 Bf8 Bg7 Rh5 Bh6 Bg7 h8B Rh4 Bc4 Rg4 Bb3 Bb7 Bc4 Ba8 Ka6 b5 Bb3 Qf7 Bc4 Ne8 Bb3 Bc3 Bf8 Qh7 Bhg7 Bd4 Nh8 Qh5 Bf6 R8g5 B6g7 Bc5 Bb2 Rc8 Bc4 Kc7 Bb3 Kd6 c7 Bc6 Bc4 Rb8 c8Q Nc7+ Ka5 Na8 Ka6 Rb7 Qb8+ Rc7 Qa7 Rc8 d8Q+ Bd7 Qdb6+ Bc6 Qc3 Bd4 Qb4+ Ke5 d6 Be8 Bd5 Rc1 d7 Rb1 d8Q Kf5 Bb7 Be5 Q6d4 Ke6 Bd5+
3N4/qQ2rqRR/1b2q1r1/3Qpn1R/8/nKQPPkbp/5Bbp/1B3R1Q b - - 0 1 illegal: No possible last move, all moves rejected
N1R2B1Q/5pQQ/1r1R4/1q1prRN1/n3p1Kb/P7/b1qP2nR/3Qkqb1 b - - 0 1 illegal: No proof kernel
1N6/1pB1p3/P3q1k1/n1n2NB1/1qN1R1Kp/5B1Q/bPrQ3q/bBNr1b2 b - - 0 1 illegal: No proof kernel
4K1QR/N1N2B2/b2rp3/7p/Q3kB2/2Nb1p1P/bqnP1B1N/rB1nn1b1 b - - 0 1 illegal: No possible last move
Q1B4Q/BK2p2b/2rB2k1/1Q1r1pp1/4R1P1/2N1r3/r2B1Pn1/Rq1bnQ1b b - - 1 2 legal: proof: d4 d5 a4 c5 e3 cxd4 Qg4 b5 axb5 d3 Qd1 d2+ Ke2 d4 Kf3 h5 g4 g6 Nc3 d3 Kg2 h4 Nce2 Bg7 Ng3 Bd4 exd4 hxg3 Kf3 a5 Ke4 g2 h4 a4 c4 g5 b4 a3 b6 f6 b5 Kf7 c5 a2 b7 Na6 b8Q Kg6 c6 Ra7 h5+ Kf7 h6 Nb4 b6 Bb7 d5 Nc2 d6 Ra5 d7 Ne1 h7 Nh6 Ne2 g1R Nc3 Rd5 c7 Kg6 c8Q Nf5 Qe5 Qc7 d8B Ne3 Qa8 Qb8 Bc7 Rg3 Bd6 Rc8 h8Q N3g2 Be2 Bc6 b7 Rh3 Bf3 Rg3 Qe2 d1B Qf1 d2 Be2 Bda4 Ba6 d1B Bd2 Rgd3 Rh3 Bac2 Re3 Bb1 Qd4 Bbc2 Qc5 Rc7 Qb5 Rc8 Rc1 a1R Rb1 Ra2 Ra1 Qc7 b8B Qb6 Re2 Bb7 Ba7 Rc6 Qc5 Qb1 Qb6 Rda5 Qb5 Re3+ Kd5 Be4+ Ke6 Bd3+ Kd7 Be4 Qc4 Rd5 Qb5 Kf7 Kd8 Bh7 Kd7 f5 Kd8 Rb6 Kc7 Bc6 Bc8 Kg6 Bg3 Bb7 Bd6 Rc6+ Kb8 Ba6 Qb3 Bd3 Kb7 Be4 Qb4 Nf4 Qb5 Bh1 Bac5 Nfg2 Ba7 Rf3 Re5 Re3 Re4
1RQ4n/3p1q2/Br1N1r1R/b1Q1NP1R/2QP2p1/5b2/Q1rk1pnb/K3Rr2 b - - 0 1 illegal: No proof kernel
r2b2k1/1pN2N2/bNPnp1rN/b4r2/3Q3Q/1P1p3K/Q1RR1q1Q/3B1n1b b - - 0 1 legal: proof: g4 c5 e4 a5 d4 cxd4 b3 f5 exf5 h5 gxh5 a4 Bb2 a3 Bc4 axb2 Bb5 Rh6 Bf1 Rh8 c4 Kf7 a4 g5 f4 d5 Kf2 d3 Kg3 d4 h4 d2 a5 g4 f6 e6 f5 Nc6 a6 Qd5 h6 Rb8 a7 Ra8 c5 Bd7 h7 Ne5 c6 Nc4 h5 Na3 h6 Qc5 Be2 Qe7 Nc3 b1R Rh2 Nb5 Nh3 Be8 Na4 Qc5 Ra2 Nd6 Nb6 Be7 Nf2 Bd8 Rc2 Ne7 Kh4 g3 Kh3 g2 Ng4 Rf8 h8N+ Kg8 Nf7 g1B Bf3 Rb8 a8N Nd5 Nc7 Ne3 Qe1 d1B Rhd2 Be2 Qh4 Bc4 Bd1 d3 Nh8 Ba6 f7+ Kh7 f6 Rg8 f8Q Bh5 f7 Ra8 Qfe7 Rg6 Qef6 Nf1 f8Q Qf2 Nf7 Ra1 Qe5 Ra5 Qd4 Rf5 Qfe7 Kg8 Qeg5 Rf6 Qa5 Rf5 Qa2 Bh2 Nge5 Bf3 Ng4 Bh1 h7+ Kf8 Qe4 Be5 Qg2 Bc3 Qh2 Ba5 h8Q+ Rg8 Qha1 Rg6 Qd4 Kg8 Ngh6+
b3r2B/3p1n1N/1N2p1pp/n3BrP1/2NP2qQ/1k1Q1N1b/1b1K2nQ/2Q1R3 b - - 1 2 illegal: No proof kernel
2r1Q3/3pQ2B/2R1QP2/K1p1q1k1/4N1b1/Q1P2r1p/1qNBnbpN/3Nbn2 b - - 0 1 illegal: No possible last move
4b2n/1r1k2Nb/1n1P4/K3b1qp/pB1RB3/Qp1r2R1/Pp1QQ3/2qQBB2 b - - 0 1 illegal: No proof kernel
q1qQRk2/1B1n1p2/Qp2r2r/2N1R1p1/BB2b1Bp/1Pb5/1P3Q1Q/1bK3n1 b - - 0 1 illegal: No possible last move, all moves rejected
1K4Qr/2Q1N3/2r3Br/npN1pBB1/1Rb3pQ/rn2P2q/1k1pQB1P/6b1 b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 c5 gxf5 h5 dxc5 Rh7 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Kd2 Kf7 Ke3 Kf6 Kd4 d5 f4 g5 c4 b5 a5 b3 c6 g3 Kc5 g2 c7 e5+ Kb6 g4 a6 b2 a7 d4 c5 d3 c6 Rh6 Nh3 g1R Nd2 b1R Ne4+ Ke7 f6+ Ke6 f5+ Kd5 f7 Kc4 f6 Bd6 f8Q Qe7 f7 Rh5 Qh6 Bd7 Kb7 Rb2 c8Q Bc7 f8B Rg3 Nf4 Qa3 Nd5 Bb6 c7 Bg1 Ne7 Na6 Nc5 Kc3 Bg5 d2 Qd8 Rf3 c8B Be6 Qc7 Bc4 Bf5 Rc2 Qf6 Rc8 a8Q Rh6 Bg2 Rfh3 Bge4 Kb2 Bg6 Qe3 Bef5 Rc3 Qe1 Ra3 Qab8 Qd3 e3 Qf1 Qe2 Rh8 Qa8 R3h6 Bh4 Qh3 Bf2 Qg3 Qh4 Qh3 Qd6 Rc6 Qc7 Nf6 Qac8 Nb4 Kb8 Ne4 Qe8 Nc2 Bg7 Na1 Qg8 Nd6 Bf6 Nb7 Bg5 Na5 Be1 Bf2 Rf1 Bg1 Rf4 N1b3 Bf2 Bf7 Ra4 Bc4 Rb4
1q4n1/pBbK2Bk/1R2R1rp/4rp2/PR1Q1R1N/q2pBB1P/2qQ4/2nr4 b - - 0 1 legal: proof: c4 c5 b4 f5 bxc5 g6 d4 b6 f4 Kf7 e4 Bb7 d5 Bc6 dxc6 Ke8 Nc3 Bh6 Nce2 Bg7 Nd4 fxe4 f5 Bh6 f6 Bf8 Nf5 gxf5 Kf2 Kf7 Kg3 Kg6 Kf4 d5 Ke5 e6 g4 b5 a4 b4 g5 d4 h3 e3 f7 e2 c7 e1R+ Be2 d3 c8Q h6 c6 b3 c5 b2 c7 b1Q c6 Nf6 Qd2 Qb3 Nf3 Nh7 Qd7 Rd1 c8B Qc2 c7 Na6 Rf1 Nf6 Nh4+ Kh7 Bf3 Ng8 Bcb7 Nb4 c8R Na2 Rc4 Qb8+ Qd6 Be7 f8B Bd8 Rb1 Bb6 Bg7 Bc7 Ba3 Nc1 Bc5 Qa2 Rcb4 Qc2 Kd4 e5+ Kd5 e4 Ke6 e3 Kd7 e2 Be3 e1Q Qd4 Qg3 Rb6 Qe5 R1b4 Qec5 Re6 Ne7 Rbb6 Qa3 Rb4 Rf8 Reb6 Rf6 g6+ Kg8 Re1 Re6 Rf1 Re5 Bf8 Qab2 g7 Kh7 g8R Qbb3 Bg4 Qa3 Bc8 Qb7 Rgg6 Rb8 Rge6 Qa8 Ba6 Re8 Rf4 Qb8 Bg7 Rh8 Bf6 Rg8 Bb7 Rg6 Bg7 Ng8 Bgf3
4Q1n1/RNRK1p1k/2p2Pp1/Bp1QQr2/p2n2P1/1b1Q1b1n/5rR1/5qRB b - - 0 2 illegal: No proof kernel
8/1B1B1nP1/B1Kb1N2/b1RBq3/1b1NRPn1/qN6/1q4k1/q1Nr1bB1 b - - 0 1 legal: proof: e4 g5 h4 gxh4 b4 a5 c4 e5 a4 b5 axb5 f5 d4 d5 cxd5 a4 Qd2 Ra5 bxa5 Qg5 Qd3 Kd8 dxe5 Ke7 e6 Ke8 e5 Qd8 Qe4 fxe4 Kd2 Ke7 Ke3 h5 Kd4 c5+ Kc4 h3 g4 h4 f4 e3 g5 h2 b6 a3 Kb5 h3 a6 c4 g6 a2 b7 e2 g7 e1B a7 c3 a8B c2 Bc4 Ba5 Be3 c1Q Ne2 Nf6 Re1 h1Q Nd2 h2 Bg1 Nc6 b8N Qg2 Nd7 h1Q Nb3 Qe8 Bb7 Qa3 Rac1 Ng4 Nf6 a1B Ba6 B1c3 d6+ Kd8 d7 Ke7 d8N Bcb4 Bd5 Rh2 Nc3 Qgb2 Na2 Rd2 Re4 Rd1 Rc5 Qeh5 Nac1 Qf5 Nf7 Nd8 Ng5 Nf7 Nf3 Qg5 Kc6 Qf5 Be2 Ba6 Nfd4 Qfh5 Bf3 Bf1 Be2 Q1h2 Bd3 Qba1 Ba6 Qhb2 Be2 Kd8 e7+ Kc8 e8B Bd6 e6 Qe5 Bb5 Kd8 Bd7 Ke7 Nh7 Nf2 Ba6 Ng4 Ng5 Kf6 e7 Kg6 e8B Kh5 Nh7 Kh4 Nf6 Kg3 Bdc8 Kh3 Bcb7 Kg2 Bd7
3BN3/2N1K2b/Nn1R2q1/2r1kPR1/6B1/Nnp1R3/b2rrNqP/3R3n b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 d5 a4 a5 bxa5 h5 c4 b4 cxd5 e6 g4 hxg4 a6 Rh5 a7 Bd6 a5 Bc5 Qf3 Bb6 axb6 Rh3 b7 Rh4 Qh3 Rh8 Qh7 Nh6 Qg8+ Nxg8 Ke2 Ke7 Kd3 Kd6 Kc4 g5 f4 c5 d4 e5 f6 b3 f7 e4 f8N e3 Nh7 g3 Nc3 e2 Ra2 e1R Kb5 b2 Nh3 b1B Nf2 c4 Bh3 g2 Rg1 g4 Nf6 g3 Re2 Ba2 Bg4 Ne7 Nb1 c3 Re3 Na6 b8N Bf5 Na3 Nc5 Na6 Rc8 a8N Re2 N8c7 Bh7 f5 Qg8 Bd2 Qg6 Nfe8+ Kd7 d6 Nb3 Rd1 g1N d5 g2 Kb4 Nh3 Rg1 Nc1 Kc5 Rd8 Rd1 g1Q Be1 Qg2 Bd2 Kc8 d7+ Kb7 d6 Nd5 Rg1 Nb6 Be1 Rc8 d8R Rf8 d7 Rh8 Re6 Nb3+ Kd6 Rf8 Ke7 Rf6 Na8 Rc5 Re3 Kc6 Na8c7 Rd6 Bd2 Rdd5 Rd1 Rd3 Ra8 Rdd5 d8R Rd4 Bc1 Rdd2 Rd7 Ng5 Rad8 Ne4 Rd4 Ng3 R8d6+ Kb7 Rde4 Nh1 Rg3 Rc2 Bg5 Rcd2 Rd4 Kc6 Ree3 Qh3 Rgg1 Qg2 Rd6+ Kb7 Bh3 Qe4+ Kf8 Qd5 Rg4 Qe4 Bd8 Qg2 Rg5 Kc8 Rde6 Kd7 Rf6 Na5 Bg4 Nb3 Ne6 Kc6 Ke7 Kd5 Ne6c7+ Kd4 Ne4 Ke5 Rd6 Qf3 Nf2+ Qe4 Rh3 Qg2 Re3+
R5N1/NK2R1nr/N2q4/Bn6/1n6/RP1nnkRB/Pprbb3/qR5N b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 d5 c4 a4 cxd5 Bd7 Qg4 Be6 Qd1 Bc8 b3 b5 Qc2 a3 Qb2 axb2 d3 Qd7 Na3 Ra7 Be3 Ra8 Rc1 Qd8 Rc4 bxc4 Kd2 Kf7 Kc3 Kf6 Kd4 g5 Kc5 Ke5 f4+ Kf6 h4 e5+ d6 g4 d4 e4 h6 c3 d5 c2 h5 c1N h7 g3 h6 g2 Ne2 g1N Bh3 c6 Ng3 Bg7 d7 Bf8+ d6 Be7 Nc2 Ra4 Nb4 Bb7 Na6 Nf3 Bd2 e3 Ba5 e2 Rd1 e1N Nh1 Qc7 d8R Nc2 Re8 Nfd4 Rf1 Qd7 Kb6 Nd3 Rb1 c5 Ka7 Qc7 d7 c4 d8N c3 Nc6 Bb4 Re7 Qd6 Kb6 Bc8 Ka7 Be6 Kb7 Ne3 Na7 c2 Re8 Kf7 f6 Kg6 f7 Kh5 f8R c1Q f5 Nb5 f6 Bc4 f7 Nc6 Re7 Bd2 Ra8 Ncb4 f8R Nf6 Rg8 Ne8 Rg1 Ng7 Rg3 Rc8 h8N Qf1 Ng6 Rh8 Ne5 Rh7 Ng4 Kg5 Nf6+ Kf4 Rg6 Kf3 Ng8 Ne1 Rg1 Be2 Rg4 Ned3 Rg1 Rh8 h7 Qe1 Nf6 Rc8 h8R Rc2 Rg3+ Kf4 Rh5 Nc7 Rhg5 Nc6 Bb4 Qc1 Ra5 Nb5 Ra1 Qg1 Rg4+ Kf3 Ng8 Qe1 Rg1 Qc1 Bc3 Rh4 Ra3 Rh7 Ba5 Ncb4 Rg5 Qg1 Rd1 Qgg3 Rg1 Qe1 Rg6 Qa1 Rb1 Rh4 Rg5 Rh7 Rg3+
k1R4N/1n1P1p2/5b2/5BR1/K1Nb1P1q/1Nr1nbq1/b3Rb1R/B1Rr1N2 b - - 0 1 legal: proof: e4 c5 g4 d5 b4 dxe4 bxc5 b5 a4 h5 gxh5 a6 Qe2 b4 Qb5+ axb5 axb5 Qd5 Ra4 Qd6 Ra1 Qd8 Kd1 Kd7 d4 Kc7 c4 Kb7 Kc2 e5 Kb3 g5 f4 e3 h4 e2 c6+ Kb6 d5 e1B d6 e4 c7 Kb7 h6 g4 b6 e3 d7 g3 h7 g2 c5 e2 h5 Qe7 h6 Qe4 Ra2 Qe7 Nd2 Qh4 Ngf3 g1B Nd4 Bef2 Bh3 e1Q Bf5 Ne7 Nf1 Nd5 Bb2 Ne3 Ba1 Be7 Re2 Na6 Ka4 Bf6 Nb3 Rg8 h8R Rg3 h7 Rf3 Nbd2 b3 Rh2 b2 Nb3 b1B Rg8 Ba2 h8N Rb8 c6+ Ka8 Rg5 Bb7 c8N Rg3 c7 Bf3 Nd6 Nc5+ Kb5 Qc3 c8R Nb7 Ka4 Qd3 Rc3 Rc8 Rc1 Rc3 Nc4 Rh3 Rhg2 Rh1 Rh2 Ng4 Rce1 B2d4 Rb1 Bgf2 Rc1 Ne3 Ng3 Rd1 Nf1 Na5 b7+ Ka7 b8R Nb7 Bg4 Qg6 Rc8 Qg8 Rc7 Ka8 Bf5 Qg6 Rh5 Qg2 Rg5 Qgg3 Rc8+
b3R1br/n2n2R1/B1P1N3/bb4P1/pR3BNR/2nkRB1q/3Bp2r/K7 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Bg7 fxg5 Nh6 g6 Bf8 g5 Ng8 Qg4 hxg4 Kd2 a5 b4 e5 c4 Ke7 Kc2 Kd6 Kb2 d3 h4 a4 f6 d2 c5+ Kd5 g7 Ke4 h5 d1B b6 d5 h6 d4 f7 d3 h7 g3 c6 g2 b7 d2 b5 Bf3 b6 d1B Ba6 Bfe2 Rh4+ Beg4 Na3 Ne7 g8B Nd7 b8R Bb7 Nf3 g1N Nc4 Bb3 Nd4 Qc8 Ne6 Kd3 Bd2 e4 Re1 Ne2 Ka1 Nc3 Ne3+ Bc4 Re2 Bb5 Re1 Bh5 Ng4 e3 Re2 Bg7 f8R Bf7 Re8 Be5 Re1 Bc7 Re2 Ra7 Re1 Ba8 b7 Ba5 Re2 Bg6 Bf7 Be4 Bh5 Bd5 Rg8 Ba2 Rg7 Bac4 Nd8 Bg8 Ne6 Qc7 Re8 Nc8 b8B Qg3 Bf4 Qh3 Re1 Rb7 Rb1 e2 Rb4 Na7 Ree7 Bf7 Re8 Rf8 h8R Bg8 Bb8 Rf2 Bbf4 Rh2 Ree7 Bf7 Rhe8 Bg8 Nf6 Rc7 Bf3 Rc8 Ng4 Nf8 Rb7 Nd7 Rb8 Bh7 Ree7 Rh8 Ree8 Bg8 Re4 Bc4 Rb4 Bb5 Re3+
N7/n1q1RK1b/2q1rP1p/4R3/2pB1RR1/rNq1B2R/n1Pp1B2/2r2Bk1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 gxh4 Qe2 Ke7 dxe5 Ke8 e6 Qg5 e5 Qd8 Qe4 fxe4 Ke2 Ke7 Ke3 a5 Kd4 d5 f4 h6 b4 c6 g4 h3 f5 e3 g5 a4 g6 h2 b6 e2 b5 e1Q g7 a3 b7 a2 b6 Rh7 Nd2 Ra3 Nb3 Nf6 g8R Ne4 Rg4 Nc3 Be3 Qc7 Nh3 Qd2+ Kc5 d4 Ng5 d3 Re1 a1R f6+ Kd8+ e7+ Kd7 Kd4 Rc1 e8R Re7 e6+ Kd6 Re2 Qe1 Rf2 Na2 Rff4 c5+ Ke4 d2 Kf5 Kd5 Kg6 Nc6 b8B c4 b7 Qg3 Bba7 Qh3 Bac5 Na7 b8B Bd7 Bed4 Qc3 Be3 Bc8 Bcd4 Bb7 Rc8 Re8 e7 Bc6 Rd8+ Bd7 Rc8 Bf5+ Kf7 Bd3 Ne6 Bh7 Rhg1 h1Q R1g3 Qe4 Rh3 Qf3 Bc5 Ke5 Rd8 Qc6 Rd7 Rd8 e8R Be7 Bb4 Bc5 Rde7 Rd6 Ba5 Bd4 Bb6 Bc5 Nf8+ Kd5 Nd7 Bd4 Bc5 Re6 Nb6+ Ke5 Bg1 Bf2 Na8 Bg3 Bge3 Be1 Rff3 Bf2 Bcd4+ Kd5 Rg5+ Ke4 Reg8 Q7b7 Bg3 Qcc7 Rff5 Qbc6 Re5+ Kf3 Rg4 Q6b6 Rge4 Qbb7 Rgg4 Qbc6 Be2+ Kg2 Ref4 Kg1 Bd3 Q7a5 Bf1 Qac7 Bgxf2+
2bNNR2/1r1p1bp1/2q1BR1r/3B1PN1/4qnp1/bPNNr1B1/K7/4Bk2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 h5 f4 f5 exf5 b5 axb5 Nh6 g4 Nc6 g5 Nb8 f6 Ng8 Qg4 hxg4 f5 Qc7 Bh3 Kd8 Bf1 Nc6 Kd2 Ne5 Ke1 Nf7 g6 Qb6 gxf7 Kc7 Kd2 Kd6 Ke1 Qd8 Kd1 Ke5 h4 Ke4 c4 e5 Kc2 a5 Kb3 d3 h5 d2 b6 Ke3 h6 Kf2 c5 d1B+ Ka2 a4 b3 a3 c6 e4 c7 e3 h7 e2 b7 e1R b8B Be7 f8N Ra6 f7 Bf3 Ng6 Be2 f8N Rd1 Bd2 Ra8 Nf4 Bf3 Bc4 Bc5 Nd3+ Kf1 Be6 Be4 Rh6 Nf6 Nh3 Bd5 Be1 Qe7 Nc3 Nh5 Ng5 Nf4 Rf6 Ra7 Rc1 Rb7 Ra1 Rg8 h8N Bc4 Nfh7 Re8 Nhf7 Bd6 Bd5 Qe4 Nd8 Re6 Rf8 Rh6 Nf6 Be7 Bg8 Bf7 Ne8 Qc6 Rc1 Rd2+ Rc2 Re2 Rd2 Re3 Re2 Rf3 Re6 Re3 Rf6 Bh5 Be6 Bf7 Ka1 a2 Ba7 Rg3 Baf2 Re3 Bg3 Bc5 Kb2 a1Q+ Kc2 Qaa6 Kb1 Ba3 Ka2 Rb8 Nh3 Qaa4 Ng5 Ba6 c8B Rb7 Bh4 Qae4 Bhg3 Rb5 Bb7 Rb4 Ba8 Bc8 Bb7 Rb5 Ba6 Rb8 Bac4 Rb7 Bcd5
1Kb1R1r1/1p6/Rb5q/1Pbrr3/r1N1NR1P/N1B2q1R/B1n5/n1nkR2N b - - 0 1 legal: proof: e4 h5 c4 d5 cxd5 f5 exf5 Rh7 Ba6 Rh6 Bf1 Rh8 g4 hxg4 b4 a5 b5 Nh6 Qb3 Ng8 Qb4 axb4 Ke2 Kd7 Kd3 Kd6 Kd4 g5 a4 b3 h4 g3 f4 g2 f6 g4 f5 b2 f7 g3 a5 Nh6 a6 Rg8 a7 Na6 f6 Nc5 Nh3 g1Q+ Nf2 g2 Rh3 Qh1 Bc4 g1B Na3 b1R Ba2 Ng4 Bb2 Rd1 Bc3 e5+ Kc4 e4 d4 Qg2 Nh1 e3 Rb1 Rd2 Re1 e2 Kb4 Ne3 Ka5 Be7 f8R Qf3 f7 Nc2 Re8 Bf2 f8R Nb3+ Ka4 Bg1 Rf4 Nba1 Ka5 Rd1 Bb2 Qd7 Bc3 c5 Kb6 c4 Rff8 Qe6 Rf4 Rb8 a8N Qh6 Ka7 Rg4 Nb6 Rd2 Rb1 e1R Rc1 Re5 Rd1 Kc7 Re1 Bc5 Re6 Bd7 Rd6 Rbg8 Rdf6 Bc8 d6+ Kd8 d7 Kc7 d8R Be3 Bb4 c3 d5 Rd4 Re8 Rd2 R6f5 Kd6 Kb8 Rd4 Ba5 Ra4 Bb4 R4g5 Rf6+ Re6 Rd1 Ke5 d6 Bed4 d7 Rh5 R4f5+ Ke4 d8N Ke3 Nf7 Ke2 Nbc4 Re5 Ra6 Bb6 Ba5 Bdc5 Nfd6 Rhg5 Ne4 Rd5 Rf4 Rge5 Rd2+ Ke1 Rg2 Kd1 Rgg3 Ne1 Bb4 c2 Bc3 c1N Rg2 Nec2 Re2 Qg4 Ree3 Qf3 Re1+
BKBN1Bqn/2rr1B1R/6bN/r2N1n1B/1b3p1R/1b3PPN/7q/3r1bk1 b - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 e5 a4 exd4 axb5 c5 Qd2 c4 Qd3 cxd3 Kd2 Ke7 e4 Ke6 c4 Ke5 b4 Kf4 c5 f5 f3 Kg3 c6 Kf2 c7 d5 g6 h5 g3 a5 b6 h4 b7 f4 b5 h3 g7 h2 e5 a4 b6 a3 e6 a2 e7 Bf5 c8B Rh7 e8B Ra7 Ba3 Nc6 b8N Nh6 g8B Rhd7 b7 Ne5 Nc3 Ng6 Nc6 Nh8 b8N Rac7 Ne5 Bd6 Rb1 a1R Nf7 Be7 Bc5 Ra5 Nc6 Bh7 Re1 Nf5 Re3 Bf8 Nh6 Qg5 Be6 Qg8 Bh5 Bg6 Nd8 Bd6 Be2 Kg2 Bd1 Kf1 Bc2 Kf2 Bb6 Bb4 Bc5 Kf1 Bf8 Kg2 Kd1 d2 Ke2 d1B+ Kd3 Kf1 Ba4 Bb3 Bc6 Kf2 Ba8 Bc4+ Kc2 Bf1 Kb3 d3 Re5 d4 Nd5 d2 Re4 Rac5 Ka4 d1R Re5 d3 Re3 d2 Re4 Ba5 Re5 Rc4+ Kb5 Bc3 Re4 Ra4+ Kb6 Bb4 Re3 Ra5 Re5 Ng7 Rf5 Kg2 Rf7 Nf5 Rh7 Kf2 Nh3+ Kg2 Ng5 Kf2 Rg1 h1Q Bf7 Qg2 Rh1 Qg1 Rh3 Qh2 Rh4 Kg1 Rg7 Rb1 Rh7 d1B Nh3+ Kh1 Ng5 Bb3 Nh3 Rd1 Bab7 Ba6 Ka7 Bf1+ Kb8 Kg2 Ba8 Kh1 Nf2+ Kg1 Nh3+
n3N3/1B1B1B1r/1pB2Brb/1b1P1N2/bPnK3R/2N2q2/3b1n2/1qkR1n1N b - - 0 1 illegal: No possible last move, all moves rejected
4qbBq/BNP3pB/1r4PN/1n1Nr3/2b1p1bk/4N1n1/1NK2B2/2b2RRr b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 Nf6 g5 Ng8 Qg4 hxg4 Kd1 Kf7 h4 Kg6 f4 Kh5 b4 a5 c4 e5 f5 d5 f6 d4 f7 g3 b6 a4 b7 e3 b5 d3 b6 e4 c6 g2 c7 a3 c5 d2 c6 e2+ Kc2 e1R Bc4 a2 Ne2 g1B Nec3 Bf5 c8B Bgc5 c7 Qe7 Nd5 Nh6 Rg1 Nd7 b8B Ra4 b7 Qf6 Nbc3 Bg6 Nd1 Qe5 N1e3 Nf6 Ba7 Ra3 b8N Qe8 Nd7 Rb3 N7b6 Ba3 Na4 Rb6 Nb2 Nf5 Be6 Ng3 Bf5 Bh7 Rf1 Bg8 Bh7 Rd1 g6 Re1 Rb1 a1Q Rg1 Rf1 Bb3 Rf5 Rf1 Bfe7 f8N Re5 Ne6 Bf8 Nc5 Be6 Nb7 d1B+ Kd2 Bf3 Kc2 Bfg4 Bd2 Bg8 Be1 B8e6 Bf2 Qa2 Ne7 Bc4 N7d5 Qa1 Rg1 Qa2 Rbf1 Qa1 Nd3 Bc1 Nb2 Qa5 Ba2 Qab5 Bb3 Qc8 Ba2 Ne8 Bb3 Nd6 Ba2 Kh6 h5 Kg5 h6 Kh4 Nb4 Bce2 Bag8 Qbe8 Nbd5 Nb5 Be6 Kh3 Bf7 Bb4 Be6 Qcd7 Bhg8 Qde7 h7 Qh4 Bgf7 Rg8 h8N Bc4 Bc8 Qh7 Bfe6 Bc5 Nf7 Rh8 Bcd7 Qhg8 Bc8 Rhh5 Nh6 Qh8 Bf7 Bf8 Bce6 Qc6 Bg8 Qe8 Bh7 Kh4 Rg2 Kg5 Bf7 Rh1 Bfg8 Kh4 Rgg1
r3rNnq/2bBq2R/rk1BB2p/2N4B/P1R1np1b/R1r3RK/5P2/2Bb4 b - - 0 1 legal: proof: d4 a5 c4 d5 b4 axb4 h4 g5 hxg5 e5 cxd5 Bh6 d6 Bg7 d5 Bf8 Qd4 exd4 e4 Kd7 g4 c5 a4 f5 e5 b5 g6 c4 g5 b3 g7 b4 g6 b2 Nc3 b1Q Bh3 b3 Kf1 d3 Kg2 b2 Ra3 d2 Nf3 d1R Nd4 Qe7 Ne4 c3 Ne6 c2 Bg4 f4 Kh3 Qa1 Bh5 b1R Rh2 Bb7 N4c5+ Kc8 Rh1 Na6 d7+ Kb8 d8B Ka7 d6 h6 d7 Bf3 Bc7 Rb3 d8R Rc3 Bd6 Kb6 Rd7 Rd5 Rg1 Bd1+ Rg3 Qb2 Nb3 Ra5 Nbc5 Nb4 Ra7 Ra6 Rc7 Nd3 Rc8 Nf6 g8R Bg7 Rgf8 Ng8 Rf7 Bf6 g7 Bh4 Nf8 Qa1 e6 Qb2 Nb3 Nc5 Rc7 Ne4 Rc4 Qa1 Nc5 Re8 Bd2 c1B Be3 Qc7 e7 Bb2 Bc1 Rea8 e8B Qe7 Ra2 Ba3 Bd7 Bb4 Ra3 Ba5 Re3 Ka7 Rg3 Bc7 Rf5 Kb6 Rg5 Ngf6 g8B Qb2 Bge6 Rg8 Nh7 Rge8 Rg7 Ng8 Rf7 Qd2 Nf8 Qd4 Rg7 Qe5 Rf7 Qh8 Rh7
n2b1N1r/2pp1Rnr/1q2R2r/3BBR2/b1RPp1K1/2Bb2nR/4P1Nk/5B2 b - - 0 2 illegal: No possible last move, all moves rejected
B2b4/kpbbPp1n/r1B2N1K/1P1N1Rn1/6N1/7p/1N2R1BB/qqqN3r b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 e5 c4 exf4 cxd5 Nc6 b5 Nb8 Qb3 Na6 Qc3 Nb8 Qb4 axb4 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 Kb6 a4 h6 d4 c4 g4 c3 e4 c2 a5+ Ka7 d6 f3 d7 f2 d5 b3 a6 b2 g6 Qc7 d8N Kb6 a7 Nc6 g7 Bb4 e5 Ba5 g5 Nb4 e6 Na6 e7 Rb8 a8B Bd7 d6 Bc6 d7 Bc3 g6 Qd6 Bf4 c1B Bg2 f1Q Nd2 b1Q Ra2 Qd4 Nh3 Nc5 Bh2 Qff2 Ne6 Rh7 d8N Ba5 Nc4+ Ka7 Nb2 Ne4 Rf1 Bf4 Nc7 Qfd2 Nf2 Rc8 Nfd1 Bd7 Nd5 Bc7 Rf5 Qa4 Nf6 Bab6 Ne6 Qdc1 Nf4 Ng5 Ng4 Qa3 Nd5 Nf6+ Kh4 h5 g8N Rh8 g7 Nfh7 N8f6 Bd8 g8B Rc6 N5c3 Bbc7 Ncd5 Nf8 Bh7 Ra6 Rf4 Qa5 Bhe4 Rh6 Rf5 Nfh7 Na4 Qac3 Re2 Qa5 Nab2 Qaa1 N5e3 Re6 Bc6 Rd6 Kg3 h4+ Kf4 h3 Kg3 Rg6 Kh4 Rg7 Kh5 Rg8 Bcf3 Ra6 Bc6 Rg7 Ned5 Rg6 Ne4 Re6 Nef6 Re3 Rd2 Re1 Kh6 Rh1 Re2
7n/Rp2p1Kp/4NnN1/1q3kBN/nbP5/qR1B2q1/RrN1P3/1NR2b1r b - - 0 1 illegal: No possible last move
1N3Rn1/n1Npp2N/p1N3KN/Pbr1bB2/1R1P1R2/pk3rBR/1n3r2/1q6 b - - 1 2 legal: proof: e4 b5 h4 c5 a4 g5 b4 gxh4 bxc5 f5 exf5 Na6 a5 Nb8 Qg4 Nh6 Qe4 Ng8 Qa4 bxa4 Ke2 Kf7 Ke3 h5 Kf4 h3 Kg5 h4 c4 a3 d4 h2 f4 a6 g4 h3 c6 Nh6 f6 Ke6 f5+ Kd6 f7 Qc7 f6 Rh7 c5+ Kd5 Bd3 Rh8 Nc3+ Ke6 Nf3 Bg7 f8N+ Kf7 Rb1 Qa7 c7 Bb7 c8R Rg8 c6 Qc5+ Nd5 Qb4 c7 Nc6 Nh7 Ke6 f7 Rf8 Ne5 Qb5 Re8 Rc8 Bf4 Qb3 Rbf1 Qb1 Kh5 Kd6 g5 Bh8 g6 Bg7 Rhg1 h1R Rg3 h2 Rh3 Ba8 Rf2 Rf1 Bg3 h1N Kg5 Bh8 g7 Ke6 Rf3 Nf2 g8N Nd1 Kg6 Rf2 Be4 Bb7 Rb3 Nb2 Rb4 Ng4 Nh6 Nf6 Bc2 Ng8 Rd8 Na7 Bd3 Nb5 Be4 Bc6 Bc2 Ra8 c8N Ra7 Re8 Rc7 Na7 Bg7 Nb6 Bf6 Na8 Kd5 Rd8 Nd6 Rc8 Bb5 Bd3 Rc3 Rc6 Rc8 f8R Bg7 Rb6 R8c5 Bc2 Nc8 Rbf6 Rd3 Rf4 Rdf3 Bf5 Bf6 Nac6 Na7 Nb8 Bg7 Nec6 Be5 Rb3 Kc4 Rb4+ Kc3 Ra4 Kb3 Nc7 Rd3 Rc4 Rdf3 Rb4+
1q6/N1p1B1Bp/3Pr1NN/5Knb/2R1pN1P/3Bb2R/k1pr2B1/1Bnb1n2 b - - 0 1 illegal: No possible last move
r2N3B/2b2BB1/pB1p2K1/1N1R1nPN/2Rnp3/P4Nkp/b3B1rq/6br b - - 0 1 legal: proof: e4 b5 d4 e5 h4 g5 hxg5 f5 c4 bxc4 Qc2 Bh6 dxe5 Na6 e6 Nb8 e5 Bf8 Qe4 fxe4 Ke2 Ke7 Ke3 h5 Kf4 c5 Kf5 a6 f4 c3 b4 c4 g4 h4 b5 c2 b6 c3 a3 h3 b7 d6 g6 Qa5 g5 Qb5 g7 Qb2 Be2 Rh4 Kg6 Qa2 f5 Rg4 f6+ Kd8 f7 Kc7 e7 Rh4 e8N+ Kc6 e6 Kd5 e7 Ke5 Bb2 Kf4 Nf3 c1B Rd1 c2 Nf6 Nc6 e8N Bd7 b8B Be6 Rd5 Be3 Nc7 c1R Ba7 Nh6 g8B Bg1 Nc3 Rg4 N3b5 Nf5 Bb6 Be7 f8B Kg3 Bf7 Ncd4 Bg7 Bd8 Bh8 Re1 Rc1 Rf1 Rc4 Rd1 Nce8 Bc7 Ng7 Re1 Re5 Bd5 Ne6 Rc1 Bc3 Qb2 Nd8 Ra1 Rb4 Ba2 Rc4 Qc2 Rd5 Qd2 Bd1 Qh2 Bb2 Bf2 Be2 Rh1 Bc3 Bg1 Ba1 Kf2 Nh5 Rg2 Nf4 Kg3 Bc3 Nb3 Bcg7 Nbd4 Nh5+
bR6/rN1NNr1p/3q2BP/p2k1N1N/2nppb1R/1r1Pp3/4n3/B3KR1R b - - 1 2 legal: proof: e4 b5 b4 c5 bxc5 f5 f4 b4 Qg4 b3 axb3 g6 b4 fxe4 f5 g5 Qf4 gxf4 b5 Bg7 Be2 Bh6 Bf1 Bf8 g4 Kf7 c4 d5 h4 e5 f6 Ke6 g5 a5 c6 e3 h5 f3 c5 d4 f7 Ne7 g6 Qd7 h6 Ra7 b6 Qd5 g7 Rg8 b7 Ra6 c7 Qc6 Na3 Qb5 c6 Nd7 b8R Qb2 Bd3 Kd6 Ne2 Nc5 Nb5+ Kd5 Nd6 Nd7 Nf5 Ng6 Neg3 Nf4 Nh5 Qa3 Bb2 Bd6 f8N Nb6 Nd7 Bb7 c8N Nc4 c7 Ba8 Rh4 Rh8 g8R Ne2 Rg1 Ra7 Rf1 Rf8 Rb1 Rf7 Ba1 f2+ Kd1 Be7 Ncd6 Bg5 c8N Bf4 Nb7 Qd6 Nce7+ Ke6 Re1 f1R Bc2 Rg1 Rf1 Rg8 Ke1 e4 d3 Rc8 Ba4 Rc6 Ndf6 Rc5 Be8 Rb5 Nd7 Rb3 Rd1 Rf8 Bg6 Rf7 Rd2 Ng1 Rdh2 Ne2 Nc8 Kd5 R2h3 Rg7 Rhh1 Rf7 Nce7+
3Nq3/q3nN1K/RR2rN1R/1Brpb2B/6P1/1RP5/Bn2nNn1/n1k5 b - - 0 1 legal: proof: d4 a5 e4 b5 b4 f5 exf5 c5 dxc5 Nc6 a4 Rb8 axb5 Nh6 b6 Ra8 b5 Nb8 Qd2 Ng8 f4 g5 g4 Na6 f6 Kf7 f5 Ke8 Qb4 Bb7 Bf4 gxf4 h3 Bf3 g5 Bg4 hxg4 axb4 Ke2 Nb8 Kf2 Nh6 Ke1 Ng8 Kd2 Kf7 Kd3 e5 Ke4 d5+ Kf3 h5 b7 h4 b6 h3 c6 h2 c7 b3 c8B b2 c3 Qe8 Bd7 Bg7 Bdb5 Nd7 b8R Rh6 b7 Nb6 Bfc4 Na4 Ba2 Ne7 Nh3 Ra5 Nd2 b1N Nf2 Na3 Nc4 Nc2 g6+ Kg8 Nb6 Nb2 f7+ Kf8 Nc4 e4+ Kg2 f3+ Kg3 e3 Kf4 e2 Kg5 Bh8 Nd6 Kg7 f8N e1N Nf7 Ng2 Nd7 Na3 Nd1 f2 Nf6 f1Q Nf2 Nc2 Nd8 Rh3 Nf7 Re3 Kh5 Re6 Kg5 Kf8 Kh6 Qg1 Kh7 Bg7 Nh5 Be5 Nf6 Ng8 g7+ Ke7 Rb1 Na1 Ra8 Na4 b8R Nb2 Nh3 Qc5 Ra6 Qb6 Nf2 Qa7 Be2 Rc5 Rb3 Qc7 Bb5 Qa7 Rhd1 h1N Rd3 Qea8 Rh3 Ng3 Rh6 Qc6 Nh5 Kd7 f6 Ne7 g8B Kc7 Nd6 Kd7 f7 Ne2 f8N+ Kc7 Nf6 Qe8 Nf7 Kb7 Ra5 Kb6 Ra4 Rc8 Ra6+ Kc5 Ng6 Rcc6 Ngh8 Rc7 Nd8 Rcc6 Ba4 Kc4 Bf7 Rc8 Bh5 Rc5 Nd1 Kd3 Nf2+ Kc2 Bb5 Kd2 Nhf7 Kc2 Rb6 Kd2 Rd1+ Kc2 Rd4 Kc1 Ra4 Nd1 Raa3 Nb2 Raa6
6q1/2BRrn1k/2BnRr1N/7p/2pqBpP1/8/1bKBR2P/2N1bRN1 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 g5 a4 d5 cxd5 Nh6 axb5 Ng8 f4 gxf4 e4 a5 b6 a4 b3 a3 Qd2 Bd7 Qe3 Ba4 bxa4 fxe3 Kd1 c5 g4 f5 b7 Kf7 a5 Kg7 a6 h5 a7 a2 e6 f4 e7 c4 e8R e2+ Kc2 e1B d6 Qc7 e5 Qb6 d7 Ne7 d8N Bb4 e6 Qb5 Bd2 Nbc6 b8B Ba3 Bg2 Qd5 Nf7 Nd8 Bc7 Nf5 e7 Rh6 Nc3 Bb2 Nce2 Nd6 Nc1 Rf6 Nh6 Qg8 Bc6 N8f7 Rb1 Rc8 a8B a1Q Be4 Qa7 Bac6 Qd4 Rd8 Ra8 e8R Ra7 Re6 Kh8 Rd7 Be7 Bf3 Kh7 Ra1 Rb7 Ra5 Bf8 Rae5 Be7 Re2 Bd8 Bb8 Ba5 Bc7 Bac3 Be3 Be1 Bd2 Rb8 Bg2 Re8 Bgd5 Re7 Be4+ Kg7 Nf3 Kh8 Rf1 Kg7 Ng1 Kh8 Bed5 Kh7 Be4+
B2N4/2R1RK1P/qr4Rr/1RPkB3/2b1r1N1/nnb3N1/bNrBp3/3r4 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Bg7 fxg5 Nh6 g6 Bf8 g5 Ng8 Qg4 hxg4 Ke2 d5 Kd3 Kd7 h4 Kd6 b4 a5 c4 e5 b6 g3 b7 a4 h5 g2 f6 a3 b5 a2 b6 Ra4 g7 Nc6 b8R Nge7 g8N Rh6 f7 Na7 b7 Qb6 g6 Bg7 f8N Nf5 Ne6 Qa6 Ne2 g1R Nf6 Nb5 Bd2 Na3 Bg2 Rc1 Ng4 Rc2 Nd8 Be6 Rc1 Rb4 Ng3 Rb6 Nc3 e4+ Ke2 e3 Kf3 e2 Kf4 d3 Kg5 d4 Na4 Be5 g7 Bf7 Rab1 a1R Rb5 Rb1 g8R Rb4 Nb2 Ra4 Ba5 d2 Rg6+ Be6 Bf3 d1B Bd2 d3 Rc8 Bh8 Rc7 Nd4 b8B Nb3 Ba8 Bc3 Ra1 Rb7 c5+ Kd5 Re7 Re4 Be5 Bg8 Nc6 Rb6 Kf6 Rc1 Kg7 Bc2 Kf8 Bb1 Ke8 Rc2 Nd8+ Rb7 Kf8 Ba2 Rg1 Bf7 Rc6 Rb6 Rcc7+ Rhc6 h6 Be6 Be3 d2 h7 d1R Bd2 Bc8 Rb7 Rh6 Kf7 Bf5 Rf1 Bd7 Rf6 Bc6 Rg6 Bd7 Rb4 Bb5 Rec7 Bc4 Rb5 Nd4 Re7 Nb3 Rbc7+
BBr4r/N2b1K1R/1Nb3PN/6qn/1R2NR2/R4P2/1pk2nrr/5qbB b - - 0 1 legal: proof: c4 a5 f4 g5 g4 h5 b4 d5 cxd5 axb4 fxg5 f5 g6 f4 g5 f3 exf3 Rh6 Qe2 Rh7 Qg2 Rh8 Qg4 hxg4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 b5 a4 b3 h4 Kb4 d4 c5 h5 g3 d6 c4 h6 g2 g7 e6 d7 c3 h7 c2 g6 b2 d5 Kb3 a5 b4 d6 Ra7 a6 Nf6 g8N Nh5 Nc3 b1B Nge2 g1R Ng3 Rg2 Bf4 c1R Na4 Kc2 Rh4 b3 Ra3 b2 Ne4 Qe7 d8N Bd7 Nh6 Qg5+ Nf5 Bc6 d7 Bc5 Nb6 Bg1 Bg3 Rc7 a7 Rc8 a8B Na6 Rf4 Nb4 Kd6 e5 Ke6 Re1 Kf7 Nd3 Nh6 Nf2 Bh2 Re3 Bg3 Rh2 Bg2 Re2 Bh1 Ba2+ Ne6 Bb3 d8R Bba4 Rd4 Bd7 Rb4 Bac6 Nc7 Rg2 Nf6 e4 Nb5 e3 Ne4 Rd2 Na7 e2 Bh2 e1Q Bg3 Qf1 Bh2 Rhd8 h8R Re8 Rh7 Rh8 Rh4 Nd1 Bc7 Rh2 Be5 Rdg2 Rf4 Nf2 Bb8
2r1RBn1/3qB1K1/1pB2R2/Pk3P2/Rqr1N3/1B1rNb1N/6Nb/1rb3q1 b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 h4 Na6 g4 Nc5 f5 Ra3 h5 Nd7 Qf3 Ra8 Qf4 gxf4 g5 Ne5 Nc3 Qd7 Nb1 Ng6 hxg6 Qd8 Kf2 Kd7 Kf3 c5 Kg4 e5 Kh5 h6 d4 f3 a4 e4 d6 Kc6 a5 b3 g7 e3 Kg6 f2 f7 e2 d7 e1R Ba3 c4 d5+ Kb5 d6 h5 Nh3 h4 Bg2 f1R Nd2 c3 Nc4 c2 Ne3 Qc7 d8R c1B d7 b6 Be7 b2 Re8 b1Q d8N Bb7 Ne6 Rd8 Nef4 Rd3 Ra4 Qd7 Rh2 Qb4 Bc6+ Ka6 Nfg2 Rf4 Rh1 Rc4 Rg1 Re2 Re1 Rb2 Rh1 Rb1 Rh2 Nh6 g8N Bg7 f8B Be5 Rh1 Bh2 Nf6 Ng8 Kg7 Ba8 g6 Bb7 Bf3 Kb5 Ne4 Bc6 Nhg5 h3 Rd1 Rdb3 Rd6 Rd3 Re6 Bg3 Rd6 h2 Nh3 h1Q Rf6 Bh2 Kf7 Qg1 g7 Bb7 Kg6 Nh6 g8B Bd5 Bf7 Ng8 Kg7 Bb7 Bd1 Bd5 Bb3 Bc6 Nc5 Bf3 Ne4 Rh4 Bd5 Rc8 Nd2 Rhd4 Ne4 Rdc4 Bc6+
RKBB4/2B2qN1/3Pb1P1/4p2b/RnN2rNr/RpN2k2/1b2qR1r/6q1 b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 f4 d5 cxd5 f5 exf5 Kf7 f6 Ke8 h4 Na6 g4 Nc5 f5 Ra3 h5 Nd7 Qf3 Ra8 Qf4 gxf4 g5 Ne5 Nc3 Qd7 Nb1 Ng6 hxg6 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 b5 d4 c5 a4 h5 g7 c4 g6 e6 f7 h4 f6 b3 a5 c3 a6 h3 a7 f3 Rh2 f2 Nf3 b2 Ne5 b4 Ba6 f1Q Bf4 b3 Ra4 c2 Nc3 c1Q Rg2 Ne7 g8N b1R Nh6 h2 Nhg4 Bg7 f8N h1B f7 Qc7 Ra3 Rb8 a8R Rh4 Bh2 Bd7 Bc8 Rb4 R8a4 Rb2 Bg3 Nc6 Nc4+ Ke7 Bh2 Qf2 Bg3 Qcg1 Be5 Qe2+ Kf4 Rd2 d6+ Kd8 d5 Qca7 Rh2 Bf3 Rg2 Bh8 Bb7 Bc8 d7 Ke7 Bc7 Bd4 Ba6 e5+ Kf5 Rc2 Ne6 Qb7 d8B+ Kd7 Na2 Bb2 f8R Rd2 d6 Qba7 Nge3 Bh5 Nc3 Rc2 Ng4 Qaf2+ Kg5 Qf7 Ng7 Rd2 Nce3 Rf4 Nc4 Nb4 Re8 Kc6 Rg8 Be6 Bc8 Re4 Re8 Qg8 Kf6 Rf4+ Ke7 Kc5 Rf8 Kd4 Re8 Bf7 Kd7 Rc2 Nd5 Ke4 Nc3+ Kf3 Rf8 Nd3 Kc6 Be6 Kb7 Qf7 Kb8 Nb4 Rf2+ Kg3 Be7 Qee1 Bd7 Qgf1 Kc8 Rc1 Rg2+ Kf3 Kb7 Qff2 Rfa8 Qee2 Bc8 Rch1 Bed8 R1h2 Kb8 Qg1 Rf2+
B7/k2K2n1/1b4B1/1rrR1NPq/1qr4N/4rRRP/B2p1p1r/1RB2nN1 b - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 axb5 c5 fxg5 Be6 g6 cxd4 e4 d3 g5 d4 Qg4 Bd5 exd5 hxg4 Kd2 Kd7 b4 Kc8 c4 Kb7 g7 e5 b6 f5 d6 a5 b5 e4 c5 a4 d7 g3 Bb2 g2 Ra2 f4 Ba1 a3 Bb2 f3 Bc1 Qe7 d8R f2 Rd5 Nh6 g8B Ra4 c6+ Ka8 b7+ Ka7 c7 Rc4 c8B Na6 b8N Nc5 Bg4 Ne6 Bh5 Ng4 Bg6 Ng7 h3 Ne3 Rb2 a2 Rb3 a1R Rc3 Ra5 b6+ Ka8 b7+ Ka7 Be2 Rb5 Bf3 Qb4 Rh2 Bc5 Nc6+ Kb6 Ne7 Ka7 b8R Bb6 B8f7 Rhc8 Nf5 R8c7 Rf8 R7c5 Rh1 Nf1+ Kd1 d2 Ke2 d1R Nd2 e3 Kd3 e2 Ke4 d3+ Ke5 e1R+ Kd6 Re8 Kd7 Re3 Be4 Rde1 Ndf3 d2 N3h4 Rd1 Rdd3 Rde1 Ba8 Rd1 Rd5 Rde1 Ne2 g1Q Rb3 Qg2 Ng1 Qf3 Rb1 Rd1 Rh2 Qh5 Rg2 Nh2 Rg3 Rf1 Ngf3 Rh1 Ng1 Nf1 Re8 Rd3 Ree3 Rh2 Ref3 Re3 Rd3 Rc2 Ba2 R2c4 Rd5
k2B2R1/2RP1Npr/B1r1N1q1/p1R1r2n/2p3nq/BP2brB1/4K1N1/2N5 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 Nh3 f5 Ng1 h5 Qb3 f3 Qb4 Be6 Qe4 f4 Qf5 Bc8 Qg5 Bf5 gxf5 Nf6 Qh4 Ng8 Qg4 hxg4 e4 Kd7 d4 Kc8 h4 Kb7 f6 c5 e5 a5 b3 g3 f7 g2 b6 Na6 d6 Ra7 e6 Qc8 e7 Rh7 e8R Ka8 d5 Re7+ Ne2 g1R b7+ Kb8 h5 Rh6 Nc3 Nc7 Na2 Rgg6 Ba3 Re5 Rc1 Qd8 d7 f2+ Kd1 f3 Nf4 Ne6 Ba6 Rh8 h6 Nf6 Ng2 Ng4 h7 f1Q+ Kd2 Be7 Rg8 f2 f8N Nf4 Rh3 Rd6 Rhc3 Bg5 Ne6 Qe8 d8B Qg6 R1c2 Qh1 Nc1 f1R Rc4 Rb6 d6 Rf3 d7 Qh4 Kd1 Nh5 R4c3 Be3 Ke2 Ka7 b8B+ Ka8 Rc4 Ref5 Bg3 Rg5 Rb4 Rd6 Rb7 Rc6 Rc7 Rgf5 Rd2 c4 Rd5 Rg5 Rc5 Re5 Re8 Rhf8 h8N Rg8 Nf7 Rh8 Rf8 Rh7 Rg8
1R2B3/nb2NpB1/B2q3p/B4K1P/2PN1pr1/4qq1N/1k3Rn1/1NRn2q1 b - - 0 1 legal: proof: d4 a5 e4 d5 a4 b5 axb5 c5 Be2 cxd4 Bg4 d3 Be2 d4 Bf1 Ra7 f3 g5 Qd2 e5 Qe3 Rd7 Qf4 Rd5 exd5 e4 Qh4 Ba3 f4 Bd6 Qf2 Be5 fxe5 Bh3 Qg3 Bc8 Qf4 gxf4 Kf2 Kd7 g4 h6 b4 d2 h4 d1Q d6 Ke6 d7 Kd5 h5 d3 e6 Kc4 e7 a4 e8B a3 b6 a2 b5 Ne7 g5 Ba6 b7 Kb4 b6 d2 g6 Qc7 d8B Rg8 g7 Qe5 Rh2 Ng6 Nh3 Qd6 Bb2 Nc6 b8N Nh4 b7 Ng2 Ba5+ Ka4 Be2 e3+ Kf3 Qh1 Ke4 d1N c3 Kb3 Kf5 Na7 Nc6 Qg1 b8R+ Bb7 Bb5 e2 c4 e1Q Ba6 Qee3 Bf6 Qgf2 Nd4+ Kb2 Be5 Qff3 Bf6 Rh8 g8N Rh7 Be5 Rg7 Ne7 Rg4 Bg7 Qc3 Na3 Qce3 Rc1 a1Q Nb1 Qg1 Bb6 Qaa3 Ba5 Qae3 Rh1 Qh2 Rf1 Qhg1 Rf2+
b2n4/BqpN1r1q/qP1rNR2/1R1R4/2Pbq3/1KN1knn1/R1p5/2N2BB1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 axb5 f5 exf5 d4 Qb3 Ba6 Qf3 Bc8 Qc3 dxc3 Kd1 Kf7 Kc2 Kf6 f4 a5 b4 e5 g4 h5 d4 e4 b6 e3 b5 a4 b7 e2 d5 e1N+ Kd1 h3 d6 a3 b6 h2 d7 h4 Ne2 h3 Ra2 Qe8 d8R Ne7 Rd5 Nbc6 b8B Rh6 Ba7 Nf3 Kc2 Bg7 Kb3 c2 Nbc3 Nd8 Bb2 Ba6 Nc1 Bb7 Rg1 h1Q g5+ Kf7 g6+ Kf6 Ba1 h2 Rg5 Qg2 Rb5 h1Q Rh5 Bh8 g7 Rh7 g8R Rf7 Rhg5 Qh7 Rf8 Rb8 Rd5 Ba8 Bb2 Qc6 Rb5 Qb7 Rh5 Kg7 f6+ Kg6 Rhd5 Nf5 Ba1 Ng3 f5+ Kg5 Bb2 Rg7 f7 Kf4 f6 Qgh1 Rg8 Ke3 f8N Rf7 Ne6 Qe4 Rg6 Qh7 Ba1 Nc6 Bb2 Rd8 Ba1 Rd6 Bb2 Rfd7 f7 Nd8 f8N Bd4 Rf6 Rg7 Nd7 Rf7 Na4 Bc5 Be5 Bd4 Ra1 a2 Nc3 Nf5 Bh2 Ng3 Rb1 a1Q Rb2 Qa5 Ra2 Qaa6 Bg1+
1n2bKbN/r3p1BB/3p2Rb/1R6/n1RNB2r/1P1P1B2/rrbk4/NRq5 b - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 b3 gxh4 Qe2 b4 Qe5 c5 Qb2 c4 a3 c3 axb4 cxb2 b5 Qa5 Ra3 Qc7 Ra1 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Kd5 Kf4 c4 a5 g4 h5 f6 a4 g5 a3 b6 h3 c5 h2 g6 h4 b7 h3 f7 d6 c6 a2 d3+ Kg4 f4 Bd7 f5 Qc7 g7 Qc8 c7 Qd8 c8B Be8 Ke6 Ra6 f6 Rb6 Bg2 Nh6 g8B Ra6 Bh7 Nf5 Na3 b1B Bh6 Ng3 Bg7 Kf4 Nf3 Ke3 Rg1 h1B Nd4 h2 Bge4 Ne2 Nac2+ Kd2 Rg6 Nc3 Bd7 Rg8 Bdc6 Ra7 Bf3 Qc7 Bce4 Na6 b8R Na4 Rb5 Nb8 Ne3 Bc2 Rb1 Bd1 Nec2 a1R Nf5 Ra3 Na1 Bc2 Nd4 Qc5 Bh8 Bg7 f8R Ra2 f7 Bh6 Bg7 Rh8 Rg8 Qa3 f8N Qc1 Rg4 Bg2 Rf4 h1R Ng6 Rh4 Rg4 Bc6 Rc8 Be8 Rc4 Rf8 Nh8 Rf4 Be2 Rf2 Rg6 Bf3 Bd1 Bh5 Bdf3 Rfh2 Rf6 Bhf7+ Kf5 Ke1 Bg6 Bg8 Bh7 Bd1 Rg6 Rhb2 Re6 Bc6 Kg6 Bc2 Rf6 Bd7 Re6 Kd2 Rf6 Bd5 Re6 B7c6 Kf7 Bd7 Kf8 Be8 Rf6 Bg8 Rg6
qBBRN3/ppK1bkn1/R7/3rrbp1/Rb6/N5PB/4RPn1/1b1N1N1n b - - 0 1 illegal: No proof kernel
r1R1n3/3rB3/kR1n1N1r/1p1B2pb/nPnB2R1/1R1Nn1P1/2N3p1/K4Bb1 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 a5 b5 g3 h4 Qa4 h3 Qe4+ Qe7 Qf3 Qc5 Qg2 Qb6 axb6 hxg2 Kd1 Kd8 Kc2 g5 d4 f5 e4 a5 b4 c5 Kb2 c4 h4 f3 h5 a4 d6 f2 d5 f4 h6 f3 h7 Kd7 e5 Na6 b7 Ne7 Ne2 Nf5 Nf4 Nc7 Nd3 Ne8 Ra3 c3+ Ka1 c2 Rb3 a3 Be3 c1N Bd4 a2 Rh4 Ne2 Na3 Nc3 Nc2 Na4 b8N+ Kd8 d7 Kc7 d8B+ Kb7 e6 Nfd6 e7 Bg4 Rh6 Bh5 Nd7 Ka6 Nf6 Ra7 Rg6 Rd7 Rh6 Rg8 h8R Rg6 Be2 f1N Rg8 Ng7 e8B f2 Be7 Ne3 Bf1 Nec4 Bf7 Nge8 Be6 Bd1 Rh4 Bh5 Rg4 Rh6 Rg6 Bg7 Be2 f1N Bg8 Nfe3 Bf1 Ne4 d6 Bh8 Nd5 Be5 Nf6 Bf4 Bd5 Be5 Bb2 Bd4 Bc3 Nf5 Bb2 Bg1 Be5 Nfe3 Bd4 Rd8 d7 Ne4d6 Nb2 Ra8 d8R Ra7 Rb8 Rd7 Nd3 Ne4 Bb2 Ka7 Nh7 Nac5 Rgb6 Ne4d6 Bg7 Ne5 Kb2 a1R Rc8 N5c4+ Kc3 Ra2 Bd4 Ra6 Nf6 Ra5 Rb1 Na4+ Kb3 Ra6 Ka2 Ra5 Ka1 Ra6 Rbc6+ Kb7 Rb3 Ra8 Rb6+ Ka7 Rb7+ Ka6 Rb6+
B3rB2/p1B1R1B1/3N1n2/2p1K3/P3b1N1/qr1pb3/k1pRPRn1/2rq2NR b - - 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 e5 dxe5 g6 f5 Ba6 Qd4 Bb7 fxg6 Ba6 g5 Bc8 Qg4 hxg4 Kf2 Ke7 Ke3 Ke6 Ke4 c5 h4 g3 a4 d6 b4 g2 g7 c3 g6 c2 h5 Ne7 g8R Nf5 b5 Nd7 h6 Nh4 g7 Rb8 b6 f5+ Kf4 Kd5 b7 Kc4 e6 Kb3 e7 d5 e8R d4 h7 d3 Re7 Nf6 Na3 Qa5 Ke5 f4 Nc4 f3 Bh6 f2 Rd1 Ka2 Rd2 Bf5 Nd6 Re8 b8B Qb4 Bc7 Qa3 Re6 Be7 Rf8 Be4 g8N Rb8 Bg7 Rb3 Nh6 Bd8 Rf7 Re8 h8B Be7 Bf8 Bd8 Nf3 g1Q Bg2 f1R Ng4 Rc1 Bhg7 Qd1 Ng1 Be7 Bf3 Bd8 Ree7 Ng2 Re6 Nh7 Rf4 Bg5 Re7 Nf6 Rf5 Be3 Rf4 Bg6 Ba8 Be4 Rf2
2rn2QN/4RB2/1R2r2q/3rkP2/2R1b2R/b1R1n1Pq/1Q1bK3/Rq2n1R1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 b3 h5 Ba3 h4 Bd6 Nh6 Bg3 Ng8 Bf4 gxf4 Nc3 Bh6 Ne4 Bf8 Ng5 Ba6 g3 h3 N5f3 Bb7 Nh4 Bc8 Ng2 hxg2 d4 Kf7 h4 c5 h5 a5 b4 e5 d6 e4 d7 c4 h6 e3 b6 c3 b5 a4 d5 c2 d6 c1Q b7 f3 b6 a3 h7 f2+ Ke2 a2 Nh3 g1R Nf4 Ra6 Qd2 Nc6 b8R Qb1 b7 Nge7 Ng6 Qdb6 d8Q Nd5 d7 Ba3 Qb2 Rf8 Bg2 Rd1 h8R Re8 R8h5 Re6 Be4 Ra8 R5h4 Rd4 Qh8 Nd8 Rg1 Qd6 Bd3 Qf4 Bc4 Qh6 Kf3 e2 Bb3 Nc6 d8R Ne3 Re8 e1N+ Ke2 Nd8 Bc4 Bd7 Rc8 Rd5 b8R Bc6 Rb6 Bb7 Rcc6 Rc8 Bb3 Rdd6 Rc5 Be4 Rc4 Rd5 Rc3 Red6 Re5 Re6 Qh7+ Ke8 f7+ Kd7 Nh8 Ke7 Qg8 Kf6 Rd3 f1Q+ Kd2 Ra5 Rc3 Qh3 Ke2 Rb5 Rec5 Ra5 R5c4 Ke5 f8R Rd5 Re8 Qc1 Rb1 a1B Qc2 B1b2 Ra1 Qb1 Re7 Bc1 Qb2 Bd2 Ba4 Qa2 Be8 Qb1 Bf7
7R/nNnPBK2/rNPrQ3/bnN1r3/n1N5/2Nq1bb1/8/QrN1N2k b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 h5 exf5 c5 g4 Qc7 gxh5 Qd8 c4 Kf7 b4 Ke8 b6 Bb7 b5 Bc8 Ra4 d5 Rb4 cxb4 c5 Nh6 Be2 Ng8 Bc4 dxc4 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 g5 f4 a5 c6 g4 h6 g3 h7 g2 f6 a4 f7 c3 f5 c2 f6 b3 b7 b2 d5 a3 b6 a2 d6 a1R Nf3+ Kh3 Qd5 g1R Nc3 Kg2 h4 b1N h5 e6 h6 Qe7 Ba3 Na6 b8N c1N b7 Rf1 Nd7 Nc7 b8N Ne2 Na6 Rd1 Nb4 Qd8 Nc5 Nd4 Nba2 Ra6 Nc1 Ndb5 Nb7 Ne7 Rh3 Bg7 f8N Rd3 Nd7 Re8 h8Q Bf8 N3e2 N1c3 h7 Na4 f7 Rb1 Kf6 e5 Nb6 e4 Qe6 e3 Nc3 e2 Ne1+ Kg1 Rh5 Bh6 f8N Bf4 Nfd7 Bg3 Kf7 Rd5 Ned3 e1B Nd7c5 Bd7 Qg7 Nc8 h8N Nca7 Ng6 Re5 Rh8 Rd5 Nd1 Ba5 Ne1 Bc8 Nc3 Rd2 Qa2 Bg4 Qe6 Bf3 Ne5 Rd1 Nec4 Rd2 Qeg4 Re5 Qe6 Qd7+ Qe7 Qh3 d7 Kh1 Qe6 Qh7 N5e4 Rd3 Be7 Rd6 Nec5 Rh5 Nd1 Qe4 Qa1 Qd3 Rc8 Rg5 Nc3 Re5 Rh8+
5bR1/3nPbq1/1nR2Bkr/n1rP1RNQ/2bn3b/2R1p3/1R4K1/Q3RR2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 g4 Ba6 gxh5 Bc8 d4 f5 e3 e4 Bd3 Ba6 Nd2 exd3 e4 Bb7 e5 Bc8 Ne4 fxe4 Kf1 Kf7 h4 a5 b4 g5 f4 c5 d6 c4 h6 d2 h7 e3 h5 a4 e6+ Kf6 d7 a3 f5 c3 e7 g4 d5 c2 h6 g3 b6 a2 b5 Qe8 d8R Kf7 b7 Qd7 b6 Ra5 f6 Kg6 f7 Qg4 Nh3 Nd7 b8R Ba6+ Kg2 Rc5 b7 Bc4 Re1 Nb6 Ng5 Nf6 Bb2 c1N Rdc8 Ne2 Rc6 Nd4 Rc1 a1N Rbc8 Nab3 b8R Na5 Rb7 Rg8 h8Q Rg7 Qa4 d1B Qa1 Rh7 Rf1 Bc2 Rce1 Bf5 Bc3 Be6 Rbb8 Nfd7 Qe5 Bg7 f8R Rh8 R8f5 Bf8 Kg1 g2 h7 Qg3 R8c7 Qg4 Kh2 g1B+ Kh1 Na8 Rb2 Bf2 Kh2 Bg3+ Kg2 Nab6 Rc8 Qh4 R8c7 Qh6 Rc8 Qg7 R8c7 Rg8 h8R Bh4 Qh2 Ndb3 Bf6 Nd4 Qh3 Bf7 Qf3 Qh6 Qfd1 Rg7 Rc8 Rh7 Rg8+ Qg7 Qe2 Rh6 Qg4 Ba6 R8c7 Rb5 Rc3 Rc5 Rc6 Bc4 Qh5+
2b3Qb/1NQ2r1n/qR1rN2n/1rN1p2B/2p2N2/3np1PK/4k1P1/NN1N4 b - - 0 1 illegal: No possible last move
b2N2q1/1pq4p/N1p1B1Q1/1kQ2r2/1P5B/4Ppb1/7Q/KQrQB1N1 b - - 0 1 illegal: Other
nBR1R3/b1bQRP2/1nqqb1Q1/1B6/p1Q2n2/1P1Q4/3Q4/BK1nk1b1 b - - 0 1 legal: proof: d4 b5 c4 d5 cxd5 Kd7 e4 a5 a4 Ra7 axb5 Ra8 d6 Ke6 d7 Ra6 d5+ Kf6 Qh5 Re6 d6 Re5 Qe2 Rd5 Qd1 Ke6 exd5+ Kf6 f4 g5 g4 Kg6 Nc3 f5 Ne4 fxe4 f5+ Kf7 Nh3 h6 Nf4 Rh7 Ne2 Rg7 Ng3 Rg6 Ne2 Re6 Nd4 Re5 f6 Rf5 gxf5 g4 Ne6 Qe8 Ng5+ hxg5 Kd2 Qd8 Ke2 Qe8 Ke1 Qd8 Kd2 c5 Kc2 e5 h4 e3 h5 c4 b3 a4 b6 e4 b7 c3 h6 g3 h7 g4 h8R e2 Bh6 e1N+ Kc1 e3 Bg5 c2 Bd3 e2 Rg1 g2 Rh5 g3 Rb1 Ne7 Rh8 Na6 b8B Nc7 Bb5 Na8 Qd4 Bh6 Rh1 g1B Re8 g2 Qc4 Ba7 Rh2 Qb6 d8Q g1B d7 Ng2 d6+ Nd5 Rh4 e1N Rhe4 Qd4 Qb6 Qc5 d8Q Ne3 d7 Qd6 Qdc7 Nd1 d8Q+ Bd7 Bd2 Bf8 Bc3 Ng2 Ba1 Nf4 Qbd4 Be7 Qd2 Be6 Qcd7 Ndb6 Re1 Ne3 Kb2 c1Q+ Ka2 Qc3 Rbc1 Nd1 Kb1 Qf3 Re5 Qfc6 Re2 Qdc7 Q7d3 Q7d6 Qc8 Bd8 Re7+ Kf8 Qd7 Bc7 Re5 Kg8 f7+ Kg7 f6+ Kh6 Re4 Kh5 f8Q Kg4 f7 Kh4 Qh6+ Kg4 Q3c2 Kf3 Qg6 Ne2 Qc2d3+ Kf2 Rh4 Kf1 Rh8 Kf2 Rhe8 Kf1 Qb2 Ke1 Qbd2+ Kf2 Qh7 Qb7 Qcd5 Bd8 Qa2 Ke1 Rc8 Bc7 Qhg6 Qbc6 Q5c4 Nf4 Qad2#
Qb4B1/bNNNqP2/r3P1r1/2p5/2b5/BQBpnQ2/5N1r/1q1NK1k1 b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 d5 c4 h5 cxd5 Nd7 d4 Rh6 d6 Rf6 gxh5 Be7 d5 Bf8 Ra4 Nb8 Rd4 Rh6 b4 Rh8 e4 exd4 h4 f5 e5 a5 Rh3 a4 Re3 Nc6 Re4 Na5 bxa5 fxe4 f4 Kf7 f5 g5 f6 c5 d7 e3 b6 a3 b7 e2 b8N a2 a6 a1R d6 Ke6 a7 Kf5 h6 Ke4 h7 g4 h5 g3 h6 g2 Ba3 Ke3 Nh3 g1B Nf2 Qe7 d8N Bd7 Ne6 Bh2 Nc3 Bb5 d7 Bc4 d8N d3 Nd7 Rb8 a8Q Rb6 Bg2 Rc6 f7 Nf6 Nc7 Nd5 Nb7 Rg6 e6 Bg7 Qa4 Bge5 Qb3 Ra2 Bh3 Ra8 h8B Ra6 h7 Rd2 Na8 Bb8 Nc7 Ba7 Bf5 Kf3 Bg7 Kg2 h8Q Kg1 Qa8 Ne3 Be5 Rg2 Bh7 Rg6 Bg8 Ra2 Ne8 Bf4 Bg7 Bfb8 Nc7 Rb2 Qdc2 Ra2 Ncd1 Rb2 Bc3 Ra2 Kd2 e1Q+ Kc1 Qd2+ Kb1 Ra5 Nh1 Ng2 Qcb2 Qf4 Qe2 Ra6 Qf3 Rd2 Kc1 Qe5 Bcb2 Ne3 Bd4 Rdg2 Nhf2 Rh2 Kd2 Qh8 Ba1 Qb2+ Ke1 Qb1 Bc3
1B2N3/pP3r1n/k4PK1/1b3Nb1/3B1q1q/2Q2NQ1/1QBbpr1p/N3N3 b - - 0 1 legal: proof: c4 b5 a4 c5 axb5 d5 cxd5 f5 e4 Bd7 exf5 Na6 b6 Rc8 b7 Rc6 h4 g5 b4 Qc7 h5 Qc8 Rh4 Nc7 b8Q Na8 Qxa8 Bh6 Ra3 Bg7 Rah3 Qd8 Rh1 Bf8 g4 h6 R1h3 Ra6 Rg3 gxh4 g5 Rb6 g6 Rc6 Rg5 hxg5 Ke2 e5 Kd3 g4 Ke4 h3 f4 h2 d4 g3 h6 c4 f6 g2 g7 c3 f7+ Ke7 h7 Kd6 b5 Kc7 f5 Kb6 d6 c2 d5 Be6 d7 Rd6 Qe1 Rc6 d6 Be7 f8Q Bg5 Qg3 Rc7 Bf4 c1Q Qc6+ Ka5 b6 Bc4 b7 Be6 Qcc3+ Kb6 Nf3 g1B Qf6 Nh6 g8N Qf8 d8N Rc8 d7 Qd2 Bd3 Rc5 Nf7 Qc1 d8N Rc8 Na3 Ng4 Nd6 Be3 Nc6 Bd7 Bc2 Bd2 Ncd4 Qd8 Ne1 Bb5 Ndf3 Rc7 Ne7 Rf8 h8B Ka6 Bg7 Rf7 Qb2 Qh8 Ne8+ Rc6 Qc3 Qh7 Qb2 Rb6 Qc6 Qh4 Qcc3 Rd6 Bb1 Rc6 Nac2 Rg6 Na1 Rgf6 Nec2 Qf1 Nce1 Qf2 Bc2 Qf1 Kd5 e4 Bb8 e3 Ke4 e2 Bh8 Rh6 Bd4 Nf6+ Ke5 Nh7 f6 Rh5 Kf5 Qf2 Kg6 Qf4 Nd6 Rh3 Qg2 Q2h4 Ne8 Rg3 Qg1 Rg2 Nf5 Rf2 Qg3
qQ5K/R1p2b2/1qq5/Rn3kN1/n5PR/pNPpQ2n/6QN/2N2Nq1 b - - 0 1 legal: proof: e4 a5 a4 b5 axb5 Nc6 d4 Ba6 d5 Bc8 Bf4 Nb8 Bd6 Ra7 e5 Ra6 Bc5 Rf6 Bd6 Re6 dxe6 Bb7 Qe2 Ba6 Qd1 Bc8 f4 exd6 f5 h5 f6 g6 Bd3 Be7 Bf5 Kf8 fxe7+ Kg7 g3 gxf5 h3 Kg6 Ra3 Rh7 Ra1 Rg7 Qd4 Kh7 Qd1 Rg4 hxg4 Kg6 Kd2 f6 Kd3 h4 Kd4 a4 e8R f4 b4 f3 c3 f2 b6 f1N b7 f5 b5 h3 b6 h2 e7 d5 e6 d6 g5 f4 Qc2+ Kg7 g6 Kf6 g7 f3 Qg2 f2 Nd2 Kf5 Ne2 Na6 b8N Nf6 g8N Ng4 b7 Nfe3 Nc6 f1Q b8Q Qf2 Nc1 Nc5 Nf1 Ba6 Ra3 Bc4 Na5 Qb2 Ra1 Nf2 Nf6 Qb6 Nh7 Nh3 Ng5 Qd7 Nab3 Qdc6 Rh8 Qa8 Rg1 h1Q e8N Qac6 e7 Qa8 Nf6 a3 e8Q Qac6 Ng4 Qa8 Ngh2 Na4+ Nc5 Bb3 Rb1 Nc4 Qe3 Ba2 Rb5 Bb3 Kd3 d4 Ra5 d5 Rh4 Nd6 Ra7 Ba2 N5b3 Nb5 Qc2 Qf3 Qg2 Qac6 Rh1 Qe4+ Ke2 Qee8 Kf3 d3 Rh5 d2 Rh4 Kg6 Kg4 d4 Rh5 d3 Rh4 Kg7 Kf5 Qa8 Rh5 Qec6 Ke5 Kg6 Rh4 Nb2 Rha4 d1Q R4a5 Nd6 Ke6 Nb5+ Ke7 Kf5 Kf8 Qe1 Kg7 Na4 Kh8 Qf2 Ng4 Qg1 Rh2 Nf4 Rh4 Nh3 Ngh2 Qh1 Nbd2 Bf7 Ndb3 Qg1 g4+
1kQQ1K1Q/8/3B1N1p/1pQ4P/Qr3r1p/nB1bB1P1/bp6/2Q1Rbq1 b - - 0 1 illegal: No possible last move
QNQ5/2pBKnn1/2P5/rQ6/1BB2n1k/rP2QrR1/b6b/n1Q1q1nQ b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 e5 dxe5 Nc6 axb5 Bd6 f4 Nb8 f6 Bf8 g4 Bd6 f5 Ba3 Nc3 Bf8 Nce2 h6 Nf4 gxf4 g5 h5 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 Kd2 Kf7 Kc3 a5 Kc4 a4 Kd5 d6 c4 g3 h4 g2 c5 a3 h5 a2 e6+ Ke8 b3 a1N c6 f3 f7+ Ke7 b6 f2 b7 Bd7 h6 Ra2 g6 Kf6 g7 Qe7 h7 Ra3 Nf3 g1N Bh3 f1R Ne5 Nh6 g8B Na6 b8Q Rf3 Bd2 Nc5 Bb4 Kg5 f6 Nd3 Qc1+ Kh4 Qb5 Bc8 Nd7 Nf4+ Kc4 Bg7 f8Q Nf7 Nb8 d5+ Kd4 Qe8 e7 Bf5 Kc5 Bb1 Bd7+ Kg3 Rh2 d4 Rg2+ Kh4 Rg3 d3 Kd4 d2 Kc5 Nh6 Bc4 d1N f7 Ba2 Qg8 Bb2 f8Q Be5 Qe6 Rg8 h8Q Rg5 Qd5 Rh5 Qd4 Nf7 Qde3 Nb2 Qhh6 Ne6+ Kd5 Ng7 Qg8 Nd3 Qgh8 Nf5 Ke6 Bd6 Q6h7 Nf4+ Kf6 Ng7 Qhe4 Qg8 e8Q Qh7 Qeb1 Qe4 Qhg8 Rc5 Qc8 Be5+ Ke7 Rd5 Qa7 Qe1 Qae3 Rc5 Qbb7 Rca5 Qa8 Nh8 Qd5 Nf7 Qb5 Nfe6 Rg6 Bh2 Rg3 Nf4 Qbe4 Rf2 Qg2 Rf3 Qh1
5Q1N/1b2r1N1/3R2PR/N3bknn/6Nb/P1rn2pQ/1R1KQ2N/1r3qr1 b - - 0 1 illegal: No possible last move
1bb2qQ1/q4B2/P2b1B1n/1kP1pr1Q/6rB/3B1B2/K1R2Rn1/1r1Q1R1r b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 g4 Bh6 f5 Bg7 Ne2 Bf8 Nd2 h6 Nf4 gxf4 Ne4 h5 g5 Nc6 Nf2 Nb8 Ng4 hxg4 Kd2 e5 Kc3 d5 Kb2 Kd7 c4 Kc6 a4 b5 h4 g3 h5 b4 g6 f3 h6 d4 f7 d3 g7 d2 h7 f2 f6 g2 a6 g1B a5 b3 a7 Nh6 g8B Qe8 a6 Nd7 Rh2 Nb8 Bd3 f1Q Rf2 Bd6 f8B Nd7 f7 Qe7 Bg7 Nf8 Bf6 Ng6 f8Q Nf4 Bf7 Rg8 h8Q Rg4 Qfg8 Ng2 Bh4 Rb8 a8B+ Rb7 Ka3 b2 Ka2 b1R Qhh7 Qd7 Qhg6 Qe7 Qh5 Qf8 Ba3 Qe1 Bb4 Qe3 Ba5 Bb8 Bad8 Bd6 Bdf6 Bb8 Qc2 d1R Qe2 Re1 Qd1 Rf1 Rb2 Rf5 Rf2 Kc7 c6 Kb6 c7 Ka5 Re2 Qa7 Rf2 R7b4 Bb7 Rc1 Bf3 Rbb1 Rc2 Bc5 Rf2 Be6 c8R Bcd6 Qc2 Rh1 Qd1 Rb5 Rc1 Rb1 Rcc2 Bd7 c5 Kb4 Rc6 Bc8 Rb6+ Ka4 Rf1 Ka5 Rbb2 Ka4 Rcf2+ Ka5 Rbc2 Ka4 Rc4+ Kb5 Rcc2+
1q2QB2/2q1Nb1R/kr2nqPQ/2R2p1n/1b2RRp1/2R2n2/P1K4Q/3R1r2 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 g6 bxa5 Bh6 c4 Bf8 Bh3 Nh6 Nc3 Ng8 Ne4 Qh4+ Ng3 Qd8 Nf5 gxf5 g5 d5 Bg4 hxg4 cxd5 Qf6 Rb1 Qd6 Ra1 Qd8 e4 Kd7 d4 b5 Kd2 c5 h4 Kc7 d6+ Kb7 h5 c4 g6 c3+ Kc2 f4 a6+ Kb6 d5 f5 d7 f3 h6 b4 a7 f2 e6 f1N e7 Kb5 e8R Kb6 d6 Na6 h7 Bg7 e5 Bf6 e6 Ng3 e7 Ne4 Nf3 Nd2 Qe2 Rb8 a8R Nc7 Qh2 Ne6 Ne5 Nf3 Nc6 Ba6 Bg5 Bc4 Ra5 Qc7 Re5 Ka6 d8R Rb6 d7 Qd6 Raf1 b3+ Kc1 b2+ Kc2 Bg7 Rc5 Bf8 Rc8 Nf6 d8R Nh5 Bh6 Qd4 Rd1 Qf6 R8d4 Bd5 Rf4 Bb3+ Kd3 c2 Rc3 c1Q Bg7 Rg8 h8Q Bd5 Qh6 b1Q+ Rc2 Qb4 Rc3 Rh8 Rc5 Qca1 Kc2 Qae5 Rhe1 Rh7 Ree4 Qc7 Red8 Qb5 e8Q Be7 Rc3 Bb4 Bf8 Rd7 Rc5 Bc4 Rh1 Rd1 Ne7 Rf1 Rd1 Bd5 Rc3 Bc4 Kc1 Qbe5 Kc2 Qb8 Rc5 Qec7 Qd2 Neg7 Rh3 Bf7 Qh2 Ne6 Qg7 Ng3 Rh7 Nh5 Qh6
Qn2R2n/2n1p1q1/1Rr2q1Q/2Q1pPr1/1RQ5/P3Nb2/r4b1k/N1N1QK2 b - - 0 1 legal: proof: e4 c5 g4 h5 gxh5 d5 exd5 a5 b4 Ra7 bxa5 Be6 Ba3 Bc8 Bb4 cxb4 Bh3 Ra8 Be6 fxe6 f4 Kd7 h4 Kd6 d4 b5 c4 g5 c5+ Kc7 d6+ Kd7 a6 g4 a3 g3 d5 b3 a7 b4 f5 b2 c6+ Ke8 h6 Kf7 d7 Kf6 d6 Ke5 h5 Kf4 c7 b3 h7 e5 h6 g2 Nd2 Kg3 Nc4 b1R Ne3 b2 Rh4 Ba6 c8Q Qe8 d8N Bc4 d7 Rc1 Ne6 b1N d8R Qf7 Nd4 Be2 Nb3 Qf6 Qc5 Nc3 Rb1 Nd5 Na1 Bf3 Rb6 Nc7 Rhb4 Kh2 Re8 Rc2 Ne2 Ra2 Qc4 Bg7 Nc1 g1Q+ Qf1 Qg2 Qc4 Bf8 Qc5 Qgg7 Kf1 Nd7 Nab3 Rc8 a8Q Nb8 Qdd6 Nca6 Qad5 Rc6 Na1 Nc7 Qdc4 Kh1 Qd8 Qg4 Ng2 Nba6 Qa8 Nb8 Ke1 Qgg5 Qc3 Bg7 Kf1 Kh2 Qe1 Qf8 Qc4 Bf6 Qc5 Qgg7 Ne3 Bg5 Qc4 Bh4 Qc5 Nf6 Qc4 Ng4 Qc5 Bf2 Qc4 Qff6 Qc5 Rg8 h8Q Qgg6 h7 Qgf7 Qg7 Nh6 h8Q Qf8 Qgh7 Rg5 Qg6 Q8g7 Qf8 Nf7 Qg8 Nh8 Qe6 Rg2 Qec4 Rg5 Qh6+
2Nr3N/1k3rpp/3Q2QP/n1b2q2/r1N3RR/2RPR1K1/3rb3/QR4bq b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 e5 cxd5 f5 d3 e4 Kd2 e3+ Kc2 Ke7 Bd2 exd2 Ra4 Kf7 Ra1 Ke8 g4 Ne7 f4 Nec6 e4 Ke7 g5 Na5 e5 Ke8 Bg2 Nd7 Be4 fxe4 f5 Nf6 gxf6 Ba3 Qg4 Nc6 Kd1 Bb4 Ke2 Bf8 Kf1 Ne7 Qd1 Ng8 Kg2 Kd7 h4 a5 b4 c5 f7 Kc7 h5 a4 b6+ Kb8 b5 e3 b7 c4 d6 e2 d7 e1R f6 c3 e6 c2 h6 c1Q e7 a3 e8N a2 Rh4 Re7 Kg3 Qc5 Na3 Qh5 Nh3 Qc5 Nd6 Qdc7 d8R Re2 Rc1 a1B Nf4 Ra4 Nac4 Q5b6 Re8 Qa5 Ng6 Re6 Rc3 Ne7 Qb1 Bb2 Qa1 d1R Rg4 Ka7 b8R Qb7 b6+ Ka6 Rh4 Qh1 b7 Nc6 Rg4 Re2 Re3 Rdd2 Rh4 Be6 Nc8 Bc5 f8Q Bg4 f7 Rf2 Qe8 Be2 f8Q Rf7 Qd6 Qb5 Qe4 Rd8 Nh8 Bba3 Rg4 Ba7 Qeg6 Qf5 Ra8 Bb4 b8R Bc5 Rf3 Bg1 Rb1 Bc5 Rab8 Bab6 Rb7 Na5 Rff4 Bg1 Re7 Bc5 Re6 Kb7 Rh4 Bg1 Rfg4 Bc5 Rbc1 Bg1 Re3 Bc5 Rb1+
b2qQ2K/P3N2p/2r4p/bN1N4/1Nk1NN1q/r1r2QB1/4Q1rP/2qn2R1 b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 Qd6 e4 Bd7 bxa5 Qe5 a4 Bc8 Ra3 Qd6 Rh3 Qd8 Rh6 gxh6 d4 f5 e5 Ra7 d6 Ra8 d5 Be6 Bd3 Bc8 e6 Nd7 exd7+ Kf7 Be4 fxe4 Ke2 b5 Ke3 e5 f4 c5 g4 c4 a6 b4 g5 c3 a5 b3 g6+ Kf6 f5 b2 a7 c2 a6 Bg7 Ne2 Qe8 d8N Be6 d7 Bf7 d6 Bf8 g7 Qe7 Nec3 Bb3 Qe2 Bd5 Nc6 Qd8 Nd2 b1R Nb4 Ne7 Nb5 Rb2 g8N+ Kf7 f6 Ke6 f7 Nf5+ Kf2 Be7 f8Q Ne3 Kg3 Nd1 Kg4 e3 Rg1 e4 Qff3 Ra2 Bb2 c1R Be5 Rc6 Bg3 Rac2 Kf4 R2c3 Kg4 Bf6 Ne7 Bd4 Kf4 Bb6 Kg4 Rg8+ Kf4 Qe8 d8Q Ba5 d7 Rg6 Qb8 Qd8 Qc8 Qb6 Qe8 Qd8 Nd4+ Kd6 Nb5+ Kc5 Ke5 Rg4 Bf4 Rg2 Bg3 Rcc8 Kf6 Rc6+ Nd6 Kd4 Kg7 Kc5 Kh8 Kd4 Qe1 e2 Nb5+ Kc5 Qef1 e3 Ne4+ Kc4 Q1f2 e1Q Qf1+ Rd3 Q1e2 Rac8 a8N R8c7 Bf4 Qh4 a7 Rc8 Bg3 R8c7 Qb2 e2 Qe5 Rc8 Nac7 e1Q Qb2 Qe3 Qbe2 Qef4 Nbc3 Qc1 N7b5 Qc7 d8N Qb6 Ne6 Qd8 Qd2 Re3 Nf4 R8c7 Nce2 Ra3 N2c3 Rf6 Ng8 Ba8 Ne7 Rcc6 Qb2 Rfd6 Qbf2 Rd3 Ncd5 Rdc3 Q2e2+
b1qn1qQ1/1RPp1rnN/2Q2pB1/1P4n1/rN1K1k1N/8/1N3p1Q/b1N1N3 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 e5 fxe5 g5 axb5 c4 g4 c3 dxc3 h6 c4 Bc5 Bf4 Be7 c5 Bf8 Ra3 Qc7 Rg3 gxf4 g5 Qa5 g6 Qd8 Rg5 hxg5 Kd2 Ke7 Kc3 Ke6 e4 a5 h4 f3 h5 a4 g7 g4 b6 g3 c6 f2 c7 g2 h6 a3 b7 a2 h7 a1N Bd3 Nf6 g8Q Ra7 Qh5 Ra4 Ne2 g1Q Kd4 Ng4 c4 Qe8 c5 Qd1 c6 Nh6 Nd2 Ra7 Qh2 Ra6 Nc1 Qd8 Nf3 Ra7 Ne1 Na6 b8N Nc5 Na6 Bb7 c8Q Ke7 e6 Kf6 e7 Bg7 e8N+ Kg5+ e5 Ba8 Nd6 Qc2 Nc4 Nb7 Nb2 Qf8 Bg6 Nd8 b5 Bf6 Nb4 Ra4 Qa6 Qf5 c7 Nb3+ Ke3 Qe8 e6 Nd2 e7 Nf3 Qc6 Qc5+ Ke4 Nf5 Rf1 Qf8 e8N Ng7 Rh1 Bc3 Nf6 Qcd6 Rg1+ Qg3 Kd5 Qg4 Rg3 Kf4 Kc4 Ng5 Re3+ Qg3 Re8 Nde6 Rb8 Nd8 Rb7 Bd4 Nd1 Ba1 Nb2 Nf5 Ne4 Ng7 Kd4 f6 Qa2 Rg8 h8N Ne8 Qae6 Rg7 Qg8 Re7 Nb3 Ng7 Nc1 Nh3 Ng5 Rf7 Nh7 Ng5 Bb1 Kg4 Ng6 Qe5+ Kd3 Qee8 Bc2 Kf5 Kd4+ Kg4 Qhh1 Kg3 Nh4 Kf4 Bg6 Nde6+ Kc3 Qc8 Qhg2 Nd8 Kd4 Ne8 Qh1 Ng7 Qh2+
4Qq2/1K1p1PkB/1prR2B1/1b2B1qr/Rp1R2q1/2R5/rPRQn3/Q4n2 b - - 0 1 legal: proof: f4 f5 g4 c5 gxf5 h6 e4 a6 d4 e6 dxc5 Ne7 Nh3 Ng8 Nc3 Be7 Ng5 hxg5 Nb5 axb5 e5 Bf6 exf6 g4 Bd3 b4 Bc4 Ra7 Bf1 Ra8 Kd2 Kf8 Ke3 g5 Kd4 g3 h4 g4 a4 g2 c4 g1R h5 g3 c6 g2 Kc5 e5 a5 e4 h6 e3 c7 e2 Kb6 e1Q c5 Qf2 a6 Ra7 h7 Qh4 c6 Ra8 f7 Qhg5 a7 Nh6 Qd2 Qh5 Rh4 Ng8 Bd3 Qf6 Ra4 Kg7 f8R Qe7 f6+ Kh6 f7 Qg5 f5 Qf4 f6 Rd1 Bg6 Qg5 Rd4 g1Q Re8 Qhg4 Re6 Re1 Rd6 Qf2 f8R Ne7 f7 Nf5 Re8 Kg7 Re3 Ng3 Rc3 Rh1 Rc2 Re8 h8R Re3 Rh3 Nf1 Rf3 Re6 Rfc3 Rh5 Bh7 Na6 Bg6 Nc5 Bh7 Rb8 a8B Nb3 Ka7 b6 Bg6 Ba6 c8Q Qd8 c7 Qff4 Bae4 Bb5 Qa6 Ra8+ Kb7 Qf8 c8Q Qfg5 Bh7 Rg6 Qe8 Rf6 Beg6 Re6 Re4 Nd4 Qa7 Ne2 Red4 Qh3 Qe1 Qhg4 Bf4 Rf6 Qd2 Re6 R6d5 Rc6 Rd6 Qg1 Qa5 Q1g4 Be5+ Qf6 Raa3 Ra6 Rab3 Ra8 Qa1 Ra2 Ra3 Rh2 Bf4 Rh5 Ra4 Qfg5 Be5+
Q7/qp1NrNp1/6k1/1n1K2P1/2Q1R2Q/bNpbQ1Rb/1qPb1R2/2Q3r1 b - - 1 2 legal: proof: d4 d5 e4 Kd7 g4 a5 b4 e5 dxe5 d4 bxa5 d3 f4 h6 e6+ Kd6 e5+ Kd5 e7 Kc6 g5 h5 Be2 Nd7 Bg4 hxg4 e6 Ne5 fxe5 d2+ Kf1 dxc1Q Kf2 Rh7 Ke1 Rh8 Ke2 f5 e8Q+ Qd7 a4 g3 Kf3 f4 Ke4 g2 h4 f3 a6 f2 a7 f1B h5 Qa3 a5 Qa2 a6 Bb4 e7 Qa5 e6 Kc5 h6 c6 h7 Qd6 Qeh5 Ba3 e8R Nh6 e7 Nf5 Nd2 Qf6 Rh3 Kd6 Qh4 Ke6 Ngf3 Kf7 Rg3 g1B Nb3 c5 Qc1 Nd6+ Kd5 Bch3 Rb1 Rd8 a8Q Be3 a7 Rd7 Qc8 Qb2 a8Q c4+ Qc5 Kg6 Ne5+ Kf5 Qb5 c3 Qc5 Qa4 Qcc4 Bd3 Ra1 Rf8 h8N Qa7 Nhf7 Bd2 Rb1 Rc7 Nd7 Nb5 Ra1 Rh8 Rf8 Rh7 e8Q Kg6 Qe3 Rh8 Re8 Rf8 Re4 Rh8 Nb8 Re7 Nd7 Rf8 Nd8 Rf1 Nf7 Bd6 Ra4 Ba3 Rf4 Rg1 Rf2 Qa2 Qc7 Qa1 Re4 Qb2 Qc4
2R1Q2r/p3B1k1/3P1pq1/r1b5/R1rQp2B/2QQP2R/1n2K2p/Qb1B3n b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 g5 f4 Bd7 fxg5 Bc8 g4 Rh6 g6 Bd7 g5 Bh3 Na3 Bc8 Nc2 Rh8 Ne3 Rh7 Ng4 hxg4 Kf2 Rh3 Ke1 Rh8 h4 Rh5 Nh3 gxh3 Ra2 Rh6 Ra1 Rh8 b4 c5 d4 e5 g7 c4 e3 e4 d6 c3 d5 c2 h5 Nh6 g8R Qa5 d7+ Ke7 d8B+ Ke8 b6 Qc5 g6 Qd4 b5 Nd7 b7 Nf6 b8Q Qc3+ Ke2 Qc7 b6 Qe7 g7 Nd7 b7 Ne5 Qd4 Nhg4 h6 Qg5 h7 Qg6 Ra4 Nc4 Bh4 Nb2 Qd6 Nf2 b8Q f6 Qbb4 Kf7 Qbc3 Be6 Qd7+ Be7 Rc8 Re8 h8Q Rb8 Qb5 Bc5 Qbd3 Rb5 Qh6 Rh8 g8Q+ Ke7 Bg2 Ra5 Bf3 Bf7 Bd2 c1R d6+ Ke6 Qe8+ Kf5 Qh7 Ba2 Qhg8 Bb1 Qa2 Rc2 Qa1 Rc1 Rg1 h2 Rg3 Nh1 Rh3 Rc2 Kf1 Qf7 Bd1 Kg6 Ke1 Kg7 Ke2 Ra6 Qb3 Rc4 Ba5 Qg6 Bd8 Ra5 Be7 Qg3 Qbc2 Qg6 Qcc3
3r2N1/1n2nBN1/1N2N2n/1q3r1q/1nb2N2/1P2Br1P/2N1N1Rk/1K1nB3 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 b5 g4 h5 a4 f5 f4 e6 e5 Be7 gxf5 Bf6 Qg4 hxg4 exf6 Kf7 axb5 a4 b3 a3 Ra2 Ke8 Rb2 axb2 Kd1 Kf7 Kc2 g5 d4 c5 d6 c4 h3 c3 b6 e5 d7 g3 d5 g4 d6 e4 b7 e3 Nf3 e2 Rg1 g2 Be3 g3 Nd4 Qa5 d8B Nc6 b8N Be6 d7 Rh5 Na3 b1N Be7 Nh6 Bb4 e1N+ Kc1 c2 Bc4 Qa6 Ne2 Ne7 Ba5 Nc3 d8N+ Kg8 Nd7 Kh7 Nb7 Rb8 f7 Rd8 Nd6 Nd1 f6 Kg6 Ne8 Kf5 f8N Qb5 f7 Rg5 Ndf6 Nd3+ Kd2 c1N Kc2 Bd5 N8d7 Nc5 f8N N1d3 Nb6 Nb7 Be1 Nb4+ Kb1 Rh5 Nc2 Bg8 Rf1 g1R Ng6 g2 Rf2 Rf1 Bd5 Bf7 Ng8 g1Q Rh2 Qg3 Rg2 Qg4 Be6+ Ke4 f5 Kf3 f6 Rf5 Ngf4 Qh5 Bc4 Bd5 f7 Rf2 f8N Bf7 Be6 Rf1 Bc8 Bc4 Be6 Rf2 Bf7 Rf1 Nc3 Rf2 N8e6 Rf1 Rf2+ Kg3 Rd2+ Rf2 N8g7 Kh2 Re2 Kh1 Rd2 Rf3 Rf2 Kg1 Rg2+ Kh1 Rg5 Kh2 Nce2 Qa5 Rg4 Qb5 Rg2+
B2Nq3/N5N1/P1npqQnN/4Q2q/6r1/bR2rbPb/3QQ1kb/4K2N b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 f5 Qc7 bxa3 Qd6 a4 Qc7 a5 Qd8 a4 h5 Bf4 gxf4 Ra3 h4 Re3 h3 g3 Rh5 Re2 Rh8 Rg2 hxg2 c4 Kf7 h4 b5 c6 e5 h5 d6 c7 e4 h6 e3 c5 f3 c6 e2 h7 b4 a6 b3 a5 b2 a7 Na6 Nc3 b1Q Nd5 Be6 c8N Nc5 a6 Ne7 c7 Qc2 Ne3 Nb3 Nh3 g1B Ng4 Nd4 Qd2 Qc5 Bg2 Ndc6 Nhf2 Rg8 h8Q Ng6 Ne7 Bh6 c8N Bd5 Rh2 Rb8 a8Q Qe8 Na7 Rb3 Qc8 Re3 Qe6+ Kf8 Rh1 Bh2 f7 Bf4 Qh5 Kg7 f8N Be5 Nh6 Bb2 Qe4 Kf6 Ne6 Ba3 Nd8 Rg7 Qc4 Ke5 Qb5 Be4 Qg4 Qd5 f6 Rg8 f7 Rg7 Qa2 Kd4 f8Q Qh5 Qgg5 Bd5 Nef5+ Ke5 Nh3 Ke4 Qff6 Rg8 Ng7 Qe6 Kd2 Qe8 Rb1 e1Q+ Kc2 Qe6 Qe2 Qe8 Rb3 Qe6 Bf1 f2 Qd2 Qee2 Qfe5+ Kf3 Qgf6+ Nf4 Qab2 Qb5 Bc4 f1B Nf2 Bh3 Kd1 Kg2+ Qe2 Ng6 Ke1 Qb8 Qd2 Bf3 Bd5 Qa8 Nb7 Qae8 Nd8 Nce7 Ba8 Nc6 Qf7 Rf8 Qe7 Rf4 Q7f6 Rg4 Nh1+
1rQ5/R2k1P2/4n2P/b1pK1Qb1/b4R1N/4QrRp/5Rrn/1B1Qqn1R b - - 0 1 illegal: No possible last move, all moves rejected
n3nbqQ/R3BPpq/b1pP1n2/1b1N1N2/Q4NrQ/1K1NQ3/r5Q1/5k2 b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 Rh6 gxh5 Rh7 d6 Rh8 d4 f6 e4 Be7 b4 Bf8 d5 Bf5 Ra2 Bg4 Bg2 Bc8 Rd2 f5 Rd4 exd4 e5 Rh7 Bf3 Rh8 Be4 fxe4 Kd2 Kf7 Kc2 a5 f4 a4 h4 e3 e6+ Kf6 b6 Kf5 d7 Ke4 f5 a3 f6 d3+ Kb3 e2 b7 e1Q b5 c6 h6 a2 f7 d2 b6 Kd3 h7 Ra6 e7 Qc7 e8Q Ra8 d8N Qf4 h5 Bb4 h6 Qef2 Nf3 Nf6 Ne6 Q4h2 Ba3 Qfg3 Nc3 Bf8 Be7 Nbd7 b8Q Ba6 b7 Nb6 Nh4 Qg5 d6 a1N+ Kb2 Bb5 Nd5 Nc2 Nf5 Ne3 Qa4 Ke2 Kb3 Neg4 Ra1 Kf2 Ra3 Kf1 Nef4 Ra5 Qbd8 Na8 b8Q Ra6 Nd3 d1B+ Kc3 Bf3 Kb3 Be2 Qbb6 Qgh5 Qe3 Qe5 Qed7 Ne8 Qe6 Qa1 Q6e4 Ngf6 Qh4 Qe5 Qda5 Qe6 Qad2 Qc8 Qc2 Rg8 h8Q Qb8 Qab4 Ra4 h7 Qd8 Qbd2 Rg4 Ra7 Ba6 Qc4 Qc8 Qa4 Qh6 Nf2 Beb5 Nd3 Nec7 Qc5 Bb7 Nd4 Qf5 Qaa2 Nb6 Ra6 Qfh5 Nf5 Bc8 Bd8 Be7 Qce3 Rf8 Qg8 Re8 h8N Nba8 Ng6 Qh8 Qe4 Bf8 Qea4 Q5h7 Ngf4 Re2 Be7 Nce8 Ra7 Bca6 Qe3 Rh2 Q2a3 Ra2 Qb2 Qh5 Qh7 Qg8 Qh8 Qhh7 Qg2+
k6q/8/P2PQ2r/K1RpnN2/1N1b2Qr/b1r5/NQrQb1pn/N3N2B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 Bd7 c4 Bc8 a4 c6 Bb2 Qd7 Bc3 dxc3 d4 Qc7 d5 Kd8 d6 Ke8 Ra2 Qb6 Rd2 Qd8 Rd5 cxd5 h4 Kd7 f4 Kc6 h6 b5 h7 Kb7 h5 g5 c5 e5 f6 g4 c6+ Ka7 f7 e4 a6 e3 h6 e2 c7 c2 Kd2 c1B+ Kc3 e1R Kb4 g3 a5 Bf5 c8Q Be3 Nc3 Qf6 Qg4 Qe5 Na2 Nf6 Bg2 Bd7 f5 Bg7 f8Q Bb6 Nf3 Ra1 Rc1 Rg8 h8N Qe7 h7 Qe8 Rc5 Rc1 Ng6 Rc3 Ne1 Rh8 Bh1 g2 Nh4 Bh6 Qfg7 Bc1 Qh6 Bc6 Qhf4 Nbd7 Qd2 Ne5 Qe6 Kb8 a7+ Kb7 Qgd4 Rc8 a8N Nfg4 f6 Nh2 f7 Rc2 f8N Ba3+ Kb3 b4 Qdg4 Rc7 Nd7 Bb5 Nf5 Be2 Ka4 Rc8 Nc7 b3 Na6 b2 N6b4 b1R a6+ Ka8 Ra5 Be3 Rc5 Bd4 Ka5 Qh5 Rb5 Rb3 Nc5 Rh3 Nb3 Rh4 Na1 R8c3 Rc5 Re8 Qeh6 Re6 h8Q+ Qe8 Qhe3 Reh6 Qf6 Qh8 Qe6 Rc4 Qb3 R4c3 Qb2
Q2Nb1k1/5p2/rn2R2Q/Q2bP1Nr/2bp2Kn/2Br4/qN1Pr3/Q4QN1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 f4 Qf6 fxe5 Ne7 b6 Qg6 b5 Ng8 Ra4 Qf6 Rb4 Qd8 g4 cxb4 h4 g6 g5 Bd6 Bh3 Ke7 Bf5 gxf5 g6 Ke8 Kf2 Be7 Ke1 Bg5 hxg5 Ke7 Rh4 Kf8 Rh1 Ke8 Kf2 Kf8 Kf3 h5 c4 a5 e4 d5 c5 f4 e6 d4 g7+ Ke8 e5 a4 g6 h4 e7 b3 c6 a3 c7 a2 b7 a1R b6 h3 Qf1 b2 Na3 b1B Bb2 h2 Bc3 Nd7 b8N Rh4 b7 Ra6 Nc4 Bd3 Nb2 Bc4 Nc6 R1a3 b8Q Rh5 Qb6 Nh6 g8N Nf5 g7 Nh4+ Kg4 f3 Qa5 f2 Qa1 Bb7 c8Q f1R Qa8 Rf2 Qf1 Qc8 Nd8 Bbd5 Qc6 Re2 Qh6 Qa8 Qa1 Nb6 Qf1 Kd7 e8Q+ Kc8 Qf8 Kd7 Qfb4 Ke8 Qba4+ Bc6 Nf6+ Ke7 g8Q Be8 Ne4 Rb3 Nh3 Ra3 Rg1 h1B Neg5 Bhd5 Rg2 Rb3 Qaa1 Ra3 Ng1 Qa7 Qc6 Rb3 Qgg6 Kf8 Qh6+ Kg8 Qa8 Ra3 Bb4 Rd3 Bc3 Qe7 Rf2 Qa3 Rf6 Qa2 Re6
2QnnK2/1q2Q3/qQ2q3/1P1R2R1/2r2b2/BNk1p1Qp/q1n1R1rP/4Q2R b - - 0 1 legal: proof: d4 b5 a4 d5 axb5 Kd7 c4 Nc6 cxd5 Nh6 e4 Nb8 d6 Ke6 d7 Ng8 d5+ Ke5 d6 Bb7 Qa4 Kf6 Qd1 Ke6 f4 f5 Nc3 Kf7 Bd3 Bd5 exd5 g6 Be4 fxe4 f5 g5 Nce2 Na6 Nf4 gxf4 Qc2 Nb8 Qa4 Bg7 Qd1 Bf8 Ke2 Kf6 g4 Ke5 b4 a5 g5 h5 f6 c5 g6 h4 g7 f3+ Ke3 a4 b6 c4 f7 h3 b7 a3 Ne2 a2 Ng3 c3 Ne2 f2 Qc2 f1Q Nd4 Ra4 Qd1 c2 Bb2 Qc7 d8R Qa6 b5 Nc6 b8Q Rc4 d7 Nf6 g8R Ne8 d6 Qcb7 Ba3 c1Q+ Qd2 e6 Nb3 Qc2 Rae1 a1N Re2 Qa2 Qe1 Be7 f8Q Bg5+ Qf4+ Kd5 Qc7 e5 Qb6 Rh4 Rg7 Rg4 Rg8 Bh6 Rg5 Rg2 Qfg3 Nc2+ Kd2 e3+ Kd3 Rf4 Kc3 Ke4 Kc4 Rg4 Kc5 Kd3 Kd5 Rc4 Ke6 e4 Kf7 N6d4 Rd5 Bf4 Rg5 Nc6 Kf8 Na1 Rc8 Nd8 Rcc5 Nc2 Rcd5+ Rd4 Qd1+ Kc3 Qg1 Nf7 d8Q Rc4 Qa8 Nd8 d7 Rb4 Red2 Rc4 Q3e1 e2 Qc8 e3 Qg3 e1Q Re2 Qd2 Q1f2 Qd3 Qg1 Qe4 Qb1 Nf7 d8Q Qe6 Qe7 Nd8 Qbe1+
8/2NP1b1q/2p1qn2/p2Q1pQ1/1QBqR1r1/2BnBP1B/3K1b1n/B1Q4k b - - 0 1 legal: proof: d4 b5 c4 d5 cxd5 Kd7 e4 a5 a4 Ra7 axb5 Ra8 d6 Ke6 d7 Ra6 d5+ Kd6 Na3 Rc6 Nb1 Ke5 d6 Ke6 Bg5 Rc2 Bc1 Rc5 b4 g5 f3 g4 Ra2 g3 Rc2 Rd5 exd5+ Kf6 Kd2 h6 Nc3 Kg6 Ne4 Rh7 Nf2 gxf2 g4 h5 g5 Rh6 Rc4 Rh8 Rg4 hxg4 h4 Kh5 g6 e5 g7 f5 b6 g3 b5 c6 b7 e4 b6 g2 Nh3 g1Q Ng5 Qf6 d8Q Qf7 d7 Ba3 d6 Qf6 Ne6 Na6 b8Q Qe7 b7 Nc5 Nc7 Nd3 Bh3 Nf6 g8B Bc5 Bc4 Rg8 Bb2 Qg4 Bc3 Qh7 Re1 Ba7 Qc1 f1N+ Kc2 Nh2 Kd2 Bd4 Qe7 Qg1 d8Q Be6 d7 Bb6 Qd6 Bf7 Qd5 Bf2 Qe7 Rg5 Qb4 Rg3 Qd8 Rg4 b8B e3+ Ke2 Rg6 Ba7 Rg4 Kd1 e2+ Kd2 Bg3 Bc5 Qd4 Ba1 Bf2 Bb6 Kg6 h5+ Kg5 h6 Kf4 Qg8 Kg3 Qg5 Qg6 h7 Qh5 h8B Qh7 Rd1 e1Q+ Kc2 Qe7 Kd2 Qe8 Re1 Qe6 Re4 Nf1+ Kc2 Kh2 Bc5 Kh1 Bg7 Qde5 Be3 Qd4 Kd1 Nh2 Bc3 Ne8 Be5 Nf6 Ba1 Qb6 Bec3 Qd4 Kd2+
1r2rN1k/8/B1RpB3/bqQ1pn2/3BKQQ1/2PPB2B/p1b3Qq/q2r4 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 c5 a4 g5 f6 Bg7 Ra3 Bh6 Rb3 Na6 axb5 Bf8 b6 Nb8 b5 Bb7 Rb2 Bc8 Rb4 cxb4 f4 Bb7 g4 Ba6 h4 Nc6 h5 Nd4 f5 Nc6 Nc3 Bb7 Nd5 Bc8 Nf4 gxf4 g5 Ne5 Rh4 Bg7 Rh1 Ng6 hxg6 Bf8 Kf2 a5 Kf3 e5 f7+ Ke7 b7 h5 b8B a4 c3 h4 g7 a3 b6 b3 b7 b2 d3 b1R f6+ Ke6 g6 a2 Nh3 Ne7 g8B Ra1 g7 Qa5 Ke4 f3 Ba7 f2 b8Q Qb5 Qg4+ Nf5 Bd4 Bb4 Qb7 Rb8 Bce3 Rd1 Qa8 Ba5 Nf4+ Kd6 Ng6 Ke6 Bh3 f1Q Rh2 Qh1+ Rg2 Qh2 Rb2 Ba6 Rb4 Bc8 Rc4 d6 Rc6 Bd7 Qb7 Be8 f8Q+ Bf7 Qb6 Re8 Qc5 Rb8 Bh7 Be8 f7 Kf6 g8B Bd7 Qc8 Kg7 Qg2 Be6 Qd7 Bb3 Qe6 Bc2 Nf8+ Qg3 Bg6 Qh2 Qc8 Rh6 Bh5+ Kh8 Bf3 Re6 Bfg4 Re8 Qd7 Ng7 Be6 Nf5 Bc4 Qb6 Ba6 Qb5 Bg4 h3 Qc8 Qg3 Qe6 h2 Bh3 h1Q Qg6 Qb1 Qg4 Qf2 Ne6 Qb6 f8Q Qb5 Qf7 Qd2 Nf8 Qc1 Qfc4 Qh2 Qf4 Qa1 Qe6 Ng7 Qeg4 Nf5 Be6
KN2Q2B/1nbq2p1/kr2r3/1p2R1Qp/1P1Q1Bb1/nQ5P/B1B1p1p1/1B3r2 b - - 0 1 illegal: No proof kernel
nbBK2k1/5r2/q1NPQ1qP/4B1B1/1B1p4/BqBQb2n/p7/NB4r1 b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 h5 g4 b5 gxh5 Ba6 axb5 a4 b6 a3 b3 Bc4 Qg4 Bb5 Qd1 Ba4 bxa4 Rh6 Ke2 Rh7 Ke1 Rh8 d4 d6 Ra2 Qc8 Rb2 Qd8 Rb4 c6 d5 c5 Rd4 cxd4 c4 Nf6 h4 Ng4 c5 Nf6 c6 Ng8 Rh3 Ra6 Rc3 Ra8 Rc5 dxc5 Kd2 Kf7 Kd3 g5 Ke4 e5 f4 c4 h6 a2 a5 g4 a6 c3 f6 c2 Kf5 g3 h7 e4 a7 g2 c7 e3 c8B e2 b7 e1Q h5 Qh4 h6 Qf2 Nd2 Qe8 Ba3 c1B Bd3 Qg3 Bb1 Qc6 Nb3 Qcc3 Nf3 g1Q Ne5+ Ke8 Ke6 Na6 b8B Qce3 f7+ Kd8 f5 Qf1 f6 Bd6 f8B Ke8 Na1 Ne7 Qd3 Rg8 h8B Qg6 Bc7 Rb8 a8Q Rb7 Ba5 Bb8 Bc3 Nc7+ Kd6 Ra7 Nc6 Kf7 Kd7 Bd2 Qb7 Na8 Kd8 Qeh3 Bc1 Be3 Qd7 Rg7 Q7f5 Kg8 Qe6+ Rf7 Ba3 Rb7 Bfg7 Rb2 Bf8 Rg2 Bc1 Rg1 B1d2 Nf5 Ba3 Ng3 d6 Ne4 Bcb4 Nf2 Bdc3 Qhg3 Bg7 Nh3 Bh8 Kh7 Bg7 Rc7 f7 Ra7 f8B Rf7 Bh8 Kg8 Be7 Qgf3 Bhf6 Q3d1 Bh8 Qb3 Bg5 Qe2 Be5 Qf1 Qd1 Qa6 Qd3
4Rkr1/1QrR2nP/3b1PRN/1RN3R1/1K1p2r1/p1Rqb3/2R2n2/4nQ1b b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qd8 f4 h6 g4 Qc7 f6 Qb6 f5 Qd8 Bf4 gxf4 g5 h5 Be2 Bh6 Bf3 Bf8 Bg4 hxg4 Kd2 a5 Kc3 d5 h4 e5 b4 a4 b6 g3 g6 f3 b5 d4+ Kb4 f2 c4 f1R b7 g2 b6 a3 f7+ Ke7 f6+ Ke6 h5 e4 h6 e3 g7 e2 Nf3 e1N Ne5 g1B Ng4 Nf3 Nd2 Ra5 Nb3 Bd6 f8R Re1 Re8+ Ne7 g8R Kf7 Rg6 Bf4 c6 Ra8 c7 Nf5 c5 Rg8 c6 Qe7+ Nc5 Re4 Qf1 Nd7 b8R Bge3 b7 Ra7 h7 Bg3 Ra2 Ne1 Rc2 Bd6 Rh5 Ng7 Rhg5 Ne5 Rc3 Be6 c8R Bd5 c7 Rf4 Rcd8 Bh1 c8R N5d3+ Kc4 Re4 Rd7 Nf2 Kb4 Rf4 Ra8 Re4 b8Q Rc7 Ra5 Rf4 Rb5 Re4 Qb6 Rf4 Rdd8 Qe4 Qb7 Qd3 Re4 Ne8 Rd7+ Kf8 Nh6 Rg4 Re6 Bd2 Re2 Be3 Rec2 Be7 Ra8 Bd6 Raa5 Ng7 Ra6 Bh2 Re6 Bd6 Re8+
3Q4/N3r1Q1/RQP1qr1k/QbP1p1p1/4K3/1Q4qN/p2Q2Rn/b1Qn1r2 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 g4 Nh6 f4 Ng8 Bd3 Nh6 Bg6+ Nf7 f5 Bb7 Bf4 gxf4 g5 Ba6 Bh5 Bc8 g6 Nh6 g7+ Nf7 Bg6 hxg6 Na3 Nh6 Nb1 Ng8 Kf2 Kf7 Kf3 e5 h4 a5 b4 d5 c4 g5 h5 d4 c6 d3 h6 d2 c5 a4 b6 a3 b5 Qe8 b7 Qe6 b6 Ne7 h7 Ra7 Qc1 d1Q+ Ke4 f3 Nc3 f2 Nb5 f1R Rh2 Nd7 b8Q Nd5 b7 Bd6 Qa8 Rf8 b8Q Ne3 h8Q Qe1 Rg2 Bc7 Qh2 Ba5 Qb6 Bc3 Nh3 Ba6 Raa2 Rc7 Na7 Ba1 Qd8 Kg8 f7+ Kh7 g8Q+ Kh6 f6 Bb5 Qa5 Rb7 Qdb6 Qh4+ Qf4 Qg3 Qf2 Nd1 Qfd2 Ra8 Qb8 Rc7 Q8b7 Re8 Qb8 Re7 Q8b7 Rc8 Qb8 Rg8 f8Q+ Rgg7 Qfd8 Rg6 f7 Rgf6 Rb2 a2 f8Q+ Rg7 Qg8 Re7 Rb1 Nf8 Rb3 Ng6 Ra3 Nh4 Qf7 Nf3 Qg7+ Kh5 Qab4 Nh2 Ra6 Qg8 Q4a5 Qe6 Qf7+ Kh6 Qb8c7 Qd6 Qb3 Qe6 Qcb7 Re8 Qf7 Re7 Qg7+
3NBBb1/1KB2Nq1/Qnr2nPq/4N1r1/5r2/NP3Bnr/1bq2k2/4N1B1 b - - 0 1 legal: proof: c4 b5 h4 h5 g4 g5 f4 d5 cxd5 e5 a4 Na6 axb5 Rb8 Ra4 Ra8 Rh2 Nb8 Rg2 Nf6 fxe5 Ng8 Rf4 gxf4 g5 Bd6 Rg3 Bf8 Rg4 hxg4 Kf2 Ke7 e4 c5 d4 f5 e6 Kd6 b6 a5 h5 a4 h6 a3 b3 g3+ Kf3 g2 g6 a2 h7 a1R e7 c4 e8B c3 b7 c2 Qd3 Be6 Be2 R1a4 Na3 Nd7 b8B+ Qc7 Qa6+ Nb6 Bd1 Nf6 e5+ Ke7 Be2 Bg8 e6 Kd6 e7 Bg7 Bd2 c1Q Be1 Ra5 Bb4+ Rc5 Bd1 Qc2 Be2 Be6 Bd1 Rf8 h8N Bg8 Bc6 Rc8 e8N+ Ke7 d6+ Ke6 d5+ Ke5 d7 Kd4 d8B Qe5 Bb5 R8c6 d6 Rd5 Nh3 g1Q d7 Qgh2 Ng1 Qh6 Nf7 Bh8 Ned6 Qe7 Ne5 Qeg7 Bde2 Ra7 Kg2 Ke3 Bdc7 f3+ Kg3 f2 d8N f1R Ngf3 Rdc5 N6f7 f4+ Kg2 Ra8 Ne1 f3+ Kg3 f2 Bf3 Rd5 Bf8 Rh1 Kg2 Rh3 Ba4 Re6 Be8 Rc6 N5d3 Rdc5 Bh2 Rc4 Bbc7 Rf4 Nde5 f1N+ Be2 Kd2 Bf3 Ng3 Kf2 Kc1+ Ke3 Rc8 Be4 Kd1 Kd4 Rc5 Nd7 Rg5 Nde5 Nc4 Kc5 Ke2 Kc6 Kf2 Kb7 Nb6 Bcd6 Rc3 Bf3 Rc6 Bc7 Nh7 Qa5 Qf6 Nd7 Qe5 Qa6 Qe7 Nd6 Bb2 Ne5 Qeg7 N6f7 Nf6 Bg1+
r1q3n1/2N2p1b/rq3B2/NP2N1bR/1N1rRP2/2b1k3/N4r2/RR3nRK b - - 0 1 illegal: No possible last move
n4bn1/4RKQ1/1N1PN2p/4R3/qr2p1Pq/2Rq2N1/2rN1kb1/2R2bRN b - - 0 1 illegal: No possible last move
NB4r1/1kN2bnQ/4P2n/2Qr4/n1r5/p3KQ2/pn1n2QP/B2Q1Q1B b - - 0 1 legal: proof: b4 f5 c4 e5 a4 h5 f4 d5 fxe5 f4 cxd5 f3 a5 Qh4+ g3 Bg4 b5 Bf5 Nh3 Bc8 Rg1 Qf4 gxf4 Bc5 Rg4 Bb6 axb6 hxg4 Ra6 bxa6 Kf2 Kd7 e4 c5 d4 g5 f5 a5 b7 Kc7 d6+ Kb6 f6 a4 d7 a5 d5 c4 f7 g3+ Ke3 g4 f8Q g2 e6 g1R d6 c3 e5 c2 e7 f2 e8Q g3 Nc3 a3 Qdf3 g2 Qef7 a4 Nf4 a2 Bb2 c1N Qh7 a3 Ne6 Ra4 Nc7 Na6 b8B Rc4 d8Q Nh6 d7 Nd3 Qde7 Rg8 d8Q Nac5 Ba1 Na4 N3d5+ Kb7 b6 Ndb2 Qc5 Be6 Na8+ Bf7 e6 Rh1 Qfg7 g1N Bg2 Nh3 Qgg5 Rhc1 Bh1 Rd1 Ndc7+ Rd5 Qgg2 Nf4 Qf1 Nh5 Qg5 Kc8 Qgg2 Ng7 b7+ Kd8 Q1d1 f1N+ Kf2 Nd2 Ke3 Rc2 Qdf1 Rc4 Ba7 Nd3 Qa5 Ke7 b8Q Kd6 Qbb1 Kc6 Bb8 Ndb2 Qc5+ Kb7 Qbd1
1N1r3B/1n1qPk1b/1K1b4/2B2q2/1B1P1BBb/4N1b1/Brq5/Q1rnN1Q1 b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 h4 g5 b4 e5 f4 d4 Ra4 Bb7 c3 Bc5 cxd4 Rh6 d5 Bf8 Ra3 Rh8 Rf3 Ba6 Rh2 Bc8 Rg2 Nd7 fxe5 Nb8 Rf4 gxf4 g5 Nh6 Rg3 Ng8 Rg4 hxg4 Kf2 f5 e4 a5 h5 c5 d6 c4 g6 c3 h6 f3 Ke3 c2 Kd4 f4 Kc5 a4 d4 g3 b6 a3 e6 g2 h7 a2 e5 a1Q g7 f2 e7 f3 b5 Bh3 b7 Nh6 g8B Qb2 b6 Bf5 Na3 Qd7 Be2 f1R Nc4 f2 Bd2 c1B Ne3 Nc6 b8N Ng4 b7 Na5 Nf3 g1B Ne1 Bh2 Bb4 Bg3 Ba2 Qc2+ Kb6 Rg8 h8B Bh7 Bf3 Rg1 Bc5 f1Q Bb4 Nf2 Bg4 Bd2 Qa1 Nd1 Bc5 Qff5 Bb4 Nb3 Bc5 Kf7 e6+ Kg6 Bb4 Na5 Bc5 Rg7 e8Q+ Kf6 Qc8 Bb4 Qe8 Be7 Qg8 Ba3 Bb4 Kg6 Bc5 Beh4 e7 Rf1 Nc6 Rh1 b8B Nb7 Bc7 Rd8 Nb8 Qda4 d7 Rg1 Bb4 Rg2 Bc3 Bad6 Bb4 Kf6 Qc4 Kg6 Qf1 Rgg8 Qg1 Rge8 Nc4 Kf7 Bc5 Rc8 d8B Qad7 Ne3+ Qc4 Ka7 Rb2 Ba5 Rc6 Bdc7 Rd8 Bab4 Qb3 B5b6 Rc1 B6c5 Bh2 Kb6 Bdg3 Nc4 Qba4 Bf4 Qac2 Bh6 Bd6 Bf4 B2g3 Ne3+
3br1Nn/Kb1b3Q/P4q2/B3PrB1/2QQbqk1/1BB3n1/3b1B2/Nb4B1 b - - 0 1 illegal: No proof kernel
1B4Qq/1N3bp1/1Q2Qnqk/1rn1P3/NQK1Q1n1/2P5/4r1B1/r1b1N1qQ b - - 0 1 legal: proof: g4 b5 b4 e5 a4 f5 axb5 c5 e4 h5 gxh5 Be7 d4 Na6 h4 Nb8 Ra6 Rh6 Rd6 Bf8 Rh3 Rh7 Re3 Rh8 dxc5 Nf6 Rd4 exd4 e5 Ng8 Re4 fxe4 Ke2 Kf7 f4 d5 h6 Kg6 c6 a5 f5+ Kh7 f6 e3 Kd3 a4 f7 e2 b6 e1Q h5 a3 b5 a2 b7 a1R b6 Qf6 c7 Qd6 Nc3 R8a5 Ba3 Rc1 Qf3 Qh4 Bh3 Qf4 Qe4+ Qg6 Bd6 Be7 f8Q Qh2 Na4 Nd7 b8N Rb5 b7 Bg5 c3 Ra1 Nc6 Ngf6 b8Q Bc1 Nd8 Qh1 Nb7 Nc5+ Ke2 Bf5 c8Q Be6 Nf3 Bf7 Ne1 Qg1 Qe6 d3+ Kd1 d2 Ke2 d1N Qfd8 d4 Qb6 Na6 Kd3 Nf2+ Kc4 d3 Qf8 d2 Bb8 d1Q Qfc5 Kg8 Qb4 Nc5 h7+ Kf8 h6 Qdh5 Qe3 N2g4 Qf3 Ra2 Qe4 Re2 Q6d5 Rg8 h8Q Ke7 h7 Rd8 Ba7 Ra8 Bb8 Ra7 Qg8 Qh4 Nb2 Ra1 h8Q Qhh6 Na4 Qhh7 Qc8 Qg8 Qh7 Qh8 Qce6+ Kf8 Qh4 Kg8 Qh5 Nh2 Qhf3 Kh7 Qh1 Kh6 Qdd8 Nhg4 Qe8 Qgh7 Qg8 Qg6 Bg2+
n1bbq3/1n3p1P/R3QQr1/1R4Q1/1b1nB3/1Q1b2K1/1k1B1QPQ/r2Rq3 b - - 0 1 illegal: No proof kernel
2b1NR2/1P2bRNp/2p5/1RR1Nbr1/R4P1q/1Q1qR3/Qn4rn/n1K2k2 b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 e4 f6 d4 Qd7 d5 Qe7 Bd3 Qd8 Be3 f5 Bd4 exd4 e5 Qd7 Bc2 Qd8 Be4 fxe4 Kd2 Kd7 b4 a5 g4 d3 f4 a4 e6+ Ke8 d7+ Ke7 g6 Kd6 g5 a3 g7 c6 g6 e3+ Kc1 a2 e7 e2 e8R e1N b6 Qf6 d8R+ Nd7 b7 Qd4 b8R Nc2 b5 Kc5 d6 Kc4 b6 Ra4 Re3 Ne5 d7 Nf6 g8R Nfg4 g7 Ra5 Nf3 Nh2 Nc3 Be7 Rgf8 Rg8 Nb5 Qe4 Rf7 d2+ Kb2 Qf5 Nc7 Qd3 Rdf8 Rc5 Qe2 d1B Kc1 Kc3 d8N Nc4 Rf1 Rg5 Ne5 Nb2 Ne8 Kd4 Qg2 Bdg4 Ne6+ Kc3 Rff3 Bf5 Qf2 Rg2 Rh3 Rg5 Rh5 Rg2 b7 Rg5 Rb1 a1Q Ra8 Qa2 Ra7 Na1 Ra4 Qd5 Qg3 Qf3 Qg2 Qg4 Qd5 Qh4 Qa2 Rh8 g8Q Rg2 Qg4 Rg8 Qd1 R8g5 N6g7 Nc4 Rb5 Nb2 Nc4 Kd4 Ree5 Kc3 Qdb3+ Kd4 Rec5 Ke4 Rh6 Kf3 Re6 Kf2 Re3 Kf1 Ne5
q1b2N1n/2NBB2N/3NK3/r1Pr4/4Q3/B3Pprp/2Nb2bb/k1nN3Q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 fxe5 Qb6 d4 Qc7 dxc5 Qd8 b4 h6 g4 Rh7 h5 Rh8 Rh4 Ke7 Ra3 Ke8 Rg3 gxh4 g5 Nf6 g6 Ng8 Rg5 hxg5 Kd2 Ke7 Kc3 Ke6 Kc4 f5 g7 a5 c6 f4 e3 a4 b6 g4 h6 g3 c7 a3 b7 d6 b5 g2 b6 h3 h7 a2 Ne2 a1B Na3 g1R Nc3 Na6 b8B Nc5 b7 Nh6 g8N Rg3 Nf6 d5+ Kd4 f3 Bb5 Nf7 Qh1 Bd6 Bc6 Rhg8 h8Q Ra5 Qh4 R8g5 Qe4 Nh8 Nh7 Nd3 Bb2 Rf5 Nd1 Nc1 c4 Bb4 Bb5 Bd2 Nc2 Qg8 Kc5 d4 Ba3 d3 Ba7 Bac3 b8N Bb4+ Kd4 Bd6 B7c5 Qe8 Bcb4 Qc6 Nd7 Qa8 Qh4 Rfg5 Ndf8+ Kf5 e6 Bf4 Kc5 Ke4+ Kb6 Rd5 e7 Be1 e8N d2 Qg4 Kd3 Bd7 Be5 Be7 Bf4 Nf2+ Kc3 c5 d1B Qe6 Kb3 Qe4 Be2 Nd1 Ka2 Bc6 Bd2 Bd7 Bca6 c8N Bf1 Ncd6 Bg2 Kc7 Bc8 Kd8 Be5 Nc7 Kb1 Nd4+ Ka1 Ke8 Ng6 Kf7 Nh8+ Ke6 Rg7 Na6 Bh2 Nc7 Rg3 Nc2+
B3Brb1/p3qQQ1/3bpP2/b3QR2/2Q2Pkn/8/RK1n1n1b/1Q2r1BQ b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 g4 c4 Na6 cxd5 Nb8 Nf3 h6 Na3 h5 Nc4 Bg7 Ne3 gxf3 g4 Bh6 g5 Bf8 Ng4 hxg4 b4 Kd7 h4 c5 d4 f2+ Kd2 e6 Kc2 g3 g6 c4 g7 g2 b6 g1B h5 c3 f6 Qc7 d6 Qb7 h6 Na6 h7 Qb8 b5 Qc7 d5 Qc5 b7 Be7 b8Q Qc7 b6 Nc5 b7 Ne4 Bg2 f1N Rh5 Nh6 g8B Nf2 Ra2 Bh2 Be3 Nd2 Qh1 Nf5 Bf7 Nh4 Rf5 Qc5 Kc1 c2 Kb2 Rg8 Be4 Rg1 h8Q Re1 Qg7 Bd8 Bd4 Ba5 Be8+ Kd8 d7 Qe7 Qe5 c1B+ Kc2 Bb2 b8Q Ba3 Qb1 Bd6 Kb2 Ba6 Bg2 Kc7 d8Q+ Kb7 Bf3 Be2 Bg2 Bh5 Be3 Bf7 Qd7+ Bdc7 Qa4 Bg8 Qc4 Bd6 Bd4 Nfe4 Bg1 Nf2 Bg6 Rf8 Be8 Bdc7 d6+ Kb6 d7 Bd6 Qce2 Kc7 Qh5 Kb6 Bd5 Kc5 Ba8+ Kc4 Qc1+ Kd3 d8Q Ndf3 Qdc7 Nd2 Qb5+ Kd4 Qb1 Ke3 Qcc4 Qc7 Qhf7 Qb7 Qhc6 Qe7 Rd5 Kf3 Qbc5 Ng6 Rf5+ Kg3 Qh1 Kg4 Qh8 Nh4 Qe5 Qd8 Qh6 Qe7 Qhg7+
2KQ2R1/1R1n1Qbb/npPb2R1/1B6/B2r4/BPB2n1r/6bp/2bk2BB b - - 0 1 legal: proof: d4 f5 e4 c5 exf5 b6 dxc5 Na6 a4 Nb8 a5 Qc7 a6 Qb7 axb7 Na6 Qg4 Nb8 Qf3 Nh6 Qd1 Ng8 h4 g5 g4 h6 Nf3 Rh7 h5 Rh8 Nh4 Na6 Na3 Nb8 Nc4 gxh4 g5 Kf7 g6+ Ke8 Nd2 Kd8 Nf3 Ke8 Ng5 hxg5 Ke2 a5 Kd3 e5 Kc4 Ke7 Kb5 Kf6 f4 d5 c4 h3 b3 g4 h6 g3 h7 g2 g7 g1N c6 d4 c5 e4 c7 e3 Ba3 Nf3 Rg1 Na6 Kc6 d3 b8R h2 Rb7 d2 Bb5 a4 Rc1 Be6 c8B e2 Bd7 e1B Rc2 Rd8 Rg6+ Ke7 Rc3 Nf6 g8B Bg3 Qf1 d1B Qf2 Bc4 Bd5 Bd3 Rc1 B1e2 Rg1 Bh6 Be8+ Nd7 f6+ Kf8 f5 Bc1 f7 Ke7 Rg8 Kf6 f8Q+ Ke5 f6 Kf4 f7 Bf1 Qe7 Bc2 f8B Bg2 Bg7 Kg4 Bc3+ Bg6 Qd2 Bd6 Qf7 Kg3 Qg5+ Kf2 Qge7 Bd3 Qef8 Ke2 Bd4 Bh1 R1g6 Kd1 Bg1 Bg2 Q8e7 Rb8 Qd8 Be4 Bb2 a3 Ba4 a2 Ba3 a1B Bb5 Nf8 Bd7 Bg7 Be8 Ne6 Kd7 Ra8 Bdc6 Ra7 Ba4 Nf8+ Kc8 Nd7 Bab5 Nab8 Bd5 Ra4 Bdc6 Rd4 Ba4 Bc2 Bd5 Nf8 Beb5 Nfd7 c6 Na6 Re8 Rf8 h8B Bf5 Re4 Re8 Reg4 Ree4 Rg3 Rh4 R3g5 Rh3 Be4 Bgf8 Rg8 Bh7 R5g6 Bfh6 Bf6 Bg7 Bd5 Rd3 Bc3 Rd4 Bab4 Ne1 Bc5 Bf1 Bg2 Nf3 Bh1 Bg2 Ba3
1kn1R3/1N1RpRp1/2Rrb2Q/P1q2NP1/3r1n2/rNr3R1/2R2n2/1Q2Kn2 b - - 0 1 illegal: No proof kernel forced: wxDB
1qnN1n2/1p3p2/2rbNKN1/PN2QP1k/n1b1R1R1/Q3n3/b1N1N3/2Qb4 b - - 0 1 legal: proof: c4 a5 d4 d5 b4 g5 bxa5 e5 Be3 g4 cxd5 Ra6 d6 Ra7 d5 Ra8 Bd4 exd4 h4 Qf6 f4 Qe7 g3 Bf5 Bg2 Be6 Bf3 gxf3 g4 Qd8 g5 Bc8 g6 Ra6 Rh3 Rb6 Rh1 Rb3 Qd2 Re3 Qc1 Re5 Qd1 Rg5 hxg5 Bh3 Qc2 Bg4 Qd1 Bc8 a6 c5 Kd2 h5 Kd3 h4 Ke4 d3 Ke5 h3 a4 d2 e4 h2 f5 f2 g7 f1B a7 c4 a8Q c3 d7+ Ke7 g6 c2 Na3 c1N Nc2 Nf6 g8Q Qb6 g7 Rh7 Qh8 Qd8 a5 Ne2 Ra4 Ne8 Qc1 d1B Qa7 Nd6 Qc5 Bg2 Q5a3 Nc3 Rc4 Bgf3 Ne2 Na4 Rg1 h1N Rg6 Ng3 Rg4 Qc7 Rb4 Rh6 g8N+ Kd8 Rc4 Nf1 Ne7 Ne3 Rd4 Rf6 Ng6 Re6+ Kf4 Rf6 e5 Be4 Kg5 Bd3 e6 Ba6 Nh4 Ke7 Rde4 Rh6 Qe5 Bd3 Ne1 Bb1 Nc2 Ba2 d8N Nd7 Nc6+ Ke8 Na7 Qb8 Nb5 Rf6 Qd2 Be7 Qdc1 Kf8 Ng6+ Kg7 Rg2 Nf8 Rgg4 Bd8 e7 Be6 e8N+ Kh7 Ne1 Nc8 Nec7 Be7 Nc2 Bb4 d6 Bec4 d7 Rc6 d8N Bd6 Kf6 Kh6 Nce6 Kh5 Qac3 Nc5 Qd3 Na4 Qda3
1Q5Q/1B4rp/p6P/3bB1bK/1q2R1r1/1p3PBk/1Rn1RBB1/rB4qb b - - 0 1 illegal: No possible last move, all moves rejected
2b4K/1B1p1B1b/nR2p1QQ/1p2Bp1R/r1k1B1B1/1r2b1R1/1PB1Pp1q/6n1 b - - 0 1 illegal: No proof kernel
5R2/3b1n1B/5b2/Qb1BP3/b2pb3/1r2P3/q1Q1QQrB/1Q1KBrRk b - - 0 1 illegal: No possible last move
n1N3N1/1Rq3N1/K2b2pN/1R5P/R1qr1kR1/3p1r1Q/1RP2r2/1r3Qn1 b - - 0 1 legal: proof: d4 a5 e4 b5 b4 f5 exf5 c5 dxc5 Nc6 a4 Rb8 axb5 Nh6 b6 Ra8 b5 Nb8 Bd2 Ng8 Bc3 Ra7 Bb4 Ra8 g4 axb4 f4 h5 g5 Na6 f6 Nc7 f5 Na6 Bh3 Nb8 Bg4 hxg4 Kf1 Bb7 Ke1 Bd5 g6 Bf7 Qd5 Qc7 gxf7+ Kd8 Qd6 Kc8 Qd1 Qd8 Ke2 e5 Kd3 d5 h4 Kd7 h5 g6 c6+ Kd6 c7 g3 c8N+ Kc5 b7 g2 b6 b3 Qf1 b2 Nh3 g1Q Ng5 d4 Nd2 Kd5 Qh3 b1R Nde4 Rh7 Ra4 Nc6 b8R Qg4 b7 Qc7 Rg1 Bd6 f8R Rd7 f7 Nge7 f6 Rf1 Rh8 Rf2 f8Q Ra5 f7 Rb5 Rba8 Rb1 b8R Rd8 Rh7 Qf4 Na7 Nc8 Rg4 Nb6 Nc8 Rbf1 R8a7 Na8 Rb2 Rb1 Rab7 Rbf1 Nf3 Ke6 Kc4 Kf5 Kb5 d3 Nf6 e4 Rh8 e3 Ka6 e2 Nh2 e1R Ng8 Nd4 Rh7 Rb1 R7b5+ Ke4 Qe8+ Be5 f8N Qc4 Rg5 Rf3 Ng4 R1f2 N4h6 Ne2 Rg4 Ng1 Ne6 Rd4 Rb7 Ke3 Ng7 Qff7 Rg5 Kf4 Qee6 Qe7 Qf1 Qec7 Qeh3 Bd6 Rg4+
2bBB1KB/1qB2nQ1/1b1r2P1/QQ2N1Q1/1N4Pr/n7/3qbBr1/1k2q2q b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 e4 f6 g4 Be6 b4 Bf5 d4 Be6 d5 Bc8 Ra3 Kf7 Rd3 Ke8 Rd4 exd4 e5 f5 Rh3 Be7 Re3 Bf8 Re4 fxe4 Ke2 Kf7 f4 h5 b6 c5 b5 a5 d7 h4 f5 h3 f6 c4 d6 Ke6 b7 Kd5 f7 c3 b6 Kc4 e6 a4 e7 d3+ Ke3 h2 Kf4 e3 Ke5 a3 Ke6 h1Q e8Q a2 g6 c2 Bg2 Kb3 Bb2 d2 Nc3 e2 Qc1 Nc6 b8B Nh6 b7 Na5 Bc6 Qb6 Ba7 d1B b8B a1R Nd5 Ka2 Nf3 Qb7 Qg5 c1Q Bc7 e1Q+ Be5 Be7 f8Q Nc4 Bd4 Qed2 Bf2 Ra6 Qff6 Be2 Nb4+ Kb1 Qff7 Na3 Bb5 Rh7 Bh8 Rb6 Ne5 Kb2 Qg7 Bd8 Bb8 Bc7 Ke7 Qb1 Kf8 Nf7 d8Q Rh4 d7 Rd6 Kg8 Qbg1 Bc6 Rc1 Bb5 Kb1 Ba4 Ba5 Qc7 Qgd1 d8B Qdf1 Qc5 Bb6 Qa5 Qfg1 Bbc7 Qg3 Bd4 Rg1 Bb5 Qge1 Bf2 Rg2 Qc6 Be6 Qc5 Bf5 Be8 Bc8 Qcb5
2R1b2k/2R2Nr1/N7/3R4/qP1r2n1/1Q1QR2Q/rb1n3P/rR1KnQnn b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bb7 b3 Bc8 Bh3 Bh6 Bb2 Bf8 f5 h6 Be5 h5 Bf4 gxf4 g5 Bg7 Bg4 hxg4 Kf1 Bh6 Ke1 Bf8 d4 Kf7 b6 c5 b7 e5 b4 a5 d6 e4 d7 e3 d5 g3 d6 f3 Ne2 g2 Nec3 e2 Nd2 c4 Na4 c3 Rb1 c2 Nc4 c1R Ne3 Na6 b8R Rh4 Ng4 Qe8 d8R Rc7 d7 Bg7 Nc5 a4 Rb7 Nh6 g6+ Kg8 f7+ Kh8 f6 a3 Rb3 a2 Re3 a1R f8Q+ Ng8 f7 f2+ Kd2 f1N+ Kc2 Ng3 Nh6 Bb2 g7+ Kh7 Re1 Nf6 g8R g1N Kd2 Re4 Qb3 Nh1 Rb1 e1N Kd1 Ng4 Qe7 Rc4 Qh4 Ra7 Rg5 Kh8 Qh3 Ra8 Ra7 Bb7 Rge5 Bc6 Rc8 Rf4 d8Q Re7 Nb7 Nc5 Qdd3 Rd4 Rd5 Ne4 Nc5 Nd2 Rac7 R8a2 Na6 Qd8 Ra7 Be8 Rb7 Qd7 Ra7 Re5 Rac7 Rg5 f8Q+ Rg8 Qf7 Rg7 Qff1 Qa4 Nf7+
7Q/r1p4N/1Q1q4/b2nr3/RPNR4/QNq2b1b/Q4PNK/2rnqk1N b - - 0 1 legal: proof: h4 f5 e4 d5 exf5 b5 c4 g5 cxd5 b4 b3 Nd7 h5 Nh6 Bb2 Ng8 a3 Bh6 axb4 Nb8 b5 Bf8 g4 Na6 b6 Bh6 Bb5+ Kf7 Be8+ Kf8 Bg6 Bg7 Be5 Bh6 Bg3 Nb8 Bh4 gxh4 g5 Bg7 Bf7 Bh6 g6 Bg7 Be6 Ke8 Bf7+ Kd7 Qf3 Bf8 g7 Nh6 Qd1 Ng8 Bg6 hxg6 Rh2 Ke8 Rh3 Qd7 Rh1 Qd8 Kf1 Kd7 Kg2 Kd6 d4 e5 h6 a5 b7 h3+ Kg3 g5 h7 g4 f6 h2 f7 a4 Qe1 e4 Ra2 e3 Ne2 a3 Qc3 Nf6 g8Q Ra7 Nd2 Nbd7 b8Q Ne5 Rd1 h1B Kh2 Nc4 Ng3 Bf3 Nh1 e2 b4 e1Q Qd3 Ne3 Nb3 Be7 Rdd2 Nd1 f8N Be6 Ra1 a2 Qb7 Qd7 Qb6+ Qc6 Qf7 Rg8 h8N Rg5 Nh7 Re5 Ng6 Bd7 Nf4 Be6 Rc1 a1Q Ng2 Qc3 Ra1 Bf8 Qda6 Bh6 Ra4 Be3 Qg6 Bd7 Qb1 Be6 Qa2 Bf5 Qf1 g3+ Kg1 Nb2 Qb8 Re7 Nh4 g2 Qa1 Qe2 Qa3 Bc2 Kh2 g1R Qfa1 Bf5 Q1a2 Rc1 Ng2 Bh3 Qb5 Qe1 Qa5 Kd7 d6 Ke6 d5+ Kf5 d7 Ke4 d8Q Re5 d6 Bb6 d7 Nd1 Qh8 Nd5 d8N Qg6 Nb7 Qd6 Re2+ Kd3 Re4 Qe7 Qc5 Ba5 Nd6 Qe6 Nc4 Qg6 Qa1 Qd6 Rd4+ Ke2 Qb6 Kf1 Q1a2
2rb4/1kbP4/1R1Pq1RK/r2RRBBn/3B4/p3Q1BB/r2rb2n/Q3n3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bd7 f5 Be6 Nh3 Bc8 Nc3 h6 Nf4 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 Kd7 d4 e5 h4 c5 b4 Kc7 b6+ Kb7 d6 a5 f7 a4 h5 c4 h6 c3 b5 c2 f6 f3 Ke3 e4 Kf4 a3 d7 f2 d5 e3 g6 g3 Kg5 e2 g7 e1B h7 g2 Rh6 g1N Bh3 f1R Rg6 Be7 f8R Bc5 Re8 Na6 Re5 Qe8 f7 Qe6 f8Q Bd6 Qf2 Nf6 g8B Nb4 Kh6 Ra5 Bg5 c1R Qe3 Rf2 Ra2 Rc4 Rd2 Bc7 Qa1 Nf3 Bf7 Re8 h8B Rc2 Bg8 Nh2 Bh7 Nh5 Bg7 Kb8 b7 Ra2 Rd4 Ka7 b8B+ Kb7 b6 Nc2 Rd1 Rd2 B7f6 Ka6 b7 Bh4 Bh8 Ne1 Bg7 Bb6 Bd6 Rh8 b8R Bc7 Rb6+ Ka7 Rf5 Rg8 Bg3 Ba6 d6 Rc8 Bd4 Be2 Re5 Ka8 Rf6 Ka7 B7f5 Ka8 Rg6 Ka7 B5f4 Bhd8 Bg5 Ka8 Rdb1 Ka7 R1b5 Ka8 Rbd5 Ka7 Ra6+ Kb7 Rb6+
q6r/5KR1/PkbQ1b1q/1BbQ2P1/3rBB1Q/p1BB2Q1/n3b3/nr1R4 b - - 0 1 legal: proof: b4 a5 h4 d5 a4 g5 hxg5 e5 f4 d4 fxe5 b6 b5 d3 Nc3 Bb4 cxd3 Bf8 d4 Ra6 d5 Ra7 Na2 Ra8 Nf3 Ba3 Nd4 Bf8 Nb4 axb4 a5 Bc5 a6 Bd6 Nb3 Bf8 Na5 bxa5 Kf2 Kd7 Ke3 c5 Ke4 Kc7 g4 h5 d4 a4 d6+ Kb6 Kd5 f5 e4 h4 g6 b3 e6 f4 e5 h3 d7 c4 e7 f3 Ke6 c3 e8B c2 d5 b2 d6 b1B g7 h2 Kf7 f2 e6 a3 e7 Nc6 Bf4 c1B Bd3 f1R Rg1 Nf6 g8Q h1Q Bd2 Qh3 Bc3 Bg5 Be4 Bb7 Qd5 Bc2 Rd1 Na5 Qg6 Nb3 Qg7 Qc7 d8Q Bd3 d7 Be2 Qb8 Qc4 Qd6+ Qc6 Rg3 Na1 d8Q+ Ka7 Bd7 Qh6 e8B Rf4 Bdf5 Rb8 Bd3 Rd4 Bfe4 Qc8 Qg6 Bc6 Rg2 Be7 Qg3 Bc5 b6+ Ka8 b7+ Ka7 Q8d6 Kb6 Qh5 Qd8 Qhh4 Qc8 Qf5 Nd5 Qfe6 Nb4 Qed5 Bf6 Bd7 Ra8 b8B Na2 Bc7+ Ka7 Be8 Rb8 Bd7 Rb1 Be8 Bb7 Beb5 Bc6 g5 Qd8 Rf2 Qa8 Rf5 Be7 Rf6 Bd8 Rg6 Bf6 Bb8+ Kb6 Rg7 Bd8 Qf8 Bde7 Bf4 Bf6 Qfd6
RK2Q3/1bn1nP2/rP1bQBqR/b4B1n/5BB1/B2R4/R1p1q1r1/3b1k2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bd7 f5 Be6 Nh3 Bc8 Nc3 h6 Nf4 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 Kf2 Kd7 h4 Kd6 b4 Ke5 d4+ Ke4 h5 c5 b6 e5 b7 a5 b5 f3 Kg3 c4 f7 c3 g6 c2 h6 a4 g7 f2 h7 a3 d6 a2 d7 Bb4 f8R Ne7 g8B Ra6 f6 Bd6 b6 Qe8 d8B Qg6 Bh3 f1B d5 Be2 Be6 Rg8 Ba3 Ke3 h8Q Rg7 Qf1 Bd1 Qf5 Ke2 f7 e4+ Qe5 e3 Kf4 g3 Bhg4+ Kf2 Bef5 g2 Rh6 g1N Ke4 e2 Qe6 e1B Qg8 Bg3 d6 Ne2 d7 Nf4 Ke5 Ba5 Kd6 Kf1 Qh8 Rg8 Kc7 Nh5+ Qhe5 Nbc6 b8B Nb4 Re8 Bb7 Rf8 Nc8 Bh4 Ne7 d8R Bh2 Rd3 Nbd5+ Kd8 Nc7 Bf6 Rg7 Qb5 Bd6 Qe8 Ba8 Rb1 a1Q Rb2 Bc6 Ra2 Qe5 Rfh8 Qe2 Rf8 Ned5 Kc8 Bb7+ Kd7 Be7 Qc8 Qh7 Bh3+ Rg2 Bhg4 Ne8 Bf4 Qg6 Qcc6 Nec7 Ra8 Beb4 Kd8 Bd6 Qce8 Bc6 Kc8 Ne7+ Kb8 Bf3 Ba1 Bb7 Bf6
4Q1Rq/2pn4/1q3BR1/Bb1Qb3/1P1PK2B/B1QpnB1k/3b4/r1rq1Q2 b - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e5 axb5 e4 c4 Bf5 cxd5 Bc8 Nh3 f5 Nf4 Be6 Nd3 Bd7 Nc3 exd3 e4 Be6 e5 Bc8 Ne4 fxe4 Kd2 Kf7 Ke3 g5 f4 a5 h4 a4 e6+ Kf6 h6 Kf5 h7 a3 b6 g4 b7 a2 d6 g3 d7 g2 e7 Ra7 e8Q Bg7 h5 Nc6 b8Q Qg5 d8Q Nce7 h6 Nc6 Rg1 Nb4 Be2 Qg6 Bf3 Be5 Qf1 Bd7 Bd2 Bb5 Qd5 Nf6 b3 Rg8 h8B Nd7 h7 Qb6 Bf6 Rg4 Rd1 a1Q h8B Rg5 Re1 Qd1 Bc3 Rg3 Bh4 Ra1 B8f6 Rh3 Qba8 Rh1 Qac6 Rc1 Re2 Ra1 Ra2 Rc1 Ra6 Nc2+ Kf2 Ra1 Ba5 e3+ Kg3 e2 Qc3 Na3 Kf2 e1B+ Ke3 Rc1 Be4+ Kg4 f5 Ra1 Bf3+ Kh3 Ke4 Nc2 Bg7 Qd2 f6 Kh2 f7 Qe6 f8B Qdh6 Ba3 Bd2 b4 Kh3 Qd1 Ne3 Bgf6 Qh8 Bfg5 Qd6 Qe2 Qc5 Rh6 Qa7 Bf6 Qb6 Re1 g1Q Rb1 Qf2 Rg1 Qf1 Rg8 Qb1 Rhg6 Qc2 Qdf7 Rhc1 Qd5 Qd1 Qf1+
4BK1B/Q1B1R1R1/5P1P/1bnn2Rk/1bR1r2q/3B2p1/p3p1r1/nr1Q1R2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bd7 f5 Be6 Nh3 Bc8 Nc3 h6 Nf4 gxf4 Ne4 h5 g5 Qd7 Nf2 Qd8 Ng4 hxg4 f7+ Kd7 Qf3 c5 Kf2 e5 b4 Ke7 h4 a5 d4 e4 b6 c4 b5 c3 h5 c2 g6 Kf6 h6 Kg5 b7 a4 d6 a3 g7 a2 d5 Ne7 g8B Qd7 b6 Ra5 Rg1 Ra3 Bb2 Na6 b8B c1N b7 Nc6 Bc7 Ncb4 b8Q Qa4 d7 Qd1 d8R Qa4 d6 Qa5 d7 Rb3 Qa7 Qb5 Re8 Kh5 d8R Nd5 Rd6 Be7 f8R Rb4 Bd3 Nb3 Rac1 e3+ Ke2 Rh7 Bh8 Rg7 Bf7+ Rg6 Rg8 Na1 Rg7 Qc4 Rc6 Bd6 f6 Bd7 Re6 Rb1 Be8 Bb4 Qf1 Qd4 R6c4 Nc5 Qe1 Bb5 Qd2 Kh4 Rce1 Kg5 Qd1 Kh4 Re5 g3 Kf3 Rg4 Reg5 Qe4+ Ke2 Qd4 R5g6 Kh5 Kf3 Rh4 Re2 Rh2 Rge1 Rg2 Rf2 Qe5 Rfe2 Qg5 Rg1 Qh4 Ree1 Na4 Ke4+ f3+ Ke5 Nc5 Re2 f2 Kd6 f1R Re1+ Rf3 Rgf1 Nc3 Re2 Rf4 Ke7 Nd5+ Kf8 Rd4 Ref2+ Rg4 Rf3 e2 Re3 Rd4 Ree7 Re4 Rg5+
4QBBk/1pQ4n/rQ3QRP/1b3np1/b1BRB1P1/rn5K/2p5/4rBb1 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 c5 cxd5 h6 b4 a6 b5 Qd6 Na3 Qc6 bxc6 h5 Nb5 axb5 Nh3 b4 Nf2 h4 g4 Ra3 Ne4 Ra8 Ng3 hxg3 a4 g5 d4 f5 e4 Kf7 h4 Kg7 d6 f4 d5 f3 h5 c4 e6 g2 Kf2 g1N Kg3 f2 a5 b3 d7 b2 d8Q b1R e5 c3 a6 c2 e7 Kh7 e8B Nf3 h6 Bd7 d6 Nd4 e6 Nf5+ Kh3 Ne3 e7 Nf5 a7 Nf6 c7 Ng3 c8B Bc6 d7 Ba4 Bf7 Bb5 e8B Ng8 Qf6 Bd6 d8Q Nf5 Ba3 Na6 B7c4 Ba4 Bef7 Bc5 Q1d6 Re1 Q6c7 Bd4 Bd7 Nc5 Bc6 Nb3 Be4 Be3 Qfb6 Nf6 Bf8 Rg8 Rh2 Rg6 Bg8+ Kh8 Rd1 Nh7 Rd6 Bc5 Rg2 Bd4 Rg3 Bc5 Rgd3 Be3 R3d4 Rf6 Bfg2 f1B Rc6 Bd3 Bf1 Bg1 Qde7 Rf7 Rg6 Rf6 Qbb4 Ra6 Qbb6 Rb8 a8Q Rc8 Bcd5 Bdb5 Bdc4 Re8 Qf7 Ra1 Qab8 Ra3 Qbd8 Re7 Qde8 Re6 Bed5 Re2 Be4 Re1 Qff6+
B3Q1K1/1k3p1r/2r2Qb1/2RRp1pQ/qB4Br/2bb1QP1/2Bn1Pn1/B3r3 b - - 0 1 legal: proof: e4 c5 b4 h5 Nc3 a5 bxa5 h4 Nge2 h3 g3 Na6 Nf4 Nb8 Ng2 hxg2 Nd5 d6 Nb4 d5 exd5 cxb4 Ke2 Kd7 Ke3 Kc7 Kf4 g1R Ke5 b5 d4 g5 h4 b3 c4 e6 a4 b4 h5 b2 c5 b1R c6 b3 h6 b2 a6 Nf6 d6+ Kb6 a7 Na6 d5 Qd7 a5+ Kc5 c7 Bg7 h7 Bh6 Bd2 Nb4 a6 Kb6 Bd3 Nc2 Ra5 Na1 Bc2 Rf1 Bb4 Ne4 Rc5 Qe8 d7 Bb7 c8B Rc1 d6 b1B Qh5 Nd2 Kf6 Rfe1 Rg1 Rb8 a8Q Be4 a7 Bg6 Qaf3 Rb7 d8B+ Ka6 Be7 Qa4 d7 e5 d8Q Bf8 Bg4 Rb5 Rd5 Kb7 Bc3 Rb4 Qe8 Rbe4 Ba3 Bb4 Kg7 Ba5 Bcb2 Bc3 Bb4 Rc4 Rh1 Rc6 Rf1 Re4 Re1 Rec4 Re3 Re1 Red3 Rf4 Rc5 Rc4 Rdd5 Rf4 Bd1 Nc2 Ba1 Ne3 Bb3 Bbd3 Bc2 Rf8 h8Q Ng2 Qd8 Re8 Qf6 Ra8 Qe8 Rac8 Qee6 Rh8 Qe8 Rh7+ Kg8 Rd4 Be6 Rh4 Bf5 Ne4 Bg4 Nd2 a8B+
b1q1R2K/5qN1/2n3bQ/b3k2b/QPQ1N3/PR6/Q2b1Np1/N1r1Rq2 b - - 0 1 legal: proof: g4 a5 c4 g5 f4 h5 e4 b5 a3 d5 cxd5 a4 e5 b4 Bd3 b3 f5 f6 Be4 Nc6 exf6 Nb4 axb4 a3 Bf3 a2 Be2 Ra3 bxa3 Rh7 Bb2 Bb7 Be5 Bc8 Bf4 gxf4 g5 Rh8 Bg4 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 e5 h4 c5 d4 c4 h5 g3 g6 b2 h6 g2 g7 c3 f7 c2 h7 c1Q f6 f3 Nh3 f2 Nd2 f1B Qa4 Bb7 Kf5 b1B+ Ne4+ Kc7 Kg6 Bc2 d6+ Kb8 d7 Kc7 d5 Be2 d6+ Kb6 Re1 Qc7 d8Q Bd5 d7 Ba8 Qc8 Bc5 Rb1 a1Q f8R Ne7+ Kf7 Bf3 g8Q Bh5+ Kg7 Nc6 f7 Qa7 Qca6+ Kc7 d8N Bb6 Re8 Ba5 f8N Qc3 Q6b5 Qc4 Qe6 Qf1 Nd7 Rf8 h8Q Rf4 Ng3 e4 Nc5 e3 Qa2 e2 Nf2 Rc4 Rb3 Bcg6 Qh6 Kd6+ Kh8 Qf7 Nde6 Ke5 Nge4 Qc3 Qa6 Qh3 Q6b5 Rc1 Ng7+ Qhe6 Rd1 e1B Qc4 Bd2 Re1 Qe2 Rf3 Qf1 Nb3 Nd4 Na1 Nc6 Rg8 Qh3 Rb3 Qc8 Re8+
2k5/2PQ3Q/1PR3K1/B3B3/1q1RQpQR/n1r1p3/2bn1Rn1/r1bB2n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 c5 dxc5 Be7 a4 Bd6 axb5 Bf8 e4 f6 Ne2 Be7 f5 Bd6 Nf4 Bf8 Nd2 Nh6 Nf3 exf4 e5 Ng8 e6 Ke7 Ne5 fxe5 Ra5 Ke8 Ra4 Nf6 Ra1 Ng8 Kd2 a5 Kd3 g5 Ke4 g4 b4 a4 h4 a3 c4 a2 f6 d5+ Kf5 g3 h6 e4 h7 d4 b6 g2 b5 g1Q f7+ Ke7 h5 e3 c6 d3 h6 d2 c5 Nd7 c7 Ra4 b7 Qg3 b8B Ne5 c6 Nf3 b6 Ne1 Be2 Nf6 Rh4 Qh2 Kg6 Bb7 c8R Ng2 Be5 Qd7 c7 Ra3 Rd8 Ne4 Bcb2 Ba8 Rc1 a1N Bbc3 Nc2 Ba5 Rc3 Bh5 Bg7 Qg4 d1N f8R Qg3 Rf6 Na3 Rc2 Qe1 Rf2 Rf8 h8Q Nd2 h7 Be4+ Kg5 Bd3 Qg8 Bc2 h8Q Re8 Qhh7 Rf8 Re2 Nf2 Rh6 Rf5+ Kg6 Nh3 Rf2 Ng1 Bb4+ Qd6 Ba5 Qb4 Rd4 Qd1 Qa8 Rf8+ Qe4 Ra8 Qd3 Ke8 e7 Ra7 Qgf5 Qg4+ Qg5 Qd7 Bd1 Qd5 Qg3 Kd7 Qe4 Kc8 e8Q+ Qd8 Qf7 Qd7 Qd5 Bf8 Re2 Nac4 Kf6 Qb2 Qg4 Qb1 Rf2 Ba3 Bb4 Bc1 Kg5 Qb3 Rc6 Ra1 Ba5 Qb4 Kg6 Na3 Qdxd7+
rB1BK3/r1RB2p1/1Qn1PQ2/2pbP2k/6R1/4b1B1/qr1Rr3/2q2Q1Q b - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 f5 a4 d5 c4 a5 cxd5 f4 g4 h6 Nh3 Nc6 Ng5 Nce7 Nc3 Nf5 gxf5 hxg5 Na2 g4 axb5 Bd6 b6 Be7 b5 Bf8 Nb4 axb4 Kf2 Kf7 d4 c5 e4 b3 h4 g3+ Kf3 b2 Kg4 b1R e6+ Kf6 h5 g2 h6 g1R+ Kh5 f3 d6 f2 h7 Rg4 d5 Rb8 b7 Qb6 d7 Rf4 d8B+ Be7 d6 Qc7 b6 Rb3 d7 Rb1 Rh4 Nh6 Bh3 f1Q Ra7 Ra8 b8Q Rb2 b7 Re2 Rg4 Re8 h8Q Qg2 Qf1 Rff2 Bf4 Ra2 Bg3 Qf4 Qd6 Qc1 b8B Rfd2 Qb6 Rdb2 Rc7 Bb7 Qh7 Ng8 Qh8 Qf4 Qh7 Bd5 Qh6+ Ke5 Kg6 Bg5 Kf7 Ne7 Qh1 Nc6 Qg6 Kd6 Qf6 Re7+ Kf8 Rf7+ Ke8 Re2 Qfa1 Rab2 Qaf1 Ke5 f6 Qf3 Bg2 Qb3 Bf3 Qa2 Bg2 Kd4 e5 Bh6 Be4 Qc1 Bd3+ Ke3 Bb5 Qc2 Be7 Qc1 d8R Bf4 Rd6 Bh6 Bd8 Rd7 f7 Bf4 Rc8 Rda7 f8Q Bh6 Rc7 Bf4 Qhh3 Ke4 Qe7 Kf5 Qfh1 Bg5 Q3f1+ Kg6 Ba4 Bf3 Rd2 Bd5 Qhf3 Kh6 Qef6+ Kh5 Bb5 Be3 Ba4 Ne7 Bd7 Nc6 Q3h1+
b2QBk1b/r5n1/5Pr1/1K3Q2/Nbn3bN/1B1BnP2/N3b2B/bqN2Q2 b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 d4 g4 dxc5 g3 f3 Bb7 Qd2 Ba6 Qd1 Bc8 b4 h6 Kd2 h5 Ra6 Nf6 Re6 Ng8 Re2 Rh7 Rf2 gxf2 Ke2 Rh6 Kd2 Rh8 h4 Nf6 g4 Rg8 g5 Rh8 Rh2 Ng8 Rg2 Nc6 Rg3 Nb8 Rg4 hxg4 Kc3 a5 Kc4 e5 g6 e4 c6 d6 h5 g3 f6 g2 c7 a4 h6 e3 b6 a3 b7 d5+ Kb5 e2 c4 e1N c5 d4 h7 d3 c6 d2 g7 a2 Ne2 g1B Nbc3 a1B Na2 Bg4 c8N Nc2 c7 Ne3 Nb6 Nc6 b8Q Nh6 c8B Ne5 g8B Nhf5 Bb3 Bg7 Bd7+ Kf8 Qc8 Ra7 Be8 Rg8 h8N N5c4 Na4 Qd3 Ba3 Qb1 Nec1 Bh2 Bd3 Bd6 Qf1 d1B Bb2 Bc5 Be5 Bc2 Bh2 Bd6 Be2 Be4 Bd3 Ba8 Qe6 Bh6 Qd7 Rg5 Qh7 Ng7+ Qf5 Kg8 Ng6 Bf8 Qd1 f1B Nh4 Be2 Qg1 Rg6 Qf1 Re7 Ka6 Rd7 b5 Bb4 b6 Ra7+ Kb5 Kf8 b7 Nh5 b8Q Bg7 Be4 Bh8 Bd3 Ng7 Qd8
4b3/1rq3Q1/Q2bKn2/1BNr4/1rb1PQ2/P2p1N2/k2QqN1N/1Br3Bn b - - 0 1 legal: proof: d4 a5 f4 c5 dxc5 e5 fxe5 g5 b4 Nf6 bxa5 Ra6 a3 Ra8 Ra2 Ng8 h4 Ra7 g4 Ra6 Rb2 Ra8 Rb4 h6 Rf4 gxf4 g5 h5 Rh2 Ra7 Rg2 Ra8 Rg4 hxg4 Kf2 Ke7 e4 Ke6 c4 b5 c6 f5 g6 d5 h5 b4 c5 f3 Ke3 b3 Kd4 b2 h6 f4 a6 g3 g7 g2 c7 f2 c6 f3 a7 Bd7 c8Q Rh7 c7 Be7 Qd2 Bf6 Bd3 f1B Bc2 f2 Nc3 b1R Nd1 Ne7 g8N Bc4 Nf3 f1Q Nf2 g1R Qa6+ Rb6 c8Q Nf5+ Kc5 d4 Qc7 d3 Bb2 Qe1 Bd4 Be8 Be3 Bg7 Nf6 Qe2 N6g4 Ng3 Ngh2 Nd7+ Kd4 Rb8 a8N Rb7 Qb8 Nh1 Nc7+ Ke7 Ne6 Bf8 Nc5 Rc1 e6 Nf6+ Ke5 Rb4 Bd4 Rg7 h7 Qc7+ Kf5 R7b5 h8Q Rf7 Qg7 Rb7 Qa5 Kd6 e7 Kc6 Qaa7 Kb5 Qaa8 Ba2 Qa5+ Kc4 Ke6 R7b5 Qa6 Bb3 Qg6 Rg7 Qgh6 Rg5 Qg7 Rd5 Qd6 Rb7 Qa6+ Bb5 e8B Bd6 Nd1 Ba4 Bg1 Bb3 Nf2 Ba2 Qd1 Kc3 Qd2+ Kb2 Bd7 Bac4 Bc6 Ba4 Bb5 Ka2 Qbf8 Nh5 Qf5 Nf6 Qff4 Bcb3 Bc4 Be8 Bb5 Bc4 Bb1+
3b1QKQ/nb4P1/Q1N3n1/1rb4n/b4R2/2P4R/1qN1Q1Np/n1krRN2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 dxc5 b4 h5 b3 axb3 Qc7 b4 Qb6 b5 Qd8 g4 Nf6 Bc4 Qb6 Bf7+ Kd8 Bg6 Qc7 Bf4 Ng8 Bg3 Qb6 Bh4 gxh4 g5 Qc7 Be8 Qb6 g6 Qc7 g7 Qb6 Bg6 hxg6 Kd2 Ke8 Ke1 Qd8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 b4 d5 f4 Ke3 c3 a5 f6 e5 h6 a4 c6 d4 f5 d3 c7 a3 b6 a2 h7 e4 b7 h3 b5 h2 b6 d2 Ne2 Ra5 Qf1 d1B Nd2 Ne7 Kh6 g5 f7 g4 f6 g3 Nf4 g2 Rb1 a1N Rb4 Nbc6 b8Q g1N b7 Ne2 Ng2+ Kd3 Qf2 Kc2 Nf1 e3 Rf4 Na7 Qe1 Ng3 Qe2+ Qd2 Rg1 Bd7 c8Q Nh5 Qd6 Bf5 b8N Be4 Qda6 Ng6 Nc6 Bc5 f8Q Rb5 f7 Kc1 Qce8 Rg8 h8R Qb2 Kh7 Bb3 Qfe7 Bbc2 f8N Ba4 Ne6 Bf3 Qa8 Rd8 Qf8 Rd1 Ned4 Bd5 Nc2 Be4 Qc4 e2 Kg8 e1B Qe2 Bh4 Rh1 Bd8 Q8c8 Ng3 Rh3 Bf3 Na5 Bb7 Nc6 Bdb6 Qcd8 Ba5 Qh4 Bd8 Qh8 Nh5 Ng3 Nb3 Re1 Na1 Nf1
R4K1B/nQ2rB2/R1B2r2/2Qn1Q2/3p4/1b1PPr1p/2n1n1Rb/2kB1Q1q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 c5 fxe5 c4 h5 c3 bxc3 Qe7 c4 Qf6 c5 Qd8 g4 h6 Nf3 Rh7 Nh4 Rh8 Nc3 Qc7 Ne4 gxh4 g5 Qa5 g6 Qd8 Ng5 hxg5 Kf2 Ke7 Ke3 Ke6 Ke4 a5 c4 a4 d3 h3 c6 a3 c7 a2 h6 g4 c5 g3 g7 g2 b6 g1N h7 Bd6 c6 Ra6 b7 Ne7 g8B Nd5 Bb2 Qf6 Kd4 Kf5 Rh2 Kf4 Rg2 Qh6 e6 f5 Bf7 Re8 h8R Re7 Kc4 Ke3 Rhg8 f4 Bh8 Be5 Kc5 f3 Qb1 Kd2 e3+ f2 Be2 f1R Bd1+ Ne2 Rd8 Bb2 Kd6 Rf3 Rdg8 Qh4 R8g6 Qe1 Rh6 Re8 e7 Qh1 Re6 Ra7 Rh6 Rf8 e8B Bc3 Bg6 R8f4 Bgf7 Bf6 Rhg6 Bh4 Rg8 Bg3 Rf8 Bh2 Rfg8 Nf6 Ke7 d5 Kf8 Be6 c8Q d4 c7 Bb3 Qf5 Nc6 c8Q Nd5 b8Q Re7 Qbb7 Na7 Bc6 Rf1 Qe5 Rf6 Qcf5 Rf3 Qd6 Rf2 Qc5 Rf3 Bc2 Bb8 Qf1 Bh2 Rc1 a1N Bd1 Nc2 Ra1 Nc8 Ra6 Na7 Kg7 Kc1 Ra8 Ba2 Kg8 Bb3 Kf8
1q2Q2R/1pk3RB/2nrq1RB/1Q1BQ3/Bn2Q1p1/2Kb1bP1/P4n2/2b1n3 b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 g5 h3 g4 h4 Ra6 Nc3 Rg6 Nb1 Rg5 hxg5 Bf5 Ba3 Be6 Bc1 Bc8 e4 f6 d4 Ke7 d6+ Ke8 d5 Kd7 Nd2 Ke8 Ngf3 f5 Nd4 exd4 e5 Qe7 Ne4 fxe4 Rg1 Qf6 Rh1 Qd8 Kd2 Kd7 f4 c5 g3 h5 g6 d3 f5 e3+ Kc3 c4 a6 h4 g7 h3 e6+ Ke8 d7+ Ke7 a7 Kd6 a8Q h2 e7 d2 e8B e2 f6 e1N f7 Rh6 Qaa4 Nc6 Bg2 Nd3 Qdc2 d1B Qb5 Ne1 Rb1 Qe7 d8R+ Kc7 Qe4 Nf6 g8B Bf3 Bh7 Qe6 Be3 Bc5 f8Q Ba3 Qfc5 Bc1 Bd7 Rg6 Rg8 Rh6 Be8 Rg6 Bh6 Bd7 Rf1 h1N Rb4 Nf2 Rh1 Qd6 Ra4 Bf5 Ra6 Qe6 d6+ Kc8 d7+ Kc7 Qe2 Bd3 Qf5 Be3 Qe4 Nd5+ Kb2 Ndb4 Kc3 Bc1 Rh4 Qf5 Qee5+ Rd6 Q2e4 Kb8 d8Q+ Qc8 Qdf6 Kc7 Qfg6 Qd8 Bd7 Qb8 Qge8 Bg5 Kb2 c3+ Kb3 c2 Kc3 Na7 Bc6 Bc1 Bd5 Nac6 Bf1 Ng2 Be2 Ne1 Bd1 Be3 Rh1 c1Q+ Bc2 Qb1 Ba4 Bc1 Bf4 Bc4 Be6 Ne7 Bhf5 Bd3 Bg5 Qa8 Rhh8 Qb8 Qe5d5 Rd7 Bh7 Rd8 Bh6 Rd7 Rd6 Nec6 Bf7 Rd8 Rdg6 Rd6 Be6 Bc4 Qee5 Qf5 Qde4 Bd3 Bd5 Qe6 R8g7+
1b2KQ2/1B5n/1Q2PB2/q1Bk1B2/2q1b1Nn/2pp3n/2QPQ2r/1nNN2b1 b - - 0 1 legal: proof: c4 b5 f4 e5 fxe5 a5 b4 Nc6 a4 Be7 axb5 a4 b6 Nb8 b5 Bd6 b7 Bf8 b6 Ra5 h4 g5 g4 Rb5 cxb5 Qe7 Rh2 Qd8 Rf2 h6 Rf4 gxf4 g5 h5 Ra3 Nh6 Rg3 Ng8 Rg4 hxg4 Kf2 Ke7 e4 Ke6 h5 d5 g6 c5 g7 f5 h6 g3+ Kf3 g2 h7 a3 Qc2 c4 Ne2 g1B Bg2 a2 Ba3 a1N Nbc3 d4 Nd1 c3 Bc5 Ne7 g8N Nd5 Nc1 Nd7 b8Q N7f6 b7 Bd6 Nh6 Qa5 b6 d3 Qa7 Bb8 Ng4 Bd7 Bh3 Bc6 Qa8 Bc7 Qf8 Bb8 Kg2 f3+ Kg3 f4+ Kh4 f2 Kg5 f1Q Kg6 f3 Bg2 Bd6 b8Q f2 b7 Nf4+ Kg7 Nh3 Qbe8+ Be7 Qh5 Bd6 b8Q Ba8 Qa7 Bb8 Qb6+ Bc6 Bh1 Qe2 Bg2 f1N Bf3 Ng3 Bh1 Kd7 Kf7 Nf5 Bg2 Nh4 Bf3 Rg8 h8B Nh7 Bf6 Rh8 Bg2 Qf2 Bf3 Qd4 Bg2 Qa7 Bh1 Qc7 Bf3 Qd8 Bh1 Qc4+ e6+ Kc8 e5 Be4 Qa5 Kb7 Qb6+ Ka8 Bg2 Qc7+ Ke8 Qa7 e7 Qa5 Qcb1 Nc2 e6 Na3 Qc2 Nb1 Qe5 Bf3 Qe2 Be4 Qd6 Kb7 Qd8 Bd5 Be4 Kc6 Bf5 Bf3 Qb6+ Kd5 Kf7 Bbh2 e8B Bb8 Bd7 Be4 Ke8 Rg8 Bc8 Rg5 Nh2 Rg2 Ng4 Rh2 Bb7#
1k4Q1/N3Qp2/q1br3n/2b1QB2/3p3r/BN1P1N2/1N1n1PBp/q3nQ1K b - - 0 1 legal: proof: b4 a5 h4 c5 bxc5 b5 a4 g5 hxg5 Nh6 axb5 Ng8 Ra3 Nc6 Ra4 Nb8 g4 e5 c3 e4 d3 Bg7 Kd2 e3+ Kc2 Bf8 Rb4 axb4 Rh6 Qc7 Ra6 Qd8 Ra2 Nc6 Kb3 Nb8 Rd2 exd2 Kb2 Ba6 Kc2 Bc8 e4 h5 g6 d5 b6 Kd7 b7 Kc7 e5 h4 e6 h3 g5 h2 e7 d4 e8Q Rh7 g7 Qd5 c4 Ne7 g8Q Bd7 g6 Nc8 g7 Ra6 c6 Qb5 c5 Nd6 Nf3 Ra4 Bg2 Bc8 Ba3 Nf5 Qf1 d1N Kd2 b3 Ke2 b2 Qe7+ Bd7 Nbd2 b1Q Nb3 Na6 b8N Nb2 Qh8 Nc4 g8Q Rb4 Qhe5+ Kc8 c7 Bc6 Nd7 Qa1 Nb6+ Kb7 Na4 Rh4 Nb2 Nh6 c8B+ Ka8 Q5f6 Nd2 Bf5 Kb8 Qfh8 Qa4 Qhg7 Rb6 Q7h8 Bb5 Qhe5+ Rd6 c6 Nb4 c7+ Kb7 c8N+ Kb8 Q5e6 Bc6 Na7 Nc2 Qe5 Qa6 Ng1 Ne4 Kf3 Nd2+ Kg3 Ne1 Nf3 Re4 Kh3 Rf4 Kg3 Rh4 Bgh3 Nc2 Kg2 Ne1+ Kh1 Rh5 Q7f6 Rh4 Qa5 Rd7 Bg2 Rd8 Qd5 Bb4 Qe7 Bc5 Bc8 Rd7 Qde5+ Rd6 Bf5+
5R1B/p2nRK2/qq4r1/4B1pQ/1r1R1QPB/n1p1nQ2/k1P2n2/1B2q1Q1 b - - 0 1 illegal: No possible last move
1Rnr2q1/3rPNN1/P1rR2R1/NKN3nb/3B2r1/1N2bn1k/N7/1R2n1n1 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 g5 bxa5 Ke7 c4 Ke8 Bh3 Qf6 Qb3 Qe7 Qe3 Qd8 Qf4 gxf4 g5 d5 Bg4 hxg4 cxd5 Bd7 Nc3 Be6 Nb1 Bc8 d4 Kd7 Kd2 c5 Kc3 b5 a4 f5 e4 f3 h4 c4 h5 f4 g6 f2 e6+ Kd6 Kb4 f1N e7 g3 e8N+ Ke7 a6 c3 a7 f3 a5 g2 h6 f2 h7 c2 e5 Ng3 a6 f1R d6+ Ke6 g7 Kf5 e6 Kg4 d5 Ne7 d7 Rg8 h8N Ne4 d6 Rf6 Nf7 Ng5 Be3 c1N Nf3 g1N Bd4 Nbc6+ Kc5 b4 Nc3 b3 Na2 b2 Rb1 Kg3 Kb5 Ne5 Rh6 Ncd3 Nd2 Nef3 Nb3 Nde1 Rg6 Bb7 Rh6 Rb8 a8R Nc8 e7 Kg4 Rg6 Kh3 Ra7 Bd5+ Rb7 Ra8 Rb8 Be6 Rb6 Bg4 Rb8 Bh5 Rh6 Rh8 g8R Ra7 Rgg6 Rf4 Ng7 Rg4 Rf6 Rc7 Rhg6 Rc6 Re6 Qe8 d8N Rg8 d7 Rh8 Rc1 b1R Nb7 Rb2 d8N Rd2 Rb1 Rd3 Nf5 Bh6 N7c5 Qg8 Ndb7 Rd2 N7a5 Rd1 Ba1 Rd7 Bc3 Ne4 Ba1 Be3 Bd4 Neg5 Ref6 Qh7 Re6 Rhd8 Rd6 Qg8 Ng7
2b5/1nrpk1bP/1b4Rr/NpNB2Nq/RN2pRR1/2n5/P1R5/1r3RK1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 g4 h6 f5 Ra7 Bf4 Ra8 Qd5 Nc6 Qg2 gxf4 g5 Nb8 g6 Bg7 Qg4 Bf8 Qg5 hxg5 Kf2 e5 c4 b5 h4 e4 a6 f3 a7 g4 g7 Rh5 f7+ Ke7 c6 Nh6 g8R Rg5 f6+ Ke6 c5 Qa5 c7 Rg7 c6 Ba6 c8N Qa4 c7 Qb4 h5 Qd6 Nc3 Bb7 Bc4+ Qd5 Nd6 Rg6 c8R Rg5 Nh3 g3+ Kg1 g2 Rg6 Ng4 h6 Na6 h7 Rh5 Rf1 Bg7 f8R Rh6 f7+ Nf6 Ng5+ Ke7 Rh4 Nc5 Rg4 Rb8 Rc6 Bc8 a8R Rb7 Ra4 Rc7 Nb7 Qf5 Bb3 Nd5 Na5 Nb7 Rcc4 Ne3 Rcc6 Nd1 Bd5 Qe5 Rh8 Qf5 f8N Qf7 Nfe6 Qe8 Ne2 Nc3 Nc1 Qf7 Rf8 Qf5 Nh3 Qh5 Nc5 f2+ Kh2 Bh8 N1d3 Bg7 Rff4 g1B+ Kg2 Bf8 Ng5 Bg7 Rb1 f1R Nb4 Bf2 Rc1 Re1 Rcf6 Be3 Rc2 Rb1 Rf1 Bf2 Rff4 Bg1 Nce6 Ba7 Nc5 Bb6 Kg1
2n1qrbk/1Nn1R2r/1b3BB1/3Rp1pn/4P3/1ppR4/1RP4K/RB1q1B1R b - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 f4 d4 fxg5 Ra7 Qf3 Ra8 Qe3 dxe3 g4 Qd4 g6 Qb4 g5 Ra6 g7 Qd6 Na3 Ra8 Nc4 Qd4 Ne5 Qd8 g6 h6 Nef3 Qd3 Ng5 hxg5 Kd1 Qd6 Ke1 Qd8 d4 c5 a4 f5 h4 b5 d5 f4 a6 c4 a7 e6 a5 e2 Kf2 e1Q+ Kg2 f3+ Kh2 b4 d6 f2 d7+ Ke7 h5 Kf6 h6 Qd2 a6 Qa5 d8R Qb6 h7 Qde3 Ne2 Qd6+ Ng3 Qdd3 Nf5 Qdd2 Rd3 Qb6 Nd6 Qd1 Nb7 Ne7 g8B Kg7 Bf7 Qb5 Bf4 c3 Be5+ Kh6 g7 Qe8 Bf6 e5 g8B Be6 Bh5 Nc8 Bg6 Bc5 Ra5 Be3 Rad5 Bb6 B8f7 Rf8 Bg8 Rf7 h8R+ Rh7 B8f7 Nc6 Rg8 Nd4 Rg7 Nb5 Bg8 Rb8 a8R Nc7 Ra7 Bf7 Nd6 Be6 Rb7 Bf7 a7 Be6 a8R Bf7 Bg2 f1N+ Kh3 Ng3 Ra1 Nh5 Kh2 Ba5 Rbb5 Bb6 Bf1 Be6 Nb7 Ra8 B8f7 Rb8 Bf5 Ra8 B7g6 Bg8 Be6 Rb8 Rd8 Ra8 Ba2 Rb8 R8d5 b3 Ra5 Ra8 Bb1 Rb8 R5a2 Ra8 Rb2 Rb8 Rgd7 Ra8 Be7 Kg7 Bd8+ Kh8 Rg7 Ra4 Be7 Rc4 Bf6 Rc6 Bd8 Rf6 Be7 Rf7 Bf6 Rf8 Re7+
N6R/n1K4R/2n4b/1P1Q2bP/4PN1b/BBqpNb2/3B1rn1/qkR5 b - - 0 1 legal: proof: c4 a5 f4 e5 a4 b5 axb5 exf4 d4 c5 dxc5 h5 g4 Ne7 gxh5 Ra7 c6 Rb7 cxb7 Ng8 c5 Nc6 b8N Nxb8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 d5+ Kd4 Kf5 b4 g4 b6 f3 e3 f2 b7 g3 c6 g2 h6 a4 b5 a3 h5 a2 c7 Ne7 Kc5 Ke4 Kb6 f5 h7 f4 Qe1 f3 Ne2 Kd3 e4 Kc2 Nec3 g1B Bh6 d4 Nd5 Nec6 Nf4 Na7 Qb4 Nbc6 b8B Bg4 Qd6 Qf6 Bc4 f1Q c8N f2 Kc7 d3 Nb6 Qc3 Nd2 Bf3 Na8 Bg7 Rh2 Rf8 Bg5 Bh6 h8R Qe1 Qc5 f1N Qd5 Ne3 Nf1+ Ng2 Bb3+ Kb2 Ne3 Bf2 Rc1 a1B Be7 Rf6 Rc2+ Kb1 Ba3 Rf8 Rh4 Rf6 Rg4 Bh4 Rg7 Bb2 Rgh7 Bc1 Kb7 B6g5 Bc7 Qa1 Ba5 Qec3 Kc7 Bd1 Ne2 Rf2 Nf4 Bf3 B5b4 Qcb2 Be1 Qc3 Bd2 Qcb2 Nc4 Ne1 Ng2 Bh6 Bdb4 Bce3 Bd2 Beg5 Nce3 Qc3 Nf4 Ng2 Rc1+
3B2K1/b1NQ1r1B/1r2P2b/b3R2b/1P1r3P/5k2/1rR1p1N1/r1RbB1N1 b - - 0 1 legal: proof: g4 b5 d4 h5 d5 hxg4 b3 b4 Be3 c6 Qd2 Qa5 Qd1 Qa4 Bd2 a5 Bc1 cxd5 a3 d4 axb4 Qb5 Qd3 a4 Qd2 a3 Qd1 Qa4 bxa4 e5 e4 d5 Bf4 d3 Bc1 d4 f3 Nf6 f4 Nd5 exd5 e4 Nc3 Nc6 Nb1 Ne5 fxe5 Rh6 Nc3 Rh7 Nb1 Rh8 Kd2 Kd7 h4 g5 c4 f5 d6 Kc6 c5 Kd5 a5 e3+ Ke1 Ke4 a6 e2 Kf2 f4 c6 a2 c7 f3 Kg3 d2 d7 f2 d8B d3 a7 Rh6 Bh3 f1R Na3 Rb6 Nc4 Bh6 Ne3 Rf7 Ng2 Be6 Qa4 d1B c8R d2 Rc2 Bd7 e6 Be8 Bb2 Rc8 Rac1 a1R a8N Rc4 Bh8 Rd4 Nc7 Ra2 Qd7 Rb2 Ne1 Ke3 Rh2 Ke4 Rf2 Ke3 Rf5 Ke4 Kg2 g3 Re5+ Kf4 Bf5 g4 Be4 Ke3 Bh7+ Kf4 Kh1 g2+ Kh2 g3+ Kh3 Rd5 Ngf3 g1B Ng5 g2 Bg7 Bc5 Bh8 g1B Bg7 Rd4 Bgf6 Re4 Bg7 Ke3 Ng2+ Kf2 Bgf6 Bh2 Bh8 Bf4 Kg4 Rd4 Kh5 Bg3 Nh3+ Kf3 Kg6 Bf2 Bhf6 Bd6 Na6 Bb8 Bg5 Ba7 Be3 Bg3 Bf2 Bgf4 Be1 Bg3 Rg5 Bc7 Ra5 Rc6 Re5 Ba5 Nc7 Rb6 Rcc5 Bb3 R1c2 d1R Rc6 Ra1 Rc1 Bd1 R6c2 Rg7+ Kf6 Bf7 Ke7 Bh5+ Kf8 Re7+ Kg8 Rf7 Ng1+
N3K2b/2B2n1P/1QRR4/nq2R2r/1r1BP1B1/5Nqn/3Prbp1/2N1qk2 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 g4 hxg4 b6 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Ra7 Bg2 Ra5 Bf1 Ra8 Kf2 Ke7 h4 Kd6 e4 Ke5 h5 Kd4 h6 f5 a5 c5 a6 g5 a7 f3 Kg3 f2 b7 f4+ Kg2 a2 d6 f3+ Kg3 c4 d7 c3 Rh2 c2 Ba3 c1Q Qe2 Qe1 Qa6 Nc6 b8R Bc5 Qb5 Na5 Rc8 Rb8 Qa4+ Rb4 Be2 f1Q+ Rf2 Qe7 d8B Qg7 Bd1 Qb5 a8N Kd3 Nc3 Qg6 Rb1 a1B Bc7 Rh7 Nce2 Bh8 Bb2 Qg7 Kh2 g3+ Kh3 g4+ Kh4 g2 Kh5 g3 Qb3+ Qc3 Rf1 f2 Nf3 g1N Kg6 g2 Rc1 Ba7 Re8 Nh3 Re5 Bd4 Rh1 f1R Qe6 Bg1 Qb6 Bf2 Rh2 Qa3 Bd4 Rh1 Rcc5 Rf7 h7 Nh6 Rc2 Rf5 Rc6 Rh5 Rd6 Nf7 Nc1+ Kc4 Ng5 Qg3 Bg4 Rg1 Nf3 Rh1 Na2 Kd3 Rc6 Ke2 Nc1+ Kf1 Rd6 Ng1 Rh4 Nh3 Rc6 Rf5 Rh5 Rh2 Ree6 Rh1 Red6 Rc5 Rhd5 Rc3 Re5 Re3 Kf5 Re2 Ke6 Ng1 Ke7 Rh5 Kf8 Nh3 Ke8
2n4r/1b2b1R1/3B3b/2N2p1P/2PNN1RB/1Pb3n1/1k1rBRbq/1n2K2Q b - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 gxh5 c5 a4 e5 axb5 exf4 e4 cxd4 exd5 Bc5 Qg4 Ba3 Qd1 Bf8 c4 Kd7 h4 Kd6 h6 Ke5 d6 g5 b3 a5 h5 f5 h7 d3 b6 Kd4 b7 d2+ Ke2 f3+ Kf2 a4 d7 a3 Qe2 d1N+ Ke1 a2 Rh4+ g4 Bb2+ Nc3 Nd2 Ne7 Qh2 Nbc6 b8N Qc7 d8B Bb7 Ne4 f2+ Kd2 g3 Bc1 g2 Rg4 Nc8 Bb2 Be7 Bc1 Nb1+ Ke2 Ra3 Qh4 Qh2 Bf4 Ra5 Bg3 Rd5 Na6 Rd7 Kd1 Rd6 Bd3 f1B Nac5 Rd7 Be2 Rd6 Ng5+ Kc3+ Ke1 Nd4 N1f3 g1B Nge4+ Kb2 Rg7 Rd7 Bd6 Be3 Qh3 Bh6 Qg2 Nb5 Nd4 N5c3 Qh1 Bg2 Rg4 Nd5 Rg7 Ne3 Rg4 Nf1 Rg7 Rf8 h8R Ng3 Rg4 Re8 Rh7 Rh8 Rf7 Nc3 Rd1 a1B Rfg7 Nb1 Rd3 Bf8 Bh4 Be7 Rf3 Rdd8 Rf2 Rd7 Bb8 Rd6 Nc2 Rd2 Nd4 Ka2 Nf3 Bc3 Nd4 Kb2 Bd6
3b1k2/2P1rbNp/1K2P1b1/3N4/1R4BP/BNRnR1Q1/1b1n1n1n/b2Bb3 b - - 0 1 legal: proof: e4 c5 g4 e5 d4 b5 b3 a5 b4 axb4 g5 Qf6 g6 Ra6 dxc5 Qf5 exf5 Re6 fxe6 fxg6 Ke2 g5 Ke1 g4 Ke2 d5 Kd3 g5 a4 e4+ Kd4 g3 h4 e3 c4 g4 f4 b3 f5 b4 c6 b2 a5 e2 f6 e1B c7 b3 a6 g2 c5 g3 a7 Nc6+ Ke3 Nh6 a8B Be7 f7+ Kf8 Qf3 Bd7 c8R+ Bd8 Be2 Be8 Ra4 Nb4 Kd4 Ng4 c6 Nh2 Kc5 d4 Nc3 b1B Nh3 g1B Nf4 g2 Ba3 b2 Bd1 Bg6 Nh5 b1N Qg3 Nd2 Nd5 d3+ Kb5 Bc5 Ng7 Bd4 Rc7 Ba1 Kb6 Rg8 Rf1 Rh8 Rf3 g1B+ Re3 Bgf2 Qg2 Bg3 Bb7 Bge5 Qg3 Beb2 Ba6 Ne4 Bc4 d2 Bce2 Rg8 Bg4 Rh8 Ne7 Nd3 Rb4 Rg8 Nd5 Bdf6 Ra7 Bd8+ c7 Rh8 Ra5 Rg8 Rc5 Rh8 Bb3 d1N Rc3 N1f2 Bbd1 Nd2 Nf4 Ke7 f8N Bef7 Nd7 Re8 Nc5 Kf8 Nb3 Re7 Nd5
KQ1n1R2/Bnqk1p1r/P7/qq1B2rR/7R/1N3p2/P3b1P1/nB1N1bN1 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 bxa5 c5 h4 g5 d4 d5 cxd5 gxh4 Bb2 c4 Bc1 Bc5 dxc5 Kf8 Kf2 Ke7 Ke1 Ke8 Kd2 b5 Kc3 h5 Kd4 c3 e4 b4 a6 h3 e5 c2 e6 h2 c6 h4 Kc5 b3 c7 h3 Kb6 b2 e7 Bg4 Kb7 Rh7 c8R Nf6 d6 Kd7 Rc4 Ne8 Rc5 Be2 Rh5 f3 Be3 c1N Nc3 b1B Qb3 Bbd3 Ba7 Nc6 Nd1 Qa5 Rb1 Rc8 Qb4 Nb3 Rb2 Rc7+ Ka8 Nd8 Qb8 Na1 Rb4 Rc5 Rbh4 Rg7 Rh8 Rcg5 Rf8 Rh7 Rh5 Ng7 Rh4 Nge6 Rh5 Nc5 e8B+ Ke6 Bc6 Ncb7 Bd5+ Kd7 Ne3 Bd1 Be2 Bc4 Bd3 Be2 Nd1 Bf1 Ne2 Bb5 Bb1 Bc4 Rg1 h1Q Rh4 Qh2 Rh1 Qg3 Ng1 h2 Bde4 Ke6 d7 Qgc7 Bd5+ Kd6 Rh5 Bce2 Rh4 Nc6 d8N Kd7 Ne6 Ncd8 Nd4 Qb5 Nb3 Qca5 Nh3 Qc7 Rg1 h1Q Rh5 Qhh2 Rh1 Qca5 Ng1 Qhc7 R1h4
1Nrb3B/B4b2/pR1p1n1b/N1Pn2R1/krPN1b2/1nPB2R1/8/4qQK1 b - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 e5 c4 exf4 a4 b5 axb5 Qf6 g4 Qc3+ bxc3 hxg4 Kf2 f5 e4 g5 h4 d6 h5 Kd7 h6 f3 h7 g3+ Ke1 f2+ Ke2 f4 e5 g2 e6+ Kc7 b6+ Kb7 e7 f3+ Ke3 g4 e8N g3 Qd5+ Nc6 Ra3 Nf6 Qg5 Nd4 Rh3 Nb3 Bd3 f1Q Qf5 f2 Nf3 g1B Nc7 g2 Ra6 Be6 Nbd2 Be7 Rg3 Bf7 Nd4 Rhb8 h8R Bh2 Rhg8 g1B R8g5 Bd8 Qh3 Qd1 Qf1 Qe1+ Kf3 Rc8 Kg2 Rab8 Ne4 Qd1 Bf4 Qe2 Nd2 Qe1 Qe2 f1N Be5 Bf2 Kh1 Ne3+ Qf1 Ned5 Kg2 Nd7 Bh8 Be3 Kh1 N7f6 Kg2 Na1 N2b3 Bf4 Kh1 Bg1 Kg2 Bge3 Kh2 Bd2 Kg1 Bc1 Nce6 Bcd2 Nf8 Bc1 Nd7 Bcd2 Ra5 Bc1 Rb5 Ka6 Na5 Nb3 Rh5 Bh6 b7 Bcf4 Rb4 Rc6 Rhg5 Rbc8 b8B Rb6 Nac6 Rb5 Nce5 Rb7 Rb6+ Ka5 Nec6+ Ka4 Na5 a6 Ba7 Rbb8 Rc6 Rb5 Nb8 Rb4 Rb6
1qq3N1/Pp1Bn1KR/N4P1B/1Pn3n1/bqRR1r2/Np1n3k/3BQ3/1b6 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 g5 b4 a5 f4 g4 c4 Bd7 f6 Bf5 b5 Bc8 f5 Bh6 Qb3 Bg5 Qb4 axb4 hxg5 Ra6 Kd1 Rd6 Ke1 Rd5 cxd5 Kf8 Kf2 Kf7 Ke1 Ke8 Kf2 Kd7 Ke3 e5 a4 c5 d4 h5 f7 g3 f8Q h4 f6 h3 a5 g2 a6 c4 g6 c3 a7 c2 d6 Ke6 d7 Kf5 d5 Kg4 d6 h2 g7 Ne7 g8N Na6 Nc3 Nc5 Ra3 Rh4 Nge2 g1N Nd5 Nh3 Qe8 Ng5 Nd4 Kg3 Rb3 Rf4 Nc7 Kh4 Bd3 Kh3 Na6 Qc7 d8R Bf5 d7 Qb8 Bd2 c1Q Rc3 Be6 Bb1 Bb3 Nc2 Ba4 Rc4 b3 Na3 Qc2 Rc8 Qc1 d8B Qc2 Rd1 h1B Rc7 Bf3 Rd7 Bg4 B8a5 Bf5 Bc1 Bg6 Bad2 Qc3+ Ke2 e3 Rdd4 e4 Rh1+ Kg2 Rh7 Bf5 Ke1 e2 Qh5 Qh3 Qf3+ Kh2 Kf2 e1N Ke3 Ned3 Bc2 Qh6 Qf2+ Kh3 Bd1 Qc8 Bh5 Qhf8 Be8+ Rh4 Bd7 Qb8 Ke2 e3 Qe1 Qfc8 Qd1 Nge6 Kf3 e2 Bh6 e1Q Qe2 Qb4 Bcd2 Ndf4 Ke3 Bb1 Kf3 Ncd3 Ke4 Rg4 Rc7 Ndc5+ Ke5 Ng5 Kd6 Ned5 Ke5 Nfd3+ Kf5 Rf4+ Kg6+ Rf5 Kg7 Ne7 Be8 Rf4 Rc6 Nd7 Rcc4 N7c5 Bd7+
2k5/b1R2pKn/B1N3b1/6nr/q1p1QbP1/4P2R/N2r1P1p/RB2N1Bq b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e6 axb5 e5 Qb3 e4 Qg3 e3 h4 gxh4 dxe3 hxg3 e4 Qd7 e5 Qd8 Kd2 Kd7 Kd3 c5 Ke4 h5 Kf5 a5 b4 h4 b6 h3 d6 g2 e6+ Ke8 d7+ Ke7 b5 a4 b7 c4 b6 a3 Nf3 g1B Nc3 a2 Bf4 Ra3 e3 Qe8 d8N Nc6 b8Q Nf6 b7 Nh7 Bd3 Bh2 Bb1 Ne5 Qa8 Qa4 Ne1 Nf3 b8R Nfg5 Rb7+ Bd7 Bb8 Bf4 Nc6+ Ke8 Rh2 Bc5 Rh1 Ba7 Rh2 Nf8 Kf6 Rh5 e7 Bf5 Kg7 Nfh7 Bc7+ Kd7 Bb8+ Kc8 e8B Bd6 Rh1 Bg6 Rh2 Rb3 Rh1 Bdc5 Bh2+ Bb8 Bg1 Ba7 Na5 Rb6 Bb5 Rd6 Nc6 Rd2 Rh2 Qc2 Ba6 Qe4 Rg2 h2 Rg3 Qh1 Rh3 Bc5 Qa7 Bcd6 Qd4 Bf4 Qe4 Ba7 Bd3 Bab8 Rc1 a1Q Bb1 Qa3 Na2 Ba7 Bd3 Qe7 Ra1 Qb4 Bb1 Qa4 Rc7+
1rb2B2/N1K5/Bp1R2rP/rp1qnqk1/P1PNB1r1/2R2RQ1/4pn2/5N2 b - - 0 1 legal: proof: g4 c5 e4 e5 f4 f5 d4 cxd4 b4 h5 gxh5 a6 b5 axb5 exf5 e4 Bc4 Bd6 Bf1 Be5 fxe5 Ke7 Bf4 Kf7 Bc1 Ke8 Ke2 Kf7 a4 g5 h4 g4 f6 g3 h6 Kg6 e6 g2 h7 e3 Kd3 Ne7 Ke4 d3 Ke5 d2 Kd6 Nd5 f7 Re8 h8N+ Kh6 f8R Ra7 e7 Nf6 h5 Ra8 Ra3 Kg5 h6 Ng4 Rf3 Rg8 e8B Nc6 Rc3 Nf2 Ba3 Ra5 Qe1 d1Q+ Nd2 Qf6+ Kc7 Qf5 Bg6 Ne5 Ne2 g1R Bf8 Rg4 Nd4 Rg7 Bc4 e2 Nf1 Qdd3 Bh7 Rg6 Rh4 Qde4 Rhh3 Qd5 Nf7+ Kf6 Nd8 Kg5 N8c6 b6 Na7 Qdf7 Be6 d5+ Bd7 Qg8 Rcd3 Qgf7 c4 Q7e6 Ndc6 d4 Rd1 d3 Nd4 d2 Rhg3 Ba6 Bc8 Qd5 Rc3 Bb7 Rgf3 Ba6 Rb1 d1R Bb7 Nh1 Qg3 Nf2 Rbc1 Rd3 Rd1 Rd2 Ba8 Bc8 Bb7 Qde6 Ba6 Qg8 Nb3 Rd8 Rd6 Qd5 Nd4 Bd7 Bg8 Rb8 Bf7 Bc8 Be8 Qg8 Bc6 Qge6 Be4 Qg8 Rc2 Qd5 Rcc3
3n1kR1/PN2q2r/3N3Q/B1NRp1bn/2K2p2/2pP2br/1B1p2P1/5rBR b - - 0 1 illegal: No proof kernel
2R2K2/qN1p1P2/1NB1qn2/3p1Qp1/2p5/1P1RNRq1/1b1PB1Bk/br3b2 b - - 0 1 legal: proof: b4 b5 h4 a5 h5 g5 Ba3 Ra6 g3 Rg6 hxg6 Nc6 g4 Nd4 c3 Nb3 axb3 f5 c4 fxg4 cxb5 Bh6 Bb2 Bg7 Be5 Bf8 Bd6 exd6 e4 Ke7 Ke2 Ke6 Kd3 Ke5 Kc4 Kf4 Kd5 c5 g7 h5 b6 c4 b5 a4 b7 a3 b8R a2 e5 g3 b6 g2 e6 h4 e7 h3 e8B h2 b7 Rh6 Bh5 Qb6 Nh3+ Kf5 f4 g1B Qf3 Bf2 Na3 Be7 Nc2 Qd8 Ne3+ Kf6 f5 Qf8 Nf4 Qe8 Bg2 Rh8 Rae1 a1Q Rhf1 h1Q Rc1 Qa7 Rc3 Qg6 Rd3 Qg1 Qe4 Bd8 Be2 Rh1 Ra8 Qe8 b8N Bb7+ Nc6 Bb6 Rd8 Bd4 Rc8 Ba1 Qf3 Qh2 Qe4 Bg1 Rf3 Qg3 Qe5+ Kf7 f6 Qe6+ Ke4 Bb2 Nfd5 Kg6 Nd8 Kh5 f7 Ba8 Nb7 Kh4 Nb6 Bf2 Rc3 Rb1 Rd3 Qh6 Kf5 Nf6 g8B Bg1 Nf1 Bgd4 Ne3 Ba1 Bh7 Bdb2 Bh1 Kh3 Bg2+ Kh2 Qb5 Qhh3+ Kg6 Qe6 Kg7 Be5 Kf8 Beb2 Nc5 Be4 Nb7 Bf5 Qd5 Bg4 Be4 Bh3 Bh1 Bg2 Qf5 Bf1 Bc6 d5 Bg2
N1q2QR1/R5p1/1q6/1qp1K1Nk/BpRPbpPN/2P5/r1n5/Bq1Bb3 b - - 0 1 legal: proof: d4 a5 g4 b5 b4 axb4 g5 c5 d5 Ra6 g6 hxg6 Bh3 g5 Bf1 g4 e3 Nc6 Kd2 Nd4 Ke1 Rc6 dxc6 d5 Nd2 Ne2 Nb1 d4 Bb2 d3 Bc1 Nd4 exd4 Qd5 Ne2 Qd7 Ng1 Qd8 Kd2 e5 Ke3 f5 a4 Kf7 h4 Kg6 c7 b3 a5 b2 c3 d2 a6 e4 Kf4 g3 a7 e3 a8N g2 Ra4 e2 Rc4 e1Q Nf3 g1Q Ng5 b4 Qf3 d1Q Nd2 b1Q Be2 Nh6 Bb2 Bb7 c8B Qa4 Ke5 Qb6 Ba1 Qab5 Bd7 Be4 Bd1 Qg4 Qf4 Be7 Ndf3 Kh5 Rf1 Q5a6 B7a4 Qc8 Rg1 Qe3 Re1 Rd8 Re2 Rd7 Ra2 Ra7 Ra3 Ng8 Ra2 Nf6 Ra3 Nd5 Ra2 Kh6 h5 Qe1 Ra3 Ne3 Nh4 Nc2 f3 Bd8 Qh2 f4 Qh3 Qgd7 Qf5 Qg1 Qf8 Qdb5 Bb3 Rc7 Ra7 Qgg4 Ba4 Rc6 Rf7 Rc7 Re7 Ra7 Rd7 Ra6 Ra7 Ra5 Nf7+ Kh7 h6 Bd3 Ng6 Be7 Bb3 Ra2 Ba4 Qbd7 Bb2 Bh4 Ba1 Be1 Nh4 Qg5+ Nf5 Kg6 h7 Qh5 h8R Qdb5 Rg8 Be4 Ng5 Qg4 Nh4+ Kh5 fxg4+
b3bR1b/KQqP4/Rnr5/5Bqr/1P1BBRr1/4Pq1N/3N1rrn/k1N5 b - - 0 1 illegal: No possible last move
b5n1/2rPPBbB/5k2/BNbb1Qb1/1bP1Rq2/1bRr1n2/4rN2/1KNR4 b - - 0 1 illegal: No proof kernel
N4Nqk/B1bn2P1/Rn6/2NnR1n1/2b2P2/QB1rrP2/2r1r3/2Rn1bBK b - - 0 1 legal: proof: h4 c5 d4 cxd4 a4 g5 e3 b5 axb5 gxh4 Be2 f5 Bf1 f4 exf4 Bg7 Nd2 Bh6 Nb1 Bf8 c4 Kf7 b4 Kg7 g4 a5 b6 h5 f3 d5 Kf2 e5 Kg2 d3 g5 e4 g6 d2 c5 e3 b5 e2 c6 e1R b7 d4 c7 a4 b6 h3+ Kh2 d3 Bg2 a3 Qe2 d1R Be3 a2 Nd2 h4 Bc5 Ne7 Qe3 Nd5 Qe4 Nd7 b8B Ba6 c8R Re3 b7 N7b6 Bcd6 Bc4 Bc5 Bd6 Rc1 a1N Qe8 Bc7 Nb3 d2 Bf1 Ra2 Ba7 Rc2 Qa4 Rhe8 b8N Kh8 Nd7 Re2+ Bf2 R8e3 Ra8 Qg8 Nbc5 Nb3 Nf8 Re8 Nd3 R8e3 Qa3 Nc5 Re8 Ncd7 Nc5 Rd3 Re6 Rde1 Re5 Ree3 Ne2 d1N Nc3 R1e2 Kg1 h2+ Kg2 Red2 Rg1 h1N Nb5 Ng3 Ra1 Ne4 Kh1 h3 Be2 Bb8 Nc7 h2 Na8 Ng5 Re1 Bd6 Bg1 Bc7 Bf1 Rde2 Bh3 Nb2 Rec1 Nd1 Be6 Nf2+ Kg2 h1B+ Kh2 Bg2 Ra2 Nd1 Bf7 Bf1+ Kh1 Bb5 Raa1 Ne7 Bb3 Ned5 Qb4 Nb8 Ra6 N8d7 Qa3 Bc4 g7+
1q1n1Bb1/2Pbb1bN/5bRr/BN1QP3/3N1P2/1B1Rr1nb/K4k1R/3r3q b - - 0 1 illegal: No possible last move
3NN1nQ/1n5r/B5P1/1K2nPB1/Bb2rb2/5q2/bqRPR1b1/N1rk1Rn1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 Ke2 Kf7 b4 Kg6 f4 Kf5 b6 Kg4 b5 e5 g3 c5 f5 h5 b7 a5 b6 h4 g6 e3 g7 c3 Qa4+ e4 Ra3 c2 Qd4 a4 Bb2 c1R Qc4 h3 Rd3 h2 Qb4 a3 Qc3 c4 Qf6 c3 Nf3 c2 Ng5 a2 Ne6 a1Q Na3 Qd5 Nc7 Ra4 Rc3 Nd7 b8R Bb4 b7 Ne5 Ne8 Be6 Rg1 h1B Rg2 Rh2 Rf2 Bg2 Qh6 Rh5 Qh8 Rh7 Ra8 Qc6 b8N Ba2 Ra7 Qd5 Re7 Qb1 Ba1 Qb2 Nc6 Nc4 Re5 Rb1 Na7 c1N+ Kd1 e2+ Ke1 Nd6 Rc4 Qb3 Rc3 Ba5 Nc2 Nb7 Nc6 Rd4 Bb2 Bb4 Nd8 Ra1 Rc7 Qa3 Bc3 Qb2 Re6 Rc4 Bf6 Rb1 Na1 Qd3 Rf3 Qdb3 Kf2 Nd3+ Ke3 e1N Rf2 Rbc1 Be7 Rd4 Rc2 Nf3 Ke2 e3 Bf6 Kh3 g4 Kg3 g5 Qd5 Re4 Nde5 g6 Qdb3 Bg5 Rc4 Rd4 Q3a3 Rd3 Re4 Rdc3 Nc6 Kd3 e2 Rb3 Ng1 Rbc3 Nf6 g8B e1B Rf3+ Kg4 Bb3 Ng8 Ba4 Bg3 Rf2 Bf4 Rb3 Ree7 Kc4 Re4+ Kb5 Ne5 Re3 Qab3 Kb6 Q3c3 Ba6 Qd3 Re1 Qe2 Rff1 Qf2+ Kb5 Kf3 Rd1 Ke2 Rde1+ Kd3 Rc7 Qg3 Re2 Qf3 Rff2 Qc3 Nb3 Kc2 Rc8 Kd1 Na1+ Qb3 Rc2 Qb2 Rf1+
Rnbrq3/n3RNP1/1N2b2r/2krRQ1n/1Np2P1K/1B5P/5BBb/1bb5 b - - 0 1 illegal: No proof kernel
N1b1K2n/2RNB1Rb/k1B2q2/Bn2Q3/4Pq1R/1N1p1b2/1n1P1P2/2b1b1rr b - - 0 1 illegal: No proof kernel
r7/5nnP/q3qr1b/3qB3/4p1R1/NP1qN2b/KPRqNkBn/3R2BQ b - - 0 1 illegal: No possible last move
2nKB2N/1b1P3k/7p/B7/qP2q3/bbr1rRqP/1Nq3Q1/1BRN1Rnq b - - 0 1 legal: proof: e4 b5 f4 g5 e5 gxf4 b3 c5 e6 c4 bxc4 b4 a3 dxe6 axb4 e5 Qf3 e4 Qe2 Nc6 Qd1 Nb8 Ke2 f5 d4 Kf7 g4 Kg6 d5 a5 c5 e5 c4 f3+ Ke3 a4 g5 h6 c6 a3 c5 f2 c7 a2 d6 Kh7 d7 Ra3+ Nc3 Bg7 c6 Bb7 c8R Qc7 h3 Ne7 Qd2 Re8 Bd3 f1B Nd1 Rc3 Nf3 Be2 Rb1 a1Q Nh4 Qa4 Rf1 Bg4 Rd8 Nc8 Ng6 Bh8 Qg2 f4+ Kd2 f3 Ke3 Bf6 Nh8 f2 Bb2 Re7 Rf8 Be6 Rc1 Bb3 Rf7+ Bg7 Rf3 Re6 Re1 f1Q g6+ Kg8 Ba1 Qh1 Ref1 Bf6 g7 Kh7 Kf2 Bg5 Kg3 Bd2 Kg4 Re8 Kf5 e3 Kf6+ e4 Rc2 e2 Rc1 e1Q Bb1 Qe2 Bb2 Qg3 c7 Nc6 Ba1 Ne5 Bb2 Rd3 Bd4 e3 Bb6 Qef2 Ba5 e2 Nb2 e1Q Nd1 Nb6 c8N Qe4 Nd6 Nc8 Nc4 Rc3 Ncb2 Qc5 Rf5 Nf3 Rf4 Ng1 R4f3 Re6+ Kf7 Qcc6 Kf8 Qc2 Kf7 Ree3+ Kf8 Red3 Ke8 Qe4+ Kd8 Re3 g8B+ Kg7 Bc4 Kh7 Ba2 Qac6 Bf7 Qa4 Ra1 Bc1 Bb1 Qgf4 Be8 Qg3 Nd3 Ba3 N3b2 B7d5 Ba2 Bc6 Rc1 Bb7 Bb1
N2n2BK/2P1kR1P/pb2r3/2r3Rq/br3B1q/3bN1NP/1Bn4Q/1rR3r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 d5 e4 g5 c4 a6 b4 d3 h3 d2 c5 d4 e5 d3 b6 Bg7 b5 Ke7 b7 Nc6 b8B Nh6 e6 Nb4 c6 Bd7 b6 Nf7 h6 Nc2 h7 Re8 b7 Bd4 Ne2 Bb6 Bb2 Ra7 Qc1 d1R Ra5 d2 Na3 Ra8 Qa1 Rc1 Nc4 d1Q Ne3 Rb1 Bc7 Rb8 Qa2 Rc8 b8R g4+ Kg2 g3 Kf3 g2 Rb7 g1R Bb8 Qd3 Ng3 Qb5 Bc4 Rc7 Bh8 Rb4 Bb2 Rb1 Rc1 Qe5 Ke2 f3+ Kd3 f2 Bb3 Kf6 e7 f1R Rc5 f4 Rd5 Rf8 e8N+ Ke7 Rb5 Qh5 Rg5 Rc8 Nc7 f3 Na8 f2 Bf4 Re8 Bc4 Re1 Ke4 Rg1 Kd5 f1B Ke4 Nd6+ Ke5 Bd3 Bg8 Rc7 Qd5 Rc8 Qg2 Rc7 Ra7 Nb7 Qh1 Be6 Qh2 Bb3 Ba3 Ba4 Bb2 Nc5 Rb7 Ne6 Ra7 Qd7 Rb7 Nd8 Ra7 Qdg4 Rb7 Kf8+ Kf6 Qgh4 Ra7 Rc8 Rg7 Re5 Rf7+ Ke8 Kg7 Re6 Kh8 Rc7 Rf6 Ke7 Rf8 Rd7 c7 Rd5 Rff5 Rc5 Rf7+
3nBNb1/2pbBRr1/bB1RPr1N/P1qQbN2/4R2k/8/n1qrP2b/4K3 b - - 0 1 illegal: No possible last move
1q1N3q/nRb2bqQ/2P3b1/2BPr3/n5nN/K1PrnB1R/1N2pR2/1B1k4 b - - 0 1 illegal: No proof kernel
1R4RB/qn3PpN/PB3n2/2b5/2nNr1b1/2q1rQbB/K1P1rr2/R1k1N3 b - - 0 1 illegal: No possible last move
3B4/4pPk1/P4r1r/nK3P1N/BbQ1bN2/1n1nbqr1/b3R1N1/2R1RBq1 b - - 0 1 illegal: No possible last move
1bq3R1/2Q1N1br/1K1n4/2P2Pr1/3RBB2/2rNkb2/BPrNp1bR/2r4n b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 g4 Ke6 f4 Kd5 f5 a5 g6 h5 b6 e5 g5 h4 g7 d3 Kc3 e3 b7 Ke4 Kc4 d5+ Kb5 d4 c4 e2 g6 e1B c5 h3 Qb3 d2 Qc2+ d3 Qc4+ Ke3 Na3 h2 Qc2 e4 Rb1 a4 Be2 Nd7 b8N Rh3 Nc6 Ne7 g8B Bg7 Be6 Bg3 Bg4 Ne5 Ba2 Bb7 Bb3 Qc8 Bd1 Ng4 Bc4 Bb8 Be6 Nf2 Nf3 Rh5 Rg1 h1R Na5 Rg5 Bf7 Rh7 Kb6 Nh1 Rg2 Bc6 Ba2 Ra7 Nb5 a3 Nb3 Ra4 Rh2 Rc4 N5d4 Rc3 Ne5 Ba8 Ra1 Bb7 Bb1 a2 Ndc6 Ba8 Be2 Bb7 Qd1 Ba8 Bc2 Bb7 Rb1 a1R Bh5 Ra4 Ra1 Rac4 Ra4 Ba8 Bb1 Rc2 Ba2 R4c3 Qg4 Qe6 Rd4 Nc8+ Kb5 Bb7 Ne7 Nd6+ Kb6 Qc8 Qh4 Bd5 Bf3 Bh8 Qh5 Kf4 g7 Bb7 g8R Bg7 Rd5 e3 Qf7 d1B N7c6 d2 Qc7 Be2 Bg2 d1R Ne7 Bh5 Rd2 e2 Bc6 Ba8 Rd5+ Ke4 Bf4 Rdc1 Nd3 Bg4 Bb5 Bh3 Rd4+ Kf3 Ba4 Bg2 Be8 Bd5 Bc6 Be4 Be5 Ke3 Nd2 Bef3 Be4 Rh6 Bg3 Rh7 Bf4+
4RB2/1NKP4/2RN1p2/6qN/B4Pq1/nQr1r1bP/r1qqkn2/r2B1n1R b - - 0 1 illegal: No possible last move
1q2BB2/2Nr1bqk/1n1bqpb1/Qn1r1P2/N1R5/NP1pP1B1/5R2/2KRr3 b - - 0 1 legal: proof: g4 b5 g5 c5 Bh3 b4 Bg2 e5 Bf1 c4 g6 c3 bxc3 b3 d4 exd4 axb3 hxg6 Ra2 g5 Ra1 g4 Kd2 d5 h4 g5 f4 a5 e3 a4 c4 g3 c3 d3 f5 g4 h5 f6 c5 Kf7 h6 g2 c6 d4 h7 Kg7 c7 g3 c4 a3 c5 a2 c6 Be6 c8R Ne7 c7 Na6 Nf3 g1Q Qc2 g2 Ba3 Nd5 Rh5 Ra7 Qb2 Bd6 Qc3 Nb6 Qa5 Bf7 Kc1 Qh1 Rh4 g1Q Ng5 Qd5 Rf4 Qe6 Rf2 Re8 h8B+ Kg8 Ra8 Qb8 c8N Rd7 Bg7 Red8 Bf8 Nc7 Ra7 Nb5 Rc7 Kh8 Rc4 Qg2 Bb4 Qgb7 Na3 d2+ Kb2 d1B Kc1 Bg4 Be1 Bgh5 Be2 Bhg6 Bh5 d3 Rb1 Qe5 Ne6 Kh7 Nc7 Qe6 Ra1 Nd5 Rb1 a1R Nb6 Q7a7 Na4 Nb6 Kb2 Qab7 Rd1 Qg2 Rfd2 Qg5 Bg3 Qh6 Rf2 Qg7 Rdd2 Re1 Rd1 Bf4 Kc1 Rd5 Bf3 Bd6 Bh1 Rd7 Be4 Re5 Bb7 Rd5 Bc6 Re7 Be8 Rd7 Qd2 Rc5 Qc3 Rd5 Qa5
r3n2K/B1R2q1n/2kPN3/RbB3rN/bq3P2/3n1NrQ/1p1PpR2/4bB2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 e5 Ke4 c5 g4 b5 a4 h5 f4 b3 a5 b4 d6 h3 a6 h4 g5 h2 g6 b2 a7 c4 g7 b3 f6 h3 Kf5 e4 Kg6 c3 f7 e3 Ba6 e2 Bc4 c2 Ra4 Kc6 Nc3 b1Q Nd5 Na6 Nf6 Rh5 Qf1 Be7 f8B Nc7 Ba3 Ba6 Ra5 Rg5+ Kh7 c1N+ Kh8 Qe8 Be6 Bb5 Nf3 Nd3 Bc5 Qf7 Nh5 Nf6 g8R Nce8 Bg7 Nh7 Bgd4 b2 Rg1 h1R Rg7 h2 Rg2 Rg1 Rf2 h1B Bh3 R1g3 Qg2 Ba4 Qh2 Qa1 Bf1 Qa3 Qh3 Qb4 Be3 Rg6 Bed4 Bh4 Be3 R6g5 Bed4 Rd8 a8N Bb5 Nc7 Ra8 Ne6 Ba4 Ng1 Bd5 Ba7 Bc4 Nf3 Bcb5 Bdc5 Rg1 Rg2 Be1 Rh2 R1g3 Rf2 Qg6 Rd7 Qf7 Rc7+
Rr1rQ2N/1R2bN2/3p1n1K/np2B1P1/1P1b4/1kbN1rqP/B6B/Rq5q b - - 0 1 illegal: No possible last move
q1N1N1Br/k2nQ2b/1pb1q1r1/1n1rP1b1/4Pp2/BR6/q1PB3K/1R2RN2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 g5 Kg2 d5 h4 Kd7 a4 Kc6 h6 Kb6 e3 f5 h5 g4 h7 g3 a5+ Ka7 a6 f4 h6 b3 Qf3 b6 Nc3 b2 Ra5 b1Q Ra3 d3 Nge2 d2 Rb3 d1R Ne4 d4 Bd2 d3 Nd6 Nf6 e4 Bd7 Qe3 Nd5 Qc5 Nc7 Kg1 g2 Kh2 Qa2 Ng3 Rg8 h8B Bc6 h7 Be7 Bg7 Bg5 h8R Nb5 Bf8 Rg6 Rh3 Qd7 Rb1 Qde6 Be2 Nd7 Re1 Re8 Nf1 Rc8 Be7 Rh8 Bh5 Rg7 Bf7 Rg6 Be3 d2 Bg8 Rc1 Qa3 d1B Bd2 Bh5 Rhb3 Rd1 Qc5 Kb8 a7+ Ka8 Bb4 Rd4 Bd2 Rd5 Ne8 Kb7 a8N Ka7 Nd6 Bg4+ Rh3 Bf5 Nc7 Rg7 Qb4 Bh7 Nce8 Rg6 Bf8 Qf7 Rhb3 g1Q+ Kh3 Qd4 Kh2 Qe6 Qa3+ Qa4 Qc5 Ba8 Qc7+ Bb7 Qd8 Qa5 Qe7 Bc6 Nc4 Qb4 Qd8 Qba5 Ba3 Kb7 Qe7 Qa8 Ncd6+ Ka7 Nc8+
1q6/3rB3/p1n3kN/1n3bNP/P1q2R1q/1r3Pp1/BBRn1rQ1/2K2RbN b - - 0 1 illegal: No possible last move, all moves rejected
5n1R/1r1pR2q/1q3NnB/1Qkbrp1P/4P1bN/RPq1r3/1b2B3/1N1K3B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 e4 Ke7 h4 Kd6 c4 a5 h6 f5 h5 g5 h7 f3 b6 d3 b3 f2+ Kd2 a4 b7 a3 Nh3 g4 Rh2 g3 Nc3 g2 Ne2 g1Q Qc2 a2 Qb2 Nc6 b8R Ra5 Rg2 Kc5 Nc3 Nge7 Nb1 Qb6 Nf4 Bb7 Rg7 Nd8 Qe5+ Bd5 Kd1 Qgg6 Bg2 d2 Bh1 Ne6 Re8 Rg8 h8N Qh7 Nhg6 f1B Rf7 Bg7 Nh4 Ng6 Rfe7 Nef8 Rd8 Bh3 Qb8 Kc6 c5 Bb2 Rc8+ Kb5 c6 Kc5 c7 Ra7 Rce8 Rb7 c8B Rg7 Rd8 Rf7 Qe5 Rf6 Qb8 Re6 Rde8 Re5 Rd8 Ra7 Ba6 Bg4+ Be2 Rb7 Rde8 Ne6 Rh8 Nef8 Kc2 d1R Bd2 Be6 Nd5 Re1 Nf6 Bd5 Bh6 Rd1 Qa8 Rd3 Qa6 Re3 Kd1 Rh3 Nd2 Re3 Qb5+ Kd4 Rc1 a1Q Nb1 Qaa5 Rc8 Qb4 Ra8 Qc3 Qd3+ Kc5 Ra3 Kb4 Qa6 Kc5 Qb5+
2nrbB2/3R1rp1/4n2R/bkn2P1R/N1P1PQNK/1q3B2/1b1rp2N/3r1B2 b - - 0 1 illegal: No possible last move, all moves rejected
1b3b1K/R1P4b/NnPqrnp1/B7/Rp2PR2/1r2N1Nr/2rBQ3/1nkB4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 d5 a4 b5 c4 f5 h4 b3 e4 g6 a5 d4 a6 g3 a7 b2 c6 g2 c5 d3 c7 d2 h5 Nd7 h6 Nb6 h7 Rb8 a8R Qd6 Kg5 f4 R8a4 f3 Be2 f2 Na3 f1R Nc2 b1N Rh4 Rf2 Ne3 Nf6 Rf4 Bd7 Qc2 d1R Bd2 Re8 Ba5 Rd3 Bd1 b4 Ne2 g1B Ng3 Bh2 Qe2 Rb3 R1a2 Bb5 Ra1 Bc4 R1a3 Rg8 h8B Rg2 Bg7 Rh8 Ra1 Rh3 R1a2 Nh5 Kh6 Bd5 Kh7 Rf2 Qb2 Rc2 Kh8 Nf6+ Bh6 Kd7 Ne2 Kc6 Ng3 Kb5 R2a3 Bg8 Qa2 Rc4 Qe2 Bh7 c6 Ng8 Nef5 Nd5 e6 Rd3 Rh4 Nge7 Bd2 Rc2 Bb6 Kc4 Ra6 Nc8 e7 Bg1 Rf4 Nf6 Ra2 Kb3 Ba5 Bb6 Ne3 Rc3 Ra8 Ba7 Ra1 Bb8 Ra7 Kb2 Ra3 Rd8 e8N Rb3 Ra4 Nb6 Ng7 Re8 Ne6 Re7 Nc5 Re6 Bc3+ Kc1 Na6 Qd5 Be1 Qd6 Bd2+
2NK3k/8/NB2bRb1/p2Q1NR1/2PBBb1b/1r1n1qrR/n1Pq1P1p/b7 b - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 e5 b5 axb5 c4 d3 f6 dxc4 fxe5 Qd2 e4 Qd6 Nf6 Qd1 Ng8 Ke2 Kf7 Ke3 Kg7 Kf4 h5 Kf5 e5 b4 a5 g4 e3 g5 e4 b6 d5+ Ke5 h3 b5 h2 g6 h4 b7 e2 b6 e1B Bb2 d4 Qh5 h3 Qd1 d3 Qd2 e3 Ra3 e2 Qd1 d2 Rf3 Be6 Rc3 Nh6 Na3 Na6 b8N Nb4 b7 Rg8 Rf3 Be7 Rf6 Na2 Bd4 Kh8 Na6 Rb8 Nf3 Rg7 Bg2 Ng4+ Ke4 Qf8 Nh4 Ne5 Nb5 Nd3 Nd6 Bd8 Nc8 Qa3 Rf1 h1B Nf5 h2 Rg1 Qb4 Bf3 Rg8 Rg3 Qf8 Rh3+ Qh6 Qc1 d1Q Qg5 Bc3 Qd2 e1B g7+ Kh7 Qg5 Bed2 Bb6 Bf4 Bg2 Rf8 g8R Ba1 Qh5 Qg4 Rg5 Kh8 Qf7 Re8 Qd7 Rg8 Qd5 Qd1 Bf3 Qd2 Bg2 Qh5 Bd4 Ra8 b8B Ra7 Bbe5 Rb7 Bc7 Rb3 Bcb6 Qh6 Rgh5 Rg3 Rg5 Qh5 Qe5 Bd7 Kd5 Be6+ Kc6 Be7 Bd5 Bg2 Kc7 Be4 Ng7 Bg6 Nf5 Nc5 Be4 Nd3 Nh4 Qf3 Qd6 Bf8 Kd8 Bg7 Qd5 Bh6 Rg4 Bhg5 Nf5+ Bh4 Rg5
b2nNrN1/1q3pP1/1qq5/1RpQR3/1q1BKPR1/B1P3Bq/k6n/2b1N1r1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 Kd2 Ke7 Ke3 Ke6 g4 c5 b4 a5 b6 h5 f3 d5 g5 a4 g6 a3 b7 h3 c3 d4+ Ke4 d3 b5 h4 b6 a2 Bg2 h2 Ba3 h3 Nd2 Nh6 Rb1 a1Q Rb5 Nc6 b8B Qb1 b7 Qb6 e3 Nd8 g7 Ng4 Bc7 Be7 b8B Bg5 Bd6 Kd7 e6+ Kc6 e7 Rf8 e8N Bb7 Be5 Qb4+ Bd4 Ra5 Bg3 Ba8 Ne2 Ra6 Rg1 h1Q Nf4 h2 Nd5 Ra4 Ndf6 Bh6 Bb2 Ra1 Ba3 Rc1 Ng8 Ra1 Nc4 d2 Nb2 Rc1 Nd3 Rb1 Qc1 d1Q Ne1 Qda4 Qd2 Qd1 Kf5 Kd5 e4+ Kc4 e5 Kb3 e6 Ra1 Qd3 Ka2 e7 Bc1 f4 Qda4 Bf3 Qg2 Bb7 h1Q Bc6 Nh2 Ke5 Qgb2 Qg6 Qhg2 Qd6 Qh3 Ke4 Qd1 Nef6 Qdg4 e8R Qd7 Re5 Qbb7 Ra5 Q4b6 Rb5 Qb4 Ne8 Be3 Nc2 Rd1 Rg2 Rg1 Ne1+ Bd2 Bf2 Be3 Rg4 Bc1 Bg3 Qdxc6+ Qd5+
2r2R2/1pb1n1Nr/q2nPnNB/1b3Bn1/4P1P1/n5Bk/1Q3pq1/R1NKR3 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 c4 e5 cxd5 g5 fxe5 gxh4 g4 Ke7 a4 c5 d4 f5 e4 h5 a5 h3 e6 Kf6 a6 f4 d6 Kg5 d5 Kh4 d7 c4 d6 f3 a7 f2+ Kd2 c3+ Kc2 h2 Ra3 b3+ Kd3 b2 Kc2 Rh7 Bb5 Nf6 Ra4 Qa5 d8B Nc6 d7 Ne7 Ra3 Qa6 Nd2 b1N Ne2 Kh3 Ra4 h4 Re1 h1N Nc4 Ng3 Qd2 Ngf5 Ne5 Nd6 Ng6 Na3+ Kd1 Bh6 Bc6 Bf4 Qb2 Be5 Bh6 c2+ Kd2 c1N Kd1 Bg3 Bc7 Nb3 d8R Nd2 Rf8 Nf3 Be8 Bd7 Nc1 Rc8 a8N Bb5 Bb8 Ng5 Nc7 Kg2 Bf7 h3 Ne8 h2 Ng7 h1Q Be8 Kh3 Ra5 Nc2 Ra1 Na3 Bf7 Qg2 Bg8 Rh8 Bh7 Bh2 Ne5 Bg3 Bf5 Rh7 Ng6 Ndf7 Ba7 Bc7 Bd4 Nd6 Be5 Qg1 Bf4 Qg2 Bg3
3R2nr/1k2B3/5bb1/RrQ2p1q/BPN3N1/rnp1NP2/1Bq2P2/q1rR1K2 b - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 g5 Qc2 gxh4 Qd1 b5 axb5 Qd3 Ra5 Qb3 Ra1 Qf3 exf3 Bf5 Na3 Be6 Nb1 Bc8 b4 Kd7 g4 c5 d4 Kc7 b6+ Kb7 d5 e5 g5 h5 g6 a5 d6 c3 d7 e4 d8B e3 g7 c4 Be2 h3 Bf6 h2 Qd2 a4 Bb2 h4 Be7 a3 Qd5+ Nc6 Qd1 h3 Bf6 c2 Qd4 c1R+ Qd1 c3 Kf1 a2 Bb5 Be7 Ba4 Na5 Qe1 Bf5 Nd2 Nb3 Ne2 Bg6 Nc4 Ra7 Rg1 h1R Ng3 h2 Nf5 Ra5 Bg5 Rb5 Qd1 Bf6 Qe1 Kb8 b7 Ka7 b8R e2+ Kg2 Ka6 Rd8 Kb7 Qd2 e1Q Qe3 Qd1 Qc5 Qd3 Rd1 Qc2 Nfe3 Re1 Bh4 Re2 Kf1 Rd2 Rb1 a1Q Bg5 Rd6 Bh4 Ra6 Bg5 Ne7 g8N Ra8 Nh6 Ng8 Nhg4 Ra6 Bh6 Ra7 Bf8 Ra6 Kg2 Ra8 Be7 h1Q+ Kg3 Qh5 Kg2 Bg7 Kf1 f5 Ba3 Ra6 Rb2 Bf6 Ra2 Raa5 Bb2 Rb6 Bd7 Rab5 Raa8 Ra6 Be8 Ra3 Ra5 Rb6 Ba4 Rb5 Rd3 Be5 Rd4 Bf6 Rd8
1q1r2R1/N2p1PqB/1bb1N3/1P1r2R1/r4B2/n3RNnp/3Qn1PK/rk5B b - - 0 1 illegal: Other
1Q1b4/4P3/2Br1pB1/1N4rR/1b1Nq1n1/pr2PPk1/2rNnr1R/2B1rR1K b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Bd6 h4 gxh4 a4 bxa4 b5 Ba6 b6 Bb5 cxb5 Bf8 g4 Ke7 b7 Ke6 b6 d5 f3 c5 Kf2 h5 Kg2 a5 g5 Kf5 e6 a3 g6 c4 g7 h3+ Kh2 h4 Qd2 a2 Bb2 a4 Qc3 Kf4 Na3 d4 Qa5 d3 Rb1 a1B Qe1 d2 Qf2 d1R Rc1 c3 Nb1 a3 Nd2 c2 Bd4 Qe8 Nb1 Nc6 b8R Ra5 b7 Bb4 Ba7 Rd6 Qb6 Nh6 g8B Nd4 Bh7 Rg5 Nd2 f6 Be4 Bac3 Bg6 Rh7 Ra1 c1R e7 Qa4 Rf8 Rc2 b8N Qc6 Rc1 Qe4 Na6 Rh8 Rf7 Rb8 Nc7 Ba5 Qb3 Bcb4 Nb5 Bd8 Rf8 Rbc8 Bb6 R8c3 Rh8 Re3 Qb2 Rec3 Ba5 Rb3 e3+ Ke5 Bb6 Rf5 Re1 Rd3 Rd1 Bc5 Qb4 Rb3 Ne2 Ng4+ Kg1 h2+ Kg2 Rh5 Nc7 h3+ Kg3 Rf5 Ba7 Rh5 Qb8 Bb4 Ng1 Rf5 Bb5 Rh5 Ne2 Rf5 Rhg1 h1R Rg2 h2 Bc6 Rf1 Nb5 h1R Rh5 Rf2 Rgh2 Rhf1 Nf4 Rh1 Ne6 Ne2+ Kh3 Rg1 Re1 Rgg2 Reh1 Rg1 Bb6 Re1 Rg1 Rff1 Kg2 Rf2+ Kh1 Rg5 Rh6 Rh5 Rf1 Rf5 Bge8 Rh5 Bd4+ Kf5 Bb2 Rd5 Bb7 Rd6 Ned4+ Kg5 Rh7 Rh6 Bbc6 Rg6 Bc1 Rg7 Rg2 Rg8 Bh5 Kh4 Rh2+ Kg3 Rh6 Rg5 Bg6 Bc7 R6h4 Bd8 Rh5
K1N2nb1/2BB2R1/3r4/PN2bB1Q/1Rn2b2/1kN3pn/q1pnPP2/2br3R b - - 0 1 illegal: No proof kernel
2n2R2/3qrQ2/1k1BRPP1/4BR2/1PNbN3/2pBpNr1/1bb5/1b2Knrr b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 f4 c5 b4 Kc7 g4 e5 g5 a5 f5 h5 d6+ Kb6 d5 h3 g6 h4 f6 h2 d7 a4 d6 h3 Bc4 e3 Ba3 e2 Bd3 e4 Qd2 c4 Bc2 c3 Qf4 Nh6 Qg3 Ng4 Nd2 Ra7 Qe5 Ne3 Nb1 Nf1 Qd5 Nc6 Qf7 Ne7 Bc1 a3 Nd2 a2 Bd3 Ba6 Ngf3 Nc8 Rg1 h1R Rg5 h2 Rf5 Rh3 Rb1 Qe8 d8R a1B d7 Bb2 Ra1 Bc5 Nc4+ Kb7 b6 Bd4 Ra4 Rg3 Bf4 Bb5 Ra3 Ba4 Be5 Bc2 Ra6 Rhg1 Bd6 h1B Be5 Qe7 Rf8 Qe6 d8B+ Qd7 Be7 Bg2 B7d6 Bh3 Rh5 Bf5 Rg5 Kc6 b7+ Kb5 b8N Rb7 Ra8 Bb1 Na6 Rc7 Ne3+ Kb6 Nc5 Bc2 Re8 Rh1 Re6 Rhg1 Kf2 e1R Rh5 Rc1 Ke2 Rd1 Nc4+ Kc6 Rh8 Rh1 Na4 Bb1 Rf8 e3 Ra5 Qe8 Bc2 Nh2 Nc5 Rdg1 Bf4 Nf1 Ke1 Re7 Rb5 Bd3 Ne4 Qd7 Rf5 Kb7 Bfe5 Ka7 Bd1 Bdc2 Be2 Kb7 Bd3 Ka7 Na3 Kb6 Nc4+
1R4Nn/4RR1K/1qb2bB1/3p3B/1p2b2k/PP1b1Pb1/N1qBQ1N1/q4rn1 b - - 0 1 illegal: No proof kernel
4qbK1/Pk4pB/1n1Nr2p/2nN1qn1/4B2P/1nQ1R2b/R2P4/b1NRn1B1 b - - 0 1 legal: proof: f4 d5 g4 f5 b4 e5 c4 a5 cxd5 axb4 Nh3 b5 Ng1 Ra6 Qc2 Rf6 Qb3 exf4 Qd1 f3 Ba3 f4 Bc1 Rf5 gxf5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 h4 c5 e4 Kc7 a4 b3 e5 h6 f6 c4 f7 b4 a5 b2 d6+ Kb7 e6 c3 e7 b3 e8B c2 d7 Nc6 Nc3 b1N Rh2 b2 Rh3 Nf6 Ra2 Nh7 Nge2 Na3 Nd5 b1N Bb2 c1B Qc2 Nd4 Bg2 Ng5 Qc3 Nac2 Rg3 Nb3 a6+ Kb8 a7+ Kb7 Ba1 Bb2 Nc1 Nba3 Bh1 Qe7 Bg2 Nc4 d8N+ Ka8 Nb7 Nb6 Bd7 Qe8 Bf5 Ne1 Bh7 Bh3 Nd6 Rg8 Qc5 Bf6 Bd4 Rh8 Be3 Ba1 Qc3 Rg8 Bf1 Rh8 Bfd3 Rg8 Bde4 Rh8 Kg1 f2+ Kh2 f1Q Bg1 Qfb5 Rd3 f3 Kg3 f2 Kf4 f1N Rf3 Ng3 Re3 Qb8 Ke5 Rg8 Bef5 N3e4 Bfg6 Nec5 Be4 Be7 f8R Q8e8 Rf6 Rf8 Rf4 Rf6 Rg4 Re6+ Kf5 Bg2 Rf4 Bf8 Rf1 Nef3 Rd1 Ne1 Qe5 Nf7 Qf6 Bh3+ Kg6 Qd3 Bg8 Qb1 Kh7 Ng5+ Kh8 Qd3 Bgh7 Qf1 Kg8 Qf5 Nf7 Kb7 Qb2 Qa8 Qc3 Qe8 Nd6+
6N1/p1q4p/q1N1B2r/qk3Qb1/r2r1R2/2BRPn1b/P1RqPqB1/K3N3 b - - 0 1 legal: proof: h4 c5 b4 g5 bxc5 gxh4 d4 e5 Rh2 exd4 Bb2 Na6 Rh1 Nc7 Ba3 Nd5 Bc1 Ne3 fxe3 Qa5+ Kf2 Qc7 Ke1 Qd8 Kd2 b5 g4 d5 c4 Kd7 Kc2 Kc6 Kb2 f5 g5 f4 g6 b4 g7 f3 Nh3 f2 Nc3 d3 Na4 d4 Qd2 b3 Nb6 Nf6 g8B Be7 Nf4 h3 Kb1 h2 Ne6 b2 Nd7 Ng4 Bh3 f1Q Nf4 Ne5 Nf6 Rb8 Ng2 Rb4 Qc2 d2 Ne1 d1Q Bg2+ Qf3 Rf1 h1R Qd3 Qa4 Bd2 Rh6 Bf7 Bh3 Qf5 d3 Be6 Qa6 Rf2 Kb7 c6+ Kb6 c7 Ra4 c5+ Kb5 c8R Qda5 c6 Rd8 c7 Rdd4 Ng8 Bg5 Bb4 Qg3 Rf4 Qf3 Bd2 Qf2 Bb4 d2 Rd8 Re4 Rd3 Rd4 c8N Qc7 Nce7 Qca5 Kc2 b1Q+ Kc3 Qd1 Kb2 Qc7 Nc6 Qca5 Rc1 Qc2+ Ka1 d1Q Nd8 Qcc7 Bc3 Qc2 Nc6 Qd2 Bed5 Nf3 Rc2 Kc5 Bb3+ Kb6 Bd5 Kb5 Be6+
2bbq1Nk/2b3rR/N1q1BRPb/4Q3/2Pp1qr1/1RBPpr2/Kn5B/7N b - - 0 1 illegal: No possible last move
4NRB1/1pnk4/1K1b2B1/1b3RqN/rP3p1B/NnPP4/2q3q1/Rbq1nQ2 b - - 0 1 illegal: No proof kernel
b3R3/rp1k1NRK/nB2r1n1/nrBB4/1PnP3p/1NR4n/2b4P/1NQ1b3 b - - 1 2 illegal: Other
q1bKB2R/kr1N2b1/B2qbr1p/1N1pP3/R5R1/2n2B1n/3PPNp1/1n2Q3 b - - 0 1 illegal: No proof kernel
6R1/3nP1nQ/K1R3Pp/1prqBkb1/b6N/1N2r2B/pR2P1r1/2qBn2N b - - 0 1 illegal: No possible last move
Bbk1K3/B2PR1Q1/1nnrn3/1qqNp2P/2b3N1/P4p1r/RN1p2R1/2q1B3 b - - 0 1 illegal: No possible last move
r5NB/1Pp1Nn2/NR2Bqp1/1p3q1r/R2qR2P/b1n4k/1P1Q2r1/Bb2K3 b - - 0 1 illegal: Other
6Rk/5bpp/2n1PnbP/2b1R3/Br2N1p1/1BKN2Rr/2PQ1NB1/2b1q1b1 b - - 0 1 illegal: No possible last move, all moves rejected
1b1r2R1/P1qN1Q2/r3B1NK/3B1R1P/1r1P2p1/1Nrp4/1p3Bb1/3Rnrkn b - - 0 1 illegal: No proof kernel
K1n3R1/1NQ3pn/pr1NP2n/1b1BprRB/kP4rR/6rB/PN6/5qb1 b - - 0 1 illegal: No proof kernel
RRn2b2/1BQq1P1N/1pb5/1b4p1/B4rBN/2r1R1N1/1Pkp2P1/Kn3nb1 b - - 0 1 illegal: No possible last move
2Br1q1N/1pkbb3/PR3P2/b5pr/np3QN1/Rn2B2P/B2Rn1n1/N4K2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 a4 d5 f4 Kd7 c4 e5 a5 g5 h6 d3 h7 d2+ Kf2 e4 a6 d4 c5 d3 c6+ Kc7 f6 Ne7 f5 Bd7 h3 Ng6 f7 Nf4 Na3 Ng2 Nc2 Be7 Ra3 Qf8 Nf3 e3+ Kg1 e2 Nh2 e1B Qg4 d1N Be3 d2 Bc4 Bh4 Ba2 Nb2 Na1 d1N Kf1 Nc3 f6 Nba4 Qf4+ Kc8 c7 Bg3 Ng4 Ne2 Rh2 Nc6 Qe4 Na5 Qf4 Qd8 f8R Nb3 Re8 Bf2 Bd2 Bb6 Bc1 Ba5 Be3 Bd6 Re6 Be7 Rb6 Qf8 Ne5 Rg8 h8N Rb8 Nhg6 Rh8 Ng4 Rh5 Nh8 Bf5 Bd2 Kd7 Be3 Rd8 Qf2 Be6 c8B+ Kc7 Qf5 Bd7 Qf3 Ne1 Rf2 Ng2 Qe4 Ned4 Rd2 Ne2 Qf4+
1Q3r2/2k1b1N1/2Np1b2/1rnpB2q/1RNBP2n/2pR1R2/2PP1Bq1/1nK2n2 b - - 0 1 legal: proof: g4 f5 a4 fxg4 h3 b5 axb5 e6 Bg2 Qe7 Be4 Qd8 Bd5 exd5 b6 g5 Rh2 g3 Ra3 g4 Rg2 Ba6 Ra5 Bd3 Rh2 g2 Rh1 g3 Ra4 Bf5 Ra1 Bg4 hxg4 Qh4 Ra4 Qg5 Ra1 Qd8 e4 a5 b4 c5 f4 h5 g5 c4 f5 h4 g6 a4 b7 h3 f6 a3 g7 a2 b5 h2 f7+ Ke7 b6 Kd6 Na3 Na6 b8R Ne7 g8N Nc5 b7 Qe8 Ne2 g1N Nh6 g2 Bb2 Ng6 Nf5+ Kc7 Bd4 Ra5 Qb1 Nh4 Kd1 Be7 f8B Qh5 Ng7 Rb5 Kc1 Ngf3 Bf2 g1N Nd4 d6 Nc6 Rg8 Qb4 Rh8 Rb1 a1B Rb3 Baf6 Rd3 c3 Nc4 Nd4 Qb1 Ngf3 Rf1 h1Q Qb2 Qg2 Qb3 Nde6 Bd4 Nh2 Rff3 Nf1 Bf2 Bd8 Be7 Rf8 Qb2 Bg5 Bf6 Nd4 Be5 Bdf6 Ra8 Rb3 Na3 Bd8 Ra4 Nb5 Nc4 Na3 Bfd4 Rb6 Qb5 Bde7 Rb4 Bgf6 Bf2 Kd7 Bfd4 Nb1 Bf2 Na4 b8B Rb7 Bba7 Kc7 Bad4 Nc5 Qa6 Rb6 Qa8 Rb5 Qb8+
BNRrN1k1/bB1bq3/3pP1K1/b2R3Q/R5p1/P2P2bp/q5n1/NBnr4 b - - 0 1 illegal: No proof kernel
2N3r1/N3Q1P1/3nbK2/1pB1N1p1/qr2q2P/1p1R2P1/1b1n1RBR/2b2Bkb b - - 0 1 illegal: No proof kernel
q1n4R/2PN3b/NnBp2Pr/1r2b2k/3B1P2/2N3p1/1q2np1R/1RQ1n1BK b - - 0 1 illegal: No proof kernel
2N3bR/Rp2Bb2/2NB3R/K1b1bq2/N2nnrp1/PrP4q/2Pp2Q1/5Bk1 b - - 0 1 legal: proof: b4 a5 Bb2 axb4 Ba3 c5 Bb2 c4 Bc1 c3 dxc3 h5 g4 hxg4 e4 f5 exf5 Ra4 Qd2 Ra3 Qd1 Ra8 Kd2 Kf7 f4 Kf6 h4 g5 h5 d5 h6 e5 h7 e4 Bg2 e3+ Kd3 b3 Rh3 g3 Rh1 g4 Rh3 b2 Bf3 g2 Qf1 d4 Kc4 d3 Kb5 e2 Bd2 e1B Ne2 g1Q Qg2 Bc5 Na3 b1B Nc4 Be6 Nd4 Bg3 Nd6 Qh2 Nc6 Ra3 Be2 Qf8 Bf1 Rb3+ Ka5 Bf7 Nc8 Qh1 Bc1 d2 Ba3 Qh2 Rh4 Qh3 Rh5 Nd7 Rh4 Ne5 Rh5 Nf3 Rh6+ Kg7 Bb4 Nf6 Ba3 Rg8 h8R Nd4 Bb4 Ne4 Ba3 Bh5 f6+ Kf7 Bb4 Ke6 f5+ Kd5 f7 Be5 f6 Rg5 Ba3 Rf5 Bb4 Rf4 Ba3 Qg7 f8N Bf7 Nd7 Qg5 Bb4 Bg8 f7 Qf5 f8B Bf7 Bd6 Bg8 a3 Ba2 Re1 Bf7 Be7 Ba7 Bbd6 Bc5 Rb1 Rb4 Rh5 Bg8 R5h6 Bb3 Qg1 Nf6 Ndb6+ Ke4 Qg2+ Ke3 Rb2 Bbc4 Rb1 Rb5+ Ka4 Bcf7 Rb4 Ne4 Rc4 Rb3 Rb4 Nf3 Rb5 Nd4 Ra5 Qh4 Ra7 Qh3 Qh1 Kf2 Ka5 Qd3 Na4 Qh3 Qf3+ Kg1 Qg2+
5BK1/PRRP1RNB/r5r1/r3bppB/b1rnpP2/1NN5/8/k2rq1Qr b - - 0 1 legal: proof: e4 a5 d4 h5 g4 c5 gxh5 d5 b4 axb4 Qd3 Na6 Qd1 Nc7 Nc3 cxd4 Nb1 d3 Be2 d4 Bf1 Nd5 exd5 Ra4 Bh3 Ra6 Bf1 Ra8 Kd2 Kd7 h4 Kd6 a4 Ke5 c4 g5 f4+ Ke4 d6 b5 c5 e5 c6 b3 c7 b4 a5 f6 a6 b2 a7 b3 h6 Bd7 c8B Ne7 h7 Be8 h5 Rb8 h6 Qd7 Nf3 Nc6 Be2 Rb4 Qg1 Rg8 h8N Bg7 h7 Qe6 Nf7 Rc4 h8R f5 R1h7 Bf6 Nd8 Rg6 Rc7 Kd5 Rg8 Kc5 Bb7 Kb4 Nc3 b1R Rf8 b2 Rff7 Kb3 Ba8 Qe7 Ne6 e4 Bb7 Be5 Ng7 Bd7 Ra4 Ra1 Rb4+ Ka3 Bc8 Be8 Be6 Qf6 Na4 Ka2 Rbb7 b1R Ba3 Rb6 Bc5 Qe7 Nc3+ Kb2 Bb4 Ra5 Bd1 Ka1 d7 Rba6 Ba3 Qb4 Be2+ Qb1 Bf8 Qf1 Re7 Qb1 Bg8 Bf7 Bh7 Bd5 Rf7 Qf1 Bd1 Qe1+ Kc1 d2+ Kc2 d3+ Kb3 Be6 Nd4 Bd5 Bh5 d1R Nde2 d2 Nc1 Nd8 Rb8 Ne6 Rbb7 Rcc5+ Kb4 Bc6 Kb3 Ba4+ Kb4 Rcb5+ Kc4 Nd4 Nb3+ Kb2 Nc5 Rb4+ Kd5 Ka1 Rf6 Nc6 Ke6 Rc4 Kf7 Nd4 Kg8 Rb1 Rf7 d1R Qf1 Rb2 Qh1 Rh2 Qg1 Rh1 Nb3+
2K1n3/2P1B1Q1/Rbk1p1B1/6np/brR1p3/Nb2NP1p/P1r4q/3RnB1N b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 c5 dxc5 g5 bxa5 gxh4 Kd2 h5 Ke3 d5 Kd4 Kd7 Ke5 b5 c4 e6 g4 d4 f3 h3 c6+ Kc7 c5 d3 g5 b4 a6 d2 g6 b3 a7 b2 g7 Rh7 Ne2 Nh6 g8B Bd7 Na3 b1B Ng3 Bc2 Bf7 Qe7 Bg6 Na6 Rg1 Ba4 Nh1 Rb8 a8R Rb4 Qe1 d1N Qc3 Be8 Bg5 Bb3 Rc1 Nb2 Rc2 Qd7 Be7 Qd2 Qd4 Rh8 Rc4 Nf7+ Kf6 Nd3 Ra7+ Kc8 c7 Qh2 Qc3 Kd7 c8N+ Kc6 Nd6 Rh7 Nf5 Nc7 Ne3 Ng5 Qd4 Ne1 Ra6+ Kb7 Qe5 Bea4 Qg3 Rg7 Ke5 Rg8 Kd6 Bg7 Qe5 Rc8 Qg3 Bd4 c6+ Kb8 Kd7 Bb6 Qg2 Ne8 Rd4 Rc4 Qb2 Rc2 Rc4 Rc7+ Kd8 Ra7+ c7+ Kb7 Rb4 Kc6 Qg7 Rb7 Kc8 Rc3 Rd4 Rc4 Rd1 Rc2 Rg2 Rc5 Rgd2 Rc2 Rd4 Qd2 Qf6 Qh2 Ra5 Bc5 Qg7 Rb4 Ra6+ Bb6 Rc4+
bkn2N2/Rp1qp1R1/1BBn1P1n/3NK3/1P2p2b/2N3PQ/pr2R1B1/3q1r2 b - - 0 1 illegal: Other
K3bn2/b1R1r1nq/B1Np2nP/2kp1B2/1Q2p1N1/PR2p3/Pr2nB2/3R2N1 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 d4 fxe4 d5 a4 d6 a3 bxa3 cxd6 Bh3 d5 Bg2 Rh7 Bf1 Rh8 Kd2 b5 Kc3 g5 Kb4 g4 Kc5 g3 h4 b4 f4 b3 c4 b2 h6 g2 h7 Ra6 f5 Bg7 f6 e5 h5 Kf8 h6 Ne7 f7 Ra7 Qe1 Ng6 Nc3 Ke7 f8R b1N Nd1 Nc3 Nf2 Nd1 Qb4 Ne3 Ng4 Nf5 Be3 Qc7+ Kb5+ d6 c5 Nd7 Bf2 e3 c6 e4 Rb1 Bd4 Rb3 Ng7 Rf7+ Ke6 Bc4 Ndf8 Rd7 Rb7+ Ka6 Ba7 Bd3 Rg8 h8N Kf5 Re7 Bd7 Nf7 Be8 Nd8 Rh8 Bb5 Rh7 Bc4 Qd7 c7 Rb5 c8B Kf4 Nf3 g1N Nc6 Ne2 Rd1 Qf5 Rc7 Qd7 Rbd3 Kf5 Ng1 Ke6 Qd2 Rb2 Rb3 Kf5 Kb7 Ke6 Nb4 Ke7 Ba6 Ke6 Nh2 Ke5 Ka8 Qe7 Bf5 Qf7 Bd3 Kd4 Nc6+ Kc5 Ba6 Nh5 Rf1 Qg8 Qe1 Re7 Ng4 Ng7 Qd2 Qh8 Rd1 Qh7 Qb4#
4N2K/R1N3n1/rBp1Np1k/1Q2rp2/R1n2nR1/P3P1Pn/b2pB3/B2q2b1 b - - 0 1 illegal: No proof kernel
K2N1b1Q/1R3NP1/p2Bbb2/Rpr1n3/p4bpP/7n/B1B3PR/k1rN3q b - - 0 1 illegal: No proof kernel
1n5N/p1K1b3/BBPrNk2/1NR1p1PP/1RB5/q4p1Q/R6p/3nrbbb b - - 0 1 illegal: No possible last move, all moves rejected
3R2B1/pP1R3n/2Nb3R/Nn1Nn2n/qrr1b3/QpP1Kp1k/1B1B1pP1/8 b - - 0 1 illegal: Other
1B2Q3/2KpN1qn/r3B1b1/1p2p3/1n3q1P/2RBP1P1/Rrr1NN1p/R3n2k b - - 0 1 illegal: No proof kernel
b6q/rpn1Rk1p/1p2Np2/3r2B1/b1q2B1P/K3NN1B/1Pq1Q1P1/R1b4R b - - 0 2 illegal: Other
K4R2/Nn2n3/2PBbN2/p4P1n/Rp1BN1R1/r2qpQ1B/Pkq3bp/b7 b - - 0 1 legal: proof: g4 b5 h4 g5 b4 a5 e4 c5 Bd3 cxb4 Be2 f5 Bc4 d5 Bf1 dxe4 gxf5 g4 Rh3 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Qd4 Nc3 Qd5 Nb1 Qd8 Ke2 Kf7 Ke3 h5 c4 e5 f4 h4 d4 g3 c5 g2 f6 Ke6 f5+ Kd5 c6 b3 g6 b4 g7 b2 f7 h3 Nf3 g1N Nfd2 Be6 Na3 b1B Nb5 Ne7 g8N Na6 Qf3 Bg7 f8R Ne2 Na7 Ng3 Bb2 Nc5 Rg1 h2 Bh3 Bd3 Rad1 Nh5 Rg4 Nb7 Rc1 Bc4 Rc3 Bf1 Ra3 Bg2 Ra4 Qd6 Bc3 Qc5 Ba1 Qc2 Bb2 Kd6 d5 Kc5 d6 Kd5 Nb1 Kc4 d7 Rh6 d8B Rg6 Rh4 Rg3 Nf6 Bh8 Bc7 Bg7 Bc1 Bh8 Nd2+ Kc3 Rg4 Bg7 Ke2+ e3 Bd6 e4 Ba3 Qb3 Bc1 Kc2 Bb2 Qd3+ Ke1 e2 Bd4 Kc1 Kf2 Qc2 Ke3 Bh8 Ba1 e1Q+ Kd4 Qe2 Ke5 Qec4 Bd4 Q4c3 Qf4 Rd3 Qf3 e3 Ne4 Kb2 Bb8 Nc5 Kd6 Nb7+ Kc7 Bg7 Kb6 Bh8 Bd6 Bg7 B4e5 Qd4+ Kc7 Ra3 Kb8 Qdc3 Bd4 Qd3 Bb6 Qcc2 Ka8 Kb1 Nd7 Ba1 Ndf6 Kb2 Bd4+
N2q1QB1/rq1BR1B1/p1PPpp1b/1k3b1n/1p1q2R1/1rb2K2/3RP3/4N1N1 b - - 0 1 illegal: No proof kernel
Q1rR4/2pBk1n1/2p1Nq2/3bp1pb/1P1bbRP1/2PnB3/BN1R3N/2b3K1 b - - 1 2 illegal: No proof kernel
7K/3r4/1pR1Q3/2R1B3/p2bNpqn/PPqq2NB/2npR1NP/2kBr1q1 b - - 0 2 legal: proof: f4 c5 g4 h5 gxh5 e5 d4 exf4 c4 cxd4 c5 b6 c6 Bb7 cxb7 Ba3 Nc3 Bd6 Nb1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ d3 a3 f5 h6 d5 h7 a5 Ke6 g5 Kf7 f3 e5 f4 e6 g4 e7 f2 e8B d4 Qe2 Kb3 Bc6 a4 Nd2+ Kc2 b3 g3 Qe8 g2 Nh3 g1Q Bb2 Bg7 Bf3 Nc6 b8R Nge7 Ra2 Qc8 Ng5 Nb4 Nge4 Ra7 Bh3 f1Q Ng3 Qc3 Rc8 Rd7 Nde4 d2 Rc6 d3 Bd1+ Kb1 Qc8 Re8 h8N Nc2 Ng6 Bd4 Nh4 Nf5+ Kg6 Qe2 Ng2 Nh4+ Kh6 Qg4 Ba1 Rd5 Kh7 Kc1 Rc5 Ree5 Kh8 Rd6 Qe6 Rd7 Be2 d1Q Rc6 Qdf1 Bd1 Nb4 Rf2 d2 Rc5 Qb5 Re2 Nc2 Rc6 Qge3 Rf1 Qg1 Rf3 Qcb4 Rfc3 Qd3 R3c5 Qbc3 Bb2+ Kb1 Qh6 Qb4 Re3 Bc3 Qe6 Qbc4 Ba1 Kc1 Nf6 Bb2 Rf3 Re2 Re3 Re1 Re4 Be5 Bd4 Qcc3 Re2 Bc7 Nfe4 Bb8 Bg7 Be5 Bf6 Bd4 Be5
Nr3R2/1b1p1n1K/4p2p/Nq2rBBP/6R1/q2P2B1/1N1P1pkQ/qq1R3n b - - 1 2 legal: proof: f4 g5 b4 gxf4 c3 b5 Na3 a5 Nb1 axb4 Nf3 b3 Ng1 b2 Qb3 b4 Qc2 Ba6 Qd1 Bc8 Qa4 b3 Kf2 c6 Qc4 Qb6+ Ke1 Qa6 Qd5 Qb5 Qf3 Qd3 exd3 Bg7 Qd1 Be5 Ke2 Bd6 Ke1 Bb4 cxb4 Ra6 Qg4 Ra5 Qd1 Ra8 Ke2 f5 Kf3 Kf7 a4 Kg6 h4 Kh5 g4+ Kg6 a5 h6 b5 e6 a6 c5 b6 c4 b7 c3 a7 c2 g5 Kh5 g6 Nc6 b8B Nd8 g7 Nc6 Ne2 Nf6 g8R Ng4 Nbc3 b1Q Nd4 b2 Qe1 Nd8 Rg1 Nf7 Nd1 Bb7+ Nc6 Nf2 Rf8 Nh1 Rg4 Rg8 Bd6 Rb8 a8N Rg7 Bh3 Rg5 Ke2 f3+ Ke3 f2 Kf4 Re8 Na5 f1Q+ Qf2 Rb8 Be7 Nd6 Ke5 f4+ Kf6 Re5 Kg7 f3 Kh7 Nf7 Bg5 Qg1 Qg3 Qc5 Qf4 f2 Qd4 Qa2 Qb4 b1Q Ba3 c1Q Nb2 Qg1 Qa4 Qb5 Bd6 Qa3 Qb4 Qba2 Rd1 Qa1 Qa4 Re4 Bg3 Re5 Rc4 Qe1 Bf5 Qg1 Be4 Kg4 h5 Kh3 Bf5+ Kg2 Rh4 Qe1 Qg4 Kf1 Qh3+ Kg1 Rg4 Qf1 Qh4 Kg2 Rc1 Qd1 Rb1 Qc2 Rd1 Qcb1 Qh2+
4N1r1/1b1pb1b1/1Q2kb2/P1BP1N2/1R1p1pR1/BnP4n/1K1np1R1/3BN1r1 b - - 0 1 illegal: No possible last move
1N2n3/pq4BQ/1p3Bbr/b1pp2n1/2Rp2r1/1P4PR/1k1PR2N/B1b2KN1 b - - 0 1 illegal: No possible last move
2R4r/3bn3/r1k1p1pN/1r1rQ1Bp/2pB4/4P2p/1bRRP1P1/n1N2KBN b - - 0 2 illegal: No proof kernel forced: bxLB
1K1kn1q1/BpB5/rPPn2Rp/2Q3R1/3N2BP/2q2n2/R3nbqr/n1Nb3N b - - 0 1 illegal: No possible last move
1rRr2R1/Bp1p2n1/b2KPk1N/1P5q/5B1b/nn3q2/B1NPqQ1R/1bqN4 b - - 0 1 illegal: No proof kernel forced: wxLB
1N1qrn1K/2Bqp3/q2P1r2/pqbbP1bk/PBN3R1/4N3/2n4R/2QR1Bb1 b - - 0 1 illegal: No proof kernel
Rn4nB/2prp2K/R1r1P2N/3B1n1p/1brN1NQ1/3q2qb/2P1P2q/R2kB3 b - - 0 1 illegal: No proof kernel
3KB3/2n1pNk1/1B5P/4P1NB/Nr1R1n1Q/p2qb1n1/Prp4R/1rb1bb1R b - - 0 1 illegal: No possible last move
Bn5n/1BRbb1pN/1RNp2Q1/1kb2r2/1rr1r3/p1R3P1/1BKPP3/2N1qn2 b - - 0 1 illegal: No proof kernel
3N3R/2ppNQ2/3k1Kb1/1nPp1R2/rNbPqPb1/4br2/1b3B1q/B3nB1R b - - 0 1 illegal: No possible last move
bn1B2r1/2NN1pNq/2q1RPP1/1b1RK1Q1/3p1Br1/n2P2p1/4b3/bk1B1r1R b - - 0 1 illegal: No proof kernel
KBR3Nq/1rP1q3/4b2b/RBN1p2r/2R1P1Qp/2nn2N1/1p3BbP/2bq2k1 b - - 0 1 legal: proof: d4 c5 g4 cxd4 b4 f5 gxf5 a5 Bg2 axb4 Bh3 Ra3 Bf1 Ra8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 c4 h5 f4 d5 a4 e5 e3 g5 a5 d3 c5 h4 f6 g4 c6 d4 c7 g3 Kb6 d2 f7 d3 f5 b3 a6 g2 a7 b2 f6 Bh6 f8R Qe7 f7 Na6 Na3 b1Q+ Nb5 Nc5 Ra5 Be6 Rc8 Nf6 f8B Rb8 a8N Nd5+ Ka7 Nc3 Ne2 Kf3 e4 Kf2 Nd6 g1B Nf5 b5 Neg3 b4 Qg4 d1Q Bd2 b3 Nb6 Rb7+ Ka8 b2 Be2 Qbc1 Be1+ Kg2 Nd7 d2 Ba6 Nd3 Bb5 Bge3 Nc5 Qa1 Rf1 Rh7 Rf3 Kg1 Rf2 Qa3 Re2 Qf6 Ne7 Qh8 Ng8 Qb4 Na6 Qe7 Nc5 Qb3 Rf2 d1B Rc2 Bf3 Rc1 Qd1 Rc2 Bg2 Rc1 Nb1 Rc4 Qd6 Be7 Bc1 Bg5 Nc3 Be3+ Nf2 Nb3 Qd7 Ba7 Qe7 Bb8 Nd3 Nc5 Bhd2 Nh1 Rh5 Ng3 Bh6 Bf2+
3bn1Nn/1RP5/bB2pp1R/BpK1Pq2/qN3r1N/k4PR1/2B3rr/rQ5n b - - 0 1 legal: proof: d4 c5 b4 cxd4 g4 h5 gxh5 a5 Bh6 axb4 Bf4 Rh7 Bc1 Rh8 Kd2 g5 Kd3 b5 c4 d5 e4 Kd7 h4 Kc6 a4 Kc5 a5 e6 a6 b3 a7 Kb4 c5 b2 c6 g4 h6 g3 c7 g2 h5 Nd7 h7 Qg5 h6 Be7 Na3 b1R Nf3 g1R Be3 Nf8 Nh4 Rg2 f3 Qf5 Nc2+ Kb3 Qe1 Ba6 Nb4 Ng6 Rh2 Rd8 a8R Rf8 Rb8 Bd8 Rb7 Nf6 Ra2 Ra1 Qb1+ Rb2 Rg2 Ne8 Rg3 Rhg8 h8B Rg7 Qe1 Rh2 h7 Rgg8 Rf2 Ka3 Qb1 Rg7 Bd2 Rgg8 Bf6 Nh8 Bfg5 Rg7 Bge3 Rg4 Be1 f6 Be2 Rfg8 Bd1 Rf4 Bc2 Rg6 Rfg2 Rg8 Rg6 Rg7 Rh6 Rg5 Kd2 d3 Kc3 d2 Kd4 d1Q+ Kc5 d4+ e5 d3 Rg3 d2 B3f2 Qc1 Bd4 d1N Be3 Nf2 Bc3 Ng6 h8N Qd1 Nf7 Nh1 Rg1 Qc1 Ba4 Qb2 Bc2 Qb3 Kc6 Rd4 Na2 Rg3 Rh5 Re2 Nh6 Qf4 Ng8 Rh2 Rh6 Nh8 Ba5 Qf5 Nb4 Rf4 Beb6 Qa4 Kc5 Rg7 Rg3 Rg6 Rh3 Rgg2 Rg3
nN2K3/2p1NpPn/Q1pB2BR/b2p4/bnPr1r2/B3qPb1/2RN2R1/k3q3 b - - 0 1 illegal: No proof kernel
4rB2/4NbP1/n1qN1p2/p1kp1K2/1n2r3/Rb4qB/1pnPRPRB/2QN2b1 b - - 0 1 illegal: No proof kernel
4rBQ1/P1rpq1r1/N1p5/B2P2R1/n1p2p1n/2b1rRNn/B4PkN/1K4Rb b - - 0 1 illegal: No proof kernel
2rnNR2/1qp1Nbbk/1p5B/2P4n/1Ppn1p2/1NKR4/Q3B1bP/4BbRr b - - 0 1 illegal: No proof kernel
2qq2Q1/r1R1pKpq/RPn1P2p/1B1rB1P1/3N1N1N/b1q5/3Bn2p/2R2b1k b - - 0 1 illegal: No proof kernel forced: wxDB
B2N4/r2p3N/RQp2prB/2P1n2K/2qNrB1n/2R1r3/1rRP1Pp1/q1b1k3 b - - 0 1 legal: proof: e4 h5 b4 a5 g4 hxg4 e5 axb4 e6 f6 Bc4 b6 Bf1 Ba6 Nh3 Bd3 Ng1 Bg6 Ne2 Bf7 Na3 Qc8 exf7+ Kd8 Nb1 Qb7 Na3 Kc8 Nf4 Qa6 Nh3 Kb7 Ng1 Kc6 Nb1 Qc8 Na3 Qe8 Nb1 Qd8 Ke2 Kc5 a4 Kc4 h4 e5 c3 g5 h5 b5 h6 b3 a5 b2 h7 e4 a6 b4 a7 g3 Ra4 g2 Ra1 g4 Qc2 e3 Qd1 g3 Kf3+ e2 Kg4 Kd3 c4 b3 Ra3 Qc8 Kh5 Nh6 Nc3 b1R Nf3 g1R Ng5 b2 Qb3 Nc6 Qb6 Nf5 Bg2 e1R Nb5+ Ke2 Rc3 Ba3 f8B Ne5 Bh6 Re8 h8N Nh4 Nd4+ Kd1 Bc6 Re4 Nh7 Ke1 Nf7 Qa6 c5 Qc4 Bb7 c6 Rh3 g2 Rhg3 Rg8 Nd8 Rg6 Rc2 Rh1 Rgc3 Rh3 Nf5 Rhe3 Nd4 Rb8 a8R Ra1 Ra5 b1Q Ba8 Ra2 Bb2 Qa1 Ra6 Rb7 Rb3 Ra7 Bc3 Bb2 Ba5 Bc1 Rbc3 Kd1 Qb3 Ke1 Bc7 Rb2 Qb6 Nf7 Bh2 Ne5 B2f4
K1b5/Np1bnpNB/1pr1n1p1/1B1n1qQp/1P1Pr1RR/4B2R/1b3P1k/3N4 b - - 0 1 illegal: No possible last move, all moves rejected
5R1b/R1N1r3/R2B4/4Nn1Q/1B4n1/q1bPNq1r/q4nPP/n3k1KQ b - - 0 1 legal: proof: c4 a5 f4 d5 cxd5 b5 a4 e5 axb5 exf4 b3 a4 e3 g5 b6 a3 Be2 Bd7 Qc2 Ba4 Qxh7 g4 Bf3 gxf3 bxa4 Qf6 Qe4+ Qe7 Qh7 Qd8 Kf1 Ke7 b7 Kf6 d6 Kg5 e4 c5 e5 f5 a5 a2 d7 f2 d3 c4 a6 c3 a7 c2 e6 Qe7 d8N Na6 b8B Bg7 Be5 Nh6 Nd2 Nc5 Nb7 Ne4 Ba3 c1B Bed6 Ng4 Na5 Bc3 Bb2 Rae8 Be5 Qa3 a8Q Re7 Qf7 Rh3 Nb1 Be3 Qb8 Bed4 Bd6 Bh8 Ke2 f1N Nc4 Nef2 Ne3 Ng3+ Kf3 Qc5 Na3 Qb4 Nb5 Qa3 Rf1 a1N Nc7 Nh5+ Ke2 Ng7 Rc1 f3+ Kf1 Qa2 Bba3 f4 Qb1 Nf5 Rc2 Ne4 Bab4 f2 Ne2 Qa3 Nd4 Qa2 Nc6 Qa3 Ne5 Qa2 Ke2 f3+ Kd1 Kf4 Qh5 Qa3 Re1 f1Q Ra2 f2 Qc1 Qb2 Ra7 Qa3 Qb1 Qg1 Ke2 Qh1 Rd1 Qa2+ Rd2 Qc1 Rc2 Qca3 Qh1 Rh7 e7 Rg7 e8R Re7 Qe1 f1Q+ Kd1 Neg3 Rf8 Ne4 Re2 Qf3 Qh1 Bd4 Ke1 Nef2 Kf1 Bb2 Rd2 Bc3 N3c4 Rf7 Kg1 Re7 Nb2 Ke3 Rc2 Be1 Rc6 Ke2 Nbc4 Bc3 Rca6 Ke1 Ne3
6bb/3P2R1/2PQB1KQ/3N3P/N1b3n1/2Qr3R/1nr1kB1b/1qq1r1N1 b - - 0 1 legal: proof: b4 b5 e4 d5 g4 h5 gxh5 f5 exf5 c5 bxc5 b4 c4 dxc4 a3 a6 axb4 a5 c6 axb4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 h4 e5+ f6 c3 d4 c2 f4 b3 f5 b2 d5 Nh6 d6 Ra2 d7 Qb6 f7 Ng4 h6 Ba6 h7 Bc4 f6 Na6 Ne2 Kf3 Kg6 e4 Qd4 e3 Qc3 Nc5 Nf4 Nd3 Nd5 e2 Be3 c1Q Bh3 e1R Nd2+ Ke2 Bf2 b1B Nf3 Rc2 h5 Rg8 h8Q Nb2 Ra5 Bba2 Qh6 Bd6 f8N Bh2 f7 Qb4 Kh7 g5 Ne6 Rg6 Nc5 Rd6 f8Q Qb3 Nc7 Rd3 Qfd6 Be5 Ra3 Bh8 Kg6 Bg8 Rg1 Qb8 Ne8 Bac4 Na4 Qb3 Rg2 Qa2 Nf6 Qab1 Rg3 Nh2 Ne5 g4 Qb3 Rg1 Nd5 Rdd1 Kf5 Rge1 Qbb4 Rdd2 Raf3 Rd4 Qc3 Rd3 Rg2 g3 Rg1 g2 Rg3 Bg7 Nf3 Bh8 Bg4 Nf1 Rh3 Ne3+ Kg5 Nbd1 Be6 Nb2 Rgh1 g1B R1h2 Bf7 Rg2 Bg8 Rgg3 Bh2 Rg2 Ng4+ Kf5 Ne5 Rg7 Ng4 Kg6 Qf4 Ne5 Qd2 Nf3 Qdc1 Ng1+
q3Qb1n/4B1b1/3K1bN1/1Q2n2P/R1qnPpR1/3k2qB/P1N4n/RB6 b - - 0 1 legal: proof: d4 c5 b4 a5 f4 axb4 c3 e5 Qd3 exf4 Qd1 b5 c4 d5 cxd5 c4 Qd3 Ra3 Qd1 Ra5 g4 h5 h3 g5 Ba3 Ra7 Bb2 Rc7 Bc1 Rc5 dxc5 h4 Na3 Bd7 Nb1 Rh5 gxh5 g4 Kd2 g3 Ke1 Bg4 hxg4 Bg7 Bh3 Bh6 Bf1 Bf8 Kd2 Ke7 e4 Kf6 g5+ Ke5 d6 Kd4 d7 f5 c6 g2 g6 h3 g7 h2 c7 f3 c8B f2 Be2 b3 Na3 b2 Rb1 b4 Nh3 g1B Qf1 c3+ Kc2 f4 Kb3 c2 Bd1 Nc6 Qe2 f1N Bd2 c1B Qg4 Ne5 Be3+ Kd3 Qg5 Ne7 g8R N7g6 Bc5 Nh8 Be7 Bd4 Nc2 Bg7 Rg1 h1N Rg4 Nhg3 Ng1 Nf5 Ra1 Nh2 Nf3 b1Q+ Ka4 b3 Kb4 b2 Nh4 Bc3+ Kc5 Nd4 Ng6 Qc7+ Kd5 Qc4+ Kd6 Be3 d8Q Bg1 Bf3 Qe1 Bd1 b1Q Qe8 Qb7 Rf8 Qa8 Rf6 Nef3 Qgb5 Qg3 Rf5 Bf6 Rc5 Bb2 Rc7 Be3 Ra7 Ne5 Ra4 Bd2 Rg5 Ba5 Bh3 Bd8 Rg4 Bg7 Bf8 Bdf6 Be7 Bf8 Ne3 Kc3 Bc2 Kd2 Bb1 Bc3 Nc2 Kd3 Ra6 B6g7 Rc6 Nb3 Qa6 Nd7 Qb5 Bcf6 Ra6 Nd4 Ra5 Ne5 Ra4
R4qbn/4pP2/P4Q1n/nB6/1Q1Prp1R/Nk1b1QN1/6B1/1nBK1b2 b - - 0 1 legal: proof: b4 d5 b5 d4 c3 a6 cxd4 axb5 Qc2 b4 Qb3 Na6 Qd1 Nb8 g4 h5 gxh5 c5 d3 c4 Qc2 cxd3 Qd2 Ra7 Qd1 Ra8 e3 f5 Qg4 b5 Be2 g5 Qe4 g4 Qg2 g3 Bf1 Bh6 Qf3 g2 Qd1 Bf4 e4 Bg3 fxg3 f4 Qe2 Ra6 Qc2 Rf6 Qd1 Rf5 exf5 Be6 Qd2 Bd7 Qd1 Bc8 a4 Kd7 h4 Kd6 f6 Kd5 g4 Kc4 a5 b3 g5 b2 g6 b4 g7 b3 h6 Ba6 h5 Qf8 h7 Nh6 Rh3 Nc6 Ne2 g1N Rh4 Nh3 Bg2 Ng5 g8B+ Ngf7 Ng3 d2+ Ke2 Bb5 Qf1 Ba6 Qf3 d1B+ Ke1 Kb4 Na3 b1B Kd2 b2 Ra2 Nf5 h6 Bb3 Ke1 Bbc4 Kd1 Bbd3 Ra1 b1N Ra2 Nfd8 Bd5 Rg8 h8Q Rg5 h7 Kb3 Qg7 Bb5 h8Q Nf7 Be6 N5h6 Bd7 Re5 Qg6 Qa8 Qb8 Nh8 Be8 Bg8 f7 Re4 Qf6 Nd8 Qbb6 Nb7 Qc5 Bc4 Bb5 Qd8 a6 Qe8 Rc2 Qf8 Qcb6 Na5 Qb7 Bd5 Rc8 Be6 Ra8 Bh3 Bh1 Bf1 Bg2 Qc8 Qbb6 Qe8 Qbd6 Qf8 Qb4+
1N2rR1Q/1nQ1b2n/1bR2nP1/1b6/kq4B1/1P1RNP2/Kn2r1B1/4n1rB b - - 0 1 illegal: No possible last move, all moves rejected
bN2nrnK/P2q1b1Q/1Q1b3r/NP1R2P1/2B2QR1/q2r2bk/B7/2Bb4 b - - 0 1 legal: proof: b4 a5 h4 d5 a4 g5 hxg5 f5 e4 b6 exf5 d4 b5 d3 Qg4 Qd4 cxd3 Qd8 Qb4 axb4 d4 Bb7 d5 Kf7 a5 Bc8 a6 Ke8 Ra5 bxa5 Ke2 Kf7 Kd3 c5 Ke4 e5 f4 h5 d4 a4 g4 a3 d6 b3 a7 h4 d5 c4 f6 Kg6 f7 a2 d7 a1Q d6 b2 Nd2 c3 Nc4 c2 Nf3 b1B Nd4 h3 Rg1 h2 Nc6 Qc3 N4a5 Qa3 Bc4 Na6 Nb8 h1B+ Rg2 Qe7 d8R Nc7 d7 Ne8 Ba2 Rh6 f5+ Kg7 g6 Kf6 Kd5 e4 g7 e3 Bc4 Kg5 f6 Kh4 g5 e2 Kd4 e1B Rg4+ Kh3 Ba2 Qeb4+ Ke5 Bc5 f8Q Qd2 f7 Bg3+ Kf5 Bhb7 Qe7 Bcd6 f8Q Bd5 Qff6 Bf7 Qd4 Bb7 Qf4 Bf3 Qee4 Bd1 Bc4 Ngf6 g8B Ba2 Qe7 Bd5 Be6 Ng8 Qh7 Bg2 Na6 Rc8 Nb8 Ba8 Bed5 Ngf6 Ke6 Ng8+ Kf7 Bb3 Bd3 Rc3 B3c4 Rd3 Be6 Nef6 Kg7 Ne8+ Kh8 Ba2 Bb2 c1R Bf7 Rcc3 Bc1 Rc2 Bce6 Rc5 Bc4 Rf5 Bfe6 Bb1 Ba2 Rf8 Bec4 Bbc2 Rc8 Bb3 d8Q Qf2 Rc5 Qd4+ Re5 Qd5 Qb6 Qc6 Bf7 Be6 Rd5 Qd7 Bg6 Bf7 Bf5 Re3 Bd3 Rf3 Bdc4 Re3 Qf2 Rd3 Qf4
1N1b4/2Bn1P2/nr1Q2RK/q1B2N1P/7k/1Rnq4/r1qQR1bP/N3q1b1 b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Nf6 g4 Ng8 b4 h5 gxh5 a6 b6 Rh7 b5 Ra7 b7 Rh8 b6 Ra8 Bb5+ axb5 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Kg3 Kg5 d4+ e3 d6 c5 d5 e4 f3 c4 d7 b4 d6 c3 Qf1 c2 Nd2 e2 Ba3 c1Q Qg2 b3 Ra2 e3 Bc5 b2 Nb3 b1N Na1 Na6 b8N Rh6 b7 e1Q+ Qf2 g6 Ne2 Qc2 Nd4 e2 Nf5 Nc3 Rg1 Be7 Rb2 Qa5 d8B Qf1 d7 e1Q Bc7 Qfd3 d8Q Nf6 Qd6 Bd8 Rg2 Nd7 Rb3 Qee3 Qd2 Ra7 Re2 Ra8 Nc6 Ra7 b8R Bb7 Kh3 Ba8 R8b6 Bb7 Qd1 Qf2 Nb8 Qe1 Rc6 Ba8 Kg2 Bb7 f4+ Kg4 Qd2 g5 Nd4 Kh4 f5 g4 f6 g3 f7 Qc4 Kf3 g2 Kf4 g1B Rcb6 Bg2 Rc6 Q4d3 Nf5+ Kh3 Qe7 Ra8 Kg5 Ra7 Rg6 Ra8 Rg8 Rb6 Rg6 Ra7 Kh6 Ra8 Nd4 Ra7 Qe6+ Kh4 Qd6 Qaa2 Rg8 Nb4 Rf8 Ra3 Rh8 Na6 Rg8 Ra4 Rg6 Qa3 Qe5 Qb4 Qe6 Qa5 Qd6 Ra2 Nf5+
r1R5/Q1qB1bNQ/nb1k2R1/1n1nB1Kn/5n2/PN1n2PQ/1P1b3R/2r5 b - - 0 1 legal: proof: h4 d5 e4 b5 c4 g5 cxd5 gxh4 a3 f5 exf5 b4 Qf3 b3 Qg4 Nd7 Qd1 Nb8 d3 a5 Be3 a4 Nc3 Bg7 Na2 Qd7 Ba7 Be5 Qb1 Nh6 Nc1 Bg7 Qa2 bxa2 Nb3 Kf7 Rc1 Ng8 Rc4 Ke8 Rxa4 Bf8 Nc1 Qd8 Kd2 Kd7 Ke3 a1N Kf4 h5 f6 c5 d4 e5+ Kf5 e4 f4 h3 f7 c4 d6 h4 d5 h2 Ra6 e3 Bd4 c3 Nf3 h3 Nh4 c2 Nb3 c1B Bf6 e2 Kg5 e1N Nf5 Ne7 Ng7 Qc7 Rc6 Rh7 Bb5 Bd2 Ba4 Nd3 g3 Nc2 Bb5 Nd4 Ba4 Nb5 Ra6 Bb4 f5 Nf4 Rc6 Nh5 Ra6 Kd8 d7 Bc5 Rd6 Bb6 Re6 Na6 Rc6 Qb7 Rd6 Kc7 d8R Qb8 Re8 Be6 Rc8+ Kb7 Rdc6 Qc7 d6 Nd5 d7 Bb4 f8Q Bf7 Qe7 Bd2+ Qe3 Rh6 d8Q Rh8 Qd7 Re8 Rg1 h1N Rg2 Nf2 Rh2 Nd3 Rd6 N3f4 Qde6 Na7 Bd7 Nb5 Qd3 Bg6 Qf7 Re1 Qe3 Rf1 Qg8 Re1 Qh7 Rc1 Be7 Nd4 Rf2 h2 Rf6 h1N Rh2 Be8 Rg6 Nb5 Qd4 Nf2 f6 Bc5 f7 Ne2+ Qe3 Nd3 f8Q Bd4 Qf6 Bf7 Qf5 Nef4 Qh3 Ba7 Bf6 Bc5 Be6 Kc6 Bd7+ Kd6 Qf2 Bb6 Qe3 Bba5 Qa7 Bb6 Be5+
1K1k1r1b/nP4rR/RQ6/r1q2b2/3Pr2n/2N1B1P1/bN1B3N/bn2B1Q1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g3 gxf4 Ra4 h5 Ra5 h4 Bg2 h3 Ra1 hxg2 Ke2 c5 Kd3 a5 Kc4 e5 h4 e4 b4 f3 d4 e3 b6 a4 Kb5 f2 f6 e2 h5 e1N b7 c4 h6 f1B d6 a3 h7 a2 Nc3 Nh6 Bd2 Qe7 Kb6 Bf5 d7+ Kd8 b5 Ra5 f7 Bg7 f8B Nc6 b8B Nc2 Kb7 Na3 b6 Na7 Bbf4 Qc5 Nf3 g1R Bfe3 Nb1 Nh2 Be5 Bd6 Rf8 Kb8 Bh8 b7 Rg2 Be1 Re2 Bdf4 B1h3 B3d2 Re4 Bfe3 Be6 Qc1 Nf5 Qd1 Nh4 Qc1 Bf6 h8N Bhf5 Ng6 Bh8 Ne5 Bg8 Nd3 Bd5 Nb5 c3 Nb2 c2 Nc3 Bb3 B1f2 Bd5 Qg1 c1R Bfe1 Rf7 B1f2 Rf1 Bfe1 Rg7 Nf3 Ng6 Rh7 Nh4 Nh2 Na3 Rc1 a1B Rd1 Nb1 Rc1 Ke7 Rd1 Ba2 d8Q+ Ke6 Qb6+ Kd7 Rc1 Rf2 Ncd1 Ke8 Rc3 Rf3 Ra3 Rf1 Nc3 Ke7 Qb3 Kd8 Qb6+ Kd7 Nca4 Bg6 Nc4 Rb5 Qe6+ Kd8 Ncb2 Rf8 Nc3 Bf5 Ra6 Ra5 Qb6+
2RRr3/N2NBP1r/1QP1nn2/2Q3nP/b2r4/K2R3n/n1q1kqQ1/4B2r b - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 cxd4 f4 f5 gxf5 e6 e4 Ke7 e5 Ke8 Be2 Be7 Bg4 Bf6 exf6 hxg4 Kd2 Kf7 c4 a5 Kc2 d5 Kb3 g5 h4 e5 c5 e4 b6 a4+ Kb4 g3 h5 a3 b7 g4 b3 e3 Qe2 a2 Qd1 e2 Qd3 e1N Qb5 g2 Ba3 d3 Qa6 d4 Qc6 d2 Rh3 d1N Nc3 d3 Nb5 g3 Na7 d2 Rc1 a1R Nf3 Nd7 b8Q g1N Qbb6 g2 Bb2 Qf8 Bc3 Rh7 Qcb7 Rb1 Ka3 Qd6 b4 Qc7 b5 Nf8 Rc2 Bd7 Ba5 Ne6 Ne5+ Kf8 f7 Ke7 f8R Re8 Rd3 Nf6 Qd5 Bc6 Nd7 Nh3 Qf3 g1Q Qg2 Nf3 Bb4 Ra8 Rd8 Qf2 Qa5 Qc8 b6 Nc3 b7 d1R b8Q Na2 Be1 Nfg5 Qbb6 Ba4 Rc1 Rb4 Rc2 Rd4 Qab4 Ng4 f6+ Kf7 f5 Qc6 Rg8 Re8 Rcd2 Qe4 c6 Qee2 Q4c5 Ra1 Rd1 Qc2 Bc3 Rc1 R1d2 Rh1 Bb4 Re7 Rc8 Re8 Ba5 Kg8 f7+ Kg7 Rd1 Kh6 Be1 Nf6 f8B+ Rg7 Be7 Rh7 Qbb5 Nge4 Qh2 Kg5 Qg2+ Kf4 Qbb6 N4g5 Qf1 Nd5 f6 Kg4 f7 Nf6 Qg2+ Kf4 R3d2 Ke3 Rd3+ Ke2 Ne5 Rf4 Rdd8 Rc4 Nd7 Rd4 Rd3
1B1n2R1/4rNq1/P2NQ3/3Q1K1n/2r1n1P1/4P1k1/N1qb1RBq/2n1rrQ1 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 g4 axb4 h3 f5 Rh2 g5 Rh1 Be6 Qc2 Bf7 Qd1 Bh5 gxf5 g4 Qb3 g3 Qd1 Bg4 hxg4 Qe7 Qb3 Qd7 Qd1 Qd8 a4 Ke7 d4 Kf6 Kd2 Kg5 Kd3 c5 Ke4 h5 a5 b5 a6 h4 f6 h3 e3 Kh4 d6 h2 d5 b3 f7 b4 d7 b2 d6 b3 Qe2 f3 Ra2 c4 Qf2 c3 Qe2 c2 Qd1 g2 Nh3 g1Q Bc4 f2 Kf5 f1R+ Ke4 Rh7 Nc3 b1R Ng5 b2 Bd5 Qf6 d8Q Nc6 d7 Bb4 f8Q Kg3 Qf7 Rc8 Qe6 Re7 Nf7 Qg7 Nd6 Qf2 Bd2 c1N Be1 Rc7 Qa8 Nd8 Bb7 Nf6+ Ke5 Kh3 Bg2+ Kg3 Qad5 Nh5+ Ke4 Nf4 Kf5 Rc4 Bf3 Ra1 Bg2 b1N Rb2 Ba5 Na2 Nc3 Rb8 Ne4 Rg1 Nf7 Rg8 h1Q d8N Qh2 Bb4 Re1 Rf1 Qc2 Rf2 Nh5 Bc5 Bc3 Ba7 Bd2 Bb8 Rf1 Nc6 Nd8 Ne5 Re1 Nef7 Nb3 Qe2 Rad1 Qf1 Nc1 Qg1 Rf1 Qa5 Rde1 Qad5
2b2B1q/r3b2b/Q2PQN2/4P1r1/r1R5/q2P1B1R/2Q1bRNK/2qkr1r1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 h4 g5 a4 b5 axb5 gxh4 Na3 e5 Nb1 e4 d3 Nd7 e3 Ne5 fxe5 Ne7 Ra4 Nf5 Ra1 Nd4 exd4 Qd7 Rh3 Qd6 Rh1 Qd8 Kf2 Kd7 g4 Ke6 Kg2 Kd5 b4 h5 b6 a5 b5 f5 b7 c5 b8Q c3 b6 a4 b7 a3 g5 c4 g6 h3+ Kg3 h2 g7 h4+ Kg2 c2 g8R a2 Be3 c1Q Qe1 h3+ Kg3 c3 Bf2 c2 Nf3 e3 Rg7 e2 Rg5 Rh5 Rg4 Ra4 Nh4 Rg5 Bg1 Be7 Qf2 e1R Qa7 Qa3 b8Q c1Q Nd2 Qh8 Qab6 Ra7 Ng2 Ra4 Rb1 a1R Be2 Ra2 Rb2 f4+ Kf3 Ra7 Ne4 Ra4 Q8c7 Ra1 Qf1 Ra2 Kf2 f3 Kg3 f2 Bf3 Ra7 Qe2 f1B Qec2 Be2 Qa6 Ra1 Be3 Rg1 Qcb6 Re1 Rf1 h1R Rf2 Rhg1 Kh2 Ra2 Rb4 Ra1 Rc4 Ra2 Kg3 h2 Bd2 h1B Bb4 Ra1 Qh6 Ra2 Kh2 Ra1 Rg3 Ra2 Nh4 Bg2 Qhf6 Bgh3 Bd6 Bhf5 Rh3 Bh7 Qh6 Qc5 Ng2 Ra4 Qg6 Q5a3 Nf6+ Ke6 Qe8 Kf5 Nh4+ Kf4 d5+ Ke3 Qf7 Bd8 Bf8 Be7 d6 Rgf1 Qb1 Kd2 Qe6 Kd1 Ng2 Rg1 Qc2+
4nQ2/2n2qbB/Qn2P2N/3bB3/q1qQb1nR/bP6/K1P2k1q/NNR5 b - - 0 1 legal: proof: a4 b5 axb5 c5 d4 cxd4 f4 e5 g4 exf4 g5 f5 h4 a5 e4 Ra6 e5 Rf6 gxf6 g5 h5 Ne7 Ra3 Rg8 Re3 Rg6 hxg6 d5 Kd2 a4 g7 a3 g8Q a2 b6 a1Q b7 Kd7 e6+ Kd6 f7 Kc5 Reh3 h5 Ba6 d3 Kc3 d4+ Kb3 d2 Bf1 d3 Be2 Kd4 R1h2 g4 Re3 h4 Rg2 g3 Rf3 h3 Qf1 d1N Bd2 h2 Qh8+ Bg7 f8N h1B Rff2 f3 Qh6 f4 Nh7 Qh8 Bb4 Ke3 Qh4 d2 Na3 Na6 b8Q Nf5 Qc7 Nc3 Bd1 Na4 Qcc4 Nc7 Qf6 Nd6 Ne2 Bb7 Nc1 Nde8 Rg1 g2 Qa6 Nb6 Qf8 Be4 Be2 d1N Nf6 Qh2 Nb1 Qa5 Ba3 Qa4+ Ka2 Bd5+ Bc4 Be4 Rd2 f2 Bd3 f3 Nb3 Bd5 Bf5 Be4 Qfc4 f1Q Rd5 Nf2 Bh7 Ng4 Na1 f2 b3 Qe2 Rg5 f1Q Ng8 Qf7 Rc1 g1B Nh6 Kf2 Rh5 Bd5 Rh4 Bhe4 Qc3 Qec4 Kb2 Ke2 Bd6 Bc5 Be5 Ba3+ Ka2 Kf2 Qd4+
4Nn1K/4k2b/3r2NP/b7/3R1BPq/Qp3qnn/rrBP2Q1/Rb1N2R1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 g5 f3 g4 g3 h5 fxg4 h4 Qf3 hxg3 Qe2 Kd7 Qd1 Ke8 Ke2 b5 Kf3 e5 Ke4 c5 a4 g2 h4 c4 d6 b3 a5 b4 a6 c3 f6 c2 h5 b2 a7 b3 h6 Ne7 Nf3 g1N Bd3 Nd7 Qe2 Nh3 Nc3 b1B Qg2 Nf5 Ba3 c1R Nd1 Rc2 Rg1 Rb2 Bc2 Ng3+ Kd5 e4 Ke6 e3 Ne5 Be7 f7+ Kf8 Bc5 e2 Be3 e1Q Bg5 Qe2 Bf4 Nh5 Kf5 Ng3+ Kg6 Rg8+ Kh7 Rg6 Kh8 Qf3 Rf1 Ba6 Rh1 Bd3 Rg1 Nf6 d7 Bb4 Nf2 Ba5 Nd1 Ke7+ f8N Ne8 Nh7 Rd6 Nf6 Ng7+ Ne8 Bg6 Qe2 Bh7 Qg2 Rc8 a8Q Ne6 Qa7 Nf8 Qc5 Ra8 Qa3 Qb6 d8R Qb5 Nd3 Qh5 Ne5 Qh4 Qa2 Rg6 Rd4 Rd6 Qa4 Bc7 Qb4 Raa2 Qa3 Ba5 Ng6+
Qn6/KQR1R3/1P2r1q1/1B2kP1p/b1r3n1/N1P3RB/bqbBN3/1n4r1 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g5 h4 gxf4 g4 Bg7 g5 Bh6 g6 Bg5 hxg5 Qc7 Kf2 Qb6 Ke1 Qd8 Kf2 d5 b4 Kd7 b6 Kd6 g7 a5 b7 e5 g6 h5 c3 a4 b5 f3 b6 d3 Ke3 d2 Qc2 d1B Rh4 f2 Rd4 e4 Ra2 a3 Qb2 Bc2 Bc4 f1N+ Ke2 e3 Ba6 Qg5 Re4 d4 Bd2 Be6 Qa1 Rh6 Bb5 Nf6 g8R Ra4 g7 d3+ Kf3 Rc4 Ne2 Bf7 Re7 Ng4 Rc8 Bg8 Rcc7 Qg6 Rb2 a2 Na3 Be6 g8B Ke5 Bf7 Ba4 Bfe8 Bc2 Bec6 Ba4 Qb1 a1Q Qa2 Bc2 Rb1 Qb2 Qa1 Ng3 Rg1 Nf1 Rg3 Ba4 Nb1 Bc2 Qa8 Ba4 Na3 Bc2 Nd4 e2 Bd5 e1R Ne2 Nfe3 Be4 Rg1 Bec6 Nf1 Bd5 Nc6 b8Q Ba4 Qbb7 Nb8 Bc1 d2 Be4 d1B Bd2 Kf6 Bec6 Bf7 Be4 Bdc2 Bd3 Rc6 Ke4 Ba2 Kd4 Re6 Kc5 Ke5 Be4 Rh8 Bg2 Rd8 Bh3 Rc8 Bg5 Nd2 Bh6 Nb1 Bd2 Ba2b3 Kb4 Ba2+ Ka5 Nd7 Ka6 Nb8+ Ka7 Ba2b3 Rg7 Ba2 Rce7 Rc6 Rc7 Rc4 Rge7
N2qbk1n/PK1Q4/1P3Rp1/2QBNb1r/1R2n3/3Br1P1/n1qq2Q1/1r5N b - - 0 1 legal: proof: b4 a5 h4 f5 e4 d5 exf5 d4 a4 b6 h5 g6 b5 d3 h6 Bg7 hxg7 Be6 Ba3 Bd7 Bb4 Be6 cxd3 Bc8 d4 Nh6 d5 axb4 a5 b3 a6 Ng8 Qc2 Be6 Qc3 Bc8 Qa5 bxa5 Ke2 e5 Ke3 h5 Ke4 c5 d4 h4 f4 c4 b6 c3 g3 a4 a7 h3 d6 a3 Kd5 c2 f6 c1Q f5 a2 f7+ Kd7 f8N+ Ke8 f6 b2 d7+ Kf7 Nf3 e4 Nc3 b1R Nd1 h2 Ne6 e3 Nc7 e2 Nf2 e1N Bd3 Qf8 d8Q Nc2 Rd1 Nd7 Kc6 h1B d5 Qd2 d6 Nc5 d7 Nh6 Qe8+ Kg8 d8Q Nf7 Qd5 Ne4 Ne5 Rh5 Qed7 Qd8 Qc5 Bg2 Nh1 Nh8 Qf2 Bf3 Qg2 Rb8 Na8 Nb4+ Kb5 Bg4 Ka5 Bf5 f7+ Kh7 g8B+ Kg7 Kb5 Kf8 Ka5 Bb7 Kb5 Bc6+ Ka5 Rc1 Rb1 Ba4 Rb3 a1Q Rb2 Na2+ Ka6 Rb1 Rb4 Rc8 Kb7 Rcc1 Qe6 Qad4 Qd7 Qc2 Rd2 Re1 Rd1 Re3 Rd2 Kg7 Rd1 Kh6 f8Q+ Kg5 Be2 Qe8 Qc8 Qed8 Qfc5 Be8 Qd7 Kh6 Rd2 Qdc3 Rd6 Q3d2 Bf7 Kg7 Bd5+ Kf8 Bec4 Qe1 Bd3 Qed2 Rf6#
2Nb1RQ1/1K3b2/1Pr1r3/2R5/1n2BQB1/P2PN1r1/nn2pqkb/3Q1b1R b - - 0 1 illegal: No possible last move
1nq3nQ/4r2P/k4b1N/4p3/1KnbB3/1RR2N1b/QPP1Q1n1/2B1r1rR b - - 0 1 legal: proof: e4 c5 g4 h5 d4 cxd4 a4 b5 axb5 f5 exf5 a6 bxa6 hxg4 Kd2 g5 h4 d5 f4 Kd7 a7 Kc6 f6 Kb7 h5 e5 h6 d3 Kc3 d2 h7 g3 f7 g2 f5 d4+ Kc4 g4 f6 g3 Qg4 d1N Ra4 d3 Na3 d2 Qe2 Bg7 f8Q Ne3+ Kb4 d1N f7 Nc4 Nf3 g1R Bg2 Nde3 Nb5 Bf6 Nbd4 Bh3 Ra3 Qc8 Rb3 Ka6 Nf5 Re1 Qd8 Rg1 f8R Re1 Bf1 g2 Nh6 g1B Rf7 Ng2 Rc7 Bd4 Qf8 Ne7 Qg7 Re8 Qh8 Ng8 Rc5 Nf4 Bg2 Re7 Ng5 Nd7 Be4 Ng2 Nf3 Rb8+ Ka4 Rb7 a8Q+ Ra7 Qd5 Nb8 Kb4 Rg7 Rc3 Rae7 Rb5 Nh4 Rb7 Rgg1 Rb5 Na3 Qa2 Ng2 Ka4 Nc4 Rbb3 Ka7 Kb4+ Kb6 Ka4+ Ka6 Kb4+
2bRn3/1br1rP1R/5QK1/1BPqB2N/Nr6/nn2QP1Q/N1kpb3/4r3 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 exf5 c5 axb5 cxd4 b4 a5 h4 gxh4 Nh3 a4 Ng1 Bh6 Qf3 Bf4 Qe2 Bc7 Qd1 Ba5 bxa5 Bb7 Be2 Ba6 Bf1 Bc8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 c4 d5+ Kd3 h5 g4 e4+ Ke2 Ke5 b6 h3 g5 e3 Kf3 d3 f6 Kd4 Kf4 d2 a6 e2 b7 Kd3 a7 d4 g6 a3 Kg5 a2 g7 h4 c5 h2 Nc3 h3 Rb1 a1N Bb2 Nc2 Qc1 d1B Ba1 Rh7 Na2 Nc6 b8Q Na3 Qe5 Rb8 a8N Rb4 Qce3+ Kc2 Nb6 e1R Bb5 d3 Na4 d2 Ne2 Na5 Kg6 Nb3 Ng3 Be2 Nh5 Qd5 Q5f4 Qe6 Be5 Qd5 Rf1 h1R f7 h2 Ra1 Nf6 g8Q Rh8 Qh7 Ne8 Qf6 Rf8 Rg1 Rh8 Rg5 Rhf1 Rg4 h1B Rd4 Bg2 Qhh6 Rh1 Rd1 Rh4 Qh3 Re4 Q6e3 Bgf3 Bc7 Re7 Be5 Bfg4 f3 Bb7 Rb1 Bgc8 Rh4 Na1 Rb3 Rc7 Rd3 Nb3 Ng7 Rh5 Rdd4 Rf5 Rh7 Rf4 Nh5 Re4 Bh2 Ree7 Be5 Qc4 Rd6 Qd5 Rd8
NqQK1kN1/B1QnP2Q/6bN/8/1n3r1P/P1n1R3/n1r4p/R1r1bb1B b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 a5 h4 axb4 Qb3 h5 Qc2 g5 Qd1 Qd7 hxg5 h4 g3 h3 Ba3 Qg4 Bc1 Qh4 gxh4 Bh6 Ba3 Bg7 Bc1 Bf8 Kf2 c5 Kf3 f5 e4 b5 d4 b3 e5 c4 e6 b2 d6 b4 a3 c3 d5 b3 g6 h2 g7 c2 Ne2 Bb7 Ng3 Ra4 Nd2 b1Q Nc4 b2 Bg2 Nf6 g8N Nfd7 Re1 Nc6 Be3 c1N Qc2 Nb4 Ba7 Nca2 Re3 Bg7 Nb6 Kf8 Qe4 Bc3 Na8 Be1 Bh1 Ba6 Qc2 Bd3 Qc7 Qc1 Qc2 b1N Qc7 Nbc3 Qb7 Nb6 Qh7 Qb1 d7 Bc2 d6 Bd3 Kg2 f3+ Kh3 f4 Kg4 f2 Kg5 f1B Kf6 f3 Nf5 f2 Nfh6 Bg6 d8Q+ Be8 Qdc7 Bg6 Qb7 Qb2 Qhc7 Rh7 d7 Rf7+ Ke5 Rf4 Kd6 Ra5 Qe4 Rc5 d8Q+ Be8 Qg5 Nd7 Qh7 Bg6 Qgd8+ Be8 Qa5 Rg5 Kc7 Nc2 Qe5 Rg2 Qc8 Qb8+ Kd8 Ncb4 Nc7 Bg6 Ne8 Be2 Qd4 f1R Qb6 Bd2 Qa5 Rc1 Nc7 Be1 Na8 Bf1 Qc7 Rgc2 e7#
Qqn1r1n1/bNqn1Nk1/nQ1P4/R3P1R1/p1Q1B2b/8/1R4nP/K5Br b - - 0 1 legal: proof: b4 a5 g4 b5 f4 d5 a4 e5 axb5 exf4 c4 h5 cxd5 hxg4 b6 Qe7 b5 Ba6 bxa6 Qd8 e4 f5 d4 Kf7 Kd2 g5 Kc2 c5 Kb2 g3 b7 c4 d6 g4 a7 f3 d7 c3+ Ka2 g2 d5 f4 d6 c2 Kb2 g3 Ne2 g1N Nec3 f2 Na4 f3 Qd2 g2 Ra2 Na6 b8Q Kg7 Qd5 Be7 Qc4 Bh4 Bd2 c1Q+ Ka1 Qf8 Qb7 Qb8 Be2 f1N Qb6 f2 d8R Ng3 Rb2 f1N Bf3 Nf5 Be3 Nfe7 Nc5 Nc8 Nb7 a4 Bc5 Ne3 Rf8 Rh5 Rf5 Rg5 Re5 Qc2 Na3 Rf5 Bd4 Rg5 Ra5+ Re5 Bd1 Nf3 Rg1 Qc3 Bc5 Re8 Bc2 Ne5 Bd3 Nd7 Bb1 Qc7 Bd3 Rb8 a8Q Qb4 e5 Ndf6 Nd8 Nd7 Be4 Qb3 Nf7 Qb5 Rf1 g1B Rf5 Ng2 Rh5 Be3 Rf5 Bf4 Bg1 Be3 Nc2 Bc5 Nb4 Bd4 Nc6 Qb3 Qbb4 Ba7 Ncd8 Rb5 Nb7 Rd5 Bb1 Rd1 Qb6 Qb5 Bc5 Rh1 Bg1 Qbc5 Bd3 Qb8 Be4 Qcc7 Rg5+
1rB1B1R1/n1rP2Pr/n3kp2/5Nr1/2R1QQN1/5Qr1/q3bK1P/1q1B3b b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 d5 d4 cxd4 e3 d3 Nd2 d4 Nb1 d2+ Kf2 d3 g4 h6 b3 Bf5 g6 Rh7 g5 Bh3 Bb2 Be6 Be5 Bg7 Bf4 Bb2 g7 Bc8 g6 Rh8 Bg5 Bd4 exd4 hxg5 c4 Kd7 b4 a5 b6 e5 b5 a4 c5 g4 b7 e4 d5 a3 d6 f6 b6 a2 c6+ Ke6 c7 Rh7 d7 Ne7 Bh3 Nec6 Na3 Qg8 Nc4 Na6 b8Q Na7 Ne2 Bb7 Rc1 a1Q c8B Qb1 Qf4 Rb8 Ng3 Bd5 Qe1 d1B b7 d2 Nf5 Be2 Rg1 d1R Nce3 Rd3 Rc4 Ra3 Qf3 g3+ Kg2 Qf7 Ng4 e3 g8B Ra5 Qb4 Rc5 Qa4 Rc7 Qc2 Bd3 Qa4 e2 Qc2 e1R Qa4 Ra8 b8Q Re5 Qc2 Be2 Qce4 Bc6 Qb4 Rb8 Qd2 Bd1 Qdf4 Bb7 Kf1 g2+ Kf2 Bc6 g7 Bb7 Re1 g1R Bf1 Rg3 Be2 Ba4 Bd1 Bb5 Rc1 Be2 Rc4 Rh5 Bh7 Qg8 Bg6 Rh7 Be8 Qf7 Qd4 Ra5 Qa3 Bh1 Qaf3 Qf8 Qdd3 Qa3 Qdd4 Re5 Qde4 Qaa2 Qee3 Rb3 Bg6 Rb8 Nfh6 Ke7 Qd3 Rg5 Nf5+ Kd8 Qc2 Bf1 Re5 Be2 Qce4 Rc5 Qd2 Kc7 Re8 Rc6 Rg8 Rc5 Nd4 Kd6 Be8 Rc7 Qdf4+ Re5 Qa8 Ke7 Qab7 Rg5 Nf5+ Ke6 Qbe4+
1Rb1b1qB/BNk4Q/3N4/1Rr4P/q2nb1R1/r1r1P2K/QPnp3N/1b6 b - - 0 1 legal: proof: d4 c5 a4 cxd4 g4 h5 gxh5 b5 axb5 e5 Bh3 Be7 Be6 Bg5 Bc4 Be3 fxe3 e4 Bd3 exd3 e4 Nf6 e3 Ng8 Kf1 g5 Kg2 f5 h4 d5 c4 Kd7 c5 a5 b6 a4 b7 d2 e5 g4 h6 a3 e6+ Kc7 c6 d3 h5 a2 h7 d4 e7 g3 e8Q f4 Qe6 f3+ Kh3 f2 Qa4 f1B+ Kg4 d1B+ Ne2 g2 Qb3 d2 Qd3 Bc2 Ng1 d1B+ Kh3 Ne7 Bd2 Bf3 Na3 Be4 Nc4 Nd5 Rh2 Bb1 Bc3 Qg8 Na5 Nb4 Nf3 g1R+ Rg2 Nc2 Nh2 Be2 Rg3 Rc1 Rg4 B2f3 Qec4 Bg6 Qe4 d3 Bd4 d2 Ba7 Be8 Qf5 Be4 Qcd5 Nd7 b8R Nc5 Nb7 Ne6 Qc4 Ned4 Qa4 Qb3 Qc4 Rg8 h8B Rg5 Qa4 Qf7 Qh7 Rc5 Qc4 Nb4 Qd5 R1c3 Qb3 Bbc2 Rf1 a1Q Rf5 Qa4 Qa2 Bb1 Rd5 Nbc2 Re5 R5c4 Rb5 Rc5 Nd8 Kd6 c7 Qg8 Nb7+ Kc6 Bg7 Bcd7 c8N Kc7 Ncd6 Bc8 Qc4 Ra3 Qa2 Rcc3 Bc5 Ra6 Ba7 Rac6 Rb4 R6c4 Rb5 Rc5 Bh8+
1B6/1R1q4/2R1RN2/k1nPb3/b1qQ1P2/4B3/NKQPp1nr/Nb1q2qr b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 d5 cxd5 f4 e3 Nd7 exf4 Nb8 f3 h5 Ra4 g5 Ra5 g4 Ra1 gxf3 g4 Kf7 g5 Ke8 Bh3 Nd7 Be6 Nb8 Bg4 hxg4 h4 Kd7 b4 c5 h5 Kc7 h6 Kb6 h7 e5 g6 a5 g7 a4 Rh4 f2+ Ke2 f1B+ Ke3 a3 Ke4 a2 Ba3 c4 Bb2 c3 Ne2 c2 Kd3 c1Q Qc2 e4+ Kc3 e3 Na3 g3 Rh2 g2 Rh6+ Bd6 Re6 Nh6 g8N g1Q Nf6 Ng4 Kb3 Bh3 Nc3 e2 Rb1 a1Q Na2 Qcd1 Rc1 Bd7 Be5 Qc5 Bd4 Na6 Bg1 Qad4 Be3 Qdc4+ Kb2 Bg2 Nh5 Be4 Nf6 Kb7 b6 Ba4 b5 Qd7 Qc3 Bf5 Nc2 Be5 Na1 Bb1 Qd4 Rag8 Rc3 Rg6 Qe4 Rh6 Qc2 Rg8 h8Q Rh1 Qg7 Q5d4 Qh8 Rg6 Qg7 Nc5 Qh8 Rgh6 Qg7 Kc8 b7+ Kc7 b8R R6h4 Rbb6 R4h2 Rbc6+ Kb7 b6 Ka6 b7+ Kb5 b8B Ka5 Bg1 Qe3 Rc7 Qg3 Rb7 Ne3 Qh8 Ng2 Be3 Qg4 Nh7 Bd6 Qd4 Be5 Nf6 Qg3 Rcb3 Qf2 R3b6 Qfg1 Rbc6
bb6/k2b1RN1/4rb1N/B2P2n1/R1q2P2/Pn1rQBQ1/4QpK1/qn2R3 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 f5 f3 f4 e3 e5 exf4 e4 Ba3 exf3 Bb2 Be6 Bc1 Bc8 Kf2 Kd7 d4 c5 h4 Kc7 h6 Kb6 d6 g5 d7 g4 h7 g3+ Ke1 b3 a3 b2 h5 g2 Kf2 c4 h6 c3 Bb5 c2 Kg3 f2 Bf1 Ra6 Nf3 g1Q+ Bg2 Bd6 Qe2 Qc7 d8Q Bd7 Ne5 Nf6 Qe8 Nc6 Nd2 b1N Ndc4+ Ka7 Ng4 b5 Nce3 b4 Bd2 c1B Nf5 b3 Q8e3 b2 Ng7 Rd8 h8R Na5 h7 Qc4 Nh6 Nb3 Ba5 Bb8 Rf8 Re6 h8Q Nh7 Rf7 Ng5 Rh5 Bd2 Qg8 Qh1 Bb7 Bb4 Bc6 Be7 Bf3 Qd1 Kg2 Bf6 Q2d3 Nc3 Qc2 b1B Qce2 Be4 Rc1 Bd5 Rh1 Bb7 Re1 Nb1 Rc3 Ba8 Rc2 Qc6 Rc4 Qc1 Ra4 Q6c4 Qh7 Qb2 Qhd3 Qa1 Qg6 Nh7 Qg4 Ng5 Qg3 Bc6 Qc1 Ba8 Rf8 Bc8 Qce3 Rdd6 Rf7+ Bd7 Q3d3 Re3 d5 Rde6 Qdd2 Rd3 Qde3+
2qR3r/6Qq/7n/2bP2B1/1n1PQNnb/pB2Qb1K/3rPB2/2bR1Nk1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 Kd6 h4 Kc5 b4+ Kd4 h5 f5 b6 g5 b7 c5 b5 a5 h6 f3+ Kg3 c4 b6 a4 d3 c3 h7 c2 Nd2 Ke3 d4 f4+ Kh2 Kf2 Nb3 Nc6 b8Q Nh6 b7 Nb4 Na5 Bc5 Ba3 c1B Bb2 a3 Qe5 Rb8 Qf5 g3+ Kh3 g2 Nb3 g4+ Kh2 g3+ Kh3 Bd7 Nd2 Qc8 Qb3 Be8 Rb1 Bh5 Bc3 Ke1 Qc2 f2 Qd3 f3 Qe3 Bg4+ Kh4 Bh5 Nh3 g1B Bg2 f1N Qfe4 f2 Nf4 Bf3 Bh3 g2 Bf5 Bh2 Kh3 g1Q Rb3 Qgg8 Rg1 Ra8 b8B Bg3 Be5 Ra6 Bf6 Rb6 Bg5 Bh4 Rb1 Qg7 Rg2 Nh2 Nf1+ Kd1 Bd7 N2g4 Be1 Rb8 Bb5 Qg6 Bc4 Rb7 Ng3 f1Q Ba2 Qf2 Nf1 Rf8 h8Q Qh7 Qg7 Rh8 Rg1 Rb6 Rb2 Rb5 Rc2 Rb7 Bb3 Rb8 Bc3 Rb7 Rd2+ Ke1 Bd8 Nc6 Ba2 Nf6+ Qg4 Rb2 Bb3 Nb4 Qd7 Ra2 Rg8 Nfg4 Bg5 Qg1 Rd8 Rc2 Qg7 Rb2 Q3d3 Kf2 Rd1 Rc2 Ng3 Qe1 Nf1 Kg1 Qde3+ Qf2 Be1 Rd2 Bxf2+
1k4NR/r2Bn3/r4rQn/qNKPrR2/2PpbB2/1BQb4/1q5P/2n3Q1 b - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 b5 axb5 hxg4 Nh3 d5 Qa4 c5 Qb4 d4 Qa5 Qd5 cxd5 c4 Qa4 c3 Qd1 c2 Ng1 Bd6 Nf3 Bb4 Ng1 Bc3 dxc3 Ba6 Bd2 Bb7 Bc1 Bc8 Kf2 Kd7 b4 Kc7 e4 a5 e5 g5 c4 f5 e6 g3+ Kf3 g2 e7 a4 e8B a3 Nc3 a2 Nge2 g1Q Bd7 Ra6 Ne4 Rh7 N2c3 Nc6 b6+ Kb8 b7 Nce7 b5 Nh6 Be2 Qe1 Rf1 Qd2 Rb1 a1Q Nf6 Qb2 Ng8 Qe1 Be3 c1N Rf2 Qed2 Qg1 Qe1 Bd1 g4+ Kg2 g3 Kf3 g2 Bb3 Re6 Ra1 Re5 Ra6 Rg7 Rg6 Rf7 Rg4 Rf6 Rh4 Ra6 Rh3 Ng4 Rh8 Nh6 Qh1 g1R Bd2 Rgg6 Qg1 Ra7 Be3 Kc7 Bd2 Rga6 b8Q+ Kd8 Qa8 Kc7 Qc6+ Kb8 Be3 Qed2 b6 Qe1 Nb5 Qa5 Be8 Be6 b7 Bf7 Bd7 Bg6 Qc5 Bh7 Qb4 Bg6 Qc3 Bh7 Kg2 f3+ Kg3 Bg6 Rf1 f2 Bg5 f4+ Kf3 Rf5 Ke4 f3 Bd2 Rff6+ Ke5 Bc2 Bf4 Be4 Bc6 Rf5+ Kd6 Rg5 Kc5+ Re5 Rd1 f1R Bd7 f2 Rd3 Nc8 Rh3 Ne7 Rh5 Rd1 Rf5 f1B Qg6 Bfd3 Rf7 Rb6 Ba4 Qe2 Bg5 Rf1 Rf6 Rff5 Bf4 Rba6 Rf7 Na2 Bc2 Qa4 Na3 Kc7 Rf8 Rff6 Bd1 Rfd6 Rf5 Qf2 Qe1 Rf6 Qeg1 Qb2 Bb3 Nc8 Bc2 Nc1 b8Q+ Kd8 Qb3 Kc7 Qb4 Ne7 Nb5+ Kb8 Bb3 Qa5 Qc3
2r5/4B1K1/b1bBbQ1r/1PR1N3/k1P4P/1nR3n1/NRpN1q1Q/2b2qq1 b - - 0 1 legal: proof: b4 b5 g4 c5 f4 h5 gxh5 e5 a4 exf4 axb5 d5 Bg2 d4 Bd5 d3 Bb3 Qd5 bxc5 Qd4 c3 Qd8 Bc2 dxc2 Kf2 Kd7 Kf3 g5 Ke4 a5 Kf5 g4 e4 a4 d4 f3 h4 f2 c4 f1B d5 a3 h6 a2 e5 g3 e6+ Kc7 h7 g2 c6 Kb6 c7 Ka5 d6 Nf6 d7 Na6 e7 Nc5 e8N Nfe4 Qe2 Nb3 Nd6 Bh6 Ba3 Qf8 Nd2 Ng3+ Kf6 Ka4 d8B Ba6 Rb1 a1Q+ Rb2 Rc8 Ngf3 g1Q Be7 Bh3 Ne5 Be6 Rh3 Qaf1+ Qf2 Be3 N6e4 Bf4 Qh2 Qff2 Ndf3 Bc1 Bad6 Qff1 Nc6 Qff2 Nb4 Qff1 Nd2 Qff2 Kg5 f5 Kg6 f4 Ne5 f3 Na2 Qf4 Kg7 Qff1 Bc5 f2 Bb4 Qe1 Bbd6 f1B Bd8 Bg2 B8e7 Ne4 Rc3 Ng3 Bd8 Bc6 B8e7 Rb8 c8R Qff1 Rc7 Qef2 Rc8 Rb6 Rc7 Rc8 h8Q Rbb8 Qh6 Rh8 Qf6 Rh6 Qg5 Rc8 Qf6 Bg2 Rc5 Be4 Qf8 Bc6 Qf6
3NRb2/1n1r4/1n1bPR1q/2B1p3/4rqPQ/2B2P2/QKN1q1kN/r2q2B1 b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 f5 exf5 c6 b6 Bg7 Ra6 Bh6 Ra1 Bf8 b4 e5 d4 d6 d5 Ke7 b5 Kf7 b7 Be6 dxe6+ Ke7 b6 Ke8 Bb5 cxb5 Kd2 Ke7 Kc3 Kf6 g4 a5 f3 h5 Rh2 d5 Bf4 b4+ Kb3 h3 c4 a4+ Ka2 a3 c5 h4 c6 d4 c7 d3 c8Q d2 Bh6 Ra4 Kb3 a2 Qc5 Na6 b8N Qd4 b7 Rh7 Qf1 d1Q+ Qc2 Qf4 Qe1 Rd7 Nc6 Nc5+ Kb2 b3 b8B Qe2 Qa5 Re4 Qad2 Ne7 Ba7 Nd5 Na3 Nb6 Nd8 Nb7 Qe1 Bd6 Bf8 Kg5 Rh1 h2 f6 h3 f7 Qf5 Rb1 Kf4 Qh4 Ke3 Be7 Qf4 f8B a1B+ Kc1 Rd4 Qa2 Bc3 Bh6 Bd2+ Kb2 Re4 Rc1 B2b4+ Rc2 Qc4 Ne2 Qa6 Ng3 Qe2 Bef8 Kf2 Nf1+ Kg2 Rd2 Bbc5 Nc2 Bb4 Rd4 Bbc5 Rc4 Bb4 Rc8 Bbc5 Kc3 b2 Be7 b1Q Rb8 Qg3 Bd2 Qbd1 Kb2 Qf4 Bc3 Bb4 Bg5 Bf8 Be7 Bc5 Nc6 Bd6 Re8 Bb8 Bc5 Bbd6 Ng3 Qed2 Nd8 Q2e2 Re1 h1Q Nf1 h2 Bg1 Qdd2 Rd1 Qde3 Rd4 Qh6 Rb4 Qef4 Bc5 Qg1 Ra4 h1R Nh2 Qgd1 Bg1 Nc8 Bac5 Nb6 Rd4 Qfg5 Qb1 Qdd2 Rb4 Re3 Rf4 Re4 Rf6 Qgf4 Bgf2 Rd1 Qa2 Ra1 Bfe3 Qdd1 Bg1
1q4kb/n1r2R2/r2PBpRK/4r3/5n2/PBQ2bQB/1qN1P2n/2rR3N b - - 0 1 illegal: No possible last move, all moves rejected
2r3N1/brRqB2b/K1P1BQ1b/4Pq1Q/k3bBn1/4RP2/N1Q3pr/4n3 b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 b5 a4 f5 axb5 c5 Ra6 h5 gxh5 f4 Rf6 c4 Qd3 cxd3 Rxf4 Nc6 Rf7 Nb8 Kd2 d5 e4 g5 c4 a5 h4 a4 c5 a3 b6 g4 f3 g3 e5 a2 b7 a1B b5 g2 c6 Bf5 h6 Nf6 h5 Qc8 h7 Ng4 h6 Na6 b8B Nb4 b6 Kd8 b7 Be4 Rc7 Qf5 Nh3 Nc2 Nf4 Ne1 Nh5 Bg7 Ba7 Rc8 b8Q Bb2 Nc3 Ba3 Rh4 Bc5 Qb2 Bb6 Bb8 Ba7 Qc2 Bf8 Kd1 d2 Ke2 d1R Bf4 Rb1 Nf6 Rb7 Ng8 d3+ Kd2 Bg7 Na2 Bf8 Kc3 d2 Be2 d4+ Kc4 d1B Rh1 d3 Rf1 Bb6 Kb5 d2 Bc4 Ba7+ Ka6 Be2 Rf2 B2d3 Re2 d1Q Re3 Qd2 Rf7 Bg7 Bd6 Qd1 Be7+ Kc7 Qb2 Bb1 Be6 Qd4 Qc2 Qd7 Nf6 Rhg8 h8Q Rgd8 h7 Bh6 Qg7 Rf8 h8Q Rg8 Qhh7 Rh8 Qhg6 Rh7 Ka5 Rhh8 Qh5 Rh7 Ka4 Kb6 Ng8 Ka6 Qf6 Rh8 Ka3 Kb5 Kb3 Ka5+ Kc4 Qd8 Bc5 Qg5 Qc3+ Ka4 Bg3 Bec2 Rc7 Qd7 Bf4 Bg7 Qe8 Rh2 Qh5 Bh7 Be7 Qf5 Qc1 Be4 Qc3 Bb8 Qc1 Bh6 Kc5 Ra7 Kb6 Rb7+ Ka6 Ba7 Qc2+
1K4Rk/1QQNn3/1Pbrq3/1N1Brp2/2q2RB1/1P5P/n4nB1/2r1bR1r b - - 0 1 legal: proof: c4 e5 a4 h5 b3 b5 axb5 d5 cxd5 h4 Bb2 e4 Qc2 e3 Bf6 exf2+ Kd1 gxf6 Qg6 f5 Qh7 f4 Qxh4 Ba3 Qh7 Bf8 Kc2 a5 Kd3 c5 Ke4 f5+ Ke5 c4 g4 a4 d4 a3 e4 c3 b6 a2 d6 f3 g5 c2 h3 c1Q d5 Be7 g6 Kf8 g7+ Kf7 d7 Bc5 d6 Bb4 Na3 Bb7 Bg2 f1N Nb5 f2 Nf3 Nd2 Rf1 Qdc8 d8Q Ra5 d7 Q1c4 Qc7 Bc6 d8R+ Ne7 Rg8 Na6 Rac1 Bc3+ Kd6 a1R e5 Nb4 e6+ Kf6 Rcd1 Na2 Ne5 Rc1 Rde1 Qe8 Re4 Qf7 Qb7 Qg6 Rg4 Ne4+ Kc7 Be1 Rf4 Qh6 Kb8 Qg6 Rc8 Rd8 g8B Rd6 Bf7 Qg8 Bh5 Qg6 Rg8 Qf7 Bg4 Qg6 Rg1 f1R Rh1 Nf2 Nd7+ Kg5 Qg7 Rg1 Qc3 Kh6 Qc2 Kh7 Bd5 Rg3 Rf1 Rg1 Qc3 Rh1 Qg3 Nc8 e7 Qe6 e8B Ne7 Bf7 Qh6 Bg2 Qhe6 Nc3 Re5 Nb5 Qf6 Bfd5 Qg6 Qc3 Qe6 Qa5 Ra1 Qaa7 Rc1 Rd8 Kg7 Qc7 Kh7 Qab7 Kg7 Rg8+ Kh7 Rg6 Kh8 Rg8+
r4b2/R3BP2/3P1qn1/K1R4N/RQBk1n2/r1Q2P2/2Qq1qNp/1r1b1r2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 d4 Kf7 Kd2 Kf6 g4 e5 d6 c5 b6 h5 d5 b3 Kc3 e4 f3 Ke5 d7 b2 f6 h3 d6 h2 g5 e3 g6 e2 b7 e1Q+ Nd2 b1R g7 h4 Qc2 h3 Ra4 c4 Ne2 Qf2 Nf4 Nc6 b8Q Nge7 g8Q Ba6 Ne4 Nb4 Ng3 Nd3 Ng2 Nf4 Qb4 Neg6 Nh5 Rh7 Rg1 h1R f7 Qf6 d8R h2 Rd7 Rh8 Ra7 Bb5 Qbb3 Kd5+ Kb4 Kd4 Qh7 c3 Bc4 Bd7 Re1 Rf1 Ka5 Bf5 Qcb2 Bc2 Re5 Bd1 Rc5 Rg8 Q2a3 c2 Qab4 Rh8 Bd2 c1Q Be1 Qc3 Bd2 Qce3 Be1 Qfd2 Bh4 Qef2 Bg5 Ne5 Qhc2 Neg6 Ng7 Rh5 Bh4 Re5 Nh5 Re3 Bg5 Qe5 Be7 Qf6 Qba2 Ra3 Qcb3 Rh1 Qac2 Rf1 Q3c3+
3rB3/2b5/R4PKQ/rP2B3/1rQ1r3/PNp2k2/b2nbQNb/1Rnq3B b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a5 b5 Ra6 Qg4 Ra7 Qb4 Ra8 Nc3 axb4 Na4 Qd7 Nc5 Qd6 Nxb7 Qd8 Ke2 Kd7 Kf3 c5 Ke4 e5 g4 h5 d4 b3 f4 c4 a3 b2 g5 b1B+ Bd3 c3 g6 h3 g7 h4 f6 h2 Kf5 h3 d6 e4 d5 e3 f7 e2 Na5 e1B Ne2 Ba2 Be3 Nc6 Rb1 Nd4+ Kg6 Bg3 f5 Nf6 g8B Ne4 Nf4 Nb3 Bd4 Ned2 Be5 Nc1 Nb3 Ra5 Be4 Bg7 Rd1 h1R f8Q h2 Bf7 Re1 Bh1 Re4 Ng2 Bh6 f6 Bhf4 Re1 Rb4 Re4 Bb7 Rc4 Bc6 Qh6 Re8 Bd4 Re4 Be5 Ba8 Rc6 Bb7 Ra6 Ba8 Ne3 Bb7 Bf3 h1R Ng2 Bh2 Be8+ Kc8 Qf8 Rd1 Qh6 Ba8 d7+ Kb7 Ra7+ Kb6 d6 Bd5 Ra8 Bc4 Ra7 Be2 Ra8 Qc7 d8Q Bfg3 Qd7 Qd8 Qg4 Bf4 d7 Bfg3 Nd4 Kc5 Ra6 Kd5 Qgh4 Bf4 Qf2 Bfg3 Nb3 Bf4 Bd4 Bc7 Be5 Nf1 Nc5 Kc4 Nb3 Kd3 Ne3 Rd2 Bh1 Rd1 Qe1 Rd2 Ng2 Rd1 Nf4+ Ke3 Ng2+ Kf3 Bf7 Qf8 d8Q Qd6 Qg8 Qd4 Be8 Qg1 Qeh4 Rd8 Qe6 Nd2 Qc4 Qd1 Qf2+
nN2Knr1/1r2P1R1/1kBB1Qr1/2NB2P1/4RQbb/b1r5/1Pqp4/3Q2b1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 h4 f5 g4 g5 Ra5 fxg4 Ra1 g3 Ra3 g4 Ra1 Qg5 hxg5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 Kd8 Kd3 Kc7 Ke4 a5 Kf5 d5+ e6 h5 Kg6 a4 Kf7 h4 c4 d3 e4 h3 e7 h2 e8B g2 c5 g3 c6 a3 e5 d2 e6 a2 Bc4 d4 Bd3 Rh6 Be2 d3 Nf3 g1B Ne5 g2 Bf3 Kb6 c7 Rg6 Bd5 Ne7 Nc3 Bf2 Ne4 g1B Bec6 Nd7 Ke8 Bh4 Nc5 Ra7 Rb1 Rb7 Ra1 Rg8 Rb1 Ng6 Ra1 Bd4 Re1 h1R Re2 Bg1 Re4 Ka5 b6 Rh3 Qf3 d1Q Bf4 Qa4 Qd1 d2 Rc1 a1R Rc2 Ra7 b7 Nb6 b8Q Rb7 Ned7 Na8 Bd6 Rd3 Rcc4 Qc2 Rc3 Rg3 Rf3 Ra4 Rf7 Rc3 Re7 Rab4 Rg7 R4b6 Qf3 Ra7 Qf6 Rba6 Qb3 Rb7 Nb8 Rab6 Qc4 Ra6 Qcf1 Kb6 Qd1 Be7+ Kf7 Bd7 c8Q Nf8 Qe8 Bc8 Qd7 Be3 Ke8 Bg1 Bh2 Bd6 Qdf7 Be7 Be5 Bd6 e7 Bg4 Nd3 Ba3 Bd6 Ra4 Nc5 Rd4 Re2 Re4 Qf4 Re6 Re4 Rg6 Q7f6
K2B2r1/8/2R1Rqr1/1QnN2b1/P1pP2B1/qP2QNqq/k2Q2r1/4q1bN b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 gxh4 f5 a4 f6 exf6 b3 f5 Ba3 f4 Bb2 Bc5 Bc1 Bf8 Rh3 b5 Rh2 b4 Rh1 Nc6 Kf2 Na5 Ke1 Bd7 Nf3 a3 Ng1 Ba4 bxa4 b3 Rh2 b2 Rh1 Nb3 axb3 Qd7 Kf2 Qc8 Ke1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d3 f5+ Ke5 c5 e4 h5 g5 a2 g6 f3 d6 c4 Kd5 h3 Kc6 h2 Kb7 f2 d7 f4 g7 h4 e5 h3 e6 f3 e7 Qb8+ Kc6 Qg3 Kb7 Ra6 d8Q Nf6 e8N Bc5 g8Q Ne4 Be2 f1R Qb8 f2 Qf7 Rg6 Bh6 Rhg8 Nc3 Ka3 Qff4 b1Q Ka8 Qb2 Nf3 Rg1 Nc7 f1Q Bg5 Rg2 Bd8 Bg1 Qe3 Nc5 N7d5 Qff2 Rb1 a1B Ne4 Ka2 Qb5 Qa3 Qdd2+ Bb2 d4 Qf1 Qdc3 Bc1 Nf2 Bd2 Re1 Bc1 Qh6 Bf4 Bd1 Bg5 Re6 Qe1 Rc6 Qee5 Qe3 Qf6 Nd3 Bf2 Re1 h1Q Be2 h2 Bd1 Qf1 Be2 Bg1 Nf2 h1Q Bd1 Qh5 Nh1 Qhh3 Qd2+ Kb1 Ree6 Qfe1 Be2 Bh4 Qhe3 Bg5 Nh4 Ka1 Bg4 Kb1 Nf3 Ka1 Qc1+ Ka2 Qcd2+
1K2nqNB/3Rqnnn/3P3Q/5qr1/N1n4p/4PQP1/1Qr2R2/3kb1NB b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 h4 gxh4 b6 a5 b3 a4 Rh2 a3 Rh3 Bd7 Rh1 Ba4 bxa4 Bh6 Ra2 Bg7 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 b7 c5 a5 h5 a6 h3 d6 f3 a7 f4 d5 h2 d7 a2 Bb2 f2 Ke6 h4 Bd4 f3 Qe1 Kb3 e3 Kc2 Nc3 c4 Bb6 Nf6 Nge2 Ne8 Rb1 a1N Ng1 Bb4 d6 Nb3 Ne4 c3 Rd1 Na5 Nf6 Nc4 Rd5 Rh5 Re5 Rg5 Ng8 Qe7+ Kd5 Ba5 d8Q Nd7 Kc6 Nf8 b8Q Nh7 Qe2+ Kc1 Rf5 c2 Bd4 Be1 Qb7 Rb8 a8N Rc8+ Qdc7 Ne5+ Kb6 Nf7 Ka7 Qf8 Qeb5 Kd1 Bh8 c1Q Nb6 Qc3 Qcc4 Qcg7 Qe6 Rc2 Qb2 Qf6 Bc4 f1Q Na4 f2 Kb8 Q6e7 Qh6 Qd3 Rf3 f1N Rf2 Nd2 Ba6 Nc4 Qf3+ Re2 Bb7 Qd5 Nh3 Qf5 Rhf1 h1N Ng1 Ng3 Bd5 Nh5 g3 Qh3 Qg4 Nhg7 Bh1 Nfe5 Qe4 Rc2 Rf7 Qf5 Rf2 Qef6 Rb7 Nf7 Rd7 Q6e7 Qf3+
2k2rR1/3Pbr1P/1p1q3B/r3R2B/nQN4Q/n4r1P/N7/KBn1q1Qr b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 e5 f4 g5 c4 d5 Kc2 Kd7 Kb2 g4 a4 g3 h6 b6 h3 b3 a5 d3 h7 d4 a6 e4 a7 g2 c5 e3 f6 e2 f5 e1Q f7 d2 f6 d3 Ra5 Na6 Qc2 d1R Be2 d2 Nc3 Be7 f8Q Nh6 f7 Ng4 Qg7 Ne5 f8Q Nd3+ Ka1 Rg8 Qff6 Rf8 Nf3 g1R Qb1 Rf1 Na2 Qc7 Qg8 Qd6 Qh4 Kc7 Rg1 Bd7 Qgg4 Kc8 Ne5 R1f3 Qb4 R8f7 Rg8+ Rf8 c6 Nac5 Nc4 Na4 Re5 Rf7 Bh5 Rf3 Bb2 Nc1 Qg6 Rf7 Qg1 Rf3 Bd4 Rf7 Be3 b2+ Kb1 Qe2 Bh6 Rdf1 Qa5 d1R Qb4 Rb8 a8B R1f3 Qb3 Qe1 Qb4 Kc7 Bb7 Ra8 Bc8 Ra5 Ba6 Kb8 Ne3 Kc7 Bd3 Kd8 Nc4 Kc8 Kc2 b1N Bdg6 Nac3 Kb2 Na4+ Ka1 Na3 Bb1 Qf2 Qgg4 Rh1 Qg1 Qe1 cxd7+
6k1/PR3r2/QN2Nb2/Q1N1nPp1/RB1B1n2/qb1qb3/b2RP1q1/K5b1 b - - 0 1 legal: proof: f4 b5 b4 d5 c4 a5 cxd5 axb4 g3 h5 Bh3 e5 Bg4 f5 fxe5 f4 Be6 Ra6 Bh3 Rf6 g4 Rf5 gxf5 Be7 Bg4 hxg4 Qb3 Bc5 Qd1 Bf8 h4 Kf7 d4 c5 Kd2 g5 Kc2 c4 Kb2 g3 a4 g2 h5 b3 a5 f3 h6 b4 h7 f2 e6+ Kg7 a6 f1B a7 Be7 d6 Nc6 d7 Ne5 d5 Bf6 d6 Qa5 d8R Ne7 d7 Nd5 e7 Nf4 e8Q Rf8 h8B+ Kg8 Ra4 c3+ Ka1 c2 Nf3 g1B Qd6 Bg2 Ne1 Bd5 Bd2 c1B Nd3 Qc5 Bc3 Bce3 Rh7 Ba6 Qb6 Bac4 Nd2 Qc6 Nc5 b2+ Kb1 Qd6 Qa6 Bb3 Nc4 Qc6 Re7 Bf7 Nb6 Qg2 Ra8 Bfc4 d8N Bd5 Qeb5 Rf7 Bd2 Be6 Rb7 Ba2+ Kc2 b3+ Kc3 b1Q Qba5 Qbf1 Kb2 Qff3 Bb4 Bc4 Rc8 Qfh3 Rc6 Be6 Rd6 Qhg3 Ka3 b2 Rd2 Beb3 Nde6 b1Q Bg7 Qd3 Kb2 Bc2 Ka1 Qa3 Bf8 Bcb3 Bc3 Q3f3 Bd4 Qfg3 Ne4 Q3h3 Bb4 Qhf3 N4c5 Qe4 Na8 Qd3 Nb6
b2n3r/1BQ2k1P/rqP1RB2/1Rnr2qp/B4q1Q/1P1Q4/N1N2r2/3K2n1 b - - 0 1 legal: proof: h4 c5 f4 h5 a4 g5 hxg5 e5 g4 exf4 d4 cxd4 g6 b5 axb5 Bb7 g5 Bh6 gxh6 Bc8 e4 a5 c4 d5 e5 f5 b6 f3 b3 d3 h7 a4 g7 a3 e6 d4 e7 f2+ Kd2 f4 c5 a2 b7 f3 c6 Kf7 Qe1 Qb6 Qd1 Nd7 b8Q Nh6 Qg3 Bb7 Qh4 Ra6 Nc3 Ba8 Bb2 Nc5 Bh3 f1R Bc8 f2 g8B+ Kg7 e8Q Nf7 Qee2 Nd8 Bb7 Kg6 Rc1 a1Q Qee7 Qaa5 Bc4 Qab5 Qe5 Q5a5 Bb5 Kf7 Ba4 Qab5 Ra1 Q5a5 Kc1 d2+ Kc2 Qab5 Qde2 d1N Na2 Nc3 Qd3 Ne2 Nf3 Ng1 Ne1 Q5a5 Kd1 Qab5 Qc2 d3 Qeh2 d2 Bf6 Q5a5 Qd3 Qab5 Qhd6 Q5a5 Rh3 Qab5 Re3 Q5a5 Kc2 d1R Re6 Qab5 Qdc4 Rd5 Qd3 Qc4+ Kd2 Qg4 Nc2 Qg5+ Qdf4 Re1 Rd1 f1Q Kc1 Ree5 Re1 Re2 Kd1 Rh2 Qd6 Qff4 Qc7+ Nd7 R1e4 Rg2 Rb4 Rf2 Qd6 Nc5 Rb5 Qfg3 Qe5 Q3f4 Qc7+
4Nq2/4PN2/2KBBbk1/1Q1Qbq2/2n3qp/1RRn2P1/1P2Bn1b/2rn1Q2 b - - 0 1 legal: proof: c4 b5 a4 bxa4 f4 d5 g3 dxc4 Bg2 f5 Na3 e5 Bf1 g5 Nb1 a5 fxe5 f4 Qb3 Bf5 Qc2 Ra6 Qd1 Rg6 g4 Rg7 gxf5 g4 Qb3 g3 Qc2 g2 Qd1 Rg3 hxg3 Qd6 Kf2 Qd7 Ke1 Qd8 Kf2 Kf7 Kf3 c5 Ke4 h5 d4 c3 d5 h4 d6 a3 Kd5 a4 e4 a2 d7 f3 f6 c2 e6+ Kg6 e5 a3 e7 f2 e6 c4 f7 c3 e8B Nh6 e7 Ng4 Qe1 Nc6 Bf4 c1B Bh6 c2 Kd6 Nce5 Bf4 Bg7 Nd2 Nc4+ Kc5 Be5 Nh3 g1B Kc6 Bh2 Be2 f1N Ne4 Nfe3 Qb4 Nd1 Nhg5 Ngf2 Qb5 Bf6 Bc7 Bf4 Bd6 c1N Rf1 Qb8 d8Q B4e5 Bd7 Ncd3 Rc1 a1Q f8Q a2 Rc3 Qb1 Be6 a1Q Nf7 Qaa7 Qda5 Qd4 Qd5 Qd8 Qab5 Rh5 Bb4 Rg5 Ned6 Qg4 Ne8 Rf5 Bd6 Rf4 Bf3 Re4 Rb3 Re2 Rg1 Rc2 Be2 Rc1 Rf1 Nf4 Rc3 Qbf5 Re1 N4d3 Rf1 Ne4 Rf3 Nef2 Rb3 Ne1 Rfc3 Ned3 Qdc5 Qb8 Qd5 Qff4 Kd7 Ne4 Nh6 Bh8 Nc7 Qff3 Qf4 Qf8 Ne8 Bhf6 Kc6 Qf5 Nf7 Q3g4 Qf1 Nef2 Qdg2 Ne1 Qe4 Ned3 Qed5
Q1q2r2/1qB1pr2/2RBP2P/3P2q1/K1Q3Bn/3Nbrn1/k2rQ3/3nN2R b - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 g4 hxg4 b3 f5 Qc2 b5 Qe4 g3 Qg4 fxg4 axb5 a4 b6 a3 Nc3 Bd7 Nb1 Ba4 bxa4 Qd7 Nc3 Qd6 Nb1 Qd8 Kd1 Kd7 Kc2 Kd6 Kb3 Kc5 e4 g5 h4 a2 f4 g2 d6 g3 d7 g4 d3 Na6 h5 Bh6 b7 Nb4 b8Q Nc2 a5 Ne3 e5 Rh7 f5 Rf7 f6 Qc8 d8B Qb7+ Ka4 Nd1 e6 Be3 a6 Nh6 a7 Nf5 h6 Nh4 Ne2 g1R d4+ Kc4 d5 c5 Ka5 Kb3 Bb2 g2 Be5 c4 Na3 g3 Qc7 c3 Bd6 c2 Rc1 a1R Nf4 Ra2 Be2 Rf1 Bg4 g1N Nd3 g2 Qc6 Ne2 B8c7 Rb8 a8Q g1Q Qaa6 Ng3 Qcb5+ Kc3 Ka4 Rf3 Qa8 Rbf8 Qc4+ Kd2 Rb1 c1Q Rb6 Rb2 Nc2 Qg2 Nce1 Qc3 Nc5 Kc1 Rc6 Kb1 Qe2 Ka2 Ncd3 Rd2 Qc8 Qcb2 Qa8 Qc8 Qa6 Rg7 f7 Qbb7 Qa8 Rh8 f8Q Rgf7 Qg7 Rhf8 Qd4 Qh3 Bh5 Qf5 Bg4 Qg5 Qc4+
2b2R1r/1R1Pk3/NB2n2p/4B2P/1P2rNQR/nn5b/2Q1n1rn/4KbB1 b - - 0 1 legal: proof: d4 c5 e4 d5 a4 b5 axb5 cxd4 Ra5 d3 Ra4 d4 Ra1 Qd5 exd5 Ba6 Kd2 Bb7 Ke1 Bc8 f4 e6 Be2 Bd6 Bf3 Bc7 Be4 f5 g3 fxe4 f5 Bf4 gxf4 Kd7 Qf3 Kd8 Qd1 Ke8 c4 a5 h4 g5 b4 e3 b6 d2+ Ke2 a4 d6 g4 d7+ Ke7 h5 g3 c5 e5 c6 h6 b7 g2 c7 e4 Rh4 a3 Rg4 a2 Nh3 g1N+ Kf1 e2+ Kf2 e1N Bb2 d3 Na3 Nf6 Nb5 Nc2 Bd4 Nc6 b8B Nd8 Rh4 Na3 Qg4 d1B Bb6 e3+ Ke1 e2 Rc1 a1N Rc4 Ba6 c8Q Ne6 Rc7 Nb3 Rb7 Ra7 Qc2 d2+ Kf2 e1R Nc7 Bf1 Na6 Re4 B8c7 Bde2 Be5 d1B Ke1 Nd5 Bc3 Ne3 f6+ Kf8 f7 Ke7 f8R Ra8 Nc7 Ba6 f5 Ne2 Nf4 Bh3 Bcd4 Nf1 Bg1 Nh2 f6+ Kd6 f7 Ke7 Rbb8 Bc8 Rb7 Ra5 Na6 Rg5 Qf5 Rg2 Qg4 Rg3 Rg8 Rg2 f8B+ Kf7 Bg7 Ke7 Qc3 Bc2 Be5 Bd3 Rf8 N2d4+ Kd1 Bf1 Qc2 Ne2 Ke1
r3k3/2bQP1nn/P3Q3/n1rrN3/1rP3B1/1B1R2qq/2RKR2p/4B1nN b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 g4 e5 fxe5 cxd4 h3 g5 Na3 f5 Nb1 b6 Nd2 Bb7 Nb1 Bf3 gxf5 g4 Bg5 g3 Bc1 Bg4 hxg4 Bd6 Bg2 Bc5 Bf1 Bf8 e4 d5 c4 h5 a4 d3 e6 b5 e5 h4 f6 g2 e7 b3 a5 b2 a6 b4 g5 b3 g6 h3 g7 d4 Bd2 h2 Ra3 Qc7 Nf3 g1N Nc3 b1Q Ne2 b2 Ng3 Nc6 Bh3 Na5 Bg4 Rh5 Bc3 Qa1 Kd2 b1R Ra2 Qd6 Rc2 Rb4 Qe2 Qf1 Qe3 Nh6 g8B Nf7 Bh7 Ng5 Qe4 Bh6 Qd5 Bg7 Qe6 Qh3 Be4 Nh7 Bef5 Ne2 Rd1 Ng1 Nh1 Qc7 Re1 Bh6+ Re3 Bf4 Be4 Qg3 Bc6+ Qd7 Ba4 Rg5 Bb3 Rf5 Kd1 d2 Rd3 Rg5 Rb2 Rf5 Kc2 d1N Be1 Ne3+ Kd2 Rc8 Rc2 Ra8 Qd5 Rh5 Qe4 Nf5+ Qe3 Kf7 e8R Ng7 Re6 Kf8 f7 Rf5 Re7 Rh5 e6 Bc7 Qe4 Rc5 Ne5 Qc8 Re3 d3 Rd7 Nf5 Re2 Ng7 Rd5 Qd7 Qg6 Ke7 Qh6 Kd8 f8Q+ Ne8 Kc3 d2+ Bf3 d1R Qd6 Nef6 e7+ Ke8 Rdd2 Nh5 Kd3 Qdh3 Qhe6 Ng7 Ke3 Ra1 Rd5 Nb7 Rdd2 Rd5 Rd3 Raa5 Kd2 Rac5 Bg4 Na5 Qdd7+
Kn2q2Q/3p4/N3kqrP/1B4P1/nr3n2/3QPBR1/qNB3R1/b2q1N1n b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 g4 hxg4 Be3 Rh7 Bd4 Rh8 f3 exd4 Nd2 g5 Ra4 g3 Ra5 g2 Kf2 g4 Nb1 g3+ Ke1 Bb7 Ra1 Bd5 Qc1 Be6 Qd1 Bg4 fxg4 Rh6 Ra2 Rh5 Ra1 Rh8 Kd2 Ke7 Kd3 a5 Kc4 f5 h4 f4 b4 a4 b6 d3 Kb5 d2 c4 f3 e3 f2 b7 a3 c6 a2 g5 Ra7 h5 Nf6 c5 Ra4 h6 Ra8 c7 Nd5 c8B Kf7 c6 Ke6 c7 Kf7 Nc3 Be7 Nge2 g1N Na4 g2 Rh2 Ra6 Nb2 Nf4 Ng3 Bc5 Bd3 f1N Bc2 Nc6 b8Q Bd4 Bb7 Qe8 c8B Nge2 Ba8 g1Q Rg2 Ra4 Ba6 Qf2 Qb1 Be5 Kb6 d1Q Kb7 Ke6 b5 Rg8 b6 Nc3 Bb5 Rg6 Qd8 Nb8 Qc8 Qe7 Qh8 Rb4 Ka7 Qfe2 Bf3 Qe8 b7 Na4 Ka8 Bd4 Qc1 Qc4 Qd2 Be5 Rc1 a1Q Qd3 Qd4 Rb1 Qa2 Rc1 Bg7 Ra1 Qf6 Rc1 Nh2 Nf1 Ng4 Rb1 Nf2 Ra1 Nc6+ b8N Nh1 Rc1 Qef7 Na6 Nb8 Ra1 Qe8 Rg3 Qe2 Re1 Qd1 Re2 Qf5 Nc4 Ba1 Nb2 Qf6 Reg2
R2RBN2/3Bbk2/1K1P4/P4p1b/4n1r1/rN1b2nb/1Qn1PQb1/B2N2n1 b - - 0 1 illegal: No possible last move
Nb1n1K2/1bR1P3/b2b2kN/2Q3Br/1p2N3/2B4n/RQPP1B2/1brrr3 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 a5 b3 a4 Bc4 c5 b4 cxb4 Bb3 axb3 exd5 e4 Bb2 Qc7 Bc1 Qe5 fxe5 Ra3 Kf2 Ra4 Ke1 Ra8 Ke2 g5 Ke3 b5 Kd4 f5 h4 Kf7 a4 e3 h6 e2 e6+ Kg6 Ke5 e1B h5+ Kh7 a5 f4 d6 b2 d7 b3 d8B g4 a6 f3 a7 b4 Ne2 f2 Bg5 f1B Nd4 g3 Nf5 g2 Ra2 g1R Nc3 b1B Bb2 Bh4 Ne4 Ne7 Kd6 Bb7 Bd4 b2 Bf2 Nbc6 Qe2 Re8 a8N Nd8 Qc4 Bd3 Qc5 Rc1 Rh3 Bda6 Rc3 Ng6+ Kd7 Bd6 e7 Bhg3 Rc4 Ref8 Rc3 Kg8 h7+ Kf7 h6 Nf4 Rc4 Kg6 Rc3 Rhg8 h8Q Nh3 h7 Rd1 Qhe5 Rh8 Nh6 Rf3 Rc4 Re3 Qc3 Ree1 Qb3 Rf8 h8B Rf5 Ke8 Bb8 Bc3 Bgd6 Bf4 Rh5 Bg5 Rc1 Kf8 Rcd1 Ra4 Ba2 Ra5 b1R Qb2 Rbc1 Ra4 Bb1 Ra2 Bg3 Qa7 Bge5 Rc7 Bd6 Qc5
r6R/2RQbPnr/4Nb1Q/2B4n/b2B1P2/RN1k2PQ/K1b4p/nn1r4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 Bh3 f4 Nc6 e4 Qd7 b6 Nb8 Bc4 Bg4 h4 Qf5 Ba6 gxh4 Bc8 Be2 exf5 Ba6 Be6 fxe6 Qe2 Bb7 Qd1 Bc8 b4 Kd7 d4 Kd6 Kd2 c5 Kc2 a5 Kb2 h5 b7 h3 b5 a4 f6 h4 g3 h2 b6 e5 f7 e4 Qd3 e5 Ka2 h3 Ne2 e3 Qd2 a3 Rg1 h1B Qa5 h2 Nbc3 e4 Bb2 c4 Na4 c3 Qa7 c2 Rg2 c1N+ Kb1 Na2 Nc1 e2 Qa6 e1R Rg1 e3 Nc5 e2 Ne6 Nc6 b8R Nf6 b7 Bd7 Rd8 Rd1 b8B+ Ke7 Rc8 e1B Ba7 Nh5 d6+ Kf6 d5+ Kf5 Bbd4 Ke4 Bac5 Nd8 Rg2 Bc6 d7 Rh7 d6 Be7 Rc2 Bc3 Qf1 Bb5 Qh3 Ba4 Rc7 Bf3 Rb2 Bg4 Rb8 Bf5 Rbc8 Nb7 Rh8 Nd8 Be3 Bcf6 Bed4 Rd3 Nb3 Nc3+ Kc1 a2 Kb2 Rd1 Ka3 Nc6 d8Q Kd3 Qf8 Nd8 d7 Nb1+ Kb2 Be4 Qh6 Bg6 Ng7 Ne6 d8Q Kc4 Qc8 Bc2 Qd7 Kd3 Rcc8 Nc7 Ne6 Ne8 Rc6 Neg7 Rc7 Nd2 Rb1 a1N Ka2 Rf1 Re1 Nb1 Re5 Re1 Rd5 Rd1 Rd6 Bb5+ Ra6 Bc6 Ra3 Bb5 Qd5 Ba4 Qd7
1B4nn/3q2q1/2N1R3/rnq2P2/2RPp1P1/2Bnn1KB/2QR4/2k1nNQb b - - 0 1 legal: proof: c4 d5 a4 dxc4 e4 f5 f4 fxe4 g4 b5 axb5 a6 f5 Qd7 f6 Qd8 Kf2 g5 Qf3 a5 Qa3 Bh6 Qh3 Ra6 Be2 Rc6 Qh4 Rc5 Bf1 Rf5+ gxf5 g4 Ke1 g3 Qg4 g2 Qe2 Bf4 Qd1 Bg3+ hxg3 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 Kf7 b4 c5 d4 h5 g4 e5 b6 a4 b5 e3+ Kf3 e2 b7 e1N+ Kf2 h4 b6 a3 Nc3 h3 Ne4 h2 Bg5 a2 Rc1 a1N Qf3 c3 Rd1 c4 Bh6 c2 Be3 c1N Qf4 c3 Qh6 c2 Bb5 Nc6 b8Q Na7 b7 Qd7 Qh3 Ncd3+ Kg3 c1Q Nf3 g1N Qa8 Nac2 b8B Bb7 Ba6 Nb5 Bf2 Ne3 Qg2 Nh3 Ned2 Qc5 Qg1 Nhf4 Nf1 Ng6 Rd2 Rh6 Qa7 Nh8 Qb6 Be4 Qa5 Bd5 Qc3 Bc6 Qc2 Rg6 Qg2 Rh6 Rg1 h1Q Qh2 Be4 Rg2 Rh7 Qg1 Qh6 Rh2 Qg7 Rh6 Ke8 f7+ Ke7 f8R Bd5 N3h2 Bh1 Rc8 e4 Re6+ Kf7 Nf3 Rh6 Ree8 Kf6 Ne5 Kg5 Nc6 Rd6 Re6 Rd5 Kh2 Re5 Bh4+ Kf4 Bd8 Qce7 Ba5 Qc5 Bc3 Qcf8 Ne7 Nd6 Re8 Kf3 Ng3 Nb2 Bc4 Ra5 Bf1 Nbd3 Rc8 Nb5 Rc4 Qfc8 Bh3 Qc5 Nf1 Na7 Qb3 Nb5 Rd1 Ke2 Nc6 Ra8 Kg3 Ra2 Rc1 Ra5 Rc2+ Kd1 Rd2+ Kc1 Qc2+
N1BBK2b/PR2Q3/q1QP2R1/1N1b1NPp/2rrB2r/2k5/4q1r1/5rrr b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 Ba3 g5 Bb2 f4 Bc1 Ne7 h3 Nf5 gxf5 Nd7 h4 g4 Qb3 Nc5 Qc2 Ne6 Qd1 Ng5 hxg5 Bd6 Bg2 Bc5 Bf1 Bf8 Kf2 Kf7 a4 c5 d4 h5 e4 b5 d6 c4 e5 b3 d5 c3 f6 c2 e6+ Kg6 a5 Kf5 f7 Ke5 e7 b4 e8B b2 a6 b3 d7 Rh6 a7 Qa5 d8Q Qd2+ Ne2 Ra6 Bc6 Bg7 f8N Be6 Qe7 Bh8 Na3 b1R Bh3 b2 Nb5 Ra2 Nd7+ Ke4 Nb6 Kd3 Qe1 Rd8 Na8 Qd1 Be3 c1R Bd2 Rc4 Ng3 Bg8 Nf5 g3+ Kf1 g2+ Kf2 g1R Q1e6 Rg4 Ba5 Rh4 Qg6 Rd6 Bd8 Rbc1 Re1 b1R+ Re2 Qa4 Rb2 Qa6 Bb7 Rd7 Qc6 Rg1 Bg2 Rgh1 Bc8 Rbg1 Re1 Rd6 Re6 Bf7 Na3 Kc3 Rg6 Re6 d6 Re4 Nb6 Bd5 Na8 Raa1 Rb7 Rd4 Bf1 Rgg4 Bd3 Rag1 Bb1 R1h3 Be4 R1g2+ Kf1 f2 Ke2 f3+ Ke3 f1R Nb5+ Kb2 Ng3 Rhh1 Nf5 f2 Kf3 Rgg1 Ke3 R4g2 Kf3 R4h3+ Kf4 R3h2 Ng7 Rh4+ Kf5 Re1 Kf6 f1Q+ Bcf5 Qd3 Be6 Kc2 Kf7 Ref1+ Nf5 Kd2 Ke8 Qe2 Bf3 Kc2 Be4+ Kb2 Bc8 Kb3 Nbc7+ Kc3 Nb5+
1Bn1b1R1/2K1Nq1B/k4N1q/P6q/1R1p1n1P/4Q1bn/1Rb1B1Pn/3Q2q1 b - - 0 1 illegal: No proof kernel
2kq4/2B1nBRr/1rN1n3/PP1r1Qq1/2Nr2P1/p7/3QKRBR/n1qn4 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 cxd5 e5 Rh3 exf4 Rh1 a4 Nh3 b5 Bb2 Bf5 Ba3 Bc2 Ng5 Bb3 Nh3 Bc5 Ng1 Bb6 Bb2 Ba5 bxa5 b4 Ba3 Bc2 Bc1 b3 Nc3 b2 Nb1 Bb3 axb3 Qd7 Na3 Qd6 Nb1 Qd8 d4 Kd7 e4 c5 g4 h5 e5 f5 b4 h3 d6 f3 e6+ Kc8 e7 h2 e8B f2+ Ke2 c4 d5 f4 Bh3 f1N Qd4 a3 Qa7 c3 Kf2 c2 Bc6 f3 Nc3 b1R Na2 h4 Bg2 h3 Qc5 Ne7 Bf4 c1N Be8+ Nbc6 Bf7 Nb3 b5 Rh5 Qc2 Rd1 Nb4 Rb8 Ra2 Rd4 Qd2 Ne3 d7+ Kb7 d6 Na1 Qc2 Rhd5 Qf5 Nd1+ Kf1 f2 Ke2 f1R Nf3 Rg1 Nd2 Rf1 Rg1 h1Q Nc4 h2 Rc2 Rf3 Rf1 Rh3 Rf2 Rh7 Rd2 Qg1 Bg3 h1Q Bh2 Qg8 d8R Qg5 Rg8 Nd8 d7 Ne6 Bc7 Qhh4 d8Q Qgh1 Rg7 Qg1 Qd6 Kc8 Ra2 Rb6 Nc6 Qe1+ Kf3 Qc3+ Ke2 Qcc1 Qdf4 Qh2 Qd2 Qd6 Rc2 Qd8 Rc3 Qf8 Rh3 Qd8 Rh2
3B3B/r1N2Ppp/1kN3Q1/QB1P4/2b3rn/K1P1r1RR/1n2b3/1N3bqn b - - 0 1 illegal: Other
1rr5/2N1q1RK/3B2r1/R2bQ3/2nN1R1n/2PQ2n1/BpQbqPpP/5k2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 e4 f5 exf5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Kf3 Kf6 Ke4 g5 h6 e5 c3 d5+ Kd3 g4 b6 e4+ Ke2 Ke5 f6 b3 f7 b2 b7 d3+ Ke3 g3 h7 d4+ Kd2 Kf4 Ra4 e3+ Ke1 g2 Ra5 d2+ Ke2 Nc6 Kd3 e2 b8R Bb7 Rg5 Nf6 Qc2 Bh6 f8Q Na5 Nf3 Qe7 Na3 Bd5 Rb4 Rb8 Rg7 Nc4 Qd8 Nh5 Nb5 Ng3 Nc7 e1R Qd7 Rhc8 h8Q Re6 Qhe8 Rg6 Qb5 Qd6 Qe5+ Kg4 Rg1 d1N Bf4 Qe7 Be2 Nde3 Ra1 Nef5 Ra5 Nh4 Qa6 Nh5 Bg3 Bd2 Bf4 Bg8 Ke4 d3 Nd4+ Kh3 Be3 Ng3+ Kf4 Bd5 Bh5 Re6 Bf7 Rg6 Bg8 Be1 Qad6 d2 Bf7 d1Q Bd2 Rf6+ Kg5 Qe2 Bf4 Bd2 Bg8 Rff8+ Kh6 Rf6+ Kh7 Rg6 Qd8 Kg4 Qe6+ Kh5 Bd6 Kg5 Qe5+ Kg4 Nc6 Kf3 Qd7 Qe3 Bf7 Ke2 Nd4+ Kf1 Qdf5 Qe2 Qfd3 Bb7 Bd5 Na3 Ba2 Bd5 Rba4 Nc4 Nf3 Nb6 Rf4 Nc4 Nd4
2bRB1KQ/1r3Q1n/n2qNP1q/p2kNp1B/6R1/Q1r1B1P1/nPb4q/8 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 f5 cxd5 g6 e4 fxe4 f4 Nh6 g4 Bg7 f5 Bd4 f6 Ng8 Qf3 Be5 Qf5 Bg3+ hxg3 gxf5 Kf2 Kd7 Ke3 Kd6 Kd4 h5 b6 a5 b7 e3 g5 h4 g6 c6 g7 h3 Be2 e6 Nc3 h2 Na4 Ne7 g8B Ng6 Bh5 e2 Bf7 e1Q Nf3 Qe2 Ne5 Na6 Rd1 h1B Nc5 Qh2 Be8 Be4 Ra4 Nf8 b8Q+ Qc7 d3 Ra7 Qb4 Nh7 Be3 Rb7 Qa3 Qg7 Kc4 Qh6 d4 Bc2 Rb4 Rf8 Ra4 Rff7 Rd3 Rb3 Rd2 Rfb7 Rd1 Kc7 d6+ Kb6 d5 Rc3+ Kd4 Kb5 d7 Kb6 Ng4 Kc7 Ke5 Kb6 Nb3+ c5 d6 Kc6 Rb4 c4 Nd4+ Kc5 d8Q Qg6 Kf4 Kd5 d7 Qg7 Qe7 e5+ Kf3 e4+ Kf4 Qh8 Ne5 Qf8 Qg7 Qe7 d8Q+ Qd6 Bf2 e3 Ne6+ Rd3 Qf8 e2 Qf7 e1Q Be3 c3 Ra4 Qed2 Rc4 Nf8 Kg5 Nh7+ Kg6 Qc1 Kg7 Qcd2 Bd4 Qh6+ Kg8 Bb1 Nc7+ Ke4 Bc6+ Qd5 Kh8 c2 Ne6 c1N Qde8 Bc2 Be3+ Rd4 Qeg8 Na2 Be8 Qc5 Ra4 Rc4 Rd8 Qd6 Qgg7 Kd5 Kg8 Rc6 Qh8 Rc3 Rg4
K4R1r/4r3/Np1Pb1N1/2n1Q1p1/3n2B1/n1PB2Rb/1PQ1bqR1/qQ5k b - - 0 1 legal: proof: g4 h5 gxh5 e5 f4 exf4 a3 Bb4 axb4 c5 bxc5 d6 e4 Rh7 e5 Kf8 e6 Ke7 d3 Ke8 Bd2 Rh6 Bc3 Rh8 Be5 dxe5 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 h4+ Kh6 c6 a5 c3 g5 e7 f3 e8Q a4 d4 a3 d5 a2 c7 f2 d6 f5+ Kd5 f4 Rh3 e4 Bd3 f1B Na3 b6 Qc2 e3 Rg3 e2 Nf3 e1N Qe5 Qf6 Nb5 Na6 Kc6 Be6 Kb7 Be2 c8B Ne7 Nc7 Nf5 Qa5 Qf7 Ne5 f3 Ng6 f2 Rb1 a1Q Qa2 f1B Rc1 Kh7 h6 Bh3 h5 Nd4 Rd1 Qf5 Rd2 Qf2 Bd7 Rag8 Bc8 Rg7 Ka8 Nc5 Na6 Bg8 Bg4 Re7 Qcb1 Nec2 Qc1 Na3 Qc2 Bd1 Re2 Qf6 Rh2 Qf2 Rhg2 Be6+ Nb8 Kg8 h7+ Kg7 h6+ Kf6 Bb5 Bc8 Bd3 Be2 Na6 Be6+ Nb8 Rhe8 h8R Rg8 h7 Rge8 Nh4 Ke5 Rg8 Kf4 h8Q Rh7 Qg7 Re7 Na6 Rh5 Bf3 Rh8 Ng6+ Ke3 Rf8 Qfe1 Rg1 Kf2 R1g2+ Kf1 Bg4+ Qf2 Rh2 Nf3 Qe5 Nd4 Re3 Kg1 Rg2+ Kh1 Rf3 Rf7 Rfg3 Re7 Qab1+
1B6/rqQ2b1p/RP4r1/qp2n2K/R2b1Q2/4k2B/P1PnNN1r/qN3R2 b - - 0 1 legal: proof: e4 c5 h4 g5 d4 gxh4 b4 f5 exf5 a5 bxa5 cxd4 Nh3 b5 Ng1 Qb6 axb6 Ra4 Qf3 Ra7 Qd1 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 g3 e5 f6 d5+ f5 d3 f7 d2 Rh2 h3 Na3 d4 Kh4 d3 f6 Be6 g4 Bg7 f8Q Ra7 g5 Nd7 g6 Ke3 f7 e4 Qe8 Ngf6 f8R Rg8 Qg4 Bf7 Nb1 Ne5 Ne2 Bh8 Bb2 d1Q g7 d2 Qc6 Qe1+ Kg5 d1R Ra8 Qa5 Qc7 Rd2 Rh1 h2 Bh3 Nf3+ Kh6 Nd7 Rf1 h1Q Be5 Qg2 Bh2 Nde5 Rf2 Re8 g8N Re6+ Nf6 Qh1 Rg2 Red6 Qf5 Rc6 Rg4 Qg2 Ng1 Re2 Bg3 Nd2 Rf4 Rf2 Ne2 Qf3 Rg4 Rh2 Rh4 Qg4 Qf1 Qc8 Kg5 Qb8 Qc1 Qb7 Ng4+ Kf3 Bf4 e3 Nf2 Rg6+ Kh5 Bg7 Bg3 Bf6 Ra4 Bg7 Nec3 e2 Bf4 e1Q Ne2 Nd7 Bg3 Ke3 Bd6 Bd4 Bg3 Qb4 Ra6 Ne5 Ra4 Ra5 Ra6 Qc6 Qd6 Ng4 Ra7 Qb7 Na3 Kf3 Qd5+ Ne4 Bb8 Ne5 Qc4 Qb2 Rb1 Qa1 Qc7 Qec3 Qh6 Nd2 Rf1 Ra6 Qg5 Qa5 Qh4 Ke3 Nb1 Qg2 Rb7 Ra8 Ra7 Qb7 Ra6 Ra7 Qf4+
B5KN/1qbN1QPr/P4q2/q2p3r/2NPnB2/2Q1p1R1/3R1b2/1R1nkr2 b - - 0 1 legal: proof: g4 g5 f4 f5 fxg5 f4 h4 f3 c4 b6 h5 Bb7 exf3 Be4 b4 Bg6 hxg6 a6 b5 axb5 f4 bxc4 f5 c3 Kf2 h5 Kf3 e5 Ke4 Ke7 Kd5 c5 d4 c4 a4 b5 g7 h4 g6 Kf6 a5 c2 a6 e4 Ra3 c3 Bd2 c1B Bc4 h3 Bf1 h2 Qb3 c2 Qb4 Rh5 Ra1 Bd6 Ne2 Bc7 Qc3 b4 Bg2 b3 Be1 Kg5 f6 b2 f7 Ra7 f8Q Qf6 Nd2 b1R Nc4 Nc6 Nf4 Be3 Qf7 c1Q Bg3 Bf2 Ra2 e3 Rd2 Qa3 Rg1 Ra1 Rb1 h1Q Bh2 Kh4+ g5 Na5 Be4 Nh6 g8R Nf5 g7 Nd6 Ng6+ Kg4 Bg2 Ne4 Bf4 d6 Nh8 Qa4 Bh3+ Kf3 Bd7 Qb4 Bc6 Qb6 Ba8 Qb4 Rg1 Rf1 Rb8 Qa3 Rb1 Rb7 g8N Qb4 Na3 Nc4 Rg2 Nb2 Nc4 Nd1 Rg1 Qg7 Ke6 Qa5 g6 d5 Rg4 Qh4 Nf6 Ra7 Nd7 Qd8 Rd3 Ke2 Rd2+ Ke1 Rg3 Qc8 Ke7 Qb7 Ke8 Qf6 Kf8 Qb2 Bc6 Qb7 Kg8 Ra8+ Qf8 Re8 g7 Ree5 Qf7 Rh7 Rg2 Reh5 Rg3 Qbb6 Ba8 Qa7 Rg2 Qb7 Rg3
1r5k/1RP2KBq/rBNb1N1p/4RPb1/p1B1nN2/Q4Q1q/4Pbq1/6n1 b - - 0 1 illegal: No possible last move, all moves rejected
nB6/B1p1P1bb/r3B1Q1/4NQ2/3N1rq1/1P1PRp2/qb1n4/2n1KNRk b - - 0 1 legal: proof: c4 d5 cxd5 e5 Qa4+ b5 Qb3 b4 Qd1 b3 axb3 Bg4 Ra6 Bd7 Ra1 Bc8 g4 h5 gxh5 a5 f4 exf4 Qc2 a4 Qd1 a3 Ra2 axb2 Ra4 Qf6 Ra1 Qd8 e4 Ke7 h4 Kd6 h6 Ke5 h7 g5 d6 f5 d7 g4 d3 f3 h5 f2+ Ke2 g3 h6 f4 Ra6 f3+ Kd2 Kf4 e5 g2 e6 Kg3 e7 Nf6 Re6 Bg7 Re3 Qg8 d8N Nh5 Nf7 Ra6 Ne5 Nd7 Qc2 Qe6 Qc6 Qg4 Qg6 Rf8 h8Q Rf4 h7 Nb6 Qf8 Na8 h8B Bf5 Kd1 Be4 Nd2 b1Q Qff5 Qa2 Ba3 Bd5 Bc5 Bg8 Ba7 Bh7 Nh3 g1B Bb8 Bh2 Ng5 Bg1 Bg2 f1N Ne6 Bf2 Rg1 Kh2 Bh3 Nhg3 Nd4 Ne2 Qb6 Bh4 Qbg6 Bhf6 Ke1 Nc1 Qfg5 Qg2 Be6 Qg4 Q5f5 Ng3 Rg2+ Kh1 Nf1 Ne4 Rg3 Bf8 Bg7 Nd2 Bh6 Bh8 Bg5 Bfg7 Bh4 Nb1 Rg2 Nd2 Bf2 Ra3 Bg1 Ra6 Ne2 Qa3 Re4 Bh6 Nc6 Bb2 Ne5 Na2 Bga7 Bg7 Nd4 Nc1 Re3 Qa2 Rg1+
1B2k3/1N6/rPn2B2/2b1Q1P1/rnn2n1K/1pB1pP1b/Q1nR1N2/1Q1q1R2 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 a4 Nb8 a5 b6 axb6 a6 b7 Be6 Qc2 Bd7 Qd1 Bc8 b4 Bg7 b5 Bh6 b6 Bf8 Bb5+ axb5 d4 h5 g4 c5 f6 e5 f3 h3 Kf2 h2 Kg3 e4 d6 e3 g5 c4 d5 h4+ Kf4 h3 Kg3 b4 Qf1 c3 Bb2 b3 Qf2 c2 Na3 c1N Nc4 Nc6 b8B Na2 Na5 Ncb4 Rd1 Rh4 Bc3 Nc2 Nb7 Rha4 Rd2 Nab4 Kh4 Ne7 Qe2 R8a6 f7+ Kd7 Qf1 Nec6 Qb1 Be7 f8B Ke8 Bfg7 Bf8 Bgf6 Be7 Ne2 Bf5 Re1 h1N Ng3 h2 Rf1 Nf2 Nh1 Ne4 Nf2 h1N Qa2 Nhg3 d7+ Kf7 d6 Bh3 Qb1 Nh5 Qa2 Nf4 Qb1 Qc7 d8Q Qd7 Qh8 Qd8 d7 Nd6 Qa2 Nc4 Qh7+ Kf8 Qe4 Bc5 Qe5 Qc7 Qb1 Qd6 d8Q+ Kf7 Qc8 Qd3 Qa2 Qe2 Qcf5 Qd1 Qd6 Ke8 Qfd3 N2a3 Qdb1 Nac2 Qe5+
b2N1n2/b1QBpRK1/nPr1R2Q/QP2P1R1/1r2q3/p1B3b1/3bk3/4n2N b - - 0 1 legal: proof: f4 f5 c4 d5 cxd5 b5 a4 g5 axb5 h6 fxg5 hxg5 g4 fxg4 Kf2 Kd7 Kg3 Kd6 h4 Ke5 e4 Kd4 b4 a5 d6 c5 h5 a4 b6 a3 d7 c4 e5 c3 h6 c2 h7 Na6 b5 Bh6 Bb2+ Ke4 d4 Ke3 d5 c1B d6 Bd2 Nh3 Rb8 Nc3 Bb7 Qa4 Ba8 Ne2 Rc8 Qa5 Nf6 Nhf4 Rc6 Rh5 Qe8 d8R Nd7 Ra2 Nf8 d7 Qg6 Bc3 Qe4 Ne6 Rg8 h8Q Rg6 Kh2 g3+ Kh3 g4+ Kh4 g2 Rg5 g1N Kh5 g3 Bh3 g2 Ng3 Nf3 Nh1 g1B Bg4 Be1 Rf2 Rg8 Rf1 Bg3 Bh3 Ne1 Rf7 Ke2 Bf5 Bg7 Qh6 Bc5 Rc8 Bf6 d8Q Bd6 Qc7 Rg6 Nd8 Rg7 Rg4 Bg5 Bd7 Bd2 Rg5 Rg6 Qb7 Rc4 Rc6 Bb8 Qc7 Ba7 Re6 Rf6 Qg7 Rf4 Kh6 Rc6 Qf6 Qf5 Qg6 Rb4 Kg7 Qe4 Qh6
2r4k/qqBb2N1/3nPr1n/1pB1P3/rBPp1Qr1/b3N3/4NK2/QR3R2 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 axb4 d4 c5 dxc5 f5 gxf5 Nf6 Bh3 Ng8 Bg4 hxg4 h4 Kf7 a4 b5 c4 d5 e4 g5 e6+ Kg7 c6 b3 c7 d4 h5 g3 h6+ Kh7 a5 g4 f6 b2 a6 g2 a7 g3 f7 Qf6 Ne2 Qg7 Bd2 Qg6 Rf1 g1R Nbc3 b1Q Nd5 g2 Ne3 Ba3 f8B Nc6 Bc5 Qg7 Qc1 Qa2 Kf2 Ne5 Bdb4 Bd7 c8N Nf7 Rb1 Nd6 Ne7 Rh1 e5 g1R N7f5 Rg4 Qd2 Rf8 a8Q Rf6 Qc1 Rhg1 Qf3 Rh1 Qf4 Qf7 Ng7 Rh3 Nef5 Rc3 Ne3 Rb3 Ba5 Rb4 Bc7 Ra4 Bb4 Qh5 Qb2 Qh1 Qa1 Qb7 Bc5 Ne7 Bb4 Nef5 Bc5 Rc8 Bb4 Kg6 h7 Nh6 h8B Kh7 Ngf5 Qd2 Bg7 Qa2 Bf8 Kh8 Ng7 Qc2 Be7 Qh7 Bed8 Qa7 Bb6 Qe4 Bdc7 Qeb7 B6c5
2n1NQq1/2nKPq1R/RB2Q3/P1b2Q2/3pR1n1/B2P1b1p/2r1k3/N3n1r1 b - - 0 1 legal: proof: c4 b5 f4 g5 h4 e5 hxg5 a6 fxe5 Ba3 e3 Bf8 b4 Nc6 Bd3 Nb8 Be4 Bg7 Bc6 bxc4 b5 Bh6 b6 Bf8 Bb5 axb5 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf4 Kd5 g4 c5 a4 h5 a5 b4 b7 c3 e4+ Kd4 e6 Kd3 Ke5 d5 e7 f4 e8Q b3 g6 h4 g5 d4 g7 b2 g6 c4 Qh5 f3 Qf5 c2 Nh3 f2 Na3 f1Q Nf2+ Ke2 Qee6 b1Q Ng4 c3 Nf6 Ne7 g8Q Na6 b8B Bb7 g7 Nc8 Ba7 Nc7 Bb6 Bc5 Qf8 Rg8 Ne8 Qf2 Bb2 c1N Nc2 Qd5+ Kf6 Nd3 e5 Ne1 Ba3 Qba2 Rd1 Qe4 Na1 c2 Rf1 Qg3 Rf4 c1N Kf7 Ncd3 Rc1 Nb2 d3 h3 Rb1 Nd1 Rb5 Rh8 g8R Nf2 Rg7 Rg8 Rh7 Qgf3 Rb3 Rg1 Rc3 Ng4 Rc1 Nd6+ Ke7 Nc8+ Kd7 Ra6 Qef6 Qg8 e6 Ra7 e7 Ba8 Q6e6 Rb7 Ba7 Rb2 Rb1 Rc2 Rb6 Bd5 Ra6 Qg3 Rf1 Qf4 Bb6 Bb7 Qg5 Qff7 Rf4 Qe5 Qgg6 Bf3 Qgf5 Qe4 Rxe4+
1b6/bp1r1P1Q/3kQ2P/1nb1qp2/K1R2b1P/3BNR1q/Br1Rn1B1/7N b - - 0 1 illegal: No proof kernel
3q4/p1N1B2n/3BrQQP/2RKP1rN/5R2/P4r1q/2b1p2R/rbkQn3 b - - 0 1 legal: proof: d4 e5 b4 c5 bxc5 f5 g4 fxg4 f4 Bd6 e3 e4 Bc4 Be5 dxe5 h5 Bf1 h4 f5 h3 Bg2 hxg2 Nh3 g1Q+ Ke2 Qg2+ Ke1 Qf3 Ng1 Qf4 exf4 Qb6 Kf2 Qc7 Ke1 Qd8 Kd2 Ke7 Ke3 d5 Kd4 g5 h4 b5 c4 b4 h5 e3 c6 g3 c7 e2 c5 g4 c6 b3 h6 g2 a3 b2 f6+ Ke6 f7 Kf5 f8B g3 Nc3 b1B Kc5 d4 Qf1 d3 Qe1 d2 Kc4 d1R Bd6 Nf6 Nh3 g1Q Nd5 Ke4 f5 g2 Rh2 Qf1 Nhf4 g1R Nh5 Na6 Bg5 Nh7 f6 Qh3 f7 Re8 f8Q Bf5 c8Q Nc5 c7 Re6 Bge7 Nd3 Qf6 Rg5 Qa6 Rb8 c8R Rb3 Qd2 Ne1 Rc5 Rf3 Nc7 Bc2 Qd5+ Ke3 Qb6 Rc1 Qd1 Bg6 Kd5 Rb1 Ra2 Ra1 Rb2 Bb1 Rb4 Bgf5 Qa4 Kd2 Rf4 Bfc2 Qbc6 Kd1 Qe8 Kc1 Qeg6 Qe8 Qd4 Qd8 Qd1+
1BQnK3/qR2pr2/3RbB2/Q2N4/2P2qrP/2P4q/Q1rb1p1b/2k1B1N1 b - - 0 1 legal: proof: f4 b5 e4 g5 a4 gxf4 axb5 c5 d3 c4 dxc4 Qb6 Be3 Qc7 Bc1 Qd8 g4 d5 g5 h5 Nd2 d4 Be2 Na6 Nb1 Nb4 Bg4 Nd5 exd5 hxg4 Kf2 Kd7 b4 Kd6 h4 Ke5 g6 Ke4 d6 a5 d7 f5 g7 g3+ Ke2 f3+ Kd2 g2 c3 d3 b6 f4 b5 f2 b7 f1Q b8Q f3 b6 a4 b7 a3 Qh2 a2 b8B Qc7 d8B Rh7 Qa4 Be6 Na3 Nh6 g8Q Nf7 Rb1 a1Q Nc2 Bh6+ Ne3 Qf4 Bb6 Nd8 Bd4 Rf7 Bf6 f2 Rb7 Ra5 Qa2 Rg5 Qg3 Rg6 Qg5 Rgg7 Qga5 Rg4 Qe8 Bg5 Qd7 Bh6 Qc8 Bg5 Nf3 g1B Rh3 Bh2 Ng1 Bh6 Rg3 Qh3 Rf3 Qfg3 Rf5 Bg5 Rd5 Qf4 Rd6 Bh6 Kd1 d2 Kc2 d1R Kb3 Rd4 Ka4 Rd2 Kb5 Rc2 Nd5 Kd3 Bd2 Bg5 Be1 Bh6 Nf3 Ke2 Kc5 Kd1 Ng1 Kc1 Kb5 Qe5 Kb6 Bd2 Kc7 Qf4 Nb6 Bd5 Kd7 Be6+ Ke8 Qhe3 Nd5 Qh3 Qb3 Qa3 Qa2 Qa4+ Qb5 Qa7 Qba5
2r5/1BNrr1P1/2Q1QN1k/b2rnp2/4qPRB/1RP1p1K1/b6r/1RbN4 b - - 0 1 legal: proof: e4 c5 h4 d5 b4 dxe4 bxc5 a5 a4 Na6 h5 b5 axb5 g6 bxa6 gxh5 Ba3 h4 Bb2 Rb8 Bc1 Ra8 f4 h5 Kf2 e5 g4 f5 d4 Kf7 c6 Kg6 d5 a4 c3 h3 d6 e3+ Kf3 e4+ Kg3 a3 c7 h4+ Kh2 a2 a7 e2 g5 e1R d7 Nh6 Be3 Bb4 Bf2 Ba5 Qa4 Rh7 Nd2 Qe7 d8R Nf7 Rb1 a1B Qc6+ Be6 c8Q Bb2 Bg2 Bc1 Rb3 Ne5 Rg8+ Kh5 g6 Kh6 Q8d7 Rc8 a8N e3 Qe8 Rd1 Ne4 Rd5 Nc7 Qb4 Be1 Rhd7 Nf6 Qe4 Rg7 Bf7 Qee6 Re7 Nf3 Rdd7 Nd2 Bg8 Nc4 Bf7 Kg1 h2+ Kf1 h3 Bh4 Bg8 Nb2 Bf7 Rg1 h1R Nd1 h2 Bf3 Rd5 Kg2 Bg8 Re1 Rf1 Kh3 h1R+ Kg3 Rh2 Bg2 Rf2 Rg1 Bf7 Rg8 Rfd2 g7 Ra8 Rgb8 Rdd7 Rb1 R2d5 R8b3 Rc8 Bf1 Bh5 Ba6 Be2 Bb7 Bc4 R3b2 Ba2 Rb3 Rhd2 Kh3 Rc2 Rg4 Rh2+ Kg3
KN1N3r/Nr2kpR1/nb1Rn2R/nr4P1/Br2B3/1Qp2P1P/5Q2/4q2r b - - 0 1 legal: proof: c4 d5 d4 dxc4 a4 e5 d5 b5 axb5 Bh3 Be3 Bc8 Bd4 exd4 Qd2 h5 Qd3 h4 Qd1 h3 Ra6 g5 gxh3 g4 Ra3 g3 Ra1 Bg4 hxg4 Qe7 Nd2 Qg5 Nb1 Qd8 Kd2 c5 b4 a5 e4 a4 f3 c3+ Kd3 g2 Kc4 c2 d6 c1N Kd5 c4 e5 d3 e6 d2 b6 c3 b5 a3 b7 a2 d7+ Ke7 b6 Qe8 d8R Rh7 Bd3 Ne2 Nh3 g1R Na3 Ra7 Qc2 d1R Rd6 Ng3 Nf4 Qd7 Qf2 Qc8 Nb5 Na6 b8Q Ne4 b7 Rb1 g5 Nec5 Be4 Qd8 Kc6 Rb4 Re1 a1R Rc1 Ke8 e7 Ra5 Ne6 Rh8 Rc2 Qc8+ Kb6 Rd1 Nd8 Qe6 Rd2 Qe5 Rh6 Ne6 Rd6 Qg3 Rh7 Qg1 Rg7 Qe1 Rc6 Kd7 e8B+ Ke7 Rd6 Rc1 Qc8 Rca1 b8N Rb7+ Kc6 Rab1 Na7 Rab5 Bd7 Rc1 Qc7 Rd1 Qa5 Rc1 Qaa2 Rcb1 Qb3 Rc1 Rg6 Bg7 Be8 Bd4 Rg7 Bb6 h3 Qe2 Rhd1 Ra1 R1d5 Rh1 Rf5 Qe1 Rf6 Nh6 Bd7 Nf5 Rh6 Ne3 Be8 Nc4 Qfb2 Rd7 Qf2 Nec7 Kb7 Ne6+ Ka8 Rb7 Bd7 Na5 Be8 Rc5 Ba4 Rd5 Bc2 Rdb5 Be4
b1K5/PB4PP/p3B1R1/q2pN1n1/3NQbrn/1Q6/b2B2bn/N3Rbk1 b - - 0 1 illegal: No proof kernel
2b2K2/Rr2rQ1k/3P2qp/1nB1r2P/2R1P1N1/2B2R1p/rN4qr/1BQb4 b - - 0 1 legal: proof: c4 d5 h4 dxc4 a4 g5 h5 b5 axb5 Na6 Qb3 Nb8 Qg3 Nd7 Qf4 Nb8 Qh4 gxh4 d4 Qd7 f3 Qd6 d5 Bg7 e3 Bd4 exd4 Qd8 Kd1 e5 Ra3 e4 Kd2 e3+ Ke1 Nd7 Ra4 Nc5 Ra1 Ne4 fxe4 Kf8 Ra5 Ke7 Ra1 Ke8 Ke2 Kf8 Kf3 Kg7 Kf4 a5 Ke5 c5 b4 f5 g4 h3 g5 c3 g6 c4 b6 h6 b5 c2 b7 a4 b8Q c3 b6 a3 b7 a2 Nf3 e2 Qc7+ Ne7 b8R e1Q Be3 c1R Bd3 c2 Nbd2 f4 Rb3 Qe8 Kd6 Qg1 Nh2 f3 Nc4 f2 Ng4 Rh7 Nb2 Ra7 Rh2 Kg8 g7 f1B Rf2 Re1 Rf3 c1R Rc3 Nc6 Bb1 Rb7 Bd2 Na7 Rc6 Qg6+ Ke7 Bd7 Qf4 Red1 Bc3 Rc2 Rc4 Nb5 Qc1 Qh2 d6 Rcd2 d5 Be2 Bc2 Bc8+ d7 Qg1 d6 Qh1 Rb1 a1R Bd3 Ra8 Ra1 Qh2 Ra5 Rh1 Bc2 Rd5 Bb1 Qg2 Ra1 Rh2 Ra3 Rbb8 d8B Bd1 Bb6 Ra6 Bc5 Rbb6 Rb3 Ra2 Ra3 Re5+ Kd8 Bf5 Ra7 Rb7 Ne3 Kf7 g8Q+ Kf6 Qd5 Kg7 Ng4 Bc8 Qe6 Kh8 Qe7 Rf7 Ke8 Kh7 Qe6 Rfc7+ Kf8 Re7 Qf7+
1k6/3rbn1B/2n2P1P/1R1rqQNN/3R2q1/Q1p2Q1N/1nPp4/K2Bnq2 b - - 0 1 legal: proof: e4 e5 g4 b5 a4 Qe7 axb5 Qd8 d4 f5 dxe5 fxe4 f4 h6 f5 Bb7 Bg5 hxg5 f6 Bd5 Ra5 Be6 Ra1 Bf5 gxf5 Rh7 Na3 Rh3 Nb1 Rh8 Kd2 d5 Kc1 Kd7 h4 Kc8 b4 a5 Kb2 c5 b6 c4 b5 c3+ Ka2 a4 e6 e3 e7 e2 e8B e1N h5 d4 f7 d3 f6 g4 Rh2 g5 Bg2 a3 Nh3 g3 Bf3 g2 Nd2 g1N Rb1 g4 Ka1 g3 Ne4 g2 Ng3 Be7 f8N d2 Ne6 Qd4 Neg5 Nh6 Bg6 Ra7 Bh7 Nc6 b7+ Kb8 Qe2 Nf7 h6 Qc5 Nh5 Qe5 Qf2 Rd8 Bd1 Rd6 Qf5 Ngf3 Rb4 g1Q Rd4 Nd3 Re2 Qeg3 Re5 Nb2 Rc5 Ne1 Qf3 Kc7 Re5 Rd5 b8Q+ Kd7 Qb6 Kc8 Qa6+ Kb8 b6 Rad7 b7 Qg4 Qad3 Qf1 Qdf5 Qb5 Rb4 Qa5 Ree4 Qc7 Red4 Qe5 Rb5 Nbd3 Kb1 Ng2 Rb3 Ka7 Ka2 Nb2 b8Q+ Ka6 Qb4 Ka7 Qd6 Ka8 Rb5 Ka7 Kb3 a2 Be2 a1Q Qb4 Qg1 Ka2 Qf1 Bd1 Ne1 Ka1 Ka8 Rc5 Ka7 Qa3+ Kb8 Rb5+
3nR1r1/kb1q2Q1/1BqP1bN1/2pR1N1r/BPKp2q1/Q4b1P/4R2q/B7 b - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 f5 exf5 e5 Be2 Bb4 Bf1 Bf8 d4 d5 c3 Nc6 Be2 exd4 Bf1 d3 c4 d4 Bg2 Nb4 Bf1 Nd5 cxd5 Bd6 Bd2 Be7 Bc1 Bf8 Kd2 Kd7 f4 g5 b4 a5 f6 c5 f5 Kc7 f7 Kb6 d6 g3 f6 g2 Ne2 g1Q Qb3 a4 Ng3 g4 Na3 Bf5 Ra2 Rh3 Bb2 Ka7 Nc4 a3 Ne5 Bc8 Ng6 Be7 f8R Nh6 f7 Bb7 Rg8 Qb6 f8Q Bf6 Qg7 Nf7 Bg2 Re8 Bc6 Nd8 Rh8 Rh7 h3 Rh4 Rh5 Rg8 Rd5 Rh5 Nf5 g3 Rh2 g2 Ra1 a2 Re1 a1Q Re8 Qaf1 Ba1 Qh1 Qa3+ Qa6 Bd7 g1Q Rf2 Qe4 Rg2 Qe7 Re2 Qf3 Bc6 Qh2 Bd7 Bc8 Bc6 Qg4 b6+ Kb8 b7 Ka7 Bb5 Qd7 Ba4 Qac6 b8B+ Ka6 Qb2 Bb7 Qa3 Kb6 Bc7+ Ka7 Kc1 d2+ Kc2 Ka6 Kd3 Ka7 Kc4 d1B Rg2 Bf3 Rge2 Rh6 Ba5 Rh5 Bb6+
Q3Nbqk/q2B1q2/1pB2r2/QNr3N1/p2bP3/b6K/3BP1P1/b1R1n1R1 b - - 0 1 illegal: No proof kernel forced: bxLB
2rb3r/3RN3/P1p3RB/n1KNN1b1/4q1R1/3P2PB/1p3kr1/1r1qQq1Q b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 Nh3 g5 Rg1 f4 Rg3 Nd7 Bg2 Ndf6 Ng1 Bf5 gxf5 g4 Bf1 Ne4 Rh3 g3 Rh6 g2 Rh5 Ng3 hxg3 Ra6 Rh1 Ra8 Kf2 Ke7 e4 Kd6 a4 Kc5 a5 Kd4 d6 b5 e5 h5 f6 b3 e6 b2 e7 h4 e8R h3 a6 h2 d7 b4 f7 b3 Nh3 Ne7 Na3 b1R Nc4 b2 Ra4 Nc6 Qe1 Be7 f8Q Na5 Qh6 Bg5 Re6 Rc8 Rg6 Qe8 d8N Qe4 Rg1 h1R d3 Rh2 Nc6+ Kd5 Ne7+ Kd4 Rh1 c6 Ne5+ Nc4 Be2 g1B+ Kf1 f2 Bg4 Rg2 Bd7 Qf5 Ke2 Qe6 Rb4 Qd5 Rb7 Na5 Kd2 f3+ Nf4 Qe4 Bh3 Rhd8 Kc2 Rh8 Nfd5 f1Q+ Bd2 f2 Rd7 Qfe2 Rh2 f1Q Qh4 Nc4 Kb3 Na5+ Kb4 Qd1 Bf4 Be3 Qh5 Bf6 Bh6 Beg5 Qf3 Re2 Qh1 Rg2 Ng8 Bd8 Nge7 Rc2 Rf2 Re2 Rf4 Rg2 Rg4 Qfe2 Nf6+ Ke3+ Nc4+ Kf3 Kc5 Qf1 Nfd5 Rh7 Qc3 Rh8 Ne5+ Kf2 Qe1+
B2n2r1/2r1qNP1/B2n4/3rpRN1/R1B2P1K/1RQq2Qp/r1Pb1k2/7n b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 g5 e4 fxe4 Qf3 g4 Qd1 g3 f3 Nf6 Be3 Nc6 Kd2 Nd4 Bf2 gxf2 g4 Bb7 Ke3 Ng8 Kd2 Bd5 h3 Be6 g5 Bg4 hxg4 Nc6 Bc4 Nb8 Bd3 Bh6 Bf1 Bf8 Ke2 Kf7 b4 Ke6 b6 Ke5 c6 Kf4 b7 Kg3 g6 d5 b5 a5 g5 h5 b6 h4 c7 h3 c8B e3 g7 d4 g6 a4 f4 a3 Nf3 a2 Ne5 Rh7 Nd2 Nf6 g8B Ne4 Bc4 Nd6 Bg2 f1N Nf7 Nc6 b8R d3+ Ke1 e5 b7 e2 Nf3 Qe7 N3g5 Nd8 Rg1 Ra5 Qd2 Rd5 Qa5 Rg7 Qc3 Rg8 g7 Rc5 Rb1 a1R Ra8 Rc7 b8Q Ra2 Ra6 Ne3 Rb2 Nd1 Rb3 Nf2 Ra4 Nh1 B8a6 Nc6 Qc8 Nd8 Kd2 e1R Ba8+ Kf2 Qg4 Re4 Rg3 Rd4 Rg2+ Kf1 Ke3 Rd5 Re2 d2 Kf3 Nf2 Kg3 d1Q Re3+ Qd3 Kh4 Nh1 Rb7 Kf2 Rb6 Nb5 Rf6 Nd6 Rf5 N6b7 Re1 Qa3 Qa1 Bb4 Rb1 Bd2 Qc3 Qe7 Rb3 Nd6 Qg3+
1R5r/N1N1ppRQ/PPq4n/qnRrN3/b4kBB/5P2/1n2r1Q1/1n4K1 b - - 0 1 legal: proof: e4 b5 c4 d5 g4 dxe4 cxb5 a5 b4 axb4 Nc3 c5 Nb1 h5 gxh5 g6 d4 c4 Qd3 Bg7 Qd1 Be5 Qf3 Bd6 Qd1 Bc5 dxc5 Rh6 Ne2 Rh7 Ng1 Rh8 a4 b3 h4 g5 h6 g4 c6 c3 c7 c2 a5 b2 h5 e3 a6 e2 b6 g3 h7 g2 h6 Qd6 Qd2 Kd7 Ra5 Ke6 Nc3 b1N Nf3 g1N Rc5 Nh3 Rg1 Qe5 Nb5 Kf5 Rg7 Bd7 c8N Nf4 Nca7 Nc6 Nc7 Rd8 Bh3+ Ke4 Be6 Nd4 Bg4 Ba4 Bb2 Qh5 Ne5 Nb5 Bd4 Rd5 Be3 Ne6 Bg5 Nf4 Bh4 c1Q+ Qd1 Ne6 f3+ Kf4 Kf2 e1R Qe2 Qc3 Qf1 Re2+ Kg1 Qa5 Qg2 Qg6 Rc3 Nc5 Rc2 Nf6 Rc3 Nd3 Rc5 Rf8 h8Q Ng8 h7 Nh6 Qg8 Nb2 h8R Qc6 Qh7 Rc8 Rd8 Ra8 Rd7 Rg8 Rd8 Rh8 Rb8
3n2nn/P2K1RR1/1N6/2NN2k1/1B1p4/p3bQqn/1PPQrr2/1Qrq2B1 b - - 0 1 illegal: No proof kernel
1rQB3K/1b1r1rP1/3B1bQ1/r2p4/5pnP/1rqBR1Qr/3RP1N1/1k2N3 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 h3 h5 Na3 g5 Nb1 h4 gxh4 Rh5 Be3 Rh6 Bc1 Rh8 Na3 g4 Rb1 g3 Ra1 Nc6 Nb1 Ne5 Ra6 Ng4 hxg4 Bg7 Ra1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Kf5 Kb4 c4 a5 b6 g2 c5 d3 g5 f3 g6 d2 g7 f6 Kg6 d5 b7 f5 b8B a4 c6 a3 c7 f2 Qc2 d1R Nf3 g1R+ Bg5 a2 Ne1 Qe7 Bh3 f1R Nd2 Ra7 Nc4 Rb1 Ne3 Rg3 N3g2 Bb7 c8Q Qc5 Bd6 Be7 b3 Ka3 b4 Rf2 b5 Nh6 b6 Rbb3 Rd1 a1R Rd2 Bf6 Bg4 Rf8 Kh7 Rh3 Qd3 Rf7 Kh8 f4 Qg3 Rff3 Bf5 Ng4 Bd3 Rb4 Qf5 Qc3 Qg6 Kb3 Rf1 R1a5 Rf2 Re3 Rf3 Re8+ Bf8 Rb8 Re3 Bc8 Bc5 Rad7 b7 Rb6 Bd6 Rb4 Rd1 Kb2 Rd2+ Ka1 Rf3 Rb3 Re3 Rba8 b8Q Bb7 Qc8 Rb8 Kg8 Bd4 Bd8 Bf6 Nc2+ Ka2 Kh8 Kb1 Nce1+
1bB2q2/NNQ1p3/N1b2BPb/k1bPbQr1/3P4/6n1/p1R5/1BKRbr2 b - - 0 1 illegal: No possible last move
2qn3Q/r1Bpb3/1Brr2B1/r3P3/4P3/3prRQ1/1Qb1P1K1/rNk2N1R b - - 0 1 legal: proof: f4 b5 h4 c5 a4 g5 axb5 gxh4 d3 e5 Qd2 e4 dxe4 Nc6 Qd4 Ne5 fxe5 cxd4 Kf2 a5 b4 f5 c4 Kf7 g4 Kg6 b6 h5 g5 a4 b5 a3 b7 h3 b8Q h2 c5 a2 b6 h4 c6 f4 b7 h3 c7 f3 Bf4 Nh6 Bc1 Nf7 Nd2 Be7 Bb2 Ra5 Kg3 f2 Qa7 Rh6 b8B Ba6 c8Q Bd3 Rd1 a1R Qac5 Bc2 Nb1 d3 Qd4 Qg8 Rc1 Nd8 Nf3 R1a4 Bg2 f1R Nfd2 Rf6 Rcf1 Rc6 Bc7 Ra7 Qb8 R4a5 Rf3 Kh5 g6 Kg5 g7 Rhd6 Nf1 Qc4 Rg1 h1R Bc3 h2 Bh3 Qa6 Kg2 Qb7 Bf5 Qc8 Bg6 Kg4 Rh3 Kf4 g8Q Ba4 Ng3 Bc2 Qdb4 Ke3 Qb2 Bg5 Rc1 Be7 Bb4 Re1 Rd1 h1R Bc5+ Rd4 Qh8 Rhf1 Q8b3 Rf3 B5b6 Ref1 Qbg8 Rh1 Re1 Rhf1 Na3 Kd2 Ra1 Re3 Nb1+ Kd1 Qgg7 Rh1 Nf1 Rdd5 Rf3 Rdd6 Bh7 Rb5 Qg3 Rba5 Qd4 Kc1 Bg6 Nf7 Qc3 Nd8 Qb2+ Kd1 Nfd2 Rc4 Na3+ Bb1 Rf5 Rc3 Rf3 Re1 Nf1 Rcc6 Nh2 Rf1 Qb5 Kd2 Qb2+ Bc2 Kh3 Rf2 Rh1 Rf1 Kg2 Ra1 Nf1+ Kd1 Qb4 Kc1 Nb1 R5a3 Qb5 R3a5 Qb2+
k3R2b/2BbpRb1/1r1NN2P/1Q2PP2/BB3N2/7n/1brpnrn1/1K3Q2 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 h3 fxg4 hxg4 h5 Bh6 h4 Bc1 Qb6 Bh6 Qg6 Bc1 Qh5 gxh5 Rh6 Qd3 Rh7 Qd1 Rh8 Kd2 Kd8 f4 Kc7 e4 Kb7 c4 d5 Kc2 g5 b4 a5 h6 h3 f5 g4 b6 g3 c5 g2 b5 d3+ Kb2 a4 Qb3 d4 Ra2 d2 Qd5+ Nc6 Na3 d1N+ Kb1 h2 Bd2 d3 Nc2 a3 Qc4 Rb8 Nh3 g1B Nf4 Nd4 c6+ Ka8 c7 Nf2 Bb4 Bd7 c8N d2 Nd6 Ne2 Nd4 Nh3 Nde6 Bd4 Rg1 h1R Rg7 Rh2 Rf7 Bfg7 Ra1 Bdf6 e5 Rf2 Ra2 Rc8 Qd3 Rc2 b7+ Ka7 b8B+ Ka8 Rb2 a2+ Ka1 Bg5 b6 Nf6 Bc7 Nd5 Rb3 Ne3 b7+ Ka7 Bg2 B5f6 Bc6 Ng2 Ba4 Rb8 Qb5 Bh8 Qd3 Bfg7 Qb5 Nc3 Qf1 Ne2 Rb1 Rc3 Kb2 a1B+ Ka2 Rc5 Rb2 Rc3 Kb1 Rc2 Rb3 Bb2 Rg3 Bf6 Rg8 Bfg7 Re8 Rc8 Bca5 R8c6 Bc7 Rb6 b8Q+ Ka6 Qd8 Ka7 Qc8 Bc6 Qd7 Bb5 Nc8+ Ka8 Qd3 Bc6 Qb5 Bd7 Nd6+
2Qb4/pnB1BKN1/6N1/b4b1n/k1Pp1n1b/r2Q1R1P/2R1P3/1rn1NR2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 g4 h5 Bg2 f5 Bh3 f4 Kf1 Qf6 Ke1 Qf5 gxf5 Rh7 Bg4 hxg4 Ra6 Rh6 Ra1 Rh8 Kf2 g5 b4 d5 f6 Kd7 c3 d3 b6 Kc6 f7 Kb5 b7 g3+ Kf3 d2 e6 g4+ Kg2 f3+ Kf1 f2 Kg2 f1N e7 Rh3 e8N Nf6 Nf3 Nh5 Ne5 Na6 b8B Bf5 Ba3 Nc5 Ng6 Nb7 Bc7 Be7 f8R Bd8 Ra2 Rb8 Rc2 Ka4 c4 d4 b5 Ne3+ Kg1 g2 Kf2 g3+ Kf3 g1B b6 Nd5 Ng7 Ndf4 Be7 Bf2 Rf1 Be1 Na3 Nc5 Qb1 d1N b7 Nf2 Qd1 Ba5 Qd3 Ra8 b8Q Nb7 Qc8 Rb8 Qc3 N2d3 Rf6 Ndc5 Qd3 Nb3 Rf7 Nc1 Rf8 Be4+ Kg4 g2 Kg5 g1B Kh6 Re3 h3 Bf2 Kh7 Bg3 Kg8 Bh4 Kf7 Rf3 Rb2 Re3 Nc2 Bf5 Ne1 Rg3 Rc2 Re3 Qd2 Ra3 Qd3 Nd6+ Kg8 Rb1 Rf6 Nb7 Kf7 Bg3 Re6 Bf2 Re3 Bh4 Ref3
3Q1N2/2PpK3/kRq4B/3q1b1q/1rn2qB1/NNqP1rP1/2p3qR/2QR4 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 b4 c5 Na3 c4 Nb1 Bc5 bxc5 Na6 c3 Nb4 cxb4 Ke7 Rh3 Kf8 Rh1 Ke8 Kf2 f5 Kf3 a5 e4 h5 e5 h3 d3 h4 e6 h2 c6 c3 b6 h3 g3 c2 b5 a4 b7 a3 b8R a2 e7 Ra4 b6 Qc7 b7 Nf6 Nc3 Nd5 Qe1 Rb4 Nge2 Rf8 Ba3 Ne3 Na4 Nc4 Rg1 h1Q+ Rg2 h2 Rd1 a1Q Nd4 Qc3 Nb2 Qa5 Nb3 Qd5+ Kf2 f3 c7 f4 Be2 Kf7 e8N Ke6 Ng7+ Kd6 Qf1 Kc6 Ne6 Kb6 Qg1 Rf6 Nf8 Ka6 Qf1 Rb5 Be7 Rb4 Qg1 Rf7 Bg5 Rf6 Bh6 Rf7 Kf1 f2 Bg4 Qh5 Ke2 Rf6 Kf3 f1Q+ Ke4 f3 Bf5 f2 Kd5 Qfe2 Kc5 f1Q Qe3 Qef3 Qc1 Qf4 Re2 Qh1f3 Red2 h1Q Rh2 Qf7 Be6 Qf1g2 Bg4 Qh5+ Bg5 Ne5+ Nc4 Rf5 Kd6 Qc6+ Ke7 Qgd5 Qe3 Qhg2 Na3 Nc4 Qe1 Qff2 Bh6 Rf3 Qd2 Qfd4 Qc1 Qf4 Ra8+ Kb6 b8Q+ Bb7 Nb1 Kb5 Qd8 Kb6 Rc8 Ka6 Rb8 Qcg6 Qd2 Qa5 Rdh1 Be4 Na3 Bf5 Qc1 Qd5 Rd1 Qgc6 Rb6+
B2r4/2b1ppk1/1b1P1Rb1/1bBn1n1Q/BQ3PNN/R1P3Nb/1b1K4/3b4 b - - 0 1 legal: proof: d4 c5 e4 d5 a4 b5 axb5 cxd4 Ra5 d3 Ra4 d4 Ra1 Qd5 exd5 Ba6 Kd2 Bb7 Ke1 Bc8 h4 g5 Bf4 a5 Ra3 g4 Bc1 Ra7 Ra1 Rb7 Kd2 Rb6 Ke1 Rg6 Bf4 Rg7 Bc1 Rg5 hxg5 Bf5 Rh3 Be4 Rh1 Bxg2 b4 h5 f4 d2+ Ke2 g3 b6 h4 g6 a4 b5 h3 b7 h2 b6 a3 g7 a2 c3 Nh6 g8B Nd7 b8N Bg7 b7 Kf8 Ba3 Nf5 Bh7 Nf6 Nf3 Bh3 Nc6 g2 Bc5 g1B Bg2 Be3 Re1 h1B Nce5 Rg8 Nh4 d3+ Kf1 Bh8 b8Q+ Kg7 Qh5 d1B Nd2 Bc2 Qb4 Rd8 Ne4 d2 Ng3 d1B Ng4 Bd3+ Re2 Bb5 Ke1 Bg1 Be4 B1g2 Bc2 Be4 Ba4 Bd4 Kd2 Bg1 Bd6 Bb6 Bc5 Bc7 d6 Nd5 Re1 Bb1 Re6 Be4 Rc1 a1B Rf6 Bb2 Bg6 Nfe3 Bh7 Bg6 Ra1 Nf5 Ra3 Kf8 Re6 Be5 Rf6 Kg7 Bg1 Bd4 Be3 Nh6 Bf2 Bdb6 Bc5 Bgc2 Bf5 Be4 Bd7 Bg6 Bc6 Nf5 Ba8
qb1q3B/2qbk2p/Pq6/r4Q1R/1PP2NN1/rB6/3N1Qrp/2Q1bK1R b - - 0 1 legal: proof: h4 c5 e4 g5 d4 gxh4 a3 cxd4 Rh3 f5 exf5 b5 Rh2 b4 Rh1 b3 Be2 a5 Ra2 a4 Bf1 Na6 Ra1 Nb4 axb4 a3 Ba6 a2 Bc4 Nh6 Bd5 Ng4 Bc4 Ne3 Be2 Nc4 Bf1 Na3 bxa3 Qb6 Qg4 Qc7 Qd1 Qd8 f4 d5 c4 e5 g4 e4 f6 e3 f7+ Ke7 a4 e2 g5 d3 g6 b2 a5 h3 f5 h2 g7 d4 Nd2 b1Q Nh3 Qb6 Bb2 Bd7 Nf4 Rg8 Qc1 Ra7 Kf2 e1B+ Kg2 Qc2 Be2 Qa4 Bd1 Qac6+ Kf1 Qa8 Bb3 Ra6 Rb1 a1R Bc3 Ra3 f6+ Kd8 Rb2 Bd6 Ra2 Bb8 f8Q+ Be8 Qd6+ Bd7 f7 Ra7 Qc6 Ke7 Qd5 Qc7 Qf5 Ra6 Nb1 d2 Bb2 d1Q Nd2 d3 Ra1 Rg6 a6 Rg2 Ra2 Rc8 Ra1 Qh5 Bd4 Qh6 g8N+ Kd6 Nf6 Ke7 Ng4 Qhb6 Bb2 Rg8 Bh8 Rg5 Nf3 d2 Ra2 d1Q Nd2 Qc2 Ra1 Qb2 Ra2 Qg7 Ra1 Qf8 Ra2 Qe8 f8Q+ Kd8 Q8c5 Qf8 Qf2 Ke7 Rc2 Qfd8 Rc3 Rh5 Rh3 Rg5 Qe4+ Re5 Qf5 Rea5 Rh5
8/Q4bp1/3kpB2/3B4/K2b1Rnq/2PQRPnP/Bbr1Qp2/n1r1N1N1 b - - 0 1 legal: proof: f4 c5 a4 h5 d4 cxd4 g4 hxg4 f5 b5 axb5 Bb7 f6 Bc8 Kd2 a5 Bh3 e6 Na3 Qe7 Bf1 Rh3 Ra2 Rf3 Bg2 Bb7 fxe7 Ra6 Nb1 f5 Nc3 f4 Nd5 Bc8 Ke1 Rd6 Kd2 Kf7 Nc3 Rd5 Ra1 Rh5 Nb1 Rh8 Bf1 Ra3 Bh3 f3 Bg2 f2 Bf1 Rf3 exf3 Rh6 Nh3 Rh4 Ng1 Rh8 e8B+ Ke7 b4 d5 b6 g3 h3 a4 b7 a3 b5 a2 b6 g2 Kd3 Nc6 b8Q Ne5+ Kd2 d3 Kc3 d4+ Kb3 d2 b7 d3 Ba4 Nh6 Qe2 d1R Qe3 d2 Qa8 Kd6 Qaa7 Nf5 Bb2 Bd7 Bc4 Rc1 Qe2 d1Q Na3 Ng3 Bd5 Ng4 Bf6 Qd4 c3 Be8 Qd3 Bf7 Nc2 Be7 Ne1 Ra8 Rb1 a1N+ Ka3 Qf4 Bab3 Qh6 Bbc4 Qh4 Rb4 Rb8 Ka4 Rc2 Ne2 g1B Ba2 Bh2 Ng1 Rd8 Rf4 Rd7 Bg5 Bf6 Qae3 Bd4 Bf6 Rd8 Qee2 Ra8+ Kb5 Ra6 Kb4 Rb6+ Ka4 Rb1 Ka3 Rbc1 b8Q+ Kc5 Qa7+ Kd6 Qdd2 Bc5+ Ka4 Ba3 Qdd3 Bb2 Re4 Nf5 Re3 Be5 Rh2 Bd4 Rg2 Nh2 Rg4 Ng3 Rge4 Ng4 Rf4
r4Q2/r3PK2/1n1RP3/B4pb1/1Np2R1r/1q1R2B1/N1Qp1BnP/bn4k1 b - - 0 1 legal: proof: d4 b5 c4 d5 a4 dxc4 axb5 h5 g4 e6 gxh5 Ba6 Qd2 Bb7 Qd1 Bc8 e4 Bd6 d5 Ba3 Bg2 Be7 d6 Ba6 e5 Bf8 Bd5 exd5 f3 Bc8 Ne2 Bf5 Ng1 Be4 fxe4 Qg5 Ra3 Qe7 Ra1 Qd8 Kf2 Kd7 Ke3 Ke6 Kd4 f5 b4 g5 d7 a5 b6 g4 b7 c3 b5 a4 h6 a3 h7 a2 b6 c2 Bf4 c1R Bg3 Nh6 Na3 Be7 Qc2 Bg5 Be1 g3 Ne2 g2 Rf1 g1N Nc3 Qg8 d8R Ng4 Rf4 Nd7 b8Q Ne3 b7 Nb6 Rb1 a1B Rb3 Ng2 Rd6+ Kf7 e6+ Kf6 Kc5 Ke5 e7 d4 Qf8 d3 b8B d2 Na2 Ne2 Rbd3 Qb3 Kc6 Nc3 Kc5 Rg8 h8B+ Rg7 Kc6 Nb1 Kc5 Bf6 Kc6 Rh7 Bg7 Rh4 Bh8 Nc4 Kd7 c5 Ke8 Nb6 Bg7 c4 Kf7 Rd1 Bc7 Nd5 Ba5 Nb6 Nb5 Ra7 Nc7 Ra8 Bh6 Bg5 Nd5 Rc1 Rh3 Kd4 e5+ Kc5 e6 Ra7 Rf1 Kd4 Rd3+ Ke4 Ndb4 Ra8 R3d4+ Ke3 Rff4 Ke2 Rd3 Ra7 Rfd4 Kf1 Rf4+ Kg1 Bg7 Rd1 Be5 Ra8 Bg3 Rf1 Be1 Rf3 Rg4 Rfh3 B5g3 Ra7 Re4 Rh8 Rf4 R3h4 Qg7 Re8 Qf8 Rea8 Bef2+
n3R3/1P2pK2/1bpB3r/1q1QQPpn/1r2r3/1N1k1Pbb/2N3B1/QR2B3 b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 e4 f5 exf5 d5 cxd5 b6 a4 b5 axb5 axb4 Ke2 Kf7 Ke3 Kf6 Kf4 c6 d4 g6 h4 g3 f3 b3 h5 b2 d6 g2 h6 Na6 d5 Nb8 d7 Qb6 d8Q Qa6 h7 Qa3 b6 Nd7 d6 Ba6 b7 Qb3 Ne2 g1B Nd4 Nb6 d7 Bg7 Bg2 Bf1 Nc2 Qb5 Nd2 b1R Nb3 g5+ Kg4 Ke5 Kh5 Bf2 Kg6 Ra4 Ba3 Nf6 Kf7 Bg3 Bb4 Nh5 Be1 Rf4 Ra8 Re4 Rc8 Rb2 Qa1 Na8 Qda5 Kf4 d8Q Bd4 Qd5 Bb6 Re8 Rb1 Nd2 Rbb4 Nb3 Rg8 h8B Rg6 Bd4 Rd6 Bc5 Rh6 Ncd4 Ke3 Bd6 Kd3 Qe5 Qa4 Qad5 Qb5 Bc3 Be2 Rb1 Bf1 Be1 Ra4 Bh1 Bh3 Bg2 Rb4 Nc2+
6Nq/np3Pp1/n1Rbb3/K1B1Q2R/P1Q2Qn1/b2R2r1/2P1r1Bp/1k3N2 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Na6 b4 axb4 f6 Nb8 g3 Na6 g4 Nb8 f4 Ra7 f5 Ra3 g5 Qb6 h4 Rh3 f7+ Kd8 h5 Qf6 h6 Rxh6 gxf6 Rh2 a4 Kc7 c6 Kb6 c7 Kc5 Qf3 Kd4 Bh6 d5 Qg3 e5 Qf3 b3 Qe2 e4 Kd2 b2 Ra2 e3+ Kd1 Na6 Bh3 Ba3 f8R Ne7 f7 Nc6 f6 Be6 c8Q Na7 Nd2 Bd6 Bf4 h5 Nf1 h4 Bg2 h3 Ra3 Rh6 Rc3 Rg6 Rc6 Rg3 Rd8 Ba3 Qe1 e2+ Kd2 b1Q f8Q Qb6 Rd7 Qd8 Bd6 Qe8 Qf7 Qh8 Bc5+ Kc4 Qff8 d4 Nf3 d3 f7 Nb4 Ng5 Na6 Be4 Rf2 Qd6 Rfg2 Qf4 h2 Rg1 Rf2 Nh7 Rfg2 Qa1 Rf2 Nf6 e1B+ Kd1 d2 Rd3 Re2 Ng8 Bf2 Qae5 Bd4 Rg2 Bc3 Rg1 Ba5 Rg2 Bc7 Rg1 Bd6 Rg2 Rge3 Rg5 Rf3 Rh5 Rg3 Rd4+ Kc3 Bg2 Kb2 Rd3+ Kb1 Qc7 Rf2 Qc4 Rf5 Ke2 d1N Kd2 Ne3 Kc3 Rf2 Qef4 Rd2 Qe7 Re2 Qef6 Nb8 Q6e5 Ng4 Kb3 Bb2 Kb4 Na6+ Ka5 Bc1 Re3 Ba3 Rd3
5K1b/RnB4B/Q1n1qb1N/4Q1P1/qrN1PB1p/r5RP/3p2p1/n3Nk2 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 g4 e5 a4 exd4 axb5 Qg5 Ra2 Qf6 Ra1 Qd8 f3 fxg4 Na3 g5 Be3 g3 Nb1 g4 Bc1 g2 Kd2 g3 Ke1 Bb7 Ra6 Be4 Ra4 Bf5 Ra1 Bg4 fxg4 Qc8 Ba3 Qc7 Bc1 Qd8 Kd2 Kf7 Kd3 Kg6 Kc4 a5 Kd5 h5 e4 h4 c4 a4 b6 a3 g5 d3 b7 a2 c6 d2 c5 Nh6 c7 Nf5 c8N Bg7 c6 Qe7 c7 Nd6 Na3 Nc6 b8B Bf6 Bc4 Nb7 Nf3 Kh5 Rg1 Kg4 Nd6 Kh3 c8Q Ra7 Qa4 d1Q+ Bd2 Qc2 Qa6 Qa4 Bc7 Rd8 Qa8 Rb8 Nf5 d6 Bf4 Qe8 Rh1 g1B Ne1 Bgd4 Rg1 Qg6 Ke6 d5 Rg2 Bc3 Kd7 d4 Nh6 d3 Bg8 d2 Nc4 Bh8 Bh7 Bcf6 Ke6 Qf5+ Kf7 Qc8 Rd1 a1N Qb5 Ra5 Qaa6 Qg4 Qe5 Qe6+ Kg6 Qa2 Rb1 Ra3 Rb2 Qb3 Ra2 Qa4 Rg1 Nbd8 Rg2 Rb4 Rg1 Nb7 Rg2 Qg4 Kf7 Qd7+ Kf8 Qe6 Re2 Na7 Re3 Nc6 Nd3 Kg2 h3 Kf1 Ne1 g2 Rg3 Rd3 Ra3 Rf3 Rd3 Re3 Rd8 Rd3 Ra8 Ra3 Ra7
R1N1Rb2/4nq2/3B3r/RQ1NP2p/1rn5/p3P3/KQpqB1P1/3br1kB b - - 0 1 illegal: Other
3k4/Kn4qN/p1RRB3/1r6/1bNRbPBp/P2N2P1/q1bpn3/2Q1rQ2 b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 g5 b4 c5 bxc5 e5 d4 b4 dxe5 b3 h4 gxh4 Na3 b2 Bd2 Nf6 Rc1 Ng8 Rc3 b1Q Be3 Qa1 Bg5 Qa5 Bd8 Qxd8 Kd2 h5 Kd3 d5 Kd4 h3 f4 h2 g3 h4 c6 a6 f6 Be6 c5 Ra7 c7 Qc1 c8R Ra8 f7+ Ke7 c6 Bh6 Kc5 d4 f8N d3 c7 Bb3 Kb6 Qd2 e6 Qd7 Be2 Nc6 Bg4 Nf6 Rd8 Bc2 c8Q Na5 Nh3 Ne4 Qf1 Nb7 Rc6 Rb8 Nf2 Nc3 Nc4 Ne2 Nh7 Re8 a3 Bf8 Ka7 Qc7 Rg1 h1B Rdd6 Be4 Rd4 Qe5 Rcd6 Qg7 Rh1 Qa5 Qc6 d2 Nd3 Qd5 Qc5 Rec8 Rg1 Ke8 e7 Rc6 Rh1 Rb6 Qc7 Rb1 Rg1 Re1 Qc5 Kf7 e8B+ Ke7 Bed7 Qdg8 Qa5 Qd5 Qc3 Kd8 Qb2 Na5 Qc1 Rb5 Rg2 Qdf7 Rf2 Nb7 Rf3 Qd5 Rc6 Bb4 Re3 Bh1 Ree6 Be4 Red6 Qdf7 Nce5 Qb3 Nc4 Qa2 Bde6+
7R/2Q1P2B/4Rqn1/1q3Nb1/k1pQnBNP/P6K/1prp1b1B/2r2Nb1 b - - 0 1 legal: proof: g4 h5 gxh5 c5 d4 e5 f4 b6 fxe5 Bb7 b4 a5 d5 axb4 c3 Bc6 dxc6 bxc3 Kf2 g5 Kg3 d5 h4 f5 e4 d4 c7 Kd7 c8N Kc6 h6 b5 a3 d3 e6 c2 h7 g4 e5 f4+ Kg2 g3 e7 b4 e8Q+ Nd7 e6 Kb5 Qg4 f3+ Kh3 f2 Qf7 g2 Nd2 b3 Qfg7 b2 Ngf3 g1B Nh2 Qf6 Qd4 Ne5 Ne7 Ng6 Nf5 Rc8 Ng4 Rc6 Bg2 f1Q Qc7 Bd6 e7 Bg3 Rb1 B3f2 Ra1 Qe2 Nf1 Qee5 Bg5 c1B Bf4 Bd2 Bh2 Bg5 Be4 d2 Re1 Qd5 Bb1 Qc4 Bf4 Ka4 Re6 Qb4 Rh2 Qc4 Rg2 Qb4 Qdd8 Qb5 Be4 Qf8 Qd5 Nf6 Qd3 Rg8 h8B Qf7 Qd5 Rc8 Bd3 Ne4 Bhe5 Qg7 Bh2 Qf6 Bef4 Rd6 Qe5 Rd4 Bb1 Rc4 Rg3 Rc1 Rd3 Rc2 Rd8 c4 Rg8 Rd8 Rh8 Rd3+ Nge3 Rc1 Qd4 Rdc3 Bd3 R3c2 Ng4 Re1 Qcd7 Rd1 Qc7 Rdc1 Qb8 Nd6 Nfh6 Nf8 Bh7 Ne4 Qc7 Ng6 Nf5
1N5B/Q1pnp1qk/1RB1KP1p/3PQn2/Rq1b2r1/1rrB2P1/1N1b3N/8 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 h4 gxh4 b3 a5 b6 a4 Qe2 a3 Qf3 Bd7 Qd1 Ba4 bxa4 Qc8 Nc3 Qd7 Nb1 Qd8 Ke2 Kf7 Ke3 Kg7 Kd4 a2 Ke5 e3 f4 e2 d4 e1B d6 h3 d5 h2 g3 h6 f5 Ba5 b7 Rh7 d7 Bb6 a5 Nc6+ Ke6 Ba7 b8N Nf6 a6 Be3 a7 Kg8 Nc3 Bd2 Qe2 Rg7 Nd1 Rg4 Nb2 Bg7 Nf3 Kh7 Qe5 Qc8 Bc4 Qb7 d8Q Qb4 Bd3 Nd7 Rf1 h1R Nh2 Bh8 Rf4 Bf6 Rb1 a1Q Qc8 Re1 Qa6 Re4 Qb6 Rc4 Re4 Rc3 Qe3 Qba5 Ra4 Qb4 Qf2 Be1 Be3 Bd2 Bd4 Bh8 Na6 Rb8 a8B Qba3 Qfe3 Rbb3 Nb8 Qb4 Qf2 Na7 Bc6 Nc8 Qee3 Bg7 Bf6 Nd6 Qe5 Bf8 Bh8 Bg7 Qa7 Bf6 Qee3 Bd4 Qe5 Qaa3 Nd1 Qc1 f6+ Nf5 Nb2 Qd1 Qa8 Qe2 Qa5 Qe3 Qa7 Qg5 Ra6 Qg7 Rb6 Qc5 Ra1 Qb4 Ra4
3Qq3/kp1p1r1r/b3R1KP/2P1RN2/1NQ2p2/nrP1B2n/B1b5/3B1q1N b - - 0 1 illegal: No proof kernel forced: wxLB
Q1Q1Rn1r/Pb1p1B1B/6PP/5pr1/N1q1RK1p/1N6/k1qn4/bb1N2R1 b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 f4 axb4 fxe5 Be7 Bd2 Bd6 Bc1 Bf8 h4 g5 Qd3 h6 Qh7 Ne7 Bf4 Ng8 Bg3 Be7 h5 Bf8 Bh4 gxh4 Qxh6 Qb6 Qh7 Qd8 Kf2 Ke7 Ke3 Ke6 c4 b5 a4 f6 g4 b3 c6 b4 c5 Kd5 e6 Kc4 g5 b2 c7 Kb3 h6 Na6 e7 Rb8 e8R Ra8 a5 Bd6 c6 Ne7 Nd2+ Kc3 Qg8 b1Q Ra4 Kb2 Nb3 Qa1 Nh3 Qd1 Nf2 Nb8 a6 Ng6 a7 Qd5 Rg1 Bb7 c8Q Na6 c7 Qc4 Nd1+ Kb1 Bh3 Nc5 Bf5+ Ne4 Qd5 Nf8 Bh7 Rb8 g6 Be5 Kf3 Bd4 Kf4 Nd2 e4 Ba1 Qc6 Qc2 e5 Qe7 e6 Qec5 e7 Q5c4+ Nd4 b3 Qg2 Ba6 Qa8 b2 Rb4 Bb7 Ra4 Qc6 Nb3 f5 Re4 Q6c4 Rd8 Ka2 e8B b1B Bf7 Bd5 Re8 Rb4 Qcb7 Ra4 c8N Ra3 Qbb8 Bb7 Nb6 Ra4 Qc8 Ra3 Na5 Rg3 Na4 Rg5 Nb3
5q2/p3R2b/B1PNR1QP/5RP1/n1rnK2b/3np2r/3qBp1B/1k1N3Q b - - 0 1 legal: proof: f4 g5 fxg5 c5 d4 cxd4 a4 b5 axb5 h5 e3 dxe3 Qxh5 Na6 Qh7 Nb8 Ke2 d5 Kf3 Kd7 c4 Kd6 g4 Kc5 h4 Kd4 b4 e5 b6 f5 h5 e2 c5 Kd3 b7 Kc2 b5 e1Q h6 d4 c6 d3 g6 f4 b6 d2 g7+ Bf5 Be2 d1N Nc3 Qed2 Nb5 Be7 Rh5 Qf8 Nh3 Na6 b8R Nf2 b7 Nd3 Nf2 Bh4 Nd1 Nac5 Re8 Rb8 Nd6 Ne7 g8B Na4 Bc4 Rg8 Qg6 Rg7 Ra3 Kb1 Ba6 Rd8 Bb2 Rd7 b8Q e4+ Kg2 Rb7 Be5 Rb3 Qb5 Rb4 Qd5 e3 Kf3 Rc4 Rb3+ Ndb2 Rb6 Bd3 Rbb8 Nf5 Rb7 Rf7 Rbe7 Nd4+ Kg2 Bc2 Rf5 Nd3 g5 Rf6 Re6 Rf7 R8e7 f3+ Kf1 f2 Qh1 Rf6 Kg2 Rf7 Bh2 Rf6 Ra5 Rf3 Rf5 Rh3 Bg3 Nb5 Kf3 Nd4+ Ke4 Nb5+ Kd5 Qe1 Rf3 Nc1 Qd3 Qd2 Bh2 Nd4 Qh7 Bg6 Rf5 Nd3 Qg7 Bh7 Ke4 Qe8 Qf7 Qf8 Qg6
Qr6/p3Rpb1/rNpR1B2/4K1P1/1bPQn2B/n3N2q/2PnBk2/1nR5 b - - 0 1 illegal: No possible last move
4R2k/8/1Prn3q/2PKN2P/6bQ/p1RppBBr/1Qr1N2q/RN4nq b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 d4 cxd4 exf5 Bb7 Nf3 Ba6 Ng1 Bc8 g3 gxh4 Rh3 h5 Rh2 h3 Rh1 h2 Bh6 h4 Qe2 h3 Bc1 Bg7 Qg4 Bf6 Qd1 Bh4 gxh4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 Kf8 Kd3 Kg7 Ke4 d5+ Ke5 a5 b4 d3 c4 a4 f4 d2 b6 d4 b5 d3 c5 a3 b7 Nh6 Qa4 d1R Bg2 Rd2 Ne2 Qf8 Bf3 Nd7+ Kd5 e5 b8Q e4 f6+ Kg8 f5 e3 Bb2 Nf7 Be5 Qh6 Rc1 h1Q Bg3 h2 Rc3 Nd6 f7+ Kg7 f8R Ne5 b6 Rc2 f6+ Kh7 f7 Bg4 Qd8 Rc8 Qb3 Rc6 Re8 Qg1 Qb4 h1Q Qb2 Qgh2 f8N+ Kg7 Nd7 Rh7 Bg2 Nf3 Ne5 Ng1 Bf3 Rh8 Re6 Rh7 Qg5+ Kh8 h5 Rf7 Qh4 Rf8 Bg2 Rf3 Re8+ Kh7 Bf2 Rh3 Bg3 Kg7 Bf3 Kh7 Re7+ Kh8 Re8+
2bN2R1/4n3/pp1P3Q/nq3RBq/b1N3P1/1QPB1q1p/1nrR4/1kB3K1 b - - 0 1 legal: proof: b4 d5 g4 f5 e4 fxg4 exd5 c5 Nh3 cxb4 Nf4 g3 Ne2 g2 Nf4 g1N Ng2 Qa5 Be2 Qc7 Bf1 Qd8 a4 g5 a5 g4 a6 b6 Ne3 g3 Ra4 g2 Ng4 Bh6 Ra3 Bf4 Ra1 Bg3 hxg3 Nd7 Nh2 Rb8 Bb2 Rb7 axb7 Nb8 Ba3 Qc7 Bc1 Qd8 d4 Kf7 f4 Kf6 Kf2 Kf5 c3 Ke4 d6 e5 g4 h5 d7 b3 f5 a6 f6 h4 d5 b2 d6 Nf3 f7 g1Q+ Ke2 Qf8 d8R Nc6 b8Q Qc5 Qa7 Qb5+ Kf2 Nge7 Ra3 Nd2 Rg1 Nc4 Ra2 N6a5 Na3 b1B Qb3 Bc2 Nf3 Nb2 Nc4 Qh6 f8B Qh5 Bg7 h3 Nd4 Re8 Rg2 Rf8+ Kg1 Rf2 Bg5 Bd1 Nc6 Rc2 Re2+ Kd3 Rg8 e4 B7h6 e3 Rf2+ e2 Nd8 Rc1 Qb4 Kc2 Qb3+ Kb1 Rf5 e1Q Qb8 Qe4 Bd3+ Rc2 Bc1 Bf3 Bhg5 Qf4 Qc7 Bc6 Qd7 Qe4 Qe6 Qf3 Qh6 Be8 Ra4 Qbd5 Rb4 Ba4 Rb5 Qc6 Rbe5 Qcd5 Re2 Qb5 Rd2
Q7/Kpb1Qp2/3N3k/P1Bnn1N1/RB2r3/p3q1bb/P2RPQ2/q5Rn b - - 0 1 legal: proof: f4 e5 c4 exf4 g4 d5 cxd5 a5 b4 h5 gxh5 c6 Bh3 a4 Bd7+ Ke7 Be8 Ra5 bxa5 Rh6 Bd7 Rh8 Bf5 Ke8 Bd3 Ba3 Ba6 Bf8 Bb5 cxb5 Kf2 g5 d4 b4 h4 a3 h6 b3 d6 g4 d5 b2 h5 f3 Ke3 f2 Kd4 f1Q Kc5 g3 h7 g2 h6 Qf2+ Be3 Bf5 Qe1 Qf6 Kb6 Qg3 Nh3 g1B Ka7 Bg4 Ng5 Bh2 Nd2 b1N Qf2 Ne7 Bc5 Bh3 Nc4 Nc3 Rag1 Qe3 Rg4 Bg3 Rg1 Rg8 h8Q Nf5 h7 Nd7 Rf4 Ne5 d7+ Kd8 Nd6 Ke7 d8R Bg7 Qh2 Re8 Qf2 Bf8 Rh4 Qg7 Rd7+ Kf6 Ra4 Kg6 Qg8 Re6 h8B Kh6 Rd8 Qf6 Rd7 Be7 Qa8 Bd8 Bg7+ Kg6 Bf8 Bc7 Nb5 Re8 d6 Nd5 Rd8 Qg7 d7 Kh6 Be7 Nd3 Nd6 Qa1 Rc8 Ne5 d8Q Bf4 Qd7 Ng3 Rd8 Nh1 Bf8+ Kg6 Qe7 Bg3 Bg7 Kh5 Bh8 Kh6 Bf6 Nf3 Bc3 Ne5 Bb4 Ng4 Qd7 Re4 Qe7 Ne5 Nc4 Nf4 Rd2 Nd5 Nd6
2R1nN1B/3QB3/pp1b2n1/1RRKNqbQ/PP3k1Q/1r3n2/n3Pp2/1n6 b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 g4 c6 Bg2 c5 cxd5 c4 Be4 f3 Bc2 Qb6 Bb3 cxb3 Bb2 Qd6 Bc1 Qd8 h3 f5 d6 g5 Qc2 f4 Rh2 b6 Rh1 a6 Qd1 Bf5 gxf5 g4 Qc2 g3 Qd1 Ra7 Bb2 Rg7 Bc1 Rg4 hxg4 Bh6 Rh3 Bg7 Rh1 Bf8 d4 Kf7 Kd2 Kf6 Kc3 Kg5 Kc4 h5 a4 h4 d5 h3 f6 g2 d7 h2 d6 b2 f7 f2 Nd2 f1N Nb3 b1N Kd5 Rh7 Nc5 Nfd2 Bb2 f3 Bh8 f2 Nf3+ Kf4 g5 Bh6 f8B Qc8 d8R Qf5+ Ne5 Nc6 g6 Bg5 g7 Nf3 d7 Rh3 Be7 Rg3 Rg1 h1N Rc8 Rh3 d8Q Ng3 Qd3 Ne4 Nd7 Rg3 Rh1 g1B Rh5 Bh2 Nf8 Rh3 Qd4 Bg3 Qd7 Nf6+ Kc4 Bh2 g8Q Ne8 Qh7 Rg3 Q4d5 Nec3 Ra2 Rh3 Rc2 Na2 Qc5 Ne1 Qh6 Rb3 Kd5 Nf3 Qa5 Nh4 Rc5 Ng6 Rh3 Nd4 Qh4+ Qg4 Rhc3 Nf3 Rb5 Bg3 R3c5 Bh2 Qh7 Qf5 Qh4+ Ke3 Rc1 Nc7+ Kc4 Ra3 Rd5 Bgf4 Nc6 Qe4+ Rd4 Rb3 Qah5 Qf5 Rd5 Ne8 Rb5 Bg5 Rc2 Bd6 Ne5 Rb2 Kd5 Rb3 Qh3 Kf4 R2c5 Rc3 Qh1 Rb3 Q1h4+
qr5n/4pQPr/kN4r1/1rPR1NQ1/1Rp5/1P2Q2B/b3pB2/rB2n1K1 b - - 0 1 legal: proof: h4 g5 hxg5 b5 e4 f5 a3 b4 axb4 fxe4 c4 d5 Qe2 c5 Qf3 Bg7 Qd1 Bd4 Nf3 dxc4 Ng1 c3 Nf3 c4 Ng1 Bc5 bxc5 Qc7 Ra3 Qd6 Ra1 Qd8 f4 Kd7 Kf2 Kc6 g4 Kb7 d4 a5 g6 h5 f5 a4 g7 a3 f6 h4 f7 a2 f8Q h3 b3 h2 d5 c2 g5 Ka6 g6 Qc7 d6 Rh6 d7 Qb7 d8Q Nc6 Q8d3 Be6 Qg4 Nd4 Qe3 Rb8 Qf7 Qa8 Nc3 Nf3 Qgg5 Bf5 Nd5 Ne1 Nf3 Rh8 Bd2 c1R Bh3 Nh6 g8B Rb5 Bh7 Rhb8 g7 Bg6 Rf1 h1R Nb6 Rd1 Ba5 Rd6 Nd4 Re6 Rd1 a1R Nf5 Rh2+ Kg1 Rf6 Qe6 Nf7 Rd5 Nh8 Qf7 Rc6 Rf2 Re6 Ra2 Rc6 Qc3 e3 Ra4 e2 Qce3 Rd6 Rb4 Rc6 Nd4 Bb1 Bc2 Ba2 Nf5 Rg6 Bb1 Rc8 Na4 Rd8 Bc7 Rdb8 Bg3 Qb7 Nb6 Qa8 Bg2 Rh4 Bh3 Rh7 Bf2
2b1KQ1N/1P1Pb1rp/5NR1/nBP1b3/1p1R2p1/Q2Q1b1B/4B1k1/b1n4q b - - 0 1 illegal: No possible last move
2N1b1k1/3rp2p/R1np2B1/1rQ1R3/3rPQ2/bbqNP3/1rP3B1/1RK2N2 b - - 0 1 legal: proof: a4 b5 e4 c5 h4 a5 b4 g5 hxg5 Na6 d4 cxd4 Ba3 Nc7 axb5 Na6 b6 Nc7 b5 Nd5 Bb4 Ne3 fxe3 axb4 Kd2 f5 g4 Kf7 b7 d3 b8Q b3 b6 f4 b7 b2 Qe5 d6 b8N f3 Qc5 f2 Nf3 Ra5 Bg2 f1B Nc6 Qc7 Na7 Be6 Ne1 Bb3 Qf3+ Nf6 g6+ Kg8 g5 Bg7 Qf4 Ng4 Nc8 Rb5 Ra6 Ne5 Rg1 Bf6 g7 Nc6 Kd1 d2 Nd3 Qa5 Rh1 Qc3 Rg1 Kf7 g8B+ Kg7 Bf7 Rd8 g6 Rd7 Be8 Kg8 g7 Be5 Bg6 Bd4 Qh5 Bc5 Rh1 Bb4 Qc5 Ba3 Rh5 Bf7 Re5 Be8 Nb4 Bc4 Nd3 Bd5 Bf5 Kf7 g8R Bb3 Rg3 Kf8 Bg6+ Kg8 Rf3 Ba4 Rf1 Bb3 Ke2 d1R Nd2 b1R Rg1 Rb2 Nf1 Rd2+ Ke1 Rf2+ Kd1 Re2 Kc1 Rd2 Ne1 Rd5 Nd3 Rd4 Nd2 Rb8 Kd1 Qa5 Re1 Qb4 Nf1 Qc4 Kd2 Rb5 Rb1 Qc3+ Kc1
1r1bR3/pnnk1B1p/3n4/3rN2N/2RqBQ2/P3rn2/Q1pPR2P/4Q2K b - - 0 1 legal: proof: e4 b5 b4 d5 exd5 c5 f4 g5 fxg5 Na6 c4 bxc4 b5 c3 b6 Rb8 Bb2 cxb2 b7 Ra8 bxc8Q Rb8 Qb7 Rc8 Qa8 Rc6 Kf2 e5 g4 f5 Kg2 c4 d6 f4 g6 c3 g7 c2 g5 e4 g6 e3 Na3 b1N Nh3 e2 Qb8 Nh6 g8B Kd7 g7 Be7 Nc4 Nc7 Bf7 Na3 g8Q Rc5 Qe1 f3+ Kg1 Bg5 Bg2 Nf5 Nf4 Rd5 Nh5 Nab5 a3 Qf6 Rb1 Qa1 Qbf8 Bd8 Rb4 Qe5 Qh6 Qa1 Qf4 Qd4+ Qf2 e1N Q2e3 Kc6 d7 Nfd6 Ra4 Nb7 Ne5+ Kd6 Rc4 Ke7 Bf1 N5d6 Bd3 Nc5 Be4 f2+ Kf1 Nf3 Kg2 f1R Qe1 Ncb7 Rg1 Ng5 Kh1 Rf3 Rg2 Re3 Re2 Nf3 Qgg1 Rb3 Qa1 Rf8 Qa2 Re3 Qe1 Rg8 Bfg6 Ke6 Be8 Bf6 B8g6 Rb8 d8R Bg5 Rg8 Bd8 Bf7+ Ke7 Ng6+ Kd7 Rf8 Na8 Re8 Nc7 Ne5+
bQ1R1Q2/3Qn2k/r3qq1n/4p2b/qN5p/PRNP3B/p3Rq1P/2K1B3 b - - 0 1 legal: proof: e4 a5 c4 g5 f4 d5 fxg5 dxe4 a4 b5 Ne2 bxc4 Ng1 Ra7 Ne2 Rb7 Ra2 Rb5 axb5 a4 Rg1 a3 Rh1 Bg7 Ra1 a2 Ng1 Bc3 Qb3 Bb4 Qd1 Ba3 bxa3 Qd7 Qf3 Qd4 Qd1 Qd8 g4 Kf8 g6 Kg7 g5 f5 d3 c5 Kd2 e5 b6 h5 b7 h4 Be2 f4 Bh5 e3+ Kc2 c3 Ne2 c4 Qe1 f3 Bd2 f2 Ng3 f1B Ne2 Bg2 Qf2 Bg4 Re1 Nh6 Qf5 Nc6 b8Q Ne7 Qd7 Ba8 Nf4 e2 Kc1 c2 Nc3 Kg8 g7 Kh7 Bf7 Bh5 g8R Qf8 Be8 Qf6 Nfd5 Qe6 Rf8 Rg8 Nb4 Rg6 Rb1 Rf6 Rd1 e1Q Rb3 Qf2 Be1 Rg6 Rd2 Qef6 Re2 Qe6 Kb2 Qef6 Nd1 c3+ Ka1 c1Q+ Rb1 c2 Bf7 Q6f4 Be6 Rg7 Rd8 Qf8 Bh3 Rg6 Nc3 Qd1 Kb2 Ra6 g6+ Kh8 g7+ Kh7 Re3 Qg4 Re4 Qe6 Re2 c1Q+ Ka1 Qd1 Kb2 Qdb3+ Kc1 Qa4 Rb3 Kg6 g8Q+ Qg7 Qf7+ Kh7 Qfe8 Qgf6 Qf8
1q2q3/RN4BB/1b3N2/3p1Pnb/pQ1P3K/kPrpr1RQ/B4rr1/4R3 b - - 0 1 legal: proof: d4 c5 a4 b5 axb5 f5 e4 g5 h4 gxh4 exf5 Na6 Nf3 Nb4 Ng1 Nd3+ cxd3 c4 Rh3 cxd3 Rh2 Nh6 Rh1 Ng8 f6 a5 g4 d5 f4 Kd7 Kf2 e5 b6 Kc6 b7 Kb5 f7 Kb4 g5 h5 g6 h3 Kg3 h2 g7 e4 Nd2 e3 Nb3 e2 Nc5 e1R Be2 Nh6 g8B Qe8 Nf3 Bg4 f5 Rc8 Ne5 a4 Rg1 h1Q Ned7 Rf1 Nf6 Rf2 Qf1 Rh7 b3 Rg7 Bd1 Be7 f8R Bd8 Rg2 Nf7 Bh6 Rc6 Rb1 Ka3 b8Q Ba5 Qd6 Bb6 Bh7 Qb8 Rg1 Qe4 Bc2 Qee8 Re1 Bf3+ Kh3 h4 Bb1 Bh5 Ba2 Rg4 Qg2 Re4 Qf1 Re3+ Rg3 Rc7 Qg2 Rc8 Bg7 Ng5+ Kh2 h3 Rf7 Rc6 Ra7 Rc7 Nb7+ Rc5 Qd7 Rc7 Qb5 Rc3 Kh1 h2 Qf1 Rf4 Kg2 h1R Qa5 Rg1+ Kh2 Ne4 Kh3 Rf2 Kh4 Ng5 Qh3 Rgg2 Qb4+
2QK2Bq/2N1R3/b1p4R/Br1N1pNq/n1bpP1Qn/1k5b/1P2P1Q1/3b4 b - - 0 1 legal: proof: c4 b5 cxb5 a5 a4 g5 h4 gxh4 b6 e5 b7 Bc5 d3 Be3 d4 exd4 fxe3 Ra6 Qb3 Rb6 Qd1 Rb5 axb5 Kf8 Kf2 Ke7 Ke1 Ke8 Kd2 Ke7 Kd3 Kd6 Kc4 h5 g4 f5 g5 c6 b6 a4 g6 h3 g7 d3 Qd2 h2 Nf3 a3 Bh3 a2 Nd4 h4 Bg2 h3 Nc3 Na6 b8N Nc5 b7 Ne7 g8Q Ng6 Qh7 Na4 Qg7 Nh4 Nf3 Rf8 Qd1 d2 Qf1 d1B Na6 Qg5 Bd2 Qh5 b8Q+ Ke6 Kd4 d5 Qg4 Rf7 Rb1 Rb7 Ra1 Rb5 Nc7+ Kd6 Ng5 Ba6 Qc8 Qh8+ Kd3 d4 Bd5 Kc5 Bg8 Kb4 N3d5+ Kb3 Ba5 Qh5 Qfg2 Qh8 Rf1 h1B Rf3 h2 Rh3 Nf3 Rh6 Nh4 Rc1 a1Q Rc5 Ka2 Kc4 Qb1 Qf2 Bg2 Qg1 Bh3 Q1g2 Rb8+ Rb5 h1B Kb4 Qe4 Rb6 Qe8 Rb7 Nc3 Kc5 Qh5 Kd6 Na4 Ra7 Kb3 Kd7 Rb7 Kd8 Rb5 Qf1 Be4 Qfg2 Bd3 e4 Bc4 Ne8 Rb4 Re7 Rb5 Nec7
2KB3N/4B1P1/R1b1B3/q7/2Qp1q1R/p1pNkb1P/n1P2q1q/2rQ1rN1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 e5 h4 exd4 Qd3 g5 Qd1 g4 Bf4 h5 Bd6 Be7 Qc1 Nc6 Bc5 Ne5 Bb4 Bg5 hxg5 h4 Ba5 h3 Bd2 h2 Qd1 Ng6 Be3 Nf4 Bc1 Nh3 gxh3 Kf7 Bc4+ Ke7 Bf1 Ke8 Kd2 Ke7 b4 Ke6 f4 Kf5 b6 c5 b7 d5 b8B a5 b5 c4 g6 d3 Ke3 g3 Kd4 a4 Kc5 g2 Kc6 c3 g7 d4 b6 e3 b7 Ke4 f5 d2 f6 e2 f7 e1Q f8N Qeh4 Na3 Nf6 Bc7 Ke3 b8Q Nd5 Bc4 Bd7+ Kb7 Qf4 Ng6 Rf8 Qc8 Nb4 Be6 Na2 Nh8 Rf5 Bd6 Qa5 Qc4 Ra7+ Kb8 Bc6 Kc8 Rb7 Be7 Rb1 Ne2 Rf7 Rf1 h1Q Ng1 Qhh2 Bd8 Rf8 Bb2 Rc1 Rf2 Qfe5 Rf4 Qd6 Rh4 Rf1 Qc5 Qdf4 Nc4+ Kf2 Ne5 Ke3 Qh5 d1B Nd3 Bdf3 Ba3 Qf6 Qc4 Qff4 Bae7 a3 Rb1 Rfd1 Rb6 Rf1 Ne2 g1Q Ra6 Qgf2 Ng1 Bfe4 Qd1 Bh1 Ne1 Bhf3 Nd3
1qn1r3/2qP1RPq/p6Q/rNb2n1N/1Q3pB1/1P2Q2q/kp2BK1R/3B4 b - - 0 1 legal: proof: f4 b5 h4 c5 b4 e5 bxc5 exf4 Kf2 g5 hxg5 b4 Ke1 b3 Rh6 b2 Rh2 Bh6 Rh1 Bf8 c4 d6 c6 Be6 c5 Bb3 axb3 Na6 d3 Nh6 c7 Nb8 c6 Ng8 Be3 Qd7 Bd4 Qd8 Bc5 dxc5 c8B Ke7 e4 Kd6 g4 h5 c7 f5 e5+ Kd5 g6 c4 g5 h4 e6 c3 g7 f3 e7 a6 e8Q c2 d4 c1Q g6 h3 Ne2 h2 Nbc3+ Kd6 d5 Kc5 d6 Kb4 Kf2 Nc6 Nb5 Nce7 Nf4 Rh5 Be2 Nh6 g8Q Rb8 Be6 Nc8 g7 Qc3 d7 Bc5+ Qd4+ Qc4 Rhf1 h1Q Qh8 Rg5 Nh5 f4 Bg4 Nf5 Ra5 Qh3 Qee3 Qg8 Qh6 Qh7 Rh1 Ra8 Nc3 Rb8 Rb5+ Ka3 Rh2 Qcg8 Rb6 Qgh8 Nb5+ Ka2 Rf6 Qf8 Bd1 Qd6 Ke1 f2+ Ke2 Qc6 Qb4 Qb6 Rf7 f1Q+ Kd2 Qd3+ Ke1 Qdd6 Kf2 Ra8 Bde2 Qb8 Bd1 Nb6 c8B Qdc7 Bb7 Nc8 Bg2 Ba7 Ke2 Ng3+ Kf2 Qbb7 Qbd6 Nb6 Qc3 Re8 Bf1 Qbb8 Qdb4 Nc8+ Nd4 Ra5 Qe3 Bc5 Bfe2 Nf5 Nb5
N4K1Q/b1P2Br1/p2nr1R1/1P1B1kN1/2qpnQ2/1qn1nQ1P/p7/4NR2 b - - 0 1 illegal: No possible last move, all moves rejected
k1R3R1/Bp1qNr2/1q1Prq2/5R2/1PB5/1b2np1n/qQ2P2p/B1KN3Q b - - 0 1 legal: proof: h4 e5 f4 exf4 b4 a5 c4 d5 cxd5 g5 bxa5 gxh4 a3 Bb4 axb4 Qf6 Nh3 Qe7 Ng1 Qd8 d4 Kd7 Kd2 f5 g4 h5 d6 c5 d5 h3 a6 c4 g5 f3 g6 c3+ Kc2 f4 g7 h4 a7 h2 Bg2 h3 Ra3 f2 Nf3 f1Q Ng1 Rh7 Qd3 Nf6 g8R Nc6 Qe4 Rf7 Nf3 Ne7 Nh4 Ng6 Nf5 Qb6 Ra5 Ng4 Ne7 Qf3 Bd2 Ne3+ Kc1 c2 Bc3 Qf2 Re1 h1Q Ba1 h2 Nc3 Qhf1 Bf3 Qh3 Nd1 Qfh4 Rc5 Qf6 Rf1 Qhf5 Bh5 Q5e6 Qh1 f3 Ra5 Rb8 a8Q Nf4 Rc5 Qef5 Qa3 Nh3 Qb2 Ra8 Rfg1 Ra6 R1g5 Qd3 Re5 Qc4 Rf5 Qa2 Rg7 Kd8 Rc3 Be6 d7 Qc4 Rg6 Kc7 d8B+ Kb8 Bc7+ Ka8 Bb8 Qa2 Rc8 Qa7 Rgg8 Qb6 Kd2 c1Q+ Ke1 Qcb1 Kd2 Qd3+ Kc1 Qdb5 Bg6 Qd7 d6 Bb3 Bh5 Ra5 Bg4 Re5 Bh5 Rg7 Bf7 Rh7 Bd5 Rf7 Bc4 Re6 Ba7+
2QNk3/2Q1Bp2/R1n3n1/1P2R1bn/2NN4/1nKBpQr1/pP1r1P2/3bb3 b - - 0 1 legal: proof: g4 g5 e4 b5 c4 d5 d4 b4 e5 b3 cxd5 c6 d6 Qd7 d5 Qxg4 h3 Qxh3 axb3 g4 b4 g3 b5 Bg7 Qe2 Kf8 Qh5 Qd7 e6 Bh6 exd7 Kg7 Qe2 Kf6 Qd1 Bf8 Kd2 h5 d8Q a5 d7 h4 d6 g2 Qb6 e5 d8N e4 d7 Ke7 Ne2 g1B Nd4 c5 Qc2 a4 Qa7 a3 Nb7 a2 Na5 h3 Bg2 e3+ Kd3 c4+ Ke2 c3 Kd3 Bh2 Be4 Bf4 Na3 h2 Qd1 c2 Bd2 Rh3 Nf3 Bg5 Qc7 c1N+ Kc2 Nb3 Nb7 Bgh6 Rg1 h1N Rg6 Ng3 Ra6 Nc6 Rc1 Bg5 Bh7 Nh5 Bb4+ Nc5 Qe2 Rg3 Rd1 Bg7 Rd5 Bc3 Nc4 Be1 Re5+ Kf8 Bf5 Nge7 Qd1 Nb3 d8Q+ Kg7 Q1d5 Ng6 Be7 Bd7 Be4 Bg4 Q8d7 Rd8 Qdc8 Rd6 Nd8 Rd7 Qd1 Rd2+ Kc3 Kg8 Nd4 Bf3 Bf6 Kf8 Be7+ Ke8 Bc2 Bh1 Qdg4 Bf3 Bd3 Bd1 Qf3
2N2BK1/2n3n1/NPNQ3q/4Rppp/1PR4q/2nnQnP1/b2B1R2/5kr1 b - - 0 1 legal: proof: c4 a5 h4 d5 a4 dxc4 h5 b5 axb5 g5 Qc2 Ra6 Qd1 Rg6 hxg6 Bf5 Nc3 Bg4 Nb1 Bc8 d4 e6 e4 Ke7 f4 Nd7 d5 Nh6 d6+ Ke8 e5 Ng8 Be2 Bh6 Bf3 Bf8 Bd5 exd5 e6 Bg7 Be3 Bd4 Bc1 Be5 fxe5 Nb8 Ke2 f5 Kf3 c5 b4 d4 g7 c3 e7 Kf7 e8R Kg6 d7 c2 g3 a4 e6 d3 b6 d2 e7 c4 Ba3 c1Q Ke3 c3 Kd4 c2 Kd5 Na6 Ke6 Nf6 g8N Nh5 Bb2 a3 Bc3 a2 Qg4 d1N Qd4 Qf4 Nd2 c1N Rh4 Nd3 Ne4 h6 Rh2 Qh4 Rc1 a1N Rf2 Nc2 Nc5 Nce1 Bd2 Nc3 Ne2 Nf3 Qd6 Qc7 Nd4 Qc6 Rf8 Bb7 d8B Rh7 Rf7 Rh8 e8Q Ng7+ Ke7+ Kh5 Kf8 Kg4 Qe3 Kh3 Re7 Nc7 Re5 Bc8 Be7 Be6 Na6 Ba2 Nb5 h5 Na7 Rh6 Nc8 Re6 Rff1 Kg2 Rc2 Na4 Rc4 Nc3 Rf2+ Kg1 Ra5 Re4 Re5 Rf4 Kf7 Rd4 Bf8 Re4 Qed4 Re1 Nge7 Rc1 Kg8 Ra1 Qd7 Qh6 Qe3 Rd1 Nc6 Re1 Rg2+ Kf1 Qdd4 Re2 Rh2 Rg2 Qd6 Rg1 Rf2+
2K3k1/pN3Qn1/3N2q1/N2q4/2pr2PQ/b1B1bPR1/Rbp2Pb1/b2B3Q b - - 0 1 legal: proof: c4 d5 e4 dxc4 a4 b5 axb5 f5 Ra6 fxe4 Ra4 Na6 Ra5 Rb8 Ra1 Rb6 h3 g5 Ra5 g4 Ke2 g3 Qc2 Nb4 Ra1 Nc6 Ke1 Nd4 Qd1 Nf3+ gxf3 Ra6 Qb3 Rg6 Qd1 Rg4 hxg4 Qd3 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 d4 c5 b4 h5 b6 c3 b5 h4 d5 g2 b7 c2 b8N h3 d6 h2 d7 Nf6 b6 Kg8 b7 Nh5 Bd2 Ng7 Be2 c4 Qf1 Ba3 Na6 Qe8 d8Q Bf5 Qd7 Qg6 Nh3 Rh7 Rg1 h1Q Ng5 Qhh5 Nf7 Rh6 Rh1 g1B Bd1 Bh2 Rg1 Rh7 Nd6 Bf4+ Ke2 e3 Ra2 e4 Rg3 Be5 Qh1 Ba1 Nc5 Qhg5 b8Q+ Qd8 Ke1 e2 Bc3 B3b2 Kd2 e1B+ Ke3 Bd2+ Kd4 e3 Ke5 e2 Qbc8 e1B Ncb7 Be3 Nd2 Bd3 Nb3 Bf1 N3a5 Bg2 Qe7 B1d2 Qeh4 Bdc1 Qd7 Ba3 Kd5 Bcb2 Kc6 Rh5 Qde7 Rd5 Qc7 Qdg5 Kd7 Rd4 Kc8 Qd5 Qf7+
1b2kN2/1K2R1q1/1Q1r1R1p/PN2p1qr/3B2rP/1P1N1p1q/4nR2/B2Q3q b - - 0 1 legal: proof: e4 d5 exd5 b5 b4 a5 Bd3 axb4 Nc3 b3 Nge2 b4 Ng1 b2 Nb1 b3 Na3 b1R Bf1 b2 f4 e5 f5 g6 Bd3 Na6 Be4 Be6 fxe6 Nc5 Bf5 Nb3 cxb3 gxf5 Kf2 c5 Kf3 f6 h4 h6 g4 f4 Ke4 c4 d4 f3 g5 c3 g6 c2 d6 f5+ Kd5 f4 Kc6 f2 e7 f1Q g7 f3 d5 Ra5 d7+ Kf7 e8R Qf2 d6 Qe2 Kb7 Be7 Nh3 Ra4 Nb5 Qg2 Nf4 Qh3 Rh2 Nf6 g8N Ne4 Nd3 Ng3 Nf6 Rf8 Nh7 Ne2 Rf2 Rg4 a4 Qa5 Be3 c1Q Bd4 Qg5 d8Q Qad2 a5 Qg7 d7 Qdg5 Qb6 Bd6 d8B Bb8 Ra4 Rc1 Be7 b1Q Ba3 Rc6 Bab2 Rd6 Ba1 Qbc1 Re6 Rg8 Rf6+ Ke8+ Rf7 Rf8 Rc4 Qb1 Rcc7 Qbc1 Rf4 Rf5 Nf8 Qb1 Qd2 Qbh1 Qd1 Q5f6 Rf7 Rh5 Rf5 Qfg6 Rf6 Qg5 Re7+
1Q4Rq/3qp3/QP3B1N/p3nB1b/nR5K/2Np1r2/Pqq3P1/3BnR1k b - - 0 1 legal: proof: e4 d5 h4 b5 c4 bxc4 d3 g5 hxg5 cxd3 Qb3 d4 Qc2 Nh6 Qd1 Ng8 f4 Bh6 g6 Bg5 fxg5 a5 Rh5 Ra6 Rh2 Rd6 Rh1 Rd5 exd5 Be6 Be2 Bg4 Bf1 Bc8 Kf2 Kd7 Kg3 Kd6 b4 Ke5 b5 f5 b6 h5 d6 c5 g7 f4+ Kh4 f3 g6 d2 d7 Kf4 Bd3 f2 Bc2 f1N Bd3 c4 Qb3 c3 Ba3 d1Q Ba6 c2 Qd5 c1Q Qc4 Nh2 Bb7 Nc6 Qa4 Qb2 Nf3 Nf6 g8R Ne4 g7 d3 Nc3 Qdc2 Qc4 Ne5 Qa6 Nc5 Ng5 Na4 Be4 Rh7 Rhb1 Nhf3+ Kh3 h4 Bf5 Bb7 Nf7 Ne1 Nh6 Bf3 Bc5 Qc7 d8Q Qd7 Bd4 Bh5 Qb8 Rh8 Rf8 Rh7 g8B Rf7 Re8 Rf6 Bd5 Rf8 Bf3 Rf7 Bd1 Rf6 Kh2 h3 Rg8 Rf7 Bf2 Rf6 Bh4 Ke3 Kg3 h2 Kh3 Rf8 Bf6 Kf2 Kh4 Kg1 Rc1 Kh1 Rab1 Qcb3 Rc2 Rf7 Rf2 Q3c2 Be4 Rf8 Bg5 Rf3 Bf6 Kg1 Bf5 h1Q+ Bh3 Qa3 Rb3 Qab2 Rb4 Qh2 Qc4 Kh1 Qa6 Qf4+ Bg4 Qff5 Bh3 Qh7 Bf5 Qh8 Rf1+
5Q1q/b3bPB1/2b1B1nN/Pp1b3p/1R4QR/3r4/1PpQ2bb/1NK1B2k b - - 0 1 legal: proof: e4 f5 h4 g5 c4 gxh4 c5 f4 Qa4 a6 Qxa6 d6 Qa5 dxc5 Qa7 c4 f3 e5 Ke2 b5 Qb6 Nc6 Ke1 Nd4 Qa5 Nf5 exf5 e4 Qa6 e3 Qb6 Ra6 Qa5 Re6 Qb6 Re4 fxe4 Ke7 Qa6 Kd7 Qb6 Ke8 Kd1 Kd7 a4 c5 d4 h5 g4 h3 g5 e2+ Kc2 e1B d5 c3 a5 h2 e5 c4 g6 f3 g7 f2 f6 Be7 d6 Ke6 d7+ Kd5 f7 Ke4 e6 Bb7 Ra4 Bd5 Nh3 Kf3 Qd6 Qa8 Be2+ Kg2 d8B f1B Bh6 Bf2 Bg4 Ba7 Kc1 c2 Nf2 Qb8 Rb4 Bc6 Kd2 c1B+ Kd1 c3 Qd2 Qc8 Bc7 Bc4 Bg3 B4d5 Bh4 Nf6 g8Q Nd7 Qf8 Ne5 Bg7 Ng6 Bf5 Qa8 Qc8 Rd8 Ng4+ Bf2 Nh6 c2+ Ke2 Ba7 Be1 Rd6 Qd7 Qh8 Bg4 Bg5 e7 Bf6 e8Q Be7 Qdc8 Rd7 Qf8 Rd8 Qd3 Bf4 Be6 Bg3 Kd2 Rd6 Rf1 h1B Rff4 Bh2 Rh4 Kg1 Qc3 Bhg2 Kc1 Kh1 Qe3 Bde4 Qd7 Rd3 Qd2 Bef3 Qd4 Bfd5 Qg4
b7/bb4NQ/4PPqp/Q1q2q2/p2N3K/rr2BB2/pRP4R/q4kNQ b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 cxd4 Be3 g5 hxg5 f5 Bc1 f4 f3 e5 Bc4 Ne7 Bf1 Na6 Bd3 Nf5 Bf1 Nc5 exf5 e4 Bd3 e3 Bf1 Ne4 fxe4 Ke7 Ne2 Kf7 Ng1 Ke8 b4 a3 g4 Kf7 e5 a5 b5 d5 b6 d3 f6 Ke6 b7 h6 b8Q f3 g6 e2 Kf2 d4 Kg3 Kd5 g5 Ke4 e6 e1Q+ Kg4 a2 g7 d2 g8Q Ke3 g6 Kf2 g7 d3 Kh5 Qd4 Qf7 Bc5 g8N Qee4 Ne2 Ra7 Qf4 Qg6+ Kh4 Ba6 Ne7 Rb8 Na3 Rb3 Rb1 Bb7 Nf5 Bb6 Rb2 Qc5 Q4c7 Ra6 Nf4 Ba7 Be2 Ba8 Nh3+ Kg2 Qfd7 f2 Bh5 f1Q Qe1 d1B Be3 d2 Nb5 Bdf3 Nbd4 d1Q Qh7 Bfb7 Ng7 Qa1 Qc6+ Qf3 Ng1 Qfd5 Qc3 Kf1 Rh2 Qdf5 Qb4 Rb6 Qc3 Ra3 Qh1 a4 Bf3 Rbb3 Qa5
1B4Nn/2RRqP2/3nN2K/r2QQ1r1/p1k1q1PP/2r1R2p/2N2n1p/3B2r1 b - - 0 1 illegal: No possible last move
8/P3q1nQ/knQ1nB2/Q3PR2/1b3B1K/1N1pbp1p/bR2NPb1/1N3n2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 d6 e6 d4 Kd7 d5 Ra3 g3 Ra6 Bg2 Ra8 Be4 Ke8 d7+ Ke7 Bg2 Kd6 Bf3 Kc5 d6 Kb5 Bd5 exd5 Qd3+ Kb6 Qd1 Kc6 h3 h5 g4 g5 Nc3 f5 Na4 b5 Ba3 f4 Nb6 Kc5 Nc4 Ra6 Nd2 Kd4 Nb1+ Ke5 Bb2+ Ke6 Bc1 Ra3 Qb3 Kf7 Qd1 Rg3 h4 Rh6 Qd4 Rf6 Qd1 Rf5 gxf5 Re3 Nc3 g4 Nb1 Re6 Kf1 Rg6 Ke1 Rg5 hxg5 Bh6 Be3 Bg7 Bc1 Bf8 a4 c5 e4 b3 a5 h4 f6 Ke6 f7 d4 g6 c4 g7 g3 e5 Kd5 a6 Kc6 a7 Kb6 Qg4 b4 Qf3 b2 Qd5 h3 Ra3 b3 Qe4 c3 Rh2 c2 Qh1 g2 Ra4 d3 Ne2 g1N Ra2 Qe7 Rg2 Bb7 Kf1 Nf3 Rg5 Nh6 g8Q Nd4 Qh7 Bg2+ Kg1 Ne6 Kh2 Nf5 d8B+ Kb7 d7 f3 Bf4 Nfg7 Kg3 c1B Rf5 Bd2 Qc1 Be3 Nbc3 b1N Rb2 Nd2 Nb1 Nf1+ Kg4 Qc5 Kh4 Ka6 Bf6 Qe7 d8Q Nd7 Qc6+ Nb6 Qdd5 Qe8 Qd8 Bb4 f8N Qf7 Nd7 Qe7 Rc2 b2 Nc5+ Ka5 Nb3+ Ka6 Na3 b1B Rb2 Ba2 Nb1 Nd2 Qdd5 Nf1 Qa5+
3Q3Q/1B1N1p2/1R2Bnqp/P2Np1Qq/n5n1/4P1R1/PB2kb2/Kn4qn b - - 0 1 illegal: No proof kernel
k3K1Q1/1Pp2N2/4R1Qp/np1p1P2/4R1n1/b4r2/PnB1BN1r/1q1R2Nb b - - 0 1 legal: proof: d4 a5 h4 b5 c4 g5 b4 gxh4 bxa5 e5 dxe5 Qe7 c5 Qd8 e4 f6 e6 Ke7 e5 Qe8 Bb2 Qh5 Bd4 Qf3 Bb2 Qb7 Bc3 Qb6 cxb6 Ke8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Kd2 Kb7 Ke3 e4 Kd4 d6 Kd5 e3 e8R h3 f4 h6 g4 h2 g5 e2 f5 e1Q g6 Bg7 e7 Bf6 g7 Bh4 Nc3 Qg3 Qg4 Nc6 Qg6 Qe1 Be2 Qb1 a6+ Kb8 Nd1 Na5 Nf2 Nf6+ Kd4 Rf8 g8Q Ng4 Kd5 Bg3 a7+ Kb7 Rd8 Re8 Rd7 Bf4 Ke6 Bc1 Kf7 Ba3 Rd8 Bd7 Rc8 Rd8 e8N Bc6 Kf8 Rd7 Rd8 Re7 Rd7 Re3 Re7 Rd8 Re6 Rf3 a8B+ Kb8 Bb7 Be4 Bd5 Rd7 Bb3 Ka8 Ba4 d5+ Nd6 Rg7 Bc2 Re7 Ngh3 Rg7 Rd1 h1N Ng1 Re7 Nfh3 Nhf2 Nf7 Nd3 Nf2 Nb2 Re1 Rb3 Rd1 Bh1 Rd4 Rf3 Rde4 Rd7+ Ke8 Rd6 Ra4 Rc6 Rf4 Rcc3 Rfe4 Rh3 Bb3 Rcf3 Bc2 Qf1 Rd1 Rh2 Rdd4 Qa1 Rd1 Qb1 b7+
q1b3RB/1n3r1p/1PP2p2/3k2Q1/2R2ppN/rbq1q2Q/N1P2Q1N/1B3K2 b - - 0 1 legal: proof: f4 c5 a4 b5 d4 bxa4 dxc5 e5 g4 exf4 g5 Qf6 Na3 Qb6 Nb1 Qd8 h4 Ke7 Ra2 f6 Ra1 Nc6 Bg2 Ne5 g6 Nf7 gxf7 g5 Bf1 g4 Bg2 Bh6 Bf1 Bg5 hxg5 Qc7 Na3 Qb6 Nb1 Qd8 f8N d5 b4 a5 e4 a3 g6 a4 c6 Kd6 e5+ Ke7 b5 a2 b6 a3 e6 Kd6 g7 d4 e7 d3 e8Q Bb7 Qde2 Kd5 Nc3+ Kd4 Rh6 Ne7 g8Q Ba6 Qh5 Qe8 Qgg5 Bc8 Ng6 Rf8 Nh4 Rf7 Rg6 Nf5 Rg8 Qe3 Ngf3+ Kc5 Rb1 a1Q Na2 Kd5 Rb4 Qc3+ Bd2 Ra6 Nh2 Ra8 Rc4 Ra6 Nc1 a2 Qhh6 a1Q Bg2+ Qf3 Qf2 Ra3 Kf1 Qa2 Be3 d2 Bc5 d1B Bf8 Qe4 Qhh5 Bf3 Bg7 Qee3 Bh8 Be4 N4f3 Qaa1 Qh3 Qa2 Nh4 Bf3 Qg6 Nd6 Qh6 Nb7 Qg5+ Kd6 Bh1 Bd5 Bg2 Bde6 Bd5 Qaa1 Ra4 Kc5 Ba2+ Kd6 Bb1 Bb3 Rc4 Ke6 Qg7 Kd5 Qh6 Qa5 Qg6 Q1c3 Na2 Qa8 Qg5+
1N1B1QKQ/1P3rp1/3Ppk2/4N1bB/3qq3/RP1nQ1p1/1nnp2R1/1b1B4 b - - 0 1 legal: proof: e4 f5 g4 fxe4 d4 b5 a4 h5 axb5 hxg4 c4 c5 dxc5 d5 Qd3 d4 Qe2 Qd7 Qd1 Qd8 Bf4 a5 Bc1 Ra6 Kd2 Rd6 Ke1 Rd5 cxd5 Rh4 Bh6 Rh3 Bc1 Rh8 Ke2 Kf7 f4 g3 h4 d3+ Ke3 a4 Kd4 a3 Ke5 e3 b3 e2 f5 e1N b6 a2 d6 Ba6 c6 Ng2 b7 Nf6 c7 Nh5 c8B Qd7 f6 Qd8 Qe2 Qc7 Nd2 Kg6 Ke6 Ne3 f7 Qd8 Ne4 Nf6 Nc5 Nc6 Nd7 Na5 Nb8 Ne4 Nf3 Nac4 Rg1 Nc2 Rg2 Nf2 Qe3 Qe8 Be2 Nb2 Bd1 Rh5 Bd2 Rf5 Ba5 d2 Bd8 Bd3 Bd7 Be4 Ba4 Nfd3 h5+ Kh7 h6 Kg6 h7 Rf4 Rb1 a1Q h8Q Rf5 Bb5 Qa7 Ba6 Qd4 Ra1 Qea4 Ra3 Qab4 Kd7 e6 Ke8 Be7 f8Q Rf7 Ne5+ Kf6 Bc4 Bh7 Bd5 Bg6 B5f3 Qe4 Bfe2 Qbd4 Bh5 Nf4 Ned7+ Kg5 Qf2 Qf3 Rg1 Na1 Rg2 Bb1 Ne5 Nfd3 Qfg8 Nc2 Qe2 Qfe4 Qe3+ Rf4 Qf8 Bf6 Kf7 Kf5 Bhe2 Bg5 Ng4 Rf2 Kg8+ Kg6 Bf3 Rf1 Bfe2 Rf7 Ne5+ Kf5 Ba5 Kf6 Bh5 Qc4 Bb6 Qcd4 Bd8+
2R2Qq1/pk3Q2/1Npp1P2/1pB3b1/NrR1K3/1P2n1qB/4N2P/2R1nq1r b - - 0 1 legal: proof: e4 h5 a4 f5 exf5 b6 g4 Rh7 gxh5 Rh8 a5 Nc6 a6 Nb8 d4 Bb7 axb7 Na6 d5 Nb8 d6 Rh6 Kd2 Rh7 Ke1 Rh8 c4 cxd6 c5 Qc7 c6 dxc6 Nc3 Qc8 Nb1 Qd8 Ke2 Kd7 Kf3 Kc7 b3 e5 h6 g5 f6 g4+ Ke4 g3 f4 g2 f5 b5 f7 Be7 f8R Nd7 b8N Nc5+ Ke3 e4 h7 Bg5+ Kd4 e3 f6 e2 Ra4 e1Q Nc3 Nd3 Nge2 g1Q+ Be3 Kb7 Ke4 Qgg3 Bh3 Nh6 Bc5 Ng4 Nd7 Ne3 Nb6 Qf1 Rc4 Ne1 Qd5 Qc8 Nca4 Qcg4+ Nf4 Re8+ Qe6 Re7 Rc8 Rhe8 h8Q Rh7 Qf8 Rh4 Kd4 Re7 Qef7 Qe6 Q7e8 Qg8 Rg1 Re5 Qe6 Rd5+ Ke4 Rd1 Qef7+ Ka6 Rc1 Qg4 Nb2 Nd3 Rg2 Qg1 N2a4 Qg3 Rd2 Q1g2+ Kd4 Rh1 Rdc2 Ne1 Rc3 Qf1 R3c2 Rh8 Ne2 Rh4+ Kc3 Rf4 Kd2 Rb4 Rc4 Qf5 Kc3 Qff3 Kd4 Qf1 Qh5 Kb7 Ke4 Bh6 Qg6 Bg5 Qgf7+
4K3/2Q1N3/2PbQQBr/1r1pnb2/RN2Pbp1/BBPp2r1/3p2R1/n3k3 b - - 0 1 illegal: No proof kernel
8/4B3/q2b1q1q/1Q3pPB/3b1Qpk/1BRb2P1/1KQPprpN/N1R4n b - - 0 1 illegal: No possible last move
1qqr4/1k4b1/1N2p2Q/KBp1RpbP/2BP1Q2/4P1Rn/p5q1/2BbNN2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 g5 c4 dxc4 Na3 gxf4 Nb1 h4 h3 a5 Ra2 Nc6 Ra1 Rh5 gxh5 Ne5 Qc2 Ng4 hxg4 Ra6 Qa4 Rh6 Qd1 Rh8 b4 Kd7 d4 f5 Kd2 a4 Kc3 f3 b6 Kc6 b5+ Kb7 Kb4 c5+ Ka5 h3 g5 f2 g6 h2 g7 c3 Nd2 c2 Ngf3 a3 Rg1 h1Q Ne1 a2 Rg3 Nf6 g8B Bg7 Bc4 e6 Rb1 Qg2 Rbb3 Ne4 Rbe3 Ng5 Re5 Nh3 e3 Bd7 Qg4 Qb8 Qf4 Rd8 Qh6 Qc6 Bfd3 f1Q Be2 Qfg2 Nf1 Qcc8 Bed3 Ka8 b7+ Ka7 Be2 Bc6 Bed3 Bf3 Be2 Bg4 Bed3 Bd1 Be2 Qd6 b8N Kb7 b6 Qdc7 Nd7 Q7b8 Bb2 c1B Bed3 Ka8 b7+ Ka7 Nb6 Bd2+ Kb5 Ba5 Bc1 Rg8 Nd5 Bc7 Nb6 Bd8 Ka5 Bg5 Bb5 Rd8 Bdc4 Qd6 Bd3 Kb8 Bbc4 Kc7 b8Q+ Kc6 Be2 Qf8 Qd6+ Kb7 Bb5 Qb8 Bec4 Qh8 Re4 Qe8 Qf4 Qd7 Re5 Qdc6 Bb3 Qcc8 B3c4
R6K/1Pp1qR1N/BqN4P/Q1n2b1b/p2P2p1/b2nN2q/1B1Q3p/4kB2 b - - 0 1 illegal: No possible last move, all moves rejected
2k3b1/rrNR3p/2q3Br/b2Pb3/4p1R1/1RPBpp2/K1b2NP1/2QQ2B1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 g5 h4 gxh4 e3 e5 Qg4 e4 Qf3 Nc6 Qd1 Ne5 fxe5 d5 Ke2 d4 Ke1 Nh6 Rh2 Nf5 Rh1 Nd6 bxc5 dxe3 Bd3 b4 Bf1 Nb5 axb5 Qa5 Be2 Qc7 Bf1 Qd8 d4 Kd7 e6+ Kc7 c6 f5 b6+ Kb8 e7 a5 e8B b3 d5 h3 b7 a4 c7+ Ka7 b8R b2 Rb3 a3 Bg6 h2 Nh3 a2 Bd3 f4 Bd2 f3 Nc3 b1B Nf2 Qd6 Nb5+ Kb7 Bc3 Bd7 Be5 Qc6 Bf4 Be6 c8Q+ Kb6 Nc7+ Bb4+ Qd2 Bg8 Kd1 Ka7 Kc1 Ba5 Kb2 Rb8 Qd1 Rb7 Rg1 h1R Bh2 Qb5 Re1 Qc6 Bg1 Rh5 Qf8 Rh1 Qc5+ Kb8 Qc3 Rh6 Qcd2 Be6 Q2c1 Kc8 Rf1 Rf8 Ka3 Bg8 Re1 Rf7 c3 Bc2 Rab1 a1B Ka2 Bb2 Rf1 Ra7 Rb7 Ba3 R1b3 Bd6 Na8 Qc4 Bh2 Qc6 Rh1 Ra6 Bg1 Be5 Rh4 Ra7 Rg4 Rf8 Rg7 Re8 Rf7 Ree7 Rg7 Rec7 Rd7 Rcb7 Nc7
2NN1R2/PBpb1rb1/P1p4B/7K/1pB4Q/1N3PRQ/r2p1k2/1b1qbq2 b - - 0 1 illegal: No proof kernel
BK4n1/R1n2pnn/1b3P2/1np1R1RP/2BB1k1P/QN4q1/1p5p/Q2nN3 b - - 0 1 illegal: No proof kernel
3Q1Bn1/1Rnp1P1p/Pn4N1/2q5/P3ppK1/4NQ2/p1Rk1B2/1b2NRbr b - - 0 1 illegal: No proof kernel
B1r3n1/pR2B1n1/4NP1q/1Qp1k1p1/Pp4bP/2rqQ2N/1NRp2K1/1R6 b - - 0 1 legal: proof: c4 h5 e4 c5 g4 f5 gxh5 e6 exf5 Qe7 d4 Qh4 d5 Qd8 d6 Be7 b4 Bf8 b5 Bxd6 b6 Bc7 bxc7 Qh4 Bg2 Qxc4 Bh3 Qh4 Bf1 Qd8 h4 Ke7 f4 Kf6 Kf2 d5 a4 b5 h6 g6 h7 d4 Qd3 b4 Nh3 e5 Bg2 e4 Rh2 Nh6 Nd2 Re8 h8R Nc6 Qb5 d3 Rh7 Rb8 Nc4 Ng8 Nb2 Nd4 Rb1 e3+ Kg3 e2 Ba8 e1Q+ Kg2 Be6 c8Q Qe3 Rb7 Qd7 Qcc6 Rbc8 Qe4 Qh7 Qf3 Qh6 Qg3 Qe2+ Qf2 Qd1 Qe3 Bd7 Bd2 Ne6 Bc1 Ng7 Bd2 Kf7 f6 g5 f5 Re4 Bc3 Rc4 Be5 Rc1 Bd6 Rc3 Be7 Qd2+ Kg3 Qd1 Rc2 d2 Kg2 Qe2+ Qf2 Qd3 Qe3 Ke8 Bf8+ Kd8 f7 Be6 f6 Bg4 Rb8 Kc7 Be7 Qhh7 f8N Qh6 Bd8+ Kd6 Rb7 Kd5 Ne6 Kd6 Be7+ Kd5 Qf3+ Ke5 Qe3+
1B1RR3/pBnQ1pbn/P1q3pk/2NN2b1/4p3/2p3Pq/1BP5/2Q1qRK1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 e5 hxg4 e6 c4 Ne2 Na6 Ng1 Rb8 Qe2 dxe6 Qf3 e5 Qd1 e4 Be2 g3 Bd3 Rh5 Bf1 Rc5 bxc5 g2 c6 Bb7 cxb7 Rc8 Bb2 Rc5 Ba3 Rg5 Bc1 Rg3 fxg3 Qd4 Nc3 Qd6 Nb1 Qd8 Kf2 e5 b8B g6 a4 b4 d4 b3 h4 b2 a5 c3 d5 Ne7 h5 Nf5 h6 Qe7 d6 Ng7 h7 Qh4 h8Q Nh5 Nd2 b1Q Nb3 Qh3 Bb2 Nf6 Qc1 Nh7 Nc5 Nc7 Ne2 e3+ Kg1 e4 Nf4 e2 Nd5 e1Q Qd4 Bg7 d7+ Kf8 a6 Qa2 Qdd1 Qa4 d8R+ Qe8 Qd3 Be5 Qb5 Kg7 Qd7 Bf4 Rb1 Kh6 Ra1 Bg5 Rb1 Qd2 Bb5 Qe6 Bc6 Qd6 Bb7 Qc6 Rh2 Qe2 Qf4 Qd2 Rf1 Qd1 Kf2 Qa1 Qc1 g1B+ Ke1 B1e3 Re8 Bd4 Rd2 Bg7 Kf2 Qb1 Kg1 Qa1 Rdf2 Qb1 Rf5 Qa1 Rfe5 Qb1 Rd8 Qa1 Ree8 Qb1 Qd2 Qe1 Qc1
4N1K1/7P/2PQ3p/ppkB2Q1/1Rn1R3/p1ppPrB1/3np3/1Rb1q1NB b - - 0 1 illegal: Other
N5B1/3B1K1p/Qr5R/q7/1Pn2pP1/ppBrR1pp/kNp2nP1/4Q1N1 b - - 0 1 illegal: Other
1b1n4/b1RN1QnB/QbN1bR2/4n1bq/Rrq1P3/1r1P2K1/2QkPB2/4r3 b - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 b5 axb5 e5 f3 e4 fxe4 g5 Qb3 gxh4 Qa4 Bc5 Qd1 Bf8 Kf2 Kd7 g4 Ke6 b4 Ke5 d3 Kd4 b6 f5 b5 a5 g5 h5 g6 c5 b7 a4 g7 c3 b6 h3 Qc2 a3 Qd2 c2 Qa5 f4 Nd2 f3 Qa4+ Kc3 Qa7 c4 Bg2 h4 Rb1 h2 Nh3 a2 Rb5 a1B Rb1 Nc6 b8Q Bc5+ Ke1 f2+ Kf1 Ne5 b7 Be6 Qd6 Nh6 g8Q Rb8 Rb5 Bb6 Bf3 Qc7 Kg2 f1R Rb1 Re1 Qa2 Nhf7 Rb4 Nd8 Nf4 h3+ Kg3 Qf7 Rf1 h1Q Qgf8 h2 Nh5 Rh7 Ba3 c1B Nb3 Bce3 Ra4 Ba7 Nf6 Beb6 Bb2+ Kc2 Qe8 c3 Nd4+ Kd2 Nc6 c2 Bg4 c1B Nd7 Qh5 Rf7 Qf1 Re7 Qff7 Bf5 Rh8 Bh7 h1N+ Kg2 Ng3 Bd4+ Bab2 Bf2 Nf5 Qb1 Ng7 Kg3 B2d4 Qa3 Be3 Qf8 Bg5 Qaa2+ Bb2 Qc4 Ba3 Qa6 Bd6 Qg8 Bg4 Qe8 Qc4 Rf7 Be6 Rf6 Rc8 Qf7 Bdb8 Nd4 Rc5 Nc6 Ra5 Nb4 Rb5 Nc6 Bd6 b8R Rb4 Rb7 Bdb8 Rc7 Re8 Qg8 Re7 Nf8 Rd7 Qf7 Rd5 Nd7 Rdb5 Qc8 Rb3 Qa6 R5b4 Qc2+
n1n5/1bB2Rk1/bb2r1r1/1B4nq/PQ1PqnQ1/2N2N1P/1n5B/1Rq3NK b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 Kf7 a4 e5 f4 b5 Kf2 c5 Kg2 g5 d6 c4 f6 g3 h3 g4 d7 c3 f5 e4 Qe2 e3 Ra3 b3 Ra1 c2 Ba3 c1Q Qf2 b2 Qc2 e2 Bd6 b4 Qd1 b3 Bc7 Ne7 Ra2 Bb7+ Nf3 e1N+ Kg1 g2 Qc2 Nd3 Bd6 Nc8 Qc6 Ra6 Qc7 Rh6 Na3 b1B Be5 b2 Nd2 Re6 Nf3 Rg6 Bh2 Na6 Qf4 Qe8 d8B Bc5 Bc7 Bb6 Nb5 Qh8 Qg3 Qh5 Nc3 Bc2 Qf4 b1Q Qg3 Bb3 Rf2 Bc4 Qf4 Kg8 f7+ Kg7 f8N Nb2 Nh7 Qe4 Nhg5 Bb5 Bd6 Nc7 f6+ Kh8 f7 Na8 Bb8 Kg7 Bc7 B5a6 Qg3 Qd2 Bb5 Qdc2 Rf1 Qc1 Kf2 g1N Kg2 Ne2 Qf4 g3 Qg4 Qcb1 Rhg1 Nf4+ Kh1 Qbc2 Rb1 Qc1 Rf1 Ng2 Ng1 Nf4+ N5f3 Kh6 Nge2 g2+ Kg1 Kg7 f8Q+ Kh7 Qb4 Kg7 Kf2 g1N Kg3 Nfd3 Kg2 Nf4+ Kh1 Ng2 Ne5 Nf3 Ng1 Ng5 Rf5 Nf4+ Nf3 Qd5 Rf8 Qe4 Rf7+
5N2/rB1K1Bn1/3Q3Q/br1P1n2/1n1q2P1/qqR1NPnb/nR2k2b/3Q2B1 b - - 0 1 illegal: No possible last move
7k/q1Rr4/4PQqr/qPRBb1r1/bBNB4/QbRq1N2/q1P1nK1n/8 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 g5 b4 d5 e4 f5 h6 Kf7 h5 a5 h7 Kg7 b6 g4 b7 d3 e5 d2+ Kf2 a4 e6 a3 Qe1 d1Q Bd2 a2 Bd3 d4 Rh3 f3 Qf1 f4 Be4 d3 Na3 Nf6 Bc1 d2 Bf5 Bd6 Ne2 g3+ Kg1 g2 Nd4 f2+ Kh2 f3+ Rg3+ Ng4+ Kh3 g1Q Bb2 Be5 Qb5 Nc6 b8R Bd7 Qa5 Qb1 Bc1 d1R Rb5 Qe7 Bg5 Nh2 Be4 Rag8 Bd5 f1Q+ Kh4 f2 Nf3 Qe8 Nc4 Qg6 Qa3 Nd4 Be7 Ne2 Rc5 Ba4 b5 Qb4 Bd6 Qa5 Rh3 Rd2 Rd1 a1Q h6+ Kf6 Rc7 Qa2 Bb4 Rd3 Rd2 Qd1 Rg3 f1B Rg5 Qga7 Rh5 Re3 Rd3 Rg7 Rb3 Qdd3 Rc3 Rd7 Rg5 Rg8 h8Q+ Rgg7 h7 Bg2 Nd4 Rg3 Rh5 Rg5 Nf3 Bf1 Qf8+ Rgf7 Qe7+ Kg7 h8B+ Kg8 Qf6 Rh7 Bg7 Bg2 Bgf8 Rh6 Bfc5 Bh3 Bd4 Bf5 Bb7 Be4 Ba8 Bd5 Kh3 Ng3 Kg2 Ne2+ Kf2 Kh7 Nb2 Bdb3 Nc4 Rg3 Rf5 Rg5 Be4 Bd6 Rd5 Be5 Rdc5 Kg8 Bd5 Kh7 Qf4 Kh8 Qf6+
2rQq2R/Qn2kPK1/2b1r3/3Qr1P1/1b1qn3/N2Nn3/P4brN/Br3BR1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 e5 Ke3 b5 Ke4 c5 f4 h5 d4 b3 g4 b2 f6 h3 f7+ Ke7 g5 h4 f5 c4 Be3 h2 Nd2 b1R Qc2 h3 Qd1 c3 Qc2 b4 Qc1 b3 Bf4 c2 Ngf3 b2 Bg3 Rh6 Nh4 Nd7 Ng2 Ra5 Nf4 Bb7 Rg1 h1Q+ Nf3 h2 Nd3 Qe8 Qe3 c1R Bf4 Rc8 f6+ Kd8 Kf5 e4 Bb8 Bb4 f8N Nc5 f7 Bc6 d6 Nf6 d5 Ng4 d7 Ke7 Be5 Nb7 Qa7 e3 Ne6 e2 Nc7 e1B Nb5 Bf2 Na3 Re6 Bg7 Rd1 Be5 b1R d8Q+ Kf8 d6 Rd2 d7 Ne3+ Kf4 Qg2 Bb2 h1N Nh2 Qd5 Be5 Nd1 Kf5 Rb5 Qda5 Qd4 d8Q Re2 Qd5 Ke7 Bh8 Rc5 Bg7 Rcc2 Q5b6 R6e5+ Kg6 Ng3 Bh8 Ne3 Kg7 Rd1 Rb1 Ne4 Rb3 Rb1 Rc3 Bd7 Rc6 Ree1 Rh6 Bc6 Rh4 Bg3 Qba5 Rg2 Rh3 Bf2 Qdd8+ Ke6 Qad5+ Kf5 Q8a5 Nf6 Nb2 Qc3 Nd3 Nd1 Qdd8 Rc5 Ne5 Ke6 Kh6 Qa1 Qdb6 Ke7 Nd3 Re6 Qbb5 Rf5 Qd5 Ne4+ Kh7 Ne3 Qad8+ Kf8 Bd4 Rfe5 Rh5 Qc3 Rh4 Qc4 Ba1 Qc5 Qda5 Ke7 Kg7 Qc3 Rh8 Qd4 Qad8+
4R2K/1P2nQn1/2qPQ1Bk/n1q5/N3nr1r/2NR2r1/Nq1BnP2/b2b1Q2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kg6 Kd4 c5+ Ke5 h5 d4 a5 b4 h3 g4 c4 d6 h4 g5 e3 d5 a4 b6 c3 d7 c2 b5 e2 b7 e1R+ Be3 c1N d6 a3 b6 h2 Nh3 a2 Nc3 Ne2 Bc1 Ra3 Be3 Bg7+ Ke6 Qc7 Qd5 Nc6 b8N Na5 b7 Qc6 Rg1 h1N Rc1 a1Q Bd2 Nhg3 Rd1 Qb2 Na2 Nh5 Qh1 Rg3 Nf4+ Kh7 Kf7 e5 d8Q h3 g6+ Kh6 Qb6 e4 Qe3 h2 Na6 Bg4 Nc5 Ne7 Na4 Qc5 Qef3 e3 Nd5 Be5 Qf6 Ng7 Ndc3 Bd4 Qg2 h1Q Qe6 Bh5 Qgh3 Qhc6 Bg2 Be5 Be4 Bf6 Rg2 Rg1 Bf5 Rf3 Rg4 Rgg3 Re4 Rf4 Re5 Nd4 Qf1 e2 Re3 e1N Rd3 Nef3 Re1 Rh7 Be4 Ne2 Kf8 Ngf5 g7 Ng5 g8Q Ng7 Bg6 Ne4 Kf7 Nd4 Kf8 Bd1 Qgf7 Ne2 Rd5 Ng1 Bc1 Qbb4 Qd7 Ng8 Bd2 Ng5 Re7 Ne4 Qde8 Ne2 Nb1 Ba1 Nbc3 Qb2 Rd3 Kg5 Qc8 Rh2 Re8 Kh6 Qd7 Ne7 Qe6 Nef5 Kg8 Ne7+ Kh8 Rh1 Nb6 Rh4 Nba4
2rn2Q1/1PPKQ1r1/2nQRP2/1qR1q1B1/2Nk1Nb1/2b2B2/4rrrq/6Rn b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 c4 a5 b4 d5 f3 h5+ Kg5 h3 g4 h2 c5 d3 b6 a4 c6 h4 f4+ Kd4 b5 e5+ f6 h3 f5 e4 c7 d2 b7 a3 b6 e3 Kf4 e2 g5 e1R g6 a2 f7 Qe8 f6 Re2 g7 Bb4 f8R Qb5 Qc2 d1R Bd2 Rh7 Qf5 Nc6 b8Q Nd8 b7 Ne7 g8Q Nec6 Na3 Bc3 Bg2 Rf1+ Bf3 Rff2 Re8 Rg7 Rc1 a1Q Qfh7 Bg4 Nc4 Qab2 Qc8 Rb8 Qd7 Rc8 Re6 Rg2 Qg6 Ref2 Rc2 Qa1 Qe7 Qe1 Kg5 Qe5+ Kh6 Re2 Bg5 Rd2 Q6f7 Bb2 Qd7 Kd3 Rd6 d4 Ne2 Ba1 Rf1 h1Q Rg1 h2 Ne3 Bb2 Rc5 Bc3 Qfe7 Rc2 Rf1 Qg1 Nc4 h1N Na3 Rd2 Nf4+ Ke3 Rc1 d3 Rb1 Rdf2 Qde6 Rh7+ Kg6 Qh2 Rg1 d2 Qd5 d1R Qde6 Re2 Nc4+ Kf2 Q6d7 Rf1 Qde6 Rh5 Kg7 Rh7+ Kf8 Rf7+ Ke8 Rg7 Nb6 Ke3 Kd7 Bh5 Qd5 Bg4+ Re6 Rff2 Qd6 Bb4 Nfd5+ Kd4 Nc4 Bc3 Nf4+
r3NqB1/PP2P1kb/1BqbRQ1r/5Qq1/q1n5/1nq5/1bRNK3/1N1R3r b - - 0 1 illegal: No possible last move
2K2b2/Q3qn1k/Q1R5/N1PRn1qB/2b2q1P/6nP/rBQ2rb1/R2N1r1q b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 e5 g3 b5 axb5 exf4 Nf3 h5 Ng1 h4 gxh4 Qb6 Ra3 Qc7 Ra1 Qd8 Kf2 f5 Kf3 Kf7 e4 Kg6 b4 a5 c4 d5 b6 a4 b7 d3 e5 d2 b5 d4 h3 d3 e6 a3 c5 a2 b6 Nd7 b8R Kh7 e7 g5 e8Q g4+ Kg2 f3+ Kg3 f4+ Kf2 Nh6 b7 Nf7 Qc2 d1R Bd2 Qe7 Be3 Nde5 Qea4 Be6 Na3 Bc4 Qa6 Rd2+ Ne2 g3+ Kg1 f2+ Kg2 Rg8 Rc8 Rg5 b8Q Rf5 Rd1 a1Q Nc3 Qc1 Be2 f1N Rc6 Ra7 Bd4 f3+ Kg1 g2 Kf2 Ng3 Ke3 f2 Bh5 Ra8 Qba7 f1B Rg1 Rdf2+ Rd2 Nh1 Nd1 Ng3 Bb2 Rf6 Rh1 g1Q Kd4 Qh2 Rg1 Bg2 Rh1 Rf1 Rg1 R6f2 Rh1 Bb3 Nc4 Ba2 Na5 Bc4 Re2 Qcg5 Re4 Bb5 Kd5 d2 Rg1 Nf5 Rh1 Qhf4 Rg1 Ng3 Rh1 Qd8+ Ke6 Be2 Rd4+ Bd3 Nc3 d1Q Rd7 Qdf3 Nd1 Q3e4 Rg1 Bc4+ Rd5 Rb8 Ba1 Rb2 Rh1 Ra2 Bb2 Qa8 Rg1 Ng4+ Kd7 Nge5+ Kc7 Qe8 Kb7 Qee7+ Kc8 Bf3 Ne3 Rc1 Re1 Bh1 Re2 Rcf1 Re1 Bf3 Ra1 Bh1 Rg6 Qg2 Nd1 Qh2 Qc3 Bg2 Qc2 Qh1 Rc6+
2N3K1/Pq1n2Qr/n1B1P3/1n2bk2/QQ4R1/R1bnr2r/3nNB1P/3n1b1B b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Ke7 Kg3 c5 Kf4 f5 Kg5 b5 Kg6 c4 e4 f4 d4 g3 a4 g2 e6 c3 e5 b3 a5 b4 a6 f3 a7 f2 Qd2 c2 Bc4 f1N Qe1 b2 Ra4 b3 Qd2 Qc7 Qf4 Ne3 Ra1 Qb7 Ra2 Na6 Qg5+ Nf6 Na3 b1N Nb5 b2 Nd6 Nd2 Ra3 b1N Ne2 Rh3 Rg1 Nd1 Qh6 Nd7 Kh7 g5 Kg8 g4 Qg7+ Kd8 Bb3 g3 e7+ Kc7 e8B Nbc3 e6 Nb5 Bb2 c1N Bc2 Rh7 Be4 Nd3 Bc3 Be7 Bb4 Kd8 Bc5 Bf6 Bf3 Be5 Be4 Nb6 Bc6 Bd7 Nc8 Be8 d6 Nd7 Rh1 g1B d5 Bgd4 Rg1 Bc3 Bh1 g2 Bf2 Rh3 Re1 g1R Rf1 N7c5 d7 Rgg3 Rg1 Re3 Rg4 Kc7 Ne7 Kd6 d8Q+ Nd7 Qb6 Rc8 Qd4 Rc7 Qa4 Bf6 Qb4+ Ke5 Nc8 Kf5 d6 Bfe5 Qa4 N7c5 d7 Bg6 d8Q Nd7 Qh4 Be8 Rd4 Bh5 Nc1 Be2 Rg4 Bf1 Ne2 N7c5 Qgh6 Rh7 Qg7 Nd7 Qhe7 R7h4 Qc5 Rh7 Qcb4
1rQr1NB1/6N1/2bbP2r/B2N1bK1/1P1R1Q2/P1b1r1n1/krb1nq2/Q6R b - - 0 1 illegal: No proof kernel
2Q2r2/1qn1k3/2q2qNK/N1bB1bRQ/P3P3/2nBr1NR/2qq1Pb1/3q2B1 b - - 0 1 illegal: No possible last move, all moves rejected
3b1nn1/KN1n2R1/R2Q1B2/3Pr2q/3r1Qb1/2nN4/1bP2nPq/1nBB2Nk b - - 0 1 illegal: No proof kernel
1B3Rrq/8/Knk2r1P/3rnPQ1/1RQP1NR1/Nr3Bnb/3bb3/1n1r2N1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 b5 f4 c5 a4 e5 h4 g5 f6 c4+ Ke4 c3 Kd3 b3 a5 c2 f7 g3 d6 b4 Kc4 b2 Kb5 g2 d4 g4 a6 b3 h5 g3 a7 e4 h6 e3 Nd2 b1N Bd3 b2 Qe2 Nc6 Ra5 Nf6 Rh4 Rg8 Ra4 Rb8+ Kc5 Ne5 a8R Nd5 Ba6 Rb3 Rb4 Nb6 Qh5 e2 Kb5 e1R Ka5 Rf1 Qg5 Kc6 Nc4 Bh3 d7 Rff3 Bd2 c1R Rg4 Rd1 Na3 Qf6 d8Q Qh8 Qf5 Be7 f8N Bg5 Ng6 Rf2 Ne2 g1R Qd3 g2 Rb8 Rgf1 Ng1 Re2 Be3 Rc2 Bc8 Rc5+ Ka6 Rd5 Bf5 Rf3 Be4 Rf2 Bf3 Rff1 Ne2 g1N Qe7 Rf2 Rf8 Rff1 Bd2 Rf2 Be1 Rf1 Bg3 Rf2 Nc3 Ne2 Bh2 Ng3 Ne2 Nd2 Qg7 b1B Ng1 Ba2 Qe7 Nb1 Qd8 Rfb2 f5 Bd2 Qg5 Rc2 Re4 Rcc5 Nf4 Rd6 Nd5 Rf6 Rg4 Rb5 Nf4+ Rd5 Ra4 Rb5 Rb4 Bc4 Qe3 Bcf1 Qd3 Be2 Rb2 Nec4 Ng6 Nf1 Bb8 Ne5 Nf4 Ng3 Rb3 Rc5 Rb5 Rc3 Rb4 Rb3 Qc4+
4b2K/N2R1rQB/k3r1P1/2q1qnbQ/7P/3n2BN/1P1Q2nn/1R1nn1qN b - - 0 1 illegal: No proof kernel
N2k4/1Rnr3Q/1r1Pn3/brP4P/Q1Qr2r1/n4B2/1bN1BK2/bb2BR1q b - - 0 1 illegal: No proof kernel
1QRr2rB/1b2K3/1bPPR3/q1R3r1/k1PbqnnQ/3B2N1/1b5B/bN1b4 b - - 0 1 illegal: No proof kernel
2kNnrb1/K1nR4/1P6/P4PN1/3r1Q1q/Brb3BN/Rr2rrB1/1q3q1Q b - - 0 1 illegal: No proof kernel
Bnkb2rN/4b3/P6B/b3qRNb/2nP3Q/1P3Q2/2qb3r/1bBqR1KR b - - 0 1 illegal: No proof kernel
KN2q1q1/2B3QR/2r4r/3rr2P/Pb1P4/kb2nnbb/R3NrB1/4Q1RN b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Ke4 e5 f4 g5 a4 b5 h4 b3 h5 g3 d3 g2 f6 g4 f5 b2 f7 g3 f6 c4 Nh3 Kc5 d4+ Kb4 d6 g1R Kd5 g2 d7 e4 Be2 c3 Qf1 e3 Bd1 e2 Na3 b1R Nf2 e1B Bf3 c2 Bd1 Ne7+ Kd6 Qe8 Kc7 Rb2 d8N Ra5 Rh2 Rh6 Ra2 Nd7 Rh1 Nd5+ Kc6 Ne3 Bf3 Ne5+ Kb6 Bh3 Kb7 Kb3 Qe2 b4 Nb1 Rd5 Ka8 Rf1 Qd1 g1Q Nc3 Qg8 Bg2 Nf3 Rg1 Bc5 Nh1 Bg3 f8Q Rf2 f7 Rb1 Rb2+ Ka3 Ne2 b3 Qg7 Bb4 f8R Ra1 Bd2 c1R Qe1 Rcc6 Rf7 Ra2 Rc2 b2 Ra7 b1B Rb2 Nf5 Bf4 Bc2 Bc7 Bb3 Rc2 Ne3 Rd2 Rce6 Rb2 Ree5 Rb7 Bc8 Nc6 Bh3+ Nb8 Ra1 Ra7 Rc1 Rd2 Rcc6 Rc2 Bc3 Ra2+ Kb4 Bb6 Nh4 Qg5 Nf3 Rh7 Bd2 Bc7 Bc3 Rd2 Ka3 Qg7 Bb4 Ra2+
Rb2NRNk/2qqPbB1/r1n2b2/1n4qR/2BP4/3bb2q/2Qr2P1/2KQQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 f5 b4 Kf7 d3 Kg7 Kd2 c5 d6 a5 b6 h5 e5 f3 d7 f2 b5 c4 b7 c3+ Kc2 h3 b6 a4 e6 h2 Bf4 a3 Kc1 a2 Bd6 h4 Bg3 c2 Nh3 f4 Qe2 f3 Be5+ Nf6 Na3 Bd6 Kb2 c1B+ Kc3 Be3 Ng1 h3 Bf4 Ne4+ Kb2 Nc3 Qc2 Qe7 Nb5 Rd8 Bh6+ Kh8 Ne2 Qg5 Rg1 h1Q e7 Qh2 Nf4 Ra3 Rh1 Nc6 b8R Ra8 Be2 f1Q b7 f2 Nd5 Qd1 Nf6 f1B Nc7 Qhf4 Ng8 h2 Rc1 Ra7 Ne8 Ra6 Ra8 Bc7 b8Q a1B+ Kb3 Be5 Qb4 Nb5 Rb1 Bad4 Qc3 Qfg3 Kb2 Bb8 Ra1 Qc7 Ra4 Bf6 Rf4 Bfd4 Rf7 Bf6 Rf8 Ne5 Qa5 Bb7 Qb4 Bd5 Qe1 Qd2 Kb1 Bf7 Kb2 Rc8 d8Q Nc6+ Qd4 Rd8 Kb1 Qc8 Qd5 Qa5 Qd4 Qac7 Qa1 Rd4 Kb2 Q8d7 Qad1 Rf4+ d4 Rf2 Bd3 Rd2 Bc4 Be2 Kc1 Bd3 Rf1 h1Q Rf5 Qg7 Rg5 Qhh3 Rh5 Qg5 Bg7#
b1Q4k/rr2Pbn1/b3n3/2bPPb2/1qRRn1n1/1B1N1q2/1K1B3N/5QNQ b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 dxc4 b4 f5 e4 Kf7 d4 Kg7 Kd2 a5 Kc3 c5 g4 h5 g5 h3 e6 a4 g6 h2 e5 a3 b6 f4 b5 f3 b7 a2 b6 h4 Kc2 h3 Be2 c3 Bb2 f2 Qd3 f1B Qf5 c4 Bd3 Ra7 Qf2 Nd7 b8N Qe7 b7 Ngf6 Qd2 Ne4 Ba3 Ndc5 Ne2 Rh7 Nc6 Kh8 Rg1 h1B b8Q h2 Kc1 c2 Kb2 c1N Qa5 N1b3 Qab5 Bhg2 Qc7 h1B Nb4 Bf3 Qbb7 Bh5 Nd2 Qd6 Rb1 a1N Qf7 Nc2 Rc1 Ne3 Bc2 Ng4 Nd3 Bhg2 Nf3 c3+ Kb1 Qb6 Nh2 Qb4 Bd1 c2+ Kb2 Bh1 Qd5 Bh3 Qf1 Rhb7 Rg3 Bd6 e7 Ne6 Ng1 Ng7 Rf3 Bc5 Rf4 Ng5 Qc6 N5e6 Qd5 Be4 Qc6 Bf5 Qh1 Bg2 Re4 Bf3 Rf4 Bc6 d5 Nd2+ Ka2 Rb5 Rd4 Ba6 Bb2 Rb8 Bc3 Ne4 Be1 Ba8 Bd2 Rbb7 Ka1 Ne8 g7+ Kg8 Rb1 c1Q Bb3 Qd1 Rc1 Qf3 Rcc4 Bf7 Kb2 Kh7 Rc1 Kg6 g8Q+ N8g7 Qe8 Kh7 Qc6 Kg8 Rcc4 Kh8 Qc8+
5Nrb/2KPb1n1/bB4P1/1Q1q1R1Q/3Qq3/1Pb2k1r/3B2n1/NBnnR2n b - - 0 1 illegal: No possible last move
B1r2r1Q/1rrP2Pq/2nkB1Nr/3n3q/1N3BP1/QRN1R3/1q5q/3bK1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Kd7 e4 f5 b4 c5 b6 a5 g3 h5 b5 a4 b7 f3 e5 a3 d5 f2+ Ke2 f4 b6 f3+ Kd2 h4 g6 h3 g7 a2 e6+ Kd6 e7 c3+ Ke3 c4 e8B h2 Ne2 c2 Kd2 c3+ Ke3 Qh4 Bg2 f1Q Bd2 c1Q Nf4 f2 Qb3 c2 Bh3 Nf6 Bc6 Qh5 Ng6 Bg4 Nc3 Qg1 Rb1 Bd1 Be6 a1R g4 f1R+ Kd3 R1a4 Qa3+ Rb4 Rb3 Qb2 Be3 Rf3 Kd2 Rh6 Bg5 Qg3 Re1 h1Q Re3 Qe5 Bf4 Ra7 Bcd7 Nc6 b8Q+ Rc7 b7 Q1h3 Ke1 c1R Qba8 Qhh2 b8N Qbc2 Q3a5 Rbb7 Na6 Be7 Qh8 Qb1 Nf8 Qh7 Nb4 Qb2 Qa3 Bd8 Bg5 Qeh2 Ng6 Rc8 Be8 Bb6 B8f7 Ne8 Bg8 Rf8 Bgf7 Nc7 Bf4+ Kc5 d6 Nd5 d7 Rc2 Ne5 Kd6 Bg6 Ba7 Be4 Bd4 Rh3 Bg1 Re3 Rc1 Ng6+ Ne5 Bd3 Nf6 Ne7 Ra7 Nca2 R1c7 Ba6 Nd5 Ng6 Bf3 Bb7 Bd1 Ba8 Rab7 Bg5 Nc6 Bf4+ Qhe5 Nc3 Qh5 Bg5 Qeh2 Bf4+
n7/1PQ1kPr1/1B2Bbn1/Nn1bb1Qn/2q1R3/1r2b2K/R1P5/N1n1qQN1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 h5 f4 a5 Kf2 e5 Kg2 d5 b4 e4 b6 d3 b5 h3+ Kh2 e3 b7 e2 b6 e1B f6 h4 f5 d4 g5 a4 g6 d2 f7+ Ke7 g7 a3 Bc4 a2 Bb2 d3 Bd5 Na6 b8N Qc7+ Be5 Bb7 Bb3 Qc4 Bf4 Ra7 Bg3 Bd5 Nf3 Bf2 Qf1 d1Q Nc3 d2 Qg1 Qe1 Ne4 d1N Nfg5 Be3 Qf2 Nc7 Qf1 Na8 Nc5 Nc3 Nf3 Nb5 Ng1 Ra3 b7 Rh7 Ba4 Rb3 f6+ Kd8 Qf4 Bd6 Bf2 Be5 Qg3 Ne7 g8Q+ Kc7 f8Q Kd6 Qff7 Rg7 Nc6 Ng6 Qh7 Qd3 Na5 Qc4 Rb1 a1B Rb2 Ne7 Qf5 Ng6 Ra2 Bb2 Qg8 Bc3 f7 Ke7 Qd3 Bf6 Qf1 Bce5 Nf3 Nd4 Bd7 Nb5 Kg1 h2+ Kg2 Qcb4 Rg1 h1N Kh3 Qc4 Qg5 Ng3 Qc8 Ne2 Qc7 Nc1 Rg4 Bb2 Re4+ Be5 Kg4 h3 Ng1 h2 Kh3 h1N Be6+ Kf8 Na6 Ng3 Nc5 Rb1 Ncb3 Nh5 Na1 Rb3 Qc8+ Ke7 Qb8 Bb2 Qbf4 Be5 Qfg3 B3f4 Bb6 Be3 Q3f4 Bb2 Qb8 Be5 Qc7+
3Rnr2/PQ1qP3/r1Q4R/N1K2B2/1NRr2Pr/3q1rbn/4kN1B/1nn2b2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 g4 Kd6 d4 h5 e4 c5 a4 f5 a5 b5 a6 c4 g6 f3 Ke3 h4 g7 f4+ Kd2 f2 Nh3 f3 Ke3 b3 Ra2 b2 Bd2 b4 Bg2 f1Q Ra3 c3 Ra2 b3 Rg1 f2 Ra1 c2 Qc1 Nd7 Rh1 Ndf6 Na3 Nh6 g8Q b1R Qf7 b2 Qb7 Qd7 a7 Ne8 Rh2 Nf7 Ba5 Rh6 e5+ Ke7 d6+ Ke6 Bc6 Ng5 Nc4 Be7 Bc7 Qd3+ Kf4 f1R+ Nf2 h3 Be4 Rh4 Ra4 Ra1 Na5 b1N Rc4 Ra4 Rh1 h2 Bb8 Bd8 Bh7 Bc7 d5+ Kf7 e6+ Kf6 e7 Ra1 Rg1 h1R Bf5 R1h3 Rh1 Rd1 Rh2 Rd2 Qh1 c1N Qc6 Ba6 Qb7 Kg7 Ke5 Rf3 Qg2 Nh3 Rh1 Qc6 Ke6 Qb5 d7 Kh6 d8N Kg5 Ndc6 Bg3 d6 Ra4 d7 Rda2 Rf4 Rd4 d8R Ra1 Nb4 Qd7+ Ke5 Bc4 Nb3 Ra6 Na5 Qc3 Bd6 Bf1 Rh2 Re4+ Kd5 Qd3+ Kc5 Rd4 Re4 Rb8 Re2 Ra8 Rc2 Rb8 Bc7 Rc8 Rc4 Rb8 Bb6 Kf4 Bc7+ Ke3 Be5 Ke2 Rh1 Re3 Qgc6 Rf3 Bh8 Ng1 Qa8 Rh3 Nc2 Bc7 Be5 Rbb6 Qd5 Rf6 Nb4 Rf8 Qdc6 Rh7 Rh4 Nh3 Bh2 Bg3 Qab7 Rhh8 Rh6 Rh7 Rd6 Rh4 Rh6
2Rn3k/2QrnN1b/1bQ2q2/2R1n3/q2qQBPP/bn5B/KN1PR3/5br1 b - - 0 1 illegal: No proof kernel
bNr1B1Qn/b3qQrr/5qR1/2Nn2R1/2bP4/3B1k1P/1P4b1/1nB1N1Kn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 c5 b6 g5 b7 a5 h3 f5 Be2 f3 Ra3 a4 Qb3 f4 Qb5 g3+ Kf1 g2+ Kf2 c4 Re3 g4 Bd3 c3 Be2 a3 Qe8 a2 Qa4 a1N Qa6+ Nc6 b8N c2 Bf1 g3+ Ke1 f2+ Ke2 f3+ Kd3 Qe7 Na3 Nb3 Qa7 Ne5+ Kc3 Rh7 Nb1 Nf6 Nd7 Bb7 Bd2 c1N Nc5 Rc8 Bd3 f1B Na3 f2 Nc2 Nf7 Nf3 g1Q Ne5 g2 Nd7 Nh8 Nb8 Ba8 Rg3 Ne2+ Kc4 Qh2 Rg5 g1R Bc1 Ng3 Qb7 Rg2 Rg1 Nd2+ Kc3 Be2 Qb3 f1B e5+ Kc7 e6 Kd6 Qa2 Nh1 Qa7 Qf4 Rg6 Qe8 e7 Nb1+ Kc4 Qf7 e8B Qe7 Qb7 Rg4 Qb3 Bg2 Qb7 Qd8 Qf7 Qe7 Rg5 Rg7 Rg6 Rh4 Rg5 Rhh7 Rg6 Kc7 d6+ Kb6 Rg5 Nd5 d7 Qff6 Rg6 Kc7 Rg5 Kd6 d8Q+ Qd7 Qa5 Be7 Qa2 Bd8 Qg8 Bb6 Qa7 Qde6 Qaf7 Ba7 Rg6 Bgf1 R1g2 Qee7 R2g5 Bf3 Be2 B1g2 Kd3 Bg4 Bf1 Be6 Ke2 Ne3 Ke1 Bc4 Bd3 Nd5+ Ne6 Bf3 Kf1 Bg2+ Kg1 Nb4 Rg3 Kd5 Bf1 Ke4 R3g5 Nd5 Bd3+ Kf3 Nc5 Bc6 Rh6 Bb7 Rhg6 Ba8 Ne1+
1n3q2/N2br3/1b1r2B1/q3bQ1B/P1R1r2n/1Q2nPB1/P1bRQ2K/N2nk3 b - - 0 1 illegal: No possible last move
4b3/2q5/1n1R2Br/bqn3kr/PR1qR2P/q2B1r2/QB1NbPb1/1K2Q1N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 Kf7 a4 Kf6 c4 g5 Kc2 b5 h6 d5 h7 e5 c5 e4 c6 b3+ Kb2 b4 c7 g4 Bd2 e3 Bc1 e2 Nc3 e1R Nce2 d3 Nc3 d4 Bh6 d2 Rb1 g3 Nce2 d3 Nf4 g2 Nf3 g1Q Ng2 Bd7 c8B Ra5 Ngh4 Na6 Qc1 d1B Qc4 d2 Be2 Be8 Bb7 Ne7 Qc1 Nc8 Ng5 Qg3 Bd3 Qdc7 Nh3 Re3 Nf3 Nc5 Re1 Nb6 Nhg1 Be2 Bbe4 d1Q Nd2 Rf3 Bg7+ Kg5 f6 Ra6 Ka1 b2+ Ka2 Be7 f7 Bd8 f8Q Qgd6 Qg8 b3+ Ka3 Qd4 Bg6 Qc2 Qe6 Qcc3 Qc2 Ra5 Rbd1 b1B Qa2 Qa1 Qe4 b2 Be5 Rhf8 h8R R8f6 Rh4 Bc2 Rf4 b1Q Qe3 Qb5 Rh4+ Qf4 Bb2 Bb3 Qe7 Bd5 Qe6 Qfe5 Rb4 Qd4 Qe7 Rh3 Qe6 Bg2 Qe4 Rh6 Qe7 Bef1 Re4 Be2 Qe6 Nb7 Kb3 Nc5+ Kc2 Rf7 Bc1 Qac3+ Kb1 Rf3 Bb2 Qa3 Rf4 Bef1 Qe1 Be2 Rh4 Ra6 Re4 Rh5 Bh7 Nc4 Bf5 Rah6 Bg6 Nb6 Rc1 Na6 Rc6 Nc5 Rd6 Qcc6 Bc1 Nbd7 Rh4 Ba5 Re4 Qc7 Bb2 Nb6 h4+
1r1N4/1qb2br1/4nQnK/kQ2PR1P/bb2P2R/n4q2/3QBrr1/B5NN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 g5 Kg3 a5 b4 f5 c4 d5 e4 Kd7 h4 Kc7 h5 Kb6 Nf3 f4+ Kf2 g3+ Kg2 d3 Ra2 d4 Ne1 f3+ Kg1 g2 Kh2 g1R Ra3 f2 Qe2 d2 Ra2 d1B Ra1 a4 Be3 a3 Nd3 a2 Nd2 g4 Nf3 Ba4 Qd2 Be6 Be2 f1R Nf2 Qd5 Rc1 Rg3 Ng1 a1N Rb1 Na6 c5+ Kb7 b6 d3 b5 Ra7 Rc1 Nc7 Bd4 Nc2 Ba1 Na3 Re1 Bf7 c6+ Ka8 Rb1 Ne6 c7 Kb7 c8N Bd6 Ne7 Bc7 Nc6 Ne7 Rb3 Rb8 Nd8+ Ka8 Rc3 Qb7 Rc2 Ng6 Rc6 Nc5 Rf6 Ne6 Rf4 Re3 Rf6 g3+ Kh3 g2+ Kg4 Rg3+ Kf5 Rg4 Rh4 Rg3 Qf4 d2 Nh1 d1Q Qf2 Nef4 Qe1 Rf2 Qd2 Rgf3 Kg5 Ne6+ Kh6 Rg3 Nh3 g1B Rf5 Bh2 Ng1 Rgg2 Bf1 Qf3 Be2 Ra5 Qc1 Bg3 Qd2 Qd5 b7+ Ka7 Qb4 Kb6 Qd2 Rba8 b8Q+ Qb7 Qc8 Rb8 Qcd7 Ra7 Qe7 Bf4+ Qg5 Be3 Qf4 Bc5 Qg5 Bb4 Qf6 Ka5 b6 Qc6 b7 Rba8 b8Q Qb7 Qc8 Rb8 Qcd7 Qb6 Q2d6 Be8 Qd6e7 Bcd6 Qh8 Rc7 Qg5 Qb7 Qc6 Rd7 Qhf6 Rg7 Qd7 Bc7 Qgd2 Bf7 Qb5+
R2R4/1N3n1q/1K3Pqr/B1n1QqNr/2B1b2P/b1bQ1r2/1kPNq2Q/2b5 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 d5 h4 g5 b4 a5 f3 d3 f6 d2 f7 a4 b6 d4 b7 d3 b5 g3 b6 a3 Ra2 g2 Rh2 g4 Rb2 a2 Kb5 Kd4 f4 a1B f5 e5 f6 e4 Ra2 e3 Be2 g3 Na3 Kc3 Bf1 e2 Rb2 e1R Rh3 Re3 Qe1 Nh6 Qe2 d1Q Ra2 d2 Rb2 Na6 b8N Bf5 b7 Qe7 Nf3 g1B Rh2 g2 Nc4 Bh7 Qf2 Be4 Nd7 Re8 Bd3 Qf1 b8Q d1Q Ra2 Rd8 Nc5 Rd5 Qbg3 Rh5 Kb6 Rh7 Rh3 Qde2 Nb7 Bh2 Ba3 g1Q Qb8 Be5 Ncd2 Bb2 Qh2 Qg6 Ng5 Qff5 Bc5 Bd4 Qbe5 Bc1 Bb5 Qed7 Ra4 Be7 f8Q Kb2 Qd8 Bc3 Bb4 Bf8 Bc4 Rh8 Ba5 Ba3 Bb4 Nc5 Ra8 Qdg7 Ba5 Nf7 Qdd5 R8h6 Rg3 Q7h7 Rg4 Rf3 Qd3 Bc6 Rd4 Be4 Rdd8
1R1BK1B1/r1NQ1QNq/2bq1PPQ/nR1r2NP/6r1/2kq4/1b2n1q1/2r3b1 b - - 0 1 illegal: No proof kernel
5q2/1q4n1/1P1b3K/RrrQ1Q2/BB3PkN/1q3nPb/N4r1q/RrB1R1n1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 h5 Kf4 a5 Kg5 e5+ Kg6 c5 f4 a4 d4 h3 b4 h2 d6 Ke6 d7 a3 g3 a2 b6 c4 b7 h4 b5 e3 b6 h3 Bd3 c3 Qf3 e2 Qc6+ Bd6 Qb5 e1R Bc2 e4 Qf1 e3 Qa6 e2 Bb2 Rh5 Nf3 Nf6 Ng1 Rb5 Nf3 Nc6 b8R Ne5+ Kg5 Ne8+ Kh5 Ng7+ Kh6 Qf8 Ba4 Kf5 d8B c2 d5 c1R Bc3 Kg4 Nfd2 Nf3 Be7 Ng1 Bb2 Rcc5 Nc3 Rb1 Bc1 e1N Qa5 Nef3 Rb7 Be6 Ra7 Re8 Qa6 Rd8 Qc8 Re8 Ra5 Bf5 Bf6 Re2 Be7 Rf2 Qe6 Ne2 Rf1 h1Q Re1 h2 Qf6 Neg1 Qe5 Bc7 d6 Qg2 d7 Bd6 d8Q h1Q+ Bh4 Qhh3 Qa8 Qhh2 Qad5 Bd3 Qee4 Bf1 Qed3 Qgh1 Q3e4 Bh3 Be7 Nd4 Nf3 Q1g2 Nh4 Qf3 Ne2 Qb3 Qd3 Ndf3 Nc3 Rbb2 Rb1 a1Q Qh7 Qaa3 Ra1 Rb1 Na2 Qa8 Bf6 Qb7 Bc3 Qab2 Bb4 Qf6+ Ng6 Qd8 Nh4 Qf8 Qhf5+
b1rNk1rn/1R1B1n2/1P2BbbN/BKnN4/1QP5/q5Q1/1r2P1n1/1rq4R b - - 0 1 illegal: No possible last move, all moves rejected
1n1BQ3/3brPrB/1Qq1Rn1q/1Q6/3qrNnb/3nPK1P/3N3r/1k3N1R b - - 0 1 illegal: No proof kernel
n1n4q/2b1Pr2/1N4BQ/R2qNPP1/Kbr1rqBk/Q4r2/1q6/1RB3Qb b - - 0 1 illegal: No proof kernel
bq1nQ1nb/r2P1rBK/2b1N3/3r2P1/1NBbknQ1/PB4q1/3RRr2/7Q b - - 0 1 illegal: No possible last move
n2n3b/3PBP2/NB1bbr1n/4R3/K3Bn1N/1PR3Qr/1R3rqk/1Qb4q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 Kf7 g4 Kf6 d4 e5 Kd2 a5 Kc3 c5 Kb3 h5 b6 a4+ Ka3 c4+ d6 e3 b3 c3 f5 Kg5 f6 Kf4 b7 Kg3 d5 e4 g5 c2 g6 e2 f7 e1N g7 e3 Bb2 c1B Nh3 e2 Nc3 Ng2 Nf4 e1N Ng6 h3 Na2 h4 Rb1 h2 Ba6 h3 Kb4 a3 Ne5 Ne3 Bc4 N1g2 Bf1 Nh6 g8Q+ Qg5 Bd3 Be6 Re1 h1Q Bd4 h2 Ng6 Ra6 Be4 Nf4 Rb2 Nc4 Nh4 Nb6 Qg6 Na8 Bb6 Kh3 Qc2 Be7 Qb1 Nc6+ Kb5 Qg4 b8R Qgg2 d7 Bd6 Nb4 a2 d8B a1B Be7 Nd8 Rc8 Ra2 Rc7 Rg8 Qg5 Rg6 Na6 Rf6 Ree2 Qe1 Rc6 h1R Rc3+ Kh2 Ree3 Rf1 Qe5 Rf2 Qg5 Qeh1 Qg3+ Kg1 Ree2 Ra4 Ree3 Rd4 Ree2 Rd3 Ka4 Re3 Qg8 Rh3 Qg3 Bb4 d6 Ba3 d7 Bd6 Qg5 Kh2 Re1 Rf1 Ree3 Rf2 Qg3+ Kg1 Bf3 Qh2 Rc7 Qh1 Rbc2 Rg6 Re4 Bd4 R7c3 Bh8 Re5 Rf6 Bc6 Bc7 Rb2 Bd6 Qgg6 Kh2 Be4 Nd3 Qg7 Nf4 Qg3+
3rb3/2Pnrq2/R1B1NB2/K1k1bRb1/1R4Q1/2n2Pnr/2b2NP1/2n1NqQ1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 e5 c4 Ke7 b4 Kd6 f6 a5 b6 h5 b5 a4 f3 e4 b7 e3+ Kd3 h3 b6 h2 f7 a3 Be2 a2 Nh3 h4 Rf1 h1R Kc2 d3+ Kc3 d2 Kb4 Nh6 Kb5 Qc7 Qa4 d1B Kb4 Bc2 Qb3 Be7 f8R Bg5 Rg8 Nf5 Bb2 Ng3 Rf8 Rh7 Na3 Re7 Nf2 h3 Rfb1 h2 c5+ Kc6 Bg7 d5 Rf5 d4 Qc4 d3 Qg4 d2 Bf6 Nd7 b8Q d1N b7 Nc3 Qa7 Rb8 Bd3 e2 Rb3 Qf4+ Ka5 e1N Rb4 Qc4 Be2 Qf7 Bc4 Nd3 Bb5+ Kc7 c6 Kd6 c7 Nc1 Bc6 Ra8 Rab1 a1B b8N Bb7 Na6 Rd8 Nc5 Ba6 Rff4 Bb5 Ne6 Bba4 Rb6 Bb5 Rbb4 Bba4 Nd4 Kc5 Rf5+ Ne5 Nc4 Nb5 Be8 Kd5 Ne6 Bd4 Bd7 Nc3 Nd3 Bc6 Nd2 B6a4 Bc8 Bc6 Ne4 Be8 R6b5+ Kc6 Ne1 Nd7 Rb7 Be5 R7b6+ Kd5 Ba6 Rg1 Bb5 h1Q Ra6 Rf1 Qb6 Qg1 Ra8 Qf2 Ra6 Rh1 Qa7 Qf1 Qg1 Rh6 Nf2 Rh3 Bc6+ Kd6 Nf4 Kc5 Ne6+
k1rQR2n/1rq4n/8/nBbNR2Q/1Pr2r1N/PNB4K/P2r2n1/1R1br3 b - - 0 1 illegal: No proof kernel
k1B5/1Bn4n/1q2N1R1/4P3/n3Q3/2bNnP1K/1R1PnrnB/b2QbbQr b - - 0 1 illegal: No possible last move, all moves rejected
k2K2NB/3nRR1r/PN3Q1r/1rr2nn1/n3b1Qn/4PB1q/1Q2nbP1/3R4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 f5 a4 b5 d4 Kb7 g6 h5 g7 b3 d6 h4 d5 c4 a5 c3 d7 f3 Ke6 h3 d6 b4 Qd4 c2 Bh6 c1N Qc3 b2 Ra4 h2 Qc2 b3 Rd4 f2 Rd5 f4 Rf5 f3 Bf4 Nh6 g8Q Qh4 Qc5 Rh7 Qc4 Qh3 Qa4 Nf7 Na3 b1N Qg4 b2 Be5 Nc3 Nc4 b1R Nb6 Rb5 Qc2 Na4 Qb2 Ng5+ Kf6 Ka7 d8Q Bb7 d7 Bc5 a6 Be4 Qh8 Be3 d8R Bc5 Re8 Nd7+ Kg6 Be3 Qf6 Rc8 Re7 Rcc5 Bc3 Bd2 e3 Be1 Bc4 f1N Bd5 f2 Ne2 Ng3 Nf4 f1N Nh5 Nd2 Rf1 Bf2 Rd1 h1R Bd4 Bc2 Bf3 Nce2 Be5 Be4 Bc3 Ne6 Bd4 Rh6+ Kf7 Ng5+ Ke8 Rh7 Kd8 Rh6 Rfe5 Nf5 Rf7 Rh2 Ree7 Rh7 Qg6 Kb8 Bh8 Rh1 Nc4 Ka8 Nf6 Rh6 Ng8 Rh2 Qgf6 Rh1 Qf4 Rh7 Bh5 Ndf3 Qg4 N3h4 Nb6+ Kb8 Qa3 Qf3 Ra1 Ng6 Qf4+ Ka7 Bg4 R1h6 Rd1 Qh3 Bf3 Ngh4 Qg4 Kb8 Qab2 Ka7 Nd5 Ka8 Nb6+
r1Qbrn2/3P4/nb1Q1nq1/n1nN1B1P/2Pk1KB1/2N1B2b/Q3R3/3Rb1n1 b - - 0 1 illegal: No proof kernel
4Nr2/1r2RqB1/R3NQb1/5nbn/kN3BP1/b2pP2n/4q1QP/r1q2B1K b - - 0 1 illegal: No proof kernel
q2RrrbB/1b3Q2/B2n4/1nq2pr1/2P2P1P/n3Q1bK/2QBk1NR/1q1N4 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 hxg4 a4 e5 axb5 exd4 h4 Ke7 e4 Ke6 f3 Ke5 Kf2 f5 Kg3 g5 c3 d5 b6 a5 b7 d3 c6 d4 c7 d2 Na3 d3 Nc2 a4 Ne1 a3 Rh3 a2 Rh1 Bd6 Bg2 Ne7 Ba3 Rf8 Rc1 a1N Nh3 Nbc6 b8B Nc2 Kh2 g3+ Kg1 g4 Bb4 Na3 Ba5 Na7 Qe2 d1B Bf1 d2 Kg2 N7b5 Nf2 Kf4 e5 Bb7 c8Q Bb3 e6 d1Q Rh2 Qc2 Qc7 Nc8 e7 Qb1 e8Q Bg8 Qcf7 Be5 Bb4 Ncd6 Qc2 Ke3 Rd1 Qa5 Qee7 Qa4 Bc7 Rae8 Bd3 Qa8 Bba5 Nd4 Ba6 N4b5 c4 Bh7 Qb2 Bg8 Bd2+ Ke2 Qg5 Bf4 Qc2 Be5 Bca5 Bf4 Bac3 Be5 Kg1 g2 Qh6 Bg3 Bh8 Re3 f4 Ree8 Qhe6+ Ne4 Qc1 Nc3 Qb2 Ncb5 Rh3 Nc3 Qb3 Ncb5 Be3 Nf6 Nh1 Bf2+ Kh2 g1R Rd8 Ne4 Bd2 Rg3 Qb6 Ned6 Qc2 Rg1 Rf3 g3+ Kh3 g2 Qa7 Bg3 Nf2 Bh2 Qb6 Rf1 Nd1 g1Q Qd4 Qe3 Qdc3 Qc5 Rg3 Rg1 Rg2+ Kf1 Re2 Rg5 Qe3 Bg3 Rh2 Ne4 Qd4 Ned6 Ng2 Ke2 Qe3+
3r4/3B2Qk/bQ1RrP2/4Nrq1/3Bn3/1bP5/R1qPp2N/1nqnRQbK b - - 0 1 illegal: No proof kernel
1k5n/B3P1rR/4K1Bp/1b1P4/4nN1N/q2RNrqn/P1QbQbr1/2R4q b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 b5 Ke4 c5 Ke5 Kc7 g4 f5 e4 h6 d4 f3 g6 f2 g7 f4 g5 f3 g6 c4 Nd2 c3 Qb3 c2 Qd3 b3 Nb1 b2 Qd1 b4 Rh4 b3 Bg2 f1N Be3 c1B Qc2+ Bc5 Bf4 f2 Rh1 Qh4 Rh3 Qg3 Nd2 b1Q Ngf3 b2 Nh4 Nh2 Nc4 f1R Ne3 Nf6 g8Q Rf3 g7 Ra7 Qe6 Bd2 g8R Ba6 Rg7+ Nbd7+ Kf5+ Kb7 e5 Kb8 d6 Rg8 d5 Qh1 Rh7 Ne4 Rc1 Nf8 d7 b1Q d8N Qb2 Qe8 Ng4 e6+ Rc7 e7 Ngf2 Qh5 Ng6 Ke6 Qa3 Bd6 Bd4 Bc5 Bb5 Qe5 Rg7 Ba7+ Kc8 Bf1 Nh8 Bd3 Rc3 Nc6 Bc5 Nd4 Rb3 Ne2 Rb2 Nf4 Kb7 Rh2 Nh3 Rg2 Bb6 Rgg1 Bd4 Rgd1 Bc5 Neg2 Bf2 Ne3 Nd6 Bg6 Ne4 Qec7+ Ka8 Q7c4 Kb7 Qe2 Ka8 Bc5 Kb8 Bd4 Bc3 Rd3 Bd2 Bb6 Rb1 Rg1 Rc1 Rg2 Rg1 Bd4 Bfe1 Rf2 Rg2 Rf1 Bf2 Rc1 Qb3 Bb6 Qa3 Ba7+
q4Bn1/P1b1qrQb/n6P/4NrnN/Kp2rRqb/6R1/P1B1Q3/1N1Bk3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 b5 Kb3 g5 h4 f5 e4 c5 h5 f3 a6 g3 h6 c4+ Kb4 c3 a7 f2 Qa4 c2 Rh2 f4 Bc4 f1Q Be3 c1B Rh3 g4 Ne2 f3 Bd3 g2 Qc2 g1Q Qa4 g3 Qa3 g2 Qb2 f2 Ng3 Rh7 Qe2 Qe7 Bc2 Rf7 Nh5 Bf5 Rg3 Bh7 Ka5 b4 Ka4 Na6 e5+ Kd7 d6 Kc6 d7 Kd5 e6 Re8 Bg5 Bf4 d8N Bc7 Nc6 Bg7 Bf4 Bf6 Bd6 Bh4 Ne5 Qc1 Bc5 f1R Bd6 Qe1 Bc5 Qd8 Bf8 R1f5 e7 Qc8 Bd1 Qh1 Bc2 g1N Bd1 Nf3 Bc2 Rd8 e8B Ng5 Bb5 Qe6 Bbd3 Qe7 Bd1 Re8 B3c2 Qd2 Na3 Qf4 Nb1 Kd6 d5 Kc5 d6 Kd4 d7 Qg4 d8Q+ Qd5 Qb8 Qdf3 Qc4+ Ke3 Qb7 Kf2 Qe6 Qh1 Qg2+ Ke1 Qg6 Rd8 Qg7 Rd4 Qf3 Qg2 Qd3 Re4 Qc4 Kf2 Qe2+ Kg1 Na3 Ref4 Rb1 Rc4 Rbb3 Rd4 Qb5 Kf2 Nb1 Qa8 Rbf3+ Ke1 Rf4 Re4 Qe2+
r2kB3/1nR2p1n/q1r1b1n1/r1b5/P1b2B1N/1n1P1R1P/1B2K1Q1/Qn2N2R b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 c5 e4 b5 h6 g5 h7 f3 d6 g4 e5 g3 e6 b3 e7 c4 h3 g2 Be2 b4 Na3 c3 Ba6 f2+ Ke2 f1B+ Kf2 c2 Ra2 b2 Rh2 b1R Nb5 b3 Qe2 b2 Rh1 Be6 Nd4 Qc8 Bb5+ Nd7 Ndf3 Nf6 Ne1 Qa6 Ngf3 g1N Nh4 Nf3 Ra3 Ne5 Rf3 Ng6 Qd1 Bfc4 d3 Rc8 Bf4 Rc6 Ke2 Nc5 Qc1 Kd7 e8R Nb7 Re7+ Kd8 d7 Rg8 h8Q Nh7 Qd2 Rc1 Qd4 b1N Qg1 Rh8 Qc3 Rc5 Qg2 Rh5 Bc6 Ra5 Qa1 Rd1 Kf1 c1N Kf2 Nb3 Ke2 Rc1 Bb5 Bg7 Bc6 Be5 Bb5 Bd6 Bc6 Kc7 d8B+ Kc8 Bc7 Bc5 Bce5 Kd8 Rc7 Bb6 Qh2 Bb5 Rc8+ Ke7 Bd7 Rc6 Qf2 Bc5 Bb2 Bbc4 Rc7 Ra8 Be8+ Kd8 Qg2
4B2R/nb1P2pN/1P5r/b1RrNnK1/QQB1rP2/5b2/1rRrn2B/3qk3 b - - 0 1 illegal: No proof kernel
2BnqB1r/1n1p1kPb/nr6/1P3RP1/R1K5/3N1bbN/RQ1Q1b2/1b3Qr1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 h5 Kd3 a5 b4 f5 e4 a4 g4 h4 c4 f3 e5 f4 b6 f2 e6 f3 b7 h3 e7 h2 c5 a3 c6 a2 b5 Nh6 g6 Na6 b8Q Bb7 g7 Nf7 c7 Be4+ Kc4 d3 c8Q d2 g5 Bh7 Qg3 Rb8 Ba3 Rb6 Bh3 f1N Qcc7 f2 Qg2 Ng3 Qf4 f1R Nc3 Ne4 Nd5 Nec5 Nb4 Nb7 Nd3 Qc8+ Bc5 Nfd8 Qb3 d1B Qfd2 Re1 Qbb2 Bc2 Qf1 Bb1 Bg2 Qa8 Bf3 Kf7 e8R Bd6 Nh3 Bg3 Bf8 Qb8 Rg1 h1B Re2 Bg2 Bc6+ Bf3 Rgg2 Qe5 Rgf2 Qe8 Re5 Re2 Rh2 Rg2 Be4 Rg1 Re2 Nbc5 Bb7 Bf2 Bc8 Ncb7 R2e4 Bc2 Rae1 a1B R1e2 Bb1 Rf5+ Rf6 Qbb4 Be5 Qbb2 Bb8 Kc3 Bh2 Ra4 Bhg3 Kc4 Nb4 Qe5 Be4 Qe3 Na6 Rea2 Bh1 Qb2 Bf3 Rc5 Rh6 Qed2 Rb6 Rf5+
BQn5/4R3/2bQ1BKn/b4R1Q/3rkP2/qP1bnnPp/4N3/q1n1r1NN b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 Ke3 Kf6 Kf4 a5 d4 e5+ Ke3 Kf5 f4 c5 b6 h5 g3 c4 d6 h3 b3 h4 d7 h2 d5 c3 b7 c2 d6 a4 Nf3 h3 Qe2 a3 Qd2 a2 Ba6 Nh6 Qb4 Qa5 d8N Qa3 d7 Nc6 b8Q Na7 Bb2 c1N Qc3 Bb4 Bc4 Ba6 Nc6 Re8 d8Q Ba5 Nbd2 Nc8 Re1 h1B Bd5 Bd3 Qc5 Ra7 Qdd6 Rd7 Ng1 Bg2 Rb1 a1Q Bc3 Re6 Rb2 Bf3 Rc2 Bh1 Na7 Re8 Nb5 Ree7 Ba8 Rd8 Qdc7 Rd4 Q7d6 Re8 Bb2 Bg2 Nc3 Bf3 Nce2 Re6 Kf2 e3+ Kf1 Bd5 Ne4 Bc6 Nf2 Re7 Nh1 Ke4 Rd2 Kf5 Rdd1 Bde4 Nc3 Rd3 Qcd4 e2+ Kf2 Re8 Rf1 e1N Q4c5 Nc2 Rfe1 Rd5 Rd4 Bd3 Kf3 Re7 Rb4 Re6 Rb5 e4+ Kf2 e3+ Kf3 e2 Qba7 Nf7 Qab8 Kg6 Kg4 Nh6+ Kh4 Kf5 Kh5 Re8 Nd1 Re4 Bf6 Re3 Nc3 Re6 Rf1 e1N Rf3 Ree5 Re3 Rd4 Qcd5 Nf3 Qf7 Rc5 Re7 Re5 Qe8 Ne3 Qf7 Nd5 Qe8 Re1 Nce2 Ne5 Qf7 Ke4 Kg5 Ne3 Qh5 Bd2 Ra7 Nf3+ Kg6 Bc3 Rf5 Ba5 Re7+
1N5b/1bK3Br/b2r2qR/R3p1P1/5PN1/P3r1nQ/Bk1r1BQr/nq4Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 c5 g4 h5 d4 b5 d6 b3 Kd5 b4 d7 b2 f3 b3 a3 c4 Bd3 c3 Nd2 b1R Nh3 c2 Re1 b2 Bf1 Ba6 Bg2 Qe8 d8Q Nd7 Kc6 Nc5+ Qd7 Qg6 d5 Nh6 d6 Rd8 Rf1 Ke5 g5 Kd4 f6 Kc3 f7 e5 f4 Nb3 Nc4 Rh7 Rh1 Nf5 Be3 c1R Bf2 Bg7 f8B Bh8 Nb6 Ng3 Bg7 Rc2 Kc7 Rd2 Qg1 Re1 Rd1 b1Q Bd5 Na1 Ba2 Kb2 Qg4 Re4 d7 Re3 Rc1 Rd6 Rc5 Rd2 Ra5 Rd6 Be1 Rd2 Nf2 h3 Qe6 h2 Ng4 h4 Bf2 h3 Qf5 Re8 d8Q Re6 Nd7 Rb6 Qg2 Rbd6 Rd1 h1R Nb8 h2 Qdf8 Rf6 Qc5 Rfd6 Qd7 Rhe1 Rc1 h1B Qa7 R1e2 Rc6 R6d4 Re6 Rd6 Qc5 Qgc2 Rh6 Qg6 Qh3 Bhb7 Qdc6 Re1 Q6d5 Rh1 Qdg2 Rh2 Qb6+ Rb3 Qe3 Rbd3 Qe1 Re3 Qeg1
2R2QNr/8/bQ3bRp/K2B3P/PN1qr2n/B4qn1/N1Pb2b1/2kbQq2 b - - 0 1 illegal: No possible last move
3Q1rn1/1k1bn3/qR2N1P1/1N3Q1r/P3bp2/bb1BbPN1/R4Bn1/K2Bq3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 c3 bxc3 hxg5 Ra3 Rh6 Ra7 Rh1 Ra8 a4 b5 e4 d5 g4 Kd7 g6 Kc6 e6 f5 e5 h5 g7 b4 g5 c2 Kd2 d4 g6 f4 f3 h4 e7 h3 e8B+ Bd7 e6 b3 e7 h2 Ba6 d3 Kc3 d2 Kb2 Rh5 Ra2 Qc8 Bb5+ Kb7 Ra3 c5 Ne2 c4 Qe1 d1B Bf7 c3+ Ka1 Nc6 e8N Nce7 Be3 c1N Ra2 c2 Nbc3 Nd3 Nc7 c1B Bf2 Be3 Ng3 Rb8 Qg1 Ne1 Bd3 Ng2 Ne6 Ra8 Nb5 b2+ Kb1 Qc4 Qe1 Qc8 Qa5 Bb3 Rc1 h1Q Rg1 Nf6 g8Q Qc4 Qh8 Nfg8 Qd8 Qc6 Qf6 Qa6 Rc1 Qe1 Qf5 Bd1 Rc6 Rc8 Ra1 Rb8 Ka2 b1B+ Kb2 Rc8 Ra2 Bb3 Ka1 Rb8 Be2 Be4+ Bd1 Nd5 Be8 Ba3 Bf7 Nde7 Rb6+ Ka8 Ng5 Rc8 Bc4 Rb8 Bd3 Rc8 Rc6 Kb7 Ne6 Rb8 Qa5 Re8 Qd8 Rf8 Rb6+
3Nb1R1/3n2Bb/r1BnbPP1/1B1R2qQ/2QrqN2/r2b3Q/pK3bP1/5k2 b - - 0 1 illegal: No proof kernel
N5bk/3qR1Q1/B1P3KP/b1Q1bR2/n2rqPb1/B2N1p1R/1n1nB3/r5b1 b - - 0 1 illegal: No proof kernel
Q2nbQK1/1r2B2R/1pNrQ1b1/n3P1Bk/R2R1b2/b2b1P2/1P5q/2rq2N1 b - - 0 1 illegal: No proof kernel
1Q5r/1B2K1Rp/Q1r1Q3/3RbPBr/3NNqbR/krPP1q2/1n1b1n2/1r6 b - - 0 1 illegal: No proof kernel
BBK1Q1k1/2Q3P1/2rRN3/1r2P2r/n1QqnPbr/2q4r/1pNR3b/2Nb4 b - - 0 1 illegal: No proof kernel
1k1n1n2/3N2p1/1P5r/2RRnqBP/1bR1N1n1/4QbPK/Brqn2r1/2B1Q3 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 exf4 a4 h5 g3 b5 axb5 h4 Qc2 h3 Qe4+ Be7 Qf3 Bf8 Qg2 hxg2 Kf2 Kd7 b4 f5 d4 c5 h4 Kc7 e4 a5 h5 c4 e5 a4 e6 c3 e7 f3 e8Q c2 Ra2 f4 Qe4 a3 Bc4 Rh6 Nc3 Nf6 Rh4 Bb7 Nh3 g1N Qe3 Nc6 d6+ Kb8 b6 Qc8 d5 Nd8 b5 Qf5 d7 Nh7 Ne4 Bb4 d6 Nf8 Nhg5 Ra5 Rb2 a2 Nf6 a1R Ba2 Rb1 Nge4 Ra3 Rb3 Rb2 Rc3 Ba8 Kf1 f2 Kg2 f1N b7 Nf3 Rc5 N1h2 Rg4 Rab3 Kh3 Ne5 Qe1 f3 Qe3 Ndc6 d8B f2 d7 f1N Be7 Nd2 d8R+ Qc8 Rd6 Nd8 Rdd5 Qf5 Qe1 Rf3 Qe3 Rf2 Qe1 Rg2 Qe3 Ka7 b6+ Ka6 b8Q Bc6 Qd6 Kb7 Qe6 Kb8 Ng8 Bb7 Bg5 Ba8 Ngf6 Bb7 Kh4 Ba8 Rf4 Nhg4 Kh3 Bc6 Nc3 Bb7 Rfc4 Ba8 Rd7 Be4 Rdd5 Bf3 Nce4 Rb3 Bb2 c1Q Qe1 Qc2 Bc1 Rb2 Qe3 Ned7 Qe5+ Kb7 Q5c3 Nde5 Qe1 Ka8 Qce3 Kb8 Nd7+
q5qN/3n1kp1/P3N1b1/QBP2qq1/2BQrn2/1R1q2B1/3Prr2/1Q2b1KR b - - 0 1 illegal: No possible last move, all moves rejected
r2B2R1/1R1KNpQ1/br1b1b2/1N1q2qr/r2Q3P/2rRPPn1/3Qn1B1/7k b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 hxg4 a4 e5 axb5 exd4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 h4 Ke4 e3 d5+ Kb4 a5+ Ka4 g5 c4 d3 c6 d4 b6 d2 Kb5 a4 c5 g3 c7 g2 c6 a3 b7 d3 Rh3 a2 Na3 g4 Nf3 g1R Ne1 g3 Qb3 d1R Ng2 Kf3 Nf4 d2 Qa4 Ne7 Ng6 Nf5 Bb2 Rc1 Bf6 d1R Qa5 Qd7 Bd8 Rd6 Qa7 Rc4 Rd1 a1B Rd3 Ra4 Rh2 Re6 Rg2 Bf6 Qb6 Bc5 Ne7 Rh5 Qa5 Rh1 Qd2 Bb4 Rh2 g2 Kb6 g1Q Rg2 Qd5 Rg8 Bg7 Nb5 Qg5 Bh3 Bd7 c8Q Rc1 Kc7 Ng3 Bf1 Reh6 Bh3 Rc2 Be6 Kg2 f3+ Kh1 Bh3 Rc3 Bf1 Bf5 Bh3 Nd7 b8R Ne5 Bf1 Ng6 Bg2+ Kh2 Rb6 Nf4 Rb8 Nfe2 Qe6 Qd4 Qe5 Qd5 Qd4 Bc8 Rb6 Ba6 Rb7 Qc4 Kd7 Qcd5+ Ke8 Rg6 c7 Rb6 c8Q Qh6 Qd1 Bf6 Qcg4 Bd6 Qg7 Qhg5 Qd2 Kg1 Kd7 Kh2 Bh3 Kh1 Bg2+
1r1QnBB1/1b1kPq2/1q2p2n/NbrqPq1N/n3R1PQ/1q2RQ2/2N5/4K3 b - - 0 1 illegal: No possible last move, all moves rejected
Rb3b2/1kQP1r1R/b5n1/pB3n1b/r1NP2Q1/n1BN1b1K/1P5N/1Q4qq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 f5 g4 h5 Kg2 c5 e4 Kc7 e5 c4 d6+ Kb7 e6 h3+ Kh2 c3 d7 f3 b6 c2 g5 f2 e7 h4 e8Q f4 g6 f3 g7 Ne7 g8N Nf5 Qd2 Rh7 Ra5 Rf7 Qee1 Qg5 Qde2 Nc6 Rc5 Nce7 Re5 Ng6 Bd2 c1B Bg2 f1B Nh6 a6 Re4 f2 Qg4 Be2 Nf3 Ra7 Bc3 Bf4+ Qg3 Ra8 Re8 Bb8 Nbd2 Bd1 Ng4 f1N+ Kg1 Ra7 Ngh2 N1e3 Qg4 Nc4 Bf1 Na3 Nc4 Qc1 Nfe5 Qb1 Qf4 Bh5 Nd3 Qa1 Qg4 Qb1 Nf3 h2+ Kg2 Qc1 Kh3 Qd1 Rg1 h1B Nh2 Bf3 Rh1 Qc1 Rd8 Qe3 Be2 Qg1 Qb1 Qc1 Nd2 Bg3 Nhf1 Kc6 b7 a5 b8Q Rc7 Nc5 Ba6 Qa7 Rb7 Ra8 Bb8 Rh2 Rb4 Bb5+ Kd6 Nd3 Ra4 Rh1 Qe1 Kh2 h3 Qh4 Bhg4 Nc4+ Kd5+ Qc7 Qd1 Kg1 h2+ Kf2 Qc1 Rg1 Qg5 Rg3 h1Q Rh3 Qc1 Qg5 Qd1 Rh7 Bh5 Qg2 Ng7 Nh2 Qdg1+ Kg3 Nf5+ Kh3 Nfh4 Qf4 Nf5 Nce5 Kd6 Qgg4 Kc7 Nc4+ Kb7 Qc7+
R1q4k/1qNPK2b/1n1P1r2/2n1bP2/6Rp/BB1r1rQr/rQ1N2B1/4n2R b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 h3 Ke3 Kf7 Kf4 Kg7 Ke5 c5 d4 h5 f4 a5 g4 c4 b4 a4 b6 e3 b5 a3 d6 a2 d7 c3 Ke6 h2 d5 c2 b7 e2 g5 e1R+ Ne2 Nf6 g6 Ra3 Bd2 Na6 b8Q c1R Bb4 Rcc3 Rg1 h1Q Bh3 Rf1 Qc2 h4 Bc5 Rh6 Rg4 Kh8 Nd2 Bg7 Nd4 Bb7 b6 Qc8 d6 Be4 b7 Nd5 Qc7 Nb6 Re1 a1R b8R R1a2 Ra8 Rf2 Kf7 e5 Qb2 Rab3 Bf1 Rh3 Ke7 Bc2 Ba3 e4 Ra1 e3 Ne6 e2 Qcc3 Be5 Qg3 Qb7 Bg2 Rff3 Rh1 e1N Nc7 Nc5 g7+ Kg8 Qa1 Bh7 f5 Rbd3 Qb2 Rf6 Rg1 Bg6 Rh1 Kh7 g8B+ Kh8 Bc4 Bh7 Bb3
2n1K2Q/2rpRR2/5Q1N/2rB2NB/P1P1bn1n/2b1Pn1N/q2n2r1/q1B3k1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 b5 a4 g5 h4 g4 h6 b3 e3 b4 c3 b2 e6 g3 h5 b3 h7 g2 h6 d3 e7 d2 e8B Nc6 Bb5 Bg7 Qe1 d1Q Rh2 Ne5 Na3 b1R Bb2 Ra7 Be2 Nd3 Nb5 Ne7+ Kg5 Ke4 Rh4+ Nf4 Bc1 f5 Bd2 b2 Bf7 Qg8 Rh5 Bb7 Bg4 Nc8 Nc7 Rc1 Ne6 b1N Nh3 g1N Qf1 Rc2 Bc1 Rg2 Qf2 Nd2 c4 Bc3+ Ng7 Qf8 Ne6 Qa3 Qh4 Rf8 h8Q Qa2 h7 Ndf3+ Kh6 Bd5 Q4f6 Nh4 Kg7 Rc7 Neg5+ Kd3 Be6 Be4 Bd5 Ngf3 Nf2+ Ke2 Rh6 Kf1 Bh5 Rg8+ Kf7 Kg1 Rg6 Re8 Rg7 Re5 Kf8 Qf1 Re7 Qd1 Ke8 Qd4 Ba8 Rec5 Bd5 Qd1 Bd2 Qdb1 Bc1 Qbb2 Rb1 Qba1 Rb6 Nfg6 Rbe6 f4 Rf7 Bf5 Qhg7 Bb4 h8N Be4 Ng4 Ne1 Rf8 f3 Nhf7 Bc3 Nfh6 Nf4 Rf7 f2 Bd2 f1N Ree7 Bf3 Nf2 Be4 Bc1 Nef3 Qh8 N1d2 Nfh3+
3rq2Q/PkR3B1/1nnbR3/1rQ2N2/p1n2Q1K/P1rBb3/3P1N2/nn2R1q1 b - - 0 1 legal: proof: f4 e5 c4 exf4 h4 g5 b4 gxh4 b5 d5 cxd5 a5 Rh2 b6 Rh1 Ba6 bxa6 Qc8 Qa4+ Qd7 Qd1 Qd8 Kf2 Kd7 e4 Kc8 g4 f5 g5 c5 g6 h5 g7 c4 d6 b5 a3 a4 a7 c3 e5 c2 e6 h3 d7+ Kb7 e7 h2 e8R b4 Nc3 b3 Re7 h4 Bb5 b2 Re8 b1N Bd3 h3 Be4+ Nc6 Kf3 Nf6 g8Q Bd6 Nb5 Rh5 Nc7 Nd5 Qg3 Nb6 Rg8 Qe8 Rg4 Rd8 Kf2 f3 Ne6 f4 Bg6 Rb5 Bb2 c1B Bd4 Bb2 Bg7 Bbe5 Qb3 Bd4+ Qe3 B4c5 Bd3 Bd4 Kf1 f2 Rg6 B4c5 Ke2 f1N Kf2 f3 Qf4 Bd4 Ra2 B4c5 Qed4 Ne3 Kg3 f2 Kh4 f1N Rc2 Nec4 Qc3 Nfe3 Nd4 Qh8+ Rh6 Qe8 Nf5 Bd4 Rc1 Nc2 Re6 Na1 Qb4 Be3 Qc5 Rc8 d8Q Rc7 Qf6 Rd7 Ne2 Rd8 Rhe1 h1R Neg3 h2 Ne4 Rg1 Rc3 Rg3 Nf2 Rf3 Qf8 Rg3 Qh8 h1Q+ Nh3 Qg2 Nf2 Qg1 Qh7 N4a5 Bc2 Ne7 Qh8 Bd4 Qb4 Rf3 Rc8 Nac4 Be4+ Nc6 Qc5 Rc3 Bd3 Be3 Rc7+
Q1q1q3/1bnRr2B/1R1R4/br1N3k/nrPP4/2NP1K2/1B1pQ3/1rB1q1b1 b - - 0 1 illegal: No proof kernel
4Q2n/qrN5/B1K1b3/brRN1r2/1PP5/Qb5p/P2k1qrQ/2RqBn1N b - - 0 1 illegal: No possible last move
1qk3q1/1RB1Qr1n/2B2B1R/5QP1/3K4/PbNbR1N1/2brpP2/b2nn2r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 c5 d4 h5 g4 e5 f6 b5 f7 b3 a3 h3 g5 c4 d6 c3 d5 c2 Nc3 b2 Qe1 b1Q Na4 b4 Bg2 h4 Ke4 b3 Bf4 c1N+ Ke3 e4 Nb2 h2 Qd1 h3 Kd4 e3 Na4 b2 Bg3 e2 Kc5 Ba6 Bf4 Bd3 Be4 Bg7 f8Q Nf6 Bg3 Kc8 Qf7 Nbd7+ Kd4 Nc5 Qe7 Na2 Nf3 Qg8 Qc2 Ra7 Nd2 Nc3 Nf1 Nd1 Nc3 Nh7+ Be5 Rd7 Ng3 Rd8 Bf6 Rf8 Qc1 Rf7 Qf4 Bc2 Bg2 Nd3 Qfe5 Ne1 d7+ Kb7 d8B+ Kc8 d6 Bd3 Rf1 h1B Bc6 h2 Bc7 Bd5 Qf5+ Be6 Rg1 h1R Rg2 Bc2 Rh2 Bd3 Rh6 Bc2 Qd3 Beb3 Qf3 Qa2 Qd5 b1B Qc5 Qb2 Qf5+ Be6 Ra2 Qb8 Rb2 Bd3 Bb5 Bbc2 d7+ Kb7 d8R Beb3 Rd7 Kc8 Bc6 Nf8 Rg6 R8h3 Rh6 Nh7 Nf1 Rf3 Ng3 Re3 Rd5+ Re6 Re5 Bh8 Qf3 Rd6+ Qd5 Rd7 Re3 Qd8 Kc5 Ba4 Qf5 Ba6 Nb1 Qg8 Rb7 Bab3 Bfe5 Bg7 Bed6 Ba1 Be5 Bb5 Bf6 B5c4 Nc3 Bb5 Qfe5 Rd2 Qd5 Bbd3 Kd4 Rh2 Qde5 Rh1 Qf5+
1b1bn2Q/1Q5b/4RnR1/Rn1nP1BP/2p5/NNqqk1P1/2r5/2q1rBKN b - - 0 1 illegal: No proof kernel
N2B2QN/K2bq1rq/1R1B3b/Qq1p1P1P/7q/R4P1n/2Brrn2/3bRk2 b - - 0 1 illegal: No possible last move
N1K2RBr/b1BQb2b/NRNrB2n/2Pq1n1q/7b/2Qpq3/krP1P3/8 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 d5 Ke3 Kd7 Kf4 Kc6 a4 b5 h4 f5 e6 g5+ Ke5 b3 e7 b2 e8N d4 a5 d3 a6 b4 a7 Kb5 h5 b3 h6 Kb4 h7 g3 Nf6 g4 Rh5 f4 Rh4 g2 Nd7 g3 Ke6 Nc6 Nc3 b1Q Qe1 b2 Ra2 Nh6 Rh1 f3 Ra6 f2 Bg5 Qc1 Rh3 b1R Rb6+ Ka3 Nf3 g1B Nb5+ Ka2 Nfd4 g2 Qc3 Bh2 Bf4 g1B Bc7 Ne7 Rf3 Rb2 Bh3 f1Q Nc6 Bf2 Qg7 Rb8 a8B Bh4 Qf7 Nef5 Rf2 Rg8 h8Q Qh1 Qc3 Bfe7 Rf4 Rh8 Qh7 Ne3 Rf8 Nef5 Bb7 Ra8 Ba6 Bb7 Ndb8 Be5 Qf7 Qe3 Qe8 Qhf3 Qd7 Qh5 Bg4 Bc8 Bb7 Ra4 Na6 Rd4 Ba8 Ng3 Bf5 Bb7 Bh7 Ngf5 Bg8 Bh2+ Ne5 Be4 Nc6 Be5 Bb7 B5d6 Bc8 Bf4 Be5 Bh2 Nbc7 Rd5 Na8 Rd4 Bg7 Bb8 Be5 Ba7 Bc7 Qde8 Qd6 Qef7+ Kd7 Rd5 Bb7 Rd4 Kc8 Rd5 Qd7 Rd6 Ne5 Qc4 Bbd5 Qb3 Bde6 Qd5 Qb5 Nd4 Qc6 Bh7 Qd7 Ndf5 Nc6
2b1Q3/1Q2BRRn/b2r1Npq/P1b1R1Pq/5k2/1nNb3q/1P3r2/Bn2K1N1 b - - 0 1 illegal: Other
7B/k2n4/2Q1P1B1/1qn3Pp/1nq1rQ1b/PNqRB2K/3Nb1Q1/2rR2bb b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 d4 b5 e4 c5 g4 Kc7 Kg2 Kb7 e5 h5 a3 f5 e6 f3+ Kh3 c4 d6 c3 d5 c2 g6 f4 g7 b3 d7 b4 d6 f2 Be2 f1B+ Kh2 f3 Be3 c1B Qc2 b2 Bc4 b3 Ne2 f2 Ng3 Ra4 Nd2 b1N Nge4 b2 Nb3 Be7 Qd2 Nc3 Nec5+ Ka7 Ra2 b1Q Qb2 Be2 Bd3 f1Q Qc2 Ne4 Nd2 Na6 Ncb3+ Nec5 Bg6 Qc7 d8Q Nf6 g8Q Re4 Qdf8 Nd7 Qf4 Bh4 g5 Bb7 Qe8 Qe1 Kh3 Nb4 Rf1 Bc6 Ra1 Bb2 Rf3 Bd4 Qb2 Qd3 Rd1 Qb5 Qa2 Bb7 Qc8 Qcc6 Qc7 Qd5 Qc6 Qdc4 Qc2 Rc8 Qa2 Nf6 d7 Ba8 d8B Nfd7 Bf6 Bb7 Nf1 Qec3 Bh8 Ba8 Nfd2 Bb7 Bg1 Bdf2 Rd3 Be3 Bh2 Bg1 Bg3 Ba8 Bf2 Rf8 Nf3 Qa4 Qb5 Re3 Rf1 Bd1 Qe5 Re1 Qh2 Rf4 Be3 Bc6 Qaf2 Be2 Nfd2 Rc1 Rd1 Bh1 Qfg2 Re4 Qc6 Qab5 Qf4
r2b1k2/Q1BN1r2/2RqPp1K/qP2nq2/5r1b/n1Q3Rb/1qPNBN2/Q7 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 g5 Kf3 a5 Kg4 d5+ Kf3 a4 e4 a3 h4 d3 b4 f6 e5 d2 h6 g4+ Kg2 g3 Kf3 a2 h5 d4 h7 d3 b6 g2 b7 Ne7 b5 Ng6 h6 Be7 Nh3 g1B Nf2 Qa5 Qe1 d1Q+ Be2 d2 Bb2 Nc6 b8N Rf8 h8Q Bh3 h7 Bd8 e6 Nge5+ Ke4 f3 Qg7 Nc4 h8Q N6e5 Qa7 Na3 Nd7 Ke7 Rh2 Rf7 Rg2 Qc1 Kf4 d1Q+ Nd2 Qb1 Bc3 Qb2 Rg3 Bh2 Qh1 Qf1 Rd1 a1Q Bd4 Qaa2 Bb6 Qd5 Bc7 Qd6 Qh7 Ke8 Qd3 Ke7 Qc3 Ke8 Ng4 f2 Kf5 Ke7 Rg2 Bf4 Rg3 Bg5 Qg1 Bh4 Qh1 Nc6 Kg6 Ne5+ Kh6 Ke8 Bf3 Qfd3 Be2 f1R Nf2 Qf5 Ra1 Nb1 Ra4 Na3 Rc4 Ke7 Rc6 Ke8 Nd3 Rf4 Nf2 Ke7 Qa1 Ke8 Nb8 Kf8 Nd7+
3n1RQR/1B2rBK1/rNnP1n2/5R1b/Q5NB/P1qr4/4qPpn/2k1q1b1 b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 Ke5 b5 h4 g3 d4 c4 a3 b4 a6 b3 d6 e3 d7 c3 a7 c2 d5 b2 Qe1 g2 Ke6 e2 Nd2 b1R Ngf3 g1N Ng5 Nc6 Rh2 Qc7 Bg2 Rh7 Nf1 Nf6 Qc3 e1Q+ Ne4 Nf3 Bh1 Qe2 Qd3 Rb3 Bf4 c1N Nd2 Na2 Nc4 Nab4 Qd1 Rd3 Rh3 Nh2 Bd6 Nd8+ Ke5 Kh5 Nb6 Kg4 h5 g5 h6 e6 Rb1 Re7 h7 Qc4 Bc5 Qc3+ Bd4 Bb7 h8R Nbc6+ Kd6 Kf4 Qa4 e5 Rb5 g4 Bg2 Bh6 Rf8 g3 Bh1 Bg5 Rhh8 Bc8 Bf3 g2 Bh5 Bh6 Bg6 Kf3 Bf7 Bf4 Be3 Bg3 Bg5 Ba6 Ra5 Bc4 Bh4 Bb3 Kc7 Bd1 d6 Bf4 Ng3 e4 Nf5 e3 Nh6 Qeb2 Rg5 Ke2 Ng4 Kd2 Rb5 e2 Rf5 Rb8 a8B e1Q Bb7 Kc1 Rh7 Ra8 Rhh8 Ra6 Kc8 Ne6 d8Q Qbe2 Qd7 Ned8 Qe6 Nf3 Qeb3 Bh2 Qe6 Nh5 Qg6 Bg1 Qg8 Ree3 Kd7 Nh2 Be6 Re5 Ke8 Ree3 R8f7 Nf6+ Kf8 Re4 Kg7 Re5 Ba2 Re8 Rf8 Re7+ Bf7 Qa2 Ne5 Bh5 Ng4 Qad2 Ba8 Qde2 Bb7
2QN2Rr/Qn2R1NQ/B2P1K2/Bkb2p1r/q2Prnb1/1q3P1r/4q3/4Bn2 b - - 0 1 illegal: No possible last move
n1b1q3/5n2/1BBP1qqr/kqp3N1/4P3/3N1NQ1/rB1brP2/1R1RnQK1 b - - 0 1 illegal: No proof kernel
1k4Bq/R3Q1RQ/1q1P1np1/1N1qP2R/1r3N1K/1b2b1B1/b2n2Pn/4nrQ1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 Kd8 b4 a5 d4 f5 e4 h5 e5 c5 d6 f3 d7 Kc7 d8R a4 d5 h4 Qe1 f4 Ra3 c4 Nh3 c3 Ng1 h3 Ra1 g6 Qe4 a3 Re8 a2 Nd2 c2 Bd3 Nh6 Bf1 Bc5+ Qe3 Be6 Re7+ Nd7 d6+ Kb8 b6 Ra4 b7 Bb3 b5 Rf8 Bb2 c1Q Bc4 Rb4 Be6 Nf6 Bd4 Qc4 Nb1 Qd5 Bg8 Ba7 Ne2 Nhg4+ Kf1 f2 Na3 Qg3 Rg7 h2 Bc3 Qh4 Be1 Qh8 Qh3 Bd4 Qh7 Bb6 Nc1 Bc5 Nd3 Be3 Ke2 f1N Bg3 f3+ Ke1 Ka7 Nf4 f2+ Ke2 Nd2 b6+ Ka6 b8Q f1B+ Ke1 Bfc4 b7 Kb6 Qe8 Ka7 Qe7 Kb8 Nb5 Rf7 Rb1 a1N Rb2 Rf8 Ra2 Rf7 Ra6 Ba2 Ra4 Bcb3 Ra7 Nc2+ Ke2 Nde4 Kf3 Rf8 Be1 Nd2+ Kg3 Rf7 Kh4 Rf8 Bg3 Ne1 Rf1 h1Q+ Nh3 Qg1 Rf5 Rd8 Nf4 Rf8 Rh5 Nh2 Ra4 Bd1 Be6 Bd4 Nc7 Rb1 Bf7 Nc2 Nb5 Rc8 Bg8 Rc4 Nc7 Rc1 Na6+ Ka7 Qc7 Bb6 Qc5 Rb4 Qd4 Qf2 Qa1 Qfc5 Nc7+ Qa5 Qd4 Bc5 Qg1 Be3 Na6 Qb6 Ra5 Be2 Nc7+ Ba6 Ra3 Rf1 Ra5 Ne1 Ra3 Qba5 Ra4 B6c4 Nb5+ Kb6 Ra3 Bcb3 b8Q+ Kc6 Qf8 Qb6 Bf7 Kb7 Qe7+ Kc8 Ra7 Kb8 Bg8
b1k1qB2/1r1N2n1/Q1np3q/PPQr3r/2P2R2/N1b1RbQ1/K1B4R/1n1b4 b - - 0 1 illegal: No proof kernel
2bn3r/nR3r1r/K1PnBN1N/1Q1PpR2/1Bb1Rnq1/2Q1B1q1/4P1q1/3k4 b - - 0 1 illegal: No proof kernel
1b1qB3/Qrq1qnR1/1np4B/2P4b/1q4NP/1P4bN/rBK1N3/k2rR1Q1 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 f5 g4 hxg4 d4 e5 dxe5 fxe4 Kd2 Kf7 h4 Ke6 f4 Kd5 c4+ Kd4 c5 g5 b6 a5 e6 d5 e7 a4 e8Q g3 b7 c6 f5 g2 f6 a3 b3 g4 f7 g3 Qg4 a2 Qh3 e3+ Kc2 e2 Ba3 e1Q Bb4 Rh7 Ba3 Qb4 Be2 Nd7 b8N Nh6 Bc4 Bd6 f8B Nf7 Qe1 Nb6 Na6 Bb8 Qe2 Bg4 Qe8 Bh5 Nc3 Ra7 Rb1 a1Q Rf1 Qe1 Qhd7 Qee7 Nh3 g1B Nc7 g2 Bh6 Bh2 Rfg1 Bg3 Bac1 Ra5 Re1 g1Q Qg8 Qh2+ Be2 Ra4 Rhg1 Ra3 Ne8 Ra2+ Kd1 Rg7 Nf6 Rh7 Bg4 Kd3 Qa7 d4 Ne2 Rg7 Nef4+ Kc3 Be2 d3 Ng4 d2 Bc4 Ng5 Bf7 Rh7 Be8 Nf7 Nd3 Qf2 Rg2 Qff4 Qg5 Qfc7 Qe3 Be5 Qg1 Rg7 Ndf4 Rh7 Ke2 d1R+ Ke3 Rg7 Ne2+ Kc2 Rg3 Kb1 Rg2 Ka1 Rg3 Rd7 Rg2 Bd6+ Kd3 Bg3+ Nd4 Qf6 Ne5 Nh8 Bhe3 Qcc8 Qa8 Bf2 Qa7 Rd6 Rg4 Rb7 Rg7 Nf7 Ng4 Qfe7 Bed2 Bg3 Bh6 Qb5+ Kc3 Qcc7 Ne2 Rd5 Rh7 Rd1 Rg7 Ra4 Kc2 Qb4 Bhf4 Ra6 Bh6 Ra2+ Bb2#
1n2nRBK/1qB2qN1/1PbPr3/3n2k1/3Q1p1b/2R1RP1n/rNQ5/r3b1N1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 gxh4 Ke2 a5 Ke3 f5 Kf4 Kf7 Kg5 e5+ Kh5 Kf6 d4 h3 g4 h2 c4 f4 d5 e3 b6 a4 c6 e4 c5 e2 c7 e1N c6 e3 Nc3 e2 Ra3 Nd3 Bb2 Bd7 c8R e1B c7 Nb4 Bc4 Bc6 g5+ Kf5 g6 Qe8 d6 Qf7 Qd4 Be7 Rf8 Bh4 Nd1 Nd5 Rc3 Ngf6+ Kh6 a3 g7 a2 g8N Ne8 Nf6 a1R Nh5 R8a2 Ng7+ Kg4 Nf5 Rg8 c8Q Rg5 Ng7+ Rf5 Qa6 Re5 Qa4 Re2 Qc2 Re4 Ne2 Re5 Rf1 h1Q Ng1 Re2 Re3 Qe4 Bc3 Qee7 Nb2 Qb7 Rf3 Re5 Re3 Re4 Qdd2 Re7 Bf6 Re6 f3+ Kg3 Rf2 Qg8 Na4 Bg5+ Kh5 Re5 Rd3 Ndc7 Bf7 Nd5 Re3 Re6 Qcd1 h6 Kg6 h5 Rc3 h4 Q2c2 h3 Re2 Kh4 Ree3 h2 Nb2 h1N Qdd2 Nf2 Qd4 Re7 Be6 Nh3 Bf7 Re5 Bd8 Bf6 Kh6 Re6 Bc7 Be7+ Bg6 Bf6 Bh7 Qf7 Bg8 Bg5+ Kh7 Bf6 Kh8 Bg5 Nf5+ Kh5 Re4 Bgh4 Ree3 Kg5 Ng7
rqb5/1Q1q1N1b/1p2R1nP/nQr1B3/4r1NR/K7/1P1BPb1Q/1q1q1kB1 b - - 0 1 illegal: No proof kernel
1Q5r/b4qrP/1RQ1r3/q1nbB2P/1r3PB1/p5N1/n1KQ2NR/b4Bkq b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Kd2 Kf7 f4 Kf6 b4 Kf5 c4 g5 h4 e5 b6 a5 b7 d5 b5 g4 b6 e3+ Kd3 g3 h6 e4+ Kc2 a4 h7 g2 c5 a3 h5 e2 c6 Kg4 c7 Kg3 Qd3+ Kf2 Qb3 e1R Qa4 d3+ Kb3 d4 Ra2+ d2 Be2 d1R Nc3 e3 Qa7 d3 Ra1 d2 Rh3 Qf6 Bd3 e2 Be4 Ne7 Bd3 Nd7 b8Q Bg7 b7+ Nc5+ Kc2 Nc6 Qa5 Qf7 Nd5 Ra7 Qb6 Be6 Bb2 Rb1 Ne3 Bd5 Be5 Rb4 c8B Bf6 Qd6 d1Q+ Kc3 Qa4 b8Q Qa5 Rb1 Bg7 Kc2 Rd7 Nf3 g1B Nf1 Kg2 Bc4 Bd4 Nh4+ Kg1 Ng2 Ba1 Bb2 Bd4 Rh2 Re7 Qa6 Re6 Qd8 Rg6 Bg4 Rg7 Qaa8 Rb3 Qe7 Kf2 Be6 Na6 Bc8 Ba7 Bd3 Nc5 Bg4 Rb7 Ng3 Nb4+ Kd2 Na2+ Kc2 Rb6 Qe4 Re6 Qc6 Rh1 Bc4 e1Q Be5 Rf1 Qd3 Qe4 Rb6 Rb1 Ne1+ Kg1 Ba6 Qh1 Qd2 Rb3 Ng2 Rb4 Bf1
b3Q1B1/n4RP1/4KN1r/3rRN2/nr1P2Q1/1pN1n3/nBk1P2q/q1b1b1Q1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 a4 h5 d4 b5 g6 c5 g7 b3 g5 h4 d6 f3 d7 b2 g6 h3 a5 f4 a6 b4 a7 h2 Ra3 f2 Bh3 f1N Qe1 b3 Be3 f3 Qd1 f2 Ra1 Qc7+ Kf5 Ne7+ Ke6 Nbc6 g8N Rh5 g7 Bb7 d8Q Rb8 a8Q Nb4 Nf6 Na2 Qe8 Rd5 Bd2 Ne3 Qc6 f1Q Nh5 Nc8 Bf5 Na7 Nc3 b1N Nf3 Kb4 Ng3 c4 Ng5 Ka3 Rg1 Kb2 Qd7 h1R Bh7 Bb4 Nf5 Qh2 Nge4 Bc6 Qe1 Kc2 Bc1 Rb6 Qac8 Ba8+ Qcc6 Ba5 Bb2 Rb4 Rg5 Qfg1 Bg8 Qf1 Nd1 Nbc3 Nf6 Na4 Qe8 c3 Qcd7 Bc7 Qf2 Bg3 Qg1 Be1 Rb1 Kd2 Qdc8 c2 Nc3 c1B Ra1 Kc2 Rh5 Bcd2 Rd1 Bc1 Rd3 Ng4 Rf3 Ne3 Nh6 Qhf2 Re5 Qg3 Nf5 Rh6 Qh5 Qgh3 Qce8 Qh2 Qhg4 Bf2 Nd6 Bd2 Rff5 Qa1 Rf4 Rh8 Nfe4 Bfe1 Rf7 Bc1 Nf5 Rh6+ Nf6
1BK5/qnR3P1/1Bn1R1B1/PNpNQ3/b2b1N1b/3r1q2/1q1n2P1/r2Qq1k1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 Kd6 Kd4 c5+ Kc4 Ke5 Kb5 Kf4 d4+ e3 a4 e5 f3 Kg3 g6 Kf2 f4 h5 d6 e2 f5 e1B d7 e4 f6 h4 f7 h3 d5 b3 d6 e3 Nc3 e2 Bf4 h2 Na2 b2 Nc3 b1Q+ Qb3 Ne7 Be5 Qb2 Nf3 Nec6 Nd4 Qe7 Kb6 Nd8 Kc7 b5 Qe6 b4 Ndb5 b3 Nd5 Bg7 f8N Nbc6 a5 Nb7 Bf4 Bd4 Qe5 Rb8 g7 Rh3 Ng6 Rd3 Rb1 Qf7 Rg1 h1Q Bh2 Qf3 d8Q Bd7 Bf4 Be8 d7 Qh2 Rh1 Qhg3 Rh6 Kg1 Rd1 Qh4 Bg3 Qhf6 Ngf4 Qe7 Re6 Bef2 Rd2 e1Q Be2 Qf7 Bd1 Qe7 Bc2 Qf7 Qh4 Qe7 Qg4 Rd8 Re2 Rd1 Bg6 Ra1 Bh4 Qf7 Be7 Bh4 Bd6 Qa2 Re3 b2 Re7 b1N Qgh5 Qff1 Qd1 Nd2 Re4 Qb2 Re2 Ra8 d8B Qf3 Re4 Ra6 Kc8 Rb6 Rc7 Qe7 Na3 Rb3 Nb5 Re3 Rd7 Rd3 Bb6 Ncd8 Rc7 Bc6 Nbc3 Ba4 Nb5 Qf7 Re7 Nc6 Bb8 Nbd8 Re6 Qa7 Re7 Nb7 Rc7 Qe2 Qf6 Qe3 Re6 Qf3 Qe5
3R1b1q/1r1nq1p1/r1b2RB1/2B1q2B/b4PNK/1P2rrQ1/1Q2P2N/3k1Qn1 b - - 0 1 illegal: No proof kernel
3qb1K1/Br4p1/2b1n1P1/1b1Q1B2/P3nn2/2R1QNrQ/2nPq1Rq/R2k2N1 b - - 0 1 illegal: No proof kernel
1Q2b3/2Q1qp2/2nNnbr1/Q1PKBRrN/Pq1B2b1/B4k1b/5P2/4Rnq1 b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 dxc5 e6 b4 axb4 Bg2 Bd6 Bc6 Bf8 Bd5 exd5 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 c4 Kg4 h4 g5 h6 b5 a3 b3 h7 b4 h5 b2 h6 b3 c6 Ra6 c5 Ne7 c7 Bg7+ Ke3 d4+ Ke4 d5+ Kd3 Nf5 Qf1 Nc6 e4 Qe7 e5 Bf6 e6 Ng7 Ra2 Rg8 Nh3 Kf3 h8B g4 h7 g3 Ra1 g2 Qe1 g1Q Nc3 b1N Nf4 b2 Rh5 Nd2 Ne4 Nf1 Rf5 Bd7 c8Q Be8 a4 Rb6 Qd2 b1Q+ Qc2 Qb3+ Qc3 Qb4 Ba3 Ra6 Qc7 Rb6 Re1 Ra6 Kc2+ d3+ Kd1 d4 Nh5+ Kg2 Kc1 d2+ Kc2 d1B+ Kd3 Bg4 Nd6 Bh3 Ke4 d3+ Kd5 d2 Re4 d1B Re1 Qf8 e7 Ne6 Bg7 Bdg4 h8B Bd4 Be5 Rg5 Bh2 Bf6 Be5 Qb8 Q3a5 Qb4 Nf4+ Kf3 Bg7 Bd7 e8Q Qe7 Qeb8 Be8 Nh5+ Kg2 Bab2 Na7 Re2 Nd4 Bh2 Be5 Nc8 Rag6 Ba3 Nac6 Re1 Ne6 Nd6 Bd4 Bf4 Kf3 Bh8 Be3 Ba1 Bd4 B1b2 Bh8 Bd4 Bf6 Bfe5+
q1r1RQkb/4Pr2/5P2/3bB3/1q1bnq2/2PK1R2/1Q1p1Qb1/rN1NBn1B b - - 0 1 illegal: No possible last move, all moves rejected
3Qn3/1qNqPP1r/1nBN1k1n/2R1Bb2/2q4b/r1R3qQ/PR3p2/2KB1r2 b - - 0 1 illegal: No proof kernel
b1R2k1r/nn2Pp2/4PPq1/Q5RB/2BNB2r/5qQ1/1r3R2/KNbnb1r1 b - - 0 1 illegal: No possible last move
2nq1Q2/4PprB/2P2rR1/2bNR1NP/4b1rB/3k1N2/K4Qb1/bQ1nq1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 h4 g5 c5 a5 h6 d5 h5 g4 b6 a4+ Ka2 d3 b4 d2 c6 g3 b5 a3 b7 d4 b6 d3 h7 g2 Nf3 g1R Qc2 Rg4 Rg1 Nd7 b8Q d1Q b7 Qe1 Ng5+ Kd4 e4 f3 e5 f2 e6 d2 Bd3 f1B Nc3 d1N Nd5 Bc5 Bf4 Ne7 Bg3 Ne5 Bh4 Nf3 Rc1 Rg8 h8N Bg2 Ng6 Ra5 Ne5 Rg7 Bh7 Bd7 Ra1 Nc8 e7 Bf5 Qa8 Bd3 b8Q Be4 Qbb1 Rb5 Qe2 Rb3 Qf2+ Re3 Rh1 Ng1 Nef3+ Kc4 Rh3 Rc3 Rg3 Rc2+ Qb2 Kd3 Rc1 Rc4 Rc2 Rf4 Re2 Rf6 Qab8 Bg6 Re5 Be4 Ne6 Rb4 Rg6 Ra4 Neg5 Rd4 Kb3 a2 Qa8 a1B Ka2 Bf5 Qbb7 Rg4 Qab8 Be4 Qb6 Qe8 Qd8 Qd7 Qf8 Qd8 Qb1+
5NR1/4p3/1R2bQP1/RqNPb1n1/2n1Brq1/B6B/br1kPq2/K2Qrq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 c4 Bb7 Qa4 Ba6 fxg5 Bc8 g6 Nf6 g5 Ng8 Qb3 dxc4 Qg3 Qd3 Qh3 Qd8 Qg4 hxg4 Kd1 Kd7 Kc2 Ke6 b4 Kd5 Kb2 Kd4 h4 c5 d3 f5 b6 a5 b7 a4 b5 c3+ Ka2 f4 g7 c2 b6 a3 h5 f3 h6 f2 h7 c4 g6 c3 Rh2 g3 Bd2 c1Q Bh3 f1B Bg4 c2 Rh6 g2 Bg5 Nc6 b8Q Qe1 b7 c1Q Rh5 Na5 Rh4 Nf6 g8B Bg7 Bd5 Qe8 Nd2 Kc3 d4 Rf8 h8Q Qf2 Nb3 Qb5 Nh3 g1Q Nc5 Be6 Qd6 Nh7 b8R Rf4 Rg8 Be5 Qf6 Nc4 Be4 Rb8 Rh5 Qgg3 Rb1 Kd2 Ka1 a2 Bh6 Bg2 Ng5 Rb7 Bh3 Qcf1 Bg7 Qg4 Qd5 Bf7 Nge6 Ng5 Nf8 Be6 Qd7 Qa6 Qa4 Rb2 Qb3 Qb5 Qd1+ Ke3 Bf5 Bgd5 Be4 Rc2 Rb4 Rb2 Bh6 Qa5 Rb8 Qb5 Rb6 Nf3 Rg5 Rb4 Qc1+ Ncd2 Rb7 Qd7 Qh8 Bd6 Bg7 Ra4 Kb2 a1R Rb6 Ba2 Nb3 Rb4 Ra5 Ng5 d5 Qb5 Qc2 Re1 Qd1 Nc4+ Ka1 Bb8 Bb2 Be5 Nc5 Rb3 Qf6 Rb4 Bc3 Rb2 Bb4 Q1g2 Qb1 Qgf1 Ba3 Kd2 Qd1+
br3bRr/1nnP3Q/4B3/1Qb1q2P/1pq2k2/RBN2P1n/3KNBqq/4Q3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 d4 Kd7 a4 Kd6 h4 g5 f6 b5 h5 c5 f3 e5 f7 b3 a5 b2 a6 c4 a7 g3 Nd2 b1Q Ke2 c3 Ra3 e4 Ra6+ Nc6 Rh2 b4 Qe1 c2 Bh3 g2 Qf1 e3 Bf5 g4 Bb2 c1Q Qe1 g3 Ra3 Nf6 Be6 Rb8 a8B Qa2 Nb1 Qc7 Nc3 Ne8 Rh4 Bd7 Rg4 Nd8 Rg8 Nb7 Kd3 Bc6 Nge2 g1B Ba1 Be7 f8Q g2 Qg7 Bf8 Qh7 Bf2 Bb2 g1N Ba1 Qg7 Bb2 Nc7 Ba1 Ke7 d6+ Kf6 d7 Kg5 d5 Nh3 d6 Qcb2 Nd4 e2 d8Q+ Kf4 Qe8 Bd5 Qb5 Qg2 d7 Qbb3 Bb2 Qc4+ Kd2 Qh2 Nc6 B2c5 Nd4 Na5 Bb7 Qg2 Ba6 Ba8 Bb7 Qh2 Be4 Nb7 Bc2 Qb1 Bb3 Qg6 Nf5 Qgg2 Ng3 Ng5 Na4 Nh3 Bd4 Bh6 Nc3 Bg7 Qf1 Bgf8 Bf2 e1Q+ Kc2 Qe3 Qe1 Qee4+ Kd2 Qe5 Nge2+
1Rb2n2/3P1nN1/1K2Qqq1/2r1QP2/BkpQ2Rb/Pq2B3/r2b1NN1/2b2n2 b - - 0 1 illegal: No possible last move, all moves rejected
1bnQ3q/3P2R1/Br3B2/pb1RP1KP/kNq1r1n1/6n1/1nRN3b/r4Q1N b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 e5 f3 Ke3 g3 d6 f2 d5 c4 b6 f4+ Kf3 g4+ Ke4 g2 Kf5 g3 b7 f3 b5 c3 b6 c2 Nc3 Nf6 Bd2 c1N Kg5 Nd3 Qc1 Ra6 Nh3 g1B Kg6 g2 Ne4 Nb2 Ra2 Ng4 Bg5 Bh2 Bf6 g1R Nd2 Nc6 b8R Na7 b7 Rb6 Ba6 f1N Kg5 Ng3 Qf1 f2 Ra8 Rh6 b8Q Rb4 h5 Re4 Qb6 Bb7 Qd4 Nc8 Ra7 Be7 Qb6 Qh8 Qd4 Kd8 d7 Kc7 d8N Bd6 Nc6 Kd7 Nb4 Bb8 Qdd3 Kc7 d6+ Kb6 Qd5 Bc6 Rg7 Bb5 Qg8 Kc5 d7 Kb6 Qd8+ Kc5 Qe2 Ra1 Rd1 f1Q Qe1 Qc4 Nf2 Re2 Nh1 Re4 Be7+ Rd6 Bf6 Rb6 Qe2 Kd4 Qf1 Kc3 Nb1+ Kb3 Rd5 Nd1 Rg2 Ka4 Rc2 Nb2 Nd2
B1Rn3n/2rPk2Q/3rb1Pb/QKQnPNq1/R3r3/2N3q1/b1B4p/2b1B3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 h5 d4 a5 Kd2 c5 Kc3 f5 e4 f3 b4 a4 b6 f2 d5 h4 b5 h3 g6 f4 d6 f3 b7 h2 b6 a3 g7 a2 e5 Nc6 b8Q Nh6 g8B Nf7 g5 Rh4 g6 Re4 b7 Nh8 Be6 Ra6 Qc7 Bh6 b8Q Qg5 Qbb7 Nd8 Bd5 Be6 Bd3 f1N Qa5 f2 Bc2 Ne3 Qd4 f1B Qh7 Qg3 Ba8 Nd5+ Kb2 c3+ Kb3 c4+ Ka4 Kf8 d7 Rd6 Qdc5 Bfh3 Nf3 Bhg4 Bd3 c2 Bd2 c1R Nh4 c3+ Kb5 c2 Nc3 Bg8 Rd1 B4e6 Nf5 Qg5 Ng7 Ke7 Be1 Bgf7 Rb1 a1Q Rb4 Qa3 Rd4 Rg4 Bf5 Re4 Ra4 Bg8 Ne2 Qag3 Nc3 Ra1 Rdd4 c1B Rdc4 Ra2 Qcb6 Rae2 Rc8 Rc4 Bc2 Rc7 Qf2 Re4 Qc5 Nb4 Bd3 Ba2 Bb1 Bge6 Bc2 Nd5 Nf5+
1kn1QqnK/r2P2P1/np2N2P/3rN3/3q2r1/2B3Rr/bbBQ4/b2B1RQ1 b - - 0 1 illegal: No proof kernel
Q1bQ4/nrP5/b2b1rPP/Rq5Q/q1r1n1N1/2R3kq/R1pBK3/1B1N2q1 b - - 0 1 illegal: No proof kernel
1br1kNnK/2PrB2n/QP2R2q/3q1Q2/p1Q1q3/1N2P3/b2rBnq1/RB6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 Kf3 d5 g4 h5 c4 a5 b4 d3 c5 a4 e3 d2 c6 d4 g6 d3 c7 h4 b6 h3 g5 h2 b7 Qd6 g7 Ra6 g6 Nd7 b8Q Ndf6 b5 Nh7 Qb7 Be6 Nh3 Ba2 Qc2 d1R Ng5 d2 Ne6 Qd5+ Qe4 Rd6 Be2 Rd7 Ba3 Be7 Qa6 Bc5 Bb4 Ba7 b6 Bb8 Be7 Qd4 Rg1 h1N Nf8 Nf2 Rh1 Qc4 Rh6 Qd5 Na3 Qd6 Nc4 Qf6 Na5 Qe6 Kg2 f3+ Kg3 f4+ Kh4 Qd5 Qb1 Qe4 Kh5 Ng4 Qab5 f2 Nb3 f1Q Qa6 f3 Qbd3 f2 Qdb5 Qfg2 Qf5 Nhf6+ Kg5 Nd5 Kh5 f1Q Kg5 Qe1 Kh5 Qeh1+ Kg5 N8f6 g8B Qhh3 g7 Nh7+ Kg6 Ndf6 Bgc4 Ng8 Bcd3 Qhh1 Bb1 Nf2+ Bg5 Ngf6 g8Q Qhh4 Qgc4 Ng8 Bg4 Qhh2 Be7 Qhf4 Kh5 Qd6 Re6 Qdf4 Kh4 Qh6+ Qh5+ Qeg6 Re4 Ngf6 Ne6 Kf7 Be2 Rc8 Nf8+ Ke8 Re5 Ng8 Re6 Qg7 Qhd5 Q6e4+ Kh5 Qf6 Bg4 Qff4 Qf5 Qfh2+ Kg6 Qhh1 Kg7 Qh6+ Kh8 Rc1 Qa8 d1Q Qaa6 Rc2 Be2 Qdd5 Qh3 Rd2 Qf5
Q4Rqn/1BPK1BP1/3R1N2/1N1p3P/4b1r1/B2RQ2q/1qn1r2b/1qkbn3 b - - 0 1 illegal: No proof kernel
1N2bR1n/K1Pp1Nk1/2rb4/1P1qPrb1/1Qn1R1nR/1Bq5/Q2qq3/4BB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 c4 Kf7 b4 a5 e4 h5 g4 h4 g6+ Kg7 g5 d3 c5 h3 c6 a4 b6 h2 c7 f3 Ke3 d2 Kd4 a3 b7 f2 b5 a2 Qc2 d1Q+ Qd3 f4 Nh3 f3 Kc4 Rh6 Qd6 Qd2 Kc5 Nf6 Kb6 Nc6 b8Q Ng4 Qa7 Nce5 Nc3 Qf6 Rb1 a1B Ne2 Nf7 Qa2 Qfc3 Rb4 Bb7 Nd4 Bd5 Nc6 Nh8 Nb8 Bf7 e5 Be8 Ba3 Bb2 Re4 Bc1 Qb4 Bd6 Bb2 Ra6+ Kb7 Rc6 Ka7 Rh5 Ba3 Ne3 Bb2 Nc4 Ba3 Kg8 g7 Kh7 g8B+ Kg7 g6 Rf5 Bd3 f1Q Ng5 f2 Nf7 Qfe1 Bf1 Qde2 Bb2 Bg5 Bc1 Q1d1 Bd2 Qdc2 Be1 Qc2d2 Rg1 h1Q Rgg4 Qhf3 Rh4 Qfd3 Bg2 f1N Bh3 Nh2 Bf1 Kf8 g7+ Ke7 Bh7 Qd5 g8R Ng4 Bg6 Rf4 Bf5 Rf3 Be6 Rf5 Rg6 Kf8 Rf6 Q5d3 Bd5 Kg7 Be6 Na3 Bb3 Nc4 Nd8 Qd5 Rf8 Qed1 Nf7 Qdf3 Rf4 Qfe2 Re4
2Nn2Qq/1P4r1/qR1Q1RQq/5r2/4Bb2/1P1r1pN1/1BnnP1br/1k1K1N2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 d4 Kd6 g5 f5 b3 h5 g6 c5 b6 a5 b7 h3 g7 h4 Rh2 c4 Ra3 c3 Qd2 f3 Qd3 f2+ Kd1 c2+ Kd2 f4 Nf3 a4 Ra2 a3 Rg2 h2 Qb5 h1R Ng5 h3 Qa6+ Nc6 Bb2 c1Q+ Kd3 h2 Nc3 Bh3 Qb5 Qa1 Kd2 Rh7 Qa6 Nf6 g8Q Rg7 Nf3 Ne4+ Kc2 Nd2 Rg6+ Qf6 Rh6 Rd8 Bg2 f1R Qd3 Qe6 Rf6 Rdd7 Qg6 Nd8 Ng1 Rf2 Be4 Bg2 Nf3 Be7 Qf5 Rhf1 Qg6 h1Q Nh2 Bf8 Nf3 Qh6 Nh2 Rh1 Nf1 f3 Bc1 Rh2 Kd1 Rh5 Rc2 Rf5 Ra2 Kc7 d6+ Kb6 d5 Kc5 Rc2 Kb4 Ra2 Rc7 d7 Qa6 d6 Rcc5 Rc2 Rcd5 Ra2 Rd3 Rc2 Nf7 d8N a2 d7 Qb2 Nc6+ Ka3 d8Q a1N Qd7 Nd8 Na7 Bd6 Nc8 Bf4 Qd6+ Rc5 Nb1+ Ka2 Ng3 Rf5 Rc6 Nc2 Rb6 Qe5 Bb2 Qe8 Na3 Qf8 Nc4 Kb1 Ne3 Qe8 Qgd5 Qeh8 Nef1 Bh3 Bc3 Rh2 Bb2 Bg2 Qg8
b1Bk4/1Pn1q1r1/1B1Q4/KQ1r2Br/1NP5/Pp1n1q2/1b1Q1n1b/N3rR1R b - - 0 1 illegal: No proof kernel
1b1Bq1QN/1P4NR/1K2RqQ1/1n4qP/4p1rb/P1r1Q2b/1N2B3/r1k1n1q1 b - - 0 1 illegal: No proof kernel
5k2/rP1r3P/P1pbqnN1/qN4nR/1B1Qb2K/n4N2/3bbQR1/2Bq3B b - - 0 1 illegal: No proof kernel
1K2N1Rn/np6/1PbQ1P1N/2r2qnR/rq1R3n/N3kb2/2P1B2B/2Q2b1q b - - 0 1 illegal: No proof kernel
b1k5/P3rnNB/q1N3q1/pN4PQ/3b4/1RBB1q2/nnQr2P1/KR4bb b - - 0 1 illegal: No proof kernel
5bBq/P2p1qBr/n3QQr1/3R3r/1nK1N3/2PP3N/5qkq/1bbRB1Q1 b - - 0 1 illegal: No possible last move
KB1bq1RQ/PPR2rn1/1kNr2q1/5PR1/qNn3b1/5r1p/1r5Q/b2B3Q b - - 0 1 illegal: No proof kernel
2bn3B/pBbn4/2BP1kr1/NqrrNb1K/R1N4P/2n1r2Q/3P1Qq1/3R4 b - - 0 1 illegal: No possible last move, all moves rejected
2QnK3/p1q1NP2/nq1bNB2/2R2b1B/2rk1P2/1R2q3/1r1P2r1/1RN1Q1nn b - - 0 1 illegal: No possible last move
R7/pqPb1Pk1/3B2NQ/2NbqP2/4brBr/n5r1/1qN1QbQ1/1n2RK2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 c4 Kf7 b4 h5 g4 e5 f4 d5 f6 e4 g5 h3 f5 h4 c5 e3 b6 d3 b5 h2 b7 e2 c6 d4 b6 d2+ Kf2 e1Q+ Kg2 d3 c7 h3+ Kf3 Qe5 Kf2 Nc6 b8Q Nge7 b7 Nb4 Qc2 d1B Qa2+ Bb3 Bb2 d2 Be2 d1R Nf3 Rd4 Ba3 Bd7 Kf1 Nc2 Bd6 Rf4 Na3 Nd5 Re1 Nc3 g6+ Kg8 g7 Rhh4 Bd1 Nb1 f7+ Kh7 Rg1 h1B g8Q+ Kh6 Qc8 h2 b8N Qdf6 Qa6 Bd5 Qg2 Qb2 Q2c4 Qfe5 Qce2 Be7 Qb6 Bg5 Qbe3 Kg7 Na6 Rg8 Nc5 Be4 Nb5 Nca3 Nd4 Rfg4 Q3d2 Be3 Nc2 Bf2 Qf4 Rg3 Qfe3 Rf4 Nh4 Rh8 Ng6 Rh5 Q2d2 Rhh3 Bg4 Rh4 Qee2 Bd5 Qh3 Bhe4 Qg2 h1Q Qc1 Rh8 Qcd2 Qh4 Rh1 Qd8 Rh2 Qdb8 Qde3 Q8b7 Qc1 Re8 Rh8 Re7 Rc8 Re8 Rb8 Rh8 Ra8 Rh4 Qcd2 Rff3 Qg5 Rf4 Qh6+
b2Nnb1b/4nBbq/1Q1r1b1B/6NN/knPb1p1Q/6rP/R1PKR2R/8 b - - 0 1 legal: proof: g4 c5 f4 h5 a4 hxg4 a5 e5 fxe5 c4 d3 b6 dxc4 bxa5 Bd2 a4 Bf4 Ke7 Bc1 Ke8 b4 g5 e4 f5 h3 d5 b5 Kd7 b6 Kc6 b7 a5 e6 f4 e5 d4 e7 a3 e8R d3 e6 g3 e7 a2 Kd2 a4 Qh5 g2 Ne2 g1B Nbc3 a3 Qf7 g4 Qh5 g3 Bb2 g2 Re1 a1B Ne4 a2 Nf2 Na6 b8N+ Kb6 Rc1 Nb4 Rb1 Ra6 Bc1 Bb7 Nd4 Nf6 Qh7 Ka5 Rh2 Rg8 Qh4 Qd7 Ne6 Ka4 Ng7 Rd6 Rb2 Ba8 Nh5 Rg3 Ne4 Bd4 Ng5 g1B Bg2 Be5 Bd5 Bgd4 Bg8 Qf5 Nc6 Qh7 Kd1 d2 Nd8 Re6 Ke2 d1N Bf7 Rd6 Bd2 Ne3 Bc3 Ned5 Kd2 Ng8 Bg6 Beg7 Bf7 Ba7 Bf6 Bd4 Be5 Bh8 Bg7 Ngf6 Bh6 Bfg7 Rg8 Bf8 Rg6 Ne8 Re6 Bdf6 Ree2 B6g7 Rb1 Bad4 Rb3 a1B Rb2 Nec7 e8Q+ Ka3 Qe4 Ka4 Qe3 Ne8 Qf2 Bdf6 Qc5 Bd4 Qb6 Bdf6 Rb1 Bad4 Rb2 Ne7 Ra2+
B1b2b2/B1NQ4/1QrnN1bP/n4Rn1/1nP4p/Nn6/3PkrR1/1R1q1nK1 b - - 0 1 illegal: No proof kernel
5k2/2NB2Q1/n3n1P1/3Qp3/1b1NPn1K/P1B1rr1n/1n5B/RqrbNn1R b - - 0 1 legal: proof: f4 a5 c4 h5 b4 d5 cxd5 axb4 g4 g5 fxg5 hxg4 Kf2 f5 Kg3 c5 e4 e5 d4 b5 h4 c4 h5 f4+ Kh4 f3 d6 b3 a3 b4 d5 c3 h6 c2 h7 f2 Bh3 f1N Nf3 b2 Qd3 g3 Qd1 g2 Qd2 g1N Qd3 b3 Nh2 Nf6 g6 Nfd7+ Kg4 Qb6 Qg3 Na6 Bf4 c1R Qd3 Ndc5+ Kh4 Ne6 Nd2 b1N Nhf3 b2 Nb3 Nbd2 Nbd4 b1N Ne1 Nc3 Bh2 Qb1 d7+ Ke7 d8N Nce2 Qb3 Nc4 d6+ Ke8 Bg4 Nb2 Qd5 Nh3 d7+ Ke7 Bf5 N2f4 Bg4 Rb8 Bf5 Rg8 h8Q Rb3 Qh7+ Rg7 Bg4 Rf7 Bf5 Re3 Bg4 Ng7 N8e6 Rf6 d8B+ Ke8 Ne2 Bb4 Nc7+ Kf8 Bd7 Nge6 Nd4 Rf5 Be8 Bd7 Bg5 Ba4 Bd7 Bd1 Bd8 Nh5 Bg5 Rff3 Bgf4 Rec3 Bd2 Rce3 Bc3 N5f4 Qg7+
K2B3n/b2b1b2/1PBNkrp1/8/2Q3PR/3bnNQ1/2P1Nr1q/B1Rr1b1b b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 g6 h6 Qc7 Bd2 Qe5 Bc1 Qg7 hxg7 Ba6 Ra2 Bb7 Ra1 Bc8 Kf2 Ke7 Kf3 d5 e4 h5 g4 a5 b4 f5 b6 h4 b5 h3 e5 a4 e6 h2 b7 d3 Be2 d4 Bb2 d2 Bc3 d3 Qc1 d1R Bd4 d2 Qb2 a3 Nc3 a2 Bf1 Nf6 g8Q Nc6 b8B Nd8 Rb1 a1Q Nh3 Nd5 Ng1 Nf7 Bda7 Bd7 Rc1 Ne3 Bd4 Ra6 Ke2 f3+ Kd3 f2 Bg7 f4 Ke4 f3 Bg2 f1B Nce2 f2 Nf3 Rh3 Ba7 Nh8 Qb3 Qa3 Qd3 Qd6 Bb6 Rh5 Bgd4 Rf5 Ba1 Bg7 Qb8 Bd4 Qc4 Bc5 Ba5 Ba7 Bc7 Rc6 b6 Qg3 Kd4 Kf6 e7 Qh3 Qc5 Ke6 e8N Rf6 Qb5 Rc5 Ke4 Rcf5 Nd6 Qh4 Bd8 Qg3 Neg1 Bc4 Ne2 f1B Kd4 Bd5 Kc5 Qh4 Qc4 Qh3 Nfg1 Rf2 Be4 Qh5 Nf3 Qh7 Ne8 Qh5 Qg3 Qh3 Nd6 Qh5 Rg1 h1B Rg2 Qh3 Rh2 Qg2 Rh4 Qh2 Qc3 Re1 Qd4 d1B Qd3 Bb3 Bc6 Ba2 Kb5 Bd5 Ka6 Bb3 Nc3 Bde2 Kb7 Rd1 Ka8 Bc4 Qd4 Bed3 Ne2 Bb3 Bc7 Ke7 Qb4 Bf7 Bd8+ Ke6 Qc4+
2b2kn1/Q2PnbQ1/PKB1B3/1nR1NR2/3P4/r6n/pnq1RBn1/br3N2 b - - 0 1 illegal: No proof kernel
R2bN3/b2P1p1Q/1Pb2Q2/n1k1qBrn/3b2PK/1bNRN2n/6r1/Q5Bb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 d4 Kd6 b4 c5 e4 a5 g4 h5 b6 f3 b5 h3 Kg3 f2 b7 h4+ Kf4 h2 Nd2 c4 Kf3 a4 Bd3 f1B Ra3 c3 Nh3 c2 Ra2 a3 Ra1 a2 Ng5 h3 Kg3 Bg2 Nf1 Be6 Be3 c1B Bg1 Be7 Ne3 Nc6 b8Q+ Qc7 b6 Rh5 Qc2 Bd8 Qa7 Nf6 Qa6 Na5 e5+ Ke7 Ne4 Rg5 Kh4 Nh5 d6+ Kd7 Rb1 a1B d5 Bd4 Nc3 Rc8 Rb3 Ra8 Nf5 Bf4 Ne3 Rc8 Bf5 Qb8 Na2 Bf3 Qb1 Rc2 Rd3 Rg2 Nc3 Be4 Qc4 Qc7 Qca2 Qc5 Qaa1 Bf3 Bf2 Qb5 Rhd1 h1N Bg1 h2 R1d2 Nf2 Ra2 h1B Qc2 Nb7 Ra8 Na5 Qcb1 Nh3 Qc2 Ke8 d7+ Kf8 d6 Bc6 Qcb1 Bb3 e6 Qe5 e7+ Kg7 Be4 Kf6 e8N+ Ke6 Bh7 Bc7 d8Q Bh2 Qb8 Bd8 d7 Bf4 Bf5+ Ke7 Nc7 Kd6 Ne8+ Kc5 Qbb2 Qe4 Qc8 Bb8 Qc7 Ba7 Qh2 Qf4 Qf2 Qe5 Qff4 Qd6 Qe5+ Qd5 Qh8 Qe4 Q2e5+ Qd5 Qef6 Qe5 Qh7
nKQ2b1b/3p4/P2r3b/P2b1N2/1b2B1R1/kR4qN/Br3nrP/1QB2bQ1 b - - 0 1 illegal: No possible last move, all moves rejected
2bQ1BB1/kbP1rn2/4nQ1N/b1Rr4/4qP1r/5bp1/P5N1/bBKN1b1R b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Kd2 g5 f4 e5 c4 d5 h4 Kd7 h5 Kc6 f6 b5 f7 Kb7 h6 g3 h7 e4 c6+ Ka7 c7 e3+ Kc2 d4 c5 g2 c6 b3+ Kb2 e2 Nf3 g1R Qc2 e1B Bg2 b4 Na3 d3 Qb1 d2 Bh3 d1B Be6 g4 Rh4 g3 Rh5 Qd5 Qe4 Nd7 Bd2 Nh6 Nb1 Nc5 Qc4 Bg7+ Nc3 Qe4 f8Q Nf7 Nh4 Bf3 Qd8 Be5 Bf5 Ne6 Ng2 Bb7 Qf6 Rae8 c8B Re7 c7 Rd8 h8N Rd5 Bg6 Rh1 Qd3 Rh4 Kc1 Bd4 Nd1 b2+ Kc2 b1B+ Kc1 b3 Bb4 Bec3 Bh7 Bb6 Bg8 Ba5 Qd2 Bd3 Rf5 Re8 Bf8 Bf1 Rh5 Re7 Bd7 Neg5 Bf5 Ne6 Rb1 Ba1 Qd3 Nfd8 Nf7 Bc8 Nh6 Nf7 Rb2 Bb7 Rc2 Bc8 Rc5 b2+ Kc2 b1B+ Kc1 Bb7 Qd2 Bbd3 Bfh7 Bda6 Bf5 Rg4 Rh1 Rh4 Qdd4 Bc8 Bfh7 Bab7 Bf5 Re5 Qd8 Rd5 Bfh7 Qe2 Bc2 Qe4 Bb1
4bnK1/2R1bB2/rnN2Q1q/3P1N1r/rR1P1Q1P/1pb5/rb2b1Q1/1k4BN b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 f4 g5 h4 g3 a4 g4 a5 b3 d4+ Kb4 f6 c5 f7 c4 a6 b2 f5 g2 f6 g3 a7 c3 Ne2 g1R Qd3 Kb3 Ra5 g2 Nf4 b4 Qc4+ Kc2 Rh2 b3 Nh3 Bd7 Rb5 Qb6 Be3 Be8 Qc6 Rh5+ Ke6 Nd7 Nd2 b1B Bd3+ Kb2 Be2 c2 Rb4 c1B Ne4 Bd3 Nhf2 Kb1 Ng3 Bb2 Nfh1 Rc1 Rh3 g1R Nf5 Rg2 Bg1 Rc4 Bg4 Be2 Rc3 Qa6 Qd6 Nb6 Qf4 Rac8 a8Q R8c6+ Ke5 e6 Qb8 Be7 f8Q Rf2 f7 Nf6 Qh2 Rd6 Qg2 Nh7 Qh6 Rdc6 f8N Rd6 Ng6 Nf8 Qf4 Rdc6 Qd8 Rd6 Rb5 Ra4 Rc7 Rc6 Rb4 Rd6 Ke4 Rc6 Qdd6 e5 Qf6 Rd6 Ne3 Rc6 Be6 Rd6 Nf5 Rc6 Ke3 e4 Bf7 Re6 Ne5 Rd6 Qff3 Rc6 Kf4 e3 Ke4 Nc4 Ng6 Bf1 Qh8 e2 Bg8 e1B Ne5 Ba1 Qf4 Rfa2 Qhg7 Be2 Q7g6 Rc5 Q6g5 Qd6 Nc6 Qh6 Qf6 Nb6 Ke5 Bb2 Be6 Rca5 Bg8 Ng6+ Ke6 Ra8 Rb7 R8a6 Rc7 Bd7+ Kf7 Nf8 Bh7 Bd2 Bg6 Be8+ Kg8 Bdc3 Bf7
1nbKbb2/1r2NB1Q/5r1B/1Prnr3/N1k1pNPq/QR2r1P1/4R3/1b5R b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 h3 b5 axb5 fxe4 Qg4 g5 Qd1 g4 hxg4 Qb6 Rh5 Qc7 Rh1 Qd8 Kd2 Kf7 b4 Ke6 c4 d5 f4 a5 g3 h5 b6 a4 b7 h4 c5 d3 Kc3 h3 Kd4 h2 c6 d2 Kc5 a3 b5 a2 c7 d4 Kb6 Kd5 f5 e5 f6 e3 f7 e2 Nh3 e1R Be2 d3 Nf2 Rh5 Rg1 h1B Bf1 Re3 Nh3 Kc4 Nf4 Nf6 Nc3 Ra7 Qc2 d1R Rb1 a1R Rb3 Bc6 Rh1 Be8 Qh2 Rb1 Na4 Rde1 Qh3 Rg5 Qh7 Qe7 Bg2 d2 Be4 d1B Bg6 Bc2 Bd2 Bcd7 c8N e4 Kc7 Rbc1 Rh2 Rh1 Re2 Rhf1 Bh5 Bb1 Bg6 Qd6+ Kd8 Nd5 Ne7 Re5 Bh5 Qh6 Bg6 Na6 b8R Qh4 Rb6 Rb7 Rf6 Bg7 f8Q Nb8 Bf7 Bc8 Rh6 Rff3 Nh5 Rf6 Nf4 Qg5 Rh1 Qh4 Nf5 Rcc3 Qa3 Bf8 Ne7 Kd4 Rb2 Rc5 Rb3 Kc4 Nd3 Ref3 Bh6 Re3 Nf4
rrk1rn2/3N4/R1b1rNnP/4rQ2/nPPBB2n/q1bQK3/R6p/4B2Q b - - 0 1 illegal: No proof kernel
b4nn1/1q1R1Qq1/2R1NP2/rPr1kN1n/3n1b2/pP1K2Q1/B1n4B/4Q1nB b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kf7 d4 Kf6 f4 c5 g4 e5 f5 a5 d6 h5 d7 c4 b3 c3 d5 e3 d6 h3 Na3 c2 Qe1 h2 Qb4 e4 g5+ Ke5 f6 h4 g6 a4 g7 h3 Bd2 c1N+ Kd1 e2+ Kc2 e3 Bg2 Qe7 d8Q Ra5 d7 Rh5 Qe8 Bb7 d8Q Ba8 Qd3 Nd7 Qf7 e1N+ Kc3 e2 Nc2 a3 Ne3 Nc2 Nf5 e1N Ne2 Nf3 Nf4 Rg5 Ne6 Nfd4 Rd1 h1Q Bd5 Qg1 Bh1 h2 Qh3 Nce2+ Kd3 Qg4 Rac1 Ng1 Be3 Qg2 Qe1 Qb7 Qg2 Na1 Rc6 Nac2 Qe8 Qf7 Qf3 Qg6 Qf7 Bd6 Qff2 Nf8 Qf3 Nh6 g8B Qg7 Bh7 Ng8 Qg4 Nge2 Bg1 Bb8 Bf3 h1N Bh2+ Ng3 Bh1 Bd6 Nf4 Nh5 Qgg3 Bb4 Bg6 Bd2 Ne6+ Bf4 Kc4 Nf3 Rd7 Ng1 Kd3 Ne3 Bh7 Nc2 Ne3 Ned4 B7e4 Qc7 Nf5 Qb7 Nd6 Ne3 Kc3 Rf5 Bb1 Rg5 Qg2 Rg3 Nf5 Rf3 Qg4 Rf2 Qf3 Rc2+ Kd3 Rc4 Qfg3 Rc5 Qb4 Nec2 Ba2 Qb8 Qd2 Qb7 Qde1+
Kb2nn2/1rr2kR1/2n2pq1/b4Q2/2n1N2b/1QbN1PPR/Rn2B2P/2B1N3 b - - 0 1 illegal: No proof kernel
1Q3n1Q/b4r2/3Pr1bq/K1brk3/BPPn4/1N6/pbR2rNR/2BN1r1Q b - - 0 1 illegal: No proof kernel
B1Nrrr2/2R5/1rQp2N1/3P2q1/RP2QPb1/rb1bK1N1/1k2nnb1/1Q2B3 b - - 0 1 legal: proof: h4 a5 b4 axb4 e4 f5 exf5 g5 c3 gxh4 Bb5 b3 Bb2 Bg7 Ba4 b5 Ba3 b4 Bc1 b2 Bb5 b3 Bf1 Be5 Rh3 Bd6 Rh1 Bb4 cxb4 Ra7 Rh3 Ra6 Rh1 Ra8 Ke2 Kf7 f4 e5 g4 h5 a4 c5 d4 d6 a5 e4 g5 h3 a6 e3 f6 Ke6 f7 Kd5 f8Q Kc4 d5 h2 g6 h4 a7 h3 g7 Bg4+ Nf3 Nh6 g8Q Nc6 Rg1 h1R Qf6 h2 Qh4 Qg5 Ra6 Rf8 a8N Nd4+ Ke1+ e2 Nc3 b1B Kf2 b2 Be3 Ba2 Ra5 b1B Ra4 Bb3 Bc1 Bd3 Ne4 e1R Bd2 Ne2 Ne5+ Kd4 Ng6 c4 Qh7 c3 Qh3 c2 Nb6 c1R Nc8 Rc6 Ng3 Rb6 Rg2 Kc4 Ke3 Rd8 Rf2 Rhf8 Qg2 Rg1 Qb7 h1B Qf3 Bg2 Qd7 Bbc2 Qe4+ Kb3 Qc6 Kb2 Rf3 Bb3 Rf2 B2f3 Rh2 Bg2 Rh1 Ng8 Rh7 Nf6 Rc7 Rh1 Qe6 Ne4 Qf5 Nf2 Qe4 B2f3 Bh3 Rh2 Bf1 Rhh8 Bh3 Rg1 Be1 Rfe8 Bf1 Rhf8 Bh3 Bh5 Bd7 Bhg4 Qc5 Bg2 Bc6 Rh1 Ba8 Rh7 Rc6 Ra7 Rc7 Ra5 Qc6 Rab5 Raa7 Ra5 Ra6 Ra1 Ra4 Ra3 Qb1+
b2Nr3/1n4Q1/1BPn2R1/q2npPNK/R1n5/k1n4B/r1Br1Prb/3RQ3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kf3 a5 g4 d5 b4 Kd7 c4 Kd6 b6 h3 b5 Kc5 g5 Kb4 g6 d3 b7 d4 g7 a4 b6 d2 c5 a3 c6 a2 Bd3 h4 Kg4 h2 Bf1 h3 Ne2 d3 Bg2 Na6 b8R Nc5 b7 Nf6+ Kg5 Rg8 Nf4 Nd5 Nc3 Qa5 Qg4 d1N Bf1 d2 Bb2 N1e3 Qf3 d1N Rg1 h1N Rg3 h2 Qe2 Nc4 Ne4 N1c3 Rd1 a1R Ne6 Ra2 Nd8 e5 Rg1 Ng3 Qe1 h1R Bh3 Be7+ Kg4 Bh4 Ng5 Nge4 Kh5 Ned6 Rg3 Re8 g8B Rg1 Bc1 Re2 Be3 Rd2 Bd4 Ka3 Be3 Na6 Bb6 Nc5 Rg2 Bg3 Bf7 Nde3 Bd5 Bh2 Be4 Ned5 Bc2 Nce3 Rg4 Rg2 Rb4 Ra6 Ra8 Nec4 b8Q Bb7 Qc7 Ra7 Rc8 Ba8 Qg7 Ncb7 Rc7 Qb5 Rf7 Ra4 Rf6 Qa5 Rg6 Nce3 Rg4 Nec4 Rd4 Kb4 Rg4 Ra2 Re4 Ka3 Rf4 Nb2 Rb4 Nbc4 Ra4+
1N3Q2/rR3Q2/Rrp1n2B/2bNbq2/2PknB2/4r1P1/K2R2P1/1r2Nbbr b - - 0 1 legal: proof: e4 f5 a4 fxe4 Be2 g5 Bd3 b5 axb5 d5 Ke2 g4 Ke3 g3 Kd4 e3 hxg3 e2 Be4 dxe4+ Kc4 Kf7 Kc3 Ke8 Kb3 Kd7 d4 Kd6 f4 Kd5 b6 e1R c3 e5 b7 a5 f5 h5 f6 c6 f7 a4+ Ka2 h4 b4 e3 b5 e4 b6 a3 Nd2 h3 Nf1 h2 Nh3 e2 Nf2 e3 Qa4 Nd7 b8B Ba6 b7 Qc8 Nd3 Ra7 Kb3 a2 Qb4 Ngf6 Qb6 Ne4 Qc7 Ndc5+ Ka3 Kc4 d5 Qf5 d6 Ne6 Qe7 Rd1 d7 e1R d8R e2 Bh6 Rg8 Rg1 h1R Bbf4 Rc1 Rb1 a1B Rb6 Bb2+ Ka2 Rh8 Rb8 Rb1 Qe8 Bb5+ Ra6 Bd6 Qe7 Be5 Qf6 Ba3 Qg6 Rd8 f8Q Rd4 Qh5 Kd5 Qhf7 Rdb4 Rc8 R4b3 b8N Bc5 Rc7 Kc4 Rb7 Kd5 Nb2 Bd3 c4+ Kd4 Ne3 Rb6 Qc7 Rec1 Nd5 e1B Qce7 Rc3 Qef7 Bf2 Rd1 Bg1 Rd2 Rcb3 Rf2 Bf1 Nd3 Rc3 Ne1 Re3 Rd2+
2r3q1/n4B2/1p1R4/1N1bbN1P/2R1QNrr/1kPQn1b1/1Bb1P3/rbK3B1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 a4 Ke6 h4 Kd5 c3 Kc4 e6 d5 e7 g5 e8Q f5 h6 d3 h7 f4 a5 f3 a6 d4 a7 g4 Qea4 g3 Nh3 b6 Nf4 g2 Rh3 g1B Qd7 b3 Bb2 f2 Ng6 Nc6 Bg2 f1R Qe7 Bf2 Rf3 Bg7 Qe4 Be5 Ra2 Bfg3 Re3 Nf6 Nf4 Ng4 Bh1 Qg8 Kc1 Rg1 h5 Bb7 Rf3 Ne3 Ra1 Rd8 a8N Na7 Nc7 Bd5 Ne8 Rc8 Bg2 Rh1 Ng7 Rh4 Rf2 Qd8 Bf3 Rg8 Nf5 Rgg4 h8B Qg8 Ra6 Kc5 Na3 d2+ Kb1 d3 Ra4 Rh2 Qc2 d1B Nb5 d2 Qcd3 Rhh4 Rd4 Bb7 Rd6 Bd5 Ba1 Bc2+ Kb2 d1B Kc1 Bb1 Bb2 Bdc2 Qa4 Ba8 Bd5 Bc6 Bf7 Ba8 Qae4 Bd5 Ba1 b2+ Kd2 Bba2 Bf6 b1R Bb2 Ra1 Rf1 Bab1 Kc1 Rh1 Bh4 Bf2 Bg3 Rhh4 Bh2 Bg3 Bg1 Bd4 Qd1 Kc4 Qdd3+ Kb3 Rd1 Bf6 Rc6 Bh8 Rc4 Be5 Qf3 Bb7 Qde4 Ba8 Rd6 Bc6 Qd3 Bd5 Qfe4
2B2r1R/K6B/p1QnkPPb/P2N4/1nrn1rr1/1b1nB1Q1/4N1q1/R1n4R b - - 0 1 legal: proof: e4 c5 c4 f5 h4 fxe4 b4 g5 bxc5 d5 cxd5 gxh4 Ke2 Kd7 Ke3 b5 Kd4 h5 f4 e5+ Kc3 b4+ Kc4 b3 Kb5 e3 a4 b2 d4 e2 g4 e1N f5 a6+ Kc4 e4 a5 h3 g5 e3 f6 e2 d6 h4 c6+ Ke6 Kc5 h2 g6 h3 c7 Ne7 Kb6 Nf5 d7 Nc2 Bg5 e1N Bc1 Rh4 Bd2 Nd6 Qf3 Nd3 Qf2 Nc6 Ra2 Nc1 Bg5 Bh6 Qg3 N6b4 Nc3 b1R Be3 Rg4 Nge2 Rb3 Nd5 Rc3 Bg2 Rc4 Ra1 Qe8 d8R Qa4 Bf1 Qa2 Rg8 Bd7 Rb8 Ba4 Rh8 Rf8 Ka7 Bb3 Bg2 Ne1 Be4 Nf3 Bb1 Qb2 Ba2 Qc2 Rd1 h1N Rf1 Nf2 Rh1 Ba4 Bb3 h2 c8B+ Bd7 Nb6 Nfd3 d5+ Kf5 Ba2 Nd4 Bb3 Be6 Ba2 Nb7 d6 Rf4 d7 Nd6 d8Q Qd2 Re1 h1R Nd5 Rhh4 Qc7 Rhg4 Rh1 Ke5 Nec3 Qg2 Ne2 Bd7 Qb6 Ba4 Qc6 Bb3 Bb1 Nc5 Bbf5 N5d3 Bfe6 Nca2 Bg8 Nac1 Bb7 Kf5 Bh7 Ke6 Bc8+
bn1K4/2B1Pkq1/5NQ1/n2NbP2/1r6/1Q1nb1R1/B1pP1Q2/Nrb2Rnn b - - 0 1 illegal: No proof kernel
4r3/b2rP1P1/2K3n1/3n1Nbq/pkn1n1BQ/1QbbN3/PB1R1Q1R/4n2B b - - 0 1 legal: proof: f4 c5 h4 g5 e4 gxh4 b4 e5 bxc5 d5 Qg4 Qc7 Qf3 dxe4 Qd1 e3 Rh3 e4 Rh1 Qe5 fxe5 Kd7 Rh3 Kd8 Rh1 Ke8 Ke2 Kd7 d4 Kc6 g4 Kb5 c4+ Kb4 e6 a5 d5 h5 e7 b5 g5 f5 c6 a4 c5 h3 c7 h2 d6 f4 g6 f3+ Ke1 f2+ Ke2 h4 d7 h3 d8Q Nf6 c6 Nd5 Qe8 Bh6 g7 Ba6 c8Q Bg5 c7 Nc6 Qg4 Ne5 c8B Ng6 Bd7 Ra7 Be6 Rd7 Qb8 Re8 Bg2 f1N Nc3 Nd2 Qd8 Nf3 Bf5 Ne1 Kf1 e2+ Kf2 Ne3 Be6 Nc4 Kg3 e3 Bb7 Nc2 Kf3 e1B Ke4 e2 Bf5 Bf2 Qd2 e1B Nf3 Ba7 Qf2 Bed2 Rd1 h1Q Qb8 h2 Bb2 Ne1 Be6 Bae3 Qgh4 Ba7 Nb1 Bc3 Na3 Qg2 Rd4 h1N Rd2 Qh2 Bg4 Qh3 Nd4 Qh2 Kf5 Ng3+ Ke6 Ne4 Nf5 Qh3 Qh6 Qh5 Nc2+ Ka5 Rb1 b4 Nce3 b3 Rc1 Kb4 Rcc2 Na5 Qbg3 Bd3 Qgf3 Nc4 Qd1 Ned6 Kd5 Ne4+ Kc6 Bcf6 Be5 b2 Ba8 b1N Bb2 Nbc3 Qdf3 Qh2 Qhh4 Nd5 Q3g3 Bc3 Qb8+ Ka5 Qb3 Qh3 Qg1 Qh1 Rh2 Qf3 Rcd2 Qe2 Qgf2 Qd1 Bh3 Qh5 Bg4 Nc5 Qd1 Ndf4 Qc2 Kb4 Bb7 Rdd8 Kc7 Rd4 Be4 Rd7+ Kc6 Nd5 Bh1 Ne4 Qb3+
q3n3/1k1PK3/B3R1RP/BnQ1b3/p1Bq1Pr1/b1b4b/2RNb1br/QN6 b - - 0 1 illegal: No possible last move
1R2R1r1/nKbP1p1n/1n2r2B/r3P1BN/2n5/PbQ4k/1Rr2q1r/1B4QN b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 h4+ Kg4 d4 c5 e3+ f3 d6 g5 Kd5 b5 h6 c4 h5 c3 e4 b3 h7 b4 a3 c2 h6 b2 e5 b3 Qe2 Ra5+ Qb5 f2 Rh3 Nd7 Kc6 Ngf6 Bd3 f1N d5 Ne3 Nd2 b1R Ne2 b2 Ne4 Ba6 Qb7 Bc4 Ra2 Qe7 Bd2 c1R Qb3 Qe6 Kc7 Qf5 N4g3 Qf2 Nh1 Be7 Rh5 Bd8+ Kb7 Bc7 Nf4 Rc3 Qc2 Rd1 Qb3 b1N Rb2 Nb6 Be4 Rg1 Qb4 Re8 h8Q Bb3 h7 Rg2 Qg8 Rh2 h8R Re6 Qg6 Nec4 Rb8 Rc1 Rhh8 Nc3 Nh5 Kh3 d7 g4 d8B g3 d6 g2 d7 g1R Bh6 Nb5 Bb1 Nh7 Re8 Rc2 Qc3+ Rg3 Qg5 Na7 Qc1 Kg2 Qg1+ Kh3 Qce1 Rgg6 Bdg5 Rg8 Qc3+
8/B1P1kb2/rn1n4/1Np1b1r1/3Pb2b/N1P1QB1n/R1b1qRn1/2Q2RQK b - - 0 1 illegal: No proof kernel
2qNQ3/B1Pq3p/5Nq1/bN1q4/1n2b3/PB2r2P/q1RBrRQK/qk1n4 b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 g5 fxg5 d5 exd5 c5 d4 cxd4 Kf2 Kd7 Kg3 Kd6 c4 Kc5 g6 f5 d6 e5 g7 b5 h3 d3 d7 Kd4 c5 f4+ Kh2 b3 g4 e4 a3 d2 c6 e3 c7 e2 g5 Kd3 g6 f3 Ra2 b4 Rb2 f2 Bg2 f1Q Ra2 e1Q Ne2 b2 Nd4 b3 Nc6 Qf3 Rg1 Ne7 g8N Bb7 g7 Na6 Qe2+ Kc2 Bf1 Qd5 Rg4 Qc8 d8B Nf5 Rb4 Ne3 Bg2 Nd1 Re4 Bb4 Re7 Ba5 Nc3 Nb4 Nf6 Re8 Nb5 Kb1 Rf7 Re3 Be7 Ra6 Nd8 Rae6 g8Q Qdd7 Nh5 Be4 Bc5 Qf2 Ba7 Qg3+ Kg1 Qg6 Nf6 Bb7 Bb6 Kc2 Qg4 Re2 Bf3 R6e3 Bg2 Nc3 Ba7 d1Q+ Kh2 Q1d3 Ne8 Nd1 Bd2 Qde4 Ra1 b1Q Ra2+ b2 Rf2 Qa1 Nf6 Qc4 Bd5 Qd4 Bc4 Be4 Qg2 Q4d5 Be1 Kc1 Qe8 b1Q Bb3 Qc2 Bd2+ Kb1 Bc4 Qb3 Rc2 Qba2 Bb3
4Qb1k/Bnp2qNN/3n4/rbR1R1Pn/3rR3/1Q1rr2P/2B1P1Kn/3r2B1 b - - 0 1 illegal: No proof kernel
2r1NQ2/1PrBQ2b/1QrBnb2/4P3/2R1bPNp/qk1nr3/5rR1/3b1R1K b - - 0 1 illegal: No proof kernel
Qnb1R1Qn/5r2/2r2b1R/B5PB/1KPbNnr1/1R2Q2n/P4p2/2rqk2N b - - 0 1 illegal: No proof kernel
1n2rkr1/1b4BK/q2N1b2/RR1b1P1n/2P1n3/1B1P3N/pQ1n4/bQ1r1B1N b - - 0 1 illegal: No proof kernel
1K3b1R/n4bn1/2Q2bbP/3Qrr2/1QP4k/2B1qr2/BP1NN1pR/3nB2r b - - 0 1 illegal: No possible last move
4qQr1/1K2bnN1/R1n4p/N3bPB1/b5n1/r2kQ2P/2RP2n1/BRQ1r1b1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 d5 axb5 g5 Be2 g4 cxd5 fxe4 f4 Qd7 Bf3 gxf3 Na3 Qd6 Nb1 Qd8 Kf2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 a5 b4 e5+ d6 a4 b6 f2 g3 f1N b7 e3 h3 Ke4 f5 a3 g4 a2 b5 e2 b6 e1N g5 Ra3 g6 Nh2 g7 Ng4 Nf3 Qe8 Ng5+ Kd3 Ne6 e4 Bb2 e3 Qc1 N8h6 g8R e2 Ng7 Nc6 b8Q Ng2 b7 e1B Qa7 Nf7 b8Q h6 Kb5 Bg3 d7 Bh2 d8B Bd7 Bg5 Be7 Rf1 Bg1 Re1 Na5+ Ka6 c5 Rf1 Nc6+ Kb7 c4 Qc5 Ra4 Na3 c3 Nc4 c2 Na5 Ra3 Rb1 a1B Qbe5 Bf6 Qf8 Be7 Bc3 Bb2 Rf4 Ba1 Rfb4 Bb2 Rb6 Ba1 Ra6 Bb2 Qce1 c1R Qc5 Rd1 Be5 Bbd4 Qc1 Ba1 Qf2 Re1 Bef6 Be5 Qfc5 Beh2 Ba1 Be5 Qb6 Nb8 Qbc5 Ba4 Qf2 Nc6 Qf4 Ke2 Qe3+ Kf1 Rbb6 Nb8 Qec3 Ke2 Rb1 Qd8 Qc5 Kd3 Qe8 Qd6 Qec8 Qd8 Re8 Rg8 Qa7 B7d6 Re7 Qf8 Rc7 Be7 Rc2 Nc6 Qe8 Bb4 Qe7 Qe8 Qf8 Be7 Qe3+
Q1N2K1N/6R1/1rPR1Bbr/2r1Qr1p/1Bn2nPb/5RbP/3Q1b1n/2q4k b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 f4 g6 f6 Bh6 Bd3 Kf7 Be4 Ke6 f5+ Ke5 f7 Kd6 f6 Bf8 Bf5 gxf5 Ke2 Ke5 Kd3 d5 b4 a5 c4 h5 g4 a4 h3 a3 b6 a2 b7 f4 b5 f3 b6 f2 c5 f1N c6 Ra6 Bg5 Rh6 Qc1 Bf5+ Ke2 Ke4 Qc5 e5 Kf2 d3 Qc1 d2 Ne2 d1R Nf4 d4 Rh2 d3 Qa3 d2 Qc5 Rc1 Na3 d1R Nb5 Ne7 Ng6 Nd7 b8Q Rd5 b7 Rb6 Qcd6 Rcc5 Nh8 Ng6 Qa8 Nf4 b8Q Be7 f8R Bg6 f7 Qc7 Rg2 Nh2 Kg3 Bd8 Kh4 Kf3 Rb1 a1B Rd2 e4 Na7 e3 Nc8 e2 Bf6 Be5 Kg5 Kg2 Rf1 Qa7 Rg8 Qa3 f8B Qc1 Rf3 Kh1 Rg7 e1B Qbc7 Bd4+ Qe5 Bg3 Qd6 Bdf2 Rd4 Rcb5 Qb4 Rdc5 Rd6 Be7 Qd2 Bd8 Qed5 Ne5 Qe6 Nc4+ Qe5 Bf7 B8e7 Nd3 Kf5 Bg6+ Ke6 Nf4+ Kd7 Bf5+ Ke8 Bg6+ Kf8 Ra5 Qa1 Rab5 Bc3 Rf5+ Bef6 Rbc5 Bb4 Bf7 Bb2 Bdh4 Bf6 Bg6 Qe5
Q4Qb1/Rn1rn1rP/1B1PP3/1Nb1bNR1/5q1k/6p1/1nK1R2B/r4brB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 d4 Ke7 Kd2 Kf6 e4 Kg5 b4 a5 d6 c5 d5 f5 h3 f3 b6 f2 d7 g3 b7 g2 e5 f4 b5 a4 b6 c4 Ba3 c3+ Kd3 c2 Qc1 Qf6 d8Q Bc5 Kc3 Kh4 Qf8 g5 Rh2 f3 Ne2 g1R Bg2 f1B Bh1 f2 Nd4 Nc6 b8R g4 b7 Rh7 Qd1 c1N Kc2 Re7 Qf3 Qf4 Nc3 Ra7 Ncb5 Rd7 Bb4 a3 Ba5 a2 Bb6 Na5 Nf5+ Kg5 Rg2 Nd3 h4+ Kh5 Ra8 Nb2 b8B Nb7 Re1 a1B Re2 Rg7 Qa3 Be6 Qa2 Bf7 e6 Ne7 Be5 Bg8 d6 Qd4 Bh2 Qf4 Re5 g3 Qa4 Kg4 h5 Kg5 h6 Kh5 h7 Kg5 Nh6+ Kh4 Qa3 Nd3 Rg5 Be5 Qa4 Nb2 Qa6 Na5 Qac8 Rd7 Ra7 Nb7 Qcd8 Be2 Qc8 f1R Qa8 Ra1 Rf2 Bf1 Rd2 Qf2 Re2 Qf4 Nf5+
3n1B2/1R3Prb/1K3nBB/NbP5/rQ3P2/1n5k/1q1rNbNp/n1QrR3 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 h5 Kc5 e5+ Kc4 d5+ Kd3 a5 c4 a4 b4 h3 f4 h2 g4 a3 b6 e4+ Kd2 d3 Kc3 h4 Kd4 h3 b7 a2 b5 e3 b6 d2 Ne2 Ra4 Ba3 Rh7 Qc1 d1R+ Nd2 Bd7 Rb1 a1N Rb4 Re7 Kc5 d4 Nb3 d3 Na5 Nc6 b8Q d2 b7 Rg7+ Kb5 Qc8 Kb6 Nd8 Rb3 Bb5 g5+ Kf7 f6 Ke6 g6 Kf5 f7 Kg4 Qd6 Nf6 Qb4 Qb8 c5 Be7 Bb2 Kh4 Rg1 h1B Bc3 Qe5 b8B h2 Bd6 Be4 Bg2 Bf5 Be4 Kh3 Re1 Qd4 Rb1 Nb3 Ba1 Qb2 Bc2 Rh7 g7 Be4 g8N Rg7 Nh6 Bh7 Nc3 e2 Ng4 Bc6 Bg6 Bb5 Rf1 e1N Ne3 Nc2 Re1 Ng8 Ne2 Bh4 Bf8 Bf2 Ng2 Nf6 Rg1 Re1 Rh1 d1R Rg1 Rd4 Rh1 Red1 Re1 Qa3 Bb2 R4d2 Be5 Qb2 Bed6 Rg8 Bh6 Nca1 Bdf8 Qe5 Rb2 Rg7 Rc2 Qb2 Rc4 Rc2 Rd4 Rcd2 Rd7 Bg3 Ra7 Bf2 Rb7
1N2B3/bP1br1k1/KBqPn2r/1n1R1B2/1rb3pn/1Pn1Q3/2RQ4/2NQb3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 a5 Ke2 f5 Kd3 Kf7 Kc4 c5 d4 g5 h4 a4 b3 f3 h5 f2 h6 g3 d6 g4 h7 a3 b6 g2 Kb5 f4 e5 a2 e6+ Kg7 e7 f3 e8B c4 b7 c3 d5 c2 d7 Qf6 d8Q Nc6 Bd2 c1N Bf4 Bd7 Rh6 Nge7 Ne2 g1B Qc7 Nf5 Qb8 Bb4 Qc8 Be1 Nd2 Nh4 Be3 Ra4 Nc4 Rb4+ Ka6 Nd8+ Nb6 Qc6 d6 Ne6 Bg2 f1B Rh5 f2 Rd5 Nd8 Rb1 a1N Rb2 Na2 Be4 Ne6 Bf5 Nc3 Qd8 Nc2 Qg5+ Ng6 Bc5 Ncd4 Qgd2 Ndb5 Rc2 Nh4 Nc1 Bc4 Be3 f1R Bf2 Rf8 Qe3 Rf7 Qdd2 Kf6 h8Q+ Rg7 Qh5 Re7 Qd1 Kg7 Qhh6+ Kg8 Qhf4 Kh8 Qed2 Kg7 Bc5 Bgf2 Qfe3 Rh1 Ka5 Bc8 Nd7 Bg1 Nb8 Bd7 Bb6 Rh3 Qe4 Bd4 Qee3 Bc5 Bd8 Ba7 Bb6 Rf3 Bd3 Rf6 Ka6 Rh6 Bf5
N3B1q1/b2K1R2/1q1Q1b2/r6N/3Q2BP/nP2B1b1/bPpq2nr/1q1kNR2 b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 exf4 g5 b4 g6 b3 axb3 hxg6 Bg2 g5 Bf1 g4 Kf2 Kd7 d4 Kd6 e4 g5 h3 a5 Ra4 c5 Nf3 f5 Ke2 g3 Kd3 g4 Kc4 g2 Kb5 g1B Qe2 g3 Rb4 c4 Qg2 c3 Nfd2 a4 Rc4 a3 Bd3 f3 Nf1 f4 Ra4 f2 Nh2 f1Q Be3 a2 Rc4 a1Q Be2 f3 Bd2 f2 Bg5 Nf6 Rc5 Qa7 Rc4 Nc6 Nd2 Qd1 Bg4 f1Q Qf2 g2 Be3 Na5 Nhf3 Bf5 Ne1 Be7 Qg3+ Qf4 Rc7 Qb1 Nf1 Nh5 Rb7 Bf6 Rf7 Bh2 h4 g1B Qf2 Re8 Ng3 Nc4 Qd2 Bf2 Rf1 Qg5 Qd1 Nf4 Nh5 Bhg3 Qd2 Re7 Qd1 Ng2 e5+ Kc7 e6 Kd6 Qd3 Qgg8 Qd2 Rd7 e7 Qac7 e8B Ra5+ Kb4 Qc6 Qd3 Na3 Qc4 Kc7 d6+ Kb6 Qd3 Re7 d7 Qe6 Qd1 Kc6 Qd3 Kd5 Qd1 Ke4 d5 Qa6 d6 Qe2 Qd2 Qc7 Qd1 Qd2 d8N Ree5 Ne6 Qb6+ Bb5 Bh7 d7 Rf5 d8Q Bg1 Qc7 Rf2 Qd6 Re2 Bc5 Bgd4 Nc7 Ke3 Na8 Bg6 Be6 Rf2 Qg4 Bd3 Qgf4+ Ke2 Bd7 Kd1 Bg4+ Re2 Qe4 Qa1 Qed5 Bb1 Qc4 Bg1 Be3 Ba2 Qcd5 Qb1 Qd4 Qbb8 Kc5 c2 Kc6 Qb6+ Kd7 Nf4 Qe4 Qc5 Bd4 Qcb4 Kc7 B1f2 Be8 Be3 Bc3 Ba7 Bd4 Qb8+ Kd7 Qb6 Bh3 Rf2 Be3 Rh2 Qed4 Ng2 Bg4+
rQ2rN1N/2b1Q2K/Rr1B1b1P/1qnQ4/3r4/1B2P1kP/Rp1b2n1/B3q2b b - - 0 1 illegal: No possible last move
1Rq1bb1q/r5kb/q3P3/3r3p/1P3P1K/q2B1NnQ/QB2bn1R/R1N2Q2 b - - 0 1 illegal: No proof kernel
2NB1N1R/Q2r1k2/bK1Prnqn/1R3P2/pb1Q3P/6n1/1rB2r1Q/2qN3n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ke2 e5 Ke3 a5 b4 c5 d4 g5 f4 g3 h4 c4 b6 g4 f5 c3 d6 a4 b5 c2 d5 g2 d7+ Kf7 b7 g3 b6 Qe8 d8Q Nd7 b8Q Ra7 b7 Ndf6 Qa5 Nh6 Nf3 g1R Nfd2 g2 Nc3 Bb4 Bd3 Rf1 Nc4 g1N Nb6 Rf2 Rb1 Ne2 Rg1 Ng3 d6 Nh1 Rg8 Rh7 Bb2 c1N Rh8 Ne2 Bc2 Neg3 Qd4 Ra8 Qba7 Rb8 Nd1 Qg8 Bc3 Qg6 Q5a6 Rg7 Qe2 Rh7 Kd2 e3+ Kd3 e4+ Kc4 Rg7 Qed2 e2 Kb5 e1R Kc6 e3 Bb2 Rf3 Qh2 e2 Bc1 Rf2 Bg5 Rg1 Kc7 e1Q Rb2 Rgg2 Rb3 Ra8 b8N Ba6 N8d7 Re8 Nc8 Re6 Kb6 Qe3 Rb2 Qc1 Rb3 Nfh5 Bd8 Nf6 Be4 Rb2 Bc2 Rf2 Nf8+ Ke8 Rc3 Rd7 Rc5 Kf7 Rb5
Q3rB2/b1NB2rk/Q2Pn1P1/1R6/b5b1/1r3PK1/pqqR3N/RBbr2n1 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 d4 Kf7 b4 Kg6 g4 c5 d5 a5 b6 e5 b5 h5 b7 e3 b6 e2 Qd2 h4 Nc3 a4 Qd3+ e4 Bb2 a3 Na2 h3 Nb4 h2 Bc1 c3 Ra2 c4 Rb2 a2 Na6 c2 Nb4 c3 Qh3 Ne7 Qg3 Nec6 Na6 Ra7 Qe3 Ne5 Qc5 Qc7 Qb5 Rh3 Nf3 Bc5 d6 Nbc6 b8R Nd4 b7 Kh7 Qa5 Rg3 Bh3 Ne6 Qb5 Qb6 Nc7 Be3 Rg1 h1B Qa6 Qb4 Bd2 c1B Nh2 c2 Bc3 Qa3 Rb5 Qb2 g6+ Kh6 g7 Kh7 g5 Bc5 Ba5 Rb3 Bc3 Bf3 Bd4 Bd7 Bc3 Bg4 g8B+ Kh8 Bf7+ Kh7 Be8 Bc6 Bd7 B5e3 Rd5 Ba4 Rd2 Bd4 Rf8 Bc5 b8Q Rab7 Qba8 Ba7 Nb5 Rc7 Rb8 Rb7 Bc6 Rg7 Bd7 Ng6 f3 Ngf4 Bf1 Nh3 Rh1 Ng1 Nc7 Re7 Bd4 Rg7 Kf2 e1R Kg3 e3 Rb5 e2 Bf6 Rd1 Be7 e1R Bf8 Ree3 Bd3+ Re4 Re2 Bd2 Rf2 c1Q Bb1 Qcc2 Rg2 Bc1 Rd2 Ree3 Q6b7 Nh3 Ne8 Nd4 Nf1 Rde1 Nc7 Re8 Nh2 Ne6 Rf1 Ng1 Qa6 Qg6 Bc2 Qe4 Rd1 Bce3 Rf2 Bd2 Ra1 Rd1 Bb1 Bc1 Rd2 Qec2 g6+
5Nb1/8/1P1q1n2/q2r1nP1/N3QrNB/1bRbR1bB/3PrrpR/k1KQ4 b - - 0 1 illegal: No proof kernel
4B1kr/1N4r1/P2Rr1n1/r3R1Q1/1P1QbP2/npKbQ1Bb/4q3/2b1NN1q b - - 0 1 illegal: No proof kernel
3q2qR/1K1BqrBp/1N5Q/3rP3/2bP1Q1q/k3P1Nb/n5nR/bBR3b1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Qg5 Kf3 Kd7 Ke4 c5 Kd5 a5 g4 f5 b4 f4 d3 a4 b6 f3 b7 a3 b5 a2 b6 c3 Nh3 f2 Nd2 c4 Nb1 c2 Nd2 c3 Nf4 h3 Nh5 h2 Ng3 Ra5+ Ke4 Kc6 Qe1 Kb5 Kd5 Ka4+ Kc4 Nh6 Bh3 f1B Qf2 Nc6 b8R Nb4 b7 Nf5 d4 Qe7 g5 Nh4 g6 Bh6 g7 Be3 Qf6 Bg1 g8B Ng2 Bge6 Bd7 Bhf5 Rf8 Qg7 Rf6 Rh8 Qd8 Ba3 c1Q Qh6 c2 Be4 Qg8 b8Q Rd5 Qbf8 Rf5 Qf4 Rf7 Q8h6 Qb2 Rd1 a1B B6f5 Na2 Bf8 Qb1 Bg7 Ka3 Bd3 Qbb8 e3 Qbd8 Bh3 Rd6 Kc5 c1Q+ Bc2 Qb1 Rc1 Qb7 Bb1 Be6 Bg4 Qbe7 Bgf5 Rd7+ Kc6 Be2 Bh3 Rd5 Bg4 Bd7+ Kb7 Bd3 Nb3 Be2 Nc5 Bc4 Na4 Bf2 Rhf1 h1Q Nb6 Qhh4 Rh1 Bg1 Rh2 Qee8 Bd1 Qee7 Ba4 Bh3+ Bd7
1n4k1/2K1R1P1/2N2n2/R1P3Q1/3Nb1N1/b1Q1PnpB/1B2r1qn/r1b1Qbq1 b - - 0 1 illegal: No proof kernel
2K2R1b/2B2pbn/3Pr2B/q7/bRB2RnN/nQ2kN2/PP2b1r1/2n2Qq1 b - - 0 1 illegal: No proof kernel
b3q1B1/1QrBBp1P/1b6/4krQq/K1Rb1Q2/1n1rP3/b3NnNP/5r1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 c4 Kd6 Kc2 a5 Kb3 g5 c5+ Ke5 h6 d5 b6 f3 b7 d3 e3 d2 c6 g4 c7 g3 Qe1 d1R Qe2 f2 Nh3 d4 Qd2 a4+ Ka2 a3 Kb3 d3 Nf4 a2 Na3 g2 Qa5+ Bc5 Nb1 g1Q Nd2 Qg6 Ka4 Qh5 b4 Na6 b8Q Nf6 b5 Qe8 Ng2 Ne4 Qb7 Be6 c8B Ra7 Nb3 d2 Ba3 Bb6 Rc1 a1B Nd4 Ba2 Ne2 Bad4 Be7 Rh7 Bd7 Nac5+ Kb4 Rh8 Rc4 Nb3 Ka4 Rh7 Qa8 Rc7 Qb7 Bbc5 b6 Rg7 Nef4 Rg5 Bd3 f1R Ne2 Nf2 Bh7 Rf5 Bg8 Ra1 h7 d1B Ng1 Bf3 Ne2 Rfd1 Qc6 Rd3 b7 Rc1 b8Q Rf1 Qh6 Ba8 Qb7 Rfd1 Qg5 Rf1 Qaa6 Ba7 Qag6 Bab6 Q6h6 Qf3 Qhh4 Qh5 Qhf4#
5n1k/bbbrBnN1/3q2Qn/R3P3/2b5/PBq1QBpK/3Qq1PN/3Rb3 b - - 0 1 legal: proof: f4 d5 c4 dxc4 h4 a5 b4 axb4 Qb3 b5 Kf2 e5 fxe5 g5 Ke1 g4 Qd1 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Bc5 Rh2 Bd6 Rh1 Bf8 Kf2 c5 Kg3 f5 d4 Kf7 e4 Kg7 g6 h5 a3 c3 e6 h4+ Kh2 c2 e5 c4 e7 g3+ Kh3 c3 e8Q b3 d5 b2 d6 b4 d7 b3 Qe2 f4 Qd2 f3 Qf4 f2 Qf3 Bb7 Be3 c1B Bc5 c2 Ba7 Rh7 Qd1 Nh6 Be2 f1Q Nc3 b1Q Qd6 b2 Ra2 Be3 Bd3 c1B Ba6 Qe2 Ra1 Bcd2 Na4 Qc2 Rd1 b1B Qb6 Bd6 Nc5 Bc7 Nf3 Qc3 Nh2 Be1 Rd5 Nf7 Qb3 Qf6 d8Q Ba2 Bc4 Qd6 Ne6+ Kh6 g7 Nd7 g8B Nf8 Bb8 Ba7 Ng7 Kg6 Qb6 Kh6 Bb5 Bc4 Bc6 Kg6 Ra5 Kh6 Bf3 Kg6 Kg4 h3 Qdd7 Kh6 Qe3+ Kg6 Nf1 h2 Rg1 h1N Nh2 Bd2 Rd1 Be1 Nh5 Nf2+ Kh4 Qa6 Qdd2 Ng4 Kh3 Nh6 Ng7 Qd6 Qc6 Nd8 Bgd5 Ndf7 Qe8 Rh8 Qe6+ Kh7 Qg6+ Kg8 Be6 Rh7 Bed5 Bd8 Bc7 Kh8 Bb6 Bc7 Bc5 Bca6 Bb3 Bc4 Ne6 Nd8 Bb4 Rd7 Ng7 Ndf7 Bc5 Qf6 Be7 Qc6 Qh5 Qd6 Qg6
b3r2k/N1r2pbq/3r1r2/1q1R1P2/RQ1PRB1r/1B3n1N/3Pqb1Q/6NK b - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 g5 e3 b5 axb5 gxh4 Ra4 Nc6 Ra1 Nd4 exd4 Qd6 Ra4 Qd5 Ra1 Qd8 g4 e5 b4 h5 f4 a5 Kf2 c5 Kg2 e4 b6 a4 b7 c3 b8R e3 b5 c4 b6 h3+ Kh2 a3 f5 a2 b7 e2 g5 e1B g6 h4 g7 c2 Bg2 c3 Bd5 Ra6 Bf3 Rf6 Ne2 Bf2 Bb2 c1Q Qb3 c2 Ng3 Qe1 Qc3 c1R Be2 Ne7 g8Q Qd5 Qg6 Nc6 Bd1 Ne5 Ba3 Qb5 Qh6 Bg7 Bb3 Qee2 Re1 Nf3+ Kh1 h2 Qb4 Rc7 Nc3 Rd6 Qh7 Kf8 Nge4 Rg8 Qh6 Rh8 Qh5 Kg8 Ng5 Rhh6 Nh3 Kh8 Ra8 Rf6 b8N Bb7 Ra5 Ba8 Nc6 Rd6 Rad1 a1R Na7 Ra2 Ra1 Rb2 Qg4 Rhf6 Qg1 Rc2 Qg2 Rc8 Qg1 Re8 Ra2 Qb7 Rd5 Qbb5 Nd1 Rc7 Nc3 Qf1 Re4 Qfe2 Kg2 h1R Qh2 Qec4 Ne2 Qd3 Nef4 Qe2 Ra1 Rhc1 Ng1 h3+ Kh1 Re1 Qg3 h2 Nh3 Rd1 Bb2 Rdc1 Ra4 R1c6 Qe5 Rh6 Ba3 Rh4 Qa5 Rf6 Bd6 Ra6 Qg3 Rb6 Bf4 Rbd6 Qg2 Rc2 Qb4 Rc7 Ng5 Rh3 Qg3 Be1 Qf2 Rhh6 Kg2 h1Q+ Kg3 Qh4+ Kg2 Qh5 N5h3 Qg6+ Bg5 Qh7 Kh1 Rh4 Qh2 Bf2 Bf4
b2rk3/2QPn1q1/RN1p1n2/1r1qR1B1/qrNnQ3/B1n1KP2/3Pn1Q1/1B6 b - - 0 1 illegal: No possible last move, all moves rejected
Q4N1K/1br3p1/2NB1PP1/7B/r2Qbb2/1bP1r1rR/nRbR4/rqN4k b - - 0 1 illegal: No possible last move, all moves rejected
b4Rrk/1BbbN2P/1BNQp1r1/1b2Pq2/N4R1Q/1Rq3nq/1P2b3/6Kb b - - 0 1 illegal: No proof kernel
N4nQ1/2N1K3/BbP2Qb1/8/r1P3b1/2b1pbRn/2QBP2q/q2NnRbk b - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 g5 h4 f5 b4 a5 Bh3 axb4 Bg2 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Rh3 g4 Rh1 Rg5 hxg5 Qa5 Bh3 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Ke6 Ke4 d5+ Kd4 Kf5 a4 e5+ Kd3 h5 f4 h4 c4 h3 g6 e4+ Kd4 h2 a5 b3 g7 g2 c6 g3 a6 Kg4 Ke5 b2 a7 d4 a8N d3 f5 b4 f6 d2 f7 b3 Nb6 Qc7+ Kd5 Na6 Nc3 b1B Na2 b2 Na4 Nc5 Nb4 Nd3 Nc3 Ne7+ Kd4 Ng6 Kd5 Ne1 g8Q Bg7 Qd8 Nf8 Na4 Bc3 Nh3 g1B Ra3 g2 Nf2+ Kg3 Na6 Bg4 Qc2 d1N Bd2 Qf4 Nh3 Bb6 Nc7 g1B Qf6 Nf2 Bg2 Qh6 Kd6 Qh7 Ke7 e3 Ra1 Rg8 Be4 Qh4 Bf5 Kg2 Bc8 Rg5 Ba6 Ra5 Qb3 Bd3 Qc2 Bg6 Rc1 b1Q Rd1 Ne4 Nf2 Qa1 Rb1 Qh3 Nd1 Nf2 Rb5 Qh4 Rd5 Nh3 Rg5 Bbd4 Nb6 Ra4 Nba8 Bb6 Qf4 Bf2 Rf1 h1B Qf6 Bg1 Rgf5 Kh2 R5f3 Qh7 Rg3 Bhf3 Qg5 Qh6 Qh4 Kh1 Qf6 Nd7 f8Q Qh4 Qc8 Nf8 Qe6 Qh6 Qg8 Qf4 Rg2 Qh2 Rg3
1N2q1q1/2B1rBp1/2b1R2k/1bR3Pb/2b1bP1b/q2rN3/N6P/B1QQ1nK1 b - - 0 1 illegal: No possible last move
1bnQ3R/2q1b3/N2k4/3bpPbR/P1b1qb1Q/2N1Pn1B/1qN1rBK1/6Q1 b - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 h4 b5 b4 a5 Bg2 axb4 Bf1 Ra6 Bb2 Rg6 Bc1 fxg4 Bb2 g3 Ba3 g4 Bc1 Rg5 hxg5 Be6 Rh5 Bd7 Rh1 Bc8 d4 Kd7 f4 e5 a4 c5 g6 h5 d6 c4 f5 c3 g7 g2 Kf2 h4 d5 b3 Ba3 c2 Qc1 h3 Bb2 g3+ Kf3 h2 Qe1 c1B Na3 b4 Nb5 Bf4 Nc3 Nc6 Bc1 b2 Ra3 b1Q Qf2 b3 Nh3 g1B Ra2 g2 Be3 b2 Qh4 Qc7 Ng5 Ba6 Ne6 Be7 Nd4 Bc4 Bf2 Bfg5 Kg3 Qe4 Nc2 b1Q Rb2 Qc1 Rb8 Nd4 Rf8 Nf3 Kh3 Nf6 g8Q Qb2 Qg7 Rh6 Rh8 Ng8 Qg6 Bf8 Qg7+ Ne7 Qg6 Nc8 Qg8 Ke8 d7+ Ke7 d8N Kd6 Nc6 Bfe7 N6b4 Bf4 Na6 Beg5 Bg3 Ba7 Bf2 g1B Kg2 Be7 Qgg4 Bb8 e3 Bfg5 Kg3 Rg6 Bh3 Rg8 Kg2 Rg7 Be1 Bf2 Rh5 Bg3 Bf2 B3f4 Rh8 Kd7 d6 Kc6 d7 Kd6 Re1 Rg6 Re2 h1B+ Kf1 Kc6 d8Q Rd6 Qg1 Rd3 Re1 Rd2+ Qd3 Re2 Qd8 Bb4 Rd1 Bbe7 Rd7 Bd6 Rdh7 Bde7 Qg8 Kd7 Rh5 Kd6 Qd8+ Kc6 Na2 Nd4 Qg2 Qf3 Qf8 Kd6 Qg1 Qd5 Qe8 Be4 Nc3 Nf3 Qg8 Qd4 Kg2 Bed5 Qf8 Qe4 Qd8+
kb2q3/Q3R2q/P1NN1q1P/5p1R/KQ4B1/BQq2P1n/n1nBnnb1/2r5 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g3 axb4 g4 hxg4 d4 b5 e4 Nf6 d6 Kd7 e5 Ke6 d7 Ra6 d5+ Kf5 Ne2 Ng8 Ng1 Rd6 exd6 Kf6 Kd2 Ke5 Kc2 c5 Kb3 g5 h4 c4+ Kb2 b3 Ka3 b2 f3 g3 h5 g4 h6 g2 Qd3 c3 Qd1 c2 Nh3 g1N Nf2 g3 Rh4 g2 Rc4 b4+ Kb3 Ne2 a4 g1N a5 Nc6 a6 Qe8 d8B Bh3 d7 Kd6 Ba5 e5 Qe1 e4 Bg5 c1Q Ra3 e3 Rh4 Bg2 Qd1 Nh3 Bgd8 Qc3+ Ka4 b3 Nd3 Nb4 Rh5 Na2 Nb4 Nf6 Nc6 Ng4 Nd2 b1Q Nc4+ Kc5 d6+ Qf5 Qd2 b2 Be7 b1Q d8Q Ngf2 Qb8 Qfe5 Qd1 Qh7 Qdb3 f5 d7+ Qd6 d8Q Bg7 Q3b7 Be5 Qb3 Rg8 Qdc7 Rg7 Bg5 Qf6 Nd6 Rf7 Qcb7 Rc7 Q8a8 Rc8 Qe7 Rc7 Bb4+ Kb6 Bf4 Ng3 Qf8 e2 Bd2 e1N Qe7 Nc2 Qf8 Rb7 Qa7+ Kc7 Bc5 Ne2 Bb4 Nac1 Ra1 Na2 Re1 Bg3 Ba3 Bf4 Nb5+ Kc8 Qfc5 Bb8 Qcb4 Rd7 Bdc1 Rd1 Bd2 Neg1 Re7 Rc1 Bc4 Ne2 Bf7 Ng4 Rh4 Ngf2 Bh5 Rd1 Bg4 Rc1 Rh5 Bc7 Qe3 Bd6 Nca7+ Kb8 Nc6+ Ka8 Qed4 Bc7 Nd6 Bb8 Qa7+
nB2K1b1/4nB1p/1Q1b1b2/1Q4NR/r3Pn1k/5P2/NN1b3P/Qqq1bnR1 b - - 0 1 illegal: No possible last move, all moves rejected
R1NQ3q/2k2rr1/P4n1n/1nbp1q2/KN1P2q1/1RB2Pr1/Q4R1r/qB1B4 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 g4 c5 d4 h5 Kd2 d5 a4 Kd7 f3 e5 f6 e4 f7 c4 b6 b2 Kc2 h3 g5 e3 b7 b3+ Kc3 h4 g6 e2 a5 e1Q+ Qd2 h2 g7 h3 a6 Qg5 Bd3 Kc7 Ra5 Qg4 Ra2 Ra7 Bc2 Nh6 g8B Bc5 f8Q Rh7 Na3 b1Q Bd1 b2 Ne2 Rf7 Ng3 Nd7 b8R Qbf5 Rb3 Nf6 Bh7 b1N+ Kb2 Rb7 Ne4 Nc3 Nc2 Nb5 Nb4 c3+ Kc2 Qeg1 Bb2 Qf1 Rg1 h1R Qe2 h2 Rg2 Qgf4 Rg8 Q4g4 Rh8 Rg1 Qd2 h1Q Qh2+ Qe5 Nd6 Rg3 Nc8 Ra7 Be4 Qef5 Qd8+ Kb8 Qb6+ Rfb7 Be2 Nd7 Nd6+ Ng8 Rba3 Nf6 Kb3 c2 Bc3 c1R Ka4 Rc2 Rb3 Qa1 Bd1 Re2 Qa5 Rg7 Bb1 Raf7 Qf2 Re1 Qb2 Re2 Qa3 Reg2 Rf2 Qhh3 Qa2 Rh2 Nb7 Kc8 Nd6+ Kd7 Qb6 Qhh7 Qa5 Nh6 Ra8 Qh8 Nc8 Rg6 Qb6 Rgg7 Qe6+ Kd8 Qe8+ Kc7 Qd8+
NrbQ4/2p1PQP1/4b2K/1Q1BkbB1/1R1r3b/r2B4/1rP1Rnq1/2r3rN b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 a4 exd4 axb5 Ke7 g5 Ke8 h5 Nc6 Ra6 Ne5 Ra1 Ng6 hxg6 Bh6 Bd2 Bg7 Bc1 Bf8 Kf2 Ke7 Kf3 Kd6 Kg4 f5+ Kh5 a5 b4 d3 e4 a4 g7 d2 g6 a3 b6 a2 b5 f3 b7 f4 b8Q f2 b6 f3 b7 Nf6+ Kg5 h5 g8B h4 g7 h3 Bb3 h2 Na3 Be7 Qe1 d1B Bd3 f1B Bg8 f2 Qe3 Ke5 Qea7 d5 Rb1 a1R Qa4 d4 Bdc4 d3 Qb5+ Qd5 Ne2 d2 Rb4 Rb1 Ng3 Bfh3 Re1 h1R Re2 f1R Bd3 Bhf5 Qc4 Qc6 Bd5 Rb2 Qb5 Bce6 Qg8 Rhg1 Qf7 Rhb8 Kh6 Re1 Nh1 Ng4+ Kh5 Nf2 Kh6 Bh4 Nc4+ Kd4 e5 Ra3 Qa6 Bc8+ e6 Ref1 Qb5 Re1 Re5 Bdg4 Re2 d1R Bf4 Rd2 Bg5 Rc1 Nb6+ Qc4 B3e4 Ke5 Bd3+ Qe4 e7 Bfe6 Na8 Bgf5 Nb6 Rba8 b8Q Rdd1 Qb7 Rb8 Na8 Rd2 Qd7 Rdd1 Qd8 Rd2 Be3 Qg2 Qb5 Rdd1 B3e4 Rdd3 Bg5 Rd4 Bd3+
2b3QR/4RnBn/2N3q1/3Q1nk1/pPK4P/q1B1PR2/1q2r2p/bbr3NB b - - 0 1 illegal: No possible last move, all moves rejected
1R1N1r2/1Nq2n2/Rb1b2BQ/3k1pQK/p1n1B3/1qP1Q2B/1n2PPq1/3b2r1 b - - 0 1 legal: proof: d4 b5 a4 bxa4 h4 g5 hxg5 c5 dxc5 e6 Be3 e5 Bd4 exd4 b4 Ke7 g4 Ke6 b5 h5 c6 f5 b6 d5 g6 a5 c7 a3 c3 d3 g7 d4 b7 a2 g5 h4 g6 h3 Qd2 h2 Bh3 Nc6 b8Q Ne5 Qb6+ Bd6 Kf1 Nh6 Kg2 Kd5 Kg3 Rg8 Nf3 Nc4+ Ne5 Nf7 Qh6 d2 Na3 d1Q Nb5 d3 Qbe3 Qb3 Rhb1 Bd7 c8B Qc7 Kh4 h1Q Kh5 d2 Nc6 d1N Bb7 Raf8 Nd8+ Bc6 Ba8 Qg2 Rb2 Bc5 Nd6 Bb6 N6b7 Ba4 Rbb1 Qb5 Rb3 Ndb2 Rb4 Bd1 Rb3 Rh8 g8B Rh7 Rb4 Rg7 Bh7 Rgg8 g7 a4 Rb1 a1B Bg6 Nd3 R4b3 Bb2 Rb4 Ba3 R1b3 Rh8 g8Q Ndb2 Qg7 Rh7 Qf6 Rg7 Qfg5 Na5 Re4 Bd6 Re6 Qbc4 Rb4 Qb3 Rb5+ Bbc5 Rb6 Nac4 Ra6 Bb6 Re8 Qa2 Ne6 Qa3 Rb8 Qb3 Ned8 Bh2 Qge7 Bd6 Bh7 Qf1 Qh4 Rg4 Q4g5 Rg1 Bg6 Qg2 Nc5+ Qc6 Qc1 Ke5 Qcd2 Qc7 Be4 Be7 Qde3 Bd6 Bd3+ Kd5 Ncb7 Ba3 Bc2 Bd6 Be4+
5q2/1bnR1Q2/1bB1k3/RqpRPnnK/2NB1qBP/1pN2b1Q/1P2r3/1r6 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 e5 cxd5 exf4 Qc2 h5 Qc5 hxg4 Qxa5 Rh5 Qa7 Rh8 Kf2 Kd7 a4 g5 e4 f5 h4 b5 d4 b4 a5 f3 Kg3 f2 d6 f4+ Kg2 b3 d5 f3+ Kg3 Nh6 a6 Nf5+ Kh2 g3+ Kh3 g2 Kg4 Bb7 Bc4 f1Q Qe3 f2 a7 Na6 Nf3 g1N Nc3 Nh3 Be2 c5 Ra4 Be7 Nd2 Nc7 Ra5 Qf8 Nc4 Bd8 e5 Rg8 Kh5 g4 Rh2 g3 Bg4 g2 Rh1 Ng5 Qh3 g1Q Be3 Qgg2 Bd4 Qe4 Rg1 Qfd3 Rd1 f1B Rd2 Qf4 Rd1 Rc8 a8B Bg2 Rd2 Bf3 Rd1 Ke8 d7+ Ke7 d6+ Ke6 Rd2 Ne8 Rd1 Bb6 d8R Nc7 Rd7 Rd8 Rd2 Bc8 Bc6 Bb7 Be3 Qf1 Rd5 Ra8 Bd4 Ra6 Rb5 Ra1 Ra5 Rc1 Rh7 Re1 d7 Rb1 d8Q Qe2 Rhd7 Qf1 Nd6 Qb5 Qe8+ Qe7 Qf8 Nf7 Qg7 Qf8 Qh7 Bh1 Be2 Rg2 Nc4 Ng5 Bf3 Re2 Bg4 Bf3 Qf7+
nb1N1K2/1R2N2q/1r3p2/Qn1R2bk/2RP2bq/BBp1q3/5P1P/Qr1rN3 b - - 0 1 legal: proof: a4 d5 c3 b5 axb5 d4 cxd4 Qd5 Ra4 Qd6 Ra1 Qd8 g4 h5 d3 hxg4 Qd2 e5 Qc2 e4 Qd1 exd3 Kd2 g5 Kc3 a5 Kc4 c5 b4 g3 e4 g2 b6 g4 b5 g3 b7 a4 e5 a3 b6 d2 e6 a2 e7 Bg4 Qe2 d1R Bb2 Nf6 Qd2 Ne4 Qd3 Rh6 Be2 Nd7 Kd5 c4 b8N Nd6 b7 Nb5 Nf3 g1Q Qa3 g2 Qc3 Rb6 Qa5 Qe1 Nc3 g1Q Nc6 Rb8 Ba3 f6 Bf1 Qc7 Nd8 Qe3 Ne1 Qgg3 Bd3 Qh4 Bc2 Bh6 Bb3 Bf4 Rg1 Be5 Rc1 a1B Rg3 Bf4 Rf3 Be5 Rf5 Bb2 Rc2 Bc1 Rh5 Ra8 b8R Qa7 Rb7 Bb8 Na2 Bd2 Nb4 Rb1 Nbc6 Rd1 Ne6 Kf7 Ned8+ Kg6 Rg5+ Kh6 e8Q Rb1 Ne7 c3 Rb2 Rd1 Rc7 Bc1 Rc4 Qc7 Qf7 Ra7 Qe6 Rab7 Qf5 Bd2 Qb1 Bc1 Qa1 Bd2 Rg7 Kh5 Rb1 Qd3 Rb2 Bg5 Re2 Qf4 Re5 Qh7 Rf5 Qe3 Re5 Ra6 Rf7 Nb6+ Kc5 Na8 Rd5 Re6 Rg7 Nd6 Kc6 Rb4 Kd7 Nb5 Ke8 Ra6 Kf8 Rb6 Bc2 Rbb1 Bb3 Qc1 Nf5 Qf4 Rb7 Qe3 Ne7
4rb2/1b1K1BqN/3PR1Rr/r3kP1Q/2q2p1N/1Q1b1Pn1/1pB5/1Q3nqB b - - 0 1 illegal: No proof kernel
1n5n/2N1K3/3Pnp1R/Qb4k1/RQbbpqPN/4N1r1/rP1qB2B/2B1r3 b - - 0 1 illegal: No proof kernel
nR2rbN1/3Qn3/2P1N3/3Pn1K1/1Q2pN2/2p1r2q/q1P2Bb1/bQkBq1R1 b - - 0 1 illegal: No proof kernel
1r1r1R2/1Q2K1b1/NBP2ppq/4Nr2/Q2QB3/1R1b1nP1/Pk1qb3/5qnR b - - 0 1 legal: proof: f4 a5 h4 e5 fxe5 c5 d4 cxd4 b4 axb4 h5 g6 h6 Qb6 Na3 Qf6 Nb1 Qg7 hxg7 Ra7 Kd2 Ra6 Ke1 Ra8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 Kg5 Kc4 e4+ d3 g3 b5 c3 h5 e6 d5 e5 b3 e7 h4 e8Q f6+ Kf4 b2 e6 b4 e7 b3 Rh2 h3 Qe1 d4 Bd2 Bf5 Qe4 Ra5 Qg2 Nh6 g8R Nf7 Be1 Ne5 Qd7 Nbc6 e8Q Bg7 Nf3 Bg4 Qh1 Bh5 Rg2 h2 Rc2 Rc5 Qg1 h1Q Bg2 d2 Ke4 d1R Qb7 d3 Bf2 d2 Bd4 Ra5 Bb6 Nd4 Rc1 Ne2 Qea8 Kb5 Kd5 Ka4+ Kd6 Qh4 Na3 b1B c4 b2 c5 Kb4 Nc2+ Kc3 c6 Qg5 Ke6 Qh6 Re8 Rd5 Re7 Rb8 Re8 Rdd8 Qa4 Rf1 Rf8 d1Q Bh1 Qdd2 Nb4+ Bc2 Ke7 b1Q Na6 Kb2 Qf2 Bd3 Rc3 Bg4 Qfd4 Qbc1 Nh4 Rf5 Be4 Qg1 Rf1 Qf2 Rg1 Qf1 Rh1 Ng1 Nf3 Bh5 Ne1 Bhe2 Nf3 Nf7 Ne5 Ng5 Rh2 N5f3 Rh4 Qf2 Rh1 Qf1 Rb3+
3qb3/3Br1R1/1p1nN1R1/6Kb/nQP1N2Q/nPb2qp1/1r1kP3/2rB1QB1 b - - 0 1 legal: proof: g4 c5 d4 cxd4 f4 e5 Nc3 exf4 Nb5 h5 Nxa7 Nc6 gxh5 Nb8 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 c4+ Ke4 h4 g5 a4 f5+ Kh3 d5 a5 d3 a6 g4+ Kg2 d4 h6 g3 Kh3 f3 h5 f2 h7 b6 h6 d2 Qb3 d1N Ra5 d3 Nb5 d2 a7 f4+ Kg2 Nc3 Nd4 Ke3 Nh3 Na6 Rg5 Bb4 Rg6 Bg4 Ng5 Nf6 Ne4 Ne8 Ne6 Bh5 Kh3 f3 Qa3 Nc5 b3 Nd6 Qa5 Re8 h8Q Ncb5 h7 Re7 Kh4 Bc3 Qb4 Na4 Kg5 Na3 Bh3 f1Q Qf8 f2 h8Q Qg2 Rg7 Be8 Qh4 f1R Qf5 Re1 Qf1 Qf3 Bb2 d1B Ba1 Rc8 a8B Bc2 Bc6 Bd3 Bf5 Rc1 Bd7 Rc5 Rh2 Rd5 Rf2 Bc2 Bb2 Rd2 Bh7 Qh1 Rf6 Qf3 Bf5 Bb1 Ba1 Rb2 Rfg6 Bd2 N4c5 Bc3 Bc2 Kd2 Bd1 Bf5 Ne4+ Ke3 Bc6 Bg4 Bd7 Bh5 Nf6 Bd2 Nf4 Ra2 Ne4 Rac2 Bf6 Rb2 Ne6 Bc3 Nf2 Rcc2 Bd4+ Kd2 Ne4+ Kc1 Nf6 Kd2 Bg1 Rc1 Ne4+
1qB2r1B/q4Nb1/P2Q1P1R/bbB1r2n/3nP1Q1/1pRr4/1p1kR3/1K2Nn2 b - - 0 1 illegal: No proof kernel
q1rqr1b1/q3nn2/p1N2KP1/b1QN1QBb/k3B1R1/2p5/R1P2B1P/2Q2n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e6 d4 e5 Qd3 Rh7 Qg3 Rh8 dxe5 gxf4 g5 Nc6 Qh3 Nb8 Qg4 hxg4 Kf2 f5 e4 d5 b4 Kd7 g6 c5 e6+ Kd6 b6 Kc6 b7 f3 Ke3 f2 Kf4 a6 Ke5 f4 e7 c4 e8Q+ Kb6 b5 g3 Qf7 f3 Nc3 d4 Nge2 g2 Nd5+ Kc5 b6 Kb5 Rg1 d3 Bg5 c3 Qf5 d2 Ra2 d1B Rb2+ Bb4 Nd4+ Ka4 Bd3 f1Q Nc6 Ne7 Kf6 f2 e5 Bf3 e6 Bh5 Be4 Qa1 Kf7 Nd7 b8B f1N b7 Qb1 Ba7 Re8 b8Q Ba5 Qd6 Ne5+ Kf6 Nf7 Bf2 Bd7 Qc5 Rc8 Qf4 Qa2 Qc1 Qb3 Qd6 Qb7 Qc5 Nf5+ e7 Be6 Nc7 Ba2 Nd5 Qa8 Ke6 Rf8 e8Q Ne7 Qd7 Re8 Kf6 Bb3 Rh1 g1Q Qf5 Qg3 Rg1 Qgb8 Rg3 Qba7 Rg4 Nh6 Nf4 Bg8 Nd5 Nf7 Ra2#
1Q1b1Q2/B6P/8/r3nn1K/1qRP1rN1/1N1Bpq1P/p1Nrbn1k/1q2BR2 b - - 0 1 legal: proof: e4 b5 c4 f5 g4 fxe4 a4 d5 axb5 h5 gxh5 dxc4 Ke2 Kd7 f4 Ke6 d4 Kf5 b4 Kg4 f5 a5 h6 e5 f6 c5 h7 g5 h3+ Kg3 f7 g4 b6 c3 b5 c2 b7 e3 b6 a4 Nc3 a3 Qd2 e4 Na4 c4 Qa5 c3 Qg5 a2 Qe7 Nh6 Qe6 Ra5 Rh2 Nd7 b8N Be7 f8B Nf5 b7 Ne5 Bb2 c1Q Ba3 c2 Qf7 Qb1 Nc6 Qd5 b8Q Bd8 Bfb4 Rf8 Nc5 c1R Rf2 Rd1 Be1 Qb4 Rc1 Ba6+ Rc4 Rd3 Rf4+ Kh2 Nb3 g3 Qg7 g2 Nf3+ Kh1 Qe7 g1Q Nh2 Rd1 Ng4 Rf6 Nh6 Kh2 Qf8 Qf7 Na1 Qfb7 Nc2 Qg4+ Rf3 Qb1 Bc5 Q7b4 Ba7 Qh5 Bg2 Rd2+ Kf1 e2+ Kf2 Bb7 Nf7 Ng3 Nh6 Ra4 Na5 Rf4 Nb3 Ra5 Bf1 Bc8 Ke3 Bg4 Bf2 e1N Be2 N1d3 Be1 Ra3 Rf1 Nf2 Bd3 Ra5 Ng8 Be2 Nf6 Qg4 Nh5 Rf7 Nf6 Qh5 Kf4 Qf3+ Kg5 e3 Qc5 Rg7+ Kh6 Rg4 Qf8 Nf5+ Kh5 Rf4+ Ng4+
B1K1R2R/1B2r2P/2nb2Nq/1b1p4/2n1qp2/1PB1Q1b1/kPnqQrN1/2N5 b - - 0 1 legal: proof: f4 b5 g4 c5 d4 cxd4 f5 h5 gxh5 b4 f6 b3 axb3 exf6 Bh3 f5 Bf1 f4 Kd2 Ke7 Kd3 Kd6 Kc4 g5 Kb5 Kd5 c4+ Ke4 h4 f5 h6 d5 e3 a5 c5 a4 c6 d3 h7 d2 h5 a3 c7 g4 Kb6 a2 h6 g3 Nh3 g2 Ng1 f3 Na3 f4 Nh3 g1B Be2 f2 Ba6 f1Q Nc4 Kd3 Bb7 Bf2 Qe2+ Kc2 Rh2 Ra3 Ba8 Bg3 e4 Qf3 e5 Ra7 e6 Qe4 e7 Ba6 e8Q Qg5 c8B Bd6 Bcb7 Bb5 Nf2 Nc6 Nd3 Nf6 Rh5 Rg8 h8N Ng4 Ng6 Ne3 h7 Qh6 Re5 Rg7 Qe6 Rc7 Qh3 Rg7 Re8 Re7 Rh8 Re5 Rb1 a1N Qe6 Rh5 Qe8 Rh2 Qe5 Ba3 Kc7 Rf2 Kc8 Bd6 Qe8 Ng4 Qe3 d1Q Bd2 Nge5 Bc3 Qe2 Re1 Qd2 Re2 Kb1 Re1+ Ka2 Qe2 Qg7 Ne3 Nc4 Ng2 Qh6 Qe5 Qd4 Q5e3 Nc2 Rh1 Qe5 Rh5 Qe4 Re5 Ka1 Ree8 Ka2 Ba6 Rd7 B6b7 Re7 Nc1+
1RQNb3/B3KRP1/rn1pn2n/1b2PB1P/qr1p1qk1/b7/1Q3Q1R/qN6 b - - 0 1 illegal: No proof kernel
qqBknQ2/r1R2p2/b2rrP2/3P4/BN1BPp2/2Q1b3/1n1n2KN/3b1RN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 Qe7 f5 Qd7 Qa4 Qd8 Qf4 exf4 Kf2 a5 b4 c5 d4 h5 e4 a4 g4 a3 d6 c4 d5 a2 g5 c3 g6 c2 b6 h3 b5 h4 g7 h2 b7 h3 b6 Nd7 b8N Rh6 b7 Ngf6 g8B Nb6 Bh7 Na4 Bb2 c1N Bd4 Nb3 Na6 Nd2 b8Q Nb2 Nb4 Ba6 Qc8 Ra7 Qc3 Qb8 d7+ Kd8 Bb5 Ne8 Ba4 Re6 f6 Bc5 Bf5 Bb6 Nf3 Qa8 Re1 h1Q Rc1 h2 Rc2 Qc1 Ng1 h1B Bh3 Bf3 Bg4 Ndc4 Nd2 Bd1 Nf1 Qb1 Nh2 Nd2 Kg2 Bc5 Be5 Be3 Bd4 Rd6 Rc1 Qd3 Rc2 Qb5 Rac1 a1R Bh3 Bg4 Rf1 Bd1 Bf5 Qbb8 Bg4 Rc7 Rc1 Rcc6 Be6 Kc7 d8Q+ Kb7 Qe7+ Rd7 Qc2 Kc7 Qcc5 Bb5 Bc2 Ra7 Ba4 Ba6 Qf8 Kd8 Bh3 Re7 Bc8 Ree6 Qc4 Rb6 Qd3 Rbd6 Rc7 Rb6 Qa3 Rbd6 Qc3
B1QN1K2/1bb1rp1N/R2P3n/B1P5/bqn3BP/r1qk3p/2rq4/1R1NQ3 b - - 0 1 illegal: No proof kernel
1Bqbb3/1q1P1P2/1n1R1b2/NK1NrBp1/R4NRq/1p1Q3r/1Q1P1kn1/1n6 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 f4 g5 a4 e5 h5 c5 h6 b5+ Kb3 g3 a5 g2 a6 Qd7 d6 Be7 h7 Nh6 a7 Qb7 f6 Nf5 f7 Nd7 f8Q Bf6 Rh6 Ne3 f5 Nb6 Qg7 Bd7 Na3 Rae8 Ne2 Kf3 a8N g1B Bh3 e4 Nc7 Kf2 Qc2 Re5 Nf4 Ng2 Nc4 e3 Na5 e2 Ra4 e1Q Ba3 Be8 d7 Qee4 Ncd5 c4+ Kb2 c3+ Kb3 Qd4 Qd3 c2 Rh4 c1Q Rg4 Bd8 f6 Qcc8 f7 Qe4 Rh4 Qd4 Bf5 Qe4 Rg4 Bh2 Kb2 b3 Bd6 b4 Bb8 Bg1 Ka1 b2+ Ka2 b3+ Ka3 Qe1 Kb4 b1N Kb5 Bh2 Qf8 Qh1 Qa3 Bg1 Qb2 Qh4 Be6 Ke1 Bf5 Bd4 Kb4 Kf2 Kb5 Rg8 h8R Rg7 Qbc3 Rh7 Qb2 Qh6 Qa1 Re2 Rf8 Bg7 Qa2 Re5 Rh8 Qh3 Qb2 Qg3 Ra3 Rh3 Rh6 Qh4 Rd6 Bgf6 Ra4
1r2n1N1/q2PP1Q1/1B2k3/1Rq1qNR1/4Bp2/2R1r1r1/2np1KPQ/b3Bb1b b - - 0 1 illegal: No proof kernel
2r2B2/2kPPN1b/2r2bQR/pN3BR1/Qb4B1/nq4nK/1q4pP/r1N2n2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Kd7 Kg3 f5 d4 g5 b4 c5 e4 c3 d5 c4 b6 c2 b5 c3 b7 Nc6 b8Q Nb4 d6 Nf6 Be2 Qb6 Ba3 c1Q Qa4 c2 Nc3 Qb2 e6+ Kd8 e5 c1R Qb7 Nc2 Qba6 f4+ Kg2 g3 d7 g4 e7+ Kc7 e8B Nh5 e6 Bb4 Bg6 Bb7+ Bf3 Bc6 Nge2 Rhc8 Rg1 Be4 Bf5 Qb7 Ra2 Qd5 Ra1 Qdb3 Ra2 Ra1 Nc1 Bd3 Be2 Rab8 Bd1 Rb6 Be2 Rc6 b6+ Kb8 b7 Kc7 b8N f3+ Kf1 f2 Kg2 f1N Bd1 Ba5 Bf8 Bb4 e7 Na3+ Be2 Rh6 Qg6 a5 Nc6 Bb1 Nd8 Bd3 Qg8 Rc6 Nf7 Bb1 Qg6 Bd3 Kh1 Be4+ Rg2 Bb1 Rf2 g2+ Kg1 Nhg3 Nb5+ Kb6 Rf3 Be4 Kf2 g1B+ Kg2 Bd3 Rf4 Bd4 Re4 Bf6 Re6 Ne4 Rd6 g3 Kh3 g2 Beg4 Neg3 Re6 Qd4 Rae2 Qdb2 R2e5 Be2 Bc2 Bd3 Rh5 Bf5 Rh6 Kb7 Re5 Bd3 Rg5 Bf5 Qg8 Bh7 Qg6 Kb8 Bcf5 Kb7 Na7 Kc7 Nb5+
1b1Q2BQ/r1PR2BK/q1n1rq2/1b1b2p1/4r3/1k1B1PnP/2N2p1n/1R1NQ3 b - - 0 1 illegal: No proof kernel
3K2Q1/2P1Qrqr/2pbbRn1/1NP3N1/1P5r/QBR1n3/B1p2R2/2qn1q1k b - - 0 1 illegal: No proof kernel
B1bN3k/rnPRp1q1/pn1QP3/5P1K/1Qr5/2b2r1R/2b1RNNn/q6B b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f6 axb5 Nc6 d4 cxd4 e5 Bb7 e6 Bc8 Bf4 Nb8 Be5 fxe5 Ke2 d5 Kf3 h5 g4 a6 c4 d3 b4 h4 g6 h3 c5 d2 b6 h2 g5 e4+ Kg4 e3 f4 e2 g7 e1R b7 d4 g6 d3 b5 Re3 c6 Qd5 c7 Re1 b6 Qb5 Nc3 Re3 Nce2 Nc6 b8N Qe5 b7 Rf3 Ra2 Ra7 Nh3 Na5 Nf2 Nh6+ Kh4 Qc3 g8B Bg7 Bg2 Kf8 Kh5 Ng4+ Bh7 Be5 Rc2 Kg7 Nc6 Qd4 b8Q Nb7 Ra2 Qa1 Rb2 Bc3 Nd8 Rg8 Ra2 Kh8 Rb2 Nc5 Qb4 Nb7 Qda4 d1Q Qd7 d2 Qdd6 Ne3 Ra2 Nd5 Rb2 Qdb1 Rd1 Nb6 Bh1 Kg7 Rb3 Qbb2 Re1 d1B Ra3 Kf6 g7 Bc2 Be4 Rf8 g8R Rf7 Rf8 Kg7 Rd1 Rf6 Rf7+ Kh8 f5 Rg6 Nf4 Rg4 Ng2 Rgf4 Bc6 Rc4 Ra5 Bd2 Ra3 Qg7 Re3 Be1 Re2 Bc3 Nh4 Na5 Ba8 Nb7 Bg2 h1N Rf6 Qh7+ Rh6 Ng3+ Kg5 Rd4 Qc6 Qb1 Bh1 Qa1 Ng2 Nf1 Rh3 Rc4 Rd7 Nh2 Qcd6 Qf1 Rg3 Qg7+ Kh5 Qa1 Rh3
1r5k/1qPP2pN/Br2PRq1/1nK2N1B/2b2b1q/p2r4/1B2QR2/nn1NQ3 b - - 0 1 illegal: No proof kernel
1N1QN2R/rP3Pn1/R1B1np2/Qr2R3/4nk2/1Pq3BK/pr1qbbQ1/1b6 b - - 0 1 illegal: No possible last move, all moves rejected
1b2q3/p2r2rR/3P4/RNb2kPn/3n1r2/BbQKP2Q/2pnBNQ1/2q2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Kd7 Kd2 Ke6 b4 h5 g4 c5 b6 f5 g6 f3 b7 f4 b5 c3+ Kd3 c2 b6 h4 g5 f2 d5+ Kf5 g7 f3 Nc3 h3 Nb1 h2 Qe1 c4+ Kd2 c3+ Ke3 Rh7 Nh3 Nf6 g8B Rg7 Nf4 Nh5 Nd3 Nc6 b8Q Be6 b7 Nd4 Na3 Bc5 Qc8 Qe8 b8Q Rd7 Bb2 c1B+ Qd2 c2 Qb4 Rb8 Qc3 Rbb7 Nb5 Rg7 Ra4 Rbd7 Ba3 Bb2 Ra5 Bc1 Bg2 f1R Nf2 Bb2 Kd3 Bc1 Qd1 Bf4 e3 Bb8 d6 Bd5 Qdd2 Bb3 Ng4 f2 Bc4 Rg1 Qe2 f1N Nf2 Nd2 Bf1 Rg4 Qf3+ Rf4 Qg2 Rh4 Bd5 Rf4 Bf3 Qf7 Qh8 Qe7 B3e2 Qe8 Rg1 h1Q Qh6 Qh2 Rh1 Qg1 Rh2 Ng3 Qh4 Nh5 Qhh3+ Rg4 Qhg3 Nf6 Rh7 Nh5 Q2h3 Qh1 Bg2 Qb1 Bgf1 Qc1 Qhg2 Rf4 Q3h3+
bN4rQ/p2R2PP/2q1qBn1/3B1p1q/2B2b2/K2n1r1N/P1R5/b2kQ1Qn b - - 0 1 illegal: No possible last move, all moves rejected
B6b/k4n1R/1b1r4/QnP1pRNQ/BP3pq1/2P2n2/4nBNr/n1Qb1K2 b - - 0 1 illegal: No possible last move
qNn2R2/4B2b/n1n4P/3Rp1Nb/Q2P1P1p/kn1Q4/1r5Q/rB1nK1bN b - - 0 1 illegal: No possible last move
1QK5/2bQ3B/3QRP1R/1P2BNbp/3p2r1/nPN1B3/2bqnn1b/4kr1b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 g4 a5 f4 d5 c4 h5 f6 h3 f7 h2 b3 a4 g5 d3 g6 d2 f5 Ke3 g7 Kf2 f6 a3 Bb2 a2 Bg2 Nh6 g8Q Nf5 Qh7 Bh6 f8B e5 Ba3 e4 Be7 e3 Bf8 e2 Be4 e1B Qb7 Nc6 Ne2 Nfd4 Rg1 h1B Qd7 Ne5 Kd6 Bg5 c5 Rg8 Ng3 Ne2 c6 Nc4+ Ke6 Bb7 Bb2 Na3 c7 Ra4 Bd3 Rg4 Nc3 Ba8 Rc1 a1B c8Q Be4 Bb1 Bc2 Bh6 Re8+ Kd6 Ree4 Nf5 Ref4 Qb8 Bb7 Na4 Qa5 Be5 d4 Nc3 Bh1 Qdd8 Bb2 Kd7 Qb4 Kc8 Rf3 Na4 Bc3 Qdd6 Qa5 Rg3 Bb4 Nc3 Rff4 Qa6 Bd6 Re3 Bc7 Qd6 Bd3 Qc2 d1N Qa2 Bc2 Qd7 Nc4 Qa3 Rf3 Qc5 Na3 Qcd6 Kf1 Re4 Nf2 Rd1 Qb4 Rd3 Rff4 Rg3 Bd2 Ree3 Ke1 Re4 Rf3 Rg2 Bgf4 Bg5 Bh2 Be3 Nd3 Rg3 Rf1 Rg1 Nf2 Rg3 Rh4 Rg6 Rg4 Rh6 Nd1 Bg1 Bg5 Be3 Nf2 Bg3 Qc4 Re6 Qd3 Be5 Qd2 Ng3 Bd1 Bh7 Bc2 Nf5
n3n1R1/B1nn4/1b2P2N/kp1Bb1pK/3N1PP1/qR2r1B1/1r2bN1n/6QQ b - - 0 1 illegal: No proof kernel
2bB3r/r1r1rnb1/qbP3r1/R2BR2P/1R1N1K2/Pp2BpN1/1knQ4/5Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 c4 Ke6 h4 d5 e4 g5 c5 b5 h6 f5 h5 f4 c6 b3 a3 g4 h7 d3 Qe2 b2 Nh3 f3 Ke3 b4 Nf2 d4+ Kf4 d2 Rh3 d1R Qa6 d3 Qa5 g3 Nd2 b1R Nh1 g2 Rh4 g1B Nb3 d2 Ng3 Bg7 Bc4+ Qd5 Rg4 Re1 Rg5 d1R Be3 Ra7 Qb5 Rb2 Rb1 Nh6 Qa6 Rg2 Nd4+ Kf7 e6+ Kf6 e7 Qa5 e8R Nf7 Qb5 Na6 Bd5 Rd3 Ree5 b3 Rd1 Rdd2 Qf1 Nb4 Rc1 Qb6 Rc4 Nc2 Ra4 Qa6 Rb4 Re8 h8B Ree7 Bc4 Rec7 Ra5 Rdd1 Rge5 Rd3 Nh1 Rg6 Bd5 Rc3 Ng3 Rc5 Qd3 Rb5 Qd2 Rb6 Rg5 Rb8 e5+ Ke7 e6 Kd6 e7 Bf2 Raa4 Kc5 e8Q Rba8 Qe6 Bg1 Qh3 Rb8 Bf2 Ree7 Qf1 Bf6 Rb7 Bd7 Nge2 Re3 Nb5 Bg4 Bg7 Rh8 Ng3 Bc8 Ra5 Bc3 Bf6 Bb2 Bd8 Bg7 Be1 Ree7 Re5 Bd4 Qdg2 Bg1 Bd2 Bf2 Nc3+ Kd4 Nce2+ Kd3 Rb4 Bd4 Be3 Bb6 Nd4+ Kc3 Qge2 Kb2 Qd2
3n1b2/2q1b1R1/2PQ1Rr1/P1K3k1/PBN3r1/2p1r2Q/np1r1N1Q/r3Bb1B b - - 0 1 illegal: No proof kernel
8/QB5R/2P2Pbp/2nrnk1P/4Q2r/1bN2p1b/2qR1KnQ/BbB1Nb2 b - - 0 1 illegal: No proof kernel
1k2qB1R/2bQR2r/pr1N2B1/1B4b1/1Q2b3/P2p1N1n/b1Pb1P2/K1n1Q2r b - - 0 1 legal: proof: e4 c5 d4 e5 g4 f5 dxe5 fxe4 b4 h5 bxc5 hxg4 Kd2 d5 Kc3 Kd7 Kb2 Kc7 h4 g5 c6 b5 e6 a6 h5 d4 e7 e3 e8B g3 a3 b4 h6 g2 h7 d3 Rh4 e2 Bd7 e1B Nf3 g1B Rh5 g4 Be2 b3 Bf5 g3 Rh4 g2 Nfd2 Bb7 Ra2 Nh6 Rh1 Nd7 Rh2 Kb8 Ka1 Nf7 Bf3 Bh6 Nc4 Bed2 Bg6 Ng5 Rb2 Qe8 Nd6 Nh3 Qe1 Nc5 Rh1 Bdg5 Nd2 Bh2 Bfh5 g1R Nf3 Bg3 Bg4 Bd2 Bd7 Bhg5 Rh2 Rh1 c7+ Ka7 c8Q Be4 Bb5 Rb8 Qg4 Rb6 Qd7+ Kb8 Rb1 Be5+ Bb2 Bg3 Bg7 B3f4 Bf8 b2+ Ka2 Bg3 Rd1 b1B+ Ka1 Ba2 Rb1 Rg8 h8Q Rg7 Qh4 Rh7 Rb4 Be5+ Rd4 Bef4 Rd5 Bg3 Re5 B3f4 Re7 Nb3+ Kb2 Nc1 Ka1 Bg3 Qhg4 Ba8 Qb4 Be4 Nc4 Bc7 Nd6 Ng1 Rh6 Nh3 Rh4 Rg7 Rh8 Rf7 Qc6 Rh7 Qd7
1n1rBQBN/k1b4p/5QrR/BrP1Rq2/3Nb1bP/3p1PRn/8/Kb1b4 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Na3 exf4 Nb1 f3 e3 f5 Qd2 f4 Ra3 Qf6 Qd1 f2+ Kd2 f3 Bd3 f1B Ra4 f2 Ra1 Qf3 gxf3 Kf7 Na3 Ke7 Nb1 Ke8 b4 Kd8 h4 Kc7 c4 Kb7 Kc2 g5 Kb2 d5 b6 a5 b5 g4 c5 a4 e4 g3 e5 g2 e6 Ne7 Na3 Ra5 Bd2 Ng6 e7 Nf4 e8B Nh3 Bc4 d3 Nc2 d4 Bg8 Bg4 Ne2 g1R Nf4 Bd6 Ng6 a3+ Kb1 Rg3 Rg1 a2+ Kb2 Ka8 b7+ Ka7 Qe2 Rg2 Qe6 Bc7 Re1 Rg3 Bb4 d2 Qf6 d1B Ka1 Bd3 Re5 f1B Bc3 Be4 b6+ Ka6 Bd2 Rb5 Ba5 Bc4 Rg2 d3 Nd4 Bcb3 Rg1 Bbc2 Rg2 Bb1 Rg1 Nd7 b8Q Rg2 Qbd8 Nb8 b7+ Ka7 Qf8 Rg3 Qdf6 Rg2 Bgf7 Rg8 Nh8 Rg6 Bb3 Rb2 Bg8 R2b4 Nf5 Rd4 Rg3 Rd8 Nd4 Nf4 Qg5 Re6 Rf5 Na6 b8R Nh3 Rb6 Nb8 Qf4 Rf6 Re6 Rh6 Rh5 Rf6 Rh6 Rg6 Q4f6 Bdc2 Nb3 Bd1 Kb2 a1Q+ Kc1 Qa2 Nd4 Qd5 Re7 Bb3 Kb2 Qf5 Ka1 Bd1 Re5
6Qn/2QNN1P1/N2P4/1RKB2np/br5p/b3BQ2/P1kr1rqR/2nn3n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 Kf6 Kd4 c5+ Kc4 Ke5 g4 Ke4 d4 b5+ Kb3 e5 f4 h5 d6 c4+ Kc2 c3 Kb3 c2 d5 Na6 f6 Nh6 d7 Nc5+ Kb2 b3 Kc3 b2 Kb4 Nf7 Be3 c1N Na3 b1N g5 Nc3 Qg4 Nd1 Ne2 Kd3 f5 e4 g6 Bb7 g7 Bc6 Bg2 Ne6+ Bc5 e3 Rh2 Rb8 Nc3 e2 Rb1 e1N Nc2 Neg5 Qf3+ Kd2 Rb3 Rh6 Rb1 Nh8 f7 Rd6 f6 Qe8 d8Q Qe2 Bh1 Qg2 Be3+ Kd3 Kc5 b4 Rb2 b3 Qc7 Ba4 Rb1 Be7 f8N b2 f7 Rb4 Nd7 Rf4 f8Q Rf5 Ra1 b1R Qg8 Rb4 Rb1 Rff4 Qg3 Rf2 Qf3 Rg4 Rb5 Rb4 Ne4 Bf8 Nd4 Be7 Nc6 Kc2 Kb6 Ned3 Nec5 Rf6 Na6 Rd2 Bf2 Bd6 Be3 N3f2 Ne7+ Rc4 Nc6 Ba3 d6 Rb4 Kc5 Qg1 Bg2 Nh1 Ne7 Rff4 Qfc6 Rff2 Bd5 Qg2 Qca8 Rde2 Qaf8 Rd2 Qf3
RrQ5/3BB1p1/1Nb1b2b/2Q2Q1q/rnPP1n1k/b3RP2/1b1K2p1/2r1NB2 b - - 0 1 illegal: No proof kernel
nrR1R1NQ/bbB1pb2/n5r1/kB2K3/p1P5/3QPP1q/3n4/Bnn2N1R b - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h4 f5 hxg5 fxg4 Kd2 h5 Kd3 a5 Ke4 d5+ Kf4 Kd7 c4 Kc7 b4 Kb6 g6 a4 e3 g3 g7 d3 Qe2 d2 Qf3 d1B Ra3 d4 Rb3 g2 Rc3 h4 Qd5 h3 Ke5 d3 Rb3 d2 Ba3 h2 Bb2 Na6 Nc3 Bh5 f3 d1N Ba1 Rh6 Nge2 g1N Qd3 Rg6 Bh3 Bb7 Ng3 Ne2 Bd7 Qc8 Nce4 Ndc3 Nf1 Rb8 Nf6 Nb1 Be8 Qh3 Bc6 Nh6 g8R Bg7 Re8 Nf5 Rb2 Nd6 Rb3 Bh6 Ng8 Nc1 Rc8 Ne8 Rb2 Nec7 Be8 Ka7 b6+ Ka8 b5 Bf4+ Kd4 Bd6 Bd7 Bc5+ Ke5 Bc6 b7+ Ka7 Rb4 Kb6 Be8 Ka5 b6 Bd5 Bb5 Na8 Rb3 Rh6 Rb2 Bhf7 Rd2 Rg6 Re8 Rc8 b8B Bb7 Bd6 Rb8 Rb2 Be4 b7 Ba7 Rg2 Bc6 Rg4 Bcd5 Rh4 Be4 Rh8 Bc6 Rg1 h1N Rc8 Ng3 Rh1 Ne4 Re8 Rc8 b8Q Ned2 Nh6 Rg2 Reg8 Rc7 Qf8 Rg3 Qg7 Rg4 Rc8 Rg6 Rhe8 Rb7 Qh8 Rb8 Ng8 Bb7 Bc7+
b1B1r3/Q1rPBr2/P1r2PQk/1K2N3/1Q1Rb1p1/pq1N1n2/3r1b2/1nN1R3 b - - 0 1 illegal: No proof kernel
QR1Q1R1B/1P1rNrbr/1PKB4/1NQB2n1/3b2p1/3r4/3p2Pn/rk2q1n1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 h3 Ba6 d5 g5 d6 cxd6 h4 d5 h5 d4 axb5 Bb7 Qd3 Bd5 Qd2 Bf7 Qd1 Bg6 hxg6 Qc8 Nh3 Qc7 Ng1 Qd8 Kd2 e5 c4 Ke7 b4 Ke6 f4 Kf5 g7 d5 c5 a5 b6 h5 c6 h4 b7 a4 c7 h3 c8Q+ Nd7 b5 e3+ Kd3 e2 b6 e1N+ Kd2 Ke4 f5 d3 Kc3 d4+ Kc4 d2 Kb5 h2 f6 g4 f7 a3 Bc4 a2 Qc2+ d3 Ba3 d1R Kc6 Rh7 Be7 Nh6 g8Q Nf3 Qa4 Bg7 f8B Qe8 Kc7 Nf7 Qa5 N7g5 Qb4 Ra3 Nh3 Ng1 Bd8 d2 Qe6 Rd3 Bd6 Rf1 Na3 Rf7 Rf1 a1B Ba2+ Bd4 Qf5+ Ke3 Qc4 e4 Qa8 Ne5+ Qd7 Nef3 Kc6 Ke2 Qb4 e3 Qc5 Qe5 Rf2+ Kd1 Bf6 e2 Qdd8 e1R Bd5 Rd7 Nf4 Rf1 Ng6 Qe1 Qb5 Kc1 Qc5+ Kb2 Nb5 Kb1 Ne7 Ne2 Rg1 h1R Bfe5 Nh2 Rf8 Rff3 Rf1 Rf7 Rf6 Ng1 Re6 Bh6 Bh8 Bhg7 Rg6 Bge5 Rgg8 Bf6 Qdb8 Bg7 Qd8 Qf2 Be5 N1h3 Qdc8 Kb2 Re8 Ra1 Rgf8 Qe1 Bd6 Kb1 Qc7 Ng1 Rb8 Bf2 Qc8 Bfd4 Qd8
rkR1B3/bP3KRr/Pp1rr3/1q2Bb2/7P/Q2Nn3/1pNn4/rQQN1b2 b - - 0 1 illegal: No proof kernel
1bb3Q1/1p1kB3/1N1B1P1r/1B4nN/4p1qn/1Q1bKbbP/nR1r1PR1/7N b - - 0 1 illegal: No possible last move
K5R1/P2B2Nr/RB2p3/rq2N1n1/b5r1/b1RrB1Q1/p1r1P1P1/3k1nQn b - - 0 1 illegal: No proof kernel forced: bxLB
Br1N4/P1N5/1P1Rn1Q1/P1N2n2/1B1QrQ2/nR1bbpb1/p2nq3/2K1n1k1 b - - 0 1 illegal: No proof kernel
rN1R1qn1/P1bB2BR/p1P5/3Q1bNP/4bprk/n1K3B1/Q3Nb2/r4b2 b - - 0 1 illegal: No proof kernel
1B1Q1n2/ppQ3Bb/r1P2b2/b1rNq2r/3N4/QK1kP3/P2rnRR1/2R3r1 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Na3 h4 Nb1 h3 Bg2 hxg2 Kd2 Ke7 Kc3 Ke6 h4 Kf5 f4 Ke4 h5 d5 h6 g5 h7 d4+ Kb3 g3 c4 g4 e6 d3 c6 d2 c5 Be7 c7 Nc6 f5 Nd4+ Kc3 Qd5 f6 Qe5 f7 Nf6 f8R Nd7 Rf2 Nf8 Nf3 g1B Qb3 d1R Qa3 g2 Bf4 g3 Rh2 Bf6 e7 Bf5 c8Q Rd2 Qc7 Rc8 e8Q Bg6 Qee7 Bf5 Qcd8 Rc6 Qec7 Ra6 c6 Bg6 Rh4 Bh2 e3 g1R Rg2 Ne2+ Kb3 Rc1 Nd4 Rc5 Nc3+ Kd3 Rc1 Bf5 Rf2 g2 Nd5 g1R Rg2 Bg3 Rhh2 Be1 Bg3 Rdc2 Rf2 Ba5 Rhg2 Rd2 Bf4 Rg8 h8B Bh7 Bh2 Rg5 Bg7 Rh5 Qcc8 Qe7 Bb8 Qe5 Qcc7
2rRn2K/n3N3/8/3rr1pN/Nb1nb1b1/P1RB1q1P/2pPbB1k/Q2R2Q1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Ke4 Kg5 f4+ Kh4 h3 Kg3 f6 g5 d6 c5 f7 b5 f5 c4 d7 c3 a3 b3 f6 b4 Kf5 b2 Kg6 e4 Bg2 e3 Nf3 b3 Qg1 e2 Ne1 Bb4 Kg7 Ra5 f8R Nc6 f7 Na7 Nc2 e1R Nd4 Nf6 Nc6 Rd5 Ne7 Ree5 Re8 Qb6 f8Q Qf2 d8N Qf3 Ne6 Ba6 Rd8 Be2 Nf4 Ne8+ Kg6 Rg8+ Qg7 Rf8 Kh7 Rg8 Qe3 Rf8 Rd1 Kh2 Nh5 g3 Bf1 g2 Qf6 g1N Qd4 Bb5 Bc4 Ne2 Bd3 Bd7 Qe3 Bg4 Ra2 Nd4 Qg7 Rf6 Kh8 Rc6 Qe1 Rc8 Qf1 c2 Nc3 b1B Na4 b2 Ra1 Ba2 Rb1 Rd7 Qf6 Bd5 Qb6 Be4 Qc5 Rdd5 Qc3 Qg3 Qe1 Kg2 Qg1+ Kf3 Ra1 b1B Bb2 Ba2 Rab1 Bc4 Bf1+ Bcd3 Ba1 Ne6 Rb3 Qg2 Qb2 Qf2 Qc1 Qe3 Bd4 Qf2 Be3 Nd4 Qa1 Qg2 Nf4 Kg3 Rc3 Bb5 Qf2+ Kh2 Nh5 Bc4 Qe1 Qf3 Bf2 Bb3 Bb5 Bc4 Qf1 Be2 Bd3 Ra8 Qe1 Rc8 Qg1+
6r1/n2NB1q1/3BR1n1/Rrbnrp1P/k1P2Q1N/5b1Q/B1PN1p1b/2n2K2 b - - 0 1 illegal: No possible last move, all moves rejected
n3N1b1/1K1Qq1Q1/3Pn2p/2P3n1/1bp2R2/nBPRR1N1/1kNr1r2/5rbB b - - 0 1 illegal: No proof kernel
K1R3B1/b2n1NP1/2N2Qn1/3prp1r/b1PBq3/Q1r2k2/1R1P2rB/n1Q4b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 bxc5 exf4 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Kd5 Kg4 e4+ f3 e5 f5 c6 a5 c7 h5 b6 d6 b7 h3 e6 a4 e7 h4 e8Q a3 Bc4 a2 Nc3 h2 Qe5 h3 Qf6 Ra6 Ne4 Rh7 Ne2 f2 Bb2 f1R Qc1 Re7 Rb1 a1N Ng5 Rf2 Bd4 Re3 Rb2 Nd7 b8B Raa3 Kc6 Re5 Nf7 Rc3 g3 Kf3 g4 Bg7 g5 Rg2 g6 Qe8 Rg1 Bh6 g7 h1R Re1 Ba6 c8Q Bb5+ Kb7 h2 Ka8 Ba4 Qc5 Be3 Qa3 Ne7 Ba2 Ng6 Be6 Rb3 c4 d5 Nh8 Qe7 Bg8 Rc3 Nf7 Rhg1 Bc7 h1B Bb8 Re4 Bh2 Re5 Nf4 Rg5 Ne6 R1g2 Ned8 Rh5 Nc6 Bg1 Qfd6 Qh4 Qf6 Qe4 Qad6 Qc2 Qa3 Re6 Bde5 Ba7 Bd4 Re7 Re5 Qe4 Re6 Ndf8 Rd6 Re5 Rd8 Nd7 Rc8
b4QKB/1N2pNQ1/rn1P4/2n4r/2k3B1/P1R1R1pP/2b2qBr/b1n2rQ1 b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 g5 a3 g3 a6 g2 f5 g4 a7 b4 h3 c6 f6 g3 f7 b3 Bb2 e3 Nf3 g1R Bg2 e2 Ne5 e1R Nc3 Nf6 Rc1 Nbd7 Na4 Nc5 Rc3 Bg7 f8Q Ref1 d3 Bb7 Nf7+ Kd7 Ke5 Qb6 Rh2 Rh1 d6 Rh6 Ba1 b2 d4 b1B d5 Bc2 Qb1 Bh8 Qg7 Rh4 Bf3 Qb2 Rg2 Rh2 Re2 Rh6 Re4 Qa2 Kf5 Rh5+ Kg6 Qb2 Re3 Qd4 Rc3 Qf2 Qc1 Rg8 Bd1 Ba8 Be2 Rb8 Qd1 Rb6 Bg4+ Ne6 Bb2 c5 Qd4 c4 Nc5+ Ke8 Qd1 Nd7 Nb7 Ra6 Qb1 Nb6 Qa1 Rf5 Kh7 Kd7 Kg8 Nc5 Re6 Rh5 Qc1 Kc8 d7+ Kc7 d6+ Kc6 d8Q Kd5 Re5+ Kd4 Ree3+ Kd5 Rb3 c3 Qdf8 Kc4 Ba1 Bg6 Qd1 c2 Rbc3+ Kb5 Qe1 c1N Bb2 Qf6 Qf2 Bc2 Qg1 Qf2 Nbd8 Bb7 a8B Bbe4 Nb7 Bg2 Rcd3 Kc4 Rc3+ Kd5 Rb3 Ncd7 Qh7 Bf6 Nc5+ Kc4 Ba1 Bg5 Bh8 Bf6 Qhg7 Ba1 Rbc3+ Kb5 Ne6 Nc5 Ned8 Bge4 Bd5 Bh1 Bb3 Ba8 Bd5 Bd3 Bg2 Bc2 Rb3+ Kc4 Nb7 Rd1 Rbd3 Rf1 Rc3+
B2b1R1n/3P4/QR4k1/nN1rBq2/bNQ3nn/P1Qrp1K1/Ppr5/N2b4 b - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 g5 h4 gxh4 e5 a4 e6 a3 bxa3 fxe6 Qf3 e5 Qd1 e4 g4 Kf7 d4 b5 f4 h5 Kf2 c5 f5 e5 g5 h3 d6 b4 d7 c4 d5 h4 f6 b3 d6 b2 Bd2 h2 Bh3 c3 Qf1 c2 Qd1 c1R Qf1 e3+ Kg2 e2 Be1 e4 Qf5 e3 Qf1 Be7 Nf3 Ra5 Bg3 Rc2 Nbd2 Nh6 Be5 Kg6 f7 Qf8 d8N Bd7 Nd4 Ba4 N2b3 Rd5 N8c6 Bd8 Nb4 Nc6 Nb5 Na5 d7 Rd3 Be6 h3+ Kg3 e1N Bd5 Ng2 Ba8 Nh4 Rg1 Qc5 f8Q h1B Rg2 Qd5 Qc5 h2 Qc3 Nf7 Re1 Rh5 Na1 Qe4 Rc1 Qf5 Rf2 Nh8 Rd1 Qe6 Rf8 Bf3 Rc1 Bd1 Qe2 Kh7 g6+ Kh6 g7 Qf5 g8Q h1N+ Kh2 Nf2 Kg3 Ng4 Qgc4 Rdd2 Qed3 Kg6 Qd6+ Qf6 Qa6 Rd3 Bf4 Rhd5 Be5 Bf3 Rf1 Bd1 Rf4 Bb6 Rb8 Bd8 Rb6 Qe6 Rf8 Qf6 Bd6 Qf5 Be5+
4r1N1/k2P2K1/Nb2Q3/b1r1P1Pq/p1rn2BR/QnB2N1n/QRb1p3/5r2 b - - 0 1 illegal: No proof kernel
1BK1Bn2/2Qp1R1Q/1p1N1N2/b3bnPr/P2n3q/R6k/4rP1n/N1rbR3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 e4 c4 h4 g4 e3 a4 h3 f6 Kg6 f7 e2 c5 e1B c6 h2 c7 b6 Qb3 d3 Ba3 d2 Nh3 d1R+ Nd2 Bd6 f8R Rc1 Qg3 b3 Bc5 b2 Ba6 b1N Bc4 Nc6 Rf7 Nd4 Ra3 Be5 Bd6 Rh5 Nb3 Ba6 c8N Ba5 Re1 h1N Bb8 Nd2 Na1 Nf1 Nd6 Nh2 Ba2 Qf6 Qc3 Ng3 Qc7 Be2 Bb3 Qg7 Bc2+ Ngf5 Nf4+ Kh7 g6+ Kh6 Bd3 Qh8 g7 Kg5 Bc2 Kh4 g5 Bd1 Be4 Ngh6 g8Q Ng7 Bg6 Nge6 Qg7 Nhf5 Qh7 Rh6 Nh5 Nf8 Nf6 Rh5 Ba7 Re8 Bb8 Bc3 Rg7 Re6 Be8 Kh3 Rf7 Ndf3 Kc4 Ba5+ Kb5 Re7 Ka6 Re6 Nb3 N3d4 Kb7 Bf4 Rf1 Re2 Re1 Be5 Kc8 Qg8 Rg7 Qd5 Re7 Qe4 Rf7 Qh4 Na1+
nNRr4/1bP1PP1n/1RB2RKp/1r2qn2/8/1NB3Qk/3npr1N/Q3b2b b - - 0 1 illegal: No proof kernel
n1Nr2R1/r1pQ1Q2/Q7/Rn1rN3/1k1bP2K/qbpB3P/1Bb3P1/5nBn b - - 0 1 illegal: No proof kernel
3n2n1/BPqnr1B1/rNrn4/2k1p3/R1p1PbbN/2b2Q2/QR1PR3/1B3K2 b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f6 axb5 d4 g5 fxg5 c3 gxh4 cxd4 h3 d5 Bf5 Qc2 Bd7 Qd1 Bc8 e4 Kd7 b4 Kd6 f4 a5 b6 e5 b7 h5 b5 c5 b6 g5 f5 h4 f6 g4 f7 a4 Kf2 g3+ Ke2 a3 Rh2 c4 Qc2 a2 Qb2 g2 Nf3 g1N+ Kf2 Nd7 b8Q+ Qc7 b7 Bh6 Bd3 Rh7 f8B+ Re7 Kf1 Ra6 Re2 h2 Bg7 h1R Nc3 h3 Bb1 h2 Nh4 Kc5 d6 Bf4 Nd5 Rc6 Nb6 Nf3+ Kf2 Rg1 Qc3 Ng5 Qa8 Re1 Bb2 Nf7 Qf3 h1N+ Kg2 Ng3 Bd4+ Kb4 Qa7 Nf5 Be3 Rh1 Bf2 Rh2+ Kf1 Nd8 Qa6 Rg2 Bg1 Rg6 Qa8 Nc5 d7 Nd6 Qa7 Nde6 d8R Nd7 Rf8 Nd8 Rf6 Kb5 Nd5 Ra6 Qa8 Rh6 Ba7 Rc6 Nb6 Kc5 Bd3 Rg6 Rb1 a1B Rb2 Rh6 Bb1 Rg6 Rb3 Bc3 Rb2 Nb8 Rf8 Bg4 Rf6 Nc8 Rd6 Nd7 Rd3 Nd6 Rde3 Ba5 Ra3 Bc3 Ra4 Bh6 Raa2 Nc8 Bb8 Bf4 Nd5 Rb6 Qa6 Rgf6 Ba7 Rc6 Qa4 Nd6 Qb3 Qb8 Ra4 Qc8 Qa2 Qc7 Bb8 Ra6 Nb6 Re8 Ba7 Re6 Rbb4 Re7 Rb2
1q2n1b1/QPRn1b1r/1Q2kBRP/N1n3r1/p1r5/K2Q2P1/1pBr4/2R3bN b - - 0 1 illegal: No proof kernel
8/1pQn2pR/3b1n1N/1rP2kPn/1N1r4/N1RbQrn1/BP3b2/KQ1Bq3 b - - 0 1 legal: proof: f4 h5 d4 e5 fxe5 c5 Be3 cxd4 Bd2 Qe7 Bc1 Qd8 g4 h4 Bf4 Qc7 Bg3 Qd8 Na3 hxg3 Nb5 Rh3 Nxa7 Rh8 Kd2 Ke7 Kc1 Ke6 Kb1 f5 h4 d5 a4 f4 e4 g2 c4 f3 h5 f2 a5 d3 h6 d4 h7 d2 g5 d3 c5 Qc7 a6 Qe7 Ra3 Qf6 Nb5 Qe7 a7 Qe8 Nh3 g1B Be2 f1R Rc3 Bd6 Ka1 Nd7 Na3 Rf2 Qb1 Ngf6 Bd1 Rf3 Nf2 Nh5 Rh3 Rhf8 h8N R8f4 Nf7 Rg4 Nh6 Rh4 Nfg4 Bf2 Nf6 Qe7 Nd5 Rg4 Bc2 d1N Nb4 Ne3 Bd1 d2 Rh1 Nd5 Rh3 Rb8 a8Q Nd5f6 Qa5 Ra8 Qc7 Ra5 Rh2 Rb5 Rh1 Qe8 Rh4 Ke7 e6 Rgf4 e5 Rd4 Bb3 d1N Ba2 Ne3 Rh2 Nf5 Rh3 Qf7 Rh2 Ke8 e7 Nfg3 Qf1 Qe6 Nf5 Kf7 Qb1 Nf4 Rh7 Kg6 Nh6+ Nd3 Nf7 Nf8 e8Q Qe7 e6 Bd7 Qf1 Nf4 Qd1 Bc6 Qh1 Be4 Qb1 Kf5 Nh6+ Ke5 Qg6 Qe8 e7 N4h5 Qc1 Bc2 Qd3 N8d7 Qb1 Qg6 Qd2 Qe4 Qdc1 Qe1 Qe3+ Re4 Bb3 Bd3 Bd1 Ke6 e8B Ke5 Bg6 Ke6 Bf7+ Ke5 Ng8 Kf5 Ba2 Rd4 Nh6+
1R4r1/P3N1n1/QbprR3/RbPrn1Q1/B4p1N/4q1Pb/1k1b4/n2K1NB1 b - - 0 1 legal: proof: d4 g5 b4 e5 dxe5 a5 Ba3 axb4 Bb2 Qe7 Bc1 Qd8 Nf3 g4 Ng1 h5 Bf4 g3 Bc1 h4 fxg3 h3 Bh6 hxg2 Bg5 Ra3 Bc1 Ra8 h4 Ke7 c4 Ke6 a4 d5 e4 f5 a5 b5 h5 b3 a6 b4 a7 d4 h6 c6 h7 f4 Bd3 b2 Qh5 b3 Qg5 Nf6 Nf3 g1B Nfd2 Nbd7 Kd1 Qb6 Ra4 Rg8 h8N Ne8 Nc3 b1N Na2 b2 Bc2 d3 Nb4 Qe3 Nf1 d2 Ra5 Na3 Ba4 b1B Nd5 Ng7 Ne7 Nc2 Nhg6 Na1 Rh8 Bd3 Nh4 Rb8 Bb2 Rb5 Bd4 Rd5 Bb6 Bf2 Bd4 Be1 c5 Bb5 Nef5 Bd6 Ne7 Bc7 Rh6+ Kf7 Rh8 Bb6 e6+ Ke8 e5 Kd8 Ra6 Kc7 Ra5 Kb7 Nef5 Rd6 e7 Rd5 e6 Ne5 e8Q Bd7 e7 Be6 Nh6 Bh3 Qeh5 Rd6 e8R Rd5 Bb3 Rd6 Qe2 Rd5 Ra3 Rd6 Ba4 Ka6 Rb8 Ka5 N6f5 Kb4 Rh6 Rd5 Ra2 Rd6 Re6 Rd5 Rb2+ Ka3 Ne7 Rd6 Rc2 Rd5 Rc3+ Kb2 Ra3+ Qc3 Qeg4 Rd7 Qe2 Bc4 Bb3 Rd6 Bg1 Ba6 Qb5 Qe3 Qa5 Bb5 Qa6 Qd3 Ra5 Qe3 Bc4 Qd4 Ke2 d1R Bd3 Qc3 Bc4 R1d5 Bd3 Qa3 Kd1 Bd2 Bc2 Qe3 Ba4
1q1rN1kb/B2nnn2/4B3/5qBN/Nb3Qpr/2P1pPPQ/nR2R3/2n2K2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 h3 Ba6 d5 g5 d6 cxd6 h4 d5 h5 d4 axb5 Bb7 Qd3 Bd5 Qd2 Bf7 Qd1 Bg6 hxg6 Qc8 Nh3 Qc7 Ng1 Qd8 b4 h5 b6 a5 f3 d5 b7 e5 g7 Kf7 b5 e3 b6 e2 g3 h4 Ra3 e4 Rh2 g4 Bh3 d3 Rf2 a4 Nc3 d4 Bb2 Bb4 Qc1 Nh6 g8N Nd7 Rb3 a3 b8Q a2 b7 a1B Bg2 h3 Qg5 h2 Nf6 h1Q Bf1 Qh5 Qc5 Qf5 Qbc7 Qb8 Nd5 Kg8 Nh3 Nf7 Bc1 Rh4 Qf4 Bb2 Rh2 d2+ Kf2 e1N Nc7 d3 Na4 Be5 Ne8 Bh8 Rb2 d1N+ Kg1 d2 Bc4 Ne3 Re2 d1N Be6 Nd5 Kf1 Ne7 c3 Nd3 Bd2 Nc1 Qf2 Na2 Qg2 Nf2 Qh1 Qbe5 b8B Nd3 Ba7 Qb8 Qh6 Qd8 Nf4 Ndc1 Nh5 Qb6 Qh2 Rd8 Qh3 Qb8 Bf4 e3 Qf6 Qfb5 Bg5 Qc5 Qd4 Qf5 Qf4
4B2R/r1Qr1bq1/1NNn4/1P1n1q2/1P2b1RP/b1pp1k2/RbbQ2QB/6K1 b - - 0 1 illegal: No possible last move, all moves rejected
2nn2rR/N3k1nN/Q2P3q/1q2B2Q/b1R1PR1p/1p2r1nP/b2n2N1/K4B2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 f5 Qb3 f3 Kd1 f2 Kc2 f4 Qf3 Bd6 Qb3 f3 Qa4+ Ke7 Qb3 Bf4 gxf4 Ra4 Kb2 Kf7 Qd1 Ke8 Kc2 Ra8 Kb2 h5 d4 b5 a4 g5 e4 c5 a5 h4 f5 g4 f6 g3 h3 g2 a6 b3 a7 c4 f7+ Ke7 f8N c3+ Ka3 c2 Kb2 b4 Ra4 Nc6 Nh7 Bd7 Ra2 Qa5 Be2 f1N Nc3 f2 Nb5 Nd2 Ra1 f1N Ra4 Nd8 Ka1 Ng3 Nf3 g1N Bb2 Nh5 Ne1 Ng7 Bf1 Ne2 Ng2 Ng3 Qh5 Rc8 a8Q Rc3 Qb7 Re3 Na7 Qb5 Qa6 Be8 Bd3 Bd7 Rf1 Be8 Rf4 c1Q+ Bb1 Qcc6 Bd3 Qh6 Bf1 Bd7 Bc3 b2+ Ka2 b1B+ Ka1 b3 d6+ Ke6 Rc4 Ba2 Bb2 Bc6 d7 Ne7 d5+ Kd6 Bd4 Nc8 Bc3 Ke7 Be5 Nb7 d8R Rg8 Rdf8 Nd8 R8f6 Re8 Rf8 Bd7 Rh8 Rg8 Qb7 Qbb6 Qa8 Ba4 Qc6 Qc5 Qa6 Qb5 d6+
rb1K2bq/bR2B3/Pr2Qnp1/1qP5/2pNQ1PB/1k2R3/NB3b2/Q1b4n b - - 0 1 illegal: No possible last move
bK1B3n/2R2r2/pN2P2N/q2bnNQ1/1PR3Q1/kpbPb1q1/B7/r1R4b b - - 0 1 illegal: No proof kernel
4Qn1K/b2q2P1/3N1r1N/1PQR2q1/p2B1qb1/1qPpRk1q/1B4n1/rR1B4 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 d5 b4 e5 f4 a5 b6 h3 g5 h2 f6 d3 c3 d2 b5 d4 g6 d3 g7 Nd7 f7 Nh6 f5 Ng4 b7 Ne3 Kh6 Bc5 f8R Ng2 b8B Ba7 Ne2 Kf3 f6 e4 f7 e3 Re8 Rf8 Qe1 d1Q Bb2 Qb3 Ng3 e2 Na3 Qc7 Rb1 Qf4+ Kh5 h6 Kg6 h5 Kh7 h4 Nf5 h3 Nh6 Qg5 Rg1 h1Q Nc4 Qh2 Be5 Qhf4 Nd6 h2 Bd4 h1Q Re5 Qh3 Rd5 Ne5 Rh1 Ng6 Rh2 Be6 Bf6 Bg4 Bd4 Rfe8 f8Q Re6 Qe8 Nf8+ Kh8 Rf6 Qc1 e1Q Be2+ Kg3 Bf3 Qe6 Bd1 Qd7 Qd2 Ne3 Re2 Kf3 Qe1 Ng2 Qg1 Rc8 Qf7 Rc4 Qe8 Ra4 Be5 Ra2 Qc5 a4 Bd4 Ra1 Re3+
B1r1n3/1nRbN1Pq/qPp1R3/2BR4/NQ1Q3p/P3nQr1/2n2k1n/4b2K b - - 0 1 illegal: No proof kernel
r2nN2B/4qp2/7n/bn1BP2R/b1rPNnpk/Q1n2Q2/5q1P/N1KQ1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 e4 Ke7 b4 Kf6 d4 Kg5 Kd2 a5 d6 c5 b6 a4 d7 a3 b5 g3 e5 c4 b7 a2 b6 f3 Na3 g2 Nc2 c3+ Kd3+ Kh4 Be2 g5 Nh3 g1N Nf2 g4 Bh6 Nh3 Ne4 f2 Rf1 Qe7 d8N Bd7 Ne6 Ba4 Nc7 Nc6 b8Q Nd8 Bg7 Nh6 b7 Nf4+ Ke3 Rg8 Bh8 Rg6 Rc1 a1N Ne8 Rc6 Bc4 Rc5 Bd5 Rc4 Rg1 f1Q Rg3 Qg2 Qa7 Qf1 b8Q Qg2 Nb4 c2 Qbb7 Qf1 Rb1 c1N Kd2 Nce2 Nc2 Nc3 Kc1 Qf2 Qc6 Bb5 Qa3 Ba4 Ne3 Nc2 Rf3 Nb4 Nc2 Na6 Na1 Nc7 Rb6 N7b5 Rb8 Qg1 Rf1 Qf2 Qb7 Qd7 Rc8 Bb4 Rc6 Qc7 Rf6 Ba5 Rf5 Qe7 Rg5 Nd6 Qbb3 Ndb5 Qf3 Ra6 Qbd1 Ra8 Rh5+
2qn1nN1/r3p1N1/B2r3p/1RQrb1Q1/3PqPPr/1N1k2K1/3RR3/rb2B3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 b4 Kf6 d6 Ke5 f4+ Kd4 Kf2 c5 d3 a5 d7 e3+ Kg2 c4 b6 h3+ Kh2 a4 b5 h6 b7 a3 b6 e2 Qc2 e1Q Bd2 a2 Nc3 Qe4 Re1 a1R Kg3 h2 Re2 Nf6 Nd5 c3 Be1 Nh7 Nf6 R8a7 Ng8 Nc6 b8Q Bg7 b7 Be5 Qa8 Nf8 b8R Qc7 d8N Bf5 Rb5 Qc8 Rd2 Ke3 Ne6 Nd8 d4 Bh7 Qc1 c2 Qd5 R1a6 Bd3 Rd6 Ne2 Bg6 Qa3 c1R Ng7 Ra1 Nc1 Bh7 Rf1 h1R Rff2 Rh4 Nb3 Bf5 Bf1 Bg6 Rde2+ Kd3 Qac5 Bf6 Qg5 Be5 Nf6 Rg8 Nge8 Rg7 Ng8 Rf7 Rg2 Rff6 Ng7 Rd5 Ra5 Rfd6 Rd2+ Ke3 Ba6 Bf5 Rb5 Bh7 Rb2 Kd3 Rge2 Qef5 Rf2 Ke3 Ra2 Qd3 Rfd2 Qe2 Rab2 Bb1 Rdc2 Kd3 Ra2 Qe4 Re2 Nde6 Rac2 Nd8 Rcd2#
1q3k1B/bbP1QN1K/B1PN2nR/1P1p4/rB1n1Q1p/b2b1q2/1br5/2RN4 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 dxc5 gxh4 Ke2 a5 Ke3 e5 b4 h5 f4 d5 g4 h3 c4 h2 f5 a4 c6 a3 f6 a2 c7 Nh6 b6 Be7 f7+ Kf8 g5 Bg4 c5 Nc6 g6 Qb8 Nf3 Bc8 Ba6 Bb7 b5 Ng8 Qe2 Nd4 Bb2 h4 Nc3 Rh6 Rhc1 h1B Ng5 Bg2 Qe1 Bf1 Nd1 Bd3 Bc3 Bd6 Bb4 Ne7 Qf2 Rh8 Qf4 Kg7 f8B+ Kg8 g7 Ng6 Nf7 Rh6 Rab1 a1B c6 Bb2 Bc3 Bda3 Bfb4 Rh5 Ra1 Rg5 Nd6 Rg2 Ra2 Rc2 Raa1 Kh7 g8N Kg7 Nh6 Ra7 Nhf7 Kf8 Nf2 Ra8 Re1 Ra7 Rac1 Ra8 Re2 Ra7 Nd1 Ra8 Kf2 e3+ Kg2 e4 Kh3 Ra7 Kg4 Ra8 Rf2 e2 Kh5 e1B Kh6 e3 Kh7 e2 Rf3 Bf2 Rg3 Bc8 b7 e1Q Rg5 Qe2 Rh5 Qf3 Rh6 Qa7 b8Q Qb6 Bb7 Ra4 Ba6 Be3 Qa7 Qb8 Qb6 Bb7 Qc5 Ne2 Bh8 Bg1 Qcc4 Ba7 Qce4 Nd4 Qe7+
1bb2bRK/1BP2rpR/Nb1qnBQb/q1P5/5r2/2P4B/p2NkN2/n6Q b - - 0 1 illegal: No proof kernel
2K1B3/PR3pB1/2Q5/bP2nR1b/bpPN4/qNknQr1R/3rNb2/3bq3 b - - 0 1 illegal: No proof kernel
3n1KBn/p1N1RB2/3qN1p1/P7/NRq1q3/1b1P1P1r/3QqQkq/3B2br b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 f5 gxf5 h6 Bb2 Rh7 Bf6 Rh8 Bg5 hxg5 Ke2 Kf7 Ke3 Kf6 c4 Ke5 a4 b5 h4 g6 a5 e6 f6 b4 d3 b3 f7 g4 h5 b2 c6 g3 f3 g2 c5 Nh6 c7 Nd7 c6 Ba3 f8N Nf7 h6 Nc5 h7 Nb7 Qd2 Qd6 Nc3 b1Q Be2 Qb3 Rb1 Nbd8 Nb5 Qc4 Bd1 Ba6 c8B Bc5+ Nd4 Bb5 c7 Ba4 Ne2 Bb3 Nc3 g1Q+ Qf2 Qg3 Na4 Qh2 Re1 Rb8 Ba6 Rb4 c8B Rb5 Kd2 Kf4 Ke2 e5 Be6 Rb4 Nb5 e3 Nc7 e4 Bb5 Bd4 Be8 Rb5 Rb2 Rh5 Bd5 Rh3 Rb1 Rg8 h8Q Rg7 Qg8 Nh8 Bef7 Rgh7 Qg7 Bc5 Qc3 Bb6 Rg1 Bd4 Rg5 R7h4 Re5 Rh6 Re7 Rh7 Ke1 e2 Kd2 Bc5 Bg8 Bb6 Bdf7 e1Q+ Kc1 e3 Kb2 Qe2+ Qd2 Qe5+ Ka3 Bd4 Qf1 Kg3 Nfe6 Bb6 Qfe1+ Kg2 Qh4 Rh5 Qd4 Qd6+ Qc5 Ba2 Rb4 Bb3 Qd4 Qf2 Q4b2 e2 Qd4 e1Q Q4e3 Qfe2 Qf2+ Kh1 Be8 Qhe5 Bef7 Qg1 Qfe1 Qef4 Re8 Qd7 Rb5 Rh2 Qh4 Qgg2 Qg3 Bg1 Qf2 R5h3 Rb8 Qfe3 Rb5 Qcc6 Kb4 Qa6 Rb6 Qe4+ Kc5 Qdb5+ Kd6 Qbc4 Ke7 Qg3 Rb4 Qad6+ Kf6 Qg2 Kg7 Qgg3 Qfe3 Kg2 Re7 Rh1 Kf8 Qh2 Qf2+
5q2/p1p1B2R/R1K1Bqbn/2N1P1N1/Q1BbP1rP/Q7/r2bR3/1kb2nb1 b - - 0 1 illegal: No proof kernel
3bq3/6B1/3KNBN1/n3R2B/2rb2PP/PN1bbpkr/p2n2Q1/Q1n2Rq1 b - - 0 1 illegal: No proof kernel
k1Nn2nK/b1q5/Q1nq1B2/2BR3b/R3P2Q/2p1q2B/2Pr1NpP/2q3Nr b - - 0 1 legal: proof: a4 e5 d3 b5 axb5 e4 dxe4 Be7 Be3 Ba3 Bc1 Bf8 g4 f5 g5 f4 e3 fxe3 g6 hxg6 Nf3 g5 Ng1 g4 Ke2 c5 Kd3 a5 f4 g5 b4 d5 f5 Kd7 b6 Kc6 b7 c4+ Kd4 e2 Ke5 e1N f6 a4 f7 g3 Nc3 g2 Nh3 g1Q Bf4 g4 Qd3 g3 Nf2 a3 Ng4 d4 Nb5 c3 Nf2 a2 Nd6 Ng2 Bg5 Qc7 Bf6 Nf4 Bh3 g2 b5+ Kb6 Qg3 Ka7 Qh4 d3 Rd1 Bh6 f8B a1Q Rd2 Bg4 b6+ Ka6 B8e7 Bh5 Kf5 Qae1 Nc8 Nc6 b8N+ Kb7 Bc5 Qc1 Nd7 Ra1 Ne5 Ne6 Nf3 Ned8 Rd1 Qe1 Ng1 Be3 Rd2 Kb8 b7 Rh7 Rd1 Rd7 Rd2 Bd4 Rd1 d2 Kg5 Nge7 Kh6 Qe3+ Kg7 Ng8+ Kh8 Rb1 Re1 d1Q Re2 Qdd3 Rd2 Be5 Rd1 Qdd6 Rd5 Bd4 Nb6 Ka7 b8Q+ Ka6 Qc8+ Ka7 Qa6+ Kb8 Qc4 Ka7 Nc8+ Ka8 Bb4 Ba7 Bc5 Re7 Qa6 Re5 Rd4 Rd5 Ra4 Rd1 Nf3 Rd2 Rd1 Re2 Rd5 Rd2 Qc4 Qb2 Qe2 Rh1 Ng1 Qc1 Qa6
1B2qr2/1B6/N1qq2nb/4kb2/2p1bnPN/3pQ1KP/2PRb1RQ/1R3Br1 b - - 0 1 legal: proof: f4 b5 d4 h5 a4 g5 axb5 e5 Qd3 h4 dxe5 gxf4 g4 Be7 Qh3 Bf8 Qg3 hxg3 b4 Ke7 e4 Ke6 h3 f5 b6 d5 b5 c5 b7 a5 b6 d4 Ra4 f3 Ra3 f4 Bb5 d3 Ba6 g2 Kf2 a4 Nd2 c4 Ra1 a3 Rh2 a2 Nb3 Nc6 b8R Nd4 b7 Ne7 Bb2 Qc7 Rd1 a1Q Rd2 Qc6 Ba3 Bh6 Bd6 Rf8 Nc5+ Kf7 e6+ Kf6 Bc7 Ng6 e7 Ne6 e8B Qaa4 Bd7 Qd6 Bc6 Ke5 Bd5 Qe8 Bc6 Kd4 e5 Ra7 Ra8 Bd7 b8Q Rb7 Ra7 Rb1 Rb7 Ra1 Rb1 Bc8 Bab7 Bd7 Ke1 f2+ Kd1 f1B Ke1 f3 Kf2 Nef4 e6 Be2 e7 Bf5 Na6 Ke5 Kg3 f2 Nf3+ Ke6 Be4 g1Q+ Rg2 f1B Nh4 Qgb6 Bec6 Qb5 Be4 Qec6 e8Q+ Kf6 Bd5 Bf3 Qe3 B1e2 Qbe8 B3e4 Bb8 Qa4 Qd8+ Ke5 Qdb6 Rf7 Qg1 Rf6 Qh2 Rf8 Qe3 Qe8 Bdc6 Qb5 Bd5 Qbc6 Rb6 Rh1 Rb1 Rf1 Rf2 Rc1 Qb6 Bh1 Bg2 Rd1 Qe3+ Kf6 Bf1 Bhe4 Bg2 Rh1 Bf1 Rg1+ Rg2 Ke6 Rb6 Ke5 Rb1
7n/1K3N1b/1Br1n3/q2QQr1p/n1qPBNR1/kRb3P1/p1P5/1r1rQN2 b - - 0 1 illegal: No proof kernel
2qb3R/1rrB3b/4N1N1/3nrP1Q/1Q3qp1/P1Qbp2B/1Rn1P1K1/3Bk2r b - - 0 1 illegal: No possible last move, all moves rejected
Nr1qk1Q1/Bn5n/4b1B1/RR1P1B1q/N1p3nP/1Nbr2P1/p2r4/5KQr b - - 0 1 illegal: No possible last move
qn2Q3/N1K4k/3B2Pp/4R1n1/bqQn1R1Q/b5PP/nN1B1rp1/2brN3 b - - 0 1 illegal: No possible last move, all moves rejected
1br5/2R3bq/3n1Np1/4qN1P/Kn1B1RP1/2NQq2Q/4BprP/2Q1nnk1 b - - 0 1 illegal: No proof kernel
bK4k1/1nB3Nb/rB1Pb1q1/1q1Pn2P/1pr3RN/2b1QBn1/Q5p1/R6N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 c5 Kf3 g5 Ke4 b5 Ke5 f5 h4 Kf7 d4 g4 e4 c4 a4 c3 h6 f3 h5 g3 a5 f4 a6 f2 d6 f3 h7 c2 a7 b3 Nh3 b4 Qd3 b2 Bd2 c1Q Rh2 Qb6 Bg2 f1B Qe3 f2 Bf3 Qc4 Rg2 Nh6 Bc1 Qd3 Nd2 b1B Kd5 Qe2 e5 Nd7 Rg1 Rg8 h8B Rg4 e6+ Kg8 e7 Nf7 e8N Qd3 Bf6 Nfe5 Ng7 Bg2 Bd8 f1N Bc7 Qg6 Nf2 Nc5 Nh1 Qb5 Bb2 Be7 Bc3 Bf6 Bb2 Rb8 a8Q Rb6 Qa2 Ra6 Bc1 Bcf5 Bb2 Bfd3 Bc3 Nb7+ Ke6 Be4 Bb2 Bc6 d5 Rc4 Bd4 Bc2 Bdb6 Bh3+ Bg4 Bd3 Nf3 Bc2 Nh4 Be4 Rd1 g2 Rd4 Ng3 Ra1 Nf5 Bf3 Ng3+ Ngf5 Bh8+ Ke7 Bc2 Ng7 Be6 Re4 Nc5 Kd8 Ba8 Rg4 Bd3 Bb8 Bc2 Kc7 Bb1 B8a7 Nb7+ Kb8 Qge8+ Bd8 Ng6 Ngf5 Bc3 Ng7 Ne5 Bc5 Bh7 Bb6 Qg6 Bdc7
2N1q3/b2bk3/3PqqPn/rRp4K/pNnQ1q1P/2N1B3/2R1r2n/1B1Q2B1 b - - 0 1 illegal: No possible last move
1r6/B1bQrB2/k1PN4/2n2qRp/1npr1qb1/4P1PR/1NR4r/K2QQ2n b - - 0 1 illegal: No proof kernel
1qr1Nq2/1N4b1/2p2nBP/Pbr1QK2/NPp2R2/5q2/Q1Bnn3/1RBkq3 b - - 0 1 illegal: No proof kernel
q5Qn/R1NKQB2/rP1p2b1/1RB3N1/1nN2k2/2b4p/bB2n1PP/4qrn1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 Nf6 cxd5 Ng8 d6 Bb7 Ra2 Ba6 Ra1 Bc8 f4 g5 d4 gxf4 d5 Bh6 d7+ Kf8 d6 exd6 Qb3 Ke7 Qd1 Bf8 Kf2 Ke6 Kf3 Kf5 b4 a5 b6 c5 b5 h5 b7 h4 e3 h3 b6 a4 Qe1 a3 Bb2 c4 Qf2 a2 Qg3 c3 Qh4 c2 Qh6 c1N Bf6 Ra6 Be2 Ne7 Na3 Nbc6 b8N Nb4 Qh7+ Ng6 Bc4 Bg7 Bd4 Rf8 Qg8 Ne2 Bc5 Bc3 e4+ Kg5 e5 f5 Rb1 a1Q e6 Rf6 Rb2 Qe1 e7 Qf8 d8B Be6 e8Q Bf7 Qh7 Nh8 Qg8+ Bg6 Qe7 Qe8 Ra2 Qc6+ Bd5 Qa8 Nc4 Qd2 Kf2 f3 Bf7 Qe1+ Ke3 f2 Nf3+ Kg4 Ng5 f1B Rb2 Ng1+ Re2 Bd2+ Kd4 f4 Re5 f3 Rf5 f2 Re5 Ra5 Na6 Kf4 Nc7 Be2 Rd5 f1N Re5 Rf5 Rd5 Ng3 Re5 Nc6+ Kd5 Nb4+ Ke6 Ra6 Kd7 Bd3 Rd5 Bb1 Re5 Ba2 Rd5 Nf3 Rf1 Ne2 Re5 Qf2 Ra1 Bc3 Rd5 Bb3 Ra5 Nfg1 Rb5 Qe1 Rd2 Ra1 Ra2 Rf6 Ra7 Ra6 Qee8 Rf5 Bf6 Ba2 Be5+ Kg4 Bf6 Rf1 Qe7 Kf4 Bfd4 Bd2 Ba1 Bc3 Bb2
BRr1kQ1N/8/1pr4b/pNb3Nb/1Rq2bnP/2Q2QnB/P1n1qP2/1K6 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 g5 Kc1 d5 h4 a5 e4 b6 c4 g2 e6 g3 c6 g4 c7 d4 c5 d3 c6 d2+ Kb2 Nf6 e7 Qd3 e5 Na6 Qf3 d1Q Na3 Bh6 Rb1 Qc4 Nh3 g1B Bg2 Bh2 Rg1 Nb4 Nb5 Nc2 Ng5 Qde2 Rge1 Bf5 c8B Bg6 c7 Bh5 Bb7 Ra7 Bh3 g2 Ba8 g1B c8N Bf4 Ncd6+ Kd7 Ndf7 Rc8 Nh8 Ke8 Red1 g3 Rd7 g2 Rb7 Bgh2 Rb8 g1N Qc3 Ne1+ Ka1 Be3 Rb4 Nc2+ Kb1 Bd4 Qf3 Ng4 Qc3 Bc5 Qf3 Kd7 Qc3 Rb7 e6+ Kc6 Rb3 Qf1+ Kb2 Bf4 Rb4 Qfd3 Kb1 Ne2 Qd2 Ng3 e8Q+ Qd7 Qe7 Qdd3 Qc3 Qf3 Qh7 Qfe2 e7 Kd7 Qe4 Rbc7 Qef3 Rc6 Na3 Kd6 e8Q Kc7 Qg8 Kd7 Nb5 Ke7 Qgg7+ Ke8 Qf8+
1Q4qQ/n4BN1/1pP2Rpr/4R3/2b1KR2/P2NP1b1/k1r3n1/1bQr1rBq b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kd2 Ke7 Kd3 Ke6 h4 Kd5 e3 f5 e6 g6 h6 b6 a3 b3 h5 b2 h7 f4 h6 f3 e7 f2 e8R Nf6 Rh4 Nc6 Nd2 b1B Nb3 Bd6 Nc5 Nh5 Ne6 Na7 Ne2 Bg3 Ng7 d6 Rf4 Be6 Re7 Rc8 Bb2 Qg8 Qc1 Rc7 Bh3 f1R Ra2 Kc5 Ke4 d3 Be5 Bc4 Be6 d2 Bf7 d1R Rf6 Kb5 Nf4 Ka4 Nd3 Nf4 c3 Kb3 Rf2 Ng2 R2f4 Ka2 Ree6 Ba6 c4 Bb5 c5 Bc4 Bc3 Rc6 Be1 Rc8 Bf2 d5+ Kf3 d4 Re5 Rfe1 Bg1 Rf1+ Nf2 d3 Ke4 d2+ Nd3 Rde1 Rd6 d1Q Rdf6 Re2 c6 Rc2 R6f5 Qh5 Rf6 Qh1 Be8 Qe6 Bf7 Rhd8 h8Q Rd5 Be8 Qg8 h7 Rcd8 Bf7 R5d7 Nf2 Rdd1 Nd3 Rd5 Re7 Rh5 Re5 Qc8 Qg8 Rh6 h8Q Qe6 Qb8 Qc8 Ne1 Qg8 Nd3
3N1Bbr/1K6/PBp1PNQ1/1q1B3R/6Q1/rqQ1q1kn/R1p2bPn/2q1r3 b - - 0 1 illegal: No possible last move, all moves rejected
Qq6/B6p/bn1QKnkB/1BPN1P2/N2p1bq1/5Pn1/3qRRN1/1q4rr b - - 0 1 illegal: No possible last move, all moves rejected
2rbR1r1/2r3Qp/Rqq2P1B/Nk3n2/1q6/1bPB1p1B/P2q2N1/nKQQ4 b - - 0 1 illegal: No proof kernel
1k6/1qqnNb1p/Pr2B2P/N1Nq4/RB1PQ1bn/1rq4Q/1rR2p2/5B1K b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f3 axb4 f4 exf4 g3 f5 Qb3 f3 Kd1 f2 Kc2 f4 Qf3 Bd6 Qb3 f3 Qa4+ Ke7 Qb3 Bf4 gxf4 Ra4 Kb2 Kf7 Qd1 Ke8 Kc2 Ra8 Kd3 Kd7 Ke3 c5 d4 Kc7 h4 g5 a4 b5 f5 b3 d6+ Kb7 a5 b4 f6 c4 d7 g4 a6+ Ka7 f7 b2 f8N c3 h5 g3 h6 c2 Qd3 b3 Rh2 g2 Bd2 c1Q Na3 b1Q Nc4 b2 Na5 Qbc2 Qe4 b1R Nh3 g1Q Ra4 Qcc7 Ng5 Ne7 Ng6 Rb2 Ne6 Qh1 Nc5 Qc4 Bb4 Qc3+ Nd3 Qg8 d8Q Bg4 Qd7 Qd5 Qdf5 Rg8 Qh5 Re8 Qh3 Nd7 Rg2 Kb8 Rh2 Nc8 Ne7 Nd6 Kf4 Rf8+ Kg3 Rf6 Nc5 Rb3 Qe6 Ra7 e4 Rb7 e5 Rg6 Qf5 Rb6 Qe4 Nf5+ Kf4 Nh4 Kg3 Rgd6 e6 Qdb7 Bc4 f1B Rc2 f2+ Bd3 Qf3+ Kh2 Qf5 Kh1 Qfd5 Bc4 Bfe2 Bb5 Bd1 Bf1 Rb5 Nc8 Rb2 e7 Rdb6 e8B Bh5 Bf7 Bdg4 Be6 Bf7 Ba3 R5b4 Ne7 R4b3 Bb4
B2qN3/3r1nPn/N2qk1B1/1q2BP2/1rR3Kn/1q6/1Pp1NpRb/Q5Qb b - - 0 1 illegal: No possible last move, all moves rejected
q2kn3/5prN/2BPQBq1/Pb1q3q/B3Rb2/K1p4Q/Pn1Q2n1/3Rr1N1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 e4 h5 d4 b5 Kd2 c5 Kc2 b4 Kb2 f3 g4 f2 e5 c4 e6 h3 e7 b3 d6 c3+ Ka3 h4 d5 b2 g5 h2 g6 h3 g7 Ba6 Qb3 Nc6 Bd2 Rh7 Qc2 Nf6 g8Q Bb5 Qd1 Ne5 Bg5 Nd3 Qf3 Rg7 Bg2 f1N Nd2 b1Q Ne4 Ne3 Qe2 Rc8 Qh7 Nb2 Qd2 Qd3 Rd1 Qc2 Bf3 Ng2 Qf5 Rc6 Qe6 Qa8 Bh4 Rc7 Ng5 Qg6 Nh7 Rc4 Qh6 Re4 Rd4 Re1 Re4 Rg8 Qe3 Bh6 Bd1 Bf4 Ba4 Nh5 Bf6 Ng7 Qe5 Kd7 e8B+ Kc8 Bc6 Ne8 Qh5 Rg7 d7+ Kc7 Re7 Kd8 Qe6 Re4 Nf3 Re5 Rd1 h1Q Ng1 h2 Qhh3 Re1 Nf3 Qf1 Ng1 h1Q Qee3 Qfd3 Re4+ Kc7 Qe6 Qhh5 d6+ Kb8 Qd2 Qdd5 d8Q+ Ka7 Qde7+ Kb8 Qe5 Kc8 Qed4 Qhg5 Q4e3 Q5h5 Qh3+ Qgf5 Bd4 Qfg4 Qe6+ Kd8 Be5 Qgg6 Bf6+
N1b1b2q/1B2P3/nK3p1q/4Pp2/R3nRBB/P1b1rNbn/4k3/Q4rQN b - - 0 1 illegal: No proof kernel
k5rr/1BKRPPRN/p2QNrr1/4R3/bn1pq3/P3Qq2/1Q6/b3nB1b b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 b5 Ke3 d5 Kd4 Kd7 c4 Kc6 f4 Kb7 e4 g5 h4 g2 f5 a6 h5 g3 a3 g4 h6 b4 h7 b3 c6+ Ka7 c7 b2 c5 Be7 f6 Nd7 f7 Bh4 c6 Qe8 e6 Be7 e5 Ngf6 Nd2 b1B Ne2 g1R Ne4 g2 Ng5 g3 Rh5 Bb7 c8R Bc2 c7 Nc5 Nf4 Ba4 Rd8 Nd3 c8B Ne1 Rd7 Bb4 e7 Bc3+ Kc5 d4 Kd6 Nd5 e6 Rb8 Qc1 Ka8 Qb2 Nb4 Kc7 Rh1 Rb1 g1R Rd1 Rg8 h8Q g2 Qh6 Bf3 Rd3 Rb6 Nh7 Rh2 Re5 Bd5 Qc1 Ba1 Rg3 Rd6 Rg7 Rhh1 Nf6 Bb7 Qg6 Rhh8 Qb2 Rb6 Nh7 Bf3 Bb5 Rf1 Bd3 g1Q Qf6 Rf2 Bf1 Bh1 Qh6 Qg4 Qf6 Qf8 e8Q Qf3 Qfe7 Rg2 Qd6 Rg6 Qee7 Qe4 Qg5 Qf3 e7 Qe8 Qg1 Qe4 Qe3 Qf3 Qc5 Rbf6 Qd6 Qf8 Ne6 Qe8 Rd8 Qb5 Rd7 Qbe2 Kb6 Qd3 Kc7 Qde4 Bb7+
B1rr1r1b/q2npn2/q1Q1N3/P1B1n3/1P1pP2k/n1NB4/1b2R1Q1/1QR1K3 b - - 0 1 illegal: No proof kernel
5B2/3P1qrp/N5rB/KRnb2PB/5r2/Q1RP1q1p/Q1RN2rb/n1k4q b - - 0 1 illegal: No possible last move, all moves rejected
3b1k1b/RR1pB1rr/BN1P2bP/6bQ/3PRq1n/Q3pnq1/8/K1Qn1N2 b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 h5 d4 c6 g4 Qc7 e3 Qd6 e4 Qd5 cxd5 fxe4 Qc2 hxg4 Qe2 Kf7 Qd1 Ke8 Kd2 g5 Kc3 e5 f4 a5 h4 e3 b4 g3 Kb2 g4 f5 e4 d6 a4 h5 e2 f6 e1B h6 c5 b6 g2 b5 a3+ Ka2 g3 b7 c4 b6 c3 Bf4 c2 Bd3 c1B Be5 Ne7 Be2 Na6 b8R Nb4+ Kb3 a2 b7 Nd3 Rh2 Bg5 Nc3 e3 Rb1 a1Q Nf3 g1N Rh4 g2 Nd5 Ba5 Re4 Nf5 Qc1 Bd8 Nb6 Nh4 Nd2 Ngf3 Nf1 Nf2 Ba6 g1Q Rb2 Rg8 Ra2 Rg7 Qa3 Qe1 Kb2 Nd1+ Ka1 Qh2 Qc1 Qf4 Ra4 Bde7 Qa3 Qeg3 f7+ Kd8 Qc1 Rh7 Bf6 Bg7 Rc4 Bh8 Rc7 Ra7 Ra8 Rg7 b8Q Rb7 Qa7 Rb8 Kb1 Bb7 Ka1 Bd5 Rb7 Bc6 Re5 Be4 Re6 Bg6 f8Q+ Be8 Qf7 Rh7 Qg7 Bg6 Qf7 Rc8 Re4 Rg7 Qfc4 Ke8 Qc5 Kf8 Q5a3 Rh7 Qb8 Re8 Raa7 Bd8 Qbc7 Rg7 Q7c5 Ree7 Qf5 Ref7 Qg4 Rh7 Qh5 Rfg7 Be7+
1b1qn1b1/1RQp2pk/5b1Q/5BP1/r2R1r2/P1nr3B/N5P1/rqRN2KN b - - 0 1 illegal: No possible last move
1KBRb2N/n1P1R2k/2rBr3/2pQ1PQ1/qnBb2Pb/2n1qp2/2Q1N2b/8 b - - 0 1 illegal: No proof kernel
4KbR1/1NP1R1pb/3N1q1Q/nnBQ2P1/1Qpq1r2/P4k2/1Bbr4/4B1br b - - 0 1 illegal: No proof kernel
2b1Nb1n/2p3rB/r2Q1q2/k3Nnb1/P2N1P2/qR2Rp2/Q1PB3q/KB3b2 b - - 0 1 illegal: No proof kernel
Q1q1BkN1/1np2NQb/Rn2q3/1R1b1rrP/4n2p/KNP4q/3B1PR1/1q6 b - - 0 1 illegal: No proof kernel
N1QN1B2/KPq2qbN/4r1r1/1BP1Rn2/B1k1p1q1/n2q4/pP4b1/2n3RQ b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 h5 Kc4 d5+ Kc5 a5 f4 d3 g4 a4 c4 d4 f6 Ke6 b6 h3 g5 a3 b7 a2 f7 d2 g6 d3 g7 h2 Ne2 h4 Ng1 h3 Ne2 Rh6 Qb3 d1Q Qc2 d2 Qc3 Nc6 Na3 Nb4 Qf3 Ra6 Rg1 h1Q Nb5 h2 f5+ Ke5 f6 Qc7+ Qc6 Nc2 Nf4 Bh3 Ne6 Na3 Nd8 Rg6 Bd3 Nh6 g8B Bg7 f8N e6 f7 Bg2 Nh7 Qg4 f8Q d1Q Be3 Qc2 Rae1 Nf5 Bh6+ Qce2 Qe8 Qee4 Be2 Qd3 Qd7 Rb6 Qc8 Qf7 Nc7 Ra6 Kb4 Kd4 c5 e5 Na8 Qc7 Qf3 Rae6 Qf1 Qf7 Ka5 Kd5 Qf3+ Kc4 Qfc6 Qc7+ Ka6 Qf7 Ka7 Qc7 Rgf1 Qg1 Qf3 Qf2 Rg1 h1N Bd1 Nhg3 Ba4 Ne2 Qc6 Bh3 Qh1 Nc1 Bf7 Bg2 Bfe8 Bh8 Bf8 Bg7 Rd1 e4 Bec6 Qc3 Rd5 Qd3 Re5 Qff4 Be8 Qf7 Rd5 Qd6 Re5 Qdc7 Beb5+
Q3B2r/1P2K1Nb/1n2R1Rn/bbpRr3/qp4Pk/2q4n/2bQ1P1B/3N2N1 b - - 0 1 illegal: No proof kernel
1N5r/QP1Rb1qP/QR1n2b1/2N2B1q/1pr3Q1/4Kp1R/1r1P1B1q/q3n2k b - - 0 1 illegal: No proof kernel
2R4k/rPN2Pqp/pBr2n1N/b2qBn1Q/1Rn3bP/3n1q2/4QR2/1KN5 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 d5 cxd5 g6 a4 Nf6 axb5 Ng8 Be2 Qd6 Bg4 fxe4 f5 Qd7 f6 Qd8 Bf5 gxf5 d4 Kf7 Kd2 c5 Kc2 e5 g4 e3 h4 e4 b4 a6 g5 f4 d6 c4 d5 f3 d7 e2 b6 e1Q b5 e3 d6 e2 g6+ Ke6 g7 Kf7 b7 f2 Be3 f1N Ra2 c3 Bb6 Ne7 g8N Qg3 Na3 e1Q Ne2 Nd2 Bc5 Nbc6 b8B Qeg1 b6 Ne5 b7 Ra7 Bb6 Ng4 Nb5 Nc4 Nh6+ Kg6 f7 Kg7 Rh2 Nf6 Kb1 Q1e3 Qd5 Qef3 Ra4 Qgg4 Qh5 c2+ Ka2 c1N+ Kb1 Qgg3 Rf2 Qgg2 Be3 Qa5 d8R Qg5 Bd4 Bg4 d7 Nf5 Bbe5 Bb4 Bb6 Bd2 Ra8 Rc8 d8Q Rc6 Qd3 Bc3 Nc7 Qad5 Qe4 Ba5 Rc8 Nd3 Nc1 Qg6 Qe2 Qg5 Ng8 Kh8 Rb4 Qg7 Nh6+
2R1BN1n/1PrqnpQb/1R1r1b2/BQ3P2/p2R2N1/2n1P3/1q2BK2/1qnk4 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 h4 gxh4 f4 Ke7 g4 Kf6 c4 a5 c6 h5 e3 d5 c5 h3 g5+ Kf5 g6 Ke4 c7 h4 b6 a4 b7 d3 c6 d2+ Kf2 h2 g7 d4 Qb3 d1N+ Ke1 h3 Ba3 d3 Ne2 Kf3 Qa2 Nb2 Rg1 h1Q Bb4 h2 Nbc3 Qg2 Rb1 h1Q Rd1 Ra6 Qb1 Nd7 Ba5 Ne7 g8Q Ne5 Ne4 Bf5 c8R N5g6 c7 Rd6 Nf6 Qd7 Ng4 Bg7 Qf8 Bd4 Qg7 Bf6 Rd2 Rf8 Rd1 Nh8 Nd4+ Ke4 Rd2 Bh7 Ne6 Kf3 f5 Re8 Nf8 Qgh2 Ra8 Rc8 Ra6 Qe5 Rb6 Qeb5 Rc2 Qb3 Rc4 Qa2 Rd4 Qa3 Bh3 d2+ Kf1 Nd3 Qb5 d1N Bg2+ Kg3 Ke2 Qa2+ Kf1 Nc1 Be4+ Qhg2+ Ke1 Nc3 Bd3 Kf3 Rh1 Rd8 c8B Qb1 Rh2 Qgb2 Rc2 Rc6 Kf1 Rc7 Kg1 Qc6 Bd7 Qe6 Be8 Rd6 Rc6 Qd7 Ra6 N3a2 Rcc6 Nc3 Rcb6 Qc8 Ra8 Qd7 Rc8 Rc4 Bc2 Ke2 Bd3+ Kd1 Kf1 Rc7 Kg1 Q2a1 Kf2 Qab2+ Be2+
2b3N1/1PP3qN/1rB1n1nQ/1P3K2/1p1kr2Q/RnB3b1/pR2Q1b1/1bq4R b - - 0 1 illegal: No proof kernel
qn2N3/Np2R1b1/B2Nq2R/3n4/PP2r2Q/BK2k3/nPpbr1rQ/1n1B4 b - - 0 1 illegal: No proof kernel
1KNq4/Qp5R/2QQ1b2/1Pb1r1bn/P2b2P1/3r4/2kp3N/RqBBq1Nn b - - 0 1 illegal: No proof kernel
1Q5N/1p2B3/1Pn1k2K/r1Nr3p/Rq5P/QPbr2Bn/2Nrb3/1Q2qbR1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 e5 e3 e4 Be2 Qd7 f4 gxf4 Bh5 Qa4 Bf3 Qb3 axb3 exf3 Kf2 Kd7 d4 a5 g4 c5 h4 f5 e4 h5 b5 c4 d6 c3 g5 a4 d5 c2 e5 a3 g6 a2 g7 Nf6 g8Q Nc6 b6 Ra5 Nd2 Bg7 Ne2 Nh7 Nd4 Ng5 Rg1 Rh7 Bb2 c1R Qf8 Rc3 Ne4 Rd3 Nc2 Bh8 Qb1 Nh3+ Kf1 f2 Ke2 Rd2+ Kf3 f1B Bd4 Re7 Bf2 Re8 Bg3 Rd8 Ng5 Bf6 Nf7 Bg7 Nh8 Be2+ Kg2 f3+ Kh2 f2 Kg2 Bb5 Kf3 f4 Ke4 f1Q Kf5 f3 Kg6 f2 Kh7 Be2 Kg6 Re8 e6+ Kd8 e7+ Kd7 Kh7 Bc3 Kh6 Rd8 e8N Qe1 Nc7 f1Q Na6 Re8 Kg6 Qf4 Nc5+ Kd8 d7 Qb4 Qd6 Re3 Kh6 Red3 Qb8 Ke7 d6+ Kf6 d8B+ Kf5 d7 Bf1 Na4 Ke6 Be7 Rad5 d8Q Bd7 Qdc7 Be8 Qf4 Bg6 Qg4+ Bf5 Qgd1 Bg4 Qb2 Bf3 Qa3 B3e2 Nc5+ Kf5 Rb1 a1R Rb2 Ra2 Qb1 Ra1 Qa5 Ra4 Ra2 Ra3 Qaa8 Ra5 Ra4 Ra7 Ra1 Ra2 Qa5 Ra4 Qb5 Ra5 Qa4 R5d4 Qaa2 Rd5 Qab2 R3d4 Ra4 R4d3 Bf8 Kf6 Qa3 Kf5 Bfd6 Kf6 Be7+ Kf5 Ne4 Ke6 Nc5+
RR1n1r2/1pQ1b1BP/q2P1r1q/1N2r1q1/5Q2/p1P1rBQ1/3K2n1/1b1NRk2 b - - 0 1 illegal: No proof kernel
R3KB1R/1p2p1r1/qqN1B1nr/Q1P5/2k1Q1Pn/b4rP1/2b2N2/b3bRN1 b - - 0 1 illegal: No possible last move
N2R2BQ/pbnN1Rb1/B2Prq1n/n2P4/3RPq2/bQ3rp1/3B2b1/K2k4 b - - 0 1 legal: proof: f4 b5 g4 d5 a4 bxa4 c4 h5 cxd5 e5 fxe5 hxg4 d4 Ke7 Kd2 g5 Kc3 c5 b4 f5 Kb2 a3+ Ka2 g3 h4 c4 e4 g2 d6+ Ke6 b5 c3 b6 c2 h5 f4 h6 f3 h7 f2 b7 g4 Qd3 g3 Nc3 Na6 b8R Bb7 Nb5 Bg7 Rc8 Nh6 Rh2 Re8 h8Q Qf6 Rh3 Nc7 Nf3 g1Q Bd2 c1B Rd8 Rf8 Be2 f1B Kb1 Qe3 Qb3+ Bd5 Rh1 Bg2 Rf1 Qef4 Ka2 Bb2 Rad1 Rb8 Bd3 Rb6 Rf2 Bc1 Ka1 a2 Be2 Ba3 Bc4 Kf7 Bd3 Kg6 e6 Kh5 e7 Kg4 e8B Bb7 Bc6 Re8 Bd5 Re6 Rff1 Rc6 Rf2 Rc3 Ne5+ Kh3 B3c4 Rf3 Nd7 Kg4 Rff1 Rf2 Bd3 Kf3 B5c4 Re7 Bg8 Re6 Bc3 Ke3 d5 Rf3 Bc4 Re5 Rd3+ Ke2 Bd2 Re8+ Qb2 Re6 Rd4+ Rd3 Rf3 Kd1 Rf2 Na6 Nc7 Rf3 Na8 Nc7 Qb6 Bb4 Kb2 a1N Ba6 Nb3 Ka2 Na5 Ka1 Ba3 Qb5 Rc3 Rf3 Q4h4 Rf5 Qf4 Qb6 Rf3 Qb4 Q6g5 Rf7 Qgf6 Qb3+
n3R3/p4Pq1/1b2PNp1/B6Q/n2r1Nq1/q1r2bRr/B3q1P1/QKR3kB b - - 0 1 illegal: Other
n1k1N2K/1b5Q/1nbBp2Q/2NQ1PpR/5P2/P3bq2/rR1r1N1b/bb1B4 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 b5 Kf4 g5+ Ke5 c5 d4 b3 f4 b2 h4 b4 d6 e6 h5 b3 d5 g3 h6 c4 h7 g2 Na3 b1B Rh5 c3 Be2 c2 Nb5 b2 Nh3 g1B Nc7 Bh6 Nf2 Ra5 Ne8 Bh2 Qh1 Nf6 Bd1 Bb7 a3 Bg7 Ra2 Na6 Bd2 c1B Bb4 Be3 Bc5 Kc8 d7+ Kb8 d6 Nc7 Qd5 Be4 Bb4 b1B Rb2 Qe7 d8N Na8 d7 Ra4 Bc5 Rd4 Bb4 Bc6 Nb7 Rd2 Bc5 Qd8 Bd6+ Qc7 Nc5+ Bb7 Qd3 Bd5 Qf1 Bc6 Qh3 Nd5+ Nf6 Rg8 h8Q Rd8 Qh7 Ndb6 Qh6 Rc8 d8Q Bh8 Qd7 Rd8 Qdh7 Kc8 Qf3 Qf7 Qd5 Qg6 Rh3 Qh5 Rh4 Bg7 Rh3 Qf3 Rh5 Bf8 Ne8 Bg7+ Qf6 Bh8 Qfg7 Rc2 Kf6 Re2 Kf7 Rd7+ Kg8 Rd8 Rb5 Ra2 Qgh6 Ba1 Rb2 Rd7 Kh8 Rd8 Bc7 Rd7 Qc4 Rd4 Bd6 Rd2 Qd5
b3nK1b/R1bBBn1P/3b2Q1/2b1N3/1r1NRb2/RQrkP2P/pp1B2q1/8 b - - 0 1 illegal: No proof kernel
r1b5/1n1pbR2/1NN1P3/1n4Q1/rP1r3B/Qr1P1Bp1/BRK2k2/r2rq1R1 b - - 0 1 legal: proof: g4 c5 f4 h5 b3 hxg4 f5 c4 bxc4 b5 f6 b4 a3 exf6 axb4 f5 Ra4 f4 Ra3 Be7 Ra1 Bf8 h4 Ke7 e4 Kf6 c3 Ke5 c5 a5 c6 f5 h5 g5 c4 Kd4 h6 f3 h7 g3 c5 f2+ Ke2 f4 c7 g4 c6 g2 e5 a4 e6 a3 Nc3 a2 Qa4 f3+ Kd1 Be7 Qa3 Ra4 Kc2 Na6 Nd5 Nf6 Nb6 Ne8 Bc4 f1R d3 f2 Rh2 Rd1 Bg5 f1R Bh4 Ke3 Nf3 g1R Nd4 Rf4 Rf2 Re4 Rf7 Nd6 Bd5 Re8 h8Q Nb5 Qh5 Nc5 Qg5+ Rf4 Rc1 a1R Ba2 g3 Rb1 Kf2 Rb2 Rdb1 Qf5 Rgd1 Qg5 Bb7 c8R Qc7 Ra8 Qe5 c7 Qe1 c8B Ba6 Nc6 Nb7 Rg7 Rd4 Ra7 N7d6 Bb7 Rb8 Ba8 Bc8 Bb7 Ra8 Rf7+ Kg2 Nb8+ Kg1 Bf3 Kf2 Nc6 Nb7 Ra5 N5d6 Re5 Nb5 Re2+ Kg1 Rh2 Kf1 Rh3 Kf2 Rh1 Bc5 Rg1 Be7 Bb3 Ra2 Bc4 Rba1 Qc3 R2a3 Ba2 Rg4 Rb1 Rd4 Qb2 Rb3 Qa3 Re4 Rb2 Rf4 Rh1 Rd4 Rg1
3N4/1rp2Kb1/2P1Qb1B/Pq2bpR1/P4nb1/b1N1rBn1/1k2QRQ1/N5b1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 e4 d5 Bh3 Qe7 Bg2 dxe4 Bf1 e3 Qe2 e4 Qd1 Qe5 fxe5 Be6 Bd3 Bd7 Bf1 Bc8 Ke2 Ke7 h4 Ke6 d4 Kd5 a4 Kc4 e6 g5 h5 b5 h6 g3 c3 g4 h7 g2 d5 b4 d6 b3 e7 g3 e8Q b2 d7 Nc6 d8N Bg7 Qdd7 Kb3 c4 Nce7 c5 Nd5 c6 Nf4+ Kd1 e2+ Kd2 e1B+ Ke3 Ne7 Nc3 b1Q Na2 Ra7 Nc3 Rb7 Qd2 Bg4 Nf3 g1B+ Qf2 g2 Rh2 f6 Kd4 e3 Qe2 Bg3 Ne1 Nf5+ Kc5 B1f2 Nc2 g1B Bg2 Rf8 Qe4 Re8 h8Q Re7 Bd2 Kb2 Qe6 Bh4 Ra3 Ng3 Bf3 f5 Qhg8 Bhf6 Rh5 Bh2 Rg5 Bfg1 Kc4 Qa2+ Kc5 Qb3 Ra1 Re8 Rf1 Re7 Rf2 Re8 Qf1 e2 Qg2 e1B Qe2 Re3 Qe6 Qb6+ Kc4 Nh3 Kd5 Qa6 Qe5 Qb5+ Ke6 Nf4+ Kf7 Be7 Qe6 Ba3 Na2 Bf6 Bb4 Bd2 Bf8 Bdc3 Bh6 Bcd4 Nc3 Bg7 Qh3 Bdf6 Qg2 Nd3 Qc4 Nf1 Rh5 Bhe5 Qe6 Nf4 Rg5 Ng3 Na1+
nK5R/B3B3/4r3/N2P1Pk1/1QP1pr1r/2npnbNn/3r1qBR/2bQ2N1 b - - 0 1 illegal: No proof kernel
6r1/N3rB2/1b1Nb3/2pk1QNP/2pB2rb/2P1RB1q/n1P1r2R/KQb1n3 b - - 0 1 illegal: No possible last move
1k5r/B4nQ1/pbbR2P1/1PP1pN2/1b3N2/br2q3/Q1B1r2N/n1r1RK1B b - - 0 1 illegal: No possible last move
5R2/1qN1r1pk/1n2rR1P/K3P3/1BR2BPb/1p1b2QN/Q1rr2n1/n1Bn4 b - - 0 1 legal: proof: f4 d5 b4 h5 c4 a5 cxd5 axb4 g3 e5 fxe5 h4 Bg2 h3 Kf1 hxg2+ Kf2 Kd7 Ke1 Ke8 e4 f5 h4 Kf7 a4 Kg6 d4 b5 Kd2 c5 d6 f4 d7 b3 Kc3 b4+ Kc4 f3 Kb5 f2 a5 f1N e6 c4 d5 c3 h5+ Kh7 h6 b2 e7 b3 e8R c2 g4 Qe7 d8B Nc6 e5 Ne3 a6 Bf5 d6 Nd4+ Ka5 Nf6 d7 Bd3 a7 Nfd5 Qd2 Nb6 Na3 b1N Ra2 Nc3 Nb5 Ncd1 Nh3 g1R Qh2 Rg2 Ra4 Rd2 Qg3 Ng2 Nc7 Qf7 Rh2 Be7 Rf8 Bh4 Be7 Re8 Bb4 Re6 d8B Qf3 a8Q Qb7 Rf6 Rhe8 Rh1 R8e7 Rhf1 Rf2 Bf4 c1R Rf8 Rc3 Bc1 Rd2 R1f6 Nc2 Qa6 Rd7 Bde7 Rc4 Bec5 Rf7 Be3 Na1 Bf4 Rcc2 Bba3 Nge3 Rc4 Ng2 Bb4 Rfe7 Kb5 Nb2 Qa2 Nd1 Ka5
1NQrB3/1b4pR/n2P1r1b/P2r4/RN1nkpn1/2rPB3/2N2Q1n/1KQ2q2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 Ke7 h4 Kf6 e4 Ke5 d6 f5 a5 b5 h6 c5 h7 f3 h5 b3 h6 b4 Na3 c4 Rb1 b2 Ra1 b1N Bb2+ c3 Ne2 b3 Nd4 c2 Qc1 Bb7 Bb5 Be7 Be8 Nf6 Nc6+ Kf4 e5 f2+ Ke2 f1N Kd3 Rf8 h8Q Nc3 e6 Na6 h7 Nb5 Nb8 Nh2 Bd4 b2 Be3+ Ke5 Qg8 b1R h8Q Nd4 Qh4 Rb5 Qf2 Nfg4 Qh8 Bh4 e7 Rf6 Kc3 Rc5+ Kb2 Bg5 Qg8 f4 Qc4 Rd5 Qc8 Qd7 Ra2 Nhf3 Rh7 Ke4 Qh1 Ra7 Qb1 Qc7 Ba4 Qc4 Qbe1 c1R e8N Nc5 Qeg1 Ba6 Nc7 Nfh2 Be8 Rc3 Nc2 Bh6 Qc1 Qf1 Ra4 Rb7+ Ka1 Ra7 Qd8 Bc8 Nca6 Rd7 Nab4 Na6 Kb1 Bb7 Qc8 Rd8 d3+
nKR2nbb/P1QN4/R4Q2/BB3bp1/1q1brn2/4N3/1nP1p2P/1k1Br2Q b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 b5 a4 e5 f4 b3 c6 b4 a5 e4 a6 g3 c7 g2 a7 b2 Na3 b1N Bb5 e3 Qf3 b3 Bd3 b2 Bb5 Ne7+ Kd6 Rh4 Qf1 Nd2 Ba6 b1B Qd3 Bg7 Qd5 Ng6 Ra2 Bh8 Ra1 Ba2 Nf3 g1B Bb5 Bf2 Qb7 Bg8 Re1 Bg1 Ne5 Nc4+ Kc5 d5 Bd2 d4 Ba5 d3 Qh1 Bce6 c8B Nd7+ Kc6 d2 Kb7 Ncb6 Nac4 d1N Ra3 Ndf8 Nd7+ Ke7 Rc3 Nb2 f6+ Kf7 f5 Nf4 Rb1 Qe7 Ra1 Qb4 Kc7 Rb8 Bb7 Ra8 Bf3 Re8 Bd1 Na8+ Kb7 Re7 Kb8 Rg4 Ra2 e2 Raa3 Bd4 Ne3 Rg1 Rc6 Rf1 Rac3 Re1 Ra6 Bb3 Rc5 Re4 Rc8 Be6 Rc4 Ke8 f7+ Ke7 Rc8 Nh7 Nb6 Kd6 f8Q+ Ke5 f6 Bf5 Qd8 Nf8 f7 Bc5 Qc7+ Kd4 Qf1 Kc3 Qh1 Kd2 Nd7 Kc1 Qe5 Kb1 Qc7 Nh7 f8Q Bcd4 Qf7 Nf8 Qf6
3Nb1b1/R2Pp2p/nK1kP3/3PbR2/1B4R1/qn3Qn1/4BQ1q/3NnnNr b - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 h4 b5 b4 a5 Bg2 axb4 Bf1 Ra6 Bb2 Rg6 Bc1 fxg4 Bb2 g3 Ba3 g4 Bc1 Rg5 hxg5 Be6 Rh5 Bd7 Rh1 Bc8 f4 Kd7 d4 c5 Kd2 c4 Ke3 b3 a4 c3 a5 b4 a6 b2 f5 c2 f6 g2 a7 b3 a8R g3 f7 Nf6 d6 Nh5 g6 Qa5 g7 Na6 g8N Bg7 f8Q Be5 d5 Qa3 Bd2 c1N Nh6 Rg8 Nc3 b1N Rh3 b2 Qf2 Nb3 Rh4 Rg6 Be1 N1d2 Rg4 b1B Nf7 Rh6 Nd8 Bg6 Rc1 Bf7 Ra7+ Bb7 Kd3 Be6 e4 Bg8 Be2 Nf1 Nh3 g1Q Kc4 g2 Kb5 Qh1 Kb6 Qh2 Ng1 Nhg3 Qd3 Rh4 Qdf3 Rh6 Nd1 Rh5 Nh3 g1N Bb4 Rh4 Rc4 Rh6 Rf4 Rh5 Rf5 Rh6 Qg4 Nf3 Ng1 Ne1 Qgf3 Rh4 Ra8 Bc6 Ra7+ Kc8 Rd4 Be8 d7+ Kb8 Qh5 Qg2 Rc4 Rh1 Qhf3 Qh2 Rd4 Bf6 e5 Bg7 e6 Bh8 Kb5 Be5 Ra8+ Kc7 Rg4 Nbc5 Ra7+ Kd6 Bc3 Nb3 Kb6 Nc7 Bd2 Na6 Bb4+
1K2nq1k/2n1qP2/2prpB2/2B1P1n1/2P1Nr1N/1n1R1R1N/1n2QQ1b/2R4r b - - 0 2 illegal: No possible last move
r4q1q/1bN5/1n2Nn2/1RBQpQ1R/8/P1pr2Pr/KRP1nQ2/2r1rB1k b - - 0 1 legal: proof: e4 g5 b4 a5 h4 axb4 hxg5 Bg7 g3 Be5 g4 Bg3 fxg3 d5 Ke2 dxe4 Kf2 Ra6 Ke1 Ra8 d4 Kd7 Kd2 Kc6 a3 Kd5 g6 f5 g5 e5 g7 b5 g6 c5 Rh3 h5 Bd3 h4 Qh5 e3+ Kd1 e2+ Kd2 e1R Bc4+ Ke4 d5 f4 d6 b3 Kc3 f3 Kb2 f2 d7 f1Q Qh6 b4 Bb5 c4 Rh2 h3 Qh5 Qff8 Nf3 Bb7 Ra2 Nf6 g8Q Qc8 d8Q Nbd7 g7 Nb6 Rh1 h2 Qgf7 Rh7 Qg5 Rh3 g8R Re3 Bd2 Rd3 Nd4 Qb8 Ne6 Kf3 Be3 Kg2 Bc5 Qc8 Re1 h1R Qf5 Rg1 Qd4 Kh1 Nc3 Rf1 Rc1 Re1 Rg5 Qh8 Qdf2 Qcf8 Kb1 b2 Rh5 Nfd5 Ra1 Nf6 Ka2 b1R Rd1 Rc1 Nd5 c3 Rb1 b3+ Ka1 b2+ Ka2 Qhg7 Ndc7 Qgh8 Ra1 b1N Rd2 Rde3 Rd5 Nd2 Rb1 Nb3 Bf1 Nd4 Rb2 Ne2 Bb4 Re8 Rb5 Ra8 Bc5 Rf3 Qd7 Rd3 Qd5+
rR1Q1r2/p1n3bR/P1q2N2/3QQ3/b6r/kP4bP/2pBK1B1/q1bNb2R b - - 0 1 legal: proof: g4 e5 c4 h5 e4 hxg4 f4 b5 d4 bxc4 f5 Ke7 f6+ Kd6 dxe5+ Kc6 e6 Na6 e5 Nb4 Qd2 Nd5 Qd1 Nde7 fxe7 Kc5 Bh3 Kb6 Bf1 Kc6 e8Q Kb5 a4+ Kb4 b3 f5 a5 d5 e7 c5 h3 g5 e6 g3 a6 d4 Bf4 c3 Bg2 d3 Bc6 g4 Bc7 g2 Bd5 g3 Qe2 d2+ Kd1 f4 Be4 c4 Bb6 f3 Qd7 f2 e8Q f1R+ Qe1 c2+ Ke2 c1B e7 c3 Qg6 c2 e8R Qf6 Qdg4 Rh4 Q6g5 Bd7 Rb8 Bg7 Nc3 Ne7 Q4h5 Qc6 Ra2 Nd5 Nd1 Nc7 Nf3 g1B Ra5 g2 Nh2 Rf8 Ng4 Bf2 Qd8 g1B Nf6 Bh2 Qd5 Bhg3 Bg2 Be8 Rb5+ Ka3 Ba5 Bd7 R5b7 Be8 Kf1 Bd7 Qee5 Be1 Ne3 d1Q Bd2 Qg4 Nd1 Qd4 Ke2 Qa1 Rb6 Qc5 Rd6 Ba4 Rd7 Qc6 Re7 Bh8 Rh7 Bg7 Rb5 Qac3 Rb7 Qa1 Rb8
2K1B3/2pPBN2/pQq4q/bP3kqB/P1RQb2r/N2b2Rq/2r2R2/4nq2 b - - 0 1 legal: proof: e4 g5 c4 b5 g4 bxc4 h4 d5 hxg5 dxe4 f4 Qd7 g6 Ba6 g7 Bc8 g5 Nc6 f5 Ne5 Qb3 Ng6 fxg6 Qd3 Qd1 Qd8 Kf2 Kd7 Kg3 Ke6 Kg4 f5+ Kf4 h5 d4 c3 b4 c2 b5 h4 a3 e3 Qg4 e2 Rh3 e1Q Rh2 h3 Be3 c1Q Bg2 Bb7 Bf3 Qh4 Bc6 Qh6 Rf2 h2 Nh3 h1Q Be8 Nf6 g8R Nd7 g7 Qcc6 a4 a6 Qh4 Ne5 Na3 Nf3 Rc1 Ne1 Rc4 Qdd5 Bd2 Rd8 Bb4 Qdg2 Qg4 Rd5 Bc5 Re5 Bd6 Re2 Bh5 Rc2 d5+ Kd7 Ke5 e6 g6 f4 Qd1 f3 Ng5 Qhh3 Kf6 e5 Qd4 e4 Nf7 e3 Ke5 e2 Be7 Qf1 d6 Rh7 Rh8 Ba8 g8Q Qg1 g7 Qgf1 Rg2 f2 Rg3 Qg1 Bg5 Be7 Qb8 f1B Rf8 Qgg2 g8B Bb7 Kf4 Ke6 d7 Ba8 Qbb6 Bb4 Ke3 Ba5 Kf4 Qg7 Be7 Qh8 Kg5 Qg7+ Bg6 Rh4 Bh7 Qh8 Bh5 Qg7+ B7g6 Qf6+ Kh6 Qd5 Kh7 Qdg5 Kg8 Qff4 Ne5 Qc1 Rf2 Qh6 Nf7 Qcg5 Qg7 Bb7 Kf8 Ba8 Ke8 Bb7 Bf3 Ba8 Bgh5 Kf5 Kd8 Qce6 Ne5 Nd3 Kc8 e1Q Be8 Be4 Rc5 Qc6 Rc4 Be2 Nf7 Qef1 Qh8 Ne1 Qhd4 B2d3 Bh5+
1Bq4q/Pp6/bqp1N3/1B3Q2/1rq2R1P/1Pkq1RRK/4bbQN/Nn5n b - - 0 1 illegal: No proof kernel
3q1R1k/bbb2Qpb/1rP5/2R2q2/8/KN1r1QRp/Bn1BNPPr/1b2B3 b - - 0 1 illegal: No possible last move, all moves rejected
b2r1R1B/n7/3npNKp/1NPq1r1P/B1Qqr1nQ/R4PB1/r5k1/2q1R3 b - - 0 1 legal: proof: e4 b5 d4 c5 a4 cxd4 axb5 f5 g3 fxe4 Bf4 e6 Bg5 Bd6 Bc1 Bf4 gxf4 Bb7 Nf3 Ba6 Ng1 Bc8 Ke2 Ke7 b4 Kd6 h4 Kd5 h5 g5 f5 a5 b6 e3 Kf3 g4+ Kf4 g3 f6 a4 Kg5 Ke4 c4 d5 b5 e2 c5 e1R b7 d3 b6 h6+ Kg6 a3 f7 d4 f8R d2 Ra2 g2 Nh3 g1Q+ Kf7 d3 Re8 Ne7 Nf4 Qd4 Qg4 d1N Qg7 Kf3 Rf8 d2 Qf6 Nf5 Bb5 Nc6 b8B Na7 b7 Re4 Nd5 Kg2 f3 Nde3 Qh4 Nd6+ Kg6 Ng4 Bb2 Qc1 Ba4 d1Q Re1 Rh7 Nbc3 Rf7 Ra1 a2 Nb5 Rf5 Nf6 Qd5 Bc7 Q1d4 b8Q Bb7 Qc8 Bc6 Qa6 Rd8 Bb8 Ba8 Bc3 Nb7 Bg3 Nd6 Nh7 Qf2 Bh8 Qfe3 Nf6 Qed4 Rb1 a1R Rb3 Ra2 Ra3 Ne8 Nc7 Nd6 Qc4 Qf2 Nb5 Qfd2 Rf1 Q2d4 Re1
2Q5/B3rbKb/k2bp2Q/1rNRP2N/b4R2/2NPQ1n1/q3Pr1p/qq5B b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 h4 b5 axb5 gxh4 Nf3 Nd7 Ng1 Ne5 fxe5 Qd5 Ra6 Qd3 Ra1 Qd8 Kf2 Kd7 Kf3 f5 Kf4 a5 Kg5 c5 g4 Kc7 b4 Kb7 b6 h5 Kg6 c3 g5 a4 d3 f4 b5 a3 Bg2+ f3 Bf1 a2 Nd2 f2 Qa4 c4 Bg2+ Qd5 Ba3 f1B Ne4 h3 Re1 a1Q Rc1 c2 Nd2 c3 Qd4 h4 Bc5 h2 Qe3 h3 Ne4 Qda2 Nf3 e6 Nh4 Ra7 Nf5 Bd6 Kg7 Bd7 g6 Nf6 Rg1 Rf8 Bh1 Bc6 Rg4 Be8 Rf4 Bg2 Nfg3 Bf3 Nh5 Bf7 Rb1 c1R Rb4 c2 Nc3 Nd7 Rbd4 Be4 Rd5 Rb1 Bd4 c1Q Bc5 Kb8 b7 Nf6 Bd4 Kc7 b8N Kb7 b6 Rb5 Nd7 Ka6 b7 Qcb1 b8Q Bf5 Qd8 Ne4 Qg5 Ng3 Qh6 Rab7 Ba7 Rc7 Nb6 Re7 Nc4 Be4 Na5 Bf5 Bg2 h1B Nb7 h2 Bf3 Bg2 Be4 Bf1 Bh1 Bg2 Kf6 Bf3 g7 Bh7 g8Q Bfe4 Kg7 Bf3 Rdd4 Bd5 Qh8 Bb3 Rd5 Ba4 Qg8 Rc8 Qf8 Rc4 Qc8 Rcb4 Rf6 Rf4 Rf5 Rf1 Rf4 Rf2 Nc5+
n1K1nrR1/2NpbPPQ/3P2N1/r1qq1p1B/1q6/r2Rn2Q/n4kNB/5Q2 b - - 0 1 illegal: No proof kernel
4Rq2/N1K2pR1/qR2pn2/q1P3b1/N3P1Qr/B1r2QPb/1q2B2b/1Nr1k3 b - - 0 1 legal: proof: d4 g5 a4 b5 axb5 c5 f4 Nc6 g3 Ne5 h3 Ng4 hxg4 gxf4 Ra5 cxd4 Ra4 Bb7 Ra1 Bc8 Kd2 d5 Kd3 Kd7 b4 Kd6 e4 Ke5 c4 h5 c5 a5 b6 f3 b7 a4 b8R f2 g5 a3 g6 h4 g7 a2 b5 h3 b6 h2 b7 Ra3+ Qb3 Nf6 g8N Bh6 Nh3 Bg5 Nc3 Qa5 Be2 f1Q Rb1 a1B Rg1 h1Q Nf2 Qh6 Rh1 Qf8 Rh5 Bh3 Rh7 Bb2 Rg7 Rh4 Nfd1 e6 Na4 Bc3 Ne7 Bcd2 Nc8 Bde3 Qc3 Bg1 Na7 Bh2 Re8 Rb3 Kc2 Ra3 Bh5 Qfa6 Qe3 d3+ Kb2 d4 Ndc3 d2 Kc2 Rb3 Ba3 d1R Rb2 Rg1 Nb1 Rd3 Rb5 Rc1+ Kb2 Rb3+ Ka2 d3 b8Q+ Qc7 Bd1 d2 Be2 Rbc3 Qf3 Kd4 Rb7 Qca5 Rb6 Bh6 Qc7 Bg5 Qg4 Ke3 Qcf4+ Kd4 Qf1 Ke3 Qh1 Kf2 Qhf3+ Ke1 Kb2 R3c2+ Kb3 d1Q Nbc3 Qd2 Nb1 Qf4 Rb5 Qac7 Kb4 Rc3 Rbb8 Qd2 Rb7 Qad6 Kb5 Qcd8 Rb8 Q6d3+ Kc6 Qa5 Rb6 Qb2 Kb7 Qda6+ Kc7
N5Nr/1r1R3r/b1KPBp2/B4qr1/2pb3N/2qnkP1R/1B1Pq3/bQ1Q4 b - - 0 1 illegal: Other
k1nr3B/q1p3R1/Bn4N1/2qQR3/2PpNR2/5r1Q/n1KbqPP1/1r1n1N2 b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 d3 e5 Kd2 e3+ Kc3 e4 Ra6 e2 Ra1 e3 Nd2 Bb7 Nb1 Be4 dxe4 Ke7 Ra6 Kf7 Ra1 Ke8 b4 e1Q+ Bd2 a5 e5 h5 e6 d5 b6 e2 b7 d4+ Kd3 h3 c4 h2 b5 a4 b6 h4 e7 Kd7 e8R Kc6 Ra2 a3 Re5 h3 Rf5 Nd7 b8Q Bh6 b7 Qf8 Rb2 a2 Nf3 a1N Qd8 Qc5 Rf4 Nb3 b8N+ Kb7 Na6 Ne7 Ne5 Nb6 Kc2 Nc1 Rb5 Nc8 Ng6 Rf8 Qd5+ Ka7 Bb4 Na2 Qd3 Rb8 Nd2 Bg5 Re4 Rf3 Rf4 Qa1 Q3f5 e1Q Bd3 Qe2 Be4 Ra8 Re1 h1N Ba3 h2 Qh3 Ng3 Rb3 Qe7 Bd6 h1R Nc5 Nf5 Be5 Rg1 Bh8 Kb8 Rb5 Ne3+ Kb3 Nd1+ Kc2 Qe5 Bf5 Qe7 Ne4 Qd6 Rb3 Qc5 Bd7 Ka7 Bb5 Rb8 Ba6 Bh6 Qdh5 Ka8 Rd3 Na7 Qg5 Rd8 Rb3 Nac8 Rb5 Qf8 Re5 Qc5 Re7 Rf1 Qd5+ Qc6 Qa5 Nac3 Rg7 Nb2 Ng3 Qe3 Rf6 Rh1 Qaf5 Qc5 Bb5 Qa7 Ba6 Na2 Re2 Rd1 Ndf1 Rb1 Qe5 Nd1 Qd5+ Kb8 Rf8 Qe6 Re4 Bd2 Rf5 Qee7 Ref4 Qe3 Ne4 Qe2 Qg8 Ka8 Re5 Rd7 Qf7 Rd8 Qd5+
1k4B1/rbR3K1/1p4RP/1Q1b1Qq1/1rpQR1Nr/rP4P1/4Nqqn/b5B1 b - - 0 1 illegal: No proof kernel
R2bQ1Rb/1n6/1qP1p1pP/2q1N1rn/1q5Q/1Bn1Q2B/3K2Pq/BN1b3k b - - 0 1 illegal: No proof kernel
2n1QnbK/1p2RNn1/b2q2BB/7n/q4N1R/2B3pP/RP1P1b1q/rQ3k2 b - - 0 1 illegal: No proof kernel forced: bxDB
Q3bQ1b/1rRn2pK/N3p1Q1/bR1PPn2/bn5N/1b1N2r1/3kB1P1/B3r3 b - - 1 2 illegal: Other
Nr1B3n/2nRbb2/7k/QNb2np1/PrB1Qb1r/3R1P2/2Q1p1Pb/B6K b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 dxc4 h5 g5 Rh3 Qd6 Rh1 Qg6 hxg6 Bh3 Qh5 Bd7 Qd1 Bc8 d4 h5 a4 b5 f3 c5 Kf2 e5 d5 h4 d6 e3+ Ke1 h3 a6 b4 a7 e4 g7 Kf7 d7 Kg6 d8B e2 Kf2 e1B+ Ke2 h2 Qd6+ Be6 Ra3 b3 Be3 b2 Ra1 c3 Bd2 c4 Qa3 c2 Qe7 c1B Qb4 c3 Ra3 c2 Qb7 e3 Qb4 Bg3 Bc3 Ne7 g8Q+ Kh6 Qa5 Na6 Nd2 b1R Ba1 Nc7 Rd3 Ba3 Nc4 c1B Nb6 Rb8 a8Q Ng6 Qe4 Bf7 Na8 Bfe7 Qe8 Bac5 Q8c6 Bf4 Ke1 R1b4 Ne2 Rh7 Nc3 Rh8 Rg1 h1N Nb5 Bh2 Be2 Rh7 Kf1 Rh8 Rd7 Rh7 Bc4 Ng3+ Ke1 Nf5 Kf1 Rh8 Qc2 Rh7 Q6e4 Nh8 Rh1 Bcd6 Rg1 e2+ Kf2 Bcf4 Rd1 Bc5+ R1d4 Bhg3+ Kg1 Bh2+ Kh1 Kg6 Qa7 Rh4 Qa5 Kh6 Rd3
R3B1b1/3Rr3/2prQ1qb/r4p2/1NP1N1PN/1r2B1Qn/4kPK1/Rbr2r2 b - - 0 2 legal: proof: e4 g5 a4 b5 axb5 d5 Ra5 dxe4 Ra6 Bh6 Ra1 Bf8 b4 a5 h4 gxh4 Ra2 a4 Ra3 Nc6 Ra1 Na5 bxa5 Qd3 Ne2 Qd7 Ng1 Qd8 c4 Kd7 d4 Ke6 g4 h5 b6 f5 a6 c6 a7 e3 d5+ Ke5 d6 Ke4 d7 e5 b7 a3 b8R h3 Be2 h4 Kf1 a2 Qe1 h2 Qc3 h3 Rb7 Nf6 Nf3 Qe8 d8N Nd5 Rb6 Rh6 Rb8 Be6 Nb7 Qg6 Qa3 Nf4 Qa4 Bg8 Re8 Rb8 Na5 Rb3 Bd1 Kd3 a8Q e4 Na3 Bg7 Rg1 h1B Qc8 h2 Qe6 Nh3 Nh4 Bf8 Bf3 e2+ Ke1 Bg2 Ra8 h1R Be3 Bg7 Nc2 Bf8 Rb1 a1R Nb7 Bf1 Qa7 Ra5 Rd1+ Kc3 Qc8 Rb2 Qab8 Qh5 Nc5 Rb3 Bg5 Re6 Bh6 Qg6 Bf4 Bh6 Bc1 Bg2 Qh2 Bf1 Rd8 Rd6 Nb4 Bg2 Bf4 Kd4 Qg3 Bf1 Kd2 e1R Bg5 Bd3 Bg2 Re3 Ra1 Bc2 Bf3 Rec3 Ke2 e3 Bd5 Bb1 Kf3 e2+ Kg2 e1R Bf7 Re7 Qe6 Rcc1 Be8 Rhf1 Be3+ Kc3 Nd5+ Kc2 Ne4 Kd3 Nb4+ Ke2 Rd7
1Qk1n2B/rpNbr2n/P6b/1bP5/1PBQQ1NR/5r2/1bK3p1/RRbn4 b - - 0 1 illegal: No possible last move, all moves rejected
1br1kB1r/Q2bb1r1/1p1b1N1p/3RR3/4b1P1/1P3q2/BPQ2NBQ/3n1bK1 b - - 0 1 legal: proof: e4 f5 h4 fxe4 d4 c5 Bd3 cxd4 Bb5 g5 hxg5 Nc6 Be2 Na5 Bf1 Nb3 axb3 Qc7 Ra2 Qb6 Ra1 Qd8 c4 e5 f4 d5 Kf2 a5 g4 b6 f5 e3+ Kg2 e2 f6 e1B c5 h6 c6 e4 c7 e3 g6 d3 g7 a4 Nf3 d4 Qc2 e2 Ne5 a3 Rh5 d2 Qh7 d1B Nd2 a2 Qc2 d3 Kg1 Bd7 c8B Bg3 Rg5 e1B Ne4 d2 Bg2 Be7 Nd3 Bgd6 Rd5 Beg3 Ndf2 Bf3 Re5 d1B Be3 Bb8 Bc5 Bde2 Rd1 Bf1 Rdd5 a1R Ba6 Ra3 Bd3 R3a7 Bd6 Qc7 Ba3 Qc6 f7+ Kd8 Nf6 Be4 Bb4 Bbd6 Ba3 Rc8 f8Q+ Be8 Qf7 Bd7 Ne8 Nf6 g8Q Bb8 Qgh7 Bbd6 Qh5 Rb7 Ra5 Nd5 Qh2 Ne3 Nf6 Nd1 Rad5 Bf4 Qc3 Ra7 Bb1 Rac7 Qc1 Qc3 Qc2 Qf3 Ba2 Rb7 Rg5 Bb8 Qg7 Bfd6 Rge5 Rbc7 Qg5 Rb7 Qgd2 Ra7 Qa5 Rac7 Qa7 Rb7 Ng8 Ke8 Nf6+ Kf7 Qa4 Bf8 Bc5 Bdf5 Nh7 Bdc7 Be7 Bd6 Qa5 Ke8 Qa7 Be6 Bd8 Rg7 Be7 Bd7 Bg5+ Bfe7 Bf6 Rg6 Bg7 Rg5 Bf8 Rg7 Nf6+
1bR1b2k/1Pr1Np2/1R2QKQ1/2r2Nn1/Qr3N1b/1p2qPr1/4P1B1/1rr1B3 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 h4 g5 b3 gxh4 Kd2 b4 Ke1 Nc6 Kd2 Na7 Ke1 Nb5 cxb5 a4 Bd2 axb3 Bh6 Qf6 Bc1 Qd8 Kd2 c5 Kd3 h5 Ke4 d5+ Kf4 b2 a4 c4 g4 c3 a5 d4 b6 c2 e6 h3 Kf5 d3 b7 d2 g5 b3 a6 h4 f3 h2 g6 Qe7 a7 Nf6 g7 Rg8 Bh3 Ne4 Ke5 Bd7 Ra5 Rc8 a8N Ng5 Bg2 Rc7 Nc3 b1R Nd5 Ba4 Ba3 c1B Nh3 Bc6 Rf1 h1R Nhf4 h3 Bb4 h2 Rb5 Bd7 Qc2 d1R Qe4 Rd4 Be1 Rb4 Rb6 Bb2+ Kf5 Bf6 Ne3 Rg1 Qc6 h1R Qa4 Rgh8 g8Q R8h5 Qg6 B8g7 Bf2 Kf8 Rc1 Kg8 Be1 Be8 Rc5 Be5 Rc2 Qc5 e7 Kh8 Rc1 Bf8 Rc4 Bd6+ Kf6 R1h3 Rc1 Rg3 Nf5 Qe3 Rc5 Rc8 Rcc6 Bb8 Nc7 Rc1 Ncd5 Rc7 Rc2 Rb1 Bf2 Rgc1 Be1 Bd7 e8Q Bb5 Qe4 Be7+ Ke5 Bd8 Nde7 Be8 Rc5 Rh1 Rcc6 Rc5+ Kf6 Rg1 Qe6 Rh1 Bd2 Rhc1 Be1 Rd7 Rc7 Nh3 Rc8 Bdc7 Ned5 Re7 Qe5 Bd8 Qe4 Rec7+ Ke5 Qf2 Qe3 Bh4 Qe4 Ng5 Kf6 Qg1 Nde7 Qe3 Qe6
RRQ1K1Qb/1pb1N2r/1P4Bb/2b2b2/2r5/2B1q1P1/BR1rP2p/r2n2kN b - - 0 1 illegal: No proof kernel
1N1n3b/bk2P2n/Q1RnQ3/pq1P2p1/2r1bRB1/P3B2K/3N4/1nR2Bbn b - - 0 1 illegal: No possible last move
b3b2B/qB5R/1P1R2pq/knq1p1Pn/rn4Q1/3nP3/1N1Q2KN/B1q4Q b - - 1 2 legal: proof: f4 d5 c4 dxc4 a4 b5 h4 bxa4 h5 e5 f5 a5 h6 g6 Ra3 Bg7 hxg7 Ra6 Ra1 Re6 fxe6 Qe7 Ra3 Qg5 Ra1 Qd8 Kf2 f5 g4 c5 b4 h5 d4 h4 e7 Kd7 e8Q+ Kc7 e3 Kb6 d5 a3 b5 c3 g5 c2 d6 f4 d7 f3 Ne2 c4 Ra2 a4 Bb2 c1N Qc2 c3 Ra1 a2 Bg2 a3 Re1 h3 Qf8 h2 Qd1 h1B Qdd6+ Ka5 b6 c2 Nd4 Qc7 d8B Rh4 Rf1 Nf6 g8Q Bd7 Qh6 Nh5 Qhf8 Qc5 Qh7 Na6 Bf6 Be8 Rd1 Nb4 Bh8 Ncd3+ Kf1 c1N Qf5 f2 Qg4 Nb3 Nf3 Nd4 Nh2 Nb5 Bb7 Be4 Nd2 Bf3 Rab1 a1Q Rbc1 a2 Rc3 Qc1 Ba1 Bd5 Rc4 Bdc6 Rf4 Bh1 Rf7 Bf3 Qh6 Be4 Rh7 B4c6 Bb2 a1Q Qd5 Qa2 Kg2 Qa3 Ba1 Qa2 Bc8 Ba8 Bb7 Qaa3 Nb1 Qa2 Nc3 Qaa3 Na4 Qa2 Nb2 Qa3 Rg1 f1Q+ Kh1 Qf2 Rd1 Qff8 Qdg2 Qa2 Qd2 Qaf7 Kg2 Qd7 Qg7 Qdc7 Qf6 Qh6 Qf1 Qb8 Qh1 Qa7 Qd7 Rc4 Qf5 Rc3 Qg4 Ra3 Rf1 Ra2 Rf6 Ra4 Rd6
1R1R3B/7K/1qpr1N2/2r1R1qb/1nNrp3/1kP1Q1qB/nr2PP2/q3QQ2 b - - 0 2 legal: proof: g4 b5 h4 c6 a4 e6 axb5 Bd6 d4 Bc7 d5 f6 g5 fxg5 d6 gxh4 dxc7 h3 Kd2 Ke7 Kd3 Kd6 Ke4+ Kc5 b4+ Kc4 b6 a5 b5 d5+ Kf4 h5 b7 g5+ Ke5 g4 b6 h4 c3 g3 Ra2 a4 Rb2 h2 Bg5 h3 Rd2 d4 Qc1 g2 Qd1 d3 Qe1 a3 Nf3 g1Q Bh4 a2 Qc1 a1Q Ng5 Rh5 Qe1 Ra2 Na3+ Kb3 Nb1 Ne7 Kf6 e5 Kg7 e4 Qc1 Nd5 Bg2 Nb4 Nh7 Rc5 Bf6 N8a6 b8Q Rb2 b7 Na2 Qe1 N6b4 Na3 Bg4 c8Q Qb6 Qa7 Bh5 b8R Qc1 Rd1 d2 Nc4 Qa1 Kh6 Qc1 Bf1 Qg3 Bh8 Qa1 Rg1 h1Q Nf6 h2 Bh3 Qhg2 Kh7 h1R Qf5 Qg5 Qg4 Qh2 Qg2 Qhg3 Qgf1 Rh2 Qd7 Rh1 Qd3 Rh2 Qe3 Rh1 Rc1 d1R Rc2 Rh2 Rd2 Rh1 Rdd8 Rd4 Bd7 Rh4 Bh3 Rf4 Rg2 Rff5 Rg1 Rfd5 Rg2 Rd6 Rg1 Qh2 Rg4 Qhe5 Rf4 Qg3 Rf5 Qef4 Rd5 Qfg5 Re5
2B1K1n1/bB3PQ1/R1pq1P2/3b3r/2P3bq/bN2B1nN/1R2Qnp1/3k2nN b - - 0 1 illegal: No possible last move, all moves rejected
3q3n/Rp1q2P1/n2N4/NP1Pnq1b/Bp1Bnkr1/2Q1qQ1K/Q4R1B/4r3 b - - 0 1 illegal: No possible last move
1R1q1R1r/5bq1/n1Pp3N/r1r3b1/k1Q3q1/3PB1r1/qRp1Q1BP/1NKQ4 b - - 0 1 illegal: No proof kernel
1R3bN1/1b2qrBN/PpB1Pbkr/b4Q2/1n1q3r/2rQRKR1/1P1B2p1/8 b - - 0 1 illegal: No possible last move
1KBr1b1n/n1N2p1b/2QRrP1r/R3Q1r1/b1Pp1B2/n6P/2B2b2/2k3NR b - - 0 1 legal: proof: e4 a5 d4 h5 g4 c5 gxh5 d5 b4 axb4 Bh6 cxd4 Be3 d3 Bg5 d4 Bc1 Qd5 exd5 Bh3 Bg2 Be6 Bf1 Bc8 Kd2 Kd7 f4 Kd6 c4 Kc5 a4 b5 d6 g5 f5 e5 h3 g4 a5 g3 f6 e4 h6 b3 d7 Kb4 d8R e3+ Ke1 e2 Kd2 e1R h7 g2 a6 b2 a7 Ne7 Be2 Bd7 Rh2 Nbc6 Qc2 Ng6 Na3 b1B Bg4 Re6 Rh1 Rb8 a8B Na7 Qd1 Be8 Qf3 Kb3 Bd5 b4 Be4 Ba4 Rd6 Rd8 Nb5 Bc2 Nc7 Bb1 Ke1 Kc2 Kf2 b3 Bf4 Kb2 Kg3 d2 Ra2+ Kc1 Bc2 b2 Ra3 Nh4 Qc6 Ng6 Be5 d1R Bf4+ Rd2 Kf3 Re2 Bc8 Re6 Be5 Rd3+ Ke4 Rg3 Kd5 Rg5 Kc5 Nb5 Kb6 Na7 Bb3 Bf5 Kb7 b1N Kb8 Be4 Ra2 Na3 Bc2 Bd3 Nf3+ g1B Ra1+ Kb2 Bf4 Bf2 Ng1 Be4 Re1 Bf5 Re5 Bd3 Bh2 Kc1 Ra5 Rg8 Be5 Nh8 Bg3 R8g6 Bf4+ Re3 Rd7 Rh6 Rd6 Ng6 h8Q Be4 Qg8 Nh8 Qg6 Bf5 Qh5 Bh7 Bg3 Re4 Qe2 Ree8 Qe5 Re6 Bf4+
2k2bb1/B3r3/2Q1Ppnn/2Qn1P2/2p3B1/1B1qN1Rb/2rP1pNr/Q1RK4 b - - 0 1 illegal: No possible last move, all moves rejected
1b2bRq1/5B1r/3pQnPR/4BN2/r1Qp4/n3PP1b/Bpn1Nr1R/1k4K1 b - - 0 1 illegal: No proof kernel
n6n/Rn2N3/pp1b2r1/1rP5/1PQ1R1B1/3p1BR1/1qQKPNbb/Nr4k1 b - - 0 1 illegal: No proof kernel
Rb3nr1/B1B1P1N1/Kpb2P2/4bQ1B/3r1n1P/Rr1n3p/Qp1Q4/q1Nk4 b - - 0 1 illegal: No possible last move
2r5/2P1BNN1/pNB1pnrB/1P1p4/kb1qR2K/3Pb1Rn/5Q1Q/nr2b3 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 e5 hxg4 e6 Ba6 bxc5 b4 a4 Bb5 axb5 fxe6 Ke2 e5 Ke1 e4 c4 g5 f4 e6 Kf2 b3 Kg3 d6 h4 Kd7 d3 e3 h5 a6 c6+ Kc7 f5 Kb6 h6 b2 c7 e2 c8Q e1N f6 Nf3 f7 Ra7 h7 Nf6 Ne2 Nbd7 Nd4 Ng1 Qe1 Nh3 Ra4 Nc5 Nc3 b1R Nf5 Nb3 Ng7 Na1 Qb8+ Rb7 Rb4 Ka5 c5 Rc7 c6 Rg8 h8N Rc8 Qf2 d5 Rg1 Qb6 Re4 Qd4 Na4 Bb4 f8B Be1 Be2 Bb4 Nf5 Rg6 Nf7 Be1 Ng7 Bb4 Kg2 g3 Nb6 g4 Be7 Be1 Bh6 Bb4 Kh1 g2+ Kh2 Be1 Kg3 Bb4 Rh1 g1B Kh4 g3 Bh5 g2 Qh2 Be1 c7 Bb4 Qf1 Be3 Qf2 Bed2 Re1 g1B Re3 Be1 Rg3 Nc2 Qf5 Be3 Qff2 Na1 Nd8 Rg5 Be8 Rg6 Bc6 Bec3 Nd7 Ka4 Nf7 Be1 Nb6+
NQ1bR1rb/Q1P2R1P/n2n1RB1/1bQpr3/N3pp1q/2K1P2k/3n4/r5B1 b - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 axb5 cxd4 g4 g5 fxg5 hxg4 Kd2 f5 c4 Kf7 b4 Ke6 h4 a5 b6 d5 b5 g3 b7 d3 c5 g2 b6 a4 g6 f4 c6 Kf5 g7 Kg4 h5 e5 c7 a3 h6 a2 Nc3 Ra7 Nf3 g1R Na4 Ba3 Qc2 Na6 b8Q Qh4 b7 Nf6 Kc3 Bd7 Nd2 Rg8 Nc4 d2 Ncb6 Bb5 Na8 Ne8 h7 Rg2 Rg1 Nd6 Rb1 Re8 g8R+ Kh3 Rf8 Bc5 Rf7 a1B+ Bb2 Re7 Re1 d1N+ Kb3 Nc4 Bd4 Ndb2 Kc3 Nd2 Qc1 Re8 Bf2 Be7 Rh1+ Kg4 Bg1 Bd8 Rh3 Rg8 Rh2 Rf2 Bg2 Kg3 Be4 Rg2 Bg6 Nbc4+ Kc2 Bd4 Qa3+ Bc3 Qc5 Rf2 Rg2+ Kh3 Rg5 Bd4 Rgf5 Nd6 R5f6 Bb2 e3 e4 Rb1 Rg2 Ra1 Rg5 Rb1 Bc1 Kc3 Re5 Ra1 Nb4 Ra3 Ra5 Qba7 Na6 Rb3 Ba3 b8Q Bc1 N4b6 Ra1 Na4 Bb2+ Kc2 Be8 Rb6 Bc3 Re6 Bb5 Re8 Re7 Rc6 Bh8 Rb6 Re5 Kc3 Nb7 Rbe6 Nd6 Ref6
2b3K1/1PPn4/4R1Q1/Bpn4N/r1k1bnR1/p1p1bq1P/2RQ2rB/4N1rB b - - 0 1 illegal: No proof kernel
q1Qk4/1p3br1/1nRrBK2/1pRRn1P1/BP2rQ1b/2Q2Pb1/3N2p1/3n2N1 b - - 0 1 illegal: No possible last move, all moves rejected
q5Bn/4Q3/kn5R/Q1K1P2b/p1BNPpN1/p2r4/Nr1R1b1P/3rBn1q b - - 0 1 illegal: No possible last move
2qq4/1R4K1/1B3Bn1/nb1prpP1/1Q1b3r/1Q2pP2/NQRrPkN1/4B1b1 b - - 0 1 illegal: No possible last move
1b2QR1B/1Brq1bQ1/1bR2P2/1rp1qp1P/1p2RPNn/3Q3N/3Knr2/1k6 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 e5 d5 cxd5 f5 Bc4 Qd6 Bf1 Qf6 exf6 Ra3 Nf3 Ra7 Ng1 Ra8 d4 Kf7 a4 g5 h4 b5 f4 e5 d6 Ke6 d7 Kd5 d8R+ Ke4 d5 g3 a5 g2 a6 b3 a7 g4 h5 g3 d6 b2 d7 Rh7 Ra6 Ne7 Ra2 Ng6 Be2 Bd6 Qb3 Nh4 Ra1 Nc6 Kd1 Nd4 Bg4 Ne2 Nh3 g1B Ra6 g2 Ra1 Bb6 Qg8 Kd3 Nd2 b1R Nf3 e4 Ra4 e3 Qg7 c6 Rg1 Bb8 Re4 b4 Rf8 Rb2 d8Q+ Kc3 Qd5 Be6 Ne5 Bf7 Bf3 Rd2+ Ke1 Kc2 Ng4 Kb1 Qd3+ Rc2 Rf1 g1Q Bb2 Qh2 Be5 c5 Bd6 Qg1 Kd1 Qf2 Re1 Qf1 Re6 Qh1 Bb7 Qc6 Be7 Qd7 Bd6 B8c7 Be7 Rb8 a8Q Bd6 Bf3 Rb7 Qe8 Bb8 Bc6 Ra7 Rd6 Ra5 Bb7 Rb5 Rc6 Ng3 Qd4 Rf2 Qd6 e2+ Kd2+ Ka2 Rc1 Kb2 Rc4 Kb1 Re4 e1Q+ Kd3 Qg1 Qd5 Ne2 Kd2 Qg3 Bd6 Qa3 Qc4 Qa1 Qd3+ Ka2 Be7 Qe5 Qh6 Be6 Rf7 Qdd6 Bf8 Bc4 Bg7 Bd5 Qe3 Kb1 Bh8 Rg7 Rf8 Rc7 Qa3 Qd7 Qg7 Bf7+ Qd3+
1n1qk3/Rb1n3B/4Pp2/q1R1r3/2P1nP2/NQ2Q1RK/pB3bpN/1B4rb b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 g4 hxg4 a4 e5 axb5 exd4 c4 d5 e4 a5 f4 g5 Kf2 d3 Kg3 d4 h4 a4 c6 a3 e5 d2 c7 a2 b6 d3 b7 Nf6 h5 Bc5 h6 Ra5 h7 Nfd7 Rh5 f6 Qe1 d1N Qe3 d2 Bd3 Rg8 h8R Nf2 Na3 d1B Bb1 Bf3 Bb2 Bh1 R8h7 Ne4+ Kh2 g3+ Kh3 g2 Nf3 g1Q Nh2 Qe1 e6 Nc6 b8Q Bb7 c8B Bb6 Rg7 Re5 Rf7 Qa5 Rfh7 Ba6 Bb7 Bd4 Ba8 Bc5 Qb7 Ncb8 Qbb3 Bb7 Rg7 Ng3 Bh7 Ne4 Rg1 Ba7 Rg3 g4+ Kh4 Rb5 Rc5 Bb6 Rf3 g3 Rf7 Rg5 Kh3 g2 Rg3 Re5 Rc6 Rbd5 Rc5 Rd1 Rfg7 Rg1 Rf7 Ba6 Bc6 Bb7 Rfg7 Nc3 Bce4 Ba7 Bb1 Bb6 Rc6 Bd4 Rc5 Ne4 Qed3 Bf2 Qd4 Nb6 Rgc7 N6d7 Qde3 Ba8 Ra7 Bd5 Bd3 Bb7 Bb1
4br2/2KN2n1/k2p2R1/1rNPQN1q/1n2P3/2BqPpb1/1RQ1np2/QbB5 b - - 0 1 illegal: No proof kernel
n1qn1r1B/3rQRN1/b1bp1P2/3qQP2/6kp/PB5p/2KRN3/b2r1NB1 b - - 0 1 illegal: No proof kernel
6Nn/rR2nN1q/PP1brnk1/N2p4/2p1QR2/p6B/2K1BPb1/2Q1bqB1 b - - 0 1 illegal: No proof kernel
b4r2/1nR1q2p/b1Q2Pq1/NBbr1Nkn/1BK1p3/Q2p1N1P/1PB2r2/5R2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 c5 d4 cxd4 f4 f5 exf5 gxf4 Ke2 Kf7 Kd3 Kf6 c4 a5 g4 d5 h3 e5 b6 f3 c5 f2 b7 a4 c6 a3 c7 a2 Nd2 Bc5 Ndf3 Na6 b8N Qe7 Nh4 Bb7 Nc6 Rf8 c8Q Ba8 Bd2 Rf7 Bb4 Kg5 Qd7 Nf6 Na5 Rhf8 Qb3 Nh5 Rc1 a1Q Qa3 Qb1+ Rc2 Rf6 Qc6 R6f7 Be2 f1B Ngf3+ Kf4 Kd2 d3 Kc3 d4+ Kc4 d2 g5 d1R g6 e4 g7 Qa1 Ng1 Kg5 g8B Qb1 Rc3 Qc2 Bd3 Qg2 Rc1 Rd2 f6 Rf2 Be2 Rd8 Bd3 Rff8 Nf5 Rd5 Be6 Be2 Bd7 Qg4 Kb3 Bf1 Bc2 Bb5 Be8 d3 Rf1 Nb8 Kc3 Ba6 Rc1 Nd7 Nf3+ Kf4 Rhf1 Qg6 N3h4 Kg5 Kb3 Ne5 Kc3 Nf7 Bd7 Bc8 Kc4 Nd8 Nf3+ Kf4 Qb6 Ba6+ Bb5 Nb7 Qc6 Qg2 Rg1 Qg8 Rg7 Qgf7 Rf1 Qg6 Ng1 Kg5 Rf7 Qd8 Rc7 Qe7 Nf3+
5NQK/3NQP2/2bbr2Q/1bR1R1pp/1nrBP1n1/p1R3q1/4rP2/1B2qk2 b - - 0 1 illegal: No proof kernel
1bK4n/5PqB/r1P1pk2/2B2p2/R4RnP/2rBpr2/2Q1Nqb1/2NnQ2N b - - 0 1 illegal: No proof kernel
bB2r2n/1nrnkP2/P1RqQp2/BQ6/1N3b2/ppq3R1/3q1PK1/N1B3R1 b - - 0 1 illegal: No proof kernel
2N1Q2N/1Kn1P2Q/8/2Qp4/nNq1Rpr1/bq2p1n1/rP2Bb1P/3RB1kb b - - 0 1 illegal: No proof kernel
B1qq2rb/r2bP1NK/R2q1p2/P1B1pp1R/QP2n3/QR5N/2Q5/1b2k1n1 b - - 0 1 illegal: No proof kernel
Kn3q2/1Q2P3/P2B1pBk/3Pq1NR/3nBn1p/r1r3Q1/2p2bb1/N1RN3q b - - 0 1 illegal: No possible last move
5Nqn/1RQnpnr1/QPr2B2/1N1P4/B1NqPK1b/1B4p1/4p3/b1R3bk b - - 0 1 illegal: No proof kernel
R1Bqkn2/bQQP2K1/6N1/4rP1b/1p1p3q/P1b2Nn1/2r2p1B/R2R1Qr1 b - - 0 1 illegal: No possible last move, all moves rejected
2B3rN/3Pq1q1/2p1Q1Q1/N1b1R1np/Q1K2P1p/2n2bqR/6P1/1bBN2kr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kd3 Kd6 a4 Ke5 d6 Kf4 f3 Kg3 f6 Kf2 a5 b5 f4 b3 a6 b2 d7 c6 a7 b4 f7 b3 Ne2 Nf6 Ra3 Na6 Kc4 Nc7 d4 Nb5 d5 Nc3 d6 Nfe4 Nd2 b1Q Qc2 b2 Ra5 Qa1 Re5 b1B Nb3 Ng5 Na5 h5 Rh2 Rg8 Rh3 e6 Qa4 Qe7 d8N Rb8 a8Q Rb2 Nd4 Kg1 Nf5 Rf2 Bd3 Rf1 Ne3 Bd7 Qc8 Re1 Rf5 e5 Nd1 e4 Re5 e3 Bf5 e2 Bg4 Bdf5 Qe6 Bfe4 Qg6 Bf3 Bc8 Rf1 d7 e1Q Qe6 Qg3 Qg6 Bh6 f8Q Bg7 Qff5 Bf8 Nf7 Qd6 Rb5 Ne2 Qa3 Qg7 Rb7 Nc3 Qa4 Qdf6 Rb2 Bc5 Re2 Qe7 Re4 Re1 Re5 Kf1 Ne3+ Kf2 Nh8 Rh1 Nd1+ Kg1 Qfe6
kq4nK/2NP1r2/pR1Rr3/PB1q1bB1/1pnB3N/1b2Pq1Q/3p4/1N3Qr1 b - - 0 1 illegal: No proof kernel
K3kb2/1QQp4/R2Pq1bB/1B1P2Q1/1p3N2/RrqBp1n1/1b1P2q1/1N1r1n2 b - - 0 1 illegal: No proof kernel
B2b4/3pQ2P/q3bB1Q/2kr3B/2N2KRb/1r1pNP1P/1R4p1/rnqN2n1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 Ke2 a5 c4 e5 b4 Ke7 c5 g5 c6 Kd6 c7 e3 Kf3 e2 h6 e1Q h3 d3 b6 a4 b7 a3 b5 a2 b6 Ne7 h7 Nd5 Rh2 Kc5 Ne2 Nc3 Nd2 Nb1 Nc4 Be7 Qd2 Nc6 b8Q Bb7 c8B Ra5 Bb2 Qc1 Ne3 g4+ Kg3 e4 Nc3 Ba6 b7 Ne5 Be2 Nf3 Kf4 g3 Ncd1 Qb6 Bf6 Ng1 Bh5 Bc4 f3 Qa6 Qe5+ Bd5 b8N Bd8 Qe8 Be6 Bb7 Rg8 Rf2 g2 Ba8 Ra3 Qf7 Rb3 Nc6 Rg5 Na5 Re5 Nac4 Rd5 Nf5 e3 Qf8+ Kb5 Qe7 e2 Nfe3 e1B Re2 Na3 Rb1 a1R Rb2 Bf2 Nf5 Nb1 Re4 Bh4 Nfe3 Qd6+ Re5 Qa6 Rg5 Be1 Rg4 Bh4 Qg7 Kc5 Qh6 Qa2 Qc3 Qa6 Qe5 Bf5 Qe8 Be6 Qe7+
1N2K2R/kq1pPr1b/B2B1Q1p/2b1RQ2/3pB2q/4bP1n/1P2qn2/r3N2N b - - 0 1 illegal: No proof kernel
2Bqr1kb/3pP1p1/4Rp1R/2rB1N2/2n1qQPP/n2b2K1/N2nB3/1Rr4Q b - - 0 1 illegal: Other
B1RB1n2/2P4R/n2k3P/P2NQb2/Knr1BQ1p/2bNq3/4prqp/b6Q b - - 0 1 illegal: No possible last move, all moves rejected
qrQ1n3/1bPKR1bQ/3BB1p1/2QpP3/n1q2n2/2N1P3/1pk1N1R1/R3r2b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 b5 a4 d5+ Kf4 f5 e3+ d3 a5 b3 c3 b4 h6 b2 a6 b3 h7 Ne7 a7 Nd7 h5 Nf6 h6 Ne8 Rh2 Rb8 a8Q Bb7 Bh3 d2 Rg2 Kd3 c4 Rg8 Qe2+ Kc2 Nc3 b1B Ba3 b2 h8R Qc8 c5 Ng6+ Kg5 f4 h7 f3 c6 f2 c7 f1Q Qb5 Qc4 Bd6 Nf4 Nge2 d1N Be6 g6 Qaa6 Bg7 Qc5 Rf8 Rg8 Rf7 h8Q Rf6 Qh7 Rf7 Nb5 Nc3 Rf8 Na4 Nbc3 Rf6 Rf7 Qd8 Rd7 Rf8+ Re7 Rh8 Qg8 Rh1 Qh7 Rf1 Qac6 Re1 Qd7 Kb3 Qc8 Be4 Rg4 Bh1 Rg2 Kc2 Qh6 Bh8 Qh7 Ng7 Kf6 Qg8 Rd7 Ne8+ Ke7 Bg7 Kd8 Qh8 Re7 Ra8 Rf7 Nf6+ Ke7 Qg8 Qd7 Qb8 Qd8 Ne8 Kd7 Qa7 Re7 Rb8 Qc8 Qa5 Qa3 Qa8 Qc5
2R2n2/q1P1b1P1/p1K2Q1R/3nPqr1/1rnpQN2/1qk2bB1/Bp3BN1/4Q3 b - - 0 1 illegal: No proof kernel
b6R/2PBp2N/1r1p1BqR/P1rbqQP1/1r1p1Q2/1Bb5/1QK1N2n/1n3k2 b - - 0 1 illegal: No possible last move, all moves rejected
5bbB/B1pNR2q/1PN3Q1/1R1r2Qp/n1P2r2/NK1n2k1/1p1r1qP1/2Q2b2 b - - 0 1 illegal: No possible last move, all moves rejected
b4q1k/1bpPP2Q/1p2K2N/2PR4/1r1N1rR1/B1bR1BB1/r1q1Q1p1/1n4n1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 b4 axb4 e4 e5 fxe5 dxe4 Ke2 g5 Ke3 f5 h4 Kf7 d4 Kg7 a4 b6 c4 b3 d5 g4 Kd4 e3 c5 e2 h6+ Kh7 h5 e1Q a5 g3 e6 b2 a6 g2 a7 f4 e7 f3 d6 f2 Kd5 Bf5 d7 Qe3 Ra3 Bc2 Nf3 Qf4 Nd4 Bg7 Nf5 Nf6+ Ke6 Be4 Qe2 Nd5 Rd3 Rf8 Na3 b1R Nb5 Rb4 Nbd4 Qd2 Ba3 Kh8 h7 Nc3 Nh6 Nb1 Rh4 Qc2 Rg4 Qe8 Rg5 Nc6 Rd5 Rd8 a8R Rf4 Ra4 Ne5 Rd1 Qf8 Rd3 Rb3 Rc4 Nf3 Rb4 Be5 Ra4 Ra8 Rc4 Kg7 h8B+ Kh7 Bf6 Ng1 Bh4 Kh8 Bg3 Bg7 Nhf5 Ra4 h6 Rbb4 h7 Ra5 Nh6 Bf6 Bc1 Ra2 Ba3 Bg7 Qd2 Bf3 Be2 f1B Qe1 Be4 Bf3 Bf6 Qe2 Be5 Rd6 Ba8 Rd5 Bg7 Nb5 Bf6 Re4 Bc3 Nd4 Rf5 Rh4 Rf4 Rg4 Be1 Re3 Bc3 Qf2 Ba6 Qe2 B6b7 Rd3 Bc6 Rh4 Kg7 h8Q+ Kg6 Ng4 Bcb7 Qh5+ Kg7 Qf5 Kg8 Nh6+ Kg7 Rg4+ Kh8 Qh7+
2Bq1Q2/1p1R2Nn/1P1K1kn1/4ppb1/qQ3P1b/P2BNr1r/R1Rb4/B4q2 b - - 0 1 legal: proof: e4 d5 c4 dxe4 b4 a5 h4 g5 hxg5 axb4 Nf3 Bd7 Ng1 Bb5 cxb5 Ra6 Qh5 Ra5 Qd1 Ra8 Ke2 h5 Ke3 f5 Kf4 Kf7 Ke5 c5 g4 e3 f4 e6 d4 h4 b6 e2 d5 e1B g6+ Kg7 a3 b3 d6 b2 g5 h3 d7 h2 Nd2 b1Q Qb3 c4 Ra2 c3 Bb2 c2 Ne2 c1B Ba1 Bb4 Nc4 Be7 Ng3 Qc2 Qb4 Rh3 Ne3 Nf6 Bd3 Nh7 Rg1 h1Q Rg2 Bf6+ Kd6 Qa4 Rgc2 e5 Nh5+ Kg8 g7 Kf7 g8R Qf1 Re8 Bcd2 Ng7 Nc6 Re7+ Kg6 Rf7 Bh4 Re7 Rf3 Rf7 Qc8 d8Q Ne7 Qf8 Qd8+ Kc5 Nc6 Rd7 Rc8 Kd5 Ne7+ Kd6 Rc3 Ne6 Kh5 g6 Bfg5 g7 Kg6 g8B Rb3 Bf7+ Kf6 Ng7 Ng6 Qe8 Rb1 Be6 Re1 Qg8 Re2 Qe8 Rh2 Qh8 Rhh3 Qg8 Ne7 Qf8+ Kg6 Bec4 Qda8 Rc7 Qc8 Bb5 Qe8 Bd7 Qd8 Qe8+ Kf6 Qg8 Qf8 Bc8 Qd8+ Rd7 Ng6 Qf8+
1N1r2Q1/PRBq3n/1Q1b1q2/2B1BpPN/1n1RrP2/3kpb2/3n2pb/R1K5 b - - 0 1 illegal: No proof kernel
4Rbq1/PkbN2p1/1r3B2/p6P/NB1n1PBK/1p1rnR2/2bq1Q2/1R2nQ2 b - - 0 1 illegal: No proof kernel
1r2QR2/p1r2Q2/nk1N1PB1/2P2p2/1N2r3/PNQKp1q1/b4qR1/B3bnn1 b - - 0 1 illegal: No possible last move, all moves rejected
2RNrk2/pBb1Q1q1/P1rqq3/1B1PRpbn/PB3n2/N1N2np1/8/1K4Q1 b - - 0 1 legal: proof: g4 e5 a4 d5 c4 h5 cxd5 hxg4 f4 exf4 a5 Bd7 b3 Ba4 bxa4 Qd7 Kf2 Qe7 Ke1 Qd8 h4 b5 e4 c5 d4 g5 Kd2 f5 Kc2 c4 e5 c3 a6 f3 e6 g3 d6 g4 e7 b4 d5 b3+ Kd3 c2 h5 f2 h6 b2 h7 g2 Bd2 c1B Kc2 g3 Bh6 Nc6 Bg5 Ne5 Ne2 g1N Nec3 Ne2 Na3 Rc8 Kb1 Rc6 Bd2 Nf4 Bb5 Nf3 Qg1 f1Q d7+ Kf7 Ra2 Nf6 e8B+ Ke7 Rh4 Qe2 Rh6 Qb8 d8N N6h5 Rf6 Bh6 Re6+ Kf8 Re5 Qd6 Be1 Rg8 h8Q Bg5 Qh7 Be3 Bd7 Bb6 Bc8 Bc7 Qd7 Qe3 Bb7 Qd4 Re2 Q4e5 Ra1 Qee6 Re5 Rh8 Bf2 Rg8 Bc5 Rh8 Bb4 Rg8 Kc2 Rh8 Rc1 b1Q+ Kd1 Qa2 Rc2 Qc4 Kc1 Qd4 Kb1 Rg8 Re4 Qdf6 Re5 Qg7 Qh1 Bb8 Nc4 Rc8 Ne4 Rh8 Qg1 Kg8 Na3 Rc5 Ba8 Rc7 Rc6 Rc8 Nc3 Rc7 Rb6 Rc6 Rb7 Bc7 Rb8 Kh7 Bb7 Re8 Ra8 Kg8 Rc8 Kf8 Qe7+
bn1Qb3/pr2r3/P2B3R/1p1Bq3/1KR2Q1N/R1n1P3/1Np2P2/b1Bq1k1r b - - 0 1 illegal: No proof kernel
4RRn1/pbn3p1/2bQP3/rq1B2k1/1B1N2r1/RbBP1r2/P1q2p2/3NQ2K b - - 0 1 legal: proof: f4 c5 g4 h5 e3 hxg4 e4 e5 b3 d5 exd5 e4 b4 cxb4 Ba6 Bd6 Bf1 Be5 fxe5 Qb6 Be2 Qd6 Bf1 Qd8 Kf2 Ke7 Kg2 b5 h4 f5 c4 e3 c5 f4 h5 g3 h6 b3 e6 Kf6 h7 b2 c6 f3+ Kh3 b4 c7 b3 d6 g2 Kh2 e2 d7 e1Q Bc4 Bb7 c8Q Qe4 Qc6 Na6 Qd6 Qb8 Bd5 Qc2 Nc3 b1B Qe1 b2 Nge2 g1R Nd1 Kg5 Nd4 Rg4 Rg1 Bc6 Kh1 Qb5 Rg3 Rf8 d8B+ Rf6 Rh3 Nc7 Be7 f2 Ra3 Qg6 Bf8 Bc2 Rb1 Bb3 Be7 Bb7 Bf8 Qc2 d3+ Rff4 Be3 Ba4 Rc1 b1B Bd2 Bb3 Bc3 Rf3 Qb6 Ba4 Bfb4 Bb3 Be4 B3d5 Qd6 Bdc6 Bd5 Qb2 Qg3 Bc2 Qd6 Bb3 Rb1 Qc2 Rb2 Nh6 Rb1 Rhf8 h8R R8f5 Re8 Ng8 Rb2 Qc1 Re2 Qd2 Re4 Qc2 Rf4 Qc4 Be4 Ra5 Bd5 Qb5 Rff8
1b5q/p2PB1Qr/2Q2P1q/1b1prbq1/2RpBR1N/1nNPQ2k/4n3/3RK3 b - - 0 1 illegal: No proof kernel
R1N1n2B/7k/2RpN2p/2PQ4/QbqrB1n1/1PNbP3/3r1Rp1/bb1b2K1 b - - 0 1 illegal: No proof kernel
1kb3Nb/3N1QP1/p1Qr1R2/r1q1bp2/2bpQ3/3P2n1/BRK1n2P/1B3bB1 b - - 0 1 illegal: No proof kernel
4rn1b/1b1k1PRq/3p2Br/5n2/1rNP2pQ/4R1R1/p1PKN2r/2QQB1r1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 f5 axb5 fxe4 g4 hxg4 h4 a5 d4 e5 f4 g5 h5 d6 f5 a4 h6 e3 b6 e4 f6 e2 b7 g3 h7 a3 f7+ Kd7 Be3 g2 Bc1 a2 Rh3 g4 Nd2 Ra4 Re3 Rb4 Nc4 Nh6 Kd2 e1R Bd3 Bg7 Ne2 g1R Rg3 Re8 h8Q Nf5 Qh4 Bh8 Rb1 Qf6 Rb3 Qg6 Rc3 Qh7 c6+ Ke6 c7 Nd7 b8R Bb7 c8Q Rh1 Ra3 Rh2 Qcd8 Reh1 Qdg5 Nf8 Bb2 Rg1 Bc3 Kd7 Rb3 Re6 Qe3 Rh6 Re8 Ne6 Rg8 Nf8 Qeg5 Ng7 Qf4 Nf5 Rg7 e3+ Kc1 Ne7 Bg6 Nf5 Be1 Rf1 Rd3 Rg1 Nc3 e2 Rde3 Rb5 Kd2 Rb4 Bf2 e1R Ne2 Ref1 Be1 Rf3 Rd3 Re3 Qfg5 Re8 Rde3 Ne7 Qa5 Nf5 Qa3 Rb5 Qb2 Rb4 Qbc1
4Bk1n/KBp4N/4b3/2R1r2P/1b2Bqrp/1p4nP/Qr1QR2P/N2Q1r1r b - - 0 1 illegal: Other
4Qq2/pP1P2Rp/4K1bk/1BP1br1N/Bb2b3/1R3N2/rB4pQ/2bn1nR1 b - - 0 1 illegal: No proof kernel
2N2n2/ppBNk3/3Rp2P/n1n1R2B/5QPn/rbBr2nK/3q3P/3QbR2 b - - 0 1 illegal: No proof kernel
n2b1bQ1/n1N1RBrN/b2RK3/1rbB2P1/2P4p/p1p4P/5R2/B1r1Qqk1 b - - 0 1 illegal: No proof kernel
5rbN/1n1QnN2/bR1P3q/2QQ3R/3P1B1p/1P1pnk1K/p4b2/1B2b1rR b - - 0 1 illegal: No proof kernel
2knr3/7b/3ppR1B/PPr1QP1K/BQrbB3/qR1b1p2/6R1/1Nnb3N b - - 0 1 illegal: No proof kernel
1R6/3r1B2/1KpP1n2/2pbPNBR/1p4Q1/1bQnb3/nP3Bb1/2kN1rqR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 exf4 a4 d6 c5 dxc5 Bg2 b4 Bh3 Qd7 Bf1 Qb5 axb5 Ba6 Ra2 Bb7 Ra1 Bc8 Kf2 Kd7 e4 Ke6 h4 Ke5 h6 Kd4 d3 g5 h5 a5 h7 f5 b6 a4 b7 f3 h6 c6 Rh2 g4 Ra2 a3 Nh3 f4 Qa4 Nd7 b8R Ngf6 Ng1 Ne5 Ra1 a2 Qd1 Be6 Nc3 Bb3 Rh5 Ra7 Qe2 Bd6 Nd1 Rf8 h8Q Rd7 h7 g3+ Ke1 f2+ Kd2 g2 Qg4 Bd5 Kc2 f3 Bg5 Be7 Be2 f1B Qg7 f2 h8B Bd8 Bf3 Be2 Rc1 f1B Rb1 Nc4 Kb3 a1N+ Ka4 Ne5 Rc1 Be7 Ka5 Nb3+ Kb6 Bd6 Ra1 Nc1 Rb1 Na2 Ra1 Nf7 Rb1 Bf4 Ra1 Be3 Rb1 Ke5 d4+ Kd6 Rc1 Bec4 Ne2 g1Q Ng3 Bb3 Nf5+ Ke6 Be2 Ne5 Bc4 Nd3 Ra1 Bg2 Rc1 Bc2 Bb3 Bc4 d5+ Ke5 d6 Bd5 Bc4 Bb3 Rb1 Bg8 Bf7 Bd5 Nh6 Kd4 Nf5+ Kc4 Ra1 Kb3 Rb1 Kc2 Ra1 Ne8 Qd4 Kd2 e5 Bb3 Bhf6 Kc2 Be7 Nf6 Bh4 Bbd5 Bf2 Bb3 Be8 B8d5 Bf7 Ne4 Bg5 Nf6 Nc3 Kd2 Rf1 Kc2 Nd1 Kc1 Qc3+ Bc2 Nd4 Nh7 Bg3 Qh2 Rh1 Qg1 Be8 Rf1 Bf7 Nf6 B3h4 Ra7 Bf2 Rd7 Qe1 Ba4 Nf5 Bab3 Qc3+
q1nbB1n1/3rBN1n/1P3RP1/pQp1Q3/K4p2/R2b3k/rP4NB/2N2r1n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 d4 c5 Kd2 a5 Kc3 f5 Kb3 h5 e4 f3 g5 f2 e5 h3 d6 Ke6 g6 h2 b6 h4 d7 h3 Qh5 Bd6 Ra3 Nc6 Nd2 Ra7 Ka4 Be7 Bb5 f1R Ne2 Ba6 Nb3 Qa8 d8B Rd7 Bf4 Na7 Nbc1 Nc8 Bg3 Bf6 Be7 Rh7 Rg1 h1N Bh2 Nf2 Rgg3 Bh4 Rgf3 Ne4 Rf2 Nef6 Rf4 Rd5 Be8 Bd3 Qg5 Rd7 Qh5 Kd5 e6 Rh8 Rf2 Ke4 d5 Nh7 Nf4 Bf6 Ng2 f4 d6 Bg5 Rd2 Kf5 Qe2 Bf6 Qe5+ Kg4 Rd1 Rb7 d7 Bg5 d8N Rd7 Bg1 h2 Nf7 h1N Bh2 Kh3 Re1 Nf8 Re4 Rh4 Rd4 Nh7 Rd6 Bf6 Bf8 Bd8 e7 Rg4 Rc6 Rg3 Rf6 Rc7 Bc6 Re3 e8Q Rd7 Be7 Ree1 Na2 Rb1 Nc1 Ra1 Bb7 Rd6 Qb5 Ra2 Bc6 Rd5 Be8 Rd4+ Qb4 Rd7 Qb5
3Rrn1N/3q4/p2Q1P1b/K2B2p1/PnR2RQ1/N5r1/1rBnp1P1/1nkB2b1 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h3 g5 Bb2 Bg4 Be5 e3 h4 Bf5 h5 Bg6 hxg6 f6 Qe2 fxe5 Qd1 e4 f4 Kd7 c4 Ke6 d4 Kf5 a4 e5 d5 b5 d6 h5 d7 e2 Kd2 e1N Kc3 h4 Kb4 e3 g7 Ke4 f5 a6 f6 h3 Qh5 h2 Qh3 e2 Qh5 Kd3 Ra2 e4 Rc2 e3 Na3 Ne7 g8B Nf3 c6 Bh6 c5 Ng6 c7 Nf8 c8R Nd2 c6 Rh7 c7 Nc6+ Kc5 b4 Kb6 b3 Rc4 b2 Bd5 b1N Nf3 Rf7 Qg4 Nb4 Ka5 Rg7 Rg1 h1R Nh4 Rh3 Ng6 Rg3 Nh8 Qe8 d8Q Qd7 Qe7 Rg8 Rd8 Rb8 Rf4 Kc3 c8B Kb2 Qe5+ Kc1 Qd6 e1B Bd3 e2 Bc2 Rb6 Bd1 Bf2 Rh1 Bg1 Rh4 Na2 Bcb7 Rb2 B5b3 Nb4 B7d5 Nh7 Bbc2 Re8 Rc4 Nf8 Qh5 Ne6 Rhf4 Nf8 Qg4
1rb1R3/Bbk2NpP/q2p4/N3Qbn1/R1nPB2r/1R2P1QQ/K2p1b1r/8 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 a4 exf4 axb5 c4 Qd3 cxd3 Kd1 f5 c4 a5 b4 d2 Kc2 a4 Kb2 f3 h4 f4 b6 a3+ Ka2 f2 e3 f3 h6 Qc7 h5 Kd8 c5 Nc6 h7 Qh2 b5 Qg3 h6 Ne5 b7 Nf6 b8Q Qg6 b6 Ra5 b7 Ra7 c6 Ne4 Bg2 f1B Nh3 f2 Ng5 Nc4 Qg3 Be7 b8Q Bd3 Qbe5 f1B Bb2 d6 Nf7+ Kc7 Bf3 Ng5 Be4 Rb7 Bc3 Nb6 Bb4 Bg2 Bc5 Nc4 Ba7 Rb8 Rc1 Qf6 Rc3 Qf1 Rb3 Bh1 Nc3 Bd8 Ne2 Bf3 Nc1 Qe2 Bd5 Bdf5 Be4 Bg2 Rb4 Be7 Nb3 Bf3 Na5 Bh1 Kb3 a2 Rb1 a1R Rb2 Rg1 Ka2 Rg2 Ra4 Rh2 Rb3 Re8 h8Q Qf1 Qh7 Rh8 Qh3 Bf3 Qeg3 Bf6 Qg8 Be5 Qe8 Bf4 Qe5 Rh7 Qgg4 Bg3 Qgh4 Rh8 Qhf4 Bf2 Qfg3 Re8 h7 Re6 Rbb4 Rh6 Rb3 Rh4 Nh8 Kd8 c7+ Kd7 Nf7 Bg2 Bc2 Bgb7 Be4 Nb6 Rbb4 Qa6 Rb5 Nc4 Qef4 Bc6 Qe5 B8b7 c8R Bd5 Kb1 Bde6 Re8 Kc7 Rb3 Bec8 Ka2
3N2q1/n4P2/3n4/B1r1pbrQ/1b2rnR1/Pk2pP1B/2pr2QR/1B1R1N1K b - - 0 1 illegal: No proof kernel
B2n1Bnb/K4P1p/6Pq/5BNr/2RN1Q2/1br1n1Q1/pP1p4/R2k1nrQ b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 d5 f4 a5 g4 d3 b6 e5+ Kb5 h3 g5 h2 b7 d4 c5 d2 g6 Ke3 f6 e4 f5 d3 f7 a4 c6 a3 c7 a2 Kb6 Be6 f6 Bg7 f8Q Nc6 b8Q Bb3 f7 Qg5 c8B Qh6 Bf5 Nd8 Qa3 Ra5 Nf3 Rc5 Rg1 h1N Bg2 Ng3 Nc3 Nf1 Ng5 Kf2 Ne2 e3 Nd4 e2 Ka6 e1R Ka7 Bf6 Qh5 d1N Ba8 Nde3 Rg4 Rd1 Bfe4 Ke1 Qh1 Rd5 Qf4 Re5 Nh3 Rh5 Ng5 Bg7 Ndf3+ Ke2 Bf5 Re1 Nd4+ Kd1 Bfe4 Nd2 Qad6 Rg1 Qg3 Ndf1 Qdf4 Nf6 Rh4 Re8 Rg4 Ng8 Bf5 Re5 Bfe4 Rc5 Bd2+ Rc1 Bb4 d2 Bb1 Bh8 Bf8 Rc6 Nb5 Ke2 Qb8 Rd6 Rc4 Rd3 Nd4+ Kd1 Qbf4 Rc3 Bf5+
2nr1Q1K/1r1Pp3/Q3r1P1/1qbp2R1/QkN4n/1b6/2p1B2P/RnB2rNR b - - 0 1 illegal: No proof kernel
8/Qnbp3B/1pbk1NK1/1nPPR1P1/2rQRp2/N7/1n2B1rR/1r2rNq1 b - - 0 1 illegal: No possible last move, all moves rejected
1b1Rr1r1/n2pq1Pb/2R3B1/nP1nrNnp/4P2Q/2Bk3p/2Q1NR2/K5Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kd2 Ke7 b4 Ke6 c4 Kf5 Kc2 Ke4 Kb2 f5 g4 a5 g5 h5 e6 f4 g6 a4 c5 d3 b6 f3 g7 d2 c6 f2 b5 h3 e7 Nh6 e8Q+ Qe7 b7 Nf7 c7 Ng5 Qd8 Rg8 Rh2 Nc6 b8R Bb7 c8Q Na7 Nf3 a3+ Ka2 Ke3 Nh4 Be4 Bb2 Bh7 Bc3 Ke4 Qc1 d1N Nf5 Ne3 Rb6 Nc4 Rc6 Na5 e3 Rb8 Bc4 f1R Bf7 Re1 Rf2 Kd3 Bg6 Ra8 Qcc7 Rc8 Qg3 Ra8 Qb6 Re8 Qh4 Re2+ Bd2 Re1 Nc3 Re2 Kb1 a2+ Kb2 Re1 Qc7 Re2 Qg1 Re1 Rc1 a1N Ne2 Nc2 Bc3 Nb4 Ka1 Nd5 Qch2 Qd8 Rc8 Bd6 Rb8 Qe7 Rd8 Bb8 e4 Rd1 Be1 Rd2 Rc6 Rc2 Bb4 Rc5 Qhg2 Ne3 Bc3 Re5 Q2f1 Nd5 Qc1 Qd6 Qb2 Qe7 Qc2+
K3QNR1/1P2P2B/1N4B1/1r2rbn1/p6Q/2n1p1Pr/QbR2p2/kq2nnB1 b - - 0 1 illegal: No proof kernel
2b2K2/1pR2b1Q/1RPBRB1n/1r1kpPr1/6BQ/1brpq2P/7b/2N2N1n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 d5 Kf4 g5+ Ke5 b3 c4 e6 a4 b2 f4 g4 h6 g3 h3 d3 f6 g2 h7 d2 f5 d4 a5 d3 a6 Qe8 a7 Bd7 c5 Be7 Qe1 d1B Ra6 Bb3 Nd2 b1B Qh4 Bc8 Ne2 g1R Bb2 Rg5 Rb6 B1a2 Nc1 Nh6 Be2 Na6 Re1 Bf8 Nf1 Bd6+ Ke4 Bc7 Bg4 Bh2 c6 Nc5+ Kd4 Ne4 Re3 Rf8 h8Q Nf2 Kc5 Nh1 Bc3 Rfg8 Qh7+ Kf8 f7 Ke7 Re5 Kf6 Kd6 Rg7 f8B Rd7+ Kc5 Rd4 Bb2 Rc4+ Kd6 Rc3 Ba1 Bd7 Bb2 Rd8 a8R Bc8+ Kc7 Rd5 Bd6 Rb5 Ba1 Qf7+ Kd8 Qc7+ Ke8 Qb8 Rba6 Qa7 Kf8 Qf2 Re1 Qg3 Rb6 Qe3 Bc5 Ke5 Bd6+ Kd5 Re2 Rc4 Bf6 Rc3 Rb8 Bd7 Rc8 e5 Rg2 Be6 Rc7 Bc8 Bd1 Rh5 Rg6 Rg5 Bg4 Ke4 Qg3 Bf7 Qh4 Kd5 Bh8 Bc4 Re6 Bb3 Bf6
1Q2nQNB/1pB4p/2nn2k1/2bRpB2/NP2b2r/1bK1P3/2P5/rR1N1q1n b - - 0 1 legal: proof: h4 c5 d4 cxd4 Nc3 f5 Nb5 Na6 Nxa7 Nb8 g4 g5 hxg5 fxg4 Kd2 Kf7 a4 d5 f4 g3 b4 d3 f5 g2 e3 d4 a5 Nc6 f6 Be6 a6 Bb3 Rb1 Kg6 f7 Nf6 Qf3 Ne8 Nb5 Rg8 Nh3 g1N a7 Ne2 Nf2 Ng3 Bb2 Nf5 Rh5 Nfd6 Nc3 e6 Na4 Qf6 Nd1 Be7 Ke1 d2+ Ke2 Rg7 f8B Qf5 Bh3 d3+ Kf1 Rf7 Bh8 Qb5 Bfg7 Rf4 Be5 Rh4 Qf8 Qc4 Bd4 Qa6 Bb6 Qc4 Bc7 Qa6 Ndc3 d1N Ke1 Nf2 Kd2 Nh1 Nd1 Qb5 Kc3 d2 Bg4 Qf1 Bh3 Nf5 Bg4 Bc5 Bh3 Nfd6 Bg4 Rb8 a8Q Rd8 Qa7 Ra8 Qb8 Ra6 Nb6 Ra2 Na4 Ra1 Nf2 d1B Bh3 Bf3 Nd1 Nc8 Qh6+ Kf7 g6+ Ke7 g7 Kf7 g8N Ncd6 Rd5 e5 Bd7 Be4 Qf8+ Kg6 Bf5+
1b3RbN/PNR1r1n1/K1p1p1bb/4nP1n/3k1P1N/B2p1Qr1/1Q5q/2R2B2 b - - 0 1 illegal: No proof kernel
2Q3k1/1N3N1b/K5b1/2P1p1B1/1p2qpN1/PP2bn2/R2Q1B2/rRnrq1bB b - - 0 1 illegal: No proof kernel
1r2Bn2/2r1r3/1p1p4/1K2Pq2/pQ2P1N1/1QqR1Rnk/P3rBB1/N1b3Rb b - - 0 1 illegal: No possible last move, all moves rejected
n1q2N1n/2Q2qNn/p2r2Qp/3Q1P1b/K5Bk/bPR3nN/p1rBP3/R7 b - - 0 1 illegal: No proof kernel
B2Q1b2/1KN1bPr1/1Qn1Pk2/pb1pRb2/Rq2R3/2nq2P1/r2B1p2/B5N1 b - - 0 1 illegal: No proof kernel
q1B2K1R/N1b2pP1/N1kBB1P1/n3nrpb/3qRR2/4Qqr1/3P3p/3q3Q b - - 0 1 illegal: No proof kernel
2B1q1b1/b1KPP3/pR2q1pR/1Q2B2N/1R2k1rQ/4BNPb/r3np2/5b1n b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 Kd7 Kf3 Kd6 Ke4 c5 b4 h5 d4 h4 g3 f3 e3 h3 b6 c4 b7 g6 b5 c3 b6 f2 Qa4 c2 Ne2 Nc6 b8R Nh6 b7 Ng4 Nf4 Rh4 Ba6 f1B Nd2 Qe2 Nh5 h2 Nf3 f5+ Kf4 Be6 e4 Bg8 Be3 c1Q Rb1 Qcc4 Qb5 Qa4 Rb4 Nf2+ Kg5 f4 Kf6 Rg4 e5+ Kc7 e6 Bc5 e7 Kd7 d6 Qc4 Rg1 h1B d5 Bhg2 Rh1 Qcb3 Qc4 Nd4 Ke5 Qc6 Qb5 Ne2 Rh3 Qa4 Rh4 Nh1 Rh2 Qa5 Rh4 Qd8 Rh2 Ke8 d7+ Kf7 d6 Qe8 d8Q Bh3 d7 Qf6+ Kd5 Qe5+ Kc6 Ke6 Qda5 Kf5 Qaa4 Qf6+ Kc7 Qe6 Qc4 Bd4 Qab5+ Ke4 Rd8 Nf2 b8B Nh1 Bc8 a6 Ba7 Rb8 Bc5 Rb6 Bd6 Rb8 Be5 Rb6 Qa4 Rb5 Qab3 Ra5 Rb6 Ra2 Qbb5 Ng1 Rb2 Ne2 Rb4 Qf8 Ne1 f3 Re8 f2 Nf3 Qff7 Rf8 Qe8 Rf7 Bfg2 Rh7 Bf1 Rh6 Qf6 Qf7 Qf5 Qf6 Qe6 Rb2 Bc5 Qh4 Bd4 Rc6 Ba7 Rb6 Ng1 Rb3 Ne2 Rb4+
3Q1rr1/1bpp1RBn/1k2NQ1r/3P1rR1/3NPb2/2B2pn1/2K1BPq1/2Q1q3 b - - 0 1 legal: proof: d4 e5 c4 b5 cxb5 g5 h4 gxh4 a3 e4 Bf4 e3 Bxe3 Bxa3 Bc1 Bf8 Kd2 f5 b4 h5 g4 a5 e4 f4 b6 a4 d5 h3 g5 h2 b5 f3 b7 h4 b6 a3 g6 h3 g7 a2 Qc2 Nc6 b8Q Nf6 g8Q Ne7 b7 Nh7 Be2 Nf5 Qg7 Rg8 Qf6 Bd6 Na3 Ng3 Bb2 Bf4+ Kd3 Qe7 Bc3 Kd8 Qc1 Rf8 Rb1 a1Q Nc2 Rg8 Nd4 Qa5 Bb2 Qe1 Kc2 Rf8 Bc3 Rg8 Qa6 Qg5 Ne6+ Ke7 Qa1 Kd6 Bg7 Qg4 Qf6 Qg6 Bb5 Qg5 Ne2 Qg6 Rg1 h1R N2d4 h2 Be2 Qg5 Rg2 Rg1 Ra1 h1R Rh2 Qg4 Rh5 Rf8 Rg5 Rh6 Ra3 Ra6 Ra2 Rb6 Ra6 Qh3 Qa8 Qg2 b8B Bb7 Ba7 Rh5 Rg6 Rf5 Qad8 Rh1 Rg5 Rh6 Nc6 Rb5 Bd4 Ra5 Rb6 Ra8 Bc3 Rc8 Ra6 Rg8 Ra8 Rb8 Ncd4 Rc8 Nf8+ Kc5 Ra6 Ra8 Re6 Rb8 Re7 Ra8 Nfe6+ Kb6 Rf7 Rb8 Qde7 Rbf8 Qd8
b4q2/pRr4b/1r5N/2nbPp1p/R1Q1q1Qn/2bP2RB/1QK2kP1/2B4N b - - 0 1 illegal: No possible last move
1r1br1BQ/p3Bnp1/2RrP2b/2K1B1P1/3PR3/3pn2k/1Q4NN/qr3q1R b - - 0 1 illegal: No proof kernel
2nB1Rqr/k1pQ4/2PB3P/1n4Q1/5pqn/5PbR/2N1rN1p/KB2qR1r b - - 1 2 legal: proof: g4 b5 e4 h5 a4 g5 axb5 d5 h3 dxe4 Na3 h4 Nb1 Bf5 Rh2 Bg6 Rh1 Bh5 gxh5 g4 Ra6 gxh3 Ra5 Bg7 Ra1 Bf8 c4 Kd7 d4 Kc8 Kd2 Kb7 Kc2 e5 b4 f5 Kb2 a5 h6 a4 f3 a3+ Ka2 h2 b6 h3 c5 e3 b5 e4 d5 e2 d6 e1N d7 e3 Bd2 e2 Bf4 Nc6 Bd6 Nd4 c6+ Kb8 b7 Ne7 Qd3 Ka7 b8R Ng2 Qd1 e1Q Bd3 Qe8 d8B Nh4 Qd2 Qg3 Qg5 Qg4 Be4 Nc8 b6+ Ka6 b7 Nb5 Bc2 f4 Bf5 Be7 Be4 Ra7 Ra8 Bf6 b8Q Bd4 Bd3 Bf2 Bc2 Bg3 Bd3 Ne7 Qc8+ Kb6 Qd7 Nc8 Nc3 Qg8+ Nd5+ Ka6 Rb8 Rb7 Rf1 Ka7 Ka1 a2 Bb1 Rb6 Ne3 Ra6 Nd1 Ra3 Ne2 Re3 Nd4 Re2 Rhg1 h1R Nc2 h2 Rg2 Bf2 Rg3 Be1 Rh3 Bf2 Kb2 Bg3 Nf2 a1Q+ Kc1 Qa4 Kb2 Qb4+ Ka1 Qe1 Bf6 Ne7 Rf8 Nc8 Bd8
b2B2k1/b1rR4/Q3N2p/1KbrRR1n/QP2Bq2/1p4PN/qP2p2r/4Nq2 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a3 d5 cxd5 g5 Nc3 gxh4 Qf3 b4 Nb1 b3 Qg4 Nc6 Qd1 Nb4 axb4 Bf5 Qc2 Bh3 Qd1 Bc8 Ke2 Kf7 d4 a5 f4 c5 d6 e5 d7 e3 Kd3 c4+ Kc3 h3 g3 e2 f5 e1B+ Bd2 h2 d5 a4 d6 a3 f6 e4 Nh3 a2 Be2 e3 Rf1 h1Q Na3 Bf2 Bf3 e2 Be4 Bb7 Nc2 Ba7 Rf5 Qc7 d8Q Qf1 d7 Qcf4 Qa5 Bfc5 Ne1 Rd8 Qa6 Ba8 Bc1 Kf8 f7 Nf6 Qd3 Kg7 f8N Kg8 Ne6 Nh5 Qb5 h6 Qc6 Rh7 Qa4 Rg7 Re5 Rg4 Rb1 a1Q Qd6 Rh4 Qda6 Qa2 Be3 Re8 d8R Rf8 Rdd5 Rd8 Rbd1 Rd6 Rf5 Rd7 Rde5 Rd5 Nf2 Rh2 Nh3 Qh4 Rd4 Qf6 Bg5 Qf8 Kd2 c3+ Kd3 c2 Kc4 c1R+ Kb5 Rc4 Rf3 Qf4 Bd8 Rd7 Rd6 Rc7 Rd7 Rd4 Rf2 Rd5 Rf3 Qh4 Rff7 Qhf4 Rff5
1brRQ3/5rRn/K2Bp1b1/P2N1p1q/4QB2/5P1k/B1qPp3/qr1NN1b1 b - - 0 1 legal: proof: e4 a5 c4 d5 g4 dxe4 b4 h5 gxh5 b5 Ba3 Nc6 Bb2 Nd4 Ba3 axb4 Bc1 b3 Qg4 b4 Qd1 Nb5 cxb5 Qd6 Qe2 Qd7 Qd1 Qd8 Ke2 Kd7 a4 Ke6 h4 Kf5 b6 Kg4 a5 c5 b7 g5 b8B e3 h6 c4 h7 c3 h5 c2 h6 b2 Nf3 b3 Nc3 b1Q Qe1 b2 Bf4 Bf5 Nd1 e6 Ra3 f6 Rd3 Qe8 Rd8 Bg6 Bg2 f5 Kd3 Bb4 Kc4 Bd6 Rg1 Qa1 Qe2 b1R Ne1+ Kh4 Bd5 g4 f3 g3 Ba3 Bb8 Bad6 g2 Qd3 e2 Qe4 Kh3 Kc5 Qf6 Ba2 Ra7 Kc4 Rf7 Kc5 Rc1 Kb6 Rb1+ Ka6 c1Q Nb2 Ne7 Nd1 Rg8 h8Q Qc2 h7 Qa1 Bc5 Rgf8 Bcd6 Nd5 Qg8 Nf6 h8N Bh5 Ng6 Nh7 Ne7 Bg6 Rf1 g1B Nd5 Qe7 Rf2 Qg5 Rg2 Qh5 Qh8 Rc7 Rg4 Rc8 Rg5 Be8 Rg8 Bg6 Rg7 Rf7 Qe8
N2r3R/B1qpq1B1/Kbk1bnQp/1p4nR/5b1q/2PP1N2/1P4nR/3B1Q2 b - - 0 2 legal: proof: e4 g5 h4 gxh4 a4 b5 a5 f5 exf5 c5 d3 c4 Bg5 c3 Bc1 a6 Qd2 cxd2+ Kd1 Ra7 Ke2 Rb7 Ra2 Rb6 axb6 a5 Ra4 Bg7 Ra1 Bf8 f4 d1N g4 e5 c3 a4 b7 h6 f6 a3 g5 a2 g6 e4 f7+ Ke7 g7 Kd6 f5 h3 f6 h2 Nd2 e3 Nc4+ Kc6 Nb6 Qe7 Na8 Na6 b8R Nc7 Nf3 Bb7 Bh3 Ne6 Bg4 Ng5 Re8 Qc5 Bd2 Bd6 f8B Bf4 f7 Nf6 g8Q Qd6 Qg6 Qc7 Bg7 Rf8 Rc1 a1Q Rc2 Qa3 Bc1 Rh8 f8Q Qe7 Bd2 Rg8 Be1 Rh8 Bf2 Rg8 Qff7 Rf8 Rc8 Rd8 Bg1 Nf2 Rd2 Nfh3 Kd1 e2+ Kc2 e1B Kb3 Beg3 Ba7 Bf2 Bh5 Bb6 Qf8 Kd6 Kb4 Bd5 Re2 Be6 Re5 Bg3 Rf5 Nf4 Bg4 Ngh3 Rh5 Ng2 Qff7 Bf4 Qf8 Qb7 Rb8 Ng5 Qff7 Bg1 Ka5 Qc7+ Ka6 Bc5 Nd2 Bb6 Bd1 Kc6 Nf3 Ng4 Qff5 Nf6 Qh3 Ne3 Qf1 Ng2 Rg1 h1Q Rc8 Qh2 Rh1 Qh4 Rh2 Rg8 Rf8 Rh8 Rf7 Rb8 Rf8 Rd8 Rh8
n2b1R1q/p3qPP1/2K2k2/R4qrp/2B3p1/Pn1b1NBN/Q5BQ/2b2n1N b - - 0 1 legal: proof: g4 d5 h4 f5 b4 fxg4 e4 c5 bxc5 dxe4 Na3 b5 Qe2 g5 Qd3 g3 Qe2 g4 Nb1 Na6 Qf3 Rb8 Qd1 Rb6 Bh3 Rg6 Bf1 Rg5 hxg5 Bd7 Bd3 Be6 Bf1 Bc8 Ke2 Kf7 Ke3 e5 c4 h5 d4 g2 f4 b4 g6+ Ke7 d5 b3 c6 b2 f5 Nf6 c7 Nb8 d6+ Ke8 g7 Kf7 c5 Nc6 d7 Nd4 c6 Rh6 Qe2 Ba6 c8N Ba3 c7 Bd3 Nh3 g1N Nd2 b1Q Bg2 Ngf3 Ne7 Nh2 c8B Ne8 f6 Rg6 Rf1 Nc7 Ba6 Na8 Nf3 Qh8 d8Q Rg5 Qd6 Nb3 Nf5 Kg6 Bd2 Bc1 Ng3 Kf7 Nh1 Qc2 Kf2 e3+ Kg3 e4 Kf4 Qc5 Be1 Qcc8 Qd2 e2 Bg3 e1Q Bc4+ Qe6 Qd5 e3 Qe5 e2 Ke3 Na5 Kd4 Kg6 Kc5 Qf5 Qb2 Nb3+ Kc6 Qb4 Qa5 e1B Qf2 Qe7 Qg1 Bcd2 Rf2 Nf1 Qh2 Bf4 f7 Bed2 Rb1 Na1 Rb8 Bc1 Rf8 Kf6 Re2 Bfd2 Re5 Nb3 a3 Be3 Qd2 Bb6 Ra5 Bd8 Qa2
2R5/Rp2p1P1/B1qR2K1/qbp1r1Q1/1QkNnb2/4n2P/2n1PNqB/1B3b2 b - - 0 1 illegal: No proof kernel
2Q1BRq1/R1rp1PN1/Pq6/Q2qk3/5rR1/Bpn2N2/B2Pp2K/bn1n1r2 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 f4 Kf7 Kf2 Kf6 a4 h5 g4 e5 Kg2 c5 a5 c4 b6 c3 b7 b2 a6 e4 Kh2 e3 Bc4 c2 Qe2 b3 Bd3 h3 Ra4 h4 Nc3 b1N Nd1 Bg7 Nf3 Nh6 Ba3 Nc6 b8Q c1R Qc8 Na7 Rb4 Rc5 Rb7 Qb6 Rg1 Nb5 Ra7 Rf8 Be4 N5c3 Qb5 e2 Ne3 Rb8 Qa5 Rc7 Bc2 Rbb7 Bd3 Rc4 Rg3 Rbc7 g5+ Kf7 f6 Ke6 g6 Nf5 f7 Rd4 Nd5 Ne3 Rg4 Ned1 Ne7 Kf6 f5 Rf4 Ne1 Bh8 g7 Rf1 g8B Bg7 Qb4 Ke5 f6 Bh8 Nf5 Rf4 Kh1 h2 Ng7 Rf1+ Kg2 h3+ Kg3 h1Q Qa5+ Qd5 Kh2 Rf4 Bgh7 Rf1 Bhg6 Rf4 Kg3 h2 Bh5 Rd8 f8R h1Q Be8 Qh7 f7 Qg8 Kh2 Rf1 Qb7 Rb8 Qc8 Rbb7 Bf5 Rc4 Be4 Rbc7 Nf3+ Kf6 Rg5 Nb5 Bc5 N1a3 Bb1 Rf4 Ba2 Nb1 Nf5 Ke6 Rg2 Ba1 Rg4 N5c3 Bd6 Kf6 Ba3 Ke6 Ng7+ Kf6 Nd4 Ke5 Nf3+
2Nn1n1K/2n1BPp1/2Q2RB1/2pR4/R1Pb4/bb1rq2p/Q1P3Bn/1N1n2k1 b - - 0 1 illegal: No proof kernel
2QB4/b3N2Q/2rk2qp/2p5/1r2PR1n/NrP2n1P/2pnrB1Q/2K1R1rR b - - 1 2 legal: proof: a4 d5 f4 e5 c3 exf4 g3 b5 axb5 d4 Ra5 d3 Ra2 Bg4 Ra1 Bc8 g4 f5 Bg2 Be6 Bd5 f3 Bb3 f4 Bc2 Bf5 gxf5 dxc2 b4 Ke7 e4 a5 d4 g5 Kd2 h6 d5 g4 b6 f2 b5 f1R h3 f3 b7 f2 b6 a4 Ba3+ Qd6 Qe2 g3 Qh5 g2 Qf3 Re1 Qd3 Nd7 b8Q Ra6 b7 Ne5 Bb4 a3 Ne2 g1R Ng3 a2 Bc5 f1R Bb6 Qg6 Bf2 c5 Qa8 Rc6 b8Q Re3 Na3 Rb1 f6+ Kd7 f7 Ne7 d6 Nf5 Qda6 Nh4 Qa4 Be7 f8R Bd8 Rf5 Bb6 Q4a7+ Ke6 Q7b7 Ba7 d7 Rb2 Re1 a1N Q8c7 Nef3+ Kc1 Rb8 d8B Re2 Rf8 Rb5 Nf5 Rbb6 Qh2 Nb3+ Kb2 Rb5 Qh7 Nbd2+ Kc1 Rb3 Ne7 R8b4 Rf4 Kd6 Qc8
2n1n3/Q1NkN3/Qq1rRP2/3N4/prn2R1p/1B1n4/P3p2P/Kb1B1nBr b - - 1 2 legal: proof: e4 d5 b4 dxe4 f3 c5 bxc5 exf3 g3 f5 Bd3 f2+ Ke2 e6 Bc4 Bd6 Kd3 f4 Kc3 f3 Bf1 Bf4 gxf4 Qc7 Kb2 Qe7 Kc3 Qd8 Kb2 g5 c4 h5 d4 b5 d5 a5 c6 a4 c7 e5 f5 g4 d6 h4 c5 b4 c6 g3 f6 e4 Na3 g2 Be3 b3 Qd4 Ra6 Bc1 e3 Qd3 Bf5 c8B Ne7 Ne2 g1N c7 Nh3 Be6 Nf4 c8N Be4 Bfh3 f1R Nb5 f2 Nec3 Rc6 Bg8 Na6 Bg4 Nc7 Rb1 Rc4 Ka1 Rb4 Bd5 Rd1 Rf1 Rg8 Be2 Rg1 Bf3 Rh1 d7+ Kf8 Qc4 Bh7 Bg8 Rd6 Bb2 Be4 Rbe1 Bc2 Bd1 Nd3 Rg1 f1N Rg4 Rg1 Rf4 Rh1 Nb6 Qb8 Nc8 Qa7 Qc6 Qa5 Qa6 Qb6 Nca7 Nc8 Nc6 Ne7 Bc4 Nc8 Nd5 Kf7 Re2 Ke6 Nce7 Ne8 Bd4 Qd8 Ref2 Qb6 R2f3 e2 Bg1 Ne5 Re3 Bh7 Ree4 b2+ Kb1 Bf5 Bcb3 Bg6 Kc2 b1N Kb2 Na3 Ka1 Kf7 Re3 Bb1 Ree4 Nd3 Qa7 Qc7 d8Q Nc4 Re3 Qc6 Qda5 Qc5 Q5a6 Qb6 Rh3 Ke6 Nbc7+ Kd7 Re3 Ng7 Ree4 Ne8 Re6
2R1qQ2/1b2P3/pp1b3r/k3bK2/BPn3RB/Pr1Q2rR/pb1b2NB/N7 b - - 1 2 illegal: No possible last move, all moves rejected
2b3n1/2P1RB1p/4B1p1/Q1bN1QN1/1Rb2P1K/bq1nn1BP/2bp4/Rkr5 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 exf4 axb5 c5 g3 cxd4 Qd3 f3 Qd2 Nh6 Qd1 Ng8 Kd2 f5 Nh3 a5 Qe1 f2 Qd1 f4 Ng1 f3 Ra2 Ra6 Ra3 Rf6 Ra1 Rf4 gxf4 Ba3 Bg2 Bd6 Bf1 Bf8 e4 Kf7 b4 Kf6 c4 d5 e5+ Kf5 c5 Ke4 h3 a4 e6 a3 c6 a2 c7 d3 b6 g6 b7 d4 e7 Bg7 e8B Bd7 b5 Nc6 b8R Bf8 b6 Ne5 b7 Bc5 Qa4 Bc8 Qa5 Qd5 Bf7 Qb3 Bb2 Ba3 Bc3 Bc5 Bg2 f1B Ke1 d2+ Kf2 Kd3 Kg3 Kc2 Kh4 d1B Be1 f2 Nc3 d3 Bgd5 d2 Nf3 Bc4 Bde6 f1N Ng5 Nd3 Nd5 Ne3 Bg3 Kb2 Re1 Bc2 Ra8 Ba3 b8Q Bc5 Rad1 a1B Qbb5 Ba3 Rb8 Ka2 Qd7 Bd4 Rb4 Bc5 Qdb5 Kb2 Re2 Ka2 Ra1+ Kb2 Ra2+ Kb1 Nf3 Nh6 Qd7 Re8 Ng5 Ng8 Bg4 Nd1 Re7 Ne3 Qf5 Nf1 Rd7 Re1 Re7 Rd1 Qe4 Rc1 Bge6 Ne3 Qe5 Bb5 Qf5 Bc4 Ra1+
1N6/B1R3bq/7p/Qpb1rpkP/1PB2bqR/3bNr2/3n2QP/N2Bb2K b - - 1 2 legal: proof: f4 d5 g4 e5 c4 exf4 a4 Nd7 a5 Ndf6 a6 Nh5 gxh5 Qf6 cxd5 Qxa6 Bg2 Qa4 Bf1 Qa2 Kf2 Ke7 Kg2 Kf6 b4 g5 e4 b5 d6 a5 d7 c5 d8N f3+ Kf2 c4 Qc2 h6 d4 c3 d5 a4 d6 g4 d7 a3 Bd3 Qc4 Nc6 a2 Be3 Ra3 Ne2 g3+ Kg1 g2 Ba7 Kg5 d8Q+ Nf6 e5 Bc5+ Ned4 Re8 Nd2 Bf5 Rf1 a1B Be2 Bd3 Qa5 Ne4 Nb3 Nd2 e6 f5 e7 Qg8 Rd1 Qh7 Nb8 Bb2 Na1 Rb3 Qb1 c2 Qba2 c1B Re1 Bc3 Bd1 B1b2 Re5 Bd6 Rc5 Bf4 Ndc2 Bg7 Rc7 Bbc3 Kf2 Ra3 Re1 Rb3 Re4 g1B+ Ke1 Bc5 Ne3 Ra3 Kf2 Rb3 Kg1 f2+ Kh1 Ra3 Qd5 Rb3 Ng4 Ra3 Rc4 Rb3 Qg2 f1Q+ Qg1 Qe2 Qg2 Qf3 Ne3+ Qg4 Rd4 Rd8 e8B Rd5 Bf7 Re5 Re7 Nf3 Bc4 Be1 Rc7 Nd2 Re4 Be2 Nec2 Rf3 Ne3 Bd3 Nec2 Bfe3 Nb3 Qg3 Rh4 Qg4 Nba1 Bf4 Ne3
2QQ4/1BnNBq1k/3Q1p1p/1pbR2b1/1P2b1K1/b1qP1P2/1N2bN1r/r5R1 b - - 1 2 legal: proof: e4 d5 b4 dxe4 h3 a5 h4 axb4 c3 g5 hxg5 b3 Qf3 Na6 Qd1 Nb4 cxb4 Qd4 Ke2 Qd5 Ke1 Qd8 Ke2 e5 g4 c5 a4 b5 g6 f6 g5 e3 Kf3 e4+ Kg3 c4 a5 c3 a6 e2 a7 e1B g7 Kf7 Bg2 Kg6 Nh3 c2 Rg1 e3 Bb7 b2 Nc3 b1B Na4 e2 Nb2 Qd7 Kf4 Bc5 f3 Bh4 Nf2 e1Q Ra3 Ne7 Rd3 Qde6 Rd5 Qf7 g8Q+ Qg7 Nfd3 Bf5 Qd8 Qf7 Nf2 Bd3 Kg4 Be2 Qc8 Kg7 g6 Bg5 Qd8 Kh6 g7 Kg6 g8Q+ Kh6 Rd7 Nd5 Qge8 Nc7 Rd5 Kg6 Qd6 Kg7 Qc8 Kh6 Nbd3 Kg7 Bb2 c1B Be5 Kg6 Nb2 Be4 Qdd8 Kh6 Bd6 Kg7 Be7 Kg6 d3 Qc3 Qa4 Kh6 Qa6 Kg6 Nbd1 Ba3 Qae6 h6 Qed6 Rg8 Nb2 Kh7 Kg3 Bf4+ Kh4 Rg2 Kh3 Rh2+ Kg4 Rb8 a8N Bg5 Nb6 Ra8 N2c4 Bb2 Nd7 Ra1 Ba6 Bbc1 Bb7 Ba3 Nb2
3b2K1/n1QB1N2/2R2qnp/2BN2n1/np2B2r/p2qnr2/1PNQP2P/5k1R b - - 1 2 illegal: No possible last move
r1r3q1/pKnNrR1R/Rp1Q2br/P4r1B/1k1P3B/3Q1n2/Pp2q2B/1N6 b - - 0 1 illegal: No proof kernel
1k2K3/2r2QqB/1NP2p1n/P4nbp/BN2n1pP/Rqr3B1/1RQ1n3/4R1q1 b - - 0 1 legal: proof: f4 c5 g4 e5 b4 a5 d4 axb4 g5 b6 g6 Ba6 Nh3 Ke7 Ng1 Bc4 fxe5 cxd4 Be3 f6 Bc1 Bf7 gxf7 Ra3 Nd2 Ra6 Nb1 Ra8 Kd2 g5 Kd3 h5 Kc4 d5+ Kb5 Kd7 a4 Kc8 c4 g4 e4 d3 h4 d2 e6 b3 a5 b2 c5 d4 e5 d3 e7 Nh6 e8Q Nc6 e6 Ra7 e7 Rc7 Ra2 Kb8 Qc2 d1Q Ne2 d2 Na3 b1N Nc4 Bg7 Qd7 Qf8 e8B Ne7 Nc3 Nef5 Bd3 Qg1 Nd5 d1Q Ra3 Nd2 Nb4 Ne4 Bf4 Qb1 Bd6 Qb3 Bg3 Qg8 f8R Qh7 Ka6 b5 Kb6 Qg6 Rf7 Bf8 Re7 Qg7 Rh2 Rg8 Re5 Bd6 Re6 Bf4 Qf7 Bg5 Bd7 Rc8 Re5 Nc3 Re1 Ne2 Bc6 Ne3 Bh7 Nef5 Nd5 b4 Ba4 Qa2 Rg2 b3 Nb4 b2 Kb5 b1N Nb6 Nd2 c6 Qb3 Rf2 Re8 Kc5 Re3 Rh2 Nfd4 Kd6 Rc3 Rf2 Rc8 Ke7+ Rc7+ Ke8 Ndf5 Rff1 Ne4 Rb1 Bf4 Rfe1 Bg5 Rb2
nB5q/kqQ4R/p1p2r1B/3b1N2/1n2P1n1/q2QPKp1/1N2B1P1/Nnr1R3 b - - 0 1 illegal: No possible last move
N4k2/QRBB1pP1/K1n2PrQ/2r1Rp2/PQ5p/2qBnn1n/8/Nqr4b b - - 0 1 illegal: No possible last move
k7/r2Q1npq/3R1B1N/1br3nN/1PRQpKnp/P2rP2q/1r2Q1N1/3B4 b - - 0 1 illegal: No proof kernel
7R/1N1bRpk1/3bPQ2/1b1K1QnP/Qb1pNr1p/1BqP3n/1B1B4/5q1q b - - 0 1 illegal: No possible last move, all moves rejected
n1B4q/Q7/rB1qQpP1/Nr3Q1q/3qPR2/pp3Rk1/1P1NK1N1/1bb1b3 b - - 0 1 legal: proof: f4 b5 h4 g5 c4 gxh4 f5 d5 cxd5 Na6 f6 Nb4 Rh2 exf6 Rh3 f5 Rh1 f4 a3 Nc6 a4 b4 Qb3 Nd4 Qd1 Nb5 axb5 Bg7 Nf3 Bh6 Ng1 Bf8 d4 Ke7 g4 Kd6 b6 c5 e3 a5 g5 h5 g6 c4 b7 f3 b8N h3 Na3 h4 Kd2 c3+ Ke1 f2+ Ke2 b3 Kd3 h2 Bh3 f1Q+ Ne2 c2 Nc6 a4 Na5 f6 Qe1 Rh5 Nb1 a3 Nd2 Qg1 Nf4 Ne7 Ng2 Bf5+ Ke2 Ra6 Rb1 Be4 Bc8 h3 Qf2 Bh6 Qf5 Bf4 Ra1 Bg3 Rb1 Nc6 Ra1 Nb8 Rb1 Nd7 Ra1 Nb6 Qe6+ Kc7 d6+ Kb8 d7 Kc7 d5 Na8 Qf5 Kd6 Rb1 Qc7 d8Q+ Qd7 Ra1 Be1 Qb6+ Qc6 Qa7 Rg5 Qfd7+ Ke5 d6 Qc7 Qc6 Bf5 d7 Qd6 d8Q Rh5 Nb1 Rg5 Bd2 c1B Qdd7 Bc2 e4 Qgd4 Rg1 h1Q Be3 h2 Nd2 Bb1 Rf1 Rh5 Bf2 Rf5 Nh4 Kf4 Ng2+ Kg4 Be3 Kg3 Rf4 Rb5 Qf5 Qg1 Qcd5 h1Q Qde6 Qgh2 Bg1 Qh8 Be3 Qa4 Bb6 Q1h5+ Kf1 Qad4 Qaf7 Bf2 Ndc4 Bd2 Qa7 Bc2 Re1 Bc1 Nd2 Bb1 Re3+ Kh2 Ref3 Be1 Rf2 Qh4 Ke2 Kg3 Rf1 Q4h5+ R1f3+
rN1b3q/1kN2B2/pQ1n4/P3qn1n/pK2b1bp/P1P1BQR1/3N2R1/Q4b2 b - - 0 2 illegal: No proof kernel
k4r2/n1b1R3/q4Bp1/Pq1pRPpn/bRB5/1n2b1P1/nN2Q2K/5NQQ b - - 0 1 illegal: No proof kernel
Q2QRBk1/2P1K3/bp1R4/4P2q/6pr/qBB2pN1/qQ1nq1Pb/b5Nn b - - 0 1 illegal: No proof kernel
r2Nr1r1/n1k4K/1B1p1PBQ/1Qn5/RQRP1qq1/1r5b/1pp4P/1nBN4 b - - 0 1 illegal: No possible last move, all moves rejected
3Q1q2/r1NR2b1/1Pq3NQ/qqB3np/1pknP1B1/bR6/pPb5/1N4KR b - - 0 1 legal: proof: h4 b5 f4 g5 c4 gxh4 a4 e5 fxe5 d5 Kf2 dxc4 Qc2 a6 a5 Ra7 g4 Rb7 e4 Rb6 axb6 Ke7 d4 c5 e6 Kd6 d5 f5 g5 h5 e7 c3 e8Q c4 g6 Kc5 d6 a5 d7 f4 g7 f3 Qf7 a4 Ra3 h3 Qg6 h2 Qf7 Ba6 Qb3 c2 Nh3 c3 Ng5 Nh6 g8R Nc6 Qe8 Nd4 Bf4 c1B Be2 c2 Qbe6 Rh7 Re1 h1Q Re3 a3 Qf6 a2 Be5 Nf7 Bd1 Kc4 Rd3 Ba3 Ne6 Bh6 Rb3 c1Q Nf4 Ng5 Ng6 Bg7 Bd6 b4 Qee7 Qf8 d8N Qh3 Kg1 Qf5 Ne6 Qa5 Bc5 Qc3 Nc7 f2+ Kg2 Bb5 Qd8 Ba4 Rh1 f1Q+ Kh2 Qf5 Kg1 Qd7 Bg4 Qd3 Ne7 Qc6 Qh6 Qe2 Rd3 Bc2 Rb3 Qef3 Ng6 Q3f5 Be7 Qfb5 Bc5 Bh8 Na8 Rc7 Rg7 Ra7 Rd7 Bg7 Nc7
2NB2n1/1rknq1PN/2P3bp/3B2pq/qbRB3q/4p2P/QRb2Q2/1Q4K1 b - - 0 1 illegal: No possible last move
3k4/1Kn1N3/1b1Qq1bR/Np4pB/1R2p2q/2nbB2q/BQP1PqP1/r2R4 b - - 0 2 illegal: No proof kernel forced: bxLB
1qN4B/Q1Rb1Pn1/n5qP/pr2Rpr1/1k2p1nK/N2qN2Q/3QqP2/7B b - - 0 1 legal: proof: e4 f5 a4 c5 g4 b5 axb5 h5 d4 cxd4 e5 hxg4 Bh6 e6 Bf4 Be7 Bc1 Bf6 exf6 Qb6 Ra6 Qc7 Ra1 Qd8 h4 a5 c4 g5 b4 d5 h5 Kd7 c5 e5 c6+ Kd6 f7 g3 c7 g4 h6 d3 b6 d2+ Ke2 e4 b7 g2 b5 Kc5 b6 d4 Nf3 g1Q Nh2 g3 Ng4 d3+ Ke3 g2 Kf4 Bd7 Kg3 Kb4 c8N Nf6 Bb2 Na6 b8Q Ne8 b7 Ng7 Ne3 Rg8 Qa7 Rb8 Na3 Qf8 Qc1 d1N Rb1 d2 Kh4 Qe8 Be2 Qe1 Bf3 g1Q Rh3 Qe2 Bh1 Qg6 Bd4+ Ka4 Rb5 Qd3 Re5 Kb4 Nec4 Qe2 Rc3 Ne3 Qf1 d1Q Qh3 Ng4 Ne3 Qf8 Rc7 Qdd3 Bb2 Qfd6 Ba1 Ra8 b8Q+ Qb6 Qbb7 Rb8 Qba8 Qbd6 Bb2 Rb5 Qd5 Qb6 Ba1 Qb7 Qa2 Qb8 Qd2+ Qc3 Nac4 Ne6 Bf3 Qh7 Na3 Rg5 Rec5 Qg8 Bh1 Qg6 Qd6 Qcd2 Bh8 Ng7 Qd3 Qdd1 Re5 Qdc2 Qd1 Qcd3 Qd2+
KN1nkb1n/5N2/2npR1Np/4B2q/n4rB1/Q2P1qpQ/1PqQRr1P/8 b - - 1 2 legal: proof: g4 b5 a4 c5 axb5 f5 d3 fxg4 Kd2 c4 Ke3 Bb7 Kd2 cxd3 Ke3 d2 Kd3 Be4+ Ke3 Bd3 exd3 Nh6 Ke2 Ng8 c4 a5 Ke3 Ra7 Ke4 e5 Kd5 g5 f4 a4 f5 a3 c5 d6 f6 Be7 b6 e4 c6 a2 b7 h6 c7 e3 c8Q e2 Nh3 e1Q Ng1 Qf2 Ne2 Ra4 Qe6 Qc8 Qe5 Qc2 Nf4 Rh7 Qe4 Rf7 Na3 Rf8 Qde1 d1Q Qf5 Qfe2 Rb1 a1N Nc4 Nb3 Bh3 Nd4 Ne5 Ne6 Qa5 Rf7 Re1 Nd8 Bd2 Qf2 Bc3 Qh4 Qc5 Qh5 Qa3 Re4 Rc1 Re2 Qc8 Rf2 Re3 Qde2 Re1 Qf3+ Re4 g3 Re2 g2 Bd4 Nd7 b8N g1N Bf5 Nc5 Qe6 Ndb7 Kc6 g4 Kb6 g3 Ka7 Na4 Ka8 Nh3 Bc3 Ng5 Nfg6 Rf8 Bh3 Nf7 Bf5 Nh8 f7+ Kd8 Bh3 Bh4 Qg4 Ne7 Qf5 Re8 f8Q Nc6 Qg4 Bg5 Qff4 Rf8 Qd2 Be7 Qe6 Rf5 Nf7+ Ke8 Bf6 Rf4 Qf5 Rf1 Re6 Rf2 Be5 Nbd8 Qg4 Re4 Qh4 Rb4 Bg4 Rf4 Rf6 Bf8 Qh3 Qb1 Re4 Qbd1 Re2 Qc2 Re6+
1N4R1/2p1B1Q1/P1R1b1Q1/r5bp/Q1P2p2/nqb1BqN1/kPbn2BK/2q5 b - - 0 1 illegal: No proof kernel
2R1r1R1/k2b1pr1/QbBpq2n/1Q3N1N/KN2PB2/1P4qQ/p2P4/3bqq2 b - - 0 1 illegal: No possible last move, all moves rejected
3Q4/1p2Br2/2k3B1/b4bN1/1Qr2Rq1/pPPP3R/1p1nqN1K/1bN2Rrb b - - 0 1 illegal: No proof kernel
1Bq3Q1/pq1pQN2/N2q4/bR1P1KRb/1B1k1bR1/P6q/rQ1Pp1rn/8 b - - 1 2 legal: proof: b4 f5 g4 fxg4 e3 c5 bxc5 h5 Qf3 h4 Qd1 h3 Bg2 hxg2 e4 Nc6 Ne2 Nb4 Ng1 Nd5 exd5 Rh6 Qe2 Rh7 Qd1 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 c4 e5 h4 g5 f4 g3 h5 g4 a3 b4 c6 b3 f5 b2 c7 Ba6 c8R Rb8 h6 Bd6 h7 Nh6 c5 Rg8 c6 Be2 Nh3 g1Q c7 g2 Ng5 g3 Rh5 Qh2 Qe1 g1Q Nc3 g2 Nb5 Qgh1 Nf7 Ng4 h8Q+ Rg7 Ra2 b1Q+ Rc2 Rb6 Rb8 Qc8 Bb2 Qg3 Ba1 Qhh3 Rg5 g1B Bc3 Be3 Bb4 Bf4 Qg8 Qbb3 Rc4 Nh2 Qc1 Rg6 Qb2 Bh5 Rd4 Rc6 Qf8 Rc2 Qe7+ Kg7 Rb6 Bc5 Rb7 Bb6 Rb8 Ba5 Rc4 Qb7 c8Q Qbc3 Rd4 Qc5 Nc7 Qd6 Qcd8 Qc3 Na6 Qcc8 Rc4 Qa8 Rb5 Qab7 Qb1 Ra2 Qb2 Qdc7 Bd6 Qcc6 Bb8 Qd6 Rg4 Rg5 Rc3 Rg6 Rcg3 Rg5 f6+ Kg6 Kd3 Kf5 Qg8 e4+ Kd4 e3 Rg1 Rg7 Kd3 Bh6 Rg5+ Kf4 R1g4+ Kf3 Kd4 Ke2 Ke4 Rg6 Kf5 Kd3 Nh8 e2 f7 Rg7 f8B Rg6 Nf7 Rg7 Rg6 Bf4 Rg5 Rg6 Qc2+ Kd4 Qb3 Re6 Qb1 Re3 Qc1 Rg3 Qb1 Rg2 Qb2+ Kd3 Bg7 Kc4 Bc3 Kd3 Bb4 Kc4 Qc2+ Kd4 Qb2+
8/1KQNpQ1B/3b4/3PBpN1/qb1q2r1/2nN1P1p/1b1qPRqk/2r1QR2 b - - 1 2 legal: proof: c4 d5 g4 dxc4 b4 a5 g5 axb4 g6 f6 h4 Be6 Na3 Kd7 Nb1 Bf7 gxf7 g5 Nc3 g4 Nb1 Na6 Qb3 Nc5 Qc2 Ne4 Qd1 Ng5 hxg5 Ra3 Qb3 Ra4 Qd1 Ra8 d4 Ke6 Kd2 Kf5 Ke3 h5 a4 c5 a5 b5 a6 h4 a7 b3 g6 c3 f3 b4 g7 g3 Ra3 c2 Ra2 g2 Bd2 c1Q Ra5 b2 Nc3 b1Q Na4 b3 Rb5 b2 Qb3 Qa2 Rh2 b1Q Qb2 Rc8 Rb7 c4 a8Q c3 Qb8 c2 Nc5 Qa4 Nh3 g1B+ Rf2 Bh2 Ra7 Bd6 Q2b4 Qe1 Q8b7 c1B Ng5 Bb2 Nd3 Rc1 Qc7 Qba2 Bg2 Qg1 Bc3 Rh6 Ra6 Rg6 Bh3+ Qg4 Rc6 Ba3 Qb1 Bab4 Ba1 Qd5 Rc2 Qc4 Rd2 Qc3 Rd1 Qe1 Bc3 Qg1 Rf1 Qg2 Qb2 Qdd7 Qd2 Qd8 Qe1 Qdd7 Ne5 Qd8 Kd3 Kf4 Kc4 Kg3 Kd5 Kh2 Nd3 Qf4 Bc8 h3 Bf5 Qd2 Be4 Rh6 Bh7 f5 Bb2 Rh4 Ba1 Rg4 Bc3 Nh6 g8Q Bg7 f8N Nf7 Nd7 Bh8 Ne6 Ng5 Qf7 Ne4 Ng5 Qa5+ Kc6 Qa4+ Kb7 Bg7 Bb2 Nc3 Qa5 Bge5 d5 Qb6+ Ka8 Qd4 Kb7 Ba3 Ba1 Bb2 Qb6 Bb4 Qc7 Bed6 Qb6 Qf6 Bg8 Ne4 Qg7 B2a3 Qf7 Qe5 Bd4 Bb2 Qc7 Nc3 Bh7 Qef4 Bg7 Qd4 Be5+
4bNR1/p2p1Q1q/Rqr1R3/2PQ4/rP4K1/B1n2r2/Q1pP1b1N/3Bkq1r b - - 0 1 illegal: No proof kernel
r2n4/b3Pp1N/Qp1bPPBQ/1b3b1n/2b2R2/1rB2Kp1/2Rr4/1N2kR1Q b - - 0 1 illegal: No possible last move, all moves rejected
R2K4/2pbn3/P1P2Q2/nkb3Rp/1NB1r1Nn/P1Bn1rQ1/nr2p3/4N1R1 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 f5 bxa5 d5 h4 dxe4 Rh3 Qd5 Rh2 fxg4 Rh1 g3 Ba3 g4 Bc1 Qg5 hxg5 Be6 Na3 Bf5 Nb1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 h5 Ke5 b5 d4 e3 c4 e2 f4 e1N a3 g2 f5 e6 d5+ Kc5 d6 b4 d7 b3 d8Q g3 f6 b2 f7 Bd7 a6 Rh7 g6 Rh8 g7 Ne7 Kf6 e5 g8N e4 Nc3 b1R Qg4 e3 Nh6 Nd3 Na2 Nbc6 Nb4 Rb2 Nf3 g1N Ne1 g2 Bd2 Nf3 Qg3 g1N Bc3 Ne2 Rg1 Nec1 Ng4 Na5 Rb1 Kb6 c5+ Kb5 c6 Na2 Rc1 Rc8 Rc2 Nh4 Rcg2 Rg8 Be2 Rg5 Bf1 Re5 Be2 Bh6 f8R Re4 Rg8 Bf8 Kf7 Nd5 Qf6 Bc5 Rf8 Rb8 Bf1 Rb7 Ra8 Ne7 Kf8 Rf2 Kf7 Rf3 Be2 Bf5 Ke8 Bc8 Kd8 Bd7 Bd1 e2 Bb3 Rf1 Rf2 Rb6 Rf5 Rf3 Bc4+ Ka4 Nbc2 Rb5 Rg5 Rb2 Bb3+ Kb5 Nb4 Be6 Bd5 Bd7 Bc4+
R1n2BNr/1bpPpb2/2R1N3/1nQ2rkB/n3p2R/r1PQ1rr1/4P3/1B2K3 b - - 0 2 illegal: No proof kernel
r1RrQr2/3pK3/r2R1r2/1p1P1pB1/B1qPn3/r1nQB3/1NbP4/4NQk1 b - - 0 1 illegal: No possible last move
1bb3N1/p2r2Q1/1n3NRP/rrQ2BR1/Pk1p2KB/nrN3n1/P1p5/Qr6 b - - 0 1 illegal: No proof kernel
1Q1n2n1/b3pnq1/r5B1/pRR3P1/2n3QN/1n1BP1B1/P1N2p1b/3NnK1k b - - 0 2 legal: proof: d4 b5 f4 g5 c4 gxf4 Bd2 bxc4 Bc1 c5 Nh3 c3 Ng1 c4 Qa4 a6 Qb3 Qc7 Qd1 Qd8 g4 Bb7 h3 Bf3 g5 Bg4 hxg4 a5 Qb3 Ra7 Qc2 Rc7 Qd1 Rc5 dxc5 Qb6 Rh4 Qc7 Rh1 Qd8 b4 h5 c6 d5 g6 f5 b5 f3 b6 h4 g5 f4 b7 c2 g7 Kf7 c7 Kg6 c8Q Kh5 Bd2 c1B Qh3 c3 Qb3 d4 Qb5 d3 Qb2 f2+ Kd1 f3 Be1 d2 Qb3 Nc6 b8N Qd4 Qf5 h3 Qd7 Kh4 Qb5 Kg3 Qdd5 h2 Qf5 Rh6 Qc2 Nd8 Qcf5 Ra6 Kc2 d1N Nd7 Nb2 Nf6 Bf4 e3 Nc4 Bd3 Kg2 Kd1 f1N Ng4 Ne5 Qb8 Nef7 Na3 Nd2 Bg3 c2+ Ke1 c1N Nf2 Nc4 Rb1 Nb3 Nd1 Bc7 Qfc8 Bb6 Nc2 Ba7 Qg4 Qb2 Ne2 Qd4 Rf1 h1N Ng1 Nf2 Rc1 Kh1 Rb1 Nf6 g8B Bg7 Bgh7 Ng8 Bhg6 Be5 Rc1 Bd6 Rb1 Qg7 Rb2 Nc1 Rb5 Nb3 Rc5 Ne4 Rb5 Nec5 Rf2 Bc7 Kf1 Bd6 Re2 f2 Nf3 Be5 Nh4 Bc7 Bdf5 Nd3 Rd2 Ne1 Rdd5 Bf4 Rdc5 Be5 Bd3 Bc7 Nf5 Be5 Bh4 Bh2 Bg3 Rc6 Nh4 Rd6 Rc8 Ra6 Rcc5
3nNR2/Kb1Q1Q1B/7b/2B2n1r/kR1n1p1P/1bP2P1N/1B1p2pQ/3rr1b1 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 hxg4 d4 c5 Bh6 cxd4 Bc1 d3 Ra3 d4 Ra1 Qd5 exd5 Ba6 Be2 Bb7 Bf1 Bc8 Kd2 Kd7 b4 a5 h4 e5 d6 f5 c3 g5 f3 e4 b6 Kc6 b7 Kb5 d7 g3 d8Q g4 Rh2 a4 Qf6 g2 Nh3 g1B Bb2 a3 Qf7 Nc6 b8B a2 Bd6 g3 Bc5 Bb7 Re2 g2 Na3+ Ka6 b5+ Ka5 b6 Rd8 Rb1 a1N Re1 Nh6 Nb5 Nc2 Nc7 Ka4 Ne8 Rd7 Re2 Nd8 Re3 Rg8 Re2 Rg5 Re1 Rh5 Be2 Ba6 b7 Bg7 b8Q Bb7 Qh2 f4 Ba1 Nf5 Rb5 Rd5 Bb2 Bh6 Qb1 Bc6 Qd7 Bb7 Qa2+ Na3 Rd1 Rd6 Qaf7 Nc2 Rb1 e3+ Kd1 d2 Bd3 Bg5 Ke2 Bh6 Be4 d1B+ Kd3 e2 Kc4 e1R Bd3 Ng7 Bg6 d3 Bh7 Be2 Rd1 Nd4 Rd2 Bd1 Re2 d2 Re6 Bc2 Rf6 Rd1 Rf5 Rc6 Kd5 Rc8+ Kd6 Ra8 Kc7 Bb3 Kb6 Rc8 Rf6 Ngf5 Ka7 Rb8 Qfe7 Rc8 Rf8 Rc6 Qg7 Re6 Qgf7 Ree1 Rb4+
8/N1p1r3/PBP1Q3/n4Q1b/R1Bnp2r/kr2BpPb/1n4Qb/2NRK2b b - - 0 1 legal: proof: e4 g5 b4 a5 h4 axb4 hxg5 d5 g3 Qd7 f3 Qg4 fxg4 dxe4 a4 Kd7 d4 Kd6 c4 h5 g6 e5 d5 Kc5 g7 f5 g5 b5 a5 e3 d6 h4 g6 e2 a6 h3 d7 b3 d8B Kb4 c5 b2 Bdg5 f4 Qd3 h2 Qe3 f3 Nd2 b1B Qd3 Rh4 Nb3 Bh3 Bd8 Ne7 g8Q Nf5 g7 Nc6 Qc2 Nfd4 Bdg5 Re8 Qgh7 Re7 g8Q Na5 c6 e4 Bb2 Ba2 Nc1 Bf7 Rb1 Bh5 Be3 Bg7 Bc3+ Ka3 Qe6 b4 Qhf5 b3 Bcd2 b2 Bf2 Nb5 Bb6 Nd4 Be3 Be5 Na2 Bd6 Nc3 Bc5 Rd1 b1R Nb5+ Kb4 Na7 Rb3 Qd2+ Ka3 Rb1 Rc3 Rb4 Rb3 Kf2 e1N Bc4 Rf7 Ne2 Re7 Rf1 h1B Nc1 Nd3+ Kg1 Re8 Qg2 Re7 Rd1 Nb2 Kf1 Nc2 Bd2 Bg1 Bde3 Nd4 Ke1 Bh2 Ra4+
1n1kr1N1/2bR1b1B/bp1QQp1r/1P2b1NP/3BB2Q/2n1P3/5rRp/4K1n1 b - - 0 1 illegal: No possible last move, all moves rejected
k2NB2b/PBp1Qbbn/2Rr4/3PQn2/KRP2r2/2p2b2/prN1nN1B/8 b - - 0 1 illegal: No proof kernel
n2N4/r2P1r1p/1brp1Pk1/2pn1Q2/6B1/2Q1R1Nb/nB1PnR2/K2bN2Q b - - 0 1 legal: proof: e4 b5 h4 f5 c4 fxe4 a4 g5 axb5 gxh4 c5 d6 c6 Qd7 cxd7+ Kf7 f4 e5 g4 c5 b4 a5 b6 a4 b7 a3 b5 h3 f5 h2 g5 a2 f6 e3 b6 e4 Qg4 e2 Bb2 Ra7 Qf3 Be7 Qg3 Bd8 Qe3 Kg6 Qc3 Ne7 Na3 Na6 b8Q Nc7 b7 Ned5 Bh3 Rf8 Bg4 Na8 Nc2 Bb6 Qc7 Ra6 b8N Rf7 Nc6 Bb7 Nd8 Ra7 Rb1 a1R Qc6 R1a6 Ra1 Ba5 Ra3 Bb6 Kf2 e1N Ke2 e3 Kd1 e2+ Kc1 Ng2 Kb1 e1N Ka1 Ngf4 Ne2 Ned3 Ne1 Nc1 Ng3 Na2 Rf1 h1B Rf2 Bg2 Rb3 Ndc7 Q6f3 Bh3 Qh1 Bbg2 Rf1 Ncd5 Qf3 Bc7 Rf2 Rc6 Rc3 Bb6 Re3 Ndc7 Qd5 Bf3 Qc4 Bd1 Qc3 Rg7 Ne6 Kf7 g6+ Kg8 Nd8 Ncd5 Ng2 Ne2 Ne1 Rf7 g7 Rf8 Ne6 Kf7 Nd8+ Kg6 g8Q+ Kh6 Qe6 Kg6 Qee5 Rf7 Qf5+
1b1b2Bn/PRB5/1n2r3/7Q/1P1Rnpp1/p2qNnQQ/K1b2P2/B1k1Nb2 b - - 0 1 illegal: No proof kernel
3bNBQ1/1pR5/nR2b3/KP1nrNR1/2P3b1/bBkpnQ2/1Pq1p3/3B1n2 b - - 0 1 illegal: Other
N4r1r/1PKp1n1q/p3N1b1/Q1P2Nr1/8/2B2nRn/PR3pQ1/1B1rknR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 c4 exf4 Bd2 bxc4 Bc1 c3 Be3 c4 Bc1 Bc5 dxc5 Qg5 Qa4 Qf6 Qd1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 b4 c2 h4 f6 b5 f3 b6 g4 h6 g3 h5 a6 h7 f2 h6 g2 Nd2 c3 Ngf3 g1R Rh3 Qc7 Nh4 Rg5 Nc4 Rf5 Qd2 Rg5 Nf5 Qh2 Rg3 Nc6 Bb2 c1N e3 c2 Bc3 Ne5 Bd3 f1N Qg2 Nf3 Rb1 Kf7 Kd5 Kg6 Kd6 Kh5 e4 Bb7 e5 Be4 b7 Ne2 e6 c1R e7 Rf8 e8N Neg1 Kc7 Nh3 Nb6 Rd1 Na8 Qh1 Rc1 Qh2 Bb1 Bc2 Nfd6 Kh4 Ng7 Bg6 Ne6 f5 Rc2 f4 Rf2 Ne1 Rd2 f3 Nf5+ Kh5 Qh1 f2 Qc6 Nf3 Qb6 Qh1 Qa5 Ne7 Rg1 Nc8 Rg3 Nd6 Rg1 Rhg8 h8Q Nf7 Qg7 Rh8 h7 Qh2+ Ng3+ Kg4 Qg8 N3e5 Nf5+ Kf3 Qg7 Rhg8 h8R Qh1 Rh5 Rh8 Rh4 Qh2 Rhd4 Qh1 R2d3+ Ke2 Rdg3 Nf3 Rd2+ Ke1 Qd4 Nf4 Qd5 Qh7 Qc6 Nh3 Qd5 Nh2 Qg2 Nf3 Rb2+
2b1B1n1/3r4/N2b1pbP/B1p2Pkp/2Q1KB1N/1QbQ4/b1nbP3/r1R4R b - - 0 1 illegal: No proof kernel
5nn1/1q1R1np1/2qNqNQ1/K2p1P1n/1p1P1kP1/n1B1r3/4b2B/1BN1R2Q b - - 0 1 illegal: No proof kernel
b2BR3/n1p3nN/K2n1q1B/2NB2QN/pr1P2p1/R1P3P1/1k2nq2/Q1q4n b - - 0 1 illegal: No possible last move
bKNBb1NQ/BQQ2pq1/5b2/PBp2PR1/1p2nq1k/1b6/q1Pnb3/5R2 b - - 0 1 legal: proof: g4 e5 b4 g5 d4 exd4 h3 a5 Be3 axb4 Nc3 h5 Bc1 b5 Nb1 h4 Qd3 Rh5 gxh5 g4 Qd2 g3 Qd1 Ra6 Qd3 Rg6 Qd1 Rg4 hxg4 Bc5 Bf4 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 g2 Kd5 d6 f4 d3 a4 d2 e4 b3 e5+ Kg7 f5 Kh6 e6 Kg5 e7 h3 e8Q h2 h6 b4 h7 b2 h8B Nd7 Kc6 d5 a5 d4 Qe4 d3 Na3 b1Q Nc4 Ngf6 Nh3+ Kh4 Nb6 g1Q Nf2 Be7 g5+ Qg4 g6 Qf4 g7 Qg8 Rg1 h1B Bb2 Qa2 Bd4 Nc5 Rg5 Be6 Nc8 Nb3 Kb7 c6 Qg2 Ne4 Ng4 Bf6 Ba7 c5 Nh6 Bc4 Qdf3 d1B Rb1 Qf8 g8Q d2 Qc3 Be6 Bb5 Qg7 Qd8 Bf3 Qc7 d1B Kb8 Bde2 Rf1 Nbd2 Q3e5 Bb3 Qe8 Nc3 Qf8 Ba8 Qb7 Nce4 Qg8 Qg6 Bg7 Qh7 Qh8 Qg8 Bf8 Qg7 Be7 Bg2 Bd8 Bgf3 Be8 Bb5 Bd7 B5a4 Bb5 Be2 Bc4 Bd7 Bb5 Be8 Ng8+
2K2NQ1/RNB2n1q/Qq1qN3/1pr1k3/b1R1ppqB/1P1BP1b1/2P5/b3b3 b - - 0 1 legal: proof: g4 e5 a4 b5 d4 h5 f4 hxg4 d5 e4 d6 Nc6 a5 Rb8 Ra4 Ne5 fxe5 Rb6 axb6 a5 Ra3 cxd6 Ra4 d5 Ra1 d4 Kf2 Ke7 Kg3 Ke6 Kf4 f5 h4 g5+ Kg3 d5 e3 d3 h5 d2 h6 a4 h7 d4 b7 d3 b8B a3 Nh3 a2 Nc3 Bb4 Na4 Nh6 Bc7 Nf7 Nc5+ Kd5 Rb1 a1B Nb7 Be6 Be2 Rg8 h8N Bc3 Qe1 d1Q Ng6 d2 Nf8 Qe7 Bd3 f4+ Kg2 g3 Rh2 g4 Ng5 Bd7 Nge6 Rg5 Rh7 Qd6 Qh1 Qb6 Qh6 Qe1 Qg6 d1Q Bd2 Ba5 Bb4 Rf5 Be7 Qb4 Qg5 Q4d6 Qg6 Be1 Bh4 Qc1 Ng5 Qd1 e6 Ke5 e7 Be6 e8Q Qc1 Qd8 Bb3 Nge6 Ba4 b3 Qb2 Rd1 Q2d4 Qe8 Qa7 Qg8 Qdb6 Qa8 Rh5 Bc4 Rf5 Rd4 Rg5 Bd3 Rf5 Kh1 g2+ Kh2 g3+ Kh3 g1B Kg4 g2 Rc4 Bgf2 Qc8 Bg3 Qa8 Qb8 Qa6 g1Q Rg7 Q8a7 Rh7 Ng5 Rg7 Kf6 Re7 Rc5 Rh7 Ke5 Re7 Kd5 Kf5 Nf7 Nbd8 Nh8 Bb8 Nf7 Nd4 Bh2 Rd7 Qg7 Rc7 Qa8 Ra7 Qgh6 Bc7 Bhg3 Nb7 Qdc6 Nd6 Qh7+ Kf6 Qab8 Ke7 Qc8 Nb7 Qg4 Nde6 Qd6+ Ke8 Qe5 Kd7 Qed6+ Kc8 Ke5 Be2 Qa5 Bf1 Qb6 Bd3
3nQ3/2B3q1/pKR1Qp2/3R2P1/2rNb3/np1R1B2/BNPkrpP1/5bbn b - - 0 1 illegal: No proof kernel
1nRb1NRK/2n2Npb/P1P2R2/BBQk4/r4p1r/3P3q/b2ppB2/r5Q1 b - - 0 1 illegal: No proof kernel
R4b2/2BpQ1q1/3NP2B/rp2nQPp/1R3KPp/1Q1Bn2b/1r2kn2/N6r b - - 0 1 illegal: No proof kernel
1Bqr2rQ/P1QB1nbr/1P3P1Q/1pR1Np2/3K4/1k1bp3/R1Rp4/1bN3n1 b - - 0 1 illegal: No proof kernel
3r4/PKp1nRb1/1PN1n1R1/k1pPNQ1B/N1p2n2/2r3qp/4QB1R/3b3b b - - 0 1 illegal: No proof kernel
1q1Q1r2/1Bq1rRN1/K1Qqb1p1/PPb5/R6n/1NQB2pn/1pP1p3/B5k1 b - - 0 1 illegal: No proof kernel
8/K3Qk2/3p1rp1/p1r1PRPQ/1p2N2R/1Nb4n/P1r2Qnq/2qBB1bB b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 exd4 Qd3 b6 Qd2 Bb7 Qd1 Bf3 h3 fxg4 Na3 g3 Nb1 Bg4 hxg4 Kf7 Bd2 Ke7 Bc1 Ke8 Kd2 h5 Kd3 a5 Kc4 g6 Kb5 g2 c4 h4 e4 d3 f4 d2 e5 d6 g5 h3 c6 h2 c7 Nh6 c8B Nd7 f5 Kf7 c5 Ng4 c6 Ne3 c7 Nf6 Nh3 g1B Nf2 Ne4 f6 Be7 Bg4 Rc8 Ka6 b5 Bg2 b4 Ka7 Rf8 Qf3 d1Q Nd2 Qe8 Nb3 Bd8 Bd2 Qc1 Be1 Qb5 Qh3 Qe2 Qh5 Qeb2 Bd1 Qbd2 Nd3 Nf2 Ndc5 Nh3 Bc6 Qf2 Ne4 Qh4 Rb1 Qg3 Rb2 Ng2+ Rf2 Qh4 Ka6 Qg3 Rf5 Bd4 Kb7 Bc3 Ka7 Qgf4 Rf1 Qg3 R1f4 h1R Rh4 Qh2 Ba8 Rf1 Bb7 Rf2 Bc6 Rb8 c8Q Rb5 Qa8 Bc7 Qd8 Rc2 Bb7 Ke6 f7 Bb6+ Kb8 Be3 Ka8 Rc5 Ka7 Bg1 Bc6 Rh8 f8Q Rg8 Qb6 Rh8 Qfd8 Rf8 Bb7 Rf6 Bc6 Rb5 Qf2 Kf7 Ned2 Ne3 Bh1 Rc5 Ne4 Ng2 Qe7+
1b2N2k/Q2Rr2r/Pn1p1n2/B2QqP2/Pp3r2/BpN5/Bq2p3/Qb4KR b - - 0 1 illegal: No proof kernel
N3BB2/6nP/QNKN4/Rp2RqQk/2brQq2/P1Pp2p1/p4bb1/3n2r1 b - - 0 1 illegal: No possible last move
1Nq5/rB2r1P1/R2K4/1Q3Ppq/Pk1n1Q2/1p1r1RNp/2pR4/3NBbbn b - - 0 1 illegal: No proof kernel
1Bn1R1R1/2b1n1Pb/QP1R4/2k1Kb2/1r3Q2/Np1rp3/pp1q1P1N/4q1BB b - - 0 1 illegal: No proof kernel
3kNnKN/1B3P1p/4rpQ1/1q1bB3/b2P4/3qpBR1/Qrp1Pn2/bN3R2 b - - 0 1 illegal: No proof kernel
QbR4B/RR2Kp2/rP6/pb4B1/2rNp2n/1QP2P2/k3pNn1/1qb1qB2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 hxg4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 a5 h4 g3 d4 g2 f3 e3 b6 e2 c6 Kc4 c7 Ra6 c3 Bd7 c8R+ Nc6 h5 Nf6 h6 e5 h7 e4 d5 Ba3 d6 Ng4+ Kf4 g5+ Kg3 Ne3 Nh3 g1B Nf2 g4 Kf4 g3 Rh4 Rg8 h8B g2 Ra2 Qc7 Rd2 Ne7 Ke5 Bh2+ Kf6 Bb5 d7 g1Q d8Q Ng2 Rd7 Nf5 Bg5 Bc1 Qc2 Qc5 Ra7 Bb8 Rcc7 Re8 Rcb7 Qb4 Rh1 Nfh4 Nd2+ Kc5 Qa2 Qb1 Nb3+ Kc4 Qc2 Re5 Nd4 Rc5 Ke7 Rc8 Nd3 Qf2 Qg8 Qe1 Nf2 Rc6 Qd1 Bh2 Qa8 Bb8 Nc2 Kb3 Nd4+ Ka2 Qb3+ Ka1 Rg1 Rc4 Be3 Nf4 Rg8 Nfg2 Bd2 Qd1 Rc8 Qe1 Qd1 Kb2 Bg5 Ka2 Qb3+
q1n2N1B/2bp1r1P/2NBR3/1RQq1rb1/6pp/kn4PP/1bpQ2B1/6KQ b - - 0 1 illegal: No proof kernel
4b1BR/n1qp2p1/2p4R/nrRr1p2/NPbP4/3QQ1BK/1k1q1q1P/1B2N3 b - - 0 1 legal: proof: b4 h5 f4 e5 c4 exf4 a4 b5 cxb5 Qf6 g4 Bc5 a5 Bb6 axb6 hxg4 Na3 Qe7 Nb1 Qd8 Kf2 Ke7 Kg2 Ke6 e4 Ke5 d3 Kd4 b7 a5 e5 f5 e6 f3+ Kg3 a4 e7 a3 e8B a2 b6 f2 Qe2 Ra5 Qd2 Nc6 b8R Nge7 b7 Rd5 Bh5 Na5 Bf7 c6 Bg8 Qc7+ Kg2 g3 Nc3 Nb3 Rb1 a1Q Na4 Na5 Rb3 Qa2 Rc3 Qb2 Rc5 Qc2 Qh6 Qd2 Kh3 g2 Be2 f1B Bd1 Qb6 Bc2 Qc7 Bb1 Be2 Ra8 Bd1 b8Q Ba6 Qb5 Bh5 Rd8 Nc8 Qe6 Qa2 Bf4 Na7 Bg3 Qc2 Rf8 Qd2 Rf6 Be8+ Rh6 Bc8 Qe2 Ba6 Qb6 Bb5 Qf1 Bc4 Nf3+ Ke3 Ne1 Kd4 Qe2 g1Q Qb5 Qge3 Rf1 Qg1 Rf3 Qf2 Re3 Bg6 Re8 Bh5 Nb2 Kc3 d4 Kb3 Rf8 Be8 Na4 Ka3 Nb6 Kb2 Qe3 Bb3 Qbd3 Bc4 Bh7 Bf7 Ra8 Rb8 Bg8 Be8 Na4+ Kc1 Be6 Rb5 Rb8 Bf7 Rbh8 Be8 Nc3 Kb2 Bf7 Qf3 Bg8 Qff2 Na4+
1Q1b4/1np1P1p1/p3brRB/PkP1B3/6n1/5QNq/N1pn2qr/2NBK1R1 b - - 0 1 legal: proof: f4 e5 c4 exf4 d4 h5 g4 Qe7 gxh5 Qc5 dxc5 b5 Bg2 bxc4 Bh3 Bb7 Bf1 Bc8 h4 f5 b4 d5 a4 Kd7 e4 Kc6 b5+ Kb7 b6 Kc6 h6 c3 h5 d4 h7 d3 e5 f3 b7 a6 e6 f4 h6 c2 Be2 Ne7 Nc3 Ng6 Na2 Ne5 Rh3 Ng6 Rg3 Ne5 Rg6 Be7 Rb1 Rf8 h8N Bd8 h7 Rf6 Nf7 Ng4 h8Q Bd7 Nd6 d2+ Kf1 f2 Ne4 Bc8 Ng3 Bd7 Bb2 Bc8 Be5 Bd7 Qe1 d1Q Rc1 Qd4 Qc3 Qe4 Bd1 Qg2+ Ke2 f1N+ Ke1 f3 N1e2 Qh3 Rb1 Nd2 Nec1 Kd5 Qf8 Nc6 b8B Na5 Ba7 Kc6 Bb6 Nb7 Ba5 Rb8 Bb4 Bc8 a5 Kb5 e7 Be6 Qb2 f2+ Ke2 Rf5 Ra1 Rh5 Qf3 Qg2 Rb1 Rh2 Ra1 Nd6 Rb1 Rb6 Ra1 Nb7 Bbc3+ Nb3 Bd2 Rc6 Bh6 Rd6 Qbc3 Nd2 Qd4 Rc6 Qd7 Qh3 Qc8 Rd6 Qb8 Rb6 Kd3 f1Q+ Kc3 Qfg2 Kd3 Nf2+ Ke2 Ng4+ Ke1 Bc4 Qf1 Rf6 Qf3 Be6 Nd3 Nc4 Be2 Nb2 Kd2 Kc4 Rg1 Kb5 Ke1 Nc4 Bd1 Nd2 Ndc1
KbRN2r1/1P1Q2Bb/B1pqq3/1k1P1pN1/5pnP/2r1R2n/3Qp1R1/2b1N3 b - - 0 1 illegal: No possible last move
b1rkq1N1/1p6/6RP/NPp1p1BQ/4nR2/2r2RpK/qn1N3P/1b1B2Qn b - - 0 1 illegal: Other
1N2q3/1bb4Q/1NQR2p1/1kpPbn2/p1R1B2R/P6p/4PrB1/B1nKb1r1 b - - 0 1 illegal: No possible last move, all moves rejected
2RbR3/1NQ1RK2/2p1Pp1r/1q1b1nN1/3kbNPQ/P4pB1/2p1B3/5rnb b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 dxc4 b4 e5 bxa5 exf4 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5+ Kh5 b5 g4 h6 d4 f3 e4+ Ke6 e5 Kd5 a3 f6 Kg6 c3 a6 b4 a7 h5 e6 c2 Ne2 h4 Kf7 h3 g6 h2 g7 b3 Bf4 Ne7 g8R Qd7 Bg3 Bb7 Nd2 Qb5 Qc1 Nbc6 Ne4 Rc8 a8Q Nf5 Ng5 Be7 Re8 Rh6 Qa7 Bd8 Qe1 Kc4 d5 Ncd4 d6 Bd5 Nf4+ Ne2 d7 Rb8 Qb7 Kd4 Rc1 Ng1 Qc8 Rb6 Be2 Rd6 Qf1 Rc6 Qh3 Rc3 Re7 Rd3 Qb8 Rd1 Qh4 Rf1 Rb1 c6 Qc7 b2 Re8 Be4 Rd1+ Ke3 Rd2 b1B Rd1 Be7 d8N Ba2 Rd7 Bad5 Nb7 Bd8 Rde7 Nh3 Rg1 h1B Rg2 Kd4 Rg1 Rf2 Rb1 Rf1 Rb2 Ng1 Rb4+ Qc4 Ra4 Qb4 Ra8 Qb5 Rc8
1Q5k/b1Np1R2/6bp/3rb2P/PBpbrQNB/2BR1q1N/1P1p1n1n/1K6 b - - 0 1 illegal: No proof kernel
KQ6/N2p1Q2/rr2Qpq1/1rRB4/3P1b1P/1Nr4k/1PnRNp1p/1Bn4b b - - 0 1 illegal: No proof kernel
4n1Q1/rp2r3/2QP1P1k/Nr1Bp3/b1pq4/R1PNR3/2pB1rQK/1b4nR b - - 0 1 illegal: No proof kernel
B2nrr1B/p1QRk2K/1bP3pp/PQ6/3Nq3/bP1pNN1B/4R3/2n3bb b - - 0 1 illegal: No possible last move, all moves rejected
1N1k3r/1qr1n2N/2npq1QR/B2P3N/2Q3Bp/1P3p1P/1r1p3R/B3b1nK b - - 0 2 legal: proof: e4 c5 d4 b5 a4 g5 f4 Bb7 axb5 Bd5 exd5 gxf4 Bd2 cxd4 Be3 Qb6 Bc1 Qd8 Kf2 f5 c4 a5 g4 e5 Kg2 h5 h3 h4 c5 a4 b6 e4 b7 e3 g5 a3 c6 a2 b3 d3 g6 d2 g7 e2 c7 e1R c8N Rh5 Qc2 Ne7 g8Q Ra7 Rh2 f3+ Kh1 f4 Bb2 f2 Be2 f1N Nf3 Qb6 Qc4 Kd8 Nc3 Qe6 Ng5 Rh8 Bg4 Nbc6 b8B Rb1 Ne2 Rc7 Nh7 f3 Bf6 Rb2 Qg6 d6 Re1 a1Q Na7 Bg7 Nf4 Qa6 Nh5 Qb7 Bd4 Be5 Re4 Ra2 Ba1 Bg3 Re5 Be1 Rf5 Rb2 Rf6 Ne5 Nc6+ Kc8 Nb4 N5c6 Na6 Kd7 Ba7 Kd8 Nb8 Ng3+ Kg1 Nef5 Bb6 Nfe7 Ba5 Ne2+ Kh1 Ng1 Qgc2 Qec8 Rh6 Qe6 Qg6
1r6/pRk3p1/Qb2b3/r1ppP3/R2PBQP1/R3Q2K/N2qNqn1/3b1Bq1 b - - 1 2 illegal: No possible last move
2Qn1qR1/Pp1n1qB1/1k1p1q2/1Pp4B/K4n1N/QBN2rbP/p3bR2/3N4 b - - 0 1 illegal: No proof kernel
1n1qNr1n/q1BQ1r2/bp3Ppp/2R2B2/1PN4R/K3Bk1p/4q2P/Q3R2r b - - 1 2 illegal: No proof kernel
r1Q5/1Pqn1k2/prR2PN1/1N5K/1pq2N2/2BQb2p/1PprB2Q/q1Rb4 b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a3 d5 cxd5 g5 Bd3 gxh4 Bf1 Nc6 a4 b4 Nc3 Nd4 Nb1 Nb5 axb5 Bg7 Ra6 Bh6 Ra1 Bf8 Ke2 e5 d4 c5 f4 h5 g4 a6 d6 e3 Kf3 e2 d7+ Ke7 g5 e1Q f5 c4 f6+ Kf7 b6 c3 b7 h3 d5 h4 Kg4 h2 d6 h3 Ne2 e4 Qd2 e3 Na3 Qc7 Nb5 Ne7 Nf4 Bh6 Kh5 e2 d8Q Ng6 d7 Ne5 Ra3 c2 Rc3 Qd1 Rc6 e1R+ Be2 Rf8 Qd6 Qd5 Bd2 Qc4 Bc3 Re8 Rg1 h1Q Qd2 Ra1 Rc1 Re6 Qh8 Qd1 d8Q Nd7 Qd3 Ra5 Qg3 Rd6 Qh2 Rd2 Qh7+ Bg7 Qd3 Bh6 Na7 Rb5 Qh8 Rb6 Nb5 Ne5 Qhd8 Bd7 Qb8 Be8 Qc8 Nd7 g6+ Kf8 Nd5 Be3 Nf4 Kg8 Kh4 Qf1 g7 Kf7 g8N Qd1 Ra1 Qb1 Ne7 Qba2 Rb1 Qa1 Ng6 Kg8 Nf8 Bh5 Ng6+ Kf7 Rc1 Bf3 Bf1 Bd1 Be2 Qb3 Kg5 Qc4 Kh5
2R5/1P2nQBN/p2r2rR/2p5/PnKNN1p1/P2rbQ2/kq2B2p/1q3Bq1 b - - 0 1 illegal: No proof kernel
1b1RQ2R/1N2rB2/3QRp1n/1BKPp1q1/bN5n/5PpB/1q2P1p1/2k1q2b b - - 1 2 legal: proof: c4 b5 g4 a6 b4 h6 g5 f6 c5 a5 bxa5 Ra6 c6 dxc6 Bb2 c5 Be5 c4 Bf4 Kd7 Be3 Rd6 g6 e6 Bg5 hxg5 Nf3 Kc6 Ng1 Rd7 Bg2+ Kd6 Bf1 Rf7 gxf7 Kd7 d4 Kc6 Kd2 Kd5 Kc3 Ke4 a4 c5 h4 e5 a6 b4+ Kd2 b3 Kc3 g4 a5 g5 h5 b2 a7 g3 a8B+ Bb7 h6 g4 a6 Nd7 h7 Nh6 a7 Qb6 Rh4 Bd6 f8R Bb8 Rd8 Nf8 Nh3 Ng6 Nf4 Re8 h8Q Re7 Na3 b1B Nd5 Bc2 Bh3 Ba4 Qe8 Bbc6 Rh5 Nh4 Nb4 Kf4 Ra2 Bh1 f3 Ke3 Nb5 g2 Nd6 g3 Bc6 Qb7 a8B Qb5 Kb2 c3+ Ka3 c2 Nb7 c1Q+ Rb2 Qa5 Bb5 Qd2 Ra2 c4 Ra1 c3 Rb1 Nf7 Rh8 c2 Rb2 Nh6 Rb3+ Kf2 Rc3 Qb6 Rc6 Ke3 Re6 Qe1 Bd3 Bc6 Bb5 c1Q+ Kb3 Qb2+ Kc4 Qa5 Kc5 Qa4 Qb1 Kd2 Qd3+ Kc1 Qa3 Qad1 Qa6 Bd7 Qd6 Qdd2 Na5 Bc7 Bd5 Qg5 Nb7 Bc6 Be4 Bd7 d5 Bb8 Bg6 Bc6 Bf7 Bd7 Bd3 Ba4 Bb5
RQ2qb2/n2B2BR/p1b4n/pn2pNbP/1P3q2/1p1RrQNk/1Q2P3/6K1 b - - 0 1 illegal: No proof kernel
1Q1r2b1/3R4/pp1B1N2/Q1q1Q1Kp/1N2Pr2/pP4PB/nn2q1R1/2kRr2q b - - 0 1 illegal: No proof kernel
5K2/1b2NQ2/R1Rp3B/1N2b3/1R1bB2q/p1nqp1pP/1r1PQ1P1/qnN3k1 b - - 1 2 legal: proof: c4 f5 e4 fxe4 b4 a6 a4 b6 a5 bxa5 b5 a4 b6 Bb7 Qc2 Bc8 Qb3 Nh6 Qd1 Ng8 Nc3 c5 Nf3 a5 Nb1 Ra7 Nd4 Rc7 Nf3 Rc6 Ng1 Rd6 Qh5+ Rg6 Qxh7 Rg3 Qf5 Rb3 Qh7 Rb5 cxb5 Ba6 Nc3 Bb7 Nb1 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Kg4 g5 Kh5 g4 f4 e3 b7 c4 f5 c3 h3 c2 b6 e2 Rh2 e1Q Ne2 e4 Ng1 Ke5 Kg6 Kf4 Kf7 Kg3 f6 Kf2 Bb2 c1B Be2 a3 Qg7 e3 Bd4 a4 Nc3 a2 Bd3 Bc5 Rh1 Bb2 Nge2 Ne7 Nc1 Nd5 Be4 Na6 b8N Nab4 b7 Nc2 Nc6 Na3 b8R Bb7 Ne7 Nb1 Nb5 Ndc3 Qg8 g3 Qg4 d6 Rc8 Qd1 Rc6 Qe2 Kg7 Re8 f7 Qd3 Bf6 Bd4 f8Q Be5 Kf7 Bd4 Bg7 Be5 Bh6 Bd4 Ng8 Qh4 Ne7 Rb8 Qe8 Be5 Kf8 Bd4 Rh2 Kg1 Qe2 Na3 Rb1 Ba1 Rb2 Nab1 Rb4 Bb2 Ra6 a1Q Rc6 a3 Ra6 Bc8 Qf7 Bb7+ Nc8 Na2 Nc3 Bh8 Rba4 Be5 Nb3 Ba8 Rc4 Rb4 Nb5 Bb7 Ne7 Bbc3 Nc5 Rb2 Nb3 Bcd4 Rb4 Qf6 Qg4 Kf2 Rh1 Qf4 Rc1 Qf6 Rc2 Kg1 Nc1 Qh4 Rcc6 Nac3 Qe2
1Q1qn3/Rp1kR1BP/4r1p1/Q3qbr1/2Bp2P1/1P4b1/p1r1Q1b1/2RN2KN b - - 1 2 illegal: No possible last move, all moves rejected
2n2R1Q/n1RpBbp1/2r1k1pb/1r2N1p1/B4n2/N2bN1P1/rR1P2P1/3K3Q b - - 0 2 illegal: No proof kernel
Q1QNbN2/3bRB1p/3Q2rr/4pp1P/R4Prp/4q2r/1r1PkB2/K2Rn3 b - - 1 2 illegal: No proof kernel
rB3rn1/3B4/1Qp3NQ/2Pp2R1/2P2p2/1p1PN1B1/br2R1r1/Rn1K1krq b - - 1 2 legal: proof: f4 e5 b4 exf4 g4 h5 gxh5 a5 c3 a4 Qb3 Bc5 bxc5 axb3 a4 f3 c4 b2 e4 Ke7 h4 Ke6 h6 Ke5 h5 Kd4 a5 f5 e5 b5 a6 g5 a7 g4 h7 g3 e6 f2+ Ke2 b4 e7 g2 e8Q Na6 h6 Rb8 Nh3 Qh4 Rh2 g1R Nc3 b1R Qe6 Rb2 Nd5 d6 Bg2 f1R Nhf4 Bd7 Qe8 Ba4 a8Q c6 Qh5 Bb3 Qa7 Nf6 Ng6 Nc7 Qb6 Ra8 Bh3 Rhf8 h8B Nb5 h7 Ba2 Bg7 b3 h8R Rf4 Rf2 Rg2 Kd1 Na3 d3 Nb1 Re2 Rf3 Bg5 f4 Bd7 Qh3 Bh4 Rf1+ Be1 Rfg1 Qh4 Qh2 Rh5 Qh1 Rhe5 Ng8 Qh6 Rf7 Rg5+ Rf6 Nb4 d5 Bf8 Rf5 Bd6 Rf6 Bb8 Rf8 Rd2 Ke3 Nc2+ Kf3 Ne3 Re2 Ng4 Kg2 Rc2 Kf1 Bg3 Rf2 Re2 Rfg2 Ne3+
1BR2bn1/2N1p1R1/1qBpK1NQ/1P1P1p2/3Qnk2/p1NP2n1/2r4n/1Q1b3b b - - 0 1 illegal: No possible last move
N1KB3B/pRp2b2/2p4b/Q1P2B1k/4r1n1/qpnP3P/RN5Q/1n1n1bN1 b - - 0 1 illegal: No proof kernel
8/Bb2Q1p1/6Q1/1nR1N1P1/b1KnN2b/b1Q1B3/p1RppPPk/1B1q2nr b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 a4 c5 Ke2 cxd4 Kd2 b5 axb5 Ra6 Ke2 Rg6 Ke1 Rg5 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 Ke2 Kf7 b4 Kg6 c4 Kf5 c5 d5 b6 e5 b7 h5 b5 h4 b6 e3 Kd3 h3 c6 e4+ Kc2 d3+ Kc3 d4+ Kb3 a4+ Kc4 d2 c7 a3 Bd3 h2 Qe1 d1B Ra2 e2 Be3 Nf6 Ra1 a2 Qa5+ Nd5 Nh3 e1B Qb5 Beb4 Na3 Ba4 Ng1 Nc6 b8B Bbd6 b7 Bg3 Rc1 Bh4 Qa6 Nc3 Re1 Nb5 Bb1 d3 Bc1 e3 Qb6 Ncd4 Nf3 Ke4 Re2 Bb4 Rf1 h1N Ba7 Ng3 b8Q Bb7 Rc2 Nge2 c8Q Ng1 Q8d6 Qd7 Ne5 d2 Qe7 Qg4 Bb2 Rh6 Rfc1 Qd1 Bc3 Bd6 Bb4 Rh8 Bc5 Rh6 Kb4 Rh8 Nac4 Rh5 Nf7+ Kd3 Nce5+ Ke2 Kc4 Kf1 Qh3 e2 Qc3 Rh8 Qc6 Rh5 Bcb6 Ba3 Qg6 Ngf3 Nd6 Kg1 Bc5 Kh2 Ne4 Ng1 Bcb6 Nb3 Be3 N3d4 Qgf6 Rh6 Qg6 Nc6 Qcb4 Bg3 Kc5 Kh1 Rc4 Ncd4 R1c2 Rh2 R4c3 Bh4 Rc4 Nh3 R4c3 Kg1 Rc4 Rh1 R4c3 Kh2 Rc4 Bb2 Qc3 Ng1 Kb4 Bc1 Rc5 Ba3+ Kc4
n1Rbn3/Q2p2RN/1b1nN2K/1ppr1P2/b1kP1B1N/4p1QP/4B3/1q4nB b - - 0 1 legal: proof: e4 h5 c4 b5 g4 hxg4 c5 f5 exf5 a6 Bc4 Ra7 Bf1 Rb7 b4 Rb6 cxb6 a5 Qf3 axb4 Qe2 Rh5 Qd1 Rh8 Ke2 Kf7 Ke3 g5 f4 e5 a4 b3 d3 g3 h3 e4 f6 Ke6 a5 Kd5 b7 b2 f7 g2 a6 g4 a7 g3 a8B Qh4 Nd2 b1N Qe1 Qh7 Qd1 Na6 b8Q+ Bb7 Ne2 g1N Ra5 g2 Qa4 Nf6 Nf3 Ne8 Ned4 Nd2 Be2 Be7 f8N Bd8 Nde6 c6 Nh4 Nac7 Qa3 Rg8 Qa7 Rg5 Ra4 Qf5 Nh7 Nc4+ Kf2 Ncd6 Ke3 Qe5 Rc4 Qb2 Rc2 Re5 f5 Qb3 Kf4 Qb1 Nc5 Kd4 Kg4 Rd5 Kh5 Bc8 Bb7 Na8 Ba6 Bb7 Bf4 Nf3 Re1 g1B Kh6 Be3 Rg1 Bf2 Rg7 Ng1 Qa5 Be3 Qc7 Bf2 Rd2 Kc3 Ne6 Bb6 d4 c5 Ra2 Bc6 Bb7 e3 Bh5 Kc4 Qcb8 Re5 Rag2 Be4 Be2+ Bd3 Rg8 Rd5 R2g7 Kb4 Qc7 Bc2 Bc6 Ba4 Rh8 Re5 Bh1 Rd5 Qc6 Re5 Qg2 Rd5 Qg3 Bf6 Nf3 Nec7 Rd8 Nce8 Rc8 Bfd8 Nh4 Kc3 Bd1 Kc4 Be2+
2Q1Bq1B/1nq2P2/1Nr1r1p1/3k2P1/3p2pb/Q1RP2Rp/qn2Q2q/N4KN1 b - - 1 2 illegal: No proof kernel
2qQq3/3R1rpB/2krbp1Q/1p3N2/1P1P1PK1/2r2p2/3R1Nn1/BBr3nN b - - 1 2 legal: proof: f4 b5 g4 d5 a4 e5 c4 h5 cxd5 hxg4 a5 e4 Qb3 Bc5 Qf3 Bb6 axb6 exf3 Kf2 Kd7 Kg3 a5 d4 c5 h4 c4 e4 f6 b4 a4 e5 c3 d6 c2 b7 a3 h5 a2 e6+ Kc6 d7 Qf8 d8Q Nd7 b8N+ Kb7 h6 Ra3 e7 Nb6 e8B Rc3 h7 Be6 Nd2 Na4 Bd3 Nh6 Beg6 Qe8 Ne4 Rf8 h8Q Rf7 Bb2 c1Q Bh7 Qc2 Rc1 a1R Ne2 Ra2 Kh4 g3 Ba1 g2 Rh2 g1R N2g3 Ng4 Rd2 Ne3 Nh1 Ng2+ Kh5 Raa3 Nef2 Rc6 Re1 Rd6 Nc6 Nc3 Ne7 Ne2 Nf5 Rc3 Kg4 Kc6 Rc1 Rf1 Re1 Qc1 Bb1 Ng1 Re5 Re1 Rd5 Rd1 Bg6 Qc2 Qh6 Rc1 Bh7 Qa2 Re5 Qa8 Re3 Qc8 Re4 Ba2 Re7 Be6 Rd7
Nq1B4/4qrRp/Qp4Pq/1K5P/P3R1Q1/qQ3p1N/1bnp1kn1/1B4Nb b - - 0 1 legal: proof: e4 a5 d4 g5 f4 d5 fxg5 c5 b4 axb4 Ke2 Ra5 Kf2 cxd4 Ke1 d3 Nf3 d4 Ng1 Rd5 exd5 Qd7 Qe2 Qd6 Qd1 Qd8 Kd2 Kd7 c4 Kd6 a4 Kc5 h4 f5 g4 e5 g6 f4 g5 b3 g7 e4 h5 e3+ Ke1 d2+ Ke2 b6 Kd3 b2 d6 e2 g6 e1Q d7 Nc6 Rh4 Nh6 g8Q Nf5 Nh3 Bg7 Nc3 Bb7 Qg4 Qb8 d8N Ne3 Ne2 Ng2 Neg1 d1Q+ Bd2 Qee5 Rc1 b1Q+ Rc2 Qdc1 Ne6+ Kd6 c5+ Kd5 Be2 Qbb2 Rc4 Qg5 Nc7+ Ke5 Qf7 Qe7 Na8 Rf8 Rc3 Qba1 Kc4 Ke4 Kb5 d3 Qb3 Nb4 c6 Qaa3 c7 Rf7 c8Q Nc2 Rc7 Bb2 Bb4 Bd5 Qa6 Ke3 Ra7 Bf3 Bd6 Bb7 Bc7 Bd5 Bd8 Qd2 Ng5 Kf2 Bf3 Qde3 Be4 d2 Bd3 Nge1 Bf5 Bh1 Be4 f3 N5h3+ Kf1 Rb7 Ng2 Rd7 Nb4 Bb1 Nc2 Rd6 Qh6 Rf6 Rf8 Rf7 Ke1 Rg7 Rf7 Qgc8 Kf1 Rf4 Ke1 Qg4 Kf1 Rc4 Ke1 Re4+ Kf1 Nf4 Kf2 Nfh3+
4q1n1/5RqQ/1Q2kB2/2KR1r1p/2p1q3/P2p1b1P/N1P2rbp/q1NBB1Q1 b - - 0 2 illegal: No proof kernel
r4q1N/BBqp2p1/K3R1n1/bR1PP1Q1/6PR/k1bnpp1Q/n6N/5B1n b - - 1 2 illegal: No proof kernel
2n3nQ/4nNq1/Rp1Bb3/1Q2q1R1/pP3Q1P/Kp4r1/2B1pP1B/3k1Nnr b - - 0 1 illegal: No proof kernel
1Rb3Rn/r3Q3/P2p1rnp/5RP1/1B3pK1/r3r2P/k1NN2Bp/2q1qB1Q b - - 0 1 illegal: No proof kernel
2K2RB1/b2NP2b/r2p4/P2k3p/1R1bq3/pq3rnQ/N1pP1QbB/5B1R b - - 0 1 illegal: No proof kernel
3NQ2r/1KpB1N2/R1nq4/Bb2b1P1/1p1P4/pkP3b1/2Q1QbRp/1B1r2q1 b - - 0 1 illegal: No proof kernel
1q5q/1pp2q2/1p3p1Q/rk1q1B2/1RN1RP1B/2PRn2Q/nP3rb1/N3N1K1 b - - 1 3 legal: proof: d4 g5 a4 e5 dxe5 Bc5 h4 gxh4 a5 Bb6 axb6 axb6 e4 h5 g4 d5 c3 Kd7 e6+ Kc6 e7 h3 e8R d4 e5 f6 e6 h2 e7 d3 g5 h4 g6 h3 g7 Rh7 Ra4 Na6 Bg5 Bf5 f4 d2+ Kf2 Bd7 Qh5 d1Q Qh6 Qb8 Nd2 Nb4 Nb3 Ra5 Nf3 Na2 Bh4 Qd5 Ne1 Qf7 Bd3 Bf5 Rg1 h1Q Rg3 h2 Na1 Bh3 Bf5 Qhd5 Rf3 h1Q Rd3 Qhe4 Kg1 Bg2 Qg5 Nh6 g8Q Qee6 Qh8 Qec8 Qg4 Rg7 Qh3 Ng4 Qh6 Rg5 Rh8 Qcg8 e8N Ne3 Nd6 Qgh7 Rc8 Qh8 Nc4 Kb5 Re8 Rg3 Re7 Rf3 Re4 Rf2 Rb4+
1B2R3/n3Qrpq/N1nKp3/p1P2Q2/n2p3R/5PNB/k2nr1P1/1b3qRB b - - 0 1 illegal: Other
1Q6/1rN3pk/1b1nB1P1/3b1rp1/1pP2R2/1N1nBP1K/bQ1p4/2rbRBQ1 b - - 0 1 illegal: No possible last move, all moves rejected
3n2QK/4B1pN/Q1br1pP1/R6p/1r1np3/N1kb1BQP/3PRb1r/2Br4 b - - 0 2 illegal: Other
1n4N1/nR4bK/2p1N1B1/np3PPQ/pBQ1N1k1/pPR1b2b/2r4n/1Q5r b - - 0 1 illegal: Other
2QNR3/2Qrb2b/nB2pR2/P3ppp1/Nb3P1k/1bBQ4/2nK2Pr/2r1R3 b - - 0 2 legal: proof: e4 b5 c4 d6 cxb5 a6 e5 dxe5 b6 Nc6 b7 Nb8 h4 g5 b4 Qd4 b5 Qd5 b6 Qd3 h5 Qg6 Bb5+ axb5 hxg6 Bf5 Nh3 Bd7 Ng1 Bc8 d4 h5 a4 c5 f4 c4 g7 h4 d5 b4 d6 h3 a5 c3 Qd3 h2 Qc4 b3 Qf1 c2 Na3 b2 Qa6 b1B Nf3 Nf6 g8Q Nd5 Nd4 Nb4 Nab5 Be6 Kd2 Bb3 Ne6 Ra7 Nc3 f6 Qe2 N8a6 b8Q+ Kd7 Bb2 c1B+ Ke1 Rh4 b7 Bh7 Qd3 Nc2+ Kd1 f5 Na4 Bd2 Bd4 Bb4 Bc3 Rh6 Kd2 Rh5 Qg7 Rh6 Qa8 Rh4 b8B Ke8 Qb7 Rh3 Bc7 Rh6 Qh8 Kf7 d7 Kg6 d8R Kh5 Bb6 Kg4 Qc6 Rd7 Qc7 Rh5 Rae1 Rh3 Re4 Kh5 Rc4 Kh4 Rg1 h1R Rc6 R3h2 Ra1 Rb1 Ra8 Rb2 Re1 Rb1 Rc8 Rc1 Qg8 Bg7 Rf8 Bh6 Rf6 Bg7 Qgc8 Bf8 Nd8 Ba2 Rf7 Bb3 Rcf6 e6 Rg7 Bfc5 Rg8 Be7 Re8
3b4/rp4bP/p3Q1n1/1R1p4/1PQ1R3/rNrPpNNr/2B1Qn2/4KBkb b - - 1 2 illegal: No proof kernel
1QrqB3/1Np3pR/1B2q1Pp/q3R3/3Nb1p1/PnB1R3/K3Qn1P/3n1k1n b - - 0 1 illegal: No proof kernel
2K1Q1k1/N1p1rpr1/1q6/B1Q1r1n1/1rR2R2/B1ppP3/N1PPn3/1nr1RB2 b - - 0 1 illegal: No proof kernel
b3Q3/b1KQn1B1/2Pppb1q/2RqP2p/q1NkpQ2/8/N2P4/1B1R1nRq b - - 0 1 illegal: No proof kernel
1b1r1B1K/P4QN1/nQb1r3/N1b1kB2/R2p1RP1/1B2p3/qp2pRpP/1n6 b - - 0 1 illegal: No proof kernel
3n3R/PP5B/nb1p1rb1/1pRKpN1k/2Q3PB/p1qB1r2/1QN1R1p1/6n1 b - - 0 1 illegal: No possible last move, all moves rejected
B2N3b/p3NPBr/2Rq1nK1/1k1QQn2/1P2R1p1/1pp1Pp2/rQ1n4/3b1R2 b - - 0 1 illegal: No possible last move, all moves rejected
3q1bb1/Nn3n1p/P1kPQB2/1pp4B/p2PK2Q/3p2Nr/2R1B3/q2Q2rR b - - 0 1 illegal: No proof kernel
B1R1rB1n/4p2R/K2Q1Pk1/1Q2rnP1/3p1B2/pR2bq1q/1b1P1pp1/6NN b - - 0 1 illegal: No proof kernel
1k1K4/3RRB2/1QpP2bR/2b1bnqN/pB3QNr/2p2P2/1pPp1N1n/4n3 b - - 0 1 illegal: No proof kernel
3Q2Qn/1p2pB2/N1p5/1P4r1/P1p1P2R/p1kn1R1n/1BNb2RK/b1bqQ3 b - - 1 2 illegal: No possible last move
6QR/Q6p/1Pb4P/p6K/2rNqNpB/p2B1QqN/Pn1p1q2/nk2r1R1 b - - 0 2 legal: proof: f4 b5 g4 c5 d4 cxd4 e4 e6 e5 Be7 Qd3 f5 gxf5 Bf6 exf6 Kf7 Qa3 Ke8 Qa4 bxa4 Kf2 Kf7 Kg3 a5 Kg4 d5 h4 g5 c4 d3 b4 d4 h5 e5 b5 d2 b6 d1Q+ Nf3 e4 h6 a3 c5 d3 c6 e3 c7 e2 Nd4 e1Q+ Be2 Qd6 Nd2 Bb7 c8Q Nd7 Rf1 Qc2 Qc7 Re8 N2f3 Qf2 Kh5 g4 Ng1 Bc6 Nh3 Ne7 Qa7 Ne5 Bd2 Rhg8 Be1 d2 Bd3 Nc4 Rg1 Nb2 Rc1 Qa4 Rc5 Rg7 Rd5 Qc7 Rd8 Nd5 Rc8 Re5 Rg8 Nb4 Rh8 Qh2 Bg3 Re1 Bh4 Nc2 Rg3 Rg8 Rg1 Ke8 f7+ Kd7 f8Q Na1 f6 Qf2 Qc8+ Kd6 f5 Kc5 f7 Kb4 f8Q+ Kc3 f6 Qcg3 f7 Qc4 Qca8 Qe6 Qfc8 Qe4 f8N Rg7 Ng6 Rc7 Qg8 Rc8 Be2 Rc7 Ngf4 Rc8 Nf5 Kc2 Nd4+ Kb1 Ba6 Bd5 Q8b7 Rc4 Qbf7 Bc6 Qd5 Qee2 Qf3 Qe4 Bb5 Rc2 Bf1 Rc4 Bd3+
b2R1BK1/RN2P1Q1/3N2p1/b2r3p/Ppq1B2P/1p1p3r/2nB3N/1Qqk2q1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d3 c5 d4 e5 Be3 Nc6 Bc1 Nce7 fxe5 cxd4 Nc3 f4 Nb1 Nf5 gxf5 Ra4 Qd2 Ra6 Qd1 Ra8 Kd2 Kf7 Kd3 b5 Ke4 h5 Kd5 g6 e4 b3 h4 d6 c4 d3 f6 f3 c5 f2 c6 d2 c7 Ra3 Bd3 f1Q Nc3 Qf4 Na4 Nh6 Nf3 Nf5 Nh2 Nd4 Nc5 Nc2 Nb7 Bg4 c8N Qc7 Qg1 Bf3 Qd4 Bg7 Rd1 Rd8 Qb2 Qg3 Qb1 Qg1 e6+ Kf8 e7+ Kf7 Qb2 Bh6 Qc3 Be3 Qe5 Bb6 Qb2 Ba5 Qb1 Bg4 e5 Bf3+ Be4 Bh1 Nb6 Qc3 Nc4 Qb4 Kc6 Ke6 f7 d5 f8B Rd7 Bf3 Kf5 e8Q Kf4 e6 Rd8 Ncd6 Ke3 Be4 Ke2 e7 Bg2 Qf7 Qc4+ Nc5 Bh1 Qg7 Rd7 Rf1 Bg2 Rf3 Kd1 Rd3 Ra4 a3 b4 Ra2 d4 Ra1 Rd8 Ra2 Rc8+ Kd7 Rc7+ Ke8 Bf3 Bf5 Ba8 Ncb7 Rc5 Be4 Rd5 Rf3 d3 Kf7 Ke2 Ra1 d1Q Bd2 Qc1 Kg8 Kd1 Rf6 Rf5+ Re6 Rf7 Re5 Rf3+ Rd5 Rh3 Nf7 Bc7 Rd8 Ra5 Ra2 Rd5 Nfd6 Nd4 a4 Ba5 Rc2 Qc8 Rc6 Nc2 Ra6 Qc4 Ra7
4QK2/3N1n1B/p3Rbpp/q2N2r1/1B3qpk/Pb1p2Pb/4RBP1/QR4n1 b - - 0 2 legal: proof: b4 c5 bxc5 e5 d4 exd4 Nd2 f6 Ne4 g6 Ng5 fxg5 Kd2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 d6 f4 h6 e4 b4 c4 d3 a3 b3 e5+ Kf5 c6 a6 c5 d2 e6 b2 c7 b1Q c6 Qb7 e7 Qa7 e8R Nd7 Ne2 Kg4 Ke6 d5 Kf7 d4 f5 Ngf6 Rb1 Bg7 Nf4+ Kh4 Re6 Nh5 f6 Ng3 Nd5 Re8 Bc4 d3 Rhe1 Qf2 R1e2 Qf4 Bb2 Ra7 Bd4 Rb7 Bf2 Rb5 Qf1 d1B Qh1 Bb7 c8N Qa5 c7 Bb3 Ncb6 Bc8 Qc1 Re7+ Kg8 Bh8 f7 Ne5 f8B Nf7 Nd7 Bf6 Qb2 Re8 Qa1 Re7 R6e5 Re6 Bb4 Re7 Re6 Rc5 Rc6 Re3 Re6 Rf3 Kf8 Rb5 Nb8 Bd7 c8Q Rc5 Rb6 Bh3 Nd7 g4 Qe8 Rb5 Nc7 Re5 Be6 Rg5 Nd5 Ne5 Bg8 Nf7 Rbe6 Re3 Rd2 Rf3 Bh7 Re3 Bg1 Ne2 Bf2+ Rg3 Rdb2 Ng1 Ra2 Bd4 Rae2 Bf6 hxg3+
2N3n1/1N1RQ3/1BB1b1kB/p1p5/1Q1Rp2p/2PpP3/P1qr1Qrq/4Kb1q b - - 2 3 legal: proof: f4 b5 h4 g5 g4 gxf4 g5 Bh6 g6 Bg5 hxg5 b4 Rh6 Nc6 Rh1 Nd4 Kf2 Nb5 Ke1 Nc3 dxc3 b3 Be3 bxc2 Bd2 Ba6 Bc1 Bc8 b4 d5 g7 f5 g6 a5 b5 h5 b6 c5 b7 e5 b8B f3 Na3 d4 Ba7 h4 Nh3 f4 Ng5 e4 Nb5 Nf6 g8Q+ Ke7 g7 Qd5 Qd2 Qf7 Bb6 Be6 Na7 Rd8 Qh7 Ng8 Nc8+ Kf6 Rh3 Qe7 Nf7 Qc7 Nfd6 Rd7 Qe3 Qb8 Nb7 f2+ Kd2 f3 Rb1 Qa8 Rb4 Qb8 Rg3 Qc7 Rg5 Qd6 Rd5 Qh2 Bh3 f1Q Qf2 Qfg2 Ke1 Qgh1+ Bf1 Rd6 Bh6 Rd8 e3 Rd6 Rb1 Kf7 Rd1 c1Q Qb2 Rd8 Qf2 Qc2 Rd7+ Kf6 Rc7 Rd5 Rd7 Rg5 Rd2 Rg2 Rd1 Ne7 Rd2 Rd8 Rd3 Kf7 g8Q+ Kf6 Qgg3 Ng8 Qe7+ Kf5 Qb8 Kg6 Rc7 Rd6 Rd7 Rd5 Rd1 Rd6 Qg1 Rd5 Bb5 Rd6 Bc6 f2+ Kf1 Rd5 Rd2 Rd6 Ke2 f1B+ Ke1 Rd5 Rd3 Rdg5 Rd1 Rd2 Qf2 Rg2 Rb1 d3 Rb4 Qg3 Rbd4 Qgh3 Qe5 Q1h2 Qd5 Qh1 Qc4 Q3h2 Qb4
3r1n1R/3p1Nrk/1ppN1Q2/1PR5/6B1/pb2b1B1/p2P1P2/rNKnQ1Rb b - - 1 2 illegal: Other
3QbR2/3nr3/1b2p2p/1Q1pbp1R/Kb1p1PN1/P1BPQ3/N7/1N1Bkbq1 b - - 0 1 illegal: No possible last move
2B5/N1P1Q1nk/1P1r1bNp/2K1p1b1/p2Npp2/1Qp4R/PB1n1Rr1/Q5q1 b - - 0 1 illegal: No proof kernel
8/Q4R2/K1pP1p2/2Qb1Pk1/pBN1np2/2rp2r1/pQnPq2B/RN3Nq1 b - - 1 2 illegal: No extended proof kernel
3Q1KR1/Bn4n1/qrr1q1Bq/1P2n3/b1k2pp1/5QP1/3b1P1N/Nb1BQ1Rr b - - 0 1 illegal: No proof kernel
b4N2/p6K/P3RBQ1/k1q2r1B/1q2p3/nrRNPQ1R/1P2n1qb/2Nbqq2 b - - 0 1 illegal: No proof kernel
b1R2b1k/1n1R4/1pQp2q1/N2P1Q1b/1P1Bb1Rr/2P1qr2/2BB1n1N/2Kn2b1 b - - 0 1 illegal: No proof kernel
3b2N1/p4nB1/Kn3qb1/PpR4n/QRb1QR2/2QP2nB/1P1N4/n3kqrr b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 e4 Ke7 Ke2 Kf6 Kd3 Kg5 Kc4 c5 Kb5 h5 g4 f5 a4 c4 e5 c3 e6 c2 d6 h3 d7 Kh4 a5 Kg3 e7 Kf2 e8Q h2 g5 h4 g6 f3 g7 h3 Ne2 f4 Bg2 Qf6 d8R Bf5 Rd5 Nh6 g8Q Bg6 Qc6 Nd7 Qc8 Be7 Qgd8 Nb6 Qc3 Nf7 Qdc7 Rag8 Nd4 Bd8 Rg1 h1N Re1 h2 Qb4 Ng3 Rc5 h1N Re4 Nh5 Nc6 N1g3 Ne7 Rg7 Qh1 Rh6 Qh4 Rhh7 Rec4 Ke1 Bh3 f2 Ng8 f1B Qa4 f3 Qe4+ Be2 Ra3 f2 Rb3 f1Q Rb4 Nf4 Bg2 Rh1 Bh3 Nfh5 Qc8 Nd5 Qc6 b6 Ka6 b5 Rd4 Nb6 Rdc4 Rh7 Qc7 Rg1 Qce5 Rh6 Qc3 Rh7 Qb7 Rh6 Rf4 Bc4 d3+ Kd1 Qca3 Ke1 Be3 c1N Nd2 Rh7 Qc3 Nb3 Qe4 Na1 Bd4+ Ne2 Qe7 Qh8 Rc7 Nf6 Bd7 Rhh1 Rc5 Nh5 Bh3 Qe5 Qb7 Neg3 Qa8 Qe7 Bg7 Qf6 Qe4+
1Bbq4/1qp2b2/N1r1P3/3p1k1q/RNR4n/2P2Qbr/bQ1P1n2/3BKRNb b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 g5 Ra3 gxh4 Ra2 Qe7 Ra1 Qd8 g4 Ke7 b4 Ke6 e4 f5 e5 a5 b6 h5 g5 a4 b5 h3 c3 f3 g6 f4 b7 h2 b6 h4 g7 h3 Ne2 a3 Bb2 a2 Ng3 f2+ Ke2 f3+ Ke3 Ne7 g8N Ng6 Ne7 Ra6 Nc6 Bd6 Na3 Nh4 Nb4 Nc6 Ne2 Kf5 b8R Rh7 Rg1 h1Q b7 h2 Nac2 Rb6 Na6 Nb4 Ra8 Nd3 b8Q Rc6 Ba3 Rh8 Rc1 a1Q Qb2 Qb1 Ncb4 Rh5 Bg2 f1B e6 f2 Bd5 Bg3 Bb3 d5 Rg2 Rh8 Ng1 Be2 Bc2 Bh5 Qf3+ Ke5 Ke2 f1B+ Kd1 Nf2+ Ke1 Bc4 Bd1 Ba2 Ra7 Bf7 Ra8 Bf4 Rg4 Bg3 Rc4 Rh7 Nc2 Rh8 Bc5 Rh7 Ncb4 Rh6 Qe3+ Kf5 Ba7 Qf3 Bb8 h1B Qa1 Qb3 Qb2 Qh5 Qf3+ Bf4 Nc2 Qb7 Ncb4 Rh8 Nc5 Rh6 Ra4 Rh8 Nca6 Rh7 Qe2 Bg3 Qf3+ Ke5 Rd4 Nf5 Rc4 Qg6 Ke2 Rh3 Bc2 Nh4 Rf1 Qh6 Ke1 Qh5 Qe4+ Kf6 Bd1 Kg5 Qe3+ Kf5 Qf3+
5n1N/Rrk3n1/B1NQ4/P5b1/p1RR1pKn/N4P1n/P1rrqB1q/2Q2b1b b - - 0 1 illegal: No proof kernel
1b3Q1Q/BP4qb/Bp3R1r/N2Np1nR/1P3bK1/1n2Pr2/2qn1rk1/2n1Q2N b - - 0 1 illegal: No proof kernel
2nR2nN/1R1npbk1/pR1q4/P2q3N/1n1rP1bK/1Q3r2/3PB2N/bq1QB3 b - - 0 1 illegal: No proof kernel
8/qNp3K1/bBb1rQR1/4Rrp1/N1BnQPPQ/2P1b1qn/1r4k1/q3R2q b - - 0 1 illegal: No proof kernel
3n2BR/rk5N/1Pn1prnn/1N3b1K/p1Qq1b1B/P1r1R2q/R3P3/5NQq b - - 0 1 illegal: No proof kernel
qn4n1/B1p1b2k/rR1pQ3/1bbP1R1q/3n3Q/rNqB1P2/2P2N1B/1K2nQ2 b - - 0 1 legal: proof: e4 f5 h4 fxe4 a4 b5 axb5 g5 Ra5 gxh4 Ra2 Nf6 Ra1 Ng8 d4 Kf7 Kd2 Kg7 b4 h5 g4 e5 b6 a5 b7 h3 b5 a4 d5 e3+ Kc3 e2 Kb2 e1N g5 e4 f3 d6 b6 h2 g6 a3+ Ka2 h4 Qd2 h3 Qe3 Bd7 Bd3 Bb5 Qg5 e3 Nd2 e2 Nb3 Be7 Bf4 Ra6 Rb1 Qe8 Ka1 a2 Qh4 Qd8 Kb2 a1B+ Kc1 Bd4 Bg3 Nc6 b8Q Bc5 b7 Ra3 Qa7 Qa8 b8B Ra6 Qb7 Ra3 Ba7 Nb8 Rb2 Ra6 Kb1 Ra3 Qg5 Rh4 Qb6 Rha4 Qh4 Ra6 Qa5 Ng2 Bf4 Ne3 Qae1 Nf5 Qf1 e1N Bg3 Kf8 g7+ Kf7 Ne2 Kg6 Rg1 h1Q Bh2+ Qg2 Ng3 Qd2 Rg2 Qc3 Nh1+ Bg5 Re2 Be7 Re4 Nd4 Re5+ Kf7 Rf5+ Kg6 Bf4 h2 Nf2 h1Q Bh2 Be8 Nd2 Ba4 Rb6 Bd7 Nb3 Bb5 Bf4 Qh3 Bh2 Qg4 Ne4 Qh5 Nf2 Nf6 g8Q+ Kh6 Qd8 Kh7 Qc8 Ng8 Qe6
1NBRQB1B/r2r1bb1/1P1nQqp1/1prq4/2Q1r3/1q4P1/1PR1b2K/1n1kN3 b - - 0 1 illegal: No proof kernel
RNQ1r1B1/b1Qrr3/n1p2nkn/2Nn1Q1R/2P3P1/1q1B1n1p/5n1P/3b1KB1 b - - 0 1 illegal: No possible last move, all moves rejected
3QQbB1/nbrq1b1P/2pnn1N1/6BR/Bn2b1R1/2k4p/2Pb1N1P/r4RK1 b - - 0 1 illegal: No proof kernel
4nr2/1B3p1Q/2b4B/1bpr1P1b/Nnr2P2/KQb1QRR1/n1P1rN2/q1B4k b - - 0 1 illegal: No proof kernel
1B1BrRNN/4p2N/1b2qpP1/1k2PB1n/5P1q/1n2qbQ1/R1Knq1rQ/5n2 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 Bd2 gxh4 Bg5 Nf6 Bc1 Ng8 Kd2 d5 b4 Kd7 f4 a5 c4 h5 g4 a4 e4 h3 c5 h2 g5 d3 b6 Kc6 b7 a3 g6 h4 Qb3 d4 Qd1 a2 Bg2 h3 Ne2 Bg4 Nec3 Qd7 Qc2 Bg7 Nd5 Nf6 Bf3 Kb5 c6 Nh5 c7 Qe6 c8N Na6 b8B Nc5 Nf6 Re8 Ng8 Nb3+ Kd1 Ra6 Be3 d2 Qb2 Ra4 Kc2 d1N Nd2 Ra6 Bg2 Bf3 Qa3 Bf6 e5 Bh4 Ne4 f6 Qb2 Bf2 Ng5 Nd2 Nh7 Rd6 Qc3 Rc6 Bf1+ Rc4 Bd3 Bg1 Bf5 d3+ Kc1 Rc5 Bf2 Ne3 Qc2 Nef1 Nd6+ Kc6 Nf7 Kb5 Nh8 Rcc8 Bg3 Bb6 Be1 Rc4 Qc3 Re4 Bf2 Re2 Bc5 Rg2 Bcd6 Ne4 Bdc7 d2+ Kb2 d1Q+ Qd2 Ng5 Bd8 Qe2 Kc2 Qe3 Qf2 Ne4 Qd2 Qe1 Qf2 Ned2 Qh4 Qe2 Qg3 Kc4 b5 Qe3 Rg1 h1Q Rd1 h2 Rb1 Bd4 b6 Qe2 b7 Bb6 Rb4+ Kc5 Rc4+ Kb5 Rc8 a1N+ Kb2 Nab3 Kc2 Rf2 Rg2 Qg1 Bd6 h1Q b8Q Qd5 Qa8 Qh3 Bb8 Qe6 Qa3 Qh4 Qh2 Na5 Qc3 Nab3 Qe3 Bg4 Qeh3 Bf3 Q3g3 Qe1 Ng5 Rf8 Kd3 Nc4 Nh7 Rc2 Bdc7 Ra2 Rb2 Qge3+ Kc2 Q1f2+ Kb1 Qfd2 Re8 Qdf2 Rc2 Qfd2 Bd8 Qde1+ Rc1 Rg2 Rd1 Ncd2+ Kc2 Q1e2 Ra1 Ng7 Bdc7 Nh5 Rc8 Rd8 Ra2 Rd4 Re8 Rd8 Rf8 Re8 Bd8
r2N4/1bb1Q2p/n1B1n1n1/4NP1P/K1Q1p1b1/2RbqBrk/3BP1qn/4R2Q b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 Kd2 Kf7 h4 Ke6 f4 Kf5 c4 a5 Kc2 e5 Kb3 d5 c5 g5 b6 d3 h5 d4 b7 d2 c6 g3 c7 Kg4 Ra2 g2 Nh3 g1Q Ra3 a4+ Ka2 e4 b4 d3 b5 Bd6 b6 Qe3 Bb2 Ne7 Ba1 Rg8 Qc1 d1B Rb3 a3 Bc3 d2 Qc2 Na6 b8Q Qe8 b7 Qg6 Qd3 Bc2 Bg2 d1B Qa7 Bd7 Qdd4 Bd3 c8B Be5 Qac5 Bc7 b8Q Kh4 Qa4 g4 Bd2 g3 Bf3 Qg4 Rc3 Bb3+ Ka1 a2 Kb2 a1N Ka3 Bde6 Bb7 Bbd5 Ng5+ Qh3 Nf7 Nb3 Rf1 Nd4 Nd8 Qg4 Qab5 Kh3 Ka4 Bf5 Qcb4 Ne6 Na3 Rg5 Rb1 Ng6 Nc4 Bc6 Ne5 g2 Qe7 g1N Bh1 Bd5 Qc4 Nf3 Ra1 Nh2 Bf3 Qgg1 Rb1 Rg3 Ra1 Bg4 f5 Ra7 Ba8 Qgf2 Qb1 Qg2 Bb7 Ra8 Qh1 Qg5 Re1 Qe3 Bc8 Bb7 Bd7 Qb6 Bb5 Qe3 Bc6
2bnrn1q/6Br/RB1q1pqR/7Q/qpBbN1R1/1PrP1P2/k5Q1/r2N1K2 b - - 0 1 illegal: No proof kernel
1BB5/pp1b3b/NPr1n1RN/1r2q1b1/P3q3/K1Rq3B/2P3nQ/bk1Q1q1N b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 d3 c5 d4 cxd4 Kd2 Kf7 g4 Kf6 f4 e5 a4 d5 b4 h5 b5 e4 b6 d3 Kc3 h3 Kb2 d2 Qe2 d1Q Bd2 e3 Qc4 h2 Qb3 h4 Bc4 e2 Qb5 e1B Nc3 d4 Ra3 h3 Nge2 d3 Nd4 Qc7 Nce2 Nh6 Qd7 Bh4 Rg1 h1Q Be6 h2 Rc3 Bg7 Ng3 Nc6 Ka3 Qe4 Nh1 Bg5 Be1 d2 Bg3 Qde1 Qd6 d1Q Bd7+ Kf7 f6 Nd8 f5 Ne6 Qd5 Qc4 Bb8 Qcf1 Rg2 Qdd3 Rg3 Be3 g5 Ng4 Qd6 Rh5 g6+ Kg8 Qc7 Bg5 f7+ Kf8 Rg1 Ke7 f8N Kf6 Rg3 Bh8 g7 Ne3 g8B Ng2 Qf4 Qe5 Qf3 Q1e4 Qd1 Qc7 Bf7 Ke5 f6 Kd5 Bg6 Qce5 Nf5 Bg7 Nh6 Kd4 f7 B7f6 Bb5 Bd7 Bf5 Bg7 Bh3 B7f6 Bc7 Rc8 Bb8 Rc6 Bc4 Bf4 Rg6 B4g5 Nh7 Bg7 f8Q B7f6 Qh8 Ke3 Qf3+ Kd2 Nf8 Kc1 Bb3 Kb1 Bd5 Nd8 Ne6 Bg7 Nc7 Ne6 Ng3 h1B Na6 Ne1 Qe2 Bf3 Qh2 Ng2 Nh1 Bg4 Qd8 Bf5 Rf6 Bh7 Rg6 Bf4 Bc4 Rf5 Bd5 Bg5 Bb3 Q5d4 Bc4 Rb5 Bb3 Qde5 Bd5 Nc5 Bde6 Bh8 Beg4 Ne6 Qf8 Ng7 Bc7 Qe6 Bb8 Be8 Qf3 Q6d5 Bc8 Ne6 Qh5 Bd7 Qe2 Bd4 Qh5 Qde5 Rb3+ Kc1 Qe2 Ba1 Rc3 Kb1 Qd1+
2Qq2qr/K4BR1/n5BN/RprQ1N2/1Rb2pPq/2q1r3/1P2nP1B/4brk1 b - - 0 1 illegal: No proof kernel
k2brr1N/3pp2B/b6B/q1n1nB2/1q1Qq3/PQ4Rb/1N1PPN1K/R2bq3 b - - 0 1 illegal: No proof kernel
N2K2b1/p1r1r1qN/Ppr3QP/1P4n1/1b1kB1q1/p3B1Qb/4Q2R/Nn1R3q b - - 0 1 illegal: No proof kernel
1k3Bb1/qQ3r2/pNb2b2/1p6/PPQ3n1/1R1qRQ1r/r1n1p1NP/nK1B1B2 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g3 cxd4 g4 hxg4 Kd2 g5 c4 d5 Kc2 Kd7 b4 Kc7 f4 b5 a3 e5 c5 d3+ Kb2 e4 c6 d2 f6 e3 f7 g3 f5 e2 f6 d4 Nh3 d3 Nf4 g2 Ka2 g1R Nh3 g4 Bg2 g3 Nc3 Bg7 f8Q Rf1 f7 Bf6 Rb1 Bd7 Rb3 Nh6 Na4 Na6 Nf4 Kb8 Kb1 Nc5 Nb6 Ng4 Qe7 Rh3 Qc2 d1N f8Q d2 Qc4 Nde3 Rg1 d1B Be4 g2 Bc2 Rf2 Rf1 g1Q Ng2 Rf5 Rf3 Be8 Qef7 Qd3 c7+ Kb7 c8B+ Kb8 Rg3 Bc6 Qfd5 Rf2 Qe7 Rf4 Qf3 Qf2 Rc3 Nb3 Bb2 Na1 Rb3 Bh4 Qd7 Rf7 Bg7 Bf6 Bf8 Qd5 Be4 Nec2 Qe7 Qd3 a4 a6 Bb7 Ra7 Bc8 Rc7 Bcf5 Nce3+ Qc2 Nh6 Bg4 Qd5 Nf4 Rg7 Rb2 Ba8 Qh1 Rh4 Bh3 Nhg4 Bf1 Rh3 Nc8 Rc4 Qc1 Bb3 Bc2 Bc6 Bd1 Rc2 Qd7 Bc4 Rb3 Ra2 Qe4 Qg1 Ng2 Qd3+ Qc2 Bg8 Qef5 Qd4 Qc4 Rf7 Qfd5 Qa7 Nb6 Nec2 Qde4 Qd4 Rge3 Qc3 Qf3 Qd3 Qb7+
1q3QRr/kp5Q/q1R2n2/1Pn3p1/1nbbrBB1/p3bKP1/B1PN1R2/2N1q3 b - - 0 1 illegal: No proof kernel
r1N2Q2/1nP1pb2/1K2PR1p/4p1r1/1R1r3b/2k1q3/2Nq1nbP/1R1BqNBQ b - - 0 1 illegal: No proof kernel
8/r1R2KNQ/Qp1Qp3/bB1r1PB1/nR1B3p/3n1q1P/rP4bN/1bq1n1k1 b - - 0 1 illegal: No proof kernel
3n1RQ1/1nq1b3/N3Nn1p/Q2qb1r1/Bp1pBr2/1PP2qB1/3k1Q1P/1K2Rb2 b - - 0 1 illegal: No proof kernel
5B2/qk2r3/1qPpqQ1Q/n4p1n/5bRn/1p2B2N/bP1P1r2/bBRNR1K1 b - - 0 1 illegal: No possible last move, all moves rejected
2b2N2/Nn1r1pnp/4p3/n2q2PP/1BQ2rkb/qR3Pqb/B1RQKQR1/8 b - - 0 1 illegal: No possible last move
5R1N/r2p2bB/2p1rk1q/2qpnq2/rPQRb3/1Q1P2nN/2PQ4/N1BK1n2 b - - 0 1 illegal: No proof kernel
4n1rn/4b3/K2ppR1N/1QNNq1r1/3Q4/4Ppr1/bRqP1P1k/b1BqB2Q b - - 2 3 illegal: Other
2k5/4qNpQ/4BR1p/1p1QrbbP/1RbR4/1Pqr1rnn/1B4PN/K3n1B1 b - - 2 3 illegal: No possible last move
Nn1bb3/1b1pq3/QRQ2rN1/B1nPP2K/R1pr4/B1N2pb1/5P2/1n3Bbk b - - 0 1 illegal: No proof kernel
3nB2q/Br1Nb3/1b2Q1Rn/1b1K4/3p3r/p1bQ1PRk/P1pP2b1/Q1N1n1R1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c3 b5 c4 bxc4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 b4 h5 g4 c5 f3 d5+ Ke5 a5 f6 c3 f7 c2 b5 a4 b6 c4 b7 a3 Bd3 c3 Qe1 h3 Ba6 h4 Be2 h2 Ba6 h3 Qf1 Kh4 g5 Nc6+ Kf4 e5+ Ke3 e4 b8Q Ra7 g6 Be7 f8Q Rb7 g7 Nh6 g8R Bd7 Bb2 c1B Qd3 c2 Bd4 Bb2 Ne2 Bc3 Rhg1 h1N Qf5 h2 Bb5 Nf2 Qe6 h1B Qbe5 Bg2 Rg4+ Kh3 Nc1 Qc8 Q5f6 Nd8 Ba7 Rh7 Kf4 e3 Qfd4 e2 Ke5 e1B Ba4 Bb2 Nc3 Bb5 Ne4 Bc3 Nc5 Rh8 Nd7 Rh7 Kf4 Qa8 Qg7 d4 Ke5 Bc5 Rb1 Bb6 Kd5 Rh8 Qgh7 Qc8 Qf1 Nd3 Ra1 Bg3 Qd1 Ne1 Qd3 Qa8 Rb1 Bd6 Rb4 Bf8 Rc4 Nf5 Rc6 Nh6 Nc5 Nf5 Qe8 Nf7 Ne2 Ba6 Rcg6 Rh4 Qa1 N5h6 Qe6 Be7 Nc1 Qh8 Be8 Bb5 Nd7 Nd8 Rg3+
b1QB2rq/1Q1rpbr1/1b1p1p2/3NQ1nr/R1KP1P2/r5k1/P1nN4/1BRR4 b - - 0 1 illegal: No proof kernel
B3n1bq/b1N1p1r1/b2r3r/1B1Q2R1/1P6/bp1KP2k/1P1pNRQ1/3bBnR1 b - - 0 1 illegal: No proof kernel
2R2Q2/1nqR1B2/p3b3/1n2P2K/r2pnQr1/2RP2p1/Nrb1b1PB/2b1BNk1 b - - 0 1 illegal: No possible last move
1R3r1Q/1n1BbnKb/1p2p2p/bP2PBNN/1n5k/2nrQq2/R1P5/B3Q2r b - - 0 1 illegal: No proof kernel
b2Q1Rq1/Q2np3/1N6/1RnbP1kN/1Q1n3P/B2p2rr/2NP3p/KBb1b1r1 b - - 0 1 illegal: No possible last move
Rb1r3q/4Pbnp/3kr1NB/pB1b1n1P/1pRN4/bP1n2R1/K2Q3N/4Q2r b - - 0 1 illegal: No proof kernel
B1R1n3/p1NpnRpr/Q1QB3R/Pb1P4/1Pnb4/1q2NKQ1/b6r/n4k1r b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 h5 gxh5 b5 Qc2 bxc4 Qa4 Ne7 Qd1 Ng8 Kf2 Ke7 d4 Kf6 a4 Kf5 h4 Kg4 b4 c5 e4+ f3 h6 f5 a5 c3 h5 c2 e5 f4 e6 c4 h7 c3 h6 Nf6 e7 Ne8 Bd2 c1R Ne2 c2 Ng3 Ba6 Nh5 Nc6 Qe1 Bc4 Bg2 Ba2 Nc3 Rd1 Rh3 c1N Ng3 Nb3 Nd5 Qb6 Qe5 Rh1 Rf1 Na1 Nc7 Qa6 Qe3 Qd3 Nf5 Qb3 Qd3 Rb8 Qa6 Rb5 Bc3 Re5 Rh2 Re1 Rh5 Rh4 Bh1 Kh3 Ne3 Rc1 Rb5 Kh2 Rb8 Kh3 Rc8 Rc2+ Ke1 f2+ Kd1 Rc1+ Ke2 Kg3 Be1 Rh2 Be4 Kh3 Kf3 Rb1 Rg1 f1B Bg3 Bb5 Rf1 Re1 Rf2 Reh1 Bd5 Nf6 e8Q Bc5 Qe5 Ne7 Ba8 Ne8 d5 Bd4 Qef6 Rc1 Qfc6 Rch1 Ke4 f3 Bd6 Rg1 Rf1 f2 Kf4 Rgh1 Kf3 Rg8 h8R Rf8+ Ke4 Rf6 h7 Rh6 Kf3 Rh5 Rg1 f1N Rf8 Rh4 h8Q Rh7 Rg6 Nd2+ Kf4 Rh6 Rf7 Nc4 Qh7 Rh5 Rgf6 Rh6 Qd3 Rh5 Rh6 Rh4+ Ng4+ Kg2 Qc3 Kf1 Qg3 Qc2 Kf3 Qa4 Rg6 Rh7 Rh6 Qb3+ Ne3+
5br1/2k3Qb/2p1Nb1K/n2Bn1BR/p1P3N1/2b1r1pP/Pn3Q1R/N2R2rq b - - 0 1 illegal: No possible last move
3Qnq2/2br4/1pNkpp2/2R3RN/1P2KQ1B/4P1PN/n1B1r1Rn/1bnb2r1 b - - 0 1 illegal: No proof kernel
B4B2/n4PQ1/1qB1pNrR/2pR4/b1k2Q2/rNP1n2p/r1NnP2b/2n1K2b b - - 0 1 illegal: No proof kernel
r2q4/3QbR2/pkQ1n1bN/1BnrNR2/2rQp1p1/2b1n2P/PR3KP1/b1B5 b - - 0 1 illegal: No proof kernel
1b1B3b/1K2nB1R/p1R1Bp1N/4NR2/pk2r1r1/4Pq2/Pn2nPbb/2Qr1Q2 b - - 0 1 illegal: No proof kernel
brBNB2B/pp2NPbk/3K1b2/1r1Q3R/r6p/n3R2n/P1r4P/2NQ2nq b - - 0 1 illegal: Other
2b2Q2/n1K2ppN/RQp2q2/2Pr1NP1/Q2B1R1n/4rP2/4Bb1q/qRq2kq1 b - - 1 3 legal: proof: e4 d5 g4 dxe4 a4 h5 g5 b5 Qg4 hxg4 axb5 Ba6 Nf3 Bb7 Ng1 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 b4 Kd4 h4 a5 c4 e3 c5 a4 b6 e2 b5 Kd3 Ke5 e6 h5 g3 h6 g2 b7 a3 b6 a2 h7 c6 f3 Ra3 Nc3 Nh6 Rh4 Na6 b8Q Bd7 b7 Nc7 Qa8 Nb5 b8R Bc8 Rf4 Be7 Ne4 Nf5 Qa4 Na7 Rbb1 Nh4 Bb2 Rg8 h8Q Rb3 Nh3 g1Q Nd6 Qh2 Nf5 Re8 Bc3 Rb4 Qf8 Rd4 Rb6 Rd6 Rab1 a1Q Ra6 Rd7 Bd4 Rd6 Bg2 e1Q+ Ne3 Ke2 Nf2 Qhh1 Nfg4 Qc1 Nf6 Qh2 Bf1+ Ke1 Nh7 Rd5+ Ke4 e5 Nf5 Bf6 Be2 Qd6 Bd1 Re6 Bg1 Kf1 d4 Bd8 Bf2 Ba5 Bg1 Re7 Be3 Qf6 Bg1 Rd8 d5 Be1 d6 Bf2 d7 Rde8 d8Q Rd7 Qda5 Rd5 Q4b4 Bg3 Bd4 Bf2 Qab6 Re7 Bc2 Re8 Qa4 Re6 Kd3 e4+ Kc4 e3 Kb4 e2 Ka5 Re3 Bd1 e1Q+ Qb4 Qc4 Kb6 Qc1 Kc7 Kg2 Qbb5 Qeg1 Qb6 Kf1 Be2+
2r3k1/1PN4p/1p1p2N1/1Q2Q2K/B1rbb2P/1Pr1nRrn/2qN3q/1BB1r1R1 b - - 0 1 illegal: No proof kernel
1q2n1k1/4qpr1/qQ1P1P1B/2Q3p1/r1r1bpP1/1n2Q1NB/2R1Kb2/2R1N1Bq b - - 0 1 illegal: No proof kernel
BQ1qkB2/1n1r1qb1/3Rpq2/Pr3b1N/4P1r1/K1p1N2p/R2N1n1P/2Qr1B2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f3 axb4 f4 gxf4 g4 c5 d4 h5 Kd2 b5 Kc2 f5 Kb2 b3 a4 c4 e4 c3+ Ka3 f3 g5 f2 g6 f4 g7 b2 d6 h4 d5 b4+ Kb3 f3 a5 h3 Bf4 Bf5 Bh6 Na6 Ra2 Rh7 Qc1 Nf6 g8B Bg7 Na3 Ng4 Nc4 b1R+ Ka4 b3 Ka3 b2 Ne3 Nc5 d7+ Kf8 d6 Nb7 Bd5 e6 Ne2 Ra1 Nf4 b1R Nh5 Rb5 Bc6 Ra7 Bd5 Rh8 Rg1 Rg8 Rg2 Qc7 d8N Ke8 Nf7 Qd8 Ne5 Rab1 N5c4 Ra1 Bd3 f1Q Rd2 f2 Be2 Rab1 Rd3 Ra1 Nd2 Rab1 Qc2 Rd1 Qc1 Qh1 Rd4 f1Q Bec4 Qf4 Bf1 Qhf3 Rd3 Nf2 d7+ Kf8 Bc6 Qfg5 Rd6 Qgf6 Ng3 Qh5 Bd5 Qhf7 Nh5 Qde7 d8Q+ Qee8 Qa8 Qed8 Qb8 Ke8 Qa8 Nc5 Qb8 Rd7 Ba8 Nb7 Nf4 Bh8 Bf8 Rg4 Nh5 Bg7 Qc8 Q7g6 Qc7 Qgf7 Qb8
B1qQ2K1/pb2B1n1/1b1rr1rp/1NR2n2/N1q2PRP/p3q3/PN1q4/QkB5 b - - 0 1 illegal: No possible last move
1r1nQ1n1/Bp3b2/1N6/N1r2q1n/qR2nppP/2Q3kb/5PPb/RKQB3B b - - 0 1 illegal: Other
rq2bBQ1/Nk1N1rP1/1qBp1n2/r3Bp1r/3P4/1R1KpPnQ/7N/q1b2R2 b - - 0 1 illegal: No proof kernel
4b2N/5kq1/2q2p2/Bnrp1P2/3NRbbr/nNbQr2p/R2P2PB/QB3K2 b - - 0 1 illegal: No proof kernel
2Q2nn1/2p3p1/2P1p2R/1Q1Pb1R1/2nb2PB/6QK/1nNkrqB1/1NrbqB2 b - - 0 1 illegal: No proof kernel
N2N1kR1/QpNqr2p/2P1nb1K/1qp3BP/4nbB1/1QP2br1/4q1b1/B6R b - - 0 1 illegal: No proof kernel
3K3B/1QN1np1b/3b3q/1p3Rqk/qP1qQP1B/R3p1Q1/1nr1n2P/rB3N2 b - - 0 1 illegal: No proof kernel
rBK2n1b/4rNR1/pk6/1NNR1Q1q/1b1n1b2/PPpq1bnB/1pP5/2QQ4 b - - 0 1 illegal: No proof kernel
6n1/KNp2B1p/1r1Q1Qnk/2PrR3/3qb2P/R3P2Q/1n5p/qnNqB1bR b - - 0 1 illegal: No proof kernel
n2q1nKN/b1q2R2/p3Q2Q/p3B1p1/3rRb1r/P2bP3/2Bq1qP1/kN2B2Q b - - 0 1 illegal: No proof kernel
n2N2R1/1q1Pq1p1/1Qb5/1N1q1R1n/ppR1n1BN/nP1r4/1Bkr2PQ/b5K1 b - - 0 1 illegal: No proof kernel
nNqN1BqQ/Q3npp1/4bnN1/3R1kPp/KBR4P/8/1br2P1n/2b2R1r b - - 2 3 legal: proof: d4 e5 a4 exd4 e3 c5 Nf3 b5 axb5 c4 Bd3 cxd3 Ng1 Qe7 Nd2 Qh4 Nb1 Qd8 Kd2 Ke7 b4 Kf6 c4 a5 g4 h5 h4 d5 b6 a4 g5+ Kf5 b5 a3 c5 a2 e4+ Kg6 c6 Ba3 c7 Ra6 e5 Ne7 e6 Nd7 b7 Nb6 b8N Kf5 Nc3 Qg8 Na4 Na8 b6 Ra7 Rb1 a1B b7 B1b2 Nc5 Bd7 c8R Ra6 Ke1 d2+ Ke2 Rd6 Qa4 d1N Kd3 Ne3 Nh3 Ng4 Kc2 d3+ Kb3 d4 Rd1 d2 Qa7 d3 Nf4 Nf6 Ng6 Ra6 Rf1 d1N Bd2 Ne3 Bb4 d2 Rbd1 Neg4 Rc6 Rb6 Ka4 Bc8 Rc7 Nh2 Rc6 Bc1 Rc7 Bab2 Rc6 Ned5 e7 Be6 e8Q Ne7 Rc7 Rd6 Qc8 Rd3 Rc6 Rh3 Qd8 Bd5 Ne6 Rh6 Qe8 Rh8 Nd8 Be6 Rc4 Rh6 Rde1 Rh8 Re3 d1Q+ Rb3 Qg4 Rd3 Nf3 Rd2 Rh1 Qf8 Nh2 Rd5+ Be5 Nd7 Rh6 b8B Rh8 B8d6 Qh3 Rd2 Beb2 Nb8 Qc3 Rg4 Qc7 Rc4 Qc8 Rd5+ Be5 Re1 Qh7 Qe8 Qc7 Red1 Nc6 Rcc5 Rg8 Nb7 Rh8 Qe7 Rc8 Qe8 Qd8 Qh8 Qhg8 Bf8 Ne7 Rg1 Rc6 Rf1 Qc8 Rc2 Rc5 Nd8 Rc7 Rd7 Beb2 Rd4 Rc5 Rcd2 Rc3 Rc4 Rc2 Rd5+
1b6/2qk1pQ1/4q1pK/2QBBN2/p5Pn/rbqR1QB1/1P2qPn1/NRn3r1 b - - 0 1 illegal: No proof kernel
QN2N1R1/2Q1p1BR/P4pr1/KB1q1nbb/pNq2P2/n1q5/3QP1n1/r2q2k1 b - - 0 1 illegal: No proof kernel
1BB1RKQ1/N7/Bbpp4/2nkN1r1/b1b1R1p1/1rqP4/1qPQ1nP1/n3R2b b - - 2 3 legal: proof: f4 e5 h4 exf4 a4 b5 axb5 Qf6 h5 Qh6 Nf3 Qxh5 Ng1 Qh2 Kf2 Ke7 Kf3 Ke6 Kg4 h5+ Kg5 f5 Kg6 a5 e4 f3 b4 h4 e5 a4 b6 f4 b5 f2 b7 h3 b6 a3 Qe1 a2 Ba3 f3 Bc5 Ra3 Bd6 Na6 b8R Rb3 b7 Nf6 Qe3 Ne4 Qb6 Rg8 Be2 f1B Qe3 f2 Nf3 Nac5 Na3 Kd5 Kf7 g5 e6 g4 e7 Qe5 e8B h2 Re1 a1N Ba6 Qc3 Ne5 Rg5 Nb5 Bc4 d3 f1Q+ Qf2 Be7 Na7 Bd8 Kf8 c6 Re2 Qb1 Rhe1 h1B Qe3 Bb5 Qd2 Nf2 Re4 Qbb2 Ra8 Bb6 b8Q Bc4 Bc7 d6 Bd7 Bb7 Qe8 Bb5 Bb8 Ba4 Bf5 Bc8 Qg6 Bd7 Qg8+ Be6 Bc7 Bf7 Re8 Nd1 Bfc8 Nf2 R4e2 Kd4 Bb8 Bc4 Qh8 Kd5 Re4 Ra3 Qg7 Rb3 Qg8+
RN4Nb/K1p1pBpq/2R1nbr1/6n1/1qP1q3/1b3P2/B2RPr1B/Q1k1qQ2 b - - 0 1 illegal: Other
2RqN1b1/6pb/pN2Q2b/KR1rp2B/7N/2nn4/PqPbrkPB/1QQ3q1 b - - 0 1 illegal: No proof kernel
b1q3br/RN1QbBnQ/1Qbp3p/2BPr3/1P1B4/4n3/1K3kpP/3b1RNb b - - 0 1 illegal: No proof kernel
1r1n3K/1p4Pb/b2Qq2b/b1BpB3/B1p4b/QnN1N3/RrPP1kQ1/4b2R b - - 0 1 illegal: No proof kernel
r5n1/3n1P2/bQ3b2/1q1pn2b/1b1PBK1R/BNpR1p2/1BP3r1/1N1knR1Q b - - 0 1 illegal: No proof kernel
2r1qRb1/5P2/p1QbB1B1/5Npk/Pr1Rp1N1/K1Bn1nQ1/N2bP3/4r1br b - - 0 1 illegal: No proof kernel
n2R2Q1/krpp1RK1/3npnQ1/1NP1b1Pr/2B1q3/3n1RN1/NBb1P1r1/6r1 b - - 0 1 illegal: No proof kernel
bQ2Rk1b/1qp4q/R1PNKp1r/5P1B/3bnB2/p1Pr1pB1/Q5nr/R4N2 b - - 0 1 illegal: No possible last move, all moves rejected
B1K1N2b/PBB1p1q1/1Nk1P2Q/r1pp4/2P2rb1/4R1qn/2qNnQp1/r1R5 b - - 0 1 illegal: No possible last move, all moves rejected
1qqq4/p5n1/pRp3k1/P1Pr1Pb1/bN1QBBR1/NpQ1b3/8/Kn1r1QB1 b - - 0 1 illegal: Other
Q3Bq2/RQ1bp3/B2p4/B1RPPqn1/2NK1b2/1rPNp3/r1Q4p/1k1q1r1n b - - 0 1 illegal: No proof kernel
R1B1QBK1/nbk4p/5p1b/3Rq2P/pr1pq1nP/3P1Qr1/bn1R2N1/3N3N b - - 0 1 illegal: No proof kernel
1KRB2r1/1n2N3/2ppP1bn/2P3R1/r2b1Bpq/b1p2Q1N/2q1BrPk/4NQ2 b - - 0 1 illegal: No proof kernel
3bKRqr/1QpBp3/1P3q1N/NpP1B1R1/1PnQN3/r5r1/3p1B2/qb2kn2 b - - 0 1 illegal: Other
nB1RQ1rn/bKQ1Bq1p/5p2/2b1pPN1/q1Q2RpP/n7/3kBNrP/3b4 b - - 0 1 illegal: No proof kernel
4nq2/N2Qp1pK/qnQ2q1p/1Bkp2NP/3rP1B1/2bPr1R1/3B1bbN/R7 b - - 0 3 illegal: No proof kernel forced: wxDB
1B4bB/Nqb2Q2/1Ppn3R/2K4B/N2r1p1n/rqP1QppQ/1b3kPR/5q2 b - - 0 1 illegal: No proof kernel
R5q1/R2n1r1p/Q1b1n2p/rP1rbN1q/N4p1B/1p2Q3/kP1B3P/nB2N2K b - - 0 1 illegal: No proof kernel
q1b2br1/p1p1nQ2/1P4Q1/K1pN1R2/1Bp5/PkPnR2q/nN1r1N2/1q1B2B1 b - - 0 1 illegal: No proof kernel
5B2/3B1RQk/1r1P1Rp1/2ppqqrb/4N1B1/1bQPK2Q/1p2N1Pb/1q2n2n b - - 0 1 illegal: No possible last move
3qQ1q1/2pp4/Rpk1qpBK/4Q1B1/RP2P1R1/1r1b1r1N/3P1QNn/2r1b1n1 b - - 0 1 illegal: No proof kernel
4bNnB/pQ1B1r2/1p3Nq1/k1r4r/P1R2R2/2nprRQ1/rbPP2Kp/7B b - - 0 1 legal: proof: f4 e5 h4 exf4 b4 c5 bxc5 g5 Ba3 gxh4 Bb2 Qb6 Bc1 Qd8 Kf2 f5 e4 h5 g4 d5 a4 Kd7 e5 Kc6 g5 f3 e6 h3 g6 d4 e7 d3 e8R h2 g7 f4 Na3 h4 Re2 h3 Nb5 Nd7 Na3 Ndf6 Bg2 Qb6 Re4 Nd5 Rc4 Nc3 Nb5 Bd7 Ne2 Rc8 Nd6 Be8 Ne4 Rh5 Rf1 h1R Nf6 h2 Nd4+ Kc7 c6 Ba3 Qe2 Bb2 Qe4 Qa6 Ne6+ Kb6 c7 Ka5 Qh7 Qd6 Qe4 b6 Nf8 Rg1 Bh1 Rg3 Qb7 Qc6 Ne4 Qg6 Nf6 Rgh3 Re1 Rg3 Ree4 Rgh3 Kf1 f2 Rb1 Re3 Red4 Rd8 c8B Rdd5 Bd7 Rc5 Ra1 Qh6 Kg2 f3+ Kg3 f1R Rf4 f2+ Kg2 Rd1 Rb1 f1R Ra1 Ne7 g8Q Rde1 Qg4 Qg6 Qg3 Ng8 Rf3 Re7 Rb1 R1e3 Rcf4 Rf7 Rc4 Ba1 Rbb4 Rd1 Ba3 Bb2 Rcf4 Ra1 Rbc4 Rc7 Bc5 Ra2 Bd4 Rc8 Ne4 Rc7 Bh8 Rcc5 Nf6
1bkRnQ1R/4B1nQ/PQpn2b1/R5pn/r1p5/1nqN1B1N/1pP1K1P1/5r2 b - - 0 1 illegal: No proof kernel
2q3B1/2QBrnp1/1KN1b1PB/rpQ3b1/4pP2/2pRP1k1/1N6/1Qnbb1Rn b - - 0 1 illegal: No proof kernel
2k3n1/bnNpP1r1/3Ppbp1/Bq1R1b2/2Q3rp/4P1QR/rB4Nb/QB1K4 b - - 0 1 illegal: No proof kernel
2RB1B2/1N1bp2R/4r2Q/B2p1nbp/1Kp5/1nP1P2N/R3rQnP/kq2b1n1 b - - 1 3 illegal: No proof kernel
K2BnR2/2N2pQp/5R1Q/npb3r1/pP2rR1P/1n1qrQ2/b1Pk3N/n2B4 b - - 0 1 illegal: No proof kernel
1n4R1/PQnpB1Nb/p2Rbr2/r4p1B/R4P2/Pp1NbQnK/2Qq4/b6k b - - 0 1 illegal: No possible last move, all moves rejected
N1n1R1rB/R5pp/1bb4b/1kbnp1P1/p3r2P/N1P3R1/5Q1K/B1q1r1QB b - - 0 1 illegal: Other
4QR1n/N1pK2RB/b1PNNp2/1Q1Qb1n1/8/p1Bnr2P/4pPqk/nr4r1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 h5 Bh3 hxg4 Bg2 Qd6 Bf1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 a5 d4 g5+ Ke3 Kf5 c4 e5 b4 a4 b6 a3 b7 g3 c5 g2 b5 g4 c6 f6 d5 g3 d6 Nh6 b6 Nd7 b8Q Nc5 d7 Nb3 b7 Bd6 Qd3 Kg4 Ne2 Kh3 Nec3 Re8 Qd5 Nf7 Bd3 g1N Nb5 g2 N1c3 Nh8 Na7 Nf3 Bd2 g1R Ncb5 Ng5 Bc3 Qe7 d8N Qg7 Rb1 Na1 Ne6 Kg2 h3 Qg6 Rb2 Rb1 Rc1 Kh2 Rg1 Re7 Ke2 e3 Rd2 Qg7 Bh7 e4 Rd4 Be5 Nd6 Ngf7 Rd2 Qg2 Rb2 Ng5 Rd2 Bd7 Qe8 Bc8 b8Q Ba6+ Qbb5 Rc8 Qd7 Rg8 Qe8 Qh1 Rg4 Qg2 Rd1 Nf3 Rg7 Ng5 Ke1 e2 Kd2 e1N Ke3 Nd3 Rd2 Bf4+ Kd4 e3 Rd1 e2 Rg1 Rf1 Rf7 Rb1 Rf8 Nf3+ Ke4 Be5 Kf5 Rg3 Nf4 Reg7 Ke6 R7g4 Kd7 Ng5 Ne6 Re3 Rd1 Rgb4 Rd2 Rg1 Rd1 Rb1 Rd2 Ne1 Rd4 Nd3 Rg4 Ngf7 Rg6 Ng5 Rg7
6K1/QQ1bBn1r/p1R3Bk/BQpRN3/1pP4q/2n2b1P/P1b1p1n1/1r3Nb1 b - - 0 1 illegal: No proof kernel
1R2K2n/2p2B2/1b2br2/prr1pRkB/2NP1R2/P1Pp1q1Q/1n1B2N1/Qn4r1 b - - 0 1 illegal: No possible last move
1bR2K2/1PB1nQ2/1R3q2/kB1b4/p2p1Np1/nrB5/P1QpbRPb/Nqr5 b - - 0 1 illegal: No proof kernel
2nbNR2/2NpqRR1/3nbb2/r2P1p1P/pqB2K2/8/pr1B1PN1/1Q2Qbk1 b - - 0 1 illegal: No proof kernel
bq1Q2K1/b1pRN2r/b2p2B1/Q1R4q/1B2nn1k/ppP1BP2/1R1P1N2/2b4r b - - 0 1 illegal: No proof kernel
1QNb3b/1pBR1nrk/P3p2Q/3n1b1K/4N1r1/4PqR1/1P1ppb1B/3qQ2B b - - 0 1 illegal: No proof kernel
1b1Q3N/3rpp2/1bRpp3/1B2B2N/b2BQ3/1q2P1b1/R1qPkPKn/N1b4r b - - 0 1 illegal: No proof kernel
R1KB4/3BN3/Q2b2NR/1b1pp3/2nPPnR1/q2n2pp/b3N1Pb/Qrn2k2 b - - 0 1 illegal: No proof kernel
bn2bRK1/2NN3Q/NB1b1r2/2Q2B2/p1p1nr1p/Pk2p1R1/3RP1Pp/3q2n1 b - - 0 1 illegal: No proof kernel forced: bxLB
rR1n2rN/k1N2r1Q/4b1p1/1R3BQn/p3p3/2PpP1pK/PB1R4/q3Q1bn b - - 0 1 illegal: No proof kernel
B3bK1N/1R1pB3/rb1bp3/Qq4np/B1P3k1/Nn1RQ2p/2RrPpnP/8 b - - 0 1 illegal: No proof kernel
1Br5/r1n2bbp/n1NN2n1/p3p1p1/2Qp2q1/1P2RQPP/B2k1NK1/2RBb3 b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 Ra2 fxe4 Ra4 Qb6 Ra1 Qd8 c4 Kf7 f4 Kg6 Kf2 Kf5 b6 a5 b7 g5 c5 d5 c6 e6 g3 d3 c7 d4 Nh3 e3+ Kg2 Ke4 f5 d2 f6 e2 f7 Ke3 Qc2 e1B Qc4 Ba3 f8Q Be7 Nc3 Qd5+ Ne4 Ra7 Nf2 Qf5 h3 Na6 b8N Bf6 Be2 Ne7 Nd6 Bg7 Bd1 Ng6 Nc6 Qg4 b3 Bd7 c8B Be8 Ba3 e5 Rc1 Bf7 Bf5 Rg8 Bb1 Rh8 Qa8 Rd8 Ba2 Rc8 Be2 d1N Rg1 Nb2 Bd1 Na4 Rc3+ Kd2 Re3 Nc3 Bc5 Rac7 Ba7 Nb5 Bb8 Ra7 Qb7 Be8 Qbf7 Nbc7 Qf3 Bf7 Be2 Nb4 Nd3 Bf2 Rc1 Be1 Nf2 Nba6 Bd1
r2Q1B1K/P2b2p1/1NN2p1p/b1N2r1n/1nBr4/1R1pkPQP/2R1p3/1q2bB2 b - - 0 1 illegal: No proof kernel
4qB1r/1RQ1R1n1/1pQn1Bk1/2Nb1pp1/1K2nP2/2rbNq1p/1PBQp1P1/8 b - - 0 3 illegal: No proof kernel
1N1rq1B1/NpQ1RR1Q/5b2/3Bn1N1/bP2qkpK/p1r1ppP1/6PB/nr6 b - - 0 1 illegal: No possible last move, all moves rejected
Q1Bq4/n5R1/1k2Npp1/2rb3p/BR4PQ/Qp2P2q/1b2KP1p/n1B1Nr1r b - - 0 1 illegal: Other
b4N1K/1p2k1p1/NB1pR2p/q2p4/Q3rB2/N1nR1qb1/1PnP1r1P/1Q2b2B b - - 1 3 illegal: Other
RnK1R3/bN2b3/bkpp1p2/pPb2Br1/1Q4B1/P3Br1p/n1P2RQ1/2qN4 b - - 0 1 illegal: No proof kernel
1R1q2Q1/pK1P3p/2Q4r/p2nkp1B/r1b1bb1R/B1RN3P/P1Np2Qn/5b2 b - - 0 1 illegal: No proof kernel
5b2/6Q1/prp1K3/1NBp1pp1/QNP1nkPq/1Nb3rb/1QqR1P2/R4q1B b - - 0 1 legal: proof: d4 e5 h4 exd4 a4 g5 a5 Nc6 h5 Ne5 a6 Ng6 hxg6 bxa6 Kd2 a5 Ke1 a4 Kd2 Ke7 Kd3 Kd6 Ke4 h5 Kf5 f6 g4 c6 e4 a6 b4 d3 c4 h4 b5 h3 g7 h2 Nd2 Rb8 Ngf3 Rh3 b6 Rg3 b7 Qe7 Rg1 h1Q Bg2 Qh4 Ne5 Qd8 Ra2 a3 Bh1 Qb6 Rc2 a2 Ba3+ Qc5 Rb2 a1B Qa4 Qb4 Rc2 Bc3 Ra1 Qc5 Nb3 d2 Na5 Qb4 Nd3 d1Q Rd2 Qc2 e5+ Ke7 e6 Kd6 Kg6 f5 e7 Nf6 e8N+ Ke6 Nd6 Qbb1 Bc5 Qf1 Nb2 Ke5 Kf7 Kf4 g8Q Qg2 Qg7 Qf1 Nb5 d6 Na7 Be6+ Kg6 Ra8 b8Q Bd5 Qbb7 Be4 Kf7 d5 Ke6 Rb8 Qbb3 Rb6 Nb5 Bg2 Nd3+ Ke4 Nb4 Kf4 Qba3 Bh3 Nb3 Ne4 Qb2
kb5Q/rp1R1Bpp/b4bpP/B2nn3/P5P1/2p1NQ2/2p3RB/1rQ1q1NK b - - 0 1 illegal: No proof kernel
Q3Nrb1/kBb1bp2/1pp2Nn1/pp1QpP2/7B/P4n2/1q2PK2/RrN3BR b - - 2 3 legal: proof: c4 h5 g4 c6 gxh5 Nh6 b4 Ng8 b5 cxb5 c5 Rh7 c6 dxc6 Qc2 Rh6 Qd1 Rh8 d4 Kd7 f4 Kc7 h4 Kb6 a3 g5 h6 e5 h7 a5 h5 g4 h6 g3 d5 g2 d6 Bf5 d7 Be6 Kf2 Bg4 Be3+ Ka6 Nc3 b6 Na2 Bf5 Nh3 Bd6 Nc1 Bc7 Qd5 Ka7 Ng5 Ne7 Ne4 Ng6 Nf6 Nh4 Ne8 Qg5 d8B Nf3 Bd4 Qg4 Bh4 Nd7 Be3 Rf8 h8N Bh7 Ng6 Bg8 h7 Rd8 h8Q Qe6 Ne7 g1B+ Kg3 Qf5 Bh3 Qc2 Be6 Qa2 f5 Qb2 Kg2 Bf2 Kf1 Be1 Bg1 Bb4 Kf2 Bbd6 Qd3 Bb4 Nd5 Be7 Qd2 Nf6 Qd3 Nh5 Ndf6 Nf4 Bc8 Ng6 Bb7 Rd4 Qd1 Rb4 Qd5 Qa2 Qh6 Rb1 Qhd2 Qc2 Qd8 Qa2 Q2d5 Qb2 Qa8#
4K3/2ppp3/BQp3rB/pq3N1p/P6P/R2QRnnR/Q1rbPb2/1k1Nr3 b - - 0 3 illegal: No proof kernel
K5R1/n1pppB1N/ppkb1B1p/3bP2Q/1P3N1n/2rr4/1Q1P2qB/1Rb3Q1 b - - 2 3 illegal: No proof kernel
q2q2B1/p2n1pp1/Q1p3b1/2n3nN/1Q1rQP2/1pKN2Pp/PBN3k1/3R1Rr1 b - - 0 1 illegal: No proof kernel
1Bn1R2r/n5rB/Nk1P4/2n1B2K/3R3b/4r1b1/1PQP1bqB/1r2N2B b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 Na6 Ra3 Nc5 Ra4 Nb3 Ra1 Nxc1 cxd5 a5 e4 f5 exf5 h5 g4 Ba6 bxa6 hxg4 f4 Kd7 Kf2 c5 Kg3 Kc7 h4 g5 h5 e5 f6 e4 h6 e3 a7 c4 d6+ Kb6 h7 e2 f7 e1B+ Kh2 g3+ Kh3 g2 Kg4 a4 f5 a3 f6 c3 Kh5 c2 Nf3 g1R Rh4 a2 Rd4 g4 Na3 g3 Nb5 g2 Nc7 Be7 f8B Nd3 f7 c1N Na6 Ne5 Bg7 Bg3 f8B Ncd3 Ne1 Nc6 Be5 Beh4 Bfg7 Nge7 Qc2 Nc5 Bd3 Qg8 Rc1 Rd8 a8B a1R Bf4 Na7 Bge5 Qg7 Bb7 Rhe8 h8B Rb1 Bh7 Nec8 Be3 Qg8 B5f4 Re4 Bhe5 Qg7 Bf2 Rh8 Bc6 Re3 Bd5 Rf1 Bb7 g1B Bh1 B1h2 Bg1 Bf2 Rd1 Bh2g3 Bh2 Re8 Bg5 Rg1 Bd8+ Kb5 Bc7 Rh8 Bb8 Kb6 Nd3 Qb7 Rf1 Qg2 Re1 Ra1 Re2 Rgb1 Ne1 Ra4 Rd3 Rg4 Rd4 Rg7 Bf6 Rd3 Re8 Re3 Be5
N1k5/bB1q3b/N1pnR1B1/4bQPK/2r2P2/1P1rbr1N/5N2/3nN2R b - - 0 1 illegal: No possible last move
K1N2q2/4nNQ1/5r1B/1RPp1B2/N1P3r1/3P1nbb/q1b2r2/k1nNNR2 b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 b4 gxh4 bxc5 b5 a4 a6 axb5 axb5 Ke2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 e5 c4 h3 f4 h2 g4 b4 d3 h4 Nh3 b3 Bg2 e4 Ng1 e3 Nc3 e2 Be4 e1N Ra5 b2 Rb5 b1B Nf3 h3 Rf1 h1Q Qc2 d6 Qg2 h2 Nd1 Na6 Kc6 d5 Qg1 Be6 Kb7 Ne7 Qg2 Bc2 g5+ Kf7 f6 Rh6 f5 Nb4 Qg1 Qg2 Bf4 h1R g6+ Ke8 g7 Kd7 g8N R1h4 f7 Ra2 f6 Bh3 Bg6 Ke6 Bh7 Qf2 Qg7 Rg4 Bc1 Rhg6 Nh6 Rb2 Bd2 Na2 Bg5 Qd6 Ka8 Nc1 Bf4 Ng2 Be3 Nh4 Ne1 Ke5 Bg5 Kd4 Bd2 R6g5 Bf5 Rg6 Bg5 Nf3 Bf4 Nc6 Bg5 Be7 f8N Qfh2 f7+ Rf6 Ng6 Qdf4 f8N Bd6 Nd7 Ne7 Nf2 Kc3 Nf7 Bb8 Bh6 Ra2+ Ra5 Kb2 Nb6 Ka1 Na4 Qd6 Nd1 Qd8 Nd6 Qf8 Nc8 Bg3 Nh8 Qe2 Rb5 Rb2 Nf7 Qd2 Nb6 Qa5+ Kb7 Qa2 Na4 Bb1 Nac3 Rf2 Na4 Bc2 Ka8
KnQ2b1B/1N1bb1rB/p3P3/N3rkR1/3B4/2BP2b1/qP1nq2q/B5R1 b - - 0 1 illegal: Other
5b2/Rn3qrq/Rb1Nk1b1/PNN2p1P/3B2b1/N2B3r/4PrN1/1b2K1Q1 b - - 0 1 legal: proof: g4 c5 d4 h5 gxh5 a5 f4 d5 b4 axb4 c3 e5 c4 exf4 cxd5 c4 Be3 Nd7 Bc1 Nc5 dxc5 Qf6 Na3 Qe7 Nb1 Qd8 h4 Kd7 a4 b5 d6 g5 a5 f3 c6+ Ke6 d7 g4 h6 b3 c7 c3 h7 c2 Bg2 b4 Nd2 b2 Ne4 b1B Nd2 b3 Nh3 g3 Nc4 b2 Na3 Qf6 Be3 c1Q Bd4 Bg6 Rb1 Ra7 Rg1 Ne7 d8N+ Kd6 Rf1 Nc6 Ne6 Qc2 Nc5 Bg4 Nf4 Nd8 Rc1 b1B c8N+ Kc7 Rh1 Nb7 Nd6 Qe4 Bh3 g2 Ndb5+ Kd8 Rh2 g1B Ng2 Ke7 Rc4 Qfe6 Rh1 f6 Rb4 Qf7 h5 Rg8 h8N Be3 Rg1 f2+ Kf1 Qf5 Rb2 Qh7 Nf7 Qe6 Nfd6 Qef7 Nc3 Rg7 Rb6 f5 Ra6 Ra8 Ncb5 Ra7 Nf4 Ra8 Bg2 Rc8 Be4 Rc6 Bd3 Rb6 Kg2 f1R Qe1 Rf3 Qf2 Rh3 Kf1 Rh2 Qg3 Rf2+ Ke1 Rc6 Ng2 Rb6 Nc7 Rb3 Ncb5 Rc3 Qh2 Rb3 Rh1 Rc3 Qg1 Rb3 Rh3 Rc3 Rg3 Rb3 Nce4 Ke6 Ra7 Rc3 Nc5+ Kd5 Nb3 Rf4 Bc5 Bh3 Bc2 Rf2 Ne8 Ke5 Rg5 Bg4 Be4 Bd4 Bc2 Rh3 Bd3 Qc7 Bb6 Bf7 Rg6 Be3 Rc6 Bg6 Ned6 Qf7 Bc5 Ke6 Rca6 Bg5 Be3 Bd8 Bd4 Bb6 Nc5+
3Bk1B1/Knn3Pn/pP2R1NQ/r1Nr2n1/4PqN1/1b6/2RN3N/q2r3n b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 Bh6 axb5 fxg4 h4 g3 Ra5 g4 Ra1 Bg5 hxg5 Be6 Rh6 Bf5 Rh1 Bc8 d4 c5 Kd2 h5 Kc3 f5 Kc4 f4 b4 a6 e4 g2 d6 g3 g6 f3 g7 f2 d5 h4 d7+ Ke7 Nf3 g1Q Bg5+ Nf6 Ra2 g2 Qd2 Qc7 d8N h3 d6+ Ke8 Nf7 h2 Nh6 Nc6 Ng4 Nd8 Be2 f1N d7+ Kf7 Qd6 Rh5 Nbd2 Nh7 Kd5 Ra7 Bc4 Qb8 Bb3 c4 Rb2 Ne3+ Kc5 Bb7 Kb6 Qa1 Rf1 g1N Qh6 h1N Nfh2+ Nf3 Bf6 Ne6 d8N+ Ke8 Nc6 c3 Ne7 c2 Ng6 c1R Rc2 Rd1 Bd8 Nc5 Bg8 Rf5 Rf2 Nfg5 Rf1 Re5 Rf6 Rf5 Rc6 Qf4 Rd6 Bd5 Rc6 Raf7 Re6+ Kd7 Ka7 Bb3 b6 Rf8 b7 Nd5 b5 Nc7 Rc6 Ke8 b8N Nb7 b6 Ra5 Nd7 Rff5 Nc5 Rd5 Re6+
3R1b2/1N1Pb3/K1N5/Rr3N1q/1N4PB/Pqk2pnr/r3bbrN/1QB5 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 d5 cxd5 g6 b4 axb4 f6 Kd7 f7 Bg7 Ba3 Bh6 Bc1 Bf8 f4 Ra7 g4 Bg7 f5 Be5 f6 Bf4 Bd3 Bh6 Be4 Nc6 Bf5+ gxf5 h3 Ne5 g5 Ng4 hxg4 Bf8 Na3 Ra6 Nb1 Ra8 Ke2 Kd6 Kd3 Kc5 d6 b5 d7 e5 g6 h5 g7 e4+ Kc2 Kd4 Kb3 c5 d3 c4+ Kb2 b3 Qf3 e3 Qe2 h4 Qe1 f4 Qa5 e2 Nc3 e1B Qb4 h3 Nd5 Ne7 g8N h2 Nh6 Qb6 d8N Bf2 Nb7 Nf5 Qe1 Rh7 Nb4 Ng3 Qd1 Be7 f8B Bf5 f7 c3+ Kb1 c2+ Kb2 Qc5 Bg7+ Qe5 f8N Be6 Qf1 Bc4 Nd7 Ra4 Bf8 Qh5 Ne5 Rh8 Bg7 Rc8 Bf6 Rc6 Na6 b4 Bh4 Rc5 Qd1 Rb5 Qe1 Bd5 Qd1 Bf3 Qe1 Be2 Ngf3+ Kd5 Rf1 h1R d4 Rh3 Nh2 f3 Nc6 Kc4 d5 Raa5 d6 Kd3 Bd2 Kc4 Nf5 c1B+ Kb1 b2 Kc2 b1R d7 Rb6 Rh1 Ba3 Bc1 b3+ Kd2 b2 Nab4 Rbb5 Qd1 Bd3 Re1 Bf8 Re8 Be2 Rd8 Ra7 Nd3 Bae7 Qh1 Kd5 Kc3 Ke4 Kc4 Ra3 Bh6 Rg1 Bc1 Rg2 Qd1 b1Q Qc2 Rb2 Qb3 Ra4+ Kb5 Rb4+ Ka6 Rb5 Qd1 Rc2 Qf1 Qb3 Qg1 Kd5 Ndb4+ Kc4 Qd1 Rd2 Qc2+ Qc3 Qb1 Qb3 a3 Kc3 Ra2 Rd3 Rd2 Re3 Rd4 Rd3 Rd6 Rd2 Rd5 Ra2 Nd3 Rb4 Ra5 Rb5 Ndb4
N2bK2B/3Q2Pb/q1bPR1r1/1b1RN3/3P2qN/b1br2N1/2kNp3/1q1B4 b - - 0 1 illegal: No possible last move
n3qB2/Pkn1b1rQ/1P4q1/1p2q2P/3pB2b/2NKb1bB/NR2BB2/R7 b - - 0 1 legal: proof: b4 e5 c4 a5 bxa5 b5 d3 Ra6 c5 Rb6 cxb6 Qg5 Na3 Qh4 Nb1 Qd8 Bh6 e4 Nc3 Bb7 Bc1 e3 Nb1 Be4 dxe4 h5 g4 hxg4 Qd6 f5 Kd1 f4 Kc2 f3 Qd1 fxe2 a4 e1Q h4 c5 f4 d5 a6 Kd7 a5 Kc8 f5 g5 f6 g3 e5 d4 h5 g4 e6 e2 f7 c4 e7 c3 e8B g2 a7 g3 a8B Ne7 a6 Rh7 a7 Na6 Nf3 g1B Ng5 g2 Rh4 Rg7 Bb2 Bf2 Kd3 g1Q Be4 c2 Nc3 c1B Na2 Nc7 Bc3 Ned5 Rh2 Bh4 Bd7+ Kb7 Bdh3 Be3 Qb1 Be7 f8B Qe8 Qc2 Qeg3 Be1 Qe5 Bf2 e1B Be2 Na8 Qc7+ Ka6 Qd7 Ndc7 Qf5 Qg4 Qh7 Qgg3 B4f3 Qg2 Ne4 Qgg6 Bh1 Kb7 B1g2 Qgc6 Nec3 Qg6+ Be4 Qe8 Bg1 Beg3 Bf2 Qg6 Rhh1 Qe8 Rhb1 Qg6 Rb2 Qe8 Bef5 Qcg6 Be4+
N1n5/k5R1/b1R1R3/1p1Pq1np/1B2b2n/Kb1P1rPN/2B3RQ/R2b1n2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bf1 f3 Nh3 g5 Qb3 b5 Qb2 Bd6 Qd4 Bg3+ Qf2 f4 Ng1 Ra6 Kd1 Rf6 Ke1 Rf5 gxf5 Bh4 Qg3 g4 Qf2 g3 Qc5 g2+ Qf2 Bg3 hxg3 Bb7 Qa7 Qd7 Qa4 Bc8 Qd1 Qd8 a4 Kd7 e4 h5 f6 c5 f7 Kc7 f8R Kb6 e5 f2+ Ke2 b3 Kd3 f3 Kc3 b2 Kb3 c4+ Ka2 c3 e6 c2 a5+ Ka7 e7 Nd7 e8R Ne7 a6 Qc7 Rh2 Nf5 Re6 Nh4 Re3 Nb6 Re4 Qe5 Bd3 f1B Qe2 f2 Nc3 b1B+ Ka3 Ba2 Rc4 Bb3 Rf6 Rf8 Re6 Rf3 Nh3 g1N Na4 Bg2 Rcc6 f1B Bg6 Bh1 Rg2 Bb7 Bb2 c1N Bc3 Nc8 Nb6 Bd1 Bc2 Nb3 Qf2 Bc4 d3 Nd2 Bb4 Bb3 Qe2 Nf1 Na8 Re3 Qf2 Ngf3 Qg1 Ng5 Qh2 Qf6 Re7 Qe5 Rg7 Bf3 Re1 Bd1 Ree2 Rf3 Re3 Qb8 Ree6 Qe5 Nc7 Rf6 Re2 Qf4 Kb2 Be4 Rf2 Kb8 Rg2 Ba8 a7+ Kb7 Rd2 Qd6 Rg2 Rf3 Rc5 Kb6 Rc3 Bc6 a8R Bb7 Ra1 Ba6 Rc6+ Ka7 Ka3 Qe5 Na8+
kB3qnB/n5nK/n7/2b2N1N/2P1PP1Q/2Rpp2B/B2r1Rp1/1B1br3 b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 e5 d4 h5 a4 f5 Qd3 f4 dxe5 Be7 axb5 Bf8 g4 hxg4 Qe3 fxe3 Ke2 g5 h4 a5 f4 d5 c6 g3 Kf3 g2 c7 Kd7 Kg4 a4 Kf5 g4 Kg6 a3 e6+ Kd6 e7 d4 e8B a2 b6 g3 h5 Qd7 h6 Kc6 h7 Kb7 Na3 Bb4 Bf7 Na6 Bd3 Qe7 Ne2 g1N Rh2 Qf8 Nc4 Bg4 Bb2 Bc5 Rf2 g2 Ng3 Ne2 Rc1 a1N Nh5 Rd8 c8B+ Ka8 Nd6 Nc3 Nf5 Bd1 Ba2 Nb5 c4 Nb3 Bdb1 Na7 Rcc2 d3 Rc3 Nd4 Ba1 Ne6 Bd7 Ng7 b7+ Kb8 Be6 Rd6 Bb2 Rb6 Ba1 Rb2 Bd7 Kc7 b8B+ Kb7 Be6 Rd2 Bd7 Nf6 Kh6 Rg8 h8Q Ka8 Qh7 Rh8 Kg6 Ng8 Bc8 Ne8 Qe7 Rh7 Qh4 Rb7 Bd7 Ng7 Kh7 Rb6 Nfg3 Rbb2 Bh3 Re2 Nf5 Rbd2 Rc2 Re1 Rc1 Ne8 Bh8 Ng7 Rc3
r1n1b2K/1P3kr1/8/R1Qp1NNP/4qB2/p2bb2N/qPN3Rp/b1B1N3 b - - 0 1 illegal: No proof kernel
1Bk5/1qpRBRnp/7n/3P1NBN/n7/3P2BK/BpPp2r1/b1qbQ3 b - - 0 1 illegal: No proof kernel
qb5R/p3R1Np/P1P2p1P/3p2R1/8/KBQr1r2/3nq1Nr/k3nBRR b - - 0 1 legal: proof: f4 g5 a4 gxf4 c4 e5 b4 c5 bxc5 b6 d4 Ba6 dxe5 Qc8 a5 Bb7 a6 Qd8 Bd2 Bc6 Ba5 Bb5 cxb5 bxa5 Kd2 Ke7 Kc2 Ke6 Kb2 d5 h4 f6 g4 a4 e4 f3 g5 f2 b6 Qd6 h5 Nc6 g6 Nh6 g7 Rc8 g8R Na5 b7 Ng4 b8R Ne3 h6 Nc2 Qc1 Qd8 Ne2 Bd6 Ng3 Ne1 Ka3 Nb3 Rg5 Re8 Qc3 Nd2 Nh5 Bc7 Rb7 Bb8 Rf7 Re7 Rf8 Rb7 Rh8 Rb2 Rhg1 Qe8 Rh1 Qc6 Rhg1 Qa8 Ng7+ Kd7 e6+ Kc6 e7 Ra2+ Kb4 a3 e8R Rc2 e5 a2 e6 Rc7 Bd3 f1R e7 Rf3 Na3 Rb7+ Ka4 Rb3 Bf1 Rcb2 Rc1 a1Q Rd1 Qb1 Nc4 Qd3 Ne3 Qe2 Ng2 Rc2 Qc4 Rbe3 Qc3 Rd3 Ka3 Kb5 Ref8 Qb7 e8B+ Qc6 Bg6 Qa8 c6 Rb2 Qb3+ Kc5 Rf7 Kd4 Rh1 Rc3 Bb1 Rcd3 Ba2 Rc2 Re7 Rb2 Ka4 Rc2 Qa3 Rb2 Bb3 Kc3 Rg1 Rc2 Qc5+ Kb2 Rh1 Nb1 Rc1 Ka1 Qc3+ Rb2 Rc2 Nd2 Ka3 Qe3 Rg1 Qe2 Rc1+ Nb1+ Kb4 Qd2 Rh1 Qc2 Nf4 Ng2 Be2 Qd2 Rcf1 Ne1 Rfg1 Qe3 Bf1 Qe5 Qc1 Rh2 Ng2 Qe2 Qc4 Nd2 Ka3 Bg3 Qc5 Bb8 Qc3+
RN1NQbb1/nP1N3r/5r2/K1RqbNq1/2N1kn2/b5PB/n5Pr/2B2b2 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 f5 axb5 fxe4 d5 g4 d6 g3 hxg3 cxd6 Ke2 d5 Ke1 d4 Kd2 Kf7 b4 Kf6 c4 Ke5 f3 h5 b6 a5 c5 d5 c6 d3 Kc3 h4 c7 a4 b7 d4+ Kc4 a3 Kb5 a2 Qa4 d2 Rh2 d1N Nc3 h3 Be3 d3 Nd5 d2 Qa5 Ra6 Bh6 e3 f4+ Ke4 f5 e5 f6 e2 f7 e1B Ne7 Rf6 Ng6 Ne7 Qa4 Be6 c8N Nbc6 b8N Na7+ Ka6 Qd5 Bf4 Nc3 Be2 d1B Qe8 Rh7 Nh8 Ng6 Bc1 Nf4 Bg4 Be2+ b5 Bf1 Ka5 Ba3 f8N Bg8 Rh1 h2 Nfd7 Bf2 Bh3 Bfc5 Nf3 Bf8 Rg1 h1R Nh4 Rh2 Rh1 Qf7 Nf5 Qd5 Rb1 a1Q Nf7 Na2 Ncb6 Qad4 Nc4 Q4c5 Nd8 Qe7 Ka4 Qg7 b6 Qg5 b7 Kd3 Ne7 e4 Rb6 e3 Rb5 e2 Rc5 e1B Nf5 Bc3 Rg1 Be5 Ka5 Be2 Rf1 Ke4 Rf2 Bf1 Rb2 Be2 Rb6 Bf1 Ra6 Nc8 Ra8 Na7 Qf7 Qe6 Qh5 Qd5 Qe8
1B1rr2B/r2B4/5b1q/Br3P2/1qrk1N2/PrBn1K1R/4PR1N/Qb3n1n b - - 0 1 illegal: No possible last move, all moves rejected
r5N1/N2q1nNB/1Bnb4/1P1KPr1R/2P5/R1qbQ1nN/kn2b3/4Nn1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 f5+ Kf3 Kd5 b4 Kc4 e4+ d3 b6 d5 e5 a5 b5 a4 h6 d4 c3 a3 h7 g4+ Kf2 a2 b7 g3+ Kf3 g2 h5 Nh6 Rh2 Bd6 Qe1 Kb3 c4 d2 Bd3 d1N Be3 Nf2 Na3 Rf8 h8N Nh1 Nf7 Qc7 Be4 d3 Nd8 d2 Nc2 d1N Bb6 Be6 Bd3 Qd7 Qe3 Rf7 Rc1 a1Q Ne1 Qc3 Rb1+ Ka2 Rb3 Nb2 Be4 Bd5 Ne6 Rf6 Rh4 Nf7 h6 Bc6 Nh3 g1N+ Kg2 Bd5 h7 Ne2 h8N Bc6 Rh5 f3+ Kf1 f4 Bh7 Be4 Ng6 Bd3 Ng7 f2 Kg2 f1B+ Kf3 Rf5 Ne7 Na6 b8N Nb4 Kg4 f3 Nbc6 Neg3 Ng8 Bfe2 Na7 Rg5+ Kf4 Nc6 Qc1 f2 Ke3 f1N+ Kf4 Bg6 Qe3 Nf5 Ke4 N5g3+ Kd5 Bgd3 Ba5 Rf5 Bd8 Bc2 Bb6 Bcd3 Ra3+
2R2n1K/bB2P1rB/b2PrRNq/kB3B2/3Bb3/n3PQ2/1q2b3/2bb1n1N b - - 0 1 legal: proof: f4 a5 h4 d5 c4 dxc4 b4 g5 hxg5 e5 fxe5 axb4 Kf2 Kd7 Kg3 Kc6 Kf4 Kb5 a4+ Ka5 d4 h5 g4 f5 e6 b5 Ke5 c5 e3 h4 g6 b3 g7 b4 d5 b2 g5 f4 g6 c3 Qd2 b3 Qe1 c4 Bd3 f3 Qf1 h3 Ra3 c2 Be4 c3 Ra2 h2 Nd2 b1B Nh3 f2 Bb2 c1Q Nf3 c2 Bf5 Rh7 Bd4 b2 Nh4 Ne7 Kf6 Qb6 g8B Rg7 Bh7 Ra6 Qe2 f1B Qf3 Bd3 Nf2 Be2 Rf1 h1B Ra3 Ba2 Rc3 b1N Rc7 Bg2 Nh1 Na3 Rc4 Bb7 Rc8 Qcb2 Rf2 c1B Rf1 Kb4 a5 Bb3 Rf2 Bbd1 Rf1 Ra8 a6 Ka5 a7 Bba6 Rf2 Qd6 Rf1 Qf4 d6 Qh6 Qf4 Be4 Qf3 Rg8 Kf7 Nd7 g7 Rb8 a8B Rb4 Bfg6 Nf5 e7 Ng3 Bf5 Ra4 Rf2 Nf1 Ng6 Rc4 Bc6 Rc5 Bb5 Re5 Qg2 Re6 Qf3 Rh8 g8B Bg7 Ba7 Nf8 Bc5 Bc3 Bd4 Qh3 Kg7 Bb4 Nf4 Bc5 Ng6 Ba7 Bf7 Qh2 Bfe8 Qh4 Bec6 Qf4 Bb7 Qg5 Bg8 Rh3 Bh7 Rg3 Kh8 Qh6 Qh5 Rg1 Rf4 Rg3 Qf3 Rg2 Bg4 Rg1 Rf6 Rg3 Bf5 Rg2 Nh4 Rg7 Ng6
q2bBBqb/2bP1r1Q/n4r2/P2N4/2Bq2B1/1nP1Rb2/Rbk2K2/b4B1N b - - 0 1 illegal: No proof kernel
BBB1K3/n5q1/2Pb3q/2Nb1rb1/1q1PPrbr/nq1NR2B/k5R1/5B1Q b - - 0 1 illegal: No proof kernel
N3r1Bk/1Kbqq1B1/P3bRr1/P4qn1/B1B2b2/B2R4/1bP1rQ2/1n3r1N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 fxe5 c5 d4 cxd4 Kf2 f5 a4 Kf7 h4 b5 e4 d5 a6 g5 h5 Kg7 e6 b4 a5 d3 Ke3 d4+ Kf2 g3+ Kf3 g2 e5 d2 e7 d3 e8B g4+ Kf4 b3 e6 b2 Ke5 f4 e7 f3 Be2 g3 Bc6 f2 e8B f1Q Bf7 Nf6 Ba4 Nd5 Ke4 Qf5+ Kd4 Rg8 h6+ Kh8 h7 Nd7 Bc6 Bd6 Ba4 Bc7 Bfh5 Nc3 Rh3 Nf8+ Bd7 Rg6 Qf1 d1R Nd2 b1R Ba3 Re1 Qf2 Qe7 Nc4 d2 Ba4 Be6 Nb6 Re8 Bc4 Re2 Na8 Rf1 Bf3 Bf4 Bfd5 Nb1 Rh6 Bc7 Nh3 g1B Ra2 g2 Rb2 Bd7 Bg8 Bgh2 Rb3 g1B Rd3 Bhe5+ Kd5 Be6+ Kc6 d1Q Kb7 Bgh2 Qh4 Bhg3 Nf2 Bgf4 Nh1 Bb2 Qf2 Qd2 Re3 Qdd7 Rd3 Rg2 Rf6 Rg6 Bcb5 Ba2 Bbc4 Ne6 Bf7 Ng5 Bfe6 Kg7 h8B+ Kh7 Bg7 Bb3 Bh6 Kh8 Bg8 Ba2 Bcb5 Bf7 Bc4 Be6 Bg7+
b1N5/krrn1b1p/4R2q/nqQRn1PP/3KB3/R2R1P2/3b2q1/NB3r1R b - - 0 1 legal: proof: a4 b5 axb5 g5 d4 c5 f3 cxd4 Be3 f5 Kd2 g4 Bf2 g3 e4 gxf2 exf5 Qa5+ Ke2 Qc7 Kd2 Qd8 Kd3 a5 b4 e5 g4 d5 c4 Kd7 h4 Kc7 b6+ Kb7 h5 a4 b5 e4+ Kc2 d3+ Kc3 e3 g5 a3 c5 e2 f6 e1N f7 d2 Kd4 a2 Nh3 Nd3 Qe1 d1R Nf4 Ne5+ Nd2 Qd7 Qe3 Ra7 Bd3 f1Q Be4 Ne7 c6+ Ka8 c7 Bb7 c8B Qg2 Qf2 Rf1 Nb3 Bg7 f8R N7c6+ Kc5 d4 Rf5 d3 Nd5 Na5 Kd4 d2 Rd1 Nac4 Na1 Na5 Rf6 Qd6 Bcf5 Rc8 Re6 Nbd7 Qg1 Bc6 b7+ Kb8 Bb1 Rc7 Bfe4 Qf8 Nb6 Bh8 Nd5 Qh6 Nb6 Bf6 Qe3 Be7 Qc3 Bb4 Qc5 Bd5 Rc1 d1B Rc3 Be2 Rd3 Bd2 Ra3 Bec4 Rd3 Ra8 Ra3 Ka7 b8R Bb7 Rd8 Rb8 Rd3 Ba8 Ra3 Nf8 Rd5 Rbb7 Nb3 Rd7 Rf6 Qe2 Rdd6 Bf7 Rd5 Bf4 Na4+ Rb6 Re6 a1Q+ Qc3 Qab2 Na1 Qbc2 Qc5 Qg2 Rd3 Bd2 Ra3 Kb7 Rd3 Rc6 b6 Kb8 Ra3 Qb3 b7 Qb6 Rd3 Ka7 b8R Rd8 Bf5 Nfd7 Be4 Rc7 Rb7+ Ka6 Ra3 Rb8 Rd3 Qc6 Rbb3 Rbb7 Nb6 Qb5 Ra3 Ka7 Nc8+
3bn3/1R3rQP/3r2N1/2k1KNBR/B2Pb3/RPr1nq1p/3r4/1brn1RR1 b - - 0 1 illegal: No possible last move, all moves rejected
b5R1/r2rknPR/n1qn4/KB4R1/1BRPb1P1/4n3/1n2p2b/1r1NN1RQ b - - 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 g5 hxg5 dxc4 d4 a5 Kd2 c5 Kc3 h5 b4 e5 g4 a4 f4 a3 b6 h4 f5 e3 f6 h3 b5 h2 g6 e2 f7+ Ke7 b7 e1R b6 e4 g7 e3 Qd3 a2 Nd2 e2 Rb1 a1N Ngf3 Qc7 Ba3 Bf5 Ne5 Ra7 Qf3 Be4 Bg2 Na6 b8R Qc6 b7 Nh6 Qf1 Nc2 Rb2 Rb1 Rc8 Ne3 b8R Nhf5 Qf3 Nd6 Rg1 h1B Nd3 Rh5 Qf1 Rd5 Bf3 Bg2 R2b5 Bh1 Qd1 Bg2 Nf1 Bh1 Kd2 c3+ Ke1 Qe8 Nb2 Bc2 Nd2 Ndf5 Rc6 Kd7 Rf1 c4 Bg2 Bd6 f8R Ke7 Rh8 Qc8 Rbc5 Bh2 Nf3 Rdd7 Rh7 Nd6 Rf5 Qc7 Rg8 Bd3 Bc5 c2 Kd2 c1N Kc3 Bc2 Rg5 Nd3 Qe1 Ne5 Nd1 Nf7 Ba3 Bf5 Bc5 Be6 Ba3 Bd5 Rc5 Ba8 Qh4 Bf4 Ne1 Qb7 Bd5 Qc6 Rg1 Be4 Qh1 Bh2 Nb2 Nc7 Kb4 c3 Bc4 c2 Bb5 c1N Rc4 Na6+ Ka5 Nd3 Nd1 Nb2 Bb4
4nk1B/2rb1pb1/P1rq4/1Rn1nP1N/2PBr1B1/B3QN1r/1r1bR3/3K1B2 b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 b4 cxd4 Bg5 axb4 Bh4 Rh6 Bxe7 Rh8 f4 g5 h4 b5 a4 d5 e4 b3 c4 g4 f5 g3 a5 b2 h6 g2 a6 b4 h7 b3 e5 d3 h5 d2+ Ke2 d4 h6 d3+ Ke3 Bd7 e6 Ra7 Ra3 Rc7 Bc5 Nc6 e7 Ne5 Bb4 Nf6 Qe2 d1R Bd6 d2 Nf3 Re1 Nc3 b1R Rh2 d1N+ Kd2 g1B Qe3 b2 Re2 Bg7 Rb3 Nf2 Nd5 Nfd3 Nf4 Nc5 Rb5 Rbd1+ Kc2 b1R Nh5 Rd5 Rb6 Rd4 Rb5 Re4 Kd2 Rb4 Kc2 Reb1 Kd2 R1b2+ Kd1 Rg8 h8B R4b3 h7 Rf8 Qd2 Be3 Qd4 Bd2 Qe3 Nb7 Ba3 Nc5 Rb7 Rb6 Rb8 Rbc6 Rb5 Bh6 Bg7 Rg8 Bh8 Rg3 Bg7 Rh3 h8B Be6 Nh4 Qd6 Nf3 Kd7 e8B+ Ke7 Bd7 Ne8 Bc8 Bd7 Bb7 Nf6 Ba8 Ne8 Bf6+ Kf8 Bb7 Ned3 Bd4 Ne5 Ng3 Rb6 Nh2 Reh4 Nh5 Bg7 Bf3 Re4 Bg4 Rbc6 Nf3
3r1R2/p1k2NR1/n1P1r1nb/1PQ1b3/1r3B1b/Pr2N3/2Rq2Rn/1R2rBK1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c3 b5 c4 bxc4 d3 c5 Bf4 c3 Bg3 c2 Bf4 c4 Be3 c3 Bh6 Ba6 Bc1 Bc4 dxc4 Qc7 Qd2 Qa5 Qd1 Qd8 g4 h5 f4 d5 Kf2 Kd7 b4 e5 a3 e4 f6 d4 f7 h3 f5 e3+ Ke1 d3 g5 h2 f6 d2+ Ke2 h4 c5 h3 b5 Bd6 f8R Na6 c6+ Kc7 f7 Ne7 g6 Rh4 g7 Rb4 g8R Be5 Rg5 Ng6 Qe1 d1N Rh8 Qd2+ Kf3 e2 f8R Ne3 Kf2 Rd8 Qd1 e1R+ Qe2 Rb3 Rg2 Rb4 Ra2 Ng4+ Kf3 Rb3 Qf2 Re4 Rhg8 Reb4 Bb2 c1B Qc5 c2+ Nc3 Qh6 Ke2 Bg5 Nf3 c1B Nd1 Bh4 Ng5 Bd2 Rhg1 h1R Bc1 h2 Nf7 Qf4 Rg7 Qd4 Bb2 Bh6 Ne3 Qd2+ Kf3 Qd3 Rc2 Qd2 Rg2 Rg1 Bc1 h1R Rab2 Rh2 Rb1 Rhh1 Be2 Re1 Bf1 Rg1 Re2 Rh1 Kg2 Rh3 Kg1 Nh2 Rg2 Rf3 Bb2 Rf6 Bc1 Re6 Ng4 Qd1 Bf4 Qd2 Ne3
RNK1nB1r/Q1B3kn/3r1R1r/2P1NB1q/P2P4/4b3/qB3n1p/2Bnnb2 b - - 0 1 illegal: No proof kernel
1qRKBbB1/kBBn4/4qP2/Q2P4/b4PrN/2qbr1R1/Bp1nq3/1q4N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 dxc4 Ke2 Kd7 Ke3 Kc6 Ke4 Kb6 Ke5 c5 f4 h5 a4 b3 d4 h4 g4 c3 a5+ Ka7 d5 b5 g6 c2 g7 b4 a6 b2 g5 c4 g6 c3 Rh3 b3 Qf3 Nf6 g8B Bd7 g7 Ba4 Ke6 Nbd7 Ne2 Qb8 Bf7 Ne4 g8B Nd2 Rh2 h3 f6 Rh4 Ra3 Rg4 Rf2 h2 Be8 h1Q Ng1 Qh3 Bc4 Qg2 Kf7 e5 Qe4 Qf3 Qe1 e4 Rg2 e3 Rg3 e2 Ra1 Nf1 Nd2 b1B Ba3 c1Q Bd6 c2 Bc7 b2 Ba2 Qe4 Ndf3 Nd2 Nh4 Qg2 Qf1 e1Q Qb5 Qge2 Qa5 Qcd1 Rf3 c1Q Rg3 Bd3 Rb1 Qc3 Rc1 Qbb4 Rc2 Qb1 Rc1 Rc8 Rc2 Ka8 a7 Qb8 Rc1 Q1f2 Rc2 Qfb6 Rc1 Kb7 Rc2 Qa6 a8B+ Ka7 Bb7 Qd4 Be5 Rc3 Rc1 Rb3 Rc8 Qc3 Bc7 Rb6 Nhf3 Re6 Nh4 Re3 Be5 Bh6 Ke7 Bg7 Kd8 Bf8 Qb5 Qb6+ Bc7 Qe6 Qa5+
1n1nq2B/K2n2q1/P3b1p1/3QP1kr/1R2nR2/bn1NPR1r/2N1B2b/5R1R b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Ke7 Ke3 f5 Kd4 c5+ Kc4 b5+ Kb3 g6 a4 c4+ Kc2 b3+ Kc3 g3 Kd4 c3 Kc5 f4 d4 f3 h4 c2 a5 b2 h5 b4 a6 g2 h6 b3 h7 f2 Bd2 c1N Na3 b1N Nf3 g1B Nc2 b2 Bc3 Bh2 Nfe1 Nf6 Nd3 Qe8 Kb6 Na3 d6+ Ke6 d7 Kf5 d8R b1Q+ Bb2 Be6 Rd7 Nb3 Rf7 Kg5 Rb7 Rg8 h8R Nb5 Rh3 Rh8 Rf3 Rh5 Rf7 Nc7 Bc3 Ne4 R7f4 Nf6 Ra4 Ba3 Rb4 Qa1 Kb7 Nbd7 Bb2 Rd8 Ka7 Nb8 Nc5 Qc1 Re3 Qe7 Rc3 Rdh8 Rcf3 Rh3 Bc3 R8h5 d5 Qd2 e3 Bf5 d6 Qe8 d7 Ne6 d8R Kh6 Bd3 f1N Be2 Ng3 Rd5 Qd3 Be1 Nge4 Bh4 Nd8 Rd7 Be6 Rd5 Nh7 Bf6 Nf8 Bh8 Kg5 Qd2 Qc3 Qd3 Qd2 Qb5 Qc3 Rdd1 Qd4 Rdf1 Qdd7+ Qb7 Qg7 Nd3 Nfd7 Qd5
1b4B1/3Pq2r/2k1N2n/r2NQr2/B1bn3r/rn2R1P1/1Kp1P2q/3BB1BR b - - 0 1 illegal: No possible last move
1rRR1Bb1/nn6/r2PR2N/1bp4r/2R1q1k1/b2PnR2/2Q3BP/1bq2NK1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Ke7 e4 Kf6 b4 Kg5 d6 a5 b6 f5 e5 g3+ Kg2 a4 e6 a3 b7 a2 e7 Nf6 e8R Rh5 Be2 f3+ Kf1 g2+ Kf2 f4 Ba3 Bf5 Re7 Nfd7 Re5 Nc5 Re4 Nc6 b8R Qe8 Rd8 Ra6 Qc2 Na7 Qc4 Be6 Qb3 Bg8 Bf1 c6 Ne2 g1R Nd4 g6 Ke1 f2+ Ke2 Rg3 Nf5 f3+ Ke3 Rg4 Nh6 Rg1 Bh3 f1B Kf2 Bd3 Qc3 Rd1 Rhe1 Bc2 Kf1 f2 Rc4 Be4 Qb3 Kf4 Qb2 g5 Qc1 g4 b5 g3 b6 Bg7 b7 Bb2 Bb4 Ba3 Bc3 g2+ Ke2 g1Q b8R Qg5 Bg2 f1B+ Kf2 Qe6 Bg7 Qed5 Rc2 Bf5 Nf7 Kg4 Bf8 B5d3 Re6 Qe4 Rbc8 Re1 Nc3 Qh6 Qb2 Rb1 Kg1 Qg5 Qc1 Rb8 Ne2 Nb7 Ng3 c5 Qb2 Bfe2 Rf1 a1N Rf3 Qh6 Rc3 Bb1 Nf1 Bb5 d3 Qc1 Rc4 Nc2 Qb3 Ne3 Nh6+ Kg5 Qc2 Kh4 Nf7 Kg4 Nh6+
Bk1qBn2/b2BB1Pq/3nRKb1/r1R2bQB/1N5P/1n3p2/2Pb2N1/r3q3 b - - 0 1 illegal: No proof kernel
2qQ3k/1q2NP2/N1nb3K/N2b1B2/P2np1r1/P2r2N1/rrN2BR1/1qR3b1 b - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 e5 a4 b3 f6 bxa4 fxe5 Be2 e4 Ba6 Bh3 Bf1 Bc8 Ke2 e3 Kf3 Kf7 Kf4 Kg7 Kg5 h5 d4 b5 f4 c5 g4 c4 d6 c3 f5 b4 d5 c2 d7 e2 d6 e1B a3 b3 Qe2 b2 Nd2 b1R Qf3 h3 Ne2 h4 Ra2 h2 Nb3 h3 Na5 Bb7 Be3 c1Q Qd5 Rh4 f6+ Kh8 f7 Bf2 Ng3 Nh6 Bd3 e5+ Kg6 Qe1 g5 Nf5 Be4 Qb4 Rc1 Rg4 Kh5 Qb2 g6 h1Q Qd1 Qc7 d8N Bg1 d7 Qhg2 Qd3 h2 Ndc6 Ra7 d8N Qc8 Nb4 Qgc2 Bc6 e4 Ne6 Ra1 Na6 Qcb1 Qd8 h1R+ Qh4 Rh2 Nd4 Rd2 Qd8 Rd3 Bd7 Bd5 Be6 Qb4 Rg2 Ra2 Nc2 Rb7 Bf2 Nd4 Bd7 Nbc6 g7+ Kh7 g8N Bd6 Bf5+ Kh8 Kh6 Qb6 Rh2 Qbc7 Rg2 Rbb2 Rh2 Q8b7 Rg2 Qcc8 Ne7+
3b1NK1/1P5R/qR3BP1/1PQ2bb1/q2nr1p1/NB5B/BB3n1q/4rrkb b - - 0 1 illegal: No proof kernel
1R2NK2/P5n1/1b2N3/q1rqP1n1/Q1rb1P2/1bpR4/1R1B1n2/rBkn2RR b - - 0 1 illegal: No proof kernel
q2r3R/P1n2N1b/pr2r2R/1N1r2b1/3B1k2/n3qRR1/B2P1P2/R1q2QbK b - - 0 1 illegal: No possible last move
Q5q1/p2PK1B1/3PP1bn/4n2r/2q3BB/N1q3BR/B1N2nR1/q2bb1kr b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 h5 g4 f3 g5 f2 d6 h3 g6 h2 g7 h4 d7 f4 Ke6 Kd4 b4 c5 e5 h3 b6 f3 d3 c4 b5 c3 b7 c2 Bb2+ Ke3 d4 c1Q d5 Qc3 Ra3 Nc6 b8B Bb4 Ne2 Nh6 Nd4 Qg8+ Kf6 Rh7 Be2 f1Q Nc2+ Kf2 b6 Ba6 b7 Bd3 Bd6 Bg6 b8B Kg2 Ra2 f2 Bg4 Qfc4 Nba3 f1B Be7 Be2 Qd4 Bd1 Qe4+ Kf2 Bc7 Rb8 Bcd6 Rb5 Bd8 Qe8 g8B Ba5 B8e6 Qg8 B6c7 Qe3 Bf7 Be1 Ke6 Qec3 Bg5 Nd4+ Ke7 Nf3 Bh4+ Kg2 e6 Ra5 Bcg3 Rc5 d6 Rh5 Qa8 Rh8 Rf1 h1N Be8 Nf2 Rh1 h2 Bf7 Qa5 Bg7 Qac3 Be8 Be4 Bg6 Ne5 Rf1 h1Q Bh7 Nh3 Rf3 Kg1 Bg6 Bd3 Be4 Rh7 Bd5 Bg6 Rb2 Nf2 Re3 Q4d4 Ba2 Qdc4 Kf6 Qb7 Nd4 Rf5+ Ke7 Ne4 Bf4 Nhf7 Bhg5 Rh1 Rh2 Nh6 Reh3 Qb1 Bh4 Rh5 Bfg3 Nf2 Ndc2 Qba1 Rg2+
2b2rbR/2nrB3/Rb5N/1Q1NKP1q/2P4P/1b4pb/R1B1R3/krb3nR b - - 0 1 illegal: No possible last move, all moves rejected
k1rRb1r1/2n5/1P1Qr2b/p7/1rP3Pr/nBnBBBBq/1K1N4/3R1N1r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 d5 b4 Kd7 g4 Kc7 e4 Kb7 c4 h5 Kc2 a5 e5 f5 g6 h4 e6 d3+ Kb2 h3 b6 d2 e7 d4 e8B h2 b5 f3 g7 d3 Qa4 d1N+ Ka2 f4 Bh3 d2 Qc2 f2 Bf1 f3 Qb3 Nf6 g8B Ne3 Nc3 d1R Be2 f1R Na4 f2 Nf3 Bh6 Be6 Rg8 Kb2 Ne4 Nc3 Qh4 Qb4 Qh3 Nd2 Rde1 Qd6 Na6 Bf3 Bd7 Ne2 Rc8 Bf5 Ka8 Ng3 Nc7 Bfg6 Rg1 Ngf1 Nc2 Ra3 Re3 Rd3 Na3 Rd5 Nc3 Bd3 Re6 b7+ Kb8 Beg6 Be8 Bh7 Ka7 b8B+ Ka8 b6 Rg3 Rg1 h1R Bc2 Rg2 Bhd3 Rgh2 Ba4 Qg3 Bb3 Rh4 Ne3 Qh3 Rd1 f1R Rd4+ Bc6 Rd5 Re1 Nef1 R1e3 Qh2 R3e5 Rd8 Rb5 Qd6 Rb4 Qc5 N7d5 Bg3 Bd7 Qd6 Be8 Ne4 Nc7 Be3 Bb5 Ned2+ Bc6 Ne4 Be8 Ned2+
b1nr2n1/BN2R2P/2KB1B2/1rP1P1b1/1kN1Q3/q1pnn3/1bB5/R2n1B1b b - - 0 1 illegal: No proof kernel
1R6/4qN1P/R2r4/K1Q2Brr/nB2b3/1r1kP3/nPbbp3/bRR2RnN b - - 0 1 illegal: No proof kernel
B1qn1kb1/8/1rqN1n2/1bN1R1N1/Rr1br1P1/1p2N3/1PQ1P2K/N1B1rb2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 c4 d5 cxd5 e5 Qc2 exf4 Qd1 b4 Rh3 Qd7 Rh1 Qb5 axb5 Bf5 Nh3 Bg4 Ng1 Bc8 Kf2 a5 g4 c5 Kg2 f5 d4 h5 b6 b3 d6 c4 d5 h3+ Kh2 c3 b7 c2 Ra2 a4 Nd2 h4 Qe1 a3 Ngf3 Nc6 b8N Be6 Qg3 Ra6 Kg1 h2+ Kg2 h3+ Kf2 Nf6 Nd4 f3 Nc4 f4 Be3 c1Q Rg1 h1Q Nc2 h2 d7+ Kf7 Bg2 Bc5 d6 Re8 d8N+ Kf8 d7 Rb6 Nb7 Bg8 Ra1 a2 d8N Re5 Nf7 Nd8 Rd1 Ree6 Rb1 a1R Nbd6 Ra4 Na6 Rab4 Rd5 Bd4 Ra1 Re5 Ra4 Re7 Na5 Re5 Na1 Qc8 Qh3 Qhc1 Ng5 h1B Rc5 Qc4 Kg1 f2+ Kh2 f1R Rd5 f3 Qh7 f2 Bc1 Re1 Qc2 f1B Rb5 Q4c7 Ba8 Bc6 Nac4 Re4 Re5 Bb5 Nc5 Qc6 Ne3
2R2B2/2P1Bq1k/3b1B2/K3RPN1/b3nQq1/1pBrbqP1/B3nr2/q4bN1 b - - 0 1 illegal: No proof kernel
bN3B2/1rP2nNp/1q1bRn1b/2k5/P1NqQb2/3N1P1R/1n2K1n1/2NB3r b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 g4 d5 c4 Kd7 a3 Kc6 g6 b5 g7 e5 g5 e3 f3 b3 g6 e4 Rh3 e2 Qd4 b4 Qf6+ Bd6 Rg3 d4 Qf5 b2 Qe5 b3 Bh6 d3 Rh3 Nf6 g8N Nbd7 g7 Bb7 Nc3 b1N Na4 Nc3 Nb2 d2+ Kf2 Qb6 Re1 Ncd5 Nd3 b2 a4 b1Q Qe7 Ne3 Qe8 Rd8 Ne7+ Kc7 g8N Q1b2 c6 Ng2+ c5 Ba8 Qg6 Ne5 Nf5 Nf7 Nge7 Rc8 Bf8 Qd4+ Ne3 Rb8 Nf5 Rg8 Ng7 Rb7 Qf5 Kb8 c7+ Ka7 c8N+ Ka6 Rd1 e1B+ Ke2 Beg3 c6 Bgf4 Nc4 e3 Re1 d1N c7 Nb2 Qe4 Bh6 Na7 Bhf4 Nh5 Rg6 Nc6 Rh6 Ng7 Rh4 Rg3 Rh1 Rh3 Bh6 Na3 Bhf4 Nb8+ Ka5 Rc1 Bh6 Rc6 Bdf4 Re6 Bd6 Nc1 Kb4 Nc4 Kc5 Rh2 Ng8 Nh3 Nf6 Nf4 Nd3 Kd1 e2+ Kd2 e1B+ Ke2 Bf2 Rh3 Bg3 Kd2 Nfe5 Be2 Nf7 Bd1 Nb2+ Ke2 Bh2 Nd5 Be5 Nb4 Bef4 Nbd3+
K3R2b/n1pR2b1/3NPN1N/2k1q2P/1q1P1brQ/N1N5/b3rBB1/1q4qn b - - 0 1 illegal: No possible last move, all moves rejected
b1b1qk2/PBK1b1p1/2b1P2B/2RrBq2/3B2R1/1qb3Pr/5NQN/1B1r3n b - - 0 1 illegal: No proof kernel
K2NBk1n/3Nb1r1/P1P1Q1p1/Rb2r3/5n1B/4bn1R/1r3nPN/1N1b1nN1 b - - 0 1 legal: proof: e4 a5 d4 c5 h4 cxd4 b4 axb4 h5 f5 exf5 g6 h6 Qb6 Ba3 Qf6 Bc1 Qg7 hxg7 Ra6 Bd2 Ra7 Bc1 Ra8 Ke2 d5 Kf3 h5 c4 e5 a4 b5 a5 h4 c5 b3 c6 b2 f6 b4 Bh6 b3 Rh3 e4+ Kf4 e3 Ke5 d3 f4 d2 f5 d4 Kd5 d3 Bg5 e2 Na3 e1B Re3+ Ne7+ Kc5 b1R Kb6 h3 g8N b2 Rf3 h2 Rh3 h1N Rf3 Ra7 Nh6 Nd7+ Kb5 Ng3 Ng4 Bf2 Qc2 d1B Bh4 d2 Nh2 Nd5 Qc4 Be7 f7+ Kf8 a6 Ne5 Qg4 Be6 Bc4 Nf1 Rh3 Nf4 Qe2 Be3 Bd5 Kg7 f8N Nf7 Nd7 Rh5 f6+ Kg8 Ka5 Nh8 f7+ Kg7 f8N Re5 Qc4 Beg4 Qe4 Bge2 Ne6+ Kf7 Ra2 Bb5 Nd8+ Kg7 Bf7 Rc7 Nc5 Kf8 Kb6 Bd6 Bc4 Rg7 Bf7 Be7 Ka7 Bg4 Ka8 d1N Kb7 Nf2 Ka8 Bd1 Ra1 Rc1 Be8 b1N Ra2 Nbd2 Nb1 Nf3 Ra5 Rc2 Qc4 Re2 Qe6 Rb2 Nd7+
2RQ2N1/p3Bnrr/Pb6/1r3r2/r2nPqB1/1k2NrPB/4Brr1/R3K1B1 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 f3 e5 Nc3 e3 Nb1 Bf5 Ke2 Be4 Na3 Bd5 Kd3 e4+ Kc3 e2 Nb1 e3 Kb2 Na6 Kc3 Be4 fxe4 Nb8 a4 Kd7 d4 Kc6 g3 e1R a5 f5 a6 b5 Ra2 h5 Nh3 f4 Nd2 f3 Rh2 b4+ Kd3 Kb5 d5 b3 c4+ Kb4 c6 f2 c7 e2 c8B b2 c5 b1R d6 Nh6 c6 Qf6 d7 Rg8 d8B Nf7 c7 Nc6 Bg4 Bc5 c8B Qf4 Ng1 h3 Rg2 h2 Bb6 h1R Bgd7 h4 Rc2 h3 Rh2 Nd4 Ngf3 Rg7 Ne5 Rg1 Ng6 Rg2 Rh1 h2 Nc4 Kb3 Ba3 Ra1 Rg1 h1R Bg4 Rhh7 Ne3 Rb8 Kd2 Ra2 Bb4 Ra4 Ne7 Rb7 Ng8 Rb8 Bd8 Rb5 Be7 Bb6 Bcd7 Rf5 Bh3 Rb5 Bdg4 Rf5 Qc1 Rb5 Rc8 Rf5 Qc7 Rb1 Bbd6 e1R Bfe2 f1R Qd8 Rf3 Bc5 Rec1 Rd1 Rc2+ Ke1 Rbb2 Ba3 Rcc5 Ra1 Rb5 Bac5 Rd2 Nf1 Ne6 Be3 Nd4 Bg1 Rc2 Ne3 Rb2 Bd3 Rbf2 Be2
1KQR2rB/2Nqb3/1n2p3/qN1nNP2/2N5/1kR1P1np/2q1P2r/1r3bBN b - - 0 1 illegal: No possible last move, all moves rejected
1bB3n1/2r1k2p/P1rp3n/K2B1BqQ/bPbqBN1R/5NBq/1R1P2n1/8 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 Na3 exf4 Nb1 a4 b3 b5 c3 b4 cxb4 axb3 e4 f5 a4 c5 g4 f3 g6 f4 g5 c4 g7 f2+ Ke2 b2 e5 c3 Kd3 c2 Kc4 f3 Kb5 Bb7 a5 Bd6 a6 Ra7 g6 Ke7 e6 Nh6 g8B Bd5 g7 Nc6 Rh4 Rc7 Nc3 b1B Bb2 c1Q Bg2 f1N Ra2 f2 Be4 Ne3 Nf3 f1Q+ Ne2 Qh3 Nf4 Bc2 Be5 Qa1 Rb2 Ng2 Bf7 Rg8 Bfg6 Ba4+ Kb6 Bdb3 Bgf5 Bc4 Qe2 Rf8 g8B Rf6 Bf7 Qg8 Qd1 Qg5 Qh1 Na7 Ka5 Qg1 Bg8 Qd4 Qd1 Nc8 Qe2 Ke8 e7 Rg6 Bgd5 Re6 Bb1 Kf7 e8B+ Ke7 Bbe4 Rg6 Bh8 Be5 Bef7 Rgc6 B7e6 Kd6 Nd3 Ra7 Ng1 Ne7 Qh5 Neg8 Nf3 Ke7 Bg7 Bb8 Be5 d6 Bg3 Rd7 Nf4 Rdc7 Bc8
5r2/q2p2n1/QN2qP2/K1kB2r1/PB3RNr/R2b4/2Ppnbqn/R1RR4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 e5 a4 Ke7 f4 Kd6 h4 b5 h6 g5 h7 g4 f6 b3 f5 b2 h5 d3 Kc3 g3 Kb4 e4 h6 d2 f7 e3 f6 e2 Rh4 e1Q Qg4 g2 Qf3 Na6+ Kc3 Kc5 Qd3 Qc7 Nh3 g1R Nf2 Qe6 Ng4 Qa7 Bg2 Nc7 Na3 b1Q Nc4 Ne8 Nb6 Ng7 Bd5 Ba6 Bb2 b4+ Kb3 Qd1 Bc3 Qf1 Rh3 Bd6 f8R Bg3 Re8 Bf2 Rf3 Bb5 Rf4 Qg2 Re7 Rf8 Qe2 Qd6 Re3 Qe6 Qf1 Bd3 Rg3 Bg6 Qa6 Bd3 Rgf3 Re1 Rh3 Re5 Rhh1 Rg5 Rhd1 Ne7 Rdc1 Nef5 Rd1 Ne3 Rdc1 Rhg8 h8R Nf1 h7 Nh2 Ra3 Rf7 Raa1 Rgf8 Rg8 Re7 h8R Ree8 Rh3 Rc8 Kb2 b3 Ka3 b2 Rd1 b1N+ Kb3 Kd6 Kb4 Rc4+ Ka5 Kc5 Rc1 Rb4 Re3 Rd4 Ree1 Rc4 Red1 Rb4 Rh8 Rc4 Rh3 Re4 Be5 Nc3 Rhf3 Ne2 Bb2 Bb5 Rfa3 Bd3 Be5 Re3 Bb2 Rh3 Bc3 Rh4 Bb4#
Qr1q2N1/B1p1k1b1/q1b2nP1/p1P1n1R1/1N4B1/4P1rr/2b1N1NR/1n2NK2 b - - 0 1 legal: proof: a4 b5 axb5 e5 Ra4 e4 Ra1 e3 dxe3 Qe7 Ra4 Qf6 Ra1 Qd8 Nc3 f5 Nb1 f4 Ra5 f3 Ra4 Bb7 Ra1 Bc8 h4 fxe2 Kd2 g5 Rh2 gxh4 Rh3 Ke7 Rh1 Ke8 Ke1 h5 b4 d5 g4 a5 c4 h3 f4 h2 b6 h4 g5 h3 g6 d4 b7 d3 f5 Ne7 b5 Qd6 b6 Qf6 Bb2 Qe6 f6 Nd5 f7+ Ke7 Nc3 Nf4 Nf3 Bh6 f8N Qg4 Ne6 Nd5 Nf4 Qf5 Ng2 Nd7 b8N Ne5 b7 Qf6 Nd7 Bg7 b8N Qa6 Nf6 Bf5 Ng4 Nf6 Nh6 d2+ Kf2 e1N Be2 Bd3 Kf1 Nc2 Nfe1 Na3 Rb1 Be4 Bg4 Bc2 Qf3 d1Q Ne2 Qd8 Bd4 Rf8 Rb7 Nb1 Ba7 Rh8 Rg1 h1B c5 h2 Rb2 Rh7 Nd7 Rh8 Nb6 Rb8 Qa8 Rf8 Na4 Rf7 Nc3 Rf8 Na2 Rh8 Nh4 Bc6 Nhg2 h1R Nb4 Rh5 Rh1 Rh3 Rh2 Rg3 Ra2 Bf5 Rd2 Bc2 Rd5 Nd3 Rg5 Ne5 Nf7 Rh4 Nh6 Rhh3 Ng8+
1rQN1N2/n1P1N1k1/Ppn1rr2/b3p1P1/1R1Br3/3NRB2/qb2r3/3bN2K b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 f4 Kf7 Kf2 d5 c4 e5 a4 h5 g4 b6 Kg2 e3 f5 h4 f6 b3 a5 e2 g6+ Ke8 g5 e1B a6 d4 c6 b2 g7 Kf7 c7 d3 c5 d2 c6 Rh6 Na3 b1R Qc2 d1R Nf3 Rd2+ Be2 Bg4 c8N Ne7 g8N Qd5 Nc4 Rb4 Nb2 Re4 Ra4 Qa2 Na7 Nc8 Nd3 Ba3 Rb4 Bb2 Ne7 h3+ Kg1 Kf8 f7 Kg7 f8N Re6 c7 Rf6 Nac6 Na7 Nd8 Nbc6 Qa4 Rc2 Be3 Rb8 Bd4 h2+ Kg2 Bec3 Re1 h1R Qb3 Rh8 Qe6 Rhh6 Qc8 Re6 Kg1 Rhf6 Kh1 Rd2 Bd1 Rf2 Re3 Re2 Nfe1 Bh5 Rb5 Ba5 Rb4 Ref2 Bb3 Bd1 Bc4 Re2 Bd5 Ref4 Bg2 Re4 Bf3
N5nK/1BBbr3/PRn2p2/1b1R2pR/3Rqr1P/R2r1N2/1rPn4/2bk1Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 e4+ d3 a4 b5 h4 g5 e6 d5 e5 f6 Kg6 b3 a5 b2 e7 d4 e8R b4 e6 b3 e7 Qd5 h6 Rh7 Rh2 Nc6 Nd2+ Kc3 Nc4 b1N Rd2 b2 Rd8 Bd7 e8R Ba3 Bg2 Re7 h7 Rb8 h8R Rb4 Qf3 Qe4+ Qf5 Ra4 a6 Rb4 Rd1 d2 Nb6 d3 Na8 Rc4 Rh5 Rd4 Rf1 d1R Bf4 Nd2 Nf3 b1R Bc7 Bc1 Ra3+ Rb3 Rf8 Kb2 Rg1 Kb1 Rb8 Rb2 Rb6 Rf1 Rd8 Rd5 Ne1 Rf4 Nf3 Nc4 Rdb8 d2 Nh2 d1B Ng4 Qe2 Qd3 Qe5 Rb4 Nd4 Rba4 Be3 Nh2 Kc1 Rb6 Rd6 Bb7 Nc6 Rg2 Be2 Nf3 Bd2 Ra5 Kd1 Rf2 Qe4+ Rf5 Re5 Kg7 Re7+ Kh8 Rd4 Rd5 Bf1 Ng1 Be2 Qh3 Bc1 Nf3 Bf1 Re2 Rd2 Ree3 Rd4 Rec3 Nd2 Rc4 Be2 Rcb4 Bb5 Rba4 Rd3 Rad4 Re8 Qg2 Re7 Qf1+
rN1bB2B/nb2b1Pk/4p2q/1N1rP2B/p6r/B1n2Rn1/B3PK1n/4R2Q b - - 0 1 legal: proof: f4 c5 a4 g5 h4 b5 hxg5 bxa4 d3 Qc7 d4 Qe5 fxe5 cxd4 g4 f5 c4 Kf7 b4 Kg7 b5 a5 g6 d5 b6 h5 b7 d3 c5 h4 g5 a3 c6 d4 c7 a4 Bf4 h3 Ra2 e6 Rc2 h2 Bg2 a2 Nc3 a1B Bd5 d2+ Kf2 d3 Ba2 Be7 Nb5 Nh6 Nf3 Nc6 b8B Bc3 Re1 h1Q Nfd4 Na7 Nc6 Ba5 Rc3 Bb7 c8B Bad8 Bd6 Rh7 Qa1 d1R Bd7 d2 Rf3 Kg8 Be3 f4 g7 Nf5 Ba3 Ng3 Nb8 Rh4 Be8 Kh7 g8B+ Kh8 Bgf7 Kh7 Bb6 Qh3 Rc3 f3 Bh5 Qh2+ Ke3 f2 g6+ Kh6 Bbc5 Qh3 Qc1 f1N+ Kf2 Nh2 Rf3 Rb4 Bg4 Bf6 Rg1 Kg7 Be3 Bfe7 Bg5 Qh6 Bh5 Rh4 Qa1 Rc1 Qb1 Rc5 Bf6+ Kg8 Bh8 Rd5 g7 d1N+ Ke1 Nc3 Kf2 Qd2 Qf1 Qh6 Qg2 Kh7 Qh1 Bb4 Rc1 Bbe7 Re1
n1nn3Q/1N4b1/R1bp3B/n3PR1r/N2Pq1Br/2q2N2/1p1n3P/Nk4NK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 axb5 c5 b4 cxb4 Kf2 Ke7 Kg2 Kd6 c4 Ke5 e4 Kd4 e5 g5 h6 f5 d3 a5 h7 b3 c5 g4 c6 f3+ Kf2 b2 b6 d6 b7 g3+ Ke1 f4 c7 g2 Kf2 a4 Bd2 a3 Nh3 g1Q+ Ke1 f2+ Ke2 a2 Kf3 Nc6 b8N Ra4 Ng5 Bg7 Nc3 Nge7 Bc1 Bd7 c8N Qc7 Na6 Nd8 Bh3 f1N Nb6 Ne3 Nb4 Qe1 Rf1 Nc4 Kg2 f3+ Kh1 f2 Qh5 Nc8 Bg4 Qe4+ Nf3+ Kc5 Ne2 Bc6 Re1 f1N Nc2 Nfd2 Rf1 Rb4 Na4+ Kd5 Rd1 N4b6 Rf1 Na8 Ng1 Qa5 Qe8 Rd4 Qf8 Qc3 Qf6 Nb3 Bh6 Nd2 Rab1 a1N Rbe1 Nab3 Na1 Re8 h8N Na5 Nf7 Rh8 Rc1 Qb3 Rc4 Qc3 Rb4 Rh7 Rb6 Rb4 Ra6 Rc4 Bf4 Rh5 Qh6 Rb4 Qh8 Rd4 Bh6 Rc4 Nb6+ Kc5 Na4+ Kb4 Rf2 Ka3 Rf1 Ka2 Rf2 Ne6 Nd8 Kb1 Nb7 Nd8 Rf1+ Qe1 Rf2 Rf4 d4 Qe4 Bf5 Rfh4 Bg4 Qee3 Re2 Qed3 Re4 Qe3 Rf4 Qe4 Rf5
6nr/krbQP1RP/BqB2r2/1q1r4/n1p1KB1p/4BNrB/b4P2/1N5R b - - 0 1 illegal: No proof kernel
1B1K4/1p1p1b1r/q2R1nRR/n2N1N1b/1RPb1P1q/2rP2b1/3B4/k1b3RQ b - - 0 1 illegal: No proof kernel forced: wxLB
b3n2Q/1bNn3q/3NNNP1/PK2bB1b/2R3PN/1p1k2q1/2q1r2p/3r2BR b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kd3 h5 Kc4 b5+ Kb3 f5 a4 c5 e4 c4+ Ka2 f3 a5 f2 g3 f4 g6 f3 Qc2 b3+ Ka3 b4+ Ka4 c3 Be3 h4 Ra2 b2 Qc1 c2 Bb5 f1B Nc3 b1Q Bd7 b3 Bf5 f2 Nf3 h3 Qb2 c1Q Nh4 Bg2 Kb5 h2 Ra4 f1B+ Rc4 Qcc2 Bg1 Be2 Qa1 Bh5 g4 Qe1 Qb2 Qc7 e5+ Ke7 e6 Kf6 e7 Nd7 d6 Qg3 d5 Ke5 e8N Bg7 Qa1 Bb7 Nf6 Rd8 Nce4+ Kf4 Nh7 Be5 Nhf6 Rh7 Qb2 Re7 Qc3 Nc5 d7 Ree8 d6 Re7 Nh7 Nf6 Qd4 Ne8 Nhf6 Qcf2 Qb2 Ke3 Qa1 Kd3 Qb2 Ra8 d8N Qc2 Ne6 Nd7 Qa1 Rd8 Qb2 Qb8 Nc7 Qa7 Qa1 Qae3 Qb2 Qh6 Qa1 Qh7 Qb2 Nb6 d7 Ba8 Nd6+ Bge4 Be6 Beb7 Bf5+ Kd2 Ng2 Bf4 Nde4+ Kd3 Nh4 Ke2 Nfd5 Re6 Qh8 Bd6 Nc5 Re4 Nf6 Be5 N5e6 Kd2 Ra4 Re2 Rb4 Rb8 d8N Kc3 Nf7 Rd8 Nfg5 Rd1 Nf7 Nd7 Nd6 Kd2 Re4 Kd3 Rc4+
1rn1b1bK/R2R1N2/Bnq2pRQ/2R1NP1p/PB1r2r1/7k/6P1/rqnR4 b - - 0 1 illegal: Other
6kB/nB1B4/br1p2Q1/b3r2r/P2R4/Pn1BNK1N/Pr3pB1/q4qRn b - - 0 1 illegal: Other
2b1K3/1rRn1BrN/1PbB1Pq1/5R1R/1p2P2q/1bp2RR1/N1r2nQ1/b1k5 b - - 0 1 illegal: No possible last move
1r4Q1/r1R1bR2/Rp3Pr1/p7/k1BBK1PN/b2P3b/2nq2R1/2nq1NRr b - - 0 1 illegal: No proof kernel
KRrr1r2/1N3kqN/P6r/B1P2B2/R1n1qbpR/Q3n1p1/P5bb/6RR b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 g4 cxd4 b4 h5 bxa5 hxg4 Ke2 g5 Kd3 b5 Ke4 e5 Kd5 g3 c4 b4 h4 b3 f4 d3 h5 d2 c5 e4 a6 e3 f6 e2 h6 e1B h7 b2 f5 Ne7+ Kd6 Bb7 Nh3 Bh6 Bd3 Nd5 Bc2 Kf7 Qf3 d1R Na3 b1Q Nc4 Qg8 Na5 Ne3+ Kc7 Qg7 Bd2 Rf8 h8R Nc6 Be4 d5 Rh7 g4 Ng5+ Ke8+ f7+ Ke7 Bc2 d4 Rh8 d3 Nh7 Bf2 f6+ Ke6 Bb4 d2 Bd3 Bg1 Bf5+ Ke5 Rh4 Rac8+ Kb6 Ba8 Nb7 Qe4 Ba5 Bh2 Rb1 Rh1 Rg1 Nb4 Ka7 Nc4 Qa3 d1R Re1 Nd5 Rg1 Rfd8 f8R Rf1 f7 Nde3 Rfg8 Bf4 f8R Rf3 Rf6 Rf2 Rb6 Kd5 Rb4 Rf1 Bg6 Ke6 Bf5+ Kf7 Ra4 Rf3 Rg2 Rb1 Re8 Rb6 Rg1 Rh6 Re6 Rf1 Rb6 Rfd1 Rb1 Rf8 Rh1 Rdd8 Rbg1 Ke7 Nd6 Bc6 Nb7 Kf7 Rg8 Qee5 Rh8 Bg2 Rg8 Qe4 Rh8 Bb8+ Ka8 Rcc6 Qc1 Rd4 Rh3 Rg8 Rh4 Bf4+ Ka7 Rb8 Qa3 Rd1 Re8 Rd5 Re5 Rf8 Re8 Rd3 Rb8 Rcc8 Ka8 Rd4 Bc7 Rdd8 Ba5
rNn1BBn1/4k2B/PR6/rP4Kb/1Nn2pb1/q1q2PRB/B1Q2pr1/4r3 b - - 0 1 illegal: No proof kernel
b3KNR1/RR2nBPn/6qp/B3Q3/P3nNP1/Rn6/r2b1qpR/q3kr2 b - - 0 1 illegal: No proof kernel
1q4Rb/1b3Ppp/2PQ1B2/1k1P1KBN/3b1n1R/1r1rr2r/B1B3q1/B2N1n2 b - - 0 1 illegal: Other
2n5/bn1bPqB1/Rb3BN1/R3qNpk/N1r1P3/6P1/1N1pN3/KQrr3r b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 g3 e5 fxe5 b5 axb5 h4 Bg2 h3 Ra6 hxg2 Ra5 Ba6 Ra1 Bc8 Kd2 f5 h4 Kf7 e4 Kg6 b4 a5 c4 d5 Kc2 d3+ Kb2 f4 h5+ Kg5 b6 d2 b5 d4 b7 d3 b6 f3 e6 f2 c5 f1R c6 a4 h6 g6 c7 Ra7 h7 Bd7 c8N Ne7 Nd6 Ra6 Rh6 Qc7 Nc4 Nc8 Nc3 Nc6 b8B Bc5 b7 Bb6 Nge2 g1B e7 a3+ Kb1 Qf4 Nb2 Na5 Nca4 Qf7 Be5 Ba7 b8N Rc6 Bc3 Bgb6 Bg7 Rc4 Nc6 Nb7 Ncd4 Kg4 Bf6 g5 Nf5 Re1 Qc2 d1R Ra2 d2 Ka1 Rh1 Qb1 Re8 Rg6 Kh5 h8N Rg8 Bg7 Re8 Rd6 Rg8 Bf6 Rg6 Bg7 Rh6 Rd5 Rhc6 Ng6 Rc7 Ra5 R7c6 Nd3 R6c5 Bcb2 Rcc1 Bbf6 R5c4 Rc2 a2 Ra6 Rc7 Rc5 Rc6 Rca5 R6c4 Kb2 a1Q+ Kb3 Qd4 Ka2 Qc3 Ndb2 Qe5 Ka1
2n2bBq/3p3n/R2q4/N6r/k2pBqQP/3BPN2/qPn2Rr1/B4bBK b - - 0 1 illegal: Other
B2RBqr1/b2p2BK/R1b5/n2N1P1k/1n3pnP/1BPN1qQB/2n3r1/1b6 b - - 0 1 illegal: No possible last move, all moves rejected
2q1b3/B1pQ1qP1/1Prr2rn/1N2P1b1/1kB1B2B/1R2B3/R2Npnnn/6K1 b - - 0 1 illegal: No proof kernel
8/P1Qpk1Br/rn1bq1R1/2B1NnR1/2q2P2/r1rP1B1B/pK3b1N/B6n b - - 0 1 illegal: No proof kernel
krrBn3/BB1bP2p/1q6/R3pB2/P4n1B/PQb3bN/K4nbR/1n4N1 b - - 0 1 illegal: No proof kernel
n1R4b/3ppN1P/3PP1N1/1nN5/B6k/rnqbR1N1/1Q1b4/B1Nr1bKn b - - 0 1 legal: proof: f4 g5 b4 c5 bxc5 gxf4 a4 h5 g4 b5 axb5 hxg4 Kf2 a5 e4 f5 h4 Kf7 c4 Kg6 d4 Kh5 c6 f3 d5 f4 b6 a4 c7 a3 e5 a2 c5 Na6 e6 Nh6 b7 Rh7 b8N Nf5 c6 Ng7 Bb5 Nc5 Ne2 g3+ Kg1 g2 Qd2 Ne8 Nbc3 Bh6 Na4 Ba6 c8N Qc7 Qb2 Nb3 Nc5 Qe5 c7 Qc3 Rb1 a1B Ba4 Bd3 Nd6 Ra6 c8N Nc7 Nde4 Na8 Nc6 f2+ Kh2 f1B Ne5 g1N Ncd6 f3 Ng6 f2 N4g3+ Kg4 h5 Bd2 h6 Rf7 h7 Rf5 Bc6 Ra3 Nf7 Re5 d6 Rd5 Ba4 Rd4 Nef4 Ne2 Rg1 Rd5 Rh1 Ned4 Nfe2 Nb5 Rg1 Bh3 Re1 f1N+ Kg1 Rd4 Qc2 Rd5 Bb2 Bg2 Nc1 Rd4 Nh5 Ng3 Re3 Nh1 Ng3 Rd5 Nce2 Bf1 Rc1 Qc4 Bg7 Be5 Qb2 Qc3 Bf8 Bh8 Bg7 Kh3 Rc2 Qe5 Rc4 Qc3 Nc1 Rd4 Nce4 Rd5 Rc8 Rd4 Nc5 Rd5 Nf4+ Kh4 Ng6+ Kg4 Rg8 Re5 Qa1 Qc4 Rf3 Re1 Re3 Rd1 Rc8 Qb4 Bb2 Qc3 Qa2 Kh3 Ba1 Kg4 Qb2 Kh3 Nge5 Kh4 Ng6+
1Kb1B3/1np1R1kq/1QRpPNrb/1nq5/2PP2B1/1N5R/2qR4/1qn3qR b - - 0 2 legal: proof: a4 b5 axb5 g5 h4 a5 g4 Ra6 b3 Nc6 h5 Ra8 Bb2 Nb8 Bf6 Ra6 f4 gxf4 Be5 Rg6 hxg6 f3 Bf4 e5 g5 exf4 Qc1 Ba3 Kd1 Be7 Qa3 Bb4 Kc1 Bf8 Qc5 Qf6 Qf2 Qe7 Qe1 f2 Qd1 Qd8 Kb2 h5 Kc3 f5 Kc4 a4 Kd5 a3 c4 h4 d4 a2 e4 f3 b4 f4 e5 d6 g7 Kf7 b6 h3 g6+ Ke8 e6 h2 b5 Ba6 b7 Nd7 Kc6 Rh6 b8R Nc5 b6 Nf6 g8R Nd5 g7 Rg6 b7 Nc3 Ne2 Nb5 Bh3 f1Q Nc1 f2 Rh8 f3 g8B Qg2 Bg4 f1Q Qb3 Qfg1 Nc3 f2+ Nd5 f1Q Rh3 Bh6 Bf7+ Kf8 Ra8 Qd3 b8R Qb1 Rb6 Qgc2 Nf6 Nb7 Qb4 Qb8 Nb3 Kg7 Qc5 Qa7 Re8 Qbf1 Rc1 a1N Rd1 Qe1 Rd2 Qeb1 Na5 Nb3 Re7 Nc1 Nb3 Qcb2 Kd7 Q2c2 Rc6 Qb6 Qb4 Qc5 Kc8 Qgd1 Re1 h1Q Kb8 Qhe4 Reh1 Qg1 Rh4 Nd8 Rh5 Bc8 R5h3 Nb7 Qa5 Rg5 Qa7 Qh7 Qb6 Rg6 Be8+
rb2R3/1B3k2/bKR3p1/8/PPpQ1bNN/1qNnBN1n/1nP3nN/q6n b - - 0 1 illegal: No proof kernel
BN3kn1/B3R1q1/1p3P2/rrbBB3/b3KPq1/q1Q2pN1/qPR5/b2q3B b - - 0 1 illegal: No proof kernel
1kqnK2Q/5R1R/1r2R3/2q1rp2/1p2RPB1/qP4b1/1R3bPN/2rbrBN1 b - - 0 2 legal: proof: d4 b5 c4 e5 h4 g5 a4 b4 d5 gxh4 Bd2 Nc6 Be3 d6 c5 Nd4 cxd6 Nb5 Bd4 exd4 axb5 Qd7 Qb3 Qe7 Qd1 Qd8 Kd2 Kd7 Kd3 h5 Kc4 a5 Kc5 a4 e4 a3 b6 a2 e5 h3 f3 h2 b7 h4 b8R h3 b3 d3 Na3 d2 Nc4 Ra5+ Rb5 Nh6 Qe2 d1Q Qd2 Qc2 Rd1 a1Q Rb1 Qa3 Qd4 f5 Qc3 Nf7 Rb2 Ba6 e6+ Kc8 Kc6 Rh6 e7 Qc1 Rc5 Kb8 e8B Qc8 Ne3 Be2 Qh8 Bd1 Rc4 Be7 f4 Bh4 Ng4 Bg3 Ne3 Re6 Ng4 Re5 d7 Rb5 d8R Rb6+ Kc5 c6 Rd7 Nd8 Kd6 Qc2 Rf7 c5+ Bc6 Qc1 Re4 c4 Qg8 c3 Qh8 Rb7 Bcb5 c2 Bbe2 Qe3 Bf3 c1B B3e2 Rb5 Bf3 Qec3 B3e2 Q8c5+ Kd7 Rb6 d6 Be3 Bf3 Bef2 B3e2 Rd5 Ke8 Qc8 d7 Q3c5 Ree7 Re5 Re6 Re4 Ne5 Re3 Bg4 Re1 Nef3 Re2 Rfe7 Re5 Rf7 Rd6 Ba6 Nb7+ d8R Rb6 Ne2 Bc2 Rd1 h1R Rh7 h2 Rd4 Rg1 Re4 h1R Nh2 Rc1 Bd3 Rhf1 Ng1 Rfe1 Bf1 Bd1 Kf7 Qc4 Rd7 Nd8+ Ke8 Q4c5 Rdf7
2rb2N1/Q4k1P/Pnq3np/1B1bp1nb/4Bq2/2qRB3/BRN1n2P/BK6 b - - 0 1 legal: proof: b4 a5 e4 axb4 g4 f5 g5 fxe4 g6 h6 d4 Rh7 gxh7 c5 dxc5 e5 Kd2 g5 c4 d5 Kc2 b5 f4 e3 a4 e2 c6 e1N+ Kb2 d4 f5 d3 c5 b3 c7 d2 c6 b4 a5 g4 f6 g3 a6 g2 Ra2 Nf3 Na3 Kf7 Nc2 Qd4+ Kb1 b2 Bb5 Ne7 Ne2 g1N Nc3 Nd7 Nd5 Bb7 c8B Qc3 c7 Ne2 Qg1 d1B Be3 Ng6 Ne7 Bd5 Bb7 Ng5 c8B Nb6 Ng8 Be7 Qf2 Bd8 Be6+ Kf8 f7 Rc8 Bf5 Kg7 f8B+ Kf7 Ne1 Qa3 Qf4 Ba4 Qc4 Ng3 Qb3 Bc7 Kc2 b1Q+ Kd2 Bb8 Nc2 Bc7 Bfc5 Ne2 Be4 Qf1 Bcd4 Bd8 Rb2 Qf4 Rd1 Qa1 Qa3 b3 Qd6 Qa3 Qb8 Qd6 Qa7 Qc6 Ra2 b2 Kd3 b1Q Ba1 Qb4 Rb2 Qb3+ Kd2 Ng1 Kc1 Qbc3 Kb1 Ne2 Rd3 Qd6 Bc4 Bd7 Ba2 Bg4 Bc6+ Qd7 Qa8 Bh5 Bb5 Qdc6 Qa7+
6q1/2B3nq/1P1rrp1P/1B6/1Qn3k1/1KbB1NBN/1R1p1PB1/R1qr1nq1 b - - 0 1 legal: proof: d4 a5 c4 e5 g4 exd4 b4 h5 gxh5 b5 Nh3 Ba6 Ng1 axb4 Bb2 b3 Ba3 b4 Bc1 Bb5 cxb5 Ra5 Ba3 Ra7 Bc1 Ra8 Kd2 Ke7 h4 Kf6 e4 c5 a4 d5 e5+ Kf5 e6 g5 h6 f6 e7 b2 Kc2 d3+ Kb3 d4 e8B c4+ Ka2 d2 h5 c3 b6 d3 h7 c2 h6 g4 a5 g3 a6 g2 a7 Nc6 Nh3 g1Q Na3 b1N Bf7 b3+ Kb2 Na5 Bc4 Bb4 Ra2 Ne7 Nb5 Qdg8 Qe1 d1R Nd4+ Kg4 Nf3 Nf5 Bf4 Re8 a8B Ng7 Bc7 Re6 Bb5 Nd2 Bg2 Nf1 Be4 Bc3+ Ka3 c1Q+ Rb2 Bd4 Qb4 d2 Bed3 Nc4+ Ka4 Bc3 Bg3 Qd8 Bc7 Rf8 h8B Rf7 Bg3 Rd7 Bc7 Qg8 Bg3 Nf5 Bg7 Rdd6 Bf8 Ng7 Be7 Qh2 Bd8 Qg1 Ra2 b2 Bc7 b1Q Rb2 Qh2 Kb3 Qg1 Be2 Qg6 Bd3 Q6h7 Nd4 Qa1 Be8 Nh2 Bd7 Rf1 Ba8 Qg2 Ba4 Rb1 Re1 Qg1 Bg2 Nf1 Nf3 Rc1 Re5 Qb1 Ra5 Rd1 Bb5 Qc1 Ra1
k6K/b2RB1rP/2nPqq2/2B4p/qn4nP/1BR1r1n1/2qB1Q1p/4BN1N b - - 0 1 illegal: No proof kernel
1b1n1r2/r3pB1k/1R1P1N2/r1Bp1b2/QR1PP2b/1RRR2Nr/4b3/n1K3b1 b - - 1 2 legal: proof: g4 d5 h4 b5 c4 b4 c5 Qd6 cxd6 f6 g5 fxg5 a3 gxh4 axb4 h3 b5 Bg4 Ra5 Be6 Ra1 Bc8 e4 Kf7 b4 Kg6 f4 a5 d3 h5 Kd2 c5 b6 a4 f5+ Kh7 f6 g5 b5 c4 f7 g4 b7 g3 b6 a3 Bg2 h4 Nc3 h2 Na4 a2 Nc3 h3 Bb2 Bg7 f8R Bd4 Kc2 Nc6 b8R Nd8 b7 Ba7 d4 Nf6 Qf1 Ng4 Rf3 Bf5 Nd1 c3 Ne3 Rf8 Rb1 a1R Qc4 Ra5 Bf1 g2 Ne2 g1B Bc1 Bf2 Rb3 Bh4 Rg1 h1B Ng3 h2 Qa4 Bg2 Bb5 h1R Ba3 Bf1 Be8 Be2 Rd1 Rh3 Kb1 c2+ Kc1 Ba6 Bf7 Be2 Nc4 Ne3 Nb6 Nc6 Bc5 Nd8 Kb2 c1B+ Kb1 Kg7 Nd7 Nc2 Nf6 Na1 Rfc3 Be3 Rdd3 Bg1 Kb2 Bb6 Kb1 R8a7 Kc1 Bc7 Ra8 R7a6 b8R Kh8 R8b5 Bb8 R5b4 Kg7 Ra7 Kh6 Rab7 Ra7 R7b6 Kg7 Nfh5+ Kh7 Nf6+
KB4k1/NpP1BR2/5B1r/n1nrqQ2/P2pp2b/r2bP3/3nbB2/1NB3R1 b - - 0 1 illegal: No proof kernel
1rq3N1/1b3b2/3QR3/p1nb1RN1/r1Bp1qNk/1PBn3p/N1KP1P2/5r1N b - - 0 1 illegal: No extended proof kernel
R7/1RR2p1r/1rN2Rb1/1Pn1bRn1/B3N3/kq3p2/1P3PBp/1KQrn1q1 b - - 0 1 illegal: Other
R4r1n/1pBB1R2/qp1q2Rb/1P1p3K/2PrNP1Q/1krN4/3qR1b1/1R5n b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 Rh7 gxh5 Rh8 Qd3 cxd4 Qb5 Nh6 Qc5 Ng8 Qb6 axb6 Ke2 Kf7 Kf3 e5 Kg4 g5 c4 d5 h4 e4 b4 d3 a4 d2 h6 d1R a5 e3 a6 e2 b5 e1Q h7 Kf6 h5 Ke5 a7 Kd4 h6 Nd7 f6 Qd2 f7 Ne5+ Kh5 g4 Bh3 g3 Nc3 g2 Bd7 Ng6 Rh2 N8e7 Nh3 g1Q Nf4 Nf5 Ne4 Qc7 f3 Qd6 Re2 Qge1 Nd3 Ng3+ Kg4 Qf2 Rb1 Nh1 Kh5 Qa5 f4 Qa6 Ba3 Qe1 Bb4 Qd2 Ba3 Rb8 a8R Rg8 Bb4 Nh8 Ba3 Bg7 Bb4 Re8 f8R Rc1 Rf7 Rc3 Bc6 Bh3 Bd7 Bg2 Ba3 Ng6 h8R Bf8 h7 Bh6 Rg8 Nh8 Bb4 Rf8 Rg6 Rbe8 Nef2 Re4 Ba3 Qe7 Bd6 Qf6 Bc7 Qd6 Ra7 Rc1 Ra8 Kc3 Nb2 Rd4 Ne4+ Kb3 Nd3+ Ka3 Rg4 Rc3 Rg5 Ng6 h8Q Ka4 Qf6 Nh8 Rg6 Ka3 Qh4 Ka2 Rd1 Kb3 Rb1+
n3R3/P3q1p1/1nP1R1P1/2kp4/NR2b3/3pr1B1/1bqQ1Nr1/RR1n1qBK b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 g4 Nc6 d4 cxd4 g5 Nb8 Be2 Na6 Bf3 Nb8 Bg4 hxg4 Kf1 e5 Kg2 Ke7 f4 Kd6 c4 b5 a4 e4 h4 b4 h5 d3 h6 e3 f6 g3 a6 e2 g6 e1Q a5 b3 c5+ Kd5 f5 d6 c6 b2 h7 Qd7 a7 Ne7 a6 Qc3 f7 Kc5 f6 d5 Bf4 Qc2+ Qd2 Qd8 Nh3 Bf5 Nc3 b1N Rd1 Nd7 Kh1 Nc8 Nf2 Qe7 Ra4 Rb8 a8R Rb2 Rb4 Ndb6 a7 Ra2 Rb8 Na8 Rg1 Rg8 h8R Ncb6 Re1 Rb2 Re6 Ra2 Rh4 Rh8 Ra4 Rb2 Ra1 g2+ Kh2 Be4 Bg3 Rh5 Rb7 Re5 Rg4 Bf3 Rb4 Re3 Kg1 Be4 Rb8 Qd7 Rbe8 Bd6 f8R Qe7 f7 Be5 Rb8 Bd4 Rfe8 Ra2 f8B Bf6 Ne2 Nc3 Rbb1 Nd1 Nc3 Nd7 R8b4 Ndb6 Kh2 g1Q+ Kh3 Qf1+ Kh2 Qd6 Be7 Bd4 Bg5 Qe7 Bh6 Rf3 Be3 Rb2 Ng4 Ra2 Bg1 Re3 Nf2 Bf6 Nb5 Bb2 Nc3 Bg2 Rh4 Bh1 Rb4 Be4 Nh3 Qa4 Qg2 Bc1 Kh1 Rf2 R1b2 Qc2 Rbb1 Rff3 Qd2 Bb2 Nf2 Re2 Nh3+ Ref2 Rd4 Rg2 Nf2 Re3 Rda4 Re1 Rb4 Re3 Na4+
2RQ2R1/p1B4R/1Nb1pq2/1nK5/1P1N3P/nP2bq1p/Rr1rq1B1/1R1k3b b - - 0 1 illegal: No possible last move, all moves rejected
b4Q1R/1n2k1Nr/R2Rn1KP/qBn3p1/pR1P1bnp/n4RN1/P4r2/4B3 b - - 0 1 illegal: No proof kernel
2r1nBq1/R4bbP/1k3pN1/Rp1bp1P1/2NP3R/2r2B1r/1K1b1RnR/7Q b - - 0 1 illegal: No proof kernel
nB4q1/2b1P1B1/N1rn2Rp/1B1b2Pn/Q5k1/1p1n4/1prBPN1B/3R1bK1 b - - 0 1 illegal: No proof kernel
Q1br3n/Pqr1NN2/2pR3k/rRP3p1/1n6/1n1b1P2/B1pn1NKN/B2N4 b - - 0 1 illegal: No possible last move
b2KR1Q1/p1rN2nN/1PP1k1rp/2b1p3/1Rb2BRR/1B5R/P7/1r1b1qn1 b - - 0 1 illegal: No possible last move, all moves rejected
q4R1B/p3Pb2/1p1NBR2/2PbnK2/1Q2NnrP/2npN1N1/krN5/b2n4 b - - 0 1 illegal: No proof kernel
1bq4R/pn2Pr1R/N2R2KP/k7/1BR1R1pN/1qp2B2/q1b2P1r/1Q1n1q2 b - - 0 1 illegal: No proof kernel
b1R3q1/b2n2np/5pQ1/1BNk1P2/1P2rR2/bN2n1q1/1PpB1N2/KN1Nq3 b - - 0 1 legal: proof: h4 d5 a4 a5 e4 dxe4 g4 b5 Nf3 bxa4 Ra2 g5 hxg5 Bg7 Na3 Bd4 Ng1 Bc5 Nb1 Ba3 Ra1 Ra7 Rh5 Rb7 Rh1 Rb3 cxb3 Kd7 d4 Ke6 Kd2 c5 Kc2 f6 f4 e3 g6 e2 d5+ Kd6 g7 e1B g5 e5 g6 e4 Qh5 e3 Ne2 c4 Bd2 c3 Nd4 e2 Rh4 Ne7 g8N Bf2 g7 e1Q Bb5 Nf5 Nh6 Bb7 g8N Ba8 Ng4 Ng7 f5 Nd7 N8h6 Re8 Ne3 Re4 Nd1 Qg8 Rf4 Kc5 d6 Kd5 Ng4 Qe3 Ne2 Qg3 Nc1 Ba7 Qg5 B3c5 Qg6 a3 Ngf2 a2 Bd3 a4 Bb5 Nb6 d7 a3 d8N Nd7 Ne6 Bd6 Ncd3 Be7 Ndc5 Bd6 Nd4 Bf8 Be3 Bd6 Nd2 Be7 Rc1 a1Q Nb1 a2 Na4 Ba3 b4 Ne5 Nc5 Nd7 Nd2 Qb1+ Kb3 Qa1 Rc2 Qc1 Nb1 a1N+ Ka2 Qd2 Ndb3 Qe1 Rc1 Nc2 Bd2 Ne3 Ka1 Qh2 Rc2 Qg3 Bc1 Re7 Re2 c2 Bd2 Nc4 Re6 Ne3 Rc6 Re4 Rc8
r1n1qnq1/b4Bk1/pB1Bq3/P1pNrr1B/2P2R1N/B1p5/2P4Q/R5Kn b - - 1 3 legal: proof: h4 g5 e4 gxh4 b3 f5 exf5 d5 Qg4 d4 Qh3 Be6 Qc3 Bc4 bxc4 dxc3 d4 Kf7 a4 c5 f4 e5 Kf2 h5 g4 b5 g5 a6 a5 h3 f6 e4 d5 b4 f5 h4 d6 b3 d7 h2 Nh3 b2 Nf4 h3 Nd5 Rh5 Nd2 b1Q Ba3 Qe8 d8B Ne7 Nf3 Nc8 Nh4 Nd7 Bb6 Bd6 Be2 Nf8 Rf1 h1N+ Kg1 e3 g6+ Kg8 f7+ Kg7 Bd1 Bb8 Rf4 Qb4 Bf3 e2 Bg4 Ba7 f6+ Kh8 Bf3 Rf5 g7+ Kh7 Bh5 e1R+ Kh2 Ree5 g8B+ Kh8 Kg1 h2+ Kf1 Nh7 f8B Qba4 f7 Qe6 Be7 Kg7 Bd6 Qae8 f8Q+ Kh8 Qe7 Nf8 Bgf7 Kg7 Bbc7 Ng3+ Kf2 h1Q Bb6 Qb1 Kg2 Nh1 Qc7 Qbb5 Kg1 Qbd7 Qd8 Qg6+ Qg5 Qde6 Qg2 Qg4 Kf1 Qgg6 Qh2 Qh7 Kg2 Qg8 Kg1
2n1Bb2/1nN4b/1p1Nr1qb/1PBb2n1/R3pPpP/b1N1KNQk/3N4/R7 b - - 0 1 legal: proof: e4 h5 d4 f5 exf5 c5 Be3 cxd4 Bd2 Qc7 Bc1 Qd8 a4 b6 g4 hxg4 a5 Nc6 a6 Rb8 Nc3 Rb7 axb7 a5 Nb1 Nb8 Kd2 Kf7 b4 Kf6 f4 e5 h4 d5 c4 g5 c5 g3 b5 e4 c6 d3 c7 d4 Qg4 a4 Rh3 a3 Bg2 a2 Nf3 Nc6 b8N Qe8 Ba3 Qg6 Ne5 Nd8 Qf3 Ne7 Qf1 Nb7 Nec6 Rh6 Bh1 g2 Nd8 g1B Nc3 Bd7 Ne6 Nc8 Qg2 Bc6 Qf2 Bd5 Nc5 Bg8 Rb1 a1B Bf3 Bh7 Nc6 Bb2 Bb4 Ba3 Qg3 Bf2 Ne5 Be3+ Ke1 d2+ Ke2 d1N Nb3 Nf2 Bc5 Bg7 Rh2 Nh3 Bh5 Bec1 Nd2 d3+ Ke3 Bcb2 Nf7 Bf8 Ne5 Ba1 Nef3 B1b2 Nf1 d2 Ra1 d1B N1d2 Bb3 Rhh1 Bd5 Rhd1 Kf7 f6 Ke6 f7 Kf5 Ra2 Qe6 Rda1 Qg6 Ne2 Bbg7 Nc3 Bc1 Ra4 Ba3 Re1 Qc6 Ra1 Re6 Qg1 Bh6 Qg3 Be7 f8N Qd6 Nd7 Bef8 Nb8 Qc6 Be8 Qd6 Qe1 Kg4 Na6 Qc6 Qd1 Kg3 Qe2 g4 Qd3 Na7 c8N Ng5 Nd6 Nc8 Nc7 Kh3 Nb3 Qd7 Nbd2 Qg7 Qe2 Qg8 Qf2 Qg6 Qg3+
5Q2/8/P3N1np/rbnP1NRk/2N1n1NP/B4p2/bb1qBn1p/RN2nK2 b - - 0 1 illegal: No possible last move
Q7/5qN1/2q2r1R/p1pNp1NB/2PP4/1rnb1R1K/Pb2r3/rN1B1rNk b - - 1 2 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 a5 b5 Na6 bxa6 h6 g4 Qd7 g6 Qd4 g5 Qe5 g7 Rh7 g6 Qd6 Bb2 Qd8 Bf6 Rh8 Bg5 hxg5 Kf2 Kd7 Kg2 Kc6 h4 Kd5 d4 e5 h5 f5 a7 b5 c3 f4 h6 b4 h7 e3 c4+ Ke4 Qa4 f3+ Kh2 f2 Na3 g4 Be2 f1Q Qd1 b3 Nf3 b2 Rb1 Qd5 Nh4 Qc6 Kg3 Rb8 a8N Rb3 Nf3 Bf5 Rh2 Ne7 g8N Nd5 g7 Nc3 Ng1 Be7 Rc1 b1R Nh6 Ra1 Nb6 Rf8 g8B Rf6 Nb1 Ba3 h8N Bb2 Bf7 Qf3+ Kh4 g3 Bh5 g2 N8f7 Qf1 Beg4 e2 Nd5 e1R Kh3 Re2 Rc2 Bh7 Nf5 Qf2 Ng7 Bf5 Nf3 g1R Qe1 Rf1 Ng1 Bg6 Qd2 Bh7 Qh6 Bg6 Qh8 Qf5 Qa8 Qfe6 Nd8 Qf7 Nde6 Bh7 Nb4 Ke3 Ng5 Bd3 Rh1 Kf2 Nd5 Qcd7 Rc1 c5 Re1 Qc6 Bf3 Rd2 Re3 Rc2 Bd1 Re2 Kg4 Kg2 Rf3 Qe7 Bg6 Qf8 Rh6 Qf7 Bh5 Kh1 Kh3
1QqRr1q1/B3k3/2N4p/1K2n1p1/Pn1B1R1P/RRr1n2p/3nN1PR/1b3r2 b - - 1 2 illegal: No proof kernel
1QqR1B2/1Bpq2Pp/2r2R2/2n1R1PR/N4pb1/3N3P/2n2k2/nKRnr2q b - - 0 1 legal: proof: c4 g5 d4 a5 f4 d5 fxg5 dxc4 b4 axb4 d5 Bg7 e3 Bd4 exd4 Bg4 Qd3 Bh3 Qd1 Bc8 Kd2 Kd7 Kc2 Kd6 g4 b5 a4 f5 a5 e5 h3 b3+ Kb2 b4 a6 f4 a7 e4 g6 e3 g7 e2 g5 e1N Qh5 Bg4 Be2 Qc8 Ra2 Na6 Qe8 Nc2 Ra5 Nc5 Nc3 Ne7 Na4 c3+ Kb1 b2 Bf3 Nf5 Ne2 Nfe3 Rf1 Qd7 Qb8 Re8 Bd2 Re4 Nc1 Nd1 Nd3 Re1 Bc1 Ke7 d6+ Ke6 d5+ Kf5 Rb5 Qc8 d7 Na1 d8R c2+ Ka2 b1N d6 Na3 Bb7 Qd7 Bb2 c1Q Rc8 N3c2 Ba3 Qe3 Kb1 b3 Re8 b2 Re6 Qe4 Rh6 Qee6 Rh5 Qee8 Rb6 Qec8 Rc6 Ke4 Ra6+ Qc6 d7 Ke3 d8R Q6d7 Rf6 Ncb3 Bf8 Nc5 Be4 Ke2 Re8 Ke3 Re5 Ke2 Qb3 Rb8 a8R Rb6 Rg1 Rc6 Qb8 Ke3 Nb4 Kf2 Rh1 Re6 Bb7 Rc6 Nd3+ Kg2 Nf2 Re2 Re4 Nde3 Re5 Qce8 Nd3 Qed8 Ka2 Q8e8 Ne1+ Kf2 Qa7 Qb8 Ba6 Qb7 Rd8 Qbc8 Qb7 Nd4 Qb8 b1Q+ Ka3 Qd1 Bb7 Ndc2+ Kb2 Q1d5 Rg1 Qh1 Kb1 Qh2 Nf3 Qh1 Rc1 Nd1 Ne1 Nce3 Nc2 Re1 Nb4 Nec2 Nd3+
2n3Bn/BR1qqp1b/PR6/3n2Bp/2nB4/2P1QP2/K2kp1NB/N1q2rr1 b - - 0 1 illegal: No possible last move, all moves rejected
6r1/3qNn1n/3Bk3/3Np1P1/1rNp4/pBpKR2R/2Q1P1PN/rNbnb3 b - - 0 1 illegal: No proof kernel forced: bxLB
4NBNb/nk1B3r/2r1b1qP/6R1/2pPp2p/nn2p3/B4BrP/1RQ2B1K b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 dxc4 Nf3 h5 Ng1 h4 Qe2 Qd5 Qd1 Qh5 gxh5 Bg4 Nh3 Be6 Ng1 Bc8 a4 Kd8 f4 e5 Kf2 c5 Kg2 Kc7 d4 b5 a6 g5 a5 g4 a7 e3 f5 b4 a6 g3 f6 c3 f7 b3 h6 c2 Ra5 b2 Nf3 Bg7 f8B Nc6 Nfd2 Rh7 Ne4 Be6 Na3 b1N Nc4 Bh8 Ncd6 Na3 Nf6 Nge7 Ng8 Nc8 Ne8+ Kb6 Bd2 c1R Be1 e4 Bf2 Rb8 a8B N8a7 Qc2 Rbb7 Rg1 Rbg7 Kh1 Rg6 Qd1 Rc2 Qc1 c4 Rg5 Na5 Bc6 Nb3 Ba4 Nc8 a7 Kb7 Be1 Rg2 a8B+ Ka6 B8c6 Na7 Bd7 Kb7 Bd2 Bd5 Be1 Rc6 Bf2 Bf7 Rd5 Be6 Rg5 Rc5 Rg6 Nd2 Bb3 Rc6 Ba2 Nb3 Qc3 Bg4 Be2 Be6 Be1 Rf2 Qb2 Rf5 Bf2 Rg5 Rb1 Rg4 Kg2 Rg5 Qc1 Rg4 Kh3 g2 Bf1 g1Q Rg5 Bf7 Rh5 Rgg7 Rd5 Qg5 Re5 Qf6 Rd5 Be6+ Rf5 Rg4 Rc5 Qg6 Rg5 Rf4+ Kg2 Rg4+ Kh1 Rg3 Rg4 Rg2 Rg5
5K2/3NR3/2p1P1NB/Nb2qNp1/1rPRb1pp/4Q2n/krB1b1Pn/2r3N1 b - - 0 1 legal: proof: d4 b5 h4 e5 a4 exd4 axb5 g6 h5 Bh6 Qd2 Bg7 h6 f6 Qg5 fxg5 hxg7 g4 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 c4 Kb3 e4 d5 f4 h5 f5 a5 f6 g5 f7 h4 f8N c6 b6 a4 b7 a3 Bf4 a2 Bd3 Ra4 Ng6 Qa5 Kd6 Nf6 Ke7 Nbd7 b8N Ba6 g8N Ne5 Nd7 Bb5 Nh6 Nf3 e5 Ne4 e6 Rb8 Bd6 Nf2 Nf5 Rb4 Bc5 Rb6 Kf8 Nh2 Be7 Nh3 Nd2+ Ka4 b3+ Ka3 Bc2 d3 Bf6 d4 Bg7 Kb2 Bh6 Rb7 Rf1 a1R Rf3 Rc1 Rf4 Ra4 b4 Ka2 Nb3 d2 Rf3 Qc7 Na5 d1B Rf4 d3 Rd4 Ba6 b5 d2 b6 Bf3 Nde5 d1B Nd7 Ra7 b7 Bde2 b8Q Bb5 Qb7 Rb4 Qb6 Rb7 Qc5 Be4 Qe5 Nf1 Qg3 Qe5 Qe3 Nf4 Rh3 Nh2 Rf3 Nh3 Ng3 Ba6 Rf7 Rb2 Rh7 R7b4 Nf5 Bb5 Re7
1Kn3k1/2Qbp1pN/2b3p1/1N2bR2/rq1P2P1/1N2RBn1/2N2Pp1/2Nn1B1r b - - 0 1 illegal: No proof kernel forced: wxDB
1K6/r1n1Q1nP/1Np1N1nr/1k1bPp2/B1p2R2/Bb3p1N/2P1R2q/2N1n2N b - - 0 1 illegal: No possible last move
4q1Rb/4NnNr/6pq/r2n4/R3N1N1/1qBrP1Qp/2pP1p1P/K2NkB2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 dxc4 Qa4 exf4 Qd1 f3 Ra6 f4 Ra1 Bf5 gxf5 Qd6 Qb3 Qd5 Qd1 Qd8 b4 Kf7 b6 Kf6 e3 Ke5 b5 Ke4 f6 a5 f7 c5 b7 h5 b6 g6 Qb3 a4 Kd1 f2 Kc2 c3 Ra2 c4 Na3 f3 Kb1 h4 Nc2 a3 Qb4 h3 Qa5 Na6 b8N Nb4 b7 Qe8 Qc7 Rh7 Ka1 Nd5 Na6 Rd8 b8N Bg7 f8N Bh8 Ne6 Nh6 Qg3 Nf7 Ne1 c2+ Ng7 c3 Nd3 Rd7 Rb2 a2 Ne5 Rd6 Rb3 Rd8 Ba3 c1Q+ Rb1 c2 Nbc6 Rd6 Bb4 Qa3 Bc3 Qb3 Ne2 Rd8 Ng4 Kd3 Ne7 Rd7 Bg2 f1Q Rg1 Qf2 Bf1 Qg2 Rb2 f2 Rb1 Qf3 Rg2 Qf4 Nc5+ Kc4 Rg1 Qh6 Ne4 Kd3 Rg2 Qc4 Rb8 Rd6 Kb2 a1R Rc8 Ra5 Rb8 Rc5 Ka1 Qb3 Rg1 Qeb5 Rg8 Qe8 Bg2 Rd8 Rb1 Rb5 Bf1 Rc5 Rb2 Ra5+ Ra2 Rd7 Ra4 Rd6 Bg2 Rd8 Bb2 Rd7 N2c3 Rd6 Nd1 Ke2 Bf1+ Ke1 Be2 Nf4 Bc4 Rd3 Bc3 Nd5 Ba6 Rd4 Be2 Rd3 Bf1
nb4Q1/p2qbB2/B1BPpp2/B2np1R1/1q1rP1RK/kN6/5P2/B3qNb1 b - - 1 2 illegal: No proof kernel
3b1kb1/1BNP1qRp/1q6/1n4Pp/4qNn1/2Q2N1P/pRrp1N1b/K1N1B3 b - - 0 1 illegal: No proof kernel
1q3b2/N4PR1/nppR4/4rQr1/2PBRq2/PR1RnN2/K2pn1p1/2rk1B2 b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 e5 dxe5 f5 h3 fxg4 Kd2 g5 Qe1 g3 Nc3 b6 Kd1 g4 Kd2 g2 Qd1 g3 Nb1 Bb7 Ke1 Bc6 Kd2 Bf3 Ke1 Bg4 hxg4 Ra6 Nc3 Ra4 Nb1 Ra8 Kd2 Ke7 c4 Ke6 Kc2 h5 Kb2 d5 f4 d4 e4 h4 g5 c6 g6 d3 a3 d2 g7 b3 f5+ Kf7 f6 Kg6 f7 Kg5 e6 Kf4 e7 Ke3 e8R h3 e5 h2 e6 Na6 e7 Qb8 Rd8 Nf6 g8R Rh5 e8R+ Re5 Nc3 Ng4 Nf3 g1N Rd6 g2 Rg7 Ne2 Nb5 Kf2 Red8 Ne3 Qc2 Ra7 Rg1 h1Q Qf5 Qh4 Rb1 Qf4 Ka1 b2+ Ka2 Rae7 Na7 Rc5 Rd3 Ree5 R8d6 Rb5 Rh1 Ra5 Rh3 Rab5 Ra1 b1R Bb2 Rc1 Bd4 Ra5 Rh4 Rad5 Rb1 Rb5 Ng5 Ke1 Rbb3 Kd1 Nf3 Rbd5 Qh3 Rg5 Qf5 Re5 Rg4 Qh2 Re4 Qg3 Rbc3 Qf4 Rb3
1r1Bq1q1/p3p1Bn/3bQ1B1/p1NBP1p1/1R2P1B1/P1Nb1b2/7K/2n1Rk1b b - - 0 2 legal: proof: f4 h5 e4 c5 d4 b6 Qd2 Na6 Qa5 bxa5 g3 Rb8 g4 hxg4 dxc5 Rb6 Ne2 Re6 Ng1 Re5 fxe5 Rh4 Ne2 Rh6 Ng1 Rh8 Kf2 f5 Kg2 Kf7 h4 Ke6 b4 d5 c4 g3 h5 f4 b5 d4 c6 d3 b6 d2 b7 d1B b8Q Nf6 a3 Nh7 c7 Nc5 h6 Ba6 c8B+ Kf7 Nd2 Kg6 Qd6+ Kg5 Ne2 Nb3 c5 Bd3 c6 Qe8 c7 f3+ Kh3 f2 Bf5 g2 c8B g1Q Rb1 g6 Nc3 Kf4 Qe6 Ke3 Be2 Bg7 Beg4 Bf3 Bb7 Bf6 Ba8 Bg5 Bd5 Rg8 Bb2 Nc1 Nb3 Bf4 Nc5 f1B+ Kh4 B1e2 Kh3 Kf2 Ba1 Bd1 Rb4 Kf1 Bb2 Be3 Ba1 Nf8 h7 Bf2 h8B Nh7 Bg7 Be1 Rh2 Bh1 Re2 Bd2 Re3 Bdf3 Bb2 g5 Ba1 Qf2 Bg6 Rf8 Re2 Qd4 Kh2 Qc4 N3a4 Be3 Bd4 Bf2 Nc3 Rh8 Nd7 Qcc8 Bb6 Bc5 Bd8 Bd6 Nc5 Rf8 Qf5 Qe6 Re3 Qg8 Qe6 Qa4 Bb6 Rb8 Bd8 Qae8 Re1+
1rqB1N1q/qP1B4/3Qp1N1/pp5b/nRk1qB2/3p2P1/3rP2n/1BB1K1R1 b - - 0 1 illegal: No proof kernel
2Rn4/2r1N2p/2R1pbbQ/5Rrp/1Kp2nPp/3BNR1R/P1b4P/2k3qB b - - 0 1 illegal: Other
3B3r/2B1P1q1/1q2n1p1/1B3Rp1/B1bpQnPP/3b2Np/N2pB3/1k1KR1b1 b - - 0 1 illegal: No proof kernel
1knQn2N/2r1b2K/R1pqp2B/1p5p/2PqP3/2N1BbBp/R2nP2B/2B5 b - - 1 2 illegal: No proof kernel
5bRq/2pnkB2/N5PN/Kpnp1NpB/1rN5/6P1/Rp1Pb3/Qn2qN2 b - - 1 2 illegal: No proof kernel
5K1B/kppNp1rp/6Rp/P7/1P2qQp1/1BB1BRb1/1b2r1PB/1bb4N b - - 0 1 illegal: No proof kernel
2nNb2n/1q1R1qRR/1p4p1/1r6/1bp1PR2/kP2Q2K/B1qNn1PB/2br1R2 b - - 0 1 illegal: No proof kernel
1R2qrbR/4Bnr1/pKNbkR2/r5R1/1p1PB2n/Pb3p2/2Q2P1R/r4N1r b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 c5 bxc5 g5 Rh2 gxh4 Rh3 Bg4 Rh1 Bc8 Ke2 Kd7 Ke3 f5 Kd4 h5 g4 b5 c4 e5+ Kd5 f4 d4 b4 a3 e3 g5 e2 g6 e1R g7 e4 Bd2 h3 Qf3 e3 Bg2 e2 Be3 h2 Qe4 h4 Nd2 h3 Ngf3 Rg1 Rc1 e1R Nf1 Nc6 Qc2 Nh6 g8R Bd6 Rg5 Ne5 c6+ Ke7 c5 Qe8 c7 Nf5 c6 Rf8 Bd2 Nf7 Ne5 Nh4 Be4 Kf6 Kc4 Be6+ Kb5 Bb3 c8R Ke6 Rb8 Rg3 Ka6 Rg1 c7 Rg2 Rg1 h1R c8R h2 Nc6 Rg4 Rf5 Rg7 Rgg5 Rd1 Qb1 Re1 Rc3 Rd1 Qc2 Ra1 Rd3 Rg1 Rdg3 h1B Rh3 Bg2 Rd8 Rh1 Rh2 f3 Bf4 Bh3 Be5 Bg4 Bf6 Bh5 Ka5 Bg6 Be7 Bh7 Rf4 Bg8 Rdc8 a6 Rff5 Ra7 Kb6 Rc7 Na5 Rc5 Nc6 Rd5 Rf6+ Kd7 Rh6 Ra5 Rh8 Ke6 Rd8 Be5 Rd5 Bg3 Rdf5 Bd6 Rf6+
1b3R2/1BBpb1n1/3P2rQ/1r3N2/1p1qp3/nPRb1k2/2rPbB1K/3nNBB1 b - - 0 1 illegal: No proof kernel
2N2r2/4R1p1/N1bQ3N/4nrP1/1Kp1pqk1/1n2P1Nb/2B1P1r1/1RBnNbb1 b - - 0 1 illegal: No proof kernel
4K3/3BQnpP/pq4P1/P2NN1Nb/N1rb2r1/3n1p1R/k1n5/1nqRB1Nb b - - 0 1 illegal: No proof kernel
1n6/RpK2B1n/r3p2b/BkpQPq2/1PP2r1n/B3Rn2/B1bB2N1/q1N3r1 b - - 2 3 illegal: No possible last move, all moves rejected
r2N1b1q/2R3PB/QB2qpp1/q6r/1B2k3/1nRq2P1/1KBBbP1p/1b2N1n1 b - - 0 1 illegal: No proof kernel
1R1RR1K1/1Rn1b3/1BR3n1/bb2Nr1k/1Q3N2/p1pprp1P/2PPq1B1/4rn2 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 Ra2 hxg4 Ra3 Qf6 Ra1 Qd8 Kf2 g5 b4 d5 e4 a5 e5 f5 e6 c5 h3 a4 e7 Kf7 e8R Kg6 b6 d4 b7 a3 b5 d3 b6 c4 Nc3 f3 Kg3 f4+ Kh2 f2 Re4 g3+ Kg2 g4 Re8 Ra5 Rb1 Kh5 Nd5 Be7 Nf3 Na6 b8R Bd7 b7 Nc7 Ne5 Bb5 Bb2 Qd6 Rh2 Qe6 Bd4 c3 Bb6 Rh6 Rbd8 f3+ Kh1 Rg6 Bg2 f1N b8R Rg5 Rb2 Rf5 Qb1 Ra4 Kg1 Re4 Rb4 Re3 Nf4+ Kg5 Rc4 Kh6 Rc6 Kg5 Bh1 g2 Kf2 g1R Bg2 Kh6 Qb4 Kg5 Ne2 Kh5 Rb7 Bd6 Rdb8 Ne7 Red8 Ng6 Rh1 Be7 Rh2 Ng3 Rh1 Rb1 Re1 Nf1 Nf4+ Kh4 Re2 Re1 Rc5 Kg5 Rc6 g3+ Kg1 Qd5 Ng4 Bc5 Ne6+ Kh5 Ba7 Ne8 Bh1 g2 Kf2 Nc7 Bb6 Re4+ Re3 Nh2 Kg3 Qe5+ Nf4+ Kg5 Ba7 g1B Bg2 Bb6 Re2 Ba5 Bb6 Bc5 Re3 Qe8 Re2 Rd4 Ree6 Rde4 Re7 Qg8 Ree8 Qc4 Ne5 Be7 Qd6 Kh6 Qb4 Nf1+ Kg4 Qc5 Qb1 Qe3 Qb4 Rf7 Rf6 Qe2 Kf5 Na8 Ke6 Re3 Kd5 Rf8 Rc6 Rf5 Ke6 Rg5 Kf7 Rf5+ Kg8 Nc7 Nd5 Kh5 Nf4+
7b/r1QN1npr/R4r1p/2R3kP/nrNKpP1b/p2bN3/P1N5/BqN2B2 b - - 0 1 illegal: Other
2N1Q3/1Rn2p2/N3p3/K1NNPP2/2q2r2/1Pn1Bn2/bNpp1rr1/b2knBR1 b - - 0 1 illegal: No proof kernel
3kRN2/R1N4p/b1K3PP/b2r4/1rNpp2p/rNq1B1b1/Q2PB3/n1bN1n2 b - - 0 1 illegal: No proof kernel
1n1k1R1B/1RbN3p/1q2rnbP/bnN1p3/Rp4R1/4RpnB/1PP5/2rQ2K1 b - - 0 1 illegal: No proof kernel
5K1N/rrp3p1/1b1Pbn1R/k1Bq4/1pP1B1pn/1PN1BB1n/n1B3r1/2Q3R1 b - - 0 1 illegal: No proof kernel
3n4/Q1qNr2N/p2nNqN1/1RRpbkN1/1B1P4/1np1K2p/P2n3P/r2bB3 b - - 0 3 legal: proof: e4 f5 exf5 b5 c3 g6 c4 bxc4 f4 Ba6 f6 Bc8 Bd3 Kf7 Bc2 Ke6 f5+ Kd6 f7 Kd5 f6 Kc6 Bf5 gxf5 Kf2 Kd5 d4 Ke6 b4 c5 g4 h5 g5 d5 b5 f4 b6 f3 b7 a6 g6 h4 g7 h3 Ke3 c3 Kd3 c2 Qd2 c4+ Ke3 f2 Bb2 c1N Ba3 f1N+ Kf3 Nc6 b8B Rh7 Qg2 Qc7 Bb4 Kf5 Nd2 e5 Ne2 Nb3 Nf4 Nge7 g8N Bg7 f8N Nd8 Ne4 Nfd2+ Ke3 c3 f7 Bh8 Ng5 e4 N8g6 Be5 f8N Bd7 Rhg1 Nc8 Nf6 Ba4 N4e6 Re7 Rgb1 Nd6 N8d7 Ra7 Rb2 Rb7 Nfh7 Rb6 Rab1 Rb7 Ke2 e3 Kd3 e2 Ke3 e1Q+ Qe2 Qh4 Qb5 Rg7 Qb6 Re7 Qa7 Na1 Rb3 Qh6 Ra3 Bd1 Ra5 Qg7 Rc5 Qf6 Ba3 Rb2 Bb4 Rc2 Ba3 Rc1 Rbb5 Nab3 Bb4 Ra1 Rb6 Nb5 Rb7 Bf4+ Kd3 Qd6 Bc7 Bg3 Ke3 Qc6 Bf4 Nd6 Rbb5 Qc7 Be5 Be1 Bg3 Bf2+ Kd3 Be1 Bh4 Bg3 Ke3 Be5 Be1
3qrr2/2R2R2/k4NbB/bn1p2Bp/r1pBq1p1/3P4/B1PP2N1/2n1rBQK b - - 0 1 illegal: No proof kernel
4qq2/1pp5/4B1kp/1PNRB1r1/1NNn1np1/1RQn1b2/2P3P1/b2nNrNK b - - 0 3 illegal: No proof kernel
b7/Bn3nb1/1r2B3/BP1Rpp2/1q2rP1p/NBB1p2b/n1Q1p2P/k3K1NR b - - 0 1 illegal: Other
8/1pB2Rp1/4Bb2/KBqqNP1B/p1pR2QN/Bk3bq1/pP3nP1/2n1rr2 b - - 0 1 illegal: Other
NkBqRK2/q2bR1r1/P7/3N2BN/Qbqb2P1/r3nN2/1P2n1B1/5q2 b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 g5 cxd5 Bh6 h4 gxh4 d4 Bf8 a4 c5 dxc5 b6 a5 b5 Nc3 a6 Qa4 bxa4 Nb5 Qb6 Na7 Qd6 Bxa6 Qc7 Bf1 Qd8 Ke2 Kd7 Ke3 Kc7 Ke4 e5 g4 h5 f4 a3 f6 h3 f5 h4 a6 h2 f7 a2 f6 h3 c6 Bg7 f8Q Bh6 f7 Be3 Nf3 Ne7 Bg2 Nf5 Qb4 Bd4 f8N Ne3 Ng6 Bd7 Nc8 Ra7 Re1 h1Q Nb6 h2 Qa4 Rh3 Nf4 Qg1 Nh5 h1Q Na8+ Kc8 c7 Nc6 Rb1 a1Q d6 Qa2 Bd2 Qf7 Re2 Qf2 Rbe1 Qc4 Bc1 Qhf1 Bd2 Nd5 Bg5 Q2g1 Nh4 Ra3 Nf3 Na5 Re3 Nb3 R3e2 Nc1 Re3 Bc6 Kf5 e4 Ke6 Ne2 Kf7 Be8+ Kf8 Qgf2 Rb3 Ne3 Rb5 Rb7 Re5 Bd7+ Re8 Qg3 Rc1 Qe5 Rc3 Qec5 Rb3 Qa7 Rb5 Nc2 Re5 e3 Re6 Nc1 Re5 e2 Re7 e1B Qb4 Ba4 Re6 Ne2 Qa5 Bb5 Qa4 Ne3 Re5 Bb4 Re4 Kd7 c8B+ Kc6 Re5 Rg7 Re7 Qdb6 d7 Qbc7 d8N+ Kd6 Rf7 Bd7 Ne6 Qa5 Nef4 Qd8 Nb6 Kc7+ Re7 Kb8 Nfd5 Qcc1 Na8 Qc2 Nhf6 Qc4 Nh5
K1R1n2Q/1N1BN1k1/4P3/2b2r1b/6q1/3Pb1pb/1N2BnNP/Rr4Rq b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 b6 a4 b5 a3 cxd3 Ra4 d4 Ra5 Qa4 Rxa4 d5 Ra8 Bb2 Qf6 Bd4 Qd6 Bc5 Qd7 Be7 Qd6 Bd8 Qxd8 Kf2 f5 Kf3 Kf7 e4 g5 h6 c5 b7 f4 d3 a2 e6+ Kg6 e7 c4 e8B+ Kh7 e5 g4+ Ke4 g3 d6 f3 Kd5 f2 d7 c3 b6 c2 Nc3 c1B Nge2 Bc5 Nd1 Na6 Kc6 Qh4 d8N Qg4 b8R Nc7 b7 B1e3 Nf4 Nf6 Rg1 Ne4 Be2 f1B Nb2 Nf2 Ng2 Ra5 Bd7 Ne8 Ra8 Rb5 b8N Rf8 Nb7 Kh8 h7 Rf5 e6 Kg7 Nh4 Bh3 Ng2 Rb3 Na6 Rb4 Nc7 Rb5 Nd5 Rb4 Rac1 a1Q Ne7 Rb3 Rc3 Qf1 Ra1 Qc1 Nd1 Rb1 Nb2 Qf1 Nd8 Ba6 Nb7 Bc4 Rc2 Bb3 Rc1 Bd1 Rc3 Nf6 Kc7 Ne8+ Kb8 Bb6 Rc8 Bbc5 Nh4 Qg2 Ka8 Qh1 Ng2 Qg6 Bf1 Bh5 Be2 Qg4 h8Q+
r1rR4/1K3Pp1/n1P2NR1/r1N2r2/3nN2P/k6N/1b2p1Q1/1bBBqR2 b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 h5 exf5 b5 g4 c5 gxh5 b4 d4 cxd4 a4 Qb6 a6 Qb5 axb5 Kd8 b6 Ke8 b7 Nc6 b8Q Nxb8 Kd2 e5 Kd3 Ke7 Ke4 Kd6 h4 Kc5 f4 d6 c4 b3 f6 Kb4 Kd5 d3 f7 b2 f5 e4 f6 e3 c5 d2 h6 Bg4 a7 Bc8 h7 Bf5 Ra6 Nh6 Qf3 d1R+ Nd2 b1R Qg2 Ra1 Be2 Ra5 Nh3 Rf1 Bd1 Bb1 Ne4 e2 Rg1 Be7 f8N Nf5 f7 Bf6 Ne6 Rc8 h8R Bb2 Rd8 Ka3 Rc6 Rf4 Rf1 Na6 Rb6 Nd4 Rc6 Rab8 a8N Rf2 Nb6 Ra8 Nd7 Rf5+ Kc4 Nc2 Ndf6 d5+ Kd3 d4 Kc4 d3 Rb6 Rf4 Kd5 d2 Kd6 Rf5 Kd7 Rcb8 Kc6 Rc8+ Kb7 Nd4 Rbd6 Re5 c6 Rf5 Bb3 d1Q N6c5 Qd2 Bd1 Qe1 Rd5 Rf2 Rg5 Rf5 Rg6
NN1Kb2B/3bp3/1QPk3N/qr1R1Rr1/BrP1n3/B1P4N/1n2p3/1r6 b - - 0 1 legal: proof: e4 h5 g4 c5 gxh5 a5 d4 b5 dxc5 f5 c6 g6 a3 Bg7 c4 Bc3+ bxc3 fxe4 Ke2 b4 axb4 axb4 Kd2 Qc7 Ke1 Qd8 Ke2 d5 Ke3 b3 Kf4 g5+ Ke5 b2 f4 e3 h4 d4 h6 d3 f5 g4 h7 d2 f6 g3 f7+ Kf8 h5 g2 h6 Ba6 Ke6 Qc7 Bd3 e2 Na3 b1R Bc2 Nf6 Ba4 Ne4 Nb5 Qa5 Qb3 d1B Rh5 Nd7 Ba3 Bc8 Nh3 g1R Nc7 Bc2 Rd5 Rg5 Qb6 Rb8 Na8 Rb4 Rf1 Ne5+ Rd7 Nd3 Rf5 Rhg8 h8N Nb2 h7 Kg7 f8N Bb1 Qg1 R8b5 Nf7 Bc2 Qa7 Rg1 Qb6 Rb1 Ng6 Bd3 Nge5 Kf8 h8B Bc2 Nd3 Rg5 Nh6+ Ke8 Nc5 Bd3 Ke5 Bc2 Rd5 Bd7 Na6 Bd3 Qe3 Kd8 Nb8 Bc2 Nb6 Kc7 Qg1 Be8 Ke6 Bd7+ Kf7 Bc8 Ke8 Bd3 Rde5 Kd6 Na8 Bc2 Qb6 Bd7+ Kd8 Ng3 Rf4 Bg6 Rf1 Ne4 Rff5 Bge8 Rd5+
3k1qB1/1n2qB1n/4N2R/2p4R/b1nn1Q2/2PB2rP/R2RP1p1/N3K2b b - - 0 1 legal: proof: a4 f5 g4 fxg4 d4 e5 dxe5 h5 Bf4 b5 axb5 h4 Bg3 Qe7 Kd2 Qg5+ Ke1 Qd8 b4 hxg3 b6 a5 b5 a4 b7 Bc5 bxa8B Ba7 b6 Rh4 bxa7 Rh8 f4 c5 c3 g5 h3 d5 e6 g2 e7 a3 f5 d4 f6 a2 Qc2 g3 Bf3 g4 a8R d3 Kd1 d2 Qb2 Nc6 Qb6 Ne5 Qd6 Nc4 Ra6 Bb7 Qf4 Rh5 Rc6 Rg5 f7+ Kd7 f8R Nf6 Be4 Nh7 Rff6 Qf8 e8B+ Kd8 Nf3 g1Q Bf7 g2 Bd3 g3 Rh6 Qe3 Rh5 g1N Na3 Qee7 Nd4 Nf3 Bg2 Rg7 Rch6 Bd5 Ndb5 Nd4 Nc7 Bc6 Nc2 Rg4 Rc1 a1N Bgd5 Nab3 Ra1 Nba5 Ra2 Nb7 Na1 Rg6 Rf1 Rg4 Bde6 Bh1 Bg8 g2 Bef7 Rg3 Ne6+ Kc8 Rg1 Nc6 Kc2 d1B+ Kc1 Bb3 Rd1 Nd4 Rdd2 Ba4 Bdg6 Bb5 Kd1 Ba4+ Ke1 Kd7 Bd3 Kc8 Ng7 Kd8 Ne6+
4B1RB/PKN2bN1/2r1rb2/bb1np1R1/3PP2k/6p1/1p3QRB/R3q3 b - - 0 1 legal: proof: b4 d5 g4 a5 bxa5 h5 f4 g5 fxg5 hxg4 c4 Nc6 cxd5 Na7 a4 Nb5 axb5 Ra6 b6 Rxb6 Ba3 Ra6 Bc1 Ra8 Kf2 b5 Ke3 e5 Ke4 Ke7 h4 c5 d4 f6 h5 b4 h6 c4 h7 b3 a6 c3 g6 c2 g7 b2 d6+ Kf7 Kd5 Kg6 Kc6 f5 e4 f4 a7 Kg5 d7 Nf6 g8R+ Bg7 Nh3+ Kh4 Bb5 f3 Qf1 f2 Na3 Nd5 Rh2 Bf6 Rg2 Qa5 d8R Be6 Bf4 c1B Ng5 Bd2 Bh2 g3 Kb7 Rc8 Be8 Rc6 Nb5 Bf7 Nc7 Be1 Qg1 f1B Nge6 Bb5 Rg5 Rg8 h8B Rg6 Ng7 Re6 Rc1 Qa1 Qf2 Ba5 Rc3 Rc6 Ra3 Qe1 Rb8 Be7 Ra1 Rge6 Bd7 Bf6 Rg8 Bc4 Be8 Ba6+ Kb8 Bb5 Kb7
2b2RbR/1Br2Q2/1PNp2r1/2P1P2r/8/p1K1N2b/b2p2Bp/1B2BNk1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 e5 a4 exf4 a5 b5 Nc3 a6 Nb1 Qb6 axb6 a5 g4 g5 h3 f5 Ra3 f3 Nd2 a4 Ra1 Nc6 Nb1 Na5 bxa5 f4 h4 Bh6 Bh3 Ne7 Bf1 Nf5 gxf5 g4 Bd2 Ke7 Bc1 Bg5 hxg5 Ke8 Kd2 Kf7 c4 h5 e4 g3 a6 d3 g6+ Kf6 e5+ Kg5 g7 Kg4 g8B b4 f6 h4 a7 a3 f7 h3 f8N b3 c5 g2 Ne2 g1R Nbc3 f2 Rh2 Kf3 Nd5 d6 Ng6 b2 Kc3 b1B Bd2 Ba2 Ne3 Rh5 Be1 d2 Ne7 Rg6 Qb3 Rb8 a8B+ Rb7 Nc6 Rc7 Ng1+ Kg3 Bg2 f3 Qf7 Re6 Rh1 Rg6 Bb7 h2 Ne2+ Kh4 Ng3 f1B Rb1 f2 Rb3 Bc4 Bh7 f1B Rg1 B4e6 Rb4+ Bfc4 Rf1 Bf5 Ra4 Bh3 Ra8 Bcb3 Qd7 Bg8 Rf8 Rg7 Bb1 Rg6 Nef5+ Kg4 Qf7 Kf4 Nfe7+ Ke3 Nf1+ Ke2 Nd5 Rhg5 Bh4 Rf5 Nde3 Rh5 Bf6 Kf2 Bh4+ Kg1 Be1 Bcd7 Rae8 Bc8 Rd8 Bh7 Rh8 Bg8 Rf8
rb2B3/qppP1R1R/b4n2/4K1pN/NB2P3/B5pp/2k1n1PN/N6Q b - - 0 1 legal: proof: b4 a5 h4 axb4 c4 e5 f4 d5 fxe5 g5 cxd5 Nd7 a4 Nc5 a5 Bd7 a6 Qf6 h5 Qg6 hxg6 Rc8 a7 Rb8 a8R Rd8 R8a3 f5 Rg3 Ra8 Rg4 fxg4 Rxa8+ Bc8 Ra1 Bd7 Kf2 Ke7 Ke3 h5 Kd4 g3 e4 h4 e6 Kf6 d6 b3 g7 b2 e7 Ke6 e8N Rh6 Nf3 Ba4 Bb5 Be7 Nc3 b1Q Nf6 Rg6 Nd7 Nh6 g8N Nd3 Nc5+ Kf7 Nb3 Ke6 Be8 Bd7 Nf6 Ng4 Ra5 Ba4 Rf5 Nf4 d3 Qb2 d7 Qa3 d8B Bb5 Qe1 Qa6 Na4 Bf8 Be7 Ne2+ Kc5 Bg7 d4 Bh8 Ba3 h3 Rf1 Bd3 Nh5 Be5 Nh2 Rh6 Bb5 Rh8 Qa1 Rd8 Be8 Ra8 Rf8 Bc4 R1f7 Nf6 Rh8 Bf4 Qh1 Be3 Rhh7 Bf2 Kb4 Bb5 d5+ Ke5 d6 Ba7 d7 Bb8 Kc5 Bc4 Ng7 Kf4 Bd6+ Ke3 Nh5 Kd3 Be7 Kc2 Bf8 Nc3 Kd4 Qa7+ Ke5 Ne2 Bfb4 Ba6 Na1+
4n3/r2NP3/B2N1Nrb/3nR2n/Bn1PK3/RbrBn1k1/2bP3B/2Q2q2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 exf4 c3 d5 a4 b5 axb5 d4 cxd4 axb4 Kf2 Kd7 Kf3 Ke6 e4 f5 g4 h5 b6 c5 e5 h4 g6 c4 g7 h3 b7 b3 g5 c3 g6 h2 Be2 b2 Nh3 c2 Bf1 Rh6 Ra2 Qf6 Qe2 Na6 b8N Nb4 Ra3 Ra7 Rg1 h1N Nf2 Ng3 Qe1 Nh5 Nc3 b1B Rg5 Bb7+ Nce4 Bd5 Bb2 c1R Ng4 Bb3 Ba6 B1c2 Nd7 Qf7 Qg1 Ngf6 g8B Ne8 g7 Rg6 Bh7 Kd5 g8B Bh6 e6 Qf8 Ke2 f3+ Ke3 f2 Nd6 f1N+ Kf3 Qf7 e7 Ne3 Ngf6+ Ke6 Qf1 f4 Rc5 Ned5 Qg1 Rg7 Bhd3 Rg6 Ke4 f3 Rca5 f2 Qf1 Ra1 Qc1 f1N Rb5 Nfe3 Bc3 Nc6 Ba5 Ncb4 Bc7 Rb1 Nc4 Ra1 Bh2 Rc7 Nd6 Rc3 Bg1 Ra2 Kf3 Ra1 Ne4 Kf5 Nd6+ Kg5 Ke4 Kh4 Rba5 Kg3 Rb5 Ndf4 Re5 Qf8 Bgc4 Nfd5 Bcb5 Qf7 Ng4 Qf1 Ngf6 Rc7 Ba4 Ra7 Qb2 Rc1 Qa1 Bb1 Qb2 Rc3 Qc1 B1c2 Bh2+
r2n2Bn/1Q1B3B/1n4Nk/2R1rqNb/PP1Rq3/bnKP1B2/7n/3r1R2 b - - 0 1 legal: proof: h4 a5 c4 d5 cxd5 g5 hxg5 e5 f4 exf4 Qb3 a4 Qxb7 a3 b3 Ra7 Bb2 axb2 Rh3 Ra3 Rh1 Ra8 g4 c5 e4 f5 a4 h5 d6 f3 g6 f4 g7 h4 e5 f2+ Ke2 f3+ Kd3 c4+ Kc3 h3 d7+ Kf7 g5 Kg6 e6 h2 e7 Qa5+ Kd4 c3 d8R c2 d3 c1N Re8 Rh5 Kc4 Bg4 Rd8 Nc6 Ra2 Nh6 e8B+ Nf7 g8B Qf5 Rd4 Ba3 b4 Nd8 Ne2 Nb3 Bg2 f1N Nd2 b1N Ne4 f2 Bf3 Nb1d2+ Kc3 Nc4 Rc2 Nb6 Bd7 Nh8 Bh7+ Kg7 g6 Kh6 Rg1 h1Q g7 Nh2 g8B f1R Nf4 Rd1 Ng6 Rg5 Rf1 Bh5 Nc5 Qg2 Ne6 Qgg4 Rc1 Qfe4 Rc2 Re5 Ng5 Qe6 Rd5 Q6f5 Rc5 Ng4 Rg2 Nh2 Rg4 Qe3 Rgc4 Qee4 Rd4
n2q4/R1B2Rrk/1n1BPb1q/q5Q1/qNP2r2/1N1bP3/4b2R/1BKn2R1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 d4 c5 f4 e5 fxe5 cxd4 a4 axb4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 Kd2 d5 c4 f5 h4 Kf7 e3 g5 h6 Kg6 h5+ Kh7 b6 f4 b7 g4 Ra3 g3 Rb3 g2 Qc2+ d3 Rh3 f3 Qa2 f2 Ra3 d4 Rf3 b3 Bb2 Ra7 Rh3 Be7 Kd1 d2 Nc3 Nd7 b8B Ngf6 Bd6 Nb6 Nd5 Rf8 Nb4 Ne8 Ne2 g1Q Rg3 Qh2 Nc1 Bf5 e6 Bd3 Rg1 Rf4 Ba1 b2 Nb3 Rd7 Ra7 Bf6 Qa5 Rg7 Qg5 Nc7 Bh3 f1B Bf5+ Kh8 h7 Nca8 Bg6 Bde2+ Kc2 d1N Bf5 b1Q+ Kd2 d3 Bae5 Qa2+ Kc1 Be7 Bc7 Bf6 Bed6 Qa5 Be4 Rd7 Bg6 Kg7 h8R Re7 Rf8 d2+ Kb1 Qh3 Rf7+ Kh8 h6 Rd7 h7 Qh6 Bc2 Bd3 Qh5 Bfe2 Qe5 Nf2 Kb2 d1Q Bb1 Re7 Nd2 Qda4 Kc1 Nd1 Nb3 Rd7 Qg5 Qg6 Rf8+ Kg7 h8R Re7 Rhg8+ Kh7 Rh1+ Qh6 Rh2 Rf7 Rg6 Rg7 Rf7 Rg4 Qb5 Rd4 Rg1 Rf4 Qg5
2n4n/NNqqk3/r3Q1R1/P1r2B2/1bq1N1P1/3qB3/2BP1q1R/Kb1qB3 b - - 0 1 legal: proof: e4 d5 h4 a5 c4 c5 b4 f5 exf5 cxb4 c5 g5 c6 a4 Qxa4 d4 Qd1 d3 Bxd3 gxh4 Bb5 Qc7 Bf1 Qd8 g4 e5 f4 h5 a4 b5 a5 b3 c7 b2 f6 e4 f7+ Ke7 f5 b4 Bg2 e3 Nf3 b3 Nd4 h3 Bb7 h2 Be4 h4 Bc2 h3 Nc3 b1Q Ndb5 e2 Na7 b2 Ne4 Qa2 Rb1 Ba6 c8B Qc7 Bd7 Qac4 Bc8 Nc6 f6+ Kd8 Bf5 Bb4 f8N Nce7 f7 Nh6 Nd7 Nc8 f8B Nf7 Bg7 Rh5 Bh6 Nh8 Be3 Ke7 Ndc5 Qd7 Nb7 Qcc7 Ra1 b1Q Bb2 Bd3 Be5 Qa2 Rb1 Qac4 Bg3 Rg5 Rg1 h1Q Qc1 Qg2 Rh1 Qf3 Rh2 Rh5 Qa3 Rg5 Qa2 Rh5 Nb5 Ra6 Na7 Rg5 Bg6 Rc5 Bf5 Bc3 Rb6 Bb4 Bgf2 Qfg3 Rg6 Qgd6 Bb3 Bb1 Bc2 Qdd3 Bg3 Qcc3 Qd5 Qcc4 Qe6+ Kf8 Kf2 e1Q+ Kf3 Qd1+ Kf2 Qf3+ Ke1 Qg2 Kd1 Qf2 Qd5 Ke7 Kc1 Qg1+ Kb2 Qf2 Rh1 h2 Ka1 Qff1 Be1 Qf2 Rf1 h1Q Qe6+ Kf8 Rg1 Qhf3 Rg2 Qd1 Qd6+ Ke8 Rh2 Kf7 Qc6 Ke7 Qe6+
1B6/PB2PK2/R1N2n2/4q2k/1N3Pbb/1rr1b1NR/n1N1rbB1/1r1n1Q2 b - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 b4 axb4 g4 d5 cxd5 e5 gxh5 Bc5 Qd3 Qd6 dxe5 Qe7 e6 Qd8 e5 Bf8 Qe4 fxe4 Ke2 g5 Ke3 b5 Kd4 g4 h4 b3 a4 c6 e7 Kf7 d6 b4 d7 e3 a5 c5+ Kd5 c4 a6 c3 h6 Kg6 Ke6 c2 a7 g3 h7 e2 Na3 e1B Bf4 c1R Nc2 g2 Ne2 g1B Rh3 b2 Bg2 b1R Ng3 b3 Ra6 b2 f3 Qc7 e8B+ Kg7 h5 Nc6 Bg6 Bef2 Be4 Nb4 Bb7 Nf6 h6+ Kg6 Bd5 Rg8 h8Q Rg7 h7 Na2 Bb7 Be7 Qf8 Rg8 Bh6 Rb8 h8N+ Kh7 Nf7 Kg6 Bf4 Bd8 Ne3 Rc3 Nc2 Be7 Nd8 Rg7 Bc6 Rbb3 Bb7 Be3 Nc6 Bgf2 N6b4 Rh7 Nh1 Rh4 Bg3 Kh5 Kf7 Qd6 d8N Bg4 e6 Qe5 Ndc6 Bd8 Bf4 Be7 Rg3 Rh2 Rh3+ Bh4 Bg3 B7c5 e7 Bb6 Bf1 Re2 Bg2 Bf2 Qd8 Bbe3 Qd1 Rc1 Qf1 b1N Ne1 Na3 Bh2 Rcb1 Nec2 Nc4 Bf4 Nb2 Bg3 Qd4 Bb8 Nd1 f4 Qe5 Ng3+
K1B1Bn2/1R1bkbR1/1P5q/1nN1b3/4Nb1R/2bbPP2/3qr3/R2Qb1B1 b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 g5 e4 fxe4 h4 gxh4 f3 d5 cxd5 e3 Ke2 Kf7 Ke1 e2 Kf2 Ke8 Ke1 e5 Ra3 a5 Qb3 e4 Ra1 Ra6 Qd1 Re6 Kf2 e1B+ Ke2 e3 Kd3 e2 Kc2 Re3 dxe3 Ba6 Rh2 Bb7 Rh1 Bc8 Kb3 h5 Ka4 c5 g4 c4 b4 h3 b6 h4 Kb5 a4 b7 c3 g5 h2 d6 c2 g6 a3 g7 h3 d7+ Ke7 Qd5 a2 Qc6 Bc3 Qc7 e1B Kb6 Na6 Ka7 Nf6 g8B Nh7 b8R Bh6 b5 Bf4 b6 Nf8 Bb2 c1Q Be6 Qd2 Bb5 Bce5 Qb7 Nc7 Qd5 Rg8 Qd3 Rg2 Nc3 Re2 Na4 Bc3 Bc6 Nb5+ Ka8 Qc7 d8R Qd6 Bed7 Qh6 Nc5 Bce5 Be8 Be6 Bcd7 Bf7 Rb7 Bc3 Qb1 Bce5 Qd1 Bc3 Rb1 a1B Rc8 Bce5 Ba3 Bac3 Rcc7 Rg2 Ne2 Rf2 Ng3 Re2 Rg1 h1B Rb4 h2 Nge4 Bg2 Rh1 Bh3 Bc8+ Bd7 Rg1 h1B Rg7 Bh2 Rb1 Ne6 Ra1 Bg2 Rg4 Bf1 Rh4 Nf8 Bb2 Bb4 Bc3 Bef4 Bg7 Bc3 Be5 Bg5 Bg3 Bf4 Bf2 Bfe5 Bg1 Bhf4 Rh1 Rg2 Rh4 Bd3 Rc6 Rf2 Rg6 Re2 Rg7
4rb2/Pr1B1NP1/2R1q1Rr/b3q3/3N4/Rb4R1/B2Q2Pq/KnB2kbq b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 g5 fxg5 f5 h4 Kf7 b4 axb4 e3 Nd7 e4 Ne5 h5 Ng6 hxg6+ Ke8 Rh3 fxe4 Rh5 Be6 Rh1 Bc8 a4 Kd7 d4 Kd6 Kd2 e5 Kc2 c5 Kb2 b5 a5 h5 a6 e3 g7 h4 g6 h3 a7 h2 Bd2 c4 Bc1 c3+ Ka2 e2 Qe1 c2 Bd2 c1B Qf2 e1Q Ne2 e4 Rg1 h1Q Qh4 e3 Qf6+ Be6 Qf7 Qg5 Qf6 Rh6 Nbc3 b3+ Kb1 b4 Ra3 b2 Qf2 Ne7 g8B Re8 g7 Qh2 Qf4+ Qe5 Ne4+ Kc7 d6+ Kb6 d7 Kb5 d8R Kc4 Rd7 Nd5 Rd6 Bf7 Ka2 b1R Ng5 Rb3 Re6 Kd3 Ka1 Nc3 d5 Nb1+ Nd4+ e2 Rg6 Be6 d6 Bd5 Bc3 Be3 d7 Bf7 Rh1 Bg1 d8R Rb2 Rdd6 b3 Bd2 Qe6 Qf6 Qeg3 Qd8 Qge5 Ba5 Ke3 Rc6 Kf2 Bd2 e1B Bc1 Ba5 Ba6 Ke1 Bc8 Kf1 Bd7 Rc2 Ra6 Rc7 Rd6 Rb7 Rc6 Qhg3 Rh3 Qh2 Rg3 Qeh3 Rc4 b2+ Ka2 Bd5 Nf7 Qhf5 Qg5 Qfe6 Qd2 Qc6 Bg4 Be3 Ne2 Kf2 Bd7 Beb6 Nh8 Nc3+ Kb3 b1Q+ Bb2 Qe1 Bc1 Qeh1 Kb2 Kf1 Ka1 Bg1 Nd4 Nb1 Bf7 Qcd6 Rc6 Bc4 Bd5 Qde6 Nf7 Ba2 Bf3 Bd5 Bd1 Bc4 Bb3 Bd5 Ba2 Bc4 Qb2 Bb3 Qd2
8/1RBbn1K1/1PN1R1Pr/1N6/bbr1k1n1/2rbn1Qn/3P1Rn1/B2N2R1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Ba3 g6 Qg5 hxg5 Bf8 Bg2 Ke8 Bf3 exf3 Kf2 Ke7 e4 Kd6 b4 Ke5 b6 c5 d6 a5 d7 h5 d8N f5 b5 a4 b7 a3 g7 h4 g6 c4 b6 c3 Ne2 h3 Re1 h2 Qb3 h1N+ Kf1 f2 Kg2 f1B+ Kf3 a2 Qa3 c2 Nbc3 Nh6 g8R Bd7 Ne6 Nc6 Rd1 Bb4 Ng5 Nf2 Nh3 Ra4 Rb8 Ne7 Bb2 c1R Nd4 Nhg4 Ncb5 Bd3 Rg1 Rc3 Raf1 a1N Qb3 Nc2 Ba1 Rh6 Nc6+ Kf6 Qa3 Nce3 Qb3 Ng2 e5+ Kg7 e6 Kf6 Ng5 Nh3 Ne4+ Kg7 Nf2 Kf6 Nd1 Kg5 Rf2 Kf6 Na5 Ke5 Qa3 Kd5 Nc6 Bc2+ Ke2 Ke4 Qb3 Nc8 e7 f3+ Kf1 f4 e8R+ Kf5 Re6 Ne7 Qa3 Bb3 Rg8 Bc2 b8B Bb3 Rg7 Bc2 Rfe2 f2 Bc7 Bb3 R2e4 Bc2 Ke2 f1N Re3 Bb3 Rf3 Nfe3 Rf2 Bc2 Rg8 Bb3 Rb8 Bc2 Rb7 Bb3 Rd6 Ke4 Rf6 Ra7 Rd6 Ba4 Qb3 Ra8 Rf6 Rc8 Re6+ Kf5 Qa3 Rc4 Kd3 f3 Re2 Rc3+ Kd4 f2 Qb3 f1B Rf2+ Kg5 Qa3 Bd3 Qb3 Nh2 Ke5 Kg4 Re2 Kf3 Kf6 Nhg4+ Kg7 Rc4 Rf6+ Ke4 Ref2 Rc3 Qa3 Ba5 Qd6 Bb4 Qg3 Rc4 Bce5 Rc3 Re6 Rc7 Nb8 R7c5 Nc6 R5c4 Bc7+
4n1q1/1qb2nN1/1N4Nn/R1QBr1kr/2K1B1PP/4Pp2/1b1B2Nb/1R1q4 b - - 0 1 legal: proof: d4 b5 f4 h5 a4 e5 axb5 exf4 Nh3 c5 Ng1 cxd4 Nf3 g5 Ng1 g4 Nc3 h4 Nb1 h3 gxh3 Qe7 Bg2 Qf6 Bf1 Qd8 Nc3 g3 Nb1 Bb7 Ra5 Bf3 Ra1 Bg4 hxg4 Bc5 Bd2 Be7 Bc1 Bf8 Kd2 Ke7 Kd3 Kf6 b4 d5 c4 a5 e3 f3 b6 a4 b7 g2 c5 f2 c6 a3 c7 a2 c8B Nd7 b8N Nh6 h3 Ra5 b5 Bd6 b6 Kg5 b7 f5 Ne2 g1B Qc2 f4 Bd2 f3 Bg2 f1Q Qc5 Nf6 Be6 Bgh2 Nc6 Qg8 b8N Ne8 Nd7 Bc7 Na3 Qb1+ Nc2 Qb7 Ne1 Rb5 Rb1 a1B Nd8 Bb2 Nf4 Rh7 Bf5 Re7 Nb6 Re5 Ng6 Ra5 Kc2 d3+ Kb3 d4+ Be6 Rb5+ Kc4 Ra5 Bd5 Rb5 Bc3 d2 Bf1 d1N Bd3 Nf2 Ng2 Ne4 Bd2 Ra5 Bc2 d3 Ra1 Rb5 Rhb1 Ra5 Bc1 Rb5 Ra5 d2 Bd3 d1Q Bd2 N4f6 Be4 Nd6+ Kd3 Ndf7 Kc4 Ne8 Ne6+ Kf6 Ng7 Rh5 Ra2 Kg5 Ra3 Ra5 Raa1 Ra8 Ra5 Ra6 Na4 Re6 Nb6 Re5 h4+
5N1N/8/1b3N2/b1p1b1K1/Pr1r1n1R/kP1qQR1r/PnN1qB1q/2BR4 b - - 0 1 legal: proof: h4 g5 e4 gxh4 b3 f5 exf5 a5 Ne2 a4 bxa4 Kf7 Ng1 Ke8 Na3 b5 Bd3 d5 Nc4 b4 Be2 b3 Na3 b2 Nb1 Ba6 Bd3 Bc4 Bf1 Bb3 Bc4 dxc4 cxb3 Qd4 Qe2 Qd6 Qd1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 g4 e5+ Ke4 h5 f4 c3 g5 h3 f6 h4 Kf5 c2 g6 h2 g7 h3 d5 e4 d6 e3 f7 e2 d7 e1B Qf3 Ne7+ Kg5 Nd5+ Kg6 Bc5 f8R Qe7 d8N Nc6 g8N Rb8 f5 Qe2 f6 Ne5+ Kg5 Bb6 f7 c5 Na3 b1Q Ne6 Nf4 Ng7 Rh4 Ne6 Ned3 Qe3 Nb2 Nf3 Rd8 Ne5 Rd4 Nf6 Bg3 Rg1 h1R Rd1 h2 Ng6 Rh3 Nh8 Rf1 Re8 h1Q f8B Qhh2 Bd6 Be1 Nf8 Rg1+ Kf5 Rg4 Re4 Rgh4 Kg5 Bc3 Bd2 c1B Be7 Qbd3 Nc2+ Ka5 Be1 B1d2 Bf2 Rb4 Rf1 Be5 Rad1 Rd4 Rg1 Bc3 Rg3 Bb4 Rf3 Bc3 Na1 Kb4 Bd6 Ka3 Bc7 Ba7 Ba5 Be1 Bd2 Bb6 Bc1 Bea5 N8d7 Rh7 Nf8 Rb4 Rc4 Rd7 Rd4 Nd5 Rg4 Nf4 Rh4 Rdd4 Nc2+
3BrNR1/3bq2P/PbQN1qP1/6q1/3N1N1n/6rn/3Bp2R/RnK2kr1 b - - 0 1 legal: proof: c4 a5 f4 g5 b4 axb4 e4 d5 cxd5 h5 g4 f5 exf5 Rh7 Bh3 Bh6 fxg5 Rh8 g6 Bg7 g5 Bf8 Bg4 hxg4 a4 Kd7 h4 Kd6 d4 b5 Kd2 e5 h5 c5 a5 b3 a6 b2 f6 b4 g7 b3 g6 c4 f7 e4 h6 e3+ Ke1 c3 Ke2 c2 Qe1 g3 Rh3 g2 Bd2 c1Q Kd3 e2 Qh4 Qf6 Qe4 Nc6 Rf3 Ne5+ Ke3 Ne7 g8R Bd7 Qd3 Re8 Qe4 Nd3 Nh3 g1R Na3 b1N Nc2 b2 Rf2 Nf4 Rh2 Bg7 f8N Nf5+ Kf3 Nh4+ Ke3 Rc8 h7 Rc3+ Kf2 Rcg3 Qh1 Ne6+ Nf4 Ng5 Qf3 Nh3+ Ke3 Na3 Kd3 b1Q Kc3 Qb4+ Kd3 Kc7 d6+ Kb6 d5 Kc5 Nd4 Nb1 Ke3 Qb7 Kd3 Qc7 Ke3 Qcd8 Kd3 Qa3+ Kc2 Qg5 Qg2 Qdf6 Qe4 Qe3 Qe8 Qee7 Qa8 Be8 d7 Kc4 d8N Bd7 d6 Bh6 Kb2 Bg7 Nh5 Kd3 Qc6 Bh6 Nf7 Bg7 Ba5 Ke3 Nf4 Bh6 Rh1 Kf2 Bd2 Kf1 Rh2 Bf5 d7 Bg7 d8B Bd7 N8e6 Bf8 Nd6 Bh6 Rg7 Re8 Kc1 Qa5 Nh5 Be3 Nhf4 Qag5 Nf8 Bf2 Rg8 Be3 N4b5 Bb6 Nd4
2RBNB2/nbrPb2K/QN1P2B1/n6b/4n1k1/1rRP2q1/q1Rp1B2/3r4 b - - 0 1 illegal: No proof kernel
N1rr2k1/1B2n3/3P1BRb/q1rN3n/1RP1b1p1/4r3/RQ2P3/b1K2BBn b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 axb5 e5 g4 exf4 gxh5 d5 c3 d4 Qc2 Ke7 bxc5 Kd7 c4 Ke8 Qc3 dxc3 Kd1 f5 d4 Kf7 h4 g5 h6 a5 b6 a4 c6 g4 c7 a3 h5 a2 d5 f3 d6 f2 b7 f4 h7 f3 h6 Nd7 b8R Bb7 c8B Qa5 Be3 c2+ Kc1 Be4 Nh3 Ndf6 Na3 Ne7 Bb7 Nh5 Nb5 Bg7 Rg8 Rc8 Nf4 Rc5 Rb1 a1B Nc7 Bf8 Bd4 Bg7 Ra8 Rc8 h8B Kg8 Rb4 Bf8 Bhg7 Rd8 Bg2 f1N Bg1 f2 Nfd5 Nfg3 Bf1 Rc8 Rh3 Nh1 Rf3 Rd8 Rf6 Rc8 Rg6 Rd8 Kd2 c1R Ra6 Rc8 Na8 Rc3 Kd1 Re3 h7+ Kf7 h8Q Rd8 Bg2 f1R+ Kd2 Rf5 Bf1 Rcc8 Kc1 Re5 Bh6 Rf5 Qb2 Re5 Bg7 Kg8 Ndc7 Rc5 Nd5 Qb5 Ra2 Qa5 Bh8+ Kf7 Be5 Bh6 Bg7 Kg8 Bf6+
1b4R1/2NR2N1/2B1P3/pq1Nr1qP/rQkN4/B1q1n2q/1P2nK1b/3qR3 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 h4 d5 cxd5 g5 a4 h5 axb5 Bf5 Ra6 Bg6 Ra5 gxh4 Ra1 h3 Qb3 h4 Qd1 Bh5 gxh5 Bb4 Kf2 Ba3 Ke1 Bf8 d4 Kd7 e4 Kd6 b6 c5 b7 f5 Ra2 f3 Nc3 f4 Ra1 f2+ Ke2 c4 Bg2 f1Q+ Kd2 f3 Ke3 f2 Rb1 h2 Nf3 h3 Ne2 c3 Qd2 c2 Qa5 Qg5+ Nf4 Qd1 Re1 h1Q Bd2 Nc6 b8N c1B Na6 f1Q Nc7 Qb5 Kf2 h2 Rg1 Nge7 Bb4+ Qc5 Re1 Nf5 Ba3 Ne3 Qb4 Rh7 Rg1 Re7 Re1 Bd2 Ra1 Qc2 Rad1 Bc1+ Rd2 Qc3 Rdd1 Re5 Rd3 Kd7 d6 Qb5 d5 Nd4 Rdd1 Ne2 Nd4 Kd8 d7 Bd6 Rd2 Ke7 d8R a6 Rg8 Kf6 Nce6 Bb8 d6 Ra7 d7 Qg1+ Kf3 h1Q d8N Qgh2 Rd3 Qh3+ Kf2 Bd2 Ng7 Ra8 Rb1 Qd1 N8e6 Bc1 Nc5 Ke7 Nd5+ Kd6 Rd2 Nf5 Rd3 Bf4 Ra1 Bh2 Nce6+ Kd7 Nec7 Ne3 Nf3 Kc6 Rb1 Rf5 e5 Ra7 e6 Re5 Ne7+ Kb6 Nd4 Ra8 Bc6 Ra7 Qd6 Ka5 Ned5 Ka4 Ndf5 Kb3 Nd4+ Kc4 Qe7 a5 Qf8 Rb7 Qe7 Qa6 Qd6 Rb4 Rd2 Ra4 Qf8 Qdc2 Re1 Qb5 Rdd1 Q2d2 Qb4+ Kd3 Nb3 Kc2 Ne7 Qc1 Rd6 Qd1 Nd4+ Kd2 Rd7 Kd3 Qd6 Kc4 Ned5 Bf4 Qe7 Bh2 Qb4+
8/qr4R1/qbPQ2R1/P1b1P3/Nn4K1/n1kBNB1r/nnB1p3/N3n2N b - - 0 1 illegal: No possible last move
r2N1qq1/1rBPq1R1/3QPp1n/bR1q1NN1/1b5P/1Rnk4/8/qBN3K1 b - - 0 1 illegal: No possible last move
RN1N1bn1/1k1QqNb1/2rq1N2/1Pb1q3/1r2pBB1/6B1/RnKbPP2/8 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 Be3 fxg4 Bg5 Nf6 Bc1 Ng8 h3 g5 Bd2 g3 Bc1 g4 Nf3 g2 Rg1 g3 Rh1 Bb7 Ng1 Bc6 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 a5 b4 e5 c4 h5 b6 d5 b7 Kd7 g5 Kc7 b5 d3 c5 a4 c6 d4 g6 a3 g7 h4 Rh2 h3 Qa4 a2 Qb3 e4 Qb2 Nd7 Qc2 Nc5 Nf3 g1B Na3 g2 Ne5 Na4 Nac4 Qe7 Nf3 Rh6 Ba3 Nb2 Nb6 Ra4 Nd7 Rb4 Rh1 Bh2 Nc5 g1B Bg2 Bd6 Ne5 Bh2 Ncd7 Bc5 b8B+ Kc8 Kc1 Bf4+ Qd2 h2 Nf7 Be3 Rf1 h1Q Bh3 Qh2 Bg4 Qhe5 Rh1 Re6 Rh8 Bh6 Bd6 Bg5 c7 Kb7 Nb8 Bf4 Qe3 d2+ Kc2 Bh6 Qg5 Rf6 Qf5 Be3 Rc1 a1B Qd7 d1Q+ Kb1 Qh2 Bf4 d3 Bg3 Qd2 Rc2 Rc6 Bf4 Qc3 Bg3 d2 Bf4 Nh6 g8N Qce5 Nf6 Ng8 Bg3 Rc4 Bb4 Rd4 Bc3 Rb4 Bd4 Bf4 Be3 d1Q+ Bc1 Qd3 Be3 B4h6 Bef4 Qdd6 Rd2 Qh4 Kc2 Qhg5 Rd3 Qd8 Ra3 Qee7 Ra2 Qf5 Be5 Bd2 Bef4 Qfe5 Ra8 Nc4 Rh1 Bac3 Rha1 Nb2 R1a2 Qg5 Nh5 Bcg7 Nf6 Qge5 cxd8N+
1k3B2/3RPnK1/4pr1B/q1bnP2q/r1B1Rn2/4P2b/4r2B/Q1RnN1N1 b - - 0 1 legal: proof: f4 a5 a4 d5 h4 g5 c4 dxc4 f5 gxh4 f6 b5 axb5 e6 e3 Qe7 fxe7 Kd7 Qe2 Kd6 Qf3 Ke5 Qd1 Kf6 e4 Ra6 Qb3 Rd6 Qa4 Rd3 Qd1 Re3+ dxe3 Bg7 Qd8 Bh6 Qd1 Bf8 Kf2 Ke5 Kf3 f5 b4 h5 g4 c5 b6 f4 b5 a4 g5 h3 b7 a3 b6 a2 g6 c3 g7 h2 Ba6 h4 Kg4 f3 Kg5 c2 Kg6 f2 Qe1 Kd6 Nh3 f1R Bb5 c4 Ng5 h3 Qc3 Nd7 Nf3 Rh4 Rg1 h1Q Qa5 h2 Ba6 c3 Bb2 c1N Nbd2 c2 Rg2 Ne5+ Kg5 Ne2 Re1 a1Q Qa4 c1R Bc4 Rc2 Ng1 Nf7+ Kg6 Nf6 g8R Nd5 Ndf3 Bg7 Rg4 Bd4 Rc1 Bc5 Ne1 Rf6+ Kg7 Nef4 Rd8+ Bd7 Qa2 Re2 b8B+ Kc6 Qb1 Qa5 Qa1 Kb7 Bc7 Ba4 Rd7 Bb5 Bd6+ Ka8 b7+ Ka7 Bd4 Qf3 Bc3 h1N b8B+ Ka8 Bde5 Nf2 Bbd6 Nd1 Bed4 Nh3 Bh2 Nhf4 Bb2 Kb8 Bbc3 Rf5 Bf6 Qh1 Bg5 Rf6 Bh6 Qf3 Rg3 Qh5 Rg4 Rf5 Bf6 Bc6 Bfg5 Rf6 e5 Bb5 Kg8 Bc6 Bf8 Bb5 Bgh6 Ba6 Bb3 Bd3 Bc4 Bf5 Rg2 Bh3 Kg7 Ng6 Rg5 Rd4 Rg4 Ngf4 Bb3 Ra4 Bc4 Ng2 Rd4 Ngf4 Re4
nN1BR3/n1bkb3/4q3/1P5r/1P1n2N1/rnB5/2P1nKnp/RBR1Q1R1 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 axb5 Bb7 d4 cxd4 f4 Bd5 fxg5 f4 h5 Be6 h6 Bf5 exf5 Bxh6 Bc4 Bg7 Bf1 Bf8 b4 h5 g6 e5 g5 d5 f6 a5 f7+ Kd7 g7 h4 g6 a4 Qh5 f3 Nc3 h3 Bf4 h2 Qh4 a3 Kf2 d3 Nge2 d4 Bg3 e4 Nc1 a2 Nd5 e3+ Ke1 f2+ Kd1 e2+ Kd2 e1N Bc7 Qe7 Kd1 d2 Ne3 Ra3 Ke2 d1N Qh5 d3+ Kd2 Nc3 Qh3+ Qe6 Ng4 Na6 Qe3 Ne2 Nb3 Rh5 Nd4 Ne7 g8R Ng2 g7 Nc8 Bd8 Nc7 Nc6 Be7 f8B Nd4 Qe1 Na7 Rc1 a1B Nb8+ Kd6 Kd1 d2 Bc4 f1N Ba2 Na8 Bb1 Bc3 Rh8 Bb2 g8R Bc3 Nc6 Kd7 Bg7 Qa2 Qe3 Nf3 Ke2 d1N Nge5+ Ke6 Nb8 Nge1 Qf2 Qb3 Ba2 N1d2 Rb1 Kd6 Qf1 Qe6 Ra1 Nb3 Bb1 Bd2 Qg1 Nc3+ Kf2 Bf4 Re8 Ne2 Rhg8 Qf7 Bh8 Qf5 Rg2 Qe6 Ng4 Be5 Bg7 Bf4 Bc3 Nfd4 Rg3 Be5 Rd3 Bf4 Rd1 Ng2 Rc1 Be5 Qe1 Bf4 Na6 Kd7 Rg1 Bc7 Nb8+
2k1q3/1qrbqQ2/N2Bq3/4p1B1/1N3P2/P2R3r/Rq2NPRn/b2R2bK b - - 0 1 legal: proof: e4 a5 b4 axb4 c4 h5 Be2 f5 exf5 d5 cxd5 Nc6 Bg4 hxg4 g3 Ne5 Nh3 Ng6 Ng1 Nf4 gxf4 Ra4 Ke2 Ra3 Ke1 Ra8 Kf1 Kd7 Kg2 g5 d4 c5 h4 b5 a3 c4 d6 g3 d5 b3 f6 b2 f7 b4 h5 g4 h6 b3 h7 c3 Ne2 c2 Rh4 Nh6 Qg1 Qe8 Bd2 c1Q Bb4 Bg7 Rh1 Qc7 Ra2 Ra7 Nbc3 b1Q f8N+ Kd8 d7 b2 Qd1 e6 Kg1 g2 Rh3 Qe4 Qb3 b1Q+ Kh2 Qc6 Re3 Kc7 d8R Qec2 Nd7 g3+ Kh3 Bf6 Nc5 Ng4 d6+ Kb8 d7 Rc7 Nd5 Ba1 Rc3 e5 Na6+ Kb7 Qc4 g1Q Bf8 Qbb5 Ndb4 g2 Qf7 Qb2 Rc1 Qbb6 Rd1 Qce6 Kg3 Nh2 Bc5 Rf8 h8R Q6e7 Rg8 Qh1 Rg5 g1B Rg8 Qd5 Rg5 Qdb3+ Kg2 Rh8 Kh1 Q3e6 Rg2 Rh3 Bd6 Qh8 Rdg8 Qa7 R8g3 Qhe8 Nc5+ Kb8 Rb3 Qb7 Rbd3 Q7f6 d8B Bd7 Nca6+ Kc8 Qg8 Qff7 Bg5 Qfe7 Qf7
1q2n2N/1B3BRP/1r2b1q1/P4n2/qkQP3N/1pbB2Nn/1nRB4/1K4b1 b - - 0 1 legal: proof: f4 e5 b4 exf4 c3 d5 b5 d4 cxd4 a6 Na3 axb5 Nb1 b4 g4 b5 d3 c5 Qb3 h5 gxh5 c4 Qc2 c3 Qd1 Ra6 Nd2 Rc6 Nb1 Rc4 dxc4 Rh6 Nd2 Rh7 Nb1 Rh8 e4 Kd7 h4 Kc6 a4 g5 c5 f5 a5 f3 e5 c2 Kd2 g4 e6 f2 h6 g3 e7 g2 e8B+ Nd7 h5 b3 h7 b2 h6 f4 Nh3 g1N Kc3 b4+ Kd3 Kb5 c6 f3 c7 b3 Ra2 Nf6 Nf4 Bb4 Bf7 Nb6 Rh3 Bc3 Qd2 Ne8 Rh4 Na4 Qe3 Be6 c8B Kb4 Ng6 Nh3 Bb7 Qb8 Bd2 c1B Rg4 Rf8 Be2 f1Q h8N f2 h7 Rg8 Nh4 Rg6 Qh6 Qe1 Qf4 f1N Qc7 Ne3 Rg3 Rh6 Rg7 Nf5 Bf1 Qg3+ Ke2 Qd6 Kd1 Qd7 Bd3 Rf6 Be1 Be3 Nd2 Bg1 Ne4 Rg6 Bd2 Rh6 Ng3 b1Q+ Bc1 Qc6 Rc2 Qa2 Bd2 Nb2+ Kc1 Qaa4 Kb1 Qg2 Qc6 Rf6 Ne4 Qg6 Qc8 Bc4 Ng3 Rb6 Qc7 Be6 Qc4+
qr2B3/n2P1K2/QnB1N1Nb/2q2B2/1R4NR/1q1P2P1/p4k1r/nq3r1B b - - 0 1 legal: proof: c4 b5 a4 bxa4 f4 e5 b3 d5 cxd5 Bb4 h3 Bf5 Bb2 Bg4 hxg4 Bd6 Bd4 Bf8 fxe5 g6 Be3 g5 Bf4 gxf4 Kf2 Kd7 Kf3 c5 Ke4 h5 Kf5 a5 e4 f6 Kg6 c4 g3 f5 d3 c3 d6 Kc6 g5 Kc5 e6 Kd4 e7 Ke3 e8B h4 b4 f3 b5 f4 e5 c2 e6 c1Q b6 a3 e7 h3 b7 a2 Kf7 f2 g6 h2 g7 f3 Bh3 f1R Nc3 a4 Nce2 f2 Bf5 a3 Qa4 Nf6 g8B Rh6 Nf3 Nc6 b8N Nd5 Ned4 Qc5 Ne5 Nb6 Ng6 Na7 Nbc6 Rb8 Rb1 a1N Rb4 a2 Ne6 Rh3 Qa3 Bh6 Qa6 Qc8 Nce5 Qb7 Bc6 Rh4 Rg1 h1Q d7 Rh2 e8B Qhd5 Rh1 Qb3 Bh7 Qa8 Bg8 Rc1 Bh7 f1Q Bg8 Kf2 Bh7 Rg2 Rhh4 Rh2 Bfe4 Qfd1 Bg2 Qb1 Bh1 Qdb3 Ng4+ Ke2 Ne7 Rf1+ Bf5 Ke1 Ng6 Ke2 N4e5 Kf2 Ng4+
1q1b2Br/1nQ3n1/rB3NRn/1P2N1n1/3BPK2/2n1pnP1/4RB1R/k1q5 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 g5 h4 d5 cxd5 gxh4 e4 fxe4 d3 e3 Ke2 Na6 Ke1 e2 Kd2 Nb8 Nh3 e5 Kc3 e4 Ng1 e3 Kb3 Bf5 Kc2 Be4 dxe4 Kd7 Nf3 Ke7 Ng1 Ke8 Kd3 Kd7 f4 Kd6 b4 e1N+ Ke2 a5 f5 Ke5 d6 c5 b6 h5 b5 a4 d7 h3 b7 c4 f6 h2 f7 a3 Qb3 Kd4 Qb4 h4 Qe7 a2 Bb2+ c3 Qe6 h3 Qc6 Ra6 Nd2 Nh6 Bc1 c2 Nb1 Be7 f8R Nf3 Qc7 Nc6 b8B Na5 Rf6 Nb7 Nc3 Ng5 Bb2 c1Q Rb1 a1N Rg6 Nb3 Ba1 Nd2 Rb2 Qf8 d8B Ndf3 Nd5 Qe8 Nf6 Qf8 Qg3 Kc3 Bb6 Bd8 Rd2+ Kb3 Qc7 Qg8 Bb2 Ka2 B2d4+ Kb1 Qe7 Qf8 Bg3 Qg8 Rb2+ Ka1 Bf2 Qf8 Qc5 Qd6 Qe5 Qb8 Qc7 Nh4 Nh7 Nd6 Nf3 Nb7 Rg1 h1N Ne5 h2 Nf6 Ng3+ Kd3 Nh7 Rh1 Ngf5 g3 Ng7 Bh3 Ng5 Be6 Nhf3 Bg8 Nd2 Be1 Ra8 Ke2 Ra6 Rg1 h1N Rg2 Nf2 Rh2 Nd1 Bf2 Nb1 Kf1 Ndc3+ Kg2 Nd2 Rc2 N5e6 Kh3 Nf3 Re2 Nf7+ Kg4 Neg5 Kf4 Nh6 Qd6 Ra7 Qe7 Ra6 Qc7
1brr1n1r/2n1k2n/3N1pBB/3N3P/PQRR1n1K/1rr1B1B1/3q3P/2N5 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Bh3 exf4 Bg2 Na6 Bf1 Nb8 gxh5 Ke7 d4 b6 e4 Qe8 d6+ Ke6 d5+ Ke5 d7 Bb7 d6 Bd5 exd5 Qd8 Qf3 Kf5 Qd1 Kf6 Kf2 g5 a4 c5 Nh3 g4 Be2 f3 Kg3 b5 Nf2 b3 Bf4 c4 Rf1 b2 Rg1 b4 Ra3 b3 Re1 c3 Rf1 c2 Bd2 c1R Be3 Rc3 Nd2 b1R Qe1 b2 Nc4 Rbc1 Bd3 b1R Nb6 Rbb3 Kh4 g3 Bg6 g2 Nd3 g1N Rf2 Nh3 Rc2 Rd1 Nc1 f2 Rd2 f1N Rd4 Rdd3 Bh6 Rc8 Qb4 Ne3 Ra2 Be7 Rc2 Nf4 Rc6 Rdc3 Rcc4 Qe8 d8B Nd7 Bc7 Qd8 Bb8 Nf8 d7 Bd6 Bc7 Be5 d6 Ned5 Bb8 Nc7 Ba7 Qe8 d8N Qd7 Nb7 Ke6 Bb8 Nf6 Ba7 Qd8 d7 Rab8 Nd6 N6h7+ Bg5 f6 Bh6 Qe8 d8B Qd7 Nb5 Qd5 Nd6 Qg2 Be7 Qd2 Bd8 Na8 Bc7 Ke7 Be4 Rd8 Bg6 Rbc8 Nb5+ Ke6 Rd7 Rb8 Nc8 Nh3 Bae3 Bf4 Nb6 Rbc8 Rdd4 Be5 Bd6 Bf4 Be7 Bb8 Bd6 Nc7 Bg3 Nf4 Nd6 Ke7 Nd5+
2N2NbR/2B2b2/P1K1N3/p1R5/Rbn3n1/1Rb1n1B1/1rP2PQr/3n1b1k b - - 0 1 illegal: No proof kernel
8/1RR4Q/1b2Nr1B/n1n1P2R/1nP1bNB1/K2k3b/bPr1p1Nr/6nN b - - 0 1 legal: proof: d4 h5 a4 b5 axb5 e5 f4 e4 g4 c6 d5 cxd5 gxh5 Qg5 e3 Qe5 fxe5 d4 Ra2 dxe3 Ra4 Nh6 Ra1 Ng8 c4 Ke7 h4 Ke6 b6 Kf5 b7 d5 h6 g5 h7 a5 h5 g4 h6 d4 Rh4 a4 Nd2 g3 Nh3 d3 Be2 a3 Qc2 g2 Kd1 g1N Nb1 a2 Bf1 e2+ Kd2 e1N Kc3 d2 Kb3 d1B Bf4 Bc5 Bg5 Ra6 Bc1 Bb6 Kb4 Nd7 b8N Bb7 Qh2 e3 Nf4 Ke4 Nc6 f5 Bh3 e2 Rh5 Nc5 Ng2 f4 Nd8 f3 Bg4 f2 Nd2+ Kd3 Ne6 f1B Ne4 Bb3 Ng3 Ne7 Nh1 Bc6 Bd2 Be4 Rd1 a1R Qh4 Re8 h8R Rc1 h7 Rc2 Ra1 Rd8 Bh6 Ba2 Rg8 Rf8 h8N Rf6 Rc8 Ra7 Rc7 Nc6+ Kb5 Na5 Kb4 Ra8 Ng6 Rh8 Ka3 Rh7 Ne3 Bh3 Ng2 Nef3 Rf1 Nd4 Rff5 Ndc6 Ng6f4+ Kd2 Rfg5 Nb4 Rgg7 Rh8 Ng6+ Kd3 Rb7 Rhf8 Rgc7 Rf2 Qe7 R8f5 Qh7 Rf6 N2h4 Rh2 Ngf4+ Ke3 Nhg2+ Kd2 Ng6+ Kd3 Ng6f4+
bR1B1N1b/2N3Q1/PN4nn/p3bRnK/2Bk4/4nPr1/r3Pr1B/4Nb2 b - - 0 1 illegal: No proof kernel
1N3bq1/1rq2BqR/k1b4B/2p2B2/r3bqPR/1PQR4/b3r1RP/3K2N1 b - - 0 1 legal: proof: d4 e5 b4 exd4 g4 h5 a4 b5 axb5 hxg4 Bh6 Na6 Be3 Bd6 Bc1 Bf8 f3 g5 Bh3 g3 Ba3 g4 Kd2 Nh6 Ke1 Nc5 Bf1 g2 Bc1 Nb3 cxb3 g3 Be3 Qg5 Bc1 Ng4 fxg4 Qd8 e4 c5 e5 f5 e6 a5 e7 d5 b6 Kd7 b7 Kc6 b8R d3 e8B+ Bd7 Be2 a4 Bh5 d4 Bg5 f4 Be8 a3 Rb7 f3 Bg6 f2+ Kd2 f1Q Bf5 a2 Rb8 Qf4+ Ke1 Rh7 Na3 Ra4 Bf1 d2+ Ke2 Qdc7 Rd8 Kb6 b5 Bc6 Qc1 d1B+ Ke1 d3 Bh6 Bdf3 Qc4 Bfe4 Qc3 d2+ Kd1 Qb8 Rd6 Rb7 Nc4+ Ka7 b6+ Ka6 Rd7 Qc8 Rc1 a1Q Rh7 Bb1 B1d3 Ba2 Be2 Qb2 Rc2 Qe6 Bf3 Qg8 Bd5 Qc7 Ne5 Qa1+ Ke2 d1B+ Ke1 Qc1 Nd7 Q1f4 Bf7 Bdf3 Rd2 Bfe4 Kd1 Qce5 Rd3 Qeg7 Nf3 Qc7 Rf1 g1R Re1 Rb8 b7 Rg2 Ng1 Re2 Rf1 g2 Rf2 Ra8 b8R Ra7 Re8 Rb7 Re6 Bd5 Ree3 Be4 Rh3 Qf4 Rh4 Qc7 Nh3 g1Q+ Rf1 Qe3 Ng1 Q8h8 Rf2 Qef4 Rg2 Qhg8 Nb8+
1n1R3r/K7/3NqB1N/2nq2r1/P3BRrb/B2p3b/p1PB2bP/1k2RQ2 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 gxh5 a5 a3 a4 b3 b5 bxa4 b4 Bb5 bxa3 Bd3 Ba6 Bf1 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 f3 g5 f6 d3 f4+ Kd4 h6 e5 h7 e4 f7 a2 f5 g4 f6 g3 Qf3 d2 Qh5 d1B Bg2 e3 Nd2 Kc3 Ngf3 d4 Nh4 d3 Be4 e2 Nc4 e1Q Rf1 g2 Rf4 g1R Qf3 Be7 f8B Qd5+ Kb6 Rg4 f7 Nf6 Nf5 Ra5 Qf1 Bf3 Nh6 Bg2 Nd6 Be6 Bd2+ Kb2 Rc1 Qe2 Re1 Nfd7+ Kc7 Nc5 Kb6 Rb5+ Ka7 Bh4 Be7 Bf5 f8R Be6 Rd8 Bf5 Bf3 Qee5 Be4 Qee6 Bc1+ Kb1 Bf8 Rhg8 h8B R8g5 Bd4 Rb6 Bf6 Rc6 B8e7 Rc8 Rd7 Rh8 Rd8 Rg3 Bf8 Bfh3 B8e7 R3g4 Bf8 Nb3 Bd2+ Nc1 Nb5 Bg3 Re2 Be1 B8e7 Nb3 Ba3 Nc5 Nd6 Qde5 Bdc1 Bh4 Re1 Q5d5 Bd2+
B2b1B1K/2q2q2/1PNpR2P/1r2n1n1/Rpr3b1/QN1Pnk2/8/q2R1NR1 b - - 0 1 legal: proof: b4 b5 f4 c5 g4 h5 gxh5 e5 a4 cxb4 axb5 f6 e4 f5 exf5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 a5 c4 g5 h4 g4 c5+ Kc7 Ke5 g3 b6+ Kc6 h6 g2 h5 f3 f6 f2 f7 a4 h7 a3 d3 a2 Nd2 Ra5 Qa4+ Rb5 Ngf3 g1Q Qa3 Qg2 Nb3 Bh6 f8R Qg6 Bg2 f1N Re8 Bd2 Rg1 Nf6 Nh2+ Ne4 h6 Rg8 h8R Bg5 Bb2 Qf7 Rd1 Ne3 Nf1 a1Q Bd4 Bh4 Bh1 Rg4 Re6+ Kb7 Rg8 Rf4 R8g2 Ng5 Bb2 Rc4 Bc3 Ra5 Ra2+ Ka6 Bb7+ Kb5 c6 Qde7 c7 Qd8 Nbd2 Kc5 Ba8 Rb5 Bb2 Ba6 c8N Qc7+ Rd6 Bb7 Na7 Bf3 Nc6 Bg4 Bc3 Qg8 Kf6 Qd5 Ne7 Nc6 Kg7 Ne5 Kh8 Qf7 Re6 d6 Nc6 Kd5 Re7 Kc5 Nb3+ Kd5 Rd7 Ke6 Re7+ Kf5 Re6 Kf4 Bb2 Kf3 Bc3 Nd7 Bg7 Ne5 Bf8 Nh7 Qb2 Bd8 Ra4 Ng5 Qa3
BbK1Q1q1/5P2/RNnrp3/N1kb1b1R/q1NP3R/3P4/3p1Brn/R4q2 b - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 d3 f5 exf5 b5 axb5 c4 Ke2 c3 Qd2 cxd2 Ke3 h5 Ke4 a5 Kd5 h3 f4 d6 b4 Kd7 g4 h4 c3 h2 b6 a4 f6 h3 f5 a3 g5 a2 b5 Bg7 b7 Ra6 f7 Ra5 f8R Ra4 b6 Re4 f6 Rc4 g6 Ra4 f7 Ra6 Ne2 Ra3 Nd4 Ra4 Nb3 Rh7 Bg2 Rh6 Na3 Rg4 Na5 Nc6 b8Q Be5 g7 Re6 b7 Nh6 Be4 Rg2 g8R Ng4 Rg5 Qe8 Rh8 Qg8 Rh4 Rg6 Rg1 h1B Rgh5 h2 N3c4 Bg3 Ba3 Bf4 Rac1 a1Q Bc5 Qa4 Bf2 Rh6 Qa8 Kc7 b8N Bf5 Ra1 Re6 Ne3 Kb6 Nd7+ Kb5 Rgb1+ Nb4+ Kd4 d5 Qe8 Bb8 Nec4 Rg1 Nb2 Rd6 Nbc4 e6 Bf3 Bg2 Be4 h1Q Bf3 Nh2 Ke5 d4 Ba8 Bd5 Kf6 Rb6 Ke7 Qhg2 Kd8 Qf1 Kc8 Rd6 Rf4 Ka6 Rfh4 Nc6 Rb7 Rg7 Ra7+ Kb5 Ra6 Rg2 Ndb6 Kc5 cxd4+
2nnRBK1/1nP1pr2/b1RR1N2/N2P1n1b/B7/5qPQ/k1n2rp1/B5B1 b - - 0 1 legal: proof: b4 a5 d3 axb4 g3 h5 Bh6 b5 Bf4 c5 Na3 g5 Bc1 g4 Bf4 c4 Nb1 c3 e4 d5 exd5 h4 Bc1 b3 Bb2 cxb2 Nf3 b4 Ng1 Bg7 gxh4 g3 h5 g2 Na3 Be5 Nb1 Bg3 fxg3 Bd7 Qg4 Bf5 Qd1 Bc8 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 f5 Kg6 f4 Kf7 f3 a4 f2 h4 Qd6 c4 Nd7 a5 Rb8 a6 Qc7 d6 Rb6 d4+ Kc6 a7 Qb8 a8R Ngf6 h6 Nc5 d7 Nb7 d8B Nd7 c5 Kd5 h5 Rh7+ Kg8 Ne5 c6 Rf7 Ne2 Kc4 Nbc3 b1B d5 b2 h7 b3 h8B Bg6 h6 b1N h7 b2 Rh6 Nd2 Rc1 b1N Bg7 Na3 h8B Rb2 Bf8 Ne4 Bb6 Ned6 c7 Nc6 Ne4+ Nc2 Nf6 Bh5 Nd4+ Kc3 Nb3 Ncd8 Bc4 f1N Qg4 Ne3 Na5 Nef5 Bb5 Qa7 Bg1 Qf2 Bd7 Qf3 Qh3 Ra2 Ba4 Kb2 Rb1+ Ka3 Rb6 Rb2 Rc6 Ka2 Rg6 Be6 Ng4 Nc8 Rf6 Bd7 Rfd6 Be6 Nf6 Bd7 Rc5 Bb5 Rcc6 Ba6 Ng4 Rb1 Ba1 Rf1 Nf6 Ne6 Rd8 Rf2 Re8 Ned8 Ra7 Bd3 Raa6 Bc4 Rd6 Bb5 Rab6 Ba6 Rbc6
r1NB1n2/1K1NQ2B/r1PpB2q/3bp1Rb/7k/1P1Pn3/n1B2b1R/2R4n b - - 0 1 legal: proof: e4 b5 Qe2 c5 Qh5 b4 Qd1 b3 axb3 c4 Ne2 c3 bxc3 Ba6 Ng1 Bc8 g4 h5 f4 f5 exf5 g5 Qe2 gxf4 g5 Qb6 Qg2 Qd8 Qg4 hxg4 Ke2 Kf7 Kd3 a5 Kd4 f3 Kd5 d6 h4 f2 f6 Kg6 h5+ Kf5 f7 g3 h6 Kg4 h7 a4 g6 g2 g7 a3 c4 a2 c5 Ra7 c4 Rb7 c6 Nh6 g8B Nd7 c7 Bg7 Kc6 Nf8 c5 Ra7 Na3 Be6 c8B Nf5 Rh2 Ne3 Nc4 Ra6+ Nb6 Bd4 Nf3 g1N Kb7 Ne2 c6 Ng3 Bd3 f1B Bc2 Be2 d3 Nh1 Ne5+ Kg3 Rb1 a1N Ned7 Bd5 Bd2 e5 Rc1 Qf6 Ba5 Bef3 Rg2+ Kh4 Rg5 Ng6 f8Q Bh5 Qe7 Nf8 Be6 Qh6 Bf5 Rg8 h8R Bc5 Bh7 Bd4 Na4 Ba7 Bd8 Bc5 Bb1 Nac2 Nab6 Nb4 Bc2 Bd4 Nf6 Na2 Be6 Ng2 Nfd7 Bf2 Nc8 Ne3 Ba5 Rg7 Bd8 Rf7 Rhg8 Rf4 R8g6 Rfa4 Rf6 Ra8 Rff5 R4a6 Rg2+ Qf6 Rfg5 Qh6 Rh2#
2BR4/3B1p2/1P1n4/4NPKn/2Nr4/R1rr1qkp/Q4PBN/n1rbN1b1 b - - 0 1 illegal: Other
2n1b3/P1Rp1N1N/KB2P2r/b4N1P/1b2b2r/4rn2/BQ1p2R1/1qR1k1N1 b - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 g4 b5 gxh5 c5 d4 cxd4 b4 axb4 cxb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Kg4 a4 Kg3 e4 Kf2 a5 g5 b6 f5 Kb5 g4 h6 b3 b7 d3 e6 d2 e5 f4 h5 g3 h7 b2 a6 f3 a7 g2 e7 Nc6 b8R Bb7 e8N Bb4 Nc3 b1B Nd6 Nge7 Rc8 Bg6 Nf5 Be8 Qc2 Ke1 Qb2 f2 Rc7 Nc8 Bc4 f1R Nd5 Rf4 Nf6 Rh4 Ba2 Ba5 Rh2 Nd4+ Kc4 Nf3+ Kb5 Bc6+ Ka6 Be4 e6 Rb8 Rb1 Rb3 Ra1 Re3 Rb1 Rg8 h8N Rg6 Nh7 Rh6 Nf7 Qf6 Qb8 Qc3 Ba3+ Qc1 Bc5 Qd1 Ra1 Qb1 Qb2 Bb4 Bb6 Ba5 Ne2 g1B Rg2 Bh2 Ng1 Bd6 Rc6 Qd1 Rac1 Bdb4 R1c4 Qc1 Rc7 Qb1 Rc1+
KRk5/P1Pq1B2/rP1pB3/b3n3/R2NQ3/1N1r2rN/1n1R1p1b/Nb5b b - - 0 1 legal: proof: f4 e5 fxe5 h5 d4 c5 g4 cxd4 gxh5 a5 b4 Qf6 b5 Qd8 Ba3 Be7 Bb4 Bf8 Bg2 axb4 Bf3 Nh6 Bxb7 Ng8 Kd2 f5 Kd3 g5 Kc4 g4 Kd5 d3 a4 f4 e4 f3 c4 d2 h4 d6 e6 b3 e5 f2 c5 b2 h6 g3 a5 g2 c6 Bd7 e7 Rh7 c7 Bc8 b6 Kd7 e8B+ Ke7 a6 Nc6 a7 Rh8 e6 Bg7 h7 Qd7 h5 Be5 h6 Bg3 Qa4 d1B Qe4 Bh5 Nh3 g1B Nd2 b1R Ra4 Rb2 Bf7 Be2 Nb3 Bg4 Na1 B1h2 Rd1 Rb8 Rd2 Bf3 Ba6 Na5 Bc4 Ra2 Bb3 Kf6 e7 Be5 e8N+ Ke7 Ng7 Nc4 Ne6 Bh1 Nd4 Nb2 Bc4 Ba6 Ndb3 Rf8 Be6 Rf3 Bf7 Rg3 Be6 Qd8 Kc6 Bc3 Bcd5 Bc4 Kb7 Qd7 Ka8 Bd3 Bc4 Ke8 Bcd5 Ne7 Bf7+ Kf8 Bde6 Rhg8 h8R Nc6 h7 Ke7+ Be8 R8g4 B8f7 Bb1 Rb8 Rd3 h8N Ba5 Rb7 Rgg3 Ng6+ Kf6 Ng1 Ne5 Nh4 Ke7 Nh3 Qc6 Bc4 Kd7 Nf5 Kc8 Nfd4 Qd7 Bce6 Bc3 Rc4 Ra6 Ra4 Ba5 Rb8#
1R1NK3/1n1r3B/bp2p1Bq/4NPnb/q2B2N1/P3R1QP/2n4N/2k1q1b1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 c5 d4 h5 Na3 hxg4 Nb1 c4 Ke2 Ra5 Ke1 Rc5 dxc5 Rh5 Be3 Rh4 Bc1 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 g5 f4 g3 h3 b6 d6 c3 Kd5 b3 a3 b2 c6 c2 c7 g4 d7 e6+ Kc4 g2 Kb5 g3 Qe1 Rh7 Nf3 g1N Nc3 b1B Nd1 g2 Be3 c1Q Bd3 Ne2 Rf1 g1Q Nh2 Na6 Qg3 Qe8 Nf2 Bc5 Kc6 Nh6 Ra2 Nf7 Bd4+ Ke7 Ra1 Ng5 f6+ Kf7 Rd1 Qe1 Nfg4 Rg7 Bh7 Bg6 f5 Bh5 Rb1 Qf4 Rb3 Qh8 Ba1 Bg1 Bd4 Nc5 Re3 Ba6 c8B Nb7 Rc1 Qe4+ Kc7 Qf8 Rc4 Qc2 Rc5 Qa4 d8N+ Ke8+ f7+ Ke7 Bd7 Qh8 Bb2 Nd4 f8N Nc2 Bd4 Rf7 Kc8 Qf6 Rc4 Qh6 Be8 Rg7 Beg6 Rf7 Qf3 Kd6 Qg3+ Kd5 Nd7 Re7 Nde5 Rd7 Rb3 Ke4 Rc5 Be2 Ra5 Bf1 Ra8 Ba6 Rb8 Qe2 Bf2 Qe1 Re3+ Kd4 Nd3 Kc3 Nde5+ Rd3 Kc7 Kd2 Kc8 Rd5 Kc7 Kc1 Kc8 Rb5 Kd7 Rd5+ Ke7 Rd7+ Ke8 Nd4 Re2 Nc2 Bd4 Qd1 Re4 Qe1 Re3
1R1q3q/qR1N1p2/4r2B/R1Pn1P1p/2KRNr2/1B2q2b/P2Q4/n1Nq1k2 b - - 0 1 legal: proof: c4 c5 b4 cxb4 d4 d5 h4 g5 hxg5 Bg7 c5 Be5 e4 Bd6 c6 Bc5 dxc5 d4 e5 a5 e6 a4 Qxa4 d3 Qd1 Bxe6 Bf4 Bf5 Bc1 Bc8 Kd2 h5 g4 b5 f4 e5 c7 Ke7 g6 Ke6 g7 Kd5 g5 Kd4 g6 b3 Nh3 b4 Na3 e4 Qe1 e3+ Kd1 e2+ Kd2 b2 Rb1 b3 Ng1 Bh3 c8R Nf6 g8N Na6 g7 Nb4 f5 Ra4 Rh2 Nfd5 Rb8 Nc2 Nf6 Rh6 g8R Na1 Nd7 Re6 Nb5+ Ke4 Rf8 Kf4 Qd1 Kg3 Nc3 Rf4 Bg2 Kf2 Rb5 Qe7 Rfb8 Qd8 Ra5 Qh8 Qc2 Qd8 Bf3+ Kf1 Ne4 Nc3 Ke3 e1Q+ Kd4 d2 Bh1 d1Q+ Rd2 Qe3+ Kc4 Nd5 Ne2 Qh8 Rd4 Qd8 Bd2 Qh8 Rc1 b1Q Qc3 Qc2 Rb1 b2 Nc1 Qa4+ Qb4 Qg4 Bf3 Qgg8 Bd1 Qd8 Bb3 Qa3 Be1 Qa4 Bh4 Qa3 Bg5 Qa4 Bh6 Qa3 Raa8 Qa7 Qd2 Qdf8 Bd1 Qb7 Ra5 Qa7 Nd3 Qfg8 Rc1 b1Q Rc2 Qab6 Rb2 Qa7 R2b7 Qd8 Bb3 Qd1 Nc1
4q2N/1rb1Np1p/bq2k2b/1P1n4/5rRb/K4R2/BRRPPQN1/B6b b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 f4 b5 a4 d5 cxd5 e5 axb5 exf4 Qb3 a4 Qc2 Nc6 Qd1 Na5 bxa5 Qd6 Nh3 Qf6 Ng1 Qd8 g4 Ke7 d6+ Ke6 d7 c5 g5 f3 g6 c4 a6 h3 g7 h2 a7 a3 Bg2 a2 Nh3 c3 Rg1 h1B Nf4+ Kf6 Na3 c2 Bb2+ Ke7 Ng6+ Kd6 Rb1 c1B Ba1 Qc7 d8R+ Qd7 Rb2 Ne7 g8N Ba6 Nc4+ Ke6 Rc8 Nd5 N8e7 Qe8 Ne3 Bh6 Rcc2 Rb8 a8R Rb7 Rf1 Rg8 Nh8 Rg4 Rac8 Rf4 R8c4 Rf5 Rg4 Rf4 Rb3 Ba3 Rbb2 Bb4 Qb1 f2+ Kd1 Ba5 Kc1 Bc7 Be4 Qc6 Ng2 Qe8 Bd3 Rd4 Bc4 Rf4 Re1 f1Q Rd1 Qg1 Rf1 Qb6 Rf3 Qd7 Rbb3 Rd4 Kb2 Rf4 Qf1 Qc8 Ka3 Qe8 Bd4 a1B Qf2 Bc3 Rbb2 Ba5 Bb3 Bc3 Bg7 Bf6 Ba2 Bfg5 Rb1 Bh4 Ba1 Rb4 Rbb3 Rf4 Rbb2
NB3nK1/Q2P4/4P2N/6P1/pB2bR2/n1q1N2n/Nnrpk1RB/5rnq b - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 gxh4 c4 e6 cxd5 Bb7 d6 Bc8 d7+ Ke7 f4 Bh6 e4 Kf8 d5 Bg7 d6 Qf6 e5 Nh6 Bc4 Qe7 Bd5 exd5 e6 Be5 fxe5 Ng8 Qd4 Qg5 Qd1 Qd8 Ke2 Kg7 Kd3 Kg6 Kd4 Kf5 b4 a5 b6 h5 b7 c5+ Kd3 d4 Kc4 Ke4 g4 f5 g5 a4 e7 h3 e8N d3 b5 d2 b6 Ke3 Kd5 h4 Ke6 h2 Kf7 h3 e6 f4 Ne2 f3 Na3 f2 Ra2 f1N Rg1 h1Q Rb2 c4 Ng7 h2 Nh5 c3 Rb1 c2 Rg2 Nc6 b8N Na5 b7 Ng3 Nf6 Ne7 Ra1 Qc7 d8B Ng6+ d7 Nf8 Ng8 Nc4 Nc3 Ne2 Nh6 Ng1 Na2 Qa5 Qf1 Qc3 Bc7 Ra6 Bg3 Rc6 Na6 Rh7+ Kg8 Rf7 b8B Bb7 Bb2 c1N Nc7 Nd3 Na8 Rf5 Qc1 Rf1 Nc2+ Kf3 Bge5 Na3 Ne3 Rc7 Rb1 Be4 Ba1 Rc6 Rb4 Nb2 Qc2 Rc8 Qd3 Rc4 Qd4 Rc7 Qa7 Rc4 Rg4 Ke2 Rf4 Qd4 Bed6 Rc2 Rc4 Qc3 Bb4 Qf3 Rg4 h1N Rg2+ Nf2 Bh2 Bg6 Rf4 Be4 Rg3 Qh1 Rg2 Qc8 Rgg4 Nfh3 Rg3 Nbc4 Be5 Nb2 Bb8 Qc3 Rg2+
1qB1r2R/q7/1N5b/Nk5p/q3nRR1/1B4n1/bPN1PqPp/KnQ1N3 b - - 0 1 illegal: No proof kernel forced: bxLB
3k2qq/R2b4/NQ3PB1/Pn1nRP1B/1nBR1p2/q4p1n/2R2r1r/4K1N1 b - - 0 1 illegal: No proof kernel
2R3BR/4Kn1Q/R2N1P2/p4r1N/5RPn/qBbP1r1n/4krpn/3N3q b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 f5 g4 d5 cxd5 fxg4 Ra2 e4 Ra5 Ne7 Ra1 Ng8 d3 g5 Kd2 g3 h3 g2 Na3 g4 Nb1 e3+ Kc2 g3 Bd2 Bg4 hxg4 exd2 Kb3 Kd7 Kc4 Kd6 b4 Ke5 f4+ Kd6 e4 c5 b6 h5 b5 h4 b7 h3 f5 Ke5 f6 Kf4 e5 Ke3 b6 h2 e6 Qe7 d6 Nd7 Kd5 c4 b8R c3 b7 c2 Nh3 c1R Be2 g1N Rc8 g2 b8R Nf3 Nf4 Nh4 Nh5 Rc2 Rf1 h1Q Nc3 Ne5 d7 Nh6 d8N Nef3 Ra6 Qa3 e7 Nh2 Ke6 Nf7 e8B Bb4 Nb7 Ba5 Qa1 d1N Nd6 Nf2 Ke7 Nh3 Bd1 Rf2 Bb3 Rh7 Nd1+ Ke2 Bc6 Bc3 Bcd5 Rf3 Be6 Rg7 Rh8 Rg5 Rbc8 Rgf5 Qc1 Rb8 Qh6 Rb4 Qh7 Rbf4 Rb6 a5 Ra6 Ne5 Bg8 Nf7 Rf2+ Ke1 Ra2 Rf2 Rc2 R4f3 Rc4 Kf1 Rf4 Ke1 Rc1 Ke2 Rc2+ Bd2 Rc5 Bc3 Rc8
3KNk1b/1qrR1N2/2P1bnqr/1R2PqP1/B2B1R2/4NN1q/4pQp1/4r3 b - - 0 1 illegal: No proof kernel
2bN1nK1/N2Np3/1Rq2N1B/5b1k/2p2P1r/2q1Qq2/2RPB1PB/1nb4q b - - 0 1 legal: proof: c4 a5 f4 f5 e4 fxe4 a4 b5 axb5 g5 h4 d5 cxd5 g4 Qf3 gxf3 Ra2 Ra6 Ra3 Rg6 Ra1 Rg5 hxg5 Ba6 Ra4 Bb7 Ra1 Bc8 Kf2 Kf7 Ke3 Kg6 Kd4 h5 Ke5 c5 b4 h4 b6 e3 b5 h3 b7 e2 b6 e1Q+ Be2 a4 d6 f2 d7 f1B Ke6 h2 Nc3 a3 Ra2 c4 Rc2 a2 Bb2 a1Q Nf3 Qad1 Nb5 Rh3 Na7 Nf6 Ne5+ Kh7 Kf7 Nd5 g6+ Kh6 g7 Qe8+ Kg8 Rh4 d8N Qg3 Nd7 Qc3 Nf6 Nd7 b8B Kg6 b7 Kh6 Rg1 h1Q Bd6 Qg6 b8N Qe4 Bc5 Kg6 Bg4 Bd3 Be2 Qf1 Bd4 Qff3 Rb1 Kh6 Bc5 Qg6 Bg1 Bf5 Bh2 Qe8 Ng4+ Kh5 Ba1 Qg6 Rb6 Qc6 Bb2 Qb3 Bf6 Nc3 Bg5 Nb1 Bh6 Qbc3 Nf7 Nc5 Nd8 Ne6 Nd7 Qe5 Kf7 Qec3 g8Q Bg7 Qh7 Be5 Kg8 Nf8 Qh8 Bd6 Qd4 Ba3 Qe3 Bc1 Ngf6+
Nr3Rbq/1bp1R2P/2k3QN/B1pq1q2/3r3P/5r2/1r2B1P1/bRK2B1B b - - 0 1 illegal: Other
6B1/k2N3B/3Qr1PB/1r4bR/3RR1R1/qqnP1qNq/r1pP2rp/7K b - - 0 1 legal: proof: a4 d5 f4 g5 c4 gxf4 h4 b6 g4 d4 a5 bxa5 g5 d3 exd3 Ba6 h5 Bb5 cxb5 Nc6 Nc3 Ne5 Nb1 Ng6 hxg6 Qb8 Rh4 Qc8 Rh1 Qd8 Kf2 Kd7 Kg2 Kc8 b4 Kb8 g7 f5 g6 h5 b6 e5 b5 c5 b7 e4 Qe1 f3+ Kh2 f4 Bb2 h4 Bh3 a4 Ba3 a5 Qe3 c4 Bc1 a3 Bb2 a2 Bg4 c3 Bh3 c2 Bc3 a4 Ne2 f2 Rc1 f1Q Nd4 f3 Ne2 a3 Qc5 e3 Be6 f2 Bd4 h3 Qb4 Qd5 Nbc3 Be7 Ne4 Bg5 Nc5 Qb3 Re1 Ra5 Ng3 e2 Be3 Ne7 g8B Nd5 Bh7 Nc3 Beg8 Ka7 Rac1 a1R b8R a2 Rd8 Rb1 Rd4 a1Q Nd7 Qaa3 Qd6 Rb2 Ra1 Ra2 b6+ Ka6 b7+ Ka7 b8R Rb5 Reb1 e1R Re8 Re2 Bf4 Re6 Rc1 Qe2 Rh1 Qf3 Rag1 f1Q Be3 Be7 Bh6 Bg5 Bf7 Rf8 Bfg8 Rff6 Rg2 Re2 Ree4 Re6 Rg1 Rf2 Kh1 h2 Rf4 Qg4 Rfe4 Re2 Rf2 Qfh3 Rf5 Rg2 Rfd5 Qf3 Rde5 Be7 Rh5 Bh4 Rge1 Be7 Rg4 Bg5 Ree4
RqBqRk2/bPB1n3/p1r2q2/P1R2p1Q/R5B1/3N1K1P/4N3/rrrq4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 bxc4 e4 d5 Bd3 Nd7 Be2 dxe4 Bf1 e3 Bg2 e4 Bf1 Ne5 fxe5 Ba6 Nf3 Bb7 Ng1 Bc8 Ke2 g5 b4 f5 d4 c5 a4 g4 b5 g3 e6 g2 h3 c3 d5 c2 h6 c4 d6 c3 e7 Bd7 Nf3 g1Q h7 Qg6 b6 Qf6 b7 Rc8 Ba3 c1R Ne5 c2 Nc3 Rc6 Nd3 Rb1 a5 c1R Bc5 a6 Bb6 Kf7 Ra4 Be8 Bc7 Ra1 Rh2 Rcb1 Bg2 Bh6 Bf3 Bf4 Kf1 e2+ Kg2 e1Q Ne2 Be3 Bg4 Ba7 Rh1 e3 Kf3 Qb8 Rg1 Qeh4 Rg3 Bd7 e8B+ Kf8 Bf7 Qhg5 Be6 Be8 Bc8 Ne7 Rg1 Rg8 h8R Rbc1 Qd2 Rcb1 Rc1 Qh4 Qd1 Qhg5 Nef4 e2 Rc5 e1Q Ne2 Qgh4 Qc1 Qd1 Qg5 Qe6 Qg6 Qhf6 Qh7 Qd7 Qh5 Qd8 Rb4 Qc1 Nf2 Kg7 Re5 Qa8 Rc5 Bg6 Be6 Qdc8 Ra4 Rd8 Bb6 Rd7 Rd8 Be8 Bc7 Kf8 Re5 Qf1 Rd5 Rcc1 Rc5 Qg1 Nd3 Qd1 Bb8 Rc7 Bd7 Rc6 Bc7 Qc2 Be6 Qd7 Rb8 Qd8 Bc8 Qd2 d7 Qd1 Re5 Bb6 Rc5 Qa7 Ra8 Qb8 Rb5 Bg1 Re5 Bb6 Rc5 Ba7 dxe8R+
3Nb3/Bn2P1b1/1Pn2rNk/PKNp1r1Q/B1r2p1R/q2p4/1R5B/N2q4 b - - 0 1 illegal: No possible last move, all moves rejected
Rq3nN1/1r3N1P/b2BbPRQ/1pr1B2B/1KP5/rp2q1Nq/1p6/2k2B2 b - - 0 1 illegal: No proof kernel
BK4N1/1QpB3n/P2p1bBP/2kNPr2/Nn3p2/N3q3/3n1nRR/2rn4 b - - 0 1 legal: proof: d4 a5 f4 b5 b4 axb4 c4 g5 fxg5 e5 dxe5 b3 g4 h6 g6 b4 g7 Bb7 g5 Bf3 g6 Bc6 Bg5 Bb5 cxb5 hxg5 Kf2 Ke7 Ke3 f5 Kd4 d6 Kd5 f4 e4 b2 h4 g4 a4 g3 e6 g2 b6 b3 b7 Qc8 e5 Rh6 h5 Ra5+ Bb5 Ra6 a5 Nd7 b8N Nb6+ Kc6 Ra7 Na6 Nd5 Na3 b1N Ne2 g1N Nb4 b2 Ra2 Nbc3 Qb3 b1N Rh2 Nd1 Nc3 Ngf6 g8B Nd2 g7 Nh3 Na4 Nhf2 a6 Rb7 Bd3 Nh7 Bg6 Qa8 B8f7 Qa7 g8N+ Kd8 Rg2 Bg7 e7+ Kc8 e8B Bf6 Qf3 Qe3 Bd7+ Kb8 Be4 Ka7 Bfg6 Rb8 Rh2 Rf8 Qh1 N5c3 Rc2 Na2 Nd5 Rf7 Bgf5 Rg6 h6 Rg1 Bg6 Rf8 Bg4 Nb4+ Kd7 Rf7+ Kc8 Be7 Bd7 Rf5 Ndc3 Bf6 Ba8 Nb2 Nd5 Rc1 Qe4 Nbd1 Rb2 Nh1 Nde7 Nf3 Rbg2 Nd2 Nc5 Kb6 Kb8 Nhf2 Na4+ Ka5 Nb2 Kb6 Qb7+ Kc5 Nd5 Qe4 Bc8 Qd3 Bd7 Qe3 Na4+
RN2k3/6nQ/rP4p1/Rr1PBRP1/1b1RpB1N/n4p2/1r2nK2/3qr2N b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Bh3 g4 Kd7 g5 Be6 Bh3 Ke8 Bg4 Bc8 d6 hxg4 f3 gxf3 d4 Rh3 e4 Kd7 e5 Ke6 d5+ Kf5 e6 Bd7 exd7 Kg6 Qe2 Rh5 Qd1 Rh8 b4 a5 h4 e5 b6 f5 b7 Kf7 b5 c5 h5 f2+ Ke2 f1R b6 a4 h6 g6 h7 e4 Qd4 c4 Bf4 a3 Rh6 c3 Be5 a2 Qd1 f4 Nf3 c2 Rh2 c1R Rh3 Rc5 Nc3 Nf6 Nh4 Qc8 d8R Re1+ Kf2 Qg4 d7 Nh5 Rd3 Ra6 Rd4 Rb5 Ne2 Bb4 Ng3 Nc6 b8N Ng7 Rf8+ Ke7 Qd3 Qd1 Rf5 f3 d8B+ Ke8 Qc2 Ne7 Bdc7 Nc6 Rd3 Nd4 Nh1 Ne2 Rd4 Rg8 h8R Rf8 Rb1 a1N Qc1 Nc2 Ra1 Rg8 Ra5 Na3 Bf4 Rf8 Bce5 Rg8 Qc7 Rf8 Rh6 Rf7 Qa7 Rc7 Rh7 Rc2 Qf7+ Kd8 Qg8+ Ke7 Rh8 Rb2 Qh7 Nb1 Rc8 Na3 Rc7+ Kd8 Ra7 Ke8 Ra8
6rb/4BRRP/8/3PPp1k/1r2Qnr1/qpp3qr/2BNN1BN/B2Kb3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 e5 Nh3 exf4 Ng1 h4 h3 g5 Bb2 Bf5 Ba3 Bg6 Bc1 Nc6 Bg2 Bh5 Bf1 Ne5 gxh5 g4 Na3 g3 Nb1 Ng4 hxg4 Bc5 Rh2 Bd6 Rh1 Bf8 d4 b5 a4 f5 e4 Kf7 e5 c5 d6 g2 a5 b3 a6 b2 h6 Kg6 g5 b4 a7 c4 d5 c3 h7 h3 d7 f3 Qb3 h2 Qc4 f2+ Kd1 Qe7 d8B Nf6 Nd2 b1R Qe4 Kh5 g6 Bg7 Ne2 g1B Bg2 Rg8 Ra4 Qf8 Be7 Bh8 g7 Rb8 a8B b3 Bc6 Rb4 Ra7 Qa8 Rd7 Qa3 Bb5 Rb2 Bd3 Ra2 Nd4 Rc2 Bb2 f1Q+ Qe1 Qf3+ Ne2 Qh3 Ba1 Bf2 Rg1 h1R Bde4 Rb2 Bc2 Qg3 Rc7 Rh3 Ra7 Re8 g8N Ra2 Nh6 Rg8 Ng4 Rb2 Qf1 Be1 Qf4 Ra2 Qe3 Rc4 Nd4 Kg6 Bd8 Qa6 Nf1 Qf2 Ne2 Raa4 Bf3 Nh5 Rf7 Rab4 Nd2 Qa3 Nh2+ Qg2 Bg5 Rch4 Be7 Nf4 Bfe4 Kh5 Qd4 Qf2 Rgg7 Rg4 Bg2 Qg3 Qe4
8/bb3pq1/pPN3Rr/P2R4/Qq4B1/nNN2k2/bK1b1BpP/R1n4R b - - 0 1 legal: proof: f4 e5 fxe5 b5 c4 bxc4 g4 h5 d3 cxd3 gxh5 d5 e4 a6 Bh3 d4 Bg2 Rh6 Bh3 Rd6 Bf1 Rd5 exd5 Ra7 Qe2 Rb7 Qd2 Rb6 Qe2 Rh6 Qd1 Rh8 Kd2 Ke7 b4 g5 a4 c5 h6 g4 b5 g3 h7 c4 a5 c3+ Ke1 d2+ Ke2 c2 Kd3 g2 e6 Kd6 e7 Ke5 e8R+ Kf4 d6 Bb7 d7 Nc6 Re5 Qe7 d8N Na7 Ba3 c1B Kc2 d3+ Kb3 Nf6 Qe2 d1Q+ Ka2 d2 Rc5 Ng4 Rd5 Ne5 Nc3 Nd3 Nc6 Qc5 Qe7 Qg4 Qh4 d1B Nf3 Bd2 Be2 Nc1+ Kb2 Bb3 Nfd4 Ba2 Nb3 Qd4 Bd1 Qg7 Bc5 Bd6 b6 Bb8 Bg1 Nb5 Bf2 Na3 Bf3 Ba7 Bd1 Rd8 h8R Rd6 Rd8 Rh6 R8d6 Bc8 Rg6 Bb7 Qe7 Qh4 Qf8 Qe7 Bg4 Qe4 Qb4 Qc4 Bh3 Kf3 Qa4 Qb4 Bg4+
2Rr1N2/nN6/3b2Q1/Br4bB/1PK3P1/Bp1R1bnk/n1bB1pPp/5N2 b - - 0 1 illegal: Other
1N4r1/1RN4r/Q2p4/PN1bN1Bb/P1n1B1kr/4R1P1/Knp1r2p/2R4n b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 h4 c5 h5 b5 h6 Qb6 bxa5 b4 d3 Qb5 cxb5 c4 d4 Bc5 dxc5 gxh6 Ba3 h5 Bc1 h4 Kd2 Ke7 Kc2 Kf6 Kb2 Kg5 e4 h5 a4 f5 b6 c3+ Ka2 c2 c6 d6 e5 b3+ Ka3 h3 e6 b2 c7 h4 b7 h2 e7 h3 e8N Nf6 g3 Rh4 Qe1 Ng4 Bd2 Nc6 b8R Nge5 Qe2 Nd3 Ra2 Bb7 c8N Nce5 Bg2 Bd5 Qf2 Nc4+ Kb3 Kg4 Be4 f3 Nc7 f4 Qe1 f2 Be3 f1R Ne7 f3 Na3 f2 Rb7 Rg8 Nc6 b1R+ Rb2 Rd1 Nf3 Rd2 Nab5 Re2 Nb8 Rh7 Ra2 Ndb2 Ra3 Rg1 Qc3 f1B Bg5 Rgg2 Rg1 h1N Qd3 Rh2 Ka2 Bg2 Rc1 Bf7 Nfd4 Bh5 Ndc6 Bf3 Bg6 Bd5 Be4 Rhf2 Rb3 h2 Rc3 Rf4 Ne5+ Kh3 Qd1 Rg4 Re3 Rh4 Qd4 Rgg7 Qb6 Rg8 Ned7 Kg4 Qa7 Rh3 Qa6 Rh4 Ne5+
R3Nr1N/q2r3q/1R1rP1N1/1nP5/1p4pQ/BN3r2/1K1P1p2/1R1b1rkB b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 g4 e5 gxh5 c4 a5 Bc5 c3 exf4 Qb3 d5 Qd1 Bb6 axb6 Na6 Nf3 d4 Ng1 Nc5 bxc5 dxc3 h4 Ke7 e4 Kf6 e5+ Kf5 h6 Ke4 b7 a5 b8N g5 h5 f5 h7 f3 h6 f4 Nc6 a4 Rh2 c2 Nd4 a3 Nb3 a2 Na3 f2+ Ke2 c3 Bh3 f1R Nf3 b4 Be6 Ra7 Rh4 Qb6 Rb1 a1R Ng1 Rf3 Bf7 Rd7 Be6 Ne7 Bb2 c1R Nh3 c2 Nb5 Rf8 h8R Qa7 h7 Nc6 Qh1 Ra6 Nc7 Rf1 Ba3 c1Q Ne8 Qc2 Rh6 g4 Rg8 Bb7 h8N Rb6 Qh2 Ba6+ Bc4 Bb5 Rd6 Ba4 e6 Ra6 Qf2 Rb6 Rc1 Qb1 Qe1 Nd4+ Kd1+ Re3 Bb5 Kf3 Bc6+ Qe4 Ba8 Kg2 Rb1 f3 Kc1 Nb5 Nf4+ Kg1 Kb2 Qh7 Qh4 f2 Bh1 Rf3 Nfg6 Ra6 Na5 Bd1 Nb3 Re3 Rb6 Ref3 Rb8 Rc6 Rb6 Rcd6 Nf6 Rff7 Ra8 Rf8 Ne8
BR3r1N/n6r/Rn2qP1n/K7/B1P3p1/R1pPBr2/Np4k1/Bn1q2Q1 b - - 0 1 illegal: No extended proof kernel
7r/2B2R2/1BN1q1kP/r1Qp1b2/P1np4/nb1BpP2/2N4p/n1RNK1B1 b - - 0 1 illegal: No proof kernel
3RB2N/2P3bN/4p3/Q3RPpR/KpNpbrP1/3qBNrk/5n2/3nn3 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 f5 e4 c5 exf5 cxd4 h5 Qb6 a4 Qg6 hxg6 b5 axb5 axb4 Kd2 h5 c4 d5 Kc2 Kd7 Kb3 h4 f4 d3 g4 h3 f6 Ke6 g7 d4 f5+ Ke5 b6 e6 f7 d2 c5 Kf4 c6 Kg3 c7 h2 b7 Rh5 Na3 Bd7 Nc4 Nc6 b8R Rh3 Nf3 Ne5 Rd8 Ra2 Nh4 Nf6 g8N Nf3 Ne7 Ne1 Neg6 Bg7 f8N Ne4 Nh8 Nf2 Nh7 Bc6 Be2 Rc2 Ra5 Be4 Re5 Rc3+ Ka4 Rf3 Qb3 d1N Be3 Rf4 Qc2 Bd5 Qa2 Be4 Rf1 h1Q Bf3 Ba8 Bc6 Qe4 Be8 Qd3 Rh1 Bb7 Kb5 Be4 Qa5 Rh2 Ka4 Rg2 N4g6 Rg1 Rh5 Rg2 Nh4 Kh3 Qc5 Rg1 Qa5 Rg3 Nf3+
5nR1/3N1kQb/nKBPp2R/5PpN/B2P3B/r3b2n/5p1p/2q1bN1B b - - 0 1 illegal: No proof kernel
2R1N2B/1nB1b2b/p3nb1p/P1pKP2p/3P1NN1/n1k1BrR1/2rB4/1Q6 b - - 0 1 legal: proof: h4 d5 c4 b5 cxb5 d4 e3 g6 h5 gxh5 exd4 Bh6 Rh4 Bg7 Rh1 Bf8 d3 f5 Kd2 e5 Rh3 e4 Nf3 f4 Kc3 e3 Rh1 Qd5 Ng1 Qe4 dxe4 f3 Be2 fxe2 Kb3 Ba6 Kc2 Bc8 Kc3 Kf7 Kc4 Ke6 b4 e1B f4 c5 g4 e2 a4 h6 b6 Kd6 b5 Na6 b7 Bd7 b8B+ Nc7 g5 Bd2 g6 e1N g7 Nc2 f5 Nf6 g8N Be7 b6 Ne8 b7 Nb4 f6 Be3 f7 Nc2 f8B Rh7 Nf3 Ke6 Bg7 B7g5 Bh8 Bc6 Nh2 Kd6 Rg1 Bd2 Nf6 Rf7 Nhg4 Bdf4 Nc3 Be5 Rg3 Na3+ Kd3 Bd7 Ne2 Bf5 Nf4 Bh7 a5 a6 Rb1 Kc6 Rb2 Nd6 Ne8 Ne6 Bc7 Bef6 b8B Nb7 Be3 Be7 Qb1 Bgf6 Kc3 Rf8 Kb3 Kb5 Kc3+ Ka4 Rb6 Nc2 Kc4 Na3+ Kd5 Rg8 Rc6 Rg6 Qf1 Kb4 Qb1+ Kc3 e5 Bf8 Bd8 B8e7 Rc8 Rg5 Bbc7 Rf5 Ng6 Rf3 Nf4 Rb8 Bc1 Nd6 Be3 Rb2 Bc1 Rc2 Be3 Nb7 Bc1 Bd6 Be7 Bh4 Bg5 Bf8 Ng2 Be7 Bge3 Bhg5 Nf4 Bgf6 Bcd2+
2Nnk3/Rq1B1r2/2p1q2N/1P6/K1Np2Q1/1pPr1Bp1/2B1RPrn/2N3n1 b - - 0 1 illegal: No possible last move
1rq2Nk1/2N1Q1rn/1p1P2P1/4Kn2/P2ppR2/B2N3p/Nq1r2B1/1RqR4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 c5 gxh4 d3 Bd7 Qc2 Bb5 Nh3 Bg7 Kd2 Bc4 Ng1 Be5 Qd1 Bd6 cxd6 c5 Ke1 Bb5 Rh2 c4 Rh3 c3 Rh1 Bc4 dxc4 Qd7 Be2 Qc8 Bf1 Qd8 Ke2 Kf8 Ke3 h5 Kd4 h3 f4 h2 a4 b6 g4 c2 c5 b3 g5 b2 g6 h4 c6 e6 c7 h3 c8N Qe7 f6 Rh6 f7 Nf6 f5 Qe8 Nf3 Qc6 Na7 Nh7 Qe2 Qc8 Nc3 b1Q Ba3 c1Q Ne5 Qbb2 Nb5 Rh5 Rg1 h1R Bg2 Rh2 Rb1 Ra7 Nc7 Nc6+ Kd3 d4 Ke4 Kg7 f8N Kg8 f6 Ne7 Na2 Nf5 Nd3 e5 Rd1 Ra8 Qe3 Rb8 Qg5 Rh6 Kd5 e4 Ke5 Rh5 f7+ Kg7 Bh1 Rd2 Bg2 Rh6 Nd7 Rh5 f8R Rh4 Rf7+ Kg8 Nf8 Rf4 Qe7 Rf3 Nc5 Rc3 Nd3 Rcc2 Na6 Rc7 Rf6 Ne3 Rf4 Nf5 Qe8 Rd7 Nc7 Rg7 Qe7
2n1R2r/r7/p4qB1/1p2r2Q/1np1PNKR/P1p1P1n1/N3N1BN/1R1k1q2 b - - 0 1 legal: proof: c4 e5 b4 d5 f3 dxc4 b5 e4 fxe4 a6 Na3 Bc5 Nb1 Ba7 g4 f5 b6 f4 bxa7 h6 Ba3 Kd7 Be7 Ke8 Bg5 Bf5 gxf5 hxg5 Kf2 Kd7 Kf3 Kd6 h4 Ke5 h5 Kd4 a3 b5 f6 c5 f7 g6 f8N c3 h6 c4 h7 Ne7 Bg2 Nbc6 Kg4 f3 Rh4 f2 e3+ Kd3 Ne2 f1R Ne6 Rf5 Qh1 Kc2 d4 Nc8 d5 Nb4 d6 Rd5 d7 Qf6 d8N Re5 Qh2 Kd1 N6f4 Ke1 Nc6 Kd1 Kg3 g4 Nd2+ Kc2 Rh1 g5 Nf1 Kd1 Qh3 Rb8 a8B Rb7 Rg1 Ra7 Nh2+ Kc2 Kf2 g3+ Kf3 Kd2 Kg4 Kc2 Bf3 g2 Rb1 g1Q+ Bg2 Qf1 Bb7 Rhe8 h8R Rf8 Nc1 Kd1 Nd4 Rd8 Nde2 Rf8 Kg3 g4 Bd5 Rd8 Bf7 Rg8 R8h5 Rh8 Bg6 Qh1 Kf2 g3+ Kf3 Qe1 Kg4 Qf1 Bf3 g2 Na2+ Kc2 Rh7 g1N Re7 Kd2 Bg2 Kc2 Nec1 Ne2 Re8 Kd2 Qf3 Ng3 Nce2 Kc2 Kh3 Kd2 Qh5 Kc2 Kg4 Kd2 Nac1 Kd1 Na2+
1b4rq/rqp2K1p/4Np2/BP1Q2P1/4B1P1/k1BNB3/3p2RR/r1q1Nb2 b - - 0 1 legal: proof: d4 b5 b4 e5 g4 exd4 f4 g5 h4 gxf4 c4 Bc5 cxb5 Be7 a4 Bb7 b6 Na6 b5 Bc8 a5 Nc5 a6 Bf8 Bb2 Nb7 axb7 Nf6 Ba3 Ne4 Bc1 Ng5 hxg5 Bc5 Nh3 Ba3 Ng1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 b8B a5 e4 d5 b7 d3 Bg2 a4 Nd2 f3 Bb2 a3 Ne2 d4 Nf4 a2 Bc3+ Ka3 Ba7 f2 b8B f1R Nf3 d2 Ne1 d3 Be3 Rg8 Rh2 Bb7 Bba7 f6+ Ke6 Bc5 Bb6 Ra7 e5 Rh1 Qf3 d1Q Bba5 d2 Kf7 Qc1 e6 Rf1 Rb1 a1Q e7 Be4 e8N Bd3 Ng7 Qa8 Bh1 Qb7 Qg2 Rg1 Nge6 Bf1 Nfd3 Qa2 Nb4 Qad5 Nbd3 Qd8 Qd5 Bh3 Rb3+ Ka2 Ne5 Qd1 Re2 Rg6 Bcd4 Ra6 Bf2 Ba7 Be4 Bb8 N1f3 Qh8 Rb1+ Ka3 Bfe3 Bg2 Bdc3 Ra7 Nd3 Rg8 Rf2 Bh3 Rh2 Qc2 Re1 Bg2 Re2 Ra1 Nfe1 Qc1 Rf2 Bf1 Rfg2
4Nq2/n2N2P1/rbRpP2R/1q1PN2r/r2QR3/6K1/1Bkp2pp/B1N4r b - - 0 1 legal: proof: f4 c5 a4 e5 g4 c4 Bg2 exf4 d4 b5 axb5 Be7 Be4 Bf8 Bd3 cxd3 h3 g5 Nc3 f5 Qd2 f3 Qd1 f4 Nb1 Bb7 Be3 Be4 Bc1 Bf5 gxf5 Nc6 h4 g4 Be3 Ne5 Bd2 Nf7 Bc1 Ng5 hxg5 Rb8 Kd2 Rc8 Ke1 Ra8 Kf2 Ke7 c4 Kd6 b4 a5 e4 h5 f6 h4 f7 d2 g6 h3 b6 a4 c5+ Ke6 e5 Kf5 b7 Ke4 b8N Kd3 b5 a3 d5 a2 e6 Qa5 c6 Qd8 g7 Ra6 b6 Qe8 c7 Rh6 c8R Ne7 b7 Rh5 Rc6 Nc8 Ne2 Na7 Nbc3 Ba3 Qa4 Qf8 Ne4 Bc5+ Qd4+ Kc2 Nf6 d6 Ne8 Ra4 Nd7 Ra6 Rb1 a1R b8B R1a4 Bb2 g3+ Kf1 g2+ Kf2 Qg8 f8N Qh8 Ng6 Qf8 Nc3 Bb6 Rbe1 Rh6 Nge5 Rh5 Kg1 f2+ Kh2 f1Q Re4 f3 Kg3 f2 Na2+ Qc4 Nc1 f1R Bc7 Qc5 Bd8 Re1 Bf6 h2 Rf1 Qc4 Rff4 Rh1 Rh4 Rf5 Rh6 Rh5 Bd8 Bc5 Ba5 Bb6 Bac3 Qcf1 Ba1 Qb5 Bcb2+
q5B1/1p1KR1Bq/1b1Bp1R1/1NP2pNq/1PP4q/nnq1N3/3pB3/Q6k b - - 0 1 illegal: No proof kernel
r1N5/rpp2p1B/p1b3r1/BB2b1P1/1pk1P3/1Rqn1NP1/1RB3KN/6Q1 b - - 0 1 illegal: No proof kernel
R3NB2/p2KQ1N1/6rq/B1R2p1q/2P1qpnP/1k3B1p/1P2Np2/n2Bb3 b - - 0 1 illegal: No possible last move
nqNB1K2/1Nb1r2q/1NR2Nq1/P4b1B/1n4B1/2q1q2r/Pb1R2kP/3Qr3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 d4 c5 Qe1 f5 Bb5 g5 Qd2 c4 Ne2 c3 Qb2 c2 Nec3 f3 Ke3 g3 Rf1 f4+ Kd3 f2 Kc4 f3 Qb3 g4 Na4 g2 Bh6 c1B Bd7 g1Q Bg5 b5+ Kb4 g3 Bd2 g2 Qd1 Ra7 Bg5 Rh3 Bh4 Nf6 Nbc3 Ne8 Nb6 Nc7 Be6 Bf4 Rc1 Na8 Bf6 Bg7 e5+ Kc7 Kc5 b4 Bg5 b3 Ne4 b2 d6+ Kb7 d5 b1Q d7 Na6+ Kd6 Nb4 Re1 f1R Re2 Re1 Rd2 Qd4 Bf5 g1Q Be6 Qbd3 Bg4 Qgf2 Be7 Qh4 Rcc2 f2 Ke6 Bf6 d6 Qh7 Rc3 Qc2 Rc5 Qa1 Rc3 Bg7 Kf7 Qc7 e6 Qb8 Bh4 Qab1 Rc4 Bb2+ Kf8 Qc3 Be7 Qbc2 Nf6 Be5 Be2 Qcg6 d8N+ Ka6 d7 Kb5 Nf7 Bf4 Rcd4+ Kc6 Rd6+ Kc5 d8N Be5 Bd3 Rb7 Rc6+ Kd4 Bf1+ Ke3 Be2 Rd7 Nb7 Bc7 Bd8 Kf4 Nh8 Rg7 e7 Bf5 Nf7 Qe3 Nfd6 Qc3 Qc2 Ke3 Bc4 Kf3 Ndc8 Kg2 Be2 f1Q Rd7 Rb1 Bg4+ Qe2 Rd2 Re1 Qd1 Qf2 Be2 Qfe3 e8B Re7 Bf7 Qgg5 Bfh5 Qgg6 Beg4+
1KB4Q/Bn3R2/1q4rP/qb2P1r1/kPrR1Bn1/1Rb5/rBq1b3/2N3rN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 f5 b4 c5 d4 g5 h4 a5 h5 f3 Kg3 c4 b6 f4+ Kf2 c3 h6 a4 d6 Kc6 d7 a3 b7 a2 Be2 c2 Ba6 g3+ Ke1 f2+ Kd2 f1B Kc3 f3 Qe2 g2 Kc4 g4 Bf4 c1R+ Nc3 f2 Nh3 g1R Rb1 a1Q Rb2 g3 Rb3 Qb6 d8R Nd7 b8B g2 Ba7 Nc5 Rd7 Qb1 Rf7 Bd7 Bc8 Nb7 Qd3 Nf6 e5 Ng4 d5+ Kc7 d6+ Kc6 Rh2 Be2 Rh1 f1R Nf2 Qc2 Rh4 Qa5 Nh1 Rg8 Kd4 Be7 Qh7 Rg6 Qh8 Bg5 Na2 Kb5 Kd5 Be8 d7 Ka4+ Bc5 Rf3 d8B Rg3 Bb6 B8b5 Bd4 Ra7 Bb2 Ra8 Bd2 Be3 Ba7 Bd4 Bf4 Bc3 Bc5 Raa6 Ba7 Rg5 Rg7 Rag6 Rf7 Ra1 Nc1 Ra2 Rh3 Re3 Rg3 Re4 Rd3 Rc4 Rd4 Re1 Rg7 g1Q Rf7 Nf6+ Ke6 Qf2 Ke7 Reg1 Ke6 Ng4+ Ke7 Rgc6 Kd7 Qe3 Bc5 Rb6+ Kc7 Rbg6+ Kb8 Qf2 Ba7 Qe3 Re4 Qeb6 Rd4
r2r1qq1/1N1B4/Pb2nPbn/BN2R3/3N4/1N1Qn1P1/K2b1R2/R1b1kqb1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 a4 Kf7 d4 Kg6 Kd2 Kf5 Kc2 b5 Kb3 h5 f4 c5 g3 e5 d6 e3 d7 Ke4 d5 h4 a5 e2 d6 e1B g6 h3 f5 c4+ Ka2 c3 f6 b3+ Ka3 h2 g7 c2 a6 b4+ Kb2 Nc6 Bd2 Bf2 Nh3 Nh6 g8N Nd4 Bg2+ Kd3 Ra3 e4 Ra1 e3 Rf1 h1N Bc6 e2 Qe1 Bg1 Qd1 e1B Bg2 Nf2 Bh1 Nfg4 Nc3 Ne3 Bc6 Bb7 Ba4 Be4 Ne7 Bg6 Nf5 Qb8 d8R Be7 d7 Bc5 Rf4 Bb6 Rc8 Qd6 d8N Qd5 Ne6 Rd8 Rf2 Qd6 Rc5 Qf8 Nhg5 Qg8 Rb1 Qf8 Ka1 b2+ Ka2 Qg8 Nge4 b3+ Ka3 Qf8 Ra1 b1Q Ned6 b2 Re5 Qc1 Bd7 b1Q+ Ka4 Qbb2 Ncb5 Qa2+ Kb4 Qd5 Ka4 Qb1 Ka3 Qc4 Qh5 Qd1 Ba5 Qe2 Kb2 Qf1 Nb7 c1B+ Kb1 Qd5 Qh3 Bed2 Qh4 Qdc5 Ka2 Qg8 Qh3 Qb4 Qh4 Kc2 Qe4+ Kd1 Qc2+ Ke1 Qd3 Qg7 Nec5 Qg8+ Nb3 Ne6 Nfd4 Qd6 Qc2 Qdf8 Qd3
1R1bR3/1B3P2/1R2RP1q/rb3K1N/r1r1N1Q1/k2b3n/4bP1B/nb1b1N1b b - - 0 1 illegal: No proof kernel
1Q2Bn1B/2r2nq1/2b1r3/1B1BbN2/1RR4k/2n3N1/r1NPPqP1/q1b2b1K b - - 0 1 illegal: No proof kernel forced: bxLB
k3Q1r1/bBnqnbqR/2b5/2Bbr1R1/2q2N1R/K3P3/PBrnB2P/5N2 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 d4 Kd7 Kd2 f5 Kc2 g5 Kb3 c5 e6+ Kc7 e3 b5 e7 Kb7 e8B c4+ Kb2 f4 d6 f3 d7 c3+ Kb3 f2 d5 c2 d6 g3 Nh3 g4 Bf7 g2 Nc3 g1R Bb2 c1Q Qc2 g3 Qh7 g2 Ng5 Na6 Qc2 Ne7 Qd1 Rh5 Nb1 Nc7 Be2 f1B Nh7 Re5 Bd4 Qc4+ Kb2 b3 Bc5 b4 Ng5 Rb8 Ne6 Ka8 Nf4 Bb7 Nd2 Bc6 Rb1 Rc8 Be6 Qe8 d8R Qd7 Rc1 Bg7 Rh8 Bf8 Kb1 b2 Rh7 Bd5 Rc3 Bg7 Kc2 b1B+ Kb2 b3 Ka3 b2 Rh4 Bbe4 Qa4+ Kb7 Qb5+ Ka8 Rd3 Rg8 Rh7 Bc6 Rd4 Bed5 B6g4 Qc8 d7 b1N+ Kb2 Qe8 d8B Bh8 Bc8 Qd7 Nb3 Nd2 Ka3 Ng6 Bf6 Ne7 Bd1 Bd3 Be2 Rc1 Rg1 Bg6 Re4 Bgf7 Bg7 Rh5 Bb2 Re5 Rd4 Rc2 Re4 Nf3 Nd2 Bg7 Nf1 Nd2 Rh1 g1Q Rd4 Qg3 Rg1 Qg6 Rg5 Bf8 Nh5 Qh6 Rh4 Qg7 Nf4 Ng6 Bb4 Bc5 Qa4+ Ba7 Bc5 Qb5 Qe4 Ne7 Qg6 Qc4 Qe6 Nf5 Qe8 Ne7 Bb7+
qRb3r1/1N1N1Pn1/n1NqP2K/1nQ5/rP6/5brb/NR4q1/b1B2RkB b - - 0 1 illegal: No proof kernel
3r2b1/b2rP2N/4R2P/Q1kB2B1/B1n2b1K/1q2N2R/qN2P2r/Nn3nbq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 Kg3 a5 h4 g5 b4 d5 c4 f5 c5 f4+ Kh2 a4 b6 g3+ Kg2 g4 b5 a3 c6 a2 c7 d3 h5 d2 e6 Kd6 e7 d4 b7 d3 b6 Be6 c8B Nc6 b8N Kc5 b7 Bh6 Na3 Qb6 Rh3 Qb3 Nf3 Na5 Rb1 a1Q Nh2 Nc4 Qe1 d1Q Nc6 d2 b8N Nf6 Bd7 Qaa2 Nc2 Bg8 N6b4 Nd5 Na1 Nc3 Ba4 Rh7 Rb2 Nb1 Rc2 Rh8 Rc3 Ra7 Re3 Rd7 Re6 Bg5 h6 f3+ Kh1 f2 Bg2 f1N Bd5 g2+ Kg1 Bf4 Kf2 g1B+ Kg2 g3 Ng4 Qaa3 Ne3 Qaa2 Kf3 g2 Kg4 Bf2 Kh5 g1B Nd3+ Kd4 Nb2 Kc5 Nec2 B2e3 Kh4 Bd4 Qf2 Qe1 Ne3 d1R Qg3 Rd3 Bd2 Qc1 Qe1 Qcd1 Nf5 Rg3 Ne3 Rg2 Bc1 Rh2 Qa5+ Qb5 Nc6 Qdb3 Ne5 Qd1 Nf7 Qdb3 Ng4 Qf3 Ng5 Qh1 Nh7 Bde3 Qe1 Qbb3 Qc3 Bb8 Qe1 Bef4 Ne3 Ba7 Ng2 Bfb8 Bg5 Bf4 Qd2 Bf7 Ne3 Rhd8 Qe1 Bg8 Qa5+
1rn2R2/N1P3n1/Q2Nb2N/r4rn1/qqP2Pqb/nRRR1k2/3K3b/1BB5 b - - 0 1 illegal: No possible last move, all moves rejected
2k3bR/Pn4bB/3R1r2/qP3N2/R1n1b3/2PBq2n/6qB/KRrQnN1r b - - 0 1 illegal: No proof kernel
RK1b1N2/8/1B2Pk2/1nNP3b/1r1nrBQR/Pb1b1qnB/b7/N1N2br1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 Kf2 Ke7 Kf3 b5 Ke4 f5+ Ke5 c5 d4 g5 e4 c4 h4 g4 h6 f3 a3 f2 h7 c3 h5 f4 h6 b3 Bd2 c2 Rh5 c1N Nf3 g3 Qc2 b4 Qd3 g2 Be3 g1R Nc3 b2 Bh3 b1B Ra2 f1B Ne2 b3 Nd2 b2 Nb3 f3 Bf4 f2 Qc4 Be6 Rh4 Nf6 Na1 Nb3 Nc1 Na6 d6+ Kf7 d7 Nc7 Qe2 Be7 Qg4 Re8 h8B Be2 h7 f1B Bg7 B6c4 d5 Nh5 Bf6 Bbd3 h8N+ Kf8 B6g5 Kg7 Ng6 b1B Rc2 Nb5 Nf8 Ba2 Ke6 Qc8 e5 Ra4 Rb2 Qc5 d8N N3d4+ Kd7 Bcb3 Nb7 Qc3 Nc5 Bd8 Kc8 Ng3 Kb8 Rb4 Be3 Kf7 Bgf4 Ke7 Qc8 Bh5 Qg4 Qe1 Rc2 Qe2 Rc3 Qf3 e6 Kf6 Na6 Re7 Rc8 Ra7 Nc5 Ra5 Kb7 Raa4 Ra8 Ndf5 Bf2 Re4 Kb8 Nfd4 Be1 Rc4 Ba5 Rb4 Bb6
1rnk3n/4b1n1/n2R2bn/3QB2q/1qnNB1NB/P1PK4/3N1P2/1nr2RB1 b - - 0 1 illegal: No possible last move, all moves rejected
R2bb1bB/1r1k2r1/1Qn3n1/1r1Nr3/PPR2B2/4N3/KPB1qnn1/RRr5 b - - 0 1 illegal: No proof kernel
5N2/3nrk2/b1b1r1Nr/RnB3PB/4R1P1/5KnN/2q1PR1b/1QNnbb2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 f5 b4 a5 g4 d5 c4 h5 b6 h4 b7 a4 b5 a3 b6 f3 c5 d3 c6 d4 c7 f4 Rh2 a2 Nd2 h3 Rg2 h2 Qa4+ Kf7 Ne4 h1B Rb1 a1B Qa6 d2 Rb2 d1N+ Ke1 d3 Qb5 Na6 b8R Rh6 b7 Ra7 Nd2 Bb4 Ra2 Nf6 Rf2 Nd7 Nh3 Be5 Ra5 Qf6 Ba3 Qc6 Bg2 Qc2 Kf1 Bed6 Nb3 Be1 Nc1 d2 Ra8 Be5 b8N Bb7 c8N Nc7 Qb1 Ba6 Nd3 Nb5 Bc5 Rc7 Ne7 Rcc6 Ng6 Re6 Kg1 Bd6 Rf1 f2+ Kh2 Bc7 Bc6 Be4 Nc1 f3+ Kh1 Bh2 Ra4 Bd5 Re4 Re7 Rg1 f1N Rg2 f2 Ra7 Ne5 Nd7 Re6 Ndf8+ Nd7 Rg3 Re7 Kg2 Re6 Re3 Ng3 Kf3 f1B Ra3 Ne3 Ra8 d1R Ra5 Rd4 Ra7 Nd1 Rb7 Na7 Ba4 Nb5 Rb6 Re7 Re6 Bc6 Rf6+ Kg7 Bb3 Rd6 Bf7 Rde6 Ngf4 Bg1 Bh5 Bh2 N4g6 Nf2 Ke3 Kg8 Rf3 Nd1+ Kf4 Kg7 Rf2 Kf7 Kf3
3R4/6Bn/rr1b3R/P1kPrb2/q1br1r1r/1QR2P2/N1BB4/q1nK2NB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kd7 g4 Kd6 a4 h5 g5 b5 f3 e5 a5 c5 g6 h3 f6 b3 f7 h2 g7 c4 Bg2 c3 Bh6 h4 Bd2 e4 Ne2 c2 Bh3 c1Q Ra2 e3 Bc3 b4 Nf4 e2 Rb2 Ra6 Bg4 h3 Nd3 Rh4 Na3 Qd7 Rg1 h1R Bd2 h2 Bf5 Nf6 g8B Qa4 Bg6 Bf5 B8h7 Nc6 Nc2 Rf4 Nf2 Qca1 Nh3 Ne5 Rf1 Bd3 Bf5 Bc4 Ng1 Be7 Rb1 b2 f8B b3 Rc1 b1B Bg7 b2 Nb4 Bc2 Bd3 b1R Na2 Rbb6 Bhf5 Bb1 Qb3 Nh7 Bh3 Bc2 Bg6 Bf5 Bg2 Bf8 Nh3 Rg1 Bh1 Rgg4 Rg1 Rh4 Rg3 Be7 Ng1 Bf8 Rh3 Be7 Kf2 e1R Rc3 Rd1 Ke3 Nd3 Ke2 Rh5 Rh4 Rg5 Rh6 Nc1+ Ke3 Bc8 Kf2 Re5 Bc2+ Be6 Rh3 Bf5 Rh6+ Kd7 d6 Kc6 d5+ Kc5 d7 Bd6 Be1 Rdd4 Bd2 Be4 Ke1 Bd3+ Kd1 Bf5 Bg2 h1R d8R Rhh4 Bh1
1Rnbbn1b/1PB1q1nk/1Q2N3/2rN2qB/R1PK2nr/2Bn2B1/3P4/n5N1 b - - 0 1 illegal: No proof kernel
bn3QRq/Rr2n1nr/4kb2/b2N4/K1NN1Rn1/b1q3nN/P1BP3P/2B5 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 f4 Kd7 d6 b5 f6 e5 f5 c5 f7 g5 f6 g3 Bc4 e4 Nf3 g2 Qc2 g1N Kd1 g4 Nc3 e3 Qb2 g3 Kc2 g2 Kb3 e2 Nb1 e1B Qe5 Bb7 Qf4 Nh6 Qe4 Nh3 Bb2 g1N Bc3 Bh4 Qg4+ Nf5 Bd3 c4+ Kb2 b3 Ne1 b4 Qf4 Ra7 Na3 Ke6 d7 Rh7 Nec2 Ba8 Rb1 Rb7 Qh6 Ng7 Ne3 Nf2 Nd5 Ne2 Rhf1 Ng3 Bc2 Ng4 Rf4 Be7 Rg1 Qh8 f8R Bd8 f7+ Bhf6 Rg8 Ba5 d8N+ Kd6 Nc6 Ke6 Kb1 b2 Bd4 c3 f8N+ Kd6 Ng6 Kd7 Ba4 Ke6 Kc2 b1N Kb3 c2 Bb2 c1B Nc4 Nc3 Rgf1 Ne8 Qf8 Ng7 Ba1 Ba3 Bb2 Kd7 Bc1 Ke6 Nde3 Nd5 Rg1 Ne7 Nd5 Bfb2 Rgf1 Be5 Rf7 Bf6 Ngf4+ Kf5 Nh3+ Ke6 Bb5 N3f5 Rf2 Ng3 Ka4 b3 Rf4 b2 Ba6 b1Q Nd4+ Kd7 Nd6 Qe4 Bd3 Qf3 Bc2 Qc3 Nc4 Bg5 R7f6 Bh4 Ra6 Bf6 Nc6 Ke6 Ra7 Rb5 Bd1 Rb6 Bc2 Rb7 Nd4+
1nQ3Bb/br2Rb1b/kN3Bq1/1R4b1/4nP2/2P1KN2/1B1nPR2/1qnB3r b - - 0 1 illegal: No proof kernel
3BQn2/1BN5/bN1n3K/rN4B1/P1Pbq2n/3P2nR/1q1b3b/BRk1br2 b - - 0 1 illegal: No possible last move
Nq2n1bk/Bnb5/R1B2r2/1Rn1Qb1P/2R1P2N/K5NR/1n1qPrb1/3n4 b - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 f3 b5 axb5 e4 fxe4 c5 Qd3 cxd4 Qd2 Rh6 Qd1 Rh8 Kd2 g5 h4 d5 c4 f5 Kc2 Kf7 Kb3 Kg7 h5 a5 c5 d3 c6 d2 c7 d4 b6 a4+ Ka2 f4 b4 d3 b5 a3 b7 g3 b6 g4 Rh4 f3 Nh3 f2 Ng1 g2 Qe1 d1B Bg5 g3 Rf4 d2 Bh4 Na6 b8N Nf6 b7 Ne8 Nc3 Rh6 Nc6 Bf5 b8R Kh8 c8R Nc5 Na7 Bd6 Rb6 Rf6 Ncb5 Bc7 Rcb8 Nb7 Nf3 g1Q Rc1 g2 Nc8 Qh2 Rc4 g1N Nbd6 Nh3 Ra6 Ba4 Bg5 d1N Nh4 Nb2 Qa5 Ra7 Bg2 f1B Rf3 Nf2 Nb6 Nfd1 Bh3 Bg2 Be3 Bad7 Kb3 a2 Ka3 a1N Qe5 Nb3 Na8 Bde6 Bg4 Bd5 Rh3 Bg8 Bd4 N3c5 Bf2 Bg6 Ndf5 Qd2 Ng3 B6h7 Bd7 Bf5 Ra5 Ra6 Bc6 Rb6 Ra6 Rb3+ Ka2 Rf3 Bd4 Rf2 Ka3 Na5 Rb5 Nab7 Qd6 Ne6 Ba7 Nec5 Nf1 Qe5 Ng3 Qef4 Qd4 Qd6 Qc3 Qd8 Qd4 Qb8 Qe5
nB2k2r/b4r1b/3RRr1q/Q4P1b/1Nbr4/qB3N1R/rB1PP3/B4n1K b - - 0 1 illegal: No possible last move, all moves rejected
q7/2r2rQR/2PRrkNb/Nr1nrb2/K5P1/1n1q4/3q2P1/2RqBNRB b - - 0 1 illegal: Other
2Bn4/B1b1P1N1/2qN1KR1/B1rQ1Pr1/5RNN/4b1Pq/2kr3r/1n1bb1r1 b - - 0 1 illegal: No proof kernel
nr6/1BNkB2n/2q4n/r4QbK/b1q1PN1N/2P1R3/N1Rb1nP1/r1R2b2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 h5 Kf3 d5 e4 f5 b4 a5 b6 a4 b5 a3 g6 h4 g7 h3 b7 d3 b6 a2 Bb2 d4 Qd2 h2 Ba3 Nd7 b8R Ngf6 g8N Bb4 b7 Qb6 Qe2 d2 Nh3 d1R Qf2 d3 Nh6 d2 Qd4 Qc6 Ba6 Nb6 Rf1 h1N Bc4 Nh7 Be6 Nf2 Qg7 Ra5 Ng8 Na8 Qf6 Ng4 Re1 Nh6 Bd5 Kd7 Re3 Rh1 Qe5 d1N Nc3 Nf2 Rc1 a1B Na2 Bd2 Ne7 Bb2 c3 Re1 Rc2 Ra1 Ng6 Bbc1 Be7 Re8 Nh4 Rg8 Ke2 f3+ Kf1 f4 Qf5+ Kc7 Kg1 Bd7 Kh2 Rh8 Rf8 Rg8 Rf7 Rc8 b8N Be8 Nd7 Rb8 Nc5 Bd7 Rf6 Be8 Ne6+ Kd7 Nb4 Nh1 Rf7 f2 Na2 f3 Nhf4 f1Q Kh3 f2 Rf6 Qfc4 Nc7+ Qe6 Bb7 f1B Nf3 Nf2+ Kh4 Qc6 Rf7 Qc4 Kh5 Qc6 Qc5 Qc4 Nh4 Ba3 Qg5 Bc5 Qg6 Bd4+ Rf5 Bf6 Rb5 Bg5 Rb1 Nf5 Rbe1 Nh6 Rec1 Qf6 Ba3 Kd8 Bd5 Ba4 Be7+ Kd7 Bb7 Qfc6 Qf5+
1rNnbBn1/q3rkR1/nnRQ1qq1/4b3/P5P1/1KR2P1N/3rNq2/3B1R2 b - - 0 1 illegal: No possible last move, all moves rejected
q6n/r1Nb4/2q1B3/Bnb1rPrn/3QNN1N/R1P1r1nK/k1P1R3/3q1R2 b - - 0 1 legal: proof: e4 b5 h4 g5 a4 gxh4 axb5 c5 e5 c4 e6 c3 dxc3 fxe6 Bd2 e5 Bc1 e4 g4 e5 b4 d5 f4 Kd7 Kf2 h5 Kg2 a5 g5 h3+ Kg3 a4 g6 h4+ Kh2 d4 b6 Kc6 g7 a3 f5 a2 b7 d3 Bf4 Kb5 Qf3 Ka4 b5 e3 b6 d2 Qg4 d1Q Ne2 e4 Nd2 Ka3 Ng1 e2 Ndf3 e1R Nd2 e3 Bc4 e2 Rc1 a1N Nf1 Nd7 b8N Ngf6 g8R Nh5 b7 Bc5 Be3 Ra7 Re8 Nf8 Nf3 Bd7 Qd4 Ng6 Ng3 Rg8 Rf1 Nb3 Be6 Nh8 Na6 Ka2 b8N Rg5 Nc6 Qa8 Nd8 Qc6 Nc7 Qa8 Kh1 h2 Kg2 h1N Rb1 h3+ Kh2 Qc6 Ne4 N1g3 Nh4 Qa8 Bc1 Qc6 Ba3 Qa8 Bb4 Qc6 Kg1 h2+ Kg2 Qa8 Ba5 h1Q+ Kf2 Qf3+ Kg1 Qc6 Kh2 Qa8 Kh3 Qc6 Bg8 Qa8 Nde6 Qc6 Qd3 Nd4 Rb3 Nb5 Nf4 Qa8 Qd4 Qc6 Nf6 Qa8 Be6 Qfc6 Rh1 Rg1 Ne4 e1R Re7 Re3 Re8 Rge1 Rf1 R1e2 Nd2 Rf3 Bd5 Re5 Bf7 Rd5 Re2 Re3 Ne4 Re5 Bc4 Rb7 Be6 Ra7 Ra3+
b3rb2/r2N2Bn/2nNb3/n1Q1Pr2/q7/Pq1B2kb/4RNP1/N1KB2Rn b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 e4 Kd7 d4 Kd6 Kd2 h5 g6 b5 g7 c5 a3 f5 Bb2 b3 Be2 c4 Bc1 b4 Rh4 b2 Nh3 c3+ Kc2 b3+ Kd3 f3 Bf1 c2 Kd2 f2 Qe2 f4 Qf3 Qa5+ Qc3 f3 Ra2 Ra7 Ra1 Nf6 g8B Nc6 Bd3 f1R Nf2 Qa4 Rf4 h4 e5+ Kd7 d6 h3 d5 h2 Bf7 h1N Re4 Nh7 Qc5 Bb7 Re3 Ba8 Bh5 Rg8 Re2 Rh8 Nc3 b1B Nb5 b2 Nd4 Ba2 Nb3 b1Q Re1 Qb2 Re2 Rg8 Rb1 Rh8 Na1 Qbb3 Bb2 c1N Bd4 Rb7 Be3 Ra7 Bh6 Rg8 Bg7 Rh8 Nd1 f2 Bf3 Qb7 Bh5 Nb3+ Kc2 Nba5+ Kc1 Qbb3 Bf3 Ke8 d7+ Kf7 d6 Ke6 Bh5 Be7 Bf3 Re8 Bh5 Bf8 d8N+ Kd7 Nf7 Ke6 Bb5 Kf5 d7 Kf4 d8N Kg3 Bd3 Be7 Nd6 Bf8 Rbb2 Bb1 Ne6 Ba2 Re1 Bb1 Rbe2 Bc2 Bc4 Bf5 Bd3 Bh3 Bf3 Rg1 Bg4 f1B Nf2 Ne7 Ra2 Nec6 Bd1 Be2 Rd2 Rf1 Rc2 Beg4 Rce2 Be7 Nf8 Be6 Nd7 Bf8 Ng4 Rf2 Rg1 Rf5 Nf2
3r2N1/R1Nb4/B2B4/N2P2rr/1qbnPq1R/1PQ4n/1K3R1k/rRn2bb1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 e4 Kd7 g4 Kd6 d4 f5 Kd2 h5 Kc2 a5 g5 c5 b6 a4 b3 f3 g6 a3 b7 h3 g7 h2 Qd2 a2 Ba3 f4 Bb5 h4 Be8 h3 Qd1 f2 Qc1 f1B Ba4 f3 Bd7 f2 Bb2 c4 Qh6+ Nf6 g8R c3 Qe3 Nc6 b8R Nh5 Ne2 Qa5 Na3 Nf4 Rg7 Qb4 Rb1 a1R Ng3 Ra5 Nh5 Bc4 Nf6 f1B Ng8 Rc5 Bg4 Bd7 Be2 Be7 Kc1 c2 Qc3 Bh4 Re8 Bf2 Rf8 Bg1 Rff7 Rb5 Rg3 Rh5 Rf3 Rb8 Rg7 Rg5 Rh7 Rd8 Rh4 Bf2 Rg1 h1Q Rgg3 Rh5 Rg7 h2 Bd3 Bg1 Rf7 Be8 Ra7 Nh3 Be2 Qg2 Bd3 Qg7 Be2 Qc7 Nb5+ Kd7 d6 Ke6 d7 h1R Ba3 Rg5 Kb2 c1N Bd3 Qf4 Nc7+ Kd6 d5 Nd4 Be2 Ke5 Bd3 Rb8 d8N Bd7 Nb7 Rd8 Be2 Nf2 Rg4 Rhh5 Na5 Nh3 Rh4 Qg4 Rg3 Kf4 Re3 Nf3 Rd3 Kg3 Re3 Kh2 Bd3 Qb7 Bd6+ Qf4 Be2 Nd4 Rf3 Qb4 Bd3 Bcb5 Bc4 Bbc6 Ba6 Bcb5 Qc6 Bbe2 Qc3 Bc4 Rf2+
4BB1b/R2b4/K3N1qn/P3r2r/1Pr1n2r/Bnkb1R2/RB2Pq2/2N2Q1b b - - 0 1 illegal: No possible last move, all moves rejected
1bq1B3/qnN2P2/2q2Rn1/k5BN/3N1rQ1/nn1BPqb1/2P3N1/r2b1RK1 b - - 0 1 illegal: No proof kernel
5R2/r1qRb1n1/n7/P5Nr/rN1r2nk/1RP1B1BB/1B1P2b1/Q1n1Kbb1 b - - 0 1 illegal: No proof kernel
r2N4/4nbnb/5r2/P4nQ1/BKPq2n1/4kNBR/NRPr2N1/1rbb3R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 d3 gxh4 Nh3 c5 Ng1 c4 dxc4 Qa5 Be3 Qb6 Bc1 Qd8 Kd2 Kf7 a4 Kf6 g4 Kg5 f3 Kf4 g5 d5 a5 e5 f6 h5 g6 b5 f7 e4 g7 e3+ Kd3 d4 Bh3 b3 Qe1 b4 Ba3 e2 Kd2 d3 Bg2 h3 Bb2 h2 Qd1 e1N Bd4 b2 Bc3 h4 Bd4 h3 Ra2 b3 Kc3 d2 Bc5 Nf6 g8N Nd3 Ne7 Nf2 Nf5 Nh5 Ng3 Rh6 Qf1 d1B Bd6+ Ke3 f4 Ng4 f5 Ng7 f6 Bf5 Nh5 Bh7 Bg3 Ba3 f8R Nc6 f7 Ne7 Nf3 Rf6 Rh8 Qd6 f8N Qc5 Rg1 h1B Ne6 h2 Nd8 Qd6 Nf4 Qd7 Nbd2 b1R Ne4 Bc1 Kb4 b2 Nc3 Qd4 Bh3 Ra1 Qg2 b1R+ Rb2 Ra3 Na2 Rd3 Rf1 Rd2 Rg1 Ne5 Bd7 Ng4 Qf1 Bg2 Ba4 Bh3 Qg2 h1N Qh2 Bg2 Qh4 Bh3 Qg5 Bg2 Bh4 Ng3 Rh1 N3f5 Be1 Bh3 Bg3 Bg2 Nh4 Bd5 Nf3 Bdg8 Rh3 Bf7 Rh1 Bhg8 R8h3 Bh7 Ng2+
1BR3nb/1r2P3/b1Q1P1r1/N1q2kbB/n1R5/Prnr1nKB/3b3B/1N1R4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 Ke7 e4 Ke6 h4 g5 c4 d5 a3 b5 h5 f5 c6 b3 c7 b2 h6 b4 h7 b3 c5 g3+ Kf3 d4 c6 g2 Be2 g4+ Kf4 d3 Qe1 d2 Ra2 d1R Bc4+ Qd5 Bf1 g3 Ra1 Qc5 Be2 Rd3 Bd1 Ra7 Rh5 Bg7 Nh3 g1B Rh4 g2 Bf3 Na6 Qd1 Rb7 Kg3 Be3 Bh5 g1B Nf2 Bg5+ Qf3 Bd2 Nd1 Bge3 Qh1 Bg5+ Ne3 B7f6 Qf3 Bg7 Nc4 f4+ Kh2 B7f6 Na5 Bg7 Qg2 f3 Kg3 f2+ Qf3 f1R Rf4 Re1 Rg4 Ree3 Rf4 Bd7 c8R Be8 c7 Bb5 Nc3 b1N Rg4 Ke7 e6 b2 e5 B7f6 Rc4 Bg7 Ne4 Nc3 Rb1 B7f6 Ra1 b1N Bb2 Na4 Nc3 Nb4 Bc1 Nd5 Bb2 Nh6 Bc1 Rg8 h8B Rg6 Bb2 Bc1 Bg7 Nd2 Nb1 Ba6 Bd4 Qd6 Ba7 Qc5 Bb8 Ng8 Bh6 Rdb3 Bg7 Ndc3 Bh8 Re1 Qc6 Rd1 Bg7 Nf3 Bh6 Bh8 Bg7 Rd8 Bf6+ Kf8 e7+ Kf7 Bg7 Rd6 Bh6 Ke6 Bg7 Rf6 Bh6 Bge3 Bf4 Kf5 Kh3 Nd1 Nc3 Qb6 Bh2 Rd3 Kg3 Bcd2 Rc1 Re6 Nb1 Ndc3 Rd1 Qc5 Rf8+ Kg5 c8B Rg6 Bh3 Bf4+ Kg2 Bfe3 e6 Bf4 Rc8 Bfe3 Rg4+ Kf5 Kg3 Bg5 Rc4+
Qqn1q2r/1Rk2q1R/P3b1B1/bP1rRR2/1P3b2/3N4/nrNN1pn1/B4K2 b - - 0 1 illegal: No proof kernel
4nn2/1R1rN2P/2N2R1q/1P2n1rk/b2r1PB1/3qBBp1/2q4N/KQ1bbN2 b - - 0 1 illegal: No possible last move, all moves rejected
2K5/1NP1Nb1n/P3n1p1/q1nk1B2/r1bPqR1b/R2N3r/1N1R2q1/1rB3Q1 b - - 0 1 illegal: No proof kernel
3KB2B/qpB2P2/2R1b1P1/r2P2r1/1R1R2r1/nnb1qR2/kQbN1Nq1/6n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 h5 g4 h3 a4 b3 f4 Kb4 d4 c5 a5 c4 g5 h4 g6 b2 d6 c3 f6 c2 d7 Kb3 Ke6 h2 d5 h3 a6 Rh5 f5 Rg5 a7 Na6 f7 Nc5+ Ke5 Nf6 Bf4 Qa5 d8B Bg7 f8R Be6 Bb5 Nfe4+ Rf6 Nd2 Qf1 c1R Qe1 Rc4 Be3 Rcg4 Ra4 Qa6 Re4 Ka2 Bc7 Ncb3 Rb4 Qa5 Qc1 Qa4 Na3 b1N Nc4 Na3 Be8 Qa6 Bd4 Qb6 Nf3 Qc5 Rd1 h1Q Ba1 h2 Ne1 Qg2 Nd3 h1B Rf1 Qa5 Rf4 Qc5 Nf2 Nf3+ Ke4 Qg3 Nd2 Ng1+ Ke5 Be4 Bb2 Qh3 Rf3 Qg2 Bd4 Bc2 Bc3 Rd8 a8R Qa7 Rc8 Rd6 Rd3 Ra6 Rdd4 Ra5 Ba1 Bd7 Bc3 e6 Kd6 e5 Ke7 e4 Kd8 e3 Rf8 e2 f6 e1Q Rd3 Nh3 Bg3 Nd4 Rc6 Bf5 Bc7 Nb3 Rf3 Qee3 Rh8 Re4 f7 Ng1 Rh4 Be6 Ba1 Bf8 Bh8 Bg7 Rg4 Bc3 Rgf4 Ree5 Rfe4 Rg4 Red4 Reg5 Qb2+
1bB2r1N/5RR1/N1n1Npn1/5rqQ/bnP2P2/1rR2P2/1R4kn/2KbB1n1 b - - 0 1 legal: proof: d4 b5 h4 c5 a4 cxd4 axb5 g5 f3 Qc7 e3 Qf4 exf4 gxh4 Kd2 e5 b4 h5 g4 a5 c4 d5 b6 f6 b5 Kf7 g5 Kg6 b7 e4 b6 d3 Na3 a4 Qe2 d4 Qd1 e3+ Ke1 e2 Kd2 e1R Nh3 Re3 Ra2 Nc6 b8R Bd7 b7 Bd6 Ng1 h3 Rf8 h2 b8N h4 Bb2 Kh5 g6 h3 g7 Kh4 Ne2 Nge7 g8R Ra5 Nb1 a3 Na6 Ng6 Nc5 Bb8 Rg1 h1N Nec3 h2 Qe1+ Ng3 Re8 h1N Re6 Nf2 Nd5 Nh3 Rg7 Rf8 Nbc3 Be8 Rg2 Ng1 N3a4 Kh3 Rf7 Bd7 Kd1 d2 Na6 Rb3 Ne7 Rf5 N4c5 Be8 Bd3 Nf1 Qe5 Nh2 Bc3 Bd7 Rb2 a2 Kc2 d1B+ Kc1 a1N Be1 Nc2 Rd6 Be8 Ne6 N2b4 Rgc2 Bd7 Rc3 Be8 Bc2 d3 Rd7 Kg2 Rb7 Nh4 Ng6 d2+ Kb1 Bd7 Nh8 Ng6 Qa5 Nce5 Rg7 Ba4 Rbf7 Nec6 Be4 Nd4 Bb7 Ndc6 Nac7 Be2 Bc8 d1Q+ Rc1 Qd2 Rc3 Bd1 Na6 Qf2 Bd2 Qg3 Kc1 Rh5 Qf5 Rg5 Qg4 Rf5 Qh5 Qg5 Be1+
Q3R3/RnN1P3/NBR2B2/bBP5/nrnK2b1/P4q1B/2r1b1p1/2bbrk2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 c5 dxc5 e5 fxe5 axb4 Kf2 Ke7 Ke3 Ke6 h4 Kf5 c4 g5 c6 b5 e6 d5 h5 d4+ Kd3 b3 a3 b4 e7 g3 e8B Kg4 c7 f5 h6 f4 e4+ f3 e5 g2 h7 Kg3 e6 Kf2 e7 b2 Qb3 g4 Qc3 b3 Rh4 g3 Ra2 Nd7 Qa5 Nb6 Qg5 Ra4 Ne2 g1B Qe5 g2 Nd2 b1N Qb5 b2 Rh6 Nf6 Qg5 Ne4 Rg6 Nd6 Bc6 Rb4 Nf4 Bg4 c8R Nb7 Ne6 Na4 Qd5 Bh6 Nb3 Nd2 Bd7 b1R Nc7 Qf8 Rc6 Ra1 Bb2 Re1 Nc5 Qf7 Ra8 Rc8 h8B Bh2 Ra7 Bg3 Ne8 Bc7 Bf6 Ba5 Na6 Kg1 Qe4 f2 Nec7 Qd5 Be2 f1B Bc3 Qf5 Rb2 Be3 Rb3 Qf3 Rb1 Rb8 c5 Nc4 Qd5 Rf8 Qg8 Rf7 Qa8 Bc1+ Kc2 Rf8 Bd3 Be2 B7f5 Ne5 Bb5 Nc4 Bd2 Kf1 Bc3 Bh5 Bh3 Bg4 Rb2 Nab6 Bd2 d3+ Kc3 Na4+ Kd4 Rb8 Bf4 d2 Rb3 d1B Bd6 Qf5 Rg3 Qf3 Bde5 Bf5 Rg8 Bg4 Re8 Rd8+ Nd5 Rd7 Bc7 Rd6 Bb6 Re6 Nc3 Re3 Nd5 Rc3 Ndc7 Rc2 Re6 Bf4 Rd6 Bc1 Rc6
2Br1N1k/b3NK1n/2b1n3/1b1RBQ2/npnRRq2/2N1PP2/5P1n/N4q1r b - - 0 1 illegal: No proof kernel
2b3K1/Bq3R1R/1r2qq2/4P1Qb/n1PN2P1/q1n5/NR2r1kp/2bq1RNB b - - 0 1 illegal: No possible last move
1RQ2Bb1/b2N1B2/1nqr2k1/Bb2p3/2bP2P1/1rN5/4nKPb/B1nqRR2 b - - 0 1 legal: proof: e4 d5 b4 a5 c4 axb4 cxd5 g5 h3 g4 hxg4 f5 Qb3 fxe4 Qf3 Qd7 Qd1 Qd8 a4 Kf7 f4 h5 d4 e5 d6 b5 d7 c5 a5 c4 a6 c3 a7 e3 f5 h4 f6 c2 Nf3 h3 Bc4+ Kg6 f7 h2 Bb2 c1N Nc3 b3 Bf1 e2 Ng5 b4 Ra2 Rh3 Nh7 Qe8 d8B Nf6 Rg1 h1Q Qd2 Nbd7 Nd5 Ba6 Ne3 Nh5 Nf5 Bc4 Bb6 Ng3 Ra6 Bc5 f8B Rd8 Ba1 b2 a8R b1B Be7 b3 Ra5 b2 Nf6 Bbd3 Bf8 b1B Qc2 Bba2 Rb8 Bb5 Bc7 Bdc4 Kf2 Nb6 Nd7 Bg8 Qc3 Bac4 Ne3 Qe6 Nd5 e1B+ Kf3 Bd2 Kf2 Bf4 Be2 Qd6 Re1 Qc6 Bd1 Nge2 Bb3 Bh2 Ra3 Na8 Ba5 Ba7 Qc2+ Rd3 Nc3 Nb6 Ra2 Re8 Rb2 Re6 Rb1 Rd6 Rf1 Na2 Rbe1 Nac1 Ne4 Rh3 Ba2 Rb3 Qc3 Bcd5 Qc5 Bdc4 Nc3 Qe4 Qc7 Qc6 Qc8 Ra3 Rg1 Bd3 Be6 Bdc4 Rd1 Rb3 Bd5 Bf4 Be6 Qh3 Bd5 Qd3 Rgf1 Bh2 Rde1 Qd1 Bf7+
1n2K1NB/1R4N1/1n2BP2/2kq1P2/1b2b1rP/5n2/rbQ2RBp/q1b1bNB1 b - - 0 1 illegal: No proof kernel
3RnQ1r/2n2nb1/2P4R/2p1NRN1/r3b1q1/1BPrn2B/P2kqN1K/2Nn4 b - - 0 1 illegal: No proof kernel
4NBk1/3bn2q/K1P1B1B1/1PP1q3/nbpr4/2NQ1q1b/3N2rb/1b1R2RN b - - 0 1 illegal: No proof kernel
Q1Bn1b2/7P/pqb1qN1n/Pq4Nr/4Bq2/Pq1N4/2n1KNRR/1k4rB b - - 0 1 illegal: No proof kernel
2qq3N/1nb2nP1/2q2r1P/b6N/QkpNB1r1/1q3P1R/1B2q2N/2Kb2BR b - - 0 1 illegal: No proof kernel
q3BN1K/bkr1rPQ1/1rNR3B/5nP1/1p1R3r/6Pb/2R4q/1b1r1NRn b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 fxe4 b4 d5 cxd5 axb4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 b5 d4 h5 a4 e3 f4 b3 f5 c4 d6+ Kb7 g3 h4 a5 b2 d7 e2 f6 e1R+ Ne2 h3 f7 h2 d5 c3 d6 b4 Qd4 c2 Ra2 Nh6 Nd2 b1B Bb2 c1R Rg1 Red1 Nf4 h1Q Ne6 Qh2 Bb5 Nf5 Nf1 Rc7 Ba1 Ra6 Rc2 Qe8 d8R Rh4 d7 Rb6 Qb2 Na6 Qc3 Bh6 Nf8 Nc5 Qd4 e6 Kf6 Nd3 Bb2 Nf2 a6+ Ka7 Kg6 e5+ Kh7 e4 Qg7 e3 Kh8 e2 Bc3 Kb8 a7+ Kb7 a8R e1R Ra6 Nh1 Ba4 Rb5 Rd6 Rb6 Ba1 Qe4 Re8 Qeg2 Re4 Qf3 Rf4 Re7 Rfd4 Qa3 Bb5 Qa8 d8N+ Kb8 Nc6+ Kb7 Qh7 Bg7+ Kg8 Bf6 Qg7 Nh6+ Kh8 Bh3 Na7 Be5 Be8 Bf4 Nc6 Be3 Re4 Bf2 Bf6 Bc5 Red4 Nf5+ Qh7 Rb5 Bg7 Ba7 Bh6 Rb6 Qg7
5N2/qB1N1pN1/2KPnb1n/1Q2PPr1/N3k3/1n1B1R1q/2nnb3/rr2R2R b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Be3 Ba6 cxd5 Qd7 d6 Bc8 d5 Qd8 Bd4 exd4 Kd2 Kd7 Kd3 a5 Kc4 c5 f4 h5 g4 a4 e4 d3 b4 d2 f5 h3 e5 a3 g5 h2 g6 h4 b6 a2 Kb5 c4 g7 c3 b7 c2 Nc3 c1N Qa4 d1N Nge2 h3 Ng3 Qe7 Bc4 Nh6 g8B Nb3 Nh5 Nf2 Ng7 Nc6 b8R Nd8 Rae1 a1N Bh7 Ne4 Bg6 Ne6 Bh5 Rg8 Bf3 Ned2 Qa5 Ra7 Na4 Ba6+ Kb6 Nc2 b5 Qe8 Qb4 Be7 Qc5 Bf6 Rb7+ Kd8 d7 Qe7 Kc6 Ra8 b6 Rb8 Ne8 Rg5 Qb5 Qa3 Ng7 Ke7 Rhg1 h1Q Ra7 h2 b7 Qg2 d8N h1R Be4 Qh3 d6+ Kf8 Bed5 Kg8 Rg3 Kh7 Rf3 Ra8 b8N Rf1 Re2 Rb1 Nd7 Qa1 Ree3 Qd4 Rc7 Qa7 Be4 Ng4 Re1 Kh6 Ne8 Kh5 Ng7+ Kh4 Bed5 Nh6 Rb7 Kg4 Rc7 Rb8 Rh1 Ra1 Re1 Nf4 Nde6 Rb7 Nef8 Ne6 Rc8 Rb8 Ng6 Rb7 Rh8 Rb8 Ngf8 Rb7 Rfe3 Kf4 Bh1 Rb8 Rf3+ Kg4 Qc5 Nc1 Bd3 Qg2 Kd5 Ng8 Rh6 Qf1 Rfe3 Kf4 Bhe4 Rb6 Rh1 Rbb1 Qc4 Qh3 Rf3+ Kg4 Qb4 Nh6 Qa5 Ncb3 Bf1 Be2 Qb5 Bd1 Bc4 Be2 Kc6 Qa8+ Kb6 Qb8+ Bb7 Qa8 Re3 Kf4 Kc6 Qa7 Rf3+ Ke4 Bd3+
3q1b2/N3P2r/B2n3R/3p1B1Q/bR2n2B/4PRbk/bnq1P2b/K1BN1r2 b - - 0 1 illegal: No proof kernel
2R1N3/4p1R1/K3P1Rn/1N2b3/P1r1Pq1r/3N2NQ/1q2b1nn/BBn1k1qn b - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 a5 b4 axb4 f4 Qd6 h4 Qe5 fxe5 gxh4 Ke2 Kd7 Kd3 h5 Kc4 f5 Kb5 c5 d4 b3 g4 b2 a4 f4 g5 h3 g6 c4 d6 Ke6 d7 f3 d8R h2 g7 h4 Ra3 c3 Bh6 c2 Bc1 h3 Qe1 f2 Re8 Nh6 g8N Na6 Nd2 b1Q+ Bb2 c1N Rf3 Nb4 Be2 f1N Qg3 Bg7 Rd3 Nc2 Qg2 Nce3 Qg3 Ng2 Nb3 b6 Bc3 Qb2 Nf6 Qd2 Bd1 Qf4 Bc2 Bb7 Bb1 Rc8 Re3 Rc4 Rc8 Bc6+ Ka6 b5 Qh4 b4 Ne2 Be8 Rg3 Bh5 Rg1 h1N Ba1 h2 Ne8 Bg4 Nc3 Be2 Nd2 b3 Nb5 b2 Rg6+ Bf6 Ba2 b1Q Qh3+ Ng4 Rg7 Qb2 Bb1 Rh4 Rg6 Nfg3 Rg7 Nf5 Nf1 Nfh6 Rg6 Nf2 Rg7 h1Q Ng3 Qh2 Rg6 Nh1 d5+ Kd7 d6 Ke6 Nf5 Qhg3 d7 Nh2 Rd1 Qgf2 Rf1 Qg1 d8N+ Kd7 Ne6 Bh8 Ra8 Kc6 Nc5+ Bf6 e6 Bc3 Nd3 Be5 Nf2 Kc5 Rc8+ Kb4 Ng3 Kb3 Re1 Kb4 Nd3+ Kb3 Nd4+ Kc3 Nb5+ Kd2 Rf1 Qg5 Rf5 Qf4 Rf7 Kd1 Rfg7 Kd2 Nf2 Ke1 Nd3+
1K1b2N1/3P1b1k/rN2qR2/1B2n1R1/1bN2RP1/p3Pqqr/3Q1q2/1NB3nq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 c5 Kf3 h5 Ke4 a5 Ke5 f5 b4 Kf7 d4 Kg6 g4 a4 b6 f3 b5 a3 b7 f2 d6 h3 d5 h4 d7 c4 d6 f4 b6 h2 Nf3 c3 Rg1 h1Q Bg2 f1Q Qa4 h3 Bd2 c2 Qc4 c1B Qb4 Qf2 Rf1 Qdh4 d8N h2 Nc6 Nf6 Ne7+ Kh7 Ng8 Nd5 e3 Be6 Qc3 Bb2 Bc1 Qhg3 Nfd2 Bf7 Nc4 Ra6 Bf3 Qhg2 Be2 h1Q Qd4 Nc3 Qd2 Qg2f3 Ra2 Bg6 Ke6 Nd7 b8N Ne5 b7 Qe4 Nd7 f3 b8R Ba1 Bd3 Ne2 Rb5 Ng1 Ndb6 Bb2 d7 Bb4 Rc5 Bf7+ Kd6 Qf5 Be2 Qe6+ Kc7 B2c3 Rd5 Ba5 Kb8 Bcb4 Nc8 Bd8 N8b6 Qe1 Rb2 f2 Rd4 Qd1 Rf4 Qc2 Rb3 Qcf5 Rd3 Qfe4 Rd5 Qef3 Rd1 f1Q Rd6 Qed5 Rdf6 Q1f2 Rf1 Qe6 R6f5 Kg6 Bd3 Rh3 Rh5+ Qe4 Rg5+ Kh7 Rf6 Qff5 Rf4 Qef3 Nb2 Qff2 Bb5 Qfe4 N2c4 Qeg2 Na5 Qg2f3 Nac4
qkn1R3/qqPbB1rr/3n4/Rp2P1P1/3n2NB/4B1KR/q1N2QB1/q1b5 b - - 0 1 illegal: No possible last move, all moves rejected
1n1r1n2/2Rn4/7N/R1N4R/1qrP1K1P/Nb1pBBR1/2P1rkqb/1Q2bn2 b - - 0 1 illegal: No proof kernel
1Q1K2b1/BB3q1n/1n3R1b/k1P1N1Rb/4P1B1/2qnp2P/2Br4/rbN2R1q b - - 0 1 illegal: No proof kernel
bNK2k2/3Q1n1B/n1n1b3/rp2B3/1PNq2qN/rRbn2P1/1P4N1/2BRq3 b - - 0 1 legal: proof: h4 d5 c4 e5 cxd5 g5 f4 gxh4 a3 exf4 Nf3 Qe7 Ng1 Qb4 axb4 Bh6 Rh2 Bg7 Rh1 Bf8 Kf2 f5 Kf3 h5 e4 c5 d4 b5 e5 a5 e6 h3 d6 h2 g3 a4 e7 h4 d5 h3 Bg2 a3 Qb3 c4 Qc2 a2 Qc3 Na6 Be3 Be6 Qc2 c3 Nd2 Nh6 Rf1 a1N Ne2 Nf7 Qd3 c2 Nc4 Nb3 Bc1 Bg7 Rf2 Rh7 Rd1 h1B Rff1 h2 Rf2 Kd7 e8N Bc3 Ng7 Na5 Qd4 Kd8 d7 Ke7 d8B+ Kf8 d6 Nc6 d7 Rh8 Bc7 Rg8 Bd2 c1N d8N Nd3 Be5 Rh8 Bc1 Rh6 Ng1 Ra7 Nh3 Rf6 Ke2 f3+ Ke3 f4+ Ke4 Rh6 Rfd2 f2 Qd7 f1Q Nf5 f3 Nh4 f2 Nf4 Qg1 Bf3 f1Q Nfg2 Qb6 Bh5 Qff2 Bg6 Qe1+ Re2 Qc5 Bh7 Rf6 Re3 Rf3 Bb8 Qh5 Be5 Qg4+ Nf4 Ne7 Nc6 Qf2 Nb8 Nc6 Rg1 Bg2 Rge1 h1Q Rd1 Bf5+ Kd5 Qhe1 Qc7 Bc8 Qd7 Bh1 Nfg2 Ra8 Nf5 Qfg1 Ke6 Ra7 Re2 Q1d4 Re3 Bd2 Re2 Nf2 Nf4 Ra3 Re3 Na5 Rb3 Ba8 Ng2 Nd3 Nf4 Qg7 Ng2 Bc3 Nfh4 Qg8 Bg5 Nc6 Bc1 Qf4 Kd5 Nac5 Qf5 Qgg4 Qe6 R7a5 Qf5 Na6 Qe6 Nh8 Kd6 Qfe3 Qd5 Bf5 Qe6 Nf7+ Kd7 Qef4 Kc8 Qd4 Qd7 Be6 Bd2 R5a4 Be3 Ra5 Bc1
1qN1r2Q/2rBNbbR/Kn2nN1P/1rBR2P1/6p1/5k2/3RPbb1/1n3Nq1 b - - 0 1 illegal: Other
2nRBbq1/1B1qQq1r/Nb1N2np/1RPr4/2b3b1/PPN1K2k/2B3r1/6B1 b - - 0 1 illegal: No proof kernel
1K1n4/NN3r1q/2R1b1PP/1N4R1/1b2p2B/n1Rqr2r/BQnR1P1r/6qk b - - 0 1 illegal: No proof kernel
3K2B1/6kn/Q1bN2PP/5P2/R1bbnR2/qpBRqr2/2nr3r/3BBN1b b - - 0 1 illegal: No possible last move, all moves rejected
3Rkr2/2R4n/2P2bb1/q1qBr1RQ/q1n4P/1Pp3rn/1RNN1rNB/2K5 b - - 0 1 illegal: No proof kernel
1nnqR1Nr/R5b1/1P4R1/2N4B/K2QBP1r/3rp2q/2P1BBk1/1bn3bn b - - 0 1 illegal: No possible last move
1qN2R1r/8/BPn1q2p/3PN3/Bq1b1Qb1/1R2r2r/1N2bP1B/1qNnk1K1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 g4 Kf7 d4 Kf6 b4 a5 b6 e5 b5 c5 g5+ Kf5 d6 c4 d7 h3 b7 e3 d5 Kf4 g6 a4 b6 h6 g7 e4 Bd3 h2 Kf1 a3 Qd2 c3 Ra2 c2 Qb4 Ne7 g8B Bg7 Qc3 Bd4 Bc4 Nbc6 b8N Nf5 Ne2+ Kf3 Bb2 c1R+ Qe1 Rc3 Be6 Rd3 Ra1 a2 Qd2 Raa3 Nc1 Rdb3 Rg1 h1B Rg8 e2+ Kg1 e3 Rf8 e1Q+ Bf1 e2 Nc3 Bg2 Rb1 a1Q Nd1 Re3 Bc3 Qe8 Rb3 Qb1 d8N Bh3 Nf7 Bg4 Ba1 Ba6 Nd7 Qb8 Nd6 Bc4 Nc8 Bd3 Qb2 Qb4 Qd2 e1Q Nb2 Be2 Bf7 Rc3 Qg5 Ne3 Qh4 Nd1 Ne5+ Ke4 Be8 Rh3 Rbf3 Re3 Bd7 Ne7 Ba4 Nc6 Qg3 Q4d6 Qh4 Qeb4 Qg5 Qe6 Rg3 Bef3 Ba6 Be2 Qf6 Bc5 Qf3+ Kd4 Qf5 Kc3 Qf4 Kd2 Rf3 Ke1 Rg3 Re4 Rb3 Ree3 Nbc4 Bh5 Bd4 Bhg4 Nb2 Be7 Bc5 Bf6 Be7 Bg7 Bh4 Bf6 Bg3 Bg7 Bh2 Bf6 Nd7 Bd4 Ne5
5BB1/NK1b2n1/1PRR1pb1/2P2qk1/r1NR2n1/rP6/RrB2n1b/q1r3Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kd2 Ke7 Kd3 Kf6 Kc4 d5+ Kb3 a5 Ka4 g5 e4 f3 h4 g4 c4 f2 c5 d3 b3 d2 h6 d4 h5 g3 b6 g2 Kb5 d3 h7 a4 h6 a3 e5+ Kg5 e6 a2 e7 f6 e8B Nd7 Kc6 Bd6 Rh3 Bh2 Nc3 Ra4 Nb5 Nf8 Rh4 Bd7+ Kb7 Ne6 Bg6 Ng7 Rd4 Qf8 Be2 f1Q Na7 Qf5 Bf3 Qe7 Bd5 Qe3 Qe1 d1N Be6 d2 Rd6 Qf1 Bc2 Qd4 Rc6 Qf5 Nf3+ Kg4 Qg1 Nf2 Bc4 d1B Nd2 Kg5 Bd5 Bh5 Nc4+ Kh4 Bf4 Bg6 Bd6 Kg5 Bf8 Qde5 Rd1 a1R Rd4 R1a3 Be6 Qe1 Rdd6 Qa1 Bd5 Ne7 Bf7 Rg8 h8R Nd5 h7 Ne3 Rd4 Neg4 Be6 Nh5 Bd5 Rg7 Rg8 Re7 h8R Ng7 Rh3 Re6 Rhd3 Re2 Rh8 Rd2 Bg8 Re2 Rdd6 Rd2 R3d4 Re2 Qh1 g1R Rh7 Rb1 Qg1 Ree1 Rh3 Rb2 Rhd3 Rd1 Rd2 Rc1 Bd3 Rbb1 Ra2 Rb2 Bc2
3q3N/1bBBNr1P/4kp2/nPbr2n1/B1P2Q2/rbR2Nq1/2R4q/2B2Kb1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 h4 Ke7 c4 a5 b4 d5 e4 g5 h6 d3 e5 g4 b6 f3 e6 g3 h5 f6 h7 a4 h6 a3 b7 d4 b5 a2 Rh3 f2+ Kd2 g2 Qe1 Nc6 b8B Bb7 Re3 Na5 Nh3 g1B Kd1 d2 Ke2 d1R Ng5 Ra6 Bh3 d3+ Kf1 d2 Nc3 Ra8 Rb1 a1Q Bf5 Qa3 Bc2 Qad6 Rb2 Qh2 Bc7 Qg3 Bb6 Kd6 e7 Ra7 Nge4+ Ke6 e8B Bc5 Ba4 Ra6 Rc2 Ra7 Ba3 Ra1 Rf3 d1B Bc1 Ra3 Bc7 Qh2 Qd2 Qg3 Ra2 Bb3 Nd5 Qh2 Qg5 Qg3 Rc2 Qh2 Rfc3 Qg3 Ke2 f1Q+ Kd2 Qff3 Qf4 Qh1 Ke2 Qhh2+ Kf1 Bc8 Bb8 Rf7 Nd2 Bb7 Be5 Ne7 Bc7 Nf5 Bc6 Nd6 Nf3 Ne4 Ne7 Ng5 Be8 Rg8 h8N Rg6 h7 Rh6 Bc6 Rh4 Qd2 Rd4 Qf4 Rd5 Bd7+
6kN/Bb3qPb/4qR1K/r1bQP1RN/1NnrB2N/2qPB3/4pnb1/7r b - - 0 1 illegal: No proof kernel
nN1k1bb1/K3B1p1/n3q1P1/r4Rq1/2q3B1/P1NP3R/R2Bq1nQ/1B3rr1 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 h5 Qc2 d5 cxd5 e5 Qf5 exf4 Qxh5 Qg5 Qh7 Qd8 Kf2 f5 e4 b5 g4 c5 h4 c4 a3 b3 h5 b2 d3 b4 h6 f3 Ke3 f4+ Kd4 b3 e5 f2 d6 c3 Kc5 f3 g5 c2 g6 Nf6 e6 Nd5 e7 Nb6 Ne2 Be6 Rh5 Bg8 Bh3 f1N Bd2 c1Q+ Nbc3 b1R Bg4 b2 Rf5 f2 Ra2 Ne3 Nd4 f1Q Nc6 Na6+ Kb5 Ng2 Nb8 Qe2 Kc6 Bf7 Kb7 Rg8 Qh8 Ra1 h7 b1Q Bh5 Qe6 Bd1 Qb4 Bc2 Qcb2 Bb1 Qbc4 Nd7 Rc8 Nb8 Rc5 Ka7 Qc2 Nc6 Kd7 e8B+ Kc8 Nb8 Qg5 Bc6 Ra5 d7+ Kd8 Bf3 Na8 Bg4 Qd1 Rf2 Qde2 Rf5 Kc7 d8B+ Kc8 Bc2 Rg1 Be7 Kc7 Bb4 Kd8 Bb1 Be7 Bd6 Rf8 Bc5 Bg8 Bb4 Rf6 Bd6 Bf8 Be7+ Kc7 Rb5 Rff1 Rf5 Bf7 Qg8 Qcd5 h8R Qc4 Qh7 Bg8 Qh1 Kc8 Rh3 Kc7 Qh2+ Kc8 Bb4 Kd8 Be7+
5Nbq/R2B1P1Q/3r4/B2q1p1N/1n1nkr2/2b1P1Kb/BqPn2B1/n3R1N1 b - - 0 1 illegal: No proof kernel
4q1n1/BBQ2PRK/qP6/4P3/b1k1rnR1/1b1b4/N1Nrpb2/n1NBB1r1 b - - 0 1 illegal: No proof kernel
2BqBrnQ/5PB1/Pr1n3r/4b2P/BRrN1pN1/2k4K/2bq1R2/b5qN b - - 0 1 illegal: No proof kernel
2rBNK2/4PpQb/bbBq2P1/PRn3b1/5qk1/1N2RB2/3r1r2/2Nn2Bn b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 b5 e4 b3 a4 b4 g4 b2 d4 b3 g6 h4 d6 c4 g7 c3 a5 f3 g5 f2 e5 c2 e6+ Ke8 d5 h3 d7+ Ke7 Qg4 h2 Be2 f1R+ Bf3 Na6 Be3 c1B Ra3 Rh5 Ne2 Nf6 g8B Rf2 Nd2 Ne4 Bh7 b1Q Qg3 b2 Nb3 Qb6 d8N Nac5 Nb7 Qd6 Qg1 Bd2 Nec1 Qc2 Qg3 b1B Qe5 Qc3 Qg7 Qb4 Re1 h1N Bd4 Bc3 Re3 Bd2 Ra1 Bd3 Rb1 Rhh2 Bg6 Ba6 Bh7 Nc3 Bg6 Qg3 Nd6 Nd1 Ne8 Qd6 Bh7 Bd7 Rb2 Rc8 Bg6 Kd8 Kf6 Bdb5 Bc2 Bd3 Bb1 Bh7 g6 Qf4+ Bf5 Qb6 d6 Qc7 d7 Qcd6 Qh6 Be7+ Kg7 Bg5 B5e4 Ke7 Bc6 Be1 Na1 Rd2 Rb5 Bf2 Nab3 Bg1 Qh4 Rhf2 Qh6 Qde5+ Nf6 Kd6 e7 Ke6 d8B Kf5 Kf8 Qd5 Ne8 Qdd6 Bfe4+ Kg4 Qg7 Rb8 Bg2 Rc8 Bgf3+ Kf5 Re2 Rh2 Bfe4+ Kg4 Bc3 Nb7 Bb2 Ba7 Bd4 Bb6 Bg1 Rf2 Re3 Nc5 Bf3+
2Nn4/r1bPn2n/q2rq2b/R5B1/1rp5/1NR1PKPb/1kQ2Nr1/1N1R3B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Ke7 d4 Kd6 b4 f5 b6 c5 e3 a5 b5 h5 g3 a4 b7 a3 b6 h3 Nf3 h2 Bh3 h4 Ke2 a2 Qa4 Qf6 Rd1 h1R Qb4 Qe6 Nh2 f3+ Kf2 f4 Qa3 Bh6 Rf1 Rg1 Ng4 Ra7 Nh2 Nc6 b8R Nge7 b7 Rd8 Bf5 h3 Ng4 h2 Be4 h1R Qc3 Rh4 Ba3 Bd7 Rd1 Rg2+ Ke1 f2+ Ke2 f1N+ Nf2 Nh2 Rc8 Ng4 b8N Nf6 Kf3 Rg4 Na6 Nh7 Qc2 Rh4 Rb8 Bc8 Rb3 Rdd7 Rc3 Nd8 Nb8 Rg4 Nc6 Rh4 Na5 Rg4 Nb3 Rh4 N1d2 Rg4 Rab1 a1B Bb4 Bb2 Ra1 Rh4 Nb1 Rg4 Rcd3 Bc3 Ba3 Ba5 Rc3 Bc7 Bb2 Ba6 Ra5 Bf1 Bc1 Rg1 Bb2 Bh3 Ke2 Rh4 Bh1 Rg2 Kf3 Qe4+ Ke2 Qf5 Rc4 Qe6 Bc3 Rg1 Nd3 f3+ Kf2 Nf7 Bb2 Rd8 Bc3 Kd7 d6 Kc6 d5+ Kb6 Bf6 Rg2+ Kf1 f2 Ke2 Rg4 Kf3 f1Q+ Nf2 Rd4 Rc3 Qa6 Bg5 c4 Ra4 Kb5 Ra5+ Kb4 d7 Nc6 d6 Rb8 d8N Rbb7 d7 Rd6 Rc5 Rb6 N1d2 Ka3 Rf5 Rb4 Nb7 Ne7 Re5 Rdb6 Nd6 Nd8 Nc8 Rd6 Ra5+ Ra4 Qf5 Kb2 Nb1 Rb4 Qc2#
3N1n1r/3PqbqR/1kN4b/p1N1P1P1/2q1B1nr/6Bb/b1B2Q1n/R1BK4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 g4 Kd7 e4 c5 d4 Kc7 b4 a5 g6 f5 g7 h5 e5 h4 g5 c3 d5 f3 d6+ Kb6 Qd3 f2+ Ke2 c2 Ba3 c1Q Nd2 f4 Ngf3 h3 Qb3 c4 Qb2 h2 Bg2 f1N Nb3 c3 Nfd4 c2 Nc6 Nd7 Nc5 Qe7 Nd8 Rh4 Be4 Nh6 g8B Ng4 Bb3 Bh6 Qd4 Ba6 Qf2 Nf8 d7 Qb1 Bb2 c1Q Bbc2 Bb7 Ba3 Bd5 Bb2 Qa2 Ba3 Qcb1 Bc1 f3+ Kd1 Bf7 Bcd3 Ka7 Bc2 Qc4 b6+ Kb8 b7 Ka7 b8B+ Kb6 Rg1 h1B b5 Nfh2 Bd6 Bg2 Rh1 Qba2 Bf4 Bh3 Bg3 Rc8 Qd2 f2 Qd4 f1B Qf2 Qf6 Be7 Qg7 Bd6 Ka7 Be7 Qa3 b6+ Kb8 b7 Ka7 b8N Kb6 Nbc6 Bd3 Bb3 Bb1 Bbc2 Ba2 Nce6+ Qe3 Ba3 Qec5 Bc1 Rb8 Qe1 Qe7 Nc5 Rc8 Qf2 Nh7 Ndb7 Rh8 Nbd8 Nf8 Bb1 Nf3 Qc2 Rh5 Ncb7 Bg2 Rh4 Bh3 Qg2 Nfh2 Bbd3 Qh7 Nc5 Bg7 Qf3 Qg6 Bc2 R5h7 Rh6 Qgf6 Rg6 Rh4 Qf2 Bh6 Rg7 Qg6 Rh7 Qg8 Qf5 Qg7 Qf2
qb4Rk/R2PBPN1/Rnr3r1/r1RB3P/1b1nq2b/5p2/2N4Q/3bnB1K b - - 0 1 illegal: No possible last move, all moves rejected
NK1RN1B1/B2p1qP1/1RbP1q2/2n1bbP1/5Q2/2rr3N/N2r4/nn1kB2n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 a4 exf4 axb5 c5 b4 cxb4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 d4 h5 g4 f5+ Kd3 Kd5 c3 f3 g6 b3 e3 f4 b6 b2 g5 h4 b7 f2 g7 h3 Ra3 a4 Qg4 h2 Rb3 a3 Bd2 a2 Rb6 a1N Be1 f3 Qf4 Ra3 Nh3 Na6 b8B Qf6 Ba7 Bd6 Bg2 f1R e4+ Ke6 Kc4 f2 Kb5 Bb7 c4 Nc5 e5 Rd3 Bf3 Ne7 Nc3 b1B Na2 Rc8 Be4 Bd5 Bh7 Bc6+ Ka5 Nd5 Bg8+ Ke7 e6 Nc3 d5 Be5 Rb7 Kd6 Kb6 Bc2 e7 Nb1 Rb8 Rc7 Rd8 Qf7 Rg1 h1N Rg3 Rd2 Rb3 Bf5 Rb2 Rg1 Rb3 f1Q e8N+ Ke7 d6+ Ke6 Rb4 Rg3 Rb2 Rgd3 Rb5 Ne4 c5 Kd5 Ka6 Kc4 Rb6 Bd5 c6 Qf2 Nb4 Kb3 Na2+ Kc2 Qf3 Rb7 c7 Bc6 Qf4 Kd1 c8N Rb8 Rb3 Rb7 Nb6 Rc7 Na8 Nc5+ Kb6 Qh4 Rb4 Qh6 Rb2 Rc8 Rb3 Qhf6 Rb4 Rb8+ Kc7 Rb5 Rb2 Rbb3 Kc8 Ra3 Kb8 Rac3 Rb6
1q1bR3/n1P2rqn/BNk5/B3rbPp/1K1nnbN1/1N6/1QB1N2P/qR6 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 d4 Kd7 Kd2 f5 Kc3 e5 g4 a5 b6 h5 b7 f3 g5 a4 d5 a3 d6 a2 Qe1 e3 Ba6 f2 Qe2 f1Q Nh3 f4 Qg4+ Kc6 d7 f3 Nf4 e2 Qg1 e1N Kb3 e4 c4 f2 Bd2 e3 Qg2+ Nf3 Ba5 e2 Kb4 e1B+ Nd2 Rh7 Ne2 Bd6 Rb1 a1Q Rg1 Qe7 Rh1 Bf4 d8N+ Kd7 Nf7 Kc6 Rg1 Nf6 Nh6 Bf5 Ng4 Rf7 Rh1 Qe8 Rg1 Nh7 Rh1 Kd7 c6+ Kd6 c7 Qg7 c8B Kc6 c5 Ra7 Qg3 Nd4 Qb3 Qg1 Qc3 f1N Nb3 Nd2 Qb2 Bf2 Bd3 Ne4 Bc2 B2e3 Re1 Bc7 Rb1 Bef4 Re1 Bd8 Rb1 Kd5 c6 Qd1 c7 Kc6 Rg1 Ra6 Re1 Rb6+ Ka3 Rb5 Ka4 Re5 Ka3 Nd7 Kb4 Nb6 b8N+ Kd6 Na6 Kc6 Nac5 Qef8 Ba6 Nc8 Rg1 Na7 Re1 Qe8 Nd7 Qc1 Qa3 Qb2 Nb6 Qa1 Qc1 Bf6 Qb2 Qb8 Red1 Bd8 Rd2 Ne6 Rd7 Nd4 Re7 Rd5 Re5 Rc5 Re7 Re5 Re8
2K1R2Q/2P1bPBq/1RB2k1r/2b5/1bN1qNpq/2n1r1P1/3RN2R/1q4nr b - - 0 1 illegal: No possible last move, all moves rejected
2NqN1n1/RP1QN2B/1BPqbb1n/N3rk2/2p5/Rb2Pn1K/R1b5/3qr3 b - - 0 1 illegal: No proof kernel
1nrB4/P1nQN3/Bqb3R1/1bbP1Bp1/2nNR2R/6r1/P3R2r/1Kb1qk2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 c4 d5 cxd5 exf4 d4 Kd7 Kd2 Kd6 Kc2 b5 e4 g5 h4 f5 a6 c5 h5 g3 h6 f3 h7 f2 a7 g2 Nc3 b4 Kb2 b3 Nce2 f4 Rh4 c4 Kb1 b2 Qd2 f3 Ng3 c3 Be2 f1N Ba6 f2 Nf3 g1R Rf4 Ne3 e5+ Kd7 d6 Kc6 d7 Kd5 e6 f1B e7 Nc4 e8B Bc5 Rf6 Qb6 d8R+ Bd7 Rg6 Nf6 Nf5 Ke4 Ne7 Bc6 Bd7 Nd5 Re8 Nc7 Qd1 Be2 Bd2 Kd3 d5 Rg2 Nd4 Rg3 Qa4 Bf1 Be1 Ke3 Bd2+ Kf2 Bf5 Be2 Bf4 Kf1 Qb5 Ne3 Qa4 Beb5 Be5 Nc4 Bf6 Rg8 h8R Rg7 Qc2 Rh7 Qa4 Rh2 Rh3 Nd7 Rhh6 Rc8 Rh4 Nb8 Re4 Bb7 Rh8 B7c6 Rhh4 Rf2 Ng8 Rh2 Bd8 Ba8 Ne7 Bd7 Qc6 Be8 Qe6 Bb5 Qd7 Kg2 Kc2 Bac6 Rc1 b1Q+ Kd1 Qa1 Rb1 c2+ Kc1 Qc3 Rb3 Kf1 Ra3 Qb4 Rd3 Qe1+ Rd1 Nd6 Kb2 c1B+ Kb1 Nc4 Rd2 Bb4 Rb2 Bc5 Rbe2
1N2b1b1/P1r2qPb/4BRq1/2Nk4/Rrpn1Kn1/2bPr2Q/1R6/B1BB2n1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 g4 h5 a4 c5 e4 b5 a5 f5 a6 h4 a7 c4 g6 b3 g7 b4 g5 b2 g6 b3 Rh2 h3 Bd3 Nh6 g8R Ng4 g7 Qb6 Qe2 Be6 Qf1 Nc6 Nc3 b1B Na2 b2 Qg2 Rc8 Bc2 Rc7 e5+ Kc5 d6 Kd5 d7 Bb4 d8B Bc3 Re8 Bg8 e6 Qa6 Rh1 h2 Ne2 Rh3+ Ng3 Qb6 Rg1 h1B Bd1 Bc2 e7 b1R Rf8 Rb4 e8B Ba4 d3 Bb5 Ke2+ f3+ Kf1 f4 Ne4 f2 Ke2 f1N Nc5+ Rf3 Bd7 Nd2 Qh3 Ba4 Rg2 Nd4+ Ke1 Bh7 Bf6 Re3+ Re2 f3 Be6+ Kd6 Rf7 Be8 Be5+ Kc6 Rf6 Qa6 Bb3 f2+ Kd1 N2f3 Rb2 Rb5 Ba4 Ng1 Nb4+ Kb6 Bc2 Bd5 Nc6 Rb4 Nb8 Kb5 Ra4 Qc6 Bd7 Bdg8 Bf5 Qe4 Be6 Qg6 Bb3 Nde2 Bd4 f1Q+ Kc2 Qff5 Kd1 Qf7 Kc2 Q5g6 Be5 Bd4 Kd2 Kb6 Bd1 Kb5 Ke1 Bc3+ Kf1 Nd4 Kg2 Ndf3 Kg3 Nd4+ Kf4 Kb6 Nba6 Kc6 Nb8+ Kb5 Qf1 Be1 Nc6 Ndf3 Qh3 Bd2 Bc3 Nd4 Rc2 Kb6 B3b2 Bc3 Ba1 Kb5 Nb8 Kb6 Nbd7+ Kc6 Re2 Kd6 Rb2 Kc6 Nb8+ Kd6 Bd7+ Kd5 Be6+
qN1N4/PPb5/Bq2PqbR/4k1rb/K2n1r2/N4b1p/Q2RN2R/B5nr b - - 0 1 illegal: No proof kernel
1rNBNrRq/p4bP1/P1Q1q3/R6B/1nB4P/4qb1b/2Bn1N1K/2kbn3 b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 h5 f4 g5 Nc3 Be7 Nb1 hxg4 Bh3 g3 Bg2 g4 Bf1 Bg5 fxg5 Rh6 Qd3 Rh4 Qd1 Rh8 c4 Ke7 h4 Ke6 e4 Ke5 a4 d5 a5 b5 c6 f5 a6 f4 g6 b4 c7 d3 g7 Kd4 e5 f3 e6 g2 Kf2 d2 Kg3 Ke3 c5 b3 e7 b2 e8B f2 c6 d4 Ra5 d3 Bf7 Be6 c8B Nf6 c7 Nc6 Bd7 Ne4+ Kh2 Rf8 c8N Nb4 Ra1 Rb8 Bg6 Bf7 Ra4 g3+ Kh3 Qb6 Bg4 Qe6 Be2 f1B Na3 b1Q Qc2 Qba2 Bb2 d1B Qc6 d2 Bc4 Bf3 Bf6 d1B Ra5 Kd2 Nb5 Kc1 Bd8 Nd2 Nc7 Qc2 Bh5 Qh7 Ne8 Qhh6 Rh2 Qh8 Bf5 B3e2 Nf3 g1Q+ Rg2 Qc5 Ng5 Qce3 Ne4 Bf3 Nf2 Bd3 Rg1 g2 Re1 g1N+ Kh2 Bf1 Bc2 Bh3 Nf6 Bfg2 Ne8 Ngf3+ Kg3 Bh1 Re2 Ne1+ Kh2 Q3h6 Ree5 Qe3 Rf5 Be4 Rf6 Bef3 Rh6 Qg8 Rh8 Qh7 Rg8 Qhh6 Bb5 Qh8 Bc4
k4K2/5QBr/brN1rR1N/1nr1n3/p1P2bN1/r4B2/R2PNP2/1rqb1B2 b - - 0 1 illegal: No proof kernel
1B4R1/4bPqn/N3K1p1/NP4b1/1rP1R1rN/3kbbQr/2B5/N2bB1bn b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 b4 d5+ Kc5 a5 c4 a4 h4 g3 f6 g6 f7 a3 b6 e5+ Kb5 d3 f5 a2 b7 d2 h5 g2 f6 d4 h6 d3 h7 Bg4 Qb3 d1B Bg5 d2 Nf3 g1B Bf4 Qc7 Nh4 Bgf3 Na3 Ra4 Nc2 Na6 b8N Nc5 Na6 Be7 f8N Nd3 Nd7 Nf2 Ndb8 Qa7 Rh3 Nh1 Kc6 Be3 b5 Rb4 Rb1 a1B f7 Nf6 Qa3 Bad4 Na1 Bg1 Bg3 Bde3 Be1 Qd4 Qb3 Qb2 Bd3+ Kd4+ Kc7 e4 Bc2 Bg5 Qa3 e3 Rh2 e2 Qd3+ Ke5 Nc6+ Kf4 Qd6+ Ke3 Na5 Qc3 Qg3 Kd4 Rh3 B5e3 Bf2 e1B Rb3 Qb2 Rd3+ Ke4 Kc6 Bg5 Re3+ Kd4+ Re4+ Kc3 Be3 Bef2 Bf4 Bfc5 Bb8 Bce3 Ba4 Kd3 Bb3 Nd5 Kd7 Qg7 Ke6 Nf6 Ba4 Rc8 h8B Nh7 Bb3 Rc5 Ba4 Rf5 Rh2 Rf4 Rh3 Rg4 Bb3 Qh6 Bc3 Qg7 Rh2 Bde2 Ba4 d1R Be1 Rc1 Bb3 Bd1 Ra2 Rc2 Ra3 Rh2 Bc2+ Ke2 Rd3 Rh3 Rd8 Rb1 Bf2 Rb4 Rg8 Kd2 Be1+ Ke2 Bb3 Kd3 Bc2+
nK1R4/3bP2n/rB1nbbn1/1p1P1N1k/1qr1R2n/nP4B1/1B2BN2/6QN b - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 Qc2 a3 Qb2 axb2 Kf2 b5 Kf3 c5 Ke4 f5+ Ke5 Kf7 a4 g5 h4 g4 e4 f3 d4 f2 d6 f4 d7 g3 h6 Kg6 a5 g2 d5 c4 h5+ Kg5 h7 c3 h6 c2 a6 Qa5 d8B+ Be7 a7 Nf6 Ne2 g1N Nd2 b1N Bb2 c1N Rh4 f3 Ng3 Nce2 Nh1 Nf4 Be2 f1B Bb6 f2 Ra2 Rg8 h8B Bfh3 h7 f1N Ra4 Bd8 Kd6 Bhe6 e5 Na3 Re4 Nf3 Rh6 Bed7 e6 Ne3 Rh3 Be7+ Kc7 Nh4 Be5 Nfg6 Bg3 Nef5 Rh2 Nh5 Bb2 Nd6 h8N Bf6 e7 Qb4 Rf2 Be6 Rg2 Nd7 Nf7+ Kf5 Nh6+ Kg5 Nf5 Re8 Bc5 Nb6 Bg1 Bcd7 Rf2 Rab8 a8Q Rbd8 Qc8 Na8+ Kb8 Rh8 Rh2 Rh6 Bb6 Rg8 Rg2 Rg7 Qc1 Rg8+ Ka7 Rc8 Qg1 Rc4 Kb8 Nf8 B6d4 Nh7 Bb6 Nf4 Rf2 Nfg6 Rff4 Ne5 Rg4+ Kh5 Rg8+ Nhf3 Rd8 Ng6 Rg4 Nfh4 Ne4 Ng2 Nef2 N2h4 Rd4+ Nf3 Qe1 Ngf8 Ng4 Nc8 Kb7 Bg7 Nh2 Bf7 Ba5 Ra6 Ng4 Nd6+ Kb8 Ng6 Bb6 Bfe6 Re4 Bf6 Qg1 Nfh4 Ngf2+
8/p3knP1/KR1NPqQP/b2b1n2/NBR1b3/r1b3B1/4nb2/N1rBbB2 b - - 0 1 illegal: No proof kernel
r6n/rR5R/2n3B1/4krNP/bbRN2b1/1rpKQ1BP/q1P1R3/1r3B1b b - - 0 1 illegal: No possible last move
1r2N2K/2Q5/2R3r1/b1PnN2N/bPn2BRb/kn5n/3p1P2/n1RBqNb1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kd3 d5 g4 Kd7 c4 Kd6 f6 Kc5 g5 Kb4 g6 e5 b6 a5 g7 e4+ Kc2 h3 b3 e3 Kd3 a4 c5 h4 f7 h2 b7 h3 Qf3 e2 Bb2 e1B Ra3 Qa5 Qg2 Bd6 f8N Ne7 g8R Nd7 b8N Rh6 Rg7 Nb6 Be2 Rg6 Ra1 a3 Rh7 a2 Nbd7 Nc4 Na3 Rb8 Ne5 Bd7 Bc1 Ba4 Rb1 a1B Kc2 d3+ Kd1 d2 Kc2 d1N Kd3 d4 Ke4 d3 Kf4 Nde3 Qc6 Nc2 Qc7 Nd5+ Kf5 Bb2 Rf7 Na1 Ngf3 Bec3 Re1 h1N Ne6 h2 Nb5 Be7 Bf4 Bh4 Nd6 Ka3 Rg1 d2 Rg5 Ng3+ Kg4 h1N Ng7 Qb6 Bd1 Ne2 Kh5 Ba5 b4 Nc1 Nh2 Ncb3 Nde8 Qe6 Rc1 Qe7 Rf6 Ng3+ Kg4 Ne4 Kh5 Bd4 Rg4 Ng5 Rc6 Nh3 Nf1 Bb2 Nf7 Qe1 Ne5 Rg5+ Kh6 Rg6+ Kh7 Bd4 Nd3 Be5 Nh5 Bd6 Be3 Bh2 Ne5 Bg1 Kh8 Rd8 Bg5 Rb8 Bf4
n2r1N2/b3n1R1/b7/PP2k1n1/b1N2rn1/1b1P2Kp/1N1n2RQ/1RqR2BB b - - 0 1 illegal: No proof kernel
2q1rrk1/1QN4N/1Nr1b2p/2b5/P4bP1/2RP1rBK/3rbBB1/n1B2R1n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 f4 Kf7 Kf2 b5 g4 c5 Kg2 e5 a4 c4 f6 b3 d3 h6 d6 c3 d7 c2 f5 b4 Ra2 h3+ Kh2 e4 Na3 b2 Ra1 b1R Kg3 h2 Bg5 c1R Kh4 e3 Nc4 b3 Nh3 b2 Qd2 e2 Bf4 e1B+ Bg3 Ne7 Nd6+ Kg8 Qe3 Na6 Nf4 Nb4 Ra3 Rc6 Ne6 Rd1 Rc3 b1R Qf3 Nc2 Nc4 Rd2 Kh3 Na1 Nb6 Qe8 Rg1 h1B d8B Rbb2 Qe4 Bf3 Bg2 Be2 Nc7 Be6 Rf1 Qd7 Qd5 Qc8 Bf2 Rb4 Bg3 Rf4 f7+ Kh7 f6 Rf3 Qb5 Nf5 Qb3 Be7 f8B Bc5 f7 Bef2 Bg7 Re8 f8N+ Kg8 Bg5 Bfe3 Bd4 Bf4 Nh7 Ne3 Qb4 Nd1 Qb5 Rb8 Qa6 Ra8 Qb7 Nf2+ Kh4 Nh1 Kh3 Qd7 Be3 Rad8 Bf2 Qc8 Bf6 Rf8 B6d4 Rde8 Bde3 Ra2 Bc1 Rc2 Rb3 Rd2 Rc3
4b2r/3NB3/1RPb2qb/bn1p3n/4k1QN/RK4Pr/1P2B3/RnNRn1b1 b - - 0 1 illegal: No proof kernel
n1nr1kNB/1R1BbPnr/1N1r4/4Rp2/n3qP2/2b1P3/Rn3K2/BrR4Q b - - 0 1 illegal: No proof kernel
Q2R2r1/b4P2/2P1rNbR/r6q/2B1p1Pn/1BkN1BbK/r1nR4/3bBr2 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 hxg5 c5 dxc5 axb4 f4 Kf7 Kf2 Ke6 Kg3 d5 a4 b5 c4 h5 a5 h4+ Kh2 h3 g4 e3 f5+ Ke5 g6 d4 g7 e2 c6 e1B f6 d3 c7 Kd4 c5 e5 a6 b3 a7 b2 f7 d2 c6 b4 Bb5 b3 Ra3 e4 Qc2 d1B Bd3 Qd5 Bg5 Bc5 Nc3 b1R Bd2 b2 Ra2 Qh5 Nd5 Ne7 g8R Ng6 Nf6 Na6 Bc4 Nh4 Qa4 Bf5 c8B Ra1 B8e6 b1R Re8 Bf2 Be1 Nb4 Rd2+ Kc3 Nf3 Ra2 Red8 Bg6 Ne5 Rg8 Nd3 Nc2 Bb3 Rba1 Bec4 Rb8 a8B Ba7 Qa6 Rb5 Qa3 Re5 Bb7 Re6 Qf8 Ra5 Bba6 R1a2 Qe8 Bfb6 Kg3 h2 Kh3 Bf2 Qf8 Bg3 Qa3 Rae5 Bab5 Bg1 Qa8 Ba7 Nb2 Rg5 Be2 Rf5 B5c4 Rfa5 Nd3 Nb4 Rg1 Nc2 Rg2 h1R+ Rh2 Rf1 Bf3 Nf5+ Kg2 Qh6 Rh5 Nh4+ Kh3 Qg5 Rh7 Qh5 Rh6
b1n3RB/nPQ1p1bB/2NnR2k/q2bRr2/3P2r1/B2n4/N1PBK1n1/b7 b - - 0 1 illegal: No possible last move
3Q1nqN/P2R3b/2B2qR1/1N6/1r2Rb1R/kPnPBN1K/1n1n3p/n3r2n b - - 0 1 illegal: No proof kernel
5qN1/P1Rr1Qb1/KN1qr1n1/3bN1B1/1rB4p/PnB2kPr/8/2rNRr2 b - - 0 1 illegal: No possible last move
5BRN/pRbr2r1/1n3Q2/rbk1q2n/8/2b3PP/Nr1P2bN/KR1rNB2 b - - 0 1 illegal: No possible last move, all moves rejected
2K4R/6n1/NQB2R1q/Brn4p/R1Rbn1PN/2rb1P2/4nP2/1r1bkrN1 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 gxh4 axb5 c5 Nh3 cxd4 Ng1 f5 Nf3 f4 Ng1 f3 exf3 Bb7 Nd2 Ba6 Nb1 Bc8 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 h5 g4 a5 b4 h3 c4 e5+ Kg3 d3 b6 h2 c5 d2 b5 a4 c6 e4 Kf4 e3 b7 e2 b6 e1R c7 a3 Bd3 d4 Nc3 a2 Rb1 a1R Bh7 d3 Bb2 Na6 b8N Nc5 b7 Bf5 c8R R8a3 Qa4 d1N Bg6 d2 Nc6 Bd3 b8R Nh6 Ne5 Qd6 Rc6 Rf1 Be4 Bg7 Qa7 Nf5 Na4 Rc3 Rc1 Rb1 Qb6 Ke6 Ra8 Rb8 Kg5 Rb7 Ng6 Bd4 Rh8 Ng7 Nh4 Ke5 Ba3 Qf8 Bb4 Rb8 Ba5 Qf4+ Kg6 Qh6+ Kf7 Rb5 Ke7 Rb1 Qa6 R8b5 Bf5 Kd5 Kd8 Kc4 Be4 Kb3 Kc8 Kc4 Nh3 Kb3 Rg1 h1N Qb6 Ng3 Rf6 Ne2 Rc2 Kc4 Ra2 Kb3 Ra3+ Kc2 Bc6 Ne4 Nc5 Nb2 Ra1 Kd1 Ra4 Ke1 Na6 d1B Rc4 Na4 Rh1 Qh7 Ng1 Nac5 Kc7 B1c2 Kc8 R1b2 Bb7 Kd1 Bd5 Re1 Nh3 Qh6 Bc6 Kd2 Qb8 Ra1 Rb1 R2b4 Rb2 Rf1 Ra2 Ke1 Qb6 Rb1 Raa4 Bd1 Ng1
6Kb/br4P1/1Br1R1p1/1bnr4/P1nRN2n/Qq1N1b2/2r1P1RB/Rk1B4 b - - 0 1 illegal: No proof kernel
4Qb1K/r2np2b/4RP2/4n2B/1PPr2n1/N5b1/1BbqBBNR/1Rrk2n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 h5 f4 a5 b4 d5+ Kd3 h3 c4 h2 g4 a4 b6 a3 b7 a2 Bg2 h4 Bf1 h3 Qa4 Nh6 Qd1 Nf7 Nf3 Ra7 Rg1 h1R Qa4 h2 Qe8 Nd7 b8R Rh4 Ne1 Bb7 Rg2 Nfe5+ Ke2 d3+ Ke3 d2 Na3 d1B Bb2 Rg1 Be2 h1N Rh2 Bc2 Ng2 Nf2 Rb1 a1B Kd4 Bc6 Rb6 Rc1 Ra6 Nh3 g5+ Kg7 g6 Kh6 f6 Ng1 f7 Ba8 Bd3 Kh5 g7 Kg4 g8B Kf3 Re6 Bc6 Be2+ Kf2 Ne3+ Ke1 Ng2+ Kd2 Bh7 B6a4 Bf5 Be4 Bg6 Bac2 Bgh5 Bh7 Bd3 Rg4 Bf1 Kd1 Bd3 Bg7 f8B Bh6 Ke3 Bg7 f5 d4+ Kf2 Bh6 f6 Bg7 Bf1 d3 Ke3 d2 Bd3 Be4 Kd4 Bh7+ Kd5 Bh6 Bd4 Bg7 Bf2 Bd4 Bf1 Be3 Bd3 Bf4 Bf1 Bg3 Bd3 Bh8 Bh6 Bg7 Bhe3 Bf8 Bd4 Qb6 Bb2 Qe3 Rb6 Qe2 Ke6 Rd4 Rd6 Bg8+ Kf5 Bh7+ Kg5 Bg7 Ra6 Bf8 Re6 Re4 Bf7 Rd4 Be4 Qe1 Kh5 Ke2 Bd5 d1N Bf3+ Kd2 Be2 Ne3 Kg5 N3g4 Bh5 Nc6 Bf1 Kd1 Bd3 Bg8 Kg6 Bh7+ Kf7 Qd2 Bf1 Bhd3 Kg8 Nce5 Kh8 Bh7 Be2+
1nNNr2N/2kq1n2/qr2r2B/4p3/B1R1N1Kb/P1Qb4/P2R1P2/r1B2q1q b - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 g5 h4 gxh4 e5 a4 e6 a3 bxa3 fxe6 Qf3 e5 Qd1 e4 Ke2 Kd7 d4 b5 g4 e5 d6 c5 d5 h5 g5 b4 g6 e3 Kf3 h3 g7 e2 Nd2 e1Q Qe2 h4 Rb1 h2 Qd3 c4 Rb3 c3 Qe4 c2 Re3 h3 Ne2 b3 Kg4 b2 Qc4 b1R Rc3 Ra6 Ne4 Rbb6 Nf4 Be7 Ng6 Bh4 Be2 Qd2 Rd1 Qh6 Rd2 h1R Bd1 h2 Qb4 Re1 Rc4 h1Q Qa5 Qe7 Qc3 Kd8+ d7 Bb7 Bb2 c1Q Ba4 Qb1 Bc1 Qd6 Bc6 Kc7 d8N Rf1 Ba4+ Bc6 Nc5 Bb5 Ne4+ Qc6 Rb4 Bd3 d6+ Kc8 d7+ Kc7 Rc4 Qb5 Bb2 Ra1 Bc1 Qb1 Bb2 Qbf1 Bc1 Ne7 g8N Nf5 N8e7 Re8 Nh8 Nd6 Nc8 Nf7 Nb7 Qh7 d8B+ Kd7 Bf6 Kc7 Bg5 Qg6 Nec5 Qgd6 Bh6 Qdd7+ Kh5 Qb5 Nd8 Rbe6 Kg4 Rab6 Qa5 Qa6 Qc3 Qdd5 Ne4+ Qc6 Nc5 Qd7 Ne4+
1KR1B1bN/1N5n/1b2p3/B3NP2/bqnqk1Pr/1N1b3n/R3r1PQ/1n4B1 b - - 0 1 legal: proof: e4 c5 a4 f5 d4 cxd4 h3 b5 axb5 fxe4 Qg4 g5 Qd1 g4 hxg4 Qb6 Rh5 Qc7 Rh1 Qd8 Ke2 Kf7 c4 Ke6 b4 Ke5 f3 a5 c5 h5 b6 d5 b7 a4 b5 h4 b6 e3 Kd3 a3 c6 a2 c7 e2 Bg5 e1Q Bh6 h3 Qc1 h2 Bd2 Nc6 b8B Rh4 b7 Na5 Qc4 Be6 Qc1 Nf6 Ne2 Bg8 Ba7 e6 b8N Nc4 c8N Nh7 Ba5 Qb4 Qh6 Bc5 Nf4 Bb6 Nd6 Qd7 Rg1 h1N Nd2 Qg7 Rc1 a1N Nb3 Nc2 Nb7 N2a3 Be2 Nb1 Ng6+ Kf6 Nh8+ Ke5 Qh5+ Kf4 Nd7 Nf2+ Kc2 Qf6 Ne5 Nh3 Kd3 Rf8 Rgd1 Qg7 Rd2 Rf5 Nd7 Re5 Ra2 Qf6 Bd1 Re2 Ne5 Qg7 Nd2 Qd7 Ba4 Qdd6 Be8 Qdc5 Kc2 Ke3 f4 d3+ Kd1 d4 f5 Kf4 Nb3 d2 Kc2 d1B+ Kd3 Qd6 Nd2 Ba4 Nb3 Ncd2 Rc8 Qd8 Kc2 d3+ Kb2 Ke4 Qh6 Bc7 Bg1 Bb6 Qf4+ Kd5 Qh2 Nc4+ Kc1 d2+ Kc2 d1B+ Kd3 Bc6 Na1 Bda4 Nb3 Qa3 Neg6 Bcb5 Ne5 Nbd2 Kc3 Qb2+ Kb4 Nb1 Nf3 Ke4 Ne5 Bc7 Kc5 Ba6 Bb5 Bb6+ Kc6 Qf8 Kd7 Qb4 Kc6 Q2c3 Kd7 Qd4+ Kc6 Ba7 Kc7 Bb6+ Kb8 Nb2 Bd7 Bd3 Bb5 Nc4 Be8
2Nr2bq/1q1PRRb1/n1R2B1r/5q1b/1PB1pnBb/1KPB1N2/6Q1/k4q2 b - - 0 1 illegal: No proof kernel
1b1rq1r1/Q1nPqRBR/1q2PNB1/N4p2/5K1B/2N1nP1b/5rq1/k3B2r b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 cxd5 exd4 Kd2 Ke7 e4 Kd6 g4 Kc5 b3 Kb4 d6 h5 f3 a5 b6 c5 e5 c4 g5 c3+ Kd3 a4 Ke4 c2 b7 h3 g6 h4 g7 a3 Be2 a2 Bc4 d3 Ba6 d2 Be2 h2 Ba6 h3 Ne2 Qe8 Qg1 d1R Na3 Nf6+ Kf4 Rf1 g8N Rf2 Nc3 Ng4 Bb2 Ne3 Nc4 c1Q Na5 Qb1 Nf6 Rg8 Bd3 Na6 b8B Nc7 Bg6 Qe1 Rd1 a1Q Rd5 Bf5 d7 Qab1 e6 Bd6+ Re5 Qd2 Ba1 Ka3 b4 Qde1 Ba7 Rd8 b5 Qf1 b6 Qg2 b7 Qb6 b8B Qe7 Nd1 Ka2 Bc3 Kb1 Be1 Ka1 Nc3 Qe8 Bh7 Qg7 Bg6 Qgf8 Nb1 Qfe7 Nc3 Qb4+ Bd4 Qb6 Qf1 Bg4 Qa6 Bf5 Qa7 Bg4 Rg1 h1Q Rg2 Bf5 Rh2 Qg2 Rh1 Na8 Bc7 h2 Bb8 Bh3 Bc7 Ba3 Rf5 Bd6+ Be5 Rc8 Bd8 Bb8 Rh5 Nc7 Rh7 Qf1 Rg1 h1R Rg5 Qg1 Rf5 Qf1 Nfe4 Qg2 Bg7 Q7f8 Bh4 Rd8 Rfh5 f5 Nf6 Qee7 Bh8 Nc4 Rf7 Ne3 Bg7 Qfe8 Rh7
4q1n1/NPr1P1Q1/1r2Pb2/1q4B1/kBr1R3/NR2br2/KR2bp2/2B1b1nB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 f5 h4 g5 c4 a5 Kc2 d5 Kb3 Kd7 e4 f4 b6 Kc6 b7 d3 e6 g3 h5 a4+ Ka2 d4 b4 a3 e5 g2 e7 d2 c5 d3 h6 Kb5 c6 g4 h7 g3 c7 f3 Rh4 Ra4 Rd4 Nc6 b8B Bg4 c8R Qe8 Nh3 g1Q Rd5+ Qc5 Nf2 g2 Qe1 d1R Rd4 g1B Ne4 Be3 Qg3 f2 Bd6 Be2 Qg7 d2 Bg2 Ra7 Rc4 Ka4 Rb8 Nd4 Bh1 Nf3 e6 Ng1 Rb6 Rc7 b5+ Qb4 Rc2 Rf1 Rc3 d1R Rb3 Rd4 Rb2 Qa5 Bb4 Rdc4 Nd6 Rd1 Rb7 Rd3 b6 Qab5 Nc8 Bd2 Na7 Be1 Qf7 Bh6 Qg7 Be3 Rb8 Nh6 Rb3 Rf8 h8B Ng8 Rd8 Bc3 Rd4 Bf1 b7 Ne2 Re4 Ng1 Qg6 Rd6 Bf6 Rb6 Qg7 Be1 Bg5 Rf3 Nd2 R7c5 Kb1 Be2 Ra2 Rc7 Rc2 a2+ Kb2 a1B+ Ka2 Qh5 Nb1 Bf6 Rcb2 Qhe8 Na3
rn1rR2Q/1PPpK3/3B1B2/1r1bNk1q/r1Bq1R2/2b2P2/R1n5/2q1Nq1B b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 h5 b4 e5 c4 d3 g4 a4 c5 e4 b6 a3 c6 a2 b5 e3 b7 h3 b6 e2 c7 e1Q Nd2 h4 Nc4 h2 Ne5 h3 Bg2 d2 Bb2 Qe8 Ngf3 Qf1 Ne1 Nh6 f3 Bg7 Kd6 Kg5 f6 Qh5 f7 Rd8 f8B Ra4 Qb3 d1Q+ Ke7 Qd4 Qg8 Ra8 Rg1 h1Q Qh8 h2 Bc3 Kf4 g5 Ng4 g6 Ne3 Bb2 Nc2 Bc3 Bh6 g7 Kf5 g8B Bd2 Bb2 Bc3 Bc4 Na6 b8R Bb7 Rc8 Bd5 b7 Nb8 Bh3+ Kf4 Rg4+ Kf5 Bg2 Qhg1 Re4 h1R Rg4 Rh2 Bh1 Rg2 Rh4 Rg6 Rg4 Rb6 Re4 Rb5 Rf4+ Kg5 Ba3 Qge3 Bg7 Qc1 Bd6 Ra4 Rg4+ Kf5 Bf6 Rg8 Re8 Rf8 Rb1 a1R Rb2 Ra8 Re4 R1a7 Ra2 Rg8 Rf8 Ra4 Rf7 Rc8 Rf8 Rd8 Re8 Qcd1 Rg4 Qc1 Rf4+
4nqb1/1prP2B1/1N2q3/3PbQ1r/kPN2bK1/r2N1rb1/2Rn2N1/2R2RB1 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 a4 c4 d5 cxd5 gxh4 Bc4 Bh6 Bb3 axb3 Qe2 Bg7 Qd1 Bf8 g4 Kd7 Ke2 c5 Kf3 Na6 d6 Kc6 a4 h5 d4 e5 g5 c4 g6 c3 f6 e4+ Kf4 h3 g7 b2 f7 h2 a5 Kb5 d5 h4 f3 c2 Qd4 h3 Nd2 b1Q Qf6 e3 Ne2 Rh5 Rf1 Nc7 a6 Be6 d7 h1R a7 h2 Kg3 Bc5 f8B Bd6+ Nf4 e2 Bb2 c1B Bd4 Rc8 a8N e1B+ Bf2 Qd3 Nb6 Qf5 Ndc4 Be3 Qg6 Nf6 g8R Be5 Qh7 B3d2 Rg4 Bg8 Rc1 Ba1 Nd3 Qe6 f4 Ne4+ Kf3 Be5 f5 Qdf6 Bg1 Ne8 Bg7 Bh6 Nd2 Bhf4 Rg2 Rc7 Ndc4 Qfe7 Kg4 Rh3 Nc5 Ra3 Rgc2 Nd2 Nd3 Beg3 Kh5 Bh4 f6 Q7d6 f7 Qde7 Nc8 Ka4 f8N Q7f7+ Ng6 Qf8 Bd4 Be1 Nh4 Rg1 Qg6 h1R Qf5 Rg3 Bg1 Rf3 Kg4 Beg3 Ng2 Rh5 N8b6+
n2n3n/NBPn3p/2n2NPP/1rB5/1k1qrqQq/3rRR2/b5B1/4RKR1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 g5 fxg5 a5 Ba3 axb4 Bb2 Ra5 Bc1 Ra8 e3 d5 Bd3 Bg7 Ba6 d3 Kf2 d4 Bc4 d2 Be2 d3 Bf1 Bd4 exd4 Ra4 Qf3 Ra3 Qd1 Ra8 h4 Kd7 a4 Kd6 c4 f5 g4 e5 a5 b5 h5 f4 a6 b3 h6 b2 g6 f3 d5 Kc5 a7 b4 g7 e4 g5 e3+ Kg3 e2 Kf2 e1N g6 b3 d6 Qh4+ Ke3 f2 d7 Nf3 d8R Nd4 Rd7 Ne7 g8R Ne6 Ra6 Nd8 Qf3 d1R Qd5+ Kb4 c5 d2 Rg7 Re8 Ke2 Bb7 Qg2 Bd5 Nc3 b1N c6 b2 c7 Nec6+ Rge7 Ba2 Ne4 Na3 Nf3 b1N Qg4 Nb5 Rd3 N1a3 Rg1 Nd7 Nd4 Nd6 Nb5 N6f7 Bg2 Nc4 Nf6 Nh8 Raa3 Rb8 a8B Rb6 Na7 Rb5 Re4 Re7 Bb2 Re6 Bd4 Ncb6 Bb7 f1Q+ Ke3 Qf5 Ke2 Qf4 Rf3 Na8 Rac3 Re8 Rc1 Ree5 Ree3 Re4 Ra1 Rb1 Bb6 Rb3 Rae1 d1Q+ Kf1 Qd4 Qe6 Ra3 Qg4 Rd3 Bc5+
r2rN1K1/1qB1rQP1/n1qq3p/1R1q2RP/2b5/N2kN3/4P1BR/1b1N2bq b - - 0 1 illegal: Other
n1nb3Q/5K1n/2q1N3/R3RkbP/1P4b1/pB3nb1/PNRb1B1N/r2Rn3 b - - 0 1 illegal: No possible last move, all moves rejected
1Nn3qR/5rP1/P3r3/1n1KBNn1/pN5n/r7/Pr1kBNQ1/Rb1nr2R b - - 0 1 legal: proof: f4 a5 h4 g5 c4 gxh4 f5 d5 cxd5 e6 Rh3 exf5 Rh1 f4 b3 a4 b4 Bc5 Bb2 Bb6 Bc1 Ba5 bxa5 Be6 Bb2 Bg4 Bc1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 d6 f5+ Ke5 c5 d5 b5 d7 b4 g5 f3 a6 f2 g6 f4 d6 b3 g7 h3 Ba3 h4 Bb2 h2 Bc1 b2 Be3 f3 Ke4 h3 Qe1 Nc6 Bg2 f1N Bf4 f2 e3 Nd2+ Kf5 Kd3 Ke6 f1R e4 c4 e5 c3 Qc1 c2 Qe1 c1R Be3 Nge7 Ba7 Ne4 Bb6 Rf7 Qa5 Qg8 Nc3 b1R Nd5 Rb2 Bf3 Re1 Bd4 Na7 Nb4+ Kd2 Qd5 Nb5 Be2 Bb7 d8R Nc8 Qc6 Ng5+ Kd5 Rb8 d7 Rh6 Rf8 Re6 d8N Ba8 Qb7 Rb3 Ndc6 Ra3 Qd7 Rb7 Nb8 Rbb6+ Qc6 Bb7 Kc4 Ba8 Qg2 Be4 Rd8 Bb1 Re8 Rbc6+ Kd5 Rc2 Bc5 Rb2 Bd6 Qh7 Rh8 Qg8 Nf3+ Kc3 Nd4 Kd2 Rf1 h1N Nf5 Ng3 Rh1 h2 Bc7 Rb6 e6 Rc6 e7 Re6 Nh4 Nf5 e8N Rb6 Be5 Re6 Rg1 h1N Nf6 Nf2 Ng4 Nd1 Nf2 Nf3 Rh1 Ng5 Ng6 Nh4 Ne7 Raf3 Nf5 Rg3 Bc7 Ra3 Be5
bqq1nk2/q6b/5R1q/3p1N1q/3P1BNP/1RQ3NK/2BR2rP/qn4bN b - - 0 1 legal: proof: f4 a5 c4 h5 b4 b5 f5 h4 f6 exf6 g3 f5 gxh4 f4 Ba3 Ra7 Bb2 Rb7 Ba3 axb4 Bc1 b3 Kf2 b4 Ke1 Rb5 cxb5 Qe7 Nh3 Qg5 Ng1 Qd8 Kf2 c5 Kg2 f5 a4 g5 e4 d5 b6 f3+ Kg3 f2 a5 f4+ Kg2 b2 d3 b3 e5 f3+ Kg3 c4 a6 c3 e6 c2 a7 g4 a8N Na6 e7 Nc7 b7 Nf6 b8N Bb7 Bg5 c1Q Ra2 Qc8 Bf4 Rg8 Ne2 Nb5 Ra3 Nc3 Nd2 b1Q Qc2 b2 Nb6 Ba8 Ne4 Qa1 Bh3 f1B Rb3 b1Q N8d7 f2 Nc4 Bg2 Rd1 f1Q Rd2 Qfd1 Nf2 Be4 Nh1 Bh7 Kg2 g3 Bf5 Bh6 Kh3 g2 Nde5 g1Q Ng4 Qga7 d4 Rg6 Bg3 Be3 Bf4 Bg1 Nce3 Qbb2 Neg3 Nb1 Qc6+ Kf7 Qc5 Ne8 Qc3 Qf3 Bc2 Kg7 Ra3 Qbb8 Nf5+ Kg8 Rb3 Qfd1 Ngf2 Qh5 Ng4 Rg5 Rg2 Qe3 Rd2 Qee6 Be4 Qeh6 Bc2 Nf6 e8R+ Kf7 Rg8 Ne8 Rg6 Kf8 Ng7 Re5 Rc6 Re2 N7f5 Rg2 Rf6+
q1n5/3N1Br1/4prb1/2q1Q3/P1rRq3/BP2P1kq/3B1RNR/Knr3Br b - - 0 1 illegal: No proof kernel
Q7/1K6/P1Bb1n1k/rnPp2rn/NB2Nb2/6RB/b1bP1nRN/1B1n2b1 b - - 0 1 illegal: No proof kernel
nR1nnR2/1Bq1b2B/6q1/N1p1B2R/2P2bP1/k1rN2PK/bp4B1/1Q1q2r1 b - - 0 1 legal: proof: e4 e5 d4 f5 b4 a5 h3 axb4 dxe5 fxe4 Bc4 g5 Bf1 g4 hxg4 Ra6 Qd2 Ra5 Qd1 Ra8 f4 Ke7 Kf2 h5 Kg3 d5 a4 b5 a5 b3 f5 h4+ Kh3 b2 c3 e3 a6 b4 e6 Kd6 a7 Kc5 g3 d4 f6 e2 f7 e1B e7 d3 e8B d2 Bc4 b3 Be6 Be7 f8R Nc6 B8d7 Nf6 Bf7 Ne8 Qe2 d1Q Qe4 Bd2 Bfe6 Bf4 Kg2 h3+ Kf2 h2 Nd2 b1N Kg2 b2 Nh3 Na3 Bg8 Nc4 Bh7 Nb6 Nb3+ Kb5 Bdf5 Be6 Na5 Ba2 c4+ Kb4 Nf2 Ka3 Nd3 Qb8 Qe1 Nd8 Be4 c5 Kh3 Qc7 Bb7 Rb8 Be3 Na8 Bd4 Qb1 Bg2 Rb3 Be5 Qc2 Qb1 Rc3 Rf6 Rf8 Rb6 Rf6 Rb8 Rd6 Bb7 Rd7 Rf1 Qd1 Rf2 h1Q+ Rh2 Qe4 Rh1 Nb6 a8B Qg6 Bg2 Rd6 Bab7 Na8 Rf1 Bc1 Rf8 Bf4 Qc2 Rd7 Rc1 Rd4 Qb1 Re4 Rc2 Re1 Rf2 Rg1 Rf3 Bfg5 R3f5 Bf4 Rh5
6BR/rRN1Kbqn/2R2BPP/b1p1n1P1/1B1qrrQ1/1N5q/1p4k1/B1b5 b - - 0 1 illegal: No proof kernel
1Kb3rq/n2q4/4P1pr/RB2NQPR/n7/R1B4p/B1PrbBb1/Nk2q3 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 c5 d4 cxd4 h5 g6 h6 Bg7 hxg7 Qb6 Be3 Qc7 Bc1 Qd8 Kd2 Ke7 Kd3 Kd6 Kc4 Ke5 Kc5 d5 g4 h5 b4 f5 e4 a5 b6 f3 g5 a4 b5 a3 b7 a2 b6 f4 Rh2 f2 Be3 f3 Ba6 f1B Rh3 d3 Qc1 d2 Rh4 d1Q Bc4 d4 Rh1 f2 Qb2 h4 Bb5 Rh6 Nd2 Bg2 Nb3 f1B Bf2 Na6+ Kc6 Nc5 b8R Qe1 b7 Na4 Nf3+ Kf4 e5 d3 Qa3 d2 Qc5 d1R Rh3 Qd5+ Kc7 Ne7 g8B Nc6 Qf8+ Ke4 Qf7 Qe6 Qf5+ Kd5 Rh1 Be2 Rh2 Rd2 Rh3 Ra5 Ra8 Na7 b8B Ra6 Bf7 Rd6 Rh1 Rd8 Rh2 Rg8 Rh1 Nc6 Ra5 Na7 Rh2 Qh1 Rh3 Qh2 Rh1 a1Q Rg3 Qd4 Na1 Qg1 Rhh3 Qe1 Rh2 Kc5 Rgh3 Qe8 Ba2 Kb4 e6 Ka3 Ne5+ Kb2 Ra3 Kc1 Ng4 Qh8 Ne5 Nc6 Bba7 Kb2 Bab6 Na7 Kb8 Qe7 Bbc5 Qd7 Bb4 Kc1 Rhh3 Kb2 Bc3+ Kc1 Re3 h3 Re4 Bc4 Rh4 Be2 Bd5 Kb1 Rh5 Qg1 Bdc4 Qe1 Ba2+
1bqq2b1/R3P1nr/r2pkbN1/2p2B1q/4K2P/2QNB1BP/R6r/Rn4B1 b - - 0 1 illegal: No possible last move, all moves rejected
3B3N/KQBP1P2/1rR5/2n2P1k/npb1N3/b2pN2q/B2r1q1n/bBR1r3 b - - 0 1 illegal: No proof kernel
Kb1Bb2r/2qPNPR1/BQp5/N2N1b2/q4n1B/2Rr4/1p1nPB1q/k4n2 b - - 0 1 illegal: No proof kernel
1b2q3/P5NN/2qRb1Pn/Br5N/rnP1RN2/2n1Q3/qpb1p1B1/1k2KR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 c4 Kf7 g4 h5 f4 b5 a4 d5 f6 Ke6 f5+ Ke5 g6 Ke4 f7 e5 a5 d3 a6 h4 g5 h3 g7 d2+ Kf2 d4 f6 h2 g6 b3 Ke2 b4 Bb2 d3+ Kf2 Rh5 Bc1 b2 Qb3 d1B Be2 d2 Bf1 Be6 Nh3 Qe8 Nf4 Bd6 f8N Nh6 g8R Bc2 f7 d1N+ Ke1 Nc6 Nh7 Bb8 f8N Nc3 Nd2+ Kd4 Rb1 e4 Bg2 e3 Nf1 e2 Ng3 Rb5 Rf1 h1Q Ngh5 Ra7 Qa3 b3 Bd2 Nb4 Rd1 b1Q Rg7 b2 Re7 Qa2 Qb3 Rab7 a7 Ra5 Qa3 Ra4 Qb3 Rb5 Qa3 Qh3 Qb3 Qf3 Qa3 Bg4 N8e6+ Ke4 Neg7+ Be6 Nh3 Kd3 Qb3 Bf5 Re4 Be6 Qa3 Bb3 N3f4+ Kc2 Bc1 Kb1 Rd6 Bd1 Be3 Bc2 Bb6 Qg8 Ba5 Qe8 Re3 Qfc6 Re4 Na6 Qc5 Nb4 Qe3
3q2QN/Pr1qb2n/R3pRKN/1R6/4P3/1p1PBBn1/N3rn2/bkbq2N1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 h3 fxg4 Nc3 g3 Nb1 g2 Qb3 g5 Qc2 g4 Qb3 g3 Qd1 Bg4 hxg4 Qd6 Bb2 Qd7 Bc1 Qd8 a4 Kd7 f4 Kd6 e4 Kc5 Ke2 Kd4 Kf3 h5 d3 c5 g5 b5 f5 c4 Kf4 c3 g6 e6 a5 b3 g7 b2 f6 c2 Kg5 b4 a6 h4 d6 b3 a7 h3 d7 h2 Nd2 Kc3 Qg4 b1Q Kg6 Ne7+ Kg5 Nf5 g8N Be7 Ba3 c1B Bb4+ Kb2 Bc5 Qc2 Ne2 g1Q Be3 g2 Nc3 Ng3 Kg6 Qd1 f7 Qf2 f8N g1B Be2 Qf4 Bf3 Qd6 Ra6 Qd5 Bc5 Bd4 Rf1 h1N Nh6 Nf2 Na2 Kc2 Qg5 Ba1 Be3 Qd6 Bg2 Rh7 Nf3 Kb1 Ng1 Rf7 Bh1 Rf5 Bf3 Rc5 Nf7 Rc2 Nh6 Re2 Qg4 Nc6 Qg5 Rb8 Qg4 Nb4 Qg5 Q8b6 d8R Rb7 Rb8 Qbd8 Qg4 Q6d7 Qg5 Rc7 Rb5 Nd5 Kh7 Nf5 Bg2 Ng4 Qg8 Ng3 Ng6 Rb7 Nh8 Ndf6+ Kg6 Nh7 Rf6 Nf2 Bf3
qn6/pqB1nN1r/P1Nr3b/3bRPNq/4B3/n4Q2/p1P1R2R/2b1NK1k b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Qb6 a5 Qc7 Qd3 Qb6 Qc4 Qd8 Qa4 bxa4 f4 Kf7 b4 Kf6 h4 e5 a6 d5 b5 g5 h6 e4 h7 d3 b6 e3 b7 a3 h5 d2+ Ke2 d1N h6 g4 Nc3 d4 Na2 d3+ Ke1 g3 Rh4 g2 Nb4 e2 Nc6 a2 Rh2 Nb2 Nf3 g1B Rg2 Ne7 Be3 Qc7 Bb6 Nc4 Rb1 Bd4 Rb5 Be6 Re5 Be3 Ba5 Qc8 Bc7 Bc1 Kf2 d2 Ne1 d1Q Kg1 Rg8 h8N Rg6 h7 Bd5 Nf7 Bh6 h8N Na3 Ng5 Rg7 Nhf7 Rh7 Rh2 Qe8 Bg2 Qf8 Be4 Qg7 Kf2 Qg8 Nd3 e1Q+ Kg2 Qa5 Ne1 Qb4 Kf1 Qh5 Rd2 Nd7 b8R Qb7 Re8 Rd8 Rg2 Nb8 Bf3 Rd6 Ree2 Kg7 f6+ Kg6 Re5 Qh4 Be4+ Kh5 Nh8 Qh3 f7 Kh4 f8Q Qg4 Nhf7 Qh5 Re2 Kg3 f5 Ng6 R8e6 Ne7 Rg6 Qa8 Qc8 Qe8 Qb7 Qc8 Ng2 Kh2 Qb3 Qcb7 Qf3 Be3 Ne1+ Bf2 Nh3 Bc1 Rg2+ Kh1 Nhg5 Bfe3 Ne6 Bh6 Neg5 Bf4 Nh8 Be3 Nhf7 Bc1 Rh2#
1k2Rr2/pNnRP2P/1Qr2n2/p5BB/b2R2n1/KNP4r/1RbbB3/3q3q b - - 0 1 illegal: No possible last move, all moves rejected
b1RRnq2/p1Bp1n2/Pq1PR1qk/N1B5/B4b1r/3bR1Nr/6P1/K1Qn4 b - - 0 1 legal: proof: f4 c5 h4 g5 b4 gxh4 bxc5 e5 e4 f5 exf5 exf4 d4 Kf7 Kd2 Kg7 Kc3 b5 Kb2 h5 a4 f3 c4 f2 d5 b4 d6 b3 a5 h3 a6 h2 c6 h4 c7 h3 c5 Nc6 Ne2 Ne5 c6 Nf7 Nd2 Bb7 c8R Rh4 c7 Kh6 Ra3 Nf6 Ka1 Ne8 f6 Bc6 Rg1 h1Q Ng3 h2 Bb5 f1B Ba4 Bd3 Re1 Qg1 Re6 h1N Nc4+ Qe3 Bb2 Qb6 Bd4 Nf2 Na5 Be7 Qb1 Nd1 Bc5 Rb8 Qc2 Ba8 Qb2 Bf8 Qc3 Qe7 Rd8 Rh3 c8R b2+ Ka2 Bg7 Qc4 Qf8 Qc1+ Kh7 Rc3 Bh6 Rb3 Bf4 Rc3 Nh8 Ra3 Kh6 f7+ Bg6 Rae3 b1Q+ Ka3 Qf5 Ka2 Qg5 Ka1 Qf6+ Qc3 Bd3 Qb2 Qg6 Qc1 Qg8 f8B+ Qg7+ Ka2 Nf7 Be7 Qf8 Ka1 Rb7 Bf6 Rc7 Bb4 Rc4 Bc5 Bg5 Bc3 Rch4 Bf6 Bf4 Bfd4 Qb8 Bb6 Qb7 Bc7 Qb6 Bc5
2bn3Q/rb1R1R1b/r3r2p/1q4bP/2NnRBB1/3PKB2/p3NRbP/6k1 b - - 0 1 illegal: No proof kernel
krb5/3b1RR1/P1qnn1KN/pB1b4/N1Q2bB1/Ppn3b1/3rP1NR/6R1 b - - 0 1 illegal: No proof kernel
B2K3R/n1Q4P/2Nn2NB/1r2P1r1/Pp2b1R1/p2bnq2/b4b1N/1bRN1k2 b - - 0 1 illegal: No possible last move
B2rk2b/Q2R3p/B3b2N/B1P3q1/2pnR1P1/n1KPnNr1/1RB5/b2b3b b - - 0 1 illegal: No proof kernel
3Bn2n/3bpRr1/1kN2qRN/b1r1R3/1P1Q2nP/1N3BRP/4bpK1/1n4n1 b - - 0 1 illegal: No possible last move, all moves rejected
Kn2b1rR/Br1rp1B1/1B3qRN/4b1Np/1Bn1P1n1/2n1nP1R/7P/3Q1k2 b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 f5 a4 fxg4 axb5 a6 b4 Ra7 b6 Nf6 b7 Kd7 b5 Nh5 b6 Ra8 Bg2 Ke8 Be4 Nf6 Bd3 Ng8 Bb5+ axb5 d4 Kf7 Kd2 Kf6 Kc3 Kf5 Kb4 Ke4 Kc5 g5 e3 h5 d6 g3 d5 b4 d7 b3 d6 g2 Qg4+ Kd3 f3 b2 e4 Nf6 Qh4 g4 Nh3 Ke2 Qg5 g1N Qd2+ Kf1 Kb5 c5 Qd5 g3 Bd2 g2 Na3+ b1R+ Bb4 c4 Nc2 c3 Nd4 c2 Ng5 c1N Nf5 Nd3 Ra6 Ne5 Nh6 Rg8 Ka5 Qc7 d8R Ra7 d7 Bg7 Rf8 Qc3 d8B Nfg4 Qd1+ Qe1 Bc7 Nc4+ Kb5 Bf6 Be5 Bh8 Bg7 Bd7+ Kc5 Nge3 Re8 Nc6 b8B Rb7 Bg3 Nb8 Bf2 Rb2 Rc8 Be8 Rd8 Rd7 b7 Rb3 Rg6 Rb2 Bg3 Rb1 Bc7 Rb2 Bb6 Rb3 Qd6 Qc3 Kb5 Qf6 Qd1+ Kf2 Rc8 Ne2 Rg1 Nc3+ Kc5 Ncd5 Rd8 Ng4 Kb5+ Nde3 Kc5 Nc6 b8B Rb1 B8a7 Nb8 Rh1 g1N Rc8 Nh3 Rg1 Nf4 Rg3 Nfd5 Rh3 Nc3 Bc7 Nd6 Kb6 Ndc4+ Kb7 Rb3 Ka8 Kg2 Bbc5 Rb7 Bc7b6 Kf2 Bb4 Kg2 Qc2+ Kg1 Rd8 Kf1 Qd1+ Kg2 B4c5 Qc6 Ba5 Bf7 Bf8 Rg7 Qd5 Kf1 Bcb4 Qe6 B5b6 Qf5 Rd6 Rg6 Rc8 Be5 Re8 Rg7 Rg6 Qf6 Rd8 Rh7 Bg7 Rh8 Rg8 Be8 Bf8 Rh7 Rh8 Rg7 Qd6 Rg8 Bg7 Ng2 Qd2 N2e3 Qd1+
BQ3nn1/k2P1p2/N4Pb1/3b1BrR/2P3nN/1p5q/3bn2B/1n1KBRRr b - - 0 1 legal: proof: e4 b5 a4 g5 h4 d5 hxg5 dxe4 axb5 c5 b4 cxb4 c4 Kd7 g3 Kc7 f4 Kb6 d4 e5 d5 h5 d6 a5 f5 b3 g6 a4 g7 h4 f6 h3 g4 a3 g5 e3 g6 h2 Qd2 e2 Qc2 e4 Qb2 a2 Kd2 e1N Na3 e3+ Ke2 Qd7 Nb1 Nc2 Nc3 Nh6 g8B Ra5 g7 Na3 Bd2 Ka7 Rd1 a1N Bg2 N1c2 Bh7 Nb1 Rf1 Nd4+ Kd1 Qe6 g8R Nd7 Rg3 Ng8 Na4 Bh6 Nf3 Nf8 Nc5 Bb7 d7 Be4 Rhg1 h1B Na6 Bf5 Rg5 e2+ Kc1 e1N Kd1 Nd3 Be1 Ne5 b6+ Ka8 b7+ Ka7 Qa3 Ne2 Qd6 Be4 Rf5 Bd2 Bg6 Rh2 Rh5 Qh3 Nh4 Ng4 Bh7 Rg5 b8B+ Kb7 Bc7 Ka7 Qg3 Bd3 Ba8 Bd5 Qd6 B3e4 Qb4 Rh1 Bh2 Bg2 Bd3 Bge4 Qd6 Bh7 Bf5 Bg6 Qb8+
q1BK4/2p1R1bN/1Q1R3n/2PR2Rp/r1n2b2/kN2bb1P/1BPn1N2/b2r4 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 b5 a4 f5 axb5 fxg4 Bg2 Qd5 Bf1 Qc5 bxc5 Ba6 Ba3 Bb7 Bc1 Bc8 Ke2 Kd7 Ke3 h5 Kf4 a5 Ke5 g5 d4 g3 f4 g4 d5 e3 h3 e2 f5 e1Q+ Be2 g2 f6 a4 d6 g3 f7 a3 b6 Kc6 b7 a2 d7 Ra4 Ke6 Nh6 Bb2 Bg7 f8R Qa5 Qc1 Qa8 Nf3 g1N Nbd2 g2 Nh2 Nf3 Rd1 g1B Rd8 Be3 Nb3 Nd2 Bg4 Kb5 Rg8 Kb4 Qb1 Nc6 b8N Bb7 d8R Ne5 Nd7 Bf3 Nf6 Nec4 Kd7 e5 Nh7 e4 Rde8 Bf4 Re7 e3 Be6 e2 Ng4 e1B Nf2 Be3 Rd8 Rf8 Bf5 Rf7 Ke8 Rf6 Bc8 Rd6 Rdd7 Rd5 Rd6 Bf4 Kd8 Rd3 Ne4 Bf2 Rg1 Rd4 Rg5 B2e3 Nf2 Rd3 Qe1 Rd5 Rd1 a1B Qe2 Na5 Qa6 Nac4 Rdg1 Rd4 Rgd5 Rd3 Rgg5 Rd4 Bc3+ Ka3 Qb6 Nf1 Qb5 Rd1 Qb6 Nfd2 Bb2+
B2N4/k1r4Q/1bnbR3/3P1KnP/2p1rpn1/1qRbBrN1/2PR2Rn/1N6 b - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 d5 a4 dxe4 f3 exf3 axb5 Qd5 Bc4 Qd6 Bf1 Qd8 Kf2 Kd7 Ke3 c5 Kf4 Kc7 b4 Kb7 d4 g5+ Ke4 f5+ Ke5 a5 h4 f2 h6 f4 h5 c4 h7 a4 b6 a3 b5 a2 d5 g4 Bb2 g3 Qc1 g2 Qd2 Ra7 Bd4 Nf6 Rh3 Bf5 Ne2 g1B Ng3 Bd3 Be3 Nc6+ Ke6 Rg8 h8N Ng4 Nf7 Qb8 Nd8+ Ka8 Rh2 Rc7 Bh3 f1N Rg2 Nfh2 Qc3 Rg5 Qg7 Rf5 Qh7 Re5+ Kf7 Re4 Kg6 e5 Kf5 Bc5 b7+ Ka7 b6+ Ka6 Nc3 Bd6 Rd1 a1R Rdd2 Rf1 Nb1 Rf3 Bc5 Qa7 b8R Qb7 Rc8 Qb8 b7 Bd4 Ne6 Bf2 Re8 Bd4 Nd8 Bg1 Bb4 Ka7 Re6 Bb6 Bc5 Rd4+ Kg5 e4 Kf5 e3+ Kg5 Qa8 b8R Re4 Kf5 e2 Bd4 e1N Be3 Bd4 Rb3 Qb8 Rc3 Qb3 Kg6 Bb6 Kg5 Nge5 Bf5 Neg4 Bg6 Rf2 Be8 Nef3+ Kf5 Ng5 Bd7 Rf1 Bc8 Rf2 Bb7 Rf3 Ba8
2nK2NB/2r1r1R1/1k1n1b2/1PPbPpNR/5qb1/1r3n2/2Bp2BB/1Qn1N3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ Kh4 h5 b4 a5 g4 f3 c4 a4 e4 f2 e5 a3 Ne2 d3 Ng1 d4 Be2 f1R Nf3 a2 Na3 d2 Nc2 d3 Nce1 Ne7 g6 Kb6 Kg5 h4 Kf6 h3 g7 h2 g8N Ra3 g5 Nbc6 g6 Rh7 g7 Bg4 Rb1 Rf2 Bf1 a1N Bg2 Nd4 Qc2 d1N Bf4 d2 Ng5 Ne3 Qb2 Ka7 b6+ Ka6 b7 Nf3 b8B Qd4 b5+ Kb6 Qc2 Nb3 Bd6 Nc8 Be7 Nc1 Rb3 Qe4 Qb1 Nf5 Rg1 h1B Bh2 Qf4 Re3 N3d4 Rh3 Nf3 Rh5 Re3 Nh6 Rb3 g8B Rg7 Bh7 Nfd6+ Bf5 Re2 Ng8 Re4 Qa2 Rd4 Qa1 Rh7 Qb1 Bh6 Bf8 Rd5 Bg7 Rc5 Bh8 Rc7 Bf1 Nd4 Rg3 Bd5 Bg2 Nf3 Ne6 Qd4 Bc2 Be3 Ng5 Bf2 Rgh3 Bh4 Rg3 Qf4+ Bf5 Qe3 Bc2 Bf5 Rg4 Bg3 Ne4 Bh4+ Rgg5 Qf4 Bd3 Na7 Bc2 Bd7+ Ke7 Nac8+ Kd8 Bg4 Rh6 f5 Rh5 Rhe7 Rg7 Bf6 Ng5 Ra3 Rf7 Re3 Rg7 Rb3 c5+
6kq/3NN1br/r1p1R2B/4PrPP/pbB1bnRR/1Qnnr3/3N4/K1N5 b - - 0 1 illegal: No proof kernel
RB2r3/B1NRk3/Pn3N1R/2B1b1Kn/B1pq1r2/1pPQr2b/5bP1/n6n b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 g5 fxg5 h6 gxh6 d5 Bd3 dxe4 Bb5+ Nd7 Bf1 Nb8 Kf2 c5 Ke3 e5 h4 b5 a4 f5 d4 b3 h5 c4 c3 b2 d5 b4 h7 Nd7 a5 Bg7 h6 Ke7 Nh3 Nb6 Qd3 Nf6 Nf4 Nh5 Ne6 Rf8 Nd2 b1N h8B Na3 h7 b3 Be2 Qd7 Bg4 Qa7 Nc7 f4+ Kf2 f3 Ke3 f2 Bd7 Rf7 Ba4 Bh3 a6 Re8 d6+ Kd8 d7 Ke7 d8R Rf4 Ra8 f1N+ Ke2 e3 Ne4 Nc2 Nf6 e4 Ba3+ Nb4 Rd1 Nfg3+ Ke1 e2 Kd2 e1B+ Ke3 Bh6 Rh2 Nh1 Bg7 Bg5 h8B Bgh4 Rd2 Bhg3 Bf8+ Kf7 Bd6 Bef2+ Ke2 Nc2 Bac5 e3 Be5 Rd4 Kf3 e2 Bg7 e1R Bh6 Bf5 Be3 Na1 Bed6 Be5 Rh3 Be4+ Kg4 Bf5+ Kg5 Rf4 Bed4 Re3 Rd1 N5g3 Rh6 Bh3 Rd2 Nh5 Rd1 Qb7 Rd2 Qd5 Rd1 Nc8 Ba7 Nb6 Bb8 Nd7 Bda7 Nb6 Bc5 Qd8 Qf1 Qd7 Rd6 Ke7 Qe2 Qe6 Qc2 Qd5 Qd3 Qd4 Rd7#
k1n4R/2r3r1/PB2B2p/P2p3b/n2K1R1n/1rQB2R1/P3Bnb1/N1b1q1N1 b - - 0 1 illegal: Other
nN2B1NN/b4b1P/3K2p1/rqBb1Pb1/B1rR4/QB1n2p1/1k1P1R2/2r1n3 b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 bxa5 d5 cxd5 hxg4 Ke2 Kf7 Ke3 c5 Kf4 b5 Ke5 g6 f4 g3 a4 b4 h4 e3 h5 e2 d6 e1N a6 b3 a5 b2 d7 c4 a7 c3 a6 c2 h6 Bb7 h7 Bd5 Nc3 b1B Ra4 Qb6 Nf3 Bba2 Bc4 Qb5 Nd4 Bh6 Ba3 c1R Ne4 Nf6 Rh2 Rc8 Nc6 Bg5 Bc5 Ne8 Nf6 Nc7 Bb3 e6 Kd6 e5 Rd4 e4 Rg2 e3 Rf2 e2 Ng8 Rc4 Qb1 Rc1 Na5 Nc6 f5 Nb4 Qb2 Nbd3 d8N+ Kg7 Qc3 Bf7 Ba4 Bad5 Nac6 Kf8 Nb8 Kg7 Ne7 Kf6 Qc4 Nc2 Qb4 e1B Rh2 Bf2 Bb3 Bfe6 Nf7 Nce1 Nh8 Bg1 Rf2 Bf7 Bb6 Ne6 Ba4 R8c4 Bc5 Nc7 Nbc6 Rg8 a8B Rg7 Bb7 Na8 Nb8 Rg8 Bc6 Re8 Kd7 Ke5 Ng8 Re6 a7 Rf6 Kc8 Rd6 Bd7 Ra6 Be8 Ra5 Rg2 Nc7 a8B Bf2 Bac6 Na8 Kd7 Bg1 Bb3 Bf2 Rh4 Bd4 Rf2 Bde3 Bf8 Bb6 Bc5 Ba7 Rhh2 Ke4 Rh4+ Nf4 Kd6 Kd3 Ba2 Kc2 Bb3+ Kb2 Bcd7 Nfg2 Rd4 Nf4 Bc6 Nfd3 Bcd7 Qb7 Bda4 Qb5 Qa3+
NB2r2n/1P2n3/b1bQrk1B/1PNNbBRK/3n3P/5prB/3p2qR/4r3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 g5 Kg4 a5 c4 f5+ Kf3 d5 e4 a4 b4 d3 h4 d4 e5 d2 e6 g4+ Kf2 f3 Kg3 a3 c5 d3 b6 a2 b7 f4+ Kh2 f2 c6 g3+ Kh3 f3 Kg4 g2 c7 Nc6 h6 Ra6 h7 Bd7 c8B Kf6 Nc3 Nh6+ Kh5 Bg7 e7 Qg8 Rh2 Nf7 Nge2 g1R Nf4 Rg3 Bh3 f1B Na4 Rb6 Rb1 a1N Nc5 Nb3 Rb2 Be8 Bcf5 Nbd4 Ra2 Bd7 Ra5 Be2 Qb3 d1R Qd5 Re1 e8N+ Ke7 Nc7 Be5 Be3 d2 Na8 Ba6 Rb5 Kf6 Qd6+ Kg7 Ra5 Ne7 Nd5 Bc6 Bg5 Qb8 Rb5 Re8 Be3 Nh8 Bh6+ Kf7 Ra5 Nhg6 h8B Qd8 B8g7 Nh8 Bf4 Qc8 Bgh6 Qe6 Nc3 Qc4 Nd5 Qf1 Qd8 Qg2 Qd7 Bg7 Bb8 Be5 Qd6 Ba4 Qd8 Re6 Qd6 Bd7 b5 Bc6 Ra4 Nb3 Rg4 Nd4 Nf4 Kf6 Rg7 Nf7 Rg5 Nh8 Nd5+
2k2B1q/1p5N/2Brn3/5P1n/b1P1R1Nn/1B1r1PR1/Q2bKp2/3BbRrr b - - 0 1 illegal: No proof kernel
2n1R3/8/3BB1q1/K4Bnp/PNrr1p2/2PqRn1b/2PbQ1k1/1N1nRnB1 b - - 0 1 illegal: No proof kernel
1BBK2QR/q1r3Nn/3bNN2/Pb4r1/2k1Pn2/1p2b1bR/1qb1p1P1/2R2R2 b - - 0 1 illegal: No proof kernel
KN2R1R1/nP2B3/r1P2bkr/BN2Q2r/Bpn5/q1pNrbq1/P2N1r2/8 b - - 0 1 illegal: No proof kernel
bkq4r/BpN2K1b/1N2Rb1p/2bPPQ2/Pbn4n/R1R1B1R1/r3B3/3q4 b - - 0 1 illegal: Other
RR2K3/4n3/B1n1k1Nq/p2n2P1/2n1qBr1/br1bRP2/1P2qpQ1/2BN1R2 b - - 0 1 illegal: No proof kernel
4B3/1R6/r2qPRk1/1Rb1B1p1/bqn1rb1p/Q2n1Nnn/2NP1NPN/K7 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 e4 g5 b4 c5 b6 h5 b7 a5 e5 f5 d6 Kf7 d7 a4 d8N+ Kg6 b5 c4 e6 c3 b6 a3 Nc6 f3 Bc4 f4 Na7 a2 Bb5 c2 Na3 Nf6 Nc6 Nd5 Nb4 Bc5 Bb2 c1N Rb1 a1B Nac2 Nc6 b8R Ne5 b7 Ra6 Nd3 Nc4 Nf2 Bd7 Be5 h4 Ba4 Rf8 Rb5 Qg3 Qe2 Nd3+ Kd1 Bad4 Qf1 Be3 Rh3 Rf6 Rf8 Rf7 b8N Qg4 Nc6 Rf6 Ne4 f2+ Nf3 Rf5 Qh1 f1N Nf2 Ng3 Rf7 Be8 N6d4 Bc6 Bg7 Re5 Bf6 Re4 Be5 Bd7 Qf1 Bc6 Qe2 Be8 Nh2 f3 Qe1 Bf4 Qe3 Ne1 Kc1 Nd3+ Kb1 Bd7 Nd1 f2 Ndf3 f1Q Ka1 Qe2 Nf2 Bc6 Qd4 Qe3 Qb2 Qd4 Bg7 Qe5 Rbb7 Qd6 Qa3 Bfe3 Be5 N5f4 Nf1 Bb5 Rh1 Nh3 N1h2 Bf4 Rb1 Bd7 R1b3 Bc8 Be8 Bd7 Rb2 Ba4 R2b5 Qf5 Bf6 Qfd5 Be5 Qd4+ Ka2 Qc3 Kb1 Qb3+ Ka1 Qb4 Rf6#
KN1QBn2/R7/3P2b1/B2BqPpN/3k1bpB/1P2Rr2/q1q2q1R/1n3rn1 b - - 0 1 illegal: No proof kernel
K1nn1R1B/1r3qn1/1Pp1N3/P3p3/7R/R1P1r1B1/2Q1Rbb1/1Nq1Bqqk b - - 0 1 illegal: No proof kernel
2r1kNb1/2n3Qn/Pr2PP2/qn1q1Np1/2p1N1K1/2R2RbN/1bBBR3/b7 b - - 0 1 illegal: No proof kernel
1n1rBBK1/1bQ2n2/p4q2/q1kPN1pN/3q4/RPN1q1BP/2rb3n/2RN4 b - - 0 1 illegal: No possible last move
1R3Rbr/5nNP/2K2NPn/4bRnn/1B4rP/1q2Q3/k3qp1p/1BB1b1R1 b - - 0 1 illegal: No proof kernel
r2R1rQ1/5b1P/RnpK1b2/3B3B/4qk2/2nr1rR1/P2PNNp1/bR2q1B1 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 Kf2 Kd7 Ke3 b5 Kd4 f5 e4 g5 h4 f4 d6 Ke6 Kc5 f3 h5 f2 h6 c6 h7 b3 Be2 f1R Nf3 b2 Bd3 b4 Qa4 g3 Bb5 b3 Rh6+ Nf6 Nc3 b1R Ne2 g4 Bb2 g2 Nh2 g1B+ Bd4 b2 Rh3 g3 Ng4 g2 Qb3+ Nd5 Bc4 Bg7 d7 Qh4 d8R Qe1 Rg3 Rf3 Bf2 Bf6 Be3 Kf7 e6+ Kg6 e7 Nd7+ Kd6 N7b6 e5 Kf5 e8B Be6 Bh5 Rf8 Bf2 Bg8 e6 Kg5 Bc5 Bgd4 e7 Bc3 Bd4 Rc1 Bg1 b1Q Nf2+ Kf5 Qd1 Qe4 Rb1 Ba1 Qa4 Rcc3 Qb3 Ra6 Ra8 Rcd3 e8R Ra7 Red8 Nc3+ Nd4+ Kf4 Bcf7 Rc7 Ra6 Rc8 Qd5 Ra8 Qe6 Bh8 Qg6 Bg7 Bd5 Bf6 Qg7 Be6 Qg8 Bf7 Ne2+
1qq5/3RN2p/3Nqb2/PP3pN1/K3BBb1/P2n2rq/B2r1b2/R1n1kQN1 b - - 0 1 illegal: No proof kernel
Kb6/Bn3qp1/5Q2/BP2qB1p/k3b2R/1Pq1PB2/1n2NNrr/q4nNR b - - 0 1 illegal: No possible last move, all moves rejected
1k1K3B/1Qr1nP2/2pp4/P2rn1R1/1r1R3b/2n1q3/NNP1q1B1/N2Rb1nN b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 e5 dxe5 f5 h3 fxg4 Kd2 g5 Qe1 g3 Nc3 b6 Kd1 g4 Kd2 g2 Qd1 g3 Nb1 Bb7 Ke1 Bc6 Kd2 Bf3 Ke1 Bg4 hxg4 Ra6 Nc3 Ra4 Nb1 Ra8 Kd2 h5 Ke3 h4 Kf4 h3 Kf5 b3 f4 c6 e4 b2 a4 h2 e6 b5 g5 b4 g6 b3 g7 Rh3 e7 Qc8 a5 Ra6 e5 Qc7 Nc3 b1R Ra4 b2 Rd4 Qd6 Qe2 Ra1 Na2 b1Q Nf3 g1B Bb2 g2 Nd2 Qc5 Nb3 Rb6 Qa6 Rb4 Kg6 Qb5 f5 Rh7 f6 Bf2 Bc3 g1N Bg2 Q1f1 Kf5 Rc1 Na1 Qbe2 Kg5 Qe3+ Kg6 Nh6 g8R Qfe2 Rg7 Ng8 Bb2 Nh3 Rhd1 h1N Kf5 Bg3 Rg5 Be1 Kg6 Ng1 Kf5 Kf7 e8N Nf2 Ng7 Be7 Nh5 Ke8 e6 Kd8 Ng3 Kc7 Nh1 Ne4 Kg6 Bd8 e7 Nc3 Kf5 Rb1 f7 Rh5 Kg6 Rb7 e8N+ Kc8 Qb5 Ne7+ Kf6 Rc7 Qc4 Kb7 Nd6+ Ka7 Qb5 Ka8 Nc4 d6 Rg3 Rd5 Rg5 Ne4+ Ke6 Nd7 Qa6+ Kb8 Bc3 Rb4 Nb2 Nc8 Rc4 Be7 Bh8 Ne5 Rcd4 Nc3 Rf5 B7h4 Rg5 Ne7 Kf6 Rc8 Ke6 Ng4+ Kd7 Rc7+ Kd8 Ne5 Qb7+
1B3rb1/1k1N1P2/1P2B1p1/bnn2R1q/4BRbb/P1Q2qN1/BK5p/2Rr3r b - - 0 1 illegal: No proof kernel
2rNN1K1/r4pB1/2Q3BP/3rb3/q1b2n1k/2nRR1P1/P4NBp/r2q1B1q b - - 0 1 illegal: No possible last move
bKB1B1R1/4p3/5qbP/rRP4k/n1N1n1b1/q2Rp3/q1rqP2B/BN5Q b - - 0 1 illegal: No proof kernel
2N2bB1/K1BpN3/2r2q2/3bpb2/RP1P2Nr/1nn2qnk/1BBP1Q1n/3R4 b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 fxe4 h4 g5 c3 gxh4 Qc2 c6 Qb3 Qb6 Qd1 Qd4 cxd4 Bb7 Rh3 Ba6 Rh1 Bc8 Ke2 Kf7 Ke3 Kf6 f4 Kf5 b4 e5 b6 a5 b7 h5 g3 h3 Ba3 h2 Nf3 Kg4 f5 c5 f6 a4 f7 h4 Qb3 h3 Qd3 c4 Qe2 c3 Bg2 c2 Rf1 c1N Rh1 Na6 b8N Nf6 Rf1 h1Q Rd1 h2 Qf2 Bb7 Nc3 Nc5 Nd5 Nh5 Nb6 N5b3 Nc6 Rc8 Ra2 Ne2 Bb2 a3 Ne7 Rc6 Nbc8 Nc3 Bf1 Qg2 Bd3 h1B Bc2 Kh3 g4 Ng3 g5 Rh4 g6 Ba8 Raa1 a2 g7 Qf1 g8B Qa6 Rab1 a1Q Nh2 Q1a3 Ra1 Bf3 Ra2 Bg4 Raa1 Bf5 Ng4 Rc5 Ra2 Bd5 Raa1 Qf6 Ra2 Bg7 f8B Qa8 Ra4 Rc6 Ng6 Qb7 Bd6 Bf8 Bc7 Qa8 Nge7 Qb7 Qe2 Qa8 Kf2 e3+ Ke1 Rb6 Qf2 e2 Qf3 Bc4 Kf2 e1N Ke3 Bf7 Qe2 Nf3 Qf2 Nge4 Kd3 Nh2 Bc1 Re6 Kc4 Ng3 Ba3 Qf3 Bb2 Nd5 Kb5 Rc6 Bb6 B7e6 Ka6 Nc3 Ka7 Bd5 Bc7
4BNr1/1nPbpb1P/1q6/1RB1RP2/n2r1BB1/1npRq3/K2N1k2/Q1b3n1 b - - 0 1 illegal: No proof kernel
1K1B2r1/2p1Bb2/b2P2rb/1Bp2Q1N/rR2Pq2/2P3bn/BR2k1N1/1Rq3n1 b - - 0 1 illegal: No possible last move
3RqB2/2pbnQ1K/rqRpPP1N/r1P3B1/2k1r1NB/6b1/n1Rb4/3r2R1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 Kd2 Kf7 Kd3 Ke6 Ke4 a5 b4 g5 c4 d6 h4 g3 f4 a4 b6 g4 b7 a3 h5 a2 f5+ Kd7 b5 Qe8 f6 Ke6 b6 Be7 h6 Ra4 h7 Ra3 Qd5+ Kd7 Kf5 Qd8 Kg6 Ra4 e4 Ra8 e6+ Ke8 e5 Ra7 Bg5 Ra8 Na3 Na6 b8R Bf8 e7 Kd7 e8R Nb4 b7 Ra5 Nh3 g1B Qf7+ Kc6 e6 Kc5 Rc1 a1R Nc2 g2 Nf2 g3 Nd4 Bh2 Rhg1 Na2 Nf5 Bh6 Ng4 Bd7 Rc2 Qe7 Red8 Qe8 Bh4 Bc1 Nfh6 Bd2 Rb2 Rd1 Ra8 Ra6 b8B Ne7+ Kg7 Rf8 h8B Re1 Kh7 Re4 Bg7 Rg8 Rh1 g1Q Bf8 g2 Ra7 Qb1 Rg1 Bg3 Bg5 Ra5 Ra6 Kd4 Rc6 Ra6 c5 Kc4 Ba7 Ra5 Bb6 Ra6 Rh1 g1R Ba5 Rd1 Bc3 Ra5 Rg1 Ra6 Rc2 Qb5 Rb2 Qb6 Be5 Ra5 Bh4 Ra6 Bf4 Ra5 Nh2 Rg4 Bfg5 Rgf4 N2g4 Rf3 Qg6 Rfa3 Qh5 Ra6 Qf7 R3a5 Rc2+
3b2r1/1Np4P/R6N/1PbqBkbN/1r6/KP4rB/pn2b1nB/R2QB1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 d4 a5 Kd2 f5 Kc3 g5 Kb3 a4+ Ka2 f3 e4 f2 d6 Ke6 e5 a3 h5 g3 d7 g4 b3 g2 h6 f4 h7 g3 d5+ Kf5 e6 f3 d6 Nf6 e7 Ng4 e8N Be7 Rh2 Ra4 Bd2 Na6 Bf4 Ne3 Bg5 Nc5 Ne2 g1B Rh6 g2 Bf4 Rb4 Nbc3 Na4 Ne4 Rg8 N8f6 Nb2 Nc5 Bh2 Bg3 g1B Nb7 Ng2 Ng4 Bh4 Be5 Bf4 Rg6 Qg5 d8B Be6 d7 Bc4 Rd6 Bd2 Nf4 Be2 Be7 Be3 Kb1 a2+ Kc2 Bc5 d8B Bh2 Nh5 Bf4 Ra6 Bc1 Nhf6 Qh5 Bf8 Bcg5 Bfd6 Qf7 Nh5 Qe6 Bdf6 Qd5 Bg7 Bd8 Bh2 Bhg5 Bde5 Bc4 Be2 f1R Kc3 Re1 Bf1 f2 Beg3 Re7 B7e5 Reg7 Bh4 Be2 Kc2 Nf4 Bh3 f1Q Be1 Qg1 Kc1 Ng2+ Kc2 Nd3 Kc3 Nf2 Kb2 Nd3+ Ka3 Nb2 Bf6 Re7 Bg7 Re3 Bge5 Rg3 Nh6+
1qbBqN2/2p1RPp1/knqqR3/b1B1r2B/2N2Q2/2bP1P2/7B/r2R2nK b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 g4 hxg4 a4 d5 axb5 dxc4 h4 Kd7 b4 a5 h5 e5 d3 g3 h6 c3 h7 g2 f6 c2 f7 a4 b6 Kc6 b7 Kb6 b5 e4 Bg5 c1B Nf3 g1Q Qd2 a3 Rh6+ Ka7 b6+ Ka6 Qf4 a2 Nbd2 e3 Re6 e2 Nc4 Qg3 Nfe5 Ne7 Nd7 Nbc6 b8B Nd5 b7 Nb6 Ba7 Nd4 b8B Bb2 Rd1 a1Q Bh4 Bc5 Nf8 Qc1 Bf6 Rg8 h8R Qe8 Bd8 Bc3+ Qd2 Qe5 f3 Qb1 Kf2 e1Q+ Kg2 B5b4 Kh1 Q1e4 Qf4 Q4c6 Bh3 Ne2 Bg4 Qed6 Bh5 Ng1 Rhh6 Ba5 Re7 Rh8 Rg6 Rh6 Rge6 Rg6 Qf5 Rg5 Qf4 Nd7 Bb6 Re5 Bc5 Qbb6 Ba7 Qb8 Bf2 Nb6 Bg3 Nd5 Bc5 Nb6 Bh2 Kb5 Qh6 Bab4 Qe3 Ra1 Rd7 Ba5 Rde7 Ka6 Qf4
6NK/k1pbP3/N3p2B/2P1rBqR/3q4/1Pn1nQ1N/rnBn2BR/4q2b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e6 a4 bxa4 f5 d5 e4 dxe4 f6 Be7 fxe7 Kd7 Kf2 Kc6 Kg3 Kb7 Kf4 a5 Ke5 f5 c4 h5 d4 f4 g4 e3 c5 e2 d5 e1Q+ Qe2 h4 g6 h3 b3 h2 g7 f3 d6 a3 d7 a2 g5 a4 g6 f2 Bh6 a3 Nc3 Ka7 Nh3 Na6 Bg2 f1N Nd5 Nd2 Nb4 Nf6 g8B Nfe4 g7 Nc3 Bh7 Qg8 d8N Bd7 Bc2 Rh7 Rb1 a1Q Kf6 a2 Qf3 Qb2 Nf7 a1N Bf5 Nc2 Ra1 Ne3 Ra2 Qbc1 Bc2 Qd8 g8B Rg7 Bf5 Rg5 Bgh7 Rh5 Bc2 Re5 Bhf5 Qh8+ Kg6 Qf6+ Kh7 Qb2 Bf8 Qg5 Nh6 Qba1 Kh8 Qad1 Rf1 h1B Ng8 Qa1 Rb2 Qad1 Bh6 Qa1 Na2 Nb4 Rf2 Nd3 Nb4 Qa4 Na6 Qd4 Ra2 Nb2 Ra4 Qd5 Rh4 Qd4 Rh5 Rb8 Bg4 Rb4 Bgf5 Ra4 Bf1 Ra3 Rh2 Ra2 Bg2
B1BRN1b1/1P1bB1PN/1r1n2r1/3Q2Bp/3n3b/Kb4qR/p2P4/nq2k1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 Kd7 b4 Kd6 e4 Ke5 d6 Kd4 b6 f5 g5 c5 g6 a5 d7 h5 b7 a4 e5 c4 b5 h3 g7 h2 e6 a3 b6 f3 e7 a2 e8B f2+ Ke2 c3 Bg6 f4 Nh3 c2 Bg2 f1B+ Ke1 f3 Qe2 Nf6 Bd3 Be7 Ba6 Rh6 Ng5 Rg6 Nc3 Ne8 Nh7 Nc6 b8R Nd6 Rg1 h1B Ba3 c1N Kd1 f2 Kc2 Bh4 Kb2 Qg5 d8B Qg3 Nd5 Nb3 Qf3 Bc4 Bg5 f1Q Ndf6 Bg8 Ne8 Bd7 Rd8 Rb8 Bc8 Rb7 Re1 Na1 Re3 Qd3 Bb4 Qb1+ Ka3 Kc4 Qf5 Nd4 Bc5 Rb8 Ba8 Bhd5 Rg2 B5e6 Qf3 Rb7 Re1 Bef7 Rh1 Bd5 Rh3 B5e6 Be3 Kd3 Bg5+ Kc2 Bb4 Bb3 Qd5 Kd1 Bc5 Ke1 Bb4 Rc7 b7 Rc6 Bc5 Rb6 Bb4 N6f5 Bbe7 Nd6 Rg1+
1q3nr1/1pr2n1R/B1n4q/P2bb2B/1PbP2B1/pk4R1/2B1N1nQ/2RN3K b - - 0 1 illegal: No proof kernel
b1k5/qpR1Pb2/3q2N1/1K1P1pbQ/1R2Bn2/1rB2R1P/1N1N2nN/2r1b2n b - - 0 1 illegal: Other
3K3R/PqN2p1Q/n3R1bb/RBr1pr2/2qB3n/q1P5/3N1B1P/2qk1b1R b - - 0 1 illegal: No proof kernel
rB1Nn3/P1qp1Rb1/5n1b/k1Rq1p1B/2r5/4P3/b1qNQ1P1/1R1BqB1K b - - 0 1 illegal: No proof kernel
r5BR/Pp1NR2r/1BR3K1/1nb1r2Q/3q2br/2kP4/P1b1np1q/RN4B1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 d6 c5 d7 f5+ Ke5 h5 a6 h3 a7 h2 g5 h4 g6 f3 g7 f4 Kf5 h3 Bb2 f2 Bf6 f3 Be7 Nc6 Bf6 Nd4+ Kg5 Rh4 e4+ Ne2 e5 Ne7 g8R Nc6 e6 Nd4 e7 Nb5 Bg2 f1B e8R f2 Nf3 Qb6 d8B Bg4 Rg1 h1Q Be5 h2 Bh3 Kb4 Rg2 c4 Rh8 c3 Re7 Qd4 Bb6 c2 Kg6 c1R d3 Rc5 Bf4 Re5 Rg1 Qg2 Bg3 h1R Bh2 Qg3 Rg2 Rh7 Bg1 Qh2 Rg3 Be6 Bg4 Bb3 Be6 Bc2 Bg8 Bh3 Rg5 Bc8 Rh5 Bg4 Rh6 Re4 Ne5 Re3 Re8 Bc5 Nd7 Re5 Re7 Qhf4 Rh5 Rh4 Rf5 Qg3 Rf6 Qh2 Rc6 Nc1 Qf3 Ne2 Na3 Kc3 Qd5 Re3 Qh5 Re5 Nb1+
Q2qb1r1/pK1PN3/4RN1q/Nb4Bk/R2B2r1/3PnB2/nrr2p1P/1B2b3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 g5 b4 c5 e4 f5 d6 Kf7 d7 Kg6 e5 c4 b6 c3 b7 f3 Ke3 g3 Kd4 c2 Kd5 g2 b5 g4 b6 f2 e6 f4 Na3 g3 Ne2 g1Q Nc3 f3 Ne4 g2 Bd3 f1B Nc4 f2 Qf3 Bd6 Ra4 Na6 Kc6 Bb4 b8N Nh6 b7 Rg8 Nf6+ Nf5 Na5 Kg5 Bb2 Ne3 Bd4 c1R+ Bc2 Bc4 Bb1 Rc2 e7 Qc1 e8B g1R d3 Be1 Bf7 Rg4 Bd5 Kh6 Qg2 Kg6 Bf3 Bf7+ Kb5 Kg5 Nbc6 Rb8 Ne7 Nb4 Rg1 Na2 Ka6 Be8 Rh1 Bc3 Re1 Kh4 Re2 Be1 Qh1 Nf5 Re5 Qh6 Re6 Ne3 Kb5 Rb2+ Kc6 Ra8 b8B Ba6 Qg2 Bb5+ Kb7 Kg5 Bd6 Rc8 Bb4 Rcc2 Bd2 Qg6 Qg3 Qh7 Qb8 Qh6 Qa8 Kh4 Ne4 Kh5 Bc1 Ng2 Bg5 Ne3 Nf6+
4b1nq/pP3r1P/Pn2pR1k/1Brb1R2/3N2QB/1Rq1n1NK/R1B3n1/4b3 b - - 0 1 illegal: No possible last move, all moves rejected
1N2RN2/1K4br/1R2Br2/Qrp2r1P/n2N1P1N/1PB2r1p/Bk3qr1/n4b2 b - - 0 1 illegal: No proof kernel
1K1B4/8/Q2r1k1p/rPbRr1n1/bPP3B1/1N3r2/nq1p1B2/rR1Nr1BR b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kd3 e5 Kc4 a5 Kd5 a4 c4 h3 g4 h6 f4 h2 f6 d3 b3 d2 g5 a3 f5 e4 Ke5 d5 Nc3 a2 Nge2 e3 Bh3 d4 Bg4 d3 Rb1 a1R Nd4 e2 Bb2 Na6 g6+ Ke8 f7+ Ke7 g7 e1R+ Qe2 Nb4 Nd1 Na2 b4 Nf6 g8R Nh7 Rg5 Ra5 Nb3 Rf1 Qe3 Rf3 Qb6 Bb7 Bd4 Be4 Rh5 Ng5 Qa6 Qb6 Bg1 Qf2 Ne3 Qe2 Bf2 d1R f6+ Kd8 Bg1 Bc5 f8B Bh7 f7 Qb2+ Kd5 d2 Kc6 Bc2 Kb7 Re1 Bg7 Ke7 Bd4 Rd8 Nd1 Re5 Bdf2 Rd6 f8B+ Kf7 Kb8 Kf6 Nc1 Ba4 Be7+ Kf7 Nb3 Kg6 Bd4 Kf7 Bgf2 Kg7 Bd8 Kg6 Rf1 h1R Re1 Rf1 Bg1 Kf7 Bdf2 Kg6 Rh1 Kg7 Re4 Re1 Rd4 Kg6 Rd5 Kg7 Bc7 Kf6 Bd8+
NNQ1B3/2b1rb2/2N1nr2/Nn2Bqp1/R1Pr1P1P/1r2Bb1k/b5p1/2K3R1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Kd2 Kf7 h4 Kf6 f4 d5 c4 a5 b4 g5 b6 e5 b7 e4 b5 g3 b6 g2 Qb3 e3+ Kd1 a4 Qd3 e2+ Kc2 e1R Nc3 a3 Nf3 a2 Ba3 Re7 Qd1 d3+ Kc1 d2+ Kc2 d4 Rb1 a1R Ng1 d3+ Kb2 Nc6 b8N Rh6 b7 Nd4 Qc2 d1B Kc1 Qd5 Na4 Ne6 Nb6 Bf3 Nc6 Rb8 Na5 Qc5 Ne2 d2+ Kb2 d1B Kc1 Rg6 Nd4 Nh6 Na8 Nf7 Rg1 Nd6 Ndc6 Nb5 Be2 Bd7 Bd3 Be8 Bb2+ Qe5 Bd4 Bf7 Be3 Qc5 Qa4 Bb3 Be2 Ra2 Ra1 Rd2 Qb4 Rd5 Ra4 Rd4 Bd3 Qd5 Qc5 Ba2 Bb1 Rd7 Bd3 Bd6 Be2 Be5 Qf8 Qe4 Qc8 Bc7 Bd1 Re7 Be2 Kg7 f6+ Kh6 Bd1 Kh5 Bb3 Be8 f7 Kg4 f8B Bf7 Bg7 Qf5 Be5 Rf6 Bc2 Kh3 Bd1 Be4 Bh5 Bf3 Qe8 Rbd8 b8N Rd3 Qf8 R8d4 Qc8 Rb3 Bg6 Bg8 Be8 Bf7 Qa6 Nc5 Qb7 Ne6 Qc8
4q3/1rNb3R/2PRQ1r1/2np1r2/nB2rbR1/p1P1b1B1/k1B2PB1/2b1K2N b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 dxc5 gxh4 g4 Kf7 b4 Ke6 c3 h5 b6 a5 c6 a4 b7 a3 b5 e3 g5 h3 b6 h4 g6 e2 g7 h2 Qd4 h3 Ra2 Rh4 Rd2 Ra5 Qf4 Rf5 Nf3 Na6 b8R Nc5 b7 Qe8 Qh6+ Nf6 Rd1 Na4 Ne5 Re4 Nd3 Kd5 Ra8 Kc4 g8B+ d5 b8B Kb3 Ba7 e5 Nc5+ Ka2 Kd2 Nd7 Ne6 Bd6 Re1 Ndc5 Bg2 Bd7 Reg1 e1B+ Kd1 Bc7 Bf4 Bd2 Bh7 Bc1 Bg3 Bb8 Nc7 Be3 Re1 Bc1 Rhg1 h1R Nd2 h2 Nf1 Be3 Qe6 Bc1 Bf3 Be3 Rg2 Rg1 Bb6 h1R Ra7 Rh6 Ba5 Rg6 Bb4 Rh1 Rg1 Rhh5 Bh1 Rf7 Bf3 Rhf5 Bg2 Rc4 Bh1 e4 Be5 Bd4 Qe7 e3 Nb5 Be6 Nh2 Rf3 Nf1 Rg4 Bc2 R3f5 Ng3 Rg6 Bhe4 Bc8 Nh1 e2+ Kd2 Rh7 Rg4 Rhg7 Bh2 Bbe5 Bg2 Bf4+ Qe3 Rh7 Re7 Rhg7 Re6 Rb7 Nc7 Bd7 Re7 Kb2 Rh7 Ka2 Rb1 e1B+ Ke2 Qe5 Bg3 Bd2 Re1 Bc1 Kd1 Qe8 Re2 Kb2 Ke1 Ka1 Qe7 Ka2 Re6 Bde3 Rd6 Re4 Qe6
1K2b2k/1B1b1RN1/2PNPr1n/PpBr1n1Q/2q1R2p/4bn2/1B1Nn2N/5b2 b - - 0 1 illegal: No proof kernel
n4r2/B2R1rR1/Q1pb1nk1/rN1P1qP1/3NRR2/b7/1pPn4/1n1r1BKN b - - 0 1 legal: proof: e4 g5 b4 a5 h4 axb4 hxg5 d5 f4 Bf5 g4 Bg6 f5 dxe4 fxg6 Ra4 Bg2 Ra6 Bf1 Ra8 Kf2 f5 a4 h5 d4 e5 d5 b5 a5 h4 a6 h3 a7 c6 g7 Kf7 Nd2 f4 Bb2 f3 Ra5 e3+ Ke1 h2 Nh3 b3 Rg1 h1R Ne4 f2+ Ke2 b4 Qa1 Qc8 Nf4 Qf5 Ne6 Kg6 Nd4 Nd7 Ng3 e4 Ra4 R1h7 Rh1 Ngf6 g8R+ Rg7 Bc1 b2 Rh7 b1N Nh1 Bd6 Rd8 Nb6 Rd7 b3 Bb2 Raf8 a8N Rgf7 Nc7 Na8 Ncb5 Ba3 Bc3 b2 Bb4 Rhg8 Bc5 Rh8 Ba7 Bd6 Bh3 f1N Qa3 Nfd2 Bf1 Rhg8 Rc4 Rgg7 Qa6 Rgg8 Ke1 e2 Rb4 Bf4 Kf2 e1B+ Kg1 e3 Ra4 e2 Qc8 Nb3 Bb6 Bb4 Ne6 Ba3 Re4 e1R Ned4 Nc7 Qb7 Ra8 Bc5 Ra4 Qa6 Bb4 Ba7 Ra3 Rh8 Kg7 g6 N3d2 Rh2 Ra5 Rh6 Rf8 Rh7+ Kg8 g7 Ba3 Rh4 Bfd6 g5 Rc1 Rhf4 Kh7 g8R Na8 Rh8+ Kg6 Rh7 Rd1 Rg7+
1N2N1B1/1n1Rn2b/qpr5/3rP1n1/1krPNn1B/P2pN1b1/r1B4Q/1KR5 b - - 0 1 illegal: No possible last move, all moves rejected
qN1q1qN1/RPpb2B1/2P4q/K1RNp3/2qb4/2n2rbQ/5NPr/4k1BB b - - 0 1 illegal: Other
r2B1r2/1N4BK/5QB1/1P2bb1b/1kp1pP2/1BPr1N2/b1n2R1b/1Rqq2R1 b - - 0 1 illegal: No possible last move, all moves rejected
2R4n/2N2bR1/6p1/b1Npk2b/bN1rN1BQ/PrbP3q/2K3Pq/r3R1B1 b - - 1 2 legal: proof: f4 e5 fxe5 a5 b4 axb4 h4 Nc6 c3 bxc3 h5 Nce7 h6 g6 Nh3 Nf5 Ng1 Ng7 hxg7 Ra3 Kf2 Ra6 Ke1 Ra8 e4 Ke7 d3 Ke6 a3 h5 Bd2 d5 Rh4 b5 Rg4 f5 Bc1 c5 Rg5 c4 Bd2 f4 Ke2 h4 Nf3 b4 Ra2 b3 Nh2 h3 Be1 b2 Qc1 c2 Kd2 c3+ Ke2 Rb8 Bf2 Qc7 Nd2 b1B Qe1 c1R Nb3 c2 Kd2 f3 Be2 Nh6 g8R Bg7 Bg1 f2 Nf1 h2 Ne3 f1B Qh4 h1Q Bf3 Bf6 Rg7 Nf7 Rf5 Rb6 Bg4 Be2 Ra1 Qb8 Kc3 Qh3 Kd2 Rf1 Kc3 c1B Nc2 Rh5 Nb4 Bd2+ Kb2 Bc2 Re1 Bd7 Rf2+ Rf5 Rf4 Be8 Nc5+ Ke7 Rf3 Bca4 Kb1 Rb7 e6 Kd6 e7 Bfc3 Rf2 Rf4 e5+ Kc7 e6 Kd6 Rf3 Rd4 Rf5 Nh8 Rf8 Bf7 e8N+ Ke5 e7 Rb6 Nf6 Rb5 Nfe4 Bed1 Bf5 Bh5 e8N Qd6 Nc7 Rb7 Nb3 Rb6 Kc2 Rb5 Re2 Ra1 Rc8 Rb8 Nba6 Ba5 Re1 Bdc3 Be6 Qd7 Bg4 Qh2 Be2 Qdh3 Bg4 Bd7 Nbc5 Rb3 Nb4 Bc6 Be6 Ba4 Bg4
Bq1QR1nn/2pp1q2/2Nq2n1/B1Pk2PB/rP1N2K1/3BR3/3nrb2/2n1R3 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 a4 e5 axb5 Bb7 g5 Bf3 h3 Bg4 hxg4 exd4 Kf2 Ke7 Kf3 Kd6 c4 h5 b4 f5 e4 a5 b6 d3 b7 d2 g6 h4 g7 h3 g5 h2 Be2 a4 Qf1 d1Q Ra3 Nc6 b8R Ne5+ Kg2 f3+ Kg3 f2 Qe1 f1Q Ra2 a3 Nf3 Nf7 Nbd2 f4+ Kg4 Ra4 Nd4 f3 Nc6 f2 e5+ Ke6 Rb2 a2 Nf3 a1N Rb3 Bc5 Be3 Qd6 Bd3 Bb6 Rg1 h1N Ra8 Ba7 Bb6 Rh2 Ba5 Nh8 Qc3 Bd4 c5 Kd5 e6 Ng3 e7 Nf5 e8B Qb8 Bh5 Nh4 Qe1 Be3 Nfd4 N4g6 Rc3 Nb3 Rh1 Qb7 Re8 Qb8 Qe2 Nc1 Ra3 Bf4 Qe7 Bg3 Qd8 Rg2 Be2 Rh2 Rae3 Bh4 Ba6 Qc4 Rhe1 f1N Bb5 Nd2 Ba6 Qf1 Be2 Qf7 Bd3 N8e7 g8B Re2 Bh7 Ng8 Bb5 Nf8 Bhd3 Bf2 Ba6 Nfg6 Bb7 Qff6 Ba8 Qff8 Qe7 Qf7 Qd8
B5b1/1P1r1q1q/1q3PN1/3k1KN1/1brRN1Rb/B2p3p/r6P/n1QR2Nb b - - 0 1 illegal: No possible last move
n7/4ppn1/7B/qNbN1Pn1/BQ1B2bb/q4RNn/PqrP4/N2k1K1R b - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 b4 axb4 h4 Ra6 h5 Rd6 c5 g6 cxd6 gxh5 Bc4 h4 Be2 Be6 Bf1 Bc8 f4 Kd7 g4 c5 g5 h5 g6 b3 g7 b4 Ke2 h3 Na3 c4 Nc2 b2 Nd4 b1Q Nb3 h4 Kf2 c3 Ke2 h2 Nh3 c2 Ba3 c1B Kf2 Qd3 Rg1 h1N+ Kg2 Nh6 g8N Nf5 Rb1 Ng7 Nh6 Na6 Nf5 Nc7 Qc2 Na8 Ng3 Nf2 Ra1 Ne4 Nh1 Ng5 Qb1 Qa5 Bb2 Qe3 Bc3 Ba3 Ng3 Qea7 Rh1 Rh6 Nd4 b3 Nb5 b2 Bd4 Bc5 Bd3 Qa3 Bc2 Q7a5 Ba4 Rf6 Qe4 b1Q Be3 Qc2 Kf1 Qcb2 Qb4 Re6 Rb1 Re4 Re1 Rc4 Re2 Rc2 Rf2 Rc3 Rf3 Rc2 Ng1 h3 N1e2 h2 Nc1 Qb6 Nb3 Qa5 Rg1 h1N Na1 Nf2 Rh1 Nfh3 Bd4 Ke8 Be3 Bg4 f5 Kd7 Bd4 Kc8 d7+ Kb7 d8N+ Ka6 d6 Kb6 Ne6 Kc6 d7 Kd5 Nh5 Ke4 Be3+ Kd3 d8B Qe5 Nec7 Qeb2 Kg2 Ke2 Nd5 Qbb3 Bb6 Qbb2 Rh2 Kd1 Kf1 N7e6 Bd4 Bg7 Ng3 Bf6 Rh1 Ng7 Be3 N5e6 Ba7 Bh4 Bh6 Neg5 Bb6 Bd6 Bf2 Bc5 Bd4
Bb1N2RB/3p4/q1P1q2q/3Pnn2/1q2QR2/3NrB1B/pbb1nKP1/2k2N2 b - - 0 1 illegal: No proof kernel
BKR1Bkq1/2PR4/3B3N/pnR2b1r/2r1Q1b1/2p2r2/1PPr1b1b/4bRN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Kf2 c5 Ke1 c4 Bd2 Na6 Bc1 Nc5 dxc5 Qb6 Ra6 Qc7 Ra1 Qd8 Kf2 d5 h4 f5 e4 a5 e5 g5 e6 d4 e7 f3 Kg3 f4+ Kf2 d3 b6 d2 h5 Bf5 h6 Rc8 h7 Nh6 c6 Nf7 b7 Nd6 b8R Nb5 Qe1 d1R Qe2 Rd2 Bg2 c3 Rh2 Bh6 Rh5 Rc7 Rc8 g3+ Ke1 g4 Qe4 Kf7 e8B+ Kf8 Na3 f2+ Kf1 Bg5 Nc4 Bh4 Ne3 Qg5 Rd8 Qg8 Rd7 Rc8 Bf3 Rc7 Kg2 f1B+ Kh1 g2+ Kh2 Be1 Rg5 Bg6 Nf5 Be2 Nh6 g3+ Kh3 Bd1 Kg4 Be2 Re5 Rc8 Kg5 Bf5+ Kf6 Bd1 Rc5 Be2 Bg4 f3 Ke5 f2 Bf3 f1R Rb1 Rd4 Bf4 Rd2 Nh3 g1B c7 Bgf2 Ng1 Rd8 Bh1 g2 Ra1 Nd4 Kd6 Nb5+ Kc6 Beg4 Kb7 Rd4 Be5 Rc4 Rc1 Bg3 Bf4 Rf3 Rb1 Bef2 Rf1 Be1 Be5 Bh2 Bf4 Ra8 Bg3 Ra6 Kb8 Rd6 Ne2 g1B Bf4 Bgf2 Ng1 Rd2 Bg2 Qf7 Be5 Rg8 Bf4 Rg5 h8R+ Kg7 Bd6 Rh5 Rd8 Qd5 Rc8 Qg8 Rh7+ Kf6 Rf7+ Kg6 Rd7+ Kf6 Be7+ Kg7 Bd6+ Qf7 Rcd8 Rg3 Qd3 Re3 Ba8 Rf3 Be7 Qg8 Qe4 Bhg3 Rc8 Bh2 Bg5+ Kf8 Bf4 Rcd4 Be5 Rc4 Bd6+
n1Rn4/1R3bPr/1qN2BNp/Q5PB/BB1nn3/p4n1P/r6n/1K1Rqk2 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 g5 fxg5 b5 Ra2 bxa4 Ra3 Nc6 Ra1 Nb8 e3 d5 Ba6 d3 Qe2 d2+ Kf2 d4 Qd1 Bg7 Be2 d3 Bf1 Bd4 exd4 Be6 Nc3 Bg4 Nb1 Bc8 Ke3 Kd7 g4 Kc6 b4 Kd5 c3 Kc4 g6 f5 h3 a5 g5 e5 d5 f4+ Ke4 f3 g7 a3 d6 a2 b5 h6 b6 a4 b7 f2 d7 Qb6 d8R Ne7 Nf3 Nbc6 b8B Nd5 Bd6 Nc7 Qe1 d1N Bb2 Be6 Bb4 Bf7 Nd4 Rh7 Be2 f1N Rc8 Nd8 Nc6 Nh2 Bh5 d2 Rf1 Ra5 Rf3 Na8 Na3+ Kb3 c4+ Nc3+ Kd3 d1Q+ Qd2 Ne4 c5 Qe1 Rd1 a1N Nc4 Nc2 Rf6 Ra7 Rd6 Nd4 Rd7 a3 Re7 Rd7 B2c3 Rd6 Rb7 Rf6 Ba1 Rf2 Qc3+ Ka4 Bb2 Kb5 Ba1 Ra2 Bb2 N4e6 Kc2 Nd4+ Kc1 Nf6 Kb1 e4 N4e5 e3 Ng6 e2 Qd2 Kc4 Ba1 Ne4 Bc3 N4e6 Bf6 Nd4 Na7 Qg1 c6 e1N c7 Nef3 Nc6 Qe1 Qf2 Ne5 Qf5 Nef3 Qa5 Qa7 Rc1+ Kd3 Rd1+ Ke2 Rcb8 Rd2 c8B Qb6 Bd7 Ra2 Rc8 Kf2 Nce5 Ke2 Ba4 Kf1 Nc6
4R2N/pQ1BrpbN/4b2b/2rbk3/B4B2/Pn2KPP1/1nbN3R/bN4n1 b - - 1 2 legal: proof: e4 g5 b4 c5 bxc5 d5 Bd3 dxe4 Ba6 Qd6 Bf1 Qd8 h4 gxh4 c4 b5 Bd3 b4 Be2 Qd7 Bf1 Qb5 cxb5 Kd7 Bd3 Kd8 Bf1 Ke8 Ke2 Kd7 d4 Ke6 c6 h5 c7 e3 b6 b3 a3 h3 b7 h2 g3 b2 Qa4 h4 Qc2 h3 Qg6+ Nf6 Qg8 Nd5 Bg2 Nb6 Qg7 N8d7 b8N Na4 Bc6 Ndc5 Bd2 Rh5 Qh7 Nb3 Kd3 e2 Nf3 e1B Ra2 Rc5 Bb5 Bg7 d5+ Kd6 Bc6 e5 Nd7 e4+ Ke2 e3 Nde5 Bg4 Ng6 Re8 c8B Bd7 Bc1 Bec3 Re1 h1B Nh8 h2 Qe4 Bce5 Kd3 e2 Bg5 Bh6 Qb4 Beg7 Qb7 Bg2 Bb5 h1N Bc6 Nb6 Ba4 Nc4 Rc1 e1B Rc2 Bf1+ Re2 Bg2 Re7 Be6 Ke2 Rd8 Re8 Rd7 Kd3 Re7 Ke2 Nb6 Ke3 Ba5 Nh4 Ke5 d6 Bc3 d7 Bgd5 d8N Bd7 Ne6 Nc4+ Ke2 Bd4 Nf8 B7e6 Bcd7 Bc3 Nh7 Bd4 f3 Nf2 Nf5 Nh3 Nd6 Bc3 Ne4 Bd4 Nbc3 b1B Rd2 Bc2 Nb1 Bd1+ Kd3 Ba1 Rh2 Nb2+ Ke3 Ng1 Ned2 Bc2 Bf4+
1Q2B2R/r2B1RN1/3n4/B1N2qpR/Kp1R1bqP/4qb2/n1PbkqP1/4b3 b - - 0 1 illegal: No proof kernel
1KBR2n1/p2r4/rn1pQ1bn/P2P1bN1/2R3B1/1NbkRb2/P3r1R1/4rB2 b - - 1 2 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 Ba3 Qa5 bxa5 Bg7 Bb4 cxb4 Ke2 Bh6 Ke1 Bf8 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Ke4 b5 Kd5 h5 c4 b3 f4 d6 g4 b4 d4 b2 c5 b3 c6 e4 c7 e3 Rh3 e2 Nf3 e1R Qd2 Rh7 Qe2 Rd7 Ng5 Bg7 Re3 h3 Nd2 h4 Rc1 b1B Rc4 b2 Nb3 h2 Bh3 h1N Bf1 Na6 Kc6 h3 d5 h2 Rd4 Rd1 Rc4 Nc5 Qe1 Ng3 Qe2 Ba6 c8B h1B Qe1 Bf3 Qe2 Rd8 Kc7 Na4 Qe1 Rb8 Qe2 Rb6 Qe1 Rc6+ Kb8 Bh8 Qe2 Nb6 Qe1 Kg7 f6+ Kg6 f7 Nf5 f8R Rd7 Rd8 Nfh6 f5+ Kf6 Qe2 Rd2 Qe1 Bbe4 Qe2 Ke5 f6 b1R f7 Re1 f8R Rc2 Rf6 Rb2 Rg6 Kf4 Nh7 Bc3 g5 Bb7 Rg7 Ba6 g6 Rd2 Ng5 Rc2 Qg2 Rce2 Qg4+ Ke5 Qe6+ Kf4 Rd4 Bd3 Rc4 Bc2 Re7 Bd3 g7 Bc2 Rd3 Bb1 Rd2 Ke3 Rc2 Kd3 Rb2 Nf6 g8B Bf5 Bf7 Nfg8 Bh5 Na8 Bg4 Ra6 Rc2 Nb6 Rh7 Nf7 Rh3 Nfh6 Rg3 Bg6 Rg2 Bf5 Re4 Bg6 Re3+ Kc4 Rc1 Bbf5 Re5 Kd3 Re4 Bh8 Rcc4 Bc3 Re3+
4nq2/3R1Qpr/bKPrN2p/n2B1P2/5rB1/4R1Rp/b2b1kP1/2n1RNN1 b - - 0 1 illegal: No proof kernel
2b2N2/N3QpNp/2RnB1RK/8/1PnkN1P1/bqbP4/rrp1n3/BB4r1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 g4 Ke5 b4 c5 e4 a5 b6 c4 d6 c3 b7 h3 d7 h2 Nh3 a4 Nf2 a3 Bd3 a2 Qe1 Nf6 Bb2 Ra6 Na3 Qc7 d8N Nbd7 b8N Qc4 Bb1 Kd4 e5 Bg7 e6 Qb3 d3 Re8 e7 Nb6 Ne4 Nc4 Nd7 Ra8 Rg1 h1N Nf8 Ng3 Rh1 Ra5 Rh6 Ne2 Rg6 Ra8 Ng5 Ne4 Nde6+ Kd5 Qh4 Ned6 Ne4 Bh6 Ng7 Kd4 Bc2 Ra5 Rc1 a1B Bb1 Bg5 Kg2 f3+ Kh3 f2 Nb5+ Ke5 Na7 f1R Rc2 Bc1 Qg5+ Kd4 Kh4 Ra3 Kh5 Rg1 Kh6 Ra6 Nh5 Ra2 Ng7 Rd8 e8B Rd7 Ng3 Re7 Ne4 Re5 Bb5 Rf5 Bd7 Rf2 Ba3 Bab2 Bf5 Bd2 Be6 Bbc1 Bb2 Rfg2 Ba1 Ba3 Nh5 Nf4 Qd8 Nb6 Nef6 Be1 Rc1 Rgb2 Qe7 Ne2 Ne4 Bd2+ Qg5 Be1 Ng7 Bd2 Rf1 Be1 Rf5 c2 Qe7 Bc3 Rc5 Nbc4 Rc6
1nN1b3/P1nQ4/1p1p1bbB/qNP2r2/R1K3P1/1BN2N1r/B1r3pn/2k3R1 b - - 0 1 illegal: No possible last move
1R1r4/pb2N1b1/1NBp1Rb1/1K1RN2P/2n2QnP/6Pr/2Rrn1pq/4Bk2 b - - 0 1 illegal: No proof kernel
4bq2/8/QrR2RqN/2r1b1N1/2pPqR1k/4p1np/B1N3PP/1b1nKNB1 b - - 0 1 legal: proof: e4 b5 c4 f5 f4 fxe4 a4 d5 axb5 g5 cxd5 gxf4 d4 Kf7 b4 Kg6 d6 Kg5 b6 e5 b7 a5 b5 h5 b6 c5 d7 h4 Bb5 c4 Ba4 h3 Ke2 e3 Qb3 e4 Bc6 a4 Qd3 a3 Qd2 a2 Qa5+ Kh4 Nd2 f3+ Ke1 f2+ Kf1 Na6 b8N Nb4 b7 Bd6 Rb1 a1Q Ke2 f1B+ Ke1 e2 Qa6 Rh6 Ba4 Nf6 Nc6 Na2 b8R Nc3 Nb4 Be5 Bb3 Nd1 Nc2 Nh5 Rb6 Qf8 d8N Bd7 Rc6 Rc8 Ba2 Be8 Rbb6 Ng3 Nf7 Qb1 Rf6 Rc5 Ngf3+ Kh5 N3g5 Kh4 Rbc6 Qb6 Rc8 Qe6 Rc7 Qg4 Rf4 Rb6 Rf6 Qh5 Rcc6 Qg6 Nh6 Qgg8 Nb1 Qg6 Be3 Qe7 Bg1 Qf8 Kd2 e1Q+ Kc1 e3 Nd2 Bd3 Nf1 Qe2 Rf4+ Qg4 Rff6 Nc3 Rf4 Nb5 Rff6 Q4e4 Kd1 Nc3+ Ke1 Nd1 Bf2 Qf4 Na1 Qff5 Nd2 Qff7 Rf1 Qf8 Bg1 Bb1 Nc2 Qd3 R1f2 Qdf5 Nf1 Qe4 R2f4+
q1RK4/n2B2n1/4R3/NPRb1n1p/1QrP1k2/N2pP3/pb2q1r1/1R1bBB2 b - - 0 1 illegal: No possible last move, all moves rejected
bN1n3B/1q1NBR2/kr1bR3/PR2PNpK/1pn3N1/2b3r1/1Pp2q2/2q3Q1 b - - 0 1 illegal: No proof kernel
B2Rnn2/R6q/K1bR1N2/P1qp1pBb/1N1P2pr/2k2P2/q2r1Bn1/2QB4 b - - 0 1 legal: proof: d4 c5 g4 cxd4 b3 a5 b4 axb4 e3 h5 gxh5 e6 Bh3 d3 Bg2 Bc5 Bf1 Bd4 exd4 Kf8 Nf3 Ke7 Ng1 Ke8 Kd2 Ke7 a4 Kf6 c4 b5 h4 d5 c5 g5 c6 b3 Kc3 d2 Kb4 b2 h6 e5 h7 e4 h5 e3 h6 e2 c7 e1N Nf3 Ng2 Ne5 Bb7 c8B Qc7 Nc6 Nd7 Be2 Nf8 Nc3 b1Q+ Kc5 b4 Kb5 b3 Ne4+ Kg6 Nb4 b2 Nf6 Qa2 Qe1 b1Q Bd1 Qcc4+ Kb6 Bc6 Bb7 Ra5 Ba8 Kf5 Rh5 Rb5+ Ka6 Qc5 Rh4 Qd3 Re4 Qh3 Re6 Qh1 Rd6 Kf4 Ne4 Nf6 Qg1 Ne8 Nf6 Rb7 Qf1 Re7 Qc4 Re2 Qc2 Rg8 h8B Qh2 Bg7 Rh8 h7 Qh1 Bh6 Qh5 Ng4 f5 Nf6 Qh4 Bb2 Kf3 Bc3 Qh5 Qc1 Qg6 Bb3 d1B Be1 Rd2 Bc2 Ke2 f3 g4 Bg5 Qh5 Bb3 Qh3 Nc2 Kd3 Bf2 Kc3 Nb4+ Bc2 a5 Rg8 h8R Qh7 Rb1 Rg6 Ba4 Rh6 Rg8 Rh2 Rg7 Rh4 Ra7 Ng7 Be1 Bd7 Nc6 Be8 Bf2 Bh5 Rb8 Ne8 Rbd8 Qf7 Nb4 Qh7 Qg1 Bd1 Bb5 Bb3 Be2 Ba4 Qb1 Bd7 Bd1 Bc6 Qc1+
k4q2/1r3rn1/bq4Pr/2QNpRbB/K2P2B1/3RnPp1/NB1pR3/1q3B2 b - - 0 1 illegal: No proof kernel
3RNr1N/R2B1r1R/1Q4P1/p1n1kbP1/pq5P/2B2N2/1b1rp1Kn/1nRq4 b - - 0 1 illegal: No proof kernel
N1R1rqn1/n2K4/1b3pNb/1Bpp1P2/1k1nN3/1PR4b/1R1B1P1r/Qq5N b - - 0 1 illegal: No proof kernel
KB2R3/1Q1B3p/p1nRNrP1/2qRp1n1/bbk4P/r1R1B3/2rbP2q/7N b - - 0 1 legal: proof: a4 d5 c4 g5 cxd5 b5 axb5 g4 d3 g3 Kd2 gxf2 Qe1 fxe1Q+ Kc2 Qf2 Bf4 Qg3 Bc1 Qe1 Kb3 Kd7 Ka4 Kd6 g4 Kc5 h4 e5 b4+ Kd4 Ka5 c5+ b6 f5 g5 f4 d6 a6 d7 c4 g6 f3 Ra3 f2 Be3+ Kd5 d4 c3 b5 c2+ Nc3+ Kc4 d5 c1B d6 Qe7 d8R Bb7 d7 Ra7 Bh3 f1R Nf3 Qg7 Ng5 Qf2 Nd1 Bc6 b7 Nf6 Kb6 Qh2 Nf2 Kb4 Kc7 Be7 b6 Qf8 Re8 Ba4 d8R Ne4 Be6 Rg8 Bc8 Rg7 Ne6 Ng5 Rad3 Ra8 R3d5 Bd2 Rg1 Kb3 Nh1 Ra1 Rc1 Rf7 Rc4 Rf6 Rcc5 Nc6 b8Q Nd4 Kb7 Ra3 Rc1 Beb4 Qa7 Qc5 R8d6 Qc4 Bd7 Rc8 Qb8 Rc5 Ka8 Nc6 b7 Qb5 Qc7 Rc4 b8B Qc5 Qb7 Rc3 Rb1+ Kc4 Rb3 Rc2 Rc3+
R2Q2bq/n2n2p1/r4BB1/2p2K1N/NP1kN2p/1Pr1q1b1/2RPrb1B/3B4 b - - 0 1 illegal: No proof kernel
n1rbbB2/RQ3pKb/3qr3/1q3pR1/P4nN1/4r1RP/2P3pN/N2N1B1k b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e6 b4 axb4 f5 exf5 dxc5 Qg5 Qd2 Qf6 Qd1 Qd8 Kf2 Ke7 Ke3 Ke6 Kd4 b5 e4 d5 a4 g5 h6 b3 h7 g4 e5 b2 h3 b4 c6 g3 c7 g2 Be3 b3 Qe2 Na6 Qg4 Be7 Bf2 Qd6 Ra3 Bd8 Qe4 Bd7 c8N Be8 Nb6 Rc8 Nf3 Ne7 Nd7 Nc7 Nc3 b1Q Nd1 b2 Nh2 Ng6 Rg3 Na8 Bg1 Rf8 h8R Nf4 Rh5 Rh8 Qf3 Rh6 Rhg5 Rg6 Qb3 Rh6 Qb7 Rg6 Ke3 d4+ Kf3 d3 Bc5 d2 Rg1 Qa6 Bf8 Qc6+ Ke3 Kd5 Nc5 Re6 Qd7+ Qd6 Nb3 Rh6 e6 Ke5 e7 Re6 Nf2 d1B Na1 Be2 Nd1 Bh5 Qb7 Bg6 Rh1 Bh7 Kf3 Bb5 e8N Bd7 Nf6 Be8 Bd3 Kd4 Rf1 Ke5 Rf2 Kd4 Rd2 Ke5 Nfg4+ Kd4 Ndf2 Qf1 Re2 b1R Re5 Rb4 Ra5 Rb3 Ra7 Qb1 Nd1 Ra3 Kf2 Qb5 Bf1 Rac3 Rf3 Rd3 Kg3 Rde3 Kh4 Nd5 Rf2 Ke4 Re2 Kf4 Kh5 Kg3 Rd2 Bb6 Rd3 Bd8 Rg6 Nf4+ Kh6 Qc4 Kg7 Qb5 Nc3 Qb8 Rg5 Qd6 Nf6+ Kf2 Nfg4+ Kg1 Nd1 Kh1 Rc3 R3e4 Rf3 Re3 Rg3
2k1n2b/1Bb1Pn2/6nq/RK6/P1PR3B/pb2pB1r/QpqRN1r1/3R2N1 b - - 0 1 illegal: No proof kernel
q1BNQ2b/1R1KPq2/nR1n2r1/2r1pPBp/1B1Rp2R/7q/4nb1P/N1k5 b - - 0 1 illegal: No proof kernel
3R2RR/rNb1p1n1/B2r3B/2PPK2b/3N4/Qq1q3p/N1P2qp1/1N1k1rn1 b - - 0 1 illegal: No proof kernel
b1BR1r1r/B2qp3/1nqN2pq/2b2B1N/2p5/n1Q3RN/P4PP1/3kNbK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 fxe4 h5 d5 cxd5 g6 h6 Qd6 Qf3 Qf6 Qd1 Qg7 hxg7 Bh3 Bb2 Bg4 Bc1 Bc8 d4 Kd7 d6 Kc6 d7 Kd5 d8N c5 Bf4 b5 Ne2 Kc4 d5 h5 d6 b3 d7 e3 Bd6 b2 Qa4+ Kd3 Qa3+ Kc2 Nf7 c4 d8N b4 Qa6 b3 Be5 h4 Qb7 h3 Qb4 h2 Nh6 Na6 Ng4 Nf6 g8B Nc7 Qb8 Nd7 Qb4 Bg7 Bd6 Bb7 Ng1 e2 Nh3 Nb6 Nf6 Nb5 Bb8 Na3 Nd2 b1B Ba7 b2 Nf7 Rf8 Nh5 Ba8 Nf3 Bd4 Nd6 Bc5 Be6 Kc1 Bc8 Kc2 Rg1 h1Q Qa5 Qh2 Rh1 Qf4 Qb4 Qh6 Qa5 Kd3 Rh2 Bc2 Rc1 b1Q Rh1 Qb5 Rh2 Ba4 Rd1+ Kc2 Rd5 Kc1 Qc3+ Bc2 Rg5 Qd7 Rg3 Qf4 Nhg5 Qc6 Rh4 Qg4 Nh3 Qgd7 Rd4 Kb1 Kd2 Bd3 Ke3 e1Q+ Be2 Qg1 Ne1 Qf1 Bg4 Qh1 Be6 Bf1 Bf5+ Nc2+ Kf4 Kc1 Rg5 Qg1 Kg3 Qe6 Nb7 Bd3 Rd8 Qed7 Nf3 Qe1 Kh2 Bf1 Rg4 Qe3 Kg1 Kd1 Nd6 Na3 Ne1 Qh6 Rg3
4b1q1/K1pp1R1r/bR1r3n/PbRN3Q/4N1Bk/B2BP3/p1P1r1n1/2q1R3 b - - 0 1 illegal: No proof kernel
K1b1rBN1/1PNr1n1R/bq1R4/1q2qRQ1/p7/n2pPN2/pb2k1P1/5N1B b - - 0 1 illegal: Other
QNrq1q2/Rp3rP1/b5Kn/q2P2b1/p2NRB2/3p3R/P2kRB1n/2N2b2 b - - 0 1 illegal: No proof kernel
5Q2/p1n2qNb/PBq2pn1/NRp1BBN1/2r1r3/2P2N1k/K1P3bq/6Rr b - - 0 1 illegal: No possible last move
1RNr2rq/n4krB/QP6/R5R1/bKn2p2/pP3Pbp/5BrB/2rN1B2 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 cxd5 exd4 Kd2 h5 e4 c5 g4 a5 b6 f5 g5 d3 Kc3 d2 g6 h3 d6 c4 e5 a4 f3 h2 b3 a3 g7 h4 e6 Nc6 e7 Kf7 e8R Nf6 d7 Rg8 Qe2 d1R Be3 Na7 Nd2 Ng4 Nh3 Ne5 Nf2 Bd6 Nde4 Rd2 Nd1 h3 Rg1 h1R Rg5 Bc7 Bf2 Rg1 Kb4 c3 Rc1 c2 Qa6 Nc4 Re5 Qf6 d8B Bd7 Ra5 Bg3 Bc7 Ba4 Bf4 Rad8 Nd6+ Ke7 Nc8+ Kf7 Bb8 Qh6 Bc7 Qh8 Bf4 Bh4 Bh2 f4 Rb1 c1R Ra1 Rc3 Rc1 Bg3 Rc2 R2d7 Re2 Rc1 Re1 Rgf8 Re8 Rg2 g8B+ Kf6 Bc5 Rg7 Bh7 Rfg8 Bf2 Kf7 Ne7 Rd4 Rb8 Rdd8 Nc8
b2N4/5nN1/Q1RNNn2/3p2q1/rbP3Pp/1r2n1pK/1kB3RP/1n2rB1R b - - 0 1 illegal: No proof kernel
n2B4/2BR2nK/1r2pQBb/2q1Pr1P/RPr4n/N1p2b2/1kpr2R1/6BN b - - 0 1 legal: proof: f4 b5 c4 h5 a4 d5 axb5 dxc4 g4 g5 fxg5 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 h4 Kb4 e4 c5 d4 a5 d5 f5 h5 g3 b6 g2 b3 c3 e5 a4 b7 c4 d6 e6 g6 c2 d7 a3 g7 c3 Bb5 a2 Qe1 Qe7 d8B Ra6 Be8 Qc5 Kg5 f4 Kg6 f3 Ne2 g1N Ba4 f2 Nd2 f1R Ne4 Nh6 g8R Nd7 b8B Nf3 Nd2 Nb6 Be8 Bb7 Ng3 Na8 Nb1 Rb6 Qf2 Nf5 Na3 Bh6 Be3 Ng7 Bbc7 Rh7 Rd1 a1R Rd7 Rad1 Rh4+ Rd4 Bf7 Rc4 Nh1 Rd1 Qf1 Rd2 Bg1 Rh8 Rg4 Bd5 Rg2 Bc6 Re8 Rf8 Kh7 Nh4 Bg6 Rf5 Rh8 Bf3 Rf8 Ka5 b4+ Ka4 Rg8 Kb3 Rf8 Be4 Qf4 Kb2 Qg5 Bc6 Qf6 Be4 Be7 Bb7 Rb8 Bf3 Rb7 Bg4 Ra7 Be2 Bed8 Bf3 Ra4
R3rnRR/bB3BP1/1nNK1n2/4pN1p/3b1nQP/2k5/1RqrP1p1/N2b4 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 f6 g6 Qc7 g7 Qd8 g4 Qc7 g5 Qb6 g6 Qd8 Bg5 fxg5 Kf2 h5 Kg3 a5 b4 e5 h4 Ke7 c4 Ke6 c5 Kd5 b6 Kc4 c6 d5 b7 d3 b5 g4 c7 d4 b6 d2 Bh3 a4 Ra2 a3 Qe1 d1N Bg2 d3 Bc6 d2 Bd7 Nb2 Nf3 d1N Nbd2+ Kc3 Qg1 Na4 Nb3 Nf2 Rb2 a2 Be6 a1B Nfd4 Nd3 Bf7 Nd7 b8N Nf4 b7 Bc5 Nf5 Ba7 Nc6 Nab6 b8R Ngf6 g8R Nf8 g7 Be6 c8B Qd2 Bb7 Qc2 Kf2 g3+ Ke3 Bd5 Qg2 Bc4 Qh3 g2 Qg4 Rh6 Rd1 Bb5 Rdd8 Ba4 Rbc8 Ne4 Rh8 Rd6 Rb8 Nf6 Rdc8 N8g6 Rcg8 Rd2 Rbf8 Re8 Kf3 Re6 Ra8 Re8 Ra2 Bb2 Na1 Nf8 Ke3 Qc1 Kf3 Bd1 Ke3 Ba3 Rb2 Bc5+ Kf3 N6h7 Ke4 Bd4 Rb5 Qb2 Rb4 Qc1 Rb2 Nf6+ Kf3 Nf6d7 Ke4 Nd3 Qf3 Qb1 Qg4 Qc2 Nfe7 Nf6+ Kf5 N8d7 Ke6 Nf8+ Kd6 Nf4 Nf5
2r2NnR/b1N1pBR1/1QqBB2b/6k1/r1R1bb2/2PPnBp1/4K1pP/6r1 b - - 0 1 illegal: No proof kernel
6nb/qBRNp1n1/2rPRNrN/1P6/n1k5/1p3bR1/2p1P1bQ/1BbRK3 b - - 0 1 illegal: No proof kernel
1r1n2N1/n1KP3p/q3Q1bN/rRp2pr1/bN5b/1P3r2/1PB1R1B1/4Bk1N b - - 0 1 illegal: No possible last move, all moves rejected
b1N2K2/1rnPp3/RN1rP1B1/2b2NPq/4pNn1/8/Rr1r2bp/1Qk1B1B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 d5 axb5 g5 cxd5 Bb7 h4 gxh4 e5 Ba6 Qf3 Bc8 Qe4 fxe4 Ke2 Kd7 Ke3 c5 Kf4 a5 Kg5 h5 Kg6 h3 Kf7 h4 g4 a4 f4 c4 d4 c3 b4 h2 g5 c2 d6 h3 b6 Kc6 d7 Kd5 e6 a3 f5 a2 b5 Rh4 f6 Bh6 b7 Qa5 d8Q+ Bd7 b6 Qc5 Na3 Qc6 Be3 c1R Nb5 Rc4 Nf3 Bg7 Be2 Ra7 Bg1 Rb4 Nd6 Bh8 Nc8 Nh6+ Kf8 Rb2 f7 Na6 b8B Ng4 Bg3 Rb7 Be1 Nc7 Bd1 Kc4 d5 Kd3 d6 Qc2 Nd4 Bc6 Nf5 Qe2 Ba4 Bd5 Be8 Kc2 Qd7 Bd4 Qd8 Ra7 b7 Bc5 b8N Ba8 Nd7 Rab7 Ndb6 Rh7 Qd7 Qd1 Qb5 Rh5 d7 Rh6 Rb1 a1R Qf1 Ra4 Ra1 Ra6 Ra2 Kc1 Qd3 Rd2 Kg7 Qe2 f8N Rf6 Ng6 Qf3 Nd5 Rd6 Ngf4 Rf8 Bg6 Re8 Ncb6 Reb8 Nc8 Rbb2 Ndb6 Rb7 Kf8 Qe2 Be3 Qf3 Rf1 h1B Bg1 h2 Ra6 Bg2 Rf2 Qh3 Re2 Qh5 Rf2 Rd1 Re2 Rb4 Rb2 Rd2 Rba2 Rbb2 Qb1+
3NB3/k1PR2pN/nPBb4/2r2P2/2B3pq/1RK2b2/rQ1pr3/1rn1R1Bn b - - 0 1 illegal: No possible last move, all moves rejected
b1N1nQ2/rbp2PN1/Bn3k2/2Br3R/R5R1/P1Kn1p1R/p4P1b/4Bq1n b - - 0 1 illegal: No proof kernel
N1b2r2/RNp1P1QB/5bRr/1q1n1P2/2n3p1/4rB1p/1Bb2KP1/r2k1N1B b - - 0 1 illegal: Other
3b3r/1bpP1nKB/1q4Nr/BN3R1R/1n1Rp1k1/1Q2b3/pn1P2PR/3nN3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 Ke2 Kd7 Ke3 e5 b4 h5 f4 a5 f5 a4 d6 h3 b6 h4 f6 Ke6 f7 Kf5 b7 a3 d7 h2 b5 h3 b6 a2 Bb2 Bc5+ Bd4 Nc6 b8R Ra6 f8N Bb7 Qb3 Kg4 Na3 Nh6 Ng6 Qf6 Nf3 Nb4 Ne1 Nf7 Nb5 Be7 Rb1 Bd8 Bd3 Qd6 Rf1 h1N Bc3 h2 Rf5 Nf2 Rc8 h1N Rh5 Bf6 Rf8 Bd8 Bc2 Nfd3 Rb2 Bc6 b7 Nhf2 b8R Bb7 Rb1 Qc6 Ra8 Rb6 Ra4 Nb2 Rd1 Nd6 Rff5 Nf7 Bd4 Ra6 Bb6 Qe6 Ba5 Qb6+ Ke2 e3 Be4 Nd5 Rd4 Nb4 Rc1 Nfd1 Rh2 Ra7 Rc6 Ra8 Rfh5 Rc8 Rf6 Rh6 Rff5 Ra8 Bd5+ e4 Be6 Nh8 Bg8 Nf7 Bh7 Nc3+ Kf1 e2+ Kf2 Rc8 Nd3 e1B+ Ke3 Beh4 Ne1 Qd6 Rdd5 Ncd1+ Kd4 Qa6 Rd6 Bhg5 Rdd5 Nd6 Ke5 Be3 Rd4 Qb6 Qc3 Bf6+ Ke6 Rh8 Qb3 Bfg5 Ke5 Bd8 Ke6 Ne8+ Kf7 Nd6+ Kg7 Nf7 Rc5 Re8 Rce5 Rh8 Ref5
B4n1q/1pnn2Q1/kb1PR2N/1b3PB1/n4N2/prNr2P1/Kp1B2r1/N6R b - - 0 1 illegal: No proof kernel
2rk3b/np1pQ3/n2K2nP/1P1B1bp1/1B1nNNr1/B1P1R2q/4r3/2B1R1R1 b - - 0 1 illegal: No proof kernel forced: wxLB
2k5/pNb3P1/1p2br1q/R1BN1n2/p2PQnK1/1Nn2RP1/3r2B1/2b1B1Bb b - - 0 1 illegal: No proof kernel
2b1q1Rb/pNP4p/1R3P2/1r2rBB1/n1p3QN/3PbR2/3n2N1/1rR1bk1K b - - 0 1 illegal: No proof kernel
2NrB1N1/2RB4/1bbN1P2/1rbp2kq/1Rpq2nN/2PQ1bPp/1K1B3n/8 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 h4 gxh4 d4 e5 dxe5 fxe4 Kd2 Kf7 Kc3 Kg6 f4 h5 b4 c5 e6 d5 g3 a5 f5+ Kf6 e7 c4 e8B e3 b6 e2 b7 e1B+ Bd2 a4 b5 a3 b6 a2 Kb2 h3 Na3 h4 Rb1 h2 Bh3 Nd7 b8N Ne5 b7 Bf2 Be1 Bb6 Nd7+ Kg5 b8N Nf6 Nc6 Ra5 Qd3 Neg4 Na7 Bb7 N3b5 Bfc5 Nc8 Bc6 c3 a1Q+ Kc1 Qa4 Nbd6 Rb5 Rb4 Qa7 Kb1 Qe7 Kb2 Qf7 Nf3+ Kh5 Nfe5 Kg5 Ng6 Rf8 Rf1 h1B Rf2 Bf3 Re2 Bd8 Re7 Nh2 Bg4 h3 Nh4 Qh5 Rh7 Ne4 Nf6 Nf2 Ng8 Ba5 f6 Bab6 Bgd7 Nfg4 Bf7 Rd8 Bfe8 Qb8 Bf5 Qa8 Rc7 Qa4 Bfd7 Qd1 Bf2 Qg1 Be1 Qd4 Bd2+
2B1B3/1r3bN1/2p3Q1/2rP3p/rPRR1Bnn/kPRp4/3b1B1q/K2Nr2q b - - 0 1 illegal: No proof kernel
B3N2k/N1q2q2/1pBQq1rp/2p2R2/1PP1Pq2/BbK1n1N1/Rr2N1n1/b7 b - - 0 1 legal: proof: h4 a5 b4 g5 e3 gxh4 Qf3 e5 d3 f5 Qd5 a4 Qb3 f4 exf4 e4 dxe4 axb3 Kd2 Kf7 g4 Kg7 a4 d5 g5 c5 g6 h6 a5 b6 c3 h3 f5 b2 f4 d4 a6 d3 a7 h2 Na3 b1Q Ra2 Nc6 Nb5 Qc7 Ne2 Be6 Ng3 Nd4 Ba3 Ne7 f6+ Kg8 g7 Ng6 f5 Qb3 Be2 Nf4 Rf1 h1Q f7+ Kh7 g8N Bg7 f8Q Qf3 f6 Nc2 f7 Ne3 Qe7 Nfg2 Qd6 Qf4 Bg4 Be5 f8N+ Kg7 Nf6 Rg8 Ne8+ Kh8 Rf2 Rg6 Bh3 Bf7 Bd7 Qe6 Bc6 Rd8 a8B Bf6 Kc1 d2+ Kb2 d1Q Na7 Qdd5 Rf3 Bg8 Rf2 Qef7 Ne6 Rd7 Nd4 Qde6 Nde2 Be5 Qe7 Rd3 Qd6 Rd2+ Kc1 Rb2 Rf1 Rb1+ Kd2 Rb2+ Kd3 Qh4 Rf6 Qf4 Rf5 Qh7 Qd7 Rb3 Qe7 Qec8 Rf6 Rb1 Nh1 Bb3 c4 Qe6 Rf5 Qhf7 Nhg3 Ba1 Qd6 Rb2 Kc3
2r1n2N/KRN3p1/2k2BR1/1qPbBP1n/2Bp1nPb/3Q3N/pr2q3/4n1B1 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 h5 d4 cxd4 Qg4 f5 exf5 h4 Qf3 Na6 g4 Nb8 Qg3 hxg3 Kd2 a5 Kd3 d5 h4 Kd7 f4 e5 b4 a4 c4 g2 b6 a3 h5 a2 b7 Nc6 b8Q Qh4 h6 Qe7 c5 Qd6 h7 Qe7 b5 Na5 f6 Nc4 b6 Bb7 f7 Nf6 f5 Qe8 Na3 Nh5 Qd8+ Kc6 Nh3 g1N Nb5 Be7 f8B Bh4 Rb1 Rc8 Be3 Nd6 Nc7 Ne2 Bg1 Qd7 Rb2 Ne8 Be7 Ba8 b7 e4+ Kc2 e3 Kb3 d3 Ka4 d2 Ka5 d1Q Ka6 Qc2 b8B Nef4 Rb7 e2 Bf6 e1N Bc4 Qe2 Ka7 Rg8 h8N d4 Qe7 Rf8 Qe3 Rf7 Qd3 Re7 Rh2 Re3 Qd2 Rb3 Qd3 Rb2 Na6 Qd8 Bbe5 Qa5 Rh1 Qb5 Nc7 Kd7 Rb6 Bd5 Rb7 Kc6 Rh2 Qd1 Re2 Rb1 Rb2 Qe2 Rb4 Rb2 Ra4 Nc2 Ra6+ Kd7 Be7 Ne1 Rf6 Neg2 Rg6 Ne1 B7f6 Kc6 Qf3 Kd7 Qe4 Kc6 Qd3
1b1N2n1/3r1p1q/2q4p/B1b2B1R/P1BP1PR1/1q5q/1Rp1RnQ1/1rkN2K1 b - - 0 1 legal: proof: c4 g5 d4 a5 h4 gxh4 b4 d5 cxd5 axb4 Nc3 Bf5 Nb1 Bd3 exd3 Qc8 Qe2 Qd7 Qd1 Qd8 g4 Kd7 a4 Kd6 g5 e5 g6 c5 g7 b5 f3 c4 Kf2 b3 Nd2 e4 Ne2 h6 Ba3+ b4 Nc3 h3 Bg2 h2 Qg1 e3+ Kf1 e2+ Kf2 b2 Nd1 b1Q Nb3 c3 Bf1 Qb6 Na5 Na6 Qg2 Rb8 Nc6 Nc5 Ra2 b3 Nd8 b2 Bb4 Qc6 Ba5 Be7 Rg1 h1Q f4 Qh3 Rh1 e1B+ Kg1 Ne4 Rh2 Nf2 Be2 Qf5 Rh5 Qh3 Bf1 Qc2 Be2 b1Q Rb2 Qb3 Bf1 Nf6 g8B Bf8 Bh7 Ng8 Re2 Rb7 Bg6 Rd7 Bf5 Bg7 Rb2 Be5 Be2 Bd2 Bf1 Be3 Be2 Ke7 d6+ Kf6 d5 Bc5 d4 Qe4 Bc4 c2 Bg4 Qh7 Bf5 Rb7 d7 Bb8 d6 Ra7 Ne6 Rc7 d8R Rd7 Bg4 Kg6 Re8 Kf6 Rd5 Kg6 Bf5+ Kh5 Nd8 Kh4 Qf1 Kg3 Re2 Kf3 Bfd3 Nf6 Rh5 Rf8 Bf5 Ng8 Re6 Re8 Rg6 Re3 Rg4 Rd3 Qg2+ Ke2 Bc7 Kd2 Bb6 Ra7 d7 Kc1 Ba5 Rg3 Ne6 Rc3 d8R Rd7 Re8 Rf3 Nd8 Re3 Bf1 Re1 Re2 Bc7 Re4 Bb8 Nc3 Kd2 Re3 Ra1 Nd1+ Kc1 Bc4 Rb1 Re2
K7/1r1N1ppq/1rB2Q2/kN1Rr1P1/6nB/p1P1b3/1N1PB1n1/qb1Rr2B b - - 0 1 illegal: No proof kernel
1qQ5/knRpP2R/Rrp5/6n1/1B1b3q/1Np3qP/B1b1PrN1/2q2RNK b - - 0 1 illegal: No possible last move, all moves rejected
NR2k1Bb/p1rR3N/RP3p2/r2q1P1q/4n1Q1/2p3b1/1PnNbB2/2K1bR2 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 h5 a4 hxg4 axb5 d5 cxd5 exd4 Kd2 c5 h4 g5 e4 c4 f4 d3 d6 g3 e5 g2 h5 g4 b6 g3 h6 Ba6 e6 Nf6 h7 Nc6 e7 Rc8 Nf3 g1B Ng5 g2 Qg4 Nd4 f5 c3+ Kd1 d2 Bc4 Bf2 Rf1 g1B Bd5 Bc4 Ra6 Bg7 Be6 Rf8 h8R Ne4 Rh7 f6 Bg8 Bh8 Rg7 Rc6 Nh7 Rc5 Rf7 Bh2 Rg7 Kd7 e8N+ Rf7 Nc7 Be1 Na8 Re7 Rf7 Ke8 Rg7 Ree5 Rb7 Rc7 d7+ Ke7 Qh4 Ra5 Qg4 Qe8 d8R Bhg3 Rd5 Qh5 Rd7+ Ke8 Na3 Bb5 Nc4 Ne6 Kc2 d1Q+ Kb1 Qb3 Be3 Nd4 Nd2 Be2 Bf2 Nc2 Kc1 Qd5 Rb8+
qb1krb1R/p2q2pQ/6PP/4P2p/1B3N2/1K5R/rNn2qnR/N2q1B1N b - - 0 1 illegal: No proof kernel
R2NKb1q/1rr1b2p/B1P3nB/r4bQ1/P3pR1B/R3P3/2rprN1R/3k4 b - - 0 1 legal: proof: g4 a5 d4 g5 b3 f5 b4 axb4 d5 Na6 h3 Nc5 d6 Ne4 gxf5 g4 h4 Ng5 hxg5 cxd6 Rh6 d5 Rh1 d4 Kd2 Kf7 Kd3 d5 c4 b5 f4 e5 a4 e4+ Kd2 b3 g6+ Kf6 g7 g3 c5 d3 Kc3 d4+ Kb4 d2 Nc3 g2 Ra3 b2 Na2 d3 Rh2 Ne7 g8R Ra5 Nh3 g1B Nf2 b1R+ Qb3 Ra1 Qd5 d1R e3 Ng6 Bd2 Rac1 Be1 d2 Be2 Rc2 Qe5+ Kf7 f6 Bf5 Bf1 Be7 Be2 Qf8 Bf1 Qg7 Ra8 Rc8 Bd3 Rc7 Be2 Bd7 Qg5 Ke6 f5+ Kd5 f7 Qh8 f6+ Bf5 f8R Rdc1 f7 Ra1 Rh1 Bh2 Bf1 Bhd6 Rh2 Raa7 Be2 Rab7 Ka5 b4 Ba6 Ra7 Kb6 b3 Kb5 b2 Kb6 Rac1 Kb5 b1R+ Nb4+ Ke6 Kb6 Rcb7+ Kc6 Ke5 Bc4 Ra5 Ba6 Ra1 Nd1 Rab1 Bh4 Ra1 Nf2 Re1 Nd5 Re2 Nc7 Rg1 Ne6 Rgc1 Rfb8 Bf8 Nd8 Bde7 Rc8 Rbb5 Kc7 Kd5 Rcb8 Kc4 c6 Rb1 Rc8 Rb3 Rcb8 Kc3 Rb7 Re5 Rba7 Re6 Kd7 Rd6+ Ke8 Rd7 Rb7 Rc7 Rb5 Kb2 Rd5 Kc1 Rd7 Bg7+ f8B Rbb7 Rd6 Be5 Rf6 B5d6 Kf7 Bb4 Bh6 Bf8+ Ke8 Bbe7 Ng4 Kd1 Rf7 Be6 Rf4 Bf5 Nf2+
1K4R1/1PNBb3/NRbp2br/Bbr1N1b1/p4R1n/R2P4/r4Pp1/2q2Q1k b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a3 hxg4 Qe2 Nc6 Qf3 cxb4 Qd1 b3 a4 b4 Ke2 Nd4+ Ke1 Nb5 axb5 Rh3 Nf3 Rh5 Ng1 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 Kh4 c4 a5 b6 g5 c5 b2 h3 b3 c6 g3 c7 g4 f6 g2 b7 d6+ Kd5 e5 Kc6 e4 f7 g3 Bb5 e3 Na3 b1B Nc2 e2 Nb4 e1B Na6 b2 Qe2 Rh6 Ra3 Be7 f8R Bg6 Rf4+ Bg4 c8N b1B Na7 Bbd3 Ba4 Qc8+ Kb6 Bb5 d3 Qc2 Bd2 Qc1 Bc3 Bd2 Kc7 Bc6 Nb5 Ra7 Kb8 Be3 Rd4 B3g5 Nbc7 Bb5 Rb4 Bc6 Rb2 Bgd7 Rb6 Bb5 Rh2 Bdc6 Bb4 Rh5 Bc3 Nh6 Rh1 Nf5 Bd2 Rh6 Nf3+ Kh5 h4 Kg4 h5 g1R Rh2 Nh4 Ne5+ Kf5 Rh3 g2 Re3 Rd1 Be1 Rd2 Re4 Rc2 Rb4 Rh7 h6 Rc4 Nf3 Kg4 Ne5+ Kh3 Bc3 Rc5 Rf4 Kh2 Be1 Rg7 h7 Kh1 h8R Rh7 Rg8 Rh8 Bb3 Rh6 Be6 Rc2 Bc8 a4 Bd7 Ra2 Nc5 Ra5 N5a6 Bc4 Bb4 Rc5 Ba5 B4b5 Qf1+
3NnB2/1b3R1K/BRPBNr1Q/qp1r2rr/b4B2/2pp2Nb/1PkP2r1/8 b - - 1 2 illegal: No proof kernel forced: bxDB
1B5r/n2n1BP1/2rBR1rR/1P1Qpqrk/N3N3/p1b2p2/B1KnqP2/5N2 b - - 0 1 illegal: No possible last move, all moves rejected
k4BRK/rBq2r2/pQN2B1P/2Nr2PN/1qpbp1NR/3r4/2P2nn1/n7 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 h5 f3 hxg4 Ra5 g3 Ra1 g2 Nh3 g5 Ng1 g4 Ra3 g3 Ra1 Bg4 fxg4 Rh5 Bc4 Rh4 Bf1 Rh8 Ke2 Kd7 Ke3 Kc8 Kf4 Kb7 Kg5 f5 Kg6 c5 h4 e5 d4 c4 b4 f4 g5 e3 h5 e2 h6 e1N b6 f3 d5 e4 b5 f2 d6 Nd3 d7 Nb2 Nh3 g1R Nf4 g2 Nh5 Nf6 Rh4 Bg7 Qd6 Rh1 Nc3 g1Q Bh3 f1R Nd5 Nd3 Ne3 Qc7 d8B Nbd7 Ng4 Qgc5 Ba3 Nd5 Bf6 Rhd8 Kh7 Qb4 Ra2 Kb8 b7 N7c5 Qb6 N5f4 Rb2 a6 Rb3 Bf8+ Kh8 Nf2 Rd3 Ng2 Rd5 Rc8 Rd8 Nb3 Re8 Bc5 Rg8 Qa5 Bb4 Bd4 Bf8 Na1 Qe6 Ka7 b8N Qa3 Nd7 Qb4 Nc5 Rd8 b6+ Kb8 b7 Rd5 Qb6 Ra7 Ne3 Rd1 Bc8 Rh3 Ng4 Rf3 B6g7 Rf7 Bf6 Ra8 Qd6 Ka7 b8N Rd3 Nc6+ Kb6 Nd8+ Ka7 Qe6 Kb8 Qc6 Ra7 Qb6+ Ka8 Nc6 Rh3 B6g7 Ra3 Bf6 Rd3 Bb7+
b1q1Nr1Q/1k4b1/1NN5/nR1p1P1n/pq4p1/qRB2B1B/P1Bb2P1/K4b2 b - - 1 2 legal: proof: e4 b5 d4 c5 dxc5 a5 h4 f5 b4 fxe4 h5 a4 h6 Ra5 bxa5 Qc7 Qg4 Qh2 Qf3 Qxh6 Qd1 Qh2 Kd2 Kd8 Kc3 Kc7 Kb2 e5 f4 h5 c4 g5 c6 d5 c5 h4 a6 b4 a7 b3 a8B e3 Na3 h3 Bd2 e4 Be2 Bg7+ Bc3 Nf6 Bf3 e2 Bb7 e1Q Qd4 e3 Rb1 e2 Ka1 Nh5 Ba6 Qhg3 Bd3 h2 Nc4 Bb7 Nb6 Rf8 Bc2 Ba8 Qf6 Qc1 Qd4 e1B Ne2 Bd2 Rd1 Be1 Rd3 h1Q Qf6 Qgh4 Nd4 Qa3 Qh6 Bd2 Qh8 Qhc1 Re3 Nd7 Rd3 Kb8 c7+ Kb7 c8N Ne5 Nc6 Nc4 Re3 Na5 Nd6+ Ka6 Ne8 Kb7 Re4 Qg4 Rb4 Qc8 Rb5 Qb4 Ne7 Qca3 c6+ Ka7 c7 Ka6 Bf5 Kb7 Bh3 g4 Nc6 Qd8 Re1 Qb8 Re3 b2+ Kb1 Ka6 c8B+ Qb7 Bf5 Qc8 Bc2 Kb7 f5 Qd6 Bb3 Qab4 Kc2 b1B+ Kb2 Bd3 Ka1 Bf1 Bc2 Qe7 Bb2 Qa3 Reb3 Qeb4 Bc3
r1N1r1bB/1KR3NP/R3rqrp/4k1p1/2NR1bB1/2P1nQ2/1p3RPq/6q1 b - - 0 1 illegal: No proof kernel
n3Nk1b/4p1N1/rB2B3/r1R1Q1Np/1Kn1Pqr1/1pB4P/rR3Pq1/6Bn b - - 1 2 legal: proof: c4 a5 b4 f5 a4 d5 cxd5 b5 g4 fxg4 Ba3 Ba6 Bb2 axb4 Bc1 b3 Bh3 b4 Bf1 Bb5 axb5 Ra6 Bg2 Ra2 Bf1 Ra8 d4 g5 Kd2 h5 e4 c5 b6 b2 b7 g3 d6 g2 d5 g4 h3 b3 Kc3 g3 Be2 c4 Bg5 Qc7 Qd4 Nh6 Bd2 Ra5 Qe5 Nd7 b8B Nf5 Bg4 Nb6 Ra2 Rh6 Kb4 c3 Na3 b1N Rb2 c2 Nf3 g1Q Bc3 c1R Nc4 g2 Ng5 Bg7 d7+ Kf8 d8N Na3 d6 Rc2 d7 Bh8 Nd6 Na8 Ne8 Ng3 Be6 Qh2 Rd1 g1R Rd5 Nh1 Rc5 Qg2 Bg8 Rcc1 Qd6 Qh2 Bd5 Nc4 Nde6+ Kg8 d8B Rg4 Qf4 Qg2 N6g7+ Re6 Qd6 Kf8 Qg3 Rea6 Be6 Qe5 Bb6 Rca1 Qf4+ Qf6 Qf5 R1a2 Bh2 Qf7 Qe5 Qf4 Bg1
B2r1N2/P2q2nn/3np1rR/pB1R1p2/5n2/2q1PKRr/1bPQ4/B2R2Nk b - - 0 1 illegal: No proof kernel
7r/1P1Bpq2/Kp2q1B1/1B2N1B1/PRnq1Qr1/nP4N1/qp2Rn2/N2bk3 b - - 0 1 illegal: No proof kernel
3r2QR/p1RRN1B1/1b4bp/1N2PBp1/P4b2/b2KP3/1k1B4/qRr1qn1r b - - 0 1 illegal: No possible last move
4n1B1/4bpn1/3R2p1/1Qr2Pnp/nR2n1BR/rNN1NbrP/1Pk4K/4R3 b - - 0 2 legal: proof: d4 e5 a4 b5 axb5 c5 Qd3 cxd4 Qd1 e4 g4 h5 g5 Qb6 Bd2 Qh6 gxh6 e3 Bg2 exd2+ Kf1 Be7 Bh3 Ba6 Kg2 Bd6 Kf3 Bf8 Bf1 Bb7+ Kg3 Ba6 Kg2 Bc8 e4 Ke7 f4 Kd6 c4 Kc5 h3 Kb4 c5 a5 b6 d5 c6 a4 e5 d3 b7 a3 e6 a2 e7 d4 e8R Ra5 c7 Rc5 h7 Nh6 Re3 Rg8 h8R Na6 b8N Bb7+ Kh2 Be7 c8B Nf5 Be6 Bf3 Re2 Nc7 Nc3 Ne8 Nd5+ Kc4 Qb1 Kb3 Nc6 d1N Re1 d2 Ne2 d3 Nec3 Nf2 Bd7 d1N Ne3 d2 Qd3 Ne4 Nd4+ Kb4 Bg2 Ng5 Nb3 Nf2 Rhg1 d1N Rh6 Nfe4 Rd6 Ndf2 Rad1 a1R Bf1 Ra8 Rg4 Ra3 Rd2 Nd1 Rh4 Nh6 Bg4 Nf5 Na4 Ndc3 Qe2 Nd5 Nc3 Nb6 Qa6 Na4 Bd3 Nd4 Rg2 Nde6 Qc6 Nd2 Bh7 Nde4 Ned5+ Kc4 f5 Kd3 Rg3 Kc2 Qb5 g6 Rgg1 N6g7 Rgf1 Nc7 Rg1 Rc8 Bg8 Nce8 Rg3 Bd1 Rd3 Bf3 Rd4 R8c7 Nb1 Rc3 Rb4 Re3 Nbc3 Rc5 Nf4 Bg2 Nfd5 Rg3 Rc6 Bh1 Rd6 Bf3 Ne3+
2k1bqR1/8/rNnn3P/3pB1B1/RNR1np1Q/1nP2r2/2p1KP1B/3nn2B b - - 0 1 illegal: No proof kernel
bK6/1p2N2b/1P3R2/2k2bQ1/2n1p1pN/b1Rn2Bn/RBPrP1b1/1R1Nr3 b - - 0 2 illegal: Other
2NK4/3R4/1Bbb3R/b1p1r1Nk/1P3Q1p/1b1n1nR1/B1PPr1pN/1N1r1n2 b - - 0 1 illegal: No proof kernel
1n6/Rp2N2K/1Br1nBBp/nr6/1P1q1Rp1/1nqPN2k/N3Q1rP/2r3N1 b - - 0 1 illegal: No proof kernel
4k1bB/p5Kb/n2p1B1r/1NB2p1p/1B1P2R1/1N1Q1P2/bP4q1/n3NrrR b - - 0 1 illegal: No proof kernel
1Q1B1Rq1/prpb2R1/1b1R1bR1/1PNNP2p/np6/1B1NP3/n3nK2/r1k5 b - - 0 1 illegal: No proof kernel
1B6/brn4R/R2KpP2/2N2b2/Nrp1BprP/2Q4q/1N2p1Pq/1NB2nk1 b - - 0 1 illegal: No proof kernel
1R1NBnnq/b7/1r1P1Bqp/1r1bp3/NknN3K/3P2pN/3p1PQ1/1B3R2 b - - 0 1 illegal: No proof kernel
2B3q1/1R3bQn/1N1p1p1p/B2q1rP1/1B1B2Pk/bpK1P3/1nN5/1Rb2Nr1 b - - 0 1 illegal: No proof kernel
6q1/3b1b2/2P2B1k/Knp1PPRR/R2Nq1p1/1pnNr3/rRB1p3/b3QN2 b - - 0 1 illegal: No possible last move, all moves rejected
r2q4/1K3pNr/1n1NB1q1/2Pn2B1/1RpP1R2/2P1pBRb/Q1pr4/b1R2k2 b - - 0 1 illegal: No possible last move, all moves rejected
RB2K1nr/N2PN3/2b4P/2Qp2R1/pp3rn1/PpBk4/1q1qR2b/NrN5 b - - 0 1 illegal: No proof kernel
qnRR1QB1/1PNbK3/4npp1/8/1r1Bp2R/N3bNP1/1N2pP1r/k2q3r b - - 0 1 legal: proof: b4 h5 e4 d5 Qg4 dxe4 a4 b5 axb5 c5 bxc5 h4 g3 h3 Qf3 Qc7 Qg2 hxg2 Ra6 Qd6 Ra1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kg5 Kd4 c4 a5 h4 e3 c6 g6 h5 a4 c5 a3 c7 a2 c6 Ra5 h6 Bb7 c8N Nd7 c7 Ne5 b6 Qd6 h7 Nh6 Bc4 e2 Na3 Bc6 b7 Rb5 Nb6 Bd7 c8R Rb4 Na4 Nf5 Nb2 Nc6 d3 Kc3 d4 e5 d5 e4 Be3 Nfd4 Nf3 g1Q Rh4 Ne6+ Kf6 Bh6 Rd1 Qf8 d6 Nb8 Bb6 Qg8 Ke7 a1R Ba7 f6 Bd5+ Bc6 d7 Be3 d8N Rc1 Rd4 Qd1 Bc4 Bd7 Bb3+ Nc5 Ne6 Rb1 Nc7 Ne6 Bd5 Ra1 Rc4+ Kb3 Rd8 Ka2 Bd4 Rb1 Ne8 Ka1 Rcc8 Qa4 Nc7 Rh1 Ba2 Qd1 Bc4 Nc5 Ba6 Qa2 Bc4 Rh2 Bg8 Ne6 Nab5 Qaa4 Na3 Qa8 Bf7 Rg8 h8Q Rf8 Qh6 Rh8 Bg8 Rh1 Qf8 Rh6 Rf4 R6h2 Rh4
1KRk4/1P1N1rP1/rb2b1pR/1pp5/R1nq3p/RP1N1qB1/1B3nQ1/3n3N b - - 0 1 illegal: No proof kernel
1b3N1r/1pn3kp/b1PPq3/2N5/P1n3NQ/2KB2p1/1BRrp1q1/Br2B1R1 b - - 0 1 illegal: No proof kernel
6b1/pRpB3n/5qRb/nBrP1r1Q/pp1rN3/1B3N2/1P1P2qN/kN1K4 b - - 0 1 illegal: Other
1R1B1R2/2R2Q2/BKprp1P1/2pb2N1/Pbbnp2B/2N1rP2/4n2b/2k2q1B b - - 0 1 illegal: No proof kernel
1r3k1Q/1r2n2n/P5pB/bB1R2Rr/BrpKb1q1/P1N2p2/P1R1p1B1/2N5 b - - 0 1 illegal: Other
1N1b3N/P1Bp1q2/Pb2R2k/2n3NB/p5p1/p1Qr3B/1Pr1bn2/1KR1B2b b - - 0 1 illegal: No proof kernel
1b1R2n1/q1p1p1B1/2Pk4/1p1N4/bpQN1P2/1rb2r2/2P1q2N/q1RBBN1K b - - 0 1 legal: proof: e4 f5 exf5 a5 b4 axb4 d4 h5 g3 Na6 g4 Nc5 dxc5 hxg4 a4 d5 f4 Kd7 Kf2 g5 Kg2 b5 h4 g3 f6 d4 f7 d3 c6+ Ke6 a5 d2 a6 g4 h5 Kd5 h6 Bd7 a7 Bc8 h7 Be6 Nf3 Qb8 Qe2 d1Q Bd2 Bg7 f8N Bc3 Be1 Kd6 Nbd2 Bb3 Qc4 Ba4 Rc1 Qe2+ Kg1 g2 Nh2 Qb7 Ne6 Rd8 a8N Qa7+ Nd4 Rd7 Nhf3 Rd8 Rh4 Rd7 Kh2 g1B+ Kh1 g3 Nb6 Bf2 Nd5 g2+ Kh2 Rd8 Rh5 Ra8 Rf5 Rd8 Rf8 Rd7 Rd8 g1Q+ Kh3 Qh1+ Nh2 Ba1 Nf5+ Ke6 Rb1 Qe5 Be2 Qa6 Nc3+ Rd5 Bh5 Ba7 Bf2 Bb8 Bg3 Qd1 Kg2 Qa7 Ndf1 Qc1 Bd1 Qe2+ Kh1 Qa3 Qc5 Rd3 Nd5 Rb3 Rc1 Bc3 Qc4 Qa1 Be1 Qc5 Rf8 Qa7 Nd4+ Kd6 Rc8 Nf6 Re8 Rg8 h8B Rg3 Rf8 Ng8 Bg7 Rf3 Rd8#
2r2q2/1KN3q1/B2qp1R1/BPp2Bp1/bNP1r1P1/1r4QB/R1b1p3/1kn4R b - - 1 2 legal: proof: f4 b5 h4 d5 a4 bxa4 e4 Kd7 h5 g5 f5 Nc6 f6 Ne5 Ke2 dxe4 Ke1 Ng6 hxg6 e6 Qh5 Nh6 Qd1 Be7 fxe7 Ng8 Kf2 Kd6 Ke3 Kc5 e8B Kb4 g4 c5 d4 h5 c4 f5 d5 a5 d6 f4+ Kd2 e3+ Kd3 h4 Ke4 h3 d7 h2 g7 a3 b3 f3 Bg6 a4 Qd5 f2 Bg2 f1Q Ra2 Qff8 Nc3 Nf6+ Ke5 Rh3 g8B Ne4 B8h7 Ng3 Be8 Ne2 Bd2 Nc1 Qd6 e2 Bhe4 Re3 Nf3 Qc7 d8R Bd7 Be1 Rc8 Nd4 Bc6 Ndb5 Qce7 Ra1 a2 Nc7 Ka3 b4 Kb2 Bh3 a3 N3d5 Ba4 Bb5 Rb3 Bf5 Qd7 Rg1 h1B Ba6 Be4 b5 Bc2 Ba5 Qc6 Rh1 Qb6 Qe7 Qb8 Kd6 Re3 Kd7 Re4 Na8 Qf4 Nac7 Qh2 Kc6 Qd6+ Kb7 Nd3 Rad1 a1Q Rdg1 a2 Nb4 Nc1 Rd1 Kb1 Rd2 Qc3 Qf6 a1R Qe5 Ra2 Qg3 Ra3 Rd7 Qch8 Rg7 Rb3 Rg6 Qhg7 Qg1 Bd1 Ra2 Bc2 Qg3
2n3n1/R1p1P1N1/2B2qQp/3R2r1/K2RNPk1/p1R1Np2/Pr3B1r/q1b3n1 b - - 0 1 illegal: No proof kernel
R1Q2N2/3P4/b3P1BR/1r1pnpp1/k1q1B1N1/q1q2PN1/p2r1BK1/1N1n1n2 b - - 0 1 legal: proof: d4 b5 c4 d5 a4 bxa4 g4 e5 dxe5 h5 c5 Bd6 cxd6 hxg4 h4 Kd7 e4 Kc6 b4 a5 h5 g5 d7 f5 e6 a3 h6 a4 e5 g3 h7 g2 e7 a2 e8B a3 f3 Nf6 Kf2 Qe7 e6 Nh5 Nh3 g1N Bd3 Ne2 Qb3 Ra5 Kf1 Ba6 Ng1 Nhg3+ Kg2 Rb5 Be4 Nc3 Be3 Nf1 Bf2 Nd1 Qc2+ Qc5 Ne2 Qc3 Rh6 Qc4 Bh4 Kb6 Qc1 c5 Bf2 Nc6 Bg6 Ne5 Ng3 Rb8 h8N Kc6 Qc2 Qc3 Bf7 c4 Ng6 Rh8 Nf8 Rh7 Rh3 Rh6 Bg6 Rh4 Bd3 Rd4 Be4 Rd2 Rh6 Rb8 Qb2 Kb5 Qc1 Ka4 b5 Qe3 b6 c3 b7 c2 Qb2 c1Q Qc3 Qa7 Qc5 Qc4 Qc8 Qad4 Bd3 Qdc3 Be4 Ra8 b8N Ra7 Nc6 Rb7 Ne7 Rb5 Ng8 Rd4 Nd2 Rd3 Nf6 Rd4 Rc1 a1Q Nb1 Rd2 Ng4 a2 Rc2 Qa3 Rc1 Q1c3 Rc2 Rc5 Rb2 Ra5 Rb8 Rb5 Ra8
R2RBqr1/1np5/P3pB1B/4R1p1/2PpNnBP/2rQ4/1Kbnr1n1/4Nk2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 d4 hxg4 d5 f5 exf5 e6 d6 Be7 dxe7 Kf7 Kd2 Kf6 e8B Ke5 f4+ Kd4 h4 b5 a4 d5 c4 g5 a5 b3 f6 b4 f5 g3 f7 b2 f8R g2 f6 b3 f7 Bd7 Qe2 Nf6 Qd1 Nh5 Qf3 Na6 Nc3 b1N+ Kd1 b2 Kc2 Rg8 Qg3 Nc5 Nh3 g1N Nf4 Nh3 Ng2 Nd2 Na4 b1R Be2 Rb3 Nc3 N3f4 Ne1 Ba4 Bg4 Nb7 Ne4 Rc3+ Kb2 Bc2 a6 Ng2 Ra5 Rb8 Rf1 Qc8 Rf5 Qd8 Re5 Nhf4 Rb5 Qe7 Rb6 Qd8 Rd6 Qf6 Rd8 Qg7 Nf3+ Ke3 Qh3 Ke2 Ne1+ Kf1 Qg3 Nf3 Be3 Nd2 Bd4 Re3 Qh3 Re2 Qd3 Qf6 Bc5 d4 Be7 Rg6 Rh8 Rg8 f8B Qf5 Bh6 Qf8 Ka1 Nd6 Ka2 Rb3 Bf6 Rc3 Kb2 Nb7 Rh7 Nd6 Rhd7 Nb7 Ra8 Nb3 Rd6 Nd2 Rdd8
qNK1R3/3p2RQ/2Pb1n1q/Nq1p4/p3p1b1/1BP1P2q/rk2B1B1/3n1RB1 b - - 0 1 illegal: No proof kernel
2BN4/1K1k3N/Rbr1rpp1/1b3q2/3p3q/Q1PPb2p/2R2P2/bR1n1BBB b - - 1 2 illegal: No possible last move, all moves rejected
N1B1nQ1b/1R2B2P/qpn1p1qp/4RN2/3r3P/N1r2RP1/kN1np1K1/3n4 b - - 0 1 illegal: No proof kernel
n2bb3/p4RKP/1Qp3B1/p6q/3RB1Np/BNP3k1/qrn1N1P1/3nn1N1 b - - 0 1 illegal: No proof kernel
1b1B2n1/3rrp2/p5RN/1Rq2Qq1/1qpq4/N4KP1/b1PR1P1p/2BR1Bk1 b - - 0 2 legal: proof: e4 b5 b4 d5 h4 dxe4 a4 g5 axb5 gxh4 b6 a6 b5 Qd7 b7 Nc6 b6 Na7 bxa7 Qd8 Ke2 Kd7 b8B Ke6 d4 Kf5 d5 Kg4 d6 h5 d7 e5 g3 c5 Bb2 h3 Qd4 h4 Bc7 h2 Nh3 Bd6 Ra4 Qg5 d8R Be6 Ng1 h3 Qd1 Ba2 Rb8 c4 Rf8 e3 Qe1 e4 Nc3 Re8 a8R Re7 Bd8 Bb8 Nf3 Qc5 Rg1 h1Q Qb1 h2 Ra5 Rh5 Re8 Rd5 Bc1 Rdd7 Rb5 Qg2 Nh4 Kh3 Nf5 Qd4 Ke1 e2 Qb4 Qc5 Nb1 Qd4 Qa5 Qc5 Nd6 Qd4 Na3 Qc5 Kd2 e3+ Kc3 Qg5 Kd4 e1Q Rh1 e2 Rf8 Rb7 Nf5 Qb4 Nh6 e1Q Ra7 Rbc7 Rab7 Qe6 R7b6 Qc8 Rg6 Ra7 Qc7 Qcf5 Qf4 Red7+ Ke3 Qfc5+ Ke2 Rac7 Re8 Rb7 Ree6 Rbc7 Rd6 Re7+ Kd1 Rcd7 Rd2 Qd4 Be2 Qa8 Qf5+ Kg2 Rf1 Qad5 Re1 Be5 Bf1+ Kg1 Ke2 Q5c5 Kf3 Bb8 Red1
4K1Bb/3n1Bkp/p4p1Q/rb1P2BP/b1bb1R1p/RN1R1P2/nN6/3r1B2 b - - 0 2 illegal: No possible last move
2NN3r/Rn3r1p/1n1p4/P3B1RR/npR3Pk/1K1P2p1/2B4b/1n1QBn1b b - - 0 1 illegal: No possible last move, all moves rejected
2QNb1nK/2P3B1/BnpnrNB1/R1P2Brb/4p3/6kp/b1pb3P/1N1R4 b - - 0 2 illegal: Other
1Q1rb1R1/1Pb1b2K/1p3k1b/7R/3PnN2/pBBp1p2/P1nBrrR1/3N1R2 b - - 0 1 illegal: No proof kernel
b2r1kBN/1pNR2b1/1BP3BB/2p2Prb/p5p1/R1P4b/6r1/1nQ1K1Rn b - - 0 1 illegal: Other
2K2QB1/2bN3P/1RPr1B2/Pq1n1p2/1k3pbp/r2b4/RRpRn1p1/3NB3 b - - 0 1 illegal: No possible last move, all moves rejected
QRr4n/1RN2q1p/4p3/1N2K2k/1B1Pn2r/2p1BRpP/1bPBqp2/5Bb1 b - - 0 1 legal: proof: g4 b5 a4 d5 e4 dxe4 f3 f5 axb5 exf3 Bh3 f4 Bf1 Bf5 gxf5 Qd7 Bc4 Qd4 Bf1 Qd8 Kf2 Kf7 b4 c5 d3 a5 b6 g5 b5 c4 h3 e6 f6 Kg6 f7 a4 b7 c3 b6 g4 Na3 Qc7 Rb1 Kh5 Qe1 Nh6 Qe4 Na6 b8B Bc5+ Be3 Rc8 f8B Qf7 Nb5 a3 b7 a2 Ne2 a1B Nc7 Bb2 Nd4 Bb6 Bd6 Nc5 Ndb5 Ra4 Bd2 Rc4 Ba7 Ra4 b8R g3+ Ke1 f2+ Ke2 f3+ Ke3 Rc4 Qa8 Rh4 Rh2 Ne4+ Bc5 Qg6 Kd4 Nf7 Rh1 Nh8 Ke5 Qf7 Bb4 Ba5 Bae3 Bb6 Ra1 Bc5 Ra7 Bb6 Rab7 Bc5 Bg2 f1Q Rh2 Qf2 Bf1 Qe2 Rf2 Qd1 Bf4 Be3 d4 Qe2 Rg2 Bg1 Bde3 Qd1 Rd2 f2 Rd3 Qe1 Bd2 Qd1 Rf3 Qe2 Bfe3
Rn5R/1R1QKp2/4B2P/p1p2Brq/q3BnRP/P1rN1p2/1p1bb2k/7N b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 gxh5 c5 bxc5 Qf6 Bb2 Qb6 Bc1 Qd8 c4 d6 c6 Bd7 c7 Qc8 c5 Bg4 c6 Qd8 Ba3 Bc8 Bc5 dxc5 Kf2 Ke7 Kf3 Kd6 Ke4 a5 h4 b5 d4 g5 h6 g4 d5 b4 a3 f3 Nc3 b3 Na2 g3 Nh3 g2 Rg1 Na6 Nc1 Bg7 Rb1 Ra7 Nd3 Bc3 Nhf2 Bf6 Nh1 Nb8 e3 Bh3 c8B Qd7 c7 Bc3 Rb2 Qc6 Bf5 Bd2 c8B Rb7 Bce6 Ne7 Kf4 Rb5 Kg5 Ng6 Kf6 Rg8 e4 Nf4 Be2 Rg5 e5+ Kc7 Ke7 Rb7 Bd7 Qa4 e6 Rb4 Bc8 Rc4 d6+ Kc6 d7 Kd5 Rb1 Rc3 Be4+ Kd4 d8R+ Ke3 Rh8 Bf5 Nc1 Bh7 Bc4 Bg6 Nd3 Bh7 Rf1 g1Q Rf2 Qg3 Rg2 Qg4 Bcd5 Qh5 Rg4 Bg6 Bf5 Bh7 Bde4 Bg6 Kd6 Bh7 e7 Bg6 e8R b2 Ke7 Bh7 Bce6 Bg6 Qb3 Ke2 Qd5 Bh7 Rbg1 Bg6 R1g2+ Kf1 Qd7 Bh7 Re2 Bg6 Ng3+ Kg1 Re1+ Kh2 Nh1 Na6 Ra8 Nb8 Bb7 Bh7 Re4 Bg6 Rb4 Bh7 Bfe4 Bg6 Bc8 Bh7 Rb7 Bf5 Rg3 Bh3 Rg4 Bf1 B6f5 Be2 Qd5 Qd4 Bce6 Qa4 Qd7
5QRn/R1Prpb2/Rpb1P3/2B3pN/1rB5/qpk1p1PK/7n/1q2BR1N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 dxc5 g6 e5 Ra4 h5 Ra7 h6 Ra5 Qd3 Bg7 hxg7 Ra8 Qe4 fxe4 f4 Kf7 Kf2 Ke6 Kg3 Kd5 c4+ Kd4 a4 d5 c6 h5 f5 h4+ Kh3 b3 e6 g5 c7 b6 c5 Nc6 a5 Ne5 a6 Nh6 g8R Ng6 f6 Nf5 c6 Rh7 f7 Bb7 f8B Nh8 c8Q Ne3 g3 Qd6 c7 Ng4 a7 Nh2 Nc3 Qa3 Bc4 Bc6 Nd1 e3 Bd2 Be8 Be1 Bf7 Bf2 Rb8 Qe8 Rd8 a8R Rd7 Ra7 Rh6 Bg7+ Rf6 Nb2 Kc3 Qf8 d4 Nd3 Rf4 Be5 Rg4 Bd6 Re4 Nf4 d3 Ra6 d2 Bc5 d1Q Nh5 Qb1 Ra7 Qb4 R1a6 Qa3 Nf3 Rf4 Rf1 Re4 Ne1 Red4 Bb5 Rb4 Bc4 Nf3 Kg4 h3 Nd3 h2 Kh3 h1B Be1+ Nd2 Nf2 Ba8 Nh1 Bc6 Bf2 Nf3 Qc8 Nh2 Qd8 Bb7 Qf8 Bc6 Be1+
q1qR1R1b/1rp1NpkN/3Pn3/2PQ1NBB/3B4/p2pK3/P3p2n/3rBb2 b - - 0 1 illegal: No possible last move
B3B2N/Kp1pp1bR/3P1p2/1N1N1Pp1/6rP/1b1b1q2/krBn1NQ1/1R5r b - - 1 2 illegal: No proof kernel forced: wxLB
2k1B2Q/1rr5/1PR1Bp2/1q1pBPNN/n1pP2R1/5rBq/p2KR1np/1b6 b - - 0 2 legal: proof: d4 e5 a4 b5 axb5 g5 h4 gxh4 c3 Bg7 Be3 exd4 Bh6 d3 Bc1 Bd4 cxd4 Kf8 Bf4 Ke7 Bc1 Ke8 g4 a5 e4 h5 f4 d5 b4 Kd7 b6 c5 b5 h3 g5 a4 b7 h4 e5 a3 b6 c4 g6 d2+ Ke2 h2 g7 h3 Ra2 Na6 b8B Qe8 Nf3 Nh6 g8R Nc5 Ng5 Ng4 Nc3 Ne3 Nce4 Rh7 Ng3 Ng2 Nh5 Ra7 e6+ Kd8 Qe1 d1R Be5 Rd3 Qh4 Rf3 Kd2 Rc7 e7+ Kd7 Rg6 Na4 Rc6 f6 Rg1 h1Q Rb2 h2 Rc2 Qh8 e8B+ Kd8 Bd3 a2 Bf5 Rhg7 Bg4 Bf5 Qh3 Bh7 Be6 Rgd7 Ba3 Kc8 Bad6 Be4 Rb2 Bb1 f5 Qh7 Re1 Qf1 Re4 Qg1 Rg4 Qe3+ Kd1 Qb3+ Kc1 Qb4 Re2 Qb5 Kd2 Qh6 Ng3 Qh8 Qh6 Qh7 Qg7 Qh3 Nh5 Kd8 Qh7 Rb7 Qh8 Rdc7 B6f7 Kc8 Bg3 Nc5 Bde5 Na4 Be6+
N1k3RR/p3R3/p1BNKn1q/b2p1r2/bbb1P3/rp2P3/P1B1p1B1/1Q2B3 b - - 0 1 illegal: No proof kernel
1nN1R3/pBp1Kp2/1NP1b2n/3P1PB1/r2R2B1/1npn3p/k1r3b1/4QR1B b - - 1 2 illegal: No proof kernel
4q1Q1/R3pp1N/NpnP2Br/BR3p1P/K4k2/p1qBr3/p4P2/BbR3b1 b - - 0 1 illegal: Other
8/b2pQprp/P2bN1NP/1n4p1/3RKBpk/3BNPR1/1p1Np1r1/6Bq b - - 0 2 illegal: Other
1n5R/5BPp/2b1rR1q/1nB1r1kP/2Nq2p1/RRN1Q1PB/1rbn1bq1/K7 b - - 0 1 illegal: No proof kernel
2rb1r2/1rB2NQ1/1Pp4p/2K1B1bP/rn4r1/1NR1B2k/1nPq2Nn/1B1bR3 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 Ra4 fxg4 Ra2 Ba6 Ra1 Bc8 Ke2 Kd7 Ke3 Ke6 f4 Kf5 h4 g5 b4 a5 d4 e5 b6 h6 h5 a4 d5 a3 b5 a2 d6 g3 d7 g4 b7 g2 b6 c6 Qd6 g3 Ba3 Kg4 f5 Be7 f6 Na6 b8B Nb4 f7 Bg5+ Ke2 e3 f8N e4 Bc7 Nf6 Nh7 Rf8 Nh3 g1R Nd2 g2 Rb1 a1R Bc1 R1a4 Qd4 Rb8 Be5 Rb7 Ke1 e2 Kf2 e1N Nf4 Ned3+ Ke3 Nb2 Nb3 Kg3 Qc3 Ng4+ Kd4+ e3 Kc5 Nh2 Bc4 Kh4 Bg8 e2 Be3 e1B Rc1 Bg3 Re1 Rf1 Bc4 g1R Ng2+ Kh3 Qd4 B3h4 Qc3 Qc7 d8B Qd7 Bdc7 Qd2 Qd4 R1f2 Qd7+ R2f5 Qg7 Rff1 Bf7 Bg4 Bg8 Bd8 Bd5 Bd1 Ng5+ Kg4 Nf7+ Kh3 Bc4 Rf4 Bd5 Rg4 Be6 Rf1 Rg1 Rf5 Rgf1 Rfg5 Rf4 Rg6 Rc4 Bhg5 Rc3 Rf6 Nc1 Rg6 Ba2 Re6 Bb1 Re7 Bb8 Rec7 Nb3 Rc8 Bbc7
rR1qkbqn/1q3b1n/4qBB1/q1BQ1B2/1NR1p1p1/1N2P1P1/r3R1P1/4K2b b - - 0 1 illegal: No proof kernel
rN4R1/rPn1b2p/1p4bR/rPR1qr2/4Rr2/q1n4q/3BBQNP/B1k3K1 b - - 0 1 illegal: No proof kernel
3Q1RN1/q1BrB1Rq/Ppn1K1bb/4pN2/3qnB2/1n1BP2R/1P2kn2/1r5n b - - 0 1 illegal: No proof kernel
2KR1bQ1/2pN1b2/p1n1rR2/P1b1B3/q1bRNbPB/5R2/rrPq4/5Bnk b - - 0 1 illegal: No proof kernel
q1B1rR1B/N4rnN/b2qBppb/5PP1/kn5r/P7/1K1R1bBq/2N2Qb1 b - - 0 1 illegal: No proof kernel
6N1/2pRr1n1/2P3pn/NbBqr1b1/1rNR2PP/1B2bQ1K/2kn1N2/q5Bb b - - 0 1 illegal: No proof kernel
1nN2R2/1R1P3n/k1Bnqr2/1N1pq2R/bbp2QnB/5r1r/B1PP1q2/1K4R1 b - - 0 1 illegal: No proof kernel
b2Qkn1K/1rB1brpR/P3p3/4P1Nr/1rB1b3/1B1Rq3/1q2N1P1/n2qRB2 b - - 0 1 illegal: No proof kernel
rbK1N2N/4N1k1/R3Pr1R/1pB1nn2/2npB1N1/n5R1/1PrPr3/1qr2b1Q b - - 0 1 illegal: No proof kernel forced: bxDB
n2q2r1/rNbB4/1PbQr1B1/4nn1K/R4p2/p1R3R1/PR2rP2/BbkNb3 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 h3 g5 h4 gxh4 g4 Ke7 e4 Ke6 Ke2 d5 Kf3 h5 b4 f5 b5 a5 g5 c5 g6 f4 b6 c3 g7 c2 Bd3 d4 Nd2 a4 Nb3 c4 Rh2 a3 Bd2 c1B Rh3 c3 Na5 c2 Qe1 Na6 Nc4 Bd6 Rg3 h3 Rb1 h4 Kg4 h2 Qe2 h1R Qe3 h3 Rb5 h2 Rg2 Nh6+ Kh5 Nf5+ Kg4 Bc7 g8R Ra7 Ne2 Re1 Rg3 h1B Bc3 Bd2 Nd6 c1N Nb7 Bd7 Bb1 d3 Qc5 Bc6 Ba1 Bc3 Bc2 d2 Rb2 d1R Rf3 Bd2 Nc3 Re2 Qb4 Rf1 Nd1 Be1 Rc3 Nd3 Rg5 Re8 Kh5 Rg1 Rg7 Rg6 Bb1 Rf6 Rg3 Rg8 Qd4 Bd6 Qb4 Nc7 Qc5 Na8 Qd5+ Ke7 e6 Bc7 e5 Be4 Bc2 Nb4 Ba4 Bb1 Bc2 Nd3 Qd6+ Ke8 e7 Kf7 e8R Rfg6 e6+ Kf6 Qb4 Ke5 e7 Re6 Qd6+ Ke4 Ba4 Ne5 Rf8 Bd5 Bd7 Bc6 e8B Qf6 Bg6 Qe7 Rc8 Qd8 Qe7 Kd4 Ne3 Ke4 Rc4+ Kd3 Ra4 Rc2 Qf8 Kd2 Qd6+ Kc1 Nd1 Re2 Qd3 Be4 Nc3 Bb8 Qd6 Bd5 Rc5 Bc6 Rcc4 Bc7 Nd1+ Bc2 Re4 Bd3 Ree3 Bb1 Rc3+
6Q1/1Nn2k1n/p6r/3bRbp1/2q1r1P1/1BBnrr2/Pb2NNNP/1KB1R1n1 b - - 0 1 illegal: No proof kernel
1R2Kn2/1rP1n1R1/1p6/QP3RN1/r1B3qB/1rn1p1NN/4PRn1/b1rkqb2 b - - 0 1 illegal: No proof kernel
1b6/N1r2N2/3Bk1n1/nrq3pb/bqBpN1PR/Bn1KR1P1/3Pn2B/2b2Q2 b - - 0 1 illegal: No possible last move
nB3R2/NR2K3/b1kB1rRb/b1p2BpN/1n4P1/1bPr1PR1/5n2/q1q1Q1n1 b - - 0 1 illegal: No proof kernel
1n3n1Q/b1n3B1/BN3r1P/2p5/pnP2bbq/k1K5/Pr1NqbRN/3R1B1B b - - 0 1 illegal: No proof kernel
4bqk1/B2b3b/1r1P4/q3R1n1/2n1pbn1/p1Rn1BrN/PN2P3/N3BKNQ b - - 0 1 illegal: No proof kernel
1qr5/1P3N1p/rb2p2P/1pN3B1/bN1R4/nP1q2BB/q4nrb/QBk1KR2 b - - 0 1 illegal: No proof kernel
1B1Q1K2/BN3bn1/R4R2/2pr1rqn/1k4pN/B2p1BPr/b1Pbq1RP/4q3 b - - 0 1 illegal: No proof kernel
1bQBRkNK/n1pP4/1r6/p4B1B/pbP1bNr1/Prn3q1/N6q/2RnB3 b - - 0 1 illegal: No proof kernel
2BbrRqn/pN1p1RNn/rb1P1p2/1k6/6K1/2qN2P1/1N1nQP1B/1br3B1 b - - 0 1 illegal: No proof kernel
Q4rN1/2k1pb2/n4NRn/1B2q3/1p1p2PB/2b1P1rr/1PN2B1b/KBnR1q2 b - - 0 1 illegal: No proof kernel
qnRBKbbb/r1p1p2R/2NN4/2N1Nr2/1nP5/kp2P1Qr/1PB2qq1/6R1 b - - 0 3 illegal: Other
2b1R3/3nN3/pNb2b2/2q1Rp1B/1RrrPkQn/K2RpP2/1n2P1n1/2B1nB2 b - - 0 1 illegal: No proof kernel
1NB2bK1/B2nBp2/4r3/knpBnP1R/2PPrp2/1qnr1R1Q/2Rnb3/2N5 b - - 0 1 illegal: No proof kernel
1NR4K/4nb2/3B1Nkp/2Bp2Nb/1b1P1Rp1/1P2nnbr/1Q4qP/r1N2B1b b - - 0 1 illegal: No proof kernel
1B2Qk1n/p6p/P1p2n2/1rP4N/qrRr2R1/b1bB1B1K/bNB1P3/1nNr4 b - - 0 1 illegal: No proof kernel
2RN3b/2rnp1Rn/3p1brR/P2bPk2/3BBbq1/N5Q1/1p1P2N1/r2R1Kn1 b - - 0 1 illegal: No proof kernel
2q1br2/1R6/1np2RpB/2P2bP1/p3Nn1k/b1K1Q2q/R2PBbN1/3bRBr1 b - - 0 1 illegal: No possible last move
2BB1n2/3QbB2/qN2bp2/pRB1bRr1/2b1bPpK/8/P1P4k/1rR1N1qn b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 h5 Bg2 hxg4 Bh3 Rh5 Bf1 Rh8 h4 Ke7 f4 Kf6 Kf2 Kf5 Kg3 g5 h5 b5 h6 d5 c6 a5 h7 b4 c7 d3 e3 d4 Bb2 f6 Rh3 b3 Ne2 d2 Qc1 d1B Bc3 d3 Nd2 b2 Ne4 b1Q Bg2 d2 Bf3 Be7 Nf2 Nd7 Bd4 Nh6 Rh5 Nf8 Bd5 Rg8 h8B Rb8 Bf7 Qd6 Nd3 Be6 c8B Qa6 Nc3 Bf3 Bg7 d1B Ne1 Be4 Qd2 Be2 Bc5 Bc4 Na4 Qd1 Qd8 Rb1 Nb6 Qd4 Qd7 Qd1 Kh2 g3+ Kh3 g2 Kg3 g1B Kh3 Rb4 Rc1 Ng4 Kg3 Rb1 Kh3 Nh7 Bf8 Nf2+ Kg3 Nh1+ Kh3 Bd6 Be7 Nf8 Bd8 Be7 Rh8 g4+ Kh4 Rg5 Rh5 Bb7 Qe8 Ke4 Qd7 Rg7 Rf5 Rg5 Ng2 Kf3 e4 Be3 e5 Qg1 Ne1+ Kf2 Qd1 Be4 Qd7 B6d5 e6 Bd4 Qa4 Kf1 Qb5 Be5 Qd7 B7d6 e7 Be6 e8R Be7 Nd3+ Kg2 Ne1+ Kh2 Bd4 B7d6 Bc5 B6d5 Re6 Be7 Rd6 Be6 Rd3 Bb8 Rb3 Be5 Rb5
1rN1B3/B3q1b1/1Pr1B3/knp1R3/1pPbb2n/1Pp1R1Nn/QBq3b1/K4R2 b - - 0 1 illegal: No proof kernel
B1QKN1N1/R4r2/RNp2prB/3RqP2/1q3bqp/nrR2n1k/3q2PP/1b6 b - - 0 1 illegal: Other
N6b/Pp4B1/R2K4/1P2Brpb/3nr1PQ/2Rr1kpn/4bq1N/qBN2N1b b - - 0 1 illegal: No possible last move
2B2q2/2qQ2Nb/1n2P1p1/N1npB1BB/6P1/2R1K1p1/rr1P3r/Rkr1bbR1 b - - 0 1 illegal: No possible last move
1bR1qq2/n2n1p2/K1p1R2B/5PNB/Qp2b1Pr/B1P3nR/3Rk1n1/2rr1N2 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 g5 hxg5 a5 Rh3 axb4 Rh2 Na6 Rh1 Nb8 Ke2 Kd7 a4 Kd6 f4 Kd5 d4 Kc4 g4 h5 g6 b5 a5 e5 d5 h4 g7 h3 c3 e3 a6 h2 d6 e4 a7 c6 d7 b3 Ra2 b4 Bb2 Ne7 g8R Rh4 Ba3 b2 Nf3 Bh6 Ne1 Qf8 d8B Bf5 Rg6 Nd7 Qa4 Nc8 Nf3 Bg5 Kd1+ e2+ Kc2 Bf6 Ng5 Be5 Rf6 Bb8 Re6 Bg6 Bg2 e3+ Be4 e1Q Bf5 e2 Nd2+ Kc5 Kb3 b1R+ Rb2 Rc1 Nf1 Bh7 Bd3 Be4 Rd2 Rd1 Bb6+ Kd5 Be3 Rc1 Rg1 h1N Rg3 Rd1 Rh3 Ng3 Qa6 Rc1 Ka4 Rd1 Ka5 Rc1 Qb6 Rd1 Bb1+ Kc4 Ka6 Rc1 Qa5 Rd1 Rc2 Kd3 Qa4 Qf2 Nf3 e1N Ng5 Ng2 Bd2 Ke2 Bdc1+ Ke1 Rd2 Qe3 Bd3 Bf3 Bg6 Be4 Rdd6 Ke2 f5 Qd4 Bh5 Qe5 Rg6 Qee8 Rge6 Bc7 Bf4 Rc1 Bd2 Rb8 a8R Na7 Rd5 Rd8 Rc8 Bb8 Nh7 Nf6 Bh6 Rd6 Ng5 Nd7 Rc5 Rd4 Rd5 Rdd1 Rd2+
1R4R1/p4Kbp/2r2Q1p/qb6/P1B1q2P/BN1P2nR/1nNb1Rbn/rB1k4 b - - 0 1 illegal: No proof kernel
3R1r2/p2q2qb/4npN1/1QbBp2P/4P1k1/NK1Rr1rR/Pn3r1N/R1B1q3 b - - 0 1 illegal: No proof kernel
3Q2r1/N2p2q1/1q2Rp1p/1N3rbk/bNPr2nn/1R2q2P/3qBP2/1KB2NB1 b - - 0 1 illegal: No proof kernel
1n5b/RR1Q1Rqp/5Bpn/r7/qn1NbR2/pNq1P2K/k1B3PP/2q2r1B b - - 0 1 illegal: Other
b2NQ3/2nB2K1/pr1r2p1/1kB1N1p1/3q2P1/P2Rnb2/B1R1prRP/n1b4B b - - 0 1 illegal: No proof kernel
b3KB1b/2RrN2Q/qprr2pq/2N2pP1/R1p1BqP1/n1P2k1N/R7/1N1n4 b - - 0 1 illegal: No proof kernel
2qkb2N/1p1NBn1r/pP1q1pPB/1R4Q1/1q2p2n/4P3/KbRR2R1/2rr3B b - - 0 1 illegal: No proof kernel
2NbR3/1P2Bp2/B7/1pKN4/rP4BR/r1bqp3/np2Pn2/qk1NrQBb b - - 0 1 illegal: No proof kernel
2Q5/3rp1r1/K1BRb1rp/N6P/1b2Pp1B/Bqq1NRpN/k1n3PB/2q2n2 b - - 2 3 legal: proof: d4 c5 f4 b5 a4 Qb6 axb5 cxd4 f5 Qf6 Kd2 Qxf5 Ra4 Qf6 Ra1 Qf2 Kd3 d5 e4 Kd7 c4 Kd6 h4 Kc5 b6 Kb4 c5 f5 b7 a5 c6 g5 c7 a4 h5 h6 b3 a3 Qf3 f4 Nc3 a2 Qe2 g4 Nd1 g3 Qf3 Qb2 Nh3 Ka3 b4 Na6 b8B Nf6 b5 Bg7 b6 Rg8 b7 Be6 c8N Ng4 Ba7 Ne3 b8B Bf6 Nd6 Rg6 Rb1 a1Q Qg4 Ka2 Nb7 Bg7 Be2 Nf1 Be5 Rg8 Bf6 Bh8 Ne3 R8g7 Na5 Qb7 Bd2 Qb3+ Bc3 Qab2 Bh4 Qc1 Bd1 Qba3 Rb6 Nb4+ Ke2 Qb3 Bb2 Qbc3 Ba4 Nc2 Rd6 d3+ Kf3 d2 Ke2 d1R Bc6 d4 Ba3 Nh2 Rf1 Rd3 Rf2 Nf1 Qf5 Q1b2 Qf8 Qbb3 Qc8 Rd1 Kf3 d3 Bd4 d2 Ke2 Rf7 Rf3 Be5 Bb6 Rfg7 Ba7 Qcb2 Bb6 Bc3 Kd3 Qc1 Bd4 Qbb2 Bb6 Bb4 Bc5 Bd7 Kc4 Be6+ Kb5 Qc3 Nd5 Re1 Bf2 d1Q Ne3 Qd5+ Kb6 Rd1 Bg1 Qdb3 Bh2 Rd5 Rd8 Rd7 Ka6 Rc7 Rd1 Rd7 Rd6
NK3R1n/1b1PR3/N4RB1/1pN1Bp2/1q1r1qnn/p1p2Q2/1PPq1b1k/r4N2 b - - 0 1 illegal: No proof kernel
2N5/1kqn2Nn/p1ppb3/pN3B1q/QP1n3b/PRPr1R1K/1R6/B3q1rR b - - 0 1 illegal: No proof kernel
1NQqB1RN/1K2p3/1RrpP2b/3P4/pN2B2k/n2bp1B1/1b2NPn1/nn5r b - - 0 1 illegal: No proof kernel
2n2krB/4b1pr/1qBR1p1N/2N3P1/1RN1P3/p3pBrQ/Prb2n1K/2bB4 b - - 0 1 illegal: No proof kernel
1Kb3r1/2Rrq3/b1ppQ3/1R1bpnr1/2k1P1nN/1NP3P1/2BNp1RN/B1b5 b - - 0 1 illegal: No proof kernel
1kB3n1/5nRR/1B2N2b/2pp1Qpp/4bqRB/K1bN1PP1/n3n1rP/1r5B b - - 0 1 illegal: No proof kernel
4n3/prnqQBN1/2B2Bp1/r2R2PN/1r3p2/P2kbP2/rB1n3p/1RKN3b b - - 2 3 legal: proof: e4 d5 h4 dxe4 b4 c5 h5 Qd6 h6 Qxh6 bxc5 Qh2 g4 Kd7 c4 Ke6 d4 b5 Kd2 h5 a3 f5 c6 g6 d5+ Ke5 c5 Kd4 d6 e5 c7 h4 c6 b4 d7 b3 d8B f4 g5 b2 Ra2 h3 Qg4 e3+ Kc2 e4 Bg2 e2 Qh5 e1R Be7 e3 Qe2 Na6 Bd8 Rh7 Be4 Bc5 Nc3 b1N Bb2 Bb7 c8B Nf6 c7 Rb8 Bc6 Nd2 Be6 Ra1 c8N Nc7 Nd6 Nfe8 Bf7 Qg3 Be7 h2 Qe1 e2 Nf5+ Ke5 Bd8 Be3 Ng7 Kd4 Be7 Qg4 Bf6+ Kc5 Nd1 Qd7 Bb5 Bg2 f3 Rb6 Bc6 Rb4 Qf2 e1R Ne2 Qd4 Ng3 Qd7 Rf1 Bh1 N3h5 Re2 Qe1 Rb1 Ne6+ Kc4 Rg1 Rb5 Neg7+ Rd5 Bbc3 Rb4 Kc1 Kd3 Bb2 Re5 Ra1 Ra5 Rb1 Rf2 Rf1 Bb6 Qe6 Be3 Qe7 Qc8 Re1 Bb6 Be6 Na6 Ba1 Nc4 Qd8+ Bd4 Nf5 Ra2 Bb2 Rhb7 Re5 Qd7 Rd5 Nd2 Nfg7 Nac7 Bf7 Qg4 Rc5 Qd7 Qe7 Be3 Rd5+
1N2rN1Q/p1Rr2n1/2rP2K1/4Rnbp/2p3R1/Pp5b/bPBB1q1B/kr4R1 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 g5 Rh3 gxh4 Rh2 Ke7 Rh1 Ke8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 g4 h5 g5 f5+ Ke5 b5 g6 c5 d6 b4 a3 h3 g7 f3 d7 h2 d5 f4 Kf5 f2 Bd2 f3 Kg6 Nf6 g8R Ne8 Nh3 Rh7 Ng5 Nc6 Rg1 h1B Nc3 Bh6 Nce4 Ng7 Ne6 Bg5 Nf8 Nd4 Nf6 Qb6 d8B Bh3 Bc7 Re8 Bh2 Ndf5 d6 B1g2 Qe1 Kb3 Rc1 Ka2 e4 b3 Bb5 f1R e5 f2 e6 Be4 e7 Bb1 N6d7 Ka1 Qe5 Rd1 Rc4 f1R Nb8 Ba2 Rc2 Rb1 Bd3 Rf2 Rc3 Rf4 Bc2 Ra4 Rc4 Ra6 Rcg4 c4 Qc3 Rd8 e8R Qf2 Re5 Rc6 Rh8 Re8 Qd4 Ne6 Rg8 Rd7 Rg7 Rdd8 Rc7 Neg7 Qd5 Rd7 Qg8 Rb6 Qh7 Rc6 Qh8
5B1n/1p3pR1/r2Q1RP1/Nkp2br1/p1Br4/Pb1n1P1q/RbN1Rr2/NK6 b - - 0 1 illegal: No proof kernel
N7/R3bp1Q/1n1R1Bp1/1BKbp1Rn/N2P1P1B/nkpb2bq/1r2P3/B1r5 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g3 axb4 g4 hxg4 h4 Kd7 a4 Kd6 f4 Kc5 Kf2 Kc4 Ke3 b5 h5 c5 h6 e6 a5 g3 h7 b3 a6 b2 a7 g2 d6 g6 d7 b4 Ra5 b3 Nf3 Nf6 Nc3 b1N Na4 b2 Nd4 Be7 Nb5 Bb7 Nc7 Qc8 d8B Nbd7 Rh3 Re8 h8B Nh5 Bf6 Rb8 a8R Bd5 R8a7 Nb6 Na8 Na3 Bh4 b1B Bb2 Bbe4 Ba1 Bd3 Rg3 Kb4 R5a6 c4 Kd4 c3 Qc1 Rh8 Rg5 Kb3 Qe1 g1B+ Qf2 Nb1 Bg2 Bh2 Qg3 Rb7 Qh3 Na3 Bh1 Bg3 Bf3 Nd7 Rd6 Nb6 Qh1 Qd7 Kc5 e5 Qh2 Qh3 Bh1 B3e4 d4 Bd3 Bf3 Rb8 Bg4 Rb7 Bd7 Ng7 Be8 Qg4 Ra6 Kc2 Kb4 Bf8 Qh1 Nc8+ Kc5 Rb2 Bb5 Nb6 Ra7 Kb3 Bf6 Be7 Qh2 Be1 Bf2 Rh6 Qg3 Rh1 Qh4 Qh3 Qh6 Nh5 Bh4 Bg3 Qh8 Rc1 Qh7
1Q1bb3/1pp5/p1r1BB2/1nn2KN1/2kNr3/1RNprB2/1PPP1rB1/Rq4n1 b - - 0 3 illegal: No proof kernel forced: bxDB
2B3q1/2pR1P2/nNk1nnQK/p3rp2/PBN5/qp2B1R1/1P1n1r1N/N4bb1 b - - 0 1 illegal: No proof kernel
1k1B3Q/1nRpn1K1/p4n1r/2B1r2B/N1Bn1pp1/2NP2Pr/PR5q/n2b3R b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 c5 g4 c6 Bh6 Rh2 Bg5 hxg5 bxc6 Rh4 c5 Rh1 c4 Kf2 c5 b4 h5 e4 f5 d3 h4 b5 f3 Ke3 c3 Kf4 f2 Ke5 c2 g6 f4 b6 a6 g3 h3 b7 h2 g7 c4 Qe1 c3 Ba3 c1N Bb2 c2 Ba3 Rh6 Be2 f1N Qc3 Nd2 Bf3 Ne2 Bc5 Nd4 Ne2 c1N Qb2 Nf6 Nec3 Qa5 Na4 Kd8 g8R+ Kc7 Nbc3 Ncb3 Rac1 Na1 Bd1 Rh3 Bb3 Qb5 Bc4 N2b3 Re8 Na5 Re6 Qb3 Rb6 Qc2 Rb5 Ne2 Kf5 Nbc6 Kg6 Ne7+ Kg7 Nd4 e5 Kb8 e6 Qg2 Qe2 Qg1 Rb2 Qg2 Qe4 Qc2 Qh7 Qf2 Rhf1 h1R Qh8 Rh6 Rfd1 R1h3 Rh1 Qh2 Bb4 Ka7 b8B+ Kb7 Bc7 Ka7 Rcf1 Bb7 Bd8 Bf3 Rc1 Kb8 Bc5+ Nb7 Rcc2 Bd1 Rc1 R6h5 Rcc2 Re5 Rc1 Ned5 e7 Rh6 e8B Ne7 Bh5 Ndc2 Ne4 Qg2 Bg1 Rf5 Qf8 Re5 Bb3 Kc8 Bhf7 Rh3 Bh5 Qh2 Bc7+ Nd8 Bgb6 Nd4 Rc4 Nec6 Nec3 Ne7 Rc6 Kb7 Bc4 Kc8 Bd6+ Kb7 Ba5+ Ka7 Bdb4 Nb7 Bc7 Rd8 Bc5+ Ka8 B7b6 Kb8 Qg8 Rf8 Qh7 Rh8 Bd8 Rf8 Rc7 Rh8 Qg8 Rh6 Qh8
2KbRBRk/2p1p1NB/N6R/2rnnr1p/2B3qP/P1Q2Rpb/3pP1r1/3b4 b - - 0 1 illegal: Other
b1n3N1/1pnPN2K/BNrB1b1R/4Rp1r/pPQbp3/p5R1/2Nk1Pq1/3r4 b - - 0 1 illegal: Other
2bn3K/n2n1kP1/Bp2pp2/q1r2P2/3QB2p/1prN2RB/qBNbN2P/1R6 b - - 0 1 illegal: No proof kernel
3qB1k1/Kpb1pnRr/1P5p/2r3B1/1qN1Pb1P/N1Q1B1nb/2p2p2/2N1R1N1 b - - 1 3 illegal: No possible last move, all moves rejected
2b4b/1prqQ1p1/1Np1rBPp/1PB3k1/KRp5/5RB1/2nq1N1P/BRn4n b - - 2 3 illegal: Other
B1K4Q/Np1rPq1r/2n1Bp1p/2nbB2P/2B3N1/1pbR3p/R1b2P2/kqN5 b - - 0 1 illegal: No proof kernel
2BqnK1b/1nN1pRpP/6PN/2q1Bb2/r2pQ3/rNp1P3/R1pN3B/r6k b - - 0 1 illegal: Other
b4bN1/4n2n/6p1/1NnP1pN1/1B1p3p/1rRpr2B/R1n1k1PP/N1q1Q1KR b - - 0 1 illegal: No possible last move, all moves rejected
4K2N/3p2pn/5bBp/2r1pN1P/3B1R2/nrNBP1bp/1kqB2P1/1R1n1Q1n b - - 2 3 illegal: No proof kernel
q6R/bBpqp2P/2n2pQR/2NpNbpr/1k2P1n1/1BR1rB2/3p2P1/2BK4 b - - 0 1 illegal: No proof kernel
1Bn1b2Q/2K3p1/pR3N1p/NNp1pqP1/1bqb3P/r1PRp1k1/2B4N/2B4n b - - 0 1 legal: proof: e4 d5 f4 b5 a4 bxa4 f5 a6 Bd3 Ra7 Be2 Rb7 Bf1 Rb6 Qf3 e5 Qd1 Re6 fxe6 dxe4 Kf2 Ke7 Ke3 Kd6 g4 c5 b4 f5 d4 a3 e7 a2 e8N+ Kd5 b5 Bd6 g5 Nc6 b6 Nf6 b7 Bc7 b8B Na7 Na3 Bd7 Rb1 a1B Nf3 Ba5 Bd3 Nh5 Nb5 Ng3 Nf6+ Ke6 h3 Bb4 Nh2 Be8 Qh5 Nc8 Rd1 Qd5 h4 Nh1 Rb3 Rf8 Rb1 Qc4 d5+ Ke7 d6+ Ke6 d7 h6 Qg6 Rf7 Qh7 Bb2 Qh8 f4+ Ke2 Kf5 d8N f3+ Ke3 f2 Nc6 f1Q Na5 B2c3 Rb2 Rb7 Rb3 Be1 c3 Bf2+ Kd2 Kf4 Bc2 Kg3 Rb2 Be1+ Ke3 Qf5 Rd3 Ba3 Na7 Rb4 Rb3 Ra4 Rb6 Bb4 Nb5 Bf2+ Kd2+ Kg2 Ke2 Bd4 Kd2 Qfe6 Ke2 Ra3 Kd2 Kg1 Ke2 e3 Kf3 Qh3+ Ke4 Kf2 Nc7 Qb5 Kd5 Qf1 Ke6 Kg3 Kd5 Qf2 Ke6 Qf5+ Kd5 Na7 Kd6 Qc4 Nb5 Nc8+ Kc7
2N4n/ppr2B2/3B2PQ/1n2P1Kn/2P1b3/RnkN4/R1b3R1/Q2R1qr1 b - - 0 1 legal: proof: h4 e5 b4 g5 hxg5 c5 d4 cxd4 f4 exf4 c4 Qf6 c5 Na6 Bd2 Qe6 Bc1 Qb3 axb3 Kd8 Be3 Ke7 Bc1 Ke8 Ba3 d6 Rh3 Be6 Rh5 Rc8 Bb2 Rc6 Bc1 Rb6 Rh2 Rb5 Rh4 Ra5 Rh1 Ra2 Na3 Rc2 Nb1 Rc4 bxc4 Be7 c6 Bd8 Ra5 Bb6 Ra1 Bc5 bxc5 Bf5 Rh2 Bc8 Rh1 Be6 Kd2 Ke7 e4 h5 g4 f5 g6 Kf6 c7 Ke5 c8Q d5 g7 d3 g5 Kd4 c6 h4 g6 f3 e5 f2 c7 f4 Ra4 f3 Ra3 h3 Rh2 Rh7 Qe1 Nc5 Rg2 h2 Qf8 h1R c8R Nh6 g8R Bf5 Nc3 Nf7 Ne4 Nh8 Nd6 Rc7 Nh3 Rg1 Nf4 Be4 Be2 f1Q Qh6 f2 Bf3 Re7 Rc6 Rc7 Rca6 Nb3+ Kd1 d2 Rd8 Kc3 Nc8 d4 Nd3 Bf5 Bd5 Be4 Rg5 Qh3 Ke2 f1N Bf7 Ng3+ Kf2 Nh5 Rg2 Qh1 Qf1 d1B Bg5 Qh3 Be7 Bc2 Bd6 Qh1 Ra2 Qh3 R6a3 Qf5+ Nf4 d3 Ke3 d2 Nd3 d1N+ Ke2 Nb2 Ke3 Na4 Qb1 Nc5 Rd7 Ne6 Qf1 Nd4 Rd8 Nf6 Qd1 Qh3+ Kf4 Nh5+ Kg5 Qf3 Be7 Nb5 Rd4 Qf1 Bd6 Qf2 Qa1+ Kd2 Nb2+ Kc3 Rd1 Qf1 Nd3#
2nN4/5Rqq/N5b1/1Q1q1RB1/P1rN1qN1/3KP1pb/B2pP1Q1/k2n4 b - - 0 1 legal: proof: g3 h5 d3 e5 Kd2 f5 Na3 g5 Ke1 e4 Nc4 b6 Ne5 e3 Ng4 hxg4 Bh3 Bb7 Bf1 Be4 dxe4 Be7 Qd2 Bd6 Qd1 Bf8 Nh3 a5 Bg2 a4 Qd6 f4 Qd1 b5 Ng1 f3 Bf1 Ra6 Qd5 Rf6 Qd1 Rf4 gxf4 Rh7 Qd5 Rh5 Qd1 Rh8 fxe3 b4 Bg2 b3 Bf1 a3 c3 Bb4 cxb4 axb2 Kd2 Ke7 h4 Ke6 a4 b1B b5 c5 h5 d5 e5 b2 h6 d4 h7 Kd5 e6 Kc4 e7 g3 e8N d3 b6 g4 f5 g2 f6 f2 f7 Nf6 f8N Nc6 b7 Na7 b8N Nd5 Na6 Nc8 Ra2 Nc3 Rh5 Qd5 Nf3 g1Q Bg2 f1B Ne6 g3 Nfd4 Qf2 Bh3 Qf4 Nf6 Rg8 h8Q Rg4 Qe1 Nd1 Ra1 Bc2 Re5 b1Q Qf2 Qbb7 Rb1 Qh7 Qe8 Rh4 Bf5 Bh3 Ba3 Rg4 Rb7 Qg7 Nb5 Kb3 Nd8 Ka2 Qg2 c4 Nd4 Ka1 Qb5 Bb1 Be7 c3+ Ke1 c2 Kd2 Qh7 Be6 Qg7 Rf5 c1Q+ Ke1 Qcc6 Kd2 Qcd7 Rc7 Rh4 Ng4 Qh7 Bg5 Qdg7 Rc5 Nb2 Kc3 d2 Rc7 Bc2 Rcf7 Bd3 R5f6 Bg6 Rf5 Nd1+ Kd3 Qfe5 Nf2 Qa8 N4c6 Qb7 Ba2 Rc4 Nd4 Qbd5 Ng4 Qed6 Qb4 Qf4 Qb5
1KB1r3/1P4B1/3R3n/NnP1P3/1QqRpr1N/1B1B3q/p6p/Qr2n2k b - - 0 1 legal: proof: d4 c5 a4 b5 axb5 d5 h4 g5 b3 gxh4 e4 cxd4 exd5 Bh6 Na3 Bg7 Nb1 Bf8 f4 e5 b6 a5 Be2 e4 Nd2 a4 Bc4 a3 Bf1 Bd6 Nb1 Be5 fxe5 Bf5 Nf3 Bd7 Ng1 Ba4 bxa4 Kf8 Bb5 Ke7 Bf1 Ke8 Ke2 Kd7 c4 h5 g4 f5 a5 a2 c5 h3 a6 h4 a7 h2 g5 h3 g6 d3+ Ke3 d2 Kd4 f4 d6 Kc6 d7 f3 g7 f2 Bd3 f1Q Na3 Qh4 d8Q Rh7 Nc4 Na6 Qb8 Nc7 Nf3 Nh6 g8B Rf7 Na5+ Kd7 Rb1 Ke6 Rb4 Kf5 Kc4 Qh5 Nh4+ Kf4 Qb7 Rc8 a8B Nb5 Kd5 Kg3 Rd4 Re8 Kc6 Rf4 Bb3 Qf7 Qb8 Qc4 Kb7 Qf3 Qf1 d1N Bd2 Nb2 Qa1 Qh5 Rd1 h1R Be3 Kh2 Bc1 Nd6+ Ka7 Rhf1 Bb7 Kh1 Bc8 h2 Qb7 Qf3 Kb8 Nb5 Be3 Qh3 Rd6 Rf2 Bg5 Rf4 Bf6 Rg1 Bg7 Rgf1 Qc6 Rg1 b7 Re1 Rd2 Rc1 Qb6 Rb1 Bf1 Nd3 Rd4 Na7 Qb4 Ne1 Rd6 Nb5 R2d4 Rf3 Be2 Rf4 Bd3
2N1n3/r3n2Q/1rN1k2b/n2P3n/3r3b/nNR1B2P/1PQ1rnB1/2RN2K1 b - - 0 1 illegal: No possible last move, all moves rejected
Qb4n1/1Kbn2R1/3BN1nP/bQP2n1r/k1N4P/1n4R1/BrbB4/1n5B b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 f4 e5 axb5 exf4 Nf3 a4 Ng1 Qa5 bxa5 Be7 Qd3 Bd6 Qd1 Bf8 Kf2 g5 Kf3 f5 h4 d5 e4 Kd7 c4 a3 a6 a2 b6 Kc6 b7 d3 c5 Kb5 e5 g4+ Kg2 g3 Kf3 d4 e6 g2 e7 Nd7 e8B Bd6 b8B Bc7 Qd2 Ka4 Qf2 d2 a7 d1N Bc4 d3 Bg6 d2 Bf1 Ne3 Ba6 d1N Bh7 Ng4 Be3 Nc3 Qf1 Nge5+ Kf2 f3 Kg3 f2 Ne2 g1B Nd2 Ng6+ Kf3 f4 Bc4 Nb1 Ke4 f3 Kd5 Bgh2 Kc6 Ba5 Bd6 Rb8 a8Q Rb2 Rg1 Bg3 Qc1 f1N Nd4 f2 Ne6 Bh2 Rg5 Ng3 Qf1 Nf5 Rg3 Ba6 Bd5 Bd3 Nc4 Bc2 Qd3 f1N Bh1 Nfd2 Bg5 Nb3 Bd2 Na3 Rag1 a1B Kb7 Nb1 Qe2 Ra2 Qd3 Be5 R1g2 Rb2 Qe2 N6e7 Bg6 Rh7 Bf7 Rh6 Rg7 Bhf4 R2g3 Ng6 Be7 Bb8 Qf1 Bfc7 Bd6 Nf4 Qe2 Rg6 h6 Rg5 Qd3 Ng6 Ne5 Ka3 Qb5 Rh5 Nc4+ Ka2 Nf4 Na1 Ne3+ Ka3 Ba2 Nb3 Ne6 N8e7 Qb6 Ng8 Nc4+ Ka4 Qb5+
q5Bk/br1P3Q/NN1r1qb1/brQ3B1/1b1P1R2/2rPb2R/5N1K/4N1r1 b - - 0 1 illegal: No possible last move, all moves rejected
8/1Q2qP1b/2B3r1/nBR2qQ1/5Q2/qNkn1Pn1/1bP2p1R/1KNbr1Q1 b - - 0 1 legal: proof: d4 b5 h4 e5 e4 c5 a4 cxd4 axb5 g5 hxg5 f6 Be3 f5 exf5 e4 f3 Ba3 Kd2 Bf8 Bf2 e3+ Ke2 exf2 Kd3 Kf7 Kd2 Ke8 Kc1 Ke7 g4 Kd6 b4 Kd5 f6 h5 f7 a5 b6 a4 b5 h4 g6 d3 g7 Kc4 g5 d5 b7 h3 b6 a3 g6 d4 Rh2 a2 Rh1 h2 Nc3 Nd7 b8Q Ne7 g8Q Nc5 b7 Bg7 Qf8 Bf5 Nd5 Ra6 Nb4 Kc3 Qf4 Nc6 b8Q Na5 Qb7 Qe7 Qd8 Re8 Nc6 Be4 Rb1 a1Q Qd5 Qa2 Rb5 Qa3+ Kb1 d2 Qdg5 d3 Nd4 Bf6 g7 Bh7 Qc1 d1B g8B d2 Nb3 Nd3 Rf5 Bd4 Rd5 Rg6 Rf5 Nc5 Bb5 Nd3 Bc6 Be2 Rd5 d1Q Rb5 Qf1 Qd1 Qh3 Rc5+ Nc4 Qf1 Qf5 Bb5 Bd1 Ne2+ Kb4 Nec1 Na5 Rg1 h1N Rg2 Ng3 Qg1 Rh6 Rh2 Rg6 Qfb8 Bb2 Qbf4+ Nc4 Bc6+ Kc3 Bb5 Qe1 Nd2 Qfe5 Qfe4 Ra6 Qd8 Bg6 Ndb3 Qf6 Re5 Na5 Qf4 Qe4 Reh5 Qeb4 Qdd5 Re1 Bh7 Qbe7 Re5 Be4 Bf5 Rc6 Bd7 Bh7 Reh5 Rd6 Bdc6 Qg5 Qdf5 Rg6 Q5g4 Qd5 Rf5 Qde5 Qgg5 Q5f6 Re5 Qf5 Rc5+
1B3r2/2Bb2n1/1bn2nR1/qrQpR3/R2n1PP1/Q5PN/b1n5/Nk2RK2 b - - 0 1 legal: proof: d4 b5 a4 g5 axb5 c5 g3 cxd4 Bg2 f5 e3 f4 exf4 g4 Bd5 h5 f3 h4 fxg4 h3 Bg2 hxg2 h4 Kf7 b4 Ke6 c4 a5 h5 a4 c5 Kd5 h6 Ke4 b6 d5 h7 e5 c6 a3 b5 d3 c7 a2 b7 d2+ Ke2 Nc6 b8R Ra5 b6 Rb5 b7 Bc5 Nh3 g1N+ Kf1 Kd3 Qe2+ Kc2 Nf2 e4 Qe1 d1B Rh6 e3 Nd2 Ne2 Nh3 Bd7 c8Q Qa5 Rg6 Ned4 Nb3 Nf5 Ba3 Nf6 Qb4 Ng7 Ra8 Rf8 h8R Bb6 Rb1 a1N b8B Qa7 Rh5 Qa5 Re5 e2+ Kg2 e1N+ Kf1 Nf3 Bb2 Nh4 Qa3 Nhf5 Qc7 Nd4 Qc8 Bf3 Rbe1 Bd1 Qc7 Kb1 Ra7 Nd8 Qcc5 Nac2 Na1 N8c6 Bc7 Qc3 Ra4 Qa5 Bc3 N2b4 R1e2 Bb3 Bb8 Nbc2 R2e3 Qa6 Ba5 Ba2 R3e4 Ba7 Bac7 Bb6 Re3 Qa5 Re1+
2BrRR1N/P1bb1K1Q/1PbNP3/1Q1b3B/r2qn3/1N1p4/n7/r2bN1k1 b - - 0 1 legal: proof: f4 e5 fxe5 h5 d4 c5 g4 cxd4 gxh5 Qf6 Bf4 Qg5 Bc1 Qd8 b4 a5 c4 b6 c5 Bd6 Bd2 Be7 cxb6 Bc5 b5 Bf8 Bb4 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 g5 a4 g4 h4 g3 e6 b3 e7 g2 e8B d3 e4+ Kd4 h6 Ke3 h5 Kf2 e5 d5+ e6 d4 b7 d2 h7 b2 h6 Na6 b8Q Nf6 a5 Bd6 Qc2 Ne4 Nf3 g1R Ne1 Nb4 a6 Bc7 b6 f6 Bh5 Na2 a7 Bd7 Qa4 d1B Nd2 b1B Ba6 d3 Qb7 Bbc2 Rb1 Bb3 Qb5 Bd5 Nb3 Rhg8 h8N R8g4 h7 Rf1 Rh2+ Kg1+ Rf2 Rf4+ Kg6 f5 Rc1 Qh4 Rc5 Rd8 Rc6 Rg4+ Kf7 f4 Rc3 f3 Rc5 B5c6 Rg5 Bd5 Rg8 B5c6 Re8 Bd5 Rc2 f2 Rc5 B5c6 Rg5 Bd5 Rgg8 B5c6 Rgf8 Rf4+ Kg8 Qf6 Nf7 Qd4 h8N Rh4 Nc2 Re1 Nd6 f1B Kf7 Bg2 Qa8 Rg4 Qb7 Nd2 Qa8 Qe4 Qe5 Bb5 Rg8 Bdf3 Rgf8 Ra1 Bc8 Bd1 Ne1 Qd5 Qf5 Ra4 Qe4 Qd4 Qad5 Bbc6 Qc5 Bh1 Qef5 Bhd5 Qh7 Ne4 Qb5
R3Rr2/1p5Q/1n1nk3/2Qrbq2/bN1b4/5Br1/Pn3rPP/R2NR1KB b - - 0 1 illegal: Other
rb3q2/8/R1r2RrB/5k2/P2R1pNb/PRqrn1B1/Qn2PK2/r3N1Q1 b - - 0 1 legal: proof: f4 e5 c4 exf4 b3 d5 cxd5 a5 Ba3 a4 bxa4 Bc5 Bc1 Bf8 g4 h5 Qb3 f5 Bh3 f3 Qc2 f4 Qd1 Bf5 gxf5 Nc6 Bg4 hxg4 Qb3 Nb8 Qc2 Ke7 Qd1 Ke8 d4 Kd7 h4 g5 d6 b5 f6 Ke6 a3 c5 d5+ Kf5 d7 b4 d6 c4 h5 f2+ Kf1 g3 f7 g4 h6 b3 h7 b2 Kg2 f1R Ra2 c3 Rh2 c2 Nf3 Ne7 Rh1 Na6 Bd2 c1Q Be1 Nb4 Nbd2 b1R Ne4 Ra1 Nf2 Nd3 Rh6 Qc3 Rb2 Nd5 Rb3 Be7 f8B Bh4 Qd2 Qdf6 d8Q Nb2 d7 Rg8 h8R Rg6 Bg7 Qf8 Qb6 Rc6 d8R Rh1 Rg6 Rh3 Bh6 Ne3+ Kg1 g2 Rd4 Rg3 Rh7 Rh3 Ra7 Rg3 Ra6 Rh3 Ne5 Rf3 Ned3 Rg3 Kh2 g1B+ Kh1 Rf3 Re6 g3 Ng4 Bf2 Qa7 g2+ Kh2 Nbd1 Qa2 g1R Rg6 Rg2+ Kh1 Bg1 Bg3 Nb2 Rgd6 Nd5 Ne1 Rd3 Rdb4 Bc5 Rd4 Ne3 Qg7 Ba7 Rg6 Rh2+ Kg1 Rh1+ Kf2 Bb8 Nc2 Rhc1 Ne1 Re6 Qb7 Rd6 Qg2 Rb6 Qg1 Rc6 Rg7 Rg6 Rf7+ Bf6 Qg2 Qc2 Rh7 Bh4 Qg1 Qd2 Rhd7 Rcc6 R7d6 Qc3 Rf6+
b1QBQb1b/3Pr3/N1B2q1n/1B1Bkb2/1nK4N/2P3pP/r3n2R/3R1q2 b - - 0 1 legal: proof: b4 b5 g4 c5 f4 h5 gxh5 e5 bxc5 exf4 a4 d5 axb5 d4 c3 d3 Qc2 dxc2 d4 Kd7 Kd2 Ke6 Kd3 g5 e4 f5 b6 a5 d5+ Kf6 h6 f3 h7 f2 c6 g4 h3 a4 d6 f4 c7 f3 b7 g3 Bg5+ Ke5 Rh2 c1N+ Kc4 a3 Nd2 a2 Nb3 Na6 b8Q Ne2 Rd1 a1B Nc5 Bf5 c8B Nb4 Bb7 Bb2 Na6 Bg7 Qc8 Nh6 Bd5 Re8 h8Q Re7 Qe8 Ba3 Bg2 f1B Bh4 f2 Nf3+ Kf4 e5 Bh8 e6 Raa7 Bh1 Bg2 Bf6 f1Q Nh4 Bge4 Bg5+ Ke5 Bf3 Rf7 e7 Rh7 Bc6 Qb6 Bb5 Ba8 Bd5 Rf7 Qed8 Rh7 e8B Rhe7 Bec6 Qbf2 d7 Qb6 Bb7 Qf6 Qe8 Bc1 Nc5 Ra2 B7c6 Be3 Na6 Bc5 Rf2 Re6 Rh2 Bf8 Be3 Re7 Bb6 Kd6 Ba5 Ke5 Bd8
q1q5/1P2nKP1/Pn1Q2N1/kQ2rRb1/p7/3qr1NB/rr2Q1Q1/rB5R b - - 0 1 illegal: No proof kernel
1k2r3/2q1Rb2/q6b/B1PR1b1P/q5r1/Q1B2r2/QQp1Pq2/KnN1N2Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 b4 c4 Nc6 Bg2 Nd4 Bc6 Nb5 axb5 Ke7 Bd5 d6 c6 Ke8 Be6 d5 c5 Bd7 Bf5 Be6 Bd3 Bc8 Bc4 dxc4 h4 a5 d4 g5 Kd2 f5 Kc2 g4 Kb2 a4 h6 c3+ Ka2 b3+ Ka3 b2 Ka2 a3 c7 Kd7 d5 f3 h7 f4 h5 c2 d6 g3 b6 g2 b7 f2 b8B f1R Rh4 f3 Qd2 f2 Qe1 Bh6 Nc3 Nf6 Bd2 Nd5 Nf3 g1Q Rd1 Rg8 h8Q Qg6 Re4 Kc6 d7 Kb7 Ba7 Qa6 Bb6 Rg4 Ba5 Qe7 d8Q Bf5 Qd7 Re8 Qe6 Qed6 Qf7 Qdb6 Re7 b1B+ Ka1 Ka8 Na2 Nc3 Nc1 a2 Qd5+ Qc6 Kb2 Kb7 Qb3+ Ka7 c8Q+ Qc7 Qce6 Ka8 Qb4 a1Q+ Kb3 Qa4+ Kb2 Ba2 Qa3 Bb3 Ka1 Nb1 Qb2 Bd5 Bdc3 Bc4 Qg6 Bf7 Qba2 Kb8 Rd5 Rfg1 Qc6 R1g3 Qh1 f1Q Ne1 Rf3 Qg6 Qf2 Qb6+ Qab7 Qbb2 Qbb5 Nb3 Qa6 Nc1+
1B1Nq3/PQbP3K/1b1R3Q/1R2R2r/1NPb1r2/3R3k/r3p1Bn/1r4rb b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g3 d5 g4 hxg4 Na3 c5 Nb1 Nd7 d3 Nb6 cxd5 c4 Qb3 c3 Qd1 Nc4 dxc4 Rh7 Bd3 Rh6 Bf1 Rh8 Ke2 Kd7 Kd3 e5 Ke4 g5 f4 b5 a4 g3 h4 b3 h5 b4 a5 b2 f6 c2 Kf5 e4 Kg6 b3 d6 Ke6 a6 e3 h6 e2 f7 g4 h7 g2 a7 g3 f5+ Ke5 f6 Qe8 d7 Qe7 Na3 b1R Rh5+ Ke4 Nh3 Kf3 Rb5 Kg4 Bf4 g1R Bg2 c1B Nc2 b2 Ra3 Qe8 Bb8 Bg7 Nf4 Bb7 Rd3 Ra1 Nb4 b1R Ne6 Bf4 Nd8 Bc7 Qb3 Nh6 Bf3+ Kh3 Re5 Rf8 h8R g2 Kh7 Ra2 Rg8 Bh8 Rgg5 Ng4 Rb5 Nh2 Rge5 Rgf1 Rd6 g1B Qb2 Rg8 f8Q Bgb6 f7 Rgg1 Qg7 Bd5 f8R Bb7 Qg6 Bg7 Rff5 Rf2 Re3 Bgd4 Rd3 Bd5 Re5 Bb7 Bh5+ Rf3 Qh6 Bc6 Rd2 Rf4 Rd1 Bh1 Bf3+ Rh4 Rd2 Rh5 Rd3 Bf2 Rbc5 Nf1 Na6 Qe7+ Nf7 Ba5 Qb7 Bd4 Nb4 Bab6 Rcd5 Nh2 Rb5 Bd8 Bc7 Rc8 Bb8 Bdc7 Rg5 Rf8 Rge5 Qe8 Nd8 Rf4 Bg2+
1Q3q2/4bn1r/5P1n/PR1n1k1n/p2rr1qP/4BN2/1R1rB3/KQ1B2NB b - - 0 1 legal: proof: e4 f5 d4 fxe4 a4 h5 g4 hxg4 a5 c5 dxc5 Rh4 Ra4 Rh3 Ra1 Rh8 a6 Qa5+ b4 b6 Be2 Bb7 axb7 Qb5 Bf1 a5 Bg2 a4 Bf1 Qa5 bxa5 Rh7 Nf3 Rh4 Ng1 Rh8 Kd2 Kf7 Kc3 Ke6 Kb2 g5 f4 d5 h4 b5 c4 g3 c6 g2 c7 d4 c8B+ Nd7 b8Q d3 c5 d2 c6 e3 c7 b4 Qa7 b3 Bb5 e2 Nf3 e1R Qc5 g1Q Qb4 g4 Qc4+ Kf5 Qd3+ Re4 Qc4 e5 Bc6 g3 Qb5 g2 Bd5 Nh6 Qb7 Qf1 Qc6 g1Q Ra3 Qg4 Rg1 Rh7 Ba6 Be7 Nc3 Nf6 Qb7 Rd8 Ne2 Nh5 c8B+ Rd7 Qe1 d1R Be3 Rdd4 Ka1 Rd2 Qb1 b2+ Ka2 Qf2 Rb3 Qf1 Rb5 Rd4 Qc2 b1N Ka1 Nc3+ Qb1 Qf2 Bb3 Nd5 Qb8 Rd2 Bcb7 Rd6 Ba7 Qc5 Rc1 Qc8 Bc2 Qf8 Be3 Nc3 Ng5 Kg6 Rb2 R6d4 f5+ Kf6 Ng1 Rf4 Bd1 e4 Bf2 e3 Nf7 e2 Be3 e1N Bae2 Nd3 Ng5 Ne5 Bh1 Nef7 N5f3 Nd5 Rc5 Rfe4 Rcb5 Kg7 f6+ Kg6 Nh3 Kf5 Nhg1
2NR4/2N5/q1rp1Q2/P1P1nKN1/B2q4/q2NBnQn/Pb1q2bk/3nR3 b - - 0 1 legal: proof: g4 a5 b4 b5 bxa5 f5 d4 g5 f4 c5 fxg5 cxd4 h4 f4 g6 Ra6 e4 Rc6 g5 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Kf2 h5 Kf3 e5 Ke4 Ke7 c4 Kd6 f6 f3 f7 b4 g7 h4 g6 b3 Bf4 f2 Be2 f1Q Qe1 h3 Qd2 h2 Qd1 d3 Qd2 b2 Qe3 d2 Bg5 d1N Nh3 Ne7 g8Q Nbc6 g7 Nf5 Bh5 Nfd4 Qb3 Nf3 Na3 b1Q+ Qc2 Qb4 Nb1 Rh6 Bg4 Bb7 Qf2 Qa3 Kf5 e4 Nd2 e3 Nf4 e2 Nd3 e1Q Be3 Nce5 c5+ Kd5 Bh5 Rc6 Ne4 Qd2 Ng5 d6 Rg1 h1N Rb1 Ba8 Rb8 Bb7 Qg3 Nhf2 Qh8 Nh3 g8N Bg7 f8N Qc8+ Nfe6 Qff2 Rf1 Ba8 Rg1 Qa6 Re1 Bf6 Rd8 Qg1 Bf4 Qd4 Be8 Rb6 Rg1 Q4b4 Re1 Nfg1 Nh6 Ng6 Kg4 Bb2 Rb8 Qd4 Ba4 Ne5+ Kf5 Bc6 Be3 Ba8 Rd8 Bc6 Nh7 Ba8 Kf6 Ke4 Nc7 Bd5 Nf5 Rc6 Qg5 Kf3 Ne7 Be4 Nc8 Bd5 Qh4 Kg2 Ng5 Kh2 Kf5 Bg2 Qf6 Ngf3 Qg3+
R2Qb1r1/3nP3/4Q1N1/1P4b1/2NB1pr1/n1kPB2K/1r3bRb/3b1BBr b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 e6 f5 exf5 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Kd8 Ra3 Ke7 Ra1 Ke8 e4 Ke7 b4 Kd6 g6 Ke5 b6 Kd4 e5 c5 b7 a5 b5 h5 d3 f5 e6 a4 g7 g2 Kf2 a3 Kg3 h4+ Kh2 g3+ Kh3 c4 d6 c3 d7 c2 d8B a2 Nc3 Nd7 b8B Bd6 e7 Ngf6 g8Q Ne4 Bh6 c1B Bf8 Bg5 Qh7 Nd2 Qf7 Nc4 Bbc7 Rg8 Qb1 Na3 Qd1 f4 Qb1 Bc5 Qc2 Bb7 Ba5 Bf3 Nd5 Bd1 Bab6 Ra4 Bh6 Rb4 Qe6 Rb2 Ba7 Bb6 Qc7 Bc5 Ne3 Kc3 Nc4 Bf2 Nf3 g1R Bc5 g2 Rh2 Rh1 Be3 g1B Rb1 a1R Nfe5 Raa2 Qb8 Ra1 Bdb6 Raa2 Qd8 Ra1 Kg2 Raa2 Bg7 Ra1 Rh3 Bh2 Rf3 Rg1+ Kh3 Rg4 Bbc5 Rc2 Rb4 Rb2 Ra4 Rc1 Rg3 Rcb1 Kg2 Rc1 Ra8 h3+ Kh1 Ra1 Ng6+ Ne5 Qb8 Bhg1 Qd7 h2 Kg2 h1B+ Kh3 Bc6 Qbd8 Bh2 Bg2 Bb3 Bc1 Bfg1 Qe6 Be8 Bf2 Ba4 Bce3 Rc1 Bf8 Nd7 Bg7+ Kb4 Bgd4 Rf1 Bf3 Bd1 Rg2 Re1 Be2 Kb3 Ba7 Kc3 Bac5 Bg3 Bb6 B1h2 Bbc5 Rh1 Bg1 Be1 Bf1 Bf2 Bcd4+
3Q1rNK/3k1bQ1/P1pB1P2/p4RqP/1n2n1N1/q1rb4/Bb2QR2/4Q2q b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b4 Na6 a4 Nb8 b5 Nf6 b6 axb6 Qe2 Ng8 Qg4 Na6 Qd1 Nb8 a5 Kd7 a6 Ke8 Qa4+ Qd7 Qb4 Qd8 Qa5 bxa5 Ke2 g5 Kd3 b5 Kd4 e6 Ke5 b4 d4 c6 f4 g4 h4 g3 d6 g2 d7+ Ke7 f6+ Kf7 h6 b3 f5 b2 h5 Qb6 d8Q Qc5+ d5 Ne7 h7 Bg7 Bc4 Qb6 d6 Rg8 h8Q Re8 d7 Qb4 Nf3 g1Q Bf4 Qg2 Ba2 Nd5 Rh2 Qg5 Rf2 Qa3 Nc3 b1B Ne4 Nb4 Nh2 Bd3 Ng4 Rf8 Qc7 Ra7 Rg1 Rb7 d8Q+ Bd7 Qb6 Be8 Qb5 Re7 Rgf1 Nd7+ Kd4 Nc5 Bd6 Rb7 Ke5 Rb8 Qc4 Rb6 Qc3 Rb8 Qe1 Rb6 Nc3 Ne4 Nd5 Rb5 Qe2 Rc5 Qe1 Rc3 Ne7 Bd7 Ng8 Bc8 Qb6 Ke8 Qbe3 Bd7 Qf3 Kd8 Qfd1 Be8 Qde2 Bf7 Qh6 Bh8 Qg7 Kd7 Qh6 Bg7 Qb1 Qgc1 Qee3 Nc2 Qg6 Bh6 Rf3 Rb8 R1f2 Be8 Rf4 Nd2 f7 Kc8 Kf6 Nb4 f8Q Kd7 Qb2 Bf7 Qfg7 Rf8 Qe5 Qh1 Qe4 e5 R4f3 Be3 Qg5 Bf4 Q7h6 Be3 Kg7 Bf4 Qe3 e4 Kh8 Qh4 Qgf6 Qg5 Qe1 e3 Qeb1 e2 Qhg7 e1Q Q1a1 Qg1 Qe1 Ne4 Qbe2 Bc1 Rf4 Bb2 Qe7+ Kc8 f6 Qg2 Rf5 Qh1 Qb7+ Kd8 Qa8+ Kd7 Qd8+
1n3Q2/k4pp1/1rRN1N1P/2KPr1b1/1N1PB3/1q4BR/2b1bnN1/3Q1q1q b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 e5 f4 exf4 a4 axb4 axb5 Be7 Ra6 Bc5 Ra1 Bf8 Kf2 Kd7 e4 c5 h4 Kc7 b6+ Kb7 e5 f3 Ke3 b3 h6 c4 Kd4 c3 e6 c2 e7 f2 e8N b2 h7 Qg5 h5 Ba3 h6 Na6 Ne2 Nf6 Bg2 f1B Be4 Be7 Nf4 Be2 Na3 b1Q Ng2 Qh5 Nb5 Rb8 Rh3 Ng4 Nf6 Re8 h8Q Nf2 Qf8 Bf5 Nd6+ Ka8 b7+ Ka7 d3 Qb3 Bf4 c1Q Bg3 Bd8 Ra4 Re5 Rc4 Bg6 Rc6 Bf5 Qc2 Qf1 Qd1 Be7 Nfe8 Bg5 Nf6 Rbe8 b8N R8e6 Nbd7 Bh7 Nc5 Nb8 Na6 Bf5 Kc5 Qf3 Nf4 Q3h1 d4 Bh7 Ng2 Bf5 Bf3 Bg6 Nb4 Bc2 Nc4 Rd6 Be4 Rde6 Rc8 Ra6 Rc6 Rb6 Nd6
R6b/q1pBQ2K/4n1PN/B3PNQq/2Pn1r2/3knb2/1B1p1B2/2r3qR b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 e5 dxe5 f5 exf5 b6 a4 b5 axb5 axb4 Rh2 Kf7 Kd2 d5 Ke3 h5 Kf4 h3 c4 d4 g4 b3 b6 b2 b7 h4 f6 Ke6 Kg5 d3 Kg6 d2 f4 Qd4 g5 Bg7 f7 Nd7 f8Q Ngf6 b8B Bb7 Nf3 Nd5 Nc3 b1Q+ Ne4 Nc5 Bb2 Ra3 Ra2 Rc3 Ba7 Qf2 Qd8 Rf8 Kh7 Kf5 g6 Bh8 Nf6 Qa1 Ng8 Ke4 f5 Qg1 f6 Rc1 Bg2 Kd3 f7 Ba8 Bh1 Ne6 Bf2 Bb7 Qe8 Ne3 Ra8 Qa7 Qe7 Bd5 Nd4 Be4 Rg2 h2 Nh6 h3 Qg4 Bd5 Rg3 Bc6 Bd5 h1Q Qgg5 h2 Rh3 Qf3 Rh5 h1N Rh2 Bb7 Bc6 Qh5 Bd7 Ng3 Rh1 Bf3 Qe8 Rg8 f8B Ne2 Bb4 Rf8 Qee7 Rf4 Nf5 N2d4 Ba5
5N1k/1PK1bn2/2Rp2B1/1QqR1Q2/rB1n2bq/BpP4r/2B1Pb2/5q1N b - - 0 1 legal: proof: b4 a5 g4 e5 a4 h5 gxh5 b5 f4 exf4 d3 c5 d4 cxd4 bxa5 b4 Ra3 Qg5 Ra1 Qb5 axb5 Ke7 Bh3 Kd8 Bf1 Ke8 Kd2 f5 Kd3 Kf7 Kc4 g5 Kd5 Kg7 h4 d6 a6 g4 b6 b3 h6+ Kh7 h5 d3 a7 f3 Bg2 f2 Nf3 f1Q Ne5 d2 Ng6 f4 Ba3 f3 Nc3 f2 Qb1 g3 Be4 g2 Nd1 Nd7 Kc6 g1B Kc7 Rb8 a8B Qe1 c3 f1Q Bc2 Ne5 Bae4 Be7 b7 Bh3 Nf2 Nf6 Nf8+ Kg8 h7+ Kg7 Bg6 d1Q Rh2 Bd7 Nh1 Nc6 Rf2 Bh3 Rf5 Bf2 Rd5 Qd4 Bb4 Qc5 Ra6 Nd4+ Rc6 Nd7 h6+ Kf6 Ba3 Ra8 Bb4 Ra4 Ba3 Rg8 h8B+ Rg7 h7 Ne5 Bb4 Bg4 Ba3 Kg5 Bb4 Kh6 Ba3 Rf7 Bf6 Rg7 h8Q+ Rh7 Bh4 Nf7 Qe5 Rh8 Qf5 Kg7 Qd3 Bh3 Qb5 Bg4 Bb4 Kg8 Bg5 Rh3 Bc1 Kh8 Bca3 Qc1 Bd1 Qh6 Qf5 Qh4 Bc2
2B1N2N/PN1q2QK/q1n4P/2b2P1N/1Qkq1pR1/r4b2/1r4p1/1Bn1b1R1 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 gxh5 d5 cxd5 e5 Qb3 Ke7 Qd1 Ke8 f4 Ke7 Qa4 f6 Qe8+ Kd6 Qf7 Ra3 Bb2 Ra7 Bd4 Ra8 Be3 Ra3 f5 Ra8 Bf4 exf4 Qxf6+ Be6 Qf7 Bc8 Kf2 Kc5 Kf3 b5 Kg4 g5 h4 b3 d4+ Kb4 a4 c5 e4 c4 d6 b2 a5 c3 d5 c2 a6 c1B e5 Be3 e6 Bg7 e7 Bh6 e8B Bc5 d7 Be7 a7 Na6 d6 Nc5 Nc3 b1Q Nge2 Qb2 Ng3 Bhf8 h6 Rb8 Kh5 g4 Kg6 Nd3 h5 Bb7 h7 Bf3 Nd5+ Kc4 Rh4 b4 Qg7 b3 Nf6 Qd4 h6 b2 Bg2 b1Q Ngh5 g3 Rg4 Qb5 Rg1 Qa6 Bf1 Qdc8 d8N g2 d7 Bb4 Nb7 Bfc5 d8Q Qcd7 Qa5 Be1 Be2 Rc8 Bd1 Rb8 Bc2 Nc1 Bb1 Rc8 Qa3 Rc6 Bf7+ Re6 Be8 Re3 Qa5 Ra3 Qd2 Qdb5 Bd7 Qbc6 Bc8 Ne7+ Kg5 Qcb5 Ne8 Nc6 Kg6 Rf8 h8N Rf7 Nd8 Rb7 Kh7 Qba4 Qa5 Rb2 Nb7 Qd7 Qd2 Qd1 Qa5 Q1d4 Qb4+
1N6/1R2nP2/B1qQn2k/qn2Q2b/2BQ1P1r/2p1QP1q/1p1r2N1/rR2K3 b - - 0 1 legal: proof: e4 f5 exf5 a5 b4 axb4 c4 d5 cxd5 h6 g3 e6 Bb2 Be7 Bf6 Bd6 Bg5 Bf4 gxf4 hxg5 d4 Kf8 a4 b5 h4 c5 h5 c4 a5 b3 f6 g4 d6 g5 f7 Kg7 d7 c3 f3 e5 a6 b4 d5 e4 a7 b2 d6 b3 Rh4 e3 Ra6 g3 Bd3 g4 Qc2 e2 Nd2 b1N Nc4 g2 Qd2 g3 Qe3 b2 Rh1 Qa5 d8Q Ne7 d7 Nbc6 Rb6 Nd4 Rb7 Na3 Qe8 Ne6 d8Q Rh6 Qd6 Nb5 Qed7 Rb8 a8B Rh8 Qe8 Kh6 Qee5 Bd7 Ne3 Rd8 Bc4 Bc8 Qb8 Rd2 Qbd6 Rg8 Qed4 Rg4 Q4e5 Rh4 Qed4 Kh7 h6 Kg6 h7 Kh6 Nh3 Bd7 Ng5 Bc8 Rf1 g1R Ne4 g2 Nf6 Rgh1 Q4e5 g1Q Ng2 Qgb6 Nd7 Qc6 Nb8 Rg1 Qe3 Rgh1 Qh8 Bd7 Qhe5 Rg1 Kf2 Rgh1 Rb1 Rg1 Kg3 e1Q+ Qf2 Qee4 Qe3 Qac7 Rf1 Qa5 Ra7 Rgh1 Bb7 Qf5 Ba6 Bc8 Rb7 Bd7 Rf2 Ra1 Rf1 Bc8 Rb1 Bd7 Qe2 Qh3+ Kf2 Bc8 Ke1 Bd7 Qa3 Nf8 Q2e3 Bg4 Qad6+ Ne6 Q5d4 Bh5 h8Q+ Kg6 Qhf6+ Kh7 Qf5+ Kh6 Qfe5
4B1R1/PQ3R1k/q2q2r1/b1pr1Q2/qN2B1PK/R1pn1P1b/4bNR1/7r b - - 0 1 legal: proof: c4 a5 e4 d5 b4 dxc4 bxa5 f5 exf5 g5 Na3 g4 Nb1 g3 h4 Kd7 f3 Ke8 Ke2 Nc6 Bb2 Ne5 Bd4 Nf7 Bf2 gxf2 g4 Ng5 hxg5 Be6 Na3 Bd7 Nb1 Bc8 a4 Kf7 d4 Kg7 g6 b5 d5 e5 d6 h5 a6 c3 a7 e4 d7 b4 a5 h4 a6 e3 Ra4 h3 Ra1 b3 Qe1 b2 Ra3 h2 Nh3 Nf6 Rg1 h1R Rg2 Ne4 f6+ Kg8 g7 Rh5 f7+ Kh7 Qd1 Rd5 Qc2 Bb4 f8R c5 Rf7 Ba5 Qb3 Qf6 d8Q Qd6 Qg5 Rb8 a8B Rb6 a7 Ba6+ Qb5 Rc6 Nd2 b1Q Nf4 Qa1 Nd3 Rb6 Nb4 Qa2 Bc6 Qc2 Be8 Qa4 Nb3 Rc6 Nc1 Rb6 Ncd3 Rc6 Qb7 Bb5 Rg1 Ba6 Bg2 f1B+ Ke1 e2 Nf2 Nf6 Bh3 Nd7 Rg2 Ne5 Qf4 Qh6 Qf5+ Rg6 Ne4 Qd2+ Kf2 Nd3+ Kg3 e1Q+ Nf2 Qe6 Kh4 Bc4 Rh2 Qa6 Bg2 Be2 Bf1 Rg1 Rg2 Qf4 Rf6 Qfd6 Rf7 Rh1+ Rh2 Nf4 Rh3 Bd1 Bd3 Bb5 Bb1 Bf1 Rh2 Bde2 Be4 Bh3 Rg2 Nd3 g8R+
2qQ2n1/kP2n3/rrr1R1N1/2Pr2P1/q5Bb/1p4Rr/3QQp1Q/2B1N2K b - - 0 1 legal: proof: b4 a5 h4 e5 a4 g5 hxg5 b5 f4 exf4 d3 c5 d4 cxd4 bxa5 b4 Ra3 Ba6 Ra1 Bb5 axb5 Bc5 Bb2 Bd6 Bc1 Bf8 Kf2 d5 g4 Kd7 Kg2 Kc8 e4 Kb7 c4 f5 g6 h5 g7 d3 e5 h4 c5 h3+ Kh2 d4 e6 f3 e7 f2 e8Q d2 b6 d3 Qb5 f4 Be2 f1R Na3 f3 Nc2 f2 Ne1 Be7 Ngf3 Ra6 Rg1 Qc8 Kh1 h2 Nh4 Nc6 Ng6 Bh4 g5 Rh6 Bg4 Nce7 Ra4 Ka8 b7+ Ka7 Ra1 Rc6 a6 b3 Qc2 d1Q Qd2 Qc2 Ra4 Qa2 Re4 Qa4 Re6 Rb6 Qe8 Rc6 Qd8 Rb6 Qe2 d2 Qd5 d1R Qdd2 Nf6 g8Q Rc6 Qc2 Rd5 Qh8 Nfg8 Qcd2 Rb6 Nc2 Rd1 Ne1 Rdd6 Rg3 Rdc6 Kg2 h1R Qhe5 Rh3 Qh8 Kb8 a7+ Kc7 a8Q Ra6 Qde3 Rd5 Q3d2 Rab6 Qaa5 Kb8 Qh7 Ra6 Qd8 Ka7 Rc3 Rf3 Kh1 Rcb6 Qh8 Rfd3 Qhe5 Rh3+ Qh2 Rc6 Nh8 Rg6 Rg3 Rf6 Ng6 Rcb6 Re5 Rfc6 Re6
Rrq1Q1n1/Q4P2/8/b2p2PP/Br1p2Rn/rQ6/QnN3Br/1NK2kq1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 Be3 h5 Bf2 h4 fxg5 Bb7 Bg3 hxg3 e3 f4 e4 Bd5 Ra3 Be6 Ra1 Bf5 exf5 Rh6 Be2 Rh7 Bf1 Rh8 Kd2 Kf7 h4 d5 b4 e5 c4 a5 b6 e4 b5 g2 g6+ Kf6 b7 Ke5 f6 a4 g7 e3+ Kc2 Ke4 c5 a3 f7 a2 b6 f3 c6 e2 g5 Ke3 c7 Kf2 c8B e1N+ Kc1 Bb4 Qa4 Ba5 Bd7 Nc6 b8Q Qc8 Qa7 Rb8 b7 Nce7+ Qc4 Ng6 h5 Nh4 Ba4 Rh6 Rh3 Rb6 Rg3 Rb4 Rg4 Nd3+ Kd1 Ra8 b8Q Nb2+ Kc1 Ke1 Qg3+ f2 Qb3 Rab8 Nh3 g1Q Nf4 Ng6 Bg2 f1R Nd3+ Ke2+ Ne1+ Kf2 Qd1 Nh4 Nc2 Re1 Qb3 Re3 Qa3 Rh3 Qb3 Ne7 g8Q Rh2 Qd8 Ng8 Qe8 Qe1 Nd2 Qe3 Qe2+ Kg1 Rb1 a1R Qea6 Ra2 Ra1 Ra3 Qac4 Qg3 Nb1 Qf2 Qa2 Qg3 Qcb3 Qf2 Bh1+ Kf1 Bf3 Qg1 Bg2+ Kf2+ Bf1 Qa6 Qa8 Qc8 Bb5 Raa4 Qaa3 Bc7 Bc6 Nd1 Bg2 Ra5 Qab2 Ra7 Ra5 Bd8 Q2a2 Bb6 Rc5 Ra3 Ba4 Bd8 Ra5 Nb2+ Bf1 Bb6 Qb7 Bd8 Ra8 Ba5 Qa7 Qg2 Be2 Qg1+ Bd1 Kf1 Bf3 Ne7 Bh1 Ng8 Bg2+
1n1BNRq1/NP1r1k2/QP2Rp1K/nbP1n3/2r5/3Nr1p1/1N1Bq3/5Qr1 b - - 0 1 illegal: No possible last move, all moves rejected
b1q2BN1/pbP1Q1k1/2B3qp/1R3rb1/PB4BR/P2b1n1n/6n1/1QN4K b - - 0 1 legal: proof: h4 c5 d4 cxd4 e4 b5 f4 e5 fxe5 f5 exf5 g5 Na3 gxh4 Nb1 Na6 a3 Rb8 b3 Rb6 Bg5 Rc6 Bd2 Rc4 Bc1 Ra4 bxa4 Qe7 Nc3 Qf6 Nb1 Qd8 Kf2 Kf7 c4 d5 g4 h6 Kg2 h3+ Kh2 d3 g5 d2 e6+ Kg7 g6 b4 c5 b3 c6 d4 c7 d3 e7 b2 e8B Nb8 Qh5 d1N Be2 d2 Bd7 Nf2 Nc3 b1B Ne4 d1Q Bd2 Bb7 Nf6 Bd3 Qg5 Qc2 Bb4 Qc8 Bg4 Ne7 Ng8 Nd5 Bc6 Be7 Ne2 Nf4 Rab1 Nd7 Nc1 Ng2 Qh4 Ne5 f6+ Kf8 g7+ Kf7 Kg3 h2 Rb3 Kg6 f7 Nf3 Rb1 Nh3 Rb3 Bd8 Qe7 Ba8 Bd2 Kh7 Rb5 Kg6 Bb4 Rh7 Re1 h1B Ree5 Rh8 Rh5 Bb7 Rh4 Kh7 Qd6 Bg5 Qe7 Kg6 Nf6 Rh7 g8Q+ Rg7 Qge8 Ba8 Ng8 Kh7 Q8d7 Rg6 Qd5 Rf6 Qa2 Kg7 Qb1 Rf5 Bd7 Ne5 Kh2 Qc6 Be8 Qg6 Bd7 Ne3 Be8 Bhb7 Bc6 Nf3+ Kh1 Ng2 f8B+
K7/pP1b4/1qRR1Pqq/Nn1Q4/1N1Q1BkQ/r2Q2b1/P1pb2q1/6Br b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 b5 g4 Kf7 f6 Ke8 c4 bxc4 dxc5 Bb7 Qe2 Ba6 Qd1 Bc8 f4 h5 f5 Qc7 g5 Kd8 Be2 Qb6 Bf3 Kc7 Bg4 hxg4 Kd2 Nc6 Ke1 Nd8 g6 Nf7 gxf7 Kc6 Kf2 Qc7 Ke1 Qd8 Kd2 Kd5 Kc3+ Ke4 Kb4 d5 Kb5 e5 Kc6 g5 b4 c3 h4 c2 h5 d4 h6 d3 b5 d2 h7 Kf4 b6 e4 Nh3+ Kg3 Nf4 e3 Nd3 e2 Na3 e1B Rh6 Bd7+ Kb7 Bd6 f8B Bf4 c6 Ne7 c7 Nc6 c8Q Nd4 f7 Nb5 Qc7 Rc8 Rc6 Bd6 Qe2 d1Q Nb4 Bd2 Nc4 Qh1 Na5 Qh6 Qd3+ Kh4 f6 Bg3 Bc5 Qe8 f8Q Qeg6 Rb1 Re8 Rb3 Re3 Qf7 Rf3 Qd4 Rc3 Rb1 Ra3 Qcd6 Bgf4 Rb3 g3 Q4e5 Qhg7 Qde6 g4 Qf8 g2 Ka8 g1Q b7 g3 Rd3 g2 Q6f5 Qh2 Qg8 g1Q Rdd6 Bg3 Qd3 Bde1 Bf4 Kg4 Bb6 Qd2 Qb2 Qgg2 Bg1 Qdf2 Qe5 Qb6 Qed4 Bc8 Qgc4 Bd2 Qcd5 Bd7+ Rc8 Rg8 h8Q Rf8 Qh6 Rh8 Qh1 Rh2 Rc3 Q7h6 Rcc6 Q2e4 Qg2 Rh1 Qh2 Qg2 Qh4+
5Q1N/b2B1rr1/Pb1B2R1/n3qRpb/3R2r1/2kp1R1Q/4rP1P/KN5b b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 b5 g4 c5 d4 cxd4 gxh5 Nc6 Qe2 Na7 Qg4 axb4 Qd1 b3 Bd2 b4 Bc1 Nb5 cxb5 Ra5 Qd3 Ra3 Qd1 Ra8 Kd2 Kf7 a4 Kf6 b6 Ke5 b7 g5 b8Q+ Qc7 h6 d5 h7 b2 a5 b3 f6 d3 f7 Kd4 a6 e5 Qe2 e4 Qh5 e3+ Kd1 e2+ Kd2 e1B+ Kd1 d2 Nh3 Ra7 Ra5 Bb7 Qe2 Qe5 Qc7 Ne7 Bg2 Nc6 Qc8 Bc5 f8R Rg8 h8R Rg7 Qf3 Rf7 Rb5 Na5 Nf4 Kc4 Rh3 d4 Rb6 Ba8 Qh5 Rac7 Rf6 Ba7 Rf3 Rg7 Qch3 Rcf7 Qh8 Bc6 Ng6 Bb7 Nc3 b1R Rf1 b2 Kc2 Ra1 Nb1 Ra4 Rg8 d1R R6f5 Bc3 Rg1 Re1 Bf4 Bb4 Q8h6 Bbc5 Nh8 Bcb6 Rh1 Re4 Rd1 Ra2 Bg3 Rg4 Bf1+ Kb4 Bb5 Bd5 Bd7 Bb7 Na3 b1B+ Kc1 B1e4 Nb1 Re2 Qf6 Bc2 Kb2 Bbe4 Rd2 Bd1 Ka1 Bd5 Qe7+ Kc4 Qf8 d3+ Rb2 Kd4 Rb5 Ba8 Rd5+ Kc4+ Rd4+ Kb3 Re3 Bh1 Ref3 Kc2 Na3+ Kc3 Bf4 Qe8 Bd6 Qe5 Nb1+ Kb3 Qg3 Rh4 Qg1 Rd2 Re3 Rg6 Rg3 Bh5 Rgf3 Re2 Qg2 Rg4 Rg7 Kc2 Qh3 Kb3 Rh7 Rgg7 Rh6 Kc2 Rg6 Kb3 Nd2+ Kc3 Nb1+
1nb3Bq/2k1Q1Q1/1r2p2R/1Pp1KP1R/4N1q1/r1P2rB1/r1B3B1/qrN5 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 d5 Nc6 dxc6 gxh4 Ke2 a5 Ke3 h5 Kf4 d5 b4 h3 g4 h4 g5 d4 b6 h2 c3 e3 b5 e6 f3 a4 g6 a3 b7 h3 b8Q a2 g7 d3 c7 Kd7 Bg2 d2 Qb7 e2 Qf1 d1Q Ke5 e1R+ Ne2 Be7 f4 Ra3 f5 Nf6 Qf2 Rf1 Qh4 Rf3 g8B Qa4 Be3 Qg4 Nd2 Qe8 Rab1 a1R Ne4 R1a2 Nc1 Qf8 Bf4 Rh7 Re1 h1R Bg3 h2 Re2 Rd1 Re1 Qfg7 Rh1 Qh8 Rb4 Rd6 Qa7 Rb6 Ra4 Bb7 c8B+ Kc7 Bd7 Rg7 Bc6 Rg5 Bd5 Rh5 Bb3 Rh6 Rf1 h1Q Bc2 Rh5 Rf2 Qe1 Rf1 Rh7 Rh1 Qf1 Qa5 Bc8 Qb4 Qe1 Qg5 Rh5 Qg7 Rg5 Rh7 Rh5 Rh6 Rh1 Ne2 Qa1 Nc1 Nd5 Qc4 Nb4 Ra8 Na6 Rh5 Bb7 Rf8 Rhf1 Rf6 Nb8 Rfh6 Bc8 Qd4 Rd1 Qf2 Rd4 Qe1 Rb4 Qh1 Rbb3 Qh4 Rb1 Qxe7+
B3Q1q1/rp3NBr/1rN1P2r/Pp4N1/q2r1n2/2R5/P1Qb4/1KNR1k1r b - - 0 1 illegal: No possible last move
3Qn1KR/q1N5/2krNPn1/2Q1Rn1P/p3p2Q/bP2B3/1Q1p3n/3br2B b - - 0 1 legal: proof: g4 c5 d4 h5 e4 hxg4 a4 b5 axb5 f5 exf5 d6 c4 d5 cxd5 cxd4 Kd2 Kd7 Kd3 g5 Ke4 a5 Ke5 e6 h4 d3 f4 a4 b6 g3 d6 g2 b7 g4 f6 g3 f7 Rh5+ f5 Kc6 d7 Na6 b8Q Rh6 Ne2 g1N Nf4 g2 Nc3 Ba3 f8Q Nh3 Qe1 g1N Nb5 Qe7 d8Q Qa7 Nc7 Ne7 Be3 d2 f6 Nf5 Bg2+ Nf3+ Ke4 e5 Nfe6 Nf4 Qf2 Rh8 Rae1 Ng6 Rh3 Bb4 Bh1 Nh2 b3 Rg8 Qd4 Be7 Qb2 Ba3 Qh6 Bd7 Qd8 Re8 Qf8 Rb8 Qg3 Rb6 Qc5+ Kb7 Kd5 Bb5 h5 Be2 Qh4 Bd1 Rg3 Rd6+ Ke4 Nf8 Rg8 Ng6 Rh8 Re7 Na8 Nc7 Re2 Ne8 Nac7 Rd3 Re1 Rc3 Kd5 e4 Rg1 Rc1 Rg5 Rf7 Nf8 Rd7+ Ke6 Rd6+ Kf7 Rb1 Nfe6 Rc1 Kg8 Rb1 Qce5 Kc6 Qa5 Bg4 Qae5 Re1 Qa5 Bd1 Qb4 Nd4 Re5 Nf5 Qc5+
1rB2Q2/rBBN2kB/Pp1r1R1q/Q5p1/2K1pn2/q1b1R1P1/NP6/1rb5 b - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 c5 h5 cxd4 Bb5 g5 Bf1 Qb6 a4 Qg6 hxg6 b6 Qd2 Bb7 Qd1 Ba6 Be3 Nf6 Bc1 Bb5 axb5 Ng8 Rh5 a5 Rh1 Na6 bxa6 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 d5 f4 e5 c4 h5 f5 h4 g3 a4 g7 Kf7 c5 h3 f6 d3+ Ke3 d2 c6 a3 c7 h2 c8B a2 Qg4 d1R Ke2 e3 Qd7+ Ne7 Qf5 d4 Nh3 Nd5 Ng1 Bb4 Nc3 Ra7 g8B+ Kf8 f7 Kg7 Rb1 a1Q Na2 Bd2 Kd3 e2 Bh7 e1B Bg2 Nf4+ Kc4 d3 Bgb7 e4 Nf3 Rf8 Rf1 h1Q Qa5 Qh6 Ne5 Be3 Qb5 Bc3 Qa5 d2 Nd7 Re1 Rf3 d1R Rf2 Rd6 Rf3 Nd5 Rf6 Nf4 Bd2 Rh1 Re1 Rd8 Re2 Rb1 Re1 Bb4 Bc3 Bc1 Be5 Bc3 Re3 Re6 Bc7 Rd6 Ne5 Rh8 Bd7 Rb8 Bdc8 B3d2 Nd7 Bc3 Nb4 Qa3 Na2 Rd5 Nf8 Rd1 Nd7 Rd6 f8Q+
2b1rk2/R2BRpp1/bb1K1nqp/2nQ1PR1/1R1NP3/2b5/4PBN1/1q3Q2 b - - 0 1 legal: proof: b4 e5 d3 c5 a4 b5 axb5 cxb4 g4 e4 dxe4 Bc5 g5 Bf8 g6 h6 h4 Rh7 gxh7 Qxh4 Qd4 a5 Rh3 Nf6 Qc4 Ba6 Qc8+ Ke7 Nc3 Nc6 Qb7 Rc8 Qc7 Nb8 Bg2 Re8 Ra3 Bc8 Qd6+ Kd8 Qd5 Bc5 Nb1 Rh8 Bf1 Bf8 Qd1 Ng8 Ra1 Ke8 Rh1 Qd8 Kd2 d5 Kd3 d4 Kc4 d3 f4 d2 b6 a4 b7 a3 Rh5 a2 Na3 b3 Nh3 b2 Nb5 b1Q Nd4 Qh4 Kd5 Qf2 c4 Qb5+ c5 Qg1 Rg5 Qb1 c6 Qb6 c7 Nc6 b8R Qb1 Rb4 Ba6 c8Q+ Nd8 Qf5 Nb7 Kc6 Nc5 Qd5 Bc8 Qe1 d1B Be3 Bb3 Bf2 Qg3 Bg2 Ke7 Qf1 Bc4 Bf3 Qg2 Bg4 Nf6 Bd7 B4a6 f5 Qg4 Nf4 Qg2 Rh5 Qg6 Rg5 Rg8 Ng2 Rh8 Be6 Ke8 Kc7 Bd6+ Kc6 Kf8 Bd7 Be7 Kc7 Bd8+ Kd6 Rg8 h8R Bb6 Ra4 Qb3 Rb1 a1B Rb4 Bc3 Ra1 Qb1 Raa4 Bb5 Ra7 Bba6 Ke5 Ke7 Be8+ Bcb7 Bb5 Rb8 Rc8 Ra8 Rc7+ Kf8 Kd6 Re8 Re7 Bc8 Bd7
2bR2B1/p1r1B1BK/2P1bPBp/2rnQ3/2nn1np1/1QP1k2N/N6n/1R6 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 fxe4 a4 b5 d4 bxa4 dxc5 g5 f4 Bh6 f5 Qc7 f6 Qe5 Be2 Qe6 Bf1 Qf5 gxf5 g4 Bg5 Na6 Bc1 Bg5 hxg5 Nb8 Ke2 Kf7 Ke3 d5 Kf4 e5+ Ke3 d4+ Kd2 h6 b4 a3 c3 e3+ Kd3 a2 Ke4 e2 b5 e1N b6 d3 b7 d2 Ne2 Nd3 Ba3 Nc6 b8Q Nge7 Nc1 Rh7 Qdb3+ Nd5 Rh5 d1B Nd2 Na5 c6 Nc4 Nf3 N3f4 Rb1 a1N Ng1 Nc2 Be7 Nd4 Nh3 Be2 Qc7 Rb8 Na2 Rb5 Qa5 Rc5 g6+ Kg8 f7+ Kg7 Qc7 Bd1 Bd3 Be2 Bd6 Kf6 f8B Bf1 Qa5 Rc7 g7 Be2 g8B Bd1 Nf2 Bc2 Rhh1 Kg5 f6 Bd1 Bde7 Bc2 Qba4 Bb3 Rhd1 Nde3 Bd6 Na3 Qa6 Ndb5 Be6 Nfg2 Bf7 Bbe6 Qd4 Nac4 Bde7 Nf5 Bc2 Nfe3 Kd3 Kf5 Qb6 Kg5 Bg8 e4+ Ke2 Kf4 Bg7 Nh4 Qd5 Nf3 Rd4 Nh2 Nh3+ Kg3 Qe5+ Kg2 Rd7 Nd5 Rd8 e3 Kd3 Kf3 Qb8 e2 Qb6 Nd4 Qb3 Kg2 Ke4 e1N Qa3 Nd3 Qb3 N3f4 Bd3 Bed7 Bc2 Nde6 Kf5 Kf3 Be4+ Ke2 Rb2+ Ke3 Rb1 Nd3 Kg6 N3f4+ Kh7 Nd4 Nf2 Be6 Nh3 Ke2 Bd3+ Kf3 Be4+ Ke3 Bg6+
Q4bbB/1PP1pBb1/p1Q2pB1/4Rn1b/4RPNn/1K1Bnk2/r5r1/7N b - - 0 1 legal: proof: e4 c5 a4 b5 axb5 d5 d4 dxe4 dxc5 g5 h4 gxh4 c4 Qb6 b4 Nh6 c6 Qb7 c7 Ng4 c5 Qc6 bxc6 Nf6 b5 Ng8 Kd2 h5 Kc2 h3 g4 h4 f4 h2 b6 e3 g5 h3 b7 e2 g6 e1B g7 Nf6 g8Q Be6 c8B Nd5 c7 Bc3 c6 Bg7 Qf3 Nd7 Nd2 Ne5 Bd3 Ng6 Nc4 Ne3+ Kb3 Nh4 Ne2 a6 Rg1 h1N Re1 h2 Bb2 Ng3 Ra5 h1B Re5 Ngf5 Ng3 Rh5 Qe4 Bf3 Nh1 Rh8 Re2 Bh5 Qg2 Bd5 Be6 Rh6 c8B Rg6 Qf1 Rg2 Qf3 Kd8 Bcd7 Kc7 Be8 Rd8 Qh8 Nd1 R2e4 Nde3 Bc3 Rd6 B6d7 Rdg6 Be6 Ra2 Bb2 Rg2 Bc3 Nh6 Bf5 Be6 Bg6 N6f5 Qg8 Nd5 Ne3 Kd6 Ng4 Nde3+ Kb4 Bb3 c7 Bc4 Re6+ Kd5 Be5 Bh6 Bh8 f6 Bef7 Bhg7 R4e5+ Kd4 Qc6 Bb3 Bb5 Bc4 Re4+ Kd3 R6e5 Ke2 Kc3 Kf3 Kb4 Bb3 Bd3 Bh6 Kc3 Bfg7 Qc8 Bf8 Qa8 Bhg7 Be8 Bg8 Bef7 Rgf2 Kb4 Rg2 Kb3
K7/n3n2p/1b2RR1P/bNbNN3/4p1B1/pQbP2q1/N1n1b1P1/k1Q2B2 b - - 0 1 legal: proof: c4 b5 b4 g5 a4 bxa4 f4 Nf6 fxg5 Ng8 b5 Ba6 Kf2 Bb7 Ke1 Bc8 c5 a5 Na3 Ra6 Nb1 Rb6 cxb6 d6 Ba3 Nf6 Bc5 dxc5 d3 Rg8 e3 Rg6 Qc1 Ng8 Qc2 Rd6 Qd1 Rd4 exd4 Qd6 Nf3 Qd7 Ng1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 f5+ Kf4 Kd5 h4 e5+ Ke3 e4 g6 c4 h5 c5 g7 a3 h6 a4 b7 c3 b6 a2 Nh3 c4 Qc1 c2 Na3 c3 Nb5 a3 Rb1 Nc6 b8Q a1B b7 Nge7 g8B+ Be6 Bf7 Na7 Bh5 Qd6 Bg4 Bf7 Rb4 Bh5 Rc4 Qc7 Rc6 Bb2 Re6 f4+ Kf2 f3 Ke3 f2 Rg1 Qd6 Nf4+ Kc6 d5+ Kc5 Rh1 Kb4 Kd4 Kb3 Rh4 Qc7 d6 Ka2 d7 Ba1 Nd5 Qg3 Kc5 Bb2 Qe3 c1B Kb6 c2 d8N Bd2 Nc6 c1B Ncb4+ Ka1 Na2 Ba5+ Ka6 Bbc3 Rh3 Qc7 Rf3 Qg3 Rff6 Bb6 Qc5 B1d2 Qc4 Be1 Qbc7 Bed2 b8N Bca5 Kb7 Bdc3 Bfe2 f1N Qb3 Ne3 Ka8 Nc2 Bf1 Qf3 Nd7 Qg3 Bh3 Be2 Ne5 Nec6 Bg4 Bfc5 Qg7 Ne7 Qg5 Nd4 Qd2 Nc2 Qc1#
4nn2/Q2B4/2BRpq2/KP1r1B1r/pP1r2NN/1Pp2n2/1QR5/k1B1r1q1 b - - 0 1 illegal: No possible last move
1b1k1R2/q1bB3r/1PK1BqNr/1p3Qq1/pR4Q1/2BB1P2/bN1P2pb/8 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 c5 bxc5 f5 a4 fxg4 a5 Bf5 Ba3 Be6 Bc1 Bc8 h3 b5 Na3 g5 Bd3 g3 Bf1 Nh6 Nb1 Nd7 h4 Nb6 axb6 g4 Rh2 Nf7 Rh1 Ng5 hxg5 Qd3 Rh4 Qd6 Rh1 Qd8 Ke2 a5 Ke3 e5 c4 h5 g6 g2 f3 h4 g7 a4 g8Q h3 c6 g3 c5 h2 c7 Ra7 c6 Be6 c8B Ba2 c7 Qf6 Ne2 Rh6 Qg4 Bd6 Rg1 h1Q Be6 Qh5 c8B Rah7 Nf4 Kd8 Bd3 Qhg5 Bb2 Bb8 Nc3 Bc7 Rb1 Bb8 Ke2 e3 Ng6 e4 Qc2 Bc7 Rgc1 g1B Nd1 g2 Bcd7 Bgh2 Bc3 Bb8 Nb2 Bbc7 Ke1 e2 Kf2 e1B+ Ke2 Beg3 Rh1 Qgf5 Ke3 Q6g5+ Kd4 e3 Rhe1 e2 Rh1 Bge5+ Kc5 e1Q Kc6 Qc1 Re1 Qff6 Re4 Bef4 Rb4 Qh1 Re1 Bb8 Ree4 Bfc7 Rf4 Qe1 Qb3 Qee5 Qd5 Qe7 Rf7 Qe5f6 Qdf5 Bce5 Be8 Qa7 Rf8 Bec7 Bd7+
2r2qQ1/n1Nk3r/3PP2b/p1p1n1pR/2P1Q3/3p1Q2/3B2n1/N1BQ1rRK b - - 0 1 illegal: No possible last move, all moves rejected
N1k2RB1/1p1rqQp1/1KPn1NR1/B3b3/3pn2Q/n3P2n/Q1p2P2/1Q2r3 b - - 0 1 illegal: No proof kernel
1rR2n1B/2pnbQnr/2P2pN1/3r2P1/2QB1QP1/p3RK2/2n1p3/Q3kN2 b - - 0 1 legal: proof: e4 d5 f4 e5 a4 b5 axb5 Qd6 Na3 dxe4 Nb1 e3 Ra5 e4 Ra1 Qe5 fxe5 Be7 Nc3 Ba3 Nb1 Bf8 g4 g6 Bh3 Bd6 g5 Bf8 Bf5 Be6 h3 gxf5 Ra6 Bc4 Ra3 Be2 Ra1 Bg4 hxg4 Kd7 Nc3 Kd8 Nb1 Ke8 Ke2 Ke7 b4 Ke6 c4 a5 d4 h5 d5+ Kd7 e6+ Kd6 e7 Ke5 e8Q+ Kf4 d6 Kg3 d7 f4 d8Q h4 c5 h3 b6 a4 b5 h2 c6 a3 b7 Rh7 b6 Nd7 b8Q Be7 b7 Nf8 Nf3 Nf6 Q8d3 N6d7 Nh4 Ra5 Q3b3 Rd5 Qc4 Rh8 Re1 h1R Ng6 R1h7 Bb2 Rg8 Bh8 f6 Nd2 f3+ Kf1 f2 Ke2 f1N Qf7 Kg2 Rb1 Kg1 Rb3 Kg2 Qa1 Ng3+ Kd1 Nh5 Ke2 Ng7 Nf1 Kg1 Qa7 Kg2 b8B Kg1 Q7d4 Kg2 Kd1 e2+ Kd2 e3+ Kd3 Kf2 Ke4 Rh6 Ba7 Rh7 Rd1 e1N Rb8 Rh6 Rc8 Nc2 Rd3 Rh7 Qe5 Ke2 Bd4 Kf2 Qf4+ Ke2 Qaa2 Ke1 Kf3 e2 Re3 Nfe6 Ra8 Rb8 Qb2 Nef8 Qba2 Rb6 Rc8 Rb8 Qa1+
4r1r1/K1QR1P1P/5pBN/n1rN1p2/p4nqp/P1B2k1b/p1BR4/Q4B2 b - - 0 1 illegal: No proof kernel
6R1/1npNr2b/q1P1k1r1/B1R3pR/1p1QrBP1/1P4n1/p5p1/1NQ3KR b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 e4 Ne7 exf5 Ng8 a5 Bc5 e6 dxe6 g3 h5 Be2 e5 Bc4 h4 Bf1 h3 Bg2 Bb6 axb6 hxg2 h4 Kf7 f4 a5 Kf2 g5 c4 a4 b3 a3 b7 e4 g4 a2 f6 Qd7 h5 Rh7 h6 Ke6 f5+ Kf7 c5 Rg7 h7 Ra3 h8R Qd5 c6 Qd3 Bf4 Ra7 Nf3 e3+ Kg1 e2 Qc1 Na6 b8R Rg6 R8h5 Nh6 Ra8 Nc5 Ne5+ Kf8 f7 Ke7 f6+ Ke6 f8B Nf5 f7 Ng3 Be7 Ra4 f8Q Re4 Qg7 Nb7 Nd7 b4 Qd4 Qb5 Bc5 Qa6 Bb6 e1R+ Kf2 Kf7 Ba5 Re7 Rb8 R1e4 Kg1 Ke6 Nf6 Bd7 Rg8 Be8 Nd7 Rf6 Na3 Bg6 Rb1 Bf5 Rb2 Bg6 Rc2 Bh7 Nb1 Rg6 Rc5
2bk4/p1q2bRB/NP1NppnR/N2qP1p1/Qp4K1/5P2/3N4/1br3QB b - - 0 1 legal: proof: c4 c5 d4 cxd4 a4 b5 Nc3 e6 Na2 b4 Qb3 Bd6 Nc3 Na6 Nb1 Rb8 Qd1 Rb5 axb5 Bf4 Nf3 Bb8 Kd2 Be5 Kc2 Bf4 Ng1 Bd2 Kd3 Bc3 bxc3 Qb6 Kd2 Qa5 Ke1 Qd8 g4 f6 g5 Nc5 g6 Na6 Bg5 h6 Ra2 hxg5 Ra5 Nb8 Ra1 Nc6 Nd2 Ne5 Nb1 Nf7 gxf7+ Ke7 f8N d5 e4 g4 Ke2 g6 h4 g3 Kf3 d3 h5 d2 e5 g2 h6 d4 b6 d3 h7 Bb7+ Kg4 Qc7 c5 Bc8 c4 Bb7 c6 Qc8 c7 Qb8 c8B Qd6 c5 Ba8 c6 Ke8 c7 Bd5 Ne2 Bc6 Qa4 d1B Nd7 d2 Bb7 Bb3 c8N d1B Rh6 Bbc2 Nd2 Qc7 Nb8 Bd7 Na6 Bb1 Nd6+ Kd8 f3 g1Q+ Bg2 Bc8 Nd4 Ne7 N4b3 Qd4+ Be4 Qd5 Bh1 Bdc2 Na5 Rg8 h8Q g5 Bh7 Bg6 Ra3 Bf7 Rc3 Qcb7 Rc7 Ng6 Re7 Re8 Qf8 Qc7 Qh8 Bg8 Rg7 Re7 Ne8 Bf7 Qf8 Rd7 Qc5 Rd6 Qg1 Rc6 Nd6 Rc5 Kh3 Rc1 Kg4
1kBQ3B/n3pP1p/4p1QN/P1pb1p2/2N2Rbp/5n2/4Nb1P/K1NRq3 b - - 0 1 illegal: No proof kernel
2QB1rB1/r2Bb3/3bQ3/P3P2R/P1n1K3/qN1n1RN1/1k2B2q/1bq1rb1b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 e5 fxe5 c5 d4 cxd4 Kf2 Ke7 h4 Ke6 e4 g5 c4 f5 a4 b5 c5 d5 c6 d3 Ke3 d4+ Kd2 f4 c7 b4 h5 f3 h6 f2 h7 b3 Nc3 b2 Be2 f1B Na2 b1B Ba3 g3 Nf3 g2 Qe1 g1B Bd1 g4 Nc1 g3 Bc5 g2 Nb3 Ne7 Qf2 Qd6 Qe1 Bb7 c8B+ Nd7 Be2 Bh2 Qc1 g1Q Nh4 Ng6 Bh5 Be7 Be2 Ra7 Ra2 Rf8 h8Q Nf4 Bb6 Qa3 Nf5 Bg3 Rh4 Qh2 Bd8 Bd5 Ba6 Nb6 Rh5 Bc6 Qe1 Nc4+ Kd1 d2 Rc2 Qg2 Rc3 Qh2 Rf3 Nd3 Bb7 Bgh4 Ba6 Bd6 Ng3 Bhe7 Bb7 Ba2 Kc2 d1R Qf2 Re1 Qe3 Nf2 Ba6 d3+ Kc3 d2 Kd4 Ba8 Bb7 Nd3 Bd5+ Kd7 Be6+ Kc6 Bg8 d1Q e6 Bb1 e5 Qdc1 Qeh6 Nd2 Ke3 Kd5 Q6f6 Kc4 Qg6 Bf6 e7+ Kc3 e8B Bfe7 Qe6 Kb2 Bb5 Be4 Bd7 Nc4+ Kd4 Bf5 Kd5 B5h3 Ke4 Bhg2 Qhh6 Bh1 Qe3 Ra8 Qc5 Ra7 Qc8
rq1R1N1B/QP1rr2q/PqQ3q1/1n1bk1bB/R2n1N2/1b1q4/2Q2PQ1/6K1 b - - 0 1 illegal: No possible last move, all moves rejected
2R1Q3/1P4bN/P1bq1Q2/1b1r1n2/1qr1bBnk/NNnR2N1/P3q2b/KB6 b - - 0 1 illegal: No proof kernel
1q3Q2/bP1rR1rP/8/1k3bb1/3Nq1bQ/2Q1qNR1/b5PK/nBBn1r1Q b - - 0 1 illegal: No proof kernel
1bK2nn1/3nBn2/B3k2r/2QR1NbP/1Pbn2NB/1n5B/2q3Pn/3R1r1Q b - - 0 1 illegal: No proof kernel
2kb2B1/3r2nn/1r1qbQb1/K1n1BP2/1RN1B3/2n1r2q/BPP1q3/N3R2Q b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 e5 f4 h5 g4 d5 b6 Kd7 f5 a5 g6 d3 Kc3 d2 g7 e3 g5 e4 b7 d4+ Kc4 e2 Kb5 e1Q g6 h4 Bh3 e3 Qf3 d1B Na3 e2 Ra2 a4 Bg2 d3 Qf2 h3 Bf3 d2 Qa7 h2 Ra1 Nc6 Qf2 Rb8 Bg2 Be7 Qa7 Nd4+ Ka6 Ne6 Kb5 Nf6 g8B Rh7 Bd5 Ng7 Nb1 a3 Be4 a2 Qb6 Qf8 Ka5 Bd8 Bb3 Qd6 Na3 Qf1 Bg8 e1R Nc4 Bh5 Ne2 d1N Bf4 Nc3 Nd4 Re3 Be5 Qe2 Rhe1 h1Q Nb3 Qh3 Rad1 a1N Rd4 Ke7 Bf7 Be6 Bg8 Kd7 Bf7 Nge8 g7 Bg6 g8B Rg7 Bh2 Nh7 Be5 Rc8 b8Q Rc6 Qa7+ Kc8 Qe7 Nc7 Qa7 Rb6 Qf6 Ne8 Qae7 Bd7 Bfd5 Be6 Qef8 Rd7 Qh6 Qhf3 Qh1 Qh3 Ncd2 Ng7 Rb4 Ng5 Nc1 Nh7 Ba2 Nb5 Nc4 Nb3+ Ka4 Nc5+ Ka5 Nc3 Nb3 Qed2 Na1 Qdh2 Qg1 Qe2 Qh1
8/1qb1rr1R/2nQQqP1/kB1P1bBb/N3rRP1/K6N/bB1n4/B1q3n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 d4 Kd7 Kd2 f5 Kc3 h5 e4 a5 b4 c5 Kb2 Kc7 g6 Kb6 e5 f3 d5 a4 g3 c3+ Ka2 f4 e6 f2 e7 c2 e8Q f3 Rh3 a3 Bg5 c1Q Bd2 h4 Qf7 c4 Qb3 c3 Ne2 c2 Qf5 Qc7 Bf4 Bd6 Qg5 Rh7 Qd3 Qb7 Qd2 Nf6 Rh2 h3 Qe5 Ra4 Qe1 Nc6 Nbc3 Bc7 Qd6 Ne4 Bg5 Bf5 Nf4 Nd2 Qee6 Re7 Rh1 h2 Nh3 Qe1 Be2 f1R Bc4 f2 Rd1 Ne4 Rd4 Nd2 Rf4 Qc1 Bd3 Nc4 Kb3 a2 Be2 a1Q Bd3 Ka7 b6+ Ka6 b5+ Ka5 Be2 Na3 Bd3 Re4 Na4 Nc4 Be2 Qf6 Bd3 Qa8 b7 Nd2+ Ka2 Qa7 b8B Qa6 b6 Qb7 Rg1 h1B Bb5 Bf3 Rh1 Bh5 Ba7 Qb1+ Ka3 c1N Bb8 Ne2 Rh2 Qc8 b7 Ng1 Ba7 Qb8 Bd4 Qc1+ Bb2 Qa7 b8B Qb7 g4 Rf7 Ba7 Rfe1 Bd4 f1B Rhf2 Bc4 Re2 Qb1 Ba1 Qc1+ Bdb2 Ba2 Qc8 Rb4 Re7 Rbe4 Qce6 R1e2 Re8 Re1 Rh8 R1e2 Rh7 Re1 Qed7 Ree7 Q6e6 Re4 Qdd6
r1kBR2b/3r3B/2P1n2r/P4nqR/1bN2qq1/2Rb1P2/1bQ3N1/1K2nR1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Kd2 d5 c4 Kd7 Kc2 b5 h4 e5 a4 g5 a5 e4 c5 b3+ Kb2 b4 f6 g4 h6 e3 h7 e2 f7 e1B h5 g3 h6 g2 Bc4 d3 Bd2 d4 Qc2 Qg5 Ra4 Bg7 f8R Na6 Na3 Ne7 Nf3 g1B Ka1 b2+ Kb1 Nc7 Ba6 Nf5 Bc3 d2 Bb7 d1Q+ Qc1 d3 Ba6 d2 Nb5 Ne6 Nh4 Qdg4 f3 d1R Ng2 B1d4 Bb7 Bge5 Bd5 Ba6 Nd6 Kc7 Bb3 Bd3+ Bc2 Bd2 c6 Q5f4 Ne8+ Kc8 Rf1 Be1 Ra3 Qfg5 Ka2 b1N Bb2 Rd2 Rc3 b3+ Ka1 Na3 Nd6+ Kc7 Qb1 Rd1 Bc1 b2+ Ka2 Bf6 Nc4 Bde5 Rd8 Rd2 Rd5 Kc8 Rb5 Rd1 Be3 Bd2 Bb6 Q5f4 Qc1 Qgg5 Bb1 Nc2 Bd8 Ne1 Qc2 Qfg4 Rcb3 Bb4 Rc3 Rf8 Rd5 Bh8 Rb5 Rf6 Rd5 Bg7 h8R Q4f4 h7 Rh6 Re8 Bh8 Rb5 Be2 Nh4 Ng3 Bc7+ Qd8 Rd3 Bhf6 h8Q Rh5 Qa4 Bec3 Qf8 Bh8 Qg8 Rh6 Rh5 Rd2 Re3 Rd7 Bh7 Nf5 Qg1 Bcg7 Ra3 Bd3 Qh1 Qg4 Ng2 Bf6 Re7 Qdg8 Qc2 Q8g5 Bd8 Bfg7 Re8 Bd4 Kb3 b1Q+ Nb2 Qd1 Ka2 Qdd2 Kb1 Qdf4 Nc4 Bb2 Rc3
r3R1q1/2nN1B1P/R4k2/2bb2N1/2b2nP1/q2NbqB1/1r2Pr2/2NQKn1Q b - - 0 1 illegal: No proof kernel
q1k1br2/2b3QP/4Q2n/2bPrNQR/2B1Pb1n/3r1n1K/bB6/2bNQR2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 Kg2 f5 h4 g5 b4 a5 d4 c5 e4 c4 h5 f3+ Kh2 g3+ Kh3 f2 d6 f4 d5 g4+ Kg2 a4 b6 c3 b5 c2 h6 a3 h7 a2 b7 Nh6 b6 Nc6 b8Q Ne5 b7 Ra3 Nc3 Nf3 Rh5 Nh4+ Kh1 f3 Nge2 g2+ Kh2 g1B+ Kh1 g3 Rf5 Bh2 Nb5 Rd3 Bg5 c1B Rb1 a1B Bf6 Be5 Nbd4 Bef4 Nc3 Be7 Qd2 Rf8 Rh5 Qe8 Be2 f1B Nf5 f2 Qa7 Kd8 Bh8 Bd7 Nd1 Bc6 d7 Bc5 Qe1 Kc7 Nb2 Qa8 Nd1 Re8 Ba1 Re5 Bb2 Bb5 Qa6 Bc4 Qf6 Ba2 Qg7 Bh3 Nfe3 Be6 Nf5 Bf7 Bf1 Be8 Ra1 Nf3 Kg2 Nh4+ Kh3 Kd8 Be2 f1R Rb1 Rdf3 Bb5 Rd3 Bc4 g2+ Nfe3 Qa6 b8Q+ Qc8 Qd6 Qa8 Qe6 Kc7 Qg5 Kb8 d8Q+ Kb7 Qdf6 Kb8 Qee7 Kc8 Qd7+ Kb8 Qd2 Bfg3 Ba3+ Bb2 Qa6 Re7 Qe2 Bc7 Nc3 Rf8 Rf1 Re5 Qae6 Bc1 Qdg7 Bf4 Bb2 Kb7 Qf2 Kb8 Nd1 Kb7 Qfg3 g1N+ Kh2 Ngf3+ Kh3 Kb8 Qe1 Kb7 Nf5 Kb8 Qd6 Kc8 Qe6+
R2Rb3/B4Q2/3nKn1b/2N1PrbB/P2B1bNk/1P2n1r1/2Q2qb1/2B2nn1 b - - 0 1 illegal: No proof kernel
2N5/Rrb1B2r/r1n3b1/rnbK4/qRR1Q1n1/P1P3nR/1P2NQ2/1n1B3k b - - 0 1 illegal: No possible last move
5r2/1r2rQb1/3N1BP1/1n1P1NBP/k3n1bK/2n2B1b/2qrR1RB/1br1Q3 b - - 0 1 illegal: No proof kernel
2N2bRB/1bq2PQB/2n1r1PK/1b5P/2R4k/nQn3nn/1Q2r2Q/r2N2b1 b - - 0 1 illegal: No proof kernel
3KQR2/Br3P2/1PBBN1n1/1Rbb4/1q1br2B/5N1n/P1n1Q3/2r1rrkb b - - 0 1 illegal: No proof kernel
2n4B/1R1b3r/B1q1PN1Q/P1Q2n1r/Nb1n2B1/5kqb/1n1n1P1R/1b2K1B1 b - - 0 1 illegal: No possible last move
1r1q1q2/1QB1r2n/1Pb4k/P4bN1/1N1b2qP/2bRnQqB/R7/1b2B1BK b - - 0 1 illegal: No proof kernel
1n3Q1K/B2P2n1/1BPBQ1BN/R2rb3/r3P3/r3Rbq1/6k1/Nbb1rr1q b - - 0 1 illegal: No proof kernel
1Nn2nQr/b1P4b/N3n1N1/B2q4/1K1Q1R2/r2r2qN/kPP1n1B1/1r4rR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 dxc5 exf4 Kd2 Ke7 Kc3 Ke6 g4 d5 e4 f5 e5 h5 b6 a5 g5 f3 g6 h3 g7 d4+ Kb3 Kd5 c6 d3 b7 d2 c7 f2 e6 a4+ Kc3 f4 e7 f3 e8N a3 Bd3 f1N Qe1 d1R Bf4 f2 Bh2 a2 Nd6 h4 Bh7 Ng3 Kb4 f1Q Kc3 Qg2 Qe3 Ne7 g8N Rd3+ Kb4 Bf5 Nh6 Ne2 Ng8 Nd7 b8Q Raa3 Qf2 Nd4 Nf7 Ne6 Qfa7 Ke4 Ne5 Qf2 Qab6 Qg3 Nc6 Bh6 Bg6 Be3 Nd2+ Kf4 Be8 Bh7 Ne4 Bf2 Nc5 Ke3 Re1+ Kd2 Re2+ Kc1 Na6 Kb1 Re5 a1R Rf5 Qf3 Rf4 Ka2 Bg6 Qg4 Be4 Be3 Qc5 Rb1 Qd6 Qg5 Qc8 Bf2 Ncb8 Ba7 Qc5 Nf6 Qf2 Qdd5 Qf8 Nc8 Ne7 Nd7 Qg8 Ndf8 Ng6 Qg3 Qc5 Qe3 Qb6 Rf1 Bg2 Qg3 Ne2 Ra1 Re1 Rb1 Bg1 h2 Qg7 h1R Qg8 h3 Qe3 h2 Qe4 Qh3 Bb6 Rf1 Rd1 h1N Ba5 Ng3 Ng1 Ne2 Qd4 Qg3 Nh3 Rh1 Rc1 Re1 Rf1 Red1 Rh1 Rg1 Rf1 Qg4 Rf3 Qg3 Rf4
brRB1n1Q/1Nnq1B2/1R5P/q2b4/2R4q/1nb1P1kq/Q1K1P1r1/1n1N3R b - - 0 1 legal: proof: g4 e5 d4 h5 a4 hxg4 d5 b5 axb5 e4 d6 e3 fxe3 cxd6 Ra4 d5 Ra1 d4 Kd2 Ke7 b4 Kf6 h4 Kf5 c4 d5 c5 a5 h5 g5 b6 d3 h6 g3 b5 Kg4 c6 f5 b7 d4 c7 f4 b6 a4 Bg2 a3 Rh3 f3 Ra2 f2 Bh1 f1B Qb3 g2 Qd1 Bb4+ Nc3 Be6 c8R Ne7 Qa4 Rg8 Rf3 Ng6 Qe8 Bd5 Qf7 Na6 b8Q Nf8 b7 Qa5 Qe5 Nc7 Nh3 g1Q b8R Qg3 Qh7 Qh4 Kd1 d2 Rd8 Bg2 Rbc8 Rb8 Na4 Bc3 Rf4+ Kg3 Qeg7 g4 Kc2 d1N Rb2 a2 Qgh8 Rg5 Rb6 a1N+ Kb1 d3 Ba3 d2 Qc2 Nb3 Be7 Ba8 Nf2 Bgd5 Nc5 Bg2 Ncd3 Kh2 Qg8 g3 Rfd4 Bb4 Qa2 Nc3+ Kc2 Nb1 Re4 Bc3 Rc4 Bgc6 Rd7 g2 Nc5 g1Q Bd5 Qh1 Qh8 Rg2 Bd8 Kg3 Nb7 Q1h3 Be6 Bb4 Bf7 d1Q+ Kb2 Qdd4+ Kc2 Bc3 Rd6 Qdg4 Rd1 Qd7 Rh1 Bd5 Nd1
3R1NN1/2q3R1/3k1BPK/n1rbq1Q1/3qrn2/P2b3Q/Bb2nPR1/3n1Rb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kd7 Kf3 c5 Kf4 b5 Kg5 h5 g4 e5+ f6 c4 d4 b3 d6 h3 a3 h2 d5 b4 Qe2 e4 Qc2 h4 Qb2 h3 Be2 e3 Bf1 e2 Nc3 e1Q Be3 Bb7 Rc1 Qc7 f7 Ra5 Qc2 b2 Bd3 b1N Nd1 c3 Ba6 b3 Qh7 b2 Bd3 c2 Ne2 Nc3 Bc4 b1B Nd4 Nc6 Ba2 Nge7 Rf1 h1N Ne6 h2 Qh3 Ng6 Bd4 Rc5 Ne3 Na5 Nf5 Rh4 Nh6 Nf4 Bf6 Ng3 Ng8 h1Q Rg1 Qf3 Rg2 Qfe3 Rd1 Be7 f8R c1B Rf7 Bd3 Rg7 Bb2 Rb1 Nd1 Nf8+ Kd8 d7 Nge2 Rc1 Qd4 Rb1 Qd6 Ra1 Kc7 d8R Qd7 Rb1 Bd6 Ra1 Be5 d6+ Kc6 Rc1 Qc7 d7 Kd6 Rb1 Bd5 Ra1 Nh5 Kh6 Bh2 g5 Re4 g6 Nhf4 Rc1 Qec3 Ra1 Ne3 Rf1 Bg1 Rb8 Nd1 d8Q+ Kc6 Qe7 Qe1 Qe5 Qec3 Qg5 Kd6 Ra8 Qe5 Re8 Qcd4 Rd8+
N3q1b1/6Qn/3Q1P1B/1Pr4b/Bb1Q2rb/qqNQ1RPr/6K1/1R1rkn2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 b4 Kd6 f4 a5 Kf2 c5 b6 e5 b5 h5 f5 c4 f6 c3 b7 e3+ Kf3 h3 Qa4 e2 Bf4 e1Q Qa2 h2 Na3 h4 Qb2 h3 Bc4 a4 Nc2 a3 Ba2 Be6 Bc1 e4+ Kf4 e3 Kf3 e2 Bb3 a2 Rb1 a1Q Be3 Nd7 Qa2 Qg3+ Ke4 e1B Qa7 Qe8 Bg5 Nh6 Be3 Bg8+ Kd3 Qa3 Ke2 Ng4 Nb4 c2 Kf1 c1R Ba4 Rc5 Bh6 Qgb3 Na6 Bh4 g3 Ne3+ Kf2 Rh7 Ne2 Nf1 Nc7 Rb8 Rg1 h1B Nc3 h2 Na8 Bf3 Rg2 Rbc8 b8Q+ R8c7 Rg1 Bh5 Kg2 h1R Qab7 Rc4 Q8a7 R7c5 Qba6+ Nb6 Qg7 Rh3 Qaa7 Nd7 Rh1 Be7 Rg1 Nf8 Qb6+ Kd7 d6 Ke6 d5+ Kf5 d7 Rg4 d8Q Ke5 d6 Kd4 d7 Kd3 Qbb8 Rh8 Qdb6 Nh7 d8Q+ Kc2 Qf4 Bf8 Qbd6 Be7 Nd5 Kd3 Qd4+ Ke2 Bc1 Ke1 Bh6+ Rc1 Nc3 Rd1 Q6d5 Bb4 Q8d6 Be6 Rh1 Rf8 Qf5 Bg8 Qfd3 Rf7 Rb2 Rd7 Rf2 Rc7 Rf3 Rc5 Q4d5 Rc1 Rh2 Nd2 Na2 Kd1 Q5d4 Ra1 Qf5 Rb1 Rh1+ Ke2 Rc1 Nf1 Qfg6 Qd1 Nc3+ Ke1 Qgd3 Ra1 Rc2 Rb1 Ra2 Qdb3 Rb2 Rd1 Rb1
5q2/B3nBr1/P3N2P/3n2br/kbb1q1Pq/4BRQB/3q3n/K1Q1NbR1 b - - 0 1 illegal: No proof kernel
1rbN2b1/1R3P2/n2PqQ2/k1n1B3/6B1/K1b1NN2/nP1qRnqr/3Q2Nq b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 d4 Kd7 Kd2 h5 Kc3 c5 Kb3 Kc7 f4 Kb6 g4 e5 d6 a5 f5 c4+ Ka4 e3 g5 e2 g6 e1N g7 c3 f6 h3 d5 e4 d7 h2 Bh6 e3 Qf3 h4 Nd2 e2 Nh3 c2 Bg2 c1N Qf4 Ned3 Ra3 e1Q Qg5 Qe6 Qg6 Bb4 Ng1 h3 Bf4 Na2 Be5 Nh6 g8N Ng4 Bf3 Bc3 Rb3 Nc5+ Ka3 a4 Nh6 Nf2 Nf5 Nba6 Ne3 Rb8 Bg4 Ka5 b6 Qdg8 d8N Qg7 d6 Qb7 Qf7 Qg2 Ngf3 Rh5 Rg1 h1Q b7 h2 Re1 Rh6 Re2 Qd1 Nef1 h1B Ng1 Rh2 Ndf3 Qd2 Ne3 Qf1 Nd4 Bd5 Ndf3 Qg2 Qg7 Qf5 Qe7 Bg8 f7 Qe6 Qf6 Rh1 Nh3 Qg3 Bd4 Ra8 b8Q N2b4 Qf5 Rh2 Be5 Qg2 Qf6 Nd5 Ka2 a3 Ka1 Ndb4 Kb1 Nbd3 Rb6 Nc1 Ka1 Qe1 Kb1 a2+ Kc2 Qeh1 Nhg1 a1Q Qb7 Na2 Qd5 Qe1 Qd1 Rb8 Rb7 Qd2+ Kb1 Nc1 Ka1 N1b3+ Ka2 Nc1+ Ka3 Na2 Qh6 Rh4 Qg6 Rh2 Qf6
1bBQ4/6nk/b3QR2/rqn3b1/1nBP1N2/2NPKB2/1PrrR2b/n1r1B3 b - - 0 1 legal: proof: g4 d5 f4 h5 a4 hxg4 c3 e5 fxe5 d4 cxd4 b5 Bg2 bxa4 Bh3 Ba6 Bf1 Bc8 Kf2 c5 h4 a5 e4 g5 d3 f5 h5 Kf7 e6+ Kg7 e5 a3 e7 f4 e8B f3 e6 a2 e7 g3+ Ke3 g4 Qd2 c4 Qc2 a4 Bc6 a3 e8B f2 Bb5 c3 Bd2 g2 Bf7 g3 Be2 f1R Be6 Rd1 Bf5 Nh6 Bg6 Na6 Be4 Nc5 Bc1 Bd6 Bd5 Nf5+ Kf3 Bb8 Bd7 Qb6 Bb3 Ra5 Bb5 Ba6 Nh3 g1B B3c4 g2 Bd7 Be3 Bc8 g1B Rh2 Qb5 h6+ Kg6 h7 Ng7 Qd2 c2 Qe1 Re8 h8Q Bg5 Qf8 Kh7 Bd2 c1N Rf2 Bgh2 Nc3 Re4 Rb1 a1R Qd8 Na2 Rc1 Nb4 Rc2 a2 Rf1 Rdb1 Bd1 Rg4 Qe6 Rg2 Be1 Re2 Rd2 Rg2 Be2 Rd1 Rf2 Rab1 Rc2 a1N Rf1 Be7 Ke3 Rbc1 Rd2 Bh4 Rf6 Bg5+ Nf4 Rc2 Bf3 Rg1 Re2 Rdd2 Bh4 Rgc1 Be1
B2K3n/b1n2Q1N/1Rq1pQ2/PQkb2qP/3r1N2/r1q1r2R/n2bP3/2QB4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 fxg5 Bg7 Bb2 Bh6 Bc1 Bf8 g4 h6 g6 Kd7 g7 Ra6 g5 Rh7 g6 Rh8 Bb2 Ke8 Bf6 Ra8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 d4 f5 a4 c5 h4 b5 h5 b3 Qd2 b2 Qc3 g4 Kf4 g3 Kg5 g2 Qe1 e6+ Kf4 c4 Nd2 b1N Qg3 b4 Ndf3 c3 Qg5 c2 Nh3 g1B Bg2 Nc3 Rb1 Ne7 g8B b3 g7 b2 Bh7 Bb7 g8Q Na2 Qf7 Na6 Qgf6 c1R Kg5 f4 Bc2 Ng6 Bd1 Rc3 Rh2 Nc7 a5 Ra3 Bh1 Rb8 Bg2 Qe8 Qf5 Qd7 Kf6 Qc6 Nfg5 f3 Nf4 f2 Nh7 f1Q Rh3 Bh6 Qd3 Qf3 Qb5 Rhe8 Bh1 Nh8 Bg2 Re7 Bh1 Kd7 d6 Qc3 Bf3 Rg8 Bg2 Rg5 Bh1 Re5 d5 Ba7 Be4 Kc8 d7+ Kb8 d6 Ka8 Ng2 Bd2 Nf4 Re8 Bd5 Rd8 Ke7 Re3 Bf3 Q6c5 Bg2 Bd5 Bh1 Qc6 Bg2 Rb8 d8Q Rc8 Qde8 Rd8 Qc5 Kb7 d7 Qd4 Qc1 Qdc3 Bf3 Ka6 Be4 Kb5 Bg2 Kc5 Bh1 Rb8 d8Q Rb4 Qed7 Rc4 Qdf8 Rd4 Kd8+ Kb5 Qh6 Kc4 Qhf6 Kc5 Ra1 b1Q Bg2 Qf5 Rb1 Qg5 Rb6 Bc4 Bd5 Qb7 Bc6 Bd5 Qde8 Qa6 Ba8 Qb7 Qa4 Qc6 Qb5+
q3b1Bk/q4r1B/3pK3/Q2nRP2/1b1q2nR/P1B2b2/B3r2P/nrN2QN1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Ke2 Kf7 Kd3 e5 Ke4 b5 Kd5 g5 f4 Kg7 c4 g3 a3 g2 c6 e4 c5 e3 c7 g4 c6 b3 Nc3 b4 Ke5 b2 Ra2 b1R Qc2 g3 Nge2 g1Q Qd2 g2 Qd5 b3 Qb5 b2 Bd2 Ra7 Nc1 e2 Qa5 e1N Bd3 Nc2 N3e2 Nh6 Bc3 Bb7 c8B Bb4 c7 d6+ Ke6+ Qd4 Re1 Nc6 Ng1 Ne7 Re4 Re8 f6+ Kh8 f7 Na1 Bc4 Ng4 f8Q+ Kh7 Bd7 Qa8 c8B Bc6 Qf7+ Kh8 Bb7 Ba4 Bbd5 Bd1 Ba4 Bf3 Bc2 Rc7 Re5 Qda7 Bh7 Rb7 Nge2 g1Q Bb3 Qgd4 Ng1 Rg8 Bdc4 Nd5 Rh5 Rc8 Rh4 Rcc7 Qf5 Rf7 Qd3 Rb6 Qf1 Rbb7 Nce2 Re1 f5 b1B Rd2 Bc2 Ba2 Ba4 Bcb3 Rb1 Nc1 Be8 Re2 Rbc7 Re5 Rc6 Bb2 Rc2 Bc3 Re2 Qd1 Rf8 Qf1 Nc7+ Ke7 Rf6 Bbg8 Rf8 Qa4 Nd5+ Ke6 Rf7 Qa5
1rNb4/1n1r4/1b1B1B2/Q2P1K1p/1Q1rRn2/R1bb4/1PBP1n1q/2kBbN2 b - - 0 1 illegal: No proof kernel forced: bxDB
1N5b/1RR2b2/Q1r5/K2BB1r1/B2n1Pq1/1N1kP1Pb/2r1n1p1/r1r2QBq b - - 0 1 illegal: No proof kernel
4nN2/b4nrn/B3B3/K2bnqQ1/2BPP2B/1b1P2q1/R2pnNR1/2kr2Q1 b - - 0 1 illegal: No proof kernel
2k3n1/nb5Q/1N2K1B1/R1rp4/1NbPRQ1b/1b4PB/q1P4r/1Nq1rbN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 a4 exf4 Ba3 Bb7 axb5 Be7 b6 Bf8 b5 Bc8 Bb4 cxb4 Kf2 h5 Kf3 d5 d4 Kd7 e4 a5 g6 f5 g3 b3 e5 b2 b7 h4 b6 a4 g7 h3 Ne2 a3 Ra2 h2 Nec3 Qg5 Nd2 b1B Ne2 Ra5 Ng1 Rc5 Bh3 Be7 Qe1 Nc6 Qe4 Na7 b8N+ Kd8 e6 Bb7 Nc6+ Kc8 Ra1 Ba2 Nb1 Bb3 Nb4 a2 Qe5 Bd8 e7 Qh6 e8B Bh4 Bg6 Qg5 Kf2 f3 Qf4 Rh6 Ke3 f2 Kf3 f1B Ke3 Bfc4 Kf3 Rh8 Ke3 Nf6 Kf3 Re8 g8Q Qh6 Qh7 Ng8 Ne2 Re4 Re1 h1R Ng1 Rh2 Re2 Re8 Re4 Re6 Qd2 f4 Kg4 f3 Kf5 f2 Qf4 Rf6+ Ke5+ Rf5+ Ke6 f1B Qg5 Rf3 Qf4 Re3 Bf5 Re1 Bh3 Bc6 b7+ Kd8 b8N Kc8 Qe5 Bb7 Nd7 Qc1 Qf4 Rg2 Nd2 Rh2 Nb6+ Kd8 Rb1 a1Q Rb2 Qab1 Ra2 Qa1 Ra5 Qa2 Nd7 Kc8 Nb1 Bfd3 Na6 Be2 Nb4 Bf1 Nb6+
4k3/1rn1b2q/n2N1bP1/1b1q1bP1/1rp1RBbQ/1PRB1Q1B/Bn1K1N2/8 b - - 0 1 legal: proof: f4 b5 h4 d5 c4 dxc4 a4 g5 hxg5 e5 fxe5 bxa4 g4 f5 d4 a5 e4 h5 d5 c5 e6 a3 e7 a2 d6 a4 b3 f4 e5 c3 g6 f3 g5 c2 Bg2 h4 Qd5 a3 Bd2 c1N Bb4 f2+ Kd2 f1B Nc3 h3 Ne4 h2 Bh3 Nd3 Rc1 a1Q Rc3 a2 Bf5 Be6 Nh3 Na6 Nhf2 Nb2 Ba3 Bd3 Re1 Bb5 Qd3 h1B Qf3 Rb8 Re2 Na4 Bc1 Nf6 Bh3 Qc7 Ree3 Bg4 Re2 Kd7 e8B+ Kd8 d7 c4 e6 Nd5 Nd6 Be7 Re4 Rh7 Bf1 Qb1 Bd3 a1B Bf7 Bb2 Be8 Qa1 Bb1 Qa3 Ba2 Qac5 Bf7 Bg2 Be8 B2h3 Bf7 Bf6 Be8 Ke7 d8Q+ Kf8 Qc8 Ba3 Bd7+ Ke7 Qh8 Nb2 Bc6 Qb7 Bd7 Ndc7 Bc6 Rf7 Qh4 Bf5 Bd7 Bhg4 Bc6 Rg7 Bd5 Kd8 e7+ Kd7 e8B+ Kd8 Be6 Qcd5+ Ke1 Qa7 Bf4 Rb6 Bc6 Bc5 Nc8 Bce7 Bb7 Ke8 Ke2 Qe5 Kd2 Qd5+ Rd3 Bf8 Nh1 Na8 Qhg3 Qe5 Re2 Bc6 Qe1 Bh3 Bb1 Rb4 Ree3 Bb5 Rc3 Bd3 Be4 Qd5 Ba2 Qf7 Qef2 Qg8 Qh4 Qh7 Re2 Rb7 Nf2 N8c7 Re1 B8e7 Nd6+ Kd8 Bg8 Bhd7 Be6 Bc8 Bh3 Be2+ Bd3 Bf5 Qe3 Beg4 Qf3 Kd7 Re4 Kd8 Nc8 Ke8 Nd6+
1N1n1K2/6r1/b3knp1/BrQn1q1n/1P6/PRbBrP1Q/5Q1Q/q3R1Nn b - - 0 1 illegal: No proof kernel
n6Q/rQn3p1/2RB1nq1/1BBbq1P1/1b1qP3/2Bq2k1/1K1P1N1r/3N2Rq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Na6 g5 Nb8 Qc2 Nh6 Qf5 Ng8 Qg4 hxg4 Kd1 Kd7 Kc2 Kd6 b4 Ke5 h4 f5 e4 a5 b6 c5 h5 c4 h6 f3 h7 Kf4 d6 c3 b7 f2 d7 g3 b5 a4 b6 g2 Bb2 a3 Rh4+ Kg3 Rh6 a2 Ba3 f4 Re6 f3 Re5 Bb4 Ba6 f1N Re7 f2 Nh3 g1Q Bc4 Ne3+ Kb3 f1Q Ba6 c2 Bc4 c1Q Bb5 Nc4 Nc3 Qd4 Re6 Qe8 d8B Qfd3 Rc6 Qh1 Bf6 Be6 Nf2 Na6 b8B+ Nc7 b7 Nb6+ Kb2 Bd5 Ba7 Qde5 b8Q Qg6 Qb7 Qed4 Bb8 Ra7 Rf1 Na8 Rb1 Qb6 Ncd1 Qc5 Bc3 Nf6 Ra1 Qcd4 Rc1 Ba5 Bc5 Bb4 Rb1 a1Q+ Kc1 Rg8 h8Q Qa5 Kb2 Rf8 Qh7 Rh8 Qg8 Rh5 Qh8 Rh2 Rd6 Na6 Rc6+ Qc7 Ra1 Qce5 Bbd6 N6c7 Ne3 Kf3 Rg1 Kf4 Ned1 Kf3 Rf1 Kg3 Rg1+
2K3NB/1R2PN2/6Br/P1Qp4/k2qQb1b/1r2b1r1/n1b1Q2P/bqnR1Q2 b - - 0 1 illegal: No proof kernel
1b1rr3/1NqP1K2/1P2Q1RQ/1b4Pq/1Br1Bn1r/5n1p/N2k2Nn/2r2RN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 e4 f5 g5 a5 b3 f3 b6 f2 b7 a4 d6 c4 d7 a3 Ke6 a2 e5 h3 d5 h4 d6 h2 Qc2 c3 Bd3 f1R Na3 f4 Ne2 f3 Nf4 f2 Bd2 Rc1 Nb1 f1N Ng2 Ne7 Be4 Nd5 Kf7 Qc7 e6 Nc6 b8N Nf4 e7 Nd4 d8N Bd7 e8Q Bb5+ d7 Nf3 Nb7 Bd6 Qe6 Re8 Be1 h3 Nd2 Rd8 Qd1 c2 Nc6+ Kc3 b4 Rac8 Rg1 h1Q Qe2 Ra8 Qh6 N1h2 Rf1 Re8 Rb1 a1R Rb2 Rad8 Rb1 Bd3 b5 Ra4 Nb4 Qg1 b6 Bb5 Ra1 Qf2 Rb1 Qh4 Na2+ Kd4 Rb3 Rb4 Rc3 Qh5+ Kf6 Ra4 Rc6 Rc4 Kg7 Rb1 Kf6 c1R Kg7 Rbb4 Kf6 Ng6 Kf7 Bg3 Re6 Nf4+ Rg6 Ra4 Bc6 Rab4 Qe6 Kd3 Be4+ Ke2 Nb3 Ra4 Ba5 Rab4 Nd4+ Kd2 Ne2 Nd5 Bb1 Rh4 Ng1 Nf4 Nc3 Ra4 Be4 Rc4 Bb4 Qd6 Nc5 Ne2 Rf2 Be5 Rf1 Nf4 Nb7 Qc5 Bc2 Bb8 Be4 Qc7 Na2+
R1r3b1/1Pr4b/b2kQ3/qBN1N2K/n1p5/3B1nqn/P1P2bbN/1NR4Q b - - 0 1 illegal: No proof kernel
1R2B1bq/p1Nn1Q2/2K3n1/qnP1r3/4Pn1R/k2N1RqR/4Q1P1/b1B1n1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 axb5 exf4 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 Kb4 Kd5 h5 e4 f5 b3 h4 g6 d3 c5 h3 g7 d2 b6 f3 b7 h2 Bc4 f2 Bf1 f4 Ra2 f3 Na3 Ne7+ Kd6 Ng6+ Kd5 Qa5 g8Q Bg7 Nb1 Ba1 Bd3 f1N Be2 f2 Bg4 Ng3 Nf3 f1Q Ne5 Qe1 Rb2 Ne2 Rc2 Qg3 Nc3 Nef4+ Kd4 d5 Qf1 d1N Qf7 Nf2 Bd7 N2d3 Qe2 Ne1 Be8 Nd7 b8R+ Bb7 Rb2 Ka3 b4 Ba6 Rd8 Bc4 b5 Rh7 Rf1 h1Q b6 Rb8 b7 Rh5 Nd3 Re5 Rf3 Qh8 Rc8 Bb3 Rc7 Rd8 b8R Ba2 Ke3 d4+ Kd2 Qb5 Nf2 d3 Ke3 d2 Kd4 d1N Qd5 Nf6 Rh7 Qg5 Rh4 Qa5 Re3 Ned3 Qd7 Bb3 Nd5 Nc3 Nc7 Bg8 Qd5 Rd6 Rg3 Nd7 R2b3+ Ka4 Rgh3 Qg3 Kc4 Nb5 Rc3 Ne1 Re3 Nc2 Qf7 Rd1 Rf3 Rg1 Nd3 Ne1 Be3 Ka3 Bd2 Re7 Be3 Ne6 Kd5 Nef4+ Kc6 Re5 Bc1+
2N2nnk/1K1bq3/7r/2R1R1Rr/q2P1qBq/Q2p1P2/R2rNB1P/2bQn3 b - - 0 1 illegal: No proof kernel
Qn3N2/q1N1bR2/r3n1n1/1N1K1pP1/Pq1B1r1n/1k2Q1R1/N1b1b1P1/5Bq1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 b4 axb4 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 a4 b5 d6 f5+ Ke5 h5 d5 c5 d7 b3 d6 f3 Ke6 b2 Bd2 h4 Ra3 b4 Nc3 b1Q Be3 b3 Bd4 b2 Bg7 f2 Ra1 h3 Nb5 h2 Ra3 Ne7 Bf6 Qb6 Na7 Ng6 Rg3 Be7 Qe1 Rh4 e3+ Kb3 Be5 c4 e4+ c3 Kd5 Rf4 d8N Ba6 d7 Be2 Nb5 Ra6 Bd4 Qa7 Qd2 Qe1 e5 b1B Ne6 Bc2 d8Q Qb1 Nf8 Qb2 e6 Qa3 Nh3 Qb4 Rg1 h1Q Qe3 Qh2 Rh1 Qg1 Qa5 Bcd3 Rh2 c2 Qd8 c1N Qc8 Bd6 e7 Bc5 e8N Be7 Bc3 Bc2 Bd4+ Nd3 Nec7 Nd7 Qa8 Nb8 Nc3 Nc5 N7b5 Ne6 Rh1 Rh4 Nf4 Rg4 Rh7 Rh4 Nd3 Rf4 Na2 Bh5 Be2 f1N Rf7 Nh2 Bf1 Bhd1 Bc3 Nf3 Bd4 Qc3 Ndb4 Be2 Nc6 Nfh4 Nc7 Qb6 Na7 Qb4 Qf2 Qd3 Nab5 Qe3 Bc3 Qb6 Qe3 Qa7 Bd4+
r7/3R4/q1QNkb2/1NP5/1bRQ1qPB/4qp2/1KnqBrP1/N2Nnb1n b - - 0 1 legal: proof: f4 b5 d4 g5 a4 c5 axb5 cxd4 h3 g4 hxg4 e5 Ra6 exf4 Ra2 Nf6 Ra1 Ng8 Kd2 Ke7 c4 h5 Kc2 f5 e4 d5 b4 a5 e5 f3 b6 h4 e6 h3 b7 a4 b5 a3 b6 f2 Bb2 d3+ Kc1 a2 Nd2 h2 Qb3 d4 Nb1 d2+ Kc2 d3+ Kc3 d1Q Qa4 d2 Qb5 f4 Na3 Nf6 Be2 f1Q Nh3 Nh7 Qc6 Na6 b8Q Qa4 b7 d1Q Qe5 Nb4 b8N Qe8 Nf2 Qa6 Rc1 a1B Nc2 Ng5 Qd4 Nf3 Kb3 Qd2 Nd1 Ne1 c5 Bg7 Rg1 h1N Bc3 Bb2 Na1 Ba3 Bb2 Rh7 Rc4 Nbc2 Bc1 Bb4 Kb2 Qf2 Rf1 Be5 Rg1 Kf6 e7+ Be6 Rf1 Rf7 Rg1 Qf8 e8N+ Ke7 Nd6 Bf6 Rf1 Qfe3 Rf3 Bf5 Rh3 Bd3 Rh7 Ke6 Rg7 f3 Rh7 Rfa7 Rd7 Qb6 Na6 Qfh6 Qc3 Qhf4 Qd4 Qb5 Nb8 Ra5 Na6 Ra2+ Kb3 Na3 Bb2 Qb6 Bf1 Qde2 Qc3 Be7 Qg7 Bg5 Bf6 Rd2 Be7 Nac2 Kb2 Q2f2 Bd8 Re2 Bf6 Qd2 Bd8 Qf2e3 Qd4 Rf2 Be7 Bh6 Bh4 Bg7 Rb7 Bf6 Nc7+ Ke7 Ncb5+ Ke6 Rf7 Qa6 Rd7 Be2 Ndc3 Bd1 Bd3 Be2 Nd1 Bf1 Be2
RQ2R2k/2bBQrq1/2b1R1r1/1P3P2/3Bqnp1/1r1R2b1/rn2n1PN/NK6 b - - 0 1 illegal: No possible last move, all moves rejected
6qQ/2Qn2nb/1nNr4/PbN3KB/1bq1p1P1/1R3Rr1/Q1QnqP1k/4B3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Kg4 h5+ Kf3 Kg5 a4 b5 g4 c5 f6 h3 d4+ Kh4 d6 h2 d5 c4 a5 b3 f7 b2 d7 b4 d6 b3 Qe2 c3 Be3 c2 Qd1 c1Q Nh3 Ne7 Qd5 Ra6 Qc4 Nd5 Nc3 b1N Na4 b2 Rg1 h1N Bc5 Ng3 Bd3 Nf5 Ng5 Ng7 Ne6 Kh3 Bb4 h4 Nd4 Rh7 Qb3 Qc4 Ra3 Rc6 Ke4 Ba6 Qa2 Nb6 Rb3 Bb5 Be1 Qc8 d8Q Nd2+ Ke3 b1B d7 Bb4 Qh8 Qg8 d8Q N8d7 Nc5 Rd6 f8Q Rh5 Rh1+ Kg2 Bc2 h3 Nc6 h2 Bg6 Bd3 Be8 Bh7 Qf5 Rh4 Qfc2 e4 Kf4 Rh3 Kg5 Re3 Qc7 Kh3 Rg1 h1Q Rg3+ Kh2 Bh5 Qf3 Rc3 Qfe2 Rb3 Rc3 Rf3 Rd3 Rf6 Rg3 Rff3
Q1B5/4Qr1k/4n2p/2Rb2RP/1K1PBPr1/1b1qNr2/1bq1qBbN/3nB3 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 e3 fxg4 Ra5 d5 Ra1 d3 Bh3 d4 Kf1 d2 Kg2 d3 Ra4 Nc6 Ra1 Qd4 exd4 Bf5 Kg3 Bd7 Bf1 Nb8 Kg2 Bc8 h4 Kf7 c4 Kg6 f4 a5 Kf2 e5 Ke3 h6 b4 g3 b6 e4 b7 g2 h5+ Kh7 c5 g5 b5 a4 b6 a3 c6 a2 c7 g4 Na3 g3 Qb3 d1B Kd2 e3+ Kc3 e2 Kc4 e1Q Qc3 d2 Qf3 Bh3 c8B Ne7 Kc5 Nd7+ Kb5 Nd5 b8B Ne3 b7 Nc5 Be5 Bb3 b8Q d1B Bd7 Bd5 Be6 B1b3 Bd6 Qe2+ Kb4 Nd1 Nc2 Ra3 Bc8 Ne6 Qe3 Rg8 Be7 Rg7 Bd2 Rf7 Rc1 a1Q Nf3 g1R Be1 g2 Qa8 Qb1 Nh2 Qb2 Qe5 Qa2 Ne3 Qac2 Qd6 Qb1 Qc5 Qd2+ Kb5 Ra2 Qb8 Qdd3+ Rc4 Rf2 Qa8 Qbc2 Bh4 Bd6 Qc7 Ba3 Qe7 Bb2 Be2 Rff1 Kb4 Rf2 Bg4 Rf3 Bhg3 Rgf1 Rc6 g1Q Rc5 Qgg2 Rg1 Qge2 Bh4 Rg3 Bf3 Rg8 Rg6 Bg2 Be4 Rf3 Bhf2 Rgg7 Rg5+ Rg6 Rf5 Rg4 Rg5+
B2q4/Nb2Q1rR/B4PPn/nQ3PB1/1bRr2B1/5pK1/1r2k2n/2qNn2q b - - 0 1 illegal: No proof kernel
1B6/3Rq3/q1P1B1Q1/kn3rpr/4RPQN/q1PKnb2/1rnN2rb/2R1R3 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 axb5 h5 dxc5 hxg4 Kd2 a5 h4 e5 b4 g5 f3 d5 h5 Kd7 h6 Kc7 c6 Kb6 c3 e3+ Ke2 g3 h7 e4 Bd2 g2 Qc1 d4 Na3 a4 Rh6 d3+ Kd1 e2+ Ke1 Na6 Qc2 Nf6 Qa2 Qe7 Rh1 Rb8 Qe6 Ng4 Bf4 Nc7 Kd2 e1R Nb1 a3 Qg6 a2 Bd6 Ne3 f4 Bg4 Nf3 g1R Nh4 Bf3 Bh3 Bg7 Bd7 Bd4 Be6 Rhf8 h8Q Rf5 Qhg7 Rh8 Qg8 Rh5 Qc8 Rg4 Rf1 Nc2 Qd7 Bg1 Be5 Rc1 Re1 Bh2 Qc8 Qf8 Qd7 Qa8 Bd6 Qa6 Qc8 Ne8 Bb8 Nd6 Qd7 Na3 Ke3 Rc2 Nd2 Rg2 Rac1 a1Q Bc4 Rh6 Bc7+ Ka7 b6+ Ka8 b5 Re5 b7+ Ka7 b8R Rb2 Nf1 d2 Re8 Rh5 Qg4 Rf5 Re2 d1N+ Kd4 e3 Nd2 Nc2+ Kd3 Q1a4 Re5 Qa3 b6+ Ka8 b7+ Ka7 b8R Nb5 Rf2 e2 Rd8 e1Q Bb8+ Kb6 Rfe2 Ka5 Rd7 Rb4 Re8 Rb2 R2e7 Qe5 Bf7 Qf6 Re1 Nde3 Re4 Qfe7 Be6
nQ1n2N1/KQ6/2p1P3/3bb1r1/2rNB1kr/B3n2R/RP1qB1Pr/1q2Bq2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Ke7 e4 Ke6 d4 f5 e5 h5 b6 a5 b7 a4 g6 c3 g7 a3 Qe1 c2 Qa5 c6 Nd2 h4 Be2 a2 Ngf3 h3 Rb1 a1Q Nh4 h2 Nc4 f3 Ke3 f2 Qb5 f1Q Ng6 Ra5 Nd6 Nh6 g8B+ Nf7 Bh7 Bg7 Ne7 Nd7 b8Q Nb6 Ng8 Na8 Bd2 c1R Be1 Rc4 Q5b7 f4+ Kd3 f3 Nf5 Qa2 Ra1 f2 Ke3 Qb1 Ra2 Qd7 Bg6 Rh4 Bh7 Nd8 d5+ Kf7 d6 Ke6 Bg6 Qe7 d7 Qd6 Rg1 h1R Nd4+ Kd5 Bc2 R1h2 e6 Ke5 Kd3 Kf4 Rh1 Kg3 Ke3 Rg5 Bcd3 Be5 Be4 Nf7 d8B Qb4 Nf3 Kg4 Be7 Qa5 Ba3 Nd8 Qg7 Ba6 Qd7 Rb4 Qdb7 Bc4 Nd4+ Kg3 Kd2 Bd5 Kc3 Rc4+ Kb3 R2h3 Rh2 Qd2 Rh1 Rc5+ Ka4 Rh2 Q8a7 Rc3 Ka5 Rc4+ Ka6 Kf4 Qab8 Kg3 Nf3 Kg4 Ka7 Qg1 B2d3 f1N+ Nd4 Ne3 Bf1 Rhh5 Bfd3 R2h4 Rh3 Qf1 Rf3 Rh2 Rh3 Rh4 Be2+
2B1Nb2/2N4r/PQK1B1q1/3R1Pr1/1q3pRQ/Pbk1B2q/3br3/nb1n2B1 b - - 0 1 illegal: No proof kernel
2q2b1r/3k2P1/3nq2r/B1PrNQ2/3QQ1bb/1q3P2/2bR1pQ1/1BK1Nn1R b - - 0 1 illegal: No proof kernel
K1Q2bq1/nn1R2p1/2P2r1R/2Nn4/1Bb2q2/2nBbkq1/RRP1P1r1/1N4Q1 b - - 0 1 illegal: Other
3N2Bk/q2n2pN/PNK4n/Q2Nr2q/1b1RP2n/1R2q1P1/2Q3rb/2b3Bq b - - 0 1 illegal: No proof kernel
3nqB2/5Pbr/6NP/1B2rb2/QRKn2r1/P1Qn1b2/RB1p4/1q1kN1bB b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kd3 Kf6 h4 Ke5 c4 b5 f6 g5 h6 d5 h7 g4 a3 g3 c5 g2 f7 b3 f3 b4 h5 b2 c6 b3 c7 Bf5+ Ke2 d3+ Kd2 Kf4 Kc3+ d2 c8B Ke3 f4 e5 h6 d4+ Kc4 d3 Bd7 e4 Kc3 Ra4 Nh3 g1B Qc2 Ne7 Bg2 Ke2 Bc6 e3 Bcd5 Nbc6 Bc4 Nd4 Bb5 Bg7 f8B Qe8 Ra2 Nec6 Bd5 Ra5 Kc4 Nd8 Ba8 Rg8 h8Q Ke1 Bd5 d1B Nd2 b1Q Bb2 e2 Rh2 Ra7 Bh1 Re7 Qc3 Re5 Qh7 Rh8 Qg8 Rh7 Nf3+ Kf1 Qf7 e1N Qa7 d2 Qa4 Nd3 Ne1 Bdg4 Rg2 Bf3 Rg4 Ke2 Rh4 Kd1 Rg4 Bc8 f5 Bd7 f6 Bf5 f7 Nf2 Ba1 Nd3 Rc2 b2 Nf4 Qc1 Ng6 b1R Ra2+ Qc2 Ba6 Rb3 Bb2 Qb1 Qaa5 Rb7 Bb5 Rbe7 Qa7 Re4 Qa6 R7e5 Qa4+ Nc2+ Kb3 Rd4 Re4 Rc4 Re2 Rf4 Re4 Rg4 Rb4 Nd4+ Kc4+
N1QR1k1N/r1r2P2/1R2p1nn/q1P2BK1/Q1n4R/1r1q1Pb1/3B4/2R1nbq1 b - - 0 1 illegal: No possible last move, all moves rejected
1b2q1Rr/2N1P3/Kp1PqB1k/R1QNN1B1/1PQ1b3/N4q2/n1n4r/2bb2n1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 b4 exf4 Bg2 a4 cxd5 Bd7 Be4 Bh3 Bc2 Bc8 Bb3 axb3 h4 Rh7 e4 c5 Ke2 g5 Kd3 f5 Kc4 Kf7 Kb5 Kg7 d4 g4 a4 b2 a5 g3 e5 g2 h6+ Kg6 e6 f3 e7 b6 a6 f4 a7 f2 Qb3 f1Q+ Ne2 g1N Ra5 c4 Nec3 f3 Bg5 f2 Na3 b1B Rh3 Nc6 Rg3 Bg4 Ka6 Rc8 a8N Nf6 Qc2+ Ne4 h5+ Kf7 Qb3 Qe2 Qc2 f1Q Qd3 Rg7 h7 Rg6 h8N+ Kg7 Rg2 Rh6 Nf7 Qe3 Qc2 Bd1 Qe2 Rh7 h6+ Kg6 Qg4 Qff3 Qf4 Qee2 Qd6+ Kh5 Qc5 Bg7 Rg4 Be5 Rg3 Bb8 Nc7 Qeg2 Ne5 Qh3 Rg2 Qe6 Rg3 Rg7 h7 Bbc2 h8B Rh7 Rg4 Qdd7 Bhf6 Rch8 Rg2 Qe8 Rg3 Rg7 Bh4 Kh6 d6 Rgg8 d5 Nd4 d7 Rg4 Rh3 Rg2 d8Q Rh2 Rg3 Bd3 Na4 Nc3 Rg8 Na2 Nc3 Nc2 Qd7 Bg6 Qdb5 Be4 d6 Na1 Ne2 c3 Nf4 c2 Qbc4 c1B Nfd5 Nc2 Bhg5+
Q3nb2/RK1P1Q1b/RRN3r1/6n1/2rp2BN/1b1rBn1P/2q2P1q/2Rk2n1 b - - 0 1 illegal: No possible last move, all moves rejected
r3qn2/1NPR4/1PnB2Q1/1B6/2n2p1b/RK1brRQ1/PR2qqnb/1N2k3 b - - 0 1 illegal: No proof kernel
Kb3qb1/1Np1Q1r1/BqbP2P1/Q1P1R2B/1B1r2qr/1BR5/nr6/2Nn1k2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 a4 exf4 axb5 Bc5 Qb3 Bd6 c5 Bf8 Qc4 dxc4 Kf2 Kd7 Kf3 Ke6 Ke4 a5 b4 f5+ Kf3 Ke5 g4 Kd4 e4 h5 e5 a4 g6 c3 g7 h4 d3 h3 g5 c2 b6 h2 g6 a3 b5 a2 b7 Qd6 b6 Nh6 g8B Na6 b8Q Ng4 e6 Nb4 e7 Rh4 e8B Bh6 b7 Be6 Na3 Qb6 Qa7 Rd8 b8Q Nf2 Qba8 Nd1 Bd2 c1Q Qc6 Qc4 Rc1 a1R Rc2 Ra2 Qca8 Rb2 Ba4 Na2 Rc3 Rd7 Bc6 Rg7 Qe8 Qcb4 Qa5 Bc4 Bh7 Bg8 Nc4 Qa4 Nd6 Qab4 Kg2 f3+ Kg3 f2 Kf3 f4 Qe7 Qc4 Nb7 Qe6 Be2 Qf5 Bb5 f1R+ Kg2 Bg5 Bh5 f3+ Kg3 f2 Ba6 Qd7 Kf3 Bh6 Be1 Bd2 Ne2+ Kd5 Rg1 h1B+ Rg2 Qc8 Nc1 Kd4 Ke2 Qd7 Rg5 Bc6 Rf5 Rfh1 Re5 Re4+ Kf3 f1Q+ Kg3 Ke3 d4+ Qd3 d5 Rh4 d6 Qc8 Rc2 Qf1 Rc4 Bb4 Rc2 Qff8 Rc4 Ba3 Bb4 Qe6 Rc3+ Kd2 Nb3+ Ke1 Nc1 Qc4 Rd3+ Kf1 Rc3 Bgd5 Bg8 Rd4 Bf7 Be6 Be8 Bg8 Bf7 Rhe4 Kf3 Rh4+ Re4 Rh1 Kf4 Rh4+ Ke5 Qe2 Rd3 Qg4 Bb3 Rc2 Re2 Bb2 Rh3 Bc3 Rhe3 Bd2 Rc3 Rb2 Qa4 Bh7 Rd3 Qe8 Na5 Qa7 Ba3 Bb5 Rg3 Bb4 Rc3 Qf8 Ree3 Rf4 Kd5 Bg8+ Re6 Re4 Nc6 Ba5 Nd8 Rc4 Bb4 Bb6 Qa5 Qb8 Nf7 Ba7 Nd8 Bh7 Re5 Qb6 Qe8 Bb8 Qe7 Ba4 Qb5 Qa5 Kc6 Bg8 Kb7 Qb6+ Ka8 Qe8 Re4 Qf8 Qa5 Bb5 Nb7 Bc6 Re2 Rd4 Re5+
1q3R2/P2Qn2k/4Qp1r/1nN1B1n1/2rq1P2/NKbRnb2/3b1P1q/Q5BQ b - - 0 1 illegal: No proof kernel
2rB2q1/P1p1n3/5r1N/QBk1B2b/1qP1R2P/1r2Nn1K/2bQ4/Rq1q1n1B b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 e4 d5 Ba6 Bd6 Be2 dxe4 Bf1 e3 Qe2 e4 Qd1 Be5 fxe5 Qd4 Bb2 Qd3 Bc1 Qd8 d4 Kd7 h4 Kc6 a4 b5 c4 g5 a5 f5 d5+ Kc5 e6 e2 Kf2 e1R Kg2 g4 e7 f4 e8B f3+ Kh2 f2 h6 b3 d6 b4 d7 e3 a6 e2 h7 g3+ Kh3 b2 a7 b3 Nd2 b1Q Kg4 b2 Ra4 g2 Kh3 Nc6 Ra1 Ne5 Ngf3 g1Q Bg2 f1N Nd4 Ne7 Nf5 Rb8 Nh6 Nf3 Qa4 Rf8 h8Q Rb3 Qc3 Rf6 Rh2 Bb7 Bh1 Qg8 Qd3 Qb8 d8B Bc6 Rg2 Qb4 Rg4 Rd1 Qc2 e1Q Re4 Bd5 Qd3 Bf7 Bb5 Bh5 Qa5 Qe2 Qc3 Re1 Qc2 Qd1 Qc3 Qd3 Qc2 b1B Bb2 Re3 Qc1 Bc2 Be5 Re2 Nb1 Rg2 Qd2 Rg7 Na3 Rgf7 Nb1 Rf8 Nc3 Qb1 Nd5 Qe2 Bg3 Qed1 Be5 Rb6 Ne3 Rb8 Qd7 Rc8 Qd3 Rf6 Qd2
bK3Nbr/p2QN1RP/1Qq5/1P2r3/r2qqnPQ/6kB/nBq1Q3/1Rb5 b - - 0 1 illegal: No proof kernel
1n1B1r2/pB3P1P/8/nkrnn2r/3b3q/1bRN3q/1P1RQBQq/N1B1K3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 hxg4 Ra6 Kd7 f4 g5 h4 c5 d4 e5 d6 c4 d5 c3 f5 c2 h5 g3 f6 e3 Qf3 Nc6 h6 g4 b6 g2 f7 e4 b7 g3 Rh2 e2 b8B Nf6 Rh3 Bg7 Bg5 c1N Na3 Nb3 Bc1 Nba5 Kd2 e1Q+ Kc2 e3 Ne2 g1Q Nf4 e2 Bg2 Qef1 Kd2 e1R Nc2 Re5 Na1 Qh2 Qe2 Qf3 Bh1 g2 Ke1 g1N Rb6 Qfg2 Rc3 Qgh3 Bc7 Rb8 Bg2 Rf8 h7 Ba6 Bf3 Rh5 Qg2 Bf1 Rb4 Bh8 Rd4 Rb5 Bb6 Bc4 Rdd3 Nb8 Bf2 Rc5 Rd4 Kc8 d7+ Kb7 d6+ Ka6 Bb7+ Kb5 Rd5 Bb3 Rd1 Qc7 d8Q Bg7 Qe7 Qd8 d7 Nd5 Rdd3 Bd4 Qe2 Qdh4 d8B Nf3+ Kf1 Bc4 Rd2 Ne5 Nd3 Bb3 Ke1
3n2NQ/Nb2Bn2/R2br2b/P2pn1B1/n4P2/1qQP2K1/rQ1b3n/2Q1R2k b - - 0 1 illegal: No possible last move, all moves rejected
1k1r2R1/2q1P3/1r1BBP1K/1r3p2/5PqB/1QN3bn/rbQr1r2/B1n3NR b - - 0 1 illegal: No proof kernel
4R1B1/1nq3n1/1k3rn1/1nR1P1K1/1B2br2/3PR1p1/1Q2NRPr/bQ1Nrb2 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Qg5 Ra5 Qh6 Ra1 Qxh2 Kf2 Kd8 Kf3 f5 b4 h5 e4 c5 b6 a5 b5 g5 b7 Kc7 d6+ Kb6 d7 c4 d8R c3 d3 c2 Nd2 h4 Ra4 g4+ Kf2 f3 Ke3 h3 Qe2 f2 Rad4 a4 Ngf3 a3 Rb4 f4+ Kd4 a2 Ke5 a1R Nb3 Bf5 Rd5 R8a6 Ng1 f3+ Bf4 c1N Nd4 Na2 Rb2 Nc3 Nc2 Re1 Ne3 Ne7 Kf6 Nbc6 Rc5 Nd8 b8R+ Nb7 Re8 Bg7+ Kg5 Ng6 Bd6 Bd4 Be7 Qc7 e5 h2 Nd1 Be4 Qd2 g3 Be2 f1B Qc1 f2 Qb1 Rh6 Bf3 Rh4 Ne2 Rf4 Rg1 h1R Rd2 Bc6 Bd5 Rh2 Bg8 Be4 Bd6 Ka5 b6+ Nb5 Rdc2 Ba1 Rh1 Nd8 b7 Kb6 b8Q+ Nb7 Rf8 Ka5 Be7 Raf6 Re8 Ka6 Rd5 Ka5 Bb4+ Kb6 Rdc5 Nc3 Qa8 Nb5 Ng1 Be2 Nb2 f1N Qa3 Ne3 Nd1 Nf5 Qab2 Ref1 Rd2 Ng7 Rdc2 Bg4 Rf2 Be2 Rf3 Re1 Re3 Bf1 Ne2 Rh7 Nc1 Be2 Rf1 Rh2 Rf2 Bf1 Ne2
1N2R3/1rR1r2b/1Qn2K1k/1P5q/1rP3b1/1n3P2/BBrRQ1pb/1n2NbR1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 e5 Ke4 a5 c4 d5+ Kd3 g5 h4 Kg7 b4 g3 h5 g4 b6 g2 b7 a4 f3 g3 b5 a3 Rh3 a2 Qc2 e4+ Kd2 e3+ Kd3 e2 Be3 e1R Na3 Bd6 Bf4 Qh4 Be3 Ne7 Qb2 Ra4 Bc1 Nbc6 b8Q Rh7 Nc2 Rb4 Ne2 g1R Qc7 g2 Qb6 Bh2 Rg3+ Qg5 f6+ Kh6 f7 Bg4 f8R Rh1 Rb1 a1N Re8 Nb3 Qa2 Rg1 Bb2 Rc1 Ne1 Rc2 Nc3 Qe5 Na4 Rh1 Be2 Rf1 Rc1 Rf2 Bf1 Rfe2 Nc5 Bd7 Qb1 Bc8 Ba1 Rb2 Rg7 Bg4 Rf7 Kg5 h6 Rg7 h7 Kh6 Na6 Qh5 Nb8 Ra2 Qb2 Re4 Kc2 d3+ Kc3 d2 Bd3 d1B Bb1 d4+ Kd3 Nd5 Nc2 Nc3 Rd8 Re2 h8R+ Rh7 Rb7 Ra7 Rhf8 Rhe7 Rc7 Rb7 Ba2 Nb1 Rfe8 Rf2 Qc3 Rfe2 Qe1 Rf2 Qe5 Be2+ Ke4 d3 Bb2 d2 Rg1 d1B Ne1 Bf1 Rd4 Bc2+ Kd5 Rd2 Kd6 Rd1 Rd2 Bh7 Kd5 Rc1 Kd6 Re6+ Kd7 Rc2 Qe2 Re5+ Kd6 Rf5+ Ke6 Re5+ Kf6 Re3 Na6 Re7 Nb8
1B2bNK1/QR1N3r/4Q1P1/2r4P/k2pnrBB/3b1Bnn/1RbbP3/4q2r b - - 0 1 illegal: No proof kernel
4qBK1/4Q2Q/1Pk2rP1/br1B1b2/1n2b3/nB3NN1/np2R1Pr/1Rrb2B1 b - - 0 1 illegal: No proof kernel
8/3rNR1P/n1b1rR1P/1n1nB3/1Rnq1Ppb/k2Qbr2/2Q3B1/2Rb2NK b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 g4 h5 gxh5 cxd4 f4 a5 Kf2 e5 Kg2 Ke7 b4 Kd6 h4 g5 c4 g4 h6 e3 h5 d3 h7 e4 h6 e2 b6 e1B b5 Kc5 b7 Kb4 b6 d5 c5 e3 c6 d2 c7 d4 Bb2 e2 Nf3 d3 Be5 a4 Bg7 a3 Rh2 a2 Bb2 Nf6 Bc1 Bd7 c8Q Ra3 Qc6 Bc5 Qc7 Bh4 Rh1 e1R Qe2 d1N Nc3 d2 Bb2 Ne3+ Kg1 Rg8 Nd5+ Ka4 Rb1 Na6 b8R a1N b7 Rg7 Kh2 Bd4 Qc2+ Nb3 Bg2 Nc4 Qed1 Qh8 Rf8 Bb5 b8R Rd7 Rbe8 Re6 Ne7 Nd5 Rg1 Bc5 Kh1 Bc6 Ba1 Qe5 Rf6 Kb4 Bb2 Nd4 Ref8 Nb5 R8f7 Rd3 Bd4+ Ka3 Rb4 Re3 Qe2 Rb3 Rb1 d1B Ng1 Rf3 Rc1 Qe4 Be5 Be3 Qf1 Qd4 Qfd3+
4Q2N/1P1bN1Pn/q5B1/P1br2R1/bnn4r/p1B1k2r/1R2r3/1n2BBKQ b - - 0 1 illegal: No proof kernel
Nrk2br1/6bR/2Q5/Np2nPR1/1rbq1rbP/2QN4/4N1KP/qB3nB1 b - - 0 1 legal: proof: e4 d5 b4 a5 c4 axb4 cxd5 h5 g3 h4 gxh4 f5 Bd3 fxe4 Ba6 Qd6 Bf1 Qd8 d4 Kd7 f4 c5 Kf2 e5 a4 g5 d6 b5 a5 e3+ Kf3 e4+ Kg2 e2 d5 e1R a6 c4 a7 e3 Ra4 c3 Bd2 c2 Bc3 c1Q Qc2 g4 Na3 e2 Nc4 b3 Qa2 g3 Qc2 b2 Kh3 b1B Nb2 g2 Bd4 Ne7 Nd3 Nbc6 Qc3 Rb8 a8N Nf5 Bb6 Ba2 Ra7+ Qc7 Be3 Rg8 Rb7 Kd8 d7 Ne5 Bf2 Ne3 f5 Qb6 Ra7 Qa1 Qc6 Rd1 Rb7 e1B Ne2 Qa7 Bg1 Q7d4 Qc3 Rb1 Ra7 Ke7 d8N+ Bb7 d6+ Kd7 Nc6 Kc8 Na5+ Bc6 Rg7 Bc4 Rh7 Bf3 d7+ Kd8 Bf2 g1R Bg2 Rf1 Rg1 Bh5 Be4 Rb4 Rg5 Bg4+ Kg3 Bd2 Bg1 Bg7 Rgh5 Rf4 Rg5 Nf1+ Kg2 Qd6 Nc5 Be1 Bb1 Bf2 Nd3 Bc5 Qc1 Qdd4 Qe1 Bcf8 Qc3 Ke7 d8Q+ Kf7 Qb6 Ke7 Bc2 Kd7 Bb1 Kc8 Qc6+
qBr1R1rn/QqN2QNn/3k4/p1r3PP/r1RN3b/3b3N/b2b1P1K/3B4 b - - 0 1 illegal: No proof kernel
2K3b1/R3r1bb/3Pnr2/3qQq2/1BRQBb2/P3r1Rr/1P1pN3/kn2N1R1 b - - 0 1 illegal: No proof kernel
3q2kB/3RPqr1/2Qbr1RP/2p1Nb2/4P2Q/1bQBrn2/6Nr/QK1b2n1 b - - 0 1 legal: proof: f4 a5 g4 d5 b4 axb4 c4 e5 fxe5 h5 cxd5 hxg4 h4 g5 a4 c5 e4 b5 d4 f5 Kd2 Kf7 Kc2 f4 a5 f3 d6 b3+ Kb2 g3 d5 f2 h5 g2 d7 g4 d6 b4 a6 g3 a7 Nh6 e6+ Kg8 Nc3 Nc6 Ra3 Nf5 Bd2 Ncd4 Be1 Nf3 Qd5 N5d4 Ka1 b2+ Kb1 Ne2 Qc6 Rb8 a8Q Rb6 Nd5 Rh7 Nh3 g1R Bc3 g2 Ne3 Rg7 Rh2 Rh1 h6 g1R Ra7 R1g3 Ng4 Neg1 Rg2 Rh2 Bd3 f1B Nf4 Be2 Rc7 Bd1 Ne5 Rgh3 Rg6 Be7 Ka2 b1B+ Ka1 b3 Ng2 Ba2 Kb2 Qe8 d8Q Ra6 d7 Bd6 Qg5 Qd8 e7 Rb6 Qh4 Rg3 Ka3 b2 Qa7 b1Q Bd4 Qf8 d8Q Bf5 Rd7 Bab3 Ba1 Ra6+ Qa5 Qd8 Bd4 Rb6 Qc3 Qc2 Qaa4 Qf2 Qaa5 Qf1 Kb2 Rgh3 Kb1 Rg3 Bc2 Qc4 Qa3 Qf7 Bd3 Bb8 Nf4 Ng5 Qca8 Re6 Ng2 Re3 Nc6 Bd6 Qaa1 N5f3 Bf6 Qff8 Ne5 Qf7 Rg4 Rg5 Bh8 Rgg6 Qc6 Rg7 Rg6
qBr3nq/BRP5/K2Nn1B1/p2qn2b/1RB5/P2Q1r2/NPq5/1k1nQb2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 h4 g5 c3 gxh4 Be2 c4 Bd3 Bg7 Bf1 Be5 Bd2 Bd6 Bc1 Bc5 dxc5 b4 Qd5 bxc3 Qd4 Qa5 Qd1 Qd8 Ke2 Kf7 f4 Kf6 g4 a5 a3 h5 c6 e5 c7 d5 Qb3 c2 Qf3 h3 Qg3 d4 Qe3 c3 Kd3 h2 Kc4 d3 Kb5 h4 Qd2 h3 Ne2 e4 Ng3 e3 Qe1 e2 Be3 c1Q Ba7 c2 Nc3 d2 Na2 Qd1 Rc1 Nc6 Bb8 Ba6+ Kb6 Ne5 g5+ Kg7 f6+ Kg6 Rg1 h1B f7 h2 f8Q Rh3 Nf5 Bf3 Rg4 h1Q Nd6 Qc8 Rh4 Bh5 Qd8 Rf3 Qd7 Qf8 Qd8 Qh6 Bg2 Qh8 f5+ Kh7 f6 Kg6 f7 Bd3 Qf1 e1N f8B Ba6 Rb4 N1d3 Qf2 Nf4 Qe1 Bf1 Kb7 Ne6 Rb3 Rf5 Be4 Qdf3 Rd1 c1Q Kb6 Qcc3 Rc1 Qcd3 Rc4 d1N Rcb4 Qc2 Qd7 Qfd3 Qb5 Qd5 Qd3 Qf3 Bg7 Nf7 Bd4 Ne5 Ba7 Qh1 Ka6 Rc8 Bb8 Qhg2 Bda7 Qa8 Qde2 Qf3 Bd3 Qfd5 Bc4 Rf3 Qd3+ Kg7 g6 Kf6 Ne4+ Kf5 g7 Ne7 g8B Kf4 Bf7 Ng8 Rb7 Kf5 R3b6 Kf4 Qb4 Kf5 Nd6+ Kf4 Qg6 Ke3 Qg3 Kd4 Bg6 Ke3 Qb3+ Kd2 Qh4 Ng4 Rb4 Ne5 Nc3 Kc1 Na2+ Kb1 Qe1 Nd3 Qbc3 Ne5 Qd3
1bq2rr1/1Pq1Q2b/r5Q1/1B4RK/1Q2P1PB/R1n3rp/Nn5Q/3k1qqN b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 e4 Ke5 g4 Kd4 b4 c5 b6 f5 d6 a5 d3 h5 b7 a4 d7 c4 b5 a3 b6 a2 Nc3 h3 Ba3 h4 Nb1 h2 Be2 h3 Nc3 Qc7 d8Q+ Nd7 b8Q Ne7 b7 Nd5 Qb1 Bd6 Qf8 Ne5+ Kf2 f3 Kg3 Ke3 d4 Kd2 Qf7 f2 Bc5 f1Q Nd1 c3 Qb2+ c2 Nf2 Rf8 Kh4 f4 Qg6 f3 Bb5 Nc4 Kh5 Nc3 d5 Bf5 Ne2 Qg1 Qb4 Nb2 Nc1 Rg8 Rb1 a1R Na2 c1Q Be3+ Kc2 Bg5 Be5 d6 Bg3 Qe6 Bh7 d7 Be5 d8Q Rf8 Nd1 f2 Qg6 f1Q Qde7 Bd6 Bh4 Qc8 Qa7 Bb8 Nf2 Qf4 Rd1 Qfc7 Rd5 Rg8 Rg5 Kd2 Nd3 Kd1 Qf2 Ra6 Qg3 Rc1 Qf2 Rc2 Qf4 Rf2 Qfd6 Rff8 Qf4 Qe3 Rg1 h1R Rg3 Rg1 Nf2+ Kc2 Rf3 Rg3 Nh1 Kd1 Qfe5 Qeg1 Qf4 Nca4 Ra3 Nc3 Qf2 Qh2 Qg2 Qhg1 Qh2
k3Bn2/2Pr3Q/1n5q/1n2r1r1/2RR1N1P/B1pn1bqQ/2P1RR2/2nK2nN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Ra6 c5 Ra4 c4 Ra1 Bc5 dxc5 Kf8 Ra5 Ke7 Ra1 Ke8 b4 g5 h4 a5 e4 f5 b6 d5 b7 Kd7 c6+ Kc7 e5 g3 b5 a4 e6 a3 e7 c3 e8Q g2 Qe3 g4 Qee2 d4 Qe5+ Qd6 Qde2 f3 Q2e3 g3 Qf6 f4 Qf8 a2 Kd1 f2 Qe1 f3 Bd2 d3 Nh3 g1N Qh6 g2 Qg5 Na6 b8R Nf6 Qe2 Nd7 Qe4 Rh7 Nf4 Qh6 Qef5 Nf8 Be1 d2 Qg8 Bb7 Bd3 f1Q Be4 f2 Qh3 Rd7 Bg6 Qd3 Rd8 f1N Rh2 Qg3 Qh7 Kb6 Bh5 Ka7 Be8 Nc7 Rc8 Rb8 b6+ Ka8 Bf2 Nb5 Bc5 Ne2 c7 g1N Rf2 Nc1 Ba3 Bf3+ Re2 Nd3 Rd8 Re7 Rd5 Re5 Rd4 Rd8 Rc4 Rdd5 Rd4 Rg5 Rc4 Rde5 Rd4 Nh2 Rc4 Ng4 b7+ Ka7 b8R Nf6 Rb6 Nd5 Rd6 Nb6 Rdd4 Ka8 Rd5 Be4 Rf2 Ne1 Rd3 Ngf3 Ke2 d1R Nd2 Qh2 Rc1 a1N Rb1 Nb3 Nf1 Qg1 Re3 Rd7 Ng3 Bd5 Rd4 Nc1+ Kd1 Ned3+ Re1 Bb7 Nh1 Qg3 Rbb4 Ng1 Rbc4 Bf3+ Ree2
8/Bqk1Pqq1/pNRn2B1/3rn1qR/P1q3R1/2P4N/2rqR2K/b3rQQ1 b - - 0 1 illegal: No possible last move, all moves rejected
1NN2Bb1/n1Q5/1n1b2RK/4qBQp/2bqn3/4nP2/B1BkPn1P/3n1rR1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 a5 Be3 axb4 Bc1 e5 fxe5 b5 Bd2 f5 Be3 f4 Bc1 f3 Kd2 f2 Nh3 Ra3 Ng1 Rf3 gxf3 Be7 Qe1 Bc5 Qd1 Bf8 c4 Kf7 a4 Kg6 e6 Kf5 a5 Kf4 e7 g5 e8Q h5 a6 d5 a7 d3 a8B b3 c5 d4 c6 b2 c7 b4 Qe7 g4 Qe1 g3 Qd1 b3 Ra7 g2 Bc6 Qd6 Ra3 Be6 c8B Nf6 B8b7 Rg8 Qc2 Nfd7 Qc5 Nb6 Be4 Bc4 Qcc7 Qe5 Nc3 b1B Na2 b2 Nb4 Nc6 Ra6 Na7 Nc6 Bba2 Nb8 Rg6 Qg7 Bd6 Bbc6 Bg8 Bcd5 Bc4 Be6 b1Q Ba3 Qa1 Bc6 Rg5 Ba4 Qb2+ Bc2 Qb4+ Kd1 Ke3 Nh3 g1N Nf4 d2 Bfh3 f1N Ng6 Ng3 Bhf5 Nh3 Ne7 Ne4 Nc8 Qbc5 Rf1 Rg1 Re1 Rf1 Qg5+ Qf4 Bb4 Qe5 Ba3 Bb5 Ba2 Bbc4 Bcb1 Nhf2+ Kc2 Rh1 Rg1 d1N Kc1 d3 Bc2 Ndc3 Bb4 Ncd5 Ba3 Ng4 Kd1 Ngf2+ Ke1 d2+ Kf1 d1N Kg2 Ng4 Kh3 Kd2 Kh4 N5e3 Bc5 Qd4 Ba3 Qfe5 Bc5 Nd5 Rc6 Nb6 Ba3 Be7 Rg6 Ngf2 Bc5 Bd8 Bf8 Be7 Qf6 Bd6 Qfe7 Ng3+ Kg5 Nge4+ Kh6 Nb2 R1g3 Rf1 Rg1 Nbd1 Qg5
B1kQN2N/1N5p/1RK1N2R/P1Pn4/4n1rr/QqpbP3/1qr2b2/2b1n1B1 b - - 0 1 illegal: No proof kernel
3QK2R/b3NP2/r3R1Qp/3qBn2/k2n1N1q/P4BBr/1P1bn1p1/1b4Bq b - - 0 1 illegal: No proof kernel
R3B3/R2P3q/K2n2N1/2P3rk/1q2P2b/1nB1r2b/pnr3p1/Q1Rb1RQN b - - 0 1 illegal: No proof kernel
b2b3K/kPBrP3/1qrP4/1BN3n1/4np1B/2prQ1RB/1q1bNR2/Q6n b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb7 d4 a5 e5 h5 d6 c4 d7 a4 e6 h3 b6 h2 b5 h4 d5 a3 g5 h3 d6 a2 g6 Ra6 g7 Nf6 g8B Nh7 Qe1 Be7 Ne2 c3 Rg1 h1R Bd2 h2 Rg3 Ra7 Bg2 Na6 Bh3 Nc5 Bf7 Qc7 d8Q Ne4 Qe8 Bd8 e7 Rg1 Bc4 h1N Qc6+ Kb8 b7 Qb6 Qc5 Bd7 Qd4 Bc6 Qe3 Rg8 Qc1 Rd1 Be1 Rd3 Nd2 Ra6 Bf2 Ka7 Nb3 Rh8 Rb1 a1B Nc5 Bb2 Qe1 Bc1 Rb2 Bd2 b8B+ Ka8 Bc7 Ka7 Qa1 Ba8 Rg5 Rf8 Bh4 Rg8 Rg3 Nhg5+ Kg2 f3+ Kh2 f2 Kg2 Nf7 Kf3 Nfg5+ Kf4 f1Q+ Ke5 f4 Rc2 Nef2 Kf6 Qc1 Rb2 Rf8+ Kg7 Nfe4 Rc2 Rf6 Kh8 Qb2 Rc1 Rf5 Rf1 Rfd5 Rf2 R5d4 Bce6 Rda4 Bd7 Rc4 Nb7 Rc6 Nc5 Ra2 Bc8 Qa5 Bb6+ Kb8 Bce6 Qab4 Bc4 Ra7 Ba5 Rac7 b6 Rd7 b7 Ka7 Bc7+ Qa5 Ba6 Qab6 Bb5+
2q1nQbB/1PPB4/1r1qQRn1/N1kb2K1/2q3n1/6P1/1b1prNp1/1Q1R2Q1 b - - 0 1 illegal: No proof kernel
2B3nb/3r1k2/2Kb1QNp/Bn1n1Q1P/B1P1P3/1B2Nb1p/3b1q2/R1b1r2R b - - 0 1 illegal: No possible last move, all moves rejected
2BB2nb/QK3b2/n1R1pqNR/4P1Rn/2NQ3p/bR1r1nPP/2n5/2r2k2 b - - 0 1 legal: proof: c4 a5 f4 d5 cxd5 g5 a4 gxf4 b4 b5 axb5 axb4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 d6 f5+ Ke5 c5 b6 h5 d5 h4 d7 b3 d6 b2 b7 f3 h3 f4 Rh2 f2 Rh1 f3 Ra2 Na6 b8Q Bg7+ Ke6 Ra7 Bg5 Rc7 Ra3 Bb7 Bf6 Bd5+ Ke5 Be6 Qa7 Bf7 Rb3 e6 Rh2 Qe7 d8R Rh7 d7 Bh8 Rc8 Qd8 Bg7 Qf6+ Kd6 Rh5 d8R Re5 Bh6 Re3 Nd2+ Kd4 Qb7 b1N Qa7 Rd3 e4 Na3 e5 Nc2 Be2 f1N Bg5 f2 Nc4 Nd2 g3 f1N Rf2 Nfe3 Rf5 Ng2 Bf3 Nf4 Bb7 Nh5 Qa1+ Rc3 Ne2+ Kd3 Rd7 Nf3 Nf4+ Kd4 Ng6 Kd3 Qg1 Ke2 Qd4 Kf1 Rdd8 Rd7+ Kc6 Rd3 Kb6 Re7 Rc6 Rc7 Na3 c4 Bc8 c3 Nc4 Ne1 Rf8 c2 Re8 c1B Re7 Be8 Rh7 Nc2 Rh6 Bf7 Rb2 Qg7 Rb3 Ba3 Bd8 Qf6 Rg5 Rd1 Qd5 Rc1 Qd6 Rd7 Qd4 Rd5 Kb7 Rd6 Qf4 Rd3 Qfd4
R1Nkb2r/b1r1N1n1/1bPK2PB/p2B1Q2/bBqB3n/7R/2b1p1P1/2rQ4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 d5 f4 a5 c4 h5 b4 e5 g6 e3+ Kd3 h4 c5 e2 f5 e1B f6 h3 b6 h2 b7 Nh6 b5 Qc7 f7+ Kd8 b6 Nf5 Ba3 Ng7 Nh3 Nd7 b8Q Ra7 b7 Bf2 Ng5 Qc6 Nc3 e4+ Ke2 e3 Kf3 d3 Kf4 d4 Rb1 d2 Qe5 d3 b8B Ba6 Nd5 Rc7 Ba7 Bb5 Qf5 Ne5 Bb4 Nf3 Ne7 Nh4 Ke5 Qe4+ Kd6 Be8 c6 Qc4 Ne4 Bg1 Qdf3 d1B Bd4 Bc2 Qd1 d2 Be2 Bf2 Bf3 e2 Rb3 Be3 Rf1 h1R Ra3 Ne6 Rc3 Bg7 f8B Bf6 Bh6 Ng7 Rf2 Bfg5 Rb3 Re1 Rf1 Bf2 Rh1 Bge3 Rh3 Rg1 Nc3 Rf1 Bd5 Rh1 Ne4 Rf1 Bdc3 Bb6 Bd4 Be3 Nf6 Bg1 Nc8 Ba7 Ng8 Re1 Qc1 d1B Nge7 Rf1 Rbf3 Ba4 Rb3 Bc2 Qd1 Be3 Be1 Rg1 Rb8 Rh1 Ra8 Bg1 Bb2 Bgb6 Bd4 Rg1 Bb4 Re1 Qd2 Rc1 Qd1
3Q3K/bbb1R1BQ/P1qp2N1/N1R3nr/3r4/1PQ1Qb2/2Pn1p2/bB2rk2 b - - 0 1 illegal: No proof kernel
B1k5/bb1n2P1/r1p4K/Qnp5/1BbP2q1/R1BQNB2/P1b5/r2bNRr1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 b4 axb4 h4 d6 c5 dxc5 hxg5 Ra7 Qb3 Ra3 Qd1 Ra8 Ke2 Kd7 Ke3 h5 Kf4 b5 g4 h4 d4 h3 f3 h2 f6 b3 g6 b4 Kg5 b2 f4 b3 f5 Na6 g7 Bb7 f7 Kc8 f6 Qd7 Nc3 b1B Qe2 b2 Qd3 Bc2 Nd1 b1B Ne3 Bd1 Bg2 Bbc2 Bb2 Rh6 Bf3 Rg6+ Kh5 Bd5 g5 Bc4 Rb1 Ra7 Bc3 e5 Rb3 e4 Ra3 Bd6 f8B Be5 f7 Nf6+ Kh4 Qe6 g8B Nd7 Kh5 Rg7 g6 Qg4+ Kh6 Ra8 Nd5 e3 Bb4 e2 Ne3 e1R Be7 Ndb8 Bd8 Nd7 f8Q Rf1 Bgd5 Rg8 Nh3 Re1 Rf1 h1B Bde4 Ra7 Ba8 Bg2 Be2 Bb7 Nf2 c6 Bf3 Bb8 Qe7 Rg7 Bda5 Nc7 Bc3 Ra6 Bab4 Nb5 Qe6 Rf7 g7 Ba7 Qee4 Rf8 Qd2 Rf5 Nd3 Rg5 Qg6 Be2 Qf5 Ra1 Ne1 Bed1 Qfd3 Qe4 Qc1 Rg1 Qb2 Qf5 Qb3 Qe4 Qa4 Qg4 Qa5
2KR3r/qPPB1r2/3b1PrQ/2n1N2p/4QrpR/1kRb3N/3R3n/2b2rB1 b - - 0 1 illegal: No proof kernel
nbr2r1Q/2N3N1/KP1Q3q/B2n1b1p/1R4Rk/1p1N1r2/1P1r2nP/1BbN4 b - - 0 1 illegal: No possible last move, all moves rejected
n2n1n1N/BBpr3k/1NQBq3/pR3r1b/2P3b1/r3B3/Q1P3rP/2K1Rb2 b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 h5 Kf2 hxg4 Ke1 b5 axb5 Bd6 Kf2 Bb4 Ke1 Bc3 dxc3 Kf8 Nd2 Ke7 Nb1 Ke8 Kd2 Kf8 b4 f5 e4 g5 c4 Kg7 b6 d5 b7 f3 e5 f4 e6 d4 e7 g3 e8Q d3 b5 f2 b6 g4 Nc3 g2 Nd5 g3 Nc3 f3 Rb1 Qd5 Qd7+ Ne7 Qd6 Rf8 Qe6 Nbc6 b8B Kh7 b7 Nd8 Nge2 g1R Bb2 g2 Qd6 Qe6 Qa3 Rf5 Bc1 Ng6 Qa2 Nf8 Ba3 a5 Kc1 d2+ Kb2 Ra6 Nd5 Rd6 Nef4 Rd7 Bd3 f1N Nb6 f2 Be4 Ne3 Ba7 f1B b8B Nd5 Qf3 d1B Bd6 Bde2 Ng6 Bd1 Nh8 Bde2 Na4 Nb6 Bb7 Na8 Qc6 Bh5 Re1 Bd3 Re5 Ra1 Rb5 g1R Be3 Bf1 Bba7 Rg3 Nb6 Rg2 Qb1 Ra2+ Kc1 Ra3 Qa2 Qe5 Rb4 Rf3 Bdc5 Rd5 Bh6 Bd3 Bd2 Bcg4 Rb2 Rf5 Bde3 Qe6 Rb5 Rd7 Re1 Bf1 Bd6
bQn3rQ/1np1qRB1/Kp4kQ/P7/2RP1rP1/1B6/1r1Qb1NN/2bn1r2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 Ke2 Kf7 Kd3 e5 Kc4 h5 Kb5 b6 f4 b3 a4 e4 g4 h3 d4 h2 a5 b2 d6 e3 d7 h4 f6 e2 f5 e1R Bh6 h3 Bg7 Ne7 Na3 Na6 Nc4 Rg8 Ne3 Nc5 Ng2 Nb7 Ra4 b1R+ Rb4 Re4 Qd2 Rf4 Nf3 Rb2 Be2 Rb8 Rf1 h1B Ka6 h2 Bd1 Qe8 d8Q Qd7 Bh8 Bh6 Rc4 Qe6 Ba4 Bd7 Bc2 Nc8 Bb3 Qe7 Bg7 Bc6 Rf2 Be4 Rf1 Bd3 Qd6 Rf8 Qd8 Be2 Qd6 Kg8 f7+ Kh7 f6 Kg6 Qe5 Rg8 f8Q Bg5 f7 Bh6 Nge1 Bg2 Qee3 h1N Nh2 Nf2 Qh3 Be4 Ng2 Bg5 Qh8 Nd1 Re1 Rf1 Qd8 Be3 f8Q Rf4 Rf1 Bc6 Qe1 Bc1 Qd2 Be4 Rf3 Bc6 Rh3 Rf1 Rf3 Bd5 Qff4 Rf8 Qfe3 Rf4 Rf2 Be4 Qeh3 Bd5 Q3h6+ Kf7 Bc2 Ncd6 Bb3 Rf6 Ka7 Nc5 Nf3 Ba8 Ng1 Ncb7 Nf3 Rc8 Ka6 Rb8 Qd7 Rg8 Qc8 Rf5 Qb8 Nc8 Nh2 Rf6 Qhe3 Kg6 Rf4 Rd6 Rf7 Rdf6 Qeh3 R6f4 Q3h6+
4N1BR/1p2Q3/nP2N2B/r1Qq1PKP/p4r2/1rRnb1b1/1Bb1nr2/3B3k b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Qa5 a4 Qxa4 d3 Qa2 d4 cxd4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 c4 e5 h4 g5 b4 d5 b5 a5 c5 a4 c6 d3 b6 d4 c7 d2 h6 d3 h7 Bh6 h5 Ra5 Qc2 d1R Qc3 d2 Bc4 Nf6+ Kh3 g4+ Kh4 g3 Bb3 g2 Rh3 Ng4 f6 Rf8 h8B Nf2 f7 Bf5 c8B Nd3 Nf3 g1N Nd4 Na6 Na3 Ne2 Bce6 Rf1 Bd1 Qd5 Qc5 Rf2 Nab5 Bh7 Nc7 Bg6 Bc2 d1R Ne8 Rdf1 Bb2 Rb1 Bd1 Bf5 Bc1 Rb3 Rg3 Bh7 Rg8 Bg6 Ra3 Bh7 Nf5 Kf3 Nfg7 Kg2 Qe7 e4 Bb2 Rbb5 Rc3 e3 Bc1 Kh1 Qc5 Qd4 Bd5+ Be4 Ne6 Rb3 Bf6 Qc4 Rh8 Qd4 Bc4 Qd5 Bg5 Ng3 Qe7 e2 Bb2 e1B Kg4 Ne2 f5 Rg8 f8Q Rf4+ Kh3 Bg3 Qc5 Rg6 Qfe7 Rf2 Bf4 Rg4 Bd2 Rgf4 Be3 R4f3 Kg4 Bg5 Bec1 Be3 Bd2 Rf4+ Kg5 Qd7 Nf8 Qd6 Bg8 Qd5 Bdc1 Ne1 Ne6 Bc2 Bd2 Nd3 Qd4 Rg4+ Kf6 Bh6 Qdc5 Rgb4 Be1 Bc1 Bd2 Rg4 Bf4 Be3 Bh6 Rgf4 Kg5
4NbRb/bRB3q1/1r6/PN1q2bP/1r1B1Q1B/nQPBp3/K3b2p/4k2n b - - 0 1 illegal: No possible last move
2q1R1RR/1qB2b2/1n3Kpp/PbN2b2/6P1/1r1bNB1k/n1P3rb/5QQR b - - 0 1 legal: proof: e4 a5 d4 c5 h4 cxd4 b4 axb4 h5 f5 exf5 g6 h6 Qb6 Ba3 Qf6 Bc1 Qg7 hxg7 Ra6 Bd2 Ra7 Bc1 Ra8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 a4 d5+ Kf4 e5+ Kg4 d3 f4 e4 g3 d4 a5 d2 Ra4 d3 Ra3 b3 Qe1 d1B+ Kh4 b2 g4 b4 Rh3 d2 Qe2 b3 Rg3 e3 Qd3 e2 Ra1 e1Q Na3 b1Q Qc4 b2 Qe4 Na6 Qf3 Qe8 Bg2 Rb8 Rh3 Rb3 Qe3 Nb4 Bf3 Na2 Ne2 Ne7 g8R Nd5 Qg1 Nb6 Nd4 Be2 Ne6 d1B Nc5 Bd6 Nc4 Bd3 Ne3 B1e2 Bd2 Be6 Be1 Bb5 Bg3 Bed3 Bh2 Qc8 Bg3 Kf7 f6 Bef5 Kg5 Bb8 Qh2 Qh1 Qg1 Qg2 Re1 b1B Rh1 Be5 Nb7 Ke6 f7 Bc7 Nc5+ Ke7 Bd1 Qgb7 Bf3 Kd6 Kf6 h6 Rg7 Rd8 f8R Re8 Rgg8 Re5 Nd1 Re2 Rh8 Rg2 Ree8 Bfe4 f5+ Kd5 Be1 Bh2 Rfg8 Kd6 Bg3+ Kd5 Nf2 Kd4 Bc7 Ke3 Re5 Kf4 Nd1 Kg3 Ne3 Kh3 Ree8 Qba8 Kg7 Qcb7 f6 Qac8 f7 Bf5 f8Q Nb4 Qe7 Rb2 Qe5 Ba2 Kf6 Bf7 Qd4 Rb3 Qda1 Na2 Qaf1
Nq6/QB1bKR1n/5n2/4B1q1/Rr1PbP1P/2pk1nNr/1Q1R2p1/1b2b2R b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 exf5 hxg4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 b5 a4 g5 f4 b3 d6 g3 h3 b2 f6 g2 d7 b4 Ke6 Kd4 a5 c5 f7 c4 d3 b3 a6 g4 a7 g3 Na3 b1B Qc2 b2 Qd1 Nf6 Ra2 Nh7 Kf5 e5 Ke6 e4 Qc2 Bb4 f8R e3 Rf7 e2 h4 e1N Bd2 Nf3 Bc3+ Ke3 Bf6 Be1 Ne2 g1Q Nb5 c3 d4 Rg8 Be5 g2 Ng3 Qg5 Qa4 Be4 Nc7 b1B Ba6 Qf2 Qb5 Qb2 Bb7 Kd2 Qa4 Kd3 Kd6 Qb3 d8Q Nd7 Qf6 Qb5 Ke7 Rb8 a8R Qb3 Qa7 Qb2 Bc6 Rb4 Bb7 Rg7 Ke8 Rg6 Qfb6 Ndf6+ Ke7 Bd7 Ra4 Qf5 Rb8 Rg4 Na8 Qg5 Nh5 Rg3 Re8 Rh3 Ng3 Rc4 Qb5 Qa1 Qb2 Rb4 Rc8 Qa2 Rc5 Qc4 Rca5 Qc7 Ra2 Qb8 R5a4 Be8 Qa1 Bb5 Rf2 Be8 Qb2 Bd7 Rd2+
5n1K/1Qq3B1/1N6/2pBbk2/1RB1qrnp/1NP5/1R1rPP1B/bqrQ3r b - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 f5 Bg5 fxg4 Bh6 Na6 Bc1 Nb8 h3 g5 Qd2 g3 Qf4 g2 Bd2 g4 Bc1 g3 Qd2 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Bh6 Ra3 Bg7 Ra1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 h5 b4 d5+ Kf4 c5 b6 a5 c3 a4 b7 a3 b5 a2 b6 d3 Nf3 g1R Bg2 d4 Ne5 d2 Rh4 d3 Bd5 g2 Nc4 Nd7 b8B Ra4 b7 Bg7 g5+ Kg6 Be5 Ngf6 b8Q Ng4 Qb7 Nf8 Ke4 Qc7 Bh2 Bd4 Nb6 Be5+ Bc4 Rb4 Kd5 Kf5 g6 Rf1 g7 g1Q g8B Rh6 Qa4 d1R Nd2 Qg3 Nb3 d2 Rb1 a1B Rb2 Rh1 Bf7 Rdg1 Bg8 d1Q+ Bd2 Qc2 Bg5 Rf6 Bh6 Rc1 Bg7 Qe3 Bf7 Qb1 Qd7+ Kg5 Be6 Rf4 Bg8 Nh7 Ke6 Qee4 Qd1 Ra4 Bd5 Rd4 Bf7 Rd2 Bc4 Qcc6+ Ke7 Qc8 Bfd5 Kf5 Kf7 Qc7+ Kg8 Nf8 Kh8 Qec2 Rh3 Qe4 Rd3 h4 Rd4 Rdc2 Bd3 Rd2 Rb4 Rdc2 Bb5 Rd2 Bbc4
2qn1r1B/2rR4/3b1nB1/2pr1pP1/b1PB2k1/1N2R2Q/1Pqn1BK1/Qn3N2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e6 d4 e5 Qd3 Rh7 Qg3 Rh8 dxe5 gxf4 g5 Nc6 Qh3 Nb8 Qg4 hxg4 Kf2 Ke7 e4 Ke6 h4 a5 c4 d5 h5 c5 b6 f3 h6 d4 b7 a4 h7 d3 Nd2 a3 Kg3 f2 Bh3 f1N+ Kg2 a2 Ngf3 Bd7 Nh2 Ra7 Nb3 Nf6 Be3 d2 Re1 a1Q Bd4 d1N Re3 Nd2 Nf1 Nc6 b8B Qc8 Rh2 Rg8 h8B Qc1 Rh1 Nd8 Rg1 Ke7 e6 g3 e5 Qc2 Bf5 Nc3 Bg6 Ncb1 Rh1 Ba4 Rh7 Rc7 Rg7 Ke8 e7 Kd7 e6+ Kd6 e8Q Be7 Kh3 g2 Kg3 Bf8 e7 g1R+ Kh2 Rh1+ Kg2 Rh4 Qb5 Re4 e8Q Re5 Rh7 Rd5 Qa5 Be7 Qeb5 Rf8 Qba6+ Kd7 Qc3 Bd6 Qaa5 Bc6 Qa1 Ba4 Be4 Ke6 Bg6+ Nfe4 Qd3 f6 Rd7 f5 Rg3 Nf6 Bf2 Ke5 Re3+ Kf4 Qc3 Kg4 Qd3 Bh2 Qc3 Rc6 Be5 Bf4 Bd4 Bd6 Re5 Rc7 Qh3+ Kf4 Qh7 Kg4 Re3 Nde4 Qh2 Ned2 Qh3+
3Br1qQ/2r1R3/2k4R/PR1b3N/2N1pqn1/nnR3P1/KQpn2P1/b3qB2 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 g5 b4 axb4 e5 g4 e6 g3 hxg3 fxe6 Qc2 e5 Qd1 e4 d4 Kd7 Kd2 c5 Kc2 e5 Kb2 h5 a4 b5 f4 e3 d6 b3 f5 e2 a5 e1Q f6 c4 d5 c3+ Ka3 c2 f7 h4 Nh3 b2 Qd2 e4 Qe2 b4+ Ka2 b3+ Ka3 Bb7 Qd1 Nf6 Nd2 Ra7 Nf4 h3 Rb1 h2 Nc4 Nc6 Qd4 Ng4 Nh5 Bg7 Bg5 Re8 f8Q Bf6 Qe5 Nd4 Qh8 Qf2 Bh4 Qf4 Bg5 Bg7 Be7 Qb8 Bd8 Ba8 Qf6 Rc7 Qe5 Kc8 d7+ Kb7 d6 Kc6 Be7 Qc8 d8R Qe6 d7 Qg8 Rc8 Bb7 Rg1 h1Q d8R Bf6 Rd5 Bg7 Rd1 b1N+ Kb2 Ba8 Bd8 Na3 Rb5 Bb7 Ka1 b2+ Ka2 Nb3 Rd7 b1N Re7 N1d2 Qb2 Ba8 Qb1 Ba1 Qbb2 Qh2 Rh1 Qg1 Rh4 Qge3 Rh3 Qe1 Rcb8 Nd4 Rb3 Bb7 Rc3 N4b3 Rh4 Bc8 Rb5 Be6 Nf6 Bf7 Rh6 Bd5 Nh5+
3Nnk2/2B5/2rR1q2/P4Q1b/pBq1r1N1/Pr1QqRr1/p1BPB3/b2n1K2 b - - 0 1 illegal: No proof kernel
1krr1q1b/2BQ1n2/2n2b1p/2P1n1QK/B1BR4/1R1bNpN1/B4P1P/3b3q b - - 0 1 legal: proof: d4 c5 b4 e5 a4 exd4 bxc5 b5 axb5 Bb7 Bg5 Be4 Bc1 Bxg2 c4 a5 e4 d5 Ke2 Kd7 b6 Kc8 e5 g5 e6 f5 c6 d3+ Ke3 d2 c5 a4 c7 g4 Kf4 d4 e7 a3 Kg5 g3 Qc2 d1Q Qd3 a2 Na3 f4 Nc4 Nc6 Ne3 Nh6 Ne2 Be4 Kh5 g2 e8B g1N Rb1 a1B Rb3 Nf7 Bd2 h6 Ba5 Nf3 Ng3 Bg7 Bd7+ Kb7 c8B+ Kb8 b7 Qf8 Bb6 Bf6 Qb5 Bb1 Bc4 d3 Be8 d2 B8e6 Qc1 Rd1 N3e5 Bed5 f3 Qa4 Ne7 Qd7 Rg8 Qh3 Bb2 Ba4 Bd3 Qd7 N7c6 Bcb5 Ng4 Qf5 Bh8 Qf6 Bg6+ Kh4 Qd6 Nef5 Ra7 Ra3 Rc8 Qg5 Bbf6 Ba2 Nge5 Ne3 Qf8 Bbc4 Rd8 Rd3 Be4 Rd4 Bd3 Kh5 Qb1 Rc1 Rc8 Rc2 Qh1 Rc3 d1B Rb3 Ne7 Bd8 Ra6 Ba5 Rd6 Bb6 Rd5 Ba7+ Kc7 b8Q+ Kd8 Qb5 Kc7 Qe8 N7c6 Bb6+ Kb8 Qe7 Rdd8 Qc7+ Ka8 Qd7 Kb8 Bc7+
k4Brr/2q1BKb1/Nr3pp1/1b1P4/1bPb1P1q/1NRRB1n1/4n3/Q2B3Q b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 hxg4 Ke2 Kd7 Ke3 Kc7 Kf4 Kb7 Kg5 a5 f4 f6+ Kg6 e5 h4 g3 d4 e3 c4 a4 b6 a3 h5 e2 c6+ Ka6 c7 Kb7 h6 e1R h7 e4 d5 g2 Nd2 a2 Nh3 g1Q+ Kf7 e3 Nb3 g6 Nf2 e2 Rh3 Qh1 Rd3 Bd7 Be3 Ne7 Rc1 a1B Ne4 Nf5 Rcc3 Nc6 Bh3 Ra6 Nec5+ Ka8 Bg4 Ncd4 Qc1 Qb8 c8Q Bb5 Qe6 Bg7 Qe4 Rg8 h8B Qh4 Qh1 Ng3 Bh5 Bb2 Qa1 Rf1 Bg4 e1B Bd1 Nde2 b7+ Ka7 Na5 Rb6 Na6 Qe5 b8B+ Ka8 Ba7 Bd2 Bc5 Qc7+ Be7 Rf2 Nb3 Rh2 Rc2 Bb4 Rcc3 Rb7 Be3 Rb6 Rc2 Bd4 Rcc3 Bh6 Bg7 Rh3 Bf8 Bg7 Nbc5 Qg5 Rb3 Rhh8 Rbc3 Qh4 Nb3
1N2b2R/QQKnR2Q/4P2p/2n2Q1r/P6P/q1B2Nrq/p2b1B1n/2q2k1n b - - 0 1 illegal: No proof kernel
K2B1kqq/b1BbNQ2/2n1pPrp/1Br5/1Q1qN1P1/2r1P3/r4RR1/1n1B4 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h3 f5 Qd3 fxg4 Qd2 g3 Qd1 g4 hxg4 Qb6 Nh3 Qc7 Ng1 Qd8 Kd2 d5 Kd3 a5 b4 h6 c4 g2 f4 a4 f5 e6 b6 a3 b7 a2 b5 Na6 b8B Bc5 b6 Qe7 b7 Qf7 Bg5 Qd7 e3 Qh7 Rh2 Bb6 c5 Qg7 c6 Nf6 c7 Kf8 Ne2 g1R Nd2 Qg8 Ne4 Bd7 c8B Ba7 Bc7 Nb8 Rg2 Nc6 b8Q Rh7 Qb6 Rg7 Ba6 Rg6 N2g3 Rc8 Rf2 Rg2 Bb5 Rh2 Rc1 a1Q Rcc2 Qb2 Qb1 Rh5 Nd2 Ne4 Bgd8 Nc3 Be2 Qa1 Qb7 Qb2 Qe1 Nb1 Nde4 Rhg5 Bd1 Qa1 Ke2 d3+ Kf3 d4 f6 d2 Kf4 d3 Nf5 Qd4 Ne7 Ra8 Be2 d1R Qb4 Rc1 Bd1 Rh5 Rg2 Rd5 Rcf2 d2 Qc4 Qc5 Bf3 d1Q Be5 Be8 Bb6 Qf7 Ng8 Qce7 Bd8 Bc5 Qb4 Qd2 Bd1 Ra2 Qc7 Ba7 Qd7 Nb8 Bec7 Rd3 Ke5 Qh7 Qc3 Qeg7 Qcd4 Rb3 Kd6 Qb2 Qb4 Qgh8 Ne7 Rba3 Nc6 Q7g8 Qh7 Rc5 Ne7 Rb3 Bb6 Nc6 Kc7 Rba3 Kb7 Bd7 Ka8 Qd4 Bbc7 Rac3 Qf7+
3Qk1N1/1brq4/2np2p1/r2P1rP1/4rnNK/P2R1BR1/n1R3R1/Q1bqB3 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 c6 b4 axb4 c3 bxc3 h5 g6 h6 Qb6 Bc4 Qd4 Bf1 Qg7 hxg7 Ra5 Ne2 Ra3 Ng1 Ra8 g4 b5 f4 e5 Kf2 h5 Kg3 h4+ Kh3 d6 d4 c2 f6 b4 d5 b3 f5 e4 a3 c5 Nd2 e3 Rh2 e2 Ngf3 e1R Bg2 b2 Ne4 b1Q Ne5 c4 Bd2 c1N Bf3 c3 Rg2 c2 g5 Na2 Ng4 c1R Bb4 Nc6 Bc3 Re2 Be1 Ra5 Rg3 Qb7 f7+ Ke7 Qd4 Nf6 g8R Nh5 Nef6 Bg7 f8R Re4 Rb1 Qd7 Qa1 Rcc4 Rb2 Bb7 Rbg2 Rc2 Rc8 Rf2 Rgd8 Rh7 Ng8+ Kf7 Rb8 Bb2 f6 Bc1 Rdc8 Rf1 Rc7 Rf2 Re8 Rf1 Re5 Kf8 f7 Nf4+ Kh2 h3 Re7 Rc4 Re3 Re4 Rd3 Rg7 Rg1 Rh7 R3g2 Rg7 Kg3 h2 Kh4 Rf2 Rg3 Rf1 R1g2 h1Q+ Rh3 Qg1 Rhg3 Qd4 Re3 Qd1 Rd3 Ncb4 Rcc3 Nc6 Rcc2 Ne6 Be2 Rf5 Bf3 Nf4 N8f6 Ke7 Ng8+ Kd8 f8Q+ Re8 Qf7 Re4 Qff6+ Ke8 Re3 Qe6 Rec3 Rc7 Rd3 Qd7 Qd8+
1q6/1N1Qn1qq/1KPq2k1/nP2n3/1p1QrQb1/Q3P2B/pR1b1NRr/6B1 b - - 0 1 illegal: No proof kernel
1QN2qb1/1K6/1PBp3p/rn1rPqb1/2n3Rn/k3Q3/NRB1q2P/q1R1R3 b - - 0 1 legal: proof: c4 d5 cxd5 Kd7 a4 g5 f4 gxf4 d6 b5 axb5 Ke6 d7 Kd6 d4 c6 d5 Qc7 d8R+ Bd7 Bd2 Qb6 Bb4+ Ke5 d6 Kf6 Bc5 Bc8 d7 Ke6 Bd6 exd6 Ra4 Kf6 Ra1 Ke7 Kd2 f5 Kd3 a5 Kc4 f3 e4 c5 Kd5 c4 b4 f4 g4 a4 g5 f2 g6 a3 g7 a2 Qc2 c3 Qd2 c2 Qc3 c1N Bh3 f1Q Qd4 f3 Bf5 f2 Be6 Na6 Na3 Nb3 Nc4 Nh6 g8B Qa5 Kc6 Nd2 b6 Qe2 b5 f1Q b7 Nf5 b8Q Bh6 Bd5 Nh4 Qe3 Qf8 Re1 a1Q Nb6 Nc7 Rc1 Ba6 Nc8+ Kf6 b6 Nc4 Re8 Nb5 d8R Bg5 Re5 h6 Bh7 Rg8 Rb1 Rg7 Rb2 Rga7 Ree8 Re7 Rd7 Re5 Rg7 Ra7 Ree7 Rf5 Rc7 Ke5 Rg8 Bf4 Rg4 Bg5 Nh3 Ra8 Re1 Ra7 Nf2 Ra8 Qh3 Kd4 Nd3 Kc3 Qe3 Ra7 Rc2+ Kb3 Nb4+ Ka4 Na2 Re5 Rb2 Ra8 Bf7 Rd5 Be8 Ra7 Qf4 Ka3 Qe3+ Qc3 e5 Qcd3 Qg1 Qdf3 Bc2 Q3f5 Qe3+ Nc3 Rg7 Bb7+ Kc7 Raa5 Bc6 Ba6 Rg8 Bb5 Rg6 Ba4 Rg7 Bb3 Kb7 Nb5 Rc7 Nd2 Bd7 Rd4 Bd3 Bg8 Rcc1 Nc4 Bc6 Rd5 Bc2+
4Q1q1/RB3b2/Np1RN2n/2q3B1/4P2P/1rr3pQ/nPb5/KR1brbkR b - - 0 1 illegal: No extended proof kernel
1BBKRRN1/1r1bBrb1/1p1Bb3/P5P1/3P1Q1k/3pr3/1qQ1n1q1/n1b3N1 b - - 0 1 illegal: No proof kernel
1n3n2/BrN1Nq1p/RP2rB1P/1b2B3/bKPrb3/p7/3QR3/1k2qQrB b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 Ra6 exf4 Ra5 Qb6 Ra1 Qd8 g3 f5 Ra2 f3 Ra3 f2+ Kd2 f4 Ra1 f3 Bg2 Bd6 Bf1 Bf4+ gxf4 Qg5 Nc3 Qf6 Nb1 Qd8 h4 Kf7 e4 Kf6 b4 d5 f5 Ke5 b6 a5 b5 g5 b7 g4 h5 a4 f6 a3 f7 d3 Kc3 d4+ Kb4 d2 f8B d3 Ne2 g3 Nec3 Kd4 e5 g2 e6 g1R e7 Qd5 e8Q Nf6 Qd7 Ra7 Bg2 f1B Ra2 f2 Bg7 Re8 Bb2 Re6 b6 Be2 h6 f1Q Rh5 Qe1 Nb5+ Ke3 Qf7 Nfd7 Bge5 Nf8 Bh1 Qd7 Qf5 Qf7 Nc7 Bf3 c4 Be4 Bbc3 Bd7 Qf1 Bb5 Qc2 d1R Rf5 Nbd7 b8B Rb7 Ba7 d2 Bf6 Nb8 Bce5 Rc1 Rh5 d1B+ Nc3 Ra1 Qcg2 Bda4 Re2+ Kd3 Rf5 Rd1 Rh5 Rd2 N3d5 Kc2 Ne7 Kb1 Qg5 Rd3+ Qd2 Rd8 Rg5 Rd4 Rg8 Nfd7 Rd8 Nf8 Rd5 Bc6 Ra5 Bcb5 Ra6
1N4q1/N1Q1qbp1/2Q1rB2/N7/qP2rPPb/1R1n3p/nNKR2kq/2B4r b - - 0 1 illegal: No proof kernel
Bb1R2K1/2b1BpPR/2B1q3/4PPqp/2Q5/Nr1b1Brr/Q3N3/kn1b3n b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 h4 gxh4 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf4 a5 c4 h5 e4 d3 g4 d2 c6 d4 b6 h3 f3 h2 g5 a4 c5 d3 b7 a3 c7 a2 g6 Nc6 b8Q Na5 g7 Nf6 Kg5 Ke5 c6 Kd4 f4 Bd6 f5 Nb3 Qb7 Ra3 Qg4 d1B Be2 d2 Qa8 Ba6 c8B Bc7 Bf3 Bd3 Bd7 Qe8 Qf4 Ng4 Ne2+ Kc4 Bb2 Nf2 Bf6 Qe6 Be7 Rb8 Rg1 h1R Qa7 Bd6 c7 Rh3 c8B Bc7 Bb7 Nh1 Ba8 Rb5 Bdc6 Rb4 Nbc3 Rb6 Rc1 a1B Nb5+ Bc3 Ra1 B3e5 Rg3 Bb8 Qa5 Bec7 e5+ Nd4 Qa6 Kb3 Rg1 Nc2 Qc4+ Kb2 Rg4 Ne3 Rd4 Nf1 Rd8 Rc3 Na3 Rbb3 Rb1+ Ka2 Rb2+ Ka1 Qaa4 B1c2 Rh8 d1Q Rh7 Nd2 Qa7 Nb1 Qf2 Qd5 Kh6 Qg1 Qh2 Bd1 Rd2 Be4 Rd4 Bd3 Qf2 Qd7 Rd5 Qc8 Rd8 Qe6+ Bf6 Rc1 Nd4 Qh2 Rhh8 Qg1 Kh7 B1e2 Be7 Qg5 Kg8 Rg1 Rh7 Bd1 Qd2 Rg2 Ne2 Rgg3 Qa2+
Bb4r1/4P2Q/4p1pk/B3n1r1/R1PqQn2/r3q3/Q1nN1QPN/Rn1b3K b - - 0 1 illegal: No proof kernel
2rR1Q2/K2BP2Q/Q1p3p1/kN2nn2/2P2BQr/1q1Nn3/br1b1rP1/q5R1 b - - 0 1 legal: proof: e4 e5 h4 Qxh4 a4 b5 axb5 Qh2 d4 f5 dxe5 fxe4 Kd2 Kd8 Ke3 d5 Kd4 h5 b4 a5 f4 a4 f5 e3 b6 a3 b7 c6 f6 Kc7 f7 Kb6 c3 h4 e6 h3 b5 g6 e7 e2 Be3 e1R Bc1 a2 Qg4 Qg3 Bd3 h2 Na3 Rh4 Nh3 Rf1 Nf4 Nd7 b8Q+ Ka5 b6 Bh6 f8Q Ne5 Kc5 d4 b7 Be6 Nb5 Rf2 Bf5 d3 Rg1 d2 Nd3 d1N Bf4 Ne3 Rad1 h1R Qbc8 a1Q b8Q Qf3 Qbb7 Ba2 c4 R1h3 Qce8 Rc8 Bd7 Bg5 Qef7 Nh6 Rd2 Nhf5 Q7g8 Qfd1 Qh7 Qb3 Rdd1 Rb2 Rd2 Rf3 Rdd1 Ka4 Kb6 Rff2 Ka7 Ka5 Nc5 Rd8 Rd5 Rc8 Nd3 Rb8 Be6 Bh6 Rd8 Rc8 Bd7 Nf1 Bg3 Bd2 Bf4 N1e3 Qa6#
2NQ1B1q/3PpPbB/RnnpQ3/2n3Bb/1r6/1Pk1B1R1/1q2N3/1r2rn1K b - - 0 1 illegal: No proof kernel
3Kb2q/n1rpB3/1bP3B1/3N1rp1/P1Qb1B2/k2rRnQ1/2R1N2P/r4q1B b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 Kd2 e5 Kd3 Ke7 Ke4 g5 Kd5 b5 f4 b3 a4 g3 c4 e4 c6 g2 c7 b4 c5 e3 Nd2 e2 Ra2 e1Q Nb1 b2 Bb5 b3 Qd4 Nh6 Qf2 Bb7+ Bc6 Ra5 c8B Ng4 Qf3 Rh3 Nc3 b1R Re2+ Ne5 f6+ Kf7 f5 b2 Qd3 Ra1 Rc2 Bg7 Kd6 Qh8 Be4 Bd5 Kc7 Nbc6 Bb7 Na7 Qc4 Rd3 Be3 Kf8 f7 Ke7 f6+ Ke6 f8Q Qc1 Nh3 g1B f7 Bf2 Rg1 Qd1 Rg3 Qf1 Bc1 Bf6 Bg6 Bd8+ Kb8 Bd4 Ng1 Rb5 Qh6 Ke7 Bf4 Be4 Bh7 Bg6 Qh4 Ra5 Bg2 Bh5 c6 Kd6 Bh1 b1R+ Rb2 Rd5 Re3 Rc5 Qg3 Rd5 Qa6 Kc5 Nge2 Nf3 Kb7 Rf5 f8B+ Be7 Kc7 Be8 Rc2 Kb4 Qc4+ Ka3 Nd5 Bec5 Kd8 Rb7 Bg6 Rc7 Nb4 Bb6 B8d6 Nc8 Be7 Na7 Nd5+
2KRNb2/BRP1rrBb/1qr3nP/3PBB2/Qp4q1/1Q3p1n/r3N3/qk6 b - - 0 1 illegal: No possible last move
N3q3/KRp1nP2/1pP1q3/N2P3B/1NbbQb2/2r2n1B/R1N2qk1/4Qr1b b - - 0 1 legal: proof: b4 g5 h4 gxh4 e4 f5 exf5 a5 bxa5 d6 f6 Nh6 f7+ Kd7 Bb2 Ng8 Be5 dxe5 Ke2 Kc6 f4 Kd5 Kd3 h5 c4+ Kd6 g4 e6 a4 h3 g5 h2 a6 h4 c5+ Kd5 a5 h3 f5 Qe7 c6 Rh4 g6 Nd7 f6 Rf4 g7 Qe8 a7 Bd6 f8Q Ne7 g8B e4+ Kc3 e3 d4 Ke4 Kc4 e2 Kb5 e1B d5 e5 a6 Rf5 Ne2 Kf3 Bf7 e4 Na3 e3 Nc3+ e2 Na2 Bf4 Nc2 Bf2 Qe1 Bd4 Nab4 Ne5 Ra2 Rb8 Rg1 h1B a8N h2 Nb6 Ra8 Nc4 b6 a7 Bb7 Na5 Ba6+ Ka4 Bc4 Rg8 Bc5 Bg6 Bd4 f7 Rf6 Bh3 Rf5 Qa1 e1Q Bh5+ Kf2 Qh6 Nf3 Qh7 Qe6 Qb1 Rf6 Qe4 Rf5 B3g4 Kg2 Qbe1 Q8d7 Rh8 Rg8 a8N Qe8 Qc1 Rf6 Qce1 Rg7 Bf5 Rg3 Rg8 Q8d7 Rb8 Qe8 Bfg4 Rg6 Q4e3 Ng1 Nb7 Rf6 Nd6 Bfe5 Rb7 Rf1 Qb1 Bf4 Qe4+ Kf2 Ra7 Rc3 Bh3 Nf3 Nb7 Bg2 Qbe1+ Kg1 Na5 h1Q Rb7 Qh2 Qa1 Bh1 Qae1 Bb3+ Kb5 Qf2 Ka6 Bc4+ Ka7 Kh2 B3g4 Kg2 Bh3+
2Qr3N/1Kppr1N1/1R1qN1Pq/1B3R2/1rnP1nrb/1N6/bP1q4/2k3BQ b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 Na6 h4 gxh4 a3 Nb4 Ke2 Nc2 Nh3 Nxa3 Ng1 Nc2 Kf3 Kf7 Ke4 Kf6 Kd5 Kg5 g4 Kf4 d4+ Ne3+ Kc5 h5 f3 a5 g5 h3 f6 h2 b6 e5+ Kb5 e4 b7 a4 b8N a3 f7 a2 g6 h4 Qd3 h3 Qe2 Rh4 Qf2 Qe7 Nc6 Bb7 Qg2 Rd8 Nd2 Nf6 Nb3 Qd6 Ne7 Bd5 Nf5 Nh5 Ng7 Be7 f8N Rg4 Ka5 Bf6 Bb5 Bh4 Bd2 Bf7 Rc1 Be6 Rc6 Bf7 Ka6 a1R+ Kb7 Ra4 Bc1 Rb4 Rb6 Bg8 Bd2 Be6 Be1 Nc4 Bf2 e3 Qf1 e2 Be3+ Kg3 f4 e1Q f5 Qd2 f6 Nf4 Nf3 Bf7 Qd1 Bg8 Rf1 h1R f7 h2 Rf2 Re1 Nfe6 h1Q f8Q Re2 Rf1 Re1 Bg1 Re5 Nec5 Re7 Qb1 Qh3 Ne5 Be6 Nf7 Qhh2 Re1 Kf3 Rf1+ Ke2 Nh8 Qh3 Qe4+ Qhe3 Rf2+ Kd1 Qh1 Bg8 Nce6 Qh3 Na5 Kc1 Qe8 Bg5 Rf3 Qh6 Qf8 Bh4 Rf2 Ne2 Rf5 Nf4 Nb3+ Kb1 Rc5 Na3 Ng5 Rc8 Nc1 Ba2 Nb3 Nc4 Rf5 Ra8 N5e6 Rc8 Qf7 Rf8 Qe8 Rg8 Qa8 Rd8 Qc8 Kc2 Na1+ Kc1 Nb3+
3bK3/1P2R1b1/1pk5/1r1n1Qq1/N1pQ1PrN/1bn5/1BP2Bnq/RQ1Q2b1 b - - 0 1 illegal: No proof kernel
n5Q1/1PpR1r1R/5r2/1b1rQ1pK/qbPN1N1Q/1q2P1Q1/kn3Bbr/4B3 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 b4 Ke7 f4 Ke6 Kf2 d5 Kg3 g5 h4 a5 h5 a4 h6 a3 e3 d4 h7 Kd5 f5 Kc4 c3 d3 f6 d2 f7 a2 b6 Na6 e6 Nf6 b7 Qd5 b8Q Bd7 e7 Bb5 e8Q Nc5 Nf3 Ra6 Qe5 Nfd7 Qe1 d1B Nd4 Nb6 Bd2 Nd3 Qbe8 Be7 Qg8 Na8 f8B Bf3 Rh5 Bc5 Bd6 Nb2 Qf2 Qf7 Be1 g1R+ Qg2 Rf1 Rh3 Ba4 b5 Bb4 b6 Bb5 b7 Qe6 Qg1 Bg2 Rh6 Rf7 Bf2 Ba3 Bb4 Rd6 Qh2 Rd5 Ba5 Qb6 Rd6 Bb4 Rd7 Qg6 Qg1 Qc2 Qh2 Qb3 Qh3 Kd3 c4 Rf6 Nc3 Rf7 Nf3 Kc2 Rh1 a1Q Ne2 Qaa4 Nf4 Rf6 Rh2 Kb1 Nd4 Ka2 Qh4 Bc5 Bae1 Bb4 Qge6 Rhf8 h8Q R8f7 Q6d6 Qc2 Bg1 Qc3 Qg8 Qcb3 Kf2 g3+ Ke2 Bh3 Kf3 g2 Bgf2 g1R Rh1 Bg2+ Kg4 Rf1 Kh5 Rg1 Rh3 Rh1 Qde6 Bc6 Qg3 Qa6 Kg4 Bb5 Rh7 Qaa4 Q6f5 Bh3+ Kh5 Rh2 Qfg4 Bg2+ Q4h4
1q1bq1R1/1pQ5/1kN1B2p/R3q1b1/2n1P3/n1Br2QP/N3NbP1/1r3NbK b - - 0 1 illegal: No proof kernel
n7/Rp3KQ1/3N2PP/PpRr2r1/kB1rq3/3B1bBq/r1BQ2N1/5qbn b - - 0 1 illegal: No proof kernel
6k1/P3n1p1/K3Q3/b4RBp/1PBP2b1/B4qbn/nrB1QrN1/nRq2N2 b - - 0 1 illegal: No proof kernel
3nB3/P1K2P1R/kRpQ2b1/q4nq1/Q3PB1B/rrb1r1N1/2p2B2/2N1bb2 b - - 0 1 illegal: No possible last move, all moves rejected
1nK3Q1/r1b4n/2bpBQq1/7r/RP1B1PP1/n3RQnk/QN2p2n/5Nn1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 e5 f4 a5 b4 h5+ Kh3 a4 c4 a3 b6 a2 c5 d3 g3 e4 c6 d2 c7 e3 b7 e2 Qb3 d1N Qd3 Bd6 Na3 Qe8 Nc4 Ne3 Qc2 Ra7 Nb2 Ng4 Qd2 Nh2 Nf3 Qg6 Qc3+ Be5 Be3 Rh6 Nd2 Rh7 Rb1 a1N Bd4 Nc2 Qf3 Na3 Rc1 Rh6 Rc3 Rh8 Re3 Rh7 Kg2 h3+ Kf2 h4 Rg1 Na6 b8Q Bb7 c8Q Rh5 Qc4 Bc6 Qc8 Nb8 Qa2 Nh6 Qcg8 Nf7 Bg2 Ng5 Ra1 Nh7 Nf1 Bd5 Bb6 Bc7 Bh1 d6 Bc5 Be4 Bd4+ Ke7 f6+ Kd7 f7 Bc6 Rb3 Ke6 Ke3 Kf5 f8Q+ Nf6 Qf2 Kg4 Bd5 Nh7 Qg2 Nf3 Rc3 h2 Qf6 Ng1 Qf3+ Kh3 Bb3 h1N g4+ Ng3 Be6 Rc5 Kd2 Rh5 Re3 Rb7 Kc3 Ra7 Nd2 Kh2 Kb3 h3 Kc3 Nf1 Kb3 Nb5 Kc4 Na3+ Kc3 Rh6 Qad5 Nc2 Ra4 Na3 Qa2 Rh5 Bf5 Be8 Kd3 Bd7 Ke4 Bb5 Kd5 Bc6+ Ke6 Qh6 Qfd5 Qg6 Nf3+ Kg3 Qe4 h2 Nd2+ Nf3 Ke7 h1N Be6 Nh2 Nf1+ Kh3 Qed5 Ng3 Qe4 Bb5 Qed5 Ng1 Qf3 Nc6+ Kd7 Nb8+ Kc8 Be8 Bf7 Bc6 Be6
QB6/3N2k1/1BK1RpnR/3p2PP/2n2q1n/3BB2P/4brrb/2rnNQr1 b - - 0 1 illegal: No proof kernel
3bb1R1/n1b2b2/1pQ5/Q1BNnrnP/6QN/1p2q2P/1nBP3k/2K1Q1Rr b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 a4 Ke7 a5 Kd6 a6 Ke5 a7 c5 d6 f5 d7 g5 Nh3 c4 Qc2 f3 Kd1 f4 Qg6 c3 Nf2 b3 Nh3 b6 Rg1 g4 Qg7+ Nf6 Rg2 g3 Na3 f2 Nb1 f3 Qg6 Nh7 Nf4 Qg5 d8Q Be7 Ba3 c2+ Kc1 Nc6 Qf7 Be6 Qg6 Bf7 Qdg8 Bd8 Rg1 g2 Nd5 Qe3 Nf4 Ng5 Rh1 g1B Ng2 Rh7 Nh4 Kf4 Bh3 f1N Bf5 f2 Bc5 Rc8 a8Q Na7 Nc3 Rc7 Kb2 c1N Qgc6 Nd3+ Kb1 Nb2 h3 Kg3 Kc1 Nh2 Nd5 f1B Bc2 Nf3 Qg7 Bf2 Rg1+ Kh2 Qd4 Rc8 Qg4 Bg3 Ra4 Ne5 Rc4 Qf2 e4 Qe3 Ra4 Bb5 Rb4 Nec4 e5 Rh6 e6 Ne5 e7 Rf6 e8Q Rf5 Qg6 Bd7 Qgc6 Bf4 Qe7 Bde8 Rc4 Ng6 Re4 Bfc7 Re6 Ne5 Rg6 Nb5 Qa5 Ra8 Qc3 Ra6 Rg8 Na7 Qcb4 Ra4 Qa5 Raf4 Re1 Rf1 Rd1 Rh1 Re1 Nef3 Qee4 Ne5 Rg1 Qd4 Qe1 Qf4 Bd3 Qe3 Bc2
8/n1n2q1p/P2Rb1pn/bQK1R3/Q1P1B1Q1/2N1NbPr/Qr2bB2/n4k2 b - - 0 1 legal: proof: e4 a5 d4 c5 h4 cxd4 b4 axb4 h5 f5 exf5 g6 h6 Qb6 Ba3 Qf6 Bc1 Qg7 hxg7 Ra6 Bd2 Ra7 Bc1 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 a4 b5+ Kc5 e5+ Kb6 d5 c4 d3 f6 d2 a5 Ke3 f7 Kf2 f5 e4 f6 e3 Bb2 b3 Ne2 d4 Ra2 b4 Na3 d3 Ba1 b2 Nc3 b1N Qh5 e2 Rh2 d1B Rh3 d2 Rc2 e1N Rh4 b3 Qb5 b2 Re4 Nc6 Bd3 Be6 Re5 Bb4 f8Q Nh6 g8Q Be2 f7 d1B Rd2 Kf1 Qe8 Nc2 Be4 Na7 f8Q+ Bf3 Qfc5 Bde2 Qd4 Rd8 a6 Ba5+ Kc5 Rd7 Qe3 Rd3 Qgf7 Rg8 Qf5 Rf8 Qec6 Rb8 Qg4 Rb6 Qef4 Re3 Rd6 Rb7 Na2 Nc3 Qh2 Nd5 Nc3 b1Q Bb2 Na1 Nc2 Nc7 Qa4 Bd5 Qcb5 Be6 Bc1 Rd3 Be3 Qc1 Bf2 Qf4 Qc6 Rb2 Qcb5 Qf7 g3 Rd4 Bc6 Rf4 Be4 Rf5 Qhh4 Rh5 Qhg5 Kg2 Qd2 Rh3 Ne3+ Kh2 Ned1 Kg2 Qdc2 Kf1 Qcb3 Nc6 Qba2 Na7 Ne3+
r2RB3/1nr1Bpr1/P1Pbq3/r1p2NPb/kB5N/8/bQ2QBR1/n2b1K2 b - - 0 1 illegal: No proof kernel
r1r1B1kn/3qp1rn/nR4N1/2PB3b/Q1R1Np1b/3PBB2/P1K5/1n4rQ b - - 0 1 illegal: No proof kernel
1B3k1b/2QP4/b2N1r1N/2r4B/4r2R/pPnrp1P1/1nq1R1n1/1QnRR1K1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 f4 c5 Kf2 h5 d4 e5 f5 a5 g3 a4 d6 e3+ Kg2 c4 b6 e2 f6 e1N+ Kf2 e4 d5 c3 b3 a3 b7 e3+ Ke2 h3 Bd2 h4 Qc2 h2 Qf5 c2 Nf3 h3 Bb4 Na6 b8Q Rh5 Ne5 Ng2 Nc3 Nc5 Ne4 Nd3 Ng4 Ne7 Re1 Ra4 Nh6 Bg7 d7+ Kf8 d6 Ba6 f7 Nd5 Qc7 c1N+ Kf3 Qf6 Be2 Qg6 Ba5 Bh8 d8R+ Kg7 d7 Nc3 f8R Nb2 Nd6 Re4 Bb6 Qh7 Ba7 Qg6 Rhf1 h1R Bb8 h2 Rd1 Rg1 Rfe1 h1R Rde8 R1h4 Rc8 Rd4 Qb1 Rd3 Rf4 Rc5 Rb4 Re4 Rf8 Ree5 Rh4 Re4 Rf5 Qh7 Rfh5 Kf8 Rh2 Nf4 R5h4 Rf1+ Rf2 Nh3 Kg2+ Nf4+ Kh2 Qf5 Bh5 Ng2 Rfe2 Rf2 Rh1 Qg6 Kg1 Rf6 R1h2 Qf5 Ree1 Qf2+ Kh1 Qc2 Kg1 Nf4 Rf2 Ng2 Rfe2
4nB2/npR3pP/r1b2kr1/B2RrB1r/B1QKQ1PN/b7/2P2n2/1Nqn4 b - - 0 1 legal: proof: e4 a5 b4 axb4 d4 c5 dxc5 h5 Qg4 f5 exf5 h4 Qh3 Ra5 g4 Ra8 Qg3 hxg3 Ke2 Kf7 Ke3 e5 f4 d5 h4 g2 a4 e4 c6 b3 c7 b2 a5 Bb4 f6 Bd6 f5 Bg3 a6 Rh6 h5 Rg6 h6 Bd6 h7 Nc6 a7 Bd7 c8B Ba3 Nf3 g1N Bd2 Nh3 Ba5 Nf2 Nh4 Qe8 Bb5 d4+ Kd2 d3 Ke3 d2 Rd1 Qe6 Ba4 Qc4 Re1 Qf1 Re2 Qc1 Re1 Nb4 Kd4 d1N Re3 Bb5 Rc3 e3 Rc7+ Bd7 Ra2 e2 Ra1 e1R Ra2 Rb8 a8Q Re5 Qa6 Ra8 Qb5 Ra6 Qc4+ Nd5 Ra1 Ne7 Ra2 Bc6 Be6+ Kf8 f7 Nc8 Bd7 Ke7 f8B+ Kf7 f6 Na7 Bf5+ Re7 Nd2 b1R Rb2 Ra1 Rb5 Ra2 Rc5 Rb2 Nb1 Rb5 Bd7 Re5 Bf5+ Ke8 f7+ Kd8 Nc3 Nf6 Nb1 Ne8 Rd5+ Bd7 Bd6 Bc6 f8Q Rc5 Bd7 Rh5 Qf5 Rb5 Bdb4 Rc5 Qf3 Ke7 Bf5+ Kf6 Qe4 Rb5 Bf8 Rc5 Rdd7 Re5 Rd5
B1k1NrQ1/pb1q1rn1/n4R2/n1QrP1Q1/Q1Pb1B2/2NP4/4rpK1/5n1R b - - 0 1 illegal: No proof kernel
K3nQn1/3Bp2p/P3N2P/B1qnr1B1/n3RQ1q/1k1PnbB1/1R3N1b/3q4 b - - 0 1 legal: proof: c4 b5 f4 a5 e4 f5 g4 Nc6 g5 Nb8 b4 d5 cxd5 fxe4 f5 axb4 Nf3 Ra6 Ng1 Rf6 gxf6 Be6 Qb3 Bd7 Qd1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 c5+ Ke3 g5 a4 g4 h4 g3 h5 g2 d3 b3 h6 b2 a5 c4 Kd4 e3 f7 e2 a6 e1N f6 b4 Rh4 c3 Ra5 c2 Qd2 b3 Nf3 g1Q+ Qe3 Ng2 Re4 Bg4 Rf4 Bg7 f8B Nd7 Nbd2 b1N Rb5 b2 Ng5 Nc3 Re4 b1N Ne6 Bf3 Rb2 Na4 Qf2 Ne3 Bh3 Nbc3 Bf5 Ne5 f7 Qd1 Bh3 Bf6 Bg7 Qb8 f8Q N5c4+ Re5 Bh4 Re4 Bg3 Bf5 Bh2 Be5+ Kd7 d6 Kc6 d7 Qb4 d8B Kb5 Bb6 Ncd5 Bg3 Nd6+ Ke5 Ne8 Ba5 Bh5 Qf4 Bf3 Ng7 Kc5 Ke6 Qd4 Kd7 Qf6 Kc8 Qh4 Ra2 Kb5 Kb8 Kc5 Ne6+ Kb5 Ba3 c1Q Ka8 Qc5 Bc1 Ngf6 Qc7 Rg8 Qf4 Rg5 Bh3 Ng8 Rb2+ Qb3 Nb1 Re5 Nc3+ Kc6 Nd1 Kb5 Bb4 Qbc2 Nf2 Qd1 Bcd2 Nac3 Bf5 Ka4 Ba5+ Ka3 Ng5 Na4 Bd7 Qb5 Ne6 Qc5 Q4f6 Nc2 Bg5 Nce3 Re2 Kb3 Qf4 Qh3 Rc2 Qh4 Rb2+
4nQ1N/Q1Pn3b/2bBP1BK/5r1p/R2Rp1QN/b1n1P3/qk2Q1n1/3q2n1 b - - 0 1 legal: proof: f4 c5 h4 a5 d4 cxd4 a4 b5 axb5 e5 h5 e4 h6 gxh6 Bd2 h5 Be3 h4 Bc1 Ra6 Nh3 Re6 Ng1 Re5 fxe5 Bd6 Qd2 Bc5 Qd1 Bf8 Kf2 Ke7 c4 Ke6 b4 f5 g4 h5 c5 Kd5 b6 Kc4 b7 d5 c6 f4 c7 a4 g5 a3 b5 a2 g6 d3 b6 f3 Ke3 d4+ Kf4 f2 g7 d2 Ba3 d3 Bd6 h3 Qe1 Kb3 Nf3 d1B Nc3 h2 Nb5 d2 Bc5 Bf5 e6 Kb2 Bh3 f1N Bd6 Ba4 Nh4 Nf6 Kg5 d1N g8Q Bh7 Bf5 Nfe3 Bg6 Nbd7 b8Q Nc3 b7 Ng2 e3 Be7 Qf8 Ne8+ Kh6 Rg8 Qg7 Rf8 Qa7 Rf5 b8Q Bf8 Rd1 a1Q Rd4 Qa2 Rg1 h1N Qe2+ Kb3 Rf1 Nf2 Ra1 Nh3 Qc8 Be7 Qf8 Ng1 Qca6 Qb1 Qg4 Kb2 Ra3 Bd1 Raa4 Qa2 Bg3 Bc5 Nd6 Ba3 Nf7 Bb3 Qf1 Bd5 Nh8 Bc6 Bh2 Qb8 Qfd1 Qbb3 Bd6 Qc2 Qf1 Qd1 Qfe2+
2K3R1/1P2Qn1n/N2r2b1/kn1Nb3/nR5B/BB1Bp2p/b3PP2/nQ1q1q2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 h4 b5 a4 a5 axb5 g5 Bg2 f5 Bh3 Ra6 Bf1 Rg6 Nd2 fxg4 Nb1 g3 Bf4 g4 Bc1 Rg5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 h5 Kd3 d5 b4 Kd7 c4 Kc7 g6 Kb6 g7 e5 Na3 h4 Bg2 e4+ Kc2 h3 Kb3 d3 Ka4 d4 Bf3 d2 Nb1 e3 Be4 g2 Ba3 g3 Bd3 Rh6 Nf3 g1N Ng5 g2 Ne4 Nf3 Nc5 g1Q Na6 Be6 Nc3 Nf6 g8B Bd6 Rb1 Qf1 Rg1 Ne5 Rb2 Rg6 Qb1 d1N Rb3 Nf7 c5+ Kb7 c6+ Kb6 c7 Nc6 c8Q Be5 Rg2 Nh7 Qd7 Na7 Qe7 Qd7 Rb2 Ba2 Rg1 Rd6 Rg3 Nh8 Bb3 Nf7 Rg8 Qd8 Be4 d3 Bg6 d2 Bd3 Qd7 Nd5+ Kb7 Qe8 Qd8 b6 Nb5 Qe7+ Kc6 b7 Qd7 Nf6 Kb6 b8B Nc7+ b5 Qd8 Bb4 Nc3+ Ka3 d1B Nd5+ Kb7 b6 a4 Bc5 Bc2 Kb4 a3 Ka5 Na4 Bb4 Kc6 b7 Nb5+ Bc7 Qe8 Bd8 Qd7 Bdc4 Bg6 Bd3 Bf6 Qe8 Be5 Bh4 Qd1 Qf8 Qg4 Qe7 Qg2 Nc5 Qgf1 Ka6 Nd4 Ka7 Nb5+ Kb8 Bf5 Nf6 Kb6 Na6 Bg6 Bc5+ Ka5 Kc8 Qfe1 Nd5 Qf1 Qc2 Bb1 Qc1 a2 Ba3 a1N Qc2 Ba2 Qb1 Bf6 Rc2 Bd4 Rc4 Be5 Rb4
1K3Q1k/1Qpbpq2/1RP1Nr2/Pb2q3/n2q2QB/P5Qr/1qqbB3/3N1R2 b - - 0 1 illegal: No possible last move, all moves rejected
8/1P1pqQr1/KPb3Rq/R1qP1bNb/4Nnpb/7B/n2B3Q/1BB1k1b1 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 a4 h5 g4 hxg4 b6 Qg5 b5 Ra6 b7 Rah6 b6 Rh5 Bh3 Qd8 Bf1 Rb5 axb5 a4 h4 Ke7 e4 Ke6 Ke2 Ke5 Kd3 c5 Kc4 g5 h5 f5 h6 f3 h7 Kf4 d4+ Kg3 e5 Kf2 d5 a3 e6 f4 e7 a2 e8B g3 Bh5 g2 Ne2 g1B Bf7 Be7 Bd2 Na6 b8B Nb4 Qc2 Bb7 Be5 Bc6 b7 Nf6 b6 Nh5 Bb8 Rg8 h8Q Rg7 Bc1 Ke1 Be6 f2 Bb2 f3 Qg6 Nf4 Bfh3 f1B Bg8 f2 Qf7 g4 Bh7 Bh4 Bg6 Qe7 Bc1 Bg2 Be3 Be4 Ng3 Bf5 Bh7 Bg6 Ne4 Bh5 Ng5 f1B+ Bd3 Be2 Nc3+ Bd1 Bb1 Bc2 Bc1 Bcg6 Nce4 Bf5 Kb3 c4+ Ka3 Ng2 Bbf4 c3 Bfe3 c2 Qb8 Qc5 Qh2 Nf4 Kb3 Qe7 Kc4 Qd8 Kc5 Qe8 Kd6 Qe7+ Kc7 Qc5 Kb8 Qe7 Ka7 Qc5 Bb2 c1Q Ba3 Qe7 Bb2 Qcc5 Ba3 Nbd3 Ka6 Nc1 Bb2 Nce2 Ba3 Nc3 Bac1 Qf6 Nh7 Qce7 Bg2 Bg5 Bf1 Bhg6 Qb2 Qfe6 Rh5 Bh4 Rg5 Bh5 Bh3 Qh6 Rg6 Bg3 Nhg5 B3f2 Bc2 Bh4 Rb1 a1Q+ Qa2 Ne6 Rb5 Nf4 Bb1 Qb2 Rc5 Qa3+ Ra5 Qac5 Qh2 Na2 Bed2+
2QbKR2/1Np2R1b/P1Q1p3/1BPn3R/b7/BqbR1nq1/6P1/N1q1r1kb b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 e4 dxe4 b4 Ra6 f5 Rg6 fxg6 axb4 Rh3 b6 Rh1 b5 Kf2 Kd7 Ke3 Ke6 Kf4 Kd5 c4+ Kd4 a4 f5 g7 h5 c5 e6 g6 e3 d3 e2 a5 e1B a6 h4 Ra3 h3 Qb3 h2 Ra1 Ne7 Kg5 f4 Kf6 f3 Kf7 f2 g8R Qd6 g7 Nbc6 Be2 f1Q+ Ke8 Ne5 Bb2+ Ke3 d4+ Kf2 Qd5 b3 Nf3 b4 Ba3 b2 Nh4 b3 Nd2 b1Q Nf5 b2 Nb3 Bc3 Qb7 Rh4 d5 Re4 Ra2 Qc2 Na1 b1B Rh8 Qb2 g8R Qe1 Rh5 Qb3 Rd2 Qc1 Re1 Bg7 Rf8 h1B Red1 Bf6 Bf1+ Kg1 Rf2 Qdb6 d6 Qc6+ d7 Qd6 d8Q Nd5 Qd7 Re1 Qbb5 Bb7 Qc8 Bd8 Bc4 Be4 Rd3 Ba8 Rf4 Nf3 Qa4 Qe5 Nd6 Bh7 R4f7 Qg3 Qad7 Bc6 Nb7 Bb5 Qc6 Ba4 Bb5
BN3r1R/1P2b3/1Nn1kn2/1p1q3Q/q1p2qQK/4PRnN/1rP2B1q/2N1q3 b - - 0 1 illegal: No possible last move, all moves rejected
R5Q1/2R2nq1/1nr1NbQP/1p1qq1R1/1K4p1/R7/PP1r2B1/rN1rBk1r b - - 0 1 illegal: No proof kernel
q2q4/RbN5/N1rP2kN/KnR1bP1r/2r1b2p/4p2Q/BB1NP1Q1/2q4b b - - 0 1 illegal: No possible last move, all moves rejected
1kR1qRbn/8/rNQ1q1Bp/5b1q/b2P1r2/2p4P/1bP3KN/1BQ1B1Br b - - 1 2 legal: proof: e4 g5 a4 b5 axb5 d5 Ra5 dxe4 Ra6 Bh6 Ra1 Bf8 b4 a5 f4 gxf4 Ke2 a4 Kf2 Nc6 Ke1 Na5 bxa5 Qd6 Qh5 Qd7 Qd1 Qd8 Kf2 Kd7 g4 c5 d4 Kc7 b6+ Kb8 g5 f5 a6 e5 b7 c4 h3 e3+ Kg2 f3+ Kh2 a3 g6 f4 g7 a2 Bd2 c3 Qe1 h6 Qg3 f2 Qf3 e2 Bg2 e1Q Qe2 f1B Qc4 f3 Na3 f2 Qb3 e4 Qb2 e3 Nc4 e2 Nb6 Qh4 Nf3 Qh5 Qc1 Ne7 g8B Ng6 Bh7 Ba3 a7+ Kc7 Rg1 Bf5 b8B+ Kb7 Bbf4 Rhf8 Bfe3 Nh8 Bg6 Bb2 Bh1 Bg2 Rf1 Kc7 Rb1 a1R Kg3 Rf7 Nh2 Bc6 Bd5 Ba4 Ba2 Rf6 Kg2 Raf8 Nd7 Ra6 a8Q Rff6 Nb6 Rf7 Qc6+ Kb8 Rh1 f1B+ Kg1 Qeh4 Be1 Qd8 Kf2 Bg2 Rf1 Bd5 Kg3 Qf8 Bg1 Qe8 Rf3 Rf6 Kg2 Bg8 Rf4 Ba3 Rb5 Bb2 Bb1 Rf7 Rc5 Rf8 Bh4 e1Q Bhf2 Q1e6 Be1 Bg4 Rf3 Rf4 Rf2 Re4 Rf8 Rf4 Qf3 Bf5 Rc7 Qd8 Qd5 Qde8 Qc6 Qg5+ Bg3 Rg4 Bf2 Qed8 Ba2 Qef6 Qe3 Rh1 Bg1 Qe6 Qc1 Rf4 Bb1 Qh5 Be1 Qde8 Rc8+
2r3n1/2R5/1pNqn2q/PP2pRr1/2RQq2b/PK2Bnkq/B1Qr4/4NR2 b - - 0 1 illegal: No proof kernel
1BN5/1N5n/Pp1nqqQ1/pRN2Q1B/3r1b2/Prq1n3/rP3NR1/1k2n2K b - - 1 2 illegal: No proof kernel
4kQbq/rn2p1nB/NK4PQ/1n4Np/4Rq1P/2b1PQ1n/7b/q3RQ1B b - - 1 2 legal: proof: f4 b5 a4 c5 axb5 a5 g4 Qb6 d4 cxd4 g5 Qd8 g6 Ra7 Be3 Rc7 Bf2 Rc6 Bh4 Rc5 Bf6 Rg5 fxg5 gxf6 Kf2 d5 h4 Kd7 c4 h5 b4 f5 c5 f4 e3 f5 b6 f3 b7 a4 g7 a3 b5 d3 g6 f4 b6 d4 Qa4+ Nc6 b8Q a2 b7 d2 Qb3 d1N+ Ke1 f2+ Kd2 d3 Qa8 f3 b8Q Nf6 g8B Ne8 Na3 Bg7 Qf4 Na5 Be2 f1Q Qbc4 f2 Nh3 Be5 Bh7 Nc3 Bf3 Nb5 Nc2 Ng7 Qh6 Bh2 Ng5 Rf8 Rd1 a1B Nb4 Rh8 Qae4 Nb7 Na6 Qg1 Rb1 f1Q Rb4 Qg3 Bg2 Qgf4 Qf3 Be5 Ra4 Qa1 Re1 Qg8 c6+ Kd8 Rf1 Be6 c7+ Kd7 Qc1 Qc8 Bh1 Bc3+ Kd1 d2 Kc2 d1N Re4 Qd8 Qb1 Nf2 c8Q+ Kd6 Qe1 Nh3 Kd3 Bf7 Qa8 Kd7 Qef2 Bd5 Re1 Rf8 Qf1 Rf6 Nb4 Qh8 Qb8 Bg8 Qf8 Re6 Kc4 Ra6+ Qf7 Na5+ Kc5 Ra7 Na6 Nb7+ Kb6 Kd8 Qf5 Ke8 Qf8+
K3k3/p3rQR1/r5r1/P1r1PNr1/PBR2pqn/3N1R1n/B2r1b2/2R1nQ2 b - - 0 1 legal: proof: h4 e5 a4 d5 c4 g5 cxd5 gxh4 f4 exf4 a5 Bd7 b3 Ba4 bxa4 Ke7 Ra2 Kd7 Ra1 Ke8 Kf2 h5 Kf3 b5 Ke4 c5 g4 f5+ Ke5 f3 d4 f4 e4 b4 g5 b3 g6 b2 d6 c4 Kd5 c3 e5 h3 g7 h2 Na3 b1R Nc2 f2 Qf3 h4 Qg2 h3 Qf3 Qd7 Ba3 Rd1 Be2 f1R Qf2 Nh6 g8R Nc6 Ne3 c2 Nf5 c1R Rg7 Rd2 Bb4 Rh7 Nf3 Rg1 Bc4 Rg6 Rf1 h1R Ne1 h2 Ba2 Be7 Qg1 Bh4 Rf3 Bf2 Qf1 Rcc2 Rc1 Rc5+ Ke4 Qc8 d5 Nd4 Nd3 Rb8 Rc4 Rb6 Rc1 Rhg1 d7+ Kd8 Rc4 h1N Rc1 Ra6 Rc4 Kc7 d8R+ Qd7 Rb8 Nc2 d6+ Kc6 Re8 Ne1 Rc1 Qe6 d7 R1g5 d8Q Qg8 Qe7 Qe6 Ng3 Nf5 Qf7 Nh4 Nf5 Qd7 Re6+ Kc7 Rc6+ Kd8 Nh6 Qg4 Nf5 Bg1 Rc7 Nf2+ Kd4 Nh3+ Ke4 Rcc2 Kd5 Bf2 Rc4 Bg3 Qf6+ Ke8 Kc5 Bf2+ Kb5 Bb6 Kc6 Bf2+ Kb7 Rc3 Ka8 Rcc2 Re4 Rcc6 Rec4 Rc5 Rc7 Re7 Rb7 Ree6 Rg7 Re7 Qf7+
4q1QQ/1kBNRr2/N1n1nNPn/5R1n/p1Nb2p1/1BP2r2/5rPr/1Kn5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 d4 cxd4 h5 exf4 Bd2 Bb7 Be3 Be4 Bc1 Bg6 hxg6 Be7 Nd2 Bd6 Nb1 Bf8 Kd2 d5 e4 Kd7 b4 Kc8 e5 h5 e6 f5 b6 a5 e7 h4 e8Q f3 b5 g4 c3 d3 Qde2 f4 Ra3 h3 Ra4 f2 Bb2 d4 Kc1 h2 Q8e6+ Kb7 Q6e4+ Nc6 Ba1 d2+ Kc2 d1N Qe5 f3 Bb2 Bg7 Ba3 Qe8 Qc4 Ra7 Nh3 Nb2 Bd6 Nd3 Bc7 Nf4 Ng5 Ne6 Nd2 d3+ Kb1 Nh6 Nh7 Bf6 Be2 f1R+ Bd1 Rf2 Rf1 h1N Bb3 Ng3 Rb4 Bg7 Nf6 a4 Qcd5 Ne2 Re4 Nc1 Nc4 d2 Re3 d1R Qh5 Nd4 Re7 Rd3 Qg8 Ne6 Qh2 Nf7 Qe5 Rh2 Qh5 Re3 Qhh8 Rd3 Rd1 Re3 Rd5 Nh6 Rf5 Rd3 Nd7 Bd4 Nf6 Ka8 Bb8 Rd7 Bc7 Re3 b7+ Ka7 b8N Kb7 Rg7 Rf7 b6 Rfe2 Re5 f2 Rf5 f1N Na6 Ng3 Rh7 Nh5 Rg7 Ka8 b7+ Ka7 b8N Kb7 Rh7 Rf2 Nbd7 Ref3 Rg7 Rf8 Re7 Rf7 Bb8 Neg7 Bg3 Ne6 Bc7
4q1r1/p3b3/2BP2N1/1KnB1Q2/1RP2B2/rN4pn/q1nqk1Pq/RBQ4n b - - 0 1 illegal: No proof kernel
Q1Nb3K/qBRRp2R/1nn2N2/1b5b/1np1Pk1q/2RP2B1/1Qb4P/r4n2 b - - 0 1 legal: proof: f4 d5 g4 h5 b4 g5 c4 a5 cxd5 axb4 Nc3 b5 Nb1 Ra6 Bb2 Rg6 Ba3 hxg4 Bc1 g3 Na3 g4 Nb1 Rg5 fxg5 Bb7 Qb3 Ba6 Qd1 Bc8 a4 Kd7 e4 Kd6 Ke2 Ke5 Ke3 f5 a5 c5 g6 b3 a6 g2 a7 g3 a8R b4 g7 f4+ Kf3 b2 d6 b3 d7 Nf6 g8Q Na6 Bb5 Nb4 Bc6 Bg7 Nc3 b1B Bb5 b2 Qe2 Bd3 R1a7 b1B Ba6 Bbc2 Nb5 Nfd5 Kg4 f3 Kg5 f2 Kg6 f1N Nh3 g1Q Nf4 g2 Nd6 Bb5 d3 c4 Rc7 Qa7 Bb7 g1N Nh5 Nb6 Nf6 Nf3 Bd2 Qf8 d8R Nd4 Be1 Kf4 Rdd7 Ndc6 Qd5 Rg8 Kh7 Bh6 Rb8 Rg1 Bf2 Qf7+ Kh8 Qh5 Ra8 Qh4 Qg8 Bca4 Qb2 Bc2 Be1 Ng3 Bf2 Ra1 Rc1 Nf1 Be1 Bb1 Rc3 Bc2 Rd8 Bd7 Nc8 Bg4 Rdd7 Bh5 Rb8 Ke3 Bg3 Bf4 Nd6 Kf3 Rf8 Bd2 Rf7 Bf4 Qa8 Bd2 Be1 Kf4 Bg3+ Ke3 Rd8 N4d5 Rcc8 Na4 Rb3 Ba5 Rd7 Ndb4 Rc3 Bd8 Rh7 Nb6 Rcc7 Kf3 Nc8 Ke3 Bf2+ Kf4 Bg3+
1N6/r2qnRp1/3kB1b1/1nrb1PbQ/Pp2P3/p2N3Q/4N1KB/3nrNR1 b - - 0 1 illegal: No proof kernel
B1Q1r2b/1p2k1pN/1qbN1RnR/N6n/b1P1pPK1/8/2rnPQ2/N1Br4 b - - 0 1 illegal: Other
Q3B2q/3qnbr1/K1br3r/1p1BbR1N/3k1Np1/PP3p1P/2Q1N3/2n1N2R b - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 Bb2 a3 Bh3 axb2 Bg2 Ra3 Bf1 Ra8 d4 Kd7 Kd2 Kd6 Kc3 b5 Kb4 g5 e4 f5 a3 g4 h6 f3 h7 f4 h3 f2 Qd3 Bd7 Nc3 b1B Nf3 Ra6 Qc2 Bg7 Ne1 Bc6 Bg2 f1R Ne2 Ne7 Bf3 Rg8 h8N Nd7 Ng6 Ne5 Bg2 Rb6 Ka5 Nd3 Bf3 Nc1 e5+ Kd7 d6 Ke6 Be4 Qd7 Bg2 Bh8 Bf3 Rg7 d5+ Kf7 e6+ Kf6 Be4 f3 Ngf4 Ke5 Nh5 Bb7 Ra2 c5 Ra1 c4 Ra2 Qe8 d7 c3 d8N Qd7 d6 Bc6 Bd5 Rg1 Qd1 Be4 Rd2 Bg6 Qc2 Bf7 Rd4 Rf1 Rf4 Rg1 Ng2 Rd1 Ne1 Ng6 e7 Rd3 e8B Ne7 Qd1 c2 Ne6 Rd4 Rf6 Rd2 N6f4 Rd3 Nc3 Kd4 Rf5 Ne2 Neg2 c1Q Ne1 Qb2 Qb1 Nc1 Qc2 Rb7 Ka6 Rh7 Ng3 Be5 Ngh5 Rh6 Nce2+ Ke3 Nhg3 Qc8 d7 Bg6 d8Q Ng8 Qb6+ Bd4 Bdf7 Re7+ Qb7 Qd7 Qc8 Bg7 Nfh5 Rd6 Bc4 Qe5 Nef4 Kd4 Qb7 Rf7 Nf6 Ne7 Be6 Bh8 Qa8 Rfh7 N4d5 Bf7 Nfh5 Qg7 Ndf4 Qf8 Nf1 Be5 Bd5 Qh8 Nfg3 Rg7 Nge2+
1B3nk1/1qr1QNB1/3KR1pN/pp2QP2/rr2Q2b/5Pn1/P7/Qq1bR2n b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 Be2 f5 gxf5 Be6 Bf3 Bc8 Bg4 hxg4 Ke2 Kf7 Ke3 a5 Kf4 b5 Ke5 e6 c4 g3 h4 g2 d4 g6 f3 e3 c6 e2 h5 e1N d5 Bb7 c7 Nh6 c8Q Qh4 c5 Kg8 c6 Nc2 d6 Ra7 c7 Be4 d7 Nd4 d8Q Ne2 Nh3 g1Q Nf2 Bc2 Nd2 Ng3 Qb7 Qe7 c8Q Ba4 Qe4 Rc7 Qde1 Bd1 Nc4 Qf1 Ng4 Nd7+ Kf4 Qd3 Nd6 Qb1 Qb8 Rh7 Nf7 e5+ Ke3 Rh8 Qc3 Rh7 Re1 Rc4 Ba3 Ra4 Bd6 Rb4 Qdc7 Ra4 Qbb7 Bg7 Q7c5 Bf6 Bb8 Nf8 Qbc7 Qd7 Qe7 Bh4 Qcd6 Qb7 Qdd5 Qc2 Rb1 Rg7 Qa1 Qb2 Rc1 Qb1 Rc6 Rb4 Re6 Rh7 Qed3 e4 Kf4 e3+ Ke5 e2 Kd6 Ra4 Qde5 Rg7 Nh2 Ng4 h6 Nf2 Qde4 Nfh1 Ng4 Nd7 Rg1 e1R Rf1 Re3 Re1 Re2 Q7f6 Rb2 h7+ Kf8 h8B Kg8 Qe7 Rbb4 Nd8 Rf7 Bg7 Nf8 Qd7 Re7 Nf7 Rb2 Qe8 Rc7 Qe7 Rbb4 Ngh6+
k2KNR2/2B2Rr1/4p1P1/1n5n/NQ3qnP/p3P2N/1b2rB1p/QNq3qb b - - 0 1 illegal: No proof kernel
k1n3NK/1Q1r2N1/2p3qb/1Nq2PPq/1Qb4R/1pPn1N1p/B3b3/rR4B1 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 gxh4 b4 f5 exf5 e5 dxe5 axb4 Kd2 h5 Kd3 b5 Kd4 d5 g4 Kd7 a4 Kc6 f4 Kb7 c3 b3 a5 b2 g5 c6 f6 h3 e6 b4 Ke5 d4 e7 d3 e8N h4 f7 h2 Na3 b1Q Qb3 d2 Ng7 d1B Nb5 Ne7 Kf6 Be6 Nf3 Qb6 Be3 Bc4 Bg1 Na6 Bg2 Qc2 Rb1 Nc5 a6+ Kb8 Qa3 Nc8 a7+ Kb7 Bh3 Nd3 Be6 Qc5 Kg6 Rg8 Kh7 Be2 Bd5 Rb8 Qb3 Ka8 Qa4 Rb7 f5 Rd7 Be6 Qd2 Bd5 Qde3 Qb3 Qe6 Qb2 Bd6 f8N Qf6 Ng6 Bf8 Ne7 Qfd6 Ne8 Bh6 Ng7 Rgd8 Ng8 Qg6+ Kh8 Rf8 Be4 b3 Qa3 Nc1 Bc2 Nd3 Qb4 Rfd8 Rf1 Re8 Bb1 Re4 Ba2 Rg4 Be3 Rg1 Rb1 Re1 Rf1 h1Q Bg1 h3 Rf2 Rd1 Rg2 Qh2 Rg4 Qhd6 Rf4 Qh5 Rh4 Qdg6 Rb2 Ra1 Rb1 Kb7 a8Q+ Kb6 Qaa4 Kb7 Qa6+ Kb8 Qb6+ Ka8 Qb7+
N2B3B/k1rQ1pp1/q1q3qP/bbb5/5R2/2p1RPBr/B1nN1K1P/1Q3n2 b - - 0 1 illegal: No proof kernel
1bQ1Q3/nb2PN2/2k1q3/n1PppR2/4PB2/K1p2rBb/3Bq3/1N1q1BRr b - - 0 1 illegal: No possible last move, all moves rejected
2Q5/n3PP2/kRbNp1R1/1Rpq1rNP/4B3/Knr2rb1/1pQ5/1qR1n1B1 b - - 0 1 illegal: No proof kernel
5qn1/4p2r/RBQb4/1Nr1PPb1/B1RP2q1/4pBpb/1K1Qn1Nk/2B1q3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 gxh5 f5 cxd5 Na6 e5 Nb8 Qc2 Kd7 Qc4 Ke8 Qe4 fxe4 Kd1 Kd7 Kc2 b5 h4 g5 f4 c5 a4 g4 d3 g3 h6 c4 d6 Ke6 h7 Kf5 d7 Kg4 h5 c3 h6 e3 a5 Nc6 Na3 b3+ Kb1 b2 a6 b4 a7 Rb8 a8B Rb5 Nh3 Rc5 Nb5 Nd4 Ra6 Ne2 d4 c2+ Ka2 Qe8 d8B b3+ Ka3 b1Q Bb6 b2 Bf3+ Kh4 B1g2 Bg4 f5 Qg6 Nf4+ Bh3 Bc6 Qg4 Bgf3 Bg7 Rd1 Bf6 Rd3 Bg5 Rc3 Qa1+ Kb3 Qa5 Rc4 Qe1 Ka2 b1Q+ Ka3 Bf1 Ng2+ Kh3 Be8 Qbb4+ Ka2 Kh2 Bd7 Qbd2 Kb2 Qd3 Bdc6 Qde4 Be8 Qa8 Bec6 Qf8 Be8 Nf6 Bd7 Rg8 h8Q Rg7 h7 Ng8 Bdc6 Rf7 Qf6 Rg7 h8Q+ Rh7 Nf4 Bh3 Ng2 Qf4 Nd6 Qe4 Ba4 Qg4 Nb5 Qf2 Bd2 Qe1 Qc6 c1B+ Kb3 Ba3 Bc1 Rd5 Ka2 Bd6 Kb2 Nf6 Qg8 Rc5 Qgd5 Ng8 Qe4 Qc8 Qc2 Qf8 Qd2
n4QBK/RRrPB1NQ/p3qP2/2nNq1b1/P1p5/Rrq5/p6n/1b1Rk3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 f5 exf5 gxh4 a4 b4 Qb3 Bh6 Qa2 Bf8 Qa3 bxa3 Ke2 Kd7 Kd3 Kd6 Kd4 e5+ Ke4 Kc5 f4 Kb4 g4 c5 d4 h5 g5 a6 f6 h3 g6 h4 f7 h2 d6 h3 g7 Qd7 f5 Be7 f8Q Rh7 d5 Nh6 g8Q Bg5 f6 Qe6 d7 Ng4 d8R Rc7 d6 Nd7 Ne2 Nb6 Ng3 Rb8 Nh5 Na8 Nc3 c4 Nd5+ Kb3 Qh7 Kc2 b4 Kd1 b5 Ke1 b6 a2 d7 Bb7 Ng7 Bc6 Rg1 h1N Rg3 h2 Bg2 Rbb7 Ra3 Nhf2+ Kf3 Nd3 Ke4 Rb8 b7 h1Q Bf3 Qh2 Re8 Qg8 Kf5 e4 Kg6 e3 Bh1 e2 Be3+ Nc1 Bc5 Qe5 Be7 Nh2 Bf3 Qge6 Bh5 Rbc8 b8R Rd8 Rb7 Rb8 Ra7 Rb3 Rb8 Qc3 Rbb7 Qee5 Nf4 Be4+ Kf7 Bf5 Kg8 Bb1 Bf7 Nd3 Nd5 Nc5 Be6 Kf1 Kh8 e1Q Bg8 Qe6 Qh5 Q1e5 Qh7 Ke2 Bf7 Bc2 Rf1 Bb1 Rd1 Kf2 Bg8 Ke2 Rd2+ Ke1 Rd1+
5bq1/1nPk2NP/1N3Kp1/2q2Pp1/b2Q1bB1/1r3n2/2nNRp2/BQ1Nr1R1 b - - 0 1 illegal: No proof kernel
2n2B2/N1PN1p2/1qb5/1b3p2/NNr1r2r/1R1qQRn1/kP3PKp/n1Q2B2 b - - 0 1 illegal: No proof kernel
2q2RK1/Brp2r1p/1BQP4/1B3p1R/1b1q2n1/b1B3N1/Q1Pn2P1/qNk2r2 b - - 0 1 legal: proof: f4 d5 a4 g5 e4 dxe4 h3 b5 axb5 Bg4 hxg4 gxf4 Ke2 Kd7 b4 Kd6 d4 Kd5 b6 Kc4 b7 f5 g5 a5 d5 e5 b5 e3 Kf3+ e2 g6 a4 g7 e4+ Kf2 a3 b6 a2 Bb2 e3+ Kf3 Ra7 Qc1 Nc6 b8B Nh6 g8Q Ng4 b7 Na5 Qd2 Nb3 Rh5 Ba3 Bc3 Qc8 Qf7 Re8 d6+ Re6 Qe8 Re7 Qc1 Rf7 Qb2 Ra8 Ba7 Rb8 Be5 Kb4 Qc6 e1B Bb5 e2 Bb6 Bc3 Bed4 e1Q Ne2 Qg1 Ng3 Be1 Bh8 Qd4 Bf6 Ra8 b8B Ra7 Bg7 Rb7 B8a7 Bd2 Nc3 Be1 Rb1 a1Q Qa2 Bd2 Re1 Qb2 Re5 Qa1 Re8 Be1 Nb1 Bc3 Rf8 Nd2+ Ke2 f3+ Ke1 f2+ Ke2 Ne4 Kf3 Be1 Kf4 Nd2+ Kg5 f1R Qe6 Nc4 Nd2 Kc3 Nb1+ Kb2 Be5 Nd2 Qa2+ Kc1 Bh8 Ne3 Kh6 Nb3 Be5 Beb4 Bg7 Nd2 Be5 Rf6+ Kg7 Rf7+ Kg8 Ng4 Bf6 Qe4 Bc3 Qe5 Rh6 Qd4 Rh5
bB1K4/2pPnQ1N/B1p2P2/4b3/qQ1nP1nB/1RrNp2r/4b1B1/R5qk b - - 0 1 illegal: No proof kernel
nKR3k1/BPrp4/3b1B2/4prq1/n1p1rRNR/3PN3/q1b1PQRQ/4q3 b - - 0 1 legal: proof: f4 h5 a4 g5 fxg5 b5 axb5 Nh6 g6 Ng8 g4 Na6 g5 Nb4 Bh3 Nxc2+ Kf1 Ba6 Be6 Bc8 Bg4 hxg4 Kg2 e5 h4 a5 b4 f5 d3 c5 b6 a4 h5 g3 Kf3 g2 g7 Kf7 g6+ Ke7 h6 c4 b5 a3 b7 a2 b8B f4 Ke4 f3 Kd5 f2 b6 f1Q h7 Qe1 Nf3 g1R Nh2 Ra7 Na3 Ba6 Ng4 Rf1 Rh4 Nd4 Nc2 Bb5 Nce3 Rc7 b7 Ba4 Ba7 Bc2 Bd2 Rf3 Ba5 Ne6 Qb1 Rf7 Qb6 Nc5 Qf6+ Ke8 Qf2 Ne7+ Kd6 Rf5 g8R Na4 g7 Kf7 Rc1 a1Q B5b6 Qg1 Rf1 Qa8 Ba5 Qe1 B5b6 Rc8 Bd8 Rc7 Qh2 Qg2 Rf4 Qgg3 Qf2 Nc8+ Kd5 Ba3 Re8 Rf8 g8R Bd6 h8Q Qgg1 Rh1 Qg3 Qhh2 Qh4 Rg5 Rg8 Rg6 Rg7 Rh8 Qg5 Rh4 Kg8 Rg1 Bf8 Rc6 Bd6 Rg2 Rgf7 Rf3 Rf4 Rc5 Re4 Rf4 Rf5 Rc6 Ba3 Rc5 Ncb6+ Kd6 Bb4 Nd1 Rc8 Nde3 Nc3 Bb8 Qa2 Ba7 Nca4 Be7 Rcf8 Kc7 R8f6 Kb8 Rc6 Bd8 Na8 Ra5 Ba3 Ra6 Rc5 Rc6 Bb4 Rc8 Rc7 Qf3 Bc5 Qf2 Bd6 Bf6+
N2B4/p1R3R1/3K1Pnb/1BP4P/1pb1Qr2/n3n2r/qp1Q2Qb/N1k1q1Q1 b - - 0 1 illegal: No proof kernel
3q4/N2n2N1/4K1bQ/1r1Rp1Q1/bQ1R3Q/pP1k1B1P/1bb1pP2/1rB1bn2 b - - 0 1 illegal: No possible last move, all moves rejected
B1K5/1B1npk2/q3n1B1/1P1N4/3brBR1/1pp1R1PQ/1PN3nn/1Qrn2b1 b - - 0 1 illegal: No proof kernel
1n2Bqn1/2p5/2Qb1rnQ/1R5p/1n1rBpkP/4P2R/P2bBN2/K2NB1n1 b - - 0 1 illegal: No possible last move
r1bB2QQ/p1Kn4/1B2BnpP/1B1q1n1n/1R1pb1PP/4N2k/5n2/r3R2N b - - 0 1 illegal: No proof kernel
1Q1bR2r/B2B4/b3RP1P/p1K2p2/b3p1N1/n3Qk1B/3r1P1B/2N1qnrb b - - 0 1 legal: proof: e4 b5 d4 f5 a4 h5 axb5 c5 g4 cxd4 e5 hxg4 Bh6 Qb6 Bc1 Qf6 exf6 Ba6 Bh6 Bb7 Bc1 Bc8 Ke2 Kf7 Kd3 Kg6 Kc4 Kh5 h4 g5 b4 e5 c3 d5+ Kd3 a5 c4 Be7 c5 Na6 b6 Nh6 b5 Nb4+ Kd2 d3 Kc3 d2 c6 d4+ Kc4 d3 b7 Bd8 b8B Ba6 c7 Nc2 c8B Na3+ Kc5 e4 b6 Ra7 Nc3 Rd7 Qb3 d1B b7 d2 Nge2 g3 Ba7 Kg4 b8Q g2 h5 g1R Bh3+ Kf3 Rb1 Ng4 Nd5+ Ne3 h6 Rd6 Bd7 g4 Rh2 g3 Rg2 Bc2 Bb2 d1B Nc1 Bde2 Be5 Bed1 Qd3 Ba4 Rb6 Be2 Qd2 Nf1 Ne3 Bed1 Qe1 Rd2 Ng4 Bde2 Rh2 g2 Re6 Rh1 Bg3 g1Q Rg2 Nh2 Qd1 Qe1 Bc7 Nf1 Bh2 Rg1 Qdb3+ Rd3 Ne3 Rd2 Rg8 Ng3 Qd3 Bf1 Qdb3 Bg2 Rge8 Bh1 Qd3 Nf1 Ng4+ Ne3 Qd4 Nf1 Qe3+
n2RK3/2r1b2N/2NbrpP1/1pB1NR2/n3P1bB/qPk5/2p2n1Q/2Q1N2n b - - 0 1 illegal: No extended proof kernel
2Q5/1Nr2Qrb/3BP3/1n2pN1B/2Pq1R1r/b1RPk2Q/bpb2pn1/5Q1K b - - 0 1 illegal: No proof kernel
1n3R2/k3KB2/nN1Pb1bp/2bR3r/1Pnp2b1/2r4P/1RQ1pRqN/B1Q5 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 f4 gxf4 exd5 c5 d4 cxd4 Ke2 Kd7 Kd3 Kc7 Kc4 Kb6 g4 f5 b4 e5 c3 a5 h3 f3 g5 a4 g6 e4 g7 e3 Nd2 f4 Rh2 a3 Qc2 a2 Bb2 f2 Ngf3 Ra3 Rb1 Nh6 g8R a1N Rg5 Bc5 d6 Nf5 Kd5 Ka7 c4 Nb3 Ba1 Qg8+ Ke5 Bd7 Kf6 Be6 Be2 f1B Rf2 Bg2 Nh2 Be4 Bh5 f3 Rb2 e2 Qc1 Ne3 Rd5 Qg2 Bf7 Bg6 Ke7 Bg4 Rf1 f2 b6+ Ka8 b7+ Ka7 Re1 f1B Qc2 Bb6 c5 Nc4 c6 Nc5 c7 Nca6 c8Q Bc5 Qc1 Rg3 Qf5 Rc3 Qfc2 Qf2 Rd1 Bg2 Rf1 Qg3 Rf4 B2e4 Rf2 Qg2 Re5 Bef5 Rd5 Nd7 b8R Be6 Re8 Ndb8 Rf8 h6 Ndf3 Rg8 Ne5 Rg7 Rh8 Rg8 Nd7 Rc8 Nb6 Rf8 Be8 Rf5 Bf7 Rh5 Rf8
1k1Kb3/1B1N4/P1p5/1pq2r1p/r1Nbn2P/Q1N1BR2/r4rnP/1n2QNR1 b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 e5 b4 axb4 g3 Qh4 gxh4 exf4 Kf2 Kd7 Kf3 b5 Ke4 g5 Kf5 h5 a4 b3 d4 f3 e4 g4 e5 b2 d6 f6 a5 f2 d5 g3 Nc3 b1N Nge2 g2 Ra3 g1Q Qe1 Bg7 Be3 Nc6 Ng3 Nd8 Bg2 Ne6 Nf1 Nf4 e6+ Kd8 Be4 Ng2 d7 Bb7 Kg6 f5 Kf7 f4 Rb3 f3 Ra3 Nf4 Rb3 Qg5 Rg1 Bd4 Ra3 Nf6 Rb3 Ng2 a6 Rg8 Bf5 c6 e7+ Kc7 e8N+ Kb8 Ke7 Bc8 d8Q Ne4+ Nf6 Rf8 Qa5 Bd7 d6 Be8 Bh3 Qc5 Bc8 Rg8 Kd8 Rg4 d7 Rf4 Ng3 f1R Bb7 Rf2 Qa3 Ra2 Nf1 f2 Ng4 Qc4 Ne5 Qc5 Nc4 Qf8 Rb2 Ka7+ Kc7 Rf5 d8N Bc5 Nb6 Rb8 Ng3 f1R Ne6 Rd8 Rf2 Rd4 Rf3 Rff2 Nf1 Ra4 Nc4 Bd4 Kd8 Qc5 Nf8 Kb8 Nd7+
3r2bK/2nr1p2/p2P3Q/1NQQNrR1/BP1B4/RQ1r3P/2pqn3/bk5n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 Ke5 d3 Kd4 e5 g5 e6 c5 e7 g3+ Kf3 c4 e8Q c3 b6 g2 d6 c2 d7 Bg7 Kg4 f3 Kf5 g4 b7 g3 h3 f2 Bh6 Nf6 Qf3 Na6 b8Q Nh5 Ra3 Nc7 Qf8 a6 Nc3 Ra7 Qb5 Rg8 Be2 f1R Qa5 Be5 Bg7 Rf2 Bf6 Bb7 Qg7 Be4+ Kg5 Rf1 Kh6 Bh7 Qfd5+ Ke3 d4 Kd2 Bb5 Kc1 Nf3 g1N Qb3 g2 d5 Ng3 Ba4 N1e2 Rg1 Nh1 Nb5 Ba1 Bd4 Re8 Ne5 Bg8 Qg6 Qg5+ Kg7 Qd2 d6 Rd8 Qh6 Rb7 Kh8 Rd1 Rf1 g1R Rf5 Rgf1 Rg5 Rf4 Qb6 Rf5 Qc5 Ra7 Qbc3 Kb1 Q3c4 Rda8 d8Q Rb7 Qd7 Rd8 Qde6 Na8 Bf2 Qc3 Rh5 Rd3 Qed5 Rbd7 Rg5 Nc7 Bd4 Qd2 Qb3+
Q5b1/4P2p/4N3/PQ1n2br/p2P1NBk/bn2QQ1p/3R2n1/2nKRrBq b - - 0 1 illegal: No proof kernel
3Nbb2/2p2r1n/2Bk1BpP/QR1qRp2/2P1r1nr/1Q5N/KPb2r2/R5R1 b - - 0 1 legal: proof: f4 b5 d4 e5 a4 g6 g4 h6 g5 hxg5 dxe5 gxf4 axb5 Bg7 Kd2 Bh6 Ke1 Bf8 Kd2 Ke7 Kc3 d5 Kb3 a5 h4 f5 e4 a4+ Ka2 f3 c4 a3 b6 f2 b7 d4 h5 d3 e6 d2 e5 Qd3 h6 Nd7 b8R Ra5 Bg2 f1R Qb3 d1B Nh3 Qd5 Bg5+ Ndf6 Rb5 Bc2 Nd2 Rh7 Nf3 Bd7 Nd4 Rf2 Rhg1 Rf7 Bh4 Be8 Bf3 Kd8 e7+ Kd7 e6+ Kd6 Nc6 Nh7 Nd8 Ngf6 Bg5 Ng4 Bf6 Qd2 Bc6 Qd1 Rb6 Re5 Rb4 Qd5 Rb5 Bd7 e8Q Re4 Bb7 Bc6 e7 Bd7 Ne6 Bc6 Qa8 Bd7 Qa5 Be8 Nd8 Bd1 Kb1 a2+ Kc1 Bc2 Ba8 Bd7 e8R Bc6 Re5 Be8 Rb1 a1R Bc6 Ra4 Ra1 Ra3 Qf3 Rd3 Qg3 Rdd4 Qb3 Bd1 Kb1 Bc2+ Ka2 Rd3 Nf4 Rh3 Nd3 Rh1 Nf4 Rh4 Nh3
1B1q4/1P1B1PQr/B2b2p1/4p1Q1/1k2P2b/2p3Nn/1rN3R1/Br1nbrRK b - - 0 1 illegal: No extended proof kernel
b1Qn2r1/1pN1QNQ1/R1P1rr2/3P4/Bp2r1R1/6bn/1pq1k1PB/n3Q2K b - - 0 1 illegal: Other
B5rR/1p4BR/1Prpq2P/rp3bk1/3QR3/1bN2P2/n1bQrRK1/6Nn b - - 0 1 illegal: No proof kernel
2QR4/Q2n1kp1/1N1N3B/2qPqb1P/p2nb3/b1b1QR1r/1Ppr4/1BK4Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 f5 d4 a5 Kd2 c5 e4 g3 e5 f3 e6 a4 e7 c4 b6 f4 b7 c3+ Kc2 f2 d6 f3 d7+ Kf7 Bd3 f1Q Nd2 f2 Ra3 g2 Ne2 g1B Ne4 Nf6 Bh6 Qb6 d8Q Qe1 Kc1 f1B Bb1 c2 Nf4 Qc5 Nd5 Bg2 Rf3 Bf5 Qc8 Nfd7 Nb6 Nc6 b8Q Bh2 Rhf1 Be5 Qa7 Qg3 Re1 Bf6 Re2 Qge5 Qh1 Rb8 Rd2 Rb7 Nd5 Rb3 Nb6 Rd3 Rd1 Rd2 e8Q+ Kg8 d5 Nd4 Rdf1 Rh7 Nd6 Rh8 Rc3 Bge4 Rff3 Rh7 Qg6 Rh8 Qgg1 Rh7 Qe3 Rh8 Nb7 Kf7 Rb3 Qb5 Rc3 Ba3 Rc6 Qc5 Re6 Bd8 Re8 Bc7 Rd8 Rh7 Na8 Ba5 Nb6 Bc3 Bg5 Rh5 Bh6 Rg5 h5 Rg3 Qca8 Rh3 Qc8 Kf6 Nd6 Ke7 Ndc4 Kf7 Nd6+
3B1Nqn/2P1N2r/1n1P3b/4nR2/b1Q4K/QBrpk1pN/1P1q2Rp/2n1N3 b - - 0 1 illegal: No proof kernel
2K1nR1k/b1P5/2p1p2r/BqqpQ3/B1NPqnq1/1N1b4/r2NP3/Q1R2N2 b - - 0 1 illegal: No proof kernel
R1N3bK/1PR1R1r1/rBN1r1p1/1P2prn1/1nk3qQ/Q3b1p1/1P6/1B2q1R1 b - - 0 1 illegal: No proof kernel
Q3q3/pRqbP1pR/r1rBN2p/BQ3r2/P2n4/1n5K/k1PN4/bR2r1R1 b - - 0 1 illegal: No proof kernel
1K1N4/2pqrN2/1b1p2r1/P1P1N2N/qPbB4/1BR1nQ2/1Rp2Q2/1b1kr1q1 b - - 0 1 illegal: No proof kernel
RK1bQ2b/2NQ2R1/5rB1/p1B5/2p2P1Q/2rp2PQ/k1P1n2N/q1q2brq b - - 0 1 legal: proof: d4 e5 g4 exd4 a4 f5 Kd2 fxg4 Ke1 b5 axb5 g3 Ra2 g2 Ra5 Qf6 Ra1 Qd8 Na3 g5 Be3 g4 Nc4 g3 Nd2 Nc6 Bh6 Nce7 Nb1 Nf5 Nf3 g1B Bd2 g2 Bc1 Ng3 hxg3 Bg7 Bd2 Bh6 Bc1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 d5 b6 h5 b3 c5 b7 c4 Rh3 h4 Nc3 d3 Nb5 d2 b8Q d4 Nh2 Qa5 f4 Nh6 Bd3 Bg7+ Kd6 Rf8 e5 Bh8 e6 Rf6 Bg6 Nf5+ Kc6 Qa4 Kc7 a6 e7 d3 e8Q Nd4 Qg4 d1Q Qgd7 Ne2 Be3 Qc1 Ra2 Bb7 Qbc8 Bf2 Ra1 g1R Qcd8 Ra7 Kb8 Bg2 Nc7 Bf1 Bc5+ Kc3 b4 Kb2 b5 a5 Rb1+ Ka2 b6 Ra6 b7 Rab6 Qd8e7 Rb3 Qe7d8 Ra3 Rb6 Rc3 Ra6 Qaa3 Ra8 Qa1 Kc8 Bd4 b8Q Q3c1 Qbb5 Be5 Kb8 Bd6 Q8c8 Be7 Qg4 Bd8 Qbd7 Rf8 Qh5 Rf6 Qa6 Kb2 Nf3 Nd4 Qae6 Ka2 Rh2 h3 Re2 h2 Qeh3 h1Q Re7 Kb1 Rg7 Ne2 Nh2 Ka2 Q5h4
rqBR2bN/2p1Pp2/2Q2R1q/r1QP1q2/1B3P1b/p1R1Nrn1/1b1K1R2/7k b - - 0 1 legal: proof: d4 e5 g4 exd4 a4 b5 axb5 h5 c3 hxg4 Be3 d5 Bd2 d3 Bc1 Nc6 c4 d4 Ra2 Nb4 Ra1 Nd5 cxd5 Rh3 Na3 Rh4 Nb1 Rh8 h4 Ke7 f4 Kf6 e4 g5 b4 a5 b6 d2+ Ke2 a4 b5 d3+ Ke3 a3 b7 g3 b8R g2 h5 g4 e5+ Kf5 e6 g3 e7 Ra5 h6 Nf6 b6 Nh5 h7 Bg7 b7 Bb2 Qa4 Kg4 Rh2 d1R Nf3 g1Q+ Rf2 d2 Qc6 g2 Nc3 Kh3 Ne5 Kh2 Ng6 Kh1 Ba6 Rf1 Nd1 Bf5 Ra2 Qd7 Rd8 Ng3 b8Q Qh2 Qa7 g1B Qac5 Qh6 Bc8 Bb1 Ra1 Qf5 Rd6 Rf8 h8R Bd3 Rf6 Bh2 Ba6 Ra8 Rd8 Bg1 Nh8 Bc2 Nc3 d1Q Bd2 Qb1 Nd1 Bd3 Bb4 Bh2 Rg2 Rf3+ Kd2 Bg1 Bc8 Bgd4 Rfd6 Bf6 Ne3 Bh4 Re6 Qff6 Ra2 Bh7 Rf2 Qff5 Rf6 Bg8 Ra1 Qg1 Rc1 Qf1 Nd1 Qb5 Rc3 Qb8 Ne3
3q4/3bR3/Np1qBprp/1b4nQ/2RB2Q1/PPKnb1PR/q3Rk2/6Nn b - - 0 1 illegal: No proof kernel
bn3NN1/1b3K2/p3QQ1P/R1p1rnq1/QP2QRk1/6B1/Pp3bb1/2nB1b2 b - - 0 1 illegal: No possible last move, all moves rejected
n1R1B3/N2Q2n1/2pBQk1r/2q2NR1/3p1n1B/3P1p1n/PB4P1/nKb3qb b - - 0 1 illegal: No proof kernel
q2q1b2/2Q1Q3/1k2b1Pr/nbpbp1Bb/B1P1P1N1/1r2R2N/p3RK2/5NN1 b - - 1 2 legal: proof: e4 g5 a4 b5 axb5 d5 Ra5 dxe4 Ra6 Bh6 Ra1 Bf8 h4 gxh4 f3 e3 Ra3 Na6 Ra4 Nc5 Ra1 Ne4 fxe4 Bb7 Qe2 Ba6 Qd1 Bc8 d4 Kd7 g4 h5 b4 f5 c3 c5 d5 Kc7 g5 e5 g6 a5 d6+ Kb6 d7 h3 Qc2 a4 Ra2 f4 Qb2 h4 Qe2 a3 Nd2 h2 Qf2 h3 Qh4 e2 Kf2 f3 Qe7 Rh6 Rb2 a2 Rb3 Qc7 d8N Rb8 Nf7 Be6 Ng5 Qd8 Rb2 Rb7 Rc2 Bd5 Rb2 Ka7 b6+ Ka6 b5+ Ka5 Ke3 e1Q+ Be2 f2 Nf1 Rb8 b7 Kb6 Kf3 Qd2 Bd1 Qc2 Bf4 Qa4 Re2 Qa7 Ba4 Qa8 Ng3 f1B Kf2 Bb3 Bc1 Bd5 Re3 Be2 Nf1 Bg4 Bd2 Bd7 c4 B7e6 Qe8 Ne7 Re2 Nc6 Qe7 Na5 Bc1 Rc8 b8N Rc7 Bf4 Rb7 Nd7+ Kc7 Nf6+ Kb6 N1f3 Rb8 Rg1 h1B Ng4 h2 Rg3 Bg2 Ng1 h1B Rge3 Bf3 N5h3 Bhg2 Bg5 Rb7 Nf6 Bh5 Ng4 Bf3 Rb2 Bd1 Rbe2 Ka7 b6+ Ka6 Be8 Ba4 Bd7 Rb8 b7 Bb5 Be8 Kb6 Bc6 Rc8 Be8 Rc7 b8Q+ Rb7 Qbc7+ Ka6 Rb2 Ba4 Qcd7 Rb3 Rbe2 Kb6 Qc8 Bb5 Bd7 Ba6 Ba4 Bb5 Qcc7+
1q6/rpp1N3/bP1Q1RR1/1n1prqP1/3Q3N/n1rP1Rr1/6rB/1kRB1K2 b - - 1 2 legal: proof: e4 f5 exf5 g5 h4 a5 b4 axb4 c3 gxh4 Rh2 b3 Rh3 Bg7 Rh1 Bd4 Bb5 Bc5 Bf1 Bb4 cxb4 Kf8 Na3 Kf7 Nb1 Ke8 a4 Kf7 g4 Kf6 f4 h5 a5 d5 b5 e5 a6 b2 b6 e4 a7 e3 Ra2 e2 Kf2 e1R Be2 h3 Ba6 h4 Na3 b1Q Qb3 h2 Qb2+ Re5 Nc4 h3 Ne3 Nc6 Be2 Na5 Kf1 Ne7 Qd4 Rg8 Rc2 Nc4 Nf3 Nc6 Nh4 Bd7 Rg1 h1R Bd1 h2 d3 Na3 Bd2 Qb8 Bc3 Qb4 Be1 Q4f8 Bg3 Kf7 f6 Ke6 f7 Be8 Qa1 Nd4 Nef5 Bb5 Ne7 Ba6 f5+ Kf6 Qc3 Ndb5 Qd4 Qfc8 f8Q+ Kg5 f6 Qf5+ Bf2 Rg6 f7 Rc6 Kg2 Rc3 Bg3 Kf6 Bf4 Ke6 Rf1 Rg1+ Kf2 h1R g5 Kd6 Qd8+ Ke6 f8R Rg3 Rg8 Rhg1 Rg6+ Qf6 Re1 R1g2+ Kf1 Rc6 Qf8 Rc3 Re3 Kd6 Rf3 Qe6 Qe4 Kc5 Qe3+ Kb4 Qd4+ Kb3 Qd8 Rh3 Bh2 Rhg3 Qd6 Qf7 Rc1+ Kb2 Rc2+ Kb1 Rgf6 Qh8 Rg6 Qf5 Rf6 Re8 a8R Qg8 Rd8 Qh8 Rd7 Ra8 Rd8 Ra7 Rg8 Nc4 Rg7 Qb8 Rgg6 Nca3 Rc1+
NbK5/2np3P/4pp1P/1nRqB2r/1r4Q1/1BkBq3/Bnn1Pn2/1R3Q1N b - - 0 1 illegal: No possible last move
2Q2N2/p2b4/1b2QP2/NqbR2Kn/1p1bRrBp/5r1Q/1P4rP/kQB2q2 b - - 0 2 legal: proof: d4 e5 g4 f5 c3 fxg4 c4 d5 cxd5 exd4 Bf4 b5 Bg5 Na6 Bc1 Nb4 a3 Na2 a4 b4 Bh6 Nc3 Bc1 Nb5 axb5 Qf6 Ra6 Qh4 Ra1 Qd8 Kd2 Kf7 e4 g5 f4 h5 e5 c5 d6 Ke6 d7 Kd5 e6 d3 Ke3 Kc4 b6 g3 b7 g2 b8Q g4 e7 h4 e8Q g3 f5 Qa5 Kf4 Nf6 d8Q Qb5 Qee1 Nh5+ Kg5 Bd7 Qbb6 Rg8+ Qg6 Rc8 Qdd2 Kb3 f6 c4+ Qe5 c3 Ra5 c2 Na3 Ka2 Nf3 g1B Qe3 d2 Bd3 d1R Bf5 g2 Nd4 Bc5 Bg4 Ka1 Qe6 Rd3 Qh3 Rf3 Qde8 Bf2 Re1 g1B Re4 Rc7 Qc8 Rg7 Be3 c1Q Bd2 Qcf1 Bc1 Qa6 Rb5 Bb6 Rd5 Qab5 Nc4 Rc5 Na5 Rc4 Ne2 Bfc5 Nf4 Bge3 Qf5 Bed4 Ne6 Rc2 Qe5 Rg2 Nf8 Re7 Qef5 Re5 Qge8 Rf4 Qe6 Rf3 Re3 Re4 Qh7 Ref4 Qc2 Bc6 Re4 Bd7 Qb1+
qBKQ4/bBp2NR1/k4pQQ/2nPq3/1r1Pqp1r/1qn5/2QN1Pr1/4R3 b - - 0 1 illegal: No proof kernel
bK2R1r1/2NQ4/p2p2q1/R2N2np/kN2Nrr1/P2PqQ2/q4qP1/1B2B1b1 b - - 0 2 legal: proof: f4 e5 h4 exf4 b4 c5 bxc5 g5 c3 gxh4 Qb3 b5 Qd1 Nc6 c4 b4 Qc2 Nd4 Qd1 Nb5 cxb5 Bg7 Nh3 Bh6 Ng1 Bf8 Kf2 h5 Kf3 f5 e4 b3 b6 h3 a3 b2 c6 h2 c7 a6 e5 Nf6 e6 Nh7 e7 Rg8 b7 Rg4 b8N Bb7+ Nc6 d6 c8Q Bg7 Ne2 Bd4 Nbc3 b1Q Ng3 Bg1 Be2 Qa2 Nd5 Rb8 Qc7 Ba8 Bd3 Qc8 Ne4 Qe6 Qa7 Qg6 Ncb4 Rd8 Bb1 Ng5+ Ke2 f3+ Kd3 f2 Kd4 f4 d3 f3 Bd2 Rb8 Be1 Rc8 Qe2 f1R+ Qe3 f2 Qd7+ Kf7 Qe2 Rg8 e8N+ Kf8 Qc6 Kf7 Qf3+ Ke6 Qb5 Qc2 Qb7 Qa2 Nec7+ Kd7 Qc6+ Kc8 Qd7+ Kb7 Bc2 Ka7 Rb1 Kb7 Rb3 Ka7 Bb1 Kb7 Ne3 Kb6 Ned5+ Ka5 Nc6+ Ka4 Rb5 Rh4 Ncb4 Rf4 Bc3 Rc1 Be1 Rc3 Qg7 Rb3 Qd7 f1Q+ Kc4 Bb6 Rg1 Qff2 Rf1 Qe3 Rf2 h1Q Re2 Qf2 Nf6 Qhg1 Nc2 Rf5 Nd2 Qff1 Re7 Ba5 Re8 Qh2 Kd4 Rc3 Nb4 Rc4+ Ke3 Rh4 Nde4 Rg4 Kd4 Rff4 Rb7+ Kb3 Kd5 Bb6 Kc6 Ka4 Nfd5 Bc5 Ne6 Qhg1 Kc7+ Kb3 Rb5 Ka4 Kb8 Bf2 Qc7 Qfe2 Qd7 Qe3 Nec7 Qf1 Qh3 Bg1 Qf3 Qff2 Ra5+
3Rr3/pK1QrQ2/1bpbB3/P2p2b1/3NP1b1/Q2r2k1/2RP2Q1/2qBNn1q b - - 0 2 legal: proof: g4 f5 f4 b5 c4 bxc4 b3 e5 Ba3 h6 Be7 Nc6 Bg5 hxg5 fxe5 f4 Bh3 Nd4 Bf1 Nf5 gxf5 Rh4 Qc2 Rh6 Qd1 Rh8 Kf2 Ke7 Kf3 d6 Ke4 g6 Kd5 g4 Kc6 g3 e4 g2 a4 g5 h4 c3 b4 c2 b5 c1R+ Bc4 g4 f6+ Ke8 f7+ Ke7 e6 Kf6 e7 Ke5 e8B g3 h5 f3 a5 Kf4 b6 f2 b7 f1Q b8Q Bh3 h6 Qh4 h7 Nf6 Qb4 Nh5 Qe2 Rd8 Qa3 Bg4 Nf3 g1B Ra2 g2 Rc2 Kg3 Nd4+ Be3 Kb7 g1B Be6 d5 Ba4 c6 Rh2 Bd6 f8Q Re8 Qf7 Rhg8 h8Q Rg7 Bb3 Bg5 Qh7 Qhh3 Qd7 Rge7 Qf7 B1e3 Rf2 Qhh1 Rf6 Qfg1 Rh6 Rf1 Rh8 Rf3 Rf8 Qc1 Rg8 Rc8 Rd8 Bg1 Nc3 Bf2 Ncb5 Rd3 Nf3 Bb6 Ne1 Ra8 Rf8 Rae8 Nd4 Kh3 Rg8 Ng3 Rf8 Nf1 Rg8 Ra8 Rd8 Rc8 Rb2 Kg3 Bd1 Ra8 Rc2 Qg1 Rh8 Rg8 Rh6 Qh1 Rh8 Rg6 Ra8 Rg8 Rd8 Rge8 Qg2+
bN2n2B/p3nPq1/1b3k2/2Q2P1N/P3bR1n/Q4N1K/1Np1B1rp/1b3Rq1 b - - 0 1 legal: proof: g4 b5 d4 g5 c4 bxc4 Qd3 e5 Qd1 exd4 h3 f5 gxf5 g4 h4 Na6 Qb3 Rb8 Qd1 Rb6 Qc2 Rg6 Qd1 Rg5 hxg5 Be7 Na3 Bc5 Nb1 Bf8 b4 Kf7 f4 d5 Kf2 h5 Kg3 c5 e4 h4+ Kg2 d3 a4 d4 f6 g3 e5 d2 b5 c3 b6 h3+ Kf3 h2 Kg2 c4 b7 d3 b8N c2 f5 c3 Na3 Qd4 Be2 Nc7 Qf1 d1B Bb2 c1Q Nc4 d2 Nf3 Bb7 Qf2 Ba8 Rf1 Bc5 Ra3 Ne7 e6+ Ke8 g6 Rg8 g7 Bb6 Kh3 g2 Ra2 Bc2 f7+ Kd8 Ba1 d1B Nb2 Ne8 Qg1 Qf6 Qc5 Bb1 Ra3 c2 Rc3 Ng6 Rc4 Ne7 Rf4 Qe3 Qa3 Qg1 Qc5 Rf8 g8Q Qg7 Qh8 Rg8 Qh4 Be4 Qhf2 Ba8 Qfe3 Be4 Qea3 Ba8 Ba6 Be2 Bb5 Bd3 Bc4 Bde4 Be2 Qg6 Nc4 Qg5 Bh8 Qg7 Nb2 Nc6 Qa1 Qf6 Nh4 Ng7 Nc4 Qh1 Bd1 Qd4 Qaa3 g1N+ Kg4 Qf6 Nb2 Nf3 Kh3 Qg1 e7+ Kc8 Ng2 Nh4 Ne1 Kc7 Na6+ Kd7 Nf3 Bd5 e8N Qc3 Nd6 Ke7 Qcb4 Ne8 Nb8 Rg2 Qc5 Qg7 Be2 Kf6 Nd4 Ke5 Ne4 Ne7 Ng3 Kf6 Nf3 Be4 Nh5+
2N4N/nBP2q1p/8/k4bbQ/q1bq1p1R/BB2p1Br/KbPR1Q1P/3n4 b - - 0 1 legal: proof: e4 c5 f4 d5 d4 a5 a3 g5 Bd2 gxf4 Bc1 b5 dxc5 d4 a4 bxa4 Ke2 Ra6 Kf2 Rd6 Ke1 Rd5 exd5 Bg7 Na3 Bh6 Nb1 Bf8 b4 f3 Kd2 Kd7 g4 Kc7 c6 Kb6 d6 f5 b5 e5 c7 f4 g5 a3 g6 f2 g7 e4 d7 d3 Kc3 a4 Nd2 a2 Kb2 Qe7 d8B Nc6 Qh5 Nf6 g8B Bh6 Bg2 f1B Ngf3 Nd5 Nh4 Nc3 Rg1 Bf5 Ng6 a3+ Kb3 Qf8 Bh4 Bg5 Bb2 Be2 Rad1 a1Q Bf7 a2 Nc4+ Ka7 b6+ Ka6 b7 d2 Be6 Qf7 b8Q Rd8 Nb6 Ka5 Nc8 Na7 Nh8 Rd3 Bh1 Bf1 Rg4 Rh3 Bg3 e3 Qb7 Ba6 Rh4 Be2 Qg2 Bf1 Rc1 d1Q Qf2 Qd4 Bb7 Bb5 Re1 Nd1 Ka3 Bbd3 Bb3 Bc4 Re2 Qc1 Qg2 a1B Qf2 Qcd2 Ka2 Qb4 Ba3 Bb2 Rd2 Qb5 Bg2 Qa4 Bb7
5k2/1N1bp1PR/1R1bqq2/1B1nQP1K/1bp2Q2/B2n3Q/p3PQr1/qq4N1 b - - 0 1 legal: proof: g4 d5 h4 b5 a4 f5 axb5 fxg4 c4 dxc4 Nf3 g5 Ra3 a5 Ra2 g3 Ng1 g4 Ra1 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Qd6 Ra4 Qd5 Ra1 Qd8 d4 c5 b4 h5 f4 c3 f5 a4 d5 h4 g6 g2 Kf2 c2 d6 a3 b6 a2 b5 c4 b7 h3 Kg3 h2 b6 Nf6 Qd5 Nbd7 b8Q Bh6 Kh4 g3 b7 Kf8 Nc3 Ne5 d7 Qb6 Ne4 Qe6 Rb1 Nd3 Qc5 Nd5 Ba3 c1B Qf4 Bd2 b8Q Bb4 Qcf2 Rh7 Qfe5 Bf4+ Kg4 Rh5 Nd6 Rg5+ Kh4 Qf6 Nb7 Rg4+ Kh5 Qe6 Nf3 g1Q Bg2 Qf6 Rb3 Qa1 Ng1 Qe6 Be4 g2 Qbc7 Bg3 Qef4 Qaf6 d8Q+ Kg7 Qce5 Bd7 Qdc7 Kf8 Q4e3 Bf4 Qh3 Bg3 Qa1 Bgd6 Qe5 Bc3 Rb6 Bcb4 Nf3 g1Q Qf4 Qg2 Ng1 Qf1 Qcc5 Qe1 Qcd4 Qb1 Qde5 Ne3 Bc6 Nd5 Bb5 Rg2 Nf3 Qc2 Re1 h1Q Ng1 Qb3 Rc1 Qb1 Rc3 Nb2 Rg3 Qa1 Rg4 Qb1 Rh4 Nd3 Kh6 Rh2 Nf3 Qa1 Rh5 Qhb1 Ng1 Qh8+ Kg5 Qg7 Rh7 Rg2+ Kh5 Qgf6 g7+
B2Q1R2/Br4Rb/6Rn/1p1Qb1np/b2n2kP/2K1pN2/1PR1PN2/n5nr b - - 0 3 legal: proof: g4 f5 c4 d5 cxd5 fxg4 Bg2 c6 Bf1 c5 a4 b5 d4 cxd4 a5 Qb6 axb6 Ba6 Nf3 Bb7 Ng1 Bc8 Kd2 Kd7 f4 a5 h3 e5 b7 g5 d6 Ke6 d7 Kf5 d8R a4 Nc3 a3 Qb3 d3 Rd5 a2 Rc5 g3 Rd5 g2 Rc5 g4 Rd5 g3 Na4 Bd6 Nf3 g1N Nc3 g2 Ne4 Nc6 b8Q Nd4 Nf2 Nh6 Rc5 Ra7 Kc3 d2 Qd5 d1B Be3 Rb7 Qc7 Be6 Qd8 Bg8 Rc1 a1N Rc2 Bc7 Rc6 Bb8 Rg6 Bc7 Nh2 Ngf3 Rg1 Ng5 Nf3 Bb8 Rc1 Ba4 Rc2 Ndb3 Ba7 Nd4 Q5d6 e4 Qd5+ Be5 h4 e3 Nd3 Kg4 f5 Re7 f6 Rb7 Rh1 g1N f7 Nhf5 f8R h5 Rg7 Nh6 Bg2 Bh7 Nf2+ Kg3 Re8 Rf8 Rh2 Rf4 Bh1 Rg4 Rg2+ Kf4 Rh8 Rg3 Re8 Rh3 Rg3 Kf5 Bg2 Rh1 Rf8+ Ngf7 R3g6 Kf4 Re8 Ng5 Rf8+ Kg3 Nd2 Rf7 Q5d6 Rd7 Ba8 Rf7 Nf3 Rb7 Ne4+ Kh3 Qd5 Kg4 Nf2+
1b1R2nN/1NB2pr1/BP3P2/Qn3n2/3Q2nn/1K1pr1nP/R4pBq/5B1k b - - 0 1 illegal: No possible last move, all moves rejected
R1Qn4/3pNn1K/pp1P1P2/2r3N1/b3PB2/q1kn1B2/rn1RBQn1/1B5n b - - 0 1 illegal: No proof kernel
1N2K3/1n2p2N/1Qprb1P1/1Bp1bR1N/1B1b2nn/4Pk2/Q1P3n1/1rR2Nn1 b - - 0 2 legal: proof: h4 b5 g4 g5 a4 f5 axb5 d6 d3 Qd7 Qd2 Qc6 Qb4 Qa6 Qc5 dxc5 Bd2 Qh6 Bf4 fxg4 Bc1 g3 Nd2 g4 Nb1 Qg5 hxg5 Bd7 Be3 Be6 Bc1 Bc8 Kd2 Kf7 Kc3 Ke6 Kc4 Ke5 b4 a5 f4+ Kf5 Kd5 h5 e3 g2 d4 a4 b6 a3 b5 g3 b7 Kg4 b6 a2 g6 h4 f5 h3 f6 h2 f7 Bg7 f8N Ra6 Nh7 Nh6 Ba3 Nf5 Nh3 g1N Bb5 g2 Bb4 Nf3 Nd2 g1N Nf4 N3h4 Nf1 Kf3 Nh5 Nc6 b8N Na5 b7 Ng2 Rc1 Rf6 Ke5 c6 d5 Nfh4 d6 Be6 d7 Rc8 d8Q a1B+ Qd4 Rd8 Qb2 Rd1 Nd7 Bh8 b8Q Nb7 Qc7 Rd6 Nb8 Bg7 Re1 Rd1 Qb6 Rb1 Rd1 Nh3 Rg1 h1N Re1 N1f2 Rc1 Ne1 Rg5 Neg2 Ba4 Ng1 Bb5 Rf4+ N5f6 Rd4 Qa2 Bh3 Rh5 Ng4+ Ke6 Rd6+ Kf7 Be5 Rg5 Bd4 Nh5 Bge5 Kf8 Nh2 Kf7 Be6+ Ke8 Ng4 Rf5+
2b1r2r/R1bpN2b/1R1bPB1q/8/P1pR2Br/2P3p1/k2N2K1/Q1Qr1nR1 b - - 0 1 illegal: No possible last move
3nn2q/QRn1R3/2RrBpnr/7k/4Q1N1/1rpP1P1p/2PNqRn1/2K3B1 b - - 0 1 legal: proof: e4 d5 b4 dxe4 g4 a5 g5 axb4 g6 Be6 Qe2 Bd7 Qd1 Bc8 h4 f6 Ba6 Be6 Ba3 Kd7 Bb2 Bf7 gxf7 g5 Bc1 g4 Bd3 Bh6 Bf1 Bg5 hxg5 Qc8 Nf3 Qe8 Ng1 Qd8 f8Q Ke6 a4 Kf5 g6 Kg5 f3 e5 d3+ e3 a5 b5 a6 c5 a7 h5 g7 e4 Qe2 g3 Kd1 b3 Ra4 h4 Rd4 b2 Qd6 c4 Qe1 b4 Qf4+ Kh5 Qf2 c3 Bg2 e2+ Ke1 b3 Qc7 Ne7 g8R Nbc6 Qb6 Nd5 Bg5 Nc7 Bf4 Ne8 Bd2 Rh6 Bh3 g2 Na3 b1N Qb4 b2 Nc4 Na3 Rd7 Nb5 Rb7 Nbc7 Rg7 b1R+ Bc1 Qc8 Rh2 Nd8 Nd2 Rb3 Be6 Rb8 Nh3 g1N Qe7 Rb6 Qe3 Rd6 Nf2 Nh3 a8R Nf4 Ra6 h3 Ng4 Ng6 Rab6 Nf7 Rc6 Nd8 Ra7 Rb5 Rb7 Rb3 Qa7 Qb8 Ba3 Qa8 Bc5 Qc8 Kf2 e1N Ke2 e3 Kd1 e2+ Kc1 Ng2 Bg1 Qb8 Bf5 Qa8 Qe4 Qc8 Be6 Qb8 Re7 Qa8 Nf2 e1Q+ Nd1 Qe2 Nf2 Qc8 Ng4 Qd7 Rg7 Qe7 Rf7 Qf8 Rh7 Qh8 Re7 N2f4 Rf2 Ng2 Qee3 Ng7 Qf4 Nge8 Qe4
1Q6/1p1Rpb2/1bb3N1/3P3n/2b4K/1rbkP1Nb/pP1BNN1R/n2B1Qn1 b - - 0 1 illegal: No proof kernel
3Bnn2/P3prB1/1rpn1n2/NQ1RP3/N1q2B2/kB1p4/2PRr1r1/1K4nQ b - - 0 1 illegal: No proof kernel
1bKQ1n2/qnnr1b2/2rpP1p1/BN2Qp2/3R1RB1/1P2Q1Q1/p5P1/3kN1b1 b - - 0 1 illegal: No possible last move
6R1/K1N1Ppb1/1r2pqbP/1Rn1r2b/4BNR1/QP1p4/1pkR1n2/2B1rQ2 b - - 0 1 illegal: No proof kernel
B7/P1P1p3/5nQ1/1rR2NRQ/p3kP2/p2pn1K1/rqr1NB1R/2Rn2bb b - - 0 1 illegal: No proof kernel
1k2b2K/p4B1Q/P3r1P1/bn1BN2Q/R2RNPn1/p1p1qp2/2n4r/B1b3B1 b - - 0 1 illegal: No proof kernel
1r4Nr/KQ3R1k/n2p1p1p/bPN1N2n/3RP2P/2p4q/B1Qr2N1/3b1q1B b - - 0 1 legal: proof: f4 b5 a4 g5 axb5 Bb7 fxg5 Bc8 d4 Nf6 c4 Ng8 Bf4 d5 Bd6 dxc4 d5 Bb7 Bb4 Kd7 d6 Ke6 d7 Bc8 Bd6 exd6 Qd3 Ke7 Qc2 Bg7 Qd1 Bf8 Kd2 a5 Kc3 c5 e4 a4 h4 h6 g4 f6 b4 Kf7 g6+ Kg7 b6 a3 b7 a2 b5 Ra6 g5 Qe8 d8N Ra7 Nh3 Qe6 Nc6 Qd7 Nd2 Qe6 Nf4 Na6 b8Q Ra8 Qc2 Be7 Bg2 Bd8 Ne5 Ne7 Nb3 Nf5 Rhd1 Ng3 Rd4 Qh3 Bh1 Bg4 Ng2 Bd1 Qb7+ Kg8 g7 Rb8 Rc1 Kh7 Ra1 Bc7 Rc1 a1R g8B+ Kg7 g6 Ra2 Qd3 Rd2 Qc2 Qf5 Bd5 Nh5 Ra1 Qe6 Ra2 Kg8 g7 Kh7 Ra1 Nb4 Ra7 Na6 Qc6 Bb6 Rf7 Qd7 Qb7 Ba5+ Kb2 c3+ Ka3 c4 Ka4 Qh3 Nc5 Bg4 Qd3 c2 Qc3 c1Q Qc2 c3 Be6 Bd8 Ba2 Be7 Ka5 Qf1 Kb6 Bd8+ Ka7 Ba5 Rd5 Bf3 Rd4 Bd1 g8N+
3b1K2/3QPN1p/1rBb1pqB/1np2b1B/Pr4P1/N4R1p/n3R2q/Q1B4k b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 fxe5 dxc4 Kf2 Kd7 Ke3 Kc6 Kf4 Kd5 e4+ Kd4 a4 c5 a6 b5 a7 c3 e6 b4 Kf5 b3 e5 c2 Nf3+ Kd5 d4 h3 Na3 b2 Ng5 b1Q Be2 Qc7 Re1 Na6 Bh5 Ne7+ Kf6 Nc6 g4 Ncb4 e7 Na2 e8Q Bd6 Kg7 Bf5 e6 Rb8 Qd7 Rb6 Re2 Rhb8 a8B+ R8b7 Kg8 Qb8+ Kg7 Nc7 e7 f6 Nf7 Nb5 Bh6 Qc7 Kf8 c1B Qf1 Qd3 Rb1 Bf4 Rb3 Bd2 Qa1 Ba5 Bc1 Qc2 Rf3 Qb1 Rb2 Ke4 d5 Ra7 Bc6 Rab7 Rc3 Qd3 Re2+ Kf3 Bh6 Bf4 d6+ Kg3 Re4 Kg2 Re6+ Qe4 Rf3 Qb1 Re2+ Kh1 Qe8 Bh2 d7 Bd6 d8B Qb8 Bc1 Qe4 Bc7 Qd3 Kg7 Qc2 Qd7 Qe8 Nd8 Qg6+ Kf8 Qb2 Nf7 Qe5 Bb8 Qh2 Nh8 Ra6 Nf7 Bd8 Bc7 Rb8 Ba5 Rab6 Bad2 Nd4 Bg5 Rb4 Nh6 R8b6 Nf7 Nb5 Bh6
QKQ3qB/n2PR1p1/1BBRN1N1/1p3n2/2PrBb2/4pr2/rpk1b1qP/8 b - - 0 1 illegal: No proof kernel
1bq1r2Q/2pB2pr/Pqn1k3/4p2N/1P2Q2b/K2P2BN/2N1bNRp/nR6 b - - 0 1 illegal: No possible last move
6Rn/Nb1Q2pp/1Brr1p2/P1q3QK/p6P/Pbk2N2/NN1rRr2/1n1B4 b - - 0 1 legal: proof: f4 d5 g4 a5 c4 e6 cxd5 Ba3 f5 exf5 Qc2 fxg4 Qd1 g3 b4 a4 Nc3 Bb2 Nb1 Bd4 Bh3 Bb6 Bf1 Ba5 bxa5 Be6 Nf3 Bf5 Ng1 Bc8 d4 Ke7 e4 Kf6 Ke2 c5 Kf3 b5 h4 b4 d6 b3 d7 b2 Kg4 c4 a3 g2 d5 Ke5 d6 c3 Qd2 f6 Be2 c2 Bd1 Ra6 Rh2 Nh6+ Kh5 Nc6 Nc3 b1B Na2 Ne7 Qg5+ Kd4 e5 Nd5 e6 Qf8 d8N Nf7 d7 Qc5 e7 Bb7 e8N Nc3 Nf3+ Kc4 Bd2 c1R Be3 g1R Nc6 Rf1 d8Q Rf2 Qd7 Bc2 Na7 Bb3 Rb1 Rd6 Rb2 Rdd2 Nd6+ Kd3 Bd4 Nb1 Nc4 Rd8 Rg2 Nh8 Rc2 Rf1 Re2 Rf2 Rb2 Rc3 Re8 Rc1 Rg8 Rc3 Qf7 Rd6 Qd7 Qb5 Bb6 Rc1 Ne3 Rc6 Nc4 Qc5 Rc2 Rg2 Rb2 Rdf2 Re2 Rh2 Nc1+ Kc3 Nb2 Rhg2 Re5 Rfd2 Re2 Rf2 Na2+
2Q3n1/2BRPpK1/1PR3B1/1BrpQ3/1q2pb2/Pp5b/Nb1N4/1nb1k1Br b - - 0 1 illegal: No proof kernel
RB2K3/BR2pQ2/2P2N1b/1B1N2pB/3P2p1/QP3b2/2rqnprb/nk3b2 b - - 0 1 illegal: No proof kernel
Q1r4R/4N1qq/p4prp/P4KRP/1Rn3BR/1b1Q2Pb/2p1B1rb/1k5N b - - 1 2 legal: proof: e4 e5 f4 b5 fxe5 g5 d4 Nf6 c4 bxc4 e6 Na6 d5 Ng8 Be3 Ke7 Bf4 Kf6 e5+ Kf5 Kf2 gxf4 Ke2 Ke4 Ke1 Nc5 e7 Ne6 Qh5 Kd4 dxe6 Kd5 Qd1+ Kc6 Ke2 Kb5 Kf3 Kb4 Kg4 c5 e8R d5 a4 c3 h4 c2 b3 c1Q h5 h6 a5 c4 Nf3 d4 Rh4 c3 Bb5 f6 Qd2 a6 Kf5 d3 Nh2 Qg1 Nf1 Qd7 Ng3 Bd6 Nh1 Rb8 Qd1 d2 Be2 c2 Qf1 d1R Nc3 Rd2 Rb1 Ka3 b4 f3 b5 f2 b6 Qe7 Nd5 Ka2 b7 Bd7 Rd1 Rc8 b8R Ba4 Rbb4 Bb3 Rb1 Qf7 e7 Rh7 e6 Bh2 Rbg4 Rg7 Rg5 Rg6 g3 Qh7 Qd1 f1B Bg4 Re2 Qd3 Bh3 Rf8 Qe1 e8B Rg2 e7 Qb4 Bf7 Qb7 e8Q Qc7 Qd8 Qa7 Be8 Qag7 Bb5 Ne7+ Ke6 Rb8 Rh8 Nc6 Kf5 Ne5 Ne7 Nc4 Q8d5 Rc8 Qa8 Ba4 Rb4 Bb3 Bc6 Ka1 Bf3 Kb1 Be2
b2Q2Rq/6r1/1K1Q1Q1N/2p1q1pp/1Pr1Q1Nn/1P2B1P1/k2bRp2/1b3B1r b - - 0 1 legal: proof: h4 e5 c4 d5 f4 dxc4 a3 exf4 h5 g5 Nh3 b5 Ng1 b4 axb4 Nc6 Rh3 Ne5 Rh1 Ng6 hxg6 Be6 Ra3 Bf5 Ra1 Bc8 Kf2 Ke7 e4 Kd6 g7 f5 e5+ Kd5 g3 a5 e6 a4 e7 f3 Ke3 a3 e8Q a2 Rh6 f4+ Kf2 c3 Na3 c2 Nb5 Bb7 Rg6 Nh6 Nd4 Nf5 Nh3 Nh4 Nf5 Ra7 Nh6 Ba8 g8Q+ Kd4 Rb1 a1Q Qgf7 c5 b3 Bd6 Rb2 Qc8 d3 Kc3 Be3 c1R d4 Rc7 Qfe6 Rg7 d5 Be5 Ke1 f2+ Ke2 Qc7 d6 Bd4 d7 Qe5 Rd2 Rc2 d8Q Kb2 Kd3 f3 Nf7 Ka2 Re2 Bc3 Kc4 Bd2+ Kb5 Rc4 Qef6 h6 Kb6 Qab2 Bg2 f1B Nf2 Qa1 Ng4 f2 Bh3 Bfg2 Qee7 Bge4 Bf1 Bb1 Qb7 Rhh7 Qe4 Qad4 Qde7 Qd8+ Qc7 Qh8 Qcd8 h5 Nfh6 Re7 Rg8 Rhg7 Qc1 Rd7 Qc3 Rd3 Qcd4 Rdc3 Qef3 Rc1 Q4d6 Rd1 Qe4 Re1 Bh3 Rh1 Bf1
bR2NBk1/1pP4R/1q1qp2B/3b1Q2/1PqpPnK1/2pr1r2/3bN3/B2Q3B b - - 0 2 illegal: Other
3RQ3/b1pQK2p/k4QpP/4n3/rQn1n1P1/1B1pB1N1/P1n2RbN/q4n2 b - - 0 2 legal: proof: e4 e5 c4 f5 b4 b5 d3 bxc4 b5 c3 b6 axb6 exf5 e4 d4 Ra5 Nd2 Rb5 Nb1 Re5 dxe5 b5 Ke2 d5 Ke3 Kd7 Kf4 Kc6 h4 Kb6 g4 c2 f6 d4 Kg5 g6 f4 e3 h5 b4 h6 b3 f5 b2 e6 e2 e7 e1N e8Q Bb7 Nd2 b1N Ndf3 Nd7 Ne2 Ka6 Be3 c1N Ng3+ Ne2 Rh2 Ne5 Rf2 Bc5 Nh2 Na3 Rb1 Qc8 f7 Bg2 f8Q Nac4 f6 Ba7 f7 Nf6 Qb4 Nc2 f8Q Qd7 Qd3 Qg7 Rd1 Rg8 Qf5 Rh8 Qfd7 Ne4+ Kh4 Rg8 Qff5 Rf8 Qg5 Rf4 Qf6+ Ned6 Kg5 Re4 Nf5 Ng3 Bd3 Nf1 Ng3 Rf4 Bf5 Qh8 Be6 Qg7 Bg8 Qh8 Qfg7 Re4 Kf6 Rf4+ Ke7 Ne4 Re1 d3 Be6 Nf3 Qgf7 Qa1 Qf6 Rf5 Rb1 Ra5 Rb3 Nfe5 Ra3 Ncd6 Bb3 Ra4 Rd2 Bc5 Qde6 Ka7 Qfh8 Ra6 Qhf6 Ndc4+ Qd6 Bd4 Rf2 Bb6 Ra5 Kb7 Rd5 Ra4 Qde6 Ka6 Rd8 Nc5 Qfh8 Ne4 Q6d7 Ba7 Qf6+
2Q2Q2/kb5R/p1P1N3/3rb2b/nNp5/p2pqRR1/rP1PB3/2bbK1BR b - - 0 1 illegal: No proof kernel forced: bxDB
2R2n2/1P3R1B/1KpRPB2/2P2N2/1Q3k2/1nbrpppq/N1rr1R1r/2r2Q2 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 h5 Bh3 hxg4 Bg2 Qd6 Bf1 Qd8 f3 e5 Kf2 e3+ Kg3 e2 Ra4 e4 Kg2 e3 Ra3 Bb7 Ra1 Be4 fxe4 Qc8 Ra2 Qd7 Ra1 Qd8 c4 Ke7 d4 Ke6 b4 e1R h4 f5 h5 a5 c5 g5 h6 g3 Kf3 f4 b6 a4 b7 g2 e5 Kf5 e6 a3 b5 a2 b6 Bg7 h7 Na6 b8Q Qe8 d5 Bb2 d6 Nb4 d7 Nc6 d8R Na5 Nc3 Nf6 Nge2 g1R Rd6 Rg2 Rh2 Nb3 Nd4+ Ke5 b7 Ree2 Nf5 Rc2 Bd3 Rgd2 Qf1 Ra3 Rf2 Nd7 Qa7 Qb8 Qb6 Nf8 Qb4 Qc8 Rb1 a1R Na2 Bc3 Bb2 Qb8 Rd1 Rac1 Rd7 Qd8 Rf7 Qf6 Be4 Qh6 Ba1 Rd8 Rd6 g4+ Kg2 g3 Kf3 Qh3 Bd3 Rg8 h8R Rg4 Be4 Rh4 Bb2 Nd2+ Ke2 f3+ Kd3 Nb3 Kc4 Kf4 Kb5 c6+ Kb6 Be1 Bf6 Bc3 Rd1 Rdd2 Rg8 Qg2 Rh8 Rh2 Rg8 Qh3 Rh8 Re2 Rd6 Red2 Rg8 Nh7 Rc8 Nf8 Qbb5 Ra4 Qa5 Rad4 Qb4 R2d3 Nh6 Rdd2 Bh7 Rd3 Nf5 Rdd2 Qa5 R4d3 Qb4+
K1Bb4/n3nB1R/pB1P4/5r1k/1p2pn2/b2q1b1N/QPp1BbQP/RN6 b - - 0 1 illegal: No possible last move
Q4NR1/4rB2/3pR3/n2P4/2nRrP2/pNq1b1pk/p1P1KBR1/q4Qqq b - - 0 1 illegal: No proof kernel
4n2b/k2R1P1q/2BB1pQ1/3B1rbp/p1pNB3/P3nP2/2bb1K2/q3N1QR b - - 1 2 legal: proof: g4 a5 d4 b5 c4 bxc4 h4 Nh6 g5 Ng4 h5 Nh2 g6 e5 dxe5 f6 h6 Ke7 Nd2 Ra6 Nb1 Re6 Qd3 Ke8 Qd2 Re7 Qd1 Rf7 gxf7+ Ke7 Bh3 Ng4 Bg2 Nxh6 Bh3 Ng4 Bf1 Nh2 e4 g5 b4 d5 a3 Kd7 e6+ Kc6 b5+ Kb6 e7 c5 e8B a4 f3 c3 e5 c2 e6 g4 e7 d4 Ra2 c4 Bd2 c1B Bg2 d3 Bb4 g3 Nh3 Bf5 Bd6 Ng4 Nc3 Ka7 Bf1 g2 Rd2 g1B Nf2 Ne3 Ne2 Na6 Nd4 Bg7 Bc6 Qg8 e8B Nc7 Bd5 h5 Bd7 Qh7 B7c6 Rg8 Bh3 Bg6 Bf5 Ne8 Bfe4 Bh8 Qc2 Bf5 Rd1 Rg5 b6+ Ka6 b7 d2+ Ke2 Ka7 Nd3 Bf2 Ne1 Bh4 Qd3 Bg6 Qb1 Rf5 Qc2 Bg5 Kf2 Bb2 Qd3 Bc3 Qf1 Ba5 Qg1 Bc3 Ra1 d1Q b8Q+ Ka6 Rb1 Bd2 Rb7 Qc1 Rd7 Qa1 Bb7+ Kb6 Qd8+ Ka7 Qc8 Nc7 Qg8 Ne8 Bdc6 Rb5 Bed5 Bc2 Qg6 Ra5 Be4 Re5 Bcd5 Rf5 Bbc6+
1q1B3r/qR1BpbQq/k1BP3r/4P1p1/5pQ1/N1n1BpP1/6b1/N1q1R1K1 b - - 1 2 illegal: No proof kernel
2K2bq1/2pQP3/1N1prQ2/kn1n1qpQ/1p1q1R2/3BrQ2/1P1PB2R/2qN4 b - - 1 2 illegal: No proof kernel forced: bxDB
Rq1B1nQ1/QNk1b2p/1p2rP1K/pB2r1R1/3b1p2/5P2/P1N1r2Q/qQ5r b - - 1 2 illegal: No possible last move, all moves rejected
kn3N2/PRrRp3/pB3B2/p2KQr2/N2bP3/3bpNQ1/Pb3q2/1b1q3N b - - 1 2 illegal: No proof kernel
Bk1rRQ2/3N2rb/B1n1pK2/4p1P1/P2pP2B/Q3N2p/1b5b/1r1rBR1n b - - 0 1 illegal: No proof kernel
1r2Q2r/r2BB3/3P2B1/2p3p1/qR2qp1N/1QPp1r2/1rR2PK1/N2bk1Bn b - - 0 1 legal: proof: e4 h5 b4 a5 g4 axb4 d4 hxg4 d5 e6 Bg2 c6 Bf1 Bd6 Ba3 Bc7 d6 Na6 Bc4 Bb8 Bd3 Nc7 Bc1 Nd5 Bf1 Bc7 dxc7 Ndf6 Bf4 d5 Bd2 d4 Bc1 Nd5 exd5 Ra7 Bb2 Ra5 Bc1 Ra8 a4 Kd7 h4 Kd6 a5 Ke5 c3 Ke4 d6 b5 a6 f5 a7 g5 h5 e5 h6 c5 h7 b3 Rh5 b4 Nf3 b2 Bg2 b3 Kf1 d3 Qd2 g3 Rh1 Nf6 Rh3 Qe8 Qc2 Qa4 Be3 Nh5 Bh1 g2+ Kg1 Ng3 Na3 b1R+ Qd1 b2 Ra2 Rb8 Nc2 Ra1 Nh4 b1R Bf4 R1b2 a8Q+ Bb7 c8B Bd5 Qa6 Be6 Bd7 Bb3 Ne1 Bc2 Qb5 Bb3 Qh5 Bc2 Qb3 Bd1 Ra3 Raa2 Qe8 Ra1 Nc2 Raa2 Ng6 Kf3 Na1 Ke2 Rh4 e4 Be5 e3 Rb4 Ke1 Nh4 e2 Bf4 Rf8 h8B Rf7 Kh2 g1R Be4 Nh1 Bf6 Rf8 B4e5 Rg3 Be7 Rf3 Kg2 Rh8 Bh2 f4 Bef5 Qc6 Ra8 Ra7 Bg1 Qa4 Bh7 Kd2 Bg6 e1Q Be6 Qe4 Bd7 Rc7 Ra5 Ra7 Rab5 Ke1 Ra5 Qac6 Ra3 Qa4 Ra2 Rb1 Rd2 Rb2 Rc2
1bN2N1r/bQ6/RPQbp1Bp/3rBp1P/2r1RK2/5N1p/N3bP2/3r1n1k b - - 0 1 illegal: No proof kernel
1nR4N/4n1P1/NPpBBq2/2Pp1bB1/p1n1p1bQ/3p4/1r1k1K2/QR1Br3 b - - 0 1 illegal: No possible last move, all moves rejected
1q4b1/Rp1Npp1P/4n1NB/K1QpB2Q/5r2/3p1Bnb/1rP1P3/1bR1k1B1 b - - 0 1 illegal: No possible last move
K2RB3/ppbQ2N1/1Brp3r/b1p1P1k1/1nBP4/n1n1P1NB/qR2Q2p/8 b - - 0 1 illegal: No proof kernel
3N4/Pkp3Qp/q2B1p1P/Q1PpR1R1/n2KB3/Rb2nr2/1p3rR1/2qb1N2 b - - 0 1 legal: proof: e4 a5 d4 g5 f4 gxf4 b4 axb4 d5 e5 dxe6 d5 e5 Bd6 exd6 Ra4 Nh3 Ra3 Ng1 Ra8 Ke2 b5 Kd3 b3 h4 f3 a4 b4 c4 f2 g4 f6 a5 b2 a6 b3 a7 Ba6 e7 Kd7 e8R Kc6 d7 Nh6 h5 Kb7 g5 Rf8 g6 Kc6 g7 Qe7 d8Q Qe2+ Kd4 Rh8 g8R Nd7 c5 Bc4 Qe7 Ng4 h6 Nb6 Rh5 Kb7 Qd2 Na4 Rhg5 Rb8 Nf3 Ne3 Bg2 f1Q Qa5 Qed1+ Bd2 Qc1 Ne5 Qe2 R8g7 Rg8 Nc6 Qef1 Be4 Qe2 Na3 b1B Nc2 b2 Ra3 Bb3 R7g6 Qa6 Qg7 B1a2 Ree5 Rge8 Be1 Re7 Bg3 Rbe8 Na1 Bd1 Nb3 Re6 Nd2 Bab3 Nf1 Rb8 Ref5 Rg8 Bd6 Re5 Rf2 Rf5 Rfg2 Rf3 Re5 Re8 R6g5 Rg8 Qd7 Rg6 Qg7 Rf2 Rh5 Rg3 Rhg5 Rgf3 Nd8+
3R1K1n/1bq2p1P/2R2PN1/1NNQp2q/3r1r1B/p2p1p2/Q2Pn3/1k2r1NB b - - 0 2 illegal: No proof kernel
1RR1q3/Qpp1n3/p2N1Bq1/3kp1N1/P1rNNq1B/4p1Q1/r2nPPK1/3b4 b - - 1 2 legal: proof: h4 d5 c4 g5 cxd5 gxh4 g3 e6 b4 a6 b5 Bc5 Bh3 Ba7 b6 e5 bxa7 e4 Be6 fxe6 Kf1 Kf7 a4 h5 d4 e5 g4 h3 g5 h2 d6 Ke6 d5+ Kf7 g6+ Kf6 d7 h4 d6 Ke6 g7 h3 Bg5 e3 Nf3 Rh4 Nc3 Rb4 Qd4 Nc6 Rd1 Qf8 d8B Rc4 d7 Nf6 g8Q+ Qf7 Qg7 Ne4 Bdf6 Ne7 Rd2 Rb8 a8N Qg8 Rg1 h1Q Bh4 Qh2 Qa7 Qf4 Nb6 h2 Rd1 h1Q d8N+ Kf5 Nf7 Ke6 Rd8 Qg2+ Ke1 Qgg4 Kf1 Bd7 Rf8 Rd8 Nc8 Be8 Rg3 Rd2 Kg2 Ra2 Ncd6 Nd2 Qg6 Bc6 Rb8 Be4 Qg7 Bd3 Nce4 Kd5 Nd4 Bc2 Qg5 Qd7 Qg4 Bb3 Qf3 Qh7 Rgg8 Qg6+ Qg3 Bd1 Rgc8 Qe8 Nfg5
4rQ2/rp5Q/1BBp1bkN/4nRpR/P5n1/pK1P1n2/Pb5p/1B2Br1N b - - 0 2 illegal: No proof kernel
7q/2KBQ1n1/b2p1p2/1p1P3k/Q1bnR3/2PBpRN1/1N1pPr1b/N2b1N2 b - - 0 2 legal: proof: d4 b5 h4 c5 g4 g5 hxg5 a6 f4 Nf6 g6 Nd5 g5 Rg8 f5 Nf6 d5 Rh8 Be3 Ng8 Bd4 cxd4 b4 a5 g7 axb4 Bh3 Ra6 Bf1 Rg6 fxg6 Bb7 Bh3 Ba6 Bf1 Bc8 Kd2 e5 Kd3 h5 Ke4 h4 a4 b3 c3 b2 a5 d3 a6 h3 a7 h2 a8N d2 Bh3 Na6 Nf3 Bc5 Na3 b1B+ Nc2 Rh6 Rf1 h1B Ra4 Ba2 Nb6 Ke7 Na1 Bf2 Nc4 Bg3 Nb2 Nb8 Kf5 f6 Re4 Rh4 Qa4 Nc6 Nh2 Ba6 Rf3 d6 Nf1 Bh2 Bg4 Ke8 Ke6 Nge7 g8B Nf5 g7 Bc4 g6 Qa8 Bh3 Rf4 Bh7 Qb8 g8N Kf8 Kd7 Kg7 Bg4 Ncd4 Nh6 Qh8 Kc7 Bg2 Rd3 Rf2 Rf3 Bh1 Nf7 Bg2 Ng5 Kh6 g7 Bh3 g8Q Ng7 Bc8 Kh5 Qd8 Bf5 Bd7 Bg6 Qe7 Bf5 Ref4 Bc2 Bd3 e4 Rg4 e3 Ne4 Bd1 Neg3+ Kh6 Re4 Kg5 Nf5 Kh5 N5g3+
1B4K1/4pNp1/Q3rP2/2Q1br2/p7/RP2rB2/pnr1NpP1/kqN2RNn b - - 0 1 illegal: No proof kernel forced: wxDB
1r1N2N1/5QBp/p1RBnpr1/Np1KRPnb/1q1p4/5pPN/n2P3k/4Q3 b - - 0 2 legal: proof: b4 e5 f4 c5 bxc5 g5 h4 gxh4 a4 b5 e3 e4 a5 Bd6 Be2 Bc7 Bf3 Bb6 axb6 exf3 Kf2 Ke7 c4 Ke6 e4 d5 Ke3 h3 Kd4 h2 b7 a6 f5+ Kf6 c6 Kg5 c5 Kh4 g3+ Kg4 e5 Qc7 e6 Qd8 c7 Qd6 e7 Qd8 e8Q Nf6 c6 Rg8 Bb2 Rg7 Qde1 Qd6 Nh3 Ne4 Na3 Nc5 Rc1 Rg6 Nc4 Be6 c8N Qf8 Rg1 h1N c7 Nf2 Na7 Nfe4 c8N Ng5 Na5 Bd7 N7c6 Nce6+ Ke5 Qb4 Nd8 Bc6 Qf8 Be8 Rc5 Nc6+ Kd6 Rh6 b8B Rg6 Bg7 f6 Ne7 d4 Kd5 Bf7 Bd6 Rb8 Rg2 Be8 Ng8 Bf7 Nf4 Be8 Re2 Bf7 Ng2 Kh3 Re5 Kh2 Rc4 Rh6 Nf4 Bh5 Nh3 Rg6 Qf7 Qb1 Bdf8 Nb4+ Kd6 Qb2 Rc6 Na2 Kd5 Qb4 Bd6
Q1RqnR2/1NkP1RpQ/3p4/ppr2qp1/p1rPP3/6B1/2B3N1/n2b1R1K b - - 0 1 illegal: Other
KQ3qb1/P5Rk/1NrB3b/1npB2pR/2Prqq2/2BBr1P1/1N6/1Qn1b1n1 b - - 0 1 illegal: No proof kernel
NR1bbnB1/1BQ2n1q/1np5/1nP4q/r5p1/n5Pq/1kPRK1Q1/1N3BBr b - - 0 1 illegal: No proof kernel
r3r2Q/n4bnR/2R2bqr/1p1RP3/1PQ2p1B/K5nq/1RB2Pb1/1NNrk3 b - - 0 1 illegal: No proof kernel
2N2Q1n/2PKN2b/pr5q/r2nkp2/P2bnP2/1R1q1Q2/1RQ2q2/Bq2Q1rB b - - 0 1 illegal: No possible last move, all moves rejected
RN1Q4/1P1q1N2/1bpR1qR1/n1P2b1q/p1Q3B1/1q4Bk/P1nKR1nr/1r1b4 b - - 0 1 illegal: No proof kernel
2rN3n/Q1pR3R/1RP1qp2/B2n2b1/1b2Bk1q/2P2P2/Q2K1Nbn/3bRqr1 b - - 0 1 illegal: No proof kernel
3nN3/B2BK1k1/4RP2/QpBQ2pr/2rq1R1r/n1bN4/bPn2bPq/Br6 b - - 0 1 illegal: Other
R2Nqbk1/r5rb/2BbP2n/pB3p2/Q1n5/4qNqq/P1B1RPQ1/1K2Bn2 b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 h5 Bg2 hxg4 Bh3 Rh5 Bf1 Rh8 Kd2 a5 h4 d5 c4 g5 Kc2 b5 e4 g3 c6 b4 h5 d3+ Kb2 d2 e5 g4 h6 g2 h7 b3 c5 d4 c7 d3 c6 g3 Na3 Bf5 c8B Ra7 c7 Nc6 e6 Ne5 Qc2 d1N+ Kb1 d2 Bb7 b2 c8B Nc4 Rh4 Nde3 Ba6 d1Q Bab7 Nh6 Nf3 g1Q Be4 g2 Nb5 Q1d3 Bd2 Rg8 h8Q Rg7 Nbd4 Bh7 Qg8 f5 Be1 Qg5 Be2 Nf1 Bcb7 Qge3 Nc6 Qh1 Rh5 g1B Nd8 Bh2 Bbc6+ Ke7 Rg5 Bd6 Rg2 Qc3 Qa4 Qh3 Bc2 Qce5 Rg4 Qeg3 Rh4 Rf7 Qg4 Kf6 Qe4 Kg7 Qd5 Kg8 Rh5 Ne5 Beb5 Rg7 Qde4 Nc4 Qg4 Qgh4 Qg2 Qe7 Rh4 Qe8 Rd4 Qg3 Rd2 Qh3 Re2 Qa3 Bd3 Rf7 Kc2 Re7 Nd4 Rc7 Rd1 Ra7 Nf7 Bc7 Bde4 Qd6 Nf3 Qdg3 Rd8 Bcd6 Ra8 b1Q+ Kc3 Nce3 Bc2 Qc1 Nd8 Qd2+ Kb2 Nc4+ Ka1 Qe3 Kb1
2r2brq/rR2bp1b/2N1n1q1/Bpq2Q2/k1P5/4Q1R1/nP2KPN1/N2BN2b b - - 0 1 illegal: No proof kernel
BR1q1nKR/1Q4B1/b1Nr1b2/p1Pn2b1/P2rQbk1/3pQb2/2nP4/2Q2Nn1 b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 c5 bxc5 h5 Ba3 hxg4 Bb2 Rh7 Bc1 Rh8 Kf2 Ke7 h4 Ke6 c4 Kf5 a4 b5 h5 d5 h6 a5 e3 g5 c6 f3 Kg3 b4 c7 b3 h7 b2 c5 d4 Qe1 f2 Ne2 d3 Ra3 Nf6 Rg1 Nd5 Bh3 f1B Ra2 Ba6 c8Q+ Nd7 Rh1 Bh6 Ra1 Bg2 Nbc3 b1N Nd1 Nbc3 Qb8 Bf3 Bb2 Nf8 Bg2 f6 Kh2 g3+ Kh3 g4+ Kh4 Bf4 Kh5 Rg8 h8Q Rg6 Qh6 Bg5 Nf4 Ne2 Qb7 Ng1 Rb1 Rc8 Qf1 Rc6 Bc3 Rd6 Ne6 Rg7 Rh4 Rgd7 Bh1 g2 Nd4+ Ke4 Rb5 f5 Nc6 f4 Bg7 Kf5 Rb3 Be4 Rh3 f3 Qe1 f2 Rb6 Bf3 e4+ Kf4 e5 f1N e6 Kf5 e7 Nfe3 e8Q Nc2 Ne3+ Kf4 Qc1 g3+ Ng4 Kf5 Qhe6+ Kf4 Qe2 Bf6 Kh6 Kf5 Ne3+ Kf4 Nf1 Kg4 Qa8 Nc3 Rh2 Rd4 Q8e7 Nh3 Na7 g1B Rb1 g2 Rb8 R7d6 Q2e3 Bfb7 Q3e5 Bf2 Qe3 g1B Be4 B2h4 Rh1 Bh2 Qd7+ Ne6 Kh7 Ng1 Qe8 Bd5 Kg8 Bf4 Rh3 Bhg5 Rh8 Bc6 Bg2 Be4 Qd5 Nf8 Qdf7 Bf5 Ba8 Nd5 Nc6 Be4 Qb7 Bf3 Q8e4
QNq4N/1b1kn3/4q2Q/bqBpRrp1/r2q4/1P1P1R2/nqQ1Q1P1/2qB3K b - - 0 1 illegal: No proof kernel
1R3Bk1/bp4BN/2qp4/K1nQQnb1/1n1r3P/B3n1n1/1PNP4/1r2RBbb b - - 0 1 illegal: No proof kernel forced: bxDB
q5b1/4NnbR/1B1nK1p1/r4pP1/nQ1P4/Nn3PR1/Q6r/rR1BRbkr b - - 0 1 illegal: No proof kernel
2bbk2K/N2Q1r1B/R1Qprn2/3P2B1/1bb4p/rR4qP/1n2r1Pq/1B1B3N b - - 0 1 illegal: No possible last move, all moves rejected
5bBB/RN2RR1Q/Ppq5/bbb1p1rQ/2r1Pr2/k1r5/1P6/n1RNKn1q b - - 0 1 illegal: Other
Q2nqQ2/r1p1bBR1/2r3NK/qp6/1PQ1rrbk/Q6N/1qPB2RP/3qn3 b - - 0 1 illegal: No possible last move, all moves rejected
B5rB/5QBQ/nbpp2N1/1n1Rr1BN/K2PRp2/P1bq1P2/4nrb1/4kq2 b - - 0 1 illegal: No proof kernel
2RNKbr1/4P2k/ppB1qrn1/r2Q1pqb/qBR2PN1/P3N1Q1/7b/3n1N2 b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 h5 Bg2 hxg4 Bh3 Rh5 Bf1 Rh8 Kd2 g5 Kd3 d5 e4 f5 f4 Kf7 h4 Kg6 c4 g3 e5 g4 a3 a6 e6 b6 c6 g2 e7 g3 h5+ Kh6 c5 Qe8 c7 Bd7 c8Q Ra7 c6 Ra8 c7 Kh7 h6 Qf7 Bd2 Nf6 Nf3 g1B Bb4 g2 Nh2 Be8 Ng4 Nc6 Nd2 Qe6 Rc1 Bh5 Rc4 Rg8 Be2 Rg6 Bf3 Bh2 Nf1 g1Q Qb3 Qg3 Qd7 Ne4 c8N Rf6 Nd6 Nc3 Rg1 Rc8 Rg2 Ra8 Rc2 Nd1 Qc3 Rd8 Qe1 Qh4 Qg3 Qg5 R2c3 Kg6 h7 Ne5+ Kc2 d3+ Kb3 d4 h8N+ Kg7 Bc6 d2 Nhf7 d3 Rc2 Ra8 Nd8 Ng6 Qb7 Kh7 Qd7 Qf7 Qe6 Rc8 Qd5 Qe6 R2c3 Ne3 Rc2 d1Q Kc3 d2 Kd4 Nh8 R2c3 Qa4 Rc1 Nd1 R1c3 Qf7 Ke5 Rb8 Rc5 Rc8 Nc4 Qfg8 Nce3 Qe6+ Kd4 Ng6 R3c4 Bh6 Be8 Rb8 Rc8 Bf8 Bb5 Nb2 Bc6 d1R+ Nd2 Re1 Ndf1 Nd1 Qb5 Ne5 Nf7 Nc3 Nc2 Qg7 Rc7 Qg5 Qc5 Re8 Rc8 Bg7 Nd8 Ng6 Qa5 Re5 Nce3 Rg8 Qc5 Qf7 Qd6 Ra5 Qd5 Nh8 Ke5 Nd1 Ne6 Ng6+ Kd6 Bh6 Kd7 Bf8 Nd8 Qe6+ Ke8
qQ4RN/br2BN1n/ppN1rr2/PP3RQ1/3N1Kb1/2rpr3/3PB3/b1k2n2 b - - 0 3 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 b5 Nf6 Qg4 Ng8 Qb4 cxb4 Ke2 Kf7 Kf3 Kf6 c4 Ke5 a4 Kd4 g4 e5 f6 d5 g5 h5 f7 h3 c5 b3 g6 b2 g7 a6 a5 h2 c6 e4+ Kg3 e3 f4 e2 f5 Kd3 f6 Kc2 c7 e1B+ Kf3 h4 Bc4 d4 Bf1 h3 Ra2 d3 Ke3 Bf2+ Kf3 Ne7 g8N Nd7 Ne2 Rh7 Ke4 Nd5 Nbc3 Ne3 Ne7 Bg7 Ra1 b1R f8Q Rb3 f7 Nf6+ Kf4 Bg4 Ne4 Rc3 Rg1 h1R c8Q h2 Ba3 Rh3 Rg2 Rb8 Nc6 Nh7 Qf5 Rg1 Qf6 h1R Ng5 Rh6 Rg3 R1h3 Be7 Qd5 Qf5 Rf6 Ned4+ Kb2 Ra4 Kc1 Be2 Nf1 Qe8 Qd8 f8N Rhh6 Rf3 Rg3 Nf7 Bg1 Rf2 Re3 Ng6 Rfe6 Ngh8 Rhf6 Qf8 b6 Nf3 Rg6 Rd4 Rb7 Qg5 Qe8 Rd8 Rb3 Rb8 Bc3 Nfd4 Ba1 Rc8 Rc3 Qg8 Bf3 Kf5 Bh2 Bf6 Bb8 Be7 Ba7 Qf8 Bh1 Kg4 Rgf6 Rf5 Bf3+ Kf4 Bg4 Rb8 Qc8 Qd8 Rd7 Qe8 Qb7 Qc8 Qa8 Qb7 Rc7 Rg8 Rd7 Qc8 Rb7 Qb8
Q1QN4/1qnB1k2/Q1pQ2rp/3n1P1P/2b2R2/pNRb2B1/P1nn3r/b1nK4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g3 f5 g4 fxg4 f4 g5 h4 a5 e4 d5 b4 g3 b5 g2 f5 g4 b6 c3 b7 c2 e6 d4 e7 d3 e5 d2+ Ke2 g3 Rh3 a4 Ba3 c6 Bb4 a3 Rh1 Qd7 Nh3 Kf7 Bd6 Nf6 Nf4 Bg7 Rh3 Na6 b8Q Bb7 Qc7 Rag8 Qa5 Qc8 Qa4 Nc7 Qa5 Ba6+ Qb5 Nd7 Qd3 Nb6 e6+ Kf6 e8Q Qb7 Qa8 g1N+ Ke3 g2 e7 Bb5 e8Q Ne2 Qec8 g1N Bg2 Nd4 Bd5 Ba6 Be6 Ngf3 Bd7 Kf7 Ne6 Be5 Q1f1 d1B Nd2 Rg6 Rb1 Bb5 Rb4 c1N Nb3 Bc2 Kf2 Nd2 Ke1 Bb1 Kd1 Ba6 Qg3 Nbd5 Qb5 Bf6 Qa5 Bf1 Q5a6 Be4 Ra4 Nc2 Qf4 Ba1 Rc3 Bb5 Be5 Bed3 Qb4 Nc4 Qd6 Nd2 Re4 Bbc4 Bg3 Rf8 Rf4 Re8 h5 h6 Ned4 Re2 Ne6 Rh2 Nd8+
r2k2b1/RnQ2B2/p2Bb1r1/5p1n/Kb1N2pq/1QrR1P1N/N1P3P1/bN3b2 b - - 0 1 illegal: No proof kernel
1Qr3bk/1KB1N2P/p1rR1p2/2Qr1P2/Rn1Rn2b/P2q1Npn/2Bn1n2/1R6 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 h5 Qf3 hxg4 Qe2 Qd7 Qd1 Qd8 Ke2 b5 Ke3 e5 c4 g5 d4 g3 h4 b4 f4 a6 c6 g2 c7 b3 d5 b2 a3 g4 f5 g3 d6 Rh6 h5 Be7 c5 Kf8 c6 Kg7 d7 Bh4 Qd6 Kh8 Bd3 Nf6 Nf3 g1N Bc2 Nh3 Nc3 b1N Qc5 Nd2 Rb1 Bb7 c8Q Rg6 c7 Bd5 h6 Nc6 h7 Nb4 Qb7 Rc8 Rd1 Ba2 Ke2 e3 Nd5 Nfe4 Ne7 Rc6 Qb8 f6 Bb2 Bg8 Bc3 Nd5 Kd3 e2 Ba5 Nb4+ Ke3 e1N Bb6 Nb3 Rd6 Ned3 Ba5 Nbd2 Rd4 Qe8 d8R Ndf2 R8d5 Qd8 Rd6 Nc3 Bb6 e4 Ba5 Nbd3 Ra4 Nb4 Kd4 e3 Bb6 e2 Ba5 Qd7 Bb6 Rf8 c8R e1R Bc7 Rd1 Rd8 Nce4 Rd5 Re6 Rd6 Qb5 R8d7 Rc8 Rd8 Na2 Kd5 Qd3+ Kc6 Nb4+ Kb7 Rf1 Re8 Rd1 Rd4 Rd6 Rf8 Rc1 Rd8 Rd5 Bd1 Rc4 Rd6 Rc3 Bc2 Rc4 Qa5 Rc6 Qc5
5bq1/1B1pbb1p/1K3Q1k/1R2qR2/3PR1pN/r5PP/1b4RN/1nBrnQ1n b - - 2 3 illegal: No possible last move
5B2/1B1N1rp1/K2Bq1pn/2Q1n3/1p1q1NP1/2R1bn1Q/nP1P2rk/r2bRB2 b - - 0 1 illegal: No possible last move, all moves rejected
1kn3K1/2p3Bn/2rBp1Br/Q6q/qPPqNR1p/1Nn1b1R1/Qqb2B1P/8 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 b5 axb5 f5 Ra4 fxg4 Ra2 Ba6 Ra1 Bc8 Ke2 Kd7 Ke3 g5 Kd4 h5 Kd5 a5 d4 e3 c4 e2 b4 e1Q f4 a4 f5 h4 b6 g3 b7 a3 f6 g2 f7 a2 Qf3 g4 Be3 g3 Nh3 g1N Nf2 g2 Qe2 Bh6 f8B Nc6 b8Q Qd2 Bg7 Na7 Qb6 Qe8 Qa5 Nf6+ Ke5 e6 d5 Bb7 d6 Kc8 d7+ Kb8 d8B Nc8 Be7 Be4 Bd6 Ra6 Bb6 Qd1 Nd2 Qda4 Nb3 Qf7 Rd1 a1Q+ Rd4 Q1a3 Qd2 Ne2 Rg1 Nc3 Qa2 Bc2 Bd3 Qb2 Bh7 Bc1 Rf4 Qh5+ Bf5 Rh6 Ne4 Nh7 Bbc5 Ng5 Bg6 Rc6 Kf6 Nh7+ Kf7 Bd2 Kg8 Bc1 Re1 g1Q Re3 Qgd1 Rg3 Qd3 Bf2 Qd4 Rg5 Be3 Rg3
6B1/3q1nB1/Bp6/1pk2Q2/R1pRrQ2/Nbqn2b1/NPP2P1r/1q1qb1KB b - - 0 1 illegal: No proof kernel
2q1QKNk/1qqNp3/R3Np2/Rbp3Bn/2Pb3Q/1rr2B2/1nP1P3/r4qN1 b - - 0 1 illegal: No proof kernel
Q4rb1/1kN1p2P/pnnrRnB1/6N1/1Q3R1K/P2r2p1/Qbr3P1/2q1n1BQ b - - 0 1 illegal: No proof kernel
Q2B4/1pB3np/bn1b4/5rr1/1k2N1pP/pPQ1KR1r/q5Pn/N1Q2RQb b - - 2 3 illegal: No proof kernel
r6B/PQk1b1np/2n4n/3p1N2/2r1N1QP/1bpKp2q/2P1RbBR/2B1qB2 b - - 0 1 illegal: No proof kernel
8/p2p3R/Bp2Nr1p/k1r1P1NR/4br2/1r1qn1K1/P1RPR2Q/bnrQ2B1 b - - 0 1 legal: proof: f4 e5 h4 exf4 b4 c5 bxc5 g5 Ba3 gxh4 Bb2 Qb6 Bc1 Qd8 Kf2 f5 g4 h3 c4 h6 e4 h2 g5 f3 c6 f4 c5 Qb6 c7 Qg6 c6 Nf6 Qa4 Na6 Qd1 Rb8 Bd3 Bg7 Ba3 Nc5 Qc2 Na4 Ba6 Nd5 Nh3 Ne3 Qd1 Nc3 Bc5 Be5 Na3 Nb1 Re1 h1R Re2 Bb2 e5 Qd3 g6 Bd4 Qb3 Rc1 g7 Rf8 Qc2 Rf6 Qd1 Rc2 Bb6 Rc5 g8Q+ Ke7 Qg3 Ke8 Kg1 f2+ Kh2 f1R Ng5 f3 Nb5 f2 Kh3 Rg1 Qh2 f1R Kh4 Bb2 Nd4 R1f4+ Kh3 Rh1 Nde6 Rhf1 Kg3 Rh1 Qb3 Rhc1 Qa4 Nc3 Rb1 Ba1 Rb4 Nb1 Qd1 R5c3 Bc5 Rb3 Re4 b6 Bd4 Bb7 c8R+ Ke7 Rd8 Rc8 Rh8 Rc7 Rh7+ Ke8 Ng7+ Kd8 N7e6+ Kc8 Bc5 Kb8 Rb4 Rc8 c7+ Ka8 Bd4 Be4 Ra4 Rb8 c8R Rc5 Rc7 Rc8 Rb4 Rc1 Rc2 Rc5 Bb5 Kb7 Ba6+ Kc6 Nf3 Ng4 Bg1 Ne3 Ra4 Ra3 Nfg5 Rb3 Bc8 Kb5 Rb4+ Ka5 Ba6 Bd5 Re4 R4f5 Rf4 Be4 Rh4 Rf4 Rh5
b1krNrQ1/Nn1bB3/B1pR2pq/Q1P2Qnn/b6p/1b4PP/5p2/RK5Q b - - 1 3 legal: proof: e4 a5 d4 e5 f4 exd4 b4 axb4 e5 Bd6 e6 Be5 fxe5 Ra5 Ne2 Ra3 Ng1 Ra8 Kd2 h5 a4 d5 c4 b5 Kc2 f5 e7 Kd7 h3 h4 a5 f4 a6 f3 a7 f2 g3 b3+ Kb2 g6 c5 b4 Qh5 d3 Ra2 d2 Bd3 d1B Ra1 d4 Ra6 Nf6 Re6 Qf8 Nf3 Qh6 Qg4 Nc6 Na3 Nh5 Kb1 b2 Bc4 d3 Nh2 d2 Nb5 Nd8 Qf5 Rf8 Ng4 Ba4 Rg1 d1N Bg5 Nb7 Rh1 Rb8 a8Q c6 Qa5 Rd8 Ka2 b1B+ Ka1 b3 Rd6+ Ke8 Re1 Bc2 Bf1 Nc3 Nf6+ Kf7 Kb2 Ne4 Ra1 Bd1 Kb1 b2 Be2 Bdb3 Bd3 Rf8 Bf1 Bd7 Be2 Rbd8 Ne8+ Kg8 Bf6 Ng5 e6 Bc8 Nec7 Bd7 e8Q Bc8 e7 Bd7 Qf3 Bc8 Qd7 Kf7 Qdf5 Bd7 Na8 Ke8 Qh1 Bc8 Re6 Kd7 Nac7 Nd6 Bc4 Bb7 e8Q+ Kc8 Be7 Ba8 Qef7 Nb7 Ne8 Bd1 Qg8 Bg4 Ka2 b1B+ Kb2 Ba2 Rd6+ Rd7 Be2 Be6 Kb1 Rd8 Nc3 Bd7 Ba6 Bgd1 Nb5 Bdb3 Na7+
b3NB1b/KB2r1Np/3nb3/2kp2q1/Q3p1pR/nr3n2/P3P1P1/B1B2QnR b - - 0 1 illegal: No proof kernel forced: bxLB
2K4R/p1Qn2pB/2pB1n1n/P1n2bP1/5bp1/q2P2Rr/N1kQrR2/1Nr1R3 b - - 0 1 illegal: No proof kernel
2r1qn2/3Qp1r1/3p2p1/1N1N3P/QQ1P1b1r/2QkB2b/1Kbp2PR/RBnr4 b - - 0 1 illegal: No proof kernel
3r2QK/1Q2nknN/1NRQp2p/2r1PpQr/2b2Pq1/Brp2q1b/2PR4/1B6 b - - 2 3 illegal: No possible last move
NB2k3/2nb1B2/rp1r1qbp/1bb5/1Np2Q1B/1RPRP2P/1pq5/nQ3KB1 b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 f5 gxf5 a5 Bg5 axb4 Bh6 Qf6 Bc1 Qd8 f4 d5 a4 c5 a5 g5 f6 g4 a6 b3 c3 d3 a7 b2 f5 d4 h3 g3 Nd2 h6 Nc4 g2 Be3 Ne7 Nb6 Rg8 Ra3 Nec6 Nf3 g1Q Rb3 Qh2 Bg1 Nb4 e3 Bd7 Ne5 N8a6 Nc6 Rg6 Qb1 Qc2 Be2 d2+ Kf1 d1B Bc4 d3 Bg8 Na2 Nb4 c4 Be6 d2 f7+ Ke7 Rh2 Nc7 Rh1 Bh5 f6+ Kd6 Rh2 d1B Rg2 Be7 f8B Nc1 f7 Bdg4 Bd5 Bb5 Rd2 Bgd7 Rd3 Re6 Bg7 Bg6 Bf6 Qh8 Bh4 Qf6+ Bgf2 Rd8 a8Q Bf8 Qa5 Ke7 Na8 Ra6 Qaa1 b6 Qa3 Bdf5 Bg1 Rd6 Qaa1 Kd8 Qa5 Be7 f8B Ke8 Qaa1 Rd7 Qa5 Bc5 Bd6 Rd8 Bdh2 Rd6 Bf7+ Kd8 Ra3 Nb3 Be5 Na1 Rb3 Ba4 Qb5 Ke7 Qc6 Bd7+ Qf3 Bab5 Qf4 Rc6 Bg8 Ke8 Bd6 Nd5 Bc7 Rd6 Bb8 Nc7 Bf7+
1bq3RN/1p2qQ2/3Pn3/n1kr2RB/R1b4p/1PBNK1pr/Qr4pP/1R5r b - - 0 1 illegal: No proof kernel
Q1N1R1n1/pB1ppn1p/K2P2NB/Nr2q2P/1q1nPR2/4rr2/1k6/1r1QNb2 b - - 0 1 legal: proof: g4 b5 a4 bxa4 b3 g6 b4 Bg7 g5 Bc3 b5 Bb4 c3 f6 cxb4 fxg5 Ra2 g4 Ra3 Nh6 Ra1 Ng8 f4 Kf7 h4 Kf6 d4 c5 Kd2 g5 Kd3 g3 Kc4 g2 e4 g4 h5 a3 b6 g3 Kb5 c4 b7 a2 d5 c3 f5 Ke5 d6 c2 f6 Qf8 f7 Nc6 b8N Nd8 Bh6 c1N Na3 Nb3 Rb1 a1Q Rh4 Nd4+ Ka5 Bb7 b5 Ba6 b6 Qg7 f8N Qb2 b7 Nf7 Rc1 Bd3 Rc4 Qb4+ Ka6 Qf6 Rf4 Be2 Nh3 g1R Nc2 g2 Ne1 Bd3 Be2 Rh1 Bf1 g1R Be2 Rg3 Ng6+ Ke6 Bf1 Qe5 Nc6 Re3 Na5 Rf8 b8Q Rg1 Qa8 Rh1 Bg2 Bf1 Bf3 Rb8 Be2 Rb5 Rc8 Rg1 Rf8 Rgg3 Bd3 Rgf3 Re8 Rb8 Nb3 Qf6 Nh4 Ke5 Nf2 Qd2 Bc4 Nc2 Na5 Kd4 Ng4 Kc3 Rd8 Rb1 Ng6 Kb2 Rf8 Nd4 N4e5 Qb4 Rc8 Qg7 Bb5 Nf6 Nec4+ Ka1 Nb6 Kb2 Rb8 Rd8 Bc4 Ng8 Bb5 Rc8 Bc4 Rc7 Re8 Rb7 Nc8 Rb5 Bd5 Qe5 Bb7
1K3n2/R1Q5/Qpqn2k1/nQN5/2qb2pB/1P3QNp/b2pB1PP/Rr3qq1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 Nc3 e5 Nb1 exf4 a4 b6 a5 Nc6 a6 Rb8 Bd2 Rb7 axb7 a5 Bc1 Nb8 Kd2 h5 Kd3 d5 e4 g5 c4 f5 c5 Kf7 c6 g4 c7 a4 e5 f3 e6+ Kg6 e7 f4 Nh3 h4 Nc3 a3 Na4 a2 Nf2 h3 Bd2 Qd7 Rg1 Rh5 Qb1 Nf6 Ba5 Qc6 Qc2 Ne8 Rc1 a1N Qd2 Bg7 Bb4 Nd6 Qc3 Nb3 Be2 Nd7 b8Q Nf8 Ra1 Na5 Nc5 Be6 Nfe4 f2 c8Q f1Q Qa6 f3 Ng3 f2 Qc7 Qc1 Ra4 f1Q e8Q+ Bf7 Qa3 Rg5 Be1 Qc4+ Kd2 d3 Ke3 d2 Bf2 d4+ Kf4 d1Q Qf3 Qb7 Qeb5 Qc6 Rh1 Re5 Be1 Re6 Ra2 Rf6+ Ke5 d3 Ra1 d2 Bf2 Qcc2 Be1 Ba2 b3 Qf2 Rf1 Qg1 Bf2 Qdb1 Rc1 Qd3 Rc4 Qbf1 Ra4 Nh7 Ra3 Rf5+ Ke6 Qc4+ Ke7 Rf4 Kd8 Nf8 Be1 Bd4 Bf2 Nf5 Kc8 Nd6+ Kb8 Rf5 Nh1 Re5 Bh4 Re3 Ng3 Re4 Bd1 Re1 Be2 Rb1 Qac8 Nab7 Ra7 Na5 Qca6
1Q3n2/1bq1pBBp/1p2r2n/kP4rP/pB1p1R1N/b2PnRbN/B1QK4/8 b - - 1 3 illegal: No proof kernel
3r4/RBk1bKNq/2nP4/nB4p1/bp2p1b1/2B1p1r1/1P2P2p/1QnRQ1BN b - - 0 1 illegal: No possible last move, all moves rejected
1k5K/p1p2N2/NpR1bn2/1PR1Bpqn/PPB1r2Q/rb2b3/r1N2p2/3NQ3 b - - 0 1 illegal: No possible last move
1r2b3/1RB1p1p1/3p2Pp/1n1Nq3/3Bb1BB/1kn1N1PQ/2RpP2b/K2nQr2 b - - 0 1 illegal: No proof kernel forced: wxDB
R3Q1n1/p1npqpK1/P2bR3/2R1QPB1/2P3kr/2R3Nq/B4pp1/1br2n1N b - - 0 1 illegal: No proof kernel
3R3q/p2pp2b/1nrP4/1BB2R1p/2r1Q1pN/NN1PP1Q1/K4N1q/b1k2nr1 b - - 0 1 illegal: No proof kernel
4n3/2rPq2Q/N1p2pbp/1BpB2p1/1n1R1B1Q/2b3P1/N3kPKB/2q1qrR1 b - - 0 1 illegal: No proof kernel
1q3nNb/pk3p2/1P1p4/1rp1BB2/n1QB3p/r1R2RN1/PBq1bPqQ/K7 b - - 0 1 illegal: No proof kernel
Qn2K2B/2r3B1/1pQppr2/1P1PB2r/rN2B2r/1bp1P1qk/3b3p/1N2R1R1 b - - 0 1 illegal: No proof kernel
1N1QnQ2/3p3R/RNk2qP1/1qrnQbPK/1B4n1/2Rr3P/3r2N1/4q3 b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 dxc5 g5 fxg5 f5 e3 f4 g4 h5 g6 f3 g5 Bg7 Bh3 Be5 Bg4 Bf4 exf4 hxg4 Kf2 b5 Kg3 e5 a4 f2 c4 f1Q c6 b3 c5 e4 h3 b2 f5 e3 a5 b4 f6 e2 a6 e1Q+ Kh2 b3 f7+ Ke7 f8R Nf6 c7 Ne8 c6 Qf6 Na3 b1Q Nf3 b2 Nh4 Bb7 Bd2 Kd6 c8Q g3+ Kg2 Qb6 Qd8 Qb5 Nc4+ Kd5 c7 Nc6 c8Q Ne5 Ra3 Ng4 Rc3 Ra7 Qb8 Kc6 Qe2 Ra8 Qf4 Rc8 Kf3 g2 a7 g1R Rg8 Rg2 Rg7 Rf8 Rh7 Rc7 Qf5 Rg3+ Kf4 Rd3 Ng2 Rf7 Qf2 Re7 Qd4 Re2 Qe5 Ba6 Rf1 Qb8 Nb6+ Bc4 Rb3 Be6 Bb4 Red2 Ra3 Rc8 Rf3 Rc7 Re3 Rc8 Kf3 Rc7 Qff4 Bf5 Ra5 Qf1+ Kg3 Qbe1+ Qf2 b1N Kh4 Nc3 Kh5 Nd5 Ra6 Rc3 Rf3 Qb5 Rg3 Rcd3 Qc5+ Kb7 Qf8 Rc5 Rf3 Kc6 Re3 Rd4 Rc3 R4d3 axb8N+
K1B2k1r/Q1QP4/p2b1n2/Pqb1bnBn/3R3N/3B1R2/P4Rn1/3Q3n b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 b4 Nb8 Nc3 b5 Bc4 a6 Nb1 Ra7 Be2 Rb7 Bf1 Rb6 Ke2 Rc6 Ke1 Rc3 Qf3 Ra3 Qd1 Ra5 bxa5 Bh6 Qa4 Bg7 Qd1 Bf8 d3 c5 Qa4 c4 Qb4 c3 Qd4 b4 Na3 b3 Be3 b2 Rc1 Bd7 Rc2 Bb5 Nb1 Bc4 dxc4 Qd7 Nd2 Qc8 Nb3 Qd8 Na1 bxa1B Qg4 Qc8 Qd1 Qd8 Ke2 h5 Kd3 e5 Ke4 h3 f4 h4 g4 h2 d6 h3 Kd5 e4 f6 Nd7 Kc6 Kf7 Kb7 Ke8 g5 Qe7 g6 Qg7 f7+ Kd8 c5 Ne5 d7 Ke7 f5 Ng4 c6 N4f6 c7 Nh6 Rf2 c2 c8B c1B Bd3 Ba3 Ka8 Bc5 Nf3 Be5 Bg5 e3 Nh4 e2 Rhf1 Qg8 g7 h1N Rg1 e1N Rg4 h2 Rd4 Qh7 g8Q Ng3 Qg6 h1N Qgh5 Bg7 f8R Ng2 Qhg4 Qg8 Qf4 Qb3 Qfc1 Bcd6 Qc7 Nh5 Qa7 Qb5 Rf7+ Kd8 Rf3 Bgf8 Rf2 Bfe7 Rf8+ Ne8 f6 Nf5 f7 Bc5 Rg8 Bcd6 f8Q Bc5 Rg6 Bcd6 Qf7 Nef6 Qc4 Bf8 Qc6 Ke7 Qcc7 Kf7 Rf3 Bc5 Rf2 Bfd6 Rg7+ Kf8 Re7 Bg3 Re3 Bge5 Ref3
k4B1N/3P1pr1/p2B4/p1p1r2q/3Pp3/N3PQ1B/bKRN1Q2/4Q1qb b - - 0 1 legal: proof: c4 e5 a4 d5 f4 b6 a5 Na6 cxd5 bxa5 d6 e4 d7+ Ke7 Ra2 Nc5 Ra4 Ke6 Ra2 Bd6 Ra1 Be5 fxe5 Ke7 b4 g5 g4 Kf8 h4 Qf6 h5 Ne7 Rh4 Ng6 hxg6 Nb7 Rh1 Nd6 exd6 Qe7 Ra3 Ba6 Rf3 Qd8 Rf4 gxf4 g5 Bc8 d4 c5 Kd2 h5 Kc3 a6 b5 f3 g7+ Kg8 b6 h4 b7 f2 b8B h3 Qe1 h2 Na3 Ra7 Nf3 Rh5 Kb2 Qe7 d8Q+ Qf8 d7 Ra8 Nd2 Qe8 Qf6 Bb7 Qf3 Qe5 Bd6 Bd5 Bh3 f1Q Rg1 h1B Rg2 Ba2 Rh2 Kh7 g8N Kg7 g6 Qg1 Ne7 Rg8 Rf2 Qf5 Rg2 Kf6 g7 Ke6 Ng6 Kd5 Nh8 Kc6 Rf2 Re8 g8Q Kb7 Qgg3 Re5 Rg2 Rh6 Qgf2 Ka8 Nf1 Ree6 Q2g3 Rh7 Bh6 Qg6 e3 Re8 Rc2 Re5 Qgf2 Qh5 Bhf8 Rg7 Nd2
qr1RQ2k/2b3Pn/br2qPq1/7P/5QB1/q5Rn/1BQ4n/Nb1KR2B b - - 0 1 illegal: No possible last move
QBrr3R/3b2N1/3B1bn1/Q1B5/bP2N3/P1q1QP1b/1N1bk2r/1K4nb b - - 0 1 illegal: No proof kernel
4B3/2b1qnnP/KQ3PrR/R1Rkn1n1/B4BNQ/4P3/rnnq1Q2/4q3 b - - 0 1 illegal: No possible last move, all moves rejected
1B3Rb1/r1R3n1/R2Q2n1/3NNn2/1bbP1P2/5K2/b1kQ1bnP/1nN1Qr2 b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 h5 Kd1 f5 Bh3 f4 Qb3 f2 Kc2 f3 Bg4 Qd6 Qa4 Qf4 gxf4 hxg4 Kd3 Bb4 Qd1 Be7 Kc2 Bf8 Kd3 Ke7 Ke3 Kd6 b4 f1B d4 c5 b6 a5 b5 g5 b7 f2 b6 a4 Qc2 c4 Nf3 c3 Qa2 g3 Qb3 g2 Qc4 g1N Ra2 g4 Na3 c2 Nh4 g3 Ke4 g2 e3 Nf3 Ng6 g1B Qa6 Nc6 b8R Rh7 b7 Ne5 Qd3 Nge7 Qd2 Be6 Qe2 Nf5 Qe1 Nce7 Nb1 a3 Nd2 Ng7 Nb3 Nef5 Ne7 Ng6 Kf3 Bg8 e4 Bc4 Bd2 c1N Ba5 Ne2 Nc1 f1B e5+ Kd7 e6+ Kd6 Rc2 Ba2 Rc7 Bf2 Bb6 Ra5 Ba7 Nc3 Ra8 Ba6 b8N B6c4 Nbc6 Nb1 Bb8 Ra7 Ne5 Rh3+ Kg4 Rd3 Rf1 Rd1 Kf3 Bab3 Rg1 a2 Rg3 a1N Qe3 Nh8 Rg6 Ba2 Rh6 Nc2 Rf6 Rb7 Ra7 Rf1 Ra6+ Rb6 Qe1 Nce3 Rf7 Ng2 Rf6 Ne8 Rf7 Ng6 Rf6 Bh6 Rf8 Neg7 Rfc8 Ng3 N5c6 Bg5 Rf8 Nh8 Ng6 N3f5 e7 Rb2 e8Q Rb7 Q8e3 Ra7 Nge7 Ng6 Rcc8+ Kd7 d6 Bf6 Ne5+ Ke6 Rc7 Bg5 N7c6 Kd5 d7 Be7 d8Q+ Bd6 Qf6 Bb4 Nf7 Bb5 Qd6+ Kc4 Ne7+ Bc5 Nd3 Kb3 Nd5 Kc2 Nfe5 Bbc4 Nc1 Bb4 Q3d2+
1nKnk3/4bN2/R1Q1BPQ1/Pr2q1n1/1b3qN1/1R3b1n/b2Q3P/RN3q2 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 Nd7 g4 Nb8 b4 axb4 f6 Kd7 f7 Ra5 Ba3 Ra6 Bc1 Ra8 f4 b5 g5 h6 f5 Nf6 Bb2 Ng8 Be5 Ra4 Bf4 Ra6 Be3 Rf6 gxf6 Bb7 Bf4 Bc8 Bg5 hxg5 Kf2 c5 Kg3 e5 Kg4 c4 a4 b3 d4 b4 d6 c3 a5 c2 d5 c1Q Ne2 b2 Qd2 e4 Bh3 b3 Ra3 e3 Qc2 Rh5 Qc5 Nh6+ Kg3 g4 Kf4 g5+ Ke5 g3 Qb4 g4 Qc5 g2 Nf4 g1N Ng2 e2 Ne3 g3 Ng4 Be7 f8Q e1B f7 g2 Qg7 Qe8 f8R Bb4 Rf6 Bb7 Qc6+ Kd8 Ke6 Nf3 d7 g1N Qh7 Qf4 Qg6 Nf7 Ra1 Ne2 Re1 Neg1 Re3 Ba8 Na3 b1B Rc3 b2 Rb3 Ba2 Nb1 Ne2 Qa6 Kc7 d8N Neg1 Qc4+ Bc6 d6+ Kc8 d7+ Kc7 Nd2 b1Q Qc1 Qd3 Nb1 Qf1 Qc4 Nd6 Nf7 Nb7 Qa6 Qh8 Qa8 Be4 d8Q+ Kc6 Bg2 Nh3 Qd2 Kc7 Nd6 Kd8 Nf7+ Ke8 Qa6 Ne1 Qad6 Bf3 Qc7 Bd1 Bd5 Nf3 Qc6+ Kf8 Bc4 Nfg5+ Kd5 Be2 Rd6 Qb2 f6 Nd8 Re6 Bc3 Rd6 Bf3+ Kc5 Bb4+ Kb6 Qbe5 Kc7 Na6+ Kc8 Nb8 Qce4 Ke8 Ra6 Nde6 Bd5 Nd8 Be6 Qd6 Qe5 Ne4 Qec3 Rb5 Rb6 Neg5 Ra6 Qde5 Qc6+
1K3Q2/1n4bQ/N1NnbbB1/7P/2P1Pq1B/1p3bB1/rkNR3b/1n3Q1r b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 f5 gxf5 h5 d4 e5 fxe5 c5 dxc5 Qf6 a4 Qe7 Ra3 Qf6 Rg3 Qd8 Rg4 hxg4 Kf2 Ke7 Kg3 b5 Kf4 d5 h4 d4 c4 d3 c6 g6 e6 Kd6 a5 Kc5 Ke5 g5 e7 d2 e8Q b3 a6 Kb4 c7 b2 a7 g3 f6 g4 f7 g2 Nf3 g1B Na3 Kc3 Qe7 b1N Nc2 g3 Rh2 g2 Nfd4 b4 Nc6 Be6 c8Q Nd7+ Kd6 Bg7 f8B b3 e4 Bf6 Be2 Bgd4 Bh5 g1B Qf1 d1B Qh7 Ne7 Rd2 Bf3 Bg6 Qe8 Kc7 Nf5 Qd8 Bh2+ Bd6 Nc5 Bg3 Qf8 Qe8 Qh6 Qf8 Nb7 Ba3 Bg7 Be7 Nfd6 Bg5 Bdf6 h5 Kb2 B5h4 Rg8 Qe1 Qf4 Qf1 Rd8 a8N Rb8 Nb6 Ra8 Nd7 Ra1 Nc5 Ra2 Qe7 Rga8 Qf8 R8a5 Na6 Rd5 Re2 Rd1 Rd2 Rc1 Kb8 Rd1 Qf2 Rh1 Qf1
1B3rQ1/1pP5/r1n2P2/N2BqP2/b4R2/4Nr1b/1n1Q1n1k/1KBbNQb1 b - - 0 1 legal: proof: b4 a5 g4 axb4 e4 f5 exf5 c5 d4 h5 gxh5 e5 dxc5 Ra5 a4 Ra7 Ra3 Ra6 Rd3 Ra8 Rd4 exd4 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 g5 f4+ Ke4 h6 d5 c6 g4 a5 g3 h5 g2 h7 Nh6 a6 Qg5 c7 Qd8 c5 Qh4 c6 Qf6 a7 Qe5 Na3 b3+ Kb1 d3 Qd2 b2 Rh4 d4 Nf3 g1R Nc4 Bc5 Na5 Rg3 Ne1 Ng4 h6 Rf8 h8B Rf3 h7 Nf2 Bg2 Be6 c8Q Bb6 f6 Bh3 Bg7 Bc5 c7 Nc6 h8Q Bb6 Qd7 Bc5 Qd1 d2 Qg8 d3 Bh6 Be3 Qe2 d1B Qf1 d2 Bh1 Ba4 Qd6 d1N f5+ Ng4 Bf4 Bg1 Qd2 Ngf2 Bg2 Rae8 a8N Re6 Nb6 Rd6 Ka2 Re6 Nd5 Rd6 Ne3 b1B+ Ka3 Bbc2 Ka2 Nb2 Bh1 Bd1 Kb1 Qd5 Bg5+ Ke5 Rb4 Qd4 Bh4 Kf4 Bg5+ Kg3 Rc4 Qc5 Rf4 Kh2 Bg2 Rg3 Bd5 Rf3 Bh4 Qd4 Bg5 Qe5 Bh6 Re8 Bf8 Rde6 Bc5 Rf8 Bd4 Nd8 Bc5 Ra6 Ba7 Nc6 Bb8
1k3nbR/3BP2N/1r2r3/R5NQ/bR4q1/1rNp1Pqn/2P3Qq/3KQ1q1 b - - 0 1 legal: proof: g4 e5 d4 exd4 a4 g5 h3 b5 axb5 c5 Bd2 f5 gxf5 g4 h4 Bh6 Bc3 Bg5 hxg5 d3 Bd4 cxd4 Bg2 d2+ Kf1 Nf6 Bh3 Rf8 Kg2 Rg8 Kh2 Rh8 Bf1 Ng8 Kg3 Nh6 Kg2 Ng8 e4 a5 b4 d5 b6 Kd7 b7 Kc7 f6 h5 e5 g3 Kf3 h4 Ke2 d3+ Ke3 g2 f7 a4 f8R a3 g6 d4+ Kf3 a2 e6 h3 g7 h2 e7 Ra6 b5 Qd6 Qe2 d1Q Rd8 d2 Nc3 d3 Ke3 Rh6 Qf3 Be6 Qh5 Nf6 g8N Nbd7 Rb8 Qg4 Nh3 g1Q Ng5 d1Q Bh3 Qdf3+ Kd2 Nd5 Nf6 Rb6 Nfh7 Nf4 Rh8 Nf8 b8Q+ Kd7 Qa8 Kc7 Rb1 a1R Rb4 Qfg3 Qe4 Kc8 Qe1 Ra3 Kc1 Rb3 f3 Kb8 Kd1 Bg8 Na2 Re6 Nc3 Q1f2 Rg1 h1B Rf1 Bg2 Rg1 Ra6 b6 Qdd4 b7 Rab6 Rh1 Bf1 Rg1 Qfh2 Rg2 Qg7 Re2 Qgg1 Re5 Q4g3 Bf5 Bh3 Ra5 Qg6 Be4 Bf5 Bc6 Nh3 Bd7 Be4 Rd4 Bc6 Rb4 Ba4 Re5 Ka7 b8Q+ Ka6 Qd8 Kb7 Ra5 Qf5 Qde8 Qfg4 Qef7 Kc7 Qf4+ Kb7 Qd2 Kb8 Qg2
1NBRqqk1/pQ1PnbPr/1Q3B1Q/1bR2b1P/1bbq2R1/8/6K1/B4n2 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 d3 cxd3 Ra2 d4 Ra1 Na6 g4 h6 g6 Nc5 Nd2 Na6 Ndf3 h5 g5 Rb8 Ne5 Rb7 Ng4 hxg4 Rb1 Rd7 Ra1 Rd5 exd5 Rh3 Ne2 Rh4 Ng1 Rh8 Kf2 f5 h4 e5 c4 f4 b4 f3 d6 e4 c5 d2 c6 d3 h5 Nf6 g7 Kf7 g8R Bg7 c7 Qf8 b6 Nb8 b5 Be6 c8Q Bc4 b7 Nd5 b6 Bc3 d7 Bb4 Rh4 Nc6 b8B Nce7 b7 Ne3 Ne2 Rh7 Bb2 g3+ Kg1 g2 Ra5 Bb5 Qdc1 d1B Bf6 d2 Nd4 Bc2 Bbe5 d1B b8Q f2+ Kh2 Bb1 Qcb7 Bb3 Nc6 g1Q+ Kh3 B1d3 Rg4 Ba2 Bg2 Nf1 Ba1 e3 Qd6 e2 Nb8 e1Q Qdb6 Bbc4 Rc5 Bf5 Bc6 Qe5 Bb5 Qe2 Ba6 Bab3 Qh1 Qe5 Bc8 Qd4 Qhb7 Qg2+ Kh4 Qge4 Kh3 Qe6 Kg2 Bb5 Rg6 B3c4 Rh6 Kg8 g6 Qef7 g7 Q7e8 Rhg6 Bce6 Qh6 Bf7 Re4 Nh2 Rgg4 f1B+ Kh1 B1c4 Kg2 Nf1 Qe3 Ng6 Ree5 Qd8 Re8 Qe7 Rd8 Qee8 Qc1 Ne7 Qh6
2bNqN2/1qrR4/6p1/B2N2PR/1P1n1bQP/1b2R2n/qQ1Knk2/4Q2n b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 a3 b5 b3 b4 axb4 Qe7 Ba3 Qd6 Bc1 Qd8 g4 h5 g5 a5 Bh3 a4 Bf5 a3 Bg4 Ra4 bxa4 hxg4 e4 Ke7 d4 Kd6 h4 f5 a5 c5 a6 f3 a7 f4 a8N f2+ Kd2 f1Q Qf3 c4 Bb2 g6 Rh3 g3 Qg2 f3 Nc7 f2 Nc3 a2 Nge2 Ne7 Ne6 Nf5 N2f4 Qh1 Rd1 Qe8 Nd8 a1Q Nfe6 f1B Qg1 g2 Re3 Bg7 Nf8 Rh7 Bc1 Nc6 e5+ Ke7 e6 Kd6 e7 Ng3 Qh2 g1N Qh3 Be2 Qg4 Be5 Bb2 Nh3 Bc1 Qf7 e8Q Bf4 Qe4 Qf3 Qc2 Qe8 Qb2 Kc7 d6+ Kb6 d5 Rc7 d7 Qa2 d6 Nd4 Rf1 Nh1 Nd5+ Kb5 Rd1 Qfe4 Nde6 Bd3 d8Q Bc2 d7 Bb3 Qe7 Qf3 d8R c3+ Kd3 c2 Kd2 Kc4 Rd7 Qe4 Nd8 Qf3 Qee6 Qe4 Rh7 Qf3 Rh5 Qg2+ Ke1 Qe4 Bd2 c1N Bc3 Nce2 Kd2 Nc2 Be5 Ncd4 Qg1 Qf3 Qeg4 Qg2 Nf6 Qb7 Qe1 Rf7 Bc7 Rg7 Ba5 Rc7 Ne4 Kd5 Qg2 Ke5 Nc3+ Kf5 Qe4+ Kg4 Nd5 Ne6 Qf3+ Kf5 Nc3 Bd5 Kd3 Bb3 Qc6 Kg4 Qd7 Bd5 Kc2 Bc4 Rd6 Bd5 Kd2 Bb3 Qc6 N6d4 Rd7 Bg3 Qe6+ Kf4 Re4+ Kf3 Nd5 Bf4+ Re3+ Kg2 Qb1 Kf2 Qg4 Qa3 Q1a1 Qa2 Qe1#
2r1rR1Q/1nPN3K/1pP1qRQ1/3n2P1/q5R1/N2NrB2/1r1n1b1k/2n3Q1 b - - 0 1 legal: proof: d4 a5 e4 g5 b4 axb4 e5 c5 dxc5 f6 exf6 Ra3 Bb5 Ra4 Bf1 Ra8 g4 b6 f4 Ba6 f5 Bb5 Bf4 gxf4 h3 Be2 g5 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kd3 e5 Ke4 h5 a4 d5+ Kd3 h4 c4 f3 c6 f2 a5 e4+ Kd4 e3 Ke5 d4 c5 e2 a6 e1R+ Ne2 h3 c7 b3 a7 b2 c6 h2 Qa4 d3 Qe4 d2 Qf4 d1Q Qc1 Bc5 Bg2 f1N Rg1 h1N Na3 b1R Bf3 Na6 Qc2 Rc8 a8Q Be3 Nc1 Nd2 Nd3 Ne7 Qb8 Nd5 g6+ Kg8 f7+ Kg7 f8N Kh6 g7 Kg5 g8Q+ Kh4 f6 Kh3 Kf5 Qd7+ Kg6 Nc5 f7 Kh2 g5 Nf2 Qc1 Qa4 Rg4 Rb2 Kg7 Qf5 Nd7 Nb7 f8R Qe6 Qf7 Bc5 Qg6 Re3 Qd1 Rg8+ Kh7 Bd4 Rf6 Rge8 Rf8 Bc5 Rc1 Bd4 Rc4 Bc5 Rcf4 Bd4 R4f6 Bc5 Nf4 Nd3 Qa8 Nc1 Nd3 Bd4 Qg1+ Kh3 Qa7 Re4 Kh8 Qc4 Nc2 Bf2 Rff4 Rb1 Kh7 Re3 Qa1 Qa4 Na3 Rb3 Qh8 Rb2 Qe1 Kh2 R4f6 Ncb3 Qd1 Nc1 Qg1+
kB3b1q/2r3N1/KnQnR1Pp/1Rq2B1P/p1P4Q/8/1bn5/1rQrBR2 b - - 0 1 legal: proof: e4 c5 b4 b5 bxc5 d5 a4 dxe4 axb5 e3 f3 Bg4 Ra5 Bd7 Ra1 Bc8 Ke2 g5 Nc3 e5 Nd5 Bb7 Kd3 e2 Kc3 e4 Nf4 gxf4 Ra3 e3 Ra1 Be4 fxe4 Qc8 Ra4 Qd7 Ra1 Qd8 Kc4 Kd7 g4 Kc7 d4 Kb7 h4 e1R b6 f5 Kb5 a5 c4 a4 c6+ Kc8 c7 Kb7 h5 f3 d5 f2 g5 h6 e5 f4 e6 e2 g6 f3 d6 Ra7 c8Q+ Ka8 e7 Rb7 e8R Ne7 d7 Nf5 Nh3 Rc7 Re6 Nd6+ Ka5 Qf6 d8Q Qg7 Qd2 Rd1 Nf4 e1B Bd3 f1N Bf5 f2 Qh4 Ne3 Rb1 f1Q Rb5 Qf2 Rf1 Nc2 Qe8 Qc5 b7+ Ka7 Qc8 Nd7 b8B+ Ka8 Ka6 Nb6 Qd7 Rh7 Qc6+ Rb7 Qc3 Qh8 Bd2 Rc7 Qe3 Bf2 Be1 Bg1 Qc1 Bd4 Rf6 Be5 Ne6 Bb2 Ng7 Bc3 Qa1 Nbc8 Qc1 Bd4 Ra5 Be5 Qd7 Rb1 Rb5 Nb6 Re6 Bb2 Qc6+
r2Q1K2/R6b/2PP4/B2R3b/2b1QRQn/prpP2n1/1B1nqqN1/2kB4 b - - 0 1 illegal: No proof kernel
8/3RrrN1/3pP3/rq3N1K/1kBq2p1/1P1n4/BP1qQQ1B/n1q1bNQ1 b - - 0 1 legal: proof: f4 c5 g4 b5 d4 e5 fxe5 cxd4 Kd2 b4 Ke1 b3 axb3 Bc5 Kd2 Bd6 Ke1 Bf8 Kd2 h5 Nf3 f5 Ke1 f4 Ng1 Bb7 Ra6 Be4 Rg6 Bf5 gxf5 Be7 Rg5 Bf8 Rg4 hxg4 Kf2 Ke7 c4 g5 h4 a5 e4 d3 c5 f3 Kg3 f2 h5 d2 e6 a4 e5 a3 h6 a2 c6 a1Q h7 Ra5 c7 Qe8 c8B Na6 Nf3 Nc5 Nd4 Nh6 Qe2 d1Q Bf4 Nd3 Nd2 Qac1 Rh5 Rg8 h8Q Rg7 Qg8 Rf7 Ba6 Qb8 Bh3 f1R Bc4 Re1 Nf1 Qdd2 Rh4 Qb5 f6+ Ke8 Qg6 Bb4 e7 d6 Nf5 Kd7 e8N Kc6 Neg7 Kc5 Bg2 Bc3 Be4 Kb4 Rh3 Nc5 Bb1 Nd3 Qd1 Re2 Ba2 Re4 Qe2 Re3+ Kg2 g3 Rh5 Re4 Kh3 g2 Bh2 Ng4 Rh7 Ne3 Kg3 g1Q+ Kh3 Rd7 f7 Nc2 f8Q Na1 e6 g4+ Kh4 Qd4 Kh5 Rf4 Qh6 Rf3 Qhe3 Re7 Q3f2 Q2f4 Qg1 Be1 Qf6 Qfe3 Qh4 Qed2 Qhf2 Ne5 N5g3 Rff7 N3f5 Nd3 Rh8 Qb7 Rd8 Qb5 Rd7
r1Q5/1B2knB1/1P1q2rp/2nrBP2/3pQ1P1/2q1RK2/1R3RNr/2b2nQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 a4 cxd4 axb5 g5 f4 Kf7 f6 Ke8 g4 Qc7 f5 Kf7 Nc3 Qb7 Nce2 Qb6 Nf4 gxf4 Bd3 Bb7 Bf1 Bf3 h3 Ke8 g5 Bg4 hxg4 Qd8 Kf2 e5 b4 d5 c4 a5 f7+ Ke7 c5 d3 c6 f3 b6 d2 c7 a4 c8Q e4 b5 a3 b7 a2 g6 Qd7 g7 Na6 b8R Nc5 Ne2 Qd6 Rh2 Nh6 Nf4 e3+ Kg3 f2 g8Q e2 Bb2 e1Q Bg2 f1N+ Kf3 Ra6 Be5 Rb6 Rb1 a1R Rb3 Ra8 Re3 Rba6 Qb1 d1R Bh1 Bg7 Rf2 Qc3 Ng2 Bf6 Qg6 Bg5 Qe4 Rd2 Qh5 d4 Qh2 Rd8 Qg1 Rda2 Rd3 Bc1 f8B+ Kf7 Bfg7 Ke7 Rc2 Nf7 Rf2 h6 Rb6 Qc6 Re3 Rd5 Rb7+ Qc7 Ra7 Rg6 b6 Rc2 Ra2 Qd6 Rb2 Qa3 Ne1 Nd3 Kg2 Raa5 Qf4 Ra8 Rd2 Nc5 Kf2 Qb3 Be4 Qc3 Kf3 Nd7 Rh2 Rb5 Bb7 Rd5 Qe4 Nc5 Rf2 Ng3 Rf1 Rh2 Rff2 Nf1 Ng2
4k1b1/r1R5/1K1n3P/1QppBRN1/Q1p3q1/2bnBP2/RP6/r1BrQq2 b - - 0 1 illegal: No proof kernel
K2B2N1/Pn2NrpP/n4Nn1/2pqk1Q1/3rp1q1/Q2QqB2/1P3R1b/5B2 b - - 0 1 illegal: No proof kernel
N1Q1B1Qq/p1B2P2/1BKNnn1r/b6p/Q4Pb1/P2n1Rb1/p1N3k1/6b1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 g5 h4 d5 cxd5 gxh4 a3 b4 Ra2 b3 Qg4 bxa2 b4 Nf6 Qd1 Ng8 b5 Na6 b6 Rb8 b7 Ra8 bxa8Q Nb8 Ke2 Kd7 Ke3 Kd6 Ke4 h5 g4 e5 d4 c5 f4 c4 g5 h3 g6 c3 f6 c2 g7 h2 f7 Bb7 Nc3 Qg5 Be3 c1B Nge2 Qd8 Na4 Rh6 Nb6 Nd7 Qc8 Bd2 Qa4 Ba5 Na8 Bc6 Rg1 h1N Rg3 Qe8 Rf3 Nf2+ Kf5 Ngf6 g8Q Nd3 Bh3 Nh7 Ke4 Bg7 Bf5 Ndf8 Bd7 Ne6 Bf2 Qd8 Be8 Bd7 Be3 Bf8 Bg1 Qf6 Be3 Qh8 Bf2 Ke7 d6+ Kf6 Kd5 Kf5 Bg1 e4 Be3 Bb5 d7 Bc5 d8N Bd7 Nb7 Bcb6 Kd6 Nf6 d5 Bd4 Bf2 e3 Bg1 Bdb6 Nd4+ Ke4 Nc2+ Bd4 Bf2 e2 Bg1 e1B Be3 Ng7 Bf2 Be6 Kc6 Bg4 d6 Ne6 Be3 Bg3 d7 Nf8 d8B Ne6 Qb3 Bc5 Bc7 Bcb6 Bd4 Bc5 Qa4 Bcb6 Rf1 Bc5 Bf2+ Kf3 Nd6 Kg2 Bd4 Bcb6 Rf3 Bc5 Ba1 Bcf2 Bd4 Bg1 Bdb6
q3B1RQ/1nn1ppr1/N1r5/Nb2R2Q/k3Kp1R/1p1r2Q1/P1P4P/b5N1 b - - 0 1 legal: proof: d4 a5 g4 d5 f4 c5 dxc5 g5 e4 a4 exd5 a3 bxa3 h6 a4 Bd7 a5 Be6 Bb2 Bc8 Bf6 gxf4 g5 Qb6 g6 Qd8 Bg5 hxg5 Ke2 Kd7 Kd3 b5 c6+ Kd6 g7 Kc5 a6 Kb4 c7 g4 d6 g3 d7 g2 a7 Nh6 g8R Nf5 Na3 Qe8 d8Q Bd7 c8Q Bg7 Qh5 Na6 Qc3+ Ka4 Re1 b4 Nc4 b3 Na5 Nd6 Re5 Rc8 a8N Rc6 Nc7 Nb7 Ke4 Rhh6 Qa8 Rhd6 Qg3 Rd3 Qd8 Bf6 Rg4 Qf8 Rh4 Qh8 Qdg8 Bg7 Qgh7 Qa8 Qh8 Be8 Be2 Bf6 Bg4 Bg7 Bd7 Bf6 Nd5 Nc7 Nb4 Bg7 Na6 Bf6 Nf3 Bg7 Re1 g1R Rg5 Rg2 Ng1 Be5 Rg8 Ba1 Qf2 Rg7 Qg3 Nd8 Kf5 Nb7 Re5 Qd8 Ke4 Qa8 Bh3 Rcg6 Be6 Bb5 Bd7 Rc6 Be8
r5qQ/P1Pn1p2/p3Q3/R3Rrp1/1N1K2N1/2QbPp2/2br2N1/3knR1B b - - 0 1 illegal: No proof kernel
2rR1Q2/qN2bq1R/7n/1PPR4/bN2K2B/k1Pp1Q2/p2N1p1p/n2Q2b1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 fxe4 d4 g6 dxc5 Bg7 f5 Kf8 f6 Ke8 Be2 Bh6 Bg4 Bf8 h4 a6 Bf5 gxf5 g4 Nc6 g5 Nb8 g6 Qb6 Qg4 Qc7 Qd1 Qd8 Rh3 a5 Rh2 Ra6 Rh1 Rd6 Be3 Rd2 Bg5 Rg2 Bc1 Rg5 hxg5 Bb7 Nc3 Ba6 Nb1 Bc8 Ke2 e5 Ke3 d5 b4 Kd7 c3 h5 b6 Kc6 g7 Kb5 b7 a4 g6 d4+ Ke2 d3+ Ke3 f4+ Kf2 e3+ Kf3 e4+ Kg2 a3 f7 a2 Ne2 h4 Qb3 Qe8 Ng3 e2 Bd2 e1Q Nf5 e3 Kf3 h3 Qd1 Be7 f8Q e2 Ke4 f3 Bg5 Nc6 b8N Bd7 Bh4 Nd4 Nd2 Qf7 Na6 Nh6 g8Q Nb3 g7 Ka4 Nd6 Ka3 Nb7 Ba4 b5 Qf2 Nb4 e1B Rc1 Na1 Qh7 Qg2 g8R Qgg7 Qf5 Bf2 Rg1 Qh7 R1g5 Bg1 Rh5 f2 Rhg5 Qhg7 Qff3 Qgf6 Rd5 Qb6 Qg7 Qa5 Rgd8 Re8 Qf8 Qa7 R8d7 Rb8 Rd8 Rc8 Qde2 Bh2 Rh1 Bg1 Rh2 Qb8 Qd1 Qa7 Rg2 h2 Rg7 Qa8 Rh7 Qb8 Na6 Qa7 Nb4
2R2RK1/pQ1b1Bp1/QrnrP1pp/2k1BqPP/8/r4q2/2B3Q1/Rr1N4 b - - 1 2 legal: proof: a4 b5 axb5 c5 b4 cxb4 d4 Qb6 Nd2 Qa5 Nc4 Qc7 Ne5 Qd8 Ng6 fxg6 e3 d5 Ke2 e5 Kd2 Nd7 Ke1 e4 Bd2 Ne5 Bc1 Bc5 dxe5 d4 Ba3 d3 Bc1 Bd4 exd4 Qf6 Bb2 Qd6 Bc1 Qd8 Kd2 Kd7 Ke3 h6 Kf4 b3 g4 e3 c4 b2 h4 b1Q c5 d2 c6+ Kc7 d5 Kb6 g5 e2 h5 e1R d6 Nf6 c7 Bh3 c8B Ng8 d7 Bf5 Bc4 Qd3 Qc2 d1R Ne2 Rh7 Nc3 Nf6 Bf7 Rh8 Bb2 Qe8 d8Q+ Kc5 b6 Rb8 b7 Qh3 Qdd3 Qe6 Qa6 Rc1 Nd1+ Kb4 f3 Qd5 Qg2 Ra8 b8Q+ Qb5 Qbb7 Bg4 Bf5 Rhd8 Bc2 Bd7 e6 Rf1 Be5 Nd5+ Ke4 Kc4 f4 Rf3 f5 Ra3 f6 Ne7 Rf1 Rac8 Rf3 Kb4 Rc3 Rb8 Rc8 Rb1 Kf4 Nc6 Ke4 Qb6 Kd5 Qb5+ Kd6 Kc4 Bg8 Qc3 f7 Qf3 f8R Kb4 Qa8 Qbf1 Bf7 Rb6 Qb8 Qf5 Qbb7 Q1f3 Re8 Na5+ Ke7 Nc6+ Kf8 Kc5 Kg8 Rc3 Bc7 Ra3 Rf8 Be8 Qge2 Rd6 Qg2 Bd7 Bb8 Rd4 Bg3 Rd6 Be5
1nR1B3/1r1pp3/1NB1kP1q/1r1p1pQ1/BRR5/5P2/2Q1qnpP/2K3bQ b - - 0 1 illegal: No proof kernel
B1QQ2NB/2P2K2/q1p5/1nR1r1pN/1p2q1Q1/B2p1pP1/1P5b/r2b2Nk b - - 0 1 legal: proof: c4 a5 c5 Ra6 c6 Ra8 d4 Na6 Bd2 Nc5 d5 Ne6 d6 bxc6 Bb4 c5 Qc2 c6 Qd1 Nc7 dxc7 c4 f4 h5 Qc2 e5 fxe5 h4 Qh7 h3 a4 Qg5 Ra3 Nf6 Rb3 Ng8 Ba3 Qd8 Rb4 axb4 Qxh3 Ne7 Qh7 Ng8 Kd2 Ke7 Ke3 Ke6 Ke4 g5 h4 d6 h5 f6 h6 c3 a5 c2 a6 c1Q a7 Be7 g3 Qd7 Nc3 Qe8 Nd5 f5+ Kd4 f4 e4 f3 Nf6 d5 Ba6 Qf1 Bb7 Qa6 Nh5 Nf6 Rh4 Rb8 Ba8 Rb5 Rf4 Qg6 Rf5 Ne8 Qg7 Bd7 h7 Nd6 Qf8 Ra5 Qc8 Rd8 h8B Nb5+ Kd3 d4 Kc4 Bf6 Kc5 Re8 Qd8 d3 Qc8 Ke7 e6 Bc3 e5 Bd2 Rf4 Be3+ Rd4 Qe4 Qd8+ Kf8 e7+ Kf7 e6+ Kg6 Qc8 Kf5 Qd8 Nc3+ Kd6 Kg4 Rc4 Re5 Rc5 Bf2 Bf6 Rh8 e8Q Nb5+ Ke7 Be3 Qg8 Be8 Qd4 Bf7 Qgd8 Bg8 Ke8 Rh6 e7 Bb3 Kf8 Bd1 e8N Rh7 Bh8 Rhe7 Ne2 Kh3 Ng1+ Kg2 Nef6 Kh1 Ng8 Re8+ Kf7 Bf2 Ne2 Bg1 Qc8 Bh2 Ng1 Qh4 Qdg4 Re1 Bb7 R8e5 a8Q Rf1 Qgf5 Qe4 Qg4 Be2 Qd8 Ra1 Qac8 Bd1 Ba8
1rrk1Q2/1R2nqB1/1P2Q2N/4np2/B2r1q2/1qQbB3/nP2bP2/R4RbK b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 e4 h5 g4 f5 b6 a5 g5 c5 e5 h3 g6 a4 g7 c4 e6 c3 e7 c2 Qg4 a3 Bh6 c1N Bd2 h2 Be2 a2 Kf1 d3 Kg2 h4 Bf3 Qc7 Qg5 Ba6 Rb1 a1R Qf6 Na2 Nh3 Nc6 Rhf1 Rb8 Ng5 h1B+ Kg1 h3 Nf7 Bb5 Be3 d2 Bh5 d1Q Qc3 Be2 Nh6+ Kd7 e8R Qb3 Bf7 Be4 Re7+ Kc8 Rbe1 Rd1 Rd7 Rd3 Ra1 Rd4 Re7 B4d3 d7+ Kb7 d8B Kc8 d6 h2+ Kg2 Qa7 Rd7 Qc7 Bf6 h1Q+ Kg3 Qh4+ Kg2 Qg4+ Kh1 Be7 Be5 Bh4 Bf6 Bg3 Re7 Qf4 d7+ Kb7 d8Q Ne5 Qd7 Bh2 Qe6 Bg1 Rd7 Kc8 Bg6 Ne7 Bh5 Rf8 g8Q Nd5 Bg7 Re8 Qf8 Qcc4 Qef6 Ne7 Rb7 Red8 Qb4 Qe6 Be8 Qf7 Qa5 R8d5 Qe6+ Kd8 Qe1 Rc5 Qc3 Rcc8 Ba4+
1br1BQK1/r1BNbN2/1n2N2P/Q3B2p/qb5P/rb3R2/1nkbnQ1P/8 b - - 0 1 illegal: Other
2b4N/pN6/3B1nnQ/bP3Qb1/PPbr4/N2k1B2/1KRnrr2/3Bbq1Q b - - 0 1 legal: proof: b4 e5 a4 b5 c4 h5 cxb5 f5 g4 hxg4 Ra3 e4 Rg3 e3 dxe3 f4 e4 fxg3 e5 Rh7 Nh3 Rh6 Ng1 Rh8 Kd2 Kf7 Kc3 Kg6 f4 Kf5 h4 Ke4 e3 g5 e6 d5 e7 c5 e8N g2 h5 c4 f5 d4+ Kc2 d3+ Kc3 g3 h6 d2 f6 g4 h7 Bc5 f7 Qf6+ Kc2 c3 f8Q Bb6 Rh4 Nd7 Ne2 g1N Bh3 g2 Nf4 g3 Qe2 Nf3 Bg4 g1R Qe1 g2 Qf7 Nde5 Na3 Ng6 Rh2 d1B+ Kb1 Be2 Nd6+ Ke5 e4 Kd4 e5 c2+ Ka1 Bc4 e6 Ba5 e7 Nd2 e8B Rf1 Nb7 g1B Bd1 Bf2 Bc6 Rb8 Qee6 Be1 Kb2 Rf2 Bcf3 Qf5 Qf8 Nf6 Qh6 Rd8 h8Q Qh3 Qf5 Qf1 Rg2 Re8 Qh1 Ree2 Q8h6 Ke3 Nh3+ Kd4 Ng5 Ke3 Nf7+ Kd4 Qff4+ Kd3 Nh8 Ra8 Rh2 Rb8 Nd6 Rb6 Nb7 Rd6 Rg2 Rd4 Qf5+ Nde4 Bf4 c1B+ Ka1 Bcd2 Bd6 Bg5 Rh2 Ke3 Kb1 Nd2+ Kb2 Nb3+ Bc2 Rg2 Rh5 Red2 Kb1 Rh2 Bcd1 Ra2 Qd5 Kd3 Rh4 Rac2 Re4 Rhf2 Re2 Rc3 Rb2 Rcc2 Ra2 Rce2 Rc2 Nd2+ Kb2 Ne8 Qe6 Nf6 Qf5+
5NqB/QbNpK1b1/Qq6/QRnP2n1/3b3b/4RP2/1P1r3b/1Rkr1qN1 b - - 0 1 illegal: No possible last move, all moves rejected
3bN2r/P3Pb2/Nbq1p3/1rN1PR1k/B1K1R2r/2n1QQ1Q/1q1R4/2nnn3 b - - 0 1 illegal: No possible last move
1B2KRrQ/1pN2Brn/rP1kR3/P1b4q/B1qrP3/1bQ2n2/2Q5/2q1R1b1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 b4 Ra6 c4 Ra7 b5 Ra8 Na3 exf4 Nc2 d5 Nb4 axb4 cxd5 Qe7 Nh3 Qd7 Ng1 Qd8 Kf2 Ke7 Kf3 h5 Ke4 c5 Ke5 f5 a4 h4 d4 c4 g4 h3 e4 h2 g6 f3 a5 c3 g5 f4 g7 f2 b6 f3 g6 b3 Ne2 c2 Nf4 b2 Bb5 b1R Ne6 f1Q Ba4 f2 Bf4 c1B Qc2 Nf6 g8Q Nh7 g7 Rb4 Nc7 Be3 Re1 Qe8 Qc3 Qc6 d6+ Kd7 d5 Ra6 Rg1 h1Q Rg6 Rd4 Re6 Qc4 Kf5 f1R Kg6 Rf3 Kf7 Rg3 Qc2 Be7 Qf8 Rg4 g8B Bg1 Qg7 Q6b5 Bh2 Nc6 Qe5 Bf8 Qg3 Qb2 Qgc3 Qc1 Bg3 Kd8 d7 Bc5 Nb5 Rg6 Bb8 Qh5 Nc7 Rf6+ Kg7 Ne5 Bf7 Rf1 Rh6 Ke7 d8R Rf2 Rf8 Be6 Rf6 Nf3 Rh6 Qb5 d6+ Kd7 Rf6 Rg2+ Rg6 Kc6 d7 Kd6 d8Q+ Ke5 Qb1 Bb3 Qbc2 Qc4 Rg8 Nhg5 Rd6 Rg3 Kf8 Nh7+ Ke7 Rg4 Qf8 Rg5 Ke8 Rg7 Rh6 Rg6 Qg7+ Kd6 Rf8 Rg8 Qh8 Qh3 Rh5 R6g7 Re5 Qh5 Re6+
1RRQ3b/2B2Q2/rr2q1bn/p1q2Q2/P1R1nqN1/6nK/1kP3rP/B1r4B b - - 0 1 illegal: No possible last move
5bn1/PQ1n4/1rP1R2q/1bnN2rb/1QRQN1k1/p2q1b2/P2N1K2/5BRr b - - 0 1 illegal: No proof kernel
6R1/1n1R1K1k/2n4B/qnBBbpP1/R3PPNn/5Q2/bn4rQ/1qn3rQ b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Nd2 Nd7 Nb3 Rb8 cxd5 Ra8 d6 Nb8 d5 Nc6 Nd4 exd4 Bg5 Nb8 Bh6 Na6 Bc1 Nb8 Kd2 c5 Kd3 h5 Kc4 a5 b4 f5 f4 Kf7 e4 Kg7 g4 a4 g5 d3 d7 h3 b6 a3 b5 d2 d6 h4 Kd5 c4 Ke6 h2 b7 c3 b6 c2 Ba6 h3 Bd3 a2 Qf1 d1N Rb1 a1N Qe1 Ra2 Bb2+ Nc3 Bc4 Nb3 Ra1 Nc6 b8B Nba5 b7 Nge7 Nf3 Ng6 Ne5 Kg8 Qf1 Bg7 Ng4 Qb6 Bc7 Nb5 b8R Nb7 Qf3 Qa5 Rhd1 h1Q Bb6 h2 Bc5 Qf1 Be5 h1N Ra8 Rb2 Ra4 Nf2 Bc3 Rh5 Rd4 Kh8 Kf7 Kh7 d8Q Rh1 d7 Nd3 Qf8 Qb1 d8Q c1N Rd6 Bh6 Bg7 Rg2 Qd7 Nb2 Rd1 Rg3 Qd2 Rhg1 Qdg2 Bd7 Qh1 Bc8 Qd8 Nh4 Qd2 Bd7 Bgf8 Bg7 Qdh2 Be5 Bh6 R3g2 Rg8 Be6+ Kf8 Bc8 Bf7 Be6 Rd7 Ba2 Bd5+ Bg7+ Kf7 Bh8 Qd1 Be5 Qf3
R1rkN3/nr2Qq2/1nr1B2Q/p1Q3Kb/b7/1PBbRP2/P6b/1B3nnR b - - 0 1 legal: proof: e4 b5 d4 e5 h4 g5 hxg5 f5 c4 bxc4 Nd2 Nh6 dxe5 Ba3 e6 Ng8 e5 Bf8 Ne4 fxe4 Kd2 a5 Ke3 d5 Kf4 c5 g4 h5 g6 d4 g7 c3 b3 h4 e7 e3 g5 c2 g6 e2 Bh3 e1N Bb2 c1R Qe2 c4 Bg2 c3 Qh5 h3 Qh6 c2 Kg5 h2 Qh5 d3 Bh3 d2 Kf4 d1B Bd4 Ba6 Qh6 Qd5 Kg5 Nd7 Bf5 Rb8 Ne2 Ng2 Ng3 Nb6 Ne4 Bae2 Re1 h1B Rb1 Qe6 Nd6+ Kd7 e8R Ne7 g8Q Rb7 Qgh7 Ne3 g7 Nc6 Ra8 Na7 g8B+ Bg7 Bd3 Bc6 Qf5 Ba4 Be4 Bh5 f3 Be2 Bd3 Kc7 Bb2 Qd5 e6 Be5 e7 Bh2 e8Q Qe6 Rh1 Nf1 Bf7 Qd7 Be6 Qf7 Qfb5 Rf8 Qb4 Rh8 Qeb5 Rhb8 Ne8+ Kd8 Qbf8 Rc8 Ra1 Re1 Rd1 c1N Bb1+ Bd3 Bd4 Re2 Re1 Rc2 Re3 Rc6 Qbc5 Ne2 Bc3 Ng1 Qfe7+
NQ1B2r1/b1P1N1R1/2Pkqn2/b1Q1n1Q1/3n2p1/q2RK1Pr/4b2n/b1N3R1 b - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 b5 a4 e5 axb5 exf4 g3 h4 Bg2 h3 Bd2 hxg2 Be3 Ne7 Bc1 Ng8 Kd2 Ke7 b4 d5 e4 a5 h4 g5 c4 f5 c6 a4 e5 a3 c7 f3 h5 a2 b6 f4 h6 g4 b5 f2 h7 f1Q b7 d4 c5 d3 e6 f3 b6 f2 Nc3 Nf6 Qc2 Nbd7 b8Q Ne5 Ke3 d2 Nge2 Qd6 Rg1 Rg8 h8R Ba6 Rh7+ Bg7 b7 Qe1 c6 Qa3 Qf5 Rh8 Qg5 Kd6 e7 Bd3 Qa7 Rag8 b8N Bf8 Rf7 Rh3 e8Q Be7 Rb1 a1B Nd5 Bf8 Ne7 f1N+ Kf4 d1N Nd7 Bb5 Rg7 Nc3 Qeb8 Nh2 Nb6 Bd3 Be3 Nb5 Rb3 Nd4 Na8 Ba6 Nc1 Be2 Rh7 Bg7 Rd3 Bh8 Qab6 Bc3 Rg7 Ba5 Rf1 g1B Qb5 Bf2 Rg1 Qec3 Bd2 Qc4 Bc3 Qe6 Qc4 Be1 Ke3 Bb6 Ba1 Bea5 Bb2 Ba7 Qcb5 Qc4 Qc5+ Ke6 Nb6 Nef3 Qe8 Nb5 Na4 Nh7 Qb8 Qaa2 Nb6 Qa3 Rf7 Qca2 Be5 Bg7 Bd6 Ba1 Nf5 Nbd4 Na8 Nf6 Be7 Ne5 Bd8 Qd5 Ne7 Qc4 Qcb6 Kd6 Rg7 Qe6 Qc5+
4nr1q/b1B1bBRR/3NqpQB/1K3bPb/1P6/2qnr3/4QPkq/5RQ1 b - - 0 1 illegal: No possible last move
n1N4b/1K1Rp1pq/4BnQQ/1N2P2r/Q7/r1q4P/qrPn1R2/k2N1b1R b - - 0 1 illegal: Other
1k2r2n/4Q2b/R3N1r1/1KQnB2Q/2pPp3/2Rb2PR/2PqNb1r/r2N2r1 b - - 0 1 legal: proof: a4 b5 axb5 h5 e4 d5 g3 dxe4 Bg2 h4 f4 g5 fxg5 h3 Kf2 hxg2 Ke2 Bd7 Ke1 Bc8 b4 Kd7 Ke2 f5 h4 c5 g6 Kc7 g7 a5 h5 e5 h6 a4 h7 e3 Qe1 f4 Bb2 a3 Nc3 a2 Rh3 Na6 b6+ Kb8 b5 Nb4 b7 Nh6 g8R Nf7 Nd1 Nd5 Kd3 f3 Kc4 f2 Ne2 g1R Rg4 Rg8 h8Q f1B Qh5 Nh8 Rf4 Bf5 Rf3 Rg6 d3 Kc7 b8N e4 b6+ Kb7 Kb5 c4 Qf2 Bc5 Na6 Kc8 Nc7 Kb8 b7 Rg2 Nd4 e2 Nce6 e1R Ne2 Rh2 Be5+ Qd6 Qe3 Ba7 Qeg5 Bb6 Qe7 Bf2 Rb1 a1R d4 Qc7 Rc3 Qd6 N2f4 Bd3 Ne2 Rg1 Rb4 Qc7 Ra4 Qd6 Ra6 Qc7 Bg7 Qf4 Bf6 Qd2 Bg7 Rg4 Qc5 Bh7 Qe7 Rg6 Be5+ Nc7+ Kc6 Rb1 Ne3 Ra1 Rb6 Ka7 Nd1 Re8 Kc5 Nd5 Rd6 Nb6 b8Q+ Ka6 Kc6 Nd5 Qb4 Ra2 Qc5 Ra1 Kd7+ Kb7 Ra6 Nc7 Kd6 Kc8 Kc6 Kb8 Bf6 Nd5 Kb5 Rf8 Bg7 Re8 Be5+
4RQ1N/2NRp1n1/1rnQ4/p3q1N1/RP1b2KQ/Pb1nr1B1/n3nP2/4r1k1 b - - 0 1 legal: proof: e4 b5 g4 h5 c4 f5 exf5 d5 cxd5 hxg4 Bc4 bxc4 Ke2 Kd7 h4 Kd6 d4 a5 b4 c5 h5 g5 h6 g3 Kf3 g2 f6 g4+ Kf4 c3 f7 c4 h7 g3 Qd3 c2 Qe3 c3 Bb2 c1N Ne2 g1N Qd3 c2 Bc3 g2 Nd2 Bg7 f8Q Ra6 Qg3 Nh6 Qh4 Be6 Nf3 Rb6 Ng5 Nf5 Kg4 Nd3 Nf4 Ne2 Rhd1 c1N Bd2 Bg8 Nfe6 Nc6 Nc7 Qb8 Bf4+ Be5 Bh2 g1R+ Bg3 Re1 Rd2 Be6 Rd1 Rg8 h8N Rg6 Rd2 Bg8 Rd1 Re6 Rd2 Ng7 Rd1 Kd7 d6 Bf6 Rd2 Re3 Rd1 Bb3 d5 Bd4 Rd2 Qe8 Rd1 Kc8 d7+ Kb7 d6 Qb8 Nce6 Ka6 d8Q Kb5 d7 Qe5 Nc7+ Kc4 Qb8 Kc3 d8R Kc4 Rd2 Kc3 Re8 Kc4 Rb2 Kc3 Rbb1 Kd2 Qd8 Nef4 Qd5 Ke2 Qd6 Kf1 Rb2 Kg1 Rc2 Bc4 Rc3 Bf7 Ra3 Bb3 Ra4 Nfe2 a3 Na2 Rc1 Bf7 Rc5 Bb3 Rd5 Bb2 Qdf6 Bc3 Rd7 Bd4 Qd6
1qB3n1/r2q1RKQ/Br2k2Q/n1Pp2b1/p3b1N1/3qQ3/PR1P4/1qB2R1q b - - 0 2 legal: proof: e4 f5 exf5 g5 f4 c5 b4 Nh6 bxc5 Ng8 g4 h6 Nc3 gxf4 Ne4 h5 g5 Bg7 Nf2 Bf8 Ng4 hxg4 Ke2 Kf7 Kd3 b5 Kd4 a5 Ke5 d5 c4 b4 h4 g3 f6 b3 c6 a4 h5 f3 c5 b2 c7 b1Q h6 f2 h7 g2 Bc4 f1Q Rh4 Qd7 Nf3 g1Q Qb3 Qfd3 Nh2 Qh1 Ng4 Ra7 Ba6 Bh6 Qc3 e6 Qd4 Qb7 Qe3 Qa8 Rb1 Qb7 Rb2 Nc6+ Kf4 Na5 Ke5 Qb8 g6+ Kf8 g7+ Kf7 Rh2 Bg5 Rf2 Qhf1 Bb5 Qh1 Rf1 Ba6 Bc6 Bc4 Bb7 Bb3 Bc8 Bd1 Ba6 Bf3 Rc2 Be4 Rb2 Ke8 f7+ Ke7 f8R Bf6+ Kf4 e5+ Kg3 Bg5 c8B Ke6 R8f5 Ne7 Rf7 Re8 h8Q Ng8 Nh2 Re7 Kg4 Rb7 Kh5 Rb6 R1f2 Bg2 R2f4 e4 Kg6 Bf3 Ng4 Bg2 Qf2 e3+ R4f5 e2 Qh6 e1Q Qe3+ Be4 Kh7+ Nf6+ Kg6 Qeg1 g8Q Qgf1 Qgh7 Ng8 Qh2 Qb1 Kg7 Qfd3 Rf1 Re8 Bcb7 Rc8 Q2h4 Rc7 Bc8 Ra7 Q4h6+
1R5n/p1bB1Nr1/2kr1P2/Q1Bn1N1b/qP3r2/Pp1BrQ1K/2q5/4N1rQ b - - 0 1 illegal: No proof kernel
2Q1q1R1/p3qB2/P4B1n/1p1qkn2/Bn1RPr2/5b2/QP2nrQK/1R1Nb3 b - - 1 2 legal: proof: f4 c5 h4 e5 c4 exf4 Kf2 g5 hxg5 d5 cxd5 c4 Rh2 c3 Ke1 c2 Rh1 cxb1Q Kf2 Kd7 e4 Kd6 a4 f5 d4 h5 g4 f3 Kg3 h4+ Kh2 f2 g6 f4 g7 h3 a5 f3 g5 b6 g6 Nc6 a6 Qe8 Qa4 Bg4 Qa2 Nb4 Bb5 f1Q Ne2 f2 Ba4 b5 Rg1 Bf3 Nc3 Qbd3 Bg5 Rh4 Nd1 Nh6 g8B Rf4 g7 Qa3 Rb1 Qc4 Bf7 Qc5 Kg3 h2 g8Q h1N+ Kh2 Ng3 Bf6 Ne2 Qg2 f1N+ Kh3 Ne3 Kh2 Kd7 d6 Nef5 d5 Rd8 Qf1 Qd4 Rg8 Rc8 Qg1 Rc2 Qg2 Be7 Bg7 Bh4 Bf6 Kc8 d7+ Kc7 d8R Be1 d6+ Kc6 d7 Kd6 Rc8 Qd5 Rc4 Rd2 Rd4 Rc2 Be7+ Ke5 d8Q Qc3 Qc8 Qcc5 Bh4 Qce7 Rg7 Neg3 Rg4 Rf2 Rg8 Ne2 Bf6+
3BRN2/3r1q2/N6R/p1P2b1n/PrR4K/p1qbN3/b5Pb/1Qqn1QQk b - - 0 1 illegal: No possible last move, all moves rejected
2Q1R2q/bQ5r/RNb3K1/5p2/P1r2Npk/1rq1nN1P/3B1PR1/2q1Qr1n b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 Be4 Kd6 Bg2 Kc5 d6 Kb6 Bd5 exd5 Bh6 Kb5 Bc1 Kc6 Kd2 g5 Ke3 b5 a4 f5 h3 b3 h6 d4+ Kd3 Kd5 e4+ Ke6 e5 c5 h7 c4+ Ke2 g4 Nf3 d3+ Ke3 c3 Kf4 b4 Ba3 c2 Qe1 c1Q+ Nfd2 b2 Nc3 b1R Rh2 b3 Rh1 b2 Qe3 Na6 Bb4 Nf6 Kg5 Nh5+ Kg6 Nc7 Rf1 Bb7 Re1 Ng3 Nd5 Nh1 Nb6 Nd5 Nf3 Rc8 Bd2 Bc6 Rg1 Qc2 Rg2 Rf1 Qe1 Qc3 Rd1 b1R Rc1 Qh4 d8Q Rb3 d7 Bc5 Qc7 Ne3 Qb7 Rc7 d8N+ Ke7 Na8 Ba7 Ne6 Rc8 h8Q Rd7 Qg8 Qh8 Nf4 Rcc7 e6 Rd4 Qbc8 Rc4 Nb6 Rb7 Rb1 Rd7 Bc1 d2 Qb7 d1Q Bd2 Qdc1 Qgc8 Qhe5 Kh7 Kf6+ e7 Qb8 Kh8 Qa8 e8R Rh7+ Kg8 Ra3 Rb5 Rb3 Ra5 Qb8 Ra6 Qbe5 Nh2 Kg5 Kf8 Kh4 Kg8 Rh8+ Kf7 Rh7+ Kg6 Qh8 Nf3+
4Bbr1/1Q1R2Pk/2p5/2Rb1Q1b/2P2nNR/PNbq4/3Nrp2/n2KnQ1n b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 h6 g6 Qe7 g7 Qd8 g4 Bd6 g5 Be7 g6 Bf8 Bg5 hxg5 c4 Ra6 e4 d5 h4 b5 e6 f5 a3 d4 e5 b3 h5 g4 h6 b2 h7 b4 e7 f4 Ra2 d3 Ra1 b3 Bg2 d2+ Ke2 f3+ Kf2 g3+ Ke3 Nc6 Bf1 g2 Nc3 b1N Nb5 b2 Rh5 Na5 Be2 Bb7 Qf1 Nf6 g8N d1N+ Kf4 Nd2 g7 Kf7 e6+ Kg6 Nh6 b1B Nd4 Nab3 Rc5 Nf2 Ke3 Rg8 h8R Nh5 Ra2 Na1 Nb3 Nh1 e8Q+ Kf6 e7 Nf4 Qh5 Bg6 e8Q Re6+ Re5 f2 Qb5 Nf3 Rd2 Ne1 Nf3 Be8 Qh3 Kg6 Rd3 Be4 Kd2 c6 Rc5 Qd5 Rh7 Qf5 Rd6 Bd5 Kd1 Qd3+ Nfd2 Bf7 Rd8 Re7 Bg4 Re2 Qb7 Be8 Rd7 Bef7 Nf5 Be8 Rh5 Bef7 Nh6 Kh7 Rh4 Bh5 Re7 g1B Bd7 Ne6 Qf3 Bh2 Be8 Be5 Ng4 Bc3 Qf6 Nf4 Rd7 Nf3 Qe6 Ne1 Qf5+
N1k2Q2/1bBpn1QK/p2N2RB/5B2/3n4/1bnprNP1/P1rb1P2/1q2Q1r1 b - - 0 1 legal: proof: c4 e5 e4 g5 d4 f5 h4 b6 hxg5 Kf7 b4 Ke7 Nd2 exd4 e5 b5 cxb5 Kf7 Rb1 Ke8 Rb3 Qe7 Re3 Qd8 Re4 fxe4 Ke2 c5 e6 h5 g6 d3+ Ke3 h4 Kf4 e3 Kf5 a6 b6 e2 b5 e1R g7 h3 Kg6 h2 b7 c4 e7 c3 g3 c2 b6 Re3 Bh3 Nc6 b8B Nd4 b7 Qb6+ Bd6 Qb1 b8Q Rh5 Qb2 Bb7 Bf5 Rc8 Nc4 Rh8 Bd2 c1N Nf3 Nce2 Nb6 Rc2 Na8 Nc3 Qe1 Bd5 Bc1 Bb3 Bc7 Rh4 Bd2 Rhe4 Kh7 Re6 Rg1 h1B Bc1 Bg2 Rh1 R6e4 Rh5 Rh4 Qa1 Rh1 Rh6 Rg1 Rg6 Bh1 Nh4 Bb7 Nf3 Kf7 e8N Bb4 Qb2 Ke7 Qa3 Re5 Bh6 Re3 Be5 Kd8 Bc7+ Kc8 Qb2 Ne7 g8Q Na4 Qf8 Bd2 Qa1 Ndc6 Qe5 Nd4 Qeg7 Nc3 Nd6#
1b1K2B1/n1B1P3/2p2r2/NpP2Nq1/4b1Qn/p1P1NRBk/1Q3Q1q/1rn1q3 b - - 0 1 illegal: No proof kernel
k2b4/q1PK2P1/1R1R1B1r/4Bp2/1p4N1/pbQ2PnB/QRQ3n1/rr1qb3 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 g5 hxg5 dxe4 Nc3 Bh3 Na2 Bg4 axb5 Bf5 b6 Bh3 b5 Bc8 Nb4 cxb4 Ke2 Kd7 Ke3 a5 Kf4 e5+ Kf5 h5 c4 f6 g4 e3 d4 e2 c5 e1Q f3 e4 b7 a4 d5 h4 g6 e3 g5 h3 g7 a3 d6 h2 b6 Kc6+ d7 e2 Ke6 f5 g6 Na6 b8Q Qc3 b7 e1B Bh3 Nf6 g8Q Ng4 g7 Qe3+ Qe5 Be7 b8B Kb7 Bb2 B7h4 Kd6 Rh6+ Qge6 Qf2 Qc2 Ne3 Ra2 Ng2 Qec3 Ra7 c6+ Ka8 Ba1 Nc5 Rb2 Ba6 Bc7 Bc4 Bb8 Bb3 Bc7 Qb8 d8R Ne4+ Kd7 Qf1 Qd5 Ra5 Be5 Rc5 c7+ Rcc6 Qg8 Ng3 Qgc4 Ba4 Qa2 Bb3 Ne2 Bg5 Nd4 Rce6 Rg1 h1R Nc6 Bh4 Bf6 Qe2 Ne5 Qd1+ Q2d3 Bg5 Ng4 Re2 Be5 Rc2 Qdd2 Rc1 Qdd3 Rb1 Bf6 Bed2 Qdc2 Bh4 Re1 Bhg5 Re6 Be1+ Rd6 Rg1 Re8 Rf1 Re5 Qa7 Rb5 Bh4 Be5 Bd8 Rb6 Bd2 Qd4 Qe2 Bf4 Rbc1 Rb1 Rfd1 Qdc4 Be1 Bf6 Qd3 Rb2 Ra1 Qd4 Rdb1 Qdc3 Qd1 B4e5
qB6/3n2p1/B5p1/bK3P1R/2nrpBk1/1bP1NrP1/1Q2RQ1r/R1Q1n2q b - - 0 1 legal: proof: d4 b5 e4 c5 a4 cxd4 axb5 f5 exf5 Ba6 Nc3 Qc8 Nd5 Qd8 Nf4 Bc8 Ng6 hxg6 Ke2 Kf7 Kd3 Kf6 Kc4 a5 h4 e5 b4 e4 f4 a4 c3 a3 b6 d5+ Kb5 d3 h5 a2 b7 d2 h6 d4 h7 d3 g3 Nd7 b8R Nb6 Rh5 Nc4 Nf3 Be6 Nh4 Ra6 Rb7 Qa8 Ng2 Rc6 Qe1 d1Q Ne3 d2 Rb8 Qf3 Rd8 d1R Rd2 Qh1 Re2 Rcd6 Qd2 Rd8 Qb2 R1d3 Bd2 R8d4 Qc1 Ke7 f6+ Kd7 f7 Nf6 Qb2 Bd6 f8Q Bc7 Qc1 Ba5 Qb8 Ke7 f5 Nd7 Qf4 Kf6 Qf2 Ncb6 Qb2 Bb3 Qc1 Nc4 Qb2 Rf8 h8Q Re8 Qh6 Rh8 Nc2 Rh7 Bf4 Rf3 Ne3 Qg1 Rb1 a1N Rbe1 Nc2 Ra1 Qg8 Ka6 Ne1 b5 Qe8 b6 Qh1 b7 Qa8+ Kb5 Rh8 b8B Rh7 Rg5 Rh8 Qhh2 Rh7 Qhg1 Rh2 Rh5 Ng2 Rc2 Nce5 Rd2 Bd8 Be2 Ba5 Qgc1 Ne1 Bc4 Rh4 Re2 Rh2 Bd5 Nc4 Bfc7 Nde5 Bb7 Nd7 Rh7 Kg5 Ba6 Rh6 Bf4+ Kh5 Ng2 Kg4 Rh8 Rh4 Rh5 Rh2 Ne3+
2Q5/1pr1N2K/k4P1p/4Nnb1/1bR2q1Q/2qQN2B/1Pnp1B1P/n2Brr2 b - - 1 2 illegal: No proof kernel
3rnr1B/pbPb1r1N/k3nPQQ/P2pb3/1Q1RRp2/2K1b3/1B2q3/1B4R1 b - - 0 1 illegal: No proof kernel
1b2Kb2/8/2Q1Bp1N/R2b3P/1p1prP1n/bkNr1Rnq/1R1Q1P2/3Q1Nq1 b - - 0 1 illegal: No proof kernel
n2N3K/2N1p1RQ/Q2Rp2p/q2B1b1b/r2nP2r/1pPN4/r2b2RP/Qk6 b - - 1 2 illegal: No possible last move
1b1n1k1q/1Q4p1/rbB1B3/N2q1rPr/1Q3P1R/2Kp1p2/1p1R1P1n/1RQ1B3 b - - 1 2 illegal: No extended proof kernel
1R1bQ3/kp3pK1/nR3BbQ/r1N2bP1/nq1pP2p/2rP1Q2/2NN4/1R5q b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 a4 b3 axb3 e3 c6 Bb5 cxb5 Kf1 b4 Ke2 Be7 Ke1 Bf8 Kf2 h5 Kf3 d5 Kf4 Kd7 Kf5 Kc6+ e6 Kb6 a4 b2 g4 d4 c4 b3 e4 h4 c5+ Ka6 d3 Nf6 c6 Ng8 c7 Qd6 g6 Bg7 a5 Qb6 Qf3 Qd6 Nd2 Qa3 Rb1 Bd7 c8Q Qe7 Qc6+ Ka7 a6 Bf6 g7 Qb4 g5 Be8 e7 Bd7+ Qe6 Rh6 e8Q Bd8 Ke5 Rh8 Qh6 Nf6 g8N Nd5 Nf6 Bf5 Nd7 Bg6 Nc5 Nc3 Rh2 Na4 Rh1 Bc7+ Kf6 Bd8+ Kg7 Rf8 Qg4 Rh8 Ngf3 Rf8 Ne1 Rh8 Ra1 b1B Ba3 b2 Nc2 Ba2 Rhb1 Be6 Qf3 Bef5 Ra2 Kb6 a7 Na6 Raa1 Rc8 a8R Rf8 Rd1 b1Q Rb8 Ka7 Rh1 Qf1 Rb1 Qh3 Rhd1 Qh1 Rb2 Rc7 Rdb1 Rc8 Nd7 Rc3 Nc5 Qc4 Bb4 Qb5 Ba5 Qb4 Bc7 Rh8 Be5 Rf8 Bf6 Rh8 Qe6 Re8 Qc6 Re5 Qe8 Rd5 Ne6 Ra5 Nc5 Qa3 Rb5 Qb4 Rb6
1RR3Nr/B3p2p/Q3kb2/QN1npb1P/nq6/P4Q2/pP1rbR2/2q3NK b - - 0 1 illegal: No proof kernel
KNN3nR/2r1P3/p1p4Q/4P2q/b1Q4p/2N1p1bb/PRBnrR1Q/5qk1 b - - 0 1 illegal: No possible last move
KR1N2r1/2Qb2qk/3bpb2/Q1B1B2P/rpn1P2p/1n1p2B1/2QP3R/R5b1 b - - 0 2 illegal: No proof kernel
8/4pk1B/2P2R1p/qr2PR1r/QB1N1qpP/K1b5/2qb1pR1/nb1Q1QB1 b - - 0 1 illegal: No possible last move, all moves rejected
N1b2bB1/p5pQ/r2RN1P1/QQRpk3/R2r1b2/P2p2P1/1n1rNn1K/6n1 b - - 0 1 legal: proof: d4 e5 b4 exd4 e4 c5 bxc5 f6 g4 Qb6 e5 Kf7 e6+ Ke8 Bf4 Qb3 Be5 Qg3 hxg3 fxe5 f4 Ke7 Kf2 Kf6 Kg2 h5 c4 b5 f5 h4 e7 e4 e8Q h3+ Kh2 d3 c6 e3 c7 e2 c5 e1B c6 Na6 Nc3 Nh6 Nge2 Nf7 Qb1 Ng5 Na4 Rh4 Nb6 Nb4 a3 Rb8 Na8 Bd2 Qg6+ Ke5 f6 d6 f7 Rb6 Qh7 Bf4 Qb3 Ra6 Rd1 Ne6 g5 Nd4 g6 Rg4 Nc1 Ne2 Bg2 Ng1 Ne2 Bd2 Qc4 Rd4 Bd5 Bf4 Rd2 Nc2 Qa4 Ne3 Qa5 Nd1 Be6 Nb2 Bb3 Be6 c8R Bf5 c7 Bd7 Rd8 Bc8 Be6 d5 Rc2 b4 Rd6 b3 Rc5 Nd1 Qb5 b2 Qa5 b1R Qb5 Bb7 c8Q Nb2 Qc7 Rd1 Qd8 Bc8 Qda5 Be7 f8N Rd2 Rb6 Bd6 Bg8 Be7 Ne6 Bf8 Rd6 Be3 Rc4 Bh6 Ra4 Bf4 Qe8 Rd1 Nc1 Ne2 Qeb5 Rd2 Rf1 Ng1+ Kh1 h2 Ne2 Kf6 Rc1 Ke5 Kg2 h1N Kh2 Nf2 Rc5
BQ2N1k1/N1P1r3/1q1pp1N1/p1R3RQ/Rb1qPbb1/pK2nb2/n2P4/3Q4 b - - 0 1 legal: proof: b4 f5 a4 c5 g4 a5 h3 g5 Bb2 Ra6 Bg7 Rg6 gxf5 g4 h4 Rg5 Bc3 b5 hxg5 bxa4 b5 Nc6 Bb4 cxb4 Bg2 Nb8 Bh3 Bg7 Bf1 Bf8 f4 Kf7 c4 h5 b6 b3 c5 b2 g6+ Kg7 c6 d6 c7 h4 f6+ Kh6 g7 Kh7 f5 g3 f7 g2 b7 e6 f6 h3 Na3 b1Q Nf3 g1B Nh2 Qb6 Ng4 h2 Nb5 Nh6 g8R Bc5 Rg5 Bb4 Na7 Nf5 Bg2 Nc6 b8Q Bh6 f8Q Ba6 f7 Ne3 Qe8 Qf6 Ra3 Qg7 f8N+ Kg8 Qh5 Rh7 Rg1 h1B Rc5 Qd4 Ng6+ Kg7 Nf6 Bf4 Ne8+ Kg8 Be4 Re7 Rgg5 Bf3 Ra1 Bd3 Bd5 Bf5 Ra2 Nd8 Ba8 Nc6 Ra1 B5g4 Ra3 Nd5 e4 Ne3 Qe2 Nc2+ Kd1 Ne3+ Kc1 Be5 Qd1 Bf4 Rac3 a3 R3c4 Ne5 Kb1 Nd3 Ka2 Nc1+ Kb1 Nd5 Kc2 Na2 Kb3 Ne3 Nb5 Bc3 Ra4 Bb4 Na7
3NkB1K/1Rp1pb1Q/8/NP2B1Qr/p4qNr/2p1Q1p1/P1nbP2n/5r1B b - - 1 2 legal: proof: f4 b5 g4 h5 b4 d5 c4 dxc4 f5 g6 Na3 Bh6 Qa4 Kf8 Qxb5 Kg7 Qd7 Kh7 Rb1 Bf8 Rb3 Kg7 Rg3 Bb7 fxg6 Ba6 g5 Bc8 Rg4 hxg4 Kf2 f5 Ke3 a5 Kf4 a4 d4 c3 h4 g3 h5 Ra6 d5 Rc6 d6 Nf6 h6+ Kg8 g7 Kf7 h7 Ra6 Nh3 Rc6 Bg2 Qe8 Nf2 Qd8 Ng4 Rb6 Qe6+ Ke8 g8Q Rb5 g6 Bb7 Kg5 Re5 g7 f4+ Kg6 f3 Nc4 f2 Bh6 f1R Na5 Ref5 Qe3 Bd5 Bf3 Ra1 Rb1 Na6 Bh1 Rh5 Rb3 Bc4 Qd5 Re1 g8Q Rf1 Qdg5 Qa8 Rb2 Qf3 Rb1 Qf4 Qg7 Rg8 h8B Be6 Ne5 Ng4 Kh7 Nh2 Ng4 Bd5 Q7g6+ Bf7 Be5 Rg7+ Kh8 Rh4 Qh7 Rg6 Bhg7 Rgh6 Rb2 R6h5 Bh6 Nc5 Bhg7 Nb3 Rb1 Na1 Rb3 Bg8 Rb2 Nc2 d7+ Kf7 d8N+ Ke8 Bgf6 Bh6 Bg7 Bf7 Bf8 Nd4 Rd2 Nc2 b5 Ra1 Rd6 Rd1 Rb6 Rf1 Rb7 Qf2 Qf6 Bf4 Qd3 Bd2 Qe3 Qf4 Qg5
1Q1bb3/3rq1pr/1p2PNP1/R1R4b/k1BpRp2/n4pNn/1P1N1Q1K/1Q6 b - - 1 2 illegal: No proof kernel
1rB2n1R/2prp1kq/BpKR1B1b/3N3b/QPP1r2b/4P1Q1/RQ2r3/1n2b3 b - - 0 1 illegal: No possible last move, all moves rejected
Q1N5/1Q1pB3/1q1b1p1k/r1nn1BpR/b2P1Pr1/1qpRn3/1BQ1r1P1/6KR b - - 0 1 illegal: No possible last move, all moves rejected
2NqqN2/3q3P/8/r2NP2N/3kb1p1/1ppN3P/BRQ1K2R/r4R1r b - - 0 1 legal: proof: a4 a5 f4 e5 fxe5 d5 d3 d4 Bg5 h6 b4 b5 c3 axb4 cxd4 hxg5 a5 b3 d5 Ba3 Nxa3 b4 Nb1 Ne7 h3 Ng6 g3 Nh4 gxh4 b2 Qc2 Nc6 Qc1 Nd4 Qd1 Nf3+ Nxf3 b3 Ng1 Rh7 Bg2 Rh5 Bf1 Rh8 e4 Kd7 d4 f5 h5 c5 d6 Ke6 d7 g4 h6 g5 h7 c4 d5+ Ke7 e6 Kd6 e5+ Kc5 d6 g3 e7 g4 e8N f4 a6 f3 a7 g2 Ng7 f2+ Ke2 Bb7 Rh2 Qf8 d8N Rc8 a8N Qe7 d7 Qf7 Nc3 b1Q Nd5 c3 Nf3 g1R Nh5 Qe8 Ne6+ Kc4 d8R Qf5 Qc2 Rh1 Ne1 Rc5 Nd3 Ra5 Nf8 Kd4 Nab6 Qfd7 Nc8 Rg8 Rc1 Rg6 Rb1 Rga6 Rb2 Ra1 Bg2 R6a5 Be4 Ba8 Bf5 Bc6 Ndf6 Be4 Nd5 Qc7 Rd7 Qcd8 Ra7 Kc4 Rf7 f1Q+ Ke3 Qf4+ Ke2 Kd4 Bg6 Qh6 Rf1 Qg7 Nc5 Bg2 Qd2+ Kc4 Bb1 Be4 Qc2 Kd4 Nd3 Qgd7 Ba2
k3b2R/rB1B3n/B2r4/1N3n1r/RB2PbP1/qr4Q1/P3b2r/2R1KB2 b - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 g5 b4 d5 cxd5 c5 bxc5 a4 h4 a3 hxg5 Nd7 d4 Nb8 Be3 Kd7 Nd2 Ke7 Nc4 Ke8 Nb2 axb2 Rc1 b1R Rc2 Ra1 d6 Qxd6 d5 Qd8 g4 Kd7 d6 Kc6 d7 f5 g6 h5 g7 b5 e6 Kb7 e7 b4 e8B f4 Bf2 h4 e4 h3 Rd2 h2 Rb2 b3 Kd2 f3 Qc2 Qa5+ Qc3 Rh5 d8R Nh6 g8B Nf5 Be3 f2 Bgc4 Bd7 Ne2 Bd6 Bg5 Ra7 c6+ Ka8 c7 Qa3 c8B Bf4+ Qe3 Rb1 Nc3 Rd1+ Ke2 Rd6 Qg3 Ba4 Rd2 b2 Be7 b1R B4a6 Nd7 Rd4 Rb3 Nb5 Nf6 Bed7 Nh7 Rg1 h1R Rh8 R1h2 Kd1 Rb6 Bb4 Re6 Bc4 f1B Ke1 Rd6 Bd3 Bg2 Bf1 Bf3 Rg2 Rhh6 Rc2 R6h5 Rc1 Be2 Nc3 Bc6 Nb5 Bh6 Bd2 Bf4 Ra4 Bd5 Bc3 Bf7 Bb4 Be8 Bcb7+
5B2/1NnN1NN1/nb1p3b/p3N2K/r2q1P1R/1q6/Rk2PqQP/6Rn b - - 0 1 legal: proof: d4 b5 a4 a5 axb5 e5 f4 c5 fxe5 cxd4 Nf3 f5 Ng1 Ra7 Bh6 Rc7 Bc1 Rb7 Nc3 h5 Qd3 f4 Nb1 f3 Qd1 Rb6 Kd2 Rf6 exf6 f2 Qe1 Bb7 Qd1 Bf3 gxf3 Qc7 Bh3 Qd8 Bg4 hxg4 c4 Kf7 b4 Ke6 b6 Ke5 f7 f1Q b7 g5 c5 g3 b5 d3 Ke3 g4 c6 d2 f4+ Kd5 b6 Kc4 c7 g2 c8N g3 Ra2 Qc7 Ba3 Qc6 Nf3 g1N Ng5 Nh3 Rg1 Na6 b8N g2 b7 Bh6 f8N Qd6 Nf7 Nf2 Kf3 Ne7 Ne6 Re8 Ng7 Nh1+ Kg4 Qd4 Kh5 Qff2 Qf1 Kb3 Ncd6 d1Q Nd2+ Kc3 Nf3 Nd5 N3e5 Ndc7 Ndc4 Qc2 Bf8 Qb3 Ncd6 Re6 Nd8 Re8 N6f7 d6 Nbd7 Re7 b8R Re6 Ra1 Kb2 Nb7 Re8 Nf3 Re4 N3e5 Qdd3 Re8 Ra4 Re6 Qdd4 Rg6 Qe1 Rg4 Qeg3 Qf3 Qe1 Rh4 Qef2 Rgf1 g1B Qg2 Qe1 Ra3 Be3 Rg1 Qf2 Nbd8 Qdc4 Nb7 Bb6 Raa1 Qcd4 Ra2+
3kR1q1/Q2b1RPR/6B1/r3r1r1/NPn2Rnb/nR3Pb1/N5n1/2K1N1r1 b - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 b5 axb5 g5 Ra6 f4 Ra1 f3 exf3 Bh3 Bc4 Be6 Bf1 Bc8 b3 Bg4 Bb2 Bc8 Ke2 h6 Bf6 g4 Bh4 g3 Bg5 gxf2 g4 Qd7 Bf6 Rh7 g5 Rh8 g6 Qd8 Bg5 hxg5 h4 a5 d4 e5 Kd2 c5 b6 a4 g7 g4 b4 a3 h5 g3 d6 a2 h6 g2 h7 e4 b7 e3+ Kc1 e2 d5 e1B Ne2 g1R Qd4 c4 Na3 c3 Rb1 a1N Rb3 c2 Rh4 Nd7 b8R Ne5 Rb7 Bd7 Rf4 Nh6 Nc3 Nhg4 Bd3 f1N Na2 Bg3 Qa7 Be7 Bf5 Qc8 Bg6+ Kd8 Rc7 Rf8 h8R Nc4 Rh7 Beh4 Rb7 Re8 Rc7 Bc6 Rcf7 Re5 d7 Rg5 Nb1 Re5 Nbc3 Rg2 Na4 Nfe3 Nb2 Ba4 Nd3 Rg1+ Ne1 Ng2 Qb8 Ra5 Qa8 Kc7 d8N+ Bd7 Nb7 Qg8 Nc5 Rg5 Qa6 Kd8 d6 Nce3 Kd2 c1R Na4 Rcc5 Qa7 Nc4+ Kd1 Nc2 Kc1 Be8 d7 Rce5 Qd4 N2a3 Qe3 Kc7 d8R+ Bd7 Re8 Re4 Ree7 Ree5 Qa7+ Kd8 Re8+
3RQN1b/P1npP2N/kR1b1b1q/n2R1N2/qrB4P/3N2bb/8/r5NK b - - 0 1 legal: proof: d4 b5 c4 h5 g4 Rh6 gxh5 Rh8 cxb5 a5 b4 axb4 d5 f6 d6 Kf7 dxe7 Rh6 Nf3 Rh7 Ng1 Rh8 e4 Rh6 e5 Rh7 Bb2 Rh8 Bd4 Ke6 Bc3 Kf5 e6 Kg5 Be5 fxe5 Ke2 Kf5 Ke1 Kf6 e8N+ Ke7 h4 g5 f4 c5 Kf2 e4 Kg2 e3 a4 b3 h6 c4 a5 b2 b6 g4 a6 g3 b7 e2 f5 e1B h7 c3 Ra4 c2 Qd5 c1B Bb5 Qa5 f6+ Kd8 f7 Nf6 Qd1 Nd5 Qh5 Nc6 b8N Bg5 Nf6 Kc7 Rd4 Kb6 Qg6 Qa4 Nc3 b1Q Nd1 Bd6 f8N Qc1 e7 Na5 Ne3 Bb7 Bc4 Nc7+ Rd5 Rg8 h8R Rg7 Ne8 Bf6 Nf5 Qh6 Nc6 Bec3 Qf7 Rg4 Nb4 Rf4 Rh3 Bcd4 Kh1 g2+ Kh2 Ka7 Rb3 Bf2 Nd3 Bg3+ Kh3 Bc6 Rbb5 Re4 Rg8 Bh8 Nf6 Bb7 Ba2 Rb4 N6h7 Bf6 Bc4 Bc6 Ne2 g1B Kg2 Bgd4 Qe8 Bc3 Kh1 Bh8 Ng1 Bcf6 Rb8 Bb5 Rg5 Bc6 Rd8 Bb5 Bb3 Bc4 Rb5 Be6 Rd5 Kb6 Bc4 Ra7 Ne3 Bh3 Nf5 Rb7 a7 Rb1 Nd4 Ra1 Rb5+ Ka6 Rgd5 Rb6 Nf5 Rc6 Bb3 Rc4 Ba2 Rb4 Bb3 Nb7 Bc4 Na5 Rb6+
3q4/1P1p2nR/1bP2B2/1N2Pkb1/r2Rr1B1/3Q1b1n/B1B1n3/qb1B1KR1 b - - 0 1 legal: proof: c4 c5 a4 e5 f4 g5 fxe5 b5 axb5 g4 Nc3 g3 d4 cxd4 hxg3 dxc3 g4 Bg7 g5 Bf8 b4 Ke7 e4 Ke6 g4 f5 g6 h5 b6 a5 b5 a4 c5 c2 g7 a3 g5 a2 b7 h4 g6 f4 b6 f3 Qd3 h3 Ne2 h2 Nc3 Rh6 Be2 f2+ Kf1 Nc6 b8R Nd4 Nb5 Nf6 Bg5 c1B Bd1 Ne8 Bf6 Bg5 c6 Bc5 Rg1 Ba6 b7 h1N Bc2 Rh7 Rd1 a1Q g8B+ Rf7 g7 Bb6 Bh7 Ne2 g8B Ng7 Bg6 Ra7 Bh5 Ra8 Na7 Bc4 Nb5 Ba2 Rc8 Bb1 Rd2 Nf4 Bhd1 Ra2 Ra8 Nh3 Ra4 Ra3 Rd4 Ra6 Re2 Ra4 Re3 Nf4 Rh3 Ne2 Bh7 Re7 Bg6 Nf4 Rh7 Nh3 Bgh5 Ng3+ Kg2 Ne2 Kf1 Qb8 Bg4+ Kf7 Be6+ Kg6 Ba2 Qf8 e6 Qd8 Kg2 Re8 e7 f1B+ Kf3 Nhf4 Kf2 Bg2 Ke1 Bf3 Kf1 Rf8 e8B+ Rf7 Rd5 Nh3 e5+ Re4 Rd4 Kf5 Be7 Rf6 Bh5 Rd6 Bf6 Rd5 Nc3 Ra5 Nb5 Ra4 Bg4+
bBrQBBr1/1b1P4/p3N2K/3rBb1b/N1n1P3/1n2R3/B3r2P/1kN4q b - - 0 1 illegal: No possible last move
1Nk4r/b7/2P5/1q2q1nb/2NRBN2/PPNRnqbp/q1RKNQ2/7n b - - 0 1 legal: proof: h4 b5 d4 c5 e4 f5 exf5 g5 b3 b4 Bf4 a5 Be3 a4 Bc1 a3 Bb2 axb2 c3 gxh4 cxb4 c4 b5 Ra7 Nd2 Rc7 Nb1 Rc5 dxc5 Bb7 Nd2 Ba6 Nb1 Bc8 g4 e5 f4 d5 a3 Kd7 f6 h5 f7 c3 g5 d4 f5 h3 b6 h2 f6 e4 g6 d3 b7 d2+ Ke2 c2 g7 c1B Bg2 h4 Nf3 e3 Ra2 h3 Re1 h1N Ng1 Qe8 Bf3 Nh6 g8R Ng4 Qc2 Nc6 Be4 Nce5 Nc3 b1Q Rd1 Nf3 b8N+ Kc7 Rg5 Bd6 f8N Bg3 Rd5 Ng5 f7 Qb5+ Rd3 Be6 c6 Kc8 Rb2 Qa2 Nfd7 Bc4 f8N Bf7 Ne6 Bh5 Rb1 Bb2 Rbc1 Ba1 Ne5 Bb2 Nb1 Bd4 Nc4 Bb6 Rd4 Ba7 Kd3 e2 Nc3 e1Q Nge2 Ne3 N6f4 Qf2 Qb2 Qf3 Rc2 Qe5 Rdc1 d1Q+ Rd2 Qg4 Rc2 Qf1 Rd1 Qff3 Kd2 Qd7 Kc1 Qb5 R1d3 Qdf5 Kd2 Qfc5 Qa1 Qd6 Qe1 Qde5 Qf2
B1r1Q3/P3b1Nn/4R3/2p2Bpq/nPk5/b1BPrR1b/1b1Kb1R1/3R1R2 b - - 0 1 illegal: No possible last move, all moves rejected
N5q1/2p1N1k1/3r2N1/1b3PQR/p1Nq4/q1P1nnPB/Rq3b1N/1r2R2K b - - 0 1 legal: proof: e4 e5 a4 f5 h4 b5 axb5 g5 d3 gxh4 exf5 d5 Qf3 d4 Qd1 e4 dxe4 d3 e5 d2+ Ke2 dxc1Q Ke1 Qdg5 Rh2 Qe7 Rh1 Qd8 b4 Kf7 f4 h5 Kf2 a5 g3 h3 f6 h2 Kg2 a4 c3 h4 e6+ Kg6 b6 Bd7 f5+ Kh6 b5 Kh7 f7 Qc8 b7 Nh6 e7 Ng4 e8R Ra6 b6 Kg7 Nd2 Bc5 f8N Qa3 Ngf3 Nc6 b8N Nd4 b7 Bb5 Ng6 Rd6 Re1 Qg8 Nc4 Rh7 Qd2 Ne3+ Kf2 h3 Nd7 Rh8 b8N Qb2 Ndb6 Rh4 Ng5 Nf3 Nc6 Re4 Nce7 Re5 Rg1 h1Q Ra2 h2 Bh3 Ree6 Rg2 Re4 Na8 Qg1+ Ke2 h1Q Rh2 Qa3 Qc1 Ba7 Qd2 Red4 Qc1 Rd1 Qd2 Ne5 Nf3 Rb1 Qc1 Nf1 Qd2 Qd4 Qg5 Ne3 Kf2 Bc5 Bg2 Bb6 Rh5 Bc5 Nh2 Nf3 Bh3 Ba7 Ree2 Qhc1 Re1 Qcb2+ Nd2 Nd1+ Kg2 Ne3+ Kh1 Nd5 Kg2 Qe4 Bg4 Bf2 Nc4 Qd4 Bh3 Ne3+ Kh1
1kn1RN2/N2R2N1/2KP1NRn/Pp1r2qq/P3r3/7q/3n1pQ1/1b1q1N1B b - - 0 1 legal: proof: f4 a5 c4 e5 b4 exf4 bxa5 d5 cxd5 f3 g3 Qh4 Bh3 Qg5 Bf1 Qd8 Nh3 f5 Bb2 h6 Bf6 f4 Bg5 hxg5 Ng1 Ba3 Qc2 f2+ Kd1 Bc5 Kc1 f3 Qb3 Bd6 Qd1 Bf4 gxf4 Bd7 Qb3 Bg4 Qd1 Bc8 Kb2 Kd7 Ka3 c5 Ka4 Kc7 Kb5 c4 a4 c3 d4 b6 h4 g4 e4 g5 f5 g3 e5 g2 h5 g4 d6+ Kb7 f6 g3 h6 c2 h7 c1Q e6 Qe7 f7 Nh6 f8N Qf6 d7 Qcg5+ d5 Qh4 d8N+ Ka7 e7 Nc6 e8N Qc3 d6 Qh5+ Qd5 Bf5 Nf6 Kb8 Na3 Ne7 Nde6 Nc8 Ne2 g1Q Bg2 f1N Ng7 f2 Rc1 Qb3+ Kc6 Bb1 Nb5 Nd2 Na7 Qgd1 Rg1 b5 Bh1 g2 Ng3 Qa3 Nf1 Qah3 Rc3 Rg8 Re3 Rh8 Re7 Rg8 Nge8 Rg5 Qg8 Rd5 h8R Qdg4 Ng7 Qgg5 Nh2 Bd3 Rd7 Bb1 Rc1 g1Q Nf1 Q1g4 Rc3 Qd1 Rg3 Qe3 Rg6 Qeg3 Bf3 Qgg5 Bh1 Qge3 Qe6 Nb6 Nc8 Qeg3 N8h7 Qgg5 Qg4 Ra7 Re8 Nbc4 Rc7 Nb6 Qg2 Rb7 Na7+ Nc8 Rf7 Re7 Nf8 Re4 Rd7
n2R2N1/2R1pBN1/1Rr1nP1N/2Pr3n/7b/2p4n/Nr1PK1bk/nN2Q3 b - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 f5 exf5 d5 gxh5 d4 Bb2 Qb6 Bc3 dxc3 a4 cxb4 Qc1 b3 Qc2 b4 Qd1 Qb5 axb5 Ba6 Qg4 Bb7 Qd1 Bc8 f4 Kf7 h4 Kf6 h6 a5 c5 g5 h5 b2 b6 g4 h7 b3 b7 g3 h6 g2 Rh4 a4 Ra3 Nd7 b8N Bb7 Nf3 g1N Qe2 Bg7 Nh2 Bg2 Nc6 Rd8 Nb4 Nf8 Na2 Ne6 Rg4 Rd5 Rg6+ Kf7 Qe5 Nf6 Ng4 Nh3 Bc4 Rc8 h8R Nh5 h7 Rc6 Ke2 Bf6 Rd8 Bh4 Rf6+ Kg7 h8N Kh7 Nf7 Kg7 Nc1 Kh7 Ra2 a3 Ngh6 Kg7 Ra1 a2 Ng8 Kh7 Nfh6 Kg7 Na3 b1R Qe3 Rb2 Nb1 Kh7 Qf2 Kg7 Qe1 Kh7 Rd7 Kg7 Rc7 Kh7 Rf8 Kg7 f6+ Kg6 f5+ Kg5 f7 Kf4 Qd1 Kg3 f6 Kh2 Rd8 Rc2 f8N b2 Na3 b1N Qe1 Neg7 Ne6 Rb2 Nc2 Na3 Rb1 a1N Na2 Nb5 Na3 Nf5 Ng7 Nfd4+ Ke3 Ne6 Ke2 Nd6 Bb3 Nc8 Bc4 Nb6 Bb3 Na8 Bc4 Rb7 Rb6 Rb8 Nb1 Rb7 Bd3 Rb8 Bg6 Rb7 Bf7 Rb8 Ra6 Rb2 Rb6
K5b1/3Bn1P1/1kBPq3/1p2P3/pB5q/b1Nr1BN1/Q1rbnp2/3B1RN1 b - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 d5 c4 Bd7 cxd5 Bc8 hxg5 a6 b4 Ra7 b5 Ra8 a4 axb5 a5 Nd7 Ra2 Nb8 Ra4 bxa4 Kf2 Kd7 Ke3 b5 Kd4 h5 e4 f5 g4 c6 d6 h4 Kc5 h3 d4 h2 d5 f4 a6 f3 a7 f2 g6 Qg5 Kb6 c5 e6+ Kd8 d7 c4 e5 c3 g7 c2 Be2 Qf5 g5 Qg4 g6 Qg3 Nc3 Rh3 Qd2 Qh4 Bd1 Qe7 Ba3 c1B Bb4 Nh6 g8B Rd3 g7 Bb7 Qa2 Nf5 Bh7 Nd4 Be4 Nbc6 Bef3 Rc8 a8B Nb8 Ka7 Kc7 d8N Bd2 Nf7 Ne2 Nh6 Qd6 e7 Qe6 Nh3 Bc6 Rf1 h1Q Ng1 Qh4 e8B Bd7 Nf5 Nc6+ Ka6 Ne7+ Ka7 Bc6 Ng3 Bd7 Bf7 Be8 Bg6 Bf7 Bc6 Bg8 Bge8 Rd8 Bfh5 Rd6 Ka8 Kb6 Bcd7 Rc6 Bf3 Rc4 Nb1 Rc2 Bc6 Nf5 Bed7 Bc5 d6 Ne7 Bc3 Ba3 Bb4 Be3 Nc3 Bec1 Bh1 Bd2 Bhf3
4krB1/b1pNQ3/1NB5/p3p1BR/2qPP3/3P2r1/2q1N1n1/bn1n1NNK b - - 0 1 legal: proof: g4 f5 a4 b5 axb5 d5 c3 d4 cxd4 Kf7 b6 Ke8 b4 fxg4 b5 a5 Bh3 h5 Bf1 Ba6 Ra3 h4 Rg3 hxg3 bxa6 Qc8 Qc2 Qd7 Qd1 Qd8 e4 g5 h4 g2 h5 g3 h6 g4 a7 Qd5 h7 Nf6 b7 Qc4 Rh5 Nc6 b8N Nd5 Nd7 Rg8 h8N Ne5 Nb6 Ne3 Ng6 Bg7 Nf4 Ng6 Nfe2 Nf4 Qb3 e6 Qb4 Nd1 Qa3 Rd8 a8B Rf8 Bc6+ Rd7 Nh3 g1Q Qc5 Qh2 Nhg1 Bf6 Bh3 Bh8 Kf1 Be5 Na3 Bg7 Nc2 Bf6 Ne3 g2+ Ke1 g3 Nf1 Be5 Bf5 Bg7 Bh7 Be5 Bg8 Bg7 Nf3 g1N Qg5 g2 Qh4 Ngh3 Nfg1 Ng5 Nc3 e5 Bcd5 Re7 Bb2 Rf6 Ba3 Ref7 Be7 Bh6 Bb7 Re6 Ba8 Bf8 Bf6 Ba3 Bc6+ Kf8 Bd8 Rg6 Bf6 Bb2 Bd8 Qg3 Bf6 Qgd3 Nce2 Ba1 Bd8 Nh7 Qf6 Rg5 Qe6 Rg3 Bg5 Nf6 Qd7 N6d5 Qe6 Qdc2 d3 N5c3 f3 Nb1 Qd7 Nd5 f4 N5e3 f5 Rf6 Nf3 Rf7 f6 g1B Nd5 Ng4 Qe6 Be3 Nfg1 Bc1 Qd7 Ba3 Qd6+ Re7 f7 Bc5 Qf6 Ba7 Nb6 Nge3 Qd6 Kg7 f8N Rf7 Nfd7 Rf8 Qa3 Kg6 Qe7 Nb2 Nf3 Ng2+ Kf2 Nd1+ Kg1 Q2c3 Kh1 Qc2 Qc5 Kg7 Nfg1 Kg6 Bh7+ Kf7 Bg8+ Ke8 Qe7#
Q2Rq3/P2Np1B1/5p1B/2N2K2/q1rk1Nn1/1br5/2PNpPrn/bN3B2 b - - 0 1 legal: proof: b4 c5 bxc5 a5 d4 d5 g4 h5 gxh5 Bd7 a4 Ra7 e4 dxe4 d5 Qc8 d6 Ra8 Ra3 Qc7 Rb3 Bc8 Rb4 Qb6 Rc4 Qb4+ Rxb4 axb4 Ke2 Kd7 Ke3 Ke6 Kf4 g5+ Kg4 Ke5+ d7 b5 h4 e3 h6 e2 c6 b3 a5 b2 h7 b4 a6 b3 h5 Nf6+ Kf3 g4+ Kg3 Bg7 d8N Be6 c7 Nc6 c8N Nd4 h6 Nf3 a7 Nh2 Kh4 g3 Kg5 g2 Qd3 Nfg4 Qf3 Kd4 Nb6 Rc8 Nd7 Rc4 Nb7 Rhc8 h8N Be5 h7 f6+ Kg6 Rc3 Bf4 R8c4 Nbc5 Bg8 Qa8 Bd5 Na3 b1Q Kf5 b2 Bh6 Qa1 Ng6 b1Q h8B Qb8 Nb1 Qe8 B8g7 Qa4 Nf4 Bf7 Ngh3 g1R Ng5 Rg2 Nge4 Rb4 Ned2 Bb3 Bf8 Rbc4 Bhg7 Nf3 Rh8 Nfh2 Bh6 Bc7 Bfg7 Bd6 Ncd3 Ba3 Rf8 Bb2 N3c5 Ba1 Rg8 Qf7 Rc8 Qe8 Rd8
3b4/bkprqn2/1p4KN/2P1BNP1/1PN5/BpNq1nb1/2qN3Q/1R4B1 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f5 e4 a4 e6 Ne7 e5 Na6 Bd3 Nd5 Be4 Nf6 a3 Ng8 Ra2 Bc5 Rb2 Nb8 Rb3 axb3 a4 Bf8 g4 fxe4 f4 d5 f5 g5 Kf1 Ra6 Ke1 Rc6 h3 Rc3 f6 Rf3 Nd2 Rf5 Nb1 Bd7 gxf5 g4 Be3 g3 Bh6 Bb5 Bf4 Be2 Bc1 Bg4 hxg4 Bg7 Qd4 Bh6 Qd1 Bf8 Ke2 h5 Ke3 h4 Kf4 d4 Kg5 h3 c4 h2 a5 d3 e7 Kd7 e8N Kc6 a6 e3 e6 d2 e7 e2 a7 e1B a8N g2 f7 Qc8 f6 Rh6 Qc2 d1Q Nb6 Bc3 Nf3 g1B Ba3 Rh4 Ng7 Nd7 e8N Be5 Nfd2 Rh7 Nc3 Be7 f8B Qd8 Kg6 Nh6 f7 Bg3 g5 B1f2 Rg1 h1Q Nf6 Qhf3 Ng8 Qd3+ Nf5 Qe8 Bg7 Bd8 Rh1 Qe7 f8B Nf7 Be5 Bc5 Qb2 Q1c2 Nh6 Bd4 Rb1 Bdf2 Nbd5 Ba7 Ne3 b6 c5 Kb7 Nec4 Nb8 Bd4 Nc6 Bg1 Nd4 Bg7 Nf3 Be5 Rh8 Ng4 Rh4 Nh6 Rd4 Qa2 Rd7 Nf1 Qcd1 Qh2 Q1c2 Nfd2
2rBBr2/P1BP2pn/1N5p/Q6P/Bpq2b2/1qpR1q2/1NN3p1/1k4KB b - - 0 1 legal: proof: f4 d5 d4 f5 c4 e5 dxe5 a5 g4 d4 b4 axb4 a4 Kd7 g5 Ne7 g6 Nd5 cxd5 Nc6 Ra3 Ne7 Rg3 Ng8 Rg4 fxg4 f5 Ke8 f6 Be6 Nc3 Kd7 Nb1 Bf7 gxf7 Qc8 Bf4 Qe8 Bc1 Qd8 Kf2 b5 e4 c5 h4 d3 e6+ Kd6 h5 Ke5 d6 Kd4 e5 h6 a5 d2 a6 c4 e7 b3 e8B b2 e6 b4 a7 c3 e7 Qb8 Na3 b1Q Nh3 g3+ Kg1 Qb2 Qa4 d1Q Nf4 Qf3 Rh3 Qa1 Nc2+ Ke4 Bg2 Qc7 Nd3 Rc8 Qa5 Qa4 Bf4 Qa2 Nb2 Rb8 Bh1 g2 Ba4 Qb3 e8B Rc8 Bg5 Be7 f8N Qcc4 f7 Nf6 Nd7 Nh7 Nb6 Rf8 d7 Bd6 Bd8 Bf4 Bc7 Rg8 f8B Rh8 Be7 Rf8 Nd1 Kd3 Bed8 Kd2 Rg3 Kc1 Nb2 Kb1 Rh3 Qfc6 Re3 Qf3 Rd3
7n/k4nbP/BNp2Bpp/n1p4p/Pqn2Q2/1bP1B2N/B6B/RN2K3 b - - 0 1 illegal: Other
1qbR1B1B/1kqrp3/3NN1BP/b3r1n1/B1r1P1Br/K3P3/2N3b1/1Q2q1n1 b - - 0 1 illegal: No proof kernel
1Bn3k1/5pp1/K1BRbPPq/B7/nPrBr3/2RB2Q1/2b2N2/n1rq1bR1 b - - 1 2 legal: proof: d4 d5 Kd2 c5 a4 cxd4 e3 b5 axb5 d3 Kc3 d2 Kb3 d4 Kb4 d3 Kb3 Bb7 Kc3 Bc8 g4 Bd7 Kd4 h6 Ke4 e6 Kf3 Na6 Kg2 Bc8 Nc3 Nb8 Ne4 Bc5 Ng5 Bd4 exd4 Qe7 N5f3 Qd8 g5 h5 Ne5 Qb6 Ng4 hxg4 Qe2 Qc7 Qd1 Qd8 b4 Kf8 c4 a5 h4 a4 f4 g3 Kf3 a3 Ke4 g2 f5 a2 d5 e5 f6 Rh5 d6 Bg4 Kd5 e4 Kc5 e3 b6 e2 Kb5 e1R b7 Re8 c5 Be6 d7 Re7 c6 Bd5 g6 Rh7 h5 Na6 b8B Nc5 c7 Be6 c8B Na4 Qe1 d1B h6 d2 Rh3 Bc2 Rc3 d1B Bd3 Be2 Be3 Bf1 Nh3 g1Q Bd4 Qh2 Bb7 Ra7 Be4 Rc7 Nf2 Rc4 Ka6 Qh3 Rd1 a1N Bc6 Rh8 h7 Qh6 Rd2 Re8 Qe5 Ne7 Qg3 Nc8 Rd1 Rg8 h8R Re7 Rh7 Rh8 Rd2 Kg8 Rd1 Bg4 Rd2 Re4 Rd1 Be6 Rd2 Qc7 d8B Qd6 Bdc7 Qd5 Ba5 Qdh5 Nh1 Qd1 Nf2 Qe3 Rh1 Rh3 Qh2 Qh6 Rg1 Rhe3 Qg3 Re1 Re2 Qdd2 Re3 Rc1 Rf3 Qd1 Rf5 Re3 Rd5 Re4 Rd6
2B1qBqR/PK3p2/1B1Brn2/3rnPR1/5b1R/1kr4b/2N1PpQB/2n2b2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 f5 Nh6 Nc3 Ra6 cxd5 Ng4 Ne4 Nh6 Nc5 Ng8 Nd3 Ra8 Nf4 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 h4 c5 a4 b5 h6 g5 h7 b3 a5 b2 d6 b1B+ Ke5 g4 h5 b4 a6 g3 d5 g2 a7 b3 h6 f3 d7 f2 d6 b2 Nf3 g1Q Ne1 Be4 Bg2 b1R Bf4 Rb3 Rh4 Bcb7 Bh2 Rd3 Qc1+ Kb3 Qg5 c4 Ra4 Qc8 d8B c3 Be7 Qe8 d7 Bbc6 Bh1 Bg2 d8B Bf1 Bb6 Bcg2 Rag4 Bh3 Bb7 Nd7+ Ke4 Rd8 Bc8 Re3+ Kd5 Rg3 Bb4 Bd6 Kc6 Bf4 Bf8 Ne5+ Kb7 Rd5 Bd6 c2 Qg7 c1N Nc2 Ne7 Qg5 Rg8 h8B Rg6 h7 Ng8 Bg7 Rc3 h8R Re6 Bgf8 Nf6 Rg3 Qg2 Qg4 Qg1 Qf3 Qg2 Rgg8 Qg6 Qg2 Qh7 Rgg4 Qg8 Rg5
K5R1/b1R1NRr1/1Bn3rq/b2N3p/P1Rb2r1/p2R2P1/nkN4P/3Q1bb1 b - - 0 1 illegal: No proof kernel
2B5/r1qnN3/1B1k1pb1/1rb2P2/P1RRRr2/2p2RR1/1B1nP2K/2rq1Qn1 b - - 0 1 legal: proof: d4 a5 c4 d5 b4 axb4 g4 h5 gxh5 e6 Nc3 Qh4 cxd5 Qe7 d6 Qd8 d5 e5 Nb5 Nh6 Nd4 exd4 Qb3 Ng8 Qa4+ Nd7 Qd1 Nb8 h4 Kd7 a4 b5 f4 c5 Kf2 g5 Kg3 d3 h6 b3 h5 c4 h7 c3 h6 b4 Rh3 g4 Bb2 d2 Kh2 Qa5 Rf3 Ra7 Bh3 Nf6 Qf1 d1Q Rb1 Rg8 h8R Ne4 h7 f6 Rg3 Qc5 Rf3 Rg6 Rg8 Nd2 h8R Qc7 Rh4 Rg5 Rg6 Rf5 Rg8 Be7 Re8 Bf8 Re4 Ba6 Ra1 Bd3 Rc1 Rg5 Rc4 Bg6 Rg3 Rf5 Rb1 Ke8 d7+ Ke7 d8R Nd7 d6+ Ke6 Rf3 Rb5 Re8+ Kd5 Ree4 g3+ Kh1 g2+ Kh2 Be7 Bg4 Bf8 Nh3 g1N Rcd4+ Kc6 Be6 Be7 f5 Bf8 Nf4 Be7 Ba3 b2 Nd5 b3 Rc1 b1R Bb2 Bf8 Rhg4 Rb4 Rgg3 Be7 Rc2 Rc1 Rc4+ Nc5 d7 Kd6 d8B Nd7 Ba3 Bf8 Ra2 b2 Ra1 b1R Bb2 Nb6 Bc8 Nd7 Ra2 Qc6 Bb6 Rb5 Ba1 R1b4 Rb2 Qc7 Rcd4 Rc4 Rb4 Kc6 Bb2 Bc5 Rdd3 Rd4 Rc4 Kd6 Ref4 Re4 Rdd4 Re8 Rfe4 Rh8+ Rh3 Rh4 Rg3 Rf4 Rf3 Rb3 Rhg3 Rb5 Ne7+
1RNK1NR1/1pQ5/N2n1B1r/2N1q3/3pb1Rr/Nb1P1q1b/1n1Pk1P1/2b2n2 b - - 0 1 illegal: No proof kernel
2Q2R2/rBnRb1P1/3B3q/kb1nB3/p1pP1b1n/r1P3RR/b4K2/1R1qN3 b - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 g5 fxg5 b5 axb5 Bh6 Ra5 Bg7 Ra1 Bf8 g4 h5 g6 Qd3 g5 Rh6 Na3 Qd4 Nc4 Qd8 Ne5 Rh8 Ng4 hxg4 d4 Kd7 b4 c5 h4 Kc7 h5 Kb6 h6 f5 h7 a5 g7 e5 g6 g3 c3 g2 Rh6 f4 Ra3 f3 Qa4 f2+ Ke2 e3 Rh3 e4 Qb3 Qg5 Qd1 Be7 Rh1 Be6 Rh3 Ra7 Nf3 g1Q Bg2 Nf6 g8R Ba2 Ne1 Nd5 g7 Qh1 Rf8 Na6 Rg3 Nac7 Qb3 Qf4 Qc4 Qfh6 Bb2 Rg8 h8R Q1h5+ Kf1 Qd1 Rb3 a4 Rf7 Rga8 Ba3 Rb8 Rb1 Rbb7 Bh1 e2+ Kg2 f1B+ Kf2 Qhc1 Rhh3 Qh6 Rf8 Rb8 Rd8 Rbb7 Rd7 Rb8 Nc2 e1N Bf3 Ng2 Ne1 Nh4 Bh1 Kb7 b6 Kc6 b7 Kb6 b5 Ka5 b6 e3+ Kg1 e2 Kf2 Re8 b8R Rd8 Ra8 Rb8 Nd3 Rb7 Rf8 Rb8 b7 e1B+ Kg1 Bd2 Kf2 Bf4 Ne1 Nf6 Qe6 Bb5 Qg8 c4 Bd6 Nfd5 Qe6 Rba8 b8B Rb7 Bg2 Raa7 Qf5 Ba6 Be5 Rb3 Bd6 Bb5 Bh1 Nf6 Bb7 Nfd5 Be5 Ra3 Qg4 Na8 Bbd6 Nac7 Qe6 Beg5 Qe8 Be7 Qc8
1RR1RK2/3q2pN/2RBNb2/P2b4/1p1nq1kr/1P1n4/r4rPb/b1R1Q1N1 b - - 0 2 illegal: No extended proof kernel
1nb3nK/2p2Rp1/3n2PN/RR5R/B3qB2/bQPBb1q1/1q1qP3/R3r1k1 b - - 0 1 legal: proof: f4 a5 g4 h5 a4 e5 d4 Ra6 Nc3 Re6 Nd5 Re7 g5 exd4 Ne3 b5 axb5 Re4 Ng4 Re5 fxe5 hxg4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 d3 h4 Kd4 b4 d5+ e6 d2 b6 Ke3 b7 Kf2 b5 a4 c3 d4 h5 d3 h6 a3 h7 a2 b6 g3 Qb3 d1N Bf4 d2 Bh3 g2 Nf3 g1B Ne5 Qe7 g6 f6 Nf7 Nb2 Nh6 d1Q Bg2 Qdd7 Rh5 Qd2 Be4 Nc4 Bd3 Qe8 Rg5 Ba3 Rh5 Qc6 Rg5 Qg2 Rh5 Qg3 Rg5 Nd7 e7 Nd6+ Ke6 f5 e8B Nb8+ Bd7 Kg2 Rh5 Be3 Rg5 Na6 b8R Kh2 Ra8 Nb8 b7 Kg2 Rf1 a1Q Rh5 Qaa2 Ra5 Qab2 Rf2+ Kg1 Rf3 Ne8 Kf7 Nd6+ Kf8 Bd4 Ba4 Be3 Bg5 f4 Rf1+ Kg2 Ra1 f3 Bf4 f2 Rhf5 f1Q Rf7 Nc6 b8R Qfb1 Rbb5 Kg1 Rg5 Nb8 Rgb5 Nf6+ Ke7 Rd8 h8R Rd7+ Kf8 Ng8 Rh7 Qdd1 Bc4 Qe4 Bd3 Qdc1 Ng4 Qd1 Rhh5 Qdc1 Nh6 Qce1 Bb1 Qed2 Bd3+ Qd1 Qb4 Ne8 Rhg5 Ngf6 Bb1 Rd4 Rh5 Nd6 Bbc2 Qdc1 Qc4 Rd1 Bd3 Re1 Qe6 Qcd2 Qb3 Nh7+ Kg8 Nf6+ Kh8 Ng8 Rh3 Qd4 Rh4 Qe4 Rhh5
4BqR1/k1p5/R1P3p1/pRQrPbP1/K2B1nn1/B6N/brr1qBn1/5B2 b - - 1 2 legal: proof: e4 b5 a4 e5 axb5 Nf6 d4 exd4 f4 Rg8 e5 Rh8 e6 Ng8 g4 h6 Nd2 Be7 Ne4 Bd6 Ng5 Be5 fxe5 Bb7 N5h3 Bc8 g5 h5 Nf2 Ne7 Ng4 hxg4 Bf4 Ng8 Bd2 Rh6 Bc1 Rh8 Kd2 a5 b4 f5 h4 d5 c4 g3 Kc2 f4 Kb3 g2 h5 g6 b6 d3 b5 f3 h6 d4 e7 Kd7 c5 f2 b7 d2 h7 d3 b6 Kc6 e8B+ Nd7 b8R Ne7 b7 Nf5 Nh3 g1N Bf7 Nh4 Qe1 d1R Ba3 d2 Ka4 Ne2 Rb1 Qf8 Be8 Ng2 Rh2 Nef4 Rb5 Rc1 Bb2 Rc2 Bd4 d1Q Qe3 Qe2 Qa3 Rg8 h8B Ra6 Qc3 Rb6 Bf6 Rh8 Be7 Rh4 Bf7 Nf6 Be8+ Bd7 Rc8 Ng4 b8B Kb7 Ba7 Bf5 c6+ Ka6 Qc4 Rh7 Bd6 Rd7 Ba3 Rd5 Qc5 Qd2 Bc4 f1B Rh1 B1d3 Rhb1 Qe2 Rb8 Be6 R1b4 Bdf5 Rb3 Qd1 Bf1 Qe2 R5b4 Qd3 Bf2 Qc4 Qe7 Rd1 Bf7 Qh6 Rg8 Qe2 Be8 Qf8 Rb2 Rd7 Qd6 Rb8 Bad4 Ba2 Qc5 Rd5 Rb1 Rb7 R1b3 Ra7 Rb8 Rb7 Rb1 Rb3 Rb6+ Ka7 Rb2 Re3 R2b4 Rb3 R4b5 Rbb2 Ra6+
q5b1/b1R1B1pr/q4bRr/2B1rpPP/1KB1P1B1/n3R1k1/p1NQ3n/5B2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e6 d4 Qe7 Nc3 Qf6 Nd5 Qd8 g5 cxd4 Ne3 e5 Ng4 hxg4 fxe5 Qf6 Kd2 Qe7 Ke1 Qd8 Kd2 Ke7 e4 Ke6 h4 d5 c4 a5 b4 f5 h5 g3 c5 a4 b6 a3 b7 d3 Kc3 a2 b5 d2 b6 g2 c6 d4+ Kb3 d3 c7 Nf6 Ne2 g1B Ba3 Ra6 Be7 Ng4 Rc1 Nc6 b8R Na5+ Kb4 Nh2 b7 Rh7 Rc4 Bd7 c8B Ba7 Rc7 Nc4 Rg1 Rc6 Rg3 Na3 Re3 Ra6 Qc1 d1Q Qd2 Ra5 Bh3 Qf1 Bg4 Rd5 Bc5 Be7 Ra8 Qg8 b8B Bf6 Ba6 Ba4 Bc4 Bb3 Rb7 Qf8 Bbd6 Qh8 Rc8 Qg8 Rc6 Qa8 Ng1 Qe2 Rbc7 Qf1 Nf3 Qe2 Qd1 d2 Ne1 Qd3 Qc1 d1R Qd2 Rb1 Nc2 Qf1 Bce2 Rc1 Be7+ Rd6 Bef3 Qa6 Bg2 Rd1 Qe1 Rd5 Bf1 Ba4 Rb6 Be8 Qc1 Bf7 Qd2 Bg8 Bd8 Be7 Bc4 Kf7 Bf1 Rdh6 Re6 Qe2 Rg6 Qa6 Rcc6 Bf6 e6+ Ke8 e7 Kf7 Rc8 Ke6 e8B Ke5 Bde7 Kf4 Beb5 Re5 Bbe2 Nb1 Bc4 Na3 Re1+ Kg3 Rc7 Qf8 Re2 Qa8 Re3+
1nR2RBB/q2b1q2/PB5q/6k1/BnQ1rpp1/bB1Pp2r/3RbP2/4N1K1 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 dxe4 g4 h5 gxh5 c6 Nc3 c5 Nd5 Nc6 Nb4 cxb4 Qg4 Nb8 Qf3 Qc7 Qd1 Qd8 c4 g5 a4 f5 h4 Kf7 a6 Kf6 h6 e5 h5 b5 c5 b3 c6 b2 a5 b1B a7 g4 a6 f4 c7 e3 h7 b4 h6 b3 Bb5 e4 Kf1 b2 d3 Ne7 Qc2 Qd6 Nf3 e2+ Kg1 Bd7 c8B Nec6 Ba4 Nb4 Ne1 Kg5 Qc4 Bc2 Ra2 b1Q Be3 Qb3 Bb6 Bd1 Rd2 e3 Bb7 Qc7 Bd5 Bd6 Bf7 Re8 h8R Re4 Bg8 Be7 Qc1 Qf7 h7 Bc5 Qc4 Qb7 Rh6 Be7 Ng2 Qc7 Rc6 e1Q+ Kh2 Qf1 Ne1 Qh3+ Kg1 Qh6 Bb3 Qb7 Rc8 Be2 Ba4 Nc2 Bb3 Ba3 Ba4 Nb4 Bb3 N8c6 Ba4 Rb8 a8B Qa7 Rf8 Rc8 Bb3 Nb8 Bc6 Qfg7 Bca4 Rc6 Bd5 Qf7 Rc8 Rg6 Rhf8 Rg7 h8B Rh7 Rfe8 Qhe6 Red8 Rh3 Rf8 Qh6 Be6 Qe8 Bg8 Qeh5 Qc2 Qf7 Qc4
4Bk1r/N1P3qN/1B2pbRp/2p1nb1q/4q1bN/P6r/N2QPN2/K1B4n b - - 0 1 illegal: No proof kernel
nb1q4/2p2RbR/1r1bKp1r/1N5b/5N1N/2P1B1p1/1rP1N1P1/R1NQkn2 b - - 0 2 illegal: No proof kernel
4nr2/pQ3rNB/N1b1nb1B/4q3/B1pk1pr1/B1N2P2/r1Pb1PR1/1K4B1 b - - 0 2 legal: proof: b4 e5 a4 h5 d4 b5 axb5 exd4 Ra3 Qf6 Rg3 Qf4 Rg4 Qf3 gxf3 hxg4 Kd2 Ke7 e4 Ke6 h4 Ke5 h5 f5 h6 c5 b6 g5 h7 d5 b7 d3 b5 g3 b6 g2 Rh6 d4 Rh2 c4 Rh6 g4 Bb2 g3 Kc1 Nf6 Rh3 Na6 b8N Ne8 b7 Nac7 Na3 d2+ Kb1 Bb4 Rh2 Bd7 Na6 Rf8 b8B Bc6 Nh3 g1R Bd3 g2 Ng5 Rf7 Nb5 Bc3 Qc1 d1Q Ba3 Bd2 Nc3 Qe1 Ne6 Qe3 Ng7 Qf4 Be2 d3 h8B Kd4 e5 Ne6 Bf1 Qe4 Qb2 Qd5 Qb7 Qa5 Kb2 Qc7 Be2 Ra1 Bf1 g1B Rg2 Ra2+ Kb1 Bh2 Be2 Bhf4 Bf1 Bg5 Be2 Nf8 e6 Bf6 e7 Ne6 Bf1 Qa5 Bh2 f4 Bg1 Qe5 Be2 Bc1 Bf1 d2 Bd3 d1R Bh7 Re1 Nh5 Rf1 Bg7 Rd8 Bh6 Bd2+ Nd1 Rc8 Ng7 Ra8 Bh2 Rh1 Bg1 Rh4 Nc3 Rb8 Nb4 Rg4 Na6 N8c7 e8B Rc8 Bd7 Rcf8 Qb8 Ne8 Qb7 Bd5 Bb5 Bc6 Ba4
1nrBN3/pr1P1b1r/1Rn1Bn2/P1QR2pp/B1k5/5RRP/1R4q1/1bK1n3 b - - 1 2 legal: proof: e4 f5 b4 c5 bxc5 d5 Na3 dxe4 Be2 f4 Bc4 Na6 Bf1 Nb8 Nc4 e6 Ne3 fxe3 f4 Be7 g3 Bd6 f5 Bf4 gxf4 Kf8 Ne2 Ke7 Ng1 Ke8 c4 Kd7 d4 Kc6 a4 h5 a5 b5 h3 e5 d5+ Kc7 f6 b4 d6+ Kc6 f5 b3 f7 e2 Kd2 e1N f8R g6 f6 b2 f7 b1B Rh2 Nf6 Rg8 Ne8 f8R Bf5 Qc2 Nf6 Ne2 Na6 Nf4 Qb8 Nd5 Nd7 Nf6 Qb2 Ne8 Be6 Rf3 Bf7 Ra4 Rc8 Rb4 Nf6 Rb6+ Kd7 c6+ Ke6 c5 Kd5 c7 e3+ Kd1 e4 c6 Rh7 Bb5 Nb8 Ba4 Nd3 Bd2 Ne5 Qc5+ Ke6 Bc3 Qg2 Kc1 e2 Be1 e3 Bh4 e1N Bg5 Qh1 Rhb2 e2 Rg7 Qg2 Bh4 Rd8 c8B+ Rd7 c7 Nec6 Bb7 Re7 c8R Rc7 Rd8 Rc8 Qb4 Kd5 Rg8 Rc7 Bc8 Rb7 Qa3 Kc4 Bg4 Rc7 Rd7 Rc8 Be6+ Nd5 Bd8 g5 Rg3 Nf3 Rf8 e1R+ Bd1 Re3 Ba4 Rb3 Qc5+ Kd3 Rdb7 Nf6 d7 Rb4 Rb5 Rb3 R7b6 Rb4 Qd6+ Kc3 Rd5 Kc4 Ra6 Rb7 Rab6 Ne1 Qa3 Bfg6 Rf7 Ng4 Rff2 Nf6 Rff3 Bf7 Qc5#
1r5b/k3QqPK/pqpq1B2/2P3pb/R2PRBRn/7q/B1B1rn2/3B3N b - - 0 1 illegal: No proof kernel
4n1B1/N2R1P1n/1r2BQq1/prpp1B1N/1rnn1B2/N7/2PP1Br1/K3kb2 b - - 0 1 legal: proof: e4 f5 b4 fxe4 a4 g5 f4 b5 axb5 Ba6 f5 Bb7 Ra3 Bc8 h4 Bb7 g4 Bc6 Rf3 Bg7 Rf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Bb7 Qg4 Ba6 Qd1 Bc8 f6 d5 f7+ Kd7 b6 Ke6 b7 Ke5 g7 h5 g6 c5 b5 a5 b6 f3 Rh3 Kf4 Ba6 e5 Rh1 Kg3 Bd3 h4 Bb5 h3 Na3 f2+ Ke2 f1N Rh2 e3 Kd3 e2 Kc3 e1N Kb2 e4 Bd7 e3 Nb1 e2 Ka1 Ra6 Be8 Nf6 Bb2 Rh4 Na3 Nc6 b8N Qd6 b7 Nf3 Bd7 e1R Re2 h2 Re7 Kf2 Ne2 h1R Bd4+ Ne3 Ng3 Reg1 Nh5 Rb6 Bh3 Bf5 Rd7 Bd3 Qc1 Qg3 Be6 Rg2 Qb1 R1h3 Qb2 Ne8 Qc3 Ke1 Qb2 Nb4 Nc6 Ng5 b8B Bf1 Na7 Nc6 Qc3 Re4 Bf4 Qg4 g8B Rhg3 g7 Rf3 Bh7 Rh3 Bhf5 Nh7 g8B Qg6 Bde5 Ra4 Bf6 Nc4 Qb4 Rb3 Qc3 R3b5 Bd4 Rab4 Bde3 Rf2 Qf6 Rg2 Bg1 Nd4 Bf2+
3N2K1/PpNbbN2/p2p1p2/R2P1k1r/2nB3B/2nB1rN1/Pq3Q1n/N3r3 b - - 1 2 legal: proof: f4 e5 g4 exf4 b4 c5 b5 h5 gxh5 a6 b6 d6 Na3 Qe7 Rb1 Qc7 Rb4 cxb4 Nh3 Nd7 Ng1 Qb8 Kf2 Qa7 bxa7 Nb8 Ke1 Rh6 Nb1 Rh7 Na3 Rh8 Kf2 Kd7 Kf3 Ke6 Kg4 g5 h4 f3 e4 b3 c4 b2 d4 b1R c5 f2 h6 Ra1 Kh5 g4 e5 g3 c6 g2 c7 Be7 h7 Bg5 Qe1 Ne7 Bd3 f1N Qf2 Bd2 Nf3 g1Q Nc2 Rd8 h8B Ne3 Kh6 Nec6 Kh7 Qe1 h5 Bc3 h6 Qd1 Rh5 Rf8 Nd2 Qe1 Ne4 Ng4 Bg5 Nh2 Bh4 Bd7 c8N Qb1 Ne7 Nb4 Nc6 Qb2 Bg7 Rb1 Na1 Re1 Rg5 Nd5 Nd8+ Ke7 e6 Nc6 Bh8 Ne5 Kg7 Bd2 h7 Nc4 Rf5+ Bg5 Re5 Nc3 Ra5 Ke8 e7 Rc8 Qg2 Rc5 Qf2 Rf5 d5 Bf6+ Kh6 Rg5 Bg7 Rf5 h8N Rf3 Kh7 Rg8 Bh6 Rg5 Bg7 Rh5+ Kg8 Bb5 Nb3 Kd7 e8N Ke7 Na1 Bd7 Nc7 Bg5 Bd4 Bf6 Bc5 Bg5 Ng3 Kf6 Ne4+ Kf5 Be3 Be7 Bd4 f6 Nhf7 Qc1 Bc5 Qd2 Bd4 Qb2 Ng3+
Kb1N2N1/1p1B1b1q/2N3k1/Npp3p1/3r1BR1/nP2nBP1/2rQNP2/1q4n1 b - - 0 2 legal: proof: e4 d5 a4 f5 h4 g5 h5 a6 c4 fxe4 cxd5 Bf5 Ra3 Bc8 Rb3 Qd6 Rb5 Qg6 hxg6 axb5 Ke2 h5 Ke3 e5 d4 h4 a5 c6 a6 h3 a7 h2 g7 Kf7 d6 Rh5 d5 Kg6 b3 Bd7 g3 Rh4 Ne2 Ne7 g8B Bg4 d7 Na6 d8N Rc8 a8N Be6 d6 Nb4 d7 Bf7 Nb6 Rf4 Nd5 Nf5+ Kd2 e3+ Kc3 e4 Qd2 Be7 Bh3 Nc2 Nf6 Bd6 Na3 Bb8 Nc4 Na3 Kb4 Rc7 Re1 h1Q Ka5 Qh2 Bg2 Qh7 Kb6 Rg4 Na5 Rh4 Nc3 e2 Bf3 e3 Rh1 e1Q Ne2 Ra4 Rh4 Rd4 Rg4 Qd1 Bb2 Qb1 Bc1 Be8 Be6 Bf7 Nc3 e2 Ng8 e1N Ne2 c5 Ndc6 Ne3 d8N Re7 Bd7 Re6 Bh1 Nf3 Bg2 Ng1 Bf3 Bd6 Ka7 Bb8+ Ka8 Red6 Bb2 Rc4 Bf6 Rc2 Be5 Rd4 Bf4
R3q3/2k2p1P/r2PpK2/1n3PNR/qR2pN1p/3qN1N1/1n4N1/1Br1bbQ1 b - - 0 1 illegal: No possible last move, all moves rejected
2RnK1b1/pN1p1n1r/1p2RP2/1Pq1kp2/1BbN2b1/1Q4N1/rN3Pq1/R6N b - - 0 2 illegal: No proof kernel
2K5/1p5B/1QNp1B2/R2P1nRr/1pp1b2r/bPRP3r/1qq1RbR1/B2k4 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 Nc3 a6 Nb5 axb5 d3 Nc6 c3 Nd4 cxd4 b4 Ke2 Kf7 Ke3 Kf6 Ke4 c5 Kd5 h5 g4 e5 a4 h3 f4 c4 g5+ Ke7 b3 e4 g6 Kf6 a5 h2 a6 h4 a7 h3 g7 d6 Ne2 e3 Ra5 Rh5 Bg2 Rh7 Be4 Rh5 Qg1 Rg5 Bb2 Qc7 Ba1 Nh6 g8R Rh5 Rg2 Bg7 Rc5 Rb8 a8R Qa5 Ra7 Qa2 Raa5 Qc2 Qf2 Bd7 Rc1 h1R Qg1 Qb2 Rc3 h2 Qf2 Rh3 Rcb5 Rh8 Qg1 Kf7 f6 Nf5 Rc5 R8h4 Qf2 Ke8 f7+ Ke7 f8B+ Kf6 Rcb5 Bh8 Bh6 Rh5 Bg5+ Kg6 Rc5 Bc6+ Ke6 R5h4 Bd8+ Kh5 Bf6 Bd5+ Kd7 Qc2 Nc1 e2 Kc8 e1B Ne2 Bc6 Qe3 Bf2 Re5 Rg1 Re7 h1Q Re6 Qh2 d5 Rh1 Re5 Be8 Qb6 Bg6 Nd4 Bg7 Nc6 Bh6 Rg3 Qg2 Re3 Kg4 Re2 Rh5 Re8 R3h4 Rg8 R1h3 Rg7 Ng3 f5 Bc1 Rg8 Ba3 Rg7 Kf4 Rg8 Bh7 Rg5 Bg6 Bg7 Qb2 f6 Nf5 f7 Qh2 f8R Qc2 Bh1 Qb2 Rg2 Kf3 Bf6 Bh7 Rfg8 Qc2 Re6 Qe5 R8g4 Ke2 Rg5 Kd1 Re8 Qe1 Re2 Qed2 R2g4 Qb2 Be4 Qdc2 Rg2 Nd4 Bf3 Be4 Bg4 Nf5 Bf3 Rh7 Bh5 Rh6 Bg6 R6h5 Bh7
k3R3/3bPbB1/1nn1NK2/pN2p3/5N2/NrBB4/P1pbPpp1/Q1q1N2r b - - 0 2 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 f5 e5 Na3 Qd7 Rb1 Qe6 fxe6 Kd8 Rb3 Be7 Rc3 Ke8 bxc5 Bd7 c6 Bf8 c5 Bc8 Rc4 dxc4 Kf2 Kd8 Ke3 Kc7 Ke4 g5 Kf5 a5 d4 b5 h4 g3 d5 b4 h5 g4 h6 f6 h7 g2 Nf3 g1Q Ne1 c3 Bg2 b3 Bb2 g3 Be4 g2 Qa1 Bd7 Bd3 Bh6 d6+ Kc8 c7 Kb7 c8N Bd2 Rh6 Nc6 Nb6 Rb8 Nd5 Ka8 Nf4 Qe3 Kg6 f5 e7 Nf6 Rh2 Nd5 Kg5 Nd8 c6 Nb6 c7 Nc6 c8N Qc5 Na7 Rb7 Bc1 b2 N7b5 b1B Bb2 Bc2 Rh1 Bb3 Kf6 Bf7 Rh4 c2 Bc3 Qe3 Rg4 Qg1 Rg8+ Rb8 Re8 Qh1 Nf3 Qc1 Ne1 Bde6 Nh3 f4 d7 f3 d8N f2 Nf4 Bc8 Nf3 Bd7 Ne1 Rg8 h8B Rf8 Bg7 Rh8 Ng6 Rh1 Nf4 Nc4 Nd4 Rb3 Ndb5 Nb6 Nde6+
1K3BN1/3bpPbn/Nk1BqpB1/2b2p1p/2Q4N/4BP2/p3P1R1/1rB3bn b - - 0 1 illegal: No proof kernel
NNq3BQ/Npb1NP2/1k1pn1B1/3KprB1/3b1p2/5PR1/2p1Pp2/n1r1N3 b - - 1 2 illegal: No possible last move
3K4/qppp2n1/nPrR3r/1N1P1k1B/N1Pp1pN1/3pbR2/1R2NN1q/1b3Q2 b - - 0 1 illegal: Other
2Qkr3/5RKp/R1brP3/5Q1b/nP1NN3/b7/1nBP1Npn/1Nr3N1 b - - 0 1 legal: proof: g4 b5 c4 f5 a4 d5 axb5 e5 f4 exf4 cxd5 Qf6 Nh3 Qg5 Ng1 Qd8 h3 g5 b3 a5 Bb2 a4 gxf5 g4 h4 Qg5 hxg5 a3 Bg2 axb2 Bh3 Bd6 Bf1 Bf8 Kf2 c5 e4 f3 Ke3 c4 Kf4 c3 Ke5 f2 d6 c2 f6 c1N d7+ Kd8 f7 g3 g6 g2 b4 Ra2 b6 Ba6 g7 Bc8 b7 Ra6 Qh5 Rb6 Qf5 Rd6 Bd3 f1R Bc2 Re1 Ra6 Kc7 d8N Bd7 Nc6 Nh6 g8N Bg7+ Nf6 Rf8 Nd4 Kd8 Rh4 Bc6 Rf4 Rh8 f8N Rf1 Nd7 Re8+ Qe6 Ng4+ Kf5 Bh8 e5 Nh2 Ng4 Nd3 Nf2 Rc1 Nf6 Nd7 N6e4 N7c5 Qf7 Bf6 e6 Na4 Rf3 Bg7 Kg5 Bf6+ Kh6 Bh8 Qf5 Be5 Na3 b1B Rf4 Ndb2 b8Q+ Ke7 Qb7+ Kd8 Bd3 Bc2 Nb1 Bd1 Bc2 Bf3 Nb3 Bc3 Nd4 Bh5 Kg7 Nc4 Qg4 Bb2 Rf7 Ba3 Qf5 Ncb2 Qc8+
1rBN4/1q2PqrQ/2BB3R/2QpK1nb/2p2PBN/q3B3/2P3qn/6k1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 e5 axb5 g4 dxe5 f5 Qd4 fxe4 Qd2 Qe7 Qd1 Qd8 h4 Bc5 f4 Na6 b4 Kf8 Ra3 Ke7 Rf3 gxf3 g4 Kf7 g5 Ke8 g6 Be7 Rh3 Bf6 Rh1 Bg5 hxg5 Nb8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 g7 Kg4 g6 Kg3 e6 Kf2 b6 h5 e7 a5 b5 c5+ Ke5 c4 b7 h4 b6 h3 Be2 a4 Ba3 h2 Bd6 a3 Kd4 a2 Na3 e3 Ke5 a1Q+ Qd4 Rh7 Nb5 Na6 b8B Qf8 b7 Qa3 Na7 Nc7 Nc6 Nf6 g8B Ne6 g7 Ng5 Be6 Qf7 g8B Rg7 Ba7 Rb8 Qc5 Kg2 Bh7 f2 Nd8 f1Q B2g4 e2 Nf3 e1Q+ Be4 Qee3 Nh4+ Kf2 Bb6 Qg2 Ba5 Nfh7 Bd2 Nf6 Rg1 h1Q Bc1 Rg8 Rd1 Rg7 Rd3 Kg1 Rb3 Nh5 Rb6 Ng3 Ra6 Nf1 Rb6 Ra8 b8Q Nh2 Qb7 Rb8 Qbd5 Bb7 Qd3 Qef2 Bc6 Qe3+ Qe4 Bc8 Bc7 d5 Bd6 Bd7 Bef5 Be8 Bc8 Qa6 Qb4 Qb7 Qb5 Qa3 Qc5+ Qf2 Qh7 Qg2 Rb1 Qg8 Rb3 Bh5 Rh3 Qf7 Nf5 Bg6 Rh6 Bh5 Nh4 Qfe3+ Bxe3+
5q1q/2P2R1q/2Q1R1bp/2nK1R2/rR5R/kQq2pP1/N2P2B1/1br4B b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 f4 Qc7 fxe5 Qd8 b6 Bb7 Nh3 Ba6 Ng1 Bc8 c4 d5 b5 Bf5 Ba3 Ne7 Bb4 cxb4 c5 Ng8 Na3 Bh3 Nc4 Bc8 g3 dxc4 Ra2 f5 Kf2 g5 Ra5 g4 Ra3 f4 Ra4 f3 Ke1 Bh6 Ra5 Nd7 Ra1 Bf4 Ra2 Ndf6 Ra1 Ne4 gxf4 g3 Ra4 g2 Ra1 Ng3 hxg3 Kd7 Ra5 Ke7 Ra1 Ke8 Kf2 Ke7 Ke3 a5 Ke4 h6 e6 c3 c6 Kd6 f5 Kc5 e7 b3 e8B Kb4 b7 c2 b8Q c1Q c7 a4 b6 b2 b7 b1B+ Qc2 a3 f6 a2 f7 Bd7 f8R Ra7 Kd5 Qa3 e4 Ba4+ Bd7 Qc1 e5 Ra6 e6 Rh7 e7 Ka3 e8R Re7 Ne2 g1Q Qc6 Qc3 Nc1 Re1 Rf7 Bac2 Re6 Qf8 Bg2 Ra4 Rh4 Bg6 Bh1 Qge3 Bc8 Qcg7 Bd7 Qh7 Bc8 Qc3 Bd7 Bbc2 Rb1 a1Q Na2 Bcd3 Rbb4 Bb1 Rbf4 Rc1 R4f5 Kb2 Qc8 Kb3 b8R+ Ka3 Rbb4 Qch8 Q8b7 Qag7 Bc8 Nf6+ Ke5 Ne4+ Kd5 Qc3 Qb8 Ra7 Ba6 Nc5 Bf1 Ra6 Bfg2 Ra4 Qbb5 Qb8 Qc4 Qbf8 Qb3+
5Nq1/B1k1qNN1/2ppQP2/bbb2Qb1/5P1p/1r6/1NK1N1PR/B4r2 b - - 0 1 legal: proof: e4 f5 exf5 g5 a4 g4 b4 g3 b5 Nc6 hxg3 Na5 g4 Nc6 g5 Nb8 c4 Nf6 Rh3 Nd5 Rh1 Nc3 b6 Nc6 Bd3 Nd4 Bf1 Ndb5 axb5 Bg7 Ra4 Bh6 Ra1 Bf8 d4 c6 d5 Kf7 d6 Nd5 Ra4 Nc7 dxc7 d6 Rb4 Be6 c8N Ke8 Bd3 Qd7 Be4 c5 Bc6 cxb4 c5 Bb3 Bf3 Be6 c6 Qd8 c7 Kd7 Be4 Ke8 Bc6+ bxc6 Kd2 Kd7 f4 h5 b7 a5 b8B h4 g6 b3 b6 b2 g7 a4 g8N a3 f6 a2 b7 a1B Qh5 Bh6 Ba7 Bg5 Ne2 Bc4 Na3 b1Q Kd1 e5 Rh2 e4 Nce7 e3 Nh6 Bb5 Nc4 Bd4 Nef5 Qg8 Nb2 Qe4 Ng7 Qe7 Nf7 Bc5 Kc2 Re8 b8N+ Kc8 Nc3 e2 Nd7 e1B Ne2 Ba5 Nf8 Kb7 Bb8 Rh7 c8Q+ Kb6 Qh3 Rh8 Ba7+ Kc7 Q3g4 Qd8 Qh7 Re3 Qe6 Rb3 Na4 Bd2 Bb2 Qe7 Qhf5 Qh7 Ng6 Ra8 Nf8 Qg8 Bb6+ Kb7 Nac3 Ra1 Ba7 Rf1 Nd1 Kc7 Ba1 Ba5 Nb2
2N1r2q/N3r1Qn/1qnN1b2/3bk3/1rP3RN/2K2P2/1Q2PN1b/B3B1rq b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 h5 g4 f5 gxh5 c5 dxc5 Qe7 b4 Qh4 Bh3 Qf6 Bg4 fxg4 Ra6 Qg5 Rd6 Qd8 Rd4 exd4 Kd2 Kf7 c4 Ke6 h4 a5 b6 d5 h6 g5 h7 a4 c6 g3 f3 a3 h5 a2 b7 a1B c7 g4 b5 g2 b6 d3 h6 g3 Qe1 d4 Rh4 Nc6 b8Q Ra7 b7 Bd6 Rf4 Ke5 Rg4 Be6 c8N Nf6 Nc3 Re8 h8B Bd5 Nh3 g1R h7 g2 Ne4 Ra4 Qf1 Rb4 Nhf2 Re7 Bg7 Qh8 Bb2 Bc7 Bc3 Bb2 Ned6 Re8 Kd1 d2 Kc2 d1R Be1 Rd3 Qa7 Re3 b8N d3+ Kd2 Ba1 Qa2 Bd4 Qb2 Re7 Na6 Bb8 Nc7 Re8 Ncb5 Bc3+ Kd1 d2 Kc2 Bc7 Nba7 Re7 Kb1 d1Q+ Ka2 Qd4 Kb1 Qb6 Kc2 Bd4 Kd2 Rh1 Kc2 g1Q Qg2 Qh2 Kd2 Rg1 Kc2 Qh1 Kd2 Qd8 h8N Qg8 Bh6 Nh7 Bg7+ Ke6 Ng6 Qh8 Nh4 Bf6 Ndb5 Bh2 Nbd6 Re4 Qg3 Nd4 Qg2 Ke5 Kc3 Nc6 Rg3 Ke6+ Kd3 Rf7 Qc1 Be7 Ba1 Bf6 Qb2 Rf8 Kd2 Re8 Rg7 Rg4 Rg8 Rg7 Kc2 Rge7 Rg3 Nd4+ Kc3 Ke5 Rg8 Nc6 Qg6 Rg5 Qh6 Rg3 Rg4 Rg1 Qg7
1r1nQ2n/2BQ3B/q3Q2R/1QQb2Kn/N3P2R/1bpPP1k1/2rr3b/6q1 b - - 0 1 legal: proof: b4 b5 a4 e5 h4 a5 c4 d5 cxd5 g5 f3 e4 fxe4 gxh4 Na3 Bg7 Nc2 Be5 axb5 Bg7 b6 Bh6 b5 Bf8 Nb4 axb4 Kf2 Kd7 Ke3 Kd6 Kf4 c5 b7 f5 d3 h5 b6 c4 Qa4 h3 Qa2 c3 Qa7 h2 Bd2 b3 Ra6 h4 Ra3 h3 Bc1 b2 Ra6 b1Q Be3 Nh6 Nf3 Be6 Ne5 Nf7 Nd7 Qf6 Nc5 Nc6 Na4 Rb8 Bf2 Ncd8 Bg3 Kd7 d6 Bb3 Rg1 Ke6 d7 h1B Bh2 Ra8 b8Q Qa1 Qbc7 Rb8 Qc5 Rh6 Bg3 h2 Qac7 Nh8 b7+ Nc6 d8Q Bd6+ Kf3 f4 Kg4 Qd4 Kg5 f3 Be5 f2 Qe8+ Ne7 Qeb5 Nc6 Rb6 Nd8 Qg7 Rc8 b8Q Rf6 Qa8 Rb8 Qac6 Rf7 Qe8+ Re7 Nb2 Qa7 Na4 Qa6 g4 Bg2 Qa3 h1N Qac5 Ng3 Kf4 Qc8 g5 Bh3 g6 Nh5+ Kg5 Qb7 Bg2 f1R Nb2 Rd1 Rh1 Rd2 Bg3 Bf5 Rh4 Qg1 Bh3 Bg4 Ra6 Qc6 Bf4 Bd5 Bh2 Bg3 Qh7 Ke5 Rb6 Bf3 Bf5 Qe6 Ra6 Ra7 Qhd7 Raa8 Rb6 Ra2 Na4 Bg4 g7 Rab2 g8Q Ra2 Qef7 Qd6 Rb7 Qa6 Rb6 Rab2 Bh7 Bf3 Qfg6 Bg4 Kh6 Kf4 Q6e8 Bb3 Rg6 Rbc2 e3+ Kf3 Kg5 Bge6 Rh6 Bed5 Qge6 Bc7+ Bg3 Kg2 Bf2 Bh2 Bg3 Kf3 Kf5 Kg2 Bc7 Kf3 Rf4+ Kg2 Kg5 Kg3 Rh4+
rq1Nr3/2Qq3r/1Nbp1BP1/P1N2nR1/q3N2P/kQ1N4/3R3n/b2nK3 b - - 0 1 legal: proof: d4 a5 g4 f5 f4 c5 dxc5 h5 e4 g5 exf5 Qc7 b4 axb4 Be2 Ra6 fxg5 Ra3 g6 Qd8 g5 Ra8 Bg4 hxg4 a4 b5 c4 e5 h4 Ke7 g7 g3 c6 e4 g6 b3 c5 g2 c7 b4 a5 b2 c6 b3 Qh5 Kd6 f6 e3 f7 e2 Kf2 e1R Ra4 Re8 Qb5 Ne7 g8N Bg7 f8N Nf5 Nc3 b1Q Bb2 Bb7 c8Q Rh7 c7 Nc6 Rh2 Ne5 Rg4 Nf3 Nh6 Bc6 Nh3 g1N Rhg2 Qa2 Ne6 Ne2 Nhf4 Qa4 Nd3 Nh2 Ke1 Be5 Ba1 b2 Qb3 Bd4 Rg5 b1Q+ Kd2 Qb2+ Ke1 Bf6 Nec5 Bd4 Qd1 Qb8 N3e4+ Kd5 Qb1 Kc4 Nf7 Nc3 Rd2 d6 Qd7 Bh8 c8N Nd1 Qc7 Qd7 Nd8 Bb2 Nb6+ Kb5 Nc1 Kb4 N1d3+ Ka3 Qc2 Bh8 Bf6 Bg7 Be7 Be5 Bf6 Ba1 Qb3+
n3nKR1/brBb1P1k/1rp3R1/1rR1B1Q1/4PN1R/4qP1q/Q2Rq3/6b1 b - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 f5 axb5 f4 d6 f3 d7+ Kf7 gxf3 e6 f4 Kf6 f5 Ke7 d4 h5 d5 Nf6 d6+ Kf7 Nc3 Ng8 Nd5 exd5 Bh3 Qg5 Bg4 hxg4 Qd3 Qe7 Qd1 Qd8 Kd2 a5 Kc3 g5 Kd4 Kg7 Ke5 c6 Ke6 d4 h4 g3 e4 g4 b4 g2 f6+ Kg6 h5+ Kh7 Kf7 d3 Bb2 Kh6 f3 d2 b6 g3 b5 a4 b7 a3 b6 a2 Qc2 d1Q Nh3 g1Q Be5 g2 Rc1 a1R Qa2 Na6 b8B Qe2 b7 Nc7 Rc4 Qgf1 Rg1 Rb1 Rc3 Rb5 Rc4 Kh7 h6 Ra7 Rc2 Na8 Rc3 Qb6 d8Q Qb2 d7 Bc5 Nf4 Qbe2 Bbd6 Bf2 b8R Qd4 Ke8 Qdd2 f7 Nf6+ Ke7 Rc7 Rc4 Ba7 Rc3 Rf8 Rc5 Kh8 h7 Kg7 h8R Qde3 Rh6 Rh8 Rgh1 g1B R1h5 Qh3 Rh4 Rcb7 Bc7 R7b6 Bed6 Nh5 Rg6+ Kh7 Be5 Rg8 Qe8 Rh8 d8R Bg4 Rd2 Bd7 Qd8 Rg8 Kd6 Rf8 Qg5 Rg8 Rg4 Ng7 Ke7 Rc8 Bcd6 Rc7 Rg8 Rcb7 Kf8 Ne8 Bb8 Bc8 Bbc7 Bd7 Rh4+
1Nb1b3/Q1BRQPqp/n5BP/1qR1P2K/n2n1kr1/Qq2r3/Q4r2/2Q5 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 e4 e5 a4 exd4 axb5 Ba6 Ra5 Bb7 Ra1 Bc8 f4 Bd6 e5 Qb6 Nd2 Be7 Ne4 fxe4 g3 Bg5 f5 Bf4 gxf4 Qd8 Ke2 Kf7 c4 d5 h4 a5 b6 g5 f6 Ke6 b7 Kf5 f7 a4 f8Q+ Nf6 c6 e3 Kf3 a3 c5 a2 h5 d3 c7 e2 h6 e1R c6 d4 Qa3 d2 Qda4 d1Q+ Ne2 d3 Bd2 Na6 b8Q Ne4 Rc1 a1N Qa7 Rf8 Rc5 Nc2 Ba5 d2 Qa2 Qd6 Q4a3 Nc3 Kg3 g4 Kh4 g3 Nd4+ Ke4 f5 g2 f6 g1Q Bd3+ Kf4 Bg6 Qd5 f7 Rg8 Rh3 Na4 Rd3 Re3 Bb6 Qb1 Kh5 Qb5 Ba5 Qdb3 Bb6 Bd7 c8Q Be8 c7 Qg2 Nc6 Nd4 Qe6 d1B+ Kh4 Bf3 c8Q Bg4 Qee7 Qg1 Qcc7 Bc8 Kh5 Rb8 Ba5 Rb6 Nb8 Rf6 Be4 Qg7 Bg6 Kg3 Qc6 Rf2 Bc7 Kf4 Qh1 Qf6 Qhc1 Qh8 Be4 Rg4 Bg6 Qg7 Rd2 Nc2 Rdd5 Nd4 Rd7
N2bK1kN/1N2p1P1/Pr1q4/1R3qnB/Q2q1N2/Pn1r2Rn/N3Q3/2r1b3 b - - 0 1 legal: proof: e4 a5 c4 f5 f4 fxe4 b4 d5 cxd5 g5 bxa5 Nh6 f5 Ng8 g4 Bg7 Bb2 Qd7 Be5 Qd8 Bg3 Bd7 Bf4 gxf4 h3 Bb5 g5 Be2 Qc2 Bf3 Qd1 Bg4 hxg4 Bf8 Kf2 Kf7 d4 c5 a3 h5 a6 b5 d6 c4 g6+ Kg7 g5 c3 d5 b4 d7 c2 d6 c1R Ne2 h4 Rg1 b3 Nbc3 f3 Ke3 h3 Kf4 f2 Ke5 b2 Ke6 b1Q Nf4 h2 Na2 h1N Qa4 e3 Be2 f1Q Bh5 e2 Rg3 Qb2 Rb1 Qd4 Rb5 Nh6 f6+ Kg8 g7 Qc7 d8N e1B d7 Nf2 Nf7 Nc6 d8N Na5 Nb7 Nh3 Nd3 Rh7 Nh8 Nf7 Nf4 Qff2 Rd5 Qcc5 Kd7 Ra7 Ke8 Rh6 Re5 Qcd6 Rb5 Nb3 Qa5 Ne5 Qa4 Nf3 f7+ Kh7 g8N Bg7 f8Q Be5 Qf6 Qc2 Qe6 Qf5 g6+ Kg7 Na5 Nfg5 Nf6 Rb7 Nd7 Rb6 Nb7 Rh7 Nf7 Kg8 g7 Rh6 Qec4 Rf6 Nh8+ Re6 Nd5 Bf4 Qc2 Re3 Qe2 Be5 Nf4 Rd3 Qf1 Qc6 Qe2 Bc7 Nf7 Qcd6 Nh8 Rbc6 Nb6 Bd8 Na8 Rb6 Rg2 Qg1 Rg4 Qgd4 Rg3
1bkB1N2/PN3R2/N1bP1N2/3q4/B3QK1P/bp3n1q/nrr1N3/r5Qq b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 g5 c4 d5 cxd5 Qd7 Nc3 Qd6 Nb1 Qd8 fxg5 h5 g4 Nc6 g6 Nb8 g5 Ra5 Bg2 Ra7 Bf1 Ra8 a4 Qd7 Ra3 Qd6 Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 Ke3 c5 h4 e5 d4 b5 f6 b3 a5 c4 a6 b2 f7 e4 g7 g3 d6 g2 d5 b4 g6 b3 Nc3 b1R Qe1 Rb2 Nh3 g1B+ Qf2 Bh2 Qg3 Nc6 Na4 c3 Bb5 c2 Qg1 Nf6 g8N Bb7 g7 Nh7 Nf4 Kc8 Nc5 Ng5 Ba4 Nb4 Nf6 Nf3 g8Q Na2 Q8g2 Bc6 Ne2 Rh6 Bd2 c1Q a7 Qf1 Qg6 Qh3 Na6 Rb8 Bc3 Rb7 Ba5 Rc7 Qh7 Be7 f8N Rg6 Qe1 Rg1 Qf2 Re1 Rf1 Ra1 Qg3 Qdd7 Kf4 e3 Qe4 Qde6 Nc1 e2 d7+ Kb7 d8N+ Kc8 Bb6 e1Q Ne2 Ba3 Nb7 Qf7 Rf2 Qh1 Rf1 Bb5 Ba5 Rcc2 Bd8 Bc6 Rf2 Bg1 Rf1 Bgc5 Qg1 Bd6+ Ke3 Bb8 d6 Qd5 Kf4 Rd2 Rf2 Rbc2 Rg2 Rb2 Rg7 Rdc2 Rf7
r2q2nr/PK3PN1/1Q1R2Q1/bB3B1P/b3p3/2nb1qQ1/4qQ2/1N1kn2Q b - - 0 1 legal: proof: b4 d5 e4 f5 exf5 a5 bxa5 g5 f4 d4 f6 d3 a3 Qd5 f5 Qd6 cxd3 Qd7 d4 Qd6 d5 Qd8 g4 h6 a4 Nd7 Bb2 Rb8 Be5 Ra8 Bf4 Nb8 Ra3 Qd7 Rg3 gxf4 g5 Qd6 g6 Qd8 Rg5 hxg5 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 h4 e5 a6 c5 h5 b5 d6 f3 Kd5 g4 f7 c4 g7 f2 a5 g3 f6 c3 a7 g2 d7 c2 a6 Kb3 Nh3 g1Q Ng5 b4 Ne6 Rh6 Bb5 f1B Qf3+ Qe3 Qg3 Be7 f8Q Bd3 Rd1 c1Q f7 Bf6 Qd6 Kc2 Kc5 Qe2 d5 b3 Qc6 b2 d6 Qf4 Qh1 Ne7 g8Q Qff3 Q8g6 Nbc6 Ng7 Rh8 Qf2 Nd4 Qfg3 Rb8 a8B Ng8 Be4 Ra8 Bf5 e4 a7 Bg5 Qf2 Bd2 Qgg3 Ba5 Kd5 Qf6 d8Q Bd7 Qb6 Be8 d7 Qd8 Nc3 b1N Qbg6 Nb3 Kc6 Nc1 Na4 Nc3 Kb7 Bc4 Rd6 Nd3 Qfg2 Ne1 Q2f2 Na2 Nc3 Bd3 Nb1 Nc3 Q6g4 Kd1 Qg6 Qg5 d8Q Qgd2 Bc4 Ba4 Bb5 Qg5 Qc7 Qd8 Qcb6
4r1Qb/4r1bP/4QRBQ/q1b4K/4NQr1/2bQn1pn/1RnPkP1N/8 b - - 0 1 legal: proof: g4 f5 gxf5 d5 a4 b5 axb5 h6 c4 Kd7 e4 dxe4 b3 Ba6 Bb2 Ke8 Bf6 Bb7 Bg5 Bd5 cxd5 hxg5 Ke2 Kd7 h4 Kd6 h5 Kc5 b4+ Kd4 f6 e5 d6 c5 b6 a5 d7 e3 Kf3 e4+ Kg4 e2 h6 Kd3 h7 a4 b5 e3 f7 c4 b7 c3 b6 c2 Na3 c1B Rh6 Bc5 f8Q Ne7 Nc4 a3 Nd6 a2 Rh1 Bb2 Qg8 Nbc6 b8Q Ne5+ Kh5 g4 b7 g5 Qe6 g3 Rh2 g2 Qeb3+ Bc3 Qe1 g4 Nh3 g1B Rb1 a1B Qa2 Nd5 Rb4 Rg8 Qaa7 Ng6 Rb5 Qa5 d8Q Rg7 Rg2 Bh2 Rb2 Bhe5 Ne4 g3 Ng1 Re7 Qab6 Bh8 Rh2 Rg7 Nf3 Nf4+ Kh4 Rg8 Qh6 Nh3 Kh5 Rg4 Qbf4 Bcg7 Qd7 Re8 b8Q Re7 Qg8 Re8 Rc2 Bac3 Rb2 Re7 Qde6 Re8 Qc1 Re7 Bg2 e1N Qb1+ Ke2 Rh1 Nc2 Nh2 Kd3 Qf1+ e2 Qb1 e1R Bf3 Rg6 Bg4 Ne3 Bf5 Rg4 Bg6 Qa3 Qba2 Qa5 Qad5+ Ke2 Qdd7 Ra1 Rhb1 Ra4 Rb6 Rd4 R1b2 Re8 Qd8 Rd7 Rc6 Rde7 Qd3+ Ke1 Qa2 Kd1 Rf6 Ke1 Qae6 Kd1 Qdd5 Ke2 Qd3+
3R2b1/kB1qQnPb/Q3P1N1/bn3Q1r/2rn1B1r/Qr3R2/3P3p/1Q2K3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 f4 e5 c4 exf4 cxd5 Qf6 Na3 Qa6 Nc2 Qh6 axb5 Qd6 b6 Qf6 b5 Qd8 Nb4 axb4 g4 Kd7 e4 h5 b7 c5 d6 f5 b6 Kc6 e5 b3 g6 f3 d7 h4 g7 f4 g5 b2 g6 b1N Bd3 c4 Rh3 c3 Bc4 c2 Bf7 f2+ Ke2 f1B+ Kf2 f3 Ke1 Ra3 Qe2 Rh5 Bb2 Rb3 Ra8 Bb4 Qa6 Bd3 Ne2 Nh6 g8Q Na3 g7 Nb5 Qh7 Ba5 Nf4 Bf5 Be6 Nf7 Ng6 Be4 Rg3 h3 Bd5+ Kc5 Ba1 Nc6 b8Q h2 Qba7 Ncd4 Bb7 Qc7 d8Q Be6 Qe8 Qd7 Rd8 Rh4 Qh5 B6d5 Qf5 c1R+ Kf2 Rc4 Ke1 Nfd6 Qe7 f2+ Kd1 Bg8 Rf3 Bed5 Bc3 Bh7 Ba1 Bdg8 e6+ Kb4 Bc3+ Ka4 Bb4 Nf7 Bd6 Rh5 Bf4 Rh4 Qb8 Rh5 Qbe5 f1R+ Qe1 Rf2 Qe3 Rg2 Ke1 Rg4 Bc8 Rgh4 b7 Qc7 b8Q Qb7 Qef6 Qd7 Bb7 Kb4 Qb1 Kc5 Qc7+ Qc6 Qce7+ Qd6 Qa8 Kb6 Qff5 Qd7 Qc8 Ka7 Qed3 Rb2 Qda3 Rbb4 Qc6 Rb3 Qa6#
Q7/1RR1R1bq/2R1n1qn/r4R2/3q3Q/1KP2b2/p1P1PBr1/2k1NnnN b - - 0 1 legal: proof: a4 c5 Na3 e5 Nb1 b5 axb5 c4 Nh3 c3 dxc3 Qb6 Ng1 Qd8 g4 f5 f4 h6 Bh3 exf4 gxf5 h5 Bg4 hxg4 Kd2 Ke7 b4 Kf6 h4 Ke5 f6 Ke4 f7 a5 h5 g5 h6 d5 b6 d4 b7 g3 h7 f3 b5 f2 b6 f1N+ Ke1 a4 Rh2 d3 Nh3 g4 Be3 g2 Bf2 Nd7 b8R g1Q b7 Bg7 f8R g3 Rf5 g2 Qc1 a3 Kd1 Qa5 Qh6 Nf8 Kc1 Qc7 Qh5 Be6 Re8 Nh6 b8R Ra5 Rb7 Rg8 h8Q a2 Kb2 d2 Re7 Qd7 Rc7 d1Q Rc6 Q1d6 Qh4+ Qf4 Rh1 Qd3 Rec7 Bd5 Re7+ Ne6 Rcc7 Bb7 Kb3 Qh2 Rc6 g1N Rec7 Qg4 Re7 Qe5 Nd2+ Kd5 Rd1 Qg6 Nf3 Ba8 Rb1 Qh7 Nf4+ Ke4 Ne1 Qed4 Rh3 Qg3 Nh5+ Qg4 Rhf3 Bb7 Rfc5 Ba8 Rff5 Bb7 Bg3 Ke3 Bf2+ Kd2 Ng3 Qgg6 Nh1 Ba8 Rcc7 Bf3 Rb2 Kc1 R5c6 Rd8 Qf8 Rdd5 Qa8 Re5 Rf6 Rg5 Rf4 Rg2 Rf5 Re5 Ka3 Rd5 Rbb7 Ra5+ Kb3
r2k4/1qn1nR2/B2Q4/2K2p1b/4Pq1P/1PB1Q1R1/QNrbQr2/1Q1bb3 b - - 0 1 legal: proof: c4 a5 f4 e5 g4 exf4 b3 h5 gxh5 d5 cxd5 a4 Na3 b5 Nc4 a3 Nb2 axb2 a4 Qf6 axb5 Qd8 Kf2 b1R h4 g5 e4 c5 d4 f5 b6 c4 d6 f3 Ke3 g4 h6 g3 h7 g2 b7 f2 d5 c3 Kd4 c2 d7+ Ke7 d6+ Kf7 Bb2 c1Q Ne2 g1B Ra7 Bh6 Nf4 Qe7 d8Q Be6 d7 Na6 b8Q Kf6 Qd2 Bf7 Rh3 Bh5 Q8a5 Qg7 Kd5+ Ke7 Nd3 Be3 Bd4 Rb2 Qbb6 Rc8 Be2 f1B Qa2 Bgf2 Qb1 Rc4 Rg3 Be1 Qd1 Rd2 Nb2 Rcc2 Qa5 Bh3 Qaa2 B3g4 Bb5 Re2 Bc3 Rf2 Qd3 Bd1 Qe2 Qd2+ Kc4 Qd6 Rb7 B3d2 d8Q+ Ke6 Qg5 Qb8 Qge3 Qf4 Ra7 Qgc7+ Kd4 Ke7 Bc4 Ke8 Kd5 Qb6 Rf7 Qb7+ Kd4 Nc7 Ba6 Ne7 Kc5 Rf8 h8Q Kd7 Qh6 Ra8 Qc6+ Kd8 Qd6+
3nrbQK/2rQ2Q1/NQRn2r1/1Bp1q1P1/4b2P/5NqP/1bR4r/1k2Q3 b - - 0 1 legal: proof: c4 b5 f4 e5 a4 g5 fxg5 d5 d4 h5 g3 h4 gxh4 Rh7 Be3 Rh8 axb5 dxc4 d5 Ne7 Bf2 Ng8 Bd4 exd4 Kf2 Ke7 Kg3 Kd6 Kf4 Kc5 Ke5 Kb4 e4 f5 b3 c5 b6 a5 d6 f4 d7 d3 b7 f3 h3 f2 Qg4 c3 Ke6 c2 Kf7 c1B Na3 Kc3 b4 Kb2 b5 d2 b6 d1R e5 a4 e6 Ne7 Nf3 Nf5 e7 Nc6 b8Q Qc7 e8Q Rg8 b7 Rd2 Rh2 Qg3 d8Q Rg6 Nc2 a3 Bb5 f1R Qde7 a2 Nb4 Re1 Qec7 Ra7 Na6 Rc2 Qed7 Re8 Qe4 Re2 Qa8 Rd2 b8Q Bb7 Qe1 Rc2 Rh1 Rh2 Qb6 Kc2 Qbe5 Bb2 Qg7 Nd8+ Kg8 Be4 Kh8 Rc7 Rf1 Nd6 Rc1+ Kb3 Rc4 a1Q Rc2 Ka2 Rff2 Qd1 Qd5+ Kb1 Qg8 Qc1 Nd4 Qd1 Rf6 Qc1 Nf3 Qe5 Qd2 Qg1 Re6 Qgg3 Qe2 N6b7 Rc6 Nd6 Qe1+
3nRN2/1r3Q1q/3qb1n1/1PqR1qRk/P2b1r2/R1p5/3BP1nN/1QRK4 b - - 0 1 legal: proof: f4 a5 g4 e5 c4 d5 cxd5 h5 gxh5 exf4 b4 a4 Bh3 Ra6 Bf5 Ra7 Bc2 Ra8 Bb3 axb3 Qc2 b5 Qc6+ Bd7 Qb7 Bf5 Qxb5+ Bd7 Qb7 Bc8 h4 f5 a4 Kf7 d4 g5 h6 Kg6 h7 c5 d6 g4 b5 c4 d7 b2 d5 c3 d6 g3 Bd2 f3 Qe4 g2 Bc1 f2+ Kd1 f1N Na3 b1Q Nc4 Kh5 Nf3 g1Q Nce5 f4 Nh2 f3 Ra3 f2 Ng6 Bg7 Nf8 Ra7 Qe8+ Qbg6 Bd2 Ne7 Qf7 Qc7 d8Q Bd4 d7 Rb7 Qde8 Qd6 d8R Nbc6 Qf5+ Qg5 Qef7 Be6 Qb1 Qgc5 Re8 Rg8 Rg1 Rg7 h8R+ Rh7 Rg8 Nd8 Qg7 Qe4 Qf7+ Ng6 Rg5+ Kh6 h5 Ne3+ Kc1 Ng2 Rd5+ Qef4 Kd1 f1Q+ Kc2 Qf3 Kd1 Qd3 Rg7 Qf5 Rg8 Kg5 h6 Kh5 Rg7 Rh8 h7 Rg8 h8R+ Qh6 Qe7 Qh7 Qf6 Ne5 Rg4 Rg5 Qf7+ Ng6 Rg3 Rg4 Rg8 Re4 Rf3 Rf4 Rf1 Kh6 Re1 Ne5 Rg3 Ng6 Rg5 Qh3 Kc2 Qg4 Rc1 Qh3 Rg3 Qf5+ Kd1 Kh5 Rg5+
rRNk4/3P3K/Q3R1Pb/n1r2bbR/3nR2p/1N1BQ3/2P1qbr1/2q3R1 b - - 0 1 legal: proof: h4 f5 a4 g5 b4 gxh4 e4 c5 exf5 b5 axb5 d6 bxc5 Ba6 Bb2 Bc8 Be5 dxe5 Ke2 h5 Kf3 a5 Ke4 h3 d4 a4 g4 a3 f4 e6 d5 h2 d6 a2 c6 Ra5 g5 Ra6 c7 Bh6 f6 Qd7 f5 Rh7 b6 Nc6 b7 Na5 b8R Qe7 Nd2 Rc6 Nh3 Rc5 Nf2 Rg7 Qc1 h4 f7+ Kd7 f8R Qe8 f6 Ne7 f7 Nf5 Bc4 Nd4 Re1 h1R Rab1 a1B Nb3 Rg1 g6 Rg2 Bd3 Rg8 Qe3 Bc3 Rg1 Bd2 Rbe1 Qe7 Re8 Bc1 Qe2 Bcg5 f8R Rh8 Rf4 Rg8 Ke3 e4 Rf8 e5 Rf5 Rd8 Qd2 Ke8 Re2 Bd7 c8Q Be6 Qb7 Rdc8 d7+ Kd8 Qa6 Qe8 Rf6 Bf5 Re6 Qe7 Ng4 Qe8 Nf6 Qe7 Nd5 Qe8 Rb7 Ra8 Nb6 Qe7 Nc8 Qe8 Rb8 Qe7 Qc1 Qe8 Kd2 e3+ Kd1 Qe7 Re4 Qe8 Rf2 e2+ Ke1 Qe7 Qe3 Qe8 Kd2 e1B+ Kd1 Qe7 Rff4 Bf2 Rg4 Bf6 Rg5 Qe8 Rh5 Bfg5 Rf4 e4 Kd2 Re5 Qe2 e3+ Kc3 Ra7 Re4 Ra8 Qd2 e2 Qe3 Qe7 Kd2 Nb7 Kc3 e1Q+ Kc4 Qc1 Kc3 Ra5 Kc4 Ra3 Kd5 Na5 Ke5 Qe8 Nc5 Rc3 Nb3 Bf4+ Kf6 Rc5 Bb5 Bhg5+ Kg7 Bh6+ Kh7 Bfg5 Rd6 Qe6 Be2 Qc4 Rde6 Qd3 Bf1 Qdd2 Bb5 Qe2 Bd3
K3Bkn1/Pr6/pP3nn1/3R3r/q3n3/1qR1PBB1/1Q2QN2/b2bBb1B b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Kd7 Qa4+ Ke7 Qxa7 Nd7 a4 Ne5 a5 Ke8 a6 Nc6 Qb6 Nb8 a7 Bc5 Nc3 Qd7 Na2 Bf8 Nb4 Qd8 Na6 bxa6 Kf2 f5 Kf3 c5 g4 h5 d4 h4 b4 h3 d6 c4 g6 c3 g7 c2 d5 h2 b5 Ne7 g8B Nec6 e3 Qd7 g5 Qb7 d7+ Ke7 d8B+ Ke8 d6 Bg7 d7+ Kf8 g6 Rh4 Ra3 Ba1 Bf7 Rh5 Bd2 c1N Bg2 Nd3 Bc7 Ne7+ Bd5 Qc6 Nh3 Ng8 Rd1 h1N Be1 Ng3 Nf2 Ne4 d8Q+ Qe8 Bb7 Nd7 Bh1 Ndf6 Rc3 Rb8 Qdd4 Qd7 Qc4 Qd4 Qa2 Qa4 Qe2 Bd7 Bc6 Rb7 Rd2 Be6 Be8 Bb3 Qd4 Bd1 b6 Nb4 Be5 Nc6 Qb4+ Nce7 Qb2 Qb3 Rd5 Nc5 Kg2 f3+ Kg3 Nce4+ Kf4 Qa4 Bb8 Qb3 Ke5 Qa4 Ke6 Qb3 Bg3 f4 Nd3 f2 Bf3 f1Q Nf2 Ng5+ Kd6 Qh3 Bh1 f3 Kc5 Qg4 Kd6 Nc8+ Kc6 Nge4 g7+ Ke7 Nd3 f2 Bf3 f1B Nf2 Ncd6 Bh1 Nf7 Bf3 Nh8 Bh1 Nh6 g8B Kf8 Be6 Qf4 Bg4 Nhg8 Bgf3 Ng6 Rd4 Rb8 Rd5 Qh4 Kc7 Rb7+ Kc8 Rc7+ Kb8 Rb7+ Ka8 Qg4 Rdc5 Qd7 Ra5 Qda4 Rd5
2b1qBB1/N6p/3PB3/q1kQ4/PR2nr2/1Q1q1P1q/rn2q1nN/1BK2B2 b - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 d5 hxg5 a5 b4 axb4 e3 d4 a4 f5 Nd2 Bg7 Ra3 Bf6 Rc3 d3 Rc4 Bc3 Re4 Bd4 exd4 fxe4 g4 Kd7 c4 Kc6 g6 e5 f3 b5 g5 b3 g7 b2 g6 b1Q Rh2 e3 Ne4 e2 Kd2 e1N Rh5 b4 Nf6 e4 Ba3 b3 Ne2 b2 Ng4 Ng2 Qb3 Qa5+ Nc3 Nf6 g8Q Na6 g7 Rb8 Nh2 Nb4 Rh4 Qa1 Qf7 b1Q Nb5 Rf8 g8B Qba2+ Qc2 Qc3+ Kc1 e3 Qh5 e2 d5+ Kd7 Na7 Ne4 c6+ Kd6 c7 Kc5 Qg5 Rf4 Qh5 Qe5 Qb3 Qe6 Qe5 Qh3 Qd6+ Kd4 c5 Rb7 c6 e1Q+ Qd1 Qee2 Qb3 Rb8 Qe5+ Kc5 Rg4 Nd2 Qg5 Qe8 Qh5 Ne4 Qf7 Ba6 c8B Qe2 Bf5 Bc8 c7 Rb5 d6 Rb6 Bb2 Rb7 Bg7 d2+ Kb2 Rb6 Bf8 Nd3+ Kc2 Nb2 Qh5 Ba6 c8B Rb5 Bce6 Bc8 Rg7 Rb4 Rb7 Rc4+ Kb1 Rc2 Rb4 d1Q+ Ka2 Qdd3 Kb1 Nc4 Qf7 Ra2+ Kc1 Nb2 Qb7 Ng5 Be4 Qd4 Bd3 Ne4 Bb1 Qdd3 Q7d5+
2r3k1/2rp3N/RnN1R3/2NPN1q1/1QP2N1n/K1nnB3/n6P/nQ1b3n b - - 0 1 legal: proof: f4 c5 a4 e5 b4 exf4 bxc5 b5 axb5 f3 g3 Qe7 Ra2 Qh4 Ra1 Qd8 Bh3 h5 Bg4 hxg4 Kf2 f5 Ke3 f2 Kd4 f4 Kc3 f3 Ra2 Bd6 Ra1 Bf4 gxf4 Qh4 Ra3 Qe7 Ra1 Qd8 Kb2 Kf8 d4 f1N c4 g5 e4 a5 f5 a4 f6 g3 f7 f2 e5 a3+ Ka2 g2 e6 g4 b6 g3 c6 Ne7 b7 Na6 b8Q Nf5 c7 Ra7 Qa8 Nh4 Kb3 a2 Be3 Nb4 Ne2 g1N Qc2 g2 Qb8 Ng3 Nbc3 f1N Ne4 Nd3 Qb1 Bb7 c8N Qg5 Nc5 Bf3 Qb4 Rc7 Nf4 N1e2 Ka3 g1N Ne7 Nec1 Nc6 Ng1e2 e7+ Kg7 f8N Nc3 e8N+ Kg8 Nh7 Bd1 Rg1 Nh1 Rg3 Nd2 d5 Nde4 Rg1 Na4 Nd6 Nec3 Nf7 Nb6 Rg2 Kg7 Re2 Rhc8 Bg1 Kg8 Re6 Qg7 Nfe5 Qg5 Q1b3 Qg4 Be3 Qg5 Rb1 a1N Rb2 Nf3 Ra2 Nh4 Qb1 Qg6 Rg2 N1a2 Rg5 Qg7 Rf5 Qg6 Rff6 Qg5 Na7 Rb7 Re7 Na8 Ra6 Nb6 Nac6 Rbc7 Re6
Q2B1Q2/1r4n1/1qQKBq2/b1NR1rPk/1r3PQ1/nP2Rp2/4q3/n2Q2r1 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f5 axb5 fxe4 Ra5 g4 Ra6 Qd6 Ra1 Qd8 f4 Bg7 Nf3 gxf3 g4 Bb7 Nc3 Kf8 Ne2 Nf6 Ng1 Ng8 h3 Bc8 g5 Bg4 hxg4 Ke8 Qe2 Bh6 Qd1 Bf8 Kf2 Kf7 Ke3 Kg6 Kd4 h5 Kc5 a5 d4 e5+ d6 a4 b3 e3 b6 e4 d5 e2 b7 e1R Qc2 a3 Be2 h4 Bf1 h3 Qc4 h2 Bb2 e3 Rc1 e2 Qd4 a2 Bg2 a1N Qd1 Qf6 Rc3 Ra7 Re3 Ne7 d7 Nf5+ d6 Rh5 d8Q Nc6 b8Q Na5 Qb7 Nc4 Qc6 Rb7 Bh3 Ng7 Qa8 Na3 Kd5 Rf1 d7 e1Q d8Q Bb4 Qf8 Ba5 Ne2 Rg1 Nc3 Qe2 Na4 Rb4 Bd4 Rh7 Bb6 Rh5 Qc3 c5 Bd8 c4 Nc5 Qb6 Qcc1 c3 Ke5 c2 Kd5 Rf1 Rg1 h1Q Rg3 Qb7+ Kd6 Rg1 Rg2 Qf7 Rg3 Qhh2 Rg2 Qb5 Rd2 Qhe2 Rd5 Qb6+ Qc6 Kh7 g6+ Kh6 Qcd2 c1R Qa2 Re5 g5+ Kh5 Be6 Qf6 Qb2 Qd3 Qg2 Qe2 Na6 Rc5 Rd4 Qa7 Qa4 Rc7 Nc5 Kh4 Qae8 Nh5 g7 Rf5 Qc6 Qb6 Rd5 Rf7 Bc7 Re7 Qa8 Rf7 g8Q Ng7 Qgf8 Kh5 Bd8 Rb7 Qg4+
7b/4PnPB/pBBbP1b1/nbrQN3/RK1b4/B2b4/4BkqN/1n1Q4 b - - 0 1 illegal: No proof kernel
Q1K1k3/1Q1r1r1N/1b1p1qN1/1p2B1P1/1NN1PnPn/1b4R1/b1NR4/q2q4 b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 f4 axb4 fxe5 Be7 Bd2 Bd6 Bc1 Bf8 h4 g5 hxg5 Ne7 e3 Ng8 a3 Bh6 Bc4 Bf8 Ba2 b3 Qg4 bxa2 Qe2 Ra5 Qd1 Ra8 Ke2 h5 Kf3 f5 Kf4 b5 g4 h4 c4 h3 a4 h2 e4 d6 a5 Nc6 e6 Nb8 c6 Nh6 c7 Bd7 c8N Qf6 c5 Qd4 c6 Ra7 e7 Ng8 c7 Bg7 a6 Rh3 Bb2 Rc3 Na3 Bh6 Nc2 Qf6 Nb4 Nc6 Ne2 Ne5 Rg1 h1Q Nb6 Bg7 c8N Nf3 Qd5 Nh4 Nc4 Be6 Rg3 Qd1 Nd4 Rd7 a7 Rc1 Rb1 a1Q a8Q Rc2 Qdb7 Rf2+ Rf3 Bf7 Ndc2 Bd5 Be5 Bh8 Na5 Ba2 Rb3 Bg7 Rd3 Bh8 Rd2 Bb3 Ke3 f4+ Kd3 Ba2 Rg3 f3 Nc4 Rf1 Ke3 f2 Kd3 Qf7 Ke3 Nf6 Kf4 Nh5+ Ke3 Qac1 Kd4 Qf6 Kd5 Nf4+ Kc6 Qa1 Kb6 Rg1 Ka7 f1B Kb8 Be2 Rgd3 Rf1 Rg3 Kf7 e8N Rf2 N4b6 Bec4 Ne7 Bcb3 Ng6 Rf1 Kc8 Rf3 Ng7 Rf2 Ne6 Ke8 Nc4 Qg7 Na6 Ne2 Bc3 Rff7 Bb2 Nf4 Nef8 Qc3 Nh7 Bd4 Nab4 Bb6 Qa3 Qh8 Qaa8 Qf6 Be5
6K1/3Q1p2/2P2Q1Q/1q1B2Pb/b3P1k1/r1bRnq2/1r1rpQ2/BNR1n2Q b - - 0 1 legal: proof: d4 c5 a4 b5 axb5 g5 e4 Bh6 h4 Bg7 hxg5 Bf8 Nc3 e6 Nd5 e5 Ne3 cxd4 f4 dxe3 fxe5 Bh6 Qd5 Bg7 Qd1 Bf8 Ke2 Ke7 Kd3 Ke6 Kd4 h5 b4 a5 g4 d5 c4 h4 g6 h3 c5 a4 g5 h2 c6 a3 g7 a2 b6 Bd7 b5 Qc7 b7 Ne7 g8Q Ra3 b6 Bg7 Ne2 Na6 b8Q Qb7 Qgd8 Nb4 Nc3 Nd3 Nb1 Ne1 Bc4 e2 Qa7 Nf5+ Kc5 Ne3 Bb2 Qa6 b7 Qb5+ Kd4 Bc8 b8Q Bd7 Rg1 h1Q Rg3 Qf3 Qf8 Bf6 Qh6 Rd8 Qbb6 Bc8 Qbc7 Rd6 Qd8 Rb3 Bc3 Rb2 Bb3 Nd3 Qdh1 Ne1 Na3 Rd7 Rc1 a1R Nb1 Ra3 Ba2 Qb3 Kc5 d4 Qab6 d3 Qdh8 Rd2 Ba1 Rb2 Q8g7 d2 Qgg6 Ke7 e6 d1B Qa7 Qb8 Bd5 Ba4 Qf5 Bg7 Qff6+ Kf8 Kd4 Qb5 Ke5 Rd6 e7+ Kg8 Rc5 Bg4 Rc1 Bh5 e8Q+ Bf8 Qee6 Bg7 Qed7 Kf8 Qc5 Kg8 Ba2 Rdd2 Bd5 Bh8 Kd6 Bg7 Ke7 Bh8 Qfe6 Bc3 Qhf6 Kh7 Kf8 Nd1 Qf2 Ne3 Qd4 N1g2 Qeh3 Kg6 Kg8 Ne1 Rg1 Nd3 Rgd1 Ne1 Q3h2 Rdc2 Rd3 Rd2 Qde5 Bg4 Qee7 Qg2 Q1g1 Qf3 Qhd6+ Kh5 Qf8 Raa2 Qf6 Ra3 Qfg2 Kh4 Q8h6+ Bh5 Q1f1 Qa6 Qgg1 Qb5 Qh1+ Kg3 Qdd6+ Kg4 Qf2 Rab3 Qc7 Ra3 Qd7+
1k3bB1/1r1P4/b2PpB2/NBnN1Pp1/b2bQRB1/rq5b/1B6/1Q2n2K b - - 0 1 legal: proof: b4 b5 a4 d5 axb5 g5 g4 c5 bxc5 f6 h4 Ba6 e4 Bb7 exd5 Bc8 Ra3 Qd6 Rg3 gxh4 g5 Qd7 g6 Qd8 Rg5 fxg5 c4 Kd7 d4 Kc7 f4 a5 Kf2 h5 Kg2 a4 g7 a3 c6 a2 b6+ Kd6 c7 a1B b7 Ra2+ Nd2 Nh6 g8B Ra3 Nh3 Nf5 Nb3 Na6 b8B Rh7 Na5 Ne3+ Kg1 Kd7 c5 Ng2 c6+ Kd6 Qc2 Ne1 Qb1 Nc5 Bb5 Ba6 Rh2 Qd7 Rf2 Qe6 Rf1 Bc3 Bb2 Qe3+ Nf2 Qd3 Ng4 h3 Nf6 h2+ Kh1 h4 Rf3 Qc4 Rf2 Qb3 Ba7 Ncd3 c8B Kc7 Bg4 e6 f5 Re7 Bc5 Kb8 Rf4 Rb7 Be7 Nc5 d6 Rc7 d5 Rb7 d7 Bd4 d6 Nf3 Kg2 h1B+ Kf1 Ne1 Bd8 Be4 Be7 Qd1 Bd8 h3 Be7 h2 Bd8 Nf3+ Kg2 Bc2 Be7 Ne1+ Kh1 Ba4 Qe4 Ncd3 Nd5 Qb3 Bf6 Nc2 Kg2 h1B+ Kh2 Nce1 c7+ Ka7 c8Q Bg2 Qc5+ Kb8 Qc1 Nc5 Qcb1 Bh3 Kh1
2QK1brr/B4Prr/1RB3n1/3P2kn/2p1p3/qQQN4/b1QP4/2QNb3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 b4 g5 g4 h6 f4 gxf4 g5 h5 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 Kf2 Kf7 h4 c5 g6+ Kf6 h5 e5 g7 a5 b6 g3+ Kf3 g2 Ke4 f3 b7 a4 b5 f2 b6 a3 h6 a2 h7 a1B Bb5 f1R Nf3 g1R Ba3 c4 Nc3 Rg5 Bc6 Rgg1 Rh6+ Rg6 Qc2 Bb2 Ne1 Qc7 Nd1 Rh1 Bc5 Bd7 Nd3 Ne7 g8Q Kg5 f6 Rg7 f7 Qd6 Bf2 Bd4 Re6 Na6 b8Q Qa3 b7 Nc7 Qc8 Ne8 b8Q Ng6 Qbb3 Rh2 Bg1 Bf2 Rd6 Be1 Ba7 Nc7 Qc1 Ne6 Qbc2 Nef4 Qb8 Qc5 Qbb3 Qa3 Rf6 Nh5 Rd6 Be7 Qc8 Bf8 Rf6 Rhg8 h8Q Be8 Bd7 Rh3 Rb6 Rb8 Bc6 Rh1 Ke3 e4 Kd4 Rh2 Bb7 Ba4 Bc6 Nhf4 Qhh3 Nh5 Qbc3 Bb3 Qf3 Ne7 Ke5 Ng6+ Ke6 Ba2 Kd7 Bd6 Nf4 Rh8 Q3b3 Ng3 Qfc3 R2h7 Qf8 Nh5 Nd3 Rc8 Qe8 Ra8 Qe6 Rag8 Qh3 Bf8 Kd8 Bh4 Qe6 Be1 Qc8
4B3/3N1p1R/k1QR2n1/r4rB1/b1pqB3/BPbbQP2/1r1bP1B1/2n4K b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 d4 e5 dxe5 Ke7 Nd2 Ke8 Ne4 b4 Ng3 b3 h4 gxh4 axb3 hxg3 b4 Nh6 b5 Ng8 d6 Kd7 g5 h5 g6 c5 b3 a5 g7 h4 b6 Kc6 e6 Kb7 d7 c4 e7 g2 e8B a4 Bd2 h3 Bh6 h2 Qc1 a3 Nf3 g1R Qe3 a2 Bg5 Na6 Ne5 Nb4 Rd1 a1B Rd6 Ne7 g8B Bh6 Bh7 Na2 Be4+ Ka6 b7+ Qb6 b8Q Nc1 d8B Ng6 Bge7 Bd7 Qc7 Ba4 Qc6 Bf4 Bg5 Rh5 Nd7 Bh8 Bge7 Rf5 Bf8 Rgg5 Bfg2 Bc3+ Kf1 Ra5 Bde7 Rgf5 Bg5 Rd8 Qd3 Bfd2 Qe3 Ka7 Bfe7 Qd4 Nb6 Ka6 Re6 Rb8 Ba3 Ra8 Rd6 Ra7 Bh3 Rd7 Kg2 Rd8 Rg1 Rd7 Kh1 Rd8 Rg4 Ra8 Rh4 Rd8 Kg2 h1B+ Kg1 Bf3 Bg2 Ra8 Kh1 Rd8 Bd5 Be4 f3 Bd3 Be4 Qf6 Qf2 Be3 Kh2 Bc2 Rd1 Rd2 Kh1 Bb1 Rh3 Rb2 Rd6 Bd3 Rh7 Bed2 Qe3 Qd4 Nd7+
1QnB4/P1BB1Pr1/2rBpbPb/1pb5/5b1Q/n1q2n2/K2k2RR/B6N b - - 0 1 legal: proof: e4 b5 g4 d5 exd5 f5 gxf5 a6 b4 Nf6 c4 bxc4 b5 Ng8 b6 g5 h3 g4 Nc3 g3 Bg2 Be6 Bf1 Bf7 Nb5 axb5 Qa4 Bh5 Qd1 Bg4 hxg4 Ra5 Rh2 Ra4 Rh1 Ra8 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb2 c5 a4 e6 f4 g2 g5 h4 b7 c3+ Ka2 c4 f6 h3 g6 c2 f7 h2 f5 c3 a5 Na6 b8B+ Qc7 f6 Be7 f8B Rh7 f7 Rg7 Bb2 c1B Qh5 c2 Qh7 Bf4 Nh3 c1B Qh4 g1B Bg2 Bcd2 Nf2 Nb4+ Kb3 Ra6 Ra2 Bde3 Ba1 Rc6 a6 Nc2 a7 Na3 Re2 Bh6 Ka2 Bef4 Rd2 Nf6 Rb2 Ne4 Bf3 Ng5 Be4 Kd7 d6 Nf3 d5 Bf6 Rc2 Qa5 Bc7 Qc3 Re2 Kc8 d7+ Kb7 d8Q Ka6 Nh3 Bb6 d6 Ka5 Nf2 Kb4 d7+ Bc5 Bfd6 Kc4 Rg1 h1N Qb8 Ng3 d8B Nf5 Rg2 Ne7 Rb2 Nc8 Rc2 Rb6 Bc6 Kb4 Bd7 Rc6 Rc1 Kc4 Rh1 Kd4 Rh3 Ke3 Rhh2 Kd2 Nh1+
1bN3RB/1r4N1/p1r4P/b1n1BQr1/qBp2B2/1P1B1P2/Qnr4q/1k2K3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 a4 fxe4 axb5 Nh6 Ra6 Ng8 Rg6 Bg4 f4 Bf3 gxf3 h5 Rg4 hxg4 d4 Kf7 h4 Kf6 b6 g5 b7 c5 d6 e5 h5 e3 b3 e4 f5 c4 d5 Ke5 h6 a6 f6 e2 f7 g3 d7 g4 d6 g2 Qc2 Kd4 Nc3 g3 Qb1 Nc6 b8Q Nf6 Qc2 Qa5 d8B Ra7 d7 Ne5 Bf4 Nd3+ Kd2 e1B+ Ke2 e3 Rh4 Qa4 Bdc7 Rb7 d8B Nb2 Rg4 Bd6 f8B Ne4 Rg8 Nc5 Nd5 Ba5 Nh3 g1Q Ne7 g2 Qf5 Kc3 Ke1 e2 Ng5 Qh2 Ne6 g1R Nc8 Rg5 Ng7 Rh7 Bfe7 Rb6 Bf8 Rc6 Bf6+ Be5 Ne6 Rd7 Bh8 Rd2 Ng7 Rc2 Qb7 Bd6 Bd8 Bb8 Bdc7 Nd1 Qb5 Kb2+ Qb4 Kb1 Bce5 Nb2 Qd2 Nb7 Bb4 Nc5 Qd6 Qh3 Kf2 e1R+ Be2 Reg1 Qdf8 R1g2+ Ke1 Qh2 Bf1 Rd2 Qe7 Rd7 Bd3 Rb7 Bbc3 Ne4 Qa3 Nc5 Bcd2 Qh3 Bb4 Qh2 Qa2+
2n5/Rqq1n2q/1PrPP2p/b1N2q2/N2N2kB/p2q4/1r1RNNKQ/1Q6 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f4 exf4 g3 g4 Bg2 Qg5 Be4 Qd8 Bf3 gxf3 g4 Qd7 h3 Qe7 g5 Bg4 hxg4 Qd8 Kf1 Kd7 e4 f5 b4 a5 d4 c5 g6 h6 g7 f2 d6 Ke6 d7 a4 g5 c4 e5 c3 g6 c2 b6 Qc8 b7 Ra7 b5 Bb4 b6 Nc6 b8N Nce7 Nc3 Ba5 Kg2 Qb7+ Nc6 Nc8 Rh2 Nge7 g8N Rh7 Bd2 c1Q g7 Qc2 Nf6 f1Q+ Kh1 f3 g8Q+ Rf7 Qg2 f2 Ng4 f4 d8N+ Kf5 d5 f3 d6 Qfd3 e6 f1Q Bg5 f2 Qb1 Qfc1 Bh4 f1Q Nd4+ Kf4 Nf2 a3 Na4 Qcc7 Ra2 Q1c3 Rd2 Qh7 Rh3 Ra8 Rg3 Qcd3 Rg7 Rf5 Kh2 Rb5 Qh1 Rb2 Nge2+ Ke3 Rf7 Qh3+ Kg1 Qh3f5 Qh2 Rb8 Nb3 Kf3 Nbc5 Ra8 Nc6 Rb8 Nfe4 Kg4 Ncd4 Na7 Kg2 Rc8 Nec3 Qcb8 Nce2 Rc6 Rf8 Q8c7 Ra8 Nac8 Ra6 Qa8 Ra7 Qab7 Nf2+
bR3r2/2NK3B/NkN2P1p/2bQ1P2/1N1P4/b1B2r1r/1n1p2N1/1bqQ1q2 b - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 f5 b4 axb4 g4 e5 gxf5 e4 a4 g5 h3 Nc6 Ra3 Ne5 Rd3 exd3 h4 g4 Bh6 Nf7 Bc1 Ng5 hxg5 Qe7 Qd2 Qd6 Qd1 Qd8 Kd2 Kd7 Ke3 b5 Kf4 c5 Ke5 Kc7 e4 h6 f4 c4 f6 g3 g6 d2 d6+ Kb7 a5 b3 g7 c3 a6+ Ka7 d7 b2 Ke6 g2 e5 b4 Bd3 b3 Ne2 g1Q Bh7 c2 f5 Kb6 a7 Bb7 Nf4 Qf1 Na3 b1R Ng2 Qc8 Bb2 c1B Bc3 b2 Nc2 Ne7 g8Q Ng6 Nb4 Bc5 Rh3 Qc7 d8N Be4 Qf7 Rf8 Ndc6 Ra1 Qd7 b1B Qd5 Ra3 Rd3 Rb3 Re3 Ba3 Rd3 Qb8 Kd7 Nf4 e6 Qe5 Rf3 Nd3 e7 Nb2 e8N Qh2 Re3 Qhg1 Nc7 Rae8 Re2 Bf3 Nca6 Re3 Re1 Bfe4 Re2 Rh3 Re3 Bf3 Re8 Bfe4 Qf3 Qc1 Qd1 Qf1 a8N+ Kb7 N8c7 Kb6 Nd8 Rf3 Qf7 Ba8 Ndc6 Rh3 Qd5 Nd3 Ba1 Nb2 Rc8 Rbf3 Rd8 Na4 Bc3 Nb2 Rb8+
N7/N1P1Q2B/Q4npp/K1PbR3/P2k2rq/2n1nr2/5N2/N1BnNrq1 b - - 0 1 legal: proof: b4 a5 g4 axb4 h4 f5 gxf5 e5 a4 c5 d4 g6 dxc5 Qb6 h5 Bg7 h6 Ra6 hxg7 Qd8 Ra3 Ra7 Rd3 Ra8 Rd4 exd4 Kd2 Ke7 f4 Kf6 c4 d5 e4 b5 e5+ Ke7 e6 Kf6 e7 b3 e8N+ Kf7 c6 b4 c5 b2 f6 Ke6 c7 h6 f5+ Ke5 f7 d3 f8Q b3 Kc3 d2 Kb4 d4 f6 d3 f7 Ra6 Nf3+ Ke4 Ne1 Rf6 Nd6+ Kd4 Qe7 Be6 f8N Rf4 Ne4 Nf6 g8N Rg4 Nd7 Na6+ Ka5 Bd5 Na3 b1R Rh5 b2 Re5 Nb4 Nb6 Nc2 Qe2 d1Q Nf2 d2 Na8 Ne3 Qa6 Rh7 Be2 Rf7 Bc4 Ra1 Bb3 b1N Bc4 Qe2 Bb3 d1N Bc4 Qf1 Nac2+ Kc3 Ba2 Qg1 Bb3 Ra3 Na1 Rf8 Qe8 Rf7 Ne7 Kd4 Nc8 Nbc3 Na7 Qe7 Rg5 Qe4 Qe7 Qeh1 Re5 Qh4 Bc4 Nf1 Nb6 Bf3 Bb2 Ne4 Nfd3 Ra2 Qe6 Nfe3 Bc1 Rf2 Qe7 Rf1 Na8 Rf5 Nf2 Nf6 Bg8 Bd5 Bh7 Rff4 Qd7 Rf3 Qe7
1Nb3N1/KP3n2/4r1QN/R2p1rq1/2R3Q1/qpn2PNk/N1qBq2P/4r3 b - - 0 1 legal: proof: e4 b5 b4 h5 a4 bxa4 g4 f5 exf5 c6 gxh5 Bb7 Ba3 Ba6 Bc1 Bc8 c4 e6 d4 Qg5 c5 Qh4 b5 Kd8 b6 Bd6 Bb5 cxb5 c6 Bc5 dxc5 Ke8 Na3 Qe7 Nb1 Qd8 Kd2 Kf7 Kc3 Kf6 Kd4 g5 f3 a5 c7 d5 c6 b4 Kc5 e5 h6 b3 b7 e4 Kb6 e3 h7 g4 Qd3 Kg5 f6 Kh4 f7 e2 f8N e1Q Qb5 g3 Ne6 g2 Nd4 a3 Qd3 a2 Qe3 a4 Nc3 a3 Qe6 Na6 Qg6 Qe2 Bd2 Nh6 Rc1 a1R Na2 Rf8 h8N Qg5 Nf7 Nc5 Rc4 Rb8 Ka7 Ne4 Nc3 Re1 Na2 Bg4 c8N Nc3 Ne7 Rbe8 c7 Bc8 Ng8 Re6 Nh3 g1Q Nf4 Qgf1 Nc6 Qfg2 Nh5+ Kh3 Ng3 Qgf2+ Be3 Qc2 Nb8 Qg2 Bd2 Qe2 Ne5 Rff6 Ng4 Nf7 N4h6 Rf5 Nb4 Bd7 c8Q a2 Rf1 a1Q+ Na2 Rb1 Rc1 Qab2 Ra4 Qa3 Qc4 Bc8 Ra5 Qcd3 Rc2 Re1 Qd4 Na4 Rc6 Qc2 Rc4 Nc3 Qg4+
r1bQq2R/1P5p/1rk1Q3/2nq2P1/1PNrQ2K/8/2pqr3/n1BQRN1Q b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Bb4 g6 Ke8 Bg2 Be7 Bf3 Bg5 hxg5 exf3 Kf2 Kd7 d4 a5 b4 f5 e4 c5 d6 c4 g7 a4 e5 c3 b6 c2 e6+ Kc6 d7 a3 b7 a2 e7 Nh6 e8Q Na6 g8Q Nc5 Qe3 Qe8 Ke1 f2+ Ke2 f1R d8Q f3+ Kd2 f2 Ke2 f4 Kf3 Re1 Qee7 Nf5 Kg4 f1Q Ne2 f3 Na3 f2 Nc4 Qg2+ Ng3 Re2 Re1 Qd5 Qe4 f1Q Qa5 Qh1 Nf1 Qh2 Qge6+ Qd6 Kh3 Rg8 Qa3 Rg6 Qaf3 Rf6 Qh1 Rg6 Rb1 a1R Kg4 R1a6 Ra1 Rb6 Ra4 Rg7 Ra5 Rd7 Ra2 Ng7 Kh4 Nb3 Ra3 Na1 Rf3 Nh5 Rf8 Nf4 Rg8 Nd3 Rh8 Kc7 Rf8 Nc5 Rh8 Q5e5 d5 Qd4 Qf5 Qd2 Qfh3 Qc6 Qb3 Rd8 d6+ Kd7 Qbe3 Qcd5 Qb3 Kc6 Qa2 Rd7 Qa6 Rf7 d7 Rf3 d8Q Rd3 Qa2 Rd4 Qb3 Qd7 Qbh3 Qe8 Qe6+
1KQR3B/Q2Pb3/p1q1n1p1/2R5/bP1P2Q1/bk2Nrn1/1rQ4p/1b1NQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Nf6 g6 Ke7 g7 Qd6 g8Q Qb4 g5 Qd6 g6 Be6 g7 Qd8 Bg2 Ke8 Be4 Bc8 Bg6 fxg6 Kf2 Kd7 Kf3 Kd6 e4 Kc5 b4+ Kc4 b6 h5 e5 c5 d6+ Nd5 Ke4 a6 b7 h4 d7 f3 e6 f2 Ke5 f1B Nh3 Be7 Nf4 h3 Qc2+ Nc3 Ng2 Bd3 Bb2 Qb6 Ra5 Qc6 Rd1 h2 Qd8 Rf8 g8Q Rf2 Qgf8 Be4 Qf5 Re2 Qg4 Rf2 Qa4 Ne2 Nc3 Ng3 Qc2 Rf3 Qb6 Rf2 Qa7 Re2 Qb1 Kb3 Ne3 c4 Rc5 Bf5 Qc1 Bb1 d3 Rg2 Rd2 Re2 Nd1 c3 Ba1 c2 Bb2 Qa4 Kd5 Rf2 Bh8 Nc6 b8Q Nd8 Ke5 Bb7 Qc8 Qc6 Qb2+ Ka4 Qc3 c1B Qc2+ Ka3 d4 Rg2 Rf2 Bb2 Rf8 Re2 Qce4 Kb3 Qef5 Ba3 Rg8 Bf8 e7 Rb2 e8Q Ne6 Qe7 Rb8 Qeh4 Be7 Rd8 Qf3 Qfe4 Bc6 Qef5 Ba4 Qfe4 Nh1 Qe1 Ng3 Kd5 Rb5 Kc6 Ra5+ Kb7 Qf6 Rc7 Rf5 Rc5 Rf3 Ka8 Ng5 Qef5 Qc6+ Kb8 Ne6 Qc2+
1rB1b3/1P2b1N1/pPNPp3/r2k2N1/b3pK2/r1q2Q2/1B2Q2n/1N2N1Rr b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 b4 Nh6 g4 Na6 h4 Ng8 h5 Nc5 Ra3 Ne6 Rf3 Nf4 Rf2 Ng6 hxg6 Rb8 Rf4 gxf4 g5 Ra8 Ke2 Kd7 d4 Kd6 g7 c5 f6 h5 b6 e6 g6 f3+ Ke3 c4 b5 f2 b7 h4 f7 c3 Nf3 h3 Kf4 c2 Bb2 c1R Rg1 h2 Ne1 h1B Qf3 Be7 f8N Qa5 Nh7 Nh6 g8Q Bd7 g7 Rc3 Ng5 Bc6 b6 a6 Bb5 Be8 Bd7 f1R Bc8 Rb8 Qf8 Qa1 g8N Ra3 Nf6 Ng4 Nh5 Nh2 Ng7 Rh5 Qf5 Bg2 Qg4 Bh3 Qg2 Bf5 Qe2 Bfg6 Bc1 Qc3 Bb2 Bf8 Rg3 Ba4 Rg1 Ke7 d6+ Kf6 d7 Be7 d8N Bge8 Ngf7 Re5 Ng5 Ra5 Nd3 Re1 d5 Rd1 Ne1 Rc1 Kg3+ Ke5 d6 Kd5 Kf4 Rd1 Nc6 Rc1 Rg4 Rd1 Nd3 Rg1 Ne1 Rh1 Rg1
Q2Q4/k1p1n1br/3nqqr1/KQ1N2r1/Q1B1N3/p1P1P1R1/3r1p1P/1B2Q3 b - - 0 1 legal: proof: b4 e5 a4 b5 axb5 g5 g4 h6 f4 Ke7 fxe5 Bb7 d3 Ke8 Bf4 Be4 dxe4 Qf6 Ra3 Qe7 Rg3 gxf4 g5 Qf6 g6 Qd8 Rg5 hxg5 Kd2 a5 Kc3 d5 e6 f5 e3 f3 b6 f2 e7 Kd7 e8Q+ Kc8 b5 Kb7 g7 a4 e5 d4+ Kc4 f4 c3 a3 e6 g4 e7 d3 Kb4 f3 Ne2 g3 Nd2 g2 Ne4 g1R Nf4 d2 Bd3 f1Q Nd5 f2 Qe1 d1R Bb1 Nf6 g8B Rg5 Rg1 Bg7 Rg3 Rh7 Qh5 Qd3 e8Q Rd2 Qhd1 Ra5 Qa4 Ra6 Qe5 Ka8 b7+ Ka7 Qd6 Qc8 Qd8 Ne8 Bf7 Nd6 Bg8 Ra5 Be6 Rg6 b6+ Ka6 Bg8 Qe6 Bf7 Qe2 Bg8 Qf3 Bf7 Nd7 b8Q Qff6 b7 Nb6 Qbc8 Ka7 Qcd7 Ka6 b8Q Nbc8 Qbb5+ Ka7 Q7e8 Qef5 Ne7 Qd7 Bc4 Qde6 Nd5 Ne7 Qh8 Ra6 Qb3 Rb6 Ka5 Rc6 Q3a4 Rc5 Nb6 Rch5 Nd5 Rhg5 Qhe8 Nec8 Qec6 Ne7 Qca8#
RNR1q1RR/2Q4K/np6/Pn1qn3/p3B3/1q4p1/1Pq1r1P1/kN1Q2Rn b - - 0 1 illegal: No proof kernel
Q2N4/k6Q/p2n1p1Q/2b1b1nQ/1Np1Pp2/2q1r1RR/2P2PB1/1r1r1Q1K b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 d5 c5 Be3 Bb7 Bf4 Bc6 dxc6 exf4 e4 d5 b4 g5 h4 g3 b6 a6 h5 c4 h6 g2 b7 d4 c7 Kd7 h7 Kc6 c8Q+ Kb6 b5 d3 Rh4 d2+ Ke2 Nf6 Kf3 Bc5 Qg4 Nc6 Ra3 Ka7 Nh3 g1Q Nc3 Rb8 Na2 Na5 Bg2 Qe1 Qh5 Qe8 Qb1 d1R Nb4 Qf8 Rd3 Qc3 Rg4 Rg8 h8Q Nh7 Rg3 Rg6 Re3 Rgd6 Qg7 R6d3 Qgh6 Qg8 Bf1 Qd8 Kg2 Qe8 Ref3 Re3 Qc1 Nc6 Kg1 Nd4 Kh1 Nf5 Qb1 Nd6 Qc1 Rd5 Bg2 Rd4 Qf1 Rd1 Kg1 Rb1 Kh1 Rd8 Ng1 Rd7 Ne2 Qa8 Rh3 Ne8 Rfg3 Rdd1 Nd4 Nd6 Ne6 g4 Q6g6 Qb2 Bf3 Qb3 Qgh6 Qc3 Rg1 g3 Nd8 g2+ Kh2 Kb6 b8Q+ Qb7 Rh1 g1B+ Kg2 Bh2 Rg1 Bg3 Kh1 Bh4 Rgg3 Bf6 Qc7+ Ka7 Bg2 Ng5 Qe7 Be5 b6+ Kb8 Qd7 f6 Qdh7 Qa8 b7 Ka7 bxa8Q+
qBQRK1QN/Rnr1Q3/2Pq1b1Q/6p1/1pp4P/N2n2p1/rQ1k3P/2b5 b - - 0 1 illegal: No proof kernel
NN2N2K/QB4p1/p1p3Pb/1nq3N1/2R4Q/2nPk1qp/r2P3N/b2r3B b - - 0 1 illegal: Other
r1b1B3/N2pBp1n/P1pP1Q2/P2NK3/2b1N2N/1prk2RN/8/1rq1Q1b1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 g5 c4 e5 a4 b5 f4 b4 Ra3 Nc6 Rf3 Na7 Bg2 Nb5 cxb5 Bd6 Bh3 Bc5 fxe5 Bf8 Rf4 gxf4 g5 Rh6 Bf5 Rh8 Bg4 hxg4 Kf2 Ke7 d4 Ke6 e4 f3 Ke3 g3 Kf4 b3 h4 f2 g6 f1B g7 g2 h5 Rh6 b6 Bb7 d5+ Ke7 e6 Kf6 e5+ Ke7 d6+ Ke8 a6 Qc8 a5 Ra7 Rh3 Bc6 b7 Be4 b8N Rg6 h6 Rb7 h7 Nf6 g8Q Bc6 h8N Ra7 Rg3 Nh7 Nd2 Bc4 Ne4 Bb7 Qe1 Ra8 Nh3 g1R Qg7 Rh1 Qf6 Bh6+ Kf5 Kf8 Nc6 Be3 Na7 Bg1 e7+ Kg8 e8N Rg4 Rf3 Rg3 e6 Kf8 Bg5 Kg8 Rf4 Rc3 Rg4 Kf8 Ke5 Kg8 Qf3 Kf8 N8f6 Kg7 Bh4+ Kh6 Nd5 Kh5 Rg2+ Kh6 Qf6+ Kh5 Bg3 Kg4 Bf4+ Kf3 e7 c6 e8B Qd8 Qg6 Bc8 Qf6 Qb6 Ng6 Qe3 Qd8 Qc1 Bg5 Rh2 Rg4 Rb2 Be7 Rb1 Qg3+ Ke2 Nh4 Bb6 Qe1+ Kd3 Rg3+ Be3 Bf8 Qd1 Qf6 Qc1 Rg7 Bc5 Be7 Bg1 Rg3+
1r1brqk1/2p4q/3NRB1p/p1R5/pbPP2Kn/P6Q/QQ1BQ3/4bQ2 b - - 0 1 legal: proof: g4 f5 e4 d5 Ba6 bxa6 exd5 a5 Nc3 a4 Ne4 fxe4 f4 g5 h4 Na6 f5 Nc5 f6 Bf5 gxf5 g4 Qe2 Ne6 Qd1 Ng5 hxg5 Rb8 Rh2 Rc8 Rh1 Ra8 Ke2 Kf7 d4 a5 b4 e5 g6+ Ke8 g7 Kf7 a3 e3 b5 g3 Kf3 g2 d6 e4+ Kg4 e2 d7 e1B b6 h6 b7 e3 b8Q e2 Rh5 Bc3 Nh3 e1B Bd2 Qe8 d8B Bh4 Qb2 Bd6 Qe2 Bc5 Re1 Qd7 Nf2 Bd6 Ne4 Ne7 Rg5 Kg8 f7+ Kh7 f8Q Ng6 Bf6 Qe7 Qc8 Bdb4 Nd6 Re8 Qce6 Qd7 Q6e3 Qf7 Qh3 g1Q+ Qeg2 Rab8 Bf4 Re5 Be7 Rg8 f6 Rf8 Qc1 Rb5 Kf3 Bd2 Re6 Qg8 f7 Nh8 Rc5 Re8 f8Q Rbb8 c4 Bdc3 Qa2 Bce1 Qcb2 Qg6 Bd2 Qb1 Qf4 Ng6 Qe3 Bf6 Qe2 Nh4+ Kf4 Qg6 Qef1 Qf8 Qe2 Qgf7 Qhf1 Kg6 g8Q+ Q7g7 Qf7+ Kh7 Qh3 Kh8 Bd8 Qh7 Kg4 Be7 Qff1 Bg5 Bf6+ Kg8 Bh8 Bd8 Bf6
4Q3/P3p3/Kp1n2NN/1p3Qb1/1B5P/2QR1P1Q/npqb1qbk/1R2Q1r1 b - - 0 1 legal: proof: c4 c5 b4 cxb4 d4 h5 g4 f5 gxh5 b3 e4 a6 exf5 Nc6 c5 Nb8 Bb5 axb5 d5 Ra5 Qe2 Ra6 Qd1 Rc6 dxc6 Qc7 Qg4 Qb6 Qd1 Qd8 Ke2 Kf7 Kd3 Kf6 h4 Ke5 a4 g5 f6 b2 f7 g4 c7 g3 c6 g2 f3 Nf6 a5 Ne4 a6 Qe8 a7 Ng3 h6 Rh7 Na3 Na6 Rb1 Qd8 Qe1+ Ne4 Nh3 g1B Nf2 Rg7 h7 d5 h8Q d4 Ng4+ Kf5 Nc4 Nd6 Bd2 Be3 Nce5 Kf4 Nh6 Rg1 Bb4 Bh3 c8Q Qb6 c7 Bd2 Qe8 Bg2 c8Q Bg7 f8Q+ Bf6 Kc2 d3+ Kb3 Qf2 Ng6+ Kg3 Qce6 Bfg5 Qc3 Bde3 Qfg7 d2 Qf5 d1Q+ Ka3 Qe2 Rd1 Qc2 Rd3 Rf1 Rg1 Kh2 Qgd4 Bc1 Qdg4 Bcd2 Bc5 Nc7 Kb4 Na6+ Ka5 Nb4 Kb6 Na2 Ka5 b6+ Ka6 Qe3 Bb4 Qf2 Qee6 Re1 Qe3 Re2 Rb1 Re1 Qee6 Rh1 Qe1 Rg1 Qh3+
5K2/pkpbRPpN/3B2q1/pQ4rR/2r1q1P1/6bN/1Q1P2R1/R1n3Rb b - - 0 1 illegal: No possible last move, all moves rejected
2B5/1R1r2p1/1n1k1bn1/1P2pnP1/5n2/pNBQB1p1/Q1qPB3/KBR3r1 b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 h5 axb5 Nf6 g4 Ng8 g5 Nc6 Qf3 Nb8 Qg4 hxg4 b4 e5 f4 c6 f5 Kd7 b6 Ke8 Na3 Bd7 Nb5 Be6 fxe6 Qc7 Nd4 Qd8 b5 c5 Nc6 Nd7 Nb4 cxb4 Bd3 Nb8 Be2 Qd7 Bf1 Qd8 Kd1 Ke7 c4 a5 Kc2 f5 Kb1 f4 h4 a4 h5 b3 d6+ Ke8 h6 g3 c5 b2 c6 f3 b7 f2 e7 Nf6 h7 Nbd7 b8B Ra7 c7 Kf7 c8B Ke6 e8B Nh5 Bg6 Be7 Be2 f1N Nf3 Ne3 Nd4+ Kd5 Bc7 Nf8 d7 Nf5 Nb3 Nf4 Bb6 Kd6 Be3 Bf6 Rh6 Qe8 d8Q+ Rd7 Ka2 b1N Bb2 Qe6 Bc3 Na3 Rc1 Qc4 Ka1 Qc6 Qa5 Nc4 Qa8 Qc7 Qe4 a3 Qd3+ Nd4 Bf5 N8g6 Be4 Rf8 h8Q Nb6 Qg8 Rff7 Na5 Rf8 Qa2 Rh8 Nb3 Rh7 Qc4 Nf5 Bb1 Rh8 Qe4 Qc4 Qf3 Qd3 Qe4 Qc2 Qc4 Rf8 Rh8 Rff7 Re8 Rf8 Re7 Rh8 Rf7 Rh1 Re7 Rg1 Qe4 Rd8 Rb7 Rd7 Qd3+
nr1Q1B2/QP4KP/3b2bR/1rr1p2B/3NP3/3rppQk/RQpq4/3Q4 b - - 0 1 legal: proof: b4 h5 f4 g5 a4 gxf4 g4 b5 axb5 Nc6 gxh5 Nf6 c4 Ng8 b6 Nb8 b7 Bg7 Bb2 Bh6 Bc1 Bf8 b5 d5 c5 Nd7 Nc3 Nb6 cxb6 d4 e4 Bf5 Nd5 Bc8 Ne3 dxe3 Ke2 f5 Kf3 Kf7 b8Q Kf6 h4 e5 d4 c5 h6 a5 h7 a4 h5 Kg5 h6 a3 d5 c4 b7 a2 d6 c3 b6 c2 d7 Ra5 Qe2 Rb5 Qa7 Ne7 b8Q Nd5 Qd1 Bd6 Ne2 Nc7 Nd4 Na8 Ba3 Rf8 Bh3 Kh4 h8Q Re8 h7 Rg8 Rc1 a1R Qg7 Rab1 Qbb7 Rc5 Qg6 Rbb5 Ra1 Re8 Ra2 Rh8 Qd5 Rg8 b7 Qa5 Qb3 Qd2 Qb2 Rd8 Rg1 Re8 Bg4 Rh8 Bh5 Kh3 d8Q Bd7 Qf8 Be8 Qgg7 Bg6 Qfe7 Rb8 Qd8 Be8 Rg6 Bf7 Rh6 Bg6 Qdd7 Qc1 Ke2 f3+ Kd3 f2 Qd8 f1R Qgg8 Rd5 Kc4 f4 Bc5 f3 Bb4 Bc7 Bf8 Bd6 Qg7 Qd2 Qg8 Ra5 Qg7 Rdb5 Qg8 Bc5 Kd5 Bd6+ Ke6 Rc5 Kf6 Rab5 Kg7 Rg1 Qe2 Rd1 Qd3 Qa5 Qe2 Rd3 Qd1 Qd2 Qf7 Rb6 Qf4 Rbb5 Qg3+
4q1n1/R1K1p1B1/1P5Q/QQ2pR1n/pPQ2p2/r1NpP1k1/8/N2qn1Qb b - - 0 1 illegal: No proof kernel
2r1N1Q1/r1p1qP1K/1nP1bBnR/3Nb1kP/5b2/2Nq1R1Q/3q4/N3N1nr b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 hxg4 Na3 f4 Nb1 f3 Bg2 fxg2 Kd2 Kf7 Ke3 Kg6 Kf4 a5 e4 d5 c4 a4 b4 a3 h4 g3 c5 a2 c6 d4 e6 d3 b6 d2 b5 Bb4 e7 Bg4 e8N Qd6+ e5 Qf8+ Nf6 Ra5 b7 Bh3 e6 Qe8 b6 Ba3 e7 Rh6 Nd5 Nd7 b8N Rh8 b7 Be6 Qb3 d1Q Nbc3 Qd3 Nf3 g1Q Ne1 g2 Bb2 Ra7 Na6 Nb6 b8Q Qd2+ Ke5 Qf1 f4 g1N Nab4 Qfd3 f5+ Kh6 f6 g5 f7 g4 Rd1 a1B Nbc2 g3 h5 g2 Rh3 Kg5 Rf3 Qd7 e8N Ne7 Qc8 Bc5 Qd8 Be3 Qa3 Kh4 Kf6 Ng6 Kg7+ Qe7 Qb3 Rg8+ Kh7 Kg5 Qa3 Bf4 Qc8 Qf6 Qf8 Qe7 Qg7 Rf8 Qg8 Nh3 Qd7 g1R Qc8 Rh1 Qd7 Qh2 Rd2 Ng1 Re2 Bf5 Re6 Qhd2 Rf6 Be4 Qh3 Bf5 Ba3 Bb2 Na1 Be6 Bd6 Ba3 Be5 Bd6 Ng7 Rd8 Ne8 Rc8 Kg7 Nh4 Rh6 Ng6 Bd4 Bfe5+ Kh7 Bf4 Bg7 Bde5 Bf6+
b1Q4Q/N7/2p3RK/1b1r3N/1Q1nq3/B1bk1P1Q/r1PPn1Br/1bn1Q2b b - - 0 1 illegal: Other
1bQ2B2/QB1r2r1/pK2Pk1b/2Pq4/P2n1R2/bb1b4/1n2B1Rr/2q1BBN1 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 hxg4 Nd2 f4 Ne4 Rh6 Ng3 fxg3 Bd2 Rh5 Bc1 Rh8 Kd2 Kf7 Kd3 d5 Kd4 g5 h4 b5 f4 g2 c4 g3 e4 g4 a4 b4 c6 b3 e6+ Kf6 e7 a6 Kc5 d4 f5 d3 h5 b2 c7 b1B h6 d2 h7 Bd3 Nh3 g1Q+ Nf2 g2 Ra3 g3 Rh5 Qd5+ Kb6 Ra7 e8B Bh6 Bb5 Ne7 Ra2 Nbc6 Rh4 Ng6 Rf4 Nd4 Nh3 Be6 c8B Rg7 Bb7 Ne5 Qe1 d1R Bd2 Qe3 Qf2 g1B Be1 Bh2 Ng1 Qc1 Qe3 Bf7 Rg2 Rd2 Qf2 Rd8 h8Q Rd7 Qe3 Re2 Qc8 Ra2 Rgf2 g2 Rb2 Bb1 Rd2 Nd3 c5 Nb2 Bbe2 Bg3 Qb3 Bd3 Qb5 Bg8 Qbc6+ Be6 Q6c7 Bg8 Q7b8 Bf7 Qa7 Bh2 Nf3 g1B Rc2 Be3 Ng1 Qe5 Rd2 Bb3 Rc2 Qd5 e5+ Kf7 e6+ Kf6 Bh3 Bd2 Bhf1 Bb4 Rd2 Ba3 Rc2 Ke5 f6 Bg3 f7 Bh2 Rg4 Kf6 f8B Bb8 Rc4 Nd1 Rg2 Rc2 Bf3 Rf2 B3e2 Nb2 Rg4 Rh2 Rg2 Nb5 Re4 Nd4 Rf4+
2R2K2/2r3pQ/n1BR2P1/b1rPQ1q1/b3r1n1/N1n2n2/P1n1Nk2/N1N2Nr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h6 cxd5 Ra4 g5 Nd7 g6 Ra8 Bb2 Nb8 Bf6 Ra5 Bh4 Ra8 Bg5 hxg5 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 f4 Ke3 h4 e5 h5 c5 d6 b5 d7 c4 f6 c3 Kf5 c2 Ke6 c1N Kf7 b3 h6 b2 f5 g4 h7 e4 Qe1+ Ne2 Na3 b1N Bg2 b4 Nf3 b3 Nh2 Nc3 Rc1 Qa5 d8N g3 Nc6 b2 Ne5 b1N Nd3 Nd2 Rd1 Qc5 Nc1 Na6 Ke8 Nf3 f7 Be7 f8N Bd8 f6 Ra7 f7 Ba5 Nd7 Qg5 f8N Nh6 Nc5 Ng4 N5b3 Rc7 Na1 Bd7+ Kf7 Rg8 Ne6 Rgc8 h8Q Be8+ Kf8 Ba4+ Nd8 Rc5 Qh7 R8c6 Ne6 Rc7 Qd2+ Kf2 Nf4 e3 Nf1 Rc4 Rg1 R4c5 Bh1 g2 Qb2 Nd5 Qb5 Nec3 Nfe2 Ndb4 Qe8 Nc2 Qe5 Rd7 Nf4 e2 Rd3 e1R Nfe2 Ne4 Rc3 Rdc7 Rc4 Rb5 Rc6 Rc5 Rd6 Nc3 d5 Ra7 Nf4 Re4 Nh2 Nd2 Ncb3 Ncb4 Rc1 g1R Bg2 Nb5 Bf1 Rc2 Bc4 Rb7 Ne2 Nf3 Nf1 Rd7 Bd3 Rcc4 Rc3 Nc2 Nbc1 Rc6 Rc5 Nc3 Bb5 Rb7 Rc4 Rc8+ Be8 Rb5 Rc7 Rc5 Rcc6 Rb8 Rc8 Rb7 Bb5 Rbc7 Bc6
1R2QQ2/Bk5P/2rQ1bb1/Pb1p2N1/3nBb2/r1n1Q1nq/3P2N1/1b1QK1n1 b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 c5 b4 axb4 g4 h5 Ra3 c4 Rb3 cxb3 gxh5 Ra6 Na3 Ra5 Nb1 Ra8 c4 g5 f4 b5 h4 e5 c5 d5 c6 g4 c7 Kd7 h6 Kc6 f6 b2 f5 e4 h5 g3 f7 e3 f6 b3 h7 g2 h6 b4 Bc4 e2 Na3 b1B Bd3 b2 Nf3 g1N Rh3 b3 Be4 Bd6 f8Q Bd7 f7 Nf6 Kf2 e1B+ Kf1 Nh5 Nc2 Bh4 Ng5 Qc8 Ne1 Kb7 Ng2 Bf4 Qd6 Nc6 f8Q Ng3+ Ke1 Nd4 a5 Ra6 Qe8 Rc6 Qee7 Rg8 h8Q Bd3 h7 b1N Rh1 Nc3 Ba3 b2 Bc5 b1B Ba7 Bb5 Qhg7 Be8 Qgf8 Bg6 Qee8 Qh3 Qh6 Rg7 Qef8 Ka6 c8Q+ Rb7 Qce6 Rbb6 Qee8 Kb7 Ne6 Bf6 Qg5 B4e5 Qe3 Bf4 Ng5 Ba4 Qc1 Rb3 Qc2 Bb5 Qd1 Qf5 Rh3 Ra3 Rh6 Bh5 Rg6 Qh3 Rg8 Bg6 Qed8 Ndf5 Qh6 Rc4 Re8 Rc6 Qhf8 Nd4 Qd8e7+ Qd7 Qee5 Qc8 Rd8 Qf5 Qee8 Qh3 Rb8+
5bk1/Q2N2nR/1br1R1rq/Rb1r2Pn/P2N1p2/4RP2/3n1KQn/1R3B1r b - - 0 1 legal: proof: d4 a5 c4 d5 b4 axb4 h4 g5 hxg5 e5 Bb2 Ne7 cxd5 Ra7 d6 Ng8 d5 Ra8 Bd4 exd4 g4 h5 a4 c5 e4 f5 g6 b5 g7 Kf7 d7 f4 e5 c4 g5 c3 f3 c2 d6 c1B Rh2 d3 Rha2 d2+ Kf2 h4 Ke2 h3 Rc2 h2 Bg2 h1R Rc3 b3 Rc5 b4 Na3 b2 Nb1 b3 Qe1 d1R Qa5 R8h6 Qa7 Be3 Na3 b1N Ra5 b2 Nc4 Rg6 Bf1 Nf6 g8R Nd2 Nb6 b1N Rh8 Nc6 Rh7+ Kg8 e6 Nh5 e7 Rc1 e8R Ne7 Ra3 Nf5 Re6 Qf6 d8R Nfg7 Nd7 Bb6 Rae3 Rc6 Kf2 Ba6 Ne2 Bb5 Nd4 Rac8 Rde8 Rc5 Re1 Rd5 R6e3 Rc6 R8e6 Nc3 Rb1 Ne2 Nb8 Neg3 d7 Ne2 d8Q Neg3 R6e5 Qe6 Nd7 Qh3 Re6 Qh2+ Bg2 Ngf1 Qe7 Qh3 Qe8 Nh2 Bf1 Nf6 Qeb8 Qh6 Qe5 Nfh5 Qf5 Ba6 Qh3 Bb5 Qg2
QrqBN3/2rQ1p1p/2bPB3/r1b1nP2/NR1n4/2N1kP2/N2Nq2b/2n4K b - - 0 1 illegal: No proof kernel
1N3Rn1/Ppq2p1r/1rQ2BP1/k2KR1b1/1P2n3/N2br3/2qq1N1n/1N4NQ b - - 0 1 illegal: No possible last move, all moves rejected
1N1q1bK1/6Qr/1b2P1r1/1k1p1B2/RP1pr1nB/N1rP1r1N/NN2bn2/2Q5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 a4 e5 axb5 exf4 Ra4 Qf6 Rd4 cxd4 b4 Qd8 Kf2 a5 Kf3 d5 e4 Kd7 Kg4 g5 Kf5 f6 Kg6 g4 Kf7 f3 c4 f2 h4 f5 c5 f4 e5 f3 c6+ Kc7 e6 Kb6 h6 g3 c7 g2 h5 a4 h7 a3 h6 a2 Ne2 g1R Na3 a1B Nc3 Nd7 Na2 Bb2 Bh3 f1R Bf5 f2 Rh3 Ba6 c8N+ Kb7 b6 Kc6 b7 Nc5 Re3 Re1 Nb6 f1R Na4 Be2 d3 Bc3 Nb2 Rc8 b8N+ Kb6 Re5 Rg6 Bg5 Nf6 Bh4 Bd2 Qc1 Ng4 Re3 Rf2 Rg3 Rc6 Rg2 Ne4 Rg1 Rc3 Rg2 Rhg8 h8Q Bg5 h7 Rf3 Qg7 Nef2 h8N Bge7 Rg1 Bc5 Rh1 Rh6 Ng6 Rgh8 Nf4 Rg6 Nh3 Rh7 Nb1 Kb5 Kg8 Bd1 Rf1 Re4 Re1 Bb6 Re2 Rc5 Rc2 Rc6 Rc3 Rc5 Ra3 Rc3 Ra4 Be2 Na3+
Q1N4r/2b1P1Q1/R2prb2/2Rn2Q1/pbN2Pbq/Pr3n2/1k2QQB1/1b1K4 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 e4 Ke7 f4 Ke6 h4 b5 c4 g5 h5 a5 h6 g2 h7 b4 c6 b3 c7 b2 c5 g3 c6 g4 Nh3 g1B Qf3 g2 Kd1 g3 Qf2 Qh4 Nd2 b1B a3 a4 Ng5+ Ke7 e6 Kd6 e7 Ra6 e8Q Ne7 e5+ Kd5 e6 Rb6 Nh3 Rb3 Ng5 Bg7 Qg8 Bf6 Qe2 Kd4 Nf7 Kc3 Nd6 Bf2 Qg5 g1B Bg2 Nd5 e7 Bb6 Ra2 Bgc5 Rc2+ Kd4 Re1 Bb4 Rc5 B6a5 Qf2+ Kd3 Re6 Bb6 Rb5 Kc3 Rc5+ Kb2 Qe2 Ba6 c8Q Bc7 Qf2 Bc4 Qa6 Be2+ Ke1 Bg4 Nc8 Nc3 Qae2 Nd5 Kd1 d6 Re5 Nd7 Ra5 N5b6 Rec5 Ne5 Ra7 Nd5 Ra6 Rg8 h8Q Nf3 Qhh6 Rh8 Qhg7 Bca5 Bh3 g2 c7 g1R+ Bf1 Rg3 Bg2 Re3 Na7 Bb6 c8Q Bc7 Qa8 Re6 Nc8 Nd4 Qf8 Rb3 Qfg7 Nf3 Nc4+
QB5n/1Q4bR/RbNpQQ2/2k2P1K/3P1p2/Pnq2QbN/5r2/1rbb2q1 b - - 0 1 illegal: No possible last move, all moves rejected
1Q5k/q1Nbrb2/1bQpPKnr/P2P1B2/1r3Q2/R2N2B1/q2rQpnQ/8 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 b4 axb4 Ra3 Ra6 Re3 Ra8 Rb3 cxb3 Kf2 g5 Kg3 b5 Kg4 b2 Kf5 b3 e4 g4 c4 b4 h4 g3 d4 g2 e6 Qb6 d5 Nf6 e5 Nc6 h6 Nh5 c5 Qa7 e7 Nf4 Nf3 g1R h5 Rg2 a5 Rd2 h7 Ng2 Nc3 b1Q+ Bd3 b2 h6 b3 Kf6 Qa2 Qe2 b1B Ne1 b2 Bf5 d6 Rh4 Bd7 Nd3 Rd8 Nb5 Bg7+ Kg5 Bc2 Ra4 b1R Ra3 Rb4 Qf3 Rc8 Qf4 Rc7 Bb2 Ba4 Bd4 Bd1 Bf2 Bh5 Bg3 Rb7 Bh3 f5 Nc7+ Kf7 Bg4 Rc8 h8Q Rg8 h7 Rd8 Qf3 f4 Bf5 Bg6 Qg4 f3 Qf4 Rdb8 Qd8 f2 h8Q Ra8 Qh2 Bf6+ Kg4 Kg7 e8Q Ne7 c6 Bf7 Qb8 Ng6 e6 Bd4 Kg5 R7b5 Qec8 Bb6 Qa6 Rc5 Qb5 Rc1 Qbc4 Rh1 Qc2 Rdd1 Qe2 Rd2 Qg1 Kh7 Kf6 Rh5 Qh2 Rh6 Ne8 Kh8 c7 Rd1 c8Q Rd2 Qbc7 Rb8 Qc6 Rb7 Qa8 Rb8 Nc7 Re8 Qab7 Re7 Qb8+
1q1Q2B1/3n1Rbk/Br2Q1rP/P1q1p2K/q2R4/1q4pn/1B1nP3/B1B2N1b b - - 0 1 illegal: No possible last move
5rnQ/bB1br1BQ/pb1qkNP1/2p5/R1b5/1q1n1BNn/P2P3K/B3B3 b - - 0 1 legal: proof: e4 c5 h4 g5 b4 gxh4 bxc5 f5 exf5 d6 c4 Kf7 c6 Qa5 c5 Nh6 c7 Ke8 c6 Ng8 Na3 Qd5 Rb1 Qd3 Rb5 Qd4 Rc5 dxc5 Nc4 Qd6 Na3 Qd8 f4 Kf7 Kf2 h5 g4 b5 Kg2 e5 g5 b4 f6 e4 f5 h3+ Kh2 b3 Qg4 e3 Nb5 h4 Qe2 a6 Qd1 e2 Ba3 e1B Be2 b2 Bf3 b1Q Qc2 Rh7 Nc3 Be7 Ne4 Qb3 Ne2 Qd6+ N2g3 Nd7 Bb2 Bd8 Ba1 Ne5 Rf1 Bd7 c8B Nd3 c7 Bf2 Bb7 Rg7 c8Q Bb6 Re1 Be3 Qb1 Bf4 Rc1 Be5 Rc4 Ba7 Ra4 Bf4 Qc6 Rf8 Qc8 Be5 Qc2 Bc3 Qb1 Ba5 Qh1 B5b6 Qc7 Ke8 f7+ Ke7 f6+ Ke6 g6 Rh7 Bd4 Rg7 Bf2 Rh7 Qa1 Rg7 Be1 Rh7 Kg1 h2+ Kg2 h1N Kh2 h3 Qd4 Ra8 f8B Re7 f7 Nhf2 Bg7 Rae8 Nf6 Rf8 Kg1 h2+ Kg2 h1B+ Kh2 Rd8 f8B Nh3 Bh8 Rc8 Bfg7 Rf8 Qh4 Bg2 Qh7 Bf1 Qb8 Be2 Rd4 Ne5 Ne8 Rf4 Bh6 Nf6 Ra4 Bc4 Qa8 Nd3 Qd8 Ng8 Ba1 Rf5 Bhg7 Nh6 Nf6 Rf4 Qdh8 Ng8 Ng4 Rf8 Nf6
kr5n/R4qb1/1p1PP2p/1r4p1/rP1QN2n/1B1R3K/bNR1bR2/1n1Q1R2 b - - 0 1 illegal: No proof kernel
1K1Q4/pn2r3/BP2QP1r/np1q1N1p/2R3nP/1N1qR1R1/1Rb3k1/Rbb5 b - - 0 1 illegal: No extended proof kernel
qr4Q1/B2qp1nN/3kP1n1/4r3/1bBrR2B/2ppPBq1/K1QPbR2/6B1 b - - 0 2 legal: proof: c4 h5 g4 c6 gxh5 b5 b4 Qb6 e4 Qe3+ fxe3 bxc4 Na3 a6 b5 a5 Nc2 Na6 Nb4 axb4 Bd3 Nb8 Be2 Rh6 Bf1 Rh8 h4 d5 a4 Kd7 b6 g5 e5 f5 a5 c5 b7 c3 a6 f4 h6 g4 a7 c2 e6+ Kd6 h7 d4 h5 b3 h6 f3 Rh3 b2 Qe2 b1R Rh1 c4 Qh2+ g3 Qh5 g2 Qg6 Rb4 Rh2 Bg7 Ba3 Nd7 Nh3 g1Q Ng5 Rb8 a8B Nf8 Rf2 Qg3 Bb2 Bd7 Ra4 Nf6 Ba3 c3 Bc4 Bb5 Qd3 Rg8 h8Q Ne8 h7 Ng6 Qe4 Rf8 Qg8 Rf5 h8B Be5 Bf6 Ng7 Nh7 Bf4 Bh4 Re5 Bb3 Be2 Bc4 Bd1 Qf5 c1Q Qc2 Qb2 Bd5 Be2 Bc4 Bd3 Kd1 Qa2 Kc1 Be2 Qb3 d3 Qb2 Qb3 Kb1 Qd1+ Ka2 Qh1 Rg2 f2 Qc2 f1Q Rh2 Qc6 Rf2 Re8 b8B+ Qc7 Bb7 Qfg2 Ba7 Rb8 Bf3 Qd7 Bh5 Qa8 Bf3 Rc5 Bb5 Rd4 Bc4 Kc7 Rb4 Bd6 Ra4 Rcd5 Bb4 Bc5 Ba5+ Kc6 Bc7 Bb4 Be5 Qh3 Bh2 Qg3 Bg1 Kd6 Ra5 Rg5 Re5 Rh5 Re4 Rg5 Qd8 Re5 Qg8
6R1/1kQ1b1pP/R1np1brN/3R1n2/1r1Q2Pr/q1Bp1R2/bNqP2R1/6K1 b - - 1 2 legal: proof: e4 c5 a4 b5 axb5 f5 exf5 h5 g3 h4 Bg2 h3 Qg4 hxg2 Qd4 cxd4 f4 a5 Kf2 e5 h4 e4 c4 d3 b4 a4 c5 d6 h5 Kd7 c6+ Kc7 f6 a3 f5 a2 g4 Kb6 f7 Bd7 h6 Qg5 h7 Ra3 f6 Ra6 c7 Qh6 c8R Ra5 Rc5 Qf4+ Nf3 g1R Rd5 Ne7 Nc3 Qh6 Nd1 Nf5 Nd4 Qg5 Bb2 Nh6 Bc3 Kc7 b6+ Kb7 b5 Nf5 Rh2 Be7 f8Q Nc6 f7 Be6 Rg2 Rh1 Nb2 Rh4 Kg1 e3 Qe8 e2 f8R e1B Rf7 Ne3 Rf3 Nf5 Qf8 Ra4 Qf6 Rb4 Qe5 Re8 Qf4 Kb8 b7 Rf8 Qe3 Rf6 Qe4 Ka7 b8R Rg6 Rg8 Kb7 b6 Bg3 Qe3 Be5 Qe4 B5f6 Qe3 Ng3 Nf5 Qf4 Qe5 Qc4 Nh6 Nf5 Qd4 Qb3 Rff2 Qc2 Rf3 Ka6 b7 Bf7 Re1 a1Q b8Q Qa3 Ra1 Be6 Qd8 Kb7 Ra2 Qab3 Ra6 Qa3 Rda5 Bc4 Rd5 Ba2 Qc7+
2R2Q1r/1k1P1pR1/qp5Q/rpP1B2K/1P6/1b4qn/1bR2nn1/RNN1Rq2 b - - 0 1 illegal: No proof kernel
K7/3Qn1Qp/n1Bq2Nq/2R2p2/n6P/2rP1k1N/pRQr1Pr1/QQbb4 b - - 0 2 legal: proof: b4 d5 a4 b5 axb5 c5 e4 dxe4 bxc5 g5 h3 g4 d3 Bd7 Bf4 Bc8 Bh2 g3 Qg4 gxh2 Qf3 Qb6 Qd1 Qd8 Kd2 Kd7 Kc3 Ke6 Kc4 Kf5 g4+ Kf4 g5 e5 h4 f5 g6 a5 g7 a4 b6 a3 Kb5 e3 c4 a2 b7 e4 c6 e2 c5 e1R c7 e3 Kb6 e2 c6 Ne7 g8Q Be6 Na3 Bb3 Nh3+ Kf3 Rc1 Na6 b8Q Bh6 Kb7 Qd6 Qg7 Rc8 Rc5 Bc1 Nc4 Qh6 Rg1 h1N Rg6 Rg8 c8Q Ng3 c7 Ne4 Qd7 Nc3 c8Q Na4 Rb6 Qd6 Qc2 Rd1 Qa1 e1Q Qf8 Rg4 Qfg7 Rd2 Rb4 Qee6 Bg2+ Ke2 Bh1 Rg2 Ne5 Qh6 Ng6 Kf3 Rb6 Be6 Rb2 Bb3 Qa7 Rf8 Qb8 Rc8 Ka8 Rc6 Qcb1 Bd1 Qb3 Rc7 Q3c2 Ke2 Rcb5 Rc3 Ra5 Rh2 Bc6 Rg2 Rd5 Kf3 Rc5+
5r2/QR2BB1p/3rb3/P1KR4/QrNpP2n/1q1pbrB1/2kPr3/3BB1n1 b - - 0 1 illegal: No possible last move
RKNnQr2/p3r3/1N1rn1R1/PB1Pkr2/b5Qb/3QQ3/r3pqPp/5Q2 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 Bb2 g5 Bd4 f4 Be3 fxe3 hxg5 Bg4 Bc4 Bd7 Bf1 Bc8 Ke2 Kd7 d4 Ke6 c4 b5 f4 h5 a4 h4 g6 h3 c6 b4 f5+ Kf6 c7 e5 d5 b3 c5 b2 g7 Ne7 g8Q Rh6 c6 Rh5 Qe6+ Kg5 f6 Kf4 f7 Na6 Qd3 Nc5 Nd2 b1R Nc4 Rf5 Nd6 Rb6 Nf3 Bd7 c8Q h2 c7 Rab8 Nd2 Nc6 N2c4 Qf6 Qce8 Be7 c8Q Nd8 f8Q Qf7 a5 Ba4 Rb1 Bh4 Qcd7 Rc6 Nc8 Rd6 Q6e7 Ra8 Rb8 Nce6 N4b6 Bf6 Ke1 e2 Kd2 e1R Kc3 e3 Kb4 e4 Be2 Rc1 Re1 Rc2 Rc1 Rd2 Rc6 Bh4 Bf1 e2 Qg5+ Ke5 Qge3 Bc2 Kb5 e1R Ka6 Ba4 Be2 Qf6 Qdg7 Ra2 Qg4 Rh5 Qff7 Qf1 Qff2 Rf5 Qg1 Qf2 Qf1 Qg1 Qdd2 Qf2 Bb5 Rb1 Qed3 e3 Qdc1 e2 Qce3+ Kf6 Rc7 Rb4 Rg7 Re4 Rg6+ Ke5 Rb7 Rf4 Rbg7 Rb8 Rg8 Rf5 Rf8 Rb7 Rfg8 Rbf7 Rh8 Rf8 Rhg8 Nc6 Kb7 Nd8+ Kb8 R8f6 Qb3 Nb7 Qc6 Ng7 Ne7 Rf7 Rc8 Nd8 Ka8 R7f6 Qe8 Rf8 Rg5 Kf6 Qbd3 Ree5 Rb8 Ree6 Nec8 Ree5 Qc5 Re7 Rg6+ Ke5 Qcc1 Nge6 Qcg5 Rg7 Qgc1 Nf7 Kb7 Rh7 Ra8 Nd8+ Kb8 Re7 Qce3+
r3Q1n1/q3BK1Q/Npb2p1p/QP3n1r/n2PQP2/1RbB2n1/7N/1kb4Q b - - 1 2 illegal: No possible last move
1b1R3B/5B2/6Np/1N1q2Pr/P4N1P/1prpQNNk/1bn1Q1nn/1b2b2K b - - 0 1 legal: proof: b4 c5 d4 f5 dxc5 a5 bxa5 Qc7 a4 Qd8 e4 g6 f4 fxe4 f5 g5 Ra3 Nc6 Rf3 Nb8 Rf4 gxf4 Kf2 Kf7 h4 Kf6 c4 b5 g4 d5 Kg2 e5 a6 e3 c6 d4 c7 f3+ Kh2 e4 a7 f2 c5 e2 c6 e1B Bb2 b4 Qe2 b3 Qb5 e3 Bc4 e2 Bf7 Bc3 Nf3 e1B Na3 Qd5 Qe2 Nh6 Nb5 f1N+ Kg2 Be6 c8Q Na6 c7 Nh2 Qe8 Rc8 a8N Bd6 Kg1 Bd7 Q8e3 Nb4 Ba1 Bb2 g5+ Kg7 Kg2 N6g4 Rg1 Nc2 Kh1 Rcd8 c8N Bb8 Ncd6 Rc8 Rf1 Rc3 Ne4 Bc8 Nac7 Ba6 Qf4 Nge3 Ng3 Ng2 Qfe3 Bb7 Bg8 Bc8 f6+ Kg6 f7 Bf5 Ne6 Be4 Nh5 Kf5 f8N Kg4 Ng6 Kh3 Ng3 Na3 Bf7 Bb1 Nd2 d3 Rf6 Rc5 Nf3 Nc2 Rf4 Rc3 Rc4 Rg8 Rc8 Rg7 Nh8 Rg6 Rd8 Rh6 Ng6 Rh5 Qc5 h6 Qce3 Ba3 Bb2 Rc6 Bc3 Bb2 Bh8 Rc3 Nef4+
qB2n2K/RNp5/2B4Q/2Q3nN/pnbP2p1/N2r1N2/1Nn1krPP/b1b5 b - - 0 1 illegal: No proof kernel
2n2b2/R1Prn3/3r1Q2/1KBQ1qb1/1B3p2/rB1N1kp1/2PpbPb1/N2B1B2 b - - 0 1 legal: proof: d4 a5 g4 c5 dxc5 e5 b4 h5 bxa5 hxg4 a4 Ra7 Ra3 Ra6 Rd3 Ra8 Rd4 exd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Ke4 c6 g5 h5 f5 a6 d5+ Kb5 d3 h6 d2 h7 g3 a7 g2 c7 g4 a5 d4 a6 d3 e3 Ne7 Nf3 g1B Ne5 Nd7 Ba3 Nb6 Bb4 Bh2 Qe1 d1R Qc3 Bf4 Rg1 Rg8 h8B g3 Bc5 Rg6 Nd2+ Kd5 Rh1 Rd6 Nb3 Ke4 Na1 Bg5 Qb2 f4 Qc3 d2 Nd3 Bh3 Qf6 Kf3 e4 Qc8 e5 Qf5 e6 Rad8 a8Q R8d7 a7 Bg2 Qd8 Re1 a8B Nbc8 Bg7 Re4 Rh8 Ra4 Bh6 Ng8 e7 Ra3 e8B Nge7 Bf7 Nc6 Bb3 b6 Kc4 b5+ Kc3 b4+ Kc4 Qg6 Bb7 Qf5 Ba6 N6e7 Kb5 Bg7 Qg8 Bf8 Qd5+ Qe4 Ba2 b3 Bg7 b2 Bb3 b1B Bh6 Bg7 Rd8 Bf8 Bg7 Nb6 Ra8 Nbc8 Ra7 Ba2 Qff5 Re6 Bc3 Rc6 Qf6 Rcd6 Qdd4 Qf5 Bb4 Bg7 Ba4 Bf7 Bb3 Bf8 Qc4 Bh5 Qcf7 Bg4 Be2+ Ke4 Bd1 Be2 Qc4+ Kf3 Qd5+ Kg4 Kc4 Bef3 Nb2 Ra5 Kc3 Ra4 Bf1 Be2 Nd3 Raa6 Kc4 Ra3 Qg8 Kf3 Kb5 Qg4 Qc4 Qf5 Qd5+
1N2r3/1KN1Q1RR/4P2p/b2n1rN1/bNkbb3/1q4NP/p4PpQ/4Brn1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 g4 fxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 d4 e6 d6 Qg5 d7+ Kf7 d5 Kg6 d6 Kf7 Bg2 Qd8 Bd5 exd5 Kd2 Ke6 Kd3 c5 e4 a5 b4 g5 e5 g3 b6 a4 h3 a3 b5 c4+ Kd4 h6 Kc5 c3 b7 d4 b6 a2 Ne2 c2 Rg1 g2 Rf1 g1R Bb2 c1B Qd2 g4 Qb4 g3 Bc3 d3 Rd1 d2 Na3 Bg7 Nc2 Nc6 b8N Rf1 b7 Nf6 Qh4 Rf8 Nb4 Qe7 Kb6 Qf7 d8Q Bd7 Qf4 Nd4 N8a6 Nf3 b8N Bc6 d7 Ng1 Qc7 Ba4 Kb7 Nd5 Rb1 g2 Qh2 Qf3 Ng3 Rf5 Re1 d1B Re2 Qf4 Be1 Bdc2 Re4 Qh4 Rg4 Bd2 Qd8 Bh8 Rg7 Be4 Rc1 Qg4 Rc7 Qf3 Qg5 Qa3 Rh7 Qb3 Qe3 Bg7 Qa7 Ke7 e6 Kd6 d8N Bd4 Rcg7 Ke5 Nc7 Kd6 Qa6+ Kc5 Qd6+ Kc4 Qe7 B2c3 Nf7 Bd2 Nba6 Rg8 Ng5 Re8 Nb8 B2c3 Nb5 Bd2 Nd3 Bb4 Nc7 Ba5+ Nb4
b1r3Rb/2Qp2P1/1n1N3p/n1Q5/QB2Qk2/3R1rrP/B1p4P/K1b1Qqr1 b - - 0 1 illegal: No proof kernel
1R4K1/RQN1r1b1/1p1Q2q1/B1P1n2B/1nQb1Q1p/kr1P4/1PQ1pr1r/1b6 b - - 0 1 illegal: Other
3q1R1r/pbP4P/1kp2QK1/B1R2N2/R1Rr1QbR/P7/1r1r1p2/3nb1Nn b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 gxh5 c5 bxc5 Be7 c6 Bf8 c4 b6 c5 Ke7 c7 Na6 c6 Bb7 c8R Nb8 c7 Ke8 Bg2 Ba6 Bc6 dxc6 Kf2 Kd7 Kf3 g5 Kg4 f5+ Kf3 b5 e4 b4 d4 b3 h4 b2 e5 Ne7 d5 Bb7 e6+ Kd6 h6 Kc5 h5 Na6 h7 Kb6 d6 Nc5 d7 Nd5 h6 Ne3 e7 Nd3 e8R Nf2 Nd2 b1R Rh4 Rb2 Ne4 Bb4 Qd2 Ned1 Nd6 Nh1 Re5 Bc3 Qh2 Be1 Rc5 Rb8 a3 Rd2 Bb2 Rd4 Bc3 Rd2 Ra2 Rd4 Rc2 g4+ Kg2 g3 Kf3 g2 Ba5+ Ka6 R2c4 Rd2 Nh3 g1R Qg3 Rgg2 Ng1 Rd4 Ra4 Rgd2 Qg5 Qf8 d8Q Qg8 Qdf6 Qd8 Bc3+ Kb6 Qg3 Re8 h8R Ree2 h7 Rb2 Qf2 Red2 Rg8 Ra8 Rgg4 Rb8 Kg2 f3+ Kh3 f4 Nf5 Ra8 Qg3 f2 Rb8 f3 Ba5+ Ka6 Rf4 f1B+ Kg4 f2 Kg5 Bh3 Kg6 Bg4 Qh2 Rd6 Rfc4 R6d4 Bc3+ Kb6 Qf4 Qd6 Rf8 Rc8 Rf7 Rh8 Rf8 Qd8 Ba5+
2bn3R/2Br1R2/2R1qPp1/R3QQPr/3PBb1k/2bb1R2/p3n1Kp/3q3N b - - 0 1 illegal: No proof kernel
bN1N1b2/4n1q1/pq3q1q/p4r1Q/NNP2p1Q/P6r/1RPnK1R1/1k1N3B b - - 0 1 legal: proof: g4 e5 f4 exf4 d3 c5 Bd2 h5 gxh5 c4 dxc4 b6 Ba5 bxa5 b4 Ke7 h4 Ke6 e4 Ke5 h6 g5 h5 d5 b5 f5 h7 f3 b6 a6 a3 f2+ Kd2 Kd4 b7 g4 h6 g3 e5 g2 e6 Nc6 b8N Ne5 e7 Nf3+ Ke2+ Nd2 e8N Ne7 Ra2 Qb6 Rh2 Bb7 Nh3 g1Q Nc3 Qg7 Nf6 Ra7 Rg2 Ba8 Na4 f4 Nb2 Kc3 Qe1 d4 Qd1 Rg8 h8Q Rc7 h7 Rc5 Qe1 Rf5 Qd1 Qh6 Qe1 Rg3 Qd1 Bg7 Qd8 Bf8 h8N Qg7 Nf7 Rd3 Qe8 Rg3 Nd8 Qh6 Qe1 d3+ Kd1 Re3 Qh5 Rg3 Be2 f1Q Nf2 Rh3 Bf3 Qg1 Bb7 Qh2 Qh1 Qg3 Ke1 Qgg7 Nd5+ Kd4 Nb4 Kc3 Kd1 Rg3 Qg1 Rh3 Rg4 Nb1 Qe1+ d2 Bh1 Qbf6 Rg2 Qb6 Ke2 Qbf6 Kf1 Qb6 Qe4 d1Q+ Qe1+ Qd2 Qee2 Qd5 Qeg4 Qdf7 Qgh4 Qff6 Na4+ Kd2 Nd1+ Kc1 Ke1 Nd2 Ke2 Kb1 Rb2+
b1Q4q/3P2pP/6rk/1nR1n1bq/Q1p2RP1/4rr1B/2p2B1K/QQQ2Nr1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxc4 a4 f5 axb5 h5 exf5 h4 Nc3 Rh6 Nce2 Rh8 Ng3 hxg3 d4 Kf7 f4 c5 h4 e5 b4 a5 f6 Kg6 f7 a4 d5 a3 b6 a2 f5+ Kh7 b7 g2 Kf2 c3 Kg3 c2 b5 e4 d6 c4 h5 e3 d7 e2 h6 e1R b6 Bb4 f8Q Qg5 f6 Qh5 f7 Qc5 Rh5 Re7 Ne2 g1R+ Kh2 Ra3 Bh3 Bd2 Ng3 Rf3 Nf1 Bg5 Be3 Na6 b8Q Bb7 Qe5 Nc7 Qc8 Nb5 f8Q Ba8 b7 Qd5 Rb1 a1Q b8Q Re8 Qef6 Ne7 Qc1 Nc6 Bf2 Ree3 Qb4 Ne5 Qa4 Rf8 Qfa6 R8f6 Qbb6 Kg6 h7 Qg8 Rb3 Qh8 Rd3 Qa3 Rd4 Qc5 Rf4 Bh4 Qba5 Nf7 Qb3 Qe5 Rg5+ Kh6 Qaa1 Rg6 Qbb1 Qc5 Re5 Bd8 Re8 Qh5 Re5 Bg5 Rc5 Ne5 Q6a4
b5r1/n3pB1n/p2n2PK/PBB1r3/b4R1Q/1Nb1PrBN/p2r4/1k3B1Q b - - 0 1 legal: proof: g4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 Qb6 f4 Bb7 b4 Bd5 g6 Qc6 f5 Qe6 f6 Bb7 g5 Bc8 a5 Qe5 Ra4 bxa4 Ba3 Qh2 Bb2 Qh6 Bc1 Qg7 fxg7 Bb7 Rh2 Ba6 Rh1 Bc8 Kd2 d5 c4 Kd7 e3 Kc6 b5+ Kc5 b6 Kb4 c5 h5 b7 f5 c6 h4 c7 f4 Bd3 h3 Ba6 f3 Nc3 h2 Bd3 a3 Qe1 Kb3 Qg3 a6 Qd6 f2 Nb5 Ka2 Nh3 f1R Rg1 h1B Rg2 Rf3 Qb4 Nc6 b8B Bd7 c8B Na7 Ke2 Nf6 g8Q Bg7 Rg4 Rh5 Rf4 Nh7 Qh8 Ka1 Bc7 a2 Ba3 Rb8 Bb7 Rg8 Bc6 Bf6 g7 Be8 g6 Re5 Bc4 d3+ Kd2 Bd7 Nd4 Bg2 Nb3+ Kb1 Bd6 d4 B6b5 Bc6 Kd1 d2 Ke2 d1N Qa4 Nf2 Bac5 Ne4 Bb8 Rf8 g8B Nd6 Bgf7 Rg8 Kd3 Ng5 Qh4 Nh7 Qb4 Ba8 Qd2 Bh1 Qh2 Bg2 Qh1+ Bf1+ Kd2 d3 Kc3 d2 Kd4 Kc2 Bc7 Be2 Bb8 Bd1 Bf1 Kb1 Kd3 Bc2+ Ke2 d1R Bc7 Rg3 Kf2 Rf3+ Kg2 Rf2+ Kg3 Rf3+ Kg4 Rd2 Bb8 Bg5 Kh5 Bf6+ Kh6 Bd1 Nc1 Ba4 Nb3 Re6 Rb4 Bc3 Rf4 Re5 Nf2 Red5 Rf6 Ndc8 Bg3 Re5 Rf4 Nd6 Nh3
1RNR3N/rr3np1/1p1RP1P1/B1P4n/Qppb1r2/5k2/KRR1Q1b1/1nq5 b - - 0 1 illegal: No proof kernel
5b1K/P1Q5/k1Bp1p1p/1p1PQN1b/r1b2q1P/QR4rQ/1nBn4/1NQ3n1 b - - 1 2 legal: proof: b4 c5 e4 a5 bxa5 f5 exf5 Qb6 a4 Qd8 Ra3 Nh6 Rb3 Ng8 Rb4 cxb4 f4 e6 f6 Qb6 f7+ Kd8 f5 Kc7 f6 Kd6 Bb2 Qd8 Bc3 Be7 f8Q Kc6 f7 Bd6 Bf6 gxf6 Ke2 b5 Kd3 Kb7 Ke4 h6 g4 b3 h4 e5 Kf5 e4 Kg6 e3 Kg7 e2 c4 e1N d4 b2 a6+ Ka7 c5 Ng2 c6 Bg3 d5 Qe7 a5 Qb4 c7 Bd6 g5 Ne1 g6 Qe4 Qe8 Nf3 f8Q Qf4 Ne2 Ng1 Rh3 Ne7 Rb3 Nec6 Ng3 Ne5 Bd3 Nef3 Nf5 Nc6 Bc2 Nd2 Qc1 Nb4 Qe5 Rg8+ Kh7 Bc5 g7 Nd3 Qd8 Bf8 Qde7 Bb7 c8Q Bc6 Qa3 d6 Qce6 Be8 Qe7+ Kb8 a7+ Kc8 a6 Bh5 Q7e6+ Kc7 Qd7+ Kb6 Qde6 Rc8 a8B Rc4 a7 Ra4 Bc6 Ka6 Nc3 b1B Qd7 Bg4 Qc7 Ba2 Nb1 Nb2 Kg6 Rh8 g8Q Be2 Qgg7 Rg8 Kh7 Bh5 Qg2 Rg5 Qh3 Rg3 Rd3 Bb3 Kh8 Bc4 Rb3
1Nk5/2rP4/rp1nQ3/p3pb1R/PrN5/3B1n2/NpRPnN1Q/q1b2N1K b - - 0 1 illegal: No possible last move, all moves rejected
1r4QN/p4Qp1/2N2R2/PNNP3P/5bpp/1k1nr1nr/1q2b3/1NB2bKB b - - 0 1 illegal: No proof kernel
NNrb1N2/K3p3/1p1P2P1/Nr1p3B/2nR2bQ/1q2P3/2kQqNp1/2qn2B1 b - - 0 1 illegal: No proof kernel
K5QN/1pb2p2/1Rrn4/Q1b1Qpnb/1BB2Pq1/4b3/p2QPP1Q/1rk1N3 b - - 0 1 illegal: No proof kernel
RN1n2Bb/1n1rb3/1Q1PB2B/1NPKp1B1/1r6/1p1ppQ2/kq2P3/3bB1b1 b - - 0 1 illegal: No proof kernel
1bk1b1rn/1N1r2R1/NP3K1Q/4N1n1/P1Q3N1/5Q1n/1pb3Pr/4qB1R b - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 a3 b5 Bb2 b4 Bf6 c5 Be5 c4 Bb2 c3 Bc1 Qb6 bxa4 b3 Bb2 Qb4 axb4 cxb2 Ke2 Kd8 Kf3 e5 Ke4 h5 d4 h3 f4 h4 f6 h2 b5 h3 d6 Kd7 Kf5 e4 f7 e3 b6 e2 d5 e1N Nd2 b1B+ Ne4 b2 Qg4 Nf6 Nf3 Bb7 Ra3 Nd3 Nc5+ Kc8 Na6 Bc2 Ne5 Nbd7 Ke6 Rb8 f5 Ne4 f6 Ndf2 Rg3 Rh7 Qf4 Bg7 Ng4 Bc6 f8N Bh6 f7 Ne5 Ng6 Ng5+ Kf6 Be8 f8Q Rd7 Qf3 Nef7 N6e5 Nh8 Qg7 Ne6 Qf7 Bf4 Qh5 Ng5 Qh6 Rh7 Rg1 h1R d7+ Kb7 d8Q h2 Qd6 Nfh3 Qb4 Kc8 d6 Rg7 Nc7 Rb7 Qc4 Rg8 d7+ Kb8 d8N Kc8 Qce4 Ra7 Na6 Rd7 Nec6 Bc7 Nce5 Bb8 Nb7 Bb1 Nf2 Bc2 Bd3 Ngf7 Rg7 Nfg5 Re1 Rg1 Nfg4 h1Q Rb1 Rc1 Bb5 Qd1 Qed3 Qe2 Qde4 Rh1 Rd1 Rh2 Rh1 Qd2 Bf1 Qe1 Qc4+
n4bqR/Qbnp2qk/P7/4QN2/rN1NBP2/3PB2q/1B2N1r1/b1K5 b - - 0 1 illegal: No possible last move
QbRR4/Bq3N1b/1PN5/R3PN1b/1QPr2p1/b1K2k1r/5nn1/R6b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 cxd4 fxe5 Ba3 Bd2 Bc5 Bc1 Bf8 gxh5 a5 b4 d3 bxa5 Ke7 c3 Nf6 Bg2 Ng8 Bd5 Ke8 Bb3 Ba6 Ba4 Bc8 Bc2 dxc2 Kd2 Ke7 e4 Ke6 h4 d5 a6 f5 b6 g5 h6 d4 c4 f4 a7 d3 h5 f3 h7 f2 h6 f1B Ra4 Qc7 Ba3 c1B+ Kc3 d2 Ra6 Bd3 Qa4 d1B Ne2 Bb7 Ra5 Nd7 Qb4 Bf4 Nd2 Ngf6 Ng3 Bh5 Nb3 g4 Nf5 Nc5 Ra1 Rd8 a8Q Rd4 Bc1 Bh2 Bf4 Bc2 Bg3 Nd3 Bf4 Nf2 Bg3 Kf7 e6+ Kg6 e7 Kg5 e8R Bc5 Rc8 Nd5+ Kb2 Nf4 Kc3 Ng2 Rd8 Qc6 Bb8 Qd7 Ba7 Bb8 e5 Kf4 Rc8 Kf3 Rd8 Rf8 h8N Qd5 Nf7 Rh8 h7 Be4 Qa4 Ba3 Qb4 Qd7 Ne7 Bbd5 Nc6 Qb7 Rc8 Rd8 h8R Bh7 Re8 Rd6 Rg8 Rh6 Rcd8 B5g6 Rc8 Rh3 Rgd8 Bde4 Nc5 Bh5 Ne6 Bd5 Ng7 Ne3 Nh8 Ke2 Kb3 Bh1 Nf7 Kf3 Kc3 Ng2 Nf5
K2kB3/bR2N1P1/2pb4/P3Rr1b/2Rr2N1/bb2Q1Pn/q4nRQ/7Q b - - 0 1 legal: proof: d4 g5 e4 d5 a4 a5 h4 f5 hxg5 c6 exf5 Bg7 c4 Nf6 cxd5 Kf7 d6 Bf8 d5 Ng8 d7 Qb6 d6 Qc7 b4 axb4 Ba3 bxa3 dxc7 Ra5 Ne2 Ra7 Ng1 Ra8 Ke2 h5 Ke3 b5 Kd4 a2 Kc5 e5+ Kb6 Ke7 d8R b4 f4 h4 a5 e4 g3 e3 g6 e2 g7 e1B Be2 h3 Nf3 h2 Ne5 b3 Rg1 h1B Nc3 b2 Rb1 a1B Rd5 Ke8 f6 Bg4 Kb7 Rh5 f5 Nh6 Rg2 Ba3 f7+ Ke7 c8Q Bf2 f8R Nf7 Qd2 Ng5 Qe3 Nd7 Bd1 Be2 Ng4+ Ne5 Rb5 Nh3 f6+ Kd6 f7 Ke7 Rh8 Rf5 Rh4 Bf3 Qh8 Rd8 Qh7 Rd4 Ka8 Kd8 Nd5 Nd3 Ne7 Bd5 Qh5 Bb3 Re5 Bg1 Bf3 Ndf2 Bd5 Bd6 Be6 Ba3 Bd7 Bd6 Be8 Ba3 Rf1 b1Q f8Q Qa2 Qfh8 Bd6 Q5h7 Bb2 Rb1 Bba3 Rb2 Bc2 Rb7 Bb3 Rh2 Bf3 Rg2 Rf8 Qc2 Rf5 Qb1 Bh2 Qh1 Bg1 Nh2 Bh5 Qh7 Rd3 Rc4 Rd4 Ng4 Rdf4 Nd5 Ng5 Ka7 Nfe4 Qh8 Bf7 Q8h4 Bh5 Q4h2 Nh3 Qc5 Be3 Ka8 Nef2 Ne7 Re4 Qd5 Ba7 Qd3 Rd4 Qe3
bqB1Q1b1/b1n1P2P/2n2Q2/3N4/1Qpn3r/b1BRPr1N/6K1/N2k3N b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 f4 a4 fxe5 Qd7 a3 Qe7 Ra2 Qd7 Rc2 Qd8 Rc4 bxc4 b5 Bxa3 Qb3 Bf8 Qc2 a3 Qd1 c3 Nxc3 Ba6 Nb1 Bc8 Kf2 Ke7 h4 c5 d4 f5 e6 Kd6 b6 g5 b7 g4 h6 f4 e3 a2 e7 a1B h7 g3+ Kg2 c4 h5 Nf6 h6 Bd7 Qa4 Qa5 Nc3 Ne8 Nce2 Qc3 Bd2 Nc7 Nh3 Be6 Qe8 Nc6 b8Q Bb2 Qb3 Qa5 Qb4+ Qc5 Rh2 Bg7 Rh1 Rf8 h8Q Ba3 h7 Rd8 Rh2 Be5 Qf6 f3+ Kg1 g2 Ng3 Rd7 Nh1 Bf4 Kf2 g1N Bd3 Rd8 Bf5 Ne2 Rg2 Bh2 Rg1 Be5 Rd1 Bf4 Kf1 f2 Kg2 Bh2 Qg7 Bg8 Bc8 Rf3 Qf6+ Ne6 Be1 Bf4 Rd3 Bg3 Bd2 Be5 Qb3 Qa7 Qb5 Qb8 Qa4 Kc7 d6+ Kb6 d7 Nc7 d5 Kc5 d6 Ned4 Qb4+ Kd5 Qeg6 Rf8 Qe8 Ke4 d8N Rf4 d7 Rh4 Nb7 f1B+ Kf2 Bf4 d8N Bg2 Ne6 Bd6 Nef4 Bc5 Kg1 Kf3 Na5 Ba7 Nd5+ Ke2 Nb3 Kd1 Na1 Be4 Qh8 Rff4 Qf6 Rf3 Kg2 Nd8 Ndf4 Ba8 Nd5 N8c6 Bc3+
qq1Br1QN/1R6/PK1Q2P1/1R4Pr/1n1N2pk/q1nb3n/RN4R1/2n5 b - - 0 1 legal: proof: f4 h5 c4 d5 cxd5 c5 d4 f5 g4 g5 e4 a5 exf5 c4 b4 axb4 Be2 Bh6 fxg5 Ra5 g6 Be3 g5 Ra8 Bg4 hxg4 Bd2 Bf4 Be3 Bd6 Bc1 Bc5 dxc5 Ra4 Bf4 Ra5 Bc1 Ra8 Kd2 b5 Ke3 e5 h4 Ke7 a4 c3 h5 e4 Kd4 c2 a5 b3 h6 b2 c6 e3 Kc5 b4 c7 e2 d6+ Kd7 f6 Ke6 a6 Kf5 h7 e1Q d7 b3 f7 Qg3 f8R+ Nf6 Na3 b1N Nc4 b2 Nf3 Nc6 Qd6 Nb4 Kb6 Nc3 Rg1 b1Q Bb2 c1N Ra2 Qe4 Rg8 Nh5 Rg7 Nf4 Rg2 Nh3 Ba3 Bb7 Nb2 Qb8 c8R Qe8 d8Q Be4+ Rb7 Bd3 Nd4+ Ke4 Q6d7 Kf4 Rc5 Qg8 Rb5 Qf3 Rf2 Kg3 Rg2+ Kh4 Qg7 Qb3 Qd6 Re8 h8N Qa4 Nc4 Ra7 Bb2 Qa3 Qg8 Qf8 Ba1 Qa8 Nb2 Qf4 Rb8 Rh7 Rb7 Rh5 Nc4 Ne4 Bc3 Qe5 Nb2 Qg3 Bd2 Nc3 Bf4 Qh2 Be5 Qg3 Bf6 Qh2 Bd8 Qe5 Qf6 Qeb8 Qd6
1BQBK3/1N1rP2R/1k1Q4/3R1qqP/qnrR4/1Q3p2/3P3b/qrQ3b1 b - - 0 1 illegal: No possible last move
4r3/bk1b1BQ1/2P4R/1b2nPb1/2b3b1/2QqrRK1/BRN2p1P/2Q2R2 b - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 c5 d4 Nc6 dxc5 Nd4 f4 e5 fxe5 f4 Bb5 Nf5 Be2 Ng3 Bf1 Nf5 exf5 g5 g4 f3 Bf4 f2+ Kd2 h6 Nc3 gxf4 Ne4 h5 g5 Kf7 Nf6 Ke7 Ng4 hxg4 Bg2 Kf7 Bf1 Ke8 Ke2 b5 a4 d5 c4 Kd7 e6+ Kc7 e7 g3 Kf3 d4 e8B d3 a6 g2 a5 d2 a7 b4 a6 b3 g6 b2 g7 b1B c6 Bc2 Bf7 Bb4 Rb1 Nh6 g8Q Ba3 Qg7 Rb8 a8R Ba4 a7 Bd7 Qc1 d1B+ Ne2 g1B Rb2 Bb5 Kg2 f3+ Kg3 Be7 Nd4 Rb7 Nc2 Re8 Bg2 Kb6 c7 f1B c8Q Bg5 Rb8 Bc5 a8R f2 Bgd5 Ng4 Ra3 Ne5 Rf3 Ka6 Rg1 Ba7 c5 Bfe2 Ba2 Bec4 Rf1 Bde2 Qc7 Rb6 Ra8 Rbe6 Qa5+ Kb7 Qc3 Bd1 Rf4 Bg4 Rf3 Ra6 Rc8 Ra3 Rc6 Rb3 Rh6 Ra3 Qa5 Re3 Qad2 Bc8 Qb4 Qd3 Qc3 Bd7 c6+
2Qr4/b2kNnqp/b5n1/1R5b/bR1pPB2/4R3/N1P2PK1/1RQ3Nn b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 g5 hxg5 b5 axb5 f5 b6 f4 Nc3 f3 exf3 a6 Nb1 Bg7 Rh5 Bh6 Rh1 Bf8 b4 e5 b5 e4 b7 e3 b6 Ra7 Bb5 axb5 Rh2 Ra4 Ne2 Rc4 Ng1 Rc6 Rh6 Re6 Rh1 Re4 fxe4 Ke7 Qe2 Kf7 Qd1 Ke8 Kf1 d5 g4 b4 g6 e2+ Kg2 e1N+ Kh3 b3 g7 b2 Ne2 d3 Ng3 d4 Nh5 d2 Kg3 Nd7 b8R Nh6 g8N Ng2 b7 Nf7 g5 Ne3 g6 Nde5 g7 Kd7 Ra3 Nf5+ Kg2 Bc5 Nc3 b1B Na2 Qf8 Re3 Ng3 Ne7 Ba7 g8Q Qg7 Nf4 Ng6 Qf8 Rg8 Ne2 Rh8 Rf1 Nh1 Ng1 Rg8 Qe1 d1B Bd2 Bh5 Qc1 Kc7 Rfe1 Bd7 Qe8 Ba4 Qc8+ Kd6 Ra8 Rd8 b8R Ng5 Rb4 Nf7 Qc5+ Kd7 Rab8 Rc8 R8b5 Rd8 Nc3 Ba2 Qc8+ Ke8 Rf1 Bc4 Na2 Bce2 Reb3 Bd3 Bf4 Bde2 Rb1 Bd3 Re1 Bc4 Qb8 Kd7 Re3 Bd3 Ra5 Ba6 Rab5 Bc5 Qa8 Ba7 Qc8+
4RbK1/n2p3B/1BPrQr2/1b2PR2/4PnR1/nB4p1/Q2N4/1B3bkb b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 h4 g5 hxg5 e4 d4 cxd4 f3 Be7 fxe4 Bd6 e5 Bf8 g4 a5 g6 f6 Nd2 a4 Ndf3 Qa5 bxa5 f5 g5 Nf6 Nh2 Ng8 Ng4 fxg4 Kf2 Ke7 Kg3 Ke6 Kh4 Kf5 Kh5 Ke4 c4 g3 a6 h6 g7 a3 Kg6 h5 Kf7 a2 g6 h4 a7 h3 b6 d3 c5 d2 b7 Ke3 c6 Kf2 e4 h2 Nf3 Rh6 Bd3 Na6 b8R Nc5 Qb3 d1B Bb1 Nd3 Qe6 Be2 Nd2 Ne7 g8B Nf4 g7 Bb5 Bh7 Bca6 Re8 Nc8 g8B Bf1 Bb2 Bab5 Bd4+ Kg2 Bg1 Rb8 a8Q Na7 Bb6 Rc8 Qe7 Rd6 Qe6 Rb8 Bd3 Rd8 Re1 a1N Bb1 Nc2 Rd1 Nc8 Qaa2 Na3 Re1 Na7 Rc1 Bfe2 Rcf1 Bed3 Rf3 Ra8 Rhf1 h1B R1f2+ Kg1 Rh2+ Rd4 Rh4 Bf1 Rf2 Rd6 Rg4 Be7 Kg7 Rb8 Bf7 Bf8+ Kg8 Bbd3 Bc7 Rb2 Bb6 Bb5 Qh6 Rc2 Bb3 Rc3 Qg6 Rcd3 Qf5 Rf6 Qe6 Rd6 Ba5 Nd3 Rf5 Nf4 Bb6+
1q2r1R1/2b1Pqr1/2Nr2P1/p1kpb1RP/2N3b1/1rQ2N2/4R2Q/3B1KN1 b - - 0 1 legal: proof: c4 e5 f4 b5 fxe5 c5 g4 Qe7 d3 Qd8 Bd2 b4 Bc3 b3 d4 cxd4 axb3 dxc3 b4 Qb6 b5 Qd8 h3 g5 Ra4 h5 Ra1 Nf6 Qd3 h4 Qd1 Nh5 gxh5 g4 Ra2 g3 Nf3 Nc6 Ra5 Nb4 Ng1 Nd5 Ra6 Nf6 Ra1 Ng4 hxg4 Qc7 Ra6 Qb6 Ra1 Qd8 b4 Ke7 e4 f5 c5 d5 e6 a5 c6 Kd6 b6 g2 e7 c2 e8N+ Ke5 c7 c1Q b5 h3 g5 f4 g6 h2 b7 f3 b8N Qf6 b6 Qf5 b7 Ra6 Be2 Rd6 Ra2 Qcf4 Qd3 Qf7 Bd1 Bg4 c8R Bg7 Nd2 Rf8 Qc2 Kd4 e5 Bh8 e6 Be5 e7 Rg8 Nh3 g1B Kf1 f2 Qb3 Rh8 Nc6+ Kc5 b8Q Rg8 Qd3 Rg7 Nf3 Qb4 Qc7 Qb5 Re2 Qb8 Kg2 f1R Qc3+ Kb5 Rd8 Bb6 Rg1 h1R Rc8 Re6 Qd6 Bc7 Rd8 Bh2 Qf4 Rd6 Qfd2 Be5 Qdc2 Re6 Nd6+ Kb6 Nc4+ Kc5 Rg8 Rd6 Ne1 Rff6 Nf3 Rd8 Q2b2 Re8 Kf1 Rd6 Qbc2 Rh2 Rgg2 Rh1+ Ng1 Rh3 Q2d2 Be6 Rg5 Bg4 Qf4 Rg3 Nh2 Rd3 Nhf3 Re3 Qh2 Rd3 Qe1 Rb3 Qc3
Qn1b1nq1/q2P1Rq1/k2pn2q/2PB1Q1R/2p1P3/5N2/KB1Q3b/1R2R3 b - - 0 1 legal: proof: d4 a5 f4 b5 a4 e5 axb5 exf4 c4 Ra6 c5 Re6 c6 d6 Qa4 Re7 Qd1 Rd7 cxd7+ Ke7 g4 h5 Ra4 c5 Kd2 g5 Ra3 f3 Ke1 c4 Ra4 Rh6 Ra1 Re6 Qd2 Re5 Qd1 Rc5 dxc5 Ke6 Na3 Kf6 Nb1 Ke7 Na3 f5 Nc2 f4 Ne3 Bb7 Ra4 Be4 Ra1 Bf5 gxf5 Nf6 Ng4 hxg4 Bd2 Ng8 Be3 Kf7 Bc1 Ke7 Kd2 f2 Kc2 g3 Kb1 g4 h4 a4 e4 g2 b4 f3 h5 a3 b6 a2+ Kb2 g3 h6 Nf6 b5 Nh7 Rb1 a1N b7 Nb3 b6 Nd4 Qc2 Ne6 Ka2 Qc8 f6+ Kd8 f7 Be7 Rh5 Nhf8 h7 Bf6 Be2 f1Q h8R f2 Bb2 Qc1 Bg4 f1Q R8h7 Qh6 Nf3 g1B Qd2 g2 Re1 Bh2 Bh3 g1Q Bf5 Nd4 Be6 Qgg7 Bd5 Qh1 Qc3 Qhg2 Qd2 Qg8 Rg7 Qc7 Rh7 Nde6 Rg7 Na6 Rh7 Q2g7 b8R+ Qc8 b7 Kc7 Ra8 Qb8 Ra7 Ng6 f8Q Bd8 Qf5 Ngf8 Ra8 Qa7 Rb8 Qc3 Re7 Qcg7 Rf7 Ng5 Be6 Kc6 Bd5+ Kb5 Rc8 Nge6 b8Q+ Qb6 Qa8 Nb8 Rc6 Qb7 Ra6 Qa7 Ra3 Ba5 Rc3 Ka6 Rcc1 Bd8 Rb1
1N4K1/q2q1B2/QQ4Q1/qb1r1rB1/1P2qP2/Q1p2r2/k3PNpR/5r1N b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g6 h4 g5 d4 e6 c4 dxc4 d5 e5 Ra2 Bb7 Rd2 Bc8 Rd4 exd4 f4 f5 g3 g4 Qb3 Nd7 Qd3 Bh6 Qd1 Bg5 hxg5 Ne7 Kd2 Ne5 Ke1 N7g6 fxe5 f4 Be3 f3 Bc1 Nf4 gxf4 Ke7 Na3 Kd7 Nb1 Ke8 Kf2 Ke7 Kg3 h5 Kh4 c5 e6 Kd6 b6 a5 b7 g3 b8N c3 e7 a4 e8Q a3 Rh2 a2 Bh3 a1Q Bd2 d3 Qb5 c4 Qb3 c2 Be3 c1R Nc3 d2 Bd4 d1Q Qa3 f2 Be6 f1R Bf7 Qa5 g6 Rd8 Kg5 h4 Kf6 h3 Kg7 Bd7 Bf6 Rf3 Bg5 g2 Qba4 Bb5 Qb2 Qc2 Nd1 c3 Nf2 Rf1 Qc1 Qe4 Nh1 Ra6 Qaa3 Rc6 Qa4 Rc5 Qa2 Rd7 Kg8 Qa7 Qc4 Q1a4 g7 Q4a5 Bh5 Rf7 Bg6 Rf5 Bf7 Kc7 d6+ Kb6 d7 Rcd5 Kh7 Ba4 Qa2 Kb5 d8Q Qd7 Qaa3 Kc4 g8Q Bb5 Qg6 Qaa7 Qaa6 Kb3 Qae6 Qa5 Kg8 Ka2 Qa6 Qa7 Qdb6 Qd7 Ng3 Qa7 Rh1 h2 Nh3 Qd7 Nf2 Re1 Rf1 h1Q Rg1 Qh6 Rh1 Rf1 Rh2 Qa7 Ngh1 Qh4 Bh6 Qhe7 Bg5 Qed7 Qa3+
2b2QQr/B4N1R/1N3K2/Pppp1B1b/Pr3k2/b1r4P/qQr5/3B3Q b - - 0 1 legal: proof: e4 h5 a4 e5 c4 f5 exf5 b5 g4 hxg4 d4 a5 b4 c6 bxa5 Rh6 c5 Rh8 Ra3 Nf6 Rd3 Nd5 Rd2 Nb6 cxb6 c5 d5 Nc6 Rd4 exd4 dxc6 Bd6 Qb3 Be7 Qd1 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4 g5 f4 d3 f6 d2 Kf5 g3 f7 g2 b7 g4 b8Q+ Kd5 c7 g3 Be2 Bg7 f8Q Bf6 Qg7 Rh4 Na3 Kd6 Nf3 g1R Ng5 g2 Nc4+ Kd5 Nf7 Bg5 Qb2 Qg8 Qf1 Bh6 Kf6 Ke4 f5 d1B Bf4 d5 Be5 Bc1 Nb6 Qg3 Bd6 Qb3 Bg3 Qa2 Qe1 Bb7 Qg8 Bc8 Bf4 Rf1 Be5 g1R Bg3 Bb7 c8B Rf2 Bb8 Rg3 Ba7 Rc3 Bd7 Kf4 Be6 Bb3 Bd1 Bc8 Ng5 Bc4 Qb3 Rh8 Kg7 Rg2 f6 Ba3 f7 Bd7 Kf6 Rgc2 f8Q Re8 Nf7 Bc8 Bf5 Re4 Qb2 Rd4 Rg1 Bf1 h3 Rb4 Rg7 Be2 Qh1 Bh5 Rh7
Rn1r1BQ1/P1pnK3/N1p2N2/1r2N3/3R4/P1R4p/1k2pP1Q/2bn1R1r b - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 b5 exf5 b4 c4 Ra7 c5 Ba6 c6 dxc6 a3 Bb7 Bc4 Ra8 Ba2 Bc8 g4 g5 h3 b3 f6 bxa2 Qb3 Qd4 Qd1 Bf5 gxf5 g4 Qc2 g3 Qd1 Qg4 hxg4 Kd8 Qe2 Kd7 Qd1 Ke8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 a6 e6 g5 g2 f7 h4 a7 h3 f6 Nd7 g6 Rh5 g7 Rf5 Nf3 g1R Nc3 Rh5 Na4 Ra5 Nc5 Rg6 Qg1 Rg3 Qh2 Ra6 Rf1 Ra5 Ne5 Rb5 Na6 Rd8 d3 Rg1 Bh6 Rh1 Rac1 a1N Rc3 Be7 f8R Nb8 f7 Nf6 g8N Nfd7 Nf6 Nc2+ Ke4 Ne3 d4 Nd1 d5 Rb1 Rg8 Rb5 Kf4 Bf8 Rg4 Bg7 Kg5 Bh8 f8R Bg7 Nd3+ e5 Rd4 Bh8 Kg6 Bg7 Kf7 Bh8 Qg1 e4 Ne5 e3 Qh2 e2 Kg6 Ke7 d6+ Ke6 Rg8 Nb2 Bf8 Nd1 Kh7 Bg7 Rh8 Kf5 Kg8 Bh6 Kf7 Bc1 Ke7 Rb4 Nh7 Rb5 Rd5 Nb6 d7 Ke4 Rdd3 Rc8 d8Q N6d7 Qe8 Rd8 Qf7 Ne3 Qg8 Nd1 Rg3 Kd4 Nf6 Bh6 Rc2 Be3 Rd2+ Kc3 Rd4 Kb2 Rf3 Bf4 Rc3 Bc1 Qd5 Rc8 Bg7 Rf8 Nb4 Rc8 Re8 Na6 Qg8 Ra8 Rb8 Ka1 Bf8 Kb2 Rb7 Rc8 Rb8 Rd8 Ra8 Nab8 Na6
2b3rr/b1Q3rQ/b7/4BnN1/PPb2K1Q/Bn4Q1/NBPRk2b/1n1q4 b - - 0 1 legal: proof: e4 c5 d4 f5 dxc5 b5 exf5 a5 g4 h5 gxh5 b4 a3 b3 Ra2 a4 Bc4 bxa2 b4 Rh7 Bb3 axb3 a4 Rh8 Ke2 Kf7 Kf3 Kf6 h4 Ke5 f6 a1R f7 g5 c6 d5 h6 b2 h7 d4 c7 g4+ Kg3 Ke4 f4 e5 h5 d3 h6 d2 f5 Ke3 f6 e4 Rh5 Nc6 Rh1 Nd4 Rh3 Bc5 f8Q Ba7 f7 Ne7 Qe8 Nb3 Nc3 b1B f8B Ba2 Rh2 Nf5+ Kg2 g3 Qf7 Ba6 c8Q Qd7 Kh3 g2 Nf3 g1B Kg4 Qd3 Rf2 Bh2 Ba3 Qd5 Qh1 Rg1+ Qg2 d1B Bg7 Qd3 Qcd7 Rag8 Qc7 Bc8 Kg5 Be2 Qgg3 Qd1 Qfe7 Bea6 Rd2 Nbd4 Qed7 B2c4 Na2 Nb3 Kg4 Rg2 Qe7 Rg1 Qh4 Rg2 Rd5 Ke2 Kf4 e3 Be5 Kf1 Rd7 e2 Ng5 e1N Rd2 Nf3 Beb2 Rg7 Be5 Re2 Beb2 Ree8 Be5 Rhg8 h8Q Ref8 h7 Rd8 Re2 Nfd2 Beb2 Nb1 Rd2 Rgd7 Qg7 Rf7 Qgh6 Rfg7 h8B Rdf8 Qh7 Re8 Rd8 Ke2 Rd7 Rg6 Bhd4 R6g7 Be5 Rh8 Rd6 Reg8 Rd2+
Qr1k2rb/1P1R1P2/Q2Q4/R1Kb4/4P1qn/rB6/3nQR1b/1B1N1rnr b - - 0 1 illegal: No possible last move, all moves rejected
5RQr/1q5k/2Q5/3bbB2/n1bP2NN/qP1rrrn1/QRQ1rN1P/K7 b - - 0 1 illegal: No possible last move
B1b1b3/RP1q2P1/b1R1bq1P/4B3/rrn3N1/1R3k1K/4Qb2/nrBQ2B1 b - - 0 1 illegal: No possible last move
6n1/4br1k/Qr2B1PN/br2Q3/B1Q1K3/3r1Bqn/2P1Q1P1/1bR1R1nq b - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 g5 hxg5 f5 d4 Nc6 Be3 Nb8 Nd2 Qa5 dxc5 Qc7 Bd4 exd4 e5 Qd8 Ne4 fxe4 Ke2 Kf7 f4 Kg6 b4 h5 b6 a5 c6 d5 b5 e3 Kd3 e2 c7 e1B e6 h4 b7 a4 e7 h3 e8B+ Kh7 f5 h2 b6 a3 f6 a2 f7 Be6 c8B Ra7 Be2 Nc6 b8Q Qd6 b7 Qg3+ Nf3 Ba5 Qe1 Be7 Qb4 Ne5+ Kd2 d3 Ke3 d4+ Ke4 d2 f8Q d1R Bh5 d3 Rc1 a1R Nd4 d2 Qf2 Nf3 Nf5 Ng1 Bb5 Ba2 Qe2 Bb1 Qbc4 Ra2 Qd6 Rb2 Bbe8 Rb5 b8Q Rab7 Qa3 R7b6 Bf3 Rf1 Qad6 d1N Nh6 Rf2 Bcg4 Rf1 Be6 Nf2+ Ke3 Nfh3 Ke4 Rd1 Qbc8 Rd3 Qa6 Kg7 B8d7 Rh7 Qe5+ Kg6 Bc6 Rf7 Be8 Kh7 Bc6 Rbb3 Ba4 R3b5 Bh5 Nf3 Rhe1 Nfg1 Bf3 h1Q g6+
kN3K2/2n2B1P/R1Q2BRr/5q2/3BQnR1/PrPbbq1r/8/Bqq1b3 b - - 0 1 illegal: No possible last move
1N3Rbq/B1N1r1nP/1Q5q/1Qr1RbP1/3K1k1q/Q1PNn1n1/4rn2/Q7 b - - 0 1 legal: proof: f4 b5 a4 c5 axb5 g5 fxg5 c4 e3 c3 Ke2 cxd2 g4 d5 g6 h5 g5 d4 Bh3 d3+ Kf1 Bg7 Bg4 Bd4 exd4 hxg4 Kf2 Kd7 Ke3 Kd6 b4 a5 h4 f5 h5 e5 h6 a4 b6 a3 c3 e4 g7 a2 b5 f4+ Kf2 g3+ Kf1 f3 b7 e3 h7 f2 d5 Ke5 b6 e2+ Kg2 e1R Kf3 f1N d6 g2 d7 Ra5 Rh4 Nh6 g8Q Nc6 b8N Nb4 b7 Re2 Qdb3 d1N Be3 d2 Qgf7 Re8 Nh3 g1Q Qb2 Nf2 Qf8 d1B Na3 Re7 Nb5 Nd5 Nf4 Nf5 Ba7 Nde3 Nc7 Bb3 Re1 Rc5 Qa1 Ng7 Rh2 Qe8 d8Q Ng3 Rh1 Qh2 Rhf1 Bf7 Nd3+ Kf5 Qd4 Qh6 Qb4 Qa4 Qb6 Qah4 Qb5 Rd7 Qd6 Bg8 Qda6 Rf7 Qa3 Bd7 Nba6 Be6 b8Q Re7 Q8b6 Bc8 Nb8 Bd7 Qd1 a1Q Qdc1 Qa2 Qa1 Qae6 Rb1 Qe5 Rb4 N7h5 Re4 Qh8 Re6 Ng7 Re4 Bde6 Re5+ Kg6 Qab3 Kh5 Qba3 Bf5 Qaa6 Bfe6 Qa6a5 Nfe4 Q5a3 Bc8 Rb1 Bce6 Rb4 Nf2 Rf4 Bd7 Rf8 Bf5 Rd5 Bg4+ Kf4 B4e6+ Ke5 Kg4 Kd4 Bf5 Nb2 Kf4 Re5 Be6 Na4 Bc4 Nb2 Bg8 Nd3+
3n2nq/QP2Rq1Q/KPk4R/6n1/N4Nb1/PQb1r1rb/1N4Br/1b4N1 b - - 0 1 illegal: No possible last move
1B4r1/1Rrb2n1/2Q2n2/1RR1b1rP/2bNBPB1/1P1qr1Rb/4bk2/2K1Q3 b - - 0 1 legal: proof: d4 a5 g4 c5 e4 cxd4 b3 h5 gxh5 f5 exf5 a4 Nd2 b5 Nc4 a3 Nb2 axb2 a4 Ra5 axb5 Ra8 Kd2 Kf7 f4 Kf6 h4 b1B c4 d5 b6 e5 c5 g5 b7 g4 c6 g3 h6 d3 h7 g2 h5 e4 c7 d4 Ne2 g1R Bb2 e3+ Kc1 Bd7 c8B Nc6 b8R Bd6 Qd2 Be5 Ra2 Rg5 Ba3 Ra7 Ra8 Nce7 Qa5 d2+ Kd1 Rc7 Rb8 Bd3 Rg1 Bc4 Kc2 d1B+ Kc1 d3 Nd4 e2 Bd6 e1R Rb7 Re4 Qe1 Bg4 Rg3 Bh3 Ra5 Re3 Rc5 d2+ Kd1 Bd3 Bg2 Bc4 Kc2 d1B+ Kc1 Bde2 Be4 Ng6 Rbb5 Nf8 Rb7 Ne6 Rcb5 Rc5 Bb8 Rc7 Rc5 Ng7 Rcb5 Ke7 f6+ Kd6 f7 Nf6 f8R Rg8 h8Q Rf3 Rb4 Kc5 Qh6 Re3 Re8 Bc6 Qg6 Qd6 Bg4 Bd7 Rc8 Qd5 Bc2 Qe4 Qe8 Qd3 R4b6 Kd5 Rb5+ Ke4 Qe6 Rf3 Qc6+ Ke3 Qa5 Kf2 Qa1 Qf5 Be4 Re3 Re8 Bd6 Ree5 Qh7 Rec5 Be5 Bd5 Qd3 Be4 Bf3 Qc3 Be2 Qe1+
nQ5n/1R4r1/PbRr1QBP/q2k1bK1/2PNRnQ1/4b3/1n2rN1b/1R6 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 a5 dxc5 Nf6 f4 Ng8 b4 axb4 f6 h6 g4 Nc6 g5 Ra4 f5 Ra8 fxg7 Nb8 g6 Ra4 Bf4 Ra8 Bg5 hxg5 Kd2 d5 Ke3 Kd7 h4 Kc6 a4 b5 f6 e5 a5 g4 h5 d4+ Ke4 b3 h6 g3 f7 g2 a6 b2 Kf3 b4 Rh2 d3 Ke3 e4 Kf4 e3 Rh4 e2 Qe1 b3 Qc3 e1B Nf3 g1B Nh2 d2 Ra4 d1N Bh3 Bd2+ Qe3 Ne7 g8Q Qa5 g7 Ng6+ Kg5 Ra7 Ng4 Nd7 Nc3 b1R Nf2 b2 Ra1 Bh2 Nb5 Nb6 Re4 Kd5 c6 Bc5 c7 Bf5 c8R Na8 Nd4 Bb6 Qf4 Be3 Rc6 Rb7 Qb8 Re8 f8R Nh8 g8Q+ Rf7 Qh7 Rg7+ Qg6 Rc1 Rff6 b1N Rf7 Nbc3 Rb1 Nb2 Rb7 Rd1 Bg4 Ne2 Bh5 Rc7 Qf6 Rg7+ Bg6 Rd2 Kh4 Rd8 Kh5 Rd6 Qg4 Nf4+ Kg5 Re2 c4+
NB3b1b/qn1n1R1b/B4Qk1/1K1n1qB1/R1Q3r1/P1bPQP2/nB6/1r6 b - - 0 1 legal: proof: c4 a5 f4 g5 g4 h5 b4 d5 cxd5 axb4 Nc3 f6 Ne4 Kf7 fxg5 Ke8 g6 f5 g5 f4 Nf2 f3 Ng4 hxg4 exf3 Ra3 Bg2 Ra7 Bf1 Ra8 Ke2 c5 Kd3 b5 h4 e5 h5 b3 a3 c4+ Kc3 e4 d6 g3 Kb4 c3 h6 g2 h7 c2 g7 Kf7 Kc5 b4 Qe1 e3 Be2 b2 Bb5 b1Q Be2 b3 Bb2 c1N Ba6 e2 Nh3 g1B+ Kb5 Ne7 d7 Qc7 d8B Rg8 h8B Qa7 Nf4 Na2 Rh4 Bd4 Ne6 Nd7 Nc7 Nd5 d3 Kg6 Qd2 e1B Qe3 Bec3 Rf4 Qf1 Re1 Qh3 Rf7 Qf5 Rg1 Bb7 Rg4 Rb8 Na8 Be5 Ra4 Bf6 Bc1 b2 Bc7 b1N Bg3 Nd2 Be5 Kh5 g6 Nb3 Bh2 Na5 Bd6 Re8 Bb8 Bc8 Bb2 Nb7 Bc1 Re4 Bd2 Rg4 Bc1 Bc5 Bb2 Rd8 g8Q Bf8 g7 Kg6 Bc1 B8e7 Qe8 Bf8 Q8e7 Bfd4 g8Q+ Bdg7 Qg1 Re8 Qd8 Re1 Qe3 Rh1 Bb2 Rb1 Qh4 Be7 Qd8 Bef8 Qc7 Bgd4 Bf6 Be5 Bd8 Bh8 Qc4 Qf6 Qcf4 Ne5 Qee1 Bf5 Qeh1 Nd7 Qc4 Be4 Qg1 Kf5 Qhf2 Kg5 Qb6 Bh7 Qge3+ Kg6 Qbd4 Qe5 Bg5 Qf5 Qf6+
bb3Kn1/BP2NR2/qr6/2q1n3/3k2n1/4nPPQ/Nbrb2BQ/5QQB b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 e4 fxe4 axb5 Ba6 Ra4 Bb7 Ra1 Bc8 h4 a5 b4 g5 hxg5 Nh6 b6 Nc6 b5 Ng8 Ra4 Nb8 Rb4 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 d3 b3 b7 b2 f3 e3 d6 e2 g6 e1N g7 h4 d7 h3 Ke6 h2 Kf7 e5 b6 e4 Nh3 e3 Nc3 b1Q Nf4 e2 Nfd5 Bd6 Na2 Qb5 Ne7 Nc6 b8Q Ra6 d4+ Kc4 d5 Qc5 g3 Ng2 Qa7 Ne3 Bg2 Bb7 Qf1 Qc8 d8Q Ne5+ Kf8 Ba8 b7 Kd4 Ba3 Qe6 Qd7 e1B Qb6 Qh6 Qh3 Bd2 Bb4 c6 Ba5 Bc7 d6 Bb8 d7 Qe6 Qa7 Rb6 d8Q+ Qed6 Qdc8 Qe6 Qc7 Qec4 Qcc8 Qa6 Qh5 Rh6 Qch3 Rb2 Qb6 Rc2 Qbb1 Rd6 Bb6 Rg6 Ba7 Re6 Rg1 h1N Qbe1 Nf2 Bh1 Nfg4 Rg2 Qcb6 Rh2 c5 Qef2 c4 Q2g1 c3 Qh8 N8h6 g8B Qc5 Qh7 Rg6 Bc4 Ng8 Re2 Rb6 Qhh2 Rcb2 Q7h3 c2 Re1 c1B Rd1 R2b4 Be6 Bb2 Rc1 Qcb5 Rc7 Qc5 Qh8 Bbc3 Rc6 N4f6 Bh3 Bb2 B3g2 Nfg4 Q8h3 Rc4 Rf6 Rc2 Rf7
qknrNqBB/qq1nr3/qQ1QQ3/4N2q/6PQ/1P3b1P/2B2R1q/1K6 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 h5 a4 hxg4 axb5 Be6 d6 Kd7 d5 Ke8 Ra4 Bc8 Ra6 g5 Qd4 g3 Ra2 g2 Kd2 g4 Kd1 g3 Ra4 Bg7 Nf3 g1Q Ke1 g2 Qd1 Bh6 Rb4 Bf4 Rd4 Bg3 fxg3 exd4 Kd2 Kd7 Kc2 f5 e4 a5 b6 c5 e5 f4 h3 d3+ Kd2 c4 b3 a4 b7 a3 Qe1 a2 Na3 a1Q Nb5 Rh7 Bb2 Qga7 Rh2 g1Q Rf2 Qf8 Nc7 Ne7 Ne8 Qh2 e6+ Kd8 Qe4 Nd7 Ne5 f3 b8Q Q1a4 Kc1 d2+ Kb1 c3 Qbb4 Bb7 Qb6+ Kc8 Bd3 Kb8 Bc2 Nc8 e7 Rg7 Qg4 Qa3 Qe6 d1Q+ Bc1 Qe2 Bb2 Qea6 g4 Qf5 Nf6 Qh5 e8B Re7 Bf7 Q3a5 Bg8 Qa4 Re2 f2 Ne8 f1Q+ Bc1 Q4b5 Rf2 Qfg2 Bg5 Qe4 Bf6 Qf3 Bh8 Qf8 Qc5 Bc6 Qd4 Qbb7 Qb6 Bb5 Bg6 Be2 Bc2 Nc5 d7 Bf3 d8Q Nd7 d6 Qfh6 Bg6 Qf8 B6h7 c2+ Kb2 Qa3+ Kc3 c1Q+ Kd3 Rg7 Qef6 Qc4+ Kd2 Nc5 d7 Q7a4 Qb5 Ra6 Qe6 Rd6+ Bd3 Qa1 Qbb6 Qa8 Qh4 Q1a7 d8Q Qca6 Kc2 Re7 Kb1 Rd4 Qdd7 Rd5 Qdc6 Rd8 Bc2 Nd7 Qcd6+
1Q2NB1R/3bQnB1/3B4/1b1bnr2/QP1n2qb/P2k2bB/1KR2P2/5bq1 b - - 0 1 legal: proof: h4 a5 b4 d5 e4 g5 c3 gxh4 Na3 b5 Nc4 f5 exf5 dxc4 bxa5 b4 Qf3 b3 Qd1 Ra7 Rh2 Rb7 Rh1 Rb4 cxb4 Bd7 Qc2 Be6 Qd1 Bc8 g4 Kf7 d4 Kf6 Kd2 h5 Kc3 c5 a3 e5 d5 h3 d6 h4 a6 h2 d7 b2 a7 b1B a8Q e4 g5+ Ke5 f6 e3 g6 e2 f7 e1N g7 h3 Ne2 Qg5 d8B Qg4 Ra2 Nh6 g8Q Nc6 Bh4 Ke4 Kb2 c3+ Ka1 c4 Be3 c2 Qd2 c1B Qc3 Bd3 Rg1 h1B Rb2 h2 Qg5 Bd7 Rb3 Bd6 f8B Bg3 Bec5 Bg2 Qgg7 h1B Rb2 Nf3 Bcd6 Bg5 Nd4 Nf7 Nb5 N3e5 Rc2 Rh5 Qb3 c3 Qb8 Nd4 Nc7 B3b5 Qa4 Be7 Qh7+ Rf5 Bf6 Bh3 B6g7 Beh4 Ne8 B3g2 Bc4 Bf1 Be6 Kd3 Kb1 Bd5 Rh1 Bd8 Qh4 Bf6 Qg5 Be7 Rh8 Bf6 Re2 c2+ Kb2 Bd8 Qc1 Bdh4 Qg5 Bh1 Qe7 c1Q+ Ka2 Qd1 Kb2 Bd5 Rc2 Bh3 Rc5 Qg1 Rc4 Bf1 Rc2 Ba2 Bd5 Bb3 Bg2 Bd5 Bh3
6nr/1qbkP1QR/q1Q1NPq1/Rn3n2/rN1P4/1K1n4/r3Nr2/Q2Q2B1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g4 f5 Nf3 h5 Ng1 f3 Bg2 f4 Bh3 Bf5 gxf5 Bb4 Bg4 hxg4 Kf2 Be7 Ke1 Bf8 b4 g5 h4 c5 d4 a5 Kd2 c4 Kc3 a4 e4 g3 e5 f2 d6 f1N e6 g2 h5 a3 f6 g4 b6 f3 h6 a2 h7 g3 b7 f2 b5 Na6 b8N Qe7 b6 Nc7 b7 Ne3 Nh3 g1Q Nc6 f1Q Nb4 g2 Ng5 Nf5 Be3 Ra4 d7+ Kd8 Kb2 c3+ Kb3 c2 Nc3 Qa6 Ne2 Nb5 Rh3 Qf7 Rh4 Qh1 Bg1 Bd6 Rh5 Qg6 e7+ Kc7 Rh6 Be5 Ne6+ Kd6 Kc4 c1N b8Q+ Nc7+ Kc3 Nd3 Qb7 Nb5+ Kb3 Bg3 Rc1 a1R Rc5 R1a2 Rh4 Na7 Ra5 Nb5 Qc8 Bf4 Qc3 Be5 Qca1 Bf4 Nd5 Kc6 d8Q Bc7 Qa8+ Kd6 Nb4 Kd7 Bh2 g1R Qc6+ Kc8 Rh3 Rg2 Bg1 Rf2 Qd6 Qhb7 Qc6 Ngh6 Rh2 Rd8 h8Q Ng8 Qg7 Re8 Qcc1 Kd7 Rh5 Ngh6 Qc4 Rh8 Rh3 Ng8 Rh7 Qb8 Qcc1 Qbb7 Qc6+
1rR1k1r1/7b/QrbK4/N2bB2P/1Qq1RQ2/2R4b/PPNQ2nr/b2b4 b - - 0 1 illegal: Other
2kRN1R1/n1Pn1nNr/5P2/1Rr3Bb/3nPb2/R2r1r2/Q4QnQ/1Kb5 b - - 0 1 illegal: No possible last move, all moves rejected
1Bn1brkR/QK6/1P2N3/4rr2/1b2n3/Q1P1r1P1/Bbn2Q1n/Q1BN1b2 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 g4 Nh6 f4 Na6 b4 Ng8 f5 Nb8 Ra3 Qc7 Rf3 Qg3+ hxg3 Bb7 Rf2 Bc8 Rf4 gxf4 Kd2 Kf7 Kd3 h5 Ke4 a5 Kd5 e5 b6 f3 b7 d3 b5 h4 b6 a4 c3 h3 g5 d2 Be2 f2 Na3 f1N Ba6 e4 Qe1 d1N Qf2 h2 Nf3 e3 Ne1 e2 Nb5 a3 Qg1 a2 Nc7 a1B Qf2 Ne7+ Kd6 Nbc6 b8Q Nb4 g6+ Kg8 g7 Bb2 Qg1 Nf2 Qg2 Rh5 Qa7 Nc2 Nd3 e1R Ne6 Re5 Kc7 d5 Bc4 d4 Ba2 Ne4 Nf2 d3 Nd1 d2 Qf2 Bd7 Kb7 Be8 f7+ Kh7 f6 Nc8 Bc4 Rhf5 Ba2 Bb4 f8B Kg8 f7+ Kh7 Ne3 d1R Bd6 Rd3 Nd1 Re3 f8Q Rb8+ Kc7 Ra8 Qe7 Kg8 Kb7 Nfd2 Bb8 Nf3 Rg1 h1B Re1 Bg2 Rh1 Ba5 Qa3 Bf1 Rh6 Nh2 Rh4 Bb4 Rh8+ Kf7 g8Q+ Ke7 Rh4 Kf6 Qg4 Kf7 Qge2 Kg8 Qd3 Ne1 Qb1 Nc2 Qa1 Rf8 Q7a4 Raa5 Rh5 Rab5 Qa7 Ref5 Rh6 Rbe5 Rh8+
BKB1q3/2Q1b2b/R4q1n/PBQ2r2/r1p1BPn1/1R5Q/1bP4k/2nN1q2 b - - 0 1 legal: proof: d4 a5 b4 f5 bxa5 g5 e4 e5 dxe5 g4 exf5 g3 f3 h5 Be3 Rh6 Bf2 gxf2+ Kd2 Rh7 g4 Rh8 g5 Be7 Na3 Rh7 Nc4 Bf8 Ne3 Rh8 Ng4 hxg4 Kc3 Kf7 Kc4 d5+ Kb5 c5 h4 c4 a4 d4 f4 g3 h5 g2 h6 d3 f6 Kg6 e6 Kf5 g6 d2 h7 Qe8+ Kb6 Nh6 Kc7 b5 e7 b4 a6 b3 g7 b2 g8B b1Q a7 Qb2 f7 Nc6 Rh3 Qf6 Rb3 Nb4 Ne2 Kg4 Nc3+ Kg3 Bd3 f1Q Be4 g1B Qe2 Bb7 Nd1+ Nd3 Qh5 Bg7 f8Q Bc5 Qe5 Kh2 Be6 Nc1 Bc8 Bb4 Qf7 Rf8 h8Q Bd5 Qh7 Bh8 Qfg7 Bg8 Qc5 Rf7 Qhf5 Bh7 Qd7 Ba3 Qgg4 Bb2 Kb7 Bg7 Qdc7 Bf8 Qe6 Qd4 Qg4 Rf5 Raa3 Qf6 Ra2 Qd8 e8B Be7 Bb5 Qe8 Ne3 d1N Qh3+ Kg1 Raa3 Nf2 Nd1 Qe5 Rd3 Qg7 Rd6 Qd4 Rb3 Qc3 Ra6 Qf6 Qc3 Kh2 a5 Nfg4 Bcd7 Rd8 Bc8 Rd3 a8B Re3 Kb8 Re1 Qf3 Re3 Rb4 Ra3 Rb3 Ra4 Qh3+
R5BK/4N2b/r2b1p1r/R4qk1/2P2R1B/QBPq1n2/Q2P1qn1/r1n1B3 b - - 0 1 legal: proof: f4 b5 g4 e5 a4 h5 gxh5 exf4 axb5 d5 c3 d4 Na3 c5 b3 d3 Nc2 c4 bxc4 dxc2 Kf2 Ke7 Kf3 Kf6 Ke4 g5 h4 a5 h6 f3 b6 g4 h5 a4 h7 g3 b7 g2 h6 a3 Rh4 f2 Rf4+ Kg5 Ke5 a2 e4 Qd3 Be2 f1N Nf3+ Kg6 Nd4 g1R Nc6 Bf5 Ne7+ Kg5 Ba3 c1Q Qb3 Bd7 Bd6 Nh2 Qa3 Qf1 Bd1 Ra7 Bb3 Na6 b8B Rh1 Bc5 Bg4 Bf2 Bf5 Be1 Qf2 Bd6 Nf6 Bc7 Rg8 h8Q Nh5 h7 Rg6 Qg7 Ra8 h8R Nb4 Qg8 Ra6 Bd6 Bh6 Qa8 Bf8 Bb8 Rgb6 Qa7 Bh7 Bd6 Bh6 Ra8 f6+ Ke6 Bf8 Kf7 Nf3 e5 Ra5 e6 Rba6 Bc7 Qf5 Be5 Nd3 Bc7 Nc1 Bb8 Bg6+ Kg8 Bh7+ Kh8 Qd3 Nd5 Bc5 e7 Bd6 e8B Rh3 Bf7 Rh4 Re4 Nf4 Bg8 Ng2 Rf4 Rh6 Ne7 Ra4 Rb1 a1Q Bc7 Qa2 Ra1 Qab1 Qa2 Qg6 Qc5+ Qbf5 Qca3 Bc5 Re4 R4a5 Bg3 Bd6 Rd4 Qd3 Rf4 Qgf5 Q3b2 Qb1 Qa4 Qbd3 Qb4 Ra2 Qb1 Rc2 Ra5 Ra2 Qa3 Ra1 Qbb2 Qdd4 Qba2 Qd3 Bh4+
2b1b3/qrPr4/1nKB1q2/1nBN1Q2/qBp2P1P/3N4/2Q4k/NNbnR3 b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 h5 exf5 c5 g4 Qc7 gxh5 Qd8 c4 Kf7 b4 Ke8 b6 Bb7 b5 Bc8 Ra4 d5 Rb4 cxb4 c5 Nh6 Be2 Ng8 Bc4 dxc4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 f4+ Kh4 d4 e5 h6 g5 h7 a5 c6 g4 f6 b3 d5 b2 b7 a4 c7 g3 d6 a3 Kd5 g2 d7 e4 b6 e3 h3 Kg3 f7 a2 h4 a1Q Nh3 g1Q Bd2 e2 Nf2 e1N Nd3 Ba3 f8Q Qf6 d8B Nd7 b8B Nc2 b7 Qa7 Bb4 Nh6 Re1 Kh2 Bde7 Nd4 Bed6 Nb5 Kc6 Ng4 Qc2+ Nf2 Qf7 Rg8 h8N Rg7 Ng6 Nb6 Ne7 Qa4 Qd5 Ra7 Qf5 Qa2 Nd5 Rd7 Qc3 Nd1 Qb3 Ra6 Ba7 Qa1 b8N Ra5 Nbc3 b1B Na6 Bc1 Nac5 Bc2 Nb1 Qad4 Bb8 Ra7 Qb2 Qf2 Nb3 Rb7 Ba7 Q2d4 Na1 Qg1 Nf2 Bd3 Qa2 Be2 Qb3 Bh5 Nd3 Be8 Qc3 Na8 Bd4 Nb6 Bdc5 Qf2 Qb3 Qfa2 Qc3 Qa7 Qb3 Q2a4 Qc2+
1r2NQ2/4bqnR/3r2bP/4BQQ1/KP3P2/b1B3R1/1rkp1b1B/Q1b2n2 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 exf5 g4 dxc5 Ba6 Qf3 Bb7 Qd1 Bc8 f4 h5 Nd2 Nc6 Ndf3 Nb8 g3 Nc6 Bh3 gxf3 g4 Nb8 g5 Ba6 Bg4 hxg4 Kd2 Bb7 Ke1 Bc8 Kd2 Kf7 Kc3 a5 Kb3 d5 c4 e5 h4 f2 f6 Kg6 b6 Kf5 h5 Ke4 b7 f1R g6 d4 f7 g3 c6 g2 c5 a4+ Kb4 d3 c7 d2 b3 Kd3 g7 e4 h6 a3 Nf3 g1B Ng5 e3 Bb2 e2 Nf3 e1B Bf6 a2 Bc3 Na6+ Ka4 Bgf2 b8B Qe8+ c6 Bf5 c8Q Nf6 g8Q Nh5 Nh2 Ng3 Rg1 Bg6 Ng4 Ba3 f8B Qf7 Bbe5 Rb8 b4 Nc7 Nf6 Ne6 c7 Ng7 Bc5 Rh7 Rc1 a1B Qcf8 B1b2 c8Q Rh8 Rc2 Bc1 Ne8 Rb6 Qcg4 Rd6 Qh7 Rg8 Qg5 Rh8 Rg2 Rg1 Be3 Nf1 Ra2 Bh4 Rg3 Bf2 Qe1 Bcb2 Qa1 Kc2 Qh5 Be7 Qg5 Nh2 Bb6 Rb1 Bc5 Nf1 Ba7 Be1 Bg1 Bf2 Bh2 Kd1 Rg2 Bc1 Rc2 Rb2 Rg3 Bh5 Qhf5 Bg6 Bcd4 Rg8 Rc7 Rh8 Bc3 Rg8 Qfg4+ Kc2 Q4f5+ Rd3 Ka5 Qf6 Qh5 Ne6 Nd6 Bd8 Ka4 Qg7 Rf7 Be7 Qc8 Qf8 Rh7 Ng7 Qhg5 Qf7 Qfd7 Rd8 Qe8 Rd5 Qf8 Re8 Qcg4 Rb8 Ne8 Rd6 Q4f5+
nkq2r2/b6n/N1P1NP2/1P1n2Q1/1bRBQ1n1/Q1N1b1p1/3N1r2/1K3B1n b - - 0 1 legal: proof: f4 c5 e4 f5 exf5 h5 a4 b5 axb5 Qb6 g4 Qd8 b4 Nf6 d4 cxd4 g5 Nd5 f6 Kf7 Ra3 Ke6 f5+ Kd6 Rg3 Ne3 Rg2 Ng4 Rg3 Bb7 Rg2 Nh6 Rg4 Bd5 g6 Bf7 gxf7 hxg4 Be3 Ng8 Bg5 Nc6 Bc1 Nb8 Kd2 Kc7 c4 d5 Kc2 e5 h4 a5 c5 g5 h5 a4 h6 a3 c6 d3+ Kd2 e4 h7 a2 Ba3 a1N Kc1 g3 Rh6 g4 Qf3 d2+ Kb2 d1N+ Ka2 e3 Bd3 e2 Nd2 e1B Rh1 g2 Qh3 d4 Ndf3 g3 Qh2 Bc5 f8N Nf2 f7 Nc2 Nd2 Nd7 b6+ Kb8 b5 Ngf6 b7 Ba7 Bf1 d3 Kb1 Qc8 Qh4 Ne3 Ne6 Nb6 f8Q Ned5 Qe4 N2g4 Ne2 g1B Bb2 Be3 Qa3 Rf8 h8Q Nh7 Qg7 Rf7 Nc3 Rf8 Nc4 d2 f6 d1N Qg5 Ndf2 Rh4 Nh1 Nd2 Qd8 Na4 Qd7 Bd4 Qc8 Nc4 Bb4 Nc3 Nc7 Nd2 Nbd5 Qb2 Bac5 Qc1 Ra2 Qa3 Na8 Qb2 Ka7 b8N Bb6 Na6 B6c5 Nac7 Kb8 Qa3 Rc2 Nf3 Re2 Nd2 Rf2 Na6+ Ka7 Qc2 Nh2 Be5 Bcd4 Rf4 Ng4 Re4 Bb6 Rc4 Bbd4 Qe4 Bdc5 Nac7+ Kb8 Bd4 Ba7 Na6+
3k2KR/1PRB1B2/bq5P/Q1Qb1rP1/1b3b1r/nR1n1b2/2RNnpB1/8 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 d4 c5 dxc5 Bg7 Bf4 Bf8 Nd2 b4 Ne4 b3 axb3 h6 b4 gxf4 b5 h5 g5 Qe7 Nf2 Qd8 Ng4 hxg4 Kd2 d5 Kd3 f5 Kd4 a5 b4 a4 h4 g3 c4 f3 e4 g2 h5 a3 e6 a2 Ke5 f4 c6 d4 c7 f2 b6 d3 b7 d2 b5 f3 c5 Qd3 b6 Qc4 c6 Bb4 e7 Qd3 Qe1 d1B Rc1 a1N Rc2 Nd7+ Ke6 Ngf6 b8R Nd5 e5 Qd4 b7 Qe3 Rh3 Qb6 h6 Ra4 Qd2 Nc3 Qd5 Be2 Qa5 Nc5+ Kf6 Nd3 Kg7 Rh7+ Kg8 Rf7 Rg3 Rf5 Ra8 Qd4 Rb8 Qd8 Ra8 Bd7 c8R Bd1 c7 Bc6 Rh3 Ne2 Rab8 Kd7+ e8B+ Ke7 e6 Bd5 Rg3 Qd6 Bf7 Qb6 Nh3 g1B Bg2 f1B Nf2 Bh2 Ne4 f2 Nd2 Ndc1 Rgc3 Nd3 Rb3 Bf4 Ra8 Ng3 Rab8 B1f3 Ra8 Ne2 Rab8 Kd6 e7 Kd7 e8B+ Ke7 Rcb2 Nc2 Bd7 Na3 Rc2 Nc4 Rd8 Na3 c8Q Bc3 Qc7 Rc4 Rdc8 Bb4 Qc6 Re4 Rc7 Rd4 Bc8+ Kd8 Qcb5 Bg3 Ra8 Rh4 Qc5 Bd6 Ra6 Bf4 Bd7 Qb5 Rg6 Qc6 Rg7 Qb6 Rh7 Ng1 Rc4 Ne1 Rcc3 Ba6 Rc4 Ne2 Rh8 Nd3 Rc2
Rb2RN2/5k2/4r1N1/nR4PQ/B1p1Pbr1/2b3P1/1QqR2K1/b1nQr1n1 b - - 0 1 legal: proof: h4 g5 hxg5 e5 a4 b5 c4 bxa4 b4 d6 f4 Ba6 fxe5 Nf6 Bb2 Ke7 Bd4 Ne8 Bc5 Nf6 b5 Ng8 b6 Bb5 cxb5 dxc5 Rh5 Kd7 Rh1 Ke8 Kf2 h5 e4 a5 d4 f5 b7 h4 g3 h3 b6 f4 e6 c4 d5 c5 d6 f3 e7 h2 d7+ Kf7 e8R a3 Nd2 c3 Bh3 a4 Qc2 a2 Bf1 a3 Be2 c4 Nb1 Nf6 Qa4 c2 Nh3 c1B Rg1 h1R Nd2 Ra6 Nf4 Ng4+ Kf1 f2 Nf3 R8h4 Nd2 Nc6 b8Q Nh2+ Kg2 f1N b7 Nf3 Qb3 Bd6 Bd1 Na5 Qb2 Rg4 Nb3 N1d2 Nc5 Ndb3 Ng6 Bcf4 Ne6 Nc1 Nef8 Qb6 d8Q Qb3 Rf1 Qc2+ Rf2 Re1 Rd2 Ng1 Qa7 Bc7 b8R Re6 Qad4 Bcd6 Rb5 Bc7 Qh8 Bb8 Rb1 a1B Qh5 a2 Qd3 Qc3 Ba4 Qc2 Qf3 Be5 Qd1 Bb8 Qb3 Bc3 Qb2 Bbd6 Rbb8 a1B Ra8 Bc7 Qa2 B7e5 Rb5 Bb8 Qb2
3nK2R/b1R2rB1/P1R1PQ1b/3kq3/P1r2n2/1R5b/NNpN1n2/rQ4b1 b - - 0 1 legal: proof: f4 e5 g4 a5 c4 f5 b4 d5 cxd5 h6 bxa5 h5 Bh3 exf4 gxf5 Ba3 Bg4 hxg4 Nc3 Bb4 Nb1 Bf8 Kf2 Kf7 h4 g5 a4 b5 d4 c5 e4 c4 d6 b4 h5 f3 Kg3 c3 f6 Ke6 d7 f2 d5+ Kd6 h6 f1R h7 b3 f7 c2 e5+ Kc5 a6 b2 e6 Bh6 f8N Nf6 d6 Qa5 d8R Nd5 d7 Nf4 Nc3 b1N Ng6 Nd2 Bb2 Bb7 Nf3 Nc6 Qb1 Ra7 Na2 Kd5 Rc8 Nd8 Rc6 Qb5 Nge5 Ne4+ Kh2 Nf2 Kg3 Qe2 Nd3 Qe5 Nd2 Rf8 h8Q Rf7 Qf6 Ba8 Bd4 Rc7 Nb2 Bb7 Rb6 Rc4 Rc6 Bf8 Rh8 Bh6 Nc1 Re1 Ra3 Rd1 Na2 Rf1 Qe1 Rh1 Rb3 Ba8 Qe2 Ra1 Qf1 Bb7 Qb1 Ba8 Kh2 g3+ Kg1 Nd1 Bc3 g4 Bd4 g2 Qg6 Qd6 Kh2 g1B+ Kg3 Nb7 Bg7 Qe5 Kh4 Ba7 Rc7 g3 Qg5 g2 Qf5 g1B d8R+ Nd6 Rdb8 Kd4 R8b6 Bg2 Rbc6 Kd5 Qg6 Nb7 Qf6 Rd7 Kg4 Nd8 Kh4 Qe3 Kg4 Nf2+ Kf5 Bf1 Qc3 Bh3+ Kf6 Rd6 Ke7 Rd7+ Ke8 Rf7 Qf6 Qe4 Rbb6 Qe5 Rb3
5b2/p2Q1Q1r/knrPr3/q1NnP1b1/P1r2N1N/B1N4B/K2Q4/R5bn b - - 0 1 legal: proof: f4 d5 b4 e5 c4 exf4 cxd5 c5 bxc5 f3 g3 Ke7 g4 Ke8 a4 f5 Ra3 h5 Re3+ Be6 Re5 f4 Rg5 Bf5 gxf5 Nd7 Rg2 Nb8 Rg4 hxg4 h4 Kd7 d4 Kc8 Kd2 g5 Kc2 b5 Kb2 Kb7 e4 f2 e5 b4 f6 f3 d6 b3 d7 g3 f7 g2 d5 g4 h5 g3 h6 Qa5 d8Q Nd7 h7 Nb6 d6 Ne7 Rh3 Ned5 Qf6 Re8 Qd2 Re6 Ne2 g1B c6+ Ka6 c7 g2 Nbc3 Bh2 Rg3 g1B Bh3 f1R Nf4 f2 Re3 Bg3 Re1 Bh4 Kb1 b2 Ka2 b1R Ba3 Rb3 Ra1 Rc1 Qe7 f1N c8N Rh6 Qd7 Rb4 Ne7 Bf6 Neg6 Rc4 Nh4 Ng3 Nd3 Nh1 Nf4 B8g7 f8N Bg5 N8e6 Re8 h8Q Rh7 Qg8 Bf8 Qgf7 Rc6 Nb5 R1c4 Nc3 Re7 Nd3 Re8 Nef4 Re6 Nc5+
1N2k1K1/Qb4b1/1B1R1r2/Q6b/1b1Pn3/PN1PRpRN/2bN1q2/2n3rq b - - 0 1 legal: proof: g4 a5 f4 e5 fxe5 c5 b4 axb4 c3 h5 gxh5 d5 Bh3 d4 cxd4 c4 Bf5 Qg5 Bc2 Qd8 Bb3 cxb3 Kf2 b5 Ke3 g5 Ke4 f6 h4 b2 e6 b3 Kf5 b4 Kg6 g4 h6 g3 h7 g2 a3 f5 h5 f4 h6 f3 e7 Qa5 Nh3 g1B Qe1 Be3 Rg1 Nd7 Rg3 Bg5 e4 Ndf6 e5 Bh4 d3 Bg7 Bg5 Ra6 Nd2 b1B Ra2 b2 Nb3 Bc2 Bd2 Kd7 Kf7 b1Q e8N Nh5 Nc7 Nf4 e6+ Kd8 Bc3 Bb7 e7+ Kd7 e8N Ne2 Rb2 Be7 Nd6 Nc1 Ne4 Nf6 Ned2 Rg8 h8Q Ne4 h7 Qg5 Ra2 Qh4 Rb2 Re6 Na6 Bd6 Nb8+ Kd8 Na5 b3 Ra2 b2 Nab3 Bdf8 Ba5+ Rb6 Ra1 Bb4 Ra2 Qh6 Ra1 Qe3 Ra2 Qf2 Ra1 Bf6 Qg7 Be5 h8R Bf6 Kg6 Ke8 Kh7 Rd6 Qc7 Bg7 Bb6 Rf6 Ra2 Qa1 Qc5 b1B Qa5 Bh6 Qa7 Bhf8 Rb2 Ba2 Rb1 Rg4 Rg8 Rg5 Rg6 Bg7 Rb2 Rf4 Rd6 Rf6 Qe3 Rgg6 Qg5 Qb1 Qga5 Rg4 Na1 Bf7 Nab3 Bh5 Kg8 Rgg6 Rg1 Rg3 Re1 Rg1 Re3 Ne2 Ra2 Qbf1 Rb2 Q1g2 Rb1 Qh1 Re1 Nc1 R1e2 Qg3 Rg2 Qf2 Rg3
1q2R1r1/r1Bq2r1/3bQB1K/5Q1Q/b1qPR1Q1/P1k1r3/p1P1nRN1/4n3 b - - 0 1 illegal: No proof kernel
1q3r1Q/n6B/1Q1R1rQ1/brrp4/1RR1n2P/2P1KN1P/1nb3qk/1N3Q2 b - - 0 1 legal: proof: b4 b5 a4 f5 e4 a5 exf5 h5 d4 c5 g3 h4 gxh4 cxd4 Bd2 Rh7 axb5 Bb7 b6 Bc8 b5 Rh8 Bb4 axb4 Ke2 Kf7 f4 Kf6 b7 d5 h3 e5 b6 g5 c3 e4 Ra4 e3 Ra6 d3+ Kf3 b3 Nd2 b2 Qa1 b1R Be2 g4+ Kg3 Bb4 Ra7 Ba5 Ra6 Nc6 b8Q Na7 Ngf3 Rb5 Nb1 d2 Re1 d1N Bd3 e2 b7+ Qb6 Qc7 Nb2 b8R Bd7 Rf1 e1R Qa4 Bc8 Qc2 Re6 Qc6 Rc5 Kf2 Qd8 Rb4 Rb8 Rc4 Rbb5 Qb6 Rec6 Rb4 g3+ Ke3 g2 Be4 g1Q+ Rf2 Kf7 f6 Ke6 f7 Qg2 f8Q Nf6 Bh7 Ne4 Rd2 Qd6 Rdd4 Qb8 Rdc4 Rd6 Qg7 Rf8 Qh8 Rdc6 f5+ Kd6 f6 Bf5 Ne1 Ke5 f7+ Rf6 Qd3 Bg6 Nf3+ Kf5 Kd4 Kf4 Qc2 Kg3 Ke3 Rd8 f8Q Re8 Qf7 Rf8 Qd1 Nf2 Qf1 Bc2 Qd8 Ne4 Rd6 Re8 Qb6 Rf8 Ng5 Kh2 Qfg7 R8f7 Qg6 Rf8 Nf3+
1n2RNBn/2BQrB2/3N2pr/1K6/6r1/2NP3b/1bQPqnP1/k1r3qN b - - 0 1 legal: proof: f4 e5 a4 b5 axb5 d5 Ra3 d4 Ra1 d3 cxd3 Qd5 Na3 Qd7 Nb1 Qd8 h4 g5 hxg5 exf4 b4 Nc6 g6 Bd7 g7 Bc8 Ra6 Nb8 Rg6 fxg6 e4 Kd7 Ke2 Kd6 b6 c5 b7 h5 b5 a5 b6 a4 Rh3 h4 Bb2 f3+ Ke3 c4 Kd4 a3 Qc2 f2 Qc1 c3 Kc4 a2 Qd1 a1Q Kb5 c2 Re3 c1R Ne2 h3 Nbc3 h2 Qc2 h1N Ng3 Nh6 g8B Bg7 Be2 f1R Bf3 Nf2 Nh1 Qe7 Bg4 Rg1 B4e6 Rge1 Bef7 Ra4 Re2 Bh3 e5+ Kd7 e6+ Kd6 Re5 Rg4 Re4 Qh4 e7 Qh5+ Bd5 Nf7 e8N+ Kd7 Nd6 Rh6 Re2 Nh8 Re8 Re7 Ba3 Bf6 Bb4 Qe5 Ba5 Qe2 Bdf7 Bd4 Nb1 Bb2 Nc3 Na6 b8Q Qb1 Qa8 Nb8 b7 Qa1 Bc7 Qb1 Ka5 Kc6 Qa6+ Kc5 Qa8 Nc6+ Ka6 Kb4 b8N Ka3 Nd7 Nb8+ Ka5 Qa1 Qb7 Qb1 Kb5 Qa1 Nd5 Ka2 Nf8 Qb1 Nc3+ Ka1 Qb3 Qc2 Qc8 Qcd1 Qc2 Qg1 Qd7
2n2Rr1/Nn2QK1N/Qr2PQ1r/r5q1/1nBqPP1p/1b4b1/1QB5/5kN1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 dxe5 c5 h4 Ba6 hxg5 Bc8 b4 f5 e4 f4 b6 Ba6 b5 Bb7 Ra4 Bc8 Be3 fxe3 Rb4 cxb4 Ke2 Ke7 Kd3 Ke6 Kc4 a5 g4 h5 f4 e2 g6 e1N g7 b3 b7 a4 g5 b2 b6 a3 g6 a2 Qd4 a1R Ne2 Ne7 g8N Nd3 g7 Nbc6 b8Q Ncb4 b7 Nc5 Nbc3 b1R Qc7 R1a5 b8Q Nb7 Nb5 Rh6 Na7 h4 Rg1 d6 Nf6 Bd7 c3 Nc8 Nh7 Qg5 g8B+ Ke7 Qdb6 d5+ Kd4 Bg7 c4 Bf6 c5 Bh8 Qcc6 Be6 Qa6 Bf7 Qf6+ Kd7 Ke3 d4+ Kf3 Ba2 Bb3 d3 Bc2 d2 Rg3 d1Q c6+ Ke8 c7 Kd7 Rg4 Bb3 Rg2 Qd4 Rg1 Nc6 e6+ Kd6 Rg2 Kc5 Qe7+ Ncd6 c8Q Bg7 Qcd8 Nb4 Rg4 Be5 Qf6 Nc8 Qde7+ Bd6 Nb5 Kc4 Na7+ Qb5 Rg8 Bc5 Kg4 Rb2 Bd1 Kd3 Kf5 Kd2 Bc2 Ke1 Rf8 Rb1 Ng3 Kf2 Bfd3 Kg1 Ne2+ Kf1 Qbe5 Rb2 Qg6 Rb1 Kf6 Bb6 Kg7 Qbd5 Q5f6 Qg5 Bc4 Qd2 Rh8 Nc6 Rd8 Ba2 Qe8 Ncd6 Qc3 Bf2 Kg8 Rb6 Qgg7 Nb4 Qb2 Qd4 Qe7 Bb3 Kf8 Bg3 Qgf6 Qgc5 Re8 Rd8 Kg8 Nc8 Kf7 Qg5 Rg8 Qd7 Rg7 Rh8 Rg8 Qd4 Rf8 Rg8 Ng1+
3n1N1R/N1BK3n/b1pb1P2/q7/qQ1B1NkB/6P1/rP1QBr2/b3b2n b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 Ra3 h5 Re3 h4 g3 h3 Re2 Nf6 Rf2 Ng8 Rg2 hxg2 Kf2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 d4 e6 h4+ Kh6 h5 Kg5 d6 a4 d5 a3 h6 a2 b6 a1B b7 Nf6 h7 Ra2 Qd2 Kg4 d7 f3 d6 f2 Ne2 g1N Nf4 Nh3 Na3 Rg8 h8Q Nh7 Nb5 Qg5 Bc4 f1Q d8N Nf2 d7 Qd1 Na7 Qa4 Qf6 Rg7 Qe7 Rf7 Qeb4 Bc5 Rh2 Nh1 Rh3 c6 Rh2 Na6 b8B Nc7 Rh5 Ba6 Bf1 Bd4+ Kd6 e5 Nde6 e4 d8B e3 Nf8 Ne6 Bbc7 e2 Rh6 Qh5 Bh4 e1B Bc4 Rf6 Kd7 Bc5 Bf1 Bd6 Bc4 Nhg5 Rh8 Nh7 Bb5 Nd8 Bc4 Re6 f6 Qha5 Bd3 Re3 Be2+ Rf3 Qdd4 Bc5 Be3 Be7 Qdd2 Bd6 Bf1 Rf2 Bd4 Q4b5 Bd3 Qba4 Be2+
3b1R1q/NR2nn1b/1P1q4/n2k1n1p/Q2Q4/1r1P1P2/B2Rb1r1/NQ1R3K b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 e4 b5 a4 f5 exf5 d5 cxd5 Qd6 Ba3 Bg7 axb5 Bf8 b6 Qd7 b5 Qd8 Bb4 axb4 g4 Kd7 f6 Kd6 f3 e5 Kf2 c5 Kg2 h5 f7 Ra3 b7 h3+ Kh2 e4 b6 c4 g5 e3 g6 c3 g7 b3 Qe2 c2 Qd3 c1Q Ra2 e2 Qb5 e1N Qd3 b2 Ne2 Qc6 Nc1 Be7 Nc3 b1B Nb3 Qde8 Qe4 Nd3 Na1 Ne5 Qa4 Bh7 Bc4 Qc5 f8Q Nbc6 b8R Na5 Qf5 Ba6 Qb1 Nf7 Rd1 Qb4 Kg1 h2+ Kg2 h1N Nb5+ Kc5 d6 Ng3 d7 Nf5 d8Q Kc6 Qdd3 Qd6 Kh1 Bd8 Rb7 Nge7 Qd4 Rg8 Rb2 Re3 Ba2 Rb3 Rc2+ Qc5 Rb2 Qd5 Na7+ Kd6 Rc7 Be2 d3 Ke6 Rbd2 Qd6 Qf4 Kd5 Rb7 Rh8 g8R Qf8 Rg3 Rg8 Qh4 Rg4 Rg2 Qh8 Rg3 Rf4 Rg8 Rg4 Rf8 Rg2 Qhd4+
1qrRQ3/B5QP/bk6/brnBQ3/2BK2Rn/PNB2Pn1/1p6/q2b1b2 b - - 0 1 illegal: No possible last move
1B1R3B/NPQ2nn1/q3pkbP/7n/r4Q2/1Q3P1K/QqN1N2b/4r1bb b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 g4 exf5 g3 b4 Bg7 f3 Nh6 Ra3 Bf8 Re3 Ng8 Re2 Nh6 Rf2 gxf2+ Ke2 Ng8 g4 h5 g5 Nc6 Bh3 Nb8 Bg4 hxg4 Kf1 Kf7 Kg2 c5 h4 a5 d4 g3 h5 a4 h6 c4 g6+ Kf6 g7 a3 d6 a2 b6 a1Q b7 c3 b5 c2 b6 Nc6 b8B Ra4 d5 Ne5 d7 Nf7 b7 Qb6 d8Q Qbb2 Kh3 g2 d6 f1B d7 Bd3 Ne2 g1B Bd2 c1N Qc7 Nb3 d8N Nc5 Qb3 Ne6 Nc6 Qaa3 Ba5 Qd6 Na7 Qa6 Na3 Bd7 Nc2 Be8 Nf4 Bf1+ Kg4 Bg2 Bc3+ Bd4 Rd1 Bh1 Ne2 Rh7 Be1 Bg1+ Kh3 Kg5 Qa2 Nfd8 f6 Bg6 f7 Nf6 g8Q Nh5 Rd4 Bg7 f8Q Be5 Bb4 Beh2 Nc1 Rf7 Bc3 Rf5 Rd5 Re5 Rd1 Re1 Bh8 Neg7 Qgb3 e6 Qfb4 Nf7 Ne2 Kf5 Rd8 Kf6 Qbf4+
4B1n1/RPN2BQ1/P1qnr3/5bkq/Q2nQR2/K1PQ2b1/1p5b/4r1nB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 c5 d4 g5 dxc5 Na6 h4 Nb8 hxg5 Ra6 Qg4 Ra7 Qd1 Ra8 a4 b6 Ba3 Ra6 b5 Ra7 Bb4 Ra8 Nd2 Ra6 Nb3 axb4 a5 Ra7 a6 Ra8 Na5 bxa5 Kd2 Kf7 Kc1 e5 Kb2 h5 f4 d5 g4 d4 g6+ Kf6 g7 a4 b6 e4 c3 d3 c6 b3 c7 d2 Bg2 e3 Ne2 h4 Nd4 h3 Ne6 e2 b7 Bd7 c8B e1B Nc7 h2 Bc6 Be6 B8d7 Qc8 Be8 Bd6 Rc1 Be5 Ka3 b2 Bg2 Nc6 g5+ Ke7 g6 Kf6 Qe2 d1N Qd3 Nce7 Rg1 Rh6 Bh1 Bg3 Ra1 Nf2 Raf1 Nc6 Rg2 Ne4 Rgf2 Nge7 g8Q Nd4 g7 Ne2 Qh7 Nd6 g8B Ng1 Bgf7 Ng8 Rd1 Qd7 Qe4 Qc6 Rd4 Nc8 Rd8 Rg6 Qh3 Nd6 Qf1 Rc8 Qfd3 Bd7 Nb5 Rc7 Ra8 Bc8 Rf1 Re7 Nc7 Re6 Ra7 Rg5 Bg2 h1Q Rf3 Qh5 Bh1 Bh2 Rf2 Rg3 Rf1 Re3 Rf2 Kg7 f6+ Kh6 f5 Kg5 Rf4 Re2 Bg6 Re1 f7 Bg3 f8Q Bd7 f6 Bc8 Kb4 a3 f7 a2 Ka3 a1N Qg7 Nb3 f8Q Nd4 Bef7 Bd7 Qe8 Bh2 Rh4 Beg3 Rf4 Bc8 Qd7 Re5 Qe8 Bf5 Qd7 Re6 Be8 Qb6 Qa4 Qc6 Bgf7+
2R1K2n/p1b1QQ1Q/N2R2B1/4nbqR/P2q2Pn/1r1k2b1/3B1n1P/3r3Q b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 c5 bxc5 Bd7 e4 Be6 exf5 Bc8 f4 h5 g4 g5 Nc3 gxf4 Nce2 h4 Ng3 hxg3 Ke2 Kf7 Kf3 Kf6 Ke4 b5 d4 e5 a4 g2 d6 f3 Kd5 b4 c6 e4 c7 e3 d7 f2 Be2 f1Q Bd3 e2 Rb1 e1B Rb3 Nc6 Nf3 g1N Ng5 Qf4 Ne6 Rb8 Nc5 Nh6 Na6 Nf3 Be3 Kg5 Ke6 Nce5 f6 Bd6 d5 Nhf7 Qa1 Bf2 Rd1 Be1 Rc3 b3 Rd2 Bf2 Qh1 b2 Bf5 b1N Bc2 Nc6 Rc5 Nh4 Bd3 Be5 d6 Nc3 Be4 Rh7 Bb1 Nh8 f7 Ne4 f8Q Rb5 Qe8 Rh5 Qf7 Bg3 Qh7 Nf2 Bg6 Rb3 Rd3 Bb7 c8R Qb6 Bc1 Qe3 d8Q+ Kf4 d7 Bc7+ Kf6 Rd5 Qf8 Rd4 Rh5 Ne5+ Qc6 Qb4 Qh1 Be4 d8Q Bf5 Qff7 Qe7+ Kg7 Qg5 Kf8 Rd7 Rd2 Qc5+ Qde7 Ke3 Ke8 Qc3 Rd3+ Ke2 Rf3 Rd1 Rd3 Qb4 Rd7 Qd4 Rd6 Kd3 Bd2
5Q2/1P4rb/1b1qn1RQ/1pNNb1b1/Rb1N1R2/2rP1K1k/1P6/nbB1R3 b - - 0 1 illegal: No possible last move
1b2b3/7K/Nr2PQB1/1rR5/n1P3kb/3Np2q/QN2PnRr/b2N2rR b - - 0 1 illegal: No possible last move
Q1Rb1K2/1P2Nn2/n7/2qn2Q1/P1r1kpPn/1B1N1bNb/2Qb2B1/r6N b - - 0 1 legal: proof: f4 d5 h4 e5 fxe5 a5 c4 b5 cxd5 g5 hxg5 b4 b3 a4 Bb2 a3 Bd4 Bd7 Bb2 axb2 a4 Bc8 Ra3 bxa3 b4 Bc5 Rh2 Be7 Rh1 Bf8 Kf2 Kd7 Ke3 c5 Kf4 h5 Kf5 h4 e4 c4 d4 a2 g4 a1N e6+ Kd6 b5 h3 g6 h2 g7 c3 e5+ Ke7 b6 c2 d6+ Ke8 b7 c1B d7+ Ke7 d5 f6 Kg6 f5 Ne2 f4 Qc2 Qb6 d8N Nb3 Ng3 Nh6 Nd2 b1N Bg2 Bd7 Nf7 Na6 Nde4 Bc6 Nf2 Bd2 Rc1 Qc5 Nfh1 Rc8 g8B Nc3 d6+ Ke8 e7 Kd7 e8N Ke6 d7 Be7 Kg7 Bd8 Ned6 Bf3 Kf8 Kd5 e6 Nd4 e7 Ndf5 e8Q Nh4 Ne5+ Nf7 Nd3 Rh6 Nhf2 h1B Qe7 Rc6 Nc8 Rhd6 Qe8 Kd4 Qe7 Nd5 Qg5 Re6+ Ne7 Re1 Bh3 Bhg2 Nfh1 Bf1 Bg2 Ke3 Ra1 Rd1 Ra3 Ra1 Rc3 Bc7 d8Q Ba5 Nh5 Ke4 Qa8 Bd8 Rc4+ Qd4 Rc3 Rc4 N5g3+ Ke3 Rb3 Qc5 Rb6 Kd4 Rc6 Ke3 Rc8 Kd4 Nh5 Ke4 N5g3+ Ke3 Qa2 Nh6 Qb1 Rc1 Qf6 Ndb4 Bc4 Nf7 Qg5 Nd5 Bb3 Rc4 Qc2 Kd4 Nhf2 Ke3 Bh1 Bh3 Bg2 Kd4 Nfh1 Ke3 Ne2 Ke4 Neg3+
7B/1q1q2QB/2n1R1KP/4RBBN/1qp1b3/n2qPQRP/2q5/1rk2rr1 b - - 0 1 legal: proof: f4 d5 a4 h5 c4 b5 axb5 Nd7 g3 Nb8 Nc3 dxc4 Ne4 e5 fxe5 Be7 Nf2 Bf6 Ng4 Bh4 gxh4 hxg4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 d4 f5 b4 g5+ Ke3 a5 b6 c5 b7 g3 b5 g2 h5 g4 Kf4 c3 e3 c2 h6 g3 e6 c4 e7 a4 Kg5 Ke4 h3 a3 d5 f4 b6 f3 d6 a2 d7 f2 Ne2 g1Q Rb1 a1Q Rb3 g2 Rb2 Qa6 Rb1 Nf6 e8B Rf8 Bb2 c1Q Kg6 Qc2 Nf4 Nc6 b8R Bb7 Nh5 Nd5 Bh8 Nc3 Rb5 Nb1 Qd4+ Kf3+ Bd3 f1Q Bf5 Ke2 Qg7 Kd2 Re5 Qfd3 Bf7 Qgc1 Bg8 Qca3 Bh7 Qb4 Rg1 Na3 Re6 Qde7 d8B Qed7 Bg5 Rf7 Rd8 Rb8 Rde8 Ba8 Re5 Qab7 R8e6 Rff8 Be4 Rf1 Bf5 Qa7 b7 Kc1 Rh1 g1R Rh2 Rf8 b8Q Qab7 Rg2 Rc8 Qd6 Rb8 Qd5 Q7b5 Kf6 Nd4 Re4 Qbd2 Bg8 Qa6 Bh7 Rb1 Qc6 Qb4 R4e5 Qaa7 Qf3 Be4 Kg6 Nc6 Rg4 Qab7 Rg3
N3Q2R/B3q2r/NpQrk1b1/4PRrn/P1q1r3/KPr5/R4q2/2Q1b1Q1 b - - 0 1 legal: proof: f4 d5 g4 a5 c4 e5 cxd5 exf4 Qa4+ Nc6 Qxa5 f3 Qa7 Nb8 Nc3 f5 Qf2 h5 Qa7 f4 Nb1 Nc6 Bg2 Nd4 Bh3 Nf5 gxf5 Bd7 Bg4 hxg4 Nc3 Be6 Nb1 Bc8 Kd1 Kd7 Kc2 g5 Kb3 c5 d4 g3 a4 g4 e4 g2 h4 f2 e5 f1R h5 g3 h6 f3 f6 f2 f7 Qc7 h7 Qb8 d6 c4+ Ka3 c3 d5 c2 b3 Ne7 Ra2 Nf5 Be3 c1R Nc3 Ng7 Nh3 g1Q Ne4 g2 Nhg5 Rc3 Ne6 Rfc1 Rh5 f1Q Nc7 Qgf2 Rf5 g1R Bd4 Be7 f8Q Qc4 Qf6 Rce1 Bc5 Rd8 h8R Nh5 Qb6 Ra7 Na8 Rg5 Bd4 Bf8 Nc5+ Ke8 Qh6 Re4 d7+ Ke7 Na6 Qbc7 Qhc6 Bh6 d6+ Ke6 Rg8 Rg1 Rgf8 Bd2 Rh8 Be1 Be3 Rg5 Bc5 Re8 d8Q Qe7 Qdc7 Rd8 Bd4 Bd7 Qbc5 Be8 d7+ Qd6 Qc8 Bg6 Q8c7 Rf8 d8Q Rf6 Qb5 Qe7 Qde8 Rd3 Be3 Rd6 Bd4 Rf7 Qbc6 Rh7 Nb8 Ra5 Na6 Rb5 Qa7 Rd5 Be3 Rd3 Qd4 Rc3 Qd1 Qce2 Ba7 b6 Qc1 Qc2 Qc5 Qce2 Q7c6 Qc4 Q5e3 Qc2 Qg3 Qf2 Qg1
QNB4q/bbr1BQR1/2r3q1/5B1p/R1q2b2/Pk1P2r1/4Q1PK/2Bqn3 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 g5 e5 d5 cxd5 f6 exf6 Ra7 Qg4 Ra6 Qd1 Ra8 h4 Nd7 f4 Ra7 f5 Ne5 Nc3 Ra8 Nce2 Nf7 Nf4 gxf4 Qg4 Ra3 Qd1 Ng5 hxg5 Ra8 Kf2 Kd7 f7 Kd6 a3 Kc5 d6 e5 d7 b5 g6 h5 g7 f3 Kg3 b3 f6 e4 Ne2 Kc4 Rh2 c5 Kh3 f2 Bb2 e3 Bc1 b4 Kg3 b2 Rh3 b1Q Ra2 b3 Ra1 b2 Qe1 Qg6+ Kh2 b1R Rg3 Ra6 Nd4+ e2 Rh3 Rh7 Bb2 Rc6 Rb3 Nh6 g8B Nf5 Rg3 Bb7 Bc1 Rb3 Rb1 Nh4 Rg5 Qa8 d8B Rg3 Be7 Bh6 Rg4 Bf4 f8Q+ Rf7 Bh7 Nf3+ Kh1 Rg7 f7 Qe8 Qd1 Ne1 Kh2 Bb8 Rb5 Ba7 Ra5 Qa8 Qd8 Qb8 Qd7 Qh8 f8Q Rf7 Qa8 Rg7 Nc2+ Kb3 Raa4 c4 d3 c3 Nb4+ c2 Na6 Rf7 Nb8 Rg7 Bb2 Rf7 Qd2 c1Q Qe8 Qc4 Bc1 Qge6 Bf5 Qg6 Bd8 Rfc7 Be7 Nc2 Qf8 e1B Qe2 Bd2 Qf7 Ne1 Bc8 Bf4 Bf5 Qgh6 Rg7 Qf6 Qg4 Qfe6 Be2 f1Q Qf3 Qf6 Qe3 Qd6 Beg4 Qg6 Qe2 Qf3 Bc8 Qf1 Bgf5 Qf3 Qee6 Qd1 Qe2
N2Q4/1rqN1K2/3bBPB1/2r1PqP1/Q1r5/Rqq3N1/k3Np2/bb2n1B1 b - - 0 1 illegal: No possible last move
2N1N3/q3rn1q/3P4/Pp3BNQ/1Kn3r1/4PRQ1/2q3nb/r1BBrk1B b - - 0 1 illegal: No possible last move, all moves rejected
1nB3Bq/Nkq1P3/1rqp4/2Q2n2/2Q2B2/n1P2RQ1/K2Pr2b/NQ1r1n2 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 g4 exf4 b4 f3 bxc5 Qc7 Ba3 Qa5 Bc1 Qd8 Na3 h5 Nc4 f5 Ra4 Bb7 Na3 Be4 Nb1 Bd3 Ra6 f4 Rg6 Bf5 gxf5 Na6 Rg5 Nb8 Rg4 hxg4 e4 g5 h4 a5 b6 g3 c3 a4 b7 g4 f6 a3 c6 a2 c7 a1R c8B g2 f7+ Ke7 h5 Kd6 e5+ Kc7 h6 g3 h7 Ba3 f8Q Ne7 e6 Ra6 Bc4 Rb6 Rh3 Nf5 Ne2 Bd6 Nd4 f2+ Ke2 g1Q Kd3 f1Q+ Kc2 g2 Na3 f3 Nb3 f2 Kb2 Qh2 Rf3 g1N Nb5+ Kc6 e7 Qc7 Bg8 Qfg2 Qf7 f1N Qe1 Qgh1 Qg3 Ne2 Qh5 Rb1+ Ka2 Ned4 Ba3 Rd1 Na1 Nc2 Qhh4 Bf4 Bd6 Na3 Be5 d6 Qhg5 Be3 Bf4 Bg1 Qh5 Qh4 Qf7 Bh2 Qe6 Nd7 b8Q Qg2 Qa7 Nb8 Qb3 Qh1 Qb1 Qf6 Qa4 Qd4 Qc4+ Qc5 Bce6 Kb7 Na7 Q5c6 Bc8+ Ka8 Bge6 Rg8 h8Q Rg4 Qe1 Rg2 Qh5 Rf2 Bg8 Re2 Bce6 Kb7 Qg3 Qg2 Bd7 Qh3 Qhg5 Qh8 Bde6 Nd4 Qgc5 Nf5 Bc8+
q2b3Q/k1P1b1BK/1QRqn3/pb2qN2/1PR3q1/7N/1Prn1N2/1N1Qn3 b - - 0 1 illegal: No possible last move, all moves rejected
B3n3/KPQ1r3/BR1n2Rq/1q1rk3/B5r1/1PqbPn2/4npQ1/3N2BR b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 f3 g4 f4 exf4 h4 Qf6 Na3 Qc3 Nc4 Qb4 Ne5 Nh6 Nef3 gxf3 g4 Be7 g5 Qd6 g6 Bg5 hxg5 Ng8 Rh5 Qd7 Rh1 Qd8 Kf2 Kd7 d4 Kd6 g7 a5 b3 c5 g6 f5 e3 h5 b6 h4 Ra2 h3 Ra3 a4 Bb5 c4 Rh2 c3 Bb2 c2 Qf1 c1N Be8 Na6 Rh1 h2 Ne2 Nf6 g8B Rh5 g7 Qd7 Qg2 Ra7 Nc3 Qb5 Nd1 Ne2 Bgf7 Bb7 g8B Nc5 Bc3 Bc8 Be1 Ba6 Bc6 Rb7 Bfe8 Re7 Ba8 Nb7 Be6 Rg5 Bc8 Rg4 Ra1 a3 Rc1 Qb4 Ba4 a2 Rc5 a1N Rb5 Nc2 Kf1 Qc5 Bf2 Ne1 Bg1 Qc3 Rb4 Bd3 Kf2 Nc5 Ba6 Ne8 b7 Ne4+ Kf1 f2 Rb6+ Kc7 Rg6 Nf3 d6+ Kd8 d7 Kc7 Rg5 Kd6 d5 Ke5 d8Q N4d6 Qc7 Rf7 Qg3 Re7 Kg2 f1R Rg6 Re1 Kf2 Nfd4 Qg2 f3 Nb2 Ra1 Nd1 f4 Kf1 Qc4 Ke1 f2+ Kd2 f1Q Bd7 Ng3 Ba4 Qb5 Kc3 f3 Rg8 Qc6+ Kb4 Nge2 Ka5 Qc3+ Kb6 Ra2 Rg6 Rd2 Qf2 Qh3 Ka7 Qh5 Qg2 Qh6 Bf2 Qg5 Re1 h1Q Bg1 f2 Rf1 Qhh6 Re1 Kf5 Rf1 Nc4 d6 Nf3 d7 Ncd6 d8R Ke5 Re1 Ng7 Rf8 Ne8 Rf4 Qf5 Rb4 Qd7 Rb6 Qb5 Qb8 Bc2 Rf1 Rd5 Qc7 Bd3 Bh2+ Ke4 Rh1 Kf5 Bg1 Ke4 Rg7 Ke5 Rg6
4n2K/P1bq4/6Pk/1RnqBb2/1RP2Qqp/R1B1r1n1/2R4q/1B1Q2bN b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 Nc6 b4 axb4 f6 Nb8 h4 Nc6 f5 Bh6 Nc3 Nb8 Nce2 Bf8 Nf4 gxf4 g4 b5 g5 Ra3 g6 Rc3 Bb2 Rg3 Bc1 Rg5 hxg5 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 d5 Kd3 h5 Kd4 e5+ Kd3 h4 c4 f3 a4 e4+ Kd4 f2 Ke5 d4 c6 b3 a5 d3 g7 Kf7 c7 e3 a6 d2 a7 b2 Qe1 b1Q Ne2 d1Q Bd2 b4 Rh2 b3 Bc3 b2 Ng3 e2 Nh1 Qbc2 Ra3 Q1d7 Qd1 e1B Bd3 f1N Rf2 Qd2 Bb1 Na6 Re2 Nc5 g6+ Ke8 Rg2 Ng3 f7+ Ke7 Re2 Nf6 g8R Ne8 Rf2 Qg5 Rc2 Bf2 Rg7 Rg8 Rh7 Qg4 Rh5 Bg1 Rg5 Bb7 c8R Be4 Rb8 Bh6 Rbb3 Kf8 Rb4 Kg7 Rh5 Bhe3 Rg5 Bd3 f6+ Kh6 f8B+ Rg7 f7 Bf5 Bd6 Bf4+ Kd5 Q8c7 f8Q Qa5 Qf6 Re7 Qf7 Re3 Kd4 Qb7 Be5 Qg2 Qc7 Qh2 Kd5 Ng7 Kd6 Ne8+ Ke7 Qa4 Kf7 Qd7+ Kg8 Qd5+ Kh8 Qd7 Ba2 b1Q Qcd6 Qc1 Bb1 Qcd2 Bf6 Qdg2 Q6d2 Bc7 Bfe5 Qgd5 Qf2 Qhg2 Qf4 Qh2 Qfd4 Qb7 Bd6 Nd3 Rd2 Be4 Rgb5 Qd5 Rc2 Nc5 Be5 Bf5 Qf4+
2b2qN1/1R3r2/1P5Q/rQ1P1k2/p1Qn3B/Nr1n1QPn/Nr2r3/K2B1n2 b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 b4 e5 f4 exf4 a4 Bd6 axb5 Be5 Ra6 f3 Rf6 Bg3+ hxg3 Qe7 Rf5 Qd8 Rf4 gxf4 d4 Kd7 Kd2 f5 Kc2 a5 Kb2 h5 e4 c5 d6 Ke6 d7 c4 b6 c3+ Ka1 c2 b7 a4 e5 f2 b5 f3 g5 h4 g6 h3 b6 f4 g7 h2 d5+ Kf5 e6 Nh6 g8N Nc6 b8Q Ra5 e7 Ng4 e8Q Nd4 Bg2 f1N Bh3 f2 Qe3 f3 Qh6 Qf8 Bg5 c1N d8Q Nd3 Bh4 Rh7 Qbd6 Re7 Qc6 Re2 Qde8 Rb2 Ne2 Rb3 Rg1 h1R Qc4 Rh2 Nc1 Ne3 Re1 f1R Qcc6 f2 Re2 Re1 Qed7+ Ke5 Na3 f1R Qc4 Rf7 Na2 Ngf2 Bg4 Nh3 Qdb5 Rg2 Bh5 Kf5 Bf3 Nf1 Re7 Re3 Rb7 Rgb2 Qe2 Re6 Qg2 Re8 Bd1 Ree2 Qf3+
1b2Bb1n/1nN1P1R1/1BR1Pn1p/RQ3qq1/1KQ1Q2k/2n1nn2/6QP/2r5 b - - 0 1 illegal: No possible last move, all moves rejected
2Q2nk1/2qR1B2/1P2NK2/1bn4Q/r1B2B2/P2PqQ1R/rpQ1r1q1/2q2r2 b - - 0 1 legal: proof: h4 a5 b4 d5 e4 g5 c3 gxh4 Na3 b5 Nc4 f5 exf5 dxc4 Ba3 Bg7 bxa5 b4 Bb2 b3 Bc1 Be5 Ke2 Bd6 Ke1 Bb4 cxb4 Kf8 Qe2 Kf7 Qd1 Ke8 Ke2 Kf8 Ke3 e5 Ke4 c5 f4 h5 g4 h3 a6 h2 b5 b2 a7 c3 b6 c2 g5 c4 g6 h4 f6 h3 f7 c3 f5 Bd7 Be2 Bb5 Bc4 Na6 d3 Qc7 Ne2 Ne7 Bf4 c1Q Qc2 Rh4 Nd4 Kg7 f6+ Kh8 Ne6 Nc5+ Kf3 e4+ Kg3 e3 g7+ Kh7 f8Q e2 f7 e1R Qe8 Ng6 f8Q Re2 g8B+ Kh8 Qf5 Nf8 Bf7 Qd2 Qd5 Qe3+ Qf3 Kh7 Be5 Rd4 Bf4 Re4 Kg4 Rd4 Rhg1 h1R Kg5 h2 Rg3 Rf1 Kf6 h1Q Re1 Qg2 Rc1 Rb8 a8Q Kh8 Qa6 Ra8 Qac8 Ra4 Ra1 Rd5 Rh3+ Rh5 Qd2 c2 Re1 c1Q Qc2 Rff2 Rg1 Rf1 a3 Kh7 Bg6+ Kg8 Rgh1 Rg5 Rh7 Rh5 Rh3 Rh6 Rd7 Rh7 Rg3 Rhh1 Bf7+ Kh7 Qfa8 Rfe1 Rd5 Qb1 Bg6+ Kg8 Rh3 Rhf1 Rd7 Qd1 Bh5 Qdd2 Qe4 Ra1 Qf3 Ra2 Qf7+ Kh8 Qg6 Qc1 Qf5 Kg8 Be8 Qh1 Q5h5 Qg2 Bf7#
5n1R/1Pn2QB1/2b1qPnQ/1Qn5/1N1r2kq/1Rr1p3/1qP1qRN1/1Q4K1 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 cxd4 f4 f5 gxf5 e6 e4 Ke7 e5 Ke8 Be2 Be7 Bg4 Bf6 exf6 hxg4 Kf1 Kf7 h4 d5 b4 a5 h5 g5 b6 d3 b7 d4 b5 a4 b6 d2 h6 d3 h7 a3 Rh2 g3 Nf3 e5 Kg2 g4 Qe1 d1Q Qd2 a2 Na3 e4 Rh6 e3 Nc4 Nd7 b8Q Ne7 b7 Ng6 Qf2 d2 Qa7 Qe2 Rh2 d1N Kh1 g2+ Kg1 Nc3 Qa4 Nd5 Rb1 a1N Qf1 Nb3 Qa5 Nc7 Nb6 Ndf8 Bb2 Nc5 Ne1 Bd7 Nd5 Bc6 Nb4 Rc8 Qb5 Qd7 Ba1 Qe6 Rb3 Rg8 h8R Rd8 R2h3 Rd4 Rf3 Rg7 Rf2 Rh7 Nf3 Rh5 Nh4 Rg5 Qb1 Rh5 Kh2 g3+ Kh3 g1Q Bc3 Rg5 Ng2 Qge1 Bb2 Ke8 f7+ Kd7 Ba1 Rg4 f6 Kd6 f5 Ke5 Bb2 Ke4 Bc3 Rd3 Ba1 Rc3 Bb2 Ke5 Ba1 Rd4 Bb2 Nd7 f8Q Qc1 Qe7 Ndf8 f7 Ke4 Ba1 Qb2 Qh4+ Ke5 Qh6 Ke4 Nf4 g2 Kh2 Ke5 Kg1 Kf6 Qh3 Kg5 Qf3 Nh7 f8Q Kh4 Qd5 Kg4 Qh6 Nhf8 Qdc4 Qe4 Qg8 Qe6 Qf7 Qc1+ Rf1 Rd6 Qa6 Rcd3 Bg7 Qb2 f6 Rc3 Kh2 Rd4 Qa4 Kf5 Qb5 g1Q+ Kh3 Qg5 Rf2 Qgg4+ Kh2 Qh4+ Kg1 Kg4 Ng2
1n1RRR2/Q2P3r/N3b2P/1R3rB1/n6B/bpb1QP1n/1brn2Bk/4K3 b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 h5 f4 f6 b4 axb4 Nc3 f5 exf5 Qd7 Ne4 Qc6 Nf2 Qc3 Ng4 Qf3 gxf3 hxg4 h4 Kf7 a4 Kf6 d4 g5 h5 e5 a5 c5 d6 b5 h6 c4 d5 b3 d7 e4 d8R c3 d6 e3 a6 e2 a7 c2 Qd2 g3 Ra3 g4 Rh3 b4 Re8 g2 Qd3 b2 Re7 b1N Rb7 b3 Rh1 g3 Rb5 Ne7 Qe3 Nd5 Nh3 g1N Nf2 g2 Nd3 Be6 d7 Nd2 Nb4 Nb6 Na6 Nh3 Ra2 g1B Bg2 Rh7 Ra4 Kf7 f6 Kg6 f7 Ba3 f5+ Kh5 f8B Bh2 f6+ Be5 Bb4 Kh4 f7 Kg3 f8R Beb2 Rg1 Kh2 Be7 Nbc4 Bh4 Nb6 Re4 Na4 Rd8 Bc3 Bb2 c1B Ba1 B1b2 Ree5 Bf7 Ree8 Be6 Bg5 Nc6 Rf8 Rc8 a8Q Nb8 Qaa7 Rc5 Bh4 Rg5 Bh1 Re5 Rgg8 Rf5 Bg2 Ng1 Kf2 e1R Rfe8 Rb1 Rgf8 Rc1 Bg5 Rc2 Ke1 Nh3 Bh4 Ba5 Bg5 Bh8 Bg7 Bc3 B7f6 Bcb2 Be7 Bhe5 Bh4 Bec3 Beg5
1B1N2nk/1P1R3Q/1Q1r2pQ/N1B1K2Q/b6r/1rN5/P1br2Pn/2b2bn1 b - - 0 1 illegal: No possible last move, all moves rejected
b5Q1/pN1r1b2/R1Q1q3/1NrrR2k/P7/2PqB3/P3q2b/KRNq2Nb b - - 0 1 legal: proof: e4 c5 f4 f5 exf5 h5 d4 cxd4 g4 Nh6 f6 Nf5 gxf5 Na6 b3 Nc5 Be2 Na4 Bg4 hxg4 bxa4 Qc7 f7+ Kd8 f6 Qa5+ Ke2 Kc7 f5 Kc6 Kf2 Qb6 Ke1 Qd8 Kd2 Kd5 h4 Ke5 c3 Kf4 h5 Kg5 h6 e5 h7 d5 Bb2 b5 Kc2 e4 Qe1 e3 Ba3 g3 Kb2 g2 Bd6 e2 Qf2 e1Q Be5 b4 Bd6 b3 Ba3 d3 Rh6 d4 Ne2 g1Q Rg6+ Kh5 Bc5 d2 Na3 d1Q Rg4 g5 Bd6 d3 Qb6 d2 Qc6 Qgf2 Nc1 Be6 Rb1 Rc8 Nb5 Qfe2 Re4 g4 Bc5 g3 Ka1 g2 Be3 g1R Re5 Bd6 f8Q Rg7 Qg8 Rd7 f7 Bc4 f8N Bf7 Ne6 Bb8 Qd6 Rc5 Qc6 Rcd5 Ned4 Bc7 Re6 Bh2 f6 Rc5 Nf3 Rdd5 Qg2 Rg8 h8N Rg7 Ng1 Qd7 Qa6 Qd3 Qb7 Qee2 Ra6 Qe8 Qc6 Qe6 Ng6 Rh7 Ne5 Rg7 Nc4 Rh7 Na5 Rg7 Kb2 Rh7 Ka3 b2 Qg8 Rg7 Nb7 Rh7 Ra1 b1B Kb2 Bc2 Rb1 Bb3 Ka1 Bc4 Nd4 Bb5 Qc7 Bc6 Nb5 Rg7 N7d6 Ba8 Nb7 Bg6 Qb6 Rgd7 f7 Be4 f8R Bh1 Na3 Qb3 Qb5 d1B Qc6 Qbc2 Nb5 Qcd2 Qc7 Bb3 Re8 Qdd1 Qc6 Qh3 N5d6 Rf5 Bg5 Bf7 Nb5 Rfd5 Re5 Qe6 Be3+
2nn1n1B/3kbr1P/3b2N1/4B1N1/2Pr1R1Q/pP2qr2/Q4p2/1KQbQN2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 g5 d4 c5 dxc5 h6 a4 Qc7 axb5 Qb6 Bh3 Qd8 Ra4 h5 Rf4 gxf4 g5 Nh6 Bf5 Ng8 Bg4 hxg4 Kd2 d5 h4 f5 e4 a5 c6 f3 e6 f4 h5 d4 e5 a4 h6 f2 e7 f1R c7 d3 g6 g3 b6 g2 b7 f3 g7 f2 h7 a3 Nf3 g1B Ng5 Kd7 Rh4 Qe8 Rf4 Nf6 g8Q Bh2 Qa2 Nc6 b8B Nd8 c4 Ra7 b3 Rg8 Kc3 d2 Kc2 Rg6 Qe1 d1N Nd2 Nc3 Bb2 Ncd5 Qc1 Nb6 Kb1 Rd1 Nf1 Rd4 Bc3 Bb7 c8N Bf3 Ba1 Bd1 e6+ Kc6 Bc7 Nfd7 Be5 Rh6 Bc3 Rh3 Bb2 Rf3 Ba1 Qh5 e8Q Qh6 Qh5 Be7 Qh4 Nf8 Bb2 Bc5 Bh8 Rf7 e7 Kd7 Bc3 Qe6 Bb2 Qe3 e8Q+ Kc7 Qe5+ Kd7 Ne7 Nc8 Ng6 Be7 Qa5 Bg3 Qe1 Bh2 Rg4 Bhd6 Rf4 Re4 Bbg7 Rd4 Be5
Q2RR1r1/1nR3rP/2Pb3B/B5rR/k6p/3pQ2N/b1b1nqP1/K1Q1n3 b - - 0 1 illegal: No proof kernel
4NK2/1R1B2n1/Qbq1rQ2/R3qP2/bBQ1PP2/2n3p1/1qnp2B1/B4r1k b - - 0 1 legal: proof: g4 e5 d4 exd4 a4 f5 h3 g5 Na3 b5 axb5 c5 gxf5 g4 h4 Qe7 Nc4 Qg5 Ne5 c4 Nd3 cxd3 hxg5 Bc5 Rh3 Be7 Rh1 Bf8 Kd2 Kf7 b4 h5 c4 d5 b6 a5 g6+ Kf6 e3 Ke5 f4+ Ke4 b5 h4 b7 a4 b6 g3 c5 a3 c6 a2 c7 h3 g7 h2 Qe2 Ra6 Nh3 Bc5 Ba3 Nc6 b8Q Nf6 g8B Nb4 b7 Nc2 Bb4 Bd7 c8Q Re6 Qd6 Ne8 b8B Bb6 Qc4 Ng7 Bf7 Rh7 Be8 Ba4 Bd7 Rh5 Rg1 h1Q Qdc6 Rhh6 Be5 Rh8 Rb1 a1Q Qa6 Qb2 Ra1 Bb5 Ra5 Ba4 Qcc4 Rhh6 Qg4 Rh7 Qg6 Kf3 Qf6 Qg2+ Nf2 Rh1 Kd1 d2 e4 Qh2 Ng4 Qh6 Bh3 Qg6 Re1 Rf1 Nh6 Kf2 Ng4+ Kg1 Ke2 d1N Kd3 Nc3 Rb1 Qh6 Qf7 Qh8 Nf6 Kh1 Ne8 Qh6 Qf6 Qh8 Nc7 Qa8 Ne8 Qc6 Kd2 d3 Bd4 Na1+ Ke3 d2 Kd3 d1Q+ Ke3 Qh5 Kd3 Bd8 Be5 Qh8 Kd4 Qa8 Kc5 d4 Qb3 d3 Qbc4 d2 Bd4 Re7 Kd6 Nc2 Be5 Bb6 Bd4 Rf7 Be5 Rf8 Ke7 Qc6 Bd4 Qg8 Be5 Qgd5 Bd4 Rh8 Be5 Rh6 Kf8 Ne2 Bd4 Qe5 Bdc3 Qb3 Ba1 Nc3 Bd6 Qa3 Rbb5 Qb2 Bb4 Bc7 Rb7 Bb6 Qff7 Rd6 Qf6 Re6 Bg2+
4R1Bn/r1r2Q2/bQ2n3/1qQP1PnK/1pk2bp1/4q3/2P2QN1/1NRrN3 b - - 0 1 legal: proof: g4 f5 b4 a5 e4 axb4 exf5 b3 Bb5 h5 Bxd7+ Kf7 gxh5 c5 Ba3 b2 Bb4 cxb4 Ke2 e5 Kf3 b5 Kg4 g5 a4 b3 f4 b4 h4 e4 d4 e3 h6 e2 d5 e1Q a5 Qee7 h5 Qe2+ Nf3 Qee7 f6 Qe1 f5 Rh7 a6 Ra7 Qd4 Qde8 Qf2 Q1e3 Rc1 Nc6 Ne1 Bd6 Be6+ Kf8 f7 Ke7 f8N Bf4 Ng6+ Kd6 Nh4 Kc5 Nhg2 Rhc7 h7 Nd8 h8Q Kc4 h6 Ne7 h7 Ng6 Qf6 Nh8 Qf7 Qb5 Kh5 g4 Ra5 Ra8 a7 Ba6 Nc3 b1N Ra2 Ng6 h8Q b2 Qhf6 Nd2 Nb1 Nh8 Q6e7 Nf3 Qd6 Rac8 a8Q Ra7 Qab8 Ng5 Qbb6 Rcc7 Ra3 Qd2 Re3 Qd4 Nc3 b1R Qde7 Ra1 Nb1 Qdc5 Qh7 Qd4 Bg8 Nde6 Qhf7 Qc3 Re5 Qe3 Qef8 Ra3 Q8e7 Rd3 Qef8 Rd1 Re4+ Nd4 Re8 Nde6 Qfc5+
rB1q4/1Rk2b2/3NP2p/2KQRrrb/p3R3/2bPRn2/P3Q1N1/q1Qn4 b - - 0 1 illegal: No possible last move
bB3q1q/b2K1n2/2P2k1P/2R1R1r1/1pB2r2/1R2NpBQ/P2Qqn2/1b4B1 b - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d4 h5 dxc5 Rh6 gxh5 Rh8 f4 e5 f5 f6 Nc3 Rh7 Nd5 Rh8 Nf4 exf4 e5 Ne7 exf6 Ng8 Kf2 Kf7 Kf3 g5 Kg4 d5 h4 b5 c4 b3 c6 d4 h6 b4 h7 b2 c5 b1Q h5 f3 c7 d3 Be3 d2 Ne2 Qe8 Nc3 Qb2 Bg1 Ra5 Rb1 Nc6 Nd5 Qe2 Ne3 Bb7 c8R Ba8 h6 Bg7 Rh5 Nd8 c6 Qe5 Rb3 Rd5 Qc2 d1B Qd2 Bc2 Rb8 Qc3 Rb5 Bb1 Rc5 Qb2 Rc1 Rb5 Rc5 Bf8 Re5 Bd6 Rc5 Bb8 Re5 Ba7 Rc5 Kf8 f7 Ke7 f8B+ Kf6 Bd6 Nf7 Bc7 Qe5 Bb8 Qe7 Bg3 Qf8 Re5 Ne7 Rc5 Ng6 Re5 Rg8 h8Q+ Rg7 Qh7 Nf4 Rc5 Qh8 Qg8 Nh3 Qc8 Qe1 Bc4 Qe2 Bb8 Ra5 Qc7 Rg8 Qh2 Rf8 Qg3 Nf4 Qh3 Nd3 Kg3 g4 Kh4 g3 Kg4 g2 Rg5 Ke7 f6+ Ke8 Kf5 Nf2+ Ke6 Rb5 Bgh2 g1Q Rge5 Qgg7 Bg3 Rg8 Qe1 Qf8 Qd2 Rg4 Qf1 Qfg7 Qh3 Kf8 Kd7 Rf4 Bh2 Kg8 Bg1 Kh7 Nf1 Kg6 Ne3 Ng5+ f7 Qgf8 Qd5 Kf6 Qd2 Qfg8 f8B Nf7 Bfd6 Qf8 Rh5 Rh4 Bg3 Rf4 Rce5 Rc5 Re8 Rcf5 Re5 Rg5 Rc5 Rg6 Rhd5 Rg5 Re5
2kr2qB/B1bQ2b1/PQK1R3/4qn1B/2p4P/1P6/2Q1rN1p/n1q1QN1r b - - 0 1 illegal: No proof kernel
1nq3b1/3N3p/6q1/K3P1BP/Q2B1Q2/N1Nb3b/2NpnkP1/Qrq2rR1 b - - 0 1 illegal: No possible last move
nn1nQ2k/q3NP2/1Nb3rQ/BrP1R3/p1Qp2Nr/7q/3P1N1b/2K2R2 b - - 0 1 illegal: No possible last move
1B1bqrb1/B1k2pQ1/BP2p1RN/1R1Q4/bK1Q3r/P4n1P/1nq5/1n4Q1 b - - 0 1 illegal: No possible last move
nq1n1qRK/N2P2rQ/p2qb3/1r4R1/pk5P/R2rP1Q1/b1BB3B/7B b - - 0 1 legal: proof: f4 b5 c4 h5 a4 bxa4 g3 d5 cxd5 e5 Nc3 Ba3 Ne4 f5 Nf2 Be7 Ng4 hxg4 fxe5 f4 Bh3 f3 Bg2 Bg5 Bf1 Bf4 gxf4 Kf7 Qc2 Ke7 Qd1 Ke8 Kf2 Ke7 Ke3 c5 Ke4 g5 h4 f2 b4 c4 d4 g3 e3 a6 f5 g2 f6+ Kd7 Kf5 g4 Kg6 c3 Kg7 g3 d6 Kc6 e6 c2 e7 Kb6 e8B Bd7 f7 Be6 f8Q Bh3 b5 Ka5 d7 Nh6 b6 Ra7 d5 Rb7 d6 Kb4 Qh5 Be6 Nf3 g1Q Nd4 g2 Qff3 Qh2 Bd3 g1R+ Qg3 f1B Nb5 Nf7 Ra3 Bg2 Qh6 Bgd5 Na7 Ba2 Qh7 Qc8 d8B Nd7 Bc7 Nd8 Bb8 Rd1 Rg1 Qf2 Be4 Rd3 B8g6 Qc7 Bh1 Rg8+ Kh6 Rg7 Bd2+ Qc3 Bc7 c1Q Rg2 Rb8 b7 Nb6 d7 Qf8 Bf4 Qb2 Be5 Rd5 Bc2 Na8 Bc7 Rb5 Be5 Rc8 b8R Rc5 Rc8 Rd5 Rc5 Rd4 Bb8 Qb1 Rg5 Rd3 Qh2 Rbd5 Qf5 Ka5 Rh5 Rg6+ Kh7 Qcb4 Qg1 Qb2 Bh2 Qe5 Rg4 Rb5 Qg3 Qb8 Qf7 Rc3 Qg8 Q4d6 Kh8 Rgg5 Rh6 Rg6 Rg5 Kb4 Rh7 Qff4 Rf7 Rg7 Rf8 Qf6 Qh7 Qf7 Rg8 Qff8 Bc1 Rd3 Bd2+
2Br2kn/KP2rB2/Q3Nq1p/6Q1/2N1n1pb/1PQ2q1R/1P5n/2bbQ2N b - - 0 1 illegal: No proof kernel
5Rb1/P1bq2QQ/BPnn1R2/2p2B1q/1r1Bp1rr/1P6/1Q1Q4/3KNkb1 b - - 0 1 legal: proof: e4 b5 h4 g5 c4 gxh4 cxb5 f5 exf5 d5 Qa4 a5 Na3 Qd6 Nc4 dxc4 Qxa5 Qd7 Qa7 Qd8 d4 Kd7 f4 Kd6 g4 Kd5 a4 Ke4 g5 h5 f6 e5 b6 c5 a5 h3 b3 h2 g6 h4 f7 c3 d5 c2 d6 h3 g7 Rh6 d7 Ne7 g8B Rc6 a6 Rg6 f5 Rg4 f6 Nf5 Nf3 Bd6 f8Q Nc6 f7 Bc7 Bb2 Ke3 Qg7 c1B f8Q e4 Kd1 Kf2 Bh7 Be3 Qfh8 Nd6 Bf5 Qe7 d8Q Be6 Ra3 Qd7 Ne1 Bg8 Qdg5 Rd8 Bd4 Ra8 Rg1 h1Q Be2 h2 Rf1+ Kg3 Ra1 Bg1 Qd2 Qf3 Qb7 h1R a7 Rd8 Qhh7 Rh4 Qa6 Qh1 Qa3 Qh2 Rb1 Kh3 Ba6 Qe5 Bg6 Qh5 Qab2 Kg3 Rf8 Kh3 Ke2 Kh2 Bf5 Kh3 Nd3 Kg2 Kd1+ Kf1 Ne1+ Bc4 Kc2 Qdf7 Bc3 Nc8 Rd1 Rd4 Qh2 Qd7 Qd6 Be2 Qdh6 Rb4 Rd6 Bc4 Rdf6 Nd6 Bd4 Nd8 Kd1 Nc6 Bc8 Be6 Qhd2 Bg8 Ba6+
5B1Q/3kb2r/RB6/PPqRn1Q1/7n/2npr2P/2Q1p1N1/Kn1b1bQR b - - 0 1 illegal: No possible last move, all moves rejected
2B1bb2/nKNb2Bn/1br3p1/4QNn1/kNR1Q3/pr1P1q2/N5PP/6B1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 b4 g6 Ra6 g5 Rg6 hxg6 f4 f5 exf5 gxf4 Kf2 Kd7 Kf3 e5 Ke4 a5 d6 c5 Kd5 a4 b6 c4 b7 f3 b5 c3 b6 f2 f6 e4 f7 e3 Ba6 f1B Nf3 e2 Qc2 e1N Nh4 a3 Nf5 Qg5 Qe4 c2 Nc3 Qg3 Na2 Bb5 d3 Nf3 Be3 c1B Bg1 Nc6 b8Q Na7 b7 Nf6+ Kc5 Ng5 Kb6 Bg7 f8B Qf3 Nc3 Nfh7 Na2 Bh6 Bg7 Bc6 Ng3 Re8 Nf5 Re6 Qc7+ Ke8 b8N B8d7 Bc8 Be3+ Ka6 Bf2 Qa5 Bb6 Qae5 Ba4 Nc6 Rb8 Ncb4 Bac6 Bf6 Bf8 Bh8 Kd8 Bg7 Be8 d7 Rb7 Qb2 Kc7 d8N Bcd7 Qbe5+ Rd6 Bc5 Rb8 Rc1 Rb7 Rc4 Rb8 Qa1 Rc6 Bg1 Rb7 Nh4 Rb8 Ne6+ Kd6 Nc7 Rb7 Rd4+ Kc5 Nf5 Rb8 Nbd5 Rb7 Nfe3 Rb8 Rb4 Rb7 Qae5 Ba5+ Rb6 Rf6 Rd6 Rb3 Re6 Bb6 Kb7 Ba5+ Rb6 Rc6 Rb4 Bb6 Rd4 Nf6 Nf5 Nfh7 Ne6+ Kb5 Rc4 Ka5 Ndb4+ Ka4 Nc7
n1B2Q1Q/1Q1b4/2PBqbR1/5pbR/pr3Pn1/2nK2kP/2n5/Q2Nr2B b - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 dxe5 Be7 a4 Bd6 axb5 Bf8 g4 h5 c4 hxg4 c6 d5 c5 Ke7 Na3 Ke8 Nc4 dxc4 e4 Ke7 Ke2 Ke6 f3 f5 b6 a5 h3 g5 c7 c3 c6 g3 b7 c2 Bb2 c1B Qc2 a4 Qd3 g4 Qc2 g2 Qd1 g3 Ba3 Qe8 Kd3 Bd7 c8B Bg5 Ne2 g1N Bd6 g2 Nc3 Ne2 Rg1 Na6 b8Q Nd4 Qb7 Nh6 f4 Nc2 Qdb1 Bg7 Nd1 Nc7 Ra2 Rb8 Qa1 Kf7 e6+ Kg6 e5 Kh5 e7 Kh4 e6 Kg3 Be2 Rh7 Bf3 Ng4 Be4 Qg6 e8Q Na8 e7 Qe6 Qh8 B7f6 e8Q Re7 Qef8 Re8 Re1 g1N Bh1 Ne2 Rg1+ Kh2 Rb2 Nc3 Rb6 Re7 Ra6 Re8 Ra7 Re7 Qc7 Rb4 Qb7 Nge3 Rg4 Re8 Rh4 Kg3 Rh5 Re7 Ra5 Ng4 Re5 Qg8 Rd5 Re1 Re5 Qa2 Re7 Qg8 Rg7 Qe6 Rg6
RB2r1Q1/2Q4P/2P2rq1/3rB1BN/2p5/1n2bnpK/1NbP1k1N/n1r1B3 b - - 0 1 illegal: No possible last move
R5r1/n2P3r/nbk5/pQqbQQ2/5P2/bR2r2R/p2P1b2/NNBQ1K2 b - - 0 1 legal: proof: a4 b5 c4 d5 cxd5 bxa4 f3 f5 e3 f4 exf4 Qd6 Nh3 Qd7 Ng1 Qd8 g4 h5 f5 g6 f4 Bh6 Bh3 Bg7 fxg6 Bh6 g5 Bf8 Bg4 hxg4 b4 Kd7 h4 e5 b5 c5 d6 a5 b6 c4 g7 e4 h5 e3 h6 e2 h7 g3 g6 c3 b7 g2 Rh6 a3 Nh3 g1B Rh5 c2 Nf2 a2 Rh3 Qe7 Ng4 Bb6 Ne3 Kc6 d7 Na6 b8Q Qc5 Qe5 Ne7 g8Q Bb7 g7 Rd8 Qc4 Nc8 g8Q Na7 Qgf7 Rb8 Kf2 e1B+ Kf1 Bf2 Qff5 Re8 Qce2 Rg8 h8R Re7 Qeh5 Rh7 Qhg5 Kb5 Qgh5 Bd5 Qhe2+ Kc6 Qed3 Rg3 Rg8 Bd6 Ra8 Rg8 Qb5+ Kc7 Ba3 c1R Bb2 Rc3 Bc1 Kb7 Nc2 Be7 Nba3 Rd3 Rb1 Re3 Rb3 Bd6 Nb1 Kc7 Qc4 Kc6 Qce2 Qd4 Qeh5 Ba3 Na1 Qc4+ Qhe2 Qc5 Qb5+
1Q5R/1r1P4/q1rpb1Qp/b2r1P1B/P1b5/4N1Qn/R1bBn3/Q3KR1k b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d6 Ra7 Rh5 Ra6 Rh1 Ra8 d4 e6 d7+ Ke7 d5 Kf7 d6 Be7 Na3 Bf8 Nc4 Qe8 d8R Qb5 d7 Ke7 Nd6 cxd6 Bb2 Qa5 Bc1 Qb6 a4 h6 f4 b3 g4 b2 g6 Kf6 g7 b1B Bh3 e5 Bd2 e4 Bg2 e3 Bc6 e2 Nf3 Ra5 Rh3 Rd5 Be3 Be7 Ra2 Qa6 Rh1 b5 Rh3 b4 Rb2 b3 Bd2 Bc2 Bb7 Nc6 Ba5 Nd4 Rb1 b2 Rh2 Bb3 Rc1 b1B Ne5 B1c2 Bd2 Bc4 Bc6 Bb7 Rc8 Bd8 g5+ Ke7 g6 Kf6 Rb8 Ne7 g8Q Ba5 g7 Ng6 Qh7 Rf8 g8Q Rc8 Bb5 Rc6 Ra8 Nf8 Qg3 Nfe6 Rh8 Ng5 Rf2 Nh3 Qhg6+ Ke7 f6+ Ke6 Ng4 Ba8 Qg8+ Kf5 f7 Ke4 Ne3 Bb7 Rh2 Ba8 Q3g6+ Kf3 f8Q Bb7 f5 Ba8 Ra1 Bb7 Rh1 Ba8 Ng4 Kg2 Qb8 Bb7 Rh2+ Kg1 Rf2 Kh1 Ra2 Ba8 Qa1 Bb7 Bc3 Ba8 Ne3 Bb7 Kd2+ e1R Rf3 Rb1 Rf1+ Kh2 Q8g7 Rb3 Ke1 Ne2 Bd2 Ba8 Rf4 Kh1 Rf2 B4d3 Bc4 Rb7 Bb5 Bc4 Qge5 Bb4 Qeg3 Ba5 Rf1+ Neg1 Bb4 Rd2 Qh5 Be6 Bd3 Rc3 Qad1 Rb5 Qhg5 Bad5 Qb1 Rb7 Qa1 Rc6 Qg6 Bc4 Be2 Rd4 Bh5 Rd5 Rf4 Ne2 Bd2 Rb3 Rf2 Rb7 Rf1+
6NK/bQP5/Pn1R3b/1pB1N1r1/3Rpn2/b1PRb1Nr/Qq1n1k2/1N6 b - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 a5 g4 c5 dxc5 Qc7 b4 Qb6 bxa5 Qd8 f5 h5 Be2 b6 Bf3 Ba6 f6 Bc4 Be2 Be6 Bf3 Bf5 gxf5 Ra7 Be2 Ra8 Bg4 hxg4 Ke2 Kf7 Ke3 d5 Kf4 g5+ Ke5 g3 a4 e3 h4 b5 h5 e2 c3 e1B c6 g4 a6 d4 h6 g2 a5 g3 a7 d3 h7 d2 Qf3 d1N c7 Nf2 Rh3 Bd2 Ba3 Bdh6 Qb7 Qd2 Ne2 g1B Bc5 g2 Ra4 Ne4 Ng3 Bge3 Rd4 g1B a6 e6 Qd5 Be7 Qa2 Qb2 Rd6 Nd2 Rd4 Kf8 f7 Kg7 f8R Nf6 Rfd8 Nd5 f6+ Kg6 f7 Kg5 f8N Nf4 Nd7 Kg4 Nf6+ Kf3 R8d6 Kf2 Ng8 Bef8 Kf6 e5 Kf7 e4 Kf6 Nd7+ Kf7 Re8 a8Q Re5 Qb8 Be7 Qb7 Bhg5 Kg7 Nb6 Nf6 Rd8 h8N Bh6+ Kh7 Rg5 Ng6 Rg8 Ne5 Rh5 Rh1 Rgg5 Ng8 Rh3 Rd3 Bh2 Rd1 Bg1 Rd8 Bd6 Kh8 Bdf8 Bd4 Bb4 Bc5 Ba3 R8d6 Nf1 Nc4 Nd7 Re6 Bd4+ Ne5 Kg2 Ba7 Bge3 Rd6 Kf2 Bb6 Bdc5 R3d5 Bcd4 Rd3 Nd2 Ba5 Bdc5 R5d4 Ba7 Bb4 Nb6 Bc5
Q1Q1b2k/P2P4/brR1P2Q/Kp1p1B2/b2r1B1Q/1rB5/r1n3N1/2R1q2n b - - 0 1 legal: proof: d4 a5 g4 d5 c4 h5 gxh5 e6 cxd5 Qd7 b4 axb4 d6 Qd8 d7+ Ke7 f4 Kd6 d5 Kc5 d6 Kb5 Nc3+ Kc6 Nd5 exd5 e4 Be7 e5 Bf8 e6 Ra7 Qd2 Ra4 Qd1 Ra8 Be2 Kc5 Bf1 Be7 Nf3 Bf6 Kf2 Be5 Nd2 Kd4 Nb1+ Ke4 fxe5 Kf5 Nd2 Kg5 Ke1 Kh6 Nf3+ Kh7 Kd2 Nh6 Ke1 Kg8 Ng1 Kf8 Be2 Ng8 Bc4 Qf6 Bf1 Qd8 Kd2 f5 h4 c5 a4 g5 a5 Kg7 e7 g4 e8Q c4 a6 g3 e6 b3 Kc3 g2 Kb4 f4 Rb1 c3 Qe1 f3 Nh3 g1R Bg5 b2 Qe5+ Nf6 Bd3 c2 Bd2 c1R Qf5 f2 Nf4 f1B Qe4 Rg4 Ng2 Rc3 Rc1 b1B Bf4 Bc2 a7 Rb3+ Ka4 Nc6 Qc4 b6 Bh7 Ne4 Qb4 Rg8 h6+ Kh8 h5 Qh4 d8Q Bd7 Qc8 Ba6 Qf8 Be8 d7 Nd4 Rhd1 b5+ Ka5 Bb1 Rc6 Ng3 Rdc1 Bc2 Qbe7 Qh1 Qh4 Rb8 Qff6+ R8g7 Qfd8 Rb7 Qa8 Rb6 Qdc8 Qe1+ Bd2 Rf7 Qhd8 Re4 Qh4 Rb2 Bg6 Kg8 h7+ Kg7 h8B+ Kg8 h6 Rf2 Be5 Ba4 Bc3 Rb3 Bf4 Ra2 Bf5 Nc2 h7+ Kf8 Bg6 Rd4 Bf5 Kg7 Be4 Nh1 Bd3 Qe4 h8Q+ Kg6 Q8h5+ Kg7 Qh6+ Kg8 Bb4 Qe2 Bh7+ Kh8 Bc3 Qe1 Bf5+
3QBN1q/bn1R4/3PQr2/p1Pr2NQ/p2k4/2b1R3/K2P2q1/n1Q1rr1R b - - 0 1 legal: proof: b4 b5 e4 d5 g4 h5 gxh5 e5 a4 c6 f3 bxa4 b5 c5 Ba3 Bf5 Bb4 cxb4 exd5 e4 Ke2 e3 Ke1 Be4 fxe4 Qf6 Ke2 Qe7 Ke1 Qd8 h4 Kd7 c4 Kd6 h6 Kc5 h7 a5 d6 g5 e5 f5 b6 g4 h5 b3 e6 f4 b7 b2 e7 e2 e8Q f3 h6 g3 Nh3 g2 Na3 g1B Nc2 b1R Ng5 Nd7 b8R Bg7 Ra3 Ngf6 Nd4 Nd5 Qc1 Nb4 Qe6 Qg8 Rb6 Rf8 Rb7 Rf6 Re3 Qa8 Ra7 Rb8 h8Q Rb5 Qh7 Qh8 Qg6 Ra1 h7 Rb1 Qh5 Ra1 Nf5 Rb1 Nh4 Kd4 Bh3 Nc5 Rd7 Nb7 Ng6 Rd5 Nf8 Na2 Qd1 Nc1 Bf5 Nb3 Bg6 Na1 Qc1 Qg8 Be8 Qh8 Re4+ Kd3 Re5 Ba7 c5 Kd4 Re3 Qg8 Kf2 e1R h8Q Qh7 Qhg8 Qh8 Ra3 Ree5 Re3 Re4 Ke1 f2+ Kd1 f1Q+ Re1 Qg2 Re3 Nb3 Kc2 Ref4 Qhh7 Rf1 Qh5 Ra1 Kb2 Rb1+ Ka3 Na1 Ka2 Re1 Qcd1 Ref1 Qc2 Rbe1 Qc1 R6f4 Qgf7 Bf6 Re4+ Kd3 Re2 Bc3 Qfe7 Rf6 Re3+ Kd4 Qd8
4nR2/b2p4/2q3P1/b3qB1r/b1P1PQ1Q/N5Bn/prQ3Q1/kbB2KN1 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 g5 b4 g4 c4 g3 Ra3 Na6 Rc3 dxc3 hxg3 Ne7 g4 Nb8 g5 Ng8 g4 Ke7 e3 Ke6 g6 a5 g5 h5 g7 f5 b6 f4 b5 c2 g6 a4 b7 h4 b6 a3 Nf3 a2 Qd3 h3 Qb3 h2 Rg1 h1Q Rg5 Nc6 b8B Bc5 b7 Rh5 Bc7 Ba7 b8Q Bb7 Qa4 Qe8 Qb5 Nd4 Bb2 c1B Qb4 Bd2+ Kf2 Ne2 Qd8 Ng1 Bc1 Bc6 Na3 Nf6 Qc3 Ba4 Qc2 Ba5 Rf5 Rb8 Bh3 Rb2 Kf1 Qe7 Bg4 Nh3+ Ng1 f3 Qb8 f2 g8Q+ Qf7 Qh8 Qc6 Qhd8 Ne8 Qh4 Qe7 e4 Qec5 Qb4 Qe7 Qbd2 Qg5 Rf8+ Qf5 Ke2 f1B+ Ke1 Bd3 Bd6 Bd8 Qg2 Bc7 Qd1 Bb1 Qdc2 Ba5+ Ke2 Bf2 Kf1 Ba7+ Qhf2 Bc5 Qf4 Ba7 Bc7 Ke7 e6 Qe5 Bd8+ Kd6 e7 Kc5 Bc7 Kb4 Bf5 Qd4 Qh4 Qdd5 Bg3 Qe5 Qcf2 Kb3 Qff4 Nf6 e8Q Kc3 Qe6 Ne8 Qef6 Rc2 Qd6 Re2 Be3 Kb2 Bc1+ Ka1 Qd3 Rb2 Qdc2
4B1N1/p2R1p2/1B1K4/2R2Qrk/b2BRrb1/1n3PR1/nP4qP/Qq2r1r1 b - - 0 1 legal: proof: a4 e5 d4 exd4 g3 b5 axb5 c6 bxc6 h6 Nc3 Be7 Ne4 Bh4 Ng5 hxg5 gxh4 g4 Kd2 g5 Kd3 d5 c4 g3 e4 g4 h5 g2 f3 g3 c5 Bb7 c7 Nf6 c8Q Na6 h6 Kf8 h7 Kg7 e5 Kg6 c6 Ne4 c7 Nc3 e6 Qg8 e7 Kh5 e8R Na2 Ne2 g1Q Re4 g2 Nc3 Qg3 Qd7 Rag8 c8R Rg5 Rc5 Bc8 Be3 Qe1 Qb5 Bg4 Qda4 Qgf2 Rd1 g1R Qaa5 Rb8 h8B Qg2 Qd7 Rb3 Qf5 Rb4 Rd2 Qc1 Be2 Re1 Rg1 Ra4 Bd1 Rc4 Ba4 Qb1+ Rc2 Rb4 Be8 Rc4 Rc7 Ra4 Bf2 Rb4 Rd7 Nc5+ Kd2 Nb3+ Kd3 Qh1 Rg3 Qg2 Be5 Ra4 Bc7 Rg1 Bb6 Rc4 Ke2 d3+ Ke3 d4+ Kf4 d2 Ke5 d1B Kd6 d3 Bfd4 d2 Nd5 Ra4 Rc6 Bc2 Qa6 d1R Ne7 Rde1 Rc5 Rc4 Ng8 Bd1 Bf2 Ra4 Ree5 Rf4 Bd4 Nd2 Re4 Ba4 Qe2 Nb3 Qd1 Qbc2 Qa1 Qc1 Rc8 Qb1 Rc5
1n1B4/1BqQ1nN1/1P1rpr2/1P2N3/p1Q1KPQ1/2R1n1q1/b4q1r/1B1kB3 b - - 0 1 legal: proof: c4 b5 e4 g5 a4 d5 cxd5 f5 axb5 fxe4 Ra5 g4 Ra6 Qd6 Ra1 Qd8 b4 Bb7 h4 Bc6 f4 Bd7 Ra3 Nc6 Rf3 gxf3 g4 Bf5 g5 Bh6 g6 Bg5 hxg5 Nb8 Rh5 Bd7 Rh1 Bc8 Kf2 Kd7 Ke3 Kd6 d4 h5 b6 a5 g7 c5 g6 c4 b5 a4 Bd2 f2 Bc3 h4 Qh5 h3 Na3 h2 Bd3 f1N+ Kf2 e3+ Kf3 e2 Nc2 e1Q Ne3 Rh6 Ke4 Qg3 Nf3 Qc7 Be1 c3 Qg4 c2 Ne5 c1Q Bb1 Be6 Rg1 Qf2 Rg3 h1R Rf3 R6h2 Rg3 Nh6 g8Q Q1c3 g7 Nf7 Qc8 Qd8 Qc4 Qc7 g8B Rh6 Bh7 R1h2 Rf3 Rf6 Bf5 Bc8 Bd7 Qb3 Bc6 Be6 Bb7 Ra7 Ng2 Ra8 Rc3 Ne3 Nh4 Nd1 Rc2 Qbg3 Rc3 Ne3 Nef3 Kd7 d6 Ra7 Nf5 Bd5+ Kd3 Ke6 d7 Ra8 d8B Ra7 Qb4 Ba2 Ke4 Ra8 Ne5 Ra7 Rc5 Ra8 Ng7+ Kd6 d5 e6 Qa5 Ra7 Rc3 Ra8 Ra3 Kc5 d6 Ra7 d7 Ra8 Nf3 Kc4 Qd2 Ra7 Rc3+ Kb4 Qc1 Ra8 Rc6+ Kb3 Qc4+ Kb2 Qd3 Ra7 Rc3 Ra8 Qc4 Ra7 Bc2 Kc1 Bb1+ Kd1 Be7 Ra8 d8Q+ Nd7 Qe8 Rc8 Bd8 Nb8 Be7 Rd8 Ne5+ Qe2 Qec6 Rd5 Bd8 Rd6 Qh4 Qb2 Qd7 Qbf2 Qg4+
bQn1RR2/1qkr1q1B/1p1R1Q2/2PRn3/2np4/bK3P2/3P3N/1BbB1q2 b - - 0 1 legal: proof: e4 g5 h4 d5 hxg5 d4 b3 b5 Ba3 Bg7 Bc5 Bf8 Bb6 axb6 Nf3 Ra7 Ng1 Ra4 b4 c5 bxc5 f5 Rh5 e5 Na3 f4 Nc4 Ra7 Rh3 Rd7 Rh1 Rd5 exd5 e4 Ne3 fxe3 c4 Kd7 g4 h5 a4 e2 d6 h4 c6+ Ke8 d7+ Ke7 c7 Kd6 a5 b4 g6 b3 g7 b2 a6 b1Q a7 h3 a8B h2 g5 Qd3 g6 Rh5 Nf3 Bb7 c8R Nc6 Qa4 Qf6 Qa7 Na5 Re8 Ne7 g8B Nc8 g7 Kc7 Bh7 Ba3 g8R Bc1 Rgf8 Rd5 Ra2 Qf7 d8Q+ Kc6 Ra1 Rd7 Qf6+ Kc7 Bh3 Qb1 Bg4 Qd3 Rg1 h1Q Nh2 Qg2 Bgf5 Qgg7 f3 Qb1 Rg6 Qd3 Kf2 e1N Ra4 Qb1 Ke2 e3 Bc2 Nd3 Kd1 Ne5 Rb4 Qa1 Rb5 Qb1 Rd5 e2+ Ke1 Qb5 Bd1 Qa6 Qf5 Qb5 Rgd6 Qb1 Qf6 Qa1 Kf2 e1B+ Ke2 Bg3 Bb1 Nec6 Kd3 Ne5+ Kc2 Bh4 Qh6 Bd8 Qf6 Be7 Re6 Bc5 Red6 B5a3 c5 Nac4 Kb3 Qh7 Qa4 Bc6 Bb7 Qe4 Ba6 Ba8 Bb7 Qe2 Qa7 Qf1 Bh7 Bab2 Bb1 Qa6 Bc6+ Qb7 Bb5 Na3 B5d3 Nac4 Bh7 Ba3 Qb8+
2b1qB2/7b/Q1PpR2r/Nn3P2/3Qbb1r/2RpRQ2/1kBr1P1R/2b3K1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 Bb7 h5 Bc8 g4 Qb6 h6 Qc7 Nd2 Nc6 Ndf3 Nd8 Nh4 gxh4 g5 Ne6 g6 Ng7 hxg7 Qd8 c4 e5 b4 Ke7 c5 Kf6 c6 a5 b6 h5 b5 d6 b7 e4 b8Q Ke5 b6 d3 b7 Kd4 Bg2 Kc3 Kf1 e3 Bd5 a4 Bb3 e2+ Kg2 e1B Bf7 a3 Bf4 a2 Bg5 h3+ Kh2 h4 Be3 Nf6 g8R Ra4 g7 Nd5 Qa8 Bd2 b8Q Nc7 Qba7 Nb5 Bh6 Bc1 Bb3 Qe8 Nf3 Re4 Kg1 h2+ Kg2 Re6 Ne5 h3+ Kf1 Be7 Nc4 Beg5 Na5 Bgf4 Q8b7 Rg6 Qba6 Rg4 Rb1 Rh4 Qg4 Rh7 Ba4 Rh8 Rb3+ Kc2 Rc3+ Kb1 Bg5 R8h6 Qd4 Ka1 Be7 Kb1 Rg1 h1B Bf8 h2 Rg3 Bd5 Re3 h1B Kg1 Bhe4 Qf3 Bf7 Bd1 Bg6 Bb3 Bh7 Ba4 a1R Bc2+ Kb2 Be7 Qf7 Re8 Rb1 g8R Bd2+ Kg2 Qh5 Bf8 Rd1 Re6 Bc1 Rg7 Rd2 Kg1 Qf7 Rg2 Qe8 Rh2
5rbN/1K3NBr/2P2b1q/1kNr1Qq1/2R2P2/1n3r2/1Rp1rpP1/2Q1Q1N1 b - - 0 1 illegal: No proof kernel
4QrQ1/1KP5/1prR2Rq/kr1rB1Rp/1RnPnN2/5qPr/6BB/7b b - - 0 1 legal: proof: h4 f5 b4 d5 d4 a5 e3 g5 hxg5 c6 Nc3 axb4 Ne4 c5 dxc5 fxe4 Bc4 d4 Bf1 d3 Rh6 Bg7 Rh1 Bd4 exd4 Qd6 Ba3 Qd5 Bc1 Qd8 Kd2 Kd7 Ke3 Kc7 f4 e5 c4 h5 a4 b6 f5 d2 a5 b3 a6 b2 c6 b1R a7 Qf8 c5 Na6 g6 Qf6 g7 Qh4 f6 Rh6 f7 Ne7 g8Q Bb7 f8B Qf6 Qe2 d1Q Ra5 Nc8 Bg7 Rb5 Nh3 Nd6 Nf4 Rf8 a8R Qg6 Rd8 Nc4+ Kf2 e3+ Kf3 Qe6 Ke4 Qb3 Qe1 e2 Rd6 Qf6 Kd5 e4 g3 e3 Bg2 Kb8 Rh4 Ka7 Rg4 Rg6 Bh8 Qg5+ Be5 Qh6 Ra4 Ba8 Rg5 Qa3 Qh1 e1R Rb4 e2 Be3 Rgf6 Qh4 Rh1 Bg1 Rh3 Bh2 e1R Qg4 Rc1 Qe2 Qf3+ Qe4 R6f7 Rgg6 Rb7 c7 Rc3 c8R Rd7+ Ke6 Bb7 c6 Nc5+ Kd5 Ka6 Rc7 Rdd8 Rcg7 Ka5 Rg5 Qf1 Qe3 Rc2 R7g6 Ne4+ Ke6 Qf3 c7 Rf5 Qe2 Rdf8 Kd7 Ba8 Bg7 Rfd5 Be5 Na3 Qe3 Rc6 Qe1 Rf6 Kc8 Nc4 Qe8 Rf8 Qd1 Qd3 Qg4 Qf3 Kb8 Bb7 Qe6 Ba8 Qg8 Nc5 Rb1 Qg4 Rde6 Rcd6 Bh8 Rdf5 Bf1 Bh1 Bg2 Rc6 Rd6 Ne4 Kb7 Qf3 Rb4 Rfd5 Be5
KB4qq/QP1np3/r1pB4/1QBbq2n/6qk/2P4P/RNb1q1BN/6N1 b - - 0 1 legal: proof: e4 g5 b4 d5 h4 dxe4 a3 f5 Ra2 g4 a4 b5 Ra3 f4 Re3 fxe3 axb5 Bb7 Ne2 Ba6 Ng1 Bc8 Nh3 h5 Bb2 a5 Bc4 Bh6 Bf1 Bg5 hxg5 h4 Ng1 h3 Ba3 h2 Bc1 Rh3 gxh3 Ra6 Ke2 Rh6 Ke1 Rh8 Ke2 Kf7 d4 Kg6 f4 Kh5 c3 a4 b6 c6 f5 a3 g6 a2 g7 a1Q b5 g3 d5 g2 d6 Be6 f6 Qa5 b7 Qac7 d7 Bd5 f7 Kh4 f8Q Nf6 g8N Kh5 b6 Na6 b8B Ba2 b7 Kg5 Nd2 Kh5 Nc4 Qg3 Qd3 Nc5 Ba3 Bb1 Nh6 Kh4 Nb2 Bc2 Ng4 Nh5 Qb5 Qe8 d8B Nd7 Qf3 Qg8 Qf8 Qe5 Bb6 Qf6 Bbc5 Qh6 Ke1 e2 Kf2 e3+ Kf3 e1Q Qf4 e2 Qe3 Bb3 Ke4 Bc2+ Kd4 Qf2 Bcd6 e1Q Bac5 Qhf8 Bc4 Qg3 Bd5 Qe5+ Kc4 Qfg7 Kb4 Qgf6 Ka5 Qe2 Ka6 Qfg7 Ka7 Qh6 Nf2 Qgg4 Ka8 Rg8 Bb4 Qhh8 Qa7 Rf8 Bdc5 Rf4 Ba3 Ra4 Bd6 Qgg8 Ng4 Ra6 Bac5 Qe1 Ne2 g1Q Bg2 Qgd4 Rg1 h1B Nh2 Qdg4 Rf1 Qd1 Ng1 Qd2 Ra1 Qde2 Bf1 Bg2 Ra2 Bd5 Bg2
3kBQq1/1q2b3/1Nnr4/R1qRb1q1/4RP1P/1p3Np1/r3P3/1K1bNRQ1 b - - 0 1 legal: proof: f4 d5 b4 f5 c4 e5 fxe5 a5 cxd5 axb4 g3 f4 Nf3 h6 Ng1 f3 Bb2 Na6 Bd4 Nc5 Be3 Ne6 Bg5 Nf4 gxf4 hxg5 h4 b5 d4 c5 Kd2 g4 Kc1 g5 a4 f2 d6 g3 e6 c4 a5 g2 a6 g4 e7 c3 d5 c2 a7 b3 Qd3 b4 Qb5+ Bd7 Qa5 Ba4 Qb6 Rh6 Nf3 g1B Bh3 f1Q+ Ne1 Bd4 Nd2 Qg1 Nf3 Be5 Qf2 Kd7 e8R Be7 Qb6 Qc5 Rf1 Qa5 Bg2 g3 Qg1 Kc8 d7+ Kc7 Bh1 Rd6 Ra2 Qc8 d8R b2+ Kd2 b1Q Ra3 Qa2 Kc1 Qb5 Bg2 Bb3 Ra5 Qf5 Bh3 Qg5 Bd7 Qb7 Bb5 Bf8 Re6 Ne7 Be8 Nc6 Rd7+ Kc8 Ree7 Bh8 Re4 Be7 Bh5 Be5 Be8 Rb8 a8N Ba4 Rc7+ Kd8 Nb6 Bb3 Qh2 Ra8 Qg1 Na7 Rc3 Nc6 Rd3 Ba4 Rdd4 Qc4 Kb2 Qc5 Ka2 c1Q Rd1 Q1c3 Kb1 Q3c4 Rd2 Bd1 Rd3 Rd7 d6 b3 Rd2 Qcg8 Rd5 Rc7 d7 Rcc8 Rb5 Ra2 Ra5 Ra8 Nd4 Ra7 Ndf3 Ra6 Qd4 Na7 Nc4 Rd6 Qg1 Kc7 Nb6 Nc6 Bh5 Nb4 d8Q+ Kc6 Qf8 Kc7 Ra6 Nc6 Be8 Kd8 Ra5
k1Nnqr1R/1Nb5/3Q2q1/B1P1pQ2/nP3q1p/5b1K/1P2R1RR/Qbb5 b - - 0 1 legal: proof: h4 b5 e4 g5 hxg5 c5 d4 cxd4 a3 b4 axb4 d3 Rh6 f5 Rh2 a5 Be2 d5 Bf3 d4 Rh1 Ra7 Qd2 Rd7 Qd1 Rd5 exd5 Qb6 Be4 fxe4 Rh2 Qd6 Rh1 Qd8 Kf1 Kd7 c4 Kc7 f4 Kb7 g4 h5 Kg2 e5 f5 h4 c5 d2 d6 a4 f6 e3 f7 d3 d7 a3 g6 a2 g5 e2 g7 e1B g6 Na6 Ne2 Nb8 Nec3 Nc6 Rh2 Nge7 g8R Qe8 d8Q Ka8 g7 Nd5 Qd6 Nd8 Ne4 Nb6 Na3 Bf5 Nc4 Na4 Na5 Bh7 Rb1 a1Q Kh3 Bf2 Nb7 Be3 Qf1 d1Q Qf5 Be7 f8Q d2 Qf1 Qa2 Q8f5 Qc2 Rf8 d1B g8R Qa3 Rgg2 Bf3 Ra1 Bh6 Bg5 Qe3 Re1 Qf4 Ree2 Rg8 Qa1 Qd3 Qde6 Bd6 Be7 Bb8 Ned6 Bc7 Nc8 Qd6 Qd7 Qdg6 Qd6 Rh8 Rf7 Rf8 Rg7 Qe4 Rg8 Bc1 Rh8 Qf4 Bf6 Bg8 Be7 Ba2 Bg5 Bb1 Be7 Nf7 Bd8 Bb8 Ba5 Bc7 Bb6 Nd8 Ba5
1rR5/2qRK2n/4n1PQ/1P1p2R1/R1rPqN2/1B2kq2/n4Npq/Q1b2N2 b - - 0 1 legal: proof: b4 e5 g4 f5 a3 c5 bxc5 fxg4 a4 b5 axb5 e4 Bg2 e3 Bh3 Na6 Bf1 Nb8 d3 Nf6 Bd2 Ba6 Bg2 exd2+ Kf1 Bc8 Bh3 Kf7 Kg2 Ke7 Kg3 Ng8 Bf1 Kf7 Kg2 Ke8 h3 g3 Kf3 g2 Ke4 Qc7 Kd4 Qb6 Kc3 Qd8 Nf3 g5 Rg1 g4 Rh1 g3 Ng1 Bb7 Kb2 Bf3 Kc3 Bg4 hxg4 Qe7 Kb2 Qg5 Kc3 Qd8 Kd4 Kf7 Ke5 Kg6 c4 Kg5 e4 h5 f4+ Kh6 g5+ Kg6 d4 a5 c6 d5 Ke6 a4 c7 h4 c8N a3 e5 a2 c5 h3 c6 h2 c7 Bg7 Nh3 g1Q Bc4 Bh6 Nf2 Ra4 Bb3 Nc6 Qc1 d1Q f5+ Kh5 f6 Nb4 f7 Nf6 f8Q Nh7 Nd2 Qf3 Ne7 g2 c8R Qe1 Qb1 Qee4 Ng6 Qc7 Nf4+ Kh4 g6 Kg5 Re1 h1Q Nf1 Qh2 Rd8 Rg8 Rd7 Rh8 Qg7 Rb8 Ke7 Kf5 e6 Kg5 Re2 Kf5 Nh5 Bc1 Nf4 Kg5 Re1 Kf5 Qb2 Kg5 Qh6+ Kf5 Rb1 a1N Qc3 Na2 Qa5 Nc2 Ra1 Rc4 Re2 Ncb4 Rc2 Nc3 Ra4 Nca2 Re2 Nd3 Re3 Qd1 Rg3 Nc5 Qc3 Qdf3 Qa1 Qb1 Nh1 Ke4 Rg5 Qe2 Nf2+ Kf3 Kf7 Qbe4 e7 Ne6 e8R Q2d3 Ke7 Qc3 Nd2+ Ke3 Rc8 Qcd3 Re5 Qe2 Rg5 Q2f3 Nf1+
B1n1B1BQ/QrNR4/2N2P1K/b6P/1N1q3n/qp2p3/bP1b1N2/3n1b1k b - - 0 1 legal: proof: d4 b5 e4 a5 a4 c5 dxc5 g5 Nc3 f5 exf5 b4 Nb1 Ra6 Bf4 Rb6 Bc1 Rb5 axb5 Bg7 Ra4 Bh6 Ra1 Bf8 f4 h6 g4 Qb6 f6 Qa7 f5 Qc7 Bf4 Qd8 Ra3 Nc6 Rg3 gxf4 g5 Nb8 g6 Na6 Rg4 Nb8 Rg5 hxg5 Ke2 e5 Kf3 d5 Kg4 Kd7 c4 e4 h4 a4 f7 a3 f6 Ke6 h5 a2 b6 a1Q b7 f3 g7 Ke5+ Kg3 f2 c6 g4 Kh4 Kf4 c5 d4 c7 g3 c6 g2 Qe1 d3 Rh3 d2 Bb5 f1B Rd3 d1N Nc3 Nd7 b8N Ne5 Rd7 Qa3 Na2 Rh7 Nh3+ Kf3 Kg5 g1B Nf2 Kg2 Qe3 Ne7 g8B N5g6 Qa7 Nh4 Na6 Bb7 c8B e3 c7 Bd5 Ba4 Bh2 Bb7 Nc8 Ba8 Be5 Nb8 Bc3 Nc6 Bd2 Bb5 Bc5 f8N Bb6 Ne6 Ba5 Ba4 Rf7 Kh6 Bdc4 Nc3 Kh2 Nd5 Ba2 Bb5 b3 Ndb4 Qe7 Ba4 Qc5 Bb5 Qd4 Ba4 Nb6 c8Q Re7 Qf8 Nc8 Nc7 Kg2 Ne4 Kh1 Qg7 Re5 Qh8 Rb5 Nf2+ Kg2 Bf7 Rb7 Bb5 Kg1 Be8 Kg2 Bc4 Kg1 Bg8 Kh2 Ng4+ Kh1 Nf2+
5Rbq/1q1r2B1/kNqP1P1b/1p1Q1p1r/RQ4Qq/4n1N1/4QPb1/RK6 b - - 0 1 illegal: No possible last move, all moves rejected
b2r4/2B2B1p/n4QNk/BpBPR3/Q3R2P/Q2rqbK1/1qq1P3/q4b2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 d4 axb4 d6 Bd7 d5 Be7 Nc3 Bg4 Nb5 Bc8 Nd4 Bf8 f4 exd4 Qc2 Be7 Qd3 Bf6 Qd1 Be5 fxe5 Bg4 Ba3 Bh3 Bc1 Bc8 g4 f5 Qc2 f4 Qb1 Nc6 Qd3 Nce7 Qd1 Nf5 gxf5 Qf6 Nf3 Qe7 Ng1 Qd8 Kf2 Kf8 a4 b5 h4 c5 d7 g5 e6 Kg7 f6+ Kh6 f7 b3 a5 d3 e7 g4 e8Q b2 a6 b1B a7 d2 Ba3 c4 Qc1 d1Q Qc3 g3+ Kg2 f3+ Kh3 g2 Kg3 f2 Rh3 Qa5 d8B Be4 Qe7 Bf3 Bc7 Nf6 Bc5 Bb7 Ra4 Rhd8 Qa3 c3 Re4 c2 Bb4 Qa4 Bba5 c1Q Qed6 Rac8 a8Q Qac2 Qda6 Q1b2 f8B+ Kg6 Bfb4 Qda1 Bc5 Kh6 Qe6 Bc6 Qf5 Nd7 Qf6+ Kh5 Qa4 Nb8 Qa6 Ba8 Qad6 Bg4 Nf3 Na6 Ne5 Bf3 Ng6 g1Q+ Bg2 Qgc1 Bh1 f1B Qde7 Bg4 Bf3 Kh6 Qed6 Bh5 Bg4 Q1d2 Be6 Bf3 Bf7 Qe3 Qc3 Re8 Qca3 Rcd8 Qf6 Re5 Rh1 Rf5 Rg1 Rf4 Re5 Rd4 Re4 Rd3 Re5 B1g2 Rd1 Bf1 Rd2 Rb3 Rd4 Rd3 Rde4
1k4rb/1Q2PQ1Q/b1Qr3b/1n3p2/q4Np1/P1BR4/2Nbr1PK/2q2BN1 b - - 0 1 legal: proof: c4 e5 f4 a5 fxe5 g5 b4 axb4 h3 d5 cxd5 b3 a3 Nd7 Ra2 bxa2 h4 g4 Qb3 Nc5 Qc2 Ne4 Qd1 Ng5 hxg5 Be6 Rh6 Bd7 Rh1 Bc8 Kf2 Kd7 Kg3 a1B d4 b5 e4 c5 g6 Kc7 e6 f5 g7 h5 d6+ Kb8 d7 c4 d5 h4+ Kh2 c3 d6 c2 e7 h3 e8Q b4 e5 b3 e6 b2 e7 Rh6 Nd2 b1R Nc4 Rb2 Bd2 c1B Qc2 Qa5 d8Q Qa4 d7 Nf6 g8Q Nd5 Qef7 Nc3 Ne3 Nb5 Bc3 Bd2 Qgh7 Rd6 Qe4 Rc2 Qc6 Bh6 Qde8 Rb2 d8N Ba6 Qed7 Rc2 Ne6 Bb2 Bb4 Bh8 Nf4 Rb2 Nc2 Ra2 Kg3 h2 Ba5 Ra1 Bb4 Re1 Bc3 Re2 Ngh3 Rf2 Bd3 Bc1 Re1 h1Q Re2 Bd2 Re3 Qc1 Bf1 Re2 Kh2 Qc4 Qd8+ Ka7 Ng1 Qa4 Rd3 Rc8 Qde8 Kb8 Qed7 Rg8 Qdb7+
3q1nr1/2Pq3k/2B1r1b1/KRq2P2/b1QRN3/QRR2Q2/1Pp1pb2/6bN b - - 0 1 legal: proof: c4 c5 a4 h5 d4 f5 g4 f4 gxh5 b6 e3 Na6 exf4 Nc7 f5 Nb5 axb5 Rh6 Bf4 Rh7 Bd6 cxd4 c5 Rh6 c6 Rh8 Bc5 bxc5 Kd2 Kf7 f4 a5 h4 e5 h6 d5 h7 g5 c7 Kg7 b6 g4 b7 d3 Kc3 d2 b8R c4 h5 d4+ Kc2 e4 Qf3 d1B+ Kd2 g3 Rb6 a4 Ne2 g2 Ng3 g1B Nc3 d3 Rh4 a3 Nh1 a2 Bg2 Ba4 Rc1 a1Q Rb3 Qa3 f6+ Kh6 f7 Nf6 Rc2 Rg8 h8Q+ Nh7 Qd4 Bc5 f8R Ra7 Rf5 Nf8 Rc1 Bb6 Rfb5 Kh7 h6 Ra6 f5 Bd7 Qd5 Bbf2 Qc5 Re6 Rf4 Kh8 h7 Be8 Qce3 Kg7 Qee2 Qc5 h8Q+ Kf7 Qh4 Kg7 Qhg3+ Kh7 Rg4 Bg6 Qd6 Qd5 Qa3 Qe5 Nb1 Qed6 Kc3 e3 Nd2 Qc5 Ne4 d2 Rc2 d1Q Qf1 Qe5+ Kb4 c3 Qc4 e2 Ka5 Qed5 Nc5 Qc1 Rd4 Q5d7 Ne4 Qe3 Rcd2 c2 R2d3 Qd5 Rdc3 Q5d7 Nd6 Qe5 Ne4 Qc5 Nd2 Bh5 Qg4 Q8c8 Bc6 Bg6 Qf3 Qcd8 Ne4
3Qb1Q1/2p1q1P1/rQk1Nb1b/2N5/2qPrR2/3N1bR1/1Q1PnrpK/4B3 b - - 0 1 legal: proof: g4 d5 f4 b5 a4 f5 axb5 fxg4 c3 e6 f5 d4 cxd4 Bc5 Ra4 Be7 Ra1 Bf8 f6 g5 h3 g3 Bg2 Nd7 Be4 Ne5 Bf5 exf5 h4 g4 Ra6 Nf7 Ra1 Ng5 hxg5 Ba6 Qc2 Bb7 Qd1 Bc8 Kf1 Kd7 Kg2 h5 b4 a5 e4 a4 b6 a3 f7 f4 e5 a2 b7 h4 b8Q Nf6 g6 Ba6 g7 Nh5 e6+ Kc6 e7 Bb5 Ne2 Ra6 Nbc3 f3+ Kg1 h3 e8Q+ Qd7 Nf4 g2 Qb3 f2+ Kh2 f1R Rg1 Ng3 Qb2 Ne2 Qed8 Qe7 Ne4 Rh4 Nd3 Rf2 Nec5 Ba4 Rb1 a1Q Qbc8 Qa2 b5+ Kb6 Rf1 Qb3 Ra1 Qc4 Ra3 g1B+ Kh1 Rg2 Rf4 g3 Qa8 h2 Qa7+ Ka5 b6 Be3 b7 Rf2 b8Q Rg4 Rb3 Be8 Qba8 Qd7 Q7b8 Be7 f8N Bf6 Nfe6 Qe7 Qba7 Bg6 Qg8 Be8 Qd8 Rh4 Qb1 Rg4 Ba3 Rh4 Bb4+ Kb5 Qb2 Kc6 Ba3 Rf1+ Kg2 Rg4 Kh3 h1B Qab8 Bd5 Rc3 g2 Kh2 Rf2 Bb4 Qd6 Ra3 Bf3 Qb6+ Kd5 Nb7 Qd7 Bd6 Qf7 Nbc5 Qe7 Re4 Bh6 Bg3+ Qd6 Rf4 Qd7 Qbb8 Kc6 Qa7 Qe7 Bh4 Rf1 Be1 Rf2 Rc3 Rg5 Qab8 Re5 Q8b4 Re4 Rb3 Qd6 Qb6+ Kd5 Nb7 Bg4 Ne5 Bgh5 Rg3 Bf3 Nd3 Qd7 Q6b3 Kc6 Nbc5 Qe7 Qb6+
r1rBq2R/1P6/b1BPq3/4N2r/n1pQ1N2/k2B4/N2p1PQb/2NKb2r b - - 0 1 legal: proof: d4 b5 c4 e5 a4 exd4 axb5 h5 g4 d5 gxh5 d3 e4 f5 b4 d4 e5 Nd7 Ra2 Nb6 Re2 Nd5 Re4 fxe4 cxd5 Rh7 Be3 Rh6 Bc1 Rh8 h4 Ke7 e6 Kd6 b6 c5 e7 g5 e8B a5 b7 d2+ Ke2 e3 b8N d3+ Kf3 c4 b5 Kc5 h6 Kb4 b6 e2 h7 e1B h5 g4+ Ke3 a4 h6 a3 Qf3 d1Q Ne2 a2 Qg2 a1R Nbc3 g3 Nd7 Ne7 Ne5 R1a5 Bc6 Ba6 b7 Qe8 Na2+ Kb3 Kf3 Nc8 Bg5 d2 Bd8 Nb6 d6 Ka3 Ke3 Na4 Nec1 Bg7 Bd3 Qg4 Rh5 Qh3 Ke2 Qhe6 Kd1 Rg8 h8Q Rc5 Ng4 Be5 h7 Rg5 Rh3 Rh5 Qg7 Bf4 h8N Be5 Ng6 Bf4 Bf3 Rcc8 Qd4 Be5 Bc6 Bf4 Qh2 g2 N4e5 g1R Qg2 Bh2 Nf4 Rh1 Rh4 Rg5 Rh6 Rh5 Rh8
nN2rN1Q/1brrp2r/3r1BQ1/kP1NQ1R1/1B6/5QP1/4Pp2/bn3K1n b - - 0 1 legal: proof: b4 g5 c4 b5 a4 h5 axb5 h4 g4 d5 cxd5 h3 Bg2 hxg2 Ra3 Qd6 Rf3 Qg3 Rf4 gxf4 fxg3 Be6 Na3 Bd7 Nb1 Bc8 d4 Kd7 h4 a5 g5 f5 g6 c5 g7 Kc7 h5 Kb6 h6 f3 h7 c4 d6 c3 d7 a4 d8N c2 d5 a3 d6 a2 d7 a1R Ne6 f4 Nd2 Nh6 g8Q R1a7 Qg6 Bg7 Rh5 Ba1 Ba3 c1R d8Q+ Rcc7 Qb3 Na6 Rg5 Ng4 Ne4 Nf2 Nf6 Bb7 Nf8 Nh1 Nh3 g1N Qde8 f2+ Kf1 Nf3 Qb8 Rd7 Qe5 Re8 Qbc3 Nc7 Qb3 Rg8 h8B Na8 Bg7 Rh8 Qbd5 Ne1 Qf3 Rh7 Bh8 Nc2 Bg7 Rd6 N6d7+ Kc7 Nb8 Kb6 Bf6 Rd7 Bc1 Na3 Bd2 Nb1 Bc3 Bd5 Bd2 Rac7 Bc3 Kb7 b6 Rd6 Nbd7 Ka6 b7 Be4 b8Q Bb7 Nc5+ Kb5 Na6+ Ka4 b5 Rcd7 Kg2 f1R Bb4 Rc1 Qd8 Rcc7 Kf1 Bc6 Nb8 Bb7 Qfe3 f3 Nf4 f2 Qf3 Rb6 Nd5 Rbd6 Ba3 Ka5 Qc8 Rdd8 Qh3 R8d7 Bc5 Rf7 Qh8 Rh7 Bb4+
3BK1n1/2N3q1/3R2P1/n1bB1n2/PN2P1nB/2p1Nk1b/QNp1br2/Q4b2 b - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 a5 b4 axb4 h4 b3 hxg5 Bh6 Qc2 Bg7 Qd1 Bf8 a4 b5 Rh4 d5 Rh1 b4 Ra2 Ra7 Rc2 Rb7 Rc3 Rb5 cxb5 Nd7 Rc2 Nb8 Rc4 dxc4 Kf2 Ke7 Ke3 Ke6 Ke4 c5 d4 h5 g4 h4 b6 c3 g6 c4 g5 h3 b7 h2 g7 f6 g6 c2 Nh3 b2 Na3 b1N Nf2 b3 Bg2 b2 Nd3 Qe7 Bg5 Nd7 b8N f5+ Kf4 c3 Na6 Nd2 Bh4 b1B Nab4 Ndf6 Kg5 f4 Nc4 f3 Ne3 f2 Nb2 Ba2 Qa1 Nc4 Rd1 h1N Bf3 f1B d5+ Kd7 d6 Ke6 d7 Na5 d8B Ng3 Ba8 Nf5 Rd2 Bc4 Bd5+ Kd7 e6+ Kd6 Rd4 Ke5 Rd1 Qa7 e7 Ng4 e8N Bc5 Nc7 Rh7 Bf3 Bd7 Rd6 Bd3 Bd5 Rh6 Bf2 Rh2 Bh4 Kd4 Ne8 Rf2 Nc7 Nge7 g8Q Be6 Qf7 Ng8 Ned1 Ke5 e4 Bde2 Ne3 Bc8 Kh5 Kf4 Qe6 Kf3 Kg5 Nge7 Qg8 Nh2 Kf6 Ng4+ Kf7 Qb7 Qe8 Ng8 Qe6 Qa7 Ke8 Qb7 Na8 Qg7 Qf7 Bca6 Nc7 Bh3 Bc6 Bef1 Qfa2 Bae2 Bd5
4QK2/1R1PRNNb/1b1PpB1Q/n2P3n/n1bb3q/1r1k2p1/6N1/1n2Q1Q1 b - - 0 1 legal: proof: f4 a5 c4 b5 a4 g5 axb5 d5 cxd5 h6 d4 Bd7 g4 Ra6 e4 Bc8 e5 Kd7 d6 Ke6 Be2 gxf4 d7 h5 g5 Kf5 d5 Rd6 exd6 Kg6 Bg4 hxg4 Kf2 Kf5 h4 Ke4 b4 f5 g6 c5 g7 c4 h5 a4 b6 f3 Kg3 f2 Kh4 f1N Kg5 c3 Kg6 c2 Kf7 e6 b5 a3 h6 a2 b7 f4 b6 f3 h7 f2 Nd2+ Kd3 Rb1 a1N Bb2 c1B Nh3 Qh4 Bf6 Na6 b8Q Nc5 b7 Na4 Nc4+ Nd2 Qe1 f1B Ne3 Nab3 Nf5 Na5 Rb6 Nb1 Nf4+ Kc2 Ng2 g3 Qa7 Bc4 b8Q Kd3 Rb7 Be3 Rh2 Be7 Rh3 Bd8 Kf8 Bd4 Qba8 Bc3 Qag1 Bb6 Rh2 Bcd4 Rh3 Nh6+ g8Q Ng4 Rh1 Ba2 Ng7 Bc4 Ra7 B8a6 Rb7 Bab5 Qe8 Ba6 Qh5 Bab5 Qh6 Ba6 Bd8 Nf6 Rh3 Nh5 Bf6 Be5 Ke7 Bed4 Qe8 Rg8 h8N Bab5 Nf7 Ba6 Qa8 Rc8 Rh1 Rc5 Ke8 Rb5 Kf8 Rb3 Qe8 Kc2 Qge3 Bd3 Rh3 Bh7 Q3g1 Kd3 Nh8 Bg8 Qh7+ Qe4 Nf5 Bc4 Qg7 Nf4 Rh7 Nh5 Qh6 Qg4 Re7 Bh7 Ng7 Qh4 Nf7
K4nrb/4R1Q1/4r1b1/1pknBQn1/1P4Bb/1pP1RP2/1Q2Nn2/1bB1B3 b - - 0 1 illegal: No possible last move, all moves rejected
1B1N2b1/1K4p1/BPQ5/1R1N2P1/p2brPb1/b1N2N2/q2br1qk/rQ1B4 b - - 0 1 legal: proof: b4 c5 a4 f5 d4 cxd4 g4 h5 g5 b5 axb5 Qb6 Ra3 Qc7 Rg3 Qd8 Rg4 hxg4 e3 Rh7 Qe2 Rh6 Qd1 Rh8 Nd2 e5 Be2 f4 Bf1 e4 Nb1 Ne7 Kd2 Nd5 Qe1 f3 Qd1 Nf4 exf4 e3+ Ke1 e2 Bd2 Na6 Bc1 Nc7 Kd2 Nd5 Bh3 Qa5 Bf1 Ne3 fxe3 Qd8 Kd3 Ke7 Kc4 Kd6 h4 e1B e4 a5 b6 a4 Kb5 g3 c4 d3 c5+ Ke6 b7 d5 Kc6 g2 b8N f2 e5 Kf5 h5 d4 e6 d2 h6 d3 e7 Qa5 e8Q Be6 h7 Be7 b5 Rf8 h8N Bb3 b6 Bg8 Be2 f1Q Nf3 Kg4 Nd7 Kg3 Ba3 g1B Nf7 Bd4 Nc3 Qg2 Qb1 d1B Kb7 d2 c6 Qd5 Nd8 Qa2 c7 Ra5 c8B Re5 Rh2 Re4 Bd6 Rf5 Be5 Ba3 Bb8 Rfe5 Nf6 Re6 Ba6 Be2 Qg6 d1R Nfd5 Bd2 Bd7 Re8 Bg4 Rh1 Qc6 R8e5 Qc2 Ra1 Rh1 Re8 Rb1 Bd1 Rb5 R8e6 Ne5 Kh2 Bh5 Bg4 Qb1 Bh3 Bd1 Bg4 Ng6 Re2 Nh4 R6e4 Nf3+
q1qNQ3/n5qr/P1k4p/PN1RRr1P/1R3Qqp/2KB2r1/1n4n1/4N1N1 b - - 0 1 legal: proof: c4 d5 h4 dxc4 b4 a5 bxa5 g6 h5 Bh3 Bb2 Bf5 Bf6 Bc8 Bh4 g5 d4 gxh4 d5 Bg7 e3 Bd4 exd4 Be6 Kd2 Bh3 Ke1 Bc8 f3 e5 Qd2 e4 Qd1 e3 Nh3 Bf5 Ng1 Be4 fxe4 Kd7 Be2 Ke7 Bf1 Ke8 g4 Kd7 a4 b5 e5 c5 d6 f5 a6 h6 e6+ Kc6 e7 c3 e8R f4 g5 b4 a5 c2 g6 c1Q g7 c4 d7 e2 Bg2+ f3 Bh3 b3 Re3 c3 Nd2 b2 Nb1 c2 Na3 b1Q Bf1 Qbb2 Re5 Rh7 Nb5 Qf4 Rb1 Ne7 g8Q c1Q Qe8 Nd5 Rh2 Qa1 Rb4 Ne3 Rg2 Qe4 Rgg5 Nc4 Rd5 Qc8 Rge5 Qg5 Qc1 Qa4 Qd2 Nb2 Qf4 f2+ Kd2 e1N Bd3 f1R Kc3 Qgg6 Na3 Rf3 Nc2 Ng2 Ne1 Rg3 d8N+ Kc7 Qg5 Qg7 Nf7 Nc6 Qf4 Na7 Nd6 Qad7 Nb5+ Kc6 Qf3 Qeg4 Qf4 Rb8 Rf5 Rb6 Rde5 Qa8 d5+ Kc5 Rg5 Rf6 d6+ Kc6 Rd5 Rf8+ Rge5 Rf6 Qb8 Qc7 d7 Rf5 Qe8 Qcc8 d8N#
1BN5/2qBPQQ1/2B1n1K1/3bR1p1/1Nbbr1qP/2p3PQ/1bkq2Bq/8 b - - 0 1 legal: proof: f4 a5 a4 h5 b4 axb4 g3 e5 fxe5 h4 Ra3 h3 Rb3 Ne7 Rf3 Ng8 c4 b5 d3 c5 Rf6 b3 Rf2 b4 Rg2 hxg2 d4 Na6 Bf4 Rb8 Bc1 Rb5 cxb5 c4 Nc3 Nh6 Nb1 Nc5 dxc5 Ng8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 h4 d5 e4 d4 b6 b2 a5 d3 a6 c3 b7 b3 b8Q d2 c6 Bb7 a7 Nf6 Kg5 f4 a8B f3 c7 f2 c8Q+ Nd7+ Kg6 Ba3 Qbc7 Re8 Qh5 d1Q Ne2 g1B Bf4 Bd5 Nc1 Qd2 Bg2 f1B Bc6 Bd4 Na2 Bfc4 Nb4 Re7 Q7b7 Qc7 Re1 Re8 Qd8 Nc5 Qdc8+ Ke7 Qh3 Ne6 Bh1 Qh2 Nd2 b1Q Bg2 b2 Q5f5 Qc2 Qf7+ Kd8 Re2 b1Q Re3 Bb2 Re1 Bf1 Nc4 Qd2 Nb6 Bfc4 Nc8 Qbd1 Bd7 Nc5 e6 Qg4+ Kh7 g5 Kg6 Qa5 Bb8 Qc7 e5 Re7 Bc6 Re8 Qa7 Re7 Ba8 Re8 e7+ Kd7 Qg7 Ke6 Re2 Qd6 Bc6 Qc7 Kh6 Kf5 e6 Rf8 e8B Rg8 Bed7 Re8 Re3 Re7 Rf3+ Ke4 Rf5+ Ke3 Kh7 Ke2 Re5+ Kd1 Kg6 Re8 Nd3 Kc2 Qa2 Rd8 e7 Ne6 Qa1 Rf8 Qf1 Rf4 Qf2 Re4 Nb4+ Kc1 Qff7 Kd1 Na6 Kc2 Nb4+
3r2Q1/Qpbn1p1q/1B2P1p1/6B1/nP1bR3/1n1NP1k1/1Q1RK1b1/R1Q4r b - - 0 1 legal: proof: f4 a5 c4 h5 g4 d5 cxd5 e5 fxe5 Ra7 gxh5 Ra8 b4 a4 Bh3 Ra6 Bf5 Ra7 Bc2 Ra8 Bb3 axb3 a3 Be6 Bb2 Bf5 Bc1 Bc8 Nc3 Ra4 Na2 bxa2 Nf3 Ra6 Ng1 Ra8 d4 Kd7 h4 c5 e6+ Kd6 a4 g6 h6 c4 a5 c3 h5 c2 a6 Qa5 h7 Be7 a7 Qa3 h6 Bg5 Rh4 Qd3 Nf3 Bf4 Ne5 Qc4 Nd3 Be5 Bg5 c1N Re4 Nb3 Qc1 Na6 e3 Nf6 Kd1 Bd7 Ke2 Rad8 a8Q Bc6 Qb8+ Ke7 Qa7 Bc7 d6+ Ke8 d7+ Ke7 d5 Nac5 Re5 Qh4 Re4 Na4 d6+ Kf8 Rg4 Bg2 Rc4 Rc8 d8B Nd7 Re4 Ke8 Bdf6 Rd8 Bd4 Kf8 Rb1 a1B Bb6 Bd4 Ra1 Nf6 d7 Ke7 Ra2 Kd6 Ra3 Kd5 Ra1 Rc8 d8Q+ Nd7 Qf6 Rhd8 h8Q Ra8 Qh7 Rh8 Qg8 Rd8 h7 Qh3 Rh4 Qh1 Rh2 Ke4 Qfg7 Kf5 Qe5+ Kg4 Qf6 Bc5 Qfb2 Bd4 Rh4+ Kg3 Re4 Qh2 Qg7 Rhf8 h8R Qh6 Rh7 Rh8 Qg8 Qg7 Rh5 Rh6 Rh1 Qh7 Rd1 Rh1 Rd2
KNR1rk2/3QN1B1/n1Q2PQ1/1B1B4/PP2bBq1/pp1q1n2/2b1p3/2r2b2 b - - 0 1 illegal: No proof kernel
nrq1N2K/1q1b1p1P/N2rQ3/5Q2/1pB1bNP1/6kQ/1PnRR1p1/1rN5 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 a5 Bc5 Na3 Be3 Nb1 Bb6 axb6 h5 d3 g5 Qc2 g4 Qc3 h4 Qg7 g3 Be3 Qd6 Bf2 Qd8 Bxg3 Bf5 Bf2 Bd7 g4 Bc8 Bg3 hxg3 Kd2 Ke7 Kc3 Kd6 Kd4 a5 h4 c6 e4 a4 b7 b4 h5 f3 h6 f2 h7 g2 e5+ Kd7 d6 Ke6 d7 a3 Nd2 a2 Ne2 Ra7 Qh6+ Nf6 Qh3 Na6 b8N Qc7 d8Q Bb7 Nb3 Nd5 Re1 a1R Qg5 Rb1 Nbc1 c5+ Ke4 c4 d4 c3 Qf5+ Ke7 e6 Kd6 e7 c2 Rg1 Ne3+ d5 Bc6 Rd1 Qb7 Nf4 Bd7 Bc4 f1B Rd2 Nc7 Na6 Na8 Rh1 Be2 Re1 Bd3+ Kd4 Be4 Ree2 Rb8 e8N+ Ke7 Na2 c1Q Ke5 Nc2 Qe6+ Kd8 Kf6 Kc8 Kg7 Kd8 Nac7 Ra6 Kh8 Rd6 Qf5 Ke7 Na6 Qg1 Nc1 Qc5 Qg6 Qcc7 Qf5 Qcc8 Kg8 Rc6 Kh8 Be6 d6+ Kd7 Nd5 Rb6 Qg5 B6f5 Qgh5 Ke6 d7 Ke5 d8Q Rf6 Qd7 Rd6 Nb6 Kf4 Qg6 Bc6 Qde6 Bd7 Qgh5 Bg6 Qb5 Be4 Nd5+ Kg5 Qe3+ Kh4 Nf4 Bdc6 Qbf5 Bd7 Qg1 Kg3 Qh1 Na1 Qhh6 Nc2 Qh3#
B2b3R/Pr4Nq/1nR1B2B/3RkPQ1/7b/pr3p1p/2b1PnBq/2K2Q2 b - - 0 1 illegal: No proof kernel
3Q4/PK4pb/R5RR/Q3B1b1/1Pq2b2/Pn4pQ/R1pN3r/1kN1r1qn b - - 0 1 legal: proof: g4 a5 b4 d5 bxa5 f5 e4 b5 exf5 h5 c3 hxg4 Bc4 b4 cxb4 dxc4 Ke2 Kd7 Ke3 Kc6 Ke4 Kb5 f4 e5 d4 c5 h4 g3 d5 c3 f6 Kc4 a3 c2 d6 Kb3 Kd5 c4 h5 c3 f5 e4 h6 e3 d7 e2 a6 e1Q f7 Qf6 d8Q Qf2 h7 Nc6 a7 Bd6 f8R Qh4 f6 Na5 f7 Nh6 Ne2 Bf4 Bb2 Ng4 Ra2 Bf5 Qd3 c1B Qa6 Kc2 Nd2 Nb3 Kc6 Bg6 Qaa5 Qg1 Kb7 Nf2 Rh2 Qg4 Rh6 Nh1 Re8 Qe6 f8R Qc4 Re6 Rc8 Rfe8 Rc6 Rf6 Re6 Ref8 Re5 Ra6 Bg5 Rff6 Bf4 Nf1 Kb1 Rfb6 Bf5 Rbg6 c2 Ba1 Bcd2 Nc1 Re1 Be5 Bg5 Qb8 Bdf4 Qbd8 Re8 h8Q Rg8 Qh7 Rh8 Rge6 Bd3 Rhg6 Bf5 Qh3 Rh5 Rh6 Bh7 Reg6 Rh4 Qhd7 Rh2 Q7c8 Rhe2 Qh3 Rh2 Nd2+
n2Q1QN1/6R1/1B3B2/r2p2n1/P1bqNK2/P4p2/1Nn2pP1/QkrN1nb1 b - - 0 1 illegal: No possible last move
B3rQ2/r1Qp2Bq/n1n1BKPp/1rP4B/b2P4/1b3kN1/r2Q3p/3N3R b - - 0 1 illegal: No possible last move
1R3RQ1/Q3rq2/5b2/1p1PP1Rn/P5Kn/1q1bB1np/NkQNp3/3q2R1 b - - 0 1 legal: proof: d4 a5 h4 d5 b4 axb4 c4 g5 hxg5 e5 dxe5 Kd7 Qd4 Ke7 Qd1 Ke8 e4 b5 e6 f5 e5 d4 Bd3 Ra6 Bc2 Rd6 Be4 Rd5 cxd5 fxe4 Ke2 h5 a4 c5 f4 b3 g4 c4 e7 Kd7 e8R b2 g6 d3+ Kf2 d2 Kg3 c3 f5 e3 g7 c2 g5 h4+ Kf4 h3 f6 Kc7 g6 Kb6 f7 Ka5 Re7 Kb4 Qe2 Kb3 Re6 d1Q Ra6 Nc6 Nf3 Qd7 Ng1 Nd4 Nf3 Nf5 Ra8 Be7 f8Q Rh7 Nc3 b1Q Rb8 Nf6 g8Q Nh5+ Kg4 Bf6 g7 Qf7 Qe7 Nh4+ Qd7 Qb2 Rf1 Qa2 Bd2 c1N Qh2 Qb1 Na2 Ne2 Bc1 Kc2 Nd2 Qb3 Rf5 Neg3+ Qe2 Bb7 Rg5 Bc6 Qa7 Be8 Qf3 e2 Qf5+ Ne4 Nf1 Bd7 Be3 Kb2 Nd2 Neg3 Rc1 Be8 Qd3 Qb7 Rcc8 Bg6 Rf8 Qf7 Qc2+ Ka3 Qh8 Qe8 g8R Nh1 Rf5 Re7 Rf1 Bd3 Rg5 N1g3 Rg1 Qf7 Qcc7 Kb2 Qg8 Bb1 Qc8 Bd3 Qc2+
R4B1Q/b2n1Qpp/rNB5/Q6q/R1qP1qr1/P3kP2/2p4R/bb2K2R b - - 0 1 illegal: No proof kernel
4qn2/Rq2p3/n1Q1NpNK/n3Q3/k1b1q1pP/2PB4/1r2r1RP/1RQ4R b - - 0 1 legal: proof: e4 c5 a4 d5 f4 dxe4 b4 g5 g3 h5 a5 b6 Ba3 h4 gxh4 g4 axb6 Bg7 b5 Bh6 Bb4 Bg5 fxg5 cxb4 Ke2 Kd7 Ke3 a5 Kf4 e3 d4 b3 c3 e2 b7 e1Q d5 b2 g6 a4 Kg5 a3 d6 a2 b6 Kc6 d7 Qf2 g7 Qg3 Nf3 Qgc7 Na3 b1Q Nc4 Kb5 Bd3 Na6 b8Q Nf6 g8Q Qb7 Qe8 Nh7+ Kh6 f6 Qc1 Ka4 Nd4 Rg8 Qg3 Nf8 Ne6 Rg5 Qge3 Rb5 Ne5 Rb2 Ng6 Re2 Qg5 Rb8 Qe5 Qb4 Rb1 a1N Rb2 Q7e4 b7 Nb3 Rd2 Qb5 Rc2 Qdb6 d8R Na5 Qc6 Bd7 Rc8 Be8 Rc7 Bf7 Rd7 Qd8 Rd2 Qe8 Rc7 Re3 Rg2 Re2 Nd8 Bc4 Ne6 Ra8 b8R Ra7 Rb6 Rb7 Rd7 Rb8 Ra7 Rb7 Qcc7 Qbc6 Rb1 Rbb2 Qcd6 Qb7 Qc6+
kq2N3/NPr1r1PK/2nN4/3P1R1b/4p3/1rqB1R1p/Rp5Q/n2RQ1q1 b - - 0 1 legal: proof: h4 a5 b4 f5 e4 b5 exf5 g5 c3 gxh4 Ba3 d6 Qb3 Bg7 bxa5 b4 Qd1 b3 Bc5 Bd4 Ba7 Bc5 Bb6 Bb4 Bc5 dxc5 cxb4 Qd5 Bc4 Qd6 Bf1 Qd8 Ke2 Kd7 Kf3 Kc6 Kf4 Kb7 Kg5 e5+ f6 h5 Kg6 h3 d4 h4 f4 h2 a4 c6 g4 b2 f5 e4 b5 c4 g5 c3 a6+ Ka7 d5 h3 f7 c2 f8R c1Q a5 c5 f6 c4 f7 c3 Nf3 c2 Nc3 Qe8 Nh4 Bg4 Ra2 Bd7 Bd3 Nh6 Nf5 Bc6 Nd6 Nd7 b6+ Kb8 Qd2 Qd8 Rd1 h1Q Qf4 Qg2 Qh2 Ne5+ Kg7 Nhg4 g6 Rh4 Kg8 Rh6 g7 Re6 Nc4 Rg6 Nb5 Re6 a7+ Kb7 Kh8 Qg1 Kh7 Rc8 a8N Ne3 Nac7 Be8 Ncd6+ Kb8 Rg8 Re7 f8R Bh5 Nce8 Rcc7 Rf3 Nc6 Rgf8 Qd2 R8f6 c1R R6f5 Nc2 Be2 Na1 a6 Ka8 a7 Qb8 Bd3 Qc2 Nc4 Kb7 a8Q+ Kc8 Qa3 Kb7 Na7 Ka8 Qb4 Qb3 Qe1 Rc3 Ncd6 Qc4 Rb1 Rb3 Rd1 Qc3 b7+
1RQ2N2/P3QQ2/q4B1q/rrn1Rb1n/3K3p/pPr2R2/3NPk1p/Q1n5 b - - 0 1 illegal: No proof kernel
5rrn/5B1N/n1K2Rr1/PB3k2/P1P1N1pp/1nQ1b3/5pb1/1B2QbBN b - - 0 1 legal: proof: f4 a5 g4 f5 gxf5 c5 d4 cxd4 b4 e5 bxa5 Ke7 f6+ Kf7 f5 Ke8 a4 g5 h4 g4 Ra3 Qe7 Rf3 Qg7 Rf4 Qg5 hxg5 exf4 Kd2 Kf7 Kd3 b5 Ke4 d5+ Ke5 h5 e4 h4 c4 b4 Nh3 d3 Nf2 d2 Qe1 d1B Bd3 f3 Be3 d4 Kd5 b3 e5 b2 Nc3 b1N Rf1 Bh6 Nh1 Na6 Bg1 Be2 Ne4 Nd2 Bb1 d3 Kc6 Nb3 Qc3 d2 e6+ Kf8 f7 Ke7 f8N d1R g6 Be3 g7 Nh6 g8B Nf7 Rf2 Bf1 Nh7 Rd8 Qe1 Rf8 Qc3 Nd6 Bf7 Rhg8 Qe1 Rg6 f6+ Kd8 Bg8 Nf7 e7+ Ke8 Qc3 Nh8 Bd5 Be6 Qe1 Kf7 e8B+ Kg8 f7+ Kg7 Bd7 Kh6 Qc3 Rfg8 f8Q+ Kh5 Qff6 Raf8 Qe1 Bf7 Rd2 f2 Be8 Be6 Qc3 Bf5+ Be6 Kh6 Rd6 Kh5 Neg5 Be4+ Bd5 Beg2 Ne4 Kh6 Bd7 Rgf6 Re6 Kg6 Be8+ Kf5 Rd6 Nd2 Bdf7 Rfg6 Re6 Nb3 Rd6 Bd4 Rf6+ Ke5 Bd7 Be2 Kb7 Bef1 Qb4 Be3 Bb5 Nc1 Kc6 Nb3 Rd6 Kf4 Qbc3 Kf5 Rf6+
4N2n/1pnr1r2/b1bB2NQ/PNb1Q1BK/2RpP3/p2k4/P2B4/1N2rn2 b - - 0 1 legal: proof: g4 a5 d4 f5 b4 h5 gxh5 c5 Kd2 e5 Na3 a4 dxc5 f4 e3 f3 Be2 Qa5 bxa5 fxe2 Rb1 Ra6 Rb4 Ra8 Rd4 exd4 h4 Kf7 c4 Ke6 f4 Kf5 e4+ Ke6 c6 e1R f5+ Ke5 c7 g5 f6 d5 h6 d3 f7 Kd4 c5 g4 c6 g3 h5 g2 h7 Na6 h6 Re3 Nb5+ Kc4 Qh5 d4 Qe5 a3 Ne2 g1N Nec3 Bd7 c8N Bg4 c7 Be2 Ne7 Re8 c8N Rd8 Nb1 Rd7 Ng6 Bc5 f8B Nc7 Bd6 Ne7 Ke1 d2+ Kf2 d1B Bd2 Re8 h8Q Nf3 Kg3 Rf8 Kg4 Ba4 h7 Kd3 Rc1 Rf7 Rc4 Nh2+ Kh4 Bf1 Kh5 Re2 Qf8 Re1 h8B Be2+ Kg5 Nf1 Qh6 Bad1 Bf6 Ba4 N5c3 Bc6 Nb5 Bf3 Kh4 Bg4 Bfg5 Be6 Nf8 Ng6+ Kh5 Nh8 Ng6 Bh3 Bde7 Bg2 Ncd6 Bh3 Ne8 Be6 Rb4 Bb3 Bd6 Bc4 Na7 B4b5 Rc4 Ba6 Nb5
3k2NN/3bp1P1/1p1n2nn/6bb/1KNP1RRB/PNQ3bp/4Q3/5Rqr b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 f5 exf5 d5 c4 g6 cxd5 Nh6 f6 Ng8 f7+ Kd7 h4 Bg7 f5 Qf8 f6 Qd8 Bd3 Bf8 Bf5+ gxf5 g4 Na6 g5 Nb8 g6 Ra3 Rh3 Rg3 Rh1 Rg5 hxg5 Bg7 Ba3 Bh6 Bc1 Bf8 d4 c5 Kd2 h5 g7 h4 g6 b3 Kc3 f4 a3 b6 d6 f3 Bh6 b2 Qc1 f2 Be3 f1N Nf3 c4 Bg1 Nh6 g8N Ne3 Nbd2 b1B Kb4 c3 Nb3 c2 Nfd2 Bg7 f8R Nef5 f7 Be5 Bf2 Bg3 Rf1 Qe8 g7 Kd8 d7 Nd6 Qd1 c1B Qe2 Bg6 Nc4 Bg5 Rg1 Bh5 Raf1 Bh2 Rg4 Nc6+ Kc3 Ne5 Kb4 Ng6 Be1 Kc7 d8N Bd7 Rff4 h3 Bh4 Bg3 Nc6 Qa8 N6e5 Qg2 Rf1 Nf4 Ng6 Qg1 Nf6 Rg8 Nh8 Ng6 Rb8 Rf8 Ng8 Rd8 f8Q Rc8 Qff3 Kd8 Qc6 Qe3 Ra8 Qg1 Ra5 Rc7 Qcf3 Rc5 Qc3 Rf5 Rd5 Rf2 Ra5 Rh2 Raf5 Rh1 R5f4
5B1K/1rQ1Rp2/P3Pp1k/2QR1Q1N/1n1n1n2/2R1pP2/Nq3nqr/1bR5 b - - 0 1 legal: proof: g4 a5 b4 h5 gxh5 d5 a4 Nf6 d4 Ne4 Bg2 Ng5 e4 Bh3 e5 Bg4 Be4 dxe4 bxa5 Bc8 Ra3 Nh7 Rf3 Nf6 d5 Ng8 Rf6 exf6 c3 Be7 Ba3 Bc5 Bc1 Bd4 cxd4 Qd7 Be3 Qd6 Bc1 Qd8 Ke2 Kf8 h4 b5 h6 c5 e6 g5 h5 b4 h7 Kg7 h6+ Kg6 d6 c4 d7 g4 d5 e3 d6 g3 Kf3 b3 Kg4 g2 f3 b2 Nh3 g1N Qd4 Qb6 d8R c3 d7 c2 Nc3 b1N Na2 Qc5 Ba3 c1Q Qe5 Qb6 Bf8 Ne7 Qc5 Rg8 h8Q Qb5 h7 Na6 Kh4 Nd5 Nf4+ Kf5 Kh5 Qd1 Kh6 Qde2 Re8 Nc7 d8Q Qh2+ Nh5 Na6 Qdc7 Nh3 Re7 Nd2 Rc1 Rg2 Qg8 Rb8 h8R Qb4 Kh7 Nf2 Qgg3 Rb6 Qh3+ Kg5 Ng7 Qb2 Kg8 Nb3 Rh5+ Kg6 Kh8 Nf4 Rd5 Qg1 Qf5+ Kh6 Qb4 Bd7 Qbc5 Nb4 a6 Rg4 a5 Rb7 a7 Bc6 a8R Qg2 Rd3 Rh4 Rad8 Be4 a6 Rh2 Rdc3 Nd4 Rd5 Bb1 Nh5+
1BnKQ1r1/1R1P3n/3Bq1b1/2Nrp3/1B2pP1Q/pQ5q/3Pk2R/3r1B1r b - - 0 1 legal: proof: c4 b5 f4 f5 a4 h5 axb5 e6 g4 hxg4 Nc3 Kf7 Ne4 d5 cxd5 Bd6 e3 fxe4 f5 Bf4 exf4 Ke8 Ke2 Kf7 Ke3 Kf6 Kd4 a5 Kc5 g5 b4 e5 h4 g3 b6 g4 b5 a4 d6 g2 h5 g3 b7 Ra5 h6 Qe8 h7 Nc6 b8Q Na7 Ne2 g1Q+ Nd4 g2 Rb1 Qe3 Ba3 g1R Rb4 c6 Kb6 c5 Kc7 c4 b6 c3 b7 c2 Ne6 c1R+ Qc2 Ra1 Qb3 Rd5 Rh3 Rh1 Bg2 Qd3 Rh2 Qh3 Rb5 Bd7 Bb4 a3 Nc5 Rad1 Qc8 Qf7 b8B Be8+ d7 Qe6 Rb7 Bg6 Qe8 Nc8 Kd8 Nh6 Rb6 Rg8 Rb5 Ng4 Rb7 Kg7 f6+ Kh6 f7 Kh5 f8B Nf6 h8Q+ Kg4 Qh6 Nh7 Bfd6 Rhf1 Qc2 Rh1 Qa4 Kg3 Qb3+ Kf2 Qh4+ Ke2 Bf1+
knBQ2n1/2P1Nn2/1Q3p2/Qb2PPBK/2nR4/2r1p1p1/1bRB1r2/n1B5 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 Rh7 gxh5 Nc6 b6 Ba6 b5 Nb8 Nc3 Bc8 Na2 Rh8 d4 e5 e4 d5 Nb4 cxb4 Ra5 Qg5 Ra4 dxe4 Ra1 e3 Bh3 e4 Bf1 Qe5 dxe5 Bh3 Ra6 Bf5 Ra1 Bc8 Ke2 g5 h4 a5 f4 a4 c4 g4 c5 b3 c6 a3 b7 a2 h6 b2 c7 b1N f5 g3 h5 Ra6 h7 Ra3 b6 Nh6 Rh4 Rg8 h8B Rg6 Qd2 Ke7 Nh3 Ng8 h6 Bd7 h7 Rc6 Nf4 Rg6 Bg7 Rc3 h8B Rg4 Bh6 Na3 Bf6+ Ke8 Rb1 a1N Ng6 Nc4 Bfg5 f6 Rb2 Rf4 Rc2 Ba3 Ne7 Bb2 Qd5 Ba4 Qa5 Kd7 Bd2 Bb5 Bg2 Na6 b8Q Rf3 Qa7 Nb8 b7 Rf1 Q7b6 Rf2+ Ke1 e2 Bc1 Na3 Kd2 e1N+ Kd1 Na6 b8Q Nc4 Bgd2 e3 Bb7 Nf3 Bg5 Nh2 Ke1 Ng4 Qa8 Nb8 Bc8+ Ke8 Qd5 N4h6 Qd3 Nf7 Rd4 Rh2 Kf1 Rf2+ Kg1 Rf4 Kg2 Rf2+ Kh3 Na3 Ba6 Nc4 Nd5 Kd7 Kg4 Re2 Kh5 Rg2 Qb4 Rf2 Q6a5 Kc6 Bc8 Ba3 Qb1 Bb2 Ne7+ Kc5 Qa8 Kb6 Qd5 Ka7 Qd8 Ra3 Qc3 Ka8 Qb4 Rb3 Qc5 Rc3 Qb6 Ba3 Qb4 Bb2 Q4a5+
2BB2N1/5n2/NPp2qk1/3qn2Q/2r4q/B2p1pPq/3P2qB/RK3bNQ b - - 0 1 legal: proof: c4 b5 f4 a5 a4 e5 axb5 exf4 b4 Bb7 b6 Nc6 b5 Bc8 b7 Nb8 b6 Qf6 Ra2 Qg5 Ra1 Qd8 g3 g5 Bb2 a4 Bc1 Ra5 Ra3 Rb5 cxb5 Bc5 Rc3 Be7 Rc4 Bd6 g4 f3 Rb4 Bg3+ hxg3 Ke7 Rd4 Ke8 Rf4 gxf4 e4 f5 g5 Kf7 e5 d5 e6+ Kg6 e7 h5 e8N c6 Rh4 a3 Nf6 d4 Bh3 a2 Na3 a1Q Nc2 d3 Nb4 Qd5 Ba3 Nd7 b8B Ne5 b7 Nh6 Ba7 Nhf7 b8B Qb2 Qc1 f2+ Kd1 f3 Ng8 f4 Na6 Qb4 Rg4 h4 Bc7 Qbd6 Bcb6 Qf6 Bd8 Bf5 Qb1 Bd7 Kc1 f1Q+ Kb2 f2 B7c5 f3 b6 Rh5 Ra4 Qg2 Qa1 Rh8 Kb1 Rh5 Bg4 h3 Be6 h2 Be3 Be8 Bc8 h1Q Bec5 Qh4 Bd4 Kg7 g6 Bd7 Bdc5 Bh3 Be3 Kh8 g7+ Kh7 Ne2 f1Q+ Kb2 Qa5 Nh6 Qh2 Bae7 Rg5 Bg1 Qhf2 Bh2 Kg6 g8Q+ Kh5 Qh8 Qd5 Ng8+ Kg6 Qd1 Q2g1 Kb1 Rg4 Ra1 Rc4 Bd6 Bg2 Ba3 Qh1 Bg1 Q1h3 Bh2 Qf2 Qh1 Bf1 Ng1 Qfg2 Qh5+
2QB2B1/2K3Pp/p1Q1Pb2/p1N1rQ2/1Rk3rP/r2r1q1b/rB2Qb1R/8 b - - 0 1 legal: proof: c4 e5 a4 d5 d4 b6 a5 bxa5 Nd2 Ba6 Ndf3 Kd7 cxd5 Ke7 d6+ Ke8 d5 Bc8 Nd4 exd4 f3 g5 Qd2 Nd7 Qd1 Ndf6 f4 g4 Nf3 Ne4 Ng1 Ng5 fxg5 Ba6 Bf4 Bb7 Bc1 Bc8 g3 f5 Ra3 f4 Bd2 f3 Bc1 Ne7 Ra4 Ng6 Ra1 Nf4 gxf4 Qd7 Bd2 Qe7 Bc1 Qd8 Kd2 Kf7 Kd3 c5 Kc4 g3 Kb5 a6+ Kc6 f2 b4 c4 h4 c3 e4 c2 b5 g2 d7 d3 d6 Ke6 g6 d2 e5 Rg8 g7 Rh8 f5+ Kf7 b6 Qe7 d8Q Rb8 b7 Be6 f6 Bh3 d7 Ke6 f7 Qf6 Rb1 Bc5 f8Q Qf3+ Kc7 Kd5 Ne2 g1R Rh2 Rg4 Qf5 Kc4 Qc8 Re8 Bb2 c1B d8B Be7 Bg2 f1R Nc3 Rf2 Na4 Bf6 Nc5 Re6 Qe1 d1R Qe2+ Rd3 Qd7 Be3 Qc6 Rf1 Bh1 Bf2 Bg2 Rc1 Bf1 Rc3 Bg2 Ra8 b8Q Ra3 Qc8 Rb8 Bh1 Ra2 Bg2 Rb3 Bf1 Qg3 Bg2 Rba3 Bd5+ Kb4 Bb3 Qf3 Bd5 Rd6 Bg8 R6d5 e6 Re5 Bc1+ Kc3 Rb3+ Kd4 Bb2+ Kc4 Rb4+
4b3/2pR1n2/QbP2rB1/1p1P3N/QPnp4/1Q2Qb1R/2b1n1nN/R2k1K2 b - - 1 2 legal: proof: h4 g5 e4 gxh4 b3 f5 exf5 a5 Ne2 a4 Ng1 a3 c4 d5 Bb2 axb2 Qe2 d4 Qg4 Ra3 Qd1 Ra8 d3 Qd5 cxd5 b5 Nh3 Ra4 Ng1 Rc4 dxc4 Ba6 Qd3 Bb7 Qd1 Bc8 g4 Kd7 a4 Kd6 f4 Kc5 g5 Kb4 g6 e5 f6 h5 f5 e4 c5 e3 f7 e2 c6 h3 f6 h2 g7 h4 a5 h3 a6 Bg4 a7 Nh6 a8Q Bd7 g8R Bc5 f8Q Nf7 Nc3 b1B Qe8 Rh6 Rg7 Bb6 Qe3 Be8 Ne4 Bc2 Ng3 Nd7 Nh5 Nde5 Nf3 Nc4 Qa6 Rg6 Kf2 e1N Bd3 Kc3 b4 Ng2 Kf1 Rh6 Bg6+ Kb2 Rg1 h1N Ra3 h2 Ra1 Nf4 Rg3 Ng2 Rh3 Ng3+ Kf2 h1B Nh2 Be4 Qda4 Ne2 Kf1 Bc2 Rh7 Nfd6 Rd7 Nf7 Ra3 Kb1 Qeb3+ Kc1 Ra2 Nfd6 f7 Kd1 f8Q Nf7 Ra3 Ncd6 Qe7 Nc4 Bf5 Rf6 Qee3 Ne1 Ra2 Bf3 Bg6 Ng2 Ra1+
2r5/R2BN1Q1/8/RKP2b2/1QQ1Q3/r2pppp1/bNP1b1qP/kNn4n b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 dxc5 g5 fxg5 d5 e3 d4 g4 h6 g6 d3 g5 Bg7 Bd2 Bf6 g7 Qb6 g6 Bd4 exd4 Qd8 Bg5 hxg5 Kd2 Kd7 a4 Kc6 a5 Kd5 a6 Kc4 a7 b5 d5 e5 d6 f5 d7 b3 Ra6 g4 Qe2 b2 Nf3 b4 Re6 b3 Bh3 e4 Nh4 e3+ Ke1 f4 Qg2 g3 Nf5 Nf6 g8Q Na6 g7 Nb4 Kd1 Ne4 Ne7 Na2 Ra6+ Kb4 Rg1 Nc1 Ra5 Qf8 d8N Bf5 Nf7 Rc8 a8Q Nf2+ Ke1 Rh7 Ne5 Nh1 Nc4 Qf6 Qa7 Qc6 Qe4 Bg4 Qd8 Be2 g8Q Qa8 Bd7 Rh4 Qd4 Qg2 Qde8 f3 Qgg7 Rh6 Qb7+ Rb6 Qbe4 Ra6 Qeg8 Ra7 Nba3 b1B Qb2 Bf1 Kd1 Ba2 Qbd4 b2 Qgd5 b1B Nb2+ Bc4 Qdf7 Ba2 Nb1 Nb3 Qfg8 Nd2 Kc1 Be2 Nd1 Nb3+ Kb2 Nc1 Q8f7 Ra6 Rf1 Rd6 Ra7 Ra6 Qfe6 Ka5 Kc3 Bd5 Q6g4 Be6 Nb2 Bf5 Qdd5 Bc4 Kd4 Kb4 Qgf4 Ra3 Qdg8 Bb5 Kd5+ Bc4+ Kd6 Re8 Kc6 Rc8+ Kb6 Rc3 Qb8 Na2 Nd2 Rb3 Ra1 Nc1 R1a5 Rc3 Na4 Ka3 Nb1+ Ka2 Nb2+ Ra3 Qbb7 Bb3 Qgc4 Ka1 Ka6 Ba2 Qbb4 Bd1 Kb6 Be2 Kb5
R1nQRbB1/6pp/Kb3r2/N5pn/6N1/kr2P2N/2pP2PR/QR1b2q1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 b3 f6 Ba3 Qd7 Bc5 Qh3 Be3 Qxh2 Bg5 fxg5 e3 Ke7 Ke2 a5 Kd3 c5 Kc4 a4 b6 a3 Kb5 c4 e6 Kd6 b7 c3 e7 c2 e8N+ Ke7 b4 a2 d6+ Kd7 Na3 Ke6 d7 Kd5 d8Q+ Nd7 b8R Ra6 Nh3 Qg1 Rb1 a1B Rh2 Bd4 Ra8 Nf6 Nc4 Bb6 Na5 Nh5 Nf6+ Kd6 Qc1 Bb7 Ng4 Bf3 Qa3 Bd1 Qa1 Rg8 Bc4 Rh8 Nb3 Ra3 Na5 Rb3 Ka6 Rg8 b5 Kc5 Qe5+ Kb4 Bf7 Rh8 Bg8 Ka3 Qc3 Ne5 Qcd4 Nc6 Qe5 Na7 Qc3 Bc7 b6 Nc8 b7 Bb6 b8R Bfc5 Bc4 Rf8 Bg8 Rf6 Qa1+ Kb4 Rb7 Bf8 Rba7 Rf3 Re7 Rf6 Qb2 Ka4 Re8 Kb4 Qc3+ Ka3 Qa1+
r7/k2pP1pn/1pQ5/R1R1Q1B1/1R1n1N2/P1Npb1P1/2q1Q1b1/K1R1nr2 b - - 0 1 legal: proof: d4 a5 b4 axb4 f4 h5 d5 e5 fxe5 h4 d6 h3 Nxh3 c6 Ng5 Ra6 Nh7 Ra8 c4 b6 e3 Ra6 c5 Ra4 Bc4 Ra6 Bd5 cxd5 c6 Qc7 dxc7 Bb7 c8R+ Ke7 c7 Ra8 Rg1 Ba6 Rf1 Nc6 Rh1 Nb8 Kd2 f5 Kc2 f4 Kb2 d4 h4 d3 e6 Kd6 a3 Kc5 h5 b3 e7 f3 e8Q f2 h6 f1Q e4 Nc6 g3 Bb7 e5 Na7 e6 Bc6 Qe2 Qf2 Rh4 Kb5 Nc3+ Ka6 Bg5 Nf6 Rc1 Nb5 Rb4 Bc5 Ka1 Be3 Nf8 Bg2 h7 Ka7 Ng6 Rf8 h8R Nd4 Rh5 Nh7 Nf4 Rf6 e7 Rf5 Qg6 Rf6 Qf5 b2+ Ka2 b1N Qe5 Nd2 Ka1 Ne4 Rf8 Nd2 c8Q Rf7 Qc6 N2f3 Rc8 Ne1 Qg6 Qf3 Rc5 Qd5 Qc6 Qb3 Rh1 Qc2 Rcb1 Nef3 Rhc1 Ne1 Rbb5 Rf6 R1b4 Rf7 Nh5 Rf3 Nf4 Rf1 Ra5+
1b2n1NR/kPB4r/pR1Q2p1/N6p/n2QP2q/rP3p2/2b4Q/q4NQK b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Nf6 g6 Ke7 g7 Qd6 g8N+ Kd8 g5 Ke8 g6 Bg7 Bh3 Qd7 Bf5 Bf8 g7 Qd8 Bg6 fxg6 Kf2 Kd7 Kg2 c5 d4 Kc7 e4 Kb6 d6 c4 d7 a6 d5 h6 d6 c3 Nf3 c2 Nd4 Rh7 Nd2 Rh8 Qg1 Qc7 d8Q Be7 d7 Ne8 Nf1 Bd6 Ne7 Ra7 g8Q Bb7 Rh3 Bd5 Rb1 Bb3 Kh1 f3 Qf8 Rb7 Bf4 c1Q Ng8 Ka7 Qh4 Bc2 d8Q Nd7 Nb3+ Nc5 Na5 Qe7 Be5 Bc7 Qdd4 Bb8 Bc7 Rb6 Qhf4 Na4 Qfh2 Qe1 Rh5 Q7h4 Qfd6 Qc3 Rf5 Qa3 Rf7 h5 Rh7 Qa1 Rh6 Ka8 Rh7 Rc6 b6 Rc3 Rh6 Ra3 Rh7 Nc5 b7+ Ka7 b3 Bd3 Rc1 Bb1 Rc4 Bd3 Rb4 Bc2 Rb6 Na4 Rh6 Rh7 Q4e5 Rd7 Rh8 Rh7 Qed4
4n3/B2RPrQ1/3kr1B1/3N3n/KRp1q3/BpQP1b2/2pn1BPp/1r2R3 b - - 0 1 legal: proof: c4 a5 f4 e5 b4 d5 e4 g5 h4 b5 hxg5 Bc5 Na3 Bd4 exd5 e4 Nc2 bxc4 b5 Bc3 Nb4 Be5 fxe5 axb4 a4 Ke7 g6 h5 d6+ Kd7 e6+ Ke8 d7+ Ke7 b6 c5 b7 f5 a5 c3 g7 c2 a6 e3 a7 c4 Bd3 f4 Qf3 e2 Rb1 h4 Ba3 h3 Bg6 h2 Nh3 Kd6 e7 Na6 b8B+ Nc7 Qc3 f3 d3 f2+ Kd2 e1R Nf4 Bb7 Nd5 Nf6 g8Q Re6 Rhe1 Nh5 Qgg7 f1N+ Kc1 Rf8 Kb2 Qc8 d8B Rf7 Ka2 Nd2 Rb3 Kc5 Rbb1 Ne8 Bb6+ Kc6 Bg3 Qd8 Bgf2 Rb8 a8R Kd6 Ba7 Qb6 Rb3 Qd4 Rb2 Bc6 Rbb1 Rb5 Rb8 Ba8 Rb7 Qe4 Rd7+ Kc6 Nc7 Qe3 Bb2 Rb6 Bc1 Kc5 Rb3 Bf3 Nd5 Kc6 Ra3 Qe4 Ra4 Ra6 Kb2 b3 Rb4 Ra3 Bg1 Ra1 Bgf2 Rb1+ Ka3 Nf4 Ka4 Nh5 Rc7+ Kd6 Ba3 Rff6 Rcb7 Rf7 Rd7+
R1q2Qr1/R3p3/1knP2p1/RR2Q1b1/P1p1n3/p1BQ2N1/nb4P1/N1n1K3 b - - 0 1 illegal: No proof kernel
2N1r2k/2r1pQ2/2r2nr1/1R1Bnp1p/pb1QR2P/1P1N1N2/4KP1R/b3N3 b - - 0 1 legal: proof: Nf3 b5 Nc3 c5 Nb1 b4 Ng1 b3 axb3 c4 Ra5 c3 Ra2 Qa5 Ra1 Qd8 g4 cxb2 g5 f5 Ra5 Qb6 Ra1 Qf6 gxf6 Bb7 Ra2 Ba6 Ra1 Bc8 c4 d6 d4 Ba6 e4 Nc6 d5 Kd8 c5 Nb4 c6 Bc4 Be3 Ke8 Bc5 dxc5 d6 Bd5 exd5 Na6 Qf3 Nb8 Qg4 Kf7 Qd1 Ke8 h4 Kf7 d7 a5 d8Q g5 d6 h5 c7 c4 c8N c3 d7 a4 Qe2 c2 Qf3 c1B Na3 b1R Ke2 g4 Bg2 g3 Nc2 Nc6 Rh2 Ne5 Ne1 Rh6 Qd5+ Kg6 f7 Kh7 Ngf3 Kh8 Qe6 Bg7 f8R Ba3 Qf7 Rc6 Qb6 Bd6 d8N Rbc1 Ne6 Bb4 Qd4 Rb8 Bh1 g2 Nc5 g1R Ncd3 Rgg6 Rd8 Rc7 Rd5 Nf6 Rb5 R1c6 Rc1 Ra8 Rc4 Rb8 Na7 Re8 Nc8 Rb6 Nd2 Rbc6 Bd5 Bh6 Ndf3 Bc1 Qf4 Bb2 Re4 Bd4 Qe3 Ba1 Qd4
1B1B1Rb1/Q1p1qp2/p2q1R2/2P1n3/2nQB3/RP6/P2pB2n/1K1knrN1 b - - 0 2 legal: proof: d4 e5 dxe5 b5 f4 a6 c4 h6 h4 Bc5 g4 Rh7 Na3 Bf8 c5 Bd6 Nc4 bxc4 Qa4 Be7 Qd1 Bg5 fxg5 hxg5 Nf3 Rh5 gxh5 Ra7 Ng1 Rb7 Be3 Rb6 Bf4 Rh6 Bc1 Rh8 Nh3 Ke7 Kd2 Ke6 Kc2 Kf5 b3 Kg4 h6 d5 h7 c3 e6 d4 h5 Qd6 e7 Nd7 e8B Nh6 Qd3 Nf5 Bd2 Ne3+ Kc1 c2 Ba5 Bb7 Bb6 Be4 Ba7 g6 Qc3 d3 Bb8 d2+ Kb2 Rg8 h8B c1N Bf6 Bb1 Bd8 Nd3+ Ka3 Kg3 Qb2 Rh8 h6 g4 h7 g5 Rh2 Rg8 h8R Rg6 Qg7 Rf6 Rf8 Bc2 Re1 Rf2 Bg2 Rf1 Bd5 Bb1 Rf2 Bc2 Rc1 Ne1 Kb2 Bh7 Qd4 Bg8 Rf3+ Kg2 Kb1 g3 Rc4 g4 Bc6 Nd1 e4 Ne3 Nf4+ Kg1 e5 g2 Rf2 g3 Rf3 Rf2 Ne2+ Kf1 Ra4 g1N Ra3 g2 Rf6 Ngf3 Bb5 g1Q Bd3 Nc4 e6 Qd5 e7 Nh2 Rc6 Qg4 Ng1+ Qe2 Re6 Qd6 Rf6 Ndb6 Bc6 Nd7 Bh1 Rf4 Qd5 Kf2 Qb7 Ke3 Qa7 Rf1 Bf3 Kf2 e8Q Qe4 Qe5 Qe3 Qg5 Qee7 Qd5 Nde5 Bfe4+ N1f3+ Kc2 Ke1 Kb1 Kd1 Qd4 Ne1 Be2#
r3N2B/4p2R/1R1p1r1B/1BBn1Pq1/P1pK2k1/1R3p2/2PQ1nn1/Q4nq1 b - - 0 1 illegal: No proof kernel
Q2B1rQ1/k1K1P2B/1ppB1Bn1/1pN2Pp1/2Pn4/3Rq1qb/N5Qp/1b6 b - - 0 1 illegal: No proof kernel
4q3/bp3Q1k/2N1p1pN/K2PNP2/1R1r1q2/b7/pPB2p1Q/QnN2nR1 b - - 0 1 illegal: No proof kernel
3br2N/1P2R1rb/krR1N1Qn/3pq1bB/3N4/n4PNK/qq1Pn1Q1/R7 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ba3 Na6 axb5 Nh6 b6 Nb8 b5 Ng8 Bb4 cxb4 c4 d5 g4 Kd7 f6 h5 c5 e5 g5 a5 g6 e4 g7 b3 b7 Kc7 f7 a4 c6 Kb6 f3 b2 Kf2 h3 Kg3 h2 c7 a3 Qb3 h4+ Kg2 a2 Be2 e3 Bd3 e2 Qc2 e1Q Qc4 Ra7 Bh7 Nc6 b8N Bf5 c8R Be7 f8Q Nd4 Qd3 Ne2 Na6 Bg5 Nc7 Qf6 Nc3 b1N Ne6 Nh6 g8N Na3 Ne4 Rg7 Ng3 Qb2 Bg6 Qeb1 Be8 Bh7 Kh3 Qe5 Qb4 Qbb2 Ne7 Ka7 Bf7 Re8 b6+ Kb7 Qb1 Ka6 Ng6 Bd8 Qc2 Bg5 Re1 a1B b7 Qa2 Qcb1 Bd4 Qd6+ Bb6 Nh8 Qeb2 Qf4 Bbd8 Bh5 Qe5 Qg6 Qeb2 Kg2 Qe5 Qg4 h3+ Kf2 Qab2 Rc6+ Ka5 Nf4 Nf7 Qe4 Qe7 Rcc1 Ka6 Qd7 Nd4 Bg4 Rg6 N1e2 Rg7 Rhg1 h1Q Rc7 Nb3 Nd4 h2 Qb1 Qd6 Re7 Nc1 Qdf5 Ne2 Qf1 Qe6 Qh3 Qf6 Ra1 Qhb1 Kg2 Q1a2 Rc8 Qe5 Qb1 h1R Bh5 Qc2 Nfe6 Nh6 Qh2 Qc3 Qg6 Rb1 Rc6+ Rb6 Kh3 Qcb2 Qg2
rn2R3/PK1Q3Q/1B2b3/2NQ1pP1/2k1rbR1/r1n1QPr1/1R1b4/1q1n2Nr b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 Ra5 Rh5 Ra3 Rh1 Ra8 d4 Kd7 e3 e6 d6 Ra5 d5 Ra8 Bc4 Ke8 d7+ Ke7 Bb3 Kd6 Bc4 Kc5 d6 Kc6 Bd5+ exd5 Kd2 Kc5 Kd3 h5 a4 f5 g4 b5 a5 d4 g6 b3 a6 b2 g7 h4 f3 h3 a7 h2 e4 b4 g5 b3 e5 Rh4 e6 Ne7 g8Q Re4 Nh3 Nd5 e7 Nc3 Re1 h1R Nd2 b1R e8R b2 Ra2 Ra1 Qdb3 b1R Rb2 Ra3 Rg1 c6 Qgf7 Qb6 d8Q Be6 d7 Bd6 Qh7 Bf4 Rg4 Rg1 Qc7 Rg3 d8Q Qb4 Qde7+ Kb5 Ng1 c5 Qd1 Rba1 Nb3 c4+ Kc2 Rb1 Be3 d3+ Kd2 Rc1 Nc5 Qb3 Qcd7+ Kb4 Ke1 d2+ Kf2 Rb1 Qd5 Rba1 Qed7 Rc1 Qe2 Rd1 Nh3 Rh1 Ng1 d1N+ Ke1 Na4 Kd2 c3+ Kd3 c2+ Kd2 Nac3 Kd3 Re5 Kd4 c1B Bf2 Bcd2 Qe3 Ka5 Na4+ Ka6 Kc5 Ka5 Kd6+ Kb4 Kc7 Re4+ Kb7 Rh2 Rc2 Rh1 Nc5 Qb1 Rb2+ Rb3 Qe2 Bf7 Na4 Bg8 Bb6 Be6 Ra2 Ra3 Qe3 Bg8 Nc5 Be6 Q5d6 Kc4 Rb2 Ra4 Q6c6 Ra3 Qcd5+
2Q1n2Q/2B2b1Q/1r1R1q1R/3rpn1P/2K2n1P/2b1P3/3brQNn/NN1kn3 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 b5 axb5 f5 e3 f4 Be2 f3 Kd2 fxe2 Kd3 Kf7 c4 Ke6 f4 Kf5 h4 Kg4 b4 e5 f5 d5 c5 a5 b6 g5 c6 a4 f6 a3 b7 a2 b5 Na6 b8Q Nh6 f7 Be6 b6 Nc7 b7 Ne8 c7 Qf6 c8N Bb4 f8Q Bf7 Bb2 Bd2 Qfd6 Nf5 Qe1 Rh6 Nh3 Kf3 Nb6 g4 Na4 g3 Rg1 g2 Rh1 g1N Nf2 Nh3 Qc8 Nf4+ Kc2 d3+ Kb3 Ra6 b8Q d4+ Qde6 Rd6 Nc5 Rd5 Bc3 Rg6 Qg1 e1N Qed7 Ke2 Nh3 Kd1 Kc4 Rg2 Ba5 Re2 Qf2 Rd6+ Qe6 Rb6 Qa8 Bb4 Qc7 d2 Nb3 d3 Qcc8 Kc2 Rg1 d1N Rg6 d2 Rh6 Bc3 Qag2 Bb4 Qg7 Bc3 Qh8 Bb4 Qh2 Nf2 Qg1 Ng4 Qf2 d1R Qh7 Nc7 Qch8 Rd5 Qd7 Kd1 Qdc8 Nfe6 Nf4 Ne8 Ng2 Nf4 Qa8 Bd2 Qc8 Rbd6 Bd8 Rb6 Bc7 Nh2 Nc3+ Kc2 Rd1 a1B Nb1 Bac3 Qd7 Ba5 Qc8 Bdc3 Rd4 Bd2 Na1+ Kd1 Qd7 Bc3 Qe6 Ra5 Rd6 Rd5 Qc8
QB4k1/Q2Q2nN/nPBp1N2/R3rn1P/nb1P4/b1rb4/6rq/K2n1N1Q b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a4 hxg4 Ra3 Nf6 Rb3 Nh5 axb5 Nf6 b6 Ng8 b5 Kf7 Rb2 Ke8 Rb4 cxb4 c4 Kf7 f4 a5 d4 e5 Kd2 g5 Kc2 g3 Kb2 b3 h4 g2 f6 a4 h5 e4 c5 g4 f5 a3+ Ka1 g3 c6 a2 b7 e3 c7 e2 b6 e1B Qg4 Ne7 Bb5 Ra3 Nd2 Na6 Kb2 a1N b8Q Nc2 Kb1 b2 Qe4 Ne3 Ngf3 g1R Qg4 g2 Rh2 Nd1 Qe4 Rb3 Ka2 b1N Ka1 Nbc3 Qa7 Rh7 Ng5+ Kg8 Qf3 Bb7 c8Q Qc7 Ba4 Be4 Nf1 Bd3 Bf4 Rg7 Ne4 Rg5 Qca8 Bd2 Bc6 Bc1 Nfg3 Re1 Be5 g1N Ra2 Nge2 Qh1 Nf4 Nf1 Ne6 Ra5 Na4 Bf4 Rc3 f7+ Kg7 Bh2 Rg2 f6+ Kh7 Bg3 Nf5 Bf4 Bc5 f8N+ Kg8 Nh7+ Qb8 Bg3 Bb4 Be5 Neg7 f7+ Kh8 Bh2 Bca3 Nef6 Re8 Bg3 Qf4 Bh2 Qh4 Bb8 d6 Ng8 Re6 f8Q Re5 Qfe7 Qf4 Ngf6 Qh2 Ne8 Kg8 Qeb7 Be2 Qd7 Bd3 Nef6+
1R6/3QR1QQ/bnPKpr1Q/P5rb/5r1B/1B4n1/q2bPn1B/kn4nN b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 dxc5 g6 f5 Ra3 Nc3 Ra4 Nd5 Ra6 Ne3 Ra4 fxg6 Ra3 g5 Ra8 Ng4 hxg4 Kd2 f5 Ke3 d5 Kd4 Kd7 Ke5 Kc6 h4 Kb5 a4+ Kc4 g7 Kc3 a5 b5 h5 e6 h6 f4 h7 b3 g6 b4 c6 g3 c7 f3 Rh3 d4 Ra2 b2 Rh6 b1B Ba3 g2 Rb2 d3 Rh2 d2 Qc1 d1N Qg5 f2 Nh3 g1N Qh6 b3 Bg2 f1R Be7 Nf6 g8Q Ba6 g7 Nh5 Bh4 Rf4 Bd5 Bb4 Nf2 Ng3 Nh1 Nf2 Bc4 Qd3 c8Q Qd2 Qd7 Rf6 Qgf7 Rf8 h8B Rf4 Qfe7 R8f6 g8Q Ra7 Bg7 Rb7 Qgh7 Rb5+ Bd5 Rc5 Bh8 Rb5 Qeg7 Rc5 Qa7 Nd7+ Kd6 Nb6 Rh3 Qc1 Qad7 Qd2 Ra2 b2 Ra1 Kd4 c4 Bg6 Rb1 Kc3 Rh2 Rb5+ c5 Bh5 Rh3 Qc2 Rh2 Qa4 Bb3 Qa2 Rh3 Kd4 Rh2 Bd2 c6 Kc3 Rg2 Nf1 Rg5 Ng3 Rd5 Rc5 Rd4 Rg5 Rb4 Na8 Rb8 Nb6 Rd1 Be3 Rd5 b1N Rb5 Kb2 Re8 Nd5 Re7 Ka1 Rb8 Bd2 Qb7 Nf5+ Ke5 Rf3 Qf8 Nb6 Qd7 Rf7 Bf6 Rf4 Bg3 Rgg7 Bh2 Ng3 Bh4 Rg5+ Kd6 R7f6 Qfg7
qB3QB1/2Kb2pr/6PP/3q1b1Q/BQ2P3/b1bRb3/nqQn3N/2N1k1r1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 d4 cxd4 g4 h5 f4 Rh6 fxe5 Ba6 g5 Bc8 Ra3 Rh7 Rg3 Rh8 Rg4 hxg4 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 h4 Kc4 c3 f5 e6 a5 Ke5 d5 g6 a4 h5 f4 h6 f3 e3+ d3 b6 f2 b5 g3 e7 g2 e8B a3 b7 a2 b6 a1B Be2 f1B Ba3 d4 Nh3 g1B Nf2 Nf6 Ng4 Ne4 Rh3 Bf5 Nh2 Rh7 Bd6 Nd2 e4 Na6 b8Q Be3 b7 Nb4 Ba4 Na2 Bc7 Bc5 Bg4 Qh8 Qf8 Ba3 b8Q Ra6 Rg3 Bh3 Qb2 Bd7 Bb8 Qg8 Be2 Bhf5 Bf1 Rc6 Qh5 Rc5+ Kd6 Qd5+ Ke7 Qa8 Qb7 Rb5+ Kd8 Rb2 Be2 Rc2 Rh3 Rc1 Kc7 Rg1 Qb2 Nf1 Bed1 d2 Qbb4+ Kd3 c4 Bc3 Bdb3 d1Q c5 Qe2 c6 Qb2 Bg8 Nd2 Rf3 Ke2 Rh3+ Nf3 Nd2 d3 Nb3 d2 Nc1+ Ke1 Rg3 d1Q Rh3 Nd2 Rf3 Bed4 Rd3 Qa5+ Kb7 Ba7 c7 Be3 c8Q Qa8+ Kc7 Qdb3 Qcb7 Qc4+ Qc6 Qd5 Qcc4 Kf2 Qcb3 Ke1 Qc2
N7/N1r1p3/Pb1bP2N/1Knq2b1/1Q2r3/2R1Q1q1/1Qn1P2Q/kBbbBn2 b - - 0 1 illegal: No proof kernel
B3q1B1/r3Pp2/2b2qQb/3QnPPb/k3N1nK/2R1r2B/n2nRB2/1n1R4 b - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 e5 a4 exd4 axb5 d3 Nc3 c6 Nd5 cxd5 Bf4 d4 Be3 Qe7 Bc1 Qd8 b4 a5 g4 h5 f4 d5 Kf2 Kd7 Kg3 a4 c4 d2 e4 h4+ Kh3 a3 f5 a2 b6 Kc6 e5 d3 e6 d4 c5 Kb5 g6 Ra7 g7 Nd7 g5 Bb7 c6 Ngf6 g8B Qe8 c7 Bc6 c8B Ng4 b7 Bh6 e7 Nde5 Rb1 a1Q Rb3 Ka4 b8Q Qc3 Qf3 d1B b5 d2 b6 d3 b7 Be2 Ba3 d1N Qd6 d2 b8R Qb2 Bc5 Nc3 Bd4 d1N Qg6 Na2 Qd5 Ndc3 Bb7 Nb1 Rc3 Bd1 Ne2 Rh7 Kg2 h3+ Kg3 h2 Ba8 Qa1 Rg1 h1N+ Kh4 Nhf2 Bh3 Ne4 Bf2 Ned2 Ng3 Qb2 Ne4 Qb6 Qd3 Qd4 Rg2 Qd6 Qd5 Qf6 Rb2 Nf1 Bc5 Nge3 Rbd2 Rh8 Bg4 Bg7+ Bh5 Bg4 Rd1 Nfd2 Kg3 Be2 Bg4 Rh3+ Kf2 Rg3 Bh3 Bh6 Rh2 Bh5 Bd4 Rg1 Bb6 Rh1 Kg3 Re1 Kh4 N3g4 Bg1 Re3 Re2 Bb5 Bf2 Bd7 Rc2 Bc6 Rc3
2Q1B2r/1rpnk1rq/4rNPN/bnP2R2/3Q1P2/5K1b/5Q1B/2B1Brqn b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bf8 e4 gxh4 b4 f5 e6 Qg5 e5 Qe7 Ra3 Qg5 Re3 Qd8 Re4 fxe4 Ke2 d5 g4 h5 c4 a5 f4 h3 b6 h4 b7 d4 g5 a4 g6 h2 b5 a3 e7 h3 b6 e3 Kf3 e2 Nd2 e1Q Ne2 d3 Nd4 a2 Ne4 a1R Nf5 d2 Nh6 Nc6 b8B R1a7 b7 Nf6 Qe2 d1R Qf2 Ra6 Ba7 Nd7 b8B Rd6 Rg1 h1R Rg5 h2 Rf5 Re6 Bd4 Rg1 Bc3 h1N Ba7 Rb6 Bd3 Qf1 Be1 Rb7 Bae3 Bg7 c5 Na7 Bc2 Nb5 Ba4 Nb8 Bd4 Kd7 Bde3 Qg8 Bd4 Qh7 Nf6+ Kc6 e8Q+ Nd7 Qd8 Qg2+ Ke3 Rf1 Ke2 Qg1 Kf3 Re7 e6 Ra6 Bde3 Rf7 e7 Rab6 Ne8 Bc3 Nf6 Rg7 e8Q Ba5 Qg8 Nf8 Qd1 Be6 Qd4 Nd7 Re5 Bh3 Rf5 Rb8 Qf8 Re8 Qg8 Re6 Qc8 Rb7 Bb3 Rd6 Bf7 Re6 Be8 Qh2 Ke2 Qg3 Qg1 Qg5 Bf7 Ne5 Qh2 Qg3 Bg1 Qg5 Qhf2 Qg2 Qa8 Qg5 Bh2 Qg1 Nd5 Kd7 Nf6+ Ke7 Be8 Nd7+ Kf3 Nd6 Qb8 Nb5 Qc8
2k4Q/2nR2R1/1P1r1nK1/p2bN2n/1Pq2qQb/P1Q1NB1N/3N1r1b/2nn4 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 f5 cxb5 h5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 a5 Ke3 g5 Ke4 c5 Kf5 d5+ e6 d4 f4 c4 h4 d3 e4 c3 b4 c2 e5 c1N b6 d2 a3 g2 h5 g3 h6 g4 h7 Qd4 Bb5+ Kd8 Bc6 Be7 Bf3 Bh4 Nh3 g1Q Kg6 g2 f5 g3 f6 Bb7 f7 Qc4 f8N Bd5 e7+ Kc8 e8N Qe3 e6 g1B e7 g2 Ng7 Nf6 Nf5 Bh2 Nd7 g1N Ne5 Nge2 Rg1 Rf8 h8Q Qef4 Ne3 Na6 Rg3 Rd8 e8Q Nc7 Qc6 Ra7 Qg1 d1N Nd2 Rf8 Rg5 Ng3 Qc5 Ngh5 Qg4+ Kb7 Qd4 Raa8 Rb1 Rad8 Rb3 Kb8 Rd3 Rd6 Qc3 Qfd4 Kf5 Kc8 Rg7 Qf4+ Kg6+ Rd7 Qg1 Re8 Nc2 Bg8 Ng4 Re2 Ne5 Rf2 Ne3 Rd8 Rd6 Bd5 Qg4+ Kb8 Re6 Kb7 Ree7 Rd6 Qh6 Kb8 Rd7 Kc8 Qh8+
Kn3Q2/3q2kp/Rb1bNRn1/5r1b/3QP2P/1r1Pq1rr/rR3QQ1/5BN1 b - - 0 1 illegal: No possible last move
B3n1r1/2np1kNq/3b1q2/1Q4P1/KbNP1n1B/1N1b1r2/n1PNQ3/2B2Rn1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 g4 e5 f4 a5 d4 h5 Kd2 h3 g5 a4 f6 a3 b7 h2 f5 h4 b6 a2 Nc3 a1B Na4 b3 Ne2 h3 Nb2 e4 Kc3 e3 Nf4 e2 Qd2 e1N Nh5 Nf3 Be2 Bd6 Ng7+ Kf7 Rf1 Na6 b8B h1Q b7 Ng1 Bf3 h2 Qe2 Rh3 Bc7 Rg3 b8Q Bb7 Ba5 Be4 Qbb5 Bd3 Bg2 Rb8 Ba8 Rf3 Bb4 Nc7 Ba5 Kf8 f7 Nf6 Bb4 Nfe8 Ba5 Be5 Kb4 Bd6+ Ka4 Qf6 Nc4 b2 Be1 b1N Bh4 Bc3 Nd2 Rc8 Qg2 Ke7 f8N Bcb4 Qe2+ Kf7 Nfe6 Rd8 Nc5 Nc3+ Kb3 Na2 Ka4 Qg2 Ncb3 h1N Qbe5 Nf2 Qb5 Qe5 f6 Qgh2 Nh5 Nfh3 Ng7 Kf8 f7 Nf4 Bb7 Ke7 f8N Kf7 Ng6 Qf6 Ba8 Rb8 Ne7 Qh3 Nd5 Qhf5 Ne3 Qh7 Nh5 Ng7 Nec4 Rg8 Qe4 Nge8 Ng7 Qe5 Qe1 Qf6 Qe2
1R4q1/1prrkQ2/3q3b/3QP1Rn/1Pb3Kn/R2Q1rP1/1R1rq1BB/2r1N3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 c4 a4 Nc3 Bd6 Nb5 Bf8 b4 exf4 Nd4 d5 Nb3 axb3 cxd5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 h5 Kf3 f5 e4 c5 d4 b2 a4 b1Q e5 c4 d6 c3 g6 h4 g7 c2 a5 h3 d7+ Ke7 g3 h2 d5 Qb3+ Bd3 Nc6 a6 Nd4+ Kf2 f3 a7 f4 Ra4 Nf6 g8R Nf5 Ra3 Rh7 Qf1 Nh5 Be4 Nh4 Be3 c1R Rg5 Rc7 Qd3 Rb8 a8Q Bh6 Qaa6 Qd1 Qg6 Qg8 d8R Be6 Rf8 Rd8 d6+ Kd7 Bd4 Bc4 Qg7+ Ke6 Bc6 Rdd7 Rb8 Rd8 d7 Qd2+ Kf1 f2 Nf3 Qd1+ Ne1 Qd2 Qh8 Ke7 Bg2 Rg7 Rg1 h1R Qh7 Rf7 Qe2 Qd3 Be3 Qd4 Qed3 Qd6 Ke2 f1R Bc5 f3+ Ke3 Nf6 Kf4 Nh5+ Kg4 f2 Qhg6 Rf3 Be3 Rh3 Rh1 Rg1 Rh2 f1Q Bb6 Qe2 Bf2 Rf1 Bg1 R1f2 Qd5 Qe3 Qgd3 Rd2 Qb3 Rdc8 Qdd3 Qe2 d8Q+ Kf7 Qd7+ Kf8 Qc6 Ke7 Qcd5 Rd8 Rh1 Rdd7 Bh2 Rd1 Rf1 Ra1 Rf2 Rc1 Bg1 Rh1 Bh2 Rd1 Qa2 Rd2 Qa1 Rc2 Qa2 Qf1 Qa5 Bd5 Qac4 Rc1 Rb2 Qe2 Nc2 Rhd1 Ne1 Rd2 Qf4 Bb3 Qad5 Bc4 Qff7+
1KB2Q1r/Q1n1r1PR/1n3rPq/1Q1q3N/2b3pB/Q5P1/1b1nR3/1k2rBq1 b - - 0 1 illegal: No proof kernel
6r1/3Bn3/1rR1b3/RN1kb1P1/q2P1q2/rpKR2B1/1PB1qQQ1/2B2qnb b - - 0 1 illegal: No proof kernel
r3r1q1/n1Pr2r1/1RN1RR1P/q5Q1/p1k1QB1Q/P2q1b2/bK6/1QnN2b1 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Na3 h4 Nb1 h3 Bg2 hxg2 Kd2 Ke7 Kc3 Ke6 f4 d5 e4 a5 h4 g5 h5 b5 c6 g3 c7 a4 a3 d4+ Kb2 d3 c4 g4 c5 b4 c6 d2 h6 b3 Rh2 Qd3 Nc3 Bc5 Nf3 g1Q Rf2 g2 Rb1 Bb7 c8Q+ Nd7 c7 g3 Qd8 Qe1 Qg5 g1Q Rf1 g2 f5+ Kf7 f6 Ke6 f7 Ne7 f8Q Nc8 Qfd8 Na7 Qc2 d1R Bf4 Re8 Rf2 Rd2 Nd1 Bb6 Qh4 Nc5 Qdg5 Bc6 Ka1 b2+ Ka2 Nb3 Nd4+ Kd7 Rf1 Bb7 Nc6 Ke6 Rf3 Qc5 Rf2 g1R Rf1 Qf8 Rf3 Qg8 Qc1 Kf7 e6+ Kf8 e7+ Kf7 e5 Ke6 Rf1 Kd5 e6+ Qe5 Rf2 Rg4 Rf3 Bg1 Rf1 Rc2 Rf2 Kc4 Rf1 Qa5 Rf2 Red8 e8Q Rd7 e7 Rg3 Qeg6 Rg2 Qe3 Re2 e8R Rg4 Re6 Re1 Ra1 b1B+ Kb2 Ba2 Rb1 Nc1 Qge4+ Rd4 Qgf5 Rg7 Qeg3 Re3 Qgg5 Re1 Ka1 Re2 Rb6 Re1 Kb2 Re3 Qee5 Rdd7 Qee4+ Qd4+ Nc3 Ba6 Qb1 Qe4 Be5 Kc5 Re8 Be2 Nd1 Qd3 Qfg6 Bh5 Rf6 Bf3 Bf4+ Kc4 Q6f5 Re5 Qh7 Red5 Re1 Re5 Qhg6 Ree7 Ree6 Ree8 Qe4+
3QNQ2/R1n1rq1p/B1q1nRP1/2qq3P/k7/1bBbbPK1/2B1Q3/B1n1r3 b - - 0 1 legal: proof: a4 b5 axb5 g5 d4 c5 f3 cxd4 Kd2 g4 Nc3 f5 Ne4 g3 Nf2 gxf2 e4 Nf6 exf5 Ng8 Ke2 d5 b4 Kd7 g4 a5 h4 e5 c4 e4 c5 a4 h5 a3 b6 Kc6 g5 Kb5 g6 d3+ Ke3 a2 Kf4 e3 c6 e2 f6 e1Q c7 d4 b7 Qd5 f7 Qe3+ Kg3 Nc6 b8B Nge7 Qc2 Bh6 f8Q Be6 c8B Nd8 Qc4+ Ka4 Bd6 d2 Ba6 d1Q Qe8+ Qc6 Be5 d3 Bc3 d2 Qe2 Qc5 b5 Bb3 b6 Ne6 b7 Ra7 b8Q Be3 B1b2 Nd5 Qbd8 Re7 Nh3 Ndc7 Nf4 Qb1 Qf7 d1Q Nd5 Qf5 Qff8 Qf7 Nf6 Qdd5 Ne8 Rg8 Bh3 f1B Bf5 Rh8 Rc1 a1N Bc2 Rg8 Qg2 Bd3 Qe2 Rg7 Rh4+ Qdd4 Rf4 Qde4 Rf6 Qed5 Nd6 Rg8 Qg7 Rge8 Qf8 Nd4 Rd1 Nde6 Kh3 Bc1 Rf5 Ng7 Rh1 Re6 Qe5 R8e7 Qh2 Re2 Bc8 Nge6 Rg1 Be3 Ne8 Kb5 Kg3 Bbc4 Rf6 Nb3 Ra1 Re1 Ra7 Nc1 Qe2 Bb3 Ba6+ Ka4 Ba1
5QN1/rr1qnKPn/6BQ/r1P2R2/BB1k1b1p/2N4q/1nN1b1qP/2r1B3 b - - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 e5 fxe5 Qb6 axb5 Qd8 Ra6 g6 Rf6 g5 Rf4 gxf4 Kf2 Ke7 Kf3 Ke6 Ke4 h5 g4 a5 c4 f3 g5 h4 g6 d3 g7 d2 c5 a4 b6 f2 b5 a3 b7 a2 b6 a1R Nf3 R1a5 Ba3 Nc6 b8B Bd6 b7 R8a7 Qc1 d1N Ne1 Nb2 Nc3 f5+ Kf4 Qe8 Kg5 f4 e4 f3 Bb5 f1Q Bb4 f2 Ba4 Nf6 Nc2 Qh3 Rf1 Nh7+ Kh6 Qd8 Kg6 Rf8 Bc7 Rf7 b8Q Ba6 Qh6 Be2 Qc8 Qe7 Bb8 Bc7 Qg8 d5 Qf8 Bd6 Bc7 Qd8 Bb8 Rfb7 Bc7 Kd7 Kf7 d4 Bb8 d3 e6+ Kc8+ e7 Kd7 e8N d2 e5 d1R Bc7 Rc1 Bb8 Rab5 Bc7 Ne7 Nf6+ Kc6 Ng8 Qdd7 e6 Ng6+ e7 Bg3 Rg1 f1Q+ Bf4 Qfg2 Bd2 Bc7 Rf1 Bd6 Na2 Kd5 Be1 Rba5 Nc3+ Kc4 Rf6 Bf4 Rf5 Qd4 Ke6 Kd3 e8B Ne7 Bg6 Qd7+ Kf7 Kc4 Na3+ Kd4 Nc2+
3K4/B3Pr1q/R1B2Q2/1P1pn3/n1N2Q2/b2PB1Nb/NrB3rn/k1qb2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ra2 Qb6 Rb2 Qg6 axb5 Qf5 b6 Qg5 b5 Qd8 Rb4 cxb4 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 h4 Kd4 Kf5 a5 e4 g5 c4 f3 h6 b3 h7 b2 e5 d5+ e6 f2 b7 a4 c5 g4 h5 a3 d3 a2 c6 a1Q c7 g3 h6 g2 Rh2 Ra2 Qe2 Nf6 Na3 Kc3 Qe3 b1B Nc4 Ba3 Qf4 Ne4 Be3 Nd7 b8N Qg8 e7 Rb2 Nc6 Bc2 Nb4 Nec5 Be2 f1R Bd1 Na4 Na2+ Kb3 Rh1 Qc1 Ne2 g1B Ng3 Ne5+ Kf6 Bg4 c8B Bh3 Bd7 Rf2 Bc6 Rg2 Qg4 Qg7+ Kf5 f6 Ke6 f5 Qf4 Rf8 h8B Rf7 h7 Qh6+ Bf6 Qh4 h8Q Qh7 Qg4 f4 Bg7 Nd7 Bgd4 f3 Ba7 f2 Qf6 f1N Rh2 Ne5 Rh1 Nf3 Kd7 Ne5+ Kd8 Nh2 Qgf4 Rb1 Nd2+ Kb2 Nc4+ Ka1 Na5 Rb2 Nc4 Bb3 Bc2 Be6 Bb1 Bd1 Bc2 Nhf3 Rh6 Nh2 Qh8 Bf5 Re6 Bh3 Qhf6 Rb3 Be8 Rb1 Ra6 Rb2 Bc6
6QQ/2b2b1Q/3Qb2B/N1RR2PP/1p1n3q/1rR2nbq/rP3N2/1K2kr1n b - - 0 1 illegal: No proof kernel
1b3N2/3r1QR1/P4b2/1QP1r3/qpK1R1qr/2R3nN/1PbN1n1k/1Br2nN1 b - - 0 1 illegal: No proof kernel
b1Nn1B2/1b2P1N1/pB4Pr/RN1BQ2N/P1KQq1q1/q7/nr6/bn2q1k1 b - - 0 1 illegal: No possible last move, all moves rejected
nN3rk1/Q2K4/1r1n2Qp/2b2PNQ/2bB2B1/1Qq2N1P/1Pbr3R/2nq3b b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 b5 axb5 f5 exf5 g5 f4 Qb6 f6 Qd8 f5 Bh6 Ra3 Bg7 Rf3 Bf8 Rf4 gxf4 Kd2 Kf7 Kd3 a5 Ke4 d5+ Ke5 d3 g4 h6 c4 d4 g5 a4 h3 d2 b6 a3 b7 a2 c5 a1N c6 f3 c7 d3 Qe2 d1B Bd2 f2 Bc1 d2 Qe1 Na6 b8Q Bb7 c8N Nb3 Qa7 Bc2 Rh2 d1R Qb4 Rd2 Nb6 Bh1 Be2 f1B Nf3 Nc7 Nc3 Rb8 Nd7 Rb6 Nb8 Na8 Ne4 Qd7 Bd1 Bc4 Qc3 e6 Qe3 Bc5 g6+ Kf8 f7 Ne7 Neg5 Nc8 Qg1 Nd6 g7+ Ke7 Qg4 Rf8 g8Q Qc7 Qh5 Qd7 Qgg6 Qc7 Kf4 e5+ Kg4 e4 Kf4 e3 Ke5 Rh8 Be2 Kf8 Bd1 e2 Kf6 Rd4 Be3 Rd2 Bd4 e1Q Be2 Qc6 Ke5 Nc1 Kf6 B4d3 Ke6 Qd5+ Kd7 Bc4 Ne5 Rg8 Bg4 Qd1 Nef3 Qe5 Qe6 Kg7 f8Q+ Kh8 Qd8 Rf8 Qde8 Qf6 Qe3 Kg8 Qb3 Qe5 Qc3 Qe3 Qb3 Qc3 Qeg6#
2B5/n1q2k1Q/b2n2qR/PQP2p2/BN3B2/r1R1Q2r/2r2Prb/q1bK3Q b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 dxc5 e6 b4 axb4 Nc3 e5 Nb5 Rh7 Nd4 exd4 Bb2 Rh6 Bc1 Rh8 h4 b5 c4 d5 e4 g5 a4 b3 h6 b2 h5 b1R e5 d3 e6 d4 h7 b4 c6 g4 e7 d2+ Ke2 g3 h6 b3 c5 d3+ Ke3 b2 c7 g2 Ra2 Nf6 Qg4 d1R Rh2 d2 Ke2 Nc6 Qf3 Na7 Ra3 Ne4 Qe3 Nd6 Nh3 g1B Nf4 Ba6+ Nd3 f5 c8B Kf7 Rh5 Bh2 Rc3 Qc7 a5 Ra1 Bg2 b1Q Bc6 Ra3 Ba4 Qa1 Rh4 Rg8 h8Q Rg2 h7 Bh6 Rh3 Bg5 Rh5 Rb8 Rh6 Rb5 Nb4 Rh1 Qhe5 Bgf4 h8Q Bg5 Q5e4 Rb7+ Nd3 Rb2 Qa8 Rc2 Qaf3 Bg1 Kd1 Rh3 Nb4 Bh2 Qc6 Qa2 Qb5 Qe6 Qf1 Qg6 Qh1 Bc4 Qd8 Ba6 e8Q+ Kg7 Qb5 Kf7 Qh8 Bgf4 Ke2 Bg5 Kd3 d1Q+ Bd2 Qb1 Ke2 Qa2 Kd1 Qb2 Qg3 Qa2 Bf4 Qb2 Be5 Bc1 Bf4 Qa2 Qe3 Qa1 Qh7+
2q4B/rbBR1Pq1/bK1bp2n/Q6B/4bPn1/1QN1PQ1q/1nR3r1/4k2B b - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 cxd4 Nd2 Nf6 Ndf3 Ng8 Ne5 f5 gxf5 Ba6 Ng4 hxg4 Nf3 Bb7 Ng1 Bc8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 g5 c4 d5 b4 a5 f4 d3 e3 g3 f6 d2 h5 a4 h6 d4 h7 d3 f7 g2 b6 e6+ Kb5 g4 b7 g3 c5 a3 c6 a2 c7 Nh6 Ba3 Nd7 b8B Nc5 Qe1 d1B Qe2 d2 Kc6 Bd6 b5 Rg8 h8Q Bc2 b6 d1B b7 Na4 Rh2 Ra7 Rh4 Nb2 Qc3 Bd3 Bc5 Ba6 Bd4 Bc2 Rd1 a1Q Bh8 Qc1 Rh1 Qh4 Rh2 Qh3 Kb6 Rg4 Qf2 Bb1 Ne2 g1N Rd2 g2 Qa5 Nf3 Rc2 Ne5 Qf3+ Kd3 Rd2+ Kc4 Nc3+ Kb3 Bd3 g1Q Bg6 Be4 Bh5 Rg2 Rd5 Kc2 Rd3 Bd7 c8B Neg4 Bc7 Bdc6 b8Q Bcb7 Rd4 Bed3 Bd7 Kd2 Bc6 Ke1 Rd5 Be4 Rd3 Bb4 Rd7 Bd6 Qf8 Be5 Qfb4 Bd6 Qb3 Rg3 Rf2 Rg2 Nd1+ Qc3 Rd2 Qg7 Nc3 Qf2 Rc2 Qfh4 Bb5 Qd8 Bc4 Qc8 Bf1 Rf2 Bg2 Rd2 Bh1 Re2 Qba3 Rg2 Qb3
2q2b1B/K7/QBb2n1q/2PbpQ1Q/2RrB3/NkPqB2n/rq2P3/1Rn5 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h5 g4 hxg4 Nc3 f4 Ne4 Nh6 Ng3 fxg3 Ra2 Ng8 Ra3 Nh6 Ra1 Ng8 Kd2 Kf7 Kd3 Ke6 Kc4 g5 h4 d5+ Kd4 a5 f4 a4 b4 a3 b6 a2 b7 g2 b5 g3 h5 g4 h6 Nf6 b6 Nc6+ Ke3 d4+ Kd3 Kd5 b8Q e5 h7 Be6 f5 Na5 c3 Qc8 b7 Nb3 Nf3 g1N Rh4 g2 Nd2 g3 Nc4 Nh3 Rb1 g1Q Be3 a1Q Qa7 g2 b8B Qh2 Qa6 g1Q Bc7 Qb2 Na3 Qgg3 Bb6 Rg8 h8B Rg4 Qc2 Re4 Bg2 Nc1+ Kd2 d3 Rf4 Nh7 f6 Bd7 f7 Bc6 Bh1 Nf6 Rg4 Qf3 Rf4 Rd4 Bg2 Bh6 f8Q Qh1 Qe8 Bf8 Qh5 Qh2 Kd1 d2 Rg4 Qf4 Qcf5 Qh6 Bh1 Qb5 Kc2 Qd3+ Kb2 d1B Nc4 Bc2 Ka3 Bb3 Kb4 Qd2 Ka5 Qb2 Na3 Ba2 Nb5 Kc4 Na3+ Kb3 Rh4 Qd5 Be4 Qc4 Bd8 Qd3 Kb6 Rb8+ Ka7 Rb5 Qhg5 Ra5 Qh5 Rd5 Nc2 Ka4 Bh1+ Bc4 Bc7 Kb3 Bb6 Ra2 Na3 Rd8 Bf3 Bf7 Rc4 Rd4 Bh1 Bfd5 Be4
Q3r3/2R2Qrp/b1b2brP/1bPR3N/Pb1nBNN1/b5n1/1R2q2R/K5k1 b - - 0 1 legal: proof: e4 a5 g4 d5 exd5 c5 b4 cxb4 Bd3 f5 gxf5 a4 Bf1 a3 Bb2 axb2 c4 Kf7 h4 Kf6 a4 Ke5 f4+ Ke4 d4 Ke3 d6 g5 h5 e5 f6 b5 h6 b3 d5 g4 d7 e4 d6 g3 f7 b4 f5 g2 f6 Nc6 Ra2 Nge7 Nc3 b1R Rh2 b2 Nh3 g1B Ng5 b3 Ne2 Qe8 d8N Rg8 d7 Ba6 Nde6 Rg6 d8R Nf5 Rd5 Ba3 f8Q Ng3 f7 Nd4 c5 Qe7 Bh3 Re8 N6f4 Rc1 Bf5 b1B Rc2 b2 Ngh3 Kf3 Kd2 e3+ Kc3 Ba2 Rd6 b1B Rd5 B2c4 Nf2 Bcb5 Qf1 Rd1 Rd2 Be4 Nh5 Rb1 Nef4 e2 Qh8 e1B f8R Rg7 Rf7 Ra1 Rd8 Bec6 Rd5 Qe2 Ng4+ Bgf2 Rc7 Rg6 Ng2 Rd1 Qf8 Rg7 Qh1 Be3 Qe7 Bg5 Qf7 Bf6 Bb1 Nc2+ Kb3 Nd4+ Ka2 Rg6 Rc2 Beb4 Ka1 Rg1 Rb2 Rg7 Ngf4+ Rg2 Ne5+ Kf2 Be4 Rg6 Qd1 Rg7 Qb3 Kf1 Ng4 Kg1 Qf3 Nh1 Ne3 R2g6 Ng4 Ng3 Rg5 Qd1+ Bb1 Bd7 Qa8 Bdc6 Rd5 Qe2 Be4
1BR1B1B1/2r1P2p/4b1bK/nQnqrQ1P/R2nR3/4R1bb/1b1bPk2/2N5 b - - 0 1 legal: proof: c4 b5 f4 g5 a4 d5 axb5 dxc4 Nc3 e5 fxe5 Nh6 Nd5 Ng8 Nf4 gxf4 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5+ Kh5 Kd4 b4 f5 g4 a5 h4 c5 d3 a4 g5 c3 g6 f3 e6 c4 b6 a3 g7 c2 b5 c3 b7 f4 b6 a2 Bg2 f2 Qf1 f3 Bb2 Ke3 d4 c1N d5 c2 d6 Nc6 b8R Nd3 b7 c1B d7 Nd4 Qe1 f1B Qa5 f2 Nf3 Nc5 Ne5 Ne7 g8B Ra7 Nd3 Bd2 Bc6 Bh3 Nc1 f1B Rh2 Bf5 Rh3+ Kf2 Re3 B1h3 Re4 Nf3 Be5 Nd4 Qb5 Qa5 d8R Bd7 Bf4 Bg6+ Kg5 Bc8 Be8 Nec6 h5 Bd6 Kh6 Be5 Re3 Bc7 Bh2 Bg3 e7 Bce6 Rd6 Qd8 Rd5 Ra5 Re5 Qd5 Qb1 Rb5 Rc8 Na5 b8Q Ndb3 Bgf7 Nd4 Re4 Rg8 Qd3 Rb7 Qe5 Rc7 Qb5 Rf8 Bg8 Rf5 Rb1 a1B Rb4 Bac3 Ra4 Bb2 Qf6 Bh4 Bd6 Bg3 Qg5 Re5 Qg4 Rb7 Bb8 Rc7 Qf5+
Nr1qnr1b/rP1Q4/1N1p4/r1N3kb/1R1Bb3/nB2Br2/1PNP1r2/3K2Q1 b - - 0 1 illegal: No possible last move
1brRRR2/2nnbp1q/1N6/2QrQn1P/2K3nN/PRn2n1B/k4Pb1/5N2 b - - 0 1 legal: proof: d4 a5 c4 d5 b4 axb4 g4 h5 gxh5 e5 Be3 Bg4 cxd5 Bc8 d6 Bg4 d5 Bc8 Bd4 exd4 Kd2 Kd7 Kd3 b5 e4 g5 h4 c5 e5 c4+ Ke2 d3+ Kd2 c3+ Ke3 c2 Kd4 c1B a3 b3 h6 d2 h5 b2 h7 g4 Kd3 g3 Nf3 g2 Nc3 b1N Qe1 g1N Qd1 b4 Na2 b3 Qe2 d1N Rh4 b2 Qe4 Nf6 Rg4 Bb7 Kc4 Ra5 Nd2 Nf3 Bh3 Nbc3 Nb4 b1N Nf1 Be7 Rg8+ Ng4 Rf8 Bf4 Ra2 Rg8 h8N Nb5 Rb2 Nb1c3 Ng6 Nc7 Nh4 Bg3 Rb3 Ne3+ Kd3 Nf5 Kc4 Ra8 Qd4 Rg5 Qc5 Bf4 Rh8 Qg8 e6+ Ke8 d7+ Kf8 Rh6 Qh7 d8R+ Kg7 d6 Nd7 Rh8 Rc8 Nd5 Bh2 Nb6 Be4 Ng6 Kf6 Re8 Bd5+ Kb4 Bf4 Nh4+ Ke5 Rg6 Ke4 Rgg8 Kd3 Rh8 Kc2 Rhf8 Nde5 d7 Be4 d8R Nd7 Kc4 Bc6 Rb4 Bg3 Ra4 Kb2 Rb4+ Ka2 Rb1 Ne1 Rb3 Bg2 Rg8 Nf3 Ref8 Bf6 e7 Bh2 e8Q Be7 Rh8 Na8 Rfg8 Ng7 Ng6 Bed6 Qf8 Rd5 Nh4 Nf5 Qg7 Be7 Rge8 Bb8 Rhf8 Nc7 Qe5
Qbb4q/P2n1BQp/2b3RP/Nn3R2/bn2B2P/4B1kr/1Q1nn3/K1B3r1 b - - 0 1 illegal: No proof kernel
Q1b1q1bK/3nb1R1/1B3pBP/2q2P1R/B2P2rn/3Q1N2/2Q3br/2B2bbk b - - 0 1 legal: proof: d4 a5 c4 d5 g4 h5 Na3 e5 Nc2 e4 Nb4 Qd6 cxd5 Qd8 Nd3 exd3 b4 axb4 gxh5 Qd6 Bf4 Qd7 Bc1 Qd8 Kd2 Kd7 Ke3 Kd6 Kf4 b5 h4 c5 e4 g5+ Kf3 d2 a4 g4+ Kf4 g3 a5 c4 a6 c3 h6 c2 f3 f6 h7 b3 h5 b2 a7 b1B Ne2 g2 Rg1 b4 Ra5 Nd7 Kf5 b3 Kg6 b2 f4 Be7 Kg7 Qe8 h6 Ba2 Rc5 b1B Rb5 Rb8 a8Q Rb6 Rc5 Rb2 Qa3 Bc4 Qd3 Bba2 Rb5 Bd8 Ra5 Ne7 Rc5 Rf8 h8Q Ng6 Rb5 Be7 e5+ Kc7 d6+ Kc6 e6 Nh4 Kh7 Rg8 Rh5 Rg4 f5 Kd5 Qg8 Bb5 Kh8 Bac4 Rh1 Bc6 Ng1 Ba8 Nf3 g1B Q1e2 d1B Rh2 Ra2 Rg2 Rb2 Qed2 Be2 Rg3 Ra2 Bg2 Bf1 Qf8 Ne5 d7 Bb3 d8B Nd7 Bb6 Bc6 Bb2 c1Q Qf2 Qc5 Qfc2 Re4 Rg7 Rg4 Bc1 Bc4 Qb1 Rd2 Bh1 Rh2 Qdc2 Bg2 Qb5 Bcf1 Qbd3 Ba4 Qg8 Bb3 Qde2 Qg6 Qf7 Bf8 Ne5 Bf3 Qg2 Bd6 Qe8 Qf7 e7 Qe6 Qf7 Bbc4 e8B Bf8 Qa4 Ke4 Qa8+ Bd5 Qg8 Qf7 Qb2 Be7 Qf2 Qf8 Bg6 Qe8 Qb2 Be3 Qd2 Kf4 Bg2 Kg3 Qd3 Bg1 Bh1 Ba2 Qc2 Bfb7 Bc6 Bd5 Qd3+ Kg2 Ba4 Kh1 Qc2 Bdg2 Nf3 Bd5 Qd3 Bf8 Qf7 Bc4 Qe7 Bg8 Qee2 Be7 Qec2
1B3n1n/R1R1r1rQ/1nQR3n/R1qn4/1Prp2bP/3P4/1rk5/1NbB1Q1K b - - 0 1 legal: proof: e4 b5 b4 h5 g4 f5 exf5 hxg4 Nc3 c5 Nce2 c4 Nd4 Na6 a4 Nb8 Nb3 cxb3 axb5 Rh5 Ra2 Rh3 Ra1 Rh8 f4 Kf7 Kf2 Kf6 Kg2 a5 h4 d5 c4 e5 c5 g5 c6 a4 d3 g3 c7 g4 b6 b2 b7 b1N Rh3 e4 Nf3 a3 Nd4 a2 Rh1 e3 Be2 Nd7 b8R Nh6 Bf3 e2 Qe1 Nd2 Nb3 Nc4 Rf1 Qe7 Nd2 Qc5 Rb1 a1N Rb7 Ncb6 Qf2 e1R Be4 Nc2 Nf3 Ra2 Kh1 Rb2 Ra7 Ne3 Rba1 d4 R1a6 Nd5 Ra5 Bg7 Qh2 Nf8 Nd2 Re3 Bf3 Re7 Nb1 g2+ Kg1 Bd7 Qh1 Rg8 Kh2 g1R+ Be2 Rh8 c8R Rh7 Rcc7 g3+ Kh3 g2 Kh2 Be6 Bd1 Bc8 Rf2 Rge1 Qf1 g1N Kh1 Nh3 Re2 Ng5 Re6+ Kf7 f6 Kg6 f7+ Kf5 Rg6 Bf6 Be3 Rg7 Bc1 Be5 Rd6 Ree2 Be3 Rec2 Bg1 Rc4 Bh2 Nfe6 f8Q+ Ngf7 Qd8 Nh8 Qe8 Nf8 Qb5 Bf6 Qc6 Bg5 Bg3 Be6 Bh2 Bf7 Bg3 Bh5 Bh2 Be2 Bg3 Kg4 f5 Bc1 f6 Bf3+ Qg2 Kf5 f7 Bg4 Bf4 Nc8 Qf1 Ncb6 Be3+ Ke5 Bf2 Kf4 Bg3+ Ke3 Qf5 Qb5 Qh7 Qc5 Bb3 Nfd7 f8Q Ke2 Qf7 Nf8 Bd1+ Ke3 Nc3 Kd2 Qf1 Re6 Bh2 Ree7 Nb1+ Ke3 Rg6 Re2 Rc8 Rf2 Bb8 Rb2 Nc3 Kd2 Rcc7 Re1 Rd6 Ree7 Be2 Kc2 Nb1 Bd2 Bf3 Bc1 Bd1+
1RNb2NQ/2n2p2/6Rb/2b2P1P/1N1r1Pr1/1b4qB/1rnr1R2/Qkr1NK2 b - - 0 1 illegal: No proof kernel
b1RKn2r/6bN/k3p3/2QP4/BR1PPb2/rq2qNb1/3Q1b2/1NNnQb2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 h6 g5 Bb7 b3 Qd7 g6 Qd6 Bb2 Bc8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 Kc7+ Ke5 Kb7 h4 f5 e4 g4 g7 f3 d3 f4 h5 c4 b4 e6 b6 a4 h6 c3 h7 a3 b5 a2 Bh3 c2 Qe2 c1B Qe1 f2 Ne2 g3 Bf1 Nh6 g8N g2 Nf6 g1B d4 f3 Rh4 Na6 Rg4 Bd7 Rg8 Bg7 Kd6 Qb8+ Ke7 Bf4 Nc1 Bc6 Rc8 Ng4 Be2 f1Q Bd1 f2 Ba4 Qd3 Qd2 Rd8 h8N f1B Nf7 Nc7 Ne5 Ne3 Nh7 Nd1 Nf3 Rh8 Qe1 Ne8 Kd8 Qe3 Qd2 Ra5 Qe1 Ka8 b7+ Ka7 b6+ Ka6 Qd2 Bf2 Qe1 Qa8 b8Q Qb7 Qc7 Qb8 Qd6 Ba8 Qc5 B4g3 b7 Bf4 Bd7 Ra3 Ba4 B4g3 Nc3 Bf4 Rb1 a1B Rb4 B4g3 Nb1 Bc3 Ke7 Bd2 Kd8 Qa7 b8Q Qb7 Qf4 Qb5 Rc4 Qbb3 Rb4 Qec3 Qh6 Bdf4 Qh2 Qe3 Qg2 Bg1 Qb2 B1f2 Qbd2
1K2Q3/3r1n2/PN2BPQ1/2q5/r1qp3k/bnQ1RN1B/b2P1B2/bb1b2bB b - - 0 1 illegal: No possible last move
NKn3Nk/n1N1B3/3p3P/2rQ2q1/2Rb2nQ/1B1B3N/1r1P1P1b/nr4rb b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a4 hxg4 Ra3 Nf6 Rb3 Nh5 axb5 Nf6 b6 Ng8 b5 Kf7 Rb2 Ke8 Rb4 cxb4 Ke2 Kf7 Ke3 g5 Ke4 Kg7 Kd5 e5 h4 a5 c4 b3 c5 g3 b7 a4 f6+ Kh7 h5 e4 f7 a3 h6 a2 b6 a1N c6 g4 c7 g2 Ba3 e3 Nc3 b2 Qf3 b1R Ne4 g3 Bd3 e2 Nh3 g1R Be7 e1N Kd6 Bg7 f8Q g2 Q8f6 Ra2 Qh4 Nc6 b8N Bd4 b7 Na7 Na6 Rab2 b8N Bb7 c8B Nec2 Nc7 Ne3 Na8 Ng4 Na6 Qa5 Rh2 Qg5 Kc7 d6 Be6 Bc6 Bb3 Bb7 Bd8 Ne7 Kb8 Nec8 N6c7 Re8 Be7 Kh8 Nf6 Be4 Bf8 Re5 Be7 Rc5 Ng8 Rh1 Nf6 g1B Ng8 Bb7 Rg2 Bh2 Qd5 Rhg1 Rg3 Bc6 Re3 Bb7 Re1 Bc6 Rc1 Bb7 Rc4 Bc6 Qf7 Bh1 Qd5
Bkb5/2n2rrR/2bqbQ2/1p2qrb1/1PQ2QR1/2P1B3/3QP3/1RrnK2N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 a4 Nd2 Nf6 Nb3 axb3 Bg5 Ng8 Bh6 Ra6 Bc1 Ra8 h4 g5 a4 d5 a5 Kd7 e6+ Kc7 a6 b5 a7 f5 c3 f4 e7 f3 e8Q d3 h6 g4 h5 f2+ Kd2 g3 h7 g2 h6 b2 Rh5 b1B Ra2 d4 Rh3 Qf6 Re3 Na6 Rb2 Ne7 Rb3 Ba2 Qe1 Qe5 Rh3 Nf5 Qd1 Be7 Nf3 g1R Nh2 Rf8 h8Q Rf7 h7 Ne3 Qhf8 Bg5 Rb1 Bae6 Bg2 f1B h8Q Rf5 Bb7 Bg2 Qhf6 Bc6 Nf1 Rg4 Qc2 Nd1+ Ke1 Rb8 Ba8 Rb7 Bf4 Rg2 Ng3 d2+ Kf1 d3 Nh1 Rg3 Qh5 Rg4 Qg8 Rg3 Qf3 Rg4 Be3 Rgf4 Qfg7+ Rf7 Rh7 Rf5 Qc1 Re7 Ra1 Nf2 Qd5 Bh6 Q7h8 Bf7 Qg3 Bfe6 Qe1 d1R Qc4 d2 Qgf4 Rc1 Rb1 d1Q Qf6 Qdd6 Qd1 Rd7 Qe1 Nd1 Qd2 Re7 Ke1 Rd7 Rg7 Re7 Rg4 Bg5 Kf1 Kd8 Ke1 Rd7 Bb7 Kc7 a8R Rh7 Ra7 Kb8 Ba8 Rde7 Rd7 Nc7 Rd8 Rd7 Rg8 Rhg7 Rh8 Rdf7 Rh7
1r3bNR/1P2r1Qp/n2k1q2/1b5P/4NBPQ/br2B1n1/2q1Q1Q1/rBb3K1 b - - 0 1 illegal: No possible last move
N4BNq/2Q3P1/1N2p1r1/1nrk2n1/KbRb1r2/2B1Pb1P/N3B3/b3rq1Q b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 g4 Na6 c4 Nb8 cxd5 h6 f4 gxf4 g5 h5 Ra3 Kd7 Rg3 Ke8 Rg4 hxg4 d4 Kd7 Kd2 Kd6 Kc2 a5 Kb3 f5 g6 c5 b6 f3 b5 c4+ Ka4 f2 g7 c3 h3 g3 e3 c2 b7 g2 b6 f4 Ne2 g1R Bb2 c1B Na3 e6 Bc3 Na6 b8Q+ Nc7 b7 Bb2 Nc1 f3 Be2 f1R Na2 f2 Qb1 Nf6 Nc4+ Kd7 d6 Kc6 d7 Rh4 Qa1 Nb5 Nb6 Bb4 d5+ Kc5 d6 Ne4 Qb1 Qh8 d8B Rf4 d7 Rg6 Be7+ Kc6 Rg1 Ng5 Rg4 Re1 Bf8 f1Q Qa1 Ra6 Na8 Kd5 d8N Rc6 Nf7 Rc5 Nh6 Bd7 Qa7 Bc6 b8N Bb7 Nd7 Bc6 Bd2 Bd4 Qc7 Bb7 Bc3 Bc6 Ng8 Bb7 Kb3 a4+ Kc2 a3 Kb3 Bc6 Ka4 Bb7 Nc1 a2 Qb1 a1B Na2 Rf2 Rf4 Bf6 Rc4 Rf4 Qf5+ Be5 Qf7 Bd4 Ndb6+ Ke4 Qc6+ Ke5 Qh1 Bf3 Qc7+ Ke4 Nc8 Kd5 Ncb6+
1n1N2N1/2q5/b1R3Qp/2B2p1P/1bN2k2/P1BBr1Pb/K1nqqr2/3QrB2 b - - 0 1 legal: proof: f4 d5 b4 g5 c4 a5 cxd5 e5 fxe5 Na6 a3 axb4 Ra2 Bc5 Rc2 Bf8 Rc4 Nb8 Rf4 gxf4 e4 Kd7 d4 c5 Kd2 b5 Kc2 b3+ Kb2 f3 h4 f2 h5 c4 d6 Ke6 d7 h6 Nh3 b4 Bd2 Ne7 Bc3 Nec6 Nd2 Qc7 d8B Ba6 Be7 f6 Kb1 b2 Ka2 b1R Bc5 Rb3 Bd3 f1Q Nf2 Qe2 Ng4 Rg8 Re1 Rg5 Rh1 Rf5 Rg1 Rf2 d5+ Kf7 d6 Ke6 d7 Nd4 Rf1 Nc2 Re1 Nc6 Rh1 Re8 Rh3 Nb8 d8N+ Kd7 Re3 Bd6 e6+ Ke7 Ba1 c3 e5 Rb1 Nc4 Rc1 Qd2 Re1 Qd1 b3+ Kb1 f5 Nf6 b2 Ka2 b1B+ Kb3 Kf8 Ng8 Kg7 Re4 Be7 Rd4 Bf8 Rd6 Re7 Rc6 Re8 Be3 Bb4 e7 Ba2+ Ka4 Bb1 e6 Ba2 Bc5 Bb1 Ne5 Ba2 Bb2 Bd5 Nc4 Bf3 Kb3 Bg4 Ka2 Bh3 Ba1 Nd4+ Bb2 c2 Bc3 c1Q+ Bc2 Rf8 e8B Qcd2 e7 Rf6 Bf7 Re6 e8Q Re3 Bd5 Qg4 Bf3 Qe4 Be2 Qe6 Ne7 Kf6 Ng8+ Kg5 Bf1 Kf4 Qg6 Qe4 Kb1 Qf3 Bcd3 Nc2 Ka2 Qfe2 g3+
2R4k/bN1pr3/Qr1P2R1/1QP4q/q1RK1pb1/n2B1Pq1/3BRnbB/3r4 b - - 1 2 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e6 axb5 Nf6 h4 gxh4 Nc3 Ng8 Nd5 Qf6 Ne3 Qd8 d5 e5 Nf5 Bh6 Nd4 exd4 Bb2 Bg7 Bc1 Bf8 Kd2 h5 Kd3 f5 c4 Kf7 e4 Kg7 g4 a5 g5 h3 c6 h2 b6 h4 b7 f4 g6 h3 e5 a4 e6 a3 e7 a2 e8Q Qh4 c7 Nf6 Rb1 a1Q Bd2 Ne4 Rb4 Ra6 Nf3 Bc5 d6 Qa4 Qb1 Rb6 Ne1 Nc6 b8B Rh7 Ba7 Bb7 Qa8 Na5 c8R Qg3+ f3 Bd5 Qb7 Be6 Qa6 Bg4 Rg1 h1Q Rg2 h2 Re2 Qhg2 Qb2 h1B Qb1 Q2h3 Qb2 Kh6 g7 Qh5 g8R Re7 Rg6+ Kh7 Qb1 Qa2 Ra4 Bg2 Qbb5 Qa1 Nc2 Qa2 Na1 Qa3+ Nb3 Nf2+ Kc2 d3+ Kc3 Qa2 Rb4 Be3 Nc5 Qa4 Nb7 Qa2 Bc1 d2 Ra4 d1R Bd2 Ne4+ Kd3 Bg1 Rb4 Nf2+ Kd4 Qb3 Re4 Qa4 Bd3 Rc6 Bc5 Rb6 Re2 Nb3+ Kc3 Na1 Bd4 Nc2 B4e3 Na3 Kd4 Nh1 Bf2 Bh2 Bg1 Nf2 Rge6+ Kg7 Rg6+ Kf7 Qg5 Nh1 Bge3 Rc6 Qgb5 Bg1 Kc3 Bf2 Re6 Kg7 Rg6+ Kh7 Bc5 Be1 Bg1 Bf2 Bh2 Ba7 c5 Rb6 Kd4 Nf2 Nd8 Kh8 Rc4 Re5 Nb7+ Re8 Rc7 Re7 Rc8+
2NnQ3/2P3Nr/3p4/Q1bP2RR/qn1R1r2/b3B1qk/rQ1Q1Pnp/2K4b b - - 0 1 illegal: No possible last move, all moves rejected
5k1q/K1n2Npn/1Q3NP1/B2BN3/1q2r3/b2p2rB/Pn1P1NR1/r2Qq2b b - - 1 2 legal: proof: f4 a5 g4 h5 b4 e5 fxe5 b5 g5 Na6 Na3 Nb8 c4 axb4 cxb5 Ra5 Rb1 Ra7 Rb3 Ra6 Rg3 Ra8 Rg4 hxg4 Kf2 c5 Ke3 d5 h4 b3 b6 g3 b7 g2 g6 c4 Kd4 b2 e4 b1R h5 c3 h6 c2 e6 Ra4+ Bc4 f5 e5 f4 h7 f3 e7 f2 Kc5 d4 Rh2 Ra1 Nh3 Nf6 Bb2 c1N Bc3 Na6+ Kb5 g1Q b8Q Qe1 Ba5 Be6 Qb6 Nd3 Bb3 Bf7 Nc4 Nc7+ Kc6 Ra3 Kb7 Bd5+ Ka7 Bh1 Rg2 Rg8 h8N Nb2 Nf7 Nh7 Ne3 Qc8 Bd5 Rb3 Nc4 Rg3 Qc2 Qe4 Qd1 f1Q Nf2 d3 Ba8 Qfe1 Bd5 Kd7 e8B+ Ke7 Bd7 Qd8 Bg4 Ke8 e6 Ba3 e7 Qd4 Ne3 Qb4 Nc4 Qc8 Bh3 Rf8 Nd8 Rf4 Nf7 Re4 Nce5 Qe6 Nh8 Qg8 Nhf7 Qh8 Neg4 Kd7 e8N Ke7 Nge5 Kf8 Nf6
4k3/3RQq2/1RR1q2b/3pNQpq/1nnP1r2/3nQQPr/2rb1BP1/3K1N2 b - - 0 2 illegal: No extended proof kernel
B5Nr/b1Pp1K2/1RR2Q1q/2rP2N1/qP2nbq1/Q3n2Q/1rbN1kp1/2N5 b - - 0 1 legal: proof: e4 b5 g4 f5 exf5 h5 b3 hxg4 Ba3 b4 Bb2 c5 a3 c4 axb4 c3 b5 cxb2 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 Kh4 f4 g5 d4 a5 c4 a4 b4 e6 b6 a3 c5 g3 b7 g2 f6 a2 f7 g4 c6 g3 f5 Ra7 c7 Ne7 Kf6 e5 Qa4 e4 Qa3 e3 Nd2 b1R Ne2 g1Q Bg2 Ra5 Nc1 Bh6 f8Q e2 Kf7 e1B f6 Na6 b8N Rc5 Ba8 Rb2 d5 Nf5 Nc6 Bf4 Ne7 Bf2 Ng8 Ne3 Qh6+ Kg4 h4 g2 h5 Kg3 Qh7 Qd1 h6 Qg4 Qhd3 Bb7 h7 Bc6 Rh6 Ba4 Qf1 Bd1 Qh1 Bg1 Qh3+ Kf2 Rb1 a1Q Rg6 Ra2 Rb2 Bb3 Rc2 Rb2 Rc4 Bc2 Rc3 Ra5 Rc6 Rc5 Qh5 Rc3 Rd6 Nc5 Qh3 Nf1 Qa2 Ne4 Kg7 Ke1 f7 Qdg5 f8N Ba7 Kf7 Kf2 Ne6 Rc5 Rb6 Ne3 Qb3 Qa6 Qa3 Q5h4 Ne7 Rc8 h8Q Rg8 Ng5 Qa4 Rgc6 Qh6 Qf6 Rh8 Ng8
2Q2N1K/5r2/5BR1/2pprQP1/Nn1n2R1/2nPqqb1/QQP4k/b1bR2q1 b - - 0 2 legal: proof: e4 f5 a4 fxe4 f4 b5 axb5 g6 f5 Bg7 f6 Bh6 Be2 Bf8 Bg4 Kf7 Bf5 Ke8 g4 Bb7 h3 Bd5 g5 gxf5 Ra4 Bf7 Ra6 Bh5 Ra1 Bg4 hxg4 Bg7 Na3 Bh6 Nb1 Bf8 Kf2 Kf7 Ke3 Kg6 Kd4 e5+ Kd5 c5 b4 a5 d3 h5 b6 f4 b5 e3 b7 e2 b6 e1N f7 f3 Nc3 h4 Ra3 h3 Rb3 a4 Rb4 a3 Re4 a2 Nb1 a1B Nc3 f2 Qd2 f1Q Nd1 h2 Rf4 e4 Nf3 e3 Nd4 e2 Ke5 d5 Nb2 Na6 b8Q Qe8+ Ne6 Nb4 b7 Nf6 Qc8 Ne4 b8Q Bh6 f8Q Nc3 Na4 Qf3 Bb2 Rh7 Qc1 Ra6 Qb1 Rf7 Qa2 Rc6 Rf1 h1Q Qb5 Qg1 Rc4 Ng2 Rd1 e1B Rf4 Nh4 Rf6+ Kh7 Rg6 Nf5 Qbb7 Nd4 Qbb8 Rb7 Qf5 Bg3+ Kf6 Re7 Qb5 Rcc7 Nf8+ Kh8 Rg7 Re5 g6 Bd2 g5 Rce7 Rf7 Bc1 Rh7+ Kg8 g7 Rf7+ Kg6 Qe7 Rh4 Qe6+ Qf6 Qh3 Rg4 Qfe3 Qf3 Qhf1 Qf4 Qff3 Qb6 Rff5 Kh6 Kf7 Kh7 Ke7 Qbb7+ Kd6 g8R Rf6 Kh8 Rf7 Nd7 Ke6 Qf5+ Kd6 Qh7 Ke6 Rg6+ Kf5 Nf8+ Ne6 Qa6 Be1 Qb1 Ne2 Qh3 Re4 Rg2+ Kf4 Bf6 Re5 Nb6 N6d4 Qb2 Nc3 Qaa2 Bh4 Na4 Bf2 Qhd7 Bh4 Rh2 Kg3 Rh1 Kg2 Qf5 Bf2 Rh4 Bg3 Re4 Kh2 Rg4
RB6/nprnQ3/1qRp1b2/R7/2q1BR2/1NPPQ1rb/B3P1qn/1bK1k3 b - - 0 1 legal: proof: f4 a5 b4 axb4 g4 c5 Bg2 h5 gxh5 e5 fxe5 Ra7 Nc3 Ra8 Nd5 b3 Nb4 cxb4 Bh3 Qf6 Bf1 Qd8 h4 Ke7 a4 Ke6 a5 Kd5 e6 Ke4 a6 f5 h6 g5 e7 d6 e8B g4 h5 g3 a7 b2 c3 b1Q h7 b3 h6 f4 Ba3 g2 d3+ Ke3 Nf3 g1Q Bf7 b2 Nd2 f3 Qc1 f2+ Kd1 Nf6 Ba2 Qg2 Rh4 Qc7 Rf4 Rg8 h8Q Qc4 h7 Be7 Qg7 Bh3 h8R Nc6 Qf7 Rae8 a8R Nd7 Qf8 Rg3 Bc5+ Qd4 Qg7 Rc8 Ba7 Rc7 Bb8 Qc4 Rc8 Na7 Qh7 Bf6 Qe7+ Qge4 Bg2 f1N Bf3 Kf2 Nb3 Nh2 Kd2 Qg6 Kd1 Qgg8 Kd2 Qg4 Be4+ Qf3 Qc2 Qg1 Qc1 Qg2 Kd1 b1B Qe3+ Kf1 Kc1 Ke1 Rh8 Qg4 Rh5 Qc6 Rc5 Qb6 Rc6 Bc2 Bb1 Qe6 Ra5 Qc4 Ba2 Bb1 Re5 Qf7 Ref5 Qc4 Ra5
3Q1rqN/kpPBRQ1q/1BB2p2/1b5r/1PnP4/8/NB3q1b/Knb2Nn1 b - - 0 1 illegal: No proof kernel
1n2B1Q1/pKN2rp1/PR3b2/1R4rk/3Q1b1R/b4nPP/4qq1r/BR4qB b - - 0 2 legal: proof: e4 e5 b4 c5 bxc5 d5 f3 dxe4 Ke2 e3 Ke1 e2 Kf2 e4 Ke3 Qc7 Kd4 e3 Kc3 Qd8 Ba3 h5 Bb4 h4 Ba3 Bf5 Bc1 Be4 fxe4 h3 g3 Kd7 Kd4 Na6 Nc3 Rb8 Nd5 Ra8 Kc3 Nb8 Nf4 Ke8 Ng2 hxg2 Kb4 e1B Kb5 f5 d4 Kf7 c4 Kg6 a4 e2 a5 f4 a6 f3 d5 f2 d6 b6 c6 Bc3 h3 e1Q e5 Qd7 c5 Qe7 e6 Qe3 c7 Qd2 c8Q Bd4 c6 Qe1 d7 Nf6 d8R Ne4 c7 Nd2 Ne2 g1B Bg2 f1Q Ra4 Rh5+ Rd5 Bge3 Bb2 Nf3 Ba1 Qg1 Nc3 Bf6 Rg4+ Rg5 Qd4 Kh5 Rf5 Qef2 Nd5 Bf4 Qe8+ Qf7 c8R Ba3 Qg8 Qe8+ Rc6 Qe7 Nc7 Qe8 Kc4 b5+ Kd5 b4 e7 b3 Rb6 b2 Re5 b1R Rf5 Qg6 e8B Rb2 Re5 Qe2 Rf5 Qgf2 Rb1 Qg1 Bh1 Qef2 Bb5 Qe8 Bd7 Qee2 Ba4 Nd7 Kc6 Rf8 Kb7 Nb8 Be8+ Rf7 Rfb5 Qe6 Bd7 Qff1 Re5 Rh2 Reb5 Qff2 Be8 Qee2 Rh4+
q7/RQQrp2K/1n1BRPRb/1b1rN3/b1R3P1/1n2N1pQ/q3Pk2/n5q1 b - - 0 1 illegal: No extended proof kernel
2B5/1N4P1/1nbrQRpk/2p2QP1/PN3bn1/n1qn1R2/6Kn/NN1bQ2r b - - 0 1 illegal: No possible last move, all moves rejected
1Q2N3/1Kbn4/Q4p1P/1QB1n1k1/3RBb2/PnB1r1pn/b1nrq1P1/R1B5 b - - 0 1 illegal: No proof kernel
n1Q1n3/1P3br1/1NBprk1r/1P1P1Qr1/2b1p2B/B2r3R/1b1QN3/q1QK4 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Ra3 Kf7 Rb3 Nf6 axb5 Ke8 b6 Ng8 b5 Na6 Rb2 Nb8 Rb4 cxb4 d4 Kf7 g4 h5 c4 e5 f4 a5 g5 e4 g6+ Kf6 d5 d6 g7 b3 b7 h3 c5 b2 c6 a4 c7 h2 Qd3 a3 Qh3 h4 Kd2 a2 Be2 a1R Na3 b1B Qf3 h3 Qg2 Ba2 Bd1 Bc4 Bh5 Na6 Kd1 Rh7 Qd2 Be6 c8Q Bf7 Ne2 Qa5 Qc5 Nc7 Bg6 Ba2 Nc4 Re8 Nb6 Bc4 Bh5 Ra4 Ba3 Na8 Qce3 Qa6 Qec3+ Re5 Qcc1 Re6 Bg4 Rb4 Bh5 Rb3 Bg4 Nh6 g8Q Bg7 Qc8 Rd3 Bh5 Ng4 Bg6 Bg8 Be8 Bf7 Bc6 Rh5 Rg1 Rg5 Rg3 Ke7 Rf3 Nf6 Re3 Ne8 f6+ Kf8 f5 h1R+ Ng1 Rh2 Ne2 Rhg2 Rf3 h2 Rh3 Bg8 f7 Ke7 f8B+ Kf6 Bd7 Bf7 Bc6 Bh8 Bh6 Rg7 Be3 R2g5 Bf2 h1R+ Be1 Ke5 f6 Rh2 Bh4 Kf5 Bb4 Qa1 Bc5 Bg6 f7 Kf6 f8Q+ Bf7 Re3 Rh3 Ba3 Rh2 Bf2 Rhh7 Bh4 Rh6 Rh3 Ke5 Rh2 R7g6 Nd4 Bg8 Qf3 Bf7 Qf1 Bf6 Ne2 Rg7 Qg1 Kf5 Rh3 Bb2 Qg4+ Kf6 Qf5+
3Qn1Q1/R1P3p1/1bRnR3/n2rR1P1/2qkP3/BB3r1p/b2BNb2/3b2bK b - - 0 1 illegal: No proof kernel
Qbr1n1nr/1Rk1Bb2/R1r1p3/Q2r3B/Q1bRP3/Prq2QN1/6pP/3K4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 c4 d5 cxd5 g6 f5 Bd7 Na3 Be6 Nc2 Bd7 Ne3 Be6 fxg6 Bd7 g5 Bc8 Ng4 hxg4 e4 Kd7 d4 f5 d6 b5 a3 c5 d5 f4 g7 b3 g6 f3 Qc2 b4 Qd1 b2 Bh6 b1R Qc1 g3 Ne2 g2 Qd1 c4 Bg5 b3 Ng3 b2 Be2 c3 Rf1 c2 Bh4 Rc1 Rb1 f2+ Kd2 Ra6 Bh5 Rc6 Qf3 Qc7 Bg5 Kd8 d7 Rd1+ Ke2 c1R Bh4 Nh6 g8Q Na6 g7 Rd4 Qgf7 Ng8 Qb3 Qa5 Qff3 Qc3 Qa4 Kc7 d8R Be6 Rd1 Bf7 Rd6 e6 Be7 Rd3 Rd2 Rc2 Kd1 Rd4 Rd3 f1B Rd2 Bc4 Rd3 Nf6 g8Q Bh6 Qa8 Bf4 Rd2 Ng8 Rd3 Nb8 Rd2 Nd7 Rd3 Ndf6 Rd2 Rc5 Ra6 Rc6 Rd3 Ne8 d6+ Kd7 Rd2 Rd5 Rd4 Be5 Qa7+ Kc8 Qb6 Bf4 Qba5 Kb7 d7 Bb8 Rc1 b1R d8Q Rbb6 Rb1 Rc8 Rb3 Rb2 Rb5 Rb3 Rb4 Re5 Qdd5+ Kc7 Qa8 Rd5 Rb5 Kd7 Rb4+ Rbc6 Rbb6 Kc7 Rb7#
1r2b1B1/5Q2/3pNQ2/KBr4q/2r2bQ1/1B1PknN1/P3bpRP/2r1n1Br b - - 0 1 legal: proof: f4 a5 b4 axb4 g4 c5 Na3 h5 gxh5 e5 Rb1 c4 Rb3 cxb3 fxe5 Qg5 Nc4 Qf6 Na3 Qd8 e4 Ke7 c4 Ke6 h6 b5 c5 g5 h7 f5 c6 g4 c7 g3 Ke2 g2 Kd3 b2 Nh3 b1B+ Qc2 g1R Be2 b3 Kc3 b4+ Kc4 f4 Kb5 d6 Bf3 b2 Nc4 b3 Kb4 Rg5 Rd1 Nh6 Bg4+ Nf5 Ne3 f3 Rg1 Nd7 Qd1 Qe8 Rg2 Ba6 c8B Rb8+ Ka5 Bh6 Nf1 Bc2 Bh5 b1R Ng3 b2 d3 Nd4 Bb7 Bb5 Be3 Rc8 Qe2 Rh1 Bg1 f2 Qg4+ Rf5 Bg6 b1R Ba8 Rf8 h8Q Bd1 Bh7 Nc2 Bg8+ Qf7 Bc6 Be2 Bb7 Rc1 Nf4+ Ke7 e6 Ne1 e5 Qh5 Bd5 Rfd8 Bb3 R8c4 Nh3 Bf4 Ng5 Rb8 Qh6 Nf8 Qh8 Ng6 Qh6 Nh4 Qf6+ Ke8 e7 Kd7 e6+ Kc6 e8Q+ Kc5 e7 Nhf3 Qef8 Be8 Q8f7 Re5 N5e4+ Kd4+ Nc5 Ba4 e8B Ke3 Bd7 Bb5 Ne6 Rf5 Bc8 Rfc5 Ba6 Be8+ Bb5
RN2KnB1/bRb1N1r1/2p1nQ2/1N2rQ2/2npq3/b2Pk3/1rPNb1P1/6R1 b - - 0 2 legal: proof: e4 b5 a4 g5 axb5 f5 exf5 g4 f3 g3 d3 gxh2 Ne2 Nf6 Be3 Ng8 Bg1 hxg1R Kd2 Kf7 Kc3 Kf6 Kd4 Kg5 Kd5 e5 b4 h5 f6 a5 b6 e4 b5 h4 b7 e3 f7 c6+ Ke5 d5 b6 a4 Nf4 h3 Qe2 a3 Qd1 a2 Nh5 e2 Ng3 e1B Nd2 h2 Ne2 Ra5 Rb1 a1B+ Nd4 Nf6 Rb3 Nh5 Rb4 Bg4 Qb1 Ng7 Qb2 Ne6 Nb5 Qe8 Be2 Rh7 Qc3 Rf1 Rg1 h1N Ra4 Be7 f8N Rg7 Ng6 Ba3 Ne7 Nf2 Rb4 Nd7+ Kd6 Qg6 b8R Qe4 b7 Kf4 Ra8 Nd1 b8N Bf2 Qf6+ Ke3 f4 Ndf8 f5 Nb2 Bf3 Bh5 Bg4 Rb1 Bh3 Be2 Bg4 Nh7 Kd7 Nc4 Ke8 Be5 Bh5 Bf4 Bf7 Bc7 Bg8 Rb3 Nc3 Rb2 Rb7 Nhf8 Nb5 d4 Qh4 Be1 f6 Beg3 f7 Bb6 Qf6 Bgc7 Nd6 Re5 Nb5 Nh7 f8Q Ba7 Q8f7 Nhf8 Qf5 Rb4 Q7g6 Rb2 Qgf6
1K1B1Q1r/QP3BRP/2p2R1b/B1Pq4/n1n2N1B/2br4/2pbkn2/1bQr4 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 g4 hxg4 c5 Nb8 Na3 Nc6 Nc4 dxc4 Bg2 Nb8 Bh3 Kd7 Bf1 Ke8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 a5 b4 c6 f6 c3 f3 g3 f7 g2 b6 a4 b5 a3 b7 a2 b6 Nh6 Bc4 Bf5 Ne2 g1R f4+ Kg4 d4 Kf3 h4 g5 d5 g4 h5 g3 d6 g2 d7 Bb1 f5 Ra3 f6 Nf5 h6 Ne3 h7 Bh6 f8Q e6 Kd6 e5 f7 e4 Qc2 Rd1+ Bd2 g1N Qc1 Nh3 Rg1 Nf2 Rg7 Qg5 Kc7 Qd5 d8B Nd7 Bb3 Nc4 b8Q e3 b7 Ndb6 Nf4 e2 Qa7 e1B Kb8 Na4 Bh4 Bc2 Rb1 a1B Rb2 Bb1 Ra2 Bb2 Ra1 c2 Ba5 Qd6+ Kc8 Nd3 Qd8 Ne3 f8B Bd2 Ne2 Rh1 Qg1 Ba2 Bf7 Qd5 Kb8 Nc4 Bfe7 Rc3 Re1 Bb1 Qf8 Ra3 Bed8 Bf6 Nc1 Rb3 Re2 Nf2 Re6 Rd3 Ne2 Bfc3 Qc1 Rd1 Rf6+ Ke3 Nf4 Kf3 Ne6+ Ke2 Nf4+
2N2Q1R/2n2r1Q/3rr1N1/2pkbbQ1/p2P3K/P1P1B3/1bqnQ3/r2BBn2 b - - 1 2 legal: proof: e4 f5 exf5 g5 h4 c5 b4 Nf6 bxc5 Ng8 c6 gxh4 a3 d6 Ra2 Be6 Rb2 Bd7 Rb5 Bc8 Rc5 dxc5 f4 Kf7 Kf2 e5 g4 a5 g5 h5 c7 b5 f6 Ke6 f5+ Kd5 g6 b4 g7 e4 d3 a4 f7 e3+ Kg2 e2 Kh3 e1B Nd2 b3 Rh2 b2 Ndf3 b1N Rh1 Rh6 Bg5 Bg3 Nd2 Be5 Nc4 Re6 f6 Nd2 Be3 Raa6 Nd6 Ne7 g8Q Bg7 f8B Nf5 f7 Ng3 Be2 Ngf1 Nf3 Qg5 Be7 Qg6 f8Q Rc6 Ng5 Na6 Qh7 Bb2 d4 Be5 c3 Qc2 Qc1 Bd7 c8Q Nc7 Nf3 Ra6 Nf7 Rad6 Qce8 Bc8 Bd1 Bd7 Kg2 h3+ Kf2 h2 Nh4 Bc8 Ng6 h4 Qb5 h3 Bh4 Bd7 Qe2 Bc8 Nd8 Bd7 Nc6 Bc8 Na7 Bd7 Rg1 h1R Nc8 h2 Rg3 Rg1 Rh3 h1R Rh2 Rg5 Rh3 Rf5+ Kg2 Bh2 Be1 Be5 Rh6 Rg1+ Kh3 Rf7 Kh4 Ref6 Qhg8 Bf5 Rh8 Rfe6 Qh7 Rfd7 Bg5 Ng3 Bf2 Nb3 Qf4 Rf1 Qfg4 Re1 Bge3 Nd2 Qg5 Ngf1 Bg3 Rf7 Bgf2 Qd3 Bc2 Ra1 Bd1 Qc2 Be1
6K1/1b1b3r/Pbk2Qb1/q2nnnBp/4B2Q/pQ6/Pr2BBP1/RR2Nr2 b - - 0 1 illegal: No proof kernel
1B1K1Q2/QN2Pb2/r1Qb1RN1/p2nQp1b/R5r1/2bn2P1/2kq1P1r/2n2R2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Ke2 Kf5 Kd3 c5 b4 h5 b6 a5 b7 h3 b5 h4 b6 h2 Qa4 c4+ Kd4 h3 Kc5 Ke4 Kb5 Kd3 e4 f5 e5 d4 e6 c3 Ra2 c2 Nf3 Nf6 Nc3 Na6 Kc6 Nc5 b8Q Rg8 b7 Rg4 Nb5 Nd5 Rf1 h1N Nh4 h2 Qa7 Ng3 b8Q h1R Bf4 c1B Ng6 Ne2 g3 Rh2 e7 Ba3 Qbc7 Nc1 Ra1 Bg7 Be5 Qh8 d8R Be6 d7 Qh6 Rf8 Bf7 d8Q Qd2 Nd6 Bh8 Qb5+ Kc2 Nb7 N5d3 Kd7+ Bc5 Qcb6 Bd6 Ra4 Bg7 Qab8 Ra6 Q5c6+ Nc5+ Kc8 d3 Q6a7 Bh8 Bf4 Bc3 Be5 Qf4 Qde8 d2 Kd8 d1B Qbc7 N5d3 Qcb8 Bg8 Rf6 Bf7 Qf8 Qd2 Bf4 Rg5 Be5 Bh5 Bf4 Rg4 Qbc7 Ba3 Qe5 Bd6 Qe6 Ba3 Bb8 Bd6 Qe5
1K4bn/R1ppR3/1B2Q3/1QBr4/P1PPN1B1/3nk3/qQb1r2r/3r1nQb b - - 1 2 legal: proof: f4 a5 g4 f5 gxf5 h6 e4 e6 b4 axb4 e5 Bd6 Nc3 Be7 Ne4 Bf6 Ng5 hxg5 exf6 g4 Kf2 Kf7 Ke3 b5 Kd4 g5 Kc5 b3 d4 b4 a4 b2 h4 b1B h5 b3 h6 e5 h7 e4 Qd2 b2 Bh3 e3 Qg2 g3 Kb5 g4 Nf3 e2 Nd2 e1R Ne4 Re2 Re1 Bb7 Bd2 Ne7 Ba5 Na6 Bb6 Ba2 Rab1 Qg8 Ka5 Be6 c4 Ng6 Kb5 Bbd5 Ka5 Nb4+ Kb5 Rf8 Ka5 Nd3 Ka6 Rb8 Ka7 Qf8 Rf1 Qa3 Rfe1 Rc2 Re3 Qa2 Re2 Rhe8 h8Q Re7 Qh6 Nh8 Re3 Rg8 Ree1 Rg5 Kb8 Ba8 Qg1 Rh2 Qg2 Ke8 Re2 Bg8 f7+ Kd8 f6 Rd5 f8B Ke8 f5 Kf7 Rbe1 b1B Rb2 Bc2 Rb5 Bb7 Ra5 Ree5 Bfc5 Re7 Qf3 g2 Ra7 g1N Qg2 g3 Bg4 Nf3 Qc1 Ree5 Qb2 Nd2 Re2 Nf1 Re3 Ke8 f7+ Kd8 f8Q+ Re8 Qg1 g2 f6 Ba8 Qf2 g1R f7 Rgh1 Qh6 Re6 Nd6 Ke7 Qg2 Rg1 Qhh3 Kf6 f8Q+ Kg5 Qe8 Kf4 Qhh5 Ree5 Qe6 Rgh1 Re1 Re2 Ne4 Ke3 Bb4 Rd6 Qb5 Rd5 B4c5 Nd2 Rf1 Bb7 Rf2 Rd1 Rf7 Nf1 Re7 Rh6 Nd2+ Re5 Qh2 Bh1 Ne4 Rd5 Qg2 Rh2 Qg1+
1k2QQ2/1r4pP/1q1pb3/R2Br1B1/nB1r3r/1B1PQ1Pb/6n1/RK1bn1N1 b - - 0 2 legal: proof: b4 h5 a4 e5 c4 b5 cxb5 h4 a5 h3 Nc3 Bd6 Nd5 Bc5 Nf4 Bb6 axb6 Qg5 g3 Qd8 Ng2 hxg2 f4 exf4 h4 c5 e4 a5 h5 f5 e5 d6 e6 c4 b7 c3 b6 a4 b5 a3 d3 f3 e7 Kd7 h6 f4 Nh3 g1R Rb1 f2+ Ke2 f3+ Ke3 c2 Kd2 a2 Rb4 a1N Qe2 Na6 b8B Nc5 b7 Qb6 Bg2 f1B Qe5 f2 Bc7 Ra5 b8Q Be2 Bd5 f1B Qe3 Na4 Ba3 c1R Bd8 Bd1 h7 Nf6 Rc4 Nc2 Bb4 Ne1 Rc5 Rc4 Qa8 Rf4 Kc1 Ng4 Kb1 Rd4 Bb3 Rg2 Ng1 Rh2 Qaf3 Rh5 Qf8 Rh4 Rg5 Bh3 Rc5 Qa7 b6 Rb5 b7 Qb6 Rg5 Re5 b8Q Kc6 Rf5 Be6 Qa8+ Kd7 Qae4 Kc8 e8B Rg8 Bc6 Kb8 Bcd5 Rh8 Q4f4 Rg8 Qe8 Rf8 Rg5 Rf7 Qf6 Rb7 Qff8 Nf3 Rh2 Ne1 Ra2 Ng2 Ra1 Nh2 Rh5 Nf3 Bdc4 Ree4 Ra5 Re5 Bd5 Nfe1 Bg5+
3rRq1b/N5k1/1p1bn1rr/1Np1B1Q1/n6B/r2PK1nB/PPQ5/1Q2B2b b - - 0 1 illegal: No proof kernel
1R1Q4/b1pb2rr/QQ1R3q/3RP1b1/2r1NQ2/P1B1n2p/2P2KB1/1rk1nn2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 e5 hxg5 f5 b4 axb4 Nc3 Bg7 dxe5 Na6 e6 Nb8 e5 Bf8 Ne4 fxe4 f4 Ke7 g4 b5 f5 h5 g6 d5 g5 d4 g7 b3 a3 b4 g6 b2 Rh3 b1R Rc3 d3 Qg4 e3 Ra2 h4 Rc6 e2 Rb6 h3 Qg2 b3 Qd5 d2+ Kf2 d1N+ Kg3 e1B+ Kf3 b2 Rb5 Bf2 Be2 Bd7 Bd2 Nc6 Qd3 Rh7 Rd5 Ba7 Bc3 Nb4 Qa6 Nh6 g8R Nd3 g7 Ng4 Bf1 Nde3 Bg2 Nf1 Ne2 Nge3 Ng3 Ne1+ Kf2 Qc8 Qb6 Qa6 Ra1 Rc1 Rh8 b1R g8Q Bh6 Qc8 Bg5 Ne4 Rd1 Qcb7 Rd4 Rb8 Rc4 Q7c6 Rb3 Rad1 Rb1 Rd6 Rg7 R1d5 Rh7 Rb7 Rg8 Rb8 Rgg7 Qcb5 Qc8 Q6a6 Qf8 Qbb6 Qf6 Rb7 Qh6 f6+ Kf8 e7+ Kf7 Rb8 Kg6 e8Q+ Kf5 f7 Kg4 Rc5 Kf4 f8Q+ Nf5 Kg1 Ke3 Qd8 Ke2 Rcd5 N5e3 Nd2 Kd1 Qf4 Kc1 Ne4 Bb5 Kf2 Bc6 Qdc8 Bd7 Qd8
N2nq2R/r7/3rPNB1/5R1P/1p4pK/1Pq1R2n/2rkbrN1/bQ2RQr1 b - - 0 1 legal: proof: g4 d5 f4 a5 c4 e5 cxd5 exf4 b3 h5 gxh5 a4 Bb2 a3 Bh3 axb2 Bg2 Ra3 Bf1 Ra8 Kf2 Kd7 a4 Kd6 h4 Ke5 d4+ Ke4 a5 g5 h6 c5 a6 f5 h7 b5 d6 f3 Kg3 Ke3 d5 c4 a7 b4 d7 g4 d6 c3 h5 f4+ Kh2 f2 Qe1 f3 Kg3 c2 Rh3 c1R Bg2 f1R Nc3 b1Q Ne4 f2 Nf3 Rc2 Nf6 Qe8 d8Q Nh6 d7 Ba6 Kh4 Rg1 Qf1 Qc1 Ne1+ Kd2 e4 Bg7 e5 Nf7 e6 Nc6 Be4 Be2 Bg6 Ng5 Re3 Nh3 Ng2 Rg8 Qe7 Nd8 h8R Qb2 Ra5 Qc3 Rf5 Rf8 Qb1 f1R Qf7 Rg8 Qf8 Rf2 Qf7 Rc8 a8N Rc6 Qf8 Rd6 Qf7 Bh6 Qf8 Rg7 Qf7 Bf4 Qf8 Be5 Qf7 Nb7 d8R Bd4 Rc8 Nd8 Qf8 Ra7 Rcc5 Qd3 Rce5 Ba1 Qf7 Bf3 Re1 Be2 Re3 Qc4 Qb7 Qc3 Qb5 Bf3 Qf1 Bd1 Nd7 Be2 Nf6
8/nrR2KR1/1p3Q2/r1P4R/1rBP1pQq/Bq2br2/1BN1kP1B/r2b1n2 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 h5 gxh5 b5 axb5 Bf5 b6 Bc8 b4 Nf6 b5 Bd7 b7 Bc8 b6 Qd6 Nc3 Qd4 Na4 Na6 b8B Qd8 b7 Ng8 Nb6 cxb6 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Kg5 Kd4 h4 f5 Kg6 e5 c4 e3 c5 e4 h6 e2 h5 Kd3 h7 e3 h6 Nb4 Rh3 a5 Kf7 g5 Bb2 a4 Bd6 g4 b8B g3 Bbc7 a3 Bc3 a2 Qb3 g2 Rh2 Ne7 Rh3 Nc2 Rf3 Ra5 Rg3 Nc6 Bb8 Qh4 Rg5 Na7 Nh3 g1Q Bf4 Qgg3 Qb4 Rg8 Re1 a1R h8Q Be7 Rg7 Bg5 h7 Rf8+ Kg6 Rf7 Ng1 Rb7 Bb2 Bd7 Nf3 Ba4 Qf8 Bb3 h8R R1a4 Qa3 Rb4 Nd4 Qf3 Qc8 Qd5 Qa2 Ba4 Rd1 Qb3 Rh5 Bh6 Qa1 Bg5 Bh3 e1R Bf1+ e2 Qd7 Ne3 Nc2+ Nd5 Bh2 Be3 B8e5 f4 Bf6 Re4 Qg4 Rb4 Rc1 Rd1 Rc7 Re1 Ba3 Rd1 Bg2 e1R Kf7 Rg1 Bh3 Rg3 Bfb2 Rf3 Rb1 Ke2 d3 Rd2 Rg1 Rd1 Bf1+ Kd2 Qa2 Ra1 d4 Kd1 Bd3+ Kd2 Bf5 Ke2 Be6 Bc1 Rg2 Ne3 Qb1 Nf1 Bc4+ Qd3 Rg1 Be3 Rg3 Nd2 Qg1 Nf1 Qe6 Bb3 Rg7 Ba4 Qgg4 Bb3 Ne1 Bc2 Qf6 Bd1 Bb3 Qb5 Nc2 Qa4 Be6 Qb3 Bc4+
1Q1Q1N2/N3rb1P/Rrq4q/1pb2Rn1/pR1P3n/1Q4Kn/1PB1k3/n5nQ b - - 0 1 illegal: No proof kernel
1Qn1qq2/3B4/p1pN1Br1/KP1b2b1/n2QqqB1/P3R1R1/rP2qk2/Q3Q3 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 f5 cxb5 h5 g4 fxg4 Nc3 h4 Ne4 Ne7 Ng3 hxg3 Be3 Ng8 Bg5 Be7 Bc1 Bf8 Kd2 Kf7 Kc3 Ke6 f4 Kf5 h4 Ke4 h5 g5 h6 d5 e3 g2 e6 d4+ Kc4 c6 f5 d3 h7 g3 e7 g4 Kb4 d2 f6 Qe8 f7 Bh6 f8Q Bg5 Rh5 Nd7 Qg7 Nb6 Ne2 Kf3 e4 g1Q e5 g2 e6 g3 Rh3 Qh2 Ka5 g1Q Qd4 Qe3 Nc3+ Kf2 Be2 g2 Bg4 g1Q Rg3 Na4 Rb1 Qf8 e8B Qgg2 e7 Be6 Bd7 Bd5 e8Q Ne7 Ra1 Rg8 h8Q Rg7 Qh4 Qe4 Qb8 Rg6 Qh1 d1Q a3 a6 Bd2 Qe2 Re1 Nc8 Bc1 Qee8 Bd2 Bh6 Qe7 Bg5 Qee4 Ra7 Qb1 Qg2 Qa1 Qge4 Qc5 Q4c4 Bdf5 Bg2 Qa2 Rh7 Bd7 Qef3 Qcd6 Qed3 Re3 Qcf4 Qhb1 Qf1 Qe5 Rh1 Ne4+ Kg1 Be1 Q1e2 Nd6 Qd5 Bd2+ Kf2 Bc3 Qdc4 Qc5 Bd5 Bf6 Qce4 Qd4 Rg1 Qc1 Rf1 Qcd2 Ra1 Qb1 Ra2 Qa1 Bh6 Q2c3 Bg5 Qce1+
qb1K2bQ/1p2RN2/pQ6/nP1NQr1B/1P2b3/8/Pr1Q1b1b/RN1n1q1k b - - 1 2 legal: proof: d4 f5 b4 h5 g4 fxg4 c3 e5 dxe5 Qe7 b5 Qb4 Bf4 h4 Bg3 hxg3 cxb4 Rh3 Qd3 Rh4 Qd1 Rh8 Kd2 Kf7 Ke3 Kg6 Kf4 Kh5 Kf5 Kh4 e4 c5 f4 d5+ e6 g5 e5 g2 h3 Kg3 h4 c4 h5 a6 h6 c3 h7 d4 Bd3 c2 Nh3 g1Q Qc1 Kg2 Qb2 g3 Kg6 g4 Kf7 Nf6 e7 Bf5 e8N Bd6 e6 Qf1 e7 Be4 f5 Nd5 f6 Nc3 Ke6 Nd1 f7 Nc6 Kd7 Na5 f8Q Bb8 Be2 c1Q Qg7 d3 Qbf6 d2 Ke6 Qc8+ Kf7 Rg8 Qh6 Rg5 h8Q Rf5 Rg1+ Kh2 Nd6 g2 e8Q g3 Ke7 Ba7 Qeg8 Bf3 Na3 Qf2 Re1 g1B Nf7 g2 Rb1 Qf1 Qe6 Kh1 Nd8 Bh2 Ra1 g1B Qgg7 Bgf2 Nf7 Qg8 Qb6 Rc8 Qhd6 Rc2 Nf4 Rb2 Nb1 Qa8 Qgf6 Bg2 Bh5 Bb8 Kd8 Bf3 Re6 Be4 Re7 Ne3 Qfe5 d1B Ng5 Bb3 Qd2 Bg8 Nd5 Nd1 Nf7
1nr1N3/1Q3NK1/1pP2r1p/PB2b2P/b3B3/1b1nb1BN/NQRn4/4qk1q b - - 0 1 legal: proof: d4 a5 e4 g5 b4 f5 exf5 c5 dxc5 axb4 f4 Kf7 a4 Ra7 f6 Ke8 f5 Ra6 Ra3 Ra5 Rf3 Ra8 Rf4 gxf4 Kf2 Kf7 Kf3 e5 Ke4 b3 g4 h6 h4 b2 c4 f3 a5 f2 g5 b6 c6 Qe8 c7 Bd6 c5 Ne7 h5 Nd5 c6 Nb4 Nc3 b1Q+ Qc2 Rf8 Na2 Nd3 Bf4 Qa1 Be2 f1N Rh2 Nd2+ Kd5 e4 Qb2 e3 Bg3 Qd1 Nh3 Be5 Rf2 Ba6 c8Q Bb5 Qb7 Ba4 Bf1 e2 g6+ Kg8 g7 Kf7 Bg2 Qh1 Be4 e1B Rg2 Qe7 Re2 Bf2 g8B+ Ke8 Be6 Be3 f7+ Kd8 f6 d6 Qa6 Kc7 Bf5 Rc8 f8N Ra7 f7 Qh4 Ke6 d5 Ng1 d4 Ng6 Ra8 f8N Ra7 Kf7 Kd6+ Ne7 Kc5 Qb7 Kc4 Ne6 Bb3 Ng7 Ra8 Bf4 Qe1 Bg3 Rf8+ Kg6 Rf6+ Kh7 Ba4 Nc8 Nf2 Qa1 Nf3 Ne6 d3 Kg7 d2 Bg4 d1B Ng5 Bdb3 Rd2 Na6 Nf7 Rb8 Rb2 Nd2 Be2+ Kd4 Ncd6 Rc8 Ne8 Nb8 B2f3 Kc4 Nh3 Kd4 Qb1 Kc4 Rc2+ Kd4 Bd5 Kd3 Bfe4+ Ke2 Bc4+ Nd3 Bb5 Kf1 Qb2
2B5/3PN1R1/2Q3nk/nq2qP1p/pN4qP/B3rb2/2KbQ2q/1rB1Q1bB b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 f5 f4 Be6 c4 Bc8 Ra3 Nd7 Rf3 Nb8 cxd5 fxe4 f5 Bd7 Rf2 Bc8 Rf4 gxf4 d4 Kf7 Kd2 Kg7 h4 h5 g4 e5 d6 c5 d5 a5 g5 c4 b6 e3+ Kc2 a4 d7 c3 g6 f3 b5 e2 b7 e1B b6 f2 d6 e4 Na3 e3 Ne2 Ne7 Nf4 e2 Bg2 f1Q Rg1 Bd2 Nd5 e1Q Qe2 Qc7 d8Q Nbc6 b8Q Na5 b7 Kh6 g7 Ng6 g8B Be7 d7 Qh2 Qbc7 Rb8 Bh1 Bc5 Qde8 Bce3 Rg5 Bg1 Qc6 Qff4 Q8e3 Qg4 Ne7 Qeg3 Q3f2 Qe5 Bc4 Re8 Ba6 Qb5 Qfe1 Qhe5 Nd5 Re6 Ne7 Qh2 Nc4 Re3 Nb2 Qbe5 Nd3 Qb5 Nb4 Qhe5 Kb1 Qh2 Ba3 c2+ Kb2 c1Q+ Ka2 Qd1 Kb2 Qa1+ Kc2 Qae5 Bc1 Ra8 b8B Bb7 Bd6 Rb8 Bc5 Ba8 Bc8 Rb6 Qe6 Bf3 Qd5 Nh8 Rg7 Ng6 Qc6 Qa6 Nbd5 Rb1 B5a3 Qb5 Nb4
NRKbQ1q1/rP1n1Qqp/2b1P3/r1Bn4/Bb3Bk1/3b1np1/4R1PQ/1B6 b - - 0 1 illegal: No proof kernel
q4B1Q/3B4/2pqpRK1/1Pn1PR2/3rNP2/2rkr2R/Q2n1rb1/Q2Qb1b1 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Nc3 h4 Ne4 Kf7 Ng3 hxg3 Ra5 Ke8 Ra3 Rh5 Ra1 Rh8 f4 Kd7 b4 Kd6 e4 g5 Ke2 a5 Kd3 a4 h4 a3 h5 a2 b6 g2 b5 Kc5 b7 g3 d6 g4 e5 Ra4 h6 Nf6 d7 Ne4 h7 Na6 b8R Bb7 Ne2 g1R Rh3 g2 Nc3 g3 Ba3+ Rb4 Be2 Re1 Bg4 g1B Bf5 Rg8 h8Q g2 Ra8 Qb8 d8Q Re2 Qd7 Rf2 Qe6 Qd8+ Ke3 Qd6 d3 Bd5 d4+ Kc4 Rc8 Nd2 Ne4 Rg7 Qeg8 Ra4 Bd7 Nc5 Ra8 Rf7 Ra6 Bc6 d5 Rg7 Rb1 a1Q Rh5 Rh7 Rf5 Rh5 Rb3 Rh3+ Qg3 Qa2 Qa1 Bb7 Bb4 Ra3 Rd3 Rc3 Rc6 Qa8 Ba3 Qh6 Rcf6 Bc6 d6 Bd5 Be8 c6 d7 e6 d8Q Be7 Qa5 Qf8 Bd7 Qfb8 Qf3 Qd6 Bb4 Bd8 Q5a4 Ba5 Q4d1 Bh2 Qda4 g1R Q4a3 Rb1 Q3a2+ Rbb3 Ba3 Rh7 Qfd1 Bg1 Ng5 Bg2 Ne4 Rf1+ Ke2 Rg7 Rh3 Rgg3 Qa1b1 Rgd3 Qba1 Rd4 Bb4 Rff3 Ba3 Bh2 Bb4 Rfe3+ Kf2 Kd3 Ba3 Rb2 Bb4 Bf3 Ba3 Bg1+ Kg3 Bg2+ Kg4 Rbc2 Kh5 Bd8 Rh1 Na6 Qg8 Qc7 Qdb1 Nf3 Rf7 Bh4 Kg6 Be1 Bf8 Nc5 Qh8 Qd6 Qc1 Rb2 R7f6 Rf2 Qd1+ Nd2 Rh3
1K3b2/B3B1P1/2b1bNNP/1Bq1n1R1/8/1QpQr1Qr/b1P1qp1n/1rk2Q2 b - - 0 1 legal: proof: b4 e5 a4 b5 axb5 h5 g4 g5 d4 Ba6 f4 Bc8 Ra3 Ne7 Rg3 Ng8 dxe5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 a5 h4 c5 h5 a4 b6 f3 e6 c4 g6 a3 b7 c3 g7 a2 e3 a1R b5 g3 e7 g2 Kd6 Ke4 b6 f5 Ba3 f4 Bb4 Nc6 b8B Qe8 Kc7 d5 b7 d4 Ne2 g1Q Ba7 d3 b8Q d2 Ba3 Qf2 Rg1 Nf6 Rg5 Ng4 Qb3 Nh2 Qe1 Qg1 Qg3 d1B Qg2 Bf5 B3c5 Rh6 Kb7 Rd8 Bb4 Re6 h6 Rd3 Bd6 Qh5 e8Q Qg4 Qb8 Qh5 Na3 Rb1 Nb5 Qg4 Nc7 Qh5 Ne8 Bh3 Rg4 Qf2 Ka8 Qc5 Kb7 Qe1 Rg5 Qd2 Qg1 f2 Nf6+ Kf3 e4 Ke3 Nd4 Bg2 Nf3 Qe1 Ne5 Kd2 Kc8 Rh3 Ng6 Kc1 e5 Qee3 Bb5 f1B Qb4 Bgf3 Qg2 Bc4 Kc7 Ba2 Qb3 Re8 e6 Bd5 e7 f3 Qd8 f2 Kb7 Bg4 Qc7 Rc8 e8Q Qe2 Qee4 Re8 Qd3 Ree3 Be7 Bge6 Qcg3 Ne5+ Kb8 Bc6 Qf1+
r1b4b/2R3r1/PpQKn3/QPB5/B2Pk2N/Bn1Nnq1n/2Bp2q1/1q1Q4 b - - 0 1 illegal: No proof kernel
B4N1R/1p2BBqq/5Q1Q/k1P2r1b/Np1rqn2/1P1P2b1/Q2K3n/2B3bq b - - 0 1 illegal: No proof kernel
q1Q1qbn1/NP1P2pQ/3B3N/1qR3q1/b2Q1N1n/1p1rR3/1Pbk1K2/6rQ b - - 0 1 illegal: No proof kernel
1n1r1q2/5q2/P7/P1B1q1Qk/4BR1B/pN2RB1b/P2nrp1b/QbbK3Q b - - 0 1 illegal: Other
1bn4n/2B2q1Q/6p1/1b1P1rnQ/2P2kP1/Bp1R3q/n1RKR2q/2rB2NR b - - 0 1 illegal: No proof kernel
4b3/1R1RR3/n1Qp4/rQ1Pb2N/r2kp1K1/1q1n1n1B/1qP1PQ2/R1N1nq2 b - - 0 2 legal: proof: b4 b5 g4 f5 a4 fxg4 axb5 h5 Bb2 c5 Be5 h4 Bg3 hxg3 bxc5 Rh6 Nf3 Rh7 Ng1 Rh8 h4 Kf7 d4 Ke6 f4 Kd5 f5 g5 f6 e5 h5 a5 c6 g2 Kf2 a4 Kg3 d6 f7 a3 h6 a2 h7 e4 b6 Nf6 b7 Na6 b8Q Nd7 c7 Ndc5 Qb6 Bg7 f8R Bd7 c8R Be5+ Rf4 Nd3 Nd2 Be8 Rc4 Qb8 Nh3 g1N Nb3 Nf3 Rb4 Nfe1 Nc1 Rf8 h8Q Rf5 Qa7 Qb7 Rb2 Qb3 Qd7 Kc4 Qf8 Kc3 Qb5 Ra7 Rab1 a1Q Ra2 Qab2 Raa1 Nc7 Qf6 Ra4 Rg1 Na6 d5 Kd4 Qc6 Ra5 Qf8 Rf7 Qd2 Ra4 Qa5 Ra7 Qab5 Ra8 Rh1 Ra7 Nf2 Ra5 Rh7 Ra4 Re7 Ra5 Kh2 g3+ Kh3 g2 Kg4 g1N Bh3 Ngf3 Nh1 Ra8 Rff7 Ra4 Kf5 g4 Ng3 Ra5 Nh5 g3 Kg4 g2 Rd7 Ra7 Rfe7 g1Q+ Bg2 Qf1 Bh3 Ra4 Qf4 Nab4 Qh2 R7a5 Qg3 Na6 Qh4 Ke3 Qf2+ Kd2 Qb8 Q3c3 Qg2 Ke3 Rc7 Qbb4 Rcd7 Kd4 Qbb7 Qbc4 Rb6 Qb2 Qf2+ Kc3 Qb5 Qcb3 Q7c6+ Qc4 Qh2 Kd4 Rbb7 Qcb3 Qf2+
r1qBnq1B/Q1Rn1r2/8/b1p3rb/P1qB1QPK/2Ppr3/B4R2/1QN4k b - - 0 1 illegal: No proof kernel
1bb3qn/Qr1B2Q1/1p1R2rq/1Kp1R3/P3nr1P/1RP2N1q/Q4Qq1/3N1k2 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 h6 g6 Qe7 g7 Qd8 g4 Bd6 g5 Be7 g6 Bf8 Bg5 hxg5 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 a4 Ke4 h4 Ke3 e6 Kf2 e4 c5 e5 d5+ Kb5 f5 c3 b3 e7 d4 e8Q d3 e6 d2 e7 g4 Qf7 g3 e8Q f4 Bg2 b2 Qdb3 d1Q Qe5 f3 Qfe7 Rh6 Qa3 Q1d6 Qe8 Ne7 g8R Nd7 g7 Nf6 Qb3 Ne4 Qd7 Ng6 Na3 b1R Qf6 Nh8 Nc4 Rg6 Bh3 g2 Nb2 Kf1 Ra3 f2 Nd1 b6 Qff5 Rb8 Qa7 Rb7 Qf7 Qd2 Bd7 Bd6 Re8 Bb8 g8Q Qh6 Nf3+ g1Q Qgg7 Rb2 Re5 Qg8 Rh3 Qg2 Qff6 Rd2 Qa2 Rd6 Qff7 Rdf6 Rb3 Rf4 Rg3 Qh3 Rgg5 Qg2 Rd5 Qh3 Rge5 Rfg4 Nh2+ Kg2 Qa3 f1Q+ Rd3 Kg1 Qa2 Qfg2 Qf3 Rf4 Rd6 Qb2 Qg3+ Qbg2 Nf3+ Kf1 Qgf2+
n3BK1Q/1p3R2/1b3RQ1/NP1q2rR/rrqk2n1/pPPb4/4nRN1/3n2N1 b - - 0 1 illegal: No possible last move, all moves rejected
1Rbn2RQ/K1pq1q2/1p2RqbP/2NQ1B1B/1Pr1r1b1/2b3B1/7P/3B1k1n b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 a4 Nc3 Bd6 Nb5 Bf8 b4 exf4 Nd4 d5 Nb3 axb3 cxd5 Qe7 Kf2 Qd6 Ke1 Qd8 a4 Ra5 Nf3 f5 Ra3 b2 Ne5 b1B d4 Ke7 Kd2 Kf6 d6 Kg5 Kc3 Kh4 Kc4 g5 e4 f3 d5 f2 h6 f4 d7 f3 d6 Nf6 Qd4 Rg8 Bf4 g4 Qa1 Ra6 a5 Rc6+ Kb5 Nh5 a6 g3 a7 g2 a8B Kh3 Ra4 b6 Bd3 Rg3 Re1 g1Q Ra6 Qg5 d8Q Rc4 d7 f1B Bc6 Rg4 Ra8 Kg2 Qd4 Nf6 Bg3 Bg7 Qh8 f2 Bc2 Qh1 Bd1 Be2 Qd6 f1Q d8R Rf4 Bd7 Nc6 Rg8 Ng4 Rb8 Nf2 Bg4 Qe7 Nd7 Nd8 e5 Qf7 e6 Bg6 e7 Bc3 Nc5 Kg1 Bh5 Qhd5 e8B Nh1 Bd7 Bg4 Qe6 Qd6 Qd5 Rfd4 Re5 Q1f6 Bf5 Re4 Ree8 Kf1 Re6 Bd7+ Ka6 Bc8+ Ka7 Qc6 Bc2 Qcd7 Bd1
1QB1r3/P3PK1Q/b1Q1p1Qq/5n2/1pk1qb1B/2r1RR2/NPrb4/2B3rn b - - 0 1 illegal: No proof kernel
Rn1BRrQ1/rkB1N2P/1R3Qb1/R2P3p/2q4n/3B3q/pbn1nK1P/7b b - - 0 1 illegal: No proof kernel
1N1nRR1K/p1qqb3/r1br1NP1/krn1Q2p/1R4P1/1qB4q/4Q1QP/2Q5 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 e5 d4 exd4 e3 c4 Bd3 cxd3 Kf2 f5 Kg3 d5 Kf4 Kd7 Ke5 Kc7 c4 Kb6 b4 h5 g4 d2 e4 d3 c5+ Kb7 b6 d4 g6 f4 b5 f3 Ra4 f2 Bb2 f1R Nc3 Rf3 Nd5 Rf6 Nf3 Rf4 Rf1 Bd7 Rb4 Na6 Nf6 Ne7 Qe2 d1Q Bc3 d2 Rf2 d3 Nd4 Qb1 Nc6 d1Q Nb8 d2 Rf1 Qd3 c6+ Kc8 c7 Kb7 Qg2 Bc6 c8R Q8d7 Re8 Qc7+ Ke6 Q1c2 Kf7 d1Q e5 Qb3+ e6 Qh3 Rf3 Nc5 Rf2 Nd5+ e7 Re4 Rf3 Re6 Rf1 Rh7+ Kg8 Nf4 Rf3 Rf7 Kh8 Rd6 Rf2 Nfe6 Rf1 Nd8 Rf3 Qd7 Rf2 Kc8 b7+ Kc7 Rf5 Kb6 Rf1 Ka5 b6 Rd4 Na6 Rg7 b8Q Qf7 Rb5+ Ka4 b7 Qc7 Nd5 Qc8 Qbg3 Qb1 b8Q Qc7 Qb7 Rb8 Q3f3 Rb4 Qfe2 Rb2 Qb6 Rb7 Nb8 Ra2 Rb2 Qc2 Rbb1 Qd1 Qbb2 Rb5 Qc1 Qe6 Rf6 Rf7 Rf3 Qed7 Rb2 Rf6 Rb4+ Ka5 Rff4 Rd6 Rf7 Qb3 Nf6 Ndb7 Rc8 Kb6 e8Q Ra6 Rd8 Ka5 Q8e5 Be7 Re8 Nd8 Rff8
rQ6/3q4/bb2p3/4r2B/qP1q1BN1/p1k1PP1r/QR1NQ1Qr/Kn2n1N1 b - - 0 1 legal: proof: c4 b5 b4 h5 a4 d5 cxd5 f5 axb5 h4 g4 fxg4 Ra3 Nc6 Rf3 Nb8 Rg3 hxg3 d4 Kf7 Kd2 Kf6 Kc3 c5 Kb2 a5 h4 g5 d6 c4 d5 Ke5 f3 g2 d7 a4 b6 a3+ Ka2 g3 d6 g4 h5 e6 h6 c3 b7 c2 h7 Na6 b8Q Nf6 Nd2 Kd4 Qe1 Nc5 Qb6 Ba6 Qb8 Nd5 Qa7 Kc3 Rh2 Nd3 Qd1 Ne1 Qf2 Qc7 d8Q Qd7 Nh3 g1Q Qg5 g2 Ka1 g3 Qg6 Qa4 d7 Bc5 d8N Bb6 Nc6 Qh1 Qg4 g1R Ne5 Rg2 Ng1 Qd7 Qg5 Qa4 Ng4 Qd7 Rh4 Rh2 Bh3 g2 Rh5 Nf6 Qd5 Ne4 Qa2 Qa4 Nc4 Qd7 Bf4 Nd2 e3 Nb1 Rh6 c1Q Qde2 Qc2 Nd2 Qca4 Qff1 Rhf8 Rg6 Rf5 h8Q+ Re5 Qb8 Qd4 Nf2 Qdd7 Bg4 Rh3 Bh5 Rh2 Ngh3 g1R Ng4 Rg3 Ng1 Rgh3 Rg7 Qg2 Rh7 Qf2 Qg2 Qh4 Re7 Bc5 Nf6 Qd3 Bg5 Bb6 Rc7+ Qhc4 Rc8 Qdd7 Bf4 Qc5 Ng4 Qc4 Qd1 Kd3 Rc5 Qcd5 Rc2 Qd4+ Rb2 Kc3 Qde2
1RR2k1n/qNp1b2R/p1rq4/1Q2Q1r1/b1PPqqPn/Nn6/K4BQ1/4Q3 b - - 0 1 legal: proof: a4 b5 axb5 h5 e4 d5 g3 dxe4 Bg2 h4 f4 g5 fxg5 h3 Kf2 hxg2 Ke2 Bd7 Ke1 Bc8 d4 f5 Kd2 e5 Kc3 f4 Kb3 e3 c4 e2 h4 e1Q h5 e4 g6 f3 b6 e3 b7 e2 h6 f2 h7 f1Q g7 Be6 Ka2 Be7 b4 Nh6 b5 Nc6 b8Q Rg8 h8Q Qa5+ Na3 e1Q b6 Bd7 b7 Qf4 Nf3 g1N Ne5 Nf3 Be3 Nf7 Rh7 Nh4 Bf2 Qee4 Qe1 Qc5 g4 Na5 Nc6 Nb3 Rb1 a6 Qa7 Rb8 Qa8 Qcd6 Rb2 Qc8 Nd8 Ba4 Rb1 Qcf5 Rb2 Qfc5 Rb1 Rf8 g8R Qa7 Qe5 Rc8 b8Q Nh8 Qbb7 Rb8 Qbd5 Rb6 Qb8 Rc6 Qbb5 Qeg6 Qg2 Qge4 Rg5 Rf5 Rg8+ Kd7 Nf7 Rh5 Rc8 Rg5 Nd8 Ke8 Qbd5 Na5 Rbb8 Nb3 Qb5 Kf8 Nb7+
1bNQq1N1/1Kb1n1B1/1bp5/kp4B1/1r1n4/nBP3Qb/N2q1P1P/B2Rr3 b - - 0 1 legal: proof: e4 a5 a4 f5 b4 axb4 g4 h5 gxh5 d5 exd5 Be6 Ra3 Bd7 Re3 Bc8 Re4 fxe4 Ke2 Kd7 Ke3 b5 Kd4 g5 Kc5 e5+ d6 e3 d4 e4 a5 e2 a6 e1B a7 g4 d5 b3 h6 g3 h7 b2 Bc4 g2 Bd2 e3 Nf3 g1Q Ng5 e2 Nc3 b1N Nge4 Na3 Bh6 Qe8 Bb3 Qg5 Na2 Ba5 Bg7 e1B Qd3 Qd2 Qg3 Nc6 Nf6+ Kd8 Rg1 Nge7 d7 Nd4 Ng8 c6 Rh1 Rb8 a8N Bc7 Nb6 Ra8 Rf1 Ra4 Rh1 Rb4 Rg1 Ba6 Nc8 Bb8 Kb6 Bb7 Bf6 Bh6 Bg7 Bhf4 Nf6 Rf8 Ng8 Rf6 h8B Re6 Kc5 Kc7 d8B+ Kd7 Rf1 Bfc7 d6 Re4 Na7 Bc8 Rh1 Ng6 Bg5 Ne7 Rg1 Kd8 Rf1 Bh3 d7 Bd6+ Kb6 Bdc7+ Kb7 Bb6 Nc8 Re5 Ka8 Kc7 Rg1 B6a7 Nd6 Kb6 Nc8+ Ka5 d8Q+ Bb6 Kb7 Qf4 Rf1 Bc3 B5h6 Qd2 Rd1 Re1 Be3 Ndf5 Beh6 Bce5 Bg5 Bec7 Ba1 Nd4 c3 Bf5 Bhf6 Bh3 Bg7
1q3n2/1pQ4R/NbN1N1bP/1qNP2Q1/1Pp1r3/Kb1Rn3/B5kb/Rr5q b - - 0 1 legal: proof: g4 d5 e4 h5 c4 hxg4 cxd5 f5 exf5 a5 b3 a4 Bb2 a3 Ba6 axb2 Bb5+ Nc6 Bf1 Nb8 d4 Kf7 Kd2 Kf6 Kc2 Kg5 a4 Kf4 h4 e5 a5 g5 d6 c5 b4 e4 Kb3 e3 a6 g3 d5 g4 a7 e2 h5 e1Q d7 g2 f6 g3 f7 Nh6 Qc2 Bd6 f8R+ Nf5 Ka3 Qe2 Nd2 b1B Nb3 Ba2 Nf3 g1Q Ne5 g2 Nc6 Qb5 Bc4 Kf3 h6 Bg3 Rf7 Bh2 Rh7 Ne3 Qc1 Qg8 d8Q Bf5 Qg5 Bg6 Qc3 Qb1 Rd1 g1B Rd3 Nd7 Qc2 Rc8 a8N Nf8 Nc7 Re8 Qc3 Re4 Na6 Qf1 Qce5 Qg2 Qc7 Qh1 Qgd8 Kg2 f4 Bf2 f5 Bfg1 f6 Bf2 Nbd4 Bb3 Ne6 Bfg1 Rd7 Rh7 f7 Rg7 Qe7 Ba2 Bb3 c4 Nec5 Qh8 Bc2 Rg8 Bb1 Bb3 Ba2 Qe5 Qb6 Qb8 Qc7 Ne6 f8N Rg7 Nh7 Nf8 Ng5 Rf7 Nge6 Rf1 Qed8 Rb1 Rh7 Nd1 Na4 Bb6 N4c5 Ne3 Qg5+
3Q4/1qQ1p1R1/2Pn1r2/1RPk4/1q2N1Q1/pR1nP3/1nB1rN1K/1n1bb1Qb b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h5 g4 fxg4 Bf4 h4 Bg3 hxg3 c4 Kf7 h4 Ke6 f4 a5 b4 g5 h5 d5 c6 a4 e3 d4 b6 a3 b7 d3 h6 d2+ Ke2 g2 Kf2 g3+ Kf3 g4+ Ke2 Qa5 h7 Bg7 b5 Ra6 Ra2 Bc3 Qa4 Nf6 Ra1 Ne4 Nh3 g1Q Nf2 g2 Rh5 g3 Kf3 Qb4 Bd3 Qh1 Bc2 Nd7 b8Q Ndc5 Qc7 Nd6 f5+ Ke5 Ra2 Nd3 f6+ Bf5 f7 Nb2 f8Q Rg8 Ke2 g1N+ Kf1 d1B Qfd8 Be1 h8Q+ Rg7 Rh7 Be4 Nd2 Qf3 Qhf8 Ne2 Qg8 Nf4 Kg1 g2 Kh2 g1N Ra1 Rg5 Rb1 Nfd3 Rg7 Bd5 Nde4 Ne2 Rh7 Rf5 Qg1 Nc3 Rg7 Rb6 Nc5 Rf6 Nce4 Qf5 c5 Qc8 Kh1 Rb8 b6 Qb7 Kh2 Ke6 Ng3 Bh1 Nge4 Qa8 b7 Kd5 Qf8 Rd8 b8R Qa6 Rb5 Qb7 Qh8 Rb8 Qh3 Rh8 Qa8 Rh5 Qad8 Rhf5 Ng4 Rf2+ Qhg2 Re2 Ngf2 Nba4 Rb2 Nb1 Rb3 Nab2 Qg4
QQ2R2b/bpRnPk1K/b4q2/4Pr1B/1Bp3bb/NQP2Q2/Br6/bn6 b - - 0 1 illegal: No possible last move
3RQR1b/P3kPrN/QB3rbp/1b1r3P/1K6/3prq1R/R1b1Q3/2n1n2N b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 gxf5 Ra4 Nh3 Ra5 Ng1 Ra8 d4 e6 d6 Ra3 d7+ Ke7 d5 Ra7 d6+ Kf7 Bg2 Ra8 Bd5 exd5 Kd2 b5 e4 c5 h4 g5 f4 g4 a4 h6 f6 g3 a5 g2 h5 c4 a6 b3 Kc3 b4+ Kb2 d4 a7 Nc6 f5 Bg7 e5 Nge7 Ra6 c3+ Ka1 b2+ Ka2 c2 Kb3 Rf8 Ra4 Ng6 Bf4 c1R Rh3 Ba6 Be3 Nf4 Ne2 g1R Nd2 b1B Ne4 Rc5 N2g3 Nd3 Nh1 Rd5 Ra2 Bb5 Qe2 Ne1 Bf2 Qc7 d8Q Bh8 d7 Rg7 Qc8 Qb7 d8R Re8 e6+ Kf8 f7 Bc2+ Kb2 b3 Ka3 b2 Nf6 b1B Nh7+ Ke7 f8R Na5 Kb4 Nb3 Bg1 Qc6 Qa6 Nc1 Bf2 Rb8 Be3 Rb6 Bg1 Rd7 Be3 Qf3 f6+ Kd6 f7 Ke7 Bf2 Bg6 Be3 d3 Bd4 Rc6 Bb6 Rd5 Ra8 Kd6 e7 Bc2 Rb8 Kd7 Ra8 Rf6 Rb8 Rd8 e8Q+ Kd6 Q8e4 Re8 Qc4 Ree6 Qc6+ Ke7 Rbd8 Re3 Qe8+
2rrr1RB/1N1b2pb/r5Pb/2PpPk2/4q3/n1K3N1/QR1NN1R1/3Q1nb1 b - - 0 1 illegal: No proof kernel
4RrrR/Q4nn1/1brQ2N1/1RB3Q1/1n1p3P/1b1Qp1N1/q3PP2/rkn3K1 b - - 0 1 legal: proof: d4 b5 g4 h5 a4 c5 axb5 cxd4 Bh3 f5 gxf5 Kf7 Bg4 hxg4 Qd2 Ke8 Qd3 Rh6 Qd1 Rh8 Kf1 Kf7 b4 Kf6 h4 Ke5 c4 d5 c5 a5 c6 g5 b6 d3 f6 Kd4 b5 e5 f7 d2 c7 a4 b7 e4 b6 g3 Na3 Kc3 Rh2 d4 Rh1 g4 Nc4 a3 Ra2 Ra6 Nh3 g2+ Kg1 Bc5 f8Q Nc6 b8Q Nb4 b7 Rc6 Qa4 d1N Qh6 Be6 c8R Qa5 Qg7 Nh6 Ne5 Bb3 Nf4 Bb6 Nfd3 Nf7 Qb5 Ne3 Rg8 Nf5 Bb2+ Kc2 Qg5 e3 Nf4 Ng7 Nh5 Kb1 Re8 Rf8 Qa7 Qa6 b8Q Qa4 Kh2+ g1R Ng6 Qa5 Qd6 g3+ Kh3 g2 Kh2 Re1 Ng3 g1R Bc3 Rc1 Rc2 a2 Qd3 a1N Ra2+ Nbc2 Bb4 Rce1 Bc5 Ref1 Qb5 Nb4 Rc2 Rd1 Qd3 Qa2 Rc3+ Bc2 Ra3 Nb3 Ra5 Nc1 Rb5 Rge1 Rg1 Rf1 Nf5 Rde1 Rg4 Rg1 Ng3 Rd1 Rge4 Rdf1 Ra8 Rd1 Ree8 Rdf1 Qc4 Bb3 Qd3+ Kb2 Qgd5 Ne6 Rec8 Rd8 Ne7 Ka1 Nh1 Rd1 Qg6 Ncd3 Qdh5 Rg4 Ng3 Rb1 Qhe5 Nc1 Qd3 Kb2 Qef5 Ra1 Kg1 Rg7 Qg5 Rh8 Qd2+ Kb1 Ng6 Rd8 Rc7 Rb8 Rd7 Rbc8 Rd8 Rb8 Rg8 Rf8 Rh8 Rgg8 Re8 Ng7 Qd3+
4N3/1q2R2K/1np2p1b/1nP2n2/2rB1rPR/2bn1BQ1/R3RbP1/2kB2Qb b - - 0 1 illegal: No proof kernel
4R1K1/Rp6/1PnP2PQ/1pbB4/rQ2b1qB/4rB1r/nbb1Bk2/3RN1r1 b - - 0 1 legal: proof: f4 d5 h4 e5 b4 exf4 c4 g5 cxd5 a6 hxg5 Nd7 b5 Ne5 b6 Nd7 Na3 Nb8 Nb5 axb5 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 h5 a4 f3 d4+ Kc4 e4+ Kc3 g6 c5 g5 f4 d6 f2 g7 f3 g6 h4 a5 h3 d7 h2 Ke6 c4 Kf7 Nf6 g8B Nd5 a6 Bc5 a7 Nb4 d5 Qh4 d8R Qg4 d6 Bf5 e5 Na2 e6 Bc2 e7 Rh3 e8B Nc6 Qe1+ Kd4 Bg5 c3 Be2 f1R Bh4 f2 Nf3+ Ke3 Qb1 Rg1 Ne1 f1B Qb4 Bg2 Bd7 Bf3 Re8+ Bfe4 Kf8 Rgg3 Bd5 Kf2 Rg1 h1R Kg8 R1h2 Bf3 Rg2 Rh1 Rg1 Rd1 Rb8 a8Q Rc8 Qaa3 Ra8 Qc1 Ra4 Be2 Rh2 Qh6 Rh3 Bf6 Re3 B7e6 Bf5 Bdf3 Bce4 B6c4 c2 Bd5 c1B Bh4+ Rgg3 Rd3 Bb2 Ra3 Bc2 Ng2 Bfe4 Rd1 Rh1 Ne1 Rg1 Qc3 Rb4 Ra7 Ra4 Bg5 Rh3 Qb4 Ba3 Be7 Bb2 Bh4+
b1R5/6Kp/6R1/2n3pP/NPR1rBkP/n2Q1R2/1r2n1qr/bNNr2Qn b - - 0 1 illegal: No proof kernel
r1B4K/1k4Qb/1Nr5/2bnQQ1N/1p2p1n1/1P1b1bP1/1qr1P1Q1/1RN1r1R1 b - - 0 2 legal: proof: c4 g5 Qa4 h5 Qd1 d5 cxd5 g4 Qc2 g3 fxg3 Rh7 Qd1 Rh8 Qb3 a5 Qd1 h4 Na3 h3 Nb1 hxg2 b3 a4 Bb2 a3 Qc1 axb2 Qc2 Qd7 Qd1 Qd8 Kf2 Kd7 Kf3 e5 Ke4 b5 Kf5 c5 h4 f6 Kg6 Kc7 d4 e4 a4 c4 a5 c3 d6+ Kb7 h5 b4 d5 c2 h6 c1R h7 f5 a6+ Ka7 d7 f4 d6 f3 Nh3 g1R Nc3 b1B Nf4 f2 Bh3 f1B Na2 Rc5 Nc1 Qa5 d8Q Rc7 d7 Rc5 Nh5 Rc2 Qf6 Qa3 d8Q Bg2 Qdf1 Bc5 Kg7 Qb2 Qe5 Bf3 Qd5 Bf5 Qg2 Re1 Rg1 Ne7 Qd7+ Kb6 a7 Rc8 h8Q Bh7 Qf5 Nbc6 Qg8 Rc7 Kh8 Kb7 Bg4 Nd5 Bh3 Rb8 a8N Rcc8 Nb6 Ra8 Qf4 Rc7 Bd7 Rcc8 Qf5 Rc7 Qef6 Ne5 Qgf8 Ng4 Q6e5 Rc6 Qg8 Rd2 Qgf8 Bc2 Rb1 Bd3 Qg8 Rc2 Qgf8 Bg8 Qfg7 Bh7+ Bc8+
n4K2/Q7/1B1PbNRR/2pp2R1/2nrb3/1rPQ2RB/nB1P1r1r/nq2k3 b - - 0 2 legal: proof: f4 b5 g4 g5 a4 Bg7 axb5 d5 e4 Be5 Nc3 Bd6 e5 h6 exd6 gxf4 Ne4 h5 g5 Nh6 Nf2 Ng8 Ng4 hxg4 Ke2 Kd7 Kd3 Ke6 Kd4 Kf5 Kc5 Ke4 b4 a5 h4 e5 g6 f5 h5 f3 b6 g3 b7 a4 g7 a3 c3 f4 b5 a2 b6 g2 h6 f2 h7 f3 Rh2 Ne7 g8Q Nf5 Qg5 Ra4 Rb1 a1N Be2 f1R Rb3 f2 Rh6 Na6+ Kc6 Rd4 b8B Ne3 b7 Be6 Qe7 Nc4 Ba7 Qb8 Bg4 Kd3 Nh3 g1R Rb1 e4 Ng5 e3 Bb6 e2 Bb2 e1N Rg6 Nec2 Bh3 Rgg4 Qc1 Ke2 Ne4 Rh4 Nf6 Ncb4+ Kb5 c5 Qc2 Rf8 h8R Na2 Kc6 Nc7 Rhh6 Na8 Qg7 Rd1 Qd3+ Ke1 Qe7 f1B Rg3 Qd8 b8R Bg2 Qa7 Be4 Rb7 Rh5 Rbg7 Qb8 R7g5 Rf7 Bg2 Rh2 Bh3 Rf8 Rhg6 Bf7 Kd7 Be6+ Ke7 Qb7+ Nd7 Rff2 Ke8 Rc1 Nf6 Rd1 Kf8 Qh7 Ba3 Qb7 Rb4 Rb1 Bc1 Rb3 Bb2 Qb8+ Bd8 Bh1 Rb7 Bf3 Ba3 Rb4 Rh7 Be4 Rhh6 Rb1 Bc1 Qb3 Bb6 Qd1 Bf1 Rb3 Bb2 Qb1 Bh3
4nr2/1pnk4/1bnQnb1B/R1Q2r1P/2PbRBb1/1P2R1N1/6pK/3Bq2R b - - 0 1 legal: proof: g4 c5 e4 h5 d4 hxg4 dxc5 a5 Nd2 f5 exf5 a4 b3 a3 Nc4 Ra7 Nb2 axb2 Be2 Ra5 Bf1 Ra8 f4 b1N Kf2 d5 Kg2 e5 a4 g5 h4 e4 c4 d4 f6 g3 c6 e3 a5 d3 f5 e2 c7 e1B a6 g4 f7+ Kd7 h5 d2 f6 Qe8 a7 Nc3 Ne2 Nb5 Ra3 Bf2 Qe1 d1N Nd4 Nc6 Bg5 Nb2 Be2 Bg7 f8R Nd3 f7 Nc5 Bd1 Ne6 Ne2 Bb6 Bf4 Nf6 Ra5 Qe7 Qc3 Ne8 Qe5 Bf6 Rg8 Rh7 f8B Rf7 B8h6 Qb4 Rg7 Qe1 Rg6 Rb8 a8Q Bd4 Qa7 Ra8 Qac5 Rf8 Rf1 Rf7 Kh1 g2+ Kh2 Rb8 Rh1 g1B+ Kg2 g3 Rg4 Bgf2 Kh3 g2 Ng3 Bd8 Kh2 Rf5 Bc1 Bf6 Re4 Ra8 Bcf4 Rb8 Qb4 Bb6 Qbc5 Bd4 Qcd5+ Ke7 Re3 Bd7 c8R Nbc7 Qb5 Nd6 Rg8 Rf8 Rg4 Nde8 Qbc5+ Kd8 Bfg5 Bc8 Rge4 Kd7 Bf4 N6g7 Ra6 Rg5 Nf5 Kd8 Ng3 Bg4 Qb4 Nge6 Qbc5 Kd7 Ra5 Rf5 Qed6+
1n1Q1B2/1b1P1nb1/1BBnKpb1/b1Q1b3/1NQBp1N1/5k2/1R1rPP2/5r1r b - - 0 1 illegal: Other
1rk2r1R/b7/p1NP3p/Pr1n1R1P/3Nbb2/1N1n1QR1/brnQ2K1/5BR1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 bxc5 e3 Qe2 e6 Qd1 e5 f5 g5 Bb2 e4 Be5 Qd5 Bf4 Qe6 fxe6 gxf4 g4 Kd8 d4 b5 a4 f5 c4 h6 h4 f3 a5 f2+ Ke2 b4 d5 f4 c6 b3 h5 a6 g5 b2 c5 Bd6 g6 Ne7 g7 Nd7 g8N Ne5 Bh3 f1R Nf3 Nd3 Qd2 Rb8 Nd4 Bb7 c7+ Kc8 Ra3 Rc1 Rb3 Rc2 Kf1 e2+ Kg2 e1B Rg1 Bf2 Ra3 Be5 d6 Nd5 Rc3 e3 Rb3 Bc6 e7+ Bd7 Rc3 e2 Rb3 Bf5 e8R+ Kd7 c8R Rb5 Ne7 e1N+ Kf1 f3 Nec6 Rg8 Rf8 Bf4 Ra3 Be6 Rf5 B2e3 Rb8 f2 Ra8 Rgb8 Bg2 R8b7 Rh8 Rb8 Bh3 Bg8 Rc3 Kc8 Ra3 Nf3 Kg2 f1R Rb3 N3b4 Ra3 Ne5 Rb3 Bf2 Rg3 B2e3 Qe2 Rf3 Nd2 b1B N2b3 Ned3 Qd2 Bf2 Ne5 Ba2 c6 Rb2 c7 Nc2 Nec6 Bb1 Kh2 B2e3 Bf1 Ba2 Kg2 Bf2 Ne6 Ba7 Ned4 Re3 Qf2 Re8 Qf3 Rf8 Nc5 Bh7 Ncb3 Kb7 c8Q+ Ka8 Qe6 Kb7 Qee4 Kc8 Qee2 Bg6 Qd2 Bh7 Rf7 Be4 Rf5
r2Rb1nQ/1KR1QQ1p/N3nr2/2P2N1P/1b1R1B2/P1r4n/bkpq3p/4R3 b - - 0 1 illegal: No proof kernel
n1Q2Q2/1B1K4/2QQp1Np/2Bb1qPP/q7/P2q1kr1/p4bB1/rr1Nn2R b - - 0 1 illegal: No proof kernel
5nQ1/1Q1R3k/pK1p4/QN1B4/3PbpBq/rPrN1P1Q/b1q5/2br2Nn b - - 0 2 legal: proof: h4 c5 d3 g5 hxg5 e5 Kd2 c4 b3 e4 Kc3 e3 Bd2 exd2 a4 b5 axb5 Nc6 Ra2 Nb8 Kd4 c3 Rb2 cxb2 Kc4 Be7 Kc3 Bf8 Kd4 f5 e4 Kf7 g4 Kg6 c4 h5 e5 a6 e6 f4 f3 h4 c5 h3 b6 h2 b7 Kg7 g6 Ra7 e7 Rh7 e8Q Nf6 g5 Kh8 c6 Ne4 c7 Ng3 g7+ Kg8 Nc3 b1B Qe7 Nf5+ Kc5 Ng3 d4 Rh5 Kb6 Ba2 Qa1 d1R Bh3 Kh7 Nb5 Ra8 Qf7 Ba3 Bg4 d6 Qe6 Bc1 g8B+ Kg7 g6 Qh4 Qe4 Bf5 c8Q Rg5 Qec6 Be4 Bd5 Kh6 g7 Kh7 Qac3 Rh5 Qa5 Rf5 Kc7 Nd7 b8N Rg5 Q6b7 Nf8 Nc6 Rf5 Qd7 Rc8+ Kb6 Rh5 Ne5 Rc3 Nd3 Rf5 Nh3 Re5 Re1 h1Q Re3 Qh2 Ng1 Nh1 Qdc8 Qc2 Re2 Bg6 Re1 Rh5 Re7 Be4 Qe6 Rf5 Rd7 Re5 Bh5 Rg5 Qh3 Rf5 Bg4 Rh5 Bc4 Rc5 Bce6 R5c4 Bf7 Ra4 Bd5 Ra3 g8Q+
NK5n/1p1pP1q1/1p1P2R1/3br1N1/N1NrQBbP/R1Q1br2/3q4/1n1R1k2 b - - 0 1 illegal: No possible last move, all moves rejected
1R3r1q/P2rB1nB/p2bQ1qR/2q3Qb/Q2p3k/2nP1QN1/2pP1b2/R4K2 b - - 0 1 illegal: No possible last move, all moves rejected
R1r1NnK1/qqp1P3/2PQR1B1/QR4R1/p1bQp2N/2r1k1n1/4P1q1/3br3 b - - 1 2 legal: proof: d4 b5 a4 e5 axb5 h5 g4 hxg4 Ra3 f5 Kd2 e4 Ra4 Bd6 Ra1 Be5 dxe5 Nc6 Ke1 Nb8 Bg5 f4 Bh4 Qf6 Bg3 fxg3 Ra6 Qh4 Ra1 Qd8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 Kf4 h4 g5 c4 a5 b4 d6 h5 g2 c5 a4 h6 g3 e6 g4 b6 Qh4 e7 Nc6 h7 Nd8 b7 Nc6 b8R Nd8 c6 Qh6 b5 Ra7 b6 Qg7 b7 Bf5 Rh6 Ne6 Nf3 g1R Nbd2 g2 Nc4 g3 Nh4 Nf8 Ra8 Qb2 b8R Rb7 Re6 Rb3 Rb5 Nh6 f3 Rg8 h8Q Rc3 Qhd4 Bg4 Rb1 Nf5 Rc5 Qb8 Rbb5 Qb7 Qe1 Rh1 Qed1 g1Q Bh3 g2 Qe1 Rc1 Qa5 Bh5 Bg4 Bf7 Bh5 Rc3 Bg6 Qh2 Qa6 g1Q Qa5 Kg3 f4 Qhg2 Rd8 Kg4 Ra8 Ng3 f5 Kf4 f6 Qe3 Bh7 Rh8 Bg6 Bg8 f7 Re1 Nb6 Qeg1 Nd7 Q1f2 Nf6 Qfg1 Qd1 Ke3 Ne8 Kf2 Kd4 d5 Ke5 d4 Kf6 d3 Kg7 d2 Rg5 Ke3 Qa1 d1B Qb2 Nd7 f8Q Q1f2 Qf6 Nf8 Ree5 Bc4 Qd6 Qf5 Re6 Qc5 Qa1 Qca7 Rg4 Rh5 Kg8 Rd5 Rg5 Rd4 Qda3 Rd8 Qd6 Rc8 Qb2 Ra3 Qg7 Rc3 Qgd4+
N3n1q1/b1qkB3/R1pR4/QrpnBPqB/2P2P2/BR5b/p2r3r/1Q2K3 b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 d6 h4 gxh4 Nc3 Kd7 Na4 Ke8 Nc5 dxc5 b4 e5 g4 h5 d4 h3 f3 h2 g5 e4 d5 e3 g6 e2 d6 h4 g7 h3 b6 Rh5 b5 Nc6 b7 Nf6 b8B Ne7 g8Q Kd7 b6 Ned5 b7 Ne8 Ra6 Qg5 Ba3 Bg7 Qb1 Bd4 Qh8 Qg8 Qe5 Rg5 Kd2 e1R Bc4 Rd1+ Ke2 Rd3 Ke1 Rd2 Ne2 Rg2 Rf1 h1Q Nf4 h2 Be2 Qg1 Ne6 h1Q Bd1 Rh2 f4 Q1g5 c3 Qe4+ Be2 Qc2 Bh5 Nb4 Qe4 Rd3 Rb6 a5 c4 a4 Bc1 a3 Qb2 a2 Qc3 Ra5 Rf2 Qb1 Rd2 Be5 Ra6 Qb2 Re2 Rd2 Qb1 Qb3 Re3 Qa4 Rh3 Qc6 Ba3 Qb6 Rd3 Kc6 d7 Bd6 d8B Kd7 Qcc1 Qc6 Rb3 Rb5 Qc3 Qb6 Be7 Qa5 Ba7 Be5 b8R Bb7 Rc8 Bg2 Bb8 Nd5 Qb4 Qb6 Qc3 Bh3 Qa5 Nd6 Rf8 c6 Rf6 Ne8 Nc7 Bd6 Na8 Be5 Ba7 Bb8 Re6 Qd8 Bb6 Qc8 Bc7 Ba7 Be5 Qc7 Rd6+
8/r2q3B/b1n2bPQ/NppR1r1Q/1P3b1p/RK1R4/1nPQQk1B/q2n4 b - - 1 2 illegal: No possible last move, all moves rejected
1R6/1QP2QKP/p2B4/P2B1NR1/3n1r2/rpq3Qk/2nqBbp1/2Br2bb b - - 0 1 illegal: No possible last move, all moves rejected
N5q1/1kB1q3/2Rpn2b/pbr1N1N1/Pn5R/1R4KN/P2q2pP/Qr1Q2n1 b - - 0 1 illegal: No proof kernel
NB1b1n2/Kn2p1pp/Pr4bq/3q2RP/1b1R4/N1k2n2/P2NQ1Q1/3RN2r b - - 0 1 illegal: No proof kernel forced: wxDB
2Qr3q/2QRNpp1/rR1n2b1/nn3PPb/5N1p/3Qq2R/2K1P1r1/QB3k2 b - - 1 2 illegal: No proof kernel
rB6/QKn2q1B/pP3RB1/1b6/n2p1N1N/b1P2k2/1r1Pnp1q/1NN2Q1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 a4 exf4 Ra2 Qb6 Rb2 Qg6 axb5 Qf5 b6 Qg5 b5 Qd8 Rb4 cxb4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 g4 b7 g3 b6 f3 c3 f2 h6 b3 h5 b2 h7 g2 h6 Na6 b8Q d5+ Kd4 Kf5 e4+ Kg5 e5 Kf4 e6+ Qd6 e7 f5 e8B Ne7 Ne2+ Kf3 Bg6 g1N Rh5 f4 Rf5 Bb7 Rf6 Bc6 Bh3 f1Q Bhf5 Bb5 Qc7 Rg8 h8N Nc5 h7 a6 Qa7 Na4 Qe1 Qc7 Qd1 Qg2 Qe1 Qb7 Qf1+ Qf2+ Ke5 d4 Kd6 Qd5+ Kc7 Qf7 Kb7 Nd5+ Bd7 Be7 Bdf5 Nc7 Bh5+ Rg4 Na3 b1R Bb2 Ne8 Nc1 Kg3 Ng6 f3 h8N Rh4 Nf4 Ne2 Bh7 Rh1 Nhg6 Qh2 Nh4 f2 B5g6 Kg4 Nc2 Kg3 Ba3 Rb2 Bd6 Kg4 Bb8 Nc7 Na3 Bb4 Nhg2 Kf3 Nb1 Ba3 Nh4+
4QN2/1RpNK2b/2q2Q1Q/3Nn2Q/r1Pp3R/4P3/2bPpq1q/nrk1Br2 b - - 0 2 illegal: No proof kernel
B2n2R1/pNKp1B1n/6q1/P1B5/1p1n1k1b/Q2PN1br/1bq1NPQ1/1r1B4 b - - 1 2 legal: proof: e4 f5 g4 fxe4 b4 c5 bxc5 b6 Ne2 Ba6 Ng1 Bc4 a4 h5 Ra3 Bf7 Rg3 Bg6 Rg2 Bf5 gxf5 Nh6 Rg3 Ng8 Rg4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 b5 c4 e6 h4+ Kh5 a5 g5 f6 e3 d3 e2 f7 e1N c6 Bb4 f8Q Qc8 c7 Nc2 c5 Nd4 Kd6 e5 Nc3 e4 Ba3 e3 Nge2 g3 Nd5 Kg4 h5 g2 h6 g1Q h7 Nf6 Bh3+ Kf3 Qf1 Nbc6 Be6 g4 Bf7 g3 Qg2+ Kg4 Rh6 Rb8 Rg6+ Kf5 Rg8 Nd8 Qe7 Bc3 c6 Bb2 Bc5 Rb7 Nc1 e2 Ne3+ Kf4 Qf8 e1B Qe7 Qa8 c8B Bec3 c7 Qd1 Qf8 Qc2 Qe7 Rb8 Bb7 Bd2 Bf3 Qe4 c8B Qg6 Bcb7 Bb4 Qh1 g2 Ba8 g1B Qg2 Bh2 Bd1 Bg3 Kc7 B4c3 Bb6 Bh4 Qa3 Bg3 Na2 Bb4+ Nc3 Bf8 Bc5 Bh6 Ne4 Bg5 Nd6 B5h4 Nb7 b4 Rg7 Re8 h8N Nh7 Rg8 Re7 Nc4 Re1 Ne3 Rg1 Bf3 Rb1 Bd1 Qf5 Nd6 Rb6 Nb7 Rh6 Ng6+ Kg5+ Ne5+ Kf4 Nf3 Qg6 Ng1 Bf6 Nf3 Rh3 Ng1 Bfh4 Ne2+
QQ3K1B/5NB1/2qBRQpr/n1Pp4/n2q4/1BPk4/1bbPb2p/1n2N1r1 b - - 0 1 illegal: No proof kernel
5N2/2PPQbr1/nQnNnN2/2pK1R2/B4r2/1p1N2kp/rqPQ4/1qbR4 b - - 0 1 illegal: No proof kernel
RQr5/pqn2rR1/1bRNp1Q1/2R3N1/1P2B1Pp/7b/k1q1Pn2/rb1QK3 b - - 0 1 legal: proof: g4 d5 c4 b5 cxd5 g5 f3 b4 d3 b3 Bf4 f5 h4 gxh4 Bg3 f4 axb3 fxg3 b4 Bb7 b5 Bc8 b4 Kd7 b6 Kd6 f4 h5 b7 c5 f5 g2 d4 h3 f6 h2 f7 c4 Nd2 c3 Qc2 h4 Ra4 Qb6 Ndf3 Na6 b8Q+ Nc7 Qb1 c2 Nd2 Bf5 Ngf3 g1R Ra5 e6 Rc5 Rh7 Ng5 Nf6 Qd1 Be7 f8Q c1Q Qf7 Qb7 Qg6 Bd8 Rc6+ Kd7 d6 Bb1 d5 Rf7 Nc4 Qc2 Rc5 Ne4 Rc6 Nf2 Rc5 Rg3 Bg2 Ra3 Be4 Ra1 Rf1 h1B Rg1 Ke8 d7+ Ke7 Nd6 Bg2 Rc6 Bh3 Rf1 Nh1 Rf5 Nf2 Re5 Ne8 Rf5 Bb6 d8R Nc7 Rg8 Kd7 Rg7 Ke7 Rf3 Kd7 Rfc3 Ke7 Qh5 Kf6 Qg6+ Ke5 Qc1 Kd4 R3c5 Qc4 Qd1+ Kc3 Nc8 Kb2 d6 Qb3 d7 Qc2 d8R Ka2 Nd6 Nb5 Qc7 Rc8 Qb8 Nc7 Qa8 Rb8 Rd7 Rh8 Rd8 Qa6 Qb7 Re8 Ra8 Rc8 Qb8 Qb7 Qh5 Ka3 Qh7 Ka2 Qg6
2Nqqb2/1p5R/Q3p3/p1R5/2r2r1n/PP2P1r1/2QQknQ1/1NK1nRbB b - - 1 3 illegal: No possible last move, all moves rejected
nnR1r3/1QP3p1/1N6/R1N1prbq/R1rk3q/1BNp1P2/K3b1P1/2b3QN b - - 0 1 illegal: No proof kernel
3qkbn1/K2p1RR1/4Pr2/3QQ2b/PpN1B3/rn4pN/1q1P2Qq/n1N3Q1 b - - 0 1 legal: proof: f4 a5 b4 axb4 g4 c5 Bg2 h5 gxh5 e5 fxe5 c4 Bb2 c3 Bf1 cxb2 Kf2 g5 Ke3 b5 Kd4 f5 e4 f4 a4 f3 c4 b3 h4 b4 e6 f2 e5 g4 e7 g3 Kc5 Ra7 h6 Bb7 h5 Nf6 h7 Qc8+ Kb6 Rg8 h8Q Na6 h6 Qa8 c5 Rg5 c6 Rf5 c7 Rg5 c8Q+ Kf7 e8N Ng8 h7 Nc5 Nc3 b1Q Bg2 f1N Na2 b2 Nc1 Ne3 Nh3 Nc2 Be4 Rf5 Qg1 Rf6+ Qc6 Nb3 e6+ Ke7 Ra3 Nca1 Qd5 Bc6 Rh2 Rc7 Nd6 Qd8 Nc4 Ke8 Qg2 Bb7 Ka7 Qd3 Qg7 b1Q h8Q Qe2 Qgg5 Qf2+ Qe3 Qb2 Qg7 Qe2 Qeg1 Rc6 Qgg5 Rd6 Qde5 Rd3 Qd5 Qh5 Qge5 Qh4 Nf4 Qh8 Rh7 Rc3 Rg7 Qh2 Nh3 Ba6 Ne3 Be2 Nc4 Re3 Qb5 Bh5 Qbd5 Nc5 Rd3 Ref3 Rd4 Ra3 Rd3 Ncb3 Rf3 Rh6 Rff7 Rg6 Qgd4 Rf6 Qdg1
R1brQ2B/KQRR4/ppq5/RP3rr1/1Q2b3/PNP4k/3rnpB1/r1n5 b - - 0 2 legal: proof: f4 f5 d4 e5 fxe5 c5 g3 cxd4 Kf2 f4 Ke1 f3 Nd2 h5 Ne4 Be7 Nf2 Bg5 Ng4 Bf4 gxf4 hxg4 Kf2 Kf7 h4 Kg6 b4 Kh5 e4 d5 a3 g5 f5 d3 Ke3 d2 Kd4 a6 Kc5 f2 e6 d4 e7 d3 e8R Ne7 f6 Rf8 e5 Nf5 e6 Ng3 e7 Ne2 f7 g3 Bb2 Kg4 h5 g2 h6 Qd5+ Kb6 Nc6 h7 Ne5 Nf3 g1R Qb1 d1B h8R d2 Bg2 Nd3 R8h5 Ndc1 Bh8 Kg3 c3 g4 Rh7 Bc2 R1h5 d1R Nd2 Be4 Nb3 Rd2 Rg7 Rb8 Ka7 Qc6 Ra5 b6 b5 Rh1 Rd8 Kh2 e8Q g3 Qd3 Rg1 Qdd7 Rgd1 Qb7 Rg1 Bh3 g2 Rh7 Rh1 Ra2 g1R Bg2+ Kg3 Rb2 Rh5 Rd7 Rg8 f8Q Rf5 Qb4 Rgg5 Rc7 Rgd1 Rhd7 Rh1 Bf3 Kh3 Rb1 Na2 Rg1 Nac1 Rg4 Nd3 Rg2 Ra1 Rg1 Ndc1 Bh1 Rh5 Rg8 Rhg5 Bg2+ Kg3 Re7 Bd7 Qg6 Kh4 Re6 Re8 Rd6 Be6 Rd8 Kg4 Ra8 Bc8 Rgg7 Red8 Qe8 Kg3 Rgd7 Kh2 Bf3 Kh3 Bg2+
B2N4/b2KP1qN/Q2b3k/1R1bp3/NR1Q2Rp/Pr2p1n1/2bRbr1P/1n6 b - - 0 1 illegal: No proof kernel
1Q1rn1r1/2P1Rr2/2qNp2K/rpBk3p/2b1Pr2/1Rn4P/Q1RRN3/2Qb4 b - - 1 2 illegal: No possible last move, all moves rejected
3qb1N1/1kp5/Q3p1b1/n2RP3/n1P2KPQ/1rNp1nn1/2QN2R1/r1Q2nB1 b - - 1 2 legal: proof: f4 g5 a4 gxf4 d4 b5 axb5 h5 d5 h4 d6 h3 g3 e6 Na3 Be7 Bg2 hxg2 Nb1 Kf8 dxe7+ Kg7 Qd5 Kg6 Qd1 Kf6 Kf2 Ke5 Kf3 d5 e8N a5 c4 f5 b4 d4 h4 d3 e4 a4 b6 a3 b5 a2 g4 Bd7 h5 Ne7 h6 Nbc6 h7 Na5 Nf6 Kd6 b7 Be8 b6 Kc6 b8Q Ra7 Ne2 g1N+ Kf2 f3 Kg3 f2 e5 f1B b7 Rg8 h8Q Nf3 Qc2 Bg2 Rg1 Kb6 Nd2 f4+ Kf2 Kc6 Nc3 Nf5 Qh4 Ng3 Qa8 Kb6 b8Q+ Ka6 Rb1 a1N Rb5 N1b3 Rd5 Nc5 Qb4 Na4 Qc5 Bh1 Rg2 Bg6 Qb8 Rb7 Qa3 Rb3 Qbb4 Be8 Qe7 Kb7 Qed6 Rh8 Rh2 Ng1 Qh3 f3 Ke3 f2 Ng8 f1N+ Kf4 Be4 Nf3 Rh4 Rg2 B4g6 Be3 Nh2 Nd2 Ngf3 Qa1 Nhf1 Ba7 Ne3 Qad1 Rh8 Qh5 Rh7 Qg5 Rh2 Qh4 Rh1 Qa1 Re1 Qab2 Nef1 Bg1 Rb1 Qbc1 Ra1 Qa6+
3b3K/1b2Rr2/kb6/rRbp3p/4pNPP/qNR5/1PR1nBnQ/1QnN4 b - - 0 1 illegal: No proof kernel
q1b3Qr/4Rn1B/4prpQ/n1Qr2P1/2PN1b2/3NPb2/bBK1Bp1B/k7 b - - 0 2 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 g6 axb5 Bb7 f5 Bc8 Ra6 Nc6 fxg6 Nb8 g7 Qa5 Rd6 Qd8 Rg6 hxg6 Kd2 a5 g4 d5 h4 Kd7 c4 Kd6 b6 Ke5 g5 f5 b7 f4 b5 e6 h5 f3 h6 f2 b6 d3 h7 Kd4 Nh3 a4 Na3 Nh6 g8B Bd6 Bf7 Nc6 b8B Na5 Bg8 Nf7 Qe1 Bf4+ Kd1 d2 e3+ Kc3 b7 d4 Nc2 a3 Rh2 a2 Be2 a1R Bc7 Kb3 b8Q+ Ka2 Qh1 Rb1 Qb6 Rb5 Bb2 Rd5 Qc5 Ra7 Be5 Rad7 Bb8 Rf5 Bc7 Rf6 Qa8 Rd5 Qb8 Bg3 Nf4 Kb1 Nd3 Bf4 Nce1 Qe8 Nf3 Ka2 Kc2 d1B+ Kd2 Ba4 Rh1 Qc6 Bd6 Qa8 Be5 Bad7 Kc2 Bb7 Qbf8 Bdc8 Qh6 Bc6 Rb1 B6b7 Ba3 Bc6 Rb7 Ka1 Re7 Ba4+ Kc1 Bb3 Bc7 Ba2 Kc2 Bg3 Be5 Bh4 Bh2 Bg3 Kd1 Bf4 Bb2+ Kb1 Nde5 d3 Nd4 d2 Nd3 Rd6 Ne1 Rd7 Nd3 Rd5 Ba3 Ka1 Kc2 Ne5 Bf7 Rf8 Bg8 Nf7 h8Q Re8 Bh7 Rg8 Bg4 Rgd8 Q8g7 Rh8 Qg8 d1B+ Kd2 Bf3 Kc2 Bh1 Be2 Bf3 Bb2#
3b4/1Bp2K2/N1Pp4/1n1prR1B/2P4P/bNrr1bN1/B3rB1Q/Q1q1k2n b - - 0 1 illegal: No proof kernel
4bRR1/1PN2R2/1R1b4/P1n3k1/Q1p1n2q/1bPp1p2/3n1r1r/K2nQNNB b - - 0 1 illegal: No proof kernel
7n/1b1q4/1n2nb2/1rNPn1B1/rp1QB1pK/1PNQ4/1pBP1R2/2k1bNN1 b - - 0 1 legal: proof: f4 d5 g4 e5 fxe5 h5 c4 hxg4 cxd5 a5 b3 a4 Nc3 a3 Rb1 Ne7 Bb2 b5 Ne4 b4 Bd4 g5 Rb2 axb2 Kf2 Kd7 Kg3 f5 h4 c5 a4 c4 a5 c3 e3 c2 h5 c1N h6 Nbc6 h7 Bb7 a6 Ng6 a7 Be7 Nc3 Nd3 e6+ Kd6 e4 Nc5 Bf6 Qd7 Qf3 Rhb8 h8Q Nce5 Qd3 Bd8 e7 Ne6 e8B Kc5 Qh4 Nh8 Bg6 Be7 Rh2 f4+ Kf2 f3 Kg3 f2 Bg2 Nf3 e5 f1N+ Kf2 Ne3 Kg3 Nc4 Bh1 Ne1 Bhe4 Nf3 Rf2 Nb6 Bh7 Nc7 e6 Ne5 Bhg6 Bd8 e7 Ne6 e8N Be7 Qf1 Kd4 Nc7 Bd8 Na6 Be7 Kh2 g3+ Kh3 g2 Nc5 Bd8 Qf4 g4+ Kh4 Be7 Bg5 Bd8 Nh3 g1B Qf6 Bh2 Ng1 Be7 Qg7 Bf6 Bc2 Bf4 Bge4 Be3 Nd1 Bf4 Ne3 Bh2 Qh3 Bf4 Nf1 Be3 Rf3 Bf2+ Qg3 Be1 Rf4 Rc8 Rf2 Rab8 a8N Rc7 Na4 Nhf7 Bd1 Nh8 Bef3 Kd3 Bde2+ Kc2 Bd1+ Kb1 Nc5 Qf7 Bc2+ Kc1 Bfe4 Rcc8 Qd3 Qd7 Nc7 Ra8 Nb5 Ra4 Nc3 Rca8 Qd4 R8a5 Qg6 Rb5 Qf5 Na8 Qf3 Nb6 Qfd3
2r1nr1b/pB2q2p/P4P1B/Kb3N2/N2p4/b1Pk4/Q1BnN2R/1QB1nn2 b - - 0 1 illegal: No possible last move, all moves rejected
1n2bq2/Kn1kB2p/PR4pb/1Qr2r1P/RpN1Q3/3N1P2/3N2bR/2b1R2r b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 g4 axb4 gxf5 Ra4 Nh3 Ra5 Ng1 Ra8 d4 e6 d6 Ra3 d7+ Ke7 d5 Ra7 d6+ Kf7 Bg2 Ra8 Bd5 exd5 Kd2 c5 Ke3 b5 h4 c4 Kd4 b3 Kc5 d4 e4 g6 a4 d3 h5 b2 a5 b4 a6 d2 f3 c3 e5 c2 e6+ Kf6 e7 Ke5 e8R+ Ne7 f6 Ke6 f7 Nc6 Qe1+ Ne5 Rh2 d1R Ra4 Bh6 f8R Rg8 Bg5 c1B Ne2 Nc6 Nd2 b1B Bh4 Bf5 Rf6+ Ke5 Kb5 Nb8 Nf4+ Be4 Bg5 Rf8 Nd3+ Kd5 Re6 Nec6 Be7 Na5 Qh4 Nb7 Qf4 Qc7 d8Q Rf5 d7 Rh1 Rb6 Qd6 Qc7 Ke6+ Qc5 Ra7 d8N+ Kd7 Nc6 Ra8 Na5 Bc6+ Kc4 Qf6 Qe4 Qf8 Qce5 Bd5+ Kb5 Bf7 Bd6 Ra7 Re6 Be8 Be7 Nc5 Nac4 Rc7 Rbc6 Nb7 Kb6 Rf1 Ka7 Rh1 Rb6 Rc6 Qa5 Rcc5 Qg4 Kc7 Re1 Be6 Nd6 Kd7 Qe4 Bc4 Nb2 Be2 Nd3 Bf1 N6c4 Bg2 Qb5+
2R1N3/2Q1pN1b/n2nP2N/1b2qpbp/2Q3R1/bP3Pr1/2N2BrQ/nk3K2 b - - 0 2 legal: proof: h4 b5 c4 g5 a4 gxh4 axb5 a5 e3 d5 cxd5 a4 Nc3 a3 Nb1 a2 Na3 Ra7 Bd3 Ra8 Bb1 axb1B d4 Kd7 g4 Kd6 b6 h5 b7 c5 f3 f6 g5 h3 b3 h2 e4 c4 g6 c3 g7 c2 Be3 c1B Nc2 Ra2 Nh3 Ba3 Nf4 Bd7 Rg1 h1N Kf1 Nf2 Qe2 Na6 b8Q+ Qc7 Ne6 Bb5 Rg4 Nd1 Bf2 Nh6 g8N Nf7 Qc4 Bh6 Ng7 Bg5 Nh6 Rg8 e5+ Kd7 e6+ Kd6 Ne3 Bh7 Nc2 f5 Rc1 Rb2 Qc8 Qa5 Qe2 Qc3 Qcc4 Qe3 Qd2 Qe5 Qf4 Nc3 Qg3 Na2 Qh2 N2b4 Qe2 Kc7 d6+ Kb6 d7 Ka5 d8N Nd6 d5 Ra2 Ndf7 Rb2 Ne3 Nc2 Ne8 Na1 Rc8 Rd2 Nc2 Rg6 Ba7 Rg8 Qd3 Rg2 Bf2 Rg3 Nd4 Kb4 Qe2 Bb2 Qc4+ Ka3 Nc2+ Ka2 Rc5 Nb7 d6 Ba3 d7 Kb1 d8Q Nd6 Qc7 Rg2 Re4 Bh4 Rc6 R8g3 Rg4 Bg5 Qb7 Qe4 Rc8 Qe5 Qc7
n7/1Q1n1pPp/1p1n4/B3N3/1P1Qr1B1/QQb4k/1PRrr1Rq/BK1bn3 b - - 0 1 illegal: Other
b1R1Q2b/3P2R1/N1p3b1/p1Bbpr2/1nPN4/Pk2N1K1/1n1n3r/q2QQ1N1 b - - 1 2 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 Na6 b5 Nb8 b6 Bh6 Bb5 Bf8 Bc6 dxc6 bxc7 Bd7 Ba3 Be6 Bc1 Bc8 d4 Kf7 g4 a5 f4 e5 Kf2 b5 f6 Ke6 f5+ Kd5 f7 Kc4 f6 h5 d5 h3 g5 b4 d6 h2 g6 b3 g7 h4 Ba3 b2 Bc5 h3 Kg3 Bb7 c8N Na6 Ne7 Nb4 Nf5 Rb8 c3 Ba8 d7 Qb6 Qe1 Be7 Qd1 Rf8 Qe1 Nh6 g8Q Ng4 Qg5 Qb8 Qgd2 Nf2 Qdd1 Nfd3 Na3+ Kd5 Nf3 b1N Ng1 Nd2 Nc2 Kc4 a3 Nb2 Nfe3+ Kb3 c4 Qd6 Rc1 Qd4 Rb1 Rh5 Ra1 Rfh8 f8N Rf5 f7 Bf6 Ne6 Rh4 f8Q Bh8 Nc7 Rh7 Nf3 Rhh5 Rg1 h1B Na6 h2 Rb1 Bg2 Qd8 h1B Qe8 Bf1 Rg2 Rh2 Ng1 Bd3 Rf2 Rf8 Rf7 Bg6 Rg7 Rf5 Qe6 Qd5 Nh3 Nd3 Qf2 Kc3 Qe8 Na4 Rb8 Qd4 Qfg1 Nb4 Qgf1 Bd5 Qfe1 Kb3 Rc8 Qa1 Ng1 Nb2 Nd4+
N1r4k/3b1nrb/NN2Pp2/K1b1bQNP/1Bpq4/1Q1pRP2/2R2r2/1Rn5 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 Be4 Kd6 Bg2 Kc5 d6 Kb6 Bd5 exd5 Bh6 Kb5 Bc1 Kc6 Kd2 b5 a4 g5 e4 g4 h4 g3 f3 f6 h6 g2 a5 d4 e5 Kd5 h5 Ke6 a6 Kf7 a7 c5 h7 Kg7 e6 c4 Ra6 b3 Ba3 b2 Rh2 b4 Qb3 Nc6 Nh3 g1B Ng5 Ne5 Nc3 b1R Rb6 Nh6 Na4 Rg8 h8R Rb8 a8N Nd3 Re2 Ra1 Re3 Nc1 Rb5 Bh2 N4b6 Be5 Rd5 Qc7 d8N Qd7 Nb7 Nf7 Nc5 Rb7 Na6 Ra2+ Qb2 b3 Bb4 Qd8 d7 Bc5 Qc2 b2 Qf5 Rf8 Rh7+ Kg8 Rg7+ Kh8 Rd6 Qc7 d8Q Bd7 Qb8 Rc8 Rc6 Qd6 Rc7 Ra7 Rb7 Ra5 Kc2 b1B+ Kb2 Rb5 Ka3 Be4 Ka4 d3 Bc3 Rb2+ Ka5 Qd4 Bb4 Re8 Nh7 Rf8 Rg2 Rf2 Ng5 Rc8 Rh2 Rf1 Rc2 Rf2 Qg4 Bh7 Qf5 Kg8 Qc7 Kg7 Qc6 Kh8 Qa4 Rg8 Rb8 Rc7 Qb3 Rcc8 Rb7 Rg7 Qb1 Bg6 Na4 Qh4 Bc3 Rc7 Rb4 Qg4 N4b6 Bh7 Rbb2 Rc8 Bb4 Qf4 Qa2 Qh4 Rb1 Qd4 Qb3
7b/2NKp1P1/Q1nB1q1Q/1bP2p1r/pn6/1BBk1nb1/4RP2/R1RBr1n1 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 d5 a4 g5 hxg5 dxe4 Nc3 Bh3 Na2 Bg4 axb5 Bf5 b6 Bh3 b5 Bc8 Nb4 cxb4 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 Kd4 c4 a5 g6 f5 c5 h5 b7 a4 g5 e3 b6 h4 g7 h3 g6 h2 Qe2 b3 Nh3 b2 Ng5 b1N Qa6 Rh5 Be2 Nc6 b8B Bd7 b7 Qb6 Bd1 e2 Bd6 e1B b8Q Nf6 g8B Bh6 Qf8 Rb8 Bgb3 Rd8 d3 Bc3 Bb2 Nd2 Re1 h1N Re2 Ng3 Qh8 Bf8 Qh6 Bg7 Rc1 Bh8 g7 Nf3 Ra1 Be6 Rc1 Bc4 Ne6+ Kd5 Nc7+ Kd4 Ba3 Bb5 Bb4 Ng4 Ba5 Nb4 Ra1 Bb2 Rc1 Rb8 Ra1 Kc3 d4 Kd3 d5 Nge5 Rc1 Nec6 Ra1 Na2 Bc3 Nab4 Rc1 Nf1 Ra1 Ng1 Rc1 Nd2 Ra1 Na5 Ke5 Nac6+ Ke6 Ndf3 Kd7 Rb7 Re1 Bc1 Re2 Bf4 Bde5 Rh1 d6 Rh5 Ke6 Nd5 d7 Bg3 d8R Bc4 Ba2 Na5+ Rd6 Rb8 Rc6 Ng5+ Kd7 N5f3 Rc2 Rb7 Re6 Rb8 Bf4 Rb7 Ree2 Qf6 Bfe5 Nc6 Bd6 Rb1 Bb3 Ndb4 Qg5 Rb2 Qh6 Ra2 Re4 Bb5 Rcc1 Re2 Re6 Re1 Re2
2Qk3K/1P1r4/B2b2rP/3pnN2/nQrB1R2/p4pb1/2QPRb2/QB2qb2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 b4 e5 fxe5 c6 Na3 Rh4 axb5 Rh5 b6 Rh8 Nb5 Na6 Nd4 Nb8 b5 c5 Nc6 Qg5 Nb4 cxb4 Ba3 Qe7 Bc1 Qd8 Kf2 g5 Ke3 f5 Kd4 a5 h4 d5 c4 b3 e4 g3 c5 a4 h5 b2 b7 b1R c6 g2 h6 g4 b6 a3 e6 g3 Ke5 f4 e7 f3 c7 Be6 c8Q Na6 b8Q Nb4 Rh4 Na2 Bb2 Nf6 Ne2 g1B Bd4 g2 Rf4 Rb4 Ng3 Ra6 Qdc2 Bf2 Re1 g1B Nf5 Rh7 Re2 Nc3 b7 Rc4 Qd6 Bd7 Qb4 Bc6 Ke6 Na4 e5 Ng4 Bc3 Nh2 Kf6 Bg3 Bd4 B1f2 Kg6 Rh8 Kf6 Ng4+ Kg6 Rg8+ Kh7 Rg7+ Kh8 Rf7 Qa2 Rb6 Qa1 Bb5 Qc7 Qa8 Qcc5 Kd7 e8B+ Kd8 e6 Rd7 Bg6 Bd6 Bh7 Rc6 Bg6 Ne5 e7+ Kc7+ e8Q Qc8 Qg8 Qe8 Ne7 Kd8 Bb1 Bc7 Nf5 Rg6 Qb3 Bd6 Qcb4 Kc7 Qc2 Qe7 Qe6 Kd8 Ree4 Qh4 Bd3 Qh1 Re2 Qe1 Be4 Rc6 Re3 Bf1 Bd3 Rdc7 Ba6 Rc4 Ree4 Bf8 Qc6 Bd6 Re2 Rd7 Qc8+
3B3Q/1KP1p1pn/1P1brBb1/4Rbn1/kp5R/1B2N1P1/1RnbB1Q1/4q1r1 b - - 0 1 illegal: No proof kernel forced: wxDB
K3QN2/1pp1Rb2/1Nr3N1/3bbbBR/1n1kqPQ1/1P3P1n/Q2Nrp2/3r4 b - - 0 1 illegal: No proof kernel
1RN1n1n1/B1rp1rr1/3r1b1P/1B2pqQ1/Q1N1Pb2/1K2b1k1/1Q1P1p2/2Q3B1 b - - 1 2 legal: proof: b4 g5 f4 b5 a4 h6 axb5 Bg7 g4 Be5 c4 Bd4 b6 Bb2 c5 Bg7 b5 Bf8 c6 Bb7 cxb7 gxf4 g5 h5 Ra3 Bg7 Rg3 Bf8 Rg4 hxg4 e4 f5 h4 Kf7 h5 Ke6 h6 Ke5 g6 a5 g7 c5 Qb3 c4 Kd1 c3 Kc2 g3 Nh3 f3 Rg1 f4 Rg2 f2 Qa4 f3 Qc4 a4 Bb2 a3 Qa4 a2 Na3 a1B Nf4 Na6 b8Q+ Nc7 b7 Rh7 b6 Ra6 Bb5 f1R Qc8 Ne8 b8B+ Qc7 b7 Rd6 Rf2 g2 Nd5 g1B Nb6 Kf4 Nac4 Qc5 Ba7 Qf5 b8Q Kg3 Kb3 c2 Bd4 c1R Qc6 Bh2 Nc8 e5 Qc5 Be7 Qca3 Rc2 Qc1 Bf6 Bdb6 Bd4 Bc5 Ne7 g8Q+ Rg7 Qf7 Be3 Qh5 Ng8 Bd4 Rg1 Rf1 Rf7 Rd1 Kf4 Qb6 Rgg7 Re1 Kg3 Qb7 Bf4 Bg1 f2 Qb6 Be3 Qd4 Kg2 Qda1 Bhf4 Qab2 Bc5 Re3 Bd4 Rd3 Bde3 Rd5 Kg3 Rc5 Be7 Rc7 Bf6 Rb7 Qe6 Rb8 Qf5 Na5 Rc5 Nc4 Rc7 Qg5+
2qn1K2/1p2r1RB/1k2rpBq/1P3P1q/Q1b1RR2/2R5/NP1B2bp/Q4q1n b - - 1 2 legal: proof: h4 d5 c4 e5 d4 g5 a3 Bb4+ axb4 gxh4 Nd2 Qf6 Nb3 Qg5 cxd5 Ne7 d6 Ng8 d5 Qd8 Nd4 exd4 Kd2 Kd7 Kd3 a5 Ke4 c5 Kf5 h5 f4 c4 g4 c3 e4 d3 b5 a4 e5 d2 g5 a3 g6 h3 g7 a2 Bd3 h4 Ne2 f6 Kg6 h2 Kf7 h3 Bh7 c2 f5 Ra6 Re1 h1B Nc3 h2 Re4 Nc6 Qg1 d1Q Bd2 Bg2 Rc1 a1Q Na2 Qc7 Kf8 Nh6+ g8R Ng4 e6+ Kd8 d7 Nf2 Qf1 Qh5 Qe1 Qf4 e7+ Kc7 e8B Kb6 d8R Be6 d6 Nh1 d7 Bc4 Beg6 Qb8 Rde8 Qc8 Rf4 Nd8 Ree4 Qb1 Ke7 Qa1 Rg7 Rf8 Qf1 Rf7+ Ke8 Re7+ Kf8 Kc7 Qg1 Rae6 Qa7 Qb1 Qa4 Kb6 Rg1 Bgf1 Rg3 Bg2 Rc3 Qf1 Kg8 c1Q Kf8 Nc6+ d8Q+ Qc7 Qd5 Nd8 Qd3 Qc6 Qb1 Qc8 Be1 Qe3 Bd2 Qeh3 Qc1 Qh6 Qe1 Q3h5 Qa1
NKbB3R/3qP3/bp1p2N1/1b2p1kQ/nP1r3N/3P4/qr1R4/Rn2NQ1b b - - 1 2 illegal: No proof kernel
3nRnbK/PQqp4/q3p3/N2rnr1B/R4b2/1kPQ4/pBnP4/QR1R4 b - - 0 1 illegal: No possible last move
5qnR/Q1B1R1Q1/K2nrbq1/2p1QqnN/4rpr1/2P3p1/R4PPR/3B1k2 b - - 2 3 legal: proof: e4 a5 b4 g5 a4 d5 b5 dxe4 h3 g4 Nc3 g3 Nd5 Bg4 hxg4 b6 Nb4 axb4 a5 Bg7 axb6 Bf8 Ke2 Kd7 d4 Kd6 b7 Kd5 g5 Kc4 g6 f5 b6 e5 g7 h5 c3 c5 d5 b3 d6 b2 d7 b1Q Bf4 h4 Qd2 h3 Nf3 e3 Ra5 e4 Ra2 h2 Qc2 Rh4 Ng5 Be7 Nf3 Qf8 d8Q Ra6 Ne1 Nd7 b8R Rg4 b7 Ne5 Qa5 Re6 Re8 Bf6 b8Q Nf7 Nd3 Nd6 Qaa7 Qb6 Re7 Qb1 Rg1 h1Q Qc1 Qh8 Rh1 Qh7 Rh2 Qg6 Be5 Qc2+ Qd2 Qb1 Nf4 Qc2 Nh5 f4 Qe8 Qb1 Qb2 Qf5 Qbb7 Qb6 Ke1+ e2 Kd2 Qc6 Kc2 e3+ Kb2 Kd3 Kb3 Qb6+ Ka4 Qc6+ Ka5 Qce4 Qbc6 Qg6 Qcc7 Qef5 Ra4 Kd2 Ka6 e1N Be2 Nf3 Bd1 Ke1 Ra2 e2 Qeb8 Kf1 Qe8 Nh6 g8R e1R Rh8 Ng8 Qf7 Ng5 Qg7 Nc4+ Bd6 R1e2 Qcb8 R6e4 Bc7 Nd6 Qba8 Re6 Qd5 R2e4 Qe5
3k2Qq/2p1R1b1/3BBpp1/2n1B1Qn/2P1B3/1N2nP2/bK1N2Pr/1b1N2nn b - - 0 3 legal: proof: d4 e5 Kd2 b5 b4 d5 c4 g6 h4 f6 e4 dxe4 a4 e3+ Kc3 e2 f3 e4 h5 e3 h6 Qd6 d5 Na6 Kd3 Bb7 Kc2 Rd8 Ra2 Rd7 Ra3 Rg7 hxg7 Nc5 Rc3 a5 axb5 a4 b6 Na6 Rb3 a3 Rb2 axb2 b5 Qf4 Nc3 Qg3 Nb1 Qd6 Nd2 b1B+ Kb2 e1N Nh3 h5 Bd3 h4 Be4 e2 Nf2 Qd8 d6 Ne7 g8B h3 Be6 Nc2 Re1 Nd4 Qa4 h2 Qa5 h1N Nd1 Bd5 b7 Bg7 b8Q Ba2 b6 Nef5 b7 Rh2 d7+ Ke7 Qc8 Nfg3 b8N Nc5 Na6 Qh8 d8B+ Ke8 Qb8 Nh5 Qa8 Bb7 Be7+ Bc8 Bd6 Kd8 Qd5 Bd7 Qg5 Ba4 Qb5 Bc2 Qb7 Bcb1 Qbd5 Qe8 Bh3 Qf8 Qg8 Qe8 Be6 Qf8 Rf1 e1N Be5 Nec2 Re1 Ne3 Re2 Nb7 Nc5 Qe8 Ncb3 Nc5 Ka1 Qf8 Ba3 Qe8 Re1 Ne2 Kb2 Ng1 Re2 Na6 Bf8 Nc5 Bfd6 Bh6 Qh7 Ng7 Ba8 Ng4 Bed5 Qe6 Bd4 Qe8 Re7 Nh5 B4e5 Ne3 Be6 Bg7 Be4 Qh8 Qg8+
2Q1RR2/pQ2n2n/Q1b2bNP/P3p2p/3NP3/2R2Q1K/kq1rq1Bb/b3b3 b - - 0 1 illegal: No proof kernel
n4q1Q/1qnp4/npPQ1nN1/3PpK1b/1PR2B2/4Q2n/1Q2r1k1/3R1rNN b - - 0 1 illegal: No extended proof kernel
3q4/BRn1Pq1q/1B6/2K2N1p/3pQ2P/kB1PBr1Q/1p1b4/R1nnnbQ1 b - - 0 1 legal: proof: g4 e5 a4 b5 b4 f5 Nc3 a5 Na2 c6 axb5 c5 b6 e4 b5 Ra7 Nb4 cxb4 f3 Rc7 Ra4 Rc5 Ra3 f4 Ra1 Rf5 gxf5 exf3 Kf2 Ke7 h4 Kd6 e4 Kc5 c4 g5 f6 d5 f7 h5 e5 a4 e6 b3 b7 Kb4 b6 a3 c5 b2 d3 a2 e7 d4 c6 g4 c7 g3+ Ke1 f2+ Ke2 g2 Kf3 Nf6 Bd2+ Ka3 Be2 Bh6 f8Q Ne4 Be3 Nc3 Qf5 Rf8 Qe4 Na6 b8B Bh3 c8Q Nc7 b7 f1N Rh2 Ng3 Ba7 Rf6 Qc1 Nd1 b8B Rf5 Bb6 Rf7 Rb1 a1N B8a7 Nc2 Qcf5 Nf2 Bd1 Ne2 Qd2 Bg5 Qe1 Nc1 Ne2 g1Q Ng3 Bf1 Qh3 Bh6 Nf5 Qg7 Rg2 Qh7 Rg6 Bg5 Rd6 Rf6 Rd7 Rf8 Be2 Nd1 Qf2 Bh6 Qg1 Rf7 Qb7 Bg5 Ke4 f3 Qa8 f2 Ra1+ Na2 Ke5 Ne1 Kd6 Rf6+ Kc5 Bf4 Rb1 Nc1 Qe4 Bh6 Ng3 Rf3 Nf5 Nc3 Bd1 Bg5 Bb3 Nd1 Bf4 Bh6 Bg3 Bd2 Bf4 Bg2 Bg5 f1Q Be3 Qf2 Ba2 Bf1 Ra1 Ne8 Rb7 Nc7 Nh6 Qh2 Nf5 Qf4 Ng7 Qf6 Nf5 Qff7 Bb3+
1Nq1nK1N/B3p3/2R1b1p1/bq1R2qP/Q4nbN/3p4/1QrP2P1/q4kQQ b - - 0 1 illegal: No possible last move, all moves rejected
1n6/1P2Qp2/1BNN1Q2/r1p1b1B1/kbBpr3/B7/RbPP2K1/qNbb2b1 b - - 0 1 legal: proof: h4 e5 f4 b5 fxe5 Qf6 a4 bxa4 g4 Ke7 b4 Qg5 h5 Kd8 Ra3 Nh6 Rg3 Ke8 Rg2 Qd8 g5 Nc6 gxh6 Ne7 Rg3 Ng8 Rg6 hxg6 Kf2 d5 e4 Kd7 h7 Kc6 h6 a5 e6 d4 e7 a3 e8N g5 e5 a4 e6 g4 e7 g5 Bb2 g3+ Kg2 a2 Qe2 a1B Nf3 a3 Nd6 a2 Qe3 g4 Nb5 Ra5 Qg5 Nf6 e8Q+ Nd7 Ba3 Bb2 Qee7 a1B Qh4 Nb8 N5c3 Bc1 Bc4 Bab2 Nb5 Rg8 h8B Qd7 Kg1 g2 h7 Rg6 Kh2 g1B+ Kg2 g3 Bf6 Rg4 h8B Bh2 Nd6 Re4 Bg5 Kb6 Be5 Qa4 b5 Bg4 Bef4 c6 Ne5 Bd1 Bb4 Qa1 Ba3 Ra4 Qf6 Ka5 b6 Be7 b7 Bf8 Ne8 Bb4 Nd6 c5 Rf1 Kb6 Nc6 Ra5 Kh3 g2 Bg3 g1B Kg2 Re3 Qe4 Re1 Qee7 Re4 B3h4 Be5 Rf3 Bgh2 Rb3 Bc3 Rb2 Bg1 Ra2 B3b2 Na7 Rb5 Bg3 Ka5 Nc6+ Ka4 Qg6 Bg7 Qgf6 Bh8 Nc8 Ra5 Bc7 Bg7 Nd6 Bh8 Bb6 Bg7 Qg6 Be5 Qgf6
1kbb1rn1/2BP4/1p2n3/3Q2QK/N3B1Qp/1R2pbNP/1B1QP2n/3n1rb1 b - - 0 1 illegal: No possible last move, all moves rejected
3K1k2/Q2n2p1/nQ1rQ1PP/1pr1q1Pp/B5Q1/1R3Rbb/N1N3bp/3N1r2 b - - 0 1 illegal: No proof kernel
1Q6/qQ1b4/Q2P2p1/br1B1prp/1R2BP2/pK2kNn1/2PNr3/Bb4nQ b - - 0 1 illegal: No proof kernel
n2r4/2R3pK/1N1k3n/PpQp1P1b/1R1Pq2b/1pb5/2N1rNQ1/1rN1QB2 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 axb4 Bb5 c4 Bb2 c3 Bf1 cxb2 Ke2 d5 Kf3 Kd7 Kf4 b5 Kg5 e5+ Kg6 b3 f4 e4 h4 e3 c4 e2 a4 e1B d4 Qc7 h6 Qd8 a5 Bd2 h5 Bd6 f6 Qf8 h7 Nh6 f5 Rg8 h8N Bc3 c5 Be1 f7 Ng4 h6 Nf6 c6+ Ke7 h7 Bd7 c7 Bf4 c8N+ Kd8 Na3 Kc7 Nc2 b1R Ra4 Ra1 Nb6 Bg5 Rb4 Qe7 f8Q Ra7 Ne2 Bc3 Qe1 Kd6 Nc1 Ng4 Qc8 Na6 Qc4 Qe4 Rh6 Nc7 Nf7+ Ke7 h8Q Bh4 Nd6 Na8 Kh7 Rb1 Rf6 Nh6 Rf8 Ra6 Rc8 Rd8 Rc6 Be6 Rc8 Bf7 Rc7+ Kf6 Qe8 Bh5 Qec6 Ra7 Qce2 Rb7 Qcc4 Rbb8 Q2f2 Re8 Qg2 Rbd8 Nb7 Re6 Nc5 Re7 N5d3 Re6 Rc8 Ke7 Nf2 Kd6 Rc7 Qd3 Na1 Re2 Nc2 Qe4 Qc5#
2Bn1BQ1/Nr1pb1BR/bQ5K/P1R2bB1/n1p5/pqPP1r2/6np/Q3k3 b - - 1 2 legal: proof: e4 a5 b4 f5 exf5 g5 a4 b5 h4 gxh4 Nc3 Nf6 bxa5 Kf7 a6 Ke8 a5 Ng8 Na4 bxa4 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Kg4 c5 Kh5 e4 f4 a3 g4 e3 a7 h3 d3 e2 c3 e1N Bd2 c4 Ne2 h2 Rb1 Qb6 Rb5 Nh6 Rc5 Nf7 Qa1 Be7 Bg2 Rf8 Bb7 Na6 Nd4 Rb8 a8Q Ng2 Qa7 Qb3 Nc6 Nd8 Qb6 Rf7 Kh6 Rf8 Re5 Nc5 Bc1 Na4 Rc5 Rf7 Ba6 Rb7 Bd2 Rf8 g5+ Kf7 f6 Ke6 g6 Rf7 Kg5 h5 g7 h4 g8Q h3 f5+ Kd6 Kh6 Rf8 Rd1 h1B f7 h2 f6 Ke6 Rg1 Kd6 Bg5 Ke6 Ne5+ Kf5 Nc6+ Kg4 Na7 Kf3 Rf1+ Ke2 Rf3 Ne3 Rh3 Be4 Rh5 Bf5 Rh4 Re8 f8B Ng2 Bg7 Rf8 f7 Rb8 Bb5 Ba6 Bc6 Kf2 Bb7 Ke2 Bc8 Rb7 Be5 Re8 f8B Kf2 Bfg7 Rf8 Rh5 Rf7 Bf8 Ke2 Beg7 Kf2 Bc1 Ke1 Bg5+ Ke2 Qg6 Bh3 Qb6 Rf3 Kg6 Bg4 Rh8 Bf5+ Kh6 Kf2 Rh7 Ke2 Bc1 Ke1 Bg5+
1NRKQn1r/5b1r/6p1/2rQ2R1/2QR2p1/1p3pb1/1qPP1nPB/bBRk4 b - - 0 1 illegal: No possible last move
B1qB4/Q1n1B2N/r3Pp2/pQ1b2N1/Kb1B1PPp/1nk1p3/1br2Rn1/6N1 b - - 0 1 illegal: No proof kernel
1k6/Qn1P2Nn/3pK3/2rr2Nq/1B1PppBp/brQ2n1P/4B3/1BQ1Rb2 b - - 1 2 legal: proof: e4 b5 b4 g5 a4 d6 axb5 Kd7 f4 gxf4 e5 Ke6 Ra6 Bg7 exd6 Bf8 d7+ Kd5 Rd6+ cxd6 Ne2 Ke5 Ng1 Ke6 Ke2 f5 Kd3 h5 Kd4 a5 g4 a4 c4 a3 b6 f3 b5 a2 b7 a1R b6 f2 g5 h4 h3 f4 c5 Na6 b8Q Nh6 g6 Bb7 c6 Nc7 g7 R8a5 g8B+ Nf7 Nc3 Nd5 c7 R1a3 c8B Ba6 b7 Rh5 Nf3 Nf6 Qc7 Nh7 b8Q Rac5 Ne4 Bg7+ Nf6 Qe8 Be2 f1N Qba7 Rb3 Bb7 Nh2 Re1 Rhd5+ Ke4 Bb5 Nh5 Bb2 d4 Ba3 Ng7+ Kf6 Qd2 e5 Qc3 Ke7 Kf5 Nd8 Be6 Qh5+ Ng5 Nf3 Bd2 Ba6 Ba8 Nb7 Qc1 Bb5 Bb4 Ba6 Qc6 Kd8 Qc3 Rb5 Q6c4 Rbc5 Qc1 Kc7 Q4c3 Nf8 Kf6 Nh7+ Ke7 Bb5 Bg4 Ba6 Ke6 Bc4 Bd3 Bb5 Bb1 Bf1 Qa6 Kb8 Qa4 Na5 Bc6 e4 Bb5 Nb7 Be2 Rc8 Qa6 Rcc5 Qa7+
n1b3rR/R3Qkb1/B1BP1n1Q/p3B2q/4Qn1p/P2P3p/1pKQ4/4brN1 b - - 0 1 illegal: No possible last move, all moves rejected
2Rqk1r1/1K1RppPB/1n1N2R1/1pPBb3/b1Q1Pb2/6r1/1r1pBB2/3Qn3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 dxc5 g6 f5 Ra3 Nc3 Ra4 Nd5 Ra6 Ne3 Ra4 fxg6 Ra3 g5 Ra8 Ng4 hxg4 Kd2 b5 Kd3 d5 Kd4 g3 c4 g2 a4 b3 h4 b2 e4 b1R h5 Bf5 a5 Nh6 a6 Qb6 a7 Bc8 g7 Bd7 g8B Qc6 g6 Rh7 Be2 Qb7 c6 Qc8 Kc5 d4 Kb6 d3 c5 Ng4 c7 Nh2 h6 Nf3 Be3 d2 Bf2 Ng5 Nf3 g1B Nd4 Be6 Nf5 Qd8 Kb7 Bg7 c8R Bh2 Rg1 Bge5 g7 Rh8 Bh7 Nf3 Rg6 Rb2 Ra4 Rg8 Rd4 Ne1 Rd7 Bb3 Qc1 Na6 Qc4 Nc7 Kc6 Rb8 a8B Ba4 Bb7 Bef4 Kb6 Ra8 Bd5 Ra5 Kc6 Na8 Kb7 Rf8 Bg8 Be5 h7 Bhf4 h8Q Nb6 Qh1 Ra8 Bh7 Rh8 Bg8 Rh3 Bh7 Rg3 Qf3 Rg5 Qfb3 Rg3 Qd1 Rb8+ Kc6 Ra8 Rcc7 Qc8 Rdd6 Qd7+ Kb7 Kd8 Rdf6 Qd6 Rc6 Kd7 Re6 Rf8 Rc7+ Ke8 Rc8+ Qd8 Rd6 Rh8 Rd7 Rg8 Nd6+
8/1rBNb1rp/Q3P1kn/q2b4/1prp2BR/1Q5P/1pBPK2R/Q2nBn2 b - - 0 2 legal: proof: c4 a5 b4 axb4 f4 g5 fxg5 d5 Na3 e6 Nc2 e5 Nd4 exd4 cxd5 Ra6 Kf2 Ra5 Ke1 Ra8 a4 c5 g4 b5 e4 f5 Ke2 Kf7 a5 c4 d6 f4 d7 b3 g6+ Kf6 g5+ Kg7 e5 c3 a6 c2 a7 Bb4 Bh3 Ba3 Nf3 Bd6 Ba3 c1R Bg4 Be7 Bd6 Qa5 d8B Qb4 B6c7 Bf8 Ra6 Qc3 h3 Be6 Rh2 Qa5 Rc6 Rc3 Qa1 Nd7 Ra6 Rc8 a8Q b2 Rc6 b4 Qa6 Rc4 Rc5 Bd6 Bf6+ Kf8 g7+ Kf7 Bfd8 Ndf6 g6+ Ke8 Be7 Ne4 Bf6 Nh6 g8B Rc3 Rd5 Nf2 Bh4 Nd1 Be1 Rb8 Rc5 Ba2 Bb3 Rg8 Bc2 Be7 e6 Rb7 Ne5 Kf8 Nd7+ Kg7 Rh5 Bd5 Rh4 Rc5 Ne5 Kf6 Nd7+ Kg5 g7 Rc4 Bh5 Rf8 Bf3 Rf6 g8Q+ Rg6 Qf8 Rg8 Bg4 Rg7 Kd3 Kg6 Qfa8 Qc5 Q6a3 Qa5 Qa6 f3 Qb3 f2 Bf4 f1N Bd6 Qb5 Bc7 Qa5 Ke2+
3K4/1p1QRrp1/3P2P1/1n1p1Qr1/1kRN1Q2/3BP2Q/Rn2p1qb/1b1n1q1N b - - 0 1 illegal: No proof kernel
Q2n2Nq/R4BPq/1p1q2r1/6p1/bQ1pR3/1P1P1nkp/2RQK1Q1/1brN4 b - - 0 2 illegal: No proof kernel
N1B5/2Q1Kn2/1pq1p3/1PrrP1p1/1P1n1R1Q/1QN4b/3kbN1p/2n1BqN1 b - - 1 2 illegal: No possible last move
7q/N1pn1b2/pp1n1RN1/PQ1p3r/Pkr1QRK1/r3B3/3b2PQ/R3R2q b - - 0 1 illegal: No proof kernel
4b2n/4K3/1QNB1pr1/NRp1pR2/p1rrQ2q/P1N3Q1/P4Pn1/kb4Qq b - - 1 2 illegal: No proof kernel
b1K2B2/1pPR2Rp/qr3Nbq/3R1qnP/2rpB3/p7/kB1PQnB1/Q7 b - - 0 2 illegal: Other
1b1nq3/p4br1/Q1B1n2p/P1r1B2p/1k1N2Q1/1N1pB1BP/P2n1q2/2QK3R b - - 0 2 legal: proof: d4 f5 b4 c5 e4 cxd4 exf5 Na6 Nd2 Nb8 Rb1 Qa5 bxa5 g6 Rb3 Nc6 Rh3 Nb8 Rh5 gxh5 c4 e5 g4 Ke7 f4 Kd6 f6 Kc5 g5 b5 h3 d5 f5 b4 f7 b3 f6 h6 g6 e4 g7 b2 Ke2 b1N Bb2 d3+ Ke1 d4 Qe2 e3 Qh2 e2 Bg2 Nc6 Ngf3 Be6 Qg1 Nd8 Qf1 Kb4 c5 Rh7 c6 Bd6 f8B Rc8 c7 Bf7 Nb3 Ne7 g8Q Ne6 Qg4 Nd2 Bg7 Be5 Bc1 Nc6 Qg1 Ncd8 Qe3 Ra8 c8Q Bb8 Bh8 Rg7 Qa6 Bh2 Qg1 Rc8 Qf1 Bb8 Qg1 Bg6 f7 Rc5 f8B Bf7 Qe3 Nc4 Bd6 d2+ Kf2 d1Q Bg3 d3 Nfd4 Nd2 Bc6 Qc2 Ke1 Qc4 Qeg5 Qd5 Qe3 Qd7 Qef4 Qe8 Qf1 Nb1 Be3 Nd2 Qg1 Rg8 Bhe5 Rg5 Kf2 Rg7 Qc1 e1Q+ Kg2 Qd1 Kf2 Qf3+ Ke1 Qf2+ Kd1
4rQ1N/Bkp4b/4np2/BqPq1Q1r/1RB2nB1/1P1pb3/q1p2P2/R2R2K1 b - - 1 2 legal: proof: g4 e5 a4 b5 c4 h6 Nc3 h5 d4 exd4 axb5 dxc3 gxh5 Rh6 Ra4 Rh7 Ra1 Rh8 h4 a5 e4 d5 b6 Kd7 c5 Kc6 h6 g5 h5 d4 b3 c2 b7 g4 h7 f6 h6 a4 e5 g3 e6 a3 e7 a2 e8B+ Bd7 Qh5 g2 Qf5 Ne7 Ne2 g1Q Bd2 Ng6 Ba5 Nf4 Bh5 Qg6 Bg4 Qge8 Rd1 a1Q Rh4 Qa2 Ra1 Ne6 Nf4 Na6 b8B Nb4 Ba7 Nd5 Bc4 d3 Kf1 Kb7 Ng6 Ndf4 Kg1 Bc6 Rh1 Be4 Rd1 Qd5 Rh4 Rg8 h8R Qb5 h7 Bh6 Rh1 Rgb8 Re8 Rc8 h8Q Rab8 Re7 Re8 Qf8 Rbd8 Nh8 Rc8 Qh5 Bh7 Qf5 Rcd8 Rg7 Rd7 Rg8 Rg7 Rh4 Rg5 Rg7 Rh5 Re7 Ng7 Ree1 Nge6 Ra1 Ng2 Rec1 Be3 Rd1 Ngf4 Bf3 Qd7 Bb5 Ng6 Rb4 Ngf4 Bc4+ Qb5 Bg4
b2n1q2/2N2qPP/p6r/1pNR2K1/nr2QN2/1PB3p1/1bB1Q1p1/1B3rBk b - - 0 1 illegal: No proof kernel
r1bq4/2P2p2/p3p1QN/1p1n4/2NBRn2/KP1b1QR1/2Q1qbP1/R1Q2r1k b - - 0 1 illegal: No proof kernel
3b1nQN/Bpp5/1P2p2Q/4Bq1B/1q4N1/p3Pr2/2kqr1PK/nbBR1N2 b - - 0 2 legal: proof: h4 g5 hxg5 d5 c4 f5 cxd5 f4 e3 f3 Na3 Bg4 Nc2 Bf5 Na3 Bc8 b4 Bh6 d3 Nc6 Bb2 Na5 Be5 Nb3 Bf4 Nc1 Kd2 Nxa2 Rb1 Bf8 Rb2 Qd7 Ke1 Qd8 Re2 fxe2 Kd2 Bh3 Qc1 Bd7 Qd1 Bc8 Ke1 Kd7 d4 h5 g6 a5 b5 e6 g7 a4 d6 h4 d5 h3 Be5 h2 f4 Nb4 Kf2 Qg5 f5 Qd8 Kg3 Ra6 f6 Ra5 f7 Nf6 g8Q Nc2 Nh3 e1Q+ Nf2 Qb4 Ng4 Nh7 Nc4 Na1 Be2 Be7 Nd2 Nf8 Nf1 a3 Rg1 h1Q Qb1 Qh5 Qbh7 Ra8 Qh6 Qf5 Kh2 Ra6 Bb2 Rc6 Bc1 Rc2 Bd1 Re2 Rh1 Ng6 f8B Bf6 Bg7 Nf8 Rg1 Bh4 Bd4 Rh7 Ba7 Rg7 Nf2 Rg3 b6 Rf3 Rh1 Qdf6 Rg1 Qfc3 Ng4 Bd8 Rh1 Qd2 Rg1 Ke8 d7+ Ke7 Rh1 Kd6 Rg1 Kc5 d6 Bf6 d8N Kc4 d7 Kc3 Nf7 Kd3 d8B Bd7 Be7 Be8 Bd6 Bd8 Nh8 Ba4 Bf4 Bc2 Be5 Bb1 Ba4 Qa5 Be8 Kc2 Bh5 Qab4 Ng3 Qbc3 Rd1 Qb4 Nf1
2q2RnR/2p1bqRb/1nKpBp2/1R1Npr1q/Q4PQ1/8/Pk2P1QN/3r4 b - - 1 2 legal: proof: g4 e5 d4 h5 c4 hxg4 b4 a5 d5 b6 c5 Qe7 Bd2 Qe6 dxe6 Rh4 cxb6 Rh7 b5 Rh8 Bb4 axb4 Kd2 Ke7 Kd3 Kd6 Ke4+ Kc5 f4 Kc4 h4 g5 b7 f6 h5 g3 b6 b3 h6 g2 h7 b2 e7 g4 e8R g3 Rh4 Be7 Nf3 g1Q Bh3 g2 Nh2 Qh1 Rg4 g1Q+ Rg2 d6 Rf8 Nd7 b8Q Ra3 b7 Nb6 Qa8 Rd3 Nc3 b1Q b8Q Qb3 Rb1 Bg4 Qc2 Rd1 Qc8 Kb4 Qab7 Ka3 Nd5 Bh5 Bf5 Bg6 Qd7 Qh3 Rb5 Qb3 Qc4 Kb2 Qa4 Qf1 Nf3 Qh3 Nh2 Qh5 Rg3 Qfh3 Qbc6 Bf7 Rg7 Bg6 Qe6 Nh6 Qc8 Rg8 h8R Bh7 Q6e8 Q3g4 Qg6 Qgh3 Qg2 Q3g4 Rgf7 Rg5 Rg7 Ng8 Qd7 Rg6 Be6 Rg5+ Rg6 Rf5 Rg7 Na8 Qe8 Nb6 Qg6 Qgh4 Q6g3 Qe8 Q3h3 Qhh5 Qhg4 Qc8 Ne3 Nc4 Bf7 Rg1 Kd5 Nb6+ Kc6 Rh1 Nc2 Rd1 Nb4 Qbh3 Bd5 Qf7 Be6 Qhh5 Nd5+
1K3nN1/1nP1pNp1/2b1q3/1pQ1BBQ1/3RPr2/1bp3BQ/qPb1k1r1/2B5 b - - 1 2 illegal: No proof kernel forced: wxDB
1B1b1n1N/pk1b2q1/1QR1rP2/6R1/r2qQ1pn/1q1Q3R/P3p1pP/NQK5 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Bf8 e4 hxg4 e6 f5 e5 Rh5 Bd3 Rh8 Be4 fxe4 Kd2 g3 f4 d5 c4 g5 c6 b5 f5 d4 f6 b4 c7 d3 c5 g2 e7 Kd7 e8R Kc6 e6 b3 e7 b2 Nh3 Qd7 Na3 b1Q Nc2 Rh4 Rg1 Qb3 Nf4 Nh6 Ng6 Rg4 Nh8 Kb7 Qf1 Nf5 c6+ Kb6 Rd8 Nh4 e8Q Qg7 Qe2 Be6 c8Q Be7 c7 Nd7 Qf1 Nf8 Qcd7 Rf4 c8Q Bh3 Kd1 d2 Qf5 Rb8 Rd3 Bd8 Qce6+ Kc7 Ba3 Rb6 Bd6+ Kb7 Bb8 Ra6 Qfg6 Ra4 Qd6 Bd7 Rh3 Rf3 Qee5 Re3 Rc1 Re2 Qa1 Re3 Qb1 g4 Qb6+ Ka8 Qe8 Qc4 Na1 Qd4 Rc6 Re1+ Kc2 e3 Qd3 Re2 Rf1 Re1 Qc1 d1Q+ Kb1 Re2 Rf5 Qb3+ Qb2 Qh7 Kc1 Qg7 Qa5 Kb7 Rg5 Rf2 Qee5 e2 Qee3 Rf4 Qbb1 Re4 Qc5 Re7 Qee4 Re6 Qb6+
B1b3r1/pbp5/3p1P2/Kn1BRQkP/1Br1qp2/2nPb2Q/1Q4bN/RB6 b - - 0 1 illegal: No possible last move, all moves rejected
6R1/2rQpn2/1R3qpr/k1QB1N1p/2KPn2N/N2PP3/Qr2Q1bp/2b2r2 b - - 0 1 illegal: No extended proof kernel
1Q2r3/3p4/2P1Bk2/Nnn1rprr/qR1R3p/1pbPbQ1P/5N1Q/4Q1RK b - - 1 2 legal: proof: f4 b5 b4 c5 a4 f6 f5 Bb7 Ba3 Qb6 axb5 Qc7 b6 Qd8 b5 Ba6 Bb4 cxb4 g4 Bb7 g5 Bd5 g6 Bf7 Ra6 e6 gxf7+ Ke7 Ra5 exf5 Ra1 f4 Kf2 h5 Kg2 a5 c4 g5 e4 g4 b7 b3 d3 f5 b6 g3 e5 a4 c5 h4 c6 a3 e6 a2 Nd2 Kf6 e7 Bh6 e8Q Ne7 Nh3 Nc8 Rg1 f3+ Kh1 f2 Qee1 Na7 Nc4 Be3 Bg2 f1R Qf3 Nb5 Nf2 Na6 b8R Rh5 b7 Nc5 h3 Qa5 Rc1 Qb4 Na5 a1B Rc4 Bc3 Rd4 Qa4 f8Q+ Ke5 Qd2 Re1 Qe8+ Kf6 Qee4 Bh6 Qef4 Re5 Qe1 Bg5 Rd8 Rc8 b8Q Bh6 Rg8 Rce8 Rg4 Bg5 Rb4 Bh6 Qfd2 Be3 Rgd4 Bf4 Qg4 Be3 Bd5 g2+ Kh2 Rf8 Qf3 Rc8 Be6 Re8 Rf1 g1R Qde2 Rgg5 Rg1 Rg4 Kh1 Rg7 Nd1 Rgg8 Qh2 Rgg5 Nf2
2R1n2B/1p4N1/3n2kN/1rb1ppN1/2Ppbb2/BP2rQq1/1P1K2B1/B4Qb1 b - - 0 1 illegal: Other
1B1q2r1/5Q2/K1kN2p1/1Np1p2N/B1P1B1Pb/n1p1qq2/bNPQ1r2/1R4b1 b - - 0 2 illegal: No proof kernel
1k6/7r/1QP2p1q/3R1rpB/KpR2PqQ/BP1nN2b/Q1pr2Qb/2Rq4 b - - 0 1 illegal: No proof kernel
6R1/1bQk3K/1R2p3/R2B1Qpp/4RBNP/1rprb1q1/2qrPP1n/5bB1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 g4 f6 g5 Nd7 Nc3 Ra4 Ne4 Ra6 Bb2 Ra8 Bc1 f5 Nf6+ Kf7 Ng4 Ndf6 gxf6 fxg4 Qc2 Ke8 Qb3 Bf5 Qd1 Bc8 a4 g5 h4 b5 d4 c5 Kd2 h5 Ke3 b3 Ke4 b4 a5 b2 d6 b1B+ Qc2 b3 d7+ Kf7 Kf5 g3 a6 b2 a7 c4 d5 g2 d6 c3 Ra5 Qe8 Nf3 g1R Bf4 Rg3 Bg2 Bb7 d8R Rb8 Nh2 Rd3 a8R Qb5+ Bd5+ e6+ Ke5 Qc4 d7 Bc5 Ng4 Nh6 Rg8 Be3 d8Q Qc7+ Qd6 Rd2 Qf5 Be4 Rb1 Bg2 Bh2 Bh3 Bg1 Bf1 R8a6 Rh7 Rb6 Rg7 Rba1 b1Q R1a4 Qc2 Re4 Rd8 Ra8 Rh7 Ra5 Qb8 Qc7+ Rd7 Rg7+ Ke8 f7+ Ke7 f8B+ Ke8 Bb3 R7d3 Kf6 Rh8 Kg6 Rh7 Nh2 Ng4 Bd6 Rh8 Bf4 Rg8 Nf3 Nh2 Ne5 Rf8 Ng4 Rf7 Qcc5 Kd7 Rg8 Rf8 Kh7 Qc7 Bd5 Rb8 Bg3 Qf4 Qc4 Qf3 Bf4 Qg3 Rab5 Ra8 Rc5 Ra3 Ra5 Rb3 Qc7#
Q6b/4p2R/n2B4/q2rq3/4NPKp/NQ1pP2B/nkpPrr2/1N1Qq2Q b - - 0 1 legal: proof: h3 f5 Na3 g5 Nc4 b6 Ne3 g4 Nc4 f4 Na3 g3 Nb1 Bb7 Nc3 Bf3 Nb1 Bg4 hxg4 f3 a4 fxg2 b4 a5 c4 Nh6 c5 Ng8 Ra2 Bg7 Rb2 Bh6 cxb6 Bg7 b5 Bf8 Rb4 axb4 f4 Kf7 g5 Ke6 e3 Kd5 Ke2 Kc4 a5 c5 a6 h5 b7 d5 b6 b3 a7 d4 Kf3+ d3 g6 b2 g7 Na6 b8Q Nf6 g8Q+ Nd5 b7 Qa5 Qe6 Bg7 Qf6 Nc3 Qc8 Na2 Qe8 Rd8 b8N Rd5 Ne2 g1R a8Q g2 Qe1 Kb3 Qfh4 c4 Qf7 c3 Nd7 c2 Na3 b1Q Qd1 Qa1 Nf6 Qe5 Nc3 Rg8 Qe6 Bh8 Ncb1 Rg7 Rh3 Rh1 Bb2 g1Q Ne4 Rg2 Bd4 Rgh2 Bc5 Re2 Bd6 Rhh2 Qhe1 Kb2 Rh4 Qgg7 Bh3 Qg1 Qf1 Qh1+ Qg2 Qe1 Qh1 Rb5 Qc4 Rd5 Qb3+ Ka1 Rg4 h4 Rg7 Rhf2+ Kg4 Rf1 Qa4 Kb2 Rh7 Rff2 Qb3+
1Q6/2bpN1b1/1BNk1pbp/Qp1Pb2P/1N2Q2Q/KRb3q1/1n2nrP1/7B b - - 0 1 illegal: Other
8/1bb1p1Qp/Q3PPbq/bN1RNr2/n1r2r1k/2p1N3/p1PR3Q/1B4KN b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 a4 gxh4 axb5 f6 e5 c4 e6 Na6 Bf4 Nc5 Be5 fxe5 dxc5 Bh6 Ra5 Bg7 Ra1 Bf8 g4 a5 b4 d5 f4 h3 Kf2 h2 c6 d4 b6 e4 b7 d3 b8N a4 f5 d2 b5 a3 b6 Ra4 c7 Bb7 c8Q Bh6 g5 Nf6 g6 Nd7 g7 Nc5 g8N Bf4 Nc3 Bc7 Nh6 Kf8 Nd7+ Kg7 f6+ Kg6 Nb5 Kg5 Ne2 Qf8 Ng4 Qh6 Ne3 Kh4 Ng3 Rg8 Qa8 Rg5 Qa6 Rf5+ Kg2 Rb4 Ne5 Na4 Bd3 Rf4 Qg1 d1R Be2 Rd4 Rd1 Rd5 Rd2 Rc5 Bf3 Rf5 Kf2 Rc6 Qg2 Rc5 Rf1 h1B Kg1 Rf4 Rfd1 Rf5 N3g4 e3 Bd5 e2 Ne3 e1B Qh2+ Kg5 Qg2 Rc6 Qh2 Be4 Nh1 Rc5 Qg2+ Kh4 Qg7 Rf4 Rg2 Bg6 Rgd2 c3 Bb3 Rbc4 Ba2 Bg3 Bb1 a2 Rd5 Rf5 R1d2 Rcf4 Na3 Rcc4 Nb5 Bc8 b7 Ba5 b8Q Bb7 N5g4 Rf3 Qc7 Bd6 Ne5 R3f4 Qcb6 Bc7 Qd4 Nc5 Qd3 Na4 Qe2 Bb8 Qg2 Bbc7 Qh2+
1BKn2k1/2Nn3r/2p1p2P/1QP1bbp1/RqN4R/1N1QQ1P1/1p1n2Nn/2q5 b - - 0 1 legal: proof: f4 d5 e4 h5 f5 a5 b3 b5 f6 h4 g3 h3 Bg2 hxg2 exd5 e6 b4 axb4 Kf2 Kd7 Ke2 Ra6 Ke1 Rd6 Ke2 Ke8 Kf2 Rd7 Ke1 Re7 fxe7 Kd7 Kf2 Ke8 Kf3 g5 Ke4 f5+ Ke5 Kf7 e8N b3 c4 c6 a4 f4 d4 b4 h4 b2 d6 f3 h5 b3 d7 f2 d5 f1Q h6 Qf2 d6 Qe1+ Qe2 Qda5+ c5 Qf1 d8Q Qfe1 d7 Ba6 Nd6+ Kg6 Nf3 Kh7 Qe3 g1N Nh4 Qab4 a5 Ne7 Ng2 Qd1 Qb6 Nc8 d8Q Bd3 a6 Bf5 a7 Kg8 a8N Rh7 Nc4 Nd6 Rh4 Nb7 Qdd3 Nd8 Qb5 Bg7+ Kd6 Nd7 Kc7 Be5+ Kc8 Nf3 Nbd2 b1N Nc7 b2 Nb3 Nh2 Ra4 Qde1 Bd2 Qc1 Bc3 Nd2 Bd4 Bg7 Be5 Bh8 Na8 Bf6 Bb8 Be5 Nc7
4rk2/1p1Kp1qP/1PBn2pN/1QQq2B1/rnN1q2q/6Pp/1N2R3/3BB1b1 b - - 0 1 illegal: No proof kernel
1R6/1p2qnb1/RPP1ppN1/Rn2pNQk/2Qn1Bq1/3r4/2N1PK1N/2r1n3 b - - 0 1 illegal: No possible last move
3q4/1bQ2pr1/B2p1Nbn/1Rp3p1/B5QB/r2b2P1/1q1P1PNQ/kQ1bK3 b - - 0 3 illegal: No proof kernel
BQ1Q1r2/6Br/3p2nq/b1Rp1p1p/5PBP/1N1P1K2/3q1N1N/rBk1r1r1 b - - 0 1 illegal: No possible last move
4QK1R/1p1b1Q2/5rb1/p1B5/3r1k1p/pQ2p1qR/PNP1Pnn1/R1Q1N1n1 b - - 0 2 illegal: No proof kernel
1brQ4/4Rqp1/2nN1Q2/r4BB1/2rpR2B/1pR1PKPn/pP1p2R1/1k5b b - - 0 2 legal: proof: f4 c5 d4 cxd4 a4 h5 g3 e5 fxe5 b5 Nd2 b4 Nc4 h4 Ne3 h3 Ng2 hxg2 Bd2 Qa5 Bc1 Qb5 axb5 Rh6 Kd2 Rh7 Ke1 Rh8 Kf2 Ke7 h4 Ke6 c4 Kf5 b6 Ke4 c5 a5 h5 f5 b7 d5 e6 f4 c6 b3 e7 d3 e8R+ Be7 h6 f3 h7 d4 c7 a4 Rh2 a3 Nh3 g1R Rg2 a2 Bg5 d2 Bh4 Nc6 b8B Bb7 c8R Ra5 Bf4 Nf6 Bfg5 Nd5 e3 Rg8 h8Q Nf4 Rc1 Rh1 Rc7 Ba8 Rf8 Bd6 Rc3 Rg1 Rb8 Rc8 Qd8 Bb7 Ra8 Rh1 Rd7 Bb8 Bb5 Rg1 Qf1 Rh1 Ba4 Rg1 Qa6 Rc1 Bb5 Rc2 Bc4 Rc1 Be6 Rc2 Re7 Rc1 Rc5 Rc4 Re5+ Kd3 Re4 Kc2 Bf5 Kb1 Ra7 Nb4 Qf6 Ba8 Rac7 Nc6 Bh6 Bb7 Ng5 Ba8 Nf7 Nh3+ Kf1 f2 Ke2 Bb7 Nd6 Ba8 Kf3 f1Q+ Kg4 Rc2 Bf4 Qc4 Kf3 Qf7 Bh6 Rc4 B6g5 Ne5+ Ke2 Rc2 Rg1+ Rc1 Rf4+ Be4 Rc2 Bg2 Re4 Bh1 Rg2 Nc6 Rc5 Rc2 Kf3 Rc1 Rc3 Rc2 Rd3 Rc4 Rc3
B3N1r1/4pbRB/1Bp1Q3/5br1/3R1P2/kpbB2pq/pQP1PnQ1/3n1K2 b - - 1 2 illegal: No proof kernel
Nn4N1/BKbP4/r2pp1bk/7r/pp1RQ1R1/2N1q1p1/PP2Rq2/1R4Qn b - - 1 2 legal: proof: e4 f5 exf5 h5 c4 d5 g4 Nf6 gxh5 Ng8 d4 Nh6 c5 Qd6 Bc4 dxc4 d5 Qd8 d6 Kf7 d7 Ng8 Qd6 cxd6 Ke2 g5 Ke3 Kg7 Ke4 a5 Kd5 b5 h4 g4 f4 a4 h6+ Kh7 h5 c3 f6 g3 f5 b4 c6 c2 f7 Qc7 f6 Qa7 c7 Bg7 f8Q Nc6 f7 Rb8 Na3 Qb6 Qe8 Nd4 f8Q Nb5 Ne2 Bd4 Rd1 Ba6 c8N Be5 Qf2 Qe3 Kc6 Qd2 Rb1 Nc3 Qg1 Bf4 Nb5 Be3 Nc7 Ne4 Nc3 Qf2 Rd4 Bd3 Na8 Rb6+ Kc7 Bg5 Be3 Ra6 Kb7 e6 Ne7 c1Q Qf8 Ngf6 Ng8 Nd5 Qf3 Bd8 Qe2 Bc7 Qc2 Nd2 Rg4 Ne7 Ba7 Bg6 Qe4 Nc6 Ne7 Re8 Ng8 Kh8 h7 Kg7 h8R Nb8 Rh6 Rf8 Rh8 Rf5 Rh6 Qce1 Rh8 Qee3 h6+ Kf7 h7 Kg7 Ne7 Rfa5 Rc8 Rc5 h8R Rh5 Rhf8 Kh6 Rff4 Nf3 Rcf8 Ne1 R8f5 Nd3 Rc5 Qfd2 Re5 Nf2 Ng8+ Kh7 Rd5 Nh1 Rd4 Qdf2 Rd2 Kg7 Re2 Kh7 Qeg2 Kg7 Rd4 Kh7 Qe4 Kg7 Nf6 Kh6 Ng8+
kq1R3Q/pP1Bp2n/1B1bQ1N1/3pPrQ1/1pp4K/3b1p2/1P1B1rR1/2B3n1 b - - 0 2 illegal: No possible last move, all moves rejected
1r6/2p1nr1p/3Nb1NK/3qRp1P/Q1BR1nq1/2Pn1PqN/2R1N1bQ/6bk b - - 0 1 illegal: No possible last move
K5RQ/2N2p2/1R2p1kp/bqq4q/1Rb4n/rQbNPPNP/8/R1qB1rn1 b - - 0 1 legal: proof: d4 g5 a4 c5 f3 cxd4 Be3 b5 axb5 g4 Bf2 g3 Kd2 gxf2 Kd3 a5 Kc4 d5+ Kc5 d3 g4 d4 c4 d2 b4 d3 e3 a4 g5 a3 g6 a2 g7 Nh6 g8R Qd5+ Kb6 e6 c5 Nf5 c6 Ra3 c7 Ba6 Ka7 Nh4 c8Q+ Ke7 b6 Kf6 b7 Qc5+ Ka8 Nc6 b8R Nd4 b5 Ne2 Nh3 Ng1 Qb3 d1Q b6 d2 b7 Qdc1 Nc3 d1Q Nf4 Qdd5 Be2 f1Q Nd3 Qh5 Bd1 h6 Rb1 a1B Ne2 Bc3 h3 Bd6 Qe8 Bc7 Ng3 B7a5 Ra1 Bb5 Rh2 Rh7 Rb2 Rg7 Qf8 Rg6 Qg7+ Kg5 Qh8 Bc4 Qb6 Qf2 Rb4 Qe2 Qb5 Rg7 Qa4 Kg6 Qb3 Qb5 Rbc8 Qbd5 Rc6 Qc5 b8N Qeb2 Na6 Qbb1 Qc2 Qb3 Qb2 Qa4 Qb3 Qab5 Rgc8 Rg8 Nc7 Rd8 Rb6 Rd6 Ne1 Rd2 Rd8 Rf2 Nd3 Rf1 Rg8+
3r4/1k1p1qp1/2bPp2n/B2bq2B/2rNQR1q/Kp2PnP1/3N3b/QQ2BB2 b - - 0 1 illegal: No proof kernel
4QR1K/1p2B1p1/n1N1p1RQ/1B1q2Pr/QPq2B1n/1b2PB2/pq1n1r1b/6k1 b - - 0 1 illegal: No proof kernel
1nq1b2k/RBppN3/n2b1rpK/1pNr4/2PP2N1/QNQ5/3Br1P1/1q1Q1n2 b - - 0 1 illegal: No proof kernel
5B2/BNQr1bpr/1N2n3/b1N1pBp1/n5PQ/p3P1qn/PR1p1qB1/k2K4 b - - 0 1 illegal: No proof kernel
1R1b4/P1B1N1kB/1K3pBB/P1Np4/6Pr/r1b2p2/BQ4q1/1bB1n2r b - - 0 1 legal: proof: d4 a5 b4 c6 bxa5 Ra6 d5 Ra8 Qd3 Qb6 Qxh7 Qc7 e4 Qd8 e5 d6 exd6 cxd5 a4 g5 f4 e5 Ra3 e4 Rf3 Nd7 Rf2 Ne5 fxe5 Qd7 Rf6 Qd8 Rf4 gxf4 Ke2 b5 c4 f6 h4 b4 g4 e3 Kd3 e2 Kd4 e1B Kc5 b3 e6 b2 e7 f3 h5 Ba6 h6 Bc3 Qc2 Kf7 e8B+ Ke6 h7 Qb8 Ne2 Ne7 d7 Qh2 d8B Qg3 Kb6 Qg2 c5 Bb4 c6 Bg7 c7 Ba3 c8B+ Ke5 Bg6 Bf8 Nd2 b1R+ Qb2+ Kd6 Nb3 Bc4 a6 Nf5 Nf4 Be7 Nc5 Nd4 Bcf5 Ba2 Bc4 Bb4 Rh2 Ke5 Bb3 Bc3 Bc7+ Bd6 Bc4 Nc2 Be4 Ra1 a5 Ne1 a7 Bb1 Bc2 Ra3 Ba2 Rae8 Nfe6 Reg8 Ng7 Rd8 Nf5 Rb8+ Nb7 Ke6 Ne7 Rbf8 Bge4 Kf7 Bg6+ Kg7 Nc5 Qh1 Re2 Qg2 Re6 Bh2 Rd6 Bhe5 Rd8 Re8 Rb8 Bd6 Nc8 Be7 Bce4 Bd8 Bc2 Re5 Ne7 Rh5 Bcd3 Rh1 Bde4 Rg8 h8B+ Kf8 Bef5 Rg7 Be4 Rgh7 Bef5 R7h3 Bh7 Kf7 Bg7 R3h2 Bgh6 Rh4 Bhf4 Kf8 Bfg6 Kg7 Bh6+
2b3Rk/K1n3r1/1p2nB2/P1r3Rp/NN1pBB2/Bp4n1/PP1B4/3N2b1 b - - 0 1 illegal: No possible last move, all moves rejected
rr6/5rR1/2B1n1r1/1kPRB2q/1N4RN/R1P4r/2KRb1PN/r2nbq2 b - - 0 1 legal: proof: b4 a5 h4 g5 d4 gxh4 e4 b5 a4 f5 exf5 c5 dxc5 Qb6 Qd2 Qa6 axb5 Qa7 b6 Qc7 b5 Qd8 Qb4 axb4 Kd2 h5 b7 e5 b6 d5 f6 Kd7 f7 Kc6 Rh2 b3 Bd3 d4 Rh3 b2 Nf3 e4 Na3 b1R Ba6 e3+ Kd3 e2 Rg3 e1Q Rg5 h3 Nc4 h4 Ra2 h2 Ra3 h1R Ne3 h3 Rh5 h2 Bb2 Nd7 b8R Qh4 b7 Rf1 Ng4 h1R Ngh2 Ne7 Rd5 Qh5 Nh4 Ra1 f4 Bh6 f8R Nf5 Rd8 Nf8 R8d7 Ne3 f5 Nd1 f6 Ne6 f7 Bd2 f8R Rf7 Rfd8 Bb4 Bc3 Qf1+ Kd2 d3 Re7 Rf5 Rg7 Rf7 Rdg8 Bd7 Rbd8 Rh6 Rg4 Rg6 Rg7 Be8 R8d7 Rb8 Rd8 Ra2 Kc1 d2+ Kb1 Ba5 Be5 Bd7 Be2 Be8 Bf3 Kb5 Be4 Kb4 R8d6 Bb5 Rd7 Be2 c3+ Kb5 R7d6 Bc7 Bf3 Ra1+ Kc2 Ra8 b8N Bd8 Nf5 Bh4 Nc6 Be1 Nb4 Rb1 Be4 Rb3 Nh4 Rb1 N2f3 Rh3 Nh2 Ra1 Rd7 Rb8 Rb3 Raa8 Ra3 Nb2 R7d6 d1R Rd2 Ra1 Bb7 Nd1 R6d4 Nd8 Rd5 Ne6 Bc6#
2NN4/1R2R3/2P3Rr/rP1b1brn/1N1KNnq1/1kP4N/B4r1b/2b2qB1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 dxc5 g5 a4 Nc6 axb5 Nb8 e4 h5 exf5 gxf4 g5 Bb7 Qf3 Bc8 Qg4 hxg4 Kf2 Kf7 b4 d5 h4 e5 h5 a5 c6 d4 c3 g3+ Kf3 e4+ Ke2 g2 f6 Ke6 h6 Kd5 b6 Kc4 f7 f3+ Kf2+ d3 Ke3 a4 b7 a3 g6 f2 g7 a2 b5 Ba3 f8R Na6 b8N Nf6 g8N Qd4+ Kf4 e3+ Kf3 e2 h7 e1R Nh3 g1B Re8 Re2 Be3 d2 Ne7 Bf5 Nc8 d1B Re7 Nc7 Na6 Ncd5 Nb4 Bh2 Rg1 Ra5 Rg6 Nf4 Bg2 Rg8 h8N Kb3 Nf7 Bc1 Nd8 f1Q+ Bf2 N6h5 Nd2+ Kb2 Rb7 Bb3 Ne4 Bd5 Re7 Qg7 Bh1 Rd2 Ke3 Kb3 Bg1 Rh8 Bf3 Rh6 Be2 Qg8 Bd3 Rf2+ Kd4 Qe6 Neg5 Qee2 Ne4 Qg4 Rb7 Ba3 Rc1 a1R Re1 Bc1 Bb1 R1a2 Ned6 Rg2 Ree7 Raf2 Ne4 Qge2 Na6 Rg5 Nb4 Qg4 Ba2+
4qN1n/1NP1N1R1/1q3qP1/N1bb3q/5N1P/1Q6/2bb1rrN/2nkB1RK b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 e4 g5 exf5 Nh6 Bh3 Bb7 fxg5 Ng8 g6 Ba6 g5 Bc8 Bg4 hxg4 Kf2 a5 Kg2 d5 b4 Kd7 c4 Kd6 h4 Ke5 f6 Ke4 f7 e5 g7 d3 c5 g3 g6 a4 b6 a3 b7 d2 c6 Ke3 c7 e4 b5 d4 b6 a2 Bb2 d3 Bf6 Nh6 g8N Nc6 b8N Qe8 b7 Na5 Be7 Nb3 Qc1 Be6 Qd1 Nc1 Qf1 d1Q Bf6 d2 Nc3 Bc5 f8N Bd5 Na6 Nf7 b8N Qh5 Nc6 d1B Nf3 Bc2 Rb1 a1Q Nh2 Kd2 Nge7 e3+ Qf3 e2 Rg1 e1B Ne2 Kd1 Na5 Rh7 Rb7 Nh8 Kh1 Rf7 Rb8 Ra7 Bg5 Qf6 Bd2 Rb7 Rd8 Rb2 Rd7 Ra2 Rg2 Rb2 Qb3 Ra2 Bb4 Bd2 Bc3 Qd4 Bb4 Rf2 Nf4 Qf6 Bc3 Bde3 Be1 Bd2 Nf3 Rb2 Rg1 g2+ Kh2 Ba3 Nc5 Ra2 Ncb7 Bc5 Kg3 Rb2 Nh2 Ra2 Rh1 g1Q+ Kh3 Qgg5 Rg1 Qge5 Kg3 Qb6 Kh3 Qef6 Kg3 Rf3+ Kg2 Rb2 Kh1 Rf2+ Nf3 Rg2 Nh2 Bde3 Qa3 Be4 Nc8 Rbf2 Qb3+ Bc2 Rg7 Bd2 Ne7
1B1N4/1P1R3R/pn3K1b/P1nqQ3/1R4R1/1bB1q1R1/kPrR3r/2rnq3 b - - 0 1 legal: proof: e4 b5 f4 c5 c4 f5 cxb5 Kf7 exf5 g6 d4 Nf6 dxc5 Ng8 f6 Ke6 f7 Bh6 Qd4 Bg7 Qd1 Bf8 g4 Qc7 Bd3 Qd8 f5+ Kd5 f6 Ke5 Nd2 Ke6 Bf5+ gxf5 Ndf3 h6 g5 h5 Ne5 Bb7 Ng4 hxg4 Ke2 Ba6 Ke1 Bc8 Ke2 d5 Ke3 a6 Kd4 g3 a4 f4 h4 f3 g6 g2 a5 f2 c6 f1R c7 Qd6 h5 Qd8 g7 Qd7 h6 Rf5 b6 Rf1 Nf3 g1Q+ Be3 Qf2 Qe2 Rc1 b7 Qc6 h7 Nd7 Ra4 Nc5 Rh4 Kd6 Rc4 Be6 Rb4 Rc8 Ng5 Qb5 Rh2 Kc6 Ke5 d4 Rh5 d3 Bf4 Bb3 Ne6 d2 Rh4 d1N Rg4 Qg1 Bd2 Rc2 Bc3 Qe3+ Kf5 Kd5 Nd8 e5 Qh2 Bd6 f8R e4 f7 Nf6 g8R Nfd7 R8g7 Bg3 Rfg8 Bf4 f8B Bh6 Bd6 Nb6 Kf6 Qc4 Rd7 Qcd3 Rb5 Kc4 Qe5 Qd5 R8g5 Qed4 Rg8 e3 R8g7 e2 Rb4+ Kd3 R7g6 e1Q Rg3+ Qde3 R6g4 Rb8 c8R Rc1 Qf4 Kc2 Qe5 Kb1 Rc6 Rc8 Bb8 Ka2 Rcd6 Rg8 h8R Rg5 Qf5 Rh5 Rhh7 Rh2 Qe5 Ne6 Bd4 R8c2 Bc3 Nc5 Rc6 Qg8 Rcd6 Qc4 Rdd4 Qd5 Rd2
1BnrbqBn/q3n2k/Bb4P1/1r2P3/KBB3R1/2p5/PQR1nr2/1B1N4 b - - 0 1 illegal: No possible last move
R3qrB1/Pq2b3/Nq1n1p1b/r1R1BP2/N1P5/1R1r4/k2n1K2/NqR2R2 b - - 0 1 legal: proof: e4 d5 exd5 a5 d4 c5 dxc5 h5 g4 f6 b4 axb4 g5 Be6 g6 Bf7 gxf7+ Kd7 Qg4+ hxg4 h4 b5 a4 e5 c4 g5 f4 e4 c6+ Kd6 a5 Kc5 a6 b3 d6 Kb4 f5 e3 d7 e2 c7 b2 c8N Kb3 h5 g3 h6 g4 h7 g2 Bh6 b4 Kf2 e1R Nh3 Re3 Be2 Be7 f8R Nc6 Nb6 Nd4 Bf4 Nf3 Na4 Nd2 Be5 Nh6 Bf3 Nf7 Bd5 Nd6 Na3 b1Q Rc1 Qe8 d8R Rd3 Bg8 Ra7 Rb8 g1B+ Ke1 g3 Nf4 g2 Ne6 Bd4 Nc2 Be3 Nc7 Bh6 Kf2 Qb2 Rab1 Ka2 Na1 b3 Rb5 Ra8 Rc5 Ra7 Rf1 Ra8 Rbc1 g1Q+ Ke1 Qh1 Kf2 Qb7 Rf7 Qb6 Rg7 Qb1 Rg3 b2 Re3 Rd5 Rb3 Rd3 Bd5 Rf8 h8R Qc2 Bg8 b1Q Kg2 Qcb2 Kf2 Rd8 a7 Qb7 Rbc3 Q2b6 Na6 Rd5 Re3 Rd7 Rc7 Ra5 Rc5 Nc8 Rb3 Rd3 Rh7 Nd6 Rf7 Bd8 Rc7 Be7 Rc8 Rh3 Rb8 Rd3 Ra8
2NK2Rb/1rPR1q2/r2P4/P3rN1N/b6n/1N1B1N2/q1pq2rk/1Q3rN1 b - - 0 1 legal: proof: e4 d5 b4 c5 c4 h5 g4 f5 gxh5 Nd7 exf5 Nb8 b5 dxc4 Ba3 a5 Bb4 Nc6 bxc6 axb4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 f4 b5 d4 g5 a4 c3 f6 c2 h6 c1Q f5 g4 f7 b3 d5 g3 a5 b4 f6 c4 h7 b2 c7 b3 d6 g2 Bd3 c3 Nd2 b1Q Ndf3+ Kg4 h4 Kg3 h5 b2 h6 Bg7 f8N c2 Ng6 Qd7 Nf4 Qd2 Kd5 e5 f7 e4 f8N e3 N8e6 e2 Nc5 e1R Nb3 Qe7 Kc6 Qa2 Qb1 Qf7 Rh4 Re5 Nh5+ Kf2 Rg4 Bd7+ Kb7 Bf6 Rg7 Ra6 Kb8 Be8 Kc8 Ne7+ Kd8 Rf8 h8N Rg8 Ng6 Nf5+ Ne7 Nh4 Rh7 Bh8 Nf5 Rg5 Rg7 Ba4 h7 Rg4 Rg5 Rb4 Rg8 Rb7 Rg7 Qg6 Rd7 Qf7 Qc1 b1R Qb2 Rf1 Qb1 Bg7 h8N Bf6+ Ne7 Bg7 Nhg6 Bh8 Nc8 Rbb6 Ngf4 Rb7 Ng7 Kg3 Nf5+ Kg4 Nge2 g1R Nh5 Rg2 Neg1 Rgf2 Ne2 Kh3 Neg1+ Kg2 Qb2 Rfe2 Rd1 Kh1 Qb1 Rg2 Re1 Rc5 Re8 Re5 Ng5 Kh2 Rf8 Rff2 Rg8 Rf1 N5f3+
3KNNB1/NQp5/2b3Pb/3b2nR/4P1Nn/q1q2P2/4N1Nq/Rb1q1kr1 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 f5 a4 fxg4 axb5 Be7 d6 Bf5 d5 Bf8 Be3 Bd7 Bd4 Bc8 h4 exd4 Ra4 g5 Nf3 a5 Ng1 g3 Ra3 g4 Ra1 Ra7 Rh3 Ra8 Rh2 Nh6 Rh3 Rg8 Rh1 Rg5 hxg5 Ng8 Qc2 Kd7 Qd3 Ke8 Qd1 Kd7 Rh4 Nh6 Kd2 Qe8 Ra3 Bb7 Re3 Be7 Rd3 Na6 Bh3 Rd8 Nc3 Bc8 Ke1 Nb8 Nb1 Qf8 Rh5 Qf6 Rf3 Rh8 Ra3 Ke8 Bf1 Ng8 Rh1 Bf8 Ra1 Qd8 Kd2 Kd7 Kd3 h5 Kc4 h4 Kc5 d3 b4 g2 g6 d2 b6 g3 b5 a4 b7 h3 b6 h2 Nf3 g1Q Ra3 g2 Nc3 Nc6 Qb1 d1B Ne1 Nce7 e3 Bf3 Bc4 Nh6 b8N+ Ke8 b7 Nf7 Nd7 Nf5 Kc6 Qf6 b8N Ng5 Ra2 a3 Ne5 Be4 Qb5 Bb1 Qb7 Be6 d7+ Ke7 d8N Rh4 Ng4 Bh6 Nd7 Qg7 Nge5 Rg4 Nf8 Kf6 d6 Qf1 d7 g1Q Ndf7 Rg2 Ra1 a2 d8N Qe2 Nd6 Qd1 Bd5 Bf7 Kd7 Rg3 Ndc6 Qg2 Rf1 h1B Bb3 Qh3 Na7 Bc6+ Kc8 Bg8 Rh1 Rg1 f3 Qg3 Rh3 Qh2 Rh5 Nh4 Ne8+ Kf5 e4+ Kf4 Bc4 Kg3 Ng2 Kf2 Ne2 Kf1 Ng4 Qc3 Be6 Qdb3 Kd8 Qd1+ Bd7 Bgd5 Be6 Bd3 Rc1 a1Q Rb1 Qaa3 Ra1 Bb1 Bg8
kr1nn2N/PNNPb2R/bP4B1/NR1r4/8/1n1pB1Kb/r2nb2N/5B2 b - - 0 1 illegal: No proof kernel
2q2n2/qq3B2/N1N2b1b/P3p2n/3R1BR1/N1k2Pp1/2P4B/nrNK1N1r b - - 0 1 legal: proof: d4 a5 g4 f5 gxf5 h5 b4 c5 dxc5 axb4 Qd4 b6 Qg4 Bb7 f4 Bf3 exf3 hxg4 h4 Kf7 a4 Kf6 h5 d5 c6 g5 h6 d4 h7 b5 a5 g3 c7 d3 c8N g2 Bd2 b3 Nd6 b2 Ne2 g1B Ra3 b4 Ra1 g4 Ra4 b3 Kd1 Bh6 Nc1 Qc8 Nc4 Nd7 Ne3 Nf8 Rh4 Rb8 Na3 b1N Rd4 b2 Be2 e6 Nf1 g3 Rg4 Rb7 Be3 d2 Bc4 Bf2 Bb3 Be1 Bg1 Rb5 Bh2 Bf2 Rd3 Bc5 Bd5 Be7 Rd4 e5 Bf7 Bd8 Bg1 Ke7 Bh2 Nf6 Rd6 Nh5 Rd4 Rd5 f6+ Kd6 f5 Kc5 Bg6 Rd6 f7 Rb6 f6 Rb7 Bf5 Rb8 Be6 Be7 Bc4 Kb4 Be6+ Kc3 Ba2 Nd7 f8B Rb4 f7 Bf6 Bg7 Rb7 f8N Rb6 Ne6 Nf8 Nc7 Rb8 Bf7 Rb6 Rdf4 Rb7 Ke2 d1Q+ Ke3 Qdd7 Ke2 Rb8 Na6 Qa7 Kd1 Nd2 Ra4 b1Q Rad4 Be7 Bf6 Qbb7 Bg5 Nb3 Be3 Na1 Bf4 Rg8 h8N Bf6 Ng6 Rh8 Rd7 Qba8 Rd5 Rb1 Rd4 Qa8b7 Ne7 Bhg5 Nc7 Ng7 Bg1 Rh1 Nc6 Bh6 Na6 Nh5 Bh2
4q1B1/1RQ2rkP/4nB1r/1PRb1R2/2R4r/1PppN3/qR3n2/R3bbK1 b - - 0 1 legal: proof: c4 c5 a4 e5 f4 h5 fxe5 b5 axb5 h4 Nc3 h3 d4 cxd4 gxh3 dxc3 h4 Bd6 h5 Bf8 Kf2 g5 h4 d5 e4 f5 e6 a5 e5 g4 c5 a4 c6 d4 h6 f4 h7 a3 h5 a2 c7 f3 h6 Qg5 b3 Nc6 e7 Kf7 e8R Qe7 Rh4 Nd8 Ne2 g3+ Kg1 g2 Bg5 Ra7 Bf6 Ne6 Nf4 Bb7 c8R Bd5 Bc4 d3 Qc1 Qd7 Rc5 Be7 Rb8 Qe8 Rb7 Ra6 Qe1 Rd6 Qg3 f2+ Kh2 f1B Kg1 Rd7 Rh5 Bd8 Rf5 Kf8 Qh2 Rf7 Qg3 Ne7 Qh2 Nc8 Qg3 Nd6 Qh2 Nd4 e6 Ne4 Qg3 Nf2 Qh2 Rg8 h8R Bb6 Rh7 Rg4 e7+ Kg8 Qg3 Ne6 Rg7+ Kh8 h7 Rh4 Rg4+ Rg7 Rb1 a1Q Rb2 Qa2 Qh2 Qf8 e8R Bd8 Ree7 Qe8 Ra7 Rh6 Reb7 Bc7 Ne2 Bg3 Nd4 Rh4 Nc2 Rh6 Bd8 Rf7 Ne3 Bh4 Rd4 Kg7 Qc7 Bg3 Ra3 Bh4 Kh2 g1R Bf6+ Kf8 Re4 Rg4 Ref4 Bg3+ Kg1 Rgh4 Ra6 Nd1 Ra4 Be1 Rd4 Nf2 Rdf4 Qb1 Ra1 Qa2 Ng2 Ng7 Ne3 Re7 Qa5 Bdg2 Bg8 Bd5 Rd7 Ne6 Rb7 Rc7 Rfc4 Rf7 Bg5 Kg7 Qc7 Nf4 Bd8 Ne6 Bf6+
1KR1q3/1P1qnN1r/4N1N1/2PQ3b/1R2n2n/PN2p1B1/1kp1qr2/bN3N2 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 Na6 c4 bxc4 d4 Nb8 b4 c5 b5 a6 b6 Nh6 dxc5 Bb7 Bg2 Bc8 Bc6 Ng8 Bb5 axb5 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 h4 g5 f3 d5 a3 c3 b7 c2 h6 g4 h5 d4 f6 g3 h7 g2 h6 d3 f7 Kd4 f4 e5 f5 d2 f6 e4 Rh5 Bg7 f8N Qe8 f7 Nf6 Ne2+ Kd3 Ng3 g1N Ne6 e3 f8N Ne4 Nf1 Nf3 Nd4 Nh4 Nb3 Bg4 Ne6 Be5 Rg5 Bh5 Bb2 Bd4 Qf3 d1Q Rg8 Qe2 Ra2 Bg7 Be5 Ra6 Bc7 Ba1 Bg3 Rc6 Ka5 b4 Kb5 Rc8+ Kb6 Nc6 Qh1 Ne7 Ka7 Qd7 Qf3 Rf8 Rb2 Rf4 Qg2 Rf2 Rc8 Kc4 Kb8 Kd3 Nb1d2 Kc3 Qf3 Nf6 Qd5 Ne4 Nbd4 b3 Rb1 b2 N4b3 Rg8 h8N Rg7 h7 Qe8 Nf7 Qd7 h8N Rh7 Rd1 b1Q Ng6 Kb2 Re1 Qbd1 Nb1 Qdd2 Rc1 Qe8 Rd1 Qd4 Rd3 Qda4 Rd4 Qad7 Rb4
n1b4r/2RNR3/1p4P1/n2PrP2/2N1bBpk/1q1N4/1rNrb1N1/4Q1NK b - - 0 1 illegal: No possible last move
N1N3kB/2NqnPn1/Bp3nrn/2P1N1nR/B7/4R1Pb/p7/r4nNK b - - 0 1 illegal: No possible last move, all moves rejected
2Bn4/2Bb1pb1/1P1R1PPp/4N3/3N2Rr/4BNn1/bB1qpK2/kr3B1r b - - 0 1 legal: proof: e4 c5 a4 g5 h4 gxh4 b4 a5 bxc5 d5 exd5 b6 Qg4 b5 Qb4 axb4 axb5 Bg4 Ra4 Bh3 Ra1 Bc8 g4 Kd7 f4 e5 d4 b3 c4 b2 g5 h3 c6+ Kd6 c7 e4 g6 h2 c5+ Kd7 d6 Ke6 d7 Kd5 b6 e3 f5 e2 c6 Kc4 d5 Kb3 d6 h6 Nd2+ Kc2 Nc4 b1B Nf3 Ne7 Kf2 Ra7 Be3 Kc3 Ra4 Ra8 Nce5 Kb2 Rg4 Ka1 Rhg1 h1R f6 Ba6 c8B Ba2 c7 Bg7 Rd4 Bd3 Rgg4 Nbc6 Rd5 Bb5 Rd2 Qf8 d8B Nf5 d7 Ng3 Rd6 Ra4 Be7 Rb4 d8B Rb1 Rd2 Rh4 Ba3 Qb4 Rd6 Rf8 Bd7 Re8 c8N Qd2 Bc7 Nd8 Na7 Rh1 Bc8 Bd7 Nac6 Re6 Ncd4 Re8 Nd3 Re4 Nde5 Rf4 Rg5 Rfh4 Rg4 Rb4 Bc1 Rb1 Bb2+
q2NR1b1/1R1p2R1/4p2P/6NR/1Rr1kn1b/p1P4R/1rqP1qB1/KbQ5 b - - 0 1 legal: proof: e4 f5 b4 c5 bxc5 g5 f4 gxf4 a4 b5 axb5 f3 g4 h6 g5 f4 g6 Nc6 Bb2 Nd4 Bc3 Ne6 Bf6 Ng7 Bg5 Nf5 exf5 hxg5 h4 a5 c3 a4 b6 g4 h5 g3 c6 g2 f6 Ba6 g7 Kf7 b7 Ke6 b8R Kd5 h6 Ke4 c7 Bc4 f7 Nf6 g8R Nd5 Qc1 f2+ Kd1 f3 Kc2 Nf4 Rb4 Rc8 Kb2 Bg7 f8R Bf6 Rb7 Bh4 Rg7 Bg8 Rh3 e6 Na3 Qe8 Nc2 a3+ Kb1 Rb8 c8R Qd8 Bc4 f1Q Nd4 f2 Rf5 Qd1 Rh5 f1B Ngf3 g1Q Nc6 Qf2 Bb3 Qe8 Nd8 Bd3+ Ka2 Qf8 Rb1 Qc2+ Ka1 Qe8 Rbc7 Rb4 Rb7 Rc4 Ba2 Qf8 R1b4 Qe8 Nc6 Qd8 Ra8 Qa5 Re8 Qa8 Bb3 Qd1 Nd8 Bb1 Qb2 Qc1 Bd1 Qc2 Qc1 Bh7 Be2 Rf8 Bf1 Bg8 Bg2 Rf5 Rb3 Rb5 Rb4 Rb6 Ra4 Rb3 Rab4 Rb2 Ng5+
2bb4/q1kBn1N1/1r2bP1B/p2rBP1r/R6B/2RPpp1r/6BN/1R3K2 b - - 0 1 illegal: No possible last move
2B4B/2B1q3/1R2pp2/PBrk1P1K/2rr4/Bp1r4/1nn1P1Q1/N1nBqR2 b - - 1 2 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 axb4 f5 Be6 Na3 Na6 Nb5 Bc8 Nd4 Nb8 h4 Na6 g4 Ra7 Ne6 Nb8 Nf4 gxf4 g5 Ra8 g6 Nh6 Qa4+ Bd7 Qa6 Ng8 Qe6 Bh6 Qxd7+ Kf8 Qc8 Bg5 hxg5 Ke8 Kf2 b5 Kf3 c5 Kg4 h5+ Kh4 b3 a4 c4 d4 c3 g7 f6 d6 b2 d5 b1R a5 c2 g6 b4 Bb2 c1N Qc6+ Nd7 Bg2 f3 Ba3 f2 Nf3 f1Q Nd2 Rb3 Rb1 Rd3 Nb3 Nh6 g8B Rc8 g7 Ng4 Be6 Ne3 g8B Nc2 Na1 Qc7 Qa8 Ne5 d7+ Kd8 Rb3 Nc4 Rb2 Qd1 Rf1 Rh7 Rb3 Nb2 Bh1 Qa7 Bg2 Kc7 d8B+ Kd6 Bc7+ Kc5 d6 Rg7 d7 Qe1+ Bg3 Kd4 d8B Rc5 Bc6 Qd7 Bb5 Rg4+ Kh3 h4 Bc7 Qd6 Bc8 Re4 Bgc4 e6 Qc6 Rf4 Qg2 Qe7 Ba4 Re4 Bcb5 Kd5 Bf4 Rc4 Kg4 h3 Kh5 h2 Bh6 h1R+ Bh2 Rg1 Bc7 Rc5 Bg7 Rd4 Qf2 Rg3 Qg2 Rgd3 Bh8 Rdc4 Rc3 Nd4 Bd1 Nc2 Rb3 Rcd4 Rc3 b3 Rc4 Na4 Rb4 Nb2 Be8 Rdc4 Rb6 Rcd4 Bb5 Rdc4 Qf2 Red4 Qg2+
B1R5/3Rr3/3prqPN/4pqq1/6NR/k2P2b1/pPBp2K1/B2R1nbR b - - 0 1 illegal: Other
1Bn4n/pBKbRN1Q/P2B4/2B2P2/3B3r/bpp1n3/2pkBP1b/1R5r b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 d4 c3 dxc3 b3 Qd6 b4 Qd8 d4 e5 d5 c5 Na3 c4 Nc2 Qa5 Nd4 Qc5 bxc5 exd4 Ke2 Kd7 Kf3 g5 Ke4 b5 Ke5 b4 h4 c2 a4 d3 c6+ Ke7 d6+ Kf7 d7 c3 d8B g4 c7 g3 h6 g2 h7 d2 a5 b3 h5 Ba6 c8B Bg7+ Kd6 Bd4 h6 Bb5 a6 Ne7 Bb7 Kf6 Bc7 Bd7 Ba3 Ng6 Nh3 g1B Ng5 Nc6 Nf7 Nce7 Qh5 d1N Rb1 Bb6 Rh4 Ne3 Be2 Ba5 Bc5 Bb4 Re4 Ba3 Re5 Rag8 Qh3 Bh2 Bb8 Nc8+ Kc7 Nge7 Bd5 Rg1 Bb7 Ng6 Qh5 Rh1 Qh3 Bg1 Re7 Bh2+ Ne5 Rg8 h8B+ Rg7 h7 Kg5 Bd1 Kf4 Nf7 Rg8 Bhd4 Nh8 Qh4+ Rg4 Qh5 Rh4 Bg4 Bc6 Be5+ Ke4 Bed6+ Kd3 Be2+ Kd2 Qh6 Ng6 h8B Bd7 Bhd4 Nh8 Qh7
R2R3n/1Nqb1nQ1/b2k1NrN/N5p1/PNqr2Pb/b3b3/P1N2B2/1K4b1 b - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 h5 g3 f5 b3 fxe4 Ke2 h4 Ke1 a4 bxa4 h3 Bg2 hxg2 h4 Kd7 f4 g5 d4 c5 Kd2 e5 Kc2 b5 h5 b4 d6 e3 f5 c4 d5 e4 g4 c3 f6 e2 h6 e1B f7 e3 h7 e2 Be3 Bh6 Bf2 Qb6 Nf3 g1B Nd4 Bf8 Na3 b3+ Kb1 b2 Ndc2 Nc6 Nc4 Qc7 Na5 Ne5 Qd4 Ng6 Qg7 Nh6 Rh5 Rg8 h8N Bd2 Rh2 Kd8 d7 Ke7 d8N e1B Ne6 Ba6 Nc5 Kd6 Rh3 Be7 f8N Rd8 Nh7 Be3 Nf6 Nf7 Rh6 Rb8 Rh4 Rb4 Rh7 Rd4 Rh6 Ke5 d6 Bf8 d7 Kd6 d8N Be7 Ndc6 Bf8 N6b4 Be7 Na3 Bf8 Kc2 b1B+ Kb3 Be4 Nac2 Bf5 Rd1 Bd7 Rh3 Be7 Rf3 Bf8 Rf4 Be7 Re4 Bf8 Re8 Be7 Ra8 Bf8 Na3 c2 Rd3 c1Q Nac2 Qd2 Kb2 Qc3+ Kb1 Qc4 Rd2 Nge5 Ng6 Nh8 Nh4 Nef7 Nf5+ Ke5 Qh7 Rg6 Nh6 Kd6 Qg7 Bh2 Bg1 Bh4 Bf2 Bg1 Re2 Bc1 Ree8 Be3 Red8 Qd3 Nbd5 Ke5 Nce4 Ba3 Nc5 Kd6 Nb4 Qc4 Ncb7+
2rr1B2/2nB2rb/pN1bq3/Pn3r1r/4N2P/5R1N/k2NKPRr/1Bq2N2 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Qd3 h4 Qg3 hxg3 h4 Kf7 e4 Ke6 c4 g5 a4 b5 a5 d5 c6 b4 c7 a6 c5 d4 c6 g2 Nc3 g3 Rb1 g4 Nd1 b3 Be3 d3 Rb2 d2+ Ke2 Bd6 Bg5 Qe7 Ke3 Rh5 Ke2 Nf6 Bf4 Ne8 Ne3 d1R Rd2 b2 Rd3 b1Q Rh2 Qc1 Nh3 g1R Bh6 g2 Bf8 g3 Ra3 Bd7 c8B Rh1 c7 g1R Rg2 Nc6 Rc3 Rh2 Rb3 Kf7 e6+ Kf6 Rd3 Ke5 Rc3 Kd4 e5 Qf7 e7 Bf5 e6 Bh7 Bd7 Na7 c8N Nc7 e8N Nab5 e7 Qe6 Nb6 Rc8 Nf6 Rf5 Ra3 Kc5 e8N Kb4 Ne4 Rh5 Ra1 Kb3 N8f6 Rdd5 Rb1+ Ka2 Nd2 Rdf5 Rb4 Rgh1 Rf4 Rg1 Nfe4 Rd8 Kf3 Rc8 Bd3 Rd1 Rg1 g2 Ke2 Qcc4 Rf3 Qc1 Rf1 g1R Bb1+ Ka3 Re1 Rg7 Rg1 Kb2 Bd3 Ka2 Rg2 Rg1 Nef1 Rg8 Bh6 Rge8 Bf8 Red8 Rg8 Rg7 Bc2 Re7 Rg2 Rg7 Bb1+
KB4kr/1B1b2p1/2PnQ3/NBP1r3/1n1b1R2/3BB1r1/1nr2NP1/1nqB1b2 b - - 0 1 illegal: No proof kernel
n1RK4/2pNB1P1/1qkq1r1r/3b1R1n/2PP2B1/2nB1B2/1n1Bq3/1Bb1q1Q1 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 a5 bxa5 Ra7 Qg4 Ra6 Qd1 Ra8 g4 h5 g6 Qd5 g5 Ra7 Nc3 Qd8 Nd5 Ra6 Ne3 Ra8 Ng4 hxg4 Kf2 Kd7 Ke3 b5 Kd4 f5 Kc5 g3 h4 f4 c4 b4 a4 b3 d4 b2 g7 b1N a6 g2 a7 f3 h5 e3 h6 e2 h7 e1Q a5 f2 a6 Bb7 g6 Bd5 Rh5 Nc3 Nf3 g1Q Rf5 Nf6 g8B Bh6 Bd2 e5 Bd3 f1Q Ra2 e4 Be6+ Ke8 Ra5 e3 Ne5 e2 Nd7 Nh5 Ra4 Rf8 h8B Rf6 Bg7 Qg5 Bf8 Qf3 g7 Qg6 Be7 Qfg4 Nf8 Nd7+ Kb4 Qh1 Bg5 e1N Rf4 Bf3 Bc2 Q6f5 Bb1 Rc8 a8B Qgg2 a7 Qe2 Bae4 Nb6 a8B Qhf1 Bad5 Qd6+ Ka5 Bh1 Ka6 Nd3 Kb7 Nb2 Bed3 Be4 Rb4 Na8 Rf2 Qfe5 Bg4 Qc5 Rf4 Qed6 Rf5 Qff2 Qg1 Qfe1 Bh4 Be3 Bg5 Bc1 Bd2 Qcc6+ Ka7 Bh1 Rb8 Qcc5+ Kb7 Rh6 Ng6 Kd7 B5e4 Rf8 Ne5+ Ke6 Bg2 Rff6 Kc8 Qdb6 Kd8 Qcc6 B2h3 Bd5 Bf3 Qcc5 Nd7 Qcc6 Ba3 Qcc5 Bhg4 Kd6 Rc8 Kc6 Bde4 Qd6 Bed3 Qde5 Bf8 Qd6 Be7
4br2/q1R1KRb1/R1Pp1p2/R4P2/B1Nq1nk1/qR5n/PbNr4/B2N1n2 b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 dxc5 e5 b4 axb4 Qd4 exd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 Kd5 g5 h4 b5 f4 d3 e4+ Kg4 c4 f6 f5 d2 c6 d1N e5 b3 c5 b2 c7 b4 e6 b3 h6 Nc6 h5 Nf2 e7 Nb4+ Kd6 Bg7 e8N Ra3 h7 Nh3 c6 Ne7 h6 Ned5 Bb5 Nd3 Nc3 b1Q Nge2 b2 Nd4 Nd3f4 Nd1 Ne3 Ba4 Qd3 Rb1 Rf8 h8R Nf1 h7 Qg3 Bd2 Rd3 Bc3 Rd2 Rg8 Qd3 h8R Qa6 Rh7 Qa7 Rc1 b1Q Ba1 Qbb8 Rc5 Qb4 Rh2 Qb2 Rf2 Qa3 Rf3 Ba6 c8R Bc4 Rb3 Bf7 Ra8 Qdb6 Ke7 d6+ Nc7 Bg6 Ra5 Be8 Nc2 Qd4 Ra6 Bh8 Rf7 Bg7 Re3 Kh5 Rc3 g4 Rb3 g3 Rh8+ Kg4 Rh7 g2 Ra5 Qab6 Nd5 g1B R8a6 Qb8 Nb6 Qa7+ Kd8 Qd3 Rc7 Bd4 Ke7 Bb2 Nc4 Qdd4 Rf3 Bh6 Rf7 Bg7 Rb3
1K2NRbr/2Q3Pb/P1R1N2p/q6k/2N3qP/1n2NqBn/1br1p2r/5N1N b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 f4 g6 f6 Qd6 f7+ Kd8 f5 Kd7 f6 Ra7 Bd3 Ra8 Bf5+ gxf5 Qe2 Kd8 Qf3 Qd7 Qf1 Qe8 Qe2 Kd7 Qd1 Qd8 Kf2 e5 Kf3 c5 h4 b5 a4 e4+ Kf4 e3 Ke5 h6 d4 e2 g4 b3 d6 f4 g5 c4 g6 b2 g7 f3 d5 c3 a5 c2 a6 f2 Nd2 b1Q Nh3 f1R Nf2 Be7 f8N+ Ke8 d7+ Kf7 d6 b4 Ng6 b3 Nf4 b2 Ng2 Kg6 f7 Nf6 f8N+ Kh5 Nh7 Re1 Rf1 Ne4 Ra5 Bg5 Rc5 Qa5 d8N Be6 d7 Bg8 Ne6 Bf6+ Kd5 Ra7 d8N Rc7 Nf7 Nc6 Ne5 Ng5 Kd6 Nh3 Rc3 Qba1 Rc4 b1B Ba3 c1Q Ne3 Qa4 Qc2 Rc8 Kd7 Qd4+ Bd6 Qg4 Bb8 Nd4+ Kd6 Rd8+ Kc7 Qa5+ Kb7 Qd1 Bc7 Rd5 Kb8 Nb3 Rc5 Qc1 Qc4 Rd1 Qf4 Bc2 N5c4 Bb2 Rc6 Rd3 Qd6 Rc3 Qe7 Be4 Bg3 Rc2 Qc7 Qb1 Nh1 Qba1 Rf8 Bd3 Nf2 Rh1 Nd4 Bf5 Ne6 Rh2 Nh1 Qe1 Ndf1 Qf2 Rf7 Qff3 Nf6+ Kg6 Ne8 Kh5 Rf6 Bfh7 Rf8
n2B1Bb1/r1qPb2n/P4pp1/5N1n/kR2N1b1/5P2/Br3qR1/RB1K1B1r b - - 0 1 legal: proof: d4 a5 c4 e5 g4 d5 b4 h5 bxa5 hxg4 cxd5 Qd7 d6 Qe7 d5 Qd8 Qd4 exd4 e4 Kd7 h4 b5 a4 c5 e5 b4 a6 g6 f3 d3 h5 b3 h6 g3 h7 b2 a7 c4 a5 g2 a6 c3 Ra5 d2+ Ke2 c2 Ra2 Nf6 Nc3 b1R Ne4 Be7 Ba3 c1N+ Kd1 Qc7 Ne2 g1Q Nd4 Qf2 Nf5 Rb2 Ra1 Ne2 Rg1 Nf4 Rg2 N4h5 e6+ Kd8 Bb4 Nbd7 Bc5 Nb6 d7 Qf4 Bb4 Kc7 d6+ Kc6 d8B Bd7 Nc3 Qc4 Ne4 Kb5 Ba3 Ka4 Bc5+ Kb3 Bb4 Qc7 Ba3 Rg8 h8R Nh7 Bc5 f6 Bb4 Rc8 a8B Rg7 Ba3 Ka4 Bb7 Bf8 e7 Na8 e8B Be7 Bf7 Rb8 Bc8 R8b7 Re8 Ra7 Ba2 Rg8 Bb7 Rh8 Bbd5 Be6 d7 Bg8 Bb1 Be6 Nh4 Bg4 Bda2 Qfb6 Ke2 d1B+ Ke1 Qd4 Nf5 Bb3 Rg8 Be6 Bc5 Qg1 Kd1 Qf2 Re8 Bg8 Bb4 Bf8 Re6 Be7 Rb6 Nf8 Bd6 Nh7 Rb4+ Ka3 Bbd3 Nf8 Rb3+ Ka4 Rb6 Ng7 Bh2 Bc5 Bg3 Rh1 Bdb1 Nh7 Bd6 Nh5 Bf8 Be7 Rb4+
3n4/1Bpr4/1N1pRRP1/1k2qR1R/3BN2q/b5qr/nB1P3P/1K1R1bbn b - - 0 1 illegal: No proof kernel
kb2Q1B1/P1Bp1P1R/B2r1B2/4Kb1R/qB1P1r1n/2r5/rr1N1np1/b6B b - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 h5 exf5 c6 g4 hxg4 Nc3 c5 Nd5 Nf6 Nb4 cxb4 Qe2 Ng8 Qf3 Nh6 Qd1 Ng8 Ke2 b5 Ke3 e5 Ke4 g5 d4 g3 h4 g4 c4 g2 a4 g3 f4 b3 c5 b4 h5 b2 c6 b1R c7 b3 h6 b2 a6 Bb7+ Ke3 e4 c8B Nf6 h7 Qa5 a7 Kd8 Rh3 Kc7 Ra2 Nc6 Qg4 Bd6 Bc4 Rf8 h8B Ne7 Qh5 Ng6 Nf3 g1R Nd2 Nh4 Qe8 Rh1 Bg8 Ng4+ Ke2 e3 Kd3 e2 f6 e1B f7 Be5 f5 Nf2+ Ke3 Kc6 f6 Bb8 Ra3 Kc7 Kf4 Be4 Ba6 Bf5 Bg7 Qb5 a5 Qa4 Ke5 Ra1 Rb3 b1R Rb5 Ra2 Ba3 Rf1 Bb4 Rbb2 Bd6+ Kc6 Bc7 Ra3 Rh1 Rc3 Rd5 Ng2 Rh7 Nh4 Qe7 Rc8 f8B Re8 f7 Rc8 Bd3 Kb7 Qe8 Rc6 Bf6 Rd6 Nb1 Bc3 Nd2 Rdb6 Bb4 Ra6 Be4 Rd6 Bh1 g2 Kf4 Be6 Rdh5 Bf5 Ke5 Rbb1 Bb6 Ba1 Bbd8 Rc3 Bc7 Rb2 a6+ Kc6 Bb6 Nh3 Bbd8 Rf4 Bc7 Nf2 Ba3 Ra2 Bc5 Nh3 Ba5 Bc7 Bcb6 Rb8 a8B+ Rb7 a7 Bb8 Bc7 Nf2 Bg7 Kb5 Bh8 Ka6 Bf6 Rbb3 Be4 Rbb2 Bd3+ Kb7 Ba6+ Ka8 Bb4
1r1r1rb1/1pP2p1B/3Br2B/r1n1P2k/2QKN2B/2R4n/1P1bR2q/3BnB2 b - - 0 1 illegal: No proof kernel
4N2K/N2pb2P/1qBN1rpB/8/b1nP1Nr1/4nQ2/1P1rR1bN/1k3nrN b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 c4 g4 hxg4 Ra3 Bb7 Rf3 Bc8 Rd3 cxd3 Kd2 Kf7 Ke3 Kf6 Kf4 a5 c4 d2 h4 g3 h5 e6 h6 a4 b6 a3 b7 g6 c5 g2 h7 a2 c6 a1R c7 R1a3 Bb5 Rd3 Ne2 g1R Rh2 Ra6 Bc6 Nh6 Ng3 Ng4 Nh1 Be7 Qf3 d1B Nd2 Re8 Nf1 e5+ Ke4 Rf8 Bh6 Rd2 Rg2 Ba4 Nh2 Rb6 Kd5 Ne3+ Ke4 Na6 b8N Bb7 c8N Nf1 Kd5 e4 Nd6 e3 Ke4 e2 Kd5 Re8 Ke4 Bf8+ Kf4 Ke7 f6+ Ke6 f7 Be7 f8N+ Kf6 Ne6 e1N Ng7 Nc5 Bb5 Rf8 Nc6 Nc2 Na7 Nb3 Bc6 Na5 Nge8+ Ke6+ Kg4 Rf6 Kg5 Rb3 Qh5 Rh3 f4 Rh4 Qd1 Nce3 Qf3 Ng3 Re2 Nc4 Bf8 Rg4+ Kh6 Nf1 Kg7 Qc7 Kh8 Qb6 Bh6 Ba8 Bb5 Be4 f5+ Kd5 Qh3 Re6 f6 Bg2 f7 Rf6 f8N Bd1 Nf5 Ke4 Ne6 Kd3 Bc6 Kc2 Nfd6 Kb1 Nf4 Ba4 Qf3
2Q1B1N1/2rp1P1n/1NnK2b1/2N2Rbn/1r2N2N/1RnPN2p/rPq5/1b1k4 b - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 d3 f5 exf5 b5 axb5 c4 Ke2 c3 Bd2 cxd2 Ke3 Kf7 Kf4 Kf6 c4 e5+ Ke4 Kg5 Kd5 Kf4 g4 a5 f3 Ke3 b6 h5 b7 e4 c5 a4 c6 h3 c7 h2 g5 a3 f6 h4 f4 a2 g6 h3 f7 Ra4 f5 Bh6 f8N Nc6 b8N Nf6+ Kc5 Nh7 g7 Rb4 g8N Bb7 c8N Qc7 f6 Bg5 Qc2 d1N Ne2 Nc3 Ng3 Ba6 Na3 Bc4 Rg1 h1B Nb6 Bf3 Rc1 a1R Ng6 Ba2 Na6 Bb1 Be2 Ra2 Rgf1 Bh5 Nh4 Bg6 Bh5 Qc8 Rf5 Qc7 Qa4 Kd2 Nc2 e3 Qb5 e2 Qc4 e1N Ne3 Qc8 Kd6 Ng2 Nc5 Nf4 Qa6 Be8 Bf7 Nh5 Nge4+ Ke2 Bc4 Bg6 Bf7 Qa8 Qc8 Qa4 Be8 Qb3 Rcf1 Qc2 R1f4 Ke1 Na6 Ke2 Rb5 Ke1 Rff5 Ke2 Nac5 Ke1 Nf1 Kd1 Ne3+ Ke2 Ne7 Ra8 Bf7 Rc4 Qe8 Ra2 Rb3 Rb4 Qa8 Rf8 Ng8 Rc8 Be8 Rc7 f7 Ke1 Qc8 Ke2 Ned5 Kd1 Ne3+
3N4/1b2BKp1/Qr1P3b/PB1kqp1n/q1B1r1b1/r5PB/RN5B/2B2n1r b - - 0 1 illegal: No proof kernel
1r3N2/N5pN/3b1Nn1/1R2qrNB/PP1k1Qq1/Bp1bn3/N2r2PK/4r2b b - - 0 1 illegal: No proof kernel
BbNNq3/1KbN2p1/2PBP1n1/4r2b/b1Rq1B2/N4p1R/1n2q1P1/k2Nr3 b - - 0 1 illegal: No proof kernel
bR6/R2K3P/RPp1p1rr/1Bb1k2N/2p2Rq1/1BPn4/1n4R1/bNB1r2n b - - 0 1 illegal: No proof kernel
8/BrNbBpr1/p1n2n1r/B6B/Pb2nq1k/2NpBPP1/3RR2b/N4K2 b - - 0 2 legal: proof: e4 d5 d4 g5 h4 b6 hxg5 b5 c4 bxc4 Qd3 cxd3 exd5 Bd7 Nd2 Bg4 Nb1 Bc8 a4 h5 b4 c5 g6 e5 g7 Ke7 b5 Kf6 b6 h4 b7 c4 d6 a6 d7 h3 d5 h2 d6 c3 Nf3 c2 Ra2 e4 Nc3 e3 Be2 Nc6 b8B Qe7 d8B Bd7 Nd2 Kg5 Ba7 Nf6 g8N Rh6 Nb3 Kh4 Ba5 Qe4 Ne7 Qf4 Bh5 e2 Bce3 c1B f3 Rb8 Rd2 Rb7 Rg1 h1N Na1 Ng3 Ned5 Nge4 Nc7 Ba3 Rf1 Bb4 Rf2 Rg6 Bb8 Rg7 Bba7 Be6 d7 Bfd6 d8B Bd7 Nb1 Qf5 Be7 Bh2 Nc3 Qf4 Rf1 Nd6 Kf2 e1R Rh1 Rb1 Re1 Ne4+ Kf1 Rb2 Ree2 Rc2 Nd1 Rc5 Nc3 Rcg5 Re1 R5g6 Ree2 Rh6 g3+
4n3/2b5/2BP1n1p/p2B1K1P/1qr2p1q/RBN4B/BPrbQBN1/1bk2n2 b - - 0 1 illegal: No proof kernel
2q3R1/n1b1b2N/r2n3P/qQ1bN3/1p1NPK1N/NPNk1B1p/1n3p1B/4r3 b - - 0 1 illegal: No proof kernel
6rB/Bp1r4/1Kb1pbB1/2NrqnB1/b1P1P3/3QpR1n/4P2b/4kBNB b - - 1 2 illegal: No proof kernel
3rN1Bn/bN5p/2R3n1/1Pp1b2N/n1qn2RN/N1Ppk2B/B2P1r2/3bK3 b - - 0 2 illegal: Other
r2N1b2/3R1bpN/P2p1NnB/3nqbK1/1QN1Nr2/b4p1R/3P1r1P/4kN2 b - - 0 1 legal: proof: f4 a5 b4 h5 bxa5 e5 fxe5 c6 g4 hxg4 Bg2 Na6 Bd5 Nb8 Bc4 Bd6 Ba6 Bf8 Bb5 cxb5 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 e4+ Kd4 c4 Kd3 a4 f5 e6 g3 c5 b4 c6 b5 e5 g2 c7 b3 e7 d6 e8N b4 e6 b2 a6 b3 a5 Nc6 a7 Bb7 c8N Nh6 a6 Rh7 e7 Qd7 Ra3 Nd8 Qg4 Ndf7 Nf6 Qe6 e8N Ne5 Nb6 Bd5 Kg5 f4 Nc3 b1B Nce4 Nf5 Bb2 Ne3 Nc4 Rh4 Bd4 Ng6 Ne2 g1B Nh7 Qe7+ N8f6 Bf7 Bc5 Nd5 N2g3 Qe6 Bb6 Bc5 Re1 Kc2 Nf1 b2 Rae3 Ba3 Rh3 f3 Be3 Kd3 Rc1 Ke2 Rc2 Ke1 Bf4 Rc8 a8N Qe8 Nc7 Ra8 Rc3 Bc2 Be3 b1R Ne6 Rc1 Nd8 Qe5+ Qf5 Bd3 Rb3 Rf4 Rb7 Qc3 Qg4 Rd1 Nf2 Bf5 Rd7 Qe5 N2e4 Ke2 Rb7 Re1 Qh4 Kd1 Ra7 Re2 Rd7 Rf2 Kh5 Rg4 Bh6 Rf4 Kg5 Ke2 Qg4 Ke1 Qg1 Re2 Qc5 Rf2 Qb4
7B/1nRBp1pR/1B1Qb1kb/2P2n1r/b1rp1B1P/3r4/Kbq1P3/BB4N1 b - - 0 1 illegal: No proof kernel forced: wxDB
N4rr1/p2R4/R1QK1nB1/qNp1rpk1/3P4/r1N2P2/NnP2rN1/2b2N1n b - - 0 1 legal: proof: g4 d5 a4 b5 axb5 h6 e4 dxe4 b3 Be6 g5 Nf6 g6 Ng8 Bb2 Kd7 Bf6 Bc4 Bh4 f6 Bg5 Bf7 gxf7 hxg5 Ke2 Ke6 Ke3 Kf5 d4 c5 h4 e5 b6 g4 b4 g5 b5 g3 h5 g2 b7 g4 b6 g3 h6 Rh7 Nf3 g1R Ra6 g2 Bd3 Qc8 Nh2 Ne7 Nc3 Rf1 Qf3+ Kg5 Rg1 Nd7 b8N Rh8 b7 Qc7 h7 Rg8 h8N Qa5 Ng6 Bh6 Nc6 Raf8 b8N Ra1 Nh4 Ra3 Rf1 g1R Nb4 Rg2 Nba2 Nf5+ Kd2 Rd8 f8N Ng3 Ke3 Nh1 Rb1 Re8 Rb7 Rc8 Nf1 f5 Bb5 Rh2 Ng2 Nf6 Nfd7 Rce8 Nb6 Ref8 Ne1 Rg2 Be8 Rh2 Bg6 Rg2 Kd2 e3+ Kd3 e4+ Kc4 e2 Rd7 e3 Na8 Rh2 Ng2 e1R Qc6 e2 Nf4 Rg2 f3 Rf2 Ng2 Rb1 Rb6 e1N Na6 Nd3 N6c7 Re1 N7b5 Re5 Ne1 Kh4 Ra6 Bc1 Ng2+ Kg5 Qb7 Ne4 Qd5 Re6 Qb7 Nb2+ Kd5 Re5+ Kc6 Nf6 Kd6 Rd2 Qe4 Rf2 Qc6
2kb1r1B/4p2p/KRp1Pp2/n5N1/2P3R1/1P1q1NnN/4NB1q/1N1rrR1b b - - 0 2 illegal: No proof kernel
4rk1R/2pQ2n1/4p1p1/1R1b1RN1/2n1Rb2/qPP2RP1/R2N1pKb/B1b4r b - - 0 2 illegal: No possible last move
nN2B3/1p1rnbN1/4pk2/1N5B/qPppRN1B/rn1P1Rp1/PK6/3N3r b - - 0 1 illegal: No possible last move
k1nKN1b1/5B1R/pp3pqq/1rR5/PR5R/1q1ppNR1/qP2P3/4b1BN b - - 0 1 legal: proof: f4 c5 g4 e5 d4 cxd4 Bd2 b6 Na3 e4 Nb1 a6 Bc1 Ra7 Bg2 Rc7 Bh3 Rc5 Bf1 Re5 fxe5 Bb4+ Qd2 Be7 Qd1 Bf8 g5 h5 g6 f6 Nh3 Nc6 Ng1 Ke7 Qd3 Nb4 Qh3 Nc6 Qg4 hxg4 Bh6 Qe8 Be3 Nd8 Bc1 Nf7 gxf7 Qd8 Kd2 g5 h4 d5 c4 Kd7 c5 Kc7 h5 Kb7 e6 d3 Ke3 g3 Kd4 d2 h6 d1Q+ Nd2 g4 h7 g2 c6+ Ka8 e7 g3 e8N Qd7 c7 Qe6 Rh4 Ba3 f8R Qf7 Nf3 Be6 c8R+ Ka7 Rc5 Ne7 Rg8 Bb4 a4 Qg7 Ra3 Nc8 Rb3 Qh6 Rg5 Rg8 h8R Ka8 Rh7 Rh8 Rgg4 g1Q+ Re3 Qc2 Bh3 g2 Nf1 Bg8 Ng3 Be1 Nh1 Qb3 Rf4 Qf1 Be6 g1Q Bf7 Qgg6 Rec3 Qa2 Be3 Qh3 Bg1 Qe6 Rfg4 e3 Rg3 Qd7 Rc1 Qb5 R1c4 Qbb3 Rb4 Qhg5 Rg7 Rh5 Rh7 Q5h6 Rhg4 Rf5 Rh4 Bc3+ Kd3 d4 Ke4 Rg5+ Kf4 Qgg7 Ke4 d3 Kf4 Be1 Ke4 Rg4+ Kf5 Rc4 Ke6 Qgg6 Kd7 Rc3 Re5 Rc5 Kd8 Rb5 Rc5
1n6/Rn2R3/pK1bpkp1/1p1R1bNn/3nP3/4rRQ1/PR2n1PB/1NrR2q1 b - - 0 1 illegal: No proof kernel
2b3KN/1p1Br1nn/k3P1Bb/P2qP3/5N2/7B/nR1NR2p/1RB2bb1 b - - 0 1 legal: proof: f4 a5 b4 c5 a4 d5 h4 e5 fxe5 g5 hxg5 c4 d4 Ra6 Qd3 Rc6 Qa3 Rc5 dxc5 axb4 c3 d4 cxd4 bxa3 d5 Be7 Bf4 Bd6 Bc1 Bf8 Kd2 Kd7 Kc3 Kc7 Kd4 h5 e4 f5 g4 f4 e6 h4 Ke5 c3 d6+ Kc6 a5 a2 d7 c2 g6 f3 g7 f2 g5 h3 g6 h2 Nh3 Nh6 g8B Qe8 Kf6 Rh7 d8N+ Kc7 g7 Nc6 e5 Nf5 Nf4 Nb8 c6 Qd7 Nf7 Qd5 Nh8 Nd7+ Kf7 Kb8 c7+ Ka7 Nd2 Nf6 Rb1 a1B Bh3 Bd4 Re1 f1B Re2 Ka6 Rb2 Bg1 Rb1 Rh4 Bh7 Rg4 g8R Bh6 Rg5 Ng7 Bg6 Nh7 Kg8 Rh4 Rgg2 Rg4 Bb2 c1N Ba3 Na2 Bc1 Rg5 Rgf2 Rf5 Rg2 Rf7 Rgf2 Bd7 c8B Re7 Rg2 Ba4 Bd7 Bc6 Bde8 Bd7 Rgf2 Bc8 Bd7 Qc5 Rf3 Qd4 Rfb3 Qd5 R3b2
1K3N2/5NB1/2R2q1q/Bk1BP3/rN1pnPPp/bb3q2/R1p5/4b1RB b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 h4 gxh4 c4 Bg7 a4 Ne7 axb5 Bb7 b6 Bf8 b5 Bc8 b7 Ng8 e4 f5 e6 a5 b6 a4 e5 Ra5 Qg4 Rc5 Qe4 Rb5 cxb5 Na6 bxa6 fxe4 Kd2 h5 Kc3 d5 Kd4 e3 b8B c6 g4 e2 a7 e1B a8B a3 e7 Kd7 Kc5 h3 b7 h4 Ra2 h2 Nh3 d4 Bc4 Nh6 Bc7 Nf7 Kb6 c5 Ka7 Kc6 e8R Qf6 Ba5 Nd6 Rg1 h1Q Nc3 Be6 Ng5 Qhf3 Kb8 Ne4 Nd5 Rh6 Bb3 c4 Nb4+ Kb5 Nf7 c3 Bd5 c2 Rc8 Rh7 Rc6 Rh8 Ra1 a2 Bh6 Rh7 Bg7 Rh8 Rb1 a1Q Rb2 Qc1 Ra2 Qd2 Rg2 Qdh6 Rg1 Qd1 f4 Qf3 Kc7 Rh7 b8N Bc5 Nd7 Be7 Na6 Ba3 Nb4 Rh8 Bb7 Ra8 Nf8 Ra7 Kb8 Ra6 Bb6 Ra4 Ba5 Ng5 Be4 Bb3 Ba8 Qe2 Bh1 Ne4 Rc4 Qg2 Bd5 Qf3 Rc6
bbb2q2/2b3BN/2R3B1/1P1qN2r/rr1k4/8/PRBP2b1/Kn1rB1NR b - - 0 1 legal: proof: e4 d5 h4 b5 b4 a5 Qe2 g5 Qc4 f5 exf5 gxh4 bxa5 Nc6 Qc5 b4 c4 Na7 Qd4 Nb5 cxb5 Qd7 Qg4 Qd8 Qc4 dxc4 Kd1 Kd7 Kc2 Kd6 Kb2 Kd5 g4 c5 f4 e5 a6 h5 f6 h3 f5 c3+ Kb3 e4 g5 e3 g6 c4+ Kc2 h2 a7 e2 f7 e1B f6 h4 g7 b3+ Kd1 h3 Bd3 c2+ Ke2 c3 Be4+ Kd4 Bb2 c1Q Bc2 Bd6 f8N Bc7 f7 Ne7 g8B Beg3 Na3 Nd5 Nc4 Rh5 Ba3 b2 Bgh7 b1R Ne5 Rb4 Rb1 Bf4 Bcg6 c2 Rb3 Qa1 Rb2 c1R Bc2 Qd6 Bhg6 Rd1 Nh7 Qc6 f8B Nc3+ Kf2 Qe8 Bg7 Qf8 Kf3 Nb1 Ke2 Rc4 Be7 Rb4 Bh4 Bb8 Rb3 Qc3 Bg3 Qcc5 Rb2 Qd5 Be1 Bc7 Bgd3 Rb8 a8R Bg3 Ra7 Ra8 Rb7 Raa4 Bg6 Bb8 Rb6 Bf4 Ng4+ Bfe5 Rf6 Bec7 Ne5 Kc5 Rb3 Qdf7 Kd3 Kd5 Rc6 Qe6 Ne2 Qef7 Rf1 h1B Re6 h2 Rc6 Bg2 Rh1 Na3 Kc3 Nb1+ Kb2 Q7g8 Ng1 Kd4 Rc3 Ba8 Ka1 Qd5 Rb2 Qdd8 Nh3 Qd5 Rg1 h1B Rc6 Be4 Rh1 Bg2 Ng1
1B2N2N/bk3P2/3PP1B1/r1b1bNb1/rr3R2/4R1r1/bn4nR/K1B2R1r b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 Kf2 f5 Qb3 h5 Qa4 Qd7 Ke1 Qe6 Qe4 f4 Qf5 Qg6 Qg5 Qf5 gxf5 Kd7 Qh4 Ke8 Qg4 hxg4 Kd1 Kd8 Kc2 g5 e4 c5 b4 Kc7 Kb2 a5 h4 g3 d4 a4 d6+ Kb7 b6 g2 f6 c4 d7 a3+ Ka2 g4 d8R g3 f7 c3 d5 c2 b5 f2 e5 f3 h5 Bc5 d6 Ne7 h6 Ra4 h7 Nf5 Rf8 Nd7 Bd3 f1R Bb2 c1B Rd8 f2 Nd2 Nh4 Ne2 g1B Ne4 g2 Rh2 Bg5 N2g3 Rb1 Bc1 f1R Re8 Rbb4 Nf6 Rf5 Bc2 Rg8 h8N Bgd4 Re6 g1B Ne8 Ng2 Rf6 Rf1 Rf4 Bge3 Bf5 Rh1 Bg6 Bb2 Nf5 Rg7 Kb1 a2+ Kc2 Bbd4 e6 Ne5 Rb1 a1R Rb3 Bg1 Re3 Nc4 Rf1 R1a3 Rf4 Nb2 Kb1 Be5 Rf1 Kb8 b7 Ra5 Rf4 R3a4 Rf1 Ka7 b8B+ Kb7 b6 Bd7 Rf4 Bb5 Rf1 Bc4 Rf4 Ka6 b7 Ba2+ Ka1 Ba7 Bc7 Rg8 b8R Bf2 Rc8 Kb7 Bb8 Rg7 Rcc3 Bg1 Re1 Bgc5 Rch3 Rh7 Ra3 Rh3 Rae3 Rg3 Ref1
4K1RR/3P4/kqb2q1P/1N2P2n/2BN3n/rpR5/bBN3Bn/B2n2rn b - - 0 1 legal: proof: f4 e5 c4 a5 b4 axb4 g3 f5 Qc2 d5 cxd5 h5 Qe4 Bc5 Qf3 Be3 Qg4 hxg4 fxe5 f4 Bb2 f3 Bc1 Bf4 gxf4 Qd6 Nc3 Qe7 Nb1 Qd8 Kf2 Kd7 Ke3 g5 Ke4 b5 Kf5 c5 Kg6 Kc7 Kf7 Kb7 h4 f2 a4 c4 d4 g3 e4 g4 f5 g2 h5 b3 f6 c3 d6 b4 a5 g3 e6 b2 e7 c2 e8N b3 d5 Ne7 d7 Rg8 h6 Ng6 d6 Nh4 Bc4 f1N Nc7 Nh2 Na3 b1B Ne2 g1N Bb2 c1N Nc2 g2 Ned4 Nd3 Ncb5 Ne2 Rg1 Ba2 Rac1 Nc3 a6+ Kb6 a7 Nf2 e5 Ka6 Ba1 Qb6 d8R Ncd1 Rf8 Bb7 Ke8 Nh1 f7 Rg7 Rh8 Bc6+ Ke7 Rg3 f8B Nd7 Kf7 Nf6 d7 Qd8 Ba3 Nh5 B3b2 Qg5 Ne1 Qd8 Rc3 Rg5 Nec2 Qb6 Re1 g1Q Re2 Rg4 Rg2 Qf1+ Ke7 Re4 Rgg8 Rg4 Be6 Rg1 Bc4 Rc8 a8B Rc7 Ke8 Qf6 Be6 Ra7 Nba3 Bb5 Bg2 Bc6 Nab5 Kb7 Ne2 Ra3 Bc4 Ka6 Ned4
qN4B1/1k3BBP/2r2R1K/2P1N2R/P1q1p2R/rb1b4/Bq2rN2/n3r1n1 b - - 0 1 legal: proof: d4 a5 g4 d5 f4 h5 b4 axb4 f5 c5 e3 g6 g5 Bg7 fxg6 Be5 Qg4 hxg4 dxc5 d4 Kd1 d3 Ke1 Bd4 exd4 Qa5 Nc3 Qb6 Nb1 Qd8 Kf2 Kd7 Ke3 Kc7 Kf4 b5 c4 e5+ Ke3 f5 h4 g3 h5 b3 g7 g2 a3 e4 Kf4 b2 c6 d2 g6 d1B d5 b4 c5 b3 h6 Ne7 Kg5 f4 g8R f3 g7 f2 h7 Ba6 Nc3 b1R Kh6 b2 Nf3 g1R Rf8 Ng6 g8B Rg2 Ne5 Nh4 Rf6 Bb3 Bc4 f1Q Nd1 Nf3 Nf2 Ng1 d6+ Kc8 c7 Nc6 d7+ Kb7 Bgf7 Nb4 Rh5 Nc2 Be3 Rf8 Bd4 Re1 a4 b1Q Bg8 Rc8 Bcf7 Qb2 Ra3 Qc4 Bc3 Qe8 d8N+ Ka8 Bd4 Na1 Ndc6 Kb7 Nb8 Qc6 Ra2 Rg3 Ra3 Rfd8 Bc3 Rd2 Bd4 Rde2 Bc3 Rd8 Rh4 Rd6 c8B+ Ka7 Bf5 Qa8 B5e6 Rc6 Bd4 Kb7 Rh5 Bd1 Raf3 Rh3 R3f4 Ra3 Rfh4 Bb3 Bc3 Qd4 Bd5 Bd3 Bc4 Bbc2 Ba2 Bb3 Ba5 Qc4 Bd8 Bbc2 Be7 Bd1 Bf8 Bb3 Bg7
1NRKn1R1/Bb1N4/PP1P3b/n7/k2R1pp1/1rB3b1/B1nn2n1/1N1q1N2 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 b4 a5 Qb3 b5 bxa5 b4 Qc3 Ra6 Qd4 Rb6 Qd3 Rb5 cxb5 Nf6 Qc3 Ng8 Qc4 dxc4 Kf2 Kd7 Kf3 c5 Ke4 f5+ Ke5 g5 a4 f3 h4 g4 d4 f4 e4 c3 a6 b3 h6 c2 a7 b2 a8N f2 h5 c4 d5 c3 h7 Ba3 h6 Qb6 d6 Qb7 a5 Qa7 a6 Bb7 Ne2 Bc5 Be3 c1B Ra4 c2 Ng3 Nf6 Bc4 f1N Ba2 Ne8 Rd4 Nd2 Nf1 Nc6+ Kf5 Bb4 e5 Na5 Rh4 Rg8 h8B Qc5 h7 Qd5 Bg1 Qf3 Rh3 Qd1 Rc3 Rg7 Rc8 Rg8 Na3 b1N Bf6 Bc5 h8R Bb2 Bf2 Rg7 Rg8 c1N Be3 Re7 Kg6 Re6 Kf7 Nd3 Kf8 Ne1 Bg1 Nc3 Nb1 Nd5 Bg7 Rh6 Bf6 Rh3 Nb6+ Ke6 Bf2 Nc2 Nd7 Rb3 Nb8 Nde3 Bh8 Ng2 Bg7 Kf5 Ke7 Bb4 Kd8 Ke6 Rd5 B4c3 Ba7 Bd4 b6 Bf2 Rd4 Bg3 Ra4 Kd5 e6 Bf6+ e7 Bg5 Bc3 Bh6 Re4 Bc6 Rd4+ Kc5 Rc7 Kb5 Rc8 Nc7 e8N Bb7 Nf6 Ne8 Rd5+ Ka4 Nfd7 Qc1 Rd3 Qd1 Rd4+
r2N1Bb1/1P2R3/B1K5/3p1P2/r2R1r2/k1np2p1/R2PqNr1/rBN1Nb2 b - - 0 1 legal: proof: e4 c5 h4 g5 g4 b5 a4 f5 axb5 Nc6 f4 Nd4 Qe2 Bh6 Qf2 fxe4 Qe3 Nf5 gxf5 g4 Qd4 Bg5 hxg5 cxd4 Ke2 e5 c4 Ke7 b4 Kd6 f6 h5 f7 a5 f8R a4 f5 a3 c5+ Kd5 g6 Kc4 c6 Kb3 b6 d5 c7 h4 b7 h3 b8N a2 b5 g3 b6 h2 g7 e3 Kd3 e2 Na3 e1R Nc6 Re4 Re8 Ra6 Ne2 Nf6 g8N Ra4 Nc2 Qe7 Ba3 Rf4 Nh6 Ne4 Ne1 Be6 c8B Bg8 Ba6 Nc3 b7 Qe6 Bg2 Qe7 Rf1 h1B Be4 Bg2 Ng4 Qe6 Rf3 Bf1 Re7 Rh2 Bc5 Rg2 Nd8 Kb2 Nf2 Kb3 Rd1 a1R Re3 R1a3 Ra1 Kb2 Ra2+ Kb3 Bb5 Ra8 Ba6 Ra4 Rh7 Qe8 Bf8 Qh5 Re7 Kb4 Kc2 Qe8 Bed3 e4 Nc1 Qb5 Rf3 e3 Kb2 e2 Bb1 d3 Rfe3 Qe8 R3e4+ Ka5 Kb3 Qh5 Nc2 e1R Rd4 Qf3 Ne2 Rc1 Ne1 Qe3 Bc2 Ra1 Bb1 Qe6 Nc1 Qe2 Rc4 Nb5 Rb4 Nd6 Kc3 Ne4+ Kd4 Nc3+ Kc5 Qe5 Kc6 Qe3 Rbe4 Qe2 Bc4 Kb4 Rd4 Qf3 Rc2 Ka3 Ba6 Qe2 Ra2+
kbB1b2n/1Brp4/3pnRN1/4B3/2p1RP1K/1q1q1Pp1/R2PN3/r1NN4 b - - 0 1 legal: proof: c4 f5 a4 b5 axb5 f4 b4 f3 gxf3 Nf6 f4 Ba6 b6 Bb7 b5 Bc8 b7 Ng8 c5 h6 Ra6 h5 Rd6 exd6 Qb3 Qf6 Qg3 Qd4 Qg4 hxg4 Bh3 Qa4 Bg2 Qa5 Bf1 Qb6 cxb6 Rh4 Na3 Rh5 Nb1 Rh8 h4 Kd8 e4 a5 e5 c5 h5 g5 f3 g3 h6 a4 h7 g4 e6 g2 Kf2 a3 Kg3 a2 e7+ Ke8 Ne2 g1Q+ Kh4 a1Q Nbc3 g3 Nd1 Qf2 Bb2 Bg7 Be5 Qc3 Nc1 Na6 b8N Qb3 b7 Nc7 b6 Nh6 Ba6 c4 Re1 Qfe3 Nc6 Ne6 b8R Nf7 b7 Qed3 Re4 Rg8 Nd4 Nh8 Nde2 Rf8 Bb5 Ra1 Ra8 Rf5 b8R Rf8 Bc3 Bd4 Ba6 Ba7 Be5 Rg8 Rb5 Bb8 Ra5 Bb7 Ra2 Bd5 Bc8 Kf7 e8B+ Ke7 Bg6 Kd8 Bf5 Kc7 Ba6 Nf7 h8N Rc8 Bh7 Kb6 Ng6 Nh8 Bg8 Rc7 Bf7 Ba7 Rf8 Bb8 Bg8 Ka7 Rf6 Nc5 Bh7 Bf7 Bg8 Be8 Bd5 Ne6 Bdb7 Qbc2 Bc8 Ka8 Kg4 Qb2 Kh4 Qbb3 Bab7#
5Bb1/1N1KP2p/4RbN1/1rRPN2q/2br2n1/3bB1qr/1k5P/rR1n1BN1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 exf4 Qc2 d5 Qf5 f3 Qf4 gxf4 cxd5 Be6 Na3 Bg4 Nb1 Bc8 Kf2 Kd7 e4 Kd6 b4 Ke5 g4 Kd4 g5 a5 g6 c5 b6 f5 b7 a4 d6 c4 d7 a3 d3 c3 b5 a2 e5 c2 g7 Be7 b6 Nh6 g8R Ra4 e6 Qc7 d8N Na6 b8B Nb4 b7 Ng4+ Ke1 f2+ Kd2 f3 Nh3 f4 Na3 Nd5 Nc4 Nc3 Rg7 Bf6 Rg6 Nd1 Ng1 Rb4 e7 Rb5 Ne5 Be6 Ba7+ Qc5 b8N Bg8 Rb1 a1R Nbd7 Ra3 Rh6 Rc3 Bb2 c1R Ra1 Rb1 Ra5 Ra1 Bc1 Rcb3 Nb7 Rba3 Ng6 Rab3 Be2 f1B Nde5 f2 Bb6 f3 Bb2+ Kd5 d4 Ke4 Bc4 Bd3 Ba7 f1Q d5 f2 Bc1 Qa3 Be3 Qh3 Bb2 R5b4 Rc5 f1B Bb5 Qh5 Bc3 Bb1 Be2 Bd3 Bb2 Bh3 Bf1 Rd4 Bc1 Bc4+ Kc2 Rb6 Bed2 Nb2 Ne2 Bg7 Nh4 Qe3 Na5 Rb3 Bg2+ Qf3 Re6 Rbd3 Bh6 Bf7 Nhg6 Bf6 Rf1 Rc8 Ng1 Rb8 Bf8 Bg8 Rd1 Rb4 Nb7 Rdb3 Bf4 Rba3 Rc1 Nd1 Bh1 Bhf1 Bg2 Bfe2 Bf1 Qf2 Bg5 Rh3 Bd2 Qg3 Be3 Nb2 Kc3 Rb5 Rc8 Rba5 Kb4 Nd1 Nf7+ Kd3 Rc7 R5a4+ Kc5 Rb4 Kc6 Rbb1 Kd7 Rb5 Bf2 Kd2 Nfe5 Bed3 Rcc6 Ra2 Rc5 Ra1 Rb1 Kc3 Rc1+ Kb3 Be3 Kb2 Rb1+
1Nq2b1B/n2Np1r1/R2P1n1n/rR1nP3/2R2P2/1pB2R2/5rbn/2k1KBN1 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 Qc2 d6 Qg6 d5 Qg5 f6 cxd5 f5 gxf5 Be6 Qg2 Bc8 Qg4 hxg4 f4 Kd7 d4 Kd6 a4 g5 e4 b5 h4 c5 a5 c4 f6 b3 h5 b4 h6 b2 h7 b3 f7 g3 a6 g4 a7 g2 Be3 c3 Rh6+ Nf6 Bc1 c2 Be2 g3 Nf3 g1N Ra2 g2 Na3 b1N Rh3 Bb7 Bb2 c1N Bc3 Nc6 Rc2 Qc8 Bf1 Nce2 Rh5 Rg8 h8B Rg7 Rh3 Ng3 e5+ Kc7 d6+ Kb6 d5 Kc5 d7 Nf5 d8R Nh6 d6 Kd5 Bd2 Ke4 Nb5 Nc3 Nbd4 Ncd5 Bc3 Ke3 Rc1 Ne2 Rd7 g1R Rc7 R1g2 Ng1+ Ng3 Rd7 Rb8 a8R Rf2 Ra6 Na7 Nc6 Ra8 Nb8 Bc6 Rc7 Bb7 Rc4 Bc6 Bg2 Kd3 Rd1+ Kc2 Bf1 Bb7 Rdd4 Kc1 Rc5 Bc6 Rb5 Bb7 Rc4 Bc6 Be2 Nf1 Rf3 Nh2 Bd3 Bd7 Be2 Bh3 Bf1 Nc6 Rab6 Ra5 Ra6 Na7 Re4 Rg4 Ra4 Bg2 Rc4 Bg7 f8N Rg3 Ne6 Bf8 Nc5 Rg7 Ncd7
N2bRB2/1rP1rqbp/6Pk/2Npn3/3P2R1/nN3RB1/1rnK4/1r1BBb2 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 a4 gxh4 Qg4 Bb7 axb5 Ba6 b6 Bb7 b5 Bc8 Qb4 cxb4 g4 Kf7 f4 Kg7 c4 a5 c5 e5 c6 d5 f6+ Kh6 f5 h3 f7 h2 f6 a4 b7 a3 b6 e4 Nc3 a2 Be2 e3 Ne4 b3 Nc5 b2 Nf3 b1N Nd4 Qe7 Rf1 h1R Ndb3 Na6 b8B Nb4 b7 Bg7 f8R Na3 f7 Nf6 Bg3 Nd7 b8N Ra7 c7 Ne5 Nbd7 Ba6 Bd1 e2 Nb6 Rb7 Na8 Bf6 Rb1 a1B Re8 Qe6 Bb2 Bd8 Bc3 Rg1 d3 Nbc2+ Kd2 e1R Rf3 Rg8 f8B+ Rg7 Kc1 Re2 Bce1 Qf7 g5+ Kh5 g6 Kh6 Rb2 Reg2 Bef2 Bc4 Kd2 Rh2 Be2 Rb1 Bd1 Nb4 Ke3 Qe6 Bd6 Nec6+ Bge5 Rd7 Be1 Qf7 Rg2 Bc3 Rg1 Rhb2 Bh2 Bg7 d4 Bf1 Bf8 Nbc2+ Kd2 Re7 Rg4 Ne5 Bhg3
1K2BBbb/R4P2/b1r3n1/r1RbpNpq/1N1b2q1/2N5/2RkPqP1/3BR3 b - - 0 1 illegal: No proof kernel forced: bxLB
1nN1br2/1P2b1BK/r2p1Nnp/5pb1/1BBP3P/5R2/RnkN3q/4Nr1R b - - 0 2 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 g6 axb5 Qb6 f4 Qc7 Qh5 fxe4 f5 Qa5 f6 Qd8 Qf5 gxf5 Kf2 Kf7 Kg3 Ke6 Kf4 Kd5 Kg5 Kd4 g4 e5 c4 a5 h4 a4 b6 e3 c6 a3 c7 e2 b7 Kd3 c5 a2 c6 e4 Nf3 e3 Bb2 h6+ Kg6 Kc2 f7 e1B g5 e2 Bg7 Be7 f8B Ra6 d4 B1b4 Nbd2 e1N Bb5 Nd3 Bc4 Nb2 Raf1 a1R Ne1+ Kd1 Rf4 Bbd6 Rf3 Bf4 Be5 Rb1 Kg7 Be3 g6 B3g5 Bd6 Qe8 Bc5 d6 Bb4 Bd7 c8R Rba1 c7 Ba4 Rd8 Qb5 c8N Qe5+ Kf7 Qh2 g7 Bd7 Kg6 Be8+ Bf7 Nf6 g8N Nh5 Nf6 Nf4+ Kg7 Ng6 Bc4 Rg8+ Kh7 Rb1 Bg7 Rf8 Rd7 Kc1 Rc7 Kd1 Rc5 Rc1 Ra5 Ra1 Nd3+ Kc2 Ra2 Rf1 Ne1+
2B1rR1N/8/2p1p1R1/1q1P1B2/1Bq2pNR/n2nrP2/2nb2rP/1bRk2NK b - - 0 1 illegal: No possible last move
1Rn3n1/P1BK1P1R/1p2Nq1N/1P2N1b1/Rnb1b2q/6kp/r1p2r2/2BB2N1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 Ke2 Kf7 Ke3 Kf6 Kf4 h5 g4 c5 a4 b6 d4 b3 a5 b2 d6 c4 a6 c3 d5 h3 d7 e6 d6 h4 Nd2 b1B Be2 h2 Nc4 Nc6 Ra4 Na7 Bd1 Be4 Ne5 c2 f3 Qe7 d8B Bcb7 d7 Bbd5 Bc7 Bc4 d8N Nc8 Ndf7 Qd6 Nh6 Be7 Ra5 Rh7 Ra4 Rf7 g5+ Kg7 g6 Kf6 Ke3 Kg5 g7 Kh5 Kf4 Qc6 Nd7 Bg5+ Ke5 Ra7 f6 h3 f4+ Kh4 f5 Rf8 f7 Kg3 f6 Ra8 Nf3 Ra7 Re1 h1N Rf1 Nf2 Ng1 Nd3+ Kd4+ Nf4 Ke5 Nd5 Rf4 Nb4 Rh4 Re8 f8N Rd8 Nc5 Rd2 f7 Rf2 Ncd7 Nge7 g8R Ra8 Kd4+ e5+ Kc3 Qf6 Ne6 Nd6 Rb8 Ndc8 Ng4 Ng8 Rh7 Bf5 Nh6 Bg6 Bd8 e4+ Ne5 e3 Kd4 e2 Bc7 e1Q Bg4 Be4 Bd1 Rf3 Bd6 Ra3 Bc7 Ra2 a7 Qef2+ Be3 Q2f4 Bd2 Qh4 Bc1 Nd6 Rb7 Rd8 Rb8 Nc8+ Kc3 Bf1 Kb3 Rd2 Kc3 Nd3 Kd4 Rf2 Kc4 Bg6+ Kd5 Be2 Kc6 Be4+ Kd7 Nb4 Rh8 Bc4 Rh7
KNNn2nr/Prp1p2n/r2P1b2/N4R2/1BR1P1qB/1b1q4/1RpN4/5Bk1 b - - 0 1 legal: proof: c4 d5 f4 dxc4 b4 a5 bxa5 g5 fxg5 h5 g4 Rh7 g6 Rh8 g5 Bh3 Qc2 Bd7 Qf5 Bc8 Qg4 hxg4 Kf2 Kd7 Ke3 Kd6 Kd4 b5 a4 f5 h4 g3 e4 g2 h5 b4 g7 f4 h6 f3 g6 c3 a6 f2 h7 b3 a5 b2 a7 c2 a6 Qd7 Ra4 Qb5 Ne2 g1Q Rh5 Qg3 Rf5 Nf6 g8N Qg2 g7 Qg3 Rc4 Nh5 Nf6 Qgb3 g8R Be6 Nd7 Nf6 d3 Qc6 Bg5 Bg7 Nd2 b1R Nc1 Qbb5 Rf8 Ng8+ Bf6 Qcb7 Ncb3 Qc8 Na5 Qb3 Rd8 Qa3 Rf8 Rb7 Rb5 Bd5 Rb2 Ke6 Rf7 Qc3+ Kc5 Nc6 d4 Nd8 Bh4 Bf6 Nb8 Qd3 Ra4 Ba2 d5+ Ke5 d6 Kf4 Rc4 Ke3 Rf8 Qg4 Rf7 Ne6+ Kc6 Bb3 Rf8 Bg5 Rf5 Bf6 Bg2 f1N Bh3 Rb4 Bg2 Nh2 Bf1 Ra4 Kb7 Nf3 Nbc6 Rd8 a8N Nfg5 Nb6 Rb8+ Ka7 Rb7+ Ka8 Ra1 a7 Nd8 Nb8 Ra3 Nc8 Ra4 Nac6 Ra6 Na5 Qg3 Re5 Kf2 Rd5 Kg1 Rf5 Qg4 Re5 Nh6 Rf5 Rg8 h8B Nh7 Bg7 Re8 Nb1 Rh8 Nd2 Ng8 Bh6 Kh1 Be3 Kh2 Bc5 Kh1 Ba3 Kg1 Bb4
2NR3r/1rb2P1q/bp3BB1/1kpqn1N1/R1n5/2q1p1N1/1PPR4/rBN3K1 b - - 1 2 legal: proof: e4 f5 d4 e5 g4 h5 gxh5 Nc6 Qf3 Nb4 dxe5 Nxa2 e6 Qg5 e5 Qd8 Qe4 fxe4 h4 d5 f4 c5 Kf2 g5 e7 Kd7 e8N Kc6 f5 a5 f6 g4 h6 d4 h7 g3+ Kg2 d3 e6 d2 h5 d1Q h6 b6 e7 a4 Nd6 a3 e8B+ Qd7 Bg6 Qd5 Nd2 Ra7 Bc4 Nc3 Nf1 a2 Rh2 Nd1 Bg5 Rb7 Ne2 Ne7 Nc1 Ne3+ Kg1 g2 Ng3 Qh3 Bb3 Nc4 Bh4 e3 Bg5 Be6 Nc8 Kb5 Bh4 Nc6 Bg5 Rg8 h8R N6e5 h7 Bd6 Bh4 Rd8 Re8 Qf5 h8N Bc7 Nf7 Qh5 Rg8 Qh7 Ng5 Bf5 f7 Bd3 Nf3 Rf8 Bf6 Re8 Ng5 Rf8 Rg7 Rh8 Rg8 Be2 Rd8 Bd3 Rb1 a1Q Rh4 Qa3 Ba2 Qc3 Ra1 Bf1 Bb1 Bd3 Ra4 Be2 Kh2 g1R Rh3 Rd1 Rh5 Bf1 Kg1 Re1 Rh2 Rd1 Ba2 Re1 Rd2 Rd1 Nce2 Ra1 Nc1 Kc6 Nd6 Na5 Rf8 Ba6 Rd8 Nac4 Nc8 Kb5 Bb1
1k2BKBN/1p2p2p/n1r1rRP1/BR6/2b2br1/P6N/R3B1qP/b2bNn2 b - - 0 1 legal: proof: e4 a5 d4 f5 f4 c5 dxc5 a4 Qd6 a3 bxa3 g6 a4 fxe4 a5 g5 f5 Kf7 Qc7 Ke8 Qf4 gxf4 Kf2 d5 c4 Kd7 g4 Kc7 a3 d4 g5 d3 a6 e3+ Kf3 e2 Kg4 e1B Kh5 f3 a7 d2 f6 d1B c6 f2+ Be2 f1R f7 Qd3 c5 Qc3 Ra2 Bh6 f8N Bc2 Bd2 Qd3 Ng6 Rf8 Nh3 Rf3 Rf1 Qb3 Ba5+ Qb6 Nd2 Rf6 Nf3 Bc3 Ne1 Bd1 Rf3 Re6 Rf6 Kd8 c7+ Kd7 Bf3 Qc6 Be2 Qg2 c6+ Kd6 Rf3 Ba1 Rf6 Bd7 c8B Na6 c7 Bb5 Bd7 Rc8 a8R Bc4 Be8 Rb8 Ne5 Rc8 g6 Bf4 Ra7 Nh6 Ra8 Rd8 c8B Nf5 Bcd7 Ne3 Nf7+ Kd5 Ba4 Nf1 Bb3 Rd7 Ra7 Kc6 Ra8 Rf8 Nh8 Kd6 Ra7 Rc7 Ra8 Rc6 Ra7 Bfe5 Kh6 Bg3 Kg7 Bf4 Bf7 Rfc8 Be8 R8c7 Kf8 Rd7 Bc3 Kc7 Ra8 Rd4 Ba5+ Rb6 Rd8 Rc6 Rd7+ Kb8 Rd5 Re6 Rb5 Rbc6 Rb4 Be3 Rb5 Rg4 Bc2 Bf4 Be4 Re5 Bd5 Re3 Bdf7 Ree6 Bg8
2bN2NK/2B1P1R1/p1pq2rb/4P3/nRqrN3/Rb2p3/R1p1P1n1/1Bk1B3 b - - 0 1 illegal: No proof kernel
R6n/Rq2b2p/RpPp2nB/8/Rp2r1br/1P1B2K1/B1P1q3/N1NkN1b1 b - - 0 1 legal: proof: e4 a5 h4 g5 d4 gxh4 Qd2 c5 dxc5 f5 Qb4 axb4 exf5 Ra3 Ba6 Ra5 Bf1 Ra8 a4 Kf7 f4 Kf6 Kf2 e5 g4 b6 g5+ Kf7 a5 e4 a6 d6 g6+ Kf6 g7 h3 a7 e3+ Kg3 h2 c6 e2 Ra4 Qc7 Nc3 Be7 Nf3 Qb7 Na2 Nh6 g8B Nf7 Ne1 Nd7 Ra6 Rb8 a8R Nde5 R8a7 Ng6 Be3 Bd7 Nc1 Re8 Rg1 h1Q Bd2 Ng5 Ba2 Qe4 Ra4 Nf7 R7a6 Kg7 f6+ Kh6 f5+ Kh5 Bh6 Rhg8 Ra7 Nfh8 f7 Qc4 f6 Bg4 f8N Qb5 f7 Q5a6 Nd7 Rgf8 Nf3 e1B+ Kg2 Bf2 Nc5 Qd3 Ne1 Qe2 N5b3 Be3+ Kg3 Rg8 Rg2 Bg1 f8R Rg7 Rgf2 Rf7 Rg2 Rf4 R7a6 Re4 Rg8 Rf8 Na1 Rff4 Bf8 Kg5 b3 Kf5 Bh6 Ke5 Rc8 Kd4 Rg8 Ke3 Rga8 Kd2 Rf2 Kd1 Rf3 Qe3 Bd3 Qe2 Rf2 Bh3 R8a7 Rh4 Rf8 Bg4 Rfa8
Kb4kn/B2BNRrn/1p2BPq1/5R1P/1rB1p2Q/bR1P4/3Rp3/5n2 b - - 0 1 legal: proof: c4 a5 e4 f5 g4 fxe4 b4 d5 cxd5 h5 gxh5 c6 d3 Qd6 Na3 Qd8 Nc2 c5 bxc5 Bg4 Nb4 axb4 Qxg4 Nc6 Qd1 Nb8 Ke2 Kf7 Ke3 g5 Kd4 e6 h4 g4 f4 e3 a4 g3 c6 b3 d6 b2 Kc5 b1N h6 e5 f5 e2 a5 e4 c7 g2 Kb6 Qe7 c8B Ra7 h5 Qe6 f6 Rh7 a6 Rg7 h7 Qa2 h8R Qd5 d7 Bb4 d8R Rg5 Ra3 Rg3 Nh3 g1B+ Be3 Bf2 Bd7 Nc6 Rb3 Bf8 Nf4 Nd4 Qe1 Qg5 Ng6 Nf3 Bfh3 Ne7 Rh7+ Kg8 Rf7 Nbd2 Bhe6 Nf1 Rg1 Ra8 a7 Rb8 a8B Qf5 Ka7 Ng5 Rc8 Nh7 Rc5 Rg5 Rc2 Bg3 Rd2 Be5 Qh4 Rg2 Nf4 Rg7 Rg5 Ng6 Nd5 Nh8 Bg1 Qg6 Rf5 Ba3 Bd4 Rc8 Bc5 Rc7 Kb8 Bh2 Ba7 b6 Bb7 Rc4+ Ka8 Bhd6 Ba6 Rb4 Bc4 Bb8 Ne7#
1Q2bn2/2R2P2/R1rn4/PN2BB2/3BR1n1/Rrrnn3/1P1bK2k/5Bbr b - - 0 1 illegal: No proof kernel
2r2N1r/2Pqk2q/R1n2P2/qP3b2/4n1BB/2n1qR2/Q1Kp2R1/R2B2bB b - - 0 1 illegal: No possible last move, all moves rejected
3qqQ2/K1b2R1p/B3Rrr1/1qNBB1qn/1Bn2R2/P2nP3/2kR2P1/4n3 b - - 0 1 legal: proof: f4 d5 b4 g5 c4 a5 cxd5 axb4 h3 Ra5 Nc3 Bd7 Ne4 Bg4 hxg4 Ra8 Ng3 e6 Nh5 e5 fxe5 Ra6 Nf4 gxf4 Bb2 Ra3 Bc1 Ra8 a3 Ke7 e3 c5 d3 f5 Ke2 b5 d6+ Ke6 g5 Kd5 e6 b3 e7 f3+ Kd2 c4 Kc3 b2 Kb4 b1N e8B f2 g6 c3 g7 Qg5 Ra2 f4 d4 Ke4 d5 c2 Kc5 b4 Kb6 f3 d7 b3 d8B b2 d6 Nc6 d7 Nd2 Qe2 b1Q+ Qb5 Nf6 g8R Ne5 Bb2 c1N Ne2 Nh5 Bf7 Bd6 Be7 Qd3 Nd4 Rf8 Ne6 Bc7+ Ka7 Qd6 Rg6 Rhg8 Be2 f1Q d8R f2 Qe8 Nef3 Ba6 Ne1 Rh3 Qe2 Rf3 Qeb5 Be5 Kd3 Ra1 f1Q Rd7 Qd5 Bb4 Nc4 Nc5+ Kc2 Rb1 Ncd3 Rd1 Qdc6 Bd5 Qe6 Qf7 Qe8 Re6 Rg6 Qg7 Rf5 Rf7 Qgd8 Qf8 Rff6 Rf5 Qe2 Rf1 Qg4 Rf4 Qg5 Rd2+
r6R/3b3p/B1r1BR1K/NbPP1q1b/Pr4R1/n5Q1/1R1BnBkp/6n1 b - - 0 1 illegal: No possible last move, all moves rejected
4rN2/1n1R1Nn1/2PNn1b1/Qq3Rn1/pR2q2r/1p1B1bP1/P2K3R/N5k1 b - - 0 1 legal: proof: c4 d5 cxd5 c5 g4 e5 b4 e4 bxc5 e3 Bb2 Bd6 Bf6 Bg3 hxg3 gxf6 Qc1 exf2+ Kd1 f5 Qc2 f4 Kc1 Bf5 Qd1 Bc8 e4 Ke7 d4 Kf6 d6 Kg5 d7 h5 e5 f5 d5 a5 c6 b5 d6 f3 e6 f4 e7 h4 e8N a4 Rh3 b4 Ng7 b3 Nh5 Nh6 Nd2 Nf5 Nf6 Na6 Rh1 h3 Bg2 f1Q Ne8 h2 Bh3 f2 Qe1 f3 Nf6 Nc7 Ne2 Rh4 Nd4 Qe7 d8N Qb5 d7 f1N Nc2 f2 Nc4 Ng7 Nd6 Ne3 Bf1 Nef5 Kd2 Qe4 Bd3 Nce6 Rc1 f1B Na1 Bg2 Rc4 Bf3 Rb4 Ba6 Rf1 h1N Rf2 Bc8 Rh2 Nf2 Nh7+ Kh6 g5+ Kh5 g6 Kg4 Ne8 Nd6 Nf8 Nh3 Nf7 Nb7 d8R Nhg5 Rd7 Rb8 Ned6 Ra8 Rf2 Kh3 Rf1 Kg2 Rh1 Nh5 g7 Rb8 g8R Nhg7 Rf1 Ra8 Rh8 Kh2 Re7 Bd7 Rh7 Be8 Rd7 Rd8 Nh8 Beh5 Nhf7 Re8 Rh6 Bg6 Rh8 Bfh5 Rf5 Bf3 Rh5 Qec4 Qe5 Qe4 Qc5 Kh1 Qb6 Kg2 Qa5 Kg1 Rh7 Rf4 Rh3 Rh4 Rh2
2N4B/1rNN3B/prkPr1P1/3PB1Q1/K1p5/3n4/4rrbR/3BbqbN b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 f4 Nd7 f5 Nb8 b4 Nh6 g4 Na6 h4 Ng8 h5 Nc5 Ra3 Ne6 Rf3 Nf4 Rf2 Ng6 hxg6 Rb8 Rf4 gxf4 g5 Ra8 g7 Kd7 b6 e5 b7 c5 b8B h5 b5 c4 f6 a6 g6 f3 d3 f2+ Kd2 e3+ Kc3 e4 f7 h4 b6 h3 b7 h2 Nh3 e2 Qd2 e1R Qg5 e3 Bb2 e2 Na3 Bc5 Nb5 Nf6 g8B Ng4 Nd6 Ra7 Bh7 Re8 Bc7 Be3 Kb4 Re6 Bh8 Qf8 d4 Ne5 Ka4 Nd3 Bg2 f1R Nf2 Rb1 Bf3 e1B Bd1 Rb6 Bb8 Bc3 Bc7 Re1 Bb8 Re2 Bc7 Be1 Bb8 Qe7 Bc7 Qf6 b8N+ Ke7 f8N Bb7 Nbd7 Bc6+ Nb5 Rab7 Be5 Ke8 d6 Bg2 Na7 Qf7 Rg1 h1R Nc8 Rh2 Nh1 B3f2 Rf1 Bg1 Rf4 Qf5 Rh4 Qf1 Rh6 Rh4 Rh5 Rf4 Rh2 Rff2 Nf6+ Kd8 Nd5+ Ke8 Nd7 Nf4 N7f6+ Kd8 Nc7 Nd3 Ne4+ Kd7 Nc5+ Kc6 Nd7 Rf5 Bf4 Rff6 Be5 Rff2 d5+
1RqQ4/2R2BBP/1n4n1/3pPb1q/2RB1rk1/pKn3rP/3Bn1R1/r5N1 b - - 0 1 legal: proof: a4 c5 d4 h5 Nc3 b5 axb5 e6 Nd5 Be7 g3 Bh4 gxh4 cxd4 f4 e5 fxe5 Qe7 Ne3 Qd8 Ng4 hxg4 Kd2 Ke7 b4 Ke6 e4 g5 c4 f5 Kc2 a5 c5 d3+ Kb3 d2 c6 f4 b6 f3 b7 f2 h5 g3 h6 g2 b5 g4 h7 g3 b6 Ne7 c7 Rg8 Ra4 Ng6 Rc4 d6 Bb2 Nd7 b8B Rg7 b7 Nb6 Bd3 f1R Ba7 Rf4 b8B Qg5 Bb1 Qh5 Ba2 Bd7 c8R a4+ Kb4 Rg8 R8c7 Rg7 Qf1 d1Q Qd3 Qdg4 Bc1 Qgf5 Bd2 Qf8 Kc3 Qc8 Kc2 Nd5 Bd4 Nb6 Nh3 g1N Bb3 Ne2 Rg1 a3 Rg2 Nc3 Ng1 Ra5 Ba7 Rb5 Ba2 Rb1 Bb8 Rd1 Kb3 Ra1 Ba7 Ke7 e6 Rg8 Bh8 Rg7 Qd5 Kf6 e7 Bf5 e8R Kg5 e5 Rg8 Bg7 Kg4 Rf2 g2 Qd4 Qe6 Rb8 Qc8 Qd3 Na8 Bd4 Nb6 Nh3 g1N Re2 Kh4 Rg2 Nge2 Ng1 Nf8 Bh6 Rg3 Bg7 Kg5 Qf3 Ng6 Qd5 Kg4 Qg8 Be6 Qd8 Bd7 Bb1 d5 Bd3 Ne7 Bg6 Bf5 Bf7 Ng6 h3+
b1K3R1/q1BpQ2P/3N2Bn/6B1/RPRRrr1n/2P3n1/3pBk2/1r3q1n b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 g3 b5 axb5 e5 fxe5 Kf7 Ra2 Ke7 Ra1 Ke8 Kd2 h5 Ke1 f4 Nd2 f3 Ne4 Be7 Nf2 Bg5 Ng4 Bf4 gxf4 hxg4 Kf2 Kf7 Kg3 Kg6 b4 Kf5 h4 Ke4 c3 a5 f5 g5 b6 d3 e6 a4 h5 a3 e7 a2 e8R+ Qe7 b7 f2 f6 Na6 b8B Nc5 f7 Bb7 f8R Nh6 Rc8 Qf6 Rh4 Qb6 e3 Qa7 Be2 f1Q Rg8 Rh7 Rc7 Rf7 Nf3 Rf4 Nd4 Bd5 Nb5 Bc6 Rb1 a1R Qe1 Bb7 Rb3 Rb1 Ra3 Bd5 Rcc8 Bc6 Bc7 Bd5 Rcf8 Re8 Ra4 Re5 Rc8 Ba8 Qd1 Re6 Qb3 Re8 Qf7 Re5 Qe7 Re6 Bd2 Re5 Be1 d2 Bf2 Nd3 Nd6+ Kd5 Bg1 Nf2 Bh2 Re6 Bd8 Ree4 Rc4 Nf7 Qf8 Ke5 h6 Kd5 h7 Nh6 Bc7 Ke5 Bg1 Kd5 Qe7 Nh1+ Kh2 Qe1 Bf2 g3+ Kh3 g2 Bg3 Rf1 Bf4 g1N+ Kg2 g4 Bg5 g3 Rf4 Re6 e4+ Ke5 Rg4 Nf3 Kh3 g2 Rd4 Nf2+ Kg3 Nh4 Rf4 Ng6 Kf3 g1N+ Ke3 Nh1 Kd3 Ng4 Kc4 Nh6 Kb5 Nh4 Rg4 Rf4 Rc4 Qaf2 Ka6 Qef1 Rd4 Qe3 Ka7 Qef2 Kb8 Qe3 Kc8 Qef2 Bd1 Ne2 Rc4 Neg3 Be2 Ngf5 Rg3 Qa7 Rd3 Nfg3 Rdd4 Rf7 Bf6+ Kf4 e5+ Ke3 Bg5+ Qf4 Qd8 Re8 e6 Kf2 e7 Qf3 Rc5 Rf4 Rcc4 Ref8 e8B Re4 Bh5 Rff4 Bg6 Qg2 Qe8 Qf1 Qe7
Q2R4/2RrnP2/1p3BBR/N1P3K1/bP4pB/1n2Bq2/p1kq2b1/n2R2q1 b - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b6 a5 Qc7 a6 Qd8 g4 e5 f4 h6 Nc3 Ba3 Ne4 h5 Nf2 Be7 g5 Bf6 Ng4 hxg4 gxf6 Nc6 Kf2 Rb8 Ke2 Rb7 axb7 a5 Ke1 Nb8 Kf2 Kf7 Kg3 g5 h4 d5 b4 d3 c4 a4 h5 d4 h6 d2 c5 e4 h7 e3 Bd3 e2 Nf3 e1N Rh6 a3 Qa4 d1Q Be3 a2 Qa8 Ne7 Nd2 Nbc6 b8R Bb7 Nc4 Na5 Rc8 Bg2 Rc7 Nb3 Na5 Nc2 Be2 d3 Rb1 Rf8 h8B d2 Rc1 Qh1 Rd1 Nca1 Bf3 Qd3 Be2 Rd8 Bf3 Kf8 f7 Qd6 Bf6 Qd7 Kf2 g3+ Ke2 Qd5 Bh5 g4 Bh4 Kg7 f8R Rd7 Rd8 Ng6 f6+ Kf7 Qa7 Ke6 f7 Kf5 f8B Ke4 f5 Ne7 f6 Qh2 f7 Qc6 Rb1 Qf6 Bg7 d1B+ Ke1 Kd3 Qa8 Qf3 Bgf6 Nd2 Rc1 Ba4 Rb1 Kc2 Rd1 Qd5 Ke2 Ndb3 Bd2 Qh1 Ke3 Qe1+ Kf4 Qf3+ Kg5 Qef2 Bf4 Qd2 Qc8 Bh1 Qb7 g2 Be3 g1Q Qa8 Bg2 Bg6+
K7/RPbb2B1/p1R1R1qr/2p1N1qP/B7/rBp2B1n/1k1QP2b/5b1R b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 g4 c4 bxc4 b5 g3 b6 Bh6 fxg3 Nf6 g4 Bf8 g5 Ng8 g4 h6 g6 Nc6 Nc3 Nd4 Ne4 Nb5 axb5 h5 g5 Ne7 Nf2 Ng8 Ng4 hxg4 Kd2 Ke7 Ke3 Ke6 Ke4 d5+ Kd4 f5 h4 c3 h5 f4 g7 f3 b7 g3 b8R f2 g6 g2 b6 Nh6 g8B+ Nf7 b7 Qg5 g7 Bd7 Rc8 Rh6 Bb2 Bd6 Nf3 g1B Qd2 Bh2 Bg2 f1B Re8+ Kf5 e6 c6 e7 Bc7 Kc5 Ke4 Rc1 Qg6 Ra1 d4 Ra4 Ng5 Bb3 Nh3 g8R a6 Rc4 Rd8 Rgf8 Rc8 Rf6 Rd8 Rh8 Rf8 e8B Rf7 Rd6 Rf4 Ne5+ Rf3 Re6 Qg5 Ba1 Qg6 Qa2 Ke3 Qa5 Kd2 Qb4 Rd3 Bf3 Kc1 Rg8 Rd2 Rh8 Ra2 Rg8 Ra3 Qa5 Bb8 Kb6 Bc7+ Ka7 Qg5 Qd5 Qg6 Bb2+ Kb1 Ka8 d3 Bc1 d2 Rh8 d1Q Qd2 Ra5 Ba3 Qe1 Bf8 Qh4 Bg7 Qhg5 Rd4 c5 Rdd6 Bc8 Bea4 Bd7 Rc6 Ka1 Bb5 Ra3 B5a4 Kb1 Ka7 Ka1 Ra8 Bd8 Kb8 Kb1 Ra7 Bc7+ Ka8 Ka1 Qe3 Kb2 Qd2+
2n4R/1nk1n2R/8/4BBnK/rNpp1p1p/pQBR1P2/P1RP2B1/1r2q3 b - - 2 3 legal: proof: e4 d5 h4 b5 c4 bxc4 h5 g6 hxg6 Bh6 e5 Be3 Rh5 Bb6 Rh1 Bc5 b3 a5 Na3 a4 Nc2 a3 Nd4 Bd6 exd6 Bh3 Qh5 Bd7 Qd1 Ba4 bxa4 Ra5 Nb3 cxb3 Bb2 Ra7 Bc1 Ra8 Ke2 Kd7 Kf3 f5 g4 h5 g7 e5 a5 c5 g5 b2 a6 b1N a7 c4 g6 d4 Bg2 f4 Nh3 Qh4 Bb2 Kc6 d7 Kc7 d8B+ Kd7 Bc3 Rh7 Bc7 Ne7 g8B Na6 g7 Nc8 Qb3 Nc5 Be6+ Kc6 g8R Nb7 Bf5 e4+ Ke2 Rb8 a8R Qg3 Rg7 h4 Be5 Rh6 Rh7 Rf6 Bf1 e3 Rh2 Qg1 Kf3 e2 Bg2 e1N+ Kg4+ Nf3 Kh5 Qe1 Rh1 Rd6 Rf1 Rd5 Rg1 Ng5 f3 Ra5 Nf2 Qf1 Nd3 Ra4 Nb4+ Kb6 Rh1 Qe2 Rc1 Qe1 Bb2 Nc3 Rab1 Nd5 Bc3 Nde7 Rc2 Qf1 Re1 Qh1 Re3 Qe1 Bf6 Kc7 Rd3 Qc1 Bg7 Qe1 Be5+ Nbd6 Nc6 Na7 Qb1 Rb5 Rah8 Nc8 Rc1 Rb2 Nb4 Rb3 Qc2 Rb2 Qb3 Rb1 Bg7 Nb7 Rc2 Qc1 Bf6 Qe1 Be5+
2b3nk/bqn1r3/7n/Pn2N1K1/N1PpB3/n1qPrN1Q/2R1q1NR/3R3R b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 axb4 Bb5 c4 Bb2 c3 Bf1 cxb2 Ke2 Kf7 Ke3 b5 Kf4 d5 a4 g5+ Kg4 Kg7 h4 e5 c4 e4 f4 e3 d3 d4 a5 b3 Rh3 e2 Bg2 e1Q Bd5 b4 Be4 Qc3 Nf3 Rh7 h6+ Kh8 h5 Qe7 Qf1 Na6 Rh2 Nc7 Rc2 Qe8 Qh3 Re7 h7 Ra6 Qh4 Rae6 f6 Re5+ f5 R5e6 Nbd2 b1N f7 b2 f6 b3 Ne1 Na3 Qh3 b1N Ng2 b2 Nf3 Nab5 Kf5 g4 Kg5 N1a3 Rd1 Bg7 f8N b1Q f7 g3 Nd7 Be5 f8N Qbb4 Nf4 g2 Nc5 g1N Nfd7 Ne2 Ng2 Ng3 Na4 Bd6 Nde5 Bc5 Rf1 Nf5 Rd1 Kg7 h8R Ba7 Rh6 Qbb2 Rh8 Qc6 Rh6 Qb7 Rh8 Qe1 Rh6 Qbc3 Rh8 Qe2 h6+ Kf8 h7 Kg7 Nc6 Nfh6 Nce5 Nf6 Rf8 Nfg8 h8R Ng4 Rh5 N4h6 Rf4 Kh8 Rfh4 Qa6 Qg4 Qb6 Rhh1 Qb7 R5h2 Rf6 Ng1 Rf3 Qh3 Re3 Ngf3
1r1k2B1/2B1nQ2/N1n1b3/1qb3Kp/2n3Nr/1B1NR1NP/B2PrPb1/2r2q2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e3 Nf6 e4 Ng8 a4 g5 h3 f5 exf5 g4 Rh2 g3 Nf3 gxh2 Nc3 Bd7 Bb5 Ra5 Kf1 Ra8 Qe1 Ra6 Bb2 Re6 Rc1 Qc8 Nb1 Na6 Rd1 Qb8 Bc1 Rb6 Qe2 Qc8 Re1 Qa8 Qd1 Qd8 Ke2 Nb8 Rh1 Ra6 Ng1 Ra7 Ke1 Ra8 Bf1 Bc8 Ke2 h5 Ke3 b5 Kf4 c5 g4 c4 f6 e5+ Kg5 b3 d6 b2 d7+ Kf7 a5 c3 a6 b4 a7 b3 Qf3 e4 Na3 b1R Nc4 b2 Ne2 e3 Ng3 e2 Ne5+ Ke6 Nd3 Qe7 d8N+ Kd7 Nf7 e1Q Nh6 Q7e6 f7 Bc5 f8N+ Kd8 Nd7 c2 Qf7 Nc6 Nb8 Qb3 Na6 Rb8 a8B Qb5 Be2 Bd7 Bd1 Be6 Rg1 Qe2 Re1 Qf1 Re3 h1B Bb7 Nge7 Bc8 Bc4 Be6 Re8 Bd5 Ra1 Be6 b1N Bb2 c1R Be5 Ra3 Bb3 Ra4 Bd6 Bcd5 Ba2 Bdg2 Beb3 Na3 Be5 Nc4 Bc7+ Kd7 Kf6 Bd5 g5 Be6 g6 Bg2 g7 Rb4 g8B Ra4 Bf4 Kd8 Bd6 N4e5 Kg5 Rh4 Ng4 Nc4 Qg6 Rf8 Qh7 Rf4 Qf7 Re4 Rf3 Ree1 Re3 Re2 Bc7+
3q1B1q/Pb4B1/4Rr1k/n7/1br1r2p/rBB5/PQR2R1P/2qnRnKN b - - 0 1 illegal: No possible last move
4R3/1B2B3/b4P2/3PRBR1/2rbp1KQ/BqqkPrpn/1R1b2n1/r2Nn3 b - - 0 1 legal: proof: g4 b5 c4 g5 h4 d5 cxd5 Qd6 a4 Qd8 axb5 f6 Nc3 gxh4 Ne4 Bh6 Ng5 Bg7 N5f3 Bf8 g5 f5 Nh2 Bh6 Ng4 fxg4 Bg2 Bg7 Bf1 Bf8 b4 Kf7 d4 Kg6 f4 Kf5 Kf2 Ke4 d6 e5 f5 a5 b6 c5 b7 h5 d7 c4 d5 h3 Kg3 a4 e3 c3 b5 a3 b6 a2 g6 h2 f6 h4+ Kf2 c2 g7 h3 Kg3 Rh4 Bb2 c1Q Ne2 Nh6 g8B Qc3 Qe1 Bb4 Rb1 a1B Rc1 Kd3 Qf2 Nc6 b8R Ba6 b7 Nd4 Qg1 Nf3 Rc8 Qb6 d8B Ne1 b8R e4 Bh7 Nf5+ Kf4 Ba5 Bg6 Qbb3 Be7 Rh5 Rc2 g3 Re8 Nh4 Bba3 Nhg2+ Kg4 Rf5 Rb2 Rf3 Bf5 Ra7 Rg8 Rc7 Rg5 Rc4 Rc8 Qd4 Rb8 Bd2 Re8 Qc5 Rb1 Bd4 Nc3+ Kc2 Nd1 Qcb4 Qf2 Q4c3 Rg1 h1R Rb2+ Kc1 Be2 h2 Rf1 Rg1 Bd3 h1N Qe2 Rc8 Bb5 Rc4 Rf2 Rf1 Bc6 Rg1 Ba8 Rf1 Bb7 Rg1 Rf1 Nf2+ Kh5 Nh3 Kg4 Nh4 Qh2 Nhg2 Rb1+ Kc2 Rb2+ Kd3 Rf2 Nhf4 Qh4 Nh3 Re2 Qa4 Rb6 Rh1 Re6 Qab3 Re5 Bc1 Rc2 Bd2 Rb2 Nc2 Rf8 Qcb4 Nc3 Ra1 Rh8 Nce1 Nd1 Q4c3 Re8
K1N2rN1/1Q1qR1BP/2b1RPbn/Rpr1N3/k1b2N1n/b3R3/1P2p3/4b2n b - - 0 1 illegal: No possible last move, all moves rejected
n7/Q3r2R/4b1p1/r1P1b1Pr/2q2RNP/N3bnRp/n2BR3/1NbkN2K b - - 0 1 illegal: No proof kernel
1rr2k1n/Nq1q1Rq1/1B1pR3/1R1b1P1B/5bn1/P2Pp2q/3B2Rn/3KBQ2 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 a4 b3 axb3 Na3 c6 Nb5 cxb5 Qf3 b4 Qg4 Ra6 Qd1 Ra8 c4 e5 f4 b5 h4 g5 c5 g4 f6 b2 f5 b1Q c6 d6 f7+ Ke7 a3 e4 h6 g3 h7 g2 c7 e3 d3 b3 h5 b4 h6 b2 Ra2 b3 Bd2 Bb7 c8R Nc6 Nf3 g1Q Rb8 Ne5 Nd4 Ng6 Nb5 Qd7 Na7 Bd5 Rb5 Rb8 Rh3 Qg2 Be2 Nf6 Bh5 Ng4 Rh2 Rg8 h8B Qa1 h7 b1Q Bd4 b2 h8B Bh6 f8R Qh3 Bb6 Bf4 Rf6 Rgc8 Re6+ Kf8 Bhc3 Nh8 Ke2 Rb7 Qg1 Rbb8 Qg2 Qh1 Qf1 b1N Kd1 Qe4 Bca5 Qag7 Rc2 Qb4 Rc7 Qbb2 Be1 Nd2 Rg2 Nf3 Bad2 Nfh2 Rb7 Qc6 Rbe7 Qd7 Ra5 Qbf6 Rc5 Qff7 Rb5 Qb7 Rg1 Qe8 Rg2 Qed7 Rf7+
1B1Rq1Rb/4nnP1/3prpb1/n3P1B1/bNQ1k3/2qRrR1K/4BP2/1B5n b - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 e5 a4 exd4 axb5 d3 Nc3 c6 Nd5 cxd5 Bf4 d4 Be3 Qe7 Bc1 Qd8 c4 Ke7 g4 Ke6 b4 Ke5 e4 a5 c5 h5 b6 f6 b7 a4 g6 d6 c6 a3 c7 a2 g7 h4 b5 h3 b6 h2 g5 Ne7 g8R Bf5 c8B Bg7 g6 Nd7 b8B Rh3 b7 Qe8 Qb3 Re3+ Ne2 Bh8 g7 Bg6 Qc4 Ra7 Rg1 h1N Rg3 Ra8 Rb1 a1N Rf3 Nb3 Rb2 Na5 Rd2 Nf8 Bf5 Nd7 Bg2 Ra7 Kf1 Ra8 Rd1 d2 Nf4 d3 Nd5 Ra7 Nb4 Ra8 Re1 d1B Bd2 Bc2 Rd1 Ba4 Kg1 Ra7 Kh2 Ra8 Bc1 d2 Kh3 Ra7 Bf1 Ra8 Re1 d1Q Be2 Qd2 Rd1 Qc3 Rd3 Ra7 Bc7 Ra8 b8R Ra7 Rd8 Ra8 Rg3 Kf4 Bd2 Ne5 Bb8 Nf7 e5+ Qd4 Be6 Ke4 Rf3 Ra7 Qc8 Qc3 Ba2 Nd5 Qa6 Re7 Bb1 Re6 Qb5 Ne7 Qc4+ Qd4 Bd1 Re2 Bg5 Re3 Qa6 Qc5 Be2 Qc3 Qc4+
1qk5/nrBN1RK1/1n6/2bp2nR/P2P1b1b/1p5R/1P1brQN1/3NnR1N b - - 1 2 illegal: No proof kernel
2b1qqBN/4B1PR/1n2P2K/N1pnkrp1/1bB1NQP1/3r4/1nprN3/B7 b - - 0 1 illegal: No proof kernel
1Rb1r1n1/q1p1nRkb/5p2/rNPqpPb1/8/3QN1B1/1PK3R1/4NRrN b - - 0 2 legal: proof: g4 b5 e4 a5 a4 d5 axb5 dxe4 c3 h5 gxh5 a4 Bg2 a3 Bf1 a2 Na3 Ba6 Bd3 Bc8 Bb1 axb1B d4 g5 Kd2 e5 f4 g4 h4 f6 f5 Kf7 b6 g3 b7 g2 h6 Bc5 c4 Ne7 d5 Ba7 h7 Ba2 c5 e3+ Kc2 e2 h5 e1Q d6 Qb4 d7 Nec6 h6 Qe8 d8N+ Kf8 Rh2 Qb5 Nh3 g1R Nf2 Bf7 Nc4 Rg6 Rg2 Rg5 Bf4 Qd7 Bg3 Bg6 Ne3 Qb6 Nf7 Qd5 Nh1 Ne7 Qd3 Nbc6 b8R Ng8 Nd6 Nce7 Nb5 Qa5 Rf1 Bb6 Nd4 Qa7 Nf3 Ba5 Ne1 Nc6 Qe4 Bd2 Qc4 Nge7 Qd3 Rg8 h8N Bh7 Nf7 R5g6 Nc4 Bg5 Nfd6 Rh8 Ne3 Ng8 Nb5 Nce7 Qe2 Qb6 Qc4 Ra5 Qd3 Qa7 Rb6 Bf4 Nd6 Rg5 Rh2 Bg6 h7 Rg4 Rb8 Nh6 Bf2 Bg5 Nb5 Rg1 Bg3 Kf7 Re2 Re8 h8R Bh7 Rg2 Kg7 Rf8 Nhg8 Rf7+
1Bb1QR2/qRk1p1B1/1r2Pp2/R3r1b1/N1BpR3/K5nb/nB1P1nP1/1q6 b - - 1 2 illegal: No possible last move
Q3nn1K/B1qB2pP/p1Np1rN1/1N1bR3/P1P3b1/4B3/r4Nr1/qk2bB2 b - - 0 1 legal: proof: d4 c5 g4 f5 a4 fxg4 b4 h5 bxc5 e5 Ra3 h4 Rg3 hxg3 dxe5 Rh6 Nf3 Rh4 Ng1 Rh8 Kd2 Kf7 Kd3 Ke6 Ke4 b5 c4 b4 f4 a6 h4 b3 f5+ Kf7 f6 Ke6 f7 b2 h5 g2 c6 g3 h6 Bb4 f8B Qb6 c7 Bc3 Nf3 g1R Nbd2 g2 Bc5 d6 Nd4+ Kf7 e6+ Kf6 e7 Qb4 e8B Be6 c8N Kg5 Nc6 Qa5 Ba7 Bg4 Bd7 Qc7 N8e7 b1B+ Kd5 Kf4 e4 Ba5 e5 Bbf5 e6 Nf6+ Kd4 Rh7 Rh5 Be4 Re5 Bd5 Ne4+ Bd2 Qc2 Ne8 Ng6+ Kf3 e7 Be1 Nf2 Rh8 Bf5 Nd7 Be3 Nf8 Bd7 Rb8 h7 Rb2 Qb1 Ra2 Qb2 Rh1 Qb7 g1Q Qa8 Rh2 Bh3 Ke2 Bg2 Nf6 Bh3 Rg2 e8N Qb8 Nc7 Ne8 Nb5 Qc7 Ne4 Kd1 Nf2+ Kc2 Ne4 Kb1 Nf2 Rg3 Bf1 Bf7 Ke4 Bd5+ Kf4 Rg8 Kg5 Rg2 Nge7 Ne6+ Kg6 Qh1 Kf7 Rh8 Ng6 Rf8+ Ke7 Rf6 Rg5 Nf8 Re5 Re6+ Kf7 Qg1 Kg8 Rf6+ Kh8 Qh1 Nd1 Qg1 Beb6 Qd4 Nf2 Qa1 Be3
1r1n1KB1/bNp5/r2pNkR1/1r3N2/b2P3P/prR1Q3/P4N1n/R1Rr1q2 b - - 1 2 legal: proof: e4 b5 f4 g5 fxg5 f5 exf5 h6 c4 bxc4 g4 Rh7 b3 Ba6 g6 Rg7 g5 Nc6 Bb2 Bc8 Bf6 Rh7 g7 Nb8 g6 Rh8 Bg5 hxg5 Kf2 e5 Ke3 Ke7 Ke4 a5 Kd5 e4 h4 a4 d4 g4 b4 c3 b5 c2 b6 c1R b7 e3 Bc4 a3 Nh3 g3 Qg1 g2 Nf2 e2 Nc3 e1R Na4 Re3 Nc5 Nc6 b8R Kf6 Rb3 Rd1 Nb7 Ra6 Rc3 Nh6 g8R Ng4 g7 Bc5 Qe1 Rg3 Qe3 d6 Rf1 Rb1 Rfc1 Rb5 Bb3 g1R Bc4 Kf7 f6 Nh2 Bb3 Kg6 f7 Rd1 f8N+ Kf6 Bc4 Bh3 Ne6 Qf8 Bb3 Nd8 Bc4 Nf7 Bb3 Bb6+ Kc6 Ba7+ Kd7 Nd8 Bc4 Kg6 Bb3 Qf3 Ke8 Kf6 Kf8 Bf5 Bd5 Bc2 Qd3 Qg2 Ng5 Rb1 Ke8 Nf7 Rc4 Qg1 Qe4 Rgd3 Qe3 R3d2 Rc3 Qf1 Bc4 Nd8 Bf7 Nc6 Ne6 Ba4 Rf8 Kf5 g8N Rdb2 Nh6+ Kf6 Nf5 Rb5 Rg8 R1b3 Nec5 Rh7 Be6 Rd7 Kf8 Re7 Bf7 Rd7 Ne6 Rd8+ Be8 Rb8 Rg1 Nd8 Bf7 Ra8 Bg8 Rb8 Rg6+
1nBN2R1/5b2/4Nr1p/1p3Pn1/rP3K1P/BqQ1r1Nb/1Nkp1b2/B2bB3 b - - 1 2 legal: proof: b4 c5 a4 f5 d4 cxd4 e4 g5 f4 b5 a5 Qb6 axb6 Bh6 Ra3 Bg7 Rf3 Na6 exf5 Bf8 f6 Nb8 f5 Nh6 Rf2 Ng8 Rf4 gxf4 Ke2 Kf7 Kf3 a5 g4 e5 h4 d5 c4 h6 c5 d3 g5 a4 b7 a3 c6 d4 c7 a2 Nd2 a1Q Qb3+ Be6 c8N Qa2 Nc4 d2 Ne2 d1B Ne7 d3 Bg2 d2 Qc3 Ra4 Nd5 Bc5 Nb2 Bf2 Nc7 Qb3 Rg1 e4+ Kg4 f3 Ng3 e3 Kf4 Bd5 Ne6 e2 Bh1 e1R g6+ Ke8 g7 Kd7 f7 Kd6 Bg2 Nf6 g8N Nh7 Ne7 Re3 f8B Ng5 Bg7 Rf8 Nc6 Rf6 Ncd8 Bc4 Bh1 Kd5 Bh8 Be1 Rg2 f2 Bg7 f1B Bh8 Na6 b8B Bf2 Ba7 Nb8 Rg1+ Kd6 Bb7 Bh3 Bc8 Kd5 Ne2 Nh7 Rg8 Ng5 Ng3 Bce2 Nd3 Bh5 Ba3 Bf7 Qc7 Rg6 Ba1 Rf6 Bc5 Kc4 Nb2+ Kc3 Qe5+ Kc2 Bb6 Re2 Bd4 Bg1 Bf2 Re3 Be1 Bf2 Qc3+
R1RK1Rrr/4pq1N/p1Bbk3/n2Q1Rn1/P2n4/bbPNPnN1/5pN1/8 b - - 1 2 legal: proof: g4 g5 f4 gxf4 g5 c5 g6 d5 Na3 d4 Nb1 d3 cxd3 c4 Kf2 c3 Ke1 h6 bxc3 Qd5 Ba3 Qc6 Bc5 Qf3 Bd4 Qd5 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Kf3 b5 Kg4 b4 Kf5 g4 h4 b3 g7 f3 h5 f6 e3 g3 h6 b2 h7 f2 d4 g2 d5 Qa5 d4 Ba6 Ne2 g1B Ng3 Qa4 d6 Bh2 d5 Nc6 Nd2 b1N Nc4 Na3 Nb2 Nc4 Nd3 Qb3 Bg2 N4a5 Rf1 Nd4+ Kg6 f5 Kf7 Nf6 g8N Ne4 Nf6+ Kd8 a4 f4 d7 f3 Bh1 Kc7 d8N Kd6 Ne6 Bc4 Nef4 a6 Ng2 Bh6 Qd2 Rhg8 h8R Bf4 Nh7 Kd7 Rab1 Bd6 Rb2 Qa2 Rb8 Bb3 Rc8 Ba3 Rf8 Rg6 Rc8 Ng5+ Kf8 Rg7 d6 Ke6 Ke8 Rg6 Rf8 Rg8 d7 Rh8 Nh5 Bhd6 d8R Rg8 Ng3 Rb8 Rg1 f1N Qd1 Nd2 Rf1 Rb4 Ra8 Rb8 Rc8 Rh8 Kd8 f2 Rg1 Rg8 Qh5 N2f3 Rb1 Bd1 Rb5 Qd5 Rc5 Qf5 Rd5 Qf7 Rf5 Bb3 Nge1 Nh2 Bc6 Nhf3 Ng2 Rb4 Be8 Ne4 Rf4 Rb5 Bc6 Rh8 Ne2 Rg5 Ng3 Rgg8 Qc5 Neg5 Rf5 Ne4 Qb5 Neg5 Qd5+
BBB2qNn/p4rp1/3n1b2/N6b/1P2krp1/BR3nPn/P3K1NQ/1r1N4 b - - 1 2 legal: proof: d4 c5 e4 f5 exf5 b6 dxc5 b5 c4 bxc4 b4 h5 Nd2 Bb7 Rb1 Bc8 Rb3 Qc7 Rg3 Qd8 Rg4 hxg4 f4 Kf7 h4 Kf6 g3 d5 h5 e5 h6 d4 c6 e4 h7 d3 c7 c3 Nc4 c2 Na5 d2+ Ke2 e3 Qe1 d1N Nh3 Be6 c8B Ne7 Bg2 Ng6 Nf2 Bf7 Qd2 Nd7 Ba3 c1R Rh2 Rb8 Ba8 Nde5 Qc2 Rg8 h8N Rb1 Rh1 Be8 Nf7 Rb7 Nh6 Be7 Re1 Rf8 Ng8+ Kf7 f6 Nc4 f5 Nh8 Qd2 Nd6 Qc2 Rc7 Rh1 Rc4 Qb2 Rf4 Qd2 Nb2 Nd1 Nd3 Re1 Nf2 Rf1 Nh3 Rf3 Bd7 Qb2 Be6 Qc2 Ke8 Qb2 Bf7 Qc2 Bh5 Qd2 Qd7 f7+ Kd8 f6 Kc7 Qb2 Qd8 Qd2 Nb7 Qb2 Kd6 Qc2 Ke5 Qh7 Re8 f8B Nd6 f7 Bf6 Be7 Kd4 f8N Ke5 Ne6 Rf8 Qc2 Rf7 Qd2 Qf8 Bd8 Rb3 Bc7 Rb1 Bb8 Kf5 Nc5+ Ke5 Nd3+ Kd4 Ne1+ Ke5 Kd3 e2 Ng2 e1N+ Ke3 Rd7 Qc2 Rf7 Ke2 Kd4 Rb3 Nf3 Qd2+ Ke5 Qe1 Kd4 Qg1+ Ke5 Qh2 Kd4 Nb7 Ke4 Na5+
1B1N4/q1Npp1PB/1N1nRnk1/p1qbPN2/rr2PB2/1n1nb3/3BK3/1Q6 b - - 0 1 illegal: No proof kernel
3BbR2/2Pp2R1/K1nN3R/n1q1r3/P1p2pbb/4k1nN/1pP4Q/1R3NrN b - - 0 1 illegal: No proof kernel
3rn2b/3R4/Rpn1BB1r/p1qN1PbB/4Ppb1/2q2P1k/B3Rp1R/1Q5K b - - 0 1 illegal: No proof kernel
5rn1/1b4k1/6Bp/1p1b3P/1bp3N1/1RB1RqbP/R1PKB1Rp/Q2n2Bb b - - 0 1 illegal: No proof kernel
2RRn2k/P1RN1B1r/2b4q/R1KnP3/qNp3R1/b1b2Pr1/3R1B1b/7r b - - 0 1 legal: proof: c4 a5 e4 f5 d4 h5 b4 axb4 g4 d5 cxd5 e5 gxh5 Bc5 Qd3 Qd6 dxe5 Qe7 e6 Qd8 e5 Bf8 Qe4 fxe4 Kd2 g5 Ke3 b5 Kd4 c6 a4 b3 h4 e3 d6 b2 f3 e2 a5 e1B a6 g4 d7+ Ke7 h6 g3 a7 b4 h5 g2 h7 b3 h6 Qa5 d8R Bd7 Nc3 b1R Nh3 g1B+ Be3 b2 Na2 Nf6 Bf2 Na6 Rh2 Nb4 Ng5 Qa4 Kc5 Bc3 Ne4 Nbd5 Nb4 Ne8 Nf6 Rc1 Ra3 b1Q Bc4 Qg6 Ra2 Rg8 h8R Qh5 h7 Qh6 Bb3 Rg3 Rg8 Ra1 Rg2 Bh2 h8R Rh1 Rg4 Rc8 Rd2 Rc7 Rg1 Rb7 Ra1 Rc7 Bc2 Rb7 Bg6 Rc7 Bf7 Rb7 Kc4 c5 Rh7 Bc6 Nd7 Rc7 Kd3 c4+ Ke4 Bb2 Rhg7 Ba3 Kd4 Bb2+ Kc5 Bc3 Rc8 Qc2 Nb8 Rb7 Nd3 Rb3 Ra5 Bb7 R7g6 Nef6 Be8 Ba8 R6g5 Rb7 Kc6 Bg7 Rf5 Kf8 e7+ Kg8 Bh5+ Kh7 e8R Bf8 Red8 Ba3 Nb4 Qa4+ Kc5 Ne8 Rf7+ Kh8 Re7 Rd7 Bg6 Bc6 Bh5 Rd6 Rec7 Rd7 Bg6 Rf7 Nd7 Rh7 Bf7
Rbn1qb2/BP2N3/k3pKn1/2nbP3/1qPBBB2/2B1r3/r1BR3q/2n4N b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h5 g4 hxg4 Qd4 g3 Qg4 fxg4 Kd2 d5 Kd3 Kd7 Kd4 Kc7 Ke5 Kb7 e4 g5 b4 a5 c4 g2 h4 d4 f4 a4 b6 g3 f5 e6 h5 g4 f6 a3 f7 d3 b5 d2 h6 d1Q h7 a2 Nh3 g1N Nf2 g2 Bf4 g3 Rh2 Ne7 Kf6 Qb3 Bd3 Nh3 Bc2 g1B Nc3 g2 Nd5 Na6 Nh1 Rg8 h8B Qe8 Bg7 Qb4 Bh8 Rg3 Bg7 Ng6 Ne7 Re3 Bh8 Nf2 Bg7 Ra7 c6+ Ka8 c7 Kb7 Bh8 Nc5 Bg7 Bd7 Bh8 Bc6 c8B+ Ka8 Bd7 Bd5 Bc8 Ra5 b7+ Ka7 b6+ Ka6 Bd7 Raa3 b8B Ra5 b7 Ra4 Rf1 a1N Bc6 Ra2 Ba7 Nab3 Ra1 Nc1 Bg7 Na4 Bd4 Nb6 Bh8 Nc8 Bc3 Bh6 f8B Nfd3 Bfg7 Bf2 Bd4 g1Q Ba7 Bg3 Rd2 Qd7 Kf7 Qd8 Bc3 Nc5 Bhd4 Bf8 Kf6 Bh2 Bh6 Bc7 e5 Qh2 Bg5 Bb8 Bf4 Bf3 B6e4 Qe8 Bf5 Bc6 Bfe4 Bd5 Ng8 Ka5 Ne7 Ra4 Ra3 Bd6 Bb8 Kb6 Rb3 Ra2 Ra3 Bc7 Ra8 Bd6 Ba7+ Ka6 Bb1 Bb8 Bbc2
1B2n2r/3r4/P1q1n2R/1b1pkBB1/6B1/3Pn1RP/qbB2B2/1qrNKnN1 b - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 h5 g4 f5 exf5 hxg4 Qf3 Ra7 Qa3 Ra8 Qb4 cxb4 f4 Kf7 c4 Kf6 a4 e5 a6 g5 c5 b5 d3 d5 a7 e4 h3 e3 a5 b3 c6 g3 a6 b4 c7 g2 Kd1 b2 Be2 b3 Bf1 e2+ Kd2 e1N Ra4 g4 Rd4 g3 Nc3 b1Q Nd1 b2 Be2 Bd7 c8B Qe8 Bg4 Nc6 Rc4 Nd4 Rc6+ Qe6 Rh2 Rb8 a8B Qa2 Rd6 Rb4 Bc6 Bg7 Ba4 b1Q+ Bc2 Rb7 Rb6 Bb5 Bd7 Kf7 f6 Qc6 f5 Ne6 Ke2 Ra7 Bg5 Rc7 Bc8 Rd7 Kd2 Nf3+ Ke2 Ne5 Ke1 Nc4 Rh1 Ne3 Rh2 Kf8 f7 Nf6 Rh1 Ke7 f8B+ Kf7 Bc5 Ne8 f6 Kg6 f7 Bb2 f8B Kf7 Bf4 Kf6 Bg5+ Ke5 Bfh6 Nf5 Bf2 Ne3 Ne2 g1N Bf8 g2 Bc5 Qa8 Rd6 Qc6 Ba7 Nd8 Rh6 Ne6 Nc1 Ne2 Rg1 Ng3 Ne2 Ngf1 Bf5 Nd4 Bg4 Rdh7 Bcf5 Rd7 Rh1 g1R Rh2 Rg3 Rg2 Ne6 Ng1 Rf3 Rg3 Rf4 Bb3 Rc4 Ba4 Rc1 Bb3 N6c7 Bc2 Ne6 Bb8+
NbbB4/1R1p1n1b/pRRPRnkq/4r2P/6P1/b1r2N1K/2R1BR2/2br4 b - - 0 1 illegal: No possible last move, all moves rejected
1kb4n/b1BqPp2/Bp1r4/2NN1b2/B1bP2RB/1B3r2/nPB3q1/3KbR2 b - - 0 1 illegal: No proof kernel
1b1K1nBB/1R3Np1/5R1B/1pnPr2p/3r2Pr/qk3q2/N2P1p2/3BB1Bb b - - 0 1 illegal: No proof kernel
R1BbbK1B/k1qP2rN/qR2rR1B/5rR1/P4q2/1B3n2/r4P2/5nqN b - - 0 1 legal: proof: e4 f5 exf5 a5 c4 h5 g4 d5 cxd5 g6 b4 axb4 fxg6 Ra6 g5 Ra8 Qg4 hxg4 Ke2 Kd7 Kd3 b5 Ke4 c5 Ke5 Kc7 d4 Kb7 h4 b3 g7 b2 h5 b4 a3 c4 g6 g3 d6 b3 h6 c3 d5 c2 h7 g2 d7 Nh6 Ke6 Nc6 g8R Nf5 Kf7 e5 g7 e4 d6 e3 Ne2 g1Q Nd4 e2 Bh6 c1Q Nc3 e1R Bb5 b1Q Nd5 b2 Nf6 Ng3 Nf5 Ka7 Ba6 Qd3 Rb1 Nf1 Ng3 Qc7 a4 Nd4 Rh5 Re6 Nh1 Be7 d8R Bd7 Rg5 Nf3 Rb8 Qf4 Rgf8 Rg8 h8B Bd8 Bc8 Qa6 Rb6 Qe4 Nh7 Qf4+ Rf5 Rb8 Rf6 Ra8 Rc1 b1R Rc5 Ra1 Rg5 Ra2 Re8 Bb5+ d7 Bc4 Kg6 Rf8 g8B Bd3+ Kg7 Bg6 Re7 Be8 Rb8 Re3 Bb3 Re6 Rb6 Rf7+ Kg8 Rg7+ Kf8 Re5 Ree6 Rf5 Rb5 Rb8 Rb4 Rbb5 Rb6 Rbe5 Rb8 Re1 R4b6 Re6 Ra8+
R7/5n2/Np1PrP1q/4rn2/2BN1q2/1Kp1R1PR/r2p2qk/1BB1RB1b b - - 0 1 illegal: No possible last move, all moves rejected
R1rb2q1/1P1R1p1n/1nn1BBB1/7P/4qNnk/3B2p1/2N2Pp1/R1KR1q2 b - - 0 1 legal: proof: g4 a5 a4 h5 c4 hxg4 b4 b5 c5 e5 d3 d6 c6 Bb7 cxb7 c5 axb5 c4 b6 a4 Qd2 c3 Qe3 Ra5 Qd4 Rc5 b5 Rc4 dxc4 exd4 Kd1 Ke7 e4 Kf6 h4 g5 c5 d3 c6 g3 c7 d2 c8B c2+ Ke2 d1N Kd2 a3 h5 a2 Be6 g2 Bc8 d5 Nh3 g4 Be6 d4 Bd3 g3 Re1 Be7 Na3 Nc3 Rd1 Nd5 Nf4 Kg5 e5 Nc6 b8R Kh4 b7 Ngf6 b6 Nh7 Ra8 Qg8 b8R Bd8 b7 Nb6 Bg6 d3 Bb2 c1N Rb1 a1Q Nc2 Qa2 Ra1 Qc4 Rc8 Qe4 Rc7 Ne2 Bc3 Ned4 Kc1 Nf5 Rd7 Ne3 Bb4 Bg5 Be7 Ng4 Bf6 Qe8 Bef5 Qg8 e6 d2+ Kb2 Qg7 e7 Rc8 e8B Qh8 Be6 Qg8 Re1 d1Q Rf1 Qd2 Rfd1 Qde1 Kc1 Qf1 Rd2 Nb8 Bb5 Nc6 Rd8 Qee2 Bbd3 Qe4 Be5 Be7 Rd7 Bd8 Bf6+
R1b2r2/NB1q1R1r/1rn1Nb1P/5p2/2q2BRn/P4P1K/2Bb3n/1Rn1k2B b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 dxc5 e5 b4 axb4 Qd4 exd4 h4 Ke7 c4 Ke6 e4 Ke5 a3 d5 h6 f5 f3 b5 Kf2 g5 Kg2 b3 h7 b2 c6 d3 c5 Kd4 c7 d2 c6 Ke3 h5 b4 h6 g4 e5 b3 e6 d4 e7 d3 e8R+ Ne7 Ra2 g3 Be2 Qd7 Rh2 Bg7 Bd1 Bf6 Nc3 b1Q Rh5 b2 Rd8 Qc2 Nb5 b1R Na7 Ng6 Ne2 Rb6 Nf4 Qc4 Rf8 Nh4+ Kh3 Kf2 Rg5 g2 Rg4 g1B Rf7 Ke1 Bc2 d1N Rb2 d2 Rb1 Nc3 Ne6 d1N Bf4 Rf8 h8R Be3 Rhg8 Ne2 Rh8 Bd2 Rhg8 Ba6 c8B Nc1 c7 Ne3 Bb7 Nc6 c8B Nf1 Rh8 Nh2 Rhg8 Bb5 Ba6 Ba4 Bcb7 Rac8 Bb5 Rc7 B5a6 Qe4 Be2 Qc4 Bf1 Bb5 Bg2 Ba6 Ba8 Bc8 Bh1 Qe8 Rh8 Re7 Rhg8 Qd7 Bb7 Rd8 Rff8 Rh7 Rf7 Rf8 Bd6 Re8 Ba8 Bb7 Bf4 Rc8 R8g5 Rch8 Rg8 Ba6 Rb8 Bc8 Bb7 Rf8 Ra8
1q4n1/P1p1r1R1/R2B1N2/2PB4/1qN1Rq1r/1k1bp3/P2b3B/KBrnn2R b - - 0 1 illegal: Other
3N2rq/B5pq/1N1b2Rb/2rB2R1/3nn2r/1n1pKRP1/R1PP1n2/1k3NN1 b - - 1 2 legal: proof: b4 c5 a4 b5 e3 h5 g3 e5 Qf3 h4 Qd5 h3 Qg2 hxg2 bxc5 b4 f3 Ba6 f4 Bb5 axb5 exf4 Kf2 Ke7 h4 a5 h5 d5 h6 f5 h7 d4 c6 Kd6 c7 Kc5 c8R+ Nc6 b6 d3 b7 b3 b8N Kb4 e4 f3 e5 a4 e6 a3 e7 f4 e8R b2 Re1 a2 Rh4 Nf6 Rh3 Bd6 Re6 Ng4+ Ke1 f2+ Kd1 f3 Rh5 Nd4 Nc3 Ka3 Rb5 Rg8 h8N Ra5 Rbe5 Rc5 Nd5 Qh4 Rc7 Qh7 Nf7 Qh8 Nd7 Qh7 Rb1 a1N Rg6 Ka2 Ne3 Nab3 Reg5 Qh8 Nb6 Qh7 Nh3 g1B Bg2 Qh8 Nd8 Qh7 Nf5 Qh8 Re7 f1Q+ Re1 f2 Ne3 Qh7 Bd5 Qg2 Nf1 Qh1 Re3 Qh8 Nf4 Q1h7 Nh3 Nf6 Rf3 Ne4 Ne3 f1N Ke1 Nh2 Nf1 Be3 Ng1 Ng4 Rgf6 Ngf2 Rfg6 Ka3 Ra1+ Kb4 Rh5 b1R Ra2 Bh6 Rhg5 Rb2 Ra5 Ra2 Bb2 Ra4 Bc3+ Ka3 Ra7 Ne6 Bd4 Ka2 Be3 Kb1 Ra8 Rd4 Ra2 Rc6 Na4 Rb4 Ba7 Ned4 Nb6 Rc5 Ra6 Nc3 Rf8 Ne6 Rff5 Nh3 Ra5 Rh4 Ra2 Ned4 Rff6 Nf4 Kf2 Ne4+ Ke3 Nh3 Rf4 Nhf2 Rf3
2R2B1R/pqBbnK2/qB6/1N1R2rR/B2q2kb/1r1p1N2/rP1P1P2/1n1r4 b - - 0 1 illegal: No proof kernel forced: bxDB
1kbR1r2/n2nb3/6r1/KN1bRp2/pBBBN1r1/P4Pr1/1nPRr1BR/8 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 g4 h5 g5 f5 Qe2 Qd6 Qg4 Qf6 gxf6 hxg4 h4 Kd7 d4 Kc7 Kd2 e5 Kc3 a5 h5 b5 h6 g5 f7 e3 d5 e2 h7 e1R a3 b4+ Kc4 a4 Kb5 e4 c6 g3 f3 g2 Rh2 e3 Ne2 g1R Nf4 e2 Rh1 g4 Bd2 g3 Bg2 b3 Nc3 b2 Nh5 b1B Nf6 Nd7 d6+ Kb8 Rh2 Ra6 Nfe4 Be7 f8R Ba2 Rd1 Bd5 Re8 Rb6+ Ka5 Rb4 Bh3 g2 Nb5 Rc4 Bb4 Rd4 Ng3 Rg4 Rd2 Rc1 Rd8 e1N Re8 Nd3 Ne4 Nb2 c7+ Ka8 Rd4 Rce1 Rd3 Re2 Rd2 Bd8 Re6 Ne7 Re5 Rf8 h8B Nf6 d7 Nc6+ Kb6 Na7 Ka5 Be7 d8R Nd7 Bf6 Ra1 Bh8 g1R Bf6 R1g3 Bg2 Rg1 Bh8 Nb8 Bg7 Bce6 c8B Nd7 Bh8 Kb8 Bf6 Nb6 Ba6+ Bc8 Nc7 Rg6 Bc4 Nd7 Nb5 R3g4 Re6 Rg3 Bd4 R3g4 Re5 Rg3 Bh3 R3g4 Bf1 R1g3 Bg2
1q1R1n2/1k1qrR2/PP2pn2/4pqN1/1KB1P2n/2Rp2BN/1BBb4/1r1bR3 b - - 0 1 illegal: No possible last move, all moves rejected
K4bq1/4p1r1/bP2Rq2/1N1p4/Pr1RBN1R/1k1rPR1p/1n1N3n/3nN1B1 b - - 0 1 illegal: No proof kernel
2bbRqN1/2b1R3/R1pRBBnP/2rq4/3nkN2/1r1pbpB1/2PP4/B1K5 b - - 1 2 legal: proof: g4 e5 f4 f5 a4 h5 e3 b5 axb5 exf4 gxf5 Rh6 Qf3 Rh8 Qg4 hxg4 Kd1 Kf7 h4 Kf6 b4 Ke5 h5 g5 e4 a5 b6 d5 f6 g3 h6 a4 b5 d4 f7 f3 b7 d3 b6 g4 Ne2 g2 Nbc3 g1Q Nf4 g3 Bb2 g2 Ncd5+ Qd4 Kc1 g1B Nf6 a3 Bh3 a2 Be6 Be7 f8R Be3 Re1 Nc6 b8B Ra3 b7 Rb3 Re8 Bd6 Re7 Qf8 Rd7 Nge7 Ng8 Rh7 Ba7 Rh8 b8B Ng6 Rd8 Be7 Rd6 Bd8 Bb6 Rh7 Ba5 Rf7 Bac3 Rf5 Rb1 Nce7 Ba1 c6 Rb2 Rg5 Rb1 Nf5 Rb2 Ra3 Rb6 Rb3 Bcb2 Rc3 Bc7 Qd5 Ra6 Kd4 e5 Ke4 Bd7 Ra3 e6 Rb3 Bf6 Nd4 e7 Rf5 e8R+ Re5 Bc3 a1B Be6 Bb2+ Kd1 Ba3 Ba1 Bb4 Kc1 Ba5 Bb8 Bac7 Rg1 Nh8 Rg7 Ng6 Rh7 Qb5 Rhe7 Rc5 Ra8 Qc4 Ra6 Qd5 Nh3 Qe5 Rd5 Bb6 Bd6 Qg5 Bg3 Bbc7 Rd6 Qd5 Nf4
rN6/3B1Pb1/1pR2nbp/pP4qr/B2R1B2/p6P/KNRnrB2/1R2b2k b - - 0 2 legal: proof: d4 f5 g4 e5 gxf5 b6 dxe5 b5 a4 bxa4 Qd6 Na6 Qc6 Nb8 Qb6 cxb6 Kd1 Ke7 f4 d5 e4 g5 c4 a5 Kc2 a3 Kb3 h6 h3 g4 f6+ Ke6 f7 g3 f5+ Kd7 e6+ Kc6 f6 g2 e7 d4 e8R d3 c5 d2 e5 Kd5 c6 Ke4 e6 d1R e7 Rd6 c7 Bf5 c8R Qc7 Nd2+ Kf4 Ra2 Kg3 Ne2+ Kf2 Nd4 g1B Nc4 Bd3 Nc6 Bb1 Bf4 Bh2 Red8 Na6 e8B Rd5 Nb8 Qe5 Bd7 Bg6 Rc6 Bg7 f8B Qg5 f7 Bg3 Bc5+ Kf3 Bf2 Nf6 Be2+ Kg2 Rb1 Re8 Bd1 Ree5 Be6 Rd2 Rd4 Rde2 Bd7 Nc5+ Kc3 Re7 b4 Qe5 b5 Nce4+ Kb3 Kh1 B2e3 Be1 Bf2 Re8 Rab2 Nd2+ Ka2 Qh5 Ba4 R8e5 Rc2 Qg4 Rcc1 Rh5 Nb2 Qg5 R1c2
2r2R2/pPNR3p/Ppb1N2b/3B1prN/2n1r1B1/B2kn1p1/B2q2P1/1K1N4 b - - 0 2 illegal: No proof kernel
2BN1Bb1/q2Rp1pN/5pNp/5PP1/5rp1/3NR2k/n3KbPr/1RrRb3 b - - 1 2 illegal: Other
Q7/BP6/4B3/1PB4Q/2Knb2n/PN2bb1n/1Qnq1Bb1/RB3k1r b - - 0 1 legal: proof: c4 b5 b4 g5 h4 f5 hxg5 c5 e4 a5 exf5 d5 cxd5 a4 Nc3 a3 d4 Ra6 Rb1 Rb6 Rb2 axb2 dxc5 Qd7 cxb6 Qd8 Nb1 Nd7 Nd2 Nb8 Nc4 bxc4 b5 c3 Ke2 Kd7 Kd3 Kd6 g4 Ke5 f4+ Kd6 a3 Kc5 f6 h5 g6 e5 d6 c2 g7 b1B f7 h4 b7 h3 g5 h2 f5 Ne7 g8B Ng6 f6 Bh3 d7 Bh6 Nf3 Bg2 Nd4 Nc6 Be3 c1N+ Kc3 e4 Bd3 Rh7 Bf2 e3 Qf3 e2 f8B+ Nge7 f7 e1N g6 Be3 g7 Ne2+ Kb3 Nf4 Be4 Qa5 d8Q Qd2 Qa8 Bd3 Bg6 Be2 Qg4 Bef3 Bf5 Rh4 Qh5 Kd5 Bc2+ Nf5 Bc5 Be4 Bb6 Bgf3 Rg1 h1B Ba7 Bhg2 f8B+ Ke5 Bc4 Rh1 g8Q Nh3 Bfc5 Kf4 Qg7 Bg4 Be2 Nh4 Bc4 Be2 Be6 Bg4 Nf5 Kf3 Kc4 Ke2 Qb2 Bg4f3 Rf1 Nd3 Rb1 Ne1 Nd4+ Kf1 Nb3 Nd4 Rd1 Nc6 Ra1 Nd4 Bb1 Nec2 Bc8 Ng5 Bf5 Nh3 Be6
2Q3bQ/5N2/3BKnP1/1QQN3Q/1NPq1bpn/2bb1k1P/7p/1q2b2R b - - 0 1 legal: proof: f4 c5 d4 a5 a4 b5 axb5 e5 dxc5 d5 e3 d4 e4 Ra7 Bc4 Rd7 Bf1 Rd5 exd5 Ba6 Bd2 Bb7 Bc1 Bc8 h3 h5 Qg4 g5 Rh2 e4 Qe2 g4 Qd1 g3 Rh1 Rh6 Na3 Re6 Nb1 Re5 fxe5 Bd7 Qg4 Be6 Qd1 Bc8 b4 Be7 Rh2 gxh2 g4 Bg5 Be2 Be7 g5 Bd6 Bg4 hxg4 Nd2 Qc7 Bb2 Ke7 Ne2 Qd7 Kf2 Qc6 Qh1 Bb7 Re1 Qe8 Nb1 Qd8 Bc1 Nf6 Qf3 Ke8 Rh1 Ng8 Ke1 Bf8 Ng1 Ba6 Qd1 Bc8 Kf2 Kd7 Kg3 f5 Kf4 e3 c4 d3 b6 d2 b7 e2 d6 Kc6 e6 e1B Ke5 a4 d7 f4 e7 f3 e8Q f2 b5+ Kc7 c6 f1Q Ne2 a3 Nec3 a2 Qh5 a1B g6 Nf6 Ba3 Bh6 Ke6 Bf4 Na2 Bc3 Nb4 Qd3 Qe2 d1B Qe3 Bc2 Qee5+ Kb6 c7 Nc6 b8Q+ Bb7 c8Q Ne7 Qa8 Nf5 Qa4 Qh8 d8N Nh4 Nf7 Qd4 Qeg5 Bd3 Qaa8 Qh7 Qh8 Qh6 Qac8 Bc6 Qe5 Qg5 Qec7+ Kc5 b6 Qf5+ Ke7 Qf2 b7 Kd4 b8Q Ke3 Qb5 Bd5 Qcb6+ Kf3 Q6c5 Bb2 Nc3 Qd4 Nc2 Ba1 Nb4 Be6 Ncd5 Bac3 Nd8 Bg8 Nf7 Bb1 Qcb8 Qc2 Ke6 Qc1 Q8b7 Bd3 Qbc8 Qb1 Bc1 Bg5 Bf4 Bh6 Bb8 Bf4 Bd6
3Q1b1r/5Pqp/r2p2bN/N4NKP/Qr1p2b1/k1P5/2QB4/1R3NNn b - - 0 1 legal: proof: b4 a5 g4 c5 bxc5 b5 a4 f5 gxf5 Ba6 axb5 Bb7 Ra4 Bc8 Bg2 e6 Bd5 exd5 Rb4 Nc6 c3 Ne5 d3 Nc4 dxc4 axb4 Kd2 Ke7 Ke3 g5 f4 d6 h4 g4 h5 b3 f6+ Ke6 c6 g3 c5 b2 c7 g2 f5+ Kd7 Kf4 d4 e4 Ra6 e5 Qe7 b6 Kc6 e6 Kb5 b7 Ra3 b8N Kc4 c6 Bd7 c8N Ra7 c7 Kb5 f7 Qd8 e7 Ka5 e8Q Nh6 f6 Bg4 Ne7 Ra8 c8N Qc7 Ng8 Qb6 Kg5 Qc6 Nd2 b1B Nce7 Qd7 Qc2 Ra6 Nf1 Nf5 Bd2 Ng3 Nf5 Qe7 Ngh6 Qc7 Rh3 Nh1 Nc6+ Kb5 Na5+ Qd7 Qb2+ Ka4 Qc2+ Ka3 Re3 Qb7 Re1 Qe7 Qd1 Be4 Qc2 Qe5 Rb1 Qg3 Nh3 g1R Qc6 Rg2 Ng1 Re2 Qd7 Bd3 Qc6 Re8 Qa8 Rb8 Qc6 Rb4 Qb5 Be7 f8Q Qe5 Qfe8 Bf8 f7 Qg3 Qd8 Be4 N5e3 Bg6 Nef5 Qe5 Qc6 Qg7 Q6a4+
3B3Q/q1Rr2P1/1P3n1b/b1QPr1kq/2rr2Rq/1bn3Q1/3R3R/1RK4N b - - 0 1 illegal: No possible last move, all moves rejected
4rbr1/1Q3n2/2bP4/k1RQ1bb1/2qP2Pq/K2b1n1B/5N1B/2BbQQ1Q b - - 0 1 illegal: No possible last move
Q5b1/1R1PB3/rR1RPrNq/1PKb1Q2/5bR1/Q5n1/2p1qnnk/5rR1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 g6 axb5 Bc5 c4 Bf8 Bh3 Ba6 Nc3 Bc8 Ne4 Qf6 Ng3 Qd8 Nf5 gxf5 g5 d5 Bg4 hxg4 cxd5 Rh3 Ra2 Rh7 Ra1 Rh8 Kf2 Ke7 Ke3 c5 h4 a5 d4 f4+ Ke4 f5+ Kd3 c4+ Kc3 f3 b4 f2 e4 f1Q g6 f4 g7 g3 b6 a4 b5 f3 Kb4 g2 e6 Kf6+ e7 a3 d6 c3 e8Q c2 d5 f2 h5 a2 e5+ Kf5 h6 Ra6 h7 Nd7 b7 Ngf6 g8R Ng4 b8R Ne3 Qdh5+ Kf4 Qhg6 Qb6 Qgf7+ Nf6 Qee7 Bh6 d7 Bb7 d8R Qe2 d6 f1B Ba3 Bd5 Nf3 g1N Rb7 Ng2 Nh4 Nh3 Rg1 Nf2 Ng6+ Kg3 d7 Kh3 Rdb8 N6e4 Rd1 a1R Qf5+ Kh2 Rg7 Re8 h8Q Rf8 Rd3 Bg8 Rd6 Ng3 e6 Qbe3 Rbb6 Rf6 R8b7 Qg5 Qf8 Qgh5 Qe7 Bf4 Kc5 Qh6 Qf8 Nh4 Bb4 Bg2 Qa8 Rf1 Qa7 Bf7 Qha8 Bd5 Rg8 Ng2 Rg7 Raa1 Qa3 Ra2 Nf8 Bg8 Rg4 Raa1 Ng6 Ra2 Qc1 Ra6 Qa3 Rf8 Bc3 Rf7 Bf6 Rf8 Bd8 Rf6 Be7
2Q2Qbk/1nP1r3/n1R2r2/pK5P/4B2Q/1Rb2N2/qrb3PQ/Q1Rb2b1 b - - 0 1 illegal: No proof kernel
Rbr2b2/Pr4qk/2Pn1B2/K2b2R1/b1R2R1n/PR2bp2/Q1Q1Q3/1N4q1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e6 dxc5 a4 f5 a3 bxa3 Nh6 a4 Ng8 a5 Bd6 Bh3 Be7 Bf1 Bf8 e4 Ra7 e5 Ra8 Bd3 Rh6 f6 Rh8 Bf5 exf5 e6 Ne7 Nc3 Qc7 Nb5 Ng8 e7 Qb6 Nd4 Qd8 Ne6 fxe6 Be3 Kf7 Bd2 Qe8 Bc1 Qd8 Kd2 d5 Kc3 b5 Kb4 g5 e8R d4 h4 g4 c4 d3 a6 d2 a7 e5 a3 f4 h6 Kg6 h7 f3 f7 g3 Re7 g2 c6 e4 c7 e3 c5 e2 c6 e1B Ra2 Be6 c8R Qd4+ Ka5 b4 Bb2 b3 Rb7 Nf6 Ne2 g1B Nc3 Ne4 Nb1 Bg3 Qc2 Be3 Rg1 Qg7 Bf6 b2 Rb3 d1B h5+ Kh6 Ra1 Nd6 Rg2 Bgf4 Rg5 Nd7 Ra2 Rg8 Qe2 Ne5 h8Q+ Qh7 Ra1 Rg7 Qg8 Bd5 Ra2 Ng6 Rd8 Be7 f8R Nh4 Qe6 Rb8 Rf7 Rb7 Ra8 Rg8 Qf5 Rgb8 Qfc2 Rc8 Ra1 Qg6 Rf8 Kh7 h6 Bh2 Rf7+ Kg8 Ra2 Qg7 h7+ Kh8 Bd4 Bf8 Rf4 Bg3 Bf6 Bh2 Nd2 b1Q Ra1 Qb2 Rc1 Qa1 Qa2 Bg3 Rcc4 Qc1 Nb1 Bc2 Rbc3 Ba4 Rb3 Qg1 Bd8 Qg6 Qec2 Kg7 Bf6+ Kh6 h8Q+ Qh7 Qg8 Qg7 Qe6 Bh2 Qc1 Kh7 Qcc2+ Ne4 Rff5 Bb8 Qe5 Nd6 Rff4+ Kg8 Qeb2 Kh8 Qe2 Kh7 Qbc2+
k1n3B1/1rQ2b1q/1N1r1Qq1/3bP3/1Pr1p1PR/4B2K/2Bn2B1/2b2QbB b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 axb5 g5 d4 e5 h4 Bg7 hxg5 Ke7 Ra3 Kf8 Rd3 Ke8 Nc3 Bf8 dxc5 Ke7 Rd4 exd4 e5 Ke8 Ne4 fxe4 g4 d5 f4 Kd7 Kf2 Kc7 Kg3 Kb7 c4 h5 g6 a5 b6 a4 g7 d3 f5 d2 f6 d4 f7 a3 Bd3 h4+ Kh2 a2 Bb1 a1B Ba3 h3 Bc2 d3 Bc1 Bd4 Ne2 Qd6 Nc3 Be6 Na4 Bd5 Qf1 d1B Be3 Ne7 g8B Ra7 c6+ Ka8 c7 d2 c8B Na6 c5 Qg6 c6 Nc5 c7 Bh6 f8Q Nb3 Ba6+ Nc8 Be2 Rb7 Bf3 Bg5 Kg3 h2 Qf6 Be2 Bg2 d1R Bf3 Bh6 Kh3 Bec4 Bg2 Nd2 Bf3 Na7 c8B Ba2 Bd7 Nc8 Bb5 Bf7 Bbe2 Bad5 Bg2 Rc1 Bef3 Rh7 Bb3 Rc4 Bbd1 Rd7 Bc2 Rd6 b7+ Ka7 Nb6 Kb8 Rg1 h1Q+ Kg3 Qhh5 Rh1 Qhf5 Rh4 Bg5 Bf4 Bg1 Kh3 Rg7 Bh1 Qh7 Be3 Qfg6 Bc5 Nb1 Bfg2 Bc1 Be3 Nd2 Qg5 Kc7 b8Q+ Kc6 Qa8+ Kc7 Qa5 Kb8 Na4 Kb7 Qc7+ Ka8 Qgf6 Bfe6 Qc5 Rb7 Qc7 Bf7 Nb6+
QKR5/3rP2n/1np2N2/BP2pq2/5Q1Q/1Q2r1P1/1b2bkpn/1RQ1R1n1 b - - 0 1 illegal: No proof kernel
1K1Q4/P1rb2n1/3p3r/1N2pP2/5p1n/Nq5p/Rn2NQbP/1Bk1NQ1N b - - 0 1 legal: proof: f4 a5 b4 c5 bxa5 g6 d4 Nh6 dxc5 Bg7 f5 Be5 e3 Bf4 exf4 Ng8 a4 g5 f6 Nc6 f5 Nb8 Bf4 gxf4 Ra3 Qb6 Re3 Qd8 Re6 fxe6 Ba6 e5 Bc4 Ra6 Bf1 Ra8 Ke2 Kf7 Kd3 b5 Ke4 h5 Kd5 h4 c4 h3 g4 e6+ Kd6 b4 g5 b3 g6+ Ke8 a6 b2 c6 e4 a7 e5 a5 e3 c7 e2 c5 e1N f7+ Kf8 a6 Kg7 f8N Kh6 c6 Kg5 g7 Nf3 Ne2 Rh6+ Ne6+ Kg4 Na3 Nf6 g8Q+ Rg6 Ng5 b1B Qa2 Ne1 Nf3 Ng2 Ne1 Nh4 Bg2 Qg8 Be4 Qc4 Qad2 Ba2 Bb1 Qb3 Rf1 Rh6 Rf2 Bb7 c8N Nh5+ Kc7 Ng7 Nd6 Bc8 Ne4 d6 N4g3 Nd7 Nh1 Nb6 Qd4 Bd7 Q1d3 Rah8 a8N Nc4 a7 Nb2 Qb6 R8h7 Kb8 Qe6 c7 Bd5 c8Q Bg2 Qcc5 Qb3 Nc7 Nd1 Rf3 Be8 Nd4 Nh5 Ndc2 Rd7 Qcd4 Ng7 Ncb5 Re7 Qd8 Rc7 Rf2 Bec6 Nb4 Bd7 Ra2 Nb2 Nbc2 Rc5 Q3c4 Rc7 Nd3 Kf3 Nce1+ Ke2 Qf2+ Kd1 Nc1 Rh7 Qcf1 Rh6 Ne2 Kd2 Neg3+ Kc1 Ne2+
2R2K2/nnP3rQ/2p1r2b/p1Pq1NQ1/1nB2P2/2nQpp1k/4R3/1R1R2R1 b - - 0 1 illegal: No extended proof kernel
1K6/1p1r3B/pP5p/rkb2bP1/qBQB4/Pp2R1Q1/1bQ1p2n/nN2BB2 b - - 0 1 legal: proof: e4 c5 h4 f5 b4 g5 hxg5 d5 exd5 Nc6 b5 Rb8 Nc3 Ra8 Rb1 Nb8 Ne4 fxe4 Rb4 cxb4 Ke2 Kd7 Ke3 e5 g4 b3 d4 h6 c4 a6 f4 Ba3 g6 Qb6 d6 Qd8 d5 Nf6 c5 Bb2 b6 Nh5 a3 Qh4 f5 Rg8 f6 Qh2 f7 Rf8 g7 Qh3+ Nf3 Ra7 g8B Rd8 f8B Ng7 g5 Ne8 Qc2 Ra8 Bh7 Qg4 Bd2 Nc6 Rh3 Nb4 Be1 Qh4 Nd2 Nf6 Nb1 Ng4+ Ke2 e3 Kf3 e4+ Kf4 e2 c6+ Ke8 c7 Kd7 Re3 Nh2+ Kf5 Re8 Bg7 Rb8 Bd4 Ra8 Qc4 Nc2 Kf6 Rf8+ Ke5 Na1 Qc2 Ke8 Qc4 Bf5 d7+ Ke7 d8B+ Kd7 Be7 Rad8 d6 Rf6 Qe6+ Kc6 c8Q+ Kb5 Qc2 Rd7 Kd5 Qg4 Qe5 Rf8 Qg3 Rc8 Bf8 Rc4 Be7 Ra4 Ke5 Ra5 Bf8 Rg7 d7 Rf7 d8Q Rd7 Bfb4 Qh4 Rd3 e3 Qg8 Qg4 Bf2 e1B Qf7 e2 Re3 Rc7 Kd6 Bd2 Be1 Qe4 Rf3 Be3 Qe6 Rg7 Qf7 Qe8 Kc7 Qc6+ Kb8 Qd7 Be5 Bc5 Re3 Qd4 Qd5 Qc4 Bd4 Rd7 Bbc3 Qa4 Bb4 Re7 Qg8 Rd7 Qgc4+
qr2N1n1/Nr1Nn1B1/RQ2pPPq/7N/1b1kP1b1/N4rb1/8/N2KbN2 b - - 0 1 legal: proof: c4 a5 a4 b5 axb5 g5 h4 d5 hxg5 Bg4 cxd5 Bh3 b6 Bc8 b4 f5 b5 f4 e3 f3 Be2 Ra7 Ra4 Ra6 Rb4 axb4 Qa4 Bg7 Kd1 fxe2+ Kc2 Ra5 Kd3 Ra7 Qd1 Bf8 Kc2 Ra8 f4 Kf7 g4 e1B d4 c5 e4 h5 g6+ Kf6 b7 e6 g7 c4 g5+ Kf7 d6 c3 d5 h4 d7 h3 b6 h2 f5 Qc7 d8N+ Ke7 d6+ Kd7 g6 Nh6 g8N Ng4 Nf3 Rh6 Na3 Rh8 Nf7 Kc6 d7 Kc5 d8N Qc6 Nd6 Nf6 Bb2 Rh3 Nd2 Rf3 Qb1 b3+ Kd1 Kd4 Ne8 Bb4 Nf1 Bg3 Rg1 h1Q Ba1 b2 Rg2 Ng4 Ngf6 Nh6 Nh5 Ng8 Re2 Qd5 Re1 Nc6 b8N Qa5 b7 Nce7 Na6 Rb8 Nc5 Qa8 Re3 Bd7 Re2 Ba4+ Nb3+ Ke5 Rd2 Qh3 Rd6 c2+ Ke2 c1B Kd1 Bcd2 Ra6 Rc8 b8N Bde1 Nhg7 Qh6 Nd7+ Kf4 Nc6 Rb8 Na7 Bb5 Nfd2 Ke3 Nh5 Rb7 Rd6 Bf1 Ra6 Bh3 Nf1+ Kf2 Qc1 b1R Bg7 Bg4 f6 Rb2 Qb1 Rb8 Nfd2 Ke3 Na1 Kd4 Nf1 Bbd6 Rc6 R2b7 Ra6 Bc5 Qb5 Bcb4 Qb6+
rq1RK1b1/kbP1bR1P/nQr1r3/4R3/1QB4B/2QR4/1q1P2n1/1q3Rr1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 gxh5 f5 exf5 Rh6 a4 Na6 axb5 Rh8 b6 Nb8 c4 Kf7 Nc3 Ke8 b5 Na6 Nd5 Nb8 Nf3 d6 Nb4 cxb4 c5 d5 Ne5 Bd7 Nc4 dxc4 Ra2 Be6 Ra1 Bc8 Ke2 Kd7 Ke3 e5 Ke4 g5 Kd5 a5 f4 b3 h4 c3 h6 g4 h7 c2 b7 a4 h5 e4 b6 a3 f6 b2 h6 b1B f7 a2 f5 g3 f6 e3 Bc4 g2 Rh5 g1Q Bb2 c1Q Qb3 e2 Qb4 e1R Re5 Qc7 c6+ Kd8 Ba3 Na6 b8Q Bc5 b7 Be7 Qa7 Qg6 b8R Qb2 Qab6 Bc2 Rc1 Bb3 Rc3 Qgb1 Rd3 a1R Rb7 Ba2 Ra7 Bb7 Ke6+ Kc8 f8R+ Qd8 Kf7 Kb8 Re8 Qc8 Red8 Bb3 Ke8 Re4 Rg5 Re6 f7 Ba2 f8R Nf6+ Kf7 Nd5 Re5 Ne3 Ke8 Rg8 h8Q Rg1 h7 Ng2 Rf1 Bb3 Qc3 Ra2 Qf8 Ra1 Bc5 Ra5 Bd4 Rc5 Bf2 Bd6+ Qe7 Rh6 Bb5 Bg8 Red5 Re6 Rf5 Rc4 Rf7 Nc5 Ra5 Na6 Be1 Ba3 Bh4 Rc5 Bc4 Bb4 Qb5 Ka7 c7 Ba3 Qbb3 Rcc6 Rc5 Qb8 Re5 Bc5 Qb5 Be3 Qbb3 Bg5 Qb5 Rf6 Qeb4 Rfe6+ Kd7 Be7 Ke8 Rf6 Q5a5 Rfe6 Qab6+
Br4n1/RPPQ2bQ/K4Q2/R1q5/1Qk2PQn/1b1qBB2/1br2nb1/7q b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 exf5 g4 dxc5 Ba6 Qf3 Bb7 Qd1 Bc8 f4 h5 Nf3 Nc6 Na3 Nb8 Nc4 Nf6 Ne3 gxf3 g4 Ng8 g5 Rh7 Ng4 hxg4 Bd2 Rh4 Bc1 Rh8 Kd2 Kf7 Kc3 e5 Kb4 d5 h4 f2 c4 a6 g6+ Kf6 g7 g3 h5 g2 b6 g1Q Ka5 d4 b4 e4 h6 e3 h7 d3 c6 d2 c5 e2 b5 e1Q c7 Qd3 b7 Nd7 b8Q Ne5 b6 Nf3 c6 Nh4 Be2 f1B Bf3 Be6 c8Q Bb3 c7 Bg2 Qd7 Qef1 Qe2 d1N Be3 Nf2 Qb7 Ra7 Qe4 Ba3 Qb4 Bb2 Ba8 Rb7 Qg4 Rb8 b7 Qc1 Kb6 a5 Rh3 a4 Rh2 Ng6 Rh5 a3 Ka7 a2 Kb6 Qdc2 Ka6 Qh1 Rg5 Nh4 Rh5 Nh6 g8B Qd3+ Bc4 Rhg8 h8Q+ Rg7 Bb5 Qc5 Qh7 Ng8 Rg5 Re7 Bc4 Re4 Bb5 Rc4 Bc6 Bd4 Bf3 Bb2 Rd1 a1B Rd2 Be5 Ra2 Bab2 Ra3 Bd6 Ra4 Bf8 Ra1 Bg7 Rh5 Qe7 Ra4 Kf7 f6 Rc2+ Rb5 Qdd1 Rba5 Qd3+ Qdb5 Qc5 Ra2 Kf8 f7 Ke7 R2a4 Kd6 Ra1 Qe4 f8Q+ Kd5 Qbe8 Bh3 Qf6 Bg2 Qe1 Kc4 Qed7 Qed5 R5a4+ Qb4 Ka7 Qd6 Ra6 Qh2 R1a5 Qd3 Qd2 Qe7 Kb6 Qh3 Ra7 Qh1 Ka6 Qc5 Qb4+
2r3Q1/n6p/3P2bN/2q1Q1Pk/2q2b1n/Pr1Q4/KR1NQ1qQ/RN2b1r1 b - - 0 1 legal: proof: c4 a5 h4 d5 cxd5 g5 hxg5 e5 b4 Bg4 bxa5 Bh3 d6 Bc8 e4 f6 d4 Ra7 d5 Ra6 Be3 Ra8 Bd4 exd4 e5 f5 Bd3 Bh6 Bc2 Bf8 Be4 fxe4 Kd2 Kf7 Kc2 Kg6 Kb3 c5 g4 b5 f4 b4 a3 e3 e6 e2 a6 e1B e7 d3 e8N c4+ Ka2 d2 d7 c3 a7 c2 d6 c1Q Ng7 Nc6 Nf3 Nge7 Nf5 Qa5 d8Q Rg8 Rh2 Bh6 Qe2 d1Q Nfd2 Qac5 Qa5 Bb7 Qd3 Rac8 a8Q Qe2 Q8a6 Qg2 Qe2 Q1c3 Qad3 Na7 Qab5 Be4 Qa5 Bf8 Nh6 Nf5 Qab5 Nh4 f5+ Kg7 f6+ Kg6 f7 Q3c4+ Qb3 Bg7 f8Q Be5 Qff2 Bf4 Qg1 Q4d4 Q3d3 Qdc4+ Kb2 b3 Qgf2 Kg7 g6 Kf6 g7 Kg5 Qg1 Bg6 Qa5 Rge8 g8Q Re3 Rh3 Rf3 Qh2 Rf1 Rf3 Rg1 Rf2 Rc6 Nc3 Rc8 Kb1 b2 Qb5 Qd4 Ka2 b1R Qbe8 Rb3 Ncb1 Qdc4 Qe8e6 Qh3 Rg2 Nf3 Qef5+ Kh4 g5 Kh5 Ng4 Nh4 Nh6+ Qf3 Qfe5 Bfg3 Q2e3 Rbb8+ Nb3 Bf4 Rb2 Qg2 Qf2 Qc1 N3d2 Rb3 Qff1 Q1c4 Qfe2+
5nB1/3BPNbN/5n2/1B3b1n/r1b1r1BQ/1Pk2p2/rNPqnK1B/Q7 b - - 0 1 legal: proof: d4 b5 h4 g5 a4 c5 axb5 e5 dxc5 h5 g4 Bd6 f4 Qe7 Ra4 Qd8 Rh2 Bf8 Rg2 Qb6 fxe5 Qf6 Rf4 gxf4 g5 Qd8 Rg4 hxg4 e4 Ke7 h5 Ke6 g6 a5 g7 d5 h6 f5 c6 d4 h7 f3 b3 a4 b6 g3 c7 a3 b7 g2 Qd2 a2 Qa5 a1R Nd2 f4 Qa4 d3 Nh3 g1N Kf2 Nd7 b8Q Ngf6 Qba7 Ne2 Nc4 d2 Nb2 d1B Q7d4 Rg8 h8N Ra2 Nf7 Ra6 Qab4 R6a4 Qa3 Ba6 c8B Bc4 Bd2 Rh8 g8B Bg7 Bb4 Qa5 Bd6 Qd2 Qb4 Rh7 Qa5 Rh4 Bb8 Ke7 Nhg5 Nf8 Nh7 Rg4 Bd7 Rh4 Bb5 Ke6 Bh3+ Rg4 Kf1 f2 Qa8 Ke7 e6 Rh4 Kg2 f1N e5 Nfg3 Kf2 Ngh5 Qh1 f3 Bf5 Rf4 Bg4 Bd3 Qh4 Bf5 Nc4 Re4 Qa1 Ra8 Nb2 R8a4 Ba6 Ke8 e7 Kd7 e8B+ Ke6 Beb5 Kd5 e6 Kd4 e7 Kc3 Bd7 Nd4+ Kg1 Be2 Bh2 Bc4 Bab5 Ne2+ Kf2
Q3q1b1/n1p2RN1/1n5b/3r2bb/qR2NR2/1P1P2K1/Q2bk2P/1RRrQ3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bb7 b3 Bc8 Bh3 Bh6 Bb2 Bf8 f5 h6 Be5 h5 Bf4 gxf4 g5 Bg7 Bg4 hxg4 Kf1 Bh6 Ke1 Bf8 Kf2 Kf7 b6 a5 d6 e5 d7 a4 b7 e4 d3 f3 Na3 e3+ Kg3 e2 Rb1 e1B+ Kf4 g3 Ne2 g2 Rg1 f2 Kg4 f1B Nc2 a3 Ra1 a2 Rc1 a1Q Nb4 Ne7 Nd5 Nec6 Ndf4 Rh5 Ne6 Na7 Ng7 Bd2 Qe1 Qe8 d8Q Qaa4+ Kg3 Nd7 b8R Nb6 Nc3 Be2 Ne4 Be6 Qd5 Bd1 Qa5 Bc4 Rh1 g1B Rb1 Bge3 g6+ Kg8 Rg1 Bg5 f7+ Kh8 f6 Bf3 Ne6 Bfh6 g7+ Kh7 f8R Kg6 f7 Bg4 Qa6 Kf5 g8Q Ke5 Ng7 Kd4 Rf1 Be2 Qh8 Ke3 Rf4 Be6 Rg8 Bd5 f8R Be6 R8f6 Bd5 Rc6 Bc4 Rgf8 Bg8 Qh1 Bg4 Rcc1 Ke2 Qa5 Bd8 R8f7 Rd5 Qa6 Bdg5 Qa5 Bh5 Qa6 Qd4 Qa2 Qda4 Qg1 Nd7 Rb5 Nb6 Rb4 Qec6 Kg2 Rf8 Rg4 Bh7 Rf6 Rf7 Qa8 Qe8 Kg3 Bg8 Rh4 Rf5 Rg4 Rd7 Qh1 Rdd5 Rf7 Rf1 Rgf4 Rd1 Qe1+
2n2n2/1QQBpK2/1r3P2/2qPP3/QR1Q3r/r2b2qN/1r4b1/k1B1Q1bQ b - - 0 1 legal: proof: c4 d5 cxd5 a5 a4 h5 b4 f5 g4 b5 gxf5 Nf6 Ra3 Qd6 Rg3 Qd7 Rg4 hxg4 Na3 Qd8 Nc2 Nfd7 axb5 Nf6 b6 Ng8 b5 Be6 Nb4 axb4 Qb3 Bd7 Qd1 Bc8 f4 Kd7 Kf2 Kd6 Ke3 Kc5 Ke4 Kc4 Ke5 c5 h4 g5 d4 Kc3 e4 b3 h5 b2 f6 b1B h6 c4 f5 g3 h7 g2 f7 g4 f6 g3 b7 Bd3 d6 Bh6 f8Q Be3 d7 Qb6 d8Q Ra3 d5 Qc5 b6 Nh6 Nh3 g1Q Nf4 g2 Qf7 Nf5 Qe6 Nd6 Qc7 Qf2 Qcd7 g1R Bh3 Qg3 Q7a4 Rg2 Rh2 Rga2 Rb2 Bg1 Rb4 Rb2 Qeg4 Nd7+ Ke6 Rab3 b8Q Ra3 b7 Nf8+ Ke5 Be6 Qc7 Nc8 b8Q Bf5 Qbb6 Bf1 Qbb7 Bg2 Qe8 Bg6 Qe1+ Kc2 Qec6 Kb1 Qa4 c3 Qgd1 c2 Qd4 Ka1 Bd7 Bh5 Kf5 Be2 e5 Bef1 Nh3 Ba6 Bd2+ c1R Bf4 Rb1 Bc1 Ng6 Ke6 Bd3 Kf7 Nf8 Bb5 Rg8 h8Q Rg4 Bd7 Rh4 Qf4 Rb3 Qd4+ R1b2 Rc4 Rb6 Rb4 Ng6 Qh5 Nf8 Qhd1 Bf2 Qh1 Bg1 Qe1
rR3R1N/1N1p3n/2k3q1/n3PP1R/1nQP1n1Q/rqq5/1N1R3R/3b2bK b - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 e5 axb5 f5 g4 h5 gxh5 e4 d3 Rh7 Bd2 Rh6 Bg2 Rh8 Kf1 e3 Bd5 exd2 e4 Be7 e5 Bf8 Be4 fxe4 Kg2 g5 h4 a5 c4 e3 f4 e2 c6 e1Q f5 a4 c7 g4 d4 a3 h6 a2 h5 g3 h7 Qh4 h6 Ra5 b6 Ba6 b7 Qf6 c5 Be2 c6 Ra3 Rh5 Na6 Nc3 Qg6 Nb5 Nb4 Nf3 Nf6 c8Q+ Ke7 Qb1 d1Q b8R Qc3 c7 Qdb3 Nd6 Bd1 Nb7 Bg7 Kg1 g2 Nd2 Re8 h8R Nh7 Kh2 g1N Nc4 Nh3 Nb2 Nf4 Qe4 Bf6 Qe1 Bh4 Kh1 Bf2 Rf8 Bg1 Qh4+ Ng5 Rc1 a1N h7 Rd8 h8N Re8 Rf6 Nh7 Rc2 Rg8 Rh2 Rf8 Na5 Rg8 Qa6 Rc8 Qc4 Ke8 Rb5 Ra8 c8R+ Ke7 Rc7 Kd8 Ra7 Nac2 Raa6 Nc6 Rb8+ Kc7 Nb7 Nb4 Ra4 Kb6 Rff8 Na5 Qg8 Ra1 Ra2 Kc6 Qc4+ Kb6 Nd3 Nfd5 Ndc5 Nf4 Rad2 Ra2 Nd3 Ra3 Qf7 Kc7 Nb2 Kc6 Qc4+
1r3bQ1/1p2RbQK/BQnPqQ1Q/1b2n3/2r3k1/Q2N1r1N/3P1Pq1/r7 b - - 0 1 legal: proof: g4 a5 a4 d5 c4 g5 cxd5 f5 e4 h6 exf5 Rh7 b4 Rf7 bxa5 Rg7 h4 Rh7 Ra3 Rh8 Rah3 Nc6 h5 Nb8 Rh4 Bd7 Bb2 Be6 Bf6 gxh4 g5 Bd7 g6 Bc8 Bg5 hxg5 Ke2 Kd7 Kf3 e5 Ke4 c5 a6 h3 a7 h2 d6 c4 a5 c3 a6 g4 f6 Ke6 h6 c2 f7 c1R h7 g3 g7 g2 Qf3 Ne7 g8Q Bd7 Nh3 g1Q Na3 Qg2 Nc2 Qc7 Ne1 Nbc6 Nd3 Rb8 a8Q Ng6 Qa7 Qc8 Qb6 Ra1 Rg1 h1B a7 Rc1 a8Q Rc4+ Ke3 e4 Qa3 Nge5 Kf4 Be8 Ng5+ Kf6 Be2 Qe6 Re1 Bd7 Qfe3 Be8 Qed4 e3 Bf1 Rc5 Qda1 e2 Q1b2 Rc4+ Q2d4 Bg7 f8Q+ Bf7 Qfd8+ Kg6 Qe7 Kh5 Qf6 Bf8 Qfg7 Qe8 Kf5 Qe7 Qdb2 Qe8 Kf6 Kg4 Qh6 Qd7 Qgg7 Rg8 h8Q Qe8 Q8h7 Rh8 Qhg8 Rh7 Rc1 e1R Rc3 Rb1 Rc1 Ra1 Re1 Nf3 Re7 Nfe5 Qhg6 Rh3 Q6h6 Rc3 Nb4 Rc5 Ba6 Rc4 Nd3 Rf3+ Nf4 Re3 Qb1 Nf3 Qaa2 Ncd4 Q1b2 Qg1 Qaa3 Qc8 Q2b5 Qg3 Qd5 Ne5 Qe4 Qg1 Qeg6 Bc6 Nd3 Bb5 Q7h7 Qg2 Qhh8 Ndc6 Qh8g7 Be6 Q6f7 Nf3 Kg6 Nfe5+ Kh7 Rf3 Qfg6 Bf7 Q6f6 Qe6 Nh3+
Q5nr/4k2B/2Q4b/Qn3rqr/3Bb1rP/2PrrP1R/3p1B1Q/QK4R1 b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 d4 g4 dxc5 g3 f3 Bb7 Qd2 Ba6 Qd1 Bc8 Nc3 h6 Nh3 Rh7 Ne4 Nc6 Nhg5 Rh8 Kd2 Nb8 Nf2 gxf2 g4 Nc6 Nf7 Nb8 g5 h5 Nh6 Nf6 Ng4 hxg4 Ra5 Ng8 Ra6 Rh3 Ra1 Rh8 b4 a5 h4 d5 c3 e5 Kc2 a4 c6 g3 g6 e4 c7 d4 b6 g2 g7 g1R b7 d3+ Kb1 e3 b5 e2 b6 e1R f6 a3 f7+ Ke7 Rh3 Na6 b8B Bb7 c8Q Be4 b7 Rh5 Bg3 Re3 Qc6 Nc7 b8Q Nb5 Be5 Rg6 Bd4 Rg4 Qh2 d2+ Bd3 f1R Qa4 Rh1 Qa5 Rhe1 Bc2 Rd3 Bf2 Nh6 g8Q Ree3 Qg7 Ng8 Qd4 Qd5 Qda4 Qg5 Bb2 Rd6 Bc1 Bh6 f8Q+ Ke6 Qfc8+ Ke7 Q8a6 Rf8 Qaa8 Rf7 Bd3 Rh7 Qd1 Rh8 Qf1 Bd5 Bh7 a2+ Kc2 Rd8 Ba3+ Rd6 Rc1 a1R Bc5 Be4+ Kb2 Ra4 Bd4 Rf6 Qfh1 Rf5 Rg1 Rd3 Kb1 Ra1+ Kb2 Re1 Ka2 Ree3 Kb1 Re2 Q1g2 Ree3 Qf1 Rff4 Qd1 Rf6 Qda4 Rf5 Qa1
K1n5/3R1R1P/n1k4N/rpP3q1/2qn4/1qbQQ1Nb/1P1QQ3/QN1q3b b - - 0 1 legal: proof: a4 d5 f4 b5 e4 e5 a5 Bc5 Bd3 Be6 fxe5 Bc8 e6 Be7 e5 Bf8 Be4 dxe4 g4 h5 gxh5 c5 d4 a6 d5 Ra7 Bg5 Rb7 Be3 Rb6 axb6 a5 Bd4 cxd4 Kf2 f5 c4 g5 h4 a4 e7 Kd7 c5 f4 h6 e3+ Kf3 g4+ Ke4 e2 h7 e1N b7 f3 h5 d3 d6 g3 Kd5 f2 h6 f1Q Qd2 g2 Ne2 g1Q Ng3 Na6 b8Q a3 Qa8 a2 Rh5 Qc7 Rf5 Bg7 Rf7 Nf3 Qa7 Qe3 Qa8 Qd8 Qa7+ Ke8 Kc6 Bh3 Kb7 Kd7 Qa8 Nd4 Ka7 Ke6 e8Q+ Ne7 d7 Qfe2 Kb7 Kd5 e6 Nc8 e7 Rf8 h8N Q3f3 Qe1 d2 h7 d1B Qd2 Qc4 Qa7 Be2 Ka8 Qfb3 Qd3 Kc6 Qd2 Qc7 d8Q+ Qd7 Qd3 Bf3 Qa5 Bh1 Qad2 Nb4 Qa3 Na6 Qa4 Qbc3 Qad1 Q3b3 Q1e2 Rg8 Qd8 Be5 Q8a5 Qdd5 Qa4 Rd8 e8Q+ Rd7 Qa3 Bf6 Q8e3 Qg5 Nc3 Be5 Rd1 a1Q Qa5 Qc1 Nb1 Bg7 Qa1 Rb7 Rdf1 Qcd1 Rd7 Nc2 Qh5 Bc3 Rf3 Nab4 Nf7 Nd4 Nh6 Ra7+ Kb8 Ra3 Rff7 Na6+ Ka8 Ra5 Qhe2
1NQ1r1q1/4bP1r/1R2P1rq/n2p2nQ/k2N1N1Q/1b6/QpQP4/3R1Kn1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 g4 Rh7 gxh5 Nc6 b6 Nb8 b5 Rh6 Ba3 Rh8 f4 e6 f5 Bb7 f6 Bc8 Bb4 cxb4 Nf3 Qe7 Ng5 Qd6 Nxf7 Qe7 Bh3 Qd8 Bf5 exf5 h4 g5 e4 a5 c4 b3 b7 g4 e5 g3 c5 a4 b6 g2 h6 g1N h5 f4 h7 f3 c6 f2+ Kf1 a3 h6 a2 c7 Nc6 b8Q Be7 b7 Na5 Ng5 d5 f7+ Kd7 e6+ Kc6 Rh4 Kb5 Nf3 Bd7 c8Q Nf6 Qdc2 Ne4 Nd4+ Ka4 Rg4 Rg8 h8Q Rg6 h7 Ng5 Rg3 Qg8 Nc3+ Kb4 Qhe5 Ba4 Rd1 a1Q Nce2 Qc3 h8Q Qe3 Qef5 b2 Qh5 Ka3 Qbf4 Bb3 b8N Ka4 Qfh4 Qf4 Qfe4 Qf6 Rc3 Qfg7 Rc6 Qh6 Nd7 Rb8 Nf4 Ra8 Rb6 Rb8 Kg2 f1R Qb1 Rf3 Qec2 Rh3 Kf1 Rh2 Q8c3 Re8 Qc8 Rg7 Nb8 Rg2 Qcc1 Rh7 Q8c2 N5h3 Qc8 Rg6 Qc1c2 Ng5 Qa2+
2N5/1p1bQPQr/1qk1n1PB/1Q2Kb2/b1b2r2/3Q1P1N/2pQRQ2/1nb5 b - - 0 1 illegal: No proof kernel
2Q4q/1p1bR1R1/1r3nP1/6b1/2bP1r1r/QRQk3N/pP2n1NK/2Q2r1Q b - - 0 1 illegal: No possible last move, all moves rejected
N6K/3Pr3/B2n2B1/1QQpN1PP/3Bq3/pbQ4B/k2n3b/rn1nBq2 b - - 0 1 legal: proof: d4 b5 f4 d5 a4 g5 axb5 e6 fxg5 Be7 c4 Nh6 cxd5 Bc5 d6 Ng8 d7+ Ke7 d5 Bd4 Ra5 Bg7 Ra1 Bf8 g4 h5 b4 Rh7 h4 Rg7 g6 Bb7 g5 Bc8 Ra6 Rh7 Rd6 Rh6 Rh3 Rh7 Rg3 Rh8 Rg4 hxg4 Ra6 Bb7 Ra3 Bc8 Rd3 Kd6 Rd4 Ke5 d6 Kf5 Rd5+ exd5 Nc3 Ke5 Nb1 Ke6 Kf2 c5 Ke3 a5 Kf4 f5 e4 a4 g7 g3 h5 g2 b6 c4 b5 c3 e5 c2 b7 Qe8 d8Q Bd7 b6 Rh7 Qg4 Ne7 Qh3 Nc8 Bc4 Na6 b8B Nb4 b7 Na2 Qc7 Nc3 Bb2 c1N Nd2 Nd1 Qc3 Na2 Ngf3 g1Q Qc5 Qf1 g8B+ Rf7 Bh7 Re7 Bg6 Bb5 Be2 Bc4 d7 Bb3 Nc4 Bg7 Nb6 Nd6 Ba6 Ra7 Na8 Bh8 Kg3 f4+ Kg4 Bg7 Bgd3 Qg6 Bc7 Qe4 b8Q Bh8 Qbb5 Bf6 Q3b4 Nac3 Ba5 Nb1 Bd4 Bg7 Qbc3 Bh8 Nh4 Bg7 Ng6 f3+ Kg3 Kf5 e6 f2 Ne5 Bf6 Be2 Bg7 Bf3 Bh8 Bg2 Bf6 Ng4 Be5+ Kh4 Bh2 Bh3 Qg1 Bb4 f1N Ba5 Kf4 Ne5 Nfd2 Bb4 Qf1 Ba5 Rg7 e7 Rh7 e8B Re7 Qb7 a3 Qb8 Rb7 Bg6 Rb4 Qbb5 Rc4 Q3b4 Rc2 Qcc3 Ra2 Q4c5 Ra1 Bb4 Qed3 Nc4 Kf3 Ne5+ Ke2 Kg4 Nb2 Q3c4 Kd1 Bbc3 Kc1 Q4b4 Nd2c4 Be1 Nd1 Q4a5 Qc2 Qc3 Ncd2 Qf3 N6e4 Kf5 Nd6+ Kf6 Qcc4 Nf7 Qc2 Kg7 Qcc4 Kh8 Qc2 Bg1 Kb2 Qfc3+ Ka2 Bd4 Qe4 Ne5
nn4K1/2R3bN/1Qq1P1Q1/Qbk3r1/1R2Q2p/2pQ3q/2P1BnQP/3b3n b - - 0 2 legal: proof: b4 b5 d4 a5 e4 g5 a4 e5 dxe5 Qf6 f4 Qd8 f5 Nc6 f6 Nb8 Bf4 Ra6 Nc3 Re6 Nce2 Re7 e6 gxf4 e5 Bh6 Nc3 Kf8 fxe7+ Kg7 Nd5 Kg6 axb5 Bb7 b6 Bf8 b5 Bc8 Nb4 axb4 Kf2 Kf5 Kf3 d5 e8Q c5 e7 Ke6 Kg4 h5+ Kg5 f5 Kg6 f3 g4 h4 g5 c4 b7 b3 b6 d4 Qb5 f2 Qg4 d3 Qf4 d2 Rd1 c3 Qe8 Kd5 Kf7 b2 g6 b1N g7 Qd7 e6 Nf6 g8Q Bg7 Qd8 Ne4 Qf3 f4 Qd3+ Kc5 Nf3 Rh5 Be2 f1Q Ng5 f3 Nh7 Qc6 e8Q f2 Rg1 Na3 Rb1 d1B Rb4 Nb5 Qc7 Be5 Qg2 Bg7 Kg8 Rg5 Qg6 Bd7 Qf4 Nc7 Qfg4 Nba6 b8Q Na8 Qc7 Nb8 b7 Be8 Q2f3 Qh3 Qfg2 f1N Qa5+ Qb5 Q4f3 Nf2 Qfe4 Ng3 Rf1 Ngh1 Rg1 Na6 b8Q Bc6 Qbc7 Nb8 Rf1 Ng4 Rf7 Ngf2 Qa6 Qb7 Qca5+ Bb5 Rc7+ Qc6 Q6b6+
2n2n1Q/1QB1NP2/2Q1q1p1/1K3B2/2prb2N/k3p1r1/Q1P4P/b2rQ1rN b - - 0 1 legal: proof: d4 a5 g4 b5 a4 h5 axb5 e5 gxh5 Bd6 dxe5 Kf8 b4 Ke7 b6 Ke8 b5 Bf8 e4 f5 e6 Qf6 e5 Nh6 Nf3 Bc5 Ra4 Qd8 Bg2 Bd6 Re4 fxe4 Kd2 Ng8 Re1 Ba3 Re3 Bc5 Rb3 Bf8 Rb4 axb4 e7 d5 h6 Kd7 b7 c5 e8Q+ Kc7 h7 Kb6 e6 Ka5 e7 Ka4 b6+ Bd7 Bh3 c4 Bf5 b3 Kc3 b2 Nbd2 b1R Nh4 g6 f4 Bc6 Nf1 Qd6 Ng3 Qd7 Nh1 Qe6 Bd2 Nd7 b8N Bh6 b7 Nf8 Be1 Ra7 Bg3 Ka3 Qe1 e3 Qd7 Ra5 e8Q Ne7 Qc7 Rg8 h8Q Nc8 Qb6 Rd1 Qb1 Rg7 Qd7 Rd4 Qc7 Rf7 Qcb6 Bg7 Qa6 Be8 Nc6 Bd7 Ne7 Bc6 b8Q Bb7 Bd3 Rf5 Qab5 Rg5 f5 Ra8 Bf4 Rg3 f6 Ra4 f7 Rb4 Qbd1 Rb1 Bf5 Ba8 Bc7 Bc6 Qed2 Rc1 Qf3 Rcg1 Qe1 Re4+ Be5 Reg4 Qe4 Bb7 Kd4 Ba8 Kc5 d4 Qe8 d3 Bc7 d2 Qbb1 d1R Kb5 Ba1 Qg2 Bf3 Qd7 Rgd4 Qd5 Be2 Qb7 Bd3 Qgc6 Be4 Qa2+
5B2/pqP2b2/bk5R/4QPbr/1b2Bn2/4K1B1/PpBn1npQ/R3BQ2 b - - 0 1 legal: proof: d4 f5 b4 e5 dxe5 c5 bxc5 Na6 e6 Nb8 g4 Bd6 e4 Qh4 e5 Qg5 f4 Bf8 Nc3 Qf6 Ne4 fxe4 f5 Qd8 f6 b5 Qe2 Na6 Qd3 Rb8 Qd2 Rb6 Qd1 Rd6 Be2 Rd3 Nh3 Rf3 Ng5 Rf5 gxf5 h6 Bc4 hxg5 Bf1 g4 Ke2 d5 h4 g5 c4 b4 e7 Kd7 e8B+ Kc7 h5 g3 e6 b3 h6 e3 e7 d4 h7 d3+ Kf3 e2 f7 e1B c6 g2 c5 g1N+ Ke3 g4 Bd2 b2 Bh3 g3 Rh2 g2 Qb1 Qd7 Bg4 Nf3 Rh6 Bh4 Be1 Nd2 Bd1 Nb4 Bc2 Nf6 Qd1 Ba6 Qc1 Bg7 f8B Nh5 Bf7 Qd5 e8Q Nf4 Qb1 Qb3 Bd5 Bc3 Be4 Bg5 Qh5 Qd5 Qh2 Qd7 Qd1 Qc8 Qc1 Qb7 Qd1 Nf3 Qe2 d2 Qf1 d1B Bg3 Nd2 Be1 Rg8 h8B Nd3 Bd4 Rh8 Be5+ Kd8 Bed6 Bb4 c7+ Kd7 Be5 Nf2 Bed6 Bh5 c6+ Ke8 Be5 Bf7 c8Q+ Bd8 Rh4 Rh5 Qc7 Bf6 Qa5 Bg5 c7 Kd7 Qc5 Bd5 Qe7+ Kc6 Bd6 Kb6 Qe5 Rh8 Rh6 Be6 Rg6 Rh5 Rh6 Bd8 Bfe7 Bf7 Bh4 Be7 Bg3 Bg5 Bf8+
N2N1b2/p6p/1R3N2/3QKb2/RP1pQRqq/p1R5/3P1P1n/1r1rknR1 b - - 0 1 legal: proof: e4 f5 exf5 g5 b4 c5 h4 c4 hxg5 c3 Ba6 bxa6 Bb2 cxb2 a3 Kf7 b5 Ke8 b6 Nh6 Nc3 b1Q Nge2 Ng8 Ng1 Qb5 Nb1 Qb4 axb4 Bh6 Na3 Bg7 Nb1 Bf8 Ke2 Kf7 Kf3 d5 Kf4 d4 g4 e6 c4 a5 g6+ Kf6 b7 a4 c5 Qb6 g7 Nc6 b8R Nce7 c6 Qd8 c7 Nh6 Qe1 Rg8 Nf3 e5+ Ke4 Be6 c8R Nd5 Rb6 Ne3 Ng5 Nf1 Rc3 Rc8 Nf7 Qd7 Nd8 Kg5 f6 Bf5+ Kf3 Rc7 Rg1 Kh4 f7 e4+ Kf4 e3 g5 e2 g6 Ng4 Na3 Ngh2 Qb1 e1Q Nc4 Qee7 Qe4 Kh5 Ra2 Qh4+ Ke5 Qc8 Nd6 Rc6 Nb5 Qd7 Nc7 Rc4 Rd3 Rc1 Na8 Rd1 Rc3 Rb1 Raa3 Rd1 Rc5 Qc8 Rac3 a3 Ra5 Qc4 Ra4 Qe2 Rb7 Qeg4 Rb6 Rh8 g8N Kg5 Nf6 Rg8 g7 Rb1 Kd5 Rd1 Qe6 Kf4 Qc6 Bd3 Qe6 Kf3 Ke5 Ke2 Qf5 Ke1 Qf3 Be7 f8R Bf5 Rf7 Re8 g8Q Rb1 Qg6 Rg8 Qd5 Bf8 Rf3 Rg7 Rf4 Rg8 Rc7 Rg7 Rc8 Rc7 Qe8 Rcc1 Rc3 Rd1 Qg6 Qf3 Qg2 Qfg4 Qge4+
5N2/1qQ3bK/PpB4P/2N2p2/n1B1pB2/1p2kbNB/BPr1q2r/1Q5r b - - 0 1 legal: proof: g4 a5 a4 c5 e4 h5 f4 g5 d4 d5 dxc5 Bf5 h4 d4 Ra3 Na6 Rb3 Bc8 Rb4 Nc7 Rh3 Nd5 exd5 axb4 Rg3 Qd7 fxg5 Qd6 g6 Qd7 g5 Qd8 Rg4 hxg4 Kd2 Kd7 Kd3 e5 Ke4 g3 Kf5 d3 c4 b6 d6 Kc6+ d7 f6 h5 d2 h6 e4 a5 g2 a6 Qc7 g7 Bb7 Kg6 f5 d8N+ Kd7 c6+ Kd6 c5+ Ke5 Ne2 g1Q Bh3 Qg3 Ne6 Qe1 Nbc3 Nf6 g8B Rc8 Ng3 Bg7 Na4 Nd5 Nf8 Nc3 Ba2 Rg8 Kh7 Kf4 g6 b3 Qc2 Qe2 Qb1 Qd7 c7 Bd5 c6 Bc4 Nc5 Bf7 Qc2 Kf3 Qb1 d1R Bg5 Rh1 Bf4 Bf6 g7 Na4 Nfe6 Rgd8 g8B Bg7 Nf8 Bh5 Bc4 Kf2 Nfe6 Bf3 Nf8 Ra8 c8Q Qb7 c7 Rd2 Qd8 Rc8 Qd7 Rc2 Qe7 Rd8 c8B Rdd1 Qe5 Rh2 Qc7 Rf1 Bd7 Rfh1 Bd6 Ke3 Bc6 Rc3 Be5 Rc2 Bf4+
5nRB/rqpQ3n/4Qq1k/Q3p2P/KQPrP1Qb/3B1B1b/1Rr2n2/7q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 c4 d4 Nc3 dxc3 Nh3 Na6 Nf2 Bd7 fxg5 Bf5 g6 Bc8 g5 Nb8 Ng4 hxg4 d4 f5 b4 a5 h4 f4 b6 f3 d5 c2 Kd2 f2 Kc3 a4 g7 Kf7 b5 Kg6 Kb4 g3 h5+ Kh7 d6 g2 b7 g1R b6 e6 Bb2 c1N g6+ Kh6 Rb1 Nf6 g8B a3 g7 Nbd7 b8Q a2 b7 a1Q Qa7 Rg2 b8Q Be7 Rg1 Nh7 Qa5 Ra7 e4 Ndf8 Qg4 Bd7 Bd3 f1Q Bf6 e5 Be6 Re2 g8Q Rc2 Rb2 Qb1 Bf5 Qh3 Qe6 Qh1 Qbb6 Rg8 Bh8+ Rg6 Qbb5 Bh4 Ka4 Qf6 Rg2 Bc8 d7 Rg7 d8Q Rd7 Qb4 Rd4 Bf1 Nd3 Qdd7 Nf2 Bd3 Nd1 Qh3 Nf2 Bg4 Bb7 Bf3 Bd5 Qec6 Be6 Rg8 Bf5 Qce6 Bg4 Qg3 Bh3 Ra2 Qb2 Qgg4 Qbb1 Qc3 Qb8 Qb4 Qb7 Rb2
qQQ2B2/2Kp2b1/1r1P1qnp/Q5rr/rQ1rP3/1B6/1nk2NQP/4BN1b b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 f4 Qf6 fxe5 Ne7 b6 Ng8 b5 Qd8 g4 g5 e3 Na6 Bd3 Qc7 Ne2 Nb8 Ra4 Qd8 Rb4 cxb4 Rf1 Na6 Rf5 Nb8 Rf4 gxf4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 c4 f6 g5 f3 b7 b3 g6 b2 c5 f2 b6 f1Q c6 a4 c7 a3 g7 a2 Ng3 a1R Qe1 Ne7 Bc2 R8a4+ d4 Ng6 Qa5 Nc6 b8B Nb4 b7 Nd3 Nc3 b1R Ba3 Rb6 Nd1 Nb2 Nf2 Rd1 Bc5 Qa6 Nf1 Qa8 Ba7 Qe7 g8Q+ Qf7 Bb4 Bg7 Be1 h6 Qf8 Rg8 Qfc5 Qf8 Qc6+ Qd6 b8Q Bb7 c8Q f5+ Kf3 f4 Ke4 f3 Bb3+ Ke7 e6 Kf6 e7 Rd3 e8Q Rd2 Nd3 f2 Qb4 Kg5 d5 Qf6 Qee5+ Kg4 Kd4 Kf3 Kc5 Ke2 d6 Rd1 Qg2 Bf3 e4 Rd2 Qg1 Bh1 Qg2 Rd1 Qec3 Rd2 Qa5 Rd1 Qcb4 Rd2 Ne5 Rd4 Ng4 Kd3 Qa3 Ra6 Q3b4 Rc6+ Kb5 Rc5+ Kb6 Rh5 Bc4+ Kc2 Kc7 Re8 Bd5 Ree5 Be6 Reg5 Bb6 Rdd5 Bd4 Rb5 Bf7 Rb6 Bb3+ Kc1 Ng3 f1R Nf2 Rg1 Nf1 Rd5 Qh3 Rgg5 Be5 Rd4 Qg2 Qf5 Bf6 Kb1 Bd8 Qf6 Be7 Kc1 Bf8 Kb1 Bc4 Kc2 Bb3+
BR1kr1b1/2n1pn1Q/RrP2p1b/2Rn2R1/R2n1P2/1q4p1/r1N3PQ/R6K b - - 0 1 illegal: No proof kernel
3N2R1/q2p2p1/4n1r1/1rNN4/5Rbp/knR1K1P1/pQrPp2P/Q1R1b2R b - - 1 3 legal: proof: b4 c5 bxc5 b5 f4 e5 a4 Bd6 axb5 Ba6 f5 Bc8 Bb2 Bf8 e4 Qa5 Bc4 Qa3 Be6 Qa4 Bd4 Qa5 Be3 Qc7 Bf4 exf4 e5 Qb6 Bb3 Qd8 e6 Ba6 e7 Bc8 Be6 fxe6 Ra5 Kf7 Ra2 Qc7 Ra1 Qd8 Ke2 h5 e8N Ke7 c4 a5 g3 h4 b6 e5 c6 f3+ Ke3 f2 b7 f1R c5 e4 c7 a4 c6 a3 Qc1 a2 Na3 Na6 b8Q Rh5 Qb5 Bb7 c8R Nf6 c7 Nd5+ Ke2 e3 Nd6 Nc5 Nf7 Nb3 Nf3 Ra6 Nb1 Rg6 f6+ Ke6 Ne1 Bc5 Ra8 Qb8 c8R Nc7 Nd3 Kd5 Nd8 Ne6 f7 Qa7 f8R Rg1 Qc3 Rc1 Rf4 Rc2 Qb6 Bd4 Nc5 Rhg5 Qb2 Kc4 Nc3 Bd5 Rac1 Bf3+ Kf1 Bd1 Qa1 Bg4 Nd5 e2+ Kg2 Na5 Qbb2 Nb3 Qbb1 Kb5 Rc7 Bf2 Rcc8 Be1 Rc6 Bf5 Kf3 Bg4+ Ke3 Qa3 Ne4 Qa7+ Rc5+ Ka4 Rc8 Qb7 Rc3 Ka3 Nc5 Qb8 Nf7 Rf5 Rg8 Qa7 Nd8 Rf8 Nc6 Rb8 Nd8 Rb5 Qbb2+
KNbr1Nr1/1PPN2P1/3kNr2/1N2N1bb/1q4B1/B1N5/nq5b/b1n4Q b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 h4 h6 g4 Qa5+ b4 Qc7 f5 Qd8 Rh2 Qa5 Rf2 Qd8 Rf4 gxf4 g5 h5 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Ke2 e5 Kd3 d5 c4 Kd7 c6+ Kc7 f7 a5 b6+ Kd6 b7 d4 Ke4 a4 g6 f3 f6 f2 g7 a3 c7 g3 b5 g2 h5 d3 h6 d2 h7 a2 b6 a1B Nh3 g1B Ng5 Qe8 Nc3 Nc6 b8N Bh2 Be2 f1R Bg4 Na5 Ne6 Be7 f8N Qb5 f7 Bg5 Nfd7 Nb3 f8N Rf6 Qh1 d1B Ba3+ Qb4 b7 Ne7 Kd3 Rg8 h8N Nd5 Nhg6 Nc1+ Ke4 Na2 Kd3 e4+ Kd4 e3 Nge5 e2 Bf3 Ke7 Bg4 Qd6 c5 e1Q c6 Nf4+ Kc4 Nd3 Kb5 Qd2 Kb6 Ndc1 Qf3 Ra5 Qh1 Rd5 Ka7 Qb2 Ka8 Qdb4 Ndc5 Qb1 Be2 Bd7 c8N+ Ke8 c7 Q1b2 Bb5 Bh5 Nd6+ Ke7 Be2 Bc8 Bg4 Rd1 Ndb5 Rd8 Nbd4 Kd6 Ncd7 Rh6 Qg2 Rg6 Qh1 Rf6 Ndb5+
r1Q4R/6RN/3n1Kbb/1P3N1R/RbR1P3/1p1RP2n/4kRr1/n1q2qb1 b - - 0 1 legal: proof: g4 h6 b3 Na6 g5 Nb4 g6 Na6 Bb2 Nb8 f4 Nf6 f5 Ng8 Bf6 Na6 Bg5 hxg5 f6 Nb8 fxg7 Rh4 Nf3 Rh5 Ng1 Rh8 b4 b5 d3 e5 c3 e4 dxe4 a5 Bh3 a4 Be6 Ra6 c4 Ra7 cxb5 Ra8 Bb3 axb3 Kd2 Ke7 Kd3 Kd6 Kd4 c5+ Ke3+ Ke5 a4 f5 h4 d5 b6 g4 b5 g3 h5 c4 h6 c3 b7 g2 a5 c2 a6 c1B+ Nd2 Nf6 g8R Qc7 g7 Bb4 h7 Nc6 b8R Nd4 a7 Ne8 Nh3 Nd6 Rd8 Rg8 h8R g1B+ Kd3 f4 Nf1 f3 Ng3 f2 Nf5 f1Q Ra4 Qc5 Qc2 Bh6 Ng5 Kf4 Rh5 Be6 Qc4 Nc2 Nh7 d4 Rbc8 Bf7 Ra2 Bg6 Rc7 Rb8 a8R Na1 R8a4 Ra8 Qe6 Qcc1 Rc4 Kg4 Qc8 Kf4 Nh4 Kg3 Nf5+ Kf2 Rd7 Rf8 g8R Ke1 Ng7 Rf2 Nf5 Rg2 Rgg7 Kd1 Rcc2 Ne8 Kc4 d3 Kd5 d2 Ke6 Nd6 e3 Ke1 Rab2 d1N Rc4 Nf2 Kf6 Nh3 Rf2 Kd1 Rf3 Ke2 Rf4 Nf7 Rd3 Nd6 Rf2+
r1nk3Q/1b1RRrPQ/5bK1/rNQ1N2N/3b2R1/1Pr5/bP2pn2/7R b - - 0 1 illegal: No possible last move
3QR2K/4Q2n/Qbb4P/k1r2q1B/n3R3/1bRbP2q/r3qBBP/n6R b - - 0 1 legal: proof: g4 b5 d4 f5 a4 h5 gxh5 e5 axb5 c5 Kd2 f4 Nf3 Qb6 Nc3 Qa5 dxc5 Qd8 Nd4 exd4 e3 f3 Ne2 fxe2 Kd3 e1Q Ke4 d5+ Ke5 Kd7 b4 Kc7 f4 g5 c4 a5 f5 g4 c6 Kb6 h6 a4 c7 g3 f6 g2 f7 g1Q Ba3 d3 Rb1 d2 Rc1 d4 Bg2 d3 Rc3 Bb7 c8B Qgf1 Bg4 Qee2 Bh5 Bc5 f8Q Na6 Qe7 Nf6 Ke6 Qc7 Kf7 Nh7+ Kg7 Qd7 Qa1 d1B Bc1 a3 Bd2 a2 Be1 d2 Bf2 Bb3 Qd1 Bd6 c5+ Kc7 c6 Kb6 c7 a1N c8Q Bc6 Qd8+ Bc7 Qb1 d1B Qa2 Qf5 Qa4 Kb7 b6 Nc5 b5 Bdc2 Qc4 Rf8 Qce6 Rf6 Kh8 Ra2 Qc4 Bd3 Qa4 Qc8 Qa5 Rf5 Qa6+ Kb8 b7 Bb6 Qa4 Rd5 Qc4 Ka7 b8R+ Qd7 Ra8+ Kb7 Ra4 Rf5 Rb4 Na4 Qce6 Rc5 Re4 Bc7 b6 Ka6 b7 Bb6 b8R Ka5 Qc7 Qd5 Re8 Qf5 Qcd8 Qh3 Bh4 Qf7 Bf2 Qg6 Qc4 Qgf5 Qa6+
5n1R/2P1QN2/R3n1kr/Qq2q1rq/r2P4/q1b1N1r1/P1b2K1N/RQ2R3 b - - 0 1 legal: proof: e4 d5 b4 a5 c4 h5 g4 f5 exf5 Nc6 gxh5 Nb8 Ba3 c5 bxa5 Rh7 Bb4 cxb4 c5 Rh8 Bc4 dxc4 f4 Kf7 h4 b5 d4 g5 c6 e5 f6 c3 f5 b3 a6 c2 c7 c1Q a7 g4 h6 e4 h7 g3 h5 b2 h6 e3 Nf3 g2 Rg1 b4 Rh1 g1R+ Ke2 b3 Nh4 Nc6 Qd3 Qd5 Ng6 Rg5 Nd2 b1R Qc3 b2 Nf3 Nd8 Nf4 Bb4 Nh2 Ne7 Ng2 Ng6 Re1 Nf8 Qb3 Rhg8 h8R Nde6 h7 Bc3 Qb5 Rg3 Qa5 R8g5 Kf1 e2+ Kf2 Ba6 Ne3 Qh1 Neg4 Bd3 Ne3 Rd8 a8Q Bc2 Qb7 Rb8 Qe4 Rb4 Qb7 Ra4 Qbb6 Ke8 f7+ Ke7 Qb3 Kf6 Qbb6 Kg7 f6+ Kg6 Qb3 Nd7 Ra8 Ndf8 Ra6 Qd5 Qb8 Qc5 Qbb6 Qd1 Qb7 Qa3 Qh1 Rc1 Qg1 b1Q h8N+ Kh7 Qh1 Qb8 Qg1 Rb1 Qh1 Rb6 Qb7 Rd6 Qb3 Qb5 Qb1 Ng6 f8Q Rb6 Qc8 Ngf8 Nf7 Kg6 Qd8 Rc6 Qe7 Rb6 Rg1 Rd6 Rg2 Qh1 Rg1 Rc6 Re1 Rb6 Nhg4 Qh5 Nh2 Kh7 Rd1 Nc5 Nd5 Nfd7 Ne5+ Kh6 f7 Rbg6 f8R Ne6 Rg8 Ndf8 Nf7+ Kh7 Rf1 Rh6 Rh8+ Kg7 Ne3 Kg6 Ng2 e1Q+ Kg1 Qee5 Re1 Qc6 Kf2 Qcb5 Ne3
Q1QR2k1/Bb1b1r1p/2P1P3/2QR1Q1b/8/1rB1bB1n/P1rq4/Kb1R2n1 b - - 0 1 illegal: No possible last move, all moves rejected
4Qn2/Q1np1B2/1PP5/B1q2Q2/NB1b3r/rr2Nb2/k1PNQ2n/3K2nn b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 h4 h6 g4 Qa5+ b4 Qc7 f5 Qd8 Rh2 Qa5 Rf2 Qd8 Rf4 gxf4 g5 h5 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 b6 e5 b5 a5 b7 f3 f7+ Ke7 g6 f2+ Kd2 g3 g7 g2 h5 a4 b6 e4 h6 a3 h7 a2 Nf3 a1R Ng5 g1N Nf3 e3+ Kd3 e2 Kd2 e1N Ne5 Na6 b8N Nf6 g8Q Bb7 Nc4 Qc7 Ne3 Bf3 Qe2 Nd3 Kd1 Bg7 Bd2 Ra3 Ba5 Rb3 Nd2 Qe5 c6 Kd6 Qe8 Kc5 Bg2 f1N f8Q+ Kd4 Qff7 Nc7 Na6 Nh2 Nc5 Qd6 Na4 Qc5 Qb8 Ra6 Qa7 Nf2+ Kc1 Nh1 Kd1 Nfe8 f6 Ne6 Qh5 N8c7 f7 Bf6 f8Q Be5 Qfe8 Nf8 Qf5 Bg7 Nc3 Bf6 Bb4 Raa3 Na4 Qd5 Be7 Qc5 Bh3 Be5 Bg4 Bf6 Bh5 Bg7 Bf7 Bf6 Nb2 Kc3 Na4+ Kb4 Bd6 Bd4 Be7 Rg8 h8B Rg4 Be5 Rh4 Bg3 Ra2 Be1 Ka3 Nc3+ Kb2 Na4+ Ka1 Bd6 Raa3 Be7 Qa5 Bb4 Ka2 Ne4 Qb5 Bec3 Qc5 Nd2 Ng4 Ba5 Nh2 Bcb4
3k3Q/3qp2P/QNr5/QRN3b1/n1q3r1/PbbbP3/1nbRRKQ1/2N5 b - - 0 1 legal: proof: c4 a5 b4 c5 bxa5 d5 cxd5 g5 f4 Qc7 fxg5 Qd8 g4 h5 g6 Bg7 g5 Rh6 Ba3 Bf8 Bb4 cxb4 Bh3 Rh8 Bg4 hxg4 h4 f5 d4 b5 h5 f4 d6 b3 g7 g3 d5 b4 a3 g2 h6 b2 a6 b3 a7 f3 g6 Qd7 h7 Nh6 g8R Nf7 Kf2 Kd8 Nc3 b1B Na4 b2 Qd3 Bc2 Ra2 b1B Rh5 Ne5 Qa6 Nc4 Nc5 Nb2 Rg7 Rg8 e3 Bd3 Re5 Bbc2 Ne2 Bb3 Rf7 Bh6 g7 Bg5 Nc1 Bb7 Rff5 Bc6 Re4 Bca4 Rd4 Bbc2 Re5 Bab3 Rf5 Qe8 d7 g1B+ Kg3 Bh2+ Kf2 Bc7 Re5 Ba5 Rf5 Be2 Rd2 Bed3 Re5 Bc3 Rf5 Rf8 g8Q Rf6 Re5 Rf4 Qg7 Rg4 Re2 Nc6 Qh8 Rb8 a8N Na4 Nb6 Rc8 Rf5 Ne5 Rb2 Bb1 Rbd2 Nc4 Qg7 B1c2 Qg8 Kc7 Qg6 Ncb2 d8Q+ Kb8 Re5 Qd7 Qh8 Kc7 Qgg8 Rf8 d6+ Kd8 Ne4 Re8 Rb5 Rf8 Qd5 Rg8 Nc5 Rc4 Kg3 f2 Qh1 f1Q Qg2 Qe6 d7 Qef5 Ne4 Rc6 Nc5 Qd5 Qf3 Qh3+ Kf2 Qc4 Qg2 Bh6 Qe5 Rg4 Qf6 Bg5 Qd4 Qh5 Qh8+ Qe8 Rb4 Rg6 Qf1 Kc7 Qh1 Qc8 Qg2 Qb7 Qha8 Qc6 Qa5 Qb7 Q8a6 Rc6 Rb5 Kd6 d8Q+ Qd7 Qf8 Kc7 Qg7 Kd8 Qh8+
1Q1B1qr1/R1Pq2b1/Q1rn3p/P1k1B1n1/b6B/b4R1P/B5K1/Q2bqR2 b - - 0 1 legal: proof: e4 d5 exd5 a5 d4 c5 dxc5 f5 f4 a4 Nf3 Nc6 Ne5 Nb8 Nc3 Qd6 Ne4 Qd8 Nd3 a3 bxa3 g6 a4 fxe4 f5 g5 Nf4 gxf4 a5 Qd7 Bc4 Qc7 Bf1 Qd8 Kf2 Kd7 a4 b5 c4 e5 g4 h6 d6 Kc6 a6 f3 a5 e3+ Kg1 b4 h3 e2 g5 e1B a7 e4 f6 b3 f7 b2 g6 b1B d7 e3 g7 e2 Bf4 f2+ Kg2 Bc2 Ra3 Ba4 Rf3 Bb4 Qa1 e1Q Be5 Ne7 g8Q Bg7 f8B Nf5 Be7 Ba3 Bh4 Na6 Be2 Qe7 d8B Qd7 Rf1 Nc7 Bd3 Bb7 Bb1 Rc8 a8R Ne6 Ba2 Ng5 Ra7 Nd6 Qe8 Rg8 Qg6 Rc7 Qgb1 Bc8 Qb8 Qe7 Qbb2 Bg4 Qb8 Kd7 c6+ Ke6 Qb6 Qd7 Qb8 Rc8 c7 Bh5 Rb3 Bd1 c5 Kd5 c6 Kc4 Rf3+ Kc5 Qbb2 Rb8 c8Q Rb6 c7 Ra6 Rh1 Rc6 Qa6 f1Q+ Kh2 Qb5 Rhf1 Qbb4 Kg2 Qf4 Qbb1 Qf8 Qb8
3N1n2/1K1N1R1P/4bR2/1nPQ2b1/p3n2Q/Pr2r2n/R1n1bNr1/1k3Q1Q b - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 c4 f4 c3 e6 Be7 e5 Ba3 bxc3 Bf8 c4 Qb6 c5 Kd8 e7+ Kc7 e6 Kc6 Ke2 Qc7 Ke1 Qd8 g4 h5 Be2 Qc7 Bb2 Qd6 Bf6 Qe5 fxe5 gxf6 g5 f5 Bg4 hxg4 Qe2 f4 Qf3+ Kc7 Qd1 Kc6 Ke2 Kb5 Kd3 Ka4 Kd4 f5 Kd5 a5 e8R b5 h4 g3 a3 b4 c4+ b3 c6 f3 e7 g2 c7 f4 e6 f2 c5 f1N h5 f3 g6 f2 g7 Nf6+ Kd6 Rg8 h6 Ne3 h7 f1B Qe2 b2 Nh3 Kb3 Ra2 g1N Ng5 a4 Nc3 b1R Rh6 Nc2 Nd1 Nh3 Nf7 Ne4+ Kd5 d6 Rf6 Nd7 Kc6 d5 Nd8 d4 Qe1 d3 Qh4 d2 Rf7 Rh8 g8Q Bh6 Ref8 Be2 e8N Bg5 e7 Rb2 Nf6 Rb8 e8Q Rb5 Ne3 d1N Qe7 Ndc3 Nd1 Rb7 Qe5 Nb5 Qh2 Rb8 Qh1 Rb7 Qg6 Rg8 Qf5 Rb1 Qff1 Rg6 Re8 Nf8 Re6 Rc1 Rd6 Be6 c8Q Rb1 Qa8 Re7 Nd7 Rg7 Nf2 Kc3 Kb6 Rb3 Kb7 Rg6 Ra6 Kd2 Nd1 Kc1 Qb8 Kb1 Qe5 Bd2 Rb6 Rg2 Qd5 Bg5 Rf4 Rg7 Rf7 Rg6 Rd6 Rf6 Rb6 Rff3 Ra6 Rfe3 Rd6 Bf5 Rdf6 Be6 Nf2+
K7/bP1BB2n/P3n1b1/qb3Q1B/p2R1rR1/P2qr2Q/2B3p1/k2Q1q1R b - - 0 1 illegal: No proof kernel
3q2qN/kQp1Q2r/1N4P1/P2pB2P/1n6/2b1Bn1B/3r1pB1/1K1nNb1Q b - - 0 1 legal: proof: d4 a5 f4 d5 b4 g5 bxa5 e6 fxg5 Ke7 c4 Kd7 cxd5 Qe7 d6 Qd8 d5 Ke8 d7+ Ke7 a4 Kd6 g4 h5 h4 Bg7 g6 Bd4 g5 Kc5 d6 Kc6 Rh2 Bg7 Rg2 Bf8 Rg4 hxg4 Ra2 Bg7 Rd2 Bf8 Rd5 exd5 Kd2 f5 Kc2 b5 e4 Kb7 e5 f4 h5 b4 g7 f3 g6 g3 e6 g2 a6+ Kb6 a5+ Ka7 e7 f2 e8Q Ne7 g8B Nec6 Na3 b3+ Kb1 b2 Nc4 Bg7 Qe7 Nb4 Nf3 g1Q Nb6 N8c6 Ne1 Nd4 Bg2 Nf3 Be6 Bc3 Beh3 Rb8 Be3 Qg8 d8N Rh7 d7 Qh2 Qc1 Qd6 Nf7 Bb7 d8B Bc6 Bf1 Bb5 Bfg2 Bf1 Nh8 Qf6 Qd6 Qh4 Bf6 Re8 Bg7 Qd8 Qc5 Re4 Be5 Rd4 Qe7 Rd2 Qd1 Nc2 Ka2 b1N Qc1 Nba3 Qd1 Nc4 Kb1 Nb2 Qc1 Kb8 a7+ Kb7 Qd1 Nb4 Qc1 Ka6 a8Q+ Kb5 Qb8 Ka6 Qc8+ Ka7 Nd3 Be2 Qh1 Bf1 Ne1 Nd1 Qb7+
B2nb1Q1/R1P3b1/1q2pBRq/1r1R2p1/QBkP4/qp2Pn2/1Q2K3/4Bn2 b - - 0 1 legal: proof: g4 b5 h4 g5 b4 d5 h5 a5 bxa5 f5 c4 Ra6 Na3 Rg6 c5 c6 Nc4 dxc4 gxf5 Re6 Nf3 Rg6 Nd4 b4 Nb5 cxb5 hxg6 Qb6 Qb3 Qc7 Qd1 Qd8 d4 Kd7 a4 Kc6 f4 Kd5 f6 h5 f5 b3 a6 b2 f7 b1N f6 e6 a5 h4 c6 h3 a7 b4 a8Q c3 a6 c2 g7 h2 c7+ Nc6 a7 b3 e3 Be7 f8B Nh6 g8Q Bd7 f7 Ng4 Bg2+ Kc4 Ke2 Nge5 Ra5 Nf3 Qd2 Be8 Rd5 Qd6 Bg7 Nd8 f8B Qb6 Bf6 Bd6 Ba3 c1Q Qb2 Nbd2 Bb4 Nf1 Be1 Be5 Ba3 Qa1 Bab4 Qa3 Qc6+ Qc5 Qa4 Qb6 Qg6 Rf8 a8R Rf7 Qg8 Rd7 Rg1 h1Q Ra7 Qh6 Rh1 Rd6 Rh5 Rc6 Rh2 Rc5 Bh1 Rb5 Rh3 Qg6 Rh6 Qh5 Rg6 Qh6 Bfe7 Bh8 Bf6 Bg7 Re5 N3d2 Ba8 Nf3 Rd5
4bQR1/4R2n/2PpK2P/2N4k/qr1Pnpp1/2bn4/2QN1b1N/Q2b1R1N b - - 0 1 legal: proof: f4 b5 a4 a5 b4 e5 fxe5 c5 g4 f5 Bh3 h5 Ba3 f4 axb5 Rh6 b6 Rf6 b5 Rf5 Bb4 cxb4 gxf5 Ba6 Kf2 Bc8 Bg4 hxg4 Kf1 Ra7 Ke1 Rc7 Qc1 Rc3 Qd1 Rh3 Kf1 Rh5 Ke1 Rh8 Kf2 Kf7 c4 g5 h4 d6 e4 b3 d4 b2 e6+ Kf6 h5 g3+ Kf3 g2 Kg4 a4 e5+ Kg7 f6+ Kh6 Kf5 a3 f7 g4 c5 a2 c6 Qc7 b7 Be7 f8Q+ Kh7 h6 Qa5 b6 Nd7 b8N Qc3 b7 Nc5 Na6 Qa3 b8R Bd7 Nf3 g1N Nh2 Ne2 Nd2 b1B+ Qc2 Nc1 Rf1 Ne4 Nc5 Be8 Rc8 Bf6 e7 Qa4 Ke6 Kg6 Rb8 Kh5 Re1 Bg6 e8Q Bh4 Qc8 Bg3 Qa6 Nd3 Rf1 Rh7 Rb7 Rf7 Re7 Ngf6 Rc7 Rd7 Qfc8 Rg7 Qb3 Nh7 Kd5 Bc2 e6 Rd7 e7 Qb4 e8N Be1 Ng7+ Kg5 Nh5 Bf2 Ke6 Bd1 Ng3 Kh4 Ra7 Rb7 Nh1 Kh5 Qc2 Qa3 Rb1 a1B Qh8 Rb6 Re7 Bc3 Qa5 Qb4 Qa1 Qa4 Qg7 Rb8 Rb6 Rb7 Ra6 Rb1 Ra8 Rb4 Rg8 Be8 Qf8
3qRQ1b/1p1rb1n1/R3QpN1/1pN1N3/nRP4r/bP4R1/K2pP3/4k1Q1 b - - 0 1 legal: proof: g4 e5 d4 c5 f4 h5 fxe5 d6 g5 f6 g6 Be7 Be3 Bf8 Bh3 Be6 Bg4 Bf7 gxf7+ Ke7 dxc5 hxg4 Bd2 Ke6 Ba5 Kd7 Bb6 axb6 Kd2 Kc6 Kc1 Kb5 h4 Kb4 c4 g5 a4 g3 h5 d5 e6 g2 e7 g4 e8R g3 a5 b5 h6 d4 b3 d3 Kb2 d2 a6 Ne7 a7 Nf5 h7 Na6 c6 Bg7 f8Q+ Nc5 Nf3 g1B c7 g2 c8Q Bd4+ Nc3 g1B Rh3 Be5 Kb1 Bd6 Qc6 Na4 Ka2 Bgc5 Qg1 Be7 Ne4 Bcd6 Nc5 Kc3 Qc8 Kc2 Qe6 Rc8 a8R Rc7 Rg3 Rd7 Nd3 Ba3 Nc5 Rg8 Ne5 Bh8 Ra6 Rg4 Ra5 Ng7 Ra6 Nb2 Ra4 Rh4 Rb4 Na4 Qg2 Bb2 Qg1 Nb6 Qff7 Bc1 Qd4 Kd1 Kb1 Bb2 Ra6 Na4 Ka2 Ke1 Qe3 Ba3 Qd4 Nf5 Qg8 Bg7 h8N Nd6 Qf8 Nf5 Nhg6 Bh8 Qe3 Ng7 Qg1+
2n2r1B/1B1Nr3/p7/Q1PNbQ1p/1n2kNr1/2q2brP/P1bnB3/1NK2Q2 b - - 0 1 legal: proof: d4 e5 dxe5 f5 e4 c5 b4 Bd6 bxc5 Nf6 e6 Be7 e5 Bf8 Nd2 Ng8 f4 g6 g4 Qe7 Nh3 Qg5 Be2 Qd8 Rb1 Qc7 Rb4 Qd8 Re4 fxe4 f5 g5 Rf1 Nf6 Rf2 Ng8 Rf4 gxf4 c4 Ke7 g5 b5 g6 d5 c6 h5 c5 a6 c7 d4 g7 d3 Nf1 f3 Kd2 b4 Ba3 e3+ Kc1 f2 Bb2 b3 Ng5 d2+ Kb1 Bb7 c8B Qd4 h3 Qc3 Qe1 d1B Nd2 Nc6 Qf1 Bc2+ Kc1 Nb4 Nb1 Bf3 Bb7 Rh6 Ba1 Rg6 Bb2 Rd8 Ba1 Rd4 f6+ Ke8 e7 Kd7 e8N Ne7 g8Q Rg4 f7 Bg7 f8Q Nc8 Ne6 Bf6 Bd3 e2 Nf4 Rg3 Qh8 R6g4 Nc7 Bg7 Ncd5 Bf6 Qd1 e1R Be2 f1R Qhh6 Bh8 Qb6 Bg7 Qa5 Bf6 Ng2 Ke6 Ngf4+ Kf5 e6 Ke4 e7 Be5 e8N Rfg1 Ba8 Rg8 Qf6 Rf8 Bb7 Rg4 Qf7 R1g3 Bb2 Rg7 Qd7 Re7 Qg4 Reg1 Qf1 R1g2 Qg5 Rg4 Ba1 R2g3 Nef6+ Kd4 Ng2 Bc7 Nd7 Qb2+ Kd2 Ke4 Ngf4 Qh8 Bg7 b2 Na3 b1N+ Kc1 Nd2 Nb1 Bb8 Ba1 Qd4 Bc3 Qe3 Bf6 Be5 Bh8 Qc3 Qf5+
1b4KQ/qnRNq2N/2P2Np1/1b3kr1/2rn3n/Rp6/1P1Qp1P1/r1RQ2Q1 b - - 0 1 illegal: No proof kernel
KB2k2b/2QNb2q/1qpp4/N2PB3/pQB2r2/P1P2QNp/n4p2/n4rB1 b - - 1 3 legal: proof: e4 f5 f4 g5 a3 b5 Ra2 b4 exf5 b3 f6 bxa2 b4 Bg7 f5 Bf8 g4 Bb7 Be2 Be4 h3 Nc6 Rh2 Bd5 Rf2 Bg2 Rf4 gxf4 g5 Bf3 Kf2 Bh5 Ke1 Bg4 hxg4 Nb8 Kf2 a1B Kf3 h5 Ke4 e5 Kd5 a5 d4 h4 b5 d6 f7+ Kd7 c3 f3 f6 e4 b6 h3 b7 e3 g6 a4 g7 Qe8 g5 Rh6 g6 Nc6 b8B Qe7 Bc4 e2 Nd2 e1Q Nb3 Bb2 Na5 Rh4 Ne2 Rf4 Ng3 Qg1 Be3 Nh6 g8Q Nf5 g7 Bc1 Qh7 Ra7 g8Q Bg7 f8N+ Ke8 Qe6 Bh8 Qe4 Rb7 Qdd3 Rb1 Nd7 Bd2 Qg7 Rf1 Qb1 Qf2 Qb4 Bc1 Qh7 Qb2 Bg1 f2 Qf3 Qb3 Qc5 Qb6 Qb5 Qg7 Qb4 Qg6 Qg7 Qh7 f7+ Kd8 f8B Ne3+ Ke6 Nc2 Kd5 Na1 Be7+ Ke8 Bf6 Rf5+ Be5 Bg5 Qg6+ Rf7 Qgb1 Rf4 Qc5 Be7 Qbb4 Nd8 Qc6 Ne6 Qb7 Nc5 Qc6 Ncb3 Qcc5 Qa7 Kc6 Nc1 d5 Na2 Qcb6 Qa8+ Qb7 Qa6+ Q7b6 Qb5+ Kb7 c6 Ka8 Qc5 Qa7 Qb6 Qc7
R2R2R1/3nB1B1/3nrP1p/K1R5/BR3NqP/1q1krp1p/P2q2r1/7R b - - 0 1 legal: proof: h4 a5 c4 g5 b4 b5 bxa5 d5 cxd5 b4 Na3 g4 Qb3 Bb7 Qe3 b3 d3 b2 Qh3 gxh3 Be3 Bc8 Rd1 f5 Bd2 Bg7 e4 Bf6 e5 b1Q Nc2 Qb2 Na1 Qxa1 exf6 e5 d4 e4 f3 e3 Bb4 Ba6 Bc3 Bd3 Bd2 Be4 fxe4 Qd6 Rh2 Qd7 Rh1 Qd8 g4 Kd7 e5 c5 e6+ Kd6 g5 f4 e7 e2 e8R c4 g6 f3 a6 c3 g7 c2 a7 c1R Bh6 Ne7 Kd2 Rc6 g8R Rc8 Rc1 Qb6 Rc5 Qb7 Bg7 Nf5 Re4 e1Q+ Kc2 h6 Bb5 Qe3 Ne2 Nd7 Ba4 Rc6 Nf4 Re8 a8R Qf2+ Kd3 Qag1 Kc4 Qg4 Kc3 Qb1 Kc4 Qd1 Kb5 Qb3+ Ka5 Rh7 Re2 Re3 Rb2 Qbc2 Rb3 Qfd2+ Rb4 Qb3 Bb5 Kc7 d6+ Kb7 d5 Rb6 Bh8 Rhe7 Bg7 R7e6 Rc3 Rc6 Rcc1 Rc2 Ba4+ Nb6 d7 Nd6 d8B Rb2 Bb5 Nd7 Ba4+ Nb5 d6 Qdd5 Rd4 Rg2 Rhe1 Nf8 Rb1 Kc6 Rb4 Kc5 d7 Nd6 Be7 Qd2 d8R Nd7 Rh1 Qc1 Ne2 Qd2 Rbc1+ Kd5 Nd4 Ke4 Ne2+ Kd3 Rc2 Qd1 Rc5 Qd2 Nf4+
5b1n/Rb1Pk3/1q1Br2P/1p5P/2B3K1/B1nbR3/pB1R3q/nrQBB3 b - - 0 1 illegal: No possible last move, all moves rejected
K2bN1R1/4n1n1/2p2RbN/4RPNr/k1p1R1Rp/rP1PR2B/2b1q3/4n3 b - - 0 1 illegal: No possible last move, all moves rejected
2qB2k1/BB1pBP2/1qN4b/6P1/3Np1n1/p2bB2N/1r1Pb2B/rr4QK b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 f4 b4 f3 b6 Kf7 b5 Nc6 b7 Nd4 b6 Nb5 exf3 Ke8 f4 Rb8 f5 Ra8 cxb5 g5 f4 h6 h4 Rh7 g4 Rf7 f6 Rh7 f5 Rh8 Ra4 h5 Rf4 gxf4 g5 Bh6 Rh3 Bg7 Rg3 Bf8 Rg4 hxg4 h5 Kf7 Ba3 e5 Kf2 a5 Be7 c5 Kg2 e4 b8B c4 b7 a4 b6 c3 Ba6 Bh6 Kh1 f3 Na3 c2 Nh3 c1Q Nc2 f2 Nd4 f1B Be5 g3 b8B Qcc7 b7 Bg7 Qe1 a3 Ba7 Be2 b8N Nh6 Nbc6 Ng4 B5d6 Qe8 Bf4 Qb7 Be3 Rb8 Qf2 Bh6 Qh2 Kg8 f7+ Kg7 Bd6 Qd8 f8B+ Kf7 Bfe7 g2+ Kg1 Qdc7 Qh1 Rf8 Bh2 Kg8 Bd8 Qa8 Be7 Rb2 Bd8 Bg7 h6 Qb6 h7+ Kh8 Bef4 Bh6 Be3 Kg7 h8B+ Kg8 Bhf6 Bb7 Na5 Qc8 Bfe7 Bc6 Bb7 Bcb5 Nac6 Bbd3 Bhb8 Nf2 Kh2 g1R Bbf4 Ra1 Qg1 Ng4+ Kh1 Rf7 Bh2 Rf6 Ne5 Rc6 f6 Rcc1 Nec6 Rcb1 f7+
R1N1B3/pr1Q4/nQP3Qr/3rQP2/2K3bN/6NP/1qkr4/qrb3N1 b - - 0 1 legal: proof: d4 f5 e4 c5 exf5 d6 dxc5 Be6 a4 Na6 a5 Nc7 a6 Rc8 axb7 Nd5 Qg4 Rc6 Qd1 Nc7 f4 g5 b4 h6 g4 Nb5 f6 Qa8 f5 Rb6 Bf4 Qd8 b8Q Na3 Qa8 Rc6 Rxa3 Ra6 Rg3 gxf4 g5 Rb6 g6 Rc6 Rg5 hxg5 Ke2 Kd7 Kd3 f3 c4 g4 b5 g3 h3 d5 b6 d4 g7 g2 b7 f2 b8Q Rh7 f7 Nf6 g8Q Qb6 Nc3 Ne8 Qh2 Nc7 Nce2 Bh6 Qc2 Bc1 Qf4 Na6 Qg6 Bd5 Qb3 e5 Qfg3 e4+ Kc2 e3 Kd3 Bf3 Qf4 Bg4 Qa3 Qb2 Ng3 e2 Qe5 e1R Qab8 Re2 Qb6 Rg7 Qa4 Rd2+ Ke4 d3 Kd5 Rh7 Qd1 Re6 f8N+ Ke7 Be2 f1Q c6 Rf7 c7 Rg7 Nf3 g1R c5 Rh7 c6 Rh6 Qg5+ Kf7 c8N Re7 Kc4 Rb7 Ng6 Qe1 Qb8 Rf1 Qh5 Kf6 Ngh4 Rg1 Qe8 Rf1 Ng1 Kg5 Qa8 Kf4 Qg6 Ke5 Bf3 Kf4 Qb8+ Qee5 Qd8 Ke3 Rh2 Qa5 Rg2 Qaa1 Qb6+ Nc5 Bd5 Re2 Rh2 d2 Bf7 Rfe1 Qd8 Na6 Nb6 Rf2 Be8 Ref1 Qa4 d1R Qa5 Bd2 Qbc7 Rb1 Qdc8 Bc1 Qae5+ Kd2 Qce6 Re2 Rf2 Kc2 Rf3 Rff2 Rd3 Bd2 Rd8 Bc1 Ra8 Rf1 Nc8 Rd1 Qef7 Rd5 Qb6 Red2 Qd7
R2q1rNN/2r4Q/4k1Pb/1K1N4/P1N2BP1/1n5b/3Q1Q1Q/2nbbqbr b - - 0 1 legal: proof: d4 a5 c4 e5 b4 g5 bxa5 d5 cxd5 g4 d6 g3 hxg3 Nd7 g4 Nb8 g5 Bf5 Bd2 Bg4 Bc1 Bc8 e4 f6 a4 Qd7 d5 Qd8 Bd3 Bh6 Ra2 Bf8 Rd2 f5 Bc2 Na6 Rd4 exd4 e5 Nb8 Be4 fxe4 Ke2 Kf7 f4 h5 a6 c5 f5 b5 d7 e3 Kd3 h4 f6 h3 d6 b4 Kc4 h2 a7 d3 g6+ Ke6 f7 b3 Ne2 b2 Nd2 b1Q Nc3 e2 Nd5 e1B Qh5 Nf6 Qh7 Bh6 f8Q Ng4 Qf2 Rf8 g3 Qa1 Kb5 Na6 Nc4 d2 Rf1 d1B Bf4 h1R Qh2 Qe7 d8Q Nf2 d7 Nd3 Qa5 Qh4 Qad2 Nc1 Rf3 Qd8 g4 Bb7 Rf2 Rc8 a8Q Rc7 Qa7 Qb1+ Nb2 Qd3+ Nc4 Qf1 Rf3 Nb4 Rh3 Nba2 Rh5 Nb3 Rf5 Rg8 Rf8 Nac1 Re8+ Qe7 Ra8 Rf8 Bg3 Be3 Bf4 Bg1 d8N+ Kd7 Nf7 Ke6 Ne3 Bg2 Nd5 Bh3 Nh8 Qf6 Qdf2 Qg5 Qa5 Qd8 Qad2 Qd3 Nf6 Qf1 Ng8 Nd3 Ne3 c4 Nd5 c3 Nb6 c2 Nc4 Kd5 e6 c1B e7 Ke6 e8N Kd5 Qc3 Ke6 Nef6 Be3 Nd5 Ndc1 Be5 Bf4 Qcd2 Bh6 Bf4
1Q2Bq2/p1nQ4/1r2b1QR/1R3b2/1q2P2K/Pq5R/RPNb4/Q1k1nrn1 b - - 0 1 illegal: No possible last move
Q3B2N/1RkPp3/1r2Pb1K/nQ1QPq1n/3N4/nb4N1/nN4Q1/1r2nr2 b - - 0 1 legal: proof: f4 b5 c4 g5 a4 d5 axb5 Na6 cxd5 Qd7 e4 Qg4 f5 Nb8 e5 Qh5 Qe2 Qh6 Qd1 Qe6 fxe6 Bh6 Bd3 Bg7 Bf1 Bf8 g4 h6 Ra4 Rh7 Rf4 Rh8 b4 Bb7 Bb2 Ba6 Bd4 Bc8 Bf2 Bd7 Bh4 gxf4 g5 Bc8 g6 Nd7 Bf6 Nb8 Bg5 hxg5 Kf2 Kd8 Kf3 f5 h4 a5 d4 c5 h5 g4+ Kg2 c4 d6 g3 Kh3 a4 Kh4 a3 Kg5 a2 d5 a1N h6 g2 h7 f3 b6 f4 b5 f2 d7 c3 g7 c2 b7 c1N b6 f3 Ne2 g1N Nd2 Na2 Ng3 Ra6 Nc4 Nc6 b8Q Nc2 b7 Nf6 g8Q Na3 Nb2 Nh5 Bb5 f1Q Qa8 f2 b8Q Rb6 Rh4 Na5 Rb4 Qh3 Qg6 Rg8 h8N f1R Qd2 Rg7 Kh6 Nf3 Qe4 Qg4 Qg2 Qf5 Ba4 Ne1 Qd3 Ra6 Qbb5 Kc7 d8N Rb6 Nc6 Bb7 Nd4 Bc6 Qba6 Bb7 Be8 Bc6 Qde4 Ba4 Qb5 Bd1 Qaa6 Bb3 d6+ Kb8 d7 Kc7 Qed5 Rg6+ Kh7 Bg7 Qaa8 Bf6 Qh1 Rg4+ Kh6 Rh4 Qhg2 Rhh1 Qba6 Rd6 Rb8 Rb6 Qab5 Nf3 Rd8 Rb1 Rb8 Ne1 Nf1 Rg1 Ng3 Rf1 Rb7+
N2n1rn1/QB2R2r/1PPp2qQ/6QB/K1B1P2b/b2QBq2/5r2/1bk1b3 b - - 0 1 illegal: No possible last move, all moves rejected
QKQ3N1/Bp3r2/1n1B2B1/1bp2q2/3qP1R1/1Q2b1QP/qP1b1Br1/1nk5 b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 d5 c4 Rh6 cxd5 Rh8 gxh5 a5 a4 Qd7 Ra3 Qd8 Nc3 Nh6 Na2 Ng8 Nb4 axb4 Qb3 bxa3 Qc2 Qd7 Qd1 Qd8 Kf2 Ke7 Kg3 c5 Kf4 f5 d4 a2 a5 a1Q a6 g6 e6 Kd6 h3 Nc6 e7 Qa3 e8Q Nh6 a7 Na5 Qe3 Nf7 h6 Ng5 h7 Qa2 Qdb3 Bg7 Nf3 Rg8 h8B Bd7 Rg1 Bh6 Nh2 Nc4 Ng4 Bb5 Qg3 Nb6 Nf6 Rg7 e4 Rf7 Ng8 Qf6 Be3 Nf3+ Qg5 Raf8 a8Q Nd2 Rg4 Nb1 Be2 Rg7 Bf2 Rff7 Rg2 Qd8 Bh5 Qd7 Rg4 Qd8 Kf3 f4 Qh4 g5 Bg6 Qf6 Qg3 Qe5 Kg2 f3+ Kh2 Kd7 d6 Kc6 d7 Qd6 d8B Qd5 Be3 f2 Bc7 f1Q Bd6 Qfc4 Bf2 Qf5 Bb8 Qcd5 Ba7 Qde5 d5+ Kd6 Rf4 Qd4 Qc8 Ke5 d6 g4 d7 Bg5 d8Q Bh6 Qa8 Bg5 Qdc8 Bh6 Qgd3 g3+ Kg2 Bg5 Kf3 g2 Kg3 g1B Rg4 Rf6 Qf3 Rgf7 Bg7 Bd2 Bf8 Rg7 Qfe3 Rff7 Qf3 Qe3 Bd6+ Kd4 Qbe6 Kd3 Qe5 Kc2 Qf4 Qd4 Qb3+ Kc1 Qff3 Qe6 Qfe3 Rc7 Kf4 Qec4 Kf5 Qf1 Ke6 Rcd7 Qg3 Rdf7 Be1 Bge3 Bf2 Rf3 Bh5 Rg5 Bg6 Rf8 Ke7 Rf6 Kd8 Rf7 Be1 Qf5 Bf2 Bd7 Kc7 Ba4+ Kb8 Bb5 Rh4 Rg4 Qh2 Rg1 Rg4 Rg2 Qg3
Kn5N/P1Nbr1q1/3Qnb2/b4r2/1NQp1P2/p2n1Q2/N1Bb1P1R/5kQ1 b - - 0 1 legal: proof: g4 c5 d4 a5 dxc5 f5 b4 h5 gxh5 f4 b5 f3 exf3 Rh7 f4 Rh8 a4 b6 Ba3 Ba6 Bb4 axb4 a5 Bc8 a6 b3 Ra5 bxa5 Ke2 Kf7 Kd3 Ke6 Ke4 d5+ Kd4 Kf5 c4 g5 h4 a4 h6 b2 a7 a3 b6 g4 c6 g3 Kc5 Ke4 b7 e5+ Kb5 d4 h7 g2 h5 Qg5 Kb6 Qg7 h6 Nf6 c5 Bd7 c7 Ne8 c8Q Nc7 c6 Ne6 c7 Bb4 Nf3 g1B Rh2 Rf8 h8Q Bd2 h7 Rf5 Bg2 Kd3 Qcg8 e4 c8Q e3 Nc3 b1N Na2 e2 Ng5 e1B Qf3+ Be3 Bh3 Nc3 Qc4+ Kd2 Qf8 Ne4 Qhg8 N4c5 h8N Nd3 Bg4 Rd5 Qd6 Rf5 Rh6 Bh2 Bh5 Nb2 Bg6 Bg3 Rh2 Bh4 Bh7 Nd3 Bg6 Nf8 Ne6 Bf6 Nc7 Ne6 Bh7 Qh6 Qg1 Qg7 Qfh1 Ke2 Bg6 Na6 b8N Ba5+ Kb7 Bed2 Nc6 Re8 Ncb4 Re7 Ka8 Nb8 Be8 Bc8 Ba4 Bd7 Qb7 Re8 Bc2 Re7 Qg3 Ke1 Qbf3 Kf1 Qg1+
1B4Qk/RqQb3q/1n1r1b2/n2P2p1/rN4pP/p5KQ/2B1Q1P1/1B3rB1 b - - 0 1 legal: proof: c4 b5 a4 c5 axb5 d5 cxd5 e5 f4 Bb7 fxe5 Ba6 b6 Bc8 b4 h5 b5 Qd7 Ra4 Be7 Nc3 Qd8 Rg4 hxg4 Na2 Bf8 Nb4 cxb4 Kf2 g5 d4 a5 e4 f5 h4 Kf7 e6+ Kg7 b7 b3 e5 f4 b6 f3 d6 a4 d5 b2 e7 b1Q e8B Qc7 d7 Qb3 d8Q Qe3+ Kg3 f2+ Qf3 Be6 Ne2 Ra7 Bg6 Qd6 Bc2 Nd7 b8B Ra8 b7 Rh6 Nd4 Qc7 Nc6 Nb6 Nb4 Be7 Bfd3 Qe4 Be3 f1R Bg1 Kh8 Qd7 Qc8 Qc7 Bd7 e6 Bf6 e7 Qh7 e8Q a3 Qee2 Ra6 Bb1 Ra7 Bdc2 Ne7 Qc5 Ra6 Bg6 Qc6 Bh2 Rh5 Bf4 Rc1 b8Q+ Qg8 Kf2 Bc3 Qh3 Rh6 Kg3 Ra4 Rd1 Qa8 Bg1 Nc6 Qd8 Ba1 Bb8 Na5 Bgf5 Rd6 Qcc2 Be8 Rf1 Qh7 Qcc8 Qaa7 Bfc2 Bd4 Rf4 Rf1 Rf7 Bf6 Rc7 Qa8 Ra7 Qc6 Qdc7 Qb7 Qce6 Bd7 Qg8+
1r6/4p2k/pp3Q1p/Bb1rP1qB/P1NnQ3/1B3P1Q/2b2QB1/nb3KbR b - - 0 1 illegal: No proof kernel
2N5/1kQ2rr1/2r2bPp/1q3Q2/N3Bb1n/Q1pP1QB1/3Q2Pb/2QK4 b - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 b5 a4 Ba6 axb5 a4 b6 a3 b3 Be2 Nc3 Bb5 Nb1 Ba4 bxa4 Qd6 Qf3 Qd7 Qd1 Qd8 h4 g5 f4 Qd7 f6 Qd8 f5 Nc6 Rh3 Nd4 Re3 Ne6 Ra2 Bh6 Rc2 Bg7 Rc4 Bf8 Rf4 gxf4 Qb3 fxe3 Qd1 Ng5 hxg5 Qd6 Be2 Qd7 Bf1 Qd8 g6 Kd7 f7 Kc8 f6 c5 d6 e5 b7+ Kb8 d7 a2 a5 a1B a6 c4 Nf3 e4 Bd3 h6 Nh4 e2 Nf5 Bd6 f8Q Ra7 f7 Ne7 Nc3 Qe8 Na4 Bf4 Nd6 Bf6 Nc8 c3 d8Q Nf5 Qa3 Nh4 f8Q Rg8 Qfc5 Qd7 Qf5 Qb5 Qd4 Kc7 b8Q+ Kc6 Qg1 Rf7 a7 Rgg7 Qbd6+ Kb7 Qc7+ Ka6 Bc4 Bh2 d3 Bf4 Qd2 Bh2 Kf2 e1B+ Ke2 e3 Kd1 Beg3 Bd5 Bf4 Be4 e2+ Kc2 e1R Qf1 Re3 Kd1 Rg3 Qf3 Rg5 Qa1 Qb7 Ba3 Qc6 Qac1 Qb5 Bc5 Rg4 Bf2 Rg5 Bg3 Rh5 Q5g4 Rc5 Qf5 Rc4 Qd6+ Rc6 a8Q+ Ra7 Qab8 Rad7 Qda3 Rdf7 Qbd6 Kb7 Qc7+
2N2n2/PKR4N/1N4Rb/2R1r1b1/1PNr3N/b2rr3/b2pP3/BRb1k3 b - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 dxc5 a5 a3 b4 Be3 b3 Bf4 Qb6 Bc1 Qb4+ axb4 Ba6 Qd2 Bb7 Qd1 Bc8 Bh3 e5 Ra2 f5 Qd6 a4 Bf4 a3 Kf1 Nc6 Bc1 Na5 Ke1 Nc4 Bg4 fxg4 Ra1 a2 Qd4 Na3 bxa3 exd4 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 Kb5 Ke4 Kb6 d5 c4 g5 h4 b2 f4 d3 c6 d2 c7 Ke3 h6 Kf2 f5 d1R a4 g3 a5 g4 h7 g2 a6 g3 f6 d4 h5 d3 h6 Bg4 c8N Ke1 c5 Be6 a7 Ne7 f7 Ng6 Nd2 b1R c6 Rb3 Rb1 a1B c7 Bb2 Kb7 Ba3 Nb6 Rd8 c8N Rd4 Rh5 Rc3 Rg5 Ba2 Bb2 Be7 Rc5 Nf8 Ndc4 Bg5 Ba1 Rg8 Nh3 g1B h8R g2 h7 B1e3 Nf4 g1B Ng6 Bec1 Nh4 Bg1e3 Rc7 Rg6 Rg8 Re6 h8R Re5 Rg6 Bh6 Rh7 Beg5 Rhg7 Rde4 Rgc6 Re3 Rgg6 Rd2 N4d6 Rc4 Rc5 Rd4 Ndc4 Rb2 Re6 d2 Rd6 Rbb3 Rg6 Nh7 f8N Rbd3 Nfd7 Nf8 Nf6 Rd8 Nh7 R8d7 Na4 R7d4 Nab6
1R2K3/1b2QRPR/2pP4/rN2q1Q1/2bn2R1/3Rp1N1/1P2R2p/1n1krn2 b - - 0 1 legal: proof: c4 a5 a4 b5 axb5 d5 cxd5 f5 e4 a4 exf5 a3 Bd3 a2 Na3 Ra5 Be4 Ra4 Bd3 Ra8 g4 g5 h4 Bh6 f4 Nd7 f6 Nb8 f5 Bd7 Bb1 axb1B d3 Kf8 Bf4 gxf4 g5 Bc8 g6 Bg5 hxg5 Ke8 Kd2 Kd7 Kc3 Kd6 Kd4 h5 f7 c6 f8R h4 b6 e6 g7 f3 f6 f2 b7 f1N g6 h3 f7 Qc7 Ne2 Nh6 g8R Na6 b8R Bb7 Qd2 Ra7 Qg5 Nb4 Ng3 Ba2 Re1 Bc4 Re2 e5+ Ke4 Kc5 d6 Ra5 d7 Nf5 d8R Na2 d4+ Kb4 d5 Kb3 Nb5 Nd4 Rd6 Nc2 Kf5 e4 Kf6 e3 Rd7 Qf4+ Ke7 Nc3 Ke8 Nb1 d6 Qe5+ Re7 Nfd2 Rd1 Nf1 Rdd2 Nd4 Rd3+ Nc3 Rg7 h2 Rh7 Rg8 Rh4 Rg7 Rfh8 Rg8+ f8Q Rg7 R8h7 Rf7 Rd1 Nb1 g7 Rf6 Rg4 Rg6 Ree1 Kc2 Rd3 Rf6 Re2+ Kc1 Rb3 Kd1 Qf7 Rg6 Qe6 Rf6 Rf7 Rf5 Qee7 Rf2 Rc2 Re2 Ra3 Re1 Re2 Ra8 Rc3 Ra5 Rd3+
K4B2/3R2B1/nN1Pnb2/1bNnqq1n/2P3Br/kBP5/4BN1n/q4r1N b - - 0 1 legal: proof: e4 c5 h4 d5 a4 a5 Qg4 f5 exf5 g5 Qb4 axb4 hxg5 c4 b3 d4 Ra2 d3 bxc4 Bg7 c3 Bf8 Rc2 dxc2 Ke2 Kd7 Kd3 Kc6+ Ke4 Kc5 f4 b5 g4 h5 d4+ Kc6 a5 e5 g6 h4 g5 b3 g7 b4 g6 h3 a6 h2 a7 b2 d5+ Kb6 f6 Ka5 d6 Ka4 Kd5 b3 f7 e4 f5 e3 f6 e2 Nh3 e1N Nf2 Qe7 Nd2 b1Q Nde4 b2 Ng3 Na6 Kc6 Bd7+ Kb7 Rh4 Be2 Qe5 Bh6 Be7 f8N c1N f7 Ncd3 Ne6 Nf4 f8B Qa1 Nc5+ Ka3 Rf1 Bb5 Ngh1 Re8 a8N b1Q Nb6 Nf6 g8B Qbf5 g7 Nf3 Be6 N6d5 g8B Bf6 Bhg7 Ra8 Bd7 Ne6 Bh7 Re8 Ka7 Re7 Ka8 Rf7 Ng3 h1N Re1 Qg5 Bc2 Nh2 Bb3 Qef5 Nge4 Ng3 Nh1 Qe5 Nef2 Nh5 Rg1 Nd8 Bh3 Qgf5 Rg5 Ne6 Bhg4 Rb7 Bh8 Rh7 Rg7 Rh6 Rd7 Rg6 Bgf3 Rg1 Bhg7 Rf1 Bg4
1bQN2nQ/1BBn1B2/3P1BbP/4p3/4br1P/KN6/2qp2qk/Br1B2q1 b - - 0 1 legal: proof: b4 c5 d4 h5 a4 e5 f4 b5 axb5 h4 fxe5 h3 d5 Ne7 Ra4 Rh5 gxh3 Ng8 h4 Rh7 h5 Rh8 e4 Ke7 h4 Nh6 e6 Qc7 e5 Qd8 Ra6 Ng8 Rh3 Nh6 Rd3 Ng8 Rd4 cxd4 Rc6 Ke8 e7 d6 Rc3 Kd7 Re3 Kc7 Re2 Kd7 e6+ Kc7 Re5 dxe5 Be2 Kd6 Bd3 Rh6 Bf1 Rh8 Kd2 a5 e8Q f5 c4 g5 Kc2 g4 Kb3 a4+ Ka3 d3 e7 f4 c5+ Kc7 c6 Kd6 b6 g3 c7 g2 b7 f3 h6 f2 b5 Bf5 c8B Be4 b6 Qc7 Qg4 Nd7 Nh3 g1Q b8B Qg2 Be2 f1B Ba7 Rb8 b7 Qc2 Bd4 Rh7 Bg5 Rf7 Bb2 Rf4 Nd2 Bg6 Nb3 d2 Bd1 Bfd3 Qd8 Bde4 e8B Be7 Bf7 Bf8 Kb4 a3 Bf6 a2 Ng5 a1Q Ne6 Qa7 Qe8 Qag1 Ba1 Be7 Ka3 Bd8 Na5 Bc7 Nd8 Kc5 Nb3+ Kc4 d6+ Kd3 Nc5+ Ke3 Nb3 Kf2 Qf5 Kg3 Qf8 Ne7 Qh8 Ng8 Qe6 Kh2 Qc4 Ra8+ Qa6 Ra7 b8B Rb7 Qc4 Rb5 Bb7 Rb4 Na5 Rb1 Nb3 Bb6 Qc8 Ba7 Bc7 Bb8 Qg7 Bh5 Qh7 Bhg6 Qh8
2B1N2N/B3Bqp1/K1nP2nN/2q2n1r/1b2bPBq/p4B2/6PQ/1krN4 b - - 0 1 illegal: No proof kernel
k3B3/P1qN1K2/2N1p3/nnn2N2/1Pp1R3/1N3Rq1/1r1R1bbP/r2R1qN1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 g4 f5 e4 h5 exf5 Rh6 gxh5 Rh8 b4 Bd7 Qb3 Bc8 Bb2 Rh6 Bd4 Rh8 Bb6 a4 Ba5 axb3 a4 Qd7 Bb6 Qd8 a5 Kd7 a6 Ke8 Ba5 b6 Kd1 bxa5 Ke2 Rh7 Ke1 Rh8 f4 Kd7 Kf2 c5 Ke3 Kc7 Ke4 g5 Ke5 g4 d4 e6 d6+ Kb6 d7 Ka7 d5 b2 d6 g3 h6 g2 h7 a4 f6 a3 f5 a2 f7 Qb6 d8N Qb7 d7 Ne7 Kf6 Nec6 Nd2 b1N Nb3 Na3 Bb5 c4 Re1 Bc5 f8R a1Q+ Kf7 Rg8 h8N Qc7 f6 Bb7 Ng6 Bf2 Re4 Qf1 Nh4 Na5 Nf5 Rg3 Ba4 Rc3 Bb5 Rc2 Ba4 Rb2 Bb5 Qe5 Ba4 Nb5 Nc6+ Kb6 d8R Nd7 Nd2 Qb8 Nb3 Nc5 Rd3 Qd8 Rf3 Qd6 Rd8 Qe5 Rd2 Qc7+ Kg6 Ra7 f7 Ra8 f8N Ra7 Nh3 g1Q+ Kf6 Qgg3 Ng1 Qcf4 Kf7 Qc7+ Nce7 Ra8 Nd7+ Ka7 Nbd4 Rg8 Nec6+ Ka8 a7 Rg6 Nb3 Rg5 Ne3 Rd5 Nf5 Re5 Ref4 Re1 Re4 Ra1 Ne2 Qfg2 Rhd1 Qf1 Ng1 Qfg2 Nb8 Bc8 Rfe3 Rba2 Rf4 Bb7 Ree1 Bf3 Ree4 Nc3 Bb5 Rb2 Ba4 Qd8 Nf6 Qf1 Be8 Qc7+ Nfd7 Bg2 Nc6 Nb5 Rf3
B3r3/b2KP2P/B2b2n1/4q1rn/1B2B3/4PBQ1/1nN1Qpbp/3nN1Bk b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 fxe5 Qb6 d4 Qc7 dxc5 Qd8 b4 h6 g4 Rh7 h5 Rh8 Rh4 Ke7 Ra3 Ke8 Rg3 gxh4 g5 Nf6 g6 Ng8 Rg5 hxg5 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 Kg4 c4 Kg3 c6 Kh2 c7 a5 c5 f5 e6 h3 e7 a4 Kd6 a3 h6 a2 g7 a1N h7 f4 c6 f3 b6 g4 b7 g3 Ba3 g2 Qc2 Nf6 g8B Nb3 Bd5 Rg8 Be4 Kh1 Qd3 h2 b5 Nh5 b6 Nc5 Qc2 Nd3 Bb4 Bg7 Na3 Nb2 Qd3 Bh8 Nc2 Rg5 Qd2 Bd4 e3 Qh8 Ba6 Qg7 Qe2 Qh8 Nh3 g1B Nf4 Bf2 Ng2 Qg7 Qd3 Be1 Qe2 Bec3 Nge1 Be5+ Kc5 d5 Kb5 Bh3 c8B d4 c7 d3 Bg4 d2 c8B Nc6 b8Q d1N b7 Bg3+ Qe5 Bg2 b8B Bf4 Bcb7 Bd4 Bc7 Re8 Ba8 Ba7 Bcd6 Nb8 Bc7 Nd7 Kc6 Nf8 Bcd6 Ng6 Kd7 Qh8 Qg7 Bg3 Qg8 Bf2 Bg3 Qe5 Bh4 Bg3 Qg7 Bf4 Bf2 Bg3 Bg1 f2 Qg8 Qc5 Qg7 Bd6 Bgf3 Qa5 Qe5 Qd5 Qf4 Qe5 Qg3
2q3Rr/Bq3pnB/7n/2P1pBq1/P1b2Brk/r1R2P1n/2R5/BR2K1Q1 b - - 0 1 legal: proof: d4 c5 b4 a5 bxa5 g5 e3 d5 dxc5 d4 Qh5 d3 Qe2 Bg7 Qd1 Bd4 exd4 Qb6 Qd2 Qc7 Qd1 Qd8 Nd2 h5 Ndf3 g4 Kd2 Rh6 Ne5 Rh8 f3 g3 Ng4 Nf6 Nf2 gxf2 Qe2 Ng8 Qe1 Bd7 Qd1 Bc8 g4 Qd6 g5 Qd8 Nh3 Ra6 Nf4 Rh7 Nd5 Ra8 Ne3 Rh8 Ng4 hxg4 c4 b5 h4 b4 a4 g3 d5 b3 a6 g2 a7 g1R h5 b2 c6 b1Q g6 e6 h6 Ke7 g7 Kf6 h7 Kg5 c7 Nc6 d6 Ba6 c8B Nd4 d7 Nf5 Rh2 Rb8 a8R Ngh6 g8R+ Ng7 c5 Rb4 Ra3 Rgg4 Rc3 Bc4 Rb8 Rb3 Rb6 Qf6 d8B Ra3 Rb2 Qe7 Bb6 Qc7 Rg2 Kh4 Ba7 Qb8 Rbc2 Q1b7 Rg1 Qg3 Be2 f1Q Rh1+ Qfh3 Qg1 Qf4+ Ke1 Qg5 Bf4 d2+ Kd1 Qa6 Bd3 Qb7 Ke2 d1N Ke1 Nf2 Bf5 Qh2 Bd7 Nh3 Bc6 Qd8 Bce4 Qg2 Re8 Rg8 h8B Qdc8 Rd8 Nh5 Bd4 Rh8 Rg8 e5 Bh7 Ng7 Bef5 Qf8 Re3 Qd8 Ba1 Qg5 Rec3 Qc8 Rc1 Qb2 Rh2 Qb4 Rhc2 Qbb7 Rb1
1N2N1r1/1np2Q2/1bq5/pkP3b1/PB1b1b1B/Pq6/1N6/BKbBNb1B b - - 0 1 illegal: No possible last move
1K1N3N/pbN1p3/1n1P4/2q1B2p/2N3r1/P2Rq1P1/1b1BrBr1/B2B1k1n b - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 c5 b4 f5 exf5 h4 bxc5 h3 g3 Qc7 Bd3 Qd6 Bf1 Qd8 a3 g6 Qf3 Qa5 Qg2 hxg2 h4 Bd7 h5 Qc7 h6 Bc8 Rh5 gxh5 Kd1 Qa5 Nf3 Nc6 Ba6 Nd4 Nc3 Kd8 Bb2 Nf6 Rc1 Nb5 Nb1 Ng8 Ke2 Nc7 Rh1 Kd7 Ng1 Ke8 Ke1 Qb6 Bd3 Na6 Bc1 Nb8 Bf1 Qd8 Ke2 Kd7 Kf3 b5 Ke4 b4 f4 b3 d4 b2 f6 Nc6 h7 Kc7 f7 Bh6 f8B Bg7 f5 Kd7 f6 Qb6 d6 Ke6 d5+ Kd7 f7 Qa6 Be3 Qa5 Ne2 g1Q Nd2 b1R Bf2 Qb5 Nf4 Qb3 Ng6 Nd4 Be2 Nh6 Nc4 Ndf5 Bd1 Bb2 Bg7 Bb7 f8B Ng4 Be5 Rd8 Bh6 Rhg8 Bd2 Nfe3 h8B Rc1 Bhf6 Rc2 Nh8 Rdf8 Bg7 Rf6 Rh4 Re6 Rh1 Ng2 Kf5 Qe3 Bgf6 Nf4 c6+ Kd8 c7+ Kd7 c8N Rg7 Bfe1 Nf2 Rh2 Nh1 Bf2 Rg4 N8b6+ Kd8 Na8 Kd7 Nc7 Qc5 Bec3 Re2 Bfe5 Qe1 Bg1 Rg2 Bf2 Qee3 Bcd4 Bc1 Ba1 Bb2 Bdc3 Re2 Bd2 Kc8 d7+ Kb8 d6 Nd5 Ke6 Nb6 d8N Kc8 Kf5 Kd7 Ndf7 Kc6 Ke6 Qa5 Nd8+ Kc5 Kf7 Qc3 Ke8 Qb4 Na8 Kd5 Nc7+ Ke4 Rh4 Kd3 Rh2 Na4 Kd7 Qbc5 Rh4 Bc6+ Kc8 Nb6+ Kb8 Bb7 Ba4 Re1 Bb3 Ke2 Bd1+ Kf1 Rh2 Re2 Rh4 Rg7 Rd4 Rg4 Rd3
1K6/RRNN2N1/pRp2N2/br1n1Q1R/k1Pb2n1/Pb6/P1pq4/3nNb2 b - - 0 2 legal: proof: g4 h5 gxh5 f5 e4 a6 exf5 Rh7 Bc4 Rh6 Bf1 Rh8 Nh3 b5 Ng1 Ra7 Qg4 Rb7 Qf3 Rh7 Qd1 Rh8 Nc3 Rb6 Ke2 Rg6 Nb1 Rg3 Ke1 Ra3 bxa3 d5 c4 d4 Bb2 Nf6 Bc3 dxc3 Qc2 Ng8 Qc1 Nh6 Qd1 Ng8 d4 e6 d5 Rh6 d6 Rh7 Bg2 Rh8 Bd5 exd5 Ke2 Kd7 Ke3 Kc6 Kf4 g5+ Ke5 b4 f4 g4 h4 g3 f6 c2 f5 d4 h6 d3 h5 d2 f7 b3 f6 g2 d7 b2 h7 Ne7 h6 Bb7 Rh5 Nd5 Qf3 d1B Nc3 b1N Nb5 Bb4 f8N Ba8 f7 Kc5 Qf5 Nbc3 Rb1 Qh4 d8N Kb6 Nd7+ Ka5 f8N Bc6 Nf6 Ka4 N8d7 Be2 Ne6 Qe1 Ng7 Qd2 Nf3 g1B Ne1 Nd1 Rb3 Rg8 h8R Bf1 h7 Ba5 Rh6 Rc8 Rg8 Ba7 h8R Bd4+ Ke6 Rd8 Rf8 Rc8 Rf7 Rf8 Rh5 Rd8 R8h6 Rc8 Nf8 Nd7 Rg6 Ne5 N8d7 Rb8 Rb2 Nb6 Ke7 Rb7 Kd8 Nd5 Kc8 Ng4 Na7 Rb3 Nb5 Re3 Kb8 Re5 Nd6 Bb5 Nde8 c6 Nc7 Re3 Rgh6 Re5 Rh7 Qe2 Na8 Nge3 Nge8 Ne7 Nf8 Qd2 Qe4 Ng4 Qf5 Rc5 Rb1 Nd5 Re7 Bd8 Reg7 Ka5 Ra7 Ba4 Rhb7 Bb6 Rb4 Bb3 Ng7 Bd8 R4b5+ Ka4 N8d7 Ba5 R5b6 Rb5 Nc7
kRR1Kb2/P3Pn1b/R2rQqn1/4P3/1b2q3/q4RQ1/1nB1b2B/3Q2Qr b - - 0 1 illegal: No possible last move, all moves rejected
NKn1r3/1Q1qqr1N/6Q1/B2NP3/3r1Pp1/1B2N1q1/P1b2kBq/b4nB1 b - - 0 1 illegal: No possible last move
3r1QB1/1BRrnn1Q/7B/QqP1b3/Pb1P1b1R/1K3b2/Qp5n/B5kq b - - 0 1 legal: proof: e4 d5 b4 a5 c4 h5 g4 f5 exf5 c6 gxh5 Kf7 Na3 Ke8 Nc2 c5 Nf3 Qd7 Ne5 Qd6 bxa5 Qd7 Nb4 cxb4 c5 Qd8 Nc4 dxc4 f4 Kf7 d4 Kf6 Kd2 e5 Kc2 b5 h4 g5 a4 b3+ Kc3 b4+ Kb2 e4 a6 c3+ Kb1 g4 h6 g3 h7 b2 Ka2 b3+ Ka3 b1Q a7 c2 h5 g2 h6 g1N Qd2 e3 Bb2 c1B Qd3 e2 Qc2 e1B Bc4 Qe8 Rh4 Ne7 Bg8 Nf3 Qf2 Qe4 Rb1 Bg7 Qd2 Nbc6 Qa5 Bcd2 Ba1 Nd8 Kb2 Rb8 a8B Nf7 Bb7 Nh2 Ka3 Bg3 Rh1 b2 Kb3 Bc3 Rf1 Qh1 Re1 Nc6 Re7 Bb4 Rc7 Bd7 Rh5 Rd8 Rh4 Ke7 f6+ Ke6 f5+ Kd5 Rh3 Ke4 Rh5 Ke3 Rh4 Nfe5 f7 Kf2 f8Q Kg1 f6 Bf4 f7 Bh3 Qe7 Rd6 f8B Bg4 Qe6 Bf3 Kc2 Nd7 Qa2 Nde5 Be6 Bg2 Kb3 Ne7 Bed5 Rg8 h8Q Qb5 h7 Bf3 Bc4 Bf6 Bh6 Rgd8 Qf8 R6d7 Bg8 Nf7 h8Q B6e5 Qh7
2qrb2N/1Q1k1bPr/2rb4/4q1R1/pNP2NP1/KnQN1Q2/QR2n3/4r3 b - - 0 1 legal: proof: e4 e5 a4 c5 h4 b5 axb5 g5 hxg5 f5 d4 Nc6 Be3 Nb8 Bd3 Qf6 dxc5 Qb6 Bd4 exd4 e5 Qd8 Be4 fxe4 Kd2 h5 Kc1 a5 g4 d5 b4 a4 Kb2 d3 f4 d4 g6 d2 g7 h4 c6 h3 c7 e3 f5 e2 b6 e1R b5 d3 e6 h2 b7 Bc5 b6 Nf6 e7 Rh7 Nf3 Ng8 f6 Rh8 f7+ Kd7 f8N+ Kc6 e8Q+ Nd7 b8Q Rh7 b7 Bd6 Nc3 Nf6 Qf7 Ra6 Qa2 Nh5 Ne2 Nf4 Rb1 Nc5 Ka3 Bd7 Rb2 Be8 Ng6 Kd7 Nh8 Qc8 c4 Rc6 Ne5+ Ke7 Qc2 d1R Qc3 d2 Nd3 Kd7 Qa8 Bf7 Rf1 h1B b8Q Be4 Qbb7 Beg6 Rh1 Be8 Rh5 Bgf7 Rg5 Nb3+ Nb4 Ke6 Nc1 Kd7 Nd3 Ne2 Qba6 Rc5 Qf3 Rc6 Qb5 Rb1 Qb7 d1Q Nc1 Qd4 Nd3 Qd8 c8N+ Qc7 Qc1 Qe5 Qc3 Rbd1 Ne7 Rd2 Neg6 Rdd1 Qb6 Qc8 Ngf4 Ke7 Ne6 Bc5 Nc1 Rd8 Nd3 Kd7 Nef4 Bd6 Qb7+
3N3r/r1rP2kn/4QQ2/1nP2r1Q/bR3q1p/Q1q2R2/Nb1P1K1b/N5N1 b - - 0 1 illegal: No possible last move, all moves rejected
1k1K1B2/QP2N3/4bN2/r3PN1b/p2B1QP1/1N1rpn2/Br1b1q2/3B2qn b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 e4 f6 g4 Be6 b4 Bf5 d4 Be6 d5 Bc8 Ra3 Kf7 Rd3 Ke8 Rd4 exd4 e5 f5 Rh3 Be7 Re3 Bf8 Re4 fxe4 Kd2 Kd7 f4 a5 f5 c5 f6 h5 b6 h4 b7 c4 f7 d3 Kc3 h3 Kd4 a4 Kc5 e3 b5 c3 g6 d2 g7 h2 b6 h1B Nf3 c2 Nd4 Qh4 Bb2 Nh6 g8B Qf6 Nf5 Nc6 b8N+ Kd8 b7 c1R+ Kb6 Bg2 d7 Bb4 f8B Rc3 Qf3 d1Q Be2 Rd3 Bd4 Qg1 Qf4 Ra5 Bd1 Be4 Nd2 Qh4 Bf7 Qhf2 Nb3 Bd2 Bg8 Ne7 Bf7 Ng6 Kc6 Nh4 Kd6 Bc1 Ke6 Kc7 Ke7 Bd2 d8N Nf3 Nd7 Rh7 Nf6 Be6 d6+ Kb8 d7 Bc6 Ke8 Bcd5 Bg8 Bf7+ Ke7 Bh5+ Bf7 Be6 Nc6+ Kc7 Ke8 Rh8 Nce7 Kb8 Kd8 Rh7 Nd6 Nf5 Bg8 Ng3 Ndf5 Rf7 Ke8 Nh1 d8Q+ Bc8 Qb6 Be6 Kd8 Rh7 Ned5 Rc7 Nde7 Rc2 Nc5 Bc8 Ba2 Rb2 Nb3 Be6 Qa7+
1q2R3/1p1K2Q1/3bP2N/q1NQ2q1/pPnr1r2/1nRr1Qk1/P7/1NQNq3 b - - 1 2 legal: proof: g4 c5 f4 e5 b3 d5 Bb2 f5 Bh3 c4 fxe5 f4 c3 Bf5 gxf5 h5 Bg4 d4 cxd4 hxg4 d5 c3 Kf2 cxb2 Kf1 Qa5 Ke1 Qd8 Kf2 Kd7 e4 a5 h4 g5 d4 g3+ Kf3 g2 Kg4 a4 h5 f3 h6 f2 b4 f1Q h7 Qe8 d6 Qg6 f6 Ke6 d7 Bd6 d8Q Bc5 f7 Qe1 f8Q Ra5 Qff3 Qe8 Nh3 Ne7 Qc1 Nbc6 Nf2 Rf8 h8N Nd5 Nd1 Bd6 Rh3 Nb6 Nf7 Nc4 Nh6 Rd5 Qc7 N6a5 Qg7 Qb8 Rg3 Rf7 Rh3 Ke7 e6 Nb3 e5 g1Q+ Rg3 Qh2 Rh3 Qa7 Rg3 Qa5 Rh3 Ke8 e7 Kd7 e8N Ke6 Nf6 Rf8 Ne4 Rf4+ Kh5 g4 Kg5 g3 Kg6 g2 Rg3 Rf7 Nc5+ Ke7 e6 g1Q Rg2 Qge3 Rc2 Qhf4 Rc3 Qg5+ Kh7 Qef4 Kg8 Re5 d5 Re4 Rd3 Rd4 Rc3 Bc7 Nd2 b1R d6+ Kd8 d7 Ke7 Na6 Kd6 d8Q+ Rd7 Nc5 Rb2 Nb1 Rf2 Na6 Qh2 Kf8 Rf1 Ke8 Bb8 Qh1 Rff4 Nc5 Rd3 Qf3 Qhg3 Qg6 Ke5 Qh7 R7d4 Qdd5+ Kf6 Kd7 Bd6 Qg2 Qh2 Qh8+ Kg6 Qg7+ Kh5 Qgf3+ Kh4 Ne4 Nb2 Rc8 Nc4 Nc5 Qh3 Re8 Qhf5 Na3 Qf8 Rb1 Qg8 Rb2 Qh8 Nb1 Qg8 Rc2 Qf8 Qf1 Kg3 Rc3 Qg8 Re7 Qga8 Re8 Qb8 Qff3+
6Q1/2r4p/pb2bB1B/Prq1QPq1/QB1Q2p1/1kP4b/1n1RBK2/b1R5 b - - 0 1 illegal: No possible last move
nk1B1BQ1/nP1PR2q/2N2n2/1B1b2NP/1p1N1n2/r3PRK1/4b3/2nn4 b - - 0 1 legal: proof: f4 h5 b4 c5 d4 d5 a4 b5 c4 e5 g4 exf4 gxh5 a5 cxd5 c4 Nd2 Bc5 dxc5 Ra7 Nb1 Rb7 Qd4 axb4 Qd1 b3 Bb2 b4 Bc1 Rb5 axb5 Qb6 Kd2 Qc7 Ke1 Qd8 Kf2 Kd7 h4 Kc7 h6 f5 e3 g5 h7 f3 h5 f4 c6 b2 Nc3 b1N Qd2 g4 Ra4 g3+ Ke1 g2 Kf2 Qe7 Qe2 Be6 Qe1 Nf6 Nge2 g1N Nd4 Ne2 Ne4 c3 Ng5 c2 Rh3 Nbc3 Bb2 c1N b6+ Kc8 d6 Bd5 c7 Nc6 Qd1 Na7 Qb3 Kb7 c8N Kb8 d7 Qe4 b7 Nd1+ Ke1 Rf8 h8B Qh7 Ne7 Rg8 Bg7 f2+ Kd2 f3 Bf8 Rh8 Ra6 Nf4 Bb5 f1N+ Ke1 Nd2 Re6 Nc4 Re5 Nb6 Nec6+ Kc7 Re7 f2+ Kf1 Na8 Rf3 Rg8 Na5 Kb8 Qa2 Nfd3 Kg2 f1B+ Kg3 Nf4 Bc3 Be2 Be1 Bc6 Qd5 Rg6 Qg8 Bd5 Bc3 Ne8 Be1 Ra6 Bf2 Nf6 Nac6+ Kc7 Kh2 Ra1 Bh4 Ra3 Kg3 Ra5 Nf7 Ng4 Re8 Ra3 Bhe7 Nf6 Ng5 Bf7 Na5 Bfc4 Bd8+ Kb8 Re7 Bd5 Nac6+
1rk2RbK/B3PbN1/Nb1B1n2/1p5R/2n2p2/1Q3bb1/PN1nPP2/5B2 b - - 0 1 legal: proof: c4 e5 g4 b5 d4 f5 dxe5 g5 h4 Qf6 b4 Kd8 hxg5 f4 gxf6 a6 g5 bxc4 b5 axb5 f7 c3 Nf3 Ra6 Ng1 Rf6 gxf6 Bd6 Rh3 Bb4 Rh1 Bf8 e6 d5 Rh3 c5 Qd2 h5 Na3 d4 Rg3 h4 Nc2 d3 Qd1 c4 Nb4 h3 Be3 h2 Qb3 h1B Na6 c2 Kd2 c1N Kc3 d2 Kd4 d1B Ke5 c3 Nf3 c2 Nd2 Bf3 Nc4 Be7 f8B Nc6+ Kf5 Ne5 f7 Bg5 Nb2 Nf6 Bd6 Bh4 f8N Nc4 Rg8 Bg3 Kg6 Bcb7 Kg7 Bbd5 e7+ Kc8 Ba7 Bf7 Qe3 Nb3 Ne6+ Kb7 Rc8 c1B Nec7 Nbd2 Rf8 Bb3 Ne8 Kc8 Rb1 Nde4 Qc3 Be3 Rd1 Bg8 Rd5 Nd2 Rh5 Bb6 Qb4 Ne3 Qa3 Bbf7 Qb3 Nec4 Rh3 Rh5 Rh4 Rc5 Kh8 Rc7 Rh6 Rb7 Rh5 Rb8 Ng7+
K1b1q3/R3p3/3BkqNN/1Bp3P1/QPq1R1PP/p7/N1prB3/2b3r1 b - - 0 1 legal: proof: c4 g5 e4 d5 d4 dxc4 f4 b5 fxg5 b4 d5 b3 axb3 Nd7 d6 Nb6 b4 Ba6 Kf2 Bb7 Ke1 Bc8 g4 h5 b3 a5 Bb2 a4 Qd3 h4 Ba3 Nf6 Qg3 hxg3 Bc1 Nfd5 exd5 a3 Nh3 Kd7 Ng1 Na4 bxa4 Ke8 Ke2 Kd7 Ke3 f5 Kd4 f4 Kc5 c3 h4 f3 a5 c6 a6 c2 a7 g2 Ne2 f2 Nf4 g1Q Be2 Qc7 Nc3 Bh6 Na2 Bf8 Ng6 Qd8 Bf4 Qg2 Rae1 Rb8 a8B Ke8 d7+ Kf7 d6 Qc7 d8Q f1Q d7 Rg8 Bd6 Bg7 Qe8+ Ke6 Rh3 Qf7 Rd3 Qgf1 Bb7 Qf8 Ba6 Bb2 Bb5 Bc1 Rc3 Qd8 Rc4 Rb7 Rc3 Rc7 Kb6 Q8f6 Rd3 c5 Rd4 Bb7 Ka7 Bc8+ Ka8 Q1f4 Rd2 Qc4 Rd4 Rf8 Re4+ Qe5 Rf1 Rf3 Rf2 Rg3 Rf8 Rb7 Rg8 Rg1 Rh8 Qc7 Rf8 Qc6 d8N+ Kd5 Rh8 Qf6 Nf7 Qd7 Nh6 Rc7 Qd8 Qe8 Qd7 Rc6 Qa7 Rc7 Qa4 Rd7 Be5 Ke6 Rf8 Rd2 Bd6+ Kd5 Rh8 Qef7 Rd8 Qg8 Rd7 Qe8 Rd4+ Ke6 Ra7 Qef7 Rf4 Qe8 Re4+
1n3Rn1/br1Q2Kb/1kB1B3/1qq1P3/1r1b2P1/Pq6/2BPR1r1/nN1N2N1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 c4 a4 cxd5 a3 Nc3 axb2 Rb1 bxc1Q Rb2 Qa1 Nb1 Bd6 Qb3 Bb4 Qd1 Bf8 Rb4 Qc3 Kf2 Kd7 g4 b5 e4 f5 a3 c5 d6 Kc6 e6 h5 e5 c4 e7 f4 e8B+ Qd7 Rh3 h4 Rf3 h3 Ne2 h2 Bh5 h1Q Be8 Qg1+ Ke1 Rh2 Qa4 Rg2 Rb3 Qd3 Nbc3 Ra7 Nd1 Rb7 Nec3 Qd5 Re3 f3 Re4 f2+ Ke2 Kc5 Ke3 b4 Bd3 f1N+ Kf4 Ne3 Bb1 Q7e6 d7 Nc2 d8N Na1 Nf7 Qec6 Re1 Bf5 Bc2 Bh7 Re2 Be7 Bd7 Bd8 Be8 Bb6 Bd7 Ba7 g6 Ne7 Kg5 Kb6 Kh6 Qgc5 Be6 Qf3 g7 Ng8+ Kh5 Qd3 Ng5 Qcf3 Qd7 Qfc6 Bb1 Q6b5 Nh3 Qf3 Ng1 Qfd5 Na2 c3 Bbf5 c2 Rf3 c1B Nac3 b3 Bc2 b2 Rf8 b1R Kg5 Rb3 Nb1 Qdd3 Bd5 Rb2 Bc6 Rb4 Kh5 Bb2 Kg5 Ne7 Kf6 Qb3 g8B Bd4 Be6 Ng8+ Kg7
b1nq2b1/8/k5bB/b4Br1/1PRN1N1q/1P3BQ1/PKn4P/2R1rnRb b - - 0 1 legal: proof: f4 c5 g4 e5 d4 cxd4 c3 exf4 Qa4 b5 Qxa7 h5 gxh5 b4 cxb4 Qf6 Bg2 Qg5 Bf1 Qd8 Kd2 f5 Kc2 g5 e4 d5 h6 d3+ Kb3 d2 e5 d1B+ Ka3 d4 e6 g4 h7 d3 e7 f3 b3 f2 Qa5 Kd7 Qa6 Kc7 e8B f4 Kb2 f3 Nc3 d2 Kb1 g3 Nce2 g2 Qd6+ Kb7 Qg6 Bf5+ Kb2 Nc6 Qf7+ Nge7 Qf6 Nd4 Kc3 Bg6 Nf4 Nc8 Nge2 g1Q Ba3 Qg4 Ng2 Rg8 h8R Bd6 Qg7+ Ka6 Qh6 Bc7 Ngf4 Qgh4 Qg5 Nc2 Bc6 Ba5 Bh3 f1B Ng3 f2 Bf5 Bc4 Rg1 f1N Bc1 Bf3 Kb2 d1B Nge2 Bh1 Nd4 Bdf3 Qg3 Re8 Rh7 Re1 Rc7 Bg8 Bd2 Rb8 Rc1 Rb5 Ba8 Bfg2 Bf3 Rbe5 Rc4 Rb5 Bh5 Ba8 Bf3 Rc5 Nd3 Rd5 Bh6 Rb5 Nf4 Rc5 Be6 Rg5 Bf5
4rn1b/BP1NbK2/1P4R1/1Bb1rP2/3r1n1R/1Q3b1q/1kNnP2q/4R2B b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 g5 h4 gxh4 g4 f5 d4 fxg4 dxe5 Be7 Nf3 Bd6 Ng1 Bf8 Kd2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 Kg6 c4 b4 h3 f4 a4 e6+ Kd6 f5 Ke5 b6 h2 e7 a3 e8B h4 b5 a2 b7 c3 Qd2 c2 Qd1 h3 Bh6 c1N Bg7+ Nf6 Bc6 g3 Qa4 g2 Qd1 Qd6 Qd3 Nd7 Nd2 Nb3 Qg3+ Kd4 Rb1 a1B Qg5 Kc3 Ngf3 g1B Re1 Ra5 Ne4+ Kb2 Bg2 Be7 Nd4 Nf8+ Kf7 Nh5 Qe3 Nf4 Nc5 Nd2 Nd7 Bf2 Rhg1 h1Q Nc2+ Qe5 Bf3 h2 Rg6 Qg2 Qd3 Qh3 Bh1 Be3 Bf6 B3c5 Bh4 Qd6 Bf2 Qe5 Bf3 h1R d6 Rg1 Bh1 Rg4 b6 Rg8 Bb5 Qeh8 Qe3 Qh2 Bg3 Q8h3 Ne5 Rh8 d7 Rg8 d8R Bd7 Qd3 Bc6 Rd4 Bf3 Nd7 Nh7 Rg5 Re8 Rg6 Nf8 Qe3 Nd5 Ra4 Rd4 Bb8 Nf4 Ba7 Bcd6 Ba6 Re5 Bb5 Bc5 Qd3 Rdd5 Re4 Rd4 Qe3 Nd5 Rh4 Nf4 Qc3+ Ka2 Qa5+ Ra4 Kg7 Re3+ Kf7 Bh8 Nd4 Re5 Nc2 Kb2 Qa6 Rae4 Qa4 Rd4 Qb3+
b7/KR1NBr2/2PPb2q/4n1PP/1Bq2n2/2qqR2B/1kn1bR1b/3Q2N1 b - - 0 1 legal: proof: b4 b5 f4 d5 g4 a5 a3 h5 a4 g5 gxh5 g4 e4 dxe4 axb5 c5 Ne2 cxb4 Ng1 Ra6 Ne2 Rg6 Ng1 Rg5 fxg5 Bf5 Ra3 Be6 Ra1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 f5 h4 e5+ Kc4 g3 d4 e3 d5 f4 c3 e4 b6 Ke5 Kb5 a4 h6 a3 c4 f3 h7 g2 h5 b3 c5 f2 b7 a2 Nc3 b2 Qc2 Kd4 Nh3 b1B Bd2 g1Q Qb3 e2 Qd1 e1Q Na4 e3 Qe2 Ne7 Bb4 Qc1 Qf3 e2 Qg4+ Be4 Be1 Ng6 Qf3 Nf4 Rb1 a1Q Rb3 Be6 Bb4 e1N Bg2 Nc6 Ka6 Qac3 b8R Nc2 Rb7 Ne5 Nb6 f1B+ Ka7 Bd6 Rh2 Be2 Nd7 Rf8 h8B Rf7 Bf6 Qgd1 Ra3 Qf8 Ng1 Qh6 Bh3 Qdd3 Rf2 Kc4 Be7 Bc7 Ra6 Kb3 Ra3+ Kb2 Qh1 Qdc4 Qf3 Q1d2 Qd3 Qe3 Qd1 Qed3 Ra1 Ng4 Ra3 Be5 d6 Bh1 Rb8 Ba8 c6 Qc3d4+ Nb6 Qdb3 Bc5 Ng6 Ra5 Bh2 Nd7 N4e5 Rb7 Nf4 Ra3 Qbb4 Raf3 Qdd3 Re3 Qbb3 Bb4 Qcc3 Rb6 Qbc4 Rb7
1k4b1/1bnnR2Q/7r/NPP3N1/2bPn1BP/7b/R5b1/KnbR1NrB b - - 0 1 illegal: No proof kernel
N6B/1K1b2n1/rQ2P2P/N3nq2/1P1P2Br/R3r1N1/2p3rb/1RBrk1q1 b - - 0 1 legal: proof: c4 b5 a3 d5 cxd5 b4 axb4 e5 Ra4 Ba6 Ra1 Bc8 g4 a5 f4 exf4 b3 h5 gxh5 a4 Bh3 axb3 Bg2 Nd7 Bf1 Nb8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 d4 Kh4 h6 g5 d6 c5 Kd5 f5 e4 b2 d7 f3 h7 g4 e5 c4 h3 Kg3 h4 Kf2 e6 c3 h5 f4 Ra3 g3 Rh2+ g2 Bc4 c2 Bd3 Qf6 d8N Nd7 Kc6 Nh6 Ra4 Ra6+ Kc7 Nf5 Bf1 Ne5 Rh4 Ng7 Ne2 g1Q Nbc3 b1R Nb7 Qf5 Ra3 Bd7 Bh3 Rb3 Nd5 Re3 Na5 Bd6+ Kb7 Rg8 Qd3 Ke1 h8B f2 h6 f1R Qb5 f3 Bg4 f2 Rh5 Qg2 Bb2 Kd1 Rb3 Rh1 Ra3 f1R Qc5 Nc4 Rh3 Ne8 Bh5 Re1 Rg3 Rh4 Qb6 Bc7 Rf3 Bh2 Nc7 Ne5 Na8 Qg1 Rf1 Rg2 Bg4 Kd2 Ng3 Rb1 Re1 Ng7 Re2+ Kd1 Rd2+ Ke1 Rdd3 Be8 Rdb3 Rd1 Bc1 Bd7 Rb1
5rqr/3K4/4B1b1/B1R3qQ/kNBnNPq1/4P2q/R1PPpR2/b3n1b1 b - - 0 1 illegal: No proof kernel
2n2B1k/6p1/2qP1N1P/1P2N3/Kb2Pn2/1nN1b2B/1r1R1R2/1Bbr1bnQ b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 f4 e5 a4 exf4 c4 d5 cxd5 b5 axb5 Rh6 Bh3 Rh7 Bf1 Rh8 e4 f5 d4 Kf7 Kd2 c5 Kc2 g3 Kb3 c4+ Ka4 g2 h4 c3 h5 f3 d6 f2 a6 f4 d7 f3 a7 c2 d5 Qc7 h6 Ne7 d8N+ Kg8 Qd3 Nd7 Bf4 c1B Nh3 g1B Qd2 Nb6+ Ka5 Ng6 Ng5 Bh3 Nc3 Nc8+ Ka4 Qc6 Bd6 Nf4 Rh2 Be7 Bd3 f1N Qd1 f2 Nh7 Ng3 Bb1 f1N Nf7 Nge2 Ne5 Bge3 Ra2 Nd2 Qh1 Nb3 Rd2 Ng1 Rhf2 Bf1 Ba3 Bg5 Bf8 Be7 Rd4 Bb4 Rdd2 Rb8 a8B Rb7 Na2 Rf7 Bb7 Rf5 Nc3 Rg5 Nf3 Rg2 Nf6+ Kf7 Nd7 Kg8 Nfe5 Kh7 Ba6 Rg8 Nf6+ Kh8 Bc5 Rd8 Bf8 Nd6 Bc8 Rh2 Bh3 Nc8 Rf3 Re2 Rf2 Rd6 Rd1 Rb2 Rdd2 Rd7 Rd1 Re7 Nd3 Re5 d6 Rd5 Ne5 Rd3 Rdd2 Rd4 Rde2 Rd1 Rd2
4B3/P4nPB/3b4/b5bn/PQq1N1P1/pN1r1kRb/2R1n2K/1NBr2n1 b - - 0 1 legal: proof: b4 a5 e4 g5 d4 b5 h4 f5 hxg5 c5 dxc5 fxe4 a3 Bg7 Qd3 Bf8 bxa5 b4 a4 Ra7 Qe3 Ra8 Qa3 bxa3 f4 Kf7 Kf2 Ke6 Kg3 Kf5 c4 h5 g6 d5 a6 e5 g7 e3 a7 Ke4 f5 h4+ Kh3 d4 c6 d3 g3 e2 c5 e1B c7 d2 c6 d1N Kg2 Ba5 f6 Nh6 f7 Nf2 Nf3 h3+ Kg1 h2+ Kg2 Qd3 Be3 Nh3 Ra2 Nd7 Re2 Nf6 Rg1 h1N Ra2 Rg8 Rf2 Nh5 Kh2 Bg4 Nd4 Rd8 Rgg2 Ng1 c8N Bh3 g4 N1g3 c7 Qa6 Nf5 Rd1 Rc2 Kf3 Bb5 e4 Bc1 e3 Ncd6 e2 c8B e1B Ne4 N3e2 Bbd7 Bc5 f8Q Bh4 Qe7 Rd8 Be8 Bg5 Qd6 Bcb6 Qb4 Qc4 Be6 R8d3 Bg8 Bbe3 Bh7 Nf7 Nd4+ Kf4 Nb3 Kf3 Bb2 Bc5 Bc1 Bd6+ Rg3+
5n1N/r1PB4/pnR3Nb/1Qn3bR/PNb2b1P/2B3R1/3Pb1q1/1K3bk1 b - - 0 1 legal: proof: f4 c5 c4 d5 g4 b5 b4 e5 bxc5 exf4 cxd5 h5 c6 hxg4 d6 a6 Ba3 Ra7 Bc1 Rc7 dxc7 Qf6 Ba3 Qe7 Bc1 Qd8 a4 Ke7 h4 Kd6 e4 Ke5 Bd3 g5 Qf3 f5 Kd1 g3 Kc2 g2 Bf1 b4 Rh2 b3+ Kb2 g4 Na3 g3 Nb1 Nd7 Qe3 f3 Qd3 Kf4 e5 f2 e6 Ngf6 e7 Nd5 e8R Rh7 Re1 Bh6 Re3 Qg8 Na3 Nf8 Kb1 b2 Qe2 Nb6 Rh1 Be6 c8N Ra7 c7 Bc4 Nf3 g1B Qe1 g2 Re2 Kg3 Nd6 f4 Ne5 f3 Ng6 Bh2 Nf7 g1B Bh3 Qg7 Qd1 f1B Nc2 f2 Re5 Bfe2 Bd7 Kg2 Nfh8 f1B Rh5 B2f4 Nb4 Bge3 Rh3 Kg1 Qb3 Bfg5 Qd3 Bef4 Qf5 Qg8 Qb5 Qd5 Rg3+ Qg2 Kc2 b1N Bb2 Nc3 Rc1 Ne4 Bc3 Nc5 Kb1 Bg4 Re1 Bd1 Re6 Bde2 Rc6
KR3kq1/n2bBp1r/RNn1P3/3qR1B1/B1n5/1PPnr2r/3PN3/6rQ b - - 0 1 legal: proof: a4 b5 f4 bxa4 Nh3 e5 Ra2 c5 Nc3 e4 Ng1 c4 Nb1 Bd6 Ra1 Be5 fxe5 c3 h4 d5 b3 g5 hxg5 d4 e3 Nd7 exd4 Rb8 Na3 Ra8 Nc4 Nb8 Nb2 cxb2 Kf2 b1R Ke3 a5 g4 h5 d5 a3 Kd4 a4 Kc5 h4 c3 a2 e6 h3 d6 a3 g6 e3 d7+ Kf8 g5 h2 Bb5 e2 Ba4 e1N Ne2 Rh3 Kd6 Qe8 Kc7 Nd3 d8B Bd7 Kb7 Ne7 Re1 Nbc6 Bb2 h1Q g7+ Kg8 Bc1 Nc8 Bb2 N8a7 Qc1 Kh7 g8N Kg7 g6 Kf8 Ne7 Qd5 Nc8 Rh7 Nb6 Rc8 Rg1 Ra8 Qf1 Re1 Rg5 Rc8 Qh1 Rg1 Rd1 a1R Re5 a2 Rf1 Re1 g7+ Kg8 Bc1 a1N Ba3 Nc2 Bae7 Na3 Bg5 Nc4 Rff5 Qf3 Ra5 Qd5 Ra6 Rh3 Nd4 Ree3 Ne2 Kh7 g8R Qf8 Rh8+ Kg7 Re5 Qg8 Qe4 Kf8 Qh1 Rc7+ Ka8 Rb7 Nc8 Rb5 Nb6 Ra5 Bb5 Raa1 Ba4 Raf1 Nc8 Rf4 Nb6 Rfh4 Kb7 Kg7 Bde7 Qh7 Rb8 Qg8 Bd8 Rh7 Ka8 Kf8 Bde7+
k1r5/3Q1PNR/1nn2r2/PB2R1nr/1N1R3r/1rB2rP1/b3P1pr/2K2B2 b - - 0 1 legal: proof: d4 b5 d5 a5 b3 b4 d6 a4 bxa4 exd6 c4 d5 Bb2 d4 Ba3 Qg5 Bc1 Qb5 cxb5 Ba6 Nc3 Bb7 Nb1 Bc8 g4 f5 Bg2 fxg4 Bh3 g3 Bf1 g2 Nf3 g1N Bh6 g5 Kd2 g4 Bg5 g3 Ke1 g2 Bh6 Bd6 Bc1 Bg3 hxg3 Ra6 Bd2 Ra5 Bc1 Ra8 Kd2 Kd8 a5 c5 a4 Kc7 b6+ Kb7 Rh6 d5 Nc3 b3 Nb5 d3 Re6 h5 Ng5 c4 f4 b2 f5 b1R f6 h4 f7 d4 Ne4 c3+ Ke1 h3 Ra2 d2+ Kf2 h2 Rb2 h1R Rh6 d3 Ke3 c2 Nf2 Rh2 Rb4 Rb3 Bb2 c1R Rd4 Rcc3 Nc7 Nh3 Rh7 Ng5 Ne6 Nc6 Ng7 Be6 a6+ Kb8 b7 Nge7 a5 Nc8 Ba1 Nb6 Bb2 Ka7 b8R Rh5 Rbd8 Rc8 Re8 Ka8 a7 Bd5 Re5 Rc4 Qa1 d1R Qa4 d2+ Nd3 Ra1 Qb5 d1R Bc3 Raa3 Nb4 Rc1 Kd2 Be6 Rd7 Rch4 Rd4 Rd1+ Kc2 Rd3 Kc1 Rf3 Qd5 Rf6 Qd7 Rh2 Ba1 Rbf3 Bc3 Ba2 Qf5 Kb7 a8B+ Kb8 Qd7 Rb3 Bb7 R5h4 Ba6 Ka8 Bb5 Rh5 Nf5 R2h4 Rg7 R8h6 Rh7 Rh2 Ng7 R5h4 Nd3 R6h5 Nb4
8/1R2BBqP/2P1Kn1b/Pqpn4/BN4k1/R2n1N2/bn1q1PR1/5bQq b - - 0 1 illegal: No possible last move, all moves rejected
4N1B1/2bKp1nP/R1rP1N1q/1Pb1P3/q2Brb2/5R2/2Rp2Q1/2n2nkB b - - 0 1 illegal: No possible last move
2qkrrn1/2NP2NP/P3N1r1/1B4p1/1p1Bb3/2qbR1b1/K2R3P/2B1nQ2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d6 d4 d5 cxd5 cxd4 Kd2 e5 Kc2 g5 Kb3 b5 f4 d3 a4 e4 d6 d2 f6 e3 h6 e2 d7+ Kf7 f5 e1Q h7 Qe2 a5 Ba6 Na3 Qe5 Nf3 Nc6 Nd4 Bd6 Ka2 Qc8 Ne6 Qc3 Ng7 Ne5 Qe1 Bb7 a6 d1R Bd3 Bg2 Qf1 Be4 Be2 Kf8 f7 Ke7 f8N Kd8 f6 Nf3 f7 Ne1 Bd3 Bg3 Nfe6+ Ke7 Be2 Rd6 Rg1 Bd3 Rg2 Be4 Bd3 Rb8 Rd2 b3+ Kb1 b4 Nb5 b2 Nbc7 Rc6 Ka2 Rcb6 Bb5 Bd3 Nc5 Kd8 f8B Rg6 Rb1 Nh6 Bd6 Rf8 Be5 Ng8 Bd4 Rbb6 Re2 Rbe6 Re3 Re7 Bd2 Ree8 Rd1 Qc2 Bc1 b1B+ Ka1 Qc4 Rd2 Be4 Kb2 Bbd3 Ka1 Qc3+ Ka2 Rf5 Ree2 Rf4 Re3 Rff8 N5e6+
1B4R1/N4bP1/r1rPPqR1/B1Q1bpb1/2nbRB1n/P1k3N1/K1p5/1n6 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 fxg4 bxa5 d5 c4 e6 cxd5 Nh6 f5 Ng8 h4 g5 Bh3 g3 Bg4 Qe7 f6 Qg7 Bf5 exf5 Na3 g4 Nb1 Qg5 hxg5 Ra6 Na3 Ra7 Nb1 Ra8 d4 Kf7 Kd2 h5 Kc2 b5 Kb2 c5 e4 c4 a6 b4 a3 g2 e5 c3+ Ka2 h4 a7 g3 d6 Ke6 f7 Kd5 d7 Kc4 d8B c2 d5 b3+ Kb2 h3 g6 h2 d6 Nc6 g7 Be7 f8B Na5 Nf3 g1B Bf4 g2 Nc3 Bg5 Bfe7 Be6 Bc7 Bd4 Bed8 g1B Bb8 Bf7 e6 Be5 Nd4 Ne7 Nc6 Bgd4 Re1 h1Q Re4 Qh6 Qg1 Ng6 Qe3 Rf8 Rg1 Nh4 Ka1 b2+ Ka2 b1N Ne2 Rh8 Ng3 Qf6 Qf2 Kd3 Bb6 Nc4 Ba5 Rc8 Rg2 Bb2 Qc5 Bbd4 Ne2 Bh6 Rg6 Bg5 Ng3 Rc7 Ne7 Rc6 Nc8 Ra6 Bbc7 Rb8 a8R Rbb6 Na7 Rc6 Rc8 Rcb6 Bb8 Rc6 Bac7 Kc3 Rg8 Qe7 Bb6 Qf6 Ba5+
bbkn1NR1/3pB2P/3b1K2/1RP1BN1P/8/qQPq4/1R1p3n/2br2Nr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 d4 exf4 a4 Qg5 axb5 Qc5 Bg2 c6 Bd5 cxd5 dxc5 d4 Kf1 d3 Kf2 Nf6 Ke1 Ng8 Kd2 Kd8 Kc3 a5 Kd4 f5 Ke5 g5 e4 g4 b4 g3 h4 f3 b6 d2 b5 f4 b7 a4 h6 g2 b6 a3 h7 f2 Ra2 f1Q Nc3 f3 Nb5 f2 Nc7 Nh6 Kf6 Nc6 b8B Qa6 e5 Bd6 e6 Bb7 e7+ Kc8 e8N Nd8 Rb2 a2 Ng7 a1B Nce6 f1Q+ Nf5 Qa3 Nf8 Qfd3 Rh3 Ra4 Rg3 Ba8 Rg8 Rf4 Bc7 Rf1 Qf3 Rd1 Qe3 Ndf7 Bd8 Bb8 Be7 Nd8 Qe6 Bd6 Qb3 Ng4+ Kg7 Nh2 b7+ Kb8 Nf3 g1B Kf6 Bf2 Ng1 Bfg3 Rg4 Rg8 h5 Kc7 b8R Bgf4 Rb6 Kc8 Rg2 Bb8 Rg3 Bfd6 Rb5 Rg4 Rg2 Re4 Rg8 Re5 Ra2 Ree1+ Bb2 Rf1 Be5 Bb2 c3 Bc1 Rb2 Rfe1 Nf3 Rh1 Ng1
1q1n3K/k1nqNNBR/Q3B3/3rp3/4rPN1/2R2q2/1rPPp2P/1nbR4 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 b5 a3 c5 Qf3 h5 gxh5 f5 Qe3 f4 bxc5 fxe3 a4 b4 Kd1 Bd7 Ke1 Bb5 axb5 Qc8 Ra5 Qc7 Ra1 Qd8 Ke2 Kd7 f4 Kc8 h6 Kb7 h7 a5 b6 g5 Bb2 e5 Ra3 b3 Ra1 g4 Bc3 b2 Bd4 g3 Ra3 g2 Rc3 a4 Nh3 g1Q Nf2 a3 Bh3 a2 Be6 a1Q Ng4 Qg3 Rd1 Na6 c6+ Kb8 b7 Ba3 Bc5 Nc7 Be7 Nh6 Bf8 Ka7 b8R Qd7 Bg7 Rd8 h8N Nf7 Rbb3 Rdb8 Rb6 Nd8 Nf7 Qa2 Rb4 Qb3 Ra4+ Na6 c7 Rb7 c8Q Qf3+ Ke1 e2 Qc4 Qh1+ Kf2 e1R Kg3 e3 Kh4 Qf3 Kh5 Re2 Rb4 Nc7 Kg6 Rb5 Kh7 Rd5 Kh8 Rb8 Qc6 Re1 Rd4 Rb4 Rdd3 e2 Re3 Re4 Qc4 Qb8 Qa2 Qf1 Rh3 Qf3 Rh7 Rh1 Rc6 Rf1 Nc3 b1N Qc4 Bc1 Qa4+ Ra5 Nd5 Rh1 Qc4 Rc5 Ne7 Rd5 Qb5 Rg1 Rc3 Rg3 Rc4 Rh3 Rc3 Rh6 Bf5 Rb6 Be6 Rb7 Qd3 Rb2 Qa6+
1B1K2Bn/4pr2/1np2BN1/8/1n2P3/5PP1/1q1PRqRq/bQnN1qRk b - - 0 1 illegal: No possible last move
b6N/3n1p1P/q1PNkq2/pq2P3/r4n1Q/R2pbR1P/Nr4BB/K6R b - - 0 1 legal: proof: b4 a5 g4 b5 f4 c5 d4 cxd4 a4 h5 gxh5 e5 axb5 exf4 b6 Qc7 b5 Qc6 Nc3 Qb7 Nb1 Qa6 bxa6 Kd8 Bh3 Ke7 Bf1 Ke8 Kd2 Ke7 e4 d5 c4 g5 Kc2 d3+ Kb2 g4 h6 d2 a7 f3 h7 f2 b7 g3 c5 g2 c6 d4 Qe1 d1Q Ra2 Qb3+ Ka1 Nf6 Ne2 g1Q Bg2 f1Q Qh4 Bh6 Bf4 Ke6 Ra3 Nbd7 b8R Qb5 e5 d3 h3 Rg8 Bh2 Nd5 Rb7 Qa6 Rb2 Rb8 a8N Qc5 Nb6 Qf6 Nc4 Qcb5 Nd6 Bb7 Nbc3 Ba8 Na2 Be3 Rb4 Rg7 Rf4 Rg4 Rf3 Ra4 Nf4+ Ke7 Ng6+ Ke6 Nh8 Nf4 Rb1 Rg8 Bh1 Rg2 Rc1 Rf2 Bg2 Rb2 Rh1
1NB5/2p2q1P/BP5K/2n4N/q2p1RB1/1r1rP2p/1PbR1r1Q/2nkqN2 b - - 0 1 illegal: No proof kernel
q3nN1n/1P2B1Nr/2P2qPQ/6BK/rk4p1/6p1/qBp2P2/1bRRr2N b - - 0 1 illegal: No proof kernel
1rBQR3/pq1pPqR1/5k1N/2KN1pq1/b2P2b1/PN4bP/1n5R/1B5b b - - 0 1 legal: proof: f4 e5 b4 exf4 Bb2 c5 bxc5 b5 Na3 b4 Rc1 b3 Ba1 b2 Nb1 Ba6 Nf3 Bb7 Ng1 Bc8 h4 bxa1Q Na3 g5 Rb1 g4 Rb2 Nh6 Nb1 Rg8 Qc1 Rg5 hxg5 Ng8 Qd1 Nc6 Rh4 Ke7 Rb7 Qb6 Nh3 Nf6 Nf2 Bg7 Rc7 Bb7 Rh2 Rh8 Rh1 Ke8 Rc8+ Qd8 Nh3 Bf8 Rb8 Bc8 Ng1 Ng8 Rb2 Nb8 Nf3 h5 Rb5 h4 Rb2 h3 Rb7 h2 Nh4 Nc6 Nf3 Nd4 Rb8 Nf5 Rb7 Ng3 Ng1 Ne4 Rb5 Nf2 Rb2 Nh3 gxh3 Bh6 Rb8 Bg7 Rb2 Bf8 Kf2 Ke7 c4 f5 e4 f3 Ke3 g3 Kd4 g2 c6 f2 g6 Qc7 g7 Qf4 c7 Ba6 c8R Ke6 a3 Qb8 e5 Rh6 c5 Qa8 c6 Rh4+ Qg4 Nh6 g8N Qa2 c7 Bd6 Bd3 f1B Nc3 Nf7 Nge2 Qb7 Bb1 Bb5 Rg1 h1B Nc1 Ba4 Nh6 Be2 Nb3 Bf3 Qe4 Bg4 Nd5 Rh5 d3 Rg5 Rf8 Rg8 c8B Bb8 Qe2 Nd6 Kc5 Nc4 d4 Rh8 Rd2 Nb2 Qe3 Bc7 Qg5 Bb8 Qd8 Rg8 Rc1 g1Q Rh2 Qe3 Re1 Qg5 Rg1 Rh8 Ng8 Bc7 Re8+ Kf7 e6+ Kg6 e7 Bg3 Nb4 Kf7 Nh6+ Kf6 Nd2 Qag8 Nb3 Qf7 Nd5+ Kg6 Rf8 Bb8 Rg3 Bd1 Rg4 Bg3 Qb6+ Kg7 Rd8 Qgg6 Rg5 Bg4 Qa5 Qa8 Bb7 Rf8 Nb4 Kf6 Nd5+ Ke6 Rb8 Qgf6 Rg7 Qg5 Rc8 Rg8 Rc7 Rb8 Rc8 Bd1 Re8 Bg4 Bc8 Qb7 Ne3 Kf6 Qb6+ Bhc6 Qd8 Bh1 Nd5+
4N3/1RQr4/5p1N/R1r2p1K/pB1bBp2/p2PqP1N/1PrP4/q3rk1R b - - 0 1 illegal: Other
2q1nK1B/N3P1nP/3q2r1/b4b1n/B1bn1PP1/QnR1R3/7n/2r1NkBR b - - 0 1 illegal: No proof kernel
8/1k1N1B2/2N2bBK/1bQR1P1P/q2B1P1P/b1r1rr1R/Nrq2b2/nn2r3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 e5 Kf3 g5 Kg4 d5 c4 Kd7 f4 Kc7 a4 b5 h4 b3 c5 d3 a5 e4 c6 b4 a6 e3 a7 d2 Ra4 d4 Bg2 e2 Na3 e1B Qc2 d1R Bf1 b2 Ra5 b1R Qd2 d3 Qg2 b3 Qc2 d2 Ra4 b2 Qb3 Ne7 Ne2 Qd4 Qg3 Ba6 Rg1 Bf2 Nc4 Bb5 Qc3 Nd7 Nb6 Rc8 a8B Re1 Qc2 d1Q Bg2 Nd5 Qc4 Nc3 Ra3 Nc5 Be4 Nb3 Qc5 Qa4 Bd5 Qc2 Nd7 Na1 Bf7 Rh7 Be8 Re7 Bg6 Re3 Bb7 Rf3 Be3 Re8 Rh1 Rbc1 Rh3 b1R Bd4 Ree3 Ba8 Kc8 c7 Rb2 Bd5 Nb1 Bdf7 Kb7 c8N Be7 Na7 Bf6 Be8 Qcc4 Nc6 Rcc3 Nc1 Qc2 Ra5 Q4a4 Rg3 Ba6 Na2 Bb5 Kh3 g4+ Kg2 Qd3 Rh3 g3 Bef7 Qd2 Rh2 Qd3 Kh3 g2+ Kg4 g1B Rh1 Qdc2 Rh3 Bh8 Kg5 Bf6+ Kh6 R3e2 Qd6 Be3 Ndb8 Bd3 Be5 Bc5 Qd5 Ree3 Bd4 Ba3 Nd7 Bf2 Qd6 Bc4 Rd5 Bb5 Qc5
8/BB2R2N/Nb1b1BnP/1Q1P2b1/Kb1r2Pn/P1kn3r/5q1R/R3qn1b b - - 0 1 illegal: No proof kernel
K4Nkq/3B1nr1/3r1nP1/1q1QB1BP/2b4P/2qPb2N/3nR2R/1r2r1Rn b - - 0 1 illegal: No proof kernel
3N1n2/r2P3r/5r2/n2Kn1b1/Pq4BP/1N1nRR2/krPq2Qq/N2RBb2 b - - 0 1 illegal: No proof kernel
b1b1R3/P2Rn2K/4n3/R3rB1n/nBPq1b1q/1NPrP1N1/2Qr3k/3N1r2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 b4 axb4 f5 c4 d3 e6 dxc4 exf5 Bd2 f4 Be3 Ke7 Bc1 Ke8 Kf2 Ke7 Kf3 Ke6 Kg4 Ke5 h4 g5 a4 f5+ Kf3 b5 h6 d5 h7 b3 a5 b2 h5 b4 a6 d4 a7 d3 h6 g4+ Kg2 b3 Qe1 f3+ Kg3 f2 Bg5 d2 Kh4 d1R Kh5 g3 Kg6 f4 Bh4 g2 Na3 b1N Qd2 b2 Qe1 f3 Qb4 Kf4 Rh3 Nc3 Qa4 b1B Nb5 Nd7 Nd4 Rd3 Be7 Nc5 Nb3 Ne6 Bb4 Qh4 Rh2 Kg3 e3 Bd6 Nh3 g1Q Rh1 Rd2 Bd3 f1R Nf2 Bf4 Nd1 f2 Bf5 Qg2 Qa2 Na4 c3 Qd5 Qc2 Qd4 Rg1+ Kh2 Rg4 Nb6 Ra5 Na4 Rg5 Rd3 Rd5 Rb8 Rd7 Rb5 Rh5 Re5 Rg5 Nf6 Rh5 Rd8 h8R Rd2 h7 Nd5 Re8 Rd3 h8N Ne7+ Kh7 Rd2 Qc1 Be4 Qc2 Ba8 Nf7 Rh1 Qd3 f1N Bg4 Ra5 Rd6 Qb6 Ng5 Ng3 Qc2 Rf1 Ne4 Rg5 Rd5 Rd7 Ra5 Rd3 Rd5 Qd4 Rd7 Rf5 Bh3 Qhf6 Rg5 Nh5 Ng3 Ra5 Rgd5 Qh4 Bf5 Rc5 R5d6 Rd5 Ra6 Re5 Ra5
1Br5/n2PP1rQ/r1r1PPr1/1Bk1n2K/Rb2NB2/1n2R1r1/3q1N2/1b4Nn b - - 0 1 illegal: No proof kernel
1N1BR1B1/K1R2qr1/3kN3/PP3N2/r2p1b2/n2PnPbq/3n1b2/r1q1B1Q1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 h4 gxh4 b4 b5 Ba3 Ba6 Bb2 axb4 Bc1 b3 Nc3 b4 Nb1 Bb5 cxb5 Ra5 Qf3 Ra4 Qd1 Ra8 Ke2 c5 Kd3 d5 a4 Kd7 g4 h5 f3 e5 g5 h3 g6 h2 f6 b2 f7 c4+ Ke3 b3 g7 c3 d3 h4 Bh3+ Kd6 Qe1 c2 Ra2 e4 Kd4 e3 Be6 e2 Bf5 h3 Qd1 e1B Nc3 b1Q Qd2 b2 Bh7 Nf6 g8N Qc7 Ne7 Ng4 Qe3 Rg8 Nce2 Rg7 Nf4 Bf2 Bd2 c1B Bg8 Nd7 Ne6 Ndf6 Nc6 Ne4 Be1 Nd2 Nb8 Qa1 Ne2 b1N+ Rb2 Na3 Ng3 Be7 Rg1 h1Q f8B h2 Rf1 Qa2 Rc2 Qg2 Rc4 h1R Rc3 Qc8 Rc7 Qh3 Rg1 Rf7 Bg7 Bh4 Bf6 Rg7 Bd8 Ra5 Kc3 d4+ Kb4 Ra7 Qg5 Ne3 Nf5+ Ke5 Kc5 Bhg3 Kb6 Qd5 Nh6+ Kd6 Qg4 Qf5 Rg2 Qf7 Qg6 Bg1 Re2 B1f2 Nf5+ Kd5 Ne7+ Kd6 Rc4 Nd1 Rc5 Ndb1 Ba5 Be5 Nc7+ Qce6 Qg2 Qc4 Bd2 Rf1 Qg1 Beg3 Bc3 Bcf4 Ree5 Ne3 a5 Rc1 Be1 Nd2 Re4 Ra1 Ree5 Ra6+ Kb7 Rc6 Ka7 Qc1 Rc2 Qh6 Re4 Rc4 Nf5+ Kc5 Re7 Qh3 Ne6+ Kd5 Rc3 Ra4 Rcc7 Ke5 Re8 Kd5 Nh4 Kd6 Nf5+
4K3/2RNn1r1/1PrPrN2/1b1bPRq1/1kN3Pp/2bBn2n/r4r2/Q3B1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kb4 e4 a5 g4 c5 b3 f5 d6 h3 d7 f3 Ke6 h4 Kf7 h2 b6 c4 b7 a4 d5 c3 d6 f2 Bg2 f1R Bf4 a3 Qd3 a2 Qd5 c2 Qd1 c1R Qd5 Rc6 Bf3 Nf6 Qe5 Ra7 Bg3 f4 Nh3 Nh5 Rg1 h1B Nf2 Rh6 Nd2 Re6 Be2 f3 Nc4 Bg7 Bd3 Nf4 Rc1 Nh3 Qa1 Qg5 d8R Bc3 e5 Bd7 Ne4 f2 Nf6 Bf3 Rf8 Bd5 Qb2 a1R Qb1 Kb5 b4 R1a2 Qa1 Ka4 b5 Kb4 b6 Rc5 Bb1 Nc6 b8N Ne7 Bf5 Bb5 Bd3 Rc6 Rc2 Rb1 Rcc1 f1N Nbd7 Ne3 Ke8 Rbb2 Be1 Rh2 Nh5 Rhf2 Rf5 Rac7 Nhf6 Rc8+ Kf7 Rg8 Rc2 Rg6 Ke8 Rg7 Rg2 Rc7 Nd2 Bd4 Rg1 Bb2 Rc5 Bc3 Rc6 Rb7 Rc8 Rc7 Nc4 Rc6 Rc7
2KB1R2/b1b4N/4Pq2/7q/2Prbr2/2p1PB2/N1n2RPB/nnnkN1Qn b - - 0 1 illegal: No proof kernel
1rbB1kn1/2N2nRr/4p1P1/3nb1Rb/6Bq/KPN2P2/P1R1qb2/2BQb3 b - - 0 1 illegal: No proof kernel
B3K3/1nP1R3/3B1N1q/R1b1n2k/1Q1qrqqP/P1PN1q2/2p1b2r/1n3B1N b - - 0 1 illegal: No proof kernel
nRR1B3/K1P1bPk1/NP1q4/1q1NP1B1/3p1nQq/1rr1q3/rq3B2/3N1b2 b - - 0 1 illegal: No proof kernel
2kb2n1/3qnN2/6NP/pR1R4/P4PnB/1KRb1n1Q/1P4Nn/B2nrrn1 b - - 0 1 illegal: Other
n3b3/1KR1n1B1/1R2b3/1P1P1nrB/Q3Prp1/Pq1q1R2/2N1N3/b2r1kNb b - - 0 1 illegal: No proof kernel
2b4r/1B6/2K1Pr2/pNb2NQk/4nqnP/q1B1n1rP/Pr5R/2RB2bR b - - 0 1 legal: proof: f4 c5 c4 h5 b4 e5 g3 h4 gxh4 exf4 bxc5 d5 Ba3 dxc4 Bb2 Be6 Bc1 Bc8 Kf2 a5 Kf3 b5 Ke4 g5 d4 f5+ Ke5 Kf7 e4 Kg6 h3 g4 d5 f3 c6 c3 d6 f2 Kd5 g3 c7 g2 e5 c2 d7 b4 e6 b3 Bb2 c1Q Nd2 f4 Qf3 Na6 Qe2 f3 Nb1 Nf6+ Kd4 Bc5+ Ke5 Qf8 d8R Kh5 Rd2 Ng4+ Kd5 Qf4 Bc3 b2 Na3 b1R Nb5 Qa3 Kc6 Rb2 Qe3 Rg8 Bc4 f1N Be2 f2 Nf3 g1B Rc1 Rg5 Qe5 Nfe3 Bd1 f1R Nfd4 Rf3 Qf6 Rf5 Qd8 Rf6 Nf5 Rg3 Qd5 Be7 Rdh2 Nc5 Qd8 Ne4 Qd5 Bc5 Qe5 Ba6 c8B Rb8 Bb7 Rh8 Ba8 Bc8 Bb7 Rff8 Qg7 Rf6 Qg5+
1nN2Bq1/1N6/3PR2Q/1R3rp1/1rP3b1/qPk1K3/qbR2rPb/q3nBB1 b - - 0 1 illegal: No proof kernel
2K2B1r/rB2qn2/2bp1kn1/Pb5N/2RbR3/Q1b2P2/2P2qP1/q1NR1nB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 cxd4 Ke2 Kf7 Kf3 h5 Kf4 b5 Ke5 b3 a4 d3 a5 b2 f3 d6+ Kd5 e5 f6 e4 Bd2 b4 Be3 h4 Bb6 d2 Be3 h3 Ra2 h2 Ba7 e3 Qe1 d1B Bb6 b3 Ba7 e2 Qh4 e1B Bd4 Nd7 Kc6 Ra7 Nd2 b1Q Nh3 b2 Ba6 Be2 Nb3 Bg7 Nf4 Qa1 Nc1 b1N Ra4 Bc3 Nh5 Nh6 Bb7 Qe7 Kc7 Nd2 Rd1 Bb5 Bg1 Nf1 Qb4 Ne5+ Kb8 Kg6 f7 Bcd7+ f8B Bdc6 Qa3 Nhf7 Kc8 Kf5 g6 Bf6 g7 Ke6 g8R Kf5 Rgg4 Ng6 Rge4 Bfd4 Ng7+ Kf6 Qb4 h1Q Bh2 Qg1 Qa3 Rh3 Rc4 Qf2 Bg1 Rh8 Nh5+
3b2q1/5knN/bPNKn1qQ/2r4R/2qB1Rnr/4B1pP/b4PP1/2N1bR2 b - - 0 1 illegal: No proof kernel
NrN1r3/BnQ3b1/BPKbNBn1/3P1Rp1/4P3/b2b2q1/knRP2r1/3q4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 b4 Kd6 e4 a5 h4 g5 b6 c5 b5 f5 h5 a4 b7 c4 h6 Kc5 h7 Kb4 b6 a3 Rh5 a2 Nc3 f3 Ke3 f2 Kd4 g3 Qe2 Kb3 Rh4 g2 Nb5 f4 Qd3+ c3 Rh5 f3 Na3 Bd6 Qe3 Nc6+ Kd3 c2 b8B Qc7 Bb2 c1B Nb5 Ba6 Rh2 Nge7 Qf4 Nd8 Kd4 Re8 h8N Nb7 Ne2 g1R Ba7 Ng6 Nf7 Rab8 Qe5 Rg3 Nf4 Rg2 Be2 f1Q Ne6 f2 Rh4 Bb4 Rf4 Bd6 Rf5 Qd1 Bc3 Bb2 Rc1 a1B Rc2 f1N Qh2 Ne3 Qh7 Qd7 Nbc7 Bba3 Na8 Bd3 Bb2 Ka2 Bf1 Be7 Nd6 Qc7 Nc8 Qg3 Qf7 Bed6 Qc7 Nc4 Bc3+ Nb2 Be2 Bb5 Bd3 Bc6 Ba6 Bb5 Bb4 Bf8 Be7 Bd3 Bf6 Bfe7 Nf4 Nh4 Ke5 Ng6+ Ke6 Beb4+ Kd7 Bd6 Ne6 Qb1 Rc3 Nc4 Kc6 Qd1 Be7 B1b2 Rc1 Bg7 Rc2+ Nb2 Bf6
4B2n/1bb1N2R/Pk1R1B2/qqr3p1/7q/PP3B2/1P1rnNKb/Q2qrN2 b - - 0 1 illegal: Other
K2Q1B1R/2qnr1P1/4bqNr/1nbr1P2/B4NBP/3R3p/2bPqrk1/7N b - - 0 1 illegal: No proof kernel
4B1q1/Q2P1Rbb/1NB1r1Nb/2P3q1/3kp1PP/2b2R1r/n3K1n1/1q2N1Bn b - - 0 1 illegal: No proof kernel
q3q3/3P1pBN/4kQ1K/1qn3RN/R5rn/1r1rb1P1/rP1N1PBb/1R5n b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 h4 gxh4 Bf4 Be6 Bd2 cxd4 Bh6 d3 Be3 d4 Bc1 Bd5 exd5 Qc8 Nf3 Qc7 Ng1 Qd8 Kd2 Kd7 c4 a5 d6 h5 b6 e5 c5 h3 c6+ Ke6 c7 a4 c8N h2 b7 h4 d7 e4 Ne7 h3 Ra2 e3+ Ke1 a3 Nf3 e2 Kd2 Na6 b8R Qe8 Nh4 Nc5 Rb7 Ra4 Nc6 Nh6 Nc3 Bd6 Ne5 Nf5 Rg1 h1N Ra1 h2 Rb5 a2 Nhg6 Rh3 Nd5 Nh4 Nf3 Rg3 Rb1 a1R Nf6 R1a2 Ra5 R4a3 Ra7 Rb3 Nh5 Rg4 Ra4 Bc7 Qc2 Bb8 Qc3 e1B+ Kd1 d2 Ke2 d1R Nd2 d3+ Ke3 Be5 Nf8+ Kd6 Nh7 Ke6 Nf3 Bd6 Qd4 Ba5 Bd2 Bb6 Bc3 d2 Qh8 Rc1 Qd4 d1Q Nd2 Qc2 Qf4 Qf5 Qf3 Rd1 Qf4 Nd3+ Bd4 Qg5 Ke4 Qb5 Bg7 Ng6 Kf3 Be3 Qh6 Nc5 Qg5 Rgb4 Qd8 Bdf4 Kg4 Nh4 Qg5 Bc7+ Qf4 Rc4 Kg5 Rd4 Kh6 Re4 Qg5 Rg4 Nf3 Rdd3 Nd2 Ng3 Qf4 h1Q Qg5 Qh3 Qf4 Nh1 Qg5 Bh2 Qf4 Rg5 Qf6+ Kd5 Re4 Qa8 Ra4 Qe6 Rc1 Qee8 g3 Ne6 Bg2+ Kd6 Rc5 Rg4+ Qf4+ Ke7 Rg5 Nc5 Rb1 Ke6 Qf6+
b1R1B3/k2PP1B1/qRpb2qN/QbRqP1rn/5rn1/K7/1Pr2N2/5bN1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 dxc4 g4 Kd7 e4 a5 d4 h5 Kd2 f5 Kc3 f4 d5 f3 d6 h3 g5 h4 g6 a4 Kb4 c3 b6 Kc6 g7 Kb7 e6 h2 e7 h3 Nd2 f2 Qh5 a3 Be2 f1B Ra2 c2 Qe5 Ra4+ Kb3 Nh6 g8N Qe8 Bc4 Nd7 Ngf3 Nf6 Qc5 Nhg4 Ne5 Bd7 Nef3 Bb5 Ng1 Nh5 Nh6 Rg8 Bf7 Rg5 Qf5 Ka8 b7+ Ka7 Qe5 Qc6 Be8 Qb6 Ra1 a2 Qd5 Rc4 Ka3 Rd4 Rb1 a1Q+ Qa2 Bg7 b8R Be5 d7 Qg6 Rb6 Bg3 Rc6 Bd6+ Rc5 Rc4 e5 Rb4 Nb3 Rf4 Be3 c1R Nd2 Rcc4 Rc1 Rc2 Ne4 Ng7 Ne2 Nh5 Rg1 h1B Nf2 h2 Rg3 Rf8 Ng1 Ba8 Bd2 h1Q Rb3 Qd5 Bf4 Bbc6 Rb6 Bcb5 Bd2 Rgf5 Bg5 Rf4 Bh4 R8f5 Bf6 Rg5 Bg7 Rd2 Rc3 Rc2 Rb3 c6 Rb8 Qad1 Rc8 Q1d3 Qa1 Ba4 Qe1 Qa6 Rb6 Bab5+ Qa5
bR5q/K1P2R2/P2P2BB/q3p2R/1n1B4/1k2bnQ1/qN4Pr/2n1Nrbb b - - 0 1 illegal: No proof kernel
5n2/1P1Nr1Q1/3n1qkb/2n2qPR/2RN4/4r2p/PPbKBb2/BN1b2rR b - - 0 1 illegal: Other
Q1b1Bb2/BpRbn1n1/1K4b1/P1nr1P2/1N3r2/1qP3b1/1N1PB3/1k3NbR b - - 0 1 illegal: No proof kernel
R4k1N/3B2nr/rr2b1R1/b5b1/PB1n3r/P1Q3Bp/qbb2PPK/2RN4 b - - 0 1 illegal: No possible last move
1rn5/Q2N2K1/2bbB3/6nP/b1rP1PNr/RBR5/b1PpRr1B/k4q1b b - - 0 1 illegal: No proof kernel
1kB1Q3/2rb1nBP/3PP1N1/2Rn4/rnpBnN1r/1N5P/1b1n2K1/q2R1r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 Kf2 Kd7 e4 a5 d4 f5 b4 g5 e5 c5 h3 Kc7 e6 f3 d5 g4 h6 c3 Ra3 g3+ Ke3 g2 Kf2 c2 Bg5 c1R Bc4 a4 Bd2 f4 Be3 Bd7 Bd4 Bg7 Qc2 Qf6 Bb2 Na6 b6+ Kb8 b7 Nc7 d6 Nd5 Ne2 g1N Rc3 a3 b5 a2 Qg6 a1N Nd2 Nc2 Nb3 Ncb4 Bd3 Ra4 Qe8+ Qd8 Ba1 Ngf6 Bc4 Rc2 Kf1 f2 Kg2 Nf3 Rd1 f1R h7 Ng5 Bd3 Nf7 Be4 Rg8 Bb2 Ka7 b8N Qa5 b6+ Kb7 Bd3 Ne4 Nc6 Qa6 Ne5 f3+ Kh2 f2 Kg2 Qa5 Ng6 Be5 Nf4 Rg7 Qe7 Kb8 b7 Rd2 Ba6 Rd4 Rcc1 Rc4 Ba1 Bb2 Rc2 Rh1 Rc3 f1N Rcc1 Nfd2 Qe8+ Ka7 Rc3 Rf1 b8B+ Ka8 Bc8 Rd4 Rg3 c4 Ba7 Qa6 Bc5 Kb8 Rg5 Ng3 Ne2 Rh4 Nef4 Nge4 Rf5 Ba3 Bf6 Bb2 Bcd4 Qa7 Bg1 Qd4 Bf2 Qc3 B2d4 Qc1 Bfe5 Qa1 Rh5 Nb6 Re1 Nfg5 Ba6+ Bc8 Bb7 Rc7 Bg7 Nf7 Rc5 N6d5 Rb1 Nb6 Rd1 N6d5 Qe7 Bd7 Bc8 Ka7 Qf8 Kb8 Qe8
7k/2qbN2p/1N2BPnb/B2bR3/P3n1rP/2RqBPbb/2rQ4/K3Rb2 b - - 0 1 legal: proof: d4 a5 c4 e5 g4 f5 gxf5 exd4 b4 b5 cxb5 axb4 Kd2 Kf7 Kc2 c5 Kb2 g5 a4 Kg7 h4 d5 e4 d3 f3 d2 b6 b3 e5 g4 b7 d4 e6 c4 e7 c3+ Ka3 b2 Ka2 c2 e8R g3 Re3 d3 Re2 g2 Rf2 Nf6 Qe1 d1B Qe8 d2 Nc3 b1B+ Kb2 Nbd7 b8B Be2 Be5 d1B Bh2 Ne5 Be3 Rg8 Nd5 Kh8 Bg3 Ne4 f6 Bh6 Ra3 c1Q+ Ka1 Bd7 Nb6 Qcc7 Rc3 Ng6 Nh3 g1B Nf4 Bh2 Nfd5 Bb3 Ne7 Rc8 Bh3 Bd5 Re1 Bf1 Be6 Bc2 Bd6 Bg3 Bb4 Bh3 Rd2 Bd3 Ba5 Bdf1 Rdd3 Nf4 Qh5 Rg4 Qg5 Ng6 Rc5 Qa7 Rb5 Rc2 Rc3 Qdc7 Rbc5 Qa6 Qf4 Qd3 Qg5 Bb3 Re5 Bd5 Qf4 Bf2 Qh2 Bg3 Qd2
Bn1R4/nQ1Pr3/3PN1r1/n1n1K3/pnkNPR1b/2B2b1P/5B2/R3qqn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 Kf2 Kd7 e4 Kd6 b4 c5 d4 a5 h3 g5 b6 f5 b5 a4 b7 f3 Kg3 f4+ Kh2 f2 b6 g3+ Kg2 c4 Kf3 g4+ Ke2 g2 Be3 g3 Kf3 c3 Qd3 c2 Ne2 c1N Rg1 Ra7 Qb5 Nf6 Bd2 Na2 Bc3 Rg8 Qa6 Nb4 Qc4 Rg6 Rh1 Be7 Qb3 Nfd7 Qb2 Nc5 Na3 Bh4 Nc2 Qf6 Qb3 g1Q Rh2 g2 Rh1 N4c6 Qb1 Nba6 b8R Re7 b7 Na7 Qb5 Bd7 Rd8 Nb8 Qb2 Kc7 d6+ Kc6 Qb3 Bc8 Qf7 Kb5 d5 Kc4 Ncd4 Bf5 d7 Qa6 Ne6 Qa5 Bd4 Qe1 Rh2 Qh1 d6 Qg1 Bc3 Qh1 Ng5+ Be6 Qf5 g1N+ Kg4 f3 Kf4 Qg2 Ke5 Qh1 Qf6 Bg4+ Ne6 Bh5 Qg5 Bg4 Qd2 Qg2 Qb2 Qh1 Bg2 f1N Nd4 f2 Qb1 Nd2 Bf1+ Be2 Rg2 Ndb3 Rg4 Qf3 Rf4 Na5 Qb2 Qd3 Qb1 Bf3 Qb2 Nba6 b8B Qde2 Bc7 Nb8 Bb6 Qd3 Be2 f1N Bd1 Qb1 Bc2 Ne3 Bb3+ Kd3 Bd5 Nc2 Qb3 Nb4 Ba8 Qf1 Qd5 Qbe1 Qb7 Kc4 Ne2 Nca6 Bf2 Nc5 Nd4
bn3R1K/4B3/qpn2r2/2Qr1N1P/1nRPrbk1/2bNRrB1/PP4n1/1N6 b - - 0 1 illegal: No proof kernel
q1rB3r/B4b1R/Q3q2b/1P2p1PN/1nn1PNP1/1k1b3R/1Nn4b/B1K2n2 b - - 0 1 legal: proof: a4 b5 axb5 h5 d4 c5 g3 cxd4 Bg2 h4 f4 g5 fxg5 h3 Bd2 hxg2 Be3 Bh6 Bc1 Bf8 Kd2 f5 c4 Kf7 h4 Ke6 b4 a5 h5 d5 g4 a4 b6 d3 e3 f4 c5 d4 b7 Kd5 e4+ Kc4 b5 e5 h6 f3 h7 f2 c6 f1N+ Ke1 d2+ Ke2 a3 c7 a2 Rh6 Ne7 Nc3 Nf5 Nh3 g1B Nf4 Bh2 Rh3 Nc6 b8B Be6 c8N Nb4 Ne7 Bh6 Neg6 Nd6 Ba7 Bf7 Qa4 Rc8 Qa6 Kb3 Kd1 Nc4 Bb2 Qf6 Rb1 a1Q Nh5 Qe6 Ngf4 Qa5 Ra1 Qd8 Ra2 Qdd5 Ba1 Qa8 Ke2 d1N Na4+ Nde3 Nb2 d3+ Ke1 Ned5 Kd1 Nc2 Kc1 Ndb4 Ra4 Rhe8 h8B Rf8 Bf6 Rh8 Ng3 d2+ Kb1 d1B Bd8 Re8 Kc1 Be2 Ngh5+ Bd3 Ra2 Rh8 Ra5 Nc6 Ra4 N4e3 Rd4 Nc4 Rd7 N6b4 Rc7 Bg8 Rg7 Bf7 Rh7
3r1bBn/4bP1R/rnp4r/N2P1rB1/N4k2/2P1n1nq/qQ3PR1/R3KB2 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 e5 f5 e6 dxe6 h3 e5 Qf3 e4 Qd1 Bd7 Be2 Bb5 Bf1 Be2 gxf5 g4 Bb2 g3 Bc1 Bg4 hxg4 Qd3 Ba3 Qd4 Bc1 Qd8 a4 Kd7 d4 Kd6 g5 e5 g6 b5 f6 h5 d5 e3 f7 h4 a5 h3 a6 g2 g7 b3 a7 h2 Bd2 b2 Bc1 c6 Qd2 e4 Qd4 b4 Ra2 b3 Nh3 g1R Qb4+ Ke5 Ra4 e2 Qa3 Qc8 Rd4 Ne7 g8R Rg5 Rd3 Ng6 Bd2 Rf5 Rf3 Nd7 Rg7 Nb6 Be3 Rh6 Nd2 b1Q+ Qc1 b2 Nb3 Nh8 Rh7 Qa2 Na5 b1R Rg3 Ra1 Nf4 Qe6 Rg5 Rd8 a8B Qc8 Rhg1 h1N R5g2 Ng3 Ne6 Be7 Bg5 Qd7 Kd2 e1N Bb7 e3+ Kd1 Ke4 Bba6 e2+ Kd2 Kf3 Qb2 Qc8 Nc5 Qe6 Bh4 Kf4 Bd3 Qd7 Na4 Qe6 Rh2 Ng2 c3 Ne3 Be4 Bf8 Rhg2 e1B+ Kd3 Bd2 Rh1 Nh5 Ke2 Bc1 Ke1 Ng3 Qb1 Bca3 Bg5+ Kg4 Qc1 Bae7 Bb1 Qg6 Qb2 Qh5 Rh4+ Kf3 Rd4 Qh3 Rd1 Qc4 Bc2 Ra3 Bcd3 Qa2 Ra1 Qb3 Nb7 Ng6 Rg7 Rf6 Nac5 Nh8 Bh7 Qa2 Bg8 Rf5 Rh7 Ra6 Na4 Ke4 Na5 Kf3 Bf6 Kf4 Bg5+
b2qbb2/5Rp1/1NP1k1Pr/2PR1N1q/2rr4/2Q1B2n/q2Pb1RK/4b1NB b - - 0 1 illegal: No proof kernel
1bk1n2r/1P5r/5R2/3r3B/3PrPqB/N2pb1N1/1rRP1Nqr/R2bK2Q b - - 0 1 illegal: No possible last move, all moves rejected
2b1R1Q1/1q1rn1bK/1N3RPb/2q1n1bP/1p6/NPqP1B2/1BqN3R/b2k4 b - - 0 1 illegal: No proof kernel
3B4/1kR1r2b/RP1qn1nb/b4B1p/R5qn/b1PBqNNP/QP6/3Kn3 b - - 0 1 illegal: No proof kernel
n1RR4/pNn4q/4r1r1/rr3r1B/1B2nNPQ/1Pn1R3/P1Pk1Nr1/6bK b - - 0 1 illegal: No proof kernel
2n2B1N/1q1nB1r1/2NrP1np/2R3q1/1b4pP/1P3r1R/QBKP1N1k/6bb b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e6 c4 Qd7 cxd5 Qd8 Bg2 Qg5 Be4 fxg4 f5 Qe7 f6 Qd8 Bf5 exf5 h4 Kd7 e4 Kd6 f7 Ke5 b3 Kf4 b6 Kg3 d6 a5 e5 c5 e6 g5 b7 c4 d7 c3 Na3 h6 Nc4 f4 Qe2 c2 Qd1 f3 Nb6 a4 Ra2 f2+ Ke2 f1R Kd3 a3 Nf3 Rh7 Qe2 Rg7 Ne1 Ne7 Qd1 Rf3+ Ke4 Ra6 Bb2 c1N Rg1+ Kh2 Nd5 g3 Qc2 g2 Nf4 g4 Ned3 Ne2 Ng6 Nf4 Nh8 Rd6 Nf2 Nfg6 Qb1 Qb6 d8B Nd7 b8N Bb7+ Nc6 Nc8 Be7 Qb5 Ra1 Qg5 Qa2 Ba8 Rgc1 g1B Rc5 Bb7 Rac1 Ba8 R1c3 Bb7 Qb1 a2 Re3 a1Q Qa2 Qf1 Rec3 Qb5 Rd3 Rf6 Rg3 Rf4+ Ke3 Qb6 Ke2 Rf3 Kd1 Ba8 Kc2 Qb7 Bd8 Be7 f8B Rd4 Rc3 Bb4 Bde7 Rd6 Rc5 Qc7 Re5 Rff7 Rc5 Qa7 Nd4 Bh1 Nc6 Qb7 Na7 Rf6 Nc6 Rf3 Rh3+
k5nB/Rqr1r3/2bPN2p/1PPPb2K/RN1r4/4R3/q1pq1BBb/2n2Q2 b - - 0 1 illegal: No possible last move, all moves rejected
5Q2/1K3Rnr/NNp1b1n1/1q3Pn1/2P1Bpr1/P1N2B2/P3r2B/q3bkbR b - - 0 1 illegal: No proof kernel
1n1nBb2/1b1R1k1b/NP6/2r3p1/KR4P1/p4qq1/n1r3PP/NBQq2BN b - - 0 1 illegal: No possible last move, all moves rejected
5bQ1/b1n1rPr1/4p3/2RnPR2/kp2P2K/q1R1Pq1B/BB2nN1N/1r5q b - - 0 1 illegal: Other
2Brb3/3RRpP1/3q1rqr/1B4PR/bnN1n1Qp/2P1bPNk/1K6/3B2n1 b - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 e5 b4 exd4 Ba3 c5 bxc5 Nf6 Bb4 axb4 Rh6 Ng8 Rh2 Be7 Rh1 Bf8 Kd2 Ke7 Kc1 Ke6 g4 b5 e4 d5 a4 h5 c6 h4 c7 d3 g6 d4 c3 d2+ Kb2 b3 g7 d3 a5 b4 e5 Nf6 g5 Kf5 e6 Ne4 e7 Bd7 c8R Be8 a6 Qd6 a7 Na6 Na3 Rh6 Qc1 Kg4 Qe1 d1B Qe3 d2 f3+ Kg3 Rc7 Rd8 a8B Bc2 Bb7 d1N+ Kc1 Ndf2 Bb5 Bd1 Nc4 Nh3 Rd7 b2+ Kb1 Kg2 Ne2 Ng1 Bc8 Ba4 Qf4 Rf6 Ka2 b1R Ng3 Rd1 Kb2 b3 Rb1 Re1 Rd1 Nb4 Rd5 Rd1 Rc5 Rh6 Rc6 Rd5 Ra6 Rf5 Rb6 Rff6 Rb8 Ne2 Re1 Ng1 Re2+ Kh3 Rb6 Nd2 Re6 Ne4 Rbb7 Rf5 Rg6 Rf6 Ra7 Rh7 Rh6 Rh8 Rh5 Rhh6 Ka3 b2 Rab7 b1Q Ra7 Qbd3 Kb2 Nc5 Rab7 Qg6 Rbc7 Bd1 Ba4 Ne4 Bb3 Be2 Bd1 Bd3 Rb7 Bc2 Rb5 Qb6 Rbd5 Ba4 Rc7+ Bed7 e8B Bc5 Re5 Bf2 Re7 Qd6 Ra7 Be3 Rb7 Bg4 Bb5 Bd7 Rc7 Qf5 Ra7 Be8 Rad7 Qg6 Qg4+
2nNB1B1/1rN1pr1b/K4Rrk/1n1p2b1/4P1PP/Qq2bP2/RN3B2/1q4n1 b - - 0 1 illegal: No proof kernel
B1bkr3/1qP2P2/5q1p/pn1NB2P/4RQb1/2Nb3r/3RnP2/KnB2q1N b - - 0 1 legal: proof: e4 b5 d4 c5 a4 cxd4 axb5 f5 g3 fxe4 Bf4 e6 Bg5 Bd6 Bc1 Bf4 gxf4 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 a5 b4 g5 c4 d5 Kc2 d3+ Kb2 d4 h4 e3 c5 d2 f5 e2 f6 e1Q b6 g4 c6 e5 b5 g3 b7 d3 b6 g2 Rh2 e4 Na3 e3 Qb3 d1B Nb1 d2 Ra2 e2 Qa4 Ne7 Qf4 Na6 b8N Nc7 b7 Nb5 Na6 Bc2 b8B d1B Ka1 Bd3 Nb4 Nd5 Be5 Ndc3 Rd2 Qe7 f7+ Kd8 Rh1 Qf6 Nd5 Rb8 Rh2 h6 h5 Re8 Rh4 Rb7 Nh3 g1N Ng5 Rb8 Bh3 Qf1 Ne4 e1Q Ng3 Bdg4 Nh1 Rb7 Ne7 Nge2 Nd5 Ne4 Nbc3 Rd7 Rb2 Nd2 Ra2 Nb1 Rd2 Bf3 Be6 Bg4 Bf5 Qd1 Be6 Rde7 Bd7 Qb3 Be6 Bb7 Bc8 Ba6 Bb7 Re6 Bd4 Re3 Be5 Rh3 Ba8 Bac8 Qc4 Bgd7 Re4 Bg4 Qd4 Qb4 Qe3 Qbe7 Qf4 Qb7 c7+
3R3n/P1b4p/2bRK3/B2P1P1k/1r1N3P/B2Q1pq1/r1R1n3/1q1qNbBr b - - 0 1 legal: proof: f4 a5 c4 g5 b4 d5 cxd5 axb4 e3 f5 Be2 g4 e4 Ra7 exf5 Ra8 Bf3 gxf3 Kf2 Kf7 Kg3 c5 Kg4 e5 h4 b5 d4 b3 a4 c4 g3 e4 a5 b4 d6 b2 d7 c3 a6 c2 f6 Kg6 f7 e3 Ra2 e2 Be3 e1Q Na3 c1R Ne2 b1Q Nc2 b3 Bg1 Bd6 f8B Bc7 Ba3 b2 Qd3+ Kh6 Kf5 Kh5 Rh2 Ne7+ Ke6 Nbc6 f5 Bb7 d5 Ng6 Ra1 Qd1 Ned4 Qg5 Ne1 Rhb8 d8B Nh8 Rf2 Ra7 Rc2 Ba8 Ra2 Rb4 Ra1 Na5 Ra2 Bc6 Ra1 Nb3 g4+ Kh6 Ra2 Qf4 g5+ Kh5 g6 Qg3 g7 Ra8 g8R Ra7 Nb5 Nd4+ Kf6 Ne2 Ke6 Qa1 Nd4 b1B Rab2 Ba2 Rb1 Bc4 Rb3 Qb1 Re8 Rab7 a7 Rb8 Rbc3 Rb2 Rf8 R8b4 Rb3 Ra2 Rbb2 Bf4 Ba5 Bc7 Rd8 Nc3 Qe4 Bf1 Qd3 Ne2 Rd6 Rc4 Rb5 Rb4 Rb8 Bg2 Bf2 Qd2 Rbd8 Bh3 Ng2 Rh1 Be3 Qdd1 Ne1 Bf1 Bg1
bN1n4/P1qNP1B1/N1nr2b1/k2p2Rr/5Pq1/3p2BQ/K6P/3BbRqn b - - 0 1 illegal: No proof kernel
5b1R/r2N1r2/bB1b1n1P/1bbp1QKN/q2NB1P1/P7/2R1pB1P/2n1n2k b - - 0 1 illegal: No proof kernel
6R1/r6N/NN5p/1K1nnrrP/3B1qbP/p5Qk/RbPbP3/4bbBB b - - 0 1 legal: proof: h4 c5 a4 e5 f4 b5 fxe5 bxa4 g4 Qg5 d4 Qh5 gxh5 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kg4 e6 d5+ Kb5 g5 e7 a5 e8N f5 Qe1 h6 Rh3 d3 Nd2 a3 Ngf3 f4 Rb1 a4 Rb2 a2 Nd4 a1B Nc6 f3 Rb3 f2 Nc4 d2 Rh1 d1Q Rh2 d4 Rhh3 d3 Bb2 a3 Bg7 d2 Rbc3 Ne7 Rh2 Nd7 Rh1 Nd5 Rhh3 Qc1 Bd4 d1R Rb3 Bb2 Bg2 f1B Nb6 Ne5 Nb8 Rg8 Qf2 Qf4 Bh1 Ra7 Na6 Rd3 Rh2 Rf3 Rg2+ Kh3 Nf6 g4 Nh7 g3 Rg1 Bg4 Rg2 Bc1 Rb2 Bd2 Ra2 Rg5 Qe1 Rb3 Na4 Nc6 Bf2 Rf5 Rg1 Bg7 Kc5 Bb2 b5 Bf3 b6 Re7 b7 Ne5 Nb6 Rg7 Rg2 Rc3+ Kb5 Rcc7 Nc4 Rcf7 b8B Rg8 Bba7 Rfg7 Bae3 Ra7 Bd4 Rg6 Bfe3 Rgg7 Rf2 g2 Nb6 g1B Rg2 Bf2 Rg6 Bg3 Bg1 Bg4 Rg5 Rge7 Rg8 Rg7 Na8 Rgg5 Nb6 Bg2 Qf1 Bge1 Qf2 Bf1 Qg3+
r1BN1bk1/B2R3b/R3KP2/2Pn1rr1/r1P3qr/1nQB3P/2pnp1N1/4R3 b - - 0 1 illegal: No proof kernel
3rQ2r/r2PqRKp/n1P2r2/1k4PP/2Rn1NRr/1B1BN2b/p4Bn1/2b5 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 gxf4 Kf2 Kd7 g4 a5 d4 e5 h4 f5 c4 a4 b6 Kc6 d5+ Kb7 g5 Ka6 d6 e3+ Kf3 a3 h5 e2 b7 e1R c6 a2 c7 Ne7 Rh4 Ra7 Ne2 Nec6 c5 Qe7 Be3 Kb5 Rg4 Na6 Nd2 Bd7 Qc1 Rd1 c8B Bg7 Nc4 e4+ Kg2 f3+ Kg3 f2 Kf4 Rd2 Qe1 Bb2 Rc1 Nd4 c6 Ba3 Rc2 Bc1 Rc3 Be6 Ke5 f4 d7 f3 Nf4 Rb2 Bd3 f1R Bg1 e3 Bf2 e2 Rc2 Rb4 Ne3+ Rc4 Rc3 Rd8 Bc2 Ra4 Bb3 Rh1 Rc4 Rh4 Qd1 e1N Qe2 Ng2 b8R+ Rb7 Ra8 Ra7 Bb7 Rh8 Rf8 Ra8 Rf7 Rad8 Qc2 Ra5 Qg6 Ra3 Qg8 Ra4 Qe8 Ra5 Bg1 f2 Bc8 f1R Bf2 Qd6+ Kf6 Qe7+ Kg7 Ra3 Rg3 Bh3 Rg4 Re1 Nd1 Re6 Ne3 Rf6 Bb7 Nb8 Bc8 Ra7 Ba6+ Ka5 Bb5 Na6 Ra4+ Kb6 Bd3 Kc5 Rc4+ Kb6 Ng6 Kb5 Nf4
1r6/1P3P2/r1N1B3/2np1bN1/r1N1r1RK/1PbpBR1P/k3b1Bn/q2n2Q1 b - - 0 1 illegal: No proof kernel
1bnn1q2/3bkPB1/r4R1b/Q1NBB1PP/1K6/1ppR3b/Pb2RN2/q5r1 b - - 0 1 illegal: No proof kernel
7b/q3PPn1/b1B3Qp/r2B1b1P/1N3KN1/BbR1n1Pb/3pN1q1/1R1k3r b - - 0 1 illegal: No proof kernel
5rR1/1n1np1NK/PP2b1QB/P5B1/2qbR1N1/q1b1p3/2NbPrRb/1k6 b - - 0 1 illegal: No proof kernel
n1b3qR/4kN2/3Br3/qR2PP1p/1PB1Q2n/1r2b3/p1R2PNN/K4nbn b - - 0 1 illegal: No proof kernel
n1RN2rN/q3bK2/1bPb1n2/2Q1Pb1r/B4B2/qBR2p2/1kP1r1pP/3N4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 bxa4 d4 c5 dxc5 e5 fxe5 hxg4 Kf2 Ke7 Kg3 Ke6 Kf4 f5 b4 g5+ Kg3 a5 e4 d5 b5 f4+ Kf2 d4 b6 f3 Kg3 d3 b7 d2 c6 a3 Nh3 a4 Be2 a2 Bf1 a3 Bd3 Qb6 Rg1 Qa7 Bb5 Be7 Nc3 Rh5 Ba4 Na6 b8N Nf6 Nd7 Nc7 Rb1 a1Q Rb3 a2 Nc5+ Kf7 Qe1 d1R Bf4 Rd2 Nd1 Re2 Qc3 Bf5 Nb7 Ke6 Qc5 Rg8 Rc3 Na8 Rg2 Qc1 Rg1 a1B Rg2 Kf7 e6+ Kg6 Rg1 Qa3 Nd8 Bd6 e7 Kg7 e8B Be7 Rb3 Be5 Bf7 B5d6 Bc4 Kg6 Rc3 Kg7 Nb7 Kg6 Bcb3 Kg7 Rc4 Kf7 e5 Ke6 Qb6 Kd5 Rc3+ Ke4 Qa5 Kd4 Nd8 Qa2 Bd2 Qa3 Nf4 Rh4 Ng6 Rh5 Nh8 Re1 Kf2 Re2+ Kf1 g3 Bf4 g4 Rg2 Re3 Rg1 g2+ Kf2 Re2+ Kg3 Rhg5 Kh4 g3 Re1 g1B Qc5+ Ke4 Rf1 g2 Rf2 Re1 Rd2 Re2 Qa5 Bb6 Qc5 Bb8 Rd7 Bbd6 Rc7 R5g6 Qb5 Kd4 Rc8 R6g7 Ng6 Rf7 Kg5 Rff8 Kh6 Rh8+ Kg7 Rfg8+ Kf7 Rh4 Nh8 Rh5 Re3 Bd3 Nf2 Kc3 Qc5+ Kb2 Nd1+ Kc1 Nb2 Bf5 Nd1 Kb1 Rc3 Ka1 Nf2 Kb2 Nd1+
1b1N1N1k/3n4/r1PPp2b/3R1N1K/2pR1P2/nqB1r1P1/1nn1BB2/Q5qb b - - 0 1 illegal: No proof kernel
b5R1/2q5/PN2NQ1r/1B2P1N1/qP1bRKnp/2p3P1/1B2k1rn/3qBb1b b - - 0 1 illegal: No possible last move
5RR1/1Brq1n2/PP4N1/2r1RqbQ/2N1P3/6rk/pB1p2bP/K1brn2B b - - 0 1 illegal: No proof kernel
2Nq3R/NKnnB1PN/5bPP/k1rB1B1n/b1p2p2/4Q3/1Rq1q2P/2n1r3 b - - 0 1 illegal: Other
NBb1nn1b/5kp1/3qPBr1/PR6/q2Prrn1/1Pn2N2/B2Qp1K1/1R5N b - - 0 1 illegal: Other
7n/2rN1Ppq/1bPp2P1/1n1k4/1KNqPbR1/rRB2n1N/5nq1/3B1Q1R b - - 0 1 illegal: No possible last move, all moves rejected
q2Rn3/4pb2/3B1P1b/Pr1n1knP/1N2n1BR/1r3B2/RbK1P1pQ/6Nq b - - 0 1 illegal: No possible last move, all moves rejected
1BK2BB1/3Pq1Rk/2nRPb1n/1r5r/qp6/1Q2P2P/rpN2N2/qr3N1b b - - 0 1 illegal: No possible last move
1R6/3P1p1q/qbN3r1/3Pq2n/RB1B2nK/b2Bn2P/2pr1P1R/3Q1knN b - - 0 1 illegal: No possible last move
3Nbnrq/1n1pb1Q1/5bPN/1r2R1n1/K2bk3/B1P2NP1/pP2BB2/q2R4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 c5 h4 g5 hxg5 cxd4 Kd2 Kf7 f4 Kg6 c3 Kf5 Kc2 h5 Kb3 e5 b6 a5 b7 a4+ Kc4 d3 Kb5 d2 g6 a3 Qb3 d1N Qa4 e3 Qc4 e2 Qa4 e1B Rh2 h4 Rh1 e4 Qd4 a2 Qd6 h3 Qd4 h2 Qa7 e3 Bc4 e2 Bd2 Be7 Ka4 B1h4 g3 e1B Qa6 Ke4 f5 Bf2 f6 Rh5 f7 Nc6 b8B Bb7 f8N Na5 Be1 Bd4 Ne2 Bhf6 Bd6 Rb5 Ne6 Bd5 Bf2 Nb7 Re1 h1Q Ba3 Qc8 Nd8 Bf7 Qa5 Be8 Qa7 Rb8 Qc5 Qg1 Qh5 Qf1 Qh6 Qg1 Qg7 Qf1 Be3 Nf2 Rd1 Nh3 Bf2 Ng5 Nd2+ Ke5 Nf3+ Ke4 Nf4 Qg1 Nf7 Qd8 Rac1 Rc8 Rc2 Qh1 Be2 Qf1 Rdd2 Qa1 Nh6 Bf7 Qh8 Bfe5 Rc1 Nf6 Rcd1 Nfh7 Qg7 Qh8 Nh4 Be3 Ne6 B5f6 Rd5 Rg8 Nf3 Nf8 Rf5 Bed4 Nd8 Be8 Re5+
q1n1b1B1/r1P3P1/p1nN1nqP/P4N2/1q1Q3b/B2p1qRr/RBR4k/K7 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 g5 fxg5 e5 b4 cxb4 d4 exd4 Kd2 Ke7 c4 Ke6 Kc2 Ke5 Kb2 b5 e4 d5 a4 f5 h4 b3 c5 f4 a5 a6 c6 f3 h6 f2 h5 d3 c7 d2 g6 Kf4 e5 Kg3 e6 d4 e7 b4 e8R Ne7 h7 Bd7 Bc4 f1Q Rh2 Qf3 Nc3 Nc8 Na4 Be7 Bd5 Nc6 Rf8 Be8 Rg8 Bh4 Ra2 Ra7 Nb6 d3 Nc4 Qe4 Qe2 d1Q Qe3+ Qdf3 Nd6 Qg5 Kb1 b2 Rc2 Qgg4 Ne2+ Kh2 Qd4 Qg1 Ra3 Qgh1 Ka2 b1N Ng3+ Nd2 Ka1 b3 Raa2 Qeg4 Ngf5 Qgg2 Qf2 Ne4 Qd4 Nf6 Bf7 Qe1 Rg7 Qb4 Bg8 Qb8 Ba3 Qa8 Bf7 Rf8 Bg8 b2+ Kb1 Rf7 h8B Re7 h6 Re3 Re7 Qff2 Re4 Rh3 Rg4 Qff3 Rg3 Nd7 Be5 Nf6 g7 Qh5 Ra1 Qg6 Ka2 Qe2 Kb3 Qg2 Ra2 b1Q+ Kc3 Qe1+ Kb2 Qb4+ Ka1 Qf2 Qc5 Qg2 Beb2 Qf2 Qd4 Qe2 Rc1 Qf3 Rc2+
rN1Br3/1P2B2n/B5p1/1RrbPr2/qPR5/2kqPN1K/2p1n2N/b4Qb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 dxc4 Kf2 Kd7 Kg3 Ke6 h4 Kd5 d4 f5 b4 a5 b6 c5 b7 c3 h5 Kc4 h6 a4 h7 a3 Ra2 c2 Nh3 f4+ Kg2 f3+ Kg3 g6 Kh2 f2 Bg5 c1R Qe1 g3+ Kg2 Nf6 Ng1 Bg7 Nd2+ Kc3 Rh4 c4 Ngf3 Re8 h8N Nh7 Nh2 Nc6 Nf7 Be6 Be7 Bd5+ Kh3 g2 Ra1 Qd6 Nd8 g1B Re4 a2 Ndf3+ Kb2 Rf4 c3 Rf5 Rc2 Rc1 a1Q Qd1 Qa4 Qe1 Na5 Nc6 Nb3 Nb8 Bh8 Rf6 Qda6 Rb6 Qd3 Rb5 Bf6 Bg2 f1R Qd1 Rf2 Bf1 Nd2 Qe1 Ne4 Qd1 Ng3 Qe1 Bg5 Qd1 Bd2 e3 Ne2 Qe1 Rg2 Qf2 Rg5 Qe1 Rf5 Qf2 Bb3 d5 Bc4 d6 Bd5 d7 Kb3 Re1 Bc1 d8B Bb2 Rd1 Ba1 Qe1 Ra2 Qf2 c2 Qg2 Kc3 Qh1 Qc4 Rd4 Qd3 Re4 Ra6 Qg2 Rc6 Qf2 Rc5 Rf4 Qb3 Re4 Ra8 Rc4+ Kb2 Qg2 Qa4 Rh4 Nc1 Rb6 Qe4 Ba6 Qd3 Rb5 Ne2 Qf1 Kc3 Rc4+
1Bkr2qR/1p2nrQ1/BNb1RNp1/P1K1Pb1P/3R2nq/4q2B/qP6/7r b - - 0 1 illegal: No proof kernel
1b1q3n/P1qN1n1N/K1PRq1Q1/1p1r4/p1P3r1/1qk5/2PB3R/N2bnBB1 b - - 0 1 illegal: No proof kernel
2r2q1B/P2K2pq/B2NP3/P2Rb1nR/r4nP1/1p2k3/b3bb1r/NB1N3Q b - - 0 1 legal: proof: f4 a5 d4 h5 b4 c5 bxa5 h4 g4 e5 fxe5 cxd4 Bf4 Qg5 Bg3 hxg3 Nh3 Qf6 Ng1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 d5+ Kb5 f5 c4 g2 a4 f4 h4 f3 e4 f2 h5 d3 h6 d4 h7 d2 a6 d3 a5 Nc6 c5 Nf6 a7 Nb4 c6 Bd6 c7 Qf8 Rh5 Nbd5 Ra3 Nf4 Nh3 g1B Be2 f1R Rf5 Bf2 Rh5 b6 Kc6 b5 Rb3 b4 Na3 Ba6 c8N Bc4 Qe1 d1B Nc2 d2 Rd3 Ba2 Na1 b3 Rd5 Rb8 Bc4 Be2 Ba6 Ra8 Qc1 d1Q Qb1 Bb8 Nd6 Qd3 Qd1 Rh1 Qb1 Rh2 Qh1 Rg8 h8B Nh7 Rd4 Ng5 Rd5 Ke7 e6 Kf6 e7 Qb1 Nc4 Be5 e8B Rb8 Kd7 Rb4 Nd6 Ra4 Bg6 Bb2 Rd3 Ke5 Rd1 Qd3 Bh7 Kd4 e5 Bc3 e6 Ke3 Be4 Qc2 Rd5 Be5 Bed3 Qf5 Be4 Rc8 Bed3 Qc5 Bc2 Qh7 Bb1 Bh4 Nf2 Qb4 Nb7 Qf8 Nd6 Bg3 Nd3 Be1 Nb2 Bf2 Nd1+
2N1n1K1/pBrqN1R1/4r3/4p1b1/NBB2PPP/2n4P/nQR2q1b/1k1b3b b - - 0 1 illegal: Other
2N2N2/pR3q2/1Bn2bnk/P1K2Pn1/2RP4/rQRb1n2/P1p1NB2/1q2r1q1 b - - 0 1 illegal: No proof kernel
r1r2bKB/p1N2P1R/1br2N2/Qb1R1P2/2kPr3/5Bp1/P1nB2nq/1q5N b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 h5 g4 hxg4 b4 d5 bxc5 dxc4 Ke2 Kd7 Ke3 Kc6 Ke4 Kb5 Ke5 g5 f4 g3 h4 g2 d3 g4 f6 c3 c6 c2 f7 g3 c7 Bd7 c8N Nc6+ Kd5 e5 h5 e4 Nd2 e3 Qe1 e2 Nb6 Nh6 Ne4 Nf5 Bd2 c1R Nh3 g1B Bg2 Nh4 Nhf2 Nd4 Bf3 Rc6 Nf6 Nc2 Rd1 Ng2 f5 Qe7 h6 Qa3 h7 Qb2 Ke4 Kc5 Nbd5 b5 Rh3 b4 Nh1 b3 Nc7 Rg8 h8B Be3 Qf1 e1R Rh7 Re2 Na6+ Kb5 Qe1 Bb6+ Kd5 Ree8 Qe5 Rec8 Qc3 Rg4 Ke5 Rcc4 Nc7+ Kc5 Re1 Bb5 Rd1 Rd4 Qa5 Rc3 Nh5 Re4+ Kf6 Kd4 Kg6+ Kc5 Nf6 Kd4 Re1 Rc6 Re2 Kc5 d4+ Kc4 Re1 Qb1 Re3 Qg1 Re1 b2 Rb1 Be7 Kg7 Bf8+ Kg8 Qh2 Re1 b1Q Re2 Rf4 Re5 Re4 Rd5
Bq6/4bk2/NPK2prr/2pnP1bb/RP2bR1b/3nBR2/3bN1P1/3B1Q2 b - - 0 1 illegal: No proof kernel
K2n2n1/1P2QP2/2r1np1N/N4NpP/2B4r/BR1q2nr/2Pr3k/b1RB3b b - - 0 1 illegal: No proof kernel
n2Brn1K/P1pnB1p1/RNr2bQ1/6PR/6qq/1P1RP1q1/4q1B1/kNq5 b - - 0 1 illegal: No proof kernel
2R1B3/Qn1K4/pR2p2B/2Pn1P1n/Nn2Prb1/2N1b1q1/n1k1P1qN/3q2R1 b - - 0 1 illegal: No proof kernel
1N3Nrk/2QPbn2/2p3Pr/1Nr1r1P1/2P1q1b1/R1p2q2/1BB5/KB3rbR b - - 0 1 illegal: No proof kernel
1n2q2k/Rp1NP1pB/bbbq4/bP3Kbr/1N1NR2P/5P2/2r1Q3/1B2B1r1 b - - 0 1 illegal: No proof kernel
2nqQ1Nn/2Rp2k1/q5r1/1Bqr4/1q1PP1q1/2Bn2BP/1RN1p2P/4bRK1 b - - 0 1 illegal: No proof kernel
b2n1RqR/1pbKB1N1/1P1P1N1r/q4BP1/3Pr3/k3Q1N1/3rbrp1/1q4R1 b - - 0 1 illegal: Other
5R2/NQ1b2n1/2p1Pr2/1bbBkBKP/1RPp1N2/1N2bq2/q1bP3r/3R1b2 b - - 1 2 legal: proof: f4 a5 b4 axb4 Bb2 f5 Bf6 e5 Bg5 h6 g3 Nc6 g4 hxg5 fxe5 f4 Nc3 Nd4 Nb1 Nf5 gxf5 Ke7 Qc1 Kf7 Qd1 Ke8 Kf2 Ke7 Kf3 b5 Kg4 d5 e4 c6 a4 b3 h4 f3 a5 d4 e6 Kf6 c3 f2 a6 b2 a7 b4 e7 b3 e8B Ke5 Be2 f1B Na3 b1B Bg6 b2 Bd3 Bc2 Nb5 b1B Qc1 Qf6 Ne2 Bc5 Bf7 Bd7 Qb2 Rf8 a8R Ne7 Nf4 Qe6 R8a4 Qa2 Bd5 Rf6 Rb4 Ba4 c4 Bbc2 Na7 Bb5 Rd1 g6 Kg3 g4 Rh2 g5 Rf2 Rg6 f6 Nf5+ Kh2 Ng7 Kg3 Rgh6 f7 Rf6 f8N Rh7 N8e6 Rh5 Ne2 Rhh6 N6f4 Rh5 Nc1 Rh8 Kh2 g3+ Kg1 g4 Nb3 g2 Kh2 g1B+ Kg3 Rhh6 Rf3 Be3 h5 Rhg6 Kh4 g3 Qb1 g2 Rf2 Rg3 Qb2 Rh3+ Kg5 Rh2 Rf3 Bg4 Qb1 g1Q Rf2 Qg2 Rf3 Kd6 e5+ Kc7 Rf2 Qf3 Qb2 Be6 Bf5 Bd7 e6 Kd6 Qa1 Qb2 Qa6 Ke5 Qb7 Qa2 Bh7 Qh1 Bd3 Rf8 Rf3 Bg1 Nh3 Be3+ Rf4 Qf3 Bh7 Bf2 Rf7 Bg1 Nf4 Be3 Rf6 Rf7 Bf5 Rf8 Rh6 Rf7 Rh8 Rf6 Rf8
2kN2rb/Q3BpP1/nnP1B1rB/n2n1rR1/5PrP/4q2n/1K3p2/R4NN1 b - - 0 1 illegal: No possible last move
1Rn1K3/2p2p1q/4k1PN/1n2nBBr/2qqqP1Q/4PR2/R1r1PBnb/6N1 b - - 0 1 illegal: No possible last move, all moves rejected
2B2R1r/1np2k1n/1P4pB/1n1n1r2/2r1P1PN/R1n5/2P1bRK1/Q1r2NbB b - - 0 2 legal: proof: d4 h5 a4 b5 axb5 e5 e4 exd4 f4 Qg5 Qg4 Qe5 fxe5 h4 Qf4 Nh6 g4 Ng8 Qg3 hxg3 b4 d5 h4 a5 e6 f5 e7 d3 h5 d4 b6 g2 Kf2 d2 h6 d1N+ Kf3 a4 h7 d3 b5 g6 b7 f4 b6 a3 Nh3 g1R Bg2 a2 Be3 d2 Nf2 Ra5 Rh4 Rf5 Bf1 Nc6 b8R Nd8 Rh2 Nc3 Nh1 d1N Rh5 Kf7 Bd2 Nf6 Ng3 Ba6 Rh2 Nb5 Rf2 Nb7 Bg2 Ndc3 Bh1 Rc1 Kg2 Bh6 Nf1 f3+ Kg1 Be3 e8B+ Ke6 Bd7+ Kf7 Kh2 Bd4 Bh6 Bc5 Re2 f2 Nbd2 Be3 Nf3 Bd4 Rb1 a1R Rb3 Ra4 Ra3 Rc4 Nh4 Bc5 Bc8 Bd4 Ng3 f1N+ Kg2 Bg1 Rf2 Ne3+ Kh3 Ne8 Nf1 Ned5 Kg2 Nef6 Ra8 Re8 h8Q Nh7 Qd4 Rh8 Qe5 Nd1 Qb2 N1c3 Qa1 Rc6 Qb2 Nd4 Qa1 Be2 Bd7 Ndb5 Rd8 Rc5 Bc8 Rc4 Rf8+
2Rq4/1K6/N2Rk1Pq/NPB1P1pB/p1bP1q1r/5pbb/2N3nn/1Q1r3B b - - 0 1 illegal: No proof kernel
1K3b1N/N2B1br1/3P1N1p/5p2/BPP2B1p/2q1nQ1P/2nR1nR1/2qr1r1k b - - 0 1 illegal: No proof kernel
2R1qn1k/rb3n2/b2pB1n1/1PrqN2P/3b4/2P2p2/RN1QpBP1/1B1RK3 b - - 0 1 illegal: No proof kernel
1r1BRr2/rqB1b1RK/BPNQ1p2/2R3PP/3Nk3/4q3/pP3p2/n2b2nn b - - 0 1 illegal: No proof kernel
8/R1b1b2K/ppb1R2B/1kP2n2/1p3PN1/Rn1B3Q/PPB5/Nrq1qn1r b - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 f5 exf5 h5 g4 hxg4 Qd6 Rh3 Qd2 Rh8 Qb4 cxb4 Kd2 d5 Ke3 Kd7 Kf4 Kc6 h4 g6 c4 b6 h5 g3 e6 d4 e7 g2 Kg5 a6 f6 d3 e8B+ Nd7 h6 d2 h7 d1N Na3 Ne3 Rh3 Ne7 f7 Qc7 Nc2 Bb7 Bd3 Rc8 Nf3 g1B Nh2 Nf1 Ng4 Bh2 Be4+ Kc5 Rf3 Bc6 Ra3 Nf5 f3 Bfd6 f8R Be7+ Rf6 Bhd6 Bd2 Bh2 Rd1 Qg3 Bf7 Qe1 Na1 Bc7 Be3+ Nd4 Kh6 g5 Bc1 Nf5+ Kg6 Rce8 Bc2 Ref8 Bd5 Rd8 Bde4 Rc8 Ne5 g4 Re6 g3 Bh6 g2 f4 g1Q+ Ng4 Qge3 Rdd3 Q3c1 Rh3 Kd4 Rh5 Nc5 Rg5 Nb3 c5 Kc4 Rh5 Rhd8 h8Q Rd1 Kh7 Kb5 Rg5 Rcd8 Rg7 R8d2 Rf7 Rh2 Qc3 Rh1 Qh3 Rd5 Rf8 Rd1 Ra8 Qce3 Ra7 Rb1 Rb7 Q3d2 Ra7 Qdc1 Bed3+
Bbq2b2/2N3qp/1Kb2B1P/4n3/1Pr2QPp/1r2RPN1/3p1nBN/kR4n1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 Kf7 axb5 Ke8 h5 g6 Qg4 g5 Qh4 gxh4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 c4 d5 g4 d3 b4 a4 b6 d4 f3 a3 h6 d2 f6 d1N b7 d3 f7 d2 Ra2 Nf2 Bd3 Nc6 b8N Bb7 Nc3 Nd4 Na6 Nf6 Bb2 Bc6 Be4 Ne2 Nc7 Qc8 Kb6 Kd4 c5 e5 N3d5+ Kc4 Ba1 Kb3 Ne3 Ra5 Rc2 a2 Nf1 Ra3 Nh2 Rg8 Bd3 e4 Rb2+ Kc3 Ba6 e3 Bb7 Rb3 Ba8 Bd6 f8Q Nd7+ Ka5 Rg7 Qf4 Ne5 Kb6 Rf7 Ne6 Bf8 Nc7 Bd7 c6 Re7 Nh3 Ng1 Ng5 e2 Ne4+ Kd4 Na6 e1B Ng3+ Kc3 c7 Bb5 Bb7 Bc6 Ba8 Qe6 c8B Rc7 Bd7 Qe8 Be6 Qd7 Bc4 Qc8 Rb1+ Kc2 Bd4 a1Q Bf1 Qb2 Bg2 Qc3 Rb2+ Kc1 Ra2 Kb1 Rc2 Ka1 Rb2 Rd7 Nc7 Rd5 Bc5 Rd4 Be7 Rc4 Bd8 Ne2 Rf1 Ng1 Bf6 Nd1 Ne4 Bg3 Re1 Qd4+ Nc5 Qdd7 Ne4 Qg7 Re3 Nf2 Qg5 Bf4 Ng3 Ned3 Qf5 B4d6 Qf4 Ne5 Nb5 Bb8 Nc7 Bd7 Bb7 Ba4 Ba8 Bc6 Rb1+
Nn1NR2Q/2rb2Pr/4PPB1/1q1pk3/n2p3P/KR1n2bR/2B1qp2/2r1B3 b - - 0 1 illegal: No proof kernel
1r3Nk1/R1q3pB/P1B2QP1/3np3/1P2np1q/2PR1qn1/2K3Rb/2B1Nr1b b - - 0 1 illegal: No possible last move
3kbq2/2r2PBN/2B4N/b2P1R2/2qBp1P1/np3pn1/bq2Q1PK/2NrR3 b - - 0 1 illegal: No proof kernel
1n2r1q1/R1R1Rp1q/2p1N2r/n1PrB3/1qP4p/N1P1NPB1/2Qb1b2/3K2k1 b - - 0 1 illegal: No proof kernel
B2nR1K1/3P1pbP/2PN1N1r/P7/2R2nN1/pp1k2qb/2qQ3B/r2B2rn b - - 0 1 illegal: No proof kernel
1qBr4/1r1p1nP1/2Np2NP/p3P2R/R1R5/2bK1bkb/2P2BBr/4Q1nq b - - 0 1 illegal: No possible last move, all moves rejected
RB2rq2/1p2B1PB/pbR1bnK1/1P2k3/5N2/4q1nq/1P3rPp/R1N3rQ b - - 0 1 legal: proof: e4 f5 d4 fxe4 h4 g5 hxg5 c5 a3 Qb6 a4 Qb5 axb5 cxd4 Ke2 Kf7 c4 Ke6 f4 d5 f5+ Ke5 c5 h5 g6 e3 Kf3 e2 g7 e1Q c6 d3 f6 d4 f7 d2 c7 a6 Na3 h4 Ne2 d3 Rh2 h3 Rh1 h2 Nb1 Nh6 Ke3 Nf5+ Kf3 Ng3 Qc2 d1Q Bg5 d2 Qc1 Qb3+ Nec3 d1R Bd3 Be6 c8R Nd7 Na2 Nf6 Nbc3 Qf1+ Ke3 Qf5 Nd5 Rg1 Nf4 Rh3 Rc6 Re8 Qb1 Qa3 Nc1 Rh8 Rc8 Qh3 Ra8 Rh5 Bh6 Qb4 Bh7 Rf5 Nh5 Rf2 Nf4 Bd5 Bg5 e6 Kd3 Bc5 f8B Bb6 Bc5 Ba2 Be3 Qf8 Bh4 Bc7 Ba7 Bb6 Bg5 Kd6 Bh4 e5 Bg5 Be6 Bb8+ Bc7 Bh4 e4+ Kd4 e3 Bg5 e2 Ke3 Ng8 Be7+ Kd7 Kd4 Bb6+ Ke5 e1Q+ Be4 Qd2 Bh7 Rd1 Re1 Nf6 Re4 Rg1 Rc4 Qd3 Rc6 Qb3 Ng6 Rd2 Kf4 Rf2+ Kg5 Qa3 Nf4 Qe3 Bd8 Qea3 Kg6 Qe3 Rc7+ Kd6 Be7+ Ke5 Rc6+ Bc7 Qd3 Rd1 Qf1 Re1 Rd6 Bb6 Qh1 Rg1 Rc6+
3Bn3/bpP1P3/2p1qnb1/2r2pP1/2nr4/kRKR2N1/BN1P3R/q1B3Qb b - - 0 1 illegal: No proof kernel
8/PB2K1b1/1Pp4R/1nNNBP2/rp4k1/r1Rp4/Rq2nP1q/Qr1b1b1N b - - 0 1 illegal: No proof kernel
qBn5/Pp4b1/nR1P1R1r/1N3p2/3pN1BB/1rbKb1P1/qr1P3Q/k5N1 b - - 0 1 illegal: No proof kernel
2q2nn1/N2QPpp1/PBN1r3/N1b1R1rp/rrbR1kP1/7B/2r1P3/4B2K b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 h4 Qd6 b4 axb4 fxe5 Qh6 h5 Qxh5 Na3 Qh6 Nb1 Qh2 Kf2 Kd7 a4 h5 d4 b5 e6+ Kd6 a5 c5 Nd2 b3 Ngf3 b2 Nb3 b1R Bd2 c4 Be1 b4 Ne5 c3 Nc6 c2 Na7 Qe5 Kg1 c1R g4 Nd7 Bh3 Qf5 Ra4 Rc4 a6 Rh6 Na5 b3 Kh2 b2 Rf1 Rc2 Kh1 Rg6 Rf4 Ra1 Re4 b1R Re5 Rg5 Rc4 Ra4 Rb4 Ke7 d6+ Kf6 d5 Be7 Rc4 Nf8 d7 Rbb4 d8N Bc5 d6 Bd7 Qd3 Bb5 Rd4 Bc4 d7 Rab8 e7 R8b6 Ndc6 Qe6 d8B Qc8 Nb8 Re6 Nbc6 Rf5 Rd6 Kg5 Bb6 Kf4 Qd1 Rg5 Qd5 Rf6 Qe6 Rh6 Qd7 Re6 Rd4+
3Qn2B/1nnp3K/R1N1q3/1p1P1nP1/1P2r3/N2b2r1/2N2P1p/1bnB1kBR b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 a5 b4 axb4 c3 gxh4 Rh2 b3 Rh3 Bg7 Rh1 Bd4 Bb5 Bc5 Bf1 Bb4 cxb4 Kf8 Na3 Kf7 Nb1 Ke8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 d4 e5 a4 c5 g4 h3 a5 b2 d5 h2 f6 c4 a6 c3 a7 c2 f7 Na6 f8B Qf6 g5 Qe6 Ne2 Kf3 Ra4 e4 Ra2 e3 Qe1 Nf6+ Kh6 Nc7 Be7 Re8 Nec3 e2 Rg1 h1N Kg7 h5 Nb5 h4 Bf4 c1N Bh2 h3 N1a3 b1B Nc2 Ng3 Rh1 Nf5+ Kg6 b6 Bg1 h2 Nba3 Ba6 Bd8 Rc8 a8N Bd3 Be7 b5 Nb6 Ra8 Nc8 Ra7 Qc3 e1N Be2+ Kg2 Bd1 Kf1 Ra1 Ra6 Na7 Rc6 Qd4 Rc3 Bd6 Re7 Nc6 Nfe8+ Qf6 Qe2 Qh8 Re4 Kh7 Qe3 Be5 Qb6 Na7 Qe6 Bg7 Be2 Qg8 Ned3 Bd4 Neg7 Nc6 Nc5 Qd8 Rg3 Nc4 Nb7 Ra6 Bd3 N4a3 Nge8 Bh8
nBb5/5B2/1pP4N/BP3r1n/1r4RK/R2npkNQ/1P1pN2P/nr1qb3 b - - 0 1 legal: proof: e4 f5 exf5 c5 a4 h5 g4 hxg4 d3 Qb6 d4 Qb5 axb5 cxd4 f4 Kf7 Kf2 Kf6 Kg3 a5 c4 g5 c5 d5 c6 e5 Nf3 b6 Qe1 d3 Ra4 d2 Rc4 d1N Nfd2 d4 Qe2 e4 Rg1 d3 Bg2 a4 Nf1 e3 Qf3 a3 Nfd2 a2 Na3 a1N Nf1 Ra4 Bd2 Nf2 Ba5 Rh5 Nc2 Rb4 Nd4 Na6 Rc3 Nc7 Ra3 Na8 Ne2 d2 Bh1 Nd3 Qg2 Be7 Qh3 Bd6 Bd5 Bc7 Bf7 Bd6 Kg2 g3 Kf3 g2 Kg4 Bc7 Nfg3 Bb8 Rc1 g1Q Rc4 Qd1 Rd4 Ke7 Re4+ Kd6 Rc4 Ba6 f6 Bc8+ f5 Ke5 Rf4 Rh6 Rc4 Rg6 Kh5 g4 Kh4 Bd6 Be6 Rg5 f7 Nf6 f8B Nh5 f6 Rf5 f7 Bc7 Be7 Bb8 f8N Bd6 Nh7 Bc7 Ne4 g3 Bf7 g2 N4g3 g1R Nf6 Bd8 Ng8 Rgf1 Nd4 Kf4 Nde2+ Kf3 Nh6 Bc7 Bd6 Qb3 Rg4 Rb1 Be7 Bf4 Bd6 Qd1 Bb8 Re5 Ngf5+ Bg3+ Kg5 Rd5 Qh4 Be1 Qh3+ Kf2 Kh4 Re5 Nfg3 Kf3 Bg8 Rf5 Bf7
N2Q2k1/1n4pr/1Np2rP1/4PP1b/Bp1bN1rn/2B3RK/2P1B1R1/q4n1n b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 e5 dxe5 f5 exf5 Bc5 g5 Bf8 Qg4 hxg4 h4 Kf7 f4 d5 Kf2 b5 Kg2 b3 a4 d4 a5 b4 h5 b2 a6 g3 a7 d3 f6 d2 h6 d1N f5 Qd4 h7 Bd7 Bd2 Nc6 Kh3 g2 Na3 b1N Rh2 Nge7 Be2 Na5 Nb5 Be8 Nf3 g1R Bc3 Nd2 Rg2 Ng6 Ra3 Nf1 Nd2 Nh4 Ne4 Bc5 Rb3 Rd8 a8B Rd6 Bc6 Nb7 Bd7 Kf8 f7 Rf6 Bc6 Qf2 Ra3 Qe1 Bd7 Bd4 Rb3 Ke7 f8N Bh5 Bc6 Kf7 Nd7 Na5 Nb6 Nb7 g6+ Kf8 Rf2 Rg5 Rg2 Rg4 Bd5 c6 Nc7 Ng3 Nca8 Nh1 Ra3 Ne3 Bb3 Qa1 Ba4 Rg8 h8Q Nf1 Qh6 Rh8 Qd2 Kg8 Qg5 Rf8 Qd8 Rh7 Bd2 Nc5 Rag3 Nb7 Qf6 Rf7 Bc3 Rf8 Qe7 Rf6 Qd8+
2q1N3/n1rpRpr1/1QRbkN1K/N1rb4/3B4/nPPP4/pn1r3P/1BR5 b - - 0 1 illegal: No possible last move
4kr2/PBbRpnrn/R1P4b/pP1p1PN1/1N3n1B/1bK4N/4q1Q1/3Rn3 b - - 0 1 illegal: No proof kernel
k4rN1/5b1p/q1P4N/b2N2Pp/qR1BnnR1/2P1p3/1b2PRQ1/B3Kbr1 b - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 b4 h4 g6 h5 Bg7 Bh3 Bf8 g5 gxh5 Bg4 b3 axb3 f5 b4 fxg4 b5 Ba6 Na3 Bb7 Nb1 Bc8 f4 a5 b4 e5 c6 d5 c3 e4 b6 g3 b7 e3 b5 g2 b6 a4 f5 d4 f6 a3 Qc2 d3 Bb2 a2 Qb3 d2+ Kd1 Na6 b8R Bb4 b7 Ne7 Rh2 Ng6 Nh3 Nf4 Na3 Qd3 f7+ Kd8 f8B Kc7 Qd5 Ba5 Bc5 Rf8 Bd4 Nc5 Nc2 Qa6 Nb4 Ne4 Nf2 Bh3 Ng4 Ra7 Rb1 a1B Nh6 Ra8 Rd8 Ra7 b8N g1Q+ Kc2 Rb7 Nd7 Qg4 Kd1 Bf1 Nf6 Qh4 Rd6 Kb8 Nfg8 Ka8 Rf6 Ra7 Rg2 Raf7 Rg4 Rb7 Kc2 d1B+ Kc1 Ba4 Rf7 Bb5 Kd1 Bc4 Rf6 Ne6 Rf2 Nf4 Ke1 Rb5 Qf5 Bf7 Nd5 Rb4 Bc1 Ra4 Rb4 Bb2 Qf6 Ra1 Qd6 Ng6 Qg3 Nf4 Qg2 Qh3 Rh4 Qd7 Rg4 Qda7 Be5 Qd4 Bg7 Qdc4 Be5 Qb3 Bd4 Qa4 Rb3 Ba3 Kd1 Rb1 Kc2 Ra1 Bb2 Rd1 Ba1 Bb2 Qh1 Bg2 Qh3 Qa3 Rb4 Rg1 Qf3 Bf1 Kd1 Qa2 Ke1 Qa4 Qg2
1k3N1b/2P2r1N/PqPN2bp/1b3BR1/4n1P1/K2bBp2/4p1qn/1BQ3Rr b - - 0 1 illegal: No possible last move
1bR3R1/NP2B3/Kp1PprP1/2P1Qq2/2n1Nr2/2r2q2/N3kp2/nBr3Rb b - - 0 1 illegal: No proof kernel
2nB4/pN3qN1/1B3n1N/r3k2p/1K2Pp1b/3R2rP/P3Pr1q/rRb2Q1B b - - 0 1 legal: proof: f4 f5 g4 c5 b4 b6 bxc5 Bb7 d3 Be4 dxe4 fxg4 f5 e6 Qd2 e5 Qf4 exf4 Kd2 Ke7 Kc3 Kf6 c6 g5 h3 d5 c7 b5 c8N b4+ Kb3 d4 c4 d3 c5 g3 c6 g4 c7 d2 Bg2 d1R Bf1 g2 Nd2 g3 Ngf3 g1B Ba3 g2 Nc4 Be3 N4d6 g1Q Nh2 Qe7 Nb7 Nc6 Bg2 Ke5 f6 Bc1 f7 Nf6 Rb1 Rf1 Ncd6 Rf2 c8Q h5 Ka4 b3 Nf5 b2 Bc5 Rb8 Bb6 Rg8 Ng7 Qc7 Qd7 Ne7 Qd1 Nc8 Qf1 Be7 f8B Bd8 Bf3 Qf7 Be7 Qg3 Kb4 Qg2 Ne6 Rg3 Ng7 Qg1 Nc5 Rb7 Bg2 Rd7 Nb7 Rd5 Bf3 Ra5 Bg2 Be3 Rd1 Bc1 Rd3 Bc7 Bd8 b1R+ Kc3 Ra1 Kb4 Ra6 Ne8 Ra5 Ng4+ Ke6 Nh6 Ke5 Ng7 Qh2 Rg1 Bd6+ Kc3 Be7 Bh1 Nd5+ Kb3 Bg5 Kc4 Nf6+ Kb4 Bh4 Qg2 Bb2 Rb1 Bc1 Qf1
n1q1qQ2/1BrR4/b3p1n1/bR1nP3/NR3N2/K2bpp1P/B2P1PB1/3q1k2 b - - 0 2 legal: proof: e4 a5 b4 h5 g4 hxg4 Bb2 d5 Bd4 b5 Be3 d4 c3 dxe3 bxa5 b4 c4 b3 Bh3 Ra6 Bg2 Rb6 Bf1 Rb5 cxb5 Qd3 Ne2 Qd4 Ng1 Qd8 a4 Kd7 b6 Ke6 e5 Kd5 a6 Ke4 a5 f5 a7 c5 h3 g5 a6 f4 b7 c4 a8B b2 a7 c3 Ra2 f3 Ba6 c2 Ra1 c1Q Bf1 e6 Ra4+ Bb4 Ne2 Kd3 Rg1 g3 Na3 b1B Ra5 g4 Nc4 g2 Nb6 g3 Rb5 Nd7 b8R Qe8 Bc6 Ngf6 a8B Rh7 Na4 Nb6 Bab7 Na8 Bd5 Rc7 Ba2 Ba5 Rb4 Qcc6 Qc1 Nd5 Kd1 Qcd7 Qc5 Qc6 Rh1 g1Q Kc1 g2 Kb2 Qa6 Qf8 Qc4 Bc6 Ba6 R8b5 Bc2 Rh2 Qh1 Ka3 g1N Bg2 Bb1 Ng3 Ne2 Bb7 Nef4 Nh5 Qd1 Bh1 Ke2 Rg2 Ng6 Nf4+ Kf1 Rg4 Qcc6 Rh4 Qc8 Rh7 Q6e8 Rd7 Bd3 Bg2+
3NK1n1/3PpPrn/2RB1N1b/2qBP3/2pr2Q1/1R1k3P/1nrNp2q/B3q3 b - - 0 1 illegal: No proof kernel
2r3nQ/PN1Np2K/b4r1p/1n2Rp2/r2n3B/PB1rPP2/R7/q2NRr1k b - - 0 2 legal: proof: h4 b5 d4 g5 b4 gxh4 c3 a5 Qd3 c5 Qd1 cxd4 Qd3 Bh6 bxa5 b4 Qd2 b3 Qd1 Bf4 Qd2 Bd6 Qd1 Bb4 cxb4 Ra7 Qc2 Ra6 Qd1 Ra8 Kd2 d5 Kd3 Kd7 g4 Ke6 f3 Ke5 a6 h6 b5 b2 a3 f6 b6 h3 g5 h2 a7 Nc6 Nd2 Kf4 b7 Kg3 b8N b1R g6 Rb4 g7 Ra4 Ra2 Ba6+ Nc4 Qa5 e3 Qe1 Nd7 Rf8 Bd2 Rc8 Be2 Kg2 Nh3 Qf1 Qb3 Qa1 Re1 h1R Qb8 Rf1 Bd1 Kh1 Bb3 Rh7 Bb4 Rh8 Bd6 Rh7 Bg3 Rh8 Kd2 d3 Bh4 Nd4 Nd6 Rf8 Nb7 Rf7 Rb2 Rf8 Kc3 d2 Qd8 d1N+ Kd2 Be2 Ra2 Nc3 Qc8 Ba6 Nf2+ Kg1 Nd1 Ncb5 Kd3 Kh1 Bg3 Nf5 Bh4 d4 Ke4 d3+ Bc4 Nfd4 Bb3 d2 Qe8 Nc2+ Kf5 Ncd4+ Kg6 f5 Qa8 Nf6 g8R Rf7 Rb8 Ng8 Rc8 Rf6+ Kg7 Kg1 Rc5 Kh1 Nb2 d1R Re5 Rd3 Nd1 Rc6 Qf8 Rc8 Qf6 Rh7+ Kg6 Rf7 Qh8 Rf6+ Kh7
1B2R1N1/1KR3Qn/8/3nn2b/rp2Nnpk/P3PrPn/pP3B2/1q2qBR1 b - - 0 2 illegal: No possible last move, all moves rejected
2q5/BB3q2/r1N1R3/np1R4/Q1r1pn1b/Ppkn1P1N/2n1PPn1/1R2N2K b - - 0 1 legal: proof: d4 f5 b4 a5 d5 axb4 d6 f4 Nh3 f3 gxf3 cxd6 Ng1 d5 Bf4 d4 Bd2 Ra6 Bc1 Ra8 h3 g5 Kd2 b6 Bb2 g4 Bc1 g3 Nc3 Bb7 Nb1 Bd5 Ke1 Be6 Qd3 Kf7 Qd1 Bg4 hxg4 Ke8 c4 Kf7 a3 Kf6 g5+ Ke5 c5 d5 g6 h5 g7 h4 c6 d3 c7 Kd4 c8R e5 Rh2 b5 Rh3 e4 Rh1 b3 Bd2 h3 Bg5 h2 Be7 g2 Rc6 Nh6 g8N Nf5 Ra6 Qc8 Bb4 Nc6 Ba5 Nh4 Nc3 Be7 Bd8 Na5 Rc6 Ra6 Nh3 g1N Bg2 d2+ Kf1 Bf6 Qe1 d1N Rb1 Nb2 Na2 Nd3 Re6 Kc4 Bb6 d4 Nc1 Rh5 Nh6 Rc5 Ba7 Bg5 Qd1 Kc3 Ng8 Rc4 Ne7 Bf6 Nc6 Bd8 Ng5 Nh3 Rg1 Nhf4 Nh3 h1Q Qe1+ Kc2 Qb4 Qh2 Qa4 Kc3 Rh1 Qg3 Kg1 Qg7 Kh2 Qf7 Rd1 Bf6 Bf1 Nhg2 Kh1 Bh4 Rd2 Nb4 Nd3 Nc2 Ne1 d3 Rdd1 d2 Ng1 Nge3 Bh3 Neg2 Bf5 Qa8 Nh3 Qc8 Rdc1 d1N Bg4 Nde3 Rd1 Nb4 Rd5 Nec2 Red6 Qh8 Bc8 Nbd3 Bb7 Qc8 Re6
3b2Rk/2pp1nq1/5P1P/1qnP3q/2NB1p1B/qNP1Rq2/2KQ3N/1R3rr1 b - - 0 2 illegal: No possible last move, all moves rejected
2N1q3/QB5P/r3kr1P/4q1P1/3p1br1/2b4p/1B1nRpRP/1b1KRbNN b - - 0 1 illegal: Other
1nq2R2/1bnq3r/1B1N1P1p/P1Q1qPnq/3N1pRN/1kbK1P1p/8/1B2R3 b - - 0 1 illegal: No proof kernel
2q2b2/Qbq2rPN/2r3RK/4pNBR/kn2P2q/2P3r1/2RpP1p1/qB1B4 b - - 0 1 illegal: No proof kernel
4K3/1N2Q1q1/P1B2rPP/2pq1pq1/p1PN2B1/1rrn1bR1/1Br1R3/1kn2N2 b - - 0 1 illegal: No proof kernel
3RBrr1/1P2p3/2Knpb2/1BBNk1rP/1p1q1Q2/PPb5/RrNqb3/6N1 b - - 0 1 illegal: No proof kernel
3r1nr1/2r3qP/1R2pp1p/1rN2R2/1BB3R1/NK4QN/n2PkPrP/3r2b1 b - - 0 2 legal: proof: c4 d5 b4 dxc4 b5 e6 e3 Bc5 b6 Bd4 Bb2 axb6 Ba3 b5 Bc1 b4 exd4 c3 g4 b6 g5 Kd7 Qa4+ Ke7 Qd1 Ke8 Ne2 h6 Ng1 Ba6 Ba3 Bc4 Bc1 Bd3 Nf3 Be4 Ng1 Bh7 g6 Ne7 gxh7 Ng8 a4 Kd7 d5 Kd6 a5 Ke5 d6 Kd4 a6 c5 a7 g5 d7 b3 Bd3 b5 Qf3 g4 Kd1 g3 Bf5 c4 Bd3 c2+ Ke2 f6 Ra4 g2 Ba3 c1R Be7 b4 Bf8 c3 Ra1 c2 Bf5 b2 Ra4 Na6 Qh3 Qc7 d8N Qg7 Qg3 Ne7 Nh3 Rg1 Ra1 c1R Bg4 b3 Ra3 Rc7 Ra5 Nb4 Nb7 Rd8 a8R Rg8 Na3 b1R Nc5 b2 R8a6 Ng6 Rb6 Na2 Bd6 Rgd1 Rg1 Nf8 Bf5 Rbc1 Bd3 b1R Bc4 Rc3 Nb3+ Ke4 Bb4 Rf3 Rg5 Rf4 Rf5 Rg4 Nc5+ Kd4 Ba5 Rb5 Bb4 Ra1 Rb1 g1B Kd1 Rg5 Kc2 Rg6 Rb3 Rd1 Qh4+ Rg4 Qg5 Rg2 Rg3 Rb7 Kb3 Rc7 Ne4 Rcc8 Rg4 Rc7 Bd5 Kd3 Nc5+ Ke2 Qf4 Re1 Qg3 Rd1 Bc4+
N1N2Kn1/2P3p1/3rBnP1/r1N2bbR/1bB3p1/r1p1B3/kPPQ2R1/2nn4 b - - 1 2 illegal: No proof kernel
NbR1Q1b1/1B1P1BKB/Pp6/bR1rp3/N2p1n1n/1k1rPr2/3P3n/2rN4 b - - 1 2 legal: proof: c4 d5 b4 g5 f4 a5 fxg5 axb4 Bb2 d4 Bc1 Qd5 cxd5 Kd8 Qc2 Kd7 Qd1 Ke8 g4 h6 g6 b3 g5 Be6 g7 Bc8 g6 Ra6 Ba3 Kd8 Bd6 Ra8 Bf4 Ke8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 a4 Kc5 h4 Kc4 a5 c5 d6 f5 h5 b6 a6 b2 h6 f4+ Kf3 g4+ Ke4 f3 Ke5 g3 h7 f2 Bg2 f1N e3 Nh6 g8B+ Be6 g7 Nf5 d7 Nh4 Ra3 Nh2 Nc3 b1R Bf3 g2 Ra5 Rb3 Na4 Rd3 Nh3 g1B Bb7 Bd5 Qh5 Kb3 Qe8 c4 Bf7 c3 g8B c2 Rc5 c1R Nf2 Nc6+ Kf4 e6 Kg5 Ne5 Kf6 Neg6 Nd1 Nf4 Rc8 Bb4 Kg7 Bf2 Rg1 Ba5 Rg5 Bc4 Rgc5 Bg3 Bg6 Ra1 B8f7 Rc1 Bf5 Rf8 h8N Rb8 Ng6 Rh8 Re5 Rh5 Rec5 Ra8 Nf8 Rb8 Bh7 Rd5 R8c6 Rc8 Ndc3 Rf1 Nd1 Rf3 Rc7 Nfg2 R7c6 Bb8 Rc7 e5 Ne6 Nf4 R7c6 Rd6 Nc7 Be6 Na8 Rd5 Rc4 Rc7 R6c5 Rc6 Bh5 Bg8 Bf7 Re6 Rc8 Rc6 Rc5 Ka2 Rb5 Rc1 Rbc5 Kb3 Rb5+
1Kb2qBr/2rP1b1B/p7/r6r/1B1p1b2/Pk2qN2/pP1P1b1N/N2QR1R1 b - - 0 1 illegal: No proof kernel forced: bxDB
BnbRq1n1/3BkPRp/1N6/2qpQP2/1B1P2bN/1rRp4/r3P1pb/4K3 b - - 0 1 illegal: No proof kernel
2n5/2PK2p1/p3n1N1/qBBk2q1/b4rN1/r1bPBP1p/QP2p1NR/q1R5 b - - 0 1 illegal: No proof kernel
Br2B3/QP4n1/R1N1b2P/pKbp1P2/N2Np1k1/q1r1n2R/B2qPp2/2q5 b - - 0 1 illegal: No proof kernel
R2Bb3/qP4p1/nPpb1N1N/4rn1P/n1K2B2/2P1Np2/Rr1q1p2/2BQ2k1 b - - 0 1 illegal: No proof kernel
r3N3/PKBNkQ1q/1pp2rn1/1Pb2bb1/p3P2q/2PR4/2R2n1p/2BR2N1 b - - 0 1 illegal: No proof kernel
7N/P1Bpn1B1/n3Q1P1/P2R1b1R/1NK2pP1/2p1p1bB/r1R3qb/q5kr b - - 0 1 illegal: No proof kernel
4nRK1/p1k1NrN1/4q3/p3P1P1/BPbBp1qb/3P3r/1rBp2Q1/1nR2R2 b - - 0 1 illegal: No proof kernel
3bK1b1/1nq2pR1/Nk2Q2N/2p1R1Pr/pr5P/7B/1PPpR3/BnBn3n b - - 0 1 illegal: Other
3B4/K1p1PRn1/N1Br2Bp/2Pn2p1/1pN1qNb1/2P1Rr1Q/6bP/n3kn2 b - - 0 1 legal: proof: f4 f5 b4 a5 g4 e5 gxf5 Bc5 c3 Bd4 c4 Bc3 dxc3 exf4 Qd3 axb4 Qd6 Ne7 Qd1 Ng8 Kf2 Kf7 a4 Kf6 e4 Ke5 c5 g5 a5 b5 a6 d5 f6 h6 a7 f3 Ke3 b3 f7 f2 f8N b2 Qd2 b4 Na3 b1N Qd3 Nc6 Nh3 Nce7 Nf4 Qe8 Ra2 Bf5 Re2 Rd8 a8B Bg4 Bc6 Nf6 Bg2 Rd6 Rf1 Nh5 Nc4+ Kf6 Kd4 Ng7 Bf3 Na3 Be3 Bh3 Bg4 Bg2 Bh5 Qa8 Bg6 Qb7 Rfe1 f1N Rf2 Rh7 Rf3 Rh8 Bg1 Rh7 Qe3 Nc2+ Kd3 d4 Rf2 Na1 Qh3 Qc8 Re3 Qb7 Rff3 Nd5 e5+ Ke7 e6 Kf6 Ke4 d3 Kd4 d2 Nd7+ Ke7 Bf2 d1B Nb8 Kf6 Na6 Be2 Nd2 Bd1 Kc4 Rh8 Bg3 Rf8 Rf2 Qa8 Kb5 Bg4 Nc4 Qe8 Nb8 Rf7 Ka6 Rf8 Ka7 Rf7 Bh5 Kf5 Na6 Rf6 Rd3 Ke4 Bg6+ Rf5 Rff3 Qf8 Bf2 Qe7 Bd4 Qe8 Rf2 Qe7 Bf6 Qe8 Bh5 Qg6 Bd8 Qh7 Ng6 Rf3 Nf4 Qf5 e7 Qg6 Na3 Qe6 Bg6+ Qf5 Rdd2 Ke3 Rd4 Qc2 Rc4 Qe2 Re4+ Kd2 Nc4+ Ke1 Re6 Rd3 Rf3 Qe4 Rf6 Re3 Rg3 Rf3 Rf7 Rf2 Rd3 Rf3 Re3+
1N3K1n/1r1bp1n1/2Bp1P1p/kB6/q2Pr2N/3pq2P/rPB1RR2/2R1nQ2 b - - 1 2 illegal: No extended proof kernel
8/pKR1n1p1/1N1B1bnb/4N1PP/n1P3p1/q1RQpB1k/1Pn1R1B1/1b3r2 b - - 0 1 illegal: No proof kernel
1N1b2K1/1B1pP1Rp/R4B1P/P2N1r2/q1k1p1qQ/4p2r/bP2Nq2/qnR5 b - - 0 1 illegal: No proof kernel
b1K5/1N2Q1bR/1kp5/1qp5/PpP1Nb2/rPnBB3/b1N2Pqp/4Rn1R b - - 1 2 illegal: No proof kernel
2bnBR1K/pp4nb/bbr1RRN1/Bp4bP/1Pk1P2N/QNP1p3/1r6/8 b - - 0 1 illegal: No proof kernel
Bnn1R1n1/1kBp1b1p/2p3b1/Q1PR1N2/6N1/pB3R1P/rrpP1P1K/1q6 b - - 0 1 illegal: No possible last move, all moves rejected
KN3nR1/2p1Qb2/5kp1/1qP1nrR1/1P1pr2B/N2pP3/1P1pbN2/1nB2B2 b - - 0 1 illegal: Other
8/rPpRk2N/r4N1b/P4B1p/R2P1B1P/Kbb3pn/Np3p2/RQ1q3r b - - 0 1 illegal: No proof kernel
B3nQ1B/p7/KRP1Bb2/2pN1qPn/3pkp2/N2R3n/1q1P1P1p/bN1r4 b - - 1 2 illegal: No proof kernel
1k1nr3/pP2r2b/1p1n3P/P1RB1NB1/4p1pB/Np1Rb1p1/3QN1P1/1K2b3 b - - 0 2 illegal: No proof kernel
bN6/r3qnn1/3Q1RR1/1p2b3/p1B1P2B/PPP3qN/K1nr1bqB/1N4rk b - - 0 1 legal: proof: f4 e5 g4 exf4 d4 h5 gxh5 c5 Bd2 cxd4 Be3 Ba3 Bc1 Bf8 Kd2 Ke7 e4 Kd6 h4 Ke5 h6 g5 b3 d5 a3 a5 h5 b5 h7 f5 h6 f3 c3 Kf4 Kc2+ Kg3 Kb2 f4 Bc4 Kg2 Ne2 f2 Bd3 f1R Rh4 f3 Rh1 a4 Rh4 g4 Rh5 f2 Be3 g3 Ka2 Nd7 Qd2 Ndf6 Re5 Bd6 Qe1 Bb7 Nd2 Qe7 Qb1 Rg1 Nf3 f1Q Ne1+ Kh1 Qd1 g2 Bb1 d3 Rf5 d4 Nf3 d2 Bg5 d3 Ned4 Be5 Nc6 Nh5 Bh4 Ng7 Nb8 Ra7 Rf6 Ba8 Bc2 Qf2 Rb1 Qg3 Rg6 Nf6 Rb2 Re8 h8N Rd8 h7 Nfe8 Nf7 Nd6 N7g5 Nf7 h8B Rdd7 Nh3 Rd5 Qf1 d1N Nd2 Ne3 Nb1 d2 Bd3 d1Q Rf2 Nc2 Bc4 Rd2 Qd3 Qdf3 Qd6 Rf1 Qa6 g1B Qd6 Qfg2 Rf4 Bf2 Rff6 Nf5 Bg7 Rg1 Bh6 Ng7 Bf4 Q3f3 Bh2 Qgg3 Be2 Qfg2 Bc4
1bNR1q2/qQbNk1p1/1r1B1nPr/1p1Brb2/1B1P3R/2r1P1KN/1Pr5/6n1 b - - 0 1 illegal: No possible last move
1q5N/3qb1bB/1r3p1b/q2PkbB1/1Rnn1N1K/1p1B1P2/PP1R2b1/1Q1rR3 b - - 0 1 illegal: No proof kernel
4Rr1r/2p1qBK1/1NnB1R2/3pq1R1/1bPP2NQ/PP3Nb1/1nbnr2n/4k3 b - - 0 1 illegal: No proof kernel
R5K1/2Bb1Bn1/bPpp1NB1/k2P1rrn/1b2bqN1/2P1q2Q/PR5R/2r4n b - - 0 1 illegal: No proof kernel
1K1k4/5r1n/2B2Bbp/r1pPr2n/3R1qqP/2PBbrP1/1bR5/1NR1Nn1Q b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 a5 Qh5 axb4 Qg4 Ra3 Qd1 Ra8 Ke2 b5 Ke3 f5 Kf4 c5 Ke5 f4 a4 h6 d4 e3 h4 f3 g3 b3 g6 f2 g7 b2 d5 e2 a5 e1B a6 b4 a7 b3 Bg2 f1N Na3 b1Q Qd4 b2 Qc3 Qd7 Bh3 Nf6 g8R Nh5 Ra2 Bf2 Be6 Rh7 Bf5 Be3 Nh3 Kd8 Bg6 Qg4 Nf2 Bf5 Rh2 Rf7 Nd3 e6 Bd2 Qc1 Ra1 b1R Ne1 Rb3 Nb1 Bd3 Bh7 Bg6 Qc4 Ra3 Bc3 Rb3 Rg7 Be7 Qe4 Bf6+ Kd6 e5 Qg2 e4 Qh1 Nd7 Kc6 Ra3 Kb7 Ra5 Rd2 Rc8 a8B Nf8+ Kb6 Bfd4 Bc6 Rf3 Kb7 Rc7+ Kb8 Rcf7 Rd1 Qd2 Ra2 Qf2 Rc1 Qd2 Bb4 Bb2 Bc3 Qd4 Rg8 Qf6 Be5 Qff4 c3 Bg1 Ng2 e3 Ne1 e2 Rg7 Be3 Rg8 Ba3 Rac2 Bb2 Rg7 Rf6 Rb7 Rf5 Rb4 Rf7 Ng2 e1R Rd4 Be4 Bg6 Nh7 Bf5 Re2 Ne1 Bd3 Bc8 Be4 Ba6 Bg6 Bd3 Bf2 Bd6 Re5 Bf8 Bg1 Bg7 Be3 Bf6+
1B1r4/2P2r2/K1k1rR2/p1p1qbP1/Pq1nB2r/Q1n1bN2/2Pq1Nn1/2BNR3 b - - 0 1 illegal: No proof kernel
nb5R/qRrkP2K/1pr3n1/pP6/NRQ4b/BN1bqB2/Pn4Pq/b4B2 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 Rh6 dxc4 Rh4 Nh6 Rh1 Ng8 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 c5 b4 f3 e4 f2 d4 f4 g6 h4 b5 b6 g7 f3 d5 h3 d6 h2 Nc3 Na6 Bd3 f1Q Nh3 f2 Ng1 Rh6 Nce2 c3 Nd4 c2 Bd2 c1B Nb3 c4 Kf4 c3 e5 c2 e6 Qd7 Kg5 Bb2 Rc1 Be7+ Kf5 Qe2 Be1 f1N Nd4 Ra7 Rb1 c1B Qc2 Qe3 Nb3 Ba1 Ne2 Nd2 Nc3 Nc7 Na4 Na8 Qc4 Bh4 Bf1 Rc7 Rb2 Qe7 d7+ Kd8 Bg3 Bb7 Bd6 Be4+ Ke5 Qf7 Ba3 Ne7 g8B Rf6 Bh7 Bd3+ Be4 Rh6 Qc2 Qh7 Qc4 Ng6+ Kf5 Qe7 Nbc5 Qh7 Rb4 Bcb2 Nb3 Be5 Nbc5 Ke7 d8R Beg3 Nb3 Bf4 Qc3 Nc4 Rb8 Nb2 Rb7 Ke8 Rg1 h1Q Qc4 Qh2 Rh1 Qg8 e7 Kd7 Ra7 Qb8 Rb7 Be1 Kf6 Bh4+ Kg7 Qa7 Kg8 Rh8+ Kg7 Rc8 Bf3 Bfg3 Kh7 Bd6 Rb8 Rc6 Rb7+ R8c7 Qc5 Bdg3 Qc4 Qh3 Nc1 Bf6+ Kg8 Bg5 Rb8 Rb7 Nb3 Bc7 Rc8 Bb8 Rh2 Qg3 Rh8 Bh4 Kg7 Qh2 Kh7 Kd6 Qc1 Rd7 Rc7 Ke6 Rb7 Rdc7 Qc3 Kd7 Qc4
4k2B/R1PR1Br1/2bp1r2/Q7/2Knrbn1/2BP2pr/1P3qPq/2N1NRrr b - - 0 1 illegal: No proof kernel
4n3/2pn1R1n/K4N2/2Pr1Prp/PkNbB1Rr/2nr2R1/r1N1b2P/q1Q1B3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g3 f5 g4 fxg4 Kd2 Ke7 Kd3 g5 Kc4 d5+ Kb5 g3 c4 d4 e4 b3 f4 g4 f5 d3 e6 Kd6 a3 d2 e7 g2 e8R g3 Nh3 g1N Qg4 d1R Qe2 g2 Qe3 b2 Qf3 Qf6 Ra2 Rd5+ Kb4 b5 Ng5 Nh3 Ne6 g1R Qc3 Bg7 Bd3 Ng5 Nd4 Ba6 Ka5 Kc5 e5 b4 e6 b3 e7 Nd7 Nd2 b1N Be4 b2 Rf8 Qe5 e8N Ngf6 Ra1 Rg3 Rg1 h5 Bh1 Ngh7 Rf7 Rg8 Ra2 Rh3 Be4 Rh4 Rg4 Bh8 Qe3 Rg5 Ra1 Nc3 Qe1 b1R Nc2 Ne2 Bb2 Bg7 Bc3 Rb3 Qh1 Qd4 Rag1 Ra7 R1g2 Qg1 R2g3 Qa1 Qc1 Ra8 Nf1 Bh8 Be1 Re3 Nd2 Nc3 Bh1 Ra7 Nd6 Ne8 N6e4+ Kc6+ c5 Bd4 Nf6 Be2+ Kb4 Rd3 Nc4 Rb7+ Ka5 Rb2 Ka6 Ra2 Ka7 Kb5 Be4 Ka4 Kb7 Kb3 Ka6 Ka4 N2e3 Kb3 a4 Kb4 Nc2+
Bk2BK2/4pb2/2rq1R2/np1r2Rb/r1r5/n1PN4/bPPBP3/1nQNb2N b - - 0 1 illegal: No proof kernel
BkqbR1nb/1R5b/3Rp1Pp/8/4K2n/qb4NP/nrP1P2B/Q2NB1nr b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 Ra5 gxf4 Ra3 Bb7 Ra1 Bc8 Kf2 f5 Kf3 a5 g4 d5 b4 Kd7 b6 a4 b5 a3 b7 Kc7 g5 a2 Na3 d3 Bb2 d2 Bd4 Nd7 b8R Ne5+ Kg2 f3+ Kf2 f4 Rb6 Rb8 Re6 Ng6 Bc3 d4 Rd6 d3 Qc1 d1N+ Ke1 f2+ Kd2 f3 Re6 Nh4 Re4 Be6 Bb2 Nc3 Ke3 d2 Bh3 f1B Nc4 d1Q Rb1 a1B Nd2 f2 Bg2 Na2 Nh3 Qc8 Bc3 Bb3 b6+ Kb7 Bf3 Bg2 Nf1 Qd6 Ng3 Qa3 Be1 f1N+ Kd3 Bf6 Nf2 Nd2 Nd1 B8g7 Rf1 Ka8 b7+ Ka7 Rd4 e6 Rd6 Bd8 Bc6 Ndf3 Ke4 Bh3 Qb2 Bg4 Qa1 Ng1 Rf8 Bh5 Re8 Bg6+ Ke3 h6 h3 Bh7 g6 Ra8 Kf4 Kb8 Ke4 Ra5 Nf1 Rf5 Bd5 Rf2 Ng3 Rh2 Ke3 Bb2 Bg2 Rh1 Ke4 Ne7 Bf3 Rf8 Bg2 Ng8 Bf3 Bh8 Bg2 Ka7 b8B+ Ka8 Bf3 Rf5 Bg2 Rb5 Nf5 Nf6+ Kd4+ Bd5 Rd7 Be7 Bh2 Bd8 Rd6 Kb8 Ng3 Rb7 Rb3 Ng8+ Ke3 Bc4 Bc6 Rb6 Ba8 Rb5 Ke4 Rb4 Rf3 Rb2 Rf7 Bb3 Rb7+
1q3qB1/B3bN2/6pr/1pnq2PR/p1n1b2R/PR1rnP2/2NP2k1/1K1Qb1B1 b - - 0 1 illegal: No proof kernel
1BRrNk1B/5bpp/8/1n2QBnN/n1q2Pn1/2p2nKP/1rP1rN1P/2b1R3 b - - 0 1 illegal: Other
B6R/p2R1br1/2prbR2/PQbrNk1P/bnK3p1/2n5/1PP1Nb1B/4B1q1 b - - 0 1 illegal: No proof kernel
N1Rk1r2/r2nNpnB/1p1nP3/2NP2q1/4R1Qp/1P1n1PB1/2r5/bKR3nb b - - 0 1 illegal: No proof kernel
2KR2b1/p1p3b1/1qbpnb2/RNn1QP2/P3rR2/kr2N2P/2PBb3/1B2r1N1 b - - 0 1 illegal: No proof kernel
nK4N1/1PBr1Qn1/P1BN2b1/1bp2r2/RN3p1R/1q1bkPp1/B4bP1/1n2r3 b - - 0 1 illegal: No proof kernel
bB2r1nN/n1k1qp2/1rpqPRR1/4p3/3bBP2/1Pbb3R/N2QP3/B1Kb4 b - - 0 1 illegal: No possible last move, all moves rejected
K2R3B/BB2brR1/1q2b1p1/4p1rr/n2RP1P1/1Pp1rP1k/Q3n3/b1qN2N1 b - - 0 1 illegal: No possible last move
R1r4k/prq2BBr/P2pN1Pq/4QN1n/Pn1P1Rb1/b1p2R2/4B3/3nKn2 b - - 0 1 illegal: No possible last move, all moves rejected
1BrRb1q1/K2N2bR/3Pn2p/QN2rBP1/2B1q2n/1Rp1p2P/k3P3/1n1q2q1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f3 axb4 f4 gxf4 Kf2 Kd7 a4 Kd6 g4 Kc5 d4+ Kc4 g5 f5 a5 c5 d6 b5 a6 e5 d7 f3 Ke3 f4+ Ke4 f2 h3 b3 d5 b4 d6 f3 a7 b2 Ra2 h6 Ra5 b3 Be3 Nc6 Qe1 Nge7 Bd4 Ng6 Be3 Nd4 Qd2 Nh4 Ra1 Ne6 Bg2 f1Q Nc3 b1N Nb5 f2 Qa5 b2 Nf3 Kb3 Kd5 e4 Kc6 c4 Ne5 c3 Ra2 Qe8 Kb6 Bg7 d8R Qg8 Nd7 Qg1 Bd4 e3 Be4 f1Q Bf5 Bb7 Bc5 Rb8 a8B Rc8 Ka7 Qd1 Bb6 Be4 Bc7 Bc6 Bb8 Rh7 Bb7 Rh8 Ba6 Rh7 Nf8 Be8 Nd7 Rh8 Ra4 Rc5 Rc4 Rd5 Rc7 Re5 Qb6 Ka2 Qa5+ Na3 Rb7 b1Q Rc7 Qe4 Rb7 Qgg2 Rf1 Qg1 Re1 Qda4 Rb1 Qac2 Rb3 Qcd1 Qb6 Nb1 Qa5+ Qa4 Na3 Qc6 Bc4 Qe4 Nb5+ Na3 Rb6 Rh7 Ka6 Bf8 Nc5 Rc7 Rb7 Rc8 Rh7 Bg7 Ka7 Bg6 Qc7 Be8 Nd7 Nb1 Qa5+
K2R3r/1pq4B/1p1r2k1/3N1RNb/1Pr1Qnp1/nPb1P3/qB1n2P1/1B2N2n b - - 0 1 illegal: No proof kernel
8/r3BqPR/1K1nRNN1/1p1N1p1n/Rn1k1pBP/6bb/rP1qQP2/4rr2 b - - 0 1 illegal: No proof kernel
5R1N/4nrr1/pPP3pK/P3R1B1/QN2pNr1/1b3qBB/q3k1Pb/3r1nn1 b - - 0 1 illegal: No proof kernel
3nR1R1/1q2P3/2N1p1p1/1P3B2/qrp1bbN1/qkQ1P1P1/1qR1n1NB/3K1n1r b - - 0 1 illegal: No proof kernel
1B2R1nQ/3p2b1/bpRNPp2/6n1/2qb3K/PP1P1k1B/b2N1n1r/1Nq1r2R b - - 0 1 illegal: No proof kernel
K1b4R/B2N1np1/2Rnr2P/2pr4/R3P2k/bpP2BP1/B1b2qb1/1N1nQ2n b - - 0 1 illegal: No possible last move, all moves rejected
rq3q1b/3pBBrR/pN4pB/2bq4/2b2P1q/P1KP1Q2/2n1qRP1/1Nk2R2 b - - 0 1 illegal: No possible last move, all moves rejected
Q2Rk3/NB2n3/B1R1pqb1/1nrN2B1/1q2Pbp1/p2P2Pn/P4qb1/n1RK4 b - - 0 1 illegal: No possible last move, all moves rejected
2q5/Kp1q1Br1/1B1R1ppq/1RP3P1/1PNn1nkq/2N2PBn/2R3n1/3Q1br1 b - - 0 1 illegal: No possible last move, all moves rejected
1n3rQ1/1r2P1p1/pR2q1P1/rb3nN1/Bbqp3k/1NR3pR/K2P2P1/b2B2B1 b - - 1 2 illegal: No possible last move, all moves rejected
1K3b2/2pR1P1B/rp1n1N1N/1PR1q2B/bQPqn3/k1B1p1N1/4Pr1p/1nb5 b - - 0 3 illegal: No proof kernel
6R1/Q1Knr1n1/pR4BP/P2p4/p2bP3/NRp1NqN1/b2PkB1n/2r1q1q1 b - - 0 1 illegal: No proof kernel
5r2/pP3bQ1/1n1k1pRK/2pB2r1/1qPn2R1/3b1P2/PB2NqNp/R1bq1B2 b - - 2 3 legal: proof: d4 e5 dxe5 b5 c4 g5 h4 gxh4 Qd4 b4 Qc3 bxc3 b4 Ke7 e4 d5 Ke2 c5 Kf3 h5 Kf4 f6 g4 d4 e6 h3 b5 c2 g5 h2 g6 h4 b6 h3 g7 d3 e5 d2 b7 d1Q Bb2 c1Q+ Nd2 Qd4+ Kf5 Nh6+ Kg6 Qcc3 g8Q Nd7 Ndf3 Nf5 Nh4 Rh5 Ne2 Qb4 Rg1 h1B Rg4 h2 Ng2 Nb6 f3 Bh6 Kh7 Rg5 Qg6 Qf2 Qg7+ Kd8 e7+ Kd7 e6+ Kd6 e8R Nd4 e7 Be6 Rb8 Bf7 Rg8 Rf8 e8B Nb3 Ne3 Bg2 Bc6 Nd4 Bd5 Bh3 Rg1 Bhe6 Rg4 Bc8 Ng2 Bf5+ Qg6 Bd3 Rg7 Rf5 Rg8 Bd2 Qg7 Rg5+ Kh6 Be3 Qh8 Bd2 Rg6 Bc1 Qg7
2bN4/1p2Kpbn/p1R1RPpr/4r1PP/BQPq1BkN/n4n2/N2n4/R4b2 b - - 0 1 illegal: No proof kernel
1Nk2nbb/4qnRp/2KR3P/2p2rR1/1BP2N2/1nbn1P1p/5pQP/1r4BB b - - 1 2 illegal: No proof kernel
1RbNK3/7R/QNr3n1/rPp1k3/4B1n1/B1p1qprp/P1P2b1P/1R2r1bN b - - 0 1 illegal: No proof kernel
7B/p2k2NK/1rb2rpP/2RrPpqB/4n1P1/bN1pR3/nb1PNQ2/2r4B b - - 0 1 illegal: No proof kernel
2bN3N/2RNqQK1/2pkpBRP/b1r1p3/P3P2p/b1P4B/b2R2n1/2n1r1n1 b - - 0 1 illegal: No proof kernel
RrB1R3/K1p1Prp1/1p3pbN/n7/1R2N1Pq/3r2r1/QP1b1PnB/1B2k1b1 b - - 1 3 illegal: No proof kernel
3q1q2/4bp1B/n1pRpP1B/p1q2q2/B1PPN3/1N1P1QRr/1KN2rn1/1b5k b - - 0 1 legal: proof: h4 g5 a4 gxh4 a5 d5 e3 d4 exd4 b6 Be2 bxa5 Bf1 a4 f4 Kd7 g4 Kc6 b4 Kd5 c4+ Ke4 g5 h5 b5 h3 b6 a3 b7 h4 g6 c6 g7 a2 f5 h2 f6 h3 Qa4 Nh6 Kd1 Ng4 Kc2 Ne3+ Kb2 Bf5 g8B e6 Qd1 Na6 b8N Be7 Be2 Ng2 Nf3 Rh5 Rf1 h1Q Bh7 h2 Na3 Rh3 Nd7 Bg6 Rf2 Qf1 Nc2 h1Q Nc5+ Kf4 Bd3 Kg3 Ng5 Kh2 Rf5 Qhg1 Nb3 Kh1 Rb5 Qf5 Ne4 Qgf1 Rb7 Qc5 Rd7 Rb8 Qg4 Qff5 Rd6 Rb7 Qf3 Qf8 Kc3 Rb8 Rb1 a1Q+ Rb2 Rb6 Be2 Rb4 Bd1 Qaa5 Ra2 Qad8 Kb2 Rb5 Ra3 Nb4 Nba1 a5 Rd3 Na6+ Nb3 Qde8 Qg4 Qd8 Rg3 Bh5 Qf4 Be2 Qf3 Bd3 Na1 Bb1 d3 Rb4 Bh6 Ra4 Nbd2 Ra3 Ba4 Rc3 Nc2 Rb3+ Kc1 Rb2 Nb3 Ra2 Ne3 Re2 Nc2 Rf2 Kb2
qqkbR3/B7/5pr1/R1pp1B1b/3nPPrb/1p1P4/RNn1P1b1/1K2QB1N b - - 0 1 illegal: Other
2B1qQ2/1B4pp/1rbBnP1P/1k4rN/1pPR4/2b1n1PK/RR1r2p1/1r1qN3 b - - 0 1 illegal: No possible last move, all moves rejected
1R3nbr/p5p1/n1Nbkp2/K2pq1NB/B1N1PP2/Qbr1q1PB/P2R4/2b5 b - - 0 3 illegal: No possible last move
KbkrNR2/1N2P1R1/1N1rB1p1/1pp3P1/1P1b2r1/1Pp3np/2BQ2b1/n4qB1 b - - 0 1 illegal: No proof kernel
R1B3rB/pb1P2p1/P1n3np/1PNN1p1p/k7/rbq2P1Q/6KR/n1bBN3 b - - 0 1 illegal: Other
N6r/nB2P3/2p1nBK1/1ppB2pr/b1RrQ2q/1n1P4/1Ppk2PN/1N2R1b1 b - - 0 1 illegal: Other
2rR2q1/3p1prb/1bnnBB1p/1r1N2p1/1R2R1K1/n1pP2P1/k1Q1N1PP/5B2 b - - 1 3 illegal: No proof kernel
qn4Qq/Rk4NR/4ppR1/Bp5K/qP1r1B1N/p5Pb/PnB3pP/b3r3 b - - 0 1 illegal: No proof kernel
1Bnq1NR1/1kp2K2/rbPp1p2/1rb1p3/1R6/bB1PPRq1/p4P2/2QN1nB1 b - - 3 6 illegal: No possible last move, all moves rejected
b5n1/6p1/Rp1p2pB/p1qP1bN1/1P1q1n1P/NRr5/PBQ1B1b1/2K1Nk1r b - - 2 3 illegal: No extended proof kernel
n1n3R1/3pR1p1/qp1P1BrB/pP1qpb2/N1qN1Q1k/4r3/PK2N1P1/3B3b b - - 1 6 illegal: No possible last move
3RnBr1/1qrR1bbB/pRB1p1Q1/4N2p/P2p4/P2P2KP/1b2k1bp/nN6 b - - 1 3 illegal: No proof kernel
1r1bb3/p2p1p2/p1RPp1qq/P3PQ2/nB1R4/1BB1kP2/2KN1pr1/1RN2n1b b - - 0 1 illegal: Other
3q1k1b/R3PPN1/6p1/p1B3pn/1B2p1RP/3PnQ2/3r2b1/Nq2QRK1 b - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 cxd5 b5 f4 b4 f5 b3 axb3 Qd6 b4 Qd7 b5 Qd8 g5 a5 Be2 Ra6 Bh5+ Kd7 Bf7 Rf6 Bg6 hxg6 gxf6 Ke8 Kf1 c5 h4 e5 b4 g5 f7+ Ke7 b6 g6 b7 e3 b5 c4 d3 e4 d6+ Kf6 b6 Kg7 f6+ Kh6 Qe1 c3 Nf3 e2+ Kg1 c2 Na3 Ne7 Bd2 c1Q Nc2 Qb1 Nfd4 Bh3 Bb4 Bg7 f8Q Nd5 Ne6 Nd7 b8B Bg2 b7 Ne3 Ba7 Qb2 b8R Qe5 Qf7 Rf8 Bac5 Bh8 Ng7 Qee7 Ra8 Kh7 Ra7 Kh6 Qf1 e1Q Rh2 Qb1 Qe1 Kh7 Rh3 Kh6 Rg3 Kh7 Rg4 Kh6 Qb3 Kh7 Qc3 Kg8 Qf1 Rf7 Qce1 Kf8 Qf3 Nb6 Ra3 Nbd5 Na1 Nf4 Ra2 Nh5 Rf2 Qe6 Rf1 Rc7 f7 Qee7 Bb6 Rc2 B6c5 Rd2 dxe7+
4Q3/1PB5/2krb1Pr/qbN2nP1/N1b4n/1qQP1r1r/3r3B/1R1R2RK b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 a4 e5 axb5 e4 h4 Kd7 f4 gxf4 g5 Bb4 g6 Ke8 Bg2 Be7 Bf3 Bg5 hxg5 exf3 Kf1 Kd7 e4 h5 b4 a5 d6 c5 e5 f5 b6 c4 e6+ Kc6 e7 h4 e8Q+ Nd7 b7 h3 b8B f2 Qe5 a4 Qde1 a3 Bb2 a2 Qc3 h2 Kg2 f1R Qf6 f3+ Kg3 f2 Kg2 c3 Qfe5 c2 Q1e3 c1R Qd3 f4 Qef5 f3+ Kg3 Qa5 Bc7 Ne5 d7 Nh6 d8R Rc2 Nc3 Ra6 Ne4 Be6 Rb1 a1Q Nc5 Q1a4 Qf7 Qb3 Qc3 Rh7 Ne2 Nf5+ Kf4 Rb6 Rg1 h1R Rd7 R1h3 Qe8 R7h6 Ba1 Nf7 Kg4 N7d6 b5+ Kd5 Kf4 Nh4 Bb2 Ra6 b6 Kc6 b7 Ndf5 Ba3 Rfc1 Kg4 f1B Bb4 f2 Bh2 Qa1 Ba5 Qaa2 Bac7 Qa5 Qf6 Rb6 Nc3 Bc4 N3a4 f1B Qc3 Bb5 Kf4 Bfc4 Ke4 Ng3+ Ke3 Ngf5+ Kf2 Re1 Bd8 Ree3 Bdc7 Nf3 Kg2 N3h4+ Kh1 Ref3 d3 Rd2 Rh7+ Kd5 Re7 Rd6 Rgd1 Bed7 Ree1 Be6 Qf7 Kc6 Rg1 Rg2 Qf8 Rd2 Qe8+
B2k4/2r1Q3/P1bnb2q/1NKPQ2B/6q1/1R2nR2/NnRPPb2/q1r3q1 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 gxf5 d5 c4 h6 cxd5 Ne7 b4 Ng8 Bb2 axb4 Bd4 Bc5 Be3 Bf8 Bg5 hxg5 Kf2 b5 Ke3 c5 a4 b3 h4 b2 f6 c4 Kd4 g4 a5 g5 h5 b4 e6 c3 h6 b3 e7 c2 a6 c1N h7 g3 Ra3 g4 Ra2 g2 Rh2 g3 Na3 b1B Rh3 b2 Ra1 Qd6 Rh4 Be6 Qe1 Nc6+ Kc4 Nd3 Nh3 g1Q Rh6 g2 Nf2 Na7 Nd1 Nc8 Nb5 Bc2 Ndc3 b1Q Rh3 Ba4 Na2 Nh6 Qh4 Ng4 f7+ Kd7 Rg3 Ne3+ Kd4 Rg8 h8Q Nb2 Qe5 Ra7 Qh7 Bh6 e8B+ Kd8 f8R Rc7 Rff3 Rgg7 Rh3 Rc1 Bc6 Rc7 Ba8 Qf5 Rb1 Qg4+ Qhe4 Qh1 Rh4 g1Q Bg2 Bg5 Rhh3 Bh4 Ra1 Rf1 Rc1 Bf2 Rc2 Rc1 Rhg3 Qf8 Bh3 Qh6 Bg2 Re7 Kc5 Nd6 Bh3 Qgg7 Bf5 Qg4 Bg6 Rg7 Bh5 Re7 Na3 Bc6 Nb5 Ra7 Qh7 Rc7 Qe7+ Kc8 Rc3 Ned1+ Qd4 Rb1 Ra3 Qgh2 Rfd3 Ne3 Rab3 Qc1+ Rdc3 Qhg1 Rc2 Qcf1 Qh7 Kd8 Qe5 Ra1 Rf3 Qb1 Nb4 Qa2 Qf7 Rc1 Qh7 Qb1 Na2 Qa1 Qe7+
Knb1Nr2/R1qqP1B1/6b1/3PPrNQ/2nkb3/5bP1/2nr3R/3B1N1Q b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 e5 f4 exd4 e4 Bd6 e5 Nf6 e6 Be5 fxe5 Ng8 Kd2 Nd7 Kd3 h5 Ke4 a5 b4 Ra6 g3 f5+ Kf4 c5 b6 c4 e7 Kf7 b7 c3 b8Q h3 b5 h4 b6 c2 b7 a4 Bg2 h2 Ra3 d3 Ra1 d2 Qg4 d1R Qa8 a3 b8N h3 Be4 a2 Qe2 Nh6 Bd2 c1Q Be3 Ng4 Kf3 f4 Nc6 Nb8 Na7 Qcc7 Qc6 Qdd7 Qb7 Rf8 Nb5 Rf6 Bc2 Kg7 Ke4 f3 Bb3 f2 Nd6 f1B Nf3 Kg6 Bh6 Ne3 Ne8 Nc4 Nbd2 Rf4+ Kd3 Kf5 Ng5 Rf2 Kd4 Bg2 Rc1 a1N Qh5 Bf1 Qb6 Bd3 Bg7 Rff1 Rc2 Rf2 Rf1 h1B Ra2 h2 Ra7 Rf3 Rf2 Bg2 Qb4 h1B Qc3 Bb1 Qe3 Bd3 Qe1 Bc2 Qg1 Bd3 Nf1 Rd2 Bd1 Nc2+ Kc3 Bh3 Re2 Bg4 Rh2 Bg2 Qh1 Rf4 Nh7+ Ke4 Kb3 Kd4 Ng5 Nc6 Ka4 Bg6 Kb5 R4f5 Rb7 Be2 Ka6 Nb8+ Ka7 Be4 Ka8 B2f3 Ra7
6Rn/2bbr1qP/Q2nPB2/2P2B2/1R1r2N1/3P2n1/2Qbbk2/K2nNnN1 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 axb5 d5 g4 e5 gxh5 exf4 c4 dxc4 bxc5 Qd4 Ra3 Qd3 Ra1 Qd8 e4 Ke7 h4 Ke6 b6 Ke5 h6 Kd4 e5 g5 b7 f5 e6 a5 d3 g4 Kd2 g3 Kc2 f3 Kb2 g2 h7 a4 h5 c3+ Ka2 f4 h6 a3 Rh2 f2 Rh3 c2 Be2 f1B Rh1 f3 Bg5 c1B Bh4 Ke3 Bf6 f2 Be7 Ra4 Nf3 g1N Qc2 Bd2 Qc1 Nc6 b8Q Nd4 Qc3 Nb5 Qb2 Qd7 Qb7 Rd4 Qc2 Qc7 Bd8 Ne7 Qa6 Ng6 Nc3 Bd6 Rb1 Re8 h8N Be5 Bd1 Ne2 Nf7 Nh8 Rh5 Ng3 h7 Bf4 Ka1 a2 Bf6 Qe7 Rf5 Bd7 Ne1 Bc7 Rb4 Nd6 Kb2 Qf8 Bf3 Re7 Ne2 Qg8 Ng1 Be2 Rg5 f1N Bd5 Kf2 Nh6 Qf7 Rg8 Qg7 Be4 a1N Qb1 Nc2 Bf5 Nce3 Qc2 Nd1+ Ka2 Nge4 Ka1 Neg3 Ng4+
3N1BnN/b2KR1n1/1P2P1P1/3k1P2/1r1nB2r/2B2Q2/q6n/1qQrn1Rr b - - 0 1 illegal: No possible last move, all moves rejected
QK3b2/PRpB1Nr1/3PbR2/1P4N1/nBk1qP2/1bn5/1nb3R1/2r2bQ1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a5 b5 Ra6 Qg4 Ra7 Qb4 Ra8 Nc3 axb4 Na4 Qd7 Nc5 Qd6 Nxb7 Qd8 Ke2 Kf7 Kd3 e5 Ke4 h5 a4 b3 f4 h3 g4 b2 d4 h2 g5 h4 a5 h3 d6 b1B+ Kd5 e4 d7 e3 a6 e2 f6 e1N Nf3 Nd3 Rg1 h1B Rg2 h2 Bd2 Rh7 Bb4 Qe8 d8Q Nd7 Kc6 Ke6 f7 Rg7 g6 Nb2 Nd6 Ngf6 a7 Ne4 Ra6 Nc3 Rb6 Bc2 Rb7 Qe7 Bd3 Nc5 Bf1 N5a4 d5+ Kf6 Be2 Be6 Ng5 Rc8 Qe8 Rd8 Bg4 Rd7 Qa8 Qe8 Rf2 Bg2 Bh3 Bf1 Rg2 h1B Bf5 Rh7 g7 Bb3 g8Q Rg7 Rb6 Re7+ Kb7 Qc6+ Kb8 Qc4 Nc8 Qe4 Rb7 Rd7 Bg4 Rd6 Bf5 Rc6 Nd6 Rc5 Rc2 Bf3 Rg2 Bfd1 Bg4 Bdc2 Bh3 Ke7 Bg4 Kd7 Bh3 Be7 f8R Rc6 Rf6 Bf8 Bg4 Rc4 Bh5 Ke7 Be8 Rc5 Bd7 Rc6 Nc4+ Rc5 Ne5 Kd6 Ba5 Rc4 Nef7+ Kc5 d6 Kd4 Bb4 Rc5 Rf2 Kc4 Re2 Rd5 Rg2 Rd1 Qh8 Rb1 Qh2 Rc1 Qg1
3k4/B2b4/q1r5/1nP1q1P1/qq6/1n1QRp2/BP1qQRP1/r1NQb1KN b - - 0 1 legal: proof: f4 c5 h4 e5 a4 exf4 d4 b5 axb5 g5 hxg5 a6 bxa6 cxd4 Kf2 h5 c4 d5 e4 f5 a7 f3 e5 h4 e6 f4 e7 d3 Qb3 d2 Qc2 d1Q Qa4+ Bd7 Ne2 h3 Nbc3 d4 Qc6 d3 Qe4 h2 Qc6 d2 Ra2 Qb3 Ra3 d1Q Ng1 Na6 Bd2 Nf6 Na2 Rh6 Nc1 Qb4 Rb3 Nc5 Qa6 Nd5 Nge2 Nc7 Be3 Rc6 Ng3 Nb5 Bd3 Qc7 Bb1 Qe5 Rf1 h1Q Ba2 Qh4 Kg1 Qdd2 Rf2 Bg7 Rd3 Nb3 Nh1 Bh8 Bb6 Qa4 c5 Bf6 Re2 Qg4 Rde3 f2+ Kh2 f1Q Rf2 Qfc4 Kg1 Qab4 Qa4 f3 Qa3 Qeg3 Qa4 Bc3 Qa6 Qe5 Qa3 Rb8 a8Q Qce2 Qb7 Ra8 Ba7 Qa4 Qc7 Qgb4 Qd6 Qec4 Qd3 Qa6 Qf1 Qba4 Qe1 Qcb4 Qd1 Qdd6 Rf1 Be1 Rf2 Qdd2 Rfe2 Bf5 Rf2 Kd7 e8Q+ Kc7 Qf8 Bd7 Qe7 Kc8 Qe6 Kc7 Qc4 Kd8 Qce2 N3d4 Bf7 Qab3 Bh5 Qb7 Bb8 Qbc2 Qb3 Ra1 Ba7 Qa6 Qbd3 Qcb3 Bf7 Q3a4 Ba2 Nb3 Qd4 Ke8 Qc3 Kd8 Qcd3
1K1nB1R1/3Q1P2/p2RQ1B1/P3P2N/1N4nb/2qbB1r1/2qqP1q1/r1k3q1 b - - 0 1 legal: proof: c4 c5 h4 g5 d4 e5 dxe5 d5 cxd5 gxh4 g4 f5 b4 fxg4 bxc5 Kd7 Bh3 Ke7 Bf1 Ke8 Kd2 Ke7 Kc3 b5 Kb4 h5 f4 g3 a4 h3 c6 h4 Kc5 g2 f5 h2 c7 h3 Bg5+ Nf6 Nd2 b4 Nb3 Ba6 c8B Bd3 Bd7 Nc6 Na5 b3 Be8 b2 Qb3 b1Q Be3 Rg8 Qb6 Qa2 Rd1 Rg3 Bg6 Kd7+ d6 Ng4 f6 Ke6 f7 Be7 Rd2 Bf6 d7 Bh4 Rd1 Qc7 d8Q Qb3 Qc8+ Qd7 Qbb7 Nd8 Nc6 Qb2 Nb4 Qd2 Nf3 g1Q Bg2 Qa2 Nd2 Qc2+ Nc4 Qe1 Rg1 h1Q Bc6 h2 Kb5 Qe4 Ka6 h1Q Qb5 Qhg2 Nd2 Qec4 Ne4 Q4c3 Nf6 Qef2 Nh5 Qfe1 Qb7 Qdd4 Qb6 Qed2 Na2 Qdc5 Be8+ Kd5 Qf6 Bf5 Qb7+ Kc4 Qd7 Kb3 Qfe6+ Kb2 Nb4 Bd3+ Qb5 Nc6 Kb7 Q5d4 Kc7 Nd8+ Qbc6 a6 a5 Rb8 Qd7 Rb6 Qc4 Rf6 Kb8 Rf1 Qce6 Re1 Rf1 Qdc5 Rf6 Rg1 Rdf1 Q5d4 R1f5 Ra1 Rg5 Qdc5 Qa2+ Kc1 Rd6 Q5d4 Qae6 Qdc5 Bh7 Q5d4 Rg8 Qdc5 Bg6 Q5d4 Bg5 Qdg1 Be3
2qnQn1K/n4P2/4n1pP/1qN1kBP1/6RB/1Q3bNb/rP2R2B/1qr5 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Bh3 g4 Kd7 g5 Ke8 Qa4 Bc8 Qg4 hxg4 f4 e5 e3 exf4 Ke2 f3+ Kd1 f2 Ne2 f5 Ng1 f4 Ra6 f3 Ra4 Bd6 Ra1 Bf4 exf4 Kf7 Ra2 Kf8 Ra1 Ke8 Kc2 Kd7 Kc3 Kd6 Kd4 a5 h4 g6 f5 a4 h5 g3 h6 g2 f6 a3 b6 a2 b7 Bg4 f7 Nd7 b8B Nf8 Rh2 Qc8 Ne2 g1Q Nbc3 Ne7 Bh3 f1B+ Ke4 f2 d4 Ra4 Bd2 Nc6 Be1 Nd8 Ng3 Bf3+ Kf4 Ra8 Bf5 Bh3 Na4 f1Q Nc5 Qb5 Re2 Ra3 Rc1 a1N Rc4 Nb3 Bf2 Qb1 Be1 Nd2 Ra4 Ne4 Bf2 Ke7 Ke5 Nd6 Rc4 Ra2 Ra4 Nde6 Be1 Nb7 d6+ Kd8 d7 Ke7 d5 Nbd8 Rg4 c6 Nb7 c5 Bc7 c4 Nc5 c3 Bf2 c2 Bb8 Nh7 d6+ Kf8 Be1 c1N Bc7 Nb3 Bb8 Nbd4 Bc7 Nb7 d8Q+ Qe8 d7 Nb5 Qf6 Na7 d8Q Rg8 Qd1 Nbd8 Qh8 Ke7 Qb3 Qb5 Bb8 Nb7 Bc7 Rd8 Bf2 Nhf8 Be1 Rd1 Bd6+ Kd8 Kf6 Rc1 Be5 Nc7 Kg7 Ke7 Qg8 Nd8 Kh8 Nce6 Bb8 Qc7 Bf2 Kd6 Be1 Nh7 Qe8 Nhf8 Nge4+ Ke5 Bg3+ Kd4 Bh4 Qcb7 Bh2 Qc8 Qc3+ Kd5 Ng3 Kd6 Qa3 Kd5 Qb3+ Kd6 Nce4+ Ke5 Nc5+
2n1Q3/3qprNq/3B2P1/b2P1R2/nbP5/1r2Pb2/2R3BN/1nKBkQ1b b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 axb5 d5 g4 g5 fxg5 hxg4 c3 d4 Qc2 Bh6 bxc5 Bg7 c4 Bf8 Qc3 dxc3 Kd1 Kd7 d4 Ke6 h4 Kf5 d5 Ke4 e3 f5 c6 a5 h5 c2+ Kd2 f4 b6 a4 b7 g3 c7 g2 h6 f3 g6 a3 h7 f2 Bb2 c1Q+ Ke2 a2 Bg7 Ra3 Bb2 Rb3 Rh3 Nd7 b8Q Nh6 Rg3 Bg7 Nf3 Bc3 Nh4 Nb6 Qb7 Nf7 Ba3 Na4 Qb8 Bb4 Nf3 Qd7 Nh4 Nd6 Rg5 Rf8 h8Q Rf7 Qe8 g1B Rf5 Bh2 Bh3 Qh1 Qb5 f1B+ Kd1 Kd3 Kc1 Ke2 Bg2 Ba5 Nd2 Ke1 Bc5 Be2 Nf1 Bf3 Qa6 Be5 Nh2 Bec3 Rb1 a1N Rb2 Bcb4 Rc2 Bb7 Qa7 Nc8 Bd6 Bc6 Qd4 Bb5 Rb2 Nc2 Qd3 Na3 Ra2 Nb1 Rc2 Na7 c8B Be4 Bb7 Nc8 Bc6 Bf3 Rf4 Ba6 Nf5 Bb5 Ng7 Ba6 Ng4 Qh7 Nh2 Be4 Rf5 Bb5 Bh3 Bh1 Bg2 Qd8 Ba8 Bd7 Bc6 Be6 Rff2 Bg4 Rf5 Bf3 Bb5 Nc5 Ba4 Qd7 Rf2 Ra3 Bd1 Rb3 Rc2 Na4 Qf1#
n2rB3/3RQbN1/p4Br1/3RR1r1/2NP4/2P1n3/1q2rPnP/2n1kQKb b - - 0 1 illegal: No possible last move
RnBkr1N1/Q1rr1P2/4N2b/2p2NR1/2bB1b2/bQ4P1/qP2P3/5bbK b - - 0 1 legal: proof: d4 b5 g4 d5 c4 dxc4 a4 e5 axb5 f5 dxe5 fxg4 Bd2 g5 Qc1 g3 Ra5 g2 Nf3 g1B Ra6 g4 Be3 g3 Bf4 g2 Qd1 Nc6 Ra1 Nce7 Bh6 Nf5 Bc1 Ng3 hxg3 Bg4 Nd4 Be6 Nf3 Bc8 b6 a5 e6 h5 e7 c3 b7 a4 b8N h4 Qd5 h3 Ne5 h2 f4 c2 f5 a3 f6 a2 Nd2 Rh7 Ndf3 Be6 Nf7 Be3 N7g5 g1B Nd4 Bf4 Qb3 Bc4 Bh3 Qd5 Be3 c1B Nbc6 Rd8 Kf1 Rd7 Nf5 Bd2 Rd1 a1R Bd4 Ra8 Ra1 Qa5 Kg2 Qa2 Bg4 Bb4 Bh3 Bh6 Ne6 Ba3 Bg4 Bge3 Rhc1 Bg1 Kh1 Rf7 Rc3 Rg7 Re3 Rb8 Re5 Rbd8 Nb4 c5 Nc6 Rc7 Bh3 Kd7 e8Q+ Kc8 Kg2 Rgd7 f7 Nf6 Qe7 Re8 Rd5 Ng4 Kh1 Ne5 Nb4 Nc6 Bg4 Nb8 Nc6 Qb1 Bh3 Bb4 Ra8 Qa2 Ne5 Ba3 Ng4 Bge3 Nf6 Bf2 Kg2 h1B+ Kh2 Bg2 Ng8 Bf1 Kh1 Bg1 Re5 Rc6 Bg4 Rd5 Qa7 Rd7 Nh4 Rcc7 Rg5 Qb1 Nf5 Qa2 Bf3 Rde7 Bb7+ Kd7 Neg7 Kd8 Bc8 Red7 Ne6+
8/qRKp1k1n/BNR2P2/B2r3n/1P1n3b/1n2PRn1/1P1Q2bn/2Q1Nb2 b - - 0 1 legal: proof: h4 b5 d4 c5 e4 cxd4 h5 b4 a3 g6 axb4 gxh5 Ra4 h4 Ra3 Na6 Ra1 Nb8 Be3 f5 exf5 e5 Bc4 a5 Bd3 e4 Bc1 e3 Bf1 e2 Kd2 Ra6 Qe1 Re6 Qd1 Re3 fxe3 Kf7 Qe1 Ke7 Qd1 Ke8 Kd3 e1N+ Ke4 h5 Ke5 a4 c4 d3 g4 h3 c5 h2 c6 d2 g5 a3 c7 a2 g6 h4 g7 h3 Be2 Nf6 g8R Kf7 Bf3 Ba6 c8Q Bf1 Rg3 Rh5 Bb7 Qb6 Nf3 Nh7 Na3 Qa7 Nc4 Be7 Nb6 Bh4 Kd6 Nc6 f6 Rd5+ Kc7 Nd4 Rhg1 Ng2 Ne1 h1B Rf3 h2 Qe2 d1N Bd2 Nf4 Bc3 Nh5 Qd2 Nf2 Rg4 Qa8 Ba6 Bhg2 Rg5 h1N Rc1 a1N Rgf5 Ndc2 Be5 Nd4 Rc6 Nab3 Bd6 Ng4 Bf4 Rd6 Rb5 Rd5 Bd6 N1g3 Be7 Bd3 Bd8 Bdf1 Nc4 Nh1 Rb7 N1g3 Nb6 Nh2 Rc2 Ra5 Kd6 Bc4 Na4 Rb5 Ba5 Bcf1 Nb6 Re5 Qc6 Qa7 Kc7 Rd5 Qcc3 Bb5 Qc1 Bd3 Q3d2 Bdf1 Rc6
R5N1/Pb5P/P1N3qq/B1p2r2/1Q2r1R1/k1qR3P/Bbrr2QK/1nq5 b - - 0 1 legal: proof: c4 e5 b4 d5 cxd5 a5 bxa5 h5 f4 Nc6 Qa4 Kd7 Qe4 Nce7 Qg6 exf4 Qg4+ hxg4 h3 Nf5 g3 Nh4 gxh4 Ke8 Kf2 Ke7 Kg2 Kd6 d4 b5 e4 f5 a4 g5 a6 b4 a5 g3 h5 g4 a7 b3 a6 b2 h6 Qf6 h7 Qh6 Ra5 Bg7 Nc3 b1R Nd1 Bb7 Ba3+ Rb4 Nf2 Rd8 Ra4 Nf6 Ne2 f3+ Kg1 g2 Kh2 f4 e5+ Ke7 e6 Kd6 e7 Ne4 e8Q Nc3 Rg1 Nb1 Qe4 Rd7 Bb2 Rc8 Bc3 c6 Rh1 g1R Bg2 Rf1 Bd2 Rc4 Ba5 Rc2 Ra3 Re8 Rd3 c5 Rg1 g3+ Kh1 Bf6 Ng4 f2 Qf3 Bh8 Nf6 Re4 Ng8 Bf6 Qg4 f3 Qg5 Bg7 Qd2 Rd8 Qb4 Kd7 d6 Kc6 d7 Kd5 Qa3 Kc4 d5 Bb2 d6 Kb5 Qc3 Ka4 Nd4 Re3 Rd1 Re4 Qe1 Ka3 Nc6 Rf8 d8Q Rf5 Qd2 Rfe1 d7 f1Q Qb6 f2 d8R R1e2 Rf8 Qe1 Ra8 f1Q Bf3 g2+ Kh2 Rf2 Qg5 Qc4 Rd3+ Qcc3 Bd1 Rcd2 Bb3 Qec1 Ba2 Rc2 Rf1 Rfd2 Rf4 Qh5 Qg3 Qh6 Qf2 Qf1 Rg4 Qc1 Kg3 g1Q+ Qg2 Qg6 Qb5 Qe3+ Kh2 Qeh6 Qb4+
1b1B1RK1/3np3/PN1P1p2/rqP1Q2n/2Q2b1N/1nB1P1R1/2rB3b/4r1k1 b - - 0 1 legal: proof: g4 g5 b4 h5 gxh5 a5 f3 axb4 Nh3 g4 Na3 d6 Nb1 g3 Ng1 Bg4 fxg4 d5 c4 Ra4 c5 Nf6 Bg2 Ng8 Be4 Ra8 Bd3 Qd7 Ba6 Qd8 Bc4 dxc4 Nc3 Qd7 Nd5 Qd8 Nxc7+ Kd7 d4 Kc6 Kd2 b5 Ke3 g2 Ke4 c3 Kf5 b3 a4 b2 h4 b1N e3 b4 h6 b3 a5 c2 d5+ Kd7 d6 Kc6 g5 b2 g6 Bg7 h5 Be5 h7 Qe8 h6 Nd7 g7 Nd2 Nd5 b1R Rh3 Nb3 Qh5 Bf4 Rg3 Ngf6 Bd2 c1B Nf3 g1B g8Q Bh2 Nh4 Ba3 Nb6 Bb4 Qgg4 Re1 Rc1 Rg8 h8B Rg7 Qhg5 Nh5 h7 Rg6 Bhc3 Ra6 Nc4 Kd5 h8B Qb8 Ra1 Qb5 Bhe5 f6 Nb6+ Kc6 Ke6 Ra7 Kf7 Ra8 Nc8 Kd5 Ra3 Ke4 Nb6 Kd3 Qe6 Ke2 Qc4+ Kf2 Bed4 Ra7 Qe5 Rh6 Kg8 Ra6 Rg7 Rg6 Ra1 Rg2 Rg3 Kg1 Rb1 Ra7 Ra1 Rb7 a6 Ba5 Rb1 Rb8+ Nc8 Bd8 Ba5 Bc7 B4c3 Rb7 Bb6 Bb8 Bc7 Qb4 Bd8 Rb5 Nb6 Ra5 Rg7 Ng3 Rf7 Qb5 Rf8 Rf2 Bc1 Rc2 B1d2 Rf1 Re1 Nh5 Re2 Rd1 Rf2 Rda1 Rf3 Re1 Rg3+
Q3R1R1/1pPN4/1Pq3BP/Q2q3N/rnB1r2n/2k3K1/1R2bPp1/2bb1q2 b - - 0 1 legal: proof: g4 f5 b4 h5 gxh5 e5 d4 exd4 e4 a5 b5 c5 e5 c4 e6 f4 Bxf4 Nh6 Bd2 Ng8 Bb4 axb4 Bxc4 Ne7 Bf1 Ng8 h4 Ke7 a4 Kd6 c4 Kc5 h6 d5 h7 g5 h5 b3 h6 Kb4 a5 g4 b6 b2 a6 d3 c5 d2+ Ke2 g3 Kf3 g2 e7 d4 e8B d3 c6 Qc7 a7 Na6 Nh3 Ne7 Ra2 Ng6 Nf4 Bg4+ Kg3 Nh4 Bg6 Be2 Na3 b1Q Rb2+ Kc3 Nc4 Ba3 Qa4 d1B Ne5 d2 Nd7 Nb4 Qa5 Rhe8 h8R Re4 Rg8 Qd6 c7 Qc6 Nh5 Qa2 Rb1 Bc1 Rb2 Qad5 Rh3 Bb3 Rh1 d1Q Rg1 Qe1 Rh1 Bbd1 Rg1 Bf3 Bc4 Qf1 Rh1 Rf8 a8Q Bfe2 Q8a7 Ra8 Qb8 Ra6 Qa8 Nf3 Rh4 Ra7 Rf4 Nh4 Rff8 Ra6 Re8 Ra7 Qb5 Ra4 Qba5
1bN2r2/B1N1b1p1/P3KP2/2b1B2R/1nP2Rp1/rqr1nP1Q/1kr5/2B2Q2 b - - 0 1 legal: proof: e4 b5 c4 h5 cxb5 f5 exf5 a6 g4 hxg4 b6 Rh5 b7 Rh8 b4 c5 d3 c4 b5 c3 b6 d6 Bg2 Be6 Bc6+ Kf7 Ba4 Bc4 Bb5 axb5 dxc4 Ke8 Ke2 Kd7 Kd3 Kc6 Ke4 Kc5 h4 Kb4 Kd5 e5 a4 c2 h5 Kb3 f3 b4 f6 e4 a5 e3 h6 e2 h7 e1B Ra4 Bg3 Rh5 Be7 Nc3 Nh6 Ke6 d5 Ne4 d4 Rb5 d3 Ra1 d2 Rh5 Nf5 Qf1 d1R Ra4 Nc6 b8B Ne3 b7 Rd2 Nh3 Qb6 Be5 Rhf8 b8B Rg2 Bd2 c1B h8Q Ba3 Nhg5 Ka2 Rh1 b3 Qh3 b2 Nd6 b1R Nc8 Rc1 Ba7 Qb3 Rb4 Rc2 Rb5 Nb4 Rd5 Rf2 Rd4 Rc3 Rf4 Kb2 Rh2 Nbc2 Rh1 Bac5 Rh2 Nb4 a6 Rb8 Ne4 Rb5 Ned6 Ra5 Ne8 Ra3 Nc7 Re2 Qhg2 Rf2 Rh5 Bh2 Qh3 Re2 Be1 Rc2 Bd2 Qa4 Na8 Nd1 Re4 Be3 Bed4 Bb8 Be5 B3c5 Nc7 Qb3 Rf4 Ne3 Bc1+
qR1QR3/kN1Qp2p/nP6/PPq3b1/2B1rnP1/b1R5/r7/1KNnB1n1 b - - 0 1 illegal: No possible last move
n1nr2n1/n3R1Q1/1r2pN2/BPpP3B/8/4N1P1/QKn1qP2/2Bkr1Rb b - - 0 1 legal: proof: c4 b5 e4 g5 a4 f5 axb5 d5 cxd5 fxe4 b4 a5 h4 gxh4 Qb3 a4 Qc2 Bg7 Qd1 Bd4 Be2 Bb6 Bf1 Ba5 bxa5 Bg4 Nh3 Be6 Ng1 Bc8 d4 Kd7 Kd2 Kd6 Kc3 h5 a6 c5 a7 h3 Bd2 a3 Qc1 h4 Qc2 a2 Bg5 h2 Ne2 e3 Nf4 h3 Rg1 h1R Bh6 e6 Qh7 h2 Qe4 e2 Qf3 e1N Bg5 Nd7 Na3 Bb7 Qe3 Rb8 a8Q Nc2 Ne2 Nb4 Nf4 Nc6 Qc1 Nb6 Be2 Na7 Rd1 Re1 Nc2 h1N Ne3 Ng3 Nh5 Nf5 g3 Nfe7 Qb2 Nec8 Nf6 Qd7 Rac1 a1N Bh5 Nc2 Qa1 Qh7 Kb2 Qe4 Qa2 Bc6 Qb7 Na8 Qg7 Rb6 Rb1 Re2 Rg1 Re1 Ra1 Qg4 Ng2 Qe2 Bc1 Nh6 Ne3 Rd8 Qh7 Ng8 Qh6 Kc7 d6+ Kb7 d7 Bh1 d5 Kc7 Rg2 Kd6 Rg1 Ke5 Qf8 Kd4 Qg7 Rf8 d8B Kd3 Bc7 Rd8 Qb1 Rbd6 Ba5 Rb6 Ra4 Qd2 Rg4 Ke2 Qa2 Qd3 Qh8 Qe4 Rg7+ Qf3 Re7 Qg4 Ng2 Kd1 Qg7 Qe2 Ne3+
1N3r1N/3rn1n1/knP2R1n/b3R3/1P1QPpP1/p1B2B1n/1q1R2r1/4K1Q1 b - - 0 1 legal: proof: d4 c5 a4 b5 axb5 g5 f4 gxf4 g4 e6 Nc3 Ba6 Nd5 Bb7 h3 Bc6 g5 Bb7 Ne3 Bf3 Nd5 Bg4 hxg4 Qe7 Nb4 Qd8 Nc6 e5 dxe5 Nh6 Nd4 cxd4 Bg2 Ng8 Bh3 Nf6 Bf1 Ng8 c4 a5 e4 h5 c5 d5 g6 Kd7 b6 Kc8 g7 Kb7 e6 f5 b3 d3 c6+ Ka6 e7 d4 e8R f3 b7 f2+ Kd2 h4 Rh2 a4 Nh3 a3 Qc2 f4 Rh1 Bb4+ Kd1 Qf6 Qc5 Ba5 b4 Nd7 Qf8 Nb6 Rb8 Nh6 Ng5 h3 g8Q h2 Be2 f1N Bb2 Ne3+ Ke1 Nef5 Qe6 Ng7 Rf1 h1N Rf2 Ng3 Qc5 N3f5 Bf3 Ne7 Nf7 Rf8 Re8 Rd8 Qc8 Rd7 Nh8 Qe5 Rd1 d2+ Kf1 d3 Qd8 Qf6 Bc3 Qd4 Re2 Qf6 Qg1 Qe5 Rde1 d1N Rd2 Nf2 Red1 Nh3 Ke1 Rd5 Ba1 Qb2 Qd6 Rc5 Qd5 Rc2 Qdd4 Qb3 Bc3 Qb2 Rh2 Rg2 Rd2 Nf2 Rh5 Nh3 Rf5 Nf2 Rf6 Nh3 Rf2 d2+ Kd1 Ng6 Re5 Ne7 Ke2 Qb3 Kf1 d1R+ Ke2 Rd2+ Ke1 Rd3 Rd2 Qb2 Qdf2 Rd5 Qd4 Rd7 b8N+
6qr/3r2r1/1p1P4/P1bbKRR1/3P1P1Q/p4B2/1qkB2rB/2QNnNq1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a5 Qg4 a4 Qd1 Nc6 a3 Na5 bxa5 Qd6 Rh3 Qxa3 Rh1 Qa2 Ke2 Kf7 Kd3 Kf6 Kd4 e5+ Ke4 h5 g4 c5 d4 a3 f4 b6 Be2 c4 Be3 h3 Qe1 h2 Nd2 h4 Qf2 c3 Bf3 h3 Qe1 c2 Rb1 c1Q Bf2 Qcb2 Qe3 Ne7 Rf1 Bb7 Qe1 Nc6 Bg3 Bc5 Ne2 Rag8 Qa1 Nb4 Rfg1 Rg7 Nc3 Nd3 Nf1 Ne1 Nd1 Rd8 Rg2 Rdd7 Rhg1 h1Q Bh2 Ba8 Re2 Bc6 Rg3 Qg1 g5+ Ke7 f6+ Kd6 Kf5 e4 f7 e3 g6 Qab3 Reg2 e2 Rg5 Bb7 Rh5 Ba8 Rgg5 Bb7 Bg3 h2 Ke4 h1R Bh2 Qc4 Rf5 Qcb3 Rhg5 Bc6 Bg3 Rh8 Bh2 Rgh7 g7 Bb7 g8Q Rg7 Rh5 Ba8 Qd8 Rg2 Bg4 Qg3 Bf3 Qg8 Qe7+ Kc7 Qa2 Nc2 Qh4 Kd6 Nde3 e1R Qa1 Rg7 Rhg5 Re2 Rg2 Bb7 Rgg5 Rg2 Nd1 Bc6 Qh3 Ne1 Qh4 Kc7 Ke5 Kb7 Qb1 Ka6 Qa2 Kb5 Qa1 Ka4 f8B Kb3 Be7 Bb4 Bc5 Kc2 d6 Bd2 Bb4 Bd5 Bc3 Qb3 Bb2 Bb4 Bc3 Qb2 Bd2 Bc5 Qc1+
n6r/5Bkb/p2BbN1N/Pq4BK/2Pb4/PnnP3p/1qRQ1Q1n/7R b - - 0 1 legal: proof: e4 c5 h4 b5 a3 f5 exf5 g5 Bc4 a6 Be6 Ra7 Qg4 Rc7 Bxd7+ Kf7 Qb4 gxh4 a4 cxb4 a5 Rc6 Ke2 Rc3 Ke1 Ra3 bxa3 Qc7 Ra2 Qb6 Ra1 Qd8 Ke2 h5 Kf3 e5 c4 e4+ Kf4 e3 g4 h3 f3 h4 f6 h2 Kg5 e2 d3 e1Q f4 b3 f5 b2 Be3 b4 Ne2 b3 Nd4 h3 Nd2 b1N Ne4 b2 Ra2 Nh6 Kh5 Bc5 g5 Qe8 g6+ Kf8 f7 Nc3 Bd2 b1N Be6 Qf2 Rc2 Nd7 Bg5 Nd2 Nf6 Nb3 Bd5 Nb6 g7+ Ke7 g8Q Qb5 Qh7 Ng4 Qh6 Be6 f8B+ Kf7 Bd6 Qe2 Nh7 Na8 f6 Qd2 Nf5 Kg8 Bh4 Qg2 Qd2 Bd4 Bg5 Kf7 Rd1 h1B Nh6+ Ke8 Rg1 Nh2 Rgc1 Qf2 Re1 Be4 f7+ Kd7 f8Q Qe2+ Qf3 Ke8 Rh1 B4f5 Ng4 Kf7 Nh6+ Kg7 Nf6 Qf2 Qg3 Bh7 Qge3 Bc8 Bf7 Be6 Qde1 Qd2 Q3f2 Qc1 Qee2 Qb2 Qd2
3qQRKR/2q3pP/2RqP2B/k3N3/n2p2n1/1P1P4/rrn1Qq2/B3b2N b - - 0 1 legal: proof: f4 c5 f5 b5 f6 c4 Nh3 b4 Ng1 c3 bxc3 b3 axb3 exf6 Nf3 f5 Ng1 f4 Nh3 h5 Ng1 f5 g4 f3 Ba3 f4 Bh3 Ba6 Bb2 Bd3 Bc1 Bf5 gxf5 Ke7 Bg4 hxg4 Bb2 Kf7 Bc1 Ke8 Kf2 d5 e4 Kd7 h4 Kc7 c4 Kb6 e5 a5 h5 d4 e6 a4 h6 a3 c5+ Kb5 c4+ Kb4 f6 a2 c6 Qe7 d3 Qf7 c5 Nd7 c7 Qe7 c8Q Ne5 c6 Nd7 f7 Ka5 c7 Nc5 Ne2 Qd6 Qe8 Na4 c8R Nf6 Ng3 Qd8 Rh4 Bb4 f8B Qc7 Nh1 g3+ Kf1 f2 Kg2 f1N Kh3 f3 Qe2 f2 Nd2 g2 Nf3 g1Q Ne5 Be1 Bfa3 Ne3 Bab2 Qg5 h7 Rf8 Rf4 Nc2 Be3 Ra7 Rc1 Ng4 Ba1 Qgd8 Ra8 Rf6 Kh4 f1Q+ Kg5 Qf2 Rb8 Rf5+ Kg6 Rh5 Rf3 Rh2 Bh6 Ra6 Rf8 Qcd6 Bb2 a1Q Rc8 Qaa3 Ba1 Qac5 Rh8 Qcc7 Rb8 Na3 Rc6 Nc2 Nd7 Qg2 Kf7 Qf2+ Kg8 Qdh4 Nf6 Nc5 Ne4 Qf5 Be3 Nb4 Qd1 Rb2 Qe7 Qff2 Nf6 Nc2 Rf8 Kb4 Bh6 Raa2 Qe2 Na4 Qe8 Ka5 Nd7 Qhd8 Ne5
1Rq5/qPP4b/kn2N1p1/rB1Q3q/p7/2RPn1K1/1N1P3B/nbQn3Q b - - 0 1 legal: proof: f4 b5 g4 d5 a4 e5 g5 exf4 g6 d4 Ra2 d3 cxd3 b4 Ra3 hxg6 Ra2 g5 Ra1 g4 Nh3 c5 Qb3 a5 Qc3 c4 Qc2 c3 Qd1 c2 Rg1 Bc5 Rh1 Bd4 Ng1 Bc3 bxc3 Rh5 Ra2 Rb5 axb5 Ra6 Ra4 Rh6 Ra1 Rh8 Kf2 Kd7 e4 Kc7 h4 Kb7 e5 f5 b6 b3 e6 b2 h5 f3 h6 f4 e7 a4 e8Q Bf5 h7 Ka6 c4 Qc8 b7 Ne7 c5 Nd7 c6 Nb6 c7 Ned5 Qd7 Nc3 Na3 b1B Bb2 c1N Qe1 Nb3 Ne2 Re8 h8Q Bh7 Qd6 g6 Bg2 Re5 Nc4 Ra5 Ra3 Na1 Qc1 g3+ Kg1 Rf5 Qd5 Nd1 Be5 f2+ Kf1 Rh5 Nd4 Rf5 Ke2 f1N Kf3 Nfe3 Rc3 Rg5 Bh3 g2 Nb2 g1Q Bd7 Qh2 Ne6 Qh5+ Ke4 f3 Kf4 Rf5+ Kg3 f2 Bc6 f1Q Bb5+ Ka5 Bd6 Re5 Rh2 Qff8 Re2 Qa8 Rf2 Qfc8 Rf8 Qa7 Rg8 Qd7 Rb8 Qc8 Qd8 Rf5 Qh4 Re5 Kh3 Rg5 Bh2 Rf5 Kg3 Re5 Be8+ Ka6 Qhe4 Rf5 Qh1 Re5 Qb3 Rb5 Qbd5 Ra5 Bb5+
4N3/1pKPnn1Q/3R1P1Q/NB1q2P1/1p1B2R1/1n3rk1/1n2PnN1/bnb5 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 d5 cxd5 e5 Bg2 exf4 Bh3 f3 Bf1 f4 h3 g5 Nc3 Bf5 gxf5 g4 Nb1 g3 Ba3 Ra6 Bb2 Rg6 Bc1 Rg4 hxg4 Kf7 Na3 Ke7 Nb1 Ke8 a4 Kd7 d4 Kd6 Kd2 c5 Kd3 h5 Kc4 h4 Kb5 h3 g5 c4 a5 f2 a6 f3 a7 c3 a8N c2 Nd2 g2 Nc7 h2 Kb6 Rh3 Bb2 c1B Ra6 Bg7 Nb3 Ne7 Qc2 Nbc6 Na5 Ne5 Qd3 Rg3 Nh3 g1N Nf4 Nf7 Bg2 Nh3 Rg1 f1N Bh1 f2 Ng2 Be5 f6 Rf3 Qh7 Nd2 Ba1 f1N Qh6 Kd7 d6 Nf4 d5 Nb3 Bd4 Nfd2 Qh7 Qg8 Ne8 Nd3 Qh6 Nb1 Qh7 Kc8 d7+ Kb8 d6 Nb2 Nh4 Qg6 Qh6 Qe4 Rg4 Qd5 Bg2 h1N Bh3 Nf2 Ng2 Rc3 d8Q+ Rc8 Qd7 Rc3 Qb5 Rf3 Qd3 Kc8 Qe4 Kd7 Qeh7 Ke6 Kc7 Na4 Be3 Ba1 d7+ Ke5 Rd6 Ng6 Bd4+ Kf5 Rg3+ Ke4 Be6 Nb2 Be3 Ke5 Rg4 Ne7 Bc5 Qd1 Bc4 Qd5 Q7g7 Kf5 Bb5 Ke5 Rc4 Kf5 Bd4 Kg4 Qgh7 Kg3 Ba7 Nbd3 Rf4 Nb2 Bd4 Na3 Re4 Nb1 Rg4+
2rR2N1/b1bn2p1/Q1b1QP2/4rq2/2K1Pkb1/rB1RPN1P/2B1p2N/1r6 b - - 0 1 illegal: No possible last move, all moves rejected
K1N5/b1Q1P1bN/1P1p2N1/1B1Rr2q/1P1r4/r3Bpbr/1Q1b1P1R/3n3k b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 h5 Bd2 hxg4 Bc1 b5 axb5 Bb7 Kd2 e5 Ke1 Be4 Ra4 Bf5 Ra1 Bd3 exd3 e4 Bg2 e3 Bf1 Na6 Nf3 Nc5 Ng1 Ne4 dxe4 Rh3 Bg2 Rh4 Bf1 Rh8 Ke2 Ke7 Kd3 Kd6 Kc4 Ke5 h4 Kf4 Kd5 f5 b4 a5 c4 g5 h5 a4 c5 d3 h6 a3 e5 d6 Kc6 a2 Kb7 d2 h7 g3 c6 g2 c7 e2 c8N e1B e6 g4 e7 g3 Qc2 Nf6 Ba3 d1R Bc4 Bd2 Nf3 g1B Ne5 g2 Bf7 Nd5 Be6 Qa5 Nc3 Ne3 Nb6 Bg7 Bd7 Bh2 Ne4 g1R Nf6 Rg5 Ng6+ Kf3 Rg1 f4 Bc1 Re5 Nc8 Bg3 Rg2 Ra6 Rb1 a1B Qc7 Bd4 Kb8 Ba7+ Ka8 Bh6 b6 Bg7 Rb3 Qc5 Rd3 Ra3 Ba4 Qb5 Rd5 Qe8 Nf8 Qh5 Bd7 Rf1 Ba4 Nd1 Bb5 Rfe1 Ng6 R1e4 Nd7 Rd4 Ndf8 Be1 Be3 Bd2 Rg1 Bh2 Rg5 Bg3 Rg4 Kg2 Rg5 Rg8 h8Q f3 Nh7 Kh1 Rg4 Bf4 Rg2 Bg3 Qc3 Rf8 Qb2 Rff4 Qd8 Rh4 Qc7 Rh3 Rh2+
1rN3b1/1QqkBrn1/3P2Pr/2Q3p1/q1NrBPRP/p4r2/6K1/q1N1R3 b - - 0 1 legal: proof: a4 g5 c4 f5 h4 b5 axb5 d5 e4 fxe4 Ra2 Nd7 Ra4 Bg7 Ra1 Be5 Be2 Nf8 Bf1 dxc4 Qh5+ Ng6 Qd1 Bg3 h5 h6 hxg6 h5 Rh3 h4 Rh2 h3 Rh1 Bh4 g3 Qd3 gxh4 Qd8 f4 a5 Kf2 e5 d4 c5 b4 h2 b6 c3 d5 e3+ Kf3 a4 b5 c4 d6 e2 b7 e1Q b8N c2 b6 a3 b7 e4+ Kg2 e3 Bd3 e2 Nf3 c3 Bb2 c1Q Nd4 c2 Bc4 Rh6 Nb5 Be6 Nd4 Qda5 Nd2 Nf6 Nd7 Bg8 Bc3 Rb8 Nb6 Nh5 N4b3 Qa4 Nc8 Kd7 Bd3 Ng7 Rg1 h1R Nc4 Rh3 Be4 Rf3 Qd4 Qed1 Qd5 e1R Qc5 Ree3 Ba5 Rd3 Bd8 Rd4 Be7 Qe1 Rb1 Qea5 Re1 Qc7 Rb2 Qa1 Nc1 Ra8 b8Q Ra7 Ne2 c1R Qb7 Ra8 Rb1 Rb8 Rg1 Rcc3 Rbe1 Rb3 Nc1 Rb5 Qb4 Rf5 Qc5 Rf8 Kh1 Rf6 Rg4 Rf7 Kg2
q5BK/QqnQ2Pb/R1P3r1/NBp3q1/R3pnQ1/4P1PN/4n3/1qq4k b - - 0 1 legal: proof: f4 c5 a3 c4 g3 g5 fxg5 b5 b3 cxb3 h3 a5 Bb2 Ra7 Bc1 Rc7 Rh2 Rc4 Rh1 Rg4 hxg4 Bb7 Bh3 Ba6 Bf1 Bc8 c4 b4 c5 b2 d3 d6 c6 b3 Be3 Bg7 Bc5 Bc3+ Qd2 Bb4 axb4 dxc5 Qc1 Qd6 Qd1 Qd8 Kf2 f5 Kf3 Kf7 Kf4 Kg6 Ke5 h5 e3 f4 b5 f3 d4 a4 d5 h4 d6 h3 b6 h2 d7 a3 b7 f2 Ne2 a2 Qd4 Nf6 Qd5 Nh5 Nd4 Na6 b8Q Rh6 Qc4 Nc7 Qcb5 Nf4 Na3 b1N Ne6 b2 Qe2 Nc3 Nc4 Qg8 Rg1 h1Q d8Q Ba6 Rg2 b1Q Qd7 Qb7 Qa8 Qh5 Qa7 Qga8 Qed1 Qh4 Be2 f1Q Rf2 Ng2 Rf4 Qe1 Qa4 Qc1 Re4 Bb5 Bd3 Ne2 Nf4+ Kg7 Nh3 Kg6 Nd2 Bc4 Nb3 Bg8 Bb5 Bh7 Qad4 Ng1 Qd1 Nf4 Qf3 Nge2 Rb4 Kf7 g6+ Kg7 g5 Qh5 Rb1 a1Q+ Rb2 Qa2 Qfg4 Qab1 Ra2 Qh4 Ra6 Qh5 Qd3 Qh4 Kf5 e5 Rba4 Qh5 Na5 e4 Qf3 Kf8 Qd5 Ke7 Qf7+ Kd6 Kf6 Qh4 Kg7 Ke5 Qe8+ Kf5 Kh8 Qg4 g7 Re6 g6 Qg5 g8B Rf6 g7 Rg6 Qf2 Kg4 Bf7 Ng1 Qe1 Kf3 Bg8 Kg2 Qe2+ Kh1 Qg4 Nge2 Qed7
2NR2n1/2RPPQ1K/1rk4P/2p1rrrB/P4r2/5Rq1/2qbp2B/3Q2Nq b - - 0 1 legal: proof: e4 d5 g4 Kd7 c4 h5 cxd5 hxg4 b4 a5 d6 Kc6 d7 axb4 d4 b6 d5+ Kb7 d6 Kc6 Bg2 Ba6 Bh3 Bc4 Bf1 Bd5 f3 e5 Qd2 Kc5 Qe2 Kd4 Qc2 Nc6 exd5 e4 Qd1+ Ke5 f4+ Kf5 Qd4 Ne5 Qd1 Kf6 fxe5+ Kg6 Kf2 Kf5 Ke3 c5 h4 g5 a4 b5 h5 b3 e6 Ke5 e7 f5 Bd2 b2 Rh3 f4+ Ke2 g3 Bg2 f3+ Ke3 g4 Na3 b1Q Qf1 f2 Bh1 b4 Bf3 b3 Bc1 g2 Qe2 f1R Qa6 b2 Nb5 g3 Na7 Qc7 d8Q Qc2 d7 b1R d6 Kd5 Kf4 Rb6 Kf5 Bh6 Kg6 Bd2 Nc8 Kc6 Rb1 Rh7 Be2 Rf5 Qc4 e3 Qf7 Rh8 Bg4 e2 h6 Raa6 Bh5 Qb8 Nf3 g1Q Rb5 Qh2 Ng1 g2 Rf3 Qh1 Bb2 Rh7 Be5 Qc7 Bh2 Re5+ Qf5 Rf7 Ra5 Rf8 Kh7 Rb4 Qg6 Rff5 Qf7 Rab6 Ra7 Rd4 Qde8 Rdf4 d8R+ Qd7 Qef8 Qc7 d7 Qb8 Qb3 Qd6 Qff7 Qc7 Nh3 g1R Rb7 Rgg4 Ng1 Rgg5 Qb1 Qd6 Qd1 Qdd3 Ra7 Qe3 Rb7 Qf2 Ra7 Qg3 Rc7+
2k1qN2/1pq2NPB/Q1R2qP1/1R1K2PQ/n4pPB/1Q5n/4r1n1/3nb1q1 b - - 0 1 illegal: Other
q2N4/qRn2n2/Bq3P2/3N1n1k/5P1p/p1n1P1qP/bQN1BQ1b/5K1R b - - 0 1 legal: proof: b4 b5 g4 c5 a4 f5 f4 fxg4 e3 Ba6 Ba3 Qc8 axb5 Bb7 b6 Qd8 b5 Bc8 Bb4 cxb4 Nf3 h5 Ke2 a5 Ng1 e5 Kd3 g5 Ke2 Ra7 Ke1 Rc7 f5 Rc4 Ke2 Rf4 Ke1 e4 exf4 e3 Ke2 Rh7 Kd3 e2 Ke3 Re7+ Kd3 Re3+ dxe3 Qe7 Kd2 Qd8 Ke1 Kf7 c4 d5 c5 h4 f6 Kg6 h3 d4 c6 a4 b7 d3 c7 d2+ Kf2 e1Q+ Kg2 b3 b6 a3 Qc2+ Kh5 Qd3 d1N Be2 b2 Nd2 b1Q Ndf3 g3 Nd4+ g4 Qb3 Ne7 Bc4 Na6 b8Q Qa5 b7 Nf5 Qc2 Be6 c8B Bb4 Nge2 Nc7 Rf1 Be1 Bb3 Qa7 Rf2 Nc3 Bc4 Qbb6 Kf1 Qf8 Ba6 Ba2 Rb1 Qe8 Rh2 Qe4 Rh1 g2+ Kg1 Qec6 Qb2 Qe8 Nc2 Bg3 Qa8 Qa4 b8N Bh2+ Kf2 g1N Qg2 g3+ Kf1 Qe4 Nc6 Nf3 Qf2 Ne5 Nd8 Nf7 Bd3 Qea8 Bca6 Nd1 Nc3 g2+ Ke2 g1Q Nd5 Qg4+ Kf1 Nc3 Be2 Qf3 Qa1 Qd4 Rb8 Qdb6 Rb7 Qg4 Qb2 Qf3 Bed3 Qg3 Be2+
5r2/1k1KB2R/3RrQ1b/3N1pP1/4n1BP/1nPp1q1P/b5Rp/1Nn2bQ1 b - - 0 1 illegal: No proof kernel
4Q3/PPb3p1/Q1n3Q1/PqR4P/p1n1B2N/brb4r/p3K3/kR2BNq1 b - - 0 1 illegal: No proof kernel
1Q1N2B1/pBP1pP1N/1bqr3q/1n1b1r2/QPR1p1q1/1b3N2/PK5k/3R4 b - - 0 1 legal: proof: e4 c5 d4 g5 h4 Nf6 hxg5 Ng8 dxc5 b5 c4 bxc4 Rh4 d5 Rf4 f6 Rh4 d4 Bf4 Nd7 Be5 Nb6 Rh1 Nd5 exd5 fxe5 Kd2 Kd7 Kc1 h5 b4 c3 g4 d3 f4 c2 g6 e4 c6+ Kd6 f5 Ke5 c7 Kf4 d6 Kg3 g7 d2+ Kb2 c1Q+ Kb3 h4 d7 h3 f6 h2 f7 Nh6 g8Q Bb7 g5 Qc6 g6 Qc8 d8N Nf5 g7 Rh5 Bd3 Nd6 Ba6 Rf5 Nf3 Nb5 Qc2 d1B Nc3 Rb8 Re1 h1Q Rc1 Qhh6 Kb2 Kh3 Qa4 Bb3 Rf1 Ba8 Nd5 Rb6 Rfd1 Q8d7 Ng5+ Kh2 Bb7 Qde6 Rc4 Qeg6 Nge6 Qg4 Ng5 Ra6 Qh8 Rb6 g8B Bg7+ Nf6 Ra6 Kc1 Rb6 Nh7 Bd4 Kb1 Ra6 Kc1 Bb6 Kb2 Qce6 Bc8 Bd5 Bb7 Qc6 Nf3+ Kh3 Re1 Bf2 Ne6 Qd7 Qg7 Rd6 Qf8 Bb6 Rd1 Qc6 Qb8 Kg3 Nd8 Kh3 Ng1+ Kh2 Nf3+
1q1B3r/rb2R2Q/1nP4Q/Bbp1Pp2/Np2B3/5NPb/2K2PR1/k4b1b b - - 0 1 legal: proof: h4 a5 b3 g5 b4 axb4 Nc3 gxh4 Nd5 Bh6 Rh3 Bg7 Rh1 Bf8 Nxe7 Ra6 c4 Ra7 c5 Ra8 d4 b5 d5 c6 Nf5 Bd6 Ne7 Bc7 Qa4 Bb6 cxb6 c5 Qd1 Nc6 dxc6 Ba6 Nc8 Bb7 Ne7 Bc8 Kd2 d5 e4 f5 a4 Kf7 b7 Kf6 b8B h5 g3 d4 a5 b3 a6 b2 a7 b1B Ra4 b4 Qc2 h3 Qa2 h4 Bd6 h2 Ra3 d3 Be2 h3 Bg4 Bb7 Nc8 Ne7 Bd1 Nd5 Nb6 Qb8 Na4 Nb6 Bf3 Bc2 Be7+ Ke5 Bd8 Kd4 e5 Bd1 Qf7 Be2 Be4 Bf1 Kd1 d2 Qh7 Bb5 Kc2 d1B+ Kb1 Bf3 Kc2 Bfe2 Bcg5 Bf1 Nf3+ Kc4 Rg1 h1B Bc7 h2 Bgd8 Bhg2 Ra2 Bh3 Rg2 h1B Ra1 Nc8 Ba5 Nb6 Rd1 Nc8 Rd7 Nb6 Kd2 Kb3 Re7 Ka2 Kc2 Ka1 Qh6 Qc7 Qh7 Rc8 a8Q Qb8 Qh6 Rc7 Qa7 Ba8 Qa6 Ra7 Qc8 Bb7 Qh7 Qd6 Qe6 Qb8 Qeh6
2n2K1n/1N3B1p/1b1N3n/Q3p2r/RR1rP1Q1/1P2PnBP/3p1n2/1N1k3r b - - 0 1 legal: proof: c4 f5 g4 fxg4 c5 b5 b3 Bb7 d3 Be4 dxe4 c6 Bg2 Qb6 cxb6 c5 Bf1 c4 b7 Na6 b8B c3 Bd6 Nb8 Bda3 Kd8 Bab2 cxb2 a4 Ke8 axb5 Na6 Ra3 Nb8 Ra5 Kd8 Ra1 Ke8 Kd2 Kf7 Kc3 Ke6 Kc4 Ke5 Kc5 g5 f3 d5 b6 a5 b7 d4 h3 g3 Qd3 a4 Qc3 a3 Rh2 a2 Bd2 g4 Qe3 g2 Rh1 d3 Na3 b1N Qf2 g3 Be1 Kf4 Qd4 d2 Nb5 Nc6 b8N Nh6 Nd7 Nc3 Nd6 Nd1 Qg7 Ke3 f4 e5 f5 Ra6 f6 Na7 f7 Nf2 Qg4 Nc8 Rc1 a1R Rc4 R6a4 Rb4 Rg8 Kd5 Rg5 Ke6 Rb1 Nc5 Rh5 Ncb7 Be7 f8Q Bd8 Qe8 Bb6 Qb5 Rba1 Qa5 Rc1 Nf3 g1N Nd4 g2 N4b5 Nf3 Na3 g1N Nb1 Nh4 Kf6 Rd1 Kg7 Ngf3 Kf8 Ng6+ Ke8 Nh8 Kf8 Nd3 Bg3 Re1 Bf4+ Kf2 e3 Rd1 Rg1 Ke1 Bg3+ Nf2 Rh1 Rc1 Rg1 Kd1 Bc4+ Kc2 Bf7 Rf1 Rb5 Rd4 Rb4 Re1 Rg2 Rh1 Rg1 Kd3 Rc1 Ke2 Rcc4 Ke1 Ra4 Kd1 Rcb4
6Qq/PQ2b3/1b3Rp1/1N1RrbP1/3p2P1/4pQK1/3r1P2/Nr1rrkBB b - - 0 1 legal: proof: g4 b5 d4 f5 c4 c5 dxc5 a5 e4 fxe4 b3 b4 g5 Nh6 h3 Ng4 hxg4 Na6 Nc3 Nc7 Nb1 Nb5 cxb5 a4 Qd5 axb3 Qd3 Rg8 Qd1 Rh8 a4 Kf7 c6 Ke6 c7 Ke5 b6 h5 b7 d5 b8Q d4 a5 e3 a6 Kf4 Bd3 e5 Qe2 h4 Ra2 e4 Qf1 b2 Qb6 h3 Bb5 b3 Qb7 h2 Bc6 Bf5 c8Q Be7 Qe2 Re8 Nd2 b1R Ra5 b2 Kf1 g6 Kg2 Ra1 Nb3 b1R Rd5 Ra2 a7 Rd2 Qd1 e2 Na1 e1B Ba3 e3 Bd6+ Ke4 Bc7 Kd3 Kg3 Rb8 Qf3 Rbd1 Qe6 Qc8 Ne2 Qd8 Rg1 h1R Nc3 Qc8 Nb5 Qd8 Qf4 Ke2 Qg8 Qc8 Rg2 Kf1 Qf3 Qd8 Qc8 Rb6 Qb7 Qc8 Rh2 Qb8 Bf4 Qe5 Rh7 Qh8 Na3 Rbb1 Nb5 Bc5 Bc7 Re5 Rf7 Bb6 Rf6 Rdb2 Qga8 Bb4 Qg8 Rbd2 Kf4 Qh2+ Qg3 Re6 Rd8 Qh8 Bg2+ Kg1 Qgf3 Be7 Rd5 Kh2 Bd6 Rhe1 Bh1 Kg1 Kg3 Qg7 Kh3 Kf1 Bh2 Re5 Kg3 Qh8 Bg1
1KNR4/Q2kNpB1/3p1rP1/1p2b1Pp/1b1n1qPP/2n3qB/5Q1b/1R4B1 b - - 0 1 illegal: No possible last move, all moves rejected
1b1Q1R2/1P2pr2/5p2/1r2P2q/KB3R2/1B1Pq1pp/QNq2k1P/NbqB4 b - - 0 1 legal: proof: b4 a5 c4 h5 a4 b5 c5 g5 c6 h4 g3 h3 Nc3 Nh6 Nb1 Nf5 axb5 axb4 Ra3 dxc6 Ra1 c5 Bg2 c4 Bf1 Nh4 gxh4 Nd7 f3 Nf6 f4 g4 Na3 Ne4 Nb1 Ng5 fxg5 Ra5 Ra3 Ra4 Ra1 Ra8 e4 Kd7 g6 Kd6 d3 Kc5 Kd2 Kd4 Kc2 c5 b6 g3 h5 c3 Kb3 c2 e5 f6 h6 Ra5 b7 Rb5 h7 c4+ Ka4 c3 g7 b3 g8B b2 Na3 b1Q Bb3 Qe8 Qe2 Be6 Bd2 c1Q Nc4 c2 Nb2 Qh5 Bb4 Qe3 Qg2 c1Q Be2 Bf7 Bed1 Bh6 Qd2 Rb8 h8Q Qbc2 Qc8 Be6 Qc7 Rf8 Qd8+ Bd5 Qg2 Rf7 Ra3 Qeg5 Nf3+ Ke3 Nd2 Bc4 Qgd5 Kf2 Re1 Qf4 Re4 Qff3 Qe6 Be3 Rf4 Ba7 Qdc8 Rb6 Ka5 Qh6 Ba2 Ke3 Nb3 Kf2 Na1 Qh5 Rc3 Bb3 Qcd7 Bd5 Rc8 Bb8 Rf8 Bc4 Qd8 Bb3 Bb1 Ba2 Qb3 Rb5+ Ka4 Qc8 Bbc2 Bb1 Qa2 Qc5 Rg4 Qfe3 Bb3 Q5c2 Rf4+
1B1q4/p1n3n1/qk1N2pP/2qRKQ2/1PR1pQPr/R3B3/2rqp2P/3N4 b - - 0 1 illegal: No proof kernel
7Q/4b1BP/B2pQnp1/KPN1p3/pP5r/q3pP1n/6bk/1q1NNRR1 b - - 0 1 legal: proof: d3 a5 d4 b5 e3 c6 e4 d6 e5 Kd7 Ke2 Ke6 Ke1 Kf5 e6 Ra7 Kd2 Rc7 Ke1 Rd7 exd7 Ke6 g4 h5 a4 hxg4 axb5 c5 dxc5 Kf6 Bd3 e5 Bf5 Ke7 Be6 fxe6 Kd2 Kf6 Kc3 Kf5 h4 g3 h5 a4 Kb4 g2 c4 g6 c6 e4 h6 e3 h7 Kf4 c7 Be7 c5 Bh4 c6 Bg5 Ka5 Qf6 d8N Nh6 b4 Ng4 Qd5 Qb2 Nf3 g1Q Ne1 Re8 f3 Kg3 Nc3 Nf2 Nb7 Nh3 Nd1 Nd7 Nc5 Qa3 Bb2 Be7 Bg7 Nf6 Qc4 e5 Qe6 Rf8 Rc1 Qf1 Rg1+ Kh2 Rb1 Bd7 c8Q Qfd3 Rc1 Qb1 c7 Rf7 Qh8 Bc8 Qf5 Be6 c8B Bc4 Ne4 Bf1 Qe6 Bg2 Ba6 Rf8 Rf1 Rc8 Rg1 Rc4 Nc5 Rg4 Rc2 Rf4 Rf2 Rh4 Rff1
1b1n1B2/2PBK3/1p1Q1r1P/1RNNp1p1/4N1b1/1P1Q3p/p1p3Pk/bqR5 b - - 0 1 illegal: No proof kernel
1qqb2Q1/3r1Rb1/1bR1q1r1/1B1NBb2/nb2P2R/1Q1PPn2/PN2r3/1k3K2 b - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 hxg4 b4 a5 f3 axb4 Bg2 e5 Bf1 e4 fxe4 Ra7 Bb2 Ra5 Bc1 Ra8 h4 Kd7 h5 Kd6 d3 Kc5 h6 Kd4 h7 f5 d6 c5 d7 b5 Kf2 g5 Bg2 g3+ Kf1 b3 Ba3 b4 Rh4 b2 Ke1 b3 Nd2 Kc3 Bf1 b1Q Bb4+ Kb2 Rh1 c4 Rh3 g2 Be7 f4 Rh1 f3 Rh6 c3 Rd6 c2 Rf6 c1B Rd6 g4 Rd5 g3 Bc5 Nc6 Bd6 Ra7 Rh5 Ne5 Bc7 Nf6 Rh6 Rg8 h8Q Nd5 Qh7 Nc3 Rb6 Na4 Rb4 Rg6 Nh3 g1B Rb6 g2 Rb4 Bd4 Ng5 g1B Rb7 Qe8 d8R Qc2 Rd5 Bdc5 Bh3 Bg7 Bd7 Bgd4 Bb5 Bf5 Bd7 Qe6 Rd6 Ba3 Bb8 Qc8 Nh3 Bac5 Bc6 Ba3 Rf7 Rd7 Qg8 Bdc5 Nf1 Bg5 e3 Bd8 Nd2 f2+ Ke2 f1R Nf4 Nf3 Nd5 Re1+ Kf2 Nb6 Ba4 Bcd4 Rc6 Baf8 Be5 Bc5 Bb5 Na4 Ba6 Bc3 Qe2 Kc2 Nc4+ Bd2 Qf1 b2 Qg1 b1Q Qg2 Qb6 Nb2 Qbb8 Bb5 Bb4 Rb1 Rh1 Ke2 Rh8 Rh1 Rh2 Kf1+ Kb1 Qd2 Bcb6 Qc3 Rd2 Qb3 Re2 Rh4
2rb1r1R/2Q4P/2b1k2r/Kb1N1QP1/5Pn1/2N1qB2/P1n1RBN1/4bbqq b - - 0 1 illegal: No proof kernel
b2N4/2qR2PN/n1QBr1n1/1r2PQ1n/4Pq2/1q1Bk2K/2P2bn1/2nR1bR1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 d4 e5 fxe5 cxd4 Kf2 Ke7 b4 Ke6 g4 Kd5 Kg2 Ke4 b6 f5 g5 d5 e3 a5 g6 h5 g7 a4 b5 f4 b7 h3+ Kh2 f3 b6 f2 Ra2 a3 Qd2 d3 Qc3 d4 Kg3 h4+ Kh2 d2 Qc4 d1Q Bd2 Bc5 Bb4 Ne7 Ne2 Qd2 Qa6 d3 Qa4 Ra6 Ng1 Ng6 Ra1 a2 Qd7 Qc7 Be2 f1Q Ba5 Qb4 Qf7 d2 Bd1 Qb3 Be2 d1N Nf3 Rd8 Qe8 Rd5 Rg1 Bd7 Na3 Bb5 Nc4 Bd4 Kh1 h2 Bb4 Rc5 Na5 Bd3 Qh8 Rb5 Qh5 Bc4 Nc6 Qf2 Ne1 Qf8 Kg2 h1B+ Kh2 h3 Nf3 Qff7 Kg3 h2 Nd8 Qf6 Kh3 Qf4 Qg4 Bc5 Nd4 Bd3 N4e6 Bf3 Nf8 h1N Qh5 Ng3 Qg5 Qd6 Nh7 Nh5 Bf1 Bh1 Qf5+ Kf3 Rb1 Qc7 Ne6 Kf2 Ba3 Bc6 e4 Ne3 Rd1 Ng2 Be2 Bd4 Bf1 Kf3 Bc5 Bf2 Nd8 Qe7 Ba3 Ke3 Bb4 Qc7 Be7 Nd7 b8Q Ba8 Qb7 Nc5 Be2 a1N Qd5 Qc3 Qd6 Nab3 b7 Qb8 Qd5 Re6 Qc6 Na6 Bd6 Nc1 Bf1 Qc8 b8R Qb3 Rb7 Qb8 Rd7 Qc7 Be2 Bc4 Bg4 Bf1 Be2 Ne7 Bc4 Ng6 Bd3
b3RbK1/1b1qRPn1/1Br3qQ/Nn2qq1q/1NP5/2P3nk/2N2Q1P/1B1r4 b - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 e5 b5 axb5 c4 d3 f6 dxc4 fxe5 Ke2 e4 Kd2 Qb6 Ke1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 Kh5 Ke5 Kh4 b4 d5 f4 a5 f5 g5 f6 e3 b6 e2 b7 e1Q+ Be2 d4 c3 d3 f7 d2 b5 g3 b6 a4 Qb3 d1B Ra3 g4 Ra2 g2 Qc2 a3 Qd2 g3 Qb2 Na6 b8N Qf2 b7 Rh6 Nc6 Nc7 b8Q Nb5 Qb6 Nf6 Qc7 Qd7 Qc2 Ne8 Bf4 Bb7 Bd3 Rd8 Bh7 Bf3 Bc1 Ng7 Rb2 a2 Qe2 a1Q Na5 Rc6 Nh3 g1Q Be3 g2 Na3 Qad1 Bb1 e6 Kf6 e5+ Qd6 e4 Bd4 e3 Nf4 Be4 Qc2 e2 Bb6 e1Q Qe6 Qc5 Nd5 Qh5 Nb4 Bd5 Qd6 Kh3 Qf2 Qe4 Ra2 Qge1 Rf1 g1N Nac2 Ne2 Ra1 Ng3 Rh1 Qed1 Re1 Q1g4 Ra2 Qg2 Re7 Qe2 Rb2 Qhe5+ Kg6 Qg1 Kh7 Q2h5+ Kg8 Qef5 Re2 Qe3 Qh6 Qee5 Na3 Ba8 Rbd2 Qg2 Nac2 Qge4 Re1 Qeg4 Rde2 Qgg6 Re4 Qee7 Rd4 Qb7 Ba7 Rf6 Qfe3 Bh1 Rf4 Rd1 Qf2 Qbd7 Bb6 Bhb7 Rfe4 Rc6 R1e3 Qec5 Re8 Qcd5 R3e6 Qde5 R6e7
1BN1K1Q1/1q2PPqP/1qRbB3/3r3n/5rb1/4rP2/R1b1kQn1/1bBN3b b - - 0 1 illegal: No proof kernel
k3bqrq/P2BQqn1/5bbP/K1Rn4/2PPbr1B/3R3N/2nBN3/2b1Q3 b - - 0 1 illegal: No proof kernel
r1n1bbB1/k1q1QRbb/2NN4/NP1P1nRQ/2b2r1B/2r2P1b/5bP1/K7 b - - 0 1 illegal: No proof kernel
1n2kq2/b5rR/7K/1P1Q1qnQ/1Pq1rN2/PQR1q3/3qPB2/1NqBrb2 b - - 0 1 illegal: No proof kernel
r4BKn/r6N/1QqnR1P1/5PRb/1PP2qB1/bn3N1n/3n1k2/Q2n2Nr b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 g4 a5 c4 d5 f4 e5 g5 d3 f6 h3 b6 d2 g6 Ke3 f7 a4 b7 d4 b3 e4 Nf3 h2 Bb2 d3 Ra3 Ra7 Be5 Na6 b8Q Kf2 Qb5 e3 Ng5 e2 Bf6 e1N Nf3 Qc7 Qb6+ Nc5 Be5 Nh6 Qb7 Ne4 Nc3 Bg4+ Kh4 Nd6 Kg5 Bh5 Ng1 Nf3+ Kf6 Qb8 Qb1 d1N f5 d2 Ra2 a3 Rb2 a2 Nb5 a1N Ke6 Be7 f8N Nhf7 Qa6 Rg8 Rc2 Nh8 Bg7 h6 Qb7 Qc7 Nh7 Rga8 Ra2 Qc6 Qb2 Qe4+ Qe5 Qf4 Bh3 Bf8 Bg4 Be7 Ne2 Bf8 Rg1 h1R Qb2 Rh4 Ned4 Ne3 Nf6 Ndf7 Qb6 Nf1 Nc3 N3g5+ Kd5 Ba3 b4 Nb3 Be2 d1N Bf8 Nd6 Qa1 Bg4 Nh7 h5 Rd2 Rh2 Rd3 h4 Re3 h3 Bf3 Ne8 Nce2 Bh5 Rg3 Nd6 Ng1 Nfd2 Re8 Nge4 Ke6 Ng5+ Kf6 Rh1 Be2 h2 Re6 Nh3 Rg5 Nb5 Bf3 Nd6 Nge2 Rf1 Bg4 Nhf7 Kg7 h1Q Kg8 Qc6 Qb1 Re1 Qa1 Rh1 Ng1 Nh8 Ndf3+
brn5/1R2P1B1/2Qr2n1/2Q3r1/1PNPPkR1/1N1qb3/nK2nr2/rb2N2B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 dxc4 b4 Ke7 g4 Ke6 b6 a5 g5 Kf5 e6 h5 g6 c5 b7 c3 e3 h3 g7 h2 d3 c2 Kd2 h4 Kc3 h3 Kb2 a4 Nf3 c4 Nc3 a3+ Ka2 Nd7 b8N Nb6 Rb1 Ra5 Nd5 c3 Nd7 Bc5 N5f6 Ne7 g8Q Ng6 Rg1 h1R e7 h2 Bd2 c1N+ Ka1 a2 Bg2 c2 Nfe5 Ne2 Qh7 c1N Kb2 a1R Ne8 Na2 Qa4 f6 Rgc1 Rd1 Bc3 h1B Nf3 Ba6 Qh4 Nc8 Qf2 Kg4 Qb5 f5 Bg7 f4 Ne1 f3 Qc6 Kf5 Qg1 f2 Nd6+ Kg5 Rc2 f1R Nc4 Rf2 Rc3 Ba7 Nc5 Kg4 Nb3 Rg5 Rbc1 Bb7 Rb1 Ba8 Bd5+ Bg2 Bf3+ Kg3 e4 Be3 Rbc1 Kf4 R3c2 Bf1 Bh1 Qd7 Rb1 Qh3 Rcc1 Rd8 Rc3 Rd6 d4 Rc1 Qh2+ Qg3 Qh5 Nh8 Qd7 Ra5 Bf8 Ng1+ Ncd2 Nb6 Bg2 Ng6 Nc2 Qg4 Rc7 Qd1 Rb7 Bd3 Bh1 Ne2 Bg7 Rc5 Qb5 Rc8 Qd7 Rb8 Qc5 Nc8 Nc4 Qd2 Qa4 Rg1 Qac6 Rg5 Rg1 Qd1 Ne1 Bb1 Rg3 Qd3 Rg4+
Qb1n3R/N2k2r1/5Bnn/2Pq1r2/RPB5/2qP3b/1Qn3PN/1bb1Rb1K b - - 0 1 illegal: No proof kernel
NbqR1R2/4Q1qN/5n2/Pq6/kP3Q1R/PbnrP3/n2B2nK/1n2q1rB b - - 0 1 illegal: No proof kernel
1n1B1bn1/1R3b2/2P1q2b/1P2n3/1N1nNrR1/K1k1Pr1Q/n1Bb1Pq1/2R4Q b - - 0 1 illegal: No proof kernel
r1q5/1B4PQ/qbR1n2b/6RK/n3P3/P1P1BNN1/1n3N1n/kbr1nb1Q b - - 0 1 illegal: No proof kernel
1qrbbr2/1n3P1K/R5R1/qPQ2P2/1P2rB1b/1N2bBr1/kn6/1b1Q1NB1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 Ke2 Kf7 Kd3 e5 Ke4 a5 b4 g5 h4 d5+ Kd3 e4+ Ke2 g3 f4 g4 c4 e3 Kd3 g2 f6 Ke6 c5 a4 h5 a3 h6 a2 f7 g3 c6 e2 c7 e1B h7 Bd7 c8Q Na6 Bd2 Be7 Qdc2 Nc5+ Ke2 d3+ Ke3 d4+ Kf3 Kd5 f5 Nh6 Kf4 Ng4 Qb8 Ne5 Ne2 g1B Qa4 Kc4 Qc8 g2 Rh6 Be8 Rb6 B1h4 Rh6 Rf8 Qa5 Kb3 h8B Nb7 Rd6 Nc4 Rc6 Nb2 Rf6 Be3+ Ke5 g1R Qc5 Rg3 Rg6 Rc8 Bg2 Qc7+ Ke6 Bd8 Bf3 Qb8 Bc1 d2 Qa8 d3 Bd4 Rg2 Ng3 d1R Nf1 d2 Qa6 Rg5 Qad6 Re1 Qd7 d1B Nbd2+ Ka3 Nb3 Bc2 Bd2 Bb1 Qdd5 Bc7 Kf6 Rg3+ Kg7 Bcd8 Qdd6 Bg1 Bf4 Re4 Kh7 Be3 Qdd5 Bc2 Rd1 a1Q Qd7 Ka2 Qdd6 Bd2 Bg1 Bb1 Rc1 Be3 Qd1 Qc7 Rc2 Qd6 Rd2 Qb8 Rdd6 Ka3 Nd4 Qa2 Nc2+ Kb3 Ra6 Qa5 Na1+ Ka2 Nb3
Q1n2Bn1/1n1PBbq1/KRR1qn2/2Pk1b2/P5N1/1Br5/3P1rbN/b2nQ3 b - - 0 1 illegal: No proof kernel
2Nrr2k/PPb1R2Q/1N3rR1/1q4Bq/2P1n3/nBN1q1r1/qQb2P1r/5K2 b - - 0 1 illegal: No proof kernel
2NB1q1r/1R1B2b1/2n2Rqr/2r1kb2/1PP3QP/2Q1Kn2/rP1n2q1/R3N1n1 b - - 0 1 legal: proof: g4 c5 e4 h5 d4 cxd4 a3 f5 exf5 hxg4 Bd3 b5 Bf1 b4 axb4 Rh5 Bg2 Rh3 Bf1 Rh8 Ke2 Kf7 c4 Kf6 f4 e5 h4 d5 Kd2 g5 Qe1 a5 Ra4 g3 Bg2 g4 Bh3 e4 Bg2 e3+ Ke2 d3+ Kf1 d2 Ke2 d1R Nh3 d4 Ng5 d3+ Kf1 e2+ Kg1 d2 Ra2 a4 Bd5 a3 Nf3 g2 Kf2 g1N Ke3 g3 Ra1 g2 Nc3 a2 Na4 Ra6 Bc6 Bg7 Nb6 Qf8 Bd7 Nc6 Qg3 e1N Qg4 Ra5 Rh3 Rc5 Rg3 Nd3 Ne1 Nde5 Rf3 Rh6 Rf2 Nef3 Rf1 Nge7 Rf2 Ncd4 Rf1 Nec6 Rf2 Kf7 f6 Nb3 f5 Rh8 Nd3 Rf1 Ne1 d1Q Re2 Qd5 Rd2 Bb7 Nc8 Qdd6 Rd3 Nbd2 Ra3 Qg3 Ra7 Ba6 Rb7 Bb5 Qh3 Qg6 Qg4 Ba4 Qf4 Bc2 Qg4 Nb1 Bd2 Rh6 Bc3 Nbd2 Be5 Rf2 Bc7 Be4 Bd8 Bd3 Rb1 a1R Rd1 Ra2 Ra1 Kg8 f7+ Kh8 f6 Bf5 Kf4 Re2 Qh5 Re8 Qg4 Qe7 f8Q+ Kh7 Qf7 Rh8 Qe8 Qf8 Qe3 Kg8 Qc3 Kf7 Be8+ Ke6 f7 Nh3+ Ke3 g1Q+ Ke2 Qg2+ Ke3 Ncd4 Bc6 Ke5 Bb5 Nhg1 Bd7 Qfd6 f8R Qb8 Qa3 Nc6 Rf6 Qd6 Qb3 Qf8 Qc3+
8/NR6/rBb2N2/r3rQb1/PPqQn1qb/P2Rqq2/1PNnB2K/1k4r1 b - - 0 1 illegal: Other
6rn/Q1Q5/B2pqn1K/1N1PR1RR/Pqb5/1rBP4/1bnkP1qN/b3r3 b - - 0 1 legal: proof: f4 a5 g4 e5 b4 h5 gxh5 exf4 d3 Qf6 c3 Qd4 cxd4 axb4 Kd2 Ke7 a4 Ke6 h4 Kd5 h6 c5 h7 f5 h5 b5 h6 g5 Rh5 f3 Ke3 c4 Rh4 c3 Nh3 g4 Kf4 f2 Kg5 d6 Bb2 c2 Ng1 c1B+ Nd2 g3 Nf3 g2 Rh3 g1Q+ Kh5 b3 Ng5 f4 Rg3 b4 Kg6 f3 Ba3 b2 Qc2 b1N Kh5 b3 Bc5 b2 Nb3 Qg2 Ne6 Nf6+ Kg6 Ba6 Ng7 Na3 Rb1 Bc4 Nd2 Nbd7 Nf5 Rb8 Rg5 Bg7 Ba7 Qh3 Bg2 Rhg8 h8R f1Q h7 Rb3 Qc3 Qf2 Nf1 Nc2 Nh2 Qf1 Bh1 Qfg2 Bc5 f2 Bb6 Bb5 Qc7 f1R Bc5 Bc4 Ba7 Rc8 Re8 Qg4 h8Q Re1 Qh7 Rcb8 Ra1 b1Q Bb6 Bh8 Kh6 Bb2 Qa7 Nf8 Qhc7 Qa2 Rb1 Ng6 Re3 Ba6 Rh3 Ba1 Rhh5 Rg8 Rb2 Bc4 Bc5 Ra3 Rb5 Rb3 Ra5 Q4e4 Rb5 Qa3 Ra5 Qb4 Rb5 Qe7 Bb6+ Ke6 Re5+ Kf7 d5 Qh3 Qc6 Ne8 Bf3 Kf6 Re3 Qg2 Bg4 Qee4 Bc5 Ke5 Nd4+ Kf4 Bc8 Qe6 Nb5 Bhb2 Ba6 Nf6 Ree5 Nh8 Qcc7 Qe4 Nd4 Ke3 Nb5+ Kd2 Bd4 Qg2 Bc3+
2q1k3/3br1R1/P1P1qb1B/NQPrQ1P1/n7/p2RN2n/2r2nBq/1Kb3Q1 b - - 0 1 illegal: No proof kernel
n6N/5PKp/1R4B1/1Qq2qP1/bQ1Nr2r/nr1bbqBk/P3P3/2B1n2R b - - 0 1 illegal: No proof kernel
KBR5/P1b1qp2/q4r1r/5PnP/1rP1k1Nn/1N1b3b/1QBRn3/2Bq1Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 d5 exd5 c5 d4 cxd4 Ke2 Kd7 Kf3 Kd6 Ke4 e5 c4 g5 h4 b5 a4 g4 f4 b3 h6 b2 h5 d3 h7 g3 a5 d2 a6 g2 Qc2 d1Q Nd2 b1B Ba3+ b4 Bd3 Nd7 Bb2 b3 Ra2 Nh6 Rh2 Qf6 Ra1 Nf5 Ra3 Nh4 Bc1 b2 Ngf3 g1N Nb3 Ne2 a7 Rb8 Ra5 Rb6 Rc5 Bh6 Qc3 Nf8 Qe1 Bh3 f5 Ne6 Rc8 Bf4 Qf1 Bc2 Rf2 b1R Nh2 Bg3 Ng4 Ng5+ Ke3 e4 Rh2 Re8 h8Q Re6 Qg7 Qa1 Qb2 Rh6 Rf2 Qa6 Rg2 Nc3 Kd4 e3 Rd2 e2 Be4 e1Q Bd3 Kd7 Kc5 Rbf6 d6 Qe7 Be4 Ne2 Bd3 Qa2 Kb6 Bf4 Kb7 Qa6+ Ka8 Bh2 Rb8 Kc6 d7 Bc7 d8B Kd6 Be4+ Bd3 Rc8 Ra1 Bg2 Ra4 Be4 Rb4 Na1 Bb6 Bc7+ Kc5 Bb8+ Bc7 Bc6 Kd6 Ba4 Kc5 Bc2 Kd6 Qa3 Kc5 Qb3 Kd4 Qb2+ Ke4 Nb3
8/rkP5/1NQPprPB/2nR1Qn1/1Rb2n1b/1n1r4/b1BP2nK/2q3NR b - - 0 1 illegal: No proof kernel
2r5/k4bK1/2NnB1R1/qb3bPP/1b1R3R/rP4b1/Q2NpqP1/B2n2rQ b - - 0 1 illegal: No proof kernel
B1Qq4/r1Nkq3/Bb5p/BR5P/3P1R2/nnq2PQP/1N2n1K1/4rnbn b - - 0 1 legal: proof: c4 a5 h4 f5 b4 axb4 e4 d5 cxd5 fxe4 Nh3 Bg4 Ng1 Bh3 gxh3 Ra7 Bd3 Ra5 Bf1 Ra8 a4 e5 d4 g5 d6 b5 h5 c5 f3 e3 a5 g4 a6 g3 a7 e4 Bb2 g2 Bc1 e2 Kf2 b3 Ra4 b2 Be3 b4 Ra1 h6 Na3 b1N Qd3 c4 Bg5 b3 Bc1 b2 Nc2 e3+ Kg3 e1Q+ Kh2 c3 Ra4 e2 Na1 c2 Bg5 c1N Ra6 Na3 Qg6+ Kd7 Nc2 b1N Ne3 Nf6 Nd1 Qc3 Nb2 e1Q Bd2 Nc6 Ne2 g1B+ Kg2 Ne4 Qg3 Nf2 Nf4 Na5 Nd5 Qee7 Nc7 Nab3 Rb6 Ne2 Rb5 Rh7 Rh2 Rc8 a8B Nh1 Rf5 Rb8 Rf4 Rb7 Be1 Ra7 Bd2 Rf7 Be1 Rf6 Bd2 Re6 Be1 Nec1 Ba6 Ne2 Bd2 Qc1 Ba5 Qc3 Kf1 Re5 Rf2 N1d2+ Kg2 Re6 Rf1 Re3 Rb1 Nf1 Na4 Nbc1 Rb5 Nb3 Nb2 Nec1 B8b7 Re1 Ba8 Ne2 B6b7 Qde8 Rc5 Qf6 Na6 Ke6 d7 Qh8 Rb5 Bc5 d8Q Qe7 Qb8 Qhd8 Nc7+ Kd7 Ba6 Bb6 Qc8+
K1Rq4/N1Bnkb2/3Pr2P/2b1p2B/qb1Q2b1/1QPN3n/n1rbR2P/6N1 b - - 0 1 illegal: No possible last move, all moves rejected
2b1n1B1/NqN5/2Rpr2P/1rB2R1P/r3QnbK/N1PP3Q/3r3n/1r1k2q1 b - - 0 1 legal: proof: f4 e5 b4 exf4 g4 c5 Ba3 cxb4 Bc1 h5 gxh5 b5 a3 b3 Bg2 b2 Bf1 b4 Nh3 b3 Ng1 Bb4 axb4 Qe7 Ra4 Qf6 Ra1 Qd8 Kf2 Ke7 h4 Kf6 e4 Ke5 b5 Kd4 d3 f5 e5 g5 b6 a5 b7 f3 Kg3 f4+ Kg4 a4 h6 d6+ e6 f2 h5 f3 Ra2 a3 Kg3 g4 e7 Na6 e8N Qd7 b8Q Nc7 Qe2 Ra4 Qe6 Nf6 Qb7 Nfd5 Be2 f1N+ Kh4 g3 Qh3 g2 Nc3 b1R Qa8 f2 Bf4 b2 Bd2 Nf4 Qaf3 Nh2 Bd1 f1B Qa8 Be2 Qe4+ Kc5 Ra1 a2 Nf3 g1Q Ne1 Bg4 Nb5 Rh7 Ba5 Re7 Na7 Re6 Bf3 Rd1 Rc1 b1R Bg2 a1R Bb4+ Kb6 Ba3 Ka5 Bc5 Rb5 Bf3 Rab1 Bg2 Qe3 Rf1 Qg1 Bf3 Rd2 Rf2 Ncd5 Nc7 Nf6 Bh1 Ne8 Rf1 Ne2 Rf5 Qc6 c3 Qa6 Nc2 Nf4 Na3 Qb7 Re1 Rd4 Rc1 Ka4 Rc2 Kb3 Ra2 Rc4 Ra1 Kb2 Bf3 Kc1 Bd1 Rg6 Bb3 Ra4 Bg8 Kd1 Ra2 Re6 Rb2 Rba5 Rb6 Rab5 Rc6
R5B1/2Q5/2P2P2/qn2Bn1P/1nk1pq2/n3r1br/1Pb2NNr/1n1Q1KNR b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 g4 cxd4 a4 h5 axb5 hxg4 h4 Kf7 f4 g5 c4 e5 f6 Ke6 b6 a5 c5 Kd5 f5 a4 b7 g3 f7 g2 f6 d3 c6 g4 Qd2 g3 Qb4 a3 Bh6 a2 Bc1 d2+ Ke2 d1N Na3 Nc3+ Ke1 Na6 b8Q Ne7 Be3 Qa5 Rh2 Nb5 Bd3 Nf5 Rh3 Bd6 Qd2 Nb4 Rc1 a1N f8N Nac2+ Ke2 e4 Ng6 Ba6 Nb1 Nca3 Nf3 g1Q Rh2 g2 Qb7 Bg3 Rh1 Qh2 Qd1 g1R+ Bf2 d6 Qc7 Rg2 Kf1 Ra7 Bc2+ Kc4 Nf4 d5 Nc3 d4 Ra1 d3 Ng1 d2 Bd4 Re2 Bb1 Re3 Ng2 Raa8 Bc2 Rh5 Be5 Rah8 Nce2 R5h7 Nef4 Rh6 Nfh3 Rh5 Qg4 d1N Nf2 Ndc3 Qd1 Ncb1 Ba4 Qh3 Ra2 Qg4 Ra1 Qf4 Bb3+ Kc5 Be6 R5h6 Bc8 Kc4 Bd7 Bc8 Be8 Be6 Bg6 Bf7 Bh7 Bh5 Qdd8 Bd1 Ra2 Bc2 Qd1 Rd8 Ra1 Rdd3 Ra2 Rg6 h5 Rg4 Qe2 Rh4 Qd1 Rh2 Nh4 Rf3 Ng6 Bh4 Ne7 Qb6 Nd5 Rfh3 Ne7 Bg3 Ng6 Re3 Ra1 Kb3 Nh4 Nc4 Ra5 Nca3 Ng2 Kc4 Ra8 Qa5 Bg8+
rn4k1/3Rb2n/Bp1B1n2/3r3n/4nq1N/P1NqPQ1b/2PPq1RQ/5QK1 b - - 0 1 illegal: No proof kernel
K2B2n1/Q4QP1/1rPbq3/1k3b1p/1q2qQP1/4P1bR/2NRN1n1/r2bbB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 bxa4 d4 e5 fxe5 cxd4 Kd2 f5 Kd3 d5 c4 Kd7 g4 Kc6 b4 h5 e6 a5 e3 a3 e7 f4 e8Q+ Qd7 c5 a4 g6 f3 g7 f2 Bh3 f1Q+ Ne2 a2 Qe7 a3 Qf7 Qg2 Qc2 Qe6 Ng3 Kb5 c6 Nd7 Qe2 Nb6 Qd1 Bd6 Rh2 Qge4+ Kd2 d3 Kc3 d2 Qdf3 d1Q Bb2 Qa4 Q3f4 Ra6 Ne2 d4+ Kd2 d3 Kc3 d2 Bf1 Qa5 Rh3 Nd5+ Kb3 Bd7 Bf6 Rb6 Bd8 Bc8 Qa7 Bd7 Qf7 Nf4+ Kc3 Qf3 Kd4 d1B Bc7 Ng2 Bd8 Ka4 b5 Bg3 Kc5 Qfe4 Nd2 Be1 Rb1 a1B Nb3 Be5 Rb2 a2 Rd2 a1B Nbd4 B5g3 Nc2 Bae5 Qf2 Qa2 Qf4 Bf5 Qf7 Bb2 Kd6 Qab4+ Kc7 Bf6 Rh1 Be7 Rh3 Rb8 b6 Kb5 b7 Qae6 Rd4 Ra8 Rd2 Ra6 Kb8 Rb6 Ka8 Bd6 b8Q Rh6 Qe7 Rf6 Qba7 Rf7 Qeg5 Rfb7 Qf2 Ra6 Qff4 Ra1 Qf6 Rb6 Qf7
n1K1Q3/3B1P2/3Nr1Rn/1bn1BqrQ/2RPrpNN/1Pb5/r1q4P/2k4r b - - 0 1 illegal: No proof kernel
Q1n1n1Rq/2R1PB2/P1n1bPRP/Q6q/3n1Br1/Nkb3r1/1q1p4/n2K3N b - - 0 1 illegal: No proof kernel
1q4N1/3bPkb1/P3p2Q/1rnbqPQK/6BQ/7R/1qqrR1Pn/1qB3N1 b - - 0 1 illegal: No proof kernel
q4q1n/1R1P1rrb/R2Qn3/2r4B/1KPR1BQ1/PNp1Pk2/2b1N2r/4r1b1 b - - 0 1 illegal: No possible last move, all moves rejected
K6R/1P6/3brpNr/2BQ2bP/b3nB1r/1B2nNr1/Pq4RP/1qkr1Q2 b - - 0 1 illegal: No proof kernel
1Nb1Qq2/P1n3kn/2p1b3/2P1n1Qr/NP2R3/BrQqb2R/1nP5/BK3n2 b - - 0 1 illegal: No proof kernel
2b1rB2/1Qnr1Bn1/8/R3pb2/r1NPP3/1qb1rnN1/1P1QR2P/1K1Q1qk1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 g5 c4 d5 cxd5 gxf4 d4 Kd7 Kd2 Kd6 Kc2 c5 b6 a5 b7 f5 e3 e5 Qe2 f3 Nd2 c4 Ra2 c3 Qg2 f4 Nb3 f2 Nd2 a4 Bb5 f1B Be2 g3 Bg4 f3 Nh3 a3 Bf5 f2 Bd7 Bd3+ Kb3 f1Q Bb5 c2 Qf3 g2 Nb1 g1N Qe4 Ra7 Qf3 Nf6 Qh5 Ne8 Nf2 Ng7 Nd2 Qb6 Qd1 Na6 b8Q+ Nc7 Qb7 Bdf5 Ra1 Nf3 Ka2 Be7 Bc4 Re8 Rg1 Bh4 Nh1 Be1 Rg2 Qb4 Ng3 Qb5 Nb1 Bc3 Re2 Qb4 Bd2 c1R Be1 Rc2 Nd2 Qb3+ Kb1 Nb5 Qa8 Rd7 Qb7 Nc7 Ra2 Ke7 e4 Kf6 d6 Kg5 Be6 Kg4 Nc4 Kh3 Bf7 Rd2 Ra1 Rd3 Bd2 Re3 Bc1 Rd3 Bh6 Re3 Ra2 Nh5 Bf8 Ng7 Re1 Kg2 Re2+ Kg1 Ra1 Rde7 d7 a2+ Kc1 Nb5 d8Q Rd7 Qg5 Nc7 Qh6 Rd3 Qd2 Re3 Rb1 Qb6 Kc2 a1R Rc1 Ra6 Ra1 Ra4 Kb1 Qb3 Ra3 Rb4 Ra7 Ra4 Ra5
1Q2N2q/B7/1Bn1R3/1q1P3p/2PP1qkN/r1PBb1rn/1Qr1b3/3bK1Rr b - - 0 1 illegal: No proof kernel
k2B2n1/3q2bB/R1N1bNn1/1P6/Pq3RQQ/r1n3r1/npP1Pb1K/1q3N2 b - - 0 1 illegal: No proof kernel
qb5B/kB1QR1q1/b4R2/P3qN2/RN1r2rp/3b1P2/PPQnn1n1/1n1K4 b - - 0 1 illegal: No proof kernel
q5Nb/4Rq1N/1bPkBQ2/2R3br/n2KP3/2p1nQrP/1Q3BP1/1b3n1q b - - 0 1 illegal: No proof kernel
1qRqrN2/3qk3/Pb4K1/n1P1PBPr/b7/6B1/N1nRr1pQ/Qq1n1B2 b - - 0 1 illegal: No proof kernel
K2b3Q/2N2q1B/P3R1n1/pb1R2r1/3bq1r1/5nkP/P1nQBP1q/Rn1N4 b - - 0 1 illegal: Other
1q1qb1r1/3N3P/2bQb1Pr/2nn1R2/1nKPqkpR/bNP4Q/2B5/B5Q1 b - - 0 1 illegal: No proof kernel
1Q4r1/2K1bnBP/3RRP1N/3Br1q1/2Pp4/1bnQ1R2/bN2P1q1/2k1br1q b - - 0 1 illegal: No proof kernel
2Qb4/2k3Np/5PrP/N2r1B2/1n1r4/q1B1KR1P/nn2PrR1/bB1b1qQ1 b - - 0 1 illegal: No proof kernel
q3nQn1/k2b1P1R/B3r1RB/2n1NN1p/1NP4b/1PrPr3/2Q4K/2r1bq2 b - - 0 1 illegal: No proof kernel
B1rQ1qbq/2r1BP1P/1P6/npP1B1q1/R3n3/4QN2/kb2n2r/n1RNK3 b - - 0 1 illegal: No proof kernel
Rb3N1n/3P1P2/R1B4K/1r1nP2n/B5bp/1PNr4/4r1Qq/qQBn2kb b - - 0 1 illegal: No proof kernel
3R4/1Np1QP1P/2n1Nn2/r3Pb2/n2b1NPK/2B3RB/3qnr1k/n3Qn1r b - - 0 1 illegal: No proof kernel
rNnBN2R/P1b1k2P/1bP1B1Q1/b1n1P2q/2K4b/1r3rQp/bR6/2b2B2 b - - 0 1 illegal: No possible last move, all moves rejected
2bb2Qr/1q4N1/1B1PN1b1/2Np1RPr/1nRn4/2KBb2P/Q2nPnb1/2k5 b - - 0 1 illegal: No proof kernel
N1n3Q1/b7/NrPq3n/3p2BK/RrnbqB2/R1nP1B1P/2n2P1k/3n1Q2 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 e5 hxg4 e6 Ba6 bxc5 b4 a4 Bb5 axb5 fxe6 Ke2 e5 Ke1 e4 Ke2 Kf7 c4 Kf6 c6 Kg5 d3+ Kh4 b6 g5 c7 d5 c8Q e5 c5 a5 c6 a4 b7 a3 Qd2 e3 Qb2 b3 Qd4 e4 Qb4 a2 Qd7 b2 Qf7 g3 Qa5 g2 Qc3 g4 Qb4 g3 Qf5 Nd7 b8B Nb6 Qe5 Bc5 Qe1 Qd6 Na3 b1N Nc4 Ra4 Qd1 Nc3+ Ke1 e2 Be3 Nc8 Nh3 g1N Na5 g2 Qe8 Rb4 Qf7 Ba7 Nb7 Nh6 Nc5 Kg4 Qc1 Nd1 Na6 Rh7 Kd2 e1N Bg5 Ngf3+ Ke2 e3 Qg8 Nd2 Nf4 Nc4 Ne6 Kh3 Nec7 Nc2 Kf3 e2 Na8 e1Q Be2 Rhb7 Rf1 R7b6 Rh1 Qe6 Kf4 g1N Bf3 Qd7 Be5 Qd6 Qb1 Nf7 Kf5 Qe3 Bef4 Ne2 Rg1 Nec3 Rg4 Qde7 Kg6 Nh6 Qc1 Q3e4+ Kh5 Q7e5 Rb1 a1B Rb3 Qd6 Ra3 Na4 Qb1 Bd4 Qc1 Nac3 Qb1 Nde3 Qf1+ Ng2 Qf8 Ne5 Nb8 Qf5 Nd7 R4b5 Qc1 Nge3 Qg8 Bc5 Bg3 Rb2 Rc4 Bd4 Nb8 Qe4 Rca4 R2b4 Na6 N5c4 Qe1 Ned1 B3f4 Bb8 Bg4+ Kg2 h3 Ba7 Qe2 Kh1 Bf3+ Kg1 Bc1 Kh2 Qf1 Qb8 Bce3 Qd6 Bef4+
K3nqr1/4b1NQ/PRP1PB2/Br4N1/b3p1R1/b1P1b2B/3r3Q/1n2r1rk b - - 0 1 illegal: No proof kernel
b1QB1r1B/b1R1nR1p/3qPN1P/b2Q1Qn1/2P2P1k/2b4n/3rnb1N/7K b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 e6 g4 fxg4 Bg2 Ba6 Bf3 Bc8 Bd5 exd5 Kf1 Ke7 Kg2 Kf6 c4 g5 h4 a5 e4 d4 b4 d5 c6 a4 f3 d3 c7 g3 h5 a3 b6 a2 b7 d2 h6 g4 e5+ Kg5 b5 d4 e6 d3 b6 Na6 b8Q Bb4 b7 Ne7 Qa7 Qd6 b8B Rf8 Qf2 Ba5 Nc3 Nc5 Nh3+ Kh4 f4 Ne4 Nd5 Bb7 c8Q Ng5 Qc2 d1N Qb3 d2 Qd3 Nc3 Bc7 d1N Bd8 Ne2 Qfc5 Nf2 Ng1+ Nfh3 Bb2 Bc6 Rb1 a1B Bh8 B1c3 Rb7 Rb8 Rd7 Rb2 Qf5 Rd2 Rc7 Ba8 Rh2 Qc6 Kh1 Qd6 Rf2 g2+ Kh2 Kh5 Nf3 g1B+ Kh1 g3 Nh2 Kh4 Rg2 Be3 Nf6 Bf2 Qcd5 Ba7 Rg1 Bf2 Rb1 Ba7 Nf1 Bf2 Rbb7 g2+ Kh2 g1B+ Kh1 Ba7 Nh2 Bge3 Qg2 Bf2 Qgd5 Ng6 Rf7 Ne7 Rc7
1Rr1Bn1K/3Q1P2/q1rp2Pk/B3rN2/2rbn1R1/5rqP/rQb1PN2/3Q4 b - - 0 1 illegal: No proof kernel
1Bnrn3/1K1nPR2/N3pP2/4Rb1q/1RQ3rn/4r1Q1/P2k1Pr1/2NB1nb1 b - - 0 1 illegal: No proof kernel
2nn3N/2Q1p3/2P5/R1RB1nb1/3PbPQ1/n1Nkrb1R/6Pr/K1Bn1b1q b - - 0 1 illegal: No proof kernel
1q6/k1PBQ1rn/nnrB1nN1/1nPb3P/n3p3/N4B2/3R1PKR/1q4bQ b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 axb4 h4 b5 a4 e5 c4 d5 h5 Kd7 f6 Kc6 a5 Kb7 c6+ Ka7 f7 g5 c7 g3 a6 e4 c5 g4 Qb3 g2 Ra2 d4 Be3 g3 Rh4 d3 Bf4 d2+ Ke2 d1N Qc3 b3 Nd2 b2 Be3 b1N Bd4 b4 Ke1 b3 Rg4 b2 Be2 Rh6 Be3 Bd6 f8Q Bb7 Qe7 Nf6 Bd4 Bd5 Qf7 Na3 Qa5 b1Q Bc3 Nb5 Ngf3 g1N Kf1 Nh3 Be5 Ng5 Nc4 Ngh7 Qe1 Nb2 Na3 Na4 Nh4 Nb6 Bf3 g2+ Kg1 Rg6 Qe7 Rg7 Ng6 Qc8 Kh2 g1N Rg2 Ne2 Qh1 Nec3 Rd2 Nca4 Kg3 Qh8 Rh2 Qc8 Kg2 Qd8 Bd4 Bf4 Be5 Qf8 Rh4 Bh2 Bd6 Bg1 Rh3 Nc6 Rh4 Nb4 Rh2 Re8 Qf7 Re6 Qe7 Ka8 a7 Na6 Rd3 Kb7 a8B+ Ka7 Bc6 Qa8 Bd7 Qb8 Bg3 Rd6 Rd2 Rc6 Bd6
2bQK1B1/N1R1B1N1/3rb3/2bpPQn1/1P3BrP/2k5/1RnP4/1nb1rq1r b - - 0 1 illegal: Other
5kNr/3pRbPn/bn1rPb1B/Nr2R2r/3NQ1BP/1n2n1KQ/2q4P/8 b - - 0 1 illegal: No possible last move
n1KN1R2/P1P5/n1R5/B2pbQPk/1n2Qr2/2r2rNn/1r2b2P/BB2bq2 b - - 0 1 illegal: No proof kernel
qrn1q1b1/BB3k2/3P1QR1/2p2qP1/3Pb3/b2qP1R1/n1rQNN1K/1b4B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 a5 g4 f5 Kg2 h5 b4 f3+ Kh2 f2 d4 h3 e3 f4 b6 h4 b5 a4 b7 a3 b6 a2 g5 f3 Qc2 Nc6 b8Q Ba3 b7 Nge7 d6 Bf5 Qb2 Kf7 Qa7 Qe8 b8B Nc8 Bg2 f1Q Ne2 f2 Bd2 Nb4 Nbc3 Bb1 Qa6 c5 Ba7 Rb8 Nf4 Qd3 Nd1 f1Q Ne6 Qff5 Bb7 Rh5 Nf4 Rh7 Kg1 h2+ Kg2 Rh8 Ne2 h3+ Kg3 Rh6 Be1 Rh5 Rf1 h1B Kh2 Be4 Nf2 Rh4 Qd2 Rf4 Kg3 h2 Qc6 h1B Kh2 Bhf3 Rg1 Bd5 Rg3 Bfe4 Qb6 Rg4 Qd8 Bc4 Nh1 Rf4 Bf2 Rf3 Bg1 Rf1 Bf2 Rc1 Bg1 Rc2 Nf2 Kg7 Rh3 Bg8 Rh6 Kf7 Rg6 Bb2 Bb6 Rc1 Ba6 Bc2 Rb1 a1Q Bb7 Qa8 Ba7 Ba3 Ra1 Bb3 Rb1 Rc4 Rf1 Bc2 Nh3 Na2 Rf3 Rc3 Rg3 Bb1 Nf2 Rc2 Qf6+
5q2/n1nQ1Rp1/2B1Nqbk/1q3rP1/3Pn1K1/2bB4/1Pn1PBQr/1R1N3q b - - 0 1 illegal: No possible last move, all moves rejected
Nq1b4/1rn1PQqR/1PKPR2n/k2P3r/N6r/4QB2/1N5p/r1bb2Bb b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 Kf2 Kd7 Kf3 f5 e4 c5 b4 Kc7 g4 Kb6 d4 a5 e5 h5 g5 a4 d6 c4 d5 a3 e6 h3 g6 h4 g7 c3 Ne2 c2 Qd3 a2 Rg1 h2 Nbc3 h1B+ Bg2 h3 Nd1 h2 Re1 Rh4 Nec3 Ra7 Nb2 Nh6 g8Q Be7 Qf7 Na6 Qd2 Rb7 Qe3+ Nc5 Rb1 a1R Bd2 c1B Nca4+ Ka7 b6+ Ka6 Kf2 f3 Bc3 f4 Bd4 Bg5 b5+ Ka5 Re2 Na6 Bc5 Rb8 b7 Nc7 b6 Qd7 Re1 Bd8 e7 Qg4 Rg1 Qg7 Rf1 Bd2 Rbe1 Bg4 Rg1 Bc1 Rgf1 Ra8 b8N Ra7 Na6 Rb7 Bd4 Bf5 Bc5 Bc2 Bd4 Bd1 Bc5 Ne8 Nc7 Rh5 Na8 Nc7 Rg1 Rh4 Kf1 f2 Bf3 Bb3 Ke2 f1R Kd3 Bd1 Kc4 Rf2 Be4 f3 Rg5 Re2 Rh5 f2 Bd4 f1Q Kc5 Rf2 Kc6 Rf5 Bf3 Qa6 Re2 Qa7 Re1 Qb8 Bc5 Ng8 Rh7 Rg5 Qe4 Rf5 Bg1 Rfh5 Qd3 Nh6 Re6 Qa7 Qa3 Qb8 Qe3
1Q3n2/Nrnbr1Bp/rnR5/1qr2R1n/3Q2P1/4NP2/2r2PBP/q2QK2k b - - 0 1 illegal: No proof kernel
3R4/bk1pb3/2b5/1n3P1r/1Pq1N1R1/B1q1QK2/qPNPr2Q/1rRqb2B b - - 0 1 illegal: No proof kernel forced: bxDB
2qq2qn/1RR1Nk2/p3P1nQ/3r1pP1/bB1r1Rn1/1PB2P2/Q5K1/N4rb1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Kf1 h5 g4 f5 b3 c5 e4 c4 g5 c3 e5 h3 f3 a6 b6 d4 b7 h4 Ra3 d3 Ne2 h2 Ng1 c2 Ra2 d2 Ne2 h3 Bb2 c1Q Ba3 Rh4 Kf2 Nh6 Nd4+ Kf7 Nc6 Rd4 Qc2 d1R Ne7 Nc6 b8R Rf1+ Kg3 Bb7 Bb4 Bc8 Rg1 h1Q Ra4 h2 Na3 Ra7 Qa2 Rc7 Ng6 Ne7 Rb7 Rc5 Nc2 Rcd5 Na1 Qc4 Rg2 Qg1 Kh3 h1N Rc2 Qf2 Rc1 Qfc2 Bc3 Nf2+ Kg2 Qc6 Bb4 Q2c4 Rc2 Nfg4 Rc3 Qdc7 d8Q Bd7 Rc1 Qa5 Qb6 Qc8 Rc2 Bc6 d7 Bb5 Qd6 Qad8 Bc3 Bc6 Rab4 Ba4 Qc6 Qdc7 d8B Qd6 Ba5 Qdd7 Nf4 Ng6 Rc1 Bc5 Rc2 Nh8 Ng6 Ng8 Ne7 Qdd8 Qh6 Bb6 Rc7 Ba7 Rbb7 Bc5 Bab4 Bb6 Nc6+ Ne7 Rc1 Qdd7 Re1 Neg6 Re4 Qg8 Ne7 Qdd8 Rf4 Qc5 Rd7 Qcc8 Rbc7 Rd3 Rb7 Bg1 Rdc7 R3d4 e6+
b1kqRn1b/1Qnb2p1/1P2q2p/B2B2rN/6R1/1P1PB1K1/P4r1r/3Q1qN1 b - - 0 1 illegal: Other
1N2r2n/R1n1P1qb/1br1PN2/QB2p3/1K1kN1P1/1R1P2p1/3Bn2r/1Qq1b3 b - - 0 1 illegal: No proof kernel
2bR3n/QN1Pb3/2b1P3/2Rp1B1P/1n1q2r1/P1pnBRqk/1r2Q3/2r1N2K b - - 0 1 illegal: No proof kernel
nK2k3/RRP1b2r/2N3qp/2nP1n1P/1Q2q2B/b1r3P1/p1r4q/1Q2N1BB b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 d4 c5 f4 gxf4 Qf3 Bb7 Qd3 cxd4 Qd1 d3 Kd2 d4 Ke1 Bd5 exd5 Qd7 Ra5 Qc7 Ra1 Qd8 Kd2 f5 h4 e5 b4 a5 c4 h6 g3 e4 h5 e3+ Ke1 d2+ Ke2 f3+ Kd3 e2 c5 e1B Kc4 f4 b6 a4 Kb5 f2 b7 d3 c6 a3 c7 a2 Kb6 f3 b5 Ne7 Ne2 Nf5 Rg1 Qh4 Na3 Na6 b8B Be7 Kb7 Qe4 b6 Rh7 Qb3 d1Q Qc3 d2 Bg2 f1Q Nd4 f2 Bh1 Qfd3 Rb1 f1N Qb4 Q1c2 Ba7 d1R Bg5 Rc1 Nc6 N1e3 Bh4 Qh2 Nc2 Nc4 Rb3 Bf2 Ra3 Bfc5 Ne1 Rc2 Qb1 Bcd6 Ra5 Ba3 Rg2 Rc3 Rb2 Rd8 Rb3 Rd6 Rb4 Nc5+ Kb8 Qdc2 b7 Nb6 Ra6 Na8 Rb2 Nb3 Bg1 Nc5 Ra7 Rg6 Kc8 Rg4 b8Q Rf4 Qb4 Rf2 Kb8 Qcd3 Qd4 Rfc2 Rbb7 Qa6 Qdb4 Qb6 Nd8 Qg6 Nc6
1KB1b2Q/1p2RPB1/1PbrN3/2n5/qP1bnQNp/q6r/2k1B2P/4qRn1 b - - 0 1 legal: proof: b4 f5 d4 e5 g4 fxg4 c4 d5 cxd5 Qd7 a4 Qb5 axb5 exd4 Kd2 Ke7 Kd3 Kf6 Kc4 Kf5 f4 Ke4 e3 h5 d6 c5 b6 a5 Kb5 g5 d7 a4 d8Q a3 f5 d3 f6 g3 f7 c4 Bd2 c3 Bh3 c2 Qc1 g2 Qb2 c1Q Bd7 g4 Qh4 a2 Ne2 g1N Bc3 d2 Nd4 Kd3 e4 d1B e5 g3 e6 g2 e7 Bf3 e8B Bg7 Na3 Bc6+ Kc5 Nf6 Kd6 Na6 Bh3 Nc5 Kc7 B8d7 Nc4 Nfe4 Ne3 Rd8 Ne6 Bd4 Qf4 Qe1 Rc1 a1Q Ng4 Qa3 Rc2 Qd1 Re2 Qda4 Qa1 Rh6 Re1 Kc2 Re3 Bc8 Kb8 Rd6 Re1 B8d7 Rf1 Bf2 Bg7 Bd4 Re1 Ne2 Rhf1 g1Q Qf6 Qgg3 Qf4 Ng1 Re3 Bb5 Ree1 Bdc6 Bd7 Rh8+ Bc8 Rh7 Re3 Qe1 Bg2 Be8 Bf3 Bbc6 Be2 h4 Be5 Rg7 Bf6 Rg6 Bg7 Rf6 Qe5 Rf3 Qf4 Bf6 Qae5 Rh3 Qh5 Bc3 Qh8 Bd4 Nc7 Ng3 Re7 Nge4 Ne6
qk1bq3/p1q1rrb1/2Q1rBNN/1nb1Q1R1/3RRPP1/P4p1n/1P6/1BK5 b - - 0 1 illegal: No proof kernel
1n6/rRKb3P/PQQ5/4p1bB/1prqNPk1/R1N4n/1PBn1n2/bn5B b - - 0 1 illegal: No proof kernel
2k4B/5P1B/1qr1Pp2/1np2Rn1/n1n3b1/1PQ5/r2RrP1R/1b1QNKNn b - - 0 1 illegal: No proof kernel
2b4b/3rPn1B/2P2Rbk/3Q1Q1N/1KR1N2r/n1P1bqp1/1p2Pn2/R3b1B1 b - - 0 1 illegal: No proof kernel
1rBbbRb1/1PP2p2/3B1BPQ/3K1bbP/k1n1r3/N3N3/1p3Qn1/R4nq1 b - - 0 1 illegal: No proof kernel
n3B1RN/1p2qr2/1P2B3/n1B3b1/K1nPnN2/Prb1p1Rb/7P/1nQQk3 b - - 0 1 illegal: No possible last move, all moves rejected
2r2Q2/kp2pr2/nb3n1N/bP2Q1BQ/1N3K2/1qPbPn2/b3R1bP/1B2R3 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 g5 f4 Qb6 fxg5 Qa6 Nh3 Qxa4 Ng1 Qa2 Kf2 Kd8 Kf3 Kc7 b4 Kb6 b5 f5 h6 a5 h7 d5 e3 a4 g6 a3 g7 f4 Qd3 Be6 Bh3 Na6 Qd2 d3 Bf1 d4 Qb4 d2 Qb2 d1B+ Be2 d3 Ke4 f3 Qb4 f2 Kf3 f1N Nh3 d2 Qe4 Qb3 Nf2 a2 Na3 Nf6 g8Q Ka7 Bb2 Rc8 Ng4 Bg7 Qf8 Bg8 Rb1 a1B Kf4 Be6 Bc4 Be2 Bd3 d1B Qe5 Nd2 Nh6 Nf3 Re1 Bc4 Bg6 Bed3 Re2 Rg8 h8Q Bf7 Bc1 Bc3 Bb2 Ba5 Bc3 Bfc4 Be1 Be6 c3 Bh3 Nc2 Bg2 Nb4 B1c2 Rb2 Bb1 Bh4 Ba2 Qh7 Bh8 Rb1 Rg7 Bg5 Rf7 Rbe1 Nd7+ Qf5 Bd4 Qhh8 Bc5 Qe5 Nf6 Qh3 Bcb6 Qh5 Bc4 Bc2 Bd3 Bb1
1N2n1R1/Pb1R1B2/2Q1PP2/PR2Bq2/K2np3/Q1p4n/2r1nk2/r1Nnb2b b - - 0 1 illegal: No proof kernel
1bB1b3/5Q2/4r3/rp1n1NNK/1P2Q1P1/2nkP1b1/Rp1P2qn/b1Q1BRr1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 a4 c4 dxc4 Qb3 axb3 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5+ e6 Kd4 a4 b5 g3 f5+ Kh5 c5 g6 c3 a5 c2 e7 c4 e8Q f4 g4 f3 g7 c3 a6 f2 a7 Nf6+ Kh4 h5 g8Q Qd5 Ba3 c1B Qee6 c2 Qg5 Ne4 Qc6 Rh6 Rh2 Na6 Qg8 Nc7 Qf7 Bd7 Qh7 Bb2 Rg2 c1B Nc3 Be8 Qf7 Bd6 Nh3 Re6 Ra2 Ba1 Rg1 Bcb2 Bg2 f1N e3+ Kd3 Ne2 Bbe5 Bb2 Bf4 Bh8 b2 Qc1 Nc3 Bf6 Bfe5 Kg5 h4 Kh5 Bh2+ Be5 Qe4 Ng5 h3 Bg3 Qd5 Be1 Bhg3 Ra6 h2 Ra2 Qf3 Nd4 h1R+ Nh3 Qe4 Nf5 Nh2 Rf1 Rg1 Ng5 Qb7 Bc6 Bdf4 Bd7 Qg2 Bc8 N7d5 Ba6 Rd8 Bb7 Rdd6 Bc8 Ra6 Nd6 Ra5 Nf5 Bb8 a8Q Nc7 Qf3 N7d5 Qe4+
1nN2n1b/1k1q2r1/4RP2/Q2p1Q1P/1p1PPbrb/R4Kn1/2BBn1N1/4B1r1 b - - 0 1 illegal: No proof kernel
qbrRr3/2n1bn1p/P1QN3P/P4PN1/3KBr1k/p1BQQ3/1Rrb4/5n2 b - - 0 1 illegal: No proof kernel
r1Q2RB1/4P1Nn/1P3p1p/PN2BK1b/r1b3QP/k2n2r1/1R4n1/1Q1q1nb1 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 g5 f4 gxf4 b4 b5 cxb5 axb4 Kd2 Ke7 Kd3 c5 Ke4 d5+ Kd3 f3 a4 f6 h4 b3 g4 h6 e4 c4+ Kd4 f2 g5 b2 g6 c3 b6 c2 g7 Ba6 a5 Bc4 e6 Kd6 e7 Nd7 e8Q Ne7 g8Q Ng6 Nc3 b1R Qh7 Rg8 Ra2 Rb4 Bb2 c1N Nf3 Nf4 Rg1 Ra4 Ng5 Ng2 Ne6 Rg3 Ng7 Nd3 e5+ Kc6 Be2 f1N e6 Be7 Qeg8 Nf8 Nb5 Qd7 Qhh8 Nh7 Qb1 Ba3 e7 Bc5+ Kc3 Be3 Bg4 Kc5 Be6 Qd8 Ba1 Qd7 Rb2 d4+ Kc2 Ndf4 Bd5 d3+ Kc3 d2 Qe6 d1B Qc8+ Qc6 Qg4 Nd3 Bg8 Bf2 Qge6 Bh5 Qg4 Nge3 Rg2 Bg1 Rgd2 Ng2 Kc2 Ne5 Rd8 Nd3 Rf8 Bh2 Qb7 Qf3 Kc3 Qd1 Qa6 Kc6 Kd4 Bg1+ Ke4 Kc5 Kf5 Qc1 Rf2 Qd1 Bb2 Kb4 Qc8 Kb3 Be5+ Nb2 Na7 Ka3 Rc2 Nd3 Re2 Nh2 Rb2 Nf1 Nb5+
r1r2b1B/QRPPPBb1/3pB3/1rn5/2n1b3/pn2P3/3kq1N1/R1rNQ2K b - - 0 1 illegal: No proof kernel
rRN5/Pn1K2Rk/p1n1R3/b2b1nBb/3Pp3/4P1r1/1rN2P2/QBrQ1q2 b - - 0 1 illegal: No proof kernel
8/PnPr1Rbn/2K1QRPQ/b2B1pq1/1r1N1P1k/1p2N1n1/2N2r2/2rbB3 b - - 0 1 illegal: No possible last move, all moves rejected
1K4b1/P1P2R1p/RP2Qn1r/B2Q2k1/1nPpB1bb/4qr1n/2rn1N2/N5B1 b - - 0 1 illegal: No proof kernel
r2nq1rr/bBk3B1/2BRNrp1/n3Q1p1/7P/4P2q/1N1PP1r1/2KbQ1R1 b - - 0 1 legal: proof: c4 a5 g4 e5 b4 axb4 g5 d5 cxd5 h6 Nf3 e4 Ng1 e3 fxe3 hxg5 h4 Kd7 a4 f5 a5 b5 d6 c5 a6 f4 a7 b3 Nf3 b2 Ra3 b4 Ra5 b3 Ra2 c4 Na3 b1R Nb5 g6 Qc2 c3 Kd1 b2 Rh2 Nc6 Ra5 Qe8 Ra4 Nge7 Nfd4 f3 Rf2 Nd8 Bg2 Nec6 Ne6 Na5 Rf1 f2 Na3 Ba6 Rf4 Bb5 Nc4 Ba4 Rg1 Be7 Qb3 f1R+ Kc2 Rg8 Rd4 Rf6 Bb7 Ra1 Kd1 b1Q Nb2 Qf5 Rd3 Rb8 a8B Qh3 Kc2 Ra2 Kb1 Bf8 Qd1 Rc8 Qe1 Bd1 Bg2 Ra4 Bab7 Ra8 Rd5 Rg4 Bc6+ Kc8 d7+ Kb8 Bb7 Bc5 Rd6 Ba7 Bgc6 Rh8 Nc4 Rg8 Bb2 c2+ Kc1 Rg3 Be5 Rg2 Nb2 Rh8 Nc5 Kc7 Bc3 Rf4 Bg7 Rf6 Ne6+ Kb6 Qg3 Nf7 Bb5+ Nc6 Rd4 Na5 Qe1 Qc8 d8Q+ Qc7 Qd6+ Qc6 Qdg3 Qd7 Nd3 Qd8 Kb2 c1R Bd7 Rcc8 Bdc6 Qd7 Rd5 Rcg8 Qe5 Nd8 Kc1 Qe7 Rd6 Qe8 Nef4 Kc7 Nb2 Qg4 Qe6 Qg3 Qe5 Qh3 Ne6+
Qb2B3/1bk5/1nRqPb2/2q2rbK/NNQ1PB1P/b4p1P/3Np3/1r1Rn3 b - - 0 1 illegal: No possible last move
r3B1QR/1bBK1R2/3p1NNr/P1pP1r2/5qr1/Pq4k1/n2QPN1n/r2b4 b - - 0 1 legal: proof: h4 b5 f4 g5 b4 gxh4 f5 a5 f6 exf6 c3 f5 bxa5 f4 Rh3 b4 Rh2 b3 Rh1 Bb4 cxb4 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 f5+ Kd4 c5+ Kc4 Ke5 Kb5 h5 g4 f3 a3 Kf4 d4+ Kg3 g5 f2 d5 b2 g6 h3 g7 h4 Bh6 d6 Nc3 b1B Bd2 f4 Ra2 f3 Qe1 h2 Nd1 h3 Ra1 Bc2 Bg5 Nc6 Qd2 Rh4 Rb1 Nf6 g8N Qf8 Rb2 Ng4 Bd8 Qe8 Nf6 Qe3 Kb6 Qc3 b5 Nb4 Kc7 Na2 b6 Qb4 Bg2 f1R b7 f2 b8Q Qa4 Rb5 Qb3 Nf3 Ba6 Ne5 Bc8 Rg1 h1R Rb7 h2 Ra7 Ba6 Kc6 Bc8 Re7 Bb7+ Kd7 Qd3 Bc7 Qb3 Nc3 Ra1 Qg8 f1Q Nd1 Qff3 Nf2 Qf4 Re1 Bd1 Bf3 Qh6 Nh3 Rf1 Rh7 Rf2 Rh1 Rf1 Be4 Rf4 Bg6 Rf5 Be8 Qf4 Re1 h1R Rf7 Rhh5 Ng6 Rhg5 Nf2 Rh8 Rh1 Rh7 Rh6 Nh2 Rh5 Rg4 Rg5 Rh4 Rh5 Rh3 Rhh7 Rh6 Rh8
b1bn3k/Q4N1P/N1R2Br1/KPPNb1n1/3rP1p1/1B1p3q/7b/bR1Q1q2 b - - 0 1 illegal: No possible last move
n5q1/Bb1P1q1p/1N1K1bQ1/QPn3N1/3R3P/1bb2k2/1Prr2p1/B1RbB3 b - - 0 1 illegal: Other
1q1r1BNq/P5QB/N2N2r1/2b2n1P/1n2bpPP/3p1R1Q/q7/q1kqR2K b - - 0 1 illegal: No proof kernel
N6r/6qb/n2n1R1Q/B2P1nq1/1n1rNp1b/1P1pPP1k/1Q6/B3RrQK b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 g5 h4 gxh4 e3 d5 cxd5 e4 d4 Kd7 Bc4 Ke8 Bd3 exd3 Kf1 Ke7 g4 Kf6 Kg2 Kg5 b3 a5 b6 h5 b7 f5 f3 c5 d6 a4 d5 h3+ Kh2 Kh4 g5 a3 d7 c4 g6 a2 g7 c3 Qc2 f4 Qd1 c2 Ne2 Ne7 g8Q Nf5 Qdg1 Be7 Q8g6 Nd6 Nd2 Na6 Bb2 c1N Rb1 a1Q b8B Na2 Qf1 N2b4 Kg1 h2+ Kg2 Qg8 d8Q Bf5 Bc7 Bf6 Rg1 h1N Nc4 Ng3 Qh6 Bh7 Ba5 Qg5 Nc3 Ngf5+ Kh1 Be7 Qc1 Kh3 Qg8 h4 Ne4 Rc8 Nb6 Rc4 Bg7 Rd4 Na8 Qc3 Be5 Bf6 Rg4 Qc7 Qc3 Qcg7 Qb2 Q5g6 Qc8 Rc4 Qa1 Be7 Bc3 Rd4 Kg1 Qh5 Rg6 Bd8 Ng5+ Kg3 Qa2 h3 Ba1 Kh4 Qc1 h2+ Kg2 h1R Ne4 Bg5 Rf6 Rd1 Kh2 Rg1 Qg2 Re1 Qg1 Rf1 Kh1 Kh3 Qc2 Bh4 Qb2 Qhg5 Re1
1rn2bNK/3n4/1N4P1/rb1rpRp1/1P1BQQ2/Prq1B3/1nq1P3/k2RR3 b - - 0 1 illegal: No proof kernel
3B3q/1b2N2r/1K4pP/QnQ3Pb/1p1P1Pbn/2B2k1R/n2R2N1/B1q3br b - - 0 1 illegal: No proof kernel
b1RNQ1r1/bb1Nr3/3pR1qP/2r5/Q5PP/3P2kR/1BnB2p1/b2Kn1q1 b - - 0 1 illegal: No proof kernel
bq2Q2Q/n2N1r2/1P1B1R2/2rrp1n1/1NkP1p1Q/2q2Pb1/P1R2n2/1BK1n3 b - - 0 1 legal: proof: e4 a5 c4 d5 g4 h5 gxh5 dxe4 b4 b5 cxb5 axb4 h4 Kd7 d4 Kd6 Kd2 Kd5 h6 f5 h5 g5 f3 c5 b6 c4 h7 c3+ Kc2 g4 h6 e3 Bg2 e2 Nh3 e1N+ Kb3 g3 Rf1 c2 Kb2 b3 Ng5 Ra5 Bd2 c1R Bh3 g2 Rg1 Bb7 Bg4 Nc6 Be3 Ba8 Bh3 Nf6 Nc3+ Kc4 Ne6 Rd5 Bf4 Na7 Nc5 Qb8 Nd7 Ne4 Bd6 Nf2 Rh1 f4 Bf5 g1N Bb1 e5 Rh4 Rg8 h8Q Be7 h7 Rg7 Rh6 Bh4 Rf6 Rf7 Qe8 Ngh3 h8Q Ng5 Qc2 Bg3 Qch7 Qc8 Qh4 Qb8 Nb5 Rc3 Nc7 Rc1 Na6 Rc2+ Ka3 b2 Nb4 Rc1 Bf5 Rc2 Rc1 b1Q Bg6 Qa1 Be4 Kb5 Kb3 Rc6 Rc2 Rcc5 Bh7 Qc1 Bg6 Qe3+ Kb2 Qc3+ Kc1 Kc4 Bf5 Kb5 Be4 Qb3 Rc3 Qc4 Bb1 Qd3 Rc2 Qc3 Qh1 Kc4 Q1h4
1BR2KN1/2nr4/BpQ1Pk2/4R2p/q1r2bqr/1r1BnP1b/1PP5/1Q1qN3 b - - 0 1 illegal: No proof kernel
nQ1qR3/5b1P/n1Q1NrRB/1p1q1n1P/2prnNBb/1kP5/1P5r/6KN b - - 0 1 legal: proof: d4 e5 dxe5 f5 e4 fxe4 g4 h5 gxh5 Qh4 Nh3 Qg5 Ng1 Qd8 a4 Nc6 a5 Nb4 a6 Nxa6 Qf3 Nb4 Qd1 Na2 h4 Ke7 f4 Ke6 Kf2 b5 c3 d5 h6 c5 h7 a5 Be2 g5 Qa4 d4 f5+ Kd5 e6 g4 e7 g3+ Kf1 g2+ Kf2 d3 e8Q d2 Qe7 d1R Qg7 e3+ Kf3 Nb4 Qh6 Rd4 Qa3 a4 Kg3 Be6 Kh2 Ra6 Nd2 Ne7 Ra2 Bf7 Ne4 Rf6 Nd2 Nc8 Bd3 e2 Qg7 e1N Qh6 Nec2 Nf1 Ne3 Ne2 g1N Nfg3 Nh3 Re1 Nb6 Nh1 Nf2 Kg1 Na8 Qf4 Na6 Qb8 Be7 Nf4+ Kc6 Qb3 a3 Qc4 Ne4 Be2 Qd5 Ra1 a2 Bg4 Bd8 Rb1 a1Q Re2 Qa5 h5 Re8 Rg2 Be7 Bd2 Qad8 Re1 Rg8 Qc8+ Kb6 Qb8+ Ka5 Bc1 Qe5 Qd5 Ka4 Qc6 c4 Ree2 Kb3 Rg3 Rh6 f6 Nf5 Bd2 Qed5 Rgg2 Be6 f7 Bh4 f8N Bf7 N8e6 Rf8 Bf3 Rf6 Rg6 Re8 Bg4 Re7 Nh3 Rd7 Bh6 Rd2 Re1 Rh2 Re2 Qe5 Nhf4 Rd4 Re1 Qed5 Ng7 Ng5 Re8 Ne4 Nge6
1N1q1nR1/kR3B1p/P2Pr3/Pq1n3b/Nr2P2B/Q1Qp1n2/1B1b1Kb1/2n5 b - - 0 1 illegal: No proof kernel
n4QRR/B1Q3PN/pbb1PPKp/2q1r3/N4q2/1n6/N2kqP2/r2Bnn2 b - - 0 1 illegal: No proof kernel
r2b1Q1K/1q3kp1/r4P2/p2R1N2/1qb1bB2/PNP1Qr2/n1QRnP2/b4B2 b - - 0 1 legal: proof: Nf3 c5 Nc3 d5 Ng1 c4 Nb1 c3 bxc3 d4 Ba3 d3 Bb2 Kd7 Bc1 Ke8 e4 dxc2 g4 f5 exf5 h5 Be2 hxg4 Ba6 Qd6 Bf1 Qd8 Ke2 b5 Ke3 a5 Kf4 e5+ Ke4 g3 d4 g2 h4 b4 h5 b3 a3 b2 h6 Ne7 d5 Kf7 h7 Qd6 f6 Be6 Qd4 Nf5 Be3 c1B Bb5 Na6 Rh6 Qb4 d6 Be7 d7 Bd8 Nf3 g1R Bf1 Bc4 Rh5 Rg3 Nh4 Rf3 Nd2 b1B+ Qd3 Rf8 h8Q Nd4 Qh7 Bb2 Nf5 Ne2 Ra2 Ba1 Nb3 Re8 Rb2 Re6 Bf4 Rc6 Qh6 Qb7 Qh7 Nb4 Rd2 Na2 Qh6 Qb4 Qc2 Rca6 Rg5 Bb5+ Kd5 e4 Ke5 e3 Rh5 Bb6 d8Q Bc4 Qd6 Bd8 Qc5 Nec1 Qh8 e2 Qe3 e1Q Qg8+ Kg6 Qf8 Ne2 Ke4 Qb7+ Ke5 Bb6 Kd6 Bc7+ Ke7 Bd8+ Ke8 Qb4 Qfe7 Qc1 Kf8 Qb2 Q7c5 Bb5 Kg8 Bc4+ Kh8 Kf7 Ng3 Qb7 Rhd5 Qb4 Nf5 Qb7 Qc1 Be4 Qc2 Qb1 Nc1 Q1b5 Nb3 Qb4 Qf8+
nB1RB1K1/r1bqp3/N6N/4R3/1b1q2P1/5Qrp/P2NqqPP/n2n1Q1k b - - 0 1 illegal: No possible last move, all moves rejected
Q1q1Bb2/N2Prr2/pbb3PQ/R3R2p/3r2qn/b4P1P/nB2K2k/2N4R b - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b5 a4 f5 axb5 fxe4 Qf3 g4 Kd1 g3 Qe3 Kf7 f3 Ke8 Qf2 gxf2 d4 Kf7 g4 Kg6 b4 h5 b6 c5 h3 e5 g5 Kf5 d6 c4 d5 a6 g6 e3 b5 Kf4 d7 Kg3 b7 e4 d6 e2+ Kd2 e1B+ Ke3 c3 b6 c2 Bb2 c1B+ Ke2 e3 Bd4 Ne7 Ra3 Rh7 Rb3 Nf5 Bb2 Ba5 Rb4 Rf7 Nc3 Nh4 Nb5 Nc6 b8Q Bb7 Ra4 Nb4 Na7 Qc8 d8Q Bc6 b7 Bb6 Ra5 Na2 Qg5+ Qg4 Qe8 Rd8 b8R Rdd7 Qh6 Rd8 Ba1 Ba3 Bb2 Rdd7 Rb7 Rde7 d7 Re4 Qa8 Rd4 Bg2 f1R Re5 Rfd1 Bf1 Re4 Ra5 Ree7 Rc7 Rd4 Rc8 Be4 Rcc5 Bc6 Re5 Nb4 Ke1 Na2 Bc4 e2 Bd5 Rc4 Kd2 e1Q+ Kd3 Qb1+ Ke2 Qc1 Be6 Rd4 Bc4 Rf5 Bf7 Qc5 Be8 Rff7 Ke3 Kg2 Ne2 Qc4 Nc1 Qc5 Rf1 Kh2 Ke2 Qd6 Ke1 Qb8 Ke2 Qc8 Rh1+
2Rq1NBB/R2PPbbB/K4n1q/1r1P4/nNQ2n2/P1Qp2k1/1p6/b1b1r3 b - - 0 1 illegal: No proof kernel
R1bQQ3/3PpPK1/5r1R/2rqPq1Q/N2k1Pnr/nrB1N3/1b2Bp2/1b6 b - - 0 1 illegal: No proof kernel
1N4N1/rn1pbQ2/8/3q1rP1/RP1pn3/qkbP4/2PBqRqQ/RKb2B2 b - - 0 1 illegal: Other
K1bk1n2/B2pqR1p/P2P1nr1/2P4q/RN2N3/4B1b1/1qPQb3/Q2rq1N1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 bxc5 a6 Bb5 axb5 Ke2 e5 Kd3 b4 Kc4 b6 Kb5 e4 d4 e3 g4 e2 a4 e1Q f4 b3 a5 b2 d5 h3 g5 h2 g6 Qdh4 f6 Qg4 f5 Bh6 a6 Nc6 g7 Rb8 f7+ Kd8 f8B Nf6 g8N Ne5 Nc3 Qh5 Ne4 Bf4 Qd2 Bg3 Ne7 Rg8 Ra4 Rg6 d6 b1B Nd5 Ba2 Nb4 Bd5 Bh6 Qh4 Be3 Qg5 Nc3 Bf3 Ne4 Qh5 Bb2 Rb7 Bc3 Be2+ Nd3 Qh4 Ba5 Rb8 Nf3 Rb7 Rf1 h1Q Ng1 Qg5 Rf3 Qhh5 Rf2 Ng8 Rf4 Qe7 f6 Rb8 f7 Nf6 f8Q+ Ne8 Qg7 Nf6 Bc3 Rb7 Kb4 b5 Ka5 b4 Rf3 b3 Nb4 b2 Rf5 Nfg4 Rf7 b1Q Qf6 Qb2 Qf1 Ra7 Kb6 Ra8 Qf6 Rb8+ Ka7 Rb5 Qf1 Nf6 Ka8 Rb7 Na2 Rb3 Bb4 Rd3 Ba5+ Ke8 Bc7 Rd5 Bb8 Kd8 Ba7 Rd4 Qc3 Rd1 Qf2 Rg7 Qf4 Ng6 Nb4 Nf8 Qa3 Rg8 Qa1 Rg6 Qg5 Qh6 Qd5 Qh5 Qd2
1n5R/1N1pP1b1/1R1bb2Q/K1Bpb2P/5PNR/nqr1Q1rB/4kqP1/4q3 b - - 0 1 illegal: No proof kernel
4N2K/1P1qrQRR/5pP1/NB2bqQn/b1P1k2p/2r2P1q/Q2nB3/4b2b b - - 0 1 legal: proof: d4 b5 Kd2 g5 a4 e5 axb5 exd4 h3 c5 h4 c4 hxg5 c3+ Kd3 Ke7 Bf4 Ke8 Bd2 cxd2 Ke4 Ke7 Ke5 d5 c4 h5 b4 a5 e4 d3 g4 a4 b6 a3 b7 d4 b5 a2 b6 Nf6 g6 Na6 b8Q Bb7 g7 Nc5 g8Q Rh7 g5 Ra3 g6 Qc8 Qc2 d1B Be2 d2 Nc3 d3 Nf3 Nb3 Nd4 Qh3 Ncb5 Bd5 Rb1 a1B Nd6 Kd7 Ne8 Bb4 Qa2 h4 Re1 Ba5 b7 Bc2 Rbd1 Nh5 Qc8+ Ke7 Qg4 B5c3 Kf5 f6 e5 Kd7 Nc6 Re7 Qf7 Bh1 Na5 Bb4 Nc7 Bb2 e6+ Kd6 Ne8+ Kc5 Qb1 Be5 Qa2 Qe3 Qg5 Kd4 Ra1 d1Q Rb1 Qdd2 Rbd1 Qc1 Kg4 Nd2 Kf5 Rc7 e7 Ba4 Ke6 Qb2 Qf8 Ke4 Kf7 Qc1 Kg8 Qc2 Kh8 Rc3 Qf7 Qh3 Nd6+ Kd4 e8B Re7 Bb5 Qb1 Ne8 Ke4 Qg1 Nf3 Qg5 d2 Rc1 d1Q Rc2 Bed6 Rd2 Be5 Rd7 Qd5 Rd1 Qde6 R1d5 Nd2 Rc5 Qef5 Rcc7 Qd1 Qf8 Re6 Rg7 Re7 Rh7 Re6 Rcg7 Re7 Bf1 Qdg4 Be2 Qd7 Qg8 Qgf5 Qf7 Rc2 Qb3 Nf3 Rg8 Be1 Qa2 Rc3 Rgg7 Nd2 f3+
K2BnrR1/bp3N1k/rP5P/rbbP4/1RP1B3/3p2qq/nQ3N1Q/2Q4b b - - 0 1 illegal: No proof kernel
3k4/n1Q2br1/P1qrRR1N/1B1pQ3/bB3bn1/2b1P1Pb/3Pp3/3Nb1NK b - - 0 1 illegal: No proof kernel
3K1Q2/2NbP3/2R2nRb/3rRP2/2qP4/BbbQnBnP/p1pk2n1/1r5N b - - 0 1 illegal: No proof kernel
1K1nB1Q1/2P4r/r3p1k1/4q3/pn2P1Pq/1RBr2R1/N2nPB1Q/Nn1b1n2 b - - 0 1 illegal: No possible last move, all moves rejected
q5B1/4B2P/1Pp1n3/bNrrr3/b1r3RQ/PqP2K2/QRNp3k/4r1qN b - - 0 1 illegal: No proof kernel
3K1b1Q/4P3/R1N2q2/5NQb/qbr2Np1/PR1Pq1P1/n2prB2/1q1Bkr2 b - - 0 1 illegal: No proof kernel
N6q/1N2Br1p/2nKP2Q/RPnP1pQ1/3qbrBP/q1n1n1Br/1Rk5/8 b - - 0 1 legal: proof: f4 b5 c4 f5 a4 d5 axb5 dxc4 g3 e6 g4 Be7 g5 Bf6 gxf6 e5 Qb3 exf4 Qa4 Kd7 Qd1 Ke8 Kf2 Kf7 Kf3 Ke6 h4 Kd5 d4 a5 b4 c5 b6 g5 b7 c3 b5 Kc4 f7 a4 f8Q a3 Qe1 Kb3 e4 g4+ Ke2 c2 Kd3 f3 e5 c4+ Ke3 f2 Kf4 a2 e6 c3 Ke5 g3 Ba3 c1Q Qd2 g2 Qdh6 c2 Qg6 Ne7 Bd6 Nd5 Qfg7 Nc3 Rh2 Ra4 Ne2 g1Q Nf4 Qa3 Nd3 c1R Q6h6 Rf8 Qgg5 Kc2 Be2 f1N Be7 Rf7 Nc5 Ne3 Nd2 Qh8+ Kd6 Nc6 b8B Bb7 Bg4 Rf1 Rg2 Rf3 Nc4+ Qf2 Bc7 Rh3 Nb6 Rc4 Na8 Qd2 Rd1 a1N Rdg1 Nb3 Ra1 Nd8 Bb8 Be4 d5 Nc6 Re2 Rb4 Nb7 Nc5 Rh2 Bf3 Rg2 Rf4 Re2 Be4 Ra2+ Qb2 Ra5 Qa3 Rf2 Kc1 Bc7 Qdd4 Rb2 Rf1 Bb8 Rff3 Kc7 Rf1 Kb6 Rff3 Bg3 Rf2 Kc7 Rf4 Rb3 Kd2 Kd6 Kc2 Rb2+
1B2Qrb1/4pkqP/2N3b1/Pp1R1q2/2q1P2P/1r3BQN/3rR2b/rn1QK3 b - - 0 1 legal: proof: g4 a5 d4 h5 b3 g5 b4 axb4 d5 Na6 f3 Nc5 d6 Ne4 gxh5 g4 f4 Ng5 fxg5 cxd6 Ba3 d5 Bc1 d4 e4 b5 h4 d5 c4 f5 a4 b3 h6 f4 c5 d3 h7 d4 c6 f3 g6 b2 c7 d2+ Kf2 d3 g7 g3+ Ke3 g2 Kf2 Qd5 Nh3 Bf5 c8Q+ Kf7 Qd8 Nf6 Qe1 d1R Be2 d2 Bd3 Bg6 Rg1 Qf5 Qd4 Nd5 Bc2 Nc3 Na3 b1R Nc4 Rb3 Na5 Nb1 Nc6 Rd8 a5 Rg8 Kg3 f2+ Qde3 f1B Ra2 Bc4 Bd3 Rd5 Be2 Rd4 Rf1 Rd6 Rf4 g1Q+ Kf3 Qg4+ Kf2 Rd7 Qh1 Rg1 Rb2 d1Q Bf3 Qd4 Re2 Be6 Bb2 Qc4 Be5 Rd2 Bb8 Qf6 Ba7 Qh5 Ne5+ Ke8 Qc3 Na3 Bg4 Ra1 Rf5 Nb1 Bb8 Rh8 g8Q Qf7 Rf3 Qhf5 Qd1 Bd5 Ke1 Q7f6 Qe6 Bg7 Nc6 Rf8 Rd3 Q6e5 Qf6 Bg8 Rd5 Bh6 Qe6 Bf4 Qc8+ Kf7 Qe3 Bh2 Qg3 Qb2 Bf3 Qg7 Qe8+
B1rQ4/1p1nNN1K/N2PrR2/2B2n2/1PR2np1/Q1q3n1/2Pq2Pb/1r3kr1 b - - 0 2 illegal: No proof kernel
Qq1nR2Q/pbrPBr2/q4P2/P2r4/3PRKpq/1B4Nk/q5r1/1N4Bn b - - 0 1 legal: proof: g4 b5 e4 g5 c4 bxc4 h4 f5 Qc2 d5 exd5 Bh6 Qd1 fxg4 Qe2 g3 Qf3 g4 Qd1 Bg5 hxg5 Bb7 Qe2 Ba6 Qd1 Bc8 Ke2 Kf7 Ke3 Kg6 b4 c5 a4 e5 f4 h5 d4 g2 b5 h4 d6 Kh5 d7 h3 g6 Kh4 b6 h2 b7 c3 g7 e4 a5 c4 f5 c2 f6 c3 Bb2 c1R Qa4 c2 Kf4 e3 Qa2 e2 Qf7 e1Q Qf8 Qf2+ Ke4 Nc6 b8B Rh5 Qe8 Bb7 Qe5 Nge7 g8Q Nf5 Bd6 Qb8 Qg7 Nd8+ Qd5 Rg5 Ne2 g1R Bf4 Rg2 Ng3 Kh3 Bc4 Qf1 Rg1 h1Q Bb3 Qa6 Re1 Qh2 Ba3 Qh1 Nh5 Ng3+ Ke3 Qh2 Qh8 Nh1 Be7 Qg3+ Ke4 Qh4 Ng3 Rh5 Qc6 Rd5 Re2 Rcg1 Re1 c1Q Be3 Qa3 Re2 Rc1 Bg1 Qa2 Re3 Qc8 Kf4 Qb8+ Re5 Rcc5 Qc8 Rc7 Re4 Qb2 Ra2 Qa1 Rd2 Qa2 Rde2 Nc6 Qcf8 Qd8 Re5 Qe8 Bd6 Rb8 R2e4 Rd8 Qfg7 Qg8 Qe7 Rf8 Qd8 Rf7 Qa8 Qb8 Re8 Nd8 Be7
5q2/qp5P/BNn2R2/2n1b1Nk/1nq2pq1/nr1RQP1b/1P4P1/N2Q1K1B b - - 1 2 illegal: Other
R4K2/2bN4/nn2b1P1/2PrPpbQ/3p1P1R/2BBn1Bn/nN1kr3/Q4b2 b - - 0 1 illegal: No possible last move, all moves rejected
q1r4b/p2BP3/r1r3bn/5P2/BR3KNP/N1n3Q1/Pk1pR1p1/1bR1Q1n1 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 Ke7 Ke3 Ke6 f4 g5 h4 b5 c4 d5 c6 b4 c7 g2 c5 b3 c6 d4+ Ke4 d3 e3 d2 Bb5 g3 Kf3 Kd5 e4+ Kd4 e6 b2 e7 g4+ Ke2 Na6 e8R Nh6 e5 Nb4 e6 Bg7 Nh3 g1R Qe1 g2 Ba4 g3 Kf3 Nd5 Na3 Kc3 Nf2 b1B Ng4 Kb2 f5 Nc3 e7 Be6 c8Q Bf7 c7 Bg6 Kf4 Rg8 Qa6 Rc8 Rh2 Bh8 Qd3 Rf8 Qde3 Rf6 Rf8 Rd6 Rf6 Ra6 Rb6+ Nb5 Rb8 Qd5 Qd3 Qa8 Qd6 Rh1 Rb7 g1N Re2 g2 Rb6 Be4 Rc1 Bb1 Rb8 Rh3 Rb7 Rb3 Qe5+ Nc3 Rb4 Rb6 Qe3 Rc6 Q3g3 Ra6 Rb8 Rbb6 Rb7 Rg8 c8B Rd8 Bcd7 Rc8 Rc7 Rf6 Rc4 Rfc6 Rb4+
1q2b3/r5N1/1N6/2NBPnp1/2P2BkP/r2P3b/p1R2bpq/1QKQRn1r b - - 0 1 illegal: No proof kernel
5NQ1/1rb2nq1/3BBp2/1P2QPQ1/1P2b3/k2qRN2/n1p2rPp/Kn1R1q2 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 a4 gxh4 axb5 d5 cxd5 exd4 Kd2 Ke7 Kc2 Kd6 f4 Kc5 e4 Kb4 f5 h5 d6 a5 e5 c5 d7 c4 e6 a4 e7 h3 e8Q a3 b3 c3 Be2 h4 Bh6 d3+ Kc1 a2 Qe6 d2+ Kc2 h2 Nh3 Na6 Bf1 Rh7 Ng5 h3 Qf6 Bb7 Qe5 Be4+ Bd3 Bd6 Qe6 Bc7 Bg7 Nh6 Re1 h1Q Qc1 d1N Be5 h2 Re3 Qf1 Nd2 f6 Qg8 Nf7 Ndf3 Rg7 Qd2 Ka3 Nh7 Nb4+ Kc1 c2 Nf8 Ra4 Bc4 Nc3+ Qe1 Nb1 Bd6 Qd3 Be6 Qe7 d8Q Rh7 Nd7 Qf8 Qg5 Qg7 Qg8 Ra6 Bf4 Rd6 Nf8 Rd7 Bd6 Rh4 Qeg3 Rf4 Nh4 Rf2 Qe5 Bd8 Nf3 Rb7 Bb8 Nd5 b4 Ndc3 Bd6 Bc7 Qgf4 Nd2 Rb1 a1Q Qg3 Qa2 Qg5 Qac4 Re1 Qf1 Rd1 Qcd3 Rb3+ Ka4 Kb2 Ndb1 Ka1 Na2 Ng1 Qc4 Rf3 Qcd3 Re3 Ka3 Nf3
r1q5/QN1k4/n1bqp1rq/3b1Pr1/P4Q1p/1nB2pRK/B4NPP/1N1R4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f3 axb4 f4 gxf4 e3 f5 Ba3 f3 Bc1 f2+ Ke2 f4 Kd3 f3 Kc2 Bh6 Bb2 Qd6 Bc1 Bf4 exf4 Qd8 Kd3 c5 Ke3 b5 a4 h5 d4 e6 d6 h4 d5 c4 Nh3 c3 Na3 c2 Ng5 b3 Qd2 b2 Bc4 f1Q Ra2 b1R Bb2 c1Q Nh3 b4 Bc3 b3 Rb2 Qfd1 Nf2 Nf6 d7+ Ke7 Rc2 b2 Ba2 Ne4 f5 Rh5 Kf4 Bb7 Kg4 Rg5+ Kh3 Nc5 Qd4 Bc6 Qf4 Qc8 d8N Nb3 d6+ Kd7 Nb7 Na6 Rf1 Qd5 Rd1 Qe3 Re2 Rc1 Red2 b1B Rd4 Be4 Nb1 Qe5 Rc4 Bed5 Rb4 Qf6 Re4 Qh6 Rb4 Qc5 Rc4 Ke8 d7+ Ke7 Rb4 Qd6 Re4 Rc2 Red4 Rd2 Rb4 Rd4 d8Q+ Kf7 Qc7+ Ke8 Qb8 Kd7 Qa7 Rg6 Qd2 Rdg4 Rd4 R4g5 Rg4 Nc1 Qf4 Nb3 Rg3
4RN2/b3Pr2/1Pq1kP1N/Q6K/n3P1pB/p2p4/bqQ2nR1/rBr3Bb b - - 0 1 illegal: No proof kernel
1k2b3/2p3rn/1Q1n1nqP/4BB1B/r1P1bRPR/Q1r2p2/PN1p1q1N/K7 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 Qd6 hxg4 Qd1 g3 Kd2 g5 Nh3 g2 Rg1 g4 Ke1 g3 Rh1 g1N Ng5 g2 Nf3 Bh6 Nfd2 Bf4 Nf3 Bg3 fxg3 Ra3 Bf4 Ra4 Bc1 Ra8 Kd2 d5 h4 Kd7 e4 f5 c4 b5 Kc2 f4 Kb2 b3 h5 b4 Nh4 d4 Bd3 Nh3 Qd2 g1R Nc3 Ne7 Qd1 Ng5 Qg4+ Nf5 Qf3 Nh7 Na4 Qf8 e6+ Kc6 e7 Kb7 e8Q Bd7 Be3 Nd6 Qg6 Be8 Rf1 Nd7 e5+ Kb8 e6 Ndf6 Bf5 d3 e7 d2 Bd4 Ra6 Kb1 b2 Be5 Rg8 h6 Rg7 g4 Rg3 Qa3 Rc3 Nf3 Qf7 Nc5 Ra4 Rh4 Qf8 Nh2 f3 Nd3 Qf7 Rg1 Qd5 Re1 Qd4 Re4 Qf2 Rf4 Rb3 Kc2 b1B+ Kd1 Rc3 Nb2 Bf7 e8B b3 Bed7 Bd3 Bde6 Be8 Bf7 Nd5 Qf6 Be4 Qe6 Ndf6 Bh5 Re3 Nd3 b2 Kc2 b1Q+ Kc3 Qd1 Kb2 Qb3+ Ka1 Qc2 Nb2 Rc3 Qd5 Qd3 Qdc5 Qd5 Qc6 Qf7 Qcc5 Qg6 Qb6+
K1RqQ3/Pn2r1RN/rN2qpnb/1NB1nQ1P/p1PP4/1bpB1r2/k7/8 b - - 0 1 illegal: No proof kernel
1N2NBr1/PKBPpQb1/2p4n/k2rp2n/3b1P1Q/q1R5/q3PqB1/1R2n3 b - - 0 1 illegal: No proof kernel
1RQ1Rn2/pP3N2/1bnKp1qP/4n1Rb/q1rB4/2P3P1/2b2p1Q/1Br1kN2 b - - 0 1 illegal: No proof kernel
4q1k1/Nb2rp2/1nn3r1/NP1P2bn/n5P1/4n1pB/pP2R1R1/BQ1Q2KB b - - 0 1 illegal: Other
2r3Q1/nBkNKNrn/5r2/2Ppp1B1/b1q5/bR2bP1P/2Q2Pp1/1bB3R1 b - - 0 1 legal: proof: g4 f5 a4 b5 axb5 c5 d4 cxd4 g5 f4 g6 f3 exf3 hxg6 Ra5 g5 Ra1 g4 Ke2 a5 Kd3 d5 b4 Kd7 c4 g5 h3 a4 b6 g3 b7 g2 b5 g4 b6 a3 Ne2 g1R Ng3 a2 Nd2 Rh6 Nde4 Nf6 Qa4+ Nc6 b8Q Nh7 b7 Rf6 Rb1 a1B Nh5 g3 Rb3 Qc7 Ng5 e6 Qa2 Ba3 Nf7 Na7 Qc2 B1b2 Bg5 Bc1 c5 Be3 Be2 Qf4 Bf1 Rg2 Rg1 Kc6 Be2 Bd7 Qh8 Rc8 Qg8 Kc7 Bf1 Ba4 b8B+ Kc6 Bd6 Qh4 Bf8 Kc7 Bfh6 Qg4 Nf4 Qh4 Ng6 Qf4 Nge5 Qg4 Nd7 Qh4 Ke2 d3+ Ke1 d2+ Ke2 d1B+ Kd3 Qg4 Kc3 Qf4 Ba6 Be2 Bb7 Bd3 Qc1 Bb1 Qc2 Qg4 Kd3 Bf4 Kd4 Be3+ Ke5 Qc4 Nb6 Kb8 Kd6 e5+ Ke7 Kc7 Rh1 Rg1 Nd7 g2 Nb6 Rd1 Rg1 Rd4 Nd7 Rg4 Bh4 Rg7 B4g5 Bd4 Bc1 Be3 Bg5
1nbRRR2/1B2n2b/QP5r/pkp2P1p/2r5/1n1K2NP/Q2n1P2/r1qN2B1 b - - 0 1 legal: proof: b4 f5 d4 e5 g4 exd4 gxf5 b5 a4 bxa4 b5 Qf6 c3 Bb4 cxb4 Qd8 Kd2 g5 e4 d5 e5 Kd7 b6 Kc6 b7 h5 e6 a5 e7 a3 e8R d3 h3 g4 Re5 g3 Qf3 g2 Qe4 a2 Qe3 d4 Nc3 Qg5 Rb1 a1N Re8 Rh6 Nge2 g1N Nd1 Ne7 Ng3 Kb5 Bg2 Raa6 Ba3 Rac6 Rc1 Rc4 Bc6+ Ka6 b5+ Kb6 Bd6 Nb3+ Ke1 Qf4 Qe6 d2+ Kf1 Nf3 Ke2 Qg5 Kd3 Qf4 Bd5 c5 Re1 Qg5 Qg6 Qf4 Re6 Qg5 Rf6 Qf4 Rff8 Qg5 Nb2 d1B Rc2 Qc1 Rd2 Na1 Qg8 Bb3 Nd1 Ba2 Bc6 Nb3 Be5 Ka7 b6+ Ka6 Re2 Nfd2 Rd8 Nf1 Bd6 Nfd2 Bg2 Kb5 Re6 Ng6 Ree8 Ne7 Qg7 Rc2 Ne2 Na1 Qf7 Nf1 Ke4 d3 Bh2 d2 Kd3 Na6 b8Q Bae6 Qa8 Nb8 Ng3 Bd5 Qg6 Bg8 Bg1 Bh7 Qg7 Rc4 Bb7 Nb3 Qb2 Qa1 Ne3 d1R+ Qd2 Re1 Qc2 Nfd2 Qa2 Qb2 Qa7 Ra1 Nd1 Qc1 Qa6+
1k1q3r/3bB2P/p1pRPQ1Q/5Nnr/PB3Rb1/2r3pN/BK2bP2/4nr2 b - - 0 1 illegal: No proof kernel
4R1nB/4Np1P/2qp1b1R/nk1n4/3P3b/3N2PP/bp1r1B1K/2BQn1rQ b - - 0 1 illegal: No proof kernel
1nQN1R2/2b1P1r1/B2P1nP1/k1n1p3/7R/N1rpbbp1/P3b1RB/K1Q4q b - - 0 1 illegal: No proof kernel
4B3/4P1pK/2Bb1b1n/1p2BpPb/2RR1P1Q/3q2NP/r1r5/kbN1nQr1 b - - 0 1 legal: proof: d4 b5 g4 h5 b4 e5 dxe5 c6 g5 Qc7 Qd4 Bc5 Qg4 hxg4 a4 Qd8 axb5 Be7 b6 Bf8 b5 cxb5 Kd2 Ke7 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 e4 a5 c4 d5+ e6 a4 f4 f6 Kg6 f5 e5 g3 e7 g2 e8B a3 e6 a2 c5 Bd7 b7 Nc6 b8Q Nb4 c6 Nh6 h3 Nd3 c7 Bd6 c8Q Bc6 e7 Ne1 Nd2 Kc3 Nb3 d4 Bb2+ Kc2 Be2 d3 Bf3 d2 Rd1 a1B Be5 Ra2 Ne2 g1R Nbc1 Kb1 Ng3 Be4 Qc4 Bd4 Qe2 Ka1 Qf1 Bb1 Bfc6 Rf8 Kh7 Qd7 Bf7 Rc8 Rh2 Rc7 Qh8 Bc3 Be8 Bb2 Be4 Rc2 Bc6 Bd4 Re2 Qd8 Re4 Qd7 Nd3 Bb2 Rc1 d1B Rc4 Bh5 Rd1 Bb4 Nc1 Qd3 Bc7 Bf6 Be5+ Qc3 Rdd4 Qd3 Qf8 Bd6 Qf7 Be2 Qh5 Bd1 Qh4 Bf3 Bb7 Bh5 Bbc6
b1n5/BR1Pn2Q/3N3r/1b1rp2P/2Pp1br1/4N1P1/2rpK1BN/2Q2Rkq b - - 0 1 illegal: No possible last move, all moves rejected
1Br1q3/1K1P1RQr/Bp6/1bPRB1P1/p1NnN1r1/pb2Q2P/2n2b2/1k5b b - - 0 1 illegal: No proof kernel
Q1k4b/1nP3BQ/Pq1r2p1/1p2Q3/N4p1B/N3RrR1/2nPKPbb/2b4n b - - 0 1 illegal: No proof kernel
K1k2nQn/1P5b/2pR2rP/bp3NBQ/2p3N1/2PRq1NP/3n1rr1/2B1r3 b - - 0 1 illegal: No possible last move, all moves rejected
2br1k2/1P1P1Rp1/rQ3q2/NBK1N2n/3r2p1/pRBQbP2/n4QP1/3n1r2 b - - 0 1 legal: proof: c4 b5 e4 h5 a4 f5 axb5 fxe4 Qg4 d5 cxd5 hxg4 Ke2 a5 Ke3 e5 d4 c5 b4 a4 h4 c4 b6 a3 d6 c3 b5 c2 b7 Qb6 h5 Ra5 h6 Bf5 h7 Qd8 b6 Rb5 d5 Ra5 Rh3 Ra6 Nf3 Nc6 b8Q Bc8 Bb2 c1R Nbd2 Nb4 Nc4 Qf6 Na5 Rc4 Re1 Na2 Bc3 Rd4 d7+ Kf7 d8Q Bc5 Qd7+ Kf8 b7 Bb6 d6 Ba7 Bb5 Bb6 Ke2 e3 Qbc7 e4 Ne5 Bc5 Qf5 Ba7 d7 Bb6 Kf1 e2+ Kg1 e3 Qd3 Qd6 Qc6 Nf6 Rg3 Bc5 Qb6 Nh5 Rh3 Rg8 h8Q Qf6 Qh6 Rh8 Qf4 Rg8 Rb1 e1N Rb3 e2 Re3 Rh8 f3 Rg8 Kf2 Nc2 Qg3 e1R Qh4 Rf1+ Ke2 Rd5 Qf2 Rd4 Re4 Ne3 Kd2 Nd1 Re2 Nb2 Ke3 Rd6+ Ke4 Be3 Re1 Nd1 Re2 Rc6 Kd5 Rc4 Re1 Rd4+ Kc5 Ke7 Re2 Rd8 Re1 Kf8 Nec6 Bf4 Re7 Bc1 Ne5 Be3 Rf7+
B1RQ4/nBqn4/7K/pNr1P3/1bqPp1P1/PQ6/k2Rp1rn/nN3Q1b b - - 0 1 illegal: No possible last move
2q4r/Rr1Q1K1P/1k1N1p2/1Q5P/PpR1n2N/pn1R4/1Pbb2B1/qB1n3n b - - 0 1 illegal: No proof kernel
q2N4/nB4PN/P1qbQ1NB/1Qnp2PK/2Rn1R1p/kp5P/5n2/b1r3r1 b - - 0 1 legal: proof: e4 a5 d4 g5 f4 c5 b4 axb4 fxg5 cxd4 e5 d6 e6 Bd7 Qe2 Qc8 Qg4 Kd8 exd7 Kc7 Qh5 Qd8 Qd1 Kc6 Ke2 Kc5 Kf3 e5 Kg4 h5+ Kh4 b5 g4 f5 c4 d3 a4 d5 h3 e4 a5 f4 a6 b3 Qe2 Kb4 c5 b2 c6 d2 c7 d1N c8N f3 Bf4 f2 Bg3 e3 Ra5 Bd6 Nd2 b1Q Nb3 Qc2 Nc5 Nh6 Bf4 Nc6 Ne6 Rg8 Ne7 Rc8 g6 Na7 Nf3 Qc6 Nfg5 Qf8 Nh7 Nf5+ Kg5 h4 d8Q Nd4 Qd7 Rc7 Ra1 Qfa8 Rc1 Ka3 Rc4 b4 Kh5 b3 Nd8 Rg7 Qd3 e2 Qe6 e1B Bh6 Bc3 Be2 Ba1 Rf1 Nc3 Bf3 Na4 Be4 Nc5 Bf5 Rf7 g7 Rc8 Rd1 f1N g5 Nh2 Rf1 Ng4 Rf4 Nf2 Ng6 Rf8 Qe1 Rc7 Bc8 Re8 Qee2 Re3 Qe1 Rg3 Bb7 Rg1 Qe8 Re7 Qf5 Ree1 Qfe6 Rc1 Q8d7 Qc7 Qb5 Qb6 Qee8 Qc6 Qe6
1BQ1n1bK/2PBqQP1/1R2n2p/p3rP1N/Q1n2R2/N2Pbr1q/6p1/1kn5 b - - 0 1 illegal: No proof kernel
3Q4/1pr1bQq1/Pn3NB1/n1p1br2/q3PP2/p1r5/KRP3N1/B1kr1R1N b - - 0 1 illegal: No proof kernel
rB1q4/1pN1R1RP/B1n2bP1/bP2NpQ1/Pr6/K1Rq3k/4b1p1/1bn2Q2 b - - 0 1 illegal: No proof kernel
3k2r1/RN1qnp2/BP2p1bq/1Np1rq2/2rR1P1Q/4b3/Q4BPP/4b1BK b - - 0 1 illegal: No proof kernel
2b1BR1k/1q3Q1q/2b4B/1NP1pNPn/K3R3/np2Qp2/1PbnPq2/2Qr4 b - - 0 2 illegal: No possible last move, all moves rejected
rN5Q/kRp1Br1r/b1p1P1n1/4R3/1Q5b/qPPb4/B1P2pNK/1q1qN3 b - - 0 1 illegal: No proof kernel
2R4B/2QNPN2/3nr1Q1/p2qb1BK/PbB1bk1n/n1P1p3/3P2pR/4b2b b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 h5 Qf3 hxg4 Qe2 Qd7 Qd1 Qd8 f4 e5 Nc3 a5 Bd3 b5 Bf1 e3 Nb1 e4 Bc4 Rh5 Bf1 Re5 fxe5 Ra6 Bg2 Rh6 Bf1 Rh8 h4 e2 Kf2 Kd7 Kg3 Ke6 a4 Kf5 e6 e1B+ Kh2 g5 c6 e3 c7 g3+ Kh3 b4 c3 g4+ Kg2 b3 h5 b2 h6 Nd7 h7 Ndf6 Na3 b1N Nc2 Bb7+ Nf3 Ne7 c8Q Ng6 Nb4 Ne8 Nc6 Nh4+ Kg1 Rg8 h8B Rg6 Ba3 f6 Be2 g2 Kh2 Kf4 Ra2 g3+ Kh3 g1B Nce5 Ke4 Ba6 f5 Be7 f4 Rb2 Bh2 Nf7 Na3 N3e5 f3 Bc4 f2 Qh5 Qd3 Qg5 f1B+ Kg4 Bg2 Kh5 Qd8 Qh6 Kf5 Qh7 Bbe4 Qc7 Qd5 Bd8 Bc5 Nd7 Nd6 Rb8 Bb4 Qh6 Rf6 Rc8 Rg6 Bg5 Rf6 e7 Re6 Rg1 Bh1 Rg2 Bg1 Qg7 Bgf2 Rh2 g2 Qh6 Bg3 Bgf6 Be5 Qg6+ Kf4 Bg5+
3NbkB1/rPn2rpp/5qR1/r3Rrb1/1QQB1Q1b/4prPP/P5K1/1N6 b - - 0 2 legal: proof: d4 f5 e4 fxe4 b3 c5 b4 cxd4 Bd3 b5 Bf1 a5 bxa5 Na6 Bd3 Nc7 Bc4 Nd5 Bf1 Nb6 axb6 Ra6 Qg4 Ra3 Qd1 Ra8 c4 d5 f4 e5 Kf2 d3 h3 e3+ Kg3 e2 c5 e1B+ Kh2 b4 b7 d2 f5 b3 c6 b2 c7 e4 f6 d4 Bd3 e3 Qe2 d1R Qf2 Ne7 Be4 d3 Ne2 d2 Bd5 Ra7 Nd4 Bd7 Bc4 Nd5 c8Q Be7 f7+ Kf8 Qf4 Bg5 Rf1 Beh4 Nc6 Be8 g3 Qe7 Kg2 Nc7 Nd8 Qf6 Rf3 Rf1 Be6 Nb5 Qcc4 d1R Bd2 Nc7 Bc3 Rd5 Bd4 Rb5 Rf2 Rba5 Rc2 Rf3 Bd5 Ke7 f8Q+ Kd7 Qfb4 Rf8 Bg8 Rf7 Qbb3 Ke7 Qbb4+ Qd6 Rc3 Kf8 Ra3 Raf5 Ra5 Qe7 Re5 Qd6 Nc3 Qe7 Rf1 b1R Rc1 Rb3 Nb1 Rba3 Rc3 R3a5 Ra3 Rd5 Ra6 Ra5 Rg6 Qd6 Qa4 Qf6 Qab4+
Kb3NR1/pn1b3b/2p1p1rP/2PB2rr/2BRQb1Q/P6k/2b4P/2R2N1q b - - 1 2 illegal: No extended proof kernel
1b3n2/pQPk1q2/N2p2BP/2pBb1r1/bbnb3K/P2Q4/P1n1R1R1/B3N3 b - - 0 1 illegal: No proof kernel
2rB4/1k1pn1BP/bP3Rn1/1Q3nP1/R1pb3p/7N/1nBPqQ1K/N3b2n b - - 0 1 illegal: No proof kernel
3k1b2/1R1qB3/PP2p1Pp/3nPBq1/1Q1p2RQ/1Q2n2n/1n2KN2/1nr3rN b - - 0 1 illegal: No proof kernel
q1B5/PpQqRrk1/1r1r1B1p/RPr3NK/3N1P2/5Q1p/b1P5/1nbr3N b - - 0 1 illegal: No possible last move, all moves rejected
QB2Nk2/KN1pR1P1/Q1qPr1B1/qr2pb1P/p1Bn4/r3rRr1/Pn6/8 b - - 1 2 legal: proof: e4 f5 g4 fxe4 b4 c5 bxc5 h5 Qe2 hxg4 Qf3 Rh7 Qd1 Rh8 Ke2 a5 Ke3 g5 Kd4 b5 c4 a4 h4 e3 f4 b4 c6 g3 Kc5 b3 d4 g2 d5 e2 h5 e1Q c7 b2 Kb6 g4 c5 e6 f5 g3 f6 Nh6 c6 Kf7 Rh3 Bb7 Qf3 Qc8 Ne2 g1R Nf4 g2 Bc4 Na6 Nc3 b1R+ Nb5 Bg7 Nd3 Nb4 Nd6+ Kf8 Ne8 Nf5 Bf4 Nd4 Nc5 Ra5 Bh2 Rb5+ Ka7 Rb3 Rb1 Qd2 Re1 Nd3 Re4 Ba6 Nb7 Qa5 Qf1 Ra3 Rf3 Nb2 Bd3 Qd8 c8Q Qdc7 Qa8 Rh7 Qe2 Re1 Bc2 Qc8 Bb8 g1R c7 Rg3 d6 Rh8 Qf1 Ree3 Re5 Rg8 Bg6 Rh8 Rg5 e5 Qe2 Qd8 c8B Qdc7 Qd3 Qc6 Rg4 Rd5 Qb5 Rg8 Qb6 Bc4+ Qa6 Bd3 Be4 Rc5 Nc7 Nf5 Nd8 Bh8 Rg7 Nd4 Bg6 Be4 Rh7 Rg7 Ne8 Rb5 Bb7 Qcc3 Bd5 Re7 Rg7 Re6 Nb7 Bf5 Re7 Qc6 Bc4 Bg7 fxg7+
1nb1k2R/N3b3/Bpr5/Pr2q3/r1Pp1Qp1/4r1P1/qQ1P2N1/2BbNR1K b - - 0 2 legal: proof: e4 a5 h4 f5 b4 axb4 Rh2 c5 Bc4 g5 Ne2 Nc6 Rh1 Nd4 Ng1 g4 exf5 Ne6 Qf3 Ng5 Bf1 c4 Qb3 cxb3 hxg5 Ra6 Ke2 Ra3 Ke1 Ra8 a4 e5 f4 d5 Kf2 h5 f6 h4 g3 h3 c3 e4 f5 b6 g6 b2 g7 d4 Nf3 h2 Kg2 b3 Na3 b1R Nb5 b2 Na7 e3 Ba6 e2 Ne1 Ne7 g8Q Nc6 Qb3 Qc7 c4 Qe5 Qb5 Be7 f7+ Kd8 f8N Ke8 f6 Rh6 Qb4 Nb8 Ne6 Rg6 Rf1 h1B+ Kg1 Bg2 Nf4 Bf3 Nfg2 Rh6 Nd3 Rg6 Kh1 e1R Qb3 Re3 Ne1 Bd1 f7+ Kd8 Ra2 Rc6 f8Q+ Kd7 Qf5+ Ke8 Qf6 Ra1 Qf3 b1Q Qb2 Qc2 Qf4 Rb1 Qc3 Rb5 Ra3 Qa2 Qb2 Re2 Re3 Qf6 Re5 Re3 Rh5 Qe5 Rh8+ Bf8 Bb7 Rbc5 Nb5 Ra5 Na7 Rcb5 Rh3 Be7 Ba6 Rb4 Rh5 Rab5 a5 Ra4 Rh8+
bR2BQ2/1q1P4/2P3nn/1k3P2/1n1pQ1p1/1b1PpRb1/RKNn1r2/B1Nq4 b - - 0 1 illegal: No proof kernel
KnQB3N/1p2Bnn1/1PR1bN1r/5Pp1/k3q1BQ/4qr1P/pP2r1R1/5n2 b - - 0 1 legal: proof: g4 f5 c4 d5 cxd5 h5 e4 fxe4 a3 hxg4 Nf3 e6 Ng1 Bb4 axb4 Qd7 Ra3 Qe7 Ra1 Qd8 Ke2 Kd7 Ke3 a5 Kd4 g5 Kc5 e5 d4 a4 f4 g3 d6 a3 d5 a2 h3 g2 f5 e3 b5 e4 b6 e2 Nd2 e1Q Ne2 g1N Nb3 e3 Bg2 Nf3 Qd4 Nd2 Nf4 e2 Rg1 Qe7 Ng6 Nf6 Qh4 Nh5 Bf3 Qe4 Rg2 Rh6 Bg4 Ng7 Nh8 Nf1 Bd2 Ra3 Bb4 c6 Nd2 Rf3 Rc1 Qg3 Rh2 e1R Rg2 Re2 Rc4 Ke8 Ba3 Be6 d7+ Ke7 d8B+ Kd7 d6 Qf2+ Kb4 c5+ Kb5 Qfe3 Bb4 Qb1 Ne4 Qe1 Rc2 c4 Ba3 c3 Kb4 Kc6 d7 Kd5 Nf6+ Kd4 Rc1 c2+ Kb5 Kd3 Bae7 Qe4 Kc5 Qf2+ Kd6 Kc4 Kc7 Kb5 Rd1 c1N Rd6 Ka4 Rc6 Nd3 Kc8 Ne5 Kc7 Nf7 Kc8 Qfe3 Kc7 Na6+ Kc8 Nb4 Kb8 Na6+ Ka8 Rh7 Bc7 Rh6 d8Q Nb8 Qc8 Qb1 Bcd8 Qc2 Rd6 Qce4 Rc6
1b1q1qNr/1krp4/qpr5/1P2n2B/p1P1Q1Q1/RNNB2K1/P2P3R/6nq b - - 2 3 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 b5 Nf6 Ba3 Ng8 f3 e5 Ke2 b6 Bb4 cxb4 Na3 e4 Nb1 Bb7 Kf2 e3+ Ke1 Be4 fxe4 Bh6 Qe2 Bg7 Qd1 Bf8 c4 a5 g4 h5 g5 h3 e5 b3 e6 a4 f6 h4 e7 b2 g6 e2 Kf2 e1R g7 h2 Kg2 h3+ Kf2 Nh6 g8N Nf7 Nc3 b1Q Kf3 Qb4 Bd3 Re6 Bc2 Nc6 Nh6 Ra7 Qe2 Nd4+ Kg3 Rc7 Bd3 Ne5 Ng8 Ndf3 Rb1 Rec6 Qe4 Qd6 Nge2 Ng1 Rb3 Bh6 Ra3 Bf4+ Kf2 Qb4 Nc1 Qa5 Nb3 Qa6 Qe1 Ngf3 Rg1 h1Q Rg2 Ng1 Rh2 Qd5 Qe4 Qf7 Rh1 Qf8 Rh2 Kf7 e8B+ Ke6 Bh5 Kd6 Rg2 h2 f7 h1Q Rh2 Qg7 f8Q+ Qge7 Qe8 Qf8 Qg2 Ra7 Qg3 Kc7 Qgg6 Kc8 Qge6 Rac7 Qg4 Kb8 Qeg6 Kb7 Qe4 Nef3 Qe1 Rc8 Rg2 Bb8 Qee4 Rc7 Kg3 Ne5 Rh2
1N2K3/1pP1p3/2n1n2r/1PBR4/R1NbPN2/2bq1PqB/q3np1Q/Qk4n1 b - - 0 2 illegal: No possible last move
r5Q1/2qPpqQ1/p1q1r2P/1nRNrpq1/R1K3N1/PQ2bBB1/k4P2/4b3 b - - 1 2 legal: proof: g4 b5 e4 h5 c4 bxc4 e5 g5 h3 h4 e6 dxe6 Be2 e5 Bd3 Nf6 Bf1 Nh5 gxh5 e4 Bg2 g4 Ne2 g3 Bf1 Bg4 hxg4 Nd7 Ng1 Nf6 Qf3 Ng8 Qb3 Qd7 Qd1 Qd8 Ke2 Kd7 d4 Ke6 b4 Kd5 a3 f5 b5 c5 g5 e3 g6 g2 b6 a6 g7 c3 Kd3 h3 b7 c2 b8Q h2 Qg3 e2 Qf4 e1B Bd2 c1Q Qc7 c4+ Ke3 c3 Kd3 c2 Qg3 Qe8 Be2 Qf7 Bf4 Rh6 Nf3 g1R Ne5 Re6 Ng4 Nf6 g8Q Ne4 Bf3 Bh6 Ra2 Bg5 h6 Rf1 Rg1 h1Q Bd6 Be3 Nc3+ Kc6 Nd5 Kb5 Rg2 Ka4 Kc4 Nc3 Rb2 Qhh5 Rb5 Qg5 Rc5 Nb5 Qe5 Rg1 Qeg7 Rh1 Bg3 Rg1 Kd3 Kb3 Rh2 Ka2 Kc4 B1d2 Rh4 Re1 Ndf6 Re2 d5 Be1 d6 Qb1 d7 c1Q+ Kd5 Qbc2 Qd3 Qa4 Qc3 Qa5 Kc4 Qc7 Nd5 Bf4 Q8h8 R2e5 Qhh7 Be3 Qhg8 Qd2 Qb4 Qc6 Qa4 Qa5 Qb3+ Ka1 Ngf6 Nd6+ Kd3 Nb5 Ra4 Qab6 Kc4 Qbc7 Qd3 Kb2 Ng4 Ka2 Qb3+
1KB1rQ2/3bpb1r/1b1P4/3pqn1R/4r3/3PPqBB/2k1pPr1/1Q2RNN1 b - - 0 2 legal: proof: h4 d5 a4 f5 e3 g5 Qe2 f4 Kd1 f3 c4 Nd7 Kc2 Ndf6 c5 gxh4 Kc3 fxe2 Kc2 b5 axb5 Ne4 Nc3 Qd7 Nb1 Nd6 cxd6 Qd8 Kc3 Kd7 Kd4 Ke6 Kc5 Kf5 Kc6 Ke4 g4 Kd3 b4 a5 g5 h5 b6 h3 b7 h2 b8Q a4 g6 h4 b5 a3 b6 a2 g7 h3 b7 Ra4 Qa8 Bd7+ Kc5 Nh6 b8Q Kc2 g8B Nf5 d3 Bg7 Bg2 Qf8 Qaa7 Re4 Qd8 Bd4+ Kb4 c5+ Ka5 c4 Ka6 c3 Kb7 Bb6 Qab8 Qf6 Bh7 Re8 Nf3 Qe5 Re1 h1Q Nbd2 h2 Bh3 Qg2 Bg8 h1B Ng1 Qf3 Bb2 Bg2 Rab1 a1R Nf1 Be6 Rbd1 Bf7 Kc8 Raa4 Qb7 Rh4 Kb8 Rae4 Ba1 Rh7 Qdc8 Bh5 Be6 Bf7 Rc1+ Kb3 Rcd1 c2 Qd8 c1R Bc8 Kc2 Bc3 Qf6 Be5 Ra1 Bg3 Qe5 Rb1 Raa4 Rb4 Rg4 Re4 Rg6 Rh4 Re4 Bg4 Bh3 Rh5 Reg8 Qf8 Rgh8 Qh6 Re8 Qg7 Nh6 Be6 Nf5 Qf8 Rgg7 Bh2 Rg2 Bg3 Bc5 Qb4 Bb6 Qb1+ Kc3 Bf4 Nh6 Qb5 Kc2 Bg3 Bg4 Bf5 Bh3 Bg6 Bhe6 Bf5 Bd7 Bh3 Nf5 Qb1+
K1nB3N/pnP1B2p/2q1NQP1/bb5k/5p1Q/2r2RnP/P2n1R1B/3bq3 b - - 1 2 illegal: No possible last move
K2Br1QR/6b1/PBp5/2P1r2Q/rN2NrPR/Pb3p2/r1qpk3/1rnB4 b - - 0 1 illegal: No possible last move
2bKn1bR/2P1Q3/P3B1p1/k2p2Q1/1b1P1B2/pnr1n1Pq/R2QN3/3N1n1b b - - 1 2 illegal: No proof kernel
r2rRr1n/k2Pp1pn/B2q2PN/2P1p1r1/Q3Pn2/K1R4N/2Nr4/2Br3Q b - - 0 1 illegal: No proof kernel forced: wxDB
Q2b2bR/q3N1nn/n1Ppp2n/n1PPP1B1/Q2Kp3/1b3k2/3R4/3nBB1N b - - 0 1 illegal: No proof kernel
Q1r2k2/b1qp4/1PPQ4/5n2/NrbQ2B1/p1P1n2p/p1b1N1RP/K1RrB3 b - - 0 1 legal: proof: e4 b5 a4 bxa4 d4 c5 dxc5 f5 exf5 g5 f4 gxf4 Kd2 h5 Kc3 e5 b4 a5 Kb2 f3 g4 f2 g5 h4 f6 a3+ Ka2 e4 c3 e3 c6 h3 b5 a4 g6 e2 g7 e1R Qf3 Qc7 Qd3 Rh4 Nd2 Ne7 g8Q Na6 Ne2 Nf5 Rg1 Rd1 Rg2 Rb4 Nb3 Bb7 Bf4 Rc8 f7+ Ke7 Bc1 Bh6 Kb1 Be3 Qd4 a2+ Kb2 Qb8 Qg6 Qc7 Bd2 Kf8 Rc1 a3+ Ka1 Qb6 Ng3 Nc7 Be2 f1B Be1 Nd5 Bg4 Bd3 Nc5 Ba6 Na4 Bc2 Ne2 Qc7 Qgf6 Bf2 Qfe5 Nde3 b6 Bc4 Qe6 Bg3 Qef6 Qa7 Qe6 Bb8 Qee5 Qc7 Qa5 Ke7 Qa8 Ba7 f8Q+ Ke6 Qg8+ Ke7 Qe6+ Kf8 Qed6+
1kRr3N/1p1BNK1b/P3n3/R3r1p1/1p2PQ1b/1Bp2n1P/Qq2r1P1/3N2b1 b - - 0 1 illegal: No proof kernel
5Bkn/1K4P1/1p1N2rp/RRbP4/1R3P2/1p1B1P2/rp1Qrq1N/1b1q2Qn b - - 0 1 illegal: No proof kernel
1B2rr1R/4p3/bqQpBN2/p1q1P2R/3n1P1N/n2QK1b1/PPqp2R1/2k5 b - - 0 1 legal: proof: g4 f5 gxf5 g5 d4 b6 c4 g4 c5 bxc5 h3 cxd4 hxg4 d3 g5 Bg7 Nf3 Bh6 Ng1 Bf8 Kd2 Kf7 e4 h5 e5 c5 f3 a5 f6 Ke6 g6 Kd5 g7 Kc4 f7 d6 Bg2 h4 Bh3 Nc6 Bd7 h3 Nc3 h2 Nb5 Nh6 g8R Ba6 Ke3 Nb4 Rg3 Nf5+ Kf4 Nc2 Qe1 Na3 Be3 d2 Nc7 Kd3 Rg2 Kc2 Qe2 c4 Nd5 c3 Ba7 Qb6 Be6 Re8 Bb8 Bh6+ Ke4 Rhg8 f8Q Bf4 Qc4 Bg3 Qc6 Nd4 f4 Nf3 Qf5 Rgf8 Re1 Nd4 Qh7 Nab5 Nf3 Na3 Rhf1 h1Q Nf6 Qh5 Rh1 Qg6+ Ke3 Qf5 Rh4 Qg6 Reh1 Qf5 R1h3 Kb1 Bc8 c2 Be6 c1Q Rh6 Qg6 R3h5 Qcc5 Nh4 Qgc2 Qd3 Kc1 Rh8
4Q3/kbNKpNpr/1r1BNR2/2p2n2/2PqQpP1/7P/2P1B1rq/1Rb3n1 b - - 0 1 illegal: No proof kernel forced: wxDB
8/3P2pb/1bKBR1rn/1P1p1BpQ/1pn1PN2/1n3rkN/1Pq5/Q1qR3B b - - 0 1 illegal: No proof kernel
b1NQ3q/K1p1P1Nb/2Pq1P1r/2kPp3/4Bnp1/1rn4p/2B2B2/b1R1QR2 b - - 0 1 illegal: No proof kernel
qN1Qn1r1/bpP1BPp1/B1r1pRq1/1P5P/5K1N/1kn1Q1Rp/6R1/1q4b1 b - - 0 1 illegal: No proof kernel
2K1Q3/PrP4B/Qpnr2p1/Bn1R2Pb/qP1N3p/1q1pNk2/2R1q1bB/8 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 h4 cxd4 b4 a4 h5 g6 h6 Kf7 Qd3 Bg7 hxg7 Ke8 Qb3 axb3 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 g4 d5 a4 h5 f4 e5 c4 h4 g5 d3 f6 d4 a5 d2 a6 d1B f5 b2 f7 Ba4 f8B Rh7 a7 Bc2 f6 Ba4 f7 Rh5 Be7 Bad7 Kd6 Rh7 f8Q Nh6 g8Q Qe8 Kc7 Nf5 c5 Nd6 c6 Be6 Bf4 Bh3 Rh2 Bcg4 Qa2 Bh5 Ne2 Kf3 Nbc3 b1Q Qa6 e4 Ra5 e3 Nd1 Qb3 Rd5 Bg2 Qf7 Rg7 Bd8 Nb5+ Kc8 d3 Nd4+ Kg4 Bc7 e2 Ba5 e1Q Ne3+ Kg3 Be2 b6 Bg4 Qe2 Be6 Rh7 Qe7 Rg7 Bg8 Kf4 Qe6 Rb7 Bh7 Kg3 c7 Qc6 Bf6 Kf4 Ndf5 Kf3 Be5 Qcc2 Qe8 Qca2 Rh1 Qaa4 Rc1 Nc6+ Kd7 Bh3 Rc2 Bg2 Bh2 Rc8 Qe7 Rf8 Qe8 Rf6 Kc8 Rd6 Nd4+
3rn1NN/b1P1kp2/K1Pp2P1/1PqpBB2/2r5/n1Q1b1RR/3pRbb1/1Q6 b - - 0 1 illegal: No proof kernel
3q1qk1/2pq2Pr/2Pp3n/QK1R1Nr1/Q1BRp1p1/5PP1/b1R1N3/5Bbr b - - 0 2 legal: proof: d4 e5 a4 exd4 e4 b5 axb5 f6 e5 Nc6 e6 Nb8 h3 g5 Be3 Nc6 Bf4 Ne5 h4 g4 Bh2 Nf7 Be5 Ng5 hxg5 fxe5 Kd2 h5 Kd3 a5 Kc4 e4 b4 a4 b6 d6 f3 d3 b7 a3 b8R h4 g3 d2 e7 Kf7 e8B+ Kg7 b5 h3 g6 h2 b6 a2 b7 Nh6 Nc3 Qd7 Nb5 Ra7 Bf7 Ra5 Ne2 Ng8 Rc1 a1Q Nbd4 Rh7 Nf5+ Kh8 c3 Qd8 Qa4 d1Q Rc2 Nh6 Ra8 Bd7 b8Q Bg7 Qbb4 Bd4 Qba3 Rd5 Ra5 Be6 Kb4 Qac1 c4 Qf4 c5 Bg1 Kb5 Qd4 Qc3 Qg7 Qca1 Re5 Q1a2 Bd5 c6 Bb3+ Bd5 Qgd7 Qa1 Ba2 Qe1 Bc5 Bc4 Rd5 g7+ Kg8 Rg1 h1R Rg2 Qe5 Rd2 Qee7 Rd4 Qdf8 Nc1 Qdd8 Rc2 Qef7 Ne2 Re5 Ne3 Rg5 Nf5 Bb6 Kb4 Ba7 Rad5 Qfd7 Kb5 Bc5 Qea5 Bb6 Rdd2 Bg1 R2d4
2r2q2/rB1Qq2b/1q2P1P1/R4ppN/1k3P2/pnp2R1P/R1Nn3K/B2r3Q b - - 0 1 illegal: No proof kernel
2k1K1Rr/b1p4q/1Bp1Rb2/Q2q1p2/2PP2Rn/n1QB1NP1/N4p1P/q4b2 b - - 0 1 illegal: No proof kernel
RQ4q1/2QP1p1P/5B2/n1bp1Np1/1P1kn2R/6Qb/2BrpPb1/bK2N2b b - - 0 1 illegal: No possible last move
NqRQ1b1r/r3PB2/bP4R1/2B2pbN/r1p1Q2n/1rP5/2Qp1pP1/2k4K b - - 0 1 legal: proof: f4 e5 a4 g5 d4 gxf4 h3 b5 axb5 exd4 h4 Na6 Ra5 Nc5 Ra3 Ne6 Ra1 Ng5 hxg5 Bh6 Be3 Bg7 Bc1 Bf8 Kf2 Ke7 e4 Ke6 b4 Ke5 g6 d5 b6 h5 b5 a5 g7 c5 b7 f5 b6 h4 Na3 f3 Ba6 a4 Bg5 d3 b8Q+ Kd4 e5 Kc3 e6 Kb2 Bc4 d4 Ne2 d2 Kg1 d3 Rh2 f2+ Kh1 Ba6 Ng3 Ra7 Qb7 Qb8 Qg1 d1R Qe4 d2 Bd8 Ne7 g8Q Ng6 Be7 Rb1 Nb5 a3 Nh5 a2 Bd5 c4 Bc5 Ne5 Rh3 Ng6 Rg3 h3 e7 Nh4 Rg5 Re1 Rg3 Re3 Nc7 Ra3 Rg6 Rb3 Rd1 a1B Bf7 Ka2 Na8 Bf6 c3 Kb2 Ra1 Bg5 Qc6 Kc2 Qe1 Kb2 Qa4 Kc2 Qe3 Kb2 Ra3 Kc1 Qe4 Rb4 Qg7 Qb7 Kh2 Bb5 Ra2 Ra6 Qg4 Kb1 Q7d4 Qc8 Qa5 Rb3 Nc7 Qb7 Qd8 Qc8 Kg3 h2 Ra3 h1R Qe4+ Kb2 Ra1 Rb1 Kh2 Kc1 Qa2 Rb4 Qb3 Ra8 Ra6 Ra4 Kh1 Rb2 Ra7 Ba6 Rb7 Rb1 Rb8 Ra7 Na8 Qc7 Rc8 Qb8 Qa2 Rb3 Qac2#
1n1bq3/2pr1kr1/p1B5/R1PpP2R/1B4rp/2QP2rP/1nK2Q2/NR3qN1 b - - 1 3 legal: proof: f4 e5 a4 exf4 g3 fxg3 a5 d6 a6 Qg5 axb7 Kd7 Bg2 Na6 b8Q Qa5 Bf1 Bb7 Qxb7 Re8 Qa8 Re7 b4 Ke6 e4 g5 c4 h5 b5 f5 b6 f4 b7 g4 b8R h4 h3 f3 c5 g2 e5 g3 Qb7 f2+ Ke2 d5 Kd3 Rg7 Qe2 Kf7 Rh2 Nh6 Ra4 Be7 Qb2 Bd8 Qa1 Nf5 Ba3 Nd6 Rh1 Nc4 Qc3 Qb5 Bb4 Nb2+ Kc2 Rhh7 Ra5 Qe8 Na3 Rg4 Rb6 Nb8 Rh6 a6 Rh5 Rgg7 Qee3 Rg4 Bd3 f1Q Bb5 Rgg7 d3 Rg4 Nf3 g1R Qf2 g2 Bc6 Kf8 Nc4 Rd7 Ncd2 Kf7 Nb3 Rg3 Rh2 Rh1 Na1 g1R Rg2 Rg4 Rh2 R1g3 Rg2 Rh2 Rg1 Rhg2 Rh1 Rg7 Rg1 R3g4 Rh1 R2g3 Rg1 Qg2 Rb1 Qf1 Ng1+
2Bk1Q1r/1n1bb2n/2p1P3/pRP5/2Qp1n2/QN1P3b/1PpNb1B1/2rR2K1 b - - 1 2 legal: proof: h4 b5 c4 e5 f4 exf4 d3 g5 hxg5 b4 Bd2 Qe7 Bc3 bxc3 Rh2 Qa3 Rh1 Qb3 axb3 Bb4 Ra5 Be7 Ra1 Bf8 Kf2 a5 e4 f5 g4 d5 b4 h5 g6 h4 e5 c2 b5 h3 g7 d4 b6 h2 g5 f3 g6 Nd7 b7 Kd8 b8Q Nc5 Qb4 Be7 Qa3 Nf6 g8B Nb7 g7 Bd7 Be6 Nh7 Ne2 Rc8 Rg1 h1B Qc1 Bg2 Nd2 Bh3 g8Q+ Be8 Kg3 f2 Bg2 f1N+ Kf2 Ne3 Qf8 Nd5 Rf1 Nf4 Kg1 Ra8 Bc8 Ra7 Qh6 Bd7 e6 Ra6 Re1 Rc6 Qf8+ Be8 Kh1 Nh5 Qf6 Bd7 Ra2 Rc5 Rf1 Re5 Kg1 f4 Ra1 f3 Qf8+ Be8 Qb1 c6 Nc1 Re1 Qba2 Rd1 Re1 Nf4 Q2b3 Bd6 Qc3 Be7 Ncb3 f2+ Kh1 f1B Re5 Nd5 Kg1 Nf4 Rb5 Rb1 c5 Rd1 Qf5 Bd7 Qc4 Be2+ Nf1 Rd2 Re1 Rd1 Nfd2 Ra1 Rd1 Rc1 Qf8+
k1Kn2NR/8/1B1b1pQ1/4QPbn/2pp1npP/3P1b2/1B1qN1P1/Nn2q2R b - - 0 3 illegal: No proof kernel
2Bq4/2R1Q1n1/KP3pPp/1P6/1R3p1k/1prNN1pP/3n2Bb/2QNbbr1 b - - 0 1 illegal: No proof kernel
1B1Q4/3bK1P1/1q1BpQrp/r1R5/1p2r1Np/1nPb2Q1/n2pP2P/1kN3R1 b - - 0 1 illegal: No proof kernel
Q3Q3/1P1PbB2/n4Rr1/K2Pk2n/pB6/3npp1N/R1qPp1bp/1Nr3B1 b - - 0 1 illegal: No proof kernel
3Q3N/nRp1Ppb1/4p3/K1kqQ1Rr/3P2Q1/1P1b1qP1/2r1p1Bp/Bn5N b - - 0 1 illegal: No possible last move, all moves rejected
6n1/2P2p1p/KBN1BP2/1n1rQ1P1/1PbB2R1/p4r1R/1p3p1N/3rQnkq b - - 0 1 illegal: No proof kernel
K2Br1B1/Nn2p3/1pkp2pr/q2p2QN/1PP1n3/n2RN1P1/Pr1R4/2b4Q b - - 1 2 illegal: No possible last move, all moves rejected
2q3n1/2PR3P/Rpb3kp/1R2b3/NBnb1Bp1/4qprp/N1K1QP1P/Q7 b - - 1 2 illegal: Other
2K3nb/3B1Q2/Q1pbpq1R/5P2/1ppBPR2/1P2P2n/Np1bkq2/3rR2N b - - 0 2 illegal: No proof kernel
3Q2Rk/pN1bK2p/3p1r2/RNq1P2b/q1qN4/1Qn4P/pPpP2Bn/6B1 b - - 1 2 illegal: No possible last move, all moves rejected
3N2q1/1K2p1PQ/p4n2/2B1P1pR/3Bpb2/p2k1n1R/Pnrn2P1/rB3QN1 b - - 0 3 legal: proof: e4 b5 c4 d5 cxd5 g5 h4 f5 b4 Bd7 h5 Bg7 Na3 Be5 Qa4 Bf4 e5 bxa4 Rb1 Bc6 Rb3 Bb5 Re3 Be2 Re4 fxe4 Rh4 Bg4 Rh2 Bf5 Rh1 Bg6 hxg6 Bg3 Nh3 Bh2 Ng1 Bf4 Ke2 Kd7 d4 c5 g7 h5 d6 Ke6 d7 Kf5 b5 a6 b6 c4 d5 h4 b7 h3 d6 h2 Be3 c3 Nb5 c2 Bd4 a3 Nc7 Nf6 Ne6 Bd2 f4 Qc7 d8Q Nbd7 b8R Rh6 Qh8 Ng4 Rb3 Qd8 Rh3 Ndf6 d7 Qg8 d8B Rc8 B8b6 Rc7 Bbc5 c1N+ Kd1 Rc6 Kc2 Nd3 Kb3 Nb2 Bd3 Bc1 Kb4 Rc7 Ba7 Rc2 Ka5 Rh4 Nd8 Be3 Nb7 Ke6 Kb6 Kd5 f5 Bf4 Qh7 Rh5 Bb5 Rh6 Ba4 Kc4 Nd8 Rh5 Kb7 Rh6 Nf3 Kd3 Bac5 Rh4 Ra1 h1N Ng1+ Ng3 Rc1 Nd7 f6 Nh2 f7 Nf3 f8Q Nf1 Re1 Rh6 Rh5 N1d2 Re3+ Kc4 Rb3 Rd6 Rd3 Nf6 Re3 Rc6 Rd3 Rc1 Bc2 Ra1 Bb1 Kb5 Bb4 Rc2 Bbc5 Kc4 Rb3 Ne1 Rbh3 Nef3 Qf7+ Kd3 Qe6 Nd1 Qg4 Nb2 Qg3 Qe8 Qf2 Qg8 Qf1+
2rB2N1/4Nn2/2P1Kp1r/k2pP1pQ/1q1RBbR1/5Ppb/1P3p1r/B3r1Q1 b - - 0 1 illegal: Other
1R6/qNnr1p2/p1PrP3/2Np4/2PrkBpK/Q4NpQ/PnB4R/1b4r1 b - - 0 1 legal: proof: d4 h5 b4 e5 g4 hxg4 e4 exd4 f4 c5 bxc5 Na6 e5 Bd6 e6 Be5 fxe5 Nb8 Kf2 Ke7 Kg3 g5 c4 b5 h4 d5 c6 a6 h5 d3 h6 d2 h7 b4 Bd3 b3 Nf3 b2 Rh6 Qc7 Bc2 Ra7 Be4 Nd7 Qg1 d1R Qf2 Rd4 Nc3 b1R Qb2 Nb6 Rh2 Na4 Bf4 Nf6 Bc2 Rd8 h8Q Ne8 Qa3+ Rd6 Nd1 Nb2 Qh3 Qd7 Nf2 Nc7 Nd3 Rg1+ Kf2 Rb7 Rb1 g3+ Ke2 Kf8 e7+ Kg7 e8N+ Kg6 Ke3 Qe7 Ke2 Bf5 e6 g4 Ke3 Rd7 Nd6 Rb8 Nb7 Rbd8 Bh6 Be4 Kf4 Qc5 Bg5 Qa7 Bh6 Rd6 Bg5 R8d7 Bh6 Kh7 Kg5 Bf5 Kh4 Kg6 Bc1 Be4 Bf4 Kf5 Na5 Na4 Rb8 Nb2 Nc5 Bd3 Nab7 Be4 Bd1 Bc2 Nd3 Bb1 Bc2 Ke4 Ndc5+
3k4/2pB1Rn1/1B3N1n/2nP1q1P/2p1rp1p/1pPq1Q1P/bNQRq1B1/7K b - - 0 1 illegal: No proof kernel
1QRrb3/1N3pKP/PppN3B/2Pn3p/6Qk/RNp1b3/1p1nP1B1/q5b1 b - - 0 1 illegal: No proof kernel
5q1B/pQpRp2p/NB3Nn1/P3P3/K1b1Qp2/1rb3QR/PPpp4/k6r b - - 1 2 illegal: No proof kernel
1rqq1QK1/2b1B1br/N1Pp1p1Q/2RPkQ2/4q1BP/n1n2P2/1Nn5/1bR4r b - - 0 1 illegal: No proof kernel
1n1b3R/5Q2/1P1p1rQ1/r1bB1bNK/2R3R1/qqqPB1p1/1k1rPnP1/1n4N1 b - - 0 1 illegal: No proof kernel forced: bxLB
q2b3Q/1PkB2bN/1r2Pp1r/8/1qp1Q1b1/1N1nBPrR/Q1P2R2/1qn2n1K b - - 0 1 legal: proof: d4 e5 h4 exd4 a4 b5 axb5 g5 Be3 gxh4 Bg5 Bg7 Bc1 Bf8 e4 d5 b4 Kd7 g4 c5 b6 a5 b7 h5 b5 a4 f3 a3 Kf2 h3 g5 d3 b6 d2 g6 c4 e5 a2 g7 h2 Kg2 d4 Qe2 d1N Bb2 h4 Qe1 d3 Qe2 h3+ Kg3 d2 Bg2 Nf6 g8Q Nd5 Qe1 N5c3 Qf2 Ne3 Qe1 d1R Qf1 Rh6 Qe2 Rdd6 Qg7 Nf1+ Kf2 Be7 Bc1 Na6 b8Q Nb4 b7 Rb6 Qe1 Ne2 Be3 Nc1 Qa7 Kc7 Nd2 Bg4 Qh8 Rb8 Rb1 a1B Nb3 Qe8 Qa5 Bd8 Qa2 Qa4 Qe2 Qa8 Qd3 Bb2 Qe4 Rc8 Ne2 Rb8 Nf4 Bc3 Ng6 Bd4 Rg1 h1Q Nf8 h2 Bh3 Rc8 Nh7 Qg2+ Ke1 h1Q Ra1 Qgh2 Rg2 Qg3+ Rf2 Nbd3+ Kd1 Qh4 Rb1 Qe7 Ra1 Bh5 Bd7 Bg4 e6 Bg7 Rb1 f6 Ra1 Nb2+ Ke1 Rb8 Re2 Qb4+ Kf2 Qh3 Kg1 Nbd3 Rg2 Qh5 Rf2 Qhb5 Na5 Qb1 Nb3 Qb4 Kg2 Be7 Kg1 Rg8 Kg2 Bd8 Kg1 Nh2 Kh1 Nf1+ Rh2 Ng3+ Kg2 Bf8 Bb5 Bh3+ Kg1 Qb2 Qa6 Na2 Rf1 Qb1 Rh1 Nac1 Rf2 Rg5 Qa7 Bg7 Qa2 Rg4 Rhh2 Nf1+ Kh1 Rg3 Bd7 Bg4 Rh3
r2nB3/1Qqnp1NP/RBq1Pnn1/p2n4/P4P2/RK1k2r1/3Qb3/4bNqR b - - 0 1 illegal: No proof kernel
nQ3nRr/4rnKp/p1r2N2/P2b3P/R2B4/1NP1bq1k/B2R2QP/qn1n4 b - - 0 1 illegal: No proof kernel
NK5k/1RB1b1pP/2bNp1b1/1b1Bb1PQ/1BrQP3/1qn3P1/4r3/qRq4n b - - 0 1 illegal: No proof kernel
1rBkBQRn/r1p2pP1/b2R1N2/K3P2r/2P4B/nNn2Q2/3n1P2/2n1bq1q b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h3 g5 h4 gxh4 Kd2 h5 a4 d5 c4 b5 g4 h3 e4 d4 e6 h2 g5 d3 g6 b3 Kc3 h4 g7 b2 a5 b4+ Kb3 h3 Ka4 b3 e7 d2 e5 Qd3 a6 Nc6 a7 Nb4 Bg2 Na2 Qf3 d1N Be3 Ndc3+ Ka5 Ba6 Qf6 Nc1 Be4 Qf1 Nd2 b1N Qf3 b2 Bf5 Na3 Bg5 b1N Ne4 Nd2 Bh4 Rh5 Ne2 Rb8 Rg1 h1R a8Q h2 Rg6 Rg1 Nd4 h1Q Re6 Kd7 e8B+ Kc8 Rf6+ Kd8 Rh6+ Ne7 Nf6 Ng6 Nb3 Nh8 Bc8 Bc5 Qab7 Be3 Qb4 Rg6 Qf8 Bg5 Nd5 Rgb6 Ra2 R6b7 Nf6 Ra7 Rg6 Ndb1 Rh6 Bd2 Rb2 Be1 Ra2 Ng6 Rh8 Nd2 Rg8 Nh8 Ra1 Nab1 Ra4 Na3 Rb4 Qh2 Rb6 Qhh1 Rd6+
q1rR4/p2QBqpr/n3n1Pk/R5r1/P2N1rPb/QN2b2B/3P4/qbRK4 b - - 0 1 illegal: No proof kernel
Rb1k2qR/b2rrb2/1N2r2p/Pq3p2/N4PQ1/1N2nK2/1P1q1bnP/2BQ1B2 b - - 0 1 illegal: No proof kernel
3KQ3/1QPP1pqk/2Bq1nN1/3r2np/1rR1q1r1/N2QbP1P/n7/1R1rB2b b - - 0 1 illegal: No proof kernel
N1bK4/r2n2p1/1QP1B1bq/2R3Rr/p1k5/P1nrbqB1/bPR2NP1/1Q4n1 b - - 0 1 illegal: No proof kernel
1k1r1r2/2Q3b1/rbnpKN1n/r3b2b/1qQ2p2/R2B1P1N/3PP1P1/B3Nb1R b - - 0 1 illegal: No proof kernel forced: bxLB
N2Qq2b/q2qBpnN/1p3Pn1/1P1bBP2/1krRnP2/R5Q1/1qn3BK/3r4 b - - 0 1 illegal: Other
1N3b2/nq2R1P1/bQr3p1/P5r1/R1npn1bB/BQ3Np1/B1KP2Pq/1r3k2 b - - 0 1 illegal: No proof kernel
Bb1r4/1k1q1p1R/1q2P2n/2p3N1/2R1pP1K/Q1BP4/1nbnP2N/3qrQNb b - - 0 1 illegal: Other
5rb1/PrBn1NqB/np2bp1b/Q6K/1PkR2p1/2N1nP2/2r2R1P/q4R1Q b - - 0 1 illegal: No proof kernel
K2R4/nR1pB2p/Q2b1p2/3q2N1/N2P1q1r/1r1b2QP/k1q2PnP/2B1rNn1 b - - 1 3 illegal: No proof kernel
3k4/5Bpn/pNr1P1Pn/P3Q1r1/R1n3r1/q1P3BK/2R1r1p1/2bQRNrb b - - 0 1 illegal: No proof kernel
2nr2Q1/3NrRn1/1P4p1/1R3pPB/1Bb3pn/2NnnP1b/1k2P1RK/2b1Qq2 b - - 0 1 illegal: No proof kernel
1bkn3B/1pb2rBN/2QrP1b1/7b/p2N3q/KPR3Pn/PQp3r1/1R1B2b1 b - - 0 1 illegal: No proof kernel
3R4/2p3p1/K1nPbBrQ/4b1bQ/2Pq1RBp/nP4k1/3N1rPN/b1rbQ3 b - - 0 1 illegal: No proof kernel
q3nKR1/r2p2r1/3P4/Br1nk3/1Q1Rp1P1/1B1nPbB1/N3b1Pp/bNb4Q b - - 0 1 illegal: No proof kernel
N1R1r3/BQp2p1N/1bP3Qk/5B1r/1n1n1P2/1b2Rp1P/P1r1qB1n/Kn2b3 b - - 0 1 illegal: No proof kernel
1N6/B1pnQ2q/p1PQKbrR/1p4P1/k2PN2B/r4n1n/PqB1n3/1b2R1n1 b - - 0 1 illegal: No proof kernel
3QN3/R3bK2/1n1Pr1pq/5pPp/r2nNP2/2n3QB/b1PBr2k/Qq2rR2 b - - 0 1 illegal: No proof kernel
1n6/5Bqb/B1pB4/1NRrn1P1/1Kp1RrPq/2P2np1/3n2P1/q1NkbQQ1 b - - 0 1 illegal: Other
Q1Bn1R1Q/kn1Rr1P1/1q3R1P/1n1qBpp1/2p1b1P1/2NN2bb/n1P3r1/K7 b - - 0 1 illegal: No possible last move
1N2QK2/3R3N/1n4bn/1rpB2B1/Bkp1bpr1/3PqP1q/P1PbbR2/q2Q4 b - - 0 1 illegal: No proof kernel
2B2B2/K1p3rk/N1b1p1qn/3pbb1N/1nPPP1P1/3Q2q1/N1R1rr2/3R1Q1r b - - 2 3 legal: proof: g4 b5 a4 g5 c3 h5 axb5 h4 f4 gxf4 Qc2 Na6 Qd3 Nb8 Qg3 hxg3 d4 f5 Kd2 Kf7 Kd3 Kg6 Kc4 a5 b4 d6 h4 g2 e4 a4 b6 d5+ Kb5 f3 h5+ Kh7 h6 a3 b7 f4 Rh2 a2 Nh3 g1Q Ba3 Qg3 Rc2 Nc6 b8N f2 Na6 f3 Nf4 Qd6 Nh5 Bf5 Bd3 f1R Be2 Kg6 h7 Nh6 Bc4 Rg8 h8Q f2 Qf6+ Kh7 Bd3 Nb8 Ka5 Rg5 b5 Rg7 b6 Nc6+ Kb5 Nb4 b7 Re1 b8Q f1B Ka5 Ra7 Qb5 Re2 Qc4 Rf2 Be2 Qc6 Qd3 e6 Qf7 Bd6 Qf8 Qa8 Qf6 Be5 Kb5 Nc6 Bf8 Nb4 Ka5 Qe8 Qf7 Bg6 Qff3 Bf5 Qh1 Bh3 Qf1 Qg6 c4 Rb7 Rc3 Bd6 Qc1 Bf4 Nc5 Nc6+ Ka6 Rb2 Bd1 Bf1 Ba4 Nb4+ Ka7 Be5 Na6 Be2 Bd7 Bd1 Bc8 Ba4 Qg1 Rbd2 Rc2 Bc6 Nc3 Rde2 Rf1 a1R Na2 Rd1 Qh1 Rdd2 Ra1 Rd1 Qg1 Rdf1 Rd1 Rfe1 Qg2 Rh1 Qf1
1N1B3n/1N4pk/K1B2qPq/1p1pR2P/3P4/b1q3rN/QP1R3r/1bnq2Qr b - - 2 3 illegal: No possible last move, all moves rejected
b3K2R/B1r2p2/1RNQ2kq/7N/pBnn1Ppq/PPq1P3/4Qr2/2r1r1bB b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g3 h5 g4 hxg4 Kd2 g5 Ke3 a5 Kd4 d5 h4 c5+ Kc3 g3 f4 a4 h5 d4+ Kc2 c3 Kd3 g4 Ke4 c2 a3 d3 b3 d2 h6 c4 e6 g2 Kf5 c3 h7 Nd7 e7 Nh6+ Kg5 Nb6 Kf6 Bb7 Nf3 g1Q Nd4 Ra7 Bg2 Nc4 Nc6 Nf5 Rh6 Qh2 Bh1 Ba8 Bb2 c1R e3 c2 Bd4 Rc7 Qe2 d1R Nc3 Re1 Ba7 Nd4 Ne4 Qh3 Rg6 Bh6 Ng3 Bg5+ Kg7 Bh4 Nh5 Bf2 Kf6 Bg1 Kg7 Rf8 h8B Qh4 Rh6 Qd6 Ra2 Qe6 Rf6 Kd7 e8Q+ Kd6 Qb8 Rd8 Rg6 Rd7 Kf8 Qef6 Qd2 Ke6 Qe2 Kf5 Ke8 Qg7 Re6 Qh6 Qd8 Rd5 Qd6 Rc5 Bf6 Kg6 Rb2 Rf1 Ra2 Rce1 Ra1 c1Q Be7+ Kf5 Rg6 Qc3 Rc1 Rf2 Rg8 Ne6 Rh8 Kg6 Rc2 Rd5 Bf8 Rdd1 Rd2 Rc1 Rd5 Qcf6 Rb5 Qa1 Rb6 Qc3 Qdd1 Nd4 Bb4 Nc2 Qd5 Nd4 Qd6+
1q6/1rB5/Pbp3NQ/bN1bR2P/r2b1Knp/q3nQRP/1NP4p/1B2k1q1 b - - 0 1 illegal: No proof kernel
NR3q2/1q1ppRP1/QN3Bk1/2p1nn2/2Pr2nb/3BNr2/1nQP1r1P/K2b4 b - - 0 1 illegal: No proof kernel
2Knq1q1/b2p1rP1/k2qb3/N1RR2nQ/2p4N/p2B1b2/P1PP2b1/1B2Rr1Q b - - 1 3 illegal: Other
1b3b1R/N1qp1p2/PP2b2R/B3r2p/BnrknP2/1Q1P4/B1b2N1K/rq1Q4 b - - 0 1 illegal: No proof kernel
Nb1bRR2/1kp1q3/1n1N1Q1B/2KR2P1/bpn3Q1/1Pb4r/1bPrP1p1/5b1B b - - 0 1 illegal: No possible last move, all moves rejected
3Q4/q2p1B1K/1b4Q1/4N1B1/r1nPPnpP/B2Rk1Pp/b2bb3/1NnrnR2 b - - 0 1 illegal: No possible last move, all moves rejected
1k4Q1/2prN2Q/4BR1r/1bB3p1/R1P1PN1P/1nnbbQpK/4q1P1/r3rb2 b - - 0 1 illegal: No proof kernel
1rBqrb1k/1R3Qp1/bN3Q2/4nr1P/pBPRn1PK/2N4p/P1b4r/3N2b1 b - - 0 1 illegal: No proof kernel
KQ4Rn/1ppnBrb1/n1B1N3/1P2r3/k4QP1/1NP5/pR2n1P1/Rb1q1bb1 b - - 0 1 illegal: No proof kernel
2b2R1K/1r1p4/P1qQ3B/1BNr2pR/NQ2kpPp/7P/Pn2b3/b2rQ1nn b - - 0 1 illegal: No possible last move
n1R2n1r/p1rN4/1p1Q1q1n/1PNrb1p1/5R1Q/Kp1Bb1P1/b1P2P2/k5BB b - - 0 1 illegal: No proof kernel
1Q6/Rp1q1N2/p2bn3/2pb3P/1B1rB1r1/K3P1p1/Q1PbR1P1/Nkn1R1rn b - - 0 1 illegal: No proof kernel
1B1n4/1r1R1p2/p3rbn1/K1N1R1r1/2qp1bnB/P2p3b/P2PRP1k/2QQ2N1 b - - 0 3 illegal: No proof kernel
3rNNn1/p1Pbn1Q1/2Rr1B1r/q2Bp3/bk2p2p/1Q1P3P/P2K3b/2QR2n1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 c5 bxc5 f5 Ba6 fxg4 Bb5+ Qd7 Bf1 Qd8 c4 Kd7 f4 Kc6 h3 h5 d3 b5 f5 b4 f6 h4 f7 b3 Bb2 e6 Qc2 g3 Bg2 Bd6 f8Q Qa5+ Nc3 Rh6 Rd1 Bd7 Nf3 g6 Ba1 b2 Ng5 b1B Qg7 Be5 Bf3 g2 Nh7 g1R+ Kd2 Bh2 Nf8 Rg3 Qc1 Bc2 Bg2 Re3 Rhf1 Rg3 Rf6 Ba4 Bh1 Rg5 Bb2 Rd5 Bf3 Qc7 Nb5 Rd6 Qc2 Qb6 Nc7 Qb5 Ne8 g5 Bh5 g4 Bf7 g3 Rg6 g2 Bf6 Kb7 c6+ Kb6 c7 Kc5 c8Q+ Kb4 c5 g1N c6 e5 Bd5 Qb6 c7 Qa5 Qa6 Nc6 Qc1 Nd4 Qac6 Nf5 Q6c2 Nfe7 Bg5 Rb6 Rc6 Rd8 Bf6 Ra6 Rc3 Re6 Rc6 Rd6 Qb3+
5q1R/kP1P3p/pn4q1/K1p1N1bb/1nP2rBp/1R3NQP/6r1/1bQ1r1BQ b - - 0 1 illegal: No proof kernel
1Qr2QN1/1pBn4/1P3qqp/1k2pb1P/3bBP2/K1RR1p2/Pr4R1/N2n1nb1 b - - 0 1 illegal: No proof kernel
3K2b1/1p3PpQ/nP1Bp3/Pr2PnRr/Qb3N2/1BrRqp2/3nk2q/3N2B1 b - - 0 1 illegal: No proof kernel
2r3n1/pkP5/2pq1rNR/P1P5/R1Q1r1N1/1pKBb3/qP1B1pQ1/1b1Nnq2 b - - 0 3 legal: proof: f4 g5 d4 e5 h4 exf4 d5 c6 d6 Qc7 dxc7 gxh4 Kd2 d5 a4 Kd7 c4 b5 g4 h5 e4 f5 a5 d4 c5 d3 e5 f3 g5 h3 g6 f4 g7 f2 Kc3 b4+ Kd4 d2 Bd3 f1R Be2 h2 Qb3 d1Q+ Qd3 h4 Ra3 f3 Nh3 b3 Ra4 Na6 Ng1 h3 Na3 Nb4 Nc2 Rh4+ Bf4 Qa1 Qa6 Nd3 Bd1 Qa2 Ne2 Ne1 Kc3 Rb8 Bc1 Re4 Qc4 Ba6 e6+ Kc8 e7 Kb7 e8N Rc8 Bf4 Bd6 Be3 Bf4 Bd2 Be3 Nf4 Rf2 Nf6 Bb5 Qe6 Bd3 Ng4 Rf1 Qc4 Rf2 Nd4 Bb1 Nc2 Rf1 Ng6 Rf2 Rg1 h1Q Be2 Qh2 Bd3 Qd6 Rf1 h2 Rh1 Ne7 g8Q Rf1 Rg1 h1Q Qg7 Qg2 Rh1 Ng8 Rh6 Qh3 Qe7 Rf2 Qg5 Qf1 Qgd5 Re2 Qg5 f2 Qgd5 Re6 Qde4 Rf6 Qg2 Bg5 Nce3 Bf4 Nc2 Re4 Nce3 Bg5 Nd1 Bf4 N4e5 Be3 Ng4
2n1q3/BPR1Nk2/q7/pq2rp1p/p3Q2P/P4P1r/rn2BQRB/1N2b1bK b - - 1 3 illegal: No proof kernel
BK1R1qrQ/2pp3q/p2PQr2/2P1n2N/B6b/1Rkpr2q/P1P1Qn2/1bN5 b - - 0 3 illegal: No proof kernel
2Q1n1r1/3r1P1K/bp1NBQ2/b1r3pP/1Pb2nq1/2RRpqk1/4P1pN/B6N b - - 0 1 illegal: No proof kernel
qn2nB1Q/3BbRr1/4kqNp/pPr3q1/4bpP1/Np3PrP/8/Q1R1K2N b - - 0 1 illegal: No proof kernel
3R4/rpp2Bk1/3b1qrq/N1Qn2N1/QP4q1/1bR1Q1Pp/pKP1rn1P/7B b - - 1 3 illegal: No proof kernel
1B2b2N/1QR2n1p/p3pq2/P1q1N2q/3k1rPr/1bP5/1R2KbpP/nB2BQ2 b - - 0 1 illegal: No possible last move, all moves rejected
b6b/1qR1r1p1/b2K1n2/pP1n3Q/Q1qB1N1p/PpP1r2R/3B2PN/1B1k1n2 b - - 0 1 illegal: Other
2Bbq2q/N1p1P1pN/4rB2/1nn2Q1R/kpQb4/bP2prP1/2PR2r1/Q3K3 b - - 0 3 illegal: No possible last move, all moves rejected
r3rr1R/2rQppB1/1n1bNQ2/3Rp2p/5PPP/2k3q1/BN2P1n1/1K3Nrb b - - 0 3 illegal: No proof kernel
1B1Rr3/pk2B2r/1NpN1KR1/1bn2p2/b2PNP2/2b1p3/PnQ1PQqn/b7 b - - 0 3 legal: proof: g4 h5 b4 hxg4 b5 c6 bxc6 b6 c7 Ba6 Nc3 Bb7 Nb1 Bc8 c4 Rh7 c5 Nf6 c6 Rh4 Bg2 Ba6 c8N Ng8 c7 Rh8 Bc6 dxc6 f4 Kd7 Kf2 g5 Kg3 e5 h4 f5 h5 e4 h6 b5 h7 b4 d3 b3 Rh2 b2 Nd2 b1B Ba3 Bb4 Qf1 Bc2 Qb1 Bc3 Nc4 Ne7 Rh3 Bb5 Qe1 Nd5 Bb4 Na6 Be7 Nb6 Rh1 Na4 Qc1 N6c5 Rh6 Qg8 N8d6 Re8 Rg6 Nb2 Nf3 Bca4 Qc2 Qg7 Nfd2 Qg8 Nf7 Kc8 Nb6+ Kb7 Rd1 Qg7 Kg2 g3 Kh3 g4+ Kh4 g2 Kg5 g1B Nd6+ Ka6 N2c4 g3 Nd2 g2 c8Q+ Nb7 Qe6 Nc5 Qd5 Bgd4 Qg8 e3 N2e4 g1N Qd5 Rhf8 h8B Rf7 Rd2 Qg8 Be5 Rh7 Kf6 Nf3 Rd1 Nh2 Rd2 Rg7 Rd1 Qh7 Qg8 Qh3 Qh8 Qg2 Qh4 Rh7 Qf2 Nc4 Rg8 Ba1 Rg1 Bdc3 d4 Nb2 Rh8 Qf1 Rg6 Qg2 Rhg8 Ra8 Rd8 Rb8 Nf7 Rc8 Bb8 Kb7 Rd5 Rch8 Rd8 Re8 Nfd6+
nR1K3Q/b3p3/1p2pN2/NP2P3/1rP4Q/3kN3/1pqbRnP1/rnBB1n1b b - - 0 1 illegal: No proof kernel
1nn2Bb1/1rqP1pp1/1p1RN2P/1k2b1RK/2N2P2/Q3p1Q1/1n2P1r1/1B1n2Qb b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g3 axb4 g4 hxg4 h4 Kd7 f4 c5 Kf2 e5 Kg3 e4 d4 c4 a4 e3 d6 Kc6 d5+ Kc5 h5 b6 d7 b3 a5 b2 a6 c3 d6 c2 a7 Qc7 Kh4 g3 d8Q g2 d7 Bd6 Nf3 g1N Ng5 Be5 Bh3 Bb7 Na3 b1B Nc4 Kb5 Ne6 Ne7 Ba3 c1N Bf5 Nh3 Qg1 Nc8 Bf8 Nd3 Qdg5 Nb2 Q5g3 Nf2 h6 Nfd1 Rh2 Bh1 Rg2 Rg8 Kh5 Rh8 Bh3 Bh7 Bf5 Bg8 Bb1 Nc6 Na5 Rb8 a8Q Rb7 Nc4 Nb8 Qa7 Bh7 Bb4 Re8 Bf8 Bg8 Ra3 Re7 Rd3 Re8 Qa3 Re7 Ng5 Re6 Rd6 Rf6 Ne6 Rg6 Qf3 Qd8 Rg5 Qc7 Rf5 Rg4 Rg5 Rg2 Qg3
n2R2K1/r2pP1n1/pBb2Qpq/1BN1bnN1/2P2r1Q/P2P2p1/1R3k2/1bb1R3 b - - 0 1 illegal: No proof kernel
Nk2N3/r2ppPB1/4n1Q1/nq5r/8/1Rbn2p1/np1PP1P1/bKbR1QNB b - - 2 3 illegal: Other
1bq1N1nN/1Pk1B1rp/3b2p1/3K2Pb/2Bp2Q1/2bR1nr1/2QPpP1N/1q3R2 b - - 0 1 illegal: No proof kernel
b3Rb2/3Qp2P/r2p1pN1/p1QnP2q/1Rqn3N/2P2P2/rBb5/Bb1k1B1K b - - 0 1 illegal: No proof kernel
K1N2N2/2q5/4R1bP/1N1prpp1/1p2nbQq/Q1nP1R2/PrbB1P2/3k1b1B b - - 0 1 illegal: No proof kernel
5b2/p3rpk1/3b1ppq/PR4qB/Q3N3/1rnK1PQ1/N3PBP1/rRr1Bn2 b - - 1 3 illegal: No proof kernel forced: bxLB
K4R2/3Np1br/Bp4pp/NPBBP3/Q5P1/P1b1q1Q1/b2qr1b1/1R2qk1n b - - 0 1 illegal: No proof kernel
nrQ1Kb2/N1p3Np/2N2pBb/4p3/k3Qb1P/q3q1BP/bn2PP2/R4Rq1 b - - 0 1 legal: proof: b4 a5 c4 axb4 c5 b5 c6 Ra3 h4 Rh3 gxh3 dxc6 Qa4 c5 Qd1 c4 a4 Kd7 d4 Kc6 Kd2 e5 Ke3 g5 Ke4 b3 a5 f6 a6 b4 a7 Kb5 a8N g4 d5 g3 d6 c3 Kd5 b2 d7 c2 Ke6 g2 Kf7 b3 Nf3 g1B Qe1 Bh2 Ng5 Ne7 Qd1 Bf4 Qd4 Nf5 Qc3 Ne3 Na3+ Ka4 Qd3 b1Q Ne6 b2 Qe4+ Nc4 Bg2 Qa2 Nb5 b1Q Ng7 Qa3 Nd4 Nb2 Rf1 Ba6 Be3 c1B Bf3 Bh6 Bf4 Bc8 Bg3 Bcf4 Bh5 Qd3 Qg6 Qe3 Qe4 Bb7 Bg6 Bd5+ Nge6 Qc8 d8Q Ba2 Ke8 Nd7 Ng7 Qb7 Qc8 Nb6 Qd3 Qg2 Nc6 Qg1 Qdf5 Nd7 Nb6+ Kb3 Nc4 Nb6 Na7 Na8 Na5+ Ka4 Qe4+ Bb4+ Kd7 Qab3 Qa6 Rb8 Qc8 Qbd3+ Ke8 Qa3 Qd5 Be7 N5c6 Bf8 Qe4+
7Q/1RBQrP2/nR4k1/2rr1p1p/p1bNp3/qB2PRbP/1p5P/nK3Nn1 b - - 0 1 illegal: No proof kernel
2r1b3/p1Pn1nb1/pR2qBnk/1p1R1b2/P2NPp1Q/5P2/2pKN1Q1/3B2rB b - - 0 1 illegal: Other
4N3/bk1N1p1r/nr1n2PB/Npp1p3/2P1PPq1/1R4Q1/1Kb1RrQp/2Bb4 b - - 0 3 legal: proof: b4 d5 h4 g5 hxg5 a5 e3 axb4 c3 d4 Bc4 d3 Bb3 Qd4 Bc2 dxc2 Nf3 Qd5 Ng1 Qd8 a4 Kd7 d4 Kc6 Kd2 h5 g4 e5 f4 b5 a5 b3 d5+ Kb7 d6 c5 c4 h4 Kc3 b2 d7 h3 a6+ Kc6 a7 h2 g6 Qc7 d8B Bd7 e4 Kb6 g5 Kc6 g7 Qc8 Qf1 Rh4 Nf3 Be8 Nd4+ Kb7 Qg2 Bd6 Re1 Na6 Ra3 Bd7 Nc6 Rh7 Re2 Bg4 Rb3 Nf6 g8Q Rb8 a8N Ne8 Nb6 Bf3 Qg3 Qg4 Nd7 Bc7 Be7 Nd6 Bf8 Bb6 Bh6 Ba7 g6 Kc7 Qh8 Rb6 Qf6 Kc8 Qg5 Kb7 Qg2 Qe6 Q5g3 Qg4 Nd2 b1B Kb2 Kc8 Nf1 Kb7 Rf2 Bd1 Ne3 Be2 Nf5 Bd1 Be3 c1R Re2 Bbc2 Ng7 Ra1 Bc1 Ra4 Ne8 Ra3 Rb4 Rf3 Rb3 Rf2 Na5+
4N3/1B1nb2r/1BP2prR/pNPKb1p1/2Q1p3/P1rR1nQb/p5P1/k3qQ2 b - - 0 1 illegal: No proof kernel
1N2nr1r/1p3B2/1P1B1Q2/qp3qpN/b1PK4/k4p1p/1R1nBP1P/1qR2b1Q b - - 0 3 illegal: No proof kernel
1Q2R1nr/qQ1pPbbP/B2p2k1/3pp1n1/R2b4/1qr3Bp/QN2PN1P/6K1 b - - 0 1 illegal: Other
3Kn1b1/B2pB2p/pQ2RnrP/PPb2qR1/3P4/Q2r4/N2p2p1/1NqNr1k1 b - - 0 3 legal: proof: d4 e5 g4 b5 Bg2 f5 c4 bxc4 gxf5 Ne7 Be4 Ng8 Bc2 e4 Bd3 exd3 Kd2 Kf7 Ke3 Kf6 Ke4 g5 Kd5 c5 a4 d2 h4 g4 b4 c3 e4 c4 f4 a6 a5 g3 h5 g2 h6 c2 e5+ Kf7 e6+ Kf6 e7 c3 Kd6 Ra7 Ne2 Rb7 Rh5 Qe8 Ba3 c1R Qb3 c2 Rg5 Rc7 Nec3 Re1 Nd1 c1Q b5 Qg6 Bc5 Nc6 Ba7 Bb7 Qa3 Ne5 Qc5 Qc3 Qb6 Bd5 Ra3 Qb2 Re3 Rc3 Re2 Nc4+ Kc7+ Nd6+ Kd8 Rd3 e8N+ Kf7 f6 Qf5 Re6 Qc1 Nc7 Ne8 Ne3 Bc4 Nd1 Bc5 Nd5 Bb3 N5c3 Ba2 Rh5 Kg6 f7+ Ngf6 f8B Rg8 Be7 Bd5 Na2 Bb3 Rh4 Bd5 Rg4+ Kh5 Rg5+ Kh4 Bb8 Kh3 Ba7 Qe4 f5 Kh2 Qd6+ Kg1 Qb6 Ng4 f6 Qf5 f7 Ngf6 f8Q Rg6 Re3 Bf7 Re6 Bg8 Qg7 Ng4 Qe5 Ngf6 Qg3 Rb3 Qc3 Ra3 Qb2 Rd3 Qa3
1nK1k3/4rbP1/1pP5/QQ1rp1pb/1Rq1P1N1/1P3Np1/Q1Bp3B/qnbR4 b - - 0 1 illegal: No proof kernel
3RR1n1/pQ2Ppq1/1bBpbP1n/5rq1/k2PK1BN/P2rpn1p/4Q3/4R2N b - - 2 3 illegal: No proof kernel
B4RNr/B2p3r/Qn2pQ1b/2Rb1n2/P1Q2Ppp/2pr2P1/2Pk1K2/rq1N4 b - - 0 1 illegal: No proof kernel
4n1bQ/p5N1/1B1r1p1b/1qrb2p1/PnbRP1QP/3B1PpK/Nk4p1/R3R3 b - - 0 1 illegal: Other
1R3BqR/1pb3np/4rpr1/1p4rN/p2KnQbP/PP2N3/2p2B1P/1Q3B1k b - - 1 3 illegal: No proof kernel
4B1K1/3nkpp1/1qpb2P1/2BrPpNp/NpP4r/4r2b/2Q2QNP/R4R1n b - - 1 3 legal: proof: d4 a5 f4 c6 b4 axb4 f5 e6 d5 exf5 d6 Qc7 dxc7 Ra5 Nc3 Ra6 Nb1 Ra8 Kd2 d5 Kd3 h5 Kd4 b5 Ke5 b3 a4 b4 g4 b2 e4 d4 a5 d3 g5 d2 a6 Bb7 c8N Be7 a7 Kd7 g6 Bg5 Nb6+ Kd8 Bc4 Nh6 Nf3 Bc8 Nd5 Rg8 Nbc3 b1Q Nf4 Ke7 Be6 Re8 Ng2 Ba6 Na4 Bf1 c4 Bh4 Qc2 d1R Bd7 Bg3+ Bf4 Rd4 Ng5 Qb3 Rg1 Qe3 Rh1 Rd8 Be8 Qg1 Ne3 Bh3 Ng2 Rd2 Rf1 Qb6 Ra1 Re2 Rhf1 Re3 Qf2 Rd4 Qc2 Na6 Qf2 Rc8 a8Q Nb8 Qa5 Rcd8 Qc5+ R8d6 Qc2 Be1 Bg3 Bd2 Bf2 Ng4+ Kf4 Bc1 Bg1 Nf2 Ke5 Rd2 Qd4 Nh1 Qdb2 Rf2 Qa2 Rf4 Bf2 Red3 Bc5 Re3 Qf2 Rh4 Qad2 Kd8 Qc2 Rdd3 Bd4 Nd7+ Kd6 Kc8 Ke7 Bd2 Bc3 Rd5 Bd4 Bc3 Bc5 Be5 Bd4 Nc5 Kf8 Kd8 Kg8 Bd6 e5 Nd7 Bc5 Ke7 Ra3 Qc7 Ra2 Qb6 Raa1
kB3qr1/1pr2p1n/1PNq3p/2Qb1P2/1K2PpN1/2Q1p3/p2RPn1R/2b1B1N1 b - - 1 3 illegal: No proof kernel
4N2N/ppknp3/nq1P1bp1/P5Rq/2r1p1P1/2Q1PB2/1Qp1B3/n1B1rRK1 b - - 0 1 illegal: No possible last move
Nkq5/4K3/2pp2bp/p3Q3/2nP1BR1/Pq1pPNp1/2n1r2P/1B1QbqQR b - - 0 1 illegal: No proof kernel
3QRB2/bPQ1pn2/pp4QR/np2r2b/P3p3/qPp3kN/N1P1p3/KB3b2 b - - 0 1 illegal: Other
1Rq5/p1Qn1p1k/Pp4p1/1P1n1Rr1/4B2p/p1N1nP1p/b1N1Q1Pb/1B2K1N1 b - - 2 4 illegal: Other
1b3nrR/ppp1Rn2/4n2q/1r1r1kp1/1PRBp3/1BpbP3/K1P2QP1/1N4NQ b - - 0 1 illegal: Other
K1BbN1bn/2rnN1RQ/pr2Qp1p/P1b1q1pP/4kP1R/7p/3p1BP1/2B2q2 b - - 0 1 illegal: Other
Nq2qk2/n1Rb2R1/3Pbb2/1bP2rN1/rB4B1/P7/1P5K/Bn1r1QB1 b - - 0 1 illegal: Other
4R3/2b1R3/4N3/RBPq1n2/br1pn1NP/bQr1PRP1/3b2rk/1K5B b - - 0 1 legal: proof: f4 b5 d4 e5 fxe5 c5 a4 cxd4 axb5 Qb6 g3 Qd8 Kd2 h5 Ke1 h4 gxh4 g5 Bd2 g4 Be3 Qc7 Bc1 Qd8 c4 g3 hxg3 Ba3 Bd2 Bf8 Bc3 dxc3 b4 Ke7 e3 Ke6 b6 Kf5 b5 a5 e6 d5 e7 a4 e8B c2 Kd2 c1B+ Kc2 a3 b7 a2 b6 Nf6 Qe1 Kg4 Bd3 Ra4 Qf2 Ne4 Bf1 f5 Qe1 f4 Ne2 f3 Nf4 f2 Nd2 Rb4 Bg2 f1R Ne6 Nc6 b8R Ne7 b7 Nf5 Nf3 Bd7 Qc3 Bd2 Qb3 Rf2 Rhf1 Ba4 Bh1 Kh3 Ne5 Rg2 Rf3 Kh2 Bb5 d4 Ra8 Bd6 b8R Bc7 Ra7 Qd5 Re8 Rg8 Ra5 Rf8 Raf1 a1B Kb1 Bb2 c5 Ba3 Re7 Rb8 R1f2 Rc4 Re8 Rc3 Re7 Nfd6 Rf8 Rb6 R2f3 Nf5 Rfe8 Rb8 Be2 Rb4 Bd3 Bd6 Bb5 Bc7 Ng4+
2q3nk/NP1P3P/PpN1QbK1/2b2Np1/1p3q1B/n4R2/1p1bB3/2R1N3 b - - 0 1 illegal: No proof kernel
n4BN1/1KR3Rn/3r2q1/4Bk1P/r3B3/1b4QP/1NP1P1q1/Bbrr2br b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 exf4 Rxa5 Be7 Ra7 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 d5+ Kf3 g5 h3 f5 b6 g4+ Kf2 f3 b5 f4 b7 d3 b6 d4 Qe1 d2 Ra1 d1R Ra4 d3 Bd2 Rh6 Bb4 d2 Bc5 Qd3 Na3 Qg6 Rc4 Nd7 b8B Rc1 b7 d1R Bca7 Nb6 Rh2 Kf5 Bg2 Be6 Be5 Nf6 b8B Nh7 Rc7 Bb3 Nc4 Bc5+ Bd4 Ba2 Nb2 Bb1 Bh1 Qf7 Rg2 Rd6 Rg3 Qg6 Bg2 Nd7 Bb6 Ra4 Ba5 Nb6 Bb4 Na8 Ba3 Bb4 Be5 Bc3 Ba7 Ba5 Bad4 Bb6 Qc3 Rd7 Bf8 Rd6 Qe1 Bc5 Kf1 f2 Nf3 Bb6 Nh2 Bc5 Bc6 Bb6 Kg2 f1B+ Kf2 f3 Ke3 f2 Qc3 Bg2 Be4+ Ke6 Qe1 f1R Qf2 Bh1 Rg2 g3 Ng4 Rg1 Nf6 Rgf1 Rg1 g2 Ng8 Rfe1 Qg3 Ba7 Rf1 g1Q+ Rf2 Qf1 Rff7 Qg2 Rg7 Rg1 Kf4 Bc5 Nd3 Rge1 Ba1 Bg1 Nb2 Bh2 Bd4 Qg1 Bd3 Bd5 Be4 Qg2 Ke3 Rh1 Be5 Rde1 Kd3 Bg1 Kc3 Rf1 Kd3 Bb3+ Kc3 Raa6 Kb4 Rfd1 Kb5 Ra7 Bd3 Ra4 Be4 R6d2 Kc6 Rd3 Bf3 Kf5+ Kb7 Rd6 Be4+
1bBB1B2/2P1q1R1/Nr1b1nn1/2b3P1/1QN2P2/r2q3P/2n1B1rb/RK3k2 b - - 0 1 legal: proof: d4 b5 f4 g5 fxg5 f5 a4 c5 axb5 cxd4 Qd2 f4 Qd1 f3 g4 h5 g6 Bb7 g5 f2+ Kd2 Bf3 exf3 Rh6 Qe1 Bg7 Qe6 Rh8 Qg4 hxg4 Kd1 Bf8 b4 a5 c4 e5 Kc2 Ke7 b6 Kd6 b5 Kc5 b7 d5 h3 e4 f4 d3+ Kb2 Kd4 c5 g3 c6 a4 b6 a3+ Ka2 d2 g7 Ke3 Bb2 d1N Be2 f1R Bg4 Kf2 Be6 e3 Bd4 g2 Bf5 Nf6 g8B Qe7 Bge6 Rh6 Nd2 Nbd7 b8B Ne5 b7 Ng6 Bb2 e2 Bb1 e1B Bc8 d4 Be5 d3 b8Q Ne3 Nc4 d2 Bd3 d1Q Qb4 Nc2 Nf3 g1B Be2 Bh2 Bb8 Rg1 Nfe5 Qd3 Nd7 Rg2 Nc5 Ra5 Kb1 a2+ Kc1 Ra8 Bc7 Ra3 Bd8 Bc3 Rb1 a1B Na6 Bd4 c7 Ba7 Re1 Bb8 Be5 Bd4 Ra1 Bc5 Kb1 Qe8 Bc3 Bfd6 Bb2 Qe7 Be5 Ne4 Bg7 Nf6 Bf8 Qe8 Bf3 Qe7 Re4 Kf1 Re6 Qe8 Re7 Qd7 Rf7 Qe7 Rg7 Ne4 Bf5 Be5 Bc8 Nh4 Bfg4 Rb6 Nd6 Ng6 Nc4 Nf6 Bf3 Bed6 Be2+
K7/4P2r/bB2b2N/1br2P1P/1p3b1n/kn1n4/bqR1P1N1/QR3BNN b - - 0 1 legal: proof: f4 e5 fxe5 a5 d4 h5 b4 axb4 g4 c5 Qd3 f5 gxf5 cxd4 Qh3 Kf7 Qxh5+ Ke7 Qh7 Ke8 Kd2 Ke7 Kd3 b5 Ke4 d5+ Kf3 d3 c4 d4 Ke4 d2 a4 d1B h4 b3 c5 b2 a5 d3 c6 d2 h5 Nh6 c7 Ba4 a6 d1B e6 Kd6 e7 Kc5 a7 Kb4 Na3 b1B+ Ke5 g5 Qf7 g4 Qd5 g3 Ra2 g2 Rc2 Rh7 Qa2 Ba6 c8N Qd2 Qa1 Ba2 Nd6 Nd7+ Ke4 Rb8 a8N Nf7 Nb6 Rc8 Nbc4 Rc5 Ne3 Bh6 Ng4 Nfe5 Nac4 Nd3 Nce3 Bf4 Nf7 B4b3 Kd4 Be6 Nf2 Ka4 Bb2 b4 Nh6 Kb3 Bc3 Ka3 Ke4 Qc1 Bf6 Qb2 Bd4 Ra5 Bb6 Rc5 Ngh3 g1N Ng2 Nf3 Rg1 Nh4 Nh1 Rc3 Kd4 Bf7 Ke4 N7c5+ Kd4 Nb3+ Ke4 Be8 Kd5 Ne5 Kd6 Beb5 Kd5 Rc5+ Kd6 Rd5+ Kc7 Rc5+ Kb8 Nd3+ Ka8 Nd2 Rc1 Bb3 Rc2 Be6 Ne3 Be8 Bg2 Rc3 Rb1 Beb5 Ng1 Rc5 Bf1 Nb3 Ng2
4Rkb1/3n4/nN2nN2/NPrr2p1/KNq5/B6n/PPQBPb2/qn2R3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 a5 c4 e5 cxb5 exf4 Qa4 Ba6 Bg2 Bc8 Bc6 dxc6 Qxa5 c5 Qa7 c4 Kd1 g5 Kc2 c5 d4 f5 h4 f3 h6 c3 Kb3 f2 h7 f1N d5 f4 d6 c4+ Ka3 f3 h5 f2 h6 c2 Nh3 c3 Nd2 Nf6 Nf4 Be6 Nh5 Nfd7 Nb3 Nd2 Ka4 f1Q Na5 Qc7 Qc5 Nb1 Bd2 c1N Nf6+ Kf7 Rh4 c2 Re4 Nd3 Re3 c1N Qc2 Rg8 h8B Nf4 h7 Nh3 Bg7 Nd3 Re5 Be7 Bf8 Ndf4 Re4 Bd8 Be7 Na6 h8N+ Kg7 Ng6 Rc8 Ne5 Bf7 Nec4 Ne6 Nb6 Qc4+ Bb4 Rc5 Re3 Nd2 Re1 Nb1 Re4 Rh8 Re5 Bg8 Re3 Ndb8 d7 Rh4 Bd6 Rd4 Bf4 Be7 d8N Nd7 Ndc6 Kf8 Re4 Bd6 Bd2 Bg3 Re5 Rd5 Re3 Qc3 Ba3 Bf2 Nb4 Qc4 Re4 Nd4 Re7 Ne6 Ne4 Qh1 Nf6 Qg1 Rc1 Qh1 Bf4 Nd2 Rb1 Qg2 Rh1 Qf1 Rg1 Qa1 Re1 Nb1 Be3 Rd3 Bd2 Rdd5 Re8+
1Bnk1N1K/1bR2N2/2p2rr1/4P3/P3qP1N/rRr2P1N/6bq/Q3rBn1 b - - 0 1 legal: proof: c4 a5 b4 axb4 d4 d5 e3 g5 cxd5 f5 h4 e5 Nd2 Bd6 Nb1 f4 exf4 gxh4 Nc3 e4 Nb1 Be5 dxe5 Ra3 Bc4 Ra4 Bf1 Ra8 Ke2 h5 Ke3 b5 Kd4 h3 g4 b3 g5 h4 a3 e3 f3 b4 d6 e2 g6 e1R g7 b2 Qb3 h2 Qd3 b3 Nd2 b1Q Nh3 b2 Ne4 Ne7 g8N Bb7 Nh6 Nc8 Neg5 Nc6+ Kd5 Rf8 Nf5 Rf6 Qd4 Qe7 d7+ Kd8 Qd1 Qh7 Be3 Qc2 Bc5 b1R Ba7 Rb3 Rb1 Rc3 Rb3 Qb1 Rg1 h1B Bb8 Bg2 a4 Ra6 Qc1 Qh6 Nh7 Qc2 N3g5 h3 Nf8 h2 Qa1 h1R Nh4 Qch7 Nh3 Rg6 Rb6 Nd4+ Rc6 Ne2 Ke4 Re3+ Kf5 Ra3 Rb6 Rh2 Rb3 Rac6 Rh1 Rc3 Rg1 c6 Rh1 Ke7 d8N Ng1 Nf7 Q6g7 Qc1 Qgh8 Qb2 Rf6+ Kg5 Qe4 Qa1 Rf5+ Kg6 Qh5+ Kg7 Rf6 Nh6 Ke8 Kh8 Kd8 Ng5 Rh3 Rh2 Rg3 Nh3 Bh1 Rg2 Rgg6 Rg5 Bg2 Rf5 Rd6 Rf7 Rdf6 Re7 Qg4 Rg7 Qg3 Rc7 Qh2 Nf7+
4QkN1/R1rR1N2/8/K1P1rB2/nPB5/prbn4/PRP3br/qq2R2b b - - 0 1 legal: proof: e4 b5 h4 f5 exf5 g5 d4 gxh4 Qd2 c5 dxc5 b4 Qxb4 Qb6 Qa5 Qd8 Bf4 Nc6 Bb8 Nxb8 Kd2 h5 Kc3 d5 Kb4 e5 g4 d4 f4 e4 f6 h3 b3 h2 g5 e3 f5 e2 g6 e1R g7 d3 Be2 d2 Ba6 d1R Be2 h4 Nh3 Nh6 g8B Qd4+ Bec4 Bg7 f7+ Kf8 Rf1 h1Q Ng5 h3 Nd2 h2 Rb1 Bb7 Qa6 Re5 Qe6 Ng4 Rb2 Rb1 Bh7 Bg2 Nde4 Nf2 Re1 Nd3+ Ka5 Nd7 b4 Nb6 Nf6 Rc8 Ng8 Rc7 Bg6 Bf6 Bh7 Na4 Bg6 Kg7 f8R Qf1 Rb8 h1B Ra8 Rh2 Nf7 a6 Ra7 Kf8 Rb3 Qa1 Rb2 Re3 Bh7 Bc3 f6 Re2 Bf5 Re5 Re3 Re1 Re4 Re3 Rd4 Rf3 Rd7 Qfb1 Rd6 Bd2 Be4 Nc3 Nh8 Ne1 f7 Kg7 Kb6 a5 f8R a4 Ka5 a3 Rf6 Rg3 Nf7 Na4 Rf1 Rb3 Rd7 Kf8 Bf5 Nd3 Re1 Bc3 Qe8+
N6b/BBBnrqR1/n2q1P1k/3P3n/6p1/n1P1N3/1b1r1Pb1/R3KQB1 b - - 0 1 legal: proof: e4 d5 b4 h5 a4 c5 g4 f5 gxh5 d4 exf5 d3 c3 cxb4 Qc2 b5 axb5 dxc2 d4 Kf7 h4 g5 Ke2 Kg7 b6 e5 d5 a5 b7 e4 Be3 c1Q Nh3 b3 Rh2 a4 Nd2 a3 Rg2 b2 Ra2 b1N Nf4 Rh7 Nc4 Nf6 Nb6 Bd7 Bc5 e3 Rg1 Bd6 Ng2 Be5 Bd6 Ra4 Na8 Rd4 Bc7 Qg8 Rc2 a2 h6+ Kf7 h5 a1B Rd2 Na3 Ra2 Bb2 Ra1 Rg7 h7 Rd1 h6 Nh5 Kf3 e2 h8B e1N+ Ke2 Qf4 h7 Nd3 Ne3 Nc5 Bh3 Nba6 b8Q Bc1 Qb5 Rd2+ Ke1 Bb2 Qf1 Bd4 Rg4 Qd6 Rg2 Kf8 Rg3 Rf7 Be5 Re7 h8B Qf7 Rg1 Kg8 Bh2 Kh7 Rg2 Kh6 Bg1 Ba4 Bf6 Bc2 Bg4 Be4 Be2 Nb4 Ba6 Nd7 Bb7 Na6 Rg3 Bg2 Be5 Qb6 Bb8 Qbf6 Bec7 Qd6 Ba7 Bh8 f6 Qg8 Rf3 Qf7 Rf5 g4 Rg5 Qg3 Rg8 Qd6 Rg7
b2QKn2/b3P3/2Rqq3/P3pq1P/2B2b2/nRNB4/1BN1rkP1/rB5b b - - 0 1 illegal: No proof kernel
q1Nrk3/NPRBr1Q1/NP1n4/1N5r/q2p4/2q1bP2/b1B3P1/b2b1K1R b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 f5 exf5 cxd4 Ke2 g4 Kd2 Ba6 Ke1 Bc8 h4 g3 f3 Nc6 Be3 Ne5 Bf2 Nf7 Kd2 Ng5 hxg5 gxf2 Ke2 d5 c4 a5 b4 e5 g6 h5 g7 e4 c5 d3+ Ke3 a4 f6 d2 Ke2 h4 c6 a3 b6 h3 c7 a2 b5 e3 b7 h2 b6 Ne7 g8B Bh6 Bh7 Be6 c8N Nf5 Nc3 Nd6 Bc2 Rh7 Nb5 Re7 Rc1 a1B Nba7 d4 Qe1 Ba2 f7+ Kd7 f8N+ Ke8 Ne6 d1B+ Kd3 e2 Nc5 Qd7 Na6 Qa4 Qa5 e1Q Qe5 Rb8 Ne2 Be3 Nc3 Ra8 Be2 f1Q Ncb5 Qea5 Qg7 Qfe1 Bb3 Qeb4 Rc7 Qc5 Bc2 Qc6 Rg1 h1R Bf1 Rh5 Rh1 Qd7 Nc3 Qc5 Ncb5 Qd8 Be2 Bf2 Kd2 Be3+ Ke1 Qc3+ Kf1 Rb8 Bc4 Ra8 Be6 Rb8 Nc6 Ra8 N8a7 Qb8 Nc8 Qa7 Bg4 Rb8 Be6 Qa8 N6a7 Rd7 Ne7 Rbd8 Nec8 Re7 Bd7+
Qq1r3N/b2b4/rP6/1bP1P2q/3K1RR1/B3p2q/b1P1Nq2/2N1knBN b - - 0 1 legal: proof: b4 b5 e4 c5 a4 e5 d4 h5 g4 f5 gxh5 Na6 Bg2 Nc7 bxc5 exd4 e5 b4 Be4 Nb5 axb5 fxe4 Ke2 Ke7 f4 Ke6 h4 Kf5 b6 Kg4 f5 Kg3 f6 g5 h6 a5 h7 d5 f7 b3 h5 d3+ Ke3 a4 h6 g4 Qd2 b2 Rh4 a3 Rh5 a2 Rg5 Nf6 Qa5 d2 Na3 d1Q Qa7 Bd7 Bd2 Qb8 Qa6 Bd6 f8B Nh5 Qc4 Ra6 Rc1 a1Q Nb1 Qa3+ Nc3 b1B Nh3 Ba2 Qa4 Bc7 Be7 Rd8 h8N Kg2 h7 Kf1 Qc6 g3 Nf2 g2 Ng6 g1Q h8N Ng3 Nf4 Bd6 Be1 Qh5 Ne2 Qgh2 Rg4 d4+ Kd2 d3 Ke3 d2 Bg5 d1B Kd4 Bc7 Nh1 Qf2+ Be3 Qb3 Qa8 Bd6 Nf4 Be2 Nd3 Qe6 Rf4 Qeh3 Rd1 Bc7 Nc1 Beb5 N3e2 Bd6 Rd3 Bc7 Ba5 Bd6 Rc3 Ke1 Bb4 Nf1 Rg4 Qf8 Bg1 e3 Ba3 Qf2 Nf4 Qa7 Rd3 Bb8 Nfe2 Qb7 Rc3 Ba7 Rc4 Qc7 Kc3 Qb7 Rcf4 Qb8 Kd4
3nBr2/n1r1Rp2/PB2q2N/2B1P1bR/q1P3b1/4r1P1/k1Q1pKb1/N6B b - - 0 1 legal: proof: d4 a5 h4 d5 f4 c5 b4 g5 hxg5 axb4 e3 e5 e4 Qd6 exd5 cxd4 Ba3 e4 Bc1 Qe5 fxe5 Bh6 Qf3 Bg7 Qd1 Bf8 c4 Kd7 a4 h5 a5 b5 g3 b3 g6 b4 d6 Kc6 d7 Kc5 d8B h4 a6 e3 g7 h3 Bd2 b2 Bh4 b3 Bf6 e2 Bc1 Kb4 Nd2 b1Q Bb2 d3 Ra2 h2 Kf2 Bg4 Ra3 Be7 Nh3 Nc6 Bc1 b2 Qc2 Ra7 Nb3 d2 Na1 d1Q Be3 Rc7 Bg2 Nd8 Rb3+ Ka4 Bh4 Bg5 Rb7+ Ka3 Bc6 Ka2 Bc5 Ne7 g8B Nc8 Bh7 Na7 Be8 Rf8 Be4 Qd5 Bg2 Qbd1 Bf3 Qe6 Bb6 Bh6 Be7 Bg5 Bec5 Qdd7 Bd5 Qa4 Be4 Rc8 Re7 Rc7 Re1 h1B Bf3 Bg2 Rh1 Rc8 Bfc6 Rc7 Rh2 Bf1 Bh1 Bg2 Nf4 Bc6 Rh5 Bb7 Ng6 Bg2 Qd1 b1R Nh4 Rc1 Nf5 Rc3 Nh6 Re3 Qc2+
1N3n1R/1bP5/2rP2Nk/Nr1Bpb1B/1q1P4/NRQ2r1P/pq6/1rbK4 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 e4 e5 exd5 h5 g4 hxg4 f5 Nc6 Ba3 Qd7 axb5 Nd8 b6 Qd6 b5 Ne6 fxe6 Qd8 Bb4 cxb4 c4 f5 d4 a5 h3 g5 b7 a4 b8N f4 e7 Kf7 e8B+ Kg7 c5 a3 b6 f3 d6 f2+ Ke2 a2 c6 g3 c7 g2 b7 b3 Bc6 b2 Be8 g4 Nd2 b1B Bb5 g3 Ba6 Nf6 Qb3 Bbf5 Nd7 Kh6 b8N Nh7 Nc5 Bb7 Bc4 Ra6 Qc3 Rc6 Ngf3 g1R Bd5 g2 Kd1 Bg7 Nc4 Nf8 Nh4 Bf6 Qg3 Bg5 Nb3 Bc1 Ng6 Qh4 Nba5 Qf4 Qf3 Qh2 Na3 Rg8 Ne7 Rg3 Qd3 Rf3 Qc4 Rb3 Qc3 Rb5 Rb1 Bfc8 Qe1 Bf5 Be2 f1R Bh5 Rf3 Ng6 Rgf1 Rb2 g1Q Rb3 Qb2 Rh2 Qe3 Rg2 Qec3 Rg1 Qb4 Rg4 Qb1 Rg5 R1f2 Qc3 Rb2 Nf4 Qa1 Rg8 Rb1 Ng6 Qb2 Rh8+
7q/1RB1b3/RPb2k2/5N2/P1bK1b1q/nRpP2Pp/2rR1Q2/q4BbN b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 h4 d5 cxd5 g5 Ke2 gxh4 Ke1 b4 b3 a5 Bd3 Ra6 Be2 Rb6 Bf1 Rb5 Ke2 Nd7 Ke1 Nb6 axb5 a4 Nh3 a3 Ng1 Na4 bxa4 Bd7 Bd3 Bh3 Bf1 Bc8 Ke2 Kf7 Ke3 c5 f4 h5 f5 e5 d3 c4 d6 c3 f6 h3 b6 a2 g3 b3 d7 b2 Qe2 h4 Qf2 h2 Qe1 Be7 Bd2 Ba6 Nf3 Nh6 Qf2 Bc4 Qe2 Nf5+ Kf2 e3+ Ke1 e4 Nd4 Nd6 Qg2 e2 Kf2 e1B+ Ke3 Nb5 Nf5 Na3 Kd4 e3 Qf2 e2 Bf4 Bd2 Bc7 Bf4 Nd2 e1B Rd1 b1Q Ne4 a1Q Rd2 Qb4 Rg1 Kg6 f7 h1B f8R h3 Rf7 Rf8 Rh7 Rf6 Rf7 Qh8 d8R Bg2 Ra8 Bh1 Nc5 Bc6 Ra6 Re6+ Rg7+ Kf6 Rg2 Re2 Ne4+ Ke6 Rb2 Rc2 Rb3 Bed2 Qg1 Bc1 Nf2 Kf6 Nh1 Bcd2 Qf2 Be1 Qf3 Bf2+ Qe3 Bg1 Rd2 Qb5 Qf2 Qa5 Nh4 Qah5 Nf5 Q5h6 Rg8 Qh5 Rb8 Qh4 Rb7
r4R2/1PNnN3/B2RP3/P3N1bP/n3b1rq/pK4p1/Q3p2q/N3kBn1 b - - 0 1 illegal: No proof kernel
5K2/3NR1r1/R2p4/1qPrQb2/1Rk1P1PN/3r1b1p/p2qnP2/B2B1Rr1 b - - 0 1 legal: proof: h4 c5 e4 g5 b4 gxh4 bxc5 b5 e5 b4 a3 b3 e6 Bg7 Ke2 fxe6 Ke1 e5 Rh3 e4 Rh2 Bd4 Rh1 Bg7 Nc3 e5 Rb1 e3 Ra1 e4 Nb1 Na6 Ke2 Bc3 Ke1 Bb4 axb4 e2 d3 Nc7 Kd2 e3+ Kc3 Ne6 Rh3 Ng5 Rh1 Ne4+ dxe4 Qb6 Nd2 Qa5 Nb1 Qd8 Kc4 Ke7 Kd5 e1R g4 h5 c4 a5 b5 e2 c6 h3 c7 b2 b6 h4 b7 a4 b8R h2 Na3 b1Q Bd2 h3 Kc5 Rh5+ Bg5+ Nf6 Qb3 Rd1 Nf3 e1R Nh4 Rd3 Rb4 Ra7 Be2 Rg1 Qc3 Ke6 Ra2 Nd5 Bd1 Nf4 Qh8 Ne2 Qe5+ Kf7 Ra1 d6+ Kc6 Bf5 c8R Qa5 c5 Qc2 Re8 Qd2 Nc4 a3 Bf6 a2 Rab1 Rg5 Nb6 Re7 Nd7 Qb5+ Kc7 Rg7 Kd8 Re6 Qf4 Re5 R1b3 Red5 Ba1 Nc1 Ra3 Ne2 Rf8+ Ke6 Ke8 Rgg3 Rg1 h1B Rf7 Bf3 Rf1 Rg1 Kf8 Rg5 Rh7 Rg7 Ne5 Kf6 Ra6 Ke6 Nc4 Kd7 Nb6+ Kc6 Qe5 Qc4 Rba4 Kb5 Nd7 Qcb4 Qe7 Kc4 Qe5 Rg6 Re7 Rg7 R4a5 Qb6 Rb5 Qc6 Rb3 Qb5 Rb4+
1R4kr/1p1P3R/Q1n2PB1/npnr1p2/1Pb1q1qP/N7/nK1BB1NB/8 b - - 0 1 legal: proof: f4 f5 g4 h5 c4 hxg4 e4 d5 cxd5 e5 fxe5 a6 e6 Rh5 e5 Rh8 Qe2 Be7 Qd3 Bf6 Qb5+ axb5 exf6 Qe7 Bd3 Qd6 Bf1 Qd8 Kd1 Kf8 Kc2 c5 d4 g5 b4 g3 a4 g2 a5 c4 d6 c3 d7 g4 a6 g3 d5 Qe7 d8B Nd7 d6 Nc5 Nf3 g1N a7 g2 Nh4 Ne2 Na3 g1Q Bd2 Nc1 Bc7 Na2 Be2 Qg4 Ng2 Bd7 h3 Rd8 a8Q Be8 Rag1 Bf7 Qa6 Qe8 Kb1 c2+ Kb2 Ne7 Rc1 Nc6 e7+ Kg8 d7 Bc4 Bh2 Rc8 Rce1 c1N Reg1 N1b3 Ra1 Qeh5 e8B Qhh4 Rac1 Rc7 Rc3 Nba5 Re3 Ncb3 Re7 Nc5 Rh7 Qe4 Rc1 Qhg4 h4 Nb8 Rc3 Rc6 Rg3 Rd6 Rc3 Rd5 Re3 Qef3 Re6 Qge4 Rc6 Qg3 Rc8 Nbc6 Rb8 Qgg4 Bg6+
1RnrBB2/4qPB1/1b1B3K/1q1R1rP1/rb6/1bn2P2/rk3PQ1/2NNrn2 b - - 0 1 illegal: Other
nkb2qNr/3n1P2/3N2P1/1BN1b1r1/QBP3qn/1q3r2/1RR1qP2/1q4NK b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 g4 h5 c4 a5 b4 d5 f6 Kd7 g5 Kc7 f7 e5 g6 a4 Qe2 h3 Rh2 a3 Qg4 h4 Qg5 a2 Qf5 e4 Nd2 d3 Ngf3 d4 Qd5 e3 Qe4 e2 Qe6 Bd6 Bg2 Ra5 Qe4 Be5 Rb1 a1Q Qd5 Nf6 Ne4 Ne8 Bd2 Nd7 b6+ Kb8 b7 Qb2 b5 Qb3 Nd6 Nc7 Rb2 Na8 Ng1 Qf8 Rh1 h2 Qc6 h3 Bb4 Ra3 Qa6 Rh5 Bc6 Rg5 Kd2 e1N Qa4 Ng2 Rc2 Nf4 Ke1 d2+ Kf1 d3 Rb2 Ng2 Rc2 Kc7 b8N Nh4 Rb2 Nf6 Nd7 d1Q+ Be1 d2 Nc5 Qb1 b6+ Kb8 b7 d1Q Bb5 Qg4 Rc2 Q1a2 Bb4 Nd7 Rb2 Qc3 Rc2 Qd2 Rb2 Rf3 Rc2 Qb3 Rb2 Kc7 b8N Qde3 Nc6 Qee4 Ne7 Kb8 Ne2 Qec2 Rg1 h1Q Ng8 Qd2 Rc2 h2 Rb2 Rff5 Rc2 Qhe4 Rg3 h1R+ Ng1 Rf6 Rgc3 Rf3 Rb2 Qb1+ Rc1 Ng2 Nd3 Rh8 Nc5 Qbf5 Rcc2 Qfe4 Nh3 Qde2+ Kg1 Nh4+ Kh1 Qef5 Ng1 Qfd3 Rc3 Qb1 Rcc2
4brN1/PqnB2NR/1P3P2/n1Kn2b1/3BBq1Q/1q2rbq1/3BPk2/q6R b - - 0 1 illegal: No proof kernel
R1Q5/KRn2b2/1N1b1Bq1/6Bb/NrPb3P/qBqrP3/BP1nk1r1/4n3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Ke4 c3 a5 e6 g5 b6 d5+ Kb5 f5 b7 d3 e7 f4 e8B d4 c4 d2 Bg6+ Ke3 Bg2 f3 Bh3 a4 Nc3 d3 Nb1 a3 Be4 f2 Qe1 f1Q Nc3 a2 Nf3 g3 Rg1 g2 Bd5 g4 Rb1 a1N Nh2 g3 Bf3 Nc2 Be4 Qd4 Qd1 Ra4 Rh1 g1B Bhg2 Rb4+ Ka5 Be6 Nf3 Bd6 Ne5 Na6 Bgf3 g2 Ra1 Nf6 Nd7 Rg8 Nb6 Bf7 Bh7 Ne4 b8B Bc5 Bg4 Qf3 Be5 Bd6 Bf6 Nc7 Qf1 Qg3 Qf5 Bf2 Qc8 g1Q Bd7 Qh3 Ba4 Qg7 Bg6 Qh7 Bf5 Rg2 Ra2 Qg6 Ra1 Bg1 Ra2 Kf2 Ra1 d1B Bcg5 d2 Ra2 Na8 Ka6 Nc7+ Kb7 Bgh2 Kb8 Bhe5 Kb7 Qhd3 e3 Bh5 Rha1 Ne1 Bd1 Kf1 Ra8 Kf2 Bc2 d1R R1a7 Kf3 Na4 Qa3 Bb3 Qc3 Kb8 Ke2 Rb7 Rd5 Ka7 Nd2 Bb1 Rd3 B1a2 Bd4 Bf4 Qc1 Bh6 Qc3 Bhg5
2q1Bn2/2Rn1K1N/B5nP/2B1rN2/R1Q1nbk1/2rq1rbP/2P2P2/4q1Bb b - - 0 1 illegal: No possible last move, all moves rejected
2q2B1Q/3b3K/2PRN1rB/N1r1R1bB/1bnqB1nP/3qbP2/kn1P4/1r6 b - - 0 1 illegal: No proof kernel
8/bNKRkb1n/PBn3B1/2P3nb/1b1rBRrb/P2BN1Q1/2qbP2q/8 b - - 0 1 illegal: No proof kernel
3n1b2/rPQn1BNK/4B1NB/1kRP2rb/7n/P3B1r1/r5PR/n1b2q1r b - - 0 1 illegal: No proof kernel
2n1N1bq/2R1q2n/NB2n2P/br1P1N1k/1PqQ1b2/3B3n/RK5P/1Nrb4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 dxc4 a4 e5 axb5 exf4 e4 a5 d4 f5 Kd2 Kf7 Kc3 c5 h6 Kg6 b6 a4 e5 a3 b7 a2 d5 f3 e6 f2 b3 f4 e7 f3 e8N Nc6 b8N Be6 Kb2 c3+ Kc2 c4 Be3 Bb4 Bc5 Ba5 b4 Na7 Qc1 Nf6 Qe1 Nh7 Nc7 Nc8 Kc1 c2 Bd6 Qe7 Nh3 Kh5 Ne8 g5 Qc3 g4 Nc7 g3 Qe3 g2 Nd2 g1N Nba6 Bg8 Ne4 Rb8 Be2 f1B Nac5 Rb5 Kb2 c1B+ Kc2 c3 Nhf2 Nh3 Qd4 Bf4 Bc4 Be2 Ng4 f2 Rhc1 f1Q N5a6 Bf3 Kb3 c2 Ne8 Bd1 Kb2 Qe2 Bc7 Qf1 Rcb1 c1N Nc3 Nb3 Bd3 Nc5 Ne3 Ne6 Rc1 Qe2+ Rc2 Qg4 Bb6 Qe2 Rc1 a1Q+ Kb3 Qg4 Nb1 Qc3+ Ka2 Qc4+ Ka1 Qgg7 Ra2 Qc2 Bd8 Nb6 Na3 Bf7 Nd6 Qc5 Bc7 Rc8 Ne8 Bg8 Nf5 Qh8 Nb1 Qc2 Bd8 Rc6 Bc7 Nc8 Bb6 Qb3 Rcc2 Rcc5 Rg2 Rc1 Rgc2 Kg5 Rc7 Qc4 Kb2 Kg4 Ka3 Kh5 Kb2
3N3R/1BK1P1b1/B1b1PkB1/2RqN3/1n1q4/5P1n/rP1r1nb1/bQB2qn1 b - - 0 1 illegal: No proof kernel
N4nr1/3b1q2/2QBRpr1/2NbR2r/2P1n3/KnPnnb2/P2N1P2/N4B1k b - - 0 1 legal: proof: b4 a5 d3 axb4 Bf4 c5 Bc1 c4 dxc4 g5 h4 gxh4 e3 d5 Bd2 d4 Bc1 d3 Na3 Bg7 Nb1 Bd4 exd4 Bf5 Be2 Be6 Bf1 Bc8 Kd2 Kd7 g4 Kd6 g5 b5 c3 e5 g6 h5 d5 e4 g7 Ke5 d6 Kf4 d7 h3 Qe1 h4 Bg2 b3 Qd1 e3+ Ke1 b2 Na3 b1N Qa4 h2 Kd1 b4 Bc6 d2 Kc2 d1N Kb3 h3 Qb5 Rh5 Bd2 Qc7 d8N Nd7 Qd5 Nf8 Qg2 Bd7 Qd5 Nf6 g8N Ne4 Be1 f6 Qc5 e2 Ne7 Ne3 Bd2 e1N Nf3 Nd3 Re1 h1B Nc8 h2 Nb6 Bg2 Qd5 h1B Nc2 Rc8 Ka4 b3 Na8 b2 Nb7 Rb8 Bc1 Nbd2 Nc5 b1R Ka3 Nb3 Nd2 Bf3 Bb7 Kg4 Qc6 Kh3 Re2 Kg2 Bb2 Rf1 Rae1 Rg1 Na1 Kh2 Bc1 Rg6 Bc8 Be8 Bh3 Qf7 Bf1 Bd7 Bb2 Ng3 Bc1 Bd5 Bb2 Bhf3 Bc1 Kh1 Bb2 Nef5 Re6 Rc8 R1e5 Ne4 Ka4 Ne3 Ba3 Nh7 Bb4 Rcg8 Ka3 Nf8 Nb7 Qe8 Bd6 Qf7 Nc5
BR1K1N1r/1rNP4/B2bP1kp/1rN3n1/2P4P/1n2R3/3nQ1b1/b2r1qrN b - - 0 1 illegal: No possible last move, all moves rejected
4B1bR/p3b3/K1PQ1P2/P3PN1B/1qN2r2/1b1RbN2/rn1nNrkb/5n2 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Bf4 h4 Bg3 hxg3 Kd2 Kf7 Kc3 Ke6 Kb4 Kf5 Kb5 Ke4 f4 d5 a4 g5 c4 d4 h4 d3 f5 g2 h5 d2 c6 g3 e3 g4 e6 Nd7 c5 Nb6 e7 Nh6 e8B Nc4 a5 Qd4 c7 Be7 c6 Nb2 Nf3 g1B Ne5 g2 Bd7 g3 Nd3 Bh2 Nf4 g1R Be2 g2 Qa4 d1B Be8 Ng4 h6 Bb3 h7 Bce6 c8N Bg8 Nb6 Rf1 Qb4 g1B Nc4 Rf2 Qd2 b6 Ka6 b5 Ra3 b4 Bd1 Rd8 Ne2 Kf3 e4 Ne3 e5 Kg2 f6 Nf1 Qd3 Qe4 Nbd2 Rd4 Nf3 Qh4 Nc1 Rf4 Qd6 Ba4 Ne3+ Kh3 Qd4 Nd3 Qa1 Ra2 Bg6 Qe1 Qd4 b3 Qc3 b2 Qc5 b1N Nh4 Qb4 Nef5 Be3 Qd6 Nb2 Be8 Rf2 Rd3 Bab3 Bf3 Bge6 Ne2 Rg8 h8N Bed5 Qd7 Rg4 Nf7 Nbd2 N7d6 Rf4 Nc4 Be6 Qd6 Bg8 Rg1 Bg3 Rg2 Bh2 Bfh5 Be6 Nf3 Bd5 Rg7 Bg8 Rh7 Kg2 Rh8
R1k2r1q/rb6/qn3b2/PrN2K1B/1N3p2/Pr3PN1/Q1P1R2b/Nn3B1r b - - 0 1 illegal: No possible last move
b2b4/2N1rk2/1qRBp2P/n2N3q/1r1rBP2/3PR2P/1RR1bbK1/bQ1n4 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 d5 cxd5 f5 gxh5 fxe4 a4 g5 f4 c5 Kf2 b5 h6 b3 a5 e6 d6 b4 a6 e3+ Kg2 g4 h3 e2 d7+ Kf7 a7 e1B Nf3 c4 Nc3 b2 Rb1 b3 Nd5 g3 Be2 c3 Nb4 c2 Na2 Bg7 Ra1 b1B Nh4 b2 Rh2 Bf2 Ng6 Ne7 Bg4 Ba6 Qe2 Rh7 Qf3 Nbc6 Qd5 Be2 Qb3 Nd5 Bf5 Na5 Nb4 Nc3 Na6 Nd1 Ra3 Qb6 Nc7 Rd8 a8R Ba2 Be4 b1R Ra7 Ba1 Ra6 Rb2 Qd3 Rb4 Ne7 Bd5 Qb5 Rg7 Re3 Ba8 Ba3 c1Q d3 Qcc5 Ned5 Rh7 Ne7 Qh5 Ned5 Rd4 Qb1 Rb8 d8R Rb7 Nb5 Re7 Rd6 Rh8 Rc6 Rb8 Bd6 Rbb7 Rh1 Rb8 Rf1 Rbb7 Nbc7 Rb8 Kh1 g2+ Kh2 g1B+ Kg2 Bh4 Rc2 Bgf2 Re1 Rd7 Rh1 Bd8 Rh2 Re7 Rb2 Qa7 Rc6 Rbb4 Rh1 Qb6 Rg1 Nc3 Rc1 Nd1 R1c2
R5rr/5b2/2NPk3/bn1q1q2/P2r1P2/NR1b1BPb/3npbRQ/1RK3B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 gxh4 d4 Kf7 Kd2 c5 f4 e5 a4 b5 g3 h5 d6 b3 f6 b4 d5 h3 d7 h4 Bg2 b2 Na3 b1B Bf3 b3 Be4 h2 Nc2 h3 Qf3 b2 Qe2 c4 Na3 c3+ Kd1 c2+ Kd2 Nc6 Bf3 e4 Qb5 e3+ Ke1 e2 Kd2 Na7 Nc4 Bc5 Bg4 Bf2 Qa6 Nb5 Qc6 Ba2 d6 b1B Bf3 Qf8 d8R Ke6 f7 Nf6 Bb2 Ne4+ Kc1 Nd2 Na3 Bc4 Bf6 Bba2 Rb1 Bd3 Bd4 Bd7 Kb2 Bac4 Rb8 c1B+ Ka1 Qc8 f8R Ba2 Qb6 Qc5 Qd8 Qf5 Qh4 Rg8 Rb6 Rc8 Be3 Rc4 Ra8 Rd4 Qh5 Bac4 Rb3 Bb2+ Ka2 Bc3 Rb7 Bb4 Kb2 Ba5 Kc1 Nc7 R7b4 Nb5 Rb1 Bc8 R4b3 Bd7 Be4 Bc8 Nf3 Bd7 Re1 h1Q Rg1 h2 Ne5 Qf3 Qh8 h1R Qh2 Bc8 Bb7 Qd5 Nc6 Bd7 Qg2 Rhh8 Qh2 Be8 Rg2 Bh5 Qh1 Bg4 Qg1 Bh3 Qh2 Be1 Bg1 Bf2 Rb4 Ba2 R4b3 Qc5+ Rc3 Kf6 Na7 Bf7 Bf3 Qcd5 Rcb3 Ke6 Nc6
n2rrbB1/K2N3r/1PqP4/B3Bp2/5N2/q2qR1Q1/P1nP1rb1/1rk2B1R b - - 0 1 illegal: No proof kernel
2b2qQ1/2p1R1r1/PrPn1B2/2k2r2/rn4PN/N1brRP1B/7B/2K2bBq b - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h3 f5 gxf5 g4 hxg4 d5 Be2 dxe4 Bc4 Qd4 Bf1 Qd8 a4 Kd7 d4 Kd6 Kd2 b5 c4 e5 d5 h5 a5 h4 f3 e3+ Kc2 e2 f6 e1R f7 h3 Rh2 e4 Rd2 h2 Rd4 h1Q Ra4 b3+ Kd2 b2 Qc2 b4 Qd3 b3 Ra3 Bg7 f8B+ Ne7 Qe3 Rh5 Nh3 Kc5 d6 Rf5 d7 Nc6 Qg5 Nb4 Nf4 Re3 Ng6 Ra6 Kd1 Rd3+ Bd2 e3 Nh4 Bf6 Re4 Bc3 Qg8 Ra7 Bh6 Qf8 d8B Ra8 Bf4 e2+ Ke1 Ra6 Bh2 Rg6 a6 Rg7 Kf2 e1R Bh3 Rd1 Ke2 Rd4 Bdf4 R1d3 Re3 Re4 Bg1 Red4 Bfh2 Re4 Nd2 b1B Kd1 b2 Ra1 Ba2 Rc1 Ref4 Rc2 b1R+ Rc1 Nec6 Bf6 Nd4 Re7 Rb2 Ra1 Bb3+ Kc1 Ba4 Re3 Nb5 Nb1 Nd6 Na3 Bd1 Rb1 Be2 Ra1 Rb3 Ra2 Bf1 Rae2 Rfd4 Re7 Nc6 R2e3 Rb6 Qf7 Nb4 Qg6 Kc6 c5 Kd5 c6 Kc5 Nc4 Nd5 Na3 Ra4 Qh7 Nb4 Qg8
BK2Rr2/3Nn3/1R1B2b1/2q2nP1/rbpkNq2/1P1Pq2N/N2Q2rP/1b3r2 b - - 0 1 illegal: No proof kernel
1NbQB2q/1r2r2q/b2P4/Kp4B1/3b2b1/NR3Pkn/PP1NN1n1/3R2rq b - - 0 1 legal: proof: e4 a5 c4 d5 cxd5 g5 h4 gxh4 Qe2 f5 Qa6 fxe4 Qxa5 Bd7 Qa7 Bc8 d4 Kd7 Kd2 Kd6 Kc3 c5 g4 e5 g5 b5 g6 h5 g7 h3 Qa4 h2 Nf3 h4 Qc4 h3 Nbd2 e3 Qb3 e2 Rb1 e1R Bc4 e4 Bf1 c4 Kb4 c3 Qa3 e3 Ra1 e2 Nh4 c2 Ng2 Rh7 Qc3 Nc6+ Kb3 Nce7 Kb4 Rb8 Qb3 Nf6 g8N Ng6 Qf3 Rbb7 Nf4 Nh5 Qg2 Nh4 Qg5 Rhe7 Nb1 Bg7 Na3 Ng2 Nf6 Qh8 Ka5 Rd1 Bd2 e1Q Bc4 c1Q Ne2 Qc2 Rg1 h1B Ne4+ Kd7 d6 h2 d5 Nhf4 Qf6 Nh3 Bd3 Qf1 Bg5 Rc1 Qf8 Bd4 Nd2 Re1 Bc4 Qch7 Rc1 Rd1 Rc3 Ra1 Rb3 Qfb1 Rc1 Qbe4 Rcc3 Rg1 Rd3 Ne3 Nf1 Rb8 Rd1 Bf3 Nd2 Bg4 Bd3 Qg2 Bg6 h1B Bf7 Qh2 Bh5 Be4 f3 Ng2 Qg8 Ba6 Qf8 Rb7 Qb8 Bg6 Qc7+ Ke8 d7+ Kf7 d6 Ke6 d8N+ Kf5 Nf4 Qh1 Nc6 Bf7 Qb6 Be6 Ne2 Bc8 Nb8 Ke5 Qd8 Kf5 Be8 Ke5 Bf6+ Kf5 Nc3 Kf4 Bg5+ Kg3 Ne2+
1bq1RN2/1Qn4p/b2P2Bb/1P1kN3/1r5P/1nR2PK1/1rBrbB2/1q1B2n1 b - - 0 1 legal: proof: e4 a5 b4 d5 g4 dxe4 g5 b5 g6 Qd5 bxa5 b4 c4 Qb5 cxb5 fxg6 Nf3 g5 Ng1 g4 a4 Kd7 h4 Ke6 d4 g5 a6 c5 a7 e3 a5 g3 a6 c4 f3 g2 Na3 b3 Bb2 g4 Nc2 c3 Nh3 g1N Ba3 b2 Rc1 b1B Bc5 e2 Kf2 e1Q+ Kg2 g3 Qd3 Nf6 Qg6 Bh6 Bd3 Nd7 Qe8 Nd5 Bg6 Nc7 Ne3 c2 Bb6 Nc5 Nf1 Nb3 Nh2 Kd5 Ng4 e5 Qe7 e4 Ne5 e3 Ng5 e2 Ne6 Rd8 Nf8 Qc3 Re1 c1Q Bc2 Rd7 Bd1 Bd3 Bc5 Bb7 Qg7 Re8 a8B Qb1 a7 Re6 Bb6 Qc6 Qe7 Ba6 Bb7 Rg6 a8B Rg4 Bc8 Rd6 Bf5 Bc4 Bfc2 Re4 Rf1 e1R Qd7 R1e3 Re1 Be2 Qc8 Rd3 Qb7 Rd2 Bc5 Rf4 Bg6 Rb2 Bgc2 Bc4 Re3 Be2 Rc3 Nh3 Re1 Ng1 Kh1 g2+ Kh2 Nh3 Bb6 g1B+ Kg3 Be3 Ba7 Ng1 Bg6 Rd7 Bgc2 Kd6 d5 Rb4 Bb6 Beg5 Bf2 Be3 Qc8 Ba7 Bb7 Qc4 Bc6 Rd8 Be8 Bb8 Qb7 Qg4+ Kh2 Qc8 Kg3 Rd7 Beg6 Rf7 Rf1 Rff4 Re1 Rfd4 Bf7 Rd2 Bfg6 Bc4 Ree3 Kc5 d6 Kd4 Nc6+ Kd5 Re8 Be2 Ne5+
k2rb3/N1n1Pr2/4p2K/1N2QbR1/N1PbPr1B/nr4n1/P1qB4/q3NR2 b - - 0 1 illegal: No proof kernel
2BRq3/b1B1PQ1k/1PBr3N/1r1r1B2/R2Pnn1P/4rb2/1p3qb1/1Kn4N b - - 0 1 illegal: No possible last move
3bR2N/1n1P3n/RpPb2Pr/6rb/2Bq1q1R/1krP1n1K/R4N2/1bB1Q3 b - - 0 1 illegal: No proof kernel
2Q2K2/pq2R2r/nRbb1b2/BnP1r1b1/N1BN1rP1/4P2k/P1qR1R2/3n4 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 g5 Ke2 c5 bxc5 gxh4 Ke3 Qb6 Kd4 e3 Kd3 e2 Kc3 Qd8 d3 e1B+ Bd2 e5 Kb2 e4 Rh2 e3 Rh1 e2 Be3 Qg5 Bc1 Qe3 fxe3 Bg7+ Nc3 Bh6 Nb1 Bf8 Kb3 Kd7 Kc4 Ke6 c6 Kf5 Kd5 Kg4 c4 b5 c5 f5 c7 h5 d4 h3 g3 f4 Qc2 h4 Qc4 h2 Ba3 f3 Qc1 f2 Ke5 h3 d5 b4 d6 b3 d7 b2 Ke6 Nf6 Kf7 Rh7+ Kg6 Ne8 d8R Bc3 Nf3 e1B Qd2 Nd6 Nd4 Bb7 c8R Bc6 Nc2 Nb5 Nd4 Bd6 Rf8 Na6 Bc4 f1R Rcd8 Rf4 Bb4 Bf2 Rf1 h1N Ba5 h2 Rf7 Kh3 g4 Bh4 Rf2 Bg5 Re7 Rb8 Rdd7 Rbf8 Rb7 R8f5 Rb6 Rd5 Qd3 Re5 Rd2 Nf2 Qf5 h1Q Qc8 Nd1 Rf2 Rh6+ Kg7 Rh7+ Kg8 Qe4 Rd2 Qc2 Rf2 Bb4 Nc3 b1Q Na4 Be1 Rd2 Beh4 Rf2 Bf6 Kf8 Bhg5 Rd2 Qf5 Rf2 Qd7 Rd2 Qc2 Rb1 Qc7 Rb2 Qb7 Rf2 Qd3 Rbe2 Qc2 Rd2
2q5/k2nr3/r5b1/1nP1R3/2PprN1K/P2nn2Q/1bP1BnN1/1RB2BnB b - - 0 1 illegal: No proof kernel
1RnB1n1n/b3P1b1/Kp1Nb3/1N1r3n/R2N2n1/n4Q1r/1q1PBPP1/5kN1 b - - 0 1 illegal: No proof kernel
r3BR2/1n1P2kP/1N3Q1b/r1r3r1/rnb1nr1P/3P1pN1/1KNN3q/2B1R3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 b4 axb4 c4 d5 cxd5 exf4 e4 c5 a4 b5 h4 g5 d3 f5 Kd2 Kf7 Kc2 c4 h6 c3 d6 f3 e5 f4 h7 g4 e6+ Kg7 e7 g3 a5 g2 a6 f2 d7 Qc7 a7 Na6 Kb3 c2 Be3 c1R Ra2 Nc5+ Kb2 b3 Qe2 b4 Rh3 Nb7 Ra1 Nf6 Ra6 Ne4 Rc6 Rc5 Nf3 g1R Nfd2 Rgg5 Bg2 f1R Rh1 f3 Rb6 Qh2 Na3 Ra1 Nc2 Raa5 Bh3 Rg8 Qf2 Rg4 Rc1 Rf4 Re1 Ra4 Be6 Rca5 Kb1 b2 Bf7 Rc5 Be8 Rca5 Na3 Rc5 Ka2 b1R Rf6 Ra1+ Kb2 b3 Nc2 Raa5 Qf1 R1a4 Qh1 Nbd6 Qf1 Ba6 Qh3 Bc4 Qe6 Nb7 Qd6 Rac8 a8N Rg5 Nb6 Rcc5 Nf1 Rh8 Bc1 Rg8 Kb1 b2 Nd2 Kh8 Qc6 Bh6 Rf8 Kg7 Qe6 Rcd5 Bg6 Rdc5 e8N+ Kh8 Nd6 Kg7 Be8 Rh8 Ne3 Rg8 Kc2 b1N Kb2 Nbc3 Nc2 Nd5 Qf5 Nb4 Qe6 Nc3 N6e4 Rh8 Ng3 Ne4 Qe7+ Bf7 Qd6 Be6 Rf5 Rcb5 Bf7 Rha8 Be8 Rc5 Rf8 Bc4 Qf6+
1N3kR1/8/2Pb3B/r1R1n3/2PPB1pK/1b1B1qBb/1P1b1b2/q2bNnQr b - - 0 1 illegal: No proof kernel
1n3r1B/1b2QP2/NB1r1N2/PBrp3q/P2nbK2/Rr4P1/k1r4b/3BR1b1 b - - 0 1 illegal: No possible last move
1B6/RnrBrP1q/n3pnb1/4b3/K3P1N1/B2P1bR1/QBkb2NP/n3n3 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 Qc2 d6 Qg6 d5 Qg5 f6 cxd5 f5 gxf5 Be6 Qg2 Bc8 Qg4 hxg4 Kd1 Kd7 Kc2 Kd6 Kb3 Kc5 f4 Kd4 a4 b5 f6 g5 f5 c5 a5 e6 a6 c4+ Ka2 c3 Kb3 g3 f7 g4 a7 g2 f6 g3 d6 c2 d7 Rh7 Ra3 Qc7 d8B Bd6 f8B Re7 Ra4 Bb7 Na3 Be5 Ra5 Na6 Nb1 Rc8 a8Q Bf3 Nh3 g1B Qb8 g2 Bh6 Be3 Bg5 g1N Ba3 c1N+ Kb2 b3 Nf2 b4 Ng4 Qb7 Ra4 Rcc7 Bf4 Kc4+ Nc3 Nd3+ Ka1 b2+ Ka2 b1N f7 Ndc5 Qa7 Nf6 Nd1 Qe4 Bg3 Bh6 Nde3+ Kd4 Ng2 Qh7 Qa8 Nb7 Kb3 Ke4 Bb2 Na3 e3 Bhf4 Bb5 Nc2 Bd7 Kd3 Ra1 Bh6 Ka4 b3 Ba3 b2 Qa7 Nh3 Rhg1 b1B Bb2 Nf2 Qa8 Re8 Be7 Bhf4 Bd6 Re7 Bda3 Bg5 Ra2 Na1 Bf4 Kc2 Bg3 Nd3 e4 Ne1 d3 Bd2 Nf2 Bh5 Ng4 Bg6 Bf2 Bg5 Ba7 Bh6 Bb8 Bd2 Rf1 Kd1 Rf3 Bc2+ Kb5 Bb3 Rg3 Kc2 Qa7 Kb1 Qa8 Bd1 Qa7 Kc2 Ka4 Nb3 Qd4 Be2 Qd5 Bf3 Ra1 N3a5 Qa2 Nb3 Rb1 Na1 Rd1 Nb3 Ra1 Ne8 Bc5 N7a5 Qa3 Nb7 Kb5 Nb4 Ra2 Na1 Qb3+ Kb1 Ra7 Nf6 Ka4 Na6 Qa2+ Kc2 Bca3
NKR2nqQ/1n2P2R/8/b1bP1P2/rb1N1N1p/1rrP1b2/2B4B/Nbk3r1 b - - 0 1 illegal: No proof kernel
2B2n1R/n2PKPqn/qk2NN2/4P3/RPn2B2/3Rp2n/2rb3n/2Rb1Qr1 b - - 0 1 illegal: No proof kernel
1B3Q1R/pk4b1/nN2qR2/1nPb2K1/n1nrP3/1P1r1R2/4rb1P/1RN1b2B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 fxe5 c5 d4 cxd4 Kf2 d5 Kg3 Kd7 Kf4 Kc7 c4 g5+ Kg3 f5 e6 d3 e3 f4+ Kf2 d2 b3 g3+ Kf3 g4+ Kg2 d4 e7 d3 e8R Nf6 b6+ Kb7 c5 Bg7 Re4 Rh4 Rea4 Qd7 R1a2 Ne8 Nc3 Nc7 R2a3 Qe6 Nb1 Nb5 Be2 f3+ Kf1 f2 Kg2 f1N Rf4 Na6 Rf3 Bd7 Qc2 d1N Nc3 d2 Qf5 Bc6 Na4 Re8 Qf8 Bd5 Bd3 Ndc3 Ne2 d1R Be4 Rh3 Ra1 Rd4 Rb1 Nd2 Rhf1 Nc4 Rf6 Rd3 R1f3 Rd4 Bb2 Re7 Nc1 Re8 Kg1 g2 Kf2 g1B+ Kg2 Kb8 b7 g3 Nb6 Na4 Bc3 Kc7 b8R Bf2 Rc8+ Kb7 Ba1 Rd1 Be5 Be1 Bb8 Rd3 Rd8 Rh4 Rc8 Rg4 Kh3 g2 Rd8 g1B Rc8 Rg3+ Kh4 Bgf2 Rd8 Rh3+ Kg5 Rd1 Rg3 Rh4 Bh1 Rhd4 Rgf3 R1d2 e4 Re2 Qd6 Rh8 Qf8 Rh3 R3f5 Rhd3 Rf3 Nab2 Qd6 Na4 Rh8 Ree3 Qd8 Re2 Qf8
1BN3B1/8/RN1bn3/2Pb1n1K/1n1nPb2/q1pr3B/1k1PP2R/QBq1r1b1 b - - 0 1 illegal: No possible last move
qNrr4/r3P3/2nq2rp/6R1/P1KN1q1N/PQ1N1n2/R1B2B1P/1r3nbk b - - 0 1 legal: proof: f4 e5 d4 a5 b3 a4 bxa4 c5 Qd3 cxd4 Qd2 Qg5 Qd1 Qd8 g4 f5 Qd2 b6 Qd1 Bb7 Qd2 Be4 Qd3 exf4 Qd1 f3 Bg2 f4 Bf1 Bf5 gxf5 Qf6 Kf2 Qe7 Ke1 Qd8 Kd2 Ke7 Kd3 Kf6 e4 Ke5 c4 g5 c5 d5 a3 g4 c6 h6 c7 g3 c8N f2 f6 f3 f7 b5 Nd6 b4 Be2 f1N Ne8 g2 Nc7 f2 Bf3 b3 Ne8 b2 Ng7 Nc6 Be2 Ra7 Bf3 Bc5 f8N Qa8 Qe1 Nf6 Nd2 Kf4 e5 b1R e6 Nd7 e7 Nde5+ Ke2 Rg8 Be4 Nf3 Nd7 Rc8 Kd3 Kg4 Nh3 g1R Qe2 Kh4 Nb3 Rg6 Qa2 Bb6 Kc2 d3+ Kc3 d2 Nd4 d1R Nf4 Rd2 Nd3 Kh3 Qc4 Kg2 Ra2 Bc5 Qb3 Bb6 Nb5 d4+ Kc4 Rd1 Nf5 Rd2 Nb4 d3 Nbd4 Rd1 Be3 d2 Nb8 Ng3 Ne6 f1Q+ Kc3 Qg1 Bc5 Qe3+ Kc4 Nf1 Bc2 Qf4+ Bd4 Ng3 Rf1 Bc5 Rf2+ Kh1 Nh4 Nf1 Rg2 Bb6 Rg5 Bc5 Kd3 Bb6 Bh8 Bg1 Bd4 Re1 Kc4 d1Q Kb5 Re2 Bf2 Rd2 Kc5 Rd6 Kb5 Qdd4 Nd3 Qdf6 Kc5 Rdd8 Nd4 Q6d6+ Kc4
b2n4/R1R1Q1K1/3q1rN1/b2PRq1p/3PbBPP/2qR4/BN1n1nq1/5n1k b - - 0 1 legal: proof: c4 b5 e4 bxc4 a4 a5 d4 g5 f4 d5 exd5 gxf4 Qd3 Ra6 Qc2 Rb6 Qd1 Rb5 axb5 Ba6 Nf3 Bb7 Ng1 Bc8 Kf2 f5 Kf3 Kf7 g4 Kf6 b4 Kg5 h3 Kh4 b6 e5 b5 c5 b7 h5 b6 a4 Qd2 c3 Qa2 a3 Qb2 e4+ Kf2 c2 Qa2 c4 Qb2 e3+ Kf3 e2 Bd2 c1Q Bc3 e1N+ Ke2 Kg3 h4 a2 Qa3 Nf6 Nh3 Rh6 Nf2 Qb2+ Nd2 f3+ Ke3 Nd3 Qa8 Bb4 Rd1 a1Q Qa7 Qab1 Rg1+ Kh2 Qa6 Ne4 Qa3 Nc6 b8R Ba5 Nh3 f2 Nf4 Bb7 Ra8 Q2a2 Bb2 c3 Bc1 c2 Ra7 Ba8 b7 Qab2 Rg2+ Kh1 b8R Rg6 Qe7 Qd6 Rg8 Nd8 Nc4 Rh6 Be2+ f1B Rg5 Q2a2 Bd2 c1Q Rf2 Re6 Ng6 f4+ Kf3 Qcc2 Re5 Qab3 Nb2 Qbc4 Nh8 Rf6 Be3 Qcb4 Rc1 Qcd2 Rcc7 Qbc3 Rg2 Qdc2 Rg3 Bh3 Bd1 Qh2 Bb3 Bg2+ Ke2 Nd2 Ba2 Nb3 Bd2 f3+ Ke3 f2 Rf3 f1N+ Ke4 Rh6 Kf5 Nf2+ Kg5 Rf6 Ng6 Qf5+ Kh6 Qg3 Bf4 Nbd2 Rfe3 Be4 Kg7 Qg2 Rd3
b1qq4/3N1qR1/P2NQ2P/1n1rn2p/KP1P3n/6BR/1prbb3/1BR1R1k1 b - - 0 1 illegal: No possible last move, all moves rejected
Qn1b3b/1Pq1BbP1/5q2/4Nn2/Nq4r1/p1RNpPk1/3P3r/1RnBN1K1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 gxh4 b4 Kd7 g4 Kd6 g5 Ke5 d6 Kf4 f3 e5 Kf2 h5 d7 c5 b6 a5 b5 c4 b7 c3 g6 a4 b6 c2 Bg2 a3 Qe1 h3 Bb2 c1N Nc3 h2 Na4 e3+ Kf1 e2+ Kf2 e4 Bh3 h4 Bf1 h3 Rb1 Nh6 Bf6 Nf5 Be7 Qc7 d8N Bg7 Nf7 Be6 Ne5 Bf7 Rb3 Rg8 Rc3 Bh8 Qd1 Rg7 Qc2 Rh7 g7 Ra5 Qb1 Rh4 Qd3 Rg4 Qa6 Rd5 Qa7 Rd6 Qa8 Rh6 Nc4 Rh7 Ne3 Rhh4 Nc2 Rh7 Bg2 e1B+ Kf1 Bh4 Ne1 e3 Ne2+ Ke5 Rg1 h1Q Nf4 Qh2 Rh1 Qd6 Rg1 Qf6 Rh1 Qg3 Rg1 h2 Nfd3+ Ke6 Bh3 h1Q Bg2 Qc7 Bh3 Nd7 b8N Rh5 Nc6 Nb8 b7 Qhh2 Bb4 Qhf4 Be7 Qb4 Nce5 Bg5 Bg2 Rh2 Rh1 Nd4 Kg1 Kf5 Ndb2 Kf4 Nbd3+ Kg3 Bf1 Nf5 Be2 Qg6 Bd1 Qa6 Bc5 Bd8 Bf8 Qf6 Be7 Re2 Rh5 Rh2 Rh6 Qg5 Rb6 Qf6 Rb5 Qbc4 Rb2 Qb4 Rb1
nr2R3/qP2P1Pp/5RNP/2nk2r1/q1bb1Rp1/Q1RBn1K1/6b1/N2q2B1 b - - 0 1 illegal: No proof kernel
5Bn1/P3N3/3k1p1N/N3QP2/P1Rr1b2/2Kbr1qn/r1Pp1nNq/Bq5R b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c5 b4 cxd4 bxa5 d3 Bg2 e6 Bd5 exd5 Ba3 d4 Bb2 Be7 Bc1 Bf8 Kd2 Ke7 h4 g5 f4 d5 e4 b5 f5 g4 a6 g3 h6 f6 h7 g2 a3 b4 h5 b3 e5 b2 h6 Nd7 e6 Kd6 e7 Qc7 Ne2 g1N Qe1 Nh3 Nf4 Ne5 Nc3 b1Q Bb2 Ng4 Ng2 Ngf2 Ra2 Bd7 Ba1 Bb5 Rb2 Bg7 Rb4 Qb8 Qe3 Qg1 Rc4 Qh2 Na4 Ra7 Nc5 Qc7 Nb3 Qb8 Kc1 d2+ Kb2 d1Q Na5 d3 Kc3 d2 Qd4 Qb1 e8N+ Ke7 Nd6 d1R Qc5 Rd4 Nc8+ Kd7 Ne7 Qbf4 Rb4 Bd3 Rc4 Qfg3 Qb5+ Kd6 a4 Rb7 Qe8 Rb2 a7 Ra2 Ng6 Ne7 Qb5 Rg8 h8N Re8 h7 Ng8 Ne7 Bh6 Qb2 Bf4 Nf7+ Kd7 Nh6 Kd6 Ng6 Re3 h8B Rde4 Ne7 d4+ Kd2 Bf1 Qc3 d3 Bg7 Rd4 Bf8 Be2 Qb2 Bf1 Kc3 d2+ Kb4 Bd3 Kc3 Qe1 Qb5 Qb1 Qe5+
6R1/1b1Pr1N1/pKnq2B1/1p3Qk1/BB4n1/1b2r1P1/1PN1bP1R/1q1b1bB1 b - - 0 1 illegal: No proof kernel
2Rr1rb1/1NkPp2P/1R3r2/3P4/6nB/RqbNr1r1/1pRP3Q/4qBnK b - - 0 1 illegal: No proof kernel
bR1N3N/p1K1bn1r/4N1N1/3P1q1P/5PkB/P2p2R1/1Q1n2nB/1n2nrq1 b - - 0 1 illegal: No proof kernel
3NQ1q1/1b3n2/5PpP/b1qkP1R1/4br2/1BbnpB2/n1K1R1NP/2B3rB b - - 0 1 illegal: No proof kernel
2B3N1/3n2r1/3PR1N1/kpBqqb1r/2qN1P2/b5Pb/p2RP1nK/1q2N1Q1 b - - 0 1 illegal: No proof kernel
N1NK2bb/2B5/3p3q/1Pkb3B/2P4P/PR1q2p1/2Br1n2/QBnR1nbr b - - 0 1 illegal: No proof kernel
r3b3/2b1kNpr/1n2q2B/Pp2P2n/1qPr1Q2/2N2BRN/K1P5/br1NR3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d3 e5 fxe5 axb4 Bg5 c5 Bc1 c4 dxc4 Ra7 Qd3 Ra4 Qd1 Ra8 Kd2 d5 e4 b5 a4 f5 h4 b3 Kc3 g3 Kb2 d4 a5 d3 h5 d2 h6 g2 e6 f4 h7 f3 e5 f2 e7 Bd7 Be2 f1Q Bh5+ Qf7 Rh4 Nf6 Nh3 g1B Qf3 d1R Qd5 Rd4 Bf3 Nh5 Nc3 Qe6 Rg4 Bc6 Bg5 Nd7 Bh6 Nb6 Nd1 Qdd6 Rg3 Qb4 Qe4 Kf7 e8N Ke7 Nf6 Be8 Kb1 b2 Ka2 b1R Qf4 Be3 Ne4 Bc1 Rg4 Bb2 Rg5 Kd7 Rg6 Bd6 Nec3 Bc7 Rg2 Ke7 Rg3 Rf8 h8N Rg8 Nf7 Rh8 Be4 Rh7 Bf3 Rc1 Rb1 Ba1 Nb2 Rh1 Re1 Rf1 Re3 Rc1 Nbd1 Rb1 Re1
1Q1b2B1/BN2p1n1/Kb1Pb1pk/1Prq3N/1B5R/B1qbrn2/2P1R2P/2n5 b - - 0 1 illegal: No proof kernel
3r1NN1/1nqP4/1b1qbkBp/Rr1Q1rN1/2R2P1r/3P1bK1/1N1Pp1n1/4B3 b - - 0 1 illegal: No proof kernel
n1R1B3/RB1p2R1/5R2/N1bqb1pK/N2q4/2PPbPPQ/r2bn3/1qr2k2 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 a4 g5 h5 Bb7 Ba3 fxe4 axb5 Ba6 b6 Bc4 b5 Bf7 Bb4 Bg6 hxg6 cxb4 Ke2 a5 g3 h5 b7 e5 d3 Ke7 g7 Ke6 b6 Kf5 Nd2 Kg4 Nb1 e3 Ra4 e4 Rh2 b3 Rd4 a4 Rc4 b2 Qc1 h4 Qe1 a3 Qc3 h3 Qd2 a2 Rh1 a1B Rb4 h2 Qc1 Qf6 Nc3 b1Q Bg2 Ne7 g8B Nf5 Bf7 Na6 b8R Bc5 b7 Rc8 Ra4 Qd4 Be8 Nc7 Nf3 Ra6 Qb2 Na8 Rf1 h1Q Nd2 Rcc6 Bf3+ Kh3 Rc8 Rc7 b8R Raa7 Rc4 Ra2 Ra4 Kh2 Nc4 Kh3 Bg4+ Kg2 Ra7 Rc6 Qb3 Bb2 Na5 Bc1 Ke1 e2 Qe6 Bb2+ Kd2 e1B+ Ke2 Bd2 Na4 Bf4 Rb6 e3 Qh6 Rc7 Rg6 Bc1 Rg7 Be5 Rd1 Rc6 Rd2 Kg1 Qh3 Qhd5 Bf3 Rc7 Be4 Rc6 Kf3 e2 Kg4 e1B Rd1 Be3 Kh5 Rc7 f3 Kf2 Ra6 B1d2 Rg1 Ke2 Rg2+ Kf1 Rf6 Rb7 c3 Rbb2 Rfc6 Rc2 Rcg6 Rc1 Rf6 Qd6 Bb7 Q4d5 Qg4 Nd4 Rh2 Qdb6 Rh4 Ne2 Qh3+ Ke1 Rg4 Q6b4 Rgf4 Qbd4 Ra6 Kf2 Rff6 Ke1 Ra7 Kf2 Qe6 Kf1 Qh3+
3RR2n/1N1pr1qP/QRN2p2/P1qPn1q1/b1B1K3/qb1n2Br/1RP5/4k3 b - - 0 1 illegal: No proof kernel
3QKb1B/qP1N1r1n/3b2n1/p4B1N/P3R3/1Pq1qp1N/2Pr2nn/N3kR2 b - - 0 1 illegal: No proof kernel
2r5/QPNKRR1B/1Nrb1qP1/7R/q3pn2/1p1P2P1/2b2q1B/qRn2k1b b - - 0 1 illegal: No proof kernel
4Q2N/bP5P/BP2BrPR/Bbbr2pn/2nk1R2/1b2r2p/3q2qN/K2B4 b - - 0 1 illegal: No proof kernel
r2bR3/NP3p1N/K1nk2n1/3P3p/B1PR2Br/R1R1b1q1/b5QP/1q4nn b - - 0 1 legal: proof: e4 b5 b4 c5 f4 d5 a4 g5 fxg5 dxe4 Ba3 Nf6 axb5 Nh5 b6 Nf6 b5 Ng8 Bb4 cxb4 Ke2 Kd7 d4 a5 g4 e5 b7 h5 g6 a4 b6 b3 g7 b2 g5 a3 g6 a2 Nc3 b1Q Nf3 e3 Kd3 e4+ Kc4 e2 Nb5 e1N Na7 e3 Bh3+ Kd6 Qd2 e2 Ng5 Nc6 b8R Nf3 b7 e1N Qg2 Nd3 Rd1 Be7 Bg4 Qc7 Nh7 Ng1 d5 Bf5 c3 Bd8 Rc8 Nge7 g8B Nf2 g7 Ng6 Rd4 Qb8 Rc7 Nh1 Rc8 Bc2 Rc7 Bb3+ Kb5 Nb4 Rc8 Nc6 Ka6 Qc7 Nf6 Qb8 Bh7 Re8 g8R Re4 Re8 Qc7 Bf5 Rh4 Bg4 Qe7 Rc7 Qe5 Rc8 Qg3 Rc7 Nf8 Bc2 Ng6 Nh7 Qd1 Rc1 a1B c4 Qdd3 Rce7 Ba2 Ba4 Qb1 Rc3 Bb2 Ra3 Bc1 Ree3 Bd2 Red3 Be3 Rdc3
2n4K/1PpB2r1/1RQ5/1rPnPb2/B1R2N2/1P2qRrp/k2R1qbb/5bN1 b - - 0 1 legal: proof: e4 b5 h4 f5 a4 g5 axb5 gxh4 d4 e5 dxe5 f4 Be3 fxe3 Ke2 Kf7 Kf3 Ke6 Kf4 h5 g4 a5 c4 d5 b6 h3 b7 a4 f3 a3 g5 h4 c5 h2 g6 e2 g7 e1Q Ba6 a2 Qc2 h3 Bc4 Ne7 Kg5 Nd7 g8R Rh7 f4 Nb6 Qg2 Rb8 Bb5 d4 Ba4 d3 Nc3 d2 Rb1 d1B Nd5 Rg7+ Kh6 a1R Qf3 Rg3+ Kh7 Qf2 Rg4 Be2 Kh8 Bf1 Qg2 Qe8 f5+ Kf7 f6 Bf5 Rf4 Ke6 f7 Nec8 Rh4 Bh6+ f8R Bf4 Rd1 Rg7 Rd2 Bg3 Rf4 Ra3 Rf3 Bf4 Rc3 Qe7 Rc4 Rag3 Qf3 Ra8 Qg2 Ra5 b3 Rb5 Rf6+ Kd7 e6+ Kc6 Rh6 Bd6 Nf4 Nd5 Ng6 Qg5 e7 Qge3 Nf4 Nc3 Nge2 Nd5 Rg1 h1B Qf3 R3g4 Rg3 Bhg2 Ng1 R4g6 Qh5 Rg5 Rf3 Rg3 Qg6 Rg4 Ne6 Bh2 e5 Rg3 e8B+ Rd7 Bf7 Re7 Bg8 Rg7 Rc3 Nde7 Rdc2 Kd5 Nf4+ Kd4 Be6 Nd5 Bd7 Qd3 Rb2 Qe4 Rcc2 Qee3 Rd2+ Kc3 Rbc2+ Kb4 Rc4+ Ka3 Qh5 Qd3 Rb6 Qe4 Qg6 Qee3 Rdd4 Kb2 Qc6 Ka2 Rd2+
qR1bn3/Rp2q2R/Pp2nP2/8/1Bn1r2N/nb2P2B/1krP4/NbQ1RK2 b - - 0 1 illegal: No proof kernel
3Nr2b/PpBq1PP1/RPNBp1R1/q1r5/3Q2b1/Bk1b1B2/1q3n1K/1b1n4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Kf7 b5 Ke8 Qb3 Bd7 Qc4 Bc8 Qb4 axb4 f4 Kf7 Kf2 c5 a4 h5 d4 c4 g4 b3 Kg2 b2 b6 h3+ Kh2 h4 f6 c3 d6 Ke6 a5 Kd5 d7 c2 f5 Bg7 g5 Rh5 f7 Bf6 f8B Nc6 a6 Na7 g6 Bh8 f6 Nb5 f7 Nc3 a7 Nf6 g7 Nfe4 Nf3 Nf2 Be2 Ncd1 Nbd2 b1B Ba3 c1Q Nc4 Qb2 Rg1 Qe8 d8Q+ Qd7 Rg6 Rb8 Kg1 h2+ Kg2 h1B+ Kh2 h3 Ng5 Bf3 Na5 Bfe4 Nc6 Bed3 Bf3+ Kc4 d5 Kb3 d6 Ra8 Ne6 Rc5 Bb4 Rb8 Ra6 Ra8 Ba3 Rb8 Kg1 h2+ Kg2 h1Q+ Kg3 Qe8 d7 Qe1 Kh2 Ra8 Qc7 Qec3 d8B Qa5 Qe5 Qd7 Bc7 Qd5 Ned8 Bg4 Qe2 e6 Qe4 Qd7 Qd4 Rc8 Bfd6 Rb8 Ne7 Rc8 Ndc6 Rf8 Nd8 Re8 Nec6
nb2qrN1/p1Rb3K/2b1q1PR/4B1P1/B4knN/r3b2P/1PQ4p/r1N1N3 b - - 0 1 illegal: No proof kernel
1KN3N1/2Pp2P1/NP6/1Pkn1b1p/3N2Rb/Rb2b1Qr/r2B4/1bbBn1q1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 gxh4 Ke2 h5 Kd3 a5 Kc4 e5 Kd5 Ke7 c4 e4 b4 h3 g4 e3 f4 a4 c5 a3 g5 h2 g6 d3 c6 e2 b6 e1B b5 d2 f6+ Ke8 g7 a2 f5 Bh4 f7+ Ke7 Nf3 Na6 Nd4 Bb7 Be2 Nc5 Qg1 d1B Na3 Nd3 Nac2 Ra3 Bd2 Ne1 Nb4 Rh3 Qg3 Bb3+ Kc5 Qc8 Bd1 Nf6 Rg1 h1B Rg2 Nd5 Rg1 Rh6 Rg2 Rd6 f6+ Kd8 Rg1 Be4 Rg2 Be7 f8N Bb1 f7 Beg5 Nh7 Ke7 f8N Be3 Nf6 Qe8 Rg1 Qg6 Rg2 Qf5 Rg1 Qf1 Rg2 Qg1 Ng6+ Kf7 Ng8 Bf5 Rb1 a1B N6e7 Bb2 Nc8 Bc1 Ra1 Rf6 Ra7 Bb1 Ra3 Rf2 Kd6 Ke8 Bc3 Ra2 Bd2 Ne7 Kc7 Nd5+ Kb8 Kf7 Ne2 Ke6 c7 Bf5 Rf2 Ba8 Rf4 Bb1 Na7 Kd6 Nd4 Kc5 Rg4 Nf4 Nh6 Bae4 Ng8 Nd5 Nc8 Bf5 Na6+
2N1rrB1/BP2kP1p/1bn1b1qn/1B1n3b/3n3P/4RR2/K1B1bp1P/3Q2N1 b - - 0 1 illegal: No proof kernel
k2N3R/1N3n1q/b3nnpn/1Pqp4/q1n5/PN2RNP1/4PBr1/b1Q2K1B b - - 0 1 illegal: No proof kernel
bR3r2/K3k1pB/1p1rR2r/3RqQ2/1PqP1Pr1/b2BN3/3r1RPN/3q2n1 b - - 0 2 illegal: No proof kernel
q1R1q1rB/1qr5/4p1pK/Pk3PP1/n4nBP/1NRrBB1n/b1q4Q/6N1 b - - 0 1 illegal: No proof kernel
6R1/1nqp2np/1N1P2N1/Qqq1n1BR/2r1PPbP/2bk2bB/3R2K1/R1q5 b - - 1 2 legal: proof: f4 c5 a4 e5 g3 exf4 b4 b5 axb5 cxb4 Na3 a5 Kf2 f5 Bb2 f3 Ke3 f4+ Kd3 f2 Nb1 f3 Bc1 Ra6 Ba3 Rf6 Bc1 Rf4 gxf4 Qf6 Ke4 Qg5 Kd3 Qd8 Ke4 Ke7 h4 Ke6 d4 g5 c4 g4 c5 b3 c6 b2 c7 g3 e3 g2 b6 a4 b7 a3 Rh2 a2 Bd2 Bb4 Be2 f1Q Nc3 b1Q+ Bd3 f2 Kf3 Na6 b8R Nf6 Qc2 Ng4 Rb7 Nc5 Kg3 Qfc1 Qb2 f1N+ Kh3 Ne5 Nf3 g1Q Na4 Kd5 Qc3 Ng3 Bf1 Ke4 d5 Nh5 d6 Ng7 Rb5 Ba6 c8R Nb7 Nb6 Qc7 Rg8 Ba5 Rd5 Qb5 Qa3 Qg5 Bc3 Qbc5 Rhd2 Be2 Bb2 Qh5 Kg2 Qb5 Rc2 Be1 Qa5 Bg3 Bd4 Kd3 e4 Qf7 Rdc5 Qfc4 Rd5 Q4c5 Rb2 Ng4 Rh5 Ne5 Bc3 Nf7 Bf6 Ne5 Rab1 a1B Bg5 Be1 Ra2 Bac3 Rba1 Bg3 Rd2+ Ke3 Nd4 Bd1 Nc6 Bg4 Rc8 Rf8 Ne7 Rf5 Rg8 Rf8 Re2+ Kd3 Ng6 Rc8 Kh1 Qd2 Bh3 Qc1+ Kg2 Ra8 Qb4 Ra4 Qa5 Rc4 Rd2+
5qq1/q3p1b1/n1brB1PR/1rpb1P1k/K1RB4/1rPqPN2/R7/RQN5 b - - 0 2 illegal: No possible last move, all moves rejected
1b1r3B/2q4B/1Pnpp3/P2qnn2/3R1K1R/QP1bnB2/3NP1qB/b2Nk3 b - - 0 1 illegal: No proof kernel
4r2B/1bb1r1pR/b4PN1/1k4P1/3KQnPp/1r1n1PNN/1n6/2Nr1BRr b - - 0 1 illegal: No proof kernel
3Nq3/2k4p/2P2pP1/2nr1P1q/Bq4Rn/3bqP1B/q2RQ2N/q2BBKb1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 h4 g5 hxg5 a5 f3 axb4 f4 b5 Rh2 Ra3 Rh1 Rf3 exf3 Bh6 Bd2 Bg7 Bc1 Bf8 g4 e5 c4 d5 a4 Kd7 g6 b3 g7 b4 c5 b2 c6+ Kc7 g5 f6 f5 b3 a5 d3 a6 e4 a7 d4 a8B d2+ Ke2 e3 Rh2 Bc5 Ra3 Nd7 Bg2 d3+ Kf1 Qe8 Rh3 Ne7 g8B Ng6 Rh4 Ba6 Rg4 Nh4 g6 Bc4 Qe1 d1Q Bb7 d2+ Ne2 Bd3 Ra2 Bb6 Be6 Nc5 Bh3 Qc2 Bg8 d1Q Nd2 b1Q Ba6 b2 Bb3 Qa1 Bb5 b1Q B5a4 Qcc3 Bb2 Qb4 Bc3 Qdc1 Rb2 Qba2 Bd1 Rg8 Qf2 Rg7 Rc2 Rd7 Rb2 Rd5 Qe1 Bb1 Nd4 Bd3+ Qe2 Qc2 Ke1 Qcb3 Nf1 Q3c4 Rd2 Ba7 Qf2 e2 Nh2 Bb6 Qf1 Qcb3 Kf2 e1Q+ Kg1 Q1e5 Qe2 Qbb2 Kf1 Qe3 Rc2 Qbc1 Be1 Qh6 Rb2 Qce3 Rd2 Qh5 Nb3 Nd7 Na5 Bd4 Nb7 Nc5 Rf4 Q3e4 Nd8 Bg1 Rg4 Qed4 Rb2 Qde3 Rd2
1r2BRk1/2B5/1pRq3P/q3Nb1n/P1Q2pP1/2qn2b1/3B1PNq/1Kb2B1b b - - 0 1 illegal: No proof kernel
1K3BR1/1Pp5/q4N2/1rnrb3/nQb1B1Bp/NPP2pk1/3b1rnP/1R1B4 b - - 0 1 illegal: Other
N1q4Q/4B2p/B1r2ppP/1P1Pn1kb/1B4q1/n1R2r1P/Br1nKR2/2N4b b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 g3 dxc4 Ra2 Be7 Ra1 Bh4 gxh4 Qd6 Qb3 Qd7 Qd1 Qd8 b4 Ke7 e4 Kf6 d4 c5 b6 a5 h3 c3 h5 a4 b5 a3 d5 f3 h6 g6 b7 c4 Rh2 a2 Ne2 c2 Nbc3 f2+ Kd2 Nc6 b8B Kg5 e5 Nf6 e6 Ne5 e7 Rf8 e8B Qd7 Bb2 c1R Nf4 Ne4+ Ke2 Nd2 Na4 c3 Nb6 c2 Ba3 Rb1 Bbd6 c1Q Bac5 Rb2 Nd3 Ra6 Na8 Rc6 Bb4 Qc5 Rb1 a1N Nc1 Nc2 Ra1 Qd4 Ra3 Q4g4+ Rf3 Qd8 Bd7 Na3 Qb3 Qc7 Bf5 Bd7 Qc3 Qc8 Qd4 Nec4 Qh8 Ne5 Kd1 Be6 Bc4 f1B Rf2 Bg2 Ke2 Bh1 Bdc5 f6 Ba2 Re8 Be7 Bd7 Bed6 Re6 Be7 Rc3 Ke1 Rec6 Rg3 Rf3 Be6 Rf4 Rc3 Rf3 Ke2 Qg1 Bg8 Bg4 Be6 Bh5 Bd7 Qg4 Bf5 Qe8 Bc8 Qed7 Bb7 Qc8 Ba6
4kb1n/1Nq2p1K/P1nrP1r1/4qpqP/p3b1Q1/B1B2B2/R1PB3N/Rb6 b - - 0 1 illegal: No proof kernel
4Qr1b/1PP2p1K/B2Nk1p1/3Rn1r1/5P1b/1q1R3N/2pnPN1N/B4bnq b - - 0 1 illegal: No proof kernel
B1QBb1k1/Pnpp2Pr/N1q1Pqq1/5RNN/2N2r2/1bp5/1P5b/nK1R4 b - - 0 1 illegal: No proof kernel
3Knr1N/2BPnR1n/P1BB2R1/3p1P2/1N3n1q/n4rpb/Q2Pp2b/B3k3 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 hxg4 c5 f5 exf5 d5 Bb5+ Qd7 Bf1 Qd6 cxd6 Kd7 Na3 Kd8 Nb1 Ke8 Ke2 Kd7 Ke3 Kc6 Kf4 Kc5 Kg5 Kd4 f4 e5 a4 b5 h4 c5 a5 g3 a6 e4 f6 b3 f7 b2 h5 g2 h6 b4 h7 b3 Rh4 c4 Rg4 e3 Qf3 c3 Qd1 c2 Qe1 Nc6 Na3 b1Q Qf2 b2 Nc4 Nce7 Qe2 Nf6 Ne5 Ne8 Nh3 g1N Nf2 g6 Rg3 Bh3 d7 Bg7 Rf3 Rf8 h8B Rb8 Qe1 Rb3 Bb5 e2 Rg3 Rf3 Nfd3 Ke4 Nb4 Qa2 f5 b1N Bc6 Qc4 Bb2 Na3 Qb1 Qd4 Qa2 c1N Rb1 Nd3 Ba1 Nf4 Rf1 Qf2 Rg4 Qh2 Rf2 Qg3 Rg2 Qf2 Rh4 Qd4 Rh7 Qf2 Ng4 Be5 Rg3 Bd6 Bhe5 Bb8 Bc7 Qe1 Kh6 g5 Ne5 g4 Kg5 Qf2 Ng6 Qe1 Qb3 Qf2 Nh8 Qh2 Na2 Qf2 Qa4+ Kd3 Qa5 Kc2 Nb4+ Kd1 Qa4+ Ke1 Rg2 Nd6 Kf6 Qg3 Qc2 Qf2 Qa2 Ne8+ Ke5 Qh4 Rg7 Nh5 Ke6 Nhf6 Rg3 Nh7 Rg6 Bg2 Rf6 Nh3 Rg6 Rg8 f8B Nf4+ Kf7 Bh3 Rg2 Nc8 Bc5 Ne7 B5d6 Ba7 Rg3 Bg1 Rg7 Bh2 Rg6 Rf1 Re3 g3 Ree6 Rf3 Ref6 Nh5 Ke6 Rf8 Rf7 Nf4+ Ke5 Ng2 Ke6 Ng8 Bde5 Ngf6 Ke7 Nf4 Kd8 Ng8+ Rg5 Ne7 Bed6 Nb1 Rgg7 Na3 Rg6
8/2r1b1NP/3r2nr/1pqP4/1R1PP2n/K1pr1Q1b/2pNR3/1RBBbR1k b - - 0 1 illegal: No possible last move
Q3K3/nqk1b1Pn/b1N5/RrP1p1p1/NR2P1n1/3BpBR1/1P2b1r1/2R1n3 b - - 0 1 illegal: No proof kernel
r3rNN1/3PB1K1/R1Qn1B2/2N2P2/1n1N1Pnp/2b3bp/3bp2P/1bkq3R b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 dxc4 e4 f5 exf5 g6 Be2 Nd7 Bg4 Nb8 Bh5 gxh5 Ke2 Kf7 Kf3 Kf6 Kf4 c5 g4 a5 b4 e5+ Ke4 Kg5 b6 h4 b5 h5 f3 a4 b7 a3 b6 h3 Qb3 a2 Ba3 h4 d4 c3 d5 c2 d6 c1B Qf7 c4 Qh7 c3 Bc5 c2 Ne2 Na6 b8N Nb4 b7 Bd2 Qd7 c1N Qa4 Ne7 Nbc3 Ncd3 Nd7 Bg7 b8B Re8 Bc7 Bb7+ Qc6 Nc8 Nd4 Bh8 Rag1 a1B Na4 Bac3 Nf8 Ba6 Rd1 Bc4 Rdf1 Ba2 Ra1 Bb1 B7b6 Qd7 Bd8+ Bf6 Ba7 Be7 Nc5 Bf6 Ra6 Be7 Qd5 Qa4 d7 Qd1 Bc7 Bd6 Qc6 Na2 Kd5 Kf4 g5 Ke3 g6 e4 g7 Bg3 g8N Nf2 f4 Ng4 Bd8 Nd6 Be7 Nb4+ Ke6 Qf3 Bb6 Qd1 Nb5 Ke2 Bd8 e3 Nd4+ Kf2 Ra3 e2 Ra7 Ke3 Ra6 Nf2 Kf6 Ng4+ Kg6 Nf6 Nce6 Ng4 Kg7 Kd3 Bf6 Ke3 Bde7 Kd3 Nb5 Kc2 Nbd4+ Kc1 Nc5
1QBr2nN/b1pP4/1r1r2PR/NP2Rprq/2n3kn/4N3/p1K2P2/2N2B1b b - - 0 1 legal: proof: d4 b5 c4 e5 h4 d5 a4 g5 axb5 gxh4 Be3 Ba6 cxd5 Qd7 d6 Bc8 d5 Qd8 Bd4 exd4 Kd2 Kd7 e4 a5 b4 h5 g4 h3 g5 a4 g6 a3 e5 h4 b6 h2 b5 d3 b7 a2 Nc3 h3 Rb1 Qh4 Qb3 Ra6 Rb2 Qh5 Nd1 Rb6 Ne3 Nc6 Qc3 Na5 Ne2 Nc4+ Kc1 d2+ Kc2 d1R Nc1 f6 Qa5 Rd4 Qa7 Rg4 Qb8 Rg5 Rg1 h1R e6+ Ke8 e7 Kd7 Rg4 h2 Rh4 Rhg1 Rb4 h1N Rb2 Ng3 e8B+ Kd8 d7 Ke7 d8N Nf5 Rh3 Nh4 Nf7 f5 d6+ Kf6 Bd7 R1g4 Be6 Rd4 Rb1 Bd7 Rb3 Bc6 Bc8 Be7 d7 Bh1 Rd3 Rdd6 Rd5 Rdc6 Re5 Bc5 Rh2 Rd6 Rh3 Ne7 Rh2 Rd8 Nh8 Bd4 Qa8 Bc5 b8N Ng8 Nc6 Bd4 Na5 Bc5 Re7 Bd4 Qb8 Bc5 Rh7 Ke5 Rh6 Kf4 Rh3 Bd4 Ng2+ Kg4 Re3 Rbc6 Re6 Ba7 Re5 Rb6 Ne3+
1R3K2/pq3PQ1/4q2P/R1p1R2b/3Np1b1/B1P1P2N/nk2qn1R/r2Bqr2 b - - 0 1 legal: proof: e4 h5 a4 b5 axb5 f5 Ra4 fxe4 Ra6 Nf6 Ra1 Ng8 g4 hxg4 Bc4 e3 Bd3 e6 Bf1 Bc5 Ke2 Bb6 Kd3 e2 Kc3 Be3 dxe3 Ba6 Kd2 Bc8 Kd3 Ke7 Ke4 e1Q Ke5 g5 h4 d5 f4 c5 b4 g3 f5 d4 c3 g4 b6 g2 b7 g3 h5 d3 b5 d2 b6 Qd5+ Kf4 Kd6 Kg5 e5 Kg6 e4 Kg7 Na6 b8R Qb7+ Kf8 Kd5 f6 Qe2 Ra5 Kc4 Rh3 Bg4 Qa4+ Nb4 Qc6 Kb3 Qd7 d1B Na3 Na2 Re8 Rd8 Nb5 Nh6+ Kg7 Ra8 Re5 Raf8 Rh2 Kc2 Nh3 g1Q Bb2 g2 Ba3 Kb1 Bb4 Kb2 Nd4 Qgf2 Qc7 g1Q Bg2 Qf5 Bf3 Qe1 Qd7 Qe6 Qe7 Qc7 b7 Qcc6 b8R Qb7 Qd7 Rhg8+ Kh7 Rg5 Qg7 Rf5 Kg6 Rd8 Kh7 Rd6 f7 Ra6 Bh1 Rf1 Bf3 Ng8 h6 Nf6+ Kh8 Bh5 Nb3 Ng4 Kg8 Nf2 Kf8 Qc2 Nd4 Qd3 Bg2 Bdg4 Bf3 Qdd2 Bd1 Qde2 Rb5 Ra3 Ra5 Nc1 Rb5 Ra1 Ra5 Na2 Ba3+
1q3BK1/Pb6/1p1p1R2/PqQ1qkBn/4RN2/1Pp2Nnb/2nP1N1N/3rb3 b - - 1 2 illegal: No proof kernel
6Qn/n2K2pB/5RPR/nB1BPp2/1kPp1b1N/2n2P2/2r1qN2/2bBn2b b - - 1 2 illegal: No proof kernel
3RB3/2q3p1/1Rn1bPP1/3B1Pkp/1bn4n/nK1Bqp2/Q1P2B2/3rq1NN b - - 0 1 illegal: No proof kernel
Q4r1k/p1p1qP1R/R3NBB1/2Pb2n1/2N1P1q1/1q2n1P1/1Bpq4/b2n1BK1 b - - 0 1 illegal: No proof kernel
Bb1b1Bb1/2q2qp1/3R1p1R/N6N/4PNpr/3Pnr1b/1K1P1P2/N2kqQ2 b - - 0 1 illegal: No proof kernel
4N1nr/1B1QpK2/1P1p4/2B5/1q3Pn1/2kNn1bq/1n1P2Pp/B2rqBRR b - - 0 1 illegal: Other
R1K5/1pP1Nn2/k2q3N/p3N3/N1br1r1q/1nB3Pp/QP3rPq/3B1rR1 b - - 0 1 illegal: No proof kernel
2R1N2n/r2p1nNb/p6N/b1Q1B1Pp/K1BPN2R/1Pb3n1/3b1P2/1k1n3q b - - 0 1 legal: proof: c4 f5 e4 fxe4 h4 b5 cxb5 a6 Qe2 Ra7 Qd1 Rb7 h5 Rb6 h6 Rg6 b3 Rg3 b4 Rb3 axb3 gxh6 Qf3 h5 Qd1 h4 g4 Kf7 d4 Kf6 Kd2 c5 Kc3 h5 b6 e5 b7 h3 g5+ Kf5 b5 c4 b6 h2 Nd2 e3 Rb1 e2 Ndf3 Ke4 Kb2 e1N Qd2 c3+ Ka2 c2 Be2 Ng2 Ra1 Bb4 Qc3 Nc6 b8N Nge7 b7 Ne3 Qc4 Ba5 Ka3 Nd1 Ka4 Ng6 Bf4 c1B Qc5 Bcd2 Nh3 Qf8 Bf1 Nd8 Rc1 Nf7 Nc6 Qe7 b8N Bb7 Be2 Rf8 Rc4 Ngh8 Na7 Bac3 Nbc6 Ra8 Nc8 Ra7 Bg3 Qf6 Nd8 Qc6+ Ka3 Ba8 Nf4 Ba5 Nfe6 Bb7 Re1 h1N Ng7 Bdc3 Bh2 Ng3 Rh1 Bd2 Rc2 Bdc3 Bb5 Bd2 Rc4 Kd3 Ka4 e4 Nd6 e3 Nde8 Bdc3 Nd2 Kc2 Ne4 e2 Rb4 Qd5 Bc4 e1B Rb5 Ba8 Rb8 Bed2 Rc8 Bb7 Qb5 Kb1 Qc5 Ne2 Bc7 Ng3 Be5 Ba8 Rh4 Qb7 N4d6 Qh1 Ne4 Bd5 Nde6 Bb7 Nf5 Bd5 Nh6 Ba8 N4f6 Be4 N6g7 Bh7 Ne4
B1rnn3/kbrPn1PK/3p2N1/3r3R/p1N2Ppb/3r2PN/1nR5/2B2QN1 b - - 0 1 illegal: No proof kernel
1Bn1n2N/1PR5/B3K2P/pr3pPr/Nkp5/2Qb2b1/P1r3R1/Bb2B1br b - - 0 1 illegal: No possible last move, all moves rejected
n1n1r2B/1q3r1k/N2b3p/2Q2PP1/N3p2R/p5N1/Pp1NP1bb/2nKB1R1 b - - 0 1 legal: proof: g4 c5 c4 g5 h4 d5 cxd5 c4 Bh3 c3 bxc3 f6 c4 gxh4 c5 f5 g5 Kd7 Bg4 fxg4 Rh3 Ke8 Rh2 Nf6 Rh1 Ng8 d4 Kf7 f4 Kg7 f5 a5 d6 e5 d5 b5 d7 a4 c6 h3 d6 a3 c7 h2 Qa4 h6 Kd2 g3 Qf4 g2 Qh4 b4 Bb2 b3 Qe4 Ne7 Qc2 Bb7 c8N Qb6 d8N Na6 d7 Rh7 Nf3 g1B Nd6 Nc7 Qc5 Nc8 Ne4 Bd6 Ng3 Be4 Ke1 Qb7 Nfd2 Bg2 Nc3 e4 Nc6 Rb8 d8B Na8 Nb4 Kg8 Qb5 Rf7 Na4 Kh7 Bh8 b2 Be7 Be3 Rb1 Bef4 Na6 Bfe5 Rg1 h1N Qc5 Nf2 Bf8 Nd3+ Kd1 Bf4 Bfg7 Nc1 Bc3 Be3 Rh1 Bg1 Rh4 Bh2 Ndf1 Ncb6 Be1 Re8 Nd2 Nd3 Rc1 Nc8 Rc3 Nc1 Rf3 Rg8 Rf1 Re8 Rg1
R1kBK2b/p5NP/3rP2p/3q2Qn/1Pp1N1NP/bbrnN1r1/1R2p1B1/8 b - - 0 1 illegal: No possible last move
7K/qN1R1B1p/r4QRq/B2BP1P1/p2p1q2/P2Bn1N1/1p2r1P1/1bkn2b1 b - - 0 1 legal: proof: f4 e5 b4 g5 fxg5 c5 bxc5 Qc7 d4 exd4 Nc3 Qe5 Nb1 Qxh2 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kf3 Ke5 e4 b5 c4 a5 a3 d5 c6 b4 c5 d3 c7 Kd4 c6 d2 Bc4 f4 Bd3 a4 Bc4 b3 Ra2 Qh6 Nc3 Na6 Bd3 Nb4 Qf1 Bf5 c8B Bc5 c7 Ne7 Be6 Ra6 c8B Re8 Bb7 Nc2 Bf7 Ne3 Bb2 d1Q+ Nge2+ Ke5 Qf2 Qg1 Ng3 Nd1 Nb5+ Bd4 Bc3 b2 Nd6 Bg6 Kg4 f3 Be1 Nf5 Ra1 Bb6 Qf1 Kd4 Ba5 Ke3 Ba8 f2 Nb7 Bd4 Rc1 Re7 Rc7 Bc5 Rd7 Ree6 Bb6 Kd2 Ba5+ Kc1 Kf4 Ne3 e5 Rec6 Rh2 Ba7 Rh4 Rc2 Rh1 Re2 Rh3 Qf8 Rh6 Be4 Rg6 Qh6 Bc4 Bb1 Bd3 Ng4 Kf5 Bd4 Qe1 f1Q+ Qf2 Bb6 Ke6 Nge3 Qf6 Qf4 Ke7 Qhh4 Kf8 Qh6+ Kg8 Nf1 Nd6 Qc5 Nh1 Qc7 Bb7 Bg1 Kh8 d4 Ng3 Nfe3 Bbd5 Qa7 Nb7
1q1N1Qn1/p7/kP1Bppq1/r1PB2r1/1RP1PBb1/7b/nK1n2Bp/N6R b - - 0 1 illegal: No proof kernel
1b1B3r/1R3n2/RBp5/n1Pk1r1b/2bB1p1p/2K1bQBp/3PPP2/3N1q1N b - - 0 1 illegal: No proof kernel
7n/1pbpK3/pn2N3/RP1kp3/3q1rPB/P2P1brn/1Q3BN1/2Nn1R1N b - - 0 1 legal: proof: h4 f5 e4 g5 exf5 Bh6 Na3 Kf7 Nc4 Kf8 Nb6 Ke8 Nxc8 Bf8 b4 gxh4 Bb5 c5 Ba4 c4 Bb3 cxb3 Ke2 Kf7 Kf3 e5 Ke4 h5 Kd5 a6 c4 b2 g4 b1B f4 h3 d3 h4 c5 h2 b5 h3 f6 Rh4 f5 Be7 c6 Qe8 c7 Nc6 Qc2 Na7 Bg5 Bd8 Kd6 Qf8+ Ne7 Nh6 Qb2 Bc2 c8N Bd1 Nb6 Bf3 Nd5 Rb8 Ne3 Nc8+ Kc5 Bc7 Ng2 Rh5 Bh4 Nb6 Ne2 Ra8 Rhc1 h1N Rf1 Nf2 Nc1 Nd1 Bf2 h2 Bh4 Bd8 Kd6 h1N Bf2 Rh3 Bh4 Qg8 Bf2 Kf8 f7 Kg7 f8N Kf7 f6 Rg3 Ne6 Bc7+ Kc5 Rf8 Nf5 Rh3 Bh4 Nhf2 Ng3 Qh7 Nh1 Rg3 Ne3 Qe4 Ng2 Kg6 f7 Nh3 Bg5 Qa4 Be3 Kf6 Bf2 Rc8 f8B Nf7 Bh6 Nh8 Bd2 Rf8 Bg5+ Kg6 Bh4 Rf4 Ne2 Bd8 Kd6 Bc7+ Ke7 Qe4 Rc1 Qd4 a3 Bc6 Rc4 Bf3 Ng5 Kg7 Nc1 Kg6 Ra4 Kg7 Ke8 Kg6 Ra5 Kf6 Nh7+ Ke6 Ng5+ Kd6 Ne6 Kd5 Ke7
3RK1N1/3n2kn/2nr2p1/1pr4r/bR1R2B1/1Bp1RN2/1PP1pPP1/qQ3r2 b - - 2 3 legal: proof: d4 e5 dxe5 b5 a4 Bc5 a5 Bb6 axb6 f6 e4 Nh6 e6 Ng4 e5 Nxh2 e7 Kf7 Be3 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Kd2 Kd6 Kd3 a5 e8B Ke7 Ke4 Kf8 Kd5 c5 Kd6 h5 b7 h4 Qe1 g6 e7+ Kg7 Bd3 c4 Nh3 a4 Ng1 c3 Na3 e4 Qd2 e3 Ra2 e2 Nh3 Ng4 Raa1 Nc6 b8R Rh5 Rhf1 Qa5 Qd1 Nf6 Qd2 Nh7 Ng5 h3 Bf5 h2 Qe1 h1R Nb1 a3 Nf7 a2 Be6 Rc5 Bh3 Ra6 Bg4 Rhh5 Nh6 Qa4 Kc7 d5 Nd2 d4 Ng8 d3 Qb1 Be6 Rd8 Bb3 Nf3 d2 Bf7 d1R e8R Rb6 Rh1 Rf1 Kd7 Qa8 Rh4 Ba4 Re3 Qa5 Qc1 Qa8 Rb1 a1N Ke8 Nb3 Ra1 Qa6 Qb1 Rc4 Rd1 Na7 Bge6 Nc5 Qa2 Bb3 Rd8 Nd7 Qb1 Rd6 Rd4 Rcc5 Bg4 Nc6 Raa4 Qa7 Rab4 Qa1 Bfe6 Ba4 Bb3
BrN1n1kn/1nR4Q/qNP1r3/q1ppp3/3P1b2/1BP1pP1n/R6N/1N1K4 b - - 1 2 legal: proof: e4 f5 b4 fxe4 g4 h5 gxh5 a5 b5 c5 Ba3 b6 Bb4 axb4 Qg4 Bb7 Qd1 Bc6 bxc6 Ra3 Nf3 Ra4 Ng1 Ra8 d4 Kf7 h4 d5 a4 g5 f3 e5 c3 b3 h6 b2 a5 g4 h5 e3 h7 g3 h6 b5 a6 b4 a7 g2 Ba6 b3 Bb5 Nd7 Ra6 Ngf6 Bc4 Rb8 a8B Qa5 Ne2 g1N Ng3 Ne8 Qd3 Nh3 Nf1 Be7 Rh2 Bg5 Ra7 Bf4 Kd1 Rf8 h8N+ Kg8 Rd2 Rf6 Rc7 Nf8 Nf7 Ng6 Nd6 Re6 Nc8 Nh8 Nh2 Qa6 Nb6 Qa5 Na3 b1N Ra2 b2 Bb3 Nd2 Nb1 Ne4 Qc2 N4d6 h7+ Kf8 Qg6 Nb7 Qd3 Nf7 h8N Kg8 Ng6 Nh8 Nh4 Qa6 Nf5 Qa5 Nd6 Qa6 Ndc8 Qa5 Nd2 b1Q+ Ke2 Qb2 Kd1 Qba3 Nb1 Qa6 Qe4 Q3a5 Qh7+
Kb1N4/p1BP4/3Q4/N1pBbk1p/Pn1B2b1/1BPR1qnP/4p1R1/r1qb4 b - - 2 3 legal: proof: f4 b5 g4 g5 a4 d5 e4 dxe4 Qf3 b4 Qa3 bxa3 Kf2 f5 Ke1 Na6 fxg5 f4 Ke2 Rb8 Kf2 Rb5 Ke1 Rf5 gxf5 Bh6 Nf3 Bg7 Ng1 Bf8 Kf2 Kd7 d4 h5 b4 c5 d5 e5 c3 a2 f6 f3 Ke3 f2 b5 Qe7 f7 Qf6 d6 Ke6 h3 Ne7 g6 Bg7 f8Q Rg8 d7 Rh8 b6 Rh7 b7 Qf7 b8B Nb4 Bc4+ Kf5 Bd5 f1B Rh2 Bca6 Nf3 Bfe2 Na3 Bd1 Ng5 Bae2 Bc7 Bg4 Ne6 Rh8 Re2 Rg8 Rg2 Bh8 Rb1 a1Q g7 Qb2 Bd2 Qc1 Nd8 Qf6 Nc4 Qf7 Kf2 e3+ Kg3 e4 Na5 e2 Be3 Qf6 Bd4 e3 Rb2 Qf7 Rd2 Qf6 Rd3 e1B+ Kh2 Bd2 Kg3 e2 Kf2 Bf4 Bb3 Ned5 Qd6 Ne3 Bd5 Rf8 g8B Nf1 Bb3 Bh2 Bgf7 Ng3 Bfd5 Qc2 Ke3 Qf7 Qa6 Be5 Qd6 Qc1+ Rd2 Na6 Kd3 Rg8 Kc4 Nb4 Kb5 Rg6 Rd3 Rg5 Bb7 Qd5 Bc6 Qf3 Bcd5 Nh1 Qe7 Qa3 Nc4 Bef4 Bb6 Bc2 Re3 Bb8 Na5 Bhe5 Rd3 Rg6 Bc7 Rb6+ Kc4 Bd1 Bc2 Na6 Qd6 Rb1 Bb3 Ng3 Kb5 Qc1 Kc6 Nb4+ Kb7 Ra1 Ka8
q4BrN/NpPq1Brp/2Bn1n2/qpp5/2P1r3/1PR2PR1/1k4B1/2QKn3 b - - 0 1 illegal: No proof kernel
n7/B1p1nprq/k1N4p/1RK3PP/1rPB4/Q2qP2N/r2pB3/1nR1qB2 b - - 0 1 legal: proof: f4 e5 g4 a5 b4 axb4 d4 exd4 g5 d6 Bb2 h6 Ba3 Bf5 Bc1 Bh7 g6 Be7 gxh7 g5 Qd3 g4 Qd1 Bg5 fxg5 Qf6 Be3 Qe7 Bc1 Qd8 Kd2 Kd7 Kd3 Kc6 Kc4 Kb6 a4 d3 h4 g3 a5+ Ka6 h5 b5+ Kd4 g2 c4 d2 e3 b3 Bd3 b2 Ne2 g1R Nbc3 b1N Qa4 d1Q Bb2 b4 Nf4 b3 Na2 d5 Nh3 Ne7 Kc5 d4 Be2 d3 Bd4 b2 Qa3 Rg8 h8B d2 Bhg7 Qe1 Nb4+ Kb7 Bh8 Rg7 Nc6 Ka6 Ra2 Qg8 Ra1 Qh7 Bf1 Nc3 Rc1 b1Q Be2 Qbe4 Rb1 Qd3 Rb5 Nb1 Bf1 Qg3 Be2 Rc1 Re1 Rc3 Rc1 Rb3 Bf1 Rb4 Be2 Nc8 Bf1 Nb6 Be2 Kb7 Bf1 Qe1 a6+ Kc8 a7 Kb7 Ne5 Nc6 Be2 Ne7 Nc6 Rb8 Bf1 Ra4 a8B+ Ka6 Na5 Rf8 Bf3 Rb8 B3e2 Na8 Nc6 Ra5 Kb4 Rb7 Ba7 Rb8 Kc5 Ra4 Qc3 Ra2 Qa1 Rgg8 Bd4 Rg7 Rb2 Rb4 Rb3 Rba4 Rb5 Rb4 Qb2 Nb6 Qb3 Na8 Qa3+
1R2BRqk/5qqn/K3B3/p2bp3/Nbp2B1n/1QP3n1/1pNPP1nP/4B3 b - - 0 1 illegal: No proof kernel
K1RQ4/pPNBpR2/P1Pk3b/r1p5/2R4q/Nb2P2b/pRb4B/1r1qq3 b - - 0 1 illegal: No proof kernel
1N3r1n/1Qkp3N/bp3p1q/B2KpN2/b1P1B3/nn2Rp2/1PNP2P1/3R1b2 b - - 0 2 illegal: No proof kernel forced: bxDB
qBR3n1/NQ2b1pb/1q1R2Pp/p1n1p1q1/5p2/5BP1/PNR1P3/3KR1kr b - - 1 3 illegal: No possible last move
3B4/1p2K3/2pPbR2/B2rPb1p/NP1R4/Bp2qB2/N1Pp1nr1/b1Qb3k b - - 0 2 illegal: No proof kernel
1b1r2k1/R1p1n1qR/KQ1RNp2/Br3P1p/2qR1pPP/2n5/2P2p1p/4BN2 b - - 2 3 illegal: Other
b2B2qN/2pppN2/N3P2q/1k1P3Q/2pr2pr/B1N2rP1/2KpP3/2nR1R2 b - - 0 3 illegal: Other
2r1B1BN/1pppkp2/2rNP2p/K4n1P/N4Ppb/QqPR4/pp6/N4R2 b - - 0 3 illegal: Other
3R2k1/1Bp2R2/4q1b1/3PbpNp/pQ3PBp/K1pNpR1P/P1R3p1/3r1r2 b - - 0 3 illegal: Other
2kn1QN1/2B2rpp/RRr1qn2/3Pq1bb/B3b2R/2nqP1PP/N1R4K/1r6 b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 b5 axb5 e5 Qc2 exf4 Qb3 Nh6 Qd1 Ng8 Kf2 Kd7 b4 f5 d4 c5 h3 a5 b6 c3 b5 c4 g3 c2 Kg2 f3+ Kh2 a4 e3 c3 b7 f2 b6 f4 d5 a3 Qe2 a2 Ba3 c1R Bb4 f3 Qd3 c2 Bd6 Ra7 Qe4 Qe7 Nd2 Nf6 Qf5+ Qe6 Qd3 Rb1 Ne4 c1N Be7 Ne2 Bd8 Nc3 Bc7 Be7 Ne2 Nc6 b8R Nd8 b7 Rf8 Qd1 Rf7 Nc1 Ra6 Bb5+ Rc6 Ba4 f1B Qe1 Bc4 Qf1 f2 Ra8 Bb5 b8R Be2 Rb6 Bh5 Rg1 Ba6 Rg2 Bd3 Ra5 Kc8 Raa6 Ng8 Nf6 Be4 Ne8 Bg5 Nf6 Rb5 Rb1 a1Q Na2 Rb2 Rd1 Rb1 Rd4 Qb2 Qd1 f1Q Qf3 Qd3 Rc2 Bf5 Rh4 Be4 Ng4 Nf6 Nh6 Nd1 Ng8 Qbe5 Qf2 Nc3 Qf4 Qed4 Qd6 Qde5 Qf8
1q1q1rbN/P1QRRpr1/1bbb1kp1/4BB2/5PR1/3R1NPn/KP1r2n1/6n1 b - - 0 1 illegal: No possible last move, all moves rejected
K1bB1q1r/B3p2Q/1r1P2pB/3Bb1NR/1r3qn1/kqP3P1/3rP3/1R1N2qn b - - 0 1 illegal: No proof kernel
N1R1Nnbb/3BPp2/5R2/q1pP1P1p/1N6/1k1rN2P/1Bq1nbK1/rQ3n1r b - - 0 1 illegal: No proof kernel
B2NB3/r3rP2/pK6/N1R1q2b/3n1nR1/2n1pPpB/PB2P1rQ/3r1kbb b - - 0 1 illegal: No proof kernel
4Nn1n/1rpq4/KBPbp3/pB1rP2P/PqB1b1Q1/2k2r2/2r2Nr1/2R2B1R b - - 1 3 illegal: No proof kernel
1B3R1R/3b4/nrkr1pBq/n4PPR/4pq1b/KNNp1R1n/4P1QP/n3n3 b - - 0 1 illegal: No proof kernel
4n1KN/2q3Rn/qPN1p3/qPNqrb1q/pQp1P2N/4R2r/2PB2B1/b2k4 b - - 0 1 illegal: No proof kernel
1rNR1K1Q/n7/2p5/1PPpbNq1/1n1P3k/p1BRqB2/2P2r2/1qNn1Nqb b - - 0 1 illegal: Other
K3k1R1/b1rR1Np1/n1p5/1B2qnP1/R2N2R1/B1n3Pp/1Qb1P2P/bn4rq b - - 0 1 illegal: No proof kernel
Rb4b1/3P2r1/2bN1Nn1/K1p2p2/2pRq3/1BP2r2/kbn1qPQP/3NNnB1 b - - 0 1 illegal: Other
1bB1BBN1/qR3pKb/1p1rRP2/5N1p/2Q1b2P/bP1q1n2/3rPk1n/r2B4 b - - 1 3 illegal: No proof kernel
3BQR2/2prPKp1/1q2rpP1/k2n1nR1/1BPR2N1/4bP1b/3b1bq1/R1N1r3 b - - 2 3 legal: proof: d4 e5 g4 exd4 a4 h5 g5 b5 axb5 Be7 Bh3 Bf8 Bg4 hxg4 Kd2 d5 Kd3 Kd7 b4 a5 h4 f6 e4 g3 c4 g2 h5 a4 h6 a3 e5 a2 e6+ Kd6 f3 Ne7 b6 Kc6 b5+ Kb7 g6 Rh7 Nh3 g1B Qa4 Na6 Ba3 Bf2 Rg1 Nf5 Rg5 Bc5 Nd2 Qd6 Nb3 Rb8 Nc1 Nb4+ Ke2 Rh8 h7 Rd8 h8R Rd7 Rh4 d3+ Kd2 Qc6 Kc3 d2 Rd4 Be3 Nf2 d1Q Ng4 Qf1 Nb3 Qg2 Nc1 Nc2 Kd3 Ra8 Kc3 Ra6 Kd3 Nb4+ Kc3 Kb8 b7 Ka7 b8B+ Kb7 Ba7 Qb6 Rd2 Bf2 Rd1 Bce3 Rd4 Qa5 Bc5 Qb6 Be7 Ka7 Rd2 Kb7 Bd8 d4+ Kb3 d3 Kc3 Qa5 Rd1 d2 b6 Nd5+ Kd3 Qb5 Ke4 Kc6 b7 Kb6 Bde7 Qc6 b8R+ Qb7 Qc6+ Ka5 Bd8 Qb6 Ra8 Re7 Qe8 Rd7 Rh1 d1R Rh8 Nh4 Rf8 Nf5 e7 Re1 Rb8 Qd6 Rb3 Qc5 Rd3 Qb6 Rb1 a1B Rd4 Bc3 Ra1 Bcd2 Rh5 Nh6 Rg5 Nf7 Kf5 Nd6+ Ke6 Nf5+ Kf7 Qa7 Ne2 Re6 Nc1 Qc5 Nh6 Qb6 Ng4 Ng3 Rh8 Rc6 Re4 Rdd6 Ne5 Bh3 Rf8 Nf5 Rd4 Rd7 Ng4 Re6 Bb4+
qq1b2Bk/1r2rp1B/p1PQpB2/3N1b2/P1P1n1RK/1N5R/4P1b1/4Bnnb b - - 0 1 illegal: No proof kernel
1RB3b1/Qp3kNb/2b2q2/3p1n1P/2R1P1rr/1PBKb2n/R1NPp2R/5nq1 b - - 0 1 illegal: No proof kernel
b6N/Rp2B2n/3r1PK1/2R5/1bk1pqP1/Q5n1/pPrBP2q/bnNB1n1B b - - 0 1 illegal: Other
2K2nN1/1P1Nq3/pp2q1pN/6r1/Bb5k/1n2nr2/PPPRbQ2/rn2B1NR b - - 0 1 illegal: Other
kN5r/b1p3pB/1rb2pNr/1b6/2PqNP1B/qPRn1R1q/2K2QP1/6qN b - - 0 1 illegal: No proof kernel
1K1b1rB1/1np2rqR/2P3Pr/4Q2p/2p5/RRPpnk1N/bb1P1nNR/2B5 b - - 0 2 illegal: No proof kernel
RK3b2/PR2pkp1/4P2b/Nn1prnP1/3N2q1/1Q2Bp1n/1rNPN3/1brB4 b - - 0 3 illegal: No possible last move
Q2Bq2r/n1r1k2b/N4pnq/3p1p2/5p1R/bKnP1PPR/BN1P4/b5NN b - - 0 1 illegal: No possible last move, all moves rejected
bB2BNb1/b1pnR1p1/2Pn3R/3p2PP/1q2P1KN/N5n1/1pQq2r1/Nr4k1 b - - 0 1 illegal: No proof kernel
NN1Q1Brn/p4npp/6kB/K1bbb1PP/2Np1n1P/1r1R4/3P1q1q/N4R2 b - - 2 3 illegal: Other
2qBNK2/Rp5R/5R2/4pPr1/1PRQP1k1/qb3nr1/NP1pprnn/b2B4 b - - 0 1 illegal: No proof kernel
NK3n2/2pPp3/1bP1n2q/k1rr1NP1/4Rp1R/B3bp2/B1qQPNb1/5Nq1 b - - 0 1 illegal: No proof kernel
3qQ2R/1Kb1n2p/rp2p1Pk/1bP2np1/r3Nn1P/3NB1Pn/1B3B2/3R1Bb1 b - - 0 1 illegal: No proof kernel
N6q/1bN1R3/nK1p1pp1/1pNB1P1P/1P2qBP1/1QrbRk2/5br1/1N3b1n b - - 2 3 illegal: No proof kernel
k1r2N2/2RNPrqp/1p1BQpbb/nP2P1pq/3b1P1n/K4B2/R2B1bB1/8 b - - 0 1 illegal: No proof kernel
2N2n1r/p1q2k2/QR1p2p1/2R1NbP1/1P1r2RB/PnnP2Bq/p1K1n3/b1R5 b - - 0 3 illegal: No proof kernel
RbRN1k2/3np1Nn/1B2p1qN/1P1pr3/bp1r4/1P3p2/1P2PnQ1/2bBKN2 b - - 0 1 illegal: Other
R1Q1BNq1/r1pB2n1/Pp4p1/2P2B2/1B1b1bPn/Kp3rqp/1P2k1qN/3R4 b - - 0 3 illegal: No proof kernel
1k5r/1q1p2Kp/2B1bpb1/Bp1r4/R1PPpn2/5N2/1P1qnNRP/1RQ1R1r1 b - - 1 3 illegal: No proof kernel
7r/1N1B4/pp1pp2q/1PrP4/1B2np1k/PbrBP1R1/1KQ1B1R1/3N1rnr b - - 1 4 legal: proof: f4 g5 b4 gxf4 h4 c5 g4 Nc6 g5 Nd4 b5 Nf5 c3 Bh6 Qb3 Nd4 Qb4 cxb4 g6 Bg5 hxg5 Nc6 Bh3 Nb8 Bg2 Qc7 Bf1 Qd8 Kd1 h5 Kc2 f5 d4 f3 g7 Kf7 a3 Kg6 c4 a6 e3 b6 c5 h4 c6 Kh5 g6 d6 c7 h3 Bd2 f4 Nc3 h2 Nd1 b3+ Kb2 f2 Nf3 Nf6 g8Q Qf8 g7 Nc6 Bb4 Ne4 Rg1 h1R Rg2 Ne5 Qc4 Be6 g8B Rc8 Qc2 Qh6 Be2 f1R Ng5+ Kh4 Nf7 Nf3 Nd8 Ng1 Nb7 Bc4 Ra2 e6 Rg3 Bd5 Bh7 Bc4 Kb1 b2 d5 Bb3 Bg6 Rcd8 c8B Rd7 Qc1 Rc7 Bd7 Rc5 Bf5 Bc4 Kc2 b1R Bg6 Ra1 Kb2 Bb3 Qc2 Rc1 Bh7 Nf2 Bhd3 Ne4 Qb1 R1c4 Qc2 Rc3 Bf3 Rhc8 Qg2 Bc4 Ka1 Ra8 Rc2 Ba2 Kb2 Bb3 Qd2 Nf2 Qc1 Ne4 Rcg2 Rf8 Bfe2 Rh8 Qc2
nQ5q/1K1BB1R1/2p1n1r1/1prnp3/2ppb3/pRPP2NB/PP2k3/B1bN4 b - - 4 6 illegal: Other
q6k/1Q2PNR1/r1B2BbP/8/PnBr1r2/1QQrn3/1KPp3n/1N6 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 c5 dxc5 e5 fxe5 Qf6 Bg5 Qb6 Bc1 Qd8 gxh5 Bd6 Bb2 Bc7 Ba3 Bb6 Bc1 Ba7 a4 b6 cxb6 Rh6 bxa7 Rh8 Ra3 bxa3 Kd2 Kf8 Kc3 d5 h4 g5 e4 Kg7 e6 f5 e7 a2 e8Q a1R e5 d4+ Kb3 d3 e6 d2 e7 g4 Qe1 g3 Bh3 g2 Kb2 f4 Qf2 f3 Be6 Na6 Qc6 Ra3 Qfb6 f2 Qcb7 f1N Nf3 g1R Ng5 Ne3 Bc4 Rd3 Qb3 Bf5 Nf7 Rg4 Rg1 Nf6 h6+ Kg8 h5 Bg6 Rg3 Rf4 h7+ Kg7 Rg1 Nfg4 Rg2 Qe8 Rg3 Rad8 a8B Nb4 Rg1 Nh2 Rg2 R8d4 h6+ Kf6 Rg3 Qb8 Rg1 Rhd8 Rg4 R8d6 h8Q+ Kf5 Rg1 Ra6 Qg7 Rd5 Qgc3 R5d4 Qc7 Kf6 Bc6 Qa8 Qb7 Bh5 Re1 Kg6 Rg1+ Kh7 Ka3 Ra7 Bb2 Bg6 Ba1 Ra6 Kb2 Kg8 Ka3 Rd6 Qf6 Kh7 Bd4 Bf5 Kb2 Rd8 Rg8 Bg6 Qe5 Na2 Qa5 Rd7 Bf6 R7d4 Qac3 Nb4 Ne5 Rd5 Rg7+ Kh8 Na3 Rd8 Nb1 R8d4 Nf7+
7r/6Rr/1nbK1P2/NPR1n1PQ/3b1Q2/Q2B2rP/2q3Bk/rn2B1r1 b - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 Nc6 b4 Nb8 a4 b5 axb5 axb4 g4 g5 fxg6 h5 f4 Ra7 f5 Ra8 g5 Kd7 Na3 Bh6 Nc4 Ke8 Ne3 Bf8 Ng4 hxg4 Kf2 Kd7 Ke3 Kd6 Kf4 e5+ Ke4 c5 d4 c4 g7 c3 h3 g3 f6 c2 Ra7 g2 Ra3 b3 Qg4 b2 Qh5 b1N Ne2 g1R Bd2 c1R Be1 Bb7 Bg2 Rc7 Nc1 Qc8 Ra7 Bc6 Nb3 Nd7 Na5 Ne7 g8B Nb6 Bh7 Ng6 Rh2 Re7 Rc7 Ra7 Rb7 Re6 Rg7 Rb7 Kf5 e4 Rh1 Ne5 Kf4 e3 Bd3 Be7 Kf5 Kd7 d6 e2 d5 Ra7 Ke4 Rc7 Kd4 Ra7 Kc5 Qc7 Bb4 e1R Rh2 Re3 Be1 Rg3 Rh1 Nf7 Rh2 Bf8 Rh1 Re7 Rh2 Ne5 Rh1 Kc8 d7+ Kb8 d8Q+ Qc8 Nb7 Ra1 d6 Rc7 Qde8 Re7 d7 Kc7 Na5 Rf7+ Kd4 Kd6 d8Q+ Rd7 Qf3 Qc7 Qb8 Re7 Rg6 Reh7 Rg7 Be7 Qeh5 Ke6 Ke3 Bc5+ Kf4 Bd4 Qf8 Bb7 Qa3 Qc2 Rh2 Bc6 Bgf1 Qb3 Rc2 Qa4 Rc3 Qc2 Bg2 Nf7 Bgf1 R3g2 Qd1 Kd5 Qdc1 Rg3 Kf5 Ne5 Rc4 Bc3 Rc5+ Kd4 Qcb2 Ke3 Ke6 Bd4 Ke7 Kf4 Kd6 Rg4 Qc1+ Kf3 Bfe2+ Kg2 Bf1+ Kh2 Qf4+ R4g3 Bg2
1qqnBkn1/3Q2P1/b3bN2/P1r1P1nK/Q4B1R/1q2QN2/2q3P1/3N2b1 b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 Ke7 b4 axb4 h4 Ke8 a4 c5 d4 g5 hxg5 b5 Ba3 c4 Bc1 Ra7 Ra2 Rc7 Ra3 Rc5 dxc5 bxa3 Kf2 h5 Kg3 f5 Kh4 b4 e4 c3 d6 b3 c6 a2 c7 a1Q a5 c2 e6 b2 e7 f4 g6 f3 e5 f2 Ne2 Nc6 Nd2 b1Q Ne4 Qaa2 Ng5 Qbb3 Nf7 Be6 Bg5 c1Q c8Q Qac2 Bf4 Q1b2 Qb7 Qc8 Ng5 Nd8 Nc3 Qbb1 Bd3 f1B Qa7 Bh6 Bf5 Ba6 Nf3 Qbb8 Bg4 Q1b3 Qe3 Bf8 Kg5 h4 Qa1 h3 Nd1 Bh6+ Kh5 h2 Qa4+ Q3b5 Rf1 h1N Bh3 Nf2 Rh1 Ne4 Bf5 Rh7 Rh4 Ng5 Bd3 Nc6 Bf1 Qbb3 Bb5 Kd7 e8N Kd8 d7 Ke7 d8Q+ Kf8 Bg3 Rc7 Qd7 Nd8 Nf6 Rc5 Bf4 Bg7 Ne8 Bf6 Bc6 Be7 Nf6 Bd6 Qa7 Bc7 Be8 Bb6 Q7d7 Rc3 Qee4 Bg1 Qe3 Rc5 g7#
QN4r1/1N1P4/6Pb/1q1bQ2r/1r1BQ2R/PP1B1kp1/n2qqN2/1K2n3 b - - 0 1 illegal: No possible last move
1Q1N1nNq/b3NPP1/7P/k1b1K3/4pr2/5r1Q/2PB2pb/B1nB1r1R b - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 gxh5 f5 axb5 c4 exf5 c3 Ke2 cxd2 b4 g5 f6 g4 f3 g3 Ba3 Bb7 Nc3 Bd5 Rc1 Be6 Rb1 Bg4 fxg4 Kf7 Rc1 dxc1B Ke1 Ke8 Ke2 e5 Kd3 a5 Ke4 d6 h4 Kd7 g5 Kc7 h6 Kb6 f7 g2 h5 a4 g6 Ra5 h7 Bf4 Nh3 Bh2 Nf4 Na6 Qg4 Ne7 Bc1 a3 Ne6 a2 Qh3 a1B Be2 Ra3 Bd1 Rg8 h8B d5+ Ke3 d4+ Ke4 d3 h6 Qe8 Nd8 d2 Bf6 Bb2 g7 Ng6 Kf5 Bc5 Ne4 Qf8 Ke6 Rf3 Kd5 Bbd4 Ke6 Nb8 Kd5 Nc6 Ke6 Ka7 b6+ Ka6 b7 Na5 b8Q Nb3 b5+ Ka5 b6 Qe8+ Kd5 Nf8 b7 Be3 Qbc8 Ba7 b8N Bec5 Nbc6+ Kb5 Bb2 Nc1 Ne7 Ka5 Bg5 Rf4 Nf6 e4 Ba1 Rh8 Bg4 d1R+ Ke5 Rdf1 Qb8 Nh7 Bh4 Bab6 Nc6+ Kb5 Qd6 Qb8 Be1 Rd8 Bd2 Ba7 Bd1 Ka4 Qc7 Rd3 Qd6 Rg3 Be3 Qh8 Nd8 Nf8 Nfg8 Rgf3 Qb8 Ka5 Bd2+
2n1Qb1Q/BBKRp1QP/4P1q1/r4p2/1R4qP/2P5/1R4N1/q1bnk1q1 b - - 0 1 legal: proof: a4 a5 d4 c5 h4 cxd4 b4 g5 f4 h5 Na3 b5 Nc4 Bb7 axb5 a4 Nb2 Ra5 bxa5 Bd5 Nd3 Be6 Nf2 Bh3 gxh3 Qb6 fxg5 Qd8 Ng4 hxg4 Kf2 f5 e4 Kf7 h5 Ke6 h6 Ke5 g6 d5 h4 a3 g7 a2 c3 d3 Ke3 g3 b6 g2 h7 d2 b7 Qd6 a6 Qc6 a7 Nf6 a8Q Nbd7 g8Q Nb6 b8R Nc8 Qda4 d1Q Nh3 Qg4 Rab1 a1Q R8b4 g1B+ Kd3 d4 Be3 Bf2 Nf4 Nd5 Bg2 Qcg6 Kc4 d3 Kc5 d2 R1b2 d1Q Qe8 Qg1 Bf3 Bg3 Ng2 Bf4 Bf2 Ne3 Qg7+ Qf6 Kb5 Nd1 Ba7 Bc1 Rh2 Rg8 Rd2 Rh8 Rd6 Rg8 Kc6 Rh8 Kc7 Rg8 Ne3 Kf4 e5+ Kg3 e6 Qfg6 Rd7 Rh8 Bg2 Kf2 Bb7+ Ke1 Rhb2 Rg8 Qh8 Bg7 Qf7 Re8 Qb8 Bf8 Qfg7 Rd8 Rdd2 Rd5 Ng2+ Kf1 Qa8 Rb5 Rd7 Ra5 Nf4 Ke1 Qb8 Nb6 Qe8 Nc8 Ng2+
QB1R1R2/2q1n1rn/4n3/bp1P3b/4BQ2/PK1P1pR1/N2kPp1B/2b5 b - - 0 1 legal: proof: f4 b5 g4 a5 c4 h5 gxh5 g5 Nc3 e5 fxe5 Ra6 Nd5 Rd6 Nf4 gxf4 b4 Rd5 cxd5 d6 exd6 axb4 h4 Kd7 h6 f5 a3 c5 d3 b3 Kd2 b2 Kc2 b1N h7 f3 h5 c4 h6 c3 Rh2 f4 Rh1 f2 Kb3 c2 Bg2 Nc3 Be4 f3 Nh3 Nc6 Qd2 Nf6 Qf4 Na4 Ng5 Rg8 h8B Rg7 h7 Qc7 Be3 c1B Ba7 Be7 Bb8 Bd8 Rh3 Ne7 Rg3 Ba6 Ra2 Bc8 Rc2 Nc5+ Kb4 Ne6 Kb3 Qb7 Rc4 Ba5 Ra4 Kd8 d7 Qc7 Rd4 Nc6 Rc4 Ke7 d8R Bd7 Rb4 Be8 Ra4 Bh5 Rf8 Bad2 Ra8 Ba5 Rd8 Ne5 Rf8 Kd6 Rd8+ Kc5 Rf8 Rf7 Bg7 Kd4 h8Q Nh7 Bf6 Bb4 Be7 Ba5 Bd6 Rg7 Ba7+ Qc5 Qf5 Ke3 Rfb8 Nc6 Nf7 Nb4 Rh3 Qb6 Ne5 Nf4 Nc6 Nc2 Nb4 Bg4 Na2 Ne6 Bh2 Nb4 Rg3 Kd2 Qe8 Nc6 Qf4+ Ke1 Qc8 Bh5 Qb7 Ne7 Rf8 Qc7 Rad8 Kd1 Bb8 Ke1 Qa8 Kd1 Qf7 Kd2 Qf4+
1nR4K/1b6/kQ3P1R/n1P2RB1/BPb4N/Pb3b2/B2rQ1r1/qrbn4 b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 b5 b4 g5 Qf3 a6 Qb7 a5 Na3 a4 Nc4 Ra6 Na5 Ra8 d4 cxd4 hxg5 Qc7 Nb3 axb3 Qxb5 Qa5 Qb7 Qd8 Ke2 h5 Kf3 d5 Kf4 e5+ Kg3 d3 Kh4 d4 g4 b2 f4 b1B c4 d2 f6 d1N f5 e4 c5 e3 g6 d3 Kg5 h4 g7 e2 Kg6 e1R g5 d2 a3 h3 Be2 h2 Bf1 Qd4 f7+ Kd8 Qg2 Kc7 Qe2 Kb7 Nf3 Ba2 f6 Bc4 Nh4 Ka6 Bh3 Bd6 f8R Bb7 Bd7 Bf4 Rc8 Qc3 Rf1 h1B Ba4 Bhf3 Ra2 Qa1 Rb2 Nh6 g8B Nf7 Kg7 Nd8 g6 Ndc6 Rc2 Na5 Rc3 Bfd5 Rh3 Bf3 Be6 Re8 Rf2 Re7+ Kh8 Rd7 g7 Rg1 g8Q Rdg7 Bd5 R7g2 Qf7 Bh5 Be4 Ne3 Nf5 d1B Rd8 Nd7 Bb1 Bb3 Ba2 Bg4 Rg8 Rd8 Rh6 Nb8 Nh4 Rh1 Bd2 Rb1 Qc7 Nd1 Rf1 Be3 Rf5 Bgf3 Re8 Rd6 Rc8 Bg5 Bc3 Bc1 Bd2 Rd7 Bg5 Rd2 Qb6#
4rr2/n2Bn1kB/P2q1b2/KN2Q3/b1N2PrP/1r2N3/1n1BP1R1/1br4Q b - - 0 1 legal: proof: b4 a5 g4 axb4 d4 h5 gxh5 d5 a4 f5 c4 e5 dxe5 Nc6 cxd5 Nb8 Ra3 Bd6 Rg3 Bf8 Rg4 fxg4 Kd2 Kf7 h4 g5 f4 c5 e6+ Kg7 d6 b5 e7 c4 e8B b3 Kc3 b4+ Kb2 c3+ Ka1 b2+ Ka2 b3+ Ka3 g3 Kb4 g2 a5 g4 a6 c2 Nc3 b1B Nd5 b2 Nf3 g1R Bg2 g3 Ne3 Be7 Nd4 Bd7 Nb5 Bf6 Bd2 c1N Rh2 Ne7 Be4 g2 Bh7 Nbc6+ Ka4 Rf8 h6+ Kh8 Qe1 Na7 Qd1 Qb8 Ka5 Nd3 Qe1 Bc6 d7 Qd6 d8N Rf1 Qc1 g1R Bd7 Rg4 Nb7 Rae8 Rg2 Rf3 Qh1 Rf1 Bhf5 Rc1 h7 Kg7 h8Q+ Kf7 Nc3 Ba4 Qh5+ Kg7 Nb5 Bbc2 Bg6 b1R Bh7 Rb3 Qc5 Nb2 Qe5 Qd3 N7d6 Bb1 Ndc4 Qd5 Bc8 Qd6 Bd7
k1N1r1N1/6qP/1n2Q3/B3q2R/6BK/Q1nPP1rB/nn1q1rPb/b1Q5 b - - 0 1 illegal: No proof kernel
6n1/2qQ1NP1/1B1bb3/rP1k2P1/q4QB1/1qbK1P2/rR2QR1r/1nr3R1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 a4 Qd7 e4 fxe4 Nc3 Qd6 Na2 Qc5 axb5 Qc6 b6 Qd6 b5 Qd8 Nb4 axb4 Ke2 Kf7 d4 h5 g4 c5 f3 e5 b7 b3 d6 Ke6 d7 b2 g6 b1Q g5 e3 g7 e4 Ra6+ Nc6 b8R c4 Ra2 h4 Ra6 c3 Qd3 c2 Bh3+ Kd5 Qd1 Qc7 d8Q+ Bd6 Qd7 Ne5 Bg4 h3 Ra2 h2 Rb2 Ra2 Nh3 Nc4 Ra8 Na3 Rg1 h1Q Nf2 Qh4 Nd3 Rh7 Bd2 c1R Ne5 Rh8 Qf7+ Be6 Ba5 Qbc2+ Qd2 Qb3 Qf4 Nb1 Bb6 Ra5 Qd3 Rh7 Nf7 Rc2+ Kd1 Rg2+ Qc2 e2+ Kc1 e1B Rc8 Bc3 Qe2 Qa3 Kc2 e3 Kd3 Qb3 Ra8 Ra1 Raa2 Rh8 Qd1 e2 Qf1 e1R Rf2 Rg3 Rab2 Rg2 Qe2 Ra5 Qed2 Qh1 Rff1 Na3 Ra2 Be7 Qde3 Rge2 Rg3 Rhh2 Rf2 Qa4 Rd2 Nb1 Rc2 Qf1 Rg1 Rc1 Ra2 Rb2+ Qe2 Rbc2 Ra3 Ra2 Rb3 Bc5 Rb2 Qe1 Ne5 Kd6 d5 Ke7 Nf7 Qed1+ Qfd2 Qdb3 d6+ Ke8 d7+ Ke7 Qf4 Ba3 Ne5 Kd6 Nf7+ Kd5 d8Q+ Bd6 Qd7
2rB1R2/rQPq2QP/qP4P1/1r1RRb2/nq1n4/k2N4/Q2b1B2/4rnK1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 Kf7 exf5 g6 d4 Qc7 dxc5 Qd8 f6 Ke6 f7 Bg7 Be2 Bh6 Bf1 Bf8 g4 Nf6 Bd3 Ng8 f5+ Kd5 f6 Ke5 Nc3 Ke6 Bf5+ gxf5 Ne4 h6 g5 h5 Nf2 Bg7 Ng4 hxg4 Bf4 Bh6 Bc1 Bf8 Kf2 a5 c4 d5 h4 f4 b4 a4 b6 f3 b7 g3+ Kf1 a3 b5 a2 b6 g2+ Kf2 d4 h5 d3 g6 d2 h6 Qd4+ Kg3 f2 Kh2 f1N+ Kh3 Nd7 b8B Ra7 c6 Nc5 h7 Nh6 c7 Nf5 Qc2 Kd6 Ne2 g1R Nf4 d1Q Nd3 e5 Bg5 Bh6 f8R e4 f7 e3 Bd8 Na4 c5+ Kd5 c6 e2 Rc1 a1Q Qa2+ Qb3 Rc2 e1R Re2 Kc4 Re5 Qd7 Rh2 Rg5 Rd2 Rh5+ Kg2 Nd4 Kg1 Kc3 Rd1 Qb4 Rd2 Ba6 Rd1 Bd2 c8Q Bc4 Bd6 Be6 c7 Bf5 Qb7 Rg8 B6e7 Rh8 Bh4 Rg8 Qb1 Qa2 Qa1+ Kb3 Bf2 Rh8 Rfe8 Ka3 f8Q Rg8 Qb1 Qc4 Qg7 Qa6 Rf8 Bg4 Re7 Rb5 Re5 Bf5 Rc1 Bg4 Rcc5 Bf5 Rcd5 Qb2 Be7+ Bb4 Rf7 Rc8 Bd8 Bd2 Rf8 Qb4 Qa2+
Rk3rr1/rqR2Nb1/2P1n1Rn/4P3/3rBr2/2N2rPN/1qb3P1/2QQ2K1 b - - 0 1 illegal: No possible last move
1K6/2Q1PRk1/P2b4/b1bQrn1B/BR1Bb2N/2r1PR1P/4b1r1/1qr3n1 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 e5 fxe5 h5 g4 Qd6 g5 Qf6 Na3 Rh6 Nc4 Qd8 Ne3 Rh8 Ng4 hxg4 Qc2 g6 Qxg6 Ra7 Qg7 Ra8 Kf2 b5 Ke3 c5 Ke4 f5+ Kf4 g3 a4 b3 d4 g2 e6 b2 Ke5 b1B a5 f4 h3 f3 g6 b4 a6 c4 d6 f2 e7 b3 d5 c3 Bf4 b2 Ra4 c2 Bg3 c1B Qh7 Bd2 g7 Kf7 d7 Nh6 Kd6 Rg8 Qd3 Ba5 Rb4 Nc6 Be5 Qb6 d8Q Bg4 Bd4 Rc8 Nf3 g1B Qc7 Nf5+ Kd7 Bc2 d6 b1R Nh4 Re1 Bg2 f1R Bf3 Bh2 Qb5 Be5 Qd5+ Kf6 Rg1 Be4 Rg3 Bh5 Bg4 Rc1 Rf3 Rfe1 Rc4 Qb1 Rb4 Rh8 g8B Kg7 Be6 Rg8 Bf7 Rc3 Be8 Rec1 Qc4 Rb8 Qd5 Rb5 Kc8 Rbc5 Bf2 Ncd4 Ba4 Bf4 Kb8 Be3 Qe6 Re5 Qd5 Nc2 Bg1 Bc5 Be3 Ne1 Bd4 Be8 Bh5 Bb5 Rf1 Nf3 e3 Be2 d7 Ng1 d8R Nh6 Nf3 Kh8 Nd2 Bg7 Rdf8 Rf5 Qcd7 Be5+ Q7d6 Kh7 Qc7 Rg2 Rf2 Bed6 Nf3 Re5 Nh4 Nf5 Rf3 Kg7 Rf7+
R1K1QQ2/6P1/nNBq3R/qnRQ2n1/n1b2r2/r2P1nk1/nBPP4/q7 b - - 0 1 legal: proof: h4 d5 a4 g5 a5 gxh4 Rh2 c5 Rh1 b6 axb6 d4 Na3 d3 exd3 Qd4 Nb1 Qd8 b4 e5 f4 e4 b5 Be7 Nc3 Bf6 Nd5 Bc3 Nb4 Be5 fxe5 cxb4 Ke2 Ke7 Ke3 Ke6 Kf4 h5 g4 a5 g5 f5 g6 b3 b7 h3 g7 b2 b6 b1N Ra2 h2 Qe2 e3 Bg2 h4 Bc6 h3 Ba4 Rh4+ Qg4 e2 Ra1 e1N Ba3 Nf3 Bb2 Na3 Re1 Ne7 Be8 a4 Re3 Qd6 Re2 Ng5 Bc1 Nd5+ Kg3 Nb5 Qf4 a3 Qg4 a2 Bg6 a1Q Qc4 Na6 b8R Rf4 b7 Qa5 Qc5 Ndc3 Bb2 Na2 Nf3 Bd7 Rf8 Bc6 b8Q Bd5 Rd8 Bc4 Be8 Ra7 Bc6 Ra8 Rf1 h1Q Rh2 Ra7 Rff2 Qa1 Rh1 h2 Qd5+ Ke7 e6 Ra8 Bc1 Kf6 e7 Kg6 Ne5+ Kh5 Nd7 Ra7 Kg2 Kg4 e8Q Ra8 Bb2 Ra7 Rg1 h1N Nb6 Ng3 Rh1 N3e4 Rh6 Nec3 Re2 Na4 Re5 Nf3 Kf2 Ng5+ Ke3 Kg3 Qf8 Ra8 Qc8 Rd4 Qd7 Rg4 Qde8 f4+ Ke2 f3+ Ke3 f2 Rb8 Ra7 Ra8 Rf4 Rf5 Nbc3 Re5 Rf3+ Kd4 f1N Rf5 Nh2 Re5 Qdb4 Rf5 Rf4+ Ke5 Nb5 Kf6 Nh3 Ke6 Nf3 Rd8 Ra8 Kd7 Nhg5 Rb8 Ra7+ Kc8 Qd6 Ra8 Re7 Qdf7 Re1 Rc5 Rb1 Ba3 Rb3 Bb2 Ra3 Qd5
2RQ4/n2KP3/1rP1Pk1b/1Q2N2b/1NqQ1Nq1/2n2b1P/1Rbq3q/2q3B1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 d4 cxd4 axb5 Ke7 Kf2 Kf7 Ke1 Ke8 Kd2 h5 Bg2 a5 Ke1 f4 Bf3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Rh7 Bg4 hxg4 Ra4 Rh3 Ra1 Rh8 Kd2 Kf7 Kd3 g5 Kc4 g3 Kd5 g2 c4 d3 e4 d2 b4 g4 h3 g3 e6+ Kf6 c5 f3 b6 a4 b7 a3 b5 a2 e7 f2 Kd6 f1Q b6 Qc4 Ne2 g1Q Rh2 g2 Qa4 d1B Na3 Nc6 b8Q Bc2 b7 Rh6 Nf4 Na7 Be3 Qc1 Rb1 a1Q Bg1 Qaa2 Rb2 Rg6 Qc7 Bh6 b8Q Bb7 Qcc8 Qa5 Qd8 Qad2+ Kc7 d5 Kd7 Ba8 Qbb5 d4 Qab4 d3 e5+ Kg7 Rh1 Rb6 e6 Bf3 c6 Kf6 Qd6 Bcd1 Nc2 Bh5 Nb4 Bdf3 Bf2 Qa4 Rd1 g1Q Be3 Qg4 Bg1 Qaa2 Rf1 Qh2 Qdd5 d2 Qd4+ Kg5 Rf2 d1B Rfd2 Bc2 f6+ Qc5 f7 Nf6+ Kc7 Qc4 f8N Nd5+ Kd7 Nc3 N8g6 Qa2 Ne5 Kf6 Rd1 Qcd2 Rdb1 Qcc4 Ra1 Qb1 Ra5 Qbc1 Raa2 Nc8 Ra8 Na7 Rc8
1qnr2RB/2r1q1P1/KQ1nrP2/3P3R/1b1Qn1N1/2p1N2Q/1N4P1/2bb3k b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 a4 b5 axb5 Nf6 h4 Ng8 b4 g5 hxg5 a6 b6 Nf6 b5 Nh5 b7 Nf6 b6 Ng8 Bb5+ axb5 Ke2 Kd7 d4 Kd6 f4 h5 f5 c5 f6 e5 g6 e3 Kd3 e2 Bd2 e1B Qg4 h4 Qg5 h3 Qf4 h2 Qf5 e4+ Kc3 c4 Kb4 e3 Qg4 e2 Ra2 c3 Ra6 Qe7 Ka5 b4 Qf3 b3 Bh6 b2 Qh3 Ra7 Na3 b1Q Nf3 Nd7 b8N Bd2 b7+ Nb6 Nc6 e1R b8Q+ Rc7 Nb4 Bc1 Nbc2 Bg4 Ra8 Nc4+ Ka6 Re6 Bg7 Qb4 Qa7 Qb8 Ne3 Bh5 Nac2 Bg4 Nd1 Bh5 Nce3 Bg4 Rg1 h1N Nb2 Nf2 Nh2 Ne4 Rh1 Bd1 Qb7 Nh6 Qb3 Nb6 Qc4 Rg8 Bh8 Nc8 g7 Nf7 Qb3 Kd7+ d6 Kc6 d7 Nfd6 d5+ Kc5 d8Q Kd4 Qb5 Ke5 Qa4 Kf4 Qh5 Kg3 Qd4 Rc5 Qb6 Rc7 Qh6 Kf2 Re1 Kg3 Qh3+ Kf2 Re2+ Kg1 Rf2 Kh1 Rf5 Qf7 Rg5 Be7 Rh5 Rd8 Qf5 Bf8 Qh3 Qe7 Qc4 Nf5 Qb4 Qa7+ Kb5 Re8 Nc2 Qd8 Qbe3 Nb6 Qa5 Bb4 Qd4 Qe7 Ne3 Rf8 Rd8 Qb8 Ka6 Nc8+ Qab6 Nfd6 Re8 Qf7 Re7 Rd8 Re8 Qd7 Rg8 Qe7 Nhg4+
2Qqbr2/3nPb1p/3k4/2nr4/1PNB1q1r/K3PN2/NQ2qPB1/1RQ4n b - - 0 1 legal: proof: h4 b5 a4 e5 axb5 g5 d4 gxh4 dxe5 Bb7 b6 Ba6 c3 Bc8 b4 f5 e3 f4 b5 f3 Ra2 Kf7 Re2 fxe2 Kd2 Bb4 cxb4 Ke8 Kc2 Ke7 Kb2 e1Q g4 a5 e6 c5 g5 d5 b7 c4 b6 d4 g6 a4 g7 a3+ Ka2 c3 Qd3 h3 Qf5 c2 Bb5 d3 Ne2 d2 Qe4 d1B Nd2 h2 Nc3 Kd6 e7 Ra5 Nf3 Qe2 Qc4 Nf6 g8Q Ne4 Bc6 Nc5 Qg7 Rf8 Bb2 Nbd7 b8N c1R b7 Ba4 Be4 Rd1 Nc6 Rd4 Rb1 h1N Nce5 Bc6 Bd5 Rh4 Be4 Bd5 Qh8 Bf7 b8Q+ Qc7 Qa8 Qd8 Bc6 Bb7 Qc8 Be8 Be4 Bd5 Qg7 Bdf7 Qh8 Ne6 Kb3 Rd5 Na2 Rg8 Bd4 Rf8 Nc1 a2 Ka3 a1Q+ Na2 Nec5 Qc1 Nb3 Qg7 Qc3 Qh8 Qcc7 Qg7 Nbc5 Nc4+ Ke6 Qgg1 Qg3 Qb2 Qg4 Qgc1 Qf4 Bd3 Qd2 Bf1 Qe2 Nce5 Kd6 Bh3 Rh6 Bg2 Rh4 Nc4+
2bnnk2/n2pP2Q/NBB2rq1/5BP1/3NrR2/2K2NbP/4bqP1/3r3Q b - - 0 1 legal: proof: d4 e5 b4 exd4 f4 b5 a4 g5 fxg5 c5 axb5 h5 Nc3 Bg7 Ne4 Bf8 Ra3 h4 Rd3 c4 Nf6+ Ke7 Nh7 cxd3 Nf6 h3 Nh7 Ke8 Nxh3 Nh6 Ng1 Ng8 Kd2 a5 c4 f5 e4 f4 b6 a4 h3 f3 b7 f2 b5 a3 e5 a2 c5 a1Q c6 Qa6 c7 Nf6 b6 Nc6 b8N Bd6 b7 Rf8 Nf3 Qa2+ Qc2 Ra4 Na6 Qg8 b8Q Qg6 Be2 f1B Qbb1 Kf7 Bd1 Be2 Rf1 Ne8 Ba3 Kg8 Bc5 Qdf6 Bb6 Nd8 Qcc1 Qff5 Bc2 Rf6 Nf8 Rb4 Ne6 Rc4 Ng7 Kf8 e6 Bg3 Rf2 Qc5 Nf5 Rb4 Qh1 Rc4 Kc1 d2+ Kb2 d3 N5d4 d1R Rf1 d2 Bf5 Rc3 Qe4 Re3 Qh4 Re4 Qh7 Re1 Kb3 d1N Rf2 Nc3 Rf1 Bb7 c8B Rd1 Kc2 Nb5+ Kb3 Ba8 Bb7 Na7 Bc6 Bb7 Rf2 Bc8 Kb2 Qd5 Kc3 Qb5 Ng1 Qb1 Rf4 Qa2 Ngf3 Qd2+ Kb3 Qe1 Kc2 Qg1 Kc3 Qf2 e7+
1nB1b1q1/1kN2PN1/5rNK/rb1Q1r2/Pr4PR/3Pp3/1n3BQ1/2b3rB b - - 0 1 illegal: No possible last move
2r1N1K1/BNb5/k1PB1P2/P3B3/1Q1nQ1bP/4p1br/3qnRb1/r1Q3n1 b - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 h5 g4 f5 gxh5 f4 c4 f3 exf3 Rh7 f4 Rh6 f5 Rh8 Ra3 d6 Rb3 d5 Rb4 cxb4 c5 Nc6 Bd3 Nb8 Bc4 dxc4 Ke2 Kd7 Kf3 Kc6 Ke4 b5 Ke5 Kb7 f4 g5 h4 g4 d4 e6 a6+ Ka7 h6 g3 h7 b3 f6 b2 f7 b4 a5 c3 d5 c2 d6 g2 f5 b3 d7 Bb7 Nc3 b1B Be3 c1B Nge2 g1N Na4 b2 Ng3 Bg2 Rh2 Nf6 Nh5 Nd5 Ng7 Rg8 h8B Nc3 Ne8 Rg3 Bf2 Be7 f8B Nce2 Be3 Bd2 Qc1 Be1 Bhg7 Bg5 Bd6 Rh3 Bf6 Bbe4 Bh8 Bgf3 Rf2 b1R Bd4 Bgd2 Bg7 Qg5 d8Q Bg4 Qe7+ Bb7 Be3 Ra1 Qf8 Qf4+ Kf6 e5 Kf7 e4 Kg8 Nc6 Bge5 Rc8 f6 Bb4 B3d4 Qd2 Be3 Ncd4 Qe7 Ka8 a7 Bc6 Qf8 Kb7 Qe7+ Ka6 a8Q+ Kb5 Qb8+ Ka6 Qe6 Bd5 c6 Bc5 Qbb2 Bb6 Qb4 Bc7 Nc5+ Ka7 B3f4 e3 Nb7 Bg2 Bc5+ Ka6 Ba7 Rh2 Bd6 Rh1 Bfe5 Rh3 Rf4 Bg3 Rf2 Bh1 Qf5 Bg2 Qe4
4r3/n2QNP1r/6nr/1r1bQP1R/1P2NP2/B1bBkbn1/1pq5/B2N2K1 b - - 0 1 illegal: No proof kernel
4b3/k1R1Q3/4q2Q/KPQn3b/2rB1Pbb/2Nb2n1/PprBqP2/3N2N1 b - - 0 1 illegal: No possible last move
2r1B3/2NQ2PP/1r5k/1R1Pbr1q/nq1Rr3/r1bKB2P/p3R3/4QQ1n b - - 0 1 legal: proof: c4 d5 d4 h5 g4 e5 a4 g5 f3 b5 gxh5 g4 Nd2 g3 Ne4 Bg4 fxg4 Rh6 Nd2 Rh7 Nb3 Rh8 axb5 dxc4 d5 Na6 Nd4 exd4 Bh6 Nb8 Bf4 Bg7 Bc1 Bf8 Kd2 a5 e4 f5 b4 Kf7 e5 Kg7 h3 c5 g5 d3 g6 g2 b6 a4 b5 c3+ Ke3 c4 e6 d2 b7 a3 b6 f4+ Ke2 c2 e7 a2 e8Q f3+ Ke3 c3 Qd7+ Kh6 g7 f2 Qc8 Bd6 Ke4 Ne7 Qdg4 Be5 Bb2 c1R Qcd7 d1Q Bb5 f1R Qe2 c2 Rh2 Rb1 Bd4 c1R Nf3 g1B Qe1 Rc4 Re2 Qf8 Ng5 Ra3 Ne6 Na6 b8Q Nf5 b7 Qb4 Nc7 Rc8 Qa8 Be3 b8R Bd2 Bc6 Rff3 Rb5 Bc3 Qa7 Rbb3 Qf7 Rf2 Be8 Ng3+ Ke3 Nc5 Qf4+ Kh7 h6 Nh1 Qf8 Rf7 Qa4 Kg6 h7 Kh6 Qa7 Na4 Ke4 Qd2 Rd1 Qg5 Kd3 Rf5 Be3 Rcf4 Qf7 Qh5 Qd7 Rb1 Qd4 Rbb3 Qe4 Rb2 Qg2 Rb1 Qgf1 Rbb3 Bb6 Re4 Be3+ Bf4 Rb7 Qe7 Kc2 Rb5 Rb8 Qb4 Rd4 Rb7 Kd3 Rb5 Ra8 Rbb8 Ra5 Rb6 Bg1 Bg3 Rb5 Be5 Be3+
nNKb3q/1R1R4/rpk1n2B/2P3PB/1Bn2b2/1b2rPb1/Pq2R2Q/Q7 b - - 0 1 illegal: No possible last move, all moves rejected
b2q2bn/Q1P5/P3rNP1/q4q1N/4n3/q2r3p/1nB1PRN1/1KQQBk2 b - - 0 1 illegal: No possible last move, all moves rejected
n1k1K3/2qR1P2/1R1b2P1/rB2NR2/1pPPQB2/nQn4b/1Q4nq/1q4n1 b - - 0 1 legal: proof: h4 a5 d4 g5 hxg5 c5 dxc5 Qb6 b4 axb4 e3 Qd8 Bb2 f5 Qd5 b5 Qf3 d5 Nd2 d4 Ne4 fxe4 Bc1 d3 Qd1 Ra6 Qg4 Rd6 Qd1 Rd4 exd4 Be6 Qf3 Bf5 Qd1 Bc8 Kd2 Kd7 Ke3 h5 Kf4 e5+ Kf5 e3 Kg6 e2 Kf7 e1Q g4 h4 a4 e4 f4 e3 a5 b3 f5 h3 g6 b2 f6 b1N g5 d2 a6 b4 g7 e2 a7 h2 a8Q Ne7 g8Q Nd5 g6 Bd6 Nf3 Ndc3 Qe4 Rh5 Ra6 Na3 Rb6 Na6 c6+ Kc7 Qh7 Ra5 Ne5 Bh3 Rg1 h1Q Rg5 Qg1 Rf5 Kc8 c7 Qeg3 Qg8 e1N Qde2 d1N Bf4 Nf3 Qf2 Qh1 Bb5 Ne3 Qd2 Ng2 Qc1 Bf8 Qb2 Qd6 Ke8 Qgh2 Qgd5 Qb1 f7 Ng1 Qdb3 Qc5 Rc6 Bd6 Rb6 Nd5 c4 Nc3 Rc6 Kb7 c8R Nc7+ Kd7 Qb6 Rd8 Na8 Ke8 Qc7 Rd7 Kc8 Rb6
BQqN1qq1/P3P1k1/nP1p3q/5rRn/1P2B1K1/3Q4/1BnQr3/R4b1r b - - 0 1 illegal: No possible last move
kr2n3/4rN2/1QPn2B1/q7/1rPnQ1P1/2rNQ1RK/b2p2PR/2N1r2n b - - 0 1 legal: proof: f4 b5 d4 c5 dxc5 g5 a4 gxf4 axb5 e5 Nc3 f3 Nb1 Bd6 Bf4 f2+ Kd2 exf4 Ra6 Be7 Ra3 Bh4 Ra1 Bg3 hxg3 Ke7 Na3 Kf8 Nb1 Ke8 b4 d5 e4 Kd7 Ke2 Kc7 Kf3 Kb7 e5 h5 c3 a5 g4 f5 e6 h4 e7 d4 e8N d3 b6 h3 b5 h2 Ng7 d2 Be2 f1N Qa4 Rh7 Ne6 Nf6 Qe4+ Nc6 Qe3 a4 Ra2 a3 Nh3 Ne8 Nc7 Be6 Ng5 Ng3 Nd5 Ne4 Bd3 Re7 Nb4 N4d6 Nf7 Rb8 Rc2 Bb3 c4 a2 Nc3 a1R Ne2 Re1 Nc1 Ba2 Rc3 Nd4+ Kf2 f3 Kg3 f4+ Kh3 f2 c6+ Ka8 Bg6 f1R Nbd3 f3 b7+ Ka7 Qe4 f2 Rb3 Qa5 b6+ Ka6 Qe3 Rg1 Rc3 f1R Ra3 Rf5 Rb3 Rb5 Ra3 Rd8 b8Q Rb4 b7 Kb6 Qc8 Ka7 Qf5 Rb8 Qfe4 Rgf1 Rg1 h1N Rb3 Ng3 Rh1 Rg1 Rh2 Nh1 Ne2 Rc1 Ra3 Rc3 Nec1 Re1 Rb3 Ra8 b8Q+ Ka6 Qc7 Rab8 Qd8 Ka7 Qc7+ Ka8 Qb6 Ra4 Rb5 Rb4 Rf5 Ng3 Rf3 Nh1 Rg3
kb3b1n/6nb/6rb/Q1r2P1B/Rp5R/P3Q3/K1BPPb1n/1NQ3Bb b - - 0 1 illegal: No possible last move, all moves rejected
bQ2BNN1/5P1R/np1bKQ2/2q1P1b1/2r1qb1r/3P3k/1rP3BB/r2N4 b - - 0 1 illegal: No proof kernel
1q1qR3/2qp1Pk1/B4bP1/r4PQ1/n1NNQ3/nQ5K/1bNb1qP1/5bR1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 f4 a6 f5 a5 Bf4 gxf4 h4 Ra7 Qc1 Rc7 Qd1 Rc3 Nh3 Rg3 Ng1 Rg5 hxg5 Bh6 Nd2 Bg7 Nb1 Bf8 Kf2 Kf7 c4 e5 b4 h5 c5 e4 c6 d3 c7 f3 Kg3 d2 b6 f2 b5 e3 b7 a4 b6 a3 Nf3 h4+ Kh3 e2 Nh2 e1B Qa4 d1Q Qa8 a2 Nf3 Nc6 b8N Qc1 b7 Nd4 Qa5 Nb5 Bd3 f1Q Be2 Na3 Ng1 Bg7 Nc6 Bd2 b8Q Ba6 c8Q Ne7 Qb2 Nd5 Nf3 Qf2 Rg1 Nc3 Qcb7 Na4 Ncd4 Qcc7 g6+ Kf8 f7 Bf6 Qe5 Kg7 Qg3 Re8 Ne1 Re5 Qe3 Ra5 Q2b3 Bc4 Qbe4 Bd3 Bh5 Bf1 Be2 Qdb8 Ba6 Qbd8 Kg4 h3 Nec2 h2 Kh3 Qdb8 Qg5 h1Q+ Kg4 Be1 Nd2 Qhh8 Rc1 a1B Nc4 Bd2 Re1 Qhd8 Kh3 Bac3 Qeh4 Ba1 Re8 Bb2 Qe4
n3R2n/k1p5/4Q2b/R1P1B3/P2QbQ2/1b1P1bRb/1nn2NP1/2b1rNK1 b - - 0 1 legal: proof: f4 d5 h4 b5 e4 e5 b3 g6 Bd3 Qg5 hxg5 a5 b4 axb4 exd5 e4 Be2 Ra6 Bg4 Re6 Bf5 Re5 fxe5 gxf5 Kf2 Kd7 c4 h5 a4 f4 c5 f5 g6 b3 d6 Kc6 d7 Kb7 d8R h4 e6 b2 g7 h3 e7 b4 e8Q f3 Ne2 f4 Qf1 b3 Qe7 h2 Qg1 e3+ Kf1 f2 Rd3 Bh3 Na3 b1B Nd4 b2 Ne2 Nd7 Nd4 Nb6 Rc3 Bc2 Nb3 b1B Bb2 Nh6 g8Q Ka7 Qeg7 Nf7 Nc1 Bb3 Qg5 Be4 d3 Na8 Nc2 Bh6 Qh7 Re8 Na2 Nh8 Qd7 Re5 Re1 Re6 Ke2 f1N Qe5 Re8 Qde6 Re7 Rc4 Re8 Rb1 f3+ Ke1 e2 Kf2 Ne3 Nc3 Re7 Qf4 Re8 Nd1 Re7 Na3 Nc2 Be5 e1B+ Kf1 Bc3 Qd4 Bd2 Nf2 Bc1 Rb2 Re8 Nb1 Re7 Rg1 h1N Rb4 Re8 Rb8 Re7 Rg8 Re8 Rg3 Re7 Ng4 Nf2 Nd2 Nd1 Rb1 Nb2 Nf2 Bhf5 Rh1 Bg4 Rh5 Bh3 Kg1 Re8 Rhg5 Re7 Rg8 Re8 Nd1 Re7 Re8 f2+ Kh2 f1B Kg1 Be2 Nf1 B2f3 Nf2 Bd1 Ra1 Bdf3 Ra3 Bc4 Rb3 Bcd5 Rbb8 Bb3 Rb5 Na1 Qg6 Bc6 Bg7 Re1 Be5 Bce4 Qe6 Nc2 Ra5+
q2rR1Qq/1B5n/1N6/1KN1bQ1n/1Pp3P1/3R1pPq/1k1r1P1b/n1N1Q3 b - - 0 1 legal: proof: c4 d5 a4 b5 axb5 e6 cxd5 e5 d4 exd4 h3 g5 Bf4 g4 Bh2 g3 Kd2 gxh2 Ke1 Bg4 hxg4 Qc8 Qd2 Qd7 Qd1 Qd8 Kd2 Kd7 Kd3 Kd6 Kc4 Ke5 e4 a5 b4 h5 d6 f5 d7 c5 b6 a4 b7 d3 Nd2 h4 Nh3 a3 Ng5 h3 Qb1 a2 Ne6 f4 Qc2 f3 Re1 a1B Qd1 Bd6 Qc2 Ra2 Ng5 Nf6 Re2 Nh7 Nb3 d2 Qd3 d1N Kb5 Ne3 Nc1 Rd2 Ne6 Nc2 Re1 Qg8 d8Q Nd7 b8N Ndf6 Rg1 h1Q Qf8 Qg6 Qg8 h2 Rd1 Nh5 Be2 Bb2 Rge1 Na1 Qb1 Rc2 Rd3 Rd2 Bf1 Bd4 Re2 Bc7 Re1 Qe8+ Nd7+ Kd6 e5+ Kd5 Be2 Qa8 Nb6+ Ke4 Qc2 c4 Nc5+ Kf4 e6 Ke5 e7 Bc3 Qf7 Rd8 Qg8 Qf1 Qb1 h1Q Qc2 Qh3 Qb1 Qfh1 e8Q+ Kf6 Qd7 Bh2 g3 Ke5 Bd1+ Re2 Ba4 Bb2 Red1 Rd2 Qdf7 Bc3 Re3+ Kd4 Qff5 Bb2 Re8 Kc3 Qbe4 Qe1 Qb1 Qe5 Qbe4 Qf6 Qe1 Qh8 Bc2 Qf6 Be4 Qh8 N1d3 Kc2 Bb7 Be5 Nc1+ Kc3 Qfe6 Kb2 Qf5 Rc2 Rd6 Rd2 Rd3
8/r1n3QB/n2P2pq/P1pQPBRQ/3bN1nq/r1q2N1k/2Pb1N2/5K2 b - - 0 1 legal: proof: g4 d5 b4 e5 a4 a5 bxa5 d4 f3 e4 g5 d3 g6 Be7 Bb2 Bg4 Bf6 Bf8 Ra3 Bf5 exd3 e3 d4 Be4 fxe4 Qd7 d5 Qd8 Rb3 gxf6 g7 f5 Rb6 f4 Rg6 hxg6 d4 Kd7 h4 f5 d6 Ke6 a6 b5 h5 c5 a5 f3 h6 f4 a7 b4 h7 e2 d7 b3 Qd3 f2+ Kd2 e1B+ Ke2 b2 Qg3 Nf6 g8N Ne8 Qg5 Na6 Nh3 Bg7 Qh5 Bd2 Rg1 Qh4 d8Q Nec7 Rg5 Bf6 Bg2 f1N Nf2 Nh2 Bh3+ Ng4 Kf1 Be5 Nf6 f3 Qh6 Re8 h8Q Re7 Q6g7 Qh6 Nd3 f2 Qhh7 Rb8 a8B Rb3 Qhh8 Qh4 Qh5 Ra3 Bc6 Nb5 Qa8 Ra7 Bb7 Nbc7 d5+ Kd6 Bc6 Bec3 Be8 Bd4 Bf7 Ke7 Bg8+ Kd6 Nc3 b1Q+ Ne1 Qb2 Nf3 Qa1+ Nd1 Qc3 Qgh8 Ke7 Bh7 Kf7 d6 Ke6 e5 Bf4 Qh6 Bd2 Q6f8 Qh6 Qfg7 Qh4 Ne4 Qh6 Kg2 f1Q+ Kg3 Qe1+ Kg2 Qeh4 Kf1 Qe3 Ndf2 Qc3 Rh5 Q6g5 Qd5+ Kf5 Qha8 Kf4 Qah8 Qh6 Rg5 Nf6 Bf5 Ng4 Nf6 Kg3 Qb8 Ra4 Qb1 Ra2 Qd1 Ra3 N6e4+ Kf4 Nh2 Nf6 Qh5 Ng4 Nf6 Kg3 Nf3 Qb4 Nd3 Qc3 Ne4+ Kh3 Ndf2+
2q2RN1/nrkqRK1P/1Rn1Q2Q/pP1P4/2BP4/1N3p1N/3b4/1brn3q b - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 b5 a4 f6 axb5 Rh6 f4 Rh8 g5 h4 b3 fxg5 Bb2 h3 f5 e5 Bd4 Ba6 Be3 Bc8 Bf4 exf4 Nxh3 Bd6 Ng1 Bf8 Kf2 Kd7 Kf3 c5 Ke4 a5 Ke5 c4 h4 g6 d4 f3 e4 c3 b6 g4 h5 c2 b4 c1Q b5 g5 f6 g3 f7 g4 b7 g2 h6 g3 h7 Ne7 Kf6 Bh6 f8R Bd2 e5 Nec6+ Kf7 Na7 e6+ Kc7 e7 Qd7 Rh6 Nbc6 Qe1 Rb8 Nh3 g1N Qe6 g2 Bc4 Ne2 Ra3 g1Q Re3 Qh1 Re5 Be3 Nd2 Nc3 Nb3 Nd1 Rf6 Bd2 Re2 Qd8 e8Q Bd7 Q8e7 Rc8 b8N Rg8 Qe8 Qc2 Qe3 Bf5 Qh6 Qd7+ Re7 Qc3 Rd6 Bb1 Re6 Nb4 Rb6 Rg7+ Kf6 Qc1 Nc6 Qc3 Qf7 Qc1 Qe6 Qc2 Ne5 Nbc6 Ng6 Nb8 Rd6 Kb7 Bf1 Qc3 Ree8 Qdc6 Bd3 Kb6 Be2 Rb7 Ne7 Qc2 Kf7 Qf5+ Qef6 Qd7 Qe6 Rcc7 Kf6 Qc8 Ng8 Qd7 Re7 Qc8 Rdd8 Qd6 Kf7 Rc1 Bc4 Qdc6 Rd6 Qd7 Nf6 Qc8 Nd7+ Kc7 Nf6+ Q6d7 Rb6 Nbc6 Ng8
rR3r2/2P2nKp/Pbq2R1R/P2pkr2/Nq6/Q1PB4/Q1Qq4/3Bnb2 b - - 0 1 legal: proof: e4 e5 b4 c5 h4 a5 bxa5 f5 d4 g5 hxg5 Nf6 Bb2 Ng8 Nd2 Na6 dxc5 Nb8 Bd4 exd4 e5 Ra6 Ne4 fxe4 Rh6 Ra7 Rh1 Ra8 Kd2 Ke7 a4 Ke6 g4 b5 f4 d3 Ke3 d6 Kd4 e3 c6 b4 f5+ Ke7 e6 b3 g6 Kf6 a6 b2 g5+ Ke7 c7 b1Q f6+ Ke8 f7+ Ke7 g7 d2 a5 e2 g6 Kf6 e7 e1R e8R Qb5 Ne2 Qdd7 Rh6 Qdc6 Nc3 Re5 Na4 Rf5 c3 Nd7 Bd3 Ne5 Qc2 d1Q Rc1 Bd7 Rb8 Qd2 Rf1 Be6 Rf2 Bc4 Rf4 Be7 f8Q+ Ke6 Rf2 Qb4 Rf4 Nf7 Rf1 Nf6 g8Q Ng4 Rf3 Ne3 g7+ Kd7 Rf1 Ng2 Rf2 Ne1 Rf1 Nd8 Qd5 Bh4 g8B Bf2+ Ke4 Be3 Bf7 Bg1 Bh5 Nf7 Bd1 Bb6 Rf3 Rh5 Rff6 Rf5 Qg7 Rf8 Qg3 Rf1 Qf3 Rf2 Kf5 Bb5 Qda2 d5 Re6 Rf1 Kf6 Bc4 Kg7 Bb5 Qg4 Rf5 Ref6 Bc4 Be4 Bf1 Bd3 Ke7 Qgc4 Kd7 Qa3 Ke7 Q4a2 Kd7 Nc5+ Ke7 Ne6 Kd6 Nc5+ Ke5 Na4
k1Br2bK/P2q1Qr1/n3n2R/1QbPB2p/3nP3/1qNb1pN1/N1P3B1/8 b - - 0 1 legal: proof: b4 a5 a4 axb4 h4 d5 e3 g5 hxg5 c5 Ra2 d4 exd4 e5 f3 e4 Rb2 c4 Rb3 cxb3 fxe4 Qd6 Na3 Qc7 Nb1 Qd8 Kf2 Kd7 Kg3 Kc7 Kh4 b5 Kh5 Kb7 g4 f5 d5 h6 Kg6 b2 d4 b3 a5 b4 a6+ Ka7 d6 f4 d7 f3 Ne2 Nf6 Nbc3 b1Q Bf4 b2 Be5 b3 Qd3 Rh7 Qb5 Ne8 Bg2 Nc7 Ng3 Ne6 d5 Bc5 Rh3 Qe7 d8N Qd7 Kf6 Rg7 g6 Qa2 g5 b1N Rh5 b2 Rh4 Nd2 Rh5 Rh7 g7 b1B g8B Qb3 g6 Ba2 Rh4 Re7 g7 Rf7+ Kg6 Re7 Kh7 h5 Kh8 Rf7 Bh7 Re7 g8Q Rg7 Rh2 Qb1 Bf5 Nb3 Rh3 Nbd4 Qf7 Bc4 Rh4 Bf1 Rg4 Bd3 Rg6 Qb3 Rf6 Nbc6 Rg6 Nb4 Rh6 Rb8 Bfh3 Ka8 a7 Na6 Nc6 Bb7+ Qe8 Rd8 Nb4 Bc8 Bf5 Qb7 Qf8 Bd7 Bfh3 Be8 Bg4 Bf7 Nba2 Bg8 B4h3 Ng5 Bd7 Nge6 Bc8 Qd7 Qf7
3R1rb1/2b2P2/3Qp2r/3k4/QnbB3N/1qpNPrPB/QnP2N2/1b2K3 b - - 0 1 legal: proof: d4 b5 b4 g5 a4 e6 axb5 Be7 h4 gxh4 d5 Bf8 Ra6 Ke7 dxe6 Kf6 e7+ Kg7 Re6 fxe6 Bh6+ Kg6 Bc1 Kf7 e8Q+ Kf6 f4 h5 e3 d5 f5 Ke5 g3 c5 f6 a5 f7 h3 b6 a4 b5 h4 b7 d4 b6 h2 Bg2 a3 Kf1 c4 Ke2 d3+ Ke1 a2 Bb2+ c3 Qg4 a1Q Qg6 h3 Qg4 d2+ Kf2 d1R Qb4 Rh6 Be4 Qa3 Ne2 Bd6 Qc6 Bc7 Nd2 Qb3 Qa3 Nf6 Nc1 Nd5 Qca4 Nc6 b8N Ncb4 b7 Nf4 Bg2 Qd6 Nf3+ Kd5 Na6 Nfd3+ Ke2 Rb8 Qa2 Rf1 Nh4+ Rf3 Ba3 Nb2 Nc5 Bd7 Re1 h1B Ne4 h2 Nf2 Bb5+ Ncd3 Bc4 Bh3 Rf8 b8Q Bg2 Rd1 h1B Ke1 Bf1 Nc1+ Bfd3 Rd2 Ke5 Rd1 Bh7 Ncd3+ Kd5 Rd2 Bg8 Rd1 Na6 Bc5 Nb4 Bd4 Qa3 Qb1 Ba2 Qa1 Bb1 Qa2+ Qb3 Qb7+ Kc4 Qe4 Bg2 Rd2 Bf1 Qf4 Kd5 Ne5 Qc6 Bb6+ Bd3 Rd1 Kd6 Rd2 Qcd5 Ba7 Bf1 Rd4 Bb5 Ned3+ Kc6 Bb6 Qe5 Rd7 Qd6 Bd4 Kd5 Rd8 Bc4 Qxd6+
r1r3N1/qp4b1/2b1R1r1/5n1R/Q1K2PkB/Q1P1p3/PrP4n/1N1QbR2 b - - 0 1 legal: proof: g4 c5 e4 h5 f4 a5 g5 f5 exf5 c4 b4 axb4 Be2 g6 fxg6 c3 Bg4 hxg4 dxc3 Ra5 Qd3 Ra4 Qd1 Ra8 Ke2 d5 Kd3 Kd7 h4 Ke6 g7 Kf5 h5 e5 h6 b3 h7 e4+ Kd4 e3 g6 g3 Qf3 b2 Qf1 g2 Qf2 Bd7 Rh6 Qa5 Nh3 g1B Qe1 Qa7+ Kd3 d4 Ng5 Nc6 Bd2 Nge7 g8Q Bg7 Qf8+ Kg4 Nf7 Bf2 Kc4 Nf5 Qa3 Rhc8 h8R d3 Qg1+ Bg3 Be1 d2 Rh5 d1R Re8 Rd5 Re6 Rd6 Qh1 Ncd4+ Qc6 Rg8 Qca4 Bc6 Bf2 Rgc8 Nh6+ Kf3 Ng8 Kg4 Be1 Nf3 Bf2 Nh2 Be1 Bh6 g7 Bh4 Ne7 Bf2 g8Q+ Bg7 Qd8 Bh4 Ng8 Bg3 Nd2 b1R Qd7 Rb2 Nb1 Bf2 Qd8 Bg1 Bh4 Bf2 Nd2 Bg3 Rf1 Bf2 Nb1 Be1 Re4 Rh6 Re6 Rg6 Qd1+
QBN3K1/1p4P1/QB2pQ2/P1nqN2r/6Pr/2br1RP1/B4nk1/n5rb b - - 0 1 legal: proof: g4 c5 e4 d5 exd5 g5 b4 cxb4 a4 a5 h4 Qd6 hxg5 Qg3 fxg3 Nh6 Ra3 Ng8 Re3 b3 Re4 Nf6 Rd4 Ng8 Rb4 axb4 Kf2 Kd7 Ke3 Kd6 Kf4 h5 d4 f5 c4 e6 a5 h4 g6 h3 Kg5 b2 g7 b3 Kg6 h2 Kf7 f4 Nh3 f3 Nc3 b1N Qd2 b2 Qe2 f2 Ng5 Na6 Na4 Rh5 Nb6 Nc5 Nf3 Na3 Ne5 b1Q Bf4 Nf6 Qd3 Nfe4 Kg8 Bd7 Nc8+ Kc7 Bg2 Nc2 Rf1 h1R Bf3 Qd1 d6+ Kb8 d5 Na1 Be2 Bc6 d7 R1h4 d8B Be7 d6 Bf6 d7 Ra6 Rh1 f1R Bb6 Nf2 d8Q Rg1 Rh2 Bh1 Bf1 Na4 c5 Qf3 c6 Qd5 Qb5 Nc5 Bc4 Ra8 Ba2 Ra6 Qf8 Ra8 Ba7+ Kc7 Qa6 Rb8 Ne7 Kd6 Bb6 Ra8 c7 Rd8 c8Q Rd7 Qca8 Rd8 Nf3+ Be5 Nc8+ Kc6 Bb1 Bc3 Bb8 Qa2 Qc4 Rd3 Bf4 Nh3 Qca6 Kd5 Bb8 Ke4 Ne5 Qd5 Rf2 Ke3 Rf6 Nf2 Ba2 Ke2 Qe7 Kf1 Rf3 Kg2 Qf6
1q1bB3/QBP2Pr1/1b1Q1N2/3n1N2/KpP1q3/1rRpP1q1/6N1/3bB1rk b - - 0 1 legal: proof: b4 a5 g4 axb4 f4 f5 d4 c5 dxc5 e5 a4 h5 fxe5 f4 Ra3 Nc6 Rg3 Nce7 Rg2 Nf5 gxf5 Ra7 Rg6 Ra8 Rg4 hxg4 Kd2 Ke7 h4 b5 c4 d5 Kc2 g5 Kb3 f3 f6+ Ke6 h5 Kf5 f7 Ke4 a5 f2 c6 d4 h6 g3 a6 g2 c7 g4 a7 g3 e6 Nf6 h7 Rg8 h8N Nd5 e7 Rb8 a8Q Rg7 e8B Bg4 Rh5 Be7 Nh3 g1Q Qa3 g2 Qa1 Rb7 Rh4 Qb8 Qa7 Bd8 Ng6 Qh2 Ba3 g1B Ne7 Qg3+ Nc3+ Ke3 Bg2 f1R Nf4 Kf2 Nf5 Rb6 Kb2 b3 Bb4 Re1 Ka3 b2 Be4 b1Q Rh3 Qbd3 Bh1 Qe4 Ng2 Kf1 Qd2 Bf2 Qh6 Kg1 Qd6 Be3 Nd1 Rf1 Nf2 Rb1 Be1 d3 Rh2 Bd4 e3 Bd1 Ng4 Rb7 Nf6 Bb6 Ngh4 Rc1 Rc2 Rb1 Bf3 Rc1 Ng2 Kh1 Kb3 b4 Qa5 Ra7 Ka4 Rb1 Qa6 Rb3 Rc3 Ra8 Kb5 Ra7 Qb7 Ra2 Qa7 Rf2 Ka4 Rf1 Bd2 Rg1 Be1 Qee5 Be4 Qd4 Bf3 Qe4 Qf8 Qe7 Rc2 Nf4 Bb7 Nd5 Rc3 Qe4 Qd6
1rB5/1q1Q2Bp/1n1PK2n/4b3/P1rPkP2/B1r1R2p/R1R2QnN/2rr4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 Bg7 h5 Bh6 Na3 Bf8 g4 Nh6 Nc2 Na6 Nd4 Bd7 Ndf3 Bb5 Nh4 gxh4 g5 Bd7 g6 Ng8 g7 Nb8 Bh3 Be6 Bg2 Bf7 Bf1 Bg6 hxg6 Qd7 Nh3 Qc8 Ng1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 d4 b5+ Kc5 e5+ d6 b3 a4 h3 f6 b2 f7 b1R Bb2 b4 Bb5 b3 Bd7 Rc1+ Bc3 b2 Ra3 b1R Ne2 Qc8 Qf1 Qb7 Bc8 Nh6 g8Q Bg7 f8B Nd7+ Kc4 c5 Rh2 Rb3 Qf7 Rd1 Bb2 Rb8 Ng1 Rf3 Qf2 Nb6+ Kb5 c4 Kc5 c3 Qd7 c2 Ra2 Re3 Ba3 c1R+ Rc2 Bf6 g7 Rf3 g8R Rc3+ Kb5 Rc4 Rg3 Rg8 Rb3 Rg3 Bg7 Rgc3 Rg2 Kd5 Ra2 e4 Nf3 e3 Nh2 e2 Rc2 e1N Ra2 Rg3 Rc3 Be5 Rcc2 Re3 Rg3 Ke4 Rf3 Rb4+ Kc5 Ng2 Rg3 Qa6 Kc6 Rf3 Kc7 Qb7+ Kd8 Rfb3 Ke7 Rc3 Ke6 Rbc4 Re3+
1k2NKB1/N2R2P1/PbPB2Np/B4Q2/2bn2q1/r5b1/1Pbq2pQ/1r1b4 b - - 0 1 illegal: No proof kernel
1Q5b/1qp3nQ/3n1rR1/K3PPbN/2P2BQ1/1R1Rp1P1/1N2nq1b/1k1b4 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 h5 g4 hxg4 Bd3 Kf7 dxe5 Bc5 e6+ Ke8 e5 Bf8 Be4 fxe4 Bf4 g5 Qf3 a5 Qh3 g3 Qg4 g2 Qd1 g4 Nf3 g1B Bc1 g3 Nd4 g2 Ne2 Rh3 Qd4 Ra3 Qd1 Rg3 hxg3 Qh4 Nd2 Bh6 Rh2 Nf6 Nd4 Ba6 Qh5+ Kd8 Kd1 Nc6 Rh1 Ke7 Ke1 Rh8 Qg5 Bc8 Qg4 Ng8 Qf3 Bf8 Nb1 Nb8 Qd1 Ke8 Ne2 Qd8 Kd2 Ke7 Kc3 d5 f4 d4+ Kb3 a4+ Kb4 a3 c4 d3 b6 a2 b7 d2 b3 Bh2 Qe1 g1N Qf2 d1Q Qf3 Qe1+ Kb5 Rh6 b4 Qd5+ Ka4 Na6 b8R Nc5+ Ka5 Nb7+ Ka4 Qf2 b5 Bg7 b6 Nd6 b7 Bh8 Qg4 Rf6 Nbc3 Nh6 Bd2 Nhf5 Nd1 Ng7 Nb2 Bd7+ Kb4 Ba4 Rd1 a1B Bc1 Bb3 Rd3 Bd1 Rg8 Qc6 b8Q Qb7+ Ka5 Qf3 Na4 Bd4 Nb2 Qf2 f5 Be3 Nf4 Ne2 Nh5 Bg5 Bf4 e3 Rd2 Nge8 Rg6 Ng7 Qa7 Kd8 e7+ Kd7 Qb8 Kc6 Rd3 Kc5 Rb3 Kd4 e8Q Ke4 Qg8 Kd4 Rf1 Ke4 Qh7 Kd4 Rb4 Kc3 Rb3+ Kc2 Re1 Nc1 Re2+ Kb1 Rd2 Ne2 Rdd3
1bbnQ1b1/2p2PQ1/2b1P1R1/2Q2K2/1B2p1N1/1P1B3b/b2BP2k/3r1Rrq b - - 0 1 legal: proof: d4 a5 h4 e5 g4 g5 b3 gxh4 Nc3 f5 gxf5 e4 Qd3 a4 Qd1 Nc6 Nb1 Ne5 dxe5 b5 Nc3 a3 Na4 Qe7 c4 Qg5 cxb5 Qd8 Nb2 axb2 Kd2 Kf7 Ke3 b1B Kf4 h5 a4 d5 e6+ Kf6 b6 h3 a5 h4 b7 h2 b8Q d4 a6 h3 f3 d3 a7 d2 Kg4 Ke5 f6 Ba2 f7 Ne7 Ba3 Nc6 Be7 Rg8+ Bg5 Bc5 Qc1 d1B f8B Bc2 Bg2 Bd3 Qc4 Qd4 Rf1 Qa1 Qcb4 Bb5 f4+ Kd5 f5 Ke5 f6 Nd8 Bf3 Bc6 Q8b6 Rb8 a8Q Qd1 Qbb7 Ba7 Qa6 Rb5 Qba5 Rd5 Bb4 Bb8 Qc5 Qb1 Q6a7 Qc1 Qe7 Rd1 Qg7 Qa1 Bgd2 Qb1 Kg5 Qa1 Be1 Qb1 Kg6 Kf4 Bed2+ Kg3 Bh5 Qa1 Nf3 Qc1 Rf2 Qb1 Re1 h1B Qc5 h2 Rff1 Bg2 Ne5 h1B Kf5+ Kh2 Be8 Qc1 Rg1 Bh3+ Rg4 Bf3 Rf1 B6b7 Bb5 Bc6 Bd3 Qb1 Kg5 Qa1 Rg3 Bh5 f7 Bg6 Kf6 Bh7 Rg6 Qc1 Bdc3 Qh6 Be1 Qh5 Bed2 Qf3+ Kg5 Qh1 Kf4 Rh8 Kg5 Bg8 Qa4 Rh4 Kf6 Rg4 Kf5 Bd5 Qd7 Bc6 Qe8 Rg1+ Ng4+
bb4K1/1pP3NR/3Nn1rp/1P1QPnB1/4Q3/n1k2nR1/1PN3nb/Qr6 b - - 0 1 illegal: Other
n2rkBnr/RP2pp1Q/P1Q2q1P/3b2R1/4N1PQ/4Npr1/3K4/2Rn1b2 b - - 0 1 legal: proof: f4 d5 e4 b5 exd5 a5 b4 h5 g3 g5 Qe2 gxf4 Bg2 h4 Qd1 h3 Kf1 Bg7 Ke1 Bc3 bxa5 Bb4 c3 hxg2 Qg4 Bc5 Qe2 b4 Qh5 b3 Qd1 Bb4 cxb4 Rh7 Ba3 Rh3 Bc1 Rh8 a4 c5 h4 b2 d4 f3 h5 c4 d6 c3 g4 c2 d7+ Kf8 a6 Qe8 d8Q Bd7 a5 Ba4 b5 Rh7 b6 Rh6 d5 Rf6 a7 Rg6 d6 Re6+ Ne2 g1N d7 Rg6 Nf4 Re6+ Kd2 Rd6+ Nd5 Bb5 Nc3 b1B Ne4 Ne2 Qe1 Nc3 Qh4 Na6 h6 Be2 Bb2 Nc7 Rc1 Ba2 a6 Rb8 a8Q Bf1 Qc6 Nd1 b7 Na8 Bc3 Bb3 Ra5 Rc8 Qdb6 Qd8 Qe3 Qb6 Qd3 Bc4 Ne3 Bd5 Bf6 Qd4 Bh8 Qf6 Rb5 Re8 d8R Rd7 Rc8 Red8 Bg7+ Ke8 Ra1 c1R Bf8 Rb1 Qdc2 Rb2 Rc1 Ra2 Nc5 Ra1 Qh7 Rb1 Ne4 Rb2+ Ke1 Rg2 Ra5 Rg3 Kd2 Nc7 Ra8 Rb8 Ra7 Na8 Qc5 Rdd8 Qc4 Rbc8 Qc6+ Rd7 Qe6 Kd8 Qh2 Bb3+ Ke1 Rb8 Rg5 Bd5 Qc6 Rd6 Qb6+ Kd7 Bg7 Rf8 Nd2 Ke8 Qh4 Rd8 Qc7 Qc6 Qd6 Nf6 Ne4 Rh8 Kd2 Ng8 Bf8 Qb6 Qc7 Qf6 Qc6+
1rqqN1B1/7k/6Q1/1qP1pn1p/3B1RP1/b1QnP1P1/1b1prR2/3KB2R b - - 0 1 illegal: No possible last move
1q1n2n1/Q2Nr2b/4p1P1/1r1Npq2/P1rp2Q1/P5N1/2R1QP1B/2KBkb2 b - - 0 1 legal: proof: h4 a5 e4 g5 hxg5 d5 e5 a4 b3 c5 d4 cxd4 bxa4 Be6 Qf3 Bh3 Qd1 Bc8 g6 Bh6 Ke2 Bd2 Na3 Bb4 Nb1 Ba3 Ke1 Bd6 exd6 f6 a3 Be6 Ra2 Bh3 Rb2 Bc8 Rb3 Bf5 Re3 Bc8 Re5 fxe5 Kd2 Kd7 g4 Ke6 c4 h5 d7 b5 c5 h4 g7 h3 c6 d3 c7 h2 g5 Kf5 Bh3+ Kf4 Bf5 d4 Qh5 b4 Nf3 b3 Nc3 b2 Rf1 b1Q Rd1 h1B Ng1 e6 Qe2 Nc6 Bg4 Ba6 c8N Rb8 Nb6 Rh7 Rf1 Qe8 d8Q Be4 Qc7 Nd8 Nd7 Rb5 Qa7 Qg6 Kd1+ d2 Bh5 Qf5 Bg4 Nh6 g8Q Re7 Qg7 Ng8 Bh5 Qf7 Re1 Bh7 Nd5+ Kf5 Bf3 Qb4 Kc2 d1R Bf4 Qg6 Bh2 Rc1+ Kd3 Rc3+ Kd2 Rc4+ Kd1 Qd6 Kd2 Qb8 Rc1 Qf7 Rc2 Qf6 Kc1 Qf8 g6 Kg5 Qh8 Qf5 Qd2+ Kh4 Ne2 Kh3 Bg4+ Kg2 Ng3 Nh6 Bd1 Ng8 Nh1 Kf1 Qe2+ Kg2 Qg4+ Kf1 Ng3+ Ke1 Qf6 Bc8 Qfh4 Bb7 Qhh5 Bc6 N5b6 Bg2 Nd5 Bh3 Qh6 Bf1 Qe3+ Be2 Qd3 Bf1 Qde2+
q2k1KNq/bB3p2/NB5Q/p1Qb2Pn/1Pb2r2/1R2r1QP/n4Pp1/3N4 b - - 0 1 legal: proof: d4 c5 h3 e5 dxe5 c4 b3 b5 bxc4 g5 a3 b4 axb4 g4 Qd5 g3 Qd3 Qc7 Qd1 Qd8 e3 h5 Kd2 Bc5 Bd3 Na6 Rh2 gxh2 g4 Qa5 g5 Bf8 Qg4 hxg4 Ne2 Qd8 Ba3 Ne7 Nbc3 Bg7 Rh1 Ng8 Nb1 Bf8 Bc1 Nb8 Kc3 d5 Kd4 a5 e6 g3 Ke5 d4 c5 g2 c4 Qb6 c6 Rh5 c7 Ra7 c5 Bh6 e4 Bf8 c6 Nh6 Kf6 Bc5 Kg7 Ba6 c8Q+ Ke7 e5 Bc4 c7 Ng8 Be4 d3 Be3 d2 Nec3 d1B Nb5 Ba4 Qa6 Bab3 c8Q Bd4 Bb7 Nc6 N1c3 Nf6 Nd1 Rh4 Nc7 Rf4 Re1 h1Q Re2 Bd3 Rb2 Bd5 Rb3 B3c4 Qb8 Ra8 Qba7 Qb5 Qc5+ Kd8 Kf8 Na7 Qab6 Qc6 e7+ Kd7+ e8N Nh5 e6+ Kd8 Nf6 Nb5 Qa6 Nc3 Ng8 Na2 Qab6 Qf1 Qa6 Qd3 Qab6 Ra7 Qa6 Qh7 e7+ Kd7 Qab6 Qh8 Qa6 Qa4 Qg6 Qc6 Qh6 Ra6 Qb5 Ba7 Bb6 Be6 Qe5 Qe4 Qc3 Bed5 Qg3 Qf3 Bd4 Re6 e8Q+ Kd6 Qb8 Kd7 Bb6 Re3 Qa8 Bb8 Qa6 Ba7 Qb5+ Kd8 Qbc6 Qg4 Qb5 Qc8 Qc5 Qa8 Na6+
3b1KR1/2N1P3/rb2RQ2/2RPqpPP/kQ3n1N/N1p2q2/p2Bn1n1/r7 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 h5 g4 d5 cxd5 hxg4 Ra6 e4 Ra3 Bc5 Ra1 Bf8 d4 g5 f3 g3 e3 g4 Kd2 g2 Ke1 g3 Bd3 Bg4 fxg4 exd3 Kd2 Kd7 Kc3 a5 Kc4 c5 h4 f5 b4 a4 h5 a3 d6 d2 Kd5 c4 e4 c3 b6 Ra7 g5 Rc7 e5 Rc4 b5 Qf6 b7 Rc6 b6 Nh6 Qa4 d1Q Nf3 g1B Qb4 g2 Nh4 Ng4 Bd2 Na6 b8R Nc5 b7 Be7 Rg8 Ra6 b8Q Rh7 Q8b6 Nd3 Ra2 Be3 Re1 g1N Re2 Bd8 e6+ Kc8 Re1 Rha7 e7 Kd7 Rb2 Bf2 Re6 Ne2 Rb3 a2 Ra3 Rb7 Ra5 Be3 Na3 Qe5+ Kc4 Bf2 Rc5 Ne3+ Kb5 Ng2 Kc4 Qg3 Kd5 Ndf4+ Ke5 Qf3 Kf6 Qe1 Kg7 Be3 Kf8 Qeg3 Q6a5 Rb5 Qb6 Bg1 Qc4 Rb1 d5 Ra1 Qd4 Be3 Qf6 Qh2 Rc8 Bf2 Qb4 Bfb6 Rc5 Qhg3 Ra5 Kc8 d7+ Kb7 Ng6 Nh3 Rb5 Qe5 Nh4 Nhf4 Rc5 Ra5 Ng6 Ka6 Rd6 Bc7 d8N Ra4 Ne6 Bd8 Nh4 Ra5 Nd4 Ra4 Ndb5 Ra5 Re6 Ra4 Qc4 Ka5 Qd3 Kb4 Nc7 Ra6 Qb1+ Ka4 Qb4+
7r/3rp1R1/1q1Pqk1p/1Q2RPNB/b1N1p3/2P1N2Q/5P1n/1bnnK2Q b - - 0 1 legal: proof: b4 b5 g4 c5 a4 g5 e4 f5 gxf5 d5 h4 dxe4 Ba3 g4 axb5 Qc7 b6 Bh6 b5 Qd8 Bb4 Bg5 hxg5 cxb4 d4 Kf7 g6+ Kf6 d5 a5 g7 h6 d6 b3 c3 a4 b7 a3 b6 g3 Qd2 a2 Rh2 b2 Qd3 g2 Nd2 b1B Nh3 g1N Ng5 Nc6 b8Q Bd7 b7 Nd4 Nc4 Nge2 Rg2 Nc1 Be2 Qb6 Qh3 Ra7 Bh5 Bc6 Qa8 Ba4 b8Q Rc7 Qa5 Rd7 Qb5 Nf3+ Kf1 Nd2+ Ke1 Nf1 Qa8 Nh2 Qad5 Ng4 Qd1 Ne3 Qdf3 Nd1 Rg4 Bd3 Qfh1 Bdc2 Rb1 a1Q Rb2 Bd3 Rd2 Bb1 Rd5 Qa2 Re5 Qb3 Ne6 Qa5 Na3 Qb6 Rg5 Qd5 Rg6+ Kf7 Nc4 Nf6 g8N Ng4 Nf6 Nh2 Ng4 Rb7 Nge3 Rd7 Rg8+ Kf6 Ng5 Qe6 Rg7
R3NBbr/q2PQ1q1/n1kP3P/7p/2b3BK/1p2NBP1/Qqp5/1r2Q1n1 b - - 0 1 illegal: No proof kernel
8/1qP1B3/2Qr1QnK/2pQRNr1/1k1B4/qP2NPp1/b1p2P1B/4n1bb b - - 0 1 illegal: No proof kernel
3n2N1/P1B5/3q3R/2P3K1/1P1nRpn1/Q1rkppqQ/2RP2NQ/br3q2 b - - 0 1 illegal: No proof kernel
1QRN4/1r1pp2N/3br1Q1/2n2q2/1N2PP1P/k1Pp2nr/Q2Br1r1/2K2R2 b - - 0 1 legal: proof: g4 f5 gxf5 c5 a4 h5 d4 cxd4 Bh3 b5 Bg4 a5 Bf4 Bb7 Bc1 Bc6 axb5 hxg4 b6 a4 b3 a3 Bd2 Qc8 Bc1 Ba4 bxa4 Qd8 Kd2 g5 f4 a2 e4 d3 c3 g3 h3 g2 b7 g4 a5 g3 a6 Bg7 f6 Qa5 f7+ Kd8 f8N Kc7 a7 Kc6 Nh7 Kb5 Qf1 Ka4 Kd1 Na6 b8Q Be5 Qe8 Bd6 Qg6 Qf5 Be3 Nc5 Qf2 Nh6 Nf3 Rab8 Nfg5 Rb7 Rf1 g1R Ne6 Rg2 a8Q+ Kb3 Qd2 Re2 Na3 g2 Qb8 g1R Nd8 Rgg2 Nc2 Kb2 Nb4+ Ka3 Rb1 a1R Kc1 Ra2 Qc2 Rb2 Bd2 Ra2 Qf7 Rg6 Qg8 Re6 Qg6 Rg2 Be1 Rb2 Qf2 Re2 Bd2 Ng4 Rb2 Nf6 Rb1 Nh5 h4 Ng3 Rb2 Rg8 Rb1 Rh2 Rb2 Rh3 Ra2+ Kb3 Ra6 Rg7 Rc6 Ka3 Rc8 Nh5 Qf6 Rg2 Qg6 Ng3 Qd4 Qd5 Qc4 Qf5 Qa2#
r2bRKQ1/1q3n2/1Bp1Brq1/PNPp2n1/k3q3/3PNBN1/5P1p/1q4Q1 b - - 0 1 legal: proof: e4 e5 a4 g5 h4 a5 hxg5 b6 b3 Ba6 Ra2 Bc4 Ra3 Be6 b4 f5 exf5 axb4 fxe6 bxa3 Ke2 d5 Ke3 h5 g4 b5 c4 b4 g6 h4 a5 h3 d3 a2 c5 a1Q g5 h2 e7 Kd7 e8N Kc6 g7 Kb5 g6 e4 Kf4 c6 Kf5 b3 Ke6 e3 Kf7 b2 Bg2 e2 Nf6 e1Q Ng4 Nd7 Bf4 Be7 Ne2 Nf8 Ne3 Nh7 Ng3 Qc7 Bf3 Qb7 Bc7 Bd8 Nc3+ Kb4 Qb1 Ng5+ Kf8 Nh6+ g8B Nhf7 g7 Rh6 Nb5 Ka4 Bb6 Rf6 Rf1 Qb4 Re1 Qe4 Re2 Qg6 Qg1 b1Q Re1 Nh6+ Bf7 Qe5 g8Q Qd4 Nd1 Qh4 Re8 Qhe4 Ne3 Rd6 Be6 Nhf7 Beg4 Rf6 Be6
n3Nbk1/PN2r3/P1q4P/r1RR2p1/3K1pb1/QQ2P3/p3rB1r/R3N2q b - - 0 1 illegal: No proof kernel
2n4B/b3n1rN/bRN1B1P1/n1Np1P1P/1Q1p2p1/3BP1k1/1r6/Q1r1nK2 b - - 0 1 illegal: No proof kernel
1K1nq2q/2p2p1b/1R1N3p/1qQQN2b/2P5/nPPP4/1b1kb2Q/N1B2B2 b - - 0 1 illegal: No possible last move
r2n4/2B1R3/P1P1p3/1NB2p1P/pRB2qk1/1Q1R2bP/b2QqpK1/2q2r2 b - - 0 1 illegal: No possible last move, all moves rejected
1Q1r2b1/1KR1pP2/1R1PPnq1/p1b5/4BPN1/1Q3R2/brp1pN2/k1qQ4 b - - 0 1 legal: proof: c4 g5 a4 d5 cxd5 b5 axb5 f6 f4 Bh3 g4 Nd7 e4 Ne5 b3 Nc6 e5 Nd4 Bb2 Nf5 Bc3 Bg2 h4 gxh4 Bd4 Be4 Bc3 Ne3 Bd4 Bf5 Bb2 Bc8 e6 Nf5 Be5 fxe5 gxf5 Bg7 Ra4 Bh6 Ra1 Bf8 Ke2 h5 Ke3 c5 Ke4 a5 d4 c4 b4 c3 d6 c2 Kd5 h3 Kc6 h4 d5 e4 b6 h2 f6 h3 b7 e3 b8R e2 b5 Ba6 b6 Bg7 b7 Bd3 Nd2 Bh7 Rc8 Rb8 d7+ Kf8 f7 Bd4 d6 Kg7 Qb1 Kf6 Ra4 Bc5 Qd1 Kf5 Rb4 Nf6 Rb5 Bg8 Nc4 Ke4 Ne3 Qf8 d8Q Qh6 Rc7 Qg6 Qe8 Rd8 b8Q Rh5 Qc1 Kd3 Rb6 Kc3 Ng4 Rd5 Qd1 Rd4 Rd7 Rb4 Rc7 Kb2 Bg2 Ka2 Kb7 Rb2 Qd5+ Ka1 Qb5 Nh5 Qbb3 Nf6 Nf3+ Rb1 Rg1 h1B Rf1 h2 Ne1 Rb2 Be4 Bg2 Qd4 h1Q Rf3 Qg1 Nd3 Qc1 Ndf2 Bh1 Qd1 Bg2 Rg3 Bh1 Bc6 Bd5 Rf3 Bc4 Qa4+ Ba2 Be4 Qb1 Qb5 Qc1 Qb3
b1Q1nK2/p1N1P2N/2r2P1R/QNP4R/3Bp1k1/Q1rp2pp/P6q/2n4n b - - 0 1 legal: proof: d4 e5 dxe5 f5 e4 c5 b4 Bd6 bxc5 Nf6 e6 Be7 e5 Bf8 Bd3 Ng8 f4 Be7 Be4 fxe4 h4 Bg5 f5 Bf4 g3 Qe7 gxf4 Qxh4+ Kf1 Qh5 Ke1 Qh2 c4 Ke7 c6 b5 c7 d5 Qh5 g5 Nc3 b4 Nh3 b3 Be3 g4 Ng5 b2 Bd4 b1N Nb5 Bb7 c8Q g3 Kd1 h6 Nh7 Nd2 Kc2 Na6 Kc3 Nc7 Kb4 Nf6 Kc5 Ng4 Rag1 Nf2 Rg2 Qg1 Rgh2 Ne8 Rh4 Qg2 R1h2 Nh1 Qg5+ Nf6 Rh5 Rb8 R2h3 Ba8 R3h4 Rb6 Rh3 Rd8 Rh2 Ke8 e7 Kf7 e8N Rd7 Nec7 Ne8 R2h3 Qh2 f6 Re6 f5 Nb3+ Kb4 Nc1 Kc5 Ra6 Qd2 Ra3 Qa5 Rd6 R3h4 Rc3 Rh3 Kg8 f7+ Kg7 f6+ Kg6 f8Q Ra6 e6 Rb6 Ng5 Kf5 Nh7+ Kg4 Qd6 Rb7 Kc6 Rb6+ Kd7 Ra6 Ke7 Rc6 Bb6 d4 Qda3 d3 Bd4 Nb3 c5 Nc1 Rd5 h5 Kf8 h4 Rh5 Qg2 Rh2 Qh3 Re2 Qh2 e7+ Re6 Rf2 h3 Rff5 Rb6 Rh6 Rc6 Rfh5+
3r1N2/3q4/3pn1r1/2pPP1pP/BN2k1B1/P2N2Bp/1pRQK3/1rr1Q2b b - - 0 1 legal: proof: f4 a5 b4 b5 c4 Nc6 a3 Nb8 Ra2 e6 Rb2 bxc4 b5 e5 Rb4 axb4 fxe5 Ra5 Nc3 Ra6 Nb1 Ra8 g4 g6 h4 Bg7 h5 Ra6 h6 Ra4 hxg7 Ra8 Nh3 h5 Ng1 h4 Bh3 Nf6 Nc3 Nc6 Nb1 Nh5 gxh5 Ne7 Bf1 Ng8 d4 Ke7 e4 Ke6 b6 f5 b7 c5 b8N f4 Nf3 h3 Rh2 b3 Nc3 g5 Ke2 b2 Ne1 d6 Qd2 Ne7 Nd5 c3 Nd3 c2 Nd7 Nf5 N5b4 Bb7 Bg2 Qc7 Bf3 Rad8 Bg4 Rh6 Rg2 Rg6 g8Q+ Ke7 e6 Ng7 Nf8 Kf6 e7 Ne6 e8B Qd7 Qe1 Ba8 Be3 c1R Bf2 Bb7 Bg3 f3+ Ke3 f2 Ke2 f1R e5+ Ke7 Rf2 Bh1 Rh2 Qb7 Ba4 Qd7 Ke3 Rb1 Rc2 Rc1 Ke2 Rb1 Qc3 Rfc1 Qe1 Ng7 Nf2 Qa7 Qc4 Qd7 Qd3 Kf7 Nh7 Ke7 Qdd2 Kf7 Bf3 Ke6 d5+ Kf5 Nfd3 Ne6 Bg4+ Ke4 Nf8
3nNQ2/Bq6/r1rp1RnK/PP1Pb3/1P1NQ2R/rbN3qR/4b3/2kq1n2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 gxh4 Bc4 b5 Bb3 a4 c4 axb3 cxb5 Ra4 Nh3 Ra6 Ng1 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Kd4 g4 Kd3 f4 e5+ f6 c5 a4 h5 a5 c4 f5 e4 Ne2 e3 Re1 c3 Rh1 h3 Ba3 c2 Rf1 c1R Re1 b2 Nd4 h2 Rf1 h1Q Qa4 h4 Ra2 e2 Qd1 e1Q Ne6 h3 Nd4 h2 Rf4 Qg3 Nc3 b1B Qe1 Bg7 Bb2 Nc6 Ra3 Nge7 f7 Ng6+ f6 Bc2 f8R Bb3 Re4 Qb6 f7 d6 Rf4 Be5 Qe4+ Kc4 Rf6 Rh3 Rh8 Ra6 f8Q Qd1 Rh4 h1N Kh6 Qb7 g5 Bg4 Ba1 Nd8 Bb2 Nf4 g6 Be2 g7 Ng6 g8N Rc2 Rf4 Rc1 Nf6 Rc2 Ne8 Rc1 Qg2 Kd3 Rf6 Rc2 Nb1 Rcc6 Nc3 Qge1 Ba1 Ng3 Qd5 Nf1 Qe4+ Kc4 Bb2 Qg3 Na4 Ba2 Ba1 Qh2 Nc2+ Bd4 Raf3 Qg2 d3+ Kb3 Re3 Be5 Bd4 Qf2 Ba7 Qfe1 d4+ Qc3 Nc5+ Kb2 d5 Kc1 Na4 Qce1 Rg3 Qf2 Nd4 Qh2 Rg5 Ra3 Rg3 Bb3 Rgh3 Qg3 Nc3
b3B1rb/k1N2n2/2PQ1nQ1/3qBR2/r3bPp1/1n1RrPPQ/7b/5KbB b - - 0 1 legal: proof: b4 a5 d4 axb4 e3 h5 Nc3 c5 dxc5 f5 Ne4 h4 Ng3 f4 exf4 Nc6 Nf5 Nb8 g3 h3 Nh4 Ra7 Ng2 hxg2 Nf3 Ra6 Ng1 Ra8 c4 b5 h4 d5 a4 Kd7 a5 Kc6 a6 e5 f3 g5 a7 Kb7 h5 d4 h6 b3 h7 d3 Nh3 g1B Ra3 b2 Ra4 b1N Rh2 b4 Bb2 e4 Re2 b3 Bd4 e3 Rb2 g4 Rf2 b2 Qd2 e2 Rh2 Nc6 Be5 Nf6 Ng5 Bg7 Rh5 Rg8 h8Q Qd5 Ra3 Bh2 Bg2 Nd8 Bh1 Nf7 c6+ Kb6 c7 Bb7 Kf2 e1B+ Kf1 Bf2 c8B Bfg1 Bd7 Rae8 Ne6 Ba8 Qh6 Bh8 c5+ Kb7 Qc2 d2 Qcg6 d1B Re3 Bc2 Nc7 Be4 c6+ Kb6 Rf5 Nd2+ Kg2 b1R Qh3 Re6 Rd3 Rb4 Be8 Nb3 Kf1 Ra4 Bc3 Bb7 a8Q Re5 Qd8 Ka7 Qd6 Ba8 Rd4 Bc2 Rd2 Re3 Be5 Be4 Rd3
1R1Q1rr1/n5nn/2N1k1rP/1pN4r/1P1QbRq1/2b2PRr/K1P5/Q1B4b b - - 0 1 legal: proof: e4 a5 b4 h5 g4 a4 gxh5 f5 exf5 c5 d4 cxd4 Bc4 Ra5 Bd5 Ra8 Bb3 axb3 Kd2 Kf7 a4 e5 h4 b5 a5 d5 h6 g5 h7 d3 Kc3 g4 Kb2 e4 h5 d4 f6 g3 h6 e3 a6 g2 a7 e2 Rh2 e1R Ka3 d2 Rh5 d3 Re5 b2 Ka2 Nc6 Qe2 d1N Re8 d2 Ka3 Qd7 Ka2 Bb7 Nh3 g1R Qe4 Bg7 Rd8 Qg4 Rd5 Re3 Rd3 Rf8 a8R Na7 Nc3 b1R Qd4 Ke6 f7 Nf6 Na4 Bh1 Rb8 Rhg8 h8Q Nh7 Rc3 Rg2 Ng1 Rh3 Rg3 Ne3 Nf3 d1B Ne5 Bf3 Nc6 Be4 f3 Bf6 Qg7 Nf5 Qh8 Rc8 f8Q Ng7 Qfd8 Rh5 Qc7 Rcf8 Nc5+ Kf5 Qcd6 Rgh2 Qd8 R2h3 Be3 Rg1 Rd1 Rg2 Bc1 Be5 Qa1 Bc3 Rd7 Ne6 Qd4 Ng7 Na4 Ke6 Rf7 Rgh2 Rf4 Rg5 Qb1 Rg6 Qb2 Rh5 Qa1 R2h3 Nc5+
N6b/r3bPQ1/pq1nB1Kb/1kQ3n1/1rbPn2r/1bQ3P1/P1R1R3/1R4B1 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 Na3 g5 Nc4 f4 Ne3 fxe3 hxg5 Bd7 Ne2 Bg4 Ng1 Bc8 Ke2 Kd7 c4 Kc6 f4 b5 d3 h5 g6 e5 g7 b4 f5 b3 g3 b2 f6 b1R f7 h4 Bh3 a6 Ba3 Nh6 g8Q Nd7 Qc2 Nf5 Bb4 Qb6 Nf3 Nd6 Rh2 Be7 Qh7 Nf6 Qc1 Be6 Rf2 Ra7 Ba3 Rb4 Qg7 Rh7 Bg4 h3 Rb1 h2 Ng5 h1B Qc3 Rh4 Bb2 Bd5 Ne6 Bg2 Nc7 Bf1+ Ke1 e2 Kd2 e1B+ Ke3 Be6 Re2 Bd5 Na8 Bd2+ Kf2 Bg5 Be6 Bh6 Bc1 Bd8 Be3 Be7 Reb2 Be2 Rc2 Bd1 Re2 Ba4 Kg2 Bb3 Bg1 e3+ Kf1 Nfe4 Kg2 Rh3 Kf3 Rh2 Kg4 Rh3 Reb2 e2 Rd2 e1N Re2 Nf3 d4 Bf6 Qe1 Nfg5 Qc3 Nc8 Kf5 Ncd6+ Kg6 Rh4 Qh7 Bh8 Qg8 Nf6 Qg7 e4 Qd2 e3 Qc3 Kb7 c6+ Kb8 c5 Bdc4 c7+ Kb7 c8R Nfe4 Re8 Kc6 Rc2 Kb5 c6 e2 c7 e1B c8Q Bd2 Re7 Bc1 Re8 Ba3 Qc5+ Ka4 Qd2 Nc3 Bf2 Rb5 Bd7 Nb7+ Qd6 Bc5 Bg4 Rb4 Re2 Nce4 Be6 Kb5 Qdf8 Bd6 Bg1 Bc5 Qc8 Be7 Qc3 Nbd6 Qc5+
B2B1Qb1/4N1Pb/4Bq1r/nQ1rR3/2P1k2P/3N1pq1/2b2P1b/Knn2qN1 b - - 0 1 illegal: No possible last move, all moves rejected
1RrR4/2Nqb1q1/2p5/2P1N3/b1n1P2b/rNP1Q1q1/2P1RB1b/nQ1k1Kn1 b - - 0 1 illegal: No proof kernel
3N1r1R/NnR3bb/q4b1q/3Qqkp1/2rq1P1Q/2r1R1Pn/PP2BQ2/1K6 b - - 0 1 illegal: No proof kernel
1n1knr2/1b3Q2/3p2bq/1P2qQb1/1qBP2P1/b1nKQ1N1/1B3rP1/1N2R1B1 b - - 0 1 legal: proof: f4 b5 b4 c5 a4 g5 h3 g4 hxg4 e5 Ra3 exf4 Rb3 Qc7 axb5 Bb7 b6 Qd8 b5 Bc8 Rb4 cxb4 e4 a5 Ke2 h5 c4 f5 d3 h4 c5 f3+ Ke3 h3 b7 a4 e5 b3 c6 a3 e6 h2 e7 b2 c7 f4+ Ke4 a2 Qc2 a1B Qd2 f2 Qc3 f3 Na3 b1N Kd4 Nf6 Nc2 Ra2 Qb2 Nc3 Be2 f1Q Nh3 f2 Na3 Qe1 Ng1 f1B Qd2 d6 Kc4 Bh6 Nb1 Bb2 Qe3 Ba3 Bb2 Bg5 Kd4 Rf8 Kc4 Bf5 c8Q Be4 Qf5 Qa5 Kd4 Qg3 Kc4 Qf4 Kd4 Qe5+ Kc4 Nbd7 b8B Bb7 Ba7 Nb8 Bc5 Qe6+ Kd4 Kd7 e8Q+ Kc7 Qf7+ Kd8 Bf3 Ne8 Bd5 Qb4+ Bc4 Be2 Ba7 Bd1 Bc5 Bc2 Ne2 Qe7 Rf1 h1Q Ng3 Qh6 Re1 Qee6 Qef4 Qef6+ Ke3 Qfg7 Kd2 Qgf6 Bg1 Qe5 d4 Bd3 Qe3 Bde4 Qf1 Bg6 Q7f5 Ba8 Kd3 Bb7 Ba1 Re2 Bb2 Rc2 Qff3 Re2 Qd5 Rf2 Qf7
2b2Q2/1nr1P1N1/1r3BBB/1P3p1N/2qqn1Q1/b1bP2n1/1q3Pq1/3K1NkR b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 gxh4 d3 e5 Kd2 e4 Ra2 Nc6 c4 e3+ Kc2 Nb8 cxd5 Nd7 Kb3 Nb8 Rd2 exd2 Kc3 Qf6+ Kc2 Qd8 g4 Kd7 e4 Kd6 b6 Ke5 d6 Kf4 b7 h5 b5 c5 e5 f5 d7 a5 e6 h3 g5 c4 g6 c3 g7 h4 Ne2+ Kf3 Rg1 h2 Rh1 h3 Qe1 a4 Kd1 a3 Ng3 a2 Ne4 a1B Rg1 h1N Rg6 h2 Ba3 Ra7 Be7 Na6 b8B Ng3 Bc7 h1Q Bf4 Nf6 g8Q Qg2 Rh6 Nc5 Rh1 Rc7 Bh6 Nb7 Qg7 Bb2 Qf7 Bg7 Qf8 Ba3 Qe3+ Kg4 Qg5+ Kf3 Qg6 Rh7 Qg5 Rc6 Qh4 Rb6 Qg5 Qc7 d8N Qc4 Qh4 Qh3 Be2+ Kg2 Qg4 Qd4 Nd6 Ne4 Bf6 Bh8 Ne8 Rc7 e7 Qh4 Rh3 Kg1 Ne6 Qc4 Rh2 Qh3 N8g7 Qg2 Nf4 Qd4 Kc2 Qc4 Nfh5 Qd4 Kb3 c2 Rh3 d1Q Nd2 Q1a1 Nf1 c1Q Bd1 Bc5 Rh2 Qf4 Kc2 Qa3 Bf3 Qab2+ Kd1 Ba3 Rh3 Ned6 Bc6 Nde4 Be8 Qc4 Bf7 Qd6 Rh4 Qdd4 Bg6 Qbc3 Bfg5 Qd7 Ne8 Qb2 Rh3 Bf6 Neg7 Bc3 Bf6 Qdd4 Rh1+
1R1Q2r1/q1b4r/3r1R2/b2PRr2/3PKQp1/1P2nNPr/NkN1n3/bB1b4 b - - 0 1 illegal: No extended proof kernel
1R1Br3/5N1r/1N1r1rnQ/Prp2qr1/b1q1P2P/K5bB/n1P2Q1B/3k1N2 b - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 h5 a4 f5 gxf5 Nh6 b4 axb4 Ra3 Ng8 Rg3 Rh7 Rg2 Rh8 Rg4 hxg4 Kd2 Kf7 e4 b5 f4 c5 h4 d5 e6+ Kf6 a5 g5 e7 b3 Kc3 g3 Kb2 g2 e8Q g4 Nc3 d4 Nge2 g1Q Ng3 d3 Ka3 b4+ Ka4 b2 Bd2 b1R Bh3 b3 Bf1 b2 Na2 Qdd4+ Kb3 Bd6 Bc1 d2 Rh2 Ne7 Nb4 Qc4+ Ka4 Rh7 Qe2 d1R Rh3 Bd7+ Ka3 Nbc6 Qf2 Ng6 Nd3 Nb4 Ne5 Ba4 Qc6 Na2 Nf7 Re8 Bg2 Qe1 Nf1 g3 Rh1 Qd2 Bh3 Qdd5 Bd2 g2 Bc3+ Ke7 Be5 g1R Qa6 Rg4 f6+ Ke6 Rg1 Ra1 Rg2 b1R f5+ Kd7 Bg3 Rb5 Bh2 Rg5 Rg3 Kc7 Rb3 Bg3 Qd6+ Kb7 Qf8 Ka6 Qh6 Rab1 Rb4 Rb6 Rb2 Rc6 Rb8 Rbb6 Ne5 Kb5 f7 Rd6 f8B Rb1 f6 Rb4 Nf7 Qf5 Ne5 Rb1 f7 Rf6 Bg7 Rd1 f8N Rdd6 Nf7 Rb7 Kb2 Kb4 Nd7 Rb5 Bf8 Nc3 Be7 Na2 Ka1 Kc3 Nb6 Qd3 Bd8 Qe2 Ne3 Kd2 Nf1+ Kc1 Bg4 Kd1 Bh3 Bb3 Kb2 Ba4+ Ka3 Qc4 Qg2 Rd4 Qg1 Rdd6 Qf2
4r1nK/1k1QP3/pbqb4/1rB1R3/1RbRb3/2QrnN2/P1PQnPB1/6r1 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 hxg4 Nd2 f4 Ne4 Rh6 Ng3 fxg3 Bd2 Rh5 Bc1 Rh8 Kd2 b5 Kc3 g5 Kd4 d5 h4 Kd7 e4 Kc6 e6 g2 Ke5 g3 h5 g4 e7 d4 e8R d3 h6 a6 h7 b4 Be3 d2 Rh2 b3 Re7 b2 Bd4 b1R Rh5 Qd7 Bd3 Kb7 Qe1 d1B Be3 Be2 Rg5 Rb5 Re8 Qc6 Rb1 Bf5 Nf3 g1B Rd8 g2 Rb4 g3 Rdd4 Bh2 Qd2 g1N Bc4 Bg6 Bd5 Bd6+ Ke6 g2 e5 Bgd3 Kf7 Be4 Kg7 Nd7 e6 Ndf6 e7 Rd8 Rh5 Bc4 Re5 Bg6 Be4 Ne2 Bd5 g1R Be4 Nh6 Bd5 Rhe8 h8Q Nhg4 Qh3 Ng8 Kh8 N4h6 Qd7+ Bc7 Ree4 Bd6 Re5 Ng4 Be4 Ka8 Bd5 Bb6 Be4 Qd5 c6 Bf5 c7 Qc6 Bd5 Be4 c8Q+ Bb8 Qf5 Ka7 Qf6 Bd6 Qd7+ Kb8 Rd3 Ka8 Bc5 Ne3 Rd4 Kb8 Be6 Ka8 Bh3 Kb8 Bg2 Ka8 Qdf5 Kb7 Qd7+ Qc7 Qf7 Be6 Rd3 Rc8 Bd4 B6d5 Qdf5 Bb3 Qc4 Qd7 Qg4 Rcc5 Qge6 Qc6 Qcc3 Rd5 Bc5 Bc4 Rd4 Bb3 Rdc4 Rd3 Rd4 Bc4 Qd7+
QNN1K3/4PNp1/2n2qnb/3nPkPb/B1r5/3Q2B1/n2R3P/r3bBqb b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 e5 d4 cxd4 g4 h5 f4 Bd6 fxe5 Be7 Ra3 Bg5 Rg3 Bh6 g5 Bb7 Rg2 Bc8 Rg4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 a5 Kc5 f5 c4 d5 e4 f4 b6 a4 b5 g3 b7 d3 b6 a3 Bd2 f3 Bf4 d2 Qb3 d1B Qd3 f2 Nc3 d4 Nf3 a2 Na4 a1B Kb5 g2 c5 g1Q c6 Ne7 c7 Nbc6 b8N Bb7 Bg3 Bc3 Kc5 Be1 c8B+ Qd7 Kb5 Ng6 Kc5 Ra6 Kb5 Ba8 b7 Ra7 Nb6 Ra1 Kc5 Rf8 Kb5 Rf4 Kc5 Kf7 Kb5 Qd6 Bd7 Qf6 e6+ Ke7 Ne5 Bh5 Nf7 Rg4 Qb3 d3 e5 d2 Qd3 d1N Be8 Rc4 Nc8+ Kf8 Kb6 Nc3 Kc7 Na2 Kd7 Kg8 e7 Kh7 Bh3 f1N Bg2 Ne3 Bf1 Na7 Kd8 Nd5 Ba4 Nc6+ Ke8 Qc5 Rg1 Qe3 Rg2 Qg1 Qe2 Nh4 Qe3 Kg6 Rd2 Kf5 Qd3+ Kg4 Na6 Ng6 b8Q Bb7 Qa7 Ba8 Nb8 Bb7 Qe2+ Kf5 Qa8 Nb6 Qe3 Na7 Rd6 Bh1 Rd8 Nc6 Rd2 Nd5 Qd3+
1b2Rk2/P1r5/1Pb5/rBQPnb1r/5Kp1/bq2BB1N/2nR2P1/Q1Rq3r b - - 0 1 illegal: No proof kernel
1nB3n1/1q2p1q1/rP1P1Pq1/2q1bQ2/b2N2n1/2Q1PN2/R3K2k/2r1BnNB b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 b4 f5 d3 f4 e3 f3 Ra2 Qd6 Re2 fxe2 Kd2 Qd8 f4 Kd7 g4 e1N d6 Ke6 d4 h5 b6 c5 b7 a5 d7 h3 g5 Kf5 b5 h4 b6 h2 g6 h3 g7 c4 d5 a4 d6 a3 Qf3 a2 Qd5+ Kg4 f5 Kg3 Nf3 a1Q Qf7 c3+ Kd1 c2+ Kd2 Nd3 Qe6 Ra6 Nc3 Ne5 Bg2 Ng4 Ke2 Qe8 d8Q Qg6 Qc7 Bd7 Bd2 c1Q Qc5 Ba4 Be1+ Nf2 Rg1 h1Q Qb3 h2 Qba3 Nh6 g8B Bg7 Be6 Ng8 Bc8 Be5 Qab4 Rh4 f6 Rc4 Qcb5 Qab1 Qd7 Qg7 Qf5 Qe4 Qc5 Qa3 Qc7 Qc5 Rf1 Qg1 Qc6 h1N Qc7 Nd7 b8N Qb7 Nc6 Nb8 Ncd4 Qg6 Nd5 Rc1 Nf4 Qg7 Nh3 Qg6 Bb4 Ng4 Rf2 Qg7 Be1 Qg6 Nd2 Kh2 Be4+ Qg2 Ng1 Qb4 Qc3 Ng3+ Kd3 Nf1 N2f3+ Kh1 Rc2 Qc5 Ra2 Qg3 Ke2 Qg7 Nh4+ Kh2 Bh1 Qgg2+ Bf2 Qge4 Be1 Qb1 Qg5 Qbh7 Qf5 Qhg6 Nhf3+
1nBQ1q1q/3pR3/nK1bN3/r1P2nkb/bP1Qr3/bn1P3P/2R5/N2R3N b - - 0 1 legal: proof: e4 b5 g4 f5 exf5 h5 b3 hxg4 Ba3 b4 Bb2 c5 a3 c4 axb4 c3 b5 cxb2 Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Kd5 a5 c4 g5 f4 e4 b6 g3 b7 a4 h3 a3 d3 a2 Be2 g4 Nd2 b1B Ndf3 e3 Ne1 g2 Bf3 e2 Nc2 e1N Ne2 g1B Ng3 Nh6 Rh2 Bgc5 Nh1 g3 Qd2 g2 Qf2 Bfd6 Qd4+ Be5 Be4 Ba3 c5 g1Q Kc4 Qe7 Kb5 Qgg7 Kb6 Re8 Bd5 Qh8 b4 Ra5 Rd2 Na6 b8Q Bb7 Qd8 Nf3 Rf2 Bc6 Rh2 Ba4 Bb7 Nd2 Bc8 Nf3 Qc4 Bb8 Qd4+ Ne5 Rd2 Bd6 Rf2 Kf7 f6 Kg6 f5+ Kg5 f7 Nc6 f8R Ncb8 f6 Nf5 Rf7 Qef8 Rh2 Re4 Re7 Bg3 f7 Bd6 Ne3 Bbc2 Rd1 Bcb3 Nc2 a1N Rf2 Bd5 Rh2 Nb3 Na1 Re3 Rc2 Bf3 Ka7 Bh5 Kb6 Qfg7 f8N Re4 Ng6 Qgg8 Nf4 Qf8 Ne6+
2rB2Q1/1r2Nnnp/1q1q3Q/kbR5/1rRP4/2rQ3B/P2P3P/R3nnbK b - - 0 1 legal: proof: e4 a5 b4 axb4 f4 g5 e5 d5 c3 d4 cxd4 f6 Nc3 Qd7 Nd5 Qd6 exf6 Qd7 f5 Qd8 Nf4 gxf4 Kf2 Kd7 g4 Kc6 Kg2 Kb6 f7 c5 f6 e5 g5 f3+ Kf2 e4 g6 b3 g7 c4 Bg2 e3+ Kg3 e2 Rb1 e1N Ne2 c3 Bb2 c2 Ra1 c1R Nc3 f2 Na4+ Ka5 Bf1 b5 Qc2 b4 Nc3 Ne7 g8R Nbc6 Bb5 f1N+ Kf2 Ne5 Kg1 Bd7 Nd5 Nf5 Qe4 Bh6 f8Q Rac8 f7 Ng7 Qe2 R1c3 Ba3 b2 Qd3 b1Q Ne7 b3 Bc6 b2 Bg2 Rb8 Bh3 Bb5 Qe8 Qd6 f8Q Nf7 Bc5 Ne6 Rg5 Ng7 Rd5 Rb7 Bb6+ Kb4 Qc6 Rg8 Qa8 Rc8 Bd8 Bf4 Rc5 Bg3 Qe3 Qbg6 Qh6 b1R Qf3 Qb6 Qb8 Ka5 Qd3 Rb4 Rc4 Bh4+ Qbg3 Qd6 Qgg6 Ne8 Qg8 Ng7 Rc5 Nf3+ Kg2 Bf2 Rg1 Be3 Kh1 Ne1 Rgg5 Bf2 Rc4 Bg1 Rgc5
qQ6/PRp1nn2/QNP1nP2/4q2P/b1KpQ3/3R1N1r/2R1rqkr/b6B b - - 0 1 illegal: No possible last move
Q2KNB1k/1Q4nr/nPp1B3/r1Pb3r/1b1q3R/1B1P3R/1pP5/1qqQb3 b - - 0 1 illegal: No proof kernel
2q2Q1R/qqr2Qb1/1pnP1pnB/B2PN3/1r3P2/2K4n/1RP1Q1k1/bB3b2 b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bh3 b6 Bc8 h4 gxh4 b4 Be6 b7 Nh6 b5 Bh3 b6 Bg7 Na3 Bf8 Nc4 Na6 b8B Ng8 b7 Bc8 Nb6 cxb6 g4 Kd7 d4 e5 Kd2 h5 f4 e4 g5 h3 d6 Ke6 g6 Kd5 g7 e3+ Kc3 Ke4 Nf3 h4 Rg1 h2 Bb2 h1N Ra4 h3 Bc1 h2 Ra3 e2 Qd2 e1Q Kb2 f6 Bg2 Bh3 Qd1 Qa5 Be3 Rh7 Qd2 Nf2 Rh1 Ne7 g8Q Nb4 Qe2 Qc8 Bc7 Ng6 Bd8 a6 Rb1 h1Q Be7 Qa4 Rd3 a5 Qa2 Bh6 Bf8 Qad7 Qg8 a4 Rb3 Re7 Qf7 Ra6 Rc3 a3+ Kb3 a2 Rb2 a1B Ne5+ Kf5 Bg7 Ra4 Bd5 Bf1 Bd2 Qe4 Rg3 Qh1 Rg4 Nh3 Rh4 Qdc7 Bc3 Q7b8 Bd2 Qa7 Bc4 Qhc6 d5 Q6c7 Bc3 Nc6 Ba5 Rb4+ Kc3 Rd7 Ba2 Qc7b8 Qa6 Ke4 Bb1 Ke3 Rh5 Kf2 Qe2+ Kg1 Bh8 Bf8 Bg7 Kh1 Rh7 Kg1 Bh6 Bg7 Rh8 Qba8 Qe1 Kg2 Qd1 Qf8 b8Q Q8b7 Qd8 Rc7 Qde7 Qfa8 Qef8 Qac8 Qe2+
4Q1K1/2R1pPN1/2r1R3/2PbP2n/n1p1P1nk/qr5q/1QbB2Bb/4RrB1 b - - 0 1 illegal: No proof kernel
1KQ4b/p1NPq1rP/2N1RnNk/P1B4P/3b2r1/3bQr2/1pB1B3/q1n1n3 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 a4 f5 g4 h5 Ra3 f4 Re3 fxe3 gxh5 Qd4 Ba3 Qd3 Bc1 Qd8 Ke2 Kf7 f4 e5 h4 g5 d4 Kg7 c4 b5 h6+ Kh7 a5 b4 d5 b3 c6 b2 d6 g4 h5 g3 c7 g2 f5 Ne7 c5 Nbc6 f6 Qd7 f7 Nd5 Nc3 Ncb4 c6 Bg7 Qd3 Rg8 Nb5 Ba6 c8Q Nf6 c7 Qe7 Nf3 g1R Nfd4 Na2 Nc6 Bh8 d7 R8g4 f8N+ Kg8 h7+ Kg7 Bh3 Kh6 Ng6 R1g3 Rd1 Rf3 Re1 Rb8 Bd2 Ra8 Bb4 Nc1+ Kd1 e2+ Kc2 e3 Kc3 e4 Kd4 Rb8 Bc5 Rb6 Qb3 Rb8 Qe6 Ra8 Ke5 Rb8 Qb7 Rg8 c8B Rg7 Nc7 Bd3 Qb8 Qf7 Ba6 Qe7 Rd1 e1Q Qc8 Qf1 Re1 e2 Bg2 e3 Bh3 Rgf4 Bf5 Rg4 Be4 Bb5 Bc2 Bd3 Rd1 e1B Bb5 Bd2 Re1 e2 Ba6 Qf7 Kd6 Bc3 Qe5 Bd4 Qe3+ Rg5 Nb5 Qf8+ Kc7 Qe7 Kb8 Qg1 Nc7 Qh1 Rg1 e1N Rg4 Qg1 Re4 Qf1 Qe2 Rg4 Re6 Qg2 Qe5 Qd2 Qe2 Qb4+ Bb5 Qa4 Qf2 Qa1 Qg1 Be4 Be2 Bd3 Qe3+
B2bN2Q/2r1p3/2nB1R1n/qPQp3k/B3q3/1N1PP1K1/Nq1P2b1/rr4b1 b - - 0 2 legal: proof: f4 b5 g4 g5 b4 c6 a3 Qa5 a4 Qa6 Ra3 h6 Rg3 gxf4 axb5 h5 g5 Qa3 Rg4 Qd3 cxd3 hxg4 Kf2 a5 h4 d5 g6 f5 h5 g3+ Kg2 c5 h6 a4 g7 Kf7 h7 Kg6 b6 c4 b5 c3 b7 a3 e3 c2 Bb2 c1Q Bd4 f3+ Kh3 g2 Bc3 a2 Bb2 a1Q Qc2 f2 Qc5 Nc6 b8N f4+ Nd7 f3 Ba3 Kh5 Be2 f1Q Nc3 Qcb2 Na2 Nh6 g8B Bg7 Bd1 Bd4 Ba4 f2 Nf3 g1B+ Kg3+ Qh3+ Kf4 f1R Be6 Rd8 h8Q Rb1 Rh2 Ra7 Rf2 Qf5+ Kg3 Rc7 Bb4 Bc3 Nd4 Qe4 Rf6 Re8 Ba3 Ba5 Nb3 Rf8 Qb6 Re8 Bd6 Rd8 Qc5 Rf8 Rg6 Rff1 Rf6 Bb6 Ne5 Ba5 Nf7 Rfd1 Bd7 Bb6 Be8 Bh3 Bd7 Bg2 Bc8 Rdc1 Bb7 Rd1 Ba8 Re1 Nac1 Qaa3 Na2 Qab4 Be5 Qa5 Nd6 Ra1 Ne8 Reb1 Nac1 Rd7 Na2 Bd8 Bf4 Rc7 Bd6
2b3n1/2kQqNq1/bn2pPN1/3p4/P2N2B1/2rr4/1QnPPr2/3KRRqQ b - - 0 2 legal: proof: g4 f5 gxf5 a5 b4 axb4 c3 b3 Ba3 Kf7 Bc5 Ke8 Ba7 b5 Bb6 e6 Ba5 b2 Bb4 h6 Bc5 b4 Be7 b3 Bg5 Bb4 cxb4 hxg5 f4 c5 h4 d5 a4 Kd7 f6 c4 f7 c3 f8N+ Kc7 b5 g4 f5 g5 h5 g3 h6 c2 h7 c1R Rh3 g2 Na3 b1B Rf3 g4 Nc4 b2 Ng6 g3 Nd6 Bd3 Nf7 b1N f6 Nd7 Rf4 Nb6 Nf3 g1Q Nd4 Rc3 Qc2 g2 Kd1 Rb8 Qb2 Na3 Rf5 Nh6 Rb1 Rg8 h8Q Nc2 Rc1 Rg7 Qh7 Ng8 Qh1 Qe7 Rf2 Qh2 Rf4 g1Q Rb1 Qe3 Bh3 Qhg1+ Rf1 Qh6 Bg4 Rh7 Rc1 Qg7 Re1 Rh2 Rf1 Rf2 Rb1 Nc4 b6+ Kd7 b7 Nb6 Re1 Ba6 Ra1 Rd3 Rc1 Ra8 b8Q Ra7 Qbh2 Rc7 Qh7 Rc4 Ra1 Kc7 Ra3 Rg3 Rf3 Rc3 Rf4 Rgd3 Rf3 Rh2 Rff1 Rf2 Qh8 Nh6 Qe8 Ng8 Qd7+
q3n1N1/n1pqpbkn/Q4B2/1Nr2Q1r/7P/bP3PrQ/BBP5/b1K3R1 b - - 0 1 illegal: No possible last move, all moves rejected
6BR/1K1p4/P2P2n1/bP1nb2n/b1n1r1kQ/p2B1r2/1R1P3n/1Q1qN1BQ b - - 0 1 illegal: No proof kernel
1rr5/1p3QBK/1pP3n1/1P2rbb1/6qk/RR1RPbr1/2Q1NPr1/2N1n1Q1 b - - 0 1 illegal: No proof kernel
q2rnb1R/3QBr2/2br4/1N1P1b2/R2Rbnp1/3P1N2/2p1PKPQ/b1kN4 b - - 0 1 illegal: No proof kernel forced: bxLB
5B2/6rQ/pnN1Qrr1/P3Pb2/3bNQ1b/k1PrnB2/2Pqn1p1/1K1R2B1 b - - 0 1 legal: proof: d4 c5 a4 h5 g4 hxg4 Bf4 e5 dxe5 f5 Ra3 c4 Rg3 c3 Bc1 f4 bxc3 fxg3 Kd2 d5 h4 Kd7 e4 Kc6 f4 g5 h5 b5 a5 g2 h6 b4 h7 g3 e6 a6 f5 d4 e5 d3 f6 Kb5 e7 Ka4 e8Q+ Nd7 f7 b3 Qe6 b2 Be2 g4 Nh3 g1N Nf2 g2 Qf6 g3 Bf3 Nh6 Qe7 Ne2 Qf6 g1B Ng4 g2 Bb7 Nb6 Qf4+ Bd4 Qdf1 Nf5 Ne3 Be7 f8B Ra7 Bf3 Rg8 h8Q Rg6 Qh7 Bh4 Nd5 Ne3 Ne7 Bf5 Nc6 Rag7 Qf2 Qd5 Rd1 Qd6 Q2g3 Qd7 Qh3 Qd5 Na3 b1R Nc4 Rb5 Nd6 Rc5 Nb4 Rc6 Ne4 Rcf6 Nc6 Qd7 Bca3 Qd6 Bc5 Qd8 Nb4 Ka3 Qhg4 Ng1 Kc1 d2+ Kb1 Ne2 Rc1 d1R Nc6+ Ka4 Qh3 Rd3 Rd1 Qd7 Bcd6 Qd8 Bb8 Qd6 Ba7 Ka3 Qhg4 Bc8 Qe6 Bd7 Qc4 Bf5 Qe6 Bc5 Bh5 Na4 Qe8 Rd4 Bb8 Nc4 Qhh6 Qd8 Bbd6 Nab6 Qe6 Rd2 Bde7 Qd3 Qh7 Qe3 Bf3 Rd3 Qg3 Qd2 Qh2 Rff7 Bg5 Rff6 Bf4 Ne3 Bg3 Rg4 Bf2 Rg3 Bg1 R3g6 Nd6 Bd4 Qf4 Rd7 Ne4+ Re7 Nd6 Reg7 Ne4+
2rk1B1r/2P2nR1/N1PpQnQ1/1Q2N2b/1bPP2p1/8/1q2R1Nn/1rnK2b1 b - - 0 1 illegal: Other
1k3R2/2pbr1bn/nr2P3/1rN4N/4BpnK/1QPRP3/Pb2qR2/3nNQ2 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 h6 g6 Qe7 g7 Qd8 g4 Bd6 g5 Be7 g6 Bf8 Bg5 hxg5 Kf2 f5 Kg3 d5 h4 Kd7 h5 b5 h6 d4 h7 b3 Nf3 b2 Ne1 f4+ Kh3 d3 Kg4 b4 Bh3 b3 Kh5+ g4 Nc3 b1N Qc1 b2 Qe3 d2 Rf1 d1N Rh1 Na3 Nd5 b1R Nc3 Nc4 Qf2 Rb5 Na4 Na6 Rh2 Qe8 Qf1 Rab8 Bg2 g3 Kh4 Nf6 g8Q R8b6 g7 Nce3 Be4 g2 Qb3 g1B g8N Bg7 Rf2 Neg4 Nc5+ Kd8 Rc1 Bd7 e6 Kc8 Rb1 Kb8 Rb2 Qf7 Rf3 Qe8 Rd3 Bd4 e3 Be5 Rb1 Ba1 c3 Bb2 Rc1 Qc8 Rc2 Qb7 Rcd2 Qd5 Rf2 Qc4 Ne7 Rd8 h8R Nh7 Ng8 Rc8 Nf6 Re8 Rd4 Qe2 Rd3 Rc6 Rf8 Rcb6 Rf7 Re7 Nh5 Ra5 Rf6 Rab5 Rf8+
1Qr5/kbQ1BpKn/1R3Pb1/Pp1QRrqP/n6b/NR1q3b/7P/2b4N b - - 0 1 illegal: No possible last move
6K1/b2B1Pnp/q1N1NpPb/rkP3Q1/2RBq3/1B5b/bNQ2Pb1/2rn4 b - - 0 1 illegal: No proof kernel
2qr2bN/1N1P1pq1/1K1b2r1/4RBPp/k1PQ3P/b1rb2Q1/1Bn2B1n/6Q1 b - - 0 1 legal: proof: e4 b5 b4 c5 f4 d5 a4 g5 fxg5 dxe4 Ra3 Kd7 Rb3 Bb7 axb5 Bc8 b6 Ke8 b5 Qd7 Rb2 Qd8 Rb4 cxb4 Kf2 Kd7 Ke3 e5 h4 a5 g4 h5 d4 b3 d5 a4 c3 b2 g6 a3 g5 a2 d6 a1Q g7 Nc6 b7 Nb4 b8Q Ra6 b6 Kc6 b7 Nh6 g8Q Bf5 d7 Bh7 Nh3 Bd6 Bc4 Qc8 Nd2 b1B Be6 Kb5 Bb2 Bd3 Nb3 Ka4 Qg7 Rd8 c4 Bg8 Bf5 Rc6 Re1 Nc2+ Kf2 Ra6 Nf4 e3+ Kf3 e2 Na5 Ba3 Ng6 Ng4 Nh8 e4+ Kf4 e3 Qd4 Nh2 Ke5 Rc6 Kd5 Rg6 Qg3 Bd6 b8B Ba3 Rh1 e1B Ba7 e2 Nb7 Beb4 Q1g1 e1R Bb6 Bd6 Bc5 Qa8 Kc6 Qc8+ Kb6 Rb1 Qdf4 Rc1 Bf2 Nb4 Qd4 Rc3 Qd1+ Nc2 Re1 Qc1 Re4 Qf4 Qb1 Qe5 Qbg1 Qg7 Re5
8/Rn1bq3/RrBP3K/b2qB1pb/6P1/Pp1RQ1n1/2kr1BP1/2N1bQn1 b - - 0 1 illegal: No proof kernel
1q3Q2/rp2bP1N/4n2P/2Rnp2B/kQ2P2B/2Pqb1Rb/2q5/Bqr2R1K b - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 Nc3 c5 dxc5 Ra4 Ne4 f5 gxf5 Ra8 Nf6+ Kf7 Ng4 hxg4 Bg5 Ke8 Bd2 Ra7 Bc1 Ra8 a4 g5 e4 e5 f4 d5 Kf2 Kd7 Kg2 Kc6 h4 g3 h5 g4 f6 b3 f7 b2 f5 b1Q a5 d4 a6 d3 a7 Kb5 f6 Rh7 h6 Nd7 c3 Rg7 c6 Ne7 c7 Nc5 Rh3 Qc2+ Kh1 Ne6 Nf3 Nd5 Be2 Be7 f8B Rf7 Ba3 Ka4 Qb1 d2 Ng5 Bd7 Bf3 Qb8 c8R Rg7 f7 g2+ Kh2 d1Q Rg3 g1B+ Kh1 Qcd3 Nh7 Q1c2 Rc5 Be3 Qb6 Rg6 Rf1 Rg5 Bb2 Bc8 Rgg1 g3 Bh5 Bd7 Ba1 g2+ Kh2 Rf5 Bg7 Rf2 Bf6 Rd2 Bh4 Rd1 Rf3 Rc1 Rgf1 Qb1 Rg3 g1Q+ Kh3 Qf2 Qb2 Qe1 Kh2 Qed2+ Kh1 Q2c2 Qb6 Nec7 Qb2 Bh3 Qb6 Ne6 Qb2 Qd6 Qb6 Rg8 Qb2 Qb8 Qb6 Rc8 Qd6 Rc6 a8Q+ Ra6 Qb6 Ra7 Qd6 Qc7 Qf8 Qd8 Qb6 Qb8 Qb4+
7b/1Nrp1rPr/1KnBP3/3bb1Q1/pBRQ3n/PqN1P1q1/5k2/3B2Qr b - - 0 1 illegal: No possible last move
1kbrB1K1/1NbPN3/2PqR3/BPb3Q1/1b2npp1/2n3qQ/3NQ1P1/1r3n2 b - - 0 1 illegal: No proof kernel
QqqR4/5Q2/N1n2bR1/1Bq2N2/PR3pb1/5kP1/KnNnPPp1/1rrn4 b - - 0 1 illegal: Other
1k3N1R/q1n1PP2/B2Q1p1B/nbr3b1/3b1nQ1/5PN1/3pqr1P/NBn4K b - - 0 1 illegal: No proof kernel
Q1rQ4/3pnkp1/1P3P2/N6P/BnNP2bR/2q2q2/q1rQrb1r/R4KN1 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 a4 hxg4 Ba3 Bb7 axb5 Na6 b6 Bc8 b5 Nb8 Bb4 cxb4 f4 a5 c4 e5 h4 g3 d3 g2 c5 a4 b7 e4 b6 b3 c6 a3 f6 e3 c7 b2 f5 e2 Qc1 a2 Qd2 Kf7 Qa5 Ne7 Na3 b1Q+ Kf2 e1R Qe5 Nbc6 b8N Bb7 c8Q Nb4 Qd4 Bf3 Nc6 Bg4 Na5 Rh6 Qc7 Rc8 N3c4 Qb3 Qb7 Qc7 Qa8 Qb7 Qb2 Qc3 Qd2 Re5 Be2 Qf3+ Ke1 Rec5 Bd1 R5c7 Ba4 Rh5 Rb1 a1Q Rh2 Qa2 Ra1 Ng8 Rh1 Bc5 Rh3 Rh8 h5 Ne7 Rh1 Rhe8 Rh4 Qh3 Nf3 g1R+ Ke2 Bf2 d4 Rg2 Kf1 Qh1+ Ng1 Rh2 Re1 Kf8 f7 Qhf3 Rd1 Ng8 Rb1 Re2 Ra1 Ke7 f6+ Ke6 f8Q Ne7 Qd8 Kf7 Qa7 Qce3 Nb2 Rc2 Nbc4 Qc3 Qa8
QnRKn3/qRr4P/B1Q1Q1bk/p3P3/1P1b3B/8/P3R2p/1Nqr1rnr b - - 0 1 illegal: No proof kernel
2RBr2q/p2B3p/PnB1QPNq/8/2P3b1/1QK1b1NP/k6n/n2Nnrq1 b - - 0 2 legal: proof: d4 e5 b4 c5 bxc5 f6 dxe5 f5 e4 fxe4 a4 g5 f4 Qb6 f5 Qd8 Ra3 Qe7 Rf3 Qd8 Rf4 gxf4 Kd2 Kf7 g4 d5 c6 b5 h3 e3+ Kc3 d4+ Kd3 b4 c7 b3 a5 b2 a6 e2 c3 e1N+ Kd2 f3 g5 d3 Bg2 f2 Qa4 f1N+ Kd1 d2 Qc2 Nd7 Bc6 Nc5 Ne2 Nf6 Qb3+ Nd5 Ng3 Nh2 e6+ Ke7 g6 Kd6 c4 Nb6 e7 Bh6 e8B Be3 g7 Rf8 Nc3 b1Q g8Q Ke5 Rf1 Kd4 Qe6 Bd7 Qc2 Nb3 c8N Na1 Qb3 Qe4 Ba3 Qeh4 Ne7 Qh6 Ng6 Qf6 Ke2 Qh8 Nd1 Rd8 Rf3 Bc8 Bed7 Rde8 Be7 Rf7 Bh4 Kc5 Qd3 Kb4 Bd8 Rf6 Qb1+ Ka3 Qd3+ Ka2 Qc3 Ng2 Kd3 Rff8 Qb4 Rf6 Kc3 Ne1 Nb2 d1Q Rf1 Qf3 Nd1 Qh1 Rf3 Qg1 Qb5 Rf7+ f6 Rfe7 Rf5 Rg7 Rc5 Rge7 Qg8 Re5 Qe6 Rf5 Be4 Rf4 Rc7 Rf1 Bec6 Bb7 Rc8 Ba8 Bg2 Bf3 Bh1 Be2 Bhc6 Bg4 Qb3+
b3q3/k3pb2/b1QR1b1P/NQr2P2/2r3rR/Pq1QPN2/1n2pN1K/4n1B1 b - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 f5 b4 axb4 e3 h5 gxh5 f4 Ke2 f3+ Kd3 Nh6 Be2 fxe2 Kc2 Ng8 Kd3 Kd7 Ke4 c5 Kf3 Kc7 Kg3 Kb6 h4 g5 d4 b3 f4 g4 f5 b2 a3 c4 d6 c3 h6 c2 h5 Nd7 h7 Ra4 d5 Ngf6 h6 Qe8 Qd2 Nh5+ Kh2 g3+ Kh3 g2 Ra2 Nf4+ Kg3 Nc5 d7 Nfd3 d8N Rc4 d6 Bg7 d7 Bf6 Kh3 Ka7 Qc3 b5 Qe5 b4 Nc3 b1B Kh2 b3 Bb2 c1Q Nd1 Qc2 Nf2 Na4 Nf3 g1R Nb7 Ne1 d8Q Rgg4 Na5 Ba6 Qd3 Qd1 Bc3 b2 Qb5 Qb3 Be5 Bc2 Qc6 b1B Bd6 Rf8 h8Q Nb2 Qg8 Bd1 Qgd5 Rc5 Qdb5 Be4 Qdd3 Bc2 Bg3 Bd5 Ra1 Bf7 Rd1 Rh8 Kh3 Rgc4 Bh2 Rg8 Bg1 Rgg4 Kh2 Bb1 Qc3 Be4 Rd6 Bed5 Qd3 Be4 Qc8 Ba8 Qcc6 Rh4+ Kg3 Rhf4 Rh4 Rg4+ Kh2
2b1rQN1/1b1Pn3/b3qp2/1kPB1P1K/NR4RP/b2n4/N1R1p3/1rb1b1Q1 b - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 h5 g4 d5 gxh5 dxe4 Ba3 Bh3 Bb4 cxb4 Ne2 Bd7 Ng1 Bc8 Ke2 Kd7 c4 Kc6 f4 b5 h4 g5 a4 e5 d4 g4 f5 g3 d5+ Kc5 a6 f6 h6 b3 a5 e3 Kf3 g2 Kg4 e4 a7 b2 a6 b4 d6 e2 d7 e1B h7 e3 Ne2 g1B Ra2 b3 Nc1 e2 Bg2 Qe7 Nc3 b1B Kh5 b2 Bd5 Be3 Rg1 Nc6 Rg4 Rb8 a8Q Ne5 a7 Be4 Na4+ Kb4 Qd4 b1B Rc2 Qe6 Na2+ Ka5 Qd1 Ba3 c5 Bec1 Qd4 Bg2 Qg1 Ne7 Rb4 Re8 h8N Rb5 Nf7 Nd3 Nh6 Rb8 Rg4 Kb5 Ng8 Rb6 Qb8 Bf3 a8R Bg2 Bb3 Bgb7 Qd6 Ba6 Rb8 Bab7 Nb4 Ba2 Bd5 Bc4 Na2 Ka6 Qf4 Rb1 Qh6 Ka5 Qf8 Bca6 Rd4 Ba8 Rbb4 Ba8b7 Rbc4 Kb5 Rg4 Rb4 Rce4 Rb1 Rb4+
N3b1Q1/n2pB1R1/3K3n/1q1P1bRn/1PQ2nPR/4B1P1/r4p1r/b3bB1k b - - 0 1 legal: proof: f4 b5 b4 g5 h3 e5 a3 g4 hxg4 exf4 Nc3 c5 Na4 c4 Nc5 Ke7 a4 Ke8 Nb3 cxb3 axb5 Bg7 Ra4 Bh6 Ra1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 d4 f5+ Kf3 Kd5 e3 h5 b6 b2 b7 b1B c3 h4 Ba6 h3 Rh2 a4 Bb2 a3 Qa4 a2 Qb5+ Bc5 Ne2 Nh6 Bc1 Nc6 b8B Qb6 Bd6 Bb7 Be7 Na7 Rh1 h2 c4+ Ke6+ e4 Bd5 Be3 Qb8 Rg1 h1N Nc3 Ng3 Na4 Nh5 g3 Bd3 Rad1 a1B Rh1 Bb6 c5 Qe5 Kf2 f3 c6 f4 c7 Qg5 e5 Bf5 c8R Bde4 Nc5+ Kd5 e6 Bc2 Na4+ Ke4 Rc6 Bg6 Rc5 Be8 Qc4 Rh7 Rc8 Qb5 Rh4 Bc5 Nb6 Bb1 Kg1 f2+ Kg2 f1N d5+ Bcd4 Re1 f3+ Kf2 Nd2 Reh1 Nf4 Rh5 Bc3 R1h4 Rh8 Rg5 Ba1 Kg1 f2+ Kh2 Kf3 Rg7 Bf7 Rcg8 Bf5 Rg5 Bdc3 R8g7 Ne4 Kh1 Rab8 Na8 Be8 Kh2 Nf6 Kh1 Nd3 Kh2 Nh5 Kh3 Ke2 Kg2 Ke1 Kf3 Kf1 B7c5 Kg1 e7 Be1 Bd6 Bf7 e8Q Ndf4 Qg8 Be8 Be7 Rc8 Qe4 Rc2 Qc4 Be6 Ke4 Ra2 Qc3 Bf5+ Ke5 Qc6 Be2 Qb5 Kd6 Kg2 Bf1+ Kg1 Bh3 Kh1 Bf1+ Nh3 Bb6 Nf6 Qf7 Nhg8 Qc4 Rh7 Rh6 Rh8 Rhg6 Nf4 Be3 Rh2 Rh5 Nh6 Rh4 N6h5 Rg5 Nd3 Qe6 Ndf4 Qg8
3r1kbR/1rpQPn2/P2rb3/1NP1qB1Q/1B1n1b1p/3brP2/6KR/BQ6 b - - 0 1 illegal: No possible last move, all moves rejected
Bn3k1r/2b5/P1QpbPBr/r2pb3/1nrQ3Q/R2qN3/bR1PP1K1/2B5 b - - 0 1 illegal: No proof kernel
kr1R1b2/bb2pP2/Bqp1P1q1/R5N1/rN3Q2/4r1PQ/NKP3rQ/2r4n b - - 0 1 legal: proof: g4 b5 a4 f5 axb5 fxg4 e4 d6 b3 Qd7 e5 Kd8 e6 Ke8 Bb2 Qd8 Bd4 Ba6 Be5 Bc8 Bc3 g5 Ra4 g3 Rc4 g2 Rc5 g4 Nh3 g1B Nf4 g3 Be5 dxe5 Ne2 g2 Rc4 Nc6 Ra4 Nd4 Ra3 Nf5 Ra1 Ng3 hxg3 Bb7 Nc1 Ba6 Ne2 Bc8 f4 h5 d4 a5 Kd2 c6 Kc3 h4 f5 e4 b6 h3 b4 a4 f6 e3 d5 a3 b7 h2 b8N a2 d6 Bf2 b5 g1R b6 Rg2 b7 Ra4 Na6 Nh6 b8Q Bb7 Nf4 e2 Nh3 e1R Kb2 Re3 Nc3 Ng4 Nb4 Rg8 Rg1 h1Q Ng5 Qh6 Ba6 Qg6 Qd2 Rh8 Rad1 a1R Nca2 Rc1 Rgf1 Bg1 Rf5 Nf2 Ra5 Nh1 Qf2 Rg8 Qf4 Rh8 Qa7 Qb6 d7+ Kd8 f7 Rg8 Rd6 Kc7 Qa8 Qc5 Qc8+ Kb6 d8Q+ Ka7 Qe8 Bf2 Rd8 Qb6 Qcd7 Rh8 Qd3 Rg8 Qdf5 Rh8 Qh3 Bg1 Rd2 Rg8 Qd7 Ka8 Rd1 Bf2 Qd2 Rd3 Qde3 Qb5 Qh8 Bh6 Rd2 Rb8 Qe1 Ba7 Qg1 Re3 Qh2 Bf8 Rd8 Qb6 Q8h3
5R2/B3KR1B/r1rN1B2/1n1P4/2RP1nn1/1rb1p1pP/q1bQPkp1/1b3Q2 b - - 0 1 legal: proof: c4 a5 b4 axb4 g4 h5 Nc3 d5 cxd5 Rh7 Ne4 f5 gxf5 Rh8 Nf6+ Kf7 Ng4 hxg4 Bg2 Ke8 Bh3 Na6 Bf1 Nb8 a4 Kd7 f4 Kd6 Kf2 Kc5 Kg3 Kd4 a5 e5 a6 g5 f6 c5 f5 b5 h3 b3 d3 c4 a7 b4 f7 b2 f6 b1B Ra5 c3 Ba3 Ke3 d4 e4 Qc2 b3 Qb2 c2 Rc5 c1N Qc2 b2 Nf3 Qa5 Bg2 Rh6 Rf1 Bf5 Ne5 Nd3 Rc4 Bb4 f8Q Nf4 f7 Bc3 Be7 Qa2 Bf6 Nc6 Qd1 Rc8 a8R Na7 Qb4 Nb5 f8B Rg6 Bc5 Nh6 Ba7 Rc6 Rf8 Bc2 Qa5 b1R Nf7 Rb3 Rf2 Bb1 Qf1 Ra6 Bg7 Rgc6 Bf6 Kd2 Bf3 e3 Nd6 Bfc2 Be4 Nf5+ Kh2 Nh6 Bh7 g3+ Kh1 g2+ Kh2 g4 Kg3 Rcb6 Kh4 g3 Kg5 Ng4 Rf7 Rc6 Rf8 Nd3 Kg6 Nf4+ Kf7 Be4 Ke7 Bec2 Bg5 Nd3 R2f7 Nf4 Qf3 Ke1 Bf6 Nd3 Qf5 Nf4 Qb4 Rba3 Qb2 Kf2 Qc1 Rb3 Qd3 Nc7 Qdd2 Nb5 Qf1+
2Rb4/1NqBB3/1r1P2kn/K2Np1n1/2b1P1pQ/2QPrpPq/1Q1r4/2q3B1 b - - 0 2 legal: proof: c4 b5 f4 g5 a4 d5 axb5 h6 cxd5 h5 Ra4 Bd7 Re4 Be6 b4 Bc8 Re5 gxf4 Rg5 Bh3 Rg7 Bc8 Rg4 hxg4 e4 e5 h4 c5 g3 f5 d6 Kf7 b6 a5 h5 c4 h6 c3 h7 c2 b7 a4 b5 a3 b6 a2 Nh3 a1Q Ng5+ Kg6 Bb5 f3 d3 f4 Kd2 f2 Ne6 f1R Qe1 f3 Nc3 Qa2 Nd5 Nc6 Kc3 Be7 b8Q Nh6 b7 Ra6 Bg5 Qc7 Nd8 Nd4+ Kb4 c1Q Bd7 Qh2 Qc3 Rb6+ Ka5 Qh3 Rh2 Rg1 Rc2 Re1 Bh4 Re3 Bf6 Re8 h8Q Ne6 Bh4 Ng8 Bf6 Ng5 Qh4 Nh6 Nb4 Rh8 Nd5 Bf8 Be7 Bg7 Qa7 Rh7 b8B Ba6 Qb7 Bf6 Ba7 Bc4 Qb8 Rb2+ Qb6 Rh8 Nb7 Rb8 Rf2 Rd2 Re2 Qc6 Qbb2 Qc7+ Bb6 Rd1 Rc2 Rd2 Bf8 Bd8 Be7 Qcf1 Rc1 Qe1 Rc2 Qc1 Qa1 Qc8 Qb4 Bb5 Qab2 Re1 Rc6 Bc4 Nc5 Qb7 Rc8 Qc7 Q4c3 Rb7 Ka4 Rb8 Ba7 Rb3 Nb7 Rb5 Bc5 Rb6 Bg1 Re3 Ka5
3K1b1n/1R2RR1r/2p1bPq1/PPP5/6n1/BpbB3p/1Nn2q2/1kQ1BQ1r b - - 0 1 illegal: No proof kernel
2N1n1b1/2bKpRnr/1pr3Q1/1PR2p2/2rQP3/2k5/P1PqRQB1/1qqB4 b - - 0 2 legal: proof: d4 c5 dxc5 g5 b4 a5 f4 Nf6 fxg5 Ng4 b5 Nf6 Bd2 Ng8 g4 h5 Bb4 axb4 g6 Rh7 Nf3 Rh6 Ng1 Rh8 g5 Qc7 Nd2 Ra5 Ndf3 Ra8 Ne5 Qd8 Ng4 hxg4 Kd2 d5 Ke3 Kd7 Kd4 Ke6 h4 f5 e4 b3 c6 b6 c7 b2 h5 b1R h6 g3 g7 g2 g6 Na6 h7 Nc5 Qe1 Nf6 Nf3 g1Q+ Qf2 Ne8 Nd2 Rb4+ Nc4 Bb7 Be2 Qc1 Bd1 Rc8 g8Q+ Kf6 Rh5 Bh6 g7 Bf4 Rh3 Qd7 Re3 Bc6 Re2 Qd6 Rb1 Bd7 Rb3 Be6 Rc3 Bh2 Qf8+ Bf7 g8B Qdf4 Rg3 Qh6 Rg7 Ne6+ Kd3 Bf4 Nd6 Ke5 Kc3 d4+ Kd3 Bh5 Qf7 Rc4 Qg6 Qb1 Rf7 N6g7 Rf6 Rc6 Bc4 Bg3 Rf8 Qhc1 Rf7 Ra8 c8R Ra4 Bd5 Rac4 Be6 Rf8 h8Q Rg8 Qhh6 Rh8 Qhe3 Rh6 Rc7 Rh7 Nc8 Qcb2 Kd2 d3 Bd5 Q2a1 Qc5 Qab2 Ke3 d2 Qb4 Q2c1 Qa4 R4c5 Bc4 Bh2 Re1 Bg3 Bf1 Rc4 Bg2 Be2 Qb4 Bd3 Kf3 Bf1 Re3 Kd4 Qa4 Bh2 Re2+ Kc3 Ke3 Rf6 Rc5 Bc7 Re1 Rd6 Kf4 Be2 Ke5 Rc6+ Kd5 Bd3 Bdf3 d1Q Re2 Qdd2 Bh5 Rf6 Bg4 Ne6 Kc6 N6g7+ Kd7 Rc6 Re5 Rb4 B4f3 Bc4+ Rd5 Bb3 Bh5 Rbc4 Qb4+ Kb2 Qbd6 Kc3 Rc5 Rh6 Bg4 Rh7 Qdd4+ Kb4 Re3 Be5 Rf6 Bc7 Qd3 Rc3 Bd1 Bg8 Re2 Rc4 Qd5 Kc3 Rf7 Rh2 Qdd6 Rh7 Qdd4+
3Q2q1/P3PB2/3q3R/2P1p1NQ/1Bpnn3/k5Rp/b2rPbr1/nQqR1K2 b - - 0 1 illegal: No proof kernel
nB6/1P1RrqpK/1pqnP3/QNr5/1R1PQR1p/BP6/B6b/2kb2br b - - 0 1 illegal: No possible last move, all moves rejected
Bb1n4/NrN1p1PB/6Qr/1p2KRp1/n4PPb/r3B1Q1/NP4qn/3k1q2 b - - 1 2 illegal: No proof kernel
2k1N1K1/3bB2P/2Np2QR/p1qNrQ1q/R1P3bR/2P1b2r/Pr3p2/4n1n1 b - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 b3 c4 bxc4 g6 Bh3 g5 dxe5 gxf4 g5 Bc5 Be6 Bf8 Bg4 hxg4 Kf2 a5 e4 b5 h4 f5 g6 g3+ Kf3 b4 g7 b3 c3 d6 e6 g2 e5 b2 e7 Kd7 e8R Na6 h5 Nb4 h6 Nc2 Ne2 g1Q Nd2 b1R Nd4 Ne7 g8Q Ng6 Nf1 Qh4 Nc6 Qc5 e6+ Kc7 e7 Bd7 Qe1 Rb2 Qee6 Rh7 Ne3 Ne5+ Ke2 Qg5 Rb8 Nf3 Rb4 Re8 Kd3 Kc8 Ra4 Bg7 Rh2 Bd4 Qgg6 Qg4 Bd2 Qh3 Rah1 Ng1 Be1 f3 Bh4 f4 Ke4 f2 Nd5 f1B Bf6 Qh4 Kf5 f3 Bg5 Bf2 Kf6 Be3 Qef5 f2 Rh3 Rhh8 Kg7 Be2 R3h2 Bg4 Rh3 Ref8 R1h2 Rf6 e8N Re6 Be7 Re5 Rh1 Rh7+ Kg8 Ne1 Qc2 Rf7 h7 Rf3 Qcf5 Qg5 Rh6 Qh5 Rh4 Rg3 Qd3 Rh3 Qdf5
1r3bQ1/2r3Pp/N3B1PB/2p1pnqb/2KNn2r/2Q3kP/P5N1/Rq3Q1q b - - 0 1 legal: proof: e4 a5 c4 d5 f4 g5 fxg5 b5 b4 Qd6 Na3 Qd7 Rb1 Qd8 exd5 bxc4 b5 Bf5 Rb3 Bc8 Rb4 axb4 Ke2 Kd7 d4 Kd6 g4 e5 b6 c5 b7 f5 g6 c3 Kd3 c2 h3 f4 g5 f3 g7 f2 g6 b3 Bh6 c1R Nc2 b2 Ne2 b1Q Kc4 Ne7 Nf4 Ra7 Ng2 Nd7 b8N Nf5 Na6 Qg5 Qf3 Re1 Qc3 Nf6 Rg1 Ke7 d6+ Ke6 d7 Re4 d8Q Rh4 Bd3 Ne4 Qf6+ Kd7 d5 f1Q d6 Rc7 Nd4 Qf3 Nf4 Qh1 Ng2 Bb7 Bc2 Bc6 Re1 Ba4 Bd3 Bd1 Bc2 Bh5 Bb3 Be7 Qf7 Rb8 Qg8 Bf8 Rg1 Kd8 d7 Ke7 Rc1 Kf6 d8Q+ Ne7 Qd7 Nf5 Qb5 Qd2 Qa4 Qbc2 Ra1 Qcb1 Kd5 Qe3 Qac4 Qg3 Bc1 Qe3 Qf1 Kg5 Ba4 Qf4 Bd7 Qe3 Be6 Qf4 Ne3 Qg3 Kc4 Qg4 Qg1 Kf4 Qf1+ Kg3 Bd2 Qf4 Ng2+ Qe3 Qa5 Qf4 Qb4 Qg4 Bh6 Qg5 Qc3+
1k3R2/1n2n3/pqpnKb2/r1P1NrPQ/1nPQ2n1/1QN1p3/P4R2/1N2b1B1 b - - 0 2 legal: proof: f4 g5 fxg5 d5 e4 dxe4 c4 Qd3 b3 Qd4 c5 Qd8 g4 h5 g6 Qd5 g5 Be6 Bh3 Qd8 Bg4 Bc4 bxc4 hxg4 Kf2 Kd7 Ke3 Kc8 Kf4 b5 Ke5 f5 h4 g3 d4 e3 d5 g2 d6 f4 g7 c6 h5 f3 h6 e2 h7 e1B Nh3 g1N Nc3 f2 Na4 f1N Nf2 b4 Qd2 b3 Qc3 b2 Qd4 b1N Ba3 Ng3 Ne4 Qb6 Rh3 Nc3 Rd1 Nb5 Nd2 Na6 d7+ Kb8 d8N Nf3+ Ke6 Ne4 Nc3 Ne5 Bc1 Ng4 Rh2 Ned6 Nf7 Nb4 Ndb1 Nb7 Rf2 N5d6 Be3 a6 Kd7 e5 Ke6 e4 Ne5 Ne7 g8Q Ra7 Qf7 Bg7 Qf3 Rf8 h8Q Bf6 Qh5 Rf7 Rfd2 Ra8 Bg1 e3 Rf2 Bh8 Rdd2 Rf5 Qd1 Bf6 Qb3 Ra7 Ne2 Ne4 Rd3 Ng6 Nbc3 Na5 Qd7 Rb7 Nb1 Qc7 Qd5 Rb5 Nec3 Qb6 Qd7 Nb7 Rd6 Ra5 Rd5 Ne7 Qd8+ Nc8 Rd7 Rb5 Rh7 Ra5 Qd4 Ne7 Rf7 Ned6 Rf8+
Kb5n/3pnR2/nNP1P2q/3P1k2/1r1n2p1/Qb1p4/BB1P3r/Q1N1NB1r b - - 1 2 illegal: No proof kernel
bBQnN3/p2k1p2/5R2/PbpbB2r/1QPnqP2/1nR3R1/r6P/3b1K1B b - - 1 3 legal: proof: f4 e5 b4 h5 d4 exd4 g4 g5 gxh5 c6 b5 g4 b6 Bd6 Nd2 Bc7 Ndf3 gxf3 bxc7 Qe7 Bd2 Qg5 Bc1 Qd8 a4 d5 e4 b5 h6 f2+ Ke2 c5 e5 b4 h7 b3 a5 d3+ Kf3 d2 Kg2 b2 c3 b1N e6 d4 e7 d3 Nh3 Nh6 Rg1 Nf5 Ng5 Bb7+ Ne4 Bd5 c8Q Nc6 Qe1 d1B Ra3 d2 Bb2 Rb8 c4 Nfd4 Rc3 Ba4 Be2 d1B Kf1 Bb5 Bf3 Rb7 Rg3 Nd2+ Kg2 N2b3 Kf1 Rd7 Bh1 Rd6 Qd2 Rg6 Qe1 Rg5 Qd2 Rhg8 h8B Rh5 Be5 Rg6 Qb8 Kd7 e8R Qe7 Nd6 Nd8 Rh8 Qe6 Ne8 Qe7 Bc7 Qe4 Rh6 Rg7 Rf6 Rg8 Rg2 Rg3 Qe1 Rd3 Be5 Rd2 Rgg3 Re2 Ba1 Ra2 Qc8+ Ke7 Rcd3 Ne2 Bb8 Ba8 Bae5 Ned4 Qa6 Kd7 Rdf3 Qg6 Kg2 f1B+ Kg1 Qh7 Qb4 Bg2 Rc3 Bgd5 Kf1 Qe4 Qc8+
rB6/1BK1N2B/1PR2bP1/1Q1bpk2/1pP2rN1/1P3Qp1/1b1rr2N/1nnq4 b - - 0 1 illegal: No proof kernel
2b1nQQ1/pPN1K2B/1r1RR2P/b2r1P2/1p1rr2N/1P2Nnq1/2kp1nR1/8 b - - 0 1 illegal: No proof kernel
K7/1R1Rp1n1/P2B2p1/rp1QPNr1/4bnr1/3rn2N/R1Pb2Pk/N2q1Q2 b - - 1 2 legal: proof: d4 c5 dxc5 a5 b4 axb4 f3 Qb6 f4 Qd8 f5 g6 e3 Qb6 Bd3 Qd8 fxg6 Ra6 g7 Ra8 Bg6 hxg6 Kd2 f5 Kd3 Kf7 Kd4 Ke6 a4 b5 h4 d5 h5 f4 a5 Kf5 c6 f3 Kc5 Kg4 e4 Kg3 c7 d4 Kb6 b3 e5 b2 h6 d3 h7 d2 Nh3 f2 Na3 b1R Qe2 d1R Nc4 f1N Bb2 Nh6 g8Q Bb7 Nd2 Nf5 Ba3 Nc6 Nb3 Nb4 Ra2 Nd3 Na1 Rb4 Qb3 Qd7 c8N Rg4 Nd6 Bh6 Rg1 Ng7 Nf5+ Kh2 Qf7 Rab8 Ka7 Qd4+ Bc5 Be4 Qg8 Rb7+ Ka8 Bc1 Bb4 Ne3 Qd8 Rd2 Rd1 Nf4 Qf1 Qd6 Bc5 Rd4 Rd3 Ra4 a6 Ra5 Rd1 Qd2 Bb4 Qe1 Rd5 Bd2 Qg8 Rb6 Ba3 Rc6 Rd7 Qd1 Bd6 Rg5 Kb7 Rc3+ Qd5 Rd3 Ka7 Ne8 Ka8 Rg4 Nh4 Rf8 h8R Rf5 Rb7 Rh5 Nf5 Ng7 Rd8 Rhg5 Rdd7
4b3/3q1QpP/1N1QRpn1/4Bk2/r1r1p2Q/1K2bB1P/r4PP1/Nn1nr2N b - - 0 2 illegal: Other
3R3n/n3rbpp/bQ1P2PN/k2P4/Bb1bN3/2B5/1prPB2q/1qN2KQ1 b - - 0 1 illegal: No proof kernel
1KN3Q1/1p2Prp1/b1q3Pq/RB3P2/1b2P2R/3bBkn1/b1rRp2Q/Q1n5 b - - 0 1 illegal: No proof kernel
4b1K1/3pRpB1/1q1p1P1P/QN3nB1/k2n2P1/1N2r2N/1b1PbQ1b/Br1q4 b - - 0 2 illegal: Other
1QKR3n/1Np1P3/1qP1Nk1P/1r2bp2/1q4Q1/p3Pbnq/1BR3qR/N6r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e5 d4 Nf6 Bh3 Ng8 dxe5 gxf4 g5 Qe7 Bf5 Qd8 Bg4 hxg4 Kf2 Ke7 b4 a5 c4 f5 h4 d5 g6 g3+ Kf3 a4 g7 a3 e6 d4 h5 d3 e3 d2 b6 g2 h6 Ra5 b7 Ra8 c5 Kf6 b5 Nc6 b8N Bd6 e7 Ra5 b6 Rb5 b7 Be5 Ne2 g1Q Na6 Qd6 b8Q Nd8 Ra2 Nf7 Rc2 Qb6 Nd4 Qg6 Qe2 d1Q Nd2 Qe1 N2b3 Qb4 Na1 Rh7 Rh3 Nh8 Bb2 Bd7 Ne6 Bc6+ Kf2 f3 Rh2 Bd5 c6 Qgg4 Nac5 Qh3 Nb7 Be4 Kg1 Bd5 Qg2 f2+ Kf1 Be4 Ke2 Bf3+ Kd3 f1Q+ Qe2 Qfg2 Qd1 Kg6 Qg1 Nf6 g8R+ Kf7 Rd8 Nh5 Qd1 Kf6 Qe2 Qe1 Kc4 Ng3 Qd1 Rg7 Qd4 Rg5 Qg4 Rh5 Bc3 Rb1 Bb2 Qd4+ Kb5 Qeb4+ Ka6 Qdc5 Qa8 Qcb5+ Ka7 Qb6+ Kb8 Rh4 Kc8 Rh1 Qc4 Rd4 Qb8 Rd5 Qd4 Rb5 Qg4
4K3/bk1N1pQP/1r2p1bB/2r5/p4RRn/P1q2PQ1/P1Q1Bnq1/1Bq1q3 b - - 1 2 legal: proof: g4 h5 gxh5 c5 e4 d5 Nc3 dxe4 Nd5 Qa5 Nb4 Qa3 bxa3 cxb4 Ke2 Kd7 Ke3 Kc7 Kf4 a5 Kg5 b5 h4 b3 d4 b4 c4 a4 f3 b2 h6 b1Q d5 e3 d6+ Kb7 d7 e2 d8Q e1Q c5 b3 h5 b2 h7 Nf6 h6 Qc2 Nh3 b1Q Q8d6 Qcc3 Qg3 Ra6 Nf2 Nbd7 Be2 Ng4 Nd3 Nf2 Qc2 Rb6 Rh4 Ne5 Rf4 Ng6 Ne5 Bf5 Nd7 Nh4 Bd2 Rg8 h8Q Qbc1 h7 g6 Qg7 e6 Kh6 g5 c6+ Ka8 c7 g4 c8B Bg6 Rb1 Bc5 Bca6 Rc8 Bad3 Kb7 Rbb4 Be3 Rc4 Rc5 Re4 Qh1 Rd4 Qg2 Bf5 Qe1 Kg5 Qc1 Kf6 Qe1 Ke7 Qc1 Qh3 g3 Ke8 Rb1 Qh6 Re5 Qd1 Qg1 Rg4 g2 Qg3 Qe1 Bfd3 g1Q Qg7 Qg2 Bf5 Rb2 Bb1 Rh5 Rc4 Ba7 Qc2 Rc5 Bh6 Rb6 Rcf4
1RQNrN2/2p1rnK1/1r5B/1n2k3/b3P3/ppQRR2b/PPqP4/2r2qN1 b - - 1 2 illegal: No proof kernel forced: bxDB
R1Q1r2b/1Bb1p2p/p3BQ1K/2P1PRB1/2k4n/3b3R/1P1bN2P/2rnq1q1 b - - 1 2 legal: proof: d4 b5 c4 d5 a4 c5 axb5 f5 g4 fxg4 Na3 Qc7 dxc5 Ba6 c6 Bc8 c5 Qd8 Nc4 dxc4 e4 Kf7 Ke2 Ke6 Ke3 g5 f4 c3 b6 g3 b7 c2 c7 g2 Be2 g4 Bf1 g3 Ra5 Nc6 b8R Nh6 Rb4 Bg7 Qd4 Ne5 Rba4 Neg4+ Kf3 Ne3 Bb5 Ba6 Rb4 Nd1 Ne2 g1B Rb3 Nf5 Kg4 g2 Kg5 Be3 Rf1 Bd2 Rh3 Re8 c8B+ Qd7 Raa3 Nh4 Bb7 Bh8 Kh6 g1Q e5 Ba5 Qf2 Bc7 B5c6 Bd3 f5+ Kf7 f6 Ke6 Bg5 c1B f7 Bd2 f8Q a6 Rb3 Rad8 Bb5 Qc6 Q2f6+ Kd5 Rf5 Qe1 Ba4 Kc4 Rb6 Qf3 Bd7 Qfg3 Rd6 Qgg1 Rc6 Bb8 Rc8 Bc7 Ra8 Rb8 Bf3 Rb3 Bb7 Rc3 Qg8+ Kb4 Qge6 Rc1 Qc6 Bd6 Qc7 Kc4 Qc8 Bc7 Be6+
2q1b3/1p1R4/2RqpRQP/NP1nr2P/2K1PpqB/2n2q2/3Q1Nk1/1r3Nb1 b - - 0 2 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 g5 b4 gxf4 Bg2 a4 cxd5 Bh6 Be4 Bg7 Bc2 Bf8 Bb3 axb3 h4 Kd7 d4 Kd6 Kd2 c5 Kc3 f5 a4 b2 e4 f3 h6 c4 b5 f2 h5 f1Q a5 Nc6 a6 Qf3+ Qd3 Nb4 a7 Nf6 Qe3 Bd7 Nd2 b1Q Nh3 Be8 Rf1 e6 Rf2 Rg8 Nf1 Rg5 Ra6+ Qb6 Bd2 Qbd1 Be1 Rc8 a8Q Na2+ Kb2 Rg1 Qd2 c3+ Ka3 Qde2 Kb3 Rc5 Qc8 Qg4 Rf4 c2 Bh4 c1Q Nf2 Nc3 Qb8+ Kd7 d6 Re5 d5 Qef3 Kc4 Qc7+ Rc6 Qc8 Qa7 Qcd1 Nd3 Rh1 Qg1 Be7 Nf2 Bd8 Nh3 Bb6 Qg3 Bg1 Nf2 Kd8 d7 Ke7 d8R Kf7 d6 Nfd5 Qd3 Qd2 d7 Qdd1 Qg2 Qd2 Bg3 Qdd1 Qd2 Kf6 Nd3 Kg5 Be1 Qe3 Nf2 Kh4 Rf3 Qgf4 Qg6 Qg4 Rf4 Qb6 Nd3+ Kh3 Bh4 Qa6 Nf2+ Kg2 Rc7 Qb8 Rdc8 Qba8 d8N Qd6 Nc6 Qf3 Na5 Qb8 Rd8 Qc8 Rc6 Bh2 Ng3 Rb1 Rd7 Bg1 Nf1 Qgg3 Rg4 f4 Rg5 Qfg4 Rf5 Q3f3 Rf6
K5B1/1n2QN2/RQ2b1kP/b2rp1qP/Q1q2Bpq/1pP1PnR1/5r2/4Bq2 b - - 0 1 illegal: No possible last move
B2Q3K/q7/1b1r2Qk/PqRR3p/r1b1r1r1/1pPn1nR1/1PB1Q1pP/1N6 b - - 0 2 illegal: No proof kernel
4K1nn/1pqr3Q/2p5/Qq1r1Rbp/kb3B1R/bb1P1NPQ/NP4RP/8 b - - 1 2 legal: proof: e4 a5 c4 d5 cxd5 f5 f4 g6 Qa4+ Qd7 Qxa5 Qd6 Qa7 Qd8 Be2 Nd7 Bg4 fxe4 f5 Nb8 f6 Bf5 Bh3 Bc8 Bf5 gxf5 Ke2 Kd7 Ke3 h5 Kd4 e5+ Kc4 e3 a4 f4 a5 f3 f7 e4 g3 e2 a6 e1B d6 Kc6 d7 f2 Nf3 e3 Ra4 e2 Rg1 f1Q Rg2 Ba3 f8R Rh7 Rf5 Qe7 d8Q Be6+ Kd4 Bb3 Qc8 Nd7 Nc3 Ne5 Na2 Kb5 d3 c6 Bg5 Bd2 Bf4 e1B Rc4 Qb4 Qb6+ Ka4 a7 Nf7 Qe6 Nh8 Ke5 Rc7 Qe7 Rac8 Ke6 Rd8 Qh7 Rd5 Rd4 Rcd7 a8Q+ Ra5+ Rc4 Be3 Qad8 Rad5 Qh4 B3d2 Qh3 Bc1 Bc7 Bg5 Rh4 Qg1 Bf4 Qb5 Qg7 Beb4 Qe7 Ng6 Kf7 Nh8+ Ke8 Qd4 Qf7 Qe5+ Qe7 Qd6 Qh7 Qc7 Qa5+
2B4R/3N1KP1/1kr1p1pQ/1N2P1Pb/pQnB2n1/1n2QP2/3nb2b/4qq1B b - - 0 1 legal: proof: b4 a5 e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 h5 Ra7 h6 Ra6 e5 Rf6 Rh4 Rf7 Re4 Rg7 hxg7 fxe4 Ra3 Nf6 Rh3 Ng8 Rh4 Nf6 Rh1 Ng8 Kd2 d5 c4 Kd7 g4 Kc7 f3 h5 c5 h4 c6 a4 g5 e3+ Kd3 h3 Be2 h2 Qf1 Nf6 Bb2 Ng4 Qh3 Na6 Na3 Kb6 Bf1 e2 c7 e1Q Bg2 Nc5+ Kc2 Qf1 Qh6 d3+ Kc3 d2 Kd4 d1N Nh3 Nde3 Nf4 Nc4 Ne6 Bd7 c8B Nb3+ Kc3 Rg8 Nc5 Qe1+ Kd3 d4 Bc3 Qf1+ Ke4 d3 Kd5 d2 Bb2 d1B Bd4 Bc6+ Ke6 Bd7+ Kf7 Be2 Rg1 Bf5 Bh1 e6 Rg3 Qd5 Rh3 Qe4 Rh5 Qeb1 Rh3 Qbe1 Rh4 Kc7 b6+ Kc6 b7 Kb6 b5 Bd6 Bg2 h1N Rh3 Ng3 Bh1 Ne4 b8Q+ Ka5 b6 Ned2 b7 Kb6 Qa8 Bb8 Nb5 Ba7 Rh4 Rd8 Rh3 Rd6 Rh4 Rc6 b8Q+ Ka5 Qd6 Kb6 Qf8 Nf6 Rh2 Bg4 Qe7 Bh5 Rh3 Rc7 Qe4 Rc6 Qe3 Ng4 Nb7+ Ka6 Qb4 Bc5 Rh2 Ba7 Nc5+ Kb6 Rh4 Qa1 Nb7+ Rc5 Qh8 Ka6 Qg1 Qae1 Bc3 Rc6 Qh7 Be3 Bd4 Bf4 Qe3 Bh2 Nc5+ Kb6 Qh8 Nf6 Qg8 Bg4 Rh8 Bh5 Qh7 Ng4 Qh6 Qff2 Ba6 Qg2 Bc8 Qgf1 Nd7#
3q2QB/1kp3rb/b3BP2/1RB2rp1/2P2Nq1/5pP1/2K1NP1n/1rQQqr2 b - - 1 3 legal: proof: b4 f5 c4 d5 h4 a5 a4 axb4 e3 f4 h5 d4 Ba3 f3 Qb3 Nd7 Bc1 Ne5 Ra3 g5 Qc2 Ng6 hxg6 Bg7 Rc3 Be5 Qd1 Bf4 exf4 dxc3 d3 Kd7 g3 Kc6 a5 b5 a6 h5 f5 e5 g7 b3 a7 e4 Bb2 e3 Bg2 h4 Nh3 b4 Nf4 e2 Bh3 c2 Kd2 c1R Qf1 Rh7 Bd4 b2 Bc3 Nh6 g8Q b3 Bh8 Ng4 f6 Rg7 Nc3 b1B Qe1 Rb8 a8Q+ Rb7 Qa4+ Rb5 Qf1 b2 Qa1 Ba6 d4 Qf8 d5+ Kb7 d6 Bh7 d7 Qd8 Qa4 Ra1 Qb1 Rc5 Qbc2 Rc1 Re1 b1R Qa3 Rcb5 Qd3 Rd1+ Kc2 Re5 Qc1 Rc5 Bg2 h3 Bf1 h2 Bh3 Nh6 Be6 Rf5 Qdd2 h1Q Qd6 Qh4 Qd4 Qf8 d8B Ng4 Be7 Qd8 Bf8 Nh2 Qd6 Rdd5 Rd1 Rde5 Rd5 Qg4 Ra5 Re3 Qdd1 Ree5 Bc5 Rd5 Qe1 Rd1 Qed2 Rh1 Qdd1 e1Q Nce2 Rf1 Rb5+
1n3r1Q/1P2k1nQ/1B1p2Rr/r7/nPqN2Np/3br2p/1R1P3P/3KN1nR b - - 0 1 legal: proof: b4 e5 f4 exf4 c4 b5 cxb5 g6 a4 Bb7 e3 Bg7 a5 Bd4 Be2 Bb6 axb6 Bc8 Bh5 gxh5 g4 a5 g5 c5 g6 f5 g7 h4 e4 h5 e5 h3 e6 d6 b7 a4 e7 a3 b6 c4 Qb3 c3 Qc4 c2 Qf1 f3 Qd3 f4 Bb2 c1N Qc2 h4 Qc4 a2 Bf6 f2+ Kd1 f1R+ Kc2 f3 Qe6 f2 Qe1 Ra5 Na3 Qc7+ Kd1 Qc4 Bd4 Nh6 Rb1 a1N Nc2 Nab3 Ne2 Bf5 Rb2 Bd3 g8R+ Kd7 e8N Nc5 Rg3 Nf5 Rg6 Ke7 Nf6 Ng7 Ng4 Na4 Bc5 Rg1 Ned4+ Ne2 Qf1 Rf8 Ne1 Rg3 Qg2 f1R Qe4+ Kd8 Qf5 Re3 Qh5 R1f6 Qh7 Na6 b8Q+ Ke7 b7 Ng1 Qc8 Nb8 Bb6 Rfe6 Rg5 Rh6 Rg6 Rff3 Qcg8 Rf8 Qgh8
2bnrk2/1prpQ1r1/1P4P1/QN2qbB1/1P1R1Q1p/K3PBp1/1n4R1/5Rb1 b - - 0 1 illegal: No proof kernel
8/RNb2PQ1/2pPB1k1/2nbnrnb/R1P2pQq/p1r4N/Pp2R2Q/3K4 b - - 0 2 illegal: No proof kernel
3bnK2/1n3p1P/b1RN1r2/P2Q3p/1Q3q2/QR2pPp1/r1k4P/n1bN2RB b - - 1 2 legal: proof: e4 a5 b4 c5 bxa5 h5 g4 d5 g5 dxe4 Ba3 Qb6 Bb4 Qh6 gxh6 cxb4 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 c4 b5 a4 e5 f3 b3 c5 b4 a6 e3 c6 e2 d3 e1B c7 b2 a7 e4 Nc3 b1N Ra3 e3 Qc1 b3 Bg2 b2 Rb3 Nf6 Nd1 Ba3 Nh3 Nbd7 Rg1 Ne8 Bh1 Nd2 Nhf2 b1Q Ne4 Nc5 Nd6 Ba6 c8R Nb7 Rc6 Bh4+ Kf5 g5 h7 g4 Qc2 Qa1 Qb1 g3 a5 Bd8 Qc1 Rc8 a8Q Rg8 Qb8 Qb2 Qa1 Rg6 Qc1 Qc2 Qa1+ Bb2 Qa3 Rf6+ Kg5 Nc5 Qbb4+ Qc4 Rc3 Nb7 Rb3 Rf4+ Kh6 Bc1 Rb1 Nb3 Rb2 Na1 Rb3 Nf6 Kg7 Ne8+ Kf8 Rf6 Qb6+ Kd5 Qbb4 Qf4 d4 Rc7 Rb6 Rc2 Rc6 Ke6 d5+ Ke5 Ne4 Re2 d6 Ra2 d7 Kd5 Nd6 Ke5 Qb5+ Kd4 Qbb4+ Bc4 Nc3 Kd3 Nd1+ Kc2 Re1 Bb6 d8Q Bc7 Rg1 Bb6 Qd7 Bd8 Ra6 Bf1 Qe6 Bd3 Qd5 Bb5 Rb6 Ba6 Rc6+
R7/1bB2nk1/pP1PB2r/PQb1n1n1/1B5N/1KpR4/pp2qPQq/4r2R b - - 0 1 illegal: Other
q1R5/pbq2N1N/4Ppp1/P1kQ2b1/q3rn2/2N1B2r/1KPQp1P1/n3B2Q b - - 1 2 illegal: No possible last move
3Bk1nR/rp2PNqQ/1Qb4p/pq1pN1n1/1PP1R2K/q1Rr4/P7/3N3b b - - 1 2 legal: proof: h4 c5 d4 cxd4 f4 e5 fxe5 g6 g4 Qc7 Bg2 Bh6 Be4 Qc6 Bf5 gxf5 g5 Qa6 g6 Bg5 hxg5 Qb6 Qd3 Qf6 Qd1 Qd8 Kf2 a5 Kg3 d5 e4 d3 b4 d2 g7 f4+ Kh4 f5 e6 f3 e7 f4 g6 f2 e5 f1B Nc3 Bg2 Nf3 Na6 Qg1 d1Q Qb6 Qd3 Nd1 Qd7 c4 Nc7 Bb2 Ne6 Rc1 Ng5 Rc3 Qb5 Re1 h6 Re4 Bd7 Bc1 Bc6 Bb2 Kd7 e8N Ra7 Nd6 Bh1 Nf7 Ke8 e6 Qe3 N3e5 f3 e7 f2 Bc1 Qd3 Be3 f1Q Bc5 Qfe2 Bd6 Qb2 Bc7 Qa3 Bd8 Qd4 Rc2 Nf6 Rc3 Rf8 g8Q Qg1 Qh8 Ng8 g7 Qg2 Qh7 Qgb2 Nh8 Rf3 Nhf7 Rd3 Ng6 Bd7 Rc1 Nf6 Rc2 Bc6 g8R+ Kd7 Rh8 Ng8 Rc1 Qg7 Nge5+ Ke8 Rc3
1Q1K1B1n/1P1NP1pQ/nr2b2p/2q2p2/3bR2k/N3B2N/p3nPqP/1rB5 b - - 0 2 illegal: No proof kernel
1q1n2r1/1Q1b1pp1/1bR4P/rp4PQ/3nN1pK/1B1N3N/rP1P4/1kQRr3 b - - 0 2 illegal: No possible last move, all moves rejected
K1b5/nQp1p2n/1qN3P1/BP2PQp1/2br4/1pP1BR2/NQ1rB2b/k6b b - - 0 2 illegal: No proof kernel
knb3K1/P2q4/4p1pN/1r2Q3/nPn1P1bp/pr2QB2/n2R2PN/Q1B4N b - - 1 2 illegal: No proof kernel
1qBNb1k1/b1pQ1r2/p1bQ1r2/3pN3/P2n3P/Q1Pb1p1R/KB5P/5B1n b - - 0 2 illegal: No proof kernel
5B1Q/2Nn1n1p/p5QR/1pq4n/1pP1R1N1/PP6/1b1PK1Rq/1k2Qrbb b - - 0 1 legal: proof: f4 g5 fxg5 d5 h4 c6 e4 dxe4 Bb5 cxb5 g6 Qd6 Na3 Qb6 Nb1 Qd8 g4 b4 g5 b5 g7 a6 g6 Ra7 Kf1 Rd7 Ke2 Rd5 Ke1 Rg5 hxg5 Qa5 Rh2 Qc7 Rh1 Qd8 c4 Kd7 a3 Kc6 b3 Kc5 Rh5 Kd4 Qf3 e5 Rh6 f5 Qh5 Kd3 Nc3 Kc2 Qh1 e3 Qa8 e2 Rh2 f4 Rh4 f3 Nb1 e4 Rh3 Bb7 Rh6 Qd5 Nh3 Qc5 Bb2 Nd7 Nf2 Ngf6 g8Q Nh5 Qa7 Bg7 Nc3 Bd5 Qf7 Rf8 Ng4 Bb7 Nd5 Bd4 Bc1 Bb2 g7 Ba8 g8Q Bb7 Ra2 Kb1 g6 Bc6 g7 Ba8 Nge3 Bb7 Kf2 e1N Nc7 Nd3+ Kf1 f2 Ng4 e3 Qg6 Be4 Qh8 N3e5 g8R Rf4 Qb8 Nf7 Qe8 Rf5 Ke2 Bh1 Kd3 e2 Qee5 e1B Ke2 Bc3 Bb2 Bd4 Ba1 Bc3 Rc2 Bb2 Re8 Rf3 Rc3+ Rf5 Rg3 f1Q+ Kd1 Qd3 Rg2 Qh3 Ke2 Bf2 Qe3 Qh4 Re4 Bg1 Qg3 Rf1 Qe1+ Bc1 Bg7 Qh2 Qg3 Bb2 Bf8 Ba1 Qh4 Bb2 Qe1+
B3Bbr1/PRn1pq2/2Q3Rp/5n1k/P1p1R1pP/1QB1P2b/6N1/K1nn3n b - - 0 1 illegal: No proof kernel
2r1b3/p1r1p3/nQ1r2R1/RpN2PBb/BR1Q3q/P5p1/kP1K2P1/b2B2r1 b - - 1 3 illegal: No proof kernel
1kRK4/1pR4Q/2B3Qn/1PpNp3/qbP2b2/1b3pq1/2PR1P2/1bNQ1nn1 b - - 0 1 illegal: No possible last move, all moves rejected
R2B1n1K/4p2R/r1Np1n1p/p5bP/1P1P1pr1/k5Pb/1Q1q1Qb1/2Q3NN b - - 1 2 illegal: No possible last move, all moves rejected
1k3q2/1rpNPpp1/bB2R1P1/rr1Q4/p1P1P1N1/nn2p1R1/Q2R1b2/1Q3K2 b - - 1 2 legal: proof: e4 d5 a4 b5 axb5 e5 f4 d4 fxe5 Be6 Ke2 Bd7 Ke1 Bc8 g4 h5 g5 Bb4 Bh3 Bc5 Qe2 Bf8 Bg4 hxg4 Qe3 dxe3 d4 Kd7 c4 a5 h4 a4 b4 g3 h5 g2 g6 Bd6 d5 Nc6 h6 Rb8 b6 Qg5 b7 Qf6 e6+ Kd8 b5 Qe7 h7 Bd7 b6 Bc5 d6 Bc8 d7 Nh6 Rh2 Ra8 b8R Qd6 b7 Bb4+ Nd2 Bc3 Bb2 Qa3 Nh3 Ne7 Nf2 Ra5 Ng4 Be5 Nb3 Nhf5 Nc5 Nd5 Bd4 g1R+ Ke2 Rg2+ Kf1 Rb2 Rd2 Nc3 Re1 Rg8 h8Q Bg3 Qh2 Nb1 Ra8 Rf8 b8Q Bf2 Ra6 Rb7 Ree2 Qb4 Rc6 Na3 Ra6 Bg1 Rg2 Bf2 Rg3 Rg8 Qa7 Rh8 Qb6 Rh5 Qg2 Qc3 Qb1 Qb4 Nd3 Qe7 Bb6 Nd4 Nc5 Qf8 Qh2 Nb3 Qg2 Rd5 Qh2 Ke7 Qg2 Kd6 d8Q+ Kc6 Nd7 Rdb5 e7 Rb8 Bc5+ Kb7 Re6 Ka8 Bb6 Ba6 Ndf6 Kb7 Qd5+ Kc8 Nd7 Rb7 Rd1 Be1 Qga2 Bf2 Nde5 Kb8 Rd3 Kc8 Rd2 Kb8 Nd7+
3nnbR1/2P1kp2/2B1pP1r/1P6/pK2Bb2/rpQ3b1/R1R1Ppq1/1Q2B1N1 b - - 1 2 illegal: No possible last move, all moves rejected
3b4/pnPQQ1B1/K1np4/P3p1Rr/N1p1B2k/RRPq1b1p/q5P1/4Q2r b - - 1 2 legal: proof: e4 b5 d4 c5 h4 g5 Nd2 f5 exf5 gxh4 Nc4 bxc4 dxc5 Qb6 Bg5 Qc7 Bc1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 h5 Kb5 e5 a4 d6 f4 h3 b4 h2 c6 h4 a5 Bg7 c7 Bh6 Ra3 Na6 Bd3 Nc5 Qe1 Bg7 Be4 Rh6 Ne2 Nd3 Nc3 Bh8 Na4 Bd7+ Ka6 Qe8 c3 Rh5 b5 Bc6 b6 Qg6 b7 Ne7 b8R h3 Rf1 h1Q Rbb3 Rf8 Rf3 Qg1 Rg3 Qf2 Rg5 Qa2 Bd2 Bd5 Be3 Nc6 Bc1 Kg7 f6+ Kh6 f7 Bf6 f5 Bd8 f6 Qh7 Bg6 Bf3 Be4 Rg8 f8Q+ Rg7 f7 Nc5+ Kb5 Nb7 Qe8 Rg8 Qd7 Rf8 Bc2 Qd3 Ka6 Rg8 f8Q+ Rg7 Qfe7 Rf7 Be3 Rf4 Qh4 Re4 Bf4 Re1 Qf2 Rh1 Qe1 Qe2 Be4 Qd3 Bg3 Qd1 Bh4 Qd3 Rf5 Kg6 Bf6 Kh6 Bg7+ Kg6 Rf6+ Kg5 Rf5+ Kg4 Qd1 Kg3 Rg5+ Kh4 Qe1+
n3Q3/1R5b/1pB2R2/3K1NqQ/3Np1p1/1P1prP1p/N1QPP1k1/1br1rb2 b - - 2 3 illegal: No proof kernel
3n2k1/2n1pN1r/3Pb2n/4RPpK/pn3RP1/P1Qr3N/1qp1Np2/2Q2RB1 b - - 0 1 illegal: No proof kernel
1R1qNQ1R/QP1pp1K1/kN2bp2/p2P1B1b/1p5q/PPr3bN/Q7/3r3b b - - 0 1 illegal: No possible last move, all moves rejected
3Q4/1Q1BN1pp/qNpKp3/1bQ1r1b1/kn1R1PP1/2p1Pn1p/1q3PNB/8 b - - 0 1 illegal: Other
4n1kr/2bpQ1bN/1b3P1p/1rQ1pNp1/1p2PR2/n1p1K1P1/RP6/1N3RB1 b - - 0 3 illegal: No proof kernel
1k1NB2N/3Rp1QK/1Bp1b3/3B2qn/1p2n1P1/1P1rbNr1/Q1P1Pb1b/2n3q1 b - - 0 1 illegal: No proof kernel
4B1Qr/2knp1q1/P3Bb2/1R4p1/2r1pp1B/Rp1NQqP1/1Pp2Pn1/3b2KR b - - 0 1 illegal: No proof kernel
5b2/4kRR1/Nq2P3/BN3b1N/1K2p2q/pnr1rrPB/1nPR2PB/2n5 b - - 0 1 illegal: No possible last move, all moves rejected
3rq1R1/n1PPB1p1/1R3BR1/NP1n2pk/q1p5/4bB1P/N5n1/KNbr4 b - - 0 1 legal: proof: e4 f5 exf5 c5 b4 h6 bxc5 Nf6 g4 Ng8 g5 hxg5 a3 Nc6 a4 Nb8 c4 d5 c6 b5 c5 b4 Qb3 Ba6 Qc4 Bb5 axb5 dxc4 Kd1 Kf7 Kc2 a5 Kb2 e5 d4 e4 f4 b3 d5 e3 d6 e2 c7 e1N c8N a4 c6 Ra6 d7 Ra7 c7 Qe7 f6 Kg6 f5+ Kh6 f7 Rb7 f6 Qe8 Ne2 Rb6 Nec3 Ne7 Na7 Nbc6 Bd3 Nd5 Be4 Kh5 Na2 Bc5 f8R Ng2 f7 Be3 Rg8 Rb8 f8B Rd8 Ba3 Rh6 Be7 Rd6 Nc8 Na7 h3 Ndf4 Rf1 Rd1 Nd6 Nd5 Rf4 Nf6 Nb7 a3+ Kc3 b2 Na5 Nd5+ Kc2 Bc5 Rf6 Bg1 Bf4 Be3 Be5 Bc1 Rb6 Be3 Nc1 a2 B5f6 Ndf4 Na3 b1Q+ Kc3 Qd3+ Kb2 Nd5 Nb1 Rf1 Ne2 Qd1 Nec3 Qa4 Na3 Qg6 Re1 Rh1 Ka1 Qe8 Nab1 Rg1 Re2 Rd1 Rf2 Bc1 Rf5 Be3 Re5 Bc1 Ree6 Bf4 Be5 Bc1 Rg6 Be3 B5f6 Bc1 Na3 Be3+ Kb2 a1B+ Ka2 Rd2+ Kb1 Bb2 Na2 Bc1 Ka1 Rd3 Nb1 Rd1 Bf3+
3n1NR1/pbP1B3/Bq1bnq1r/Nb3k2/1P2r2R/b7/PB1KPN2/1Rr2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 c4 Ke7 Qc2 Ke8 fxe5 cxd4 c5 Qb6 Qc3 Qd8 Qc4 bxc4 b4 Ke7 h4 Ke6 c6 f5 h6 g5 c7 d5 h5 c3 h7 d3 h6 d2+ Kd1 f4 Rh3 g4 Rd3 g3 Ba3 d4 Rf3 g2 Kc2 d1R Nd2 d3+ Kb3 c2 Kc3 c1B Nb3 d2 Bb2 Nc6 Na5 Bb7 Rg3 f3 Nh3 g1Q Nf2 Kf5 e6 Qf6+ Kc2 Nge7 Rb1 Nd5 e7 Nd8 e8N Bd6 Bg2 Nf4 Rg8 Nfe6 Kd3 Re1 Bh1 d1B Ng7+ Kf4 Bg2 Ba4 Bh3 Bb5+ Kc2 Nc5 Bc8 Kg5 Ne6+ Kf5 Nf8+ Nce6 Be5 Ba3 Bb2 Rc1+ Kd2 Be4 Ba6 Bb7 Ne4 Qb6 Nf2 Qg6 Bf6 Rb8 Be7 Qf6 Rg4 Ra8 Rh4 Rc8 Ng6 Re8 h8B Ra8 h7 Rb8 Ng4 f2 Nf8 f1B Nf2 Ra8 Bg7 Rb8 h8R Ra8 Rg4 Rb8 Rhh4 Ra8 Nh7 Rh8 Nf8 Rh6 Rg3 Nd4 Rhh3 Nf7 Rg4 Qe5 Rg6 Re8 Bef6 Nd8 Rh4 Qe7 Bh8 Qg7 Rgg4 Re4 Be7 N4e6 Rg2 Qf7 Bb2 Qf6 Rg8
2n3rr/rRb1pqB1/5p2/B3nR1P/NP2b2K/krqN1R2/3P1P1b/3B2N1 b - - 0 1 legal: proof: e4 b5 b4 h5 g4 d5 gxh5 dxe4 Qf3 c5 a4 c4 Qb3 cxb3 axb5 Rh6 Ne2 Rh7 Ng1 Rh8 h4 Kd7 c4 g5 b6 Kc6 c5 a5 h6 a4 h7 e3 h5 a3 b7 b2 Bc4 g4 Ba6 f6 Nh3 g3 Ng1 a2 Nc3 b1R Rh4 g2 Rg4 Bf5 Ke2 Qc7 Kf3 e2 Bb2 e1Q Nd1 Nd7 b8R Qe6 Rg3 Nb6 Be5 Bh6 Nb2 Bf4 Be2 Nc8 Rb7 Qf7 Nd3 Rb3 Bd1 Be4+ Kg4 Nh6+ Kh4 Ng4 Rf3 Bh2 Rc1 a1R Rc2 Rg8 h8B R1a7 Bg7 Rb8 Bd4 Ne5 Rc1 Kd5 c6 Bf4 Ra1 Kc4 Bb6 Kb5 Rc1 Ka4 Ba5 Ka3 Rc5 Bh2 Ne2 g1B Rcb5 Qb6 c7 Qe3 Rc5 Bf4 Rd5 Bgh2 Ng1 Qd4 Rc5 Qc3 Rd5 Nd6 c8N Rh8 Nb6 Rbg8 Na4 Nc8 Bf8 Ng4 Bh6 Bc7 Rdf5 Ne5 Bg7
q2Q2R1/6B1/RNnbP2r/1Rn3Pr/5P2/p3bKP1/1qR1B2q/1q4Rk b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 d5 d4 g5 hxg5 Bd6 b3 Bf8 c4 exd4 cxd5 Bh6 Rh5 Bg7 Rh1 Bf8 e4 a5 e5 f5 b6 a4 Nd2 a3 Ne4 fxe4 Qc2 Bd7 Qd1 Ba4 bxa4 Ra7 Qc2 Ra5 Qd1 Ra8 Ke2 Ke7 f4 h5 b7 c5 g3 h4 e6 Kd6 a5 h3 a6 h2 a7 c4 Qb3 c3 Qc4 e3 Qa6+ Nc6 b8R c2 Rb3 d3+ Kf3 d2 Rab1 d1Q+ Kg2 e2 Qd3 e1B R3b2 Rh6 Nf3 Bd2 Be2 Be3 Ne5 Nf6 Kf3 Nd7 Rg1 h1Q+ Rg2 Nc5 Nd7 Qh2 Nb6 Qc8 Bd2 c1Q Rc2 Qb2 Bc3 Rb8 a8R Qd8 Ra1 Qdb1 Bg7 Rb7 Ra6 Qa8 Ra2 Rf7 Qd2 Rff6 Qd3 Rh5 Qd1 Rfh6 Ra1 Kc7 d6+ Kb7 d7 Kc7 Qe1 Kd6 Qc3 Be7 Qf6 Bf8 Qd8 Be7 Nc8+ Kd5 Ra2 Bd6 Ra1 Qf6 Nb6+ Kd4 Raa2 Qe5 Rab2 Qf6 Kg4 Ke4 Rb5 Qfa1 Qf8 Qab2 d8R Bf2 Qf6 Be3 Rg8 Bd4 Qd8 Ke3 Rg1 Kf2 Rf1+ Kg2 Rf2+ Kg1 Kf3 Be3 Rg2+ Kh1 Rg1+
1N3nqR/1N2K1Rr/Nq3rq1/bN4b1/1PPNk3/1P3p1b/2n3PB/2Qq4 b - - 0 1 legal: proof: h4 b5 f4 e5 fxe5 c5 d4 cxd4 a3 b4 axb4 Qb6 Bg5 Qc7 Bc1 Qd8 e3 g5 hxg5 Be7 c3 Bf8 Bb5 d3 Ba4 Qb6 Bb3 Qd8 Bc2 dxc2 Ke2 Ke7 Kf3 Ke6 Kf4 f5 e4 d5 g6 a5 g7 h5 Nf3 d4 Ng1 d3 Nd2 h4 Ne2 a4 Ng1 a3 Nc4 h3 Ne2 a2 Nd6 d2 Nb7 Ne7 Kg5 h2 g8N f4 Nf6 f3 Nd7 Nbc6 Nb8 Qb6 b3 Nd4 c4 Rh7 Qf1 d1Q Bf4 c1B Qg1 Nc2 Nd4+ Kf7 Qe1 Ra6 e6+ Kg7 e5 Ng6 e7 Bh3 e8N+ Kf7 Qg3 Bc5 Nc7 Nf8 Ncb5 Bd6 Qh4 Bc7 e6+ Kg7 e7 Qd3 Re1 h1Q e8N+ Kf7 Re6 Qhd1 Rg6 Be3 Rb1 a1Q Qe1 Qe4 Qg1 Qee6 Rc1 Qb1 Qf1 Ke7 Qe1 Bd8 Nec7 Qg8 Qf1 Bf2 Bh2 Bh4+ Kf4 Kf7 Rg7+ Kf6 Ke4 Bg5 Qg1 Qa5 Qe1 Re6+ Kd5 Qa7 Nca6 Ba5 Qc3 Qb6 Qa1 Qd3 Rh1 Qbd1 Qc1 Qg6 Bg1 Qd8+ Kc5 Ke5 Bh2+ Ke4 Qa1 Rf6 Qc1 Ne6+ Kc6 Qb6+ Kd7 Nf8+ Ke7 Bd7 Bc7 Bg4 Rh6 Be6 Bh2 Bh3 Rf7 Rg7 Rh8 Rh7 Rg7
rN1n4/3n2rP/1NRpqb1k/3r4/N3NnQ1/n2P1b2/KP3P1q/1B3N1R b - - 0 1 legal: proof: e4 f5 exf5 b5 a4 c6 axb5 Na6 bxc6 Nb8 g4 h5 d3 hxg4 Bh6 e5 Ke2 e4 Bc1 e3 Bd2 exd2 h4 Kf7 c4 g5 h5 Kg7 c5 a5 f6+ Kh6 c7 a4 f7 g3 c6 a3 Rh3 d6 Rh1 g2 Nh3 g1Q Qa4 d1N Kd2 a2 Kc2 g4 Kb3 g3 Bg2 Bg4 c8N Qh2 c7 Be7 f8N Bf3 Nb6 Nd7 c8N Bf6 Qg4 Qe8 Nd2 Ne3 Nf1 Nd5 Na4 Nge7 Ncb6 Nf4 Rc1 a1N+ Ka2 Nc6 Ng5 Nd8 Rc6 Nc2 Ne4 Na3 Bh3 Rh7 Bg2 Rg7 Bh3 Ne5 Nfd7 g2 Nb8 g1R Bg2 Nd7 Bh3 Kh7 h6 Rg5 Bg2 Kg6 h7 Kh6 Bh3 Qe5 Qg2 Qe8 Be6 Rd5 Qg4 Qg8 Qf5 Rg7 Qg4 Rb5 Bb3 Rd5 Bc2 Qe6 Bb1
3rN2R/n7/k1PP1qq1/4pB2/R4R1N/q3n2n/qPPr2R1/2RQKb1r b - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 d4 gxh4 Bf4 c5 e3 f6 Bh2 Bg7 dxc5 d4 Be5 d3 Nd2 Bh6 Nb1 Bf4 Bd6 Be5 Bc7 Bd4 Be5 fxe5 exd4 Qd7 Na3 Qd6 Nb1 Qd8 f4 Kd7 g4 Kc7 d5 Kb7 d6 a5 g5 h5 b6 h3 g6 d2+ Ke2 e4 f5 e5 g7 a4 f6 e3 f7 a3 f8R h4 Rf2 a2 Nf3 h2 Rg2 h3 Rhg1 h1R Nh4 h2 Qc1 d1N Na3 Bh3 Rg4 Nc6 Rd4 Qf6 Rb1 a1Q Ng2 Ka6 b7 Rd8 b8R Na7 c6 Nf2 Nh4 Nh6 g8R Nhg4 Rg7 Qa2 Ke1+ e2 Ra1 Ne3 Qd1 Bg2 Rc1 Nh3 Rgg4 Rh5 Ra8 Rf5 Nb5 Rf2 Rg8 Qg6 Rf4 Qf6 Re8 Qg6 Kd2 Qf6 Rh8 e1Q+ Kd3 Qb4 Nc7+ Ka5 Be2 Qba3+ Kd2 Bf1 Ke1 Qg6 Bh5 Rd2 Ne8 Ka6 Rg3 Rg1 Rg2 h1Q Bf3 Qh2 Bh5 Rh1 Bg4 Qf6 Bf5 Qg1 Rh2 Qgg7 Rg2 Qfg6 Rb8 Qe7 Rbb4 Qef6 Ra4+
2Br4/2KRn2B/3p2P1/1b4Bq/bNPQq1BP/1q4R1/pb1Pk2n/5bB1 b - - 0 1 legal: proof: g4 c5 f4 h5 a4 b5 axb5 g5 b4 a5 bxc5 Ra6 f5 Rg6 Nc3 hxg4 fxg6 e6 Nd5 e5 Nf4 exf4 Kf2 Ke7 e4 Ke6 h4 Ke5 c6 Kd4 c7 f5 e5 a4 b6 d6 b7 g3+ Kf3 a3 e6 g2 e7 a2 e8B g4+ Kf2 f3 Kg3 f2 Kf4 g3 Nh3 g1Q Bf7 g2 Qg4 Qe7 Rb1 Bg7 Be2 f1B Nf2 Nh6 Nd3 Bd7 c8B Nc6 b8B Rd8 Nb4 Qe4+ Kg5 f4 Bg8 f3 Rh3 f2 Rg3 Ne7 Bh7 Ba4 Bb2+ Kc5 Qf4 Ng4 Bf6 Nh2 Beg4 Bfb5 Ba7+ Kc4 c3 f1B Re1 Qh1 Bg1 Bh8 Qe5 Qd5 Kf4 Qd3 Bg5 Qb1 Ree3 Qb3 Ke4 Bg7 Bf2 g1Q+ Ref3 Qgg2 Bg1 Qf2 Qf4 Qc5 Qe5 Nc6 Kf5 Ne7+ Ke6 Bh8 Rf7 Qe4 Rg7 Nc6 Rd7 Ne7 Bf4 Qg2 Qg7 Qh5 Bg5 Qf3 Nd5 Kd3 c4 Ke2 Qd4 Be5 Nb4 Bh8 Qd5 Ba1 Qd4 Bb2 Rc7 Rg8 Ra7 Nc6 Kd7 Ne7+ Kc7 Rd8 Kb8 Nd5 Rd7 Ne7 Bf5 Qfg4 Kc7 Qe4 Bg4+
8/Qr1k1pP1/2RqRP2/Kn2P1n1/N1rnnRqb/5PR1/4pR1B/1N3q2 b - - 0 1 legal: proof: h4 g5 a4 gxh4 b4 b5 axb5 c6 g3 Bh6 b6 Bb7 b5 Be3 Bg2 Bc8 b7 Bh6 b6 Bf8 d4 e5 Bf1 d6 f3 Bg4 f4 Bf3 exf3 e4 Bc4 Qe7 Bb5 Qe5 dxe5 cxb5 Kd2 a5 Kc3 h5 f5 e3 g4 d5 g5 a4 g6 e2 g7 h3 Bh6 h4 Ra3 h2 Ra2 b4+ Kd2 b3 Kc3 b2 Ra1 a3 Qc1 a2 Qe3 d4+ Kb3 d3 c4 d2 c5 d1Q+ Kb4 Ra4+ Kb5 Kd7 Bf4 Nf6 Nh3 Be7 Nf2 h3 Rg1 h1N Rg3 h2 Nd3 Rc4 Ka5 Nh7 Qf2 Na6 b8R Bh4 f6 Nc7 b7 Nb5 Re8 Ng5 Re6 Rb8 Qg1 Nf2 c6+ Kd8 c7+ Kd7 c8R h1Q Rc5 Qg2 Rcc6 Nfe4 Qe3 Qh3 Qa7 Qg4 Nc5+ Kd8 Ka6 Qd6 Na4 Kd7 Ka5 Nd4 Nd2 Nb5 Rf1 b1Q Rf2 Qf1 Nb1 a1N Re8 Rc8 b8R+ Rc7 Re6 Nc2 Ra8 Ncd4 Rb8 Nbc3 Rb4 Ncb5 Rh3 Nbc3 Bh2 Ncb5 Rg3 Na3 Rb8 Rb7 Rh8 Nab5 Rh5 Nh3 Rf5 Nhg5 Rf4
R2Rr3/pP1bn2q/1NbB1Kp1/4r2P/p1prBP2/B7/Q1B2BPq/2k5 b - - 0 1 illegal: No proof kernel
q2k1nnn/1rp3r1/2P3PP/q3rN2/B3R1r1/1P1bBQ1q/K7/1NB2BbB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e6 d4 e5 Ra3 Rh7 Rg3 Rh8 dxe5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kd2 d5 Kc3 f5 Kb3 a5 e4 d4 h4 a4+ Ka2 d3 c4 a3 g6 d2 b6 g3 b3 g2 c5 f3 b7 f2 e6 f4 h5 f3 e7 Ra5 e5 Nd7 b8B Ba6 h6 Bd3 Be2 f1Q Rh4 f2 Ba7 Qa8 Qc2 d1R Ka1 a2 Nf3 g1N Bb2 Nh3 Bd4 Ng5 Be3 Nf7 Bc1 Qh3 Re4 f1R Nh4 Rf4 Nf5 Rg4 Qc3 Rb5 Bf1 Rh7 Kb2 Re1 Ka1 Rg7 Bb6 Bc4 Qf3 Nh8 Ba7 Rb7 Kb2 Nb8 Ka3 Kd7 e8B+ Kd8 e6 Bd3 Ba4 Nd7 Kb2 Re3 c6 Re1 Bae3 Bc5 Ka1 Nf8 e7+ Kc8 e8B Kd8 Bf7 Qa5 Bf4 Bg1 Bd5 Qa8 Rc4 Re8 Bfe3 Re5 Re4 Ba6 Kb2 a1Q+ Kc2 Qa3 Kc3 Qc5+ Kb2 Bd3 Ka2 Qca5 Bg2 Qc3 Bh1 Qca5 Bc4 Bc2 Be2 Bd3 Bf1
b1r3qb/4nRrn/1rkq1N2/P1p1rNP1/3N2NK/bBPR2N1/5P2/Q3n3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 h4 g5 hxg5 Ra4 Bd2 Ra7 Bc1 Ra8 e4 f6 e6 Bd6 e5 Bf8 e7 Kf7 Be3 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 e8N h5 a4 d5 g4 b5 a5 b3 g6 b2 g5 b4 e7 b3 g7 d4 Rh3 e4 Rh1 d3 Be2 h4 Nd6 e3 e8N d2+ Kf1 h3 Ne4 h2 Kg2 Rh7 Kg3 Ba3 N8f6 Bb7 Bf1 e2 Nh3 e1B Bc4 Nd7 Bd3 Rc8 Ra2 Ba8 Nbc3 b1R Ne2 b2 Ng4 Ndf6 Ra1 Ne7 g8N Rg7 Nd6 Nh7 N8f6 Qg8 Qc1 d1N Nf5 Ne3 Kh4 Bc3 Neg3 Be5 c3 Nc2 Ng1 Ne1 Ra2 Ra1 Nf3 b1R Re2 Rb6 Bc2 Rab1 Bd1 R1b5 Qa1 Bd4 Bb3 Re5 Rf1 h1Q+ Nfh2 Qhd5 Nf3 Nc2 Rd1 Ne1 Rd3 Qd6 Ree3 Kb7 Re4 c5 Rf4 Kc6 Nd7 Re6 Nfe3 Rgg6 Rf7 Bh8 Ndf6 Rg7 Nef5 Re5 N3d4+
8/2BpbB1n/q1rbb2P/1nb2P2/kQPBN1Br/2RR1n2/2KPr3/r3B3 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 a4 b3 axb3 Na3 c6 Nb5 cxb5 Qf3 b4 Qg4 Ra6 Qd1 Ra8 c4 g5 h4 b5 a4 e5 f4 e4 h6 e3 h7 e2 a5 g4 f6 b2 a6 b1N a7 b3 h5 b2 f5 g3 f7+ Ke7 Bg2 Kd6 Qa4 Kc5 Qa6 Kb4 Qb7 Be7 f8B Qb6 Rh2 Na3 Bg7 b1R Bb2 Ka4 Qd5 b4 Qd4 b3 Nf3 Qa6 Ng5 Bb7 Qc3 Bd5 Rh3 Nf6 Bf3 g2 Bg4 g1B Rd3 Be6 Ne4 Bgc5 h6 Rc8 h8B Nh7 Ra2 Ra1 Be5 Nc6 Bg3 Nd4 Bc7 Rab8 a8B Re8 Bd5 Rb6 Bg3 Rc6 Bc7 Rb1 Ba1 Bcd6 Rb2 Nab5 Rc2 Bc5 Bb2 Ra1 Ba3 Bcd6 Bc5 b2 Ba7 b1R Qb2 Ra3 Rcc3 Rba1 Qb1 Bc5 Bb2 Bed6 Bab8 Be7 Bg3 Bcd6 Bc7 Nf3+ Kf2 e1B+ Ke2 Rb3 Kd1 Bf2 Kc2 Bfc5 Be1 Rg8 Bh5 Rg2 Bg4 Re2 Ba3 Bb6 Bc5 Ba7 Bd4 Bac5 Qb2 Rba3 Bg3 Rh1 Be1 Rh4 Qb1 Bg8 Bf7 Ra1 Bg6 Bd5 Bf7 Be6 Qb4+
5qk1/1Q1PbR2/RpB5/1P1P1BnN/2P3bK/1B1nbBn1/2r1qB2/1b2rn2 b - - 0 1 illegal: No proof kernel
1K3b2/P2bnpQ1/1N1Br2b/kn5P/3B2RB/3BBPn1/1q1r2P1/3R1bqn b - - 0 1 illegal: No proof kernel
qkb2n2/p6r/2nN1Bpq/b1B2qP1/bbQPB3/2NP1P2/6BR/KBr5 b - - 0 1 illegal: No proof kernel
5R2/3r2P1/1q2BKB1/2B3B1/pPq1Qbb1/NNp2Pn1/b1P4n/1nb1rB1k b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bf8 e4 gxh4 b4 f5 e6 Qg5 e5 Qe7 Ra3 Qg5 Re3 Qd8 Re4 fxe4 Kd2 Ke7 Ke3 d5 Kf4 h5 Kf5 c5 g4 a5 b6 d4 g5 a4 g6 e3 g7 h3 b7 e2 Bh6 e1B Rh2 h4 Bf4 d3 Bg2 d2 Kg6 c4 Bd5 c3 Kf5 Nc6 b8B Nf6 Na3 Na7 Qb1 d1B Bc4 Nb5 Bd2 Bg4+ Kg6 Qb6 f3 Ra7 Qa2 Rd7 Re2 h2 Be3 h1Q Bg5 h3 Bh4 h2 Nh3 Bd2 Bd5 Qf1 Qc4 h1N Nf2 Bc1 Bg5 Ng3 Ba7 Rh1 Qe4 Ba6 Re1 Qc4 Nd3 Bb7 Re2 Re1 Nc5 Ba6 Nb3 Bc8 Nb1 Na3 Rh2 Bb7 Rh8 Ba8 Bc6 Bb7 Bb5 Bd5 Rg8 Qcc5 Bf1 Qc4 N1d2 Nb1 Rh8 Kd8 e7+ Kc7 e8B Bd6 e6 Bf4 e7 Kd6 Bf7 Bde6 e8B Bd5 Qd3 Ke5 Rf8 Bde6 Nd4 Bd5 Nb5 Bde6 Na3 Bd5 Qf5+ Kd4 Nb5+ Ke3 Nb3 Kf2 Na3 Kg1 Qe4 Kh1 Be6 Qc8 Na1 Ba2 Nb3 Qc4 B8f7 Bh3 Be8 Ng4 Bf7 Nh2 Kf6 Bg4 Bg6 Qba6 Bf2 Qb6 Bc5
1b1Nb2q/2pR4/nBN4P/NpPK1Qk1/1N6/5rn1/r1PRqP1n/N1n3r1 b - - 0 1 illegal: No proof kernel
1nb3Q1/2q3nB/Br2B3/P1p1P3/P1B3Kp/2PbB1R1/3b4/NkbrN1qq b - - 0 1 illegal: No proof kernel
b3N3/2QR1n2/1p1qRn1p/p1N1bB1P/1rq2N1K/2PPr3/rPN1kN2/7n b - - 0 2 legal: proof: e4 d5 f4 dxe4 a4 b5 axb5 Qd7 Qg4 Qd4 Qd1 Qd8 b6 g5 fxg5 Nf6 d3 Bh3 b7 Ng8 Be3 Bc8 Bb6 cxb6 Kf2 Kd7 Kg3 Kd6 h4 Kc5 g6 Kd4 g7 Ke3 c3 e5 Ra3 f5 Qh5 f4+ Kh2 f3 Kg3 f2 Nh3 Nf6 g8N Nc6 b8N Bg7 Na6 Bb7 Ne7 Qd6 Qf5 Nd8 Qd7 Nf7 Qc7 h6 h5 Rhc8 Be2 f1N+ Kh4 Ng3 Re1 Nh1 g4 Rd8 g5 Rdc8 Qb8 Rc4 g6 Rb4 Nc5 a6 Ra5 Ra7 Qc8 Ba8 Na3 Kd2 Qd7 e3+ Bg4 e2 Nf2 e4 Qc7 e3 Nd5 Bh8 Nf4 Bg7 Rc1 e1Q Bf5 e2 Nc2 Qg1 Rf1 e1R Ra1 Re8 Rfe1 Re3 Ra5 Bh8 g7 Qg2 g8N Qgd5 Ra3 Qc4 Raa1 Rf3 Re6 Re3 Rg1 Bg7 Rg4 Bh8 N4h3 Ke2 Rd4 Ne8 Nf6 Bg7 N6g4 Be5 Rd5 Nf6 Rd4 Qe7 Rd7 Qd6 Nf4+ Kf3 N4h3 Ne4 Nf6 Ke2 Ne8 Nf6+ Nce4 Rb7 Qb8 Rc7 Qc8 Rc5 Qc7 Ra5 Qc8 Ra2 Qc7 Bf4 Nc5 a5 Ree7 Bh2+ Re4 Bf4 Re6 Be5+ Nf4+
2b1KRr1/4P3/4nQ2/rk1N1p1p/n1B2PR1/1Pp2b2/2PR2qR/qR2B1qn b - - 1 2 illegal: No possible last move, all moves rejected
2N3bq/R3q2Q/4p3/NB2bPn1/1k1p1BrN/2qPP1Nn/p1qPN1K1/5r2 b - - 1 2 legal: proof: b4 b5 g4 f5 g5 f4 g6 c6 a4 Qa5 axb5 Qa3 Ra2 Qd3 Ra3 hxg6 Rb3 g5 Rc3 g4 Ra3 Qh7 Rg3 Qd3 cxd3 fxg3 f4 d5 h4 Kd7 e3 Kd6 b6 a5 f5 g5 h5 d4 h6 g2 Kf2 c5 b7 a4 b5 a3 b6 a2 h7 g3+ Kf3 c4 Nc3 Kc5 Rh2 g4+ Kf4 Nf6 Rh1 Nbd7 b8N Ne5 b7 Nd5+ Ke4 Nf4 Nc6 Nh3 b8N Be6 Nd8 Nf7 Be2 Nfg5+ Ke5 Bg8 Ne4+ Kb4 Qc2 c3 Nf7 e6 Nfd6 Be7 Qd1 c2 Nc8 Bd8 Bb2 c1Q Bf3 Qc3 Ne2 g1Q Qf1 g2 N4g3 Ba5 Bc6 Qh2 Bb5 g1Q Qb1 Qd1 Nc6+ Kb3 Qc1 Qdc2 Ba3 Bc7+ Bd6 Ra7 Qd1 Bb8 Qe1 Rg7 Bc7 Rg6 Na5+ Kb4 Qg1 Qg2 Qh2 Qa8 Ne4 g3 Rc1 g2 N4g3 Nf2 Kf4 Nfh3+ Kg4 g1Q Bf4 Be5 Qh1 Ne4+ Kf3 Rg4 Qh2 Qe1 Kg2 Qb7 Qh1 Qe7 Qh2 Neg5 Qh1 Bf7 Qh2 Rg8 h8N Rg7 Ng6 Bg8 Ra1 Qeb1 Nh4 Qbb3 Rh1 Qa4 Bc4 Qae8 Bb5 Qh5 Rc1 Qh8 Nf3 Nf2 Qh7 Rg6 Nh4 Rh6 Nf3 Rh1 Nh4 Rf1 Rb1+ Kc5 Rb3 Nfh3 Ra3 Kb4 Nb7 Nf7 Ra7 Nfg5 Na5
3r4/1rqN1k2/2bPBpnR/6p1/1r1Ppqn1/B2B1P2/2KbrRPB/1Q2B3 b - - 1 2 legal: proof: e4 c5 a4 b5 b4 d5 exd5 Qc7 Nc3 Qxh2 Na2 Bd7 axb5 Be6 b6 Bd7 b5 Bc8 Nb4 cxb4 c4 e5 d4 h5 Kd2 a5 f3 g5 b7 h4 b6 h3 c5 e4 c6 b3 c7 f6 Ra3 a4 Bb2 Bd7 c8B Kf7 Bc4 Qc7 Ra1 a3 Rc1 h2 Bf1 a2 Nh3 a1Q Bd3 Nc6 b8B Nge7 b7 Rh7 Nf4 Ne5 Ne6 Ng4 Rc2 Ng6 Qb1 Bc6 Ba3 b2 Nc5 Rg7 Nd7 Bb4+ Kd1 Qa2 Re2 Bd2 Kc2 Qf4 Rf2 Qc4+ Kd1 Qc5 Bc7 Qcd6 Ba5 Qc7 b8B Rh7 Kc2 Rg7 Qg1 b1R Qe1 Rb4 Qb1 Qa7 Be5 Qc7 d6 Rab8 Nc5 Rg8 Bf5 Rgd8 Nd7 R4b7 Rc1 h1R Bc3 Qe3 Bh2 Re1 Bcb4 Re2 Rh1 Qf4 Ba5 Re3 Bc3 Bc1 Be1 Bd2 Bg1 Re2 Rh6 Rb4 Bh2 R8b7 Be6+
3n1q1r/PP1p3N/4bN2/Q1BRNn1p/2Nr3P/1p1k1N2/3PR2K/1r1qr2b b - - 1 2 legal: proof: e4 b5 b4 f5 exf5 a5 c3 axb4 Bc4 b3 Qf3 g6 Be2 b2 Bf1 b4 Qd1 b3 f4 Bg7 f6 Kf7 Bd3 Ke6 f7 Kd6 f5 Kc6 Bc2 Be5 f6 Bd6 Bf5 Bb4 cxb4 gxf5 Kf1 Kb5 f8N Kc4 g4 h5 Kg2 c5 a4 e5 h4 f4 g5 f3+ Kh2 e4 f7 f2 a5 f1B g6 e3 a6 e2 b5 e1Q b6 Kd3 g7 c4 a7 c3 Nf3 c2 Ra5 Nc6 Na3 b1R Nc4 Bh3 Ng6 Rb8 f8N Nge7 g8N Bb7 Nf6 Be6 N8h7 Nf5 Ba3 c1R Bc5 Qf8 Rf1 Qe2+ Rf2 Nd8 Rg2 Qf1 Re2 Rc8 Qe1 Be4 Qg3 Qd1 b7 Rc6 Qe5 Rd6 Rb5 Rd4 Qc7 Qc2 Qa5 Re1 Be7 Qd1 Rd5 Nf7 Bc5 Nd8 Ng1 Bg2 Nf3 Bh1 Nge5+
1Nk1n3/P1r1Q3/KBn3BP/1p1p1b2/BprpPpNb/1R5r/3P3B/B1q5 b - - 0 1 illegal: No proof kernel
1B1r1Q2/N2pnbpk/2rqRb2/1n3rPq/1n1PPp2/2NpRP2/1NN3N1/2K5 b - - 0 1 illegal: No proof kernel
b1RR1q1q/k2p2R1/pn6/Qpp1nr2/P1q4n/1P4RB/2PB1P2/1rNK1Rb1 b - - 0 1 legal: proof: g4 h5 d4 hxg4 Be3 e5 dxe5 f6 Nd2 f5 Ne4 f4 Ng3 fxg3 Bf4 Nh6 Bc1 Ng8 e4 c5 a4 b5 h4 g5 e6 g2 e5 a6 h5 g3 e7 g4 h6 Nf6 b3 Bb7 h7 Nc6 Kd2 Nd5 Nf3 g1N Bc4 g2 Rb1 g3 Ng5 Nb6 Rh6 Nf3+ Ke2 g1Q Nf7 g2 Qe1 Nh4 Kd1 Qf1 Bd2 g1Q Be6 Qc4 Bh3 Qg7 Rg6 Rg8 Rg3 Qh8 Ra1 Rg5 Rc1 Rf5 Rb1 Bg7 Rc1 Qf8 h8R Rc8 Rh5 Ba8 Rh7 Bh6 Rhg7 Bf4 Ng5 Rb8 Ne6 Qh8 Nd4 Rc8 Rg2 Bh2 Ne2 Bg1 R2g6 Nd4 Ra1 Ndf3 Rg3 Rc6 Nc1 Rh6 Qe3 Qb8 Qc3 Qd6 Qa5 Qf6 R7g5 Qff8 Rg7 Rhh5 R3g6 Rhg5 Rb1 Rg2 Rg3 Rh2 Ra1 Rh1 Na2 Qhg8 Kc1 Qh8 Rg8 Kf7 R8g7+ Ke6 e8R+ Kd5 e6 Kc6 e7 Kb7 Rc8 Ka7 e8R Ne5 Red8 Bh2+ Kb2 Re1 Rc1 Re2 Rf1 Bg1 Kc1 Re4 Bg5 Re1+ Kd2 Rb1 Nc1 Qfg8 Kd1 Qf8 Bd2
3b2q1/3P4/2N5/r1n2PPN/B1BnBPp1/1BN3p1/1b3rR1/n2kqQK1 b - - 0 1 illegal: No possible last move
kr1N2b1/2rPqp2/P1prB1BB/PNQB4/6Pq/1K1pbNq1/1R6/8 b - - 0 1 legal: proof: d4 g5 b4 e5 dxe5 a5 e4 d5 c4 b5 h4 d4 a4 Nf6 bxa5 Nd5 cxd5 Nd7 f4 gxf4 a6 Nc5 a5 Ne6 Ra4 Ng5 hxg5 bxa4 Kd2 Kd7 Kc2 h5 g4 c6 g6 Kc7 e6 Kb8 g7 h4 g8B a3 d6 h3 e7 h2 e8N a2 e5 a1Q e6 f3 e7 d3+ Kb3 f2 Nc3 Ra7 Nf3 Bg7 Nc7 Bh6 e8B Bf5 Bd7 Qe7 Be6 Bh7 d7 Be3 Bg2 f1R N3b5 Qe5 Qc2 Qg3 Qc5 Re1 Rf1 h1Q Rf2 Qhh4 Rb2 Rf1 Ne5 Rf2 Bgd5 Rf6 Nf3 Rh6 Bf5 Rb7 Ne6 Ka8 Nd8 Rd6 Bfe6 Rc7 Bd2 Bg6 Bh7 Be4 Nb7 Rb8 Bg6 Bf5 Nd8 Be4 Bh5 Bh7 Bg6 Bg8 Bc1 Bg1 Bg5 Be3 Bh6
3N4/1KBB1R1b/1P1bq3/4B1b1/1N1q1rr1/1P2P3/r1rnr2P/k2Bn1NQ b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 e5 f4 exf4 Ra2 g5 Qc2 h4 Ra3 h3 Qh7 g4 Rf3 gxf3 Nxh3 Bd7 Ng1 Bc8 Kf2 Kd7 g4 Kd6 d4 f5 g5 c5 b3 a5 b6 a4 g6 a3 e3 a2 g7 a1B Nc3 c4 Qh4 Nd7 Qh5 Nc5 Ba3 Nf6 g8B Ne4+ Ke1 f2+ Ke2 f3+ Kd1 f4 Kc2 Bf5 Bh3 f1R Nce2 c3 Bh7 f2 Qe8 f3 Bg8 Re1 Be6 f1R Nc1 f2 Bg4 Rg8 Qa4 Bh7 Bd7 Nd2+ Nd3 Re2 Bb2 Be7 Qa2 Bg5 Qb1 Ra2 Bh5 Rg6 Nb4 Nd3 Qd1 Qf6 Qe1 Qe6 Qb1 Ke7 d6+ Kf6 d5 Ke5 Qd1 Ke4 Qb1 Rd1 Qc1 f1Q Bg4 Rde1 Bh5 Rf2 Bd1 Rf4 Qb1 Re2 Qc1 Ne5 Qb1 Nef3 Qc1 Kf5 Kd3 c2 Be5 Bb2 Qb1 Ba3 Kc3 Ke4 Qc1 Nb1+ Kc4 Nbd2+ Kc5 Ne1 Kc6 Qf3 Kb7 Qfg4 Nf3 Qh4 Rf1 Qhg4 Qa1 c1R Ng1 Rcc2 Qc1 Qh4 Rf3 Rg4 Rf7 Rf4 Bc8 Rg7 d7 Rg8 d8B Rg6 Nc6 Kd3 Bd7 Bd6 Bc7 Qhg4 Nd4 Kc3 Nc6+ Rd4 Nb4 Rf6 Qa3 Rf4 Qa7 Kb2 Qa8 Bf8 d6 Ka1 Bb5 Bfe7 d7 Bd6 d8N Qh4 Bd7 Qhg4 Qa4 Qh4 Qc6 Rg4 Bg3 Rdf4 Qg2 Qhh6 Qh1 Qg7 Bc8 Qd4 Bd7 Rf1 Be5 Rff2 Bf6 Rff4 Be5
r2nn3/Q5b1/qPP3BN/1N1r1r2/k2q2n1/2B1NP1r/1KP1rBR1/1n4B1 b - - 0 1 legal: proof: f4 c5 e4 h5 d4 b5 dxc5 f5 b4 fxe4 a4 Bb7 axb5 Bd5 Ra6 Bc4 Rg6 Be2 Rg4 Bf3 gxf3 hxg4 Kd2 a5 Kc3 d5 h4 Kd7 b6 Kc6 f5 e5 b7 g5 f6 a4 h5 g3 f7 g4 h6 a3 h7 d4+ Kb3 d3 Bb2 Kb5 Ka2 e3 Rh2 e2 Kb3 e1N Bg2 d2 Bf1+ Nd3 Be2 e4 Qf1 d1N Rh3 a2 Rh1 a1Q Qg2 e3 Nh3 Qd4 Bc3 Nc6 b8B Bg7 f8B Qa6 Nf4 Nd8 c6 Nf6 Bc5 Ne8 Qf2 g2 Rh2 g1R Bba7 g3 Nd5 g2 Bcb6 Rf8 h8N Rf5 Nf7 Rh1 Nh6 g1R Rg2 Rh3 Bf1 e2 Ne3 e1R Bc5 Qc8 Ka2 Qb7 Na3+ Ka4 b5 Ne5 Bd3 Ng4 Be4 Rd5 Bg6 Re2 Kb1 Rge1 Qg1 Qa6 Bab6 Ndf2+ Kb2 Ne4 Ba7 Qe5 B5d4 Nd2 Bac5 Rd1 b6 Qf6 Nb5 Rf5 Qh2 Nb1 Qc7 Qd6 Qa7 Rd3 Bf6 Rdd2 Bh4 Rdd5 Bf2 Qf4 Bd6 Qe4 Bh2 Qd4 Bhg1
2B1N3/2Prq3/4NRn1/2q2B1K/1P1Bb3/1Ppr2Pb/1nb2qkQ/nB4N1 b - - 0 1 illegal: No possible last move
kn1Br1b1/Pr2P2n/6b1/2Q1r3/1Bq1b3/n1B1RBRn/2NKP1pP/6R1 b - - 0 1 legal: proof: f4 e5 c4 a5 Nc3 f5 b4 axb4 g3 d5 cxd5 Bc5 Ne4 h5 Nf2 Be3 Ng4 hxg4 fxe5 f4 Nh3 f3 Ng1 Bf4 gxf4 Rh7 Qb3 Rh5 Qd1 Rh8 a4 Kd7 d4 g5 f5 c5 a5 Kc7 e6 b5 e7 Kb7 f6 b3 d6 b2 d7 b1B f7 b4 f8B b3 d5 f2+ Kd2 b2 d6 g3 Ra2 g2 Ra4 g4 Qe1 g3 Rh4 c4 Nf3 g1N Ke3 c3 Ra4 c2 Kd2 Qc7 d8R Qc4 d7 Ra7 a6+ Ka8 Ra5 Nf6 Rg5 Rb7 a7 Nh3 Bg2 f1B Qf2 Nh7 Bg7 Re8 Ne1 Ba2 Bc6 Bg2 Bc3 Be4 Rg1 g2 Rg3 Bg6 Qc5 b1N+ Ke3 Na3 Kd2 Bb3 Bf3 Be4 B1b2 c1R Bb4 Rc3 Nc2 Re3 B2c3 Bg6 Bc6 Re5 Re3 Ba2 Bf3 Bb1 Ne1 Bbe4 Nc2 Rh8 Re8 Rf8 d8B Be6 Bb6 Rh8 Rg8 Bef7 Rg7 Re8 Bc7 Bg8 Bd8 Bgf5 Rg5 Bg6 Rg3
1B1r2q1/2nnkN1r/3NB2P/2P2P2/3r2BQ/Kbrpr3/1PB1R1b1/4q1N1 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 g3 b5 axb5 e5 fxe5 Kf7 Ra2 Ke7 Ra1 Ke8 Kd2 h5 Nf3 f4 Ke1 Be7 Ng1 f3 Ra6 Bg5 Rg6 Bf4 Rg4 hxg4 gxf4 Qe7 Nd2 Qg5 Nb1 Qd8 Nh3 g5 Kd2 a5 e4 d5 c4 g3 Kc2 g2 Kb3 g1R f5 f2 e6 g4 c5 g3 b6 g2 b7 Nf6 e7 Bd7 e5 Rh5 Nc3 Na6 b8N Rh7 Qg4 Be6 Bc4 f1B Nc6 Nd7 Nb5 a4+ Ka2 a3 Bf4 Kf7 e8B+ Kf8 Kb3 a2 Bh5 a1R Bg3 Qg5 Nd8 Qg8 Nf7 Rc1 Ka3 Ke7 Bb3 Rc4 Bc2 Rd8 Qf4 d3 Qh6 d4 Bg4 d2 Bf4 Bd5 e6 d1R Bb8 Nc7 Nbd6 Rd2 Qh5 Kf6 e7 Be6 e8B Ke7 Ne5 Bd5 Bf7 Re2 Be6 Re3+ Bb3 d3 Nef7 Rd4 Bbd1 Be2 Ba4 Rc1 Re1 Bef3 Re2 Rcc4 Bc2 g1Q Qh6 Qg3 Ng1 Bg2 h4 Qe1 h5 Rc3+ Bb3 Bc4 Qg5+ Kf8 h6 Bcd5 Qh5 Ke7 Qh3 Rc1 Bd1 Bb3 Qh1 Rcc4 Bc2 Rc3 Qh4+
b4N2/1R3n1K/1N2pPn1/2nRR3/2B5/1kr1PPNb/4P2Q/nNnq1bn1 b - - 0 1 legal: proof: c4 b5 b4 f5 g4 a5 gxf5 axb4 Na3 b3 Nb1 b4 Bh3 Ra7 Bf1 Ra5 Ba3 h6 Bb2 e6 Bf6 Bc5 Bg5 Rb5 cxb5 Be3 dxe3 hxg5 Kd2 Ke7 Kd3 Kd6 Ke4+ Kc5 a4 Kc4 h4 c5 b6 d5+ Ke5 d4 f6 b2 a5 g4 a6 g5 f3 g3 a7 d3 a8R g2 h5 b3 b7 g4 h6 g3 h7 d2 Rh2 Nd7+ Ke4 Ne7 b8N Ng6 Rh4 Bb7+ Nc6 Re8 R8a5 Ba8 Qe1 d1B Nc3 b1N h8N b2 R1a4+ Kb3 Nh3 g1N Rh7 c4 Nf4 g2 Qg3 Na3 Re5 Nh3 Qh2 g1N Nb1 c3 Rd4 c2 Nd5 c1N Nce7 Nc2 Nf5 Na1 Ng3 Rg8 Nf7 Rf8 Ng5 Re8 Re7 Bc2+ Rd3+ Ka2 Nh7 Nc5+ Kd4 Rh8 Nf8 Ng5 Rb7 Nf7 Bh3 Rg8 Rd2 Bf5 Bg4 Rg7 Bh5 Bh3 Bg4 Ngh8 Bf5 Ng6 Bd3 Bf1 Ba6 Qd7 Rd3 Qa4+ Bc4+ Qb3 Nb6 Rg8 Na3 b1B Rd2+ Bc2 Nb1 Kb2 Rd1 Bf5 Rd3 B5h3 Rd1 Na4 Ke4 Rh8 Rdd5 Qd1 Nh7 Rc8 Nf8 Ngh8 Kf4 Nc5 Bb5 Kb3 Ba6 Nh6 Kg5 Ng6 Kh5 Nf7 Bb5 Nd6 Kh6 Nf7+ Kg7 Ne4 Bd3 Rc3 Kh7 Nc5 Bc4+
2nNb1qq/n3N3/2BR2rP/bB1p2Qr/1PrNB3/3P1P2/2nKp2k/2B5 b - - 0 1 legal: proof: Nf3 b5 Ng1 f5 a3 c5 b3 b4 axb4 c4 bxc4 f4 Na3 f3 exf3 Kf7 Nb1 Ke8 Nh3 g5 Ng1 g4 Ba3 g3 Bb2 Bg7 Bc1 Bf8 Ke2 gxf2 g4 h5 g5 Na6 Ra5 Nc7 Rd5 Na6 Rd4 Nb8 Rg4 hxg4 h4 Kf7 g6+ Ke6 c3 Ke5 g7 Kf4 c5 Kg3 h5 a5 d3 e5 c4 d5 c6 e4 c7 a4 c5 a3 c6 a2 Na3 a1Q Rh2 e3 Qd2 Bc5 Nc4 Bb6 Nd6 Ba5 Nb7 Ne7 g8N Bd7 c8B Be8 c7 Nbc6 Bf5 Nc8 Ne7 N6a7 Bh3 f1N Be4 Rh7 Kd1 Qh8 Ke1 Rh6 Re2 Rg6 h6 Rg5 Kd1 Rh5 Re1 Rb8 Ne2+ Kh2 Kc2 g3 Nd4+ g2 Bd7 Ra8 Bb5 e2 Qg5 Ne3+ Kd2 Nc2 Rg1 Bd7 Bc6 Qdg8 Nd8 Be8 Bb5 Rb8 Bc6 Rb6 Bb5 Rg6 Bc6 Nb6 Bb5 Rc6 c8B Rc4 Bb7 Nbc8 B7c6 Qgg7 Rd1 g1R Re1 Rg4 Rg1 Qgg8 Rg3 Rf4 Rg4 Rf6 Rf4 Rg6 Rf6 Ne1 Re6 Nc2 Rd6
2NrB2K/P1N2p1b/5B2/8/nNBRnP1B/PPpn3r/2Q1r1q1/3b1n1k b - - 0 1 legal: proof: f4 a5 e4 g5 e5 b5 b3 g4 c3 b4 cxb4 d6 bxa5 dxe5 Bc4 e4 Bb5+ Qd7 Bf1 Qd8 h4 Bb7 a3 Bh6 g3 Bg5 hxg5 Qd3 g6 Bd5 Ra2 Qc4 Rc2 Be6 Rc3 Qd5 Rf3 gxf3 g4 Bc8 g5 Qd8 Kf2 Kd7 Kg3 Kd6 Kh4 Kd5 Kh5 c5 d4 e5 g7 c4 a6 f2 a7 e3 g6 Ke4 d5 e2 d6 e1N d7 Nf6+ Kh6 Nd3 g8N Na6 Kg7 h5 Bb2 h4 Qc2 h3 Qc3 h2 Ne2 Kf3 Qc2 e4 Nec3 e3 Nb5 e2 Ne7 e1R N1c3 Nac5 Nc7 Re2 Na2 Rh3 Nb4 Nfe4 Bf6 c3 Bg2+ Kg3 Rd1 h1B Rd2 Qe8 d8B Bg4 Nc8 Kh2 Bh4 f1N Bdf6 Qb5 Kh8 Na4 g7 Qb7 g8B Bf5 Bf3 Bh7 Bg4 Bf3 Bd7 Kh1 Be8 Ndb2 Rd4 Nd3 Nb6 Rd8 Nc8 Bg6 Bh7 Qd5 Qa2 Qg5 Qd2 Qg2 Qc2 Bf5 Bg6 B3g4 Bh5 Bh7 Bg6 Re1 Bf5 Bd1 Be6 Re2 Bc4
Q3B1K1/b2nq3/2pN2pq/P4rN1/1N1k4/P2q1n1B/B1r1PP1B/r2R3n b - - 0 1 legal: proof: g4 a5 b4 b5 bxa5 e5 h4 b4 d4 g6 dxe5 Be7 c4 Bf8 g5 Ba6 a3 Bb5 cxb5 Ra7 h5 gxh5 g6 h4 g7 Ra6 Rh3 Qg5 Rg3 Qd8 Rg6 fxg6 Qd3 Re6 Bg2 Ne7 Kd2 Qc8 Nh3 Rc6 Bb2 Ra6 Nc3 Nd5 Rh1 Bd6 Nb1 Bf8 Ng1 Ne7 Bc1 Ng8 Ke1 Ra7 Qd1 Ra8 Bf1 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 d5 b6 h5 b7 h3 Bg5 h4 Nd2 h2 Nc4 h3 Nd6 b3 Qe1 b2 Kc5 b1R Bg2 d4 Be4 d3 Qc1 d2 Qf1 d1Q Bh4 Qd3 Nf3 Ra1 Bg3 Ne7 Qg2 Rh5 Rd1 h1Q Bh2 Rf5 Bc6 Qe8 g8B+ Qf7 Bb5 Nec6 Ba4 Nd4 Ng5+ Ke7 Qd5 Nf3 e6 Kf6 e7 Nd7+ Kc6 Ra7 e8B Qe7 b8N Rb7 Be6 Rb2 Bb3 Rc2+ Bc4 Bh6 Na6 Bf8 Nb4 Bh6 Ngf7 Be3 Ng5 Bc5 Ba2 Bd4+ Kb7 Ba7 Kc8 c6 Qc4 Rf4 Qa6 Ke5 Qb7 Kd4 Qa8 Rf5 Kc7 Qh7 Kd8 Qh6 Ke7 Qg2 Bg3 h2 Bf4 h1N Bh2 Rb5 Kf7 Rf5+ Kg8 Qgh3 Nd5 Q3h4 Nb4 Qe4 Bec4 Qe7 Be6 Rd5 Bg4 Rf5 Bh3
1r1R1b2/3K2bk/1r1bP1pP/N1qN3q/nR5N/bN2p1P1/1b1PQ1R1/4B3 b - - 0 1 legal: proof: e4 e5 f4 h5 a4 d5 c4 b5 axb5 h4 g3 h3 Ke2 Be6 Bg2 hxg2 Ke1 Nc6 Ra5 dxc4 Ra1 Bd5 exd5 e4 Ra6 Kd7 Ra1 Ne5 fxe5 Ke8 Kf2 c5 Ke3 a5 Kf4 f5 h4 Kf7 b4 Kg6 b6 c3 b7 a4 b8R a3 e6 a2 Ke5 f4 b5 c2 h5+ Kh7 h6 c4 b6 c3 d6 g6 b7 f3 d7 f2 Qf1 Qh4 d8N Nf6 Ba3 c1B Qe2 f1Q Nf3 g1B Bc5 c2 Rh2 Ba3 Nc6 c1B Rd8 Rb8 Na5 Qf2 Nc3 Bcb2 Nb3 Nd5 Rg2 Nb6 Rb1 a1B Be3 Qh3 Nh4 Na4 Kd5 Qff5+ Kc6 Qc5+ Kd7 Qhf5 Bf2 Qh5 Be1 Be3 Qb5 Bf4 Nd5 e3 Qe2 Bbg7 Rb2 B4d6 Rb1 Ra8 b8N B1b2 Nc6 Rb8 Nca5 Rb6 Rc1 Rg8 Rc4 Bfe7 Ra8 Rgb8 Rb4 Bef8 Nc1 Rb5 Ncb3 R8b6 Rc8 Rb8 Re8 R5b6 Rd8
Qr2r1N1/1p1n2P1/N2rP1qB/2qpk3/3R2r1/1Bq3N1/1P5P/B2nNKn1 b - - 0 1 illegal: Other
1q5N/N1knQnn1/P1R2Pp1/1R2pqPP/4pRrr/2N3Bq/1N1b4/3K4 b - - 0 1 legal: proof: c4 d5 cxd5 Kd7 b4 h5 e4 a5 Qxh5 axb4 d6 Nf6 Qh7 Kc6 d7 Ng8 d4 Kd6 d5 f5 Bd3 b6 Bc2 Ke5 Bd3 Kf6 d6 Kf7 Bc2 Bb7 Bd3 Bd5 exd5 Ra7 Bc2 Ra8 Be4 fxe4 f4 b5 g4 b3 h4 b4 a4 b2 f5 b3 f6 Qc8 d8N+ Ke8 a5 Kd7 g5 g6 Nf7 Nh6 Ra4 Nf5 Na3 b1Q Kd1 b2 Nc4 Ng7 Ne2 Qd3+ Bd2 Qh3 Nc3 b1Q+ Bc1 e6 Nb2 c5 a6 c4 Rf1 Ra7 Rb4 Rb7 Nb5 c3 Rf4 Qf5 Rb3 Qd3+ Bd2 Qdh3 Be1 Qe8 Bg3 c2+ Ke2 c1N+ Kd1 Ra7 Nc3 Nd3 Rb5 Kc8 d7+ Kc7 d8R Ne5 Rd6 Nbd7 Rdb6 Bb4 Rd6 Qb8 Rdb6 Rf8 Nh8 Nf7 Rd6 e5 Rc6+ Kd8 d6 Rb7 Nb1 Bd2 Nc3 Rb6 Rd5 Rb3 Rb5 Nc5 d7 Rg8 Rd6 Kc7 d8N Nd7 Nc6 Ra3 Na7 Ra1+ Kc2 Rg1 Rdb6 Rg2 Kd1 Rd8 Bh2 Rg4 Bg3 Nf8 Re6 Rd3 h5 Nd7 Qg8 Re3 Qe8 Re2 Reb6 Rh4 Qe7 Rg2 Bh2 Rgg4 Bg3 Qf8 Rd6 Qb8 Rc6#
1b1qnB1R/7P/Q1Rprk2/1q3bPR/pBpPB1r1/5b2/bB3P2/K6N b - - 0 1 illegal: No possible last move, all moves rejected
5r2/1kpPnr1n/2P1B2P/p1PBb3/b1p2N2/5K2/4r1QR/NNBb1Br1 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 c4 e5 f4 Rh6 fxe5 Ra6 g4 hxg4 c5 Rh6 Ra3 Rh3 Rc3 Rh8 Rc4 dxc4 Kf2 Kd7 h4 f5 e4 g5 d4 a5 h5 f4 h6 g3+ Kf3 g2 d5 Nf6 b6 Nh7 d6 Kc6 e6 Kb7 e7 Nc6 e8B Qf6 e5 Bd7 e6 Bg7 e7 Rf8 Rh2 Rf7 Nh3 g1R Qd2 Rg2 Qa2 Re2 b5 Bf5 d7 Bc2 Qb2 Ba4 Qc2 Qd6 Qd2 Be5 Qd5 Rf6 Bf7 Rf8 Be6 R6f7 Qe4 Qd5 e8B Qd6 Qc2 Ne7 Qg6 Qc6+ Qe4 Ka8 b7+ Ka7 b8N Kb7 Kg4 f3 Na6 f2 Qg2 Rg8 Nf4 Rgf8 Kg3 g4 Bd5 Ra2 Nb4 Re2 Kh4 g3 Kg4 Nf5 Kf3 Ne7 Qg1 g2 Nc2 Kb8 Na1 Kb7 Qh1 g1R Qg2 Re4 Bd3 f1B Be6 Re2+ Bd5 Rf5 Bf7 Rf6 Be6 R6f7 Qg7 Bh3 Qg2 Bg4+ Kg3 Re4 Bf1 Bgd1 Kf2 Re2+ Kg3 Bd6 Kf3 Be5 bxc6+
B1k4B/N1PN2P1/1B1r1r1R/q3q1b1/Npb1pp2/3p1P1N/P5b1/qQ4K1 b - - 0 1 legal: proof: d4 a5 e4 g5 b4 d5 Na3 c5 Nb1 g4 Qd3 g3 Qf3 Nd7 Qd1 Nb6 dxc5 axb4 Qe2 d4 Qd1 Nd5 exd5 Be6 Qg4 Bf5 Qd1 Bc8 f3 Bd7 Nd2 Ba4 Rb1 Bd7 Rb3 Bc8 Re3 Ra5 Re2 Ra6 Rf2 gxf2+ Ke2 Ra8 g4 Qb6 h4 Qd8 g5 Nf6 g6 Ne4 Nb1 Be6 Nd2 Ng5 hxg5 Bc8 c4 Kd7 g7 b5 g8N f5 g6 e5 d6 h5 Rh2 f4 Nh3 e4 Nb3 h4 Bb2 Qa5 Qb1 Ba6 c6+ Kc8 c7 Be7 c5 Bg5 Nf6 Rf8 Nd7 Rf6 Rh1 Rb8 Ba1 Rb6 Bc3 Kb7 c8N Rc6 Na7 Rb6 Bg2 f1B+ Kf2 d3 Kg1 Rc6 Nd2 b3 Nc4 b4 Ncb6 b2 Na4 Bc4 Bd4 Re6 Bh8 Rf6 g7 Ra6 Qc1 b1Q c6+ Ka8 Qb2 Qa1 Qb1 Qd4+ Nf2 Qc3 Bh3 Qce5 Be6 Bg2 Nh3 Rb6 Bd5 Ra6 Ndc5 Kb8 d7 Rb6 d8B Ra6 Nb5 Kc8 Bb6 Rd6 c7 Rf6 Ba8 Rd6 Kf2 Rf6 Ng1 h3 Nd7 h2 Nh3 Rd6 Re1 h1Q Rd1 Qh2 Rh1 Qg3+ Kg1 Qe1+ Kh2 Q1c3 Kg1 Rf6 Nf2 Qa1 Rh6 Rd6 Nh3 Rf6 Bf2 Rac6 Bb6 Rcd6 Na7+
6q1/1kr4N/pNp1P2K/1PnB1r1N/2P3p1/prRr2NR/7P/Q1r2nR1 b - - 0 1 legal: proof: e4 e5 d4 b5 dxe5 g6 a4 bxa4 f4 Ke7 e6 Kf6 e7 Ke6 e5 Bg7 Nd2 Kd5 e6 Kc5 Nb1 Kc6 g3 f5 Be3 Be5 Bd2 Ba6 Bc1 Bd3 fxe5 h6 Bg5 f4 g4 Bf5 gxf5 hxg5 Ke2 d5 Kf3 g4+ Ke2 a3 e8R g5 b4 a6 c4 g3 Kf3 d4 Kg4 f3 f6 d3 e7 f2 e6 g2 f7 d2 f8N Kb7 b5 c6 Nh7 Nh6+ Kh5 g4 Nc3 Nf5 Nge2 g1R Na4 Ne3 Kh6 Nd7 Bg2 f1R Nb6 Rc8 Rc1 Rf5 Ng3 Nf1 Bd5 Nc5 Rc3 Rc7 Qa1 d1R Rg8 Rd3 e8N Qa8 Nf6 Qe8 Rg7 Rf8 Rg8 Rff7 Rg6 Qg8 Nfh5 Rff3 Rf6 Rfe3 Rf3 Rf5 Rc1 Rb3 Rc3 Rd3 Re3 Rg2 Rg1 Rc2 Ne2 Rc1 Rh3 Rcb1 Neg3 Re1 Rh1 Rc1 Rg1
Nn1Q1N2/4n1BP/1qq1p2b/1R1P1N1R/1R2P2K/r1rR1k2/1n1Pb1q1/2b2r2 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 fxg4 Qb3 h4 Bg2 h3 Qd1 hxg2 e4 Kf7 h4 Kg6 b4 Kh5 f4 g5 Kf2 a5 Kg3 c5 f5 e6 b6 c4 f6 c3 b7 c2 b5 a4 b6 a3 f7 a2 Bb2 c1B Rh2 Qd7 Ba3 Ne7 Qb3 Qc6 Rh1 Bh6 Nf3 g1N f8N Nh3 Nc3 Nf2 Na4 Nd1 Nd4 Nb2 Nf5 Bd7 Rb1 a1R Bc5 Be8 Bd4 Ra3 Qe3 Rc3 Bg7 Ra5 Ra1 Ra7 Ra3 Bd7 Kh2 g3+ Kh3 g2 Rb3 g1Q Qg3 Rc4 Rd3 Rc3 Qc7 Qd4 Qd8 g4+ Kg2 g3 Kh3 g2 Rh2 Na6 b8R g1Q b7 Qb4 Nb6 Qbd6 Ng6 Rf8 Na8 Qcb6 Rh1 Bb5 Rh2 Rf7 Nf8 Qh1 Rc8 Rf6 Rc5 Qdc6 b8R Bc4 Rb7 Nb8 Rb5 Raa3 Kg3 Rg6+ Kh3 Rg1 Rb4 Rf1 Kg3 Qbc5 R7b5 Q5b6 Re3 Be2 Rd3 Be3 Nd7 Kg6 h5+ Kg5 h6 Qg1+ Kh3 Kf4 h7 Kf3 Nf8 Qf2 Rg2 Qg1 Rg5 Qg2+ Kh4 Nc8 Rh5 Ne7 Rdd4 Bh6 Rd3+
1N1r3R/3Qb1rP/7p/N3brqP/Pnq1RrR1/P1k3K1/b3N1Nn/1r3B2 b - - 0 1 illegal: No proof kernel
2KRb2n/qB2pnN1/1B1N1bNB/3B1Q2/P6P/1r1nP1r1/4nPq1/1n3q1k b - - 0 1 legal: proof: d4 a5 b4 axb4 a4 f5 g4 c5 gxf5 h5 dxc5 Rh7 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Kd2 Kf7 Ke3 Kf6 Kf4 d5 h4 b5 c4 g5+ Ke3 Ke5 f6 g3 c6 g2 f7 b3 c7 b2 c5 g4 c6 b4 Qe1 d4+ Kd3 g3 Kc4 Ke4 Kc5 b3 Kb6 d3 e3 d2 Na3 b1N Bb5 d1N Ba6 b2 Qc3 Nh6 Bb7 Bd7 Nc4 Be8 Nf3 g1N Qe1 g2 Nce5 Bg7 f8B Ne2 Qf1 g1Q Qe1 Rg8 Ng6 Qg2 Bd2 Bf6 Nd4 Qd7 c8N Nf7 c7+ Nc6 Nf5 Kf3 Bh6 Nh8 Ng7 Rb8 Ba5 Qd4+ Ka6 Qc5 Ba8 Rb3 Bb6 Qa5+ Kb7 Ne5 Qf1 Nef7 Nd6 Qa7+ Kc8+ Kg4 Rg1 Kh3 Bd5 Kh2 Ngf5 Rg7 Qe1 Rg8 Qa5 Rg7 Nf4 Rg3 Ng6 Na3 Qc5 b1Q Ng7 Nb2 Rd1 Nd3 Qb5 Qc1 Qd7 Qc4 Qf5 Nb1 Ne5 Qc6 Be6 Nec3 Ne4 Nb2 Ng6 Ne2 Rd8 Kh1 Nd6 Qc1 Bc4 Nd3 Bd5 Qa5 Kb8 Qf1 c8B Qa6 Bcb7 Qa7+ Kc8
N7/NrN2kPb/2q4b/2BN2nq/2P3nQ/1qbnpPK1/1B1rP3/1R4bB b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 f5 g4 Ba6 g6 Bc8 b4 Ba6 g5 Bc8 Ra3 Na6 Rg3 Nb8 Rg4 fxg4 c4 e5 f3 a5 Kf2 d5 b6 h5 b5 h4 b7 a4 b6 h3 g7 e4 g6 a3 Bf4 a2 Bd2 a1B Bc3 d3 Bb2 h2 Na3 e3+ Kg2 g3 Qc2 d4 Qc3 d2 Qc1 d1Q Qd2 d3 Bc3 Na6 b8N Nh6 g8N Rh7 b7 Nc5 Bb2 Qf6 Na6 Ng4 b8B Bh6 Ba7 Qb3 Ne7 Bf5 Qd1 d2 Qe1 d1N Nc8 Nc3 Nb5 Nd3 Nb6 Ne4 Nh3 Rb7 g7 Bh7 Nac7+ Kf7 Nf4 Ng5 Nfd5 Rd8 Nba8 Qc6 Bc5 Rd6 Na7 Rd8 Bf6 Bc3 Rg1 Ne6 Kh3 g2 Qh4 h1Q+ Kg3 Ng5 Be5 Bd2 Ba1 Bc3 Bb2 Nge5 Qd4 Qh5 Qh4 Ng4 Rh1 g1B Bg2 Re8 Rh3 Re4 Bh1 Rd4 Rh2 Nf4 Rf2 Rd2 Rf1 Nd3 Rb1
2R1r3/3r3q/1KbQ1RkN/1b2P2N/1np4b/1rNP1bqN/2P2P2/B4nqR b - - 0 1 illegal: No possible last move, all moves rejected
Nn2q3/1r2n3/1Pb2b2/Kp2k3/2B2r2/RP1PrR1n/NPr2r1R/nQN2R2 b - - 0 1 illegal: No proof kernel
N2NR1N1/n2P2b1/q1Br1B1p/P4n1P/nN2P3/K1b1B1k1/3q2bQ/2r1n2b b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 e5 fxe5 Nc6 a4 g5 Ra3 Nb8 Rf3 Bd6 Rf6 Bf8 Rf4 gxf4 h4 Kd7 d4 c5 Kd2 f5 Kc2 b5 Kb2 f3 g4 b3 e3 f2 e6+ Kd6 a5 c4 g5 f4 e7 f3 g6 c3+ Ka3 b2 h5 c2 g7 b4+ Ka2 h6 Ba6 f1Q Qe1 f2 Rh2 b3+ Ka3 Nc6 Bd2 c1B Nf3 Bb7 Ng1 Rc8 Nc3 Na7 Nf3 Bc6 Bb7 Qa6 Rh3 f1B Ne5 Bg2 Qg1 Rc7 Na2 b1N+ Kb4 b2 e8N+ Ke7 d6+ Ke6 d5+ Kf5 Rg3 Ne7 g8N Nc3 d7 b1N d6 Bb2 Nf7 Na3 Rg7 Bce4 Bc6 Na4 Kb3 Bf6 Nb4 Bc3 Rg6 Rc8 Nc7 Nc2 Re6 Kg4 Na8 Ne1 Ka3 Nf5 Re8 Bfg7 Bc1 Qg5 d8B Kg3 Bf6 Bf3 e4 Qd2 Nd8 Rh7 Qd4 Bh1 Qg1+ Bfg2 Ne7 Rh8 d7 Rf8 Ng8 Rf7 Bd4 Rf6 Bb2 Rd6 Bc1 Qdd3 Bce3 Qd2 Bf6 Ba1 Bd5 Rc1 Bc6 Bc3 Qh2+
n3Rq2/2B1Q2k/2BPp1nN/r4r2/Rq1rPBRb/1Pq2b2/1P4r1/2q2R1K b - - 0 1 legal: proof: g4 f5 c4 fxg4 Qc2 h5 Bg2 d5 cxd5 b5 Na3 b4 Bf1 b3 axb3 Qd6 Qd1 Qd8 Nc2 g3 Ne3 Bd7 Ng4 hxg4 Ra6 Bf5 Ra1 Bc8 d4 Kf7 f4 Kg6 e4 c5 h4 a5 d6 a4 d5 g2 Kf2 a3 d7 a2 h5+ Kh7 d6 g5 h6 g3+ Kf3 g4+ Ke3 c4 f5 c3 f6 c2 f7 Na6 Nf3 g1Q+ Kf4 g2 Kg3 Qe3 Kh2 g1R Qe2 g3+ Kh3 g2 Kh2 Qc3 Nd2 Nc7 Qe3 Ra5 Nc4 Na8 Ne5 e6 Qf4 Ne7 Qg5 Ba6 Bb5 Rd1 Rf1 g1R Bc6 Ng6 Qe7 Rg2+ Kh1 Be2 Ng4 Bf3 Bf4 c1Q Rg1 Qc8 d8B Rd4 Bc7 Qb8 Rf1 Qbb4 Rg1 Bg7 f8R Rg8 Re8 Rf8 Rf1 Rf7 Rg8 Bf6 Re8 Bg5 Rg8 Bh4 Rg7+ Kh8 h7 Rff5 Nh6 Ne5 Rb1 a1Q Rg4 Qaa4 Ra1 Ng6 Ra2 Qb8 Ra3 Qab4 Ra4 Qf8 Qd8 Kg7 h8R Qf6 Re8 Qf8 Qf6+ Kh7 Qe7+
3BB3/5p2/1PK2P1b/2bn1Pr1/B3B1br/rnrRqR2/R3P1p1/Nkr1Q3 b - - 0 1 illegal: No proof kernel
bn1b2b1/2PBp1p1/b1qP3P/6P1/1N1r1R2/b1B1RBr1/1R4kr/2BQK2n b - - 0 1 illegal: No proof kernel forced: wxDB
1r1RR2r/1P2r2q/1pKp1bn1/1BP1P2b/N1nr4/3P2R1/Q4RN1/2kbn2N b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 gxh5 Ke7 b6 Ke8 b4 Qe7 b7 Qd8 b5 Qe7 b6 Qe3 Ba3 Qe7 Bc5 Na6 b8N Qf6 b7 Qd8 Bb6 cxb6 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 c4 Kb4 Kd5 g5 e4 f5 h4 f3 h6 d6 d3 f4 h5 f2 e5 g4 h7 g3 h6 g2 c5 f3 Na3 Kc3 Be2 Kb2 Nd7 f1B Nh3 g1R Rc1 f2 Ra1 Rg7 Rg1 Nb4+ Kc4 a5 Kb5 a4 Nb1 a3 Rg4 a2 Qd2+ Nc2 Bf3 Be2 Bc6 f1N Nf4 Re7 Nc3 Ne3 Rf1 a1R Rf2 Qc7 Rg3 Rb8 Ng2 Bh5 Nf6 Nc4 Ng4 Bg7 Na4+ Kb1 Qe2 Ne1 Qa2+ Kc1 Bd7 Bf6 Be8 Qd8 Kc6 Be6 Rff3 Rb1 Nf2 Beg4 Nh1 Rb4 Rf2 Bd1 Bf7 Ne3 Bc4 Qf8 Ba6 Rd4 Bb5 Nc4 Rf1 Qg7 Nh4 Rf7 Ng2 Ne7+ Kc7 Ng6+ Kc6 Rhd8 h8R Ra8 h7 Rab8 Rf2 Rfd7 Rg8 Qf7 h8R Qh7 Rf8 Re7 Rfg8 Rdd7 Rc8 Rd8 Rg8 Rf8 Rd8 Rfe8 Rg7 Rh8 Rgg8 Rg7 Rgf8 Re7 Rfe8
1R3b1r/nb4B1/1Pbn3B/1Pp3KR/1QP1rBpN/4P2r/B3q1R1/4b1kq b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 fxg4 Nc3 h4 Ne4 Qg5 Ng3 hxg3 Qd5 Qh4 Qd1 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 d5 b4 a5 c4 c5 h4 g5+ Ke3 Kf5 f4 a4 e6 d4+ Kd3 g2 h5 g3 h6 Kg4 Ke4 d3 b6 a3 e7 d2 e8R a2 h7 Qd3+ Ke5 Nf6 e3+ Qe2 b5 Ne4 f5 Nd6 Kf6 Bb7 Bb2 Nc6 Rb8 Na7 Qe1 d1B Nf3 g1Q Nh4 g2 Qb4 Kg3 Be5+ Kf2 Bf4 g4 Kg5 Bc6 Rb1 a1B f6 Bc3 f7 Be1 Rb2 Bb7 Rh2 Qh1 Rh3 g1R Bg2 Qd2 Be4 Bf3 Bb1 Qe2 Ba2 Rg3 Rc2 Bfc6 Rd2 Bg7 f8B Kg1 Rh2 Rh3 Rb2 Be5 Bh6 Bg7 Rd2 Re8 h8B Bf8 B8g7 Re4 Ng6 Rf3 Rh5 Rh3 Rd8 Rc8 Nh4 Rc7 Rb8 Rd7 Bc3 Rh7 Bcg7 Rh8 Rc2 Qf1 Rh2 Qe2 Rg2+
1N6/2k2r1q/Pn6/NK2Rbbq/2pN1p2/1B1N3b/nRPbPPq1/r1R4Q b - - 0 2 legal: proof: d4 a5 b4 e5 dxe5 axb4 a4 h5 g4 Qh4 gxh5 Qd8 Ba3 bxa3 Kd2 b5 Kc3 c5 h4 g5 e6 d5 e7 Kd7 e8N f5 a5 a2 h6 f4 h7 b4+ Kd3 b3 h5 d4 Kc4 g4 h6 g3 Nf6+ Kc7 Qc1 g2 Ng4 d3 Qe3 d2 Rh4 d1Q Qe6 b2 Qg6 Q8d5+ Kb5 Ne7 Qh5 Nec6 Na3 Q1d3+ Nc4 Bf5 Rc1 b1B Nf3 g1Q Bg2 a1B Nf6 Ba2 Nd4 Bc3 Nd7 Nb4 a6 Be7 Qf3 Bd2 Rh5 Ra7 Qh3 Bd8 Qh1 Bg5 Bf3 Rg8 h8N Qg2 h7 Bb3 Bg4 Na2 Ng6 Qf7 h8R Rg7 Ndf8 Nd7 Ne5 Nb6 Nfd7 Qdf3 Na5 Bbe6 Nb8 c4 Nd3 Qg8 Bh3 Qh7 Re8 Bc8 Re5 Rg8 Rh6 Qh5 Bg4 Rg7 Bf3 Bh3 Bc6 Bcf5 Be8 Rb7 Rd6 Rf7 Rde6 Nd7+ Rb6 Qf1 Ka4 Qg2 Rh6 Rb1 Rb6 Ra1 Rb2 Nc3+ Kb4 Nb6 Ba4 Na2+ Kb5 Qg8 Bb3 Qgg6 Nc5 Qgh7 Nd3
R7/kq2r3/pR3nB1/3NR2R/BQ1n1P1r/PpBP2b1/bK2nbPq/6b1 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 Na3 g5 Nc4 f4 Ne3 fxe3 hxg5 Bd7 Ne2 Bg4 Ng1 Bc8 f4 Kd7 c4 Kc7 g6 h5 d3 b5 c6 Kb6 g7 e5 a3 a6 c7 e2 Kd2 e1N Kc3 b4+ Kb2 e3 c5+ Ka7 c6 h4 Kb3 h3 Bd2 e2 Bc1 e4 Qd2 e3 Kb2 h2 Ka2 Be6+ Kb2 Ba2 c8B b3 c7 Nc2 Bh3 e1B c8R e2 Bd7 Rh4 Rc6 Nd4 Qb4 Nf6 g8R Qc8 Bd2 Bf2 Re1 Bc5 Bc3 Qb7 Rb6 Nbc6 Rf8 Re8 Rg8 Nb8 Ba4 Re3 Re8 Nbc6 Re5 Bg3 Rc1 e1B Be2 Bef2 Bh5 Ne2 Bg6 Ncd4 Re1 Nc1 Rh5 Re6 Ree5 Re7 Ne2 Bg1 Bd2 B1f2 Nc3 Nce2 Nd5 Bg1 Bc3 B1f2 Re1 h1Q Rh8 Qh2 Reh5 Bg1 Rg8 Ne6 Rc8 Bcf2 Rf8 N6d4 Rb8 Nc1 Ree5 Nce2 Ra8+
2N5/qNKbN1B1/2B1rpnR/r3pPN1/P1P4k/2p4b/PB4Q1/n1b2qn1 b - - 0 1 illegal: No possible last move, all moves rejected
Rb6/2qpbB1n/1Pr1knK1/5n2/1B2ppR1/N1b1P1rP/q1QP1R1B/2B5 b - - 0 2 legal: proof: b4 g5 f4 b5 a4 h6 axb5 Bg7 g4 Be5 c4 Bd4 b6 Bb2 c5 Bg7 b5 Bf8 Nc3 Ba6 c6 Bb7 cxb7 gxf4 Ne4 h5 g5 Rh6 Nf2 Rh8 Ng4 hxg4 Kf2 c5 e3 a5 h3 f5 g6 e5 g7 Ke7 Ba3 a4 Bc4 g3+ Kf3 g2 Bf1 e4+ Ke2 f3+ Kf2 Ra6 Kg3 f2 Kf4 Nc6 Kg5 f4 b8B Nd4 b7 Ke6+ Kg6 c4 Bbd6 c3 b8B c2 Ne2 g1N Bb2 c1B Qc2 a3 Be7 a2 Bh4 Qc7 Bg3 Rc6 b6 Ngf3 Bh2 Ng5 Nc3 Bd6 Nb1 Nh7 Be2 f1Q Bh5 Qa6 Na3 Ngf6 g8R Nf5 Rf1 Qa5 Rg7 Rg8 Rf2 Be7 Bc3 Bb2 Bb4 Rd8 Rg8 Be5 Rg1 a1B Rg4 Bac3 Rf8 Qb7 B8d6 Qc7 Rg8 Ra8 Rb8 Qd5 Rd8 Ra5 Ra8 Qa2 Bdc5 Qd8 Bd4 Bb8 Be5 Qc7 Bd4 Ba1 Bb2 Rb5 Bc1 Bc3 Bc5 Rb1 Bb4 Ra1 Bb2 Rf1 Bc1 Rg1 Bd6 Qb2 Bb4 Nh6 Kg7 Rg3 Be8 Nf5+ Kg6 Qa2 Bf7+
3B3R/2Rr2Q1/b2N4/b1p1qqPP/n4prk/n2P4/NqNp1P2/R2K1Nr1 b - - 0 1 illegal: No proof kernel
2BN1K2/1N4rr/1n2P1b1/N2qpp2/pP1RN1rQ/2B1P3/P5q1/k1nb1b1B b - - 0 2 illegal: No extended proof kernel
1k3B2/2n3R1/2pPp2K/1P1b2r1/3bqP2/1BP1p1BQ/n1RRB1qq/N1br4 b - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 d5 a4 dxe4 axb5 f5 Nc3 e3 Ne4 fxe4 Ke2 Kd7 b4 a5 d4 h5 g4 c6 g6 Kc7 g5 a4 d5 h4 g7 h3 c3 h2 g6 a3 Qd3 a2 Ba3 Be6 Nf3 Qd6 Ne1 Nf6 g8B Ra5 g7 Na6 b6+ Kb8 b7 Nc7 Rd1 a1B Rd2 Bb2 Nc2 Bc1 Na1 Rb5 Rg1 h1Q Rg2 Qdh2 f3 Rc5 b5 Bf7 Rf2 Q1g2 Rc2 Be6 Bf7 Rh5 g8R Rg5 Rg7 Rc4 Bd6 Ra4 Bg8 Rd4 Bg3 Bf7 f4 Be6 d6 Ba2 Bb3 e6 Rd2 Nfd5 Rc2 Ka7 b8B+ Kb7 Ba7 Nb4 Bb6 Kb8 Rd2 Rdd5 Bd4 Be7 Bf6 Bf8 Be7 Rd4 Rf7 Bg7 Bf8 Be5 Rg7 Rd5 Ke1 e2 Qf3 Bd4 Qh5 Bb1 Qh3 Na2 Rc2 Ba3 Kd2 e3+ Kd3 e1Q Rd2 Bc1 Be2 Qeh1 Kc4 Ba7 Rb2 Be4 Rbc2 Rc5+ Kd4 Bd5 Qf5 Rc4+ Ke5 Rd4 Kf6 Rd3 Kf7 Bd4 Qh3 Qe4 Kg8 Qeg2 Kh7 Qe4+ Kh6 Qf1 Rb2 Qfg2 Rdc2 Rd1 Rd2 Ka8 Rdc2 Ka7 Rd2 Kb8 Rbc2
n3qN2/2pbb2N/b1Rb4/p1Pr2RP/P3Rkp1/b1Pr2R1/2B1K1n1/6QN b - - 0 2 legal: proof: g4 e5 d4 h5 dxe5 hxg4 c3 f5 Bg5 Qe7 Bh4 Qc5 b3 f4 Bg3 Qc4 bxc4 fxg3 e4 Kf7 f4 Kg6 h4 b5 a4 d5 e6 a5 e5 Kf5 h5 g5 e7 b4 e8R b3 e6 b2 e7 g2 Rh2 g3 Qd4 g4 Qe3 d4 Rh1 d3 Qd4 d2+ Kd1 Ba6 Qf2 Nh6 Ra2 Nd7 Nf3 g1B Ng5 g2 Ke2 Nb6 Rh3 Rd8 Nh7 Bh2 Qg1 Na8 Rg3 Rd5 Ra3 Ke4 f5 Kf4 f6 Nf5 f7 Nh4 Rb3 Rg8 Rb5 d1Q+ Kf2 Rgg5 Nd2 b1B Ne4 Rd3 c5 Rgd5 Rb6 Qf3+ Ke1 Qe3+ Be2 Ba2 Rc6 B2c4 Nf2 Bcb5 Rc8 Qe6 e8R Be7 f8N Qg8 Re6 Bd7 Bd1 Qg6 Rc6 Qf7 Qf1 g1B Bc2 Ng2+ Ke2 Qg8 Qd1 Qg6 Nh1 Be3 Qg1 Bc1 Rb8 Ba3 Rbb6 Bd8 Re5 Be7 Rg5 Qf7 Rb1 Qe8 Re1 Ke4 Rf3 Bhd6 Rg3 Kf4 Kf1 Bc4 Ree5 Bb5 Ke2 Ba6 Re4+
1bnnb2K/2q2R2/1R1krQ1P/5Pp1/1p4NB/4PB1n/1BpB1nP1/r4Rn1 b - - 0 1 illegal: No proof kernel
1nN5/pqbP2QR/PbB3B1/B1n1pP2/1KPRRk1p/n1R4n/5r2/1b1r4 b - - 0 1 illegal: No possible last move, all moves rejected
3nq1NB/KR1PpbP1/PR1nR3/4P2r/p2kr3/1B2R2r/4p3/2Qnb1Bn b - - 0 1 illegal: No proof kernel
2Rr2q1/pqb2R2/Q4N2/r1qr3p/PpB1PP1N/3b2b1/1PR2k1n/1N1KR3 b - - 0 1 legal: proof: d4 e5 g4 d5 c4 f5 cxd5 fxg4 d6 Nc6 d5 Nb8 Bh6 Qh4 Be3 Qd8 h3 g5 Bf4 g3 Be3 Nc6 Bd4 exd4 h4 g4 Bh3 Ne5 Bg2 Nf7 Bf1 Ng5 hxg5 Bh6 Kd2 Bg7 Ke1 Bf8 f4 Kf7 e4 Kg6 a4 c5 d7 b5 d6 d3 Kd2 g2 Kc1 c4 Qd2 g3 Qa5 c3 Na3 b4 Qc7 d2+ Kc2 d1R Ra2 Ba6 Qb7 Rd5 Rh2 Qc8 d8N Bd3+ Kd1 c2+ Kd2 Nh6 d7 Bd6 Qc6 Qb7 Qa6 Ng4 Nf7 Rad8 Nf3 g1B Nb1 g2 Nh4+ Kh5 g6 Bc7 g7 Bf2 g8R g1Q Nd6 Bg3 Ra1 h6 Rf2 Nh2 Rf8 Kg4 Ne8 h5 Rf5 Rg8 Rf7 Rgg5 Kc1 Qg2 Nf6+ Kh3 Re2 Ra5 Re1 Rgd5 Be2 Qg1 Ra3 Qc5 Rc3 Qf8 Rc6 Qg8 Kd2 Bb5+ Bd3 c1Q+ Ke2 Qe3+ Kd1 Qeb6 Rc2 Qc5 Rd2 Bc4 Be2 Bd3 Rc2 Ra8 d8R Rc8 Ng6 Kg2 Nh4+ Kf2 Rdf8 Rcd8 Re8 R8d7 Rc8 Rd8 Nd2 Bb5 Bd3 Bd7 Bb5 Bh3 Be2 Bf1 Bc4 Bd3 Nb1+
1r6/rp1RPB1n/2BB2Np/2r2q1P/rnP1pb2/kPKRQ3/r1n5/R1B5 b - - 0 1 illegal: No proof kernel
r2B4/1P1QnKpk/q1qpR1P1/3Pq2N/P1b5/1p1B1n1r/Rq3nR1/R5B1 b - - 0 1 illegal: No possible last move, all moves rejected
1n1k4/3pn1N1/2n2P2/2b2Rp1/1rN1rR1P/npRPnRPK/3Bb2N/r5Q1 b - - 0 1 legal: proof: c4 b5 b4 f5 e4 a5 exf5 axb4 Qe2 b3 Qd1 b4 g3 h5 Na3 h4 Qc2 c6 Nb1 h3 Qd1 Qb6 Bg2 Qb5 cxb5 hxg2 a4 g5 h4 e5 f4 b2 Kf2 b3 f6 e4 a5 c5 f7+ Kd8 b6 c4 a6 c3 d3 c2 f5 Ba3 f8N Be7 f6 Bb7 Nd2 b1N a7 Na3 Ngf3 g1R Nc4 Re1 Kg2 e3 Rf1 e2 Bd2 c1N Kh3 Bc5 Nh2 Ne7 Rf4 Bf3 b7 Na2 Rc1 Nb4 Rc3 N4c6 Ne6+ Ke8 Ng7+ Kd8 Qb1 Re8 Qd1 Rh1 Qf1 e1N Qg1 Be2 Rf3 Nec2 Be1 Na6 Bd2 Rb8 a8R Ne3 Ra7 N7f5 Ra8 Re4 Ra7 Nfe7 Ra8 Nc7 Ra5 Na6 Rb5 Ba7 Rbf5 Bc5 Qg2 Ra1 Qg1 Ra8 R5f4 Nab8 Rf5 Ra4 R5f4 Na6 Rf5 Rb4 b8R+ Kc7 Rb5 Kd8 R5f4 Nab8 Ra5 Bd6 Re5 Bc5 Ref5
bB2n2N/P1P2p1r/1b1n4/pq5B/n2p1P2/Pkp1BNB1/1N1r1Q1b/4K2R b - - 1 2 illegal: No proof kernel
2B4Q/pP1p2BR/2rp4/1NP2r2/2R1pRBr/n1K1nqP1/P1n2bk1/3b3B b - - 0 1 illegal: No possible last move
5r1R/r1p1R2K/2q5/2P1R1q1/2R2n2/P1B1pbnP/BpNpkBP1/2b1Qr2 b - - 0 1 illegal: No possible last move
1R1N2rn/2Q3Bp/2pPP3/B1P5/1p1pkbN1/N2B1b2/2Ppr3/q1b2NKn b - - 0 1 illegal: No proof kernel
5kn1/1K2NpQ1/4bPpn/1brNpq1R/n2b2r1/1R2PBP1/6RP/2qq1NR1 b - - 0 1 illegal: No extended proof kernel
K4RN1/3Q2n1/5p1r/bB1pk2P/2rP1bqp/2pn1PBb/1b3n1P/1RR1R2B b - - 0 1 illegal: No possible last move, all moves rejected
NR1Qq2q/1N1rR3/P1q3N1/PrP4r/1q1P4/2kr2B1/Q1r2N2/5bKn b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 b6 a4 Bh6 h4 gxh4 a6 Kf7 a5 Bf8 Bb5 Ke8 Ba4 b5 c3 bxa4 Rh3 d5 Nf3 c5 Na3 c4 Nb1 d4 Ng1 Bg7 Rh2 d3 Rh1 Bd4 cxd4 c3 Bb2 c2 Qg4 Nc6 Bc1 Na7 Qe2 Nb5 Qd1 Nc3 dxc3 Qd5 Bg5 Qd6 Bc1 Qd8 Kf1 Kd7 g4 Kc6 f4 Kb5 g5 Kc4 f6 h5 g6 e5 f5 e4 f7 a3 f8N a2 g7 d2 f6 h3 f7 e3 Rh2 h4 Rf2 h2 Nd7 h1Q f8N h3 Nc5 h2 Rf6 e2+ Kf2 Bh3 Rd6 Ra7 Rc6 Qe8 Ng6 Nh6 Re6 Bf1 g8Q Rd7 Nb7 Qc6 Nh3 h1Q Na3+ Kb3 c4 Nf5 c5 Rh5 Re7+ Kc3 Nc4 Ng3 Rb1 a1R Rb5 Rb1 Nb6 Rb2 Na8 Rb1 Ba3 c1R Qa4 Rc2 Bc1 d1R Qaa2 Rd3 Bf4 Rb4 Rb6 Rb5 Qf8 Qhf3+ Kg1 e1Q Bc7 Qff6 Nf2 Nh1 Bg3 Qh8 Qfg8 Qf7 Qd8 Qfe8 Nd6 Qb1 Rb8 Qb4 Nb7
N3Bb1B/1PQ2N1R/b1n1r1k1/2qp4/2PP2B1/n1r1q3/1K2Qp1P/2B3r1 b - - 0 1 legal: proof: b4 b5 f4 e5 g4 c5 bxc5 f5 a4 h5 gxh5 a5 e4 exf4 exf5 Ra6 Ra2 Ra7 Rb2 Ra8 Rb4 axb4 axb5 Ra7 Bd3 Ra6 Bf1 Ra8 d4 Kf7 Kd2 d5 b6 g5 c6 b3 Kc3 b2 f6 g4 c7 f3 h6 g3 b7 g2 h7 f2 Bb5 Kg6 f7 Ra1 Qe2 Qe8 Nf3 g1R Na3 b1Q Nc4 Bg4 c8B Nh6 Nb6 Ra6 Na8 Nf5 Ng5 Nc6 Bd7 Rg8 h8B Ne3 Ba4 Bh5 Bg4 Qb6 Bb5 Qe6 Kb2 Qc5 c4 Nc2 Ba4 Na3 Bb5 Rg3 Rg1 Rc3 Rg3 Qe3 Rh3 Na7 Be8 Nc6 Bf3 Bg4 Rh7 Bd7 Bg4 Nb4 Ne4 Re6 Nd6 Bb5 Be5 Bh6 Bh8 Nc6 f8Q+ Kg5 Qd2 Ba6 Nf7+ Kg6 Qd6 Bg7 Qc7 Bf8 Be2 Kf5 Bh5 Rg1 Bg4+ Kg6 Qe2
Q4N2/1bk1n1P1/bQnn1P2/1rQ1RnK1/P2qN1Q1/P4r2/n2Rb1B1/7r b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 e4 f5 b3 a4 bxa4 fxe4 g4 Be6 h4 Nh6 f5 Rg8 Bb2 Rh8 Be5 Bf7 Bf4 gxf4 g5 Be6 g6 Ng8 Ke2 Bh6 Ke1 Bg5 hxg5 Bc8 Ke2 Kd7 d4 h5 d6 e5 a3 c5 f6 b5 d5 c4 g7 f3+ Ke3 f2 g6 b4 Qf3 c3 Rh4 c2 Qd1 c1N Qb3 Nc6 Bd3 f1B Nc3 Nge7 g8Q Rb8 g7 Be2 Qc2 b3 Qd1 b2 Nh3 b1N Qh1 Nd2 Bb5 Na2 Qf8 Ba6 Qd1 Rb6 Rg4 h4 Nf4 h3 Rg2 h2 Ng6 h1B Rg5 Kc8 d7+ Kc7 Bc4 Rb5 d6+ Kb7 Qg1 Rh3+ Qg3 Kb6 Bd5 Kb7 Rd1 Nc4+ Kf2 Bhf3 Qg4 Bg2 Rd2 e3+ Kg1 e4 Re5 Rg3 Kh2 Rf3 Qf7 Qb6 d8Q Qd4 d7 Nd6 Qdf8 Kc7 Qa8 Bd1 Nf8 e2 Qfh5 e3 Ne4 e1N Qhf5 e2 Qa7+ Nb7 Qfg5 Nc2 Q5h5 e1R Qhf5 Rff1 Kg3 Ne3 Kh4 Be2 Kg5 Rh1 Qf2 N3f5 Qc5 Nbd6 d8Q+ Kb7 Qa8+ Kc7 Qe3 Ref1 Qca7+ Bb7 Qc3 Rf3 Qcc5 Bgf1 Nc3 Rf4 Bg2 Rf3 Ne4 Rbb3 Qc2 Ba6 Qc4 Rb5 Qcc5 Be2 Qab6+
3Nn1Q1/2q2R1N/B6r/1Bb2rP1/n1b1PnP1/2Br3n/kqB2P2/Q5nK b - - 0 1 legal: proof: b4 b5 d4 c5 dxc5 g5 a4 e5 axb5 g4 Qd4 f6 Ra3 exd4 e4 g3 Re3 f5 hxg3 f4 g4 fxe3 g5 Kf7 Nf3 Ke7 Ng1 Ke8 g4 Ke7 c4 d5 b6 a5 b7 h5 b5 h4 b6 h3 c6 Kd6 c7 Kc5 Bg2 Kb4 Kf1 Kb3 c5 e2+ Ke1 d3 c6 h2 Bf1 a4 Bd2 d4 Bc1 a3 Bb2 a2 Bg2 a1Q Nf3 Rh6 Bf1 Nd7 b8Q Ra5 b7 Ngf6 Bc1 Nd5 Bf4 Ka2 Qa8 Bc5 b8Q N7f6 Bd2 Ne8 Ne5 Nf4 Nf7 Qb2 Bc3 Be6 c8B Bc4 c7 Nh3 Ba6 Qe7 c8B Qc7 Nd8 Rb5 Rg1 h1N Be6 Ng3 Rh1 Nh5 Bd7 Ra5 Ba4 N5f4 Bc2 Rb5 Qc8 Ra5 Qe6 Rb5 Qg8 Ra5 Kd2 e1N Kd1 d2 Qa7 Bb3 Bfb5 Nf3 Rh2 Bc4 Qa8 Nd3 Ke2 d1N Kf1 Nfg1 Kg2 Ndf4+ Kh1 d3 Qa7 d2 Qa8 Ng2 Qa7 Nhf4 Rh4 Nfh3 Rh5 Ngf4 Qa8 Rb6 Rh7 Rd6 Rf7 Rh6 Bb4 Nc3 Qa7 Na4 Nc3+ Ka1 Nd5 d1R Bc3 Rd3 Nf6 Ka2 Nh7 Be3 Bc6 Rf5 Bcb5 Bc5 Qb8 Qb6 Qe5 Qc7 Qd4 Rg3 Qd1 Rd3 Qa1+
N2B3Q/Nn1Q2K1/3QPn1n/q4B2/1r2QP2/nP4P1/r4bkb/q3b1nR b - - 0 1 legal: proof: e4 e5 b4 g5 d4 f5 c4 b5 cxb5 Bb7 h3 Bd5 h4 Bb3 axb3 gxh4 Ra2 Ne7 Re2 Qc8 dxe5 Qd8 e6 Ng8 e5 Nf6 Re3 Ng8 Re4 fxe4 Ke2 Ke7 Ke3 a5 Kd4 h5 f3 d5 b6 c5+ Ke3 c4 Kd4 a4 b7 e3 b5 c3 b6 h3 Ba6 c2 Bb2 c1N Qe1 e2 Qd1 e1B Nc3 h4 Bb5 h2 Na2 a3 Bd3 Nc6+ Kc5 d4 Bg6 d3 Nh3 d2 Qe2 d1N b8Q Ne3 b7 Nc2 Nb4 a2 Nf4 Bf2+ Qe3 a1B Rd1 h1Q Bf5 h3 Rd3 h2 Rd1 Na5 Qd4 Qc7+ Kd5 Ne2 Qba7 Rh7 b8Q Rh4 Qab7 Ra6 Q8a7 Nh6 Nc6+ Ke8 Qbb6 Bd6 e7 Kf7 Qd2 Nb7 Ne6 Rb4 Qb8 Ra2 Qh8 Na3 Na7 Qd8 Qc5 Qa5 Nc7 Qf1 Qc2 h1N Na8 Nhg3 Bc1 Bc7 Bg5 Nh5 Rc1 Qe1 Rb1 Qc3 Rh1 Ng1 Qe2 Bd6 Qeb5 Qc1 Qd7 Bc3 Bf6 Qa1 Bh4 Bg3 f4 Bce1 Bf6 Bh2 g3 Bc7 Bg5 Bb6 Bh4 Qa6 Qcd6 Bbf2 Be6+ Kg6 e8Q+ Nf7 Qee7 Nh6 Bf6 Qa4 Bh3 Qb5+ Ke6 Qa5 Qee8+ Nf7 Bd8 Nf6 Qee7 Nh6 Qeh7+ Kh5 Qe4 Qb2 Bf5 Qa1 Bh7 Kg4 Ke7+ Nf5+ Kf7 Kh3 e6 Nh6+ Kg6 Rc4 Kg7 Rb4 Qc2 Kg2 Bf5 Nhg4 Qb1 Nh6 Qe4+
2n2nb1/n7/Q1PP1P1q/r3rqbN/1R4N1/nkNq1PK1/3n3R/3N1QB1 b - - 0 1 legal: proof: b4 b5 e4 c5 a4 f5 exf5 h5 g4 Bb7 gxh5 Bc8 c4 d5 axb5 cxb4 c5 Nf6 Bd3 Ng8 Bc4 dxc4 h4 Kd7 d4 e5 f3 g5 Kf2 a5 h6 e4 f6 Ke6 h7 Kd5 h5 c3 c6 Kc4 d5 a4 b6 a3 b7 b3 h6 e3+ Kg3 b2 Kh2 c2 Kg2 a2 Ne2 g4 Rf1 g3 Nbc3 b1Q Qd3+ Kb3 Rf2 Ra5 Bd2 c1Q Ng1 e2 Rf1 Nd7 b8N e1N+ Kh3 g2 Qa6 Nc2 Nd1 Ne7 Rf2 Na3 Ne2 g1N+ Kg3 Qf5 Be3 Bg7 Bc5 Re8 h8Q Nf8 h7 Be6 Rh2 Nc8 Nd7 Bh6 Nec3 Bg5 Ne5 Bg8 Ng4 Re5 Qg7 Qd6 h8N Qe3 Rc1 a1N Ng6 Qd2 Nf4 Ne2+ Kf2 Qdd7 Nh5 Nd4+ Kg3 Ndb5 Bg1 Nba7 d6 Qdd3 Qh7 Qg7 Rcc2 Qgg6 Rh4 Qh6 Rch2 Kb4 Qe7 Nb3 Qd7 Nd2 Qe7 Red5 Qe1 Kb3 Qf1 Re5 Ngf2 Nc2 Ra4 Na3 Ng4 Ng6 Re4 Nf8 Rb4+
1r3b1B/1N1rNK1N/4QRP1/2qQ3b/1kq5/bn1qP1P1/1b2NPR1/4nq2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 e5 e3 exd4 Rh4 f5 Kd2 f4 Rh1 f3 Be2 fxe2 Kd3 Kd7 Kc4 Kd6 b4 e1B g3 h5 g6 c5 b6 a5 b5 h4 b7 a4 b6 h3 Qc2 a3 Qd3 h2 Nf3 a2 Qf1 d3 Nh4 d2 Ng2 d1Q Bb2 Rh7 Qe2 Qc1+ Nc3 Na6 b8N Ne7 b7 Nf5 Qf1 Nb4 Rg1 h1Q Nf4 Nd3 Nc6 Rd7 Ne6 Rb8 Ne7 Nd4 Qg2 Nb3 Ng5 Qc2 Rc1 a1B Nh7 Qh3 Qe4 Qf1 Rg2 Bd2 Rd1 Bc1 Qf5 Ne1+ Qd3 Qd2 Ne2 Q8a5 Bh8 Ba3 Qe4 B1b2 Qe6+ Kc7 d6+ Kb6 Rb1 Qdc3+ Kd5 Kb5 Rd1 c4 Rd4 Qb6 Rf4 Kb4 Rf7 Qc2 Rf6 c3 Ke5 Qc7 Qd5 Qc5 Ke6 Qd3 Kf7 c2 Qe6 Rc7 d7 c1Q d8N Q1c4 Qd5 Bg4 Qe6 Rbc8 b8Q+ Rb7 Qa7 Bh5 Qa8 Rd7 Qad5 Rb8 Nb7
1n2K1b1/N1NQB1P1/RPq1Q3/6r1/2n4k/1nP1P1Rn/2Nb1q2/Nn3n1b b - - 0 1 legal: proof: h4 b5 f4 c5 a4 e5 fxe5 a5 axb5 g6 g4 Ra7 d4 cxd4 h5 Ra6 g5 Ke7 Bh3 Ke8 Bf5 gxf5 Nc3 Rd6 Nb1 Rg6 hxg6 Be7 Kf1 Ba3 Ke1 Bf8 Kd2 Ke7 Kd3 h5 Kc4 d5+ Kc5 a4 b4 d3 b6 f4 e3 f5 g7 a3 b7 f3 e6 d4 b5 f2 g6 Kf6+ e7 Kg5 b6 f1N Nd2 h4 Nc4 d2 Na5 d3 Kb5 a2 e8N f4 Rb1 a1N Nf6 h3 Qe1 d1N Bd2 f3 Rh2 f2 Rg2+ Kh4 Ne8 h2 Rg3 h1B Nc7 Nb3 Bb4 d2 Ra1 Ne7 g8Q Nb2 g7 d1N Qe6 Nc4 Ne2 Ng6 Qd2 Qf6 Qdd7 Nf4 Be7 Nh3 Nd4 Rh6 Ra2 Rg6 Ra1 Nc5 Ra3 Rg5 Nab3 Qg6 Na1 Nb3+ Bc5 Bd6 Ra6 Be5 Be7 Nc3+ Kb4 Nb1 c3 Bd6+ Ka4 Ba3 Ndc2 Bc1 Kb4 Bd2 Ka4 Ne5 Kb5 Nc4+ Qdd5 Nd7 b8N Qe8 Nc6 Nb8 Qd7 Bb7 Na7 Ba8 Qc5 Bad5 Qd6 Bg8+ Qd5 Nh2 Qe5 f1Q Qf5 Qf2 Qd5 Ne5 Q5c6 Nf1 Qce6 Nc1 Kc5 Nb3+ Kd6 Qg6 Bf6 Nc4+ Ke7 Qe4 Ke8 Qc6 Be7
RbR3b1/2P1Rr1P/N1Q1qb2/r1b4P/r2b2qP/k2B4/1n5b/N2RQK2 b - - 0 1 illegal: No proof kernel
2BK3b/QQ5P/1r1P1N1q/RQP2kr1/6q1/1n2qp1Q/n3Pnb1/5RNb b - - 0 1 legal: proof: b4 b5 f4 c5 a4 h5 axb5 e5 g4 exf4 gxh5 d5 Bb2 d4 bxc5 Qe7 c4 Qd8 Bc3 dxc3 Kf2 Kd7 Kf3 Ke6 Ke4 f5+ Kf3 g5 d4 a5 h4 g4+ Kg2 f3+ Kg3 c2 Kf4 c1Q+ Nd2 a4 h6 g3 h7 a3 b6 a2 h5 g2 c6 f2 c5 Nh6 b7 Na6 b8Q Qh4+ Ke3 f4+ Ke4 Qg4 c7 Bg7 Qa4 Nb4 Qaa7 Rg8 h8Q Bb7+ d5+ Kf6 Qe8 Rb8 c8Q Ba8 Qca6+ Rb6 Qeb5 Kg5 Qh7 Bh8 Q6b7 Kf6 d6 Rg5 Rh3 Ke6 Ra3 Kf6 Rb1 a1N Ra5 Nb3 Qhd7 Na2 Ra1 Nf7 h6 Ne5 Kd5 Kg6 h7 Kf6 Ndf3 Nd3+ Ne5 Qe3 Qc8 Qh5 Qh3 Qh6 Qf3 Kf5 Ng4 Nd2 Qh3 Nb3 Nf3 g1Q Nf6+ Qg4 Ng1 Nd2 Bg2 f1B Bf3 Bg2 Rf1 Bh1 Bg2 Nb3 Bf3 Nf2 Bg2 Rc6 Bf3 Rc7 Bg2 Re7 Kc6 Re8 Kc7 Rb8 Qb7a6 Rb6 Kd8 Bd5 Q6b7 Bc6 Bd5 Bg2 Bg8 Bh1 Bf7 Bcg2 Bc4 f3 Be6+ Kf4 Bc8 Ke5 Nd7+ Kf5 Nf6+
1b2Q1Q1/1r2q2R/6bR/2R1B2N/P1rPnKn1/4rPRr/P1pkrN2/5q2 b - - 0 1 legal: proof: c4 a5 b3 f5 Nh3 d5 cxd5 f4 Ng1 a4 bxa4 f3 exf3 g5 Nh3 g4 Ke2 g3 Ng1 gxf2 g4 h5 g5 Bg7 Bh3 Bf8 Bg4 hxg4 Ke3 Kd7 d4 Kd6 h4 b5 h5 c5 h6 e5 h7 b4 g6 c4 g7 e4 Rh6+ Nf6 g8R f1Q Qb3 c3 Nd2 c2 Rb1 Na6 Rhg6 Nc5 Qd3 b3 Nh3 b2 Ng5 Bf5 Kf4 e3 Kg3 e2 Qb3 e1R R6g7 Re2 Qe3 Rc8 Rb7 Bh6 Ne6 Bf4+ Kh4 Bh2 Nf4 Rc7 Rg5 Bg6 Qb3 Rhe8 h8R g3 Rg4 g2 Kg5 g1R Rh6 Bg3 Nh5 Rh1 Qb5 R8e6 Qe8 Rh3 Ra7 Rc8 Rah7 Be5 Rg3 Qe7 Nb3 Rc7 Bf4 Rc6 Nc1 Ng4+ Nf6 Rc8 Nd3 Rc7 Nf2 Rc6 Rd1 b1R Rd3 Rb7 Rb3 Kc7 Rc3 Kb6 d6 Ka5 d7 Kb4 Qg8 Bb8 d8Q R6e3 Be5 Ne4+ Kf4 Rcc7 Nh5 Rc8 Rc6 Rcc7 Re6 Kc3 Qde8 Rc4 Rc6 Kd2 Rc5
3n1Bk1/1r1n4/Rn1bNPqb/1N1P4/r2P1NQN/4p1BQ/4P2n/1q1nK3 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 f5 c4 f4 cxd5 f3 Bg2 fxg2 f4 h4 f5 Bb7 f6 Ba6 Ra3 Bc8 Rg3 Bf5 gxf5 hxg3 d4 Kf7 h4 g5 h5 a5 b6 e5 h6 c5 b7 g4 h7 e4 b5 a4 b6 c4 Rh4 a3 Rh3 a2 Kd2 a1Q Qa4 c3+ Ke1 c2 Qc4 Ra4 Qb5 Bd6 Qd7+ Ne7 Qc6 Nd7 b8Q Qe8 b7 Nc8 Qb5 Ncb6 Bf4 c1B Be5 Bh6 Rh4 e3 Nf3 g1N Qc8 g2 b8N g3 Nc6 Nh3 Nd8+ Kf8 f7 g1N Qd3 g2 Bg3 Nf2 Qe4 Nd1 Nc3 Nh3 Nb5 g1N Qg4 Ng5 Rh1 Qa2 Nh4 Ne6 Rh3 Rg8 h8N Qb1 N8g6+ Kg7 f8B+ Kh7 f6 Rg7 Nf4 Qeg6 Rh1 Nf3+ Kf1 Nh2+ Ke1 Kg8 Qh3 Nec5 Nde6 Nb7 Ng5 Nb8 Qcg4 N8d7 Nge6 Nd8 Bf2 Ra2 Na7 Qb2 Rf1 Nb8 Nb5 Nc3 Bg3 Rb7 Rg1 N8d7 Rh1 Nf3+ Kf1 Nh2+ Kg2 Ra5 Ra1 Qb1 Ra4 Nd1 Kg1 Nf3+ Kf1 Nh2+ Ke1 Raa7 Rc4 Ra3 Ra4 Ra1 Ra8 Ra4 Ra6
8/n2B1N2/P1N3r1/r1bR3q/1qPrr3/Qbpr3R/PPk3n1/N3QNK1 b - - 0 1 illegal: No possible last move
1K1Q4/3Brb1q/rn2bn2/3P2n1/k2P1P1P/4qbb1/1Rp1B1RQ/3B2NB b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 g4 exf5 g3 f3 h6 Bb2 Ra7 Nc3 Qd7 Ke2 Qd8 Ne4 Nf6 Bd4 Ra8 Bf2 gxf2 g4 Ng8 g5 h5 Nf6+ Kf7 Ng4 hxg4 Qb1 Ke8 Qb3 Qd7 Qd1 Qd8 d4 Kd7 Nh3 c5 Kd3 b5 Ke4 e5 a4 c4 g6 c3 a6 b4 a7 g3 a5 b3 f6 b2 f7 b1B+ Qd3 g2 g7 g1Q a6 Kc7 Ra2 Kb6 Rb2+ Ka5 Qc2 Bd6 f8Q Qc7 Qd8 Nd7 Bc4 Qc1 Ng1 f1B h4 Be2 Rh2 Rh7 Kf5 e4 Ke6 Ngf6 g8B Rf7 Bh7 e3 Be4 Bg3 f4 Qd2 Bg2 Bf3 Bh1 e2 Bb3 Qc1 Qd2 Bg6 Bd1 e1N Qg2 c2 Qh3 Rh7 Rg2 Ka4 Qh2 Qb7 Kd6 Qe3 Re2 Nb6 Rg2 Qg7 Kc6 Bd7+ Kc7 Bfg4 Kb7 Nf3 Kc7 Rb8 a8B Ng5 a7 Bf3 Bb7 Ra8 Ba6 Qh8 Bf1 Re7 Bfe2 Bf7 Kb7 Qh7 Kc7 Rb8 a8B Bde6+ Qd7+ Ka3 Bc6 Ra8 Kb7 Ra6 Kb8 Be4 Qd8 Bf3 Ra2+ Kb4 Bd7 Kb3 Rb2+ Ka3 Bc8 Ka4 Bd7+
Bb1Qq3/2RQ4/1rn1N1q1/2Pr2pb/RPKP1k2/N2r4/2n4P/R1nr3R b - - 0 1 legal: proof: g4 h5 gxh5 b5 e4 f5 exf5 b4 a3 Kf7 axb4 Ke8 b3 d5 Na3 c5 Nb1 c4 Bh3 cxb3 Bg2 Qa5 Bf1 Qd8 c4 d4 Bb2 Nh6 Bc3 dxc3 Bh3 Ng8 Bg2 Rh6 Bf1 Rh8 Ke2 Kf7 f4 Kf6 d4 a5 Kd3 g5 c5 e5 h6 e4+ Kc4 b2 h7 c2 Nd2 b1Q Bd3 c1N Qa4 e3 Qd1 e2 Ra4 e1R Qb3 Bd6 Qc2 Nc6 Qa2 Re6 Be4 Bb8 Nh3 Qe8 Bf3 Qe4 Nb1 Nge7 Na3 Nd5 Qf2 Rg8 h8R Rd6 Rh6+ Rg6 Rh7 Be6 Qg3 Bf7 Qg4 Rh6 Bg2 Bh5 Rc7 Ra6 Bf3 Rb6 Bg2 Qg6 Bf3 Qee8 Bg2 Rd7 Bf3 Kg7 f6+ Kh7 f5 Ne3+ Kc3 Nc2 f7 Rd5 Nf4 Kg7 Kc4 Kf6 Ne6 Rh7 f8R+ Rf7 Rh8 Re7 Nd8 Re3 Ne6 Rd3 Rhh7 Qgf7 Ra7 Qg6 Rhc7 Qgg8 Nb5 Qgg6 Ra1 a4 Bg2 a3 Ra4 a2 Na3 Na7 Qh3 Re5 Bb7 Rd5 Ba8 Nc6 Rc8 Ke7 f6+ Kd7 f7 Ke7 Rb1 Kf6 Rc7 a1R f8Q+ Qef7 Qg3 Kf5 Qd8 Qe8 Qh3+ Ke4 Ng7 Kf4 Qhd7 Ra2 Ra1 Rb2 Bb7 Rbb3 Ba8 Rd1 Q7c8 Rh3 Qcd7 Rhd3 Ne6+
5QbQ/2q1b1qb/4q1b1/2Pn1k1P/N3N2P/1K1pP2R/r1n1b1RB/1R2R3 b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 b5 a4 e5 axb5 exd4 e3 c5 Bc4 Ra6 Bd3 Re6 f3 Re4 fxe4 c4 Qd2 cxd3 Qe2 Bd6 Qd1 Bf8 Kd2 Ke7 b4 Ke6 c4 f5 h4 d5 e5 g5 b6 f4 b5 g4 c5 g3 b7 f3 b6 g2 Qb3 f2 Ra2 f1B Qb5 a4 Ba3 Nf6 Ne2 g1Q Qe8+ Be7 Nc1 Qc7 Nb3 Be2 Rh3 Qg8 Rc2 Na6 b8Q Kf5 e6 Nb4 Rb2 Nc2 Bb4 a3 b7 a2 Qf7 a1Q Bc3 Qg7 Ba5 Qa2 Nc3 Bd7 Qa8 Be8 Qf8 Bg6 b8R Rg8 Bb6 Qa6 Kc1 d2+ Kb1 d1B Nd2 d3 Na4 d4 Ka2 Rh8 Ne4 d2 Kb3 Rh6 Qh8 Nd5 Rb1 Bd3 Rb7 B1e2 Re1 d1B Ba7 Bh7 Bb8 Rg6 Rb4 Rg2 Rb7 Qd7 Bh2 Qc7 Nf6 Be4 Qaf8 d3 Rb4 Bd8 e7 Qe6 e8R Be7 Bg1 Ke5 Rbb8 Beg6 Bh2+ Kf5 Red8 Bg4 Rb4 Bde2 Rdb8 Bgf3 Rg4 Be4 Rb4 Bg8 Rgg3 Rf2 Rg2 Rf1 Nc3 B6h7 Na4 Rg1 Ra1 Rb1+ Kc4 Rb2 Re1 Ra2 Bg1 Ke5 Rbb1 Beg6 Kb3 Kf5 Bh2 Bd8 Ne4+ Bf6 Qd8 Be7 Qf8+
B3r3/R2B4/QPQ2KP1/N5r1/P1qpbb2/PbBb4/4r1bn/4kNbB b - - 0 1 legal: proof: h4 b5 d4 g5 c4 gxh4 b3 e5 dxe5 a5 Nf3 a4 bxa4 b4 Ng1 Ra6 Bb2 Ra7 Bc1 Ra8 e4 f5 e6 Ra6 e5 Ra8 a3 Nc6 Ra2 Nd4 Re2 Nb5 Re4 fxe4 cxb5 Qe7 Qc2 Qg5 Qd1 Qd8 Kd2 Ke7 Ke3 h5 Kd4 d5 g4 c5+ Ke3 b3 Kf4 h3 Kf5 e3 f4 e2 b6 e1R g5 b2 g6 c4 Qc2 c3 Bc4 h2 Bd2 h4 Be3 h3 Qd2 c2 Bf2 c1B Qd3 Ra5 Nf3 Nf6 Nfd2 Qc7 Nf1 Re2 Bd4 Ng4 Nbd2 b1B Bc3 d4 Bb5 Qc4 Bd7 Bh6 Nb3 Be3 Bc6 Ba2 Ba8 Ba6 Qe4 Rb5 Na5 Bg1 Qf3 Bb3 Qc6 Bg7 Kg5 Re8 f5 Bf8 Kh4 Bh6 f6+ Kd8 f7 Bf4 f8Q Rc5 Qg2 Kc8 e7 Kd7 e6+ Kd6 Qf6 Rg5 Qb7 Kc5 Qa7 Qb4 Qb7 Bd3 Qa7 Qc4 Qa6 Rd8 e8B Rc8 Bd7 Re8 Nc6 Kd5 e7 Ke4 Qd6 Kf3 Na5+ Kf2 Qc6 Rg8 Bb2 Ke1 e8B Rf8 Bf7 Rfe8 Bd5 Bge3 Rg1 h1B Be4 Bg2 Rh1 Bg1 Rh2 Bc1 Bc3+ Bd2 Bd5 Bge4 Rf2 h2 Rf7 h1B Rg7 Bhg2 Re7 Nh2 Rf7 Rg4+ Kh5 Rf4 Kg5 Rg4+ Kf6 Rg5 Bh3 Rg4 Ra7 Rg5 Bd7 Bf5 Bf3 Bfe4 Bb2 Bf4 Ba1 Bh3 Bh1 Bhg2 Bc3+
2n2qQ1/1nN1q3/1q1q4/8/NPKP2Q1/2bPBBB1/1bp1krP1/RB2bb2 b - - 0 1 illegal: No possible last move, all moves rejected
N2BBR1n/1PQN4/qp5B/qP3nn1/4r1P1/1Pn1k1r1/1KQ3r1/Bn4r1 b - - 0 1 legal: proof: e4 d5 c4 f5 exf5 g5 h4 gxh4 c5 b6 a3 Bg7 c6 Bb7 cxb7 Bc3 Ra2 Bb4 axb4 Kf8 Ra3 Kf7 Rc3 Ke8 Rc4 dxc4 f4 Kd7 d4 Kc6 Kd2 Kd5 Kc2 Ke4 g4 h5 f6 e5 f7 c5 f8B a5 b3 c3 d5 a4 d6 c4 d7 a3 f5 h3 f6 h4 b5 h2 f7 h3 Bb4 a2 f8Q a1Q Qdd6 Na6 Qff6 Nh6 Nd2+ Ke3 Qff8 e4 Qc6 Nf7 Qc8 Nc7 Bca3 Ne6 Bc1 Neg5 Be2 Ra2+ Kd1 c2+ Ke1 c3 Qc7 Qa8 d8B Qa5 Qe8 Rf8 Bbe7 Nh8 Qe5 Rf3 Qc7 Rg3 Ngf3 Rb2 Rf1 h1N Bf8 h2 Ne5 Qa6 Qg6 Q1a5 Rf6 Nf2 Rf5 h1N Nd7 Nd1 Bd3 Ra2 Bb2 c1R Ba1 c2 Rf4 Rb1 Rf6 c1N Bh6 Ne2 Rf8 Nec3 Nf3 Rag2 Nd4 Rc1 Ne6 Nb1+ Kf1 Rc4 Qh7 Ndc3 Ke1 Ne2+ Kd1 Nec3+ Kc1 Rd4 Be2 Rd1+ Kc2 Rdg1 Qg6 Rh3 Kb2 Ng3 Qh7 Nf5 Qg6 Rhg3 Qh7 Kd2 Bf3 e3 Bc6 e2 Qg6 e1R Qh7 Ng7 Qc2+ Ke3 Qc8 Nf7 Nc7 Nh8 Na8 Nf5 Qb8 Kd4 Qc7 Re4 Nb8 Ke3 Be8 Rh1 Nd7 Re1 Qc4 Reg1 Qc7
b2n3q/p2n1nN1/R2p1P2/1B5r/1PKB1N2/2PPQr1N/kN1Q2b1/2b3r1 b - - 0 1 legal: proof: e4 b5 a3 f5 b3 b4 axb4 c5 Bb2 c4 bxc4 Qb6 Bc1 Qd8 f3 h5 exf5 g5 f4 gxf4 g4 Na6 g5 Nb8 Ra3 Qb6 Rg3 Qd8 Rg4 hxg4 Ke2 Kf7 Kd3 e5 h4 d6 c3 f3 c5 f2 c6 g3 c7 g2 h5 Nc6 h6 Bb7 c8N Nf6 h7 Bh6 Na3 Nd7 Nh3 g1N Rh2 Nf3 g6+ Kf6 g7 Ng5 Be2 f1B g8Q Rb8 Qe1 Ba8 Qe8 Rf8 h8N Rb5 Rf2 Bg2 Ne7 Rf7 Nhg6 e4+ Kc2 e3 Kb3 Re5 Bb5 e2 Nc4 Rf8 Qd1 e1R Qc2 Rg1 Rf1 Rh8 Nb2 Re3 Re1 Nf7 d3 Rf3 Qd1 Bf4 Qe2 Rh5 Be3 Bg5 Bf2 Bh6 Ra1 Bc1 Kc4 Qc8 Nf8 Qb8 Qd1 Ke5 f6 Qc8 Ra6 Qb8 Ng5 Kf4 Nf5 Qc8 Qe7 Qe8 Bd4 Ncd8 Nfh7 Qh8 Ng7 Nb8 Nf8 Nd7 Be5+ Ke3 Ng6 Bh3 Nf4 Bg2 Qb3 Kd2 Ngh3 Nh6 Bd4 Nhf7 Qa2 Kc2 Qa4+ Kb1 Qe3 Qg8 Qd1 Qh8 Rb6 Ka1 Qdd2 Ka2 Ra6+
R1nqR3/8/P6N/q1b2K1P/N1b1RP1r/nrPQ3p/kpb5/2B1R1Qq b - - 0 1 legal: proof: d4 a5 h4 f5 e4 h5 exf5 c5 dxc5 g5 b4 axb4 g3 g4 Bh3 gxh3 g4 Rh7 gxh5 Rh8 Kd2 Kf7 Ke3 e5 Ke4 d5+ Kf3 b5 Kg4 e4 a4 b3 f4 b4 a5 e3 h6 d4 a6 d3 h7 e2 c6 e1Q c7 d2 Ra2 b2 Ra3 b3 Ra1 Nc6 Ne2 Na5 Rg1 Bc5 Ng3 Rb8 Ra4 Nc4 Nc3 Be6 c8R Na3 Re4 b1B Na4 Bc4 f6 b2 Nf5 Rb3 Ra8 Ne7 c3 Bc2 Qf3 Qa5 Qd3 d1Q+ Kg5 Qed2 Rge1 Qf3 Re8 Qh1 Ra8 Nc8 Nh6+ Kf8 f7 Qd1 Qf1 Qdd8+ Kf5 Kg7 Qg1+ Kf8 Ke5 Ke7 Kf5+ Kd6 f8R Kd5 Re8 Rg8 h8Q Rg4 h5 Rh4 Qhg7 Kc6 Nb6 Kb5 Nd5 Ka4 Q7g3 Nb5 Qg6 Ka3 Nb6 Ka2 Na4 Na3 Qh7 Na7 Qd7 Nc8 Qd3
1QN2n2/1P1r1RpP/K5k1/1PRq2q1/1PrR1n2/8/n1r3pB/1QB1R1bb b - - 0 1 illegal: No proof kernel
8/P1nbbP1Q/5r1q/1pnr4/P2kq2P/2pB1N1b/Q3rN1K/2QQB1R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 a4 h6 g4 gxf4 g5 h5 Ra3 Ra7 Rg3 Ra8 Rg4 hxg4 Kf2 Kd7 Kg2 Kd6 d4 e5 h4 b5 g6 c5 f6 f3+ Kh2 c4 a6 e4 g7 c3 f7 e3 a7 e2 Bh6 e1Q Nh3 g3+ Kg1 f2+ Kg2 Nf6 g8Q Ne4 Bd2 Qf6 Qg5 Na6 Bd3 Qh6 Rg1 f1B+ Kh1 g2+ Kh2 Bg4 Nf2 Bd7 Qg8 Nc7 Qc1 Qee3 Be1 Nc5 Qh7 Rd8 Nd2 Qe4 Nf3 Rg8 Ng5 Rg6 Nf3 Ke7 d6+ Kf6 d5 Be7 Qa1 Kf5 Qa2 Kf4 Qa3 Ke3 Qa2 Bh3 d7 Rf6 d6 Re8 d8Q Bd7 Rh1 g1R Qb8 Rg3 Rg1 Rg5 Qd8 Bfh3 Qa8 Bde6 d7 Rd5 d8Q Bd7 Be2 Rd2 Bd3 Re2 Qb7 Rg8 Qbd5 Rg5 Qdb3 Rd5 Qbb1 Bde6 Qd6 Bd7 Qd1 Nb3 Qda3 Nc5 Ng5 Kd4 Q3b2 Bde6 Qbc1 Bd7 Nf3+
B2bQqr1/pn5k/1r3r2/1bQPnp1R/1PQ5/1R1N3K/2P2P2/2nNQ1q1 b - - 0 1 legal: proof: b3 b5 a3 b4 axb4 c5 Na3 d5 Nb1 c4 bxc4 Qd6 Ra4 Qb6 Ra1 Qd8 g4 d4 d3 h6 Bd2 h5 e3 dxe3 gxh5 exd2+ Ke2 Qc7 Na3 Qb6 Nb1 Qd8 Kf3 g5 Kg2 f5 h4 Kf7 c5 Kg7 h6+ Kh7 c6 e5 c7 g4 h5 e4 d4 e3 Nf3 e2 Rh3 g3 Ne1 Nc6 Nc3 Be7 Nd3 Bd7 c8Q Na5 Qc4 Nb7 Qe1 Bb5 Nd1 Rb8 Rb1 Bg5 Rb3 Nf6 Rh4 Qg8 Rg4 Nd7 Kh3 Ne5 Bg2 Bd8 Rg5 Qf8 Bc6 g2 d5 g1Q Qc5 Rg8 Qc4 Na5 Ba8 Rb6 Qc5 Kh8 h7 Nb7 Ne3 d1R Qc4 Ra1 Nd1 Rgg6 Qc5 Kg7 Qc4 Raa6 h8Q+ Kf7 h6 Rg8 h7 Rf6 Rh5 Kg6 Rg5+ Kh6 Qc5 Rab6 Qc4 Rgg6 Qg8 Rg7 Qe6 Rg8 Qec3 e1N Qc5 N1f3 Q3c4 Nd4 Qee7 Ne2 Qe8 Nc1 Qee7 Rg7 h8Q+ Rh7 Qg8 Rh8 Qge6 Rg8 Qe8 Kh7 Q6e7+ Nf7 Qe1 Ne5 Rh5+
5r2/3k4/nrRQ1P1P/2bPp3/1n1n1p2/Qqn1P3/1B2NNbB/Q1KQ3n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 d5 cxd5 Kd7 a4 Ke7 axb5 Ke8 b4 Nf6 b6 Ng4 Bh3 Nh6 Be6 fxe6 f5 Ng8 Ra3 Nh6 Rf3 Ng8 Rf4 exf4 h4 g5 d4 c5 Kd2 a5 f6 a4 h6 g4 b7 a3 h5 a2 e3 a1N h7 g3 d6 g2 d5 c4 h6 e5 b5 Ne7 b6 Nf5 Ne2 g1N Nbc3 Nh3 Bb2 Kd7 Ne4 c3+ Kc1 c2 Nf2 Na6 b8Q Nd4 b7 Qb6 Qa7 Rb8 Qa8 Rg8 h8Q Qb3 Qh7+ Be7 Qhd3 Rf8 Rf1 Kd8 d7 Bc5 Rg1 Kc7 d8B+ Kd7 Ne4 Nf2 Ba5 Nh1 Be1 Ne6 Bg3 Nd4 Kd2 c1N Nf2 Nac2 Bh2 Ncb4 Rg8 Qa2 Qa3 Qb3 Rh8 Nca2 Rh7+ Ke8 Rc7 Nc3 Kc1 Bh3 Rc6 Bg2 Qa7 Kd7 Qa1 Rbc8 b8Q+ Rc7 Qa3 Rb7 Qaa8 Rb6 Qa1 Nc7 Q8a3 Nca6 Qd6+
1R2k3/3br2P/N2qbbr1/K2n2b1/3Q1BQ1/2QpP1RB/1PPp3Q/1n3q2 b - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 h5 gxh5 a5 a4 b5 axb5 a4 d4 cxd4 Kf2 a3 Ke1 a2 Qd3 axb1Q Qd2 Ba6 Qd1 Bc8 Kd2 g5 h4 d5 b6 f5 b7 f4 h6 f3 h7 g4 e6 f2 e7 d3 Kc3 d4+ Kb4 g3 h5 g2 h6 Be6 Ra2 Bg7 Ra6 Bf6 Rb6 Nd7 b8Q Ne5 Nf3 g1B Bh3 f1B Bf4 d2 Ne1 Nc4 Nd3 Na3 Nc5 d3 Na6 Ra7 Ka5 Be3 Rg1 Bg2 Qd6 Bc6 Rg3 Bcd7 Qd4 Qc1 Qg1 Nb1 Qh2 Qf1 Qc3 Qc7 Qd4 Qd6 Rb5 Bf2 e3 Bg5 Qc3 Nf6 Qd4 Rg8 h8Q Nd5 h7 Be1 Qc3 Bf2 Qhd4 Rg6 Rb8+ Kf7 Rg2 Bfh4 Rg4 Bf6 Rg3 Bhg5 e8Q+ Kg7 Qec8 Kf7 Q8c4 Rc7 Rb7 Ke8 Rb5 Bc8 Rb8 Re7 Qe4 Bd7 Qc4d4 Be6 Qf3 Bd7 Qg4 Be6 Rb3 Bcd7 Rb8+
KB3q2/PNpBr1P1/qB1P1R1q/1P1k4/n3rp2/2qQQ3/2b3Rn/4Bb2 b - - 0 1 legal: proof: e4 a5 h4 g5 c4 gxh4 c5 d5 exd5 b6 cxb6 Bh6 Bd3 Bg7 Bf1 Bf8 f4 e5 b4 e4 b5 Be7 Na3 Bf6 Nc2 Bb2 Nb4 Be5 fxe5 axb4 Ke2 Kd7 Ke3 h5 Kd4 f5 Kc5 h3 a4 b3 g4 e3 d4 f4 a5 b2 d6 Ke6 b7 b1B d5+ Kf7 a6 h2 g5 h4 d7 e2 g6+ Ke7 a7 e1Q d6+ Ke6 g7 h3 Ra2 Qg3 Be3 Na6+ Kc6 Qe8 Bb6 Nc5 Qd3 Na4 Ne2 Nh6 Nc3 Ng4 Rg2 Qf8 d8B Bc2 Bh4 Rh6 Rhg1 h1Q Ne4 h2 Be2 Qe3 Be1 Rf6 Bf3 Rf7 Bd1 Re7 Nc5+ Kf7 e6+ Kf6 Bf2 Ke5 Be1 Qd2 Bf3 Qc3 Be4 Rb8 Bg6 Ra8 Be8 Rb8 Bd7 Ra8 Rf1 Qg1 Rf3 h1Q Rfg3 Nh2 Rg6 Qe3 Rh6 Qh3 Rf6 Qh6 Bh4 Qha1 Be1 Rf7 e7 Qaa3 e8Q+ Re7 Bf5 Be6 Bh3 Bc4 Bd7 Rc8 b8B Rd8 Qdg6 Bf1 Kb7 Kd5 Ka8 Re4 Qe7 Re8 Nb7 Qa2 Qef7+ R8e6 Qe8 Re7 Qg3 Nb2 Qeg6 Qa6 Qe3 Na4 Qgg3 Qc4 Qgf3 Qc6 Qfe2 Qc3 Q2d3+
Nq4r1/pq1n2nP/PNNQ1Nbp/6qR/3PRQP1/5B1k/1bn5/5Kb1 b - - 0 1 illegal: No possible last move
b1N2B1B/2kP1P1K/2n3nP/Bn2p3/6Q1/r1Qn1pR1/2q1P2n/4RBbb b - - 0 1 legal: proof: f4 d5 a4 b5 axb5 a5 c4 f5 cxd5 Ra6 g4 Rh6 Nc3 Rf6 Ne4 h6 Ng5 hxg5 Nf3 gxf4 g5 Ba6 gxf6 Bc8 Ng1 f3 Kf2 Kd7 Kg3 c5 Kf4 f2 Kg5 f4 Kg6 e6 h4 a4 b4 c4 d4 c3 h5 a3 b6 c2 f7 a2 b5 Nc6 d6 Bb7 d5 Qc8 h6 Ba8 Ba3 c1N b7 Nd3 b8B e5 b6 Kd8 d7 Bc5 b7 Ba7 Rc1 a1N Qe1 Nc2 Bf8 Na3 Qc3 Nb5 Re1 Qc7 Nf3 Nge7+ Kh5 g5 Nd4 g4 Nf5 g3 Rg1 g2 Nd6 Rg8 Nc8 Rg3 Bg7 Bd4 Bh8 Ng6 Ba7 Bc5 b8Q Be3 Bc5 Rf3 Rh1 g1N Bf8 Rg3 Qb6 Nf3 Rg1 Nh2 Qbd4 Rf3 Qe4 Bc5 Qa4 Re3 Qac4 f3 Rg3 Ba7 Qg4 Bb6 Bg2 f1B Kg5 Bd4 Kf6 Bc5 Kg7 Ba7 Bh3 Bg2 Kh7 Bh1 Bf1 Ndb4 Qc1 Ra3 Qc3 Bg1 Rc1 Qb6 Re1 Kc7 d8B+ Kb8 d6 Qc5 d7 Nd3 Qb3 Qc2 Ba5 Kb7 Qc3 Kb8 Bab4 Kc7 Ba5+
3Br1b1/3PQ1R1/pKQ1n1bR/1bPBbn2/2PpN3/q7/2kPR3/2q2R1b b - - 0 1 legal: proof: e4 c5 h4 d5 b4 b5 a3 f5 h5 a6 Nc3 d4 h6 Qd5 exd5 gxh6 Ne4 fxe4 bxc5 b4 a4 h5 Ba3 h4 Bc1 Ra7 Rh3 Rb7 Rh1 Rb5 axb5 Be6 Ra2 Bg4 Ra1 Bc8 Ke2 Kd7 c4 h5 g4 e5 f4 e3 Kd3 e2 d6 Ke6 b6 e1Q g5 Kf5 b7 e4+ Kc2 b3+ Kb2 e3 Ka3 Ke4 Kb4 e2 Ka5 Kd3 f5 b2 f6 b1B g6 h3 f7 h4 g7 h2 Nh3 Nd7 b8Q Qg3 Bg2 e1Q Qb5 Nh6 g8R Nf5 Ng5 h3 Ba3 Bg7 f8R Be5 Re8 Nf8 Rg7 Ne6 Qc6 Bd7 Qe2+ Kc2 Bb4 Qa3+ Kb6 Qec1 Ba5 Rf8 Rf1 h1B Bd5 h2 Ne4 Bf3 Qe3 h1B Ree7 Be8 d7 Bf7 Qe2 Re8 Qe1 Bg8 Qh4 Qa4 Ra3 Bd1 Rh3 Qaa3 Rh2 Kb2 Qg5 Ba4 Rh6 Bb5 Qf6 Nf8 Re6 Bd3 Qe7 Kc2 Reg6 Ne6 Rg2 Be2 Rgh2 Bh5 Re2 Bg6 Kb7 Bg2 Bd8 Bh1 Kb6
3rBk1Q/1K1Qr3/N4q2/1P1Np2b/NB1bqPP1/1p3b2/1P2r1r1/1Nn1R3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 c4 gxh4 cxd5 f5 exf5 Bb7 Qb3 Ba6 Qd1 Bc8 Na3 a5 Ra2 b4 Rh3 Nc6 Nb1 Na7 Na3 Nb5 axb5 a4 Nc4 a3 Ra1 a2 Na3 Qd6 Rh1 Qd8 Rb1 axb1Q Ke2 c5 Ke3 e5 d4 h5 f4 b3 g4 c4 d6 h3 d5 h4 f6 c3 f7+ Kd7 Bg2 c2 Ke4 h2 Ne2 h3 Re1 h1R Nc3 h2 Bd2 c1R+ Qc2 Rh7 Na4 Qf6 Bb4 Rg1 Qd3 Kd8 d7 Bc5 f8N Ke7 d8N h1B Nfe6 Bd7 Nc7 Be8 d6+ Kf8 Kd5 Bd4 d7+ Re7 Nb7 Bh5 Nbc5 Rc2 Qh7 Nh6 N5a6 Nf5 Bf3 Re8 d8Q Rgg2 Qd7 Rce2 Be4 Ng3 Bg6 Qbf5 Nb1 Rd8 Be8 Q5g6 Bd6 Qgf5 Kc6 Qe4+ Nd5 Rgf2 Qe6 Bf3 Qd7 Rh2 Kb7 Reg2 Bb4 Ne2 Qf5 Nc1 Qg6 Re2 Qh7 Rhg2 Qh8+
QQK2k2/1N2Rn2/1P3b2/1Pn1q1N1/q2BbNr1/1P5p/1pBN1P2/3n2bb b - - 0 1 illegal: No proof kernel
1Rq3n1/B3pqN1/1P1QQ2N/1k2K3/r2pn1P1/1nP3PN/bq5N/1q1B2r1 b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 cxd4 e5 f6 exf6 Ba6 Nh3 Bb7 Ng1 Bc8 f4 Qa5+ b4 Bb7 f5 Bh6 g4 Bc8 Ra3 Qc7 Rf3 Qd8 Rf4 gxf4 Be2 Bg5 Bf1 Bh4+ Kd2 Bg3 hxg3 Nc6 Ke1 Nb8 Ke2 h5 Kf3 d5 c3 Kd7 f7 a5 f8Q d3 f6 a4 f7 h4 b6 Kc6 b7 h3 Nd2 h2 Bh3 a3 Bg2 a2 Nf1 a1N Nh3 d2 Qh6+ Kb5 f8N Na6 b8N Be6 Nbd7 Qc8 Ne5 Nc5 Nf7 Nab3 Qg6 Ra2 Nh6 Ne4 Qf6 Bf7 Ne6 Ra4 Ng7 Rh7 Rg1 h1Q Nh2 Be6 Qe1 d1Q+ Qe2+ Qd3+ Be3 Qdc4 Rb1 Qc1 Ba7 d4 Qa2 Qb2 Qe5+ Qd5 Qd6 Qh5 Bf1+ Bc4 Bd3 Qf7 Bc2 Be6 Ke2 f3+ Kd3 f2 Bd1 Qa3 Qe2 f1Q Rb2 Qg1 Rb1 Qb2 Qe3 Ng5 Qe4 Bd5 Qee6 Ne4 Nh5 Nbd2 Be2 Nef6 Nf2 Ba2 Nf3 Qa3 Ng7 Qe1 Rb3 Qb2 Nhf5 Rh1 Nh6 Rg1 Nh2 Qd1 Nh3 Qdc1 Bb6 Ka6 b5+ Kb7 Bd1 Qca1 Rb4 Nb3 Ba7 Qab1+ Bc2 Nd7 Ke4 Ndf6+ Ke5 Ne4 Bd1 Qc7 b6 Ka6 Rc4 Kb5 Rc6 Qb7 Rc8 Qd7 Ra8 Qc8 Rb8
n6q/1p1qP3/2R2Q2/1n1q1N1b/1BP1q2b/bP1P4/K1N1BQBp/3r2Bk b - - 0 1 legal: proof: f4 d5 h4 a5 e4 c5 b3 g5 Na3 e5 Nb5 a4 Rb1 c4 Nc7+ Kd7 Rb2 a3 exd5 gxh4 Bxc4 axb2 a4 e4 Bf1 Ra6 Rh3 Re6 Rh1 Re5 fxe5 Be7 Kf2 Bc5+ Ke1 Bf8 g4 b1Q c4 f5 g5 h5 e6+ Kd6 g6 Ke5 g7 Kf4 a5 Kg3 a6 h3 a7 e3 a8Q f4 d6 h4 d7 e2 Ba3 h2 Bb2 f3 Nd5 h3 Qa2 Nc6 Ba3 Qe4 d3 f2+ Kd2 e1B+ Kc2 Nd4+ Kb2 Nb5 Qda1 Ne7 Nb4 Nd5 g8B Nb6 Nc2 Na8 Be2 Kg2 Nf3 f1Q Bb4 Bh4 Nfd4 Qff3 Nf5 Rh7 Re1 h1Q Bf7 Qc7 d8B Qd7 Bb6 Qh2 Bg1 Kh1 Bg8 Qed5 Kb1 Qfe4 Qf6 Bc5 e7 Qhe5 Qf7 Qh8 Qf6 h2 Qab2 Rg7 Ka2 Rg4 Rf1 Rf4 Ra1 Rf1 Qbd4 Rd1 Qf2 Qdd4 Bd5 Bd6 Bc6 Qdd5 Kb2 Bc5 Ra6 Bd6 Ka2 Bc5 Ba5 Ba3 Bb4 Qg4 Nh6 Qde8 Bd7 Qge4 Bh3 Bg4 Rc6 Bh5 Nf5 Qed7 Bg2+
1n4Rr/N3b2P/R1nkNP2/5rp1/R1R1P2Q/1b2BPb1/nb1Q3p/6nK b - - 0 1 illegal: No proof kernel
1b1R1qQ1/2n3Pn/1n1Q2N1/1rppp3/3r1QP1/P1bNbR2/1Q1B1P2/3k1K2 b - - 0 1 illegal: No proof kernel
1b3NK1/2pbR3/1p2PNP1/1PpB4/1k2q3/QrnqQ1P1/1nr4B/Q2q1Q2 b - - 0 1 legal: proof: e4 d6 e5 Kd7 e6+ Kc6 Ba6 Kd5 Bf1 Bd7 exd7 Kc6 f4 e5 Be2 e4 Ba6 Kd5 Bf1 Ke6 Nh3 Be7 Ng1 Bf6 Nh3 Ke7 Ng1 Be5 fxe5 Qe8 Nc3 Qf8 Nb1 Qd8 b4 a5 h4 g5 c4 Na6 a4 Qf8 hxg5 Qc8 c5 dxc5 b5 Qd8 Ra2 Nb8 Rb2 Nh6 Rb3 Ng8 Rb4 axb4 Kf2 h5 Kg3 f5 Kh4 e3 d4 b3 a5 e2 d5 e1B+ g3 f4 d6+ Ke6 a6 f3 a7 b2 Bd2 Kd5 e6 f2 Rh2 Nc6 Nf3 Nge7 g6 Na5 Kg5 h4 Kf6 h3 Kf7 Nc4 Bg2 f1Q Be3+ Qd3 Nbd2 b1Q Ne4 Ba5 Nfg5 Nb2 Nh7 Kc4 Nf8 Nd5 Nf6 Kb4 Qf1 Bb6 Bg1 Nc3 Bd5 Rh6 Rd2 h2 Kg8 h1B Bh2 Rh4 Rf2 Rc4 Rf4 Qbd1 Rh4 Qe8 d8Q Qc6 d7 Bf3 Qe7 Rd8 a8Q Ba7 Qe8 b6 Rh7 Bb8 Qa1 Qa8 Re7 Qaa4 Bb7 Bc6 Qf7 Qac2 Qf2 Qe4 Qe3 Qcd3 Ba8 Rc8 d8Q Bd7 Qde8 Rd8 Bd5 Ne2 Qh7 Rc2 Qh3 Nc3 Qf7 Ba7 Qh5 Ra8 Qh3 Bb8 Qf1 Ra3 Qe8 Rb3 Qd8 Ba7 Qa8 Bb8 Q8a3+
k1Q5/5P1P/3qn1Bn/2NpQ3/pq1qR1Pr/2p1PrNn/N1KB4/N5b1 b - - 0 1 illegal: No proof kernel
r4bNQ/2PqB1P1/4qQ2/p1p2RNp/6r1/1k2q2P/2nN1RP1/1nr2NK1 b - - 0 1 legal: proof: e4 b5 d4 g5 f4 b4 fxg5 b3 d5 Nh6 d6 Bb7 axb3 Bc6 b4 Bd5 b5 Ng8 exd5 c6 b4 Qb6 c4 Qc7 b6 Qd8 b5 Bh6 c5 cxb5 c6 b4 c7 Bg7 Bb5 Bf8 Bc6 dxc6 Kf1 Kd7 g6 a5 h3 f5 b7 h5 Qc2 e5 Bg5 c5 Qe4 f4 Rh2 b3 Na3 f3 Nc2 b2 Rh1 f2 Ne3 Nc6 b8Q Nge7 Nf3 Nd4 Qh4 e4 Nd2 Nc2 Ra2 Rg8 Qf4 Qe8 Qf6 Qf7 Rg1 Qe6 Bh4 Na3 Rh1 Nf5 Bg5 Nd4 g7 Ndc2 Rg1 Nb1 Rh1 Rh8 Rg1 Rh6 Rh1 Be7 Qh8 Rg6 Rg1 Bf8 Rh1 Kc8 d7+ Kb7 d8N+ Kb6 d6 Kb5 Nf7 Kb4 Nh6 Qd7 Bh4 Rg4 Ng8 Qe6 Nec4 e3 d7 Re4 d8N Rg4 Nf7 Qd7 Nf3 Kb3 Nh2 Qe6 Ng5 Qd7 Ke2 f1R Rg1 Rd1 Rf1 Rc1 Rf5 Qe6 Kf3 e2 Kf2 Qd7 Nf1 e1Q+ Kg1 Qe3+ Kh1 Nc3 Kh2 b1Q Kh1 Qb2 Kh2 Nb1 Ncd2+ Kb4 Kh1 Qbb3 Kh2 Qee6 Kg1 Qg3 Ra3 Qge5 Raf3 Qe3+ Rf2 Ka4 Bg3 Ka3 Bd6 Kb4 Be7 Ka4 Nde4 Kb3 Nd2+
1qq1NN2/2pq1p2/5p1K/4PP1Q/2Pb1BNR/rR1n1b2/1q3NqP/2k4Q b - - 1 2 illegal: No possible last move
Qk1b2RN/4p2Q/1p3Prp/r2B4/P3n1bp/1bQ1P3/5PBq/K2Q2Rn b - - 0 1 illegal: No proof kernel
1nr1rRBB/1Q1R4/Q2qP3/8/pN1k1PK1/1Pp2rB1/P1n1b1pp/B2r4 b - - 0 1 legal: proof: g4 d5 h4 Kd7 Na3 b5 Nc4 bxc4 Bh3 f5 Bf1 g5 gxf5 d4 c3 dxc3 Qc2 g4 Qe4 Bh6 Qe5 Bg5 hxg5 Kc6 Qe6+ Kb7 Qxe7 Kc6 d4 Kd5 e4+ Kc6 Ke2 a5 f4 h5 e5 Kd5 b3 c5 g6 a4 g7 h4 f6 g3 Kf3 c2 f7 g2 f8B c3 Nh3 c4 Qb7+ Nc6 Nf2 h3 Bb2 c1R Nd3 c2 Nb4+ Ke6 d5+ Kf5 d6 c3 d7 Nb8 Bc4 Nf6 g8Q Nd5 Bg7 Rd1 Rb1 c1R Ba1 Qc7 d8B Ne3 Bh4 Nc2 Bg3 Qd6 Rb2 Be6 Qgc8 Re8 Bh8 h2 Re1 Bd7 Bg8 Be6 Qcc6 Bc4 Qca6 Rd3+ Re3 Rcd1 e6 Na3 Rd2 Nc2 Ke2 Bb5 Re4 Rf3+ Rc4 Nd7 Rd3 Rac8 Rc7 Nb8 Rd7 Bc6 Rd5+ Ke4 Rf5 Bd5 Rg7 Kd4 Rf8 Rfd3 Kf2 Bc4 Ke2 Ne3 Kf3 Nc2+ Kg4 Rf3 Kg5 Bf1 Kg4 Be2 Rd7+
1bb2R2/Prb1Bp2/p1p3r1/n1K5/4NpN1/Q2PPQ2/p1PR2R1/1k3n1R b - - 0 1 illegal: No proof kernel
bn2k3/2K4p/1p1rrQ1p/2pB1r1B/n1P1Q1Rp/RP4r1/B4PPN/2B5 b - - 1 2 illegal: Other
2Q2Q2/1Nn1n1P1/p2p1R2/1q3r1B/1pR4P/1NQpP1P1/2kpp2r/K2b3Q b - - 0 1 illegal: Other
4Qq2/2NppR2/PB2rr2/p4B2/2n1rp1K/Pp2Pk1p/1QR2Pp1/6RR b - - 2 3 legal: proof: d4 a5 c4 c5 g4 b6 b4 cxd4 b5 Bb7 Nc3 Ba6 bxa6 dxc3 h4 f5 g5 g6 Bf4 Bg7 Bd2 Nc6 Bc1 Ne5 Bf4 Nf7 Bc1 Bf6 gxf6 g5 Rb1 g4 Ra1 Ng5 hxg5 Kf7 Rb1 Kf8 Ra1 Ke8 c5 Kf7 c6 Ke6 g6 Ke5 a3 Ke4 f7 h5 f8R c2 c7 b5 c8R g3 g7 f4 Bh3 b4 Nf3 g2 Rf7 h4 Qd2 b3 Nd4 Rb8 Ne6 Rb6 Nc7 Nf6 g8Q Re6 Qe8 Rf8 e3 Ng4 Ke2 Ne5 Bb2 c1R Bd4 Rc4 Rag1 Rb4 Bb6 Nc4 Bg4 h3 Bf5+ Ke5 Kf3 Ra4 Rh7 Rff6 Kg4 Rb4 Rf7 Ra4 Qg8 Qf8 Kh4 Rb4 Bg4 Ke4 Bf5+ Kf3 Qb2 Nd2 Qg6 Rbe4 Qg8 Nc4 Qh8 Qg7 Qe8 Qf8 Nb5 Nd6 Rc2 Nc4 Nc7
3bn1b1/B2qBrP1/Nn1pBr1k/3Pq2Q/1n5b/2R3P1/1Nr1PQ1q/4BK2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 a4 exf4 Ra2 Qb6 Rb2 Ke7 axb5 Qf6 b6 Ke8 b5 Qd8 Rb4 cxb4 c4 h5 d4 a5 g6 f5 b7 a4 c5 h4 c6 d6 b6 h3 d5 b3 c7 b2 g3 a3 g7 Kf7 Qd2 Kg6 Qe3 a2 Qd2 a1B Qc3 f3 Nd2 b1N Ne4 h2 Ba3 f2+ Kd1 f4 Bg2 f1R+ Qe1 f3 Ng5 f2 Bh3 Rh6 Ne6 Nd7 b8B Bf6 b7 Bh4 Ba7 Ngf6 b8B Ne8 Bb4 Na3 Nf3 Nb6 Nd2 Nc2 Nc4 Bfe7 Nc5 Be6 c8Q Bg8 Na6 Qd7 Be6 Bd8 Nb2 Kh7 Bc3 Nb4 Bc7 Rf6 Rg1 h1Q Kd2 Be7 Bd8 Qh2 Qc4 Rb8 Qg4 Rc8 Rh1 Rf7 Qh3 Bf6 Be7 Kh6 Kd1 Bg5 Bd2 Rc2 Qf5 Rg1 Qf1 Rf6 Be1 Rf7 Qg2 f1Q Qgf2 Qfg2 Qg4 Rf1 Qgf5 Qe4 Qg4 Kh7 Qh5+ Bh6 Qg1 Qh3 Bf6 Rf2 Bec3 Qh2 Ke1 Rd2 Qg2 Qe5 Rf1 Rf5 Rf3 Rc2 Kf1 Rf4 Be1 Rf5 Qg4 B6g5 Qf2 Kh6 Rc3 Rf3 Be7 Bf6 Bf8 Bd8 Be7 R3f6 Qh5+
3q2kQ/2Prq3/nr2nbbP/pbQN4/3rR1RR/P1B5/2nP1N2/2qR3K b - - 0 1 illegal: No possible last move, all moves rejected
nRk5/5pRq/3bn3/5PB1/P1N1P1r1/PQ1rN1N1/rr2r1N1/1bKQ1b1n b - - 0 1 legal: proof: h4 g5 c4 gxh4 b3 d5 cxd5 a5 Nh3 a4 bxa4 Nd7 Ng1 Nb8 d4 Kd7 e3 e6 d6 Na6 d5 Nb8 Bc4 Ke8 d7+ Ke7 Bb3 Kd6 Bc4 Kc5 d6 Kc6 Bd5+ exd5 Kd2 b5 g4 Kb7 f4 c5 g5 h5 f5 d4 g6 b4 e4 d3 a3 c4 g7 c3+ Ke1 c2 Kd2 b3 Nc3 h3 Nd5 b2 Qg4 b1B Qf4 h4 Ne7 h2 Qf2 h3 Nc6 Na6 Qc5 Rb8 Ne5 Qh4 d8Q Nc7 d7 Na8 Qc3 Ne7 g8N Qh7 Qd4 Nc6 Qf2 Bd6 Qf4 Nd4 Ne7 Rg8 Nc4 Ne6 Ne2 Rg4 Rg1 h1R Nd5 Rh2 Qg3 Rf2 Qf3 h2 Nde3 h1N Rg3 Rf1 Rg2 Re1 Ng3 Re2+ Kc3 d2 Kb2 Ba2 Rb1 d1R Rg1 Rd4 Bd2 Rd3 Kc1+ Kc6 Rb3 Ba6 Rg2 Rb4 Qb8 Bb5 d8N+ Kd7 Qf1 Bb1 Qd1 Ba6 Qb5+ Kc8 Qb6 Nc5 Ne6 Rb5 Nf4 Ne6 Rg1 Rb4 Nfg2 Rb5 Kb2 Rb4 Qb5 c1R Qd5 Rb7 Rb6 Rcc3 Qb5 Rb3+ Kc1 Rb2 Qbb3 Rd7 Nd5 Rc7 Bg5 Rc6 Rb7 Rb6 Nde3 Ra2 Qbc2 Rbb2 Qb3 Bb5 Rb8+ Kc7 Nh4 Rh2 Ne5 Rd4 Bh6 Rg8 Nh5 Bf1 N5c4 Rhe2 Rg4 Rg6 Ng3 Rd3 Nhg2 Rg8 Rg6 Kd7 Rf6 Rg5 Rg6 Rg4 Bg5 Kc7 Rg7 Kd7 Rb6 Kc8 Rb8+
1B6/r1Q2bPK/2pr2RB/2PB1q2/2NbPknn/1B2bqNP/8/1r1Q1r1r b - - 0 1 legal: proof: b4 e5 a4 b5 axb5 h5 g4 g5 d4 Ba6 f4 Bc8 Ra3 Ne7 Rg3 Ng8 dxe5 gxf4 g5 Bg7 Rg2 Bf8 Rg4 hxg4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kd3 d5 c4 a5 e4 g3 c5 g2 g6 f3 b6 d4 b5 a4 b7 c6 b6 a3 Qd2 a2 Qe1 a1R Qe3 f2 Bb2 f4 Ne2 g1B Na3 f3 Ng3 Ra7 Qe2 Rb1 Nc4 Qg5 Bc1 Nh6 Qd1 Nd7 b8B Ng4 b7 Bh6 g7 Qf5 h3 Be3 Rh2 Rd8 Rg2 Nf8 Be2 f1Q Bd2 Bef2 Bh6 Ng6 Kd2 Be3+ Kd3 Ke7 e6 Kf6 e7 f2 e8B Nh4 Bf7 Rd6 Bd5 Bd7 Na5 Be8 Nc4 Qe1 Bf3 f1R Be2 Qef2 Bf3 Nh2 Bh5 Q2f3 Bhf7 Ng4 Bfe6 Bef2+ Kd2 d3 Kc3 Ne3 Kd4 d2 Bf7 Qd7 Be6 Kg6 Ke5 Bf7 Bc7 Qc8 b8Q Qf8 Qb7 Qc8 Bb8 Qd7 Qdb3 d1R Qc7 Rde1 Qd1 Qc8 Nf5+ Kh5 Kf6 Ng4+ Ke7 Qd7+ Kf8 Be3 Ng3+ Kg6 Qa5 Bgf2 Qc7 Rh1 Rg1 Rf1 Rg2 Bd4 Rg1 Bfe3 Rg2 Be8+ Kg8 Kf6 Kh7 Bf7 Na3 Ke5 Bb3 Qe7 Bed5 Qg5 Nc4+ Kf4 Nf5 Nh2 Nb2 Ke5 Rg3 Qf6 Rg5 Ng4 Ng3+ Kf4 Nc4 Qf5+ Rg6+
RQb1Qn2/2qQ3p/NP1b3r/2Bb4/1q1b1N1P/5PK1/nr1R1rP1/kbQ5 b - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 g6 Be2 g5 h4 Bh6 Bg4 Bf8 Bh3 g4 Ra6 gxh3 Ra3 Na6 Ra1 Nb8 b4 Kf7 c4 Kf6 b6 Ke5 c5 a5 b5 d5 c6 a4 f6 d3 f3 Kd4 Kf2 e5 b7 a3 c7 h2 f7 a2 Nc3 d2 Na4 e4 Qb3 d1B Bf4 e3+ Kg3 e2 Bh6 e1Q+ Kf4 Na6 b8Q Nf6 Qc2 Nd7 Qb7 Nb4 Qe2 Bb3 Rb1 a1B Qa2 Bd6+ Kg4 Nf8+ Kh5 Ra6 Qc2 Na2 Qbc6 Qb4 Nc5 Bb2 Qe2 Kc3 Ra1 d4 Nh3 d3 Qd7 d2 Rhd1 h1R Nf4 Rf1 Kg4 Bd5 Qe8 Rf2 Kg3 Kc2 Bg5 Bd4 Be7 Rc6 Na6 Kb2 Rh1 d1B b6 Bc2 Rhd1 Bb1 Rd2+ Rc2 Bf6 Rg8+ Bg7 Bcb7 c8Q Qc7 Qb8 Bc8 Qe3 Ng6 Bf8 Rg7 Be7 Rg8 f8Q Rg7 Qfe8 Nf8+ Qg4 Rg6 Qe1 Rh6 Qgd7 Nc1 Ra3 Na2 Qc1+ Ka1 Ra5 Rb2 Ra4 B6e5 Bc5 Bd6 Ra5 Qc4 Nb4 Qc3 Ra8 Qb3 Na6 Qa3 Re2 Qb4 Rd2
1bb4K/rQ3NQ1/qBrr3P/q2QpkP1/4r1n1/n1R5/qP2P1R1/1Nr3Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g6 axb5 g5 c4 d6 Bh3 gxf4 g5 d5 Bg4 hxg4 cxd5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Kd7 d4 f5 h4 e5 h5 c5 h6 a5 d6 Ke6 b6 a4 b7 f3 Ke3 g3 d7 c4 Ra2 g2 Qd3 c3 Qc2 a3 Ra1 a2 Rh3 f4+ Ke4 f2 Qd2 f1Q Na3 c2 Qe1 f3 Nc4 f2 Rc3 Na6 b8Q Ra7 Nd6 Nb4 Be3 c1R Nf7 Bd6 Qb7 Nc2 Nf3 g1R Nd2 Bb8 Nb1 Qa5 d8Q Na3 Qf8 Rg2 Qg7 Rg4+ Kd3 Re4 d5+ Kf5 d6 Qh3 d7 f1R d8Q Nf6 Qdd5 Ng4 Qf2+ Qf3 Qg1 Qf2 Bb6 Rd8 Nd2 Rc2 Re1 a1Q Nb1 Qh4 Rd1 Rd6 Rc1 Rf2 Rf1 Rff4 Rf2 Rc1 Rg2 Rc4 Bc7 Qa2 Bb6 Nf6 Ke3 Rfe4+ Kf3 Qh5+ Kg3 Qg6 Kh3 Ng4 Kh4 Qe6 Kh5 Kf4 Bd4 Rcc6 Bb6 Nf6+ Kg6 Ng4+ Kh7 Kf5 Kh8 Qg6 Qdd1 Qge6 Qd2 Qec4 Qdd1 Qca6 Qd5
1r1q1k2/8/KnbbBr2/2NqnP1p/4BqPP/B1R1qb1n/PB3Q2/2Q4N b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 Qc7 Bd3 Qb6 Bf1 Qd8 f4 g5 f6 Bh6 f5 Ra7 Nd2 Bf8 Rb1 Ra4 Rb3 Ra7 Rf3 Ra8 Rf4 gxf4 Ke2 d5 Kd3 h5 g4 b5 h4 e5 c4 b3 c6 e4+ Kd4 b2 c5 b1Q c7 f3 c6 e3 Bc4 f2 Bd3 f1Q Bc2 e2 Ngf3 e1Q Ng1 b4 Ndf3 b3 Bb2 Ra6 Qc1 Bd7 c8Q Nh6 c7 Nf7 Qg5 Bc6 Rh3 Bd6 Nd2 Ne5 f7+ Kf8 Rd3 Nbd7 Qg6 Qbd1 Ne4 Qf4 Nh3 Nb6 Nf2 Qee3+ Kc3 Rg8 Nc5 d4+ Kb4 Bf3 Rc3 d3+ Kb5 d2 Qg5 Qh1 Qf6 d1N Be4 Qg2 Nh1 Nf2 Qg5 Nh3 Qd7 Qgd2 c8B Qd5 Qa7 Rh8 Be6 Rg8 Bc1 b2 Qh6+ Rg7 Qg5 b1B Bb2 Rg6 Bd3 Ra3 Be4 Rb3+ Ka5 Rf6 Ka6 Qh2 Qf4 Rb4 Qc7 Bc2 Qg3 Ba4 Qf2 Qhf4 Qc8 Ke7 f8B+ Ke8 Bg7 Bc6 Bh8 Kf8 Ba3 Nbc4 Qb7 Rb1 Qbb2 Nb6 Qbc2 Na4 Qcd2 Rb8 Qc1 Nb6 Qcc2 Rf7 Rc4 Ng6 Bhb2 Ne5 Qc1 Rf6 Rc3
Nn1R4/3qb3/1PN5/nb2P1kQ/1P1b2q1/2q1rp1Q/1RQ2PbQ/nK4Br b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb4 Bc4 Nc6 Ba2 Nb8 Bc4 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Qb3 Kf5 Qd1 Ke6 Kd2 Kf5 Kc2 c5 g4+ Kg5 b4 a5 b6 f5 e4+ f4 e5 h5 Be3 a4 Nd2 d4 Rh3 c4 Kb1 a3 Nf1 a2+ Kb2 c3+ Kc1 d3 Qf3 c2 Ne2 Ne7 Nd4 Ba6 Nc6 Bb5 Rb1 a1N Rb2 Ra3 Qe4 Qe8 d8Q Qd7 Qc8 Rc3 Rg3 h3 Qh1 h4 Qh2 Rh6 Bd2 Rh7 Ne3 Rh5 Nd5 Rb3 Nd8 Nec6 Nc7 Be7 Na8 Na5 Nc6 Rh8 Rg1 Rh6 Rd1 Rh5 Qg2 h2 Qh3 h1B Qh2 h3 Be3 Qd8 d7 Bg2 Rd2 Qe8 d8Q Qd7 Qe8 Ra3 Qg3 h2 Qh3 h1Q+ Rd1 Rh6 Qh8 Kg6 g5 Qe1 Qh2 f3 Bf4 Qc3 Qc7 Kf5 g6 Qe6 Bg3 Kg5 g7 Qg4 Qh3 Rb3 Bh2 Rh5 Bg1 Rh6 Qg3 Rh1 g8Q+ Kf5 Qgh7+ Kg5 Qcd8 Qe1 Qhh2 Rc3 Ra2 d2+ Kb2 c1B+ Kb1 Bb2 Qgh3 Re3 Qd3 Bc3 Qc2 Bb2 Rc1 d1Q Qe8 Qd8 Rd1 Qed2 Qeh8 Q2d3 Q8h7 Qdc4 Rd5 Bd4 Rb2 Qc3 Rd6 Qdc8 Rd8 Qcd7 Q7h5+
k2r1b2/B1N3Q1/p7/PQRq4/QrPqQ2P/3B1br1/1n1qbPN1/4b1Kn b - - 0 1 legal: proof: d4 c5 g4 f5 a4 fxg4 b4 h5 bxc5 e5 Ra3 h4 Rg3 hxg3 dxe5 Rh6 Nf3 Rh4 Ng1 Rh8 e4 b5 h4 d5 c4 Kd7 a5 Kc7 c6 g5 e6 b4 e7 g2 e8Q d4 e5 a6 e6 b3 e7 g3 Bd2 b2 Na3 b1R Nf3 g1Q Qc1 g4 Ne5 d3 Qf7 g2 e8Q+ Ne7 Rh2 g3 Qe6 Rg8 Rh1 Qd4 Bg5 d2+ Ke2 d1B+ Ke1 Nf5 Nd7 Be2 Be7 Bb7 Q8f7 Rb4 Nb6 Nd7 Qce3 Kb8 Qb3 Nc5 Nd5 Na4 Nb5 Nb2 Qe4 Rg4 Rh2 Qh1 Qg7 g1B Qa4 g2 Nbc7 Ng3 Bc5 Rg5 Rh3 Bh2 Ne3 g1Q Bb6 Qf3 Ng2 Nh1 Rg3 Qh5 Rf3 Be5 Rf5 Rg3 Qb5 Bf6 Rc5 Qhd5 Qa4 Qh2 Qb5 Qh3 Qa4 Qhd7 Qb5 Bd1 Bd3 Q7d6 Kf1 Be2+ Kg1 Bg5 Kh2 Bd2 Kg1 Be1 Qa4 Qf4 Qb5 Qd2 Ba7+ Kc8 Ne8 Rb8 c7 Bc6 Qa4 Kb7 c8Q+ Ka8 Qcf5 Rd8 Qfg5 Bd7 Q5e5 Bdg4 Q5f5 Bh5 Qfd7 Bhg4 Qdb5 Bgf3 Nc7+
1bQb1Q2/1bN1n2n/1P3pNr/2R4Q/1KB1nP1r/r3B1P1/q2Pq3/2rk3Q b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 gxh4 c4 e5 cxd5 e4 f4 Na6 Ra3 Nb8 Rf3 exf3 e4 Ke7 d6+ Ke6 g3 h5 b6 a5 b7 c5 d7 f6 b5 h3 e5 Kd5 b6 Ke4 e6 c4 e7 h2 e8Q+ Ne7 Bb2 f2+ Ke2 h4 Ba1 a4 Na3 c3 Qc1 c2 Bc3 h3 Qe1 c1R Bb4 Rh6 Nb1 a3 Qh5 a2 Qg5 a1B Qd1 Ra3 Qg4 Be5 Qh4 Qc7 d8Q Qc2 Qd6 Nd7 b8Q Bb7 Qc8 Qa2 Qg4 Rh4 Nf3 Rh6 Rg1 h1R Bc5 h2 Be3 Rh4 Qdc5 Bb8 Ne5 Rh6 Qg8 Rh4 Ng6 Rh6 Bh3 Rh4 Be6 Rh6 Kf1 Kd3 Nc3 Rh4 Qe1 Kc2 Ke2 Rh6 Bc4 Rh4 Bd4 f1Q+ Ke3 Rh6 Qh5 Qg2 Bc5 Qf3+ Kd4 Qe2 Qh3 Rh4 Nd5 Rh6 Rf1 Rh4 Rf3 Rh6 Qef1 Rh4 Qfg2 Kd1 Nc7 Rh6 Re3 Nd5 Rc3 Be7 Bb5 Nf8 Qh5 Nh7 Qgf8 Bd8 Qgf3 Ne7 Rc2 Ra4+ Kc3 Ra3+ Kb4 Rf1 Qfd5 h1N Qg2 Nf2 Be3 Ne4 Rc5 Rh1 Bc4 Rh4 Qh1+
b5nb/3p1NRB/R1qQ2K1/1b3rR1/1P1q1Pr1/P1q1Bn1R/3P4/2nQkq2 b - - 0 1 legal: proof: e4 h5 c4 b5 g4 f5 exf5 bxc4 gxh5 a6 Na3 a5 Nc2 a4 b4 Ra6 Nd4 Ra8 Nb3 axb3 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 f4+ Kh4 h6 c5 h7 e5 h3 Kg3 h4 Kf2 a3 g5 f6 c3 Kf5 b2 f7 b1B+ Bd3 c4 h5 c2 h6 c3 Bc4 e4 Be2 g4 Bf1 e3 Bb5 g3 Rh2+ g2 Bd3 e2 Bb5 e1Q Ba4 Qf1 Rh3 Bb7 Bb3 Qb6 Bc4 Bg7 f8Q Qc6 Nf3 g1Q Ne5 Ra5 Qd6 Ba8 Bb2 c1N+ Bd3 c2 Rh5 Ba2 Rg5 Bc4 Kg6 Bb5 Nf7 Qc3 Bf5 Nc6 Be4 Nd4 Bd3 Nf3 Rb1 Qe5 Bd4+ Qe3 Rb3 Qh1 Rc3 Bf6 Rc6 Qhh3 Bc5 Qd4 Ra6 Qe6 Qd5 Qc6 Qd6 Bg7 Be4 Nf6 Bb6 Rg8 h8R Qc3 Rh7 Bh8+ Kf5 Rg6 Rg7 Ng8 h7 Qc6 Rh5 Rg4 Rhg5 Be2+ Kg6 Rf5 Ba7 Bb5 Bc5 Ne2 Ba7 c1Q Bc2 Qa1 Bc5 Nc1 Bb1 Kg2 Ba7 Qdc3 Be3 Qd4 Bd3 Qac3 Be2 Re5 Kh5 Kg3 Bd3 Rd5 Rg6 Bf6 h8R Re5 Rhh6 Bh8 Rg7 Rc5 Bh7 Rf5 Kg6 Kg2 Bg1 Kg3 Bh2+ Kf2 Rh3 Qe1 Bg1+ Kf1 Qc2 Qef2 Qa4 Ke1 Qb3 Qe2 Be3 Qf1 Qd1+
7q/rnB1pP1k/bRb1P1Rn/2P1n1QK/1bN1b3/rB1QP1RR/2n2b2/8 b - - 0 1 illegal: No proof kernel
k2bNnK1/1PPqp3/3b2nb/1r1B1Pn1/b4b2/1Q1R1Nn1/4P2Q/R1Nr3N b - - 0 1 illegal: No possible last move, all moves rejected
4NQ2/p1r2B2/2nb1Pb1/2bQ1rR1/4R1PR/nbP2Rn1/Pqn2N2/1kb3K1 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 f5 Bb2 g5 Bd4 f4 Be3 fxe3 hxg5 Bg4 Bc4 Bd7 Bf1 Bc8 f4 Kd7 d4 Kc6 g4 Kd5 c6 b5 c7 e5 c3 h5 f5 e2 Kf2 Kc4 d5 b4 d6 h4 g6 e3+ Kg2 h3+ Kh2 e4 g7 b3 f6 b2 d7 Ne7 g8R Nf5 Rg6 Nc6 Nf3 Rh5 Qc2 Ng3 Ng5 Bc5 Qa4+ Kd3 Nf7 Rf5 Kg1 h2+ Kg2 Qe8 Qd4+ Kc2 d8R e1N+ Kh3 e2 Qb4 e3 Rg5 Be6 c8Q Bb3 Qc7 Rc8 Qe5 Rc7 Rd6 Qb8 Nd2 b1N Rd3 Na3 Ne4 Kb2 Qed4 Nec2 Kg2 e1B Nfd6 e2 Rf3 Bd2 Re1 Bc1 Nf2 Kb1 Qd5 Qb6 Ne8 Bd6 Rd1 e1B Rd4 Bed2 Be2 Be3 Re4 Bec5 Bc4 Qb8 Qe5 Qb7 Bf7 Qb5 Qd5 Qb7 Rd1 h1B+ Kh2 Bg2 Rh1 Bf1 Kg1 Bd3 Qa4 Bbc4 Qa5 Qb2 Qb4 Bb3 Rh4 Re5 Ree3 Bg6 Re4 Rf5 Qb8 B5e3 Qd8 Bb6 Qe7 Bbc5 Qf8
5K1b/1r2QPpb/1k1P1rQ1/4nPP1/1B2r1n1/nb1b4/R4qRN/R1NR1r2 b - - 0 1 illegal: Other
2q3NB/n1r4Q/bb3bQ1/Q3PQq1/n1Rr1P1q/3B2pP/3b2P1/2qk1N1K b - - 0 1 illegal: No proof kernel
1b1n3B/2q1q1Q1/1kR4r/3n1Ppb/2nRn2r/1P1rN1PR/5P2/1RKN2rQ b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g3 b5 axb5 f5 exf5 h4 Bg2 h3 Bd2 hxg2 Be3 Rh3 Bc1 Rh8 Kd2 a5 h4 d5 c4 Kd7 c5 Kc7 b3 g5 c6 e5 h5 a4 h6 d3 h7 a3 Qh5 e4 Qh6 a2 Nh3 g1R Rh2 e3+ Kc3 d2 Kb2 d1R Qh4 d4 Nf4 d3 Ne2 d2 Nbc3 Bb7 Nb1 Ra4 Nbc3 Ne7 Nf4 e2 Rg2 e1Q Rb1 a1N Rh2 Nc2 Ng2 Na3 Rh1 Qe4 Ne3 Qe5 Qh3 Rh4 Qg2 Ba6 Rh3 Nd5 Qh1 Bd6 b6+ Kc8 b7+ Kc7 Ka2 Be2 Bb2 Qde7 Ba1 Bh5 Kb2 Nd7 b8R Nf8 Rb4 Ne6 Rg4 Kb6 c7 Nd8 c8R Bb8 Rc5 Nc4+ Kc2 Q5c7 Re4 Rg8 h8Q Rg6 Qg8 Rh6 Rf4 Rdf1 Qh8 d1N Kc1 Nd2 Rfc4 Ne4 Qf8 Re1 Qh8 Re2 Qd4 Nb2+ Ncd1 Rd2 Qh8 Na4 Bg7 Rd3 Rd4 Nb2 Qg8 Rd2 Bh8 Rd3 Qg7 Nc4 Rc6+
1qn1b2K/p2R1kP1/NrqQ2R1/P2P1r2/2b2R2/R2rb3/2NBbPr1/4n2Q b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 g5 hxg5 f6 Bd3 f5 Ke2 e3 Be4 Bd7 Kd3 fxe4+ Kc4 e2 Kc3 Bc8 d4 e1Q+ Nd2 b5 g4 e5 a4 h5 d5 h4 g6 e3 g7 h3 a5 e4 Kd4 h2 Ke5 e2 c4 e3 g5 b4 g6 b3 c6 b2 c7 b1B c5 Ba2 c6 Ne7 Kf6 Na6 g8Q Bd7 c8R Rh5 g7 Nb4 c7 Rb8 Ne4 Nc2 Qe6 Bc4 Qh3 Rb6+ Qe6 Qc3+ Qd4 e1R Ne2 Rh3 Bd2 Rg1 Ra3 Rg2 Qd6 Ne1 Rg1 h1B Nc5 Qc2 Ra8 Qb8 Na6 Nc8 Qa1 Bc6 Nd4 e2 Qc1 Rd3 Qa1 Qc1 Nc2 Ba4 Kf5 Kf7 Qb1 Be8 Qa1 Rh2 Rg6 Bf3 Kg5 Rg2+ Kh6 Be7 Kh7 Bg5 Kh8 Be3 Qb1 Qb2 Qa1 Qb5 Qb1 Qc6 Qd1 Ne7 c8R Bh5 Rd8 Nc8 Kh7 Nf3 Qa1 e1R Kh8 Rh1 Qf1 Ne1 Qg1 Rh4 Qf1 Rf4 Qh1 Qbc7 Rb8 Be2 Ra8 Rf5 Rb8 Rb1 Rb4 Qb8 Rba4 Rb6 Rb4 Ba2 Rf4 Bc4 Rd7+
1bB5/1P2bPq1/2K3n1/Q3p1k1/5R2/1rRNnrb1/R2BP1PQ/n1qR1n1b b - - 0 1 illegal: No proof kernel forced: bxLB
1NR1nKb1/5N2/1BP1QN2/2nPnpp1/1b3kq1/P4B2/Q4P1r/q1Nb1rr1 b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 d5 exd5 a5 b4 cxb4 a3 a4 Ra2 Nf6 Rb2 Ng8 Rb3 axb3 Ke2 Kd7 Kf3 Kd6 Kf4 b5 Kg5 Ke5 h4 f5 Kg6 b2 Kf7 g5 c4 b3 c5 b4 h6 Nc6 h7 Nf6 h5 Kf4 h6 e5 d6 e4 d4+ e3 d7 Rb8 Be2 Ne8 Nc3 b1R Ne4 b2 Nf6 b3 Bf3 Be7 Qe2 Ne5+ Ke6 Qa5 d5 Qa4 Bd2 Qd4 Ba5 Rf1 Bb6 b1Q Qa2 e2 Rh3 e1N Rh4+ Ng4 Kf7 b2 d8N Qa1 Nc6 b1B Rh3 Rb7 Nb8 Bc2 c6 Nd3 Rh2 Nc5 Ne2+ Ke5 Nc1 Bd1 Rh4 Kf4 Rh5 Nc7 Rh1 Ne5+ Kg7 Be6 Rh5 Rd8 h8N Bg8 h7 Rd6 Nf7 Ne8+ Kh6 Qc4 h8Q Rg1 Qg7 Rd8 Qg6 Qa4 Ba7 Rb1 Bb6 Qe4 Bg4 Qg2 Bf3 Qg4 Rh4 Nb7 Rh1 Bb4 Rh4 Nc5 Rh1 Nd6 Kg7 Ne8+ Kf8 Rd7 Rh8 Rc7 Nd8 Rh7 Qf7 Rh2 Qe6 Rb3 Nf7 Re3 Bg2 Ree1 Bf3 Ref1 Rh5 Nc7 Rh8 Bh7 Kg7 Ng6 Be4 Ne5 Rc8 Bg8 Bf3 Ne8+ Kf8
2R4n/2qn1nQ1/PB4Qb/nPNp1R2/1b5P/3pn2k/r1RP4/1brNR1K1 b - - 0 1 illegal: No proof kernel
Q3n2b/rBBp2NK/3P2r1/1bbp1QrP/3r3P/3RQr2/3P2qN/2Q1nk2 b - - 1 2 illegal: No proof kernel
2nn4/k2PPp1Q/1B4p1/B1nr2P1/P1Q1nR2/1Bq3qN/1bb1KN2/B1r4n b - - 0 1 legal: proof: b4 d5 a4 a5 g4 axb4 c4 h5 cxd5 e5 f4 Ne7 fxe5 Na6 g5 Ng8 Ra3 Nb8 Rg3 Bh3 Rg2 Bc8 Rg4 hxg4 e4 Kd7 h4 b5 d4 c5 e6+ Kc7 h5 Kb6 e7 g3 e8Q c4 e5 b3 e6 g2 d6 g6 d7 b2 d5 c3 d6 c2 h6 b4 h7 b3 Qe2 Ka7 Qb5 Ne7 Qe2 Qc7 d8B Nbc6 Qc4 Bg7 Bd2 c1Q+ Ke2 Qc3 Na3 b1N Bc1 b2 Bf4 Nd2 Kf2 b1N Rh4 Ne4+ Ke2 Nbd2 Nc2 Nc5 Nb4 Nde4 Nh3 Rg8 h8B g1N+ Kd1 Rb8 Nd3 Rb5 Ndf2 Ne2 d7 Bb7 Rg4 Nc8 e7 N2g3 Bd3 Ba8 Bc2 Nh1 Bb3 Bb7 Bd2 Q7g3 Bc7 Nd8 Rf4 Bd5 Be1 Be6 Ke2 Bf5 Bd2 Be5 Bf6 Rh8 Qg8 Rh4 Ba2 Rb1 Qh7 Rc1 Ng1 Rh2 Bb3 Rg2 Nh3 Rgg1 Bh8 Rgd1 Be1 Rd5 Bd2 Qa5 Bc3 Qb4 Ba1 Bb2 Bc3 Qa5 Bd2 Qac3 Be1 Ned6 Bd2 Bc2 Be1 Nde4 Bd2 Qg7 Bda5 Q7c3 Bcb6+
1b1N4/Nq1b3N/2PBP1Qb/br2Qqr1/Rn3pN1/1K1P4/p1n1bP2/3k3B b - - 0 1 illegal: No proof kernel
3b4/Qq1nq1P1/Nnr3n1/1NP5/b1nbRB1p/1NPp1R1P/2Qr4/3Nk2K b - - 0 1 legal: proof: f4 c5 d4 g5 dxc5 gxf4 a4 b5 axb5 e5 e3 e4 Be2 Qe7 Bh5 Qd8 Bf3 exf3 Kf2 Ke7 g4 Ke6 b4 Ke5 e4 h5 b6 f5 h3 a5 b5 d5 g5 d4 b7 a4 b6 d3 g6 Kd4 e5 h4 g7 a3 e6 a2 e7 Nd7 e8Q Rh6 b8N Ne7 b7 Ng6 Qd2 Be7 Kf1 f2 Kg2 f1N Qf7 f3+ Kf2 f4 Ba3 Ne3 Qc1 Nd5 Nd2 Kc3 Kf1 f2 Kg2 f1Q+ Kh2 f3 Nc6 f2 b8N N5b6 Nb3 Bf6 Na6 Qe7 Rb1 a1B Ncd4 Qfe1 Qd1 Q1e4 Bc1 Qb7 Bf4 Bb2 Ra1 Bg5 Ra4 Rb8 Ngf3 f1N+ Kg1 Nd2 Nf5 Bf6 Re4 Ndc4 Nf3d4 Bg5 Ne3 Ra8 Nb8 Ra2 Kh2 Bf6 Rf1 Ba1 Rf3 Bb2 Na5 Bg5 Qb1 Kd2 Nb5 Bd4 c3 Rb2 Qa2 Ke1+ Kh1 Rd2 Qb2 Nde5 Qc2 Bd7 Nb3 Bc6 Nd6 Ba4 Nb5 Ned7 Na6 Rh8 Qf6 Rc8 Qf8 Rc6 Qb8 Qf8 Qa8 Bd8 Qa7 Qe7 Nd1+
1R1R2KN/b3q1PB/R2q4/p3bqn1/Q2Pk2b/2rr3p/1B1P3P/nb2R2Q b - - 0 1 illegal: No possible last move
1BK5/1Q2bP2/N1P1RN2/r1p1p3/QbnPP2Q/2qq2n1/Rbb2k2/1Q1n3r b - - 0 1 illegal: No proof kernel
1kbrn1qn/pQ3Q2/4P3/RN2Kb1P/1b2p2B/bBr1PQN1/2Q2Pn1/2q5 b - - 0 1 illegal: No proof kernel
Q4qQ1/K1NP2rB/4pNn1/Bk1bq1rN/4N1n1/2bPP1qP/3p4/q2n2R1 b - - 0 1 illegal: No proof kernel
3Br3/2nnb1B1/2PpQ1kB/3Rp2r/5BN1/2PP1q1b/3QP1q1/2KR1nnq b - - 0 2 legal: proof: g4 f5 gxf5 h5 b4 c5 bxc5 a6 Na3 Nf6 Bh3 Ng8 Nb5 axb5 Bg4 hxg4 a4 Kf7 f4 e5 h4 g5 c6 g3 d3 g2 Kd2 b4 f6 b5 h5 g4 f5 b3 c3 b2 a5 b1Q a6 g3 h6 d6 h7 b4 a7 b3 Nf3 g1Q Ra5 g2 Rd5 b2 Nh2 Na6 Ng4 Rb8 a8Q Nc7 Qa2 Be7 Qc2 Qh2 Rd1 g1N Qab3 Qg2 Qa2 Kf8 f7 Kg7 f6+ Kg6 f8B Bd7 f7 Nf6 Bg7 Qf8 Bh6 Re8 Qcb3 Qa1 Kc2 b1N Bcf4 Be6 Kc1 Nd7 Qd2 Bf5 Ne3 Bh3 Ng4 Qg8 f8B Qf7 Bfg7 Qf5 Bfg5 Qff3 B7f6 Rhf8 Bfg7 Rf5 Bf4 Rh5 h8B Na3+ Qb1 Nc4 Bf6 Ne3 B8g7 Nf1 Bf6g5 Qa4 Qba2 Qae4 B5f6 Bf8 Bd8 Be7 Rd4 Qh1 Qg8 Qfg2 Rd5 Qef3 Qe6+
2N1q3/1p4B1/PR1K1n2/n1QN1b2/1P1p2q1/3P2Qr/1qB1kbP1/1Bq2Brb b - - 1 2 illegal: No possible last move
Qr6/q2nN3/Rp1Q2nn/5q1B/pbPr1P2/PP2n3/N2N1rb1/3NKRk1 b - - 0 2 illegal: No possible last move
1R3q1r/1N1n1b1r/B3b1pk/P1BpQ1B1/bK4P1/4B2P/1Q2rP2/2b2Rrn b - - 0 1 illegal: No possible last move, all moves rejected
1b1b1R2/1N1pn1nn/3Qb2K/r3q1QR/1P3P2/PNpP1b2/1B3k2/1Qn1Qr2 b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 gxh5 b5 Bc4 a4 Bb3 axb3 c4 bxc4 exf5 Rh6 Na3 Rh7 Nb1 Rh8 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Kg4 Ke5 h4 Ke4 f4 e5 h6 c5 Kh5 b2 a3 c3 h7 c4 f6 c2 f7 g4 Rh3 g3 Rh1 c3 Nh3 g2 Rh2 g1N Rg2 Bb7 Rh2 Qa5 Re2+ Kf3 d3 e4+ Kg6 e3 h5 Qe5 h6 Ra5 Rh2+ e2 Nf2 Na6 Rh5 Nc7 Ne4 Ne6 Qe1 Bd6 f8Q Bb8 Nd6 Nh3 Nd2+ Ke3 Qe7 b1B Qg5 Ba2 Bb2 c1N Nb3 Bf3 Nb7 Ng7 Rb1 Nf6 Ra1 Nd5 Rb1 Rg8 h8Q Re8 h7 Ne7+ Kh6 Rg8 Qeh4 e1B Qhg3 Re8 Qf8 Ke2 Qg1 Bh4 Qff6 Rg8 h8Q Re8 Qh1 Kf2 Qd6 Rg8 Qh7 Re8 Qe4 Rg8 Qgf5 Ng5 Qd1 Nh7 Qg5 Re8 Qh1 Ne2 Re1 Nc1 Nd2 Be6 Re3 Ne2 Qb1 Nc1 Nb3 Nc6 Qgg6 Bd8 Qg5 Ne7 Re1 Bd1 Qh1 Bf3 Re4 Rh8 Rc4 Re8 Rc8 Rg8 Na1 Bdc7 Rf8 Ne8 Qf6 Bd8 Nb3 Rg1 Qg5 Ng7 Qh3 Rh1 Qhf5 Rg1 Qe4 Rf1 Qe1+
1N5q/1n1PQqR1/2Q2Bbp/p1bqBPB1/Nr2b2P/1B2kb2/P1b2n2/2K5 b - - 0 1 illegal: No possible last move, all moves rejected
3q1R1K/pBp1b1RQ/k1P1QR2/1bb1r3/1r1pn1RP/3P3P/3Nn3/nr4B1 b - - 1 2 legal: proof: f4 b5 e4 h5 a4 e5 Na3 h4 Nc4 h3 axb5 exf4 gxh3 Rh5 h4 Rh8 Ne3 fxe3 Ke2 f5 Kd3 d5 Kd4 Kd7 Ke5 g5 b4 f4 c4 d4 h3 g4 c5 e2 d3 e1B b6 Kc6 b5+ Kb7 Bg2 g3 Nf3 Bd2 Rf1 Bc3 Be3 Be6 Nd2 f3 Bg1 f2 Qh5 Qe7 Qh7 Bc4+ Kf5 Nc6 Kg6 Rd8 e5 Bb4 e6 Re8 Rae1 Nf6 Re4 Qd6 e7 Qd8 Rg4 Ne4 Bh1 Na5 Bf3 Qd5 Bh1 Rb8 e8Q g2 Qe6 Be7 Kh6 Rhe8 Kg7 Bf8+ Kh8 Qd8 Qd6 Re5 Qe6 Nb3 Rg7 Qd7 Rg4 Na1 Rg7 Kc8 Rg4 Be7 b7+ Kd8 b6 Bb5 Rd1 f1R Rb1 Rc8 b8R Qd6 Rb2 Rb1 b7 Ba3 Ra8 Rb8 Rc2 Qd5 Rc1 Qd6 Rf1 Qd7 Rf6 Qd5 Be3 g1N Rg7 Ne2 Bg1 Rc8 b8R Rb4 Rb6 Rb8 Rf4 Qd7 Rfg4 Kc8 Qc4 Rb1 Rf6 Kb7+ Qcg8 Qd6 Bg2 Ka6 Bf3 Rb7 Qe6 Rb6 Raf8 Qd8 Bg2 Nf2 Ba8 Ne4 c6 Bac5 Nf3 Ba4 Nd2 R6b4 Re8 Bb5 Reg8 R4b2 Rgf8 Rb4 Bb7+
3rb2K/1Rp1p3/1b1nPrQ1/B2r3k/2N1RQpb/4P2n/1RPnq1P1/N3R3 b - - 2 3 legal: proof: f4 b5 a4 g5 axb5 d6 e3 Qd7 Be2 gxf4 Bg4 Qe6 d3 Qe4 dxe4 h5 Ra3 hxg4 Ra2 Na6 Ra1 Nb8 Kd2 a5 Kc3 f5 Kd4 Kf7 b4 Kg6 h4 a4 b6 a3 b7 d5 Ke5 d4 b5 a2 b6 d3 Qf3 d2 Qg3 d1Q Qf2 f3 Bb2 f4 Na3 Bh6 Ne2 Bg5 Re1 Rh5 Nc1 Na6 b8R Nh6 b7 Nf5 Nb3 Nc5 Nc4 Qe2 Bc3 Ne6 Ba5 Nd6 Rab1 a1B+ Rb2 Bd7 Qf1 Rh8 h5+ Kh6 Rd8 f2 b8R f3 Rb7 Nf4 Rf8 Nh3 Rf4 Bb5 Ke6 Bh4 e5 Rhd8 Re4 Kg5 h6 Be8 h7 Kh5 Ra7 Rd7 Rb7 Rad8 h8Q+ Kg6 Rbb1 Bd4 Rb2 Bb6 Qg8+ Kh6 Na1 Kh5 Qg1 f1R Qh2 f2 Qf4 Rh1 Qg7 f1N Qgf6 Nd2 Qg7 Nc8 Qg8 Rd5 Qg7 Bc6 Kf7 Rf1 e6 Be8+ Kg8 Nd6 Kh8 Rf2 Qfe5+ Rf5 Qf4 Rf6 Qg6+
3r3n/BQ1rn2k/2b2r2/3n1PBp/2R3q1/pB2NP1p/2PN2qP/b1BKQ3 b - - 0 1 legal: proof: d4 b5 b4 c5 e4 cxd4 a4 f5 exf5 Qa5 axb5 Qd8 Ra6 g5 Rh6 Nc6 Rh3 Nb8 Rh4 gxh4 g4 Kf7 b6 Kg7 b5 e5 b7 h5 b6 d5 g5 a5 f3 e4 g6 h3 Nc3 a4 Bg2 a3 Na4 d3 Nc5 d2+ Ke2 e3 Bb2+ d4 Qc1 d1N Ke1 e2 Ne4 Nc6 b8B Qg5 b7 Ra6 Ba7 Nce7 b8B Nc3 Bf4 d3 Bf1 Rf6 Nd2 Qg4 Bg5 Bb7 Qa1 Ba8 Bc1 Nh6 Qb1 Kg8 g7 Kh7 Qb7 Rg8 Nc4 Nf7 Ne3 Nh8 Kd2 e1R Ne2 Ncd5 Nd4 Re2+ Kd1 d2 Nb3 Rf2 Rg1 Rg2 Qc7 Bc6 Bc4 Re2 Qb7 Qg2 Ng4 Ree6 Re1 Rd6 Re4 Rd7 Ne3 Qg4 Nc5 Qg2 Bb3 Qg4 Rc4 Qg2 Ne4 Qg4 Ke2 d1Q+ Kf2 Qh1 Ke2 Qhg2+ Kd1 Nc8 Nd2 Be7 Ne4 Rgd8 Nd2 Bb4 Bh4 Bc3 g8Q+ Kh6 Qf8+ Kh7 Qfb4 Nce7 Bg5 Bb2 Qc3 Ba1 Qe5 Rdf8 Qg3 Rfd8 Qe1
2rBQ2B/qP3R1K/1P1Q3p/B1Nn3N/b3r1r1/1nb1p1p1/B1P1P3/1k1qb3 b - - 0 1 illegal: No possible last move
2n1RQ2/BbBKPk2/pNp5/qqp2B2/1bP2n2/Nr2B3/PQ3r1P/4q2n b - - 0 2 legal: proof: e4 e5 d4 f5 exf5 h5 dxe5 b6 g4 hxg4 b4 Bd6 Nd2 Qf6 Rb1 Qh4 Rb3 Qd8 Rc3 Bf8 Rc5 bxc5 Ke2 d5 Ke3 g5 c4 d4+ Ke4 g3 f4 a6 f6 c6 f5 g4 b5 g2 e6 g3 Ke5 d3 b6 Bg7 b7 Rh3 Ne2 g1Q Nf4 g2 Nb1 d2 Qe2 d1N Nd5 Nf2 Nb6 Nd7+ Kd6 Ne7 b8B Rb3 Be3 Ng6 Qb2 Nf4 Bd3 Bb7 Ba7 Qe1 Na3 g1Q f7+ Kf8 Be4 Bc3 Bb1 Kg7 f8B+ Kg8 f6 Bb4 Be7 Qg6 Rf1 Nh1 Bf5 Qg1 Bf8 Qb1 e7 Kf7 Bh6 Rb8 Rf2 Qge1 Rg2 Ra8 Rg8 Rb8 Re8 Rc8 Nd5 Qa5 Nb6 Ra8 Bg5 Rc8 Bh4 Ra8 Bg3 Rb8 Na8 Nb6 Kc7 Nc8+ Kd7 Nd3 Bc7 Nf4 Qa1 Rb2 Nb6 Rf2 Be6+ Kg6 f7 Qb3 f8Q Qba4 Qfh8 Q4b5 Bf5+ Kf7 Qab2 Ba8 Qb1 Qba4 Nd5 Bc3 Rg8 Rb3 Nb6 Bb7 Re8 Bb4 Qbb2 Q4b5 Qf8#
2R1b1K1/n2P1p1p/Pk2rb2/b1qrn1Q1/1RBp4/BP3P1N/1B5B/Q1n1q3 b - - 0 1 illegal: No proof kernel
1Q3Rq1/1pRQrN2/3Q4/3r1Pp1/2nqQ1r1/bPP1P3/Kn1p1kb1/3qN2B b - - 0 1 illegal: No proof kernel
1q1rNr2/3bKp2/2r1pp2/b4P1R/1B2nQ2/1N5N/rQPPnPrR/3N3k b - - 0 1 illegal: No possible last move
8/1K3bbb/3Q2P1/qkBr1Q2/1Qb1PR1p/1npQn1Rp/1NPNPbr1/8 b - - 0 1 illegal: No proof kernel
B7/qP2r1Pp/B1rp2nP/br2k1n1/3P3B/p1RbK2N/3n4/1QRBQ2n b - - 1 2 illegal: No possible last move
Br1n2Qb/3rn1BQ/1pN2nq1/1b5P/1PBb1PB1/p3P3/1kN1p1RK/3b4 b - - 0 1 illegal: No proof kernel
Rr2q2B/Kb1prp2/n1N3N1/2k2r1P/r1Pp1P2/Q1b3n1/1P1Q4/bBNN4 b - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 c5 a4 cxd4 axb5 e5 Ra3 e4 Rd3 exd3 Kd2 Ke7 e4 Kd6 h4 a5 h6 g5 h7 a4 b6 g4 h5 a3 e5+ Kd5 e6 g3 e7 a2 e8Q g2 b7 Bb4+ Nc3+ Kd6 Qe7+ Kc6 Ne2 Ba5 Qa3 Na6 b8N+ Kb6 Nc6 g1R Qe1 Nb4 Nd1 Ne7 c4 Re8 h8N Ra7 Ng6 Rg5 Bh3 Rg8 Bf5 Kc5 Rh3 a1B Re3 Nd5 Re8 Bb7 f3 Qe7 Ra8 Nf4 Ne3 Ng2 Kd1 d2 Bb1 Rf5 Qf2 Nf4 Qg2 Kb6 Qh2 Nbd5 Kc2 d1R Kb3 Rb8 Ka4 Re1 Nd1 Nc7 Be3 Qe4 Nc1 Qe8 Qd2 Ne2 Bf4 Ng3 Be5 Re4 Bh8 Re7 f4 Ra6 Qb3+ Kc5 Qa2 Rb6 Qb3 Bc3 Qa3+ Rb4+ Ka5 Na6 Qa4 Rf6 Qb3 Kd6 Qa2 Ra4+ Kb6 Rf5 Ka7 Kc5 Qa3+
1B3RK1/1n4b1/4pb1P/1b1pQNp1/1kb3Qr/2P3B1/1nRPQ1P1/rQqr4 b - - 1 2 illegal: No possible last move
r3bn2/1npB1P1P/1p4B1/rb1RB1N1/1bq2B1P/2kb3Q/2P1p3/1QKn1R2 b - - 0 1 illegal: No proof kernel
2K4n/r4Q2/1Pk1nRQ1/3qpN1r/1N1RPP1b/P4npB/3Rp1b1/n5Rq b - - 0 1 illegal: No proof kernel
4r3/n1K3Pb/R2BrPP1/N4q2/1b1NQ3/b1p1Q1n1/2P1p1pk/R1Qq1Q1b b - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 b5 axb5 g5 g4 f5 Be2 Bh6 hxg5 Qd4 g6 Bf8 g5 Qd8 Bg4 fxg4 Ke2 Kd7 Ke3 Ke6 Kf4 h5 b4 c5 d4 a5 b6 c4 g7 h4 f3 g3 b7 a4 b5 e3 b6 e2 Qe1 a3 Ke4 h3 f4 h2 Qf1 e1B Bb2 a2 Nf3 g2 Ba3 Bb4 Nbd2 c3 Nc4 Qd7 Na5 Nc6 b8Q Ra6 b7 Nh6 Qa8 Nf5 b8Q Na7 Rg1 Rd6 Qb6 h1B Qc1 Rc6 d5+ Kd6 Qab7 e5 Nd4 Be7 Q7a6 Re8 Qaf1 Ba6 Qb7 Bc4 g6 Ng3+ Kf3 Qc8 f5 e4+ Kf4 e3 f6 e2 Qb6 Kd7 d6 Bg8 Ke5 Bh7 Qc5 Rb6 Qd5 Rc6 Qe4 Ra6 Rb1 a1Q Rb2 Rc6 Ra2 Rb6 Qce3 Qd1 Ra1 Kd8 d7 Kc7 Kd5 Re6 d8Q+ Kb8 Qd7 Bf8 Qb5+ Kc7 Bc1 Ba3 Qb1 Bfd6 Bd2 Bdb4 Qc1 Qd7+ Kc4 Kd6 Ra2 Nc6 Kb5 Na7+ Kb6 Qc8 Q3d3 Qc5+ Kb7 Qf5 Bf4+ Kc5 Qee3 Kd5 Bb8 Qe4 Kc7 Ke5 Nf3+ Kf5 Nd4+ Kg4 Ra1 Qf3 Qde4+ Kh3 Ra2 Bg8 Qb1 Bb2 Nb7 Bd6+ Kd7 Qh5 Ra6 Bb4 Qff3 Kh2 Na5 Qf5 Bd6 B2a3 Kc7 Qd2 Qb2 Qd3 Ra1 Qd1 Qf1 Bh7 Qbc1
KN1b4/BpR1b2Q/1qQ3RQ/nq6/PP1k3p/p1n2NP1/4rb1P/Q2r2b1 b - - 0 2 illegal: No proof kernel
b1Q4K/3pQ1Q1/2N2PQ1/1nb4p/1p3n1r/1rB1P1rP/1P1rN1k1/qR1q2R1 b - - 1 2 legal: proof: d4 b5 a4 f5 g4 e5 dxe5 fxg4 Bg2 c6 Be4 Qf6 Bd3 Qe7 axb5 Qf6 b6 Qd8 Bb5 cxb5 Kd2 Ke7 Ke3 Ke6 Kf4 a5 c4 g5+ Ke4 g3 f4 g4 c5 a4 h3 b4 b7 a3 e3 g2 c6 g3 c7 a2 Qc2 Na6 b8Q Nf6+ Kd4 Nh5 Qb5 Qh4 Nd2 Bc5+ Ke4 Qg4 Ne2 g1R Nf3 g2 Rb1 a1Q Bd2 Rd1 Bc3 Rd2 Rhg1 Bb7+ Qc6+ Bd6 c8Q Nc7 Qf8 Ra3 Qg7 Ba8 Qd3 h6 Qa6 Rb3 Qc8 Rc2 Kd4 Kf5 e6 Nb5+ Kd5 Bc5 e7 Rh7 e8Q Rh8 Ne5 Rd2+ Kc4 Rh7 Qee7 Rh8 Qcf6+ Ke4 f5 Nf4 Nc6+ Kf3 Qfg6 Kf2 Ng3 Qd1 Ne2 Nd3 Kd5 Nf4+ Ke5 Kf3 Rh1 g1R Kf6 Rg3 Kf7 Kg2 f6 Rh7 Kg8 h5 Q7h6 Rg7+ Kh8 Rg4 Qgh7 R7g6 Q6g7 Rh4 Qhh6 Rgg4 Qhg6 Rg3 Rg1+
2bQN2n/4q1r1/3P1R2/1p1Pr1p1/2Q1Q3/k1rpb1Q1/nP3NPR/1qrB3K b - - 0 2 illegal: Other
2Rr1n2/1P1Q2qq/2r3pp/3rP2r/1N1N3r/k2n1QB1/B1Q2pPP/Kb3Q2 b - - 0 1 legal: proof: f4 c5 b4 b5 e4 e5 a4 c4 axb5 Qa5 d4 exd4 Ra3 Qa6 Rd3 cxd3 e5 Nc6 Ba3 Bd6 Bc1 Qa5 e6 Be5 fxe5 Nb8 Kd2 Qb6 Ke1 Qd8 Kd2 d5 c4 a5 c5 f5 c6 a4 b6 a3 b7 g6 b5 f4 b6 a2 e7 a1Q c7 Kd7 Qc2 f3 Bb2 f2 Kc1 d2+ Kd1 Nc6 b8Q Ra6 Qa8 Nb4 Qa7 Qf8 Qc4 Nd3 Kc2 d1R Be2 Nf6 Nd2 Qg7 Qb4 Kc6 e8Q+ Nd7 Qc3+ Kb5 Nc4 Ka4 Na5 Qa3 b7 Qae7 Ba3 Rc6 Bc1 Nf8 Kb1 Bf5 c8Q Re1 Bf3 Re4 Ne2 Rh4 Bf4 Rh5 Qc4+ Ka3 Rc1 h6 Qc7 Qh7 Qca6 Qeg7 Ka1 Nb2 Qd6+ Rc5 Bg4 d3 Bf3 d2 Ng1 d1R Qc8 d4 Bd5 d3 Qdd7 d2 Nf3 Bb1 Qf1 Ne6 Ba2 Rd8 Bg3 Nf8 Qaa6 Re1 Qae2 d1R Nc6 Rdd5 Nfd4 Nd3 Qf3 Re4 Nb4 Reh4 Qb8 Ra5 Rc8 Ra6 Qbc7 Rb6 Qc4 Rc6 Qc2
n1q1N3/5PpR/r2pk3/3P2P1/B2Qpr1r/1B1r2N1/q3Pb2/1Bqn1KQB b - - 1 3 illegal: No possible last move, all moves rejected
2B2Qb1/Np1r1pp1/1Pq1Pqk1/3B1P2/q5nr/Q1r4P/qB1N1B1R/4K2n b - - 0 1 legal: proof: b4 d5 a4 a5 g4 e5 d4 h5 dxe5 hxg4 c3 d4 b5 d3 Ra3 Bd6 Rb3 Bc5 Rb4 Bd4 cxd4 axb4 f4 c5 e4 g3 b6 b3 d5 b2 a5 d2+ Ke2 c4 h3 g2 d6 c3 e6 c2 d7+ Ke7 e5 Rh4 a6 Nc6 a7 Nb4 Na3 b1Q Rh2 Nf6 Nf3 g1R Nb5 Rg3 Bg2 Qa2 Bb2 c1Q Qb3 Qc6 Qa3 d1Q+ Kf2 Qdb3 Nd2 Qa4 Ke1 Ng4 Bd5 Rb8 a8Q Rc3 Qa7 Ra8 Qb8 Ra5 Na7 Rac5 Kf1 Nd3 Qa8 Ndf2 Ke1 Nh1 Qb8 Kf8 e7+ Kg8 e8B Qdf6 d8B Kh7 Bd7 Kg6 Qd6 Rd3 Qf8 Rcc3 Be7 Rd4 Bc5 Rdd3 Bf2 Rd4 Be8 Bf5 Bd7 Bc2 Bc8 Rdd3 Bg2 Rd7 e6 Kh5 Bf3 Bh7 Be4 Bg8 Bd5 Kg6 f5+
Bk5r/q1R2qp1/b1p1r2B/3Rqn1P/Q2P3N/r1Pp1Kb1/3P1R2/1r2Q2R b - - 0 1 legal: proof: g4 d5 a4 h5 e3 hxg4 Be2 b5 axb5 f5 Ra6 d4 Na3 d3 Bf1 Nc6 Nc4 Nd4 exd4 g3 Ra1 Bb7 Ne3 Bc8 Ng4 fxg4 b4 Kd7 f4 e5 h4 a5 h5 a4 b6 e4 f5 a3 b7 a2 b8R e3 f6 e2 b5 g2 Kf2 e1R b6 g3+ Kf3 Ra7 f7 Qg5 b7 Ne7 c3 Qe5 Ba3 Nf5 Bd6 Ra3 Qa4+ Kd8 Rb1 a1Q Rb5 Be7 Be2 Bh4 f8R+ Kd7 Ra8 Kc6 b8Q Ba6 Qc8 Qa2 Be7 Qf7 Rd5+ Kb6 Qcd7 Kb7 Bg5 Rb1 Qe6 c6 Rac8 Re1 Bh6 Ka7 Bd1 Re4 Bb3 Kb7 Bc4 Re2 Nh3 g1R Nf4 g2 Ng6 Bg3 Nh4 Rb1 Bb5 g1Q Rc7+ Kb6 Qe8 Qe1 Bc4 Qee7 Bb5 Re6 Bc4 Qe5 Bb5 Bc8 Ba6 Qc5 Bb7 Qa5 Qb5+ Ka7 Qa4 Kb8 Ba8 Qa7 Qe7 Raa1 Qea3 Ra2 Qc1 Ra3 Qcd1 Qg8 Rf6 Ba6 Qe1 Qf7 Kg4 Ne7 Rf2 Nf5 Kf3
2r1N1r1/k1NP3P/qpKBbpb1/N2Q1P1Q/8/p1b3qB/1P1RNnr1/2r5 b - - 0 1 legal: proof: d4 d5 c4 e5 g4 h5 a4 hxg4 a5 b6 a6 Nc6 Ra4 Be7 cxd5 Na5 d6 Nb7 axb7 Bf8 d5 Nh6 Rb4 Ng8 Rd4 exd4 Kd2 Kd7 Kd3 g5 Ke4 a5 b8Q c5 h4 d3 f4 a4 e3 a3 h5 f6 f5 d2 h6 c4 h7 c3 Qc2 d1B Qh2 g3 Qg2 g4 Ne2 c2 Nbc3 Nh6 Nb5 Rg8 Rh2 Be7 Qh3 g2 Qh5 g1Q Nc7 g3 Bh3 g2 Qb7 Ng4 Bd2 c1R Bb4 Qf8 Qc6+ Kd8 d7 Nf2+ Kd4 Qf1 e4 g1R e5 R1g2 e6 Qg7 Bd6 Qg3 Qc5 Bc2 Kc4 Bd1+ Kb5 Rb8 Kc6 Bb3 Nc3 Qa6 Ne2 Ra8 Rh1 Bf8 Rd1 Bh6 Rd4 Bd2 Qc4 Bc3 Rd2 Ba2 Be5 Ke7 d8N Rb8 Nb7 Bb3 Na5 Kd8 d6 Bd7+ Kd5 Kc8 e7 Be8 Bf4 Bg6 e8N Ra8 d7+ Kb8 Kd6 Ka7 Qd5 Rc8 Kc6 Bc4 Bd6 Ba2 Qd4 Be6 Qd5
1Nb3B1/K1bR1NpP/3B1q1n/1B4P1/2rQpPb1/p3B2Q/2p1n1P1/r1kn4 b - - 0 1 illegal: No proof kernel
4r3/Bn6/QbB1P3/2RQpn1K/BB4pb/1qpP1n2/1p2PNPb/2R1r2k b - - 1 2 illegal: No proof kernel forced: bxLB
2rN1q2/Qpk1pP1b/N1b5/2KRn3/QN1rPp2/3p2nb/3PRP2/N1B3q1 b - - 2 3 legal: proof: g4 a5 b4 axb4 h4 c5 g5 g6 Bh3 f6 Bg2 Bg7 h5 f5 Bd5 Bf6 Bb3 c4 hxg6 cxb3 gxf6 Ra5 Nf3 Ra3 Ng1 Ra8 c4 d5 e4 Kd7 Ke2 h5 Kd3 f4 Kd4 b2 a4 b3 g7 h4 a5 h3 c5 h2 a6 Ra7 f7 Rh4 c6+ Kc7 Nh3 Rh5 Na3 b1Q Ng5 b2 Qa4 Bf5 Kc5 d4 Re1 h1B Nc2 d3 Re2 Nf6 g8N Ra8 a7 Qf8 Ra2 Bf3 Na1 Bg2 Ra3 Bgh3 Ne6+ Kc8 c7 Nc6 Nd8 Ne5 Rb3 Bh7 Rb5 Rf5 Ra5 Nh5 Nf6 Ng3 Nd5 Rf6 Nb4 Rd6 Rb5 Rd4 Ra5 Rb8 Rb5 Kd7 c8N Kc7 Nb6 Ra8 Nd7 Rc8 Nb3 Qa1 a8Q b1B Nb8 Ba2 Q8a7 Qb1 Na1 Bd5 Ra5 Bc6 Ra6 Be8 Rd6 Bed7 Rd5 Bc6 Bb2 Qd1 Bc1 Qg1 N8a6#
1Bk4r/1q4Q1/2PQ1nrp/2p2Q2/KpNR2p1/2P5/bq1PB1P1/bnN1Qb2 b - - 0 2 illegal: No proof kernel
8/2R1p1p1/2pp1qrr/P2k4/NP1PB1Q1/2QNP1qq/2b3n1/R1Rn1bKR b - - 1 2 illegal: No proof kernel forced: wxDB
3Q2nR/1Nppb1k1/q7/bqPp1K2/2B1R1Q1/N1PQ1PQp/r4n1P/2q3r1 b - - 1 2 illegal: No possible last move, all moves rejected
2rNB3/pPr2QQ1/1n1rpb1q/2pp2b1/1nN1P3/r3R3/P2Q2P1/Q1KR3k b - - 1 2 illegal: No possible last move
B3QK2/2p2BP1/6pr/1pP1Nnr1/qPpr1QPk/qb1B3R/7n/B4qR1 b - - 2 3 legal: proof: f4 a5 c4 e5 h4 exf4 h5 d5 c5 g6 h6 a4 Qxa4+ Nd7 Qa7 Nb8 Na3 Bg7 Nc4 dxc4 hxg7 Qe7 Qa5 Qd6 Qa7 Qd8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 a4 b5 e4 f5 b4 h4 d4 h3 g4 h2 a5 Nd7+ Ke6 Ne7 Kf7 Rh5 d5 Kh4 e5 f3 a6 f2 e6 f4 d6 f3 Bf4 Nf5 e7 Rg5 e8B Ne5+ Kf8 Be6 Bd3 f1Q d7 f2 Qb6 Qd1 a7 f1Q Bd2 Qa4 Bc3 Nf3 Qd6 Bd5 Bd4 Be4 Qf4 Qc8 d8Q Qca6 Qd7 Rd8 a8B Qa3 Bb2 Q6a4 Qc8 Rd4 Bf7 Ne7 Qe8 Nf5 Be2 Bc2 Bd3 Bb3 Rd1 Qh3 Ba1 Qg2 Ne2 Qf1 Nc1 Qe2 Rhg1 h1R Rg3 Nh2 Rdg1 Qc2 Be2 Qe4 Nd3 Qf3 Ne5 Qf1 Bd3 Nf3 R3g2 Kh3 Re2 Rh2 Qc1 Rh1 Re3 Rh2 Rh1 Kg3 Qd2 Rh6 Rg1+ Kh4 Qc1 Nh2 Rf3 Nd6 Qf4 Nf5 Rh3+
7b/1b1Pnq1p/1N1KB1r1/1Np1RbP1/4Q3/2Pp4/1nN1qQpP/k2q1NR1 b - - 0 1 illegal: No proof kernel
2R1q1Rn/1pK1Bp1Q/4kPb1/1q1R4/1rpQNP2/1n3p2/1P1PRq1r/2q4N b - - 0 1 illegal: No proof kernel forced: bxDB
1Qq5/pQ2n1Bb/pq1nkpNp/2rpb3/4BQ1P/P5R1/K2P2QP/4N1q1 b - - 0 3 legal: proof: b4 e5 f4 c5 bxc5 Nc6 g3 Rb8 a3 Bd6 Ra2 Be7 Rb2 Bf8 Rb6 exf4 Ra6 bxa6 Bh3 Rb3 Bg2 Re3 Bf1 Re5 Bg2 Rh5 Bf1 Rh4 gxh4 Qb6 Bh3 Qc7 Bf1 Qd8 e4 Ke7 c4 g5 e5 d5 e6 g4 Qf3 h6 Kd1 g3 Kc2 g2 Kb2 Nf6 Nc3 Qa5 Ka2 Bd7 Bb2 Be8 Nce2 Nb8 c6 Bd7 c5 Qd8 c7 Be8 c8Q Ne4 c6 Nd6 c7 Bg7 Qb7 Be5 c8Q+ Qd7 Ba1 Nc6 Qcc7 Rg8 Qe4 f3 Nf4 f2 Nf3 g1Q Bd3 f1Q Ne1 Qb6 Qg2 Qfg1 Be4 Kf6 e7 Qc8 Ng6 Ke6 Bb2 Bd7 e8Q+ Ne7 Qcb8 Ba4 Bc3 Bc2 Qa4 Rd8 Qc4 Rd7 Qcf1 Rc7 Qf4 Rc5 Ba1 Bh8 Bg7 Bd3 Bf8 Be5 Bg7 f6 Qe2 Qg2 Rg1 Qf1 Rg3 Qg1 Bf3 Be4 Qg2 Bc2 Nh8 Bg6 Be4 Bh7 Ng6
nr5B/2R2p2/1bp1Nbp1/2R1QR2/bPp1K3/p4Pbr/1RPNQ2P/4kq2 b - - 0 1 legal: proof: e4 d5 exd5 b5 d4 h5 g4 hxg4 a4 Nc6 Bc4 bxc4 d6 Rh5 d5 Nd4 Kd2 Nb5 axb5 Rh3 Ke1 Rh8 Ke2 Kd7 Ke3 e5 b4 a5 b6 g6 f3 a4 b7 e4 b8R g3 Ra3 g2 Qe2 Ne7 Qd1 Rh3 Bb2 Bg7 Qd3 Bf6 Rb7 Rb8 Kf4 e3 Ne2 g1B Nd4 e2 Nd2 e1B Qe2 Bg3+ Ke4 B1f2 Ra2 a3 Ne6 Bb6 Rd1 Qh8 Ra7 Ba6 Be5 Bb5 Rb2 Nc8 Ra5 Ba4 Rc5 c6 Bc3 Ke8 d7+ Ke7 d8R Qh7 Re8+ Kd6 Re7 Qh6 Rc7 Qg5 Nb1 Qc1 Rd3 Qf1 Nd2 Be7 Bh8 Bf6 Ke3 Ke5 Rd4 Ba5 Rf4 Nb6 Rf5+ Kd6 Ke4 Na8 Ra7 Bb6 Nc7 Ke7 d6+ Kd7 Nd5+ Ke6 d7 Kd6 d8Q+ Ke6 Qg8 Kd6 Qg7 Ke6 Rc7 Kd6 Rf4 Ke6 Ke3 Ke5 Nb3 Rh4 Rg4 Rh3 Re4+ Kf5 Nd2 Be7 Rf4+ Kg5 Qc3 Bf6 Ke4 Rh5 Rf5+ Kh4 Bg7 Kh3 Bh8 Rh7 Qee3 Kg2 Qe5 Rh3 Qd3 Kf2 Nf4 Ke1 Ne6 Re8 Rh5 Rf8 Rf5 Rb8 Qe2+
2nq1rn1/pp2kp2/5q2/Q4BRP/2b1bqB1/PnBN1B2/1P1Q1P2/r1b2RK1 b - - 0 1 legal: proof: g4 h5 gxh5 c5 d4 cxd4 Nd2 e5 Ndf3 d3 Nd4 exd4 c4 d5 e4 g5 h4 d2+ Ke2 d3+ Kf3 d4 Kg2 g4 h6 g3 e5 Bf5 h7 Nc6 c5 Qf6 a3 Nce7 c6 Bh6 e6 Nc8 c7 Ke7 Ne2 Be4+ Kg1 g2 Nf4 Rb8 Qe1 d1B Qd2 Bb3 Be2 Bc4 Bg4 Bg5 Qa5 d2 Nd3 d1N Bd2 Nc3 Rc1 Nb1 Bc3 Nd2 Rf1 Nb3 h5 Bc1 Rh3 Qf4 Rg3 Ra8 Ne1 d3 Bf3 d2 Nd3 d1Q Rg5 Qf6 Bg4 Qdf3 Bf5 Qf4 Bg4 Nd6 c8B Rb8 Bd7 Re8 Bc6 Nc8 Bd5 Kd6 e7 Rf8 e8B Ke7 Bec6 Rd8 Bde6 Rd6 Ne1 Rd1 Bgf5 Be3 Bed7 Ra1 Nd3 Bc1 Bd5 Nh6 Bg4 Rf8 h8Q Ng8 Qh6 Qb6 Bf3 Qd8 B5e6 Qf6 Beg4 Qf4 Rc5 Qf6 Qd2 Qf4 Rg5 Qf6 Kh2 g1Q+ Kh3 Qh1+ Kg3 Qh4+ Kg2 Qf4 Kg1 Qf6 Bdf5 Qg3+ Bg2 Qf4 B2f3
4k2n/p2q1N2/Qrb1p1Q1/2pN4/N1P4r/brB1KpqB/PRq1PP2/2N4n b - - 1 4 legal: proof: h4 g5 b4 gxh4 b5 c6 Na3 c5 Rb1 Bg7 Rb3 Bf8 Rf3 Qb6 Rf6 Qd8 Rc6 dxc6 bxc6 Bf5 Nb5 Bh3 Na3 Bc8 d4 f5 Kd2 b5 c4 h5 g4 h3 g5 e6 c7 h2 g6 b4 d5 b3 d6 h4 g7 h3 Nb5 b2 Na3 b1R Nc2 f4 Bg2 Nf6 g8Q Rb3 Ba3 Qd7 Nf3 Rh4 Qb1 Nh5 Ne3 Ng3 Qe4 Bb7 c8N Nc6 Bb4 Nd8 Qg7 Nf7 Rb1 h1Q Qgg6 h2 Ne1 f3 Qc6 Bg7 Nd3 Qg1 Rb2 h1Q Bc3 Rb8 Qa6 Bc6 Nc1 R8b6 Nd5 Qhh2 Kd3 Qd1+ Ke3 Nh1 Bf1 Qg3 Bh3 Rb7 Ncb6 Qc2 Na4 R3b6 Bd2 Bc3 Be1 Bb4 Bc3 Ba3 Qg7 Nh8 Qg6+ Qf7 d7+ Kf8 d8N Ke8 Qg4 Qd7 Nf7 Rb3 Qh5 R7b6 Qg6
1K1kb2N/2nbR1p1/1pp1Q1PR/1PPn2N1/2r1q1Bb/3N1p2/1pNr2QP/2n5 b - - 0 1 illegal: No proof kernel
n6n/p1R1q2r/2Prpppr/K2bNPNB/2p3Bb/2P2QB1/Pk3pQ1/B7 b - - 0 1 illegal: No possible last move
4nNB1/1p2prp1/2pqNp2/2b2q2/2P2PPp/1kNR2QR/2QKPn2/rN3b2 b - - 2 4 illegal: No proof kernel forced: wxDB
5r2/1n1Rr1qP/b1n1R1B1/2Pb1B2/PkbB4/1p2KNn1/1P3B2/b2N2bB b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 c5 d4 Qe7 dxc5 Qd8 gxh5 a5 Qd2 Qc7 Qb4 Qd8 a4 axb4 Ra3 bxa3 Kf2 Ke7 h4 g5 c4 f5 e4 d5 e6 b5 h6 g4 h7 b4 h5 b3 h6 a2 c6 Kd6 c7 Kc5 e7 a1B e8B f4 e5 f3 e6 g3+ Ke3 d4+ Kf4 f2 e7 d3 Bb5 g2 e8R d2 Rh3 d1B Na3 Qe7 Nb1 Qg7 Be3+ Kb4 Rh4 Ba6 c8B Ra7 Bd3 f1B Bg6 Ne7 Nc3 Nd7 Nf3 g1N Bc6 Nc5 Bf2 Ne2+ Ke3 Ng3 Rd4 Nb7 Rd7 Bg2 Bce4 Be2 Nd1 Nc6 Re6 Rg8 h8B Bc5+ Kf4 Bd4 c5 Bec4 h7 Rf8+ Bef5 Nd6 Bb7 Bh1 Ba8 Nb7 Ne5 Bhd5 Nf3 Ne4 Bh4 Bg1 Bf2 Ng3 Ke3 Qg8 Bd4 Qg7 Rd8 Nba5 Rdd6 Re7 Rd7 Nb7 Re5 Nb8 Bh3 Be4 Nh4 Na5 Bhf5 Bg2 Bf3 Nb7 Re6 Nc6 Bd5 Bgf1 Bde4 Bd5 Bh1 Bfc4 Nf3
1N1b1B2/bK4p1/1nPPn1b1/N7/k2n1N1P/Pb2N1n1/2Rr2r1/BR2q1N1 b - - 0 1 legal: proof: e4 d5 b4 a5 c4 h5 g4 f5 exf5 Nc6 gxh5 Nb8 Qa4+ c6 Qb5 cxb5 bxa5 b4 c5 Qd7 Be2 Qd8 Bc4 dxc4 Ke2 Kd7 Ke3 Kc6 Ke4 Kb5 d4 e5 h4 c3 f4 c2 f6 b3 a6 b2 f7 Qa5 Kd5 e4 h6 e3 h7 e2 f5 e1B c6 Bc5 f8N Ne7+ Ke4 Nd5 a7 Nf4 d5 Be6 f6 Ka4 f7 b5 Bd2 c1N Bc3 b4 Nd2 b1N Nc4 b3 Rh2 b2 Ke5 Nd2 Nd7 b1B f8B Ncb3 Ne3 Nf1 Rc2 Nd4 a3 Ng3 Bb2 Bb6 Kd6 Bd8 Bc3 Bf2 Bb2 Rg8 h8N Qe1 Ng6 Bf7 Bc3 Nfe6 Nf4 Ba2 Rb1 Bg6 Ba1 Bb3 Ne5 Rh8 N5c4 Nd7 Na5 Rb8 a8N Nb6 Nc7 Rh5 Na6 Rg5 Rd1 Rb7 Nb8 Rf7 Rdc1 Rff5 Rb1 Re5 Nf1 Re2 Ne3 Rd2 Nf5 Na8 Kd7 Rg4 Kc8 Nb6+ Kb7 Nge2 d6 Rg2 Nf3 Ng3 Ng1 Nb5 Rc3 Na8 Nd3 Ba7 Nf4 Nbd4 Ne3 Nb6 Rc2
2k1n3/1b2P3/qn2r1NP/p4r2/2N2BpP/1BRqR1RR/1bP1Rn2/4Kb2 b - - 0 1 legal: proof: d4 c5 a4 b5 axb5 e5 dxe5 h5 g4 c4 gxh5 c3 b3 Rh7 f4 Rh8 Qd2 cxd2+ Kf2 d1Q Bb2 Qd2 Ba3 Qxf4+ Ke1 Qh6 Kf2 Qc1 h4 d5 e4 Kd7 h6 f5 b6 a5 b7 g5 e6+ Kc7 e7 g4 e8R d4 b4 f4 e5 f3 e6 d3 b5 d2 b6+ Kc6 Rh3 d1N+ Ke1 Qd6 Nd2 Ra6 Nc4 Nf6 Ne2 Bg7 Nf4 Rf8 Ng6 Nbd7 b8R Qd3 b7 Nb6 Bd6 Qb2 e7 Kd7 Bf4 Nf2 Ra3 Qb5 Rc3 Rf7 Rf8 Ne8 Be2 Rf5 Rf6 Nh1 Re6 Nf2 Re3 Bh8 Ra8 Bf6 b8R Bb7 Rc8 Be5 Rc5 Bd4 Rce5 Kc7 Ra3 Bb2 Rd8 Qc6 Rc3 Qf6 Rd4 Kc8 Rde4 Na4 Rb5 Re6 Rbb3 Nb6 Bf1 Qe5 Re2 Qb5 R4e3 Qa6 Rd2 Qd6 Bd3 Qd7 Rde2 Qd4 Be4 Qd3 Bd5 Rfe5 Bc6 Qd5 Rcd3 Nd1 Re4 Rf5 Ba4 Qd4 Rbc3 f2+ Kd2 f1B Bb3 Nf2 Ke1 Qd5 Rdg3 Qd3 R4e3
b1N2Nb1/npNk1bP1/3B1Rr1/4p2N/4r1RP/2K1P2r/1B1P1rn1/1N2b3 b - - 0 1 illegal: Other
2R1NB2/2P1Bbn1/Nq1p1n2/1nPk2N1/2R2r2/1N1PpN1P/1q1b1p1K/1r6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 b4 c5 bxc5 Ba6 a4 Bb7 axb5 Bc8 e4 Qa5 f5 Qa2 Qf3 Na6 Qf4 exf4 e5 Nb8 e6 Qa5 e7 Qc7 Bc4 Qd8 Be6 fxe6 Ra6 Kf7 Ra3 Kf6 Ra1 Kf7 Kf1 a5 Kg2 g5 e8N f3+ Kh3 d6 c4 e5 d3 e4 h6 a4 h7 f2 b6 g4+ Kg2 a3 b7 a2 c6 g3 f6 Ke6 c5 Bh6 f7 Ne7 f8B Bd2 h3 e3 Bb2 Qb6 c7 Nf5 Nf6 Ng7 Nf3 Nd7 b8N Ra4 Rf1 Rf4 Ne8 Kd5 Rc1 Nf6 Rc4 Be6 Na6 Bf7 Be7 Rf8 h8N Rg8 Kh1 g2+ Kh2 g1N Bf8 Ne2 Bc3 Bg6 Nf7 Nd4 N7g5 Bf7 Bb2 Nb5 Be7 Bc1 Nbd2 Rf8 Nb3 Bd2 Rg1 a1Q Be5 Qb2 Rb1 Rg8 Bf8 Nh7 Bf6 Rh8 B6e7 Nf6 Ra1 Rhh4 Nb8 Rhg4 Ra8 Rg1 Na6 Rb1 Rc8
2K4N/2PP2nr/1Nb2N2/3NP1R1/1bqrpR2/p4p1r/Bk1rP2B/4n2N b - - 0 1 legal: proof: g4 c5 f4 d5 b4 b5 a4 h5 gxh5 e5 c4 Qd6 Qc2 e4 axb5 cxb4 c5 Qe6 Qc4 Qe5 fxe5 dxc4 Kf2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 f5 h4 a5 b6 c3 b7 Kc4 c6 Kb3 h6 g6 d5 c2 h7 a4 c7 a3 d6 Nf6 h5 Nbd7 b8N Ne8 h6 Ra6 Bh3 Nc5 Nd7 Ng7 Nb6 Bb7 Nc3 Bc6 Ncd5 Ra4 Nf6 Nd3+ Kg5 f4 d7 f3 Be6+ Kc3 Bf4 c1Q Ba2 b3 Rh4 b2 Nh3 b1R Nf2 Rd4 Nh1 Kb2 Rg4 Qc3 Bh2 Qc4 Rf4 Rd1 Rc1 Rd2 Rg1 Bb4 Rg3 Rc8 h8N Ne1 h7 Rg8 Ng4 Ra8 Kf6 g5 Ng6 Rg8 Ne7 Rh8 Nh6 g4 Nhg8 R2d3 Rg2 g3 Ned5 Rd2 Rg1 g2 Kf7 Bc3 Ke7 Ba5 Kd8 Bb4 Rf1 g1R Kc8 Rg3 Rg1 Rh3 Rg5 Bf8 Ngf6 Bb4+ Ne8 Rf8 h8N Rf5 Rg1 Rfh5 Nef6 Rh7 Rg5
1bRRr1bB/1K2P2R/2rpnqn1/3nR3/BN4b1/k4RpP/N3qPPq/8 b - - 0 1 illegal: No proof kernel
3b3B/1bnn1B2/3PRpKp/qPN1b1bP/1bPqB3/4r1Rr/2B2N2/3B2k1 b - - 0 1 illegal: No proof kernel
3rb3/1BqkB1p1/nb4P1/N1PnBR1n/4B1PP/2pn4/5RK1/n2rqB1N b - - 0 1 illegal: No proof kernel
2rR1q2/4P2n/n2qP2R/1pprpRB1/NP2KPk1/1B1n2b1/1RbR3n/3N4 b - - 0 1 illegal: No proof kernel
3b1Bn1/P4p2/K3kNp1/2p1P1r1/2B1RN1n/B1P1r1bb/B1b2RPq/2B1q3 b - - 1 2 legal: proof: f4 e5 fxe5 d5 b3 a5 b4 axb4 c3 d4 Qc2 d3 Nh3 dxc2 Ng5 Qe7 Nxh7 Qd8 h4 Kd7 a4 b5 d4 g6 Kd2 c6 Kd3 b3 e4 b4 Kc4 b2 h5 b3 e6+ Ke7 a5 Ra7 e5 Na6 h6 Bg7 d5 Qe8 d6+ Kd8 d7 Ke7 Nd2 b1B Rh4 b2 Ne4 Nc5 a6 Bf6 Ra2 Rc7 a7 Nb7 Kb4 Qd8 Bc4 Nd6 Ka5 Nf5 Bd5 Bg5 Nhf6 c5 h7 Rb7+ Ka6 Bf4 Bc4 Bg3 Rg4 Nh4 Nd5+ Kf8 Bb3 Qe7 d8B Rd7+ Ka5 Qg5 Nef6 Qh5 Re4 Qh6 Kb5 Qf4 Ba5 Rd8 Nb4 Rd3 Nbd5 Re3 Bb4 Qh6 Ba3 Qh5 Bd2 c1B Bc4 Bd7+ Ka6 Bc2 Bb3 b1Q e7+ Kg7 e8B Kf8 Bc4 Bh3 Ba4 Qh6 Bab3 Qh5 Nb6 Ke7 Nbd5+ Ke6 Rb2 Re1 Bh6 Bg5 Ba2 Re3 Bf8 Qe1 Bh6 Bd3 Rf2 Bb1 Nd7 Bd8 N7f6 Bc2 Bg5 Rd3 Bgc1 Re3 Ne8 Qg4 Bb5 Bf4 Nef6 Qg3 Be2 Qh2 Bec4 Bg3 Nd7 Nh6 N7f6 Rg8 h8B Rf8 Bg7 Rh8 Bab2 Ng8 Ba3 Rh5 Bf8 Rg5 Nf4+
2q2RB1/Kp1b3P/1PB1Bp2/5Pqr/kp1RN3/Bq1N1r1p/5n1P/2nB2q1 b - - 2 3 legal: proof: d4 c5 dxc5 a5 b4 h5 a4 e5 g3 h4 b5 h3 Qd4 exd4 Ra3 Bd6 Rb3 Be7 Rb4 Bh4 gxh4 axb4 Kd2 g5 Kd3 d5 e4 Kd7 c4 g4 f4 g3 h5 g2 c6+ Kd6 c7 Kc5 h6 f6 f5 Ra6 a5 Qe7 h7 Bd7 c8B Bc6 e5 Qc7 e6 Bd7 e7 Nc6 e8B Qb6 Be2 Nh6 Nf3 g1Q Nc3 Qg5 Ne5 Qc7 Ba3 Rg8 Rd1 Ng4 Bf3 Ra7 a6 Na5 Ne4+ Kb6 Rd2 Nb3 c5+ Ka5 c6 Ka4 Bd1 Qb8 c7 Nf2+ Ke2 Ra8 a7 d3+ Kf3 d4 b6 Bc6 Be6 Bd7 c8B Rg6 B8f7 Rh6 Bg8 Rh5 Bd5 Qc7 Bde6 Qc2 Bd5 Nc1 Bde6 Bb5 Bcd7 Rc8 Be8 Rc3 Bc6 Rb3 Re2 d2+ Nd3 Nh1 Rg2 Nf2 Rg4 Qc5 Bcd5 Bd7 a8R+ Qa5 Rf8 Qa8 Rh4 Qc8 Bc6+ Ka5 Be2 d1Q Rg4 Qg1 Bd1 Rc3 Nd6 Nh1 Ke4 Nf2+ Kd5 Rb3 Ne4 Rc3 Ne1 d3 Kd6 d2 Rf4 Rf3 Nd3 Qe8 Kc7 Qa8 Be2 d1Q Rg4 Qb3 Bd1 Qa6 Kb8 Qac4 Ka7 Qcc3 Nd2 Qcc4 Rd4 Qcc3 Bcd5 Ka4 Ne4 Qc8 Bc6+
B2Nr1n1/2BRR1rP/2kP1q2/5Nr1/1B1Rr1PB/6n1/3n1P1q/K1bbq3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 g4 exf5 Nf6 Bd3 Ng8 h3 h5 Qf3 Kf7 Qf4 Ke8 Qh2 g3 Be4 gxh2 Bc2 Nh6 Bd3 Ng8 g4 h4 b4 Bg7 Ra3 Bh6 Be4 Bg7 Rg3 hxg3 Bd3 Bf8 Kd1 Kd7 Kc2 c5 Kb2 a5 h4 e5 d6 e4 h5 c4 b6 e3 b5 e2 f6 e1Q f7 g2 h6 a4 b7 a3+ Ka1 c3 h7 a2 b6 c2 Na3 Qee8 Nb5 Kc6 d7 Ra5 Ne2 g1R Ng3 Re1 Nd6 Rg5 Ngf5 Bh6 f8B Qc7 d8R Re4 Rd1 h1N Rd7 Na6 b8B Ng3 b7 Nc5 Be7 Rg7 Ba3 c1R+ Bb1 Qed8 Bh4 Qf6+ d4 Bf4 Re7 Be6 Bb4 Bb3 Rd7 Rc4 Bc2 Re5 Be4+ Rd5 Re1 Bd1 Bg2 Bc1 Ree7 Nce4 Bf3 Qb6 Bc7 Nd2 b8R Qb5 Rbd8 Qb8 Ne4 Re5 Nc5+ Re4 Nb7 Rc5 Bca5 Qf4 Bc7 Q4h6 Bg5 Qh2 Bh4 Nh6 Bh1 Re8 Bg2 Ng8 Bh1 Re5 d5+ Kb5 d6 Kc6 Ra8 Rc8 Ra3 Re8 Rd3 Rc5+ Rd4 Ra5 Nh6 Rag5 Nf5 Bf3 Re6 Re5 Na5+ Kb5 Rc4 Ba3 Ree7 Be2 Ba8 Re4+ Rd4 Bf3 Nb7 Kc6 Bc5 Bb4 Kb2 a1Q+ Kc2 Qe1 Kb2 Bd1 Ka1 Ba3 Bb4 Bc1 Nd8+
bb6/1P5r/1q1k1Bb1/NRn2B1P/P3B2r/nN3PKB/3bR3/2bnn2N b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c5 d4 Ra7 dxc5 Ra8 b3 a4 Qd4 a3 Qe5 Qb6 Qb2 Qd8 Ke2 b5 Ke1 axb2 a4 b4 Ra3 bxa3 b4 Qa5 Nc3 Qb6 Nb1 Qd8 h4 e5 c4 Ke7 b5 d5 c6 g5 f6+ Kd6 c7 d4 f7 d3 f3 e4 Kf2 e3+ Kg3 a2 b6 a1B h6 e2 h7 e1N Na3 b1B Ne2 g4 Rh2 d2 Bh3 d1N Bg5 Bc3 Bf6 Bh6 f8N Bc1 Nd7 B3d2 Nc5 Bg6 Nb3 Bb7 c8B Nc6 Bf5 Na5 Be4 Ra7 Rg2 Ba8 c5+ Ke6 c6 Kd6 c7 Nc4 c8B Qc7 Bg5 Nf6 Bcf5 Nd7 Bf6 Nc5 Rf2 Qd8 Rh2 Rd7 b7 Qb6 h5 Rhd8 h8R Rh7 Rg8 Re8 Nb1 Na3 Na5 Re5 Rg2 Rd5 Re8 Rd4 Re5 Rb4 Nd4 Rc4 Re2 Rb4 Ndb3 Rd4 Kh4 g3 Nc3 g2 Kg4 g1B Kg3 Ne3 Nd1 Bh2+ Kh4 Rc4 Nf2 Nd1 Kg4 Bg1 Kg3 Rb4 Bd3 Rh4 Nh1 Bge3 Bde4 Bg5 Bh8 Bd8 Bf6 Bc7 Re8 Bb8 Re5 Nd7 Rb5 Nc5 Bd8 Nac2 Bg5 Na3 Bf6
2RB1Rnr/Npb1B3/N2b3k/nPB5/1KP5/PbP4N/3q1Br1/1q1r2q1 b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 f5 exf5 a5 b4 c4 d3 Rh7 dxc4 Rh8 a3 a4 b5 Ra6 Qd3 Ra8 Qb3 axb3 c3 Nc6 Nd2 Ra6 Bd3 Nb8 Bb1 Ra8 Ba2 bxa2 h4 Kf7 f4 d5 h6 g5 h5 e5 h7 Kg7 h6+ Kf6 Ne4+ Kf7 Kd2 g4 f6 Kg6 f5+ Kf7 Nc5 e4 Nh3 d4 Kc2 g3 Kb3 d3 Bg5 g2 Na6 g1Q Rf1 a1Q Bh4 e3 Bf2 Bg7 Kb4 e2 Rh2 Kf8 f7 e1B Rg2 d2 Rg5 Ke7 f8B+ Kf7 f6 d1R Rc5 Kg6 f7 Qd2 Be7 Bf5 f8B Be5 Rc8 Bc2 Bd8 Bg3 Bfe7 Bc7 Bfc5 Beg3 Rf8 Bb3 Bf2 Nf6 Bfc5 Rg8 h8B Qb1 h7 Kh6 Bf2 Rg4 Bec5 Ng8 Bhf6 Bgf4 h8N Rg2 Ng6 Bfd6 Bfe7 Ba2+ Ka4 Nc6 Ne5 Na5 Nc6 Bb3+ Kb4 Qa1 Rf7 Bf4 Rb8 Bfd6 Na7 Qb1 Rf5 Bb6 Bc7 Nf6 Rg8 Rb8 Rg3 Rh8 Rg8 Rg6 Rc8 Ng8 Rff8 Rg2 Bcd8 Bbc7 Bg3 Re2 Bgh4 Rg2 Bf2
2n5/1r1r1PPn/B6N/1pNRP1qN/7P/1pk1rb2/R2b1K2/nbBB3N b - - 0 1 illegal: No proof kernel
1NR4n/p4r2/1rb1rB1n/1n1k1BKN/pb2P2B/R1Pr4/1RP4P/bB6 b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 b5 Kf2 c4 Ke1 c3 dxc3 bxa4 g4 f5 Bh3 h5 Bf1 Qf6 Qd4 Qg6 Qe4 f4 Qg2 Qf5 gxf5 Rh7 Qg5 Rh8 Qg4 hxg4 Kd2 Ke7 b4 g5 e6 Kd6 e7 g3 e8B g4 f6 g2 f7 g3 b5 f3 Ke3 f2 Kf4 Nh6 b6 Bb7 Bd2 Bc6 b7 Kd5 Ra3 Bb4 f8R Na6 b8B Nc7 Be1 Nb5 Bc7 Rb8 Bd2 Rb6 Nh3 g1N Be1 g2 Bd8 Nf3 Bf6 g1B Nd2 Nh4 Nb3 Ng6+ Kg5 Rh7 Rg8 Rf7 Nc5 Nh8 Na6 Re7 Nb8 Re6 Bf7 d6 Ra2 Ba3 Ra1 Bb2 Ra3 Ba1 Re8 Ke4 Rf8 d5 Nf4 d4 Nh5 d3 Rc8 d2 Bh3 f1R Bf5+ Kd5 Bh4 Bc5 Rg1 Rf4 Rb1 d1R Rb2 Rd3 Bg8 Bb4 Bf7 Kd6 Bg8 Ree4 Ba2 Re6 Bb1 Kd5 Re8 Re7 Rc8 Rfe4 Raa2 Rf7 Ra3 Re6 e4+
kb6/1p1PN2P/rN1Rnb1b/2N4P/1r1qP1p1/3BRn2/pBn1K3/4RN2 b - - 0 1 illegal: No proof kernel
1r2rB2/1N5p/1K1N3P/P2k2p1/N1N1Pnp1/BP1qR2R/r3n1Bp/1b4r1 b - - 0 1 illegal: Other
1nNqqn2/1rp1PN1b/P7/2PrR1b1/q1Rn2B1/1PK1B1k1/Nn6/n2B3B b - - 0 1 illegal: No proof kernel
1r1N1B2/2P1P1R1/p1b1rrb1/Kn2b1Rn/3k4/P3q1BP/B2nRb1q/2R1N3 b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 fxg4 Qd3 h4 Qg3 hxg3 Kd2 Kf7 Kc3 Ke6 Kb4 Kd5 f4 b5 h3 g5 c3 a6 a3 g2 f5 g3 e6 g4 e7 Bb7 e8R Rh6 e3 Qe7 f6 Bg7 f7 Nf6 f8B Nh5 Rh2 Nc6+ Kb3 b4 Ka4 b3 Nf3 g1R Ng5 b2 Nf7 g2 Nd8 g3 Nd2 b1N Nf3 Nd4 c6 Rb8 Ka5 Nb5 c4+ Ke4 c5 d5 Bb2 d4 Bc4 d3 Be5 d2 Ba2 d1B Bf4 Nd2 Rc1 Qe5 Ne1 Rf1 Re7 g1B Re2 g2 Bg3 Bc2 Rc7 Bf6 Rg7 Qe7 Rg5 Rf4 Rg7 Bf2 Rg5 g1Q Rg7 Ke5 e4 Kd4 e5 Qh2 e6 Qf7 e7 Qe6 c7 Bf5 c8R Qe3 c6 Re4 Ra1 Re6 Rc1 Ba8 Rc5 Bd3 Rf5 Be5 Rfg5 Rhf6 Rc7 Bg6 Rb7 Nd6 Rb1 Nb5 c7 Bc6 Rc1
1r4b1/n1np1R2/r5nN/2Bbp2R/1q1P2Pb/1k1N1P1K/3P2Nb/1B2RR1b b - - 0 1 illegal: No proof kernel
NNn1R1q1/BRp2n1r/1NP1K1bb/8/2nbP2B/2r1r1pr/1B1PB1P1/k7 b - - 1 2 legal: proof: f4 b5 h4 g5 a4 e5 axb5 exf4 c4 d5 c5 g4 Qc2 Qf6 Qc4 Qg5 hxg5 dxc4 Kf2 Kd7 b4 Ke6 c6 Kd5 e3 h5 b6 f5 b7 a5 b5 a4 g6 h4 g7 a3 b6 f3 Nh3 a2 Rg1 f4 Bd3 c3 Bb2 c2 Be5 c1R Ng5 h3 Ba6 h2 Ne6 h1R Bb5 Ra3 Bb2 Rcc3 Be2 R1h3 Re1 Nd7 b8B Nh6 g8N Rh7 b7 Nb6 Ba7 Nf7 b8B Bh6 Nf8 Bf5 Nd7 Bg6 Ne7+ Ke4 Nd5 Nc8 Bd4 Rab3 N5b6 g3+ Kf1 f2 Bf6 Ra3 Na8 Kd5 Bh4 Rab3 Bh5 Kc4 Ke2 f1N Kf3 Kd3 Kg4 Kc2 e4 f3 Ba7 f2 Nb8 Re3 Rd1 Rbc3 Na3+ Kb3 Rab1 a1B Nc4 Ka2 Ncb6 Re2 Bg5 Ne3+ Kf4 Re1 Be2 Nc4 Kg4 f1Q Bh4 Qf6 Rdc1 Qd8 Rd1 Bh5+ Kf5 Qg8 Ke6 Bg6 Rdc1 Rf1 Rd1 Rff3 Rf1 Rfd3 Rf5 Re3 Re5 Rc1 Ba3 Bd4 Bb2 Rcc3 Rd5 Na3 Rd8 Nc4 Re8 Qh8 Ba3 Qg8 Rb5 Ka1 Bb2+ Ka2 Na4 Kb1 Rb7 Ka2 N4b6 Kb1 Bc1 Ka1 Bb2+
1b1k2n1/5qP1/r3P3/1rp3P1/1nNpBBbN/5Rn1/nKP3NN/r2bB1R1 b - - 0 1 legal: proof: d4 e5 f4 exd4 a4 b5 axb5 g5 g4 h6 Qd2 Ke7 fxg5 Ke8 g6 h5 g5 Rh7 Qf4 Rh8 Qg4 hxg4 Kd2 f5 h4 c5 e4 d5 b4 a5 b6 a4 b7 a3 e5 f4 h5 f3 e6 d3 Kc3 g3 h6 a2 g7 f2 b5 d4+ Kb2 g2 b6 d2 h7 d1B Nc3 Ra5 Nd5 Ra6 Bd3 f1N Nf3 g1N Rh3 Ng3 Bf4 Be7 Be4 Qd7 Ne3 Nc6 b8N N1e2 b7 Kd8 Ng2 Bd6 Nh2 Qf7 Nd7 Nc3 b8B Nb4 Ne5 Bb7 Nc4 Bg4 Re1 a1R Rg1 Nca2 Bd2 Bc6 Be1 Bb5 Rh6 Be8 Rf6 Bd1 Rf3 Bb5 Nce3 Bbe2 Nc4 Bc7 Rc3 Bg4 Rf3 Bb6 Be5 Bc7 Bf4 Bb8 Bd6 Nh6 Bf4 Re8 h8N Ng8 Ng6 Re7 Rc3 Rb7 N6h4 Rb5 Rf3
2NN1R2/1bbB3k/2B3r1/Pp1nNq2/1P2r3/PR3p2/rqq2Pn1/2r1BB1K b - - 1 2 illegal: No proof kernel
1R5B/1Bpn1R2/1rq5/1n2NqP1/1N1qpbNq/RbP1r2r/2kPP3/3R1K2 b - - 1 2 legal: proof: h4 d5 f4 b5 a4 e5 axb5 g6 c3 g5 Qa4 exf4 Qe4+ dxe4 hxg5 Qd5 Nh3 Qd6 Ng1 Qd8 b4 Kd7 g4 Kd6 b6 Kd5 b5 Kc4 b7 Kb3 g6 f5 g7 a5 g5 h5 b6 f3 Ra3+ Kc2 Ra1 f4 Rh3 a4 Rh1 a3 Rh3 h4 Rh1 h3 Bg2 f2+ Kf1 h2 Nf3 a2 Rg1 h1Q Nh2 Rh3 Bf3 Nc6 b8N Ra6 b7 Bd6 Bb2 Nf6 g8R Nd4 Bg2 Nb5 Nc6 Nd7 b8R Rb6 Ba3 Re3 Ng4 Qh4 Bf3 Bb7 Nce5 Bd5 Rg6 Bb3 Bc5 Qdh8 Bd4 Qf6 Kg2 f1R Rg7 Qe6 Rh1 Qc4 Re7 Qc6 Rf7 Rf2+ Kg1 Rh2 Kf1 Rh3 Bg2 f3 Na3+ Kb2 Nc2 f2 Rd1 a1Q Nb4 Qa7 Ra1 Qa4 Ra3 Qa7 Nf3 Qa4 Bh8 Bf4 Nfe5 Kb1 Nc2 Qd4 Nb4 Rhf3 Bh3 Kc1 Nh2 Kb2 Be6 Rh3 Bd5 Kc1 Nhg4 Kd1 Na2 Kc2 Rg1 Qg6 Bb7 Qc6 Nb4+ Kb2 Rh1 Bg3 Kg2 Bh2 Rg1 f1Q+ Kh1 Qf5 Kg2 Bg3 Rd1 Bf4 Na2 Kc2 Kg1 Rh2 Kf1 Rhh3 Nb4+
2n5/1k1Bb1KR/qq1pp2N/B3pN2/P2PP1R1/b1r2qRn/2nP4/B1B2r2 b - - 1 2 legal: proof: g4 h5 gxh5 a5 b4 axb4 Bb2 b6 Ba3 Ba6 Bc1 Bd3 cxd3 f6 Qc2 Qc8 Qc3 Qd8 Qe5 fxe5 f4 c5 Kf2 d6 Kg3 Kd7 Kh4 Kc7 Kg5 c4 Kg6 b5 h4 b3 a4 c3 e3 c2 h6 b2 f5 b4 h7 b3 h5 Qc8 h6 Kb7 f6 Na6 f7 Nb4 Na3 b1Q Nh3 b2 Nc4 Qg4+ Ng5 Rc8 Ra3 Qf3 Rg1 Qa2 Rb3 b1Q Rg4 Qa3 Bh3 Qe2 Nb6 Rc3 Nc8 Qbb2 Rg1 Qf3 Bd7 Qaa2 Ra3 Qc4 Rg4 Qa6 Rb3 Nf6 Ra3 Nfd5 Rb3 Rg8 h8R Nb6 h7 Qb1 Ne6 Qb2 Nd4 Qb1 Nf5 Qb2 Na7 Nc8 Nc6 Qb1 Nh6 Qb2 Nd4 e6 e4 Be7 f8B Qb1 Ndf5 Qb2 Kf7 g5 d4 Rg6 Ra3 Rf6+ Kg7 Bd8 Be7 Qb3 Rg3 g4 Rg8 Qb1 h8B Qb2 Rh3 g3 Rh5 g2 Rh4 Bb6 Bd8 g1N Rg4 Nh3 Re8 Bc5 Ba5 Bb6 Re7 Bd8 Rf7 Nc6 Bb4 Be7 Rb3 Qb1 Bba3+ Nb4 Bab2 Qa5 Ba1 Qa6 Kg8 Qb2 Rh7 Rf7 Bf6 Qb1 Bcb2 c1B Ra3 Nc2 Bh4 Bf8 Bd8 Be7 Ba5 Rf6 Kg7 Rf8 Ra2 Rf6 Ba3 Qbb6 Rb2 Rc5 Rb3 Bb2 B3b4 Ba3 Bbc3 Rf8 Bcb2 Rc3 Bc1 Qfd3 Ng3 Rf1 Ngf5 Qf3 Rh8 Rc6 Rd3 Rc3 Rh7 Qg2 Rdg3 Qh1 Kg8 Qf3 Kg7
N1r4R/Prp2p2/B1P1p2N/7P/r1nRBbrb/1b2PNR1/2k2K2/2Nq1n2 b - - 1 2 legal: proof: c4 d5 f4 g5 fxg5 a5 b4 Ra7 bxa5 Nh6 c5 Ra6 Qc2 Ra8 Qc4 Ng8 g4 dxc4 g6 h6 g7 Qd3 g5 Qc3 g6 Qe3 Bb2 Qd3 Bf6 Qd8 Bg5 hxg5 a4 Kd7 h4 Kc6 d4 Kd5 a6 Ke4 c6 b5 a7 g4 d5 g3 a5 b4 d6 g2 a6 c3 h5 c2 d7 c1B Ra3 b3 Kf2 Nf6 g8B b2 g7 Bf4 Bh7+ Kd4 g8N Nd5 Bd3 Ne3 Nc3 b1R Nh6 Rb7 Be4 Bg7 Rb3 Bf6 Na2 Kc4 Nc1 Bh4+ Kf3 Rf8 Rb4+ Kc3 Rh3 Bf6 Kf2 Bh4+ Rg3 Rg8 Nf3 g1R Ra4 Rh1 Rb4 Rg4 Nd3 Kc2 Bg2 Ra1 Bh3 Ra4 Bf1 Qh8 d8R Qd4 Re8 Be6 Rh8 Bb3 Nc1+ Qd3 Rd4 e6 Bg6 Nd7 Be4 Rab8 a8N Ne5 a7 Rc8 Bd5 Qd1 Bh3 Nf1 e3 Nd2 Bg2 Rcb8 Bf1 Rc8 Bb5 Nec4 Ba6 Nf1 Be4+
3rN1BN/r2qP2k/1p1N2N1/P1p1B3/3n3K/Pp1b1b1b/rP1b1R1n/B6R b - - 0 1 illegal: Other
2R1q3/1b1Rn3/p2KN1kP/r7/2b2rpp/PPr3Pq/B1R1rNN1/2BNn3 b - - 0 2 illegal: No proof kernel
1Br2nKN/1kr2rR1/2Ppp1q1/3N4/B1N2bPn/1Rpqq3/2PRP3/1N1q4 b - - 0 1 illegal: No possible last move, all moves rejected
1Nb2K2/1PpN2BN/rbR1q1P1/n1P1p1nB/k1pr1BRn/7p/2P5/2N1b3 b - - 1 2 illegal: No proof kernel
4rr1b/NNP1P2r/KpbPnk2/R2rp3/1R1Np3/4P2B/1B1Bp3/1q2B1n1 b - - 0 1 illegal: No proof kernel
5R2/1kn3q1/Pr3RR1/nn2Kb2/Q1QN1Pb1/n1NP1P2/1Q1b1r2/bq5N b - - 0 1 illegal: No possible last move
5Q1N/2qkPp1b/2Br3P/1Np2n1N/4rp1B/6bQ/1B2pPPQ/2r1b2K b - - 0 1 illegal: No proof kernel
5N2/Rpp3r1/r3kbQ1/2bn2p1/1N1pN2P/1p1R1P2/b1PK2P1/1Q1Q2nR b - - 1 2 legal: proof: d4 e5 dxe5 f6 e6 Na6 e7 Kf7 Bd2 Nb8 Bh6 Ke8 Bc1 Kf7 e4 Ke6 e5 Nc6 Bd2 Kd5 e6 Nb8 Bf4+ Kc6 Be5 fxe5 a4 h5 Qxh5 a6 b4 Nf6 a5 Ne8 b5+ Kd5 b6 Kc6 Bb5+ axb5 a6 Nf6 a7 Ng8 Qh7 Na6 Qe4+ d5 Nd2 Bd7 Ke2 Be8 Qf4 Bg6 Qe3 Qd6 Qa3 Bf5 Nb1 Rd8 Kd1 Qb4 Qh3 Qa5 Qh7 Rd6 Ne2 Be4 Ng1 Kc5 a8N Rc6 Ke2 Kd6 Ra4 Rc3 Ke1 Rf3+ Ke2 Rf7 Ra1 Bf5 Kd1 Kc6 Ke2 Nb4 Ke1 Qa7 bxa7 Na6 e8Q+ Kd6 h4 g5 f3 e4 e7 b4 Ra2 e3 Ra1 e2 Nc3 Nh6 Qd8+ Ke6 Na2 Rg7 Nh3 Ng4 Rd1 Nf2 e8Q+ Be7 Qeg6+ Bf6 Nb6 d4 a8R Bd3 Nd7 Bc4 Rd3 Re8 Kd2 e1B+ Ke2 Bc3 Ra7 Bb2 Ke1 Ba3 Qa8 Ree7 Kd2 Ref7 Ng1 Nh3 Ne2 Ng1 Ng3 Bb3 Ne4 Bd5 Nac3 Ba2 Nd5 b3 Nb4 Re7 Nc6 Bc5 Nf8+ Kd5 Qae8 Re6 Nb4+ Ke5 Qa4 Rc6 Qa3 Re6 Qc1 Rc6 Nd5 Nb4 Qa1 Ra6 Qb1 Nc6 Nb4 Ne7 Qg8 Nd5 Qe6+ Kf4 Qh3 Ke5 Qg3+ Nf4 Qge1 Nd5 Nh7 Ke6 Qed1 Kd7 Nf8+ Ke7 Nh7 Ke6 Nf8+
2n1b3/1Q2Q3/1Pq1pr1p/rB2PpN1/NB4QP/qp6/P1kn1bNK/1r4B1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 f4 Ra6 fxg5 Ra7 b5 Ra8 g4 b6 h4 Nc6 Na3 Bb7 Rb1 Bc8 Rb4 axb4 Rh3 Nb8 Rc3 Bg7 Rc6 Bf8 Rc5 bxc5 Kf2 Kd7 Kg2 Kd6 d4 f5 e4 e6 b6 c6 g6 c4 g5 c3 g7 c2 g6 b3 Qg4 h6 Bb5 c5 Nf3 c4 Nb1 c3 Be3 c1R Ng5 c2 Kh2 Ra4 Nc3 Ne7 g8Q Qd7 g7 Qc6 Bg1 Nd7 Qf7 Ra5 g8N Rb1 Nf6 c1Q Na4 Qa3 Nh5 Nc5 Nf4 Bd7 Ng2 Be8 Qg7 Nc8 Qa7 Rh7 Qb7 Rc7 e5+ Kd7 d6 Ne4 d5 Nd2 Nf3 Be7 Nb2 Bg5 Na4 Be3 Ng5 Bf2 Be2 Kd8 Bb5 Rf7 d7 Ke7 Qg3 Rf6 d8B+ Kf8 Bc7 Ke7 Bd6+ Kd8 Qa8 Kd7 Bb4 Nc4 d6 Nd2 Bd3 Qc3 Qa6 Kc6 d7 Kd5 Qb7+ Kd4 Bb5 Qc4 Qf4+ Kd3 d8Q+ Kc2 Qde7 Qc6 Qg4
1B3k1Q/4N2b/P2Q4/3P3p/1N2nb2/1QPPq2R/nKp2Qq1/2rb2Q1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 a5 b4 Nh6 bxa5 Ng8 hxg5 e5 a4 c5 f3 e4 fxe4 Bg7 Ra2 Bf8 c3 d5 Rb2 d4 Be2 d3 Rb4 cxb4 Bh5+ Kd7 Bf7 Nf6 Bb3 Ke8 Bc2 Ng8 Na3 dxc2 Nb1 b5 Rh2 Ra7 Rh3 Rd7 Rh1 Rd5 exd5 Qf6 Rh6 Qb6 Rh1 Qd8 a6 h5 f6 b3 g6 b2 g7 b4 a7 b3 a8Q Qc7 a5 Ba6 f7+ Ke7 Nf3 Qc5 Nh4 Bc8 a6 Qb4 Rh3 Nd7 Na3 b1Q Nb5 b2 Na7 Ngf6 g8Q Ne4 Qg3 Qb3 Qf2 Bh6 Nf5+ Kf8 Nc6 Ne5 Nb4 Nc6 Ne7 Rg8 g4 Bf4 Qb7 Bf5 g5 Bh7 g6 Qc4 Qg4 Qc5 Qgg1 Qa1 Ke2 b1B Kd3 Qa7 Kc4 Qe3 Kb3 Ba2+ Ka3 Qb1 Qb6 Bb3 d3 Ba4 Bd2 Qf1 Kb2 Qg2 Qb5 Ne5 Qc4 Bd7 Qb3 Bg4 Be1 Bd1 Bd2 Kg7 Bc1 Nc6 f8Q+ Kh8 Qb8 Kg7 Qd6 Kf8 Bd2 Nd4 Bc1 Ne2 Bd2 Nc1 g7+ Ke8 Be1 Rf8 g8Q Na2 Qh8 Rg8 Qd2 Kf8 Bf2 Qef3 Ba7 Qe3 Qhe5 Rg3 Bb8 Rf3 Qde1 Rf1 Qd2 Be2 Qd4 Rc1 Q4e5 Bg4 Qdf2 Bd1 Qh8+
4Q1Q1/n2nB1bQ/K3P3/PnRPb3/3nNr2/1bb1nQQ1/N3P1r1/q3k3 b - - 0 1 legal: proof: b4 a5 bxa5 d5 a4 h5 g4 e5 f4 g5 c4 Bd6 cxd5 Ra7 Ra3 Bf8 Rf3 Ra8 Bh3 Ke7 fxe5 Kd7 Rf4 gxf4 g5+ Ke8 Bg4 hxg4 d4 Ke7 Kd2 c5 Kd3 f5 Kc4 b5+ Kc3 f3 h4 g3 d6+ Ke6 d7 Kd5 h5 Ke4 a6 f2 h6 f1N a7 g2 a5 c4 g6 b4+ Kc2 f4 g7 b3+ Kc3 b2 h7 f3 Rh5 f2 Qd2 Nf6 g8Q Nc6 Qd1 Ng3 Bd2 f1N Bg5 Ne3 Qg6+ Ngf5 Qg7 Rg8 Na3 b1N+ Kb2 c3+ Kb3 c2 Ka4 c1B Kb5 Bb2 h8Q Bc3 Qgh6 Bg7 Nh3 g1B Nc2 Bh2 Nb4 Bf4 Qe1 Na3+ Kc5 Bh2 Na2 Nb5 Q6h7 Qc7 d8Q Be6 Qg3 Bb3 e6 Qe5+ Kb6 Nd7+ Ka6 Rc8 Qb6 Rcf8 a8Q Rf6 Qe8 Nca7 Qbb8 Rf7 Qc7 Qf6 Qf2 Be5 Qf1 Rff8 Bh4 Rf7 Nf2+ Kf4 Bg5+ Kg3 Qh1 Rff8 Qd5 Rf7 Ne4+ Kg2 Qcd6 Kf1 Q5c6 Ke1 Qdb8 Qg6 Be7 Qf6 Qbc7 Bh6 Qcb8 Rg2 Qh8g8 Bg7 Qca8 Nc2 Rg5 Nfe3 Qc7 Qf1 Qd6 Rf4 Rf5 Bef6 Rc5 Be5 d5 Qh1 Qeh5 Ncd4 Qf3 Qh3 Qae8 Qf5 Nf6 Qb1 Ne4 Qa1 Qc6 Bc7 Qd6 Bb8 Qe5 Bd6 Qg5 Bde5 Qgg3+
Kb4Bn/2P2PPB/pP1BR3/2BB4/5kq1/brp3b1/2r3qQ/Qb1N2n1 b - - 0 1 illegal: No proof kernel
q4B2/pn1Pb2K/r1PnP2Q/4q3/2bp1Q1P/N3p1p1/1Q1r4/QQ1R2kN b - - 0 1 illegal: No possible last move, all moves rejected
bR1QBr2/1PP5/q3RQRq/b1Kb2PQ/rnP1k2q/q7/3n1Q1N/8 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 c5 a4 c4 axb5 c3 b6 a4 b5 a3 dxc3 Bh6 c4 Bg7 Nc3 Bxc3+ Bd2 Bg7 c5 Bf8 Bf4 Nc6 Bb8 Nxb8 Ke2 Kf7 Kd3 e5 Kc4 d5+ Kb4 h5 c4 e4 g4 a2 f4 h4 b7 e3 b6 h3 f6 Ke6 g6 e2 g7 e1Q+ Qd2 d4 g5 Kf5 f7 h2 Bh3+ Ke4 f5 d3 f6 Qe7 Bd7 Qh4 Qd1 d2 Be8 Be6 Qh5 d1B Nf3 Bd5 Re1+ Be2 Kb5 h1Q c6 Qa3 c7 Bb4 f8Q Nc6 b8R Ba5 f7 Nb4 Kc5 Nf6 g8Q Ra7 Rab1 a1Q Nh2 Ba8 b7 Ra6 Red1 Bf3 Rd6 Q1a2 Qgg7 Bg2 Rc6 Ra7 Qd6 Rf8 Qd8 Ra6 Qhd1 Qh6 Qh5 Qe1 Rb2 Qh4 Re2+ Kf4 Qg8 Bb6+ Kd6 Qa4 Nf3 Q2a3 Qh8 Rg8 Nd2 Bd5 f8Q Ra7 Qff7 Rf8 Nf3 Qb5 Re1 Ra4 Nh2 Qa6 Re7 Ba5 Kc5 Rg8 Qf8 Kf5 Rg7 Ke5 Qff7 Rf8 Re6+ Kf4 Qe2 Kf5 Qfh5 Kf4 Rg6 Ne4+ Kd4 Nd2 Kc5 Kf5 Qf2+ Nf3 Rb6 Ke4 Qhf6 Nd2 Re6+
2q3N1/rQpB1Bk1/1B4PP/Q1QK4/3Pn3/3q1nR1/1rPr2qq/1Q4n1 b - - 0 1 legal: proof: f4 b5 a4 e5 axb5 Qf6 fxe5 Qd8 e4 d5 b4 Qg5 e6 Qe7 e5 Qd6 Ra3 Qd7 Re3 Qd8 Re4 dxe4 g4 g5 Nc3 Qd5 Nce2 Bb7 Nf4 gxf4 Nh3 Qd4 Ng1 Bd5 h3 Bc4 g5 Be2 Ba3 Qd3 Bc1 Bg4 hxg4 Qd8 Ke2 a5 d4 h5 e7 f5 g6 f3+ Ke3 f4+ Kd2 a4 Kc3 e3 Kc4 f2 g5 e2 b6 e1N b7 f3 b5 a3 b6 a2 Qd2 a1R Rh3 h4 Qa5 Qc8 Rg3 h3 Bd2 h2 Bh3 f1Q+ Kd5 h1Q Ne2 Bh6 Nc3 f2+ Ne4 Nd7 b8Q Qh2 b7 Qd3 Qc5 f1Q Ba5 Qff2 Bb6 Rb1 Qa7 Qfg2 b8Q Rb2 Qaa5 Ra7 Qb7 Nf3 Bg4 Nb8 Be6 Nc6 Bf7+ Kd7 e8B+ Kd8 e6 Ng1 Qa8 Ne5 Bd7 Nef3 Nf6 Rh7 Qb7 Rh8 Qcc6 Ke7 Qcb5 Kf8 e7+ Kg7 e8Q Rh7 Qee1 Rh8 Qb1 Rh7 Qc5 Rh8 Nh7 Nf6+ Ke6 Ne4 Kd5 Re8 Nf6 Ned2 Bg4 Re2 Ng8 Ne4 Bd7 Rd2 gxh6+
1Rnrb3/3kPqn1/1N2r3/3rr3/1RPP1b2/B2n3Q/P3nQKn/Q2R2R1 b - - 0 1 legal: proof: f4 d5 g4 e5 fxe5 h5 gxh5 c6 b4 d4 Nc3 Qb6 Bg2 Qd8 Bd5 a6 Bc4 a5 Bb5 cxb5 bxa5 Qb6 Nb1 Qd6 c4 Qd8 Nc3 dxc3 Kf1 g5 e4 f5 h4 b4 d4 b5 h6 f4 h7 b3 a6 c2 e6 f3 e7 f2 e5 g4 a7 b4 h5 g3 h6 b2 Qd2 b1R Qe1 g2+ Ke2 f1N Kf3 b3 Rh3 b2 Qe2 Kd7 e8R Qe7 Rh5 Nf6 Qe1 Nh2+ Kf2 Qf7 Nf3 g1N Kg2 Ne2 Rg5 Nc6 Qf2 Nh5 Rg3 Rg8 h8Q Bd6 h7 Ng7 Re6 Rb8 a8R Rb5 Rb8 Rd5 Rh6 Ne7 e6+ Kc7 Rh5 Bd7 Ne5 Be8 Nd7 Bf4 Nb6 Nc8 e7 Rf8 Qg8 Re5 h8Q Rd5 Be3 Re1 Bc1 b1R Ba3 Rbb5 Rd1 c1N Qgh7 Re5 Qb1 Rbd5 Qa1 Kc6 Rb3 Nd3 Rg5 Re6 Qh3 Rg8 Na8 Kd7 Rg6 Nc3 Rg5 Ree5 R3b4 Ne2 Nb6+ Kc7 Re1 Bd7 Kh1 Rd8 Rd1 Be8 Rgg1 Kd6 Kg2 Kc6 Na8 Kd7 Nb6+
b2n4/kn1Q1N2/b4RKN/P2PBnP1/1QQPrr2/1rb3Q1/r1bq4/6N1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 bxa3 Na6 a4 Nb8 a5 Be6 Be2 Bh3 Bf1 Bc8 g4 h6 a4 Bg7 f5 Bf8 Be2 Nd7 Ra3 Nb8 Rf3 h5 Rf4 gxf4 g5 Na6 Bf3 Nb8 Bg4 hxg4 Ke2 Kd7 Kd3 c5 Ke4 Kc7 d4 b5 h4 Kb7 h5 e5 h6 b4 h7 g3 f7 b3 a6+ Ka7 f6 f3 Nc3 f2 Rh4 f1B Qd3 g2 Bf4 b2 Bc1 b1B Bb2 c4 Ba3 Bb7 Kf5 e4 Rg4 e3 Na2 c3 Nf3 g1R Nc1 c2 Qc4 e2 Nd3 c1N Bd6 e1R Be5 Re4 Kg6 Bb4 f8Q Nb3 f7 Bc3 Qe8 Na5 f8Q Bc2 Qfb4 Rg3 Qd7 Nbc6 Nf2 Nh6 Ng1 Rf8 h8N Rff4 Nf7 Nf5 Rh4 Qe8 Ng4 Nd8 Nh6 Qf8 Rh2 Qc5 Rf2 Qb5 Qe2 Qd3 Qg4 Rge3 Qg3 Qd2 Rf3 Ba1 Qc4 Rb3 Qb4 Bc3 Qc4 Kb6 a7 Bc6 Rf2 Nab7 Qb4+ Bfb5 Qc4 Ba6 Rf1 Rc8 a8Q Rc7 Qac8 Ka7 Qd6 Re7 a5 Re2 Qdb4 Rh2 Bc7 Ree4 Rf3 Nbd6 Rf2 Ba8 Qd7 N6b7 Be5 Rh1 Nh3 Ra1 Ng1 Ra2 Ng8 Nh6 Kh5 Rg4 Rf6 Rgf4 Kg6 Nf5 Ngh6
Q3Q1N1/1B2nNK1/2qP4/4P1k1/1b5n/2PrP1r1/1NqnQ1nr/1bN1Rr2 b - - 0 1 legal: proof: b4 c5 g4 b5 a4 d5 f4 e5 fxe5 h5 gxh5 d4 Ra2 d3 c3 Rh6 Rc2 dxc2 Ba3 Kd7 axb5 Ke7 b6 Ke8 b5 Rh8 Bb4 cxb4 Kf2 Ke7 Kg3 c1Q Kf4 a5 Kg5 f5 Kg6 a4 h4 a3 d4 a2 b7 a1R b6 b3 h6 b2 h5 f4 h7 f3 h6 f2 Qe1 Bf5+ Kh5 g5 Bh3 f1N Na3 b1N Nc4 g4 Bg2 g3 Nb2 Nd7 b8N Nbd2 b7 Bb1 Nc6+ Kf7 b8Q Qe8 d5 Qc2 Ne7 Ne3 Be4 Ng2 e3 Qc8 Bf3 Qc6 Qe2 R8a4 Qc8 Rd4 Qa8 Rd3 Kg5 Nb6 Be4 Nh4 Bf3 g2 Be4 Nf6 Ng8 Bb4 d6 Nc8 Bf3 Nh5 Be4 Qd7 Bb7 Ne7 Qe8+ Ke6 Qa8 Nf4 Qe8 Qda4 Qa8 Kd7 Kf6 Qc6 Kg7 Ke6 Qf1 Kf5 Ne2 Q2a4 Nc1 Kg5 Qe2 Qc2 Re1 g1R Nf6 Rc8 h8Q Rg3 h7 Nfg2 Qe8 Rb8 h8N Ra2 Qd7 Rf8 Ng8 Rf1 Qde8 Nc4 Nb3 Qd1 Qf2 Nf4 Na4 Qc1 Qf3 Rh2 Nb2 Nd2 Qe2 Qc2 Nc1 Nfg2 Nf7+
3Q4/3K1nrb/p1Rbn1qN/B1r2qP1/Q1R2PRb/Q1Q1n3/P1P1k3/3r4 b - - 0 1 legal: proof: f4 f5 e4 h5 b4 c5 bxc5 d5 cxd6 g5 Be2 g4 exf5 Bh6 Bf3 Bf8 Na3 gxf3 g4 Bg7 g5 Bh6 Nc4 Bg7 Ne5 Bf8 Ng4 hxg4 Kf2 Kd7 Ke3 Kc6 Kd4 e5+ Ke4 Kc5 h4 b5 h5 b4 h6 g3 d3 b3 h7 b2 f6 b1Q d7 a6 Kf5 Kd4 Ke6 e4 f7 e3 Qe1 e2 Qf1 e1B Nh3 g2 Qg1+ f2 Bd2 Nc6 Ba5 Ke3 d4 Qb5 d5 Qdb6 d6 Nh6 Rb1 Kf3 Rb4 f1N Qd4 g1R Nf2 Rg8 h8Q Ne3 Ng4 Bh4 Rc4 Rd1 Rg1 Ke2 Qhe5 Bb7 d8R Rg7 d7 Bd6 f8Q Nf7 Nh6 Rc8 Rg4 Rc7 Rc8 Ncd8+ Kf6 Ne6 d8Q Rc5 Rc6 Bc8 Qc3 Bd7 Qfe8 Bc8 Qa3 Bb7 Qec3 Ba8 Rc8 Be4 Rc7 Bh7 Rc6 Be5+ Ke7 Bc7 Re4 Bd6+ Kd7 Qd3 Rc4 Qg6 Qa1 Qb3 Q1b2 Qbd3 Qbb3 Qd5 Qh8 Qdf5 Qba4 Rg8 Qhf6 Rg7 Qfc3
nRbr4/1p2Q1RK/2qQN1Q1/PP1bb1P1/1R5n/1Q1n4/2nnP1k1/3bB3 b - - 0 1 legal: proof: f4 a5 b4 d5 c4 e5 fxe5 a4 g3 Bd7 Bg2 Bc5 cxd5 Bc8 Be4 Be7 Bc2 Bf8 Bb3 axb3 h4 Qf6 g4 Qa6 h5 Qd6 Nc3 Qd8 Ne4 Ra6 Nf6+ gxf6 g5 f5 Qc2 f4 Qd1 Rg6 hxg6 Qd7 Ba3 Qe7 Bc1 Qd8 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 h4 a4 c4 d4 c3 a5 c2 g7 f3 d6 b2 b5 b1B d5 f2 Ra2 f1N Qd3 h3 Qg3 h2 Qf2 Na6 Qe3 Nc7 Nf3 Nh6+ Kf4 f5 g8R Bg7 Ra1 Nd2 Rf1 h1B Nd4 Qe8 Qb3 Na8 Ne6 Ba2 Ba3 c1N Rb1 Qg6 Bb4 Nd3+ Kg3 f4+ Kh4 Qe4 Kh5 Nf5+ Kg6 f3 Re8 Rg8 Kh7 f2 Rfc1 f1N Bc3 Nf3 Be1 N3d2 Rc4 Bf6 Rbc1 Bb1 Rb4 Bc2 Rf8 N1e3 Rf7+ Be7 Rg7 Bd1 Rc6 Nc2 Ra6 Nb6 Ra8 Rd8 Rb8 Bg2 Nd4 Na8 e6+ Ke8 d7+ Kf8 d6 Bf6 Qc3 Be5 Qb2 Qc6 Qb3 Re8 d8Q Bd5 Qc7 Rd8 e7+ Ke8 Ne6 Nh4 Rg8+ Kf7 d7 Rf8 d8Q Re8 Qdd6 Rd8 Re8 Bf4 Kh8 Kg6 Rg8+ Kh5 e8Q+ Kg4 Qg6 Kh3 Kh7 Be5 Rg7 Kg2 Qce7
1nkn1N2/2N2Q2/1p1b1P1q/1bpr1nP1/2b1Pr2/3N1R1Q/1Q1qP2K/3NB3 b - - 0 1 legal: proof: h4 b5 c4 g5 cxb5 e5 hxg5 e4 b4 e3 dxe3 Na6 b6 Ne7 b7 Ng6 b8N Ne7 e4 Ng8 a4 f5 g4 Bg7 g6 Nc5 b5 Na6 b6 Bh6 b7 Qh4 Bh3 Qe7 g5 Qd8 Bg4 fxg4 Ra3 Bg7 Rb3 Bf8 Rb6 axb6 Kf1 c5 Kg2 h5 f4 d5 a5 d4 f5 h4 f6 g3 g7 d3 Nd2 h3+ Kf1 h2 Kg2 Rh4 Qc2 Bd7 Ndf3 d2 Nh3 d1B Qd2 Nh6 g8Q Nf5 Qb2 Bb3 Bd2 Bb5 Ne5 B3c4 Rf1 Rf4 Nbd7 Nb8 a6 Ra7 Qh7 Bd6 Nf2 Ra8 Kh3 g2 a7 g1N+ Kg2 Nh3 Nf8 Qd7 Ned3 Kd8 Nd1 Kc7 Rf3 Kd8 Be3 Kc7 Bg1 Kd8 Qf7 h1Q+ Kf1 Qh2 Bf2 Be7 Rg3 Nc6 b8N Ng1 Nb4 Qd2 N8a6 Nf3 Rh3 N3d4 Nc7 Ne6 Rb3 Rb8 a8Q Qh6 Kg2 Rc8 Qaa3 Nb8 Ncd5 Rc7 Be1 Rd7 Nc7 Kc8 Rh3 Rd5 Kh2 Bd6 Qg3 Qh7 Nd3 Nd8 Qh4 Qg7 Rf3 Qh6 Qh3
Q2B4/rbR2P1q/1r1nB3/n1KP1P1k/2Q2qPN/p1bpQB2/1q6/r2B4 b - - 0 1 illegal: No possible last move, all moves rejected
kB3B2/3r1BrQ/P2p3K/b2q1qNP/R2Q1Bpr/rP3Q2/r1b3P1/6n1 b - - 0 1 illegal: No proof kernel
K3NQQ1/6r1/2N3b1/Nk2p1bP/p3rR2/bbn4Q/Pq1P2Pq/1Q3qB1 b - - 0 1 illegal: No proof kernel
4rR2/n1BQqp1Q/2PPn1R1/p7/N1Rpb3/2n4P/n1Q1qP1K/1r1Qk3 b - - 0 1 legal: proof: d4 b5 e4 d5 a4 c5 axb5 g6 dxc5 Bg7 Bf4 Be5 Bc1 Bc7 e5 Bd6 exd6 g5 h3 g4 Nd2 g3 Ndf3 Bf5 Kd2 Bg4 Ke1 Bc8 Bd3 Nd7 Nh2 gxh2 g4 Nb8 g5 h6 Bf5 h5 Bg4 hxg4 Kf1 Kd7 Kg2 Ke6 c4 Ke5 b4 Ke4 b6 e5 b5 a5 b7 d4 b6 g3 c6 Qe7 g6 Nd7 b8R Bb7 c7 Nc5 c8Q Ne6 Bd2 Kd3+ Qc6 e4 c5 e3 g7 e2 Rf8 e1Q Ne2 Rd8 Nc3 Re8 Rc1 Qe2 Rg1 h1N Na4 Ba8 b7 Rh5 Re1 Re5 Kg1 g2 b8Q Ng3 Kh2 g1N Qbc8 Ne4 Rc4 Nc3 Q6d7 Be4 c6 Rg5 Qa6 Na2 Qc1 Re5 Bg5 Rb5 Rf1 Rb1 Qb5 Nf6 g8Q Nd5 Qh7 Nb6 Qbf5 Nc8 Qd1+ Qd2 Qc2+ Ke2 Bh4 Na7 Qfg6 Qg5 Rd1 Qe3 Bd8 Qg5 Bc7 Qe7 Qc1 Qe1 Qc2+ Kf1 Rd3 Ne2 Rg3 Nec3 Qf5 Qe2 Rg6 Ke1 Qf3 Rc1 Qfd3 Rb1 Qdd1+
b1n5/Q1Pn1pN1/r6Q/QR1Rb1Q1/1bK1R3/3ppPk1/P3P3/1n3brB b - - 0 2 legal: proof: d4 a5 b4 c5 dxc5 Qc7 bxa5 Qd8 Na3 g5 Nh3 b5 Ng1 g4 Nb1 Qb6 axb6 g3 f3 h5 Be3 Ra3 Kd2 Ra8 Bf2 gxf2 g3 Nc6 g4 Nb8 g5 Ra5 Nc3 Ra7 Ne4 Ra8 Nf6+ Kd8 Ng4 hxg4 Qe1 Ke8 Qb1 Bh6 Qd1 Bf8 Kc3 d5 h4 Kd7 g6 Ke6 g7 Ke5 c6 Kf4 b7 e5 c7 g3 h5 e4 h6 g2 h7 e3 Nh3+ Kg3 Qd4 g1B Nf4 Ra6 Qa7 Nh6 g8Q+ Bg4 c8Q Be7 Qg5 Nd7 b8R Rg8 h8Q Bh2 Ne6 Nf5 Qhh6 Nd6 Qcc5 Nc8 Bg2 f1B Rd1 d4+ Kb3 b4 c4 Bf8 Qa5 Rg6 c5 d3 c6 Bd6 Kc4 b3 c7 b2 Rb1 Bb4 Rb5 Rg8 Rd5 Rg6 Qgh5 Bf5 Ng7 Be4 Q6g5+ Kf2 Qgh6 Be5 Rh4 Kg3 Bh1 Rg5 Rc1 Rg4 Q5g5 b1N Rc3 Bf8 Rb3 Bb4 Rd4 Ba8 Rh5 Bc3 Rb5 Bb4 Re4 Kf2 Qgf6 Rg1 Rf5 Kg3 Qe7 Bb2 Rfd5 Be5 Qeg5+
2NK1b1b/R1Q1PP2/k1bpNr2/3n4/1r1P3Q/br4Qp/1BNb1Q1P/n6q b - - 0 1 illegal: No proof kernel
1r3N1q/7p/2b1qRP1/k1pbNB1N/p1PbNPq1/3Q2QP/K1n4r/1n2Q3 b - - 0 1 legal: proof: d4 e5 dxe5 f5 e4 b5 a4 Bd6 axb5 Nh6 e6 Ng8 e5 Bf8 Ra4 g5 Re4 fxe4 b4 g4 f3 g3 Be3 Ne7 Bf2 gxf2+ Kd2 Ng8 Kc1 a5 Kb2 c5 g4 d5 c4 d4 b6 e3 h3 d3 g5 e2 e7 Kd7 e8N Kc6 b7 Kb6 e6 e1Q g6 d2 b5 Bg7+ Ka2 Nf6 e7 Be6 Nc3 Nd5 Bd3 f1B Nf6 Bg2 e8Q Na6 Nh5 Bd4 b8N a4 Qe2 d1Q Bf5 Ka5 b6 Rf8 Nd7 Rb8 b7 Bf7 Qf1 Qe6 Ne4 Qdf6 Rh2 Qh8 Qd3 Bh1 Rf2 Nab4+ Ka3 Nc2+ Ka2 Qe2 Qe7 Rfd8 Nf8 Be8 Rf1 Bc6 Qh4 Re8 Qe1+ Nc3+ Kb2 Rbc8 b8Q Qg2 Qe5 Qg4 Q1g3 Nb1+ Ka2 Rb8 Qe1+ Rb4 Q5g3 Rb8 f4 Na1 Nf3 Nc2 Ne5 Bf3 Rf2 Bh1 Rd2 Rb3 Nd6 Bhd5 Ne4 Rc3 Qde2 Re3 Qd3 Re2 Rd1+ Nd2 Rb1 Rh2 Rb4 Nb1 Rb7+ Ka6 Rf7 Kb6 Rf6 Ka6 Nd2 Ka5 Ne4+
5b1n/3N3K/qQQrpb2/5n2/1BRpQ3/N2r2p1/1PQPb1PP/Nrr1k3 b - - 0 1 illegal: Other
1Q3B2/Q1pp2qR/2PP2P1/b1Pr1Q1b/4b2K/1rRk1pN1/1b3np1/1R1n1R2 b - - 0 1 illegal: No proof kernel
N2r4/4RbnK/1bnQ3n/4pR2/RPk1R3/BRq1Pn2/1n1P2rP/3n1R2 b - - 0 1 illegal: No possible last move, all moves rejected
4KB2/1Rp1bP1q/1RB1rQR1/1rPbbn2/1PP2k1b/1B6/r1BB4/3n2r1 b - - 0 1 legal: proof: c4 e5 e4 g5 d4 f5 a4 g4 Nc3 g3 Nd5 Qf6 hxg3 Qh4 g4 Qe7 g5 Qd6 Nf3 Qc5 dxc5 Bh6 Nc3 Bf8 Nd4 exd4 e5 b5 Ne4 fxe4 axb5 Kd8 Rh2 Ke7 Rh1 Ke8 Kd2 Kf7 g4 Ke6 f4 d5 b6 h5 g6 a5 b7 e3+ Kd3 a4 g7 h4 g5 Kf5 e6 a3 e7 e2 e8B e1B g6 h3 Bc6 h2 Qf3 a2 Be2 Rh6 Bd1 Bh4 Rb1 a1B Bb3 Na6 b8B Bfe7 Ba7 Bb7 Bb6 Ra7 Rf1 h1Q Ba5 Ra8 Bad2 Nb4+ Ke2 d3+ Ke3 Ra4 Kd4 Ra2 Qf2 Kg4 Ke5 d4 Ke6 Nc2 Kd7 Ne3 f5 Nd1 f6 Qh2 f7 Qh1 Bc3 d2 Qf6 d3 Ke8 Qe4 Bd4 Qf5 Re1 Kf4 Re6 Ba8 Bh1 Bd5 Rb6 Rh7 Bf3 Nh6 g8R Rh8 g7 Rh7 Qg6 Qe4 Qe6 Nf5 Qf6 Rh6 Bg2 Ne3 Bf3 d1R Bd2 Rg1 Bh1 Kg4 Be5 Nd1 Bd6 Rg6 Rh8 Rh6 g8B Rg6 Bh7 Rh6 B2f4 d2 Rg8+ Rg6 Bh6 Qd3 Bf8 Qh3 Bg3 Qh2 Be1 Kf4 Qc6 Re6 Rg6 Nc3 Rb7 d1R Bg2 Rd3 Bd2+ Rde3 Be4 Nd1 Qa6 Rb6 Bec2 Rb5 Qf6 Bh1 Be4 Bf3 Bc6 Bd5 Rb6 Nc3 Rg8 Bg5 Bc2 Nd1 Ba4 Ra5 Bg6 Qh7 Rb7 Bh4 Bb4 Re6 Bd2+ Kg4 b3 Ng3 Bf5+ Kf3 Rg6 Be5 Bc2+ Nf5 Ra1 Rb5 b4 Ra3 Bab3 Ra7 Ra6 Ra8+ Kd7 Ra7 Rab6 Ra2 Be1 Ke3 Ke8 Kf4 Bd2+
4R3/1P2n1qq/N1b1Pp1p/4RPrk/RB3q2/1NK5/rnP1r1N1/r1R2R2 b - - 0 1 legal: proof: d4 e5 a4 c5 dxc5 g5 Qd2 b5 axb5 g4 Qd4 exd4 f4 Bd6 h4 Kf8 g3 Ne7 Bg2 Qc7 Bf3 gxf3 g4 Ng8 g5 Be7 g6 Bg5 hxg5 Ke8 Ra5 Qb6 Ra1 Qd8 Kd2 d5 b4 a5 e4 f6 c6 h6 b6 d3 g7 Kf7 b7 Kg6 c7 a4 e5 f2 b5 f1Q b6 a3 e6 a2 Rh4 d4 Rg4 Nd7 b8N Qe7 f5+ Kh5 b7 Nc5 g6 Bd7 c8R Na4 Nh3 Nb2 Rc5 Bc6 Re5 Qc7 Rg1 Ne7 Na6 Rhg8 Rh1 Qf3 Rf1 Qe4 Nc3 Qg4 Na4 Qb8 Rb1 a1R N4c5 Qf8 Nb3 Qf4+ Ke1 Ra2 Bd2 Qf7 Bb4 d2+ Ke2 d1R Rc1 Rd3 Ke1 Re3+ Kd2 d3 Kc3 Re4 Rcd1 d2 Rc1 Rgc8 g8R d1Q g7 Re2 Re8 Qd7 g8R Qh7 Rg4 Ra1 Nc7 R8a2 Na6 Rb8 Ng5 Ra8 Nf3 Qc7 Nh4 Rc8 Rh8 Rg8 Ng2 Rg5 Rc8 Ng6 Rh8 Qcg7 Re8 Ne7 Bd6 Qf2 Ra4 Qf4 Bb4
n6b/4nP2/4R2k/KP2BPp1/2R2pQ1/pbRBn1Pr/2Rn1Bn1/1R1q4 b - - 0 1 illegal: No proof kernel
4K3/b1kNNBB1/qpPp3B/3N1rr1/3nq1N1/2n1PrrR/1P1PN3/q2b4 b - - 0 1 illegal: Other
2QN1b1K/1b1Rp2p/3PqR1P/2p3kR/rRP1B1p1/1b2RRr1/q3n1P1/4b3 b - - 0 1 legal: proof: c4 d5 b4 a5 bxa5 d4 e4 Be6 Bb2 Bc8 Bc3 dxc3 d4 f5 e5 Na6 d5 Nc5 Nd2 Ne4 Nb1 Ra6 Nd2 Nd6 exd6 Ra8 Ne4 fxe4 Ke2 Kf7 Ke3 Kg6 Kf4 b5 h4 c5 a4 b4 h5+ Kf6 d7 g6 a6 b3 a5 e3 d6 b2 a7 b1B a6 c2 Ra4 c1Q Ne2 Be4 Nd4 Bd3 Rb4 Qc3 Nc6 Qa5 d8R e2 Rd7 e1B Nd8 Qc2 Qg4 Rb8 a8R Qb6 a7 Be4 Bd3 Bc6 Be4 Qb5 h6 Qa5 Rh5 Qaa2 f3 Rb5 Rb8 B8b7 a8R Qe2 Ra3 Ra5 Re3 Ba4 Rbb3 Bc8 R8b4 Bb7 Qh3 g5+ Kg4 Qd3 f4 Qd5 f5 Ra7 Rbd3 Bb3 Rf3 Ra4 Rde3 Ke5 f6 Qf7 Rf1 Qd5 f7 Nf6+ Kf3 Rg8 Qg4 Bg7 f8R Qe6 Rf2 Nd5 Rf6 Nc3 Qh3 Qf7 Kg4 Bf8 R2f4 Ne2 Rff3 Kd4 Kf5 Qg6+ Ke6 Qf5+ Kf7 Ke5 Rg3 Kf4 Qh2 Rg6 Rgf3+ Kg4 Qe5 Rg8 Qd5 Qe5 Qc6 Qe6+ Ke8 Rg7 Qc8 Rf7 Rg6 Rf5 Rf6 Rf4 Rf2 Rf3 Rf1 Rg3 R1f2 Qf5 Kf7 Qe5 Kg8 Qf5 Bf3+ Kf4 Kh8 g4 Rh4 Kg5 Be4 Qd5 R2f3 Qe6 Rh5+
1NQRq3/1QK1N2q/N1b2kRP/4nN1P/1q1r1r2/2P3PN/6b1/4qnbq b - - 0 1 illegal: No proof kernel
3r4/KN1N2p1/b2Pq2n/n1r2p1b/qB2NP1r/1k3PN1/1bB3PN/Q1q2Q2 b - - 0 1 illegal: No proof kernel
r1RN3Q/bR1K4/1RRPQP2/n5rr/1b5b/3r2P1/Pr5N/1b1Qn2k b - - 0 1 legal: proof: c4 b5 b4 h5 e4 d5 cxd5 a5 bxa5 g5 f4 h4 f5 h3 g3 f6 Bg2 Qd6 Ba3 Qb6 axb6 hxg2 Bd6 Kd7 e5 Kd8 exf6 Ke8 Bf4 gxf4 Kf2 Kd7 Kf3 Kd6 Kg4 Ke5 h4 Ke4 d4 c5 b7 e5 f7 f3 h5 b4 d6 c4 h6 b3 d5 f2 d7 f1R d8Q b2 d6 c3 h7 c2 Nh3 c1R Na3 b1R Qe7 g1B Nc4 Rb2 Qb3 Nh6+ Kg5 Ba7 Kf6 Rf3 Ne3 Nc6 b8R Rc5 Qbe6 Na5 Ng2 Rd3 Rb6 Kf3 Rab1 e4 Rhc1 e3 Ngf4 e2 Nf2 e1B Ng4 Bb4 Nh2+ Kf2 Qc7 Bg7+ Ke7 Ng4 f8R Ne3 Qcd7 Ng2 Qa4 Ne1 Qd1 Kg1 f6 Bh6 Rc3 Rg5 Rcc6 Kh1 Rg8 Ba6 Kd7 Bc4 Rd8 Bb3 Rdb8 Bc2 Rc1 Bb1 R8b7 Rg4 Rc8 Bg5 R1c4 Bh4 R4c6 Rhg8 h8Q R4g5 Qf7 Rb5 Ne6 Rh5 Nd8 Rgg5 Qe6
2k4B/7Q/q2P1K1B/nR3b2/pb1r3Q/3PPr1Q/1QbRP1q1/q4Br1 b - - 0 1 legal: proof: b4 a5 c4 e5 a3 d5 cxd5 e4 a4 b5 axb5 a4 Nh3 e3 fxe3 Nc6 Ng1 Na5 bxa5 g5 g4 Qd6 Nh3 Qd8 Nf4 h6 Nc3 gxf4 Ne4 h5 g5 Ra7 Nf2 Ra8 Ng4 hxg4 Bh3 Kd7 Kf2 f5 a6 c5 b6 f3 Kg3 c4 Kf4 c3 Ke5 f2 a7 f1R b7 c2 b8Q g3 g6 g2 g7 g1Q Ba3 c1Q Rb1 Qa5 Qe1 Ne7 g8Q Qa6 d3 Rh4 Bg2 Rd4 h4 f4 h5 f3 h6 f2 h7 Nc6+ Kf6 Na5+ Rb6 Bc5 h8B Qa1 Qh7+ Kd8 Qg3 Bf5 Qgh3 Bd6 Rb3 Rb8 a8Q Kc8 Qaa7 Rb7 Bc5 Rg7 Qb6 Rg3 Qbb4 Rf3 Qbd2 Qh2 Rb5 Bf8+ Bd6 Be6+ Bf4 Bb4 d6 Qg3 Q3h6 Bb3 Qb2 Bc2 Qh3+ Qg4 Qd2 Rc1 Rd1 Rb1 Qe1 f1B Rd2 Rd1 Qeh4 Rc1 Q3g3 Qg8 Bh1 Bh3 Bg2 Bf5 Bh6 Rg1 Bf1 Qg4 Qgh2 Qg2 Q2h3
Q1N2N1k/1qb5/pn4P1/2QQ1rpb/3P1N2/1KPN4/2nP4/b1R1r1Rn b - - 0 1 legal: proof: a3 b5 a4 f5 axb5 d5 e4 c5 exf5 c4 f6 c3 bxc3 d4 Bd3 g6 Bf1 d3 cxd3 Qc7 Qg4 Qb6 Qd1 Qd8 f4 Nc6 g4 Be6 g5 Bh3 f5 Kd7 f7 Nb8 f6 Bf5 Bh3 Bg4 Ba3 Be6 Bf5 gxf5 g6 h6 Bc5 Bg7 Be3 Bf8 Bg5 hxg5 Ke2 Bd5 Kf2 Bb7 Ke1 Bc8 h4 Ke6 d4 f4 h5 f3 b6 a6 h6 f2+ Ke2 f1N Kd3 Ne3 b7 Qd5 h7 Nd7 b8Q Nh6 Ra4 Nhg4 Qb4 Nb6 Qe1 Qb7 Qg3 Nc2 Ra1 Bd7 Qa3 Re8 Qf3 Bc6 Qg2 Bf3 Ne2 Kf5 Qa2 e5 Nf4 Ba3 f8N Bb2 f7 Kf6 Rc1 Kg7 Na3 Bd1 Rab1 Ba1 Nb5 Re6 Nd7 Rf8 Na7 Kh8 Qgd5 Bf3 Nc8 Re7 Qaa5 Be2+ Ke4 Nf2+ Kf5 e4 Nc5 e3 Ncd3 Ree8 Qac5 Nh1 Rg1 Bd1 Rc1 e2 Kf6 e1B Kf5 Rg8 f8N Bg3 Kf6 Re1 Kf5 Be2 Ke6 Rg7 Ke5 Rf7 Ke6 Rf5 Kd6 Kg7 Ke6 Bh5+ Kd6 Kf6 h8Q+ Qg7 Qhg8 Qa7 Qa8 Qb7 Qgd5 Kg7 Qa3 Ne3 Kc5 Kh8 Kb4 Nc2+ Kb3 Bh2 Qac5 Bg3 N4e6 Bc7 Nef4
Q6N/Q1b1nNPK/3r2P1/1NnPr2P/1ppq1k2/5Q1n/nn1B4/1N1B4 b - - 0 1 illegal: No possible last move
2r5/NQPq1Bn1/p3r3/1BQ5/BPPBp3/1r3kn1/1n1KN1Pn/1Nn5 b - - 0 1 illegal: Other
2qr3b/nrP1k2P/1rQ3b1/1qB1P3/1n2B3/1PQ1rb1N/1K1NB3/2Nq3B b - - 0 1 legal: proof: d4 b5 h4 g5 a4 c5 axb5 e5 dxc5 h5 g4 Bd6 f4 Qe7 Ra4 Qd8 Rh2 Bf8 Rg2 Qb6 fxe5 Qf6 Rf4 gxf4 g5 Qd8 Rg4 hxg4 Kd2 d5 Kc3 f5 e4 a5 g6 a4 g7 g3 c6 g2 c7 a3 b6 f3 b3 f4 e6 f2 h5 a2 e5 a1R b7 d4+ Kb2 f3 c4 d3 c5 d2 c6 Rh7 e7 Nf6 g8B R1a6 h6 Nd5 Nh3 g1R Qe2 d1B Nd2 Rg3 Qc4 Bg7 Be2 f1Q Qc3 Bf5 c8B Nb4 Bd5 f2 Bh1 Bg6 Bf5 Bh8 Bfe4 Rf7 h7 Rb6 B2f3 Qc8 Be2 Re3 c7 N8c6 b8N Rf6 Na6 Rb7 Nc5 Na7 Nd3 Rfb6 Ka3 Qe1 Bb2 f1Q Nc1 Kf7 Ba1 Ke6 Kb2 Kf7 Ba6 Bf3 Be2 Qd1 e8Q+ Kg7 Qe6 Kf8 Qec6 Ke7 Ba6 Qc4 Bb5 Qc5 Be2 Qb5 Q3c4 Qg1 Ka3 Qd8 Bd4 Qd1 Kb2 Qd7 Qc2 Rd8 Q2c3 Qc8 Bc5+
5bn1/P3R1q1/KR1Qbr1P/B2rn3/3n1knn/B2P1P2/B5QB/Qn2q3 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 g5 c4 f5 exf5 g4 cxd5 g3 f3 Bh6 Nh3 Bg7 Ng1 Bf8 Nc3 h6 Nh3 Be6 Nf2 gxf2+ Ke2 Bf7 g4 Be6 Ne4 Bc8 g5 h5 Nf6+ Kf7 Ng4 hxg4 Qb3 Ke8 Qa4+ Bd7 Qd1 Bc8 Kd3 Kf7 Kc4 b5+ Kb4 e5+ d6 e4 h4 e3 a4 e2 a6 e1N Ka5 g3 f6 Ke6 f7 Kf5 a7 b4 h5 c5+ Kb5 c4 a5 b3 a6 b2 g6 b1N h6 c3 d7 g2 g7 g1N Bc4 f1N Ba3 c2 Ba2 Qe7 d8B c1Q Ba5 Ne2 Rh5+ Kf4 Re5 Qf6 Re7 Ne3 Bc5 Ng4 Bg1 Ng2 d3 Nd2 Rb1 Nd7 Qf1 Nh4 Qg2 Qe1 Qh2+ Kf5 Qd6 Nde5 Kb6 Bd7 Rb3 Rd8 a8Q Qg5 a7 Nd4 Ka6 Kf4 Rb6 Bf5 Qac6 Rh7 Qc1 Be6 Qc3 Nb1 Qa1 N8f6 g8Q Qg7 Qc5 Rd5 Qd6 Qh8 Qg7 Ng8 Qg6 Nh2 Qg2 Ng4 Qd8 Rg7 Qd6 Rg6 Rc7 Be7 f8B Qg7 Rcb7 Bd8 Re7 Rf6 Rbb7 Bb6 Rb8 Bc5 Rb6 Ba3 Reb7 Ne2 Qd7 Bb2 Qc6 Bd4 Ba3 Bc5 Qc7 Bf8 Qd6 Nd4 Rd7 Qb4 Re7 Qe1 Bh2+
1qnn4/P2KQ1n1/P3Nbkr/p3b2n/2b1q1PN/P7/1N3NQQ/r4R1R b - - 0 1 illegal: No proof kernel
R1r3rq/BQ2Q1Pp/nbb5/B1P2B1R/1nK3kP/1r2R1r1/4P3/rB4r1 b - - 0 1 legal: proof: d4 b5 g4 c5 b4 e5 dxe5 f5 bxc5 b4 g5 b3 axb3 Nh6 b4 Ng8 b5 Be7 Ra2 Bd6 Ra1 Bf8 f4 g6 Nh3 Bd6 Nf2 Bf8 Ng4 Be7 Nd2 Bf8 Nf3 Qe7 Nd4 fxg4 f5 Qd8 f6 Qe7 Nf5 gxf5 Ba3 Qd8 Bb2 Qe7 Bc1 Qd8 Kd2 Kf7 Kd3 Kg6 h4 Kh5 c4 d5 e6 a5 e7 a4 e8R g3 c6 g2 c7 g1R b6 a3 f7 d4 g6 f4 g7 a2 b7 f3 Bd2 f2 Bc3 Rg3+ Re3 Nf6 Bg2 f1R Bb2 Rff3 Qb1 Bd7 c8B Na6 b8B Bc6 Rf1 Bc5 f8Q Nd5 Bc3 Rg8 Qb7 Bb6 c5 Ndb4+ Kc4 d3 Ba7 d2 Qfe7 d1R Bf5 Rc8 Bb1 Kg4 Bh3+ Kh5 Rf2 Rdg1 Bhf5 Qf8 Re5 Re3 Rf3 Rd3 Be1 Rb3 Rfe3 Qd8 Bg6+ Kg4 Rh5 Nd3 Ba5 Ndb4 Bbf5+ Kf4 Rd1 a1R Rd2 Qe8 Ra2 Qf8 Bb1 Kg4 Bgf5+ Kf4 Qe6 Nc7 Bb8 Rh8 Qe7 Qd8 Bg6 Kg4 Ra3 Nbd5 Bb4 Rf8 Ra8 Na6 Ba5 Ndb4 Bc7 Rf6 Bgc2 Qh8 Bb8 Rff8 Ba7 Rg8 Bf5+
2n5/1QBr2rQ/B4rp1/1qN1K3/2B1PPPn/3QPp2/1Qn1kq2/1Nbb4 b - - 0 1 illegal: No possible last move, all moves rejected
bB1b1k2/1bP5/1NrnPQ2/1bN2pKp/2Nn4/5B1P/1r2PQ1N/q2b1Q2 b - - 0 1 legal: proof: d4 a5 f4 b5 a4 e5 axb5 c5 fxe5 Nh6 dxc5 Bb7 b4 Ng8 b6 Ba6 b5 Bc8 g4 g5 h3 Ne7 Ra4 Nd5 Bg2 Ke7 Rf4 Nf6 Be4 Ng8 Bd3 Ke8 Rb4 axb4 Rh2 Ra2 Rf2 Ra8 Rf4 gxf4 Kd2 d5 c4 f5 g5 h5 b7 b3 c6 d4 g6 f3 c7 f2 c5 f1B c6 b2 e6 Qd7 b6 Ra7 g7 Ra4 Be4 d3 Ke3 d2 Kf4 Ra8 Nf3 Ra6 Kg5 Bg2 Nh2 Qd4 Qf1 d1B Bf3 Ne7 Nd2 b1B g8Q Bd3 Qg7 Qa1 Qf6 Bb5 Nc4 Ra2 Bf4 Rb2 Qd4 Bg7 Qdf2 Kf8 Bg3 Bc3 Bf4 Ba5 Bd6 Nd7 b8N Nf6 b7 Ne8 Na6 Rh7 b8Q Bb7 c8N Bd8 Bc7 Nd6 Nc5 Bh1 Qa7 Ba8 Bb8 Rg7+ Kf4 Rg3 c7 Nc6 Qa3 Nd4 N8b6 Bg2 Qae3 Bb7 Qe5 Bh1 Bd5 Rc3 Bf3 Ba8 Bg4 Bhd5 Bf3 Bdb7 Qf6+ Nf7 Ne3 Kg8 Na6 Rc6 Nec4 Nd6 Nc5 B5a6 Qg6+ Kf8 Qg5 Bb5 Qg6 Ke7 Kg5 Kf8+ Qf6+
2k1r3/1P2R1b1/BpPrrbQp/5PBq/R1n5/1PBnr2B/1Q6/1Q1n1K2 b - - 0 1 illegal: No possible last move
1b2R1qn/7b/3R3q/1p1Bbn2/k2P1P2/R1P3p1/1RbKQ1Pn/1QQ1B2r b - - 0 1 legal: proof: h4 c5 e4 b5 b4 a5 bxa5 d5 c3 f5 exf5 g5 Nf3 g4 Na3 d4 Ne5 d3 Nc2 dxc2 Nc6 Ra6 Nb4 cxb4 Bd3 Rg6 Bf1 Rg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 d4 Kd7 a4 Kc6 g6 e5 a6 h5 a5 h4 g7 g3 f3 h3 f6 h2 a7 b3 a8R b2 f7 b1B a6 e4 a7 e3 Ba3 c1B Bd3 e2 Bc4 Bd6 f8Q Nh6 g8R Bc2 Rb1 Nf5 Rb4 Nd7 Qh6 Bf4 Rg6 Qg8 Rb3 Nf8 Bc1 Kb6 Bd5 Ka5 Bd2 Ka4 Qb1 Bb8 Rd6 Be5 f4 Be6 Qh5 Ng6 Rf1 Rh7 Rf2 Nh8 Qf3 Bf7 Qe4 Bg6 Qd3 Bc7 Re8 Bb8 Qe4 Rh4 Qe3 Bh7 a8Q+ Ba7 Qc8 Bb8 Qe6 Rh5 Bc1 h1Q+ Kd2 e1N Qe2 Bg7 Q6e3 Be5 Qd1 Rh6 Ke2 Rh4 Bd2 Nf3 Be1 Be4 Qdc1 Qh3 Kd1 Rh5 Rfb2 Bc2+ Ke2 Qh4 Qed2 Qf6 Qe3 Rh1 Qf2 Nh2 Kd2 Qfg5 Qe2 Qh6 Ra3+
3RB2K/1Qr1qqp1/1p1Qrn1k/P1P2q2/1P1R2rR/8/3brRP1/B2Q1b2 b - - 1 2 illegal: No possible last move, all moves rejected
q1rr1R1r/1pr1Np1P/8/1P1N3b/1RN1k2P/p6P/1Q5Q/1nK1bqRN b - - 0 1 illegal: No proof kernel
n5B1/p5q1/bRKbp1kp/P1nnPR1b/4PP2/3B1R2/7B/2QqnR1Q b - - 0 1 legal: proof: b4 c5 bxc5 b5 e4 f5 Ke2 f4 Ke1 Na6 d3 Rb8 d4 Rb6 Qd2 Re6 Qd1 Re5 dxe5 Qc7 Be3 Qb6 Bc1 Qd8 Nd2 g5 Nc4 g4 Ne3 fxe3 f4 Nh6 Nf3 gxf3 Qd6 Ng8 Qd4 Nb4 Qd1 Na6 h4 h6 g4 Nb4 h5 Na6 g5 Rh7 Rh3 Rg7 Rh1 Rg6 hxg6 Qc7 Rb1 Qb6 Ra1 Qd8 c4 d5 a4 e6 g7 Kf7 g6+ Ke7 a5 f2+ Ke2 b4 Kd3 d4 c6 b3 c5 e2 Kc4 e1N Kb5 b2 c7 b1Q+ Kc6 d3 Be3 d2 Rh3 Nf6 g8R Nd7 g7 Kf7 Bd3 f1B Bg1 Be2 Bh2 Bh5 Rf3 Bd6 Rf8+ Kg6 g8B Qg5 Rf5 Nb6 Qc1 Qc2 Rb1 Na8 Rb6 d1N Rf1 Ng2 Rf3 Nde3 Qh1 Qg3 Kb5 Kg7 c6 Bb7 c8Q Nd5 c7 Qg5 Be2 Qf6 Bd3 Kg6 Qe8+ Qf7 Qc6 Qg7 c8R Qd2 Qc3 Qc1 Rc4 Nc5 Qb2 Qg1 Rc1 Ba6+ Kc6 Qf1 Re1 Qe2 Qc3 Qd1 Ref1 Ne1 Qc1
1B3B2/RRbq4/1r1p2n1/QB1P2bR/QK5b/1np3Pr/2Pb1k1P/1b2nR2 b - - 0 1 legal: proof: e4 h5 a4 g5 f4 b5 axb5 f6 e5 h4 Ne2 h3 f5 Bg7 Nf4 Bh6 Nc3 Bf8 Ncd5 Kf7 Ne3 Ke8 exf6 gxf4 g3 Kf7 Ng2 hxg2 Bd3 Ke8 Bc4 Rh7 Bf1 Rh8 b4 Kf7 d4 g1B Kd2 c5 Kc3 e5 b6 a5 b7 a4 b5 f3 b6 e4 Kc4 a3 Bh3 e3 Qd2 a2 Qc3 d6 Qb4 f2 Kb3 f1N Ba3 e2 Bb2 e1B Qc3 c4+ Kb4 Ne3 Rb1 a1B Rd1 Be6 Bg2 Ra6 Bh3 Ng2 Qd2 Ne7 Rb1 Bh6 Bc1 Nd7 b8Q Ng6 b7 Nc5 Qa7 Bg5 b8B+ Qd7 Qc3 Rc6 Qa4 Nb3 Bb2 B1e3 Rf1 B3d2 Bg4 Rh3 Be2 Bf2 Bc1 Ne1 Rb2 Kg8 f7+ Kg7 f8R Kh6 f6 Bd5 Bd3 Kh5 f7 Kg4 Rh8 Kf3 f8R+ Ke3 Rf7 Rb6+ Ka3 Bh4 Qca5 c3 Ra2 Be6 Bb5 Bb2+ Kb4 Bc4 Rh1 Bg1 Rg7 Kf2 d5 Bdg5 Bf4 Bc1 Rh5 Bd2 Ra1 Nc1 Be5 Ba2 Re7 Nb3 Bg7 Bb1 Bf8 Kg2 Reh7 B1e3 Rf1 Bd8 Rff7 Beg5 Re7 Kf2 Rhg7 Qe8 Ra7 Qc6 Rgb7 Qd7 Ra6 Bc7 Raa7 Ba2 Rc1 Bb1 Rd1 Ng2 Rg1 Ne1 Rf1+
Nq1n3k/Q2NQpn1/3pR2n/1p1P2R1/4K1PQ/4nr2/Nr1P1Pb1/1N2bn2 b - - 0 1 illegal: No proof kernel
Q6B/1np2k1Q/2Q1p2P/Q1P2q1p/n3P2p/RBr4P/n2K2bR/1rB1rq2 b - - 0 1 illegal: No proof kernel
2Q3K1/2PrNr2/1bn4R/2NR4/Pb1Nnr1R/qP2k3/4N2P/4nqRb b - - 0 1 legal: proof: c4 b5 d4 h5 g4 a5 cxb5 f5 gxh5 d5 e4 c5 exf5 a4 b3 a3 Bb2 axb2 Bc4 dxc4 dxc5 Qd2+ Kf1 Qd3+ Ke1 Qd8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 Kg6 e5 Kf7 g5 a4 c3 f4 g4 h6 g3 c6 g2 h7 c2 c7 c1Q f6 Bb7 f5 Bc8 b6 Ra6 b7 Bd7 Qg4+ Ke3 Nc3 b1R Nf3 g1B Nd4 e4 Nce2 Nc6 b8R Qa3 Rb4 Rf1 Rd1 Rf4 Rb6 Bf2 Rhg1 Bb4 Kg7 Qa8 f7 Nf6 f8N Be8 Ng6 Rf8 Ne7 Rf7+ Kh8 Ra5 Qg8 Rd5 Qf8 Bd7 Qc8 Qa6 Rd2 Be8 Rdd1 Rd7 Rd2 Nd5 f6 Nc3 Kg8 Qd3 h8R Qb1 Qd8 Qf1 Rh4 Ne5 Ne6 Kf3 Kh8 e3 Rd1 Rh7+ Kg8 Bh5 f7 Ne4 f8N Rhf7 Nc3 e2 Qc8 e1N Ne2 Be3 Rbd6 Bb6 Nc5 Ke3 Nfe6 Bf3 R1d5 Nc6 N6d4 Bh1 Rdh6
6n1/1K6/PpRr1b1B/1P1pR1B1/3q1q1B/1PR1RB1k/P2q1b2/4Nbr1 b - - 0 1 illegal: No proof kernel
r4r1B/rRp4n/1p1Q1rR1/b1R1PBP1/kBPKp3/5RP1/3p3p/B7 b - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 e4 Nd2 Qe7 Nb1 Qe5 dxe5 d5 Kd2 d4 Ba3 d3 Ke3 d2 Bc1 Be6 Bb2 Bc4 Bc1 Bd3 exd3 Kd8 Ke2 Ke8 f4 f5 Nc3 e3 Ne4 Nd7 g3 Ndf6 h3 Ng4 hxg4 fxe4 f5 g6 Nh3 g5 Nf4 gxf4 c4 Kd7 a4 Kc6 f6 h5 f7 h4 a6 h3 a7 b6 g5 h2 a5 Bb4 f8B Rh4 a6 Bd6 d4 Rg4 d5+ Kc5 Qb3 Rb8 a8R Rb7 a7 Rb8 Bh3 Nf6 Bb2 Ne8 Qd3 Kb4 Rhf1 Rd8 Rb8 Bc5 a8R Nf6 d6 Rh4 d7 Nh7 Qd6 Rh6 R1a5 Rf6 Ba1 Kb3 Be6 Bb4 Rc5 Ba5 Rb7 Ka4 Bf5 Rb8 d8B f3+ Kd1 f2 Kc2 e2 Bde7 e1R Bg7 Rd1 Bh8 Rb1 Bf8 Rb4 Kc3 Rb2+ Kd4 Ra2 Be7 Rbf8 Rd8 Rg8 Rd7 Ra8 Rd8 Ra7 Rg8 Rf8 Rg6 Raa8 Rb1 f1R Rb3 Ra7 Bh3 R1f6 Bf5 Ra3 Rf3 Rfa8 Rf2 Rf3 Rf1 Rf4 Rf3 Rff8 Bh3 R4f7 Bf5 Rf6 Rd5 R6f7 Qf6 Rg8 Bb4 Rgf8 Qd6 Rf6 Rc5
3r4/1pBpPPb1/6B1/n4R1K/3r1RPP/1R1B2Rk/3qbn1r/B1nnQ3 b - - 0 1 illegal: No proof kernel forced: wxLB
1R6/BNN3p1/pn1B2N1/2rpr1Pq/P1bn1K1b/PnN2B2/1P5k/1n5B b - - 0 1 legal: proof: g4 h5 d4 b5 g5 e5 dxe5 b4 Qd4 b3 cxb3 Qf6 Qg4 hxg4 e4 Nc6 e6 Ba3 e5 Be7 Be3 Kf8 Bc5 Nb8 Nd2 Ke8 Ba3 Bf8 Rc1 Qe7 Rc4 Qb4 Re4 Qa4 bxa4 f5 Nb3 fxe4 Kd2 c5 Ke3 Ke7 f4 d5 h4 g3 h5 g2 f5 Ba6 h6 Nd7 h7 Ngf6 Rh4 Rc8 Bb4 Nb6 a3 Bc4 Ne2 g1Q+ Kf4 e3 Bg2 a6 Ba5 Qh1 Ng3 e2 Rh6 e1N Ne2 Nc2 Nc3 Qh5 Bh1 Nd4 Bb4 Rg8 h8N Ne4 Na5 Nd2 Nb7 Nb1 Rh7 Bb5 Ba5 c4 Rh6 Rc5 f6+ Ke8 e7 Kd7 e8N Ke6 Bb4 Bd6 Ng6 Bc7 f7 Bb8 Na2 c3 f8B c2 Nc3 c1N Bd6 Bc4 Rh8 Ncb3 Ba5 Kd7 Nc7 Re8 e6+ Kc6 e7 Kd7 N7b5 Ke6 Ke3 Kf5 Nc7 Kg4 Rf8 Kh3 Kf4 Na8 Bb6 Kh2 Ba7 Nb6 Rh8 Rc8 e8B Rd8 Bf7 Re8 Rg8 Re1 Be6 Re5 Bg4 Kg1 Bf8 Re7 Kg3 Qh8 Bgf3 Qh7 Kg4 Kh2 Ne6 Bg3 Nc7 Bh4 Kf4 Re5 Bd6 Qh5 Rb8
3b4/q2B1BpK/6PB/PpnP3b/1N1qpn1r/1QPB4/1N2p2p/1N1Nk3 b - - 0 1 illegal: No proof kernel
br5R/3RBPk1/Br1ppr1q/B5R1/2P5/R1NPrn2/bb2P3/3Kn1qB b - - 0 1 legal: proof: h4 b5 b4 c5 a4 g5 hxg5 Bh6 axb5 Nc6 c3 Bf8 b6 Nb8 b5 Bg7 Nh3 Bh6 Ng1 Bf8 g4 f5 g6 Bg7 g5 Qc7 Na3 Bf8 Qa4 Qd8 Qg4 fxg4 Nc2 Qc7 Nb4 cxb4 Rh6 Qd8 Rh3 Nf6 Rh1 Ng8 f4 a5 g7 Kf7 b7 h5 d3 d6 f5 a4 b6 h4 f6 g3 Kd2 a3 Kc2 g2 Nh3 g1Q Rh2 b3+ Kd2 b2 Bg2 b1R Nf4 h3 Bf1 a2 Kd1 Be6 Ng2 Nc6 b8B Nb4 b7 Nh6 g8R Nc2 Bc7 Ng4 b8R Ne1 Nf4 Bg7 Nd5 Ne5 Ba5 Rb6 Rb7 Rb8 Rd7 Qf8 Bg2 N5f3 Bh1 Re8 Rg2 h2 Rg3 Rh3 Rh8 Reb8 Rg4 Nd2 Rg2 Re3 Rg3 Ndf3 g6+ Ke8 Rg5 Bf7 Rb1 a1R Rb3 Ra4 Ra3 Rf4 Rh3 Bh8 g7 Rf5 g8B Qh6 Rh4 Be6 Bf7+ Kf8 Be8 Bg7 f7 Rf6 Rh3 Re5 Bf4 Re3 Bg3 Bh8 Bh4 Bg7 Nb4 Bc4 Nd5 Ba2 c4 e6 Nc3 Bh8 Rc7 Bg7 Bb5 Bh8 Rd7 Bg7 Bg2 h1B Ba6 Rg6 Nb5 Bb2 Nc3 Rf6 Rh5 Rg6 Be7+ Kg7 Rb5 Rf6 Rhh5 Qg5 Rh8 Qh6 Rg5+ Qg6 Rgh5 Qh6 Bh3 Ne5 Bf5 Bc6 Be4 Ba8 Bh1 N5f3 Rg5+
1B1N3n/8/q1qn1b2/NQpB4/Ppp1nkr1/Pr3q2/1PP1B1b1/NK3N1B b - - 0 1 illegal: Other
2q2R2/1pBN1p1r/N3p1b1/qrr1PN1B/p1B2PB1/1P3p1P/8/K1bn1Nk1 b - - 0 1 illegal: No proof kernel
2Q5/2B1R2k/p1Knr3/1P1Prb1p/2pNP1rN/3B1P1P/2Rr1R2/3q2q1 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 f5 d4 e5 g4 Bc5 bxc5 fxg4 c4 Nd7 cxd5 Nb6 cxb6 exd4 Kd2 Kf7 Kd3 Kg6 Ke4 h5 f3 c5 b7 a6 b8R d3 e3 d2 h3 g3 Be2 c4 Rh2 g2 Bd3 Bf5+ Ke5 Kh7 e4 g5 Ne2 g1Q Na3 g4 Ng3 Nf6 Ra2 Qdb6 Rc2 Qbd4+ Kd6 Ne8+ Kc6 Nd6 Rf2 Re8 Qe1 d1R Qc3 Ra7 Bf4 Re5 Re8 Rd2 Qb4 Re6 Qc5 Rae7 Be5 Qda1 Bf4 Qad1 Be5 Bg6 Nf5 g3 Nh4 g2 Bh2 Bf5 Bg3 Nf7+ Bd6 Re5 Bc7 R5e6+ Qd6 Re5 Qd7 Nd6 Qc8 R7e6 Ra2 Qge1 Nc2 g1R Nd4 Rg4 Rc2 Qg1 Re7+
1Qn1Rk2/2P5/q2b4/2P1n3/1P1NR2N/bPp3Pb/5qnB/KBrNn1n1 b - - 0 1 legal: proof: e4 a5 b4 b5 h4 g5 d4 gxh4 c4 f5 exf5 Ra6 c5 Rg6 Qe2 c6 d5 Rg4 dxc6 Rg3 Qc4 Rb3 axb3 bxc4 Kd2 h5 Kc2 d5 Kb2 e5 f4 a4 g3 h3 c7 a3+ Ka2 h4 f6 h2 f5 d4 Be3 h3 Bh6 c3 Bc4 e4 Bg7 e3 Nf3 e2 Rc1 e1N Bh6 h1Q Ne5 d3 Rd1 h2 Ba6 d2 Be3 Qb7 Bd4 h1N Ng4 Bd6 f7+ Kf8 Bg1 Nf2 Bh2 Qf6 Ne3 Nc6 Bd3 Qa6 Rc1 d1N Nd2 Rh6 Bb1 Ne5 Nf3 Ne7 Nd4 Nh3 Rc2 Ng1 Re2 Nf2 Nd1 Nfg4 Re4 Ne3 Rg4 N3g2 Re4 Kg7 f8N Be6 Re2 Nc8 Ng6 Rh8 Nh4 Kf8 Re4 Qf7 f6 Bh3 Bd3 Rh5 Kb1 Rf5 Ra2 Rf1 Rae2 a2+ Kc1 a1B Kb1 Qe6 f7 Bb2 Bc2 Ba3 Ka1 Qf6 Bb1 Rf2 R2e3 Rc2 Re2 Rc1 R2e3 Kg7 Re2 Qf2 f8Q+ Kh7 Qe8 Kg7 Qb5 Kf8 Qb8 Nf7 Re7 Ne5 Re4 Qc4 Re6 Qa6 Re8+
2b1k3/2np1bpK/P1bb2N1/P1PQR1N1/1q2B1P1/5b1R/r1BP3n/3N2n1 b - - 0 1 legal: proof: e4 c5 b3 b5 Qg4 h5 Qf4 e5 g3 exf4 Ba3 h4 gxh4 a5 Bb4 a4 bxa4 cxb4 f3 Ra6 Kd1 Rg6 Ke1 Rg4 fxg4 Qc7 Bc4 Qb6 Bf1 Qd8 Ke2 f5 Kd3 b3 c4 f3 h5 f4 h4 b2 h6 b4 h5 b3 h7 f2 e5 f3 Ke4 Nh6 a5 Ba6 a4 Ng8 Kf5 Qe7 Kg6 Nh6 e6 Nf7 h6 Ng5 Nh3 Bc8 a6 Qb4 Bd3 f1N e7 f2 Be4 Nh2 Nc3 b1B Nd1 Ngf3 Ng5 f1B Bc2 Rg8 h8N b2 Kh7 Be2 Ng6 Ng1 Ra3 Bf3 Re3 Ba2 Re5 b1B Be4 Nf1 Rh3 Nh2 Bc2 Nc6 Be4 Na7 a5 Nb5 c5 Nc7 Bf5 Bad5 Bc2 Bba2 Be4 Bc6 Ne6 Kf7 e8B+ Kf6 Ng5 Bd6 Bf7 Bc4 Be6 Re8 B6f5 Bf7 Bc2 Re7 Bfe4 Re6 Nf8 Ke7 Ng6+ Ke8 Bf5 Qb7 Rh4 Ne2 Nf2 Nc1 Rd5 Nf1 Kh8 Qb4 h7 Re3 Nd1 Be4 Rh2 Ra3 Re5+ Kd8 Rh1 Ne2 Rh4 Ng1 Rh5 Be8 Kg8 Ra1 h8Q Ra2 Qh6 Bg2 Kh7 Bf7 Rh1 Bgd5 Qh2 Be4 Qg2 Bed5 Rh3 Nh2 Qf3 Be4 Qb3 Bh1 Bfe4 Bf3 Rf5 Ke8 Qd5 Bf8 Re5+ Be7 Ne6 Bd6 Ng5+
q7/p1B2bb1/P2N2bN/Kn6/1PPR2RP/R3B3/q1P2pqn/k1rqQ3 b - - 0 1 legal: proof: f4 h5 g4 e5 gxh5 c5 d3 c4 dxc4 exf4 a4 b6 a5 Bd6 Bg2 Be7 Bc6 Bf8 Ba4 b5 Kf2 bxa4 Kf1 Qc7 Ke1 Qd8 e4 d5 Nh3 d4 Ng1 Nc6 Nd2 Rb8 Nb1 Rb5 Nd2 Nb8 Nb1 Rd5 exd5 Rh6 Ra3 Rh7 Ra1 Rh8 Kd2 Ke7 b4 Kd6 h6 Ke5 h3 f5 a6 g5 d6 a3 d7 g4 h7 a2 Ba3 d3 Kc3 g3 Qf1 f3 Nd2 g2 Nb1 f2 Ne2 g1Q Qc1 f1B Qg5 d2 Nc1 d1Q Qh6 f4 Bb2 f3 Nb3 f2 Bc1 Qg2 Be3 Nc6 Nd4 Nf6 Nd2 Bg7 Kb3 Ng4 Ka4 Bd3 Ne4 Nh2 Nf5 Nd4 Ned6 Nb5 Rg1 Bb7 Qg5 Qa8 d8R Bd5 Ka5 Bf7 Nh6+ Bf5 Qg4 B5g6 Qe2 Rg8 h8B Re8 Bg5+ Kd4 h4 Kc3 Be3 Kb2 Qe1 Re4 Re8 Rd4 Re4 Rd2 Rd4 Re2 Qd2 Re1 Qe2 Qf1 Rgg4 Qfg2 Rd3 Rf1 Qe1 Rh1 Ra3 Rf1 Rc1 a1Q Rd4 Qa2 Rg4 Qdf3 Rd1 Rg1 Rdd4 Qd1 Ne4 Ka1 Nd6 Bf8 Be5 Bg7 Qe2 Qd2 B5f4 Rc1 Qe1 Qd1 Ne4 Qh1 Bc7 Qg2 Nd6
2nrNn2/3P1p2/2KP1NR1/5qPN/3q3Q/k2B3P/q1p1P1p1/1Rbbq1B1 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 h5 a4 hxg4 axb5 Be6 d6 Kd7 d5 Ke8 Qd4 Bc8 f4 exd4 Ra2 g5 Be3 a5 Bd2 g3 Ra1 g4 Bc1 Ra7 Ra4 Ra8 Ra3 Rh5 Ra1 Rg5 fxg5 Na6 Ra3 Nf6 Ra1 Bh6 Nh3 Kd7 Nf4 Qe8 Kd2 Bb7 Bg2 Rd8 Rf1 Bc8 Bh3 Nb8 Rh1 Qe7 Bf1 Rh8 Kd1 Bf8 Nh3 Ng8 Ng1 Qd8 Ke1 Ke8 Kd2 Kd7 Kd3 c5 Kc4 d3 b4 g2 b6 a4 Kb5 a3 b7 a2 Bb2 c4 Nh3 g1Q Bd4 d2 Nf4 d1Q h3 g3 Nd2 c3 Ne4 Qc2 Bg2 Qe1 Nh5 Ne7 Bg1 Bg7 Rc1 a1Q Kc5 Qa6 b5 Qaa2 b6 Bd4+ Kb5 Be3 Bf3 g2 Rd1 Nbc6 b8Q Bc1 b7 Ng6 Qa7 Nf8 Qa4 Ne7 b8N+ Ke8 Na6 Bf5 Rd4 Kd7 Nc7 Nc8 Ne8 Qf6 Rc4 Qd4 Bg4 Be6 Bf5 Qcd3 Bh7 Qf3 Rc6 Bf5 Nd2 Bc2 Bd3 Qf5 Ne4 Bd1 Ra6 Kd8 d7 Ke7 Rb6 Rg8 Kc6 c2 d6+ Ke6 Rb1 Rh8 Bh2 Rg8 Rf1 Rh8 Bg1 Ke5 Kc7 Kd5 N4f6+ Kc5 Rf3 Rg8 Re3 Rh8 Re6 Rg8 Qa8 Rh8 Qe4 Rg8 Qh4 Rh8 Ra1 Kb4 Kc6 Ka3 Rb1 Ng6 Nc7 Rd8 Nce8 Nf8 Nh7 Qff4 Rg6 Qf5 N7f6
R3q1q1/pp6/R6B/3kN3/b1PN2bP/2Pp3Q/q2PBP1n/q1qnK2R b - - 0 1 illegal: No possible last move, all moves rejected
6K1/3Bp2P/QrkP2pR/n4N2/p3n1r1/2n1Pr1P/P5p1/1rBnRRN1 b - - 0 2 legal: proof: b4 a5 c4 d5 f4 dxc4 Ba3 a4 Bb2 Qd5 Bc1 Qa5 bxa5 Bd7 Nf3 Be6 Ng1 Bc8 g4 g6 g5 Bh6 gxh6 Bg4 f5 Bh5 Bh3 g5 Bf1 Bg6 fxg6 hxg6 h7 Ra7 Bh3 Ra6 Bf1 Ra8 Kf2 Kd7 Kg3 f5 d4 b5 a6 c5 h3 g4 Kh4 g3 Kg5 b4 d5 c3 d6 b3 a7 b2 Qb3 c4 Rh2 c2 Bg2 c3 Bh1 f4 Qa3 f3 Nd2 b1R Nb3 f2 Be3 c1R Bd5 f1N Bc4 g2 Bb5+ Nc6 Rh1 c2 Nd4 Rb8 a8R Nf6 Kh6 Rhf8 Kg7 Ne4 Nf5 Rb6 Ra5 Re1 Bd2 c1N Qd3 Ne3 Qc4 Nd1 e3 Ne2 Bc1 Rf1 Qd3 Rf6 Kg8 N2c3 Qe2 Rf3 Qc4 Kc8 Qd3 Kb7 Qe2 Nb8 Bd7 Nc6 Rc5 Na5 Rc4 Nc5 Rh4 N5e4 Rh6 Rf7 Be6 Rf4 Qa6+ Kc6 Bc8 Rg4 Bd7+ Kc5 Ne2 Kd5 Re1 Rf6 Ng1 Kc5 Be6 Kc6 Bd7+ Kd5 Nd4 R1b2 Re2 Ndf2 Bd2 Rf3 Rf1 Nfd1 Nf5 Rb1 Ree1 Kc5 Bc1 Kd5 Be6+ Kc6 Bd7+
1b2n1r1/q1P1Q3/rN1rbN1q/b2P4/2RBR3/nk1KNqbP/5PP1/1B5b b - - 0 1 illegal: No proof kernel
3n1q1b/P1BRrB2/2Rbn1KP/r7/P2P1q2/nP1NQ3/4q1kr/1bRr2N1 b - - 0 1 illegal: No proof kernel
1n2b1B1/b1b2nn1/3n1qr1/1Q3P1k/1KNPR3/r1BbPN2/3PbP2/n4BR1 b - - 0 1 illegal: No proof kernel
b3r1Nr/BPQ2K1k/q1n1PPB1/2RP2Bq/1b3Nr1/3bb1P1/4n3/1q4Rq b - - 0 1 illegal: No possible last move, all moves rejected
qr2k3/PB2Rr2/3K1P2/2BRN3/qr2qn1b/P3Q1Bb/1Pn1Pq2/2b2N1b b - - 0 1 illegal: No proof kernel
1q6/1R4q1/2rB1NPn/R1q2bKP/1q1Qr1nP/2p2b1B/1k1PPb1q/N3N3 b - - 0 1 illegal: No proof kernel
N5n1/1n3P2/4rPp1/b1Pk1B1q/Q2Nb1q1/4rbRP/KP1nb3/B2R1B1b b - - 0 1 illegal: Other
5K1b/P1q3Nb/rBP2kR1/nb1bN3/1P2PN2/4QP1n/Bp3b2/r1q1qR2 b - - 0 1 illegal: No proof kernel
1q1R1q1n/rk1n4/2b1Pp1n/3NP2P/4qPb1/P5b1/2NQn1rB/K2B1B1R b - - 0 1 legal: proof: d4 a5 b4 axb4 g4 c5 Bf4 e5 dxe5 h6 Qd6 h5 gxh5 b3 Bc1 Ra5 Qb6 Ra8 Qb4 cxb4 Kd1 d5 h4 Kd7 e4 Kc6 c4 g5 e6 b5 c5 f6 a3 g4 h6 b2 Kc2 g3 f3 d4 h7 d3+ Kb3 g2 Ka2 d2 h5 d1B Bd2 Kb7 Bg5 Nh6 Bd2 Ra7 Bd3 Bd6 Bc3 Bg3 f4 Rg8 h8Q Qf8 e5 Bg4 Nh3 g1N Be1 Nd7 Ng5 Ne2 Nc3 b1N Nf3 Nd2 Rd1 b3+ Ka1 b4 Bc2 Ne4 Nd5 Ng5 Nd4 Ngf7 Qg7 Nh8 c6+ Ka6 c7 Bb7 Rd2 Bc6 Bd1 Kb7 Qh7 Rg7 Nc2 Rg6 Rd4 Rg8 Qd3 b2+ Ka2 Rg6 Qd2 Rg5 Bf2 Rg6 Bg1 Rg8 Bh2 Rg6 Kb3 b1Q+ Kc4 b3 c8B+ Kb8 Kd3 b2 Ba6 Ka8 Bb5 Kb7 Kc4 Rg8 Kb3 Rg6 Na1 Qe4 Nc2 Nc1+ Kc3 b1Q Bf1 Qb6 Rd3 Qbd8 Kb2 Ne2 Ka2 Qb8 Ka1 Bf3 Rb3+ Nb6 Qd3 Bh4 Qd2 Rg2 Nc7 Bg4 Rd3 Bg3 Rd8 Nd7 Nd5
k1bb4/1R2q1BB/p1rn1P2/qQ2PPrr/3b1R2/2N1Pq1N/Pr2n1B1/3K4 b - - 0 1 legal: proof: d4 c5 b4 cxb4 g4 e5 dxe5 f5 gxf5 h6 Qd4 h5 Qg4 hxg4 h4 g5 c4 b5 f4 d5 c5 Kd7 h5 Kc7 c6 b3 h6 g3 f6 g4 f5 g2 h7 g3 Nd2 a6 Rb1 d4 Ndf3 b4 Ng5 d3 Nf7 b2 Rh4 d2+ Kd1 b3 Rh2 Qe7 Rh5 Nh6 Nf3 g1R Nh2 g2 Nd6 Nf7 Ra1 b1R Ne4 b2 Nf3 Nd6 Rh2 Kb6 c7 Kb7 Rh3 Nc6 Nc3 Nd4 Ng5 Ra7 Rd3 Ka8 Rf3 Rb7 Rf4 Rb6 Nh3 Rc6 Re4 Rh1 Rf4 g1B Bg2 Rg8 h8Q Rg5 Nf2 Rhh5 Nh3 Qe6 Qg8 Be7 Qe8 Bd8 Qd7 Qe7 Qe8 Bb7 c8B Bf2 Be6 Bc8 Qg8 Nf3 Qg6 Bd4 Bg8 Ng1 e3 Ne2 Bh7 Kb7 Qf7 Ka7 Qb3 Ka8 Kc2 Rg8 Qb5 Rgg5 Kd3 d1Q+ Bd2 Qf1 Kc2 Qf3 Be1 Rd1 Rb1 Rc1+ Kd2 Rc2+ Kd1 Qe8 Rc1 b1Q Bg3 Qb2 Rb1 Qb4 Bh4 Qa5 Rb3 Rg3 Bg5 Rb2 Bh6 Qe7 Bg7 Rg6 Qc4 Rg3 Rb7 Rgg5 Qb5
1q4R1/rPB2bQp/kN4N1/P2n1Bq1/2PP2P1/1N5r/2K2R1q/q1nnb2b b - - 0 1 illegal: No proof kernel
1B1n4/Pr1bN3/3P3n/r1b1PqPq/b3BRBQ/2P2Nb1/Rp1k3r/5Kn1 b - - 0 1 illegal: No proof kernel
5B1R/Kb3pP1/1r4Q1/2b1NPPN/1rPP1b2/k5qR/B2b1n1B/n1n1n1b1 b - - 0 1 legal: proof: e4 b5 a4 g5 h4 d5 hxg5 dxe4 axb5 c5 b4 cxb4 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 h5 f4 a5 g4 a4 b6 a3 Kb5 h4 c4 e3 b7 e4 g6 h3 g7 b3 g5 a2 d3 h2 f5 b2 Nd2 b1N Qc2 e2 Qa4 e1B Nh3 e3 Be2 Ne7 Nf1 Ra6 Bh5 e2 Ng3 Qc7 Rf1 h1N Be3 Nd7 b8B Bf2 Bb6 e1B Bf3 Bb7 Bc6 Ng6 Qb4+ Nc5 Be4 Bd2 Qc3 Nb3 Nf4 Na3+ Kb4 Nc2+ Kb5 Bg1 Be3 Nc1 Rf3 Nh4 Ngh5 Nf2 Ng6 Ng2 Rh3 Nge1 Ne5 Rb6+ Ka5 Rh6 Bf4 Kc5 Bh2 Bf4 Rb1 a1B Qb4+ Kd4 Qd6+ Kc3 Qg6 Bc5 Ba7 Rb3+ Bb6 Rb4 d4+ Ne3 Bd3 N3c2 Rb2 Qb8 Bd8 Qd6 Be7 Qb8 Ra2 Kb3 Bf8 Bc3 Be4 Na1 Bb1 Qd6 Ra3+ Kb2 Ba2 Bcd2 Rag3 Bf3 Rg4 Ka3 Rgh4 Qb8 Ng4 Qe5 Ka6 Qe3 Ne5 Be4 Qe6 Qg3 Qb6 Bb7+ Ka7 Be7 Qe6 Bd6 Qg6 Be7 Qh7 Rhb6 Qg6 Bd6 Nf6 Be7 Rh8 Bc5 Nh5
Nbb1qBq1/2n2q1p/PR2PP1n/Q2P4/2kr1PR1/4r2R/2Bb2pK/1N4n1 b - - 0 1 illegal: No proof kernel
kb2nr2/3P2RK/N4QP1/2bprb1B/1q1n1q2/rpP1R2P/1PR1B1N1/3q4 b - - 0 1 illegal: No proof kernel
3rN2Q/1np1KP1P/P1N1n2N/1np1b3/2n5/1b1P2P1/6bq/r1kRRBBn b - - 0 1 illegal: No possible last move, all moves rejected
2bq1r2/1P6/R1Bnp1PP/2rrk3/nN1P1r2/4rp1R/R1PB4/bQNK2b1 b - - 0 1 illegal: No possible last move, all moves rejected
3B1K2/1p2P3/b3r1P1/1P1bPnRq/1nn1k3/4NPbN/RBb1bp2/4Nr1Q b - - 0 1 illegal: No possible last move, all moves rejected
2Q3nq/3R3R/nBq3P1/P2rp1N1/2Bbpb1b/b1rP1k1P/5P2/1N1NK2b b - - 0 1 illegal: No proof kernel
1bKn1Qr1/b1P1p2R/2qB4/P1P1nr2/2Nb1P2/2PpRb1B/B1b1q3/3Nk3 b - - 0 1 illegal: No proof kernel
1Qr3bb/5b2/2qP2B1/k1r1R3/1bn2NPK/1p2pPNP/r2n1P2/1RqBB3 b - - 0 1 illegal: No proof kernel
Q1kbr3/2nN1qrb/1pP4r/1B1Pn1R1/1NP2p1P/7r/1PNK4/1BR3qq b - - 0 1 illegal: No proof kernel
1qR5/2r3Pp/3PPN1b/k1B1Pb1n/1B2Qrrb/1K1nPq1B/3R1Np1/r7 b - - 0 1 illegal: Other
5rNk/R1NP1pQ1/n2qB1n1/1nq2P2/1R1P3P/4Brp1/bb1K2RP/4rr2 b - - 0 1 illegal: No possible last move, all moves rejected
b1R3n1/kb1pqBbn/2P1rqR1/3PN1pq/3R4/q1PPB2Q/2qP2NK/8 b - - 0 1 illegal: Other
2k2B2/1Bp2Knb/P4b1N/nQP1Pq2/b1Pq2R1/b1p1NR1B/1bq4P/6r1 b - - 0 1 illegal: No proof kernel
1b1b2r1/B3Pq2/3q3P/2PN4/n1pbp3/KRnB2Rk/b1PQN2P/b2nN3 b - - 0 1 illegal: No proof kernel
1bbR2B1/bP3Pb1/8/P2q2Np/k5pb/rr2nbNP/3QB1Pb/2R3NK b - - 1 2 legal: proof: b4 a5 e4 b5 Ba3 f5 c3 fxe4 bxa5 d6 Bb4 Nc6 Bc5 dxc5 c4 b4 Be2 Nd4 Bf1 Nb5 cxb5 Be6 Bc4 Bg4 Bf1 Bc8 d4 Kd7 a4 e5 f4 g5 Kf2 h5 h3 c4 b6 Kc6 a6 c3 f5 g4 f6 c2 f7 c1B a7 b3 Ra3 e3+ Kg3 e2 Kh2 e1B Bd3 e4 Be2 b2 Qd3 e3 Qd2 Qd5 Ra1 Nh6 Ra2 Bh4 Ra1 Nf5 Ba6 e2 Bd3 e1B Ra2 Bg7 Bc2 Ne3 Bh7 Bef2 Nc3 b1B Bg8 Be4 Nce2 Bf3 Ng3 Ba3 Ra1 Bd6 Rd1 Rb8 a8B+ Rb7 Bh7 Rd8 a5 Kb5 Bg8 c5 Rc1 c4 Rd1 c3 Rc1 Qe5 d5 Bb8 d6 c2 d7 Ka4 Rd1 Re8 d8N c1B Ne6 Qd5 Ng5 Bcb2 Rc1 Re4 Rd1 B2e5 Rc1 Rb4 Rd1 Re7 Bb7 Re6 Ba6 Rb3 b7 Rc6 Be2 Rcc3 Rb1 Ra3 Rb6 Rcb3 Rd6 Nc4 Rd8 Bfa7 Bd3 Ne3 Be2 Be4 N1f3 Bed6 Rc1 Bf4 Ng1 Bf3 Kh1 Bfe5 Nf5 Bh2 Ng3
q2k2q1/QP1Bbq2/1K1p1Br1/3P1pb1/q1PRR3/b2P1P2/2nr1N2/4Nr1R b - - 0 2 legal: proof: b4 b5 h4 c5 d3 g5 a3 gxh4 a4 Nc6 e3 Nd4 exd4 Ba6 Be2 cxb4 Bf1 b3 Bg5 b4 Bc1 Bb5 axb5 Bh6 Ra5 Bg7 Ra1 Bf8 Ke2 h5 Ke3 f5 c4 e5 g4 a5 b6 e4 g5 b2 g6 d6 g7 b3 Nd2 b1R Nh3 b2 Ra4 Be7 Qc2 Nf6 Bg2 Ng4+ Kf4 e3 Be4 e2 Rb4 e1B Bg2 a4 Rb3 a3 Nf3 a2 Nhg1 a1B Rh2 h3 Rc3 h4 Qd1 Ra2 Rc2 Rg8 Re2 Bb4 Be3 Qc8 Qa4+ Qd7 Bh1 Kd8 Qa7 Qa4 Bd2 Ne3 Bc3 Rf1 Ne1 Ba3 Bc6 Qa6 Bd7 Qa4 Rg2 h2 Rg4 h1Q Nh3 Qa8 f3 Q4c6 b7 Qa4 Ng5 h3 Ne4 h2 d5 Rf8 g8R h1Q Rh8 Rg8 Rhh4 Qg1 Rh1 Qg2 Rgh4 b1Q Nf2 Qb2 Bg7 Qf6 Rg4 Qh4 Be5 Bc3 Bf6 Qh7 Rgh4 Qf7 Rg4 Nc2 Rgh4 Nd4 Ke3 Bcb2 Kd2 Bc1+ Kc3 Bh6 Re3 Rd2 Re5 Nc2 Rd4 Qgg6 Re3 Bg5 Ree4 Qc6 Kb3 Qgh7 Kc3 Rg6 Kb3 Qhg8 Kc3 Qc5 Kb3 Qb6+ Ka4 Qc6+ Ka5 Qa4+ Kb6
b1br3n/n1bn1RN1/1n1n1p2/QP5q/k2PPPR1/1p1BP2N/3n1BR1/3K4 b - - 0 1 illegal: No proof kernel
3Rr3/1pPP1pr1/1nn1rb1q/k2BBPQ1/n6R/1rNPN3/1PRr2r1/7K b - - 1 2 illegal: No proof kernel
7n/qP1n1N1k/2qqqQr1/3p1Pn1/1N1bR2K/P1P3B1/n2P2Bp/2r1B2R b - - 0 1 illegal: No proof kernel
1r1bn1n1/P1p4r/4B1Pr/R1BN1K2/1QqrPn2/1PP2nNk/2qBp3/2R5 b - - 0 1 illegal: No proof kernel
1q1bKQ2/2b1p3/R4P1b/3PnBPR/5rp1/2BBPPNp/5Nqn/2nrk3 b - - 0 1 illegal: No extended proof kernel
4k2q/1PPn2q1/4RPp1/pNrNQ2r/Bb1N1n2/7P/K1pPRb2/2Bb2q1 b - - 0 1 illegal: No proof kernel
2k3RB/1R1pb2K/1bP2p1N/1Bn1Pr1b/1N2nn1P/1PpN2PQ/2qb4/2r5 b - - 0 1 illegal: No proof kernel
5B1k/1bnp4/1Pbb1RR1/KPr3bQ/1P1pnN1P/2P2p1R/nq1rN1B1/8 b - - 0 1 illegal: Other
1Rr2n1R/np5N/n1b1r1P1/b1N2B2/P2KB3/rPP5/P1pp4/1q2QNkr b - - 0 1 illegal: Other
7R/PKnR2P1/n1PQp1R1/2NNb1k1/2q2pbr/1P2P1np/4B1B1/3b1n1r b - - 0 1 illegal: No proof kernel
3K3N/3np2b/1PPN3n/kN1Qqr2/q1BRp3/PP1b1p2/1b1BP3/Rr2b3 b - - 0 1 illegal: No proof kernel
n7/Pp5p/1P1N4/2N1kqrR/q1rq1bPp/R1Bn1qP1/1P1R2Qb/K4B2 b - - 0 1 illegal: No proof kernel
2krB3/2q3PN/P2nPB2/n1PnK1b1/1B2p3/3Nq1pr/2pQP3/RR3rq1 b - - 0 1 illegal: No proof kernel
kq1n4/2p2rN1/b3b3/b1Pq1nPp/1pBB1P1n/2P2R2/RP4BQ/4q1NK b - - 0 2 legal: proof: e4 g5 h3 b5 h4 gxh4 e5 a5 c3 Ra6 e6 Rc6 d3 Rc4 dxc4 fxe6 Qb3 e5 Qa4 e4 Qd1 a4 Qxa4 Bh6 Qd1 Bf8 g4 h5 a4 d5 f4 Kd7 Kf2 Kc6 Kg2 Kb7 g5 e5 a5 d4 a6+ Ka8 a7 d3 Qe2 h3+ Kh2 d2 Qe1 d1B Ra2 e3 Qg3 e4 Qe1 e2 Qg3 e1N Be2 e3 Ra5 Bb4 c5 Bb3 Qh4 Ba6 Bd1 e2 Be3 Be6 Bd4 Ne7 Na3 Nf5 Ra4 Nc6 Nc2 Ba5 Ra2 b4 Ne3 Ng2 Bb3 e1Q Bc4 Rf8 Qf2 Ngh4 Qe2 Ng7 Nf5 Rf7 Qg2 Qb8 Qe2 Ne8 Ng7 Nd8 Qf2 Nd6 Qe2 Kb7 a8B+ Ka7 Bg2 Ndf5 Nf3 Kb7 Rf1 Ka8 Kh1 h2 Ng1+ Bd5 Be4 Qc8 Be3 Ng6 Kg2 Qb8 Bd4 Ngh4+ Kh3 h1Q+ Qh2 Ka7 Bf3 Be6 Bfd5 Qhe4 Bb7 Nf3 Kg2 Qc6 Kh1 N3h4+ Bd5 Qd6 Bc4 Qde5 Bf3 Qd5 Bg2 Ka8 Rf3
4n3/2Np1rq1/3PbR2/KPP4P/p2BPq1Q/3R1Np1/2q1rkq1/1N1B2bb b - - 0 1 legal: proof: f4 b5 g4 h5 b4 hxg4 f5 c5 f6 Nc6 a3 Nd4 bxc5 b4 a4 Nb5 axb5 exf6 Ra4 f5 Ra1 f4 d4 Ke7 Kd2 Kf6 h4 Kf5 c4 Ke4 e3 a5 d5 g5 c6 f5 c7 a4 h5 g3 Nh3 f3 Na3 f2 Ng1 g2 Kc2 g4 Kb2 g3 Nf3 g1Q Nb1 f4 Bg2 f1B Bh3 b3 Kc3 b2 Nh2 f3 Be6 f2 Qb3 Nf6 Qb4 Bc5 d6 Qe7 Ra2 Ne8 Bg4 Rh7 Ra3 Bb7 c8N Bh3 Bd1 f1Q Nf3 Be6 Nb6 Qgg2 Nd5 Rf7 Nc7 Qf8 Rb3 Qff2 Rf1 Qg7+ Nd4 Qff3 Bd2 Qfg4 Rf6 Qf4 Nf3 Ba7 Be1 Bc6 Bf2 Rd8 Na3 b1Q Bg1 Qba2 Nb1 Qaf2 Rb2 Rc8 Rd2 Bb6 Rd3 Ra8 Qc5 Qc2+ Kb4 Rc8 Qg5 Bb7 Na6 Rc5 Qh4 Re5 Nc7 Bc6 Nd4 Ba7 Ka5 Bb7 Ne2 Kf3 Bf2 Bd4 c5 Re4 Be1 Re5 Bc3 Kf2 Bb2 Qf1 Ng1 Bh1 Nf3 Qg2 Bc1 Rd5 e4 Be3 Ra3 Rd2 Bb2 Re2 Rb3 Kf1 Rc3 Bg1 Rd3 Kf2 Bd4+
3N2B1/3PRb2/PpNBr2p/2R1q1b1/1P3r1b/1KPkr3/PQ4p1/1q1nN1r1 b - - 0 1 illegal: Other
nrN4R/pPPk4/1qQB2nq/2qn1K2/1R1q3p/Pp4r1/4PPBN/4b1N1 b - - 0 1 illegal: No possible last move, all moves rejected
b2RrbR1/n3b1r1/PP1Br3/6P1/k1QP1q1p/3p1b2/Bp1r2RP/1KN4N b - - 0 1 illegal: No proof kernel
bBR4K/2nP3n/bQ2BP1b/1n3p2/4nr2/p1Rp1PBk/1N1P3P/1bN4r b - - 0 2 illegal: No proof kernel
kqbN4/1p2r2p/1Kp1BR1P/3N4/1P1prbbB/2P3NR/1nPP4/n1Q4n b - - 0 1 legal: proof: f4 e5 g3 exf4 Kf2 fxg3+ Ke1 a5 Nc3 Ra6 Nb1 Rc6 Bh3 Rc5 Bf1 Rc3 bxc3 Bd6 Ba3 Be5 Be7 Bd6 Bg5 Qe7 a3 Bc5 Qc1 Qe4 Qd1 Qb4 axb4 Bf8 e4 d5 Ke2 Kd7 Ke3 f5 Kd4 f4 h4 g2 e5 c6 h5 Kc7 e6 a4 h6 a3 e7 f3 Kc5 f2 Qf3 d4 Bf6 g5 Qd5 g4 Bb5 f1B Nh3 g1R Be2 a2 Rh2 g3 Nf4 g2 Qe4 Na6+ Kc4 Kb8 e8N Ka8 Ng7 Ne7 Qg6 Nf5 Nge6 Ng3 Na3 Nc5 Nb5 Nd3 Nh5 Bd6 Bh4 Nh1 Ng3 Bf4 Nd8 Re8 Rh3 Re7 Bg4 Nb2+ Kc5 Be2 Rf1 a1N Be6 Bg4 Rf2 Rb1 Kb6 g1Q Qg5 Re1 Nc7+ Kb8 Qb5 Qh2 Nd5 Re4 Qf1 Ka8 Qc1 Be3 Ne2 Qb8 Rf6 Bf4 Ng3
b2r1QK1/1q1pB2R/2NP1qnB/1k3B1P/1P1NPrP1/5pq1/1pRb3p/2n5 b - - 0 1 illegal: No proof kernel
b1R1Rrkq/P3pPr1/K1B3Nn/P5b1/nP4N1/n1PQ2p1/2pqpB2/B7 b - - 0 1 illegal: Other
3rBB1b/1b1pn1P1/1PQ1N3/R1qNKP2/4pp2/p4B1k/P2Pq3/rb2Rq2 b - - 0 2 legal: proof: e4 g5 h4 gxh4 g3 f5 g4 c6 f3 Qa5 c3 f4 c4 Qf5 exf5 Na6 Qb3 Nc5 Qd1 Ne4 c5 Nf2 g5 Ng4 fxg4 b6 Ne2 bxc5 Ng1 c4 Ke2 Kf7 Kf3 h5 Ke4 e5 b4 a5 g6+ Kf6 b5 Kg5 g7 h3 b6 Kh4 g5 c5 g6 a4 Be2 h2 Kd5 a3 Qf1 c3 Nh3 c2 Nc3 c4 Nb5 c3 Rg1 h1Q+ Rg2 Bb7+ Kc4 Qh2 Bg4 Rd8 Nc7 Ne7 g8B Bg7 Bb2 c1Q Qh1 c2 Bf3 Qf1+ Re2 c1Q+ Bc3 Rh6 Ng5 Bh8 Nge6 Kh3 g7 h4 Nd5 Rg6 Kd3 Rg1 Bb4 Qc5 Ke4 Kg3 Bf7 h3 Re3 Qhe2 Be8 h2 Rc1 Kh4 Qg2 h1B Qg6 Kh3 Qf6 Qc7 Rc5 Qc8 Ra5 Qc5 Ra8 Qfg2 Qg6 Ra1 Ra5 Qef1 Re1 Qh2 Nc7 Qhf2 Qc6 Q2e2+ Ne3 Bg2 Ne6 Ng8 Rc1 Qc3 Bf8 Bh1 Kd5 Ne7+ Kd6 Qd4+ Bd5 Be4 Rb1 Qc3 Re1 Bb1 Bf3 e4 Nd5 Qc5+ Ke5
nb6/b2p2p1/1n1Pbb2/P2p1B1P/QpRq4/PPrR1N2/5b2/BN1K2kB b - - 0 2 illegal: No proof kernel
1bb1B1K1/p1pP4/7r/1PB2PB1/1N2pq2/N2p1PnQ/k1P1Rq2/2b1nR1b b - - 0 1 illegal: Other
2b2R1K/3n2p1/n1PPq3/8/p4N1R/1b2Pnpp/1N1pBP1P/2QrBkrN b - - 0 1 illegal: No possible last move, all moves rejected
2BN4/P1qk2p1/Nn1Pp1K1/6Pp/p3P3/B2PN1q1/1Qp2rq1/R1n1b1Rb b - - 0 2 illegal: No proof kernel
2rk1K2/R2prp1N/1rB3Nn/q1pn1P2/P1p5/b2q1R1p/PP1P4/1B1Q3B b - - 1 2 illegal: No proof kernel forced: bxDB
1K5k/2pP1Pr1/1p3p1R/1P2rpRB/N4BP1/3qrPB1/Qq1nNp2/2b2q2 b - - 0 1 illegal: No proof kernel
1rbN4/3Qnp1p/3rn1P1/qBBP1Rp1/1P2P1K1/1p1p1P2/2RNpRb1/k7 b - - 0 1 illegal: No proof kernel
2N1b1k1/1pPQP2p/4n1BP/1pq1PR1p/1P3N2/2rqp3/NbBp4/1r2R1K1 b - - 0 2 illegal: No proof kernel
1BBR2q1/P1bn2Rp/3prn2/1b1Rr1q1/3PN3/q6r/P1k3PP/1N1b1nKQ b - - 0 1 illegal: No proof kernel
2B1q3/prB1Q3/1rbp1N2/1k1PR2P/5bPb/r2nb1N1/Pn2P1nN/3b1KR1 b - - 0 1 illegal: No proof kernel
1rr1Rb2/q1B2nPp/bq6/b2p1R1P/1k1PnqP1/1BB4N/PK1Q4/1b2b1N1 b - - 0 1 illegal: No possible last move
Q1b2b1R/1q2RN2/2bN1p1q/K1kP2P1/1Bp5/3bqPn1/2PPBr2/1br1Rn2 b - - 0 1 legal: proof: e4 d5 exd5 a5 h4 g5 b3 gxh4 b4 axb4 g4 Kd7 a4 Kd6 g5 e5 a5 b5 a6 h5 a7 c5 Ke2 f6 Kd3 h3 Ne2 h2 Ra2 e4+ Ke3 c4 Kd4 b3 Kc3 e3 Kb4 b2 Nbc3 b1B Nf4 h4 Ra4 h3 Nce2 Qc7 Ra3 Qb7 Nd3 Na6+ Ka5 b4 Ne5 b3 Nd7 b2 Ra2 Ne7 Ka4 Nc5+ Ka5 Nf5 Qe1 Ng3 Nd4 e2 Ne6 Nce4 Bg2 Nf1 Ndc5 Neg3 Rg1 h1B Ra1 h2 Bf3 Ba2 Nd8 b1B Bb2 Bb3 Bc3 Ba4 Ra2 Rb8 a8R Bc6 Qc1 e1Q Qa3 Rh5 Be2 Be4 f3 h1Q Qa4 Bd3 Nf7+ Ke7 Qa3 Rh2 Ne4+ Kd7 Qa4 Rf2 Ned6 Qh6 Rh1 Qg7 Rh8 Qh6 Ra1 Kc7 Ra7 Ra8 Bd1 Qe3 Be2 Bb5 Kb4 Kb6 Qa2 Bc6 Qa3 Qa6 Re7 Qb7 Qa4 Ra5 Qa2 Rb5+ Ka4 Kc5 Qa3+ Rb4+ Ka5 Ba2 Qa4 Rb2 Re1 Rb1 Nb5 Rc1 Nbd6 Bb1 Qa1 Qb3 Qa4 Ba8 Qe8 Bc6 Qd8 Qb7 Qe8 Be6 Qa8 Bc8 Bb4+
8/1q2pRNr/BnPpP3/BQ1PB1P1/3nkr1P/K1R5/1r3qbN/nqb4q b - - 0 1 illegal: No proof kernel
3n1Q1N/1Pr3P1/1pbn3r/1B1PB2p/2BR2N1/qr4bP/1P3n1q/n1K1b1Rk b - - 0 1 illegal: No proof kernel
Bn2bRK1/2Nr1rp1/1r3QPB/4b2q/1n1R2P1/p1bP1rNn/P3n1P1/1Nk5 b - - 0 1 illegal: Other
1QrB4/2p2N2/K1b1b1n1/N2R1n2/1b1p2nR/PPPPRPkr/n1qq2B1/1b6 b - - 0 1 illegal: No proof kernel
4K1kb/rbqn1r2/1QRp1r2/pN6/3P2p1/Pn1NP1P1/2q1P2b/BNRB1n2 b - - 1 3 legal: proof: c4 b5 Qc2 bxc4 Qd1 e5 Nf3 e4 Ng1 e3 fxe3 Bc5 Nc3 Be7 Nb1 Bf8 g3 h5 Qb3 h4 Qb7 h3 Qg2 hxg2 Kf2 g5 Kf3 f5 d4 Kf7 b4 a5 h4 c5 b5 c3 b6 g4+ Kf4 c2 Ke5 d6+ Kd5 f4 h5 f3 h6 f2 a3 c4 b7 c3 h7 Nd7 Kc6 Ra7 b8N Bg7 Bb2 c1Q Na6 c2 Nf3 g1B Ne1 Nc5 Nc7 Bh2 Bg2 f1N Nd3 Nf6 Nb5 Nfd7 Be4 Rf8 h8Q Nb3 Ra2 Qd2 Ba1 c1R+ Rc2 Qe7 Qh5+ Kg8 Qc5 Rf7 Qb6 Bb7+ Kc7 Re1 Rc6 Qc2 Rg1 Rf6 Rh1 Qf7 Kd8 Qfc4 Ke7 Bh8 Ke8 Qc5 Qa6 Qb6 Rg1 Qc7 Qb6 Nfd2 Bf5 Rf1 Be6+ Rf7 Rh1 Rf6 Rc1 Nbc5 Bb3 Nf1 Nb2 Qc4 Bc2 Nb3 Bd1 Qc2 Nd3
3R4/rNPB1p2/1Pb1bpkr/6p1/BKbq1nP1/1P2QP1R/1Bb2Nnb/2n5 b - - 0 1 illegal: No proof kernel
3n1B2/Pr4Q1/1Nqp1rNP/pp1bb2n/n2P1N1R/3P1R2/Pk4b1/2nBn1K1 b - - 0 1 illegal: Other
RK1Q1r2/R1r5/2b1p3/1n1PPp2/p3r3/B1q1bPN1/P1nrP2B/1bnkN1N1 b - - 2 3 illegal: Other
1n1Nq2r/P6p/2B1R1pB/5b2/npb1rRQP/1P1b2Kn/P5P1/knBr2N1 b - - 0 3 illegal: Other
1n2b3/nq1p1PRr/1q6/2NQppBb/1r1BPbR1/3PP2n/3K1P2/2N2kBn b - - 0 3 illegal: Other
3bq1Q1/r3BrRp/1nPp3P/b1R2BRN/kP2n1K1/3P3p/q1b2PN1/5br1 b - - 0 1 illegal: No proof kernel
2b2N2/q2qPPbp/n1n1R1Br/Q2k3r/5p1r/1R1pBPPP/2b2BK1/5rN1 b - - 0 1 illegal: Other
q1nrb1n1/2P1pB1n/2p2B2/n1rPBp1q/2Q5/1qR4R/1bPNP1P1/2Nk3K b - - 0 1 illegal: No proof kernel forced: bxLB
bnq4r/1nrbP1pp/2R1Q1R1/6Pp/b2PK3/b1N2N1P/1N2Pbb1/2BB1k2 b - - 0 1 illegal: No proof kernel
R1qB4/r1p1NpPp/4QPb1/n1PB4/1Rb2n1P/P1N1rb2/2n1n3/N4Kbk b - - 0 3 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 f5 Ra5 Qd4 Ra8 Qf4 gxf4 e4 Ke7 h4 b5 g4 d5 c4 b3 g5 d4 g6 b4 e6 Kd6 f6 Ke5 e7 d3 e8N f3 g7 f2+ Kd1 d2 Ke2 Kf4 e5 Kg3 e6 d1B+ Ke3 b2 e7 b3 a3 Nc6 Bd3 Kg2 Be4+ Bf3 Bd2 Na5 Nd6 Ra7 e8Q Ne7 Ne2 Ba6 Bd5 Qc8 Nbc3 b1N Re1 b2 Nd4 Ng6 Qe6 Nf4 N6f5 Bc5 Ne7 Re8 Re2 Kh1 Be1 f1N+ Kf2 Nbd2 Rb1 Ne3 Nb3 Ndf1 Na1 Ng3 Rd2 Nge2 Rdd1 Nc2+ Kf1 Bd4 c5 Rf8 Bg3 Bg1 Rd4 Rd8 Rb4 Re8 Rb8 Bc4 Ra8 Nh3 Bd6 Nhf4 Rd1 b1B Rd4 Bba2 Re4 Bd3 Rb4 Bac4 Nc6 Bf5 Be7 Bg6 Bd8 Re7 Qe3 Re5 Ne7 Re6 Qe4 Re5 Qf5 Re3 Qe6
1rnq1b2/bpB1QK2/2R1B3/N2n2R1/P3n1P1/2pPr1pk/1PPn3N/2b3Nb b - - 0 1 illegal: No proof kernel
BR3N2/6b1/1p1pPq1r/4RqPp/3p1rNK/2b3P1/2bP1BkP/nQ1n1N1r b - - 0 1 illegal: No proof kernel
K4brB/3p2B1/p1pb3R/3NqkN1/q2r3R/3P3p/PrPb1P1P/1B2nn1Q b - - 1 6 illegal: Other
R1K1b1B1/P3NRr1/4kNr1/5N2/2ppp1n1/b1PB1prq/2rP1P1P/1Q4nr b - - 1 3 illegal: No proof kernel
B1b1BN2/4nprq/PN2R1Pr/b2pBP1p/1rpnr1k1/Q1P5/2P5/1R3n1K b - - 0 1 illegal: No proof kernel
Q3R3/nbr3p1/3KbR2/1BPbr1R1/4rbPk/nP1p4/3PP1pp/2BNqN2 b - - 0 1 illegal: No proof kernel
1Q5n/n1P3p1/1r1BN2k/1p1P1N2/1Ppr2PK/p1n2b2/Pbr1B1rR/1q2R1B1 b - - 0 3 illegal: No proof kernel
1b4B1/pQN4p/2R2P2/Kpb3rP/pr1Pn1Bq/PP1nR3/1kn1N3/2B2rr1 b - - 0 3 illegal: No proof kernel
1b2r1q1/Pbnp1b1N/3Q1Rn1/K1PP1pk1/2B1P3/2pN2np/1B1b1P2/1r3RB1 b - - 0 1 illegal: No proof kernel
1r2n3/BQ1K1np1/p2b4/2Pb2R1/R2PrNP1/1n2P1p1/P1pr2Bq/n2RN1k1 b - - 0 1 illegal: No proof kernel
3qQ3/5bR1/3bb1B1/3R1pp1/qrp1P1Pp/Pr1Nk1PP/2Nb2nK/B5nN b - - 0 1 illegal: No proof kernel
7n/pPK4b/PPN1B3/1bp3bp/4bp1q/BP3R1n/2RNqN1P/r4krQ b - - 0 1 illegal: Other
5B2/rR4pQ/2p2Pq1/3nBNnR/p2qb1Pn/r6n/PPPpBN1k/Kb6 b - - 1 3 illegal: Other
5kBR/2p4p/2Q1qnnp/1PP1P3/Kp1Bq2P/1PNb1N1R/2q2qr1/N3r1q1 b - - 0 1 illegal: No proof kernel
1N1rBRK1/1PpP1pb1/1Q3rb1/n2B2bn/3p3p/2n1NPp1/q1kP3P/R6N b - - 1 3 illegal: No proof kernel
qk5B/rp5Q/RN1np1pP/1rp3P1/bPq2p2/nBP1BP2/2b3R1/4nNK1 b - - 5 6 illegal: No proof kernel
1Q2K1R1/1NPNP1p1/p1Np1rR1/B5kp/Prp1Bnr1/1bbq4/2nP2qP/8 b - - 0 3 illegal: No proof kernel
QK3R2/PP2r1Bn/bb1p2p1/r3Brqk/3Pp1pR/6PB/P4N1p/r3N1n1 b - - 0 1 illegal: Other
1bqr4/1brR1Nrp/p2R2rp/P5n1/2NK1pk1/3P3P/Q2pPPBn/3R3B b - - 0 3 illegal: No possible last move
RqB3K1/2B1pp1R/3B2np/N3Pqpb/Pr1n1P1Q/3p2r1/2bP2NP/1n2b1k1 b - - 0 1 illegal: No proof kernel
2Bqb3/n1p1pRPB/r1p2pp1/p1P5/1R1B1PN1/1pr2QN1/1knqP1P1/4b2K b - - 0 1 illegal: Other
R3bN2/N1r2q1P/4q1B1/n1nRB1P1/PrQ3rP/kQp1P2K/2nb4/2n5 b - - 0 1 legal: proof: c4 a5 f4 h5 g4 g5 gxh5 e5 fxg5 d6 b4 axb4 d4 d5 cxd5 exd4 Kf2 Ke7 Kg2 Kd6 a4 Kc5 h6 b5 d6 f5 h3 b3 d7 Kb4 e3 c5 Ne2 b2 Nec3 d3 Ra2 f4 Qg4 c4 Rh2 d2 Qh4 d1N Nd2 b1N Rb2+ Ka3 Nde4 f3+ Kg3 b4 Bd2 f2 Bc1 b3 Rg2 Ne7 Re2+ b2 Rc2 Nec6 Bd3 f1Q Bd2 Bb4 Qg4 Qdf6 d8Q Bd7 Qc7 Qe6 Qb6 Qff7 Nf6 Be8 Nh7 Ra7 Bg6 Na5 Nf8 Na6 h7 Nf2 h4 Nd3 Rc1 Nac5 Kh3 Rc7 Rf2 Rg8 Rd1 Nc1 Rf5 Rg7 Rd5 Rb7 Rd8 Rd7 Ra8 Rd4 Be1 Re4 Bg3 Rd4 Nd5 Bd2 Be5 c3 Ne7 Rb4 Nc8 Rc4 Qf5 Rg4 Qa6 Kb3 Rh1 Na3 Rd1 b1R Na7 Nc2 Qc4+ Ka3 Qff1 Rb4 Qh1 Be1 Rd5 Bd2 Qhe4 Qf4 Qh1 Rc7 Qd1 Qff7 Qdf1 N1d3 Qb1 Nc1 Qbb3+
2N2Rn1/1P2P2r/1B3nrN/1k1b1rBn/1n3bR1/1Q1Qp1Pp/1PP3bK/8 b - - 0 1 legal: proof: e4 b5 a4 d5 exd5 Kd7 axb5 g5 h4 gxh4 d6 Ke6 d7 c6 Ra5 Ke5 Ra1 Kd6 f4 e5 d4 e4 d5 Qb6 Bc4 Qd4 Bb3 Ke7 d6+ Kf6 Bc4 Qe5 Bd5 cxd5 fxe5+ Ke6 Kf2 f5 d8Q h5 d7 a5 b6 d4 b7 Kd5 e6 Kc4 e7 f4 Qf1+ d3 Qe2 h3 Ra4+ Kb5 Qf1 h2 Bd2 e3+ Kf3 h4 Ra1 h3 Bb4 a4 Ra2 a3 Qe2 Ra6 Ra1 a2 Bc5 Rg6 Nd2 Rh7 Bb6 Nc6 Ne4 Nb4 Rf1 a1R Rf2 Rf1 Nd6+ Ka6 Bd4 Bh6 Bf6 Bg5 Qd1 d2 Ne2 Bh6 Qb1 d1N Nd4 Nc3 Bg5 Ne4 N4f5 Nef6 Rg1 h1N Qe1 Ng3 Qc3 Ngh5 Qb3 Bf8 Nh6 Bg7 Nc4 Kb5 Nb6 Bh8 Qe8 Bg7 d8B+ Bd7 Qef7 Be6 Nc8 Bc4 Qe6 Bd5+ Qe4 Bf8 Nf5 Bh6 Bb6 Ne8 Kg4 f3 Qd4 Nef6+ Kh4 Nf4 Kg3 N4h5+ Kh2 Rc1 Rff1 f2 Qd2 Ra1 Qd1 Ra5 Qdd3+ Kc6 Ra1 f1B g3 Rc5 Ra4 Bfg2 Rf1 Rb5 Bh4 Bf4 Bg5 Bc4 Nh6 Rf5 Rf2 Bcd5 Ra8 Bc7 Rf4 Bb8 Rg4 Bf4 Nd6 Rh8 Rf8 Rh7 Bc7 Kc5 Nc8 Kc6 Ba5 Kc5 Bb6+ Kc6 Qdc3+ Kb5 Qd3+
NQ2qr2/1P4Pq/2qNp2p/1Pn5/Rr2Q1n1/R2Br1rP/3BP3/K2n2k1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 a4 b5 axb5 g5 f4 gxf4 b6 Ba6 Rxa6 Bg7 b5 Be5 Ra4 Bd6 Ra1 Ba3 Nxa3 Qc8 Nb1 Qd8 Kd2 d5 g4 Kd7 c4 Ke6 Kc2 Ke5 Kb2 Ke4 b7 f5 h3 a5 g5 a4 g6 a3+ Ka2 f3 g7 d3 c5 e6 c6 f4 c7 f2 c8Q f3 Bf4 h6 Qd7 d4 Qc2 Na6 Qd6 Nf6 Qc4 d2 Qc3 d1Q Qb3 d3 Qc5 d2 Qa7 Qe8 Qc3 Qc1 Bg3 d1N Qa5 Nc5 Qb4+ Ke3 Qb8 Ng4 Nc3 Rf8 Bg2 f1Q Bf4+ Kf2 Qe4 Ra4 Nd5 Rb4 Nb6 Qc3 Na8 Qd3 Qd5 Qh7 Qe4 Qe1 Bg5 Qc3 Bd2 Qc1 Rb1 Qc4+ Ka1 a2 Rb3 Qd5 Ra3 Qd6 Rh2 Qdc6 Bh1+ Kf1 Rg2 f2 Rgg3 Rf3 Ra4 Re3 Nf3 Rc4 Nd4 Rb4 Rf3 Kg1 Nf5 f1R Nd6 Rf2 Rf8 Rg2 Rf3 Rg3 Bg2 Nb2 Qa7 Rbb3 Ra5 Rec3 Qg6 Rc1+ Qb1 Rc3 Ra4 Rf1 Qb8 Nd1 Re3 Rc4 Be4 Rf8 Bf5 Re4 Rea3 Ree3 Qc2 Nc3 Kb2 a1R Bg6 Rc1 Qb1 Nd1+ Ka1 Rc4 Qb4 Rcf4 Bd3 Rfe4 Qc4 Ref4 Qd5 Rb4 Qe4
Nq2b2K/1k1nq2B/rB4p1/2rbP3/Q1P1P1Rb/bN6/2R1nP1P/Qb1q4 b - - 0 1 illegal: No proof kernel
Q3Nqnn/P2rpP2/8/q2RRb1r/2N2BP1/b1Q1PP2/n1b2K2/2kb2Bq b - - 0 1 illegal: No proof kernel
BQ6/p1P1P2R/N1r1kN1P/bb6/1n2n3/q1Pr4/n1R2PQr/q1qqBK2 b - - 0 1 illegal: No proof kernel
bq1Rk3/1rR3Qr/nPq3nB/r5Np/1P1Q3P/1B2P1K1/1pN2Pbn/q7 b - - 0 1 illegal: No proof kernel
Bq5b/5nPR/1b2RbkQ/PKnr1p2/1P5B/1rrQpN2/3P1PN1/2n3q1 b - - 0 1 illegal: No proof kernel
2QQ2b1/r3N1nP/1np3PN/5P2/2r4P/1Pp1nRK1/B1nRrB2/1b2b1kq b - - 0 1 illegal: Other
5kr1/1Pn2n1p/1R4b1/6Qq/rPPPb2N/4n1KB/2pr2RP/b1QnN1B1 b - - 0 1 illegal: No proof kernel
3q4/3P2Qr/r2bn1r1/N2P3r/P5bB/1K2Np1P/p1PRn1B1/q1Rqk2Q b - - 0 1 illegal: No possible last move
1R1k1K2/B1r2n1B/7p/2Pq1rP1/NNbrrRPP/2b2P2/np2rQ2/6Qr b - - 0 1 legal: proof: d4 f5 b4 g5 d5 a5 d6 axb4 Na3 g4 Bg5 f4 Nb1 f3 exf3 g3 fxg3 cxd6 Bd2 d5 Bc1 d4 Kf2 d5 c4 e5 a4 b5 h4 e4 c5 d3 Ke3 b3 Kd4 b2 Ke5 d2 a5 d4 g4 d3 g5 b4 g4 e3 a6 b3 a7 e2 Ra5 e1R+ Qe2 d1R Qe4 d2 Ne2 Qd5+ Kf4+ Kd8 Ra4 Bg7 Nbc3 b1R Qc2 Nc6 Na2 Nb4 Nec3 Rb2 Bd3 Ba6 Qb1 Rb8 a8Q Rc8 Qa1 Be5+ Kf5 Bc4 Qa7 Rc7 Bc2 h6 Kg6 Nf6 Qa6 Ne8 Qb7 Nc6 Nb4 Rf8 Qb5 Re4 Re1 Bf1 Qe2 Rf5 Qf2 Bc4 Rh1 Rg1 Bb1 d1R Bf4 Rdd4 Bd3 Rg2 Rb1 Rbe2 Rb2 Nd6 Qag1 Bg7 Kh7 Nf7 Kg8 Bh8 Kf8 Rh2 Bc2 Rh1 Bd6 Rd7 Bb8 Rc7 Ba7 Bf6 Na6 Nb4 Bd3 Na2 Nb4 Rff4 Rb1 Re6 Bh7 Rf5 Ra6 R6e4 Na4 Rdd2 Re6 Bc3 Rf6 Rdd4 Rb2 Rfe5 Rf4 Rf5 Rd2 b2 Rd3 Re6 Re3 Ree7 Re6 Ree4 Rb6 Re2 Rb7 R7e4 Rb8+
4k1N1/1b3PpB/2NBqrP1/b2q2b1/nqQ1b2P/p1PQ3b/1P1RK1R1/3n4 b - - 0 1 illegal: No possible last move
3r1Qr1/rp3q1q/1Pk3Bn/2P3Q1/3Rpn1K/1nPq4/PBN2PN1/2R1qb2 b - - 0 1 illegal: No proof kernel
1N6/nbP1b1PR/N2p4/RrQ2P1k/2PqBB1p/4P3/4r1rp/1Q2bKbn b - - 0 1 illegal: No proof kernel
2BR3B/pR2NPbr/3P1Qb1/1p1nb2k/Q5nP/2nP2rq/pK2Pn2/3N4 b - - 0 1 illegal: No proof kernel
5B2/Q1b3Pn/2K1p1P1/q1bB3b/pr1b3P/r1R2pN1/Nk1P1RnP/q4Q2 b - - 0 1 illegal: Other
2r2n2/Rk1p3p/1qN1rr1P/1nP1pP1q/1b2K2B/2P2QP1/n1B1QN2/n5R1 b - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 f3 axb4 f4 gxf4 Nf3 f5 Bd2 b6 Bc1 Bb7 Ng1 f3 e3 f4 e4 Bd5 Kd2 Be6 Ke1 Bf5 exf5 Qc8 Be2 Qc7 Bf1 Qd8 Kf2 e5 h4 b3 a3 b2 g3 b5 h5 b4 h6 b3 Nd2 b1R Ra2 b2 Ne2 Nc6 Rh3 Qb6 Rh5 O-O-O Bg2 Nge7 Qg1 Nb4 Nf1 Ng6 Nd2 Re8 Rh1 Kb7 Nd4 Re6 Ne4 Ra1 Nc6 b1N Bd2 Nc3 Qh2 Nb5 Rg1 Rb1 Ra1 Na2 Bf1 Be7 Bd3 Rc8 Be3 Nf8 a4 Bg5 a5 Rd1 Bc4 Rdd6 Bd3 Bd8 c3 Bc7 Ke1 f2+ Ke2 f1N Nf2 Nd2 Bc2 Nb3 Kf3 Rf6 Qg2 Rde6 Ke4 f3 Bg5 Bd8 Bh4 Bc7 Nd1 f2 Qf1 Bd8 Qe2 f1Q Nf2 Qd1 a6+ Ka8 a7 Kb7 Rb1 Na1 Rb3 Bc7 Ra3 Bd8 Qd3 Qh5 Qe2 Qa6 Ra4 Ba5 Ra3 Bb4 a8Q+ Kc7 Qf3 Qb6 Qa6 Na7 Qf1 Kb7 Q1e2 Nb5 Ra7+
R1nK1Q2/b2n2p1/B2Pp1Pr/2N1b3/1pn5/1b2bPP1/kB1q2Pq/1N4RQ b - - 0 1 illegal: Other
1r3nRK/PR4P1/1p3b1n/pqQB2qb/5B1p/1P2b1N1/3P1k1P/b3NQ1q b - - 1 2 illegal: No proof kernel
2KN1rQQ/5qNb/1p1B1Rrn/1k1Pp1PR/nq1q4/P2rp1P1/1P3r2/3B4 b - - 0 1 illegal: No proof kernel
Nq1n4/pb3pK1/PN1Pp2B/4P3/2QP1nB1/q3PR2/Rnr1Qnn1/1n4k1 b - - 0 1 illegal: No proof kernel
rBNq1bBR/p7/1qPr4/QP4kp/1pK3p1/1Pp1PP2/N2p2R1/1Q3n1n b - - 0 1 illegal: No proof kernel
1b4rr/Qn3p2/2R2P2/rBr2PQ1/b1pB4/NbP1RK1n/P3Pn1r/q2k1N2 b - - 0 1 illegal: No proof kernel
R1n4b/2Q3pr/b2P2NN/Rr1n2n1/PqpB4/1PP1Q1Pq/n2k1K2/2b2B1q b - - 0 1 illegal: Other
2q2nr1/1rPB1R2/3p4/2qP1K1n/QN3bNp/1RP1b2n/P2QpBbP/2k2r2 b - - 0 1 illegal: No proof kernel
2b2b2/p3qk2/PP1Q1NrR/r7/1Q1Nn1pK/1bn1P1PB/pR1BP3/1q2q1q1 b - - 0 1 illegal: No proof kernel
N1R2nb1/1p2QpP1/Br1p1nk1/K1Q5/R2nqP2/NPnP1P2/1n2rn2/Bb6 b - - 0 3 illegal: No proof kernel
Q1Rn3K/2p1Q1B1/1q3n2/nb4rN/2k3Bp/RpPn1nPP/NPb3P1/2n3b1 b - - 0 1 illegal: No proof kernel
r1k3rn/PbN1b1pB/1N5Q/4pn2/1PpQ3R/1qR2BPr/b1P1P1p1/4K2n b - - 1 3 illegal: No proof kernel
1nq3n1/BpP4R/1P1kp2Q/Kp2P3/NPR2bPb/1N1r1Bq1/b1qpQ3/3r4 b - - 0 2 illegal: No possible last move, all moves rejected
7Q/qnqp1pnq/2N1NP2/rR1rP1bk/B4pP1/Q1PPb1p1/1R2b2B/7K b - - 0 1 illegal: No possible last move, all moves rejected
1b1k2qr/1Q3bp1/3rNP2/2Bp1r2/1q2p1PB/n1p1bN2/1PPP1RnR/Q2K4 b - - 0 3 illegal: No proof kernel forced: bxDB
BnN2K2/N2Q2Q1/1b2p3/1b1nP1Pq/q3rp1p/4pPrP/Rnk1P3/1RB1n3 b - - 4 5 illegal: No proof kernel
N1N1K2Q/pp5B/rB1Rb1rr/n1p1P1QP/2P2b1R/1P1q1p2/3k2Pq/1n4r1 b - - 0 1 illegal: No proof kernel
1B3N2/1kB1P3/6rR/QP3p1b/qpp1pnNK/1PbrPP2/1Q3Rp1/1n2n1q1 b - - 0 3 illegal: Other
3k1N1R/4p3/2R2pr1/ppb3q1/P2nqP1P/nrq3pb/1Q1P3P/3BBQKN b - - 0 1 legal: proof: e4 h5 b4 d5 b5 dxe4 g3 h4 gxh4 c6 Qh5 cxb5 Qd1 b4 c4 b5 f4 g5 Kf2 b3 a3 b2 c5 e3+ Kg2 e2 c6 e1Q c7 g4 Qb3 g3 Qd3 Nc6 Nc3 b1Q Nge2 Na5 Ne4 Bh3+ Kg1 Qb4 c8Q Rh6 Qcc2 Rg6 Qb2 Bg7 Nf2 Qd5 Nd4 Qee4 Be2 Qg5 Ne6 Nc4 Bd1 Nh6 Qf1 Bd4 Nf8 f6 a4 a5 Ra3 Kd8 Rc3 Na3 Rc5 Qg4 Rh5 Nf5 Rh8 Qg5 Qc3 Qc5 Bb2 Rb8 Qc1 Be3 Bd4 Rc8 Qb2 Qc3 Bc2 Qc5 Qfb1 Bg4 Kf1 Qa8 Rg1 Qe5 Nh1 Rc3 Bc5 Qc8 Kg2 Qd4 Rc1 Qe4+ Kf1 Bg1 Bf2 Qcc6 Bb3 Rd3 Rc4 Rf3 Bc2 Rb3 Qe1 Qc5 Bd1 Qce5 Qe2 Qc3 Be1 Bh3+ Qg2 Bb6 Rc6 Nd4 Kg1 Bc5 Qf1
3K4/1pPRp1bk/1qpR4/1N1P4/1nP1P2Q/2ppB3/br1PbrQ1/bNq2B2 b - - 0 1 illegal: Other
2BR1q2/n2N1n2/1rk2q1P/1p2q1PR/6Pn/2BPp2P/1RQn3b/2K3B1 b - - 0 1 illegal: No proof kernel
Kn1B1BRr/5q1k/1bP2P2/1n5b/1PR1NP2/P1r1n2r/1QR3n1/n1B2r2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 d4 b5 g4 c5 gxh5 a4 Nd2 Qc7 b4 Nh6 Nb3 axb3 dxc5 Qd8 c6 Ng8 c5 Bb7 Bd3 Bc8 Bc4 bxc4 h3 Ra4 Ke2 Kf7 Ke3 d5 Kd4 g5 f6 c3 c7 e5+ Ke3 g4 c6 g3 Bd2 e4 Kd4 e3 f4 b2 Be1 b1R Ne2 c2 Qd2 c1N Nc3 g2 Ne4 g1R Qb2 e2 Bd2 e1N Rh2 Bg4 c8R Ne7 Kc5 Qd7 Kb6 Kg8 a3 Ra7 Rg2 Nb3 Rf2 Rd1 Rc1 d4 Rc4 d3 Bc1 Na1 Rfc2 d2 Re8 Rg3 h4 Ng2 Rc8 Rh7 h6 Nf5 h5 Nd6 Rd8 Nb5 Re8 Rh8 h7+ Kf7 Rd8 Rc3 h6 Kg6 Re8 Rg8 h8B Rc7 h7 Bc5+ Ka5 Bg1 Bg7 Rh8 Rg8 Bd4 Bf8+ Qg7 Rc5 Rf1 Kb6 d1N Be7 Nde3 Bd8 Rf7 Bc7 Re7 Kb7 Re5 Ka8 Rh5 Bb6 Rh3 Bd8 Bh5 Rc4 Bb6 Re8 Rg8 h8B Qf7 Bg7 Rh8 Rg8 Kh7 Bf8
2B5/2Pn4/1b2k1P1/P1qr1PnB/r4R1N/Nnp1bP2/K2b1B2/QNq4q b - - 0 1 illegal: No possible last move, all moves rejected
1B3n2/rPP1b1bP/nnR3BP/bKRQ4/8/q5pN/1P1r1k1B/1R2b2n b - - 0 1 legal: proof: d4 f5 e4 fxe4 g4 b5 h4 c5 dxc5 Nh6 a4 Ng8 axb5 Qc7 Bh6 Qb6 Bc1 Qd8 h5 Bb7 h6 Bd5 Ke2 Bf7 Ke1 Bh5 gxh5 Kf7 Nd2 Nc6 Ndf3 Nb8 Nh4 Ke8 Ng6 hxg6 Kd2 Kf7 Kc3 Ke6 Kb4 Kf5 f4 e5 c4 a5+ Ka4 d5 b6 d4 c6 d3 c7 g5 c8R e3 h7 Ke4 f5 g4 b7 g5 f6 g3 c5 g4 h6 d2 c6 g2 f7 g3 c7 e2 Rb1 Ke3 Nf3 g1B Rh2 e1B Rg2 e4 Bd3 Nd7 Bb5 Ngf6 Ra1 Nb6+ Kb3 a4+ Kc3 a3 Bc6 a2 Nh4 Be7 f8B Ra7 Ng6 Qd6 Re8 Nfd7 Qb3 Qa3 Rb1 a1N Nf4 Nc2 Nh3 Nb4 Bg7 Na6 Bd4+ Kf3 Rd8 Nf8 Be8 e3 Rd5 e2 Rc5 Rg8 Bg6 d1N+ Kd3 Ba5 Bce3 e1B Rgc2 Rg7 R2c3 Kg2 Qd5+ Kf1 Rc6 Rf7 Bc5 Nf2+ Kd4 Nh1 Rc4 Bh2 Bg1 Rf2 Rc3 Na4 Kc4 Rd2 Kb5 Nb6 Bgd4 Bg1 Rcc1 Nc8 Bb6 Be3 R1c5 B3g5 Bf2 Bgf6 Bg1 Bg7 Bh2 Ra8 Ba7 Nb6 Bb8 Ra7 Ng5 Kf2 Nh3+
1R4n1/nK2P2r/1PPR4/PP2q2p/N2b1Bk1/1R2qN1b/2r1Qnpb/1N6 b - - 0 1 illegal: No proof kernel
R2n3q/3pP1RP/3k1p2/2r1qb1Q/RNNP1P1K/P2qbNB1/2p1r3/4b3 b - - 0 1 legal: proof: d4 a5 g4 e5 b4 b5 bxa5 h5 gxh5 b4 a6 Nc6 c3 exd4 Bh3 d3 Bg2 Nd4 cxd4 Ra7 Ba8 Rxa8 h4 Ke7 e4 g5 f4 c5 Kf2 g4 Kg3 f6 a7 d2 e5 b3 a3 c4 h6 b2 e6 c3 h5 c2 h7 Nh6 Rh3 Bb7 Kh4 g3 Nf3 g2 Rg3 g1B Rg7+ Kd6 Nc3 b1Q Nd5 Be3 Nb4 Rc8 a8N Rc5 Nb6 Nf7 h6 Be4 Bb2 Bf5 Bc3 Qa2 Rb1 Qd5 Rb2 Rg8 h8R Qe5 h7 Qb8 Qh1 d1Q Be1 Nd8 Bg3 Qd3 Rb3 Be7 Rc3 Re8 Rc4 Nb7 Qh2 Bd8 Qh3 Bc7 Qg4 Nd8 Qh5 Qc8 N6d5 Ba5 Nb6 Rg8 e7 Qb8 N4d5 Be1 Ra4 Qc8 Nb4 Qa8 Rf7 Rg6 Rg7 Rg5 Bf2 Rg2 Bg3 Re2 Rhg8 Qad5 Re8 Qg8 Rf8 Qh8 Re8 Nb7 Rea8 Nd8 Nc4+
1kBrqb2/rBpn1qN1/1r2P3/1P1P1r2/1B4N1/P1Rb4/2P2rnb/QN1K4 b - - 0 1 illegal: No proof kernel
rn1NR1nq/rP2n1B1/n2k4/1RP3Rn/2QB4/pbb4n/PPb3P1/1B5K b - - 0 1 illegal: No possible last move, all moves rejected
2rnq1qR/n2npP2/K1br3B/2NRP1P1/3b2q1/1P3P2/2BB1Rnq/1k4Q1 b - - 0 1 illegal: No proof kernel
2N1r3/3b1QPK/2P1p3/1N3RRP/P3k2b/r2p1rqn/2nNP1q1/1q1BR1n1 b - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 f4 axb4 fxg5 h6 g6 Ra7 g7 Ra8 g4 Nf6 g5 Ng8 g6 Qb6 Bf4 Qd8 Bg5 hxg5 Kf2 d5 Kg3 Kd7 Kg4 Ke6 h4 Ke5+ Kg3 b5 c4 f5 a3 e6 h5 d4 c6 b3 c7 b2 c5 g4 c6 b4 Bg2 b3 Ra2 f4+ Kh2 g3+ Kh3 f3 Kg4 f2 Bd5 f1Q Qc2 d3 Qd2 g2 Nc3 b1R Nh3 g1N Ng5 b2 Qc1 Nh6+ Kh4 Qd6 g8R Be7 Nb5 Qg2 Bb3 Na6 Qf1 Bd7 c8N Ng4 Bd1 Nb4 Qf7 Nf2 a4 Nc2 Ra1 Nfh3 g7 Rh6 Rf8 Rf6 Nf3+ Ke4 Rh2 Rc1 Rh1 b1Q Rh2 Qh1 Rg2 Qc7 Rg5 Qg2 Nb6 Re8 Nd2+ Ke3 Nc8 Rf3 Qg8 Qb8 Rf5 Qd6 Nc4+ Ke4 Qf8 Nb4 Qf7 Rc3 Nd2+ Ke3 Nd4 Ra3 Nb5 Nc2 Re5+ Kf2 Rf5 Nb4 Bc2 Qb3 Re1 Ke3 Bd1 Bf8 Rg3 Nc2 Rg6 Qb1 Rg4 Qdh2 Rg3 Bd6 Rg6 Bg3+ Kg4 Nf2+ Kg5 Nfh3+ Kh6 Bh4 Kh7 Qhg3 Nf1+ Ke4 Rg4+ Rf4 Rgg5 Rf3 Nd2+
2n1R2Q/N1NP3r/2r3b1/npR5/1N2PRpP/n2P4/kqbb1KPn/3rB3 b - - 0 1 illegal: No proof kernel
rN4BB/1r1N2qn/bb1nP1qp/6PP/P4bB1/N1nQpk2/P6R/2K4n b - - 0 1 illegal: No proof kernel
N2rbNR1/K1n1q3/1BPQ2pP/1k2RbP1/1N1q4/2b1P3/P5np/b1R2n1r b - - 0 1 illegal: No proof kernel
1Q1R4/Pp6/nR4Nn/KPbPN2k/2br4/p1Pqr2b/1P2R3/qNrrB3 b - - 0 1 illegal: Other
3n2Q1/PP2pP1r/4b1p1/B2RPqp1/1n2r1r1/KB4N1/1RPbnkR1/b4B2 b - - 0 1 illegal: No proof kernel
Bqqr2N1/1qP1k1n1/P7/PN1prrP1/p2B4/pRN1n3/Pb2KQ2/5B1b b - - 0 1 illegal: Other
8/Nrp2R1P/1b2n1Q1/R4b2/P1PrkPpb/q1p3PB/nr1B1BK1/1R2r3 b - - 0 2 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 Nc3 d5 Qe2 d4 Qxh5+ Kd7 Qh4 dxc3 Qh7 Ke8 f4 Kd7 Kf2 g5 d4 b5 a4 g4 h4 b3 h5 b2 f6 Ke6 h6 b1R f7 b4 Qc2 b3 h7 b2 Rh3 Nd7 Rf3 Nc5 Qe2+ Kf5 d5 e5 d6 e4 d7 e3+ Kg3 Nf6 Ra2 Nd5 Ra1 Qe7 d8B Rb8 Bd2 Re1 Rb1 Nb4 Kh2 Rb5 Rh3 Ne6 Rh5+ Ke4 Nf3 Rb7 Ne5 Na2 Nc6 Qa3 Ra5 Bc5 f8R Bb6 Rf7 Rf8 Bg5 Rd8 Bh4 Rd4 Na7 Bd7 Qd1 e2 Bf2 Bc8 Qb3 Bd7 Qb5 Bc8 Qh5 Bd7 Ra1 b1R Kh1 Rb2 Rb1 Nc5 Qh6 Bf5 Qg6 Ne6 Kh2 Rc1 Kg1 e1B Bfe3 Bh4 g3 Qc5 Bf2 Qa3 Kh2 Rd1 Bh3 Re1 Kg2
1B5K/1Bk2PpR/4prp1/r5N1/2b2r1q/P1B1Pn1N/1P1nnQPN/b1r5 b - - 0 2 illegal: No proof kernel
n1n2R2/RP1RpnrB/2bP1p1b/3PB3/1bP2r1Q/5b1p/K1N2Pq1/2kB4 b - - 0 1 legal: proof: e4 b5 h4 c5 b4 d5 exd5 g5 a4 gxh4 Nc3 Bg7 Na2 Bh3 axb5 Bh6 b6 Bf8 b5 Bc8 Nb4 cxb4 c4 Kd7 g4 Kd6 d4 a5 Kd2 h5 Kc2 f6 Kb3 h3 g5 h4 g6 a4+ Kb2 b3 g7 a3+ Kb1 b2 b7 a2+ Kc2 b1N Kb3 h2 b6 h3 Qd2 Na6 b8R Nc7 b7 Na3 Bg2 Rh4 Qa5 Bg4 Bf3 Nab5 Qd2 Nh6 g8B Nf7 Bg2 Na7 Bh7 Bh6 Qe1 Bf3 Qf1 Rf4 Bb2 Nc8 Qd1 Qg8 Ne2 Qg7 Rf1 h1B Qb1 Ra5 Qe4 Na8 Rfd1 Rc5 Bf1 Qg2 Bc3 Rg4 Rd2 Rg7 Qh4 Ra5 Ng3 Rc5 Be2 Ra5 Bd1 Rc5 Rb1 a1B Ka2 Bb2 Nf1 Ba3 Rb5 Bb4 Ra5 Rb5 Ra7 Ra5+ Kb1 Ra3 Bb2 Re3 Ba1 Re4 Ne3 Rf4 Ka2 Kc7 Nc2 Kb6 d6 Bc6 d5 Kc5 Rd4 Qg5 Rd3 Bf3 Rda3 Qg2 Be5 Bc3 Nd4 Kb4 R3a5 Be1 Rc5 Kc3 Nc2+ Kd2 Bd3 Be8 Rc7 Kc1 Bh7 Bc6 Rd7 Bc3 Be4 Bb4 Bh7 Ncb6 Rbd8 Nc8 Rf8
Q5b1/3Rp1rN/n1BBPn2/P1b1pkn1/4R2b/pn1K1PR1/Pr2B2P/7b b - - 0 1 legal: proof: e4 a5 b4 c5 g4 h5 gxh5 a4 d4 cxd4 e5 f6 e6 Rh7 Nd2 Rh8 Nc4 Qb6 Ne5 Qa5 bxa5 fxe5 Ke2 b5 c4 g5 c5 d5 c6 a3 c7 g4 h6 d3+ Ke3 g3 h7 b4 Bd2 d4+ Ke4 b3 Bb4 b2 Qc1 b1N Qc3 d2 Bd6 d1N Nh3 d3 Nf4 d2 Qb2 g2 Rg1 Na6 Rh1 g1B Bc4 Bb7+ Bd5 Bg7 c8B Bf6 Qb3 Ndc3+ Ke3 d1B Qa4+ Kf8 Qb5 Kg7 Bd7 Nd2 B7c6 Bh4 Bc4 Kf6 Qd5 Nce4 Ng6 Nb3 Nf8 Bc2 Rd1 Ng5 Be2 Rb8 Rd4 Bg6 Re4 Kf5 Kd3 Ba8 Kc2 Nf6 Kd3 Rg8 h8R Rb4 Nh7 Rg7 Rd8 Bf7 Rd7 Bg8 Qb5 Na1 Qb8 Bb7 Qa8 Nb3 Re3 Rb5 Rg3 Rb6 Ba4 Bg2 f3 Bc5 Re1 Bh1 Bb5 Nd2 Bc6 Rb2 Rc1 Nb3 Rc4 Rb1 Ra4 Rb2 Re4
2q3Q1/pkpRP1p1/2n4b/P3R2B/4q2P/P2rRr2/BBPnp3/2N2nKb b - - 1 2 legal: proof: d4 e5 e4 f5 a4 h5 g4 Qe7 Nd2 Qa3 bxa3 hxg4 dxe5 Bc5 e6 Be7 e5 Bf8 Ne4 fxe4 h4 Kd8 f4 b5 Kf2 d5 f5 d4 a5 b4 f6 g3+ Kg2 b3 f7 e3 Ra2 e2 Bg5+ Be7 Qe1 b2 Qd2 b1Q Qd1 d3 Ra1 d2 Rh3 Bb7+ Nf3 Kc8 Bf6 Qb4 Kg1 g2 Ne1 Qe4 Re3 Nc6 f8R+ Bd8 Qb1 d1N e7 Rh5 e8B Rf5 e6 Rf3 Be5 Bg5 e7 Bh6 Bb2 Nf6 Qa2 Rb8 Qf7 Ba8 Qg8 Kb7 Bg6 Rd8 Bh5 Rd3 Rd8 Qa4 Re5 Ne3 Rd7 Ne4 Rb1 Nd2 Rd1 Qe4 Rb1 Rc3 Nd3 Rb3 Nc1 Rc3 Ra1 Rd3 Rb1 Rh3 Bd4+ Ka6 Nb3 Qf4 Na1 Nb8 Rdd5 Rc3 Nb3 Qf8 Rd7 Qc8 Kf2 g1Q+ Ke1 Qh2 Bg2 Qh1+ Kf2 Nef1 Nc1 Bd5 Rb3 Nc6 Be4 Rce3 Rd3 Kb7 Bb2 Qf3+ Kg1 Qf5 Rd4 Rd3 Bef3 Qh7 Rde4 Qf5 Bfg4 Qh7 Re3 Bh1 Bf5 Rf3 Be6 Qe4 Ba2
Nq2Rb2/2pN3B/2p1pk2/Q1PnR2P/r1PPPpR1/2nrN3/1r5p/4K2b b - - 1 2 illegal: No proof kernel
1R1n3r/2pBpNn1/2P5/2p1PpQ1/1P1Nn3/4q1R1/P1PkpN2/b2rn1KR b - - 1 2 illegal: No proof kernel
R1BBn1br/8/1pQPpqkp/1r1qb1r1/2BRP2P/PPpKn3/NRn5/8 b - - 0 1 legal: proof: f4 g5 c4 gxf4 b3 d5 cxd5 a5 Na3 a4 Nc4 a3 Nb2 axb2 h4 b1R e4 f5 Ke2 Kf7 g4 c5 d4 f3+ Kd2 f2 a3 c4 g5 c3+ Kc2 f4 d6 h6 d7 b6 d5 f3 Be2 f1N Ba6 f2 Rh2 Bg7 Kd3 Nc6 Ne2 Be5 g6+ Kg7 Rg2 Nf6 Bg5 Nd4 Nc1 Ne3 Na2 f1Q+ Qe2 Ndc2 d6 Qg8 d8R Be6 Bc8 Ne8 Rf2 Re1 Rd1 Ra5 Rh2 Qf6 Qh5 Nd4 Rb2 Rb5 Qg4 Bf7 Qd7 Ndc2 Qc6 Rg1 Rd2 Bd5 Rd1 Qge6 Rd2 Qef5 Rd1 Bg8 Rd2 Kf8 g7+ Kf7 Rd1 Kg6 Rd2 Bh7 g8B Rg2 Bc4 e6 Rd7 Bg8 Ra7 Bd4 Ra8 Qd5 Bf4 Rg5 Be5 Qf4 Bf6 Qf3 Bd8 Qf6 Ke2 Be5 Rd4 Rg2+ Kd3 Rg4 Ra6 Rg5 Ra8
3N4/p2prBnQ/1P4p1/R1q1brRr/3P2bP/3pNR2/P4qPN/3Kn1kn b - - 0 1 illegal: No proof kernel
rn6/2N2p1p/2pK2N1/BRQp4/1bPppPB1/2r3kP/4P1Pb/b1B1Nnq1 b - - 0 4 illegal: No proof kernel forced: bxLB
bB5R/2PKPPQ1/r5qq/n3B1PP/n5p1/3brR2/N5RQ/2b2k1b b - - 0 1 legal: proof: d4 c5 dxc5 e5 g4 b5 a4 h5 axb5 f5 e4 g6 f4 Bg7 fxe5 Bf8 Be2 Bh6 g5 Bf8 Bg4 hxg4 Nd2 Qf6 Nb3 Qd8 exf5 Rh6 f6 Rh7 Nd4 Rh8 Nf5 gxf5 Ke2 Kf7 Ke3 Ke6 Kd4 a5 b4 d5 h4 a4 c4 a3 f7 f4 h5 Kf5 c6 f3 b6 a2 b7 f2 e6 f1B c7 Qf6+ Ke3 Nc6 b8R Qh6 c5 Bd3 b5 Nge7 b6 Bb7 c8Q Na5 Kd4 Ra6 c6 Ba8 Kc5 Ke4 Kd6 d4 b7 Nd5+ Kd7 Ba3 c7 Nc3 Rh3 Na4 Qd2 Re8 Qh2 Qg6 Bf4 Bc1 Rb1 a1Q Rf3 Qa3 Bg3 Qf8 Ne2 Qfg7 Rb2 Q7h6 Rf2 Ke3 Be5 Bd2 Rg2 Bc1 Rb3 Kd2 Ra3 Ke1 Nc3 Kf1 Na2 Be4 Rc3 d3 Qd8 d2 Qf6+ Bf3 Rc8 d1B b8B Bc2 Qg7 Bfc6+ Kd6 Re7 Rh8 Re8 Rcg3 Bcb7+ Kd7 Bd3 Rb2 Bh1 Rbg2 Re7+ Kc8 Rd7 e7 Rd4 Rh3 Re4 Kd7 Re3 Rf3+
n3BQ1q/qkRNBR2/3b4/P5Pb/n5pK/P1p2r2/P1P1b2R/q1Q5 b - - 0 1 illegal: No proof kernel
1RRQ2q1/1PP2r1Q/1r3qbn/3qPR2/b1N1k3/2B2Pn1/2Pn1K1N/2r3r1 b - - 0 1 illegal: No possible last move, all moves rejected
1b4QK/1b2nbBB/QN1brn2/2R1B2P/2b1P3/r1P1PP1R/2k5/1q3r1r b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 h5 d3 hxg4 f3 f5 Nc3 e4 dxe4 c6 Nd5 cxd5 Bg5 f4 Bxf4 d4 Bh6 Bb7 Bc1 Bc8 Kf2 Kf7 Kg3 Ke6 Kf4 d5 h4 a5 b4 g5+ Kg3 Ke5 h5 d3 b6 Kd4 b7 Kc3 b5 d2 b6 a4 e3 d4 Ba6 a3 Be2 d3 Rh4 a2 Qe1 Nc6 b8B Ra3 b7 Bd6+ Kg2 g3 Rh3 g4 Qd1 Nf6 Rh4 Qb6 Rh3 Ne7 Qf1 d1B Bb2+ Kd2 Rb1 a1R Rc1 Re8 Bc7 Rb1 b8Q Bb7 Qc8 Qb5 Qe6 Rba1 Qg8 Qb3 Be5 Qb1 Bb6 Bb8 Bbd4 Bd6 Rh1 Bb8 Nh3 Bd6 Nf4 Bb8 c3 Bb3 Rh3 Bc4 Rd1+ Kc2 Nd5 d2 Nb6 Bf7 Bc4 Bd6 Kh1 g2+ Kh2 g1B+ Kg3 Bh2+ Kh4 g3 Kg5 g2 Kh6 g1R Be6 Rh1 Kg7 Bb8 Qa6 Bf4 Rg1 d1B Rg5 Be2 Kh8 Bc4 Bf5 Bg3 Bh7 Bh2 Bc7 Bd6 Re5 Ned5 Rg5 Re6 Re5 Ne7 Rc5 Qb5 Be5 Raf1 Bd4 Qb1 Be5 Ne8 Bg7 Nf6 Qf8 Bg3 Be5 Bf4 Qg8 Bg3 Bd4 Bgd6 Be5
qNqQb1N1/Bb4P1/P2B1P2/1Rr3nr/8/1q3r2/QnPrk1KP/1q5B b - - 0 1 illegal: No proof kernel
4Qq2/nbP5/rqb1N3/6P1/BP2P1bN/2Qr4/R1K4P/q1bNqrkR b - - 0 1 illegal: No possible last move
2k1N3/1B3r2/Nb4n1/rqRRQ2P/nP1b1P2/1P6/p4NPb/1b1nb1QK b - - 0 1 legal: proof: c4 b5 e4 f5 a3 d5 cxd5 b4 axb4 fxe4 Ke2 g6 Ke1 g5 b3 h5 f3 h4 Ke2 g4 Bb2 g3 Bd4 h3 Bf2 gxf2 Ra6 Rh7 Rh6 Rh8 Rxh3 Bd7 Rh7 Bc8 d4 Kd7 h4 c5 h5 a5 d6 e3 f4 a4 Kf3 e2 d5 e1B Rh4 a3 Qd3 c4 Qg6 c3 Rf7 c2 Be2 f1N Rf5 c1B Nd2 e5 Qg5 a2 Rg4 Qe8 Ne4 Na6 Nh3 Bg7 Nhf2 Ne3 Kg3 Rh7 Kh2 Ne7 Kh1 Nd1 Bf3 Ng6 Nf6+ Kd8 d7 e4 Rg3 e3 Rh3 Kc7 d8N e2 Nb7 Be3 Nc5 Qb5 d6+ Kd8 Re5 Bf5 d7 Bb1 Rd5 Bh8 Qe5 Rf7 Ne8 Bg7 Nfe4 Bg3 Nf2 Bh2 Be4 Bd4 Rc3 e1B Bf3 Bf8 Rc2 Bd6 Rc4 Bc7 Be4 Nb8 Na6 Bcb6 Rcc5 Ra7 Nac7 Ra4 Na6 Ra5 Qh8 Ke7 d8Q+ Ke6 Qc7 Nd7 Qa7 Ke7 Qe5+ Kd8 Nac7 Kc8 Na6+ Bc7 Rd6 Nb6 Bc6 Na4 Rdd5 Bb6 Qe3 Bh8 Qae7 Bd4 Q7e5 Bd2 Qe1 B2c3 Qg1 Be1 Bb7+
1rBB2k1/1Pr3n1/3PRPp1/1K1n4/4Q3/2r1qRPr/Pbb2R1b/r1QN4 b - - 0 1 legal: proof: e4 d5 b4 f5 exf5 g6 c4 b6 cxd5 Nc6 h4 Nb8 h5 Qd6 h6 Qf6 Qc2 Qb2 Na3 Qg7 hxg7 a6 Qc5 bxc5 b5 a5 Nc2 Kd8 Nb4 axb4 Ne2 Kd7 Ng1 Ke8 Ke2 Kf7 Kd3 e5 Kc4 h5 f4 e4 d4 b3 f6 h4 f5 b2 d6 b1R d5 h3 b6 h2 d7 e3 d8Q e2 b7 e1Q Ba3 Rh3 Be2 Nc6 Bc1 Nh6 g8R Bd6 Bg4 Rbb3 Be3 Nb4 Rb1 Rc3+ Kb5 c4 Bd4 c5 Rb2 Qe3 Ne2 Rb8 Rf1 h1R Rf3 Ra1 Re8 Bh2 d6 Nd5 g3 Be6 Qb6 Bc8 Re6 Kg8 Qc7 Bd7+ Ka6 Ba4 Ka5 Bc2 f7+ Kh7 f6 Nf5 f8Q+ Ng7 Qfe7 Kg8 Ng1 Rb3 Ka4 c3 Ne2 c4 Bb6 Bd1 Qcd7 c2 Qc7 c1R Nc3 Bc2 Nd1 c3 Bf5 Be4 Rd2 c2 Rdf2 Rc3 Qc6 Rcb1 Ka5 c1B Bd8 Bb2 Kb5 Bc2 Qc4 Rc1 Qe4 Qd4 Qd7 Rc7 Qc6 Qe3 Qc3 Bb1 Qd2 R1c3 Qc1 Bc2 Re5 Re7 Bc8 Rec7 Re6
1n1k1r2/p2b2bQ/2br3N/2P2r1P/1qP1PBbn/3Q2N1/3b1P1K/3RQ2R b - - 0 1 legal: proof: g4 b5 d4 f5 a4 h5 gxh5 e5 axb5 c5 Kd2 f4 dxc5 f3 e3 Ke7 Be2 fxe2 Ke1 Kf7 Qd4 exd4 Kd2 Ke8 Ke1 d5 c4 g5 h4 g4 b4 g3 e4 d3 h6 g2 b6 d4 b5 Bd7 b7 Rh7 b6 Rf7 h7 Bg7 h8Q Rf5 Qh7 Ne7 h5 Ng6 Na3 Nh4 Nc2 Qf6 Bf4 Kd8 Ne3 Qd6 Nh3 g1R+ Nf1 Rg6 Rd1 Qe7 Ng5 Rd6 Ng3 Qf7 Rh3 Qd5 Rh2 Qc6 Rh1 Qa4 Nf3 Qb3 Nh2 Qa3 Ng4 Bc6 Nh6 Qa4 Kd2 Qb4+ Kc1 d2+ Kc2 e1B Kd3 Ke8 Ke2 d3+ Kf1 Kd8 Kg1 Bd7 Kh2 Bc6 Ra1 d1B Rb1 d2 Rc1 Bg4 Rd1 Nd7 b8Q+ Ke7 Rb1 d1B b7 Bda4 Rd1 Bd2 Qbg8 Re8 b8Q Ref8 Qd5 Bab5 Qb7 Kd8 Qd3 Nb8 Qa6 Bd7 Qa1 Bbc6 Qc1 Bdc3 Qce3 Bd2 Qe1
Q1Kn2Q1/N1R1Q2N/2p1rP1P/2B5/b2bP3/P3n2k/3P1qrr/1R1n1b1r b - - 0 1 legal: proof: g4 a5 c4 f5 b4 d5 cxd5 h5 gxh5 e6 dxe6 axb4 e3 f4 Ke2 Qe7 Kd3 f3 Be2 fxe2 Kc2 Qd8 Kb3 Ke7 Kc4 Kf6 Kb5 Kf5 f4 Kg4 h4 g5 h6 b3 e7 b2 e8Q Nf6 e4 Ra6 h7 Nd5 h5 Bg7 f5 Re6 a3 Bd4 f6 Nc6 Qe7 Ne3 Ra2 Bd7 Qa4 e1R Nc3 b1B Qc5 Bd3+ Qcc4 Bf1 Qa5 b6 Ka6 b5 Kb7 b4 Ra1 b3 Qa8 b2 Qb4 b1N Nb5 Nc3 Nh3 Ncd1 Bb2 Kh4 Qc5 g4 Rb1 g3 Na7 g2 Qe7 g1R Ng5+ Kg4 Bc3 Rg2 Bb4 Qf8 Bc5 Nd8+ Kb8 Ba4 Kc8 c6 Rb7 Qg7 Rc7 Qg6 Rg1 Qf5 Rh1 Qf2 h6 Rg8 h8Q Rh2 Nh7 Kh3 Rg1 Rgg2 Qg8 Rh1 Rb7 Re2 Rb1 Rgh2 Rg4 Qf4 Rg7 Reg2 Qef8 Qf3 Rc7 Qf2 Qe7
2B1Bn2/N1Rq4/6bP/r1PqP3/3B4/1NQpPk1Q/n4q1P/K1nb1rn1 b - - 0 1 legal: proof: d4 h5 b4 a5 f4 axb4 a4 c5 dxc5 e5 fxe5 Rh6 g3 Be7 Ra3 Bh4 gxh4 Rh7 Rg3 Rh8 Rg4 hxg4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb2 Ke4 h5 f5 a5 b5 h6 d5 a6 g5 c6 g3 c5 d4 c7 g4 a7 f4 e3 b3 Qe1 f3 Qf2 b4 Bb5 g2 Bd7 g3 Bd2 Nf6 Bc1 Nh7 Ka1 b2+ Ka2 b3+ Ka3 Rf8 Be8 Na6 Qf1 f2 Bb5 Nb4 Be2 Bg4 Qd1 f1Q c8B Rf6 Bc4 Nf8 Ne2 g1Q Bg8 g2 Qc2+ Nd3 Bf7 Qf5 Be8 Qd5 Bd2 Qe1 Rf1 g1N Nc1 Bd1 Bc3 Qg3 Rf2 Qfe6 Rg2 Rf1 Rf2 Qec6 Rf7 Qf2 Rb7 Kf3 Re7 Nf4 Qf5 Qce6 Rc7 Qed7 Qh3+ Qg3 Bb4 Nfe2 Nc3 b1B Kb2 Bg6 Nb5 d3 Kb1 b2 Nb3 Nc1 Bc3 Nce2 Ka2 b1N Bd4 Nbc3+ Kb2 Ne4 Ka2 Nc1+ Kb1 Nc3+ Kb2 Rb8 a8Q Rb6 Qa4 Ra6 Qb4 N3a2 Na7 Ra4 Ka1 Ra5 Qe6 Qg2 Qc3 Qf2 Qh3+
b6b/P1K2kr1/4Q2b/2P4r/2NP2nQ/B2pRNrR/P2PQq2/1rnb4 b - - 0 1 legal: proof: g4 a5 f4 e5 b4 exf4 bxa5 h5 gxh5 c5 e3 d5 Nf3 c4 Ng1 d4 Bd3 cxd3 exd4 Ra7 Ba3 Ra6 Bc1 Ra8 Kf2 g5 Kf3 b5 Ke4 f5+ Ke5 b4 h4 g4 c4 g3 a6 f3 c5 g2 a7 b3 h6 f2 h5 f1B h7 f4 h6 b2 Rh5 f3 Rf5 f2 Qg4 Qf6+ Kd5 Kf7 Qf4 Be2 Qe3 f1R Qh3 Bb7+ Kc4 Rf3 Kb5 Bd1 Ne2 g1B Rh5 Bg7 Na3 Nc6 Kb6 b1R+ Kc7 Rg3 Nc4 Be3 Ng1 Qf2 Ba3 Nf6 Nf3 Na5 Qf5 Bd5 Rh3 Nb3 Qg4 Rhg8 h8Q Nc1 h7 Beh6 Qe4 Ng4 Qe2 Rgb8 Qd8 Bh8 Qd6 Rg8 Qc6 Rae8 Qb6 Ba8 Qc6 Bf6 h8Q Re5 Qce4 Rg7 Qf5 Bg5 Qh4 Bh6 Qfe4 Rb8 Rb1 Rh5 Rb6 Be5+ Rd6 Bf6 Re6 Rb1 Re8 Rg6 Qc6 Bh8 Re3 Rg7 Qe6+
k3N3/1rqP2Pn/P3KP1N/rQ2n1Bb/2r1N2n/1p1qq2R/2R2P2/3n1Q2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e4 f5 exf5 g6 h4 Ra3 g4 Ra8 h5 Ra5 h6 Na6 g5 Ra3 Be2 Nf6 Bh5 gxh5 g6 Ra5 g7 Nb8 g8N Bg7 hxg7 Ra8 Ke2 Kd7 Kf3 e5 a4 c5 d4 Kc7 a5 b5 d6+ Kb7 d7 c4 d5 b3 d6 h4 Qc2 h5 Ne2 b2 Bd2 b4 Bf4 b3 Ra3 c3 Rh2 h3 Bg5 h4 Qd1 c2 Bc1 e4+ Kf4 e3 Ke5 Nh7 f6 Qc7 d8Q Bg4 Qe7 Nc6+ Kd5 Bh5 d7 Ne5 Bd2 c1R Rh1 h2 Qe8 h3 Ra2 Rc4 Re1 h1N Nh6 h2 Nf7 Ng3 Nh6 h1Q+ Ke6 Qe4 Nec3 e2 Bg5 Qd3 Ne4 Nf5 Nbd2 b1N Rh1 e1Q Rc2 Nc3 Rh3 Qee3 Qf1 Nd1 Nd6+ Ka7 N2e4 Nh4 Qe7 Rhb8 Ne8 Rb7 Qc5+ Kb8 Qb6 Ra7 Qb5 Ka8 Qb4 Rb5 a6 Ra5 Qc5 Rb7 Qb5
8/P1P1rQ2/3q1QP1/1KPq1r2/4nb2/Q1p3P1/1krRNrNn/q2q1BB1 b - - 0 1 illegal: No proof kernel
1Rnn1Nr1/4R1pB/r1q1nQ2/1b1P1Ppk/P6q/2P3P1/4BK2/R1b2Qn1 b - - 0 1 legal: proof: e4 c5 b4 d5 Bb2 f5 exf5 d4 Nc3 a6 Nb5 d3 Bf6 h6 Bg5 hxg5 Bxd3 Kf7 Be4 Nf6 Bc6 Ng8 Bd7 Rh3 Nd4 Rh8 Nc6 a5 bxa5 Rh5 Nb4 cxb4 Qb1 Rh3 Qd1 Rh8 h4 e5 d4 b5 f4 e4 a4 e3 c3 b3 d5 b4 a6 b2 g3 b1Q f6 Kg6 a7 b3 f7 e2 f5+ Kh5 Rh2 b2 Rh1 Qe4 Kf2 b1N Nh3 Na3 Be8 Bd7 Qf1 e1N Rg1 Nb5 Nf4+ Kg4 h5 Qc7 h6 Qc6 h7 Nc7 Ne6 Nf3 Rh1 Ba3 f8Q Ng1 Bg6 Bc1 Qf6 Ne7 Nf8 Rg8 h8R Nc8 Bh7 Ne6 Rh6 Qd6 Rh1 Nc6 Rh2 Ncd8 Rg2 Rb8 a8B Kh5 Bb7 Ra8 Ba6 Qc6 Be2+ Qg4 Rb1 Ra6 Rb7 Nf3 Rg1 Qh4 Rc7 Qd6 Rh1 Bb5 Re7 Qc6 Qg2 Bf4 Ra1 Bc1 Qf1 Na7 Rb1 Nb7 Ng6 Rb8 Bd3 Ng1 Ra1 Rc8 Rd8 Ra8 Rdd7 Rh8 Nf8 Nbd8 Rb7 Nc8 Rb8 Rg8 Be2+
1kr1Q2q/RP3R2/rP3pPb/nKQ1Q3/1P2nn2/qBP5/1p6/N1nb1B2 b - - 0 1 illegal: No proof kernel
1n3B2/2Nb1R2/NpP1RnKn/6P1/1kP1npP1/1n6/1qqrNrP1/2Q4Q b - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 f4 axb4 fxg5 e6 e3 Be7 Bc4 Bd6 Bd5 Bg3+ hxg3 exd5 Kf2 Ke7 Kf3 f5 Kf4 h5 c4 b3 a4 d4 c6 Kd6 g4 Kc5 a5 d5 a6 b2 e4 h4 e5 d3 e6 d4 e7 d2 e8Q d3 a7 b6 Qe5+ Kb4 Ra3 h3 Qde1 h2 Q5e4 Qf6 Qe6 Nh6 Rc3 d1N Na3 b1N Ne2 d2 Re3 Bd7 Nb5 Rf8 Nbd4 Ndc3 Nb3 d1Q Rf1 h1N Nc5 Ng3 Re5 Nd2 Ba3+ Ka5 Qf7 Qc2 Qh5 Nce4 Qc1 Nb3 Re6 Qfb2 Qh1 Nf6 Rf3 Nge4 Rf1 Na6 Rf3 Rac8 a8N Rcd8 Nc7 Rf7 Na4 Nb8 Bf8 Bc8 Nc5 Rd2 Rd3 Kb4 Rd7 Rh7 Rde7 Bd7 Rf7 Nd6 Kg3 Nde4+ Kh4 f4 Nd4 Rf2 Ne2 Nfg8 Kh5 Ngf6+ Kg6 Rh8 Be7 Rd8 Bd6 Bc8 Be7 Rd2 Bf8 Bd7 N5a6+
1nQ4K/b2PPP2/1pR4P/n1B3p1/2NrkqB1/1b1P4/1B1r1pq1/N2n3Q b - - 0 1 illegal: No possible last move, all moves rejected
2r2knK/q1b3Qp/p2P2P1/2P1B2b/2q4R/P1pN4/nRn2N1P/b4NQ1 b - - 0 1 legal: proof: e4 c5 f4 d5 b4 dxe4 c4 b5 cxb5 g5 fxg5 a6 b6 c4 Be2 Ra7 Bg4 Rc7 b7 Rc5 Bh3 Bxh3 bxc5 Bc8 Ke2 e5 Ke3 f5 d4 c3 g4 Nh6 d5 Qc7 g6 Nc6 b8N Ng8 g5 Bd6 g7 Nb4 Nc6 Qa7 Nd2 Bc7 Nf1 Kf7 a3 Na2 Nb4 Ke8 Rb1 f4+ Kf2 f3 Ke3 f2 Nh3 Be6 Rg1 Bf7 Nd3 Bh5 Rg4 Ke7 Rh4 Ke8 Ng3 f1Q Rb2 Qf7 d6 Qc4 Nf1 Kf7 g6+ Ke8 Kf2 e3+ Kg3 e2 Bf4 e1N Nhf2 e4 Be5 Nc2 Kf4 e3+ Kf5 e2 Qb1 e1B Qc1 Nh6+ Kf6 Bd2 Qa1 Bc1 g8Q+ Kd7 Qa8 Rc8 Kg7 Ke8 Qb7 Ng8 Kh8 Kf8 Qb5 Nd4 Qd7 Nc2 Rb4 Bb2 Qd1 Ba1 Rb2 Qa8 Q1g4 Qb8 Qg1 Qa7 Qg7+
b1n3QB/R3p1N1/1Q1PP3/1K1Pp3/BN5b/2P4r/qPp3q1/1q1n1Nkq b - - 0 1 illegal: No extended proof kernel
KQ2B1R1/PPr1q1b1/3pq1Bn/2p5/PQP1br1N/q1Ppq3/4k3/4R1Q1 b - - 0 1 illegal: Other
1br2N1b/PpBq3B/1r3q2/pn1r4/3P1Nr1/3K1p2/PR1P2P1/1QkBQ3 b - - 0 1 illegal: No possible last move, all moves rejected
QR2q3/5R1q/1rr2p2/P1P1PPBr/B1p1rpK1/1rP1k2n/5Q2/n2QN3 b - - 1 2 legal: proof: f4 a5 g4 c5 d4 e5 b4 h5 gxh5 axb4 Nh3 c4 Ng1 Bc5 dxc5 Qe7 Nf3 Qf6 Ng1 Qd8 h3 g5 f5 b6 Qd2 g4 Nc3 g3 Nd5 Bb7 Nf4 Bf3 Qd1 Bg4 hxg4 exf4 e4 Ke7 Ke2 Kf6 Kf3 Ke5 a4 d5 g5 b3 h6 b5 h7 f6 a5 g2 g6 b4 g7 b2 Be2 b1R Rh2 b3 Bd3 Kd4 e5 b2 Ra2 Ra6 Bd2 Nh6 g8Q Nf7 Qg3 Ng5+ Kg4 Rc6 Kh5 Na6 Qgg4 Nb4 Rh4 Nh3 Bc3+ Ke3 Nf3 g1R Ne1 d4 Qg2 Qe8+ Kg4 Rh1 Be2 d3 Ra3 d2 Rb3 Rg1 Rh5 Rf1 Rg5 Rf3 Rg7 Ra1 Qf1 b1R Rf7 Ra3 Rb2 Rf2 Bf3 Rb3 Bd5 Re2 Be6 Na2 Bd7 Nc1 Qg2 Rbb6 Qf1 Nb3 Qf2+ Ke4 Bd4 Na1 c3 Re3 Rb5 Rb3 Rb4 Rc8 Ba4 Rcc6 Qg1 Re2 Bf2 Re3 Bh4 Re2 Qc1 d1Q Bg5 Qdd7 Qd1 Qa7 Qh2 Ke3 Rb5 Rd2 Qg2 Rd4 Qb2 Re4 Qg2 Rg8 h8Q Rg6 Qg8 Rh6 Qf8 Rh5 Qgc2 Qee7 Qa8 Qb8 Qa2 Qh8 Qg2 Qee8 Qh2 Qh7 Qa2 Ra6 Rb8 Rab6 Qf2+
2r1k3/1P1RNP1n/Q1P4p/2r1P1r1/n3ppp1/1bNR1B2/q1qQ1K1P/7N b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Na6 e4 Qc7 e5 Nb8 Qd4 Qd8 Qe4 fxe4 g4 Kf7 f4 Na6 f5 Nb4 f6 Nc6 Bg5 Ke6 f7 Nb8 Bf6 exf6 g5 f5 Ke2 Be7 Ke1 Bf6 gxf6 Bb7 Be2 Ba6 Bf1 Bc8 f8Q a5 b4 d5 c4 Kd7 b6 g5 b5 a4 b7 g4 b6 d4 Qh6 a3 c6+ Ke8 c5 a2 c7 d3 c6 f4 Ne2 d2+ Kf2 d1R Nbc3 Na6 b8Q Be6 c8N Qd3 b7 Qc2 Qa7 Ne7 Qg7 h6 Rb1 a1Q Bg2 Rg8 Bf3 Ng6 Ne7 Rc8 Rb3 Rc1 Rd1 Qaa2 Rd7 Nc5 Qa6 Nf8 Qh8 Rg5 Qg8 Bc4 Qd5 Na4 Qd2 Nh7 Ng3 Bg8 Nh1 Be6 Rb5 Bc4 Rbd5 Bb3 Rd3 Qcb2 Nd1 Rc5 Nc3 Qc2 f7+
4Rn2/k1bb1r2/1Q1P3B/1BPQ1P2/p3pn2/1N1p3r/rR3PpP/1K3b1R b - - 0 1 legal: proof: e4 c5 g4 b5 d4 cxd4 a4 f5 axb5 Na6 gxf5 Nb8 Bg5 d5 Nc3 d3 Bc1 d4 Nce2 Qd6 Nf4 Qd5 Ng6 hxg6 exd5 g5 Bd2 g4 Be3 Be6 Bc1 Bc8 Kd2 Kd8 c4 Kc7 b4 Kb6 Qe2 e5 Qe3 g5 Qe4 a5 c5+ Ka7 Qf3 g3 Ra3 g2 Kd1 g4 Rc3 d2 Kc2 d1B+ Kb1 g3 Rc2 Nd7 Rb2 Be2 Bh6 Ngf6 d6 e4 Qb3 Nd5 Nf3 g1R Nd2 Nf4 Qd5 Be7 Nb3 Nf8 Qc6 Bd8 b6+ Ka6 b7+ Ka7 b8R Bd7 b5 Bc7 Rc8 g2 Rd8 a4 Re8 Rb8 Qd5 Rb7 b6+ Ka6 Bg5 Rh3 Bh6 Ra7 b7 Bc4 b8Q Rb7 Qc8 Ka7 Kc2 Ba6 Be2 Ra1 Bb5 Ra2 Bc6 Bf1 Kb1 d3 Bb5 Bb8 Qcc6 Bc7 Re6 Rb8 Re5 Re8 Re6 Re7 Re5 Rg7 Re8 Rf7 Qb6+
2n5/B2B2P1/1kp1b3/pprb1n2/1nP1pK1P/P4NNp/1NQ3qP/3Q3R b - - 0 1 legal: proof: f4 a5 b4 g5 b5 g4 a3 c6 Ra2 Qb6 Rb2 Qc7 Rb4 Qd8 Rc4 Na6 bxc6 Nb8 c7 Bg7 Rc5 Bf8 Rc6 dxc6 e4 h5 g3 b5 e5 h4 e6 h3 Ke2 Rh4 gxh4 Bh6 Ke3 Bg5 fxg5 Qd5 g6 Qxe6+ Kd3 Qe2+ Kc3 Be6 Bg2 Nd7 Bb2 Nh6 Ba1 Kf8 Bf3 Rd8 Bb2 Nb8 Bd5 Bc8 Be4 Rd5 Bg2 Ng8 Bf1 Ke8 Bc1 Rh5 Kd4 Rh7 Kc3 Rh8 g7 Kd7 Kd4 f5 c4 g3 Qb3 f4 Nc3 f3 Na4 g2 Qc2 f2 Nb2 Rh5 d3 e6 Bf4 Rc5 Bg3 Qd2 Ke4 e5 d4 Ne7 d5 Na6 d6 Nb4 Be2 f1B Bh5 Be2 Bg6 Bg4 Nf3 g1N Bh7 Qg2 Bf5+ Ke8 Ke3 e4 Be5 Bh5 Kf4 Bf7 Bg4 Bd7 c8N Kd8 Bf5 Bg8 Bg4 Bf5 d7 Bf7 Nd6 Kc7 Qa4 Nc8 Qc2 Kb6 d8Q+ Ka6 Qd7 Bg8 Qd8 Bd7 Nf5 Ne2+ Kg5 Ka7 Ng3 Nd4 Kf4 Bf7 Be6 Nf5 Bb8+ Kb7 Qc7+ Ka6 Qd6 Kb6 Qd4 Ne3 Bf5 Bd5 Be6 Nf5 Qdd1 Be8 Bd7 Bef7 Ne2 Bg8 Ng3 Bge6 Ba7+
1qbqQ1K1/rP6/pB1ppp1B/B1R3n1/Qr1PN3/1kPP3p/1b2P3/4N3 b - - 0 1 illegal: No proof kernel
b2B1kB1/Rn2Pn2/1B1P1n2/2b1qn1P/b4p2/2nNQ3/r1PrRP1K/2Q2r2 b - - 0 1 illegal: No possible last move, all moves rejected
2nr1RQ1/7n/5rRk/2nPB2p/1b1rNPnP/QQ1bPP2/5q1n/2q2B1K b - - 0 1 legal: proof: d4 d5 c4 b5 a4 e5 g3 f5 Nd2 f4 gxf4 Qg5 Ndf3 Qd8 axb5 dxc4 d5 Nf6 Nd4 exd4 Ra2 Ng8 Ra3 Nc6 Ra1 Nb8 b4 Kf7 h4 Kg6 b6 a5 b5 h5 b7 c5 b6 d3 Rh2 c3 Rb1 c2 Qd2 c4 Qc3 a4 Ba3 c1R+ Kd2 Bf5 Ke3 d2 Kf3 d1N Kg2 Bd3 Qd2 c3 Rb2 c2 Rh3 Ra6 Rf3 Ne3+ Kh1 Rd1 Rh3 c1Q Qb4 Nc6 b8Q Kh6 b7 g5 Qa8 g4 b8Q g3 Qa5 g2+ Kh2 Nf6 Rb6 Bb4 Qbb7 Nh7 Nf3 g1N Qf7 Ng4+ Kh1 Qf6 e3 Ne7 Qb8 Rd8 Re6 Nc8 Nd2 Nf3 Ne4 Nfh2 Bb2 a3 f3 a2 Rg3 a1N Be5 Nb3 Qa3 Nc5 Re8 Qf5 Qg8 Rf6 Rf8 Qg5 Bc7 Qe5 Qb6 Qeb2 Be5 Qf2 Qb5 Bb1 Qc4 Rd4 Qcb3 Bd3 Bd6 Ne5 Rg5 Neg4 Be5 Bb1 Rg7 Bd3 Rg6+
1r1B4/3r3n/Bq2PqbR/1p3Nb1/1PN3kB/bKP2Pr1/2n1q1P1/Q2r2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1bbb2Q1/N1bP2Pp/2nN2kn/3P4/1q2rRq1/2rRq2P/1B1PQ3/1N3K1n b - - 0 1 illegal: No proof kernel
KB2q3/p6R/2P3Nq/nrbn2n1/3bR1bQ/1kP1PQn1/Pq1PB1r1/1B6 b - - 0 1 illegal: Other
rBNbrn2/RK5n/PNPrP1p1/3qn3/nNr5/QR5b/2QP2P1/r3k3 b - - 0 1 illegal: No proof kernel
bBr3nN/2R4N/kbb2P2/P2p1B2/rP1P1qQq/1rq1p3/2n1PQ1B/2K5 b - - 0 2 legal: proof: g4 a5 b4 h5 a4 f5 gxf5 b6 Ra3 b5 Rg3 axb4 c3 b3 Rg4 b4 cxb4 hxg4 a5 c5 h4 e5 f4 g5 h5 c4 h6 g3 f6 g2 d3 g4 Kd2 c3+ Ke3 e4 h7 g3 f5 c2 Kd2 b2 Qe1 Bb7 Nc3 b1B Qf2 Nc6 Nd5 Bc5 Ne7 Nd4 Nf3 g1R Ng6 g2 Ng5 Bb6 Rh2 d6 f7+ Kd7 f8B Kc6 Bh6 Kb5 Rh3 Ka6 Qf3 Rc8 f6 Ba8 Qf4 Qc7 Qf2 Ba2 Rf3 B2d5 Rf5 Bdb7 Rc5 d5 Bf8 Qe5 Bd6 Rh1 Bb8 g1Q Qg2 Qd6 Rc7 Qgh2 Qf2 Bc6 Bh3 Qde5 Bb2 Ra1 Bf5 Ra4 Bc3 Nb5 Bb2 Na3 Ba1 Qd6 Be5 Qh3 Bh2 Qf4+ Kc3 Qhg4 d4 c1Q+ Kb3 Qce3+ Kb2 Nc2 Kb1 Nh6 Kb2 Rhe8 h8Q Ng8 Qg7 Qh4 Nh8 Re7 Qf8 Rg7 Nh7 Rg3 Qg7 Qd2 Qg1 Rd3 Q7g4 e3 Q1g3 Rda3 Kb1 Qc3 Qf2 Rb3+ Kc1
2Kbnq2/1B6/N1b1n1p1/1r1PPR2/2QPkBPQ/4rb2/2P2pq1/3n1BNr b - - 0 1 illegal: No proof kernel
1NrnN3/p1P1b2b/P2q2Pn/QRb1n3/4p2k/QQ1rq1r1/3RP1P1/4BK2 b - - 0 2 illegal: No proof kernel forced: bxLB
4Bb2/2qr1p1b/N2nP1p1/1Q1N1Nq1/q2k4/PQrP1nP1/nBP2b2/3K2R1 b - - 0 1 illegal: No proof kernel
7R/2Q2rp1/5BK1/br1nPP2/2nQR2P/1Qq3Pp/Pq1N1Nbq/r2n3k b - - 0 1 illegal: No proof kernel
3nqQ1q/1rNPPp2/qNr2RR1/1b5P/n2knr2/1P1Qp2Q/2B2P2/b4K2 b - - 0 1 illegal: No proof kernel
1Br1nQr1/qkp1R1pb/bN3P2/K2R3N/P4QPP/b7/qnP1Q3/5nq1 b - - 1 2 legal: proof: e4 e5 b4 a5 g3 f5 Bg2 axb4 exf5 h5 d4 h4 dxe5 h3 Qd2 hxg2 Qd4 Na6 Qd1 Nb8 Kd2 d5 a4 Kd7 f4 Kc6 h4 b5 g4 d4 f6 b3 f7 b4 f5 b2 e6 d3 e7 b3 Kc3 d2 Kb4 Nf6 Rh3 Nd5+ Ka3 Nd7 Re3 Rg8 Rd3 Ne3 Kb4 Nf1 Rd5 Ba6 Nh3 g1Q Nc3 b1Q Nf4 b2 Nh5 Qb8+ Ka5 Qa2 e8Q b1B Qe3 Nf6 Qde2 d1N Qf4 Kb7 Be3 Ne8 f6 Ba3 f8Q Qa7 Bd4 Rc8 Bf2 Qa8 Ba7 Nb2 Bb8 Qaa7 Qc1 Qc4 Qf4 Ba2 Re1 Qb3 Rf5 Qe6 Nd5 B2c4 Rg5 Bd3 Nb6 Qa2 Re5 Bh7 Re7 Qd4 Rd1 Qg1 Rd5
1Qb1N1nk/B1r1bR1n/3pPn2/3P3P/r4pB1/3N2Pn/b1QN2P1/1qn4K b - - 0 1 illegal: No proof kernel
1r2N2n/3QNB2/Kn6/pQ2qQ2/2PRpnbB/5Pr1/2PbP1P1/k3bn1n b - - 0 1 illegal: No proof kernel forced: bxLB
2rk1R2/1K5b/1np2Q1R/1r3pP1/PNP3RB/5rQn/1bP1rP2/2q1nN1r b - - 1 2 illegal: No possible last move
N4BQ1/b2n1rrP/1P1Q3K/p7/Pk2npq1/bB3P1Q/r4bP1/1bn2R1N b - - 1 2 illegal: No possible last move, all moves rejected
1b2b3/p3K1n1/PBP1PNQr/1n4qP/3RP3/pQ3bRr/q7/BB1bb2k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Nf6 d4 cxd4 a5 Ng8 Nc3 Rh7 Na4 bxa4 Qd3 Rh6 Qd1 Rh8 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 Kf5 g5 b4 g4 h4 g3 e6 d3 e3 d2 a6 g2 c3 Nf6 h6 a3 h7 Ne8 b5 Bb4 b6 Nc6 b7 Ng7+ Kf4 f5 b8B Nd4 Bb2 Nb5 Nf3 g1B Rh3 Bh2+ Rg3 d6 Bh3 Bd7 Ne5 Qg5+ Kf3 f4 Rg4 Bg3 Bc7 Raf8 h5 Be8 Bb6 Rf5 Ke2 Ke4 c4 d5 c5 d4 c6 Rf7 Qb3 d3+ Kf1 d1Q+ Kg2 d2 Nd7 Qc2 Rd1 Rf5 Ba1 Qa2 Rg1 Rd5 Rh4 Rd3 Bg4 d1B+ Kh3 Rc3 Bf5+ Kf3 Bb1 Rd3 Rg4 Bbe1 Rg2 Rc3 e4 Rd3 Rd2 Re3 Rd4 Kf2 Rd5 f3 Rd4 Bb8 Rg1 Rf8 Rg4 Rf6 Rg1 Rh6 h8Q Nf5 Qh7 Ng7 Rg2+ Kf1 Qg6 f2+ Rg3 Rd3 Rf3 Kg1 Re3 Kh1 Rf3 Qgd2 Kh4 f1B+ Kg4 Re3 Kg5 Bfe2 Kf6 Rc3 Ke7 Qg5+ Nf6 Rd3 Rf4 Rh3 Rg4 Bf3 Rg3
2r2Q2/1b2q1pr/4p1Br/1KQ1P1PR/2n1P1Qn/2k1b2R/PnqN1PB1/4r3 b - - 1 2 illegal: No proof kernel
4n1r1/1r1P2N1/pQkn1R2/2q1b1P1/qn1BP1N1/R2p4/b1PPb1n1/4Q1NK b - - 0 1 illegal: No proof kernel
k4b2/NPqrNb2/p2Pb2P/1Qr5/Pq2nBBn/bpPK1QR1/5r2/5N2 b - - 0 1 illegal: No possible last move, all moves rejected
5R1B/1r2q1Pn/P6p/1QN1R1bQ/p1K3P1/1BP2n2/2q1nRkP/3nrb1r b - - 0 1 illegal: No possible last move
2bR1K2/n2Nn2b/2PP1QQ1/B2k2q1/Rp1r1rb1/5Pbp/nP2NPR1/6n1 b - - 0 1 illegal: No proof kernel
1QbB1r2/N2bKQRN/r2pp1r1/R2P4/4PbP1/rkr1Pb2/1P1Q4/1n4q1 b - - 0 1 legal: proof: d4 b5 h4 c5 a4 g5 axb5 gxh4 e3 c4 Bd3 cxd3 f3 Na6 Nh3 Nc5 Ng1 Ne4 fxe4 Qc7 Na3 Qb6 Nb1 Qd8 Kf2 f5 Kf3 a5 Kf4 h5 Kg5 f4 g4 d2 c4 h3 c5 f3 c6 h2 c7 f2 b6 f1R b7 h4 b8Q e6+ Kg6 Ke7 Qa7 Kd6 Qf3 d1B Kf7 a4 Ne2 a3 Bd2 h3 Rg1 h1B Nbc3 a2 Rb1 a1R Rg2 h2 Rf2 Ba4 Qh3 Ne7 Rf3 Ra3 Rf2 Rg8 Qg2 Bh6 Ng3 Rg6 Ra1 Bf4 Be1 Nd5 Nh5 Kc6 Qb8 Ra6 Nb5 Nc3 Nf6 Nb1 Ba5 d6 d5+ Kc5 Rf3 Kc4 Nh7 Qh8 Ke7 Kb3 Na7+ Bb5 Bb6 Bbd7 Qd2 Bg2 Rh3 h1R Rh5 Rc1 Rg5 Rhf1 Ra2 Bf3 Ba5+ Bb7 c8Q Rc3 Qg8 Qd4 Bb6 Bbc8 Qf7 Rf2 Ra1 Qc4 Ra2 Qf1 Ra1 Qg1 Ra2 Rf6 Rg7 Rg6 Bd8+ Bb5 Nf8 Be5 Nc6 Bh1 Qf6 R3a4 Nb4 Bbd7 Nh7 Rf4 Qf8 Bf3 Qe8 Rf8 Qf7 Bf4 Nc6+ Rb4 Ra5 Rb5 Na7 Rb4 Qc7 Ra4 Ng5 Ra1 Nh7 Ra3 Qb8+
1KBb2r1/1nPN3N/1pP1nqP1/1q3p1Q/B1k2P2/B1p5/n3P1r1/QR3q1b b - - 0 1 illegal: No proof kernel
n4NQb/r1Qr1R1P/2pRp3/Rn1NP1P1/b1K1B1k1/P3q2q/1pP5/r6b b - - 0 2 legal: proof: e4 g5 b4 a5 g4 axb4 f4 d5 fxg5 h5 gxh5 d4 d3 Nc6 Bd2 Nb8 Be3 dxe3 Ke2 Kd7 h4 Ke6 e5 Kf5 h6 b5 d4 e6 Kd3 e2 h5 e1Q a3 b3 d5 b4 d6 b2 h7 b3 d7 Qe3+ Kc4 Bg7 h6 Nf6 Kb4 Ne8 Ne2 Bb7 Bg2 Nc6+ Kb5 Ra7 Qc1 Nd4+ Kb4 Kg4 Qf1 f5 Qd1 f4 Be4 f3 Nbc3 b1R Kc4 b2 Rf1 f2 Nd5 Nb5 Qd4 Qf6 d8R Qff3 Qc3 Qh3 Ra8 Rg8 Rd1 Bh8 Nef4 Rg7 Ng6 Rd7 Nf8 f1B+ Rd3 Bg2 Qa5 c6 Qc7 Ba6 Rd4 Rg1 Rf1 Bh1 Rf7 Ra1 Rd2 Bg7 h8Q Bf6 Qb8 Nec7 Qg8 Bh8 h7 Qh2 Qb6 Qhh3 Rd8 Na8 Qc7 Re7 Rd6 Rd7 Rd1 Nc3+ Kb4 Bb5 Rd3 Ba4 Kc4 Nb5 Rb3 Nc3 Rb6 Nb5 Ra6 Rd1 Ra5 Rg1 Qc8 Ra1 Qc7
4r2k/K2P4/2q1pnrn/3QP1bP/2pQNb2/2q3pn/2B1PN1P/RN1b3R b - - 0 1 illegal: No proof kernel
5N2/pPnprnPQ/r2P2R1/1QP2r2/Bp1b1N1N/4Pkqb/2K4b/qR6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e6 a4 e5 fxe5 c6 b4 bxa4 b5 c5 Ba3 Qf6 Bb4 cxb4 Rh6 Qb6 Rh1 Qd8 g4 Ke7 d4 Ke6 Kd2 Kd5 c4+ Ke4 e6 h5 e3 f5 e7 f4 e8N a3 d5 f3 g6 h4 g5 f2 b6 h3 c5 a2 g7 h2 g6 Qf6 Ne2 Qe5 Nc7 Rh6 Rg1 h1Q Na3 Kf3 Qa4 Qg3 Rb1 a1B Nc2 Ba6 b7 Bd4 Ne6 Bd6 Nf8 Bc4 Kd1 Na6 Nf4 Nc7 Qb5 Re8 Rg2 Re7 Ne1+ Kg4 Bd3 f1R Bc2 Bd3 Rg1 Bf5 Ba4 Rf2 Neg2 Kf3 Kc1 Bh3 Kd1 Nf6 g8Q Nh7 g7 Ng5 Qh7 Nf7 Kc1 Rf6 Kd1 Rf5 Kc1 Ra2 Kd1 B6e5 d6 Ra3 Bc2 Ra6 Ba4 Qhh2 Kc2 Qe1 Rb3 Qa1 Rbb1 Qg3 Rh1 Bg4 Rh6 Bh3 Rg6 Qg4 Ne2 Bh2 Nef4 Qg3 Nh4+
1QQ1B3/1r1N2Q1/n1p1Pnq1/2PPP3/1N3nq1/K3Rp2/Pprb2b1/1R1q1k2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 fxe5 d4 b4 axb4 Bb2 Rh6 Bc3 dxc3 Kf2 Rh7 Ke1 Rh8 e4 Ke7 h4 Ke6 d4 g5 c5 f5 h6 b5 h7 f4 h5 b3 h6 c6 Ne2 b4 Ng3 f3 Nf5 c2 Kd2 c1N Nc3 g4 Qe2 g3 Qe1 g2 Rh2 g1Q Bh3 b2 Kc2 Nf6 Rb1 Qg4 Nd6 Nd3 Kb3 Nf4 Nd5 Na6 Qg1 Rb8 Nf7 Rb7 Re2 Qd7 Ka4 b3 Re3 Rg8 h8Q Qd6 h7 Bh6 Rc1 b1Q Ka3 b2 Nb4 Rg5 Rce1 Qd1 Qg3 Bd7 Qb8 Rh5 h8Q Rh4 Bf1 Rh2 Bh3 Rc2 Qhc8 Ne2 Rc3 Bd2 Re3 Nf4 Qg2 Qf8 Rg1 Qg7 Rge1 Qg6 d5+ Ke7 Nd6 Bf5 Nc4 Kf7 e6+ Kg7 e5 Kh6 Rg1 Kg5 Nb6 Kh4 Nd7 Bd3 Rge1 Bf1 Qg1 Bg2 Rf1 Q4h5 Bf5 Kg3 Bd3 Qgg4 Bg6 Qh7 Be8 Qhg6 Rfe1 Kh3 Qh1+ Kg3 Qh6 Kf2 Rh1 Qe2 Ra1 Qd1 Rb1 Kf1 Qg7
b6R/P1NKBr2/2pQ2nQ/1pP1P3/2BN2Pb/1Bbkpq2/2n2P2/1q3r1n b - - 0 1 illegal: No proof kernel
8/1p1nQ1pb/R7/qB4qN/Qn2b2k/p3nPN1/PPPb1KPr/1B2r1Q1 b - - 2 3 illegal: Other
5N2/2nq1P2/1qk1q1n1/p1b1NP2/1B1p1P1B/1b1N2Kp/P2n1Q1P/rR2Qr2 b - - 1 2 illegal: No proof kernel
1N1rNBQ1/rn3p2/1N3R1p/3qP1P1/1q1p2P1/1k1K1P2/1b1PB2b/Q2n1nr1 b - - 0 2 legal: proof: c4 b5 h4 g5 hxg5 a5 Rh4 b4 Rh1 Ba6 b3 Bb5 cxb5 a4 Bb2 axb3 Ba3 Ra6 Bc1 Ra8 a4 e5 f3 e4 g3 e3 Na3 Ra5 Rb1 Ra8 Rb2 Qf6 Rc2 Qe7 Rc4 Qd8 Rch4 Bg7 R4h2 Nc6 Rf2 Bf8 Bg2 exf2+ Kf1 Qc8 Bh3 Nb8 Kg2 Nf6 Kh2 Ng8 Bf1 Qd8 Kh3 Nf6 Kg2 Ng8 e4 Ke7 g4 Kd6 a5 Kc5 a6 d5 b6 d4 a7 h6 b7 b2 Ba6 f1N Kf2 b1R Ke2 b3 Nh3 Kb4 Nf2 c5 Nc4 b2 Rh3 Nf6 Na5 c4 Rh4 c3 Bc4 c2 Kd3 Na6 b8N Qd5 Rh1 Bd6 Rg1 Bf4 e5 Bh2 Ne4 Rd8 Nd6 Ne4 Ne8 Nc3 Bb5 Ka3 Nc4+ Kb3 Nb6 Ra1 Qe1 b1Q Ba3 Nd1 Bf8 Qb2 Rh1 c1B Rg1 Qa3 Rh1 Qb4 Rg1 Nde3 Rh1 Bb2 Qb1 Ng3 Rc1 Ngf1 Rc6 Nd1 Rf6 Nc5+ Ke2 Nb7 Kd3 Ra4 Qa1 Ra5 Nc6 Rac8 a8Q Rc7 Qc8 Ra7 Nb8 Rc1 Qf5 Nc3 Qg6 Re1 Qg8 Nd1 Rf5 Ng3 Rf6 Rg1 Ba6 Nf1 Bb5 Qdc4+ Ke4 Qcc5 Be2 Qd5+ Kd3
n2Nb2q/1P5Q/RbBp2pK/3rQr2/P3q2P/4N2R/3PkprP/n1Qq4 b - - 0 1 legal: proof: f4 b5 b4 a5 c4 h5 g3 h4 gxh4 e6 Ba3 bxc4 b5 e5 Bb4 axb4 fxe5 Qe7 Qc2 Qg5 Qd1 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 e4+ Kd4 a4 f5 b6 c5 e6 b3 e5 b2 e7 g6 Kg5 c3 b7 c2 e6 c1Q Qe1 f4 Bb5 c4 Ra3 c3 Bd3 c2 Ra2 f3 Bf1 f2 Ne2+ Kd3 Bh3 Ra5+ Kg4 Rd5 e8Q Rhh5 e7 Qd1 Rf1 c1R Nc3 b1Q Rg1 Rhf5 Rc2 Nc6 Bg2 Na5 Qf7 Nb3 e8Q Na1 Qh7 Bc5 Qe5 d6 Rb2 Qf8 Rb6 Ne7 Ra6 Qh8 Bf3 Be6 Nd4 Nc8 Nc6 Bb6 Rg3 Bf7 Rh3 Be8 Nd8 Qbc2 Nb1 Qc6 Na3 Rc3 Nc2 Qc4+ Kg3 Qe4 Ne3 Ra3 Bg2 Rb3 Qg1 Ke2 Qh1 Bd4 Qg1 Nb6 Qh1 Na8 Qg1 Qdc2 Qc1 Qd1 Bh1 Bb6 Bg2 Qec2 Kg4 Rbb5 Bh1 Rg5+ Kf4 Rg1 Bg2 Qe4+ Kg5 Ra5 Kh6 Rab5 Qg3 Rf5 Bh1 Rbd5 Qe5 Qg4 Be4 Rg2 Bc2 Qe4 Bb3 Ra5 Bd5 Rb5 Bc6 Rc5 Rg3 Rd5 Rh3
R7/BrN1rbp1/p3b1Pq/R2Q2b1/1n3Pkn/1pb1P3/1QPP4/1KQ1b2B b - - 0 1 illegal: No proof kernel
4Q3/4rbnp/n2rkQNb/R1p3b1/qN1b1B1P/PPP1P3/B1b1K1p1/6N1 b - - 1 2 illegal: No possible last move
4rQKn/BP4P1/3n1BP1/2p1pn2/1QPrBRN1/Pp6/2q1Rb2/kb1bn3 b - - 0 1 illegal: No proof kernel
3rk1Nr/2b1B3/2P1QK1p/Pn1pn2P/3pRb2/R7/1PrPq1Q1/1Qb3rB b - - 1 2 illegal: No proof kernel forced: bxDB
K1n2r1N/bB1p2b1/1P3NR1/1pq3Q1/2PPb3/rPp1b3/R3nP1Q/2R1k1r1 b - - 0 2 illegal: No proof kernel
n1r1BKQ1/b2bPR1N/3p4/P4R2/2p1qbPk/bP1P3B/5pn1/B1Q3rr b - - 0 1 illegal: No proof kernel
B3Q1q1/3qb2q/QN1NR1P1/K3Rr2/1R1npPP1/p5qp/2PnP1br/2k5 b - - 0 1 legal: proof: d4 f5 g4 g5 a4 c5 f3 b5 axb5 cxd4 Be3 f4 Bf2 Nh6 h4 Ng8 Bg3 fxg3 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Kd2 Kf7 b4 Ke6 g6 Ke5 b6 Kf4 b7 a5 b5 h5 b6 d5 Na3 e5 Bg2 d3 Kc3 Ke3 f4 a4 Qf1 h4 Qc1+ d2 Qf1 d1Q Nb5 a3 Rh2 d4+ Kb3 Kd2 Be4 d3 Qh3 g2 Rb1 Ra5 Ra1 Nc6 b8R Be7 b7 Nf6 Ra2 Kc1 Rb2 d2 Nf3 g1Q Nd6 Nd4+ Kb4 Qg8 Qg2 Bd7 Re8 Bc6 b8Q Bb7 Qh1 Qg3 Qa8 Qde1 Qa6 d1Q+ Nd2 Qf1 Bc6 Ne4 Nc4 Nd2 Nb6 Qfh3 Qe4 Rh5 Qe3 Rf5 Bh1 Bg2 Qe4 Rc5 Ka4 Rc3 Ka5 Rf3 Qc6 Rf2 Qcc8 Bf1 Bb7 Bg2 Ba8 e4+ Rb5 Bf3 Rh1 Rh2 Re5 Bg2 Qd7 Qe3 Qa4 Qhg3 Rf1 h3 Rf3 Qeg1 Rb3 Qh4 Rb4 Qhh7 Qd7 Qe3 Qe6 Qg3 Qf7 Bf8 Re6 Be7 Qf8 Nc6+ Ka4 Nb1 Nb5 Qd7 Nd6 Nd4+ Ka5 Nd2 Qe8
3R4/Np1P1rR1/R5p1/QPKb4/r1P2nn1/n4Qq1/b1pP2Pq/n4BkN b - - 0 2 illegal: No proof kernel
n2K2B1/2PPBp2/n1prqP1R/2P4n/QbkQ3r/1R6/nP1qpN2/r1B5 b - - 0 1 illegal: No proof kernel
1n4n1/Q1B2p1K/rp2p1B1/q1NP1PR1/2P1B1q1/1r2PP1R/r5n1/k1bn2Q1 b - - 0 1 illegal: No proof kernel
b1nBKNq1/Q3b2p/1NPp1qB1/Rp5P/Qb1P2P1/6kN/1Pq5/1r3r1b b - - 1 3 legal: proof: f4 g5 a4 gxf4 a5 b6 axb6 c6 e4 d6 e5 Kd7 Ra5 Qe8 Rd5 Qd8 Rb5 cxb5 e6+ Kc6 Nf3 Bg7 Ng1 Nd7 exd7 Bf8 Kf2 Kd5 Kf3 Ke5 Kg4 f5+ Kg5 a5 g4 f3 h4 f2 c4 f4 h5 a4 c5 a3 c6 a2 b7 a1Q b8Q f3 d3 Qa4 Qb6 Bb7 Rh4 Qc2 Nd2 Ra1 Qa6 Ba8 Rh1 Rb1 Bh3 f1B Qa5 f2 Qa7 Qb8 d8N Bg2 Ne6 f1Q Ne2 Qd8 N2f4 Qf2 Rg1 Bh1 Bg2 Qe8 Be4 Qf7 Nd8 e6 Nh3 Ne7 Rf1 Nc8 Bg6 Be7+ Kh6 Qe8 Kg7 Rf8 Rg1 Qh4 Rg3 Rf1 d4+ Kd5 Re3 e5 Nc4 e4 Ra3 e3 Ne6 e2 Ra5 e1B Nf8 Bb4 Bg5 Qhf2 Bf6 Qff5 Nb6+ Ke4 Kg8 Qd8 Kf7 Ke3 Qe1+ Kf3 Qe6 Qg5 Qa2 Kg3 Qa4 Qf4 Nfd7 Qh8 Nf8 Qg8+ Ke8 Qf3 Bg5 Qf6 Qa1 Qfh8 Qa4 Bf6 Bd2 Bh4 Bg5 Qhg7 Bd8 Be7 Nd7 Qf6 Nb6
N1Q5/p1pq1bbq/2rN2Qp/br1B2PB/NR1r2b1/2Pk1P1P/P7/K1n5 b - - 1 3 legal: proof: c3 b5 d3 b4 Na3 b3 e4 f5 Bd2 Kf7 Rc1 Ke8 Rc2 bxc2 b3 Nh6 b4 Ng8 Bf4 g5 Kd2 e5 Bg3 g4 exf5 e4 f3 Nc6 d4 Ne5 Bf2 g3 dxe5 gxf2 Kc1 Ke7 Kb2 c1B+ Kb1 d5 g4 d4 f6+ Ke6 f7 Kd5 e6 e3 b5 e2 b6 e1Q e7 d3 e8B d2 h3 Qee7 g5 Nf6 b7 Rb8 Qe2 d1R Rh2 Bg7 f8Q Nh5 Qc2 Qdd7 Qg6 Rd4 Ne2 Be3 Nc1 Nf4 Nb3 Ne2 Nc5 Nc1 Nb5 h6 Be2 f1B Na4 Rg8 Ka1 Qe4 Bd1 Kc4 Rb2 Kd3 Bb3 Be2 Bd5 Bd1 Qfd6 Bb3 Qde6 Rf8 Qa6 Rf6 Nd6+ Bc4 Rb4 Bg1 Nb5 Rc6 Nd6 Be3 Qe6 Qh7 Bh5 Rh4 Qf7 Bb6 Qf6 Rd4 Qf8 Ra8 b8N Ba5 Qb6 Qd8 Nd7 Rb8 Qa6 Rb5 Ndb6 Bg4 Na8 Qd7 Qfc8 Kd2 Be4 Bf7 Bd5 Kc2 Qg8 Kd3 Qac8 Bg6 Qe6 Bf7 Qg6+
4r3/Rnpk1N1r/7R/n1PK2PR/n1Q2p1P/rp1Nq3/b1P1rP1Q/3n1B2 b - - 0 1 illegal: No proof kernel
b3nR1r/K1p2np1/2P1Q1PP/p1r2Nk1/B1b3Q1/4B1Q1/PrP2r1b/2b1R3 b - - 1 3 illegal: No possible last move
N4rQ1/p2b1n1Q/2p1RKPb/1nn1B1R1/2p3bq/2PPP2k/1Qp1r2P/7B b - - 0 1 illegal: No proof kernel
1q3Q1Q/2Pr1pbn/1Bknpr2/2n3p1/P2Q4/Ppr1NPP1/1b3R2/RK2N3 b - - 0 2 legal: proof: e4 d5 d4 a5 b3 c5 Be3 cxd4 Bc1 a4 bxa4 d3 g3 h5 Kd2 h4 Bb2 d4 Bc1 h3 Ke1 Be6 Bg2 Bd5 exd5 hxg2 Kd2 Kd7 c4 b5 h4 g5 a3 e6 c5 b4 f3 b3 d6 Na6 h5 Bg7 h6 Kc6 h7 Nf6 d7 Qb8 Ne2 g1B d8Q Rg8 h8Q Nh7 Rh5 Ra7 Bb2 Rd7 Kc1 Rc7 Nbc3 d2+ Kb1 d3 Qe7 B1d4 Nf4 Rcc8 Qg1 d1N Ncd5 d2 Ne3 Nf2 Nfg2 Ne4 Qf8 Nd6 Rh2 d1R+ Bc1 Rd2 Ne1 Bb2 Rf2 Rd3 Bd2 Rc3 Bc1 Rd8 Bd2 Rd7 Bc1 Kc7 c6 Nc5 Bd2 Kb6 c7 Kc6 Bc1 Be5 Bd2 Rg6 Bc1 Bg7 Bd2 Rc4 Ba5 Rf6 Bb6 Rc3 Qf1 Rf5 Qc4 Rf6 Qd4
2n2N1Q/2np2rB/1p3rb1/N1PPNQ2/1n1bK1pq/B1P2P2/1P1p2r1/4R1k1 b - - 0 2 illegal: No proof kernel
3BbR1N/PP1bp2r/3Qkq2/1b1n1pRR/1p2P2P/nP5Q/3p1r2/r3N2K b - - 0 2 illegal: No proof kernel
r2QRn2/nR2N2P/R3p1n1/r2bbkBK/3Q1Pp1/P1p3P1/2q1Pp2/5B1b b - - 1 2 illegal: No proof kernel
k4rQ1/1pKB3p/Q2PNR1p/3P3P/1pPB2b1/bqnP2r1/2q2Q1q/1N2n3 b - - 0 1 illegal: Other
1QnqQ2B/pP6/r2Nnn1r/1Pk3qP/3pB2p/3R2RP/1pKP4/3B1bb1 b - - 0 2 legal: proof: b4 c5 a4 b5 axb5 e5 f4 exf4 b6 Qc7 b5 Qd8 g4 h5 Nc3 h4 Nd5 Qg5 Nb4 Qh5 gxh5 cxb4 c4 Ke7 e4 Kd6 b7 g5 e5+ Kc5 e6 f5 e7 d5 e8B f3 Ra4 f2+ Ke2 b3 Kd3 g4 Ra5 f4 Bg2 f1Q+ Qe2 g3 Nh3 f3 Ng5 f2 Ra3 Nd7 Ra5 Ndf6 Nf3 Rh6 Ra3 Bh3 Nd4 Rd8 Bb2 Qg1 Bc3 f1Q Bc6 b2 Nf5 Rd6 Kc2 Ne7 Bf3 Nc8 Qe8 g2 Bd1 Qe1 Rb3 Qe7 Ra3 Re6 Nd6 Qd8 Be5 Qe3 Rd3 Qg5 Rg1 d4 Be4 Bg7 Rf1 g1N Rff3 Bf1 h3 Ne2 Rfe3 Nf4 Rg3 Kb4 c5 Bh8 c6 Kc5 c7 Bg7 Nf5 Ra6 Nd6 Ne6 Bc6 Ne7 c8Q Bf8 Qb8 Nc8 Nf7 Bd6 Be4 Nh7 Bh8 Nf6 Rg1 Bh2 Rgg3 Bg1 Nd6
q2r1Qn1/Rpp3R1/5Pq1/Rb1pkQP1/3NN2K/P3r2p/4P1BP/2n2rb1 b - - 0 1 illegal: No proof kernel
5b2/PP1qpn1K/6np/2N2kp1/3qrR1P/Bp1QrR1P/Q2PB3/1br2R2 b - - 0 1 illegal: No possible last move, all moves rejected
2R1Rr2/1n4pp/3bN1q1/p1PK2P1/B1P2PQ1/3b1kBQ/p2R1q1P/b2rn3 b - - 0 2 legal: proof: d4 b5 e4 c5 dxc5 f5 a4 bxa4 Nd2 d5 exd5 Be6 Ne4 fxe4 Qd4 Bg4 Qd1 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 c4 e5+ Ke3 a5 f4 a3 b4 a2 g3 Nf6 d6 Ne8 b5 Na6 d7 Nb4 b6 Qf6 d8R Nd6 b7 Qg6 b8Q Nb7 Ne2 Kg4 Bg2 Bf5 Re1 Bd6 Qc8 Nd3 Bd2 Rf8 Qd7 Ra6 Rc8 Rb6 Rc1 Rb1 Rc2 Rc1 Bb4 Ra1 Rd2 Rb1 Qb3 Rd1 Rg1 Ne1 Nd4 Rb1 Ne6 Rd1 Ke2 e3 Bc6 Bb1 Ba4 e4 Bc3 Bc2 Bf6 Bb1 Bh4 Bc2 Kf1 e2+ Kf2 Bb1 Ke3 Bd3 Kd4 Kf3 g4 e3 g5 Ng2 Kd5 e1B Qb4 e2 Bg3 Bf2 Qbb5 e1Q Qb3 Bd4 Rf1+ Qf2 Re1 Ba1 Ree2 Rf1 Qd1 Rg1 Qf1 Ne1 Qh3 Qe3 Nd8 Qf2 Re8 Nc2 Qdf5 Rd1 Ne6 Ne1 Qfg4+
6Q1/1p1pn1PK/P2p2R1/q1brB1r1/1P1PkQ1n/1p2bRP1/BR1b4/4b2N b - - 0 2 illegal: No proof kernel forced: wxLB
r3b1r1/2PP1p1b/RnQ1Q3/N7/3B2BK/1P1kpB2/p1npPPq1/1rrR4 b - - 0 2 illegal: Other
K1bb3n/1NP1P1Q1/3Q2pp/1ppk1rP1/2R1q2P/RN6/1P1B2b1/brb3N1 b - - 2 3 illegal: No proof kernel
2r5/pr1p3P/2R2KN1/1PpBpb1p/1qRPP1P1/2Q5/bb1B1k1n/2Qr2R1 b - - 0 1 illegal: No proof kernel
4b1KN/1p2Bn1R/3r2Pr/5Ppn/3Q2Pr/1P1np2N/1kqqP2b/R2Q2Qb b - - 0 1 illegal: No proof kernel
1N2bR1R/1Pr1p1Kp/1k1N4/pr4B1/Pbp2Qn1/b3P1PP/q4n1r/2QN2n1 b - - 0 1 legal: proof: f4 g5 fxg5 d5 c4 dxc4 e3 b5 Na3 c3 Bc4 bxc4 Nb1 c2 Ke2 Kd7 Kf3 Kc6 Kf4 f5 d4 c3 b4 a6 h3 Kb6 b5 c5 g3 c4 g6 Ra7 Kg5 f4 d5 f3 d6 f2 d7 f1R g7 Nh6 g8Q Rf2 Qf7 Ng4 Na3 Nc6 Ne2 Nb4 Bb2 c1N Rf1 c2 Qf4 Bg7 Bf6 Rc7 Nc3 Ne2 Qc1 Rh2 Nd1 Nd3 Rb1 Qf8 d8N a5 Nc6 Ndf2 Nb8 Ng1 Kh5 Bd7 Bg5 Bc3 Rb4 Kc5 b6 Qg7 Rb1 Bb4 Nb5 Qb2 a4 Qa2 Nd6 Rg8 b7 Kb6 Rb3 Rf8 Rd3 Rf5 Rd4 Rb5 Rd2 Nf6+ Kh6 N6g4+ Kg7 Bc6 Rd5 Be8 Rf5 Bd2 Rf8 Bb4 Qa1 c1B Rh8 Bca3 Qc1 Ne4 Rf3 Nef2 Qe5 Qa1 Rff8 Qa2 Qf4
3rrB2/ppPnbR2/1k2Kp1B/P1p4Q/2PR1r2/P3nP2/qq1Nn1B1/6Qb b - - 0 1 illegal: Other
2n4n/2N1Nnk1/2p2r2/b2pB1pQ/1P2Qp2/PR1Pq1P1/R1Prb3/2KN1q1r b - - 0 1 illegal: No proof kernel
N1n2QQ1/Q1p1b2N/1R5p/1Bq2q1P/qp3qp1/rPP1rRPP/1K2kn2/4q3 b - - 0 1 illegal: Other
N2Q1q1B/1k1p2b1/2r4n/B4p1b/qpr3PN/5Pp1/1P1qPRPp/1Q1B2nK b - - 0 1 illegal: No proof kernel forced: bxLB
k2q1b1K/1Np4P/2P2Q1p/nQ2Q3/1qp4R/Rp2Nr1P/pP1r2pP/1B1bn3 b - - 0 1 illegal: Other
2n5/1p2P2r/1r2BNkP/n3K2R/b2P1P1N/2nP2r1/R1NBRp1b/r7 b - - 0 1 legal: proof: b4 a5 g4 axb4 e3 d5 c3 h5 gxh5 d4 cxd4 f5 f3 e5 Ke2 f4 exf4 e4 Ke1 e3 Qe2 Qh4+ Qf2 Qe7 Kd1 Qe4 fxe4 exf2 Kc2 Kf7 Kd3 g5 a4 c5 h4 g4 a5 b3 a6 b2 e5 g3 Ke4 c4 a7 c3 e6+ Kg7 d3 c2 h6+ Kg6 h7 g2 Ra2 Nc6 Na3 b1N Nf3 g1R Bh3 Be7 Bd2 c1R Nc2 Rg3 Re1 Bd7 Re2 Na5 Ke5 Ba4 Bg4 Re8 a8N Nc3 Nb6 Ra1 Nd7 Bd8 Bh3 Ne7 Nf6 Nc8 Bg4 Re7 Bh3 Rf8 h8R Rh7 Bg4 Be7 Bh3 Rd8 Bg4 Rd6 h5+ Kg7 Nh4 Rb6 Nd7 Bg5 e7 Kf7 Nf6 Kg7 Ng2 Bh4 Be6 Kh6 Rd8 Kg7 h6+ Kg6 Rd6 Rf3 Rd5 Bg3 Rb5 Bh2 Rb1 Rg3 Rh1 Bg1 Rh5 Bh2 Nh4#
3n3R/1PP1N3/3n1NK1/Pq2p1P1/P1NBp3/3pnB2/2bb4/BRbrr1k1 b - - 0 1 illegal: No proof kernel
2r4q/B2nK2B/1pB2R2/1P4rP/2brPb2/NR2Pn2/3P2qq/n1kNN2q b - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 hxg4 b4 a5 b5 e5 f3 e4 fxe4 Rh6 Qa4 Rh8 Qb4 axb4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kc4 a4 Kb3 h4 Kc2 e3 g5 h5 c5 a5 f5 d6 f4 d7 c4 Ke6 f3 a6 c3 a7 b3 Rh4 b6 Rh2 g3 Bc4 b2 Ra3 g4 Re2 g2 Rf2 g3 Re2 f2 Nf3 g1Q Ra6 f1Q Rg2 Bd6 Ra2 Nf6 Ra3 Nh7 Ra6 Qh2 Ra4 Bf4 Rf2 g2 Rb4 g1R Rb3 Rg5 Na3+ Kd1 Ne1 b1Q Bd5 c2 Bb2 c1N Be5 Qfg2 Kf7 Qg8+ Ke7 Qa1 d8N Be6 Bd6 Nd7 Nf7 Rc8 a8B Qb1 Bdc6 Bc4 Bb8 Qg7 Rf1 Rhd8 Ba7 Qh8 Nh6 Qba1 Ng4 Qb1 Rd3 Nb3 Nf2+ Kc1 Nd1 Na1 Rf2 Rd5 Rb3 Ng5 Rf1 Nf3 Bab7 Rg5 Bd5 Nc5 Bg8 Rd4 Bh7 Nd7 Bc6 Qd3 Rh1 Qdf1 Rg1 Qgh1 Rg3 Qfg2 Rg4 Rc5 Rg6 Rg5 Rf6
B1r1q3/R2P2KN/1Pr2p1n/5B2/bR3PPN/1N2P1b1/rrq2q1n/4k1Bn b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 hxg5 d6 a4 d5 axb5 dxc4 d5 Ke7 Qd2 Ke8 Qd4 exd4 Kd2 Kd7 b4 Kd6 g4 Ke5 g6 Ke4 d6 c5 e3 a5 g7 h5 b6 d3 Kc3 f6 b7 a4 b5 a3 b6 a2 Nf3 h4 Rh3 d2 Rh1 d1R Bh3 Nc6 b8N Rd2 Re1 Ne5 Ng1 Rb2 Re2 Bd7 Rc2 Qe8 Rd2 Nf3 Bg2 Ba4 Nd7 Nh6 g8B h3 Be6 h2 Bh1 Be7 Nf8 Ra7 d7 Bd6 Nh7 Bg3 Bg2 h1N Re2 Rc7 Bd2 Rc6 Be1 Rg8 Nh3 Rf8 Nf4 Rg8 Ng6 Rf8 Bf1 Nh2 f4 Kf3 Bf2 Rg8 Rc2 Rh8 Kd2 c3+ Kd3 c4+ Kd4 Rg8 Kd5 Rh8 Re2 c2 Bg1 c1Q Bf5 c3 Rd2 c2 Rd4 Rg8 Bg2+ Ke2 Rb4 Qe1 Nh4 c1Q Nd2 Qf2 Nb3 Qc2 Bge4 Rc7 Kd6 Rh8 Ba8 Rc6+ Kd5 Rf8 Rb1 a1R Rd1 Raa2 Ra1 Rc7 Kd6 Qg6 Ke7 Rfc8 Ke6 Rc4 Ke7 R8c6 Kf8 Qe8+ Kg7 Rc8 Rd1 R4c6 Rd5 Kf1 Ra5 Ke1 Ra7
5k1B/2Np3B/2qrPqP1/2nN2r1/1bPb1N1P/2qP1n2/1bRnB1b1/3K2R1 b - - 0 1 illegal: No proof kernel
K4B2/PRPPb1pN/b2rn1P1/2P5/2kN3R/1BbR4/B2q1bn1/2nnq1r1 b - - 0 1 illegal: No possible last move, all moves rejected
2bK4/3nR2B/6nr/PrP2N1n/knPp1p1B/R1b5/Pq1P4/Nb1Br1N1 b - - 0 1 illegal: Other
3N4/r2R1r1P/1q1n1b2/P2p2PP/bp2NK2/BP2nnr1/k3B1B1/1q2RNr1 b - - 0 1 illegal: No proof kernel
q3B3/P1bqB3/2q1pp2/3R1b1P/qPN1k1n1/n1K2Pr1/1Nb2P1R/1B1r1N2 b - - 0 1 illegal: No possible last move, all moves rejected
r1q3b1/1P2pnq1/n1p1Pp1k/1R1R3B/3bN1N1/1KP1N1bb/1BP2P1R/3n4 b - - 1 3 legal: proof: e4 a5 a4 d5 h4 g5 e5 gxh4 Qg4 b5 axb5 Ra6 Qd4 Rc6 Qe4 Rc3 bxc3 dxe4 Kd1 h5 d4 e3 g4 a4 g5 e2+ Kd2 e1B+ Kd3 a3 Kc4 a2 g6 c6 b6 h3 b7 h2 d5 h4 g7 h3 d6 Bd2 Ba3 Nh6 g8N Bf4 Nd2 Na6 Rd1 a1Q Ngf3 Bg7 d7+ Kf8 Ng1 Bg3 Re1 Qd1 Re4 Qg4 Ngf3 Qg6 Rg1 h1N Nf6 h2 Bd3 Qe8 d8R Bh3 Rd7 Qc8 Ng4 Kg8 Red4 Kh7 Be2 Bf6 R4d5 Qg7 Ra1 Qa8 Rg1 Bgh4 Rf1 Ng3 Ra5 h1B Rg1 Ngf5 Rb5 Ne3+ Kb3 Nd1 Rg2 Bg3 Bb2 Qd8 Rh2 Qc7 Ne4 Ra8 Nc5 Qc8 e6 Bd4 Ne3 f6 Rd8 Nf7 Rd5 Kh6 Ne5 Be4 Bh5 Bh7 Ne4 Bg8 N5g4+
5r1q/2NBPPR1/2pP4/2kpRp1r/1nb1n1bn/2N2P2/BpP2r2/2B1R2K b - - 0 2 illegal: No proof kernel
4b3/B1P2R1N/1q2p1R1/1p1np2P/1N2qB2/RP4k1/b1rbPpPr/3n1KB1 b - - 1 2 illegal: No proof kernel forced: bxLB
q2N1B2/2RN3P/3b1b1n/PNp1p2k/pp1r2q1/PPP5/2n1qBb1/1KR3R1 b - - 1 3 illegal: Other
3bBR1n/nK1bN2B/1n1R3B/5r2/2ppPNp1/n2PR1Pp/2Pp1k1P/3rq3 b - - 2 4 legal: proof: f4 e5 b4 a5 d3 e4 Qd2 e3 Kd1 exd2 e4 Qf6 Ke2 Qe5 fxe5 axb4 Ke3 Ke7 Kd4 Ke6 a4 c5+ Kc4 h5 Kb5 g5 Kb6 d5 g3 f5 a5 b3 a6 b2 a7 c4 Bg2 h4 Bf1 f4 Ra6 h3 Bg2 f3 Ra3 f2 Ra5 f1N Rc5 Ne3 Rb5 Nc6 Na3 b1N Rb3 Nh6 Rb2 Nf7 Rb5 Bd7 Rb3 Rh5 Bf3 Be7 Bb2 Nh8 Nb5 Na3 Ne2 d4 Re1 Bd8+ Nc7+ Kf7 e6+ Kg6 e7 Nd5+ Kc5 b5 e8B+ Kf6 Nf4 b4 Re3 Nb6 Bg4 Rb8 a8R Na7 Bc3 Rb7 Rb1 b3 Bb4 b2 Bf5 Rb8 Rf1 b1Q Bh7 Qe1 Kd6 Na4 Bc5 Rb1 Rf2 Nb6 Ncd5+ Kg7 Rc8 Kh6 Rc6 Rd1 Ne7 Rh4 Nfg6 Kh5 Rf8 Kg4 Nf4 Rh5 Bb4 Rh6+ Kc5 Rg6 Rd6 Rf6 Re2 Kf3 Re3+ Kf2 Ned5 g4 Ne7 Na8 Kd5 Nc7+ Kc5 Rf5+ Kb6 Na8+ Kb7 Nb6 Neg6 Rg5 Rf7 Qf1 Rd5 Nb1 Bf8 Rh5 Ne7 Na3 Bh6 Qe1 Rf8 Rf5 Rd6
3Qn3/R2n1p1K/nb1B2rP/2RRPr1P/1n2pkB1/n4b2/1P1N3P/7R b - - 0 1 illegal: No proof kernel
4qB1r/bR6/3PN3/b3r1PP/Qn1b2qP/Knn5/P1R1N1nR/3qkR2 b - - 0 1 legal: proof: d4 a5 g4 d5 c4 h5 gxh5 e6 cxd5 Qd7 b4 axb4 d6 Qe7 d5 Qd8 d7+ Ke7 f3 Kd6 Qb3 g5 Qa4 b6 Qb5 g4 Qd3 g3 Qd1 Bb7 Bg2 Kc5 d6 Bd5 Qd2 Kc6 Qd1 Be4 Ba3 Bf5 Bc1 Bg4 fxg4+ Kc5 Bd5 exd5 Bf4 Kb5 Bc1 Kc6 Kd2 Kb5 Kc2 Kc4 Kb2 c5 h4 f5 e4 d4 g5 b3 e5 d3 e6 d2 e7 Kd3 e8R b5 Rh2 f4 Rh1 f3 Re1 b4 Rh2 c4 Rhe2 g2 Re6 f2 Rg6 f1N Ne2 g1B Ng3 Nc6 Nf5 Na5 Ng3 Qe8 d8R Nf6 Rc8 Ba7 Ne4 Bg7 Ng3 Ne3 Rc5 Ng2 Rce5 Nd5 Qg4 d1Q Nd2 c3+ Kb1 b2 Nf3 Nb3 Re7 Bgd4 Rh6 Rc8 Rhh7 Rc5 Rh1 Qg1 Ne4 Ke2 Ng3+ Kf2 Kc2 b1N Rb7 Rb5 Bb2 Ra5 Nd2 Ke1 Nde4 Rb5 Nc5 Ra5 Kd3 c2 Kc4 c1B Ne6 Bd2 Ne2 B2c3 Rhc7 Bd2 Nc1 Nbc3 Ne2+ Nd1 Rc6 Bf2 Qe4 Nc1 Bc3 b3 Rd7 b2 Qb1 Kf1 Ng7 Ne1 Rh3 Qg4+ Qe4 b1Q Ne6 Nb3 Rb7 Ng2 Bg7 Rb5 Bf8 Ba5 Rh2 Qc1+ Kd3 Qb1+ Rc2 N1c3 Qa4 Bfd4 Kc4 Qe1 Rd1 Kf2 Rd3 Qd1 Rf3+ Ke1 Rf5 Nc1 Rff7 Nb4 Rf5 Re5 Rff7 Ncd3 Kb3 Nc5+ Ka3 Nb3 Rf1+
r4B2/n2qN3/1Q1P1R2/rNPPn2n/b1P1p3/1k1P2r1/1B1rb1B1/KBb5 b - - 0 1 illegal: Other
3R1qN1/r1BPbkQb/rP6/1n3p1r/1P5b/2rPRP1N/1K3R2/n1Rq4 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 f6 Bh3 Bxh3 e4 Bc8 e5 f5 e6 Bxe6 Qa4 Bd7 Qd1 Bc8 h4 a5 b4 c5 h6 g5 f3 e5 d3 g4 Kd2 e4 Kc2 e3 b6 a4 h7 a3 h5 c4 d6 c3 h6 e2 Bd2 e1B Rh4 a2 Bg5 g3 Rd4 g2 Kb3 c2 Na3 c1R Rg4 Nd7 Rd4 Bh4 Nc4 Ngf6 Kb2 Nd5 Ne3 Rc3 Nh3 g1Q Bf4 Kf7 Rc1 a1R Ng4 Nc7 Re4 Nb5 Nf6 R1a7 Re3 Nc5 Ng8 Be6 d7 Bfe7 Bc7 Qf8 Qd2 Nb3 Qg2 Qd1 Qg1 Na1 Qg4 Ra6 Qd4 Kg6 Qe5 R8a7 Qg7+ Kh5 Nf2 Bf7 Rb1 Qe8 Rc1 Bg6 Nf6+ Kg5 Nd5 Rf8 h8R Bg3 h7 Rf6 Rf8 Qf7 Rb8 Qf8 h8R Re6 Rh1 Bh4 Nh3+ Kh5 Ra8 Bh7 Rf1 Rg6 Rf2 Rg5 Qf7+ Kh6 Rd8 Rh5 Nf6 Rca3 Qc4 Kg6 Qg4+ Kf7 Ng8 Rc3 Qg7+
5Kb1/r5P1/1N2rP1q/1PB1QN1p/1R1rqB2/P1q3nP/b3B1k1/3B1qq1 b - - 0 1 legal: proof: b4 b5 c3 a5 Qb3 axb4 Qb2 b3 Qa3 b2 Qa4 b4 Qd1 b3 e4 f5 exf5 g6 Bb5 Bg7 Bf1 Bd4 Nf3 Bc5 Ng1 Bb4 cxb4 Ba6 Nf3 Bb7 Ng1 Bc8 f4 c5 d4 c4 f6 g5 f5 Qb6 Be3 Kd8 Nd2 Na6 Ndf3 Nc5 dxc5 Ke8 Rc1 Qd8 Rc3 Bb7 Rd3 Ba6 Rd4 Bc8 Rf4 gxf4 Ke2 Kf7 g4 b1Q c6 e5 a3 h5 b5 d5 g5 e4 c7 c3 h3 d4 Bd2 c2 Bb4 c1Q Bc3 b2 Bb4 e3 Bc3 Qd5 Be1 Ne7 Nd2 Ra7 Ngf3 Be6 c8B Qde4 Nc4 Rh6 Bd2 Bd5 Nb6 d3+ Ke1 e2 Kf2 Qa1 Nd4 b1B Qe1 f3 Kg3 f2 Bf4 d2 Kh4 d1R Bb7 Qac3 g6+ Ke8 Kg5 Bba2 g7 Bg8 Rg1 Kf7 Rg4 Q1e3 Rh4 Rd2 Qa1 e1Q Be2 Qg1+ Rg4 f1Q Bd1 Qe5 Bbf3 Q5e4 Bfe2 Rd3 Nf3 Rd4 Nh4 Ke8 f7+ Kd8 f8B Re6 f6 Nf5 Kg6 Ng3+ Nf5 Qed2 Nc4 Kd7 Nd6 Kc7 Be7 Kb6 Rh4 Kc5 Nc8+ Kd5 Bc5 Qec2 Qb2 Ke4 Nb6 Rd5 Bb8+ Qdf4 Bcd6 Qce3 Qc3 Qa4 Qc7 Qc3 Bc5 Qad4 Nh6 Ke3 Nf5+ Kf2 Qd6 Qfd2 Rg4 Q4e3 Rb4 Kg2 Qf4 Qe4 Qc7 Bh7+ Kf7 Bg8+ Kf8 Rd4 Qd6 Qh6 Qe7 Rc6 Bf4 Rcd6 Qc7 Re6 Qe5
B1B3N1/2qkP3/Qqn2P1K/2P2P2/4r2b/b2BP2N/q1R2p1n/2Bbnn2 b - - 0 1 illegal: No proof kernel
8/nk1P1Q2/n2Rq2n/5r2/r1NnpbP1/NPrB1P1N/r4RKP/3q3N b - - 0 1 legal: proof: a4 b5 axb5 g5 c4 d5 cxd5 g4 g3 Bg7 Bg2 Be6 Be4 Bf8 Bd3 Bd7 Qb3 Bf5 Kd1 Bc8 f3 gxf3 Kc2 f2 Kc3 Be6 Qd1 Bd7 Kc2 Bc8 Nc3 f1N Ra5 f5 Nb1 f4 Ra1 f3 Kc3 f2 Kd4 Bg4 Ke4 Bf3+ exf3 Ne3 Kf4 Nc2 Ke4 Nd4 Ke3 Nf5+ Ke2 Ne3 Qa4 Nf1 Qc2 Na6 Qd1 Nb8 g4 h5 b3 h4 Ba3 Rh5 Bd6 Rh8 Bg3 hxg3 b6 Kd7 d6 Kc6 d7 e5 b7 a5 Bh7 a4 d4 e4 Nh3 g2 Qe1 g1N+ Kd1 a3 Nc3 a2 Qd2 Bh6 Ne2 Qf6 Qf4 Ra4 Ng3 Qe6 Qf7 Na6 b8N+ Kb7 d5 c5 d6 c4 Nc6 c3 Na7 Bf4 Nb5 Nd2 Na3 Ne2 Rf1 Nh6 Nh1 Nc4 Bg8 Na5 Rb1 a1R d8N+ Kb6 d7 Ra2 Rb2 Nc6 Nb7 Ned4 Rd2 Na7 Na5 Rh7 N5c4+ Kb7 Rd3 Rg7 Rd2 Rg5 Rd3 Rf5 Rd2 Ndc6 Ke2 c2 Rfd1 c1R Kf1 Rcc2 Kg2 Rc3 Rd6 Nd4 Rd2 Bg5 Kg3 f1Q Rf2 Qc1 Kg2 Bf4 Qh7 Qg6 Be6 Qd1 Qf7 Kc7 Bd5 Qe6 Bc6 Kb8 Bb5 Kc7 Nd2 Kb8 Bd3 Kb7 Ndc4
2n2q1r/5P1k/2q1Q2P/p1NB1n2/3nBrPB/pPBb1b2/1P1rR2N/6K1 b - - 0 1 illegal: No proof kernel
N2B4/nN1K1PBb/P1r1p2Q/1P2q3/qqP1N3/k2NP1bn/1bp3R1/1r6 b - - 0 1 legal: proof: d4 b5 g4 c5 dxc5 f5 h3 g5 gxf5 b4 h4 g4 Bg2 Qc7 Bh3 Qf4 Bf1 Qg5 hxg5 Bh6 Rh5 Bg7 Rh1 Bf8 c4 a5 Nd2 Bg7 Rh3 Bf8 Rc3 Nc6 Bg2 Nb8 Be4 Kf7 Bc2 bxc3 b4 a4 Bb3 axb3 a4 Ke8 Ngf3 Ra6 Ba3 Rh6 Qc2 Nf6 Kf1 Nh5 Re1 Rd6 Bc1 Nf6 Qd1 Kd8 Kg2 Ng8 Rh1 Ke8 Kf1 Rg6 Ke1 Ra6 Ng1 Ra8 f4 h5 Kf2 d5 Kg3 Kd7 e3 Kc6 a5 d4 f6 b2 g6 b1Q g7 h4+ Kg2 h3+ Kg3 h2 f5 d3 Kf4 g3 Ke5 g2 f7 Ra6 f6 Nh6 g8N Bf5 Ba3 e6 Nb3 d2 Qh5 d1Q Nf3 g1B Ne1 Bg7 f8B Bh7 Nd3 Bf2 Rg1 h1Q Rg2 c2 Qg6 Qhh5+ Qg5 Rb6 a6 Qd2 Bb2 Qa1 Be7 Qa4 Bd8 Qh2+ Qf4 Bg3 Ba1 Nf5 Bc3 Nd6 Bb2 Ne4 b5+ Kd7 Na5 Nf2 Ba1 Qdb4 Nb7 Nh3 Bc3 Rc6 Bb2 Bh6 f7 Bf8 Kf6 Bd6 Qh6 Bc7 Kg7 Bce5+ Kf8 Bc3 Bh4 Kc7 Ke7 Bce5 Ba1 Bb2 Nf6 Rd8 Ne4 Rdd6 Ne5 Rd1 Nd3 Rb1 Bg5 Nd7 Ke8 Nb6 Bf6 Nc8 Bd8+ Kb8 Kd7 Ka7 Ke8 Rc7 c6 Kb6 Re2 Na7 Rg2 Ba3 Be5 Bb2 Bg7 Bh4 Be7 Qe5 Kd8 Rc8+ Kd7 Bf2 c7 Bg3 Nbd6 Ka5 Bd8 Qa2 Nb7+ Ka4 Qh5 Ka3 Qh6 Rb8 c8N Ra8 Ne7 Rc8 Nd5 Rc6 Nb6 Qab3 Na8 Q4a4 Ke7 Qbb4+ Kd7
N2N2R1/b1PN2b1/r2PP1K1/nb1q3p/2q4r/Q1p1P1k1/r2nP2N/RB6 b - - 0 1 illegal: No proof kernel
rkN4n/Pq4p1/nb6/N1rb2P1/1nQ1p2P/qrPNN2P/B2R4/4K1R1 b - - 0 1 illegal: No possible last move
N1b1n1nN/3pP3/rP1r1N1P/1Q1n1b1k/P1Bp2N1/1K4R1/1n3P2/4qRn1 b - - 0 1 legal: proof: d4 a5 g4 b5 e4 e5 b4 h5 bxa5 f6 gxh5 b4 c3 b3 Bh6 Bb4 cxb4 Na6 Bf4 exd4 e5 Nb8 e6 Ra7 Bg3 Ra8 Be5 fxe5 Kd2 g5 a4 c5 h4 e4 a6 c4 e7 Kf7 a7 b2 Kc2 e3 h6 Kg6 h7 e2 b5 e1N+ Kd2 c3+ Ke2 g4 Qc1 g3 Kd1 g2 Be2 Nc2 Ra3 Na6 Bc4 Kh5 Nd2 b1B Qb2 Qa5 b6 Ncb4 Ne4 Nc7 Nf3 g1N Nh2 Ne8 Ng4 Nd5 Qb5 c2+ Kc1 Qe1+ Kb2 c1N Rg3 Nd3+ Kb3 Nb2 Nef6+ Kg6 Rgh3 Bf5 Rg3 Rb8 a8N Rb7 Rgh3 Ra7 Rg3 Ra6 h5+ Kg5 Rh2 Nh6 Rhg2 Rg8 h8N Rg6 Rh2 Ng8 Rhg2 Kh4 h6 Kg5 Rd3 Kh4 Rgg3 Kg5 Rd1 Kh4 Ne4 Kh5 Rc1 Rd6 Ra1 Qa5 Rf1 Qe1 Nef6+
2K3n1/1P1P2Qq/2pp3R/7P/PBRb2BP/3bk1Bn/2p2b2/Bn2N1br b - - 0 1 illegal: No proof kernel
1rN1b3/k1RPN3/P2N1pp1/b1Ppr3/1Q1b3b/K6N/2r1PPR1/B1n3r1 b - - 0 1 illegal: No possible last move, all moves rejected
1b1nb1B1/N1P1Bp2/q3B3/2QR3P/rnB1qPN1/1q4kP/2q4P/2q1rbK1 b - - 0 1 illegal: Other
k2Q3K/pnN2R2/1Pr1bR2/nB1n4/P1PR2bP/n3B2r/2PqRb2/1n4n1 b - - 0 1 illegal: No possible last move
8/2KpRBP1/1R1PB1N1/b1b1BQ1q/nP5B/Pq2pbr1/2r1nP1k/n5q1 b - - 0 1 legal: proof: e4 g5 b4 f5 exf5 b5 h4 a5 Na3 a4 Nc4 Na6 hxg5 Nb8 Na5 Nh6 c4 bxc4 Nb3 axb3 Be2 Ng8 Bd3 Ra5 Bf1 Ra8 Ke2 Kf7 Kf3 c5 Ke4 h5 Ke5 h4 g4 c3 d4 h3 a3 c4 f6 Kg6 d5 c2 f7 c3 Qf3 h2 Qe3 b2 Qg3 b1Q Qh3 Bb7 Qg2 Nh6 Bd2 c1N Ne2 c2 Bc3 Nf5 Ng3 Ne3 Qf3 Qa5 Rg1 h1Q Bb5 Na6 Rf1 Nc5 Rd1 Rg8 Nf5 Qg1 Bc4 Ne2 Rd3 Qb3 Re1 c1B Nh4+ Kg7 g6 Kh6 g7 Kg5 Bb2 Na4 Ng6 Nc2 Qe4 Rc8 Qf5+ Kh6 g5+ Kh5 Rg3 Be3 Rg2 e6 Bd4 Be7 f8B Bd8 Kd6 e5 Be7 e4 Be5 Na1 B7f6 Qb5 Rg4 Ba5 Rg2 Rge8 g8B Bc6 Bf7 Rg8 Nf8+ Kh4 g6+ Bg5 Rg4+ Kh3 Be7 Be3 Bh4 Beb6 Rf4+ Kh2 g7 Rh8 Ng6 e3 Rd1 Rh5 Be6 Rg5 Re4+ Rg3 Rc1 Qb1 Bb3 Ba8 Rc6 Ba7 Ra6 Rc2 Rb6 Bb7 Bc4 Qb3 Kc7 Bc6 d6 Ba8 Rd4 Bf3 Re4 Qd5 Bc3 Qe5 Bf7 Qe8 Re7 Qh8 Be5 Qh5 Kc8 Ra2 Bce6 Rc2+ Rc6 Bc5 Rb6 Rc4 Kb8 Rc2 Kc7
2rBBKnr/P3B3/P1b2pbP/2n1b1P1/Nb2kP2/B1Q1q1N1/p4R2/2b4n b - - 0 1 illegal: No proof kernel
r1k1q3/2q3nP/2n1b2N/1qbb3N/2QB1pP1/P2p1P1R/P2R3K/Rr2q1R1 b - - 0 1 illegal: No proof kernel
kb3r2/qp1b3Q/B2B1P2/P3nRr1/p2n1N1K/2B4P/Pq1P1n2/qq1R3B b - - 0 1 illegal: No proof kernel
3BQ1Nn/2Rn4/Nn3P2/1r3n1k/2p1P1R1/1rrrR1P1/bPP2bqp/K2R4 b - - 0 1 legal: proof: h4 b5 a4 g5 axb5 gxh4 e3 e5 d4 f5 dxe5 f4 Be2 f3 Kd2 fxe2 Kc3 Kf7 f4 Kg6 e4 e1R b6 h5 b7 a5 e6 c5 e7 d5 e8R a4 Nh3 a3 Be3 a2 Na3 d4+ Kb3 d3 Bd2 Nd7 b8R Ra5 Rb5 Qg5 Bc3 d2 Rf1 Re3 Rd8 Ne7 Qb1 d1R Re1 Nb6 Re2 Rdd3 Rd6+ Be6+ Nc4 Rg3 Nf2 h3 Rc6 h4 f5+ Kh5 f6 h2 Re1 h1N Rc7 h3 Ng4 h2 Qd1 Ng6 Re3 Be7 Qf1 Rc8 Rd1 Nh8 Nh6 Rh3 Qg1 Ng3 Ng8 Nf5 Qf1 Rg3 Qf4 Bd5 Qe5 Bf8 Qe8+ Qg6 Rb4 Rb5 Ka3 a1N Ka2 Nb3 Na5 Bh6 Nb7 Bg5 Rd4 Bh4 Ba5 Rh3 Ra4 Bf2 Ra3 Rb8 Rg3 Rc3 Rg4 Rhd3 Kb1 Bf7 Rf4 Qg3 Rg4 Qh3 g3 Qg2 Qd8 Nd2+ Ka1 Ndc4 Qd7 Ne5 Qe8 Ned7 Rb3 Ng6 Ra3 Ba2 Rb3 c4 Nc5 Rb7 Na6 Rb8 Bb4 Rb7 Be7 Rb8 Bd8 Rb7 Qe5 Nh8 Qe8+ Nf7 Nh6 Ra7 Nc5 Rf3 Na6 Rce3 Nb4 Ra3 Rbd3 Rb3 Qe6 Nh8 Na6 Na4 Ng8 Nab6 Rd4 Rec3 R4d3 Re3 Qe7 Re1 Rf3 Ree3 Qe6 Red3 Re3 Nd4 Qe5+ Nf5 Qe8+
q1Nb4/1NPp3p/k1bPb3/3nb1n1/P1b1B2K/PqBQ3P/4BB2/2R2rq1 b - - 0 1 legal: proof: f4 a5 a3 e5 b3 exf4 Ra2 a4 bxa4 c5 g4 f5 Kf2 b5 Rb2 f3 Rb3 f4 Rb4 cxb4 Ke1 Ra6 Bg2 Rf6 Bf1 Rf5 gxf5 Be7 Nc3 Bd6 Nb1 Bf8 Kf2 g5 c4 g4 d4 b3 e4 b4 f6 b2 c5 b3 e5 g3+ Ke1 f2+ Ke2 f3+ Ke3 g2 Kf4 Bg7 Kg4 Na6 e6 Bb7 e7 Nc7 h3 Nd5 c6 Qa8 Be3 Nh6+ Kg3 Nf7 Ne2 g1B Qd3 Rf8 Nec3 Ng5 Be2 f1Q Kh4 f2 Nd2 b1Q Nce4 b2 Nc4 Qg2 Bd2 f1B Nc5 Qd1 Bb4 b1B Bc3 Ba2 Nb6 Qb3 Nc8 Bh2 Rg1 Be5 c7 Bc6 Rh1 Qg1 Nb7 Kf7 e8B+ Ke6 f7 Bgf6 Bh5 Bd8 Be2 Rg8 f8B Rg7 Qc2 Rf7 Bc5 Rf2 B8h5 Rf7 Bef3 Bc4 Be4 Rf6 Be2 Rf1 Bg2 Bb1 Qd1 Bf5 Be4 Bg4 Qd3 Bf5 Ncd6 Ke7 Ba7 Be6 Nc8+ Ke8 Bb8 Nf4 d5 Rc1 Bd1 Qh2 Ncd6+ Ke7 Re1 Qg1 Be2 Ra1 Nb5 Rb1 Na7 Ra1 Na5 Kd6 Nc8+ Kc5 d6 Nd5 Rd1 Ra2 Ra1 Rc2 Rb1 Rc1 Ra1 Rf1 Rc1 B6b5 Nb7+ Kc6 Ne7+ Kb6 Nc8+ Ka6 Ba7 Bc6 Bf2
1RrN1r1B/1n1PK2b/1prNNp1b/4P3/1P6/PQ2bP1R/q7/2krqN1q b - - 0 1 legal: proof: c4 d5 b4 e5 h4 g5 e3 d4 Bd3 Nc6 Bc2 a5 Bb3 Nce7 d3 Nd5 cxd5 e4 dxe4 gxh4 e5 a4 Qg4 axb3 Qf3 Qg5 Qd1 Qd8 Ke2 Kd7 Kf3 c5 Kf4 h5 Kf5 f6 g4 c4 e6+ Kd6 f3 b6 a3 d3 e4 b2 g5 h3 g6 h4 g7 c3 Qc2 h2 Nd2 b1Q Qd1 h3 Qf1 c2 Ra2 Nh6+ Kg6 Ke5 g8N Kf4 e7 Ke3 e8N Nf5 Kf7 Bh6 e5 Qa1 Rb2 Qa2 Qd1 Ba6 Ne2 Nd6+ Ke6 Rc8 Ne7 Rf8 Nc6 Nb7 Nd6 Qc7 Nd8 Qc3 Rg1 h1R Nf4 h2 Rg8 Rg1 Kd7 h1Q Ke7 Rg4 Nfe6 Rgc4 Rh8 Bb5 Rg8 Bd7 Rh8 R4c6 Rb1 Be8 Ra1 Bg6 Nf1+ Kf2 Bf4 c1B Qb3 Ke2 Bg5 d2 Be3 Bg7 Bh6 d1R Rb1 Be3 Rb2+ Ke1 Rh2 Bh7 Rh3 Ke2 Rg8 Bh8 Bg7 Qe1 Ng3+ Kd2 Nf1+ Kc1 N6f7 Qah2 d6 Q2g2 d7 Qa2 Nd6 Rb8 N8f7 Rfc8 Nfd8 Ra8 Bf8 Bg7 Rh8 Bgh6 Bg7 Ra5 Rf8 Rac5 Bh8 Rc2 Rh5 Rg2 Re8 Rg8 Rh3 Rf8 N8f7 R8c7 Rb8 Rcc8 Nfd8
b3r3/4Rp2/2n3B1/n1pK1N2/b2P1qnP/1kPR1Q1p/nr1P2RP/R2N3b b - - 0 2 illegal: No proof kernel
6b1/1BPK1p2/2r2P1P/1pPp3n/R3b1Q1/1P1R2NN/bq1n3N/3rbnkN b - - 1 2 legal: proof: g4 c5 d4 e5 dxc5 h5 gxh5 a5 b3 a4 Qd2 a3 Qd4 exd4 Bb2 axb2 Kd2 Ke7 Kd3 Kf6 Kc4 Ke5 Kb5 Kf4 a4 d5 e4 g5 c4 d3 h4 g4 a5 b6 e5 d2 e6 d1B a6 g3 a7 g2 c6 Bd7 c5 Qe7 h6 Qd8 e7 Bc8 e8N Qf6 h5 Bd6 h7 Nd7 h6 Bc2 Ng7 Ne5 Ra4+ Be4 Nf5 Nc4 Nc3 b1B Rh3 Ne3 Nd1 Qb2 Ng3 Nf6 Nf3 g1N Nh2 Nh5 c7 Nf3 Kc6 Rd8 h8N Bf5 Bb5 Bh7 Ba6 b5 Bb7 Nd2 f3 Be7 Nf2 Bg8 Nfh1 Nef1 Ng6+ Ke3 f4 Bh4 f5 Ba2 f6 Re8 Kd6 Re6+ Kd7 Rc6 Nf4 Re8 a8Q Re5 Ne6 Rf5 Ng5 Rf3 Ne2 Be1 Neg3 Rf4 Qc8 Rf3 Nf5+ Ke2 Rg3 Rd3 Nh3 Rd4 Rc3 Rd3 Nfg3+ Ke3 Ng4+ Kf3 Nh2+ Kg2 Qe8 Rd4 Qe6 Rd3 Qg4 Rd4 Nf4+ Kg1 Rd3 Nc4 Rc3 Rd1 Rd3 Ncd2 Nh3+
1N1rB3/2PN1r2/1KBPp2p/P2qr1rP/2b5/2nnPp2/3Q2NN/k4Rbb b - - 1 2 legal: proof: b4 c5 f4 g5 fxg5 a5 bxa5 Qb6 a4 Nh6 Ra2 Qd8 Rb2 Ng8 c4 d6 Rb4 Be6 Bb2 Bg4 Bd4 cxb4 c5 Bd7 c6 Bc8 Bc5 dxc5 Kf2 b5 Ke3 f5 d4 Kf7 h4 Ke6 g4 Kd5 c7 Kc4 h5 h6 d5 e6 g6 b3 g5 f4+ Ke4 b4 g7 b2 g6 b3 a6 Nd7 a7 Ne7 g8B Ba6 a5 Ne5 g7 Nd3 Rh4 Rh7 Nd2+ Kc3 Rh1 b1R Ndf3 Kb2 Bh3 c4 Kd4 c3 Qd2+ c2 Nh4 Bc4 Bg2 Ka1 Bf7 c1R g8N b2 Nf6 Re1 Be8 Rf7 Ngf3 Rg1 Nd7 Rbe1 Nb8 b1B Nh2 Qd7 Bf3 Rg5 Ng2 Qb5 Na6 Rd8 a8N Bc2 Rf1 Bg7+ Ke4 Bd4 d6 Nd5 Nb8 Bg1 Nb6 Bb1 N6d7 Qb7 Ne3 Nc3+ Kd4 Bba2 Bc6 Bd5 Rf2 Bh1 Rf3 Bc4 Rf1 Nf2 Ng2 f3 Bd5 Qb3 Kc5 Nd3+ Kc6 Qa3 Kb7 Qc5 Bc6 Qd5 e3 Rc1 Ka7 Rb1 Rf2 Rb5 Ka6 Qf5 Ka7 Re5 Kb7 Qe4 Kb6 Qd5 Rf1+
K1b1R1B1/1NppB1n1/1qNr1b1p/5Pq1/1Q1P1k2/2P1Bb1P/Br2P2b/6q1 b - - 2 3 legal: proof: d4 a5 g4 b5 b4 f5 a4 fxg4 Ra3 e5 Rb3 e4 Rd3 exd3 axb5 a4 Nh3 Nc6 Ng1 Na5 bxa5 Ba6 Qd2 Bb7 Qd1 Bc8 Kd2 Ke7 Kc3 Kd6 Kb4 g5 f4 g3 b6 d2 Kb5 a3 b7 a2 b8B a1Q a6 g2 f5 g4 c3 g3 Qa4 d1B Be3 Qh4 Na3 Qd8 Qb4+ Kd5 Ba7 Ke4 Nf3 g1Q Bc5 g2 a7 Nf6 Ne5 Bh6 Nac4 Bg5 Bf2 Bb3 Nc6 Ne8 N4a5 Qb1 Nb7 Rb8 Ka6 Ng7 a8B Bd5 Ka7 Bf6 Be7 Kf4 h3 Qh2 Rg1 Bf3 Rh1 g1B Bg2 Qg3 Rh2 h6 Rh1 Bh2 Rg1 Rf8 Bh1 Bg4 Bd5 Bf3 Bg8 Qb2 Ra1 Qg1 Ra5 Rf7 Re5 Qb3 Bc5 Qbb1 Re8 Re7 Ba2 Re6 Be7 Qb2 Nd6 Rb6 Bb7 Rb5 Ka8 Qbb1 Ba6 Rb6 Nb7 Rd6 B6c4 Qb2 Qa5 Qbb1 Bg8 Rb2 Bf8 Qe7 Qb4 Qe3 Be7 Qg5 Qc5 Qbg1 Qa5 Qe6 Qb4 Qb3 Qc5 Qb5 Qb4 Qb6 Be3+
2B4R/4k2p/pK2b1Pb/3p1nP1/1NP1R1Bp/1Qrb1B1P/P7/Bn3qnr b - - 0 2 legal: proof: f4 c5 d4 e5 b4 exd4 bxc5 Nh6 g4 Ng8 g5 Qe7 Nc3 Qf6 Nb1 Qd8 g6 Qa5+ Nd2 Qa6 Ndf3 Nc6 Nh4 Nb8 Nf5 Qf6 Nh6 Qg5 fxg5 gxh6 Kf2 b5 e4 d5 c4 f5 h3 d3 Ke3 f4+ Kd4 d2 e5 b4 c6 h5 c7 f3 e6 h4 e7 b3 Kc5 f2 Qh5 d1B Rh2 b2 Qf3 b1N Bb2 Bh6 Bg2 f1Q Qb3 Be2 Bf3 Bd3 Ne2 Nc6 Nf4 Be6 c8B Nd4 Rf2 Ne2 Bf6 a6 Kb6 Ng1 Re2 Ra7 Re4 Rc7 Bd4 Rc5 Bb2 Ra5 Bc3 Ra3 Bb2 Nd2 Rae1 Nb1 R1e2 Bf5 Ba1 Be6 Qb4 Rc3 Qb3 Bg7 R2e3 Nh6 Re1 Nf5 R1e3 Bc2 Nd3 Rf8 Nb4 Bh6 Re2 Bd3 Rb2 Ng7 Rf2 Bf7 Bcg4 Nf5 Rfe2 Kd7 e8B+ Kd8 Bd7 Be6 Bc8 Ke7 Rb2 Nd4 Bd1 Rf2 Rbe2 Rh2 Rf2 Rh1 Rf8 Nf5 Bdf3 Kd6 Rd8+ Ke7 Rh8
3brR2/p1kb1P2/B1Nn1n2/1p1R1N2/p1p2PPq/2P4P/3Q2qr/1qNK3N b - - 0 1 illegal: Other
1rq1b1q1/R1Bp1ppb/1P2Q1p1/3N4/B5nP/2b1PP2/N2P1Bn1/1rk2KB1 b - - 1 2 illegal: Other
1N3N1K/7b/3kpr2/b2b1BQ1/2rpP1Rp/1P1p1pP1/rn1PqRNP/3N1n2 b - - 0 1 legal: proof: a4 c5 f4 g5 b3 gxf4 Bb2 b5 Bd4 cxd4 axb5 Qc7 Ra4 Qa5 Ra1 Qd8 Kf2 d5 Kf3 Kd7 Kg4 h5+ Kf5 a5 e4 a4 c4 a3 b6 a2 c5 f3 g3 f2 c6+ Kd6+ Kg5 f5 Kg6 f4 b7 f3 c7 h4 Ne2 Rh6+ Kf7 Nc6 b8N Bf5 Rg1 e6 Nc1 Nf6 Rg2 Nb4 Qc2 Ra4 Ne2 Ng4 Kg8 Rf6 Qc4 Nd3 Qb5 Bh7+ Kh8 Ne3 Nf4 Rc4 Nc3 Nb2 Nd1 Qe8 Rc1 a1R Rc3 Ra2 c8N+ Ke5 Ne7 Kd6 Qa5 Qb5 Neg6 Be7 Nf8 Bd8 Rc1 Qa6 Qb5 Ba5 Rc3 Rb4 Rc7 Rc4 Qa4 Qb5 Rg7 Qa6 Rg4 Qb5 Be2 f1B Rf2 Qa6 Bd3 Be2 Qb5 Nf1 Qc5+ Ke5 Kg7 Rc1 Bb5 Bc4 Qc8 Kd6 Be8 Qb5 Ng2 d3 Nc6 d4 Kh8 Qg5 Bg6 Qe3 Nb8 Qe2 Qb7 Rc2 Qg7 Bd5 Bf5 Rc4 Qg5
1bN5/1brNPpp1/BR1qN1P1/np3PK1/1NPn3R/1P2Qr2/1pb4p/5n1k b - - 0 1 illegal: No proof kernel
3N4/2bN2rb/PPq3q1/qBRb3b/3PRrP1/Rr2kP2/1n6/R3nK1B b - - 0 1 illegal: No possible last move, all moves rejected
1qBb2n1/1R6/4R3/2rPP2P/n3RppP/1rnPrn2/N4B2/2kNR1nK b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 h5 h4 Ke7 f4 Bh3 gxh3 exf4 Qb3 Kd7 Qg3 Ke8 Qg4 hxg4 Kf2 Kd7 Kg2 Kd6 e4 Kc5 b4+ Kd4 d3 a5 h5 c5 b6 g5 h4 f5 e5 c4 b7 c3 b5 g3 b6 a4 Na3 g4 Nh3 c2 Kg1 Kc3 Nc4 a3 Bg2 a2 Ne3 f3 Ng5 f2+ Kf1 f4 Rg1 Ra3 Rh1 Na6 b8R Be7 b7 Rb3 Nf7 Nc5 Be4 Na4 Kg2 f1N Bf5 Nd2 Re1 Nf3 Kh1 Qd6 Re2 Bd8 Bc8 Qb4 Bd2+ Kb2 Rae1 c1N Nd1+ Kb1 Be3 a1R Bg1 Na2 Bf2 Kc1 Re4 N2c3 Ra8 Qd6 Ra6 Qb8 Re6 Ra2 Rb4 Re2 Re4 Bg5 Nd8 Re3 Nc6 Bd8 Nb4 Rh7 Kg2 Rc7 Kh1 Rc5 Ra6 Qa8 b8R Qa7 Rb7 Qb8 Rc7 Nd4 Rb7 g2+ Kh2 g1N Kh1 Ndf3 Rg6 Ra3 Re6 Rb3 Na2+
4kN1r/pnb2B2/2Rbp3/BP1Rrpq1/nPpK1P1P/5bPn/7N/2R3R1 b - - 0 1 illegal: No proof kernel
R5q1/P4rPk/np2R1p1/BPnP1pq1/2Br1N2/1qb3P1/r1NR1p2/R1K5 b - - 0 1 illegal: No extended proof kernel
1b2k1n1/Ppp3P1/p3r3/1NRp1q1P/1PB5/1K1pRBB1/1PBN3n/rn1b4 b - - 0 1 illegal: No proof kernel
2nB3R/1r2ppN1/pbN1PkpK/Ppp2P2/1P1pq1B1/4r1p1/2P5/1NRn1N2 b - - 0 5 legal: proof: g4 c5 d4 h5 g5 b6 d5 Bb7 Qd4 Qc7 Qg4 Bc6 dxc6 hxg4 Bh3 Rh5 Kf1 Qd6 Kg2 Qd2 Kg3 Qd1 Bf1 Rxg5 Kg2 Rh5 Bg5 Rh7 Bc1 Rh8 Kg3 d5 Kf4 a6 Kg5 b5 h4 d4 f4 g3 e4 Qd2 a4 Rh6 b4 Qe2 a5 Qd2 h5 Qg2 e5 Rd6 f5 Qe4 h6 Kd8 c7+ Ke8 c8N Nc6 e6 Ra7 h7 Nh6 h8N Rd5 Be2 Rb7 Bf4 Na7 Bc7 Ng4 Nf3 Re5 Ng6 Ne3 Nfd2 Nd1 Nf4 g6 Nh5 Bg7 Bd8 Kf8 Bg4 Bh8 Kh6 Bf6 Nb6 Nc8 Nd7+ Kg8 Nb8 Bh8 Nc6 Bg7+ Kg5 Bh6+ Kh4 Bf4 Ng7 Kh7 Nf1 Kh6 Kh3 Kg5 Rh2 Kf6 Kh4 Rd7 Na3 Rb7 Rc1 Qh1 Nb1 Re3 Bf3 Bb8 Kg4 Bc7 Rh8 Qg2 Kh4 Bb6 Bg4 Qe4 Nb8 Ke5 Kg5 Rd7 Kh6 Kf6 Nc6 Rc7 Nbd2 Rb7 Nb1
5r2/kBrQn1pn/p2n2Pb/3PP3/2b4B/P2P4/1N3Rn1/nKB1QQ1n b - - 0 2 legal: proof: g4 c5 c4 d5 e4 e5 exd5 h5 b4 b5 f4 e4 g5 Bh3 a3 Qe7 Nc3 Qe5 fxe5 Nc6 Na2 Rd8 cxb5 Be6 b6 Ra8 b5 Nb8 Nb4 cxb4 Rb1 Bh3 Rb3 Bd7 Rg3 Bc8 Rg4 hxg4 h4 Kd7 h5 f5 d3 g3 Kd2 g2 Kc2 f4 g6 f3 h6 f2 h7 b3+ Kb1 e3 b7 Kc7 Qf3 Kb6 Qf7 b2 Be2 f1N Rh4 Bc5 Bh5 e2 Nh3 g1N Qf4 e1N Qb4 Ne2 Rc4 Be3 Qd6+ Nc6 b8B Nfg3 Rb4 Ng2 Bg4 Bh6 Rf4 Nd4 Rf2 Nb3 Qd7 Na1 Bd6 Nh1 Be7 Ba6 Bh4 Nf6 Bf5 Rhg8 h8Q Rgc8 Qf8 Rc7 Be6 Kb7 b6 Nh7 Qff7 Kb8 b7 Bc4 Qf3 a6 Qe2 Ka7 Qe1 Rf8 Bf5 Kb6 b8Q+ Rb7 Qbd8+ Rc7 Qf6 Ka7 Bg4 Ne7 Qf3 Nc6 Qfe2 Ne7 Q2f1 Rf7 Rf4 Rf6 Nf2 Rf8 Nd1 Nb3 Ka2 b1N Nb2 N1d2 Rf2 Ne4 Kb1 Nd6 Bd1 Na1 Ba4 Re8 Bc6 Rf8 Bb7
2b2Q2/2r1BPP1/rB1n4/p2r3N/1rq1P1p1/bPP1p3/k1KRBnB1/4B3 b - - 0 1 illegal: No proof kernel
N2B2Q1/1q1NRKp1/1p2rP2/2r4p/1PNn2b1/2kN1r1P/1n1bPnPN/4q3 b - - 1 3 illegal: No proof kernel forced: bxLB
n4b2/1b4p1/2p1ppb1/NQ1r4/R1PnPNPk/BqPN4/3KnPN1/q2N4 b - - 1 4 legal: proof: b4 a5 c4 h5 a4 b5 g3 h4 Bg2 h3 Ra3 hxg2 Rb3 Ra6 axb5 Nc6 b6 Nb8 b5 Ra8 Rb4 axb4 Qc2 Ra3 Qd1 Rc3 dxc3 Bb7 Na3 Ba6 Nb1 Bc8 e4 d5 h4 d4 b7 d3 h5 b3 h6 f6 h7 Kf7 b6 Kg6 Ne2 g1N Nf4+ Kg5 Kd2 b2 Qb3 e6 Ng2 Nh6 Qb5+ Nf5 Na3 b1Q Nc2 Qb3 Ba3 Nd7 b8N Bb7 Nc6 Qa8 N6b4 Ne2 Ra1 Kg4 Ra2 Nfd4 Nce3+ Kh3 Nd1 Rg8 h8N c6 Ng6 Rh8 Ra1 Rh5 N6f4+ Kg4 Ra2 Rd5 Ra1 Nb8 Ra2 Na6 Ra1 Nc7 Ra2 Bc8 b7 Qa5 b8N Na8 Ra1 Bb7 Nd7 Qa6 Nc5 Qaa4 Ke3 d2 Nbd3 Qa7 N1b2 d1B Kd2 Qa2 Nb3 Qa4 Rc1 Qa1 Na5 Qb3 Rb1 Ng1 Rc1 Bf3 Rb1 Nge2 Nd1 Kg5 Rc1 Bh5 g4 Bg6 Rb1 Qa4 Rb4 Qb3 Nge3 Kh4 Ra4 Bh5 Ke1 Be8 Kd2 Bg6 Neg2+
1r2B1b1/3p2pq/1BB2Q2/1QP2r2/kP1PrQPP/1b4rN/3K1N2/q3n1n1 b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 b5 a5 c4 Na3 Bc5 Nb1 Bb6 axb6 Qg5 Ra5 Qf6 Ra1 Qd8 g4 h5 b4 h4 Ra3 Rh5 Rg3 hxg3 h4 Ne7 Rh2 Rh7 Rf2 Rh8 Rf3 Ng8 Rb3 cxb3 d4 f5 e4 a5 c4 b2 c5 f4 e6 g2 e5 f3 e7 a4 b7 a3 Qe2 a2 Nd2 b1B Qe4 a1Q Ne2 g1R Qf4 f2+ Kd1 Nf6 Nc4 Nh5 Qe4 Ng3 Nb6 Bc2+ Kd2 Nc6 b8Q Bb7 Nc8 Kf7 Qg2 Ke6 Ke3 Qg8 Nd6 Qh7 Ne4 Kd5 e8Q Kc4 e6 Kb3 e7 Ka4 Qf8 Bb3 Qf6 Ne5 Nf4 Re8 Nh3 B7d5 Be2 f1R Bf3 Rf2 Qf1 Bg8 Bg2 Rf5 Nef2 Nd3 Bc6 Ne1 Bd2 Nc2+ Kd3 Ne2 Bf4 Rg3+ Kd2 Ne1 Bc7 Ng1 Bb6 Bbe6 Qbe5 Bb3 Qf4 Rab8 Bd5 Rf8 Bc6 Rf7 e8B Re7 Q4h6 Ree5 Qf4 Re4 Qxb5+
n3QN1Q/1qR3nR/Pp2P3/P1nn2K1/1Qr5/p1q3R1/P1NP4/bq1bk3 b - - 0 1 illegal: No proof kernel
2q4B/pQ3q2/Prp3BP/1b2n1BK/Nk4pP/2P5/3PQp2/qN2Q1nq b - - 0 1 legal: proof: g4 d5 h4 b5 a4 e5 b4 e4 f4 h6 a5 Bc5 Ra4 bxa4 e3 d4 exd4 Na6 d5 Bd4 Rh2 Bc3 Rg2 Be5 fxe5 Rb8 Rg3 Rb6 Rg2 Rf6 Rg3 Rf5 Rg2 Rh5 gxh5 Qf6 Rg4 Qd8 Rg5 hxg5 Kf2 Kd7 Kg3 f5 e6+ Kd6 h6 e3 e7 a3 e8Q e2 b5 Kc5 b6 e1Q+ Kh3 f4+ Qg4 f3 d6 a2 b7 a1Q b8B f2 d7 c6 Qee2 Nf6 Nf3 Nh5 Be5 Nb4 Qe6 g4+ Kh2 g5 Bf6 g3+ Kh3 g2 Kg4 Nd3 Bcb2 Ng3 Ne5 g1Q Nc4 Qh1 Nb6 Kb4 Na4 Ba6 Bh3 Qc7 d8Q Qc8 Qdd7 Bb5 a6 Qa2 Qee8 Qf7 Bg2 Qef1 Be4 Rg8 Qe1 Ne2 Bg6 Ng1 Q8e2 Ne5+ Kh5 g4 Bg5 Re8 Qc7 Re7 Qb8 Rb7 Qa8 Rb6 Qb7 Qfh3 Ba1 Qa3 Bd4 Qa1 Bb2 Nd7 Bh8 Ne5 c3+
1q1B4/p4bRQ/Pp1BR1n1/2b2p2/2n1P1R1/4pPqk/nPKQ1Prb/3B4 b - - 0 1 illegal: No proof kernel
qB2B2Q/B2P3n/3rP3/P1b1q1rb/R6q/PPnnk1n1/2KB1N1b/7Q b - - 0 1 illegal: No proof kernel
QQ2B2Q/Q2P2P1/r3k2R/r3rN2/1qn1q1rP/n4q2/P2Pp3/b1Kb1N2 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Rf4 a4 Rc4 Na3 Rc6 a5 Ra6 Ke2 Ra7 Ke1 Ra8 g4 h6 Bb2 Be6 Be5 Bc8 Bf4 Rh7 Rb1 Rh8 Rb3 Qd7 Rg3 gxf4 g5 Qd6 g6 Qd8 Rg5 hxg5 h4 Kd7 d6 e5 a6 c5 a7 b5 f7 c4 f6 c3 Ne2 e4 Rg1 e3 Bg2 g4 Bh3 b4 Nc2 b3 Rf1 f3 Nc1 b2 Na1 b1Q Rg1 c2 Qe2 f2+ Kf1 Nc6 Qc4 Nd4 Rg2 Bg7 f8Q Qe8 f7 Nf6 Qd3 Rh6 Nb3 Ke6 Na5 Nb5 Ke2 Nd5 Qa3 Qb4 Ncb3 c1R Nc4 Re1+ Kd3 f1Q+ Kc2 Nb6 Qh8 Ba1 f8Q Qf3 g7 Re2 Qa5 Na3+ Kc1 Qec6 Qa6 Qce4 d7 Bb7 Qb8 Bc6 Rg1 Ba4 Bf1 g3 Nd4+ Kd5 Bh3 g2 Bf5 Bd1 Bg6 Re1 Rf1 g1R Be8 Rg4 Nf5 Rc6 Qa5+ Ke6 Qa4 Rc5 Qa6 Re5 Qa5 e2 Nce3 Nbc4 Rf2 Reg1 Nf1 Rg6 Rg2 Rf6 Rg6 Rg3 Rh6 Rg4 Qbd8 Rb8 a8Q Rbb5 Q5a7 Ra5 Qac8 Kd5 Qcb8 Rfa6 Rh5 Ke6 Qba8 Rc6 Qdb8 Rca6 Rh6+
3RRkr1/2p3n1/1bN2PRB/1Qb2b2/KP1PRQ1n/4P1p1/P2q2r1/6br b - - 0 1 illegal: No possible last move, all moves rejected
1nB3q1/2r4b/P1QR1NPK/3p1qP1/2bbb3/1Rp1Pr2/n1PQ4/1Q1Q1k2 b - - 0 1 illegal: No possible last move, all moves rejected
6q1/NP2P3/2R2BPK/Pq2b1R1/q1PR4/rR3rr1/NRb1q3/kn3qn1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 c5 b4 a4 d4 Nc6 dxc5 Nb8 e3 b5 Bc4 Ra7 Bb3 axb3 a4 b2 a5 Ra6 Qd3 Ra7 Qb3 Ra8 Qa4 bxa4 Ke2 Ke7 Kf3 Ke6 Kg4 Kd5 Kh5 Kc4 g4 d5 e4 f5 e6 a3 c6 f4 e5 a2 c3 Kb3 g6 f3 b5 d4 c4 d3 g7 d2 b6 d1Q g5 f2+ Ne2 f1R e7 Rf3 e8R Bd6 c7 Nc6 b7 Nf6+ Kh6 Bf5 c8R Bc2 g8R Ne4 e6 Be5 e7 Nd4 Be3 Nc3 Na3 b1Q Rg1 Kb2 Nf4 Nde2 Rg2 Ng1 Rd2 Qe2 Ng6 Qd5 Rg7 Qg8 Rc6 Qbf1 Rec8 Nb1 Nf4 Rg3 R8c7 Rf8 Nd5 Rf7 Nb5 Rff3 Bb6 Ra3 Na7 Qf5 g6 Qd7 Rd6 Qb5 Rf7 Rgf3 Be3 Rg3 Rcc6 Rf3 Kg5 h5 Rf5 h4 Nb4 h3 R6d4 h2 Bf2 h1Q Bh4 Rh7 R2d3 Rf7 Kh6 Rg3 Rg5 Rff3 Rc3 Qhg2 Re3 Qgf1 Red3 Nc3 Re1 a1Q Na2 Qad1 Re3 Nb1 Rb3+ Ka1 Rb2 Qed3 Re3 Qdb3 Red3 Q3a4 Rdb3 Qdd3 Rh5 Qdd1 Bf6 Qde2 Rg5
4b1n1/qbb2n2/7k/b5B1/r1P1PR1K/2P1PBN1/3Pb1Nn/Nn1NrN2 b - - 0 1 legal: proof: g4 d5 a4 h5 gxh5 e5 f3 e4 fxe4 a5 c3 c5 Qb3 c4 Qb4 axb4 Ra2 d4 b3 d3 Rc2 dxc2 bxc4 Qg5 Bb2 Qe7 Bc1 Qd8 Kf2 b5 Kg3 g5 h4 f5 e3 Kf7 a5 Kg7 a6 f4+ Kf2 f3 Kg3 g4 a7 f2 Bb2 c1B Ne2 b3 Ba3 b2 Bg2 f1B Be7 b4 Bg5 b3 Na3 b1N Nc2 b2 Na1 Qd7 Bf3 Bb4 h6+ Kg6 h7 Ba5 Rh3 Nc6 h5+ Kg7 Rh1 Nd8 Kh4 Nf7 Ng3 Be2 Rf1 Bb7 h6+ Kg6 Rf2 Qe7 Nf1 g3 Kh3 g2 Kh4 Rd8 a8N g1N Nb6 Ra8 Na4 Bc7 Nc5 Ra4 Nd3 Qa3 Bg2 Qc5 Rf4 Qa7 Nf2 Ba5 Nd1 Nf3+ Kh3 Nh2 Bf3 Na3 Kg3 b1B Kh4 Bc2 Nb2 Nf6 Nd1 Rf8 h8N+ Kh7 Rf5 Ng8 Ng6 Nb1 Ne7 Ba3 Rf4 Bd6 Nf5 Bdc7 N5g3 Kg6 h7 Bb3 Be7 Kh6 h8N Ra8 Nc2 Ra1 Ng6 Ba4 Bf6 Be8 Bd8 Ra4 Na1 Nh8 Kh3 Nf7 Nh4 Qb6 Ng2 Ra6 Nh1 Qa7 Kh4 Rb6 Bf6 Rb2 Be7 Rc2 Nhg3 Rc1 Nf2 Re1 Nd1 Ba6 Bf6 Bb7 Bg5+
N5B1/2p1B3/p1nrP1R1/1pk1bPBq/1PP3pq/b1P2b2/1N1B4/KnB2r2 b - - 0 1 illegal: No possible last move, all moves rejected
3bK1n1/RP6/Pr2N3/2RN2NP/1P2b1R1/1rPr1b1Q/3n3b/qbRk3n b - - 0 1 illegal: No proof kernel
R3brB1/KR1P2N1/1rr5/k3P3/1Rbb1rp1/1R3q2/n1PP2P1/N2N2rq b - - 0 1 illegal: No proof kernel
1b4n1/2b1nnp1/r2P1Rb1/5Pqp/P1bKRP2/2NB4/3bRkP1/BB4R1 b - - 0 1 illegal: No proof kernel
1b2K3/2p2r2/P1BP4/B2r1ppB/NBN1p3/1PN1P1q1/PnR4r/1q1bk3 b - - 0 1 legal: proof: g4 g5 f4 h6 fxg5 Nf6 g6 Ng8 g7 Nc6 Bg2 Nb8 Bh3 Na6 Bf1 Nb8 b4 a5 g5 Na6 g6 Nb8 d3 Ra7 Qd2 Ra8 Qg5 hxg5 bxa5 b5 Na3 d5 Nc4 b4 Nd2 b3 Ndf3 b2 Be3 Nd7 Rb1 Nc5 Rc1 Nb3 cxb3 Qd6 Rc3 Qd8 Rc4 dxc4 Kf2 Kd7 Kg3 Ke6 Kg4 b1R h4 f6 h5 c3 d4 c2 a6 c1Q d5+ Kd7 Kf5 e5 h6 e4 d6 Qe8 h7 Ra1 Bh3 Qb1 Bc5 Rb8 e3 Rb5 Nd2 Ne7+ Kg4 Kc6+ Kh5 Kd5 g8N Bg7 Ne2 Nc6 Nc4 Nb4 Rc1 Qe5 Rc2 Nd3 Bd7 Qg3 Bb4 Nb2 Bc6+ Ke6 Ba5 Rd5 Ne7 Bd7 Nc8 Kf5 Nc3 Rf8 Ba4 Rf7 N8b6 Bh8 Kh6 Kg4 g7 Kf3 Kg6 Bg4 g8B f5 Bc6 Bd4 Nba4 Ba7 h8B Bb8 Bd4 Nd3 Bc5 Nb2 Nd2+ Kf2 Bcb4 Ke1 Nc4 Rh7 Kf6 Bd1 Kg6 Rh2 Kf7 Rh7+ Ke8 Rf7 Rg2 Qd3 Bh7 Rc1 Rh2 Qb1 Bg6 Rc2 Bh5 Re2 Rh4 Rf2 Rf4 Rg2 Rf2 Rh2 Rc2
4qbb1/3p4/NR3R1B/Pn2r2N/N3qnKp/PP1P2n1/1k4rP/3rNb1R b - - 0 1 illegal: No proof kernel
B1K4n/1Rp2pBn/pB3Ppb/P1QR2P1/P7/R2q3n/p1Pk3n/rbB5 b - - 0 4 legal: proof: a4 h5 g3 b5 g4 a6 Ra3 Ra7 Ra1 Rb7 b3 Rb6 a5 Re6 Ba3 Re4 Bc1 Ra4 bxa4 Rh6 Ra3 Rh7 Ra1 Rh8 e4 d5 exd5 b4 Bb2 Nf6 Na3 bxa3 Ne2 h4 Ng3 hxg3 h4 Rh6 h5 Rg6 h6 Bf5 h7 Bd3 h8R Kd7 f4 Kd6 g5 Kc5 d6 Kc4 f5 e5 d7 g2 Kf2 g1N Ke3 e4 Bg2 Ne2 Qg1 Nh7 f6 Qe7 d8B Qd6 Be7 Nd7 Rd1 Rh6 Rh3 Qd5 Bc5 Ne5 Bb6 Nf4 Bf3 Bf1 d4 Neg6 Qf2 Qd6 d5 Kb4 Kd4 e3 Rb1 e2 Ke4 Qd7 d6 e1N Qe3 Qb5 d7 Bc4 d8B Ba2 Be7+ Kc4 Rd1 Bb1 Rd5 Qd7 Rg8 Nh8 Ke5 g6 Bd6 Bg7 Rb8 Rh5 Bf8 Bh6 Rb7 Rh4 Rg3 Nh3 Bg7 Qd8 Rd6 Kb4 Kd5 Rh5 Bg2 Nf3 Kc6 Nh2 Rd5 Rh4 Qe5 Rd4 Qf5 Rd1 Bh1 Ba2 Bf3 Ra1 Be4 Bb1 Qe5 a2 Ra3 Qf8 Kd7 Qc5 Kc8 Qc3 Qe7+ Kc4 Rc5+ Kd4 Qd6+ Ke3 Bc6 Qb3 Rd5+ Ke2 Qc5 Qf3 Rb8 Qe4 Ba8 Qd3 Rb7 Kd2 Bc1+
2qq1r2/1r2q1QB/1k1b3B/Nq1P1P2/B6B/pqPP2P1/6N1/1q3bKQ b - - 0 1 legal: proof: b4 b5 h4 g5 hxg5 c5 a3 f5 bxc5 f4 a4 b4 Rh2 Nc6 Rh5 Nd4 Rh1 Nb5 axb5 Qb6 Rh3 Qc7 Rh1 Qd8 e4 d5 c3 d4 Rh3 d3 Re3 fxe3 Ra2 Nf6 Rc2 Nd5 exd5 dxc2 f4 Kd7 g6 Kc7 d3 e5 c6 h5 g7 a5 g8B b3 g3 b2 Qg4 e4 Qg7+ Kb6 c7 a4 Bh3 h4 Kf1 a3 Qh6+ Bd6 Nd2 b1Q Qh5 Ra7 Nb3 Rb7 Bd7 h3 Ne2 h2 Bh7 Rf8 Na5 Qb3 Be8 Be6 c8Q Bf5 Qd7 h1Q+ Ng1 Bg4 f5 e2+ Kf2 Qhh4 Bg5 c1Q Nh3 Qcb2 Qg7 e3+ Kg1 Qc8 Nf4 Bh3 Qhh6 Bf1 Ng2 e1Q Qh5 Qe4 Qh1 e2 Bh4 Qeb1 Bd7 e1Q Bc6 Kc5 b6 Qe7 Be8 Qed8 Ba4 Rb8 b7 Kb6 Bc6 Qee7 Ba4 Ra8 b8B Ra7 Qf6 Rb7 Qg7 Bb4 Bf4 Bd6 Bc1 Qb5 Bcg5 Q2b3 Bh6
5Qqb/n2QrrP1/6rn/3r1Pn1/bPRRB3/P4P1q/Rb2KB2/R6k b - - 0 1 legal: proof: e4 d5 h4 a5 c4 g5 hxg5 f5 exf5 b5 Na3 a4 Ne2 Qd6 Nd4 Qd7 cxd5 Qd6 b4 Qd8 Nc4 bxc4 Nb3 axb3 d4 Kf7 g4 e5 d6 h5 a3 c5 d7 e4 f3 b2 g6+ Kf6 d5 Ke5 d6 b1N g5 c3 g7 c2 g6 c4 Bb2+ Kf4 Bh3 Kg3 Ra2 c1R Bc3 h4 Bf6 e3 Bb2 e2 Rh2 c3 Rf2 c2 Bg4 h3 Rf1 Kg2 Bf6 h2 Ba1 h1Q Bd4 Nd2 Bf2 Nh6 g8Q Qh3 Bh4 Ra7 Be7 Bg7 Qe8 Ne4 Bh5 Rg8 Qf7 Bh8 Bh4 Nc6 Bf2 Ng5 Kd2 Qf8 d8R Bd7 Rc8 e1R Qf6 Be8 d7 Ra5 d8R Na7 Rc3 Ba4 Kd3 Qg7 Qf8 Qf7 Rcc8 Rg7 Rh1 Qg8 Rc3 Ra6 Rc4 Ree7 Qd2 Rce1 Rd5 R1e2 Rha1 c1B Rd6 R7e5 Qd1 Rb7 g7 Bb2 Be8 Rf7 Bc6 Rc5 Bb7 Ree7 Be4 Rce5 Rd7 Rg6 Ke2 Kh2 Qd5 Kg2 Qc6 Rb5 Rdd1 Rd5 Rdd4 Kh2 Qd7 Kg2 Ke1 Kh1 Ke2+
2Q1r1q1/PrqNb3/BBQ2r2/1N2br2/1P1n2P1/3N3N/P1PKb1p1/k2n4 b - - 0 1 illegal: No proof kernel
B1KB4/4rQ2/k6B/3P1Rnr/pPBQ1qb1/PP5P/1p5b/1nnb2qR b - - 0 1 illegal: No possible last move, all moves rejected
2B5/1p2pQN1/3n2N1/Pnbqnrqk/2nQ4/QP1r4/1n1BP1PP/1bK4Q b - - 0 1 illegal: Other
RKnrRb2/B1p1Q3/b1rn1Ppn/r1B1P1P1/3Pq3/5k1B/2P1r2Q/1Bq5 b - - 0 1 illegal: No proof kernel
1KQb3k/3p1B1Q/1N1P3n/rnP2p1N/1p2P3/n1bqQ2P/bP1Qqr1B/8 b - - 0 1 illegal: No proof kernel
b4n2/2P5/1b1P1P2/Qnqb2k1/2RpP1PR/B4B1K/Pqqb1N1N/3q2r1 b - - 0 1 illegal: No proof kernel
Nn1b3r/knPb2R1/Pn4nB/P2RrQ1B/4NnqP/2P1r3/n1P1q3/K7 b - - 0 1 illegal: Other
B2NRq1r/1r4bb/Pb1n3R/n1B3Q1/Pq2q2P/b1N2r2/qPPKPk2/8 b - - 0 1 illegal: Other
4B1r1/1NP1b2q/pKNb1n1P/2RP4/PP1rPk1p/1Q1n3R/r2q2n1/B5b1 b - - 0 1 illegal: No proof kernel
rkN4n/5rQ1/1Rq2nn1/bpBbbP2/bP3PPn/3RPp1K/3N1P2/7B b - - 0 1 illegal: Other
1n5q/KQP3kn/7P/2rPN1qp/1prPP1Bp/3q1NR1/1P5R/bB1b3r b - - 0 1 illegal: No possible last move
RQ1nN3/pN1P4/3pp2k/1BB3P1/2KP1r1n/Prb1rq1P/2bR1P2/1n2b1q1 b - - 0 1 illegal: No possible last move, all moves rejected
2b1K3/k3Pn1R/prrpP3/BB1qn1rP/pbr4N/Pbq1P2Q/3P1NR1/8 b - - 0 1 illegal: Other
2Qq3B/1PbPk1PN/1pp1N3/p1P1nqpn/2rrb3/P4B2/1Kb1n1P1/1R2R3 b - - 1 3 illegal: No proof kernel
3Q4/bBp1knn1/1p1n3q/2Pp1p2/PK1Brq2/NP1rPP2/2N1RPn1/1R5b b - - 0 3 illegal: No proof kernel
Rb3q1k/1N1p1Rpp/2BP1r1P/5n1P/P1bpn3/3P1b1K/2r3P1/2QqNb1B b - - 0 5 illegal: Other
1n4Bb/1R1N1PpK/3n2r1/n2bPP1b/PR2P1R1/1rkr1B2/6P1/Q3rn2 b - - 0 1 illegal: Other
1n6/1PP2qP1/bN1r4/RQ2P1P1/rnR1pb1p/2PRBk2/1r4N1/r3b1K1 b - - 0 1 legal: proof: d4 b5 h4 e5 a4 c5 axb5 d5 dxc5 g5 e4 Ke7 f4 Kd7 Bd3 Ke8 hxg5 exf4 e5 Nh6 Bg6 Ng8 Be4 dxe4 Kf2 Ke7 g4 Ke6 b4 a5 b6 h5 g6 f5 b5 a4 b7 a3 c6 a2 b6 f3 c7 h4 Qe2 f4 Qe3 Qd7 Kf1 f2 Qf3 Ne7 Ne2 Ra4 Ba3 Nd5 Qb3 Bh6 g7 Qf7 Bb2 Rd8 Qb5 Nb4 Rh3 Rd6 Nbc3 Bg5 Rc1 a1B Rd3 Bh6 Kg2 f1R Nd5 Rf2+ Kg1 f3 Bd4 Bf4 g5 Kf5 Be3 Bc3 Ra1 Bd2 c3 Kg4 Ra3 Be1 Ra2 Nd7 b8R Ba6 b7 Rh2 Rd8 Nb8 Nb6 Rf2 Rd4 Rh2 Rc4 Rf2 Ng3 Rb2 Nh5 f2+ Kh1 Bg3 Nf4 Kf3 Ng2 Bf4 Bd4 Bfd2 Be3 f1R+ Kh2 Bf2 Ra3 Ra1 Ra2 Bde1 Kh1 Bg3 Kg1 Bf4 Ra3 Nc2 Ra2 Rab4 Ra5 Rba4 Rd7 Nb4 Rd8 Rg6 Rd1 Rd6 Rd3
Q2qn2B/3q1BP1/5Prp/1b2kP1R/2BpP2r/1P2n3/2R2P2/1Kb1nnN1 b - - 0 1 illegal: Other
3KRr1r/q4p1N/B4P2/2N1BbqP/1PP3Pp/3Pk3/4qqqQ/1n3Nb1 b - - 0 1 legal: proof: d4 d5 Kd2 c5 a4 cxd4 c3 b5 axb5 d3 Ke3 d4+ Kf3 d2 Qb3 d3 Ke3 d1Q h4 g5 Ra2 d2 Ra1 Na6 Qc4 Nb4 Qb3 Nd3 exd3 Qd5 Ra3 Qd6 Ra1 Qd8 h5 Bh6 Ra4 Qd7 Rah4 Qd6 Qc4 Bg7 b4 Bf8 Qb3 Qd8 Be2 Qd7 Kf3 Qf5+ Kg3 gxh4+ Kh2 Kd8 Bf1 Ke8 Nf3 Qd7 Kg1 Qd8 Ng5 Nf6 Nxh7 Ng8 Kh2 Kd7 Kh3 Kd6+ g4 Ke5 c4 Kd4 f4 a5 b6 e5 b7 a4 b8N a3 f5 a2 Bb2+ Ke3 Qc3 a1Q Qc2 e4 Bg2 Qf1 Nd7 d1Q Nc5 Qg5 f6 Qde2 Be5 Ne7 Nd2 Nd5 Rg1 Qff2 Re1 Nc3 Qa2 Qg1 Qb2 Bf5 Nf1+ Kf2 Bf3 e3 Bb7 Qa7 Ba6 Nb1 Qc2 Kf3 Qb2 Qd1 Qh2 e2 Bb5 Qc2 Ba6 Qd4 Ng3 Ke3 Kg2 Kd2 Kf3 Bd6 Rf1 Raf8 Rh1 Bc7 Re1 Bb6 Nf1+ Kc3 Rd1 e1Q Rc1 Qed2 Re1 Qa2 Bb8 Qg1 Re8 Kd4 Nd7 Qe1 Bd6 Qg7 Kf4 Qag2 Bb8 Qee2 Bc7 Kc3 Bd6 Be3+ Ke5 Qg5 Nc5 Kc2 Bb8 Kc3 Kd6 Kd4 Ng3 Qge1 Nf1 Bg1 Bc7 Q1f2 Bb8 Qaa8 Kc7 Qa7+ Kd8 Be4 Nd2 Bf5 Be5+ Ke3 Nf1+
R4r2/nP1qrPPP/3q3Q/pNN4R/Pbrr1n1P/n1B3k1/b4b2/2K3N1 b - - 0 1 illegal: Other
K2kq3/R1qpP3/NbQq2np/bNRP3n/n3P3/2b2PP1/rB4NP/3r4 b - - 0 2 illegal: No possible last move, all moves rejected
1n2b3/1rkNN1r1/Q6p/1n2b3/PqB1Np1P/PPq3b1/P3K1RP/qq4R1 b - - 0 1 illegal: Other
b6b/1B1P1qB1/1N1n1pRK/k7/4R2p/P5PP/nbPrqP1q/2q1b1RQ b - - 0 1 illegal: No proof kernel
1r2bB1N/p2nkR1n/P7/3q3P/npPq1RK1/1Pb2Pp1/2q2P1R/B2r2Q1 b - - 0 2 illegal: No possible last move
2q4k/rn3B1B/NPRqn1Qp/pPp2b1b/2P1Nb2/P6P/qn2P3/3B1K2 b - - 2 3 illegal: No proof kernel
4nn1R/2pnNPPq/K1Pp1q2/B1q2P1p/2PQ4/6R1/1rk1R1BP/2bbb3 b - - 0 1 legal: proof: e4 f5 exf5 b5 c4 a5 b4 axb4 c5 Ra7 d3 Ra3 f4 g5 f6 Rb3 f5 Na6 Nc3 Nb8 Nd5 Rc3 Nf4 Rc4 dxc4 gxf4 Kd2 Kf7 Kd3 e5 a4 b3 g4 b2 a5 b1Q+ Qc2 f3 g5 b4 a6 b3 a7 d6 a8R b2 R1a5 e4+ Kc3 f2 Kb4 e3 Kb5 e2 Bg2 f1Q Qd2 e1B Nh3 Bh6 Nf2 Nd7 Qc3 Nf8 Ng4 Bb7 Bh3 Bf3 c6 Bd1 R5a6 Qc2 Qa5 b1N Rb6 Nc3+ Ka6 Qcf2 Qa4 Ne4 Rc8 Qc5 Rb1 Qe2 Ne3 Qh5 g6+ Ke8 g7 Ng6 f7+ Ke7 Nf1 Kf6 Bg5+ Ke5 Rb2 Kd4 Bf6+ Kd3 Bd4 Ngf6 Bc3 Bc1 Rg1 Nd7 Re2 Nef6 Qa1 h6 Bd2 Kc2 Qd4 Qe7 Ra8 Rb8 Rg3 Rb2 Rh8 Ne8 Bg2 Ngf8 Bb4+ Kb1 Bc3 Qf6 Ba5 Qhg6 Ne3 h5 Nd5 Qh7 Re5 Kc2 Ne7 Qhg6 Re6 Qh7 Re2+
N2q3b/kq2P1p1/bb2p3/2nQp3/2q1B1N1/1PPnP1P1/1P1B2Rr/1qB3K1 b - - 0 1 illegal: Other
n2k2n1/3p2r1/1B2P2N/2bpqrnn/3RR1BP/P2P1P1Q/p4PRp/5K1b b - - 0 1 illegal: No proof kernel
2K2Q1q/1P1pprR1/2RR3b/P1P3pp/brN1Pn2/1q3n2/p4PP1/k1B1B3 b - - 0 2 illegal: No proof kernel
kn6/p1pbqpQ1/rP1B1r2/5PP1/NN1KBRrn/2P2PNP/3p1np1/8 b - - 0 1 illegal: No proof kernel
1qB1Bn2/1nrN2R1/K1PRp1P1/1p3Bp1/1P2P3/2rp1PPn/1qk2pQb/8 b - - 1 3 illegal: No proof kernel
K2Nr3/7Q/p1R2R1p/b1P2p1n/B1qB3P/PbnPr1PB/1b1rnP2/r4k2 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 g5 Nh3 c5 bxc5 g4 Nc3 gxh3 Ne2 Qa5 Ng1 Qd8 Ke2 Kd7 Ke3 Kc6 c4 f5 a3 e5 g3 b5 Bb2 h6 Qc1 a6 Qd1 h2 Ne2 b4 Qc2 b3 Nc1 Qd5 Qb1 Bg7 Bg2 Nf6 Ne2 Re8 Ra2 Nh5 Rg1 h1R Rf1 Be6 Ba1 b2 Qe1 b1N Bh3 Nc3 Rg1 Ra7 Nf4 Rd7 Qe2 Rd6 Rb1 Rdd8 Rb5 Rg1 Bb2 Ra1 Qg4 Nb1 d3 Re7 Qg6 Rde8 Qh7 Bf7 Bg4 Rb7 Ke2 e3 Ne6 e4 Bf6 Qd4 Rc2 Rbe7 Rb7 Qc3 Ra7 Rb7 Rc1 Rb2+ Rc2 Bg8 Rf7 Qb4 Bc3 Bd4 Rf6 Bf7 Kf1 e2+ Kg2 e3 Kf3 e1B Nd8+ Kd7 Rc1 e2 c6+ Ke7 c7 Nc6 Ne6 Kd6 c8B Ke5 c5 Bd2 Bd7 e1R Nd8 Re3+ Kg2 Ba2 Rg1 Qc4 Rf1 Rc2 Bb2 Ba5 Re1 Re4 Kf3 Bb3 Re2 Bdc3 Re1 Kd4 Re2 R4e7 Ree6 Re2 Bc1 Bb2 Be3+ Kc3 Rd6 Nb4 Ba4 Kc2 Rde6 Kd1 Rb6 Nc2 Rbe6 Ng7 Rb6 Nd4+ Kf4 Ke1 Rbd6 Nb5+ Bd4 Kf1 Rde6 Rd2 Ke5 Na7 Kd6 Nb5+ Kc6 Nh5 Rd6 Ree2 Kb7 R2e3 Ka8 N1c3 Be5 Nd4 Rc6 Nde2 Bd4 R3e5 Bb5 R5e7 Ba4 Re3 Bh3+
1R1q4/5r1N/K1n1pPkp/1Pb2p2/3B2BP/bq1bbQ2/2P1PPn1/bBN2r2 b - - 0 1 illegal: No proof kernel
1Q1b3r/p1B5/3r1kPP/PRKnp1rb/1pb1P1B1/1P5n/1pPNq3/1b2NN2 b - - 0 1 illegal: No proof kernel
q2nBk2/b1nb1r2/RrppqB1P/Bb1Ppp1P/5P2/R4K1p/P1QN3P/8 b - - 0 1 illegal: Other
B5q1/Pn2q3/1NP1rPkr/n1Nr2n1/3qP1P1/1b1R3P/1b2KB2/r3Q1Q1 b - - 0 1 illegal: No proof kernel
4k1rb/2pnB3/2q3Bb/P1q3Q1/R2bPPP1/q2N1rr1/1RPP4/1Q1K1n2 b - - 0 1 legal: proof: h4 e5 b4 d5 b5 g5 hxg5 d4 b6 d3 exd3 axb6 Qg4 b5 Qd1 b4 Ke2 f5 Ba3 f4 Nh3 e4 Ng1 e3 Nc3 Bf5 Kf3 Bg6 Bc1 Be4+ dxe4 e2 Nd5 Qe7 Ne3 fxe3 Ba3 Qd6 Bc1 Qd8 a4 e1B Ke2 h5 g4 b5 f4 h4 g6 h3 a5 b3 g7 b2 Rb1 h2 Nf3 b4 Rg1 h1Q Ra1 b1R Ng5 b3 Bg2 b2 Bf3 Qd4 Ra3 Qc5 Rg2 Nh6 g8Q Qh3 Qb3 Bh4 Qg8 Nf5 Ra1 Ng3+ Ke1 e2 Ra3 Nf1+ Rf2 Nd7 Nf7 Bf6 Qg5 Bh6 Ne5 Rb8 Rh2 Rb3 Nd3 Rg8 Ra4 Bh8 Rh1 Ra1 Bg2 b1Q Ba3 Rc3 Rg1 Qbb6 Qb1 Qbc6 Bb4 Raa3 Rh1 Q5b5 Be7 Qbc5 Rg1 Ne3 Bf1 Rcb3 Kf2 e1B+ Ke2 Bf2 Rh1 Bg1 Ke1 Rc3 Be2 Nf1 Kd1 Qg3 Rh5 Bf8 Rh6 Bgd4 Rg6 Bh6 Re6 Qa8 Rb6 Qac6 Rb2 Qe3 Nf2 Qh3 Bc4 Rg3 Bd5 Raf3 Nd3 Qh5 Bb3 Qhg6 Bc4 Qgd6 Be6 Qa3 Bf5 Qdc5 Bg6+
2qB4/n4P1Q/pkpP2Kn/2rP2R1/PnBRrb2/2q4P/2rP4/2bQ1N2 b - - 0 1 legal: proof: g4 h5 c4 hxg4 Bg2 d5 cxd5 f6 Nc3 f5 Ne4 f4 Ng3 fxg3 Bh3 Kf7 Bf1 Ke8 b4 a6 e4 Kf7 b5 Be6 d6 Bd5 exd5 Ke8 b6 Nc6 Qb3 Qb8 Qd1 Qa7 bxa7 Nb8 Ke2 Kd8 Kd3 e5 Ke4 g5 Kf5 b5 f4 g2 a4 g3 h3 g4 Kg5 e4 f5 b4 f6 b3 f7 b2 Be2 b1Q Bf3 e3 Be4 e2 Kf5 e1N Ba3 Qd3 Nf3 g1B Nd4 g2 Bc1 g3 Qb3 Be3 Ne6+ Kc8 Nd8 g1R Qd1 g2 Qc2 Bf4 Bb2 Nh6+ Kf6 Bg7+ Kg6 Re8 Nc6 Kb7 Bf6 Kb6 Na5 Nc6 Bh4 Bb2 Rc1 Rac8 a8Q Na7 Bd8 Qc3 Qd1 Nc2 Bd3 Re4 Bc4 Nb4 Rb1 Rge1 Rg1 Bc1 Rb3 Qh8 Rd3 Qc3 Rd4 R1e3 Rf1 Re1 Rf2 g1Q+ Rg2 R1e3 Rg5 Qg4 Qb7+ Kc5 Qa8 c6 Bd3 Na2 Bb5 Qc4 Kf6 Rb8 Be7 Rc3 Kg6 Nb4 Bf6 Rb6 Qg8 Qc8 Qh7 Rc2 Bd8 Qc3 Nc4 Rb7 Ne3 Rb8 Bd3 Rb5 Bc4 Ra5 Bf6 Kb6 Nf1 Rc5 Bd8+
1K2B1bN/1b1pP2n/1nP1N1p1/Q1P1P3/q3rQ2/bP2Pr2/2R2bkB/4q3 b - - 0 1 illegal: Other
b3nkq1/1B5P/Q2p1PqP/2n4N/3Qp3/PRP2R1q/2Ppn3/KN2br2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 b5 Qe2 f5 exf5 c5 Qf3 b3 Qd1 b4 Bb2 Ra7 Bd4 cxd4 Ke2 Rc7 Ke1 Rc3 dxc3 Qa5 Bc4 Qb6 Bf1 Qd8 Nd2 e5 h4 g5 f4 d6 a3 e4 f6 g4 f5 g3 Nh3 d3 Nf4 b2 Rb1 g2 Rh3 g1N f7+ Ke7 h6 b3 h5 Nd7 h7 Ngf6 h6 Nc5 Re3 Bb7 Qc1 Ba8 Ra1 b1Q Kd1 b2 Nh5 Bg7 Be2 Rf8 Bg4 Qa2 Rb1 Qc8 Rg3 Ne8 Be2 Be5 Bf1 Rg8 f8Q+ Kd8 Rh3 Bg3 Qg7 Rf8 Qd4 Ke7 Be2 Qg8 Bg4 Rf7 f6+ Kf8 Bd7 Rg7 Bc6 Bf2 Rf3 Qh3 Bb7 Rg5 Ra1 b1Q Ra2 Qbb3 Nb1 Qbf7 Rb2 Qfg6 Rb3 Rg4 Qd2 Be1 Kc1 Ne2+ Kb2 Rg1 Ka1 Rf1 Q2e3 d2 Qed3 Qd7 Qb5 Qh3 Qa6
2n1R1Nn/P1Qb1pK1/2k3P1/rrPR4/4n1pP/2P3P1/1b3q2/qQb1rBN1 b - - 0 1 illegal: No proof kernel
1N1B1Kn1/2rRp3/8/PnP2Q2/R1P2nB1/bPP1Pr1p/3rqb2/bk1bQ3 b - - 0 1 illegal: Other
1b4k1/1PP1pQ1q/1q2b3/n1bpR1K1/P1nN1rQ1/q1PP1r1q/6PR/2B1N3 b - - 0 1 illegal: No proof kernel
4qr2/K4P2/1pQBnPrP/3R1b2/pP5n/1br1PRb1/P2p3N/k1B2Q1q b - - 1 2 illegal: No proof kernel
2K4Q/1Q2NP2/3p1P1q/4Br1p/P1pPb2k/RR1P4/P1rn1bNr/nb2r3 b - - 0 1 illegal: Other
3Q4/1R1r1n2/p2rQK1B/1Nb2pPP/P2P3r/q3p1nr/Rr2PP2/knB5 b - - 0 3 illegal: No possible last move
b5kB/1np5/P2R1B2/Q1N2P2/1p1KQ2r/rqP4p/PpPn1R1P/qb2b3 b - - 0 2 illegal: No proof kernel
b5Bk/Pn5P/1q2pb1P/2P3n1/pQ1Qr1P1/4Pq1n/1p2R1pK/N1R1r1B1 b - - 0 1 illegal: No proof kernel
3bRnrq/pP2nNPp/2Q1P2r/4p1NR/2B1p2P/nPb5/Pk6/4q1QK b - - 1 2 legal: proof: f4 e5 e4 d5 c4 b5 b3 Bg4 f5 Bh5 cxb5 Be2 Bb2 Bc4 Bd4 dxe4 Be3 g5 Bf4 Be6 fxe6 gxf4 Kf2 Ke7 g4 Kd6 Kg2 Kd5 h4 Kd4 g5 f5 b6 c5 d3 c4 g6 c3 b7 c2 g7 c1B Nc3 f3+ Kh2 f4 Be2 f2 Nh3 f1N+ Kg1 f3 Qe1 Ne3 Ng5 Bd2 Rd1 f2+ Kh2 f1Q Rg1 Bc5 Kh1 Nd7 Rc1 Nc2 Nb5+ Kd5 d4 Bb6 Bd3 Ne7 Nd6 Bc3 Ndf7 Nf8 Qf2 Na3 Bc4+ Kc6 Qg3 Rg8 d5+ Kc5 d6 Kb4 d7 Qe1 Rc2 Qc8 d8Q Ba5 Qd2 Bd8 Qc1 Ba5 Rd2 Nd7 Bb5 Bd4 Nh6 Rf8 Nf3 Rf6 Nf7 Qh8 Qc6 Rh6 Bc4 Kc3 Rf1 Bdb6 Qg1 Rg8 Rff2 Nf8 Rd8 Bb4 Re8 Bd8 Rg2 Bba5 Rg5 Kb2 Rh5 Bc3 N3g5
q3r3/2P1Rkp1/NP1n1bpB/4n1P1/1PNQP3/2PbQp2/4RKnp/2n4r b - - 0 1 illegal: No proof kernel
NR2b3/1np2rPr/6pB/2Ppp1P1/3P1P1P/1KB1qn2/p2q1Q2/1Q3Nkr b - - 0 3 illegal: No proof kernel
B3K3/B1N1p1bp/pQpr1Q2/n3rbb1/1RP5/P2p3P/1PNP1Pbk/q6n b - - 3 4 illegal: No proof kernel forced: bxDB
NB6/nk1P2N1/1P3P1b/rrn3Pp/P1b1Br2/q2q1P2/1NR1bKb1/1R6 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 b4 a5 b5 Ra6 Qg4 Ra7 Qb4 Ra8 Nc3 axb4 Na4 Qd7 Nc5 Qd6 Nxb7 Qd8 g4 Kd7 d4 h5 a4 c5 d6 e5 f3 e4 f6 b3 d5 b2 g5 b1B Bf4 c4 Bg3 c3 Nh3 e3 Bg2 e2 Bh2 c2 Ng1 c1Q+ Kf2 e1R Bf4 h3 Rh2 Qa3 Na5 Re4 Be5 Ne7 Nc4 Rf4 Ne2 Ba6 Ng3 Kc8 d7+ Kb7 d6 Bh6 Nb2 Bd3 Bf1 Bc4 Rb1 Nec6 Bd3 Na7 Nf5 Rf8 Rg2 h2 Ng7 h1B b6 Re8 Rh2 Bg2 Bg6 Be2 Bh7 Bac4 Bd3 Rd4 Be4+ Rd5 Bf4 Na6 Bg3 Nc5 Be5 Qd3 Bg3 Qe7 d8N+ Kc8 Nde6 Kb7 Nc7 Qf8 Bg6 Re4 d7 Rf4 Be4 Qe7 Rhh1 Qd6 Rhc1 Qa3 Bh7 Rdf5 Rc2 Qdd3 Bh2 Nb5 Bg6 Ra5 Na8 Na7 Bg3 Nb3 Bh7 Rfb5 Bf5 Nc5 Bh2 Rd4 Bb8 Rf4 Be4+
1n2n1K1/4P2P/pN1P2Pp/b1RBN1b1/P1P1nq2/BR4r1/2k1r3/1N1q1r2 b - - 0 1 legal: proof: g4 e5 f3 h6 b3 e4 g5 d6 g6 e3 Bb2 Be6 Bf6 Bf5 Bg5 hxg5 h4 c5 h5 c4 bxc4 d5 c5 d4 h6 d3 exd3 Bd6 h7 Be4 fxe4 Be7 Qh5 Bf8 Qh6 gxh6 Ke2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Kd4 c4 b5 a4 f5 e5 g4 c6 g3 c7 b4 c8N b3 e6 g2 Rh4+ f4 Rh1 f3 Ra3 a6 Nb6 b2 Rb3 e2 Kg4 e1B Kf5 f2 Rh5 Be7 Rg5 Nf6 Nf3+ Kc5 Be2 g1R Ne5 Kd4 Bf3 Rg3 Bd5 Ne8 Rh5 Bg5 e7 f1N Ke6 Qc7 Kf7 Rg8 Nc8 Ra7 Nb6 Rg7+ Kf8 Rf7+ Kg8 Rb7 Ned7 Qf4 Ne5 Kc5 d4+ Kd6 d3 Ba5 Bc6 Rf5 d5 Kc5 d6 Kd4 d7 Nd2 d8B Ne4 Bc7 Ke3 d4+ Ke2 d5 Kd1 d6 Kc2 Bd5 Rf6 Nc3 b1Q Bd8 Qd1 Nb1 Rf7 Bc7 Nc6 Bb8 Rf5 Ba7 Nb8 Nc8 Rf7 Bc5 Rb6 Ba3 Rb5 Bb7 Rd5 Ba8 Rd2 Bd5 Re2 Nb6 Qh4 Rb5 Rf1 Rc5 Qf4 Rh3 Rgg2 Re3 Rg3 Rb3
5q2/pp2BNqP/2B1r3/2k3RP/n1P2n2/NR2n1PR/P1P5/rqn1b1K1 b - - 0 1 illegal: No possible last move
2r5/p1P1r3/PPRnpk2/B5NK/r1bNBr2/b2PP3/5r1P/1qbRBq2 b - - 0 1 illegal: No proof kernel
3n4/1r1PPpn1/1rbbN3/bq1p3R/1P1RP2K/p2b2B1/n1BP1P2/1N1R1k2 b - - 0 2 illegal: Other
1r6/pn1Kp2B/q1NP1Nk1/4R1Bb/p2bP2P/b1p2b1P/P3NP2/rR1r4 b - - 0 1 illegal: No proof kernel
2K2Rk1/1p1pB2N/1q2p1pr/1rpP4/p1N1BPPP/3n1rB1/PPp5/R4nb1 b - - 0 1 illegal: Other
1k3R1K/1r4rN/2PQ4/1P4p1/1PqP1PP1/3qQ1q1/2N2bN1/1bnB1qn1 b - - 0 1 illegal: No possible last move
b2q1b2/Q2PP3/1p2PPR1/3r2PP/2k2nKb/2nrq2N/1Q1B1p2/2Q3R1 b - - 0 1 legal: proof: d4 a5 g4 d5 c4 e5 cxd5 h5 dxe5 a4 g5 a3 Bh3 Na6 bxa3 Be6 a4 Bc8 a5 Nb8 f4 g6 f5 Bd7 f6 Be6 Bg4 hxg4 Nd2 Bc8 Nc4 Qe7 Ne3 Qd6 Nf5 Qd8 Kf2 gxf5 Qa4+ Nd7 Ba3 Nh6 Re1 Bd6 Qd1 Nb8 Nf3 Kf8 Qa4 Kg8 Ng1 Kh7 Ra1 Bf8 Ke1 Ng8 Bc1 Kg6 Ba3 Kh5 Bb2 Kh4 Nf3+ Kh3 Ng1+ Kg2 Kd1 Kf2 Qe8 Ke3 Bc1+ Kd4 Qxf7 Kc5 Ke1 Kb5 Kf2 c5 Kg3 c4 h4 c3 e4 c2 a4+ Kc4 a6 b6 a7 Nd7 e6 Nc5 e7 Ne6 a5 Bb7 a6 Nf4 Bd2 c1Q e5 Rb8 h5 Ba8 Nh3 Rb7 Ra5 Rd7 Rg1 Rd6 Kh4 g3 Qh7 Rd7 d6 g2 Ra2 Qc3 Ra3 Qe3 e6 Nh6 Qg6 Ng4 Ra5 Nf2 Rc5+ Kb3 Rc8 Nd1 Qh7 Nc3 Qg8 Bc6 a8Q Kc4 Rb8 Bb7 Qa7 Ba8 Qg6 Nfe2 Qe8 f4 Kg4 f3 Qg6 f2 Qc2 Nf4 Qb2 Rg8 Qb7 Rh8 a7 Rg8 Qf3 Rh8 Qd1 Rg8 Rf1 g1B Qdc1 Bh2 Rg1 Bg3 Rc8+ Rc7 Rb8 Bh4 Rc8 Rc5 Rb8 Bb7 a8Q Rd5 Qaa3 Ba8 Qa7 Bg7 Qba3 Re8 Qab2 Bf8 Rc8+ Qc7 Rb8 Rd8 Rc8 Rd7 Rb8 Qd8 Rc8+ Rc7 d7 Rc6 Rb8 Rcd6 Rg2 Rd3 Rh2 Bg7 Rh1 Qf8 Rg1 R6d5 Re8 Qh8 Rg8 Bh6 Rg6 Qd8 Rg3 Bf8 Rg1
8/k2Rn1P1/qb2P2q/rP4Pb/Q1PrQpN1/1P6/2b1N2B/rr2n1QK b - - 0 1 legal: proof: d4 b5 h4 f5 e4 g5 hxg5 c5 dxc5 e6 f4 b4 e5 b3 Bd3 Bb7 axb3 Ba6 b4 Bc8 Be4 fxe4 b5 Nf6 f5 Nd5 f6 Ne7 Ra3 Ng8 Rf3 Ne7 Rf1 Ng8 Rf5 exf5 Kf1 a5 c4 h5 g4 d5 Kg2 Kd7 c6+ Kc7 f7 Kb6 b3 d4 g6 e3 g5 a4 c7 a3 g7 e2 Rh2 e1R Qc2 h4 Be3 a2 Qb2 a1R Nf3 h3+ Kg3 f4+ Kf2 Qd6 Bc1 d3 Rh1 h2 Kg2 d2 Nc3 d1B Rg1 Ka7 Ne2 Bc2 Kh1 Bg4 c8Q Nd7 e6 Ne7 Qa3+ Qa6 Qc6 Nc5 Ne5 Nd3 Qa4 Bh5 Ng4 Rf1 Ba3 Rfb1 Rd1 Ne1 Qe4 Rd8 Bc1 Rd4 Be3 Nd5 Nf2 Bc5 f8Q Ne7 Ng4 Bb6 Bg1 Rg8 Qff5 Ra8 Qc5 Rd6 Qcd4 Kb8 Qf3 Bf7 Rd2 Qc8 Rd3 Ra5 Qc5 Ka7 Qe4 Qa6 Rd1 Nd3 Kg2 h1Q+ Kf1 Qh7 Kg2 Qh6 Bh2 Ne1+ Kh1 Bh5 Qg1 Rd7 Rd5 Rd8 Rf5 Rdd1 Rd5 Rd4 Rd7+
B1r2r2/2b2r1k/P2n1Q2/4pnPP/2R3BP/1q1P2p1/1q2P2B/NQ3Kbq b - - 0 1 legal: proof: b4 c5 a4 a5 bxa5 g5 c4 h5 g4 d6 gxh5 g4 f3 g3 Ra3 Bg4 fxg4 Ra6 Rb3 Ra8 Rb4 cxb4 c5 d5 Na3 Qc7 Nc4 dxc4 Qb3 Qb6 Qd1 Qd8 h4 f5 c6 Kf7 g5 Kg7 c7 b5 c8Q e5 d3 f4 a6 b3 a5 b2 a7 b1Q a6 c3 Qh3 f3 Ba3 b4 Qd7+ Ne7 Bg2 b3 Qh3 c2 Bb2 c1B Qc8 f2+ Kf1 Be3 Qc2 Qd4 Qc4 Nd7 Qe1 Rc8 a8B Nf5 Bh3 Kh7 Be4 Nc5 Bg4 Bd6 Qe6 Bc7 Nf3 Nb7 Nd2 Nd6 Ba8 Rhf8 Qf6 Qa1 Bc1 b2 Nb3 b1Q Qb4 Qaa2 Na1 Qdb2 Qe1 Beb6 Be3 Qab3 Bd4 Q1c1 Qd1 Qc6 Qb1 Qcc1+ Kg2 f1R Bg1 Rf7 Bh2 Rf4 Rf1 Bg1 Rf2 Qc6+ Kf1 Qh1 Rf3 Rb4 Re3 Rbb8 Re4 Rcf8 Ra4 Rbc8 Rc4
4BQ2/r1QR1p2/1PrrP1kr/3qP3/3b2Rr/2PR1P2/1Pn1Kbp1/n4N2 b - - 0 1 legal: proof: g4 c5 a4 b5 axb5 e5 h4 Ba6 d4 Qg5 dxe5 Bc8 Be3 Qd8 Bd4 cxd4 h5 Bb7 h6 Be4 Rh2 Bg6 Rh1 Bh5 gxh5 Bd6 Nd2 Qh4 Ndf3 Qd8 Nh4 Bf8 Ng6 hxg6 e4 a5 e6 d5 b6 a4 h7 d3 h6 d4 e5 d2+ Ke2 d3+ Kf3 g5 c3 g4+ Ke3 g5 f3 a3 Qc1 d1R Ra2 g3 Ra1 g2 Rh2 d2 Bd3 a2 Rh3 g4 Bb5+ Nd7 Rg3 Nf6 Ke2 Ra7 Kd3 Nd5 Ba6 Nc5+ Ke2 Ne3 Bc8 Qd5 Kf2 Nb3 Ke2 Bc5 Qc2 Kf8 Bd7 Bd4 Rb1 a1R Be8 R1a4 Qd3 Nc2 Qc4 Nba1 Qc7 Rc4 Rc1 Rc6 Rb1 Rf1 Rc1 d1R Rb1 Rd3 Rd1 Bf2 Rd2 Rd4 Rd3 Rf4 Qb8 Rd1 Qc7 Rg8 h8Q Bd4 Rh3 g3 h7 Rh4 Rh1 Rh6 Rh4 Bf2 Rg4 Rh4 Qf6 Rg6 Qfe7+ Kg7 h8R Bd4 Rf8 Kh7 Rg8 Rgh6 Qf8 Bf2 Nh3 g1B Nf4 g2 Nh5 Bd4 Ng3 Bgf2 Nf1 Bde3 Rb4 Bc5 Rgg4 Bcd4 Re4 Kg6 Rb5 Qa2 Rd5 Qa5 Rd7 Qd5 Rf4 Qc4 Ne3 Bc5 Nf1 Qa2 Re3 Rdd6 Rb4 Qd5 Rd3 Bce3 Re4 Bd4 Rg4+
r1Q1q3/p5P1/3P1K1b/4PNB1/2BqPnpB/Q1R3Pr/1b1n2Pk/2n3n1 b - - 0 1 illegal: Other
3b4/1p1N2PQ/b1P1rqp1/1P1QP3/1r2Rrnn/q3B1P1/1bP1Nb2/1kQK4 b - - 0 1 illegal: No proof kernel
5N1K/Q2Np1p1/3BP1Pn/2RN3k/2rP3b/Pp2P1q1/rb2b1bP/2q2Qn1 b - - 0 1 illegal: No proof kernel forced: wxDB
N1b4k/n1b5/P2RppP1/1NPPP1p1/Q3K3/bq3PQ1/1Bnrp3/1Qn1r3 b - - 0 1 illegal: No proof kernel
6K1/nB1NpQp1/rqb2rn1/1PP1P3/q3k1N1/P1P1R3/NN4P1/2n4r b - - 0 1 legal: proof: d4 f5 e4 c5 dxc5 Qc7 b4 Qc6 e5 Qd5 Nd2 Qc6 Ne2 Qb5 Nf4 Na6 Ne6 Qa5 Nxf8 Nb8 Rb1 Qd8 Nxh7 a5 Rb3 Nh6 Re3 Ng8 Re4 fxe4 Ba6 Qb6 Ba3 Qc7 Bxb7 Qb6 b5 Qd8 Bb4 axb4 Ke2 Kf7 Ke3 Kg6 Kf4 d5 h4 e3 c3 d4 a3 d3 Qf3 e2 Nc4 e1R Nb2 b3 Nf6 d2 Rh3 d1Q Nd5 Qb6 Nb4 Nh6 Na2 Bd7 Qd5 Rc8 Re3 Nf7 f3 Rc6 h5+ Kh7 h6 Kg6 h7 Nh8 Ke4 Rf6 f4 Rh1 f5+ Kg5 Qg8 Ra6 Qf7 Ng6 h8N Qc2+ Kd5 Kf4 Nd1 Nc6 Nb2 Re6 f6 Na7 Qf8 Be8 f7 Rf6 Qg8 Bd7 f8N Be8 Nf7 Bc6+ Kc4 Qd1 Nh6 Qc2 Ng4 Kf5 Rf3+ Ke4 Nd7 Qd1 Qf7 Qc2 Nd3 b2 Rg3 b1N Re3+ Kf5 Kd4 Nd2 Nb2 Nb3+ Kc4 Nc1 Bc8 Ba8 Bb7 Kf4 Kd5 Qa4 Bc6 Rf5 Ke6 Bb7 Qf6 Ba8 Kf7 Bb7 Be4 Ba8 Kg8 Bc6 Qf7 Rf6 Nb8 Be8 Bb7 Bc6 Nd7 Kf5 Rd3 Ke4 Re3+
K2NQbk1/4r2b/2Q2q2/PQrPBP1N/4n1b1/1B2Pn1P/2P5/b1n1r1n1 b - - 0 1 illegal: No proof kernel
N3b3/1rrNP2P/6P1/q1P2nK1/k1N1r3/PNb3nQ/bn1PR3/1qr3R1 b - - 0 1 illegal: No proof kernel
4K2R/krPp2q1/rp3rr1/2QP3N/4RnPp/nq3Rb1/1PPNbP2/6R1 b - - 0 1 illegal: No proof kernel
rrRBn3/1P2p2p/P5P1/K1Q1qP1r/2r3P1/3PNkn1/P2R4/bB2qq2 b - - 0 1 legal: proof: e4 d5 h4 b5 b4 a5 Na3 g5 hxg5 f5 Nc4 fxe4 bxa5 b4 Nb6 Ba6 c4 Bb5 cxb5 Qd6 Nc4 dxc4 Qe2 Qd7 Qd1 Qd8 f4 Kd7 g4 Ke6 d3 c5 Kd2 e3+ Kc2 c3 Kb3 c4+ Ka4 e2 g6 e1Q b6 c2 a6 b3 f5+ Ke5 b7 c3 Rh3 b2 Bd2 c1Q Be3 b1R Bd2 c2 Ba5 Kf4 Bb4 Qc7 Be2 Bg7 Nf3 Nc6 Nh4 Nd4 Ba5 Nf6 Rh2 Qe5 Bd8 Ne8 Ng2+ Kg3 Bf3 Ne2 Ne3 Kf4 Bd5 Ng3 Bb3 Rb2 Qd2 Kf3 Qa5 Qcd1 Qc3 c1R Qc5 Rc4+ Kb5 Qf1 Rc1 Qde1 Rd2 Rb8 Ka5 Rg8 Rc3 Rc2 Rd1 Rh2 Rd2 Rh5 Rc1 Qd6 Bc2 Ba1 Bb1 Qe5 Bc7 Ng7 Rc2 Rgc8 Bd8 Ne8 Rb2 Ra8 Rb6 Rcb8 Rc6 Rc8 Rc7 Rcb8 Rc8
2n2qqk/1p2pp1P/q7/2B1PQP1/R5pK/B3P1nn/1N1P1PP1/3rb1R1 b - - 1 3 illegal: Other
5K2/1Pn1B1n1/N2P1b2/2NbqrRP/n1Pp1P2/QP1Pp1b1/kn2B3/6qr b - - 0 1 illegal: No proof kernel
1n6/bk2Pr1p/P1bP1P2/br5P/p1b3qQ/P1N1P1n1/1R2B1Rq/Kn5N b - - 0 2 illegal: Other
1r3q1n/6b1/p2rB1Qr/PB3RP1/qp3p2/1P1P1R1b/P1KP1PNk/6br b - - 1 3 illegal: Other
kN6/p3npBP/b1p4P/K3b2p/3N3b/1P1q1P1P/Pb2nP1r/1NrB2R1 b - - 2 3 illegal: Other
5r1k/2Kb4/3P3P/PpP1NN2/2nP3P/B3P1bb/BQ2rn1q/3qqQq1 b - - 0 1 illegal: No proof kernel
1R3Bb1/B1kr2nQ/nR1b2Qq/bN4Qq/2p5/2qN4/2R3K1/RNBR4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 Na6 a4 Nb8 axb5 Qd7 Ra6 Qd6 Ra1 Qd8 gxh5 a6 b4 Bd7 b6 Nc6 b5 Nb8 b7 Ra7 b6 Be6 bxa7 Bc8 Bb5+ axb5 Kf1 Kd7 a8N c5 f4 e5 h4 g5 d4 c4 f6 g4 f7 b4 h6 b3 d6 e4 f5 b2 d5 e3 h5 e2+ Kg2 e1Q f6 g3 h7 Nh6 Qd3 Qde8 Nc7 Q8e4+ Nf3 Qe6 Qg6 Nc6 b8R Na5 Rh2 Nb7 Ne5+ Kd8 d7 Qb4 Nd3 Qa6 Nb5 Nc5 Rb6 Nf5 h6 Bd6 f8B Qc3 f7 Rg8 h8Q Ng7 h7 Bb7 N5a3 Kc7 d8R Qaa5 Be7 Na6 f8B Bc8 Beg5 Be6 Bge3 Qc5 Bf2 Qe3 Rdb8 Qh6 Rh1 Qh5 Rd1 Qh6 Re8 Bf7 Re2 Be6 Rc2 Qh5 Be7 Rd8 Bf8 Rd7 Qg8 Bf7 h8Q Be6 Qg8h7 Bg8 Qg5 Qh6 Qhg6 Qh5 Qhh7 Qh6 Nd2 b1Q Bc5 Qb5 Ndb1 Qba5 Nb5+ Kc8 Kf3 g2 Bd4 g1B Kg2 Bb4 d6 Bh2 N5a3 Qe5 Nb5 Ba5 Bc5 Qe2+ Bf2 Qeh5 Bc5 Re7 d7+ Kd8 Rb7 Bd6 Ba7 Nf5 Rb6 Ng7 N5a3 Kc7 d8R Rf7 Rdb8 Rd7 Nb5#
bR1N2BK/4nr2/1Q1r1BqN/5qqR/RqQn1knb/8/4Q2N/2NBN3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 h5 d4 c5 g4 h4 b6 e6 f6 c4 f7 c3 g6 c2 b7 h3 g7 b3 g5 h2 g6 b2 Ra4 Qa5 Kg5 e5 f4 e4 f5 e3 f6 e2 Na3 b1Q Bb2 e1N Nf3 Qc7 Be2 Nc6 b8R Nge7 g8N Qb7 g7 Qd7 Nh6 Ra6 g8B Bg7 f8Q Qd8 f7 Kc7 d6+ Kd7 d5 c1Q+ Qd2 Nc2 Bd1 Ne1 Nc2 Nd3 Nce1 Nf2 Kh5 Bd4 Qc2 Qe8 Qc4 Bc5 Qg7 Qd3 Qg2 Bb7 Bd4 Qc8 Bf6 Rh7 Qf1 Qcb1 Qe2 Qb4 Kg5 Ba8 f8N+ Ke8 Ne6 Kd7 Kh5 Rf7 Kg5 Qh7 Nf4 Be3 Kh5 Nd4 Nfd3 Bf4 Nc1 Bg3 Rf1 h1Q+ Kg5 Qh2 Rh1 Qg1 Rh5 Qe4 Nh2 Qeg2 N6g4 Bh4+ Kh6 Rf8 Kh7 Rf7+ Kh8 Rb6 Ne3 Qg6 Nf5 Q1g5 Nh6 Ng4 Qe6+ Ke8 d7+ Kd8 Qce2 Kc7 d6+ Kc6 d8Q Qd7 Qb3 Qdf5 d7 Kd6 Qbc2 Kd5 Qdc7 Rc6 Qb6 Rd6 Qf2 Ke6 d8N+ Kd5 Qcc5+ Ke4 Qe2+ Kf4 Qcc4
q1B4K/NNk2rQ1/nr1Q1RR1/1r2N3/6N1/r1qB4/4qrQ1/2BnRn1N b - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kc3 Kd7 Kd4 c5+ Ke5 h5 e4 a5 d4 h4 b4 a4 g5 c4 g6 h3 d6 c3 d5 h2 g7 a3 b6 a2 b5 g2 f5 c2 f6 Rh7 b7 Nh6 g8B Ra3 b6 Na6 b8Q Qf8 b7 Rf7 Qd2 Nf5 Qa7 Rg7 b8N+ Kc8 f7 Qd8 f8R Nc5 Nc6 Rf7 Nh3 g1Q Bd3 f1R Nf2 Rb3 Na3 Rb4 Nb5 Rc7 Rf6 Rb7 Be6+ Rd7 Rb1 Qg2 Rg1 a1R Nh1 Qe2 Rgg6 Qe1 Qg2 Na6 Qd4 f2 Nba7+ Kb7 Qc3 Rf7 d7 Qc8 d8N+ Kc7 d6+ Kb6 d7 Nb8 Nb7 Ne3 d8Q+ Qc7+ Qd6 Na6 Bh3 Nd1 Bc8 Ra3 Ke6 Qe3 e5 Qe2 Kf5 Rbb3 e6 Rb5+ Qce5 Qb8 e7 Qa8 e8N Rab3 Ba3 c1Q Bb2 Qcd2 Bc1 Qc3 Kg5 Ra3 Kh6 Rg1 Ra1 f1R Qee7 Rf2 Qf8 Re1 Qg7 Ref1 Kh7 Re1 Ng3 h1N Kh8 Rg1 Nf5 Ng3 Ne5+ Qc6 Rb1 Nf1 Ng3 Rh1+ Qh7 Rh4 Nh1 Rhb4 Qg7 Rbb3 Rf3 R3b4 Nf6 Rb2 Nfg4 R2b3 Qe6 Kc7 Rff6 Qc3 Rb2 Qe3 Re2 R3b4 Re1 Qe2 Qed5 Rb6 Qd4 R4b5 Qd6+
3rQ1q1/R1RN2Qq/nn4r1/3N1k1n/N1p1Rb2/4B1N1/1rN1QbK1/2B1B3 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 f4 h5 g5 Kd7 g6 Nf6 Bh3 Ng8 Bg4 hxg4 f6 Kd6 f5 Be6 Ra2 Kd7 Ra1 Bf7 gxf7 Rh3 Qf3 Rh5 Qd1 Rh8 Kf1 g5 b4 e5 d4 c5 h4 a5 h5 a4 h6 e4 b6 a3 h7 e3 d6 a2 b7 e2+ Kg2 e1Q b5 c4 b6 g3 d5 g4 Nc3 Bh6 f8B Qde7 f7 Nc6 b8B Bg5 b7 Nb4 f6 Ra3 Na4 Qd2+ Qe2 Qe6 Ba7 Qf4 b8Q Qee3 Rh4 Qe8 Bae3 Rd3 Qb5+ Kd8 d7 Na6 Bb4 Qf5 f8Q Rb3 f7 Nf6 Qg7 Nh5 f8N Bf4 Be1 Rb2 Qc6 Rg8 h8N Qh7 Nhg6 Qe6 Qa8+ Kc7 d8N+ Kd6 Ne7 Qc8 Qh6+ Ke5 d6 Rg6 Nd5 Kf5 d7 Rg8 Rb1 a1N Nc6 Nc2 d8R Ncb4 Nd7 Rg6 Rh8 Qcg8 Ra1 Rd6 Qg7 Rg6 Nc7 Nd5 Nb4 Nb6 Qe8 Rd6 Nc2 Rd1 Kf1 g2+ Kf2 Rd4 Nd5 g3+ Kf3 Bc7 Re4 Bf4 Qf2 Rd2 Ne2 g1B Kg2 Rd1 Qf3 Bf2 Ra3 Qg6 Rh6 Q6h7 Rc6 Rd3 Rc7 Rd2 Kh3 g2 Ra2 g1R Ra1 Rg6 Ng3+ Kg5 Qe2 Rd4 Kg2 Rd1 Ndc3 Rd6 Nb8 Rd7 Nd5 Rd8 Nd7 Nb8 Ra3 Nf6 Nac3 Nh5 Raa7 Na6 Qd2 Kg4 Na4 Kg5 Qd3 Kg4 Qe2+ Kg5 Nh1 Kf5+ Ng3+
8/k1rQQq2/bb1B4/qRp3R1/2q3n1/b1N1n1BK/1QB3NR/1N1B2Br b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 g4 Kd7 f4 c5 Kf2 Kc7 Kg2 Kb7 d4 h5 g6 e5 g7 e4 g5 h4 d6 b3 d7 b2 g6 e3 f6 e2 b6 e1B f5 Bc3 f7 Qe8 d8B Rh5 f6 Qb5 d5 Ra3 d6 Qb4 d7 Qa5 Bd3 Rb3 Be3 Na6 Rh2 Ka8 b7+ Ka7 Bc2 Bd2 Bc7 Rc3 d8N Rb3 Ne6 Bd6 f8B Be5 f7 Nf6 g8R Bc1 g7 Ng4 Nf4 Nb4 Bfd6 Nd5 f8Q h3+ Kg3 Bf6 Nge2 Bd8 Ng2 Rb6 Qd4 Rc6 Bg1 Nde3 Qe7 Rh7 Nec3 Rh4 Na3 b1Q Bd1 Qbb4 Rb1 Qc4 Rb5 Rh8 Nab1 Ba3 Qd5 Rh7 Qf5 Rh6 Qfd7 Rh4 Bf4 Rh5 Bcd6 Bb6 Bfe5 Rc7 b8Q+ Ka6 Rf8 Bb7 Rf5 Rh4 Qh8 Ka7 g8B Ba6 Rg5 Rh6 Bh7 Qf7 Rh1 h2 Bhc2 Rf6 Kh3 Rf1 Bf2 Qc4 Beg3 Re1 Rf1 Qf7 Bg1 h1Q+ B1h2 Qg1 Rf2 Qf1 Bg1 Qd3 Qd4 Rf1 Qb4 Qdc4 Qb2 Re1 Nf4 Rf1 Rh2 Re1 Ng2 Rf1 B1f2 Rh1 Bg1
n4B1n/K4N1q/3pRBNQ/k3Rr1q/b1Q2b2/Q1qN2Q1/2B1Qr2/2rR4 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Ke2 g5 Kd3 e5 Kc4 d3 f4 e4 h4 g4 f6 e3 f5 g3 a6 d2 b6 g2 Kb5 e2 c4 e1R h6 Re2 b7 Qe7 Kb6 Kd8 h7 Ra7 f7 Nh6 f6 Re4 h5 Re1 c5 Re6+ c6 Re1 Bd3 Ng4 h6 Ra8 a7 Ne3 Nh3 g1Q Ra5 Re2 Re5 Qg3 Nf2 Qh4 Bc2 Nf5 Na3 Qh2 Nd3 Na6 b8Q Qh4 Nb5 Rf2 Nd6 Qh5 Bb2 Nh4 Qe2 Nc7 Rd1 Ng6 Bc3 Rg8 h8Q Qf3 h7 Bh6 f8N Bf4 Qg7 Nh8 Ng6 Rf8 f7 Qh5 Qh6 Qf6 Ra1 d1Q Re6 Qd2 Rd1 Qe7 Bf6 Qc3 Re5 Rg8 f8B Rg7 Nh4 Rg5 Ng6 Rf5 Nf7+ Ke8 Qb7 d6 Qa6 Bd7 Qa3 Rd8 a8Q Rc8 Qb8 Na8+ Ka7 Rh2 c7 Rf2 Qb1 Ba4 Qbb3 Kd7 Qc4 Rb8 c8R Rb1 Re8 Rc1 Re3 Qe4 Re6 Qeh1 R3e5 Q1h3 Qca2 Kc7 Qg5 Kc6 Qg3 Qh2 Re3 Kb5 Qc4+ Ka5 R3e4 Rb1 R4e5+ Rb5 Ne7 Qg5 Nb2 Ng6 h8Q Qg4 Qh7 Nh8 Qg6 Qh7 Nd3 Qgh5 Nc5 Rb3 Qh6 Rb1 Ng6 Rc1 Nd3+
1R1b1RRR/Nk3n1q/prR2b2/B1q2r1r/1QN2n2/4N2Q/3Q2BB/5Kn1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 d4 Kd7 b4 Kc8 f6 c5 f7 h5 d6 e5 g6 f3 d5 e4 b6 h4 b5 c4 b7+ Kd7 g7 c3 g5 h3 b6 a6 g6 c2 Nc3 e3 Bg2 h2 Kf1 f2 Qd2 Rh3 Nf3 Qc7 Nd1 Kd8 d7 Nf6 g8Q Nc6 g7 Ne5 Qh7 Rh5 g8R Qc5 b8B Ra7 Qb4 Rb7 Bd2 c1N Ra3 Ne2 Rc3 Ng1 Qh6 Nd3 Ne5 Ng4 Nc4 Nge5 Qe6 Nf4 Qh3 Rc7 b7 Rc6 Bd6 Rb6 b8R+ Qc8 Bc5 Kc7 d8N Be7 f8R Nf7 Nc6 Bd8 Na7 Qf5 Rc1 Qe5 Be7 Qd4 Bh4 Qc5 Bg3 Bf6 Rbc8+ Kb7 d6+ Nf3 d7 Bd8 Rg1 h1Q Rh8 Bf6 Rc6 Bd8 Rb1 Qh2 Rh1 Ng1 Rhg8 Bf6 Qg4 Qh4 d8Q Qh3 Qe6 Qhf5 Qdd5 Qh7 Bh2 Bd8 Bc1 Nfe2 Bf4 Re5 Qa3 Qc2 Qa2 Kb8 Qd3 Rb4 Qc3 Qf5 Rhh8 Qh7 Qcb2 Ka8 Bd2 Rh5 Bh2 Rb5 Bd5 Rb8 Kg2 f1R Qh3 Rff5 Qaa3 Nf4+ Kf1 Rb3 Bg2 e2+ Ke1 Rb8 Nde3 Rb5 Kf2 e1B+ Kf1 Bh4 Ba5 Bf6 Qd2 Rb8 Rbb6 Rb7 Qab4 Rb8 Rc7+ Rb7 Rbc6 Rb6 Rc8+ Kb7 Rb8+
2k5/rRR2Nn1/3R2Qr/1N1Qr1nN/2nqn1Q1/BKb1bp1B/3N4/3B3N b - - 0 1 legal: proof: c4 b5 g4 e5 f4 d5 cxd5 g5 a4 Bf5 axb5 Bg6 h3 f5 Ra3 exf4 Ra1 Bh5 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Kf7 Qc2 Ke7 Qd1 Ke8 e4 Kd7 b4 h5 d4 c5 Kd2 a5 Kc3 a4 g5 a3 d6 c4 f6 a2 g6 h4 e5 h3 b6 h2 g7 g2 b5 Rh4 e6+ Kc8 e7 Ra5 e8Q Rh5 f7 Rd5 d7+ Kb7 Ne2 g1B Bh3 Ra8 Ba3 Re5 d5 Qe7 d8Q Nf6 g8B Bg7 f8N Bc5 d6 Ra7 d7 Rd5 Nh7 Rh5 Nd2 Qf7 Ng3 Na6 Qg4 f3 Rhd1 Qd5 Qeg6 Re5 Nh1 Nh5 Nf6 Qd4+ Kc2 c3 Kb3 c2 Bh7 Nf4 Nh5 c1R Qdg5 Kb8 d8N Nc7 b7 Ne8 Nf7 Ne6 Rb1 Kc7 b8N Kc8 b6 Rc4 Na6 a1N+ Ka2 Rc3 Nc7 Nb3 Nb5 Na5 Q5f5 Nc4 b7+ Kb8 Qfe4 Ng5 Qd5 Bf6 Rb4 Ng7 Rb3 Rce3 Rd3 Re6 Kb3 R3e5 Nc3 Kc7 b8R Bb6 Rb7+ Kc8 Nb5 Bc5 Nf2 h1N Bg8 Ng3 Nh1 N3e4 Qd6 Be7 Bh7 Qg1 Qf6 Be3 Nf1 Bc5 Rd4 Nf2 Bc2 Nfe4 R1d2 Qf2 Bd1 Qe3+ R2d3 Bd8 Nd2 Ba5 Qh6 Bc3 Qh7 Rf5 Qe5 Rh6 Rdd7 Bb6 R3d6 Bbd4 Qd5 Re5 Qhf5 Qd3 Qfe6 Be3 Qg6 Qd4 Rdc7#
1Q1N3q/R1Kb1bq1/R1p3NR/8/kq2B1n1/2QQ3b/bb4NB/NB3N1r b - - 0 1 illegal: No possible last move, all moves rejected
QRRB1Qb1/1N3nr1/R1N1N2r/1b5B/3Nq3/1r2p1B1/k2n1pb1/3KQ1N1 b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 b5 h4 gxh4 a4 e4 axb5 Bf5 c4 Bg4 d6 Nf6 c5 Ng8 d5 Bg7 c6 Be5 fxe5 Kf8 Ra5 Bc8 Ra1 Qd7 cxd7 Ba6 Ra2 Bb7 Ra1 Bc8 d8N f5 g4 c5 b4 a5 b6 h5 d7 Ke7 b7 h3 b5 e3 e6 Kd6 b6 f4 g5 f3 g6 f2+ Ke2 c4 e7 Kc5 e8Q Kb4 g7 h4 d6 c3 Bd2 h2 Qc1 Kb3 Ne6 h3 d8Q c2 d7 a4 Bg2 a3 Ba5 a2 Bb4 Ra3 Ba5 Nc6 b8R Nf6 g8N Ne4 b7 Nd2 Qf8 Rh6 Be4 Ne5 Bg6 Nf7 Qe1 c1R Ne7 Rc7 Bh5 Kb2 Bb6 Rb3 Nc3 Ka3 Rc1 a1Q Kd1 Qb1 Nce2 Ka2 Nc6 Qd3 Qde8 Qe4 d8N Re7 N2d4 Bd7 Na5 Bb5 Rcc8 Rc7 N8c6 Rd7 Bd8 Rc7 Ngf3 Re7 Rg1 h1B Rg6 h2 Ng1 Bg2 Qd7 Rd3 Na7 Bc6 Ng7 Nh8 Qd5+ Rb3 Re6 Bd7 Ra6 Bb5 Nge6 Rg7 Ra8 Nb1 b8B Nf7 Bg3 Nd2 Rab8 Bh3 Qb7 Bf5 Nh3 h1B N7c6 Bh7 Ng1 Bg8 Qa8 Bg2 Nb7+
B2b1n2/1N2r1r1/k1Q1R1Bp/3N2Q1/B2R4/2b1Kn1R/prqRN3/1Q1b2R1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 h4 g5 hxg5 c5 b4 Bd7 b6 Nc6 b5 Bc8 Ba3 Nb8 Bb4 cxb4 Ke2 Kd7 f4 e5 d4 a5 g4 e4 f6 h6 g6 b3 d6 a4 b7 a3 g5 a2 f7 b2 g7 e3 f5 Qf6 g6 Qh4 b6 Kc6 d7 Kb5 d8Q Nc6 b8R Rh7 b7 Qf6 d5 Qe5 f6 Rh8 d6 Bf5 d7 Qc7 Na3+ Kb6 Qc1 b1R Rh3 Ne5 Nc4+ Kb5 Bg2 Be6 Nb6 Ka6 Qc6 Bc5 f8R Bd6 f7 Bb4 Qg5 Ka5 d8N Ba3 Re8 Bc5 f8R Bc8 Rf4 Ra6 Rd4 Nf6 g8B Nf3 g7 Bg4 Re6 Nh7 Bf7 Re8 g8B Ra7 Bg6 Ka6 Kd3 e2 Ke3 e1B Ne2 Bc3 B8f7 Rh1 Rg1 Re7 Be8 Rh2 Rc8 Bh5 b8Q Nf8 Nb7 B5b4 Rcd8 Ba5 Rd2 Qc8 R8d4 Rg7 Nd8 Rae7 Nb7 Bg4 Qe4 Qc4 Ba4 Qb3 Qb1 Qc2 Bh1 Ne1 Bhc6 Nf3 Qc8 Rf2 Nd5 Bc7 Nb6 Bd8 Bd5 Bh5 Qc6 Rf1 Qb4 Ne1 Nc5+ Ka7 Nf4 Rd7 Qd6 Rde7 Ba8 Bf3 Nb7 Ka6 Qc6 Be2 Qf6 Nf3 Qg5 Rb1 Qb2 Bd1 Ne2 Nh2 Qa1 Rb2 Qb1 Nf3 Nd5+
Q1Q1Q1Rn/1KR1b3/nB1r3p/1NQ2b2/1kq1p1B1/R1r3B1/7r/2Nb1Q1N b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 e6 f4 c6 g4 b3 g6 h6 g7 b2 f6 Qc7 f5 Ne7 g8R Ra3 b6 Ra6 b7 Ra3 g5 Rh7 f7 Qa5 f6 Qa6 g6 Rb3 g7 Qe2 Ra3 Rh8 Bh3 Bd7 Qf1 Qf3 Nc3 b1B Nge2 Bc2 Bg4 Be8 Nb5+ Kd7 Kc5 Bg6 Kb6 c5 d4 c4 d6 c3 d5 c2 Be3 Nbc6 b8B c1R Kb7 Rbc3 Bb6 Rb1 Nc1 Be4 Rh2 Qf4 Rc2 Ng6 B8c7 Be7 f8Q Rd3 f7 Rb2 Bb8 Nb4 Rc7+ Kd8 d7 e5 Ne2 Rc3 Nc1 Bh4 Qd6 Na6 f8Q Be7 Qc5 Rh2 Qf5 Bf3 Qc2 Qc4 Qa4 Nb4 Qa8 e4 Rf8 Rh1 g8N Na6 Qc6 Qb3 Nf6 Rh2 Nh5 Bh4 Rc8+ Ke7 Ng3 Bd1 Nh1 Qc4 Bg3 Bf7 Rfd8 Be6 Qc7 Bf5 d6+ Ke6 Rf8 Kd5 d8Q Rh7 d7 Nh8 Rg8 Rf7 Qe8 Rf6 d8Q+ Rd6 Bbf2 Be7 Qb6 Qd3 Rc7 Qe2 Bc5 Kc4 Qdc8 Qd3 Bg1+ Kb4 Qbc6 Qd5 Bb6 Qc4 Qc5+
b1Knn2N/k1n1RN2/Nprp1Q1R/2b1N3/6B1/3B2Qq/1NQ5/B2Rr2b b - - 0 1 legal: proof: d4 c5 dxc5 Nh6 b4 Qa5 e4 Qd8 b5 Ng8 b6 axb6 a4 f5 exf5 Nc6 a5 Nb8 h4 g5 hxg5 Ra7 a6 Ra8 axb7 Ra2 Bb5 Ra5 Bf1 Ra8 Kd2 h5 Ke3 e5 Ke4 d6 Kd5 Kd7 f4 Kc7 g4 e4 c4 h4 f6 e3 c6 h3 c5 e2 f5 e1N g6 h2 g7 Ra5 g5 Qd7 g6 Rh4 f7 Be7 f8N Ra3 f6 Qe8 f7 Nc2 Nf3 Bg5 Bb2 Be7 Nbd2 Rh8 Bd3 Bf5 Ne5 Bh4 Ndc4 Nd4 Qc2 Bd8 Rad1 Ra2 Ba1 Ne2 Nb2 Nd7 b8N Bf6 Na6+ Kc8 c7 Kb7 c8B+ Ka7 Kc6 Nf4 Kc7 Be4 c6 Nb8 Bg4 Qe6 Rhe1 Qb3 Kc8 h1B c7 Ne6 Re2 Ra5 Rh2 Bg5 Rh6 Nf6 g8N Nd8 g7 Rc5 Nfg6 Ba8 f8Q Ne8 Qf6 Rh7 Nh8 Be3 Rh4 Rc4 Nh6 Rc6 g8Q Re7 N6f7 Bc5 Rh6 Re6 Nd7 Re1 Nde5 Nd7 Qgg5 Nf8 Qgf4 Nfe6 Qg3 Rg1 Kd7 Re1 c8R N6c7 Rb8 Nde6 Rd8 Qc3 Kc8 Qb3 Rd7 Nd8 Re7 Qa3 Bg6 Qf3 Be4 Qg2 Bg6 Qh3 Bd3
2QB2nq/1r5p/rk1Q4/1N1R2NB/n2Rb3/1NN3K1/1p1QNB2/1R2br1r b - - 0 1 illegal: No possible last move
B1nRBBQn/6K1/k2BN3/q2bN3/QR1N3q/3b1r1p/1R1p2B1/1Qq4n b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 f4 cxd4 h4 g4 e4 Bh6 e5 Ba6 f6 Bc8 f5 Bg5 hxg5 Qc7 Rh3 Kd8 Rh4 Ra6 f7 Rf6 exf6 Qb6 Kd2 Kc7 Rh1 Kd6 Ke1 Qd8 Kd2 Kc7 Kd3 Kb7 Ke4 d5+ Ke5 h5 f8B d3 c4 h4 b4 e6 f7 d4 f6 d2 b6 g3 c5 h3 g6 d3 c6+ Ka6 b7 g2 c7 a4 g7 a3 b5+ Kb6 Rh2 a2 Bca3 Nh6 g8B Qd7 Ne2 g1Q Bad6 Qe7 Qa4 d1B Nd2 Bb3 Nd4 Bd5 Rd1 a1Q Bg2 Qa2 Rb1 Qc1 N2f3 Qad2 Rb3 Qa5 Rb4 Ka7 b6+ Ka6 Bh7 Bd7 c8B Bb5 Be4 d2 Bd7 Bf1 Be8 Bd3 Rh1 Rg8 Rd1 Rg3 Rb2 Qc8 Rdb1 Qc1 Rb4 Qd8 R1b2 Nd7+ Kf4 Qe7 Ne5 Rf3+ Kg5 Qd8 Kg6 Qe7 Ng4 e5 b8R Qd8 b7 Nb6 Kg7 Nc8 Bh7 e4 Ne5 e3 Be4 e2 Ra8+ Na7 Rb8 Qe7 Rd8 e1N b8Q Nc8 Bh1 Be6 Ba8 Ba2 Bg2 Bd5 Nc4 Qe4 Ne5 Qf4 Qc7 Qh4 Qcc2 Ng4 Qb1 Nf2 Bfe7 Nh1 f8N Re3 f7 Nf3 Nfe6 Ng5 f8Q Nf7 Qh8 Rf3 Qg8 Nh8 Bf8
4n2n/Bq2p2B/2Q1BRQR/1Nr3p1/b2NN1p1/3k4/QR1b4/K1nRb2R b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 f5 e4 d5 exf5 b5 axb5 a4 cxd5 Ra5 bxa5 Rh4 Bh3 Rh6 Bf1 Rh8 h4 Kd7 f4 Kd6 d4 g5 Kd2 c5 Kc3 c4 Kb2 Qc7 h5 Qd8 h6 Qc7 f6 Bd7 f5 Bc8 h7 Nh6 a6 Qa5 b6 Qe1 b7 Qe6 a7 Qd7 a8B Qc6 f7 Rg8 h8R Qd7 f6 Qc7 Ne2 Rg7 Qd2 Na6 b8R Qd7 Nbc3 Qe6 Ng3 Qe3 Nb5+ Kd7 d6 Ke6 d7 Qf3 d8Q Qd1 d5+ Ke5 d6 Rg8 d7 Bg7 f8R Nf7 Bd3 Nc7 Bh7 Qf3 Ne4 Ne8 Bd5 a3+ Ka2 c3 Qb6 c2 d8Q Bf5 Qc8 Bd7 Be6 Bc6 Qdf2 Bd7 Be3 c1N+ Kb1 a2+ Kb2 Qg2 Qcc6 Qf3 Qa6 Qg2 Ba7 Qf3 Rb1 a1B+ Kc2 Bd4 Qg2 Bf2 Kb2 Kf4 Ka1 Be1 Qga2 Qb3 Rb6 Ke3 Rh6 Kd3 Rb7 Ne5 f7 Ng6+ Rb2 Bgc3 Rb6 Nc7 Rd8 Ne8 f8N Qb4 Bf5 Bcd2 Ne6 Rf8 Ned4 Rf7 Be6 Rf5 Rh1 Rc5 Rf8 Nh8 Rff1 Nc7 Rdf8 Ne8 R8f6 Bg3 Rd1 Be1 Rfh6 Qb3 Bf7 Qb4 Qg6 Qb3 Rf6 Qd5 Be6 Qb7 Nbc3+ Bb5 Qc6 Ba4 Ncb5
4B1RR/2q1br2/B2QN2N/B1pn1npN/1Q2r3/N1q2N2/Q5p1/RK2k2n b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 f5 e4 Na6 exf5 Nb8 g4 hxg4 b3 a5 b6 a4 Ba6 a3 Be2 Bd7 Bf1 Ba4 bxa4 Qc8 Qe2 Qd7 Qd1 Qd8 d4 Kf7 Kd2 Kf6 Kc2 e5 h4 c5 f4 g5 h5 e4 a5 e3 h6 a2 a6 e2 b7 e1Q h7 g3 a7 g2 d6 Qe5 d5 Nc6 b8Q Qde7 d7 Na5 d8Q Nb7 d6 Qe1 d7 Bh6 Bd2 Qe6 Qe2 Qa6 Na3 Bf8 Nf3 Bg7 Ba5 Nd6 Qb4 Rc8 a8B Bf8 Bc6 Rc7 Qf2 Qb7 Ba6 Nh6 Ba4 Rg8 h8N Ne4 Nf7 Ng3 Qb8 Qe8 d8N Qe1 Be8 Be7 Ne6 Rg6 Rh4 Nh1 Ng7 Rd7 Kb2 Qc7 Qc2 Qc3+ Kc1 Ng4 Rh8 Ne3 Nh6 Rd4 Rg8 Nd5 Qd8 Re4 Qd6+ Re6 Rb1 a1N Rh8 Qd4 Qa2 Nc2 Ra1 Nce3 Kb1 Qc3 Qd7 Re4 Qc6+ Bd6 Nh5+ Ke7 f6+ Ke6 f7 Rf6 f8R Nf5 Rfg8 Rf7 Qcb7 Be7 Qb8 Nfg3 f5+ Kd6 f6 Nf5 Nd4 Ke5 Q8b6 Rf4 Qb8 Ke4 Nf3+ Ke3 Q8b6 Re4 Qd6 Rg7 f7 Rh7 f8N Rf7 Nd2 Kf2 Ne6 Ke1 Nf3+
1k6/RRp1r3/Q3q1Q1/2pbRBN1/1R1N2RQ/1NK3B1/1p2p1B1/q1br3b b - - 0 1 illegal: No possible last move, all moves rejected
3BNBn1/K3R1b1/5qqr/3BQR1q/b1RQ2R1/q2R3n/kNq1N1r1/Q6n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 a5 f4 a4 b4 c6 b6 h3 b5 a3 g5 e6 f6 h4 b7 h2 f5 h3 g6 a2 b6 Qe8 f7 Rh7 g7 Ra6 f6 Qe7 Bc4 Rh5 Na3 Rh8 Ne2 Rh5 Re1 Nd7 b8R h1N b7 h2 d3 Ne5 Bg5 Bd7 Rc8 Qd8 b8Q+ Qc7 Rg1 Rh6 Rg4 Ng6 Rb1 Ra5 Rb7 Nf4 Qa1 Nh3 Bb3 e5+ Kc4 c5 d4 Ne7 g8N Bg7 f8B e4 f7 e3 Nf6 Ba4 Bh4 N1f2 Ra7 h1Q Rb7 Qb1 Ra7 Qg6 Ne8+ Kd7 d6 Ke6 d7 Nh1 d8Q Ng8 Bf6 Qe5 B6e7 Qeh5 Qf4 Ra6 Qa5 Rd6 Bd8 Rd5 Q5c3 Rf5 Qh2 Rf2 Rd7 Rg2 d5+ Kf5 d6 Ke6 Qd4 Qf6 Kc3+ c4 Kb4 Qhg6 Kc5 Qh5+ Kb6 Qfg6 Qac3 a1Q Ka7 Qab1 Qg3 Qbc2 Qa1 Qf6 Qdc3 Kd5 Re7 Qcg6 d7 Qc2 Ng1 e2 Qh4 e1Q Ne2 Qef1 Qcb2 Qc6 Qg3 Kc5 Qge5+ Kb4 Qbd4 Qff6 Ba2 Qd5 Rc5 Qhg6 Rc7 Ka5 Bb3 c3 Nc4+ Kb4 Ba2 Qdf3 Nb2+ Ka3 Rc4 Q3f5 Bb6 Qfh5 d8R Qcd3 Rd5 c2 Bd8 c1Q Rcc5 Qcd1 Qde3 Qc3 Rd3 Qc1 Q3d4 Qfh4 Rc8 Bh8 Bg7 Qc2 f8R Q3b3 Rff4 Qhf6 Bf8 Bg7 Rf1 Qbc3 Rf5 Q3b3 Qag1 Qbc3 Bd5 Q3b3 Rcc3 Ka2 Rc4 Qa3 Qa1+
1Q4qb/BqrR1rQ1/3qk2b/4NnBK/R1Q1rN2/Q2RnB1Q/b6r/3N4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Kg4 a5 f4 c5 d4 a4 b4 h3 b6 c4 f6 a3 b7 a2 d6 h2 f5 e4 b5 c3 b6 h6 f7 e3 d5 e2 f6 e1Q Nh3 c2 Qd3 Qa5 Kh5 Na6 b8B Nc5 g4 Ne7 g5 Qb4 b7 Rh7 g6 Qda5 g7 Qf4 g8Q Qe5+ Bg5 c1R Ba7 Ne4 b8Q Qd8 Nc3 Nf2 Nf4 Nd1 Be2 Ne3 Rd1 N7f5 Bf3 Bg7 Qh8 Qg8 f8Q Qe7 f7 h1R+ Bh4 Ba6 Qc4 Rh2 Rd3 Rcc2 Nd1 Rcf2 Rb1 a1B Rb4 Qf6 Ra4 Qd8 Kg6 h5 Bg5 Bh6+ Qfg7 h4 Kh5 h3 f8Q+ Qe7 Qgb2 Re2 Qa3 Rf7 Qfg7 Qf6 Qbb3 Rc8 Qb8 Rc7 Qhh7 Bc8 Qhh8 Kd8 d7 Qe7 Qhh7 Bf6 Qhh8 Qd6 Qhh7 Ke7 d8N Be6 Nc6+ Kd7 Qhh8 Ng4 Qhh7 Re4 Qhh8 Nge3 Qhh7 Qb4 d6 Qb7 Nd5 Ba1 Qgg6 Bh8 Qgg7 Qa6 Ndb4 Bd5 Ne5+ Ke6 d7 Qb6 d8R Qd6 Qc5 Ba2 Rd7 Rb2 Nd5 h2 Qc4 h1Q+ Kg6 Nh4+ Kh5 Rh2 Qa8 Qg2 Qb8 Nhf5+ Kg6 Qb2 Bf6 Bf4 Qh3 Qb1 Kh5 Bh6 Bg5 Qb7 Nf4#
3qrnBk/1RbNQB1Q/2Nbn2q/r2Q2R1/1Rb2q1q/R1B1r3/2R3K1/7N b - - 0 1 illegal: No possible last move
RR4QB/1R3r1B/1Nq1b1KQ/1bBq1B2/8/q1N1Br2/3nQ1N1/knnqb3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 b6 h3 d7 h4 g6 c4 f6 h2 Kf5 e4 b7 a4 d5 a3 d6 h3 f7 c3 g7 e3 Nf3 a2 Ne1 c2 Kg6 Kb3 f5 e2 f6 Qe8 d8B Nd7 b8R+ Nb6 d7 Rh7 Nc3 Bb4 Be3 Nc4 Ng2 e1Q Bd3 Ra3 Qe2 c1N Bf5 Nd2 Rb1 Qe6 f8Q Qd5 f7 a1Q Bf6 Qd1 d8Q Be6 Qfd6 Qa2 f8B Qa1 Be5 Nf6 g8B Nfe4 Bh8 Rf7 Bh7 Qa2 Rf1 h1B Qda6 h2 Bfc5 Qa1 Qg8 Qa2 Ra1 Nb1 Qd6 Qc6 Qf4 Ned2 Qh6 Qd5 Rf4 Qc6 Re4 Kc2 b3 Ba5 b4 Kb2 b5 Rb3 b6 Qa3 b7 Bb4 Ne1 Bg2 Rd4 h1Q Rd7 Bf1 Rc7 Qhd5 Ng2 Qaa6 Ra4 Ra3 Ra5 Ka1 Re7 Qad3 Raa8 Ba5 Rf8 Bb4 b8N Qda6 Rb7 Qa7 Qf3 Bb5 Qe2 Rb3 Nd7 Qa3 Rfb8 Ba5 Na4+ Rc3 Ndb6 Bb4 Nb2 Rd3 N2a4+ Bc3 Bf2 Rf3 Bfe3 Bd4 Nc3 Be5 Qf1 Bg3 Qd3 Be1 Qe2
b3R3/1NkNrRq1/1qQ1B2B/4NqNR/1b1r2r1/2n2b2/r2nQK2/B1N3Q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 g4 e5 g5 c5 b6 a4 b7 c4 b5 c3 f6 c2 f5 e4 f7 h3 f6 e3 b6 e2 d6 h2 g6 a3 d5 h4 g7 a2 Nh3 Qe8 Nc3 Rh6 Kf2 e1R Qe2 Rh7 Ng5 h3 Bb2 Na6 b8R c1Q b7 Ne7 g8Q Kd8 d7 Kc7 d8N Qb5 Nc6 Nc5 Ne5 Bg4 Re8 Nb3 b8N Bf3 Nbd7 Rd1 Qg7 Qc2 d6+ Kb7 Bg2 Rd4 Raf1 a1Q Na2 Qb6 Nc1 Nd5 Qh6 Be7 f8B Qf5 f7 Nc3 Qg6 Ra6 Bh6 Nd2 f8Q Ra2 Qfg8 Bf8 Q8e6 Re7 Qeg8 Qab1 Ba1 Q1b2 Rhg1 h1R Q8g7 h2 Bh3 Qe4 Be6 Qf5 Rg3 Rg1 Rh3 h1B Rh5 Qf7 Qc2 Rgg4 Qa4 Qf5 Qc6+ Ka7 Nc5 Bhg2 d7 Bh1 d8N Kb8 Qd5 Kc7 Ndb7 Rf7 Ncd7 Bb4 Qde4 Re7 Qg6 Rh4 Qg4 Bhg2 Qg3 Rhg4 Qh2 Bh1 Qg1 Be4+ Ke3 Rd5+ Nbc5 Qf8 Qf7 Qg7 Qff3 Qb1 Qfg2 Rd4 Rf7 Ba8 Nb7 Qf5 Qe4 Bf3 Kf2 Nf1 Qd5 Nd2 Qc6+
1N1b2bk/2b3nr/3N4/2BBQ3/2BNr3/2R1Q1nq/1RQnrR2/K1Qn1Q1b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kg7 d4 c5 Kd2 h5 Kc3 e5 Kb2 a5 g4 e4 d6 h3 b6 a4 d7 h2 b7 h4 d5 e3 b5 c4 d6 e2 g5 e1R b6 h3 g6 Rh6 f6+ Kh8 f7 Na6 b8N Rh4 g7+ Kh7 b7 Nb4 f5 Ree4 f6 Nh6 g8B+ Kh8 Qc2 Be7 f8Q Nd5 f7 Nf5 Nf3 Nc3 Be3 Ng7 Nd4 Rh7 Ra2 a3+ Ka1 Nd1 Rb2 c3 Bc4 a2 Nd2 Ra4 Bf2 Re2 Ne4 Bh4 Rg1 h1N Rg3 h2 Rf3 Qg5 d8Q Ng3 d7 h1B Qc7 Qf5 d8Q Be6 Qde7 Qh3 Nd6 Rb4 Qc1 c2 Rc3 Bed5 Qee3 Bd8 Qb1 c1B Qc2 Be6 Qc5 Ra4 Qce5 Bc7 Qc8 Rb4 f8Q Bf7 Bg1 Bfd5 Qf1 Ra4 Q3e4 Bg5 Qe3 Bgd8 Qcc1 Bf7 Qcf5 Rb4 Qfc2 Bb6 Nb3 Be7 Bd3 Bc6 Q3g5 Bh5 Q2d2 Ba4 Rbc2 Qg2 Rc6 Bed8 Na6 Be8 b8R Re1 R6c4 Qh3 Bc5 Bed7 Qge3 Bdc6 Rf4 Bab5 Rf2 Re2 Bf7 Rg4 Nd4 Bh1 Rb2 Be8 Bdc4 Re4 Qdc2 Bbc7 Bfd5 Bf7 R8b3 Be6 Nb8 Bg8 Rb1 Nc3 Kb2 a1N Ra3 Nd1+ Ka2 Nb3 Rb2 Nd2 Ka1 Rh5 Rd3 Rh7 Rc3
1b2N3/1qB2BK1/QR5N/3rr1nQ/Q1Bq1NqR/1B1B1k2/n6q/R4brr b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 h5 g4 a5 b4 f6 g6 f3 g7 c4 b6 f2 b5 c3 b7 a4 b6 a3 g5 c2 g6 h4 Bf4+ Ke7 d6+ Ke6 d5+ Kd7 Kf5 c1R e4 a2 e5 h3 Qa4+ Nc6 b8R h2 b7 Qb6 Bd3 f1Q Nd2 Qe2 Ne4 Re1 Nh3 Ra5 Bg3 Rb5 Nf4 Nb4 Qa6 Be7 Qa4 Bd8 Qa6 Bc7 e6+ Kd8 d7 Ke7 d8N Ra5 Rc1 a1Q Nd6 Na2 Ne8 Qad4 Nf7 Qg2 Nh6 Re5+ Kg4 f5+ Kh5 Qd6 Ra1 Nf6+ Kg5 Rh7 g8B Ne4+ Kh5 Bd7 g7 Bb5 Kg6 Ng5 Bf7 Qe2 g8B Qg4 Bc4 Qd7 Bb3 Bf1 d6+ Kf8 Kf6 Rad5 Bc4 Qc8 d7 Rh8 Kg6 Ke7 Kg7 Bd6 Ra8 Qc7 b8Q Qb7 Qba7 Bc7 Rc8 Bb8 Rc6 Rh7+ Kg6 Rh8 Rb6 Rh7 Qa4 Rh8 Q7a6 Rh7 Rg1 h1Q Bh2 Rh8 Kg7 Qhg2 Bg3 Qgb2 Rh1 Qh2 Nd3 f4 Bb3 f3 Nf4 Qe2 Rh4 Qh2 Bh7 f2 Bd3 Bh3 Bdc4 f1R Bg6 Rc1 Bgd3 Rh7+ Kg6 Rg1 d8Q+ Kf8 Qdd7 Bf1 Qdb5 Ke7 Qba5 Rh8 Kg7 Rf5+ Nf6 Qh1 Rh3 Rb5 Nf7 Rh5 Ne2 Nf3+ Ng5 Rbc5 Bc7 Qhg2 Nf4 Qc2 Rg3 Rhh1 Rh3 Qh2 Rh4 Rb5 Kh7 Rfc5 Nf7 Rh5+ Nh6 Rbf5 Ne8 Rhg5 Ng7 Kf6 Q5b5 Rh5 Qe8 Rd5 Kh8 Rhe5 Qh5 Ng5 e7+ Ne6 Bd6 Ng5 e8B Re7 Bf7 Re4 Be7+ Ke5 Ne8 Re2 Kg7 Re1 Be2 Ke4+ Bf6 Ke3 Bed3 Kf3 Be5 Re3 Rf6 Re1 Bc7 Ree5 Rb6
1r1nQn1K/B1n3r1/q1R5/2rQ1R2/N2Bb1B1/RRb2R2/1Qqpq3/N2kN3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 a5 f4 g5 c4 d6 b4 d3 b6 d2 h6 a4 b5 g4 c5 a3 c6 a2 b7 g3 h5 g2 c7 Be7 h7 Nc6 b8B Na7 h6 Qd7 b6 Nc6 b7 Na5 Nf3 g1R Ne1 Nc6 Ba7 Rg7 b8R Nd8 Bb2 Qa4+ Bbd4 Qc2+ Kd5 Bf8 Rb3 Rb8 Bh3 Ba6 c8R Bd3 Rc6 Rc8 Qf3 d1N Nc3 Rb8 Rf1 Be4+ Kc4 Ne7 Bg4 Rhg8 h8Q Ng6 h7 Be7 Qh1 Nf8 Rf3 Rb5 Rab1 a1Q Ra3 Rb8 Rbb3 Rc8 Kb4 Qaa2 Na4 Nc3 Kc4 Nd5+ Nc3 Kf7 f6 Kg6 f7 Nc7 f5+ Kg5 f6 Rb8 Qg2 Kh4 Rf5 Rg5 Qd2 R8g7 Qg8 Kg3 h8Q Bg2 Qc1 e4 Qb2 e3 Qh5 e2 Qhh8 Nd7 f8N Be4 f7 Bf6 Ne6 Nf8 Qh5 d5+ Kc5 Nh7 Kd6 Nf8 Nc5 Be5+ Ke7 Qa1 Bg1 d4 N3a4+ d3 Qg6 Bc3 Bd4 d2 Kf6 Nfe6 Qe8 Nf8 Qh5 Qa2 Rb5 Qc4 Nb3 Q4d3 Rbb6 Qa6 Qh1 Rh5 Na1 Rhg5 Rbb3 Rh5 Rf2 Ra5 Rf5 Rc5 Nf3 e1Q Qh5 Nfe6 f8R Qee2 Qhf7 Kg2 Qg8 Kf1 Ne1+ Qf2 Rf3 Ke2 Qgf7 Qg2 Qfd7 Kd1 Qd5 Qge2 Rf5 Re7 Rf7 Nf8 Kg7 Rd7 Kh8 Re7 R7f6 Rf7 Rf3 Rg7 R6f5
6BR/1R2Qb2/1bnN1Rq1/q6N/pk2r2N/BN1KbnB1/1QQN1r1r/n7 b - - 0 1 illegal: No possible last move
R3NB1n/p2r2n1/rRq1N1qQ/1B1kq2b/R1r1b1B1/N2R1Q2/3K4/3R1Qb1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 f4 c5 d4 e5 g5 h5 b6 c4 b5 c3 g6 h3 g7 h4 f6 e4 b7 c2 f5 h2 b6 h3 f7 e3 f6 e2 Bh6 c1R Ra4 Rh7 Kd2 Nc6 b8R Bb7 Na3 Qc8 Nf3 Qg4 Ne5 Rh8 Nec4+ Kd7 d6 Ke6 d7 Rc3 d8N+ Kd5 Nd6 Nce7 Ne6 Rc4 Ne8 Qg6 Qb3 Bc8 b7 Nf5 Qe3 Bd6 f8Q Nge7 g8B Bc5 f7 Ng7 Rg1 h1B Qf3+ Qe4 Bh7 h2 Bf5 Ng6 Bg4 Rh7 Rg3 Nh8 Rh3 Bd7 Rc8 Bg2 b8R h1Q Rb6 Rb8 Rd8 Rb7 Ra8 Bb5 Rg3 Qh5 Rh3 Rd7 Rh1 Qg6 Rh3 Nf5 Qg7 Rd6 f8Q Bh1 Qgf6 Rhd7 Q8f7 Ba6 Bf8 Ng7 Qh4 Bb7 Qh6 Bc8 Qc3 Qe5 Rd3 Be4 Qa1 Rc6 Qf3 Qc7 Qd1 Rcd6 Qb1 Qc6 Re3 Rd8 Bh5 Qd7 Rb7 Rb4 Ke1 Ra6 Rb6 Qc6 Ng5 Bg4 Ne6 Rd6 Rc3 Rd8 Rc1 Rd6 Kd2 Rd8 Nc2 Kc4 d5 Bg1 d6 Bef5 d7 Bd3 Nc5 Bdf5 Na3+ Kd4 Qbd3+ Ke5 Rd1 e1Q+ Kc1 Qg3 Kd2 Be4 Ne6 Qh2+ Qde2 Qg3 Qeg2 Qh2 Bb5 Rc4 Qf1 Bgf3 Bg4 Be2 Bh3 Bh5 Bg4 Qg3 Nc5 Kd4 Qgf3 Qe5 Nf6 Rb8 Ne8 Rb7 d8R+ Qed5 Rd6 Rd7 Ne6+ Ke5+ Ke2 Qdc5 R6d3 Q5d6 Nd4 Kd5 Kd2 Qe5 Ne6+
1B2k3/3R1R2/b1QR2QK/2rQ1B2/1b4p1/2N1nnrb/1nbN1q1b/1BNB2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kf3 f5 c4 d5 h4 a5 b4 f4 e4 d3 e6 d2 Kg4 f3 h6 f2 Kh5 d4 e5 g4 e7 a4 c5 a3 c6 d3 b6 a2 c7 Ra3 b7 Qd7 b5 Ra6 b6 Ra7 h7 Nh6 Nc3 Qc6 Nf3 Qe6 Be2 Qd7 Rf1 Rg8 h8R Ra4 Rh7 Na6 b8B Qd4 b7 Bf5 c8B Be4 Bf5 Qb4 Rb1 Qc5 Rb6 a1B Rd6 Rc4 Ba3 Qd5 Bc5 Nc7 Qc2 d1B Nd2 Bg7 Qb3 Bc2 Bd1 Rf8 Be3 Kf7 e8B+ Ke7 e6 Qc5 Bf7 Be5 B7g6+ Nf7 Qa4 Re8 Qc6 Bh2 Rg7 Nd5 Rh7 Kf8 e7+ Kg8 Bd4 Ne5 Kh6 Nf3 h5 Ne3 Rf7 Rf8 e8Q Bb2 Rh7 Ba3 Rhd7 Bb4 Qe6+ Rf7 Qed5 Kf8 Be6 Nh4 Bf3 Neg2 Kg5 Ke8 h6 Bb3 h7 Kf8 h8N Ke8 Kh6 Ba3 Ndb1 d2 Bc7 d1N Nd2 Bd3 Bh7 Qb6 Ng6 Rf8 Be2 Rf3 Ne5 Rg3 Bf3 Be2 Nd3 Ba4 Be3 Qd4 Nc1 Rc5 Bhe4 Ba6 b8Q+ Bc8 Qb4 Ba6 Qb1 Nb2 Bb8 Bb4 Bd1 Bb3 Re1 f1B Bg1 Ba4 Re2 Qf2 Re3 Bb3 Rf3 Ne3 Rff7 Nf3 Bg6 Bh3 Qbf5 Ba3 Qg5 Bb4 Bb1 Ba4 Bef5 Bc2 Qg6
1B5r/nnb3Q1/nRB1bN1R/RrQ2r2/qbB4p/1N5k/2K2QRr/R1N5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 g4 c5 d6 h3 b6 c4 b7 c3+ Kc2 h2 d5 a4 f6 a3 f5 e4 b5 a2 f7 e3 g5 e2 f6 e1R b6 Ra4 g6 Ra8 g7 Nc6 b8R Ra6 b7 Rh6 Bg2 Re6 Nd2 Rb6 Qe2 Rb5 Nb3 Qa5 Qf2 Rh8 Bf4 Nd8 Ne2 Ne7 g8B Nec6 Nec1 Na7 Be5 Be7 f8Q Qa4 f7 Rf6 Qg7 Rf5 f8Q h4 Rg1 h1R Qc5 Rg5 Qff2 Rf5 Ra8 Rh2 b8N+ Ke8 Bh1 Be6 Rg2 Nb7 d7+ Kd8 Bf7 Bd6 Bg3 Ke7 d8R Qf4 Qce3 Qa4 Nd7 Be5 Rdb8 Bc7 Ne5 Kd6 Ng4+ Ke7 d6+ Kd7 Rb1 a1B Qc5 Bb2 Be5 Ba3 Ra1 Bb4 Bf4 Nc8 Ra5 Na7 Kd3 c2 Be5 Nd8 Rb6 Nb7 Bg8+ Bf7 Nf6+ Ke6 Na2 c1N+ Kc2 Nd3 Nc1 Rf4 d7+ Kf5 d8R Be6 Rdd6 Rf3 Qcd4 Ndc5 Bf7 Na6 Qc5 Bc8 Bc4 Be6 Rg6 Rf4 Bc6 Rf3 Rh6 Rf4 Qh7+ Kg5 Rd2 Rf5 Re2 Bd8 Bb8 Bc7 Ne8 Kg4 Nf6+ Kh3 Qg7 Bc8 Re4 Bd7 Rg4 Be6 Rg2
4brBk/1rRq1Nr1/1q1b2B1/Qn2Rr2/NB4rR/Q6N/3B2Bp/1KQn4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 Kd2 Kg7 Kc2 h5 b4 a5 g4 c5 e5 f3 g6 f2 e6 c4 g5 a4 e7 h4 e8B c3 b6 f4 b7 a3 b5 h3 b6 a2 d6 f3 d7 Rh4 d5 Ra7 d6 Nc6 b8B Rf4 b7 Qa5 d8R Nge7 d7 Ra6 Bd2 Na7 Qc1 Nf5 Bg2 f1R Bd6 f2 b8Q Kh8 Qbb2 Rg4 Bb4 Bd6 Qa3 Nb5 Rh2 Bb7 Rc8 Bc6 d8Q Qb6 Rc7 Ra7 Bf7+ Be8 g7+ Kh7 g8N Kh8 g6 Rb7 Nh6 Ne3+ Kb3 c2 Nc3 Nd1 g7+ Kh7 g8B+ Kh8 Rb1 a1Q Na4 Qad4 Ka2 Qg7 Bg6 Qd7 Rh1 h2 Nh3 Rg1 Qa8 f1R Qa5 Rf6 Rb3 Rf7 Rd3 Rf2 Rd4 Rf5 Re4 Rgf1 Re5 Rf8 Rg1 R1f7 Rge1 Rg7 Rh5 Rf5 Re5 Rf8 Rh4 Rf5 Qb1 c1R Qbb2 Rc3 Kb1 Rcf3 Qc2 Rf8 Qcc1 R3f5 Nf7+
bkb1RqN1/3Q3Q/7b/nB2B1qn/1NB1r3/R1Q3Rq/Q1N1qpr1/1K3Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 c5 b4 Kc7 d4 g5 Kd2 f5 Kc2 a5 e5 g4 b6+ Kb7 h6 a4 h5 g3 e6 a3 h7 c4 d6 c3 d7 a2 e7 f3 e8B f4 b5 f2 h6 g2 d5 f3 d6 Nc6 Nh3 g1Q Bb2 Nb8 Nf4 Qh4 d8R Qg2 d7 Na6 Na3 Qgh2 Nd3 Be7 Rg1 Ra7 Nb4 Nb8 Bc4 Qg4 Qf1 Bd6 Rg3 Qgh3 Kc1 c2 Be5 Nf6 Kb2 Rf8 h8Q Bc5 h7 Nh5 Qg8 Be7 h8Q Bg5 Qhh7 Ra4 Qe6 Ka8 b7+ Ka7 Qd5 Nc6 b8N Bh6 b6+ Ka8 Qd2 Rg8 Qc3 Na5 N8c6 Kb7 Ne7 Rg6 Qg2 f1B Ng8 Rg4 Qg1 Bg2 Qf1 Ka8 b7+ Ka7 Rb1 c1Q+ Ka1 f2 Nac2 Qg5 Rb3 Bh1 Ra3 Q2g2 Bb5 Qf3 Bf7 Qe2 Re8 Bc6 d8Q Be4 Rf3 Rg2 Rg3 Bc6 Qd7 Bd5 Nd3 Re4 Ndb4 Bc6 Bd4+ Kb8 Bfc4 Qed2 Be5+ Qd6 Ne3 Bd5 Kb2 a1Q+ Kc2 Qa2+ Kc1 Qd2+ Kb1 Qe2 Nec2 Ka7 Bd3 Qf8 Bdc4 Kb6 b8Q+ Bdb7 Qbd6+ Ka7 Q6e6 Ka8 Bf6 Kb8 Qa6 Ba8 Bd4 Nb3 Qa4 Na5 Qab3 Rf4 Qa2 Re4 Be5+
1R1brrq1/B2Q4/1B4bN/KN1nkqnQ/1r4p1/1B1Q3Q/NR4q1/Qr2R3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 Kf6 b4 c5 d4 a5 Kd2 e5 Kc3 g5 h5 c4 d6 g3 h6 e4 d7 e3 d5 g4 b6 e2 b7 e1R d6 a4 b5 g2 Kb4 c3 h7 c2 b6 a3 Nf3 g1R Be3 c1Q Rh2 a2 Nd4 Ne7 Bc4 Rg2 Nb5 Qc7 d8N Qd2+ N1c3 Nd7 b8R Ng6 b7 Qc2 Qd3 Rc1 Bb3 Ra7 Nf7 Be7 Nh6 Qe2 Bb6 Rh1 Re1 a1Q Na2 Nc5 d7 Qce5 d8Q Re8 Q8d7 Bd8 Qh3 Ne6 h8Q+ Ng7 Qh7 Ne6 Qdd3 Rf1 Qhd7 Rgg1 Rg2 Qf3 Rb2 Qg2 Qh5 Ne7 Qdh3 Ng5 Qdd3 Kg7 f6+ Kh8 f7 Kg7 f8B+ Kf6 f5 Be6 Qd7 Bf7 Qdd3 Ra6 Ba7 Rb6 Ka5 Nd5 Bc5 Bg6 Bf2 Ke7 f6+ Ke6 f7 Rh1 Be3 Qf5 f8Q Ke5 Qa3 Qc1 Qa4 Qcc8 Qa3 Rf4 Qa4 Rf6+ Beb6+ Re4 Qa3 Rff8 Qe7+ Qce6 Qd7 Rg1 Rc8 Qg8 b8Q+ Bc7 Qb7 Bd8 Rb8 Rf1 Qbc8 Rh1 Qc1 Rf1 Rd1 Rb4 Qa1 Re1 Rdd2 Rc1 Rd1 Rb1 Re1+
N5nb/6Nb/B4BRN/b1B2p2/kQrqB1n1/4q2r/KBR1b1Q1/1Q1n1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 d4 f5 Kd2 g5 Kc2 a5 Kb3 c5 h4 a4+ Ka2 g4 b4 g3 b6 g2 h6 c4 b7 c3 e5 c2 h5 f3 h7 f2 d6 Kc6 b5+ Kb6 h6 Ka5 d7 a3 e6 Qh4 d8N Nc6 b8R Ka4 d5 Qg5 d6 Qh5 d7 Qh4 e7 Qg5 e8B Kb4 b6 Ne5 b7 Qe7 Nf3 g1B Bb2 c1Q Nh2 Qg7 Nd2 Qc6 Rc1 Qb6 Ng4 Ka5 Rc2 Ka4 Nc4 Qc6 Ne6 Qb6 d8B+ Bd7 Qb1 Bb4 Be7 Qe3 Bc5 Ba5 Be2 Qf6 Ng7 f1B Bf7 Qd8 Bd5 Be6 Be4 Qdd4 Re8 Rc8 b8Q Bf7 Re6 Bg6 B2d3 Bf2 Qb6 Be2 Rf1 Bfe1 Qb8 Bec3 Ra6 Nf3 Qg3 Nh2 Qg2 Bf7 Rg6 Be6 Ne5 Ng4 Nf7 Bd5 Ka1 a2 Nb6+ Kb3 Na8 Ka4 Ba6 Rc7 Bf8 Rc4 Bc5 Qd1 Rd2 Bf6 Rc2 Qdd4 Bc3 Be6 Kb2 a1N Ka2 Nb3 Bb2 Nc1+ Ka1 Nd3 Ka2 Ne7 Re1 Ndf2 Rf1 Rg8 h8Q Nd1 Qh7 Rh8 Qg8 Be5 Qf8 Ng8 h7 Bd5 Nh6 Bf7 Rf6 Bg6 Qb8 Bec7 Ne6 Ne7 Nf7 Be5 Qb6 Rf8 h8B Re8 Bg7 Rh8 Qb7 Rh3 Nh6 Bh7 Rg6 Ng8 Bh8 Bd6 Be5 Bf8 Bf6 Bg7 Qb6 Bh8 Ng7 Bd3 Qb7 Be2 Qb4+
2N3NN/1qB2Qkb/1nqb1rp1/2q1rQNr/2B1r3/2Q2N2/2BRR3/n4K1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 c5 d4 f5 e4 Kf7 e5 g6 h6 f3 e6+ Kf6 b6 c4 d6 a4 h7 c3 h5 c2 d5 f4 h6 a3 e7 a2 e8B Ra3 b5 Rc3 b7 Bf5 d7 Be4 b6 Rb3 d6 Na6 b8Q Rd3 b7 Rd4 Na3 Bd3 Qa7 Ne7 b8N Rd5 Nc4 Nb4 Nb6 Qc8 d8N Qc6 d7 Nc8 Ne6 Bd6 d8R Bc4 Qd3 f2+ Ke2 Qc5 Nc6 Re5+ Be3 c1R Ne7 Nc2 Ng5 Bg8 Ba4 Qc6 Rb1 a1Q N1f3 Qd4 Rb2 Na1 Bc2 Qdc5 Qe4 Rb1 Bd2 Rd1 Ba5 Rd4 Rd7 Bc7 Rd5 Bd6 Qd7 Ra4 Rd2 Rd4 Na8 Qb7 Bc7 Rb4 Nb6 Qcc6 Bh3 f1R Be6 Rf2+ Ke1 Ra4 Re2 Rc4 Qd3 Rce4 Bc4 Qc5 Nd4 f3 Ra2 Rg2 Kf1 f2 Ndf3 Rh2 Rb2 Rh5 Qd5 Be6 Ra2 Rf8 h8N Bg8 h7 Kg7 Qf5 Rf6 Qf7+ Kh6 Nbd5 Nb6 Nc8 Qcc6 Nde7 Qc5 Ba4 Qcc6 Rad2 Qc5 Kg2 Qbc6 Bc2 f1Q+ Kg3 Qb1 Kg2 Qbb5 Kf1 Qb7 Ne1 Qcc6 Nef3 Qbc5 Nd4 Q5d5 Qe8 Rfe6 Nhf7+ Kg7 Qd7 Qdc5 h8Q+ Kf8 Qhf6 Rd5 Ndf3 Bh7 Qc3 Rde5 Nh8+ Rf6 Qde6 Kg7 Ng8 Rd5 Qe8 Rde5 Qf7+
b1brn2n/2BB1Q2/pRN1N1Rr/8/bq3n2/1N2kqB1/1K1R2Q1/1N1QN1b1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 h5 Kd2 c5 Kc3 e5 f4 c4 f6 h3 f7 h4 b6 e4 b7 a6 g5 e3 f5 h2 g6 e2 f6 e1N b5 h3 b6 Nc6 b8R Qe8 b7 Bh6 f8Q+ Nge7 g7 Ng2 g8Q Qh5 f7 Qe5 Bf4 Bg5 Ra2 Nb4 Bg3 Be3 Rd2 Qf4 Kb2 Rh6 Nf3 Bg1 Qfg7 Ng6 f8N Nh8 Nd7 Rg6 Q7f7 Rh6 Ne1 c3+ Ka3 c2 Nc5 c1Q+ Kb3 Qc4+ Kb2 Nc6 Nb3 Qb4 Bb5 Na7 Bd7 Nb5 Qg5 Nc7 Qgg4 Be3 Rg1 h1B Qgf3 Ne8 Qf2 Kc7 d6+ Kb6 d5 Qf3 Qfe2 Nf4 Qg2 h2 Be6 Nh5 d7 Kb5 d8N Kc4 Bd7 Nf4 Ne6 Ba7 d6 Bf2 Nd3 Kd5 Ne1+ Ke4 Bb5 Ba7 d7 Ke3 d8B Bb6 Bd7 Bc5 Qf1 Bg2 Bb6 h1B Bc7 Bh3 Qg2 Bf5 Rf1 Be4 Rff2 Bc6 Rd6 Ba4 Rfd2 Ke4 Rc6 Bg1 Rb6 Ra7 Ra8 Ke3 b8N Rb7 Nc6 Rb8 Ra7 Bb7 Rb5 Rd8 Rg5 Bc8 Rb7 Qh5 Rg6 Qg4 Qh3 Be4 Rb6 Qf3 Qg2 Bd5 Nb8 Ba8 Nc6
3K1br1/1B1Rp1Q1/6qQ/1NB1B1rb/Q5b1/N3bQkr/7N/Rn1QR1nq b - - 0 1 illegal: No possible last move
2r3k1/NpRQ4/bB2n3/Q1n1q2B/QR4K1/4rR1n/N2qN1Qb/1Q1Bqq2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 a4 h5 g4 c5 d4 c4 f6 b3 a5 h4 d6 b2 g6+ Ke8 a6 h3 a7 c3 d5 h2 g5 c2 g7 Kf7 d7 e4+ Kg4 e3 f4 e2 f5 e1Q d6 Qb6 d8N+ Ke8 g6 Na6 f7+ Kd7 f6 Qef2 Ra4 Qe1 Rb4 Qd2 Be2 Nc7 Nc3 b1Q Na2 Nd5 Nc6 Ke6 d7 Bc5 d8Q Bd7 f8Q Rc8 a8Q Bd6 f7 Qc7 Qa5 Rh3 Na7 Re3 Qfe8+ Nge7 f8R Bb5 Qa4 Ba6 Rf3 Nf4 g8Q+ Kf6 Qdd7 Nc6 g7 Nd4 Qh5 Ne6 Qha5 Kg6 Qf1 Nh3 Bd1 Bf4 Ne2 Qe5 Bb2 c1N Bd4 Nd3 Bb6 Ndc5 Qh7+ Kf6 g8B Qbe4 Rg1 h1Q Qg2 Qb1 Re1 Qf1 Bf7 Qba1 Qhd3 Kg7 Qb1 Bh2 Be8+ Kg8 Bh5 Qg1 Ref1 Qf2 Rf7 Qfe1 R1f3 Qf1 Qd6 Qac3 Rc7 Qde1 Qe7 Qcd2 Qed7
Nq1NR2N/2Bn4/1nK2BB1/4r3/1r1p1Q1Q/QR1Nn3/1b1Rrn1r/2Nb1k2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 b4 d6 h4 g4 c4 a4 c5 a3 b6 e4 h6 e3 h5 e2 c6 e1N c7 d3 h7 a2 b7 g3 b5 d2 b6 g2 h6 Qd7 Ne2 g1N Qb3 d1R+ Nd2 Ra4 Bb2+ Kf7 f6 Kg6 f5+ Kg5 f7 Kg4 f6 Nc2 Nc1 Nf3 Nd3 Kg3 Rh3+ Kg4 Qa3 Nh2 Nb3 Rd2 Rd1 a1R Nc1 Be7 f8N Re2 f7 Bf6 Ne6 Qe8 f8R Rb4 Nd8 Nd7 b8Q Ne3+ Kc6 d5 b7 Ra2 Ba1 Bb2 Rd2 Ngf6 Rf3 Rg8 h8N Rg5 h7 Re5 Bh3+ Kh4 Bf5 Nhg4 Bg6 Nf2 Rg8 Qf8 Rg3 Nb6 Rf3 Bf5 c8N Be6 Qc7 Bh3 b8B Bg4 Qd6 Nfd7 Bc7 Qf4 Re8 Qg3 Qf8 Kh3 Qf7 Kg2 Qf4 Qh2 Rh3 Kf1 Rg3 Na4 Nb6 Bf3 Na8 Nab6 Nhf7 Bg4 h8Q Bf3 Qhf6 Qh8 Q6h4 Qf8 Nh8 Bh5 Ndf7 Bf3 Re6 Qb8 Nd8 Re1 Bf5 Bd4 Rgg6 Nec4 Qhg3 Nd1 Re2 Re4 Qgh4 Bg7 Re3 Rh2 Re8 Be5 Re2 Nf2 Rd2 Bd1 Nc5 R1e2 Rg3 Bd4 Rb3 Ne3 N5d3 Bg7 Bd4 Re7 Bc5 Bb2 Bg6 d4 B5d6 Re4 Be7 Re5 Bf6
r6b/6QQ/3B2QR/2rkNp2/R1R1b1rN/3N3B/BN1pK1nN/1b2nnq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e4 Ke7 c4 Ke6 h4 a5 b4 g5 b6 d5 b5 f5 b7 a4 b6 g4 c5 g3 h6 d3 c6 d4 c7 d2+ Ke2 g2 h7 a3 h5 a2 h6 Nf6 Nc3 Ba3 Na4 Na6 b8N Rg8 h8Q Nh5 h7 Bd7 c8R Bb4 b7 Re8 Nb2 Nc5 Qg7 Qe7 h8N Nb3 Nf3 g1R Bh3 Ra5 Rc4 Bc3 Na6 Qh4 b8N Rf8 Nh2 Qd8 Nc6 Qg5 Ng6 Rc5 Nh4 Rg4 Nab4 Ra8 N4d3 Bc8 Qh7 Bb7 Qg1 d1B+ Kf1 Rg8 Bf4 Bc2 Ke2 Nd2 Qg3 Ra8 Qg1 Qg7 Bg3 Kf7 e6+ Kf6 e7 Ke6 e8B Bb1 e5 Kd5 e6 Nf1 e7 Nf4+ Kf2 Ng2 Bd6 Qg8 Nce5 Qg7 Bh5 Qg5 e8Q Qg8 Ne1 d3 Qeg6 d2 Ke2 Bc6 N1d3 Bd4 Nef3 Bh8 Nfe5 Qg7 Qe3 Bb7 Qeh6 Bc6 Nef3 Qd4 Qh6g7 Qg1 Nfe5 Bc2 Rc1 a1N Ra4 Bb1 Rcc4 Nc2 Qg5 Bd7 Bf7+ Be6 Q5g6 Nce1 Nd7 Kc6 Bg8 Bd5 Bf7 Be4 N7e5+ Kb7 Rc1 Kb6 Ba2 Kb5 Rcc4 Kb6 Nd7+ Kc6 N7e5+ Kd5 N2f3 Rg3 Bg4 Nge3 Ng2 Bc2 Rh6 Bb1 Ngh4 N3g2 Bh3 Rg4 Nh2
2r2Qbb/1k1BR3/1q5B/n1p3pQ/2RQN1KR/N3QN1B/2n1br2/3rQ1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 d4 Kc7 h4 a5 b4 f5 e4 a4 b6+ Kb7 e5 a3 b5 a2 e6 g6 h6 Qc7 h7 Ra7 d6 Qg7 d5 Ra5 d7 Be7 d8Q Bg5 e7 Nc6 e8B Qd4 h5 Qf6 d6 Bh6 d7 Qe6 Na3 Kb8 b7 Ra7 Bh3 Nge7 Qe1 Bg7 h6 Nd5 Qe7 Na5 d8R Nc3 Bd7 Ne2 Re8 Qb6 Qe3 Bb2 Rb1 a1N Re7 Nc2 Rh2 Rf8 h8Q Ra8 h7 Ka7 b8N Kb7 Qhd4 g5 h8Q Ba1 Rb4 Rf7 Qh5 Rf8 Qdd3 Bh8 Rc4 Rf6 Qdc3 Rd6 Bb2 Rd1 Na6 Rb8 Nc7 Ra8 Ne8 Rb8 Kf2 f3 Nf6 f4 Ne4 Ra8 Qcd4 Rb8 Kf1 f2 Kg2 f1B+ Kf3 Ra8 Kg4 f3 Rh1 f2 Nf3 Ng1 Bc3 Be2 Rh2 Qa7 b6 f1R Bb2 Rf2 Ba1 Kb8 b7 Qb6 Rh1 Ka7 b8Q+ Ka6 Qbf4 Kb7 Qf8 Rb8 Qd6 Ra8 Bg7 Rb8 Qdd4 Ra8 Be6+ Bd7 Bh6 Rc8 Re8 Bc6 Bd7 Bd5 Re7 Bg8 Bg2 Nc6 Rh4 Na5 Bh3
1N2q3/1bR1Q1N1/2B2n2/R1N1kb1Q/3b3q/nK2pB1n/3QpBQR/2r1Qr2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 Kd2 Kd6 Kc2 e5 f4 a5 g4 c5 b4 h5 f5 h4 b6 e3 g6 e2 g7 h3 b5 e4 g5 h2 f6 c4 b7 a4 b6 c3 f7 a3 g6 a2 Nf3 Ra5 Nbd2 Rh7 Ng5 Rh8 Kb3 c2 Qe1 Nd7 b8Q+ Qc7 b7 Rh5 Bg2 Ne7 g8Q Rh3+ Bf3 Rh5 g7 Ng6 Ne6 Be7 f8R Bg5 Rf7 Nf4 Qh7 Ne5 g8B Be7 Ng7 Bf6 Qa8 Ng4 b8N Qd8 Rc7 Rf5 Qh5 Qe8 Be6 Bb7 Bd7 Rc5 Bc6 Nh3 Ba3 c1Q Bb4 e3 Ba5 Qd7 Ne4+ Ke7 Bb4 Be5 Bc3 Nf6 Bd2 Rc2 Nc5 Rf4 Bc3 Qd2 Ba5 Rc1 Bb4 Qd3+ Bc3 Qg6 d6+ Kf7 d5 Qe7 d7 Bd4 d8Q Rf5 Rg1 h1B d6 Bc8 d7 Bg2 Bfe4 Rf1 Bf3 Qe4 Rh1 Qh4 Rh2 Bb7 Bg4 Be4 Bf3 Bf5 Bb4 Nh7 Qe8+ Kf6 Qe4 Qe8 d8Q+ Qe7 Qd3 Ke5 Qdd2 Qe8 Qdg5 Nf6 Qg2 Rh1 Qa6 Rg1 Qc4 Rh1 Qcf7 Rf1 Qe7+ Kf4 Qed1 Qd8 Qb2 Qd7 Be1 Qe8 Nce6+ Ke5 Bf2 Bc8 Qe1 Ba6 Qbd2 Bb7 Rb1 a1N+ Ka2 Nb3 Ra1 Na5 Ka3 Nc4+ Kb3 Ne4 Ra2 Nf6 Ra6 Na3 Nc5+ Kf4 Qd8 Ke5 Ra5 Rh1 Qd7 Rf1 Qe7+
R2n1R1N/2BQ1NQ1/K3N1rp/3br2N/kBBR2qn/p1b5/3Nr2Q/2q1q3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 c5 Kc4 a5 d4 e5 f4 h6 g4 a4 b4 e4 d6 h3 b6 Kc6 g5 e3 b7 h2 d5+ Kb6 d7 e2 d6 e1R b5 Ka5 f6 Na6 b8B Nb4 g6 Re5 f7 Be7 f8R Nd3 f5 Ra6 b6 Re1 g7 Nb4 b7 Bf6 Ne2 Qe8 d8N Na2 d7 Bh4 f6 Qh5 f7 Qg4+ Nf4 Ne7 g8Q Re5 Bd2+ Nb4 Qg7 Be1 Ne6 Nf5 d8N Nh4 Bc7+ Rb6 b8Q Bb7 Rg1 h1Q Bc3 Bg2 Qd7 a3 Nd2 Bc6 Rd1 Ka4 Rg3 Rh7 Rd3 Re2 Rd4 Rb5 Rc1 Bf3 Rd1 Nc6 Nh5 Rh8 Bb4 Rg8 Ne4 Bc3 Nd2 Rf2 Bd3 Re2 Rf1 Ra5 Re8 Qhg1 f8N Qh1 Rf2 Qe1 Ng6 Rb5 Nf7 Nd8 Ngh8 Bg2 Qh7 Rg6 Qg7 Ba8 Bb6 Bg2 Qh2 Bh1 Rf3 Bg2 Bc7 Bh1 Kd5 c4+ Kd6 Bg2 Rf2 Bd5 Rg8 Nc6 Ra8+ Ra5 Nf3 Ba1 N7g5 c3 Ba6 c2 Nd2 c1Q Rff8 Bf3 Bc4 Bc3 Ngf7 Be4 Bb8 Bh1 Kc7 Bf3 Kb6 Be4 Ba7 Re5 Ka6 Bh1 Bb6 Bd5 Qe7 Nd8 Bc7 Rgg5 Qd6 Rg6 Qd7+
1R2b2R/Nr2b1nK/2B4p/Rr4Q1/q2Qp1qq/2k1BRN1/Rb3B1N/3n1Q2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 f4 a5 g4 e5 b6 c5 f6 h3 b7 h2 d6 h6 d5 c4 g5 a4 f7 c3 d7 a3 Kf5 a2 Kg6 e4 d6 c2 f5 Qe7 d8B Na6 b8N Bg7 f8R Kb3 f6 Qe5 f7 Rh7 d7 Qd4 Bb5 Qe3 Nf3 Ra7 Nc3 Rc7 Ne2 Qf2 Nc6 Qe3 Qf1 Qd3 Na7 Qd4 Bc6 Nb4 Ng3 Qg1 Be3 Rb7 Bdb6 c1B d8Q Nc2 Qd4 Nf6 Rh8 Nh5 f8R Bd7 Rf5 Rb8 Ra5 Bf8 Bf2 Re7 Be3 Re5 Kh7 Be8 g6 Rb5 g7 Be7 Bf2 Ne3 g8Q+ Kc2 b4 Rb7 Qg5 Nd1 Be3 Ng7 Bc5 R5b6 b5 Bb2 Bf2 Qg2 Rg1 h1Q Nh2 Qf3 Be3 Kb3 Rg2 Qe2 Rf2 Qg4 Rf3 Kc2 Rc1+ Kb3 Rc2 a1Q Rg2 Qa4 Rd2 Rb8 Rc2 R6b7 b6 Ba3 Ra2 Bb2 Qd7 Kc3 Bf2+ Kc2 Bce3 Kc3 Qdd5 Qg2 Qd6 Q2h3 Qdd5 Qhh4 Qd8 Rd7 b7 Rd5 Qd6 Rb5 Qdd5 Rc8 b8R Rc7 Qd8 Rcb7 Qd4+
3rnr2/2B1B1N1/2p2b2/q1R3B1/1QQ3qp/bbnRN1N1/Bk1qB2Q/1R3K2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 b4 Kd6 d4 h5 f4 a5 f6 e5 f5 c6 b6 a4 f7 a3 b7 e4 g5 h3 f6 h4 b5 h2 b6 e3 g6 a2 g7 e2 Qd3 Ne7 g8B Ng6 Na3 Qd7 Nc2 Qc7 Rb1 a1Q Bg5 Ra7 Ne3 Ra8 Qc4 Bh6 f8B+ Ne7 f7 Nd7 b8B Nf6 b7 Bg7 Kf2 Kd7 d6 Qaa5 d5 Qd8 Bc7 Ne8 b8Q e1B+ Kg2 Bgc3 Ne2 Bf6 Ng3 Bb4 Be2 Ba3 Rhc1 h1Q+ Kf2 Qe4 Kf1 Qg4 Rc2 Ng6 Be7 Nf4 f8Q Ba6 Bf7 Bb5 Rc3 Ba4 Qb2 Bb3 Rcc1 Kc8 d7+ Kb7 d6 Nd5 Bg8 Nc3 Bd5 Qc8 d8N+ Ka7 Rc2 Qcd7 Ne6 Rd8 Ng7 Rg8 Qf7 Rf8 Qb4 Na4 Rc4 Ka6 Qe6 Nc3 Rc5+ Qc4 Qf7 Qg4 d7 Qd3 Rc4 Qd2 Qa2 Rb8 d8R Ra8 Be6 Rc8 Rd3 Rd8 Qd6 Kb5 Rc5+ Ka4 Qb2 Bc2 Ba2 Bd1 Qb6 Bb3 Qg8 Bb4 Qc4 Ka3 Rc1 Kb2 Qe5 Ba3 Qbb4 Qb5 Qef4 Qb6 Qf2 Qb5 Qh2 Qa5 Rb1+
7R/4r1n1/qQ2RkB1/B1pnbn2/1BQ1QNRb/p4bQb/2K2N2/1Q3r1N b - - 0 1 illegal: No possible last move, all moves rejected
1q6/R2pQ1r1/Nbr4R/Nb3KB1/N1b3R1/2NB3k/1np1B1n1/1Q1QnNb1 b - - 0 1 illegal: No proof kernel
n1Nb4/QB2R3/NbB2rq1/p1N3r1/N1NQb1q1/5pRR/k3Qb1B/1n5K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 Kd6 h4 Kc5 b4+ Kc4 d4 c5 b6 g5 h6 a5 h7 f5 h5 g4 h6 g3 b5 Qe7 e4+ Kb4 e5 c4 b7 c3 d6 c2 d7 Kb3 d8R Qe8 e6 Bb4 e7 Be6 d5 Qf8 e8B Ra7 d6 Ne7 b6 Be1 d7 Ng8 Ne2 Na6 b8Q Nf6 b7 Qe7 Nec3 Rg8 h8N Ne4 h7 Bd5 Nf7 Qd6 h8Q Rg5 Qhd4 Nc7 Rh3 f3+ Kh1 f4 Na4 f2 Qe2 f3 Bf4 c1B Na3 Nc3 Nc4 Qg6 Nfd6 Be4 Nc8 Ra6 Qba7 Rf6 b8N Nb1 Na6 Na8 Ra2 Ba3 Rc2 Bb2 Rc3+ Ka2 Re3 Bc6 Re7 g2+ Kh2 g1B+ Kh1 Be4 Bh2 Qh5 Rg3 Qg6 Bh3 f1Q Bf5 Bb7 Be4 Qh3 Bc6 Qhf5 Bf7 Qh3 Bfd5 Qg4 Rh8 Be3 d8N B1f2 Qdc5 Bd4 Rhh3 Bde3 Qd6 Bb6 Ne6 Bd8 Nec5 Bb6 Qf1 Be5 Qd7 Bec7 Be4 Bd8 Qd4 Na3 Bb5 Bd5 Bc6 Nb1 Qfd3 Be6 Bb7 Bf5 Bec6 Be4 Qe2+
6nq/B2rN2b/nq1RB2Q/k1r1RN1p/1p1pBQN1/4b2K/3NR1Q1/2b2N2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 f4 h5 Kf2 d5 Kg3 Kd7 c4 Kc7 a4 b5 a5 e5 a6 b3 f6 e4 c6 Kb6 c5+ Kc7 f5 b4 g6 e3 a7 b2 f7 e2 f6 Bg4 g7 Ne7 g8B Qe8 Qd4 Nc8 Ra5 Na6 Be3 Ne7 Rh2 Nc8 Nf3 Rh7 Qf4+ Bd6 f8Q Qd8 f7 Qg5 Qh6 Be5 f8R Qf6 Rd8 Bf5 Nfd2 Bg6 Rd6 e1B+ Kh3 Bc3 g4 Bd3 g5 Bd4 g6 Be4 g7 Qg5 Be6 Qe7 g8N Bh1 Re2 Qg7 Bg2 Qh8 Be4 Ne7 Nf6 Ng8 Ng4 Rd7 Nf1 Rc8 Nbd2 b1Q a8Q Qa1 Rb5 Qa5 Bg1 Qb6 Ra5 Be3 Rb5 Kd8 c7+ Ke7 c6 d4 Bh2 Bh4 Re5 Bg5 Bg3 Re8 c8N+ Kd8 Ne7+ Kc7 Nf5 Rc8 Bc2 Bd5 Be4 Bb3 Bh2 Bc2 Bg3 Qa5 Bh2 Kb6 Bg3 Qc5 c7+ Ka5 Bh2 Rb8 c8N Rb5 Nce7 Qb6 Bd3 Rc5 Qg2 Bb1 Be4 Bc2 Nb1 Bc1 Nbd2 Bb1 Qfg3 Be3 Qgf4 Bc2 Qff2 Nb8 Nh4 Nc6 Rf5 Bg5 Bf3 Bb1 Rdd5 Rb7 Bb8 Be3 Rd6 Rd7 Re5 Bh7 Ba7 Nb8 Be4 Na6 Nhf5 Ba3 Qfg3 Bc1 Qgf4
1R1n3q/2N1p2b/2kq2R1/K1b1r2N/1p3Q2/bN1N1pr1/NQ1BR3/1QB3nB b - - 0 1 illegal: No proof kernel
1n2K2B/1N4pQ/pRpbn1r1/1nqRR3/R3Bp2/1Q3N1Q/1kNrR3/1b1B4 b - - 0 1 illegal: No proof kernel
n5N1/3kR1bb/2bbq3/NR1BRB1K/qR2bBn1/8/rQ1RR1r1/3q2NR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 c5 Kf3 a5 Kg4 e5 b4 e4 f4 h3 d4 a4 d6 a3 d7+ Ke7 d5 c4 f6+ Kd6 b6 a2 f5 h2 f7 h6 b7 e3 f6 c3 b5 c2 b6 e2 Kh5 e1B g4 Bb4 g5 Bg7 f8N Ba5 f7 Be1 g6 Bgc3 g7 Bd4 Ng6 Bb4 f8R Ra5 Bh3 Qe7 d8R+ Nd7 b8R Qe6 b7 Ra4 Bg5 c1Q Rde8 Nb6 Rf2 Kd7 d6 Na8 Qc2 Qd1+ Re2 Ra5 Qb2 Nf6+ Kh4 h5 g8B Ra3 Bf4 Ng4 Nd2 Bg7 Ne7 Rh6 Nc4 Rg6 Rc1 a1Q Na5 Ra2 Rc5 Qa4 Rce5 Q1d1 Bg2 Bc5 Bd5 Ba3 Bh7 Rg5 Kh3 h4 Bf5 Bb4 Ng8 Rg6 Kg2 h3+ Kg3 Bc5 Kh4 Ba3 Nf3 Bb4 Kh5 Ba3 Rhe1 h1B Rg1 Bg2 Rh1 h2 Ng1 Be4 Re7+ Kd8 d7 Bd6 Re8+ Kc7 d8R Bd7 Rd2 Bc6 Rdc8+ Kd7 Re2 Bb5 Rcc2 Bc6 Rcd2 Bc2 Rbc8 Be4 b8R Bb1 Rb5 Be4 Nh3 Bc2 Rcb8 Bb1 Rf1 h1B Ng1 Bhe4 R8b6 Nh2 Rb4 Rg2 R6b5 Bbc2 Nf3 Ng4 Rh1 Bb1 Ng1 Bf3 Bd3 Be4 Bc2 Bh7 Bf5 Be4 Re7+
R1Bnn1r1/2kNRqq1/b3rB1R/3N3N/4BK2/3BBB1r/4q1B1/b3Q1rb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 h5 e4 f5 b4 d5 g4 Kd7 c4 a5 g6 a4 e6+ Kc7 g7 a3 c5 a2 c6 f4 e7 h4 e8R d3 e5 d4 e6 h3 e7 h2 b6+ Kd6 g5 f3 g6 f2 b7 Bg4 c7 Ra6 c8B Rh6 b5 Nc6 b8N Qb6 Bg2 f1B Ne2 Ne5 Nd7 Rh3 Ng3 Nf7 Nc3 Qb7 b6 Nd8 Nh5 Bf3 Nd5 Nf6 g8B Bg7 Qe1 Qc7 b7 B1e2 Rg1 h1R b8B Kc6 Rf1 Rg1 Bh7 Kd6 Rh8 Ne8 Bb2 Bf6 g7 Kc6 g8B Rb6 Rb1 a1Q Be4 Qaa7 Ra1 Qe5 Kc1 d2+ Kc2 d1R Bgh7 Qg5 Bf4 Qg7 Be3 Ba6 Ra2 Rc1+ Kd2 d3 Rf2 Kd6 Re2 Rcc6 Bhg6 Rb8 Rh6 Qf7 Ra1 Bh8 Bf6 Rcb6 Kc3 d2 Kd4 d1Q+ Bd3 Kc6 Ke5 Bg7 Bge4 Qb7 Nb4+ Kc7 Kf4 Re6 Ra5 Bc4 Ra8 Ba6 Bf1 Bh1 Bfg2 Nd6 e8B Qc2 Rf2 Qe2 Rf3 Bh8 Rg3 Qa7 Rg7 Qb7 Rgh7 Qg7 B8g6 Ne8 Bef3 Qd5 Nb6 Qdd7 Bge4 Qdf7 Nd7 Qgf8 Ng3 Rb5 Bf5 Qh5 Bg5 Ba1 Re7 Qhf7 Bf6 Ra5 B5e4 Rg5 Nh5 Rg8 Bc2 Q7g7 Bcd3 Qff7 Nd5+
3B1q2/Nnn5/2Q2b2/r1RB3R/q1pN1NK1/1BR1N2N/2b3Nk/1Nr1b1bq b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 d4 h5 b4 e5 g4 a5 f6 c5 f7 a4 b6 a3 g5 h3 g6 a2 b7 h4 b5 h2 b6 h3 g7 Rh4 Bg5 Nh6 g8B Ra4 Qc2 Nc6 b8R Bd7 b7 Qb6 Bd8 Be7 f8N Nb4 Bg2 Nf5 Rc8 Ne3 b8N Be6 Nfd7 Qc6 Nb6 Qa8 Nc6 Bf8 Na7 Na6 Nc4+ Kd7 Qg6 Nf5 Ne3 Kd6 Rc7 Rh7 Kg4 e4 f4 Ra5 Bf3 Qb8 Bd1 c4 Rc5 Be7 Bb3 Nc7 Qe8 Bf6 Bf7 Ne7+ f5 Nc8 Bg8 Bd7 Bf7 Ba4 Bg8 Bh4 f6 Bf2 f7 Rh8 f8N Qb4 Nc2 e3 Ne6 e2 Ne3 e1B Nf4 Rh7 Nfg2 Qa3 Nf3 Bg1 Ng5 Rf7 Qb5 Rf2 Be6 Rc2 Bg8 Rc1 Qb6+ Kd7 d6 Qb4 d5 Qa3 Bd1 Bc2 Qb7 Qa4 Be6+ Ke8 d7+ Kf8 d6 Kg7 Qc6 Kh6 Bd5 Kg6 Na3 Kh6 Rb1 a1B Rb3 Bf6 Rc3 Kg6 Nb1 Kh6 Be7 Kg6 d8N Kh6 d7 Nd6 Kf3 Nb7 Nde6 Kg6 d8N Kh5 Ngf4+ Kh4 Nd4 Bd3 N8e6 Bc2 Ke2 Kg3 Nfg2 Rb5 Bd8 Ra5 Nef4 Bgf2 Rg1 h1Q Rf1 Kh2 Kf3 Bg1 Kg4 Ne8 Rf3 Nc7 Nh4 Qg2+ Rg3 Qe4 Nhg2 Qe8 Rf3 Qf8 Rg3 Kh1 Rf3 h2 Rh3 Bgf2 Rh5 Kg1 Nab5 h1Q Ngh3+ Kh2 Na7 Bg1 Qd6 Bh7 Bb3 Bc2 Qc6
qN1NK3/1r4Nq/2QN1r2/RN4QR/2Br3b/1q4B1/3BN1b1/kbN1rq2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra3 g5 Ra2 f4 Ra1 Nh6 h3 Nf5 gxf5 Nd7 h4 g4 Qc2 Nc5 Qa4 Ne4 Qd1 Ng5 hxg5 Ke7 Bg2 Kd7 Bf1 Ke8 Kf2 Ke7 e4 Kd6 d4 a5 b4 c5 g6 h5 g7 c4 g8Q h4 b6 a4 b5 a3 b7 c3 b8N h3 f6 a2 e5+ Kc7 f7 Kb6 d6 Ka5 e6 Kb4 d7 h2 b6 c2 d5 Kb3 d6 Bh6 f8N Qe7 d8N Bd7 b7 Qg7 Nf7 Rh7 e7 Bf5 e8N Bg5 d7 Ra4 d8N Rd4 Bd2 Kb2 Nfd7 c1R Nc3 Bb1 Qa4 Re1 Bc4 Qh8 Nge2 Bh4+ Ng3 Rg7 Nc5 Qh7 Nfd6 Rd7 Nb3 Rde7 Rg1 h1B Qg5 Bg2 Rh1 Rf7 Ng7 Rf6 Na6 Re7 b8B Rb7 Ke1 f2+ Ke2 f1R Ncb5 f3+ Ke3 f2 Ne2 g3 Nbc1 Rg1 Bc7 f1Q Nb8 Qd1 Qa6 Re1 Qc6 Bf1 Rh3 g2 Rh2 Bg3 Rh5 Bh4 Ne4 Qa4 Bg3 Qa8 Ned6 g1Q+ Bf2 Qh1 Bg3 Bg2 Ngf5 Bbe4 Kf4 Bb1+ Ke5 Qf1 Ng7 Qf3 Bh2 Qb3 Bg3 Rff4 Ke6 Rf8 Qc7 Rf6+ Ke7 Rd1 Nf4 Bf5 Ke8 Rh1 Nce2 Rd1 Rc1 a1Q Qc6 Qb1 Rc2+ Ka1 Nd3 Rh1 Rb2 Qe1 Nc1 Bb1 Rc2 Qf2 Rb2 Re1 Rc2 Qf1 Rc3 Qb2 Ra3+ Qa2 Ra5 Qa3 Na2 Qb3 Nc1+
4q1br/1Q5k/1nN1Q3/r1NN2p1/1n1nB1q1/R1NB1NN1/2bK3N/Q2R2r1 b - - 0 1 illegal: No possible last move
2kQN1R1/5Qnq/3qp2b/R4NQ1/2KNb3/Q4qBn/1r3B1r/QQ1Q1n2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 Bh3 Kf7 fxg5 Be6 g6+ Ke8 g5 Bc8 Bg4 hxg4 Ke2 Kd7 Kd3 a5 h4 c5 b4 a4 f6 g3 f7 g2 h5 a3 h6 e6 g7 a2 h7 Bb7 b6 Bc8 g6 Qe7 b7 Qf6 d6 Qf5+ Kc4 Qg5 d4 Qe5 d5 Nc6 b8Q Nge7 g8Q Ra3 g7 Qf5 b5 Qh3 b6 Kd8 d7 Rb3 b7 Qf3 Na3 Nd4 Nb5 Ng6 Nc7 Rb2 Be3 Nc2 Ne2 g1N Nd4 Ne7 Bf2 Nh3 Ne8 Nf5 Rg1 Be7 f8Q Bg5 Qgf7 Bh6 g8N Ng7 Ne7 Ne3+ Kc3 c4 Nef5 Rb5 Qa3 Rb2 Rc1 a1Q Rg5 Rf8 h8Q Qb1 Rg6 Qbe4 Ra1 Qef4 Ra2 Qd6 Rg3 Nh5 Qe5 Rh8 Rg8 Ng7 Qa1 Nf1+ Qe3 Qc7 Qd3 Qcg3 Qf4 Qg6 b8B Qh7 Qfe3 Ba6 Bbg3 Bb7 Qdd1 Bc6 Qab3 Ba8 Ra5 Bb7 Kb4 c3 Kc4 c2 Qe4 Bc6 Qba3 c1Q+ Qec2 Qcf4 Qcb1 Bb7 Nf6+ Kc7 Ne8+ Kb8 d6 Be4 Qda4 Qh4 Qad1 Qe7 d8Q+ Kb7 d7 Qd6 Qg5 Kb8 Qfe7 Kb7 Qef6 Kb8 d8Q+ Kb7 Qde7+ Kc8 Qef7 Ng1 Ne3 Qhf5 Qgh5 Bf4 Qhg6 Rh2 Qh6 Qh7 Nef5 Nh3 Qhh4 Bh6 Qhg5 Qg6 Q6e7 Qh7 Qd8+
k3N1qR/2QR3B/4Q3/4N1B1/prR1RbQ1/3bn2K/bRnr1R2/bq3R2 b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 g5 a4 d5 axb5 f5 exf5 d4 h4 gxh4 c3 Qc7 cxd4 Qd6 d5 Qd8 d4 Kd7 f4 Kc7 Kf2 Kb7 g4 h5 Kg2 e5 b6 a5 f6 e4 d6 e3 d5 a4 g5 e2 d7 e1B f5 Ba5 g6 Bh6 d6 Be1 f7 Qg5+ Kh3 Qf6 d8Q Qc3+ Nf3 Qa5 f8R Ne7 g7 Ng6 g8Q Qd2 d7 Nc6 f6 Nge5 f7 Ng4 Bd3 Nb4 Nc3 Ne3 Ne5 Rb8 c6+ Ka8 c7 Bf4 Nb5 Qa2 Qdg4 Bc3 Bh7 Ba6 c8R Nbc2 Nd6 Bd3 Rf1 Qb1 Ra2 Ba1 Re8 Qb3 f8R Qf7 Nb7 Qg7 Q8e6 Qg8 Be4 Rh6 Qc7 Rh7 d8R Rd7 Rb2 Rd4 Rd7 Rd5 Qg3 Rd4 Kh2 h3 Bh7 h4 Nd6 Rd5 Ree7 Rd4 Ne8 Rd5 Kg1 h2+ Kf2 h1B Qgg4 h3 b7+ Ka7 Rf5 h2 Bd2 Bhe4 Bc1 h1Q Rf8 Bg5 Kg3 Qg1+ Kh3 Bf4 Rff7 Rd4 Rf2 Bd5 Bd2 Qb1 Rf1 Bg3 R7f2 Ba2 Bc1 Nd5 Bg5 Bf4 Qcd6 Rb4 Rc4 Rd8 Qc7 Nde3 b8R+ Rb7 Rdd4 Rd5 Rd8 Rd6 Rdd7 Ka8 Re4 Rb4 Rg7 Be2 Rg6 Rd2 Rf6 Bd3 Rf8 Qg7 Rh8 Qf7 Rf3 Qg8 R3f2
2bQ1Qk1/b3K3/2NrpQ2/2B2p1n/1Q2Q1nr/2RQ2Q1/B3q1BR/q1N4n b - - 0 1 illegal: No possible last move, all moves rejected
RQ4Rq/K4bR1/4NR1R/nq1r1pp1/R2n4/1B1k2Rr/r2r2NQ/2B3N1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 e6 b4 exf5 b5 Bb7 Na3 Ba6 Nb1 Bc8 h4 f6 g4 Be6 g5 Bd7 gxf6 Bc8 h5 g6 h6 Bg7 hxg7 Ba6 Bg2 Bb7 Bf1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 e4 a5 b4 h4 b6 a4 b7 g5 b5 a3 e5+ Kd7 Kc5 h3 d4 h2 e6+ Ke8 d6 c6 e7 Kd7 e8R a2 d5 Ra7 f7 Nf6 f8R Qe7 Kb6 c5 g8R c4 Na3 c3 Rg7 c2 Qd2 Ne4 Nc4 Ra5 Rf6 Nc5 Ne3 Nc6 b8R Nd4 Bc4 Nb7 Ra8 Rh3 Reg8 Qf7 Ng2 Qe7 Ba3 c1R Bb3 Rc2 Bc1 Rb2 Qf4 Rd2 Qf2 Ra3 Qg3 Na5 Ka7 Ba6 b6 Bc4 b7 Ra4 Rb1 a1R b8Q R1a2 Ra1 Rb4 Qf2 Rb5 Qf4 Rac2 Ra4 Ra2 Ne2 Qf7 Rg1 h1Q Qh2 Qe7 Rh8 Rc5 Rhh6 Rb5 Re1 Qf1 Ng1 Rc5 Re3 Qd3 Rgg6 Qd8 Rg3 Qh8 Rg8 Qf1 Rgg6 Be2 Rg8 Bh5 Rg7+ Bf7 Rh5 Qc8 Rhh7 Qb5 Rhh6 Kd8 d7 Ke7 d8N Kd7 d6 Rd5 Ne6 Kc6 d7 Qh8 Qc8+ Kd6 d8R+ Ke5 Qb8+ Ke4 Rg4+ Kd3 Rdg8 Rf3 Rg3 Re3 Rg4 Rh3 Rg3+
n5Q1/2NNK1B1/p4NRN/1N1N3N/bk1p2br/r5n1/2B1n2b/nB1R2Q1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Qc7 g5 Qb6 g7 Qg6 hxg6 Nc6 Rh3 Nb8 Rh6 Ba6 Rh1 Bc8 Kd2 e5 Kd3 Ke7 Ke4 Kd6 b4 h5 c4 a6 b6 h4 b7 h3 b5 Kc5 f6 d6 b6 h2 f7 d3 Ne2 d2 Ng3 Nc6 b8N Nd4 b7 Ne6 Kf5 e4 Nc6 e3 b8N e2 Nd4 e1N Nb5 d5 Bb2 Nh6+ Kf6 Nd3 g8N Kb4 g7 Nf2 c5 Rh7 g6 Bb7 c6 Bd6 f8N Kc5 c7 Nf5 c8B Rh4 Nh6 Nc7 g8N Nd3 g7 Bc6 Nbd7+ Kb4 Ne6 Nd4 Rg1 h1N N1c3 Ne2 Nh5 Ndc1 Rg6 Bh2 Ke7 Nb3 Ngf6 Nhg3 g8Q Rb8 Qb1 Na8 Nec7 d1B Qc1 Ned4 Bd3 Bg4 Bc2 Nde2 Qg1 Rb7 Rd1 Na1 Nb6 Be8 B8f5 Rb8 Nbd7 d4 Bc1 Rb6 Bb1 Rc6 Bfc2 Rc5 Bf4 Rf5 Be5 Rf3 Nfe4 Rd3 Bg7 Rf3 Nef6 Rd3 Na4 Ra3 Nab6 Bf7 Qf8 Bb3 Qg8 Ba4 Nbd5+
r2B3R/2r5/1R2p2k/2rBQ2N/b1B1p2q/2K2BQN/1B1rNB2/qB4qn b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 a4 b5 axb5 c4 f4 Nc6 d3 Bg7 dxc4 Nd4 c5 Bf6 Ra3 fxe4 Ra1 Nf5 gxf5 g4 Qd3 Kf8 Qd1 Bg5 hxg5 Ke8 Kd2 Kf7 b4 Kg7 c4 d5 c6 a5 g6 h5 c7 h4 f6+ Kh6 g7 h3 c5 h2 c6 g3 f7 a4 f8N g2 f5 a3 b6 a2 b5 Ra4 f6 Ra6 b7 Bh3 b8Q Qe8 c8B Ra5 b6 Be6 f7 Bh3 c7 Ra6 b7 Bd7 Qg4 Ra7 Bc4 Rh7 Ne6 Qd8 f8B Qe8 Bb2 Qg6 Nf4 Qd6 Ngh3 g1Q Kc3 Ra6 Qg3 Ba4 Nh5 Nf6 Bg4 Qf4 c8B Ra8 Bf3 Ng4 Bf5 Nf2 Qe5 Qg4 b8B Qh4 g8B+ Rg7 Bc7 d4+ Kb4 d3 Bgd5 d2 Bfe6 d1R Nc3 Ng4 Ne2 Nf2 Rb1 a1Q Bd8 Rd4 Kc3 Rd2 Bc8 e6 Bc5 Rh7 B8a6 Rf7 Ba2 Rc7 B6c4 Qf1 Rg1 h1R Ba7 Rh2 Rh1 Qg1 Bd4 Rg2 Rh2 Nh1 Bf2 Rc5 Bd4 Nf2 Kb4 Rb8+ Bb5 Kh7 Nc1 Rc6 Bbc3 Rcc8 Ng5+ Kg6 Nf6 Qg4 Rh8 Rd3 Nh3 Nh1 Nh5 Rgd2 Bf2 Rc7 Ne2 Ra8 Rb2 Rc2 Bb1 Rdd2 Rb3 Qg5 Bb2 R2c5 Bbc4 Qg4 Kc3 Qg5 Re8 Kh6 Rb6 Qh4 Rh8+
1NN2NbR/KB1n1p1p/n1pN4/nqN1Q3/1B1pB1kN/RQbN1q2/8/8 b - - 0 1 illegal: Other
1Q1b4/q4RKQ/Q1q5/n1QQNBQr/RB2bk2/r1r3N1/1Q3Br1/1nb4r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 b4 c5 g4 a5 f4+ Kh6 d4 e6 d6 a4 d7 c4 b6 h3 g5+ Kh7 b5 h4 d5 h2 b7 h3 g6+ Kh6 g7 a3 f6 a2 f5+ Kh7 b6 c3 d6 c2 f7 Be7 f8Q Ra4 f6 Kg6 f7 Nf6 Nd2 Kg5 Qe2 Qc7 d8Q Ne4 Nc4+ Nd2 Ba3 c1R Bc5 Nb1 Qd7 Rh7 g8Q+ Rg7 Qh7 Rc3 Qb2 Ra7 Bd3 Rg6 Ne2 Nc6+ Ke4 e5 Rf1 Rg8 b8B Ra4 Ba7 Bb7 Qa8 Qc8 Kd5 e4 Ke6 e3 f8Q Qc7 Kf7 h1Q Qa3 h2 Ne5 Na5 Qb2 Rh4 Bb4 Rh5 Rf6 Qg2 Bf5 h1R Qfc8 Bc6 b7 Qg1 b8Q Be4 Qf8 Qc6 Bd4 Rg6 Qa6 Rg8 Qe6 Qf2 d7 Rg6 Nc1 e2 d8Q e1B Qed5 Bd2 Ne2 Bc1 Be3+ Qf4 Bf2 Qe3 Qbc8 Qa7 Qb8 Bc5+ Qfe7 Bb6 Qd8d6 Bd8 Q6c5 R5h2 Kf8 Rg2 Ng3 Rgh6 Rf7+ Kf4 Qf6 R6h5 Kg7 Nd2 Rb1 a1R Qfg6 Ra4 Ra1 Nb1 Ra2 Raa3 Qf6 Rab3 Ra4 Ra3 Qg5+
bN3n2/NQ1QK1nB/Q1b4q/R1RbkQ1q/Q2b4/1Q1r3r/bB5b/2RQ4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 b4 a5 g4 c5 d4 h4 b6 f3 g6 f6 g5 c4 b5 h3 b7 h2 b6 c3 g7 f2 g6 c2 Na3 a4 Nf3 Nh6 g8R Qd7 g7 Qc7 Nb5+ Ke7 d6+ Ke6 d7 a3 d8Q a2 d5+ Kf7 d6 Ke6 d7 Qd6 Bb2 c1B Ne5 Ra3 Nc6 Be3 Nba7 Bd4 e3 Nf5 Bd3 Be7 Qf8 f1B d8Q Nd7 b8Q Bb7 Qbc8 Ba8 b7 Rh3 b8Q Qc5 Qbb7 Bd6 Rc1 a1Q Nb8 Qb6 Bb1 Bb5 Rc5 Rd3 Rh8 Bf4 Rh5 Qaa5 Qa4 Bc4 Rc1 Ba2 Qf7+ Kd6 g8Q Ng7 Qfc4 Bfe5 Qa6 Bg3 Qgb3 f5+ Kf3 f4 Kg4 h1B Kg5 f3 e4 f2 Kg6 f1B Kf7 Qb4 Ra5 Bfg2 Rhc5 Bh2 Bc2 Nf5 Ke8 Qc4 e5+ Ke6 Bb1 Bc6 Bc2 Qd5 Bb1 Nh6 Bc2 Kf5 e6 Ke5 e7 Nf8+ Qdd7 Nf5 Bb1 Qb4 Kd8 Ng7 e8Q+ Kf6 Qe1 Qd2 Qf1+ Ke5 Qfd1 Qh6 Ke7 Be4 R5c2 Qb5 Rc5+ Bed5 Bc2 Rd2 Bh7 Qe2 Qg4 Rdd3 Qcd7 Qf3 Qg6 Qfh5 Qgf5+
2r2k1r/1RrR3B/r1rNr3/2R2Knb/1RBq2Q1/B1nR1N2/2RQ1q2/b5R1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Kf3 c5 Kg4 a5 b4 h6 f4 e4 d4 e3 b6 a4 b7 c4 d6 c3 d7+ Ke7 b5 a3 d5 h3 b6 c2 d6+ Kf7 f6 h2 f5 e2 Nd2 e1R Ne4 a2 Qd2 Nc6 b8R Qe7 d8R Nb4 d7 Ba6 b7 Bb5 Bc4+ Nd5 Ba3 c1R Nf3 Bg7 Rg1 h1R g3 Rc3 Rc1 a1Q Rc2 h5+ Kg5 h4 g4 Qe8 Nd6+ Kf8 f7 h3 Kg6 h2 g5 Ngf6 Rbc8 Rce3 b8R Nc3 Rb7 Rc1 Rc5 Ra6 Rdb8 Bc6 d8R Re6 Rdd7 Qb2 Rb4 Qd8 R8b7 Nh7+ Kh5 Na4 g6 Ng5+ Kg4 Qa2 Kf4 Ba1 Kg4 Nc3 Kf4 Kg7 Kg4 Rhe8 f8R+ R8e7 Rf7+ Kg8 Rh7 Kf8 f6 Qb6 Rd8+ Be8 Kf5 Rc7 Rhd7 Rc8 f7 Qb2 Rd5 Qf2 Rd3 Qd4 Rdc7 Qa2 Rc5 Rcc6 Rdd7 Rc8 Rg4 Rhd1 Rg2 h1R Rg1 Rh8 Rd8 Rc7 g7+ Ke7 g8B Kf8 Bh7 Rde1 Ne4 Rec6 Nd6 Re6 Rd7 Qb2 Ra4 Qb6 Rb4 Qf2 Rcb5 Qbd4 Rc5 Rc8 Rcb2 Ra7 Ra5 Nce4 Kf4 Raa6 Rab5 Rc3 Rc2 Kg7 Ra5 Rcb6 Rd5 Kf6 f8Q+ Bf7 Bb3 R3c7 Rdc5 Rbc6 Qh6+ Bg6 Qh4 Bh5 Bc4 Nc3+ Be4 Bf7 Qg4 Kg7 Ra7 Kf8 Rab7 Qd5 Bh7 Qdd4+ Kf5 Be8 Rd1 Bh5 Rg1
q1n3R1/NR1r2Bn/r1Q3QN/Q5r1/7n/r1QQ3b/1qQ1KQ1B/k1b1nB2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 g5 e5 b6 a5 b5 a4 f6 a3 b7 h3 f7 h4 f5 a2 g6 c4 f6 c3 b6 e4 g7 h2 Ne2 e3 Rg1 h1N Qc2 h3 Na3 h2 Bb2 Be7 f8Q Bf5 f7 Bh3 Ng3 e2 Rb1 a1R Qe8 Rh5 f8Q Ra6 Qf2 Nf6 g8Q Nbd7 Qgg6 Rg5 b8Q+ Qc7 b7 Nb6 Qh8 Nc8 Qa8 Qb6 Qhg7 Bf8 Qh8 Bh6 b8B+ Kd7 d6 Ke6 d5+ Ke5 Nf5 Ng3 Bc7 h1Q Nb5 R1a3 Na7 Qb4 Ba1 Qb2 Qc6 Qg2 Q2a4 c2 d7+ Nd6 d8Q c1R+ Qd1 Rc2 Qc1 Rd2 Q1c2 Qf3 Qda8 Rdd3 Qhc8 Nh7 Qh8+ Ke4 Qhc3 Qg2 Qd8 Nc8 Bd6 Qf3 Qda5 Qg2 Ng7+ Nf5 Bh2 Qb8 Rb7 Qa8 Qgd6 Nh4 Nf5 Qg3 Qg6 Qe5 Qa2 Qf6 d6+ Rd5 d7 Qd4 Qcb2 Kd3 d8Q Rd7 Qbc1 Qb6 Bg7 Qb2 Q1c5 Rh5 Qcb4 Bc1 Nh6+ Rf5 Qcb6 Kc2 Qbc6+ Rc3 Qac4 Kb1 Rg2 Ra3 Qc2+ Ka1 Qbc3 Rg5 Rg3 Rc7 Qdd3 Re7 Rf3 Rc7 Rf8 Rd7 Rg8 Be3 Qff3 Bc1 Kf2 e1N Ke2 Rc7 Qfe3 Rd7 Qf2
3n2N1/2KRn1B1/B2R1B2/1bQBNqrR/B1B4b/k3r3/2q1rbB1/r1b4Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 Ke3 g5 Kd4 d5 b4 a5 e4 f5 c4 g3 h4 g4 h5 f4 c6 a4 Kc5 a3 c7 d4 Kb6 g2 h6 g3 c5 a2 h7 d3 c6 d2 e6 Kd6 e5+ Kd5 e7 f3 e8B f2 e6 Ra3 e7 Nf6 Bf7+ Kd6 e8B Bg4 B7c4 Ne4 Nf3 g1B Ne5 g2 Rh5 Bh3 Nc3 Bh6 Bb2 Bh2 Nd5 g1R Ne7 Bg5 Ng8 Qd7 c8B Nc5 c7 Nc6 Bb7 Ne7 c8B Bh4 Bbd5 Bf4 Bfg2 f1R Ba6 Re3 Qc2 Rfe1 Rd1 Qf5 Ba1 Ne6 Kb7 Ref1 b6 Bfg3 Ba4 Bf2 b5 Kc5 Kb8 Kb4 b7 Rfe1 b6 Nd8 Kc7 R1e2 b8Q Ka3 b7 Rge1 Bd4 a1B Qa8 Bb2 b8R Bc1 Rb6 Bg4 Rd6 Bf3 Nf6 Rg8 h8B Rg5 Ng8 Be4 Bg7 Bd3 Ng6 Rh1 Bdf6 Rf1 Ne5 Rg1 Rf1 d1Q Qc6 Qd2 Rd1 Qc3 Qb1 Qc2 Qbb7 Bb2 Rd2 Ra1 Rd7 Bc1 Qb1 Bb2 Qh1 Bc1 Qc5+ Kb2 Ba8 Re1 Bf7 Bb5 R2d6 R1e2 Bae4 Rea3 Bc4 Rae3 Qc6 Ka3 Bed5 Bfg3 Qb6 Bf2 Qc5+
1K2bN2/R1N5/3knB1b/rQrNb2N/NNB1q2n/4b3/1Q2RpbN/3r1Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 a5 Ke5 f5 e4 g5 d4 g4 b4 f3 h4 g3 d6 f2 h6 c4 d5 g2 h5 a4 b6 a3 b7 c3 b5 f4 b6 a2 h7 c2 h6 f3 Bb2 c1B Nc3 Bg5 Bc4 f1B Rh2 Qc7 Na4 Na6 b8N+ Ke8 b7 Nb4 Nd7 Qc5 b8Q Bd2 Ndb6 Be2 d7+ Ke7 d8N Be1 Ne6 Bf2 Nf4 Ra6 Qf1 Bh4 Nh5 Qe3 d6+ Ke8 d7+ Ke7 d8N Bf2 Nd5+ Kd7 Bd4 Bb7 Nc6 Nc2 Ncb4 Ra5 Bc3 Bc6 Qb5 Ne7 Bd4 Rg8 h8Q Nf5 h7 Rg5 Qf6 Bh6 h8N Qd3 Ng6 Be3 Bb2 Ncd4 Nf8+ Ke8 Qg7 Nh4+ Kd6 Ne6 e5 Qe4 Qh8 Kf7 Bc3 Be8 Bb2 Nd8 Kc7 Ne6+ Kb8 Bd1 Rh3 f2 Nf3 g1R Nh2 Bc2 Re1 a1B Re2 Bd2 Ra3 Be3 Qg2 Rd1 Qf1 Qf5 Bd4 Be4 Bc3 Bg2 Bb2 Nc5 Bd4 Qe4 Qf6+ Kg8 e6 Re5 e7 Ne6 Qh8+ Kf7 Bc3 Rf5 Bf6 Bad4 Ndf4 Rc5 Nfd5 Bd7 e8N Be5+ Nec7 Be8 Bg5 Bd6 Qb2 Be5 Ndf6 Ke7 Nfd5+ Kd6 Bf6 Qg6 Ra1 Qe4 Nac3 Ra6 Ra5 Rac6 Ra8 Ra6 Ra7 Ra5 Na4
r1B2R1Q/1p1bN1nQ/2n1R3/2N1nN2/1NR2N1N/1rN1q1k1/bB1n2nb/7K b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 h4 Kf6 d4 e5 f4 c5 Kf2 g5 Kg2 c4 a5 e4 a6 b3 h6 b2 h5 c3 a7 c2 d6 e3 h7 e2 d7 g4 h6 g3 d5 Bd6 Nc3 b1B Nh3 Qa5 d8N Bc7 d6 Qa2 d7 Nc6 Ne6 Qb3 d8N Qc4 Bb2 c1N Nc5 Bb8 Ra6 Bc7 Qd7 Qb3 Nde6 Ba2 Nd4 Rb8 a8N Bd6 Nc7 Be7 N7d5+ Kf7 f6 Kg6 f7 Kh5 f8R Kh4 f5 Kg4 Nhf4 Bd6 Nb4 Nge7 f6+ Nf5 f7 e1N+ Kg1 g2 Rh4+ Kg3 Qe7 Rg8 h8N Be6 h7 Ng7 Nhg6 Bd7 h8Q Ra8 Bc4 Ncd3 Be6 Nde5 Nf5+ Kf3 Kh2 g1N Kh1 Ng2 Rg4 Kf2 Ngh4 Ngf3 Rb6 Nd2 Ra6 Be8 Bc8 Bb8 Qc7 Bd7 Rb6 Nd4 Re6 Ndc6 Nfg6 Qa3 Nge7 Qa7 Rc4 Qb6 N5a4 Qe3 Nc5 Ra3 Rd8 Re8 f8N Rb3 Nfg6 Rf8 Nf4 Rg8 Nh6 Kg3 N6f5+ Kg4 Nc2 Ne8 Neg6 Nef3 Nfd3+ Kh3 Ncb4 Rf8 Re5 Be6 Qch7 Bd7 Nge7 Ng7 Re6 Bh2 Nf4+ Kg4 Nh6+ Kg3 Re8 Rf5 Nca6 Ra5 Rf8 Nfe5 Nc5 Ra8 N6f5+
1NN2nRQ/r2b2KN/4N3/b1N2bNq/2pQ4/1B1r3q/RR1nb1NB/kb6 b - - 0 1 illegal: No possible last move, all moves rejected
bb3Nn1/1rbQB1K1/N2BqQ2/r5Qk/1Q2p1q1/2R3Q1/Q2r1nb1/R4BQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Ke4 h5 f4 a5 g4 c5 b4 c4 d4 c3 g5 c2 f6 Kg6 b6 a4 b5 h3 f5+ Kf7 g6+ Ke8 f7+ Ke7 b7 Kf6 d6 h2 d5 h4 g7 a3 b6 a2 d7 h3 d6 Na6 b8Q Ne7 g8Q Ng6 b7 Nf4 Nf3 Nd5 Nc3 Ra7 Na4 Qe7 d8Q Nab4 d7 Nd3 Ba3 c1B Nh4 Bf4 Ng6 Kg5 f6 Qe6 Nc5 Bd6 f8B Ne7 f7 Bc7 Na6 Qg4 Bc5 Kh5 Bd6 Rh7 Rg1 h1R Rg3 h2 Qe8 Rg1 d8Q Rg2 Qed7 h1B Qa8 Rg7 b8Q Rd2+ Qf3 Bg2 Qb4 Bb8 Qdb6 Rb7 Qg1 Rb5 Qd5 Ra5 Q5e6 Bb7+ Qd5 Nf5 Bfe7 Nh6 f8Q Ba8 Qf6 Rh7 Qgd8 Ng8 Nf8 Rf7 Rd1 a1Q Rc1 Qa2 Ra1 Rb5 Qda5 Qb3 Qa2 Rb7 Qdc5 Rg7 Qd5 Rg5 Qda5 Qf7 Qad8 Qg6+ Kd5 Rf5 Ke6 e4 Qda5 Qh6 Kf7 Nf2 Qfa3 Rfb5 Rc3 Be5 Qad8 Ra5 Q3b3 Qhf4 Q3a3 Qe6+ Kg7 Qf3 Rc7 Qff5 Qg3 Qh3 Rc3 Qh4 Bc5 Bec7 Bcd6 Qhg4+ Kh8 Nd3 Q8e8+ Qf7 Qdb5+ Ne5 Qed7 Qfe6 Qbb6 Nd3 Qbe3 Nf2 Qef4 Qh3 Kg7 Qhg4+ Q4g5+
1rR1n3/NQ1rN1b1/3N1nBq/n1NN3N/Qqp3b1/3Qn3/NB2bk2/K2R4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 Kb2 e4 b6 a4 b5 e3 g5 c4 b7 e2 g6 e1N b6 h3 g7 h4 f6 h2 f7 h3 f5 Rh4 f6 Ne7 g8N Na6 b8N Bg7 f8N Nf5 f7 Ne7 b7 Ra7 Nc6 Qe8 b8Q+ Nc7 Nd7 Ra8 f8N Nf3 Ndf6 Ra5 Ne6 Ne1 Bd3 Ng2 Na7 Rh8 Nc3 Qf8 Nge2 Ne3 Nc5 Bg4 Qb7 Ne8 Nf4 a3+ Ka2 Rh7 N4h5 Rb5 Bb2 Rb4 Rg1 h1Q Qa4 h2 Rgd1 Qe1 Be4 h1B Bg6 Bhf3 Kb1 Be2 Na2 Nc6 Ne7 Ne5 Qc8 Nd7 Qa8 Kc7 d6+ Kb6 Qh1 Rb5 d5 Qb4 Qe4 Bh8 Qh1 Qh6 Qg2 Rf7 Qf3 Bg7 Qg2 Nf8 d7 Nh7 d8N Bc8 d6 Bcg4 Nf5 Re7 Ndc6 Rd7 Ng8 Nhf6 Nce7 Rb7 d7 Rb8 Ne4 Rd5 Nfd6 Rd3 Nec3 Kc5 d8Q Kd4 Qb7 Rd2 Ned5 Rd3 Nge7 Rd2 Nce4+ Kd3 Nac3 a2+ Kc1 Kd4 Rb1 a1N Na2+ Kd3 Qdd7 Bf1 Nc5+ Ke2 Qd8 Kf2 Qdd7 Bfe2 Qf5+ Bef3 Qe4 Be2 Qd3 Nac2 Ra1 Nd4 Kb1 Nc6 Nac3 Bgf3 Ra2 Na5 Ka1 Bg4 Ra3 Rd8 Na2 Rb8 Rb3 Qc3 Rb6 Qb4 Rc6 Nd7 Qdb3 Be5 Nc7 Qh8 Ndf5 Bg7 Qba3 Rd6 Qd3 Ndf6 Ncd5 Rd7 Nd6 Qh6 Rc8
BQ3BKB/4kBB1/R2R4/pq1rn2b/1Q3q2/rbQ2B2/2N2b1N/n3qB1b b - - 0 1 illegal: No possible last move
QQqb2N1/3QQ3/6p1/n2n2Rk/R4r2/K1Q4r/1BNRBn2/1QqQnb1r b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kf7 d4 c5 Kd2 a5 Kc3 e5 Kb3 g6 f4 e4 d6 c4+ Ka3 e3 b4 g3 f6 c3 b6 c2 b7 a4 d5 e2 f5 e1N d7 g2 h5 Nf3 h6 Bc5 h7 Qe8 d8Q Bd7 d6 Ne5 Bb2 c1Q Nh3 g1R Ng5+ Kf8 f7 Kg7 Be2 Bf2 b5 Qf8 b6 Ra5 Ne4 Bh4 Nf6 Bg3 Rh4 Nbc6 b8Q Rh1 b7 Nge7 Rg4 Kh6 Ng8+ Kh5 f6 Nd3 Qdc8 Qe8 f8Q Bh4 f7 Nd5 Qe7 Nf2 f8Q Rc5 Qa8 Na5 b8Q Bb5 d7 Rc4 d8R Rf4 Qff5+ Bg5 Qcb7 Ba6 Rd6 Qec8 Qfd7 Bc4 Qe4 Bd8 Qee7 Nc3 Rd2 Nd5 Nc3 Bd3 Nb5 Rh3 Nd4 Bb5+ Ka2 a3 Nc2 Bd3 Bf3 Bf1 Be2 Rh1 Qb6 Nb7 Kb3 a2 Ka3 Na5 Nh6 Re8 h8Q Rg8 Qc3 Rh8 Ng8 Rh7 Rb1 a1N Qbb4 N1b3 Ra1 Nd4 Qbb3 Nf3 Qa2 Ne1 Qb1 Nc6 Kb3 Rh3 Ra4 Na5+ Ka3 Rh1 Qed6 Re7 Qdf6 Re3 Qfe7 Reh3 Rg5+
1KB5/4r1nN/3N1pnr/R1R1RQq1/b1R2R2/2bkRn1R/Qn5b/2BqQ3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 h4 a5 e4+ Kb4 b6 g5 h6 f3 b7 a4 d6 g4 d5 f2 h5 c4 h7 g3 h6 a3 d7 a2 d6 c3 Nh3 g2 Ba6 f1Q Ng5 g1B Qe1 Ra7 Rh5 Bf2 Nd2 c2 Nc4+ Kc5 b4+ Kc6 b5+ Kc5 b6 Qc7 d8R Nf6 Re8 Rg8 h8R Qe2 h7 Qd8 d7 Qg4 Nd6 Qc7 d8Q Bd7 Qc8 Ba4 Qf5 Rg6 Rc8 Bg7 Rhf8 Qe2 h8R Bg1 Nh7 Rh6 Rh4 Qd3 Rf4 Qd2 Rfe8 Bh2 Re6 Kb4 Re7 Qd8 Rc4+ Kb3 Rec7 Qe3 R7c5 Nh5+ Kd5 Nd7 b8R Be5 b7 Bc3 e5 f6 e6 Ng7 e7 Nf8 e8R Ng6 Re5 Qg3 Rce4 Qg5 Rbc8 Qd7 b8Q+ Rb7 Bb2 c1N Qa8 Nd3 Bc1 Kc2 R8c6 Ra7 Bc8 Nb2 Rcc4 Qd8 R6c5 Re7 Qa7 Kd3 Qa6 Bb3 Kc6 Qd7+ Kb6 Ba4 Qa5 Qd8+ Ka6 Re8 Ka7 Re7+ Kb8 Qd7 Rb1 a1N Qa6 Nc2 Ra1 Nd4 Ra2 Bb3 Raa5 Ba4 Qb6 Ne8 Qb3 Ng7 Qa2 Nf3 Ne8 Rh4 Nf8 Kc2 Rh7 Qd3 Nd6 Qd1 Rh6 Kd3 Nh7 Rg4 Rh3 Rh4 Ne8 Rh5 Nd6 Rh6 Re3#
2r1n3/1Q4Rr/1R1r4/BR3rnn/RRN4q/QRb2bk1/B1Q2pnN/3R1K2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 h4 Kd6 d4 g5 e4 c5 h6 a5 h7 f5 h5 c4 b6 a4 h6 f3 b5 c3 b7 g4 e5+ Ke7 b6 g3 d6+ Ke6 d7 g2 d5+ Kf7 e6+ Kg6 e7 f4 e8Q+ Kg5 d6 Kg4 Bc4 c2 Rh3 a3 Ba2 Ra4 Bd2 c1R Ba5 Nf6 Qe4 Rd4 Nd2 Ne8 Nc4 Bg7 Qc2 Rf8 h8R Rf5 h7 Rdd5 Kf2 Bc3 Qdd3 Qg5 d8R Nd7 b8R Ndf6 b7 Nh5 d7 Rd6 Rf8 Qh6 h8R Qh7 Bb3 a2 Rf6 Qe7 Rb1 a1R Rh7 Ra3 Ra8 Qe4 b8R Bb7 Ba2 Bc6 Bc7 Ra7 Ba5 Rc7 R1b5 Bb7 Ne2 g1N Ng3 Qe7 Re6 Qh4 Re4 Bc6 R8b6 Rc8 Ra7 Re1 Rd4 Re7 Kf1 f2 Rf7 Nf3 Rg7+ Ng5 Re4 Ba1 Qa3 Bc3 Rd4 Bf3 Rd1 Rcc5 Rdb8 Rc8 d8Q Ref7 Qd7 Re7 Rg8 Rh7 Rg7 Bh1 Ke2 f1N Qb7 Ne3 Nf1 Bd5 Raa6 Ng2 Rhd3 Bc6 Rd4 Bd5 Nh2+ Kg3 Kf1 f3 Rb3 f2 R6b4 Rc5 Rab6 Bf3 Ra4 Rcc6 Rd5 Rc7 Rdb5 Rc8 R5b4 Be4 R6b5 Rd2 Qe7 Bf3 R8b6 Rd6 Qb7
KR2b1R1/Q1b1Q1n1/Q3p2Q/B2Bk1q1/2pN2q1/N1Q4n/q1Q1Br2/r4Qb1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 b4 a5 f4 a4 g4 c6 g5 a3 g6 h3 g7 h4 b6 h2 b7 h3 b5 a2 f6 Qc7 b6 Nd7 b8Q Ne5 f5 Bd7 f7 Ra6 f6 Bf5 b7 Bh7 Nf3 Ra5 Qa8 Ra7 b8Q Nc4 Na3 Bc2 Be2 Bb3 Rg1 h1Q Rb1 h2 Qc2 Ra4 Qa6 Qg2 Qba7 Nh6 g8B h1Q d3 Ng4 Bd2 Qd8 Ba5 Bh6 f8Q Qh5 f7 Bf4 Qh6+ Qg6 f8Q a1B+ Qc3 Nf2 Be6 Bc2 Rb8 Nh3 Qf7 Qgg8 Ke4 Qf2 Nd4 Ne3 Rg6 Qg1 Qff8 Bg3 Qf1 Nf5 Rg4 Qf7 Rg7 Rf8 Rg8 Qg6 Bf7 Qb6 Be6 c5 Bf7 c4 Be6 Kc5 d6 Qg5 d7 Ng7 d8Q Bc7 Bd5 Rf2 Qf8 Qh2 Qc1 Bb3 Q1c2 Qhg1 Qf4 Qb1 Qfc1 Qa2 Qf1 Bb2 Qg6 Bc1 Qh6 Be3 Ne6+ Kd6 Bb7 Bf4 d4 Rh2 d5 Be3 Nb1 Rb4 Na3 Bg1 Bc6 Rf2 Nd4+ Ne6 Bb7 Ba4 Bc6 Rb1 Bb7 Kc5 d6 Be8 d7 Ng7 d8Q Rd1 Qd7 Ra1 Qde6 Qf6 Qf7 Kd6 Bc6 Qb7 Qf8 Qc8 Ba8+ Kd7 Kd5 Qf4 Qf7 Qd8 Qff6 e6+ Kc5 Qg3 Bd5 Qg4 Qf8 Qf6 Kb5 Qfg5 Qfb4 Bh5 Kc5 Ke7 Kc6+ Kf7 Kb7 Bg6 Qcd1 Kf6 Qdc2 Ke5 Qe7 Be8 Ka8
B1rq4/RQ2b3/n1BQR1pk/1n5B/4b1KR/3B4/BNpnrrBB/2N2r2 b - - 0 1 illegal: No proof kernel
n1nq2N1/b3N1kb/N1b5/1BN2p1R/5r1Q/2BqN1Qp/r5NK/Q2N1bR1 b - - 0 1 illegal: No possible last move
r1Q1nQ2/N3NbQ1/rq1rpR1B/Q5Q1/5RQ1/nQ1kpB2/1K1p1b2/1b1B4 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Kg6 b4 Kf5 f4 h5 g4+ Ke6 b6 a5 f5+ Ke5 b7 d5 f6 a4 b5 d4+ Kb2 e6 c4 h4 f7 d3 g6 Kd4 g5 h3 c6 h2 c5 Qa5 g7 Be7 f8Q Qa7 b6 Bd8 g6 Rh4 c7 Bf6 c6 Rh8 Qg4 Bh4 Na3 Rh7 Nb5+ Kc4 Bh6 Rh8 Ne2 d2 Ned4+ Kd5 Nf5 e3 Ne7+ Ke5 Be2 Bf2 Raf1 Na6 b8Q Bd7 c8B+ Nc7 b7 Nf6 g8Q Ne8 g7 Qb6 Bd1 Rh7 Qg5+ Ke4 Qa7 Kd3 b8Q Rh8 Rhg1 h1B Qa5 Be4 Bb7 Bf5 Rg4 a3+ Kb3 a2 Kb2 a1R Rf4 Ra6 Qgf7 Ra4 g8Q Rd4 Q7g7 Rd6 Qg4 Bg6 Ba8 Bf7 Q7g5 Bc8 Qg8g7 Bb7 Rf6 Qc5 Na7 Nb5 c7 Be4 c8Q Na3 Qbb4 Qb6 Bc6 Bd5 Ba8 Ba2 Baf3 Bb1 Bb7 Bg3 R1f4 Bf2 Bbf3 Nc7 Qfg8 Rh7 Qd7 Rh8 Qa8 Rd8 Qe8 Rb8 Qef8 Ne8 Qb7 Ra8 Qc8 Nb5 Qba4 Na3+ Qb3+
2QK1b2/2r5/B4N1R/p1qB1RN1/2B1B2B/r3qn1Q/nb1p2pN/kB3bB1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 a5 h4 f5 b4 g5 e4 g3 b6 d5+ Kb5 d4 c4 f4 h5 g2 h6 d3 c6 f3 h7 f2 b7 g4 c5 g3 c7 Qd6 c6 Bd7 Kb6 Be8 c8B+ Qd7 c7 Bh6 b5 Na6 b8B Bf7 Bb7 Ne7 c8B Nc7 Nc3 Ng6 Qb3+ Ke7 e6 Kd6 e7 Ke5 e8B Kd4 e5 Bg8 e6 Bd2 e7 Bc4 Ne4 Qf5 Ba7 Be3 Bf7 Ne5 e8B Bh6 Bg5 d2 Nf6 Na6 Qf3 Rg8 h8N Bf8 Rh6 Nb4 Bh4 Na2 Bfe6 Bd3 Kc7+ Kc3 b6 Kb2 Kd8 Qf4 Be2 f1Q Bg6 Qc1 Nf7 Rg7 Bb3 Rb8 Ng5 Ba6 Qd3 Re7 N1f3 g1B Nh2 g2 Qh3 Qc2 Rf1 Bd4 Rf3 Qc1 Bb1 Ka1 B7e4 Bb2 b7 Rc7 Bg1 Qe3 Bbd5 Qcc5 Rf5 Nf3 Bf1 Ra8 b8Q Bb5 Qb6 Rb8 Qe6 Bd3 Be2 Rb3 Ba6 Ra3 Qc8 Bb5 Bd1 Bc4 Bb3 Bf1 Bbc4
N2q2b1/2RNr1N1/n2b1BQ1/2pp2N1/B2B1k2/3p1R1p/1nQb4/1N1rNN1K b - - 0 1 illegal: No proof kernel
B1NBK2R/qQN5/2R4r/1N1r2Nr/1rk1B1N1/2n3R1/2p2Rr1/Rqb4n b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 Ke6 a5 Kf7 e5 d4+ Kb4 b6 c5 f6 h4 b7 f3 g6 h3 g5 c4 g7 h2 g6 a4 d6 e4 d7 e3 d5 a3 d6 a2 Na3 e2 Nb5 e1Q Bg2 f2 Nf3 f1R Qb3+ Kc5 Rg1 h1R Bg5 c3 Nh2 c2 Ng4 R8h7 Be4 Qd1 Rg3 Nc6 b8R R1h5 Rb6 Qb8 d8N Re1 d7 Qa7 Ke8 Qb8 f7 Nh6 g8B Rh8 g7 Bd6 f8R Nb4 Rf2 Rh7 Bd5 Ra4 g8N Rg1 Ne7 Rg2 Nc8 Qb1 Nf7 Nf5 d8R R7h6 Ba8 Bf4 Bf6 Qa7 Ng5 Ra5 Qf3 Nd5 b4+ Kc4 Rbd6 Qc5 Rc6 Bc1 Be7 Nfe3 Qf7 Nf5 Bf6 Ra4 Qb7 Nc3 Rdd3 Ne2 Bd8 Nc3 Rd7 Ra5 Rh7 Ra4 Rh8 Ra5 Rgf3 Ng3 Rd3 Nh1 Rg3 Ra6 Nba7 Ra5 b5 Ra4 b6 Rb4 Nb5 Rd6 Qg7 Rd5 b7 Rh6 b8N Rh5 Rd6 Qa7 Qb7 Qb3 Rb1 a1R Na6 Ra5 Nac7 Ra6 Ra1 Qb1 Rd7 Rf6 Rd6 Rfh6 Rc6+
1B1r2Nk/4Q2p/2RB2Bq/1rb2KR1/1B2N3/2N1q3/B1RnRpq1/2b3qR b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 Bh3 g5 Bg2 f5 Bf1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Ra5 Ne5 Ra2 Nf7 Ra1 Ng5 hxg5 Be7 Rh2 Bd6 Rh1 Bf8 Kf2 Kf7 d4 Kg7 e4 a5 b4 c5 e5 c4 f6+ Kg6 d6 a4 e6 c3 f7 Kg7 d5 c2 g6 a3 d7 a2 d6 Be7 f8B+ Kf6 b6 Ra3 b5 Rc3 b7 Ra3 b8B Qc8 d8R Ra5 d7 Bd6 g7 Ne7 g8N+ Kg6 b6 Ba3 b7 Re5 Bc4 Re3 Nd2 Re5 Re8 Rf5 d8R Qc6 Rd5 Nc8 e7 Nd6 Qe1 Bc5+ Qe3 Qb6 Ba3 c1B Ne2 Rh5 Bb3 Nc4 Ne4 Nd2 N2c3 Qf6 Rb1 a1Q Bb4 Qa7 Rb2 Qc6 Rc2 g3+ Ke1 g2 Kf2 Kf7 Ba2 Qh6 Rc8 Qab6 Rg5+ Qbe6 Rc6 Qb3 Ke1 f2+ Ke2 g1Q Kd3 f3 Qe1 f1Q+ Qe2 Bd4 B4d6 f2 e8B+ Ke6 Bg6 Qfg2 Qe3 Bc5 Qe1 B5a3 Ke3 Bb4 Kf4 Bc5 Bf5+ Kf7 Bfe7 Bb4 Bg6+ Kg7 Kf5 Bc5 Qe2 Bb6 Bb4 Bc5 Bed6 Qa3 Bbc7 Qa7 b8R Qb6 Re8 Qa7 Nd1 Qa3 Bb8 Qe3 Ngf6 Rf8 Ndc3 Kh8 Re7 Rd8 Ng8 Rc8 Qa6 Rd8 Qa7 Q1h2 Re5 Qhg1 Qe7 Qgh3+ Kf6 Qhg2 Rg4 Ba7 Ng3 Qd3 Re2 Rb5 Nge4 Bc5 Rg5 Qe3 Kf5
K4QN1/b2b1B1N/kB6/3pNnbR/2qRBR2/2N5/2b1NppR/r1R2r2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Nc6 Kd2 Nf6 Ke1 Na5 bxa5 Ng8 Kf2 g5 Kf3 f5 c4 f4 Ke4 g4 Kd5 a3 h4 d3 e4 f3 a6 d6 Kc6 a2 b6 g3 h6 d5 c5 d2 a7 g2 h5 f2 h7 Bh3 Kb7 Kd7 e6+ Ke7 h6 Bf5 e5 Bd3 c6 Nf6 c7 Bb5 c8N+ Ke8 e7 Kd7 e8B+ Ke6 Ne7 Nh5 Ne2 Nf6 Rh4 Ng8 Rf4 Nf6 Nbc3 Bc4 Ng8 Be7 Bf7+ Kd7 e6+ Kd6 Rd4 Bf8 e7 Kc5 e8N Rc8 a8R Bd6 Ra4 Ne4 Nef6 Bb8 Ka8 Qc7 b7 Ba7+ b8N Kb6 Qb3+ Bb5 Qb4 d1B Qf8 Qf4 Be3 Nd6 Rc1 a1B Rac4 Rc5 Nc6 Ka6 Ne5 Bd7 Rb4 Qh4 Rf4 Ra5 Bb6 Bc2 Rbd4 Qg4 Ng1+ Rb5 Bd3 Nf5 Be4 Rb1 Nge2 Bb2 Ne7 Rg8 h8R Ra1 Rh7 Rh8 Neg8 Ba3 Rg7 Bd6 Rg5 Be7 Nh7 Bf6 Rh5 Bg5 Nhf6 Qg3 h7 Qd3 Rh2 Qc4 Nh6 Rg8 h8R Rg7 Rh5 Rh7 Nhg8 Rh6 Rh2 Rh3 Rh5 Rd3 Nb5 Rd1 Nbc3 Rf1 Nh7
1k1r1B2/pnR4N/2QN2RR/5R2/pB1p3p/rBp3n1/N1nb3K/2B2BR1 b - - 0 1 legal: proof: e4 c5 a4 b5 h4 bxa4 b4 g5 hxg5 f5 exf5 c4 b5 Qa5 b6 Qa6 d3 Qa5+ c3 Qb4 cxb4 c3 b5 Bb7 Ke2 Bd5 Ke1 Bc4 dxc4 Bh6 Nd2 Bg7 Nb1 Bf8 f4 Kd8 Kf2 Kc8 Kg3 h5 b7+ Kc7 c5 e5 g6 d5 b6+ Kd7 f6 d4 f5 e4 g7 e3 f7 e2 f6 e1N c6+ Kd8 c7+ Kd7 c8R Nc2 Rc7+ Kd8 Na3 Nh6 g8B Nb4 Nc4 Nf5+ Kh2 Rh6 g4 Na2 g5 Ne3 g6 Bc5 f8N Be7 g7 Rh7 f7 Bf6 Qf3 Nc2 Nd6 Nab4 Qc6 Bg5 Ne2 N8a6 b8B Be3 b7 Nd5 Rg1 Rh8 Nh7 h4 f8B Nf4 Bb3 Nh5 g8R Bd2 R8g6 Nc5 R1g5 Ng3 Rf5 Be3 Ba3 Rg8 Nc1 Bd2 Na2 Rg7 Rh6 Re7 Bb4 Re1 Bg2 Re2 Rg1 Re1 Bf1 Ra1 Rg7 Rc1 Rgg6 Ra1 Qb6+ Kd7 Bc7 Rd8 b8R Nb7 Rc8 Bf4 Nc1 Ra3 Na2 Re8 Bd8 Bd2 Bg5 Rd8 Rc4 Nc5 Qb5+ Kc7 Qc6+ Kb8 Be3 Nb7 Rcc5 Be1 Bc1 Bd2 Qb6 Ka8 Rc7 Kb8 Qc6
1BN4K/3b1brB/2B1NnN1/2nNR3/N6Q/1Bb1b1rb/2RBkn2/2rq3R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kb4 g4 a5 d4 h5 d6 f5 d7 c5 g6 c4 g7 c3 d5 c2 g5 f3 g6 f2 b6 h4 b7 f4 d6 h3 Qg4 a4 Bc4 f1B Nf3 h2 Bd2+ Kc5 b4+ Kc6 b5+ Kc5 b6 c1R Ra2 a3 Bb3 Ra6 Nc3 Rh7 Rc2 a2 Na4+ Kb5 Nh4 Qc7 d8R f3 Re8 Qc6 d7 f2 d8N Bc4 Ne6 Nh6 Kf6 f1B g8N a1B+ e5 Bd7 g7 Bc5 Ne7 Bh3 g8B Qd5 Nc8 Be3 Ng6 Rg7 Qh4 Bc3 Bh7 Ra5 Re7 Na6 b8B Nc5 b7 Ra7 Re8 Rg8 Re7 Ng4+ Kf7 Nf6 Re8 Rf8+ Kg7 Rf7+ Kh8 Rg7 Nd8 Qf3 e6 Qd1 e7 Bf7 Ne6 Ra8 Bf4 Ra6 b8N Rd6 Na6 Rd3 Nac7+ Kb4 Re1 h1N Nd5+ Kb5 Be5 Nf2 Rh1 Bh6 Rd8 Rg3 e8B Be3 Bb8 Bc6 Rd6 Bd7 Ndf4 Kb4 Rd5 Kb5 Re5 Kb4 Bd5 Kb5 Bc6+ Kc4 Nd5+ Kd3 Ndb6 Rf3 Bd5 Rg3 Bb3 Bb5 Bc6 Ke2 Bg2 Bbe8 Bc6 Bd7 Nd5
2R1bBbR/2rq1r1N/k1B1Rn1B/4Brb1/5N2/3RB1Q1/R1nq3b/1K3n1N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 g4 Kc7 f6 Kb7 f5 a4 f7 c4 g5 h3 b6 e4 d6 h4 d5 a3 f6 e3 g6 a2 b5 c3 g7 h2 d7 e2 d6 e1B Ne2 h3 Ng3 Ra3 Be3 Ra8 Qd3 Rh6 Bg2+ Nc6 Qg6 Qc7 d8R Be6 d7 Rh5 Rc8 Bd6 d8R Qd7 f8N Bd2 f7 Rf5 Nh7 Nf6 g8R Ra7 Re1 h1N f8B h2 Rh8 Bg8 Beh6 Bg5 Re6 Rf1 Qd3 Rf5 Qe3 Be5 Kc1 c2 Nc3 Bef4 Nd5 Nd4 Kb2 c1R Qe5 Nf2 Nh1 N2g4 Qe3 Rc4 Qg3 Nc2 Bf3 Bd6 Nf4+ Rc6 Be4 Nge3 Kc1 Bb8 Kb2 Qd2 Rd3 Nf1 Bg2 Ka8 Bf3 Rf7 b7+ Ka7 b6+ Ka6 Be4 Bd6 b8B Rcc7 Bc6 Be5+ Rd4 Bd6 b7 Be5 Ba7 Bd6 Nf2 h1B b8B Bf3 Rd3 Bh5 Nh1 Bg6 Rc1 Bh5 Be3 a1Q+ Kb3 Qd4 Ka2 Be5 Kb1 Qd7 Re1 Rg7 Re2 Be8 Bd4 Rf7 Bba7 Bd6 Be5 Bc5 Rg2 Bg1 Be3 Bh2 Rb3 Qc3 Rd2 Qb4 Rd3 Qc3 Rb2 Qd2 Ra2+
2qB1NNb/5k2/1Nq1R1R1/n1R3Qr/8/2qB1b1N/r2qb1nK/N1R1BR1n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 c5 f4 h5 Kf2 e5 Kg2 a5 d4 e4 b4 h3+ Kh2 c4 d6 c3 g5 e3 f6 c2 f7+ Kd7 d5 a4 b6 h4 f5 e2 b7 e1Q f6 a3 g6 a2 g7 Ne7 g8N Qe6 b5 Qe8 b6 Ng6 Na3 Ne5 Qh5 Ra7 Bd3 Kd8 d7 Be7 f8N Nc4 f7 Bf6 Qg5 Rh5 Bd2 c1Q Nc2 Ne3 Be1 Nc6 b8N Ba6 b7 Ng2 Rb1 a1Q Rb6 Qa5 Na1 Qac3 Rb5 Q1d2 Rc5 Kc7 d8R Qc8 Rd6 Bh8 Rf6 Kd8 d6 Na5 Nbd7 Ra8 Nb6 Qec6 b8R Bc4 Bb1 Be2 d7 Ra7 Bd3 Ra6 Nh6 Ke7 Rb7 Nc4 Ra7 Ra2 Ra6 Na5 Ne6 Rb2 f8R Ra2 Rg8 Nf4 Nf8 Ng2 d8B+ Ke8 Bc7 Ke7 Rf1+ Ke8 Nf5 Kf7 Ne7+ Bf6 Rf4 Qe5 Bf2 Qf3 Nc4 Qc2 Re6 Qd2 Rg6 Qec3 Bd8 Qfc6 Nb6 Qb4 Rfc4 Bh8 Rc1 Qd4 Nf3 Qf6 Kg1 Qfc3 Be1 h2+ Kf2 h3 Kg3 Ne3 Rg1 h1B Ng8 h2 Rf1 Bg2 Ng1+ Bgf3 Nh3 h1N+ Kh2 Ng2 Be4 Bg7 Bb1 Bh8 Bd3
b2R1R1Q/1b2KN2/R1b4r/N6q/r1b1kR1n/B4n2/3B1nBR/b1n2NBB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 h5 b4 a5 d4 c5 g4 f6 g6 h4 b6 f3 g5 c4 g7 a4 b5 f2 b7 h3 b6 a3 g6 h2 Bg2 f1B Bd2 a2 Na3 c3 Nc4+ Ke7 d6+ Ke6 d7 c2 d5+ Ke7 Kf5 c1N e4 Rh3 e5 Raa3 e6 Rh6 Ne2 Nd3 Ng3 Be2 Nf1 Bf3 Na5 Kd6 e7 Ra4 e8B Nc6 b8B+ Qc7 b7 Nce5 Qe2 Nf2 Ba7 Qc5 b8R Bb7 d8B Ba8 Rb4 Qb5 Bc6 Ne7+ Kf4 f5 Kg5 f4 Kf6 Be4 g8R Nf5 Qh5 f3 Rc4 Nh4 Be7+ Kc7 Bec5 Bg7+ Ke7 Bh8 g7 Bb7 Re1 a1N Rd8 Nb3 g8R Nc1 Rgf8 Ba8 Re2 Bb7 Rg1 h1B Ba3 Bg7 Bae3 Qc5+ d6+ Kb6 Be8 Bec6 Rcf4 Kb5 Bd4 Qd5 d7 Bh8 Nb3 Kc4 Na5+ Kd3 Bb6 Qe4 Bf7 Qf5 Bd5 Bg7 Qe8 Qh5 Bbc5 Nh3 Bb6 f2 Ba7 Nef3 Re6 Bb5 Ra6 Ba1 Bb6 B5c6 Ba7 Qg4 Qh5 Ba8 Qe5 Bab7 Qh8 Qh5 Bdb4 Nd2 Bgf3 Bc8 Rde8 Ba8 d8N Bg2 Rh1 Bcb7 Rh2 Bh1 Nf7 Bg2 Ne3 f1B Rd8 Be2 Nf1 Bh1 Bg1 Nf2 Ng3 Ke3 Bc3 Bc4 Nf1+ Kd3 Bg4 Be4 Bh3 Bf3 Bg2 Be4 Bh1 Bg2 Be6+ Bgd5 Bd7 Ndf3 Bd2 Bdc6 Bh3+ Qd5 Rf5 Ke4 B3g2 Qb5 Rf6 Qh5 Rf4#
2N1KN2/2N1R2n/3b4/N1RRb3/n4B1n/1BrrqB2/1pkBb3/1N2BbbQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 b5 Kc5 Ke5 h4 Ke4 d4 e5+ d6 g5 f4 c6 a4 b3 d5 g4 h6 g3 h5 b4 a5 b2 a6 g2 h7 b3 a7 Bd7 h6 Qh4 f6 Bh3 f5 Qg4 f7 Qh4 f6 Be6 Bc4 Bc8 Ra5 Bd7 Nh3 Qg3 Bf4 Bg7 f8B Bg4 f7 Be2 d7 g1B+ Kd6 c5 d8R Na6 Kd7 Qe3 d6 Rc8 a8B+ Rc6 Be6 c4 Rc5 c3 Ke8 c2 d7 c1B Bb7 Bd2 Ng5+ Kd3 Qc1 Rc8 Bf3 e4 B8d6 Bd4 f8N Bb4 Bg3 Bdc3 Bdf4 Be5 Be1 Bf1 Bd5 Rc6 Nge6 Nf6+ Ke7 Rg8 h8B Nh7 Ke8 Rg3 Nc7 Rd6 Be6 Rd4 Bf7 Rc4 Rh2 Rc3 Re2 Ba3 Bd2 Bb4 Qe1 Kc2 Bf6 Rh3 Qh4 Rg3 Qh1 Ba3 Bh4 Bb4 Rb5 Bbd6 Rc5 Rh3 Bhe1 Rg3 Rd5 Nc5 Rc8 Na4 d8N Rd3 Nc6 Rh3 Nc3 b1B Na5 b2 Bg8 Ba2 Nb1 Bc4 Be6 Ng5 h7 Rc3 h8N Nh7 Rf2 Bce2 Nhg6 Bd3 Nh4 Bf6 Na8 Qc5 Bh5 e3 Nhg6 e2 Re5 Be4 Bb3+ Kd3 Rd5+ Qd4 Rcc5 Bf3 Rg2 Bg4 Beg3 e1N Ne7 Bge2 Bg4 Bfe5 Nc8 Nf3 Bge1 Nh4 Nc7 Rf3 Bh5 Re3 Rg7 Rh3 Ba2 Kc2 Re7 Rd3 Bf3 Qe3 Bb3+
B4rB1/K4n2/NB1B1b1R/N4Bq1/R1npr2R/Q1b1qb2/1bRR1Nkb/8 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 b4 e5 f4 g5 c6 a5 c7 a4 b6 d5+ Kb5 g3 c4 g4 c5 g2 h5 g3 c6 a3 h6 a2 h7 Nd7 b7 Ra3 b8R Ngf6 Rh4 Be7 Qa4 Bd6 Bc4 Qe7 Be3 Ng4 f6 Re8 h8R Rd8 f5 Bb7 c8B Bc7 f7 Qf8 f6 Nc5 Nh3 Kf3 Nf2 g1Q R8h6 e4 Bf5 g2 Nd2+ Kg3 Rc8 Nb3 Bb6 Qg7 f8B e3 f7 e2 Bd6+ Ne5 f8R d4 Bg8 e1B Nc4 Bc3 Na5 Nd2 Kc5 Rb3 b5 Qg5 Qa3 Nc4 Be4 Bb8 c7 Rb1 Bf3 Re1 Rd1 a1B Rd2 Bab2 Rf5 Ba6 Ba8 Re4 Ba7 Qe1 b6 Ne3 b7 g1B Kb6 Bf1 Nc4 Bg2 Bf8 Nf7 Ra5 Bf3 Ra4 Kg2 Na5 Bb4 Ka6 Bh2 Bb6 Be5 Be7 Bf6 Bf8 Ba7 b8N Rde8 Be7 Rf8 Kb7 Qe2 Na6 Qe1 Rb8 Qe2 c8B Qd3 Bf5 Qb3 Rc8 Bb8 Rd8 Bh2 Rc8 Qd3 Rc1 B4c3 Rcc2 Nc4 Bd6 Qde3 Ka7
BB5n/2B1N1kq/1br1qp1b/1N2B2Q/2N1R3/3N2K1/1b2R1BR/1nrb1b1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 h4 a5 b4 g5 d4 f3 e4 c4 h6 a4 b6 a3 d6 c3 b5 a2 e5 f6 d7+ Kf7 d5 g4 h5 c2 e6+ Ke7 b7 Ra4 b6 Rc4 h7 Qe8 d8R Qd7 h6 Rf4 Nh3 Rb4 Rh2 Qc7 Bg2 Qe5 Nc3 Qe3+ Kg3 Qd3 Nf2 Rb1 Nb5 Qe4 Bf4 c1Q Nh1 f2 Be5 Nd7 b8B f1B b7 Qc5 Bbc7 Qd6 b8B Nc5 Rd7+ Ke8 e7 Qe6 d6 Kf7 Qd5 Bg7 e8B+ Kf8 Rd8 Nb3 d7 Rc1 Rb1 a1B Rb2 Qg6 Re2 Ne7 Re4 Rg8 h8N Bb2 h7 Bh6 Nf7 Nd2 h8N Nb1 Nfd6 Kg7 Nc4 Qh7 Nf7 Ng6 Qc5 Ba6 Rc8 Nh8 d8N Be2 Bc6 Bd1 Ba8 Rf8 Nc6 Re8 Kh4 g3 Ne7 Rd8 Re2 Rd6 Re8 Rb6 Qd5 Rc6 Qf3 Nd2 Qh5 Nb1 Bd5 g2 Kg3 g1B Bg2 Bhe3 Bc3 Bd2 Nfe5 Bb6 Nd3 Bh6 Re4 Be2 B3e5 Bf1 Nc3 Bb5 Re2 Ba4 Nb5 Bc2 Rd8 Bb3 Rd4 Bd1 Rde4
b3BR2/3RK3/3R1N2/rn2B2n/Br1Nb1NQ/2B1b2n/k1p1R2R/n1bB3q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 h5 g4 c5 g6 f5 d6 a4 d5 c4 g7 a3 g5 f3 b6 f2 g6 f4 b7 f3 d7 a2 Ke6 h4 e5 c3 d6 c2 Nc3 Kb3 Nge2 h3 Ne4 h2 Qe1 Rh3 Nf6 Ra3 Nd4+ Ka4 b4 Rg3 b5 Na6 b8B Bb7 b6 Ba8 b7 Rg4 Be2 f1B Bd1 f2 Bb2 Bg2 Bc3 f1N Qh4 Nd2 Rb1 Qa5 d8R a1B d7 Nb3 Bc7 Be4 b8R Rf4 Ng4 Nf6 g8B Nh5 g7 Bb2 Bf7 Bc5 g8N Ba7 Be8 Qd5+ Ke7 Na1 e6 Bc1 Be5 Nc7 N8f6 Nb5 Rb6 Ra2 Rd6 Ka3 Re1 h1N Re2 Qb7 Rc8 Qd5 d8R Nf2 R8d7 Nh3 Bf7 Bd3 Nf3 Bc5 Rf8 Bb6 Ke8 Ng3 e7 Rb4 Be6 Bg1 Nd4 Bb2 Rh2 Qe4 Be2 Be3 Bb3 Nh5 Re1 Bbc1 Bd1 Qh1 Ree2 Bde4 Kd8 Bf3 e8B Bfe4 Bd2 Kb2 Ke7 Ra5 Ba4 Ka2 Bc3
1NrBb2N/5pBN/1RnpB3/2N2nK1/1bR1BR2/2Nq3b/rq3Qk1/1B1n4 b - - 0 1 illegal: No possible last move
r1q2B2/2b4k/1Qp1B1RR/3bR1p1/N1p1nb1n/B3R2K/3nr1NB/B2NR3 b - - 0 1 illegal: No possible last move, all moves rejected
2QN1n1B/3N2KN/k1n1Bp2/1RR1R1p1/1b2rp2/nb1r2q1/1B1p1R2/1BR2B2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 g5 Kg4 a4 Kf5 a3 h4 a2 b4 Ra3 c4 Na6 e4 Rf3 e5 d5+ e6 d4 c6 d3 c5 d2 h6 Qd6 b6 Kd8 h5 Qc7 b5 Bg7 b7 Qe7 b8R Kc7 h7 Qd7 b6+ Kd8 b7 Kc7 h6 Be5 Ne2 Bd6 Qc2 Nf6 Rh2 Rg3 Nd4 Rc3 Rf2 Bf8 Bb2 Rc4 Nc3 Qd6 Nd5+ Kd8 c7+ Ke8 c6 Nh5 Nf6+ Ke7 Rc1 Bd7 c8B a1N c7 Qb6 Nc6+ Kd6 Nd8 Ba4 e7 Kc5 e8B Qb3 Be6 Kb6 c8R Bb4 Rc5 Re4 Beb5 Re8 h8R Qg3 h7 Bb3 Bbd3 Ka7 Qc4 Nc2 Rf8 Na3 h8B Re7 Nh7 f6 Kg6 Rd7 Re8 Ng7 Bb1 Rd3 Qc3 Nc7 Kf7 Nf5 Re7 Nd4 Kg7 Nc6 Bc8 Bc2 Rd5 Na5 Ree5 Bb3 Qc2 Na8 Be6 Ka6 Rc8 Nb6 Rb5 Nd7 b8N+ Ka7 Qc3 Nf8 Nd7 Ka6 Qc7 Rc3 Qb8 Rd3 R8c5 Nc6 Qc8+
1r1Q3N/1b1rq1r1/RQ3BB1/nQB4K/4N1nQ/1p1q1R2/4qN1Q/Q3k3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 h5 gxh5 e6 a4 b3 Qxb3 Qg5 a5 Ba3 Qd1 Bb2 Bxb2 Qe7 Bc1 Qd8 Ke2 Ke7 Kf3 Kf6 Kg4 Ke5 d4+ Ke4 h4 g5 f4 b5 f6 c5 a6 b4 h6 c4 f7 e5+ f5 c3 f8Q c2 d6 b3 a7 Qc7 h7 Nd7 d5 Qb8 f6 Qb5 f7 Nh6+ Kh5 g4 Qe1+ Qe2 Bb2 Ke3 Rh3+ Ke4 Ra6 c1R Qe8 Rc6 f8B Rc7 Nd2+ Kf4 Ne4 Nb8 d7 Rb7 d8Q Rg7 d6 Nc6 d7 Bb7 Qb6 Rd8 a8Q Na5 Bc5 Rb8 d8Q g3+ Nf3 g2 Nf2 g1Q Qeb5 e4 Bf6 Rf8 h8Q Ng4 Nd2 e3 Nde4 Qg3 Qa1 Kf3 Qh7 Qd1 Bd3 Qe2 Qg1 Rff7 Qh2 Rd7 Bc2 Qc4 Bb1 Ke2 Qh6 Qg1 Rf3 Ke1 Ng3 e2 Qg5 Qh1 Ra7 Qf1 Be4 Rgf7 Kg6 Rfe7 h5 Qd3 h6 Nc4 Qgh4 Rg7+ Kh5 Kd2 h7 e1Q Bg6 Qe7 h8N Qfe2 Nge4+ Ke1 Ra2 Qf7 Qa3 Qe6 Qb2 Qe7 Ra6 Na5 Qa1+
1Q2r1N1/nk1r2bN/1B2B1r1/2BR3K/BrBq2B1/r6b/Q4Nn1/R3Rb2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 exf4 a4 d5 axb5 Ba3 c4 Be7 cxd5 Bf8 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 f5 d4 c4 e4 h6 g4 f3 e5 f4 b6+ Kb7 e6 f2 e7 c3 e8B c2 d6 f3 d5 Be6 a6+ Kc8 a7 Qd7 g6 Bf5 g5 Bd3 b7+ Kd8 g7 Bf5 g6 Nc6 Bc4 f1B Be3 c1R Qd2 f2 Nh3 Rd1 Qa2 Nge7 g8B Bg7 Ng5 B5h3 Nd2 Nf5 Be6 Nh4 Bc5 Ng2 Nh7 Rb8 a8B Na7 Bg4 Rg8 Bf7 Re8 Bfe6 Qa4 d7 Kc7 d8R Qb4 Bd3 Qd4 Ne4 Rd2 Ba6 Rd3 Bc4 Ra3 Rd6 Rbd8 Rg1 Rd7 Rh1 Bd3 Rhb1 f1R Nf2 Rg1 Rd1 Bf1 Re1 Bf6 g7 Be5 g8N Bg7 Kg6 h5 Kg5 h4 Kh5 Rde7 Rd8 Rd7 d6+ Kc6 Bgf5 Ne3 Bc2 Rg6 Bd1 Ng2 Bde2 Bf5 Bg4 h3 b8Q+ Rb7 d7 h2 Bge2 Bh3 B2g4 h1R Bb3 Kb5 Ba4+ Ka6 Bc4+ Rb5 Bce6 Rb4 Bad5 Bb5 Bc4 Rg1 Re4 Rd1 Re1 Rd2 Rc8 Rdd3 d8B Rd2 Bdb6 Rdd3 Qh2 Kb7 Rd8 Rd1 Rd5 Rd2 Bcb3 Bf1 Bc4 Qf4 Rf5 Rd7 Rd5 Qd4 Qb8+
NRKb4/1R1r4/4Qbb1/r2r3b/Qn1q2kN/QQR3Bq/4N3/3BQQn1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kd7 Ke3 e5 Ke4 g5 f4 c5 d4 c4 h4 b3 h6 b2 d6 g4 Kd5 c3 b6 c2 b7 g3 h7 e4 h5 g2 f6 e3 f5 e2 f7 e1R h6 Qg5 Rh3 Ra7 Rc3 Ra8 Na3 b1B Ne2 g1Q Nc4 Qd2 f6 Ra6 Nb6+ Kd8 d7 Ra2 Ke6 Ra5 d5 Qg6 Na8 Be7 f8Q+ Qe8 f7 Rc5 Ra7 Qd4 Bf4 c1B Qb3 Na6 b8R Bc2 Bg3 Bb2 Rab7 Ra5 Bg2 Bg6 Bf3 Nf6 Bh5 Rg8 h8N Rg7 h7 Rb1 Bf3 Bh5 Ng6 Ne4 h8Q Nf2 Qhg8 Nh3 Nh4 Rd1 Qa4 Rg5 Qh6 Nb4 f8Q Ng1 Bg4 Qc4 Qf1 Qd4 Qa3 Rf5 Qd2 Rf7 Qde1 Rh7 Qg6 Qeh8 Qc2 Bf6 Qca4 Bc1 Q3b3 Bcg5 Kd6 Na2 Kc6 Ke7 Kc7 Nb4 d8Q+ Kf7 Qaa3 Bf5 Qc8 Bfg6 d6+ Kg7 d7 Kh6 Qcg8 Bd8+ Kc8 Bgf6 Qge6 Kg5 Nc1 Rd3 Bd1 Rg7 Ne2 Qh6 Qc6 Kg4 Qca4 Qhe3 Bf2 Qh3 Bg3 Bc7 d8Q Rd7 Qe7 Bd8 Rc1 Qb2 Rc2 R3d5 Rc3 Qd2 Qe8 Qd4 Qe6+
2B3NN/1Kn1RN2/4qk1q/6nB/1n2R2N/2NQ1r2/Qb4QN/B2nrq1b b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 h5 g4 c5 d4 h4 f4 h3 f6 h2 b6 c4 g6+ Ke8 f5 b3 f7+ Ke7 d6+ Kf6 Kd5 b2 d7 c3 g5+ Ke7 b7 e4 g7 c2 Qf3 e3 Ra4 e2 Nc3 e1Q Be2 b1Q Bb2 c1N Ba1 Rh5 Qg4 Rh3 Nf3 Qf2 Re1 h1N Nh2 Na6 b8Q Nf6+ Kc6 Nd3 g8B Nd5 g6 Qc1 g7 Qg5 Qb3 Qg3 Qa2 Ne3 d5 Qb8 d6+ Kf6 Rb4 Be7 f8N Qh6 Be6 Nhf2 Ng6 Qg8 d8N Nc7 d7 Ne4 Nh4 Ke5 f6 Ng5 f7 Kf6 f8N Bb7+ Kb6 Ra5 Nfg6 Re5 Nh8 Qa8 Qe4 Nd1 Bh5 Rg3 Qee2 Bh1 Qg2 Qf3 Re2 Qf1 Kb7 Qe8 Ndf7 Rf3 d8Q Re4 Bc8 Ree3 Reb2 Re1 Re2 Qd7 Rg4 Qf5 Qdd5 Ba3 Re7 Nb4 Qd3 Qe6 Re4 Bb2 g8N+
2N2n2/2RR3q/B1Rrb3/Q3NQr1/1nb4k/3Q2n1/QN1b2KB/1b2QQ1n b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 Kf7 f4 h5 Kf2 c5 g4 e5 f6 Kg6 b6 b3 f5+ Kf7 g6+ Ke8 b7 b2 d6 e4 g7 Kf7 g5 e3+ Kg2 h4 d5 e2 d7 c4 d6 c3 Qe1 c2 Nf3 Nc6 b8Q Rh7 Qbb4 Ra4 Nc3 b1B Qa5 Rh6 Nd1 Qe7 d8R Qa7 d7 Bb4 Nb2 Nge7 g8N Ng6 Ne7 Nf8 Bf4 c1N Bh2 Bd2 Rg1 Ba6 Nc8 Nb4 Rh1 Bc4 g6+ Kg8 f7+ Kg7 Ra3 Kf6 Ne5 Kg5 g7 Rd6 g8Q+ Kh5 f6 h3+ Kf3 Be6 Rc3 Qb7+ Kf2 Kh4 Rc6 Ra3 Qg2 Rg3 Qgd5 Qc7 Qda2 Rg5 Rg1 Qb7 Rg3 Bc4 Rc3 Be6 Rc7 Qe4 R3c6 Qh7 Qd1 e1N Ba6 Ne2 Kf1 Ng6 f8Q Ned3 f7 Nf2 Qe1 Ng3+ Kg1 Rd3 Qfc5 Nfh1 f8Q Rd6 Qff1 Nf8 Qc2 Bc4 Qcf5 Nf2 Qf6 Rd5 Qg2 Nf5 Bf4 Rd3 Qg6 h2+ Kf1 h1B Bh2 Rd5+ Kg1 Ng3 Qgf1 Bhe4 Qf7 Bg6 Kg2 Nfh1 Q7f5 Rd3 Re8 Rd4 d8Q Bgf7 Ree7 Bfe6 Qdd5 Rd3 Red7 Rd4 Qdf3 Rd6 Q3d3
1nrk1N1R/K2n2N1/3B4/n3RRrQ/3rN3/r2q4/Rr1R1RBb/2B1n1Q1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 e5 Kd3 h5 Kc4 a5 b4 c5 d4 f3 g6 f2 d6 a4 d5 e4 f6 e3 g7 e2 d7+ Kf7 b6 e1R Kb5 Re7 g5 c4 d6 a3 g6+ Ke6 f7 h4 b7 h3 Qh5 a2 Bg5 c3 Rh2 c2 Ne2 c1R Ng3 Rc2 Nf5 Qc7 d8R Rb2 d7 Nf6 g8R Na6 b8B Qc2 Kb6 Qc4 g7 Qc2 b5 Qc3 Rg2 h2 Nd2 h1R Re8 Rg1 d8R Qc4 Rd3 Nd7+ Kb7 Qb3 b6 Qb5 Rh2 Rg4 Bh3 f1N Rf2 Rd4 Ne4 Nh2 Bc1 Nf3 Rdd2 Ne1 Bf4 Qd3 Bf1 Rb8+ Ka7 Rb3 b7 Ra3 Rc8 Re8 Rc5 Bd6 f8R Rh6 Rh8 Rec8 Rb5 Rf6 g8Q+ Rf7 Qgg4 Rg7 Qg1 Rg5 Ng7+ Ke7 Rff5 Be5 Bg2 Bc7 Rab1 a1N R1b2 Nb3 Ra2 Na5 Bg3 Bf4 Bh2 Be3 Be5 Bf4 Bc7 Bh2 Be5 Nf8 Bd6+ Kd7 Rbe5 Kd8 Rh7 Nd7 Rh6 Rc2 Rh7 Rbc8 Rh8+ Nf8 b8N Rb2 Nd7 Nb8 Ndf6 Raa4 Nh7 Ra3 Ne8 Nfd7 Nf8 Rac3 Ng7 Rcb3 Bf1 Ra3 Bg2
NNN1k3/B6b/1n3R1b/1QNN2rb/Rrn4K/n2n1rr1/1QB2N2/1R5B b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ba6 g5 Bc8 h5 Qd6 Ne2 Ng8 Ng1 Qg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 Kf2 c5 b4 a5 d4 h5 f6 e5 d6 h4 g7 a4 f7+ Kd7 d5 c4 b6 a3 g6 h3 b5 f3 Kg3 e4 b7 e3 b6 a2 Qb3 h2 Nh3 e2 Be3 e1N Nc3 f2 Qb5+ Kd8 d7 Bc5 Bd3 f1R Bc2 Bf8 Nf2 Nc6 b8Q Nd3 b7 Na5 Ba7 Nf6 g8B Rh5 g7 Rg5+ Kh4 Rg3 Rb1 a1N Bh7 Rfg1 g8N Bh6 Ne7 Rf3 f8N Rg5 Rhf1 h1B Be4 Rfg3 Qe5 Bf3 b8N Bh5 Bh1 Bb7 Nc8 Bc6 Na4 c3 Ng6 Nc4 Nab6 Bb7 Nf4 Ba6 Ba4 c2 Qeb2 c1R Bd1 Rc3 Bc2 Kc7 d8R Nd7 Re8 Ra3 Re4 Kd8 Rd4 Ke8 d6 Rb3 Nfd5 Rb4 Ne4 Bb7 Rf6 Rf3 Nf2 Rfg3 Ne3 Be4 Ned5 Bh7 Rg4 Na3 Rgf4 Nb3 Rc4 Nd2 Rcf4 Rb3 Ra4 Rc3 Nc6 Rb8 Na8 Rb7 Nb8 Ndc4 Qa5 Ndb6 Qa6 Bf7 d7+ Kf8 d8N Ke8 Qa5 Bh5 Ne6 Rb3 Nc5 Rb4 Rc6 Rf7 Qb5 Rff3 Rf6+
2rkr1N1/3q1B2/2p2rb1/2R2RR1/R2b2NB/RK4Rn/1n1QQQ2/2B2n1n b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 f4 g5 d4 e5 Kd2 e4 Kc2 e3 h4 e2 h6 e1N+ Kb3 c6 f6 g4 f7+ Kd7 d6 g3 b6 g2 h5 Na6 h7 Ra7 b7 Nf6 b8R Qa5 f5 Rc7 h6 Nc2 d5 Rb7 Nh3 g1N Nc3 Qc7 Bc4 Ng4 f6 Ne2 Ne4 Na3 Ra8 Nh2 Nhf2 Nb5 Ra4 Qa5 Ng4 Nbc7 Rg1 Ra7 Rg3 Kd8 d7 Ne6 Qd2 Rg8 h8R Nf1 h7 N6f4 Qe1 Rg6 Rg8 Rc7 h8R Nh3 Rh5 Qc5 Rg5 Qd6 Rf5 Rh6 Rgg5 Bg7 f8B Rg6 f7 Bd4 Nef6 Qe7 Ng8 Rf6 Bg7 Qe8 f8Q Nc5+ Ka2 Nd3 Kb3 Nb2 Bh6 Nef4 Qe2 Nh5 R8a5 Ba6 Rc5 Rc8 Qf7 Kc7 d8R+ Qd7 Re8 Bb5 Ree5 Kd8 d6 Ba6 Bd5 Bd3 Rff3 Bg6 Ref5 Nf2 Rfc3 Nf4 Be6 N4h3 Qf8+ Qe8 d7 Nh1 Bf7 Bh7 Qd6 Bg6 Qf4 Qe7 Qff2 Qe8 Ka2 b3+ Ka3 Nd3 Bf8 b2 Rb3 b1R Be7+ Kc7 Rbc3 Rbb8 Ka2 Nb2 d8Q+ Kb7 Qd6 Qd7 Kb3 Re8 Qdf4 Rbc8 Qfd2 Kc7 Rh5 Rd6 Bh4 Rf6 Rhg5 Kd8 Kc2 Qb7 Rca3 Qd7 Kb3
8/B1NRK3/1N3r2/1BNbB1pb/1kQRnQ2/1nr2r2/1R2B1B1/2r2qqB b - - 0 1 illegal: No possible last move, all moves rejected
8/qk2NbbQ/1p2nBnN/b1R2R2/2bb4/1NB1BB2/1KQBB1q1/2Q2n2 b - - 0 1 legal: proof: g4 a5 b4 axb4 c4 d5 cxd5 f5 gxf5 g5 f4 h5 e4 g4 h4 Nc6 f6 Ra7 f7+ Kd7 f5 Nb8 e5 Ra6 Bg2 Rc6 Bf1 Rf6 exf6 Rh6 Be2 Rg6 Bf1 Rg5 hxg5 Bg7 Bg2 Bh6 Bf1 Bf8 a4 c5 d4 Kc7 Kd2 e5 Kc2 b3+ Kb2 g3 g6 e4 a5 g2 d6+ Kc6 a6 b6 d5+ Kd7 g7 h4 a7 h3 a8B c4 Bd2 e3 Ra5 e2 Qc1 e1N Ne2 g1B Nbc3 h2 Nd4 Qe8 Be2 Qe3 Rc5 Bf2 Rf1 Ne7 g8N h1Q Nh6 Bg7 f8Q Qg2 f7 Ng6 f6 Na6 Qh8 Qe7 f8B Nf3 f7 Nc7 Qh7 Ba6 Be3 Kc8 d7+ Kb8 d8B Ne6 d6 Qa7 d7 Nh2 Baf3 Bb5 Nd5 Kb7 Bdg5 c3+ Kb1 b2 d8B Ba6 Bdf6 Bc4 Nb3 Be1 Rf2 Nf1 B8e7 Bd2 f8Q Be1 Qe8 Bd2 Qa4 c2+ Ka2 b1B+ Kb2 Ba5 Bc3 Ba2 Bd2 Bd4 Bge3 Bg7 Bh5 Bd4 Rf5 Bg7 Bhf3 Bd4 Qb1 Bg7 Bef6 c1B+ Kc2 Ba3 Qc1 Bb2 Ne7+ Bd5 Nd4 Bc4 Nb3 Ba1 Bb4 Be5 Bbc3 Bd4 Kb2 Nc7 Rc6 Bf7 Qa2 Ne6 Qab1 Ngf4 Qbc2 Ng6 Rcc5+
r1q5/3NN1Rp/4N2n/1QB1K2n/r1p2NR1/Q5b1/NB1nbQ2/R1rkN3 b - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 exf5 b4 cxd5 b3 axb3 Bd7 b4 Be6 b5 Bc8 b4 g5 hxg5 a6 b6 Qd6 b7 Nh6 b5 Qd8 b6 Ng8 Bb5+ axb5 Ke2 Kf7 Kf3 e5 Ke4 c5 f4 b4 d4 b3 g4 b2 f6 Kg6 d6 c4 f5+ Kf7 d7 Ra5 d5 Na6 b8N Rc5 d6 Nc7 b7 Ne7 g6+ Kg8 g7 Kf7 g8N Ncd5 g5 Bg7 g6+ Kf8 f7 Bh6 Qb3 Kg7 Rh4 Bd2 Qa3 Rc6 Rg4 Be1 Nf3 Nf4 Nc3 b1N Na2 Nh5 Bb2 Bg3 Ne1 Ra6 f8N Qe8 d8Q Ra4 Qb6 Qd8 d7 Nd2+ Ke3 Qc7 d8N Bd7 Qbc5 Qc8 Qb5 Bc6 Nbd7 Bf3 b8Q Bd1 Qa7 Be2 Ngf6 Kh6 g7 e4 Kd4 e3 Ng6 Re8 Nf4 Ng8 N6d5 Rf8 f6 Re8 Rh4 Kg5 f7 Nh6 g8R+ Kf5 Nde6 Rd8 Kc3 Ke4 f8B Re8 Ne7 Rd8 Ned3 Kf3 Kd4 Re8 Ke5 Rd8 Ndc1 Kf2 Rgg4 Ke1 Rg7 Kd1 Qab6 Qb7 Qa7 Ra8 Rhg4 Qc8 Q7c5 Bf3 Qd4 e2 Qde3 e1R Nd3+ Kc2 Qe2 Rc1 Qf2 Kd1 Ne1 Be2 Nd5 Nb3 Bc5 Nd2 Ne7
1r1r4/4QqbR/1QB2Q1Q/p7/B2Nb1pK/2BQN2N/1R2n1Q1/1k1q2nn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 Kd6 d4 f5 b4 a5 h4 c5 e5+ Kc7 h6 Kb6 h5 g5 e6 g4 d6 c4 h7 c3 d5 f3 Kg3 c2 e7 f2 e8B Bh6 d7 Ra7 d6 Rb7 Na3 Qf6 d8Q+ Rc7 d7 Bf8 h6 Qg7 Qe2 f4+ Kh4 f3 Ra2 Ne7 Nc4+ Kb7 b6 Kc6 b5+ Kc5 b7 Kd4 b6 Kc3 Bb2+ Kb3 Ne3 c1N Bg2 f1Q Bc3 f2 Nh3 Nbc6 b8N Rb7 Rc2 Nd4 Nc6 Rb8 b7 Qd1 Qd3 f1Q Qb6+ Ka3 d8Q Nde2 Nd4 Bf5 Ba4 Ng1 Bgc6 Nce2 Qd5 Rd8 b8Q Be4 Q8b7 Qff7 Qe6 Rg8 h8Q Qe5 h7 Bg7 Rh2 Rb8 Qh6 Rgd8 Qf8 Qb5 h8Q Qb2 Qf6 Ka2 Qhh6 Kb1 Rh1 Nd5 Qbe7 Ng3 Qff1 Nf4 Qg2 Nfe2 Qfh8 Bf8 Q8f6 Bg7 Qhg6 Bf8 Kg5 Qc1 Nf2 Ka2 Rh7 Kb1 Qh6 Qd1 Nh3 Nh1 Kh4 Bg7 Rxb2+
qNBnnkr1/b4q2/K2pr1b1/6R1/1B5N/1QQ2B2/N3Np1N/1Nq2RR1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 axb5 e4 d4 cxd4 f3 Ba3 fxe4 Be7 e5 Bf8 Kd2 g5 Kd3 f5 Kc4 g4 h4 d3 e4 d2 b6 g3 Kb5 g2 c4 d6 a6 f4 b7 f3 h6 f2 a7 Be6 h7 Bh3 c5 Bf5 c6 Be6 h5 Bb3 c7 Nf6 c8B Ba2 e6 Nbd7 b8N Qc7 e5 Qd8 e7 Qc7 h6 Qd8 Ne2 g1Q Bg2 Rg8 h8N Rg5 h7 Qf1 Ba3 Bg8 Rg1 Rg4 Qb3 d1Q Ng6 Qfe1 h8Q Rc4 Bf3 Nh7 Nh4 Nhf6 Ka6 Qc1 Bb4 Bh7 Rg5 Kf7 e8R Bg7 Rg8 Nf8 e6+ Ke7 Rg1 Bg6 Rg5 Ke8 e7 Re4 Rg1 Re6 Rg5 Kf7 e8N Qed2 Rg1 Qf4 Rf1 N6h7 Nf6 Bh6 Ng4 Nf6 Ra5 Ne8 Qhc3 Qc4+ Rb5 Be3 Nh2 Qf4 Rf5+ Ke7 Rg5 Qf7 Nd7 Rb8 a8N Ba7 Nab6 Ra8 Na4 Qa5+ Kb7 Qd5+ Ka6 Rb8 Nd2 Qa8 Nb1 Bc2 Qc7 Rf6 Rg4 Rb5 R4g7 Rg5 Qc6 Ne6 Nb8 Nd8 Nac3 Re6 Na2 Rg3 Rg4 Bf5 R8g7 Kf8 Qcc3 Rg1 Rf4 Rgg6 Rg4 Rg5 Rgg1 Rg2 Rh7 Rg8 Rh5 Bg6 Rhg5
1B2B1Nr/Q6n/RbN1qRRK/pn3pRR/1r3n1Q/2N4B/1r1q4/4R2k b - - 0 1 legal: proof: f4 d5 c4 b5 cxd5 e6 g4 b4 f5 exf5 a3 Be7 axb4 Bc5 b5 Bf8 g5 f6 gxf6 g5 h3 g4 Kf2 g3+ Ke1 Be6 Ra3 Bf7 Ra6 Bh5 Ra1 Bg4 hxg4 Bd6 Ra5 Bb4 Ra1 Bf8 d4 Kf7 Kd2 Kg6 Ke3 Kg5 b4 h5 f7 a5 b6 c5 d6 g2 b5 c4 d5 h4 b7 h3 b6 Kh4 Kf4 h2 e4 c3 g5 c2 e5 Qd7 g6 Qc7 d7 Ba3 d8Q+ Ne7 f8R Rg8 g7 Ra6 d6 Bc5 e6 Qc8 d7 Ra8 Ne2 Kh3 Kg5 Nd5 e7 Nc7 e8B Ra7 Kh6 Bb4 Bf4 c1N Nd4 Ba3 Rf6 Nb5 Nc6 Bc5 Nc3 Ne2 Qd4 Ra6 Be5 Nf4 Re1 Kg3 Qc7 g1R d8R Rg2 Rdd6 Nd7 b8R Rb2 b7 Rb6 Bh3 Nf8 Ra8 Qe6 b8R Nh7 Ra6 Rh8 g8N Kf3 Rhg1 h1Q Qa7 Qh2 Rg5 Qd2 Rb7 Rb4 Rh5 Kg3 Rg7+ Kh2 Rgg5 Rb7 Qe4 Bb6 Rfg6 Qd7 Rdf6 Qe6 Qc4 Rb2 Re4 Kh1 Bb8 Rd7 Qd4 Rd5 Qf2 Rd4 Qh4 Rdb4 Re1+
2b1n2Q/k1B3Bb/b1N1B1p1/1Q3q1N/2p4n/2N2Q1R/K1R3b1/N2Nb1rN b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra1 Qg5 h4 a5 h5 g6 h6 Qf5 gxf5 Ra6 Ra2 Re6 Ra4 Re7 Ra1 Rg7 hxg7 Bb4 Nc3 Bc5 Nb1 Bf8 b4 Kd7 d4 c5 Kd2 Kc7 Kc3 Kb6 Kb2 h5 e4 f2 d6 a4 d5 c4 e5 a3+ Ka2 h4 e6 f3 f6 h3 d7 h2 d8Q+ Ka7 e7 Rh3 e8N Be6 d6 Na6 d7 Nc5 b6+ Ka6 f7 Ne7 g8N Rh5 b5+ Kb7 Bf4 Bh3 Nc7 Re5 Nd5 Re1 Bc7 Nd3 Nbc3 Re5 Nge2 Nf4 Rc1 Ne6 Ne3 Nf5 Rc2 Neg7 Ng3 Ne8 Nf6 Bb4 f8B Nh4 Bg7 Rg5 Nfh5 Be6 Bh3 Bg8 Be6 f1B Qd3 f2 Ned1 Bg2 Qf3+ Rd5 Qg5 f1B d8Q Bh7 Qdf6 Ka8 b7+ Ka7 b8N Bd3 Qge5 Bf5 Na6 Rd4 Qg5 Rg4 Nc5 Ba5 Nb3 Bb4 Bg8 Bc8 Be6 Ba5 Na1 Bb4 Re1 h1B Re3 Ba6 Qgf5 Bh3 Qf8 B1g2 Qh8 Rg5 Nh1 Rg3 Bf7 Bhc8 Be6 Ba5 Ne4 Be1 b6+ Ka8 b7+ Ka7 b8N Rg5 Kb1 a2+ Kb2 Bf1 Ka3 Rg1 Nec3 Bg2 Nc6+ Kb7 Qff5 Bf2 Qb5+ Ka8 Nb3 a1Q+ Ra2 Qb1 Na1 Qc2 Rh3 Be1 Qf3 Qd3 Rc2 Qf5 Qe5 Kb7 Ka2 Ka8 Qa5 Kb7 Qb5+ Ka8 Nb8+ Ka7 Nc6+
2QR2RB/2rR4/2n5/B2R2K1/nBQbR1Qr/pNN2r2/1qpr3R/3k1n2 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 f4 h5 g5 Kd7 g6 Nf6 Bh3 Ng8 Bg4 hxg4 f6 Kd6 f5 Be6 Ra2 Kd7 Ra1 Bf7 gxf7 Rh3 Qf3 Rh5 Qd1 Rh8 Ke2 Kd6 Ke3 Ke5 h4 a5 d4+ Kd6 Kf4 e5+ Kg5 c5 b4 e4 h5 a4 h6 e3 h7 c4 b6 g3 b5 a3 b7 c3 b6 c2 Bd2 e2 Rh2 e1N Nc3 g2 Nge2 g6 Nc1 g1R+ Qg4 Ng2 Nb3 Ne3 Rd1 Bg7 f8B+ Ne7 f7 Na6 b8R Rf1 f6 Rf3 b7 Qb6 Re8 Nc5 b8R Na4 Rb7 Rc8 Be1 Rg8 h8B Nf1 Bd2 Rc7 Re1 Qb4 Re6+ Kd7 d6 Kc6 Re4 Qb6 d7 Qb5+ Nc5 Qb2 Nb3 Kd6 d8Q+ Kc6 Ra7 Kb6 d5 Nc6 Bb4 Rf8 Na2 Kb5 d6 Rf4 R4e5+ Kc4 d7 Kd3 Qc8 Rd4 d8R Rd5 Kh4 g5+ Kh5 Rd6 Nc3 Rd4 Rf5 Rd5 Re4 Rdd7 Qd1 g4 Kg5 g3 Qg4 g2 Ba5 Rd4 Rfd5 g1R Be1 Rg3 Rb7 Rg8 f8Q Rf3 Qc5 Re8 f7 Ree7 f8R Red7 Rdf5 Rb4 Rd5+ Bd4 Ra7 Rh3 Ree5 Rf3 Na2 Re7 Qb7 Rc8 Qh3 Re8 Qa6+ Rc4 Rae7 Rc7 Qac8 Rb4 Red7 Re7 Ref5 Re2 Rfe5 Rc4 Beb4 Rd2 Ref5 Ke3 Nc3 Kd3 Rg8 Ke3 Qe7+ Be5 Qc5+ Rcd4 Qc4 Rh4 Qhg4 Bd4 Rh3 Kf2 Rh2+ Ke1 Rf4 Ng3 Nb1 Kd1 Re4 Nf1 Nc3+
3BR1r1/p1Nn4/3kp3/b1N2R1B/N5b1/2b2nq1/KNN3Bb/Q1Q2NnQ b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 g4 h5 b6 hxg4 b7 f5 exf5 Qd7 bxa8B Qd8 d4 Kd7 Kd2 c5 Kc2 g5 Kb3 g3 f4 g2 h4 g4 d6 e6 d5 c4+ Ka2 g3 b4 c3 b5 c2 h5 Be7 h6 Nc6 b6 Rh7 f6 Nd4 f7 Nb3 f8Q Qe8 b7 Bh4 b8N+ Kd8 d7 Kc7 d8N Bg5 d6+ Kb6 f5 Kc5 d7+ Ne7 f6 Ba6 f7 Na5 Nf3 g1B Nh2 g2 Bf3 Bb5 Nb7+ Kb4 d8N Bd4 Bh5 g1N Nc3 Nf3 Nd6 Kc5 Qg7 Nf5 f8N Nb3 Bg2 Qg6 Nfd7+ Kb4 Nc4 Ba6 Nb2 Bh4 Nca4 Ng1 Ndc5 Qg3 Bg5 c1B Nf1 Bd2 Qc1 Rh8 h7 Rg8 h8Q Be2 Nba6+ Kb5 Qgh7 Ba5 Nc6 Bg4 Ncb4 Bc3 Nc2 Nfd4 Bd8 Ndf3 Nc7+ Kc6 Qf6 Bg5 Rh4 Kd6 Rb1 Bf5 Rf4 Bg4 Rf5 Bf4 Qhh8 Nbd2 Qh4 Ne5 Qh1 Ndf3 Nc4+ Kc6 Rb8 Nd7 Ncb2 Kd6 Qe5+ Kc6 Qee1 Kd6 Qa1 Qh3 Qec1 Bh2 Bf6 Qh4 Re8 Qg3 Bd8
r1N5/2R2brk/r1Bp2N1/RB4KB/1rn1BpB1/3Q1R2/2bB1Q1q/1Q2q3 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qb6 g5 Qd8 h4 f5 Ra2 Be7 Ra5 Na6 Ra1 Nc5 Qd3 Ne6 Qd1 Bf6 gxf6 g5 Rh2 g4 Rh1 Ng5 hxg5 Qc7 Bd2 Qb6 Bc1 Qd8 Kd2 Kf8 b4 h5 c4 a5 e4 a4 c5 a3 g6 a2 f7 Kg7 f8R g3 e6 h4 c6 g2 e5 h3 e7 h2 e8B d3 Ke3 d2 Kf4 d6 e6 Rh6 b6 Qe7 c7 Rh8 b7 Qd7 b8Q Rh7 b5 Rh8 e7 Rh7 b6 Kh8 b7 Qa4+ Kg5 Qb4 Bfb5 Qc3 Na3 Qf3 Qa7 Rg7 b8Q Be6 c8B Qe2 Bec6 Bb3 e8B Qf1 Qf2 Bc2 Nf3 Rb7 g7+ Kh7 Nc4 Ne7 Nfe5 Nd5 Bh5 Nb6 Ng6 Qe1 Rg1 h1Q g8B+ Kg7 Qde2 d1B Qd3 Qh2 Bgd5 Kh7 Bd2 f4 Bcg4 Be2 Rf1 g1R Be4 Rg7 Rc1 a1R Rf5 R1a6 Rc5 Bed1 Ra1 Bb3 Ra5 Bdc2 Qb7 Nc8 Nb6 Bf7 Bd7 Rg3 Rc7 Rh3 Bdc6 Rf3 Nd5 Nb6 Ne7 Nc4 Nc8 Rg3 Qg1 Re3 Rf3 Re2 Qf2 Re3 Qdf1 Rb3 Qbb6 Rb1 Qbe3 Rb4 Qed3 Bd1 Qb1 Bc2 Qd3
R3Q2B/Q2B1qqp/1b2r1B1/4NBQ1/bR3q1r/1k4p1/1n2B2R/3N1qBK b - - 0 1 legal: proof: c4 b5 g4 f5 a4 e5 axb5 d5 cxd5 g5 f4 Nd7 fxe5 Ndf6 Nf3 fxg4 Ng1 g3 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Kd7 Ra2 Ke7 Ra1 Ke8 e4 Kd7 d4 a5 b4 c5 g6 g2 Kf2 a4 d6 Ke6 b6 a3 g7 c4 b7 c3 b8Q c2 d5+ Kd7 e6+ Ke8 b5 a2 e5 Qd7 e7 Kf7 e6+ Kf6 e8B Ke5 e7 Nh6 g8B Nf5 b6 Qc7 b7 Ra6 d7 Ra5 d8Q Ne3 d6 Bd7 Be6 Bh6 Nf3+ Ke4 Kg1 Qb6 Bb2 c1Q Qd2 Bb5 d7 Ra4 Qa7 Qbc7 b8R Nc4 Qg5 Q1f4 Bf5+ Kd5 Beg6 Re8 Bh8 Nb2 Rh2 Rc4 B1d3 Ba4 Rb4 Bg7 Be2 Bf6 Qf2 Bd4 Ne5 Bb6 Qc8 Re4 d8B Rd4 Nc3+ Kc5 Re1 a1Q Nd1 Qa2 Qe3 Qf7 Qa6 Qg7 Qa7 Qd7 Bc7 Kd5 Bd6 Qe6 Bc5 Qef7 Nd3 Re4 Bd4 Re6 Ne5 Rc8 e8B Rc4 Rb3 Rb4 Bd7 Rc4 Rc3 Rb4 Rc8 Rc4 Ra8 Rb4 Nd3 Kc4 Qe4 Kb3 Ne5 Rc4 Qc6 Rc3 Qc8 Rh3 Qe8 Rh4 Rf1 Qd2 Rf4 Qc1 Kf2 g3+ Kf3 g1Q Be3 Qe1 Kg2 Qcd2 Bg1 Qf1+ Kh1 Qc1 Rd4 Qcf4 Rb4+
QR6/3q2B1/1pQnB1kp/4n1rB/4N2B/2B1R1b1/2B1p2Q/1K1RqNbn b - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Nc6 g4 Ra7 f4 Nb8 b4 axb4 f6 Kd7 f7 Ra4 f5 Ra8 f6 g5 h3 Kd6 Be2 Bf5 Bd3 Kd7 gxf5 g4 Bf1 g3 Qc2 Ra5 Qd1 Rc5 Bg2 Rc4 Bf1 Rg4 hxg4 Qc8 Ba3 Qe8 Bc1 Qd8 d4 c5 Kd2 e5 Kc2 g2 a4 c4 d6 c3 g5 b6 d5 e4 a5 h6 a6 e3 a7 Na6 a8B Nb8 g6 Qe8 g7 Qc8 Nd2 b3+ Kb1 b2 Qf3 Qa6 Ra3 Qc8 Ne4 Qc6 Ne2 g1N Bd2 Na6 N2g3 Nb4 Be2 Nh3 Rd1 Nf2 Nf1 Kd8 d7 Bc5 f8B Bd4 f7 Nfd3 f6 Ne7 g8B Ne5 Bg7 Nbd3 f8B Qb7 Be6 Nf5 f7 Nd6 Qg2 Qa7 Bh5 e2 Qh2 Nf2 Bb7 Rg8 Be7+ Kc7 f8R Nh1 Rd8 Bg1 Bh4 Qa4 Rb8 c2+ Ka2 c1B Kb1 Qb5 Bc3 Bf4 Ba6 Qc6 Bd3 Bg3 Bc2 Qb7 Bf8 Rg5 Bg7 Nc8 d6+ Kc6 d8Q Qd7 Ned2 Kc5 Qf6 Kc6 Ba2 Kc5 Rb3 Kd5 Qf3+ Ke6 Ne4 Qb5 d7 Nd6 d8Q Qd7 Qfg2 Kf5 Qc8 B1f2 Qc6 Bg1 Bf3 Kg6 Ra3 Qe8 Be6 Qd7 Bh5+ Kh7 Qa8 Ndf7 Bb4 Nh8 Re3 Rg6 Rd4 Rg5 Bc3 Nhf7 Ka2 Nd6 Nc5+ Nd3 Qgc6 b1Q+ Ka3 Qe1 Ne4 Ne5 Kb2 Qe8 Rd1 Qd7 Bf3 Kg6 Kb1 Qf2 Bfg4 Qe1 Bh5+
Bkr2Q1Q/1pb1Nqb1/3N4/4Q2p/K5R1/B4Rp1/1bQQq2N/nnB1Q3 b - - 0 1 illegal: No proof kernel
R4q2/Nb4Qp/2krR1Br/1N1b3R/1K3QRp/R2b1RBB/3pNn2/7b b - - 0 1 illegal: No proof kernel
1rRRB3/n1N4K/4p1pN/b1R1B1QQ/3Q4/p5Bb/1Br1b1kB/1b3B1n b - - 0 1 illegal: No possible last move
1Bq2RR1/2R3pq/NQ4p1/np2K3/1R1BN3/3Q4/b1q1Bn2/R2QbnRk b - - 0 1 legal: proof: e4 a5 g4 d5 b4 Kd7 bxa5 d4 g5 d3 g6 hxg6 cxd3 Rh6 d4 Nc6 d5 Nb8 d6 Kc6 d7 Rh8 d3 b5 d4 Ra6 d5+ Kc5 Qh5 Rf6 d6+ Rf5 Qf3 Kc6 Qd1 Rd5 f3 e5 exd5+ Kc5 f4 e4 Be2 Rh5 Bf1 Re5 fxe5 Qe7 Qh5 Qe8 Qd1 Qd8 Kf2 f5 Kg3 c6 Kf4 e3 h4 e2 a4 e1Q h5 Qf2+ Nf3 Qc7 d8B Bd7 e6 Qc2 e7 Qc8 e8R Qc3 h6 Qd4+ Re4 Qf6 h7 Be8 h8R Qf7 d7 Nf6 d6 Be7 a6 Qg8 a7 Qa2 a8R Nh7 a5 Ng5 a6 Bf7 a7 Qc2 Rb4 Ba2 Ne5 Ne4 Be2 Bh4 Nd3+ Kd5 Bb2 c5 Rg8 c4 Rg1 c3 Nd2 Nf2 Nc5 Nc6 Bc7 Na5 d8Q Bg3+ Ke3 Bh4 Bb8 f4+ Kf3 Bg3 Qb6 Qh3 d7 Qh7 Rc8 Bh4 Rc7 Ke5 Kg2 f3+ Kh2 Kf5 d8Q Ke5 Nde4 Kf4 Rg2 Ke3 Na6+ Kf4 Q8d3 Bg3+ Kg1 Kg4 Kf1 Kh3 Rg1 Kh2 Ke1 Qd2+ Kf1 c2 Bd4 Qc1 Ke1 Qb1 Kd2 c1Q+ Ke1 Qc5 Kd2 Qbc2+ Ke3 Bh4 Kf4 Qc6 Rg4 Qd7 Ke5 Qc8 Bf1 Kh1 Rg2 Nh3 Be2+ Be1 Rg4 f2 Rg5 f1N Rg1+ Kh2 Rb2 Qd7 Rb4 Nb7 Rc8 Qc3 Bd6 Qc2 Rc3 Qg4 Rg8 Na5 a8R Nf2 Raf8 Qd7 Bb8 Qc8 Rg4 Kh1 Rc7 Qb3 Rg3 Qc2 Rg1+
4NQ1b/2N4N/1q2Bnp1/3q1R1R/Nr1B1KQn/2R1p1pp/1k1N1NB1/3r4 b - - 0 1 legal: proof: c4 f5 d4 d5 cxd5 b5 a4 Bb7 axb5 Nd7 e4 Kf7 g4 fxg4 d6 Nb8 d5 Ba6 d7 Bc8 h4 g6 d6 Ba6 h5 Bb7 h6 Bd5 exd5 Qe8 Bd3 Kf6 Be2 Qf7 Bf1 Qg7 hxg7 Kf7 Kd2 Kf6 Ke3 Ke5 d8Q h5 f4+ Kf6 b4 a5 b6 c5 f5 Ke5 b7 c4 b5 c3 d7 a4 d6 a3 b6 e6 f6 g3 f7 a2 Bb2 h4 Nd2 Ra4 Qg4 Nh6 g8B Na6 b8R Kd5 b7 e5 Nh3 c2 Nf2 c1Q Bd4 e4 Kf4 e3 Rc8 Bg7 b8N Bf6 Rc3 Qd1 Qf8 Nf5 d8N Rb4 d7 Bg7 Ne6 Nc7 d8N Ne8 Na6 Nf6 Nb7 h3 Nbc5 Nh4 Bg2+ Nf3 Rac1 a1Q Rf1 Qa5 R1c2 Qb6 Nac7+ Kc6 Ne8 Kb5 Rc1 Nh4 N6c7+ Ka5 Rb1 Rh5 Rbc1 Rd5 Rb1 Bh8 Rbc1 Rb2 Ra1+ Kb4 Ra5 Rd8 Be5 Ra8 Nce4+ Qd6 Qe7 Qb1 f8N Bg7 Nh1 Nd7 Be6 Qd3 Nh7 Bh8 Qf8 Nf6 Kg5 Qc4 Rc5 Ra1 Bd4 Rd1 Rf4 Qc6 Nhf2 Qb6 Re5+ Ka4 Nc5+ Kb4 Rf3 Rb3 Rd5 Ka3 Rf4 Kb2 Rf3 Nd7 Rf6 Rb5 Kf4 Rb4 Rh5 Qd5 Rff5 Nf6 Na4+
1RQr1r1B/b3KN2/B3bnrB/N2Q2rn/2N1kq2/1R1rNN1Q/8/1N4nb b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 b4 c5 d4 e5 g4 a5 f4 c4 f6 h3 b6 c3 b7 a4 f5 h2 b5 c2 g5 a3 g6 a2 b6 h4 g7 h3 f7 Rh6 f6 Rg6 Ba6 Nd7 Kf5 e4 b8N e3 b7 e2 Bb2 c1R Qf1 e1R Nc6 Rcd1 b8Q+ Qc7 Nf3 Be7 f8B Re4 f7 Rd3 Na5 Ngf6 g8N Rc3 Bh6 Re2 f8N Rgg2 Ng6 Re4 Nge5 Nh5 Nf6 Rd3 Nfg4 Ndf6+ Kg6 Rgd2 Ne3 Rg4+ Kf7 Rg6 Qg2 Bf5 Qc8 Rb8 Rc1 h1N Rc3 h2 Qh3 Nf2 Rb3 h1B Qf8 Re2 Qh4 Red2 Bc4 Nf4 Nac6 Nh7 Bb5 Nh5 N5c4+ Kd7 d6 Rc3 d5 Nh3 Qh8 Ng1 Qh3 Rd4 Qg8 Rcd3 Bc3 Rf4 Bh8 Ra8 Qb8 Rfd4 Qb7 N7f6 Qa6 Bd8 Kf8 Be6 Qa5 Kc8 d7+ Kb7 d6 Rc8 B6g7 Qb8 Bh6 Bb6+ Ke7 Rf8 d8Q Qc7+ d7 Qf4 Qda8+ Kc7 d8N Rd6 Nf7 Rdd8 Q5a6 Bc5+ Ncd6 Bd4 Q6c8+ Kb6 Ng4 Kc5 Nc4 Kd5 Nge3+ Ke4 Ba6 Bd7 Rb8 Ba7 Qab7 Be6 N6a5+ R3d5 Qbd7 Rc5 Nba3 Rcg5 Rab1 a1R R1b3 Rd1 Nb1 Rd3 Qd5+
1R1B4/Q3Bqr1/2K1N2B/1Q4b1/qb3nkb/3b1B1R/1NnN2rn/2Bb1R1B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 h5 d4 a4 b4 h3 d6 h4 Kd5 c4 b6 a3 b7 h2 f6 h3 b5 c3 f5 a2 f7 e4 f6 e3 b6 c2 g5 e2 g6 e1B g7 Ra7 Nc3 Na6 b8Q Qc7 b7 Nc5 Qh5 Nh6 g8B Ne6 Be2 Ng4 Na4 Bh4 Bf3 Rh7 Qa8 Rg7 b8R Ba6 Nb2 Bd3 Rb1 Ra6 Qa7 a1N Bh7 Be7 f8B Ra2 f7 Beg5 Be7 Bd2 f8B Bb4 Bf4 c1B Bhe4 Nc2 Bh6 Bcg5 Rf1 Bf6 Bc1 Bfg5 Qa6 Qa7 Qb6 Qa4 Qa6 Rf7 Bh6 Rg7 Qa8 Bbe1 Qa6 Nf4+ Kc5 Ke6 d5+ Ke5 d7 Bc3 d6 Bb4+ Kb6 Ke6 d8N+ Ke5 Bb7 Kf5 Nd1 Rb2 d7 Ra2 Ne6 Rb2 d8B Ra2 Ne2 Rb2 Rhg1 h1B Nec3 h2 Qa7 Bg2 Ne4 h1Q Ba8 Nh2 Nd2 Bh3 Qe8 Bg4 Rg3 Qg1+ Kc7 Qf2 Rh3 Bh5 Bh1 Kg4 Qb5 Ra2 Bag2 Qf3 Nb2 Qd5 Nc5 Qf7 Bb7 Kf5 Bbd5 Bd1 Kc6 Kg4 Ne6 Qa3 Nf3 Ne3 Na4 Rg2 Nb2 Qa4 Nd2 Nc2 Bf3+
rn6/6b1/1RR1Qb1R/1B1Q2nq/q2R4/Q2nB2B/Rb2b2K/q1rNNkR1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kf6 d4 h5 f4 a5 Kf2 c5 Kg2 e5 b6 c4 b5 a4 d6 e4 d5 e3 b7 a3 b6 c3 g5+ Kg7 g6 Kh6 d7 a2 f6 c2 f7 e2 d6 e1Q g7 Qde8 d8Q Nf6 g8B Bg7 f8Q Bg4 d7 Ne4 f5+ Ng5 f6 Na6 b8R Kg6 b7 Kf5 f7 Ke4 Qdd6 Rh7 Be3 c1B Rc8 Bcb2 Nf3 h3+ Kg1 h4 b8R Rh8 Rb6 h2+ Kg2 Qb4 Rcc6 Nb8 Bb5 h3+ Kg3 Qa4 Nc3+ Kf5 Rhg1 h1Q Rg2 h2 Qa3 Rh4 Qfd6 Bf6 f8R Qh5 Qe8 Qg1 d8R Qc1 Rg1 h1N+ Kg2 Rh3 Bb3 Qb1 Rh8 Nf2 Rh6 Rh1 B3c4 Qe1 Bf1 Nd3 Qee7 Qc1 Kg3 Bg7 Bh3 Qb1 Rg2 Rc1 Nd1 Bgf6 Qf7 Ke4 Ne1 Be2 Rd7 Bg7 Kh2 Bbf6 Nc2 Kf3 Qfe6 Qb2 Qde5 Qc3 Rd4 Qb2 Rb1 a1B Qec5 Qa2 Rb2 Qb1 Ra2 Bb2 Rg1 Qa1 Rgg4 Bf1 Ne1+ Ke2 Qcf5 Bg2 Qfe4 Bf3 Rg2+ Kf1 Q4d5 Be2 Rg1#
2Rq2qQ/n1rbQ2n/4qR1R/1Q2r2r/2R2qB1/K1N2R2/R1NB4/b1n3Nk b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 Kb3 e4 g5 e3 g6 a4+ Ka3 e2 g7 e1Q b6 h3 f6 c4 b7 h4 f7 c3 f5 c2 f6 h2 b5 h3 b6 Rh5 Nc3 Rf5 Qh5 Qe3 Bd2 c1N Qh8 Bd7 Ra2 Qf3 Be2 Qf4 Bg4 Nc6 b8R Re5 b7 Ra7 Rc8 Be7 b8R Rc7 f8R Na7 f7 Nf6 g8Q Nh7 Qg5 Bf6 Rb4 Bg7 Rc4 Bf6 Re8 Bg7 f8R Bf6 Kb4 a3 Re7 Bg7 Rf5 Bf6 Rf7 Qg8 Rff8 Bg7 R5f6+ Qe6 Rc2 a2 Ka3 a1Q+ Ra2 Qb1 Qh5 Qg6 Qf5 Qe8 Qb1 Qd8 Qb5 Qe3 Rf3 Qg8 R8f7 Qf4 Rf5 Ke7 d6+ Ke6 Rg5+ Kf6 Rf5+ Kg6 Rf8 Kg5 d5 Kh4 Rf6 Qe6 Rf2 Kg3 Rf1 Kg2 Rf3 Bc6 d7 Qdg8 d8N Bd7 Nc6 Qd8 d6 Qeg8 Nge2 Qe6 Rd1 h1Q Ncd4 h2 Nc2 Qg1 Rdf1 h1R Rh6 Rh2 R1f2+ Kh1 Rf1 Bc6 d7 Rhh5 R1f2 Qg2 Ng1 Qgg3 Bf5 Qgg5 Bg4 Qdg8 d8Q Bd7 Qe8 Qd8 Qe7 Rd5 Na4 Ba1 Nc3 Re5 Rf1 Qe3 Rff6 Qf4 Rf3
b2q4/QQ3bRr/N7/3QR3/Rb2rB1n/R2q1q1B/K3kr2/NnR1r1NR b - - 0 1 illegal: No possible last move
r1rb1RB1/Q6k/1R1r3N/3rRbRN/3R1K2/1Q4B1/qnqRb1Q1/4n1Nn b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kg7 d4 a5 g4 e5 b4 c5 f6+ Kg6 b6 h5 b5 h3 f7 a4 g5 a3 b7 a2 d6 h4 b6 h2 d7 c4 d5 e4+ Kf4 e3 d6 e2 Nd2 e1N Qb3 h3 Ne4 c3 Ng3 c2 Bc4 Na6 b8R Bh6 f8R Kg7 b7 Qe8 d8R Bd7 Nh5+ Kh7 Bf7 Bf5 d7 Nc5 Ba3 Na4 Bd6 c1R f3 Bg7 g6+ Kh6 Be5 Bf6 g7 Ne7 g8N+ Kh7 Nh6 Rd1 Rg8 Nb2 Rg5 Rd6 Rd1 a1R Rd2 Qg8 Re8 Qg6 d8Q R1a5 Qc8 Rb5 Qc6 Rbd5 Rbd8 Rc8 b8Q Rf8 Qa7 Qg8 Ne2 Ra8 Rf1 h1B Ng1 h2 Rb8 Bg2 Rb6 h1Q Rd4 Qg6 Rf2 Bf1 Rfd2 Qg2 Qcc2 Qe2 Qe4 Qa6 Qe2 Qa2 Qg2 Re6 Bb8 Red6 Bc7 Be2 Bb8 Nc8 Re5 Ne7 Ke3 Bh3 f4 Rfd8 f5 Re6 Ree4 Rc8 Be8 Bhg4 Bf4 Red6 Re5 Bh3 Bh2 Bhg4 Kf4 Bh3 Rg4 Bh4 f6 Qc2 f7 Nf5 f8R+ Be7 Rg5 Ng3 Bf7 Nh1 Bg3 Bd8 Be8+ Bd7 Bf7 Bf5 Bg8+
N2RR1b1/KnR1r1n1/2q3r1/1R1n2k1/bqB1Q1b1/3R1rb1/1Q1R4/B1NBN3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 a5 Kc5 e5+ d6 h5 g4 a4 d4 a3 f4 c6 b4 h3 g5+ Kf7 f6 Kg6 b6 h2 b7 a2 b5 e4 d5 e3 f5+ Kh7 f7 e2 f6 Kg6 b6 e1R Qa4 h4 Nf3 h3 Bb2 Qe8 Nc3 Ra6 Qe4+ Kh5 g6 Bg4 g7 Qe7 Bc4 Nh6 g8B Nf5 Ne2 Ng7 Rd1 a1N Rd2 Nc2 Ba1 Nb4 Nc1 Re2 Rhd1 h1B Ne1 h2 Rd3 Kh4 R1d2 Kg5 Bb3 Rh3 Bd1 Rf3 Rc3 Qe6 Rc4 Be7 f8N Qf5 f7 Qf4 Rc3 Bf6 d7 Be5 d6 Nd5 d8R Nd7+ Kc4 c5 Kb5 c4 b8R Ree3 b7 Nc5 d7 Rg6 Re8 Re2 Rcd3 c3 d8R c2 Nd7 Bg2 f8Q h1B Rbc8 Bc7 b8R Nb7 Qc5 Qf8 Qa7 Bg3 Nb6 Qb4+ Ka6 B2h3 Rc7 Bd7 Re3 Ba4 Red3 Bg4 Be6 Bg2 Na8 B2h3 Qad4 Ree3 Ne2 c1Q Ka7 Qc6 Nc1 Re2 Bg8 Be6 Qc3 Bhg4 Qb2 Bf7 Qed4 Re7 Qe4 Nc5 Rb5 Nb7 Bh7 Rgf6 Bf5 Rg6 Be6 Bg8 Rb6 Ne3 Bc4 Nd5 Rb5
2N2Nkr/1q1NBn2/1Nq1bn2/Q1Q5/rb4nR/p2K1Q2/r2R2BB/1N2N2q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 g4 e5 d4 h5 f4 c5 b4 a5 g5 a4 f6 h3 g6+ Ke8 g7 Kf7 b6 a3 b7 h4 f5 c4 d6 e4 d5 c3 d7 c2 d6 h2 b5 h3 b6 e3 Nf3 Rh5 Ra2 Ra5 Bg2 Re5 Ne1 Ne7 g8N Nbc6 b8N Rd5 b7 Qb6 d8Q Be6 d7 Ra5 Kd3 e2 Bf4 c1Q Rd2 Nd5 Ne7 Rh8 Nc8 Ra4 Qe7+ Kg8 d8Q Qb4 Qa5 Nd8 Qec5 Nf7 Nd7 Qbb2 b8B Qb7 Bfd6 Be7 Ndb6 Bf8 Rf1 h1Q Rf4 h2 Rh4 Be7 Rb2 Bf8 Be7 Qh6 Rd2 Qg6 Nc2 e1R Qf3 Re2 Ne1 Rf2 Rd1 Ra2 Rd2 Qg1 Bbd6 h1N Bh2 Nf2+ Ke2 Ng4 Kd3 Nd8 f7+ Kg7 Bh3 Qh1 Bg2 Qh6 f6+ Kh7 Bed6 Be7 f8N+ Kg8 Nfd7 Nf7 Rd1 Bf8 Be7 Qc1 Qcb4 Qcc6 Rd2 Bh6 Qd6 Be3 Qe5 Bc5 Qh5 Bb4 Qhf5 Nde3 Qfc5 Nd5 Na7 Nd8 f7+ Kg7 f8N Nf7 Qff2 Ndf6 Qf3 Kg8 Nac8
q2nK1nB/RN1B4/2bbQ1Br/bN6/R1Q1BnRp/5B2/1q1Q3k/3Brr2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 c4 Kg3 e4 h5 b4 f5 b6 a5 b7 d3 g6 h4 e6 d2 b5 d6 g7 f4 e5 a4 e7 a3 e8Q f3 c5 a2 e6 f2 e7 Qb6 c6 Rh7 c7 Bg4 c8B Ra6 Bd7 Bf5 Bb2 Bh3 Nc3 Bf5 Be2 f1Q Nh3 Qa5 Nf2 Rh8 Nd3 Nh6 g8B Rb6 Rg1 Qa8 Bh7 Bg4 Nc5 Qa7 Be4 Na6 b8Q Qf2 Nb7 Qa8 B2f3 Ng8 Qc7 Kh2 Qc4 Nc5 g3 Bf5 g4 Ne6 g5 Rh6 g6 Nd8 g7 Ra6 Qde2 d1R+ Qd2 Rf1 b6 Bg4 Bd1 Bf3 Rg4 Ra3 Nb5 Re3 Qf7 Ree1 e8B Bg2 Qe6 Qf6 Rb1 a1B Bg6 Qf2 Bf6 Bc3 Ra1 Ba5 Bb2 Qf6 Ra4 Qc3 Ba1 Qb2 Bef3 Nf7 Kc6 d5 Kc7 d4 Bfe4 d3 Bdf3 Ne7 g8B Nd8 B8f7 Ng8 Bh5 Qb4 Bh8 Qb2 Bfg6 Ba3 Bdc6 Bd6+ Kd7 Ra1 Ke8 Rae1 Qdc3 d2 Bd7 d1N Qd2 Nf2 Bd1 Qe5 Bef5 Nh3 Rg5 Nf4 Nc5 Rh1 b7 Rhg1 b8R Ne2 Rb7 Rgf1 Ra7 Bc6 Bf3 Qb2 Rg4 Bb4 Nb7 Ba5 Qdc1 Nf4 B5e4 Ne7 Q1c3 Ng8 Qd2+
1KbbN1N1/8/B1NB1pBR/kn3Qr1/n2NQqRN/2n3r1/5N1b/2Qq3r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb6 e4 a5 d4 g5 b4 f3 h4 f2 h6 a4 d6 a3 d5 g4 h7 c4 h5 a2 h6 g3 d7 g2 d6 c3 Nf3 g1R Bf4 c2 Nh4 c1B Nc3 Ba3 Qc1 Ra5 Nd1 Qc7 d8Q Bh3 Qg5 Nf6 Qf5 Qc6 d7 Bg4 d8N Rg2 Ne6 Rg8 h8N Ne8 h7 Rg1 Nd4 Qc3 N8g6 Qb3 h8N Qc3 Ne7 Rg5 Ng8 f6+ Kd5 Bd6 e5 Qh3 e6 Ra7 e7 Ra4 Nf7 Ng7 e8B Qg3 Rh2 Be7 Nd6 Na6 Bg6 Nc5 Ne8 Rh1 Bd6 Bd8 Bd3 f1N Nf2 Qf4 Be2 Kb7 b6 Nd2 b5 Nb1 Rg2 Bh3 Rg4 Nge6 Bd3 Ra7 Be2 Na4 Bd3 Ka8 Kc6 Rg7 b7+ Ka7 b8N Nbc3 Bc4 Nc7 b6+ Ka8 b7+ Ka7 Ba6 N7b5 Rb1 a1Q Rb2 Qb1 Re2 Bb4 Re7 Qc2 Kd7 Kb6 Kc8 Qcd2 Nbc6 Qd1 Kb8 Ba3 Bh5 R7g6 Rh7 Bb2 Rh6 Rg7 Ne5 Ka5 Bg6 Ba3 Kc8 Bc5 b8Q Bcb6 Qa8 Bbc7 Rg1 Rg3 Qe4 Bg4 Bh5 Rg5 Bg6 Be2 Rg2 Bc4 Kb7 Be6 Ka8 Bc8 Rg1 Rf3 Rg4 Rg3 Nec6+ Kb6 Qfe5 Rf3 Nc2 Qf5 Be7 Rfh3 Qe6 Bh2 Bd6 Rg3 Kb8 Qe5 N2d4 Qf4 Na7 Ka5 Q4f5 Rf1 Qee4 Rh1 Nac6+
Q1B3nb/qQ1Np3/2b1K2k/1qQ1n1Br/1b1rNQ1n/8/2R2QR1/Q2rB1R1 b - - 0 1 illegal: No possible last move, all moves rejected
K1b1R1r1/bB2R3/N1NB1bBr/1B1r1Qp1/k7/2q1b1BQ/2n3n1/1bN1BR2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Ke3 f5 Kd4 a5 h4 g5 e4 c6 b4 a4 h5 g3 d6 a3 Kc5 g2 d4 f4 e6+ Ke8 h6 f3 h7 a2 e5 f2 e7 Kd7 e8B+ Ke6 d5+ Kf5 e6 Ke5 e7 Bh6 d7 Bf8 d6 Ra7 b6 Qc7 d8R Ra5+ b5 Bf5 d7 Bh3 b7 Bg4 Nd2 Nh6 Ne4 Nf5 Ne2 g1B Bd2 Bg7 Bg6 Ne3 e8B Bf6 Qb1 Rg8 h8Q Ng2 Rh7 Bh3 Be1 Na6+ Kc4 c5 b8B Nb4 b6 Nc2 b7 Ra6 Kb5 Kd5 Nc1 c4 Nc5 c3 Re7 Rd6 Bfd3 f1B Na6 Ba7 Be4+ Kd4 B8g6 Re6 Bc4 Bd3 Rde8 Rd6 d8B Bc8 Qh3 Qc6+ Ka5 Rd5+ Bb5 Qc5 Bdc7 Qc4 Nb4 Kc5 Ka6 Qb3 Nc6 Qb2 Na5 Kb4 Bcg3 Ka3 Bbd6+ Qb4 Bc4 Ka4 Nc6 Qa3 Qb6 Qb3 Qf2 Qa3 Rb1 a1R Qff5 Ra2 Ra1 Rb2 Bf3 Be4 Bf1 Rb4 B1e2 Rbd4 Bc4 Bd3 Rb1 Rh4 Ra1 Rh6 Rb1 Bd7 b8N Be4 Kb7 Bc8+ Ka8 Qb4 Bef2 Re5 Nb3 Na1 Rf1 c2 Be1 c1B Na6 Bce3 Nc1 Bb1 Nd8 Nc2 Bb7 Qc3 Nc6 Rd5 Bb5+
1r1N1k2/6qn/3Qp1B1/2n1B1r1/Q3Q1b1/1n1Q4/KbR1NnQr/NRQ1n1B1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 h5 g4 c5 f4 a5 d4 e6 Kd2 c4 Kc2 c3 Kb3 c2 d6 h3 b6 h4 b5 h2 d7+ Kf7 g5 h3 b7 a4+ Ka2 a3 d5 Kg7 g6 Qf6 d8N Rh5 b6 Be7 d6 Ra6 d7 Qd4 f6+ Kf8 f5 Qd2 f7 Qb4 Ne2 Qe1 Be3 c1R Bg1 Nf6 Qa4 Rc4 Nd2 Rg5 Rc1 Rh4 Rc2 Qg3 Nb3 Nh7 Na1 Bf6 Bg2 Ra5 Be4 Na6 b8B Bb7 Be5 Nc5 Bd3 Ba8 b7 Rb5 b8Q Bf3 Qba8 Rb8 Q8e4 Bg4 g7+ Ke7 Bc7 Bb2 g8Q Rh6 Qg6 Kf8 Be5 Rhh5 Bf2 Rh4 Rb1 h1N Bg1 h2 Qg2 Nf2 Qh6+ Rg7 Qc1 h1N Qae4 Rg5 Qa4 Nf6 Qge4 Rh2 Qg2 Kg7 Be4 Nfd3 f8Q+ Kh7 Qh6+ Kg8 Qh4 Nh7 f6 Ne1 f7+ Kf8 Bg6 Nf2 Qae4 Qf3 Qa4 Qf6 Qae4 Qg7 Qa4 Bf3 Qhe4 Bg4 Bg3 Ncd3 Nb3 Bd4 Nc6 Qf6 d8Q+ Kg7 Qdd5 Ba1 Nd8 Nc5 Qdd3 Bb2 Bd6 Kh8 Bf4 Qg7 f8Q+ Qg8 Qf7 Qg7 Qc7 Kg8 Be5 Kf8 Qce3 Bc1 Ka1 a2 Qcd7 Bd2 Kb2 a1N Ka2 Bc3 Qc1 Bb2 Rd2 Nac2 Na1 Nd4 Rc2 Ndb3 Q7d6+
1RRbr1R1/2qr4/2BRR3/Q1Q2n2/1r1NRQ2/1N1p2rb/n2KbB1N/2n3k1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 Kf6 b4 a5 c4 d5 b6 g5 h6 e5 h7 e4 c5 a4 h5 a3 b7 g4 c6 a2 c7 d3 h6 d4 b5 g3 b6 e3 Qa4 g2 Nd2 e2 Rh4 Bb4 Qa5 Bd7 c8R Be6 Nf3 g1N Nh2 Qe7 Bg2 Nc6 b8R Qc7 b7 Be7 Nb3 Ra7 Kd2 Nb4 Bc6 e1R Ba3 Re5 Rd1 a1R Rg4 Na2 Bb4 Ne2 Re1 Kf7 f6 Rb5 f5 Nec1 Rge4 Bd8 Bc3 Bd7 Re6 Rb4 R1e4 Ne7 Rd6 Rf8 h8R Rg8 h7 Rg3 Rg8 Rb1 h8R Ra1 Kd1 d2 Rh6 Ra8 Kc2 d1B+ Kd2 d3 Rhh4 Ra4 Ree6 Be2 Rhe4 Rc4 Bd4 Ra4 Bf2 Rb4 Be1 Ra7 Ra8 Rb1 b8Q Rab7 Qba7 Rb8 Q7c5 R4b7 Nd4 R1b4 Nb3 Qb6 R6e5 Bc7 Rcd8 Rc8 Rb8 Be6 R8d7 Re8 Rdd8 Ra7 Rdc8 Bd8 Red4 Rd7 Re3 Bd5 Ree6 Bg2 Rde4 Bh3 Rg7+ Kf8 f7 Qc7 Rg5 Ng6 Rgg4 Kg7 f6+ Kh6 Rg5 Ne7 Rg8 Nf5 f8Q+ Kh5 Bd5 Ne7 f7 Bhg4 Ba8+ Kh4 Bc6 Kh3 Qh6+ Kg2 Qf4 Nf5 f8N Bef3 Nh7 Bh3 Ng5 Bd1 Ngf3 Be2 Nfd4 Kg1 Bf2+
b1R2Q1k/Q2N1bRN/Qnq2N1N/n3pK1B/n2N3B/2b4r/r7/Rr1N2n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Ke4 h5 f4 c5 d4 a5 g4 e5 b4 a4 g5 a3 f6+ Kh7 d6 h3 b6 a2 f7 h2 d5 h4 d7 h3 f5 c4 b7 c3 d6 c2 b5 Qb6 d8R Ra6 f6 Ra5 d7 Ra4+ Kf5 Rd4 Nf3 Rc4 Rg1 h1N Qe2 h2 Nc3 Qd6 b6 Qc6 Rb1 a1N Nd1 Nf2 Nd4 Nb3 Ra1 Rb4 Qa6 Bc5 Be2 Na5 Bd2 c1R Be1 Rb2 g6+ Kh6 f8N Ra2 g7 Rb1 f7 Nf6 Bg4 Nh3 g8N+ Kg7 Re8 Rh6 Nh7 Ne4 f8Q+ Kh8 Bf3 Rh4 Bh5 Bb4 Rg7 Ng1 Bg3 Rh3 Bh4 Nc5 Rd8 Bd2 Re8 Ne6 d8N Nd7 b8Q Bc3 b7 Nec5 Qba7 Na4 b8N Ndb6+ N8e6 h1B Nhf6 Qd5 Rd8 Bb7 Rc8 Ba8 Nbd7 Qc6 Ng5 Bd5 Ngh7 Bf7 Nh6+
2Brb2k/pN1R1rr1/2QR1N2/1N2q1NN/1B6/bBRn4/bN1n1Q2/K2b2n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kg7 d4 e5 Kd2 h5 Kc2 c5 Kb2 e4 f4 e3 g5 h3 b6 c4 b5 e2 f6+ Kh7 f5 e1R f7 h4 g6+ Kg7 b7 h2 d6 h3 d5 Qc7 b6 Re7 d7 Qc6 d8N Qd7 d6 Rh5 f6+ Kh8 g7+ Kh7 Ne2 Ra5 Nd2 Qc7 d7 Rae5 Nf4 Re3 Qc2+ R7e4 Ra3 c3+ Ka1 Re1 Nh5 Be7 f8Q Na6 b8N Nc5 b7 Re3 f7 Nf6 g8B+ Kh8 Na6 Nd3 b8N Rf3 Nc4 Qe5 Nb7 Rg4 d8R Be6 Bd2 Ne4 Nc7 Rg7 Nb2 Ba2 Nb5 Rf2 Be1 Nd2 Rd7 Bb4 Ra6 Ba3 Rad6 Rf6 Rg1 h1B Rg3 h2 Bh3 Bf3 Qe8 h1B f8N Rf5 Nh7 Rff7 Ng5 Bd1 Qc8 Be4 Qc6 Bg6 Rf3 Rf5 Bg4 Be8 Bb3 Rff7 Rh3 Nc4 Qd2 c2 Qf2 c1N Bb4 Ne2 Rf3 Ng1 Rh3 Nc1 Rc3 Nd2 Rd8 Qe3 Bc8 Nd3 Nd7 Qe5 Ndf6 Rb8 Bce6 Ra8 R8d7 Rc8 Rc7 Rd8 Bc8 Qd4 Re7 Qe5 Red7
1QbR1N1b/6qr/2RQr1Rq/r5Nr/3R4/B1K2Rrn/2p2B1R/2nB1k1N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 f6 a5 f7 c4 g5 e4 f5 e3+ Kc3 h3 g6 e2 f6 e1R b6 h2 b7 h4 g7 a4 b5 a3 b6 a2 Nd2 h3 Ngf3 Nd7 b8B+ Qc7 b7 Ra5 Ba7 Ne7 g8R Rh7 b8Q Ne5 Rg6 Nd3 Ng5 Re6 Be2 Bg7 f8N Bh8 f7 Rh5 Rb1 a1R Nf1 R1a3+ Rb3 Rh7 Ng3 Rh5 Bb2 Nc1 Qd2 Rh7 Bd1 Rh5 Rg1 h1R Rg2 h2 Bb6 Rg1 Nh1 Rh7 Rf2 Rg3+ Rf3 R3a4 Ba3+ Rc5 Rb2 Ra5 Nf2 h1Q Ba7 Qh4 Nh1 Qh6 Qd3 Nf5 Rh2 Ne3 Qd2 Ng4 Bb6 Nf2 Qf4+ Ke7 d6+ Kd8 d7 Ke7 d8R Nh3 Ba7 Qe5 Rd6 Qeg7 Qe5 Rcb5 d5 Rc5 Qd4 Rcb5 Rc6+ Rc5 Kb4 c3 Qde5 c2 d6+ Kd8 d7 Ke7 Qf4 Rd5 Bf2 Rde5 Rc7 Kd6 Kc3+ Kd5 d8R+ Rd6 Nd7 Rde6 f8R Rf5+ Rff6 Rfe5 Rc6 Rf5 Nf7 Rh5 Qfd6+ Ke4 Nf8 Rgg5 Be1 Rg4 Rf4+ Ke3 Rd4 Rg1 Ng5 Rg3 Bg4 Rf3 Bf2+ Ke2+ Kb4 Kf1 Rf7 Rc3 Bd1 Rg3 Rf3 Ra8 Kc4 Ra5 Kc3
BB2q1nb/4RnQR/5Nb1/1RR2r2/1Q1R2K1/Rq2NNnB/4r1p1/1n2b2k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 h4 g5 d4+ Kd6 b4 a5 h6 f5 b6 c5 e5+ Ke7 h5 c4 d6+ Ke6 h7 Kd5 b5 a4 e6 a3 d7 c3 e7 c2 e8B a2 b7 Nc6 b8R Bh6 b6 Ra5 b7 Qb6 Qe1 Nd8 Na3 Nf7 Nc4 Qb3+ Be3 c1B Qb4 Bd2 Bh3 Bg7 h6 Be1 d8R+ Bd7 Rc1 a1Q Rc3 Qaa3 Rdc8 Qaa4 Rh2 Qb5 Re2 Qc6 Bf2 Qe6 Bg3 g4+ Kg2 Qe5 Ne3+ Ke4 R8c5 f3+ Kh2 f2 Nf3 f4 d5+ Qc4 d6 f1N+ Kg2 Nd2 Ra3 Bf5 d7 Bg6 d8R Nb1 Rdd5 Qe7 Bc6 Qe8 Rbd8 Bd4 b8N Qb3 Nd7 Rb5 Bh2 g3 Ba8 Ra5 Bg4 Rb5 Kh3 g2 Nf6+ Kd3 Ng1 f3 Bb8 f2 Nf3 f1N Be6 Ra5 Kg4 Ng3 R8d7 Rb5 Re7 Ra5 Rec2 Rb5 R2c4 Ke2 Bc8 Bb2 Rcd4 Ra5 Rb5 Kf2 Rdc5 Ba1 Kh4 Bb2 Bh3 Bbc3 Kg4 Bb2 Ng5 Kg1 Nf3+ Kh1 Ra7 Ne7 Rab7 Rf8 h8R Ng8 Re7 Ra6 Rh7 Re6 Rg7 Ba1 h7 Bac3 h8Q Re5 Nf1 Re2 Rh7 Bb2 Qg7 Ba1 Rdc4 Bac3 Ne3 Bd4 Nfd5 Bf6 Rd4 Be5 Qh6 Bh8 Qg7 Nd8 Nc2 Rf5 Nf6 Nf7 Ne3
3Rn1nr/1K5b/1R2N3/RN1r3q/1b1q1qQ1/Rr1B2B1/pRBR1N1q/k1Q5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 g4 h5 d4+ Ke4 b4 e5+ d6 c6 f4 h3 d5 h4 f6 h2 b6 a4 b7 h3 b5 a3 f5 Ra5 f7 Ra7 b6 Rh5 f6 Qc7 g5 Qe7 g6 Rh7 g7 Qd7 Bf4 Qg4 Qc1 Bf5 Bg3 Rh8 Bc4 Be7 f8N Bh7 f7 Ra5+ Bb5 Qh4 Ne6 Qf4 f8Q Nd7+ Kc4 c5 b8R Qd2 b7 Ndf6 d7 Ne8 d8R Ke3 d6 e4 d7 a2 Na3 Bd6 Ra8 Be7 Ba6 Rb5 b8R Rb3 Rb4 Bd6 Kb5 Kd3 Kc6+ c4 Nb5 c3 Qf4 c2 Kb7 e3 Qh4 e2 Rb1 e1R Qg4 Re5 Rb2 Rd5 Ra4 Bb4 Ra3 Qe3 Rdb8 Qd4 d8R Ngf6 g8B Kc4 Bf7 Ng8 Ra7 Kd3 Bg6+ Kc4 Qe1 c1Q Bb1 Qcf4 Ra5 Rc3 Rd2 Kb3 Qc1 Re3 Ne2 Rd3 Nec3 Rf3 Rhd1 h1Q Ne4 h2 Nf2 Qg2 Rc2 h1Q Rdd2 Qh5 Rc6 Qgh2 Rb6 Qde5 Nbc7 Rc3 Bad3 Qed4 Nb5 Rc2 Qcd1 Kb2 Qc1+ Ka1 Ra3 Rb2 R7a5 Nc7 Rbc8 Ne8 Rcc2 Rb3 Rb2 Qh1 Be2 Q1h4 Bed3 Qh2 Bbc2#
q4QB1/R1b1bRR1/R5RK/8/2N3N1/bQkrp1Bn/qR3Q1q/N1r1nb2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 Kg5 Kd4 g4 c5 f4 h5 b4 a5 b6 e5+ f6 a4 d6 h3 f5 a3 b7 c4 b5 a2 b6 c3 d7 e4 Qe1 c2 Nf3+ Kd5 d4 h2 Nbd2 h4 Bc4+ Kd6 d5 Kc5 d6 Kb4 Nb3+ Ka4 Nfd2 Kb4 Qf2 h3 Rg1 Qc7 d8R h1Q d7 h2 f7 Qg3 f6 Bc5 f8Q Na6 b8R Ne7 f7 Qhg2 b7 h1Q Bd5 Qd6 Nc4 Qdh2 Bf4 e3 Bg3 c1B Re8 Kc3 d8N Bb4 Nc6 Bca3 N6e5 Ng6 Re6 Nc5 Ra6 Nf4 Ra7 Nh3+ Kg6 Ba5 g5 Bd8 Ng4 Bc7 Kg7 Be6 g6 Nd3 Ra6 Rg8+ Kh6 Ne1 g7 Bf5 Be6 Bh7 Ra7 Rh8 g8R Bd3+ Kg7 Rh5 Ra6 Rg5+ Kh6 Bf1 Rg6 Rc5 Rg7 Qf3 Ra7 Rb5 Qe8 Nd3 Bf4 Ne1 Nge5 Qe2 R1g6 Qd2 f8R Be7 Ng4 Rd5 Ra5 Rd7 Bg8 Rd5 Rff7 Rd3 Qf8 Ra6 Bg3 Ra7 Rb1 a1B Ra8 Bb2 b8Q Rb7 R8a7 Bba3 R5a6 Qa2 Na1 Rb3 Qf5 Qa8 Qf2 Rb2 Qb6 Rc2 Rb2 Rc1 Qb3+
R1BR1NN1/1b1rq3/rn1R3r/2RNrb1Q/3Bpq2/2b5/1k1R1RQ1/3QnK2 b - - 0 1 illegal: No possible last move, all moves rejected
1Nb2k1n/b3nBN1/Q1r1Rq2/2n1N1QQ/2p4R/3Q1B2/1bKBq3/rQ3Qb1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 c5 f4 h5 b4 e5 d4 a5 Kd2 h3 b6 a4 g5 h4 b5 e4 f6 c4 f5 h2 g6 h3 d6 a3 f7+ Kd7 f6 e3+ Kc2 a2 g7 e2 d5 e1B b7 Bh4 b6 Rh7 Nc3 Nh6 g8B Rg7 Ne4 Ng4 Nf3 Ra3 Be2 Rb3 Ng3 Nh6 Nf5 Rb5 Bd2 Rg6 Ng7 Nc6 b8Q Ra5 b7 Ne7 Qf1 Ra4 Re1 a1B Qa8 Bg5 Qa6 Be3 b8Q Bc3 Qb1 Bb2 Bd1 Bg1 Re6 Qe8 Ne5+ Kd8 d7 Ra1 Bf3 Ba7 Rg1 h1N Rg4 h2 Rh4 Nf2 Qh3 h1Q Qg4 Qf1 Qh5 Kc7 d8N Qe2 Ndc6 Qd8 Nb8 Nd3 Qg5 Qd6 Qh5 Qc6 d6+ Kd8 d7 Nc5 Qg5 Nef5 Qh5 Bd6 Qg5 Ne7 Qh5 Bc7 Qg5 Bcb6 f8Q+ Kc7 Qe8 Nf7 Bh1 Rh6 Bf3 Nh8 Qeh5 Kd8 f7 Qd6 Rg6 Qf6 f8Q+ Kc7 Bf7 Kd6 d8Q+ Nd7 Bc6 Bg1 Qdb6 Nc5 Qf1 Bbd4 Qbb1 Bb2 Qg8 Nd5 Ba8+ Ke7 Qh7 Kf8 Bb7 Ne7 Bf3 Qf4 Rb6 Rc6 Qe4 Qf6 Qd3 Rc7 Rd6 Rc6 Re6
1rBN1kNn/7K/NBQB2rR/3N1qp1/1b3q1n/2b2N1Q/n3bN1n/RR6 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 e5 Ke3 g5 Ke4 a5 b4 c5 d4 g3 f4 c4 h4 g2 f6 a4 d6 c3 f7+ Kd7 Kf5 c2 Kg6 e4 d5 a3 h5 e3 b6 e2 b7 e1Q b5 a2 h6 Qe5 f5 Bg7 f8B Ke8 b6 Na6 b8N Qe3 h7 Bd7 f6 Qh3 b7 Nb4 Na6 Rc8 b8R Rc6 Nf3 g1N Be3 c1N Nbd2 Qg2 Bb6 Nce2 Rh6 Nc1 Qc2 Qc8 Ne4 Qh2 Nf2 Qf4 Bh3 Nce2 Qc3 Bg4 f7+ Kd7 Be7 Nf6 f8N+ Ke8 Ne6 Rg8 h8Q Rf8 Rb1 a1B Ra8 Na2 Qc1 Bc3 Nec7+ Kd7 Ra7 Bb4 Qc4 Re8 Bf8 Kd8 d7 Rce6 Bd6 Rf8 Be5 Ke7 d8N Qd7 Nf7 Rb8 Qh7 Kf8 d6 Qb5 d7 Rc6 Nd2 Nf3 d8N Re6 Nd5 Bh8 Rh5 Nh4+ Kh6 Bf3 Qc6 Qd3 Qf5 Ng4+ Kh7 Nh2 Rh6 Rg6 Qfd7 Bh5 Nf3 Qdf5 Bec7 Bhc3 Qde6 Qd3 Qe3 Qde4 Bc8 Qef5 Qd3 Ng3 Qf1 Ne4 Qh3 Nd6 Be6 Nc8 Bd6+ Ne7 Bc8 Bg4 Nd4 Be2 Nf3 Qe6 Rh5 Qee4 Nh6 Qef5 Ng8 Nc1 Rh6 Re6+ Rg6 Rf6 Nac7 Re6 Raa1 Na2 Na6 Rf6 Be5 Rd6 Kh8 Rf6 Rh6 Neg6+ Kh7 Nh8+ Rg6 Q5g4 Rh6 Rg6 Bec7 Qgf5 Bd6+
1n5K/QQ2B3/r2BRNB1/pB2R2B/1r2N2b/Q1n2k1q/r1b2q2/Bb1Rr3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 h5 d4 a5 g4 c5 b4 f3 g6 f6 g5 f2 b6 c4 b5 c3 b7 h4 b6 h3 g7 c2 g6 h2 Ba3+ Kd7 Kf5 c1Q e4 Qb2 e5 Qb4 d6 Kc6+ d7 Kd5 e6 Qc5 e7 Rh6 e8B Na6 b8Q Qce7 b7 Rh8 Bd6 Qc7 Qd3 Qb6 Qa3 Qb2 Nf3 Qf7 Nbd2 Qc3 Qa7 Qc5 b8Q Be7 Ne5 Qc3 Bb5 f1B Ng4 Qh3 Rd1 Rh4 Ne4 Bd3 Rhe1 h1R Qbb6 Bb7 d8B Rh2 Re3 Bc6 Qbb7 Bb1 B8c7 Rd2 Be5 Ra2 Bcd6 Qf8 Bb4 Rd8 Bd3 Rh7 Nf2 Nc7 Bc3 Na6 Ba1 Nb8 Bc2 Kc4 d5 Rh6 d6 Ba4 d7 Rc8 Be4 Bac2 d8B Rc5 Ke6 f5 Bh2 Bg5 Be7 Nf6 g8R f4 g7 f3 Bh5 Rb5 Bf4 Rb4 Bc6 Qd8 Kf7 Qd2 Rf8 Qd4 g8B Ne4 Bh7 Bh4 Kg8 Nc3 Rf5 Qc5 Bd7 Ra6 Re6 Qb6 Ne4 f2 Rb5 f1R Kh8 Re1 Bfd6 Qd4+ Rbe5 Qf2 Rc1 Kd3 B7g6 Ke2 Rd1 Kf3 Ba4 Qhg2 Bb5 Qh3 Ngf6+
r4N2/2R2b1K/nBp1N3/3N2R1/QrB2N1N/1q1n1qQQ/2k1q3/b1B1Nq1r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 f4 a5 g4 h5 f6 e5 f7 h3 f5 h4 g5 c6 f6 a4 g6 h2 b6 h3 g7 a3 b7 a2 d6 Qd7 d5 Qd8 d7 Rh7 Kf5 e4 Kg6 e3 d6 e2 Na3 e1R Ne2 Rh8 Nf4 Qa5 d8N Qa6 d7 Nh6 g8N Qa7 Rg1 h1Q Nc2+ Kb3 Ne3+ Kb4 Qa4+ Kc5 b4+ Kd4 b5+ Kc3 b6 h2 Bc4 Bg7 f8N Rh7 f7 Qf3 Nde6 h1Q d8B Qd1 Neg2 Qb3 Ne7 Kc2 Ned5 Na6 b8Q Ng4 b7 Qf2 Bb6 Re4 Qe5 Bh8 b8Q Qe2 Qh5 Nf2 Qh3 Nd3 Qe5 Bf6 Qg5 Bd7 Qgg3 Be8 Rb1 Bc3 Ra1 Rd4 Rb1 Rh4 Kg7 a1Q N8g6 Rh5 f8N Bf7 N6h4 Qa3 Nd8 Ba1 Nde6 Re5 Kh7 Ree4 Bb5 Rb4 Bc4 Re3 Bb2 Rf3 Rbe1 Rf1 Bc1 Qf3 Re5 Qb2 Rg5 Rd1 Re1 Qhf1 Ree5 Re1 Ref5 Qe5 Rg7 Qee2 Rfg5 Be8 Rc7 Bf7 Ba7 Q1f2 Bc5 Rh1 Bb6 Qff1 Ne1+
Q2bB3/1Bq2b1r/R1p2qkB/n2N3R/3N1r2/KNn2N2/6qN/b2b1NQR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 h5 f4 a5 d4 e5 Kd2 e4 Kc3 e3 Kb3 a4+ Ka3 h3 f6 c6 f5 h2 d6 h4 g5 e2 d7 e1B b6 h3 b7 Bh6 g6+ Kf8 g7+ Kf7 b5 Qb6 d8N+ Ke8 f7+ Ke7 f8Q+ Kd7 d5 Qd4 b6 Qc4 f6 Qe2 f7 Bc3 d6 Qe6 Ba6 Qf5 Nd2 Qa5 Ne6 Nf6 g8B Rh7 Ngf3 Nd5 Nc7 Bg5 Nf1 Bd8 Bh6 Ra7 Ra2 Ba1 Qc1 Nc3 Nd5 Ke6 d7 Kf5 Qe1 Bc7 d8N Kg6 Ne6 Bd8 Neg5 Nd7 b8N Ne5 b7 Bg4 Nd7 Qc7 b8R Rb7 Qc1 Rb4 Nc5 Rf4 Nb3 Be6 Bb7 Nc4+ Kb4 Na5+ Ka3 Bg4 Ra8 Bh5 Ra6 Bg4 Re2 Be6 Re5 Bg4 Rg1 h1Q N3h2 Qg2 Rh1 Be2 Ngf3 Bd1 Ng4 h2 Rh5 Bg5 Qa8 Bd8 Rg1 h1B Ngh2 Qg3 Qe3 Bg2 Qe1 Bh3 Qf2 Be6 Rh1 Qg2 Qg1 Ne4 Kb4 a3 Ka4 a2 Kb4 Bg5 Ka3 Nc3 f8N+ Kf5 Rh4 Bf7 Ne6 Bd8 Ned4+ Kg6 Rh5 Bb2+ Kb4 a1Q Qf2 Ne4 Nf5 Be8 Qg1 Bh8 Be6 Bf7 Bd7 Qae5 Ka4 Qed6 Be8 Ba1 N5d4 Qf6 Kb4 Nc3 Ka3
3Qqq2/2n2p1b/4B1bn/1RRbr1Br/2B1QN1B/bR1n4/Q3KB1k/2NB4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 b4 Ke5 d4+ Kd6 b6 h5 e5+ Ke7 b7 a5 e6 Kd6 g6 c5 g5 h4 e7 f3 e8B a4 g7 f2+ Ke2 c4 g6 c3 b5 c2 b6 a3 Nd2 h3 Rb1 h2 Qe1 a2 Ba4 a1Q Nh3 Qa3 Nf4 Bd7 Rb3 Ne7 g8B Rh6 g7 Be8 Bh7 Qa2 g8Q Qd7 Qg2 Ra5 Bf5 Ng8 Be6 Na6 b8R Rh5 b7 Nh6 Rb5 Qe7 Nb3 Nc7 Be3 Bc6 Nc1 Qb2 Rc8 Qd8 b8B Qa3 Ba7 Qe8 Qe4 Bb7 Qd2 Ba8 Rg1 h1B Rg3 Bg2 Rf3 Bh3 Rg3 Bf5 Bb3 Bh7 Rh3 Ke7 d6+ Kf6 d7 Bd5 d8Q+ Be7 Bc4 Kg5 Bg2 Qd6 Bf3 Qb4 Rg3+ Kh4 Bb6 Na8 Rcc5 f1B+ Kf2 Qa3 Bd1 Nc7 Kf3 Bh3 Ke2 B3f5 Bf2 Qb4 Rb3+ Kg4 Be3 Kg3 Bf2+ Kh2 Bh4 Bfg6 Bg5 Bb7 d5 Qa3 d6 Bd5 d7 Bd6 Rc6 Bf8 Bf2 Bd6 Na2 Be7 Rcc5 c1N+ Ke1 Nd3+ Ke2 Bd6 Nc1 Bf8 Rb6 Rb5 Qa2 Qa8 Rb7 Ra5 R7b5 Bd6 Rc6 Ba3 Rcc5 Qc8 Qf6 Qa8 d8B Qf8 Be7 Qae8 Bgh4 Re5 Qh8 Rh5 Beg5 Qg7 R3b4 Qd8 Rb7 Bc6 Rd5 Qa8 Qe8 Qf8 Rb3 Qc8 Qd7 Qce8 Qd8 Rc5 R7b5 Bb7 Rd7 Re5 Rdd5 Bc6 Rdc5 Ba8 Ra5 Bd5 Rab5
2kq3b/1b1pN2B/N6R/BrrR4/b1rRR3/1QN5/1QR1K1n1/nbRB3q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 g4 e5 f4 h5 b4 a4 g6 e4 g5 e3 b6 e2 c5 a3 b7 d3 b5 a2 c6 h4 c7 h3 g7 h2 b6 Be7 g6 Bf8 f6 Rh4 f7+ Ke7 f5 Qe8 f6+ Ke6 Nh3 Rg4 Nf4+ Kd6 Nd5 Nh6 g8R Nf5 g7 Nh6 Bd2 Na6 b8N Nf5 b7 Rc4 Qb3 Nc5 Nbc3 Ra5 Ne7 Nh4 Na6 Rb5 b8Q Bb7 Rc1 a1Q Bg2 Qd8 Bf3 Be4 Rh8 Bf5 g8B Bg7 Rh5 Bh8 f8R Ng2+ Kf2 e1R f7 Ree4 Bd1 Re5 Bh7 Be4 Be1 d2 Re8 Bb1 f8R Rg5 Qb2 Nb3 Rf4 Rgd5 Ke2 Rdc5 Rhf1 h1B Rh6+ Bg6 Rg4 Qb1 Qb7 Na1 Rf5 Qe4+ Kf1 Qd5 c8R Qc6 Rd4+ Qd5 Bg4 d1B Re5 Ba4 Bd1 Rbb4 Ke2 Rbb5 Rh3 Bb1 Rhh4 Ra5 Q7b3 Rab5 Rh6+ Bg6 Rhh4 Ne3 Nb1 Rc7 Rh2 Rcb4 Rg8 Rc6 Nd2 Bb1 Rgg4 Rc3 Rcc4 Rc5 Rgf4 Rbb5 Rff5 Rd3 R4c2 Rdc3 Rhh5 R3c4 Rh6+ Bf6 Nb4 Kc7 Ne4 Bh8 Na6+ Kb7 Ba5 Bg2 Ng6 Kc8 Nc3 Qe4 Rfh5 Qeh4 Re8 Bb7 Rhd5 Ng2 Ree4 Qh1 Ne7+
1N5q/N1pQBQ2/3Rbq2/r2R2rn/1r1R2n1/k1BQ3B/R2K1b1r/RR5n b - - 0 1 illegal: No possible last move, all moves rejected
qb3N2/1p4NB/1K1B1RRq/3k3q/3N1Bq1/1n1Q1r1r/1Qnb1N2/NR2Nb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 g5 d4 c4 a4 b3 f4 b2 h4 e4 a5 c3 a6 e3 h6 e2 h5 e1B a7 c2 f6 g4 f5 g3 d6 g2 d7 Bd2 h7 Qe8 h6 Nc6 d5 Nd4+ Kb6 Qe3 d8N+ Ke8 f7+ Kd7 d6 Qg3 f6 Qf3 Ra6 Be3 Nh3 g1Q Bd3 Qg5 Na3 Qgd5 Nc6 Ke6 d7 Bb4 d8N+ Kd6 f8N b1Q f7 Qff5 Nde6 Qc4 Nf2 Bd7 Ng7 Rb8 a8R Nb3+ Nd4 Qa2 Qe2 Bg5 Bf4+ Kd5 Rb1 c1Q Nac2 Nf6 Na1 Bb5 Nfe6 Bf8 Ndc2 Ng4 Ne1 Bd6 f8N Ne3 Nd4 Nc2 Qd2 Qh3 Bf5 Qd1 Qd3 Qdh5 Bg6 Rd8 Rc8 Rd7 Rc6 Bb8 Rf6 Rf7 Bd6 Bd2 Bf5 Rg8 h8Q Qe3 h7 Qeh6 Bg6 Qc8 Bf4 Qcg4 Rf5+ Be5 Ne8 Rfg7 Nc6+ Ncd4 Qf1 Nc2 Ka7 Qgh4 Qh3 Be2 Qd3+ Kc5 Rg5 Re7 Rg2 Bc7 Qb2 Re3 h8B Rf3 Bhe5 Bf1 Bh7 Rgg3 Ng7 Rh3 Nd4 Kd5 Rg5 Q4g4 Rg6 Bda5 Raf6 Bd2+ Qa6 Bb8+ Kb6 Qa3 Qd3 Qa8 Bd6
3Q1n1K/2RBqkr1/2Nb4/2Qpb2b/2NQR2n/1r1R1r2/2bB1NQ1/rQ4Q1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 a5 Kd3 g5 Ke4 d5+ Ke5 g4 f4 a4 h4 g3 c4 g2 b4 e6 b6 d3 b5 a3 f6 d2 c5 a2 c6 Ba3 b7 Na6 b8Q Rh7 c7 Kf8 f7 Kg7 f8Q+ Kh8 h6 Bd7 c8R Ra7 f5 Re7 b6 Re8 f6 Bc6 b7 Nc5 h7 Ra8 f7 Ra7 h5 Ra4 Rh4 Ra7 Rc7 Ba4 Nh3 g1R Bb5 Qe7 Bd7 Rg7 Re4 Bc2 Qg1 d1B Nd2 Rd8 Rb1 a1R Nf2 Ra4 Rb6 Rb4 Nc4 Rb3 Bd2 Rc8 Qd8 Bb2+ Kf4 e5+ Kf5 Ne6 f8Q Ba3 Qg2 Bd6 Qa7 Ra8 b8N Be2 Qa2 Raa3 Nc6 Bf3 Qb1 Bfd1 Qf6 Nf8 Qfg6 Rf3+ Bf4 Be2 Rb3 Bed1 Rd3 Rb3 Qg1 Be2 Q6g2 Bed1 Red4 e4 Qc8 e3 Re4 e2 Qd8 Rfg3 Bd2 e1B Qc8 R7g6 Qd8 Kg7 h8Q+ Kf7 h6 Bh5 Qc3 Rg7 h7 Re3 h8Q Rf3+ Bf4 Bd2 Qa5 Bc3 Qc5 Rfg3 Bd2 Bce5 Qh6 Rf3+ Qf4 Ng6 Na7 Nf6 Nc6 Rc3 Kg5 Rb3 Kh6 Nh4 Qfe3 Nh7 Qed4 Rg5 Qa7 Nf8 Qac5 Ne6 Kh7 Rg7+ Kh8 Nf8 Ba5 Rf4 Bc3 Rf3 Bd2
BnB1R3/p1n1b1B1/5Q1K/N1R4n/1nR1b1q1/1Q1Q1b2/1r2kb1R/2Rr1NR1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 b4 e5+ f6 c5 f4 h5 g4 e4 f5 c4 d6 c3 d7 h3 b6 e3 b7 c2 b5 h4 b6 h2 Ba6 h3 Nf3+ Ke4 d4 e2 d5 e1N d6 Qc7 d8Q Nd3 f7 Nc5 d7 Rh7 f6 Bg7 f8Q Qg3 f7 Bc3 Na3 Nf6 Nc4 Ng8 Bb2 c1B+ Nfd2+ Kd3 Rg1 h1N Qb3 h2 Na5+ Ke3 Nf1+ Kf3+ Kg6 Nc6 b8R Bd2 g5 Ne6 b7 Nc7 Rc1 Nf6 Qd6 Rh8 f8R Nb4 Qd3+ Be3 Re8 Qg4 Re5 Rh3 Rc5 Ng3 Rc4 Ngh5 Kh6 h1B Qf8 Rh2 d8R Rh4 Re8 Bf5 Rbc8 Be4 b8R Rh2 Rb5 Rb8 Rbc5 Rd2 Bb7 Kf2 Ba8 Bhf3 Rcd8 Bed4 g6 Nd7 g7 Rd1 g8B Be3+ Qf4 Bf6 Be6 Be7 Bg7 Rb6 Rh8 Nb8 Rde8 Ke1 Qg5 Bf2 Qf6 Rb5 Bc8 Rb7 Qd5 Ke2 Qdd4 Rb5 Rh7 Rb7 Qdd3+ Ke1 Qdd6 Nd3 Qc2 Rb2 Qb3 Nb4 Qdd3 Ng3 Rhh8 Qe6 Kg5 Qh3 Rh4 Nh5 Kh6 Qg4 Qdd4 Ke2 Rh2 Bd3 Qdd6 Bde4 Qdd3+
5n1n/B1r2RKR/N1R1QN2/1Bb1r2R/qR3pk1/pr1Q3q/1QN1R3/2n2b2 b - - 0 1 illegal: No possible last move
2K1b3/2nRB3/1N2N3/3Rb1R1/1Rp1qN2/p2QQn1R/brr1BRB1/4kqq1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 a5 g4 e5+ d6 h5 d4 c6 b4 h3 b6 a4 g5 h2 b5 a3 g6 h4 g7 h3 f6 Qc7 b7 Bg4 b6 Rh7 f5 Bh5 d5 Qc8 f7 Bg6 f6 Qd8 Be2 Nh6 g8B Bf5 Bg5 Bd7 Nc3+ Kf5 Qd3+ e4 Na4 Bg7 f8N Be8 f7 Qf6 d7 Ng4 d8R Ne5 d6 Nf3 d7 Kg4 Ne6 Kg3 Kd6 Kf2 Kc7 e3 f8R c5 Kc8 Na6+ b8Q Nc7 b7 c4 Ra2 Ke1 Nb6 Qe5 Rf7 Qe4 Be7 Be5 Rg7 Ra5 Bf7 Rb5 Qa7 Rb2 b8R Rh5 Bg8 Rg5 Bf7 Rg2 Rg5 Rf2 Bh5 Rg2 Bf1 Rgc2 Bg2 e2 Rb7 Kf2 Bg4 e1Q Ne2 Qg1 N2f4 Ke1 Rb8 Nd2 Be2 Nf3 Na8 Qf1 Qae3 Qg1 Nb6 Qf1 Rg1 h1Q Rb7 Qh2 Rh1 Qhg1 Rb8 Rb1 Rb2 h2 Rb4 Rbb2 Rb7 Bf7 Rf8 Be8 d8R Qgf2 Rg1 h1B Rd5 Qg3 Bh3 Qh2 R1g3 Qhg1 Ra7 Ba4 Rf6 Bb3 Bg2 Ba2 Rh3 Nh4 Ng6 Na6 Rf2 Qf4 Rd8 Qd4 Ba8 Bc6 Rb7 Be8 Ngf4 Qd5 Rd6 Qd4 Rbd7 Nc7 Bg2 Qe4 Rd4 Nf3 R4d5
3r2qB/2Nbnr2/RQ5b/N2Rq3/pB1Br3/R1K1n3/p3B1Qn/BN1B3k b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Bd7 hxg5 Bc8 g4 Kf7 d4 e5 Kd2 c5 b4 h5 f4 a5 b5 e4 f6 Kg6 b6 a3 f7 a4 f5+ Kh7 d6 c4 b7 h4 g6+ Kh6 g5+ Kg7 d7 e3+ Kc3 e2 d5 e1N d6 h3 Qd4+ Qf6 d8B h2 d7 Bd6 f8N Nd3 Ne2 Qe5 Bb6 Rh5 d8R Rh4 Bb2 Nh6 Nc1 Nf2 Nb3 Nfg4 Na5 Nc6 b8B Bd7 Be2 Ne7 Ra2 Ra7 Ba1 Ne3 Bc5 Nhg4 f6+ Kh8 f7 Kg7 Rf1 h1Q Rf6 Nh2 Bb4 Rc7 Ba7 Qa8 Bd1 Bc5 Ra6 Re4 Bb6 Bc8 Rd6 Bd7 Rd5 Rc8 Be2 Rd8 Ne6+ Kh8 g7+ Kh7 g8B+ Kg6 f8B Kf5 Rb2 a2 Nc7 Kf4 g6 Kg3 g7 Kg2 Rb3 Kh1 Ra3 Qc8 Bh7 Qb8 g8Q Bd6 Kd2 c3+ Kd3 c2 Kc3 Bc5 Bg7 Qc8 Bh8 c1R+ Kd3 Rf1 Kc3 Rf7 Qg5 Rg4 Bc2 Re4 Bcd1 Qa8 Rd6 Qad5 Qg3 Qde6 Rd5 Qg6 Qg4 Qg8 Ba7 Nc8 Qg6 Bf8 Bac5 Ne7 Qb6 Qeg3 Qd2 Bh6 Bcd4 Qe5 Qc2 Rg4 Qcg6 Re4 Qg2+
2K5/2N3qq/N1Bk1N2/3R1RQp/2p2BBq/rnNN2b1/1rNQb3/3n1Rr1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 h5 d4 a4 b4 h3 d6 c4 Kd5 e4 f6 h2 f7 a3 b6 e3 g5 a2 b7 e2 g6 e1R g7 Qh4 b5 Re2 f5 Re3 f6 Qg3 b6 Na6 b8N+ Kd8 Kc6 Re6 b7 Qb3 d5 Qg3 Nc3 Nc7 Be2 Re7 d7 Nh6 g8B Qh4 Nh3 Nf5 Nf4 Re5 Na6 Nb5 b8N Ng3 Nc7 Nf5 Nba6 Ra7 Re1 h1Q Nd3 Rh6 Qd2 Qf2 Bg4 Bc5 f8N Qff3 Nh7 Bd6 f7 Ke7 f8R Rg6 d8N Qe4 Nf6 Qh4 Nde6 Ne3 Nd4 Nd1 Nc2 Nd4+ Kb6 Nb3 Qg5 Rh6 Bf4 Qh7 Re4 Re6 Re5 Rg6 Bf7 Bd7 Be8 Rg7 Rb1 a1Q Rc1 Ra8 Kb7 Ba4 Bc6 Qb2 Rf5 Re2 Rc8 Be5 Re8+ Kd6 Ra1 Ra7+ Kc8 Rg6 Be3 Bg3 Ree5 Rg2 Bf4 Rg7 Na8 Rgb7 N8c7 Rg1 Rb1 Qa1 Rc1 Na5 Rb1 Rb2 Rc1 Nb3 Rb1 Ne3 Rf1 Nd1 Ndb4 Bb5 Nb8 Rb7 Re7+ Kc5 Nb1 Na5 Nd4 Re2 Ng8 Ba4 d6+ Re5 d7 Bc2 d8Q Bd3 Ndc2 Be2 Qd2 Rd5 Re4 Qag7 Ree5 Kd6 Nd3 Rb2 Nf6 Nb3 Nc3 Ra5 Nba6 Ra3 Rd5+
b6K/1Bq2Nn1/1BN4Q/2p2kBr/QbN3br/2BqQ2R/2prB3/4BRn1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 Ke2 Kf7 Ke3 a5 Ke4 h5 Ke5 c5 f4 e6 b4 c3 d4 h4 g4 h3 f6 Kg6 f7 h2 b6 a4 b5 a3 f5+ Kg7 f6+ Kg6 b7 a2 b6 Rh3 d5 Rh8 d6 Ne7 d7 Ra6 Na3 Bh6 f8Q Qe8 d8B Bg7 Nh3 Nf5 Nc4 Ra8 Qa4 c2 Be2 Bh6 f7 Na6 b8N Nc7 b7 Qd7 Nc6 Qe8 b8B Nb5 Bb6 Qd8 Bd2 Rh7 Raf1 a1R Bc3 Qc7+ Qd6 Re1 f8B Rd1 Be7 Nbd4 Bd8 Rd2 Be7 Kg7 g6 Bg5 Bd8 Rh5 Bf6+ Kh6 g7 Kg6 g8Q+ Ng7 Qh8 Bh4+ Ng5 Be1 Qf8 Rh4 Nf7 Rh5+ g5 Nf3+ Kf4 Ng1 Ke5 Ra5 Qe8 Rb5 Bd8 Rb4 Be7 Kh7 Kf6 e5 Bd8 e4 Qee5 e3 g6+ Kg8 Qg5 Bg4 Qdf4 Kf8 Qh6 Ke8 Qe5+ Kd7 Qe4 Qa7 Bg3 Qc7 Bf3 e2 Qee3 Bf2 Bh4 e1Q Be2 Qd1 Bg5 Be1 Be7 Rd4 Bd6 Qd3 Bg3 Bd2 Be1 Rd5 Nh8 Rd4 Kf7 Rd5 Kg8 Rd6 Nf7 Rd5 N4e5+ Ke6 Kh8 Rf4 Nc4+ Kf5 Ba1 Bb4 Bac3 Ne6 g7 Rd6 g8B Ng7 Rf3 Rd4 Rh3 Rf2 Bf3 Rd2 Bg2 Ne2 Rg1 h1B Rf1+ Rf4 Bf3 Ng1 Be2 Bd5 Ncd8 Ba8 Nc6 Qb8 Nfd8 Qc7 Bd5 Bf3 Nf7 Rfh4 Bf4 Bg4 Bg5+ Qf4 Bdf3 Qc7 Nb8 Qe5 Bb7+ Qf4 Bef3 Qe5 Nc6 Qc7 Be2+
2B1Qkbq/1r4b1/2NB1NnN/1p3N1K/4N1R1/2pRQQ1B/2qrN3/1rn3b1 b - - 0 1 illegal: No possible last move
2q2Q2/1N2R3/Q1nKR3/1pB1RprB/b4b1n/1k1b1r2/RN5R/1qrQN2R b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 h4 f5 e4 c5 a4 b5 d4 c4 e6+ Kd6 a5 c3 h6 g4 Kf4 g3 e7 b3 e8R c2 h5 g2 a6 b2 h7 Qf6 h6 Ra7 e5+ Kc7 e6 Kb6 d6 Qf7 Ke5 Nf6 e7 Ne4 d5 Kc5 d7 Kb4 d8N Kb3 d6 Bb7 d7 Nd2 Be2 Be4 Na3 b1B Nb7 Ka4 d8R Ra8 a7 Qb3 Nc4+ Kb4 Ra2 Qa4 Bh5 Rg8 h8R Rg5 h7 Bh6 Rd7 Nc6+ Kd6 Nf3 Ba3+ Kb3 Bc5 Nh4 Nf3 g1Q Ne1 Bd3 Nb2 Qc4 Rh2 Rd8 a8Q Rc8 Qa6 Qc3 Qd2 c1R Qd1+ Qc2 Rhg8 Rd8 h8R Ra8 Rg6 Qh1 Qb6 Ra3 Qa6 Qe4 Re6 Qb4 Qe2 Qcc4 Qd1+ Bbc2 Ra8 Qcc3 e8Q Qcc4 Re5 Qg8 Qb8 Qc8 Rde7 Kc3 Ree8 Qe6+ Kc7 Bc4 Rhg8 Ba4 Re7 Rg2 Nbd3 Rb1 Qf8 Bf4 Rae8 Rc1 Rd7 Qb1 Nb2 Rg7 Rf7 Qc8+ Kd6 Rg6+ Re6 Bf1 Be3 Kb4 Bf2 Rf3 Re7 Bd3 Bc5+ Kc3 Rh1 Rg2 Rg3 Rg1 Rgh3 Rg5 Nc2 Kb3 R3h2 Be4 Ne1+ Bc2 Qe2 Bd3 Qd1+
Q6K/1r2NkR1/3p1N1n/4bQq1/QQ1b2Qr/BRBQq1nb/3p1rB1/5N2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 e5 Ke4 g5 c4 g4 b4 d6 f4 g3 h4 d3 h6 a4 h5 d2 c5 a3 b6 g2 h7 a2 h6 Qd7 f6 Ra7 f7+ Ke7 b7 Kf6 f5 Ra4 c6 Ra6 c7 Qa4 Nc3 Bg7 f8N Ra5 Ng6 Ne7 Nge2 g1B Ba3 Be3 Rh3 Nd5 Ne7 Be6 c8Q Bd7 Ng3 Bg5 Bg2 Nc7 Ncd5+ Kf7 f6 Ra7 Nf1 Nc6 b8Q Rb7 Rb3 Qa6 b5 Qa5 b6 Be3 Qa8 Rf8 h8B Nb5 h7 Bh3 Qcg4 Bd4 Kf5 e4 Qa6 Nc3 Qd3 e3 Rc1 Rc7 b7 a1R b8Q e2 Qb4 e1Q Q1c2 Ne4 Rd1 Ke8 Kg6 Rb7 Qcc4 Qe3 f7+ Kd8 Re1 Bge5 Nf6 Ng3 Kg7 Rc1 Qcb5 Rc4 Q5a4 Qb5 Re2 Qc5 Rf2 Qb5 Rf5 Qa5 Rg5 Qd5 Nf5 Ne7 Rg6 Ng8 Ne7 Nh6 Rg5 Re8 f8Q Qc5 Qf7 Rf8 Qfe6 Qd5 Qef5 Qa5 Kg6 Qd5 Bg7 Rf7 h8Q+ Rf8 Kh7 Qc5 Nd7 Ke8 Nf6+ Kf7 Rg6 Bc3 Rg5 Rf4 Rg6 Bcd4 Rg5 Rf2 Rg6 Rc8 Qd8 Qd5 Kh8 Rc4 Qda8 Ba7 Qgf3 Rh4 Q3g4 Bad4 Qc5 Qde4 Qfh5 Q4f4 Nfg8 Ba1 Qcb4 Bec3 Be5 Qf5 Nf6 Qff4 Qhf5 Qg5 Bd4 Bab2 Ba7 Be5 Bd4 Bc1 Ba1 Bcb2 Rg8 Bbd4 Bc3 Qgf4 Rg6 Qg5 Rg7+
4NR2/np2bn2/1Q2kpK1/N2qrN1Q/B1Rq1Rb1/2B4R/2r1rBb1/1R4R1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 c5 Kf4 g5+ Kf5 g4 e4 g3 h4 g2 d4 b3 a4 b2 a5 c4 h6 c3 d6 c2 e6+ Ke8 h5 Ra7 h7 Qd7 a6 Bg7 d5 Bh6 e5 Qa4 d7+ Ke7 d8R Qc6 Be3 c1Q Bf2 Ra8 a7 Qb6 Ne2 g1R Nd2 Qd4 Rb1 Nf6 Nc4 Qdc3 Nd4 Bg7 h6 Nh5 Rf8 Qb4 Na5 Qcc5 Bb5 Qb3 Ba4 Nf6 Qh5 Rf1 Rg1 Ng4 Kg5 Rg8 h8R Nc6 h7 Re1 Kf5 Rb8 a8R Re2 Ra6 Na7 Rc6 Qcb6 Rc4 Bd7 Kg5 Re8 Kf5 Q3b5 Kg5 Nh6 d6+ Kd8 Nf5 Qd5 Rf4 Qbd4 e7+ Kc8 e6 f6+ Kg6 Bc6 d7+ Kc7 d8B+ Kc8 Bb6 Nf7 Bc5 Kc7 Bb4 Re5 Rbd1 b1B Bc3 Bc2 Ra1 Bd1 Rb1 Rc8 e8Q Bg4 e7 Re2 Ne3 Kd6 Qd8+ Ke6 Qb6 Rc7 Rc8 Re8 Nf5 Bf8 Rg8 Rd8 e8N Be7 h8R Re5 Ned6 Re8 Rh6 Q5c4 Rgh8 Bg2 Rf8 Qcd5 Rh7 Rc5 Rhh8 Re2 Rc6 Rc8 Rc7 Rb5 Rc4 Rcc5 Rh6 Rbb2 Rhh8 Rbc2 Ne8+ Qc6 Qg5 Rce5 Rh3 Qcd6 Qh5 Qc6 Qc7 Qcd5 Qb6+
1Q1B1Q2/3RBBN1/K2b3k/2b1Rbq1/3p2pb/B3B2r/RbNn2Br/1Q2n3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 a5 Kc4 e5 b4 g5 f4 Kg7 h4 g3 h5 e4 c6 d6 h6+ Kh7 f6 g4 b6 d5+ Kb5 a4 c4 e3 c5 d4 c7 a3 f5 e2 f7 e1B c6 a2 f6 g2 b7 Bh4 Be3 Qd7 Na3 Na6 b8B Bd6 f8B Bb7 c8B Bf2 f7 Bfg3 Ne2 g1B Bg2 Kg6 h7 Qd8 c7 Bgf4 Nc2 Bf3 Be7 Bh6 f8B Bdf4 Qb1 Bg3 Be6 Nc5 c8R B1h2 Bc7 Bh4 Ng3 Be4 Nh5 Nf6 Re1 Nd3 Ng7 Bf5 Ba5 B6f4 Bf7+ Kh6 Rc7 Ne4 Rd7 Nd2 Bc7 Rc8 Ka6 Rb8 Re2 Ne1 b5 B2g3 Ba3 Qg5 b6 Bd6 b7 Bc5 Be7 Bgd6 Bcd8 Rc8 b8Q Rc7 Q1b3 Rb7 Qb1 Rb3 Bg1 Rc3 Re5 Rh3 Be3 Rg8 Ne6 Rg7 h8Q+ Rh7 Ng7 Rh2 Qf8 Rh8 Q1b6 Rh3 Rb1 a1B Rb2 Rh2 Ra2 Bb2 Q6b7 Kh7 Qf3 Bg3 Be6 Kg6 Qe2 R8h3 Bf7+ Kh6 Qd1 Bh4 Qb1
4k3/N1Kn2r1/RrN2R2/QNn1rpbR/p2N4/2BB3r/1NNq4/2Bb2Qr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 Ke4 f5+ Ke5 a5 e4 g4 d4 f3 b4 g3 h4 f2 b6 c4 b7 c3 d6 c2 h6 g2 b5 Ra7 b6 Bd7 h7 Bb5 d5 Ne7 d7+ Kf7 Kd6 Qe8 d8Q Na6 b8R Bd3 b7 Nc5 h5 Bc4 e5 Ba6 h6 Qa4 e6+ Kg6 Kc7 Be2 d6 Qc4 d7 Qb5 Rh5 Rg8 h8N+ Kf6 h7 Qa6 Nf7 Nd3 h8B+ Rg7 Nd6 Nc5 Na3 Qd3 Nf3 g1R Nd4 Rh1 Ndc4 Rh3 Nb2 Qd2 Rc8 Ra8 b8N Ra6 Nbc6 Rb6 Na7 Kg6 Qe1 Ng8 e7 Kf7 e8N Bd1 Bd3 Nf6 Qg1 f1R Rb8 Re1 Nd6+ Kg8 Rc8 Re5 N6b5 Kf7 Ra2 Be7 Rb8 Rd6 Rb6 Rde6 Ra1 Rd6 Ra6 Rb6 Rb1 a4 Qa8 Rg5 d8N+ Ke8 Qd5 Nfd7 N8c6 Nb7 Qc5 Rg7 Qb4 Nbc5 Qa5 Qc3 Bh6 c1R Nac2 Bf3 Bd2 Bg5 Bf4 Rf1 Re1 Bd1 Bc1 Qd2 Re3 Ree7 Re6 Re1 Rf6 R7e5 Qf2 Reh1 Qg1 Rf7 Bg7 Rfe7 Bf8 Rg7 Be7 Nb3 Bb4 Nbc5 Bc3
5Qb1/1Q2K3/B2r3B/QpRb1Q1Q/1N1k1pnR/BQ1b4/nN3bb1/1rqN4 b - - 0 1 illegal: No proof kernel
n3B3/2Q3Q1/KQ1r1R2/1Nbr1bB1/BQ1q1QbR/Qp1r4/1pb5/2nNkN2 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Ke7 a4 h5 e4 f5 Ke2 c5 Kd3 b5 g6 b3 e6 Kf6 a5 Ke5 g5 Kf4 a6 Kg3 d6 Kf2 e7 f4 e8B f3 g7 b4 Kc4 h4 Kb5 c4 d4 c3 g6 b2 e5 b3 a7 h3 d7 c2 d5 h2 d6 Rh6 e6 Qe7 d8Q Rh8 d7 Na6 Bg5 c1R Ne2 Nb8 Qd6 Rh3 Q8c7 Ke1 d8Q f2 Ng3 Rc6 Qf4 Nh6 g8Q Rd6 g7 Nf5 Ra6 Qf6 e7 Qd4 Nc3 Nd7 Qgc4 Nb6 g8Q Be6 Bg2+ f1B Bgc6 Rb8 Qg7 Na8+ Ka5 Rb7 Qb6 Rbd7 Qdc7 Rd5+ Qcc5 R7d6 Nd1 Bd7 Ba4 Be6 Ne4 Ng3 Nd2 Ne2 Qb4 Rd3 Rc6 Ng3 Ka6 Bf5 Qbb6 Ne2 Qcb4 Rd8 Rf6 Nc1 Bf7 R8d7 e8N Bc5 Nd6 Rd8 Nb5 R8d6 Be8 Bg4 Rg1 h1B Rg3 Bf5 Rh3 Be2 Rh4 Beg4 Nf1+ Rd2 Qge7+ Bhe4 Qg7 Bc2 Qd8 Qc3 Qdc7 R2d3 Qbc6 Nb6 a8Q Qd2 Qaa7 Na8 Qab6 Qc3 Q6a5 Qd2 Q6b6 Qc3 Qa3 Qd2 Q5b4 Qc3 Qbc4 Qd4 Qcb4+
nNB4n/Q1Q1B3/b3Bn1r/R3Bbkq/1RB3Np/r3n3/NRB4p/b6K b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Ke7 g4 f5 Kg2 h5 e4 a5 d4 c5 b4 c4 d6+ Kf7 d7 Kg6 d5 a4 d6 c3 g5 a3 e6 c2 b6 a2 e7 f4 e8B+ Kg7 g6 Kh6 b7 Ra4 b5 Nc6 b8R Qb6 d8Q Qd4 e5 Na5 g7 Rh7 b6 Nc4 b7 Nb2 d7 Be7 e6 Nf6 g8B Nc4 Bg6 Nb6 Rh2 h3+ Kh1 h4 Qc7 Qd5+ Nf3 Na8 d8B Ra3 Qd4 Qh5 Bb2 c1N Qa7 Nd3 Nc3 Ne5 Bc2 Nf7 Ne5 f3 Ng4+ Kg5 Bc4 f2 Rg2 Bc5 e7 f1B e8B h2 Bd7 Bd4 Be7 Nh8 Bdf5 Bd7 Bge6 Rh6 Re2 Ba4 Bc8 Bd7 Bfe6 Be5 Rb1 a1N Na2 Bd4 Ree1 Bd3 Re5+ Bf5 Ra5 Bb5 Bc3 Ba6 Rb4 Be5 Be1 Bd4 Bg3 Bc3 Be5 Bb2 Ba4 Nc2 Bab3 Ne3 Bc2 Nb6 Ra8 Bd4 b8N Ba1 Rab5 Na4 Rb2 Nb6 R5b4 Bb5 Qa6 Bd7 Ra7 Na8 Qab7 Bb5 Ra5 Ba6 Qa7
K1QRBBB1/BBN2n2/N3r2b/2rn2nk/N3R1p1/8/1p3R1q/2bb1QnB b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 b5 Kf3 c5 Ke4 g5 a4 g4 d4 f6 h4 Kf7 a5 b3 d6 f5+ Kd5 b2 e4 b4 h6 Kg6 d7 f4 e6 b3 e7 c4 e8B+ Kh7 e5 f3 a6 c3 h5 c2 e6 f2 e7 Qb6 d8N Nc6 a7 Qb7 Nh3 Bd7 Bg2 f1N Bf7 Nb8+ Nc6 Nh2 e8B Bb4 Qf1 Bf5 Be3 c1B Ra4 Bc5 Nf4 Nf3 Rh2 Bb4 Ne6 Be7 Bh1 Bb4 Nc7 Bcd2 Rf2 Ba3 Nc3 b1N Rb4 b2 Na4 Bc1 Kc5 Bd7 d5 Ng1 d6 Nd2 Bfd5 Bf5 d7 Ndf3 d8R Bc2 Bb3 Qc8 Kb6 Bd1 Re4 Ng5 Nb4 Ne7 Nba6 Nbc6 Bc5 Qd7 Kb7 Rc8 a8B Qd6 Ba7 Qh2 Bd5 Rf8 Bdf7 Ne5 Bg8+ Kh8 h7 Kg7 h8B+ Kh6 Bf6 Nd5 Be7 Rf6 Bd6 Nef7 Bb4 Kg7 h6+ Kg6 h7 Kh5 h8Q+ Rh6 Qc3 Re6 Bf8 Bb4 Nb5 Rc5 Nbc7 Ba5 Kb8 Bb4 Bb7 Ba5 Qcc4 Bc3 Ka8 Bg7 Qc2 Bh6 Qc3 Ra5 Qc6 Rb5 Qd7 Rc5 Qc8
1r3RB1/B1Q3BR/3K1Rbb/1q1pQB2/4Q2N/n3b1pk/Nn1n4/1B1b1rB1 b - - 0 1 illegal: No possible last move, all moves rejected
1RN5/4r2p/B2B3b/1nbrQB2/bNk1q1rB/B2b2pR/2QnR2N/B1K5 b - - 0 1 illegal: No proof kernel
n3bQQ1/2R2QBB/rpn2R2/k1B3bn/6KN/BBqr3p/4R1B1/N4q1n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 e5 g4 h5 d4 c5 a4 Kc7 a5 c4 d6+ Kc6 g6 Kb5 d5 b6 d7 h4 d6 h3 a6 b3 g5 e4+ Kg4 e3 f4 e2 g7 e1N g6 b2 f6 Rh7 f5 Kb4 f7 c3 f6 c2 a7 Ne7 g8Q Nf3 g7 Nd4 Ra2 Nec6 Bd3 Na5 Nd2 b1Q Ba3+ Ka4 Nb3 c1N Re2 Rh8 Nf3 Rh5 Rf1 Be7 f8B Nac6 f7 Nb5 Nh4 Nc7 Rf6 Rd5 Bh7 Rd3 Na1+ Ka5 Qf1 Qc2 Bc5 Qc3 Qf5 Qe8 d8R Bd7 Rc8 Bd8 Be7 Qf8 Qe6 Be8 d7 Qb4+ Qc4 Qc3 Bed6 Be7 d8Q Nd7 Be5 Rb8 Ba3 Na8 Rc7 Rc8 Bed6 Rb8 Bdc5 Rb7 Re1 Ne2 Qf4 Ng3 Re2 Nh1 Qb8 Bd8 Qc4 Qe7 f8B Qf7 Qf4 Qfc4 Qf7 Qb5 g8B Qb1 Bg7 Qf1 Qf8 Be7 Bb3 Bd8 Rf5 Bg5 Qd8 Rb8 Qc4 Rb7 Qcg8 Rb8 Qde7 Rb7 Rf3 Rb8 Qef7 Nf6+ Kf5 Nh5 Kg4 Rbd8 Rf6 R8d5 Rg2 Rf5 Re2 Rf2 Re4 Rfd2 Re2 Ra2 Bc1 Kb5 Bb2 Ra6 Bba3 Ka5 Rc8 Nc7 a8B Nd4 Bf3 Nc6 Bg2 Na8 Rc7
1Q1Q1b1b/3B4/3R1r1R/1pprN2q/N6k/1RN1pn2/1RR4B/nRn1Qb1K b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kf7 a4 Kf6 h4 e5 f4 c5 Kf2 b5 Kg2 g5 d6 e4 d5 b3 h6 g4 d7 b2 h5 g3 h7 Ra7 a5 Qb6 d8R Rf7 h6 Re7 d6 Qa7 a6 Qd7 a7 Re6 a8N Qc6 d7 Ne7 Rh2 Re5 Qe1 Na6 Nf3 Nd5 Kh1 Rg8 h8R Rg6 h7 Be7 Nb6 Ndc7 Bh3 Qd5 Na4 Nb4 Rhg8 Bb7 h8R Nca6 Rh6 Na2 Be3 Qd1 Bg1 Nc1 Re2 Bc8 Bh2 Nb4 Re3 Qd5 Rb3 Nc2 Nbc3 b1N Bg4 Nd2 Rab1 Na1 Rge8 Kf7 f6 Reg5 f5 g2+ Kg1 Bd6 Re6 e3 Rg8 Qe5 d8Q Bb7 Qb8 Be4 Rd8 Bd3 Bh3 Be7 Rd4 Qd5 Rd6 Bf1 Bg4 Nc4 Rd2 Ne5 Rdb2 Qd1 Rdd2 Rh5 Rdc2 Qd5 Bg3 Rhg5 Kh2 g1B+ Kh1 Bf2 Bh2 Bh4 Bh3 Qd1 Nd4 Qh5 Nc6 Nf3 Bg4 Rg8 Qd8 Rf8 Qb8 Kg8 f7+ Kg7 Qd8 Bg3 Bh3 Be5 Bg4 Rg8 f8R B5f6 Re8 Rf8 Qb8 Kf7 Rd8 Bh8 f6 Rd5 Bc8 Bd6 Rd7+ Ke6 f7+ Kf5 Ne5 Be7 Rdd6+ Kg5 Qd1 Kh4 Bd7 Rg8 f8Q Rg6 Qfe8 Bf8 Qed8+ Rf6 Qe1+
R1K1NR2/4Qq2/4pR1b/1b2RrQ1/2BRr3/B2pn1Rp/nQ5N/2rb2Bk b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Ke4 h5 Ke5 d5 f4 e6 c4 d3 b4 a4 g4 d2 g6+ Ke7 g7 d4 b6 a3 f6+ Kf7 f5 h4 b7 a2 c5 h3 b5 Nh6 g8Q+ Ke8 b6 Kd7 g5 Kc6 f7 Be7 f8R Qe8 f6 Ra4 g6 Bd8 g7 Bd7 f7 Rc4 Nf3 Rc2 Ba3 Na6 b8B Rc1 b7 Bb6 Nc3 Bd8 Ne4 Rh7 Bc4 Rc3 Nf6 Rd3 Ba7 Nb8 Nh2 Na6 b8Q Rf3 Re1 Nf5 Qb2 Nb4 Qdb1 Qe7 Ne8 d1B Q1c1 d3 Qg5 Rh8 Qh7 Ne3 g8R Bb6 Rc1 a1R Rg6 Rf1 Rf6 Rb1 Rg8 Na2 f8R Qf7 Qhg7 Rh4 Qh7 Qg6 Qe7 Qf7 Rc2 Rc1 Rc3 Kb7 Kd6 Re4 Rg7 Rf5 c6+ Kc8 c7 Kb7 Rb3 Bb5 Rb4 Ba5 Ra4 Bd2 Bb6 Ba6 Kd7 Bb5+ Kd8 Kc6 Kc8 Nc2 Qg4 Bh6 Bg1 Ne3 Qg5 Ng2 Bb3 Ne3 Rc4+ Kd5 Rd4+ Ke5 Rgg6 Nc3 Bc4 Na2 Qh5 Kf4 Re2 Ng4 Qg5+ Kg3 Re1 Rf2 Re3+ Kg2 Rg3+ Kh1 Rf5 Nb4 Rgf6 Na2 Re5 Rf5 Kd8 Nf2 c8R Ng4 Ra8 Ne3 Kc8
2Bq1B2/QN2N3/p1npR1KB/2R1R3/1RR2pbb/7k/3n1Q1R/rNn2r1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 c4 a6 b4 f6 h4 g4 b6 d3 b7 d6 b5 d2 h6 g3 b6 g2 h5 Qe8 h7 Qd8 h6 Nd7 b8R Qe7 b7 Qg7 c5 Qf7 c6 Be7 c7 Ra7 Rh5 Ra8 Qe1 d1B Qf2 Ba4 Nf3 g1N Ra2 Bf8 Bh3+ Ke7 Kf5 Nb6+ e6 Bcd7 c8N+ Ke8 e4 Kd8 e5 Qe8 Ng5 Be7 Nf7+ Kc7 Kg6 Bf8 e7 f5 e6 Qd8 e8R Bac6 e7 Be4 Rc2+ Bec6 Rc4 Ne2 Rg5 Be6 Rg2 Kd7 Rc5 Nc4 Bg5 Qb6 Nd8 Bg7 Bg4 Bf6 Bd2 Bh4 Be3 Nf6 Bh3 Rf8 h8R Ng8 h7 Nc1 Bh6 Nd2 Bg4 Nf6 Rg8 Nd5 h8B Nb4 B8g7 Bcd5 Bh3 Nc6 Rg4 Bh1 Rgc4 Rf7 Bf8 Rh7 Kh5 f4 Rg2 Bg4+ Kg6 Ra7 Ra8 Qa5 b8Q Rc7 Nb7 Ke6 Qa7 Qb6 Rb8 Qa5 Nb6 Rc8 Nd5 Qd8 Na5 Rc7 Rbb5 Rb7 Rbb4 Rb5 Nb7 Ra5 Nb6 Ra1 Nd5 Qa5 Rc8 Qd8 e8R+ Kd7 Ne7 Ke6 Bg5 Rh5 Bgh6 Re5 Ra5 Re1 Rf5 Rf1 Rc7 Be2 Rf6+ Ke5 Bd7 Bg4 Bc8 Nd4 R7c5+ Ke4 Qg1 Kf3 Re6 Nc6 Rge2 Bh3 Qf2+ Kg4 R2e5 B3g2 Rg5+ Kh3 Rg4 Bf3 Rg2 Bh5+ Kf5 Ra4 Ree5 Bg4+ Kg6 Ra2 Ng8 Nb8 R8e6 Ra1 Ne7 Nc6 Rh2#
1r1qknR1/2b1NpQ1/1Bb1N3/KQB2N2/1Q1nQ3/1r1Qbp2/2Q1p3/RB1n4 b - - 0 1 illegal: No proof kernel
1R2Qr2/p1p1n2r/2Nq1N1n/1N1b2NQ/2Q1R3/B2npNk1/4K1Nb/b1B4B b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kd7 d4 Kd6 f4 e5 b4 g5 h5 e4 h6 e3 f6 g3 f7 g4 f5 g2 f6 g3 b6 Nd7 h7 Bb7 b5 Nb8 Na3 Bc6 b7 Qe8 b6 Na6 b8Q Nh6 b7 Rg8 h8Q Rg7 Nf3 g1N Rb1 g2 Qb3 Qe5 Rh4 Qe7 Re4 Qd7 Qc4 Qe8 Nb5+ Kd7 d6 Rg4 d5 Be7 f8B Qd8 f7 Nf5 Qh5 Nh3 Ke2 g1B Bg2 Rg7 Bh1 Nb4 Rb3 Bf6 Be7 Rg6 f8N+ Ke8 d7+ Kf7 d6+ Bd5 Nh7 Bh2 Bf8 Ba1 Nhg5+ Kf6 Qc8 Rg8 b8N Nd3 Rb4 Qe7 d8N Rh8 d7 Nh6 Ndc6 Kf5 Qce8 Qd6 d8N Rh7 Nd7 Rc8 Nf6 Nhf4+ Kd1 Ng6 Nde6 Rb8 Nf4 Ne7 Ng2 Ra8 Na3 Rc8 Rb8 Rd8 Nb5 Rc8 Qef7 Rd8 Ke2 Re8 Bg7 Rf8 Qe8 Bg8 Nd7 Bd5 Bgb2 Qf4 Qhf7+ Kg4 Nf6+ Kg3 Ba3 Qd6 Qh5
B1Bbbn2/1Nr5/2q2QBK/1RRpp1p1/2nRr3/k4N1B/q1QQ3q/B2B4 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 b5 Ke3 d6 Kf4 Kd7 Kg5 Kc6 f4 e5+ f6 g6 a4 b4 h4 g3 c4 b3 a6 b2 a5 g2 h5 Bf5 h6 Bh3 a7 Qd7 f5 Qb7 h7 Qc7 f7 Bg4 f6 Qc8 a6 Nh6 Ra4 Qe8 Na3 b1Q Bd3 Qb5 Qd2 Qb1 Nf3 g1Q Nb5 Qb3 Bb2 Qc2 Ba1 Qg2 Rb1 Be7 f8R Qd7 Rc8+ Qc7 Rab4 Rd8 h8Q Qh3 Qh7 Bf8 f7 Bg7 f8Q Qh1 Qf6 Nd7 R1b3 Rb8 a8B+ Rb7 a7 Qa2 Bc2 Rf8 Bd1 Bh5 Rd3 Rf7 Rd4 Ng4 Rb3 Bh8 Rb1 Ne3 Kh6 g5 Qhc2 Nf8 Rb4 Kd7 Rb1 Rb6 Be4 d5 a8B Qc6 Nd6 Rb4 Nb7 Qh2 Bg6 Ra4 Rb5 Re7 Qf7 Bf6 Qg7 Rf7 Qh8 Bd8 Qg7 Qc7 c6+ Ke6 c5 Nc4 Qh8 Qd6 c7 Qc6 Rb8 Rd7 c8B Ke7 Ra5 Rc7 Be6 Rb4 Rc8 Ra4 Rb5 Rb4 Bh7 Bg6+ Bh3 Be8+ Bg6 Na3 Rd3 Re4 Rd4 Nc4 Na5 Qd7 c6 Kd6 Qf6+ Qe6 Rb3 Kc5 Rb2 Qb3 Nb7+ Kb5 Rb1 Ka4 Rb2 Ka3 Rb1 Rd7 c7 Qa2 Rb5 Qb6 Rc5 Qc6 Rb8 Rf7 c8B Rg7 Na5 Re7 Rbb5 Rc7 Nb7
1N2RRK1/4k1N1/n2q1p2/4r1p1/q2n2rb/2B1Q1R1/2b1BRBp/QNR2R1b b - - 0 1 illegal: No proof kernel
3bq1n1/rN2pB1r/2RB1pK1/k2Q1R2/r6R/Bq1pn3/RRQ2Qb1/4R2N b - - 0 1 illegal: No proof kernel
k4rQ1/1Qp2Q2/n1NbQ1Q1/2p1Rp1b/bR1RB1Nq/n1B1rN2/1K6/2Q4q b - - 0 1 legal: proof: f4 b5 a4 e5 fxe5 g5 axb5 d6 c4 g4 c5 dxc5 h3 Nd7 hxg4 Nb8 g5 Bd7 Qb3 Bg4 Qd1 Bc8 b4 Kd7 e4 h5 d4 a5 Kd2 f5 Kc2 a4 g4 h4 d5 h3 b6 h2 b5 a3 e6+ Kd6 e5+ Ke7 d6+ Ke8 e7 Kd7 g6 a2 b7 Rh5 g5 Qe8 g7 Nc6 b8R Ra5 g6 Rh8 b6 Rh7 b7 Ra8 Bb2 Ra3 Nh3 Qd8 Qc1 Nf6 g8Q Rd3 g7 Rf3 Nd2 Re3 Bg2 Ne4 Rd1 h1B Qf7 Re2 g8Q Qe8 Nf2 Qd8 Bc3 Re3 Nf3 Nd2 Kb2 Rh8 Ng4 Nb1 Rd4 Nb4 e6+ Kc6 e8Q+ Bd7 e7 Na6 Qfg6 Na3 Qef7 Kb6 e8Q Ka7 Qee6 Ba4 d7 Qh4 d8N Bd6 Nc6+ Kb6 Q8h7 Re8 Qhg8 Rf8 Bf1 Bg2 Bd3 Bf1 Be4 Bh3 Nf2 Bg4 Re8 Bh5 Ng4 Nb4 b8Q+ Ka6 Qd8 Kb7 Rb1 Na6 Qdf6 Nb4 Qd5 Na6 Re5 Ka8 Q6e6 Qh3 Ka1 Qh4 Rbb4 Qf2 Qb1 Qh4 Kb2 a1Q+ Kc1 Qe7 Nb8+ Ka7 Qc6 Qd8 Qb5 Qh4 Nc6+ Ka8 Qb6 Qa2 Qa1 Qb3 Qb5 Qd1+ Kb2 Qf1 Qc1 Qfh1 Qb7#
1r1B2Rr/8/5nrp/2R1K1pB/3pR3/NknrQN2/NN1bQq2/1N3bQN b - - 0 1 illegal: No proof kernel
r7/p1RN1n2/2qnp3/R1n1NQRB/2B1nBbb/BBQ2B2/2Kp2N1/4r2k b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 h5 g4 d5 b4 h4 c4 d3 c5 h3 c6 d4 c7 h2 f6 Ke6 g6 Kd5 b6 Ke4 g7 Ba6 c8B Qe8 b7 Qh5 f5 Nc6 b8B Qf7 b5 Qe8 f7 Qd8 b6 Qc7 f6 Bb7 g5 Kf4 g6 Kg3 Qb3 Qd6 Ne2+ Kf2 Bg4 Qd5 Rg1 h1N Ra5 Rh5 Qc3 Rh4 Na3 Rh8 Bf4 Bc8 b7 Ne5 b8R Qc6 Bg2 Nh6 g8B Nd7 g7 Nc5 Rb7 Ng3 Bh5 Ngf5 Nc4 Nd6 Ba3 Bg4 Ne5 Re8 Kd1 d2 Kc2 d1N Rc7 Ra8 Bf3 d3+ Kb1 d2 Kc2 Bh3 Rg5 Bg4 Nc1 Kg1 Ncd3 Re8 Ne1 Nf2 Ng2 Ra8 Bh7 Kh1 g8B Re8 Bd3 Nfe4 Bc4 Bg7 f8N Nhf7 Nfd7 Bh6 Rg6 Bg5 Rg7 Bh4 Rg5 Nh6 Bge6 Nhf7 Bed5 e6 Bb3 Ra8 Bdc4 Nh6 f7 Rhc8 f8Q Nhf7 Bd5 Rcb8 Bbc4 Rb1 Bb3 Re1 Bdc4 Nd8 Qf6 N8f7 Qf5
BN2k3/1Q3R2/4NbNn/B1Nrn2K/1ppp3p/8/b1nNQR1N/Q3qr1R b - - 0 1 illegal: No proof kernel
N1R5/1Rb2RR1/1Bb1R3/1pr2Bq1/nnpKNk2/2r1p2p/3Qb3/3NBQ1R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 e5 d4 h5 f4 b5 a4 c5 g4 h4 d6 h3 d5 b3 g6+ Kf6 g7 b2 d7 c4 a5 e4 d6 Qe8 d8B+ Ne7 g8R Bg7 g5+ Kf7 d7 Rh4 g6+ Kf6 a6 Bb7 a7 Bf8 g7 Qf7 Nf3 Qe8 Bd2 Qg6 Ra6+ Nc6 Bb6 Re8 a8N Qf7 d8Q Qh5 Bd3 Nb4 Qf1 Rg4 Be1 Rg1 Kd4 e3 Nc3 b1B Ng5 Bd5 Nge4+ Kf7 f6 Kg6 f7 Kf5 Nd1 Qg5 Qd6 Kg4 f5 Bc6 f6 Nc8 Qd8 Bd6 f8R Bc2 Rf7 Re5 Rb7 Rc5 f7 Bc7 f8R Bb1 Bc2 Rg2 Bd3 Rc2 Rf7 Rc3 Rgf8 Bc2 g8R Bb3 Rgg7 Ba4 Nb2 Bd1 Qd5 Bf3 Nd1 Be2 Qd6 Ne7 Rc8 Ned5 Ba7 Nb6 Qh2 Bf3 Qd2 Na4 Bb6 Be2 Ba7 Bd7 Re6 Be8 Bb6 Bc6 Nef2+ Kg3 Bf5 Kf4 Ne4+
2N2B2/8/pp1R2K1/1k1NbBQ1/1r6/rN2BB2/bb1pQpBq/BnnRR3 b - - 0 1 illegal: No possible last move, all moves rejected
3qQ1N1/2NQ3p/RR4Q1/p1p1Q2p/1RBBr1p1/b3Qbrn/4Q2k/K1n2B2 b - - 0 1 illegal: Other
r1rBn3/bb1bNq2/2R1RnQN/4N1q1/2B2nRr/1R2Q3/1NN2k2/1K1R4 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 f4 Kf7 d4 Kf6 Kd2 e5 Kc2 g5 h4 c5 b6 g4 b7 g3 h6 e4 h7 c4 d6 e3 d7 g2 h5 c3 d5 e2 h6 e1Q d6 Qg3 Rh4 Qg7 Qd4+ Kf7 f6 Kg6 f5+ Kf7 Qe3 Qc7 d8R Qb6 d7 Ra4 Nd2 b3+ Kb1 b2 Nc4 Qc5 Ne2 g1N Re8 Qd4 d8Q Nh3 Re6 Qc5 Qb6 Qg1 Nd4 Qc6 Nc2 Qc5 Rg4 Nd7 b8R Nf4 Qc6 Qe7 Rb3 Bb7 Qg2 Ke8 f7+ Kd8 f6 Kc7 Qge4 Ra8 Qg6 Bg7 f8N Qf7 Raa6 Qg3 Rad6 Qh4 Rd1 Qg5 Nd6 Kc6 Bc4 Nc5 Nd7 Na6 Bd2 Nc7 Be1 Ne8 Bh4 Qe7 f7 Ngf6 f8R Qf7 Rg8 Bf8 Rg7 Be7 Rg8 Bd8 Rg7 Bb6 Rg8 Bd4 Ne5+ Kc5 Rf8 Rg8 h8N Rg7 Bf1 Rh7 Ndc4 Kd5 Bd3 Ba7 Rg8 Nd6 Rc8 Nde8 Ka2 b1B+ Ka1 Ng8 Nb2 Ngf6 Rcc6 Ba2 Qh5 Bb1 Nhg6 Rh8 h7 Ba2 Ne1 c2 Qh6 Bb1 Qh5 c1R Nc2 Rf8 h8N Rg8 Nd4 Rc4 Bf1 Bf5 Nc2+ Rd4 Kb1 Rf8 Qc3 Ke4 Ne7 Ra4 Qg6 Rb4 Bc4 Rg8 Ned3+ Kf3 Qe1 Nc7 Qc3 Rgc8 Qe5 Nce8 Qc5 Qg7 Nf7 Qg8 Nh6 Qf7 Be1 Ra4 Ba5 Rb4 Bd8 Ra4 Red6 Bd7 Re6 Rb4 Ba6 Rd4 Ne5+ Kf2 Qc3 Rd3 Bb5 Rh3 Bc4 Rh4 Qe3+
1nb4r/1QbnQ3/5QR1/2kBq2r/B1q1qn1Q/K1Q5/1NNN2N1/1R1q1N2 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 h4 Kd7 d4 Kd6 Kd2 e5 Kc2 a5 Kb2 c5 h5 a4 b6 g4 b4 c4 h6 c3+ Ka3 e4 f6 e3 f7 g3 h7 e2 b7 e1Q b5 g2 b6 c2 Nh3 g1Q Qe2 c1N Nf4 Nd7 b8N Be7 f8N Qeg3+ Nd3 Na2 b7 Qc7 Nc6 Qg5 b8Q Ndf6 Rh6 Nd7 Ncb4 Ndf6 Nd2 Q1e3 Ne6 Qee5 Nb2 Ng4 Nf4 Bf6 Ng2 Qef5 Rb1 Ne7 g8N Nc6 g7 Ne7 Nc2 Qh5 Qb7 Rb8 Rg6 Ne5 Nh6 Qc6 g8B Qe4 Ng4 Nc1 Nh2 Ncd3 Qe1 Qc7 Qh4 Nf4 Bb5 N7c6 Nhf1 Nd7 Be6 Be5 Qf6 Rd8 h8Q Qd1 Qh3 Ra8 Qc3 Ncb8 Bc6 Rh8 Qh4 Nf6 Bed7 Rh5 Be8 Ke7 d6+ Ke6 d7 Kd6 Bd5 Qc6 Rg3 Qc4 d8Q+ Nfd7 Rg6+ Bf6 Be6 Be5 d5 Kc5 Qdf6 Bc7 d6 Nb6 d7 Nc6 d8Q Bd7 Qcg3 Rc8 B6f7 Nb8 Bd5 Bg4 Bb5 Bf5 Qd7 Rch8 Qdd8 Bc8 Qde7+ Bd6 Qb3 N6d7 Ka2 a3 Ba4 R8h6 Qee6 Bc7 Qe8 Rh8 Qee5 Qb4 Nbc4 Qb5 Qbh3 Qa6 Kb3 a2 Qd3 a1Q Qee7+ Bd6 Qdh3 Qae5 Nb2 Qae2 Ka3 Q2c4 Qeg7 Bc7 Qc3 Rg8 Qgf7 Rgh8 Q7e7+
2n3K1/N1Q2B1B/3n1qn1/rb1Qq2b/N2b2n1/5RR1/b1RB1RBR/1kB5 b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 d6 h5 d5 h4 b3 a4 f6 c4 d7 f3 Ke6 a3 Kf7 e5 b6 f2 b7 c3 d6 c2 g7 a2 g6 h3 Nc3 h2 Bg2 f1B Nge2 e4 Na4 e3 Qd5 Rh5 Nec3 e2 Nb5 e1N Na7 Nc6 b8Q+ Bb5 Qc7 Nge7 g8B Nf3 g7 Nd2 Bh7 Nc4 g8B Ng6 Rf1 h1B Rf2 Nce7 Rb1 a1N Rb2 Ka3 b4 Bca6 Rb3+ Ka2 Rg3 Qb8 d8R Bg7 d7 Kb1 Rc8 Bh8 Bd2 c1Q d8R Nc2 Rd6 Qe1 Re6 Bg7 Ree2 Qb6 Bc1 N2e3 Rd2 Bc6 b5 Ng4 Ra2 Qd4 b6 Qee5 b7 Bab5 b8B Bd7 Rac2 Bf5 Rd8 Nc8 Rd6 Be4 Rc6 Bf3 Rcd2 Na5 Rcc2 Nb7 Rde2 Bf8 Bd2 Bc5 Kg7 Bb6 Bf7 Nbd6 Kg8 Bc5 Be8 Qdf4 f7 Bd4 f8R Qff6 Bf7 Rf5 Re3 Bfe2 Ref3 Bec4 Re8 Ba2 Re7 Qf4 Ree2 Q4e5 Bh3 Rg5 Rh2 Bg2 Ref2 Bgf1 Bc1 Bfe2 Bg2 Qee6 Ba3 Ne4 Qcc5 Bbd3 Rf4 Ne3 Qdc4 Bh5 R4f3 Ng4 Bf4 Ned6 Qc7 Ra5 Bac1 Qee5 Qd5 Bb5 Bfd2
R2K1B1n/Q5Nq/2p2BBn/kr2rQ2/1nQ1R1b1/3b1B2/N1Qn4/2rBQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 e4 a5 g4 h5 b4 c6 d4 Kc7 e5 Kb6 e6 a4 e7 h4 e8B h3 g6 a3 g5 a2 g7 h2 g6 Rh7 d6 Rh6 d5 Ra6 d7 Bd6 Ba3 Bc5 d6 Qf6 d8Q+ Ka7 b6+ Kb7 b5 Rh5 d7 Rh4 Qe7 Rh7 d8B+ Nd7 Qee1 Be7 Bg2 Nf8 Qc2 Be6 Nc3 Bc8 Nh3 Ra5 Ng5 Nh6 g8Q Rh8 g7 Bb4 Qc4 Ra7 g8B Qf7 Bf6 Qh7 Bg6 Ra5 Ne6 Bc5 Ng7 Be6 Rf1 h1R Rf2 Bc8 Re2 Rg1 Re4 Rf1+ Qef2 Rc1 Qg1 Be3 B8f7 Be6 Bh5 Ng6 Bf8 Rg8 Bh1 Nh8 Bfg6 Bf2 Bc5 Re8 Bf8 Bd7 Bg4 Re5 Qe1 Kc8 b7+ Kc7 B4h5 Kb6 Qg1 Ra6 b8Q+ Ka5 Qe8 Ba7 b6 Bc8 b7 Rb6 b8Q Rbb5 Qd6 Bd7 Qdd3 Be6 Kg2 f3+ Kh3 f4+ Kh4 f2 Bd1 f1N Bhf3 Bg4 Qdd7 Nd2 Qf5 Bf2+ Kg5 Ba7 Rb1 a1N Na2 Rbd5 Rb8 Rb5 Bh1 f3 Ra8 f2 Bhf3 Rec5 Qee5 f1B Qeg3 Bd3 Q3e1 Rb4 Bd8+ Rb6 Kf6 Rd5 Bde7 Rbb5 Ke6 Re5+ Kd7 Ng8 Kd8 Nh6 Qb2 Nc2 Bf6 Nb4 Qbb3 Bh3 Qbc2 Bg4 Qxa7+
bNrB2k1/2q1N1n1/KBN5/QR6/B3r1pr/1B1Q4/RBq1b1rn/2NN4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 exf5 g5 a4 Qd6 axb5 Qg3 h4 Qh3 Ke2 Bh6 Ke1 g4 g3 Bg5 hxg5 Qxg3 Ra5 Qf3 Ra1 Qg2 Ke2 Kf7 Kd3 h5 Kc4 c5 f4 a5 d4 e5 b4 a4 d6 e4 d7 h4 d8B h3 f6 h2 f5 e3 d5 a3 d6 e2 b6 e1R Kb5 a2 d7 c4 g6+ Kf8 b7 c3 f7 c2 Ne2 Qf3 Bb2 c1Q Bb6 Nh6 d8B Qc7 Qd3 Ra3 Nbc3 Qe3 Nd1 Qd6 Nc1 Na6 b8N Ra4 Nc6 Qed4 Be2 Kg7 f8N Nb8 f6+ Kg8 g7 Ra8 Ne6 Qc7 Nf4 Nd7 Nd5 Ne5 Bf3 Qe4 f7+ Kh7 f8Q Nf5 Bg2 Nf3 Qc5 Ba6+ Ka5 Rg1 b5 Rc8 Bf1 Rg2 g8B+ Kh6 Be6 Kh7 Rg1 h1B Rb1 Rh2 Rg2 a1R+ Qca3 Ng7 Qa4 Bb7 Rf2 Ba8 Ka6 Bg2 Qa5 Ra4 Qb3 Nf5 Bg7 Bh1 Nce7 Qb4 Bd7 Qe4 Bc4 Rh4 Ra2 Qe2 Ba7 Rh3 b6 Rg3 b7 Qc2 b8N Nh2 Bb6 Bf3 Qd3 Be2 Bgd4 Rb4 Ba4 Rg2 Nec6 Kg8 Rb3 Rh4 Bb2 Rb5 Rb4 Ng7 Bcb3 Rc5 Rb5 Rc4 Qd4 Rb4 Qd3 Re4 Nde7+
rBB3Q1/n3N3/BrQ3q1/1nq1Bnk1/R7/n1bpRK1B/R6N/rR4R1 b - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Ke2 a5 b4 d5 c4 h5 f6 e5 g7 Kf7 b6 Kg6 b5 a4 c5 d3+ Kf3 d4 c6 h4 f7 h3 c7 a3 c8B d2 b7 a2 b6 h2 Qc2+ d3 Nc3 d1R Bb2 Rh5 Bh3 Nh6 g8B Bb4 f8R Ba5 Re8 Rb1 Bc4 Qd4 Ba6 Nc6 b8B Na7 b7 Nf5 Nd5 Rh6 Qc6+ Nd6 Re7 Qc5 Re8 Bc3 Ne7+ Kg7 g6 Kf6 g7 Kg5 g8Q+ Rg6 Ne2 Ndb5 Rg1 h1N Nd4 Ng3 Rg2 Nf5 Rf2 Kh4 g5 Rh1 Rg1 a1N Rfg2 Rh6 g6 Nc2 g7 Nca3 Ba1 Kh5 Ra2 Rd6 Rb1 Kg5 Rb4 Rg1 Ra4 e4+ Kf2 Qb4 Qcc4 Ne3 Nd5 Bd2 Qf7 Kh4 g8R Nc3 Bc7 Rc1 Qd7 Qc5 b8R Rh6 Rbb2 Rb6 Bb8 Ncb5 Rg1 Kh5 Kg3 Kg5 Qc6 Bb4 Rb3 Rf1 Bc3 Ra1 Rbb1 Ba5 Re6 Bb4 Ne7 Ba5 Bd2 Bc3 Be1 Qf5 Qb3 Qg6 Re5+ Nf5+ Kg2 e3 Bg3 e2 Qg8 e1Q Re3 Bb4 Bge5 Qc3 Kf2+ Kh5 Nf3 Qc5 Nh2 Bc3 Kf3 Kh6 Rgd1 Kg5 Rg1+
1R1r1B1q/Rn2B3/2k3qB/QBnN2p1/1qB1R2r/2r1b1RQ/2N1K3/R6q b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 f5 e4 Na6 exf5 Nb8 g4 hxg4 b3 a5 b6 a4 Ba6 a3 Be2 Bd7 Bf1 Ba4 bxa4 Qc8 Qe2 Qd7 Qd1 Qd8 d4 Kd7 f4 c5 h4 e5 f6 c4 f5 a2 b7 g3 f7 g6 f6 g2 d6 e4 h5 e3 h6 e2 a5 c3 a6 c2 a7 Qc8 h7 Nc6 b8R Qd8 d5 Nb4 Bh6 c1R Nh3 g1Q Na3 g5 Nc2 Bg7 f8B Nc6 f7 Nce7 Nf4 Ng6 Rh4 Qh1 Be7 Nf6 f8B Rg8 h8R Qe4 Rh7 Ne5 Kf2 Qa5 Qd3 Ne8 Qh3+ Qf5 Rb3 Rd8 a8B Qb4 Rg3 Rh8 Bb7 Nd3+ Ke3 Bb2 Ba6 e1Q+ Kf3 Nc5 Bfc4 Qh1+ Ke2 Bd4 Rhg4 Nb7 Rg7 Be3 Rh4 Kc8 d7+ Kc7 d6+ Kc6 Nd5 Qg6 Re4 Nc7 Rf7 Ne6 Rg7 Ra8 d8Q Nec5 Qa5 Rd8 d7 Rh7 Na3 Rc3 Nc2 Rc8 d8R Rh8 Rag1 a1Q Re8 Qab2 Ra1 Rd8 Rf7 Rd7 Rb8 Rd8 Bhg7 Rh5 Bh6 Rh4 Bf6 Nd6 Ra7 Ndb7 B6e7 Ra3 Re1 Qh8 Ra1 Rc3 Bab5+
r2nR3/bN2n1B1/1br3p1/2RQRR2/b2rB3/Kn5B/2Q4B/R1B1nk1N b - - 0 1 illegal: No possible last move
4k1b1/1qp1BBQQ/1R1R2b1/3qq3/1R5b/KN3N1B/n2B2Rn/n1RnB3 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qc2 h5 Qd1 a5 Qc2 Rh7 Qd1 Rf7 h4 Rf5 gxf5 g4 Ra3 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 e4 h4 d4 a4 Kd2 g3 Kc3 f2 b4 f3 Kb2 h3 b6 g2 d6 h2 e5 Ne7 e6 Bg7 g6 Bf6 b5 Kf8 b7 Ke8 g7 Bh4 g8B Qd7 d5 Qc6 b6 Nd7 b8R Kd8 f6 Qc5 b7 Nf5 f7 Ne5 f8B Qe3 d7 Bf6 Ra2 Qa7 Qd4 Nf7 Nd2 Ne3 Bb4 a3+ Kb3 Bg5 Qg7 Nd6 Bf7 Ke7 d8R Qc5 Bc3 Nb5 Rd6 Qd4 Rc2 a2 Ba5 Nc3 Ka3 a1N Nb3 Na2 Qh7 Kf6 e7+ Be6 e8Q Bh4 Qeh8+ Ke7 Q8g7 Qe5 Bb4 Bf5 Rd2 Bg6 Be6+ Bf7 Ne2 g1Q Bfh3 Qg6 Ng1 Qge4 Re2 f1Q Rg2 Qfc4 Bc3 f2 Nf3 Qcd4 Rd1 f1N Be1 Qb6 Bcd2 Qc4 Rc1 Nd1 Ra8 Qcb5 Ra4 Ke8 Rb4 Bg8 b8R+ Bd8 Ra8 Qb7 Raa6 Bh4 Rab6 Qc4 Rdc6 Qd3 d6 Qc4 Rg6 Qcd5 d7+ Kd8 Rd6 h1B Nh2 Be4 Nf3 Nh2 Rg5 Bf7 Rg2 Ke7 d8B+ Ke8 B8g5 Bg8 Be7 Bg6 Bf7+
3krrrB/2pQr3/K4bQ1/3BQ1Qq/brR1nQ2/3N2B1/6p1/1BRN1B2 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 b4 h5 d4 a5 Kd2 f3 Kd3 a4 Kc4 h4 e4 g3 g6 g2 b6 f2 Kb5 h3 e5 h2 e6 a3 g7 a2 d6 Rh6 f6 Rh7 e7 Ra3 d7+ Kf7 e8B+ Ke6 b7 Rc3 b8Q Rhh3 f7 Ke7 d5 Rhf3 d6+ Kf6 Qb6 Rce3 Nh3 Rc3 Bf4 Rce3 Bg3 Nh6 g8B Nf5 Nf4 Re1 Nc3 Bg7 f8Q+ Ke5 Bd5 Bh8 Rc1 a1R Bg6 Qg5 d8Q Bb7 d7 Qh5 Qg5 Ra8 d8B Bf6 Qd3 Rb8 Nd1 Bc6+ Ka6 Ba4 b5 Rfe3 Rc4 R3e2 Rg1 h1R Qbc5 Rc8 b6 Rh4 b7 Re4 b8Q R4e3 Be2 f1R Qbb1 Rf2 Bf1 R1e2 Qg4 Nd6 Qd2 Re1 Qd7 Ne4 Bf5 Rff3 Qg8 Rg4 Qg5 R1e2 Be7 Rg8 Bf8 Re1 Bg7 R3e2 Qcb5 Rh4 Bh8 Rff2 Qh7 Kd6 Nd3+ Rff4 Qhg6 Ke7 Q1b2 Kd8 Qe5 Rff2 Qdb4 Re3 Qc6 Rhf4 Qcb5 Rb2 Qd2 Rb4 Qc1 Rff3 Qc6 R3e2 Qcf4 Qh1 Qa1 Nd6 Nc1 Nb7 Qfh4 Rc3 Bb1 Rf3 Nb2 Be7 Ncd3 Rff8 Qhf4 Bf6 Qe6 Re5 Be2 Qh5 Qh3 Nd6 Rh1 Rc1 Re1 Re4 Bf1 Ree8 Qhf5 Rc2 Rc1 Rce2 Nd1 R2e7 Qae5 Ne4 Qd7+
Q2k4/b2nN2B/r2B3N/1p4r1/1Q4r1/2BN1n1p/1K2RqBN/B3rRnN b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 d4 h5 Kd2 c5 Kc2 e5 a4 b5 g7 c4 d6 h4 a5 b3+ Kb2 e4 g6 e3 g5 h3 a6 e2 d5 e1R f6 Nd7 a7 Re3 Ne2 Rb8 a8Q Re5 Nd2 Rf5 Rh2 Re5 Qe1 Rh5 Nf3 Nh6 g8B Rh4 g7 Ng4 g6 Re4 Qb4 Rb7 Bd2 Re7 Bc3 Nf2 Bg2 Qc8 f7+ Kd8 Rf1 Rd4 Bh7 Rde4 g8N Ng4 g7 R7e6 Ne7 Nge5 g8N Rg4 Ng3 Bh6 f8N Be3 Nfg6 Ba7 Nh6 Rb8 Nh1 Qc5 Nf4 Qf2+ Ka3 b2 Nd3 b1R Ba1 Nf8 d7 Re1 Bc3 Rg5 Ba1 c3 Kb3 c2 Kb2 Kc7 d8B+ Kd7 Ba5 Ra6 d6 c1N+ Kb1 Ne2+ Kb2 Rc8 Bc7 Ke8 Bb8 Rc4 d7+ Kd8 Bd6+ Bb8 Bc5 Rh4 Bd4 Rhg4 Bc3 Kc7 d8B+ Kd7 Nc6 Ba7 Ne7 Ke8 Bc7+ Kd7 Bb8 Kd8 Qc6 Nfd7 Bd6 Rg6 Qd5 R6g5 Qa8+ Nb8 Rg1 Qd4 Bf1 Qf4 Rf2 Qh2 Rgg2 Ng1 Re2 Qg3 Nh2 Nef3 Rgf2 Qh4 Bg2 Qg3 Nc8 Nd7 Rf1 Qf2 Ne7+
1RR2b2/K1N2kqR/5rBp/1b3r1Q/Q3Q1Qb/2R2B2/Nn3pr1/Q2R3b b - - 0 1 illegal: No possible last move
qR3q2/B5kr/1RRrR3/2p4B/nN5B/nRQ2r1N/3QB1pK/3Bq2n b - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kd3 Kf8 Ke3 a5 b4 h5 d4 h4 d6 c6 g5 g2 b6 h3 d7 a4 d5 a3 f5 a2 Kf4 h2 Kg3 Nf6 e4 Qe8 d8R Kf7 d6 Kf8 e5 Nfd7 f6 Rh5 b5 Na6 b7 Rh6 b8R Nb6 e6 Rh8 e7+ Kf7 d7 Nc5 g6+ Kg8 g7 Nc4 f7+ Kh7 g8B+ Kg7 f8Q+ Kg6 b6 Ra3 b7 Nb2 Be2 f1R Be3 f2 Nh3 Rh4 Qg7+ Kf5 Nc3 Nc4 Rdc8 Nd2 d8B Ra8 Nd5 Raa4 Nb4 Nb1 Qd2 Rh7 Bb3 Ra6 Qgc3 Kg6 Bbd1 Na3 Rb1 a1Q Rb3 Na4 Ba7 c5 Rc6+ Kf7 Rg1 h1N+ Kh2 Qf8 e8B+ Kg8 B8h5 Rb6 Re6 Rd6 Bh4 Qa2 Rf6 Kg7 Re8 Qa1 b8R Qa2 Rb2 Qd5 Rb3 Qa8 Re5 Re1 Re4 f1Q Ree6 Qf2 Rb6 Rf1 Rc6 Qe1 Rb6 Rd3 Rec6 Rd4 Rfe6 Rf3 Rf1 Re3 Rff6 Rf3 Rb8 Rd6 Rcb6 Rd5 Rec6 Rd6 Re6+
B1QBNR2/4N1BB/1n1b3k/3bpKN1/4pp2/b1N2N2/nr1B2R1/Q5rn b - - 0 1 legal: proof: d4 b5 g4 e5 f4 h5 gxh5 c5 dxc5 d6 a4 Be6 axb5 Bc8 f5 Qf6 e4 Qe6 fxe6 d5 Ra6 dxe4 Ra5 Bd7 Ra1 Bc8 Kf2 f5 Kg3 g5 c4 a5 b4 g4 h4 a4 h6 a3 e7 Kf7 e8N Kg6 c6 a2 b6 Bb7 c7 Ra7 c8N Nc6 h7 Ba6 h5+ Kf7 b5 Na5 h6 Kg6 c5 Bg7 c6 Rf7 b7 Nf6 b8B Rb7 b6 Nb3 c7 Bd3 Rh2 Nc5 Rg2 Na6 Nf3 Nc5 Nc3 Bc2 Bd2 Bf8 Ba6 Rg8 h8B Nd3 h7 Nc1 Bg7 Nd5 h8N+ Kh5 Qe1 Bb3 Nf7 Bd6 N7g5 Kg6 Rb1 a1B Ne7+ Kh5 c8B Na2 Bb5 Bb2 Bc7 Bba3 Bc6 Rb8 b7 Nb6 Bd8 f4+ Kh2 g3+ Kh3 Bd5 Bf5 Rc8 Bh7 Rb8 Bh8 Kh6 Kg4 Rg6 Kf5 Rg8 Rb2 Rg7 Qa1 Rg6 Rg1 g2 Rgb1 g1N Bg7+ Kh5 Rc2 Nh3 Rg1 Nf2 Rg2 Nh1 Rc1 Ra8 b8Q Ra4 Qc8 Rb4 Ba8 Rb2 Bh8 Kh6 Rb1 Rc2 Rb4 Rb2 Rc4 Bc7 Rc6 Bb8 Rf6 Bbd6 Rf8 Rg8 Nh3 Rg4 Nhg5 Rg3 Rf2 Rg1 Rg2 Nd7 Bf6 Nb6 Bg7+
1n3qk1/3p2Q1/3Q1r2/1QQp4/R1N2bQK/qnq1n1p1/1RR1N3/1BBR2R1 b - - 0 1 illegal: No possible last move, all moves rejected
q2Q2KN/1bB2B2/n1nR1p1b/1NB1BNp1/1Rp1NBQ1/N4k2/q1q5/5q2 b - - 0 1 legal: proof: f4 d5 a4 b5 axb5 d4 f5 a6 g4 d3 g5 e6 g6 exf5 cxd3 f6 d4 f4 d5 Bh3 Bg2 Bg4 Bf1 Bc8 h4 a5 h5 Kd7 Bg2 Ra6 Bh3+ Re6 Bf1 Re7 Ra2 Rf7 gxf7 g5 Ra1 h6 Ra3 Rh7 Ra4 Rg7 Ra1 Rg6 hxg6 h5 Kf2 Kd6 Kf3 Ke5 d4+ Kf5 b4 c5 b6 a4 d6 h4 e4+ Ke6 Kg4 f3 Kh5 f2 b5 h3 e5 Kd5 b7 Ke4 b6 h2 d7 a3 g7 a2 Kg6 Ne7+ Kh7 Ng8 d5 Ne7 g8N Qe8 d8Q Nd7 b8B Nf5 e6 Nd6 e7 Nb5 b7 Nc3 d6 Ne5 d7 Ne2 Nh6 Bg7 f8B Ng3 Nf3 Nc4 Bcf4 Qh5 e8N Qg4 Na3 Qh4 Kg8 Qh5 Nd4 Ne2 Rb1 a1Q Rb4 Ne3 Bbe5 Nd5 b8B Qa2 Nhf5 Bb7 Bbc7 Bh6 Ndb5+ Nd4 Bc4 f1Q Qg4 Nc6 Rg1 h1Q Bb3+ Kd3 Ned6 Q5h2 Ne4 Qhc2 Be7 Qhf3 Rg3 Ke2 Rg1 Nb6 Bf7 c4 Bc5 Na4 Rh1 Qf2 Rd1 Qf1 Bce3 Nc5 Rd6 Na6 Bc5 Qh1 Qe7 Qe1 d8N Qed1 Be6 Qf1 Nf7 Qab1 Qd8 Qba2 Qg1 Q3g2 Nh8 Kf3 Bf7 Qg4 Nfg3 Qc8 Nf5 Qa8 Qg4+
R2r1NR1/q1b2K1B/1BqB1bR1/1BB2b1n/1nn4R/4k2q/Q2r4/Qr2N1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 g4 c5 d4 h5 f4 e5 g5 a5 f6 a4 d6 a3 g6 h3 d5 h2 g7 h4 f5 h3 d7 a2 b6 Be7 b7 Ra5 d6 Qf8 d8R Na6 b8B Ra3 b5 Rb3 f7 Bh4 f6 Ne7 g8B Ra3 b6 Nc6 b7 Rh5 d7 Qe8 f8B Rh8 f7 Rd3 Ne2 Bf6 Na3 Rd2 Nd4 Ke3 Kd5 e4 Rg1 h1N Bb5 c4 Bbd6 c3 b8R h2 Rb6 c2 Bh7 Ng3 Bb2 c1R Nc2+ Kf2 Bc3 h1Q Ne1 Ne5 Ba5 Rb1 Bc5 Qh3 Bfd6 e3 f8Q e2 Qg8 Ke3 Qf7 Qe7 Rg8 Nc4 d8R Qa7 Rc6 Bg4 Bab6 Bf5 Ra8 Nh5 R1g4 Bg6 Ke6 Nb4 Qa4 Qa6 Qa7 Bc2 Kf7 Bf5 R4g6 Qb7+ Rc7 Qc6 Rd7 Rb3 Rb1 a1Q Qa2 Rbb2 Rc1 Rb1 Ne6+ Qd4 Rgc8 Re8 Nf8 Rd8 Qa1 Qhg2 Q7a2 Qh3 Nf3 e1B Rd1 Beh4 Rdg1 Bg3 Ne1 Ke2 Be5 Qe3 Rd4 Qa3 Bed6 Ke3 Be7 Bc7 Bed6 Qa4 Nd7 Rh8 Rcg8 Qa7 Nf8 Rdd1 R8g7 Rg8 Ne6 Rb8 Rg8 Rd8 Nf8 Rd2 Rh4+
Rn1n3b/3BNQ2/brQqb2q/Bk5N/1r3q2/1qBNR1B1/q1B5/N2N3K b - - 0 1 illegal: No possible last move, all moves rejected
8/3KQR1q/bNQBQR2/k4NRb/r4Qr1/2b2rnq/Q3B2n/RnRb4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 Ke4 c5 b4 Kc7 f4 Kb6 g4 a5 d4 h5 f6 a4 f5 c4 d6 h3 Kd5 h4 g5 a3 f7 h2 f6 h3 g6 c3 g7 c2 d7 a2 Ke6 e4 d5 e3 d6 e2 Qe1 Qc7 Na3 Rh5 Bf4 c1N Nf3 Qc3 Nd4 Be7 f8R Rf5 f7 Nc6 Rb1 Nf6 g8R a1R Rg5 Ra2 Ra1 Ng4 Bg3 Na7 Nc4+ Kb7 b6 Ka6 b7 Nb5 b8R Na3 Rb7 Nb1 Rc7 Bb7 d8Q Bf6 d7 Qc2 Rg1 h1B Qc8 h2 d8Q Bf3 Qd5 h1B Bd6 Nh2 Qd7 Bh5 b5+ Ka7 b6+ Ka6 Qd2 B1f3 Q7c6 e1Q+ Qe2 Ra5 Re7 Qh4 Kd7 Qh3 Qde6 Qd3 Qa2 Ne2 Rh1 Ng3 Rg1 Bd1 Be2 Bc2 Re1 Rf4 Rc1 Qh7 Nf5 Rh4 Rd8 Rg4 f8Q Bh8 Reg7 Rb8 Qfe7 Bd1 Rf8 Ra4 R7g6 Be5 Rgf6 Bd4 R8f7 Be5 Nce3+ Ka5 Nd5 Ba6 b7 Bb3 Qc4 Bd1 Qf4 Rc8 b8Q Rc3 Qa8 Rf3 Qc6 Bc3 Nb6
1q6/1N2kn2/NRB2B2/r1q1bb1R/3b1QNn/1R5N/1r1RN2K/Rqr1Q1r1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 c5 f4 h5 Kf2 e5 Kg2 a5 d4 e4 b4 h3+ Kh2 c4 d6 c3 g5 e3 f6 c2 f7+ Kd7 d5 a4 b6 h4 f5 e2 b7 e1B b5 a3 g6 a2 g7 Qf6 b6 Bf2 Bg5 c1R Bg2 Nc6 b8R Qd8 f6 Bd4 b7 Nce7 Nc3 Rh5 Qe1 Rb1 Nce2 Nh6 g8N Bg7 f8Q Ng6 f7 Rb2 Bf6 Rg5 Be4 Ra5 Bg2 Nf5 Nh6 Ne5 Ng4 Qc7 Be4 Qc5 Bf3 Bh8 Qh6 Bg7 f8R Nf7 Rh8 Rg6 Qf4 Be5 Rb1 a1Q Rh5 Qaa3 Bg2 Qab4 Ra1 Ke8 d7+ Kf8 d8N Bd4 Bg5 Bge5 d6 Rg8 d7 Rg7 Bh6 Ke7 Bc6 Rg6 Bg7 Qbb6 Ra8 Qc7 Ra6 Qb8 Rb6 Rg5 Ne3 Rg3 Ng4 Rc3 Ne6 Rc1 d8N Bd7 Nc7 Bc8 Nf3 Be6 Rg1 Bd7 Na6 Be6 Kh1 h2 Ng5 Bd7 Kg2 h1R Nh3 Bc8 Rf1 Rg1+ Kh2 Be6 Rf2 Bd7 Ng5 h3 Rg2 Nh4 Rb3 Qc7 b8R Bf5 R8b6 Q7d6 Nb7 Qb8 Kg3 h2 Nh3 h1Q Bh8 Rf1 Rf2 Qe4 Kh2 Rg1 Bf6+ Ke6 Nc3 Qc2 Rd2 Qb1 Bg7 Ke7 Ne2 Ng2 Bh8 Nh4 Bf6+
3bNQ1B/1r1R2bN/2n1r1nN/kq4bN/1B1Nb2R/8/BB1B4/1q1QqnK1 b - - 0 1 illegal: No possible last move, all moves rejected
1bbN2bn/B5qQ/3b1r1k/B1QRR2B/Q3B1rr/3r2bn/1Q1N1B1Q/4K3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 f4 Kg7 b4 c5 d4 h5 b6 a5 b5 e5 b7 e4 g5 e3 g6 e2 f6+ Kh6 g7 a4 b6 a3 f7 c4 d6 c3 d5 h3 d7 h2 d6 h4 f5+ Qg5 d8B h3 d7 c2 f6 a2 Bg2 Ra4 Nd2 Rh7 Ngf3 Ra7 Nd4 Ra6 Ne6 Bd6 f8Q Nc6 b8Q Nce7 b7 Ng6 f7 N8e7 g8B+ Rg7 Bb6 Nd5 d8B Nh8 Bf2 Nf4 Be4 Ra3 Ba7 Rd3 Ba5 Qe5 Rg1 h1R Nd8 h2 Ba3 c1R B3c5 Qb2 Bf2 Rc6 Qa4 Nh3 Rd1 a1B Bgh7 Qf6 Bhg6 Bae5 Bh5 Ra6 Qe7 Rg4 f8Q+ Qg7 Qf5 Bg3 Qbc7 Bgf4 Qcc5 Bb8 Qee8 Rf6 Qeb5 Bfd6 Rf1 Rh4 Qbb3 Rg1 Qb2 Rgg4 Rg1 h1B Rg3 Bbc7 b8Q Bg2 Re3 Bf1 Q8b4 Bb8 Qbe5 Bg2 Qh2 Bf1 Qb2 Bg2 Bb7 Bd5 Re5 Bf7 Be4 Bg8 Nb1 Rb3 Rdd5 Ra3 Kd2 e1B+ Ke2 Rd3 Kf1 Bc3 Nd2 Bb4 Ke1 Bc3 Re6 Bce5 Re8 Bf4 Ree5 Bg3 Qh7+
1nK2R2/1r2b2Q/2RQ2N1/Q1rQR3/1r1BbpR1/q1RB1N2/2q3Qb/k3q1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 g5 h4 a5 b6 f5 d6 c4 d7 a4 Ke6 f3 e5 c3 h6 f4 d5 f2 h5 a3 h7 a2 b7 c2 h6 Kb3 d6 g4 Bd3 f1Q Nf3 g3 Be3 g2 Rh4 g1B Bd4 Qh3+ Rg4 Qhh4 Qd2 c1R Qg2 Qh2 Nh4 Qa5 Nd2+ Ka4 b4 Ka3 b5 Qa6 b6 Be3 Ng6 Qh3 Nf3 Rc2 Rc1 Rb2 Rc6 Nf6 Rc3+ Rb3 Rc6 Rg8 h8R a1Q h7 Rg7 Rg8 Ra7 h8Q Qh2 Qh7 Be7 Rf8 Ne4 Rc3 Bg1 Rf6 Nc6 b8Q Rc7 b7 Nf2 Qa8 Kb2 b8Q Bb7 d8R Q1a5 d7 Rb4 Rdf8 Ka1 d8Q Nh3 Qd5 Rf7 Qbd8 Nb8+ Q8d6 Rc5 Qa7 Qa3 Qab6 Qg3 Qbd8 Q6a4 Qa5 Nc6 Kd7 Qe1 e6 Bh2 Kc7 Qc2 Kd7 Ba8 Kc7 Ng1 Kc8 Bd8 e7 Nb8+ Q5c6 Rg7 e8R Rgb7 Re5 Be7 Qd5 R7b6 Qc7 R6b5 Ra6 Bc6 Qcd8 Rb7 Q5d6 Be4+ Rc6 Qe3 Qd5 Qe1 Q8d6
3QK2B/q2R4/1nQpN1B1/2b1Q1rr/QB1B1qr1/2nbq1k1/1N4R1/2bB3Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 b4 g5 c4 d3 f4+ Ke4 h4 g4 b6 g3 f6 g2 h6 d2 b7 a4 h5 a3 b5 a2 f5 Kf4 h7 Ra6 b6 Nh6 f7 Ra4 f6 Ra3 Rh2 Rh3 Be2 Qe8 Qa4 Rf3 Nc3 Bg7 f8B e5 Kd6 e4 f7 e3 c5+ Qe4 c6 Rh3 c7 Rg3 Nf3 d1Q+ Nd4 g1Q Rg2 Qf3 Ke7 Qh2 Ke8 Ng8 h6 Qdg1 Bd1 Rg4 Bb2 e2 Bb4 e1B f8Q+ Bf6 Rc1 a1R Qc5 Bd2 Qcc6 Be7 Rb1 Bc5 Ne6+ Ke5 Rc1 Qhf4 Rc2 Bc1 Rcd2 Q3e3 Rd3 Na6 b8Q Rb1 b7 Nf6+ Kf7 Rhg8 h8B R8g5 h7 Ra1 Qa8 Nb8 Rd6 Kf5 Rd4 Nd5 Ke8 Rh5 Rdd2 Ra2 Bd4 Rhg5 h8Q Ra3 Qh1 Rh5 Qab5 Ra5 Na4 Nc3 Ba1 Rhg5 Nb2 Qgf2 Qe2 Rb5 Qa4 d6 Rc2 Nd7 b8Q Bb7 Qd8 Ba6 c8B Nb6 Qee1 Ra5 Re2 Bd3 Ba6 Be4 Bd3 Qg1 Bb1 Bd3 Rc2 Qgh2 Rcf2 Qh7 Rf3 Rb5 Rh3 Qa7 Rh7 Rh5 Rd7 Rgh4 Re2 Kg4 Rf2+ Kg3 Bbc2 Bc4 Bg6 Bd3 Bh8 Rg4 Qe2 Bd4 Qee1 Rbg5 Rd2+ Qef2 Qe5 Qe3 Rh2 Bc5 Rd2 Rh2 Rg2+ Kh4 Rb7 Ne2 Nc4 Rh3 Bd4 Nc3 Nb2 Rh2 Rf2 Kg3 Rd7 Rhh5 Rg2#
b4B2/knnb1N1Q/4B3/1b6/5q1b/K1RQNrB1/Qnp5/rbRQQB1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 c5 Kd2 Kc7 Kc2 Kb7 Kb3 a5 g4 h5 g6 f5 g7 h4 b6 f3 d6 f4 g5 f2 e5 c4+ Ka3 h3 b4 a4 d7 c3 e6 f3 g6 h2 d5 c2 d6 Ne7 g8B Qc7 d8Q Nbc6 b5 Rh3 d7 Rh4 g7 Rg4 Bh6 Na5 Nd2 Nd5+ e7 Qe5 Nh3 Rg3 Ng5 Qf4 Be6 Nc7 g8Q Ra6 Rg1 h1B Nc4 Bg2 Ne3 Nc4+ Ka2 a3 e8B Bd6 Qe7 Nb2 d8Q Bd7 Qeh7 Be7 Nf7 Bh4 Bf8 Ra4 Kb3 a2 Rc1 Ra5 Qe7 Kb8 b7 Ka7 Qa3 a1N+ Ka2 Nb3 b8B+ Kb7 b6 Nc5 Qhd3 Ka8 Qe1 Nb7 Qgh7 Bh1 Kb3 Bg2 Qad6 Ra1 Qdd1 Bh1 Q6d3 Rh3 Rg5 Rg3 Rc5 Rh3 Bg2 f1B Rc3 f2 Be4 Rf3 Kb4 Ba4 Bb5 Be2 Bbc4 f1B Ba6 Bb3 Bb5 Ba2 Ka3 Bh3 Bbc4 Nd5 Bbd6 Nc7 Ba6 Qg5 Bg3 Qf4 Bac4 Rf2 Bg2 Rf3 Bf1 Bb1+ Ba2 Na5 b7+ Ka7 Bd5 Bd7 Be4 Kb6 b8Q+ Nb7 Qa8 Bg2 Kb4 Bh1 Be6 Bg2 Qa2 Bh1 Ka3 Ka7 Q3d2 Beb5 Qd3 Rf2 Rb3 Na5 Bg6 Ba8 Be4 Nb7 Bh1 Rf3 Rc3
RbK2RBq/BnR1b3/b2B2r1/n1r4k/N1R2p1B/Q1B2Q1r/RN3bb1/8 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 Ke4 f5+ Ke5 Kf7 e4 a5 b4 g4 h4 c4 d4 a4 h6 Kg6 d6 g3 d7 g2 Ke6 f3 h7 f2 b6 a3 e5 c3 d5 f4 b7 a2 h5+ Kg5 b5 c2 d6 Nf6 b6 Ng4 h6 Ra4 Nc3 Nc6 b8B Na7 b7 Ra3 Be3 c1B Na4 Be7 Ne2 g1B Nb2 Qe8 Nc3 Rf8 h8R Rf7 h7 Rg7 Rf8 Rg8 h8B Nf6 Qf3 Qg6 Bc4 f1B Nca4 Rb3 Rh7 Nb5 Bea7 Qh6 Bc7 Qh1 b8R Nd5 Ra8 Ba6 d8Q Nb6 d7 Bg2 Bd6 Bce3 Qc8 Bd4 d8B Bdf2 Qc5 Qh5 Bd5 Nc4 Kd7 Na5 e6 Rg6 Bc3 Ra3 Rc1 a1R Rc2 Rb3 Qa3 Rc1 Rc8 Qh2 Rc4 Qh5 Rg7 Qh8 Re2 Nd4 Rgf7 Nb7 Kc8 Nc6 Rc2 Nca5 Rd2 Bf6 e7 Rc2 e8R Be7 Nd3 Rc1 Ra2 Kh4 Ndb2 Rc2 Qe4 Kh5 Rg7 Rc1 Bg8 Rc2 Bd2 Rh3 Bc3 Bb6 Qc6 Bc7 Rgf7 Bb8 Rg7 Bh4 Rc7 Bc5 Qe4 Bhf2 Bh4 Bb4 Bde5 Be7 Bd6 Rc1 Qf3+ Rg4 Kd7 Rf1 Bce5 Rc1 Rd4 Rc6 Rc4 Rc5 Qd5 Rg7 Bc3+ Rg5 Qf3+ Rg4 Bb6 Ba7 Ra8 Bb8 Kc8 Qg7 Qd3 Qh8 Ba7 Rg6 Qf3+
4kR1r/KQ3nn1/1BNQN1pb/3B1Q1r/2R5/B1n2Q1Q/1r4qn/1nB1B2b b - - 0 1 illegal: No possible last move, all moves rejected
2r1R1N1/2Nn2nk/1B2b2R/2b2Qn1/qbNnQR1K/3NRp2/1N1r1R2/3r3B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 e4 a5 b4 f5 d4 Kf7 h4 Kg7 b6 c5 d6 a4 h6+ Kh7 b5 c4 b7 c3 d5 g4 e5 a3 e6 f3 Kg3 c2 e7 a2 e8Q f2 b6 Ra7 d7 Ra3+ Nc3 Ra5 d6 Rd5 h5 Rd2 Nf3 Qf6 d8R Nc6 b8R Be7 b7 Qf8 d7 Rd6 Ne1 Rd2 Rh4 Rd6 Be3 c1R Bb6 Nf6 Bg2 Nd4 Qc2 Nb3 Bh1 Rd5 Nd1 Ra5 Nd3 Ra3 N1b2 Rf1 Re1 a1N Re3 Bc5 Qe4 Nd2 Re8 Ra2 d8N Nab3 Nf7 Bb4 Nd6 Rd1 Ndc4 Nd7 Rh2 f1N+ Kh4 g3 Rf2 g2 Rf4 Kg8 h7+ Kg7 Qb1 g1B h6+ Kg6 Ra8 Nd4 b8N Ng3 Na6 Nh5 Nc7 Ng7 Ra6 Rg8 h8N+ Kh7 Ng6 N2f3+ Kg3 Qf7 Ne7 Ng5 Kh4 Qf6 Rf2 Qc6 Qc2 Rf8 Ng8 Qa4 Rf4 Raa1 Qb1 Rd2 Qc2 Rad1 Rf2 Kh8 h7 f4 Qf5 f3 R8e4 Nf6 Rf4 Be6 Qe4 Rc8 Qf5 Qa2 Qa4 Nd7 Qc6 Nh5 Qce4 Kg7 h8R Qa1 Rh6 Qa4 Rg6+ Kh7 Ra5 Ng7 Re5 Bd5 Re7 Be6 Re8 Bh2 Rg4 Bhd6 Rf4 Bdc5 Rh6#
2B1B1n1/bR6/B1R1nR2/1RbBNR1b/1B2Knb1/q1Q1p1k1/5QN1/rrr5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 b4 d5 c4 h5 g4 a5 b6 h4 b7 d3 c5 a4 b5 d2 c6 d4 b6 d3 g6+ Kf6 g5+ Ke7 g7 Kd6 c7 a3 g6 h3 f6 a2 f7 h2 Na3 Be7 f8R Nc6 b8R Na7 b7 Nc6 Qb3 d1R Ne2 d2 Qc3 Bd7 c8B Bg4+ Ke4 Bh4 f4 Bf2 f5 Bh3 f6 Bg4 f7 Bc5 Nf4 Qa5 Ng2 Nd4 Ba6 Ne6 Rf1 h1N Rf5 Bh5 Rb1 a1B Rb5 Rg1 Rf6 d1B Bd2 Bdg4 Rf5 Rb1 Nc4+ Ke7 Rb6 Qa3 Rc6 Bb2 Rf6 Bc1 Be1 B1e3 Rf5 Ba7 Rf6 Bec5 Rf5 Nh6 g8B Rc1 Bh7 Ng8 g7 Rb1 Bg6 Ng3+ Kd5 e4 Ne5 e3 Rf6 Ne2 Ke4 Nh6 g8B N2f4 Rd8 Nd4 Rd5 Nde6 f8R Rh7 Be8 Rc1 Bgf7 Ng8 Rf5 Bd4 Rb5 Bdc5 Rg5 Kf6 Rf5+ Kg7 Bd2 Kh6 Rf6+ Kg5 Be1 Nd8 Bd5 Rh6 Qd4 Rb1 Bb4 Nde6 Qc3 Rh8 Ne1 Kh4 Ng2+ Kg3 Rf5 Bab6 R8f6 Ra7 Ra8 Rh6 b8Q Rhh7 Qd6 Rhc7 Rb8 Ra8 Qd8 Ba7 R8b7 Rd7 Bc4 Rdd1 Qdd2 Rdc1 Bd5 Qa2 R7b6 Bb8 Bab7 Ra6 Qe2 Ba7 Qf1 Ra4 Ba6 Qb3 Qe2 Raa1 Rb7 Qa3 Qf2+
6qQ/QBrrBNb1/1n1Q1B2/Q1b2bK1/Qn1n2p1/Nb4R1/6BR/3k1r1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kf4 f5 b4 c5 h4 g6 d4 a4 e4 a3 e6 Kd6 e5+ Kc7 b6+ Kb7 d6 Kc6 d7 Kd5 b7 g3 h5 c4 b5 g2 b6 a2 e7 c3 e8B c2 h6 Ne7 e6 Nbc6 b8Q Ne5 b7 Nd3+ Kg5 Ke4 h7 f4 d5 f3 d6 f2 Ba3 Ke3 Nh3 g1R+ Bg2 f1B Rh2 c1N Qa4 Ke2 Qba7 Nb3 b8Q Nd5+ e7 N3b4 Bb2 Rh1 Bf6 Nb6 Na3 Nd4 Qbc7 Rg8 h8Q Rg7 Qc5 Rb8 Qca5 Rb7 Rb1 a1B Rb3 Rc7 Rg3 Ke1 Bf7 Qe8 d8Q Bc4 d7 Bb3 Bfd5 Kd1 Bb7 Rf1 Bh1 Qf7 e8B Qg8 Qe7 Rh7 d8B Bf5 Qd6 Rhd7 Bde7 Bc3 Bf7 Bg7 Bfd5 Be1 Be5 Bf2 B5f6 Bg1 Bdg2 Be3+ Kh4 g5+ Kh5 g4 Ng5 Bf4 Nf7 Be5 Qdc6 Bd6 Kg5 Bc5 Qd6
NB1q2nr/b1r1k3/2B3rB/2Q1R1n1/b1bn1pNB/6N1/1N1r3B/1Q1RK1N1 b - - 0 1 illegal: No possible last move
R2N1k2/7b/Q1B1R2b/pB3B2/4rq1r/1r1R2Br/Rn1n2QB/K1nb1N1R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 c5 Kd2 a5 Kc3 h5 b4 f3 Kb2 f4 g4 f2 d6 h4 b6 f3 e5 h3 b7 c4 b5 h2 b6 Rh5 e6 Qc7 g6 Bh6 g5 Bg7 d7+ Ke7 d8R Bf8 g7 Na6 b8R Nb4 d5 Rh3 g6 Qf4 b7 Qg3 d6+ Kf6 d7 Ke7 Ra2 c3+ Ka1 c2 Qd6+ Kf6 e7+ Kf5 e8B Qf4 Qa6 Nd3 Ne2 Nb2 Nd2 Nf6 g8B Bh6 g7 Ne4 Be6+ Kf6 g8Q Ke7 Qg2 Kf8 Nd4 Ra7 Be2 f1R Bb5 f2 Ra8 Re1 b8B f1B Nc6 Rb7 Bf5 Be2 Nf1 Bd1 Be3 c1N Bf2 Nd2 Bg3 Rb6 Be5 Bb7 Rdb8 Re4 d8R Bc8 Rd3 Be6 Nd8 Bg8 Rb7 Bh7 Re7 Rb8 Bbc6 Rb3 Re6 Rh4 Bb5 Rh3 Bec6 Rh4 Rg1 h1R Bc7 R1h2 Rh1 R2h3 Bh2 Qf2 Bcg3 Qe3 Rd5 Qf4 Rd3
3r1BB1/3p1B1R/1nRKQB2/rk1N2Rr/b5R1/Rn1bnq1N/2Q5/2b1B2r b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 a5 Ke4 g5 Kd5 g4 h4 d3 b4 d2 c4 g3 f4 a4 c5 a3 f6 g2 h6 a2 f7+ Ke7 c6 e4 f5 e3 c7 e2 h7 e1R h5 Na6 b6 Qe8 b5 Re6 b7 Re3 b8R Ra7 b6 Nc5 h6 Rb3 b7 Na4 Qc2 d1B Bc4 Rh3 Nc3 Be2 Bd2 Bg7 f8B+ Kf7 f6 Nc5 Be1 Qe3 Kd6+ Ke8 Nd5 Rh5 Nh3 Bd3 Rg1 Na4 Rc1 a1N Ra8 Qf2 b8R Qf3 Rb5 Nb6 Rc5 Ra2 Ra3 Ba6 c8B Bb5 f7+ Kd8 Ba6 Nf6 Bb7 Rg8 h8B Ba4 h7 Bh6 Bc6 Ng4 Bf6+ Kc8 h8R Nb3 Rh7 Ne3 Ba8+ Kb8 Rc6 Ka7 Rd1 Bg6 Rd4 Bd3 Rg4 Ra1 B8g7 Rc8 f8Q Rd8 Qe7 Bg5 Bf8 Bh6 Rh1 g1R Qe6 Rf1 Rh2 Rh1 Rhg2 Ra2 Rg5 Ra1 R2g4 Ra2 Ne7 Ra1 Bd5 Ka6 Bb7+ Kb5 Ba8 Nc5 Bb3 Ra2 Nd5 Ra1 Ba2 Nb3 Qe5 Qf5 Ne7+ Ned5 Rc7 Qf2 Rg6 Nc1 Rac3 Be3 R6g5 Bb3 Bb7 Qf3 Ba6+ Ka5 R7c6 Bd2 Bb5 Ne3 Bc4+ Kb4 Bd5+ Kb5 Qf5 Bbc4 Bb3 Ra5 Ba2 Bb3 Bg8+ Ka6 Qe4 Ba4 Bad5 Kb5 Ra3 Nb3 Bdf7+ Ka6 Qf5 Bc1 Nd5 Kb5 Qe6
B1br1Q1K/n2Br1Nb/3q2R1/n1k1q1NR/4B2R/5bbR/1p1B4/RQ1B1n2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 h5 g4 c5 a4 e5 d4 b5 f4 c4 f6 c3 f7 h4 f5 b3 a5 b2 f6 h3 g6 c2 g7 b4 a6 b3 a7 h2 g5 Nh6 g8B Qc7 g6 Qd8 g7 Qc7 Nc3 b1B Bd3 b2 Nce2 Rh7 Nh3 Nc6 Ng3 Qb7 Nh5 Nb8 Ng5 Rh8 Bd2 Be7 f8R c1Q Be6 Qa6 g8B Qa2 f7 Ng4 Kf5 e4 Kg6 e3 Kg7 e2 Bd7 e1N Be4 Nf3 Re8 Qa4 f8Q Qc5 Bf7 Bd3 Qb1 Ne3 Bfe6 Qb3 Bg4 Ne5 Bd1 Nbc6 Rg1 Rb8 a8B h1B Rg3 Rb5 Rh3 Na5 Rh4 Nf1 Rd8 Kc7 d6+ Kb6 d5 Bf3 Re8 Bd8 Re6 Qbc3 Rg6 Bc7 Rh3 Rg8+ Kh7 Rg7+ Kh8 Re7 Ng7 Nec6 Bg4 Bb8 Bef5 Qg1 Rh5 Re4 d7 Re7 d8R Qgc5 d6 Na7 d7+ Bc6 Rd6 Q5d4 Bgf3 Rd5 Bh3 Bh7 Rg6 Bd6 Be6 Kc5 Re8 Rf7 d8R Qdd3 Bh3 Rc7 Re3 Re7 Rd7 Bh2 Re4 Qe5 Reh4 Rd6 Rb7 Rd8 Rb3 Qdd6 Bd7 Bf4 Bh1 Be4 Rbh3 Bg3 Bhf3 Bc6 Bfe2 B6b7 Bd3 Bf3 Bde4
nB1nNB1Q/1b6/N1q5/Bb3B1N/1r3pr1/1R5N/1kqN2QK/2b1rRrB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 Kd6 h4 Ke5 b4 Kd4 e4 f5 d6 a5 h6 g5 h5 c5 e5 g4 d7 g3 b6 c4 e6 a4 e7 c3 e8B a3 h7 a2 h6 c2 b5 Be7 b7 Qa5 d8N Bf8 b6 Bc5 Nh3 Nc6 b8B Bb7 Bd3 Na7+ Qf3 Be7 Rf1 Bc6 b7 Qd5 Ba3 c1Q Nf7 Nc8 Nd6 Qc2 Bd7 Ra7 Ne8 Bg5 Bf8 Ra4 Be4 Nge7 Qg4 Rg8 h8N Qe6 h7 Rb4 Ng6 Nb6 h8Q+ Qf6 Kh1 g2+ Kh2 g1R Bh1 Na8 Qg2 f3 Ngf4 f2 Nh5 Kc4 d4 Kb3 d5 Kb2 d6 Bc1 Nd2 f4 Bc8 Rg4 d7 Bb5 d8B Nc6 Ba5 Nd8 Bf5 Bc6 Re1 f1B Re3 Bfb5 Rc3 Bf3 Bbd6 Qh6 b8N Bb7 Na6 Qg6 Bb8 Qc6 Ne4 Be3 Rf1 a1R Nd2 Re1 Nb1 Bc1 Nd2 Rg3 Qg7 Rg6 Qh8 Rg4 Rb3+
r4N1K/kn6/1b1nb2B/pR3RB1/1B4Qn/R1RBRr1q/1q6/1n1N1BqQ b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 b4 Kb7 f4 h5 d4 a5 b6 h3 b5 h2 d6 c4 d5 h4 f6 h3 d7 c3 Kf5 e4 Kg6 c2 f7 e3 g5 e2 d6 e1N f5 Nc6 f6 Ra6 Ra3 Qc7 d8Q Ra8 d7 Nb4 Qg4 Ra7 Nf3 Qg3 Ne5 Bh6 f8R Qf2 f7 Qd2 Nc3 Nbd3 Nd1 Ka8 b7+ Kb8 Re8 Ra8 f8R Qb4 Rf5 Ka7 b8R Nf3 b6+ Ka6 b7 Ka7 Qc7 Nc5 d8B Qb2 Nd7 Nf6 Ree3 Rf8 Qc6 Ne8 Kh7 Nd6 g6 Nh4 g7 Rf6 Nf8 Be6 Rec3 Be3 g8B Bf2 Bh6 c1N Be7 N1b3 Kh8 Nd2 Bh7 Nb1 Qd5 Rf7 Beg5 Rf6 Rg1 h1Q Rgg3 h2 Rge3 Qg1 Qh1 Rf7 Rd5 Rf3 Bhd3 Qg3 Rf5 Qh3 Rc8 Bg1 Rc6 Bf2 Rb6 Bg1 Rb5 Bf2 Qhg2 h1Q Qg1 Q1g2 Qh1 Qg1 b8B+ Ka6 Bc7 Ncb7 Bcd8 Ka7 Bdf6 Qe2 Be7 Qb2 Ree5 Bb6 Re3 Nc4 Bc5 Ncd6 Bb4
Q2rQ3/N7/1K4p1/QBNB3q/Rb2qQ1b/n2q1R2/r1B2BBn/k2bqQ2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 c4 Ke6 h4 d5 b4 f5 e4 a5 b6 f4 b7 d3 c5 g6 b5 a4 c6 a3 b6 a2 c7 d2 h6 f3 Ke3 f2 Kd4 Bd6 h7 Ra7 h5 Ra8 h6 Qh4 Ne2 Ra7 Nbc3 Bd7 c8B Na6 b8Q Qd8 b7 Qe8 Qa8 Ne7 b8Q Nb4 Rh3 Rg8 h8Q Ra4 h7 Ra7 Bg2 f1Q Nb5 Qe1 Rf3 Ra6 Qa4 d1Q+ Bd2 Rf8 Nc1 Ng8 Bb7 Nh6 Nd3 Ng4 Be3 Nh2 Bf2 Qe7 Qc7 Rd8 Qaa5 Bc6 Na7 Ba4 Qf8 Qb1 h8Q Bd1 Qhg7 Qg5 Qh7 Qh5 Qhh8 Be7 Qc1 Bh4 Kc5 d4 Qff4 Nc2 Bc6 Na3 Bd5+ Kd7 e6+ Ke7 Ne5 d3 Nd7 d2 e5 Qbe4 Qc4 Bf6 Qf1 Bh4 Qc3 Ra4 Kb6 Ra5 Nc5 Ra4 Rc1 a1B Qa5 Bc3 Rc2 Bb4 Rc4 Nc2 Rd4 Ra2 Qg8 Na3 Rc4 Bc3 Ra4 Bb4 Qh8 Bc2 Qg8 d1Q Qh8 Qdd3 Qg8 Rd7 Qgc8 Rd8 Qcb8 Ke8 e7 Bd1 Qd6 Qh6 Qe6 Qh7 Bb3 Qh5 Bc2 Qhf5 Qd7+ Kf7 e6+ Kg7 e8B+ Kf6 Qg4 Ke5 e7 Qh5 Bf7 Qed4 Bd5 Q4e4 Re3 Kd4 e8B Kc3 Qf4 Kb2 Rf3 Ka1 Qdf7 Qhe5 Bb5 Qh5 Qe8
BQr4B/1bN1Q1n1/4n1pB/1Q3r2/1q1b1NKR/b6R/Q2Q1bBB/3nq2k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 h4 f5 b4 a5 d4+ Kd6 e5+ Ke7 e6 Kf6 d6 c5 d5 Ke5 h6 g6 b6 a4 e7 a3 e8B c4 b5 a2 h7 c3 h5 c2 b7 Ra4 h6 Qh4 d7 Na6 b8Q+ Nc7 d8Q Bb7 b6 Bc5 Qd3 Ne7 Nc3 Ra5 Bc6 Bf2 d6 Ne6 Rh3 Rc5 Bd2 c1B Nge2 Ba3 Qb5 Rd5 Rb1 a1B Rb4 Re8 Qdc7 Rc8 Ra4 Rc5 Nd5 Bc3 Qd8 Bcd4 Nc7 Rd5 d7 Rc5 Kg2 f3+ Kh2 f4 h8B+ Kf5 h7 Kg4 Qf8 Rd5 d8Q Nf5 Qfe7 Nfg7 Bc1 Rf5 Rb4 Bc5 Qd2 Bfd4 Bd5 f2 Qa7 f3 Nf4 Bab2 Qa2 Ba3 Bfc4 f1Q Bd3 Qd1 Bf1 f2 Kg2 Ba8 b7 Qe1 b8Q Bb7 Kh2 Ne8 Bf6 N8g7 h8B Ba7 Be5 Bab6 Bd3 f1N+ Kg2 Ne3+ Kh2 Nc5 Bf1 Nd1 Bd6 Nce6 Bh1 Ba6 Ba8 Bb7 Ng2 Bc5 Qdb2 Qh6 Rh4+ Kf3 Rb3+ Bc3 Kh3 Be3 Bh2 Bf2 Bg5 Qh5 Bh6 Qg5 Qc2 Qf4 Qd2 Qb4 Nf4 Bg1 Be2+ Kf2 Kg4 Bd4 Nfd5 Kg2 Rbh3 Bgf2 Nf4+ Kh1 Bc4 Nf8 Bf1 Nfe6 Bg2+
3N2BR/1Q2nBpr/7b/2RNQ3/2bB2Nn/qrrq1NB1/1nBr3N/2k1K3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 e4 f5 d4 c5 b4 a5 h5 f4 h6 a4 e6+ Kd6 h7 a3 e7 a2 e8B c4 e5+ Kc7 d6+ Kb6 d7 f3 e6 c3 e7 g3 d5 c2 d6 g2 Qd5 Na6 Bd3 Nc5 Nd2 Ra3 Bb2 c1N Qe5 Ra5 Bf7 Ba6 e8B Ne4 Bc2 Ng5 Nf1 Be7 Nh2 Ra3 Bc3 Qa8 d8N Rb3 d7 Bc5 Nc6 Ne7 d8N Be3 Rb1 a1R Bg8 Ra2 Bef7 Rab2 Ra1 Bf4 Ra5 f2+ Kd1 Nd3 Ngf3 f1R+ Ke2 Rc1 Bd4+ Nc5 Kf2 g1Q+ Ke2 Qd1+ Kf2 Ng6 Ne7 Qd3 Nd5+ Ka7 Ne6 Ne7 b6+ Kb7 Rb5 Kc6 b7 Na4 b8B Qa7 Ra5 Bc4 Bd6 Ra2 Bb8 Nb2 b5+ Kb7 b6 Kc6 Rb5 Qa3 b7 Bd2 Bc7 Bf4 b8Q Bd2 Bd1 Rcc3 Bc2 Bc1 Ke1 Be3 Ng4 Bc1 Nfh2 Nf3+ Kf2 Bf4 Ng5 Nh4 Ngf3 Bh6 Ra5 Ra1 Qc8 Rd1 Rb5 Rd2+ Ke1 Nhf5 Ra5 Nh4 Qd7+ Kb7 Rc5 Ka6 Rc6+ Kb5 Bd6 Ka4 Qb7 Qb4 Rc5 Ka3 Qe3 Na4 Bg3 Kb2 Qe5 Qa3 Be6 Kc1 Bgf7 Rg8 h8N Rf8 Bg8 Nb2 Nf7 Re8 Nd8 Rf8 Bgf7 Rh8 Bg8 Rh7 Bef7 Qa7 Qbc7 Qa8 Qb7 Qa3 Nb4 Be3 Qg5 Rh5 Qe5 Nhf5 Nf1 Rh8 Rh6 Nh4 N1h2 Bg5 Nd5 Bf4 Re6 Rh5 Rh6 Bg5 Rh8 Rh7 Bd1 Bh6 Bc2
rN1B1r1N/Q1p3k1/BR6/2Qn1QBK/1nn1Bqr1/qb2bQ2/5B2/1nQ3R1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 a5 Kg4 e5 d4 h3 f4 h2 b4 a4 d6 a3 d7 e4 b6 e3 d5 e2 d6 e1Q f6 h6 f5 a2 b7 Qd2 b5 Qd4+ Kh5 Qe8 d8Q Qd3 g4 Qee4 d7 Bg7 b6 Ra5 g5 Qec4 Nc3 Ra6 Nf3 Ra4 Nd4 Ra7 Ncb5 Qd5 Rb1 a1N Rg1 h1N Nc6 Qa3 Qf3 Na6 b8B Bf8 b7 Ra8 Ba7 Qd4 b8Q Qf4 Bf2 Ne7 Qa7 Nb4 Nb8 Ned5 g6+ Kg8 f7+ Kg7 Bc4 Bc5 Qg5 Nac2 d8B Rf8 Nd6 Nce3 Ba6 Be6 Rb3 Nc4 f6+ Kh8 Bd2 Be3 g7+ Kh7 g8B+ Kh8 Bfe1 Nf2 Bh7 Ne4 Bf2 Nec3 Be4 Nb1 Qf5 Nd3 Rb6 N3b4 Kg6 h5 Bc1 h4 Kh5 Rg8 f8Q h3 f7 h2 Qe7 Rg4 f8Q+ Bg8 Qh4 h1R Qhh3 Rg6 Nf7+ Kh7 Qe7 Kg7 Qc5 Rg4 Nh8 Be6 Rg2 Rf1 Rg1 Bd7 Qd1 Ba4 Bd2 Bb3 Qc1 Qe5 Bfh4 Rf4 Bf2 Qf6 Qf3 Qd6 Qc8 Rf8 Qcf5 Qf4 Rc6 Qd6 Qg3 Bd4 B2g5 Be3 Rb6 Qf4 Qf3
nNNQN1q1/2p3R1/rk2N2Q/b4qB1/6B1/4Nnnb/2b1QQQr/Kb1R4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 b4 h5 d4 a5 Kd2 e5 Kc3 a4 Kb2 h3 f4 h2 d6 e4 g5 e3 f6 h4 b6 Kc6 b7 e2 f5 e1Q b5+ Kb6 g6 h3 d5 Qee7 g7 Rh6 f7 Rh4 d7 Ra5 f6 Qe2+ Nd2 Ra7 d6 Ra5 Nf3 Ka7 b6+ Ka6 Rg1 h1B Ng5 h2 Nh7 Kb5 Bh3 Qe6 Bg4 Bg2 Nf1 h1B Ne3 Ne7 g8N Nf5 Ne7 Ng3 Qe2+ Kc5 Bd2 Qf5 Rad1 a3+ Ka1 a2 Bc1 Qe8 d8N Bh3 d7 Be4 Qg2 Bg7 f8Q Bb1 Ne6+ Kb5 d8Q Nd7 b8Q Ra6 b7 Kb6 Qf7 Qg8 Qg6 Bh6 f7 Bf4 f8Q Be5+ Bb2 Bc3 Qgh6 Ba5 Bf6 Rh5 Bg5 Rh4 Kb2 a1N Nf6 Nc2 Ne8 Nd4 Ka1 Nf3 Qa8 Bc2 b8N Bb7 Qe2 Bbe4 Qd5 Bb1 Qda2 Bec2 Rg2 Kb7 Rgg1 Nb6 Nc8 Na8 Qc5 Bg2 Qcd4 Rh2 Qdd2 Bh3 Qg2 Bd3 Qdf2 Be4 Qae2 Bec2 Rd7 Qc5 Rg7 Qf5 Ncd6+ Ka7 Rd1 Kb6 Nc8+
Q6b/qR3Rn1/2BKN1pn/1Br1R2Q/1NR3b1/rb2B2b/nn6/Bk3RB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 h4 a5 e4+ Kb4 b6 f5 h6 g6 h7 c4 b7 c3 h5 a4 d6 c2 h6 Kb3 d7 a3 d5 f3 d6 a2 Rh4 f4 Nh3 f2 Bb5 f1B Na3 f3 Nf4 f2 Be3 Na6 b8B Qe7+ Ne6 Bd3 d8Q f1B d7 Bfe2 Bba7 Bf1 Qh5 c1N Nc2 Bg2 Nb4 Ne2 Rf1 a1N Qa5 Ng3 d8R Rb8 Rd5 Bc4 Bad4 Nc5 Qa8 Qa7 Rf7 Ne7 Kd6 Nd3 e5 Bg7 Rc5 Rg8 h8R Bh3 h7 Nc2 Bc6 Re8 Rhf8 Rb5 h8B Ng8 Bg1 Bg4 Bde3 Nh6 Rf1 Ra5 R8f7 Ra3 Bb5 Bd5 Rc4 Bh3 Rhe4 Re7 Bc6 Rc7 Na6 Rb7 Ng5 Ka2 b4 Bcd7 b5 Nb2 b6 Na4 Rc3 Bdg4 e6 Bb3 e7 Bf6 Ne6 Nb4 Rcc4 Bg7 Bb5 Rc7 e8B Rc5 b7 Bd4 Bec6 Ngf5+ Kc7 Kb2 Bg7 Na2 Nb4 N4c3 Bf6 Nd1 Bg7 Kb1 Bf6 Qa4 b8R Qa7+ Rb7 Bb2 Bd8 Bh8 Bf6 Ng7 Kd6 Ra5 Ba1 Ra3 R1f6 Nb2 Re5 Bbd1 Rf2 Bb3 Rf1+
1q4kn/Q3R3/2rRQKB1/1N3N1B/qB1p4/brnBNb2/nq2B2p/2N3N1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 c4 h5 f4 h4 b4 d3 g4 h3 c5 h2 f6 d6 c6 d2 g6+ Ke8 f5 a4 c7 a3 b6 a2 f7+ Ke7 f6+ Ke6 g7 Nc6 g5 Qe8 b5 Bb7 c8B+ Qd7 g6 Ra3 Nc3 Rh6 Nce2 Ra7 Ba3 Nge7 g8B Rh3 g7 Ra4+ Bb4 Ra8 Nc1 Ba6 b7 Ra7 b8N Rc3 b6 Rf3 b7 Nd8 Be2 Rf2 Nc6 Bc4 b8Q Ra3 Na5 Nec6 Bh7 Bb3 Qe1 Bd1 g8B Rb3 Bca6 Rg2 Rb1 a1Q Nc4 Qb2 Ne3 Rg6 Qa7 Rh6 Bad3 d5+ Kf3 d4 Kg4 e4 Kg5 Qc8 Bg6 Qb8 Ra1 Bc5 Ra6 Bf8 Beh5 Bf3 B8h7 d1N Be2 Bd6 Rb6 Nc3 f8N+ Ke5 Ne6 Nf7+ Kh4 Nh8 Kg5 Bc5 f7 Kd6 Nc7 Ke7 Ra6 Kf8 Kf6 Bd6 Nb5 Bc5 Ba5 Nb4 Rd6 Nba2 Bb4 Qa1 Ba5 Ba3 Bb4 Qb2 Kf5 Kg7 f8N+ Nf7 Ne6+ Kh8 Nd8 Kg7 Nb7 Nh8 Bg8 Kf8 Bgc4 Kg7 Bcd3 Kg8 Ng4 e3 Kf6 Nb1 Qg3 Nbc3 Qe5 Rh7 Qf5 Rc7 Qe5 Rc6 Qe6+ Kf8 Bf1 e2 Ne3 e1Q Bfe2 Qc2 Nd8 Qcd1 Nf7 Qed2 Nh6 Qb2 Nhf5 Qdc2 Nh3 Qd1 Rg1 Qdc2 Rg4 Qd1 Re4 Qdc2 Qee7+ Kg8 Ng1 Nd1 Qed7 Qc4 Re7 Ndc3 Bc5 Qa4 Bb4 Qd8 Qc8 Qe8 Qcd7 Qb8 Qe6+
R1k5/2N1K2n/B1B2R1q/3q1pq1/r1QB4/1rpR2RN/QBbB4/1r2nRb1 b - - 0 1 illegal: No possible last move
q1rQ2RB/1Q1K4/2R1Q2n/1NrbNpQ1/1kn1p1q1/b3qbQ1/2B2B2/1B5B b - - 0 1 illegal: No proof kernel
1KB2bqR/2Nq2rp/3N1R2/1p2Qqr1/Rk1nQrbN/3nN1B1/5R2/2NR4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 f4 c6 g4 e6 a4 b3 d4+ Kb4 d6 c5 d7 c4 d5 b2 f6 c3 a5 c2 g6 Qe7 d8Q Bb7 a6 Kc5 a7 Qc7+ d6 Bc6 g7 Be4 g5 Bg6 f7 Na6 f5 Nb4 f6 Ne7 g8R Bf5 g6 Qb7 d7 Ned5 g7 Nb6 Bf4 c1R Qe7+ Kc6 Ne2 Be4 Nd2 b1Q Qa4 Bc2 Bh3 Qb3 Bg3 Qa6 Nc4 N6d5 Rd1 Bf5 Ne3 Rc4 Nc1 Nc2 d8N+ Kb6 Kd6 e5 Ra3 e4 Nb7 Nd4 Ra2 Rc7 Rf2 Nf4 Qc4 Rac8 a8R Qaa2 Ra4 Qbc2 Qd5 Rc4 Qe5 Nd3 Bg4 R8c5 Bh3 Bg6 Bc8 Bh5 Kd7 Qd2 Nd6 Bg4+ Q7e6 Rd5 Q6f5 Kc5 Kc7 Qb3 Kb8 Qb1 Nc2 e3 Qfe4 e2 Ne3 Be7 f8N e1Q f7 Qg1 Ng6 Bf8 Nh4 Qg2 Q5f4 Rg5 Qee5+ Qd5 Qfe4 Qba2 Rf6 Qf2 Rb4 Qf5 Ra4 Be7 Rd8 Bf8 g8R Rb4 Rgg6 Rg8 Rh6 Qd7 Rf2 R8g7 Rhf6 Qc4 Qe7 Q5f5 Q7e5+ Qd5 Re8 Be7 Rh8 Bf8 Ra1 Ra4 Ra3 Kb4 Ra1 Be7 f8N Qg8 Ne6 Bf8 Nc7 Ra2 Rff1 Rf2 Ra7 Rf3 Rf2 Rf4 Ra4+
k1bBQ2K/r1p3n1/n7/N1B4b/1BBprr1N/b2B2R1/Q3Rq2/QQ2q2Q b - - 0 1 illegal: No proof kernel
1B1BB1Q1/2n1nN1K/1RRppB2/1Rrr1r1k/3RQ3/BRN5/2b4r/1r4bq b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kd3 g5 Ke4 a5 h4 d6 c4 a4 b4 a3 f4 g4 f6 d3 c5 a2 f5 d2 b6 g3 c6 g2 b5 Be6 b7 Nh6 b6 Bc8 c7 Nc6 b8B Ra6 b7 Be6 c8R Bd7 Rh3 Qe8 Qg4 d1R Bb5 Ra8 Rb3 Ra3 Nh3 g1R Ng5+ Kg8 f7+ Kg7 Nc3 Rd3 Rab1 Ne5 Rc6 Ra6 Ba3 Ng8 h6+ Kf6 h7 a1R h5 Rd5 h6 Bg7 f8B Rg3 Nf7 Nd3 Rd1 Nb4 Rd4 Be6 Rb6 Qd8 Be8 Rb1 Kf4 Qc8 Qe2 Qc6 Qe4 Rh3 Kg4 Rf3 Kh5 Bc8 Rb5 e6 Rb6 Ne7 Rb5 Rg8 h8R Ra5 h7 Bd7 Rb6 Bh6 Rb5 Bd2 Rb6 Rf4 Kh6 Rg2 Rg8 Rgf2 Rg1 Rg2 Rc1 Na6 R6b5 Nc7 h8Q+ Rg7 Qg8 Rg2 Kh7 Be3 Bh6 Bg1 Bf8 Na6 Bc7 Re2 Bd8 Nc7 b8B Qb7 Rb6 Ba4 R3b5 Rd2 Rc2 Rdf2 Rcb2 Bc2 R2b3 Re2 Bh6 Rff2 Bhc1 Rf4 Bcb2 Rh2+ Nh6 Ra4 Qf3 Rd1 Rc4 R5d2 Nb1+ Rfd4 Qf4 Qe4 Rcc6 Rc4 Qfg4 Rc5 Q4g6+ Ke5 f6 Kf4 f7 Qh1 Qd3 Rdf2 f8R+ Nf5 Qe2 Rdd5 Bd4 Rf3 Nc3 Rb1 Rf7 Rff2 Rg7 Rf3 B4f6 Rff1 Rg3 Ne7+ Rd3 Rf3 Bg6 Kg3 Rd4 Rff5 Be8+ Kh3 Bg5 Kg3 Qe4 Kh3 Nf7 Kg3+ Bh6+ Kh3 Bf4 Kh4 Bg5+ Kh5 Bf6
2n1K1NR/2QnNp1q/1Q1B1B1p/b2b2q1/NN1R1N2/Br3B1b/2rk4/b6B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 c5 g4 a5 d4 c4 d6 c3 g6 a4 g5 f3 d7 c2 d5 a3 g7 a2 d6 f2 b6 Nf6 g8N Ra7 g6 Ra6 b7 Qc7 d8B Qc6 d7 Ra8 g7 Qc3+ Qd4+ Qc4 Ne7 Nh5 Kd6 Nc6 b8N Na7 g8N Nf6 e5 Ng4 e6 Ne3 Qb6+ Qb5 Nc6+ Kb3 Ne2 Nd1 Nf4 Rb8 Nc3 Bg7 Nb4 Qh5 Na4 Bb7 Be2 f1B Bf3 Bc3 Bc7 Qg5 d8B Bd5 Kd7 Ne3 Bd6 Ng4 Ke8 Bh3 Rd1 h6 Rd4 Qg6 Nbd3+ Bb4 Kf8 Qh5 Qa6 Rh7 Nf5 Qg5 e7 Ba3 Rb1 a1Q Nf6 Qg6 Qc8 Qa2 Qc7 Bb4 Bh1 Ne5 e8B Bc4 Bb5 Ba5 Bbc6 Rg7 Bcf3 Qa3 Ke7 Qc5 Kf8 Nd7+ Ke7 Ka2 b4 Qh7 b5 Rg2 Ba3 c1B b6 Bb2 b7 Kb3 Rg1 Kc2 Ke8 Rd2 Rg8 Nc8 Rh8 Ba1 Ng8 Rh2 Bf6 Qb5 Ng3 Qg5 Nf5 Re2+ Nfe7 Kd1 Bfg2 Rc2 Bd5 Kd2 Bdf3 Ra8 b8Q Bd5 Qba7 Rb8 Qac5 Rbb2 Q5b6 Rb3 Nb4+
1n1nB3/2p1rNbq/2BpQ1BR/NQB1b3/4N2k/p1N1B2b/3N2r1/3nKR2 b - - 0 1 illegal: No proof kernel
1N1B1B1k/4Qb2/1bR1bqRK/1Bp1pB2/4r3/1N1p1n2/R5rR/2BQnqR1 b - - 0 1 illegal: No proof kernel
5K2/1Nr5/3QB1bk/BpRBR1q1/2pnN2N/2bp1N1q/2bBQn2/3r1NB1 b - - 0 1 illegal: No proof kernel
B2rNr1B/p3kqRB/3B1p1q/5nR1/2b2RQ1/1bb1p1N1/2Q1n1R1/2RB1K2 b - - 0 1 illegal: No proof kernel
3BnR2/Bb2p1Rb/1BR2pR1/4b2N/1K2k1qn/1RpQ1bQB/3r4/2N3Br b - - 0 1 illegal: No proof kernel
2BQ1B2/2R2B1p/1bK1BR2/rnRn1bB1/Rp4q1/pbQ1p3/kR3rN1/6N1 b - - 0 1 illegal: No proof kernel
2RQ1B1N/1pQ2p2/b2RNp1B/3B2r1/1b1nRrRq/1R2nkpp/B7/K1B5 b - - 0 1 illegal: No proof kernel
3KB2Q/N2B1Rq1/4R3/5QN1/r2b2R1/1Bk2Bq1/pn1Q2Rb/Bbnr4 b - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 a5 axb5 g5 h4 gxh4 c4 c5 bxc5 Qb6 cxd5 Qa6 bxa6 Kd7 Ra2 Kd8 Ra1 Ke8 Ke2 Kf7 Kf3 Kf6 Kf4 h5 g4 e6 d4 h3 g5+ Kg7 Ke5 h4 f4 a4 f6+ Kf7 g6+ Ke8 f5 Kd7 d6 Kc6 d5+ Kd7 c6+ Kd8 c7+ Kd7 g7 h2 a7 h3 f7 a3 f6 a2 Qd2 Be7 f8Q Na6 f7 Nf6 g8B Ne4 Na3 Ng3 Bb2 Nc5 Nb5 Ne2 Nf3 Na4 Ng5 Nc1 Rg1 h1Q Rg2 h2 Rb1 Rh6 Ba1 Qg1 Rb4 h1Q Rbg4 Qh4 Be2 Nb2 Bf3 Rb8 a8B Qg3+ Qf4 Rh3 Na7 Rh4 Qh6 Bb7 f8R Rd8 Qh8 Ba6 Bb7 Bd3 Rf7 Bb1 Ba6 Qb6 Bc4 Qc6 Bb3 Qb7 Rf5 Bf8 Kf6 e5 Bf7 e4 Re5 e3 Re6 e2 Qf5 e1B Bg6 Rh1 Kf7 Ra8 c8B+ Kd8+ d7 Kc7 Ke8 Bc3 d8R Rd1 d6+ Kb6 d7+ Bd6 Bh5 Be5 Bf7 Ka5 Bg6 Bb8 Ke7 Bc7 Rf8 Bb6 Bf7 Bd4 Be8 Kb4 Kd8 Kc3 Rf7 Bb8 Ke7 Bc7 d8Q Bce5+ Bcd7 Bf4 Nc8 Ra4 Na7 Qc7 Qa8 Qe5 Kd8 Qg7 Qh6 Bfe3 Qad5 Bg1 Qh8 Bh2 Qd6 Ra5 Qdf4 Ra4 Qd2+
2n3q1/q5Q1/4BRr1/R3RbN1/1k1pBn1b/3nN3/2rQ1B1R/2R1QKQ1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 c4 e5 h4 Ke7 f4 Kd6 a6 Kc5 h6 d5 a7 g5 b6 g4 b7 e4 h7 e3 h5 g3 f6 e2 h6 g2 f7 d3 f5 d4 f6 Bf5 Rh5 Qa5+ Nc3 Qd8 Be3 Qd5 Bf2 Be4 Nf3 g1Q Rc1 Kb4 c5 Nd7 b8Q+ Ka3 c6 Qg3 c7 Qe6 c8B Ne5 Ng5 Qgh3 Qb1 Nd7 Nd5 Ne7 Bg2 Nc5 Ne3 Bf5 Be4 Rg8 h8R Rg6 h7 Qc4 Qa1+ Kb4 Be6 Rc8 a8R Rc7 Ra7 Nc8 Ra5 Be7 f8Q Qg2 f7 Qa6 Qg8 Qa7 f8R Qg3 Nh3 Bh4 Rf6 Qg4 Ng5 Qg1+ Kd2 e1N Qg7 Ng2 Re8 Bg4 h8Q Nf4 Qhg8 Bf5 Rh7 Qg3 Ke1 d2+ Kf1 Ncd3 Qe1 Rc3 Rh5 d1Q Re7 Qgg4 Rh7 Bg3 Rh2 Qd2 Qb1+ Rb3 Qc2 Rc3 Qcd1 Rc4 Rd7 Rc3 Rdd5 Rc2 Re5 Bh4 Q7h8 Nb2 Nf7 Rg7 Qh6 Nbd3 Qg5 Qh5 Qg1 Qh8 Ng5 Rg6 Qg7 Qg8 Qdxd2+
1B1B4/1R1Q2bp/nNb1q3/3p1k2/1r2QB1b/K2NpbR1/2B4Q/1R1B2R1 b - - 0 1 legal: proof: b4 a5 h4 b5 e4 c5 a4 f5 axb5 g5 hxg5 f4 d4 cxd4 b6 f3 b5 Ra7 b7 Ra6 Nxf3 Qc7 Ng1 Rf6 b6 Rf5 exf5 Na6 Bxa6 Qd8 Bd3 Nf6 Bf1 Ng8 Kd2 Kf7 b8Q e5 c4 e4 Kc2 a4 Kb2 d3 g4 d6 f4 d2 b7 Qe8 c5 Qe6 g6+ Kf6 g5+ Ke7 g7 Qd7 f6+ Ke6 f7 Be7 f8Q Nf6 g8R Qc6 g6 Ng4 g7 Nf6 f5+ Ke5 Nc3 Qa6 c6 Qd3 c7 Be6 c8R Qd4 Nf3+ Kf4 Rb1 Ba2 Bd3 Ng4 f6 Qg1 f7 Qf2 Rg1 Qh4 Ka3 Qh6 Qe8 Nf6 f8B Nd5 Rc7 Kf5 Bc2 Nb4 Ne5 Qe6 Nd3 Na6 Nd5 Bh4 Nb6 Bd5 Be7 Bc6 Qe1 d1B Bf4 Bh5 Bd8 Bf3 Qd2 e3 Qa8 Bh1 b8B Bhd5 Qd7 Bf3 Re8 Rf8 g8B Rf6 Rb7 d5 Bf7 Rg6 Qh2 Rg7 Bh5 Rg4 Bh6 Rb4 Bhf4 Rc4 Reg8 Rb4 Ka2 a3 R8g3 Ra4 Kb3 a2 Kb2 Re4 Ka3 a1B Qa7 Rb4 Qa8 Be4 Bhd1 Bf3 Qa7 Bg7 Qe7 Nc5 Qa4 Na6 Qd7 Rb5 Qc4 Rb4 Qe4+
1q1bB3/5B2/3p1Qb1/Q1R2N1p/kN1NQ2N/1Rp5/1b4Rb/1rq1NKQ1 b - - 0 1 illegal: No possible last move
qk3Qq1/2NQQ1p1/4pB2/B1R1q1RK/Q4q1Q/Nq2B3/1p1b4/3R1B1n b - - 0 1 legal: proof: g4 c5 d4 a5 c4 h5 gxh5 b5 b3 a4 Bf4 b4 Be3 Ra5 Bc1 Rb5 cxb5 axb3 Bd2 c4 Bf4 Qc7 Bc1 Qd8 e4 d5 Be3 Rh6 Qf3 Rc6 Bc1 Rc5 dxc5 d4 Qd1 Be6 f4 Bd5 exd5 e6 f5 Nc6 f6 Nce7 fxe7 Kd7 Kf2 Kc8 Kf3 f5 e8Q c3 h4 c2 a4 f4 Kg4 b2 h6 f3 b6 d3 d6 f2 h5 d2 d7+ Kb7 h7 b3 h8Q Qc7 d8B Qf7 h6 Qd7 c6+ Ka8 h7 Qb7 a5 Qb8 b7+ Ka7 c7 Qa8 c8R Be7 b8B+ Kb7 Nh3 Qa7 a6+ Ka8 Nf4 Qe3 a7 Nh6+ Kh5 Bg5 Rc5 Qe5 Ba5 Nf5 Na3 b1Q Rg1 b2 Nd5 Qa2 Qhf8 Bh6 h8Q Ng3+ Kg4 Bf4 Qh4 Nh1 Qee7 Bg5 Kh5 Qb3 Qdf3 d1Q Be3 c1Q Qc8 Qcc4 Qcd7 Qce4 Nc7+ Kb7 Rg3 Qdd5 Qff8 Q4f4 Rd1 Qde4 Be2 f1Q Rg4 Bh6+ Rg5 Qh7 Bd3 Qg2 Bf1 Qgd5 Bc3 Qg8 a8Q+ Kb6 Qa5+ Kb7 Qaa4 Qc6 Ba7 Qa6 Bb6 Qa8 Bba5 Ka7 Ne8+ Kb8 Nc7+ Kb7 Qc4 Qef5 Bc1 Qf2 Bf6 Qe5 Rf5 Be3 Bcd2 Qff4 Rg5 Ka7 Qca4 Kb7 Bdc3 Bd2 Bd4 Ka7 Be3 Kb7 Qff7 Kb8 Qff8+
5nn1/Qb3RB1/B3Q3/1brQ1nR1/n3B1kq/3r1N2/1Qb1N1B1/K1R3Bn b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 d4 Kd7 Kd2 c5 Kc3 h5 b4 e5 Kb2 a5 f6 a4 g7 e4 g6 f3 d6 Ke6 d7 Kf5 f7 e3 f8B h4 b6 f2 b5 h3 b7 c4 d5 h2 b6 e2 d6 e1N Bg2 f1B Nd2 Qg5 d8R Ra5 d7 Nc2 Qe1 Ne3 Ndf3 Qh4 Ne2 Rc5 Rb1 a3+ Ka1 a2 Rb5 Nh6 g8B c3 g7 c2 Bd5 Kg4 g8B Nef5 Be3 c1N Be4 Nd3 Bc4 Ng8 Bg7 Nf2 Rf8 Rh6 d8Q Nd7 b8Q Rd6 b7 Rd3 Rg1 h1B Rf7 Nf8 Qa7 Bd7 Ra5 Bb5 b8Q Ba4 Ba6 Bc2 Kb2 a1N Qd5 Nb3 Qh2 Nbd4 Ka1 Nb5 Qhe5 Nc3 Qd2 Bd1 Qee6 Na4 Qb2 Bc2 Nf4 Be2 Rc1 Rb3 Bed4 Bb5 Ne2 Rd3 Bf1 Bg2 Be3 Bh3 Bg2 Nh1 Bg1 Nf2 Bh1 Bf1 Bg2 Nh1 Qc4 Bc6 Qcd5 Bb7 Rb5 Rd1 Nf4 Rc7 Rc5 Bb5 Qde5 Rd3 Ne2 Rc8 Q5d6 Rc6 Re5 Rc5 Qed5 Nfe7 Rh5 Nf5 Qg6+ Qg5 Qge6 Qh4 Rg5+
1R2R3/5qR1/n3bq2/b4r1Q/Q1N2BK1/Rn1B1Q1N/rN1R1bk1/3Q1q1b b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kf7 Kf3 Kf6 d4 e5 h4 g5 h6 c5 b6 c4 d6 c3 b7 e4+ Kg4 c2 f4 e3 d5 b3 h7 b2 d7 e2 d6 e1B h5 Bd2 h6 Ne7 Bd3 Nbc6 b8R Na7 Na3 b1B Nc4 Nb5 Nh3 Nc6 Nb2 Nc7 Ra3 Na6 Rg1 Ba5 Qf3 Qe8 d8R Nd4 d7 Nb3 Rg3 Rg8 h8N Bc5 h7 Rf8 Ng6 Qf7 Ne5 Bf2 Nec4 Bb7 Re8 Ba2 Qd1 Bh1 d8R Ra7 Bd2 c1Q Rg1 Qc3 h8Q+ Qg7 Qh5 Qf7 Re2 Qe5 Re8 Ra8 Bc1 Qee7 Rd2 Qd8 Rg2 Qd4 Kf3 g4+ Ke2 Qe6+ Be4 Na1 Nd6 g3 Kf3 Nc5 Rc3 Bd8 Re2 Bg1 Be3 Bc4 Rd2 Ra2 Ra3 Nab3 Bd3 Ba5 Nc8 Kg7 Nb6 Qg6 f6+ Kf7 N6a4 Na6 Nb6 Qc3 Qh4 Be6 f5 Qc7 Qa4 Qe7 Bh6 Qg8 Kf4 Bd4 Rg1 g2 N6c4 Qh8 Kg3 Bf2+ Kf3 Kg8 f7+ Kh7 Be3 Qc3 Kf4 Kh6 f6 Qd4+ Kf3+ Kh5 Bh6 Kh4 Be3 Rg8 f8Q Rg5 f7 Qc7 Qc5 Qh8 Ke2 Kg3 f8Q Qhe5 Qf5 Qf7 Qcc6 Kh2 Kf3 Qef6 Kf4 Rh5 Qcf3 Rg5 Rf1 g1Q Qh5 Qg2 Rg1 Qf1 Qhf3 Rh5 Rg7 Qc3 Kg4 Qcf6 Qfe2 Kg2 Bf4 Bd5 Qh7 Rf5 Qh5 Be6 Qf3#
Q2r1B1k/B1brn2B/7K/5N1R/1Q2R1rB/R4Rqn/1BbN3b/1q1r1N2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kf7 Kf3 c5 Kg4 g5 f4 Kg7 h4 e5 d4 b3 b6 b2 h6+ Kh7 Kh5 c4 d6 c3 d7 e4 b7 c2 d5 e3 f6 e2 d6 e1B f5 g4 f7 g3 f6 g2 Ne2 g1R Ng3 Ra3 Nd2 b1Q Bb2 c1R Qg4 Rc4 Bd3+ Re4 Ngf1 Qe8 d8N Na6 b8B Rb3 d7 Be7 Ne6 Bd6 d8B Bb4 Nd4 Qd7 f8R Bb7 f7 Bd6 Ba7 Ne7 Nf5 Nc7 Ra3 Beg3 Rh3 Bd5 Re8 Rb7 f8B Bh2 Rf3 Bb3 Kg5 Ncd5 h5 Qc7 Bc2 Kg8 h7+ Kf7 h6 Nf4 Bd3 Nh3+ Kh5 Ra4 Qb4 Bc2 Be4 Rhg8 h8Q Qb8 h7 Rd7 Bd3 Bc7 Kh6 R8g4 Be4 Ra5 Bd3 Rad5 Be4 Rd4 Qg8+ Kf6 h8R Rh1 Qd5 Rhg1 Qa8 Kf7 N1g3 Rd1 Ngf1 R4d5 Rh7+ Kg8 Bd3 Bb6 Be4 Qg3 Bd3 Bc7 Be4 Ng6 Bh4 Rd8 Bd3 R5d7 Re4 Ne7 Rg7+ Kh8 Rg5+ Rd4 Rh5 Rd7 Bc4 Rd8 Bg8 Rd7 Bh7 Rd8 Re5 R4d7 Re4+
n1r1R1rN/NR1Q1Qq1/Q4bBR/b2b4/4NK1B/3QRb1Q/1r6/b1k3q1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Kf2 Kd7 Kf3 Kd6 b4 Ke5 d4+ Kd6 f6 h5 g7 c5 g6 a5 f7 e5 b6 a4 b7 c4 b8R c3 b5 a3 b6 h4 b7 a2 Nh3 c2 Nc3 Qd7 Nf2 h3 Qd3 Ne7 g8Q h2 g7 Ra5 Qgh7 Rb5 g8Q Rb2 Qh3 Bg7 f8R Bf6 Qf7 Rg8 Re8 Qc7 Bd2 c1R Be1 Bg4+ Ke4 f3 Nb5+ Kd7 d6 Kc6 d5+ Kc5 d7 Nc8 d8Q Nb6 d6 Na8 Ke3 e4 Kf4 e3 Qdd7 e2 Na7 Be6 Rb1 Bd5 Re3 a1B Rbe8 Rc3 Qa6 Kb4 Ne4 Kb3 b8Q+ Kc2 Bh4 e1B Qbd8 f2 Be2 f1B Bh5 Bg2 Bg6 Qb7 Qdf5 Bd2 d7 Bf3 Qc8 Rc4 d8N Ba5 Qce6 Rc8 Qed7 Ra2 Rb6 Rb2 Rb1 h1Q Rbe6 Qc7+ Rd6 Ra2 Rb7 Qc3 Rdb6 Qg1 Rd6 Kc1 Rdb6 Bb3 Qdd3 Rf2 Q7d7 Qb2 Nf7 Bd5 Nh8 Qc3 Qfe6 Rb2 Qef7 Qc7+ Qd6 Qe7 Qdd7 Qf8 Rbe6 Qg7 Re5 Bfd8 Rh5 Bf6 Rh6
5bbQ/2R5/1br1RK2/1N2Q2N/3n1R2/3qbQN1/kQBnN2b/B3qN1q b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 d4+ Kb4 g7 c5 b6 e5 g6 c4 d6 e4 d5 e3 b7 f3 d7 e2 f6 e1B Kf5 h5 d6 f2 f7 a4 Ne2 a3 Nd2 Ne7+ Kf6 c3 g8N h4 g7 c2 Nh6 a2 g8N h3 Nf5 h2 Nfg3 Bh6 f8R Ka4 b4 Nbc6 b8Q Qe8 d8N Qd7 b5 Ne5 b6 Kb4 b7 N7c6 Nf7 Nc4 Bb2 Nd4 Rc1 a1B Bh3 f1Q+ Bf5 Qg1 Ndf1 Kb3 Bd3 Qh3 d7 Ba5 d8Q Nd2 Nd6 Bb6 Nb5 Ka2 Qe5 Be6 b8Q Rh7 Re8 Rc7 Re7 Bf7 Re6 Rc6 Bc3 Bb2 Qb7 Ba3 Ba1 Be3 Qf8 Bf4 Qh6 Qe3 Qh8 Bf8 Rg1 h1Q Rg2 Qe4 Rf2 Be3 Rf4 Bg1 Qbb8 Bh2 Qb7 N2f3 Qd2 Qhh7 Qe3 Nd2 Qf3 Qh3 Ne7 Qe3 Nef5 Bg8 Ng7 Qf2 N7h5 Qe1 Rd1 c1B Bc2 Nb1 Rd3 Be3 Rc3 Nd2 Qbg7 Rd6 Rc7 Rc6 Rd6 Qd7 Re6 Qd8+ Qe7 Qd7 Qb4 Qh7 Qc3 Qd3 Qb2#
NnQ1R1nq/NK1B1r1R/3N2Rq/1B1k1N2/Bq1b1r2/R1Nrn3/5n2/2Q5 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 Bd7 b3 Nc6 Ba3 Nd4 Bd6 Nc6 Bf4 gxf4 h3 Nb8 g5 Be6 Ra4 Bf7 Ra3 Bh5 Ra1 Bg4 hxg4 Qc8 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 h5 d4 e5 b4 c5 f7 a5 f6 f3 g6 h4 b6 a4 Kb5 a3 g5 e4 b7 h3 g7 h2 g6 e3 Qc1 e2 Nc3 e1Q Nge2 c4 Ng3 f2 Nf5+ Kd7 d6 Ke6 d5+ Ke5 d7 a2 d6 Qc7 d8R Rh4 d7 Nh6 g8B Rh5 g7 Ra3 Re8+ Be7 f8Q Rh3 d8N Ra4 f7 Qc8 Kb6 Rh4 b5 Na6 b8N Qc5+ Kb7 Qee3 b6 Ra3 Bh7 Qcd4 g8B Rf4 Bd3 f1N Nbc6+ Kf6 Be2 Bc5 Na7 Nb8 Bd1 Qh3 Ba4 Ne3 Bg6 Qg4 Bh5 Qg7 Bg4 Qh8 Rg1 h1N Be2 Be7 Rg6+ Ke5 Bd7 Rb3 Bd1 Ra3 B1a4 Nf2 Bh7 Qd6 Qg8 Rb3 f8N Qb4 Nfe6 Bc5 Bab5 Bd4 Nc7+ Qe7 Qf8 Ng8 Na8 Ra3 Na4 c3 Nf7+ Kd5 N7d6 Qh4 Re7 c2 Qc8 Qg4 Rf7 Rd3 Nc3+ Ke5 Rb1 a1R Rb3 Qh4 Ra3 Qe7 Qb2 Rf1 Qc1 Qe6 Ba4 Qc4 Rfg7 Qb4 Bdb5 Nf6 Rd7 Ke6 Bg8+ Ke5 Be6 Ng8 Rf7 Ne4 Bed7 Nf2 Qd2 c1Q Rh7 Qd1 Qc1 Qh5 Kc7 Qh1 b7 Qh6 Nd1 Nc6 b8R Kd5 Kb7 Bf6 Qc7 Bd4 Re8 Nb8 Qc8 Rg1 Rge6 Rg7 Rg6 Rf7 Nc3+
1b2Nr2/Bkq2q2/1N2r3/3K1n1R/1Q2n2N/Q1rR4/1QBN1N1r/4RRnn b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Kf2 Kd7 Kf3 Kc8 Ke4 h5 d4 a5 b4 c5 g6 e5 g5 a4 d6 a3 g7 h4 b6 h3 g6 a2 b7+ Kd7 b5 c4 d5 c3 b6 f3 f6 h2 f7 c2 Be3 c1Q Nh3 f2 Qd4 Ra6 Bd3 f1N Nd2 Ra5 Nf2 Rh5 Qb4 Ne7 g8Q Rh3 g7 Ra7 Bc2 Na6 b8Q Qc7 b7 Ra8 Ba7 Nf5 Qh8 Ra3 g8N Rc3 Qh3 Bg7 Rb1 a1R f8R Qd1 Nh6 Qh5 Re1 Ra2 Qg3 Qf7 Qd3 Nd4 Nf5 Nf3 Nh4 Ne3 Rhf1 h1N Rh8 Rb2 Rh5 Nf5 Qh8 Rg8 b8N+ Kc8 Nd7 Ng1 Nb6+ Kb7 d7 Rf8 d8R Bh6 d6 Bf4 d7 Bh2 Re8 Bg3 Re6 Nc5+ Kd5 e4 Qf3 e3 d8N+ Ka6 Qhd4 e2 Nb7 Ne4 Nd6 Bf4 Rd1 e1R Ne8 Ra2 Qb2 Kb7 Qdb4 Re2 Ng4 Rh2 Nf2 Ra6 Rde1 Qc8 Re3 Bb8 Rd3 Qcc7 Q4a3 Ra4 Qg4 Rac4 Qf4 Rc6 Qg4 Qg6 Re5 Re6 Qf4 Qgf7 Qg4 Neg3 Ree1 Ne4 Qf4 Qcd7+ Qfd6 Qc7 Qdb4
R2n2Nk/2n1Rn2/3Q1N2/5r2/N2QB3/1rBq3b/qbBp4/N1BKRq1B b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 f4 Kf7 c4 g5 h4 Kg7 a6 e5 f6+ Kh7 f5 d5 h6 d3 h5 d4 f7 e4 f6 g4 a7 e3 b6 e2 b7 g3 c5 g2 c6 Qb6 c7 Na6 b8R Qb4+ Nc3 Ne7 Nf3 g1N Bg2 Qa3 Nd2 Qb4 Na4 Be6 c8B Qc4 Rb7 Qc7 Be4+ Nf5 Nb3 Bc5 f8Q Qf7 Qd6 Nh3 Re7 Rb8 a8B Rf8 Kd2 Ng5 Re1 Kg8 h7+ Kh8 Bcb7 Qg8 f7 Ng7 Ra2 Bc8 Na1 N7e6 Bbd5 Rb7 Bb3 Nd8 Bc2 Rb3 Bh1 Bf5 Bae4 Nc7 Ra3 Bh3 Ra2 Re8 f8N Ba3 Nd7 Bb2 Nf6 Rf8 Ra3 Qc4 Ra2 Ngf7 Ra3 Kg7 h8N Qa6 Ng6 Qa7 Nf4 Kh8 h6 Qa8 h7 Qa6 Rf1 Qa8 Ng8 Qa7 Ke1 d2+ Kf2 Qa6 Nd5 d3 Ndf6 e1Q+ Kf3 Qc4 Rg1 Qf1+ Ke3 Qf5 Re1 Qf1 Qg4 d1Q Qg1 Qdf3+ Kd2 Qg3 Kd1 d2 Qgd4 Qgd3 Nc3 Rb6 Ra8 Qa2 Na4 Ne5 Nd7 Rf5 Ndf6 Nef7 Qf4 Kg7 Qfd6 Rb3 h8B+ Kf8 Qa7 Qg1 Ng4 Qg2 Be5 Qgf1 N4f6 Kg7 Bc3 Kh8 Qad4
N3K1B1/3nBrkB/1N1RB3/4Qr1b/Rb4b1/n1q2QRQ/1p2Q3/r1q3B1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Kf3 c5 Kf4 h5 Ke5 b3 d4 c4 g4 c3 f4 c2 f6 b2 b6 h4 d6 h3 b7 e6 d7 h2 d5 Ra2 f5 Na6 b8Q Nb4 d6 Ba6 Ne2 Nh6 g6+ Kg8 g7 Kf7 g5 Qc8 d8Q Be7 d7 Bf8 Na3 Kg8 f7+ Kh7 Kf6 e5 Nc4 e4 Be3 c1Q Qe5 Qc5 Nd4 Qc7 Ne6 Qc5 Rg1 Ra3 Qc8 h1B d8R Qb5 Bd3 Qc6 Nb6 Bf3 Rg3 Bh5 Bg1 Qa8 Nc7 Nc2 Qg4 Qd5 Nca8 Bb4 f8B e3 Rd6 e2 Ke7 Qa2 f6+ Kg8 Qe3 e1R Qge2 Rf1 Qh3 Qc4 Qe5 Ng4 Bf5 Bb7 Be6+ Kh7 f7 Qc3 Ra2 Nf6 g8B+ Kg6 Ra1 Nd7 Ke8 Rh7 Be7 Bbf3 f8Q Bfg4 Qff4 Ra2 Qfe3 Rf5 Q3f3 Ra3 Ra2 Rhf7 Ra1 R5f6 Bh7+ Kg7 Ra2 Rb3 Ra4 Ra3 Bhf5 Ra1 g6 Kh6 g7 Na3 Bh7 Rf4 g8B R4f5 Qa5 Kg7 Qae5+
qbn2r1R/4N2p/4Qk1q/3B1Br1/1n2K3/N1bRR1B1/qQ2N1RR/n1N5 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kf3 c5 d4 e5 b4 a5 f6 a4 b6 c4 g6+ Ke8 b5 a3 g5 a2 g7 Kf7 b7 c3 g6+ Ke8 b6 c2 d6 Nc6 b8Q Nh6 g8R Nb4 b7 Ra5 d5 Ra6 f7+ Kd7 g7 Be7 f8N+ Ke8 d7+ Kf7 d6 Qa5 d8N+ Kf6 d7 Kg5 Qd5 Re6 Ne2 Rc6 Bh3 Rg6 Ke4 Kf6 Bf5 f3 Nde6 f2 d8R f1Q Nc5 Nf7 Nd3 Qf2 Bf4 c1Q Rh2 Bd6 Bg3 Rg5 Na3 Qa8 Ng6 Qfa7 Rb1 a1N Ne7 Qa5 Rge8 Rf8 g8B Qh1+ Rg2 Qh6 Ndc1 Bc7 Rb2 Nd6+ Kf3 Nc8 Ke4 Q5a6 Qb3 Qa4 Rd3 Bd6 Qd5 Qb3 Qc4 Qa2 Bd5 Bc7 Qa7 Bd6 b8R Bc7 Qb7 Bd6 Ke3 e4 Kd4 e3 Ke4 Na6 Qbb3 Nb4 Rbd2 Bf4 Qb2+ Be5 Rd1 Bc3 Rh1 Be5 Rhh2 Bc3 Ng1 e2 Qcb3 e1B Nge2 Rf7 Rh8 Rf8 Rb5 Be5 Rc5 Bd2 Rcc3 Bb8 Re3 Be1 Rcd3+ Bc3 Qc4 Bc7 Qc6+ Bd6 Qd7 Bb8 Qe6+
3B1nBK/Q1rR4/2b4Q/bq1B1r2/N2BRNbk/b1NN1pn1/b6N/R7 b - - 0 1 illegal: No possible last move
1RRq1NQ1/1q1BBb2/1kN1n1r1/3Q2Qb/1b2r2B/2N1b1Q1/BK4p1/2B2n2 b - - 0 1 legal: proof: h4 f5 g4 d5 e4 g5 exd5 b5 Ke2 Nf6 a3 Nh5 a4 Qd7 axb5 Nf4+ Ke3 Ng2+ Ke2 Qd8 gxf5 g4 c3 Qd6 c4 Qh6 c5 Qg5 c6 Nxc6 hxg5 Nb8 Kd3 Kd8 Kc2 h5 d4 a5 b4 e5 f4 c5 d6 h4 f6 a4 g6 c4 f7 h3 d5 a3 f5 g3 d7 Kc7 d8Q+ Kb7 f6 e4 b6 a2 b5 h2 g7 c3 g8B e3 d6 e2 d7 e1Q Nf3 Qe6 Nd4 Qd5 Nc6 Bb4 f8B Ra4 f7 Na6 Be7 Rh6 f8N Rg6 Rg1 Qg5 Qd5 h1B Bd3 Nc5 Bf5 Ne6 Kb3 c2 Kb2 Rg7 Nc3 Ne3 Rb1 Bf3 Rh1 g2 Rh8 Bh5 Bh3 Qg6 Bh4 Qg4 Q8g5 Qf3 d8B Nf1 Be7 Rg6 Bf5 Bd7 Bg4 Be8 Bf5 Kc8 b7+ Kc7 Bf7 Kb6 Bg4 Ra7 b8Q+ Rb7 Bg8 Bf7 Qg3 Rb8 Bf5 Re8 Bh3 Qf4 Bg4 Qd6 Bf5 Qd8 Bg4 Kb7 b6 Ka6 b7 a1Q+ Kb3 Qa4+ Kb2 Qb5 b8Q Qb7 Bf5 Kb6 Qc8 Nc7 Bd7 Ne6 Ra1 Rg7 Ra8 Rg6 Rb8 Nc5 Bd6 Re4 Be7 Ne6 Qe1 Nf4 Qde5 Qc7 Nh7 Be8 Ba2 Ne6 Qd5 Bf7 Qf8 Qc8 Qg7 Qc7 Rhc8 Qd8 Nf8 Re5 Qg8 Re4 Bf4 c1B+ Kc2 Be3 Kb2 Bec5 Bc1 Be3 Qeg3
K3n2q/nQ2Rq1B/1N1R3b/2k5/QbR3RB/5Q1p/Rr1N1BB1/qq5r b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 h5 b4 a5 f6 e5 g6 h4 g5 a4 g7 c4 f7 f3 g6 f2 b6 c3 b5 a3 b7 c2 b6 h3 Be3 c1B Ne2 a2 Bg2 f1Q Nf4 Ne7 g8B Nbc6 b8Q+ Qc7 g7 Bb2 b7 Rh4 Nd2 Rh8 Bf2 Nf5 Bh7 Ba3 g8R Bh6 f8Q+ Nfe7 Rg4 Qa6 Re1 Kd7 d6 Bb4 Nd5 Qa3 Qff3 Rc8 Nb6+ Ke6 d7 Kd6 d8B Nd5 Bdh4 Qc3 Re3 Ra3 Qa4 Rb3 Qba7 Qd7 b8R Nc7 d5 Qf7 Q7a6 Re8 Rd8+ Kc5 d6 Na7 d7 Qb2 Ra8 Re6 d8R Ne8 Rd7 Qc3 Rad8 Rb1 Re7 Qb2 Rd6 Rd1 Ndc4 Rh1 Rad1 a1Q Ra3+ Be3 Ra2 Qc3 Rd8 Rd6 Rdd7 Rd2 Rd6 Rb2 R1d3 Rh2 Nd2 Rh1 Bfg3 Bh6 Be1 Qf6 Beg3 Qb3 R3d4 Qh8 Bf2 Qbg8 Kf5 Qgg7 Ke6 e4 Kd7 Qf7 Kd8 Nc6+ Kc8 Na7+ Kb8 e3 Ka8 e2 Qab7 e1Q Bf5 Qg1 Bh7 Qgb1 Rc4+
2R1N1N1/4k3/1K1bn2B/np3b1Q/qB1R1NQQ/N1r3B1/4nn2/rN3Q1q b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 g4 h5 f4 g6 g5 Bg7 Be2 Bh6 fxg6 Bf8 Bg4 hxg4 f5 Qd7 Qb3 Qd6 Qd1 Qd8 Ke2 e5 Kd3 b5 a4 c5 h4 g3 g7 g2 g6 Qb6 a6 Rh5 a7 Qa6 f6 Rh7 h5 Bg4 d6 Kd8 f7 Nf6 g8Q Kd7 h6 Qa5 g7 Ne8 Qf1 Qb6 a5 Nc6 a6 Qa5 Ra4 Bf3 Ne2 g1N Rd4 Bh5 Nf4 Rd8 a8N Nb8 a7 Qa1 Nc7 Na6 a8N Nh3 Nb6+ Kc6 d7 Bd6 f8B Bf7 Nc4 Be6 Nca3 Rc8 d8Q Nb8 Qh4 Kd7 Qh5 Rh8 h7 c4+ Ke4 Bg4 Kd5 c3 Qe6+ Kd8 g8N e4 Nf6 Ng7 Nce8 c2 d3 Rg8 h8Q e3 Qh4 e2 Q8h5 e1Q Qef5 Be5 Bb4 Nc6 Kc5+ Bd6+ Kb6 Nf2 Qfg6 Be6 Qgg4 Na5 Be3 c1N Rh2 Nh3 Rc2 Bf5 Bed2 Ra8 Rc8+ Ke7 Be3 Rh8 Bf2 Rf8 Bg3 Rf7 Rdc4 Qd1 d4 Ne6 d5 Qa4 Re4 Nf2 Rd4 Kf8 Q5g5 Rc7 Q5h5 Be7 d6 Rc3 d7 Ne2 d8B Bd6 Ng8 Ra7 Bg5 Ra8 Ngf6 Ke7 Bh6 Ra7 Nd2 Qb1 Qg2 Qh1 Qf1 Rc1 Ndb1 Rac7 Nc3 Ra1 Ncb1 Rc3 Ng8+
q1B2b1r/1b2B2n/3N4/1Q3QR1/r1Nr2b1/QB2R2Q/R3R1bp/K3bR1k b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Nc6 Kf2 Nf6 Ke1 Na5 bxa5 Ng8 d4 Kd7 Kd2 Kd6 Kc2 f5 Kb2 h5 g4 c5 e4 f3 g6 h4 a6 f2 e5+ Kc7 d6+ Kb6 g5 h3 a7 f4 d7 f3 g7 h2 g6 c4 d5 Kc5 b6 Qe8 d8Q Qe7 b7 Qc7 b8Q Qc6 e6 Bb7 d6 Qb6+ Qb3 Kd5 d7 Ke4 e7 Qc5 e8R+ Qe7 Ra2 a3+ Ka1 c3 Qdc8 c2 d8R Rh7 Bg5 c1R Ba6 f1B Rdd2 f2 Nh3 Rc3 Re2+ Kf3 Nd2+ Kg2 Qf5 Nf6 g8B Rc4 g7 Rd4 Nc4 Qd8 R8e3 Rh8 Bh4 Nh7 Ng5 Qc8 Nf7 Qc6 Be7 Qf3 Rec2 Be2 Nfd6 f1B Qbc8 Qc6 Qbb5 Qe8 Ne5 Qc6 Bb3 Qe8 Nec4 Qd8 Nd2 Bg4 g8R Qe8 Rg5 Qc6 Rab2 a2 Qcd7 Ra4 Qde6 Rd8 a8Q Qc8 Qa7 Qa8 Qac5 Rd7 Qa3 Rd8 Ne8 Rdd4 Nd6 Be2 Rhb1 Bf1 N2c4+ Kg1 Rce2 Kh1 Bd1 Bfg2 Rbd2 Bbf3 Bc8 Bb7 Qh6 Ra7 Qh3 Ra4 Kb2 a1B+ Ka2 Bf1 Bb3 Bc3 Rbe1 Bb4 Ka1 Ba5 Rb1 Bb4 Ra2 Be1 Rbb2 Bfg2 Rf2 Bh6 Rbe2 Bf8 Rf1+
3K3n/2B1QRn1/1NQ2b1n/N1nBk3/2R1qN2/QQ1Rq3/1pbQ2N1/3n1r2 b - - 0 1 illegal: No possible last move
3R1k2/1q6/B1r5/1n1Q3N/K1NQpqQq/1rqB1bb1/R1RB1qQ1/2B2Q2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 d4 c5 Kd2 a5 Kc2 e5 Kb3 h5 d6 e4 d5 f3 b6 c4+ Ka4 c3 b4 h4 d7+ Ke7 f6+ Kd6 b5 f2 b7 c2 b8B+ Qc7 d8R+ Bd7 f7 Ke7 d6+ Ke6 g7 h3 g6 h2 Qd4 Bc8 b6 Rh6 b7 Nf6 g8B Ne8 d7 Ke7 g7 Nd6 Bd3 f1Q Nh3 Nb5 Nd2 Rc6 Ra2 Qf2 Nc4 Raa6 Ba7 Rab6 b8Q Qb7 Re1 h1Q Qg3 Qhh2 Nf4 Qh4 Bd2 c1Q Nh5 Qc3 Qg4 Qf4 Qd5 Qd4 Rc1 Qdf2 Kb3 a4+ Kb4 a3 Ka4 Nc7 Rcc2 Rb3 Bae3 Nb5 Bc1 Q2g3 Bed2 Qgf2 Rab2 a2 Qd4 a1Q+ Ra2 Qf5 Qg2 Ke6 Qg4 Bd6 Qg2 Bb8 f8Q+ Qf7 Be3 Bg3 Bed2 Kf5 Qd5+ Kg6 Qd4 Q7f6 Bd5 Qc3 g8Q+ Qg7 Qe6+ Qgf6 Qg4+ Qfg5 Qff3 Kh6 Qd1 Qgf4 Qdf1 Kh7 Rg8 Kh6 d8Q Bf5 Be6 Bg6 Q8d5 Bf5 Q4f3 Bg4 Rd8 Kh7 Q3d1 Bf3 Bc8 Kg6 Qg5+ Kf7 Qg4 Qb6 Ba6 Qb7 Qde2 Ke7 Qee3 Kf7 Qd5+ Ke7 Rd6 Ke8 Qed4 Kf8 Rd8+
4B2q/1RqB4/NqQ1n1rn/1Rb1R1RN/4rNk1/5Rp1/1K1QN3/r3Q2q b - - 0 1 legal: proof: g4 d5 f4 e5 fxe5 b5 c4 f5 cxd5 f4 a4 h6 axb5 Qd6 b3 Qd7 Ba3 Qd8 Be7 Be6 Bg5 Bf5 gxf5 hxg5 h4 Kf7 e4 a5 d4 c5 Kd2 a4 Kc3 a3 f6 Kg6 d6 g4 f7 Kh5 b6 g5 e6 c4 b7 f3 b4 a2 e5 g3 d5 g4 e7 f2 e8B g2 e6 Ra4 d7 Ne7 d6 Bh6 f8R+ Ng6 b5 Qc7 d8Q Qb6 e7 Nd7 b8N Rh7 Nh3 g1Q Rf5+ Bg5 Qc7 Rg7 Kb2 Qe3 b6 Qh2 b7 Ra7 Qc6 Qe1 Na6 Nb6 b8R Qg1 d7 Na8 d8Q Qe5+ Nc3 Nc7 Rb5 Ne6 Qe1 g3 Rb1 a1R Qdd2 Kg4 h5 Be3 h6 Nh4 h7 Rg6 h8N Bc5 Nf4 Ra4 Bd3 f1Q Nh5 Qfg2 Rh2 Q2h1 Rhf2 Ra8 R5f3 Nf5 Bf1 Qc7 Ne2 Nh6 Rf5 Qgh2 R2f3 Qb6 Bd7 Ra1 e8R Rd8 Re7 Qh3 Be8 Rd4 Bg2 Re4 Bf1 Rg8 Ng6 Qh4 Ngf4 Rg6 Rb7 Qf6+ Re5 Qg7 Rf7 Qh8 Rf5 c3+ Kc1 c2 Bh3+ Kh4 Kb2 c1Q+ Kb3 Qc7 Rb7 Qd1+ Kc3 Qa4 R1b5 Qaa5+ Kb2 Qab6 Rf8 Ng5 Bhd7 Ne6 Rf5 Kg4 Rg5+
rb2R2B/1R1BNQ1K/B3Nk2/4b3/p1B2Nn1/5bQ1/3n3N/2qBQnqb b - - 0 1 illegal: No possible last move
BQB1Qn1r/2pB1n1R/Q1bk4/5nR1/b2R1q2/1q4B1/1Q1b1nBK/1N2N3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Ra5 bxa5 Bg4 Ra2 Bf5 Ra1 Bc8 Kf2 Kd7 d4 f5 e4 h5 g4 h4 Kg2 f3+ Kh2 f2 b6 f4 a6 a3 a7 h3 a8B a2 b7 f3 d6 Qe7 g6 Nf6 e5 Rh6 g5 Rh5 e6+ Kc6 d7 Rh7 d8R Ne8 g7 Na6 g8B Nb4 g6 Bh6 g7 Qf7 e7 Rh8 Qd2 Qb3 Bg2 f1Q Qb2 Nd3 Be6 Bd2 g8B Nd6 e8Q+ Bd7 d5+ Kc5 b8Q f2 Qc8 Nf7 d6 Ba4 d7 Kd6 Nf3 Nde5 Bf5 Ng6 Ne1 Nf8 Qa6+ Bc6 Bg4 Qfc4 Bh7 f1B Bhf5 Qe4 Be6 Bb5 Bef5 Ba4 Rg1 Bg5 Bf4+ Qe5 Bg3 Bd2 Rb8 Qf4 d8Q+ Kc5 Bd7 Kd6 Kh1 h2 Rb4 Qd1 Qb8 Qc2 Bd5 Qb3 Kg2 h1N Rd4 Nf2 Rh1 Ba5 Rh7 Bd2 Kh2 Qc4 Nc3 Qb3 Rb1 a1N Bg2+ Qd5 Bc8 Nc2 Bgd7 Ne3 Rd1 Nf5 Nb1 Qe5 Rg4 Qf4 Rg5 Qb3 Bd5 Ba5 Rd4 Bd2 Bg2+
1Rbn1Nn1/3QR3/Np1bB1Nr/2k4b/nN1N1n2/n3Q3/1BB4K/r1R3B1 b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra4 f4 Qd6 fxg5 Kd8 h4 Ra8 h5 Nf6 g6 Qf4 g5 Ng8 h6 Ke8 Bg2 Qd4 Bf1 Qg7 hxg7 Ra4 Ke2 Ra3 Ke1 Ra8 Kf2 Kd7 Kg3 Kd6 a4 e5 d4 c5 f6 h5 a5 h4+ Kh2 e4 f7 b3 a6 e3 a7 e2 Nf3 e1N Nc3 b2 Bd3 b1N Qe2 c4 Bb2 Be7 f8N Bf5 Na2 c3 Nb4 Nf6 g8B c2 g7 c1N g6 Nh7 Bc2 Ned3 Re1 Kc7 d6+ Kb6 d5 Nd2 d7 Nb1 d6 Nc5 Nd4 N1d3 Bgb3 Nf6 g8N Bg4 g7 Nf4 Qe5 Rh6 Qe4 Bd8 Ne7 Nc6 Neg6 Bc7 Qf3 Bh3 Re6 Bg4 Qe3 Bh5 Re5 Na4 Re8 Kc5 Be6 b6 d8B Nac3 d7 Rb8 a8N Bd6 g8R Rb7 Nc7 Ra7 Rg7 Ng8 Rf7 Ra2 Rh7 Na3 Rc1 Na4 Qe1 Ra1 Bg5 Ng2+ Qg3 Ne5 d8Q Nf7 Be3 Nf4 Kg1 Be7 Qd7 Bd6 Rb8 Nd8 Qe8 Ra2 Re7 Ra1 Bc8 h3 Kh1 h2 Be6 Nc6 Bg1 Nd8 Qb3 Ne2 Kg2 h1B+ Kh3 Nf4+ Kh2 Bb7 Qd7 Ba6 Qe3 Bc8 Nca6+
B7/1bR3rQ/QR1bRr2/6B1/R3nrNN/pbb3N1/3QnQQK/k2n4 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ba6 g5 Bc8 h5 Qd6 Ne2 Ng8 Ng1 Qg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 Kf2 Kd7 Kg2 Kd6 b4 Ke5 d4+ Ke4 g7 e5 d6 a5 g6 c5 d5 h5 b6 c4 f6 h4 b5 c3 b7 a4 d7 h3+ Kh2 f3 d8Q c2 b6 f2 d6 Be6 d7 Bd5 f7 Bc5 f8Q Rh6 Qh5 Kd4 Qdf6 Ne7 g8Q Nf5 d8Q Nd7 b8R Ra7 b7 Ne3 g7 Nd1 Nc3 Bd6 Rc8 Bb3 b8R Nc5 Rc7 Ne4 Bg2 f1R Rb6 Rf4 Nf3+ Kd3 Be3 c1N Nh4 Kc2 Ne2+ Kb2 Ng3 Ne2 Re1 Rb7 Qfe6 Rhf6 Qhh7 Ra7 Qc4 Rb7 Qa6 a3 Rac1 Ra7 R1c4 Ka1 Ra4 Rb7 Qd5 Ra7 g8N Rb7 Kh1 h2 Nh6 Ra7 Bf3 Rb7 Kg2 h1B+ Kh2 Bg2 Ng4 Bh1 Rc5 Rg7 Rc7 Nf2 Qde8 Nc1 Qfe7 e4 Bd2 e3 Qee5+ Rd4 Qef5 e2 Bg5 Bg2 Qc2 Rdf4 Qe3 Bh1 Qda5 Bg2 Ba8 Bb7 Rh1 e1B Qd5 Rc4 Qg2 Bc3 Re1 Rb4 Qef3 Rbf4 Re6 Ne4 Qcd2 Ne2 Qff2
r2k3K/n2n1BBn/4B2b/Q1Q1B1r1/1RbbQQp1/2N5/3N2R1/3NrBb1 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Qe7 gxf5 g4 h4 Qg5 hxg5 exf4 Bg2 a5 Kf2 h5 e4 c5 d4 h4 b4 h3 d6 f3 Kg3 c4 Kf4 h2 Ke5 f2 b6 f1R d5 c3 d7+ Ke7 d8N c2 b5 a4 f6+ Kd7 g6 a3 d6 a2 g7 Rf3 f7 Rf2 b7 Na6 b8B Rh6 b6 Rh7 b7 Rh6 Qe2 Ne7 g8B Rg6 Bh6 c1B Ne6 Rf3 Nh3 Rd3 Nef4 Bd2 Bf1 Rf6 Rg1 h1N Rg2 Rb3 Nf2 Nf5 Nd5 Be3 Nd2 Bb6 Nc3 Bg7 f8Q Ne7 Rb1 Ng3 Nfd1 Nc5 Qe3 Kc6 d7 Rb5 d8Q Be6 Rb4 Nh5 Qf3 Ba7 Qa5 Kd7 Bd6 Bb6 b8Q Bc4 Bc7 Ba7 Qb7 Bb6 Qf4 Nc8 Qd5+ Rd6+ Kf5 Ba7 e5 Nf6 Kg6 Nh7+ Kf7 Bb6 Bb8 Na7 Qe7+ Kc8 e6 Rd8 Qed6 Bf8 e7 Nd7 e8B Bg1 Bc7 Rc5 Q5e6 Rg5 Qdc5 Bg7 Qed5 B7d4 Bf8 Bg7 Qe6 Bh6 Qed5 Nb6 Bg7 Rd6 Bb8+ Kd8 Bd7 Re6 Qb7 Re3+ Be6 Re2 Bbe5 Re3 Qbe4 a1B Nb5 Bd4 Nbc3 Nf6 Kf8 Re1 Bgf7 Nh7+ Kg8 Bd5 Qa2 Nd7 Kh8 Bc4 Qaa5+
NQ1br3/k1B2B2/5Qqp/2N1N1B1/1b1q2NK/3B2Nb/3b2rQ/3RqRb1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra3 g5 Ra2 f4 Ra1 Nh6 h3 Nf5 gxf5 Nd7 h4 g4 Qc2 Nc5 Qa4 Ne4 Qd1 Ng5 hxg5 Ke7 Bg2 Kd7 Bf1 Ke8 Kf2 Kd7 e4 a5 d4 c5 b4 Kc7 g6 Kb6 d6 c4 e5 a4 e6 a3 e7 c3 e8B c2 g7 h6 g8N a2 d7 Ka7 f6 Be7 d5 Rb8 d6 Rb7 b6+ Kb8 b5 Rc7 f7 Rc3 f8N Bf6 b7 Bg7 Qd4 Rb3 Ne2 Qh4+ Ng3 Re3 d8B Rc3 d7 Rd3 Nd2 Bf6 Ne4 Rd2+ Be2 Qg5 Bf7 Qg6 Nc5 Ka7 Bc7 Bd8 Nf6 Rg8 Nfe6 Re8 Rb1 a1B Rf1 Bc3 b8N Bb4 b6+ Ka8 b7+ Ka7 Ba3 c1B Qd6 Rb2 Rd1 Bcd2 Bd3 Ra2 Rf1 Rb2 Rbd1 Rc2 Bc1 Ra2 Kg1 f2+ Kh2 f3 Qe5 Be1 Bg5 Bed2 Nh1 g3+ Kh3 g2 Ng3 g1B Kh4 Rc2 Ng4 Rb2 Ba5 Rc2 Nc7 Ra2 Na8 Rb2 Rfe1 f1Q Bc7 Qf2 Rf1 Qd4 Qf6 f2 Qe5 Bf6 d8Q Be7 Qdd6 Bd8 Qef6 Bf5 Nbd7 Rc2 Rfe1 f1Q Ne5 Qe2 Rf1 Bc8 Qf4 Qe1 Qdf6 Ra2 Ne3 Bh3 N3g4 Bde3 Qf2 Rd2 Qh2 Rg2 Qc6 Bc1 Qf6 Bcd2 b8Q#
1KRn1R2/Bn3R1q/1q1QB3/B1q3RQ/n1b3B1/Nk2N1n1/3pN2q/5Bb1 b - - 0 1 legal: proof: g4 h5 a4 c5 e4 a5 h4 f5 gxf5 b5 axb5 g5 f4 g4 d4 cxd4 f6 Rh7 e5 Rg7 f5 Rg5 hxg5 Qc7 Ke2 Kd8 Kf2 Ra6 f7 Rf6 exf6 Qb6 Bd3 Kc7 Ke1 Kd6 Bf1 Qd8 Kf2 Kd5 Kg3 e5 c4+ Kc5 b6 Kb4 c5 d5 c6 e4 Kf4 e3 Ke5 g3 b7 e2 g6 e1Q+ Ne2 g2 g7 g1Q c7 d3 Na3 Ne7 g8B Be6 c8B Na6 b8N a4 Nd7 h4 Kd6 Qc3 Bd2 h3 Rc1 d4 b3 Qg7 Rg1 h2 Rg5 h1N Rc2 Qa5 Ne5 Ng3 Ng4 Bc4 Ne3 Qh7 Be1 Bg7 f8R d2 f7 d3 f6 Nc6 Bg4 Nc5 Rc1 Qa6 Kc7 Nd8 Kb8 Ncb7 Rc2 Qb6 Rc1 Ne6 Rc8 Qcd4 f8R Ned8 B8e6 Qdc5 f7 Bd4 Ng2 Bg1 Ne3 Qcb5 Rc3 Bd5 R3c7 Bc4 Nf4 Kc3 b4 Q5c5 b5 Qh2 Qf3 Kb3 Ne2 d1N Ba5 d2 Qh1 Qh7 Qh5 Nc3 Rd7 Qbc6 b6 Qh1 Nb1 a3 Re7 a2 Na3 a1Q Rec7 Nd6 b7 Qb2 Rfg8 Qh2 f8Q Ka2 Rf7 Na4 Qe7 Qbb6 Rgf8 Kb3 Qd7 Nde4 Qc7 Qcb4 Qd6 Nec5 Ka8 Q4b5 b8B Ncb7 Ba7 Q5c5 Kb8
B6K/2k5/NR3R2/1Bp2n1b/RQRN1Rb1/3B3N/pQr1n1qq/B3r1n1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Kf2 Kd7 Kf3 a5 Ke4 h5 Ke5 c5 b4 h4 d4 h3 f6 f3 g7 f2 g6 h2 b6 e6 b5 a4 d6 a3 b7 Rh3 b6 Qc7 f7 Rh6 f8R Ne7 Kf6 e5 g8B e4 Kg7 e3 d5 e2 Bh7 e1Q Qe2 Qd2 Rf6 Qd3 Nh3 Qb5 Bb2 Nec6 Kh8 Kd8 g7 Nd7 b8Q Ra4 g8B Nf8 b7 Qbb6 d7 Ra6 Nd2 Nd4 Nb3 Nf3 Nd4 Qbc6 Rc1 a2 Rc4 Ra4 Ba1 Ng1 Qb2 Ne6 Rf4 Rf6 Bhd3 Ng7 Bgh7 Ra3 Bhe4 Rc3 Bfe2 f1B B4f3 Ke7 d8R Bg4 Rf8 Kd7 d6 Re6 R8f6 Rc2 Ra4 Nf5 Bb5 Ne3 Bed3 Nf5 Bfe4 Bfe2 Bg2 Nf3 Rb1 h1N Qb4 Ng1 Rc1 Rd2 Rc4 Nhg3 Qg8 Bgf3 Rh4 Re8 b8N+ Kd8 d7 Bh5 Rg4 Qf3 Rb6 Qf2 Ba8 Qc6 Re4 Kc7 d8R Qh2 Rd6 Re7 Qg5 Beg4 Rf6 Rc2 Qc1 Re5 Rf4 Re1 Qcb1 N3e2 Q1b2 Qcg2 Na6+
5bk1/1R2q2p/2KBRR2/6q1/1B2nr2/rQN1BnBN/pR3QB1/1q2Q2b b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 g5 a4 d5 axb5 f5 exf5 d4 h4 gxh4 c3 Qc7 cxd4 Qd6 d5 Qd8 Ke2 Kf7 Kd3 e5 Ke4 a5 d4 a4 g4 a3 f4 a2 c6 h3 f6 h2 c7 Ra4 g5 Ra6 d6 Qe8 Kd5 e4 d7 e3 d8Q e2 f5 e1Q b6 Ra4 b7 Qc3 Bg2 Qee1 Be3 Qg3 Qe1 Qf4 Nh3 Qc1 Nc3 Qb1 Rf1 Nh6 g6+ Kg8 g7 Qb6 Rb1 h1Q Rb2 Nc6 b8B Bd7 c8R Qfh2 Rc7 Ra7 Rb7 Be8 Bg3 Qa6 Qb6 Ne5 Rf3 Nd7 Kc6 Qa3 d5 Be7 d6 Nc5+ d7 Ne4 Rff2 Bg6 d8R+ Bf8 Rd6 Nf7 Re6 Nfg5 Qd4 Qf1 Rf3 Qb4 Qdd2 Ra3 Qdf2 Qe7 Rf4 Kf7 Rf3 Qhg1 g8Q+ Ke8 Rf4 Qd3 Rf3 Qb1 Rf4 Nf3 f7+ Kd8 f6 Bh5 Qg7 Rg8 Qh6 Rg4 Qg5 Bg6 Qb5 Bh5 Rf5 Rf4 Qc4 Nh4 Qb3 Bf3 Bf1 Bh1 Bg2 Bg7 f8B Ke8 Bd4 Kf7 Be3 Kg8 f7+ Kh8 Rff6 Nf3 Qed2 Qgc1 Qde2 Qd2 Qee1 Qdd8 Rg6 Qg5 Bb4 Qde7 f8B Kg8 Rgf6 Qf7 Bfd6 Bf8 Qed1 Qe7 Qde1
2b3kr/2qBB1Bp/3b1n2/4rN2/Rq1QRB2/1pQ3b1/Q3KBN1/1Q1n1R2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 f4 Kf7 d4 e5 g4 c5 f6 e4 d6 e3 g6+ Ke8 f5 e2 g5 c4 d5 c3 f7+ Kd7 g7 c2 g6 Qe8 f6 Qe6 b6 Ra2 b7 Qe8 Qd4 Qe4 Nd2 Ra7 Bh3+ Kd8 d7 Qe5 Nb3 Qe6 Nf3 Qe7 Ra4 Qe5 Nh4 Bd6 f8B Qe3 f7 Bf4 Qc3 Bc7 Nd4 Bd6 Ng2 Ra5 Nf5 Bf4 Rf1 Be5 Bc5 Qh6 f8B Qh5 Bf4 Qg4 Bf2 Nc6 b8Q Nf6 g8R Nd4 g7 Bd6 Kd2 e1B+ Kd3 Nf3 Ke2 c1Q Qb5 Qh4 Qbd3 Rc5 Qb1 Ng5 Bg4 Nge4 Be7+ Kc7 d8B+ Kd7 Re8 b3 g8Q Ra5 Qa2 Rc5 Qg6 Ra5 Bdb6 Rc5 Bd4 Nf2 Bde5 Rb5 Bh3 Nd1 Bf2 Ba3 d6 Ke6 d7 Bd6 d8Q Rd5 Bh6 Qb4 Bg7 Rb5 Bf4 Re5+ B2e3 Bf2 Qb6 Bg3 Qbd4 Rb5 Bf2 Rd5 Qg4 Kf7 Qgf3 Rc5 Qfe4 Rd5 Qeb1 Qc2+ Qcd2 Qc7 Q2c3 Ra5 Bef8 Rc5 Re4 Kg8 Be7 Rd5 Nfh4 Ra5 Bd7 Re5 Nf5
1n2q1Qb/bRBrB2r/1R2Q3/1R2NB1k/p2B4/Q5p1/n2n4/B1N1K1Qn b - - 0 1 legal: proof: b4 a5 g4 b5 e4 d5 a4 h5 axb5 hxg4 c4 f5 cxd5 Bd7 exf5 Be6 b6 Bc8 b5 Ba6 bxa6 Rh4 Nf3 Rh7 Ng1 Rh8 f4 Kf7 h4 c5 d4 g5 f6 Kg6 d6 e5 f5+ Kh5 d7 a4 d5 e4 d6 c4 f7 c3 b7 c2 f6 e3 a7 e2 Nd2 g3 Bb2 c1B Ndf3 g4 Bh3 g2 Ne5 g3 Bd4 Bf4 Bf5 Rh7 Rb1 Qc8 d8Q B8h6 f8B Bc1 f7 Qc7 d7 Rg7 Rb5 Ba3 Qf6 Be3 d8B Qe7 Bc7 Nh6 Qe6 Qe8 Be7 Rh7 f8Q Ng4 Rb6 Nf2 Qfg8 Nd7 b8R Bb2 R8b7 Rd8 a8Q Nb8 Qa6 Rd7 Qad3 Ba1 Qa3 Bb2 Nd3 Ba1 Nf3 g1N Nc1 Bb2 Rh2 Nh1 Ne5 Ba1 Bc3 Bc5 Bd4 Bb2 Rb5 Ba7 Rf2 Ba1 Rf3 Bb2 Rfb3 Ba1 R5b6 Bb2 R3b5 Ba1 Kd2 Bb2 Qf1 e1N Kd1 Ngf3 Qg1 Nd3 Ke2 Nb4 Kf1 Nd2+ Ke2 Qg6 Ke1 Kh6 h5 Na2 Bf8+ Kg5 h6 Kh5 Be7 Rg7 h7 Qe8 h8B Rh7 Bg7 Bc3 Ned3 Ba5 Ba1 Bc3 Bd4 Bb2 Bf2 Be5 Bfd4 Bh8 Ne5
RK1Qn3/BNn1QqN1/2N2Q2/b2p4/2N3rb/B3NQpk/rr1B1R1r/8 b - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 f5 Rh7 g5 Rh8 Be2 Bb7 Bf3 Bd5 Bg4 hxg4 g6 Bf7 Bg5 Qc7 gxf7+ Kd8 Bh6 Kc8 Bf4 Qd8 Bc1 Kc7 Kf2 e5 Kg3 g5 h4 a5 b4 d5 c4 Kd7 c6+ Kd6 b6 a4 b5 a3 h5 e4 h6 Ke5 c7 e3 c8N a2 h7 e2 b7 e1R b6 Nd7 b8N Bh6 f8N Qe8 c5 Qd8 b7 Ra7 f7 Re3+ Nf3+ Ke4 c6 Ngf6 c7 Re1 Na3 Rg8 h8Q Bg7 Nd2+ Ke5 Rf1 Nh7 f6 Ra8 Nd6 Qe8 c8Q Re2 Qd8 Nc5 Rf2 Ne6 Nc2 Nc7 Ne6 Bh6 f8B Qf7 Qg7 Rh8 Ne3 Ra6 Ba3 Rb6 Qh1 Rb2 Qf3 Rg8 Qg6 Rh8 Ng7 Rg8 Rc1 a1R Rc4 Rh1 Ra4 Rh2 Ra8 Ra2 Ndf1 Reb2 Nd2 Qd7 f7 Nf6 Be7 Nfe8 f8Q Qf5 Qh7 Qf7 N2c4+ Kd4 Nh5 Bg7 Qh6 Bf6 Nc6+ Kd3 b8B Bc3 Rf1 Ba5 Nb7 Rg7 Qe6 Rg8 Qff6 Ke2 Bed6 Rg6 Qee7 Rg8 Rf5 Rg7 Bf4 Ke1 Ng2+ Kf1 Bd2+ Kg1 Ba7+ Kh1 Kf2 g3+ Kf3 g4+ Kf4 Rg8 Nge3 g2 Ke5 g1B Rf3 Bf2 Ng7 Bh4 Rf2 g3 Qf3+ Rg2 Qef6 Kh2 Qf8e7 Kh3 Qh6 Nf6 Kd6 Nfe8+ Kd7 Rh2 Kc8 Ne6 Qhf6 N6c7 Nh5 Rg6 Kb8 Rg4 Ng7
rB1N1b2/1Q2R3/3n3p/NN2R2B/KRr1Qk2/b2nn1RQ/p2n2qQ/7Q b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 a5 g6 e5 b6 h6 b7 e4 f6 c4+ Ka4 e3 b4 e2 b5 e1B f7 c3 g7 c2 g5 f3 g6 f2 b6 Nc6 b8Q+ Qc7 b7 Ra7 Nd2 Nd8 Rh5 Be7 f8Q Nc6 Ne2 Ne5 Qf3 Nd7 Rb1 Ra6 Nc3 Bh4 Re5 Ra7 Rb4 Nf8 Be2 f1N Qe4 Ne3 Nb3 Bd8 Bh5 Ne7 g8Q Nd7 g7 Nf6 Qf8 Bg3 g8R Ra8 Qdh1 Rh7 Qg7 N7f5 Qc8 Be7 b8Q Bf8 Qgg4 Rg7 Qgh3 Rg4 Qcb7 Be1 Bd2 c1N Re7 Rf4 Rg3 Nd3 Bc1 Bd2 Ba3 Bc1 Re5 Rg4 Nb5+ Kd7 Bb2 Nd6 Ba1 Ba3 Bc3 Ndc4 d6 Nd2 d5 Ne8 Bd4 Nb1 Ba7 Nd2 Qa6 Qc6 Qbb7+ Kd8 d7 Nd6 Bb8 Qc2 Qac6 Qa2 Qeg2 Rc4 Qgh2 Qc2 Rf5 Ke7 Re5+ Kf6 d8R Qa2 Rde8 Qb2 R5e7 Qc2 Bg4 Kg5 Bh5+ Kf4 Re5 N6e4 d6 Qb2 d7 Nd6 R5e7 Qg7 d8N Qg4 Qb1 Qf3 Qa1 Qg2 Qah1 Qf2 Reg7 Qg2 Re5 Bb2 Rd7 Bd4 Ka3 a4 Na5 Bb2+ Ka2 a3 Rde7 Nf3 Kb3 a2 Ka4 Ba3 Qd5 Nd2 Qe4+
1RqQ4/4Q1nr/5qp1/5r1b/3R1p1R/B2KQR2/R1B1NQn1/nB3rNk b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 h4 f5 g4 g6 gxf5 Ba6 h5 Bb7 h6 Bg7 hxg7 Bc8 e4 Ke7 Ke2 Kf6 b4 Ke5 d4+ Kf6 e5+ Kg5 b6 Kg4 b5 Kg3 f6 c5 f7 h5 f8Q a5 b7 h4 d6 h3 b6 a4 e6 a3 d5 h2 e7 a2 e8Q c4 d7 c3 d6 c2 Qd4 Rh7 Nc3 Qc7 d8R Bg4+ Kd3 Nf6 g8B Ra5 d7 Nh5 Bb3 Qc6 Qfe7 Rf5 Ba3 c1Q Bc2 Na6 b8R Nc7 b7 Nd5 Qee3+ Bf3 Q8e7 Qf6 Bg2 Ng7 Nce2+ Kg4 Bb1 Qc8 Ra8 Kh4 b8R Bh5 Be4 Kg4 Qf2 Ne3 Rb3 Ng2 Qde3 Rc5 Bc2 Rf5 Rf1 a1N Rb2 Qf8 Ra2 Qf6 Ra4 Nb3 Rd4 Na1 Nf3 Kh3 Rg8 Qcc6 Rb8 Qce6 d8Q Qc8 Rhg1 h1R Bb1 Nh4 Rg4 Ng2 Nfg1+ Kh2 Qe1 Qh4 Rf3 Qg5 Q1f2 Qf6 Nh3 Rf1 Nhg1 Qfc6 Kd2 Kh1 Bec2 Q6e6 Kd3 Qf6 Rh4+
8/1rB1KB2/qp5k/4QQ1q/RNrq2B1/5pNb/2Nb1BQ1/2b1NRnN b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 Ke7 b4 axb4 g4 Ke8 a4 h5 gxh5 b6 a5 Nc6 a6 Na5 Ra2 Nb7 axb7 Ke7 Ra1 Ke8 Kf2 c5 Kg3 f5 Kf4 Kf7 b8Q b3 e4 g6 h4 Kg7 d4 c4 e6 c3 Ke5 b2 h6+ Kh7 d6 c2 d7 f4 h5 f3 d5 g5 d6 g4 e7 g3 Ke6 g2 e8B Be7 e5 Bb7 Qd5 Nf6 Nh3 g1Q Be3 c1B Bf7 Qg2 Nf2 Re8 Ra4 Bc8 Na3 b1Q Nc2 Qg7 Bh3 Qg2 Rf1 Qb5 Nh1 Qf2 Bg4 Qg1 Bf2 Kh8 h7 Kg7 h8N Bb7 h6+ Kh7 Ng6 Qg2 Nf4 Qh3 Ng2 Qa6 Nge1 Qc7 d8N Bd2 d7 Qh2 Nc6 Bc8 N6b4 Ra7 Qba8 Qc3 Qac6 Bb7 d8B Ne4 Bc7 Ng3 Qa2 Qc5 Qcd5 Beg5+ Kd7 Qh4 e6 Rc8 e7 Qh5 e8N Qd4 Nd6 Ne2 Ne4 Ng1 Neg3 Bc6+ Ke6 Rb7 Qe5 Bge3 Ke7 Bd7 Qa5 Bc1 Qb5 Bed2 Qf5+ Kh8 h7 Kg7 Qb2 Kh6 Qa2 Qg6 h8Q+ Qh7 Bd6 Rc4 Qhe5 Qg6 Qb2 Qh5 Bc7 Qe3 Qg5+ Kh7 Nd4 Be8 Bc8 Bc3 Qa2 Qd2 Be3 Bd7 Qc2+ Qd3 Qg2 B3d2 Bf2 Bh3 Ndc2 Qd4 Qg4 Kh6 Qge4 Bf4 Bg4 Bfd2 Q4f5
R3nQ2/1qNp1rp1/NqNr1rB1/3RK2B/N1bR1Q2/8/3n2k1/R2R1q1B b - - 0 1 illegal: No possible last move
1R3QB1/KpqN2Q1/NN2RR2/k4bpq/b1Qb3Q/3n1r1N/1n6/1NB2q2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 g4 h5 gxh5 Rh6 a4 Rf6 a5 Rd6 a6 Rh6 a7 Rh8 Bc4 Na6 Bf1 Rb8 a8Q Nh6 Qxb8 Ng8 Ke2 Kd7 Ke3 e5 f4 c5 d4 g5 h4 b3 d6 Kc6 d7 Kb6 d5 e4 f6 b2 d6 c4 Kd4 e3 f5 e2 f7 e1Q h6 c3 h7 c2 f6 Qe6 h5 Qe2 h6 Nc5 Ra6+ Kb5 Nh3 Qc7 d8N Na4 d7 Nb6 Nc6 Ba3 f8N Na8 d8R Qg7 Nd7 Qe7 f7 Qf8 Nb6 Bg4 Nb4 Bd7 Re8 Bc6 Re6 Ne7 Qd6 Qb8 f8N Ng6 Nfd7 Nf4 Qf8 Nd3 Qd2 Qd8 Qdf4 Qc7 Rf6 Rg8 h8Q Qh5 h7 Rg6 Re6 Rf6 Qhg7 Rf7 h8Q Rf5 Be3 c1Q Qe4 Qcd1 Bc1 Rf3 Qhg8 Qe1 Qh4 Qe2 Bg2 Qf1 Rf6 Re3 Bd5 Rf3 Nc2 Bd6 Nb4 Bf4 Rh2 Bg3 Re2 Bf2+ Re3 Bg1 Ra7 Bf2 Na6 Ka5 Ba2 Bg1 Qc4 Ba4 Kd5 Bf2 Ree6 Be3 Nc3 b1B Bb3 Bc2 Nb1 Bd4 Ba2 Nb2 Bb3 Bf5 Ba2 Qd8 Kd6 Nc7 Ra8 Nd5 Rb8 Nb4 Bb3 Qe7+ Kc7 Bg6 Rc8 Be4 Kb8 N4d3 Ka7 Bf5 Rb8 Qc5 Ba2 Qc7 Re3 Bc5 Qcd4 Nd1 Bg8 N1b2 Qc4 Bd4 Ree6
2R2kr1/3pN2K/1RQ1Nqnb/2R2Np1/3rQ1Q1/r6B/5NB1/r2NnQ1r b - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h6 f5 Bb7 g5 Bd5 g6 Bf7 Bg5 hxg5 Bg2 Qc7 gxf7+ Kd8 Bf1 Qc8 Qd3 Kc7 Qd1 Qd8 Kf2 a5 Ke3 e5 Ke4 g6 c4 g4 b4 a4 h4 a3 c6 g3 b6+ Kc8 h5 a2 b5 g5 h6 g2 b7+ Kc7 h7 Bd6 f8N Ra3 c5 Ne7 f7 Rb3 f6 Qe8 b6+ Kd8 Ng6 Bc7 f8Q Nd5 Kf5 e4 f7 e3 Nh3 g1R Qg4 e2 Nh4 e1R Kg6 Re7 Qh6 Bd6 Nc3 Re5 c7+ Ke7 c8B Rb2 c6 Nc7 Rb1 Nca6 c7 Nc6 b8N a1R b7 Rf8 h8N Re6+ Kh7 Nc5 N8g6+ Kf6 Rh2 Na4 Rc2 Rb6 Nd1 Ne5 Nc6 Ra6 b8Q Qd8 Qa8 Ra7 Rc5 Nb2 Bb7 Rg8 c8R Nbd3 Rb6 R7a3 Qaa4 Qf8 Nd8 Ne1 Bf3 Be7 Qae4 Rd6 Bh1 Qe8 Bf3 Bf8 Bh1 Qe6 Ne7+ Rg6 Bf3 Rd4 Bh1 Bg7 Bf3 Rh1 f8Q+ Nf7 Nhf2 Qd6 Qg8 Ne5 Nhf5 Qc6 Qc4 Bf8 Ne6 Kf7 Bh3 Rg8 Nd8+ Ke8 Qf6 Bh6 Qf1 Ng6 Bfg2 Qd6 Qfe6 Kf8 Q6d5 Qe6 Qc6 Qf6 Ne6+
BNqr4/1n1bQQB1/B5p1/1QRp4/3N1NQ1/2B1Kn2/nbb1b2B/2R2k2 b - - 0 1 legal: proof: g4 a5 f4 c5 a4 f5 gxf5 b5 axb5 g6 e4 Bb7 h4 Na6 h5 Bc8 f6 Nb8 f5 Ra7 e5 d6 d4 e6 h6 Rg7 hxg7 Kd7 f7 Qf6 exf6 cxd4 Kf2 h5 c4 h4 b4 e5 b6 Kc6 b7 e4 c5 Kd5 c6 d3 b5 Kc4 c7 a4 b6 d5 Ke3 h3 Na3+ Kc3 Nc2 d2 Ba6 h2 Nh3 a3 Nd4 a2 Qg4 d1B Nf4 Ba3 f8B Ne7 g8Q Nec6 f7 Bd7 c8B Na5 f6 Bc2 Bd6 Bb2 f8B Nbc6 b8N Nb4 Bg7 Nb7 Qf7 Rd8 Rb1 a1Q Rg1 Nc5 Bcb7 h1B Ba8 Bf3 b7 Be2 Qe7 Qa3 f7 Na2 f8Q Qa4 Rg2 Qc6 Qff7 Qc8 Rg3 Ba3 Rb5 Bb2 Rg1 Kc4 Nbc6 Kc3 b8Q Kc4 Qb6 Nb7 Nb8 Kc3 Nfe6 Kc4 Bh2 Kc3 Bd2+ Kc4 Kf4 Kd3 Rc1 e3 Ba5 Bed1 Bb4 e2 Qa5 e1N Rc5+ Bb5 Qa4 Nf3 Be1 Be2 Kg3 Ke3 Nf4+ Be4 Kg2 Be8 Qb5 Bd7 Beg3 Kd2 Kf2 B4d3 R1c4 Kd1 Ke3 Bc2 Be1 Rh8 Ba5 Rd8 Rc3 Ke1 R3c4+ Kf1 Be1 Bcd1 Rc1 Bc2 Bc3+
r3rn1n/1N4nB/1pNk3K/2Nb3n/1RBR4/1r2p1N1/RR5N/2Q1QBq1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 d5 cxd5 a4 f4 a3 f6 Nc6 g3 Na5 bxa3 Nc6 a4 Nb8 a5 Ra7 Bh3 Ra6 Bf1 Ra8 f5 h6 Ba3 e6 Bc5 Bd6 Be3 Be5 Bg5 Bf4 gxf4 hxg5 Ba6 Kd7 Kf2 c5 Kg3 e5 Kg4 e4 d4 b6 h4 c4 a4 g6 f7 e3 f8N+ Ke7 d6+ Kf7 d5 c3 d7 Ke7 f6+ Kd6 f7 c2 h5 c1R h6 Rh7 f5 Rc6 f6 Qe7 Nd2 Rg7 h7 Bb7 h8R Rc8 d8N Qe5 Ne2 Rh7 Nf3 Rc2 Nfe6 Bc8 f8Q+ Kd7 d6 Qd5 f7 Ra7 Nc6 Rc3 Rh2 Ne7 Qc1 Qd1 Ra2 Nf5 Qg8 Qh1 f8R Re7 R8h4 Re8 Bd3 Qf1 a6 Rb3 a5 Qd1 Rf6 Qh1 Qf8 Ng7 Rf4 Qf1 Rb4 Qd1 Kg3 g4 Kf4 g3 Kg5 g2 Kh6 g1N Rhd4 g5 Bh7 g4 Rf2 g3 Nh2 g2 Ng3 Qe1 Rfb2 Nh3 Qf1 g1N Qe2 Ng5 Qed1 Rb7 a7 Ne2 a6 Qg1 Qe1 Rc7 a8B Rb7 a7 Nf4 Na5 Rc7 Bg2 Bb7 a8B Rcc8 Bd5 Nfh5 Bc4 Bh1 Bg2 Nf7+ Kg6 Rcd8 Bgf1 Bd5 Nb7 Nh8+ Kh6 Kc6 Nec5 Nd7 Qcd2 Rb8 Qdc1 Nf8 d7 Ra8 d8N+ Kc7 Na5 Kd6 Nac6 Qh1 Ra7 Qg2 Raa2 Qg1 Ndb7+
3Q2RB/2n4B/krb2B2/r2p2nn/R2rp2K/n2R1R2/2b3N1/1RQ1N1QQ b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 f5 exf5 b5 axb5 Kf7 f6 Ke6 g4 Kd5 f7 Kd6 h4 Kc7 f4 g6 f5 Bg7 g5 Bf6 Ra5 Qf8 Ra4 Kd8 Ra1 Qg7 gxf6 g5 Bd3 g4 Bf1 Qg5 hxg5 Ba6 Nd2 Bb7 Nb1 Bc8 Kf2 Kc7 Kg3 Kb7 f8R a5 b4 e5 c4 h5 b6 d5 g6 d3 b5 a4 g7 d2 c5 a3 f7 a2 f6 Ra4 c6+ Ka8 c7 Kb7 Nh3 Ra6 Bd3 Bf5 c8Q+ Ka8 b7+ Ka7 Kh4 g3 Bb2 g2 Na3 g1N Nc2 Rd6 Nf4 Rb6 Rh3 Na6 b8R Nc7 Ng2 Bd7 Bh7 e4 Rd3 Bc6 Nce1 Nh3 Qcg4 Ng5 Qc1 d1B Qf3 Ne7 Rg8 Bc2 f8B Nc8 f7 Nd6 Bd4 Nc4 Be7 Na3 Ra8+ Kb7 Rb1 a1R f8R Ra2 Ra6 Rb2 Rf7 Rb4 Bef6 Ra4 Bde5 Rc4 Ra4 Rd4 Rc8 Re8 g8Q Re6 Rff8 Ra6 b6 Ra5 Qg7 Ka6 b7 Rd6 b8Q Re6 Kg3 h4+ Kg4 h3 Kh4 h2 Rf7 h1N Rg8 Bb3 Qd8 Bc2 Qf1 Ng3 Qh1 Nh5 Qg6 Nf4 Bh8 Nh5 Rff3 Bb7 Bef6 Rb6 Qf5 Ba8 Qg4 Bc6 Qg3 Bb7 Qf2 Bc6 Qfg1
N4BN1/4b1Qn/n1N1rNp1/5RB1/1pBRb1bk/b2N4/Q7/2RBbK1n b - - 0 1 legal: proof: e4 d5 g4 a5 c4 f5 cxd5 c6 exf5 e6 b4 axb4 f6 b6 h4 g6 f4 b5 f7+ Kd7 f5 Qe7 h5 Qc5 g5 Qd4 h6 Qf6 gxf6 Ne7 Qe2 Rg8 Qd1 Rg7 hxg7 Ng8 Bd3 Kd8 Bc4 Kd7 Bf1 Bd6 Bc4 Ne7 Qc2 Na6 Bb3 Bb7 Qe4 Rh8 Qf3 Bc8 Bc4 Nb8 Qd1 Ng8 Bf1 Bf8 a4 h5 d4 h4 a5 h3 d6 e5 d5 e4 a6 b3 a7 c5 a8N h2 Bc4 b2 Ne2 e3 Qb3 b4 Rf1 h1B Nf4 e2 Nd3 Kd8 d7 Rh7 Bg5 Rh8 Nc3 b1N Ne4 Rh6 Qa2 Be7 f8N Rh4 f7 Nc3 f6 Na6 Rc1 Nd1 Nh7 Nf2 f8B Rh2 f7 Nf6 Bb3 c4 g8B c3 Bc2 Bf3 Bd1 Nh1 Rf2 c2 Rf1 Ne8 Nef6 Be4 Rf5 Rh3 Qc4 Re3 Qa2 Ng3 Kf2 e1B+ Kg1 Nh1 Kf1 Nb8 Ng4 Re2 Nh6 Na6 Nf6 Re3 Bg7 Re2 f8Q Re3 Be6 Re2 Nhg8 Re3 Rb1 c1B Ra1 Bb2 Rc1 Ba3 Qf7 Re2 Bf8 Re3 Qg7 Re2 Ng4 Nf6 Bf7 Nh7 N4f6 Rc2 Be6 Rc6 Nb6 Kc7 Na8+ Kd6 d8R+ Bd7 Rc8 Rb6 R8c4 Bc8 Rd4 Rc6 Rf4 Bd7 Bf7 Bg4 Rf5 Rb6 Ne8+ Kd7 d6 Rc6 Bc4 Rb6 Rfd5 Ke6 d7 Rd6 Nef6 Rc6 Ne5 Kf5 d8N Rd6 Ndc6 Re6 Bh4 Kf4 Bg5+ Kg3 Nd3 Kh3 Rf5 Kg3 Be3 Kh4 Bg5+
RrQ1KBB1/4prQn/Q1Nr1r2/2kBR1R1/2r2b2/2B1N3/2BQ1p2/1r3q2 b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 Kd7 a4 b5 axb5 Nh6 e4 Ng8 h4 gxh4 d6 Ke6 d7 Kd6 g4 Ke6 f4 Kf6 g5+ Kg7 f5 Bb7 d5 Bc6 d6 Bd5 exd5 Nc6 Ra6 Ne5 Ra1 Ng6 fxg6 Qb8 Bg2 Qe8 Bf1 Qd8 Ke2 a5 Ke3 f5 Kd4 h5 Ke5 c5 Ke6 c4 b4 a4 b6 f4 b7 c3 b8R a3 b5 f3 b6 h3 b7 c2 Bd3 f2 Nf3 a2 Qf1 h2 Rg1 h1R Na3 h4 Nd4 h3 Nc6 h2 Nc4 Qe8 d8Q Nh6 d7 Nf5 d6 Rh6 Qc8 Ra7 d8Q Ra8 d7 Kg8 Ne3 Nh4 Rg2 Rh7 g7 Ng6 Qdc7 Rg1 d8Q h1R Qe5 R1h6 Qc3 Qf7+ Kd7 Qc4 Ke8 Rgh1 Bb2 c1R Bc2 R1h2 Rb1 a1R Qdd2 Rd1 Qcd4 R2h4 Bc3 Qa6 Rb2 Rab1 Rb5 Qa1 Qf6 Rc4 Re5 Qa6 Qde2 Rd6 Qd2 Rc5 Qg1 Qf1 Rg4 Rc4 Rg3 Ra2 Ra8 Rab2 b8B Rb5 Bc7 Rb8 Qg2 Nf4 Qg6 Ne6 Qgd3 Rf6 B7a5 Rc5 Qa6 Rc4 Bb6 Rhh4 Bbd4 Rhf4 Rf3 Rf7 Qg3 R4f6 Rff5 Kh7 g8B+ Kg6 Qg2 Bh6 Qg1 Kg7 g6 Bf4 Rg5 Nf8 Qg3 Nh7 Qg4 Rf5 Qg3 R7f6 Bd5 Rf7 Qg1 Kf6 g7 R1b4 g8B Rb1 Re4+ Be5 Rh5 Rf3 Ng2 Rf4 Be3 Rf5 Bh6 Rf4 Ne3 Rf5 Nd4 Bg3 Rg4 Ke5 Bf8 Bf4 Rg3 Rd7 Nc6+ Kd6 Rg6+ R5f6 Re5 Kc5 Qg5 Rdd6 Qh6 R1b4 Rgg5 Rb1 Qg7
RR1nr1N1/pbKnNN2/1p1QQrR1/nN1Q4/k1BB4/1r2n3/7N/4Qn2 b - - 0 1 legal: proof: b4 c5 e4 f5 exf5 g5 a4 d5 h4 gxh4 c4 Bg7 cxd5 c4 a5 Bd4 a6 Bc5 bxc5 b6 Ra3 Qc7 Ra1 Qb7 axb7 Bd7 Qf3 Be6 Qd1 Bc8 Ke2 Kd7 Ke3 h5 Kd4 e6 Ke5 c3 g4 h3 f4 h2 d4 h4 d6 Kc6 f6 h3 g5 c2 f5 Na6 b8R Bd7 f7 Be8 f8N Ne7 f6 Rh4 d7 Nf5 d8N+ Kc7 c6 Rh7 d5 Rf7 g6 Ng7 Qe1 Nc5 Be3 c1N Nf3 N1b3 Bc4 Na5 Nc3 Bd7 Ra3 Bc8 Bd4 Bb7 Rf1 h1R Nh2 Rg1 Ra2 Rg3 Rg2 Re7 f7 Re8 Rf4 Rf3 Rh4 Rf6 Rh8 Nd7+ Ke4 Kd6 c7 e5 c8Q Ne6 g7 Rf3 g8N Re3+ Kf5 e4 Ng6 Rf8 Nc6 Nd8 Nce7 Rd3 Rg4 e3 Ne5 e2 Kf4 Re8 f8Q Rg3 Qf5 Rf8 Rg6+ Rf6 Na4 Rb3 Nc3 Ndc6 Qe8 Nd8 Nf7+ Kc7 Qb1 e1N Qc1 Nc5 Ke5 Ng2 Qe1 Ne3 Qe4 Bc8 Qf8 Bb7 d6+ Kd7 Ng4 h2 Nb5 h1N Nh2 Ng3 Qh6 Ngf1 Qd5 Ba6 Nc8 Ndb7 Qe6+ Kc6 d7+ Nd6 d8Q Bb7 Qg4 Rf2 Qdg5 Nd7+ Ke6 Rf4 Ke7 Rf3 Kd8 Rf6 Qe6 Rb2 Be5 Rb3 Nce7+ Kc5 Qa1 Kb4 Qe1+ Ka4 Kc7 Bd5 Qf8 Ndb7 Bd4 Nd8 Qg2 Bc6 Qgd5 Bb7 Qh6 Nc2 Qf4 Nce3 Qfd6 Rb4 Rc8 Ndc6 Ngh6 Rb3 Rcg8 Rf8 Ng5 R8f7 Ra8 Rh7 Rhd8 Rh8 Rdb8 Nd8 Ngf7 Re8 Nhg8
B6Q/1Q1nk1Np/Q2Nr1nQ/p2Q1q2/1RNB1R1r/nqr5/2BK4/2B2r2 b - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 b4 c5 e4 a5 d4 c4 e5 g2 e6 c3 b6 Nc6 g5 Nce7 f5 Ng6 b5 Nf4 g6 Ne2 e7 Ra6 g7 Kd7 e8N Nf6 g8B Qe7 b7 Re6 b8B Ng3 d6 Ne2 d5 Qf8 b6 Re4 b7 Ng3 Na3 Qf7 Nb5 Rd4 Qe2 Ra4 Rh4 Qg6 Rb1 Ng4 Ng7 Ne4 f6 Ra3 f7 Qh6 f8Q Rb3 Ba7 Rb4 b8Q Qe6 Bd4 Ne5 Rf4 Ng6 Kd3 Ra4 Rb4 c2 Ke3 Nf6+ Kd2 Qf5 Qb6 Ne8 Qb7+ Nc7 Qd3 Qe6 Be2 f1Q Bd1 f2 Nf3 g1N Qf6 Qf5 Qh4 Q1h3 Qh6 f1R Ne5+ Kd8 d7 Ke7 Nd6 Nb5 Nec4 Na3 Be6 Re8 d8Q+ Kf8 Qe2 Qb3 Qdg5 Re7 Bd7 Re6 Bc6 Nh3 Qd3 Ne5 Qg2 Nd7 Qa6 Ng5 Ba8 Nf7 Qdf3 Nh8 Qgg5 Ne5 Qe4 Nhg6 Qe7+ Kg8 Qeb7 Nd7 Qf3 Ree1 Qe4 Kf8 Qe6 Re5 Qg8+ Ke7 Qh8 Re4 Ne3 Qa2 Rf2 Re6 Rb6 Qg5 Be5 Rf6 Nf7 Qf5 Bcb2 Rc4 Rb4 Rh4 Nc4 c1R Rf4 Qe6 Bd4 Rc3 Bc2 Qf5 Bc1 Nb5 Ba7 Re6 d6+ Kf6 Bg1 Nc5 d7 Ke7 Bd4 Na3 Ng5 Qb3 Ne4 Kf7 d8Q+ Ne7 Qbc6 Ng6 Qdd5 Nd7 Ned6+ Ke7 Qcb7
3NK1QQ/N1N2rQb/3N1B2/2q1R3/kppN1r2/np3Bb1/2B1Rn2/2b4Q b - - 0 1 legal: proof: c4 a5 e4 h5 g4 d5 cxd5 f5 gxh5 e5 exf5 e4 b4 axb4 d3 Be7 dxe4 Bc5 e5 Bf8 Ke2 Kd7 Kd3 g5 Kc4 c5 Kb5 b6 f4 c4 a4 b3 h4 g4 h6 g3 e6+ Kd6 h5 g2 h7 Na6 e7 Kd7 e8N Qg5 f6 Nh6 a5 Qg4 d6 Qh3 f5 Qg4 f7 Ng8 f6 Nb4 a6 Qd4 a7 Nc6 h6 Qf4 Nc7 Rb8 a8B Nd8 Na3 Ne6 Ra2 Qe4 Rh5 Qd4 Bb2 Rb7 Re5 Qe3 Ne2 g1B Nd4 Nd8 Bd3 Ne6 Bc2 Bf2 Qh1 Bg3 Ba1 Bg7 f8Q Ra7 f7 Nf6 Rb2 Ne4 Qg8 Nf2 f8Q Bf6 Ra2 Bg5 Bf3 Bb7 Qf6 Be4 Qff8 Qd3 Qf6 Bc1 Qfg6 Qe3 Q8g7+ Kc8 d7+ Kb7 Qg4 Rd8 h8N Rf8 h7 Rf5 Nf7 Rf4 Nd5 Bf5 h8Q Be4 Qgg8 Bh7 Q4g7 Nc7+ Kb4 Ka6 d8N b5 Kc5 Ka5 Kc6 b4 Kd7 Ne8+ Nc7+ Ka4 Nd6 Rb7 Rb2 Ra7 Nab5 Rb7 N6f5 Nd6 Na7 Nb5 Nd6 Na3 Ke8 Ng4 Nd5 Rbf7 Nc7 Nf2 Bb1 Qe4 Re2 Qd5 Bc2 Qa5 Bc3 Qc5 Bd2 R4f5 Bg5 Rf4 Bf6
1R3QKB/2r2Q1B/1B2N1n1/p4Bbk/2bnR1B1/1Q2pp2/1q3Q1R/1b1r3N b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 e4 Ke7 h4 gxh4 d4 Nd7 d6+ Kf6 d5 Ne5 d7 Nc6 d6 Nb8 f4 a5 Qf3 e5 Rh2 Ra7 Qd1 Qe8 Rh3 Qe6 Rh1 Qd5 exd5 e4 Rh3 Ra6 Rh2 Rc6 Rh1 Rc3 Rh3 Kg6 Rh1 Rg3 Qd2 Rg5 Qd1 Re5 fxe5 Bh6 Qe2 Bg7 Qd1 Bf8 Kf2 h5 Ke3 c5 Kf4 f5 d8Q e3 b4 c4 g4 c3 b6 c2 g5 h3 d7 h4 e6 h2 Ke5 f4 b7 f3 e7 h3 Ke6 Rh7 e8B+ Rf7 d6 Nh6 b5 Kh5 b6 Nc6 b8R Bb7 g6 Ba8 g7 Kg4 g8B Nb4 b7 Na6 Qd5 Rh7 Nc3 Bg7 Nd1 Bb2 Bg6 Bd4 Bf5+ Kh5 Ne2 Bg7 Ra4 Nf7 Nd4 Ne5 Bb2 c1R Qf8 Rc4 d8B Bf6 d7 Bg5 Bb6 Rc1 d8Q Rhc7 Bgh7 Nb4 Nf2 Rd1 Q5d7 Nc2 Qdf7+ Ng6 Qd5 Bh6 Qa2 Bf4 Kf6 Bh6 Ne6 Bg5+ Kg7 Nd4 Rg1 h1Q Rg2 h2 Kg8 Qg1 Nh1 Qf2 Ba1 Qb2 Rf2 Nc6 Re4 Nd4 Rc2 Bh6 B1h3 Bg5 Nf2 h1B Qb3 Bg2 Nh1 Bf1 Rh2 Qb1 Qb2 Bc4 Qf2 Nb3 Bh8 Nd4 Rc8 Qb2 b8Q Bad5 Qb7 Ba2 Rb8 Bdc4 Qd5 Bb1 Qb5 Rg1 Qb3 Rd1 Bhg4#
4k3/R1B5/3n2pb/2Nr1R2/N1RBq1nQ/1rR1p3/KB5p/QQrR1bQ1 b - - 0 1 legal: proof: h4 d5 c4 Kd7 cxd5 b5 e4 g5 hxg5 b4 d4 Nf6 d6 Ke6 d7 b3 d5+ Ke5 d6 Ng8 axb3 Nh6 b4 Ng8 b5 Ke6 g4 c6 g6 Bg7 g5 Qe8 Bd3 Bf8 g7 Qd8 g6 Nf6 g8R Qb6 g7 Qc5 Bc2 Qd5 Bd3 Nh5 exd5+ Kf6 Bg6 fxg6 Be3 Kf7 Bc1 Nf6 Kd2 e5 Kc2 h5 Kb3 a5 d8R h4 f4 h3 b6 c5 b7 c4+ Ka2 c3 b4 a4 f5 c2 b5 e4 d7 a3 b6 e3 d6 h2 Nh3 Rh6 Bb2 c1R Nc3 Rb1 Nf2 Ne4 f6 Nd2 Nfe4 Nf1 Na4 Ra7 Nec5 Nc6 b8Q Rh5 b7 Nd2 Qg1 Nd4 Qa8 Nc4 b8Q Ba6 Rc8 Ne5 d8Q Nd3 d7 Be7 Rh8 Rc1 g8R Rg5 Rh5 Rd5 Rf5 Nf2 Rh8 Bf1 Rh4 Nb5 Rc4 Bf8 Rc3 Kg8 f7+ Kg7 Rc6 Rb7 Qh4 Nd6 d8B Ng4 Bc7 Rb3 Qaa7 Be7 Qbb7 Bg5 f8B+ Kg8 Bg7 Bh6 Bf6 Kf7 Bd4+ Ke8 Qb5 Rc2 Rd1 Rc1 Qd3 Nb5 Qb1 Nd6 Ka1 a2 Qa5 Be2 Ra6 Bc4 Ra7 Bf1 Rc4 Rb6 Rd3 Rb3 Rdc3 Rd1 Bc1 Nb7 Qg2 Nd6 Nb6 Be2 Re1 Bd3 Qg1 Bf1 Ba3 Rc1 Rd1 Rb4 Nba4 Rb8 Qb6 Rb7 Kb2 Rb8 Kb3 Rb7 Qb2 a1Q Qa2 Qb1+ Qb2 Qe4 Qa1 Bg7 Ka2 Bh6 Qbb1 Rb3 Bb2
r3B3/qN6/n1QB2rn/Q1r2R1p/2R1p3/Q2pB3/q1B3k1/1RKNQb1B b - - 0 1 illegal: No possible last move
NRknB2b/1rrRq1Q1/Q6Q/p3qn1p/1B4N1/2RpQ2K/1Rn5/R3B3 b - - 0 1 illegal: No possible last move, all moves rejected
2B1b3/QBpN4/1qQrn2B/5R2/1Q2KQk1/1Np4b/1B1RRrpq/4r1Q1 b - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 g4 h4 Kf7 f4 Nd7 c4 dxc4 e5 Ndf6 exf6 Bh6 Ra6 Bg5 hxg5 Kf8 Ra1 Ke8 Ke2 Kf7 Ke3 e5 b4 h5 d4 a5 g6+ Ke8 d5 Kd7 b6 a4 g7 c3 d6 e4 f7 g3 f8R h4 f6 Ke6 f7 Kf5 b5 h3 b7 a3 b8Q h2 d7 a2 b6 Qg5 d8Q Ne7 g8B Rh6 b7 Rf6 Nd2 Qg7 Nb3 Bd7 Ba6 Bc8 Qa7 Rb6 b8Q Qf6 Q8d5+ Qe5 Bb2 Rf6 Nf3 Rd6 Re1 h1B Bb7 Bd7 Re2 Bc6 Qg1 Kg4 f5 Be8 f6 Bg2 Rd1 a1Q Rdd2 Qa5 Qc6 Bh3 Bh7 g2 Bf5+ Kg3 Bd7 Ng6 Bdc8 Qh5 Ne5 Nf4 Nd7 Ne6 Ba6 Kg4 Qb4 Qab5 Bab7 Qa6 Rh8 Qh4 Rh5 Qb6+ Rc5 Qh5 f8Q Qe5 f7 Qh2 Qh6 Rb8 f8B Ra8 Qb8 Ra1 Qf6 Rf1 Qa7 Rf5 Bh6 Rf2 Rd5 Nf4 Kd4 e3 Ke4 Ne6 Rf5 Qg3 Rd2 e2 Rcd5 e1R+ Re2 Qh4 Rd2 Qg3 Qe5 Qh2 Qf4+
8/1B3k1r/5r1B/2R1pQ2/N1Nn2B1/1N1rbr2/b1QNpRQp/BnN4K b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 fxg5 Nc6 h4 Bh6 g4 Kf8 g6 Ke8 h5 Qd7 g5 Bf8 g7 Qe6 Qf3 Nb8 Qd1 Qg6 hxg6 Bd7 Nf3 Be6 Ng1 Bc8 Kf2 c5 Kg2 h5 d4 a5 b4 e3 d6 a4 d5 h4 d7+ Kd8 b6 e6 b5 Ke7 d8B+ Ke8 d6 a3 b7 e2 b6 c4 Ra2 Be7 Qc2 Ra5 Nd2 Nf6 g8Q+ Bf8 g7 Ng4 g6 Nd7 b8N Rb5 b7 Rh7 Bf6 Re5 Nc6 Rb5 b8N Nb6 Ne5 Bd7 Nbc6 Bc8 Nd4 Nh2 N4b3 Rd5 Qh8 Bd7 g8B Rd3 g7 Nf3 Rh2 h3+ Kh1 Ba4 Rf2 h2 Bg2 Nd4 Bb7 Nd5 Rb2 a2 Rf5 Rhh3 Qh7 a1R Rh5 Rhg3 Qf5 Nc3 Bh7 Nb1 g8Q Rh3 Qg2 Bh6 d7+ Kf8 d8N Rhf3 Bg6 Be3 Rg5 Bd7 Bh5 Ra6 Bg4 Be8 Ra2 Bf7 Bg7+ Ke7 Bb2 Bg8 Bh6 Ra7 Ba1 Ke8 Ba8 Rh7 Nb7 Bf7 N7c5 Bg8 Nc1 Bf7 Ndb3 c3 Ra4 Ke7 Nc4 e5 Bb7 Bd5 Ra5 Ke8 Na4 Ke7 Qe4 Kf7 Rc5 Rf6 Rf5 Be6 Qd1 c2 Nf3 Bd5 Nfd2 Be6 Na2 c1R Rf2 Rcc3 Nac1 Bd5 Qc2 Be6 Nba5 Bd5 Na3 Ba2 N3c4 Bg5 Qf4 Rf3 Nab3 Rcd3 Qe4 Be3 Qf5
1Q1rb1n1/2bQ2pQ/3rQ2r/3R1pp1/rB2N1B1/4k3/RQ1N1R2/nK2BR2 b - - 0 1 legal: proof: b4 a5 f4 b5 a4 e5 fxe5 d5 axb5 d4 g4 a4 g5 h6 c3 hxg5 cxd4 Qd6 d5 Qa6 Nf3 Kd7 Ng1 Qa5 bxa5 Ke8 e4 Ke7 h4 f5 d4 c5 Kd2 c4 Kc2 c3 h5 a3 b6 a2 d6+ Ke6 h6 Bb7 d5+ Kf7 d7 Kg6 d8R Ne7 h7 Bc8 d6 Nd7 b7 Rg8 h8Q Ra7 b8Q Nb6 d7 Nc6 e6 Ne5 e7 Nc6 e8Q+ Kf6 a6 Nd5 Nh3 Ra8 a7 Bd6 Rh2 Rf8 Rf2 Rg8 Bd2 Ba6 Qh7 Nb6 Be2 Bb5 Qc1 Ne7 Qb2 Ke5 Bg4 Kd4 e5 Na4 e6 Bc7 Be1 Rh8 Nd2 Ng8 e7 Ke3 Qeg6 Nc5 e8Q+ Be5 Qee6 Nb3 Qge8 Ba4 Rc1 a1R Q8f7 Ra3 Ra1 Bc6 Kb1 Ra4 Ra2 Na1 Rf1 Bf3 Nf2 Bc6 Nfe4 Bb5 Qb7 Rb8 a8R Bc7 Qa7+ Rb6 Qb8 Rd6 Ra5 Bc6 Rd5 Bb5 Rc8 Bc6 d8B Be8 Be7 c2+ Kc1 Rd8 Bb4 Rd6 Qhg6 Rh2 Qfd7 Rh6 Qh7 Rh4 Qbf6 Rh6 Kb2 c1R Rf2 Rc3 Kb1 Rd3 Qb2 Bd8 Rc2 Bc7 Rf1 Rd4 Nf3 Rd3 Rcf2 Rd4 Nfd2 Rd3 Qde7 Rd8 Q7d7 Rd4 Rc5 Rd6 Rd5
B2k2K1/1prNN1b1/1RRq3R/p3rB2/4p3/3QBq2/1rb1B1Nr/1Q3NB1 b - - 0 1 illegal: No proof kernel
2B3rN/2K2bB1/pp2BBQN/8/k1Nn4/p1qN1R2/2R1rp2/2RnB1qQ b - - 0 1 illegal: Other
BnK1Nq2/1Q3B2/2B2QN1/N5kr/pQbp1Rr1/1pB5/1p1BNq2/1q3R2 b - - 0 1 legal: proof: g4 c5 e4 f5 exf5 h5 gxh5 c4 b3 cxb3 a3 b2 c4 b5 d4 e6 c5 b4 c6 Bc5 dxc5 b3 Bh6 Na6 Bc1 Nb4 axb4 Ke7 Bh3 Kf7 Bf1 Ke8 Kd2 Kf7 Ke3 Kf6 Kf4 a5 h4 d5 b5 a4 h6 g6 h7 Bb7 h5 Qd7 b6 Qf7 c7 Qe8 c8B Qc6 h6 Ra5 Nc3 Ne7 Bb5 Ra7 Ne4+ Kf7 Ke5 g5 f4 g4 f6 Kg6 f5+ Kf7 Qf3 g3 Bd2 g2 Rh4 Ra6 Nd6+ Kf8 f7 Qc7 c6 Ra5 Rf4 Qd8 c7 Ng8 Bc6 Ke7 f8N Rc5 Rf1 Qe8 Ne2 Qg6 Ne8 g1Q f6+ Kf7 Kd6 e5 Kd7 Ba6 b7 e4 b8N e3 B8b7 Bc4 c8B Qc2 Ng6 Qb1 Ba8 Ne7 Kd8 Rf8 h8B Rg8 h7 Qf2 Bc8b7 Ke6 f7 Qf5 Bhc3 d4 f8Q Ra5 Be4 Nc6+ Kc8 Rb5 Qa3 Qf8 h8Q Rh5 Qb4 Rg7 Ne7 Rgg5 Bg6 Rg2 Qh6 Rg4 Bf7+ Ke5 Na6 Nb8 Bc6 Bb5 Nc5 Bc4 Ng1 e2 Nb7 e1Q Ne2 Qb1 Na5 Qg7 Bb5 Qg8 Qb7 Qf8 Bc6 Rg7 Rh4 Rg4 Ng6+ Kf5 Qh8 Rg1 Re4 Rg4 Rf4+ Kg5 Qf6+
4n2R/2Q2p1r/pb3N1R/1n1K2kR/B1p4r/2Q1p1N1/5bRp/BRB1N1N1 b - - 0 1 illegal: No possible last move
1k1Nb1RQ/nNQ2Brp/n1p3p1/1p6/N1n1RK2/B1r2QN1/3p4/NR3Q2 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 c4 f5 g4 Nc6 gxf5 Nb8 h4 b5 c5 g6 h5 Bg7 h6 Qf6 hxg7 Qb6 cxb6 Ra4 Bh6 Ra3 Bc1 Ra8 Kd2 Kd8 Ke3 d5 a4 b3 f4 b2 a5 c6 f6 Bd7 f5 Kc8 b7+ Kc7 e6 d4+ Kf4 d3 e4 d2 e7 Ra6 e8Q Bc8 f7 Be6 f8N Bc4 f6 Ra8 e5 Ba2 a6 Bb3 f7 Nh6 g8R Bc4 a7 Ba2 e6 Bc4 e7 Be6 Na3 b1N Bc4 Na6 Qf3 Nf5 Nc2 Nc3 Ba3 Na2 Re1 Nc5 Na1 Nd7 Ne2 Ne5 Ng3 Rc8 a8N+ Kb8 Nb6 Nb4 Na4 Bd5 Ne6 Nd6 f8Q Na6 Nd8 Rc7 Re4 Bf7 Rb1 Nc8 Qd7 Be8 Bf7 Na7 Qh3 Rd7 Qhf1 Rd3 Qg7 Bd7 e8N Rc3 Nd6 Nc4 Qf6 Be8 Qd4 Kc7 b8Q+ Kd7 Rf8 Rg8 Qh8 Rg7 Qb6 Rd3 N6b7 Kc8 Qa5 Kb8 Rg8 Rc3 Qc7+
1B2Q1n1/rB2Bn2/2n1rQ2/2QbRN1b/1r3B1K/rNqr1Q1N/2RbkB2/8 b - - 0 1 illegal: No possible last move
Nq2rQQ1/1b1N1B2/NQ3R1R/qqq4n/4rBn1/3nqN1K/1QQ4b/1R4k1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kf6 d4 h5 f4 a5 Kf2 c5 Kg2 e5 b6 c4 b5 a4 d6 e4 d5 e3 b7 a3 b6 c3 d7 a2 d6 e2 Nf3 e1Q Nbd2 c2 Nc4 Qde8 d8R Nc6 b8Q Ne5 d7 Nh6 b7 Ra4 Nb6 Bd6 Bc4 Nd3 Rb1 a1Q Na8 h3+ Kh2 h4 g5+ Ke7 g6 Kf6 Be3 c1Q g7 Qd4 Qb3 Qa5 Ne1 Qh5 Qc7 Re8 b8N Bb7 g8Q Qdd5 Qb4 Qdb5 Qb2+ Be5 Be6 Re4 Na6 Qg5 Qcc2 Ng4+ Kg1 Qh5 Bd5 h2+ Kg2 h3+ Kg3 Ke7 f6+ Kd6 f7 Qf5 Rf1 h1Q f8N h2 Kh3 Qg1 Bd2 Qa7 Be6 Qg5 f5 h1N f6 Qb8 f7 Qf5 Rc8 Bh2 Ba2 Ng3 d8Q+ Qbd7 Rc5 Nh5 Qdb6+ Qc6 Rc3 Ke5 Rf2 Qcb5 Rc6+ Rd4 Be6 Ke4 Nd7 Qfc5 f8Q Rb4 Bg5 Rd4 Rf4+ Ke3 Bf7 Rde4 Rh6 Qcd2 Rff6+ Ke2 Rfg6 Kf1 Rf6+ Kg1 Bf4 Qde3+ Nf3#
Bb3N2/BR4bq/k1bnr2B/1n3Qq1/B1b1N3/Q2N1QQb/1R4r1/1q3Q1K b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 h5 g4 e5 Kg2 c5 d4 Kc7 b6+ Kb7 g5 c4 f6 a4 f5 e4 b5 a3 g6 c3 f7 e3 f6 c2 d6 a2 d5 e2 d7 e1Q d6 Qe3 g7 Qde7 d8Q Qh6 d7 Qe4+ Nf3 Ra7 Nd2 Qhe3 Rh2 h3+ Kh1 h4 Rb1 a1Q Qe7 Na6 d8Q+ Nc7 Qdd7 Qh7 Ne4 Ra6 Qf5 Nh6 g8B Qg5 Ne5 Bg7 f8N Nf7 Bg2 Nd6 Bb3 Rg8 f7 Qb2 Bd2 c1B Qdf3 Qc2 Rb2 Qb1 Ba4 Be6 Nd3 Bc4 Rb4 Bcb2+ Qf1 Bbe5 Bc1 Bf4 Bf3 Bg3 Rhb2 h2 R4b3 Qgh5 Bh6 Qg5 Qee5 Bf4 Qc5 Bfe5 Qa3 Bg3 Kg2 h1B+ Kg1 h3 Rb4 Ka8 b7+ Ka7 b8B+ Kb6 R4b3 Bg2 Ba7+ Kb7 b6 Ncb5 Ne6 Bf4 f8Q Bg3 Q8f6 Bf4 Nf8 h2+ Kf2 h1B Kg1 Bh3+ Bg2 Kc6 b7 Bg3 b8Q Rb6 Qe8+ Kb7 Qee5 Ka6 Qc3 Rc6 Qce1 Bf4 Qg3 Rb6 Nd2 Be5 Ba8 Bc6 Ne4 Nf7 Rb4 B6d5 Qc6 Nc7 Qa1 Qg4 Qf4 Bh8 Qcf6 Re6 Q6f5 Bc6 Rb7 Nb5 Kh1 Bb8 Qg2 Nfd6 Qgh2 Qh4 Qe2 Rg2 Qef3 Bg7 Qa3 Qg5 Q4g3
1Q1b1r1r/k3n1nB/4R1R1/BQK3Q1/rRRQ2b1/1N1qqBR1/5b2/r2N3r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 g4 a5 b4 h5 d4 c5 f4 Kc7 d6+ Kb6 f6 e4 g5 a4 d5 a3 f7 c4 Kd4 a2 f5 h3 f6 e3 d7 c3 d6 h2 g6 c2 g7 h4 Qe2 h3 Bg2 Rh7 Bf3 Rh5 Bd2 c1Q Nc3 Qe7 d8Q+ Qc7 d7 Ra3 Nd1 Bd6 f8R Rh8 f7 Rb3 Re8 Ka7 f8R Q7c6 b6+ Ka8 b5 Na6 b7+ Ka7 b8R Ne7 g8B Qa3 Bh7 Nc7 Rc1 a1R Rc4 Rb4 Rg8 Ra4 Rg3 Qa6 Ba5 Rf8 Qb2 Bf4 Ne2 Bg5 Rhg1 h1R Nc1 e2 Nb3 e1B Qb1 Qc1 Kc5 h2 Rb6 Bh4 Rgg6 Bf6 R1g3 Bg5 Qb2 Qe3+ Qd4 Bf6 Re6 Bf2 b6+ Kb8 b7 Ka7 Rb4 Qad3 Rc4 Bg5 Rb6 Bf6 Rbb4 Ne6+ Kd6+ Kb8 Qb6 Ng7 Qb5 Bh4 Kc5 Ka7 d8Q Bg4 Qdd7 Nc8 Qf7 Bd8 Qf5 Ne7 Qf4 Re1 Qg5 h1R Bg8 Rh8 Bh7 Nc6 Re5 Rh1 Ree6 Ne7 b8Q#
QK4k1/3R1Nb1/3nr2N/1BQrbbBb/2n1Rq1q/2NN3R/2N5/n1b1QQ2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Ke4 h5 f4 a5 g4 c5 b4 c4 d4 c3 g5 c2 f6 h3 f5 a4 d6 h4 Kd5 h2 b6 e4 d7 e3 b5 e2 b7 e1N b6 h3 Nf3 a3 Bb5 a2 Nc3 Bc5 g6+ Kf8 g7+ Kf7 Bg5 Qe8 d8R c1B Rd7+ Qe7 Ne5+ Ke8 Nd3 Nc6 b8N Kf7 b7 Ra3 Na6 Nd8 b8Q Ra5 Qa8 Bd6 Nab4 Be5 Nc2 Nb7 Kc6 Nd6 Kc7 Rh6 d5 Nc4+ d6 Rg6 Kb8 Nh6 Rb1 a1B Rb4 Kg8 Qe2 Qf8 f7+ Kh7 g8N Re6 f6 Nf5 Nh6 Bab2 Rf1 h1Q Ng4 h2 Rf3 Kh8 Rg3 Qe4 Rf3 h1B Rh3+ Qh6 Qf1 Qf4 Ra4 Qh4 Qg1 Nb6 Re4 Nc4 Qf2 Kh7 Qf1 Bf3 f8Q+ Ne7 f7 Nf5 Qe7 Ba1 Bc6 Rd5 f8Q+ Bg7 Bb5 Bab2 Qff6 Kg8 Qd4 Be2 Qc5 Be5 Ngf2 Bh5 Ng4 Bg7 Rc7 Be5 d7 Nfd6 d8N Bd7 Nf7 Bc8 Na3 Nc2 Rd7 Na1 Nc2 Bg7 Na2 Bbe5 Nc3 Qfg3 Qef6 Qe3 Q6f2 Qf4 Q2e1 Re7 Ra7 Bf5 Rd7 Re6 Ngh6+
B2B1r1N/N2BK3/1b6/3r1k1N/b2nRbR1/BrB3RQ/1r1Qrn2/q1qR4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 h5 d4 a4 b4 h3 d6 h4 Kd5 c4 b6 a3 b7 h2 f6 h3 b5 c3 f5 a2 f7 e4 f6 e3 b6 c2 g5 e2 g6 e1Q g7 Qd2 Nc3 Ra4 Ba3 c1B Qb3 Rh6 Nge2 Qc2 Bg2 Qg6 Ng3 Qh7 Nb5 Rh4 Nh5 Rf4 Rd1 h1R Na7 h2 Qh3+ Rg4 Rg1 Bg5 Rad1 Nc6 b8R a1R b7 Nh6 g8B Qg7 Bb2 Bc1 Bc3 R4a2 Ra8 Qb6 b8R Qc7 Rb4 Rb1 Bf3 Re2 Rg3 Be7 f8B Rbb2 f7 Bd8 Kc5 Ke6 d5+ Kf5 d7 Qf4 d6 Rf1 Re4 h1R Bg2 Ba5 d8Q Nd4 d7 Bb6+ Kd5 Qfg5 Ba3 Bf4 f8N Ba6 Rb8 Bb5 Ng6 Ba4 Nh8 Rf3 Bf7 Rhf1 Be8 R1f2 Rc8 Rb3 Ra8 Reb2 Rc8 Rfe2 Rc4 Q7f6 Qh2 Rh4 Qh3+ Ng4 Rb4 Bc5 Qa5 Bb6 d8B Qgh6 Qh1 Nf2 Qh3+ Rg4 Bb5 Bb8 Bc6 Qc1 Ba8 Bf4 Bf1 Red2 Bb5 Re2 Rc4 Ne6 Kc6 Nd4+ Kd7 Qe5 Bbc6 Rd3 Qb4 Qa5 Ke7 Qa6 Qh2 Rg8 Qd6 Rf8 Bd7+ Ne6 Qd4 Qa5 Qe3 Rd5 Qd2 Qa6 Rg4 Qa5 Qh3 Qa6 Rcd4 Qa5 Rd3 Qa6 Bdc6 Nd4 Rdg3 Bb5 Bab4 Qaa1 Ba3 Ba4 Bd7+
K1QBn1Q1/5bn1/2nr2n1/1QQ1BR1N/2B4q/1q2BR2/kN2r1br/2Q1bR2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 Kd5 c4 f6 c3 d7 h3 f7 a4 b6 e4 f5 c2 b7 Kb3 f6 a3 g6 e3 g7 e2 Nc3 e1R Na4 h4 Be3 a2 Qc1 h2 Ne2 h3 Ng3 Ra7 Nh5 Bd6 f8Q Nc6 b8B Bg3 f7 Qh4 d8Q Ra6 Be5 Re2 Qc5 Be1 f8R Be6+ Kd6 Bc4 Kc7 Nf6 Kb7 Bf7 g8Q Ne8 d5 Rh7 Rg1 h1B d6 h2 d7 Bg2 Qc8 h1N d8B Ng3 Rh1 Nf5 Rh3 Rh8 Rf3 Nfg7 Rf5 Rb6+ Ka8 Rh6 Rb1 a1Q Rf3 Ka2 b4 Rh8 b5 Qc3 Nb2 Qb3 Rf5 Rh6 Rf3 Rd6 Rf5 Rb7 b6 Rbd7 b7 Re7 Qd2 c1N b8Q Nd3 Qbb5 Nf4 Qdc1 Red2 Bc4 Ng6 Qd1 Rf2 Rc1 Re2 Rc3 Ree6 Qc1 Rf6 Rf1 Rf3 Rd3 Rh3 Rf5 Rh2 Rd1 Bf2 Rf1 Be1 R5f3 Bd5 R8f6 Bf7 R6f5
4R1qR/K1nQ2Nn/B2R4/Q2rB2q/2r1bBnq/2b5/2NbQn2/Q2RR1k1 b - - 0 1 illegal: No possible last move
1Q1NKBkn/1q2BB2/1Rr5/BQ3bRN/5B2/3bb1b1/nQ2q1R1/n1Q1r1q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 a5 Kf4 h5 Ke5 c5 g4 a4 f4 a3 b4 c4 d4 h3 b6 c3 b5 a2 f6 h2 b7 e6 d6 c2 g5 h4 g6+ Ke8 b6 h3 d5 Ra5 g7 Kf7 f5 Ra3 d7 Na6 b8Q Rh4 d6 Rha4 b7 Ne7 g8R Nc7 Rg2 Ned5 Ne2 Qe7 d8Q Na6 d7 Rc4 Bf4 c1B Qb6 Rd4 d8B Nab4 Rhg1 h1B Nbc3 h2 Na4 Rc3 Nc5 Be3 Ng3 Kg8 Qc1 Rd1 Qb5 Re1 Rb1 a1N Bd3 Na2 Nh5+ Bg7 Rg5 Be4 Ba5 h1Q R1g2 Qg1 Bc2 Qf7 Kd6 e5 Ne6 Ne7 Nd8 Bd3 Rb3 e4 Rb2 Qb3 f7+ Kh8 f8B Kg8 f6 Ng6 Be7 Nh8 Rb1 Bf5 f7+ Kh7 f8B Kg8 Bf6 Rc6+ Ke7 Qd5 Ke8 Qb3 R5g4 Qb2 B6g5 Be5 R4g3 Bd6 Bge7+ Qg7 Rg5 Bc7 Bh2 Bg3 Rb2 Bb6 Q8e5 e3 b8Q e2 Rb3 Be3 Qeb2 Rf1 Bb1 e1Q Bc2 Qe2 Bb1 Bgf2 Bf4 Re1 Bc2 Bg3 Rb4 Bc4 Be4 Bd3 Rb3 Bh3 Bg6 Bc8 Qbc5 Bg4 Rb6 Bgf5 Qcb5 Qh7 Beb4 Qc7 Bbe7 Qb7 Bf7+
Q1BB1B2/1q3N2/nQN2R1K/1q5n/1bQBq1r1/4r1R1/1nN1b2B/1q2krQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kg5 Ke4 b4 h5 g4 c5 d4 e5+ f6 a5 f4 a4 f5 h3 d6 h4 d7 h2 b6 h3 b5 c4 b7 c3 d5 c2 b6 a3 d6 a2 Bb2 Ke3 Bd4+ Ke4 Ne2 Kf3 Rg1 h1R Rg3+ Ke4 Na3 c1N Nc2 h2 Bh3 Na6 b8Q Qe8 d8B Qb5 b7 Rh4 d7 Bb4 f7 Rf1 f8B h1Q f6 Nd3 f7 Nb2 Qc7 Ra7 b8B Nf6 Qb6 Nh5 Kh6 Ra8 g5 Rg4 Rb1 a1Q g6 Qf3 Qc1 Kd3 g7 e4 g8Q e3 Qe1 Qfd5 Qf2 Kd2 Qg1 Qb7 Re1 Rff4 Rf1 Qb1 Rf2 Re4 Rf6 Ref4 Bbe5 Rf1 Bb8 Rh4 Qg4 Kd1 Qge6 Rg4 Qc4 Ra7 Nc3+ Kd2 Nd5 e2 Ne7 e1Q Nc6 Kd1 Bde7 Qe4 d8N Rg7 Bc7 Bg4 Bf4 Bf3 Bc8 Rg4 Qe6 Qbe5 Rh3 Qb5 Bg7 Nc7 Bh2 Rh4 Rg3 Ra3 Qa2 Re3 Qa8 Ba3 f8Q Rg4 Qg8 Na6 Qc4 Be2 Bgf8 Bb4 Nf7 Kd2 Bd8 Kd1 Na1 Ke1 Nc2+
7Q/q1bk1N2/2RQr1rN/n2Bb1Q1/r1N1nrb1/3qQNn1/6N1/R1B3KB b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 Kf2 a5 g4 c5 d4 c4 g5 h3 d6 h2 b6 a4 g6 a3 d7+ Ke7 f6+ Ke6 b7 h4 b5 h3 g7 a2 f7 c3 b6 e4 d5+ Kd6 f5 c2 f6 Rh7 Nf3 Rh6 Bg2 Rh7 Na3 Rh6 Qd3 Ne7 g8B Rg6 Qe3 Bg7 f8N Nec6 f7 Ra4 Ne6 Be5 Nf4 Na6 b8Q+ Ke7 f8N Nc5 b7 Na5 N8e6 Bc7 Re1 h1R Nc4 h2 Ned4 Rg1 Bh1 R1g4 Ng2 Rf4 Qa8 Be5 b8Q Bc7 Rb1 a1Q Rb6 Qa2 Rc6 Qa1 Bb2 c1B Rf1 Bd2 Bc1 Bc3 Qb5 Bb2 Rg1 Qa3 Qb4 Qd3 Qab8 Qe8 d8N Kd7 d6 Qe7 Nf5 Be5 Nh6 Qh7 Bd5 Qg7 Qe2 e3+ Kf1 Ne4 Ndf7 Ba6 Qh8 Bc8 Ke1 Qh7 Qf2 e2 Qe3 Nc5 Kf2 e1R Qf6 Qg7 Qg5 Re2+ Kf1 Ne4 Qbc5 Ke8 Qb4 Bg4 Qb8+ Kd7 Qh8 Qh7 Qg7 Bb6 Qd4 Nf2 Ba3 Bf6 Nh8+ Kd8 d7 Qd2 Qg8+ Re8 Qe3 Ne4 Bb2 Qe7 Qg7 Qc5 N8f7+ Ke7 Qg8 Bc7 Qh7 Qa7 d8Q+ Kf8 Qd7 Re6 Qd6+ Ke8 Qg7 Be5 Qh8+ Rg8 Nh4 Qdd4 Bg2 h1N Ba3 Nc5 Bb2 Ng3+ Kf2 Qc3 Ra1 Nce4+ Kg1 Qc2 Bc1 Qd3 Qdc5 Kd7 Bh1 Rg7 Ng2 Rgg6 Qd6+
R1N5/1Qb1Q3/QqqBBrB1/1rN4n/b1B1qRRk/1n6/6Rn/1b1KBn2 b - - 0 1 illegal: No possible last move, all moves rejected
B2RNN2/1Nr3B1/k1Nqq2q/1n5r/N1Q3n1/2b1q1B1/B1R4Q/r2Qbb1K b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 c5 Kf2 Kc7 d4 Kb6 g4 a5 Kg2 e5 d6 h5 g5 c4 f6 c3 d5 a4 f5 e4 d7 c2 d6 a3 g6 a2 g7 e3 f7 e2 f6 e1B Bh6 c1R Ne2 Bf2 Nf4 Rc5 Nd5+ Kb7 b6 Rc1 b5 Bg1 Nbc3 Na6 Na4 Bh2 Nc7 Bg3 Ne8 Rc7 Rc1 a1Q Rc2 h3+ Kg1 Qe5 Bg2+ Qd5 Be4 Be7 f8N h4 f7 Nf6 g8B Ng4 Bg7 Be1 Rhh2 Bc3 Rhd2 h2+ Kh1 Rh5 Bg2 Bg5 Bf3 Qf6 d8B Be3 d7 Qe6 Bdf6 Bc5 Be5 Bf2 Bg3 Be1 Rd3 Qdc6 Rd5 Qcd6 d8N+ Kb8 b7 Ka7 b8N Qe3 Rc5 Be6 Bb7 Bc4 Rd5 Bf1 Rd3 Rd7 Bd5 Nc7 Nb7 Qde6 Ba2 Re7 Rd8 Qd6 Nbd7 Qee6 b6+ Ka6 Ne5 Nb5 Bd5 Rc7 Nc6 Rd7 Nba5 Bc4 Kg2 Qg6 Ne6 Bb3 f8Q Rf5 Na7 Bc4 b7 Rc7 Nb2 Kb6 Bf4 Rg5 Qf7 h3+ Kf3 Bf1 Nf8 Bed2 Kg3 h1Q Bg2 h2 Kf3 Qg1 Bg3 Bd3 Bh1 Qe3+ Kg2 Be1 Qf4 Ka6 Bb3 Qge6 Qc4 Rb8 Na4 Re5 Qd4 Na3 Ba2 Rb5 Qc5 Rb1 Qb4 Ra1 Qd4 Rc5 Qc4+ Nb5 Bf4 Rbc8 b8Q Qdd7 Qe5 R8c7 Qh5 Qdd4 Bg3 Rd5 Kh3 Rg5 Ba8 Qdd6 Nb7 Rf5 Nc6 h1Q+ Rh2 Qhd5 Rd2 Q6h6 Rc2 Q5e6 Kg2 Bf1+ Kh1 Re5 Qh3 Rh5 Qh2
2q1QB1Q/BR1b3n/2rR1q1B/4N1nb/3q3B/2b3RN/k4nRK/1q1B2rN b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 f4 h5 Kf2 c5 g4 e5 Kg2 a5 b4 a4 g5 a3 b6 c4 b5 e4 d6 c3 d5 a2 b7 e3 f6 h3+ Kh2 e2 b6 e1Q g6+ Ke8 g7 Kf7 d7 h4 d6 Ke6 f7 c2 f5+ Ke5 f6 Nh6 g8R Bg7 f8N Ra6 f7 Qf6 d8B Nd7 Qe2+ Kd4 Nd2 Kc3 Rb1 a1Q Ng6 Nf8 b8B Nh7 f8B Nf7 d7 Nfg5 b7 Rc6 Qe8 Qa7 Rb2 Qad4 Ba7 Qee6 b8Q Qa2 Bc7 Qb1 d8R Bg4 Bg2 Bd7 Nf1 Kc4 Bd2 c1Q Rb7 Qcc2 Bcb6 Kb3 Bf3 Ka2 Bd1 Qcc3 Bbc5 Qcc4 Bfe7 Qcc2 Ne5 Qcc3 Rf8 Rg8 Ng3 Qcc4 Rf7 Qa6 Rb3 Qc8 Bf8 Bh8 Bce7 Bg7 N1e2 Bh8 Rg1 Rg6 Nf4 Rg7 Kh1 h2 Nh3 Rg6 Kg2 h1B+ Kh2 Bf3 Rg2 Bh5 Nh1 Rg7 Rbg3 Rg8 N3f2 h3 Rg7 Bf5 Rd6 Bd7 Rf7 Rg6 Be1 Rg8 Bh6 Rg7 Bf8 Rg6 Kg1 h2+ Kf1 Qcb7 Rh3 Qff5 Ng4 Rf6 Qe6+ Ka1 Bfg7 Qdb2 Ng3 h1N Kg1 Bc8 Kh2 Q2b4 Qe4 Ka2 Rfd7 Qa8 Rb7 Bd7 Qe5 Qe6 Qe8 Qc8 Bf8 Rf7 Qg7 Qb6 Qg8 Bc3 Qh8 Qd4 Ne5 Rf4 Ne2 Rf5 Ng1 Qf6 Rd3 Rf4 Ngh3 Re4 Nfg4+ Re2 Bh4 Rf2 Re3 Re2 Ngf2 Re1 Rf3 Rg1 Rd3 Ng3 Re3 N3e4 Nh1+ Nf2 Reg3
n2b4/1kn3b1/R1Qq1Bb1/2Q5/2n1BNq1/1Nrr1B2/RRBb3R/2q1BK1N b - - 0 1 illegal: No possible last move, all moves rejected
1bb2Qq1/qRq1N2B/1NrQ4/4bN1K/1N3R1n/1Bq2RR1/2N2r2/1k2Bn1r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 f4+ Ke4 d4 a5 b4 c5 b6 e5 d6 a4 d7 c4 f6 h6 f7 c3 d5 c2 f5 h3 b5 h2 d6 a3 f6 a2 b7 Ne7 b6 Ng6 Bd2 c1B Bc4 Na6 b8N Rh7 b7 Bb2 Ne2 Rh8 Be1 Qe7 Kh5 Nb4 d8N Nc2 g4 Ne3 g5 Nh4 d7 Ra6 g6 Nf1 g7 Rc6 Rg1 h1Q g8B Qg2 Bb3 Ke3 Na6 e4 b8N Be5 Bh7 Qg8 Ng3 Qc5 Qd5 Bfd6 f8R Bc7 Qf7 Kd3 Nf5 e3 Na3 e2 Rb1 a1Q Nc2 Qaa5 Qg6 Qa7 f7 Bcd6 Rg4 Q5b6 Rf4 Qbc7 Bg3 e1Q Nab4+ Kd2 Qe6 Qc1 Be1+ Kd1 Rb2 Qce3 Qe7 Kc1 Qe6 Qc3 Qf6 Ra6 Ndc6 Rb6 Nce7 Rc6 Bg6 Rh7 d8R Rg7 Bh7 Rg2 Nd7 Rf2 Ra2 Kb1 Ra3 Qcb6 Qe6 Bb8 Qd6 Qbc7 Nb6 Bg7 Kg4 h5+ Kg5 Bf6+ Kh6 Be5 Rd7 Ng6 Rf3 h4 Kh5 h3 Rg3 h2 Ra4 Qd8 Rb7 Nh4 Ra3 h1R Rf3 Qg3 Rf4 Qg2 Rg8 Qd5 f8Q Qc7 Rg3 Qg8 Bc4 Qd4 Raf3 Qc3 Bb3
3n1r2/1q3kB1/RB1qbb1b/Q2N1B2/2n2Q2/1NNqr3/Bn1bR2K/R1N2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 g4 h5 Kg2 a5 e4 c5 b4 f3+ Kh2 f2 d4 a4 b6 a3 e5 c4 g6 h4 e6 c3 e7 h3 g5 c2 g7 f4 g6 f3 b7 a2 b5 Qc7+ d6 Qd8 d5 Nc6 b8N Ra7 b6 Ra6 b7 Ra8 Qe1 Rh6 Nd7 Rh8 b8Q Ne5 Bh6 c1B Nc3 Ra4 Nb6 Re4 Nge2 Be3 Nc1 Be6 Qd2 Bg5 Qc7 Re1 Qf4 Re3 Qa7 Qc7 Qa5 Nd3 Rg1 Nb2 Rg3 Nf6 g8B Nd7 g7 Ne5 Bh7 Nf7 g8B Nd8 Bf5 Bf6 Rg6 Qd7 Ba6 f1Q Bg7 f2 Bb5 Qd1 Bf1 Qc6 Na8 Qd3 Nc7+ Kd7 e8R Bg5 Bd4 Bfh6 Bf7 Rf8 Bg7 Nb7 Re7+ Kd8 d7 Qd6 Bg8 Bf6 N3b5 Bc3 Rf6 Bd2 Nc3 Bf7 Re5 Be6 Rg6 Ke7 d8N Rg3 Re2 Re3 Nf7 Nd8 Nb3 Rf3 Ne5 Re3 Rae1 a1B Rb1 Qb5 Nd3 Qba6 Ndc1 Qd3 Kh1 h2 Kg2 Nc4 Bf7 Bb2 Ra1 h1N Kh2 Qb1 Bg2 f1Q Bgh3 Qd1 Bf1 Nf2 Rf6 Nd3 Rg6 Qb6 Bg8 Qb7 d6+ Kd7 N7d5 Ke8 Bh7 Kf7 d7 Nc6 d8B Qbc2 Nb1 Bf6 Nbc3 Ndb2 Bb6 Qd3 Bg8+ Ke8 Nb4 Qd6 Nbd5 Nd8 Bh7 Kf7 Bb1 Bg5 Ba2 Qc2 Rh6 Qe4 Bf5 Qd3 Rg6 Bh6 Bh8 Bd4 Rg8 Bd7 Bc5 Qdb8 Rg6 Bdg7 Ra6 Bf6 Bb6 Be6 Bg7 Qe5 Ba7 Qd6 Bb6
Q2q1N2/KN1qk3/4rq2/1r2rB2/1B2bbn1/nBR3br/1N4N1/1RNB1QR1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 g4 h5 d4 a5 e4 c5 b4 c4 b6 h4 g6 c3 g7 h3 b5 a4 g5 f3 Ke3 f2 d6 h2 d7+ Kf7 e5 c2 d5 f4+ Kd4 a3 e6+ Ke7 Kc5 a2 g6 f3 d6+ Kf6 b7 Nh6 g8R Nf5 e7 Ra6 e8B Rh3 g7 Rb6 Bg6 Be7 Ba3 c1B Bb4 Ke6 Nd2 Rh8 Rb1 a1Q Ne2 Bh4 Nc4 Bb2 Rg1 h1Q Nc1 Qg2 Be2 Ne3 Qf1 Ng4 Bd1 Be5 Nb2 Nc6 b8Q Nd4 Qa8 Bb7 Bf5+ Kf7 Re8 Bf4 Re3 Bhg3 Rc3 Be4 g8B+ Kf8 Bf7 Rh3 Bfb3 Ra6 b6 Nc2 b7 Na3 b8N Qh2 Qb5 f1R Qd3 Re1 Qf1 Qe8 d8N f2 d7 Re6 Nb7 Ke7 d8N Qd7 Ba5 Re5+ Kb6 Qh1 Ka7 Re3 Qd3 f1R Ne6 Qh2 Qa6 Qhd2 Bb4+ Q2d6 Qc4 Rb5 Qd3 Rfe1 Qf1 Qd8 Nd7 R3e2 Rc5 Re3 Ndf8 Q6d7 Na4 Qf6 Nb2 Rd3 Rc3+ Rd6 Nd4 Re3 Nc2 Re1 Ne3 Re2 Ba5 Re6 Ng2 Bd3 Na4 R2e5 Nb2 Be4 Bb4+
1BnR1bBq/1r1NNR1N/2N1Q3/K3bQ1b/7n/2Q1r2R/2bbb2Q/k2r2N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 Kd2 a5 Kc3 c5 f6 c4 f7 e4 b6 h3 f5 a4 f6 e3 b7 h4 b5 h2 Kb4 e2 b6 e1R g5 h3 g6 c3 g7 a3 Qf3 c2 Qc3 a2 Bc4 Nd7 b8N Re3 b7 Ne5 Nd7 Ne7 g8Q Ra7 b8Q+ Rc7 Bb3 Nf3 Ka5 Ba6 Bb2 c1B Qg6 Bg7 f8N Nc8 Nh7 Nh4 f7+ Qf6 Qf5 Be2 f8R Bd2 Rf7 Bf8 Bc4 Nb6 Qe8 Rb7 Qee6+ Kc7 d6+ Kc6 Ba3 Nc8 Bc5 Rg8 Ba7 Qh8 Bb8 Rg6 Qb4 Rg2 Nc3 Bh5 Rc1 a1B Nd5 Rf2 Rc3 Rf1 Rd3 Rd1 Qc3 Be2 Nf4 Bb2 Ng6 Ba1 Nb6 Bb2 d5+ Kc5 d7 Bh5 d8N Be2 Nc6 Bh5 Ne2 Ba1 Re1 h1B Ng1 h2 Nge7 Be4 Rd4 h1B d6+ Qe5 d7 B1f3 d8Q Bc2 Qc7 Be2 Rd8 Bb2 Nbd5 Qh8 Qh2 Ba1 Rf1 Bb2 Rf3 Ba1 Rh3 Bb2 Ncb4 Ba1 Qa3 Kd4 Bb3 Bb2 Nb6+ Kc3 Nbc6 Ba1 Qac5+ Kb2+ Qc3+ Kb1 Bd5 Bb2 Bc4 Ka1 Nd7 Be4 Qh6 Nf3 Rg7 Rb3 Qb4 Nh4 Bg8 Bc2 Rf7 Be5 Qd6 Be1 Qbd2 Rb7 Q2b4 B1c3 Qde6 Bd2 Qc3+
1B2Qrb1/n1BQ1R1R/N1B2N2/1q1rQ2b/r6b/2Rb3R/2Bbn2B/2k1b2K b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 Kb4 d4 a5 g5 e5 d6 c5 b6 h5 f6 e4 d7 e3 b7 c4 g6 a4 f7 c3 g7 a3 d5 a2 f5 e2 f6 e1R d6 c2 Ne2 Kb3 Nd2+ Kb4 Ng3 Re5 Bb5 Ne7 g8B Rd5 Rh3 Nf5 Bh7 Nd4 Nb3 Ne2 Nc5 Nc6 b8Q Qb6 d8B Na7 d7 Be7 f8Q Ba6 Qe8 Rf8 Bf4 c1B f7 Bd2 Rc1 a1B Bc6 Bd3 Bdc7 Qb5 d8R Be1 b3 Ka3 b4 Bac3 Kh1 Kb2 Rd7 Bcd2 Rc3 Bd8 Nge4 Be7 Re3 h3 Bh2 h4 Nf6 Bd8 Na6 Be7 Bhd6 h2 Rh3 Bd8 Qe5 Be7 Qe8 Bd8 Kg2 h1B+ Kh2 Bg2 Bf5 Bf1 Kh1 Bc4 Qa4 Bb3 Bc2 Kc1 Q5e7 Bc4 Bh2 Bd3 Qd6 Bg6 Qde5 Bh5 Rhg3 h3 Rge3 Rh8 f8R Be7 Rf7 Rf8 Rh7 Bd8 Rdf7 Be7 Bf4 h2 Rh3 Bd8 Ng4 Bdh4 Nf6 Nd4 Bg3 Bd3 Qd7 Ne2 Bf4 Qa5 b5 Qb4 b6 Qb5 Kg2 h1B+ Kh2 Rfc8 b7 Rf8 b8B B1f3 Qde8 Bfg4 Kh1 Be6 Re7 Bef7 Bh2 Bg8 Qad4 Nc8 Ref7 Ra7 Nb4 Ra4 Na6 Na7 Qg4 Qb1 Qgf5 Qb5 Qfd7
Kn4Rb/1N1kB3/4r2R/5rRB/1rQQ2r1/2Q2B2/n1bb2qN/2bBRn1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 a5 b4 c5 e4 h5 g4 c4 d4 a4 g6 c3 g5 a3 g7 a2 d6 c2 b6 h4 b7 h3 g6 h2 e5 Ne7 g8B Ra4 e6 Ra8 b5 Bh6 b6 Nd5 d7+ Ke7 g7 Qf8 d8R Ra4 Nd2 Bg5 Qe2 Bf6 Bg2 Nc6 b8Q Ndb4 d5 Ba6 b7 Nd3 Nc4 Bb5 Qbe5 Nb2 b8R Qe8 Qc3 Rh7 Nd6 Rd4 Nb7 Rh6 Qec4 Nd3 Ba3+ Ndb4 Re1 a1B Rbc8 Nb8 Rc5 Bg5 d6+ Kf6 d7 Ke7 Bf7 c1B g8B Na2 Bh5 Qg6 Bh7 Bab2 Rg8 Ba4 Bb4 Bc2 Ra5+ Kf6 e7 Ba1 e8B Bd2 Kf2 f3 Bc5 f4 d8Q+ Kf5 Ba4 Bb2 Rb5 Bf6 Bb3 Bbc1 Be7+ Be5 Rd5 Ke6 Ba4 Qg5 Be4 Bh8 Rb5+ Qd5 Qb6+ Kd7 Ra5+ Qc6 Rag5 Rf6 Bd5 Re4 Qbd4 Rfe6 Bb3 Bd3 Bd1 Bc2 Kf1 f2 Bgf3 Kc7 Kg2 f1R Ne2 Kd7 Ng3 Rg1+ Kf2 R4e5 Nf1 Rg4 Bde4+ Qd5 Ke2 Ba4 Kd3 Rf5 Rg1 h1R Nh2 Bb3 R8g6 Ba4 Rh6 Bb3 Rg3 Rf1 Bh1 f3 Rg2 f2 Bef3 Rg1 Rg8 f1N Rg3 Rgf4 R3g5 Ba4 Qc5 Qd6 Kc4 Bc2 Kb5 Qd5 Ka5 Rgg4 Qc4 Ree5 Kb6 Re6+ Ka7 Qe4 Ka8 Qc6 Q4b3 Rb4 Qbc4 Qe4 Qg1 Qe2 Qb6 Qg2 Qbd4+
Q3R2K/5N2/B3QR2/kNn1BBr1/B6R/1r1q1rrb/b2b4/bN1BnnR1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 d4 c4 g4 f3 b4 f6 Kg6 Kc7 e4 Kb6 d6 a4 e5 h4 e6 c3 e7 f2 e8B f5 d7 c2 d5 h3 d6 f4 Ne2 f3 Bf4 c1B Be5 a3 Qd5 a2 Nec3 h2 Qe6 Qe7 d8R Ba6 d7+ Kb7 b6 Nf6 b5 Rh5 Rc8 Qb4 Rc6 Qa3 Bc4 Bd6 Kg7 f1N g6 f2 g5 Nh7 Kh8 Bd2 g7 Be7 g6 Rg5 g8B Bf6+ g7 Qb3 Ne4 Qd3 Nec3 Rg3 Bgf7 Ng5 Bg6 Nf3 Bf5 Ne1 Bh5 Ra7 Bd1 Rg5 Rg1 h1B Bcb3 Bf3 Ba4 Bd5 Rh1 Bg2 Rh4 Bh3 Rd6 Nh2 Rc6 f1R Rd6 Rf3 d8N+ Ka8 Rc6 Nd7 Nf7 Nc5 Rd6 Rd7 b7+ Ka7 b8R Nf1 Re8 Rb7 Rc6 Rb8 b6+ Kb7 Rd6 Bc4 Nb5 Ka6 b7+ Ka5 Rb6 Rd8 b8Q Rgg3 N1c3 Rd5 Rc1 a1R Nb1 Ra3 Qa8+ Na6 Rd6 Ba2 Rdc6 Rb3 Rd6 Bd8 g8B Bb6 Bgh7 Bd4 Bhg6 Ba1 Bh5 Re3 Bhf3 Rc5 Bb7 Ref3 Bc8 Rc7 Rdc6 Ra7 Rb6 Nc5 Ba6 Rg5 Qd7 Rc7 Rf6 Rgg3 Qe6 Re7 Ng5 Rg7 Nf7 R7g6 Rcc4 R3g5 Rcg4 Rg7 Rg1 Rgg3 Qec6 R7g5 Qe6
2r4Q/2N4K/3b1kr1/Bq2NN2/QB1rR2R/1NN5/nBr1Rnn1/1B1b1b1n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Ke4 h5 f4 a5 g4 c5 b4 c4 d4 c3 g5 c2 f6 h3 f5 a4 d6 h4 b6 h2 b5 h3 g6+ Ke8 f7+ Kd7 d5 a3 b7 a2 f6 Ra7 Kf5 e4 g7 e3 Kg6 e2 b6 e1R Bb2 c1N Nd2 Nh6 g8N Qc7 Ne7 Re4 Bd3 Nf5 Nb3 Ra6 Ne2 Nh6 Nf5 Rd4 Nc3 Qc5 Bb1 Be7 f8R Qb5 f7 Nc6 b8Q Nd8 b7 Ne6 Re8 Ng4 f8B Nf2 Qg4 Rg8+ Kh7 Nf4 Re1 h1N Re2 h2 Qa8 Bd8 R8e4 Be7 b8N+ Kd8 d7 Bd6 Qg7 Ng2 Qh8 Rb6 Qa4 Ba6 Rh4 Rc6 Rhe4 Rc8 Rh4 Rg6 Nc6+ Kc7 d8N Kd7 Ne6 Ke8 Nfg7+ Kf7 Ne5+ Kf6 Ree4 Qa5 Nc7 Bf1 Bc2 Qb5 Nf5+ Kg5 Rb1 a1R Bd3 Na2 Rbe1 Rd1 Bb1 R1d2 R1e3 Rc2 Re2 Bc5 d6 Ba3 d7 Bd6 Qg8 Kf6 Bh6 Ng3 Bd2 h1B Qe8 Nf4 Qg8 Bf3 Qe8 Ng2 d8B+ Be7 Be1 Ngh1 Qh8+ Kg5 Ne8 Bg4 Ba5 Bd6 Nc7 Bh5 Nd1 Bf3 Beb4 Bg4 Qg8 Kf6 Nc3 Bf3 R2e3 Bd1 Re2 Ng4 Qe8 Ngf2 Qh8+
qBQ3B1/R1QQ2bN/N1n3k1/r4n1b/2N1KRBq/2q3Qq/3r3N/2nn2N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 g4 c5 d4 a5 b4 h5 b6 c4 b5 c3 f6 a4 g5 c2 d6 a3 d5 h3 b7 a2 b6 h4 d7 h2 d6 h3 g6+ Ke6 g7 Kf5 f7 Kf6 Bf4 c1N Nd2 Qe8 d8N Nh6 g8B Bg4+ Ke4 Nc6 b8N Nf5 b7 Qe6 d7 Nh4 Na6 Rh5 b8Q Rh7 Nb7 Bg7 d8Q+ Kg6 f8Q Bh5 Be2 Qe8 Ndf3 Nf5 Qdc7 Qe7 Qd3 Qh4 Na5 Rh8 Qbb7 Rd8 Qe3 Rd2 Qfc8 Rh6 Nc4 Rh7 Rb1 a1Q Rb4 Qc3 Bd1 Qd8 Q8d7 Qa8 Qbc8 Rh6 Rb7 Rh8 Ra7 Rh6 Ne2 Rh8 Rf1 h1Q Bg3 h2 Ng1 Qg2 Bf4 h1N Be2 Qh3 Nh2 Rh6 Bg4 Rh7 Bg3 Rh6 f4 Nf2+ Kf3 Nd1 Ke4 Qa5 Bf2 Qb4 Qg3 Qc3 Bc5 Rh7 Bd6 Rh8 Bd5 Rd8 Bg8 Rd5 Rf2 Ra5 Qe3 Rf8 Q7b7 Nfe7 f5+ Kf6 Bb8 Rf7 Qf3 Kg5 f6 Kg6 Qbc7 Rf8 f7 Rd8 Qe8 Rd2 Qed7 Nf5 Qfd3 Ra1 Kd5 e4 Bf3 e3 Ke4 e2 Bg4 Ra5 Rf4 e1Q+ Qe3 Qeh4 f8N+ Kf6 Nh7+ Kg6 Qg3
qQB2r1q/B1bq4/n1BR1RKR/4q1bB/b4Qr1/bk1B4/2R3N1/n2N2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d6 c5 d5 h5 b6 h4 d7 f6 Kf5 h3 e4 c4 d6 h2 e5 c3 e6 c2 e7 a4 e8B f3 g6 a3 g5 a2 b7 f2 g7 Qb6 g6 Qa6 Nh3 Be7 Nf4 Qe2 Nc3 Kb3 Be3 Ra4 Ba7 Na6 Ng2 Rg4 Rc1 a1B b8Q+ Bb7 Qc7 Bc6 d8R Ba4 d7 Ba3 Qf4 Qd2 Be2 f1Q Bd3 Qf3 Qg1 Qa8 Nd1 Qe1 Rc8 Qd2 Rb1 c1B d8R Qc3 Bc6 Nh6+ Ke6 f5 g8B Qa5 Bf7 Rf8 g7 Bd2 Bh5 Qe5+ Kd7 Be3 Rc1 Bb6 Rc2 Bc7 g8B+ Nf7 Rc4 Ng5 Rc2+ Ne6 Bh7 Nd4 B7g6 Ka2 b4+ Kb3 b5 B1b2 b6 Bc1 Rf2 Nc2 b7 Na1 b8Q+ Nb4 Qd4 f4 Bgf5 f3 Qf4 Be3 Rc2 f2 Be6+ Qd5+ Ke7 f1Q Rd6 Qe1 Re8 Qc3 Bc8 Qce5+ Re6 Qb5 Rd8 Na6+ Rd6 Bd2 Qgd4 Bdc1 Rf1 h1Q Qg1 Qbb7 Rf3 Qh2 Rh3 Qh8 Rf6 Qg3 Ke6 Qe3+ Kf5 Qd4 Qe4 Bg5 Qf4 Qe5+ Kg6 Rg3 Bhf3 Rg4 Rh6 Qbb5 B6b7 Qd7 Bfe2 Rh4 Bh5 Rg4 Bc6+
bN2r3/n4Bn1/5K2/3q2R1/brbR1RR1/BBN2q1Q/1Nkb2Q1/1n1nR2N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 g7 c3 f7 h4 d6 e6 f5 h3 b6 c2 b7 Kb3 f6 Rh4 Bc4+ Ka4 b4 Be7 f8N Nh6 g8B Nf5 f7 Ng7 b5 Bg5 b6 Bd2 Qf1 Rg4 Bd5 Rb4 Ba3 c1Q Qg2 Qd1 Ng6 Qf3 f8R Qg5+ Rf5 Qgh5 d8Q Nc6+ Kf6 e5 b8R e4 b7 e3 d7 e2 Bgf7 e1N Ne5 Nc2 Qb6 Ne3 d8R Nd1 Qe3 Na7 Rf4 Bd7 Ne2 Be6 Re1 h1B Rg1 h2 Nd3 Bd7 Bde6 Qhd5 Ng3 Kb3 Nc3 Ba4 Nb2 Kc2 Rbc8 Rb8 Rc5 Ra8 Rb1 a1N b8N Nb3 Rd7 Qdh5 Rd4 Qhd5 Na6 Re8 Nb8 Qc6 Rg5 Qcd5 Qge2 Bg2 Nh1 Bf1 Qg2 Bc4 Re1 Qg4 Qeh3 Qg3 Nf2 h1B Rgg4 Qgf3 Re5 Ne3 Re1 Nd1 Reg5 Be3 Qgg3 Nd2 Qgh2 Bg2 Nh1 Nb1 Q2g3 Bd2 Qf2 Bgf1 Qfh2 Bfd3 Q2g2 Be4 Rf1 Qc5 Re1 Ba8 Bd5 Be2 Bc4 Qcd5 Ba2 Bc4 Bb3+
4kB1n/Qq1r1BBb/1N1B4/2r2R2/2b2nK1/2qNR3/nbN5/1bN1RBnQ b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 Kf3 c5 g4 e5 d4 h5 b4 h3 b6 h2 d6 c4 f6 c3 b5 c2 d7+ Kf7 b7 h4 g5 e4+ Kg4 e3 f4 a4 g6+ Ke6 b6 h3 g7 Kf7 d5 a3 d6 a2 f5 e2 Bf4 c1N Na3 e1N Ne2 Qc7 d8R Nf3 d7 Rh7 Re8 Ne7 Bd6 Nd5 Nc2 Ng1 Re3 Nc6 b8N Nf4 b7 Ne7 d8N+ Ke8 g8B Be6 Nf7 Bc4 Nd7 Bg7 Nfe5 Neg6 Nb6 Rc8 b8Q Qb7 Qa7 Nh8 Be6 Rc5 Rb1 a1Q Rb5 Qa3 Nd3 Na2 Nec1 Qc3 f7+ Kd8 f8B Ke8 Rf3 Bf6 Qe1 Rd7 Re3 Nf3 Bg2 Qa8 Bg7 Qa1 Ndb4 Qb7 Na3 Rc8 Kg3 Bd4 Rd5 Rc5 f6 Qb2 Rg1 h1B Qf1 h2 Kg4 Qd2 Nbd3 Bb2 Nc2 Qc3 Qe1 Qd4 Qh4 Qc3 Rge1 Ng1 Bf1 Bg2 Bf5+ Be4 Be6 Bh7 Rf5 Ng2 Qh3 Nf4 f7+ Kd8 f8B Ke8 Na3 h1B Nb4 Be4 Qh1 Bb1 Nbd3 Qa5 Nc2 Qc3 Bf7+
1bQB4/RRn2NB1/5RK1/k3brR1/3Q1rBq/B1nqN3/bNr4p/4Bn2 b - - 0 1 illegal: No possible last move, all moves rejected
2nq1N1r/4k1q1/2KN1Q2/r1RR4/4nr1B/qNR1B2b/B1pQ3N/bRb4N b - - 0 1 illegal: No possible last move, all moves rejected
6b1/1k2bN2/3nQQ1N/qN1Nn2B/2Q2B1B/Rr3r1p/1q1B1bB1/1rnR3K b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 a5 Kf2 h5 Kg2 c5 b4 Kc7 d4 e5 g5 c4 d6+ Kb6 d5 c3 d7 a4 g6 e4 f6 e3 g7 e2 f7 e1Q f5 a3 d6 c2 f6 a2 Qd3 Rh6 Nf3 Qde8 d8N Q1e3 d7 Q8e7 Bd2 c1R Nc3 Rh7 Nd5+ Ka7 Qc4 Qb6 Nd4 Nh6 g8B h3+ Kg1 Rc3 Bg2 h4 Kh2 Qec5 Rhd1 Rd3 Kh1 Be7 f8Q h2 f7 Nc6 Qe8 Rb3 f8Q Nf5 Bf7 Rb8 Bh5 Ne5 Qf6 Nd6 Nf7 Kb7 Nh6 Rf7 d8B Qa5 b6 Be6 b5 Qcb4 Qg8 Rf8 Qg4 Bg8 Qge6 Ka8 b7+ Ka7 Rac1 a1B Rc3 Rb1 Ra3 Qb2 Qg5 Rf3 Qgf6 Ra8 b8N Kb7 Nd7 Rc8 Qf1 Rcc3 b6 Rb3 Qd3 Qc1 Nb5 Bd4 Qc3 Bf2 Qb4 Qb2 Qc4 Nd3 Ne5 Nc1 Bh3 Bh7 Nef7 Bg8 Kg2 h1N Kh2 Bc5 Bg2 Nf2 Kg1 Ng4+ Kh1 Kb8 b7 h3 Nbc3 Ka7 b8B+ Kb7 Nb5 Bf2 Bbc7 Ne8 Bh2 Ne5 Bhf4 Nd6 Qff5 Bf8 Bh4 Be7 Qff6
2RQ4/2n1QNBb/r4BN1/4qB1Q/1bqbR1N1/5q1p/n2r4/BN1NK1kn b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 g4 Kd6 b4 e5 f4 a5 f6 c5 g5 h5 g6 e4 b6 c4 g7 a4 b7 a3 f7 e3 f5 h3 f6 a2 b5 c3 b6 e2 Bg5 h2 Nh3 c2 Nf2 c1B Bh3 h4 Bf5 Nc6 b8Q+ Qc7 b7 h3 Qa7 Bf4 b8B Nge7 g8N Bg3 Nh6 Be5 Nhg4 Nb4 Rf1 h1N Bh4 Bh6 f8B Bg5 Bh6 Rd8 f7 Bgf6 Qa3 Ra6 f8N Rd7 Ba7 Qc4 Ng6 Bg7 B4g5 Bf8 Bg7 Rd8 Qe3 Be6 Bb6 Bg8 B5f6 Bh7 Qg5 Rd7 Qh5 Rd8 Qd2 Rd7 Nd1 Rd8 Rf4 Rd7 Nbc3 Rd8 Rc1 a1Q Qe3 Qa3 Nb1 Na2 Ba5 Qad3 Bd2 Qe4 Bc3 Qf3 Re4 Rd7 Ba1 Rd8 Rc3 Rd7 Kd2 e1Q+ Kc2 Qeg3 Kd2 Qgf4 Bg5 Bf6 Ke1 Qe5 Rc2 Nc8 Qe2 Nb6 Rc1 Na8 Rc3 Kc7 d6+ Kc6 d5+ Kc5 Rc1 Rd8 d7 Nc7 d6 B8e7 Rc3 Kd5 Ree3 Kd4 Bh4 Rb8 d8Q Rb2 d7 Rd2 Bg5 Bb4 Bh4 Qh2 Re8 Qd6 Qee7 Be5 Bhf6 Qdc5 Be6 Ke4 Rc1 Bd4 Rc2 Qe5 Rc3 Qfd3 Bf5+ Kf3+ Nde3 Qee4 Qd6 Ne6 Q8b8 Qc7 d8N Qd5 Rc6 Q3c4 Nd1 Kg2 Nf7 Qf3 Qbd8 Kg1 Qf8 Qcf4 Rc8 Nc7 Re4 Qe5 Qfe7
5NNn/Rq1n1QR1/4BB1n/1b2bR2/3qR3/1r1rpKN1/2Rb3k/1BB2Qr1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 d4 Kf6 b4 e5 g4 a5 f4 c5 d6 h5 g5+ Kg7 d7 c4 f6+ Kg6 b6 Kf5 g6 Kg4 f7 Kg3 f5 a4 d5 h3 b5 h4 b7 c3 d6 e4 f6 e3 b6 h2 g7 a3 Nd2 c2 Ne4+ Kf4 Qe1 Qe8 d8B a2 d7 Ne7 g8B Bg7 f8R h3 f7 Be5 Nf6 Ng6 Bg2 Ra4 Qf1+ Kg3 Be4 Ra3 Be7 Rd3 d8Q Be6 Qc7 Nd7 b8R Qd8 b7 Bc4 Rc8 Bb5 b8R Rh6 Qc4 Nh8 Rb7 Qb6 Rfe8 Qd4 f8N Rb3 Be6 Rh4 Rb1 a1R Ra7 Rg4 Bh7 Raa3 Ng8 Rd3 Ra1 Rab3 R1a5 Rg5 Bf6 Rg7 Bb2 c1B Bhf5 Bd2 Bc1 Rdc3 Bb1 Rd3 Qd5 Rg5 Rc2 Rg4 Nf3 Rg6 Ng5 Rg7 Qf5 Rg6 Re1 h1N Qf1 Nf2 Ne4+ Kh2 Ng3 Ng4 Kf3 Nh6 Re7 Rg5 Rg7 Rg4 Rd1 Rg6 Nh5 Rg1 Ng3 Bb8 Qh5 Be5 Qf7 Bf4 Re1 Qc4 Ke2 Be5 Qf4 Kg2 Ra4 h2 Rf1 h1Q Rf3 Qc5 Rf1 Kh2 Qc4 Qb7 Rf5 Rd5 Kf3 Qcb6 Qf1 Rdd3+ Re4 Qc5 Rc3 Qd4 Rc2
K1nRR1RN/1R6/N3n3/QNrr1b1B/3bq1q1/1np5/rbN3QB/3QNk2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 a5 g4 e5 b4+ Kb6 d4 c5 d6 h5 Kd5 h3 g5 c4 f6 c3 g6 a4 f5 e4 d7 e3 f7 e2 f6 e1N g7 a3 Nf3 h4 Bf4 a2 Na3 h2 Be2 h3 Rb1 a1B Rg1 h1Q Nc2 Ra3 Bh2 Nh6 g8Q Ra4 Qg2 Bg7 f8N Qe7 d8Q+ Qc7 f7 Bf5 Ng6 Na6 f8R Nc5 Re8 Ned3 Nfe1 Nc1 Bh5 Ne6 Rb2 Rf8 Nh8 Nb3 Qa8 Qf4 Qa5+ Kb7 b6 Ng8 b5 Qg4 Rb1 Ra2 Rb2 Ne7+ Kd6+ Nc6 d5 Na7 Kd7 Bd4 d6+ Be4 Rb1 Rf5 Rb2 Nc8 Rb1 Kb8 b7 Rd5 Kc6 Bd3 Rb2 Bf5 Rb1 Bb2 d7+ Qf4 d8R Qg3 Qb4 Ka7 b8N Qg4 Na6 Rc5+ Kd7 Kb6 Nc7 Rc6 Qa5+ Kc5 b6+ Kc4 b7 Rc5 b8N Rd5+ Bd6 h2 Kc6 Rc5+ Kb7 Rd5 Qh3 Qhe4 Nba6 h1R Nb5 Rh2 Kb8 Rd2 Bh2 Rc5 Nf3 Kd3 Rg3 Qh4 Rgg8 Qg5 Qg2 Qgg4 Nca3 Ke3 Ne1 Rd3 Qh3+ Kf2 Nac2 Rd2 Qg3+ Kf1 Qgf3+ Bf2 Qg3 Rdd5 Ka8 Bg1 Na7 Na1 Re7 Bd4 Ree8 Bc1 Rb7 Bb2 Nb5 Nb3 Qg2+
n2b2Q1/n1RK1Bqb/kq2rr1Q/1N5B/Q2p1Rn1/2N3Bb/B5qQ/4Q2N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Kc4 d5+ Kc5 Kd7 g4 Kc7 c4 Kb7 b4 a4 f4 d3 b6 h4 f6 a3 g6 d4 g7 d2 f7 h3 f5 a2 b5 h2 g5 Rh3 g6 Ra5 f6 Rf3 Nc3 Bf5 Qe1 d1Q Be2 Re3 Nh3 Qd2 Nf2 Qd3 Rf1 h1B Bh5 Bg2 Nh1 Bgh3 Rf4 Nh6 g8B Qe8 g7 e5+ Kd5 e4 c5 Qc2 c6+ Kc8 c7 Kb7 c8N Be7 f8Q Qg2 f7 Bd8 Kd6 Ng4 Na7 Nd7 Ba3 Ra4 Rc1 a1N Qe7 Rc4 f8Q Bh7 Bgf7 Nb3 g8B Na5 Qh6 Nc6 Qd1 Re1 Qa4 e3 Qh4 Rf1 Qe1 Qf8+ Ke6 e2 Bd6 Qg7 Be5 Ndb8 Rc2 Na6 Kd7 Nc7 Rc1 Kb8 b7 Rc5 Bd6 Re5 Rc2 Qf8 Ba2 Re6 Bgf7 Rf3 Re4 Qg8 Bg3 Rff6 Rf4 Qg7 Nc8 Na8 Nd6 Na5 Rc1 Ka7 b6+ Ka6 b8Q Re5 b7 Ree6 Qc2 Nc6 Ndb5 Na7 Qc7 Qg5 b8Q Qg7 Qc4 Bb6 Qg8 Bd8 Qed1 e1Q Q4a4+ Kb6 Qde2 Qd1 Qcd2 Qb3 Qee1 Kb7 Nb1 Kb6 Rc7 Qb4 Qdf2 Qa5 N1c3 Ka6 Qb4 Qb6 Qb3 Qf3 Qh2 Qg2 Qa4+
r1R3Bn/B1RrB1QB/1N2q1Qn/bkb2bKB/2qp1R2/8/Nn3rQ1/1R6 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 e5 Kg4 d5 b4 Kd7 f4 h6 c4 e4 g6 e3 f6 e2 f7 e1R g7 a4 b6 Kc6+ f5 a3 b5+ Kc5 b7 a2 b6 d3 Nd2 d4 Be2 Ne7 g8B h5+ Kg5 h4 g4 h3 f6 h2 Qc2 Ra5 Rb1 a1B Bh7 Ra6 Ba3+ Kc6 c5 Nd5 Nc4 d2 Qg6 Nd7 b8Q d1Q b7 Ne5 Nb6 Nc4 Qa8 Qb3 b8B+ Kb5 c6 Rf1 c7 Bc5 f8R Qd6 f7 Ne7 Ba7 Bc3 Qg2 Bf5 c8R Rf2 Bf3 Ba5 Ne2 Qd7 Nc1 Nb2 Na2 Qde6 Rhc1 h1N Rc7 Qec4 Rfc8 Rg8 f8Q Rg7 Rf1 Ng3 Qg8 Rf7 Q8g7 Qe6 Be2+ Qbc4 Bd1 Rc2 Rf4 Rf2 Bb8 Ra8 Ba7 Nc6 Bf3 Rd7 Bd1 Nd8 Bf3 Bf8 Be7 Nf7+ Kh4 Rd8 g5 Rd7 Bh5 Nh8 Qe8 Ne4 g6 Nf6 Kg5 Ng8 Qe5+ Ka6 g7 Nh6 Qf6 Kb5 g8B Bg7 Qeg6 Bf8 Bd8 Ba3 Be7 Bc5 Qfg7
K2R1bR1/1B2b3/1Q2N3/Br1nNkpn/B1Q2N1q/2r3Q1/4q3/Bq1BrQ1b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 g5 Kc5 f5 d4 f4 e4 g3 h4 a4 b4 c6 d6+ Ke6 h5 f3 h6 f2 b6 a3 b7 g2 d5+ Kf7 h7 Kg6 b5 a2 b6 Be7 e6 Qc7 e5 Ra7 Nf3 g1R Bd2 Kf5 Ba5 Bd7 Be2 f1Q Nc3 Bf8 e7 Qe1 e8B Rg2 e6 Be7 Ne5 Qg3 Qf1+ Qf4 Rd1 Bf8 e7 Be6 d7 a1Q d8Q Qf3 d6 Qa4 d7 Bd5 Qc8 Rg3 d8N+ Qd7 Bf7 Qh4 Ne6 Nf6 Rd4 Qf2 Bd1 Nh5 Ne2 Rb3 Rh3 Bh1 N2f4 Qe2 Bg8 Qe8 Rd8 Nd7+ Kd6 c5 Kc7 Ra8 b8Q c4 b7 Qg6 e8B Ndf6 Ba4 c3 Qa7 c2 b8Q c1B Qab6 Rf3 Kb7 Bca3 Qc4 Bae7 Bf7 Rg8 h8B Nd5 Bfe8 Ra6 Bec6 Rc3 Qd6 Ra7+ Kb8 Rc7 Bb7 Rc5 Ka8 Rb5 Re3 Bh6 Qa3 Re8 Rd3 Bhf8 Rd2 Rc1 Qg3 Rc3 Rd4 Ndf6 Rd7 Nd5 Rb8 Qh7 Rdd8 Qg2 Qbc5 Rf3 Ng4 Qg7 Qe3 Q7b2 Qec5 Bh6 Rd7 Bd6 Nd8 Re1 Qb6 Be7 Nde6 Qb1 Ba1 Qe2 Rg8 Rc3 Ne5 Bhf8 Rd8
1R3N2/1n1KQ1R1/5b1N/n1q1Nrp1/rqB1B1QB/3bB1R1/rBN1k3/3q1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 e4+ Kb4 h4 a5 d6 f5 d5 a4 d7 c4 Ke6 g6 d6 a3 b6 c3 h6 a2 h5 f3 h7 f4 h6 f2 b7 f3 e5 c2 Be3 c1Q Na3 Nc6 b8N Nge7 Nc2+ Kb3 Rh3 Qe8 Rg3 Rg8 h8N Nb4 h7 Bg7 Nf7 Ra4 h8B Ba6 d8Q Bh6 d7 Bf8 Nh6 Nc8+ Qe7 Nc6 d8B Bg7 Nd7 Bf6 Nf8 Na5 Qe2 Qf7+ Kd7 Bd3 e6 Kc4 b4 Nd6 b5 Ndb7 b6 Qb1 Bg2 f1N Bg7 f2 Be4 Qb2 Nf3 Qb4 Ne5+ Kc3 Rd1 a1R Qg4 R1a2 Bh8 Qh7 Rb1 Rg7 Ra1 Rf7 Bg7 Nh2 Rag1 f1Q R1g2 Qd1 Bh8 Nd6 b7 Nf1 b8R Ndb7 Bg7 Bg5 Rg1 Rf5 Bf6 Bf4 Bh4 Bg5 Bdb6 Bf6 Bbd4+ Kb3 Bb2 Qh8 Ng8 Qh5 Nh6 Qg5 Qd6 Qh5 e7 Qg5 e8B Qh5 Ba3 Kc3 Bf7 Qg5 Qe7 Qh5 Bc5 Kd2 Bc4 Qg5 Ba7 Qe3 Bb2 Qec5 Nf3+ Ke2 Bb6 Qe5 Be3 Qec5 Ne5+ Rf3 Qf4 Rf2 Rf3 g5 Rgg3 Bg7 Qg4 Bh8 Rf5+ Rf3 Rf7 Bf6 Qf5 Rf4 Rg7 Rf3 Qh3 Rf5 Qg4+
R1B2Q2/4RN2/1Brb4/B1q1p1b1/2n1Nk2/2NR1B1r/2Qq2nr/Kb2Nq1B b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 b4 Kf7 d4 Kg6 Kd2 Kf5 Kc2 h5 Kb2 e5 f4 c5 g4+ Kg6 f5+ Kh7 d6 a5 b6 a4 b5 c4 f6 Kg6 d7 e3 f7 e2 d5 e1B b7 h4 d6 h3 b6 h2 Bd2 Be7 f8Q Ra7 Ba5 Bh4 Bh3 Be1 Nc3 Qe8 d8B Bg3 d7 Bc5 Nf3 Nf6 Ne1 Bd6 Ra3 Nh5 Ka1 Nc6 b8R Qe7 b7 Bh4 Bdb6 Nf4 d8N Ra6 Nf7 Ng2 Ra8 Bf5 b8N Bb1 Nd7 Rh7 Rf1 h1R Nf6 Rh2 Nfe4 Qd8 Rb3 a3 Qc2 a2 Rf3 Qc7 Rd3 Qe7 Bd4 Qa7 Rb7 Qc5 Re7 Rh5 Be3 Rh7 Bb6 Na5 Bd2 Ne3 Bg2 Rh8 Bh1 Ng2 Bd8 Rc6 Bb6 Rh7 Qb8 Kg7 g6 Bf6 g5 Rh8 Na4 R8h3 Bb4 c3 Qd8 Nc4 B4a5 Bb8 Qd6 Kg8 g7 Kh7 g8B+ Kg6 Qd8 Kf5 g6 Bg5 g7 Kf4 Qf8 Bd6 Bh7 Qd5 g8B Qc5 Qd1 c2 Nac3 c1Q Bf5 Qd2 Qc2 Qg1 Bgh7 Qc5 Bc8 Qde3 Bg6 Qd2 Bh5 Na3 Kb2 a1Q+ Kb3 Nc4 Be2 Rh6 Bf3 R6h3 Ba7 Qe2 B7b6 Qf1 Ba6 Ba2+ Ka4 Qc1 Bc8 Bb1 Kb3 Qff2 Ng3 Qcd2 Nge4 Nce3 Kb2 Nc4+ Ka1 Qg1 Qd8 Qf1 Qf8
3B2QN/3K2Qb/N2R3p/1Q1q1r2/2R4q/Nnq1r2B/1k1r1n1b/2NBb1QQ b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 b4 h6 g4 a4 f4+ Ke4 d4 e5+ d6 c6 f6 h3 b6 a3 b5 a2 d5 h2 f5 Qe8 f7 Ra4 g5 Qd7 f6 Qe6 b7 Be7 f8Q Ra3 b6 Bd7 g6 Rh7 g7 Ra7 f7 Nf6 g8B Ng4 Ne2 Ra3 Bg5 Rh8 Qc8 Nf2 f8Q Rb3 Qe1 Kd3 Na3 e4 Rc1 a1Q Bh7 Qg4 Bh3 Bf5 Qcd8 Bf6 d7 e3 Kd6 Na6 b8N c5 b7 c4 Qde7 c3 d8Q Nc5 Na6 c2 b8Q Rb5 Qeb7 Nb3 Qfg7 Re8 Qdb6 Re7 Qbg8 Qh4 Qf1 Rc5 Qb5+ Kd2 Rg1 h1Q Bg6 Bc3 Bh5 Bh7 Rg4 Bf6 Rc4 Qc3 Qg1 Kd3 Rb1 c1R Q7c6 Rc2 Rd1+ Qd2 B5g4 Re6+ Kc7 Be5+ d6 Bh2 Bf6 Rce5 d7 Rf5+ Kc8 Qe4 d8N Qe5 Be7 Qc3 Nf7 Ree5 Nh8 Re4 Ng3 e2 Bd8 e1B Ne2 Re3 Kd7 Ra2 Qch1 Rc2 Nb1 Ra2 Nc1+ Kc2+ Kc8 Qd3 Bh5 Qde4 Rd6 Qd5 B5g4 Kb2 Kd7 Ka1 Na3 Rd2 Bh5 Kb2 Bd1
1qB1RnBB/b2Qr2R/6pr/3bRr2/4qBk1/KR1Nnb2/Q5Q1/R5qN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 d4 f5 Kd2 c5 Kc3 a5 Kb3 g6 e4 a4+ Ka3 c4+ b4 f3 e5 c3 h6 f4 e6+ Kd6 h7 f2 e7 c2 e8B f3 b6 Ke7 d6+ Ke6 d7 Kf5 b7 Nf6 h5 Qe7 d8Q Bh6 d5 Nfd7 d6 Qe6 b5 Nf6 b6 Bf8 h6 Nc6 b8Q Nd5 b7 Na5 Bf4 Nc7 Qd2 Kg4 Qa7 Qe4 b8R Ne6 Ba6 f1B Rh5 f2 Re5 Bg2 Nf3 f1R Qdd7 Bb7 Ne1 Bf3 Nd3 Bd5 Rb3 c1Q+ Qb2 Qc2 Bf7 Re8 Nc3 Re7 Bg8 Qb1 Bc8 Rf2 Nd1 Nc4+ Kb4 Ne3+ Ka3 Rf1 Qa5 Bg7 Qad2 Bf6 Qa2 Bh4 Qg2+ Bg3 Rc3 Qb8 Rb3 Rf2 Qc6 Rf1 d7 Nf8 d8R+ Nd7 Re6 Nf8 Qd7 Rf2 Re8 Rf1 Qgb2 Bf2 Re5+ Nf5 Qc2 Ba7 Re6 Ne3 N1f2+ Kh5 Nh1 Kg4 Qcc6 Be2 Bg3 Rf5 Re5 Bd1 Bf4 Bf3 Be6 Rg8 h8B Rgg7 Kb2 Rh7 Bg8 a3+ Kc3 Qd6 Rf1 Bd1 Qb1 a2 Kb2 Qa4 Bf6 Bc4 Qe4 Rh8 h7 Qb8 Qa8 Qc6 Ka3 a1Q+ Qa2 Qg2 Qe4 Bd5 Re1 Qd4 Bg7 Qg1 Qeg2+ Kh5 Bf6 B1f3 Ra1 Qe4 Bf7 Rg8 Be6 Rgg7 h8R+ Rh7 Bg8 Rh6 Bg7 Kh4 Rh7 Kh5 Bh8 Kh4 Qgb2 Kg4 Qg2+
3KB3/qQ2B1b1/nprRb3/2k3b1/1R1nNBQ1/2BR1qN1/4Qrr1/4Bn1R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 Kd6 Kg4 c5 Kg5 e5+ f6 b3 a4 b2 f4 b6 d4 g6 h4 e4 a5 e3 f5 e2 a6 e1R h6 c4 h7 c3 h5 c2 h6 Re5 a7 Be7 Ne2 Qe8 Nbc3 b1N Bf4 c1Q Ra4 Qb2 Ng3 Qa3 Qe2 Nd7 Rb4 Qa1 Nce4+ Kc7 d6+ Kc6 d5+ Kb7 Qg4 Qa6 Bb5 Nb8 d7 Nd2 d8R Qf8 d6 Nf1 Be8 Be6 d7 Kc6 Qe2 Rc5 Qg4 Bd6 f7 Be5 f6 Ne7 Qe2 Rg8 h8B Qa4 h7 Na6 Qg4 Rb8 a8Q+ Rb7 Bg7 Nf5 h8Q Nd4 Qh2 Kd5 Qc8 Rc6 Qhe2 Qa3 Qa8 Qf3 Bh8 Qg7 f8B Qh7 f7 Bg7 Qc8 Rbc7 Be7 Rc2 f8B R7c6 Nd6 Kc5 Qb7 Ra2 Qe1 Rf2 Qe2 Bh6+ Kf6 g5 Qh3 g4 Nde4+ Kd5 Bc5 Bg7+ Ke7 Qf5 Bcd6 Qe5 Bc5 Qb8 Bcd6 Qa7 Bd2 Bh6 Be1 Bg5+ Bf6 Rg6 Bf4 Rg8 Nh5 g3 Qg4 g2 Nhg3 g1B Bg7 Bh6 Bf8 Bg7 B6e5 Nb5 B5c3 Bh2 Rc8 Nd4 Kd8 Bg1 Be7 Bh2 Nf5 Bg3 Rb8 Bh4 Nfg3 Bhf6 Qf5+ Be5 Nh5 Rh8 Qg4 Nc7 Nhg3 Ndb5 Kc8 Bef6 Rb1 Bg5 Rb4 Rhh2 Ra8 Qa1 Ra2 Rhg2 Rd2+ Nd4 Rd3 Qa7 Rb1 Bf7 d8R+ Kc4 Rd5 Na6+ Kd8 Bg8 Rd6 Be6 Nd2+ Kc5 Rb3 Bd5 Rb4 Be6 Nde4+
R2b4/5pr1/nb2R1bn/QNk3N1/qn2R1N1/q3B3/2BK1Q1r/Nr2B1RR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 Kd6 e4 c5 d4 a5 h6 g5 h5 g4 e5+ Kc7 d6+ Kb6 e6 c4 d5 f3 h7 c3 d7 g3 h6 c2 d6 g2 e7 a4 e8N a3 Kd2 f2 Nf6 a2 Ng4 Bg7 Nh3 g1B Nc3 Ne7 Qf3 Nf5 Ng5 Qf6 d8R Qe6 d7 Ra4 Bd3 f1Q Qf2+ Kc7 b6+ Kd6 b5 Ra7 b7 Qf6 b6 Qe6 Nb5+ Kd5 Re8 Ra5 d8Q+ Qd6 Re6 Na6 b8R Ra4 b7 Bf6 Qa5 Bd8 Ra8 Qa3 b8N Rf4 Rb1 a1N Nc6 Bd7 Ncd4 Kc5 Be4 Qc4 Rh4 Rg8 h8B Rg7 h7 Nh6 Bf5 Qca4 Nb3+ Kd5 Bg6 Rf3 Bf5 Rh3 Bd3 Rh2 Bg6 Rg8 Bc3 Rg7 h8R Kc4 Be4 Bc6 Bh7 Be4 Bb4 Rg2 Rh1 Bg6 Rhe8 Kd5 Re4 Kc6 Rd4 Rh2 Re6+ Kb7 Bb2 c1R B4c3 Nc2 Na1 Re1 Rd1 Ncb4 Bc1 Bh5 Bc2 Bg6 Re3 Rf1 Rde1 Kc6 Rg3 Kc5 Re6 Rh5 Rg2 Bh2 Rgg1 Bhc7 Ke2 Rh3 Be3 Rb1 Be1 Rh2 Kd2 Bb6 Rde4+
2b5/BR4n1/Q3n1BK/br3Nn1/3Q1BBR/1QN2r1Q/2n1pRbq/2k1Qn2 b - - 0 1 illegal: No possible last move
k2q1b2/7K/2BQN1n1/2Rr1b1R/2NR1RB1/Bb2QQpr/2R1b1r1/nb5Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kf3 f5 c4 d5 h4 Kd7 b4 Kc7 e4 Kb7 e6 a5 e5 f4 Kg4 d3 Kf5 f3 Kg6 f2 c5 d2 h6 g4 c6+ Ka7 h7 g3 h5 a4 e7 a3 e8B d4 e6 d3 b6+ Ka6 h6 a2 b7 Ka7 c7 Qd4 b5 Nc6 b8R Bd6 e7 Bg4 c8R Nd8 b6+ Ka6 b7 Ka7 Be2 f1B Nh3 Qa4 Rc5 Qa5 Bc6 Ne6 e8Q Qd8 Ng5 Nd4 Rh2 Nc2 Qe3 Bf8 Na3 Bd7 Bef3 Be2 Ne6 Bc8 Qf1 d1B Bg4 d2 Nc4 Bd3+ Qf5 B1e2 Ba3 d1B Rf2 Be4 Rc1 Na1 Rf4 Bb1 Rc2 Bd7 Rc8 Rb8 Rd2 Bb3 Rdd4 Ra8 Rc7 Kb8 Qfd3 Ra5 Qde4 Nc2 Q4f3 a1R Rc8+ Ka7 Rc7 Ra2 Rc8 Bd6 Kg7 Na1 Rc7 Ne7 b8Q+ Ka6 Rc8 Ng6 Qb4 Ka7 Qbd2 Re8 h8Q Bf8+ Kg8 Re7 h7 Rf7 Qd1 Rf5 Qhe5 Rh5 h8R Rh3 Rh5 Rc2 Kh7 Rd2 Ng7 Bdf5 Qd6 Rb5 Qdh1 Rb2 Nd2 Ra2 Rc2 Rd5 Ne6 Rb2 Bb5 Kb7 R8c5 Ka8 Nc4 Bd1 Rc3 Rg2 Rc2 Be2 Bc6+
5rBK/BRRQ1bBR/5R1N/Q1r3B1/5nQ1/2bN1bpk/br3n2/1b1q2R1 b - - 0 1 illegal: No possible last move, all moves rejected
6k1/rbB5/1KQNR1B1/1nN1q3/RN4NR/3bNpbQ/1R1r4/rB2rn1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 h4 a5 d4 c5 b4 f5 e4 Kf7 b6 a4 b7 g4 d6 c4 b5 c3 d5 f3 Ke3 f2 Kd4 c2 Kc5 a3 h6 g3 b6 g2 e5 f4 h7 f3 h5 a2 h6 Bd7 e6+ Kf6 e7 Kf7 e8B+ Kf6 Nh3 g1R Nc3 Rg2 Bg6 Ra6 Bf4 c1R Qc2 Nc6 b8N Qe8 b7 Qe7 Bfd3 f1B Nf2 Rb1 Ncd1 Rg4 Ne3 Ne5 Nc6 Ra7 b8R Ra4 Re8 Rg3 Nb4 Rg1 Kb6 Be6 d7 Nf7 d8R Rb2 d6 Bc8 d7 Nd6 Qc6 Bb7 Bb1 Ra7 Nfg4+ Ke6 Rh2 Nf6 Rh3 Bg7 Rh1 Nh5 Bh2 Rf8 h8N Be5 h7 Ng3 Nf7 Bc4 h8Q Re1 Qh4 Nf1 Bf4 Rg2 Qg3 Rg1 Rh4 Rh1 Qh3 Bca6 Nf2+ Kf6 Nfg4+ Kg7 Bh2 Qg5 Re6 Kg8 Bf4 Bc4 Bg3 Nb5 Bf4 Bc3 Bb8 Be5 Bc7 Bg3 Ra8 Ra3 Ra7 Ra8 Nd6 Bd3 Ra5 Ra7 Ra4 Qe5 d8N Bc8 N8b7 Rb3 Ndc4 Rb2 Nc5 Rd2 Nd6 Ba6 Bc2 Bb7 Rb1 a1R Rb2 Qf4 Bb1 Qd4 Ndf5 Qe5 Nd6
2K1B2q/R2Bb1rb/1NnRB1Rn/Q1Q5/1n1R4/prB4n/rn3B2/kQ3N2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 h5 g4 c5 g6 f5 d6 a4 d5 c4 g7 c3 d7 f3 Ke6 f4 d6 h4 e5 h3 g5 f2 g6 h2 b6 f3 b7 c2 Be3 Kb3 Ne2 Ne7 g8R Qc7 g7 Qc4+ Qd5 c1N Nec3 Na6 b8Q+ Bb7 d8Q Nc6 Kd7 Rh6 e6 Rf6 e7 Rf7 Qc5 Nd3 Nd5 Ndb4 Bh3 f1N Bf2 Qc3 Nd2+ Kc2 Qda5 Ne3 Rhd1 h1N Nf1 Nd3 b4 Kb2 b5 Nf5 b6 Nab4 Bg4 Ba6 b7 Nh6 Kc8 Qe5 e8B Be7 d7 Qd4 Bh4 Nhf2 d8R Nh3 Rd6 f2 Bgd7 Ra7 Nb6 a3 Rac1 Rf3 Rc4 Qe5 Rcd4 Bc4 Rd2+ Ka1 Rg6 Qf6 Rh8 Bb5 g8B Nb2 Bge6 Bd3 Rh7 Qh8 Rd6 Rg3 Bf6 Rf3 Bc3 Bb1 R2d4 Rd3 Bd2 Rb3 Bc3 Bd3 Qa8 Bb1 b8B Rb7 Ba7 Bf5 Ng3 f1R Qb8 Rf2 Nf1 Rc2 Rf6 Bg6 Rg7 Bh7 Rfg6 Rg2 Qc4 Na2 Na4 Bf6 Re4 R3b4 Bb6 Rc2 Bf2 Bg5 Red4 R4b5 Bb4 Nd1 Bc3+ Rcb2 Qc5 Rb4 Re7 Ra7 Qbb5 Bf6 Nb6 Rb7 Qd3 Rb3 Reg7 Nab4 Re7 Nd8 Bb5 Bg5 Bce1 Ra2 Bc3+ Nb2 Rf7 Rd7 Rf5 Rg7 Rf7 Bf6 Ra7 Be7 Bbd7 Ndc6 Qb1+
r1bn3k/1R1R1RnN/3N3r/B1Br1N1r/r1BpKN1Q/R1b1Q3/8/1n1q2R1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 a5 h4 e5 b4 d5 c4 g5 f4 Kg7 f6+ Kh7 f7 a4 h6 a3 b6 a2 b5 g4 f5 g3 b7 g2 h5 Bg7 f8B Na6 b8R Qd6 f6 Qc5 f7 Bd7 b6 Bb5 b7 Qa3+ Qb3 Bf6 Rd8 Ra7 b8R Ne7 Rb7 Bd7 c5 Nb8 c6 Qa4 c7 Ra8 c8N Nf5 Ne7 Nc6 Nd2 Bc8 Ne2 g1N Nc4 Ng7 Nf4 Ne2 Nd6 Nc3 Nef5 Nb1 Rdd7 Nd8 Qa3 Qd1+ Bd2 Ra4 Be7 Ra8 f8N+ Kg8 Rg1 Rh7 Rbc7 Kh8 Ra7 Nc3 Rb1 a1R Rbb7 Nb1 Qb3 Ra4 Be2 Rc4 Ra3 Rca4 Qb6 Qf1 Ba5 e4+ Kc2 e3 Bc4 e2 Kd3 Qc1 Qb3 e1R Qc3 Re5 Qd2 Kg8 Qe3 Rh8 Nh7 Qe1 Nb5 Re6 Bc5 Rb6 Nbd6 Qc1 Ke2 d3+ Kf3 d2 Rf7 Bc3 Rbd7 d4 Ke4 d1R Ng5 Bb2 Bcb4 Rb5 Rg3 Rb6 Nb5 Rd3 Rg1 Rb3 Bd6 Rab8 Bdb4 Rc6 Rb7 Nge6 Rfd7 Rd6 h7+ Kf8 h6 Qd1 Qh3 Rc3 Bc5 Ra8 Qf3 Rc2 Qe2 Bc3 Qe3 Rg8 h8R Rh2 h7 Rh3 Ne7 Rd5 Nd6 Kg7 Nef5+ Kf6 Ne7 Rg6 Rf8+ Kg7 Rf6 Kh6 Rf7 Ng7 Ng2 Rf6 Nef5+ Kg6 h8Q Rh2 Qhh3 Rh1 Qg4 Rh5 Ng3 Kh6 Qh4 Rg6 Nf4 Rf6 Ngh3 Kh7 Ngf5 Kh8 Ng5 Rfh6 Nh7
2B1bR1b/1nR3QN/1KB1Q1n1/3bp1r1/4BB2/1n1Q3b/bk2NQ1N/2B1qr2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 h5 Kc4 a5 Kc5 d5 f4 d3 g4 a4 b4 d2 c4 h4 f6 Ke6 f5+ Ke5 g6 h3 g5 d4 g7 d3 g6 h2 f7 a3 f6 a2 b6 Rh7 b7 Ra7 b5 Ke4 b6 Bf5 Nf3 Bg4 Nc3+ Ke3 Bg2 Ra8 Rf1 h1B Nh2 Nc6 b8B Na5 b7 Qe8 Kb6 Kd4 c5 Bh3 c6 Rh5 c7 Rg5 Bc6 Bd5 c8B e6 Qe1 d1B Bbf4 d2 b8Q Nb7 Qd6 Ne7 g8B Ba4 g7 d1B Bh7 Bdb3 g8Q Bg7 f8Q Bh8 f7 Ng6 Qfg7+ Kc4 Rb1 a1N f8N Ba2 Ne2 Nb3 Qf2 Kd3 Qd8 Kc2 Ra1 Qe7 Qd7 e5 Qge6 Bb5 Qd8 Qb4 Qdd7 Qe1 Qd8 Bb1 Ra7 Ba2 Qdd6 N7a5 Rc7 Nb7 Qb4 Kb1 Qe4+ Ka1 Qd3 Ra4 Bce3 Kb2 Bd2 Rc4 Bde3 Rc1 Bd2 Nh4 Be4 Ng6 Nh7 Nd8 B6b7 Be8 Bc6 Nb7 Bde3 Rb1 Bc1+ Ka1 Qh4 Bd7 Bfe3 Qd2 Ba3 Be8 Rf8 Rf1 Qf2 Qd1 Bf4 Qe1 Bb4 Kb2 Bbd2 Bc4 Bde3 Bd5 Bc1+
1k3R2/bn1bNK2/1qb5/1nnpB2n/3rn1B1/1N1QNQ2/B2rR2R/N1N2R2 b - - 0 1 illegal: No possible last move
rbRK1B2/2r2pn1/B2B4/1b5k/3R2Nr/rR1N2Q1/qnBQ1br1/Q2BR3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 Kf3 a5 Ke4 h5 Ke5 a4 e4 a3 g4 h4 d4 c4 b4 a2 g6 f3 b6 f2 g7 c3 g5 h3 b5 h2 d6 c2 g6 Bf5 b7 Rh4 d7+ Ke7 b6 Rh8 d5 Rh4 Na3 Ra4 Bh6 c1R Ba6 f1R Nc4 Be6 Nh3 Qe8 d8R Rf2 Rc8 Re2 d6+ Kd7 Nb2 Qd8 Re1 Ke8 d7+ Ke7 Nf2 h1R Ng4 Rc7 Nd3 Nf6 g8B Rg1 g7 Rd2 Bh7 Rf2 g8Q Ne8 Rc1 Rfg2 Rc4 a1B+ Rd4 Bc3 Qa1 Bc4 Kf5 Bb4 e5 Bc5 e6 Nc6 b8B Bb5 b7 Nb4 Qg7 Bb6 Qe5 Bg7 Qg3 Ra3 Bg6 Kf8 e7+ Kg8 Bh5 Be5 Bf8 Ng7+ Kg5 Qe8 d8Q Kh7 Qd6 Qc6 e8B Qd5 Bc6 Bf4+ Kf6 Qa2 Qd7 Ba7 Ke7 Be3 Kd8 Bf2 Bf3 Rf1 Bd1 Rfh1 Ne3 Kh6 Bg6 Rhg1 Bf5 Rf1 Ng4+ Kh5 Qdd6 Rfh1 Qdf4 R1h3 Qd2 Ra4 Nc5 Nd3 Be4 Nb2 Nd3 Rc3 Be5 Rc7 b8R Ra5 Rb7 Bb8 Bed6 Ra3 Qh2 Rf3 Qg3 Rf5 Rb6 Rfc5 Bh7 Ra7 Be4 Ra8 Rb7 Rc7 Bf5 Bd7 Rb3 Bb5 Nde5 Bc4 Bfc2 Bb5 Nd3
1Br3nN/1Q1r4/2Q1QB1b/2b1r2R/7K/r2N3N/qnBk1p1R/2QbNnN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 Kd6 d4 f5 b4 a5 h4 g5 h6 c5 e5+ Kd7 h5 a4 e6+ Kd6 h7 a3 h6 g4 b6 f3 Kg3 a2 e7 c4 e8Q f2 b5 c3 b7 c2 b6 Qf6 Bd3 f1R Nd2 Qe5+ Kh4 g3 Bb2 c1N Rh2 g2 Ndf3 f4 Bc2 Bg4 Ne1 Nd3 Qc1 Na6 b8Q+ Nc7 b7 f3 Qc6+ Ke7 d6+ Ke6 d5+ Kf5 d7 Ke4 d8Q Ra7 d6+ Qd5 Rb1 a1R d7 R1a3 Qdf6 Rf2 d8N Re2 Nf7 Bh5 Qb6 Qa2 Qfc6+ Nd5 Ne5 Bc5 Qe6 Ne3 Qbc6+ Kf4 Ba1 Nb2 Qbc8 f2 b8B Rd7 Q8b7 Bg4 Qd2 Bf3 Rd1 Bh5 Qc1 Bf3 Rd2 Nf1 Rd5+ Ree3 Qh3 Bd1 N5d3+ Ke4 Rh5+ Kd4 Qf5 Kc3 Qfe6 Re5 Rg5 Nf6 Rh5 Rc8 h8N Ng8 h7 Rf7 Nh3 g1B Ng6 Rfc7 h8N Rd7 Rg2 Bh2 Ng1 Bf4 Rh2 Bh6 Ngf4 Ra7 Qb1 Kd2 Nfh3 Nc4 Bb2 Ra3 Bd4 Nb2 Qa1 Re3 Bf6 Re5 Qc1+
1rB5/2k1K1Q1/3NN1N1/3B1N1N/bQ1n1b1Q/3qBB1R/1r2np1R/nn1b2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 c5 Ke5 a5 d4 f5 g4 f3 e4 h4 b4 f4 d6 c4 b6 c3 g6 c2 g5 h3 g7 f2 b5 a4 d5 h2 b7 f3 g6 a3 b6 a2 Nc3 Qc7 Qd4 Ra7 Nce2 Na6 b8Q Rb7 Bg2 f1N Nh3 f2 Ng3 Rh6 Nh5 Qc4 Be3 c1N Bf3 Qd3 N3f4 Kd8 d7 Nb4 Ke6 Qc3 e5 Ne7 g8B Rc7 b7 Rh8 g7 Nbd3 Ng6 Qc2 Qh4 Rh6 Qa7 Ne2 b8Q Ne1 Qbb4 Qd3 Rb1 a1R Rb3 Rcc1 Kf6 Rc6+ Be6 Nd2 g8B Rc2 Beg4 Nb1 e6 Nc6 Qad4 Ba6 e7+ Kc7 d8N Bb5 Nb7 Ra8 Nd6 Rb2 Bc8 Ba4 Nf5 Nc2 Ke6 Rh8 Qg7 Na1 Kf6 Rb8 e8N+ Kd8 d6 Ncd4 d7 Bd6 Ra3 Bf4 Bgd5 Rg8 Ned6 Kc7 Ke7 Bd1 d8N Ba4 Rg1 h1B Rg2 Bd1 Rh2 Bg2 Nh6 Bh3 Rb3 Bd7 Nhf5 Ba4 N8f7 Rf8 Ng5 Rf6 Nc4 Rc6 Ncd6 Rc1 Ra3 Bdc2 Rb3 Rg1 Ra3 Bd1 Rb3 Rb6 Ne6+ Kb8 Bg2 Qb5 Bc1 Qa6 Rbh3 Qd3 Be3 Rb5 Nd8 Kc7 Bgf3 Rb8 Ne6+
1n2r2r/2N2N2/2bR2Nb/KbQ4R/N2n1qk1/1QR1BQ1p/1n1r3Q/b1N4B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc3 c5 g4 h3 g5 h2 f6 c4 d6 Ke6 f5+ Kd7 f7 h4 b6 e4 g6 a4 g7 e3 b7 e2 f6 Ke6 d7 Kf5 b5 e1N d5 a3 d6 a2 Kb4 c3 b6 c2 Ne2 Rh6 Bg2 Ra5 Be3 c1B Nbc3 Re5 Na4 Qc7 d8N Re6 Ka5 Rh8 d7 Na6 b8Q Be7 f8N Qf4 b7 Kg4 f7 Nh6 Ng6 Nd3 f8Q Nb2 g8Q Nf5 Nf7 Bf6 d8R Bd7 Qc5 Bb5 Rd6 Nd4 Qgf8 Re7 Qb3 Re8 Qbc7 Bg7 b8N Bh6 Rb1 a1R Be4 Ra2 Ra1 Nb4 Na6 Bd2 Nc1 Bc3 Qb8 h3 Nc7 Bd3 Rd1 Bb5 Rd3 h1B Bb7 Bhc6 Rb1 Be1 Rc3 Na6 Ba8 Bh4 Ra1 Bf6 Bb7 Bd7 Bh1 Bdc6 Rb1 Nd3 Rb2 Bfg7 Rf2 Rd2 Rf1 Nb2 Rf3 Qe5 Rf5 Qf4 Rh5 Bf6 Qe5 Bfg7 Qa7 Nb8 Qac5 Qe4 Qh2 Qf4 Nh4 Bf6 Ng6 Qf5 Rc4 Nd3 Nf4 Ne6 Ng5 Ba1 Ng6+ Nd4 Rc3 Nb2 Qf6 Qe5 Nf7 Qg5 Qf1 Qf4 Qf3+
1NRB1NBr/3NbB2/QN3BQQ/1bnn4/2r5/pB2b3/K1Rkb3/5rqn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 Kc3 c5 Kb3 h5 g4 f5 b6 c4+ Ka2 a4 b4 c3 b7 c2 b5 f3 e5+ Kc7 b6+ Kd7 g6 f4 g7 a3 g5 h4 g6 h3 d6 Kc6 d7 Kd5 e6 Ke4 e7 f2 e8Q+ Ne7 g8B f3 g7 h2 d5 Rh4 d6 Nc6 b8N Ne5 b7 Ng4 Bb3 Nh6 g8B Bg7 Nc3+ Ke5 Qd3 Qb6 d8B Bf6 d7 Nf7 Nd5 Nd6 Bg5 c1B Ne2 Rc4 Nd4 Be3 Qeg6 Ne4 Ne6 Nc5 Rc1 Qa7 Bh3 f1B Rc2 f2 Nb6 Be2 Rhc1 f1R Nf8 h1N Bhe6 Nd5 Bef7 Be7 Bf6+ Kf4 Qh6+ Kf3 Qdg6 Kf2 Bc7 Kf3 d8Q Bd7 Qc8 Bb5 Nb8d7 Kf2 b8N Kf3 Rd1 Kf2 Rd3 Ke1 Rdc3 Kd1 Bd8 Ke1 Rc1+ Kd2 Qc6 Qc7 Qb7 Qh2 Qa6 Qg1 R1c2+ Kd1 Nc6 Nb7 Bh7 Bg5 Ne6 Rh4 Bc7 Rh8 Bhg8 Be3 Ncb8 Rhf4 Rc6 Nc5 Nef8 Rc4 Bd8 Ke1 Rc8 Kd1 Rc1+ Kd2 Rc2+
B1QQr2k/3QN1R1/2r5/B2KN3/b1p4q/1NN5/2nbNrQR/nBn2n1b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kg7 Ke4 c5 b4 h5 g4 a5 d4 e5 f4 c4 d6 h3 g5 h4 g6 a4 b6 h2 b7 h3 d7 a3 d5 a2 f6+ Kh6 d6 Qc7 d8Q Qc6+ Qd5 Ra3 g7 Kh7 d7 Rg3 f7 Rb3 f5 Qc5 b5 Rb2 f6 Rb4 b6 Na6 b8N Qd6 b7 Rb6 Bd3 Qe7 Nc3 Nb4 Na6 Nc2 b8Q Rc6 Bd2 Nh6 Nc5 Nf5 Nge2 Nfe3 Rag1 a1N Nb3 Nf1 Qe8 Rg8 d8Q Bd7 Qbc8 Rh8 Rg2 Rg8 Rhg1 h1R Rh2 Rh8 Rg4 Rg1 Be1 Rg2 Rg3 Rf2 g8B+ Kh6 Bh7 Bg7 f8N Rg8 f7 Qh4+ Nf4 Bf6 Rg4 Bg5 Nfe2 Kg7 Ng6 Bd2 Ne7+ Kh8 f8N Rf5 Qc5 Rf2 Kd5 e4 Rg7 e3 Qf7 Be8 Nd7 Rf8 Bde4 Rg8 Ng3 e2 Ne5 Rf8 Qf3 Bd7 Qd6 Re8 Rh1 h2 Qg2 Rb6 Qe6 Ba4 Qed7 Rc6 Bf3 Be3 Bd2 e1N Nge2 Nd3 Bhe4 Nc1 Be1 Na3 Bb1 Bf4 Ne4 N3c2 Ba5 Bd2 N4c3 Ra6 Kc5 Rd6 Ba8 Rc6+ Kd5 Ng3 Rd1 h1B Re1 Nf1 Rd1 Bf4 Rd3 Bg5 Rh3 Bd2 Rh2
Q5Rb/rQ2B2R/1n2B1r1/2Kp3b/2Q1BnB1/2b1rbq1/NQ3Bn1/4NkN1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 e5 Kc4 a5 b4 h5 f4 e4 g4 e3 f6 Kg6 b6 a4 b5 d6 f5+ Kh7 f7 h4 b7 h3 f6 Kg6 b6 d3 Bg2 a3 Qf1 e2 Be3 e1N Nc3 d2 Be4+ Bf5 Na2 d1R Bf2 Nc6 b8Q h2 b7 Bh6 f8B d5+ Kc5 Rd3 c4 Rb3 f7 Na5 Be7 Ra7 f8Q Qd7 Qfc8 Ng2 Qa8 Nf6 b8Q Bf8 Qcb7 Re3 Qb2 Qa4 Qb8b7 Nh5 Rc1 Qb3 Rc2 Kh7 g6+ Kh6 g7 Bg6 g8B Nhf4 g5+ Kh5 Be6 Bg7 Rc3 Be8 g6 Rh6 Rc2 Bf6 g7 Rg6 g8N Bh8 Nh6 Bf7 Nf5 Kg4 Nb4 a2 Nh4+ Kh5 Rc1 a1B Nhf3 Be8 Na2 Qa3+ Q2b4 Bac3 Ne1 Qb3 Qa3 Bf7 Qb2 Be8 Kd6 Bf7 c5 Nc4+ Kc6 Nb6 Qc4 Qa3 Kb5 Be8+ c6 Qd6 Bf7 Kg4 Rd1 Qe5 Kc5 Qg5 c7 Qh4 Ngf3 Kh3 c8B+ Qg4 Rg1 h1B Bfe6 Bf7 Ng5+ Kh2 Nh3 Qg3 Bg4 Nh4 Bce6 Bf3 Nc2 Be8 Rh1+ Kg2 Ng1 Bf7 Rd3 Be8 Ne1+ Kf1 Rh3 Nhg2 Rh7 Bf7 Rd4+ Ne2 Bb1 Rg8 Rf4 Bh5 Rf8 Rg5 Rg8 Rg6 Qd4 Nef4 Be4 Rh6 Qa4 Rg6 Qc4+
BB2nn1R/1Kbb2b1/3Rr1np/q5N1/1k1Q1RRr/3Q3b/2r1N1B1/3N1RB1 b - - 0 1 illegal: No possible last move, all moves rejected
Q2N4/2r2bRq/1B3p1k/Rr4R1/2Q1bQ2/n1n2bQK/Q1N3nb/BB2Br2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 e4 a5 b4 c5 d4 h4 g4 c4 Kg2 c3 d6 f6 g6 c2 e5 f3+ Kh3 f2 e6 a4 g7 a3 b6 a2 d5 Qe7 b7 Qd8 e7 Kf7 b5 Kg6 e8Q+ Kh7 b6 Nd7 b8Q Bb7 g5 Ra5 Qd2 Nh6 g8R Qc7 Bb2 c1R Bd3+ Nf5 Na3 Bc6 b7 Rc4 Nf3 Rf4 g6+ Kh6 g7 Ra7 Nc2 Be7 Ng5 Nb6 d7 Ne3 d8B Ng2 d6 f1B d7 Be4 Ne6 Na4 Rg1 Bd6 Qf7 Bf3 Qa8 Nc3 b8Q Qb7 Bh7 Bc4 Ba5 Qe4 d8B Rc7 Qd3 Rf5 Qf1 Rb5 Bg6 Bd5 Qc4 Bh2 Bb6 Qd3 Be7 Qe4 Bb4 Qd3 Nd8 Rh7 Qe8 Bf7 Qe5 Be4+ Qg3 Rh8 Raf1 a1N Rf5 Bf3 Rg5 Qe4 Rf8 Rh7 g8Q Qd3 Nd4 Nc2 Ba1 Na3 Nc2 Be4 Re8 Bf3 Ree5 Rg7 Bh5 Qh7 Bg6 Be4 Qe8 Rg8 Qee6 Re8 Rc5 Bf3 Qed5 Re1 Qa2 Rf1 Qdc4 Ne2 Be1 Nc3 Bf5 Be4 Kg4 h3 Re5 Rb1 Ra5 Rb5 Qf4 Bg3 Bg6 h2 Kh3 h1B Bf5 Bh2 Qg3 Rcc5 Qbf4 Bf3 Nb4 Rc7 Bb1 Be4 Nc2 Ne3 Qgf2 Bhf3 R1g4 Ng2 Rg7+ Kh5 R4g5+ Kh6 Q2g3
3N4/1b1n1RBr/2BQBp2/N1bn2qR/b1r1b1N1/n2N1R2/QK3B1r/2N2k2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 b4 Ke5 d4+ Kd6 Kd2 h5 Kc2 a5 g6 c5 g5 f3 g7 f6 g6 c4 b6 f2 b7 c3 e5+ Ke7 e6 Kd6 b5 h4 b6 h3 e7 a4 e8B h2 Bc6 a3 Bc4 f1B Nd2 a2 Ndf3 Ra7 Ne5 Rh7 Nd3 Ra4 Ne2 Ra6 Bh6 Be6 Nec1 Nd7 b8B+ Qc7 b7 Bf5 Ba7 Nc5 b8N Ne7 g8N Qb6 Bg7 Nd7 Nh6 Be4 Ng4 Qb5 Rb1 Qc5 Rb3 a1N+ Kb1 c2+ Kb2 Ra4 Qd2 Bfg2 Qa5 Rb4 Qa2 Bgf3 Bb6 Bd1 Ba7 Ra4 Rb7 Qa5 Rf1 h1B Rf3 Qd2 Rb5 Qg5 Bb3 Rc4 Bc5+ Kc7 d6+ Kc8 d5 Bg2 Ne2 c1R Bf2 Nc2 Rc5 Ra1 Nec1 Na3 Ra5 Ne5 d7+ Kc7 d8N Nd7 Rc5 Kb6 d6 Nd5 Ra5+ Nc5 d7 Bc2 Ne2 Rah1 Nec1 R1h2 Ra7 Rc3 Bc4 Ba4 Bb3 Nb4 Be6 Rc4 Bh8 Bd6 g7 Nd5 g8R Bf8 Bg7 Bh1 Ba8 Kb5 Rh8 Bd6 Nbc6 Be7 Nf7 Bg2 d8Q Nd7 Qc7 Bc5 Nfd8 Bh1 Na5 Bg2 Nf4 Kb4 Bc6 Bh1 Ka1 Bg2 Nfd3+ Kc3 Qd6 Bh1 Qb3+ Kd2 Qa2+ Kd1 Kb2 Bg2 Ncb3 Ke2 Nbc1+ Kf1 Rc7 N7b6 Re7 Nd7 Rf7 Nc3 Bf8 R7h5 Bb7 Bd5 Rf5 Bge4 Rf3 Bdc6 Bg7 Nd5 Ba6 Ba8 Bb5 Bb7 Bc6 R5h3 Rh6 Rh4 Rg6 Rh8 Rh6 Rh7 Rh5
BN4nR/4Q3/r1q1r3/1B1RQ1N1/Q1q2Nk1/r1Qb4/r1NprB2/bQn3K1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 Kf6 Kf2 a5 b4 e5 c4 d5 h6 g5 h5 g4 b6 a4 b7 e4 h7 a3 b5 a2 c5 d3 h6 d2 b6 d4 c6 d3 c7 Nc6 b8Q Qd6 b7 Ra4 Ne2 e3+ Kg1 g3 Na3 g2 Nc2 Be6 c8B Kf7 f6 Kg6 f7 Ra3 f5+ Kg5 f6 Ne5 Nf4 Bg7 f8N e2 f7 Bc4 N8e6+ Kg4 f8Q Qc6 Qe7 Bf6 Rb1 a1R Rb5 R1a2 Rd5 Ba6 Bb2 Bb5 Qb1 d1Q Bd4 e1R Qa8 d2 b8N Qe2 Qa4 Qec4 Bf2 Nd3 Bb7 Nc1 Ng5 Re2 Ba8 Ba1 Rh3 Nf6 Rh1 Re8 h8Q Ng8 h7 Re6 Qhf6 Re2 Qee5 Re6 h8Q Ba6 Qe7 Bb5 Kh2 g1R Qc3 Rg3 Qhe5 Rge3 Kg1 Rd3 Qab4 Ra6 Rh8 Rde3 Qa4 Rd3 Qcb2 Rda3 Qbc3 Q4c5 Bg2 Bd3 Be4 Q5b5 Bg6 Qcc4 Be8 Qb7 Bb5 Qbc8 Rd8 Q8c6 Rd5
1R1rNR2/q1Bq1b2/R1n1r3/BBn2N2/4q1B1/k1K1p3/1B2N2b/1Q1qQ1qR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 Kd6 g4 c5 f4 e5 b4 a5 b6 h5 f6 c4 b7 h3 b5 h2 f5 h4 b6 a4 f7 e4 f6 h3 g5 e3+ Kc3 a3 g6 a2 g7 Ra4 Ne2 Nh6 g8B Ra6 Bb2 Ra4 Nd2 Be6 Ne4+ Kd7 d6 Kc6 d7 Kb5 d5 Nc6 b8Q Bd6 f8N Ng4 b7 Nge5 f7 Nd3 Nf6 Ra6 Ng6 Nc5 f8R Bf7 Qe1 Ka4 Ne7 Qe8 d8R Qd7 Ne8 Bf4 d6 Bg3 Rb1 a1Q Nf5 Qa2 Ba1 Ka3 Rb6 Bf4 Rg1 h1Q Rc8 Qf3 Rh1 h2 Bh3 Qe4 Bg4 Ra8 Rd8 Rh6 Bh7 Re6 Bg6 Qe7 d7 Bg3 Rc8 Bc7 d8B Qd7 Rb4 Bg3 Ba5 Bf4 Rb6 Bd6 Rg1 h1Q Ra6 Bh2 B6h5 Qhf3 Rh1 Qf2 Qc7 Qf1 Qb6 Qg1 Qbb1 Rb8 Rc7 Rd8 b8B Bg8 Rb7 Bf7 Qbd1 Qab1 Bd6 Qb6 Qb1 Qa7 Bdc7 Qe5+ Kc2 c3 Rb8 Qed5 Bf3 Qe5 Bhg4 Qf4 Bd5 Qe5 Bc4 Qe4+ Kc1 c2 Bd3 Qgg2 Bb5 Qg1 Bc4 Ka4 Kb2 c1Q+ Ka2 Qcd1 Kb2 Qf4 Kc3 Qe4 Bb5+ Ka3 Bb2#
1n3K2/4NN1R/bk1rqpQ1/1BqNQ1R1/1brQ1B2/3QB2r/rB6/Q4r1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 a5 h4 g5 e4 a4 d4 g4 b4 g3 b6+ Kb7 h6 g2 d6 c4 h7 c3 d5 a3 h5 a2 b5 c2 d7 f3 h6 f2 d6 Ra5 Nc3 Ra7 Qd3 Ra4 Be3 c1R Nh3 g1R Nf4 Rg3 Ncd5 Qe8+ Ne7 Na6 d8Q Nb4 d7 Re1 Kd6 Ra5 e5 Bg7 e6 Ra6 Nfd5 Rg5 Rh5 Re5 Rg5 Nc6 Qd4 Kb8 b7 Rc1 Qa5 Rc3 d8Q Nf6 Bc4 Ng4 Rh1 f1R Be2 Rg8 h8B a1Q h7 Qc1 Qa1 Bf8 Bg7 Qc2 h8N Rc4 Rh7 Ra2 Qd3 Ree4 Bb2 f6 Nf7 Rh8 Qb6 Ref4 Qbd4 Rd1 Bf1 Nf2 Be2 Nh1 Bf1 Rc5 Be2 Ka7 b8B+ Kb7 b6 Rc4 Bc7 Ka6 b7 Rff1 b8Q Qc1 Qg6 Qc2 Qb3 Nb8 Qbd3 Kb5 Ba5 Ba6 Bad2 Bg7 Bf4 Qg8 Bde3 Bf8 Rg7 Rh3 Rh7 Nc6 Kd7 Nb8+ Ke8 Rd2 Bd1 Qc3 Ba4+ Ka5 Bb5 Qb4 Nc8 Qc5 e7 Rdd1 Kd8 Rd2 e8Q Rdd1 Nce7 Rd2 Nh8 Qe6 Nf7 Rdd1 Qc6 Rd2 Qd6 Rdd1 Q6e5 Rd2 Nc3 Kb6 Ke8 Rh6 Qc2 Rca4 Qdd5 Rh3 Qcd1 Rdd4 Qdd3 Qc7 Qd5e4 Rc4 Q4d5 Qg4 Ng8 Bb4 Ne7 Qe6 Kf8 Qc5 Qd5e4 Rd5 Q4d4 Rd6 Ncd5+
1BbqN1BN/3q1Q2/RN1pn2b/2RN4/2rB4/5QQ1/2q1r1nq/KB1kB2q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 Kf6 h4 g5 b4 a5 c4 e5 Kc2 d3+ Kb2 d2 h6 g4 c5 g3 h5 g2 h7 e4 b6 e3 c6 a4 b7 e2 c7 e1Q h6 Bc5 b5 Be7 b6 Qg3 Nf3 g1Q Bc4 Bb4 Nd4 Qf1 Nb5 Ba5 N1c3 Qe8 Qf3 d1Q Nd5+ Kf7 f6 Ke6 f7 Kf5 f8Q+ Nf6 Qf7 Qfd3 Bd2 Qd8 Be1 Nc6 b8Q Re8 h8N Bd2 h7 Re2 b7 a3+ Ka2 Nd4 Rh5+ Qg5 Bb3 Ra4 Bc2 Rb4 Bb1 d6 Qa7 Ne6 b8B Qd7 Qaf2 Rc4 Q2g3 Bb7 c8B Qc1 Qff2 Ke4 f5 Ng4 f6 Ne3 Nbc7 Ng2 Ne8 Qh4 Rg5 Qh2 Qff3+ Kd4 Re5 Qd8 Bd7 Qf5 Ba4 Qfh3 Bb3 Bh6+ B1c2 Ba8 Nf4 Qh4 Qfg7 Qd7 Bb4 Rc6 f7 Nf8 Be6 Qch1 Be1 Bb7 Q7g6 Rc3 Rc5 Qhd8 Nd5 Bc8 Kb1 a2+ Kb2 Q7c7 Qgh5 Rc4 Qhf5 Ng6 f8N N6f4 Bg8 Ne6 Nd7 Qa7 Qf7 Qb7+ N7b6 Qbd7 Rc1 a1Q+ Kb3 Qaa4+ Kb2 Q2g1 Ra1 Qgh2 Ra2 Qb3+ Ka1 Qba4 Bb1 Qc2 Ne3 Kd3 Ra6 Bf4 Ned5+ Be3 Bf2 Kd2 Be1+ Kd1 Ng6 Q2g1 h8B Bh6 Bd4 Qgh2 Nh8
n1BNQQ2/1RQ3nq/1qB4N/kNbn2r1/2b1rbQ1/3B4/Q2b3p/1KB2R2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 c5 Kd2 Kc7 Kc2 Kb6 g4 h5 b4 a5 g6 f5 d6 c4 d5 a4 d7 a3 d6 a2 g5 h4 g7 h3 e5 f3 e6 f4 e7 f2 e8B f3 g6 h2 Na3 c3 Bd3 f1Q Rb1 a1B Nh3 f2 Qg4 Qe7 d8Q+ Qc7 d7 Ba6 Ng5 Ne7 g8B Rh4 g7 Nf5 Nf7 Bc5 Nh6 Qg1 Be6 f1N g8Q Ng7 Rb2 Ra7 Kb1 Ne3 Qf7 Qf2 Rf1 Nd5 Qde7 Rb7 d8N Nd7 Qef8 Qf5 Rb3 Qh7 Qf2 Qb8 Qa2 Rc7 Bef5 Rc6 Rb2 Rg6 Be6 Rg5 Bef5 Ne5 Bc6 Nc4 Bc8 Qc7 Qh3 Re4 Qg4 Ka7 Rb3 Ncb6 Rb2 Na8 b6+ Kb8 b7 Ka7 b5 Kb6 b8Q+ Ka5 b6 Bc4 b7 Qb6 Rb4 Bb2 Nb5+ Ba3 Qc7 c2+ Ka1 Be3 b8Q Bd2 Qcd7 Bf4 Qbc7 Bd2 Qde8 Bf4 Bb2 c1B Kb1 Bcd2 Bc1 Bc3 Qcd6 Qb8 Nd4 Bcd2 Qde7 Qa7 Rb7 Qc5 Qc7+ Qb6+ Qb3 Be7 Nb5 Bc5 Qa2+
q2NK1B1/1BRrN3/4NBn1/qr2b1rb/1B2B3/2n1Q3/b1Q1bkp1/1N1R3Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 a5 e4+ Kc5 b4+ Kb6 h4 g5 c4 d5+ e6 a4 e5 a3 c5+ Kc7 b6+ Kc6 b7 a2 h6 g4 b5+ Kc7 h7 f6 Kg6 g3 Kf7 f5 e7 d3 e8B d2 c6 Kb6 c7 Kc5 b6 Kd4 e6 Ke3 e7 d4 h5 g2 h6 d3 Bc6 f4 e8Q+ Kf2 Be4 f3 Ba3 Be7 Ne2 Bf6 Bb4 Nd7 b8N Ne7 b7 Ra5 Qc2 d1B Nc6 d2 b8N Nc5 Ned4 Rg8 h8Q Ng6 h7 Be5 Ne6 Na4 Ne7 Nc3 Nbc6 Rb5 Bc4 Bb7 c8B Qa5 Ncd8 Bd5 Ba6 Be2 Bc8 d1R Bb7 Rd4 Bb3 Bc4 Rd1 Rd7 Nd2 Bd5 Rac1 a1Q Nb1 Bc4 Qg7 Qa8 h8B Q1a5 Qh7 Bd5 Qh1 Bc4 Ba4 Ba2 Bf6 Nf8 Bh8 Rg5 Bb3 Ng6 Bc4 Kg3 Bf6 f2 Qeh8 f1B Ke8 Bg4 Q8h6 Bfe2 Bcd5 Bh5 Bc4 Rf5 Qe3+ Bef3 Qce2 Rg5 Nc7 Na4 Bb3 Rg4 Rc4 Rg5 Qc2 Nc3 Rc5 Rd3 Bg8 Rd7 Qeg1 Be2 Ne6 Rd5 Qd4 Rd7 Qdd2 Kf2 Rc7 Rg4 Qdc1 Rg5 Qe3+
BR1q2Q1/2QR2R1/Knr2N2/br1r1R2/1q1q4/nN1bN1B1/5kpR/N2B3q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 d4 Kd6 Kd2 f5 Kc3 g5 Kb4 c6 e4 f3 h6 a6 h5 g4 h7 f2 b6 f4 Ka5 g3 b4 c5 b5 f3 e5+ Kd7 d6 Ke6 d5+ Kf5 h6 Ke4 e6 g2 e7 c4 e8B c3 d7 c2 d6 Qg5 d8N Bf5 b7 Bc8 d7 Be7 Ne6 Qe3 d8R Qc5 Nh3 Ra7 Nd4 Nd7 b8N Ne5 Na3 Rb7 Nb3 Bf5 Rh2 Nf6 Nd7 Nd5 Be2 f1Q Bf4 c1R Nc2 f2 Qe1 Bf8 Qc3 Qh1 Bd1 f1Q Beh5 Qfc4 Ra4 Qc8 b6 Ba3 Rg8 Rb8 b7 Qe8 Rb4 Qd8+ Rb6 Bc5 Rg7 Re8 h8Q Bb4+ Ka4 a5 Rf6 Qc5 Qg8 Nc4 Bf7 Qd6 Kb5 a4 Bg6 Q6e7 Ka6 a3 Qe5+ Kd3 Qc7 a2 Bgh5 Qe4 Bhf3 Na3 Rff7 Bg6 h7 a1Q h8R Ba5 Rh5 Re5 Nf6 Qb4 Rd7 Qad4 Nca1 Be4 Rf5 Rc3 Bg3 Ke3 Nf4 Rc5 Be1 Rb5 Bd2+ Kf2 Bc1 Bd3 Bd2 Nc3 N4d5 Na4 Bf4 Rc5+ Ka7 Re6 Ne3 Ree5 Bc6 Rb5+ Ka6 Red5 Qd6 Rc8 b8R Nb6 Ba8 Rc1 Qc7 Rc6 Bg3+
k2qbq2/1B1Qq1Q1/4rRn1/QB3r2/3K4/B2NN3/2QRpr1n/R1bQqB2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 h5 g4 a5 f4 c5 b4 Kc7 d4 Kb7 f5 e5 d6 h4 g6 h3 f6 h2 g5 a4 b6 a3 b5 a2 d7 c4 g7 c3 g6 c2 d5 Nc6 f7 Nb8 d6 Ra5 Nh3 Qg5+ Nf4 Qh4 d8Q Qh6 d7 Nf6 g8B Nc6 g7 Ba3 f8R Ka8 Nd2 Ne7 Bgc4 Ng6 g8B Qg7 Bge6 Qe7 Nd3 Rh6 Qe8 Bb2 d8Q Ba3 Bb2 c1R Qed7 Rc2 Rg1 h1Q Rg2 Qh4 b7+ Kb8 Bed5 Ka7 Bc6 Ng4+ Ke2 e3 Rf6 e4 Rgf2 Bd6 Ba3 Nh2 Qf8 Be5 Qg7 Bb2 Rg2 Bc1 Rgf2 Kb6 b8Q+ Bb7 Qe5 Ka7 b6+ Ka8 Qec7 Rf5 B6b5 Bc6 Ba6 Ba4 Bcb5 Rb2 Qcc2 Qf4 Rb1 a1Q Nc4 Qb8 Rg2 Qbf8 Rf2 Qa2 Ra1 Qed8 Rg2 Qb3 Rf2 Qbb4 Rg2 Qbe7 b7+ Kb8 Ke1 e2 Ne3 Re5 Kf2 e1Q+ Kg1 Rhh5 Rd2 Rhf5 Kg2 Bb3 Kg1 Bf7 Kg2 Ka7 Kg1 Be8 Kg2 Re6 Kg1 Kb6 b8Q+ Ka5 Qe5 Kb6 Qdc8 Ka7 Qd7+ Ka8 Qec7 Ra2 Qa5 Bb2 Nd5 e3 Kg2 e2 Ne3 Rf2+ Kg3 Nf3 Kg4 Bc1 Kf5 Nh2+ Nf4 Ne5 Ke4 Ng6+ Kd4 Rb2 Nd3 Rb3 Bc5 Rc3 Bb4 Rc5 Ba3 Rcf5 Bb7+
1k1b2NN/1rB3Q1/1RR4N/R2r1Q2/1nNq1Q1q/Kn5p/2B2qNq/1Qr2b2 b - - 0 1 illegal: No possible last move, all moves rejected
3BQRB1/q2n1BbN/nrqR2n1/3Q2NK/4br1B/R1r1N1p1/3r4/Bk1N4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 h4 Kc5 b4+ Kc4 e4+ Kd4 e5 g5 d6 f5 e6 a5 e7 c5 e8B a4 d7 c4 b6 a3 b5 a2 h6 c3 h5 c2 b7 Be7 b6 Qc7 d8Q+ Bd7 h7 Bb4 h6 Qe5 Nh3 Bf8 Bc4 Qe1 Na3 Ne7 Bef7 Qe6 Qe8 Ra6 Nf2 Bg7 d3 Kc3 d4 Rg8 h8N Bc6+ d5 Nd7 b8R Ng6 b7 Rb6 h7 Rf8 Be3 Kb2 Rh6 c1N Nc2 Nb3 Bc5 Qf6 Be7 Nbc5 Ne3 Na6 Ra8 Qc3 b8N Bb7 Bb3 Qc6 Bg8 Rf6 Nf7 Rd6 h8B g4+ Kg2 g3 Kh3 f3 Ng5 f4 Kg4 Re6 d6 Re4 Bbe6 Rc4 Qd5 Rc3 Rf1 a1R Bef7 Ra2 Nfd1+ Kb1 Kh5 f2 Bf6 f3 Bd8 Nde5 Nd7 Rd2 Nf6 Nd7 Ra7 Ba8 Nfh7 Bb7 Ne4 Ba8 Bh4 Bb7 Neg5 Ba8 Rg1 f1Q Rg2 Qfc4 Rf2 Q4c5 Rf1 Bb7 Ra8 f2 Ra7 Ndb8 d7 Qd4 d8B Nd7 Re1 f1R Re2 Nab8 Ra3 Rf4 Rf2 Qda4 Rf3 Qa7 Rf1 Na6 Rf3 Nge5 Rd6 Ng6 Be6 Rfb4 Rf8 Rf4 Bef7 Qc5 Qd4 Be4 Qde5 Qc6 Qd5 Bh6 Bhf6 Bg7 Bd4 Rc4 Bb2 Rc3 Ba1
1QN3Q1/3qb3/3Q1Bnr/nBq1r3/2Qq3R/1N3p2/R2qb2K/RkbBB1B1 b - - 0 1 illegal: No possible last move
7r/bq3nQ1/4KNnB/nqNB2R1/b2RR3/1N1Nkp1n/2B3B1/rQb4N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 d4+ Kc4 e4+ Kb4 g4 c5 d6 a5 b6 h5 g6 c4 g5 f3 d5 Kc5 b4+ Kb5 d7 h4 g7 h3 d6 h2 b7 f4 g6 a4 Qd4 a3 Nh3 f2 Nd2 a2 Rg1 h1N Rg5 f3 Nb3 Ne7 g8B Rh7 g7 Ra7 Bg2 f1N Nf2 c3 Bd5 c2 g8B Na6 b8Q+ Rb7 Ke6 Ng6 e5 Rh8 Bh7 Nfg3 Qc3 Kb6 b5 Qc7 Be3+ Qc5 Re1 c1B Bf4 a1Q Re4 Nf5 Bd2 Nhg3 Nh1 Nh6 Qb2 Qaa3 Qb1 Nb4 Qc7+ Ka7 Be3 Qb2 b6+ Ka6 Bf4 Ra7 b7 Kb5 b8N Ra1 Na6 Nc6 Nb4 Nf7 Nd3 Na5 Be3 Bb7 d8R Bc6 d7 Nh5 Rc4 Ra2 Kf5 Nf6 Re8 Qb6 d8N Qd2 e6 Qe2 e7 Qb7 Ne5 Nh5 Nd7 Nge5 Rg8 Nf4 Rd4 Ra1 Ne6 Nh3 Bh6 Nd8 Rg5 Qc4 Kf6 Kb4 Bf5 Kc3 Bc2 Ba4 Nf4 Ng6 Nd3 Qc5 Qe5 Nf7 Kf5 Qc4 Qg7 Qc5 Ra8 Qcb4 e8N Q4b5 Nef6 Bc5 Re8 Ba7 N7c5 Bf4 Nbc1 Kd2 Ree4 Be3 N1b3+ Ke2 Rh4 Bc1 Ke6 Ke3 Rhe4#
4B1q1/2NQ4/n1K3R1/2NB2bn/RQ3Qnq/Q2prbqk/1r1Rn2B/1R4Q1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 b4 d6 h4 g4 c4 a4 c5 a3 b6 e4 h6 e3 h5 e2 c6 e1Q h7 g3 b5 d3 c7 g2 b7 d2 b6 a2 h6 Bg7 Rh2 Na6 b8Q Nc5 b7 Ra5 Bc4 Qe5+ Kc6 d5 Ne2 g1N Na3 d4 Nc3 d3 Bd5 Ne4 Na4 Qb2 Nc5 Bf8 Nb5 Nh3 Qg1 d1Q Rd2 Qe5 Qa7 Bd6 b8Q Qh5 Rb1 a1N Bb2 Be6 c8B Nef2 Qd7 Nc2 Nc7 Qh4 Qb4 Ra2 Ba6 Qf8 Bb5 Be7 Bc3 Ng4 Ba4 Kf7 f6 Kg6 f5+ Kh5 f7 Qeg3 f6 Rb2 Be5 Nf4 Qa3 Qc8 f8Q Ne2 f7 Bg5 Qfe7 Bf5 f8Q Be4 Qf4 N8f6 Qb4 Rg8 h8R Re8 h7 Bf3 Rg8 Qb8 Rg6 Qd8 Qa3 Nb4+ Kd6 Na6 Kc6 Qc8 Qf8 Re6+ Bd6 Re3 h8R+ Bh6 Rhg8 Bg5 Be5 Qe8 Qd6 Qf7 Ra8 Qg8 Bb5 Qhh2 Qf8 Kh4 Qfb4 Nh5 Qff4 Qhh3 Qff5 Qe1 Qdf7 Bh6 Kd6 Nb8 Be8 Bg5 Ra4 Na6 Q7d7 Qg2 Qfe4 Kh3 Bh2 Qh4 Qf4 Qgg3 Kc6
3nbk2/2b3Bq/1q5R/2qQ1bK1/n3BBRr/N2pRBRN/6Q1/2BQb1r1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Qd2 a5 Ra3 g5 Ke2 d5 Kf3 e5 Kg4 a4 b4 d3 h4 d4 f4 e4 c4 e3 h6 e2 h7 e1B Bb2 Na6 h5 Qb6 c5 Bg7 h6 Ke7 Be2 Qa7 b6 Nb8 c6 Bd7 c7 Bc8 b5 Be6 c8B Be5 Qa5 d2 b7 d1B b6 Bc3 Rh4 Bf7 f6+ Kf8 f5 Nd7 b8B Bc2 b7 Qb6 Nh3 Be8 f7 Ke7 f8Q+ Kd8 f6 Nc5 f7 Bd6 Kh5 g4 Kg5 Be5 Bd6 g3 b8B g2 Bb7 g1Q+ Rg4 Ne7 Rg3 Bg7 Be5 Nc6 Rb3 a3 Rg4 Bb4 Rbg3 a2 Bbd6 Rc8 Na3 a1Q Qa8 Qad1 Qg8 Qdf1 f8Q Na4 Qc4 Be4 Qf3 Qb1 Qcb3 Kd7 Qg2 Nd8 Bf3 Rc1 Qa5 Rf1 Qd1 Be1 Bc1 Bc2 Bef4 Be5 Bf8 Bc7 Bg7 Ke7 Qb5 Bf5 Qbb3 Be6 Qba2 Qe4 Ba8 d3 Bd5 Rg8 h8R Qgc5 Qc4 Rg1 h7 Bb5 Qd4 Rf8 Qe5 Rf6 Bc6 Rh6 Re8+ Kf7 h8R Rh4 Rh6 Qh7 Bb7 Bf5 Qd4 Bc6 Re3 Be8 Bbe4 Ke7 Qe5+ Kf7 Qd5+ Ke7 Bc3 Kf8 Bg7+
1RK2n2/QN6/3N2qQ/1QBR2bn/Q4qr1/BRp3nR/Q2rB1bq/3kn3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 Ke6 h4 f7 h3 d6 c3 g7 Nf6 g8Q Qb6 f5 Rh6 Nf3 Nh7+ f6 Bg7 f8B Nc6 Qa4+ Kc5 Ng5 Na5 b4+ Kd4 Ne4 Bb7 d8Q Nc6 Kd7 e5 f7 Bf6 Qb8 Rg6 Be2 Rg4 Nbd2 Ke3 Nc5 e4 Rb1 a1Q Rb3 Ne7 Ba3 Qf1 Qba7 Nf5 Nc4+ Kf2 Be7 Ke1 f8Q e3 Qh6 Bg2 Nb7 Ng3 Bf8 Qa6 b6 Bg5 b5 Rd8+ Kc7 Nh5 d7 N7f6 Qd5 Nh7 Bfc5 Nf8 Qg8 Be7 Ncd6 Bg5 Na5 Kd2 b7 Qf4 b6 Qd3 b8Q Qg6 b7 Kc2 Rf1 h1Q Rf3 h2 Rh3 Qg1 Qgc4 h1N Qba8 Kd2 b8R Qgh2 Qcb5 N1g3 Nb7 Ke1 Bc4 e2 Bd3 Re8 d8R Kd1 Kc8 e1N Bf1 Re5 Bd3 Rd5 Be2+ Kc2 Ne4 Rd3 Rd5 Rd2 Ned6 Qb4 Q7a6 Bd8 Bb2 Bg5 Qa2 Qf4 Q8a7 Ng7 Q6a4 N7h5 Bc4 Kd1 Bba3 Qgf7 Bf1 Qg6 Be2+
q1nr1k2/2RQ4/b2Q1BQ1/R2NB3/1NbB1QrB/bpN3rB/5qnK/3b4 b - - 0 1 legal: proof: e4 c5 g4 a5 d4 h5 dxc5 f5 gxh5 Kf7 exf5 Ke8 b4 axb4 f4 e5 Kf2 b5 Kg2 d5 a4 g5 c4 b3 h4 g4 a5 e4 c6 d4 a6 g3 f6 b4 c5 b2 f5 e3 a7 b3 c7 e2 f7+ Ke7 f6+ Ke6 h6 e1R h5 d3 h7 d2 h6 Qd7 c6 Re3 Ra5 Qe7 Nc3 b1B Nf3 Kd6 Bb2 Be6 c8Q Ba2 c7 Nc6 Qe8 Re1 c8Q Ne5 Nd4 Re3 Nc6 Rf3 Nb4 Qd8 Ba1 Rb8 a8N Nc4 Nc7 Bb1 N7d5 Bd3 Rh3 Be7 f8B Ne3+ Kh1 g2+ Kh2 Rg3 f7 Ba6 Qcd7+ Ke5 Qg4 d1B Qh4 Kf5 Qf4+ Kg6 Bg7 Rb7 Be5 Qa8 f8Q+ Bf7 Rh4 Rc7 Bf6 Rc4 Bb2 Bc5 Q8d6 Ne7 Bc1 Rg8 h8B Nc8 h7 Rf8 Qee6 Rd8 Bhg7 Re4 h8B Bg8 Rh7 Bf7 Nba2 Ba3 Nab4 Rd4 Bd2 Rc4 Be1 Bg8 Qf3 Rcg4 Qff4 Bf7 Bf8 Bg8 Re7 Bf7 Bf8g7 Kh7 Bd4 Kg8 Bge5 Kf8 Bhf6 Bg8 Qef5 Bf7 Qg6 Be6 Nb6 Bec4 N6d5 Rf3 Bg3 g1Q+ Kh3 Qf2 Bg2 Qe1 Kh2 Qf2 Bgh4 Rfg3 Nba2 Qe1 Bh3 Ng2 Nab4 Qf1 Q7c6 Qf2 Rc7+ Ne7 Qdd7 Nc8 Qcd6+
1k3N2/1bNB1R1q/BR2n3/2q4r/3B1Q2/pKQBNBqb/1Rr1qn1b/1N6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 b4 Kd7 g4 h5 d4 c5 Kd2 Kc7 Kc3 f5 e4 a5 b6+ Kb7 g6 h4 g7 c4 d6 f3 d5 f4 d7 h3 e5 a4 d6 f2 g5 h2 b5 f3 g6 a3 e6 Qg5 e7 Nc6 d8N+ Kb8 e8B Qg3 b7 Nf6 g8B Rh3 g7 Ka7 b8R Qg2 b6+ Ka6 d7 Nh7 b7 Ka7 Be3+ Nd4 Ne2 Nf6 Ra2 Rg3 Rb2 Rg6 Qd3 Rh6 Ng3 Bd6 Nf5 Ng4 Bh7 Rh5 g8B Qg3 Ne6 Be5 Kb4 c3 d8N c2 Bd7 c1Q Nf8 Qc5+ Ka4 Bc7 Bd5 Ne6 Kb3 Bd6 Rg1 h1Q Bd4 Be5 Be2 f1B Ne3 f2 Bdf3 Bh3 Qc3 f1Q Ba6 Nf2 Bhd3 Qe1 Rf1 Qe2 Bg4 Qe4 Bf3 Qh7 Bg2 Ne4 Rf7 Nf2 Bf3 Kb6 Nc6 Kc7 Ne7 Bf4 Bab5 Ra4 Ba6 Rc4 N7d5+ Kd8 Qe1 Rc2 Nc7 Bd6 Ra8 Bf4 b8Q Be5 Ra7 Bf4 Qbb4 Bb7 Qec3 Be5 B7b5 Kc8 Bd7+ Kb8 Rf6 Nd8 Rb6 Ne6 Qa4 Qgg7 Qab4 Bh2 Qbc4 Qg3 Q4b4 Qce5 Qd6 Qef5 Qf4 Qc5 Bc8 Rg5 Ne8+ Re5 Rd6 Ba8 Rf7 Be4 Bd7 Bb7 Nc7 Rh5 Rb6
4Q3/1n1qQ1KB/Nn2R1Q1/B1Q1B1r1/Rqn1bb1p/1b1R1B2/N1Q1rk2/1b6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 a5 e4 h5 d4+ Kb6 b4 c5 g6 c4 g5 a4 g7 f3 d6 h4 d5 a3 g6 f2 d7 f4 d6 c3 Nh3 a2 Bg2 f1B Bf3 c2 Nc3 Ba6 Bd2 c1N Qc2 Nb3 Nf2 Ne7 Kf6 Na5 g8B Bh6 g7 Nbc6 e5 Bc8 e6 Nc4 Nd3 Bg2 Bh7 N6a5 g8Q Nf5+ e7 Nb7 Rhe1 Ra5 Nc5 Nfe3 Qgg6 Re8 Na6 Nd5+ Kf7 Qc7 d8Q Bf5 Re6 Bh1 Qc8 Qd7 Be1 Bg5 Kg7 Bg2 Rd1 a1Q Rd3 Qa4 Na2 Be4 Bc3 Bh3 Be1 Bhf5 Bd2 Ka7 Qc5+ Ndb6 Bg4 f3 Be1 f2 Bf3 Qc7 d7 f1B d8Q Bf4 Qd7 Be2 Bc3 Bd1 Be1 Rc8 e8Q Qd6 Qdd8 Qd7+ Qde7 Rc6 Bc3 Rd6 Be1 Rd5 Bc3 Re5 Rd2 Nbd6 Qcg1 Bd3 Qb3 Re2 Q6g3 Bb1 Qgg6 Bfe4 Rd3 Kb7 Q1g5 Nd5 b6 Kc6 b7 Bc1 b8B Bf4 b5+ Kb6 Qb2 Bb3 Qc2 Qa3 Nc7 Kc5 b6 Qaa4 b7 Rb5 Ba5 Qa3 Re3 Kd4 Na6 Rc5 Bbc7 Rb5 b8R Rc5 Rb5 Ndb6 Q5h5 Nb7 Rb4 Rb5 Ra4 Qb4 Qhg4 Rg5 Qf5 Qe1 Qb5 Qb4 Rc3 Bd3 Be5+ Ke3 Qd5 Kf2 Qb5 Bf5 Rd3 Be4 Qc5+
1R3R1K/nN1bkq1b/2q1RN2/rn2N1Nr/1B3R1p/3Q1b2/Q1BR3q/2b2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 a5 e4 c4 g4 f3 d4 h4 b4 f4 b6 a4 g6 c3 d6 f2 d5 a3 g5 f3 g7 a2 b5 c2 b7 Ra6 d7+ Kf7 b6 Nh6 g8B+ Ke7 g6 Ra8 g7 Ra4 Qd3 Qe8 d8R Qb5 Rh2 Ra8 Ba3+ Qc5 Nc3 c1Q Bh7 Kf7 g8Q+ Ke7 Rd6 Qc2 Bb4 Na6 b8R Qb5 b7 Qe8 Rd1 a1Q Rd2 Ra7 Nh3 Qaa4 Ng5 Qg6 Ne2 Qb2+ Nd4 Bd7 Rc8 Qf7 b8R Nf5 Rh1 Bh6 Rf8 Bb5 Rg1 Bc6 Rg4 Nc7 Rf4 Ra5 Bg6 Ng7 Bf5 Nge6 Bh7 Nd8 Bg6 Qe8 Kf5 Nb5 e5 Ba8 e6 Nc6 Bh7 Qd7 Kg6 Qab3 Nc2 Qc4 Ne3 Nca7 Ng4 Qcc6 Ne5 Qbc2 Nh3 Bg5 Kg7 Bb7 Bf5 Rh5 Be4 Bh6+ Kh8 Qe8 Ng5 Qf7 Qa3 Qa2 Bc2 Bc8 Qh7 Bd7 Qhd3 Qb2 Bh3 f1B Qa2 Be2 Bf1 f2 Rc4 Kf6 e7+ Be6 e8N+ Ke7 Nf6 Bd7 Rf4 Bf3 Bh3 f1B Bg2 B1e2 Bf1 Be4 Rd1 Qd4 Ngf3 Qa6 Rg4 Be8 Rc6+ Nd6 Rcb6 Bh7 Re4 Bf4 Ng5 Bc1 Rd2 Bf3 Rf4 Qc8 Rc6 Qc5 Ra6 Ndb5 d6+ Kd8 d7 Ke7 d8N Qh3 Rc6 Qh2 Rd6 Qc6 Nb7 Bd7 Re6#
b3RR1B/Nq3Rn1/r1q2Nb1/bQ2N3/1BB1R1Rp/KN1q2Qr/4nk2/b7 b - - 0 1 illegal: No possible last move
4Rbb1/BK3N2/1Nr1r1Q1/N4Q2/1nR2B1p/1Rn1Nbqq/k6q/1Nb3BB b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 Kd5 c4 f6 c3 d7 h3 f7 a4 b6 e4 f5 c2 b7 Kb3 f6 a3 g6 e3 g7 e2 Be3 e1B Qf3 c1Q Bg2 h4 Ne2 h2 Qf5 a2 Nec3 Na6 Kc6 Qe8 b8B Nc7 d5 Qd1 d6 Na6 Nd5 Rh6 Bg1 Rg6 Ne3 Qe7 d8N Qe6 Nb7 Rg5 Na5+ Ka4 b4 Qeb3 b5 Qdd3 d7 Rg6 d8N Bd2 b6 Bc1 b7 Be6 Bf4 Nb4+ Kc7 Ne7 b8B Bc4 g8Q Ned5+ Kb7 Ra6 Ba7 Nc3 Qg7 Rh6 Qgg6 Re6 Bd5 Qf1 Bf3 Qh3 Bg2 Bg7 f8N Rc6 Nd7 Bg8 f7 Bf8 Nd2 Ka3 Nb6 Qc2 Rb1 a1Q Rb3+ Ka2 Nb1 Qf2 Bd5 Qfg3 Be4 Qb2 Bg2 Be7 f8R Bc5 Re8 Bf8 Nf7 Qe2 Qh7 Rhe6 Qhg6 Qd2 Bf2 Qc2 Re1 h1B Bg1 Qd2 Rd1 Qdf2 Rd4 Qb2 Be4 Qbh2 Rc4 Bf3 Bd5 Bh5 Bg2 Bf3 Bh1
4r2R/NKB3bB/3B2bR/2QQ1N2/3bpqbQ/n2kr1Q1/R2nRq2/3Q2n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 a5 g4 e5 b4+ Kb6 d4 c5 d6 h5 Kd5 h3 g5 c4 f6 c3 g6 h2 g7 a4 f7 h4 d7 a3 f5 a2 f6 c2 Ba3 c1B Nf3 h3 Nh4 Nh6 g8Q Nc6 Qg3 Bd6 f8R Ng4 f7 Bg5 Re8 Qf6 f8Q Bc5 Bd3 Qf4 Nc3 Nf2 Bh7 Na5 Nf5 Nc4 d8R Ra5 Qh4 Nd2 Qe7 Bf6 Qf8 Kb7 b6 Ka6 Kc6 Bg7 d5 Bd4 Qc5 Be6 Re7 Re8 b7 Bf7 b8B Bg6 d6 e4 d7 Ra4 Re1 h1B Re2 h2 Re6 Nh3 Nb5 Ng1 Bc7 Bf3 Na7 h1Q Rb8 Qg2 d8Q Bg4 Qdd5 Qgf2 Ra8 Bf7 Rh6 Bg6 Rb8 Re7 Rh8 Re8 Rb1 a1N Rb2 Nc2 Ra2 Q4e3 Bf4 Qef3 b5+ Ka5 Bb8 Qf4 b6+ Ka6 Bb4 Na3 b7 Ra5 Be5 Rb5 Ba5 Rb3 b8Q Re3 Bac7 Q4h2 Bb6 Qhg3 Bf6 Qgf3 Qbg3 Qf4 Be5 Rd8 Qcc1 Re8 Bc5 Ka5 Bb6+ Kb4 Bbc7 Rd8 Kb7 Re8 Qb1+ Kc3 Qb4+ Kd3 Bed6 B4h5 Qba5 Bg4 Qac5
2N2n1b/8/nn1rqrRR/1Q4r1/1Qp1q1Q1/2rkNR1B/2B1RKQQ/1b4B1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 g5 a5 b6 c5 b7 e4 f6 a4 f7 a3 b5 c4 b6 e3 f5 a2 f6 e2 g6 h3 g7 h2 Nc3 h4 Ne4+ Kd7 d6 Kc6 d5+ Kb5 d7 h3 d6 Ne7 g8B Ng6 Bh7 Be7 f8R Ra5 f7 Ra4 Kf2 e1N Be3 Rg8 Nf3 Bf6 Nh4 Nf3 Nf5 Qe7 d8R Nfe5 d7 Na6 b8Q Kb4 b7 Qe6 Rde8 Ra3 d8Q Rc3 Ned6 Nd7 Qg4 Bh8 Qdg5 Nb6 Rg1 Bd7 Nc8 h1Q Qh2 Qhe4 b8Q Kb3 Rd1 Kc2 Rd6 a1R Bc5 Rd1 Ne3+ Kb3 Qhg2 h2 Q5f4 h1R Qfh2 Kb2 Qb7 Ba4 Qd7 Kc1 Qb5 Bc2 Bd4 Kd2 Re7 Ne5 Bg6 Ned7 Bf5 Q6e5 Rh6 Rg5 Bd3 Bb1 Bc2 Q5d5 Ree6 Qd6 Reg6 Qde6 Re1 Ra3 Bc5 Kc3 Re2 Rd6 Q4g3 Rhd1 Bh3 Rc6 Qg4 Rdd6 Rd8 Rb3 f8Q Ra3 Qe7 Nf8 Qb7 Rb3 Rd7 Ra3 Rf7 Rb3 Rf3 Ra3 Bd1 Kd3 Qb4 Rc3 Qd7 Rc7 Qdb5 Rf7 Bd4 Rf6 Bb3 Nd5 Ba7 Nb6 Bc2+ Kd4 Kg3 Rgd5 Nd1 Rg5 Bb8 Nd5 Ba7+ Ke5 Bc5 Nb6 Bf2+ Qd5 Ne3 Kd4 Bg1 Qe6 Bb3 Kd3 Kf2 Rc5 Ba4 Rg5 Bc2+
bq1N2n1/R5n1/n2R3q/b1RNN3/k1pQ2rB/BR3q2/1Q1rB2K/n2RN3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 h5 g4 e5 Kg2 c5 d4 c4 d6 a4 g5 h3+ Kh2 h4 f6 e4 f7 e3 f5 e2 g6 e1N f6 a3 b6 Kc6 b5+ Kd7 b7 a2 b6 Kc6 d7 Kb5 d5 Rh7 d6 Qe7 d8N Ra7 g7 Qd7 Nc3+ Kb4 Nd5+ Kb5 Qd4 Ka4 Be2 Qe8 d7 Bb4 f8B Ba5 f7 Nd3 Nf3 Nf4 Rd1 Ne6 Bg5 Na6 b8Q Bb7 Ne1 Ba8 b7 Rh6 Bd6 Rg6 Ba3 Qf8 Bf6 Rg4 Nc6 Qb4 d8N Qb1 f8R Qb4 Rac1 a1N Rf7 Qb1 Qbe5 Qb5 b8R Rd7 Rc8 Qb8 Rb1 Rd6 Ra7 Rd7 Kh1 h2 Rb3 Rd6 Qg3 Rd7 Ne5 Rd6 Kg2 Rd7 Kh3 h1Q+ Qh2 Qe4 Qg2 Qf3+ Kh2 h3 Bh4 Rd6 Rc5 Rd7 Kg1 h2+ Kh1 Ne7 g8R Ng7 Re8 Ng8 Re6 Qf6 Qb2 Qh6 Qe4 Rd6 Qed4 Rd7 Rg3 Rd6 Kg2 Rd7 Rd6 h1Q+ Kf2 Qf3+ Kg1 Rb7 Kh2 Rb3 Qf2 Rd3 Qfd4 Rd2 Rh3 Qf1 Re3 Qf3 Rb3
KnN1rbN1/1Rb1N3/1B1Nb1r1/3q3Q/1p4B1/NR3bR1/n5Q1/QQ1qq1k1 b - - 0 1 illegal: No possible last move
2n4q/RK2b1rb/2n1BQ2/B1B1Q2k/Qp1b2nN/2B2b2/N4r1R/BQ4Nq b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 e5 Ke4 g5 h4 b5 a4 c5 f4 g4 d4 c4 h6 g3 d6 g2 Kd5 e4 h5 b3 h7 b2 a5 b4 h6 e3 a6 e2 a7 e1Q d7 c3 f6 Kg6 f5+ Kf7 Rh2 c2 Bd2 c1N Bc4 Be7 Nc3 b1B Na2 Qf8 d8B Ne2 Ba5 Qg3 Bc3 Nd7 Kc6+ Ke8 d5 Kf7 d6+ Ke8 Be6 Qh4 Qf1 Bd3 Qb1 Nd4+ Kc7 Rb8 a8Q Ne5 Qa6 Qg7 f7+ Kf8 d7 Bb7 Qc6 Ng4 Qa4 Nc6 Kb6 Re8 d8Q Be4 Qd5 Rc8 Qe5 Rc7 Qf6 Bf3 Qe5 Ba6 Qf6 Bd3 Qe5 Bde4 Qf6 Rd7 Qe5 Rd2 Kb7 Rf2 Qf6 Bc5 Qe5 Nge7 Qf6 Rg8 h8B Bd3 h7 Nc8 Qe5 Ke7 f8N Bd6 f6+ Ke8+ Ka8 Be7 Ng6 Qf8 Kb7 Rg7 Qe2 Qh6 Nh4 Qc1 Qe5 Bc2 Ne2 Qh1 Ng1 Qg8 f7+ Kf8 Nh3 g1B Qf6 Rg2 Qe5 Bd4 Ng1 Rf2 Qf6 Bce4 Qe5 Rg6 Bf6 Rg7 h8Q Bh7 Bg5 Rg6 Qhf6 Qh8 Bc1 Rg7 B1b2 Bd8 Qff4 Ke7 f8B+ Ke8+ Bc7 Bg5 Bc5 Be7 Qh6 Kf8 Ba5 Ke8 Nc1 Kf8 Ra3 Ke8 Na2 Kf8 Ba1 Ke8 Bd7+ Kf7 Be6+ Kf8 Bc7 Ke8 Qb5 Kf8 Ra7 Ke8 Ba5 Kf8 Bf5 Kf7 Qhf4 Bd6 Qa4 Be7 Qb8 Kf6 Qfd6+ Kg5 Qf6+ Kh5 Be6 Rc2 Qbf4 Rf2 Q4e5+
qBQ2n1N/k6r/2rN1RR1/3N3Q/p1NNb1R1/b3qRK1/1Qn3B1/2q2qn1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 h5 g4 e5 d4 c5 d6 h3 d5 h2 b6 e4 f6 h4 f7 h3 f5 e3+ Kg3 e2 f6 e1N b5 c4 b7 c3 b6 a4 g5 c2 g6 Bh6 f8R Ra6 f7 Nf3 g7 Ne5 Qh5 Ne7 g8N N7g6 Na3 Qc7 Nc4 Qc6 Ne2 Bg5 Rg1 h1Q Bf4 c1Q Nd4 h2 Bg2 Qd2 Ne7 Qa5 Rab1 Qab5 Rb4 Nf3 Be5 Ra8 Bf4 Na6 b8Q Qa5 b7 Qac5 Rb6 Nb4 Rg8 Nd3 f8R Nde1 Rf1 Q6b5 Rf6 Ng1 Rf3 Nc2 Rg7 Kd8 d7 Ra6 Qa8 Qbc6 b8Q Nf8 Rg8 Bh6 Rg4 Rh7 Rfg6 Qc7 Rbf6 Rc6 Qb2 Qa3 Be5 Bc1 Bf4 Qe5 Qa6 Kc7 d8N Qa1 Nb7 Kb8 d6 Qe3 Nd5 Bf5 Be5 Be4 d7+ Rd6 Qc6 Ka7 Qc8 Rc6 d8N Qaa3 Bf4 Qad3 Bc7 Qf1 Qb5 Bb2 Nf7 Ba3 Qb2 Qfc1 Nh8 Qf1 Bh3 Qfc1 Nbd6 Qg2+ Kh4 Qgf1 Kg3 h1Q Bg2 Qb1 Qc3 Qb7 Qb2 Qa8 Qe5 Qhh6 Qef5 Qec1 Qh5 Qhe3 Bb8+
R1N1QN2/br1Rn1NK/bn6/7p/N2N1Rr1/B4Q1R/Bqnk4/qr3Bn1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 b4+ Kb6 f4 e5 g4 a5 d4 c5 f6 h5 d6 a4 f7 a3 g5 h3 d7 c4 Kf5 c3 Kg6 c2 d5 a2 f5 e4 f6 h2 d6 e3 Qf3 e2 Ba3 c1Q Nc3 e1N Nge2 Bg7 f8N Bb7 f7 Nd3 Nd4 Qe8 d8R Nc6 d7 Ra7 Ra8 Qd8 Nfe6 Nf6 f8N Qb8 d8R Ne1 Rd7 Nd5 Rb1 Rg8 Kh7 a1N g6 Bh8 g7 Nce7 Rb2 Ba6 Rf2 Rc7 Na4+ Kb7 b6 Nac2 b5 Qa1 Rg1 h1R Rg3 Rg1 Rh3 Rg4 Qb3 Nf3 Qc3 Ng1 Rf4 Qc1 Qf3 Qa1 Ng6 Rf8 g8B Rf5 Ngf8 Bg7 Ne2 Bd4 Ng7 Bf2 Be6 Re5 Nd4 Re1 Nc6 Rb1 Na7 Qe8 Bg8 Qf7 Nc8 Qff6 Bf7 Qfb2 Ra7+ Kb8 b7 Nb6 Ba2 Be3 Rd2 Rd7 Ra8+ Kc7 b8N Bc5 Nc6 Kb7 N8a7 Kc7 Nd4 Kd6 Nc8+ Ke5 Nb3 Rb7 Rd7 Nc4 Nd4 Ba7 b6 Rb8 Qh1 Rb7 Rff3 Ke4 Rf6+ Nf3 Rf4+ Ke3 Qg2 Rg5 Qg4 Kd2 Qg3 Ng1 Qf3 Rc7 b7 Rg4 b8Q Rb7 Qe5 Nb6 Qe6 Bb8 Qf7 Ba7 Qe8
5k2/r1R1b2n/qN1B4/BRNnp1NR/5rbK/QQb4b/r1N1B2q/2R3N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 a5 Kf2 c5 g4 h5 d4 h3 Kg3 h2 d6 a4 d5 a3 b6 c4 b7 a2 b5 c3 b6 c2 g5 Be6 f6 Qd7 f5 Qa4 d7+ Kf7 d8B Qc4 d6 Be7 d7 Ba3 g6+ Kf8 g7+ Kf7 Be2 Nc6 b8R Bc5 b7 Ba3 Ba5 Bf8 d8N+ Ke8 Ba3 c1B Bd6 Be7 Qb3 Bd2 Na3 Ra7 Nc2 Nb4 Rc1 Qa6 Kh4 a1R Nf7+ Bc8 Qa3 Ra2 Ng5 Nd5 Ra8 Bc3 b8R Rh7 Rb5 Rh6 Rab8 Rg6 R8b7 Bd7 Kh3 h4 Rc7 Bc8 Kg4 h3 Kh4 Be6 Ne4 Rg3 Ng5 Rf3 f7+ Kd8 f8N Ke8 f6 Bg4 Ne4 Rf4 Nc5 Kf7 Nfd7 Ke8 Nf3 Kf7 Nb6 Ke8 Rhe1 h1Q Ng1 h2 Red1 Qg2 Rd3 h1B Rh3 Nh6 Rh2 Nf7 Rh3 Ng5 g8Q+ Bf8 Qe6+ Be7 f7+ Kf8 Rh2 Kg7 Rh3 Qh2 f8N Bg2 Nh7 Bf1 Nf6 Kf8 Nfe4 Nh7+ Ng5 Ndf6 Qc4 Nd5 Qcb3 Qh1 Kg3 Bg2 Rh5 B2h3 Kh4 Qg2 Re1 Qh2 Rc1
n1Q1Nkr1/R1B5/R1Q1n3/Nb1p3K/2N3N1/q3qQ1Q/1bRbb3/3Br1Nq b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 a5 Kf3 e5 Kg4 d5 b4 g5 h4 a4 c4 d3 f4 d2 h6 e4 c5 a3 b6 e3 h5 a2 c6 e2 b7 e1Q h7 Bd6 b5 Ra3 c7 Kf8 h6 Qee8 b6 Rd3 Na3 Kf7 Be2 Bd7 c8N Bf8 Kh5 g4 f6 g3 f5 g2 Nc4 Bg7 Qc2 d1B N8d6+ Kf8+ f7 Qc7 Bf4 Re3 Rh2 Qec8 Ne8 Qc6 Bc7 Na6 b8N Q6b7 Nc6 Nb4 N6a5 Qa6 b7 Nd3 b8R Bb5 Ra8 Bc3 Ra7 Ne7 Qc1 Rg8 h8N Qce6 h7 Nc5 Bg4 Bda4 Bd1 Bd2 Qc3 Qe4 Qf6 Nc8 Qc6 Qb6 Ra6 Re1 Ra7 Qe5 Ra6 Qd6 Ra7 Ke7 f6+ Ke6 Bc2 Bb3 Kh4 B5a4 Nh3 Bc3 Ng6 Bb2 Qa8 Qf8 h8Q Bc3 Qh6 Qfd6 Nb7 g1Q Qh7 Qg2 Nge5 Bb5 Qh6 Ba5 Ng4 Qh1 Ng1 Qe7 Qh8 Qa6 Qh6 Nb6 Qh7 Kd7 Qd3 Qe2 Qh3 Qf2+ Kh5 Qe3 f8Q Ke6 Qh6 Kf7 Qc8 Na8 Be4 Bd1 Rc2 Bd2 Bf3 Qa4 Qg6+ Kf8 f7 Ke7 Qc6 Ne6 Rb1 a1B Rb3 Qg2 Ra3 Qh1 Be2 Qab3 R3a6 Qa3 Nba5 Bf6 Bf1 Bf3 Be2 Ba1 Bd1 Be2 Q6b7 Bb2 Qc6 Kf8 Ned6+ Kg7 f8Q+ Kh8 Qf3 Kg7 Nf5+ Kf7 Ng7+ Ke7 Nf6 Kf7 Nge8 Kf8 Ng4+
q3R1r1/1rR1N1BK/b2QRb1N/qqRpQN2/1B3B2/r7/2k1B2R/2n1q1n1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 Kg6 a5 b4 e5 h4 d3 c4 d2 f4 d6 b6 a4 h6 a3 f6 a2 f5 Ke3 c5 e4 b7 Ra3 h5 Qb6 h7 Rd3 c6 Qc7 f7 Qa5 h6 Nd7 b8Q Be7 f8B Qa3 c7 Rc3 f6 Rb3 b5 Rb2 f7 Ngf6 b6 Ng4 b7 Qa5 Rh2 Rg8 h8B Nc5 h7 Nb3 Ne2 Kd3 Nbc3 e3 Nd4+ e2 Nd5 Nf2 Nf5 Bf6 Nde7 Nh3 Qe1 d1Q Bf4 d5 Rc1 a1Q Rc5 Nc1 Qc3+ Ke4 Qe5+ Kd3 Qd6 Qda4 Qe5 Be6 c8R Ng1 Qbd6 Q4b5 R8c7 Bc8 b8R Ba6 Rbb7 Rb3 Rb6 Rc3 Rbc6 Kc2 Rb6 Kd1 Rbc6 e1Q Be2+ Kc2 Qd8 Qbb6 Re6 Qbb5 Qdd6 Q1a4 Kh5 g5 Kh6 g4 Bfg7 g3 f8R g2 Re8 Bh4 Bf6 Qa2 Bhg7 Qa1 h8N Q1a2 Bc4 Ra3 Nf7 Qa1 Kh7 Bg5 Qe3 Bh4 Bc3 Bf6 N7h6 Qa2 Ra8 Rb8 Qee5 Rb7 Rb8 Nh3 Nc6 Qab6 Be3 Rb3 Bed2 g1R Bh8 Rg8 Rc8 Ng1 Be2 Qaa4 Ra8 Ra3 Nce7 Q6c6 Rd8 Qe8 Bf4 Qaa5 Bg7 Rb8 Rdc8 Qec6 Rf8 Qa8 Re8 Rb7 Bb4+
1K2Q2Q/2R1RQb1/B1b1n1r1/1p1n4/2Nr1R2/1kNR4/2nBqQB1/Q2qn2q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 e5 Ke4 g5 h4 c5 f4 c4 a4 b6 d4 g4 f6 b3 a5 g3 a6 g2 f5 b2 d6 c3 Kd5 c2 h6 e4 h5 e3 d7 e2 a7 e1Q h7 Qg3 h6 Na6 Kc6 Bd6 d5 Bc5 d6 Qa3 Qd4 Qg3 Na3 b1Q Bd2 c1N Nc4 Qc3 Qf2 Qcc2 Ne2 g1N Nc3 Nce2 Rh3 Nf4 Rd3 Qbd1 Rc1 Ne6 Bg2 Qe7 d8R b5 d7 Bd4 Re8 Nf3 d8Q Bd7+ Kb7 Qh1 Qa5 Qb3 Qa1 Rd8 a8B Qbd1 Rc2 Nb4 Rc1 Bc8+ Kb8 Ne1 Bab7 Nbc2 Ba6 Rd7 Rd8 Rd6 Rd7 Bb7 Rc7 Bc6 Rb1 Kf8 f7 Nf6 Rc1 Rg8 h8Q Nd5 h7 Rd7 Qf6 Be5 h8Q Qe8+ Qd8 Bg7 Qc8 Ke7 f8R Qeh5 Re8+ Kf6 Re7 Qhe2 Qe8 Rd6 Rb1 Rd7 Rb4 Rd6 Na5 Ke5 f6 Rd7 f7 Kd6 Qf6 Kc5 Rf4 Rd6 Nc4 Kb4 f8Q Kb3 Qfh4 Nb6 Rb7 Bh6 Rg7 Rd4 Qf2 Nd5 Rge7 Rg6 Rbc7 Bg7 Qff7
rrn2n1n/kb5R/1BB2q2/bp1QN2r/1B2N1RN/1nKB4/3Q3R/2B3Nq b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 h4 g5 d4 c5 Kd2 Kc7 a4 Kb6 h6 e5 a5+ Ka7 a6 b5 h5 b3 d6 b2 d5 e4 f6 g4 d7 e3+ Kc3 e2 f5 e1R h7 g3 d6 g2 h6 c4 f7 Qg5 d8B Qg7+ f6 Qg6 d7 Bg7 f8N Bb7 Ra4 Qf7 Rh2 Re6 Bd3 Rb6 Qd2 Ne7 Ng6 Nc8 Ne5 Qg6 f7 Qf6 Bc7 Bf8 d8Q Nd7 Rb4 Bd6 Ra4 Nf8 Qd7 Be7 Qd5 Bd8 Rb4 Rg8 h8B Rg5 h7 Rh5 Bd6 Bc7 Bg7 Bd8 h8R Bc7 Rh7 Bd8 Kc2 c3 Rg4 Bc7 Kb3 c2 Nc3 b1N Bh6 Na3 Be3 Nc4 Bb4 N4d6 Ne4 Bd8 Kc3 Bc7 Ne2 g1Q Bec5 Qh1 Ng1 Ng6 f8N Nf7 Be3 Nfh8 Bd4 Nf4 Nfg6 Ne6 Nh4 Nf8 Bb2 c1N B2a3 Nb3 Bc1 Kb8 Bdc5 Rd6 Bd4 Ba5 Bb6 Rd8 Rh6 Bc6 a7+ Kb7 Rh7+ Ka6 Qf2 Bb7 Qd2 Rb8 a8B Re8 Bd8 Ka7 Bc7 Rd8 Bb6+ Ka6 Qb2 Rd6 Nd2 Bc6 Be3 Rd7 Ne4 Ra7 Bg5 Kb6 Qd2 Ra6 Bb7 Raa8 Bf4 Ka7 Be3+ Nb6 Bc8+ Bb7 Bd7 Bc8 Bc6+ Bb7 Bh6 Nc8 Bg5 Qf5 Bd8 Qf6 Bb6+
2B3n1/b3R1NR/1Nq2R2/pQrq1Q1b/rk6/4r1n1/R3R2b/r1BBKB1Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 b4 h5 g4 c5 b6 a5 e5+ Kd7 b7 f5 g6 h4 b5 h3 g7 f3 g5 h2 b6 c4 g6 c3 e6+ Kd6 e7 f4 e8R c2 Ne2 Bg4 Re7 Nd7 b8R Rh3 b7 Rh5 Nd2 Rh4 Ra2 Qc8 Nc4+ Kc7 d6+ Kc6 d5+ Kc5 Nd4 Bh5 Nb6 Qc7 Rbe8 Rc8 b8Q Kb4 Nf5 Ndf6 d7 Qc6 d8Q Ne4 d6 Ng3 d7 Rc7 Re2 Bc5 Qf6 Rc8 d8R f2+ Kd2 f3 Rd6 Re4 Re7 Re3 Qe5 Bd4 Rf6 Qd5 Qe4 Rc5 Qd3 Be5 Qe8 Bb8 Qc8 Ba7 Qa6 Nh6 g8B Qc6 Bf7 Ng8 g7 Qd5 Be6 Qc6 Bg2 f1R Bc8 f2 Qd7 Re1 Bf1 Ra3 Qd5 Ra4 Qdd3 Nh6 g8B Qd5 Bh3 f1R Ng7 Rf3 Qb7 Re3 Bf1 Qc6 Bb3 Ng8 Qbd7 Qd5 Qf5 Qc6 Rg1 h1Q Qa6 Qhg2 Rh1 Qgd5+ Qad3 Bg4 Rh7 Bh5 Bh3 Rg1 Bf1 Rh1 Ke1 Rg1 Bb2 Rh1 Qa1 c1B Bd1 Bd2+ Kf2 Bc3 Bc1 Be5 Qa6 Ne4+ Ke1 Bh2 Qb7 Ng3 Qae5 Rg1 Qeb8 Rh1 Q8a8 Rg1 Qa6 Rh1 Qb5+ Kc3 Bc2 Qd3 Bd2+ Kd4 Kf2 Qe6 Bg2 Ra1 Bc1 Kc3 Bf1 Qd2 Qaf3 Qc6 Bd1 Qdd6 Ke1 Qdd5 Qbd3+ Kb4 Qh1 Nh6 Qa6 Ng8 Qb5+
2b3N1/1rrRNb1q/5n2/pN2R1q1/KRBnb1R1/5kQ1/2R4Q/B1N1b1Bn b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kf6 d4 h5 Kd2 Kg5 Kc3+ Kf6 Kb3 c5 f4 e5 d6 a5 b6 h3 b5 h2 d5 e4 b7 e3 g5+ Kg7 f6+ Kg6 f7 Kf5 g6 Ke4 b6 c4+ Ka4 h4 g7 c3 d7 c2 d6 e2 f5 e1N f6 h3 Na3 Nc6 b8B Nd3 b7 Nce7 Qe2+ Kd4 Be3+ Ke4 Rc1 Qb6 d8R Nf2 d7 Qa6 Be5 Nd3 b8R Nf2 Ba1 Ra7 Rb5 Nh6 g8N Nef5 Rd5 Qe6 Nb5 Bb4 f8N Nd4 f7 Qe7 Ng6 Rb7 f8R Rh7 Rb1 Bd2 Rb4 c1Q Qh5 Qcc5 Bc4 Nhg4 Ne2 Be1 Rg1 h1B Nc1 h2 Rde8 Bf3 d8Q h1B Qh2 Bhg2 Rff5 Nh1 Ref8 Qg7 Qdh4 Qh8 Rdd8 Rhc7 Rd7 Qh7 N6e7 Be2 Rf2 Qg5 R8f5 Bd3 Re2 Bh3 Re5+ Kf3 Reb2 Be4 Rc2 Nf6 Bf2 Bhf5 Rg4 Bg6 Bg1 Bf7 Q4g3+
1B2KBQ1/2b2n2/k2Np3/Q2bNBRr/1qN2rN1/1r2RnQ1/1q6/1QNrn3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 Kc7 d4 Kb6 g4 h5 f4 h3 b4 a4 d6 a3 g5 c4 g6 a2 g7 h2 d5 h4 f6 h3 f7 c3 f5 c2 d7 e6 d6 Ba6 f6 Qe7 d8N Rh6 d7 Bb7 Bf4 c1N Bd3 Rh8 Ne2 Na6 Bf5 Rc8 Na3 Nb8 Re1 h1R Nc4+ Ka7 b6+ Ka6 Nc6 h2 d8N Ba8 b7 Nh6 g8Q Nb3 Qb1 Rg1 Nc1 h1Q Re3 Bg7 f8Q Rf1 Nf7 Nd4 Nfd6 Rc7 Qc8 Bf8 f7 Qg2 Qg3 Qe8 Kf6 Nc2 N6e5 Qa4 Ng4 Nc6 b8Q+ Rb7 Qbc7 N6d4 Qc5 Bg7+ Kg6 Qa5 Qg8 Ne1 f8B Nf7 Be5 Bh6 Kf6 Rb6 Ke7 Bd5 Ke8 Ndf3 Bf4 Qb2 b5+ Ka7 Be5 Qab4 Bf4 Bg5 Be5 Rh5 Bf4 Kb8 Be5 Rb7 b6 Bd8 Bf4 Bc7 Be5 Ra7 b7 Ra3 Bf4 Rb3 Be5 Bb6 Bf4 Ka7 b8N Rf2 Nc6+ Ka6 N6e5 Ba5 Bg5 Rf1 Bd8 Bb6 Bc7 Rf2 Bb8 Bc7 Qd3 Rf1 Rb1 a1R Qd1 Q2a3 Rb2 Qa2 Rg2 Qb2 Qd3 Nd2 Qb1 Rf4 Rg1 Ndf3 Rh1 Rh7 Rh5 Rh8 Rg5 Rh5 Qc2 Rb1 Qe4 Ra1 Qb1 Nh2 Ncd3 Ra2 Qd1 Ra1 Qc2 Rc1 Qb1 Rd1 Nc1 Nhf3 Qa5+
2k3Rr/K7/1R1p1n1n/1Br4b/B2r2R1/2BBNNB1/nN2QqQq/1N2b1r1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 e5 Kc4 h5 b4 e4 g4 a4 f4 d3 g6 h4 g5 e3 b6 e2 Kb5 e1Q c4 a3 g7 h3 f6 a2 f5 d2 f7+ Ke7 f6+ Kd6 b7 Kc7 c5 h2 g6 Rh3 c6 Qee7 Bd3 Qde8 Nf3 Ra3 Bb2 Kd8 Kb6 Qd6 b5 Qb4 Rg1 h1N Qe2 d1R Rg4 Qe6 Bc3 Ne7 g8Q Qf4 g7 Na6 b8R Re1 Ka7 Rh7 b6 Ng6 b7 Rc1 Ra8 Rc2 b8B Qh2 Bg3 Qf5 Rb8 d6 Rb6 Rh8 Bb5 Bd7 c7+ Kc8 Bd3 Be8 Bb5 Be7 f8N Nf2 f7 Qh3 Nh7 Ne4 f8N Ra4 Ne6 Bh4 Nf4 Ne7 Nd3 Qh2 Nb2 Rd4 Nf6 Nb4 Nd5 Nf6 Ne3 Qf4 Qd5 Nf5 g8B Bh5 Bh7 Nh6 Bhd3 Qf2 Nh2 Qe5 Qg2 Qef4 Nf3 Qe5 Be1 Rc5 Bc3 Qf4 Nbd2 Qe5 Rg1 a1R+ Ba4 Re1 Nb1 Na2 Rb5 Kd7 c8B+ Kc7 Be6 Rc1 Bec4 Kc8 Rb6 Qf4 Qh1 Qh2 Rg2 Rg1 Bcb5 Qf5 Be5 Be1 Rg8+ Ne8 R2g4 Qff4 Qhg2 Qfg3 R8g7 Qf2 Bg3 Nf6 Rg8+
1R1NkB1b/3nr2p/2RR1qb1/QK2Bb2/1R2nQ2/1B1n1qB1/1N2N3/n4rB1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Kd3 c5 Kc4 a5 f4 h3 g4 h2 b4 a4 d4 a3 d6 e4 g5 a2 f6 e3 f5 e2 b6 e1Q d7+ Kf7 b5 Ra3 d5 Ra5 b7 Qb6 d8R Ra3 d6 Qf2 d7 Bd6 Qe1 Rb3 Ne2 Qc6 b6 Bc7 Be3 Qg1 Nbc3 Bd6 Rc1 a1N Nd1 Nc2 Nb2 Bg3 Qa5 Qgg2 Bg1 Rf3 Rb1 Qd6 Kb5 c4 Rc1 Na6 b8B c3 b7 Be5 Bc7 Bd4 b8B Na1 Rc2 Qe7 Bg3 Nc5 Bbe5 Ne4 Rc1 c2 Rb1 Qe8 g6+ Kf8 f7 c1N g7+ Ke7 f8R Qg6 Rf6 Nd3 Rd6 Ngf6 g8Q Qh6 Qc4 Re8 Qcb4 Rf4 Rc1 Qf3 Rcc6 Kf7 Bg2 Re7 Rg8 Qf8 d8N+ Ke8 Rg4 Nd7 f6 Bc3 Bh3 Qg7 Rh4 Qh8 Be6 Rf5 Bb3 Qg7 Bb6 Qf8 Rb1 h1B Qd4 Bg2 Qf2 Bh3 Be3 Bg4 Qh2 Bh5 Bg1 Bg6 Rg4 Qe3 Qh6 Rf1 Qg5 Qf3 Qf4 Nb8 Rh4 Bcf5 Rg4 Nd7 Rh4 Qh8 f7+ Kf8 Rg4 Qf6 Rh4 Re6 Rg4 Ke7 f8B+ Ke8 Qg5 Re7 Qc1 Nec5 Rb4 Ne4 Qf4 Bh3 Ka6 Qe6 Rb8 Qf5 Bed4 Nef6 Bd1 Bg4 Na4 Ne4 R1b4 Qg5 Bb3 B4f5 Kb5 Qh4 Nb2 Qg5 Ba7 Bh8 Bad4 Qf6 Be5
R6n/b1Q1pNr1/bkqr3R/5nqR/1B3BQq/K4Q1N/B1Q1R2n/4Qq2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 c5 f4 Kc7 d4 h5 Kd2 a5 Kc3 a4 Kb2 c4 d6+ Kb7 d5 h3 d7 h2 b6 c3+ Ka3 h4 b5 h3 g5 c2 d6 Rh6 f6 Nc6 g6 Nb4 f7 Nc6 g7 Re6 f5 Nb8 f6 Qe8 d8B Re4 d7 Re2 Ra2 Nh6 g8Q Re4 Qe1 Rc4 Nc3 Rd4 Bf4 Bg7 f8Q Nc6 f7 Ng4 Bc4 Rd6 Ne4 Nce5 Ng5 c1Q+ Rb2 Rb8 Ba2 Ng6 Bc7 Nh8 d8R Qcc6 Re2 Bd4 Qg6 Ra8 Qfg7 Qg8 f8Q Qgd5 Nf7 Qg5 Qc2 Rb8 Kb4 a3 Bd2 Be3 Kb3 Ra8 Bb4 Ra6 Qgg8 Rg6 Rdd2 Rg7 Bf4 Bf2 Rd6 Be3 Bb1 a2 Rh6 a1Q Ba2 Qaf6 Rh5 Qh4 Rh6 Qfg5 Rh5 Ra3+ Kb2 Rd3 Rh6 Rd6 Ka3 Kb8 b7 Kc7 b8R Ba7 Ra8 Ba6 Qc8+ Kb6 Q8f5 Rdg6 Qd5 Rd6 Qf3 Qg3 Qc8 Qcc5 Q8f5 Kc7 Re8 Qf2 Ree6 Qf1 Re4 Kb7 b6 Kc6 b7 Kb6 Ra8 Qc7 Ne2 Qc6 Rg1 h1Q b8Q+ Qb7 Rg3 h2 Qbc8 Qc6 Rgh3 Qhg1 Qcd7 h1N R3h5 Qgf2 Ng1 Ng3 Nh3 Nh2 Q5g4 Nf5 Re2 Qfh4 Qc7+
1r1r2B1/pbNn2B1/1n1BN3/Q1q2QBn/1Q2r1Qb/1R2Nn2/q4k2/1RQK4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 f4 c5 d4 e5 g5 h5 b6 c4 b5 c3 g6 h3 g7 h4 f6 e4 b7 c2 f5 h2 b6 h3 f7 e3 f6 e2 Nc3 Qe8 Rb1 Nc6 b8Q+ Kd7 d6 Ke6 d5+ Ke5 b7 Qe7 d7+ Qd6 d8N Bg4 Nb5 Ke4 Nf3 Bc8 Ne5 Nge7 g8Q Qe6 d6 Nd5 d7 Nb6 Nc7 Be7 f8B Qa2 Nc4 Kf3 f7 Ne5 Bg5 c1Q Ne3 Qc5 Qc1 Rh4 Qg7 Re4 Rb3 Bf6 Rg1 h1N Nde6 h2 d8Q Ned7 Qg6 Be7 Bg7 Ng3 f8Q+ Bf6 Qff7 h1R Qfg8 Rhh4 Qf5+ Rhf4 Rh1 Nh5 Bh3 Rb4 Bg2+ Kg3 Bd5 Rfe4 Rf1 Qb1 Kd2 e1N Kd1 Nf3 Re1 Qa2 Bc4 Nf8 Qdd2 Rb5 Qa5 Kf2 Bd5 Bd7 Rg1 Bc6 Rh1 Nfd7 Qbf8 Qca3 Qfb4 Rd8 b8B Bb7 Ne8 Rc5 Bd6 Rcc8 N8c7 Be7 Qgf8 Ra8 Qg4 Rab8 Qff5 Bf6 Nd4 Be7 Bg8 Bf6 Nde6 Be7 Qbc4 Qc5 Qcb4 Bf6 B5h6 Bh4 Bg5 Bc6 Re1 Bb7 Qa1 Qb5 Kc1 Qc4+ Qac3 Qa1+ Kc2 Qc6 Reb1 Qc5 Kd1 Qa2 Qc1
3q2B1/pBBN1rr1/1Q1r1qNb/Q1r3QK/5N1R/2n4Q/n1bb2R1/N2kQ3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 f4+ Ke4 d4 c5 b4 e5 d6 c4 d5 h3 d7 c3 d6 h2 f6 h6 f7 c2 b6 Qe8 b7 Qe6+ f5 Qb3 d8Q Na6 b8N Qa3 b5 Bb7 f6 Nb4 d7 Qb2 b6 Na2 Ne2 Rh7 Kh5 Ne7 g4 Kf3 g5 e4 g6 e3 g7 Be4 g8B Rg7 b7 Nd5 Nf4+ e2 Qa5 Ndc3 d8Q Kf2 Nd2 e1B Nb3 Bd2 Qf3+ Ke1 Qh3 Kd1 Nd7 Bh7 Rg1 h1Q b8Q Qd5+ Qe5 Rb8 Qg5 Rb6 Rg2 Rd6 Qdb6 Qa8 Bd3 Qd8 Ba6 Bd3 Rb1 Qa1 Ba3+ c1R Bb7 Qb2 Na1 Bc2 Kh4 h5 Bc5 Qb5 Rb4 Qa6 Bg1 Qf1 Bh2 Qa6 Kg3 h4+ Kg4 Qf1 Kh5 Qa6 Qhg3 h3 Re4 Be7 f8N Rf7 N8g6 Bf8 Qgf2 Bh6 Qfe3 Rg7 f7 Qf1 Bg3 h2 f8Q h1R+ Bh2 Qa6 Qe8 Rf1 Qh3 Rf2 Nd3 Rf3 Rh4 Rff7 Ndf4 Qf1 Nd5 Qff6 Qee6 Rc6 Bc7 Rd6 Qee5 Rb1 Qee6 Rb5 Ndf4 Rc5 Qe1+
3Qn1Q1/2rQ1n2/1rBR1r1r/kNB2QN1/6bq/1K2bRrQ/3pr1B1/3BR3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 d5 Kc2 Kd7 g4 Kc7 b4 Kb6 f4 h5 f6 e5 g6 a4 c5+ Kb7 g5 e4 f5 e3 c6+ Kb6 g7 a3 g6 d3+ Kb3 h4 c7 h3 f7 h2 f6 e2 Nh3 e1R Bg2 a2 Be3+ d4 Na3 d2 Ng5 Bg4 c8B Bh5 Bd7 Be2 Bdc6 Be7 f8R Rh3 f7 Nf6 g8B Nbd7 g7 Bg4 Rf1 h1R Rf3 Rhf1 Bh7 Rg1 g8Q Re2 Bc2 Bc5 Rc1 Qe7 Rd8 a1R f8Q Ne5 Rd6 Ne8 Qf5 d3 Qf1 Qd8 Re1 Ra7 Bd1 Rc7 Qgh7 Rh6 Qhd7 Nf7 Bf2 Ka7 b6+ Ka6 b7 Be3 b5+ Ka5 b8Q Qe7 Qbd8 Rb1+ Ka2 Qe4 b6+ Rb5 b7 Rf6 Qh7 Rb6 b8Q Rh1 Qg6 Rh6 Nb5 Qf4 Qbc8 Qh2 Qg8 Qh4 Ba4 d1R+ Kb3 d2 Bg1 Bf4 Bc5 Be3 Qh1 Rc1 Qh3 Rc2 Qf5 Rc4 Qcd7 Rf4 Rf2 Rf3 Rff1 Rg3 Rf3 Bg1 Kc3 Bf2 Bd1 Be3 Kb3
Q1NN2Q1/2rr1n1q/nK6/R3Nk1b/Q1b4Q/1Np1Bb2/Q1B5/b1b2BbR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 g4 a5 b4 h5 d4 c5 f4 c4 g5 c3 d6 a4 f6 Ke6 g6 h3 b6 h2 d7 a3 g7 h4 f5+ Kf7 b5 e4 b7 h3 b6 a2 d5 Nc6 b8Q Ra4 d6 Ba6 b7 Rh6 Nf3 Rd4 Qa4 Rg6 Qa7 Rd2 b8N Rd1 Nbd2 Bc4 Nb3 Qe7 d8Q Nh6 d7 Nb4 Nc6 Na6 Qaa8 Rd6 Na7 Rc6 Kd4 e3 Nc8 e2 Be3 e1B Qda5 Bd2 d8Q Rc7 Ne5+ Kg8 f7+ Kh7 Q5d5 Bc1 g8B+ Kg7 Qg2 Kf6 Bh7 Bg7 f8N Nf7 Ne6 Bh8 Qg8 Rg7 Bg6 Rh7 Bh5 Rg7 Bd1 Rh7 Rb1 a1B Nd8 Bg7 Qga2 Bh8 Rg1 h1B Rg5 Bf3 Qe4 Bh5 Qh4 Bb5 Kd5 h2 Kd4 Bd3 Kd5 Rd7+ Kc6 h1B+ Kb6 Bhe4 Rb2 Rc7 Rh2 Bef3 Rh1 Bc4 Rg2+ Ng5 Rd2 Qf7 Rd5 Qg6 Ra5 Rhd7 Qd5 Qh7 Qa8 Kg7 f6+ Kh6 Ng4+ Kg6 Ne5+ Kf5 f7 Bg7 f8Q+ Nf7 Qg8 Bh6 Bd4 Bhe3 Bc5 Bf2 Be3 Bg1 Bc2+
b1b2R2/1Q1r2Qn/2QQ3R/1rp3NB/4n2b/qRB1b2K/B1R5/1R1bN1kb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 Kd6 Kg2 Ke5 b4 Ke4 d4 h5 g6 c5 d6 a5 g5 f5 d5 f3+ Kh3 a4 d7 h4 g7 a3 g6 a2 b6 f2 d6 f4 b5 f3 b7 Qe8 b6 Ra4 Na3 Rd4 Bb2 Ke3 Nc2+ Kf4 e4 Ne7 g8B Bh6 e5 Nd5 e6 Nf6 d8R Nh7 g7 Nd7 b8Q Ndf6 b7 Qa4 Rf8 Qa3 Ne1 Ke3 d7 Ne4 d8R Rd7 Rb1 a1B e7 Bg5 Bf6 Bd4 Ba2 Rg8 Bg2 f1B e8Q f2 Ngf3 Be2 Qg6 Rh8 g8Q f1B Q8g7 Kf2 Qe8 Bde3 Bc3 Rg8 Qdd6 Bd1 Qeg6 Be7 Ng5+ Bf6 Rh2 Kg1 Qe8 Bc4 Bf3 Bd5 Rc2 Be7 Qa7 Bc6 b8R Ba8 Qb7 Rh8 Kg4 h3 Rf6 h2 Rh6 h1B Kh3 Rf8 Bh5 Rf2 Qeg6 Rd2 Qg6f6 Rd4 Re8 Rb4 Rf8 Rb5 Qdc6 Bd6 Qe6 Bg3 Qed6 Bh4 Qbc7 Ra5 R8b3 Rb5 Q7b7
Q2QrR1N/BnRK3B/8/4Qnr1/Q2R2b1/R2n2np/q3Qb1r/N1r2B1k b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 a5 g4 e5+ d6 h5 d4 c6 b4 h3 b6 a4 g5 h2 b5 a3 g6 a2 b7 h4 d5 h3 b6 Qf6 g7 Qh6 f6 Ra4 f5 Be7 f7 Qh5 f8R Qe8 f6 Qg6 f7 Qe6 Be3 Nh6 g8B Bh4 d7 Bf2 d8R Nf5 Ne2 Kf3 d6 Rg4 d7 e4 Na3 Rg5 Bh7 Qb3 Rc1 a1R Nc2 Ra2 Na1 Qb2 Bd4 e3 Nf4+ e2 Qa4 e1N Ng6 Qd2 Rg1 h1N Rg4 Rg8 Nh8 Nhg3 Rde8 Qb2 d8Q Qb3 Re7 Qe6 Rc7 Nd7+ Kb4 c5+ Kb5 c4 b8Q c3 b7 c2 Ba7 Nc5 Rd4 Qe2+ Kc6 Ned3 Qa8 Be6 b8Q Nb7 Rd1 Rb2 Rd2 c1R+ Rc2 Qd2 Rc3 Qc2 Qe7 Qb1 Qbe8 Qa2 Qc5 Bc8 Ra3 Re2 Qe5 Be6 Qcc2 Rd2 Be2+ Kg2 Bf1+ Kh1 Qcc4 Nh4 Qcc2 Bg4 Qd8 Nhf5 Kd7 Be1 Qa8 Rh2 Qce2 Bf2 Rb8 Qb2 f8Q Qa2 Qff6 Re8 Rbc8 Re6 Rf8 Re8 Qfd8
3rn3/3BR3/1bn1r1b1/3N2BN/NNB4k/1pprQ3/2Q1q1BK/2BbRQ1n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 Kf2 h5 Kg3 c5 a4 e5 d4 b5 g6+ Kf6 a5 h4+ Kh2 c4 g4 b3 g7 e4 d6 e3 g5+ Kf7 d7 h3 d5 b2 g6+ Kf6 a6 e2 a7 e1N d6 b4 Ne2 b3 Ng3 Qa5 d8B+ Ne7 g8N+ Kg7 d7 Qc3 Nf6 Kh6 g7 Ng2 g8B Qe3 Be6 Qd2 Nc3 b1B Nfd5 Na6 f6 Nc7 f7 Bg6 f5 Kg5 f6 Kh4 Qc2 Ne8 Na4 c3 Bc4 Rh6 Re1 Qe2 Nh5 Nc6 Rb1 Ba3 f8Q Bc5 Qe7 Bb6 Ra1 Rb8 a8B Ba6 Bf5 Bb5 Qe3 Nf4+ Kh1 h2 f7+ Ne7 f8Q Nh3 Bb7 Nf2+ Kg2 h1R Rb1 Rf1 Kh2 Rg1 Bh3 Rg3 Bg2 Bh7 Bc8 Nh1 Qf1 Re6 Ra1 Bg6 Ra3 Kg4 Ra2 Nc6 Bg5 Ba6 d8N Bb7 Bd7 Bc8 Qc5 Rd3 Qe3 Ra8 Nb2 Bb7 Ra7 Bc8 Na4 Ba6 Nb7 Rd8 Nbc5 Bb7 Na6 Ba8 Bf4 Kh4 Nab4 Ne7 Ndf6 Bf3 Nfd5 Nc6 Bc8 Qd2 Re7 Bd1 Bd7 Qe2 Bg5+
3RQ3/2nN4/qB1rrQbn/RpNN1bN1/B2b1n2/2RQN3/3r3p/kR5K b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 g4 h5 f4 c5 Kf2 e5 Kg2 c4 a4 e4 d6 b3 d7 e3 g6+ Kf6 g5+ Kg7 a5 b2 a6 b6 a7 c3 d5 c2 d6 e2 Nf3 e1R Ra5 h4 Nc3 b1B Bb5 Re6 Nd5 Bb7 Be3 c1N Qd3 Na2 Ba4 b5 Bb6 Ne7 f6+ Kg8 g7 Kf7 g8N Nb4 f5 Bc8 Ne3 h3+ Kg1 Qe8 d8R Rh6 d7 h2+ Kg2 Bc2 Rb1 N8a6 Kh1 Rb8 a8Q Nbd5 Qc6 Bg7 Qcc3 Nac7 g6+ Kf8 f7 Bd4 Qe1 Kg7 f8N Nf4 Nf6 Ng8 Nfd5 Qe7 Qh4 Qd6 Ng5 Qc6 Qf2 Qb7 Re8 Qa6 d8R Rd6 Nd7 Re6 Nb4 Rd6 Nc5 Kf6 Rf8+ Ke5 g7 Rhe6 f6 Nh6 g8Q Bd7 f7 Rc8 Qb3 Bg6 Nbd5 Rb8 Qd3 Rc8 Rde8 Rd8 Qff1 Bc8 Re7 R8d7 Rd8 Ba1 f8N Nh3 Rf7 Re8 Rf2 Rde7 Qde2 Kd4 Nb4 Kc3 Ng2 Re5 Rf7 Red5 Rf3+ Re3 Qf7 Bcf5 Qf6+ Rd4 Nfd7 Nf4 Qa2 Bb2 Qaf7 Ba1 Qe8 Bb2 Rf2 Ree6 Ne3 Ba1 Rg2 Bb2 Rg1 Ba1 Rc1+ Kb2 Nbd5 Ka2 Rb1 Rd2 Qd3 Bd4 Rbc1 Kb2 Rc3 Ka2 Ra1+ Kb2 Rb1+ Ka2 Rb4 Ka1 Rb1+
1QB2rn1/1n2R2k/K2p1Nbr/5q2/2prQ3/N3B3/QBb2B2/R1bnB1RQ b - - 0 1 illegal: No possible last move
5Q1Q/4b2p/q1b3Nn/Brp3n1/4Q3/1r1NRBN1/rRK1NQ1b/Q4Rnk b - - 0 1 illegal: No possible last move
BRN5/1b1NBRr1/1b3Q2/1n1R4/1q1k1bB1/NR1pr2Q/q2p2Nn/4R1Kn b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 c4 Kf6 b4 Ke5 f4+ Ke4 Kf2 a5 h6 g5 h7 e5 h5 d5 c5 g4 h6 d3 b6 d4 c6 a4 b5 d2 b7 a3 f6 a2 f5 d3 c7 Bd7 c8B Ra3 f7 Na6 b8R Nc5 b6 Rb3 b7 Ba4 f6 Bc6 Nh3 g3+ Kg1 g2 Nf4 Qb6 Rh5 Ne7 Qg4 Kd4 Qh3 e4 Re5 e3 Ba3 e2 Bg4 e1N Bfe2 Nc8 Bef3 Ne4 Be7 Rb5 Na3 Rg8 h8Q Ncd6 h7 Bh6 f8N Ng3 f7 Nh1 Nd7 Rg7 f8R Rd5 Rb1 a1Q Rf7 Qa2 Rb3 Rc5 Re8 Nb5 b8R Bb7 Qf8 Qa5 h8N Qb4 Nhg6 Rc6 Qh8 Re6 Bc6 Bg5 Q8h4 Bh6 Qf6 Bg5 Nh4 Bh6 Nd5 Bf4 N5b6 Bg5 Nc8 Bf4 Rc5+ Re5 Qe6 Re3 Re5 Ng3 Qf6 Nf3+ Kf2 g1B+ Kg2 Ba6 Ba8 Nh1 Kf1 Bf2 Ng2 Bb7 Nb1 Bh4 Na3 Nh2+ Kg1 Bhg3 Qg6 Rf3 Re1 Re3 Qgh6 Bc7 Qg5 Bge5 Qf6 Bb6 Rg8 Rh7 Rg5 Rg7 Rh5 Ke4 Rg5 Bf4 Re5+ Kd4 Rd5+
1RN3Nb/1NB2Bq1/k2N3b/2NQn2Q/1QQ3r1/1p2rR2/1KRpb1n1/6nq b - - 0 1 illegal: No possible last move
r6R/nQBR4/4nR2/K1b2QN1/QQ1qRB1p/1B3pq1/NQ2b3/3brkn1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Ke7 e4 Kd6 b4 Ke5 d4+ Kd6 Kd2 f5 Kc3 h5 b6 a5 b5 c5 e5+ Ke7 e6 Kd6 g6 f3 g7 f4 e7 f2 e8R f3 g5 a4 b7 c4 Kb4 c3 b6 a3 g6 a2 Bc4 f1B Nh3 c2 Nc3 Ra7 Ng5 Rh6 Re4 Ne7 g8Q Na6+ Ka5 Bf5 b8Q+ Qc7 g7 B1h3 Qf7 Nc8 g8Q Re6 Bb3 Ra8 Qh8 Na7 Qb7 Nc5 Bf4+ Re5 Rb1 a1Q+ Na2 c1N Qff6+ Be6 Qf5 Bf1 Qc2 Be2 Rh3 Kd7 d6 Qb2 d5 Qd4 Rh1 h4 Rd1 Be7 Qb2 Bf8 Qh5 Be7 Qhg4 Bf8 Rd3 Bd1 Rd2 Ne2 Rc1 Ng1 Rd3 Ke8 d7+ Ke7 d8B+ Kd6 Rc2 Bf7 Rdd2 Ne6 Rc6+ Kd7 Rd3 Bc5 d6 Bg6 Qa6 Qb8 b7 Bf7 Qc4 Be8 Ra6 Bg6 Bb6 Kc6 Qb4 Qc7 b8Q Bh7 Ba4+ Kd5 d7 Bg8 d8R+ Qd6 Q4a3 Kc4 Bc7 Bf7 Rb6 Be8 Qb7 Bb5 Rh8 Ba6 Rd2 Bb5 Rg2 Ba6 Bb3+ Kd3 Qa4 Bb5 Rge2 Ba6 Qba3 Bb5 R2e3+ Kd2 Rc6 Bbe2 Qb2+ Ke1 Rd3 Kf1 Ra6 Qf2 Qab4 Qg3 Rb6 Qd8 Rd7 Qf6 Red4 Re3 Re4 Qd4 Rc6 Ba6 Rb6 Re1 Rbd6 Bae2 Qa4 Ng7 Rf6 Ne6 Bd2 Kf2 Re3 Qd5 Qgb4 Kf1 Re4 Qd4 Bdf4
3RNQ2/2BrQQ2/qb1Q2RR/4n1QR/N1n2qp1/2k1q1Nn/3p2bK/4rB2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 Kf6 Kf2 a5 Kg2 e5 c4 d5 b4 g5 h6 e4 b6 d3 c5 a4 h5 a3 c6 d2 h7 e3 c7 e2 b7 e1N+ Kh2 a2 b5 d4 h6 d3 b6 g4 Ne2 Na6 b8R Bd6 b7 Nc5 Qb3 d1Q Ng3 Ne7 Nc3 Rf8 h8R Re8 h7 Nc6 Na4 Qf3 Be3 Be6 c8N Nd7 Bb6 d2 Bc7 Bc5 Nd6 Qe7 Rd8 Ra7 b8Q Ng2 Re1 Bd5 Re6+ Kg7 Q8b4 a1Q f6+ Kg6 Qb6 Nde5 f5+ Kg5 f7 Kf4 f8Q Na5 f6 Nac4 Qc6 Bb6 f7 Qf6 Rg8 Qe3 h8Q Kf3 Rg6 Nf4 Qd7 Nh3 Qh5 Qf4 Qfe7 Kf2 f8Q Bg2 Qhh4 Ke1 Qd3 Kd1 Qhg5 Kc1 Qd5 Kc2 Rh6 Qaa3 Reg6 Qa2 Qdf7 Qa1 Nc3 Qa6 Na4 Rb7 Qee6 Re7 Ne8 Ra7 Qdd6 Kb3 Bb8 Rad7 Bc7 Kc2 Qef6 Re6 Qf6e7 Kb3 Nc5+ Kc2 Rh5 Kc3 Na4+ Kc2 Qc6 Nd3 Be5 Qef3 Rh7 Ng1 Bc7 Re1 Qcd6 Q3e3 Rhh6 Nde5 Qdd5 Nh3 Qdd6 Nf2 Kg1 Kb3 R1h4 Nh3+ Kh2 Kc2 R4h5 Kb3 Nc5+ Kc3 Na4+
1kr1R1q1/N6q/1B1KN1nR/Q5bQ/b1r1p1Br/R1BN3p/2nb2R1/5R1N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kc4 c5 b4 Kc7 f4 h5 d4 e5 g4 h3 d6+ Kb7 Kd5 c4 b6 h4 b5 a4 g5 c3 d7 e4 f6 c2 f7 a3 f5 h2 g6 a2 f6 Bd6 f8N Bc7 g7 Ra6 f7 Rh7 Nf3 Qg5+ Ne5 Qg3 d8Q Ra8 Qh5 Nc6 Nd3 Kb8 b7 Qe3 Be2 Ra6 Nd2 Qg3 Bg4 Qh3 Bb2 c1R Nf1 Nh6 g8R Bb6 Ne6 Ne7+ Kd6 Rh8 f8R Ra8 d5 Be3 Bc3 Ng6 Ng3 Qg2 Qa5 Bg5 Rff1 Rh7 Re8 Rc2 Rhg1 h1Q Rh8 Qhh3 Nh1 Rc1 Bf5 Qgg4 Rg2 Bd2 Re8 Qg5 Rh8 Ng4 Re8 Ne3 Bg4 Nc2 Rh8 Rg7 Rh6 Bd7 Kc5 Qf4 d6 Rh7 Kd5 Be8 d7 Qf8 d8B Qg8 Kd6 Bc6 Bb6 Bd7 Rb1 a1B Rb3 Rh8 Ra3 Bc6 Bb4 Bf6 Bc3 Bfg5 Rh7 Qg7 Qh6 Na1 Bc5 Qg8 Nd4 Ra7 B3b4 Rc4 Bc3 Be8 Bb6 Bc6 Bd8 Ra6 Bc7+ Ka7 b8R Nf8 Ne6 Nc2 Re8 Ng6 b6+ Kb7 Bd8+ Ka8 b7+ Ka7 Bc7 Ba4+ Kd5 Qh2 b8N Kb7 Nc6 Ra8 Na7 Rc8 Bd8+ Kb8 Bb6 h3 Qh4 Qc7 Qh6 Qb7+ Kd6 Qbf7 Rg7 Rh7 Qh4 Rh6 Rh7 Rh5 Rh6 Qb7 Bd1 Qbh7 Qg4 Rh4 Qh5 Rc7 Be2 Rc4 Bg4
nKQb4/7R/1B1kn2N/1N5p/qR1B2N1/Nr1q1bRp/1R1qrQB1/3r1N2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 c4 b4 c3 d4 a4 b6 h6 f6 c2 d6 a3 Kd5 e4 g5 e3 g6 a2 f5 e2 b5 e1R f7 Qc7 b7 Na6 b8R Qa5 f6 Qb4 b6 Re6 b7 Re1 g7 Nc5 Qg4+ Ne6 Na3 Ra7 Nf3 Re3 Nh2 Ra8 Bg2 Rh7 Bb2 c1Q Nf1 Be7 f8Q Re1 f7 Rd1 Ke5 Qa5+ d5 Rd2 Bd4 Nf6 g8N Ne8 Nf6+ Kd8 d7 Kc7 d8N Nc5 d6+ Kb6 d7 Kc7 Qgg8 Rf2 Ng4 Qc4 Rb1 a1Q Rb3 Qab4 Rg3 Ne6 Nc6 Qac3 d8N Qd2 Na7 Qcd3 N7b5+ Kd7 Qh8 N8c7 Qf6 Rg7 Qh8 Qbb3 f8B Qa4 Nf7 Bd8 Bfc5 Rh7 Bb6 Re2+ Re3 Ra7 Qf2 Na8 Kd5 Ke7 Kc6 Rg7 Rg3 h5 Rh2 h3 Nfh6 Rf7 Qg8 Rf3 Qh8 Nac7 Ra8 Ra6 Ra7 Na8 b8R+ Bd7+ Kb7 Ra5 Nc7 Rd5 Ncb5 Bc6+ Kc8+ Rd7 Rc7 Rfe3 Rbb7 Bf3 Kb8 Qh7 Rc4 Rb3 Rb4 Qhd3 Qg8 Nec7 Qc4 Ne6 Qc8 Re1 Nc3 Kd6 Ra7 Re7 Rb7 Re8 Rh7 Rd1 Ncb5+ Kd5 Na7 Nec7 Rh1 Rc1 Nfh2 Re2 N7b5 Ne6 Re1 Ra1 Nf1 Rab1 Rc1 Ra1 Rc2 Rd1 Nc7+ Kd6 Rb2 Kc6 Ncb5+ Kd5 Nc7+ Kd6 Ncb5+
3Rbq1b/B1N3Q1/B6q/1n1B1p2/K2Qnp2/1Q2R2r/2bRq2R/2BkNR1r b - - 0 1 illegal: No possible last move, all moves rejected
kqrBR1RN/n2q4/4RnKp/1R2q1QB/rp1B3R/2n4b/8/QB1Nb1Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 c5 Ke4 Kc7 f4 b5 g4 Kb7 d4 e5 a4 b3 a5 c4 d6 b4 d7 c3 g6 b2 f6 h6 Kf5 c2 f7 e4 d5 e3 g5 e2 a6+ Ka7 g7 e1Q g6 Qde7 d6 Qd2 Ne2 Nf6 g8Q Nh7 g7 Qc3 Kg6 Qee3 d8Q Qed3+ f5 Qc6 Nbc3 b1Q Nf4 Qd4 f6 Qe5 d7 Qeb5 Bb2 c1N+ Bd3 Qd6 Rh4 Qd4 Ra5 Qa2 Bb1 Qbc4 Rb5 Bc5 f8R Qd6 Re8 Qf1 Re6 Qad5 f7 Q6e5 f8R Ne2 Rfe8 Nc6 Qg5 Nf6 d8B Qd7 Qe1 Bd4 Nd1 Bf2 Bc3 Qh1 Ba1 Qh2 Bd4+ Qc5 Qc3 Be1 Qa1 Nc3 Qg1 Qb6 Qg5 Kb8 a7+ Kb7 Qf7 Qe2 g8R Qe5 Qg7 Qe7 Rd6 Bh3 Re6 Qd7 Qg1 Rc8 a8B+ Kb8 Qe7 Na7 Bf3 Rh7 Bh5 Ka8 Qc5 Qbb8 Qd5+ Qc6 Qdg2 Rhc7 Qg5 Qd7 Nd5 Rc5 Ne7 Rd5 Nf5 Rdc5 Nd6 R5c6 Nf7 Ra6 Nh8 Ra3 R8e7 Ra4 Ree8
qB1nB2B/1QQ2R1Q/rR1n2p1/qn3N1Q/1br1p3/4KQ1N/r3N1k1/4Bb2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 h4 Kf6 b4 Ke5 d4+ Ke4 f4 c5 h5 e5 b6 a5 f6 a4 d6 g6 b5 g3 f7 g2 d7 c4 b7 a3 h6 a2 f5 c3 h7 c2 b6 Nf6 d5 Ra7 d6 Ne8 f6 Nc6 b8Q Bg7 f8N Ne7 b7 Nc7 f7 Nc6 Bd2 c1R Be1 Rc5 Ne6 Ra3 f8Q Qh4 d8Q Qe7 d7 Qe8 Nd4 Ra6 Qde7 Bf6 d8Q Bh3 Qed7 Be7 Kd2 Rc3 Bb5 Rc4 Qg8 Kf4 Nc3 e4 Rb1 a1Q Qgd5 Rf8 h8B Qa5 Q1h5 Rf5 Qf7 Qg8 Qa8 Ne8 Q8c7+ Bd6 Qfh7 Qd5 b8B Nd8 Qdf7 Qb7 Qa7 Qa8 Qab7 Rf6 Ngf3 g1N Ng5 Ne2 Ba4 Rf5 Rb6 Bg2 Rh2 Bf1 Rf2+ Kg3 Ke3 Rd5 Rf3+ Kg2 Nh3 Bb4 Bd7 Nd6 Be8 Rf5 Qf8 Rd5 Rf6 Rf5 Qfh6 Rd5 Nf5 Rd2 Rf7 Ra2 Qf4 Nd4 Ne2 N4b5 Qff3+
b3nn1q/QrNR1R2/2p2BnB/Q1BBr2Q/5qQN/p2K4/2r1R3/Q3b1k1 b - - 0 1 illegal: No possible last move
1NrQ3B/2Q1b3/1p1r2rQ/2q4R/1BR1nbk1/2Qb3n/Kp2NBq1/2Q2B1R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 d4 Kf6 Kd2 c5 Kc2 g5 Kb3 e5 a4 g4 h4 b6 h6 g3 h7 c4+ Ka2 g2 h5 e4 h6 e3 a5 e2 a6 e1B d6 c3 d7 c2 a7 Bg7 d5 Qc7 d8Q+ Ne7 d6 Bb7 d7 Be4 Nf3 g1Q Rh5 Qcc5 Nd4 Bd2 Qc7 Qc3 d8Q Bd3 Nc6 Rg8 h8B Nd7 h7 Qh1 Nb8 Qc5 Nc3 Qhg1 Ne2 Qg2 Ba3 c1R Bb2+ Qe5 Bd4 Rc6 Qc1 Nc5 Bf2 Ne4 Rb1 Rd6 Ra1 Kf7 f6 Ke6 f7 Qc5 f8Q Bf6 Qh6 Nd5 f5+ Ke5 Rb1 Nf4 Ra1 Nh3 Rb1 Bg7 f6+ Bg5 f7 Kf5 f8B Kg4 Be7 Be5 Qe1 Qc1 Na6 Bb5 Bg7 Nc5 h8Q Rc8 a8R Re6 Nb8 Bd3 Ra4 Bef4 Bd6 Ne4 Bdf8 Qg1 Bg2 Bf6 B8c5 Be7 Qd1 Qe3 Qc2 Qh2 Rh1 Rd6 Bf1 Qg2 Qc1 Qd4 Be5 Qe3 Ba1 Rgg6 Qhb2 Qd4 Qa3 Qe3 Bh8 Qd4 Qac3 b3+ Kb2 Qe5 Rc4 Qd4 Ka1 b2+ Ka2 Qd5 Ba3 Qc5 Bb4
4knNB/K4n2/1p1q2r1/1q1b1q1p/Qr2bN2/N3RQbR/R2Q2R1/R2N3B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 e5 Kd3 c5 Kc4 h5 Kb5 b3 f4 e4 d4 b2 a4 e3 g4 c4 f6 e2 g6 e1Q f5 b6 a5 c3 f7+ Ke7 g7 c2 a6 Qe6 a7 Qe4 f6+ Kd7 d6 Qg6 g5 Rh6 d5 Ne7 g8N Na6 Bg2 Rb8 a8R Rh7 Rh3 Qe8 Bh1 Qe4 g6 Nf5 g7 Q8e6 Na3 b1B Ne2 Qe3 Nc3 Nc5 Bb2 c1Q Qa4 Bb7 Nd1 Be7 f8Q Rc8 f7 Be4 Ra7 Rc6 Qa8 Bd8 f8N+ Ke8 Ng6 Qcd2 Nf4 Nh6 Ra6 Qf5 d7+ Kf7 d6 Bc7 d8R Nd7+ Be5 Nf8 d7 Rg6 Re8 Qd6 d8Q Bbd5 Ra5 Qg1 Ka6 Qf1+ Ka7 Qc4 Q8c6 Qb5 Qc3 Rg4 Qf3 Rh8 Ne7 Rh7 g8R Rhg7 Ra6 R7g6 Bh8 Re6 Rg5 Rg6 Ng8 Rh4 Rg2 Rhg4 Re5 Rh4 Ne6 Rhg4 Qg5 Ke8 Qd2 Nf7 Ra2 Bb1 Ra1 Rb4 Re3 Bbe4 Nf4 Bd8 Rc3 Bh4 Re3 Bg3 Qac2 Rg5 Nb1 Nh7 R6a2 Rg6 Qa4 Nf8 Na3
1Bq3Qn/1qRbNrrn/1p6/3NB1pB/3N1b2/7Q/n2kr1QQ/RKNN4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 f4 Kf6 d4 e5 Kd2 c5 Kc2 g5 h4 e4 h6 c4 a5 b6 h5 c3 h7 e3 d6 e2 a6 e1Q d7 Qf2+ Qe2 Qc7 d8B+ Be7 d5 Qd6 h6 Bb7 a7 Ba6 Bc7 Qe6 d6 Bb5 d7 Nc6 d8N Qc5 Qg2 Qee3 Be2 Qce5 Bh5 Rb8 a8N Qh3 Bb2 Bc5 Ne6 Rf8 Nd4 Qe7 Bb8 Nd8 Nc7 Bd7 Nge2 Rf7 Nc1 Bd6 Re1 Rg7 Re5 Nf7 Rc5 Qf3 Rc4 Qb7 Rc6 Qf8 Rc4 Ne5 Rc6 Ng6 Nd5+ Kf7 f6 Qfc8 f5 Bf4 Rc7 b3+ Kd3 c2 Nbc3 Bd6 Nd1 Bf4 Ba3 b2 Bd6 b1R Be5 Rb4 Kc3 Rc4+ Kb2 Rc3 Ka2 Re3 Kb2 Re2 Ka2 Kf8 f7 Nf6 Kb2 Rhg8 h8Q Nh7 Nf6 Ke7 f8N Rf7 Nd5+ Ke8 f6 Rgg7 Qg8 Nh8 Ng6+ Rf8 f7+ Kd8 Ncb3 c1N+ Kb1 Na2 Nc1 Ba4 Rc4 Kd7 Nge7 Bc6 Nc2 Ba4 Rc7+ Ke6 Qh2 Bd7 Qg2 Rd8 f8Q+ Rf7 Ng6 Kf5 Qa3 Rg7 Qag3 Rf8 Q3h2 Nf6 h7 Rff7 Qgh3+ Ke4 Nge7 Bg4 Qf1 Bf5 Nd4 Bd7 Ncb3 Kd3 Nc1+ Kd2 Qfg2 Ng6 h8Q Nh7 Qe8 Be6 Qhg8 Nh8 Qgh3 Bg4 Qc6 Bd7 Qc2+ Ke1 Qe4 Kd2 Qeg2
1r2Rnkq/1NNB3n/pB1K4/Q1N2qN1/B7/N1r2p2/1RQb1qbr/2BR4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 f5 Kf3 Kf7 h4 g5 d4 c5 b4 c4 e4 c3 e5 c2 d6 Qc7 e6+ Kg7 h6+ Kh7 d7 Qe5 d8N Qg7 h5 Qe7 d5 Qd6 e7 Qc7 e8B Bc5 d6 Bd4 b6 Bf6 b5 Be7 b7 Nd7 b8N Bf8 b6 Qc4 b7 Qb5 Bh3 Qe5 Na3 Nb6 d7 Qb2 Na6 Bb4 b8N Nf6 Nc7 a6 Nb7 Bd2 d8B Kg8 Rb1 Nh7 Nd7 Rb8 Ndc5 Nd7 Qe1 Qg7 Rb2 Ndf8 Ba4 Bd7 Bg4 Bc6+ Qe4 Qd4 Nh3 Qe5 Rd1 Qd4 Kg2 f3+ Kg3 f2 Kf3 f4 Bd7 f1Q+ Kg4 Qe2+ Kf5 g4 Ng5 Qf1 Qg2 Qdf2 Ke5 g3 Kd6 Bd5 Qe4 g2 Qc4 g1Q Qc3 Nf6 Qa5 Qh1 h7+ Kg7 Ncb5 Bg2 Bb6 f3 Nc7 Qd3+ Kc6 Qf5 Kd6 Rg8 h8R N6h7 Nge4 Kf7 h6 Rg3 Rg8 Rh3 Rh8 Rh2 Rg8 Ng6 Re8 Ngf8 Ng5+ Kg8 Nd8 Bc3 Ndb7 Be1 Bf4 c1R Bd2 Rc3 Bc1 Nf6 h7+ Kg7 Nge4 Bd2 h8Q+ Kf7 Qh4 N6h7 Ng5+ Kg8 Qd4 Qhe1 Qd3 Qee5+ Kc6 Qed4 Qc2 Qh8 Kd6
1QRB4/N1nR1BR1/pN4Br/b2b1bqn/rQB1kB2/4p3/4q1NK/q6R b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 b4 Kd7 g4 Kd6 f4 e5 Kf2 h5 Kg3 c5 d4 e3 f5 e4 f6 h4+ Kh2 a6 g6 e2 f7 e1Q b6 c4 b7 h3 b5 c3 g7 c2 g5 Qf6 g6 Bg4 b6 Bf3 Bd3 Be2 Bf4+ Qe5 Nf3 c1Q Qd2 e3 Qb4+ Qc5 Nh4 Rh7 Na3 Nh6 g8B Bd1 g7 Bc2 Bg6 Qe2+ Ng2 Nc6 b8R Rh8 b7 Bf5 Rc8 Na7 Rag1 Nb5 b8Q+ Nc7 Nb5+ Ke7 d6+ Kf6 d7 Ng4+ Kg3 h2 d8R Rh6 d5 Qa1 d6 Be7 Rd7 Bd8 f8N Qd5 Qa7 Rb8 B8f7 Rb7 g8B Rb6 Bg5+ Ke5 Qb8 Nf6 Na7 Qc5 Bc4 Ke4 Bf4 Rb5 B8f7 Ra5 Re7+ Qce5 Nd7 Ra4 Nb6 Nh5+ Kh4 Ne6 d7 Bc7 d8B Qb5 Nd5 Ba5 Rd7 Nc7 Nb6 Qbe5 Ne1 Qd5 Rg4 Qde5 Kh3 Qf6 Ng2 Qg5 Rf1 h1B Kh2 Qd3 Ne1 Bf3 Rh1 Qc2+ Ng2 Qe2 Re7+ Kd4 Rg3 Bd5 Rd7 Ke4 Bh7 Qe7 Rg7 Qg5 Bhg6
1kN1b2n/3pq1r1/2RQ4/2K1B1NQ/Q2B1R2/1q1Q3R/3pr2b/nBQ1Br1b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 e5 Kd3 h5 Kc4 a5 b4 e4 g4 h4 f4 e3 g6 h3 f6 d3 b6 h2 f5 d2 f7+ Ke7 f6+ Kd6 g7 a4 b7 Kc7 g5 a3 g6 a2 b5 e2 b6+ Kc6 Na3 e1R Nb5 Re2 Nf3 Ra6 Bb2 Bc5 f8R Bf2 f7 Qc7 Rc1 a1Q Ng5 Re7 Bd3 Qd8 Qh5 Rh7 Nd6 Re2 Bd4 Nh6 g8Q Ra2 g7 Na6 b8B Qc7 b7 Rh8 Qh7 Rb2 g8Q Nb4 c3 Qa7 Bb1 Nc2 Qd3 Qab6 Qgg6 Rb5 Qge4+ Rd5 Ba7 Rh7 b8B Bb7 Nc8 Qd8 Bbe5 Bg1 Bf2 Rg7 Be1 Qe3 Bad4 Na1 Kb4 Ba8 c4 Kb7 c5 Qe7 Qeg4 Rd6 c6+ Kb8 Kc5 Qh3 Qgh4 Qhe6 Qf4 Qb3 c7+ Kb7 Rc2 Rf6+ Nd6+ Ka7 c8Q Be4 Qc6 Bg6 Qf1 Qe8 Qa4+ Kb8 Rc4 Nf5 Nc8+ Nd6 Qc3 Rf3 Qc1 Qe7 Qfh3 Rf1 Qd3 Bf5 Re8 Bg6 f8Q Bf7 Rc2 Bg6 Qf4 Bf7 Rf8 Be8 Qf6 Kb7 Qfg6 Nf7+ Qd6 Nh8 Rf3 Bf2 Rh3 Bg3 Rg1 Bf4 Rg4 h1B Rgh4 Bh2 Rf4 Qg8 Kb4 Qa2 Rc7+ Kb8 Kc5 Qb3 Rc6+
2b5/1Q1p2k1/RQ3NBR/1NbQKRB1/nr1n2qr/q4pQ1/r2N4/1NQ1b3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kg3 a5 e4 f5 c4 Kf7 h4 a4 b4 g4 Kf4 g3 c5 g2 c6 a3 b6 d3 b7 a2 h6 d2 c7 Ra7 h7 Ra4 e6+ Kg7 b5 Kh6 b6 Nf6 h5 Ra6 e7 Ng4 e8N Be7 e5 Bf6 e6 Be7 Nd6 Bf8 e7 Ra5 e8N Nf6 Nb5 Ra8 Nf3 g1Q Bd3 Nc6 b8Q Ng4 b7 Qa7 Nf6 Bc5 Rf1 Kg7 Be4 Nf2 h6+ Kf8 Qb3 d1R Qd5 Qa3 Nfd2 Nd4 Ke5 f4 Bg6 Ne4 Qa7 Rb8 Qb6 Nc3 Rf3 Ra8 b8Q Na4 Q8b7 Rg1 Rf1 Rg4 Rf2 Rh4 Rf3 Rg8 h8R Ra7 h7 Kg7 Rg3 f3 Rg5 Rf8 Rf5 Rf7 Re8 Ra5 Re6 Qg8 h8Q+ Kf8 Qh5 Kg7 Qg4 Re7 Nd6 Rb5 Qg3 Rb4 Nb5 Re8 Nc4 Rf8 Bg5 Rd8 N1c3 Re8 Rh1 a1B Nb1 Bc3 Rh2 Be1 Ncd2 Rf4 Rh6 Rh4 Q7a7 Bb7 Qaa6 Ra8 c8Q Ra7 Qcc7 Bc8 Qab7 Qh7 Be8 Qg6 Qcc6 Qh5 Bg6 Qg4 Qcc7 Bf8 Qc3 Bc5 Qc1 Nb2 Bf4 Qb3 Q6c7 Ra2 Ra6 Qa3 Bg5 Na4 Qcb6
B7/NBpnp3/3q2Nq/2R1rRq1/1NnBN3/b3N2k/1r5R/nbK1Q1RQ b - - 0 1 illegal: No possible last move, all moves rejected
1R1B1nb1/bpK4Q/2B5/6Q1/3qq1R1/N2R1RQn/bpBB2rN/Rq2r1k1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 h5 a4 h4 g4 b3 d4+ Kb6 f4 c5 f6 c4 f5 b2 f7 c3 f6 e6 d6 h3 g6 c2 g7 h2 d5 Kc5 g5 Bd7 g6 Ra5 Qd3 Qc8 Qg3 Qc7 Bd3 Ra7 a5 Nh6 g8R Qd8 Bd2 c1Q Na3 Qb1 g7 Bb5 a6 Bc4 d7 Ba2 d6 Ng4+ Ke4 e5 Nf3 Qb6 d8Q Nd7 Rd1 h1B Bc2 Rh2 Qe7 Rg2 Nh2 Ra8 a7 Re8 a8Q Nf2+ Kf5 Kd4 Qa5 e4 Kf4 e3 Qag5 Nc5 d7 e2 d8B e1Q Qc7 Be7 f8R Nd7 f7 Bc5 Kf5 Re4 Re8 Re2 f8R Nh3 Re3 Qd6 Rf3 Ba7 Re8 Nf8 Re4+ Kd5 Rg4 Re4 Rh8 Kd4 g8B Qe3 Bd5 Qd3 Bf4 Re1+ Be4 Qb4 Bd2 Qe2 Bc6+ Qe4+ Kf6 Qc3 Qh7 Qe3 B2a4 Kd3 Bc2+ Ke2 Q5e5 Q3d4 Ke7 Qa4 Kd6 Qd4+ Kc7 Bg8 Qg5 Ba2 Rf5 Bg8 Nf3 Kf1 Nh2+ Kg1 Rf3 Ba2 Bc1 Qe6 Rf7 Nd7 Re8 Nf8 Be7 Qf5 Rb8 Qg6 Q3f4 Rg3 Rd3 Bhd5 Bd8 Rg2 Bd2 Qge4 Qg3 Be6 Rff4 Bg8 Rff3
R1b4Q/p1N3R1/1r2N1QN/Qnq2NbK/q2Qn2B/1Np1rR2/2B5/1b3k1r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 f4+ Ke4 d4 c5 b4 e5 d6 c4 d5 h3 d7 c3 d6 h6 b6 h2 b5 Qe7 d8N Qc7 d7 Ba6 f6 Qc8 f5 Be7 f7 Qc4 f8N Qa4 f6 Ba3 b7 Ne7 f7 Nec6 b6 Bc4 Kh5 Qb3 g4 Bb2 g5 Bd3 g6 Qa4 g7 Nd4 g8N Na6 b8Q Nc5 b7 Nb5 Nd2+ Ke3 Ne2 Kf2 Qd6 e4 b8R e3 Qg6 Bb1 Rg1 h1B Ng3 e2 Nfe6 e1Q Bd3 Qe3 Nf5 Ne4 f8Q Qc5 Bc2 Rh7 Nb3 Re7 Bg5 Bc1 Rc8 Rb8 Nc7 Rb6 Nde6 Bf4 Bf6 Bg5 d8Q Bg2 Q1d5 Bh3 Ra8 Ke2 Rg2+ Kf1 Qd4 Rf7 Qgg7 Ke1 Ne8 Rb8 Nfe7 Be3+ Ng5 Bc8 Kh4 h5 Qa5 Rb6 Nc7 Bc1 Qh8 Ba2 Qfh6 Rg7 Nge6 Rg3 Rg1+ Ke2 Q6h7 Bh6 Q7g7 Re3 Raf1 Bb1 Nf5 Bf4 Rf3 Bh6 Kh3 h4 Kg4 h3 Bh4 h2 Kh5 h1R Qf7 Bf4 Rg7 Bh6 Qg6 Bg5 Rg3 Kf2 Ngh6 Kf1 Rf3+
1q1N1NBR/p1B5/bb1NK3/rB1B4/2N1p2Q/1Q3n1B/R1q3nb/1r2Qr1k b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Ke2 Kf7 Ke3 Ke6 Kd4 Kf5 Kd5 e5 c4 h5 b4 h4 f4 d6 g4+ Kg6 c6 e3 b6 e4 f5+ Kh7 g6+ Kh6 b7 Kg5 c7 Kf4 f6 Kg3 g7 e2 c5 e1B b5 h3 f7 h2 g5 Bd2 b6 Nh6 g8B Bg4 c8N Nc6 b8Q Bh3 b7 Bg7 f8N Nd4 c6 Bf4 c7 Nhf5 g6 Nh4 Ra2 Ndf3 Bb5 Bf1 Ke6 d5 Nd2 Kg2 Nd6 d4 c8B d3 N2c4+ d2 Qe1 Bd4 g7 Rh5 Ne2 Bb6 Nd4 Be2 Bcd7 d1Q Nc6 Qc2 Ba3 Qc7 Qd8 Rb8 Bf7 Rf5 g8B Be5 Bc1 Bd3 Bf4 Be2 Rf1 h1R Qe7 Rg1 Nd8 Kh1 Rf2 Rf1 Rh2+ Kg1 Bg3 Ng2 Rh8 Bd3 Bh2+ Kh1 Q7h4 Bf4 Bbc6 Ra5 Bb5 Bfe3 Bc8 Bg1 Bg3+ Bh2 Bcd7 Ra8 b8Q Qc8 Qb7 Rb8 Qd5 Be2 Qd3 Qb7 Qb3 Bd3 Ne8 Qa8 Bc7 Rb7 Ned6 Qb8 Ke7 Be2 Bh3 Bd3 Bd5 Be2 Ne3 Bc4 Ke6 Be2 Ba4 Ba6 Bb5 Bg3 Qc4 Bh2 Be8 Bd4 Qcc3 Rb6 Nc4 Rb1 Qb3 Bb6 Bb5
n5rR/2NRb3/bNkr1Bqb/2R2n2/2pb4/bN3p2/2KB1R2/2BQBB1Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 e4 c5 b4 g5 d4 a5 Kd2 f5 h5 c4 e6+ Kd6 b6 f4 h6 f3 b5 a4 e5+ Ke7 d6+ Ke8 e7 Kd7 e8R a3 b7 a2 b6 g3 e6+ Kc6 e7 g4 d5+ Kd7 h7 g2 Kc2 g3 Rh2 Na6 b8B Bb7 Nd2 Bc8 b7 Ra7 Ne2 g1B Nf4 g2 Nb3 Bc5 Bc7 g1B b8B Bh6 Rf2 Bg7 Ba5 Qc7 Be1 Qd8 Bc7 Bh6 Bca5 Rb7 Bad2 Rb6 Rf8 Nc7 e8N Na8 Nc7 Qf6 Rf7+ Kd8 d7 Ba6 Rf8+ Ke7 d8B+ Kd7 d6 Ne7 Nfd5 Rg8 h8Q Kc6 d7 Nf5 Rb1 Qe6 Bf6 a1B d8R Ba3 Rd7 Bd4 Ra1 Be7 Ra5 Bb2 Rfd8 Bba3 Rb5 Qf7 Re8 Qg6 Rc5+ Kb7 Rc8 Re6 Nb6 Rd6 Rg2 Bd4 Rf2 Bf4 Qh1 Bh6 Rb5 Kc6 Rb8 Rg7 Rh8 Rg8 Rc5+
q3b1kn/Qn1B1B2/NN5R/RpRpb3/2Qr1nN1/8/RBN2r2/Rn1n2K1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 f4 e5 Kf2 g5 a4 b5 h4 e4 a5 d6 h6 b3 c6 b2 f6 g4 c7 Be7 c5 Ra7 h7 Bf5 c8B Qd7 c6 Qd8 a6 Nd7 h5 Qa5 c7 Qa4 h6 Qc2+ Qe2 Qd3 Rh5 Qd1 Na3 b1N Nc2 Ra8 a7 Nd2 Nf3 e3+ Kg1 g3 Bb2 g2 Ne5+ Kf8 f7 Nc5 Bd7 Rd8 a8R Bf6 c8N Bg6 f5 Ne7 Nb6 Nb7 Qc4 e2 Ng4 e1N R8a5 Qf3 Rg5 Rg8 h8R Nb1 h7 Be5 Be2 Kg7 f8N Nd3 Ne6+ Kf7 f6 Nf4 R5a2 Rgf8 Nc7+ Qd5 Ra5 Bh5 Rhg8 Neg6 Na6 Nh8 R8g6 Rfe8 Rh6 Rf8 Qc8 Bg6 Bc4 Bh5 Qa8 Bg6 Qa7 Bh5 Kf2 g1N Bb3 Nge2 R5a2 Nhg6 h8Q Nec3 Kg1 Nd1 Rf5 Rc8 Ra5 Rc4 R1a2 Rd4 Rg5 Rb8 Qc8 Nh8 Qc4 Rf8 Rf5 Kg8 Ra1 Be8 f7+ Kg7 R1a2 Rg8 f8R Qe4 R8f6 Rf8 Rh1 Rf7 Rfh6 Kg8 Qf1 Qc6 Bbe6 Qc8 Qc4 Qa8 Rfh5 Bg7 Rc5 d5 Bf5 Be5 Bg6 Ne6 Bh5 Rf2 Bg6 Nf4 Bf7+ Kg7 R1h3 Kf8 Rha3 Kg7 Ra1 Kf8 R3a2 Kg7 Bg6 Kg8 Bf7+
nbR5/1n2QN1Q/K1bbp1B1/bB1RBk2/2q4B/4p1R1/B1bRr3/Qr4N1 b - - 0 1 illegal: No possible last move, all moves rejected
1n1NRb2/5p1K/B3RB2/6B1/q2QR1Np/rBbRR2b/b2b2nk/1Q3rN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Rh6 Kd7 Kf2 c5 Kf3 a5 Kg4 c4 Kh5 f3 b4 f2 e4 a4 g4 a3 d4 a2 d6 c3 d5 c2 e5 Qf6 e6+ Ke8 b6 Qc3 g6 Qg7 e7 Kd7 e8B+ Kd8 g5 Ra3 b5 Ra7 d7 Ke7 d8R Qb2 d6+ Ke6 b7 Kf5 d7 Ra8 b6 Nc6 b8Q Bb4 b7 Be1 g7 Nge7 g8R Na7 g6 Nac6 g7 Ke4 Na3 Nf5 Nf3 Ra5 Ba6 f1B Nc4 Bb4 Nce5 Qd4 Rf8 Ra4 g8R Ra3 Rg3 Nh4 Bg5 c1B Qa7 Be2 b8B Bcd2 Rg6 Bc4 Kh6 Bc5 Qb3 Kf5 Re1 a1B Re4 Bac3 Qb1 Ng2 Bd6 Be6 Be7 Ba2 Rd6 Qc4 Bf6 Nb8 Kg7 h5 Rd3 B5b4 Qd4 Bb7 Rc8 Bd5 d8N Be6 Rc6 h4 Be3 Rh5 Ng1 Bd6 Bd7 Qa4 Re8 Bf8+ Kg8 Rg5+ Kh7 Rg4 Bh6 Rf4 Rge3 Rf1 Bdc8 Bd7 Bc4 Be6 B8a6 Bc8 Bf4 Bd7 Bb3 Be6 Nef3 Kg4 B4g5+ Kg3 Ne5+ Kh2 Rb6 Bg4 Rbe6 Bh3 Ng4+
Qq1B3r/4NBk1/5n2/N1R4B/B1nbrp2/QRb1Q1p1/b6R/Q1n1nQ1K b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 f5 Kg2 Kf7 d4 g5 b4 a5 e4 c5 h4 c4 d6 c3 e6+ Kg7 e5 a4 b6 a3 e7 g3 e8B a2 b5 c2 d7 g4 e6 Kf6 h5 Na6 d5 Be7 d6 Rb8 b7 Nc5 b6 Ne4 h6 Rh7 Nd2 Rf7 h7 Rg7 h8Q Nc5 Nh3 Nb3 Rh2 Na5 Bb5 Qc7 d8Q Nb3 d7 Na5 Nf4 Qd6 Nb3 Nc4 Na5 Qe5 Ng6 Nd2 Ba4 Ra8 b8Q Qd6 b7 Nc4 Qa7 Qb8 Qdb6 Bc5 Ne7 Bd4 d8Q f4 Qf1 Bd7 Bb2 c1N Bh5 Be8 Ba3 Bf7 Kh1 Bc3 Rb1 a1N Qe3 Nc2 Rb5 Ne1 Rc5 g2+ Kg1 Qc7 b8R Qe5 Rb3 Qb8 Qh7 Rg5 Qb1 Kg7 Qa1 Nf6 Qdd3 Re5 Qb7 Ra7 Qa8 Re4 Qd6 Rd7 Qda6 Rd8 Bb2 Bb4 Be5 Bc3 Bc7 Rh8 Bd8 Qc8 Ng6 Qb7 e7 Qb8 e8B Bd5 Ne7 Bf7 Rh3 Bg8 Kh2 g1B+ Kh1 g3 Rh2 Bd5 Bef7 Bf2 Qd2 Bfd4 Qe3 Nd2 Rb7 Ba2 Rb3 Nc4 Qb6 Nf3 Qb4 Ne1 Qa3
3RKnN1/B1N1n2r/2k1r2n/1N2p2B/1QpB1Nn1/4r1Q1/2qB2Q1/3Bbb1R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 a5 Kg4 c5 Kh5 h6 Kg6 c4 Kf7 a4 d4 e6 g4 a3 b4 a2 f4 h3 b6 h5 b5 h2 b7 h4 g5 h3 b6 Bb4 g6 Rh5 f6 Ne7 f5 Qc7 g7 Ng8 d6 Nc6 b8Q Bc5 b7 Nge7 g8B Ra7 d5 Ra3 Bd2 Ra8 Qg4 Rg5 Na3 Ra6 Be2 Ra4 Rd1 a1N Qg2 Be3 Nb5 Kd8 d7 Qa5 Qbg3 e5 b8B Bf2 Ba7 Nc2 Bh7 Ra2 Bg6 Qa4 Bgh5 Ng8 Kf8 N2d4 f7 Rb2 f6 Nh6 Bef3 Rb4 Ne2 Rb3 Nf4 Re3 Rhe1 h1N Na3 Kc7 d8N Bf5 d6+ Kd7 Bb4 h2 Nde6 Ng8 Bhg4 Kc8 d7+ Kb7 d8B Bc2 Ke8 Qb3 f8Q Bd3 f7 Qc2 Nb5 Rg6 Bdb6 Rf6 Rg1 Be1 Nec7 Ne6 B6c5 Bf1 Rd8 Nf2 Bd2 h1R Bd4 Rg6 Bd1 Rh7 Bh5 Ng4 Qb4 Rf6 f8N N8h6 N8g6 Nf8 Rh1 Rd6 Nfd5 Ne7 Ngf4 Kc6 Nf6+ Re4 N4d5 Re6 Ng8 Re3 Nf4+
2rR1NRN/NB4bq/2B1rBr1/pp1nB3/1n1n1r2/1Q1N2Q1/bQ2k3/2N3K1 b - - 0 1 illegal: No possible last move
1N2NNrb/QbR2n2/1BQQ3p/2K5/1rnQ1p2/QrB3b1/1N1q4/2R2Bbk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 b4 Kd6 d4 a5 e4 c5 g4 f5 e5+ Kd7 e6+ Kd6 b6 a4 b7 c4 b5 h6 b6 a3 g6 f3 Ke3 c3 g7 a2 g5 c2 g6 f2 e7 Rh7 e8N+ Ke7 d6+ Ke6 d7 Kd5 Bd2 c1B Nh3 Ra3+ Nc3+ Ke6 d5+ Ke5 d6 Ra7 Na4 Ra8 Nf4 Ne7 g8Q Nec6 g7 Na5 Ne6 Nbc6 b8N Bb7 Nb2 Nc4+ Kd3 Kd5 Bc3 Bf4 Rc1 a1B Rh5 Qg5 d8Q Bg3 d7 Bc5 Qf8 f4 Qde7 Nd8 g8Q Nf7 d8B Rg7 Qf6 Ra3 Qh7 Rb3 Rh3 Bd4 Qa3 Rg8 Nf8 Qh5 Rh1 Qh2 Qc6+ Ke5 Qh8+ Kf5 Qd2 Kg4 Bc7 Bc5 Qd4 Qg2 Rg1 Kh3 Qd1 Kh2 Qdd6 Bb4 Kd4 Ba5 Qd3 Bb4 Qde4 Bc5+ Kd5 Bd4 Bd8 Bh8 Kc5 Rb4 Qed4 Rb3 Be2 f1R Bd3 Rf3 Bf1 Qd2 Rc2 Rb4 Bc7 Bc8 b7 Re3 Rc1 Rd3 Rg2+ Kh1 Bb6 Rf3 Nbd7 Rd3 b8Q Bb7 Qba7 Re3 Nb8 Rf3 Qd3 Re3 Re2+ Rf3 Re7 Bd4+ Kd5 Bg1 Rc7 Re3 Be5 Rf3 Qd4 Rfb3 Kc5+ Qg2 Qf2 Ra4 Nd1 Rab4 Bf6 Bc3 Nb2 Be5 Bg5 Bh8 Bf6 Bc8 Bc3 Bb7 Qb5 Qh2 Qfd4 Qd2 Qbc6+
2n1B2b/2r1B1RK/1q3QpN/3r1Q1Q/1R1N1Q2/3N1b2/Nnk2npb/2B1b2N b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 h4 c5 f4 e5 d6 a5 b6 a4 d7 g3 h5 g2 b7 a3 f6 c4 Kf5 c3 Kg6 e4 f5 c2 h6 Kb3 h7 a2 d5 e3 d6 e2 f7 e1N f6 Qe7 d8N Bd7 Rh4 Ba4 d7 Nf3 Ne2 Qe3 Ne6 Nd2 d8Q Nc6 b8Q+ Qb6 N6f4 Bb4 f8Q Ba5 f7 Bc3 Ng3 Nf6 Bb5 Be5 Nh1 Ng8 Qf6 Ra6 Qh5 Nb4 Nc3 Nc4 Be8 Bb5 Nd3 Bh2 Qf4 Ra5 Qfc5 Ba4 f8B Bc6 Qcf5 Bf3 Be7 Rd5 Rb1 a1B Rg4 Bd1 Na2 Bf3 Ne5 Nd3 Rg5 Nf2 Nd3 Nh6 Rg4 Rg8 h8N Nf7 Kh7 Nfd6 Nf7 Nc8 Nh6 Rf8 Bb5 Rfd8 Be8 R8d7 Rg3 Ka4 b4 Nb2 b5+ Kb3 Rg5 Rc7 Rg4 Qc5 b6 g6 b7 Qb5 b8N Qb6 Bd2 c1B Nc6 Kc2 Rh4 Nc4 Rb4 Nb2 Be3 Bd2 Rh3 Be1 Bc1 Bg4 Re3 Bf3 Ree4 Qc5 Rb7 Qa7 Reb4 Qb6 Nd4+ Kb1 Q6h4 Rc6 Nb5 Kc2 Bf8 Nc4 Rc7 Bg7 Qhf6 Bh8 Rg7 Nb2 Be7 Rc7 Nd4+
BNk5/b1N5/BBRbp1Q1/1Knb3r/2B5/2pqB1R1/4nbNN/Q1n1Rr2 b - - 0 1 illegal: No possible last move
1B2N2N/1nnk4/3p3n/bp4r1/b2N1Q1R/2n1Q1R1/2B1QBBr/K1B1rq1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 e5 c4 b5 Kc2 g5 Kb2 g4 f4 g3 h4 g2 a4 b3 c6 e4 a5 e3 f6 e2 a6 e1N f5 Nf3 c7 Bb7 c8Q Bb4 h6 Be1 a7 Bb4 h5 Be7 h7 Na6 h6 Nb4 f7+ Kf8 c5 Bd6 c6 Ke7 f8B+ Ke8 c7 Ne5 f6 Na6 Rh4 Nc5 Nf3 g1R Qe2 Rg4 Na3 Ba6 Bg2 Rg3 Nd4 Ne7 Nc4 Nd5 Ra3 Bb7 Ka1 Rg5 Qb8 Bc6 c8Q Bc7 Bd6 Ba5 Qa6 Qc8 Qab6 Nc7 f7+ Kd8 f8B Ng4 Be5 Bf3 Nd6 Nb7 Ne8 Bd5 Bc5 b2+ Kb1 Bg8 Rg3 Bb3 Be4 Ba4 Bc2 Nf2 Ka2 b1N Ka1 Nc3 Qe6 Ng4 Qb3 Rf8 h8Q Rf2 h7 Nh6 Bed6 Rh2 Qa3 Nb1 Qae3 Nc3 Bf4 Na6 Qbe5 Nc7 Q5e4 Rb8 Be5 Ra8 Q4f4 Rb8 a8B d6 Ba7 Qg4 Bg7 Rc8 Bb8 Qf3 Bf6+ Kd7 Bd8 Na6 Bb6 Qf1 B6a7 Nc7 Bc5 Nd8 Bg2 Nb7 Qhf6 N7d5 h8N Rc6 Q6e5 Nc7 Qg1 Ra6 Q5e3 Rc6 Bca7 Rcc5 Qh1 Rcd5 Nb3 Rd1 Nd4 Re1 Q3d2 Rd1 Nf5 Re1 Bf2 Rh5 Qde3 Rg5 Nd4
6qR/4Q1rR/b1p3bB/kBb1BR2/6Q1/n3R2Q/Nrp4B/N1RnnK1b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 e4 Kd7 d4 f5 b4 h5 g4 a5 e6+ Kd6 g6 c3 g5 c6 e5+ Kc7 e7 Kb6 e8Q a4 d5 f4 g7 c2 g6 a3 d6 a2 d7 h4 e6 f3 e7 h3 Nc3 h2 Nge2 Bb7 Bh6 Qc7 d8R Qd6 Nd4 Na6 Nb3 Nc5 Rc1 a1N Qd3 Qd7 Na2 Qc8 Rd5 Rh7 Rf5 Nf6 g8R Ng4 g7 Ba6 Rh8 Nf2 g8Q Rb8 Qg4 Rg7 Be2 Rb7 Kf1 Nd1 Qed7 f2 e8R Be7 Qdh3 Nd3 Qe6 Bc5 Qe7 Ne1 Rh7 Ka7 Reh8 Qg8 b6+ Ka8 Rg1 h1B b5 Rb8 b7+ Ka7 Rg3 Kb6 Nd2 Ka5 b6 Nb3 Re3 Nd4 Nb3+ Ka4 Bc4 Nb5 Na1 Na3 Be2+ Ka5 Bb5 Rd8 b8B Rd7 Be5 Rb7 Ke2 Rb8 b7 f1B+ Kd2 Bfg2 Ke2 Bf3+ Kf1 Be4 Rf8 Bg6 Rf5 Rd8 b8B Rd7 Bef4 Rb7 Bbe5 Rb6 Bh2 Rb8 Bc4 Rb2 Bb5
3q1Q2/B3Qrb1/1BpB1bb1/2BR1R2/n3BnQ1/NK6/1pQbN1n1/kN5r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 f4 Kd6 a4 Kc5 d4+ Kb6 Kd2 Ka5 Kc2 b5 h6 e5 h5 g5 f6 g4 f5 g3 f7 c6 h7 g2 h6 e4 d6 e3 d7 e2 f6 e1B d5 Bc5 f8B Bc3 f7 B5d4 d6 Be3 Ba3 Bf6 Rh5 Bd2 Qg4 Ra6 Rf5 Ra7 Bd3 Na6 Ne2 g1B Kb3 Bgd4 Be4 Nc7 Be7 Bb2 f8Q Nd5 Ra2 Ne3 Rd5 Qb6 d8Q Bf5 d7 Bg6 Bd6 Ng2 Qde7 Qd8 Rf5 Bbc3 Rc2 Bce5 Rc5 Bg7 Rd5 Nf6 Bc5 Nh5 Bd6 Bef6 Bc5 Qb6 d8B Nhf4 Bc7 Rb7 Bb8 Qd8 Bba7 Rg8 h8B Rd7 Qd6 Rf7 Qfe7 Rgf8 h7 Re8 Qf8 Re6 Qde7 Re5 Kc2 b3+ Kb2 b4 Bab6+ Ka6 a5 Kb5 a6 Ka4 a7 Re6+ Bd4 Rd6 a8N Re6 Nc7 Rd6 Ka1 b2+ Ka2 Re6 Nb5 Re5 Rd6 Rc5 Be5 Rc1 Rd5 Rh1 Bd6 Be3 Nd2 b1N Bdc5 Nc3+ Kb2 b3 Nb1 Rg1 Bab4 Rf1 N5a3 Bd2 Bd6 Rh1 B4c5 Be1 Kc1 b2+ Kc2 Bd2 Ba7 Be5 Bcb6 Bgf6 Bg7 Bd4 Bh6 Bg7 h8Q Bdf6 Qh7 Nh3 Kd3 Kb3 Bhe3 Ka2 Kc2 Ka1 Bec5 Na4 Kb3 Nhf4 Qhh3 Re1 Qc3 Rh1 Qc2
5Nb1/2KBQRN1/bQp1Q2N/4Q2k/3n2rp/2RqB3/4Rb2/Rrrr1nR1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 a5 Kc4 h5 Kc5 e5+ d6 h3 d4 a4 f4 h4 g4 e4 b4 c6 f6 Kg6 g5 h2 d5 a3 f7 e3 b6 a2 b7 e2 b5 e1R b6 Re4 f5+ Kh7 g6+ Kg7 Qg4 Ne7 d7 Na6+ Kd6 Ra4 b8R Bb7 Ne2 Nc5 Rg1 h1B Nbc3 R8a7 Ng3 Kf6 g7 Qc8 d8Q Rb4 g8R Ra6 Nd1 Re4 Nf2 Nd3 Be3 Rd4 Bh3 Qe6+ Kc7 Rh6 d6 Nb4 d7 Rg6 Qe8 Rd6 d8Q Rd1 Qd6 Bc8 b7 Nc2 Qdd8 Bg7 f8N Bd5 Qb4 Rb1 Qb6 Nd4 Re1 Rg4 Re2 Qe4 Qed7 Kf7 f6 Rd1 Nf5 Qd3 Ra8 Ra3 b8Q Rc3 Ra3 Rcc1 Rc3 Ba6 Qd6 Bh6 Qbc8 Bf4 Qe5 Bg3 Qdd6 Rg5 Ng4 Bf2 Ne6 Rg7 Ngh6+ Kg6 f7 Kh5 f8R Rg4 Rf7 Bb3 Nf8 Nd5+ Kb8 Bbc4 Qde7 Rb1 Qce6 Rdc1 Bg5 Ne3 Kc7 Nf1 Be3 Rd1 Rgg7 Rbc1 Rb1 a1R Rg8 Ra2 Ra1 Rb2 Rgg7 Rbb1 Rg6 Rf4 Rg1 Rg4 Qc8 Qc2 Rf6 Nd2 Nd6+ Rg5 Rf4 Bg8 Rf7 Qg6 Be6 Qc2 Ndf5 Qd3 Qcd7 Rg4 Qdd6 Rb3 Bd7 Rbb1 Qde6 Nf1 Ng7#
B2r3B/B2N4/1Kp1Qb1n/Q1QpR1q1/Q1BN1n2/3b2Nn/R4krQ/2bn4 b - - 0 1 illegal: No proof kernel
3n2b1/1n2nBkp/R2Np3/3b2Br/2b2q2/B1B1QQ1B/RQ3NNN/K3br2 b - - 0 1 illegal: No possible last move, all moves rejected
q2bn3/k2pR1RN/r3pRB1/1r2n3/1Qb1Qn1b/QR4Q1/B7/1bBN1Q1K b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 g5 c4 a5 f4 g4 Kf2 e6 Kg2 a4 b4 a3 b6 g3 b7 d3 f6 a2 c5 d2 c6 Qc7 f5 Kd8 b5 Ra4 h6 Ra6 f7 Ra3 h7 Ra5 f6 Bh6 b6 Rg5 h5 Rg7 Bd3 Bg5 h6 Be3 Qf1 d1B Bg6 Be2 Nc3 Bc5 Rh3 Bd4 Nf3 Be3 Ng5 Bg1 Nd1 Bf2 Kh1 Bb5 Rb1 a1B Rb3 Bad4 Rh4 Qd6 Rg4 Qe7 f8R+ Qe8 Rf7 Bd3 Re7 Bb1 f7 Nf6 f8R Bc3 Rff7 Ba5 Rf8 Rhg8 h8Q Rf7 h7 g2+ Kh2 g1N Kh1 Bh4 Rg2 Nd5 Qb2 Ne2 h8Q Nf6 Qh7 Nf4 Qa3 Rfg7 Rff7 Qf8 Rg1 Ne8 Rf6 Rh8 Qg8 Rh5 Nh7 Rb5 Qf7 Rg8 Qe2 Na6 b8Q Nc5 b7 Ncd3 Qe4 Ne5 Qbd6 Rh8 Qdb4 Kc7 Rgg3 Kb8 c7+ Ka7 b8Q+ Ka6 Rg2 Bb7 Rgg3 Bd5 Rg5 Bc4 c8B+ Rb7 Qc7 Ka7 Qcd6 Rb8 Ba6 Rb5 Qdd3 Bd8 Qg3 Rb6 Bb7+ Ra6 Bd5 Rg8 Bf5 Rg6 Rg4 Rh6 Rg7 Rh5 Bg6 Ned3 Bc6 Rb5 Bd5 Ne5 Rb2 Bcd3 Ba2 Bc4 Rb3 Bc7 Qe2 Nh3 Qab2 Nd6 Rf1 Qa8+ Qe4 Bd8 Q2a3 Ne8 Qff3 Qc8 Qfg2 Qa8 Rf6 Nf4 Qf1
1n1kR1Br/Kpn3Nr/Q1Q3p1/N1r3nQ/RB3N1b/Nq3bQQ/1n6/3B4 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 c5 Ke3 f5 d4 g6 a4 b3 h4 b2 e6 c4 a5 c3 a6 c2 d6 Qe7 a7 Nd7 h6 Ne5 h5 Qc7 d7+ Ke7 d8N Nd3 d5 f4+ Kd4 f3 e4 f2 d6+ Ke8 h7 Qf7 h6 Ne7 e5 Qf5 Ne2 Rg8 h8Q Ne1 Kc5 Nd5 h7 Qh3 e7 Qh4 Nc6 Bh3 d7+ Kf7 d8Q Bh6 e8B+ Ke6 Na5 Ne7 Kb6 Bg4 Qc7 Bg5 Ra4 Rg7 Qd3 Bf3 Bd2 c1R Bb4 Qh3 Na3 b1N Qa6 Rc8 a8Q Nd3 Qab8 Bh4 Ka7+ Rc6 Qcb6 Nb2 Bf7+ Kd7 Nf4 Nd2 Be2 f1N Bg8 Ne3 Re1 Ne4 Bd1 Rc5 Qc6+ Kd8 e6 N3d5 Re3 Rf7 Qhe5 Ng5 h8Q Nc7 Re4 Nh7 Qh5 Ng5 Qc3 Rh7 Qcd3+ Ned5 Qf1 Qg3 Qh3 Nb6 Re2 Nd7 Re5 Ne8 Qbd6 Nc7 Re2 Rb8 e7+ Kc8 e8N Kd8 Qe5 Rc8 Ng7 Nb8 Qh2 Qh3 Qg3 Qe6 Qf5 Qa2 Qfh3 Qb3 Be6 Ke7 Re3 Rch8 Bg8+ Kd8 Re8+
QN2Bb2/1p1K2QN/3NpB2/2RN2nB/Bn2b2b/R2N1rq1/3bk1Rn/7r b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 f4 e6 d4+ Kb4 a4 c5 g4 h4 d6 e3 f5 h3 g6 h2 d7 e2 a6 Kc4 f6 Rh3 d5 Rb3 g5 Qc7+ d6 Rf3 d8N Qf7 a5 Bh6 a7 Ne7 d7 Bg7 Kd6 Rh3 a6 Qe8 f7 Bb2 f8N Bf6 g7 Rf3 g8B Nd5 g6 Bc3 g7 Nc7 Bf7 Nd5 g8B Rh3 Bg5 Ne3 Ra5 Ng4 Nc6 Bd2 d8N Kd3 Nh7 c4 Bh5 c3 Bgf7 c2 Nf3 c1B Nc3 Qg8 Rc5 Ba3 Be8 Bd7 Rg1 h1N Nf7 Nh2 Bf6 Nf2 Rg2 Qg3+ N3e5+ Ke3 Qc1 e1B Bb5 Ne4+ Ke7 Bb4 Qa1 Ng5 Nd6 Rh4 Nd3 Rf4 Nc8 Rf3 Nd6 Bf2 Nd5+ Ke2 Ba4 Ba3 Nce5 Bc6 Nd7 Bab4 Ne3 Be4 Nd5 Ba3 Kd8 Bab4 Kc8 Nc6+ Nb8 Ba3 Kd7 Bab4 Be7 Ba3 Qg7 Nb4 Bd8 Bac1 Bf6 Ba3 Nc6 Rc8 Nb8 Rc6 a8R Rc8 Ra5 Rc1 a7 Rh1 Nc6 Nf1 Rc8 Nh2 a8Q Qe5 Nb8 Qf4 Rg4 Bh4 Rcc5 Qe5 Rg1 Qg3 Rg2+ Qf2 Bc2 Bac1 Rc7 Na2 Nf7 Ba3 Ra7 Be7 Rc5 Nb4 Ra3 Bd6 Ba4 Bf8 Rg1 Qg2 Nd6 Qg3 Rg2+
2n2Nqr/1pnRp1NN/R1Bb2K1/2n1QQ2/1Q3r1Q/4N2r/4nk1B/Nb4R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 f4 g5 d4+ Kb6 a4 c5 h4 b3 a5+ Kc7 h6 Kd6 h5 g4 f6 g3 a6 b2 h7 g2 f5 c4 f7 c3 a7 c2 f6 Bg4 h6 Bh3 Nd2 b1N Qe1 Na6 Ne2 g1R Nc4+ Kd7 d6 Kc6 d5+ Kc5 d7 Qb6 d8R Qb2 d6 Nb8 d7 Qb3 Bf4 c1N Bg2 Na6 Nd4 Rf1 Rg1 Nd3 Nc2 Bg7 Bh2 Nc7 Bf3 Bg2 Kf5 Nc3 Kg6 Ne2 Bc6 Rf3 Ra3 Rh3 Na1 Kd4 Qf1 Rb8 a8Q Nc5 Qa5 Ra8 Qae1 Be4+ Qf5 Ra4 Ra2 Rb4 Qb1 Bd3 Ra4 Qa2 Ra6 Ra4 Qb3 Bb1 Qb6 Raa3 Qb4 Raf3 Ne5+ Ke3 Nc4+ Kf2 Ne3 Qd2 f8N Qd5 f7 Qc4 Ne6 Nf6 Ng5 Rg8 f8N Nd4 h8Q Nfe4 Qh7 Bf6+ Qg7 Qd5 h7 Rf4 h8Q Be5 Qh5 Rh8 Ngh7 Nd6 Qh4+ Kf3 Qgf6 Nc8 Qe6 Bd6 Qe5 Ncb3 Re8 Nc5 d8N Ne2 Nde6 Nc3 Rd8 Ne2 Qhf6 Kf2 Rd7 Qc4 Ng7 Qg8 Qh4+
Nn1B1b2/p7/2Bkn3/nR1BN2B/4brrp/2NRK2N/1bRN4/n1Q2qQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 d4 h5 b4 f5 e4 c5 g4 c4 g6 f3 g7 h4 g5 c3 g6 c2 b6 f4 b5 Rh6 b7 Qd7 e5 Rh8 e6 Qe8 d6+ Kf6 d5 Ke5 d7 Nf6 d8R Nbd7 g8B Rb8 b6 Bd6 e7 Rh5 g7 Rh8 Ne2 Ba3 d6 Nc5 d7 Na4 Bg2 Qf8 e8B Qd6 Bd5 Nc5 g8Q Ne6 Nec3 Qf8 Rh2 Kd6 Nd2 Rh5 Qh1 Rg5 Bh5 Rg4 Rb1 Bb4 Bb2 c1B Qd1 Ra8 b8N Bb7 Nc6 Rc8 Ba1 Bb2 Ne5 Rc4 Qc1 Bc6 b7 Qf7 Ke1 f2+ Ke2 f1N b8N Ne3 Na6 Nc2 Nc7 f3+ Kf2 Rcf4 Na8 Bb5 Bh1 Bd3 Qg5 Be4 Rg2 Ncd4 Ke3 f2 Bc6 Nb3 Rh2 Bg6 Bhd5 Na5 Qg1 B4a3 Qc1 Be4 Qg1 Bc1 Rb5 Bcb2 Qc1 Rg1 Qg4 Bb4 Qgd1 Rgg4 Qg1 Qf8 Re8 B4a3 d8N Nd7 Re7 Nb8 Rf7 Nd4 Ne6 Bb4 Ng5 Ne6 Nh3 f1N+ Ke2 Ne3 Rf5 Rf1 Rf3 Nc2 Rd3 Rff4 Rg2 B2a3 Bb2 Na1 Ke3 Qf6 Nf1 Qf7 Rc2 Qf6 Nd2 Qf5 Na2 Qf7 Bd4 Bb2 Bb6 Qc7 Nc3 Ke7 Bb7 Qc4 Rd4 Qf1 Rd3 B4a3 Nec4 Kd7 Bd8 Bf8 Ne5+ Kd6 Bbc6
2N1QNbR/3R1Nbq/8/2r1QBbb/1B2q1n1/KQRr2k1/p2Q1n1p/NQ6 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 Kb3 e4 g5 e3 g6 a4+ Ka3 e2 g7 e1Q b6 c4 b7 c3 f6 h3 f7 h2 b5 h4 f5 c2 b6 h3 f6 Ra6 Nf3 Qc7 Bd2 Qe6 Ng5 Nc6 b8Q Na7 b7 Rh7 Bd3 Nh6 g8N Bd7 Bf5 Qe5 Ne7 Ra5 Bb4+ Rc5 Nd2 Bb5 Nb3 Nc8 Qb1 Bg7 f8N Bc4 f7 Ng4 Ra2 Rh4 Na1 c1B+ Rb2 Be3 Rc2 Qe4 Rc3 Be2 Rd1 h1B Qb3 h2 Rdd3 Na7 Qe8 Bd2 b8Q Nf2 Rh3 Rg4 Rh8 Rg3 Qbb5 Bh5 Qd3 Qd8 Qdb1 Rd3 Qb5 Qb8 Qe8 Qb7 Nc8+ Kc7 Qe6 Nc6 Qf6 Ne5 d6+ Kc6 d7+ Kc7 d8R Neg4 d5 Bf4 Nf3 Bg5 d6+ Kc6 d7+ Kc7 Ka2 a3 Ne5 Qa7 Nh7 Bf3 f8Q Bf7 Qe8 Bg8 Nf7 Bd1 Qd5 Be2 Kb3 a2 Nf8 Bf3 Qfe7 Qb7 Qde5+ Kc6 Qb8 Kd5 Ka3 Kd4 Qe6 Ke3 Qeb3 Bd1 Qf4+ Ke2 Qd2+ Kf3 Qe5 Be2 Re8 Qc7 d8Q Qcb7 Re7 Qd7 Qd4 Kg3 Qe8 Qc7 Rd7 Qcb7 Be6 Qh7 Bf5 Qe4 Qde5+ Qf4 Rd8 Nh6 Qea4 Bh5 Qae8 Nhg4 Qf6 Qd4 Rd7 Qe4 Qfe5+
QRb2R1n/K4B2/R4B2/5BRr/1bnQ2q1/b2NpQrq/b2kB2p/3N3R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 e5 Kc4 a5 f4 h5 g4 e4 b4 e3 f6 Kg6 f7 a4 b6 d5+ Kb5 d3 c4 a3 c5 h4 c6 a2 b7 h3 c7 d2 Kb6 d4 f5+ Kh7 g6+ Kh6 g7 Kg5 b5 Kf4 f6 h2 g5 d3 g6 Bb4 f8Q Rh4 f7 Bh3 Ne2+ Ke4 Bb2 Rh5 Nc1 Qh4 c8B Ne7 g8B Nbc6 b8Q Ne5 g7 N7g6 Nc3+ Kd4 Kb7 Nc4 b6 Nh8 Qg3 Rb8+ Ka7 Bd7 b7 Qh3 Qh4+ Bg4 Qe2 d1Q Be6 d2 Nd3 Rc8 Qef2 Rcc5 Qa8 Rcg5 b8R Qe2 f8R d1B Qfg3 Bb3 Bgf7 Qf3 g8R Rg7 Rd1 a1B Be2 Qfg2 Qgf3 Qg1 Ba3 Bb2 Ra1 Qgg3 Nd1 Rg6 N1f2 Kc3 Nd1+ Kd2 Qd8 Bc1 Bb2 Qgh4 Ra6 Ba2 Ba1 Bca3 Bf6 Bf5 Bd7 Rg3 Rg5 Q4g4 Bc8 Be6 Qd4 Bd7 Bb7 Bf5 Be4 Bc8 Bf5
3NN2Q/1Kb1q2B/3Qb3/BQ2n1B1/2Q1pqqB/4R1Qn/r2NrqpR/4k3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 d4+ Ke4 b4 a5 h4 e5+ d6 g5 f4 g3 d5 a4 b6 c6 f6 g2 f5 g4 h5 g3 f7 a3 b5 a2 h6 Qf6 h7 Bb7 Nd2+ Ke3 Rh2 Kf2 Qg4 Ba6 b7 Ne7 Kb6 c5 Nc4 Qg5 f6 Qg8 d7 Qg5 d8B Qh5 d6 Qg6 d7 Ke1 Bd3 Nbc6 b8Q Bc8 Nd6 c4 Ne8 c3 Qc4 c2 Bg5+ c1Q Kc7 Qg8 b6 Ng6 b7 Nf4 Be7 Bg7 d8N Be6 f8Q Nh3 f7 Ra3 Rb1 a1Q Rb3 Ra2 Bef6 Qab1 Qd6 Qf4 f8B Qc2 Bg6 e4 Re3+ Qe2 Bh4 Ne5 Bfg5 Qgf7+ Bfe7 Rg8 h8Q Qf8 Bef6 Qe7+ Kb6 Bf8 Bh7 Rg7 Qbc7 Rf7 b8Q Bh6 Ra3 Qef2+ Ka6 Rg7 Qbb5 Rg6 Kb7 Rg8 Ne2 g1Q Nc1 Qgg2 Rc3 Qgf3 Bg7 Q3g4 Nb3 g2 Rg3 Rf8 Re3+ Re2 Qdd4 Nd7 Nd2 Qff6 Bf4 Ng1 Nd6 Re8 N8f7 Ra8 Ne8 Ra2 Nd8 Nh3 Qdb6 Qff5 Bc3 Bg7 Bh6 Be5 Ba5 Bg3 Qf4 Qfg5 Qf3 Bc7 Qg3 Q5f4 B6g5 Ne5 Qd6
5N2/KN2Rr2/2q2n1Q/QN1b2n1/2BBp3/1N2RRR1/1p1bbb2/1Bq1kNr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 h4 g5 a4 e5+ d6 b5 d4+ Ke4 f4 g4 a5 g3 d5 b3 a6 g2 f6 b4 f5 b2 h6 c6 h7 b3 f7 Qf6 Kb6 c5 a7 c4 h5 c3 h6 c2 Nf3 g1B+ Be3 c1Q Nh2 Bg7 f8R Ne7 Ra3 Na6 Qh5 Bb7 Bd4 Ng6 Bc4 Qd2 Nf1 Rd8 a8B Qfg5 d7 Qh2 d6 Qe3 f6 Ne7 f7 Qg2 Rh3 Qc1 Rg3 Bf2 Ka7 Rg8 h8N Bd5 h7 Nc7 Qh6 Ne6 Bb7 Re8 d8N Ng5 d7 Kf4 Nbd2 b1B Bc6 b2 Nb3 Bd3 Nb7 Be2 d8Q Qf3 Bd7 e4 Bdb5 Qfc3 Qa5 Rd8 Re8 Rd7 f8N Bf6 Bd3 Qc6 Bbc4 Rg6 Re3 Ng8 Bb1 Rf7 Re7 Be5 Rg3 Nf6 Re3 Bd6 Rg3 Bb4 Re3 Rfg7 Nf7 Bd2 Nfd6 Rf7 h8R Rgg7 Rg8 Kg4 Nh2+ Kf4 Nb5 Rg6 Nf3 Kg3 Nh2+ Kg2 Ng4 Kf1 Nh2+ Ke1 Nf1 Ngh7 Rf3 Rg1 Rgg3 Ng5 Na1 Bd1 Rae3+ Be2 Nb3
b1RR1K1N/Q5nN/2R2NBb/1b5Q/2qQpqQ1/r3R1pn/3Rr2B/1b3k2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 g5 b4 a5 h4 d5 f4 d3 f6 g4 b6 a4 b5 d4 f7 d2 h6 Ke3 f5 Kf2 h5 a3 h7 d3 h6 a2 b7 Qd7 b6 Qe8 f6 Nc6 b8Q e5+ Qd6 Nd8 b7 Nc6 b8Q Ra7 Nc3 Na5 Nh3+ Ke3 Ne4 Bd7 Nhg5 Qd8 Rh2 Nb7+ Kd5 Qc8 c5 Bb5 c6 Nd8 c7 Bg7 f8R Ra3 f7 Ne6 Rd8 Nf4+ Kc5 Nh3 f8R Qf5 c8R Qf4 Rfe8 Nf6 Qa7 Nh5 Nf6 g3 Qg4 Rg8 h8N Bf8 h7 Bh6 Bb2 d1B Rc1 a1Q Rd2 Qa2 Be2 Kf2 Bd4+ Ke1 Bg1 Ng7 Qd4 Qc4+ Kd6 Rf8 Bf3 Kf1 Ke7 Rg8 Rc3 Bc2 Bh2 Bb1 Be4 Rf8 Bg6 Rg8 Rdc2 d2 Ra2 d1B Rd2 Bdc2 Rc6 Be4 Re3 Bd5 Rdc8 e4 Red8 Rf8 Nd7 Rf5 Nf6 Qc7+ Kf8 Rf2 Nhf7 Re2 h8Q Qf4 Ngh7 Qc7 Qh5 Qf4 Qg8 Ra4 Nh8 Ra3 Re6 Ba8 Rec6 Ra6 Qe6 Ra3 Qeg4
2n5/2QNRRB1/b1bQQb2/4npBr/bq4Np/BQ2K1k1/BqB5/6rN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 g4 Ke6 e4 a5 b4 d5 c4 h5 g6 f5 b6 a4 b7 d3 b5 d4 g5 h4 c5 a3 b6 a2 g7 Nf6 g8Q+ Ke7 c6 Bh6 c7 Ra7 e6 Kd6 e7 Ke5 e8N Kf4 g6 Ng4 g7 Nc6 b8B Na5 b7 Rh7 e5 Ra8 e6 Nf2 e7 Qd5 Nf6 Qd8 e8Q Bd7 c8Q+ Qc7 Ng4 Rh8 Na3 Qe5 Qgb3 Nc6 g8B Bg7 Qee6 Bf6 Nh3+ Kg3 Nc4 Ne7 Ba3 Qd6 Nb6 Bc6 Qc7 Rh5 Nd7 Nc8 Bg2 Ra5 Re1 Rc5 Bd5 Rc1 Be4 Rb1 Ba7 Rc1 Rb1 a1Q b8B Qa2+ Rb2 Qa1 Rc2 Qb2 Bb6 Ra1 Ba5 Rb1 Bc3 Rc1 Nge5 Ng4 Nf2 Qb4 Ba7 Qb5 B7c5 Qb4 Be7 Bg7 Bg5 Bf6 Nc4+ Ne5 Ne3 Ra1 Neg4 Rc1 Qcd6 Rb1 Qc1 Ra1 Kd1 d2 Ke2 d3+ Ke3 d1B Bd4 Ba4 Rc7 d2 Bc2 Bc6 Qe8 Bg7 Nb6 Na7 Qd3 Ba8 Bb1 Nc8 Bga2 Be2 Rf7 d1B Qcc7 Ba4 Nd7 B8c6 Qb3 Ba6 Bc2 Bh8 Re2 Rg1 Bc3 Bg7 Kd2 Bh8 Re4 Bg7 Ke3 Bh8 Rf4 Ng6 Re4+ Kg2 Qee5 Bg7 Qef6 Bh8 Ree7 Bg7 Qfe6 Bh8 Bg7 Ne5 B7h6 Bf6 Bg7 Kg3 Nh1+
NKRb1n1N/1R2r1R1/2q3q1/r4p2/1p2B1B1/4kb1Q/RQB2B1n/N4Bnn b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 h4 f5 e4 c5 a4 b5 d4 c4 e6+ Kd6 a5 c3 h6 g4 Kf4 g3 e7 b3 e8B b4 a6 g2 h5 c2 h7 b2 h6 Ne7 a7 Qd7 e5+ Kc7 d6+ Kc6 e6 Kd5 Qe2 Qc7 Ba4 Bg7 Nh3 g1Q Ra2 Qb7 d7 Qb5 d8R+ Qd7 Be3 c1N Nd2 b1N Bc2 Ba6 Bf2 Bc8 Ng5 Bf6 Rg8 Ba6 Rg7 Qc8 Nb3 Nbc6 Na1 Ng8 e7 Qg2 e8B Bb5 Bh5 Nc3 Bg4 Bd8 Ne6 Ne4 Qd2 Be2 Nc7+ Kc4 d5 Ng3 d6 Nf6 d7 Nb8 Ke5 Re8+ Kd6 Re7 h8N Qg1 Rh4 Nh1 h7 Qb7 Rh3 Qc8 Rd3 Bf3 Rd5+ Ne2 Rb5 Qg2 Rb7 Qg1 Qc1 Kc3 Qb2+ Kd2 Ng6 Qg2 h8Q Ng1 Qh3 Qg3+ Kc5 Qd6+ Kb5 Qe6 Nh8 Qf7 Kb6 Qg6 Be1+ Ke3 Bg3 Nc6 Bh4 Nd4 Bf2+ Kf4 Ka6 Ne6 Kb6 Nf8 Ka6 Rb8 Na8 Qc3 Rc7 Rb5 Rb7 Bb6 d8R Qc6 Rc8 Bd8+ Nb6 Rbe5 a8B Rd5 Ka7 Rc5 Bh5 Ng4 Kb8 Nh2 Bg4 Ra5 Ra7 Qce8 Bae4 Qgc6 Rb7 Qeg6 Bg3+ Ke3 Na8 Bd1 Bh4+ Bf3 Bf2+
N5B1/3Q1QbN/q3nr1Q/3p2BK/B2Qb3/p2n3B/Nn1knQR1/4r1qR b - - 0 1 illegal: No possible last move, all moves rejected
2QbbN2/1B2RNBN/n3q1Rp/5p2/1bb1r1k1/5R1n/2rBBR2/1R1qQK2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 b4 a5 d4 f5 g4 c5 e5 c4 g6 a4 d6+ Ke6 g5 c3 g7 a3 g6 h6 d5+ Kd7 b6 c2 b5 a2 e6+ Ke8 e7 Kd7 e8R f3 b7 Qg5 b6 Qe7+ Ne2 Qe5 Bd2 c1Q Re7+ Kd8 d7 Qc5 Rh3 Qb5 Nc3 Ra4 Rb1 a1B Ne4 Bc3 Nd4 Qh2 Be2 f2+ Kf1 Qc7 Ng5 Qh2 Qe1 Na6 b8B Qd6 b7 Qbc6 Nh7 Ba5 Rf3 Nf6 g8B Ne4 g7 Ng5 Bf7 Qb6 g8R Nh3 Rg6 Rc4 Ba7 Rc2 b8Q Qb3 Bc5 Qe6 Qa8 Kc7 d8N+ Bd7 Bb6+ Kd6 Qc8 Ke5 d6 Be8 d7 Ke4 Bc7 Bb4 Be5 Bg7 Bg8 Bf6 Nf7 Qd3 d8R Bg5 Bdf4 Qd1 Bg7 Bf6 Bd2 Bg5 Re3+ Kf4 Rf3+ Kg4 Rd5 Qf6 Ne6 Qe5 Nef8 Qe6 Kg2 f1B+ Kh2 Qe4 Rdd3 Qe6 Rf2+ Kh4 Rdf3 Kg4 Bb5 Bc4 Kg2 Ba2 Be2 Bc4 Nd8 Qd7 Bd5 Qe6 Nd7 Rf8 Kf1 Rf6 Ndf8 Rf7 Ra7 Rd7 Bc6 Rd4 Nf7 Re4 Rb7 Kh5 Rc7 Bd8 Bb7 Kh4 Re7 Kh5 Bg5 Kg4 Bd2+
B3N1Nr/bRR1b1NQ/2R2pQ1/1N1K4/b1RN1q1n/3b2q1/1Br1p1n1/3Q3k b - - 0 1 illegal: No proof kernel
6NK/Brq2q2/1QRqpQ2/1BR2q1p/N7/Q3b2N/bR4kN/1RNn1rn1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 b4 a5 f4 c6 g4 h3 g5 a4 g6 e6 f6 a3 b6 a2 b7 h2 f7 Bh6 f8Q+ Qe7 g7 Ra4 f5 Rh7 f6 Bf4 f7 Ra8 b5 Ra3 b6 Nf6 g8N Rf3 Nc3 Bg3 Qa4 Bd7 Nge2 Na6 b8R Rf2 b7 Rh8 Rb1 a1Q Qa3+ Nc5 Rc8 Bf4 b8R Ne4 R8b2 Rh6 Na4 Ng3 d3 Qa2 Be3 Rh7 Nc1 Bg5 Rg1 h1Q Qg7 Rf5 f8N Qf3 Ng6 Qf7 Ne5 Qb3 Be2 Qb6 Ng4 Rf6 Qh8 Qf5 Nh2 Qd8 Rc7 Bc8 Rd1 Bb7 Rdd2 Ba6 Rdc2 Bc4 Bg1 Ba2 Be3 Rfh6 Qf6 Qb8 Rc8 Qb4+ Rc4 Nce4 Bg1 Nc3 Bf2 Kd7 d6 Qb8 Rc5 Nd1 Be1 Bf4 Ba5 Rg6 Bb6 Rg4 Ba7 Rh4 Nf1 Rh1 Nh2 Rf1 Rc7+ Ke8 d7+ Kf8 Qe7+ Kg7 d8Q Kg6 Rc8 Bd2 Qb6 Qc7 Qf8 Kg5 Qd8+ Kf4 Qf6 Qce7 Rc7 Ne4 Rc8 Kg3 Rc7 Nec3 Rc8 Qf3 Ke5 Be3 d4 Kg2 Bb5+ Ne2 d5 Qf2 d6 Ng1 d7 Qd6+ Ke4 Rg7 d8N Rh7 Rcc2 c5 Rc6 c4 Rc5 Qfe7 Nf7 c3 Ng5 Qf7 Nh3 Rg7 Re2 c2 Rd2 Qdf8 Rd6 Qd2 Ke5 Qa5 Ne2 c1Q Rdc6 Qd6+ Ke4 Qad2 Rc3 Qdc7 R3c5 Qfe7 Qf5 Qdd6 Qe5 Qb7 Qd4 Qd2 Nc1 Qf2 Qe5 Qf8 Qf5 Qbc8 Qf4 Rb7 Qf7 Qdd7 Ke5 Qfe8 Qf4 Qd6+ Kf6 Qcc7 Qf5 Qee7+ Kg6 Qf8 Qf7 Qfe7 Kh7 Qf6 Qe7 Qf7+ Kh8 Qc2 Qf6 Qf2 Rb3 Qf5 R3b2+
NQ1n1r2/1k2n3/1pn2Q2/1b1N2B1/1RN1Rqr1/Q2B2RQ/NqN1n1p1/3K2b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 d4 c5 h4 Kc7 a4 e5 h6 g5 f6 e4 f7 g4 a5 c4 h7 e3 f5 b6 d6+ Kb7 d5 b3 h5 b2 h6 g3 a6+ Ka7 d7 g2 f6 c3 d6 c2 Qf3 e2 Qa3 Bb7 Rh4 Bc6 Re4 Be7 f8N Ba4 f7 Qc7 d8Q Nc6 d7 Bb3 Nc3 b1Q Na2 Nd4 Ng6 Bc4 f8N Qh2 Ne5 Be6 Nc4 Qc7 Nh3 Bf6 Nf4 Bf5 Nd5 Ne7 Ne6 Qb2 Rb1 Rg8 h8Q Ndc6 h7 Bd4 Bg5 c1N Qf6 Bg1 h8Q Qf4 Qhh3 Rc8 Qdf8 Nd8 Nd4 Bg6 Nc2 Be8 Ra1 Kb8 a7+ Kb7 a8N Rb8 Rb1 Rg6 Bh6 Rg4 Bg5 Rc8 Nde3 Rb8 Kd2 e1N Bd3 Nf3+ Kd1 Nd4 Nd5 N4c6 Q8h8 Ne6 d8R Ne2 Rc8 Bd7 Rg8 Rf8 Rg6 Ned8 Rg8 Qd4 Rb4 Qb2 Bh6 Rh4 Rg3 Rg4 Bg5 Ncd4 Qd6 Bb5 Qhf6 N4c6 Qb8+
2Bbn1Rb/Bb5p/4NRqB/RR1rr3/7K/N2B1q1n/1QpQ3Q/B1b2k2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 f4 a5 Kf2 c5 d4 e5 b6 e4 b5 a4 f6 a3 f5 h3 Kg3 c4 g5 h2 f7 a2 g6 e3 f6 c3 g7 c2 b7 e2 b6 Nh6 g8B Ra3+ Kh4 Rf3 Be3 Qe8 Na3 Rf5 Nf3 Qe6 Qd2 Nd7 Ng5 Qe8 Ne6 Bg7 f8R Rf2 f7 e1B Bd3 Nf6 b8R Qc6 b7 Ne8 Rg1 Ng4 Qc1 Ba5 Qb2 Qa6 Rgf1 Re2 Rf6 Bd8 Bh6 Kd7 d6 Kc6 d7 Nf2 d5+ Kd6 Be3 Nh3 Bb6 h1Q Ba7 Bb6 d8B Bh6 Kg4 Qf3+ Kh4 Bc1 Be7+ Kd7 d6 Kc6 d7 Re5 d8Q Ba5 Qdd4 Bd8 Qdb4 Kd5 Qd2 Qc6 Bb4 Qd6 Bc3 Qc6 Ra8 Qb6 b8Q Bb7 Rb1 a1B Bd4 Rg5 Qbh2 Re5 Bb5 Ke4 Be2 Qf5 Bd3+ Kf3 Bc3 Qg1 Bcd4 Qg6 Bc3 Nd6 Re8 Rd5 f8B Re5 Bg7 Rd5 Rf8 Ne8 Bf7 Rg8 Bh6 Rg7 Bg8 Rc7 Bf7 Rcc5 Rg8 Re5 Bb8 Rcd5 Ra5 Nc7 Ba7 Ne8 Nf4 Qe4 Be6 Qe2 Bef5 Qd1 Ne6 Qe2 Qhf4+ Kg2 Qh2+ Kf1 Ba6 Ba8 Bc8 Qf3 Bd3+ Re2 Qa2 Bb7 Rbb5 Bab2 Be5 Bd4 Qb2 Bc3 Bf5 Re3 Bed4 Ree5 Bd3+ Re2 Qa2 Bb4 Ba1 Bc3 Qb2 Bd4 Bg5 Bc3 Rf7 Bg7 Rf6 Bh8 Bf5 Re1 Bh6 Ree5 Bd3+
1Qb3Bq/1nN1pR2/3r3n/N2Qb2N/4B1b1/2kr1q2/2p3RN/Kb1RNBB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kf7 a4 c5 d4 h5 Kd2 b5 Kc2 b3+ Kb2 b4 f4 h4 g6+ Kf6 a5 c4 g5+ Kg7 a6 h3 d6 Qa5 a7 Qb6 d7 Qd6 d8N Bd7 d5 Rh5 f6+ Kh8 f5 Qa6 g7+ Kh7 f7 Qh6 d6 Qe6 f6 Kg6 Be3 Kf5 g6 Ke4 Rh2 Ra5 Rg2 h2 Nc6 h1Q Na3 Qd5 Nf3 Na6 Nc2 Ra3 Na5 Qh8 Bg1 Bg4 d7 Rd8 a8B Nh6 g8N Bg7 f8N Nc5 Ne6 c3+ Kb1 b2 f7 Be5 f8R Rb3 Nce1 Qb7 Qd6 c2+ Ka2 Rd3 g7 Qc6 Rd1 b3+ Ka3 Qb7 Nh2 Qd5 Bc6 Nb7 Rff2 Ke3 Qb8 Ke4 Nc7 Kd4 Rf8+ Kc3 Nf6 Qf3 g8B b1B Bb6 b2 Nh5 Qff6 Be4 Qf3 Bg1 Ba2 Rf5 Be6 Rf7 Bef5 Ka2 b1B+ Ka1 Re8 d8Q Bc8 Qd5 Rd8 Rf8 Rd6 Rf7
b1R1N3/1NrNp1Nq/qb2rB2/Qnn4R/1N2R2B/b3Q2p/k4R2/b3KB2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 f4 a5 d4 c5 g5 h5 b6 h3 f6 h4 g6 h2 b5 c4 f7 a4 g7 c3 b7 c2 f5 a3 f6 a2 b6 Ra3 Qd2 Re3+ Ne2 Rh5 Bb2 c1B Na3 Rf3 Ng3 Qc7 Nf5+ Kd7 d6 Kc6 d5+ Kc5 d7 Nh6 d8N Rg3 g8N Rg6 d6 Bd7 Qe3+ Kb4 Ng7 Bg4 d7 Na6 b8R Rc5 b7 Nf5 Rc8 Nd4 b8B Bf3 Nb7 Qc6 d8Q Nb5 Bg3 Be4 Rb1 a1B Nc2+ Ka4 Bc3 Ba3 Rd1 Kb3 Rd4 Bd5 Re4 Ka2 Qa5 Qe6 Bb2 Rc7 Qeb6 Qc6 Nf5 Qc4 Nbd6 Ba8 Nb7 Bh6 f8N Be3 f7 Bg1 Nd7 Be3 f8R Nd4 Ng7 Re6 Rf2 Qc6 Bc3 Nb5 Ngf6 Bc5 Nfe8 Be3 Rg1 h1Q Bf6 Qh3 Qd4 Qf5 Qdd2 h3 Bgh4 Qh7 Rg5 Ba7 Qe2 Nc5 Rh5 Qa6 Qe3 Bb6 Nb4+
1r2qQ2/1Nq1pNRQ/3bQ1Qb/4R2K/bk3b1B/1pR1R1N1/1r2n3/1B3Qn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 d4+ Kd6 h4 g5 a4 b5 f4 c5 h6 c4 a5 b3 a6 b2 a7 b4 h7 b3 h5 c3 h6 c2 Ra5 Qe8 Bd3 Qg6 Qe2 Qe8 Nc3 b1Q Qe6+ Kc7 d6+ Kc6 f6 Qd7 f7 Qb7 d5+ Kb6 d7+ Qc6 d8N Qa1 d6 Qb1 d7 Qa1 f5 Qa3 f6 Qcd6 Re5 Qc6 Nge2 Qa4+ Kh5 g4 Rh3 g3 Bg5 c1B Bb1 g2 Ne4 g1B Re3 Bh2 Nd6 Qc7 N8b7 Nc6 d8Q Rb8 a8R Nd4 Bh4 Bd7 Qe8 Nf3 Ng3 Ng1 Rc3 Bg7 f8Q Bf4 Nf7+ Bc6 Ree3 Kb5 Ra5+ Kb4 Rae5 Bb5 Q8c6 Qa8 Qg2 Ba4 Qe8 Bf8 Qf1 Bg7 Nfd8 Bf8 f7 Bg7 f8Q Nf6+ Kg6 Nd5 Kh5 Rg8 Q8g6 Rh8 Nf7 Rg8 Rc5 Nc3 h8Q Nce2 h7 Bgh6 Rcc3 Rg7 Nc5 Qac6 Nb7 Q6d7 Qhg8 Qe8 h8R Rh7 Qgf5 Rg7 Rh7 Rg4 Rg7 Rg6 Ne4 Rg2 Qgh7 Bhg3 Rd5 Bd6 Qfg6 Bgf4 Rdc5 Nd4 Rd5 Rb2 Ng3 Nde2 Rde5
Q1QQ1rRk/r1p1r1N1/1R4bB/BK6/1Qp1Bn1r/2N3qQ/7b/1nq2NN1 b - - 0 1 illegal: No possible last move, all moves rejected
6Q1/npQqq1Nn/2Nbr3/1Qr2RNn/3K1BB1/1N4Q1/3np1bN/B2kR3 b - - 0 1 illegal: No possible last move, all moves rejected
Q1b1B3/rp1BBB1r/1N4Bp/4q2k/nqR3N1/4NNQ1/K4R1b/1nbR3b b - - 0 1 illegal: No possible last move, all moves rejected
1nB4q/BQnBRNQN/1Q3K2/r1bR3r/1pk3pR/2Qbb3/3pBB2/2n5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 e5 Ke4 b5 a4 g5 h4 b3 f4 b4 c4 g4 a5 b2 a6 d6 f6 Ke6 f5+ Kd7 a7 Kc6 f7 Ne7 h6 Rg8 h7 Na6 h8B Qb6 f6 Rg5 h5 Nb8 h6 Ba6 h7 Qb5 Qd4 Qb6 Be3 Qa5 Be2 Qd8 Nh3 Bc8 Ra5 Bg7 f8Q Ba6 f7 Nd5 Bf2 Bh6 Nd2 b1N Qg7 Rg6 Kf5 e4 f8R e3 Ne4 Bb7 Nhg5 Qb6 Nf6 Nbc3 Nf7 Na2 Re8 Nc7 Re7 d5 Rh4 Ba6 Qc3 d4 Rb5 d3 Qd4 Kb7 c6+ Kc8 c5 d2 Ra5 Bd3+ Ke5 Nc1 Rb5 Ne6 c7 Kb7 c6+ Ka6 c8B+ Qb7 Rc5 Nc7 Bd7 Qc8 Rd5 Bg5 Qc3 Rh6 Qg6 Qe8 Bg7 Qf8 h8Q Rh5 Nh7 Qd8 Bh6 Qe8 Qhg7 Qh8 Qe6 Bf4+ Kf6 Bd6 Bf1 e2 Bhe3 e1B Be2 Bc5 Qd6 Ne6 c7+ Ka5 c8B Nc7 Bg3 Bf2 Bd4 Be3 Bf2 Nb5 Qb6+ Ka4 Qa1+ Kb3 Qb2+ Kc4 Qa3 Na6 Qa1 Nbc7 Qa3 Rb8 a8Q Rb7 Qb2 Ra7 Qab7 Nb8 Qe6 Bd6 Bc5 Ra1 Ba7 Bdc5 Qeb6 Ra5 Qc3+
2NB1rn1/Kn1Q4/QRBBRBkp/4N3/1Qbqp3/1BQ1b3/2n2prR/7r b - - 0 1 illegal: No proof kernel
KNnBn1R1/bB2QRb1/n1pR3r/3q4/5r2/2pB2Rp/2b1Q3/1k1BNBQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 h5 g4 f6 d4 c3 g6 h4 d5+ Kd7 g7 a4 g5 h3 g6 a3 b6 a2 d6 Kc6 b7 Kb5 Kd5 f5 e4+ Kb6 b5 Ka5 d7 Kb4 e6 f4 e5 f3 b6 f2 e7 Qe8 d8R Bf5 e6 Bg4 Na3 Bh5 Qe2 Kb3 Nc2 Ra4 Nf3 Rg4 Nfe1 Nd7 Kc6 Rg5 b8Q Rg3 Kb7 Rg5 Nd4+ Ka4 Qa7+ Ra5 Ka8 Nc5 b7 Qd7 e8B Nf6 g8Q Bg7 b8R Rh6 e7 Na6 Nc6 Qd5 Bg5 Ka3 Rd6 Ra4 Rg1 Rf4 Rg3 Bg4 Bf7 Bf5 e8B Bc2 Bd7 Ne8 Bf5 Rfh4 Rc8 Kb2 Bd3 Rf4 Rc1 a1B Bd8 Ka2 Qae3 Bb2 Qe7 Ba3 Rb1 Rf3 Rb7 Bc5 Nb8 Rf4 Be6 Ba7 Bg4 Be5 g7 c6 Rbd7 Kb1 Rdc7 Nb4 Ba6 Bed4 Bb7 Na6 Bf5 Bf6 Bd3 Be5 Qgf7 Bf6 g8B Bfd4 Qg6 Bg7 Bg2 f1N Qgg4 Qa5 Bb3 Nd2 Bf1 Qh5 Qgg5 Nc4 Qc5 Qd5 Qg1 Qf7 Qh4 Qe6 Rf7 Qd5 Qhe7 Bh8 Rdg6 Ncd6 Rg8 Bhd4 Rc7 Be5 Rd7 Nc8 Rd6 Bg7 Bg6 Be4 Bd1 Bc2 Bd3
3nB2N/1B1pBbn1/rbN4q/p3N2R/kB1QbN1K/6Q1/3prR2/Nr3Q2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 g4 h5 f4 e5 Kf2 d3 Kg3 d2 b4 e4 f6 e3 c5 e2 f7+ Ke7 b6 e1R b5 Na6 f5 Nb4 b7 Re4 b8N Nc6 b6 Na7 g6 Ba6 b7 Re3+ Kh4 Qc7 g7 Nf6 g8B Qe5 g5 Nd5 c6 Kd6 g6 Kc5 f6 Kb4 c7 Bd6 c8Q Qc3 f8N Nc7 g7 Qe5 f7 Rf3 Ng6 Be2 f8B Qb5 Bf7 Ne8 g8Q Nf6 Be8 Rh6 Be7 Bc4 Ne2 Qc6 Nef4 Re3 Na3 Re2 Nh8 Bf7 Qg3 Bc5 Bg2 Qa6 Qg1 Ka4 Qf1 Bb6 Nc6 Rb8 Ne5 Nc6 Bd5 Nd8 Qc5 Rg6 Bb2 Rh6 Bc3 Rg6 Bb4 Rh6 Kh3 h4 Qd4 Nh5 Rb1 Ng7 Nc2 Rf6 Na1 Rh6 Kg4 h3 Rb3 h2 Rf3 Rf6 Rf2 Rg6+ Kh4 Rc6 Rg1 h1B Rgg2 Rg6 Rh2 Be4 Rh3 Rc8 b8N Rc1 Bb7 Rb1 Rhh2 Ba7 Kh3 Qf6 Rh1 Qg5 Rhh2 Ra6 Nbc6 Qh6+ Kg4 Bc5 Rh5 Bb6 Kh4
7Q/1kNp1b1R/1b1r2bp/3r3B/N3rp1n/QQ3B2/KQRnq3/3RR1BQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 c4 f5 Kc2 f4 Kb3 d3 e4 d2 g4 a4+ Ka2 a3 b4 Ba6 e6 Nf6 c5 Bg7 b6 Qc7 e5 Kd8 c6 Kc8 e7 Ra7 e8R+ Qd8 b7+ Kc7 g6 Bd3 g5 Ba6 b5 Rf8 e6 Nd5 b6+ Kd6 e7 Be2 c7 Kc6 c8R+ Qc7 Nh3 Rf6 Nc3 Ra4 Bg2 Bf1 Bf3 Na6 b8Q Rf5 b7 Bg2 Qa7 Re4 b8Q Bd4 g7 Nc5 g8Q Ne3 g6 Nb3 g7 Bb6 Ng5 Rd5 Ne6 Nf5 Qh8 Nh4 g8Q h6 Na4 Bh3 Re1 Bf5 Rf8 Rd6 e8B Bg6 Rf7 Rd5 Rh7 Rd6 Qe2 d1B Qf1 Nd2 Qh1 Bc2 Bb2 Bf7 Rad1 Bd3 Bd4 Bb1+ Ka1 a2 Bg1 Bc2 Kb2 a1R Qa6 Rb1+ Ka2 Rb5 Qgg7 Rbd5 Qb2 Bd3 Qa5 Bc2 Qab4 Bd3 Qa7 Bc2 Q4b3 Bd3 Qa5 Kb7 Qab4 Bc2 Q4a3 Qc4 Rc5 Qe2 Nc7 Be6 Beh5 Bf7 Qbd4 Ree6 Rc6 Bcg6 Qdb2 Re4 Rc2
B1bRQ1Q1/1pb1n1p1/2q1N2Q/2nrk2r/N2Q1p2/RNn5/7B/NN2KbB1 b - - 0 1 illegal: No proof kernel
5rR1/2Bn3Q/K4b1N/B1Nqb2b/1QR1n1BN/Q1Q5/1ppQqrp1/k1B5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Kd4 a4 e5 f4 g5 h4 c5 d6 b3 a5 e4 h6 c4 h7 e3 a6 g4 d7 g3 f6 b2 a7 b6 h5 g2 f7 c3 h6 c2 f5 e2 f6 e1B Be2 Qc7 d8B Bg4 Ra4+ Bb4 f8Q Na6 f7 Qd6 Nc3 b1Q Qe7 Qg6 f8Q Bc8 Ne4 Qf6 Bc7 Be6 Nf3+ Kd5 d4 Bh4 Nc5 Qf7 Qd2 Bf6 Nh4 Nb8 Bg4 Nd7 Ka6 Kc4 d5 b5 d6 Bf5 Qg7 Rf8 a8Q Qd5 Qb7 Bg6 Rh3 Qb2 Rg3 Qbe5 Qb8 Qe2 Qb6 Ne5 d7 Bh5 d8B Nd7 Qb8 Rf7 Ba5 Be5 Bdc7 Ngf6 Qb6 Rb8 h8Q Ne4 h7 Rf2 Qhg8 Rbf8 h8N Bf6 Nf7 Be5 Q8h7 Bf6 Nd3 Kb3 Nh6 Bd6 Rc4 Ka2 Nc5 b4 Qe6 b3 Qbb4 b2 Qef7 Bd8 Qgc3 Be5 Qff3 Ka1 Qcb3 Bdf6 Qfc3 Ng5 Bh3 Nf7 Rg8 Nd6 Bg4 Ne4 Q3a3+
1R1B3Q/NqQ3bb/N1n1R2k/b4Q1q/p6r/pr1N2N1/1N1pBR2/1nR3K1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 Rh6 dxc5 Rh8 a4 bxa4 c4 Kf7 h4 a5 b4 g5 f4 Kg7 Kf2 d5 h6+ Kh7 b5 e5 c6 g4 f6 d4 h5 d3 f5 a3 c5 e4 f7 a4 c7 Na6 f6 Be6 c8Q Ne7 b6 Nd5 b7 Qd7 b8N Qa7 Qc2 Qe7 c6 Nc3 c7 Qd7 Ne2 e3+ Kg1 g3 Nd2 g2 Ng3 e2 Nc4 e1Q Bg5 Nd5 Rc1 Qe4 Be2 d2 Nb2 Nc5 Na6 Qg6 Qf5 Be7 f8R Rb8 f7 Bf6 Qd8 Rb4 c8N Nb7 Qc7 Na5 Na7 Bg7 Rb8 Nc3 f8R Nb1 Bd8 Nc6 Rf6 Bc4 Re6 Rb3 Rh4 Bd3 Rf4 Qc8 Rf2 Qb7 Rf4 Kg8 Rf2 Qf7 h7+ Kf8 Kh2 g1B+ Kg2 Bc2 h6 Bd3 Rff1 Bc5 Rf2 Bb6 Kf1 Ba5 Kg1 Rg8 h8N Be4 Qff4 Bh7 Qg4 Qf5 Nf7 Rh8 Ne5 Kg8 Ned3 Qh5 Qgf4 Bg6 Qf5 Kh7 Qh3 Bf5 Re3 Kg6 h7 Kh6 Qg4 Rg8 h8Q+ Bh7 Re4 Re8 Re3 Re4 Qf5 Rh4 Re6+
5N2/n1N1qq1r/1qQNNRB1/3QbKnp/2BNR2p/5pQr/1B1Q4/3k3b b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Ke7 Ke3 a5 Kf4 f5 b4 h5 g4 c5 e4 c4 d4 a4 g5 c3 b6 a3 b7 a2 b5 c2 b6 Nc6 b8Q Nf6 b7 Bh6 e6 Bd7 e5 Qc7 Bb2 c1Q+ Qd2 Rc8 d6+ Kf8 e7+ Kf7 e8N Kg6 e6 Na7 e7 Rd8 d5 Bc8 Na3 Ng8 Bd3 Nf6 Nc4 Bg7 Ne2 Qg1 Nd4 Bd7 Rf1 Qa5 Nc7 Be8 d7 a1Q d6 Q5a3 Rf3 Bf7 e8Q Ne4 Bc2 Qf2 Re1 Qb1 Re2 Rc8 d8Q Bf6 d7 Qe7 Nd6 Qa2 Nd5 Rc3 Nc7 Qb3 Bd3 Qb6 Bc4 Qf1 Rff2 Rh3 Re3 Kg7 g6 Kh6 g7 Bd5 g8B Ng5 Bf7 Bh1 Re4 Bh8 Bg6 Bg7 Bb3 Qc4 Ba2 Qcf7 Bc4 Bf6 Qg8 Bg7 Qde8 Bf6 d8N Bg7 Rf3 Be5+ Ke3 f4+ Kd3 Qef6 N8e6 Q6e7 Qbd8 Rb8 Qc6 Ra8 Qdd7 Rf8 b8N Re8 Rg3 f3 Rgg4 Rd8 Rgf4 Rf8 Rf6 Rc8 Nce8 Rc7 Ke3 Rb7 N8c7 Nh7 Ndb5 Qb4 Na8 Qe8 Qdd5 Rg7 Nd7 Qf7 Nac7 Qbe7 Nf4 Kg5 Nd6 Kg4 Qc8 Kg3 Nf8 Ng5 Qf5 Rh7 N4e6 Qa6 Q2a5 Kg2 Qf4 Qb7 Qd2+ Kg1 Ne2+ Kf1 Qg3 Qb6+ Nc5 Bc3 Kf4 Bd4 Kf5 Be5 Qg4 Kf2 N5e6 Kf1 Qe3 Ke1 N2d4+ Kd1 Qg3 Qc5 Qef4 Qb6 Qd2+
5b1B/1Qqn1B2/N3b3/1RN1N1p1/1qppK3/1k3NrR/3R1Nrq/2QR1n1Q b - - 0 1 illegal: No proof kernel
1K1b1R2/1bQN1r2/8/N2QNp2/pBr1N3/pb2n1BN/q1R1R1B1/nkqB4 b - - 0 1 legal: proof: f4 b5 h4 d5 c4 e5 cxd5 g5 fxe5 Nh6 hxg5 Ng8 a4 bxa4 Kf2 Ke7 Kg3 f5 Kf4 c5 g4 a5 b4 h5 e4 h4 d4 c4 d6+ Ke6 d5+ Kf7 d7 Kg6 d6 h3 e6 h2 Ke5 a3 b5 a4 e7 c3 e8Q+ Kg7 b6 c2 g6 Qc7 d8N Qc4 b7 Rh5 g5 Na6 b8B Qf7 d7 Nh6 Qd5 Qg8 Nc3 Qf7 Bd2 c1Q Ra2 Ra7 Nb7 Qe1 d8N Ra8 Na5 Nc5 Qed7 Ra7 Nh3 Be7 Ndc6 Ra6 Bg2 Ra7 Rc2 Bb7 Qc7 Qe3 Re1 h1B Re2 Bd8 Kd6 Qf4+ e5 Ne6 Ne4 Nc5 Bb4 Qc1 e6 Ng4 e7 Nb3 e8B Rh4 Ne5 Ne3 Bb5 Na1 Ba6 Kh8 g7+ Kh7 g8N Kg7 g6 Rg4 Nef2 Rc4 Nf6 Kh6 g7 Qg8 Ng1 Kg5 Nfd7 Kf4 Ne4 Qf7 Bf1 Bg2 g8R Bh1 Rf8 Bf3 Rh2 Bd1 Bg2 Qg8 Re2 Bb3 Rc2 Nf1 Nh3+ Ke3 Nd2 Ke2 Bb5 Kd1 Ne4+ Rd4 Bc4 Ne3 Bd3 Rc4 Re2 Qd2 Bc2+ Kc1 Bd1 Kb1 Qc5 Bg5 Kc7 Qc1 Rc2 Bc6+ Kc8 Bd8 Bc7 Bb7+ Kb8 Ra6 Re2 Rf6 Bd6 Rf7 Qc7 Qh8 Ng4 Qd4 Bg3 Qdb2 Nge5 Qa2 Bf1 Rg7 Rhf2 Rf7 Bg2 Bf6 Rc2 Bd8 Rfe2
r1b1R1B1/1kNQ1qBB/R5pp/4RR2/2q4n/1r1Qqp1K/2BQ1bNn/2B5 b - - 0 1 illegal: No proof kernel
rQ2K1Q1/1q1N2Q1/4R1pp/B1n1Bbb1/1pkN4/Q1r2B2/q1B2nR1/1R4Qr b - - 0 1 illegal: No proof kernel
3RBKQ1/N5rb/Rn1p3R/2R1Nn2/4rq1k/1qp3qB/3p1B2/b1N2NNQ b - - 0 1 illegal: No proof kernel
Bb1N1kbR/5rr1/3p4/R1QpQ2Q/3N4/2Qpqqr1/1B1n2NR/KQ1R2n1 b - - 0 1 illegal: Other
1Q1q1BB1/1RQ1Q3/KBbprQ1r/p2NQ2p/Nq3R2/1n1R4/1b1n1R2/4nk2 b - - 0 1 illegal: No possible last move, all moves rejected
1Q6/qR3r1k/1RpnB1QN/2BrB1b1/3Q2p1/BpR3R1/n2N2B1/3qrbK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 Kf2 g5 a4 Kg7 h4 b5 d4 e5 a5 g4 f6+ Kh7 d6 b3 f7 e4 f5 b2 f6 b4 d5 b3 h6 Kg6 h5+ Kh7 a6 Ra7 d7 Be7 f8B Rb7 f7 Rb5 a7 Rc5 a8B Rc4 d6 Na6 Nf3 e3+ Kg1 e2 Bd5 e1Q Be6 c6 Nbd2 b1R Ba3 Rd4 Ne5 Qe4 Rh3 Qg6 Rg3 Qg5 Bg2 Qc7 d8Q Rb4 d7 Nf6 Qe8 Ne4 d8Q Bb7 Qb8 Rb2 Rc1 Qg7 Rcc3 Bf6 Bc5 Rd4 f8R Rd5 Rf7 Qd6 Re7 Bh4 Nf7 Bg5 Qa1 Bc8 Rb7 Nb4 Rb6 Na2 Qd1 Qgf8 Rb7 Rb1 Rb6 Kg8 h7+ Kg7 Nh6 Ba6 Rb7+ Qf7 Rb6 Rg8 h8B+ Kh7 Be5 Qg7 Qf7 Rf8 Qf6 Bf1 Qc2 Qdd7 Qd3 Kh8 Qd4 Re1 Qg6 Qa7 Ng8 Rf4 h6 Nd6 h7 Rf6 Rb7 Qe7 Rb6 Qed7 Nh6+ Qd8 Qe8+ Kg7 h8R Qdd7 Rf8 Kh7 Qh5 Rf3 Re8 Rf7 Re7 Qd8 Rd7 Qf6 Re7 Qf3 Reb7 Qd1 Qg6+
R2Bq3/2b4Q/nnp1B3/2qN1B1r/1qkpQB2/1pR2R1B/N2r4/1bK2QQ1 b - - 0 1 illegal: No proof kernel
2N2BRQ/2kn1Rp1/n1N2qrB/5b1R/K1pR2bN/3p4/BB2R3/b1Qr2q1 b - - 0 1 illegal: No proof kernel
1krQNq1Q/1N3Np1/B2RbRRp/4R1p1/6qB/Bn6/Kb2q1n1/1r1B3B b - - 0 1 illegal: No proof kernel
Rq2RB1N/3p1R1k/1b1N1n2/3qr2n/2n2B2/1QpB1p2/NB3QRr/1b2B1K1 b - - 0 1 illegal: No possible last move
k5NB/2Np4/3q1p1K/1n1B1B1b/NR2NrqR/1r3p2/2b1n3/N1B1bQQR b - - 0 1 illegal: No possible last move
rNr1R2N/b1k3N1/b3Q1R1/B2nnQ2/Qp6/p1R1Q2p/Q1N2n1K/1B1nq3 b - - 0 1 illegal: No possible last move
BRbK2N1/4Q3/N2R2Q1/1Q1B1b1Q/p2nnbQ1/pq1pB3/7b/rr1B1kN1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 Nc6 dxc5 Nb8 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 a5 b4 d6 f4 e4 c4 e3 g4 e2 g6+ Kf6 b5 e1B g7 a3 g5+ Kf7 b6 h4 g6+ Kf6 b7 a4 c6 h3 c7 h2 c5 Bf2 c6 Bb6 Nd2 Ra7 Qh5 Qd7 Ne4+ Ke7 f6+ Ke8 f7+ Ke7 f5 Bf2 Rb1 Bb6 Nc5 Kf6 Be3 Nh6 g8B Be7 f8Q+ Nf7 Qe8 Ng5 g7 Ne4 Bg2 Bd8 Be6 Qf7 Na6 Ba5 Bf3 Bd2 Bd1 Rh6 Qg8 Rg6 Qgh7 Rg2 Rb2 Bc1 Rb6 Ra2 Qg8 Ra1 Rb3 Bd7 c8Q Bc7 Qce8 Bc8 Qg4 Nd7 b8Q Ndc5 Qb5 Rb7 Rd3 Bb8 c7 Nb3 Kc6 d5 Qh7 Ke5 g8N Bd2 f6 Bc1 Qhg6 Bd2 Bc5 d4 Qe7 Bf4 Bd5+ Be6 c8B Bc7 Rg3 d3 Be3 Bb8 Qec5 Bf5 Rg2 Bd6 Rb2 Rb8 Bb7 Nd4+ Kb6 Bc8 Ka5 Bf5 Ba8 Qb7 f7 Bc8 Qbd7 Qb3 f8Q Rb4 Qdb5 Bf5 Ne2 Bb8 Rf1 h1B Kb6 Bg2 Ng1 Bh3 Qd8 Bh2 Rb1 Bc8 Rf6 Bd6 Q4h5+ Bhf5 Qc4 Bb8 Rd6 Bf4 Bf2 Bh2 Qe7+ Kf4 Be1 Ke3 Bf2+ Kd2 Be3+ Ke1 Rb2 Kf1 Rb1 Ba7+ Kc7 Bb8+ Kd8 Bf4 Rd7 Bbe5 Rd6 Bh2 Qcc6 Bef4 Qgg4 Rc4 Rb2 Rcc1 Qce8 Rcb1 Qeg6 Qc3 Qa5 Qc4 Rb8 Qb3 Qb5
5Kbr/1k2BQ1B/4QQ2/1N1NNbnp/5N1R/Nqbp2pb/Q4r2/5BnR b - - 0 1 illegal: No proof kernel
N2r2R1/r1n1N1Rr/bK1b2pk/n1pNrQp1/1N2B3/4R2B/Q1q5/1RN1B3 b - - 0 1 legal: proof: f4 b5 a4 d5 axb5 e5 fxe5 h6 c4 Nc6 cxd5 Nb8 g4 Bd6 g5 hxg5 Bh3 Bb4 Bf1 Bf8 Kf2 f5 Ke3 Kf7 Kd4 Kg6 h4 a5 e4 f4 b4 c6 h5+ Kh6 b6 g6 b7 a4 b5 a3 d6 a2 Kc5 f3 d4 f2 b6 Kh7 d5 Ne7 h6 Bh3 e6 Qd7 e5 Qc8 d7 Ra7 d8N Nf5+ d6 Bg4 e7 Ra8 e8R Qc7 e6 Ra6 e7 Ra3 d7 Ng7 Qc2 Rg8 Bd2 Ra8 Be1 Ra3 Ne6 Ra8 d8Q Bd1 Qdd3 Nh5 Ne2 Rg7 Nc1 Qg3 Nc3 Bg4 Nc7 Qg2 N3d5 Be2 Rb1 a1R Qa2 Nf4 Qf5 Qe4 Bh3 Ra4 Na8 f1R Rh2 Kh8 h7 Ba6 Re2 Rh1 Re3 Rd4 Rc8 Rf7 Rc7 Kg7 h8R Rd2 Rg8+ Kh6 Rd7 Rh7 Rc7 Rhh2 Rd7 Rhe2 Rc7 Bg7 e8B Be5 Rcg7 Bc7 Bd7 Be5 Bg2 Qd3 Be4 Ne6+ Kb4 c5+ Ka5 Nc7 Be6 Nd7 b8N Bd6 b7 Qc2 Nc6 Nb8 Nce7 Nc6+ Kb6 Na5 b8N Rd3 Nbc6 Rd1 Reb3 Rd3 Ncb4 Ree3 Bg2 Re5 Be4 Nc6 Qf4 Bc4 Qb2 Ra7 Nf6 Na5 Qa2 Ba6 Bh3 Rdd5 Re3 Rd2 Nc8 Bf8 Qf5 Rd8 Nfd5 Bd6 Nce7
1R1Nk3/Nnr1pB2/2n4B/1n1KRbqn/2NQ3R/r3ppN1/3Q3R/1Qb4N b - - 0 1 illegal: No proof kernel
3B2b1/2Kp1N1B/3r2Q1/1RQ3nk/1rrb2p1/Np1Q1r2/R1Qq1N1B/1B3n1B b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Kd3 b5 Kd4 e5+ Kd5 g5 h4 b3 c4 e4 a4 e3 f4 g4 f6 e2 f5 e1R c6 b4 a5 b2 c5 b3 c7 Re3 h6 Rh7 c6 Bd6 h5 Rh3 a6 Bf8 a7 Bb4 Na3 b1R Qd3 Be7 Bf4 Qf8 Ra2 Bb7 c8B Rh2 Nh3 Qd8 Nf2 Rh3 Bh2 Ba6 c7 Bb5 Ba6 Rg3 c8Q Rc1 Qcc2 Rg7 h7 Bc5 h8N+ Kf8 f7 Qc7 h6 Qf4 h7 Qd2 Ke5 Bb6 Kd6 Bd4 Kc7 Rf3 Be2 Ke7 f8B+ Kf6 Nf7 Ne7 h8Q Nbc6 Qg8 Rb8 a8B Nd8 B6b7 Rg5 Be4 Rg6 Bh6 Rb6 Qe8 Bc4 Bg5+ Kg7 f6+ Kh7 Re1 Nf5 Bf1 Rb8 Bg2 Rb4 Bh1 Ng3 Bf5 Nf1 Re5 Qc3 Bae4 Qd2 Rb5 Be6 Nh6 Bg8 f7 Kg7 f8Q+ Kh7 Qd6 Nf7 Bd8 Ng5 Nf7 Kg7 Qdc5 Rd6 Qb1 Rcc4 Bh7 Re6 Qbc2 Rd6 Ne5 Kh6 Nf7+ Kh5 Qe6 Qe1 Qg6+ Kh4 Qcd2 Re3 Q3e2 Rf3 Bb1 Qc1 Qdc2 Qd2 Qg7 Kh5 Qed3 Bb2 Qf6 Bd4 Qfg6+
1bN5/2Rpnr2/pn1R1pQ1/r1B2Bb1/3B1q2/BN3bB1/QQKQ1N2/4kb2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 b4 Kf5 e4+ Kf4 h4 Kg3 c5 Kf2 b6 g5 b7 g4 e6 d3 e5 g3 c6 g2 b5 a6 c7 Nc6 b8Q Nd4 e7 Nf6 e8Q Rh6 b6 Rh7 b7 Nd5 e6 Rh6 e7 Bg7 Nh3+ Kg3 Nf2 g1B Bh3 Nb4 Ba3 Ne6 Qg8 Bh2 e8Q Nd5 Bf5 Rh8 h6 Nef4 h7 Ne3 h5 Ng6 h6 Qh4 Re1 Nd5 Re6 Kg2 Rd6 Bf6 Kc1 d2+ Kc2 Bg5 Qf1+ Kg3 Qd3+ Kg2 Qe6 Nb6 Qa2 Ne7 Qg6 Re8 h8B Qf4 h7 Rg8 Bd4 f6 h8B Rf8 Bg7 Rf7 Bf8 d1B+ Kb2 Bg4 Kc2 Be2 Nd2 Bf1 Rc1 Ra7 Nb3 Ra8 Qa7 Kg1 b8B Bb7 c8N Bf3 Bc7 Rb8 Qb7 Bg3 Qc6 Bh2 Qcc3 Kg2 Qcb2 Rb7 Bb8 Rc7+ Kb1 Rc5 Rc3 Ra5 Kc2 B1e2 Rc7 Kf1 Be5 Ke1 Ba7 Qg4 Bg3 Qf4 Bc5 Bf1 Ba3 Na8 Bd4 Nb6 Rd5 Nc6 Bfc5 Ne7 Rd6 Be4 Ra7 Bb7 Bh4 Qe4 Rd5 Bc7 Rd6 Qf4 Bg3 Bf3 Rb7 Bb8 Ra7 Ned5 Rc7 Ne7 Qd2+
1BQRQ3/pNr1N2K/2n1Q1rR/3p1n2/p3N3/RBb1kbbQ/R4Qb1/3q4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 Nc6 dxc5 Nb8 Ke2 Kf7 Kd3 h5 Ke4 e5 g4 h4 f4 h3 b4 h2 c4 d6 f6 Kg6 f7 Bd7 f5+ Kh7 f6 Kg6 c6 Rh7 c5 Na6 c7 Rh5 c8N Qb6 c6 Qb8 c7 Be6 b5 Ba2 b6 Rh4 b7 Be6 Nh3 Rh5 Qd3 Bh6 f8R Bf7 Rd8 Bb3 f7 Rh4 f8Q Be6 Nf4+ Kh7 g6+ Kh8 g5 Bf7 Kf5 e4 g7+ Kh7 Qh3 d5 Nd6 e3 c8Q e2 Nd2 e1B Ra3 Nb4 Bc4 Bh5 N2e4 Bc3 Bb3 Rg4 Ng6 Nc6 Bf4 Qc7 Qe6 Rc8 b8R Qb6 Nb7 Rc7 Qff6 Qg1 Ne7 Qd1 Qd4 Rg2 Qf2 Bf3 Bg3 Qd2 Rha1 h1B R1a2 Qd1 Rd6 Rg1 Rbd8 Bhg2 Qc8 Nf6 Be5 Nh5 Re6 Ng3+ Kf6 Rd7 Kf7 Nf5 Bb8 Rc7 Nd2 Ne3 Kf8 Bf1 Nf5 Bf6 Red6 Kg6 Kg8 Rg4 Re6 B1g2 Kh8 Kf7 Kh7 Bc3 Rg6 Re4 Rgd6 Re6 g6+ Kf6 Ne7 Kg5 g8Q Kf4 Ne4 Nf5 Qe8 Rf6 Re6 Bg5 Red6 Bh4 Re6 Bg3 g7 Ne3 g8Q Nf5 Qc2 Ke3 Red6 Rf8 Rh6 Rf6 Qge6 Rg6 Qf2+
5Kb1/3B1R2/1B4q1/1N1Q1p2/2RbBkR1/1rnpnB1p/Q1p2BQQ/1r4bN b - - 0 1 illegal: No proof kernel
rn2b2N/pqNpRBR1/3Q1B2/3R1B2/2kp4/p1b1Bnn1/1R4rR/K1Q4Q b - - 0 1 illegal: Other
4r1n1/Q2N2Rn/4RRp1/2N4b/RK1Q1p2/rQR1p2B/pq6/B1bQq1kN b - - 0 1 illegal: No proof kernel
1R3K2/2qr3R/R3b1RN/1Nn2B2/R4NRQ/n3q1q1/5bN1/Rbr1rkB1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 b3 h4 e6 b6 c6 h6 b2 h7 g4 f6 g3 f7 g2 h5 Be7 f8R Qe8 b7 Qd8 f5 Ra6 f6 Bd7 h6 Be8 f7 Bd7 Ne2 g1R Rh4 Ra8 Rg4 Qc8 Bh3 Qd8 Na3 b1B Nf4 Bc2 Ng2 Bh4 Qe1 Ne7 Rfg8 Ra7 f8N Qc7 Ng6 Na6 b8R Bb1 N6f4 Nc8 R8g6 Re8 h8N Nc5 h7 Nb6 d3 Bf2+ Be3 Nc4 Nf7+ Ke7 Nb5 Na3 Qb4 Rc1 h8R Bc8 Nh6 Bd7 Rg7+ Kf6 d6 Bc8 d7 Re7 Nf7 Kf5 d8R Rb7 Rd6 Rd7 Na7 Re1 R7g6 e5+ Kc3 e4 Kd4 Rc1 Rh7 Re7 Nb5 Be6 Qc4 Rd7 Ra8 Rb8 Ra4 Re1 Kc3 Rc8 Bd4 e3 Kb4 e2 Be3 Rcd8 d4 Ke4 d5+ Kf3 Nh6 Rc1 Qd4 Re8 Qf6 Ree7 Qh4 e1Q+ Bd2 Qh1 Be3 Qh2 Bd4 Qg3 Be3 Bf7 Rdf6 Re5 d6 Be6 Bd4 Ree1 Be3 Rf7 d7 Re7 d8R Rd7 Nd5+ Ke2 Rb8 Kf1 Ndf4 Rd8 R4g5 Rd3 Bf5 Rd7 Rg4 Ne4 Bb6 c5+ Ka5 c4 Kb4 c3 Be3 Bd5 Rfa6 c2 Bb6 Be6 Be3 Qd6+ Bc5 Qdd3 Bb6 Qde3 Bd4 Nc3 Kc5 Ne4+ Kc6 Rd5 Ba7 Nc5 Kc7 Rd7+ Kc8 Rb7+ Kd8 Rd7+ Ke8 Rcd1 Kf8 c1Q Rh8 Qcc3 Bb6 Rc1 Rh7 Qce5 Ba7 Qc7 Rd4 Nd3 Ra8 Qe4 Rb6 Bg1 Ra6 Qee5 Rc4 Qc3 Bf2 Nc5 Rca4 Qce3 Rb8 Qgf3 Bg3 Bf2 Bh2 Qg3 Bg1
Q2B1rNB/4r1rB/4qpqN/N4BB1/1k1Bnr2/1q2R3/4R3/2bnKB1N b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 f6 exf6 axb3 Ne7 b4 Ng8 b5 Bd6 Qc2 Bc5 Qd1 Bf8 g4 Bf5 g5 Kd7 g6 Bg4 gxf7 g5 h3 Bh5 Qb3 g4 Qa4 g3 Qd1 Bg4 hxg4 Bh6 Bh3 Bg7 Bf1 Bf8 d4 Kd6 b4 c5 e4 h5 g5 a5 g6 h4 e5+ Kc7 e6 Kb6 g7 a4 d6 g2 e7 c4 e8B h3 d7 c3 d5 c2 d6 a3 Ne2 g1Q Bg5 c1R Rh2 a2 Nd2 Rc6 Nc4+ Kb7 b6 Ka6 b7 Kb5 Na5 Qdb6 d8N Na6 b8N Nh6 g8B Nf5 d7 Ng3 Bh7 Nc5 Qd5 Bg7 f8B Qb7 Beg6 Re6 Bf5 Bh6 Nf7 Re7 d8B Nh1 Nbc6 Nf2 Bg7 Rf8 Bh8 Ra7 Qe4 Ka4 Ng3 Nd1 Re2 h2 b5+ Ka3 b6 h1R Rc1 Rh4 Nh1 a1Q Qg2 Qb2 Rc3+ Qb3 Rce3 Qd7 b7 Qe6 b8B Ne4 Be5 Rf4 Qf3 Qg4 Bd4 Qh5 Qg2 Qg6 Qf3 Ree8 Ne7 Kb4 Ng8 Ree7 Bh4 Bg5 Nfh6 Rg7 Qg2 Rae7 Qf3 Nc5 Qa8 Ne4 Rh3 Rf3 Rg3 Bc1 Bg5 Rf4 Rge3
4R1NR/1N2p2p/1Rp1Nn2/nqN3bk/r3Np2/Q1B3N1/1r1R1K2/b2B3N b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 Kd7 a4 b5 axb5 Nh6 e4 Nc6 h4 gxh4 d6 Ke6 d7 Nb8 d5+ Kd6 Qd4 Ng8 Qa4 Bh6 Qd1 Bf8 g4 Ke5 d6 Bb7 b6 Bd5 exd5 Kf6 Qa4 c6 Qd1 Qc8 f3 Kg6 g5 Qa6 Bf4 Qa4 Bc1 Qg4 fxg4 Bh6 Bd2 Bg7 Bc1 Bf8 d8R a5 b4 f5 b7 a4 b5 a3 b6 f4 d7 h3 d6 h2 Re8 a2 d8N Ra4 d7 Ra8 Qd6+ Nf6 Bd2 Ra6 Ne6 Bg7 d8N Rf8 Kf2 Nd5 Bc3 Ra4 Be2 Re4 Nh3 Ra4 Qa3 Nb4 Bd1 N8a6 b8N Rf6 b7 Bf8 Nd7 Nb8 Ndc5 N8a6 b8R Nc7 Ndb7 Kf7 g6+ Kg8 g5 Nc2 g7 Kf7 g8N Kg6 Rg1 h1Q Rg2 Rf5 Nf6 Bh6 Nfe4 Ne3 Rh8 Rd5 Rbe8 Nc4 Rh2 Na5 Rg2 Kf5 g6 Bg5 g7 Kg6 g8N Qh2 Nbd2 Rf5 Ng3 Nd5 Nh1 Nf6 Rb1 a1B Ng1 Qh5 Rb6 Rd5 Nde4 Rd2+ Ne2 Rb2 Rd8 Qh3 Re8 Qd3 Rg3 Qb1 Rd3 Kh5 Rd2 Qd3 N6d4 Qc4 Nde6 Qb5 N2g3+
3B1K2/6BB/B1N1B1R1/qk2q1B1/2b1bnNN/2nqNr1B/rrQ2b2/1n2R3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 g4 a4 b4 c4 e4 a3 d4 f3 e5 h4 d6 f6 Kg6 a2 Kf7 f5 b6 Kc6 e6 f2 d7 f4 e7 c3 e8B c2 b7 f3 g6 h3 g7 h2 b5+ Kb6 g5 Na6 b8N Bb4 d5 Ba5 g6 Kc5 b6 Nb4 b7 Rh4 d6 Qc7 Bh3 f1Q Nc6 f2 b8B Rh8 Na3 Ne7 g8B Nd3 d8N Be1 g7 Ba6 d7 Nf4 Nc4 Kb5 N6e5 Qa5 Ndc6 Ned5 d8B Nc3 Bh7 Qd3 g8B f1N Ngf3 Nd2 Ne3 Bf2 Rg1 h1B Kf8 Ndb1 Nh4 Be4 Rg6 Ra7 Bb2 c1R N5g4 Rc2 Bd7 Ra8 Be6 Ra7 Bc1 Rb2 Qc2 Ra8 Be5 Ra7 Bd4 Ra8 Kg7 Ra7+ Bgf7 Rf8 Bc8 Ra8 Bfe6 Nfd5 Qd2 Rf3 Bg5 Ka4 Nf6 Rb5 Bhf5 Na3 Nc4 Qd8 Bf4 Qd6 Bh3 Rb6 Ng4 Rb2 Bg3 Qb8 Bc7 Bb5 Rb1 a1Q Bd8 Ba6 B4f6 Qe5 Kf8 Bb5 Qe2 Ra5 Bg5 Nf4 Rc1 Nab1 Nce3 Bc4 Bg7 Kb5 Re1 Qa4 Qc2 Qb4+ Bde7 Raa2 Bb7 Qa4 Bd8 Qa5 Ba6+
BN5b/3qrr1b/3R1n2/4nQ1k/1BBKB1R1/2rbBr1n/1B1B1NN1/6Nr b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 g4 h5 d4 a5 b4 f5 e4 Kf7 d6 Kg6 e5 c4 d5 c3 e6 a4 b6 h4 d7 h3 b5 h2 e7 c2 e8N a3 d6 a2 b7 f3 Ke3 f2 b6 f4+ Kd4 f3 Na3 Rh4 Nf6 Na6 b8B Qe8 d8B Rh6 d7 Nc5 b7 Bd6 Ba5 Na6 d8B Qf7 Bd3+ Bf5 Ba7 f1B b8N f2 Be7 Be4 Bb2 c1R Bd2 Qe6 Qf3 Nb4 Nc2 Qf5 Ne3 Qd7 Ng2 Rc3 Rd1 a1R Bb6 Bf5 Be4 R8a7 Ba8 Ba6 Ne4 f1R Nf2 Nd3 Qd5 Bf4 Bb4 Rh3 B6c5 Ne5 Bb6 Kg7 g6 Kh6 g7 Bh7 g5+ Kh5 g6 Nf6 g8B Rhf3 g7 Bad3 Be6 Bh6 g8B Bg7 Bf5 Bh8 Be4 Rac1 Ne2 Rac7 Rg1 h1N Ba7 Qh3 Qa5 Re7 Bc4 Qf5 Nh4 Qe6 Rg4 Qd7+ Qd5 Rb1 Ng1 Ra1 Bac5 Ra7 Ng2 Rb7 Ra1 Rb1 Ra6 Ra1 Nd1 Nf2 Rd6 Nh3 Nf2 Re1 Ne2 Rh1 Ng1 Rc7 Qe6 Ra7 Qf5+ Ng5 Ne1 Rf7 Ng2 Qe6 Bb6 Rae7 Kc5 Qc8+ Kb5 Qd8 Bbe3 Qe8+ Kc5 Qd7 Qe6 Nh3 Kd4 Qc8 Qd7 Qc7 Qe6 Qd7 Qf5+
b2rRB2/K1pN1Rn1/Q4R2/1b2r3/2R1nr1b/RB2N3/3k1RBn/R3qB1r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 a5 g4 h5 d4+ Kd6 b4 f5 g6 a4 g5 a3 e5+ Ke7 d6+ Ke6 b6 h4 Kb5 Kd5 e6 Ke4 d5 f3 d7 a2 d6 f2 b7 h3 g7 f4 g6 f3 e7 h2 e8R+ Be7 Qa4 Nf6 g8B Rh3 g7 Rh8 Nd2+ Ke3 Bd5 Ne4 g8B Rh5 Ba3 Bf8 Qa6 Qh4 d8R Nc6 b8R Bf5 d7 Na5 Rb6 Nc6 Nc4+ Kf4 Ne3 Ne7 Rf6 Rc8 Bb3 Bh6 Bgd5 Bg5 Ka5 Qg3 b5 Bh4 b6 Ra8 Rc1 a1R Rc4 Rd1 b7 Rd4 b8R Rg5 Bh3 f1B Bb4 f2 Nf3 Be2 Ra1 f1N Ne5 h1R Ra3 Nh2 Bf1 Bf3 Rf7 Bg2 Rb6 Qe1 Rbf6 Bf3 Ref8 Be2 Rde8 Rd8 Qb7 Rh5 Ka6 Bf3 Ka7 Be2 Rc3 Bb5 Rc4 Rg5 Qa6 Rh5 Nd3+ Kf3 Nc5 Kf2 Bg2 Ke2 Be6 Bh7 Beh3 Nf5 Ra1 Ng7 Ra3 Rb8 d8R Re5 Nd7 Bg6 Be7 Kd2 Bf1 Bh5 Bhg2 Be2 Rc8 Bc6 Rf2 Ba8 R7f6 Rb4 R8f7 Rdd5 Bf8 Ra4 Nb6 Rd8 Nd7 Rb4 Rc1 Rd4 Rca1 Rb4 Rb8 Rc4 Rb4 Rd4 R2f3 Bb5 Rf2+ Kc3 Bfc4 Ng5 Nc5 Rf4 Nd7 Ne4 Be2 Kd2 Rc4 Qd1 Bef1+ Qe2 Rf3 Qe1 Rf2+
Brr1qB1N/3N2BR/2BQ2bK/k3b1R1/2R1R2B/n4B1n/qpr3B1/2rq4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 b5 Kg4 e5 Kh5 c5 f4 Kc7 d4 Kb6 a4 b3 g4 h6 f6 c4 a5+ Ka6 f7 c3 g6 e4 g5 c2 d6 b2 g7 e3 d5 e2 g6 e1R f5 Re3 f6 Re7 d7 Qe8 d8R Rea7 d6 Qc6 d7 Qb7 Ra4 Ba3 f8R Bd6 f7 Qc7 Nc3 b1Q Rc4 b4 Na4 b3 Rde8 b2 d8B Qe7 Nb6 Bh3 Bg2 Nd7 Ne2 Bf5 Nf4 Ne5 Nd7 Rc8 Qd2 Qe6 Bh4 Ne7 g8B Nd5 g7 Qa2 Ng6 Rac7 Qd1 Kb5 a6 Ka5 a7 Qe7 Bcg5 c1R a8B Qd8 Re7 Qe8 Bf6 Rc6 Rg1 Rb8 Re4 R6c2 Bf3 Rbc8 Rg5 Nc4 Bh7 Be5 g8B Na3 Bg7 Nc3 Qd6 Nd1 Rc4 Nf2 Bac6 Nh3 Ba8 Bd4 Re4 Be5 Bc6 Qe6 Rd8 Qe8 f8B Rb8 Bf7 Rg8 Nh8 Bg6+ Kg4 Rc8 Bfd5 Rb8 Ba8 Rc8 Bg2 Rb8 Bdc6 h5+ Kf3 Nb1 Rc8 Na3 Rc7 Rc8 Bg3 h4 Kg4 Ng1 Bf3 h3 Bh4 h2 Rb7 h1Q Rc7 Bf7 Bg6 Nh3 Kh5 Rb8 Kh6 Qd1 Bgh5 Bg6 Bg2 Qe7 Bhf3 Qe6 Be7 Rgc8 Bef8 Qe8 Nc5 Qd3 Bf6 Rb4 Rh7 Qd1 Nd7 Rbb8 B6g7
1Qq1n3/pb1qqq2/2nBB3/4B2N/1B2KB1R/2b4B/kr2RRRr/3BN2b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 g4 Kc5 d4+ Kb4 e4 h5 g6 f5 g5 c5 d6 h4 g7 c4 b6 h3 d5 c3 b7 c2 g6 Kb3 d7 h2 d6 Rh4 e5 Ne7 g8R Nd5 e6 Be7 g7 Qc7 d8B Rh5 d7 Bh4 e7 Ne3 e8B Nd5 Nc3 Nf6 Be7 Bf2 d8R Qe5 Qd6 Nh7 Nd5 Bd7 Ra2 Nc6 b8B Bc8 Nf6 Bh4 Bh3 Bb7 Bf7+ Qe6 Rde8 Be1 Ref8 Rh4 Nh5 Bc3 Qd8 Nf6 Be5 Rb8 Bb4 Ne8 Be3 Ra8 Qb8 c1Q Bec5 Qd2 Bcd6 Qd4 Bg6 Qe7 Bf7+ Qc4 Be6 Qd7 Ra1 Qe7 Re1 Ka2 Re2 Qd5+ Kf2 f3 Ke3 f2 Nf3 Qc4 Ne1 f4+ Kf3 Qd7 Beg4 Qc5 Ke4 f3 Rf4 f1Q Be6+ Ka1 Bb3 Qfg1 Bd1 Qgg4 Rf1 h1B Rff2 Qg5 Rg4 Qc1 Rh8 Qg5 g8B Qge7 Be6 Kb1 Bf4 Ka1 Rgg2 Kb1 Bg4 Rh2 Bh3 Ka1 Ba5 Kb1 b4 Ka1 b5 Kb1 Rf1 f2 b6 Ka1 Bb4 Kb1 Rg1 f1Q Bfe5 Qff7 Rf1 Qed8 Bf4 Q8c8 Bde5 Qce7 Rff2 Ba6 b7 Ka1 Qc7 Kb1 b8B Bb7 Qd8 Ka1 B8d6 Rb8 Rh6 Ba6 Ba3 Rb2 Bab4 Bb7 Qc7 Kb1 Qb8 Ka1 Ng7 Kb1 Rh4 Ka1 Nh5 Kb1 Bef5 Ka2 Be6+
5NRQ/B2q1rbR/3R2p1/2KRn1B1/N4bbn/r2B1r2/r2Rb2B/2RR3k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 a5 d4+ Kf6 h6 c5 d6 a4 b6 a3 d7 f3 Ke3 a2 h5 Kg5 e5 Kg4 b7 Kg3 d5 f5 b5 c4 Kd4 f2 e6 f4 b6 g6 h7 f3 d6 c3 h6 c2 e7 Ra5 e8R Na6 b8R Be7 b7 Bf6+ Re5 Qf8 d8R Bh3 d7 Qg7 Bg5 c1R Bd3 Kg2 Ne2 f1B Nbc3 f2 Na4 Rc6 Rc1 Nb4 Rbc8 Be7 b8B Rf6 Ba7 Bd6 Rd5 a1B+ Kc4 Bh2 Nd4 Bg4 Ne6 Rf7 Nf8 Nc6 Qb3 Bae5 Qc3 Bfe2 Rhd1 f1R Rc7 Ra6 Kc5 Nge7 Rd6 Rg8 h8B Kh1 h7 Nf5 Rb7 Bhf4 Rb2 Bh5 Rbd2 Nh4 Re8 Bhg4 d8R Bf6 Rd5 Ne5 R8d6 Rb7 Red8 Qd7 Bg7 Rb3 h8R Ra3 Rh7 Ra2 B7h6 Rg7 Qb2 Rf7 Re8 Bh2 Be3 Bg3 Bg1 Rf3 Bg5 Bf4 Qb8 Bg7 Qd8 Bh6 Qf6 Ra3 Qh8 Ra2 Ne6 Bg7 Rg8 Rb6 Nf8 Rb3 Ba6 Rba3 Bc4 Bf1 Bd3 Be2 Bh2+
r1R2n2/n4p1n/kb2B1rN/1B4Nq/1QB1R2p/2B3N1/1KN1B1q1/3bBBb1 b - - 0 1 illegal: No possible last move, all moves rejected
nKN1bn2/1p2BNB1/pp3Q1q/2pBR3/R4B1B/R1bB1RB1/k4br1/5r2 b - - 0 1 illegal: Other
1KnRq1Bk/2N5/2Bn1q2/1N3r1n/N6R/1Bb2N2/1NN1qB2/1qBQbr2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kd3 Kg7 Kc4 e5 b4 a5 d4 h5 g6 c5 g5 e4 d6 e3 Kd5 c4 d7 a4 b6 f3 b7 h4 b5 e2 b6 e1B Nd2 h3 Bg2 f2 Ngf3 c3 Nc4 f1N Nb2 Bd6 f6+ Kf8 f7 Kg7 f8N Qc7 d8B h2 Nd7 c2 Nc5 a3 Nca4 Nc6 b8N a2 b7 Na5 Nc6 Rb8 Nb4 Qd7 Bb6 Rc8 b8N Bf2 N8c6 Ng3 Na7 Rh6 Nb5 Qe8 Bc5 Kh8 g7+ Kh7 Bb6 Be5 Ba7 Bf6 Kd6 Rh5 d5 Be1 Bf2 Ne7 g8B+ Kh8 g6 Rf5 Rb1 Rd8+ Kc7 a1Q d6 Nc8 d7 Nb7 Bb3 Nh5 Kb8 Qa2 Ra1 Bfc3 Rb1 Nbd6 g7+ Kh7 g8B+ Kh8 Ra1 Qb1 Ra3 Qe2 Ra2 Rdf8 d8N Qa1 Ne6 R8f7 Rf1 h1Q Nec7 Qg1 Bh1 Qg6 Bg2 R7f6 Rh1 Qge8 Rh4 Rf8 Nb6 R8f7 Ra8 R7f6 N6a4 Rf8 Bg5 c1Q Nc2 Qab1 Bh6 Qg5 Bh1 Qf6 Bc1 Rf7 Nh2 Rg7 Bc6 Rg1 Nf3 Nf7 Kb7 Rf1 Rb8 Nfd6+ Ka8 Ne7 Rd8 Nec8 Kb8
3N3r/bBNB1n1b/RBn1NRbk/N1Q5/1NBp4/4B1n1/3Bn3/4Kb1q b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 h4 c5 hxg5 cxd4 e4 f4 g6 f3 g7 Ra6 g5 Rc6 g6 Rc5 Qd2 Rg5 Qd1 Rg3 fxg3 Nf6 g4 Ng8 g5 f2+ Ke2 Ba6 Bg2 f1B+ Ke1 Bc8 Bh3 Be2 Bg2 Bg4 Bf1 Bf5 exf5 Qb6 Ra3 Qc7 Ra1 Qd8 c4 e5 b4 h5 b6 d5 b7 h4 b5 e4 b6 h3 c5 e3 c6 e2 f6 d3 f7+ Ke7 c7 d4 Be3 a4 Nf3 a3 Bg2 h2 Nfd2 a2 Nb3 Rh7 Na3 Be6 c8B Qc7 Nb5 Rh3 Rf1 h1B Na5 Bb3 Qc1 Nh6 g8B Qh2 g7 Bc4 g6 Nc6 b8B Nf5 b7 Kf6 Bbf4 Rh8 b8B Ng3 Bbc7 Bc5 f8N Ba7 Bb6 Qh5 B2d5 Be4 Ne6 Qh1 Bd7 Kf5 Nbc7 d2+ Kf2 d1B Ke1 Bcd3 Qc5 B1c2 Bd2 Kg4 Bfe3 Kh5 Bf7 Bc4 g8N Bed3 g7+ Bg6 Nh6 Bb1 Kf2 e1N g8N Nf3 Ne7 Ng5 Ke1 Ba6 Bg8 Nf7 Bc4+ Bbf5 Ned5 Bb1 Nb4+ Bbf5 Rb1 a1N Rd1 Nb3 Ra1 Nc1 Ra4 Nd6 Nf7 Nce2 Nfd8 Nf7 Bd5 Bh7 Ra2 Bfg6 Ra4 Ng1 Rf6 Bf1 Bc4+ Ng5 Ba6 Kh6 Bb7 N1e2 Nb3 Qe4 Ra6 Qh1 Na5 Nb8 Nf4 Nc6 Bc4 Nf7 Nfe6+
R2B4/pBR3b1/q1NRRRnR/N5rp/p2bBB2/3nQKp1/2r5/1k2B3 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 Ba6 exf5 Nd7 a4 bxa4 g4 Bc8 f6 Nb8 f7+ Kd7 f5 g5 h3 Kd6 f6 Bf5 Kf2 Kd7 gxf5 g4 Ke1 g3 Be2 Qc8 Bf1 Qa6 Ne2 Qc4 Ng1 Qg4 hxg4 Kc8 Rh6 Kd8 Rh1 Kd7 Ke2 Kd6 d4 c5 b4 e5 g5 e4 b5 e3 g6 h6 b6 c4 b7 c3 g7 c2 Qd3 Be7 f8R Na6 b8B+ Nc7 f7 Bh4 f6 Bg5 Nd2 Bh4 Nc4+ Kd7 d6 Ke6 d7 Kd5 d8R+ Ke6 Nf3 Na6 Nfe5 Nc5 Bd2 c1Q Nc6 Qb1 Rfe8+ Ne7 g8B Qe1+ Kf3 e2 Bh7 Qd1 f8R Qc2 f7 e1B Bbf4 Bf2 Be4 Rc8 Bg2 Bf6 Be1 Rg8 Rc1 Bg7 N4a5 Qc4 Qe3 Qa6 d5+ Kf6 d6 Ng6 d7 Nd3 Rh5 Rc7 Ra8 Bg1 Rd5 h5 Re7 Bf2 Rfb8 Rcc8 d8B Rc7 Rb6 Rc8 Qd2 Bd4 Qe3 Rc7 Rd1 Rc8 Rc7+ Ke6 Re5+ Kd6 Re6+ Kc5 Nb3+ Kc4 Rd2 Kc3 f8R Qb5 Rff6 Qa6 Rd1+ Kc2 Rd2+ Kb1 Nba5+ Qb5 Nb4 Qa6 Rbd6 Rb8 Nbc6 Rb2 Re2 Nh8 Rh6 Rc2 Ref6 Ng6 Bh3 Re8 Bc8 Re5 Bb7 Rg5 Rde6 Ra2 Rc2 Rb2 Rc5 Re2 Rd5 Rc2 Rdd6
B1b2kN1/4Qn2/3n1NBR/n2BR1BK/n7/qNr1r3/3bBq2/1BNqN1n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 a5 Kf3 f5 e4 h5 g4 d5 c4 a4 b4 a3 e6 a2 b6 h4 b7 h3 b5 h2 b6 f4 e5 d3 c5 d4 g6 d2 g5 d3 Kg4 f3 c6 f2 c7 Rh6 g7 Bd6 g6 Ba3 Qe1 d1Q+ Nf3 d2 Nc3 Ra6 Be2 Bd7 c8B Ba4 e7 f1N Bf5 Bb2 Bb1 Nc6 b8N Ba3 b7 Rh3 Nd7 Qb6 b8N Bb4 Nc5 Ng3 Nbd7 Ne4 Nb3 Nd6 Qh4 Qa7 Kh5 Nh6 g8N Nhf7 g7 Qf2 Ne1 Re3 Qe4 Na5 Qb7 Ng5 Ndf6+ Kf7 Qa7 Bd7 Qc5 Bc8 e8B+ Ke6 Bb5 Kf7 Bc6 Ra7 Ba8 Rc7 Ncd5 Bc3 Nf4 Rc6 Qa3 Bb4 Nfd3 Rc3 Nh7 Ke8 e6 Ngf7 e7 Nh8 Rg1 h1N Rg6 Nhf7 Rh6 Ng3+ Kh4 Ngf5+ Kg4 Nh4+ Kh5 Bc5 Qb4 Nf3 Qh4 Ng1 Qg5 Kd7 Nhf6+ Ke6 e8B Ba3 Bc2 Bb4 Rb1 a1Q Qc5 Nd8 Bg6 N8f7 Rb2 Qa3 Bb1 Qc2 Ra2 d1N Bd2 Nb2 Ndc1 Na4 Ra1 Rf3 Bg5 Qd1 Ra2 Rfe3 Rd2 Rc2 Rd5 Bd2 Qb4 Rcc3 Qh4 Nb5 Re5+ Kd6 Nd5 Kd7 Ndf6+ Kd8 Qe4 Nbd6 Qb7 Rf3 Ne7 Rfe3 g8B Nh8 Bd5 Nhf7 Ne4 Ke8 Nf6+ Kf8 Neg8 Qb4 Qa7 Qa3 Qe7+
1qk5/1nB4N/1rR1BN1q/br2Rb1b/K1Nq4/bRN1R1N1/1r3n2/2Q2R1N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 h5 Kc3 c5 Kb3 a5 f4 e5 g4 h3 b6 h4 f6 e4 b7 h2 d6 h3 g5 e3 g6 e2 g7 e1B f7 Bf2 f5 Nc6 b8R Rh4 f6 Ra7 d5 Qc7 Ra3 Rh5 Bc4 Ra6 Rb5 Nge7 g8N Bd4 Nh6 Ne5 Bf4 Qa7 Ng4 Qb7 Ne2 Kd8 d7 N5g6 Nf2 Bc3 Rf1 h1B Ng3 h2 Rb6 Bb4 Rc6 Nf5 Bd6 Be7 f8N Bf3 f7 Ne5 Nh7 h1Q Nf6 Ng4 f8N Qc7 Be5 Nd6 N8h7 Rg5 Qd2 Qh6 Nfh1 Nf2 Qc2 Bf8 Qd1 Bh5 Qd2 Ke7 d8N Qa7 Nf7 a4+ Kc2 Bcg4 Re3 a3 Kb3 Ba5 Ka4 a2 b4 a1Q+ Ba2 c4 b5 c3 b6 c2 b7 c1R b8R Rc3 Qc1 Rc2 Rbb6 Nb7 Bc7+ Be6 Ne5 Qd4+ Rb4 Bd7 Nc3 Rb6 Bb3 Qb8 Ba2 Qc4 d6+ Ke6 Bb3 Rb2 Ba2 Bc8 d7+ Ke7 d8R Qd4 Bg8 Be6 Nc4 Rgb5 Nge4 Bc8 Rd5 Bcg4 Rb3 Bf5 Nd7 Ke8 Be6 Ba3 Re5 Ke7 Neg3 Ke8 Bd6 Kd8 Bc7+ Kc8 Ndf6+
1R4r1/1rrRBQBk/B4R1N/5R1b/4RKBq/2nr4/5brn/3NrBqB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 Kf3 h5 g4 a5 e4 f5 d4 Kf7 b4 Kg6 b6 h4 d6 h3 e5 c4 b7 h2 d5 a4 e6 a3 e7 c3 e8B+ Kg7 d7 a2 d6 c2 b5 Rh5 g6 Rg5 b6 Kh8 g7+ Kh7 Bh5 Be7 Bb2 c1R Qb3 Re1 Nc3 Kh6 Nge2 Nc6 b8R Nf6 g8B Nd5 Nd1 Nc3 Bd5 Kh7 b7 Bf8 Rg1 h1R Ng3 Rh3 Rh1 Rg8 g5 Ra7 Bg4 Bh6 Rb1 a1R Qc4 Qe7 d8B R1a2 d7 Bg7 Ba1 Bd4 Rb6 Rg2 Bb2 Qf6 Be7 Bf2 d8R Be6 Rb5 Bf7 Rd7 Bh5 Re8 Qh6 b8R Rc7 Ne3 Rb1 Nd1 Qf6 Ba1 Rb2 Ra5 Rbb7 g6+ Kg7 Rf8 Bd4 Be4 Rg1 Nb2 Nb5 Be2 Qh4 Rdd8 Rh8 B2d3 Ne5+ Ke2 Nf3 Rd7 Kh6 g7 Nh2 g8B f3+ Kd2 f4 Nf5+ Kg6 Nd1 f2 Nh6+ Kg7 Bg2 f1Q B8d5 f3 Ra6 f2 Rf5 Kh7 Bde2 Bb6 Bg7 Ba7 Raf6 Rg8 Bdf3 Bd4 Qf7 Nc3 Ba6 Rg3 B2h3 Qe1+ Kd3 f1R Bg2 Bf2 B2h3 Ne2 Ke4 Nc3+ Kf4 Ne4 Bfg2 Nc3 Be4 Rd3 Bhg2 Nf3 Rh3 Nh2 Bh1 Rgg3 Bd5 Rfg1 Bdg2 Rge3 Rf3 Qf1 Bh3 Re1 Re3 Rg3 B3g2 Qg1 Bf1 Rg2 Re4
RRqR1r1k/q4R2/2B1qn2/p1BQ3B/2n4B/3Nrb1b/B1KnN1R1/5Bb1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 Kd2 Kg7 b4 c5 g4 h5 b6 a5 b7 f3 b5 c4 g6 f4 b6 h4 e5 h3 g5 f2 e6 f3 e7 c3+ Kc2 h2 e8B Bc5 d6 Rh7 d5 Rh8 d7 Be3 d6 Bd2 Ra2 Bf4 Be3 Nf6 Qd5 Nh7 Bc5 Bd2 Nh3 Qf6 d8R Nc6 b8R Ne5 b7 Nc4 d7 Be3 Nf4 Rf8 Nd3 Qe6 Bf7 Ra7 Ra8 Kh8 b8R Nf6 Rg1 h1Q Rg2 Bb7 Ra4 Qg1 g7+ Kh7 g8B+ Kh8 g6 Bc6 Kb3 c2 Nc3 c1Q Ne2 Ra6 Rab4 Bd4 R4b7 Rb6+ Ka2 Rb3 Be8 Qc3 Bgf7 Qc2+ Nb2 Re3 g7+ Kh7 g8B+ Kh8 Bh5 Qcf5 Rh2 Qh3 Kb1 Qg7 Bg2 f1N Nd3 f2 Kc2 Nfd2 Bf1 Qh7 Rg2 Qhf7 Qg5 Bf3 Qd5 Qhg4 Rdc8 Qh3 d8B Qc7 Bd7 Qcb6 Bc6 Qa7 Rf7 Qhg4 Bde7 Qh3 Rd8 Qc8 Rg1 Qhe6 Bh3 f1B Rg2 Nh7 Bh4 Nf6 Rg5 Re5 Rg6 Bg1 Rg2 Re3 Rg3 Qab7 Rfg7 Qef7 Qe6 Nb6 Qe4 Qe8 Ba2 Qee6 Qd5 Nbc4 Rf7 Qa7 Rgg7 B1g2 Rg5 Bh1 Bf1 Bhg2 Rg6 Bh3 Rg2
5r2/n3rq2/R3bBrp/3R2bN/N1q1n1qB/1k1BBRRQ/2R3KB/1bR5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 e5 f4 c5 Kf2 a5 b6 c4 g5 h6 f6 c3 g6 a4 b5 a3 f7 c2 b7 h3 f5 h2 f6 e4 g7 e3+ Kg2 e2 b6 e1R Qg4 a2 Bd3 Qc7 Nc3 Qc5 Nge2 Qa3 Ng3 Rd1 Nh5 Bf5 Qh3 Bg4 Na4 Nc6 b8R Ra5 b7 Be6 Rc8 Be7 f8B Ra6 f7 Qb3 Be3 Nf6 g8R c1Q Rg3 Re1 Bg7 Na7 f8R Ne4 Rff3 Qcc4 Bf6 Rf8 Rc7 Rc6 b8B Rb6 Rc1 a1Q Rc2 Qd1 Rc6+ Kd7 Bh4 Bg5 d6 Qa2 d5 Qe2+ Rf2 Qg4 Bc7 Re2 Rhc1 Re1 Rf3 h1B+ Kh2 Rb2 Ra6 Rb6 Bb8 Bg2 Bc7 Bf1 Bb8 Be2 Kg2 Bd1 Rd2 Bc2 Re2 Bb1 Rec2 Qb2 Bc7 Qf6 Bb8 Qf7 Bc7 Ke8 d7+ Ke7 d8B+ Kd7 d6 Kc6 d7 Kb5 Bf6 Kb4 d8R Kb3 Bb8 Bf5 Bh8 Bh7 Bd2 Nc3 Rd5 Re7 Be3 Bf5 Bhe5 Rg6 Bf6 Be6 Bbf4 Qf5 Rg4 Ne4 Bh2 Qf4 Rgg3 Qf5 Re1 Qg4 Rec1
1NBB1n1N/bp3N2/1b1Qq1R1/1k4Bb/r2n2N1/2r5/RnB1B2n/K2N1rB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 Kd2 h5 Kc2 c5 Kb2 e5 f4 h4 g4 e4 a4 b3 g6 c4 d6 Kc6 d7 h3 d5+ Kc5 a5 e3 d6 e2 f6 e1R f5 h2 f7 Bh6 f8N Kc6 g7 Re8 g5 Qe7 d8B Ra6 f6 Bd7 f7 Kc5 g6 Ba4 d7 Qd6 Nh3 Kb4 Bd3 Nc6 Nf2 Rb6 a6 Re4 a7 Nd4 a8N Nf6 g8B Rc6 g7 Kb5 Ng6 Qe6 f8B Nh7 Ra2 Be3 Bc2 c3+ Ka1 Rc8 Bb4 Nf8 Rg1 h1N Nb6 Ng3 Bc5 Nf1 Ng4 Rh1 Nh8 Nh2 Bf7 Rc6 g8B Rf4 Rg3 Rhf1 Bh5 Rc7 Bgh7 Bg1 Bcf5 c2 Be3 Re4 Beg5 c1B B7g6 Bce3 Nc3+ Kc6 Bh7 Ref4 B7g6 Bb5 Bc2 Be2 Bgf5 Bf3 Qe1 Be2 Nd1 Kb5 Qf2 Re4 Qf4 Bef2 Qd6 Rf4 Ba3 Rc3 Bc5 Re4 Bde7 Bf3 d8N Rf4 Nd7 b2+ Kb1 Be2 Ndf7 Be3 Nb8 Re4 Nf2 Rh4 Bf3 Re4 Bg2 Bh5 Bd8 Rh4 Bd5 Rf4 Ng4 Bef2 Ra6 Be3 Ka2 b1N Ka1 Nd2 Ra2 Nc4 Bf3 Nb2 Bcb6 Ne2 Ba7 Bb6 Rg2 Ra4 Rg3 Qb3 Bc8 Qe6 Rg2 Bc7 Bf2 Bb6 Bc5 Bf2 Bce3 Nd4 Rg3 Be1 Bg1 Bf2 Ne3 Nc6 Bf4 Bd4 Rg6 Ba7 Ng4 Bfb6 Bfg5 Nd4 Be2+
2qk2KR/2bpRQ2/3BR3/1NrNNrpR/4B3/2nnq2N/2b5/n2N1qNR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 a5 Ke4 g5 f4 a4 c4 d3 h4 a3 b4 d2 h6 a2 h5 Qc7 f6 Qd6 Kf5 e4 Kg6 e3 f5 e2 h7 e1Q c5 Qh2 f7+ Ke7 b6 Ra6 h6 Qef2 b5 Ra3 b7 Qd4 b6 Qde5 f6+ Kd8 c6 Be7 Kg7 Qh4 f8N Na6 b8N Qb4 b7 Rh3 c7+ Ke8 Bd3 Qbc5 Qb3 d1Q Nc6 Qee2 b8N Qee3 Na7 Qee5 Nbc6 Rh2 Ne6 Nb8 Nf4 Qe6 Nb5 Qe4 Ba3 Qde2 Ne5 Ba6 c8N Kd8 f7 Bd6 Nfh3 Bc7 Ne7 Q4e3 Nd5 Rf2 N1c3 Ne7 Be4 Qf1 Re1 a1N Nd1 Nbc6 Qc4 Re8 h8R Rf5 f8R Nb4 h7 Nd3 Rf7 Qc6 Qb3 Qa8 Bd6 Qc8 Rf6 Rf8 Re6 Bb7 Nb6 Nd5 Re7 Nc3 Qf7 Bc6 Nd5 Bb7 Rg8 Ba8 h8R Bc6 Rh5 Re8 Na3 Ba4 Nb5 Bc2 Rgh8 Rf8 R8h6 Rh8 Rhe6 Rh6 Kg8 Rhf6 Rh8 Rh6 Re2 Rh4 Reh2 Rhf4 Bg2 Rc4 Be4 Rc6 Nhf2 Rc4 R2h5 Rc5 Nfh3
1BQ3nk/qr1N3N/1B1N1qN1/1B2R2B/qb1N4/2NR1q1b/Br3pp1/K1n5 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 b4 c5 e4 f5 h4 Kf7 d4 g5 Kd2 Kg7 Kc2 a5 Kb2 f4 e6 g3 h5 a4 d6 f3 e5 g2 d5 g4 e7 c4 e8B g3 h6+ Kh7 d7 f2 b6 Qf6 d8N Bb7 d6 Ne7 b5 Ra7 d7 Qf4 e6 Nbc6 Be3 Qf7 Rh3 Nf5 e7 Na5 Qc2 Qh5 Bf7 Qe2 e8B Bc8 b7 Nb3 Nf3 g1Q b8N g2 b6 Rc7 b7 Be7 Ne6 c3+ Ka2 a3 d8N Qh1 Bh5 Qa6 Bc4 Qa7 Nf7 Qd1 Neg5+ Kg8 Qc1 c2 h7+ Kg7 Bc6 Nh6 B6d5 Be6 Nd7 Rb8 h8N Ng8 Ng6 Bd6 Rg3 Bh3 Nh7 Qdd4 Rg5 Qf6 Re5 Be7 Bc5 Bf8 Nd4 Bd6 Qd1 c1Q Qc2 Qcf4 Bd3 Qf3 Be6 Rbc8 b8B Rb7 Bb6 Bb4 Bb5 Rc3 Qc1 Re3 Qc8 Re2+ Nc2 Rd2 Nc3 Re2 Rd1 Nc1+ Kb1 a2+ Kb2 Rd2 Nd6 Re2 Ngf8 Kh8 Rd3 Re3 Nd4 a1Q+ Kc2 Q1a6 Kb1 Re2 Ba2 Rb2+ Ka1 Qa4 Ng6+
2Br4/3br3/1KB2Np1/rRB1knbn/2RN2qB/Rr3p1R/1qQ1B2R/R7 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 c5 h4 f5 d4 a5 b4 c4 e6 Kd6 h5 a4 e7 c3 e8B g6 b6 g3 b5 c2 h6 a3 b7 g2 b6 a2 h7 Ne7 Bc6 Qd7 Nc3 Qc7 Rh3 Ra6 Nf3 Ng8 Ne4+ Ke7 d6+ Ke6 d5+ Kf7 Kd4 g1Q+ Be3 c1R d7 f4 d8B Bg4 d6 Ke6 d7 Rc3 Qc2 Ba3 Bh4 Be7 d8R Ra8 Rc8 Nh6 Nf6 Nd7 b8R Rd8 h8R Ng8 b7 Ra6 Ra8 Bf5 b8R Nh6 Rb5 Qb7 Rh2 Rb6 Ra3 Qg4 Bg1 Kd6 e4 Rb3 Be2 Qb8 Kc4 Rb7 Bc5+ Ke6 Nd4+ Ke5 Rc7 Ra7 Bb7 f3 Bc8 Ra5 Nh7 Bg5 Nf6 Ra6 Rh7 Re6 Rc6 Re7 Rh3 Kf4 e5 Qb7 e6 Ke5 Re1 a1R Rc1 Rg7 e7 Rf7 e8B Re7 Rh8 Ra2 Ra1 Qb8 Ng8 Nf6 Rh7 Nh5 Nf6 Qb7 Rc7 Qb8 Bc6 Bd7 Rh2 Nf5 Rh8 Re3 Kb4 Rb3+ Ka5 Qa8+ Kb6 Qa4 Ra7 Qb4 R7a4 Qc3 Rc4 Qb2 Rh7 Rd3 Rac3 Ra5 Rca3 Rb3 Be1 Nf4 R7h3 Nh5 Bh4
b1R3Q1/BBn3Nb/r1nbR3/N4p1r/1k3pN1/N2B3q/pN1K2Np/5BB1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 g4 Ke7 e4 f5 b4 h5 c4 a5 g6 d5 g7 a4 b6 a3 b7 a2 b5 d4 b6 h4 g5 d3 c6 Kd6 g6 Kc5 e5 h3 e6 h2 c7 Bd7 c8N Ba4 e7 Qd7 e8N Nc6 b8B Kb4 b7 Nd8 c5 Be7 c6 Rh3 c7 Qe6+ Be3 Bb5 Qb3+ Ka5 Ba7 Qe5 b8N Rh6 Nb6 Nf6 g8N Bf8 c8B Nd7 g7 Qe7 Na4 Bc4 Nb2 Qd6 Ngf6 Be6 g8B Nc5 Ng4 Qe7 Nf3 Qh7 Na3 Rh3 Kd2 Na6 Bb7 Rh5 Ne1 Bd6 Bg1 Nc6 Ng7 Nc7 Ng2 Bf7 Qc4 Bg6 Rc1 Qh6 Qe6 Bh7 Qe8 Kb4 Bc4 Nd4 Qg8 Nc6 Baf2 Ra6 Ba7 Rg5 Re1 Qh3 Re6 Rh5 Nd7 Qh4 Nc5 Qg3 Nb3 Qh3 Kd1 d2 Na5 Rh4 Kc2 d1B+ Kd2 Rh5 Bcd3 Bf3 Bc8 Ne8 Bgf2 Ne5 Bfe2 Be4 Rc1 Bf3 Bg1 Ba8 Rc7 Nc6 Bb7 Rh6 Rc8 Nc7 Bf1 Rh4 Na4 Rh5 Nb2
2N2q1k/2qNRn2/2r4B/N1q5/3p2n1/Rn4BR/BKQ1N2B/nQ3b1Q b - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 e4 a5 exf5 c5 a4 e6 axb5 Qg5 d4 cxd4 b6 Qf6 b5 Ba3 b7 Rh6 Bxa3 Ra6 b6 Rh8 Bc1 Qg5 Bxa6 Qf6 Bf1 Qd8 Kd2 Kf8 f4 d5 c4 g5 Kc2 Kg7 h4 e5 f6+ Kh7 h6 a4 h5 e4 f5 g4 c5 g3 f7 g2 f8Q e3 f6 e2 c6 e1Q c7 d3+ Kb2 d2 f7 d4 Na3 Qdh4 Bc4 Bd7 c8N Bf5 Qc5 Nc6 b8B Qhe4 b7 Na5 Bg3 Qe5 Rh4 Q1e3 Re4 Qc7 Re7 Qee5 b8N Qf6 Nd7 Bh3 Qf1 Qg5 Ne2 g1Q Bd5 Qg2 Nc4 Qf3 Qe1 Bg2 f8Q+ Qf7 Qh1 Bh3 Bh2 Qfg7 Qf4 Bf1 Qfe4+ Qf5 Qb1 d1N+ Ka2 Ne3 Kb2 Ng4 Bf7 Nb7 Na5 Qf8 Qcc2 Nc5 Be3 Ne5 Bf2 Nf6 Bfg3 Nfg4 Bc4+ Nf7 Ra2 Kg8 h7+ Kg7 Bb3 Rg8 h8B+ Kh7 h6 Rg6 Bhe5 Rc6 Bef4 Kg8 h7+ Kg7 h8R Qd5 Qd2 a3+ Ka1 Qde5 Rh3 Qed6 Bh6+ Kh8 Rb2 a2 Qdc2 Qe5 Bc4 Qd5 Rb3 Qf5 Kb2 a1N Ra3 Qg5 Ba2 Ncb3 Nd6 Qc5 Nc8
bBQRBKb1/8/2Q3q1/2NN3k/1r3B2/Rb1b1Rr1/b2Q1nN1/2nNBr2 b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 b5 a4 e5 fxe5 g5 axb5 g4 c4 g3 c5 Qa5 hxg3 Qc7 g4 Qd8 g5 Bd6 Rh6 Bc7 Rh1 Bb6 cxb6 Qe7 Rh6 Qf6 Rh1 Qd8 Kd2 a5 Kd3 d5 g4 h5 e4 f5 e6 h4 e5 f4 g6 f3 g7 f2 g5 a4 e7 Kf7 e8R Kg6 e6 h3 e7 a3 b7 a2 b6 h2 b5 Qc7 Nf3 Rh5 Rd8 Ra3+ Nc3 Bh3 e8Q+ Qf7 Bd2 Ra4 Be1 Rc4 Qd2 Nf6 g8N Nc6 b8B Rb4 b7 Ng4 b6 Na5 Nf6 Nb3 Bf4 Bg2 b8Q Rh3 b7 Rg3 Nfe4 Kh5 Qc8 Qg6 b8B Bh3 Rg1 h1B Qec6 B1g2 Nd1 Nc1+ Kc2 d3+ Kc3 Bh1 Nh4 B3g2 Be2 f1B Nc5 Bf3 Rg2 Nf2 Rh2 Bhg2 Rh3 Bg4 Bf3 Bh1 Be4 Be6 Bf5 Bf7 Bd7 Bg8 Be8 Bf3 Rh1 B1e2 Rf1 Be4 Ng2 B2f3 Rb1 a1R Rb3 Be2 Ra3 B4f3 Qa2 d2 Qb2 Bc4 Kd4 Ba2+ Ke5 d4 Qc3 d3 Qd4 Bae6 Kd6 Ba2+ Ke7 Be2 Kf8 Rab1 Nc3 d1B Qe3 Ra1 Qd2 Bdb3 Nd1 Bbd5 Qd6 Ba8 Qdc6 Nh1 Rf3 Nf2 Qa4 Bf1 Qac6 Rd4 Nb2 Nb3 Qe2 d2 Bfe5 d1B Bc3 Bf7 Qd3 Qe4 g6 Rc4 g7 Qg6 g8N Rb4 Ne7 Bg8 Bf4 Bfe2 Qe3 Bd3 Nd5 B1c2 Qe2 Rf1 Be1 Nc1 Qd2 Bcb3 Nd1
1bN1Bk2/q2Rb1B1/Q3qrr1/b3NbRQ/3Q3R/Q2n1q2/NR6/1KBn4 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 f4 e5 d4 g5 Kd2 c5 Kc2 g4 h4 g3 h6 c4 h7 c3 f6 g2 b6 e4 d6 e3 f5 e2 d5 e1B f7+ Kd7 f6 Ra5 b7 Ra4 h5 Ne7 h6 Qe8 Rh4 Bd2 Qe2 Nf5 Qa6 Ng7 Nf3 g1B Ne5+ Kd8 d7 Ba7 Bb5 Rg8 h8Q Nf5 h7 Nc6 b8R Be7 f8Q Rg6 f7 Rf6 Rb6 Bb8 Ra2 Be1 Rb2 Ra2 Ba4 Ra3 Rb5 b3+ Kd3 c2 Nc3 Rg6 Na2 Ne3 Qfg7 Bc3 f8Q Nd1 Qgf7 Rf6 Qh5 Ba5 Qhg7 Rg6 h8B Nb4+ Kd2 Rf6 Qgg4 Rg6 Qd4 Rf6 Rc5 Rg6 Qff3 Qf7 Qfc3 Qe6 Bb5 Nd3 Bc6 Kc7 d8N Kd6 Qcb4 Ra4 Qbc3 Rb4 Be8+ Rb6 Ndc6 Rf6 Na7 Rg6 Rb1 b2 Rb5 Qg4 Rc5 Bf5 Qcb4 Qf3 Qbc3 Rc6 Nc8+ Kc7 d6+ Kd8 d7 Rcf6 Ra1 b1Q Rb5 Qb3 Rb1 Bac7 Rb2 Qe6 Qca3 Bc5 Nb6 Ke7 d8R Kf8 Nc8 Be7 Rbd5 Ne3 Kc3 Nd1+ Kb3 Ba5 Rd7 N1f2 Nc3 Nd1 Ka2 Rg3 Ka1 Rgg6 Na2 Nc5 Be3 Rg4 Qdd3 Be4 Nc4 Rgg6 Rg5 Bf5 Qd5 Nd3 Ne5 Qf2 Bf4 Qa7 Qd4 c1Q+ Rb1 Qc2 Bc1 Qcc6 Rb2 Qcb7 Kb1 Qf3 Bg7+
KQ2bnQR/3N1B1r/3B3Q/5kr1/4r1r1/2Q1r3/RBNr2b1/bR1N1bR1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Kf2 g5 Ke1 f4 h3 Nc6 h4 Nd4 Qc2 Nf5 gxf5 g4 Qd1 Qg5 hxg5 Kd7 Nh3 Kd8 Ng1 Ke8 Kf2 Kd7 b4 h5 e4 c5 d4 a5 d6 h4 b6 a4 b5 c4 f6 Ke6 d5+ Ke5 d7 h3 d8R a3 f7 c3 g6 h2 b7 c2 b8Q+ Kf6 g7 a2 d6 Ra7 d7 Rb7 Qc7 Rb6 e5+ Kg6 e6 Rh7 e7 Rb7 e8Q Nh6 g8R+ Bg7 f8B+ Nf7 b6 Ra7 b7 Ra4 b8N Re4 Bb4 Kf5 Na3 Ng5 Bd3 Ne6 Bd6 Kg5 Nh3+ Kf5 Rf1 h1R Qd2 Rg1 Qf7+ Bf6 Bc4 Ba6 Rg7 Bb5 Rh8 Nf8 d8Q Be8 Qg8 Bc3 Qe3 Bf6 Bf7 g3+ Ke1 g2 Kf2 Be5 Nd7 Bc3 Qdb8 Bb2 Bd2 c1R Qcc3 Rd1 Bc1 Rd3 Rd1 Re1 Qed2 g1R Rg2 Rdd4 Rb1 Rd3 Rh2 Rg6 Qe3 Reg1 Re1 R1g4 Rg1 Rd1 Qed4 Rde1 Qdg7 R6g5 Qh6 R1e2+ Kf1 R2e3 Nf2 Rgg7 Nd1 a1R Re2 R7g5 Ke1 f2+ Kd2 f1B Rf2 Re2+ Kd3 Ra2 Rh2 Ba1 Rf2 Re7 Kd4 R2e3 Kc5 R7e4 Kc6 Bg2 Kb7 f3 Ka8 Rb2 Re2 f2 Rc2 f1B Rd2 Rb5 Ra2 Rd5 Bb2 Rd2 Nc2
KNRBn3/1N2rr1R/5qB1/N1BnN3/k3n1q1/2QQ1pqR/3QR1b1/3b4 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Be7 gxf5 g4 h4 Bg5 hxg5 exf4 Kf2 Kd7 d4 c5 e4 a5 b4 h5 e5 h4 f6 h3 f7 c4 f8Q c3 b6 h2 g6 g3+ Kf3 g2 Ke4 a4 b5 c2 g7 a3 d6 a2 Kd5 Ra3 b7 Rf3 b6 Qf6 Be3 c1N Qd3 Rh4 Na3 Rh7 Nc4 Rh5 Na5 Qh6 Qf6 Rh4 e6+ Ke8 e7 Kd7 e8R Na6 b8Q Qh8 b7 Rf2 Nf3 g1Q Re4 Rh7 Ne5+ Ke8 Kc6 Ne2 d5 Qg3 Rd1 a1Q Bc5 Nc3 Re2 Ne4 Qh6 Qa2 Qc7 Ngf6 b8N Bg4 Kb7 Qc4 Ka8 Nb4 Rb1 Qf8 g8R Re7 Rb3 Qd4 Qc6+ Kd8 d7 Ne8 Qcf6 Kc7 d8N Rf3 Qfh8 Qf6 Ndb7 Bh5 Bh3 Rf2 Bf5 Bg4 Re3 Bd1 Re2 Qc4 Bg6 Rf3 Bd6+ Kb6 Bc5+ Kb5 d6 Ka4 d7 Nd5 d8B Qd4 Qg5 Qdg1 Qg7 Qg4 Rh8 Q1g3 Rh3 Rf1 Rb6 Rf2 Rc6 Rf3 Rc8 Rf2 Rg1 h1B Rge1 Bg2 Reh1 f3 Rh7 Rf7 Qgd2 Rf1 R1h3 Re1 Rf2 Re3 Re2 Nec3 Nec6 Ree7 Ne5 Ne4 Qgh6 N4d6 Q2c3 Ne4 Qhd2
3rBn2/1b1N2B1/Bq1q4/bR1NQN1R/Q1QrN3/1K1n1p2/1B3kr1/1qR5 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 d4 Ke7 Kd2 Kd6 Kc2 g5 h4 f5 e4 c5 h6 f3 a6 f2 b6 g4 a7 c4 h7 c3 b7 f4 h5 f3 h6 g3 e5+ Kc7 d6+ Kb6 d7 g2 e6 Ba3 e7 Kc6 e8B Kd5 Ba6 Ke4 d5 f1R d6 Bb2 Kb3 c2 Ne2 g1Q Nbc3+ Ke5 Rh5+ Qgg5 Nd4 Rg1 Nf5 Qd2 Ne4 Nc6 b8N Bc3 Bb2 Kf4 Rc1 Bb7 Qe2 Qa5 d8Q Ne5 d7 Nf6 Qc4 Qd6 Qa4 Rg3 Qc8 Rg2 d8R Nfd7 Qcc4 Nf8 Nd7 Nd3 Rb8 Bb4 Bg7 Qab6 Bb2 Rhg8 h8Q R8g4 h7 Rh4 Qhc3 Kg4 h8B Ba5+ Qab5 Kh3 Bg7 Kg4 Qe5 Kh3 Rd1 c1Q Qbb4 Qb1 Rc1 Bd5 Rb7 Rd8 a8N Bc6 Rb8 Bb7 Nc7 Kg4 Nd5 Kh3 Rc8 Kg4 Rc5 Kh3 Rg5 Rf4 Rb5 Rh4 Neg3 Rd4 Qa4 Kh2 Nf1+ Kg1 Nd2+ Kf2 Rh5 Bc6 Nb4 Ba8 Nd5 Bb7 Ne4+
2R1q1B1/2Q1Q3/R1N1Q1r1/3Q1K2/1bnb4/1R2Np1k/rB2B3/bB1nb1Nb b - - 0 1 illegal: No possible last move
1b2Q1KN/Rp1r3B/5Q2/n1Bk3Q/rR1nR3/1r2Br1b/1Nr2N1Q/Bq6 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 Ke2 Kd7 Kf3 e5 Ke4 g5 h4 b3 f4 g4 a4 b2 h6 g3 d6 Kc6 a5 g2 a6 Ne7 h7 Qc7 f6 Qa5 f5 Bg7 h5 Nd5 a7 Bh6 d7 Bg7 d8Q Qa2 f7 Re8 f8Q Qa6 h8B Qb6 f6 Bh3 h6 Qb5 h7 Nd7 f7 Ne3 Ra4 Bf6 Bd3 Qb6 Na3 b1R Nc4 Re6 Nb2 Bg7 Qh5 Qa6 Qb8 Qb5 Rb4 Nc4 Be3 Rd6 Qfd8 Qb6 f8B Na5 Qf6 Rc1 Be7 Nf8 Bb1 Ne6 Qbe8+ Kc7 c6 Rd7 B7c5 Nd4 Rh2 Rc3 Rh1 Rc8 a8R Rb3 Ra7 Bh6 Bg7 Bf4 h8N Qb5 Rh2 Qf1 Bd3 Qb1 Bc2 Rf7 Kd5 e4 Rh1 Bd6 Qee5 Rd7 Qh2 Rf8 Bf4 e3 Bh7 e2 Be3 Ne6 Re4 e1R Rb4 Rc1 Re4 Bf5 Nh3 g1R Nf2 Rg4 Rd1 Rh4 Rdd4 Bh3 Ra4 Nd4 Rb4 Nf5 Ke6 Rc2 Qe7 Rf4 Be5 Ra8 Kf7 Rf3 Bf6 Nd4 Kg7 Kc8 Kg8 Bb8 c7 Rd6 Qf8+ Kd7 Be5 Ke6 c8Q+ Kd5 Qce8 Rd7 Qf6 Nc4 Nbd3 Nf5 Ra6 Ra7 Ba1 Ra8 Rab6 Ra4 Nb2 Na5 Ra6 Be5 Qhh4 Bb8 Ra7 Nd4 Qhh5+
B5k1/1N1R1QbR/3rnQ2/4K1b1/qRbn4/B2NQ2p/RN1r3B/n2bB3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 c5 d4 c4 f4 c3 f6 h4 d6 c2 b6 b3 b7 b2 f5 Be6 g6+ Ke8 g7 Kf7 d5 Qa5 g5 Qc3 g6+ Ke8 d7+ Kd8 f7 Ke7 d8R Qb4+ Qd4 Qb6 d6+ Kf6 d7 Qd6 Bg2 Nh6 g8R Ba2 g7 Qb4 Nf3 Ke7 Bd2 c1B Nc3 Bc4 Qe3 Ra2 Na4 Na6 b8B Nc7 Ne1 b1B+ Nd3 Bc2 Be1 Bd1 Nab2 Qa4 f6+ Ke6 Rh2 Nf5 Rb1 Rh5 Rh8 h3 g8Q Rh6 Rh7 Bg7 Qh8 Bd2 f8Q Nd4 f7 Kf6 Qfg8 Nce6 f8B Rg6 Ba3 Rh6 Qe2 Bg5 Qe3 Kg6 Rc8 Kf6 d8N Rg6 Nb7 Rh6 Qd8+ Kf7 Qd5 Rg6 Qhd8 Rf6 Rc5 Rg6 Qf6+ Kg8 Rc7 Rh6 Rd7 Rg6 Nf2 Rh6 Nbd3 Rd2 Rb4 Rg6 Nb2 Rh6 Nfd3 Rg6 Qef4 Rh6 Ke3 e4 Bf2 Nb3 Qfe5 Rc2 Nd6 Rh4 Qf6 Na1 Bf3 B5h6 Qh5 Nc5 Kd4 e3 Ba8 e2 Nb7 e1N Qg6 Rh5 Qe3 Ne6+ Ke4 Nf3 Be1 Rd5 Bf4 Be2 Nd1 Nfd4 Qh5 Rd6 Ke5 Rb2 Rf2 Bg4 Bh2 Bg5 Rd2 Rb1 Ra2 Rb2 Qg6 Rd2 N1b2 Bd1 Qf7+
4B1r1/1N3N2/Q5rn/2nQK3/1rQ1N1b1/p2BkBQN/1R1q2R1/1n1br2R b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 h4 Nc6 g4 Kd7 b3 Ke8 f5 Qd6 Bb2 Qc5 Be5 Qa3 Bf4 gxf4 g5 Bh6 g6 Nb8 Nh3 Qd6 Ng1 Bg5 hxg5 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kd6 b6 e5 b7 h5 g7 c5 g6 a5 f7 c4 f8Q+ Ne7 g8B h4 b4 f3 g7 a4 f6 f2 b5 c3 b6 c2 f7 c1N Nd2 h3 Ra2 a3 Bd3 h2 Nh3 Nc6 b8R f1B b7 Na7 Qh5 Kc7 d6+ Kb6 d5 Kc5 d7 Be2 d6 Nf5 Bh7 Rg8 Bg6 Qa5 d8N Nb3 Qg5 Bd1 d7+ Ne7 Qe8 Nf5 Qe6 Nb5 Qa6 Nh6 Bh5 Ra7 Bf3 Ra8 Qg4 Ra7 f8N Ra8 Ng6 Nc3+ Ke3 e4 Kf4 Kd4 Ne5 e3 Nef7 e2 Ne4 e1R Rg2 Nb1 Qg3 Rf8 g8B Nc5 Bh7 Rg8 Bg6 Rg7 Bgh5 Rg6 Qg4 Ng8 Kf5 Ke3 Ke5 Nh6 Qge6 Bc2 Qec4 Qb4 Ne6 Qd2 d8Q Bb3 Qdd5 Bd1 Ned8 Be6 Rc8 Bf5 b8Q Bg4 Qbd6 Rb8 Nb7 Ra8 Rc6 Rf8 Rb6 Rfg8 Rf1 h1R Rb2 Rh2 Rh1 Be6 Ng1 Rh4 Nh3 Bd7 Qe7 Rf4 Qh4 Bg4 Qg3 Rff6 Rb5 Rb6 Rb2 Rb4 Nfd6 R6g7 Be8 Rg6 Nf7
1QRn4/R4Qn1/3n1b2/r2NB1q1/2R4p/NQnKB1N1/3b1Q1R/kr1B3r b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 b4 h5 d4 e5 d6 a5 f6 Ke6 d7 Kd5 f7 Kc4 b6 c5 b5 e4 b7 a4 d5 a3 d6 e3 b6 a2 g6 Nh6 g5 Nc6 b8B Ra5 b7 Be7 f8Q Nf7 g7 Bf6 Na3+ Kc3 g8N c4 g6 h4 Bd2+ Kb2 g7 c3 Rh2 c2 Ne7 f3+ Kd3 f2 g8Q e2 Nd5 e1B Be3 Bd2 Be2 f1N Qg3 Rg8 Qf2 Ng3 Qg7 Qe7 d8R Nh5 d7 Nd6 Qf7 Ng7 Rc8 Nd8 Rc4 Qe5 Bg4 Qg5 Ne2 Re8 Bc7 Re5 Ng3 c1N+ Kd4 Rb5 b8Q Ne2+ Kd3 Nc3 Qa4 Rb6 Bd1 Rb7 Bcb6 Rf5 Bbd4 Rb6 Be5 Rb3 Rc1 a1R Rc7 Rb1 Ra7 Ka1 Qc4 Rb5 Qb3 Ra5 Rc2 Nde6 d8R Rf4 Qe2 Rf1 Qf2 Rh1 Rc8 Nd8 Kd4 Na4 R2c4 Nc3 Kd3
B1nrNn1q/B1NQ1N2/1B1qb1k1/B5Rr/1r2q3/1N3QpR/1R5n/3Q3K b - - 0 1 legal: proof: b4 b5 g4 h5 e4 hxg4 a4 a5 c4 d5 cxd5 f5 exf5 e6 axb5 a4 Ra3 Bc5 Ra2 Bb6 Ra1 Ba5 bxa5 Rh6 Bh3 Rh4 Bf1 Rh8 Ra2 Kf7 f4 c5 Kf2 g5 Kg2 e5 h4 g3 d4 c4 d6 a3 b6 c3 d5 e4 d7 g4 a6 c2 h5 e3 d6 e2 b7 e1Q f6 Qe6 f5 Qe5 h6 Qa1 a7 Rh7 Ne2 Qf8 d8Q Qc3 d7 Qfb4 Bd2 c1Q Nd4 Qcc4 Ne6 Qbb3 Rh3 Qf4 Kh1 Rg7 h7 Qcb2 Bg2 Qbf3 Ba5 Rg5 Nd2 Rh5 Nb3 Qd6 Ng7 Ne7 Ne8 Qbd4 Rb2 a2 Qc7 Qfc6 d8B Be6 Bd5 Nd7 b8B Qc2 Qb7 Qdc3 Bdb6 g2+ Kg1 Ne5 Qd7 Ng6 h8N+ Kf8 f7 Qe4 Nf6 Kg7 f8R Kh6 Ne8 Kg5 f6 Kf5 B8c7 Rd8 a8N Nc8 f7 Qce5 Bb8 Kg5 Kf2 g1N B8a7 Nf3 Kg2 g3 Nac7 Nh2+ Kg1 Qc3 Rg8 Kf5 f8Q+ Qf6 Qfg7 Nf8 Ba8 Qh6 Qc3 Qg7 Ng6 Qh8 Qcf3+ Kg5 Ne5+ Kh6 Nf7+ Kh7 Nc5 a1R Rb1 Ra3 Rb2 Ra4 Kh1 Rc4 Rg5 Rb4 Rf5 Kg6 Nb3 Qc5 Re5 Qd6 Rg5+
Nbq2N2/4RKpN/RB1Q1Q2/2Q5/3n3R/1B3bnk/1R3nN1/1Br1bn1n b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 f5 e4 d5 exf5 b5 axb5 a4 cxd5 Ra5 bxa5 Rh4 Bh3 Rh6 Bf1 Rh8 Ke2 Kd7 Ke3 e5 Ke4 c5 f4 g3 d4 a3 h4 a2 a6 g2 d6 c4 Kd5 e4 f6 c3 f5 e3 f7 c2 b6 e2 h5 e1N f6 Qe8 b7 Nf3 a7 Rh6 a8B Qe1 Ne2 g1B Nd2 Qh4 Nc4 Ng5 Be3 c1N Qc2 Rh7 h6 Qh5 Nb6+ Kd8 d7 Rh8 h7 Qg4 Rh4 Ne4 Qc5 Nd3 Nf4 Bd6 f8N Nh6 f7 Ke7 Ng2 Kf6 d8Q+ Kf5 Re1 Bf4 Qdd6 Ndf2 Bd3 a1N Bb1 Nc6 b8R Nb3 Rb7 Rg8 h8R Nd2 Nh7 Nf1 f8N Nh1 Re2 Bfh2 Rb2 Bf2 Re7 Be1 Bb7 Qh3 Na8 Ng4 Ba6 Bf4 Bc4 Ngf2 Bb3 Bb7 Rh6 Kg4 Ke6 Bg3 d5 Nd4+ Kf7 Bc6 Qf6 Bb8 d6 Neg3 d7 Bb7 d8Q Bf3 Ng6 Re8 Qdd6 Rc8 Ngf8 Rc6 Qcd5 Rc1 Q5c6 Nb5 Bb6 Nd4 Qcc7 Qh5+ Rg6+ Kh3 Qcc5 Qf5 Rg4 Nc2 Ra4 Qc8 Ra6 Nd4 Ng5+ Kg4 Rh6 Be2 Ngh7 Bf3 Rg6+ Kh3 Rg4 Nd2 Rf4 Ndf1 Rh4+
qr1N3R/2K3Rn/1BbQb1n1/7n/R1k5/2n1Q2q/1Qqp3B/NNBBN3 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 f4 cxd4 h4 g4 e4 Bh6 e5 Ba6 f6 Bc8 f5 Bg5 hxg5 Qc7 Rh3 Kd8 Rh4 Ra6 f7 Rf6 exf6 Qb6 Kd2 Kc7 Rh1 Kd6 Ke1 Qd8 Ke2 Kc5 Kd3 h5 Ke4 e5 f8B+ d6 b4+ Kb6 Kd5 h4 c4 h3 f7 d3 g6 e4 g7 h2 f6 g3 Nf3 g2 Ra4 g1N Ne1 d2 Be2 e3 c5+ Kc7 c6 Kb6 c7 Qd7 Qc2 d1N Qb2 Qh3 Be7 Bd7 c8Q Nf3 f8N Nc6 f7 Nce5 Qe8 Ng6 Ne6 Ng5 f8N Nh7 Nd4 Bf5 Bf3 e2 Ndc2 Bg4 Rg1 h1B Na1 Bg2 Ne6 Ngf6+ Kc4 Bf5 g8R Nc3 Nd8 d5+ Kd4 Be6 Bc5+ Kc7 Bg4 Nh5 Bb6+ Kd6 Rh1 Be4 Rg7 Rg8 Ng2 e1Q Bd1 Qe2 Ne1 Qc2 Rh2 Bd7 Rh1 Bef5 Qe3 Bfe6 Rh2 Bc6 Rh1 Ne7 Rh2 Kd7 Kc5 d4 Rh1 d3 Rh2 d2 Rh1 Ke8 Kd6 Ng6 Kc7 Rf8 Bd4 Rg8 b6 Kf8 b5 Rh8 Ra2 a4 b7 a3 b8B Ke8 b6 Rg8 Nf7 Ke7 b7 Rh8 Bb6 Kf6 B8a7 Rb8 Nd8 Kf5 Qh6 Ke5 Qe3+ Kd5 Rh2 Ra8 b8Q Kc4 Ba5 Bcd5 B7b6 Bc6 Bb4 Bed5 Bd6 Be6 Qb7 Rb8 Rh1 Qf1 Bh2 Qh3 Qb4+ Kd5 Qd6+ Kc4 Rb2 a2 Rb5 Ngf8 Ra5 Ng6 Ra4+ Kb5 Rh4 Nhf8 Nb3 a1Q Qa8 Nhf4 Qa2 Qhf5 Qb2 Qa8 Bg3 Qh5 Rg4 Qhf5 Rhh7 Nh5 Rh8 Nh7 Ra4 Qf3 Bh2 Qh3 Ra5+ Kc4 Na1 Qe4 Ra6 Qc2 Ra4+
bN2B3/1k2r3/R1QB1N2/1n3Qp1/N1b1q2r/q3RB1N/b4K1Q/Qbr2R2 b - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 f5 Ng1 f4 Ra2 f3 Ra1 Nd7 h4 g5 h5 Ne5 Rh3 Bd6 Rh1 Ng6 hxg6 Bf4 gxf4 Qd7 Kc3 Qe7 Kc2 Qd8 Kd3 Kd7 Ke3 h5 b4 a5 d4 c5 d6 h4 d5 a4 b6 h3 f5 a3 b7 c4 b8Q h2 f6 a2 b5 c3 f7 c2 f8Q Ne7 b6 Rh5 b7 Ra5 g7 Rh7 g8N Rh6 Nh3 Rc5 Nc3 Ng6 Na4 Qf6 Bg2 f1B Kf2 Ne5 e4 Rc6 Bf4 Ba6 Rf1 Nf7 e5 h1B Qd4 c1R Qc5 Qh8 Qg7 Bd3 e6+ Kd8 d7 Nd6 Nf6 Nb5 Bd6 Qh7 Qg6 Bc2 Qf5 Bb1 Qa8 Rh4 b8N Rc7 Qa5 Rcc4 Qc3 Bb7 Qce5 Ba8 Qh2 Bc2 Rae1 a1Q Re3 Bb1 Rc1 Qg8 Ke1 Rh8 Bf8 Rc3 Rd1 f2+ Ke2 f1B+ Kf2 Be2 Rf1 Rc2 Be4 Qe5 Bg2 Ba2 Be4 Rc6 e7+ Kc7 d8R Rc1 e8B Ra1 d6+ Kb7 Bc2 Be4 d7 Rh4 Bd1 Re6 Rc8 B4d3 d8Q Qe4 Qdd4 Rc1 Rc6 Bdb1 Bd6 Re7 Qa1 Qb3 Ra6 Bc4 Bf3 Qa3 Qc6+
1b6/5r2/K2Rk1n1/1N1bN1bQ/1N1p1b2/N5B1/nRQbb2Q/BRBqB3 b - - 0 1 legal: proof: f4 b5 d4 c5 dxc5 f5 a4 h5 axb5 e5 fxe5 a5 g4 f4 Bh3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Qc7 Bg4 hxg4 Na3 Qb6 Nb1 Qd8 Kd2 Kf7 Kc3 d5 h4 g5 e4 f3 b4 g3 e6+ Kf6 h5 a4 h6 g4 e7 f2 e8N+ Ke7 h7 f1B e5 a3 f6+ Ke6 c6 a2 f7 g2 c7 g3 b6 Qd7 b7 Bc4 b5 Nf6 b6 Ng4 Qd2 Nc6 b8R Na5 b7 Bf1 Nd6 Qb5 Na3 Qa6 Kb4 Bd7 c8Q Bb5 c4 Rg8 h8B Nf6 c5 Qa8 c6 Nc4 c7 Bh6 f8B Rg7 Nf3 g1B Qh2 g2 Rb1 Ba7 Rd1 a1B Rd3 Bc6 Ndb5 g1B Be7 Ne4 Bh4 Re7 Be1 Bf4 Qe8 Bgf2 c8Q Nc3 Qeh5 B2e3 Rd4 Bd2 Rb2 Nb6 Ka5 Na2+ Ka6 Nc4 Qc7 Rf7 Rb1 Ke7 e6 Ne5 Bg7 Ng6 Ne5 Bg5 Bh8 Bdf4 Rd2 Bc3 Rd8 Rg7 b8B Rf7 Rdb2 Bcd2 Qc8 Be8 Rd6 Bed7 Qg8 Be8 Qgh7 Bed7 Bc7 Qd8 Bg7 Bb8 Bh8 Ke8 e7 Bg4 Bg7 Be2 Bf6 Nh4 Qc2 Qd7 Bb6 Ng6 Bbf2 Qh3 Bg3 Qf1 Bef2 Qd1 Be1 Bg4 Nd3 Be2 Nb4 Rh7 Bh8 Kf7 e8N Ke7 Bd4 Rf7 Nf6 Ba8 Bc3 d4 Ng4 Bg2 Ne5 Bd5 Rb3 Bc7 Ba1 Bb8 Rd7+ Kf6 R3b2 Ke6 Rd6+
6k1/QBB1pq2/KbQq1R1N/R1Q1rqR1/3q1BN1/1qN2b1N/3b1n2/1B6 b - - 0 1 illegal: No possible last move
1n1q1B2/5Q1b/2N1Bb1r/3ppNBN/2RQQ1nr/2K4R/R2N4/4kbrQ b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Kd2 Kf7 f4 Kf6 c4 g5 h4 e5 a6 d6 c5 d3 a7 g4 c6 g3 c7 g2 h6 Qe8 h5 Qd8 b6 Ba6 c8R Qc7 h7 Qc5 b7 Qc6 h6 Qc4 Nf3 g1R Ra2 Nc6 b8N Nge7 Bh3 Qa4 Nd4 Rg3 Kc3 Rg1 Nd2 Rhg8 h8Q+ Bg7 h7 Bb5 Qg4 Qd1 Rh2 Re8 Qg8 Rf8 h8Q Rf7 Qe8 Ng8 Qd7 Nh6 Qhd8+ Ne7 Nbc6 Ba6 Qe2 Ng4 Qe4 Rb8 a8Q Rb6 Qh1 Rf8 Qab7 Rh8 Qg8 Bb5 Qgd5 Rh4 Qde4 Bc4 Qa7 Bg8 Qa4 Bh7 Qb4 Kf7 f6 Ra6 Nf5 Kg6 f7 Kh5 f8B Bf6 Qbd4 Rb6 Na7 Nc6 Qe6 Nb8 Rc4 d5 Qd7 Qa4 Nc6 Qa7 Qg7 Qe7 Qf7+ Bg6 Nh6 Qd8 f5 Kg5 Rg2 Bh7 Rg3 Bg7 f6 Ra6 Nb1+ d2 Nf5 Bh8 Re3 d1B Nd2 Be2 Rd3 Nf2 Bg4 Bf1 Rh3 Rb6 Ne3 Ra6 Be6 Ng4 Nf5 Rb6 Qd7 Ra6 f7 Bg7 Nb1+ Kh5 Bg5 Bf6 Nd2 Qc7 Bb4 Bh8 f8N Nf2 Na7 Qd8 Bg8 Rh6 Ne6 Bf6 Nf4+ Kg4 Be6 Bh8 Rd3 Bg7 Nc6 Bf6 Ne3+ Kg3 Qf7 Ng4 Nh5+ Kf2 Bf8 Ke2 Nf5+ Kd1 Qeg2 Ke1 Rh3 Kd1 Qf3+ Ke1 Qfe4+
NB1nQR2/4N3/1r1Rq3/1nNq1b2/1KnQ1Q2/1RpbBB1B/2p5/k3Q1r1 b - - 0 1 legal: proof: f4 g5 c4 d5 a4 dxc4 h4 b5 hxg5 f5 g6 e6 axb5 Kd7 e4 Bc5 g7 Qe7 g4 Bd4 g5 Qd8 g6 Bf6 exf5 Bg5 fxg5 Ke8 b4 Kd7 d4 Kd6 Kd2 Kd5 Kc3 c5 b6 a5 b5 h5 b7 e5 f6 e4 f7 h4 f8R h3 b6 e3 Ne2 h2 Qe1 a4 Nd2 a3 Nb3 a2 Bh3 Ra6 Rb1 Nf6 g8N a1N g7 Ng4 g6 Nc6 b8B Nge5 b7 Nc2 Ne7+ Ke4 g8B Na3 g7 Bf5 d5 Rb6 Ned4 e2 Rg1 h1B d6 Rh5 d7 Rg5 Rf1 Rg1 Ne6 Bg2 Nc7 Nb5+ Kb2 Kd3 Bd5 Bge4 g8Q c3+ Ka2 Kc2 Be3 c4 Nc5 Nd6 Ka3 Bd3 Rb3 Nb5+ Ka4 Rg2 Bf3 Rg1 Nc8 Qg5 Na8 Nd8 Ne7 Qh5 Qg5 Qf7 Qf4 Qd5 Qeh4 e1Q Kb4 Qe2 Rd1 Qe1 Rd2+ Kc1 Qhg3 c2 Qf2 c3 Qe2 Ne6 d8Q Nc4 Qe8 Nd8 Qd4 Nb2 Qf2 Kb1 Qg3 Qe2 Qe1+ Ka2 Ba7 Nc4 b8Q Nf7 Qbf4 Nd8 Qeg3 Ka1 Qe1+ Qd1 Bb8 Qe6 Qh8 Bde4 Rd6 Bd3 Qeg3 Qd2 Qhd4 Qg2 Qgh4 Qgg8 Qhg3 Qd5 Qgh4 Qge6 Qe1+
b2RQ3/3RNB2/1b1bQ1nb/N1QN1b2/1qp3p1/1R4BN/1Br4k/1KRr4 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 f4 Bb7 g5 Kd7 f6 Nc6 f5 Bc8 h4 Qe8 h5 Nd8 h6 Qh5 g6 Nf7 gxf7 Qxh6 Ra3 Qh5 Ra1 Qh2 d4 Kd6 b4 c5 b6 h5 b7 a5 b8B+ Kd7 b5 e5 d6 g5 b6 g4 b7 e4 d5 a4 Qe2 e3 Kd1 a3 Kc2 a2 Bb2 h4 Nc3 h3 Rc1 a1B Kb1 Bh6 f8N+ Ke8 d7+ Kf7 d8R Ne7 d6 Ng6 d7 Qf4 Nd5 h2 Nh3 Qb4 Bg3 Ra2 b8N c4 Bg2 Rh7 Nc6 Rg7 Rhf1 h1B Na5 Rg8 Qe1 e2 Rf3 Rh8 Rb3 Rg8 Qf2 e1B Qc5 Bf2 Qc6 Bb6 Qc5 Nh4 Ng6 Rh8 Nge7 Ng6 Rg8 Rh7 d8R Rg7 Rd7 Rh7 Bbe5 Rc2 Rgd8 Bd4 Qd6 Bdc5 Bb2 Rg7 Bf1 Be4 Bg2 Bb7 Qe5 Ba8 Bh1 Rg8 Bg2 Re8 Bh1 Bd6 Qe6+ Kf8 f7 Bd3 Rc3 Kg7 f8Q+ Kh7 f6 Bf5 Nec6+ Re7 f7 Re8 Rb3 Re7 Qf6 Re1 Qe6 Rg1 Qfe8 Rd1 Nc3 Kg7 Ne7 Kh7 Bd5 Kg7 Qe3 Kf6 Qc5 Bdf4 f8Q+ Ke5 Bf2 Bg3 Qc6 Bh2 Bf7 Bg3 Ncd5+ Ke4 Be3 Kf3 Bf4+ Kg2 Qe6 Bh2 Bg3 Kh1 Be1 Bd6 Bg3 Kg2 Qh8 Kh1 Qd4 Kg2 Qc5 Kh1 Bh4 Kh2 Bg3+
kQ4Rq/6bn/1Rnb2n1/1npN1QNQ/B1N5/p1Nr3q/5B1B/1B3RK1 b - - 0 1 illegal: No possible last move, all moves rejected
N1b1Q1RR/2k1B3/1Bq2Qb1/1p2N1q1/brN5/1b1Q1Rp1/3B2K1/RB1n3n b - - 0 1 illegal: No possible last move
8/2q1B2N/2nRR1n1/1KBqnQp1/3RQ1Q1/r2BnN2/b1pN3Q/k4qR1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 h4 a5 h5 g6 h6 Bg7 hxg7 Ra6 Bh3 Rf6 Bf1 Rf5 gxf5 Bb7 Qa4 Ba6 Qd1 Bc8 d4 Kf7 Kd2 Kf6 Kc3 c5 Kc4 h5 e4 f2 b4 f3 e5+ Ke7 f6+ Kd7 f7 h4 f8B h3 e6+ Kc7 d6+ Kb6 d7 g5 e7 a4 e8Q h2 d5 a3 d6 a2 Nd2 Nh6 g8N Ng4 Bd3 f1N Qe4 f2 Be7 Rh3 Ngf3 Ng3 Nf6 f1Q Nh7 Qc7 d8R Ne2 d7 Nf4 Rg1 h1Q Ba3 Ng6 Qde2 Ba6 Re1 a1N Qf5 Bc8 Qee4 Nc6 Re2 Nc2 Re3 Kb7 b6 Ka6 b5+ Ka5 b7 Ka4 b8Q Ba6 Qc8 N4e5+ Kd5+ c4 Kc5 Qhg2 b6 Bb5 Re1 Ne3 b7 Qh1 Bb4 c3 b8Q c2 Re2 Bc4 Qfg4 Qd6+ Kb6 Qh2 Bc5 Qd5 Qgf5 Nb4 Re1 Ka3 Re2 Ba2 Kb5 Kb2 Qfg4 Nf7 Qbg3 Nc6 Qg2 Qg3 Qh2 Qgd6 Qc4 Qe4 Ne5 Nd1 Qce6 Qc7 Bc4 Rc3 Nef3 Qcf4 Bd3 Ka1 Re1 Qc7 Qa8 Ra3 Qef5 Na5 Qc6 Qd4 Re6 Nfe5 Qce4 Ne3 Ra8 Qd5 d8R Qd4 Rdd6 Nac6 Ra4 Qd5 Rd4
4RR2/kQp1R1q1/2nq2B1/3N1Q1Q/2NBnp2/b1Bn2BK/3Q2N1/3n1bb1 b - - 0 1 illegal: No possible last move
NN3BrR/1k2N1QK/1p3Br1/r2ppb2/Q1nQ3b/1RB3R1/N6n/Q3q3 b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 bxa5 Na6 e4 Nb8 exf5 Qc7 Qd5 Qb6 Qd1 Qd8 f4 g5 g4 h5 Be2 Nf6 fxg5 Bg7 g6 Ng8 g5 Bf8 Bg4 hxg4 Ke2 d5 Ke3 Kd7 Kf4 Kc6 a4 g3 c4 b6 h4 e6 g7 g2 a6 Qd7 a5 Rh5 a7 Qb7 f6 Rh8 h5 Bd7 g6 e5+ Kg5 Qa6 f7 Bc8 h6 Nd7 h7 Bd6 f8B Ne7 Kh6 Kc7 g8Q Rb8 a8Q Qa7 c6 Bc5 a6 Nf6 g7 Rb7 Bb2 Bd6 c5 Bf5 Nc3 Bg6 Nf3 g1R Na2 Rg2 Qd4 Rf2 Bc3 Ne8 Rab1 Bf7 Rb3 Qb8 a7 Kc8 c7 Rg2 Rg1 Rg5 Rg3 Nc6 Qa4 Bg6 Nd4 Na5 Nc6 Bc2 Qf7 Bf5 g8N Nf6 Qg7 Nc4 Nge7+ Kd7 c8R Qc7 Re8 Rg8 h8B Qc8 Nb8+ Kc7 c6 Bc5 Qg6 Ng4+ Kh7 Nh2 Bf6 Bf2 Rd8 Bd7 Qe4 R5g6 Qd4 Bh3 Re8 Qf5 Rd8 Qe4 Re8 Bf5 Rc8+ Kd6 c7 Qb1 Re8 Qe1 c8Q Rc7 Qca6 Rc5 Q8b7 Rb5 a8N Ra5 Rg1 Bh4 Rg3 Nd2 Qf1 Nc4 Qa7 Qe4 Qa1 Qe1 Qb7 Qd1 B8g7 Rf8 Nec6 Qe1 Qa7 Rf7 Rg8 Rf8 Rh8 Rg8 Qf7 Qh1 Ne7 Qe1 Nbc6 Kd7 Bf8 Kd6 Qg7 Kd7 Nb8+ Kd8 Nec6+ Kc8 Ne7+ Kb7 Qe4 Qf1 Qd3 Qe1 Qd4
3NB3/RQN1p3/p2b1B2/k2N2Q1/2rq2pN/1r5n/3QR1Rr/1b1qRK1B b - - 0 1 legal: proof: g4 d5 e4 b5 c4 h5 cxd5 hxg4 b4 f5 exf5 a6 a4 Kd7 axb5 Rh3 b6 Ke8 b7 Rh7 b5 Nc6 b6 Na7 bxa7 Rh8 b8Q Kd7 d4 g5 f4 c5 h4 c4 f6 g3 h5 c3 h6 c2 f7 g4 h7 g2 f5 Qe8 f6 Bh6 f8N+ Kd8 f7 Qa4 d6 Qc6 d7 Qc5 d5 Be3 Qd2 Qd6 Bb2 Qh6 Bb5 Qf6 Qb7 Rb8 a8B Bg5 Rh2 Qc6 Bf6 Qc5 Nc3 Be3 Nf3 Qc4 Nh4 Bd4 Qg5 Be5 Kf2 g1R Re1 c1Q Rg2 Nh6 Bc6 Rg8 h8R Rh1 Ba4 Rh3 Bc6 Qd4+ Kf1 Bc7 Re2 Nf5 Qb2 Qa4 Nhg6 Nd4 Bb5 Rg3 Rhh2 Rg2 Nh4 Ne6 Bb7 Bf4 Qd2 Kc7 d8R Kb6 d6 Qe4 d7 Bd6 B5c6 Nf4 Ne6 Qd4 Bb5 Rg3 Bh1 Rh3 Rhg2 Qd1 Re8 Bb7 Rc8 Bf3 Rc7 Ka5 Ra7 Rgc8 d8N Rh2 Be8+ Rc5 Nc7 Nh3 f8Q Rb4 Be5 Be4 Qf3 Bb1 Qb7 Rcc4 Bf6+ Rb5 N3d5+ Rbb4 Qc2 Rb3 Qcd2+
b1QbbN2/p6n/R1Q5/RK1p3r/B2Q3R/1n2QN1k/2r1pR1B/2B1N2r b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Qc7 g5 Qb6 g7 Qg6 hxg6 Nc6 Rh3 Nb8 Rh6 Ba6 Rh1 Bc8 Kd2 h5 Kd3 e5 Kc4 Ke7 b4 h4 f6+ Ke6 b6 Kf5 b5 d3 f7 d6 b7 h3 b6 h2 Ra5 d2 Nf3 Kg4 Kb5 e4 c4 d5 c5 e3 c6 Bb4 f8N Bd6 c7 Rh3 Na3 Rh4 Nc2 Nd7 b8Q Ndf6 b7 Rh3 Nce1 Bf5 c8Q Bc5 Qc6 Bd4 Qe5 Rc8 b8B Ne7 g8R Bb6 g7 Bd7 g6 Rh5 Qb3 d1B Qd4+ Ne4 Be2 Nf5 Rf1 h1R Bh2 Bd8 Rf2 Kh3 Qbc3 Bc2 Bd1 e2 Qce3 Nf6 Rh8 Be8 g8R Bb3 Rh6 Nh7 g7 Bc2 Rg6 Bb3 Rg4 Rc7 Rh8 Bc2 g8Q Ba4+ Kb4 Bb5 Ba4 Ba6 Qge6 Bb7 Kb5 Ba8 Rhg8 Rc8 R8g6 Rc7 Qcd7 Rc2 Qec6 Ng3 Qcc8 Ne4 Rga6 Nc5 Qdc6 Nb3 Rh4#
2QK1Q2/bN2p1BN/nB4B1/N4r1R/2k2nNr/3pR3/q2Qpr2/1Q3R1r b - - 0 1 legal: proof: g4 c5 e4 f5 h4 fxe4 a4 b5 axb5 g5 hxg5 c4 f4 c3 f5 Bb7 dxc3 Bc6 c4 Bd5 c5 Bf7 Bg2 Nh6 Bf1 Bg6 fxg6 Ng8 Kf2 a5 Ke3 d5 Kf4 Kd7 Ke5 h5 c4 e3 b4 d4 c6+ Kc7 Ke6 Kb6 c7 h4 c8R h3 g7 a4 c5+ Kb7 c6+ Kb6 g6 h2 g5 a3 c7 a2 Nh3 Ra3 Nf2 Nd7 Ng4 Nh6 g8N Nb8 g7 Ra7 g6 Na6 Bb2 Rb7 Na3 Qe8 N8f6 Nb8 g8Q Rh7 g7 Rh8 Bd3 e2 Nh7 Ra7 Bg6 Rb7 Nc4+ Ka7 b6+ Ka6 Qb1 Kb5 Nd6+ Kc6 b5+ Kc5 Rd8 Qc6 c8Q Rd7 b7 Na6 b8N Ra7 b6 Nf5 b7 Nh4 Kf7 Qc7 Ke8 Ng2 Nc6 Nf4 b8B Qa5 Bc7 d3 Nb7+ Kb5 Rd5+ Kc4 Re5+ Qd5 Rf1 h1R Re3 Rh2 Ba5 Rf2 Bb6 Ra8 Qe6 Rb8 g8Q Bg7 Rh1 Bd4 Rh5 Bc5 Bg7 Bd4 Bc7 Ba7 Qf8 Ra8 Qf6 Qe6 Kd8 Rb8 Nc5 Rb5 Nb7 Rf5 Qg5 Qg8 Bb6 Qf7 Qd1 Qg8 Rb1 a1R Qd2 Qf7 Rf1 Rb1 Qf6 Qd5+ Qd6 Qa5 Qf6 Qa2 Qfb2 Re1 Qb1 Rc1 Nhf6 Rh6 Nh7 Rd1 Rg5 Rh4 Rh5 Rf3 Rf2 Rdh1 Rf1 Rf2 Nca5+
1r1RB1Q1/1N1nbnQb/2p2pR1/rp1N2N1/5r1Q/kr3R1B/3B2K1/N2R4 b - - 0 1 legal: proof: b4 d5 g4 h5 gxh5 b5 c4 e5 cxd5 a6 f4 Bh3 fxe5 Bc8 a4 Qf6 a5 Qb6 axb6 a5 Ra4 axb4 Ra2 Nf6 Ra1 Ng8 Kf2 Kd7 e4 g5 h4 c6 d4 b3 h6 b2 b7 g4 e6+ Kd6 e5+ Kc7 e7 Kb6 e8N g3+ Kg2 f6 e6 Bc5 d6 Rh7 d7 Ne7 d8R Bb4 d5 Kc5 h5 Na6 b8R Be1 d6 Kb4 d7 Bf2 Qb3+ Kc5 Rh3 Nf5 e7 Rg7 h7 Bb7 h8Q Rg6 h6 Be3 h7 Rg4 Qbg8 Kb4 Nd2 b1R Nb3 Nh6 Qhg7 Nc5 h8Q Ra5 Nf3 Nf7 Ng5 Bc8 Nc7 Rf4 e8B Bg1 Qh4 Bh2 Nd4 Rb3 Be3 Bg1 Rd1 Ka3 Nd5 Bf2 Bd2 Be1 Kg1 g2 Rf3 Bf2+ Kh2 g1R Bh3 Rh1+ Kg2 Be1 Be3 Bb4 Bd2 Re1 Ra8 Re5 Nh7 Rh5 Ng5 Rh8 Rb8 Nb7 Ra8 Be7 Ra7 Nc5 Nc2+ Kb2 Na1 Ka3 Ra8 Ba6 Rdb8 Bc8 d8N Bf5 Nb7 Be4 Rd8 Bh7 Rd6 Nd7 Rd8 Rf5 Re6 Rf4 Re5 Raa4 Ree1 Ra5 Rg1 Rd4 Kg3 Nh6 Bg6 Ka2 Qe8 Ra6 Rc8 Rf4 Ne4 Bb4 Qef7 Rd8 Qfg8 Be7 Be8 Nf7 Kh2 Kb2 Rg6 Ra5 Kg2 Ka2 Ng5 Ka3 Rc7 Rda8 Rc8 Rb8 Rd8
1Bk5/3BQ1K1/1R2r1Rr/N1rN4/Rq1r1BpQ/pQ1n4/p6N/1R1Q1n1n b - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 f4 bxa4 c4 Nc6 cxd5 Nh6 h4 Bg7 h5 Bf6 e5 Ng8 exf6 Be6 Qg4 Bf7 Qd1 Bg6 hxg6 Nb8 Ke2 Kd7 Kd3 c5 Ke4 h5 Ke5 a5 b4 e6 d4 a3 f7 h4 f8Q g4 g7 a2 b5 a4 d6 h3 f6 h2 d5 c4 b6 c3 f7 c2 f5 Kc8 d7+ Kb7 d6 Ra5+ Bb5 Nh6 g8Q Qh4 d8Q Qh5 Kf6 Rh7 d7 Na6 Bf4 c1R Nf3 Nc5 Qfe7 Rc4 f8R Rb4 Nc3 Nb3 Nd5 Nc1 Re1 h1N Nh2 Rh8 Kg7 Nd3 f6 Rd4 f7 a3 Rb1 e5 Re4 Qh4 Re8 Qe1 f8R Qd2 Rf6 Qb4 Ba4 Rc5 Rg6 Rb5 Qh4 Rc5 Qde7 Nf5+ Kf7 Ne3 d8N+ Kb8 b7 Rh5 Bd7 Rh6 Kg7 Nf1 Rf8 Rc7 Rff6 Rc5 Nb6 Kc7 Qgb3 Kb8 Nc6+ Kc7 b8B+ Kb7 Re3 e4 Re1 e3 Nd5 e2 Re6 Ne3 Rf1 e1R Rf2 Nf1 Rc2 Re3 Rc4 Qb5 Ra4 Qb4 Be8+ Kc8 Na5 Re1 Rb6 Re6 Bd7#
kB6/2KR1R2/1Bn1N3/1bb3r1/Q5B1/Q1bNRbQ1/1b3nr1/RNrBn1q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kc4 a5 Kc5 e5+ d6 h3 b4 h4 g4 e4 d4 c6 f4 a4 f6 a3 b6 a2 d5 e3 b7 h2 g5 h3 f5 e2 b5 e1R b6 Re6 g6 Ra7 f7 Ne7 f6 Re1 g7 Rh5 g8B Nf5 Be2 Ne3 Nf3 Nc2 Be3 Rg5 Bf2 Reg1 Ne1 R1g2 Nd3 Ne1 Qa4 Ra8 Rf1 h1B Bd1 h2 Be3 Be7 f8Q Qe8 Bg1 Qg6 f7 Ra7 Rf3 Ra5+ Kd4 Rc5 Re3 Rc1 Bh7 Qg8 Be4 Qg6 Bef3 Qg8 Qh6 Kd8 Qh3 Bd7 Bg4 c5+ Ke4 c4 f8R+ Be8 d7 c3 Rf7 Nc6 b8B c2 b7 Bc5 Kf4 Rg6 Kf5 Rg5+ Ke6 Qg7 Ba7 Kc7 Bb8+ Kb6 d8N Qg8 d6 Qg7 Qe4 Qd4 d7 Ka6 Bd6 Ka7 Qg3 Qg7 b8R Qg8 Rb7+ Ka8 Bb8 Qg7 Rc7 Qd4 Ref3 Qf2 Re3 Qf1 Bf2 Qg1 Qa4+ Na5 Nb4 Bb6 Rd3 Bd4 Be3 Rd2 Kd6 Bf3 Bh3 h1N Bg4 Rg2 Ne6 Nf2 d8Q Bb5 Qf8 Ba7 Rcd7 Nc6 Na6 Bd4 Kc7 Bb2 Bb6 Bd4 Qfa3 Be3 Nc3 Bc5 Rb1 a1B Re3 Bb2 Ra1 Nfd3 Ba5 Nf2 Nb1 Bf6 Nb4 Bc3 Be2 Rd1 Nd3 c1B Qa2 B1b2 Q2a3 Rc1 Bd1 Bc4 Bb6+ Ba6 B6a7 Bb5 Bb6+
R1RQKb2/1B1B1n1r/3Bn3/bqb1bq2/8/5QR1/qr1N1NR1/Q2bNkN1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 a5 f4 a4 b4 c6 b6 h3 b5 a3 g5 e6 f6 h4 b7 h2 f5 h3 g6 a2 b6 Qe8 f7 Rh7 g7 Ra6 f6 Qe7 Ba3+ Kd7 Ke5 c5 d4 c4 d6 Kc6 d7 Kb5 d8R Ra7 d5 Qb4 d6 Nh6 g8B Na6 b8N Rb7 d7 Nc5 Bg2 c3 Nc6 Kc4 Nd4 c2 Ndf3 c1B Nbd2+ Kd3 Ne1+ Ke3 Rb1 Kf2 Rb3 Qb5 Rg3 Rb8 Bb4 Ba3 Qa1 Bb7 Re8 Bf3 Rc8 Bd1 d8Q Rb7 Bc6 Rb8 Bd7 Rb7 Kd4 e5+ Kd5 e4 Ra8 Rb8 b7 e3 Ke5 e2 Kd5 Qd3+ Kc6 Ne6 Be7 Bc5 Bd6 Rh8 Bh7 Qf5 Bg6 Rh7 Bh5 Bg7 f8N Nf7 Bf3 Bh6 Ng6 Bf8 Nb1 Kf1 Nf4 Qe5 Nfd3 Qf5 Qd4 a1B Nf2 Bb2 Qa4 Be5 Qa1 Rh6 Be8 Rh7 Kd7 Rc8 b8R Rc6 Ra4 Rb6 Rc8 Rb5 Bb7 Rb2 Ng2 e1B Raa8 Bd2 Ne1 Ba5 Ngf3+ Ke2 Rhg1 h1Q R1g2 h2 Nbd2 Qg1 Rg4 h1Q R4g3 Nh6+ f7 Qgh2 Bc7 Qf1 Bd6 Bfg7 f8Q Nf7 Qg8 Bf8 Qg4 Qh4 Qh3 Qc4 Qh5 Qa2 Qg4 Bfg7 Ke7 Bh6 Bd7 Bf8+ Ke8 Qg1 Nb3 Kf1 Qe4 Qh1 Ng1 Qhh5 Qf4 Qe2 Qf3 Qb5 Nd2+
1qQbk3/b2N4/1bb4b/1RBB2n1/3n1B1K/2bQBr1N/2Q1r3/1b1RRQN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 a5 Kg3 f5 d4 g5 h4 c5 e4 c4 b4 c3 d6 c2 b6 a4 b7 a3 h5 a2 e6 Bh6 d7+ Kf8 e5 Ra5 b5 Qf6 d8R+ Ke7 d5 Rh7 b6 Ra6 Nd2 Ra3+ Ndf3 Qf8 Nh3 Bd7 Bg2 Nc6 b8B Nd4 b7 Bc6 Re1 Nf6 Rb1 a1B Rb5 Bc3 Be3 c1B Qc2 Rf7 Rd6 Ke8 e7 Ra2 Nfg1 Nh7 Rd7 Qh8 d6 Rf8 Bd5 f4+ Kg2 f3+ Kg3 f2 Bc7 f1B b8N Bg7 h6 Bf6 Bb6 Rb2 Bc5 Bc4 Bf4 Ba2 Be3 Bb1 Bf4 Rf7 Be3 Nf8 h7 Nfe6 Bf4 Qf8 h8B Qg8 Bg7 Rf8 Bh6 B1d2 Kg2 g3 Be3 g4 Bhf4 Ra2 Rd8+ Kf7 d7 Qh8 Kf1 g2+ Kf2 Bc1 Kg3 Rb2 Qf5 Re2 Qd3 Bg5 Qc2 Bh6 Kh4 g3 Re8 Ba3 d8Q Bab4 Qc8 Ba5 Nd7 Bd8 Rd1 Qg8 Be4 Ng5 e6+ Kg7 Bd5 Rf5 Nf3 g1B Qa6 Bf2 Nfg1 Kg6 Qd3 Qh8 Qa1 Qe5 Qb2 Qb8 Qbc2 Kg7 Rh8 Rf7 e8Q Rf6 e7 g2+ Bg3 Rf8 Qh5 Rf3 e8Q Bc7 Qc8 Bd8 Bc1 Be3 Re8 Bf2 Re6 Be3 Qg4 Kf7 Bf4 Bf2+ Qg3 Be3 Rf6+ Ke8 Qe1 Ba5 Rf5 Bb6 Rf6 Bd2 Qf1 Bc3 Bce3 Rg3 Nf3 g1B Rf7 Bf2 Nfg1 Rf3+ Bg3 Ba8 Bc1 Ba7 Rf4 Nc6 Bf8 Re5 Re4 Bfb6 Ree1 Re2 Be3 Nd4 Bgf4 Bc6 Bc5
1B1RQ2N/QB3r1q/KR6/4bR1R/1b1Qbr1q/N3n1Nr/n6k/n4QnB b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Kf4 d4+ Ke4 f4 c5 g4 a5 b6 e5 Kb5 h5 d6 a4 d7 h3 b7 a3 f6 c4 f7 h2 g5 c3 d5 c2 d6 h4 g6 a2 g7 h3 f5 Nc6 b8R Qg5 d8Q Nh6 g8B Bg7 f8N Bb7 f6 Rh7 f7 Ra4 d7 Nf5 Ne2 Kf3 Ng6 e4 f8Q e3 Qfe8 Qh4 Na3 Ne5 Nh8 Be4 Ng3+ e2 Bf4 c1N Bd5 Ne3 Bg2+ Kf2 Rb1 a1N Rb6 e1B Bb7 Nf3 Bb8 Be5 Qd4 Rg7 Qf6 Rf7 d8R Na2 Qf4 Qh7 Rf6 Bc3 Rf5 Bd2 Kb6 Bc3 b5 Bb4 Rhc1 h1R Rc5 Rh2 Bh1 Qh4 Rb3 Kg1 Rh5 Rf2 Qf6 Kh2 Rb1 Rb2 Qf5 Ng1 Qf1 Rb3 Rf5 Ba5+ Ka6 Qh7 b6 Bb4+ Ra5 Nd5 Rf2+ Bg2 Qg4 Be1 Ba8 Rbf3 b7 Bc7 Ne4 Bd6 Bc7 Ne3 b8Q Rb4 Rh5 Be5 Qb6 Rc4 Rb5 Bb4 Qa7 Rg3 Bb8 Rgf3 Nc5 Rd4 Qgd7 Kg3 Rb6 h2 Bb7 Rh4 Qd4 R3f5 Nb3 Be4 Bf3 h1Q Nc1 Qh3 Bg2 Kh2 Ne2 Qg4 Ng3 Rh3 Rf4 Qh4 Bh1 R5f6 Rg4 Rf3 Rgg5 R3f4 Rf5
K2N1B2/bRR4N/1r1n3k/4B1R1/Q1b1rQQq/B1r1N3/1q1nB2n/n1Q4q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kg7 Ke4 c5 b4 h5 g4 a5 d4 e5 f4 c4 d6 c3 Kd5 a4 d7 c2 g5 h3 g6 h2 f6+ Kh6 b6 e4 b7 e3 b5 e2 f7 e1Q f5+ Qd2 f6 a3 g7 a2 b6 h4 Ba3 c1R Be2 h3 Nc3 Kh7 Nf3 Kh6 Qa4 Kh5 Rg1 h1Q Nd1 h2 Ne3 Bc5 f8Q Rd1 f7 Ra6 Rg5+ Kh6 Rc1 Nc6 b8B a1N b7 Na7 Be5 Qb2 b8R Rb6 Rb7 Rd3 Rc2 Qf6 d8Q Rc3 Qc7 Nb5 Qfd6 Bf5 f8B Bd3 Qdc6 Nd6 Qf7 Qg6 Qf4 Qh5 Qc7 Qh4 Rc1 Rb4 Kc6 Bc4 d5 Nf6 Qc8 Rh7 g8Q+ Rg7 Qge6 Ba7 Qeg4 Nfe4 Qc7 Nd2 Qcc8 Nf7 d6 Rb5 d7 Nd6 Rc2 Rb6+ Kc7 Qhb1 Rc1 h1N Rc2 Ng3 Rc1 Nf7 d8N Ngf1 Rc2 Nh2 Rc1 Rb5 Rc2 Qh1 Rc1 Bc5 Kb8 Nd6 Ka8 Ba7 Qc7 Rb6 Qcc8 Rd3 Rc3 Ba6 Rcc7 Bc4 Qcf5 Rd4 Qfc2 Re4 Qc1 Rc6 Nd4 Ra6 N4e6 Rb6 Be7 Rf7 Nf8 Rf6 Nh7 Rf5 Qfg3 Rf3 Q3f4 Rh3 Nf1 Rd3 Ne3 Rc3 Bf8#
3k4/BQ2RQr1/R2n1qNq/2Rq1B2/bNB1nb2/2r1N2Q/1q1BKb1r/2N5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 c5 f4 h5 b4 e5 d4 a5 b6 a4 b7 h3 f6 e4 b5 a3 b6 e3 f5 e2 g5 h4 g6 h2 d6 c4 g7 c3 d5 c2 d7+ Kf7 d6 h3 Nd2 a2 Nc4 Ne7 Bd2 c1R Ne3 Rc4 Qb3 Qc7 d8N+ Ke8 g8B Ng6 f7+ Kd7 f6 Qc6 Bh7 Bh6 f8Q Ne5 f7 Na6 b8B Ra7 b7 Rc3 Bd3 Qb5 Nc6 Nc4 Nb4 Nc5 Qg7 Qc6 f8N+ Kd8 d7 Qf6 Qf7 Nd6 Bf5 Bf4 Ng6 Nce4 Rc1 a1Q Qbe6 Ra4 Ba7 Qb2 b8Q Rg8 Qb5 Rg7 Qb7 Ra2 Rc2 Ng3 Kf2 e1B+ Kf3 Nge4 Ne2 Beg3 Nc1 Bf2 Rg1 h1Q+ Ke2 h2 Rg5 Rb3 Rc6 Rc3 Ra6 Qg2 Kd1 Qh3 Bc4 h1Q+ Ke2 Qh6 Qe5 Bh2 Qg3 Qg2 Qh3 Bf4 Bfe6 Qh1 Rc5 Qg2 Bf5 Qgg5 Bg4 Qge5 Bf5 Qd5 Qc6 Bb7 Qb5 Bc6 Qb7 Bb5 Nf8 Ra1 Nca2 Rh1 Nc1 Rh2 Ng6 Bc6 Qb5 Kc7 d8R+ Qe7 Rd7+ Kc8 Nf8 Qef6 Re7+ Kd8 Qb7 Ba4 Ng6
2bRK1BN/2N2QQ1/3Bb2r/n3b3/Qrb5/Rq3nB1/B1RQ1bn1/k2b3N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 h5 g4 c5 g6 f5 d6 a4 d5 c4 g7 a3 g5 f3 b6 f2 g6 f4 b7 f3 d7 a2 Ke6 h4 Kf7 c3 d6 c2 e5 Kb3 e6 h3 e7 h2 e8Q Qb6 d8N Rh7 d7 Rh3 Qd2 Ra3 Ne2 Bd6 Nbc3 Bg3 Nb5 Rh6 Nc7 Ne7 g8B Nd5 g7 Nc6 b8Q Ra4 Qa8 Rb4 Rg1 h1B Rg2 Bh4 Ng3 Ne3 Qa7 Na5 Bc4+ Ka4 Qe6 f1B Ke8 f2 Nf7 Be2 d8R f1B Nh8 Bd1 Qf7 Bfe2 Rf2 Bd5 Nh1 Bde6 Rh2 Ng2 Qa8 Rb5 b4 Bf2 Ba3 c1N Qe4 Ncb3 Qef4 Rg5 b5 Rg4 Bd6 Nd4 Bd5 Qb7 b6 Bc4 Qe4 Qb8 b7 Nf3 Qed4 Kb3 Qa7 Qa8 b8B Qb7 Qa6 Bc2 Qc6 Kb2 Qa4 Rgh4 Bh7 Re4 g8Q Qb3 Qg4 Rf4 Bg8 Re4 Qgg7+ Rd4 Re1 a1B Re3 Kb1 Rc3 Bd1 Rh3 Rdh4 Rc2 Be5 Be4 Qc3 Bb4 Bb5+ Bc6 Nfe1 Be7 Bd6 Na6 Rb4 Bc7 Qb2 Ra3 Nf3 Bb8 Bbe2 Bd5 Bc7 Bb3 B2c4 Ba2+ Ka1 Bh4 Be5 Bd6 Qb1 Nc7 Qb3 Bg3
5b1R/b1r1B1qB/k3q1NQ/2RrbQ2/nNB2N2/3r1rQ1/3Q1nb1/R1K1B3 b - - 0 1 illegal: No possible last move
1Q1N1N1b/B1NR3K/2q1bR2/1r6/Qr2rn1b/2BB3B/1r1n2Q1/R1b1k1Nq b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 b6 h3 d7 h4 g6 c4 f6 h2 Kf5 e4 b7 a4 d5 a3 d6 h3 b3 e3 g7 a2 Kg6 c3 f7 e2 f5 e1R f6 c2 Na3 Kc3 b4 Be7 f8R Ra5 f7 Qe8 d8Q Re4 b5 Bh4 b6 Qc6 Qg5 Nd7 b8Q Nc5 b7 Nb3 Qg2 Nf6 g8B Nh5 Bd3 Be6 d7 Nd2 d8N Nf4+ Kg7 Rb5 Bb2+ Kb4 Bh7 c1B Bf5 Rg8+ Kh7 Rg4 Rb1 a1B Bc3+ Kc5 Qa4 Bab2 Bb4+ Kd4 Ra1 Ke3 Ba5 Bh8 Bc3 Rb2 Nb5 Reb4 Nc7 Rb5 Qd5 Kf2 Qg2+ Ke1 Re8 Qd7 Re7 Qc6 f8N R5b4 Rd7 Rg5 Bg4 Rgb5 Qba8 Re4 b8B R5b4 Ba7 Rb5 Qb8 R5b4 Bf1 Rb5 Ne2 R2b4 Rg1 h1R Bf5 Rh2 Bg6 Rec4 Bd3 Re4 Rh1 Rf5 Ng1 Rfb5 Qg4 Rhe2 Qg8 h2 Bh3 Rb2 Qg2 Reb4 Qc2 Ree4 Ra6 Qa8 Rad6 Qc6 Qa4 Bd5 Rg6 Be6 Rf6 Qc4 Qc8 Qc6 Qa5 Kd1 Ne2+ Be1 Rf1 h1Q Rf3 Bh4 Ng1 Nb3 Qa4 Bd2 Rf2 Be3 Rc2 Bd2 Qb8 Ke1 Bcd4 Be3 Rc3 Bc1 Rc2 Nd2 Bc3 R2b3 Ra2 Rb2 Ra1
n1R3bn/kB1B3b/1B2R3/brN3q1/QbQ2r1N/2R1nN1N/1n4B1/1q3QK1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 f5 e4 c5 g4 Kc7 d4 Kb7 g6 h5 b6 a5 e5 a4 d6 a3 g7 f3 g5 h4 d7 a2 e6 h3 g6 h2 d5 f4 d6 c4 e7 c3 e8B c2 b5 Nh6 g8B Ra7 g7 Rh7 Nh3 Qf6 d8N+ Ka8 d7 Qe5 Nd2 Ra4 b7+ Ka7 Ne6 Qg5 d8N Bb4 Bd7 Na6 b8R Nf7 Nc5 Rh5 Ndb7 Nc7 Bg2 Nh8 Bd5 Na8 Re1 h1B g8Q Ba5 Rb1 a1B Kg1 B1c3 Rb3 Bcb4 Nd6 Ba6 Ba3 c1N Rc3 Nd3 Nf5 Nb2 Rc8 Bb7 Be4 Bd5 Nh4 Be6 Qe8 Bg8 Bb7 Bh7 Re6 f2+ Kh2 f1Q Ndf3 Qd3 Qf1 Qb1 Kg1 Bg8 Ne1 f3 Qf7 Nd3 Bc1 Nb2 Be3 Rh6 Qf4 Rg6 Q4c4 f2+ Kh2 Rf6 Nef3 Rf4 Bd4 Ra3 Be3 Rb3 Bd4 Ba3 Qa4 Rb4 Qc4 f1N+ Kg1 Rb3 Qd5 Rf7 Ne1 Qd8 Bf3 Ng6 Ne4+ Bc5 Bbc6 Rb4 b6+ Ka6 Qc4+ Rb5 Bf2 Rf4 Bd4 Ne3 Qf1 Qe7 b7 Nh8 b8Q Bd6 Qc7 Qd8 Bb6 Bb4 Bd5 Qf6 Qcc4 Qe7 Rcc6 Kb7 Nc5+ Kb8 Rc7 Qf6 Bb7 Qg5+ Bg4 Be4 Rcc6 Qe5 Bf3 Qg5+ Bg2 Bg6 Nef3 B6h7 Bd8 Ka7 Rc8 Qc1 Bc7 Qb1 Bb6+
kr1Nb1qB/1B3r1R/r3Q1n1/1QNnqNq1/1b1Q4/6B1/NK1R2np/1RQ5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 g4 Kc7 f6 Kb7 f5 a4 f7 c4 g5 h3 b6 e4 d6 h4 d5 a3 f6 e3 g6 a2 b5 c3 g7 h2 d7 e2 d6 e1R Bh3 Rh6 Bb2 Be7 f8R Qe8 d8Q Qh5 d7 Bd6 f7 Bb4 Qc1 Ra7 Ne2 Ka8 Ng3 Qe5 Nf5 Ne7 g8Q Nbc6 b7+ Kb8 Qb6 Ng6 d8N Bd7 Qd4 Be8 Kb3 c2 Nc3 Rh8 Rb1 Ra6 Ba1 Rf1 Kb2 Rf2 Rd1 h1Q Rd2 Qg2 Bg4 Kc7 b8B+ Kc8 b6 h3 Bc7 h2 Bd6 Nce7 b7+ Kd7 b8Q Nd5 Qb5+ Kc8 Bh3 Qg5 Bg4 Qe6 Bg3 Rf3 Qd1 c1N Qdf1 Ne2 Qc1 Nef4 Bh3 Bd7 Re8 Qe5 f8N Ng2 Re7 Be8 Rh7 Qg7 Qf7 Qg8 Nd7 Rf4 Qe6 Kc7 Nb6+ Kb8 Nba4+ Ka8 Nc5 Rf1 Kc2 Rf4 Bb2 a1Q Kb3 Qa5 Na2 Rf1 Ba1 Qc7 Kb2 Qe5 Ne3 Rd1 Kb3 Ndf4 Qdd7 Qf7 Nc6 Qc7 Qec4 Rf1 Qf5 Rf8 Bh8 Qg8 Kb2 Bf7 Qd4 Rb8 Nd8 Be8 Qff6 Qce5 Bc8 Nd5 Qe6 Rf6 Nf5 Rf7 Bb7+
bKQ4k/Q1Bq4/2r2q1b/RB1Q2b1/1q1N3B/Q4RNR/p1R1rr1N/2n3n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kg7 Ke4 c5 Ke5 h5 d4 a5 g4 a4 f4 a3 b4 h3 g5 h4 d6 c4 f6+ Kh7 f7 h2 f5 e6 d7 c3 d5 c2 g6+ Kg7 b6 h3 b5 Bb7 d6 Ra5 Nc3 Bg2 b7 Qg5 d8R Qh4 d7 Rh6 f6+ Kh8 Bf4 c1B Ne4 Na6 b8N Ne7 Kd6 e5 b6 Nc5 Kc7 Nb3 b7 Nc6 Nf3 Ncd4 Rc8 Ne2 d8B Ng1 Ng3 e4 Bb5 e3 Qd5 e2 Nc6 e1Q b8Q Qb4 Ncd4 Bg7 Bd6 Bg5 Qa7 Nc1 Kb8 Ra6 Be5 Re6 Bec7 Re2 Ra2 Bf8 Rc2 a2 g7+ Kh7 g8R Rf2 Rg6 Kh8 Rc3 Qg4 Ra3 Qd7 Ra5 Nge2 Rf1 h1Q Nh2 Ng1 Be7 Re2 Rf4 Be4 Rf3 Qg2 Bed8 Qf1 Be7 Rh7 Bed8 Bfh6 Rg7 Rf2 Rg6 Rg7 f8Q+ Rg8 Qfc5 Re8 f7 Re6 Qc3 Rc6 Qa3 Re2 Rgf6 Qf2 R6f4 Qf1 Rd3 Bg2 Rh4 Qf6 Rf3 Rf2 Nhf1 h2 Rh3 h1R f8Q+ Kh7 Qe8 Rh2 Qee6 Bh1 Be7 Re2 Qg4 Rhf2 Nh2 Qf8 Bed8 Kh8 Be7 Bf4 Bh4 Bfg5 Bd8 Qf6 Qge6 Rd6 Rc2 Rc6 Bc7 Rc3 Qc4 Qdf7 Rf5 Ba8 Qcd5 Rc6 Rf3 Q7e7 Qc8+ Qe8 Bd8 Qd7 Bc7+
RB2n3/1k2qQRQ/3rN2Q/2r2B1K/n2NbN2/1B1N3p/qb1r1R2/4n1qR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Kg4 a5 f4 c5 d4 Kc7 b4 a4 d6+ Kb7 d5 c4 d7 h3 d6 a3 b6 c3 f6 h6 b5 h2 f7 a2 f5 e4 f6 e3 Bd3 c2 Qd2 e2 Bf5 e1N Nf3 Ra4+ Nd4 Qe7 d8R Nd7 Nc3 Qe4+ Kh5 Qf3+ g4 Qe2 Nd5 Nc5 d7 Bg7 f8Q Ra6 f7 Ka8 b7+ Kb8 Nf4 Kc7 b8N Qe8 b6+ Kb7 g5 Nb3 g6 Nc5 Nbc6 Na4 Ne5 Qe7 Ned3 Bf6 g7 Be5 Ba3 c1R Bd6 Rc5 Bb8 Rh7 Rd1 a1Q Qe8 Qa3 f8R Qa2 Qf7 Rh8 Rg1 h1Q+ Qh2 Qhg2 Rde8 Qgf2 Rg4 Qg1 d8N+ Ka8 Rb1 Bb7 N8e6 Be4 Rg2 Kb7 Rc8 Rd5 Rcc2 Raa5 Rcf2 Rac5 Qh4 Rd6 Qhf6 Ka6 b7 Rh7 Q6g6 Rh8 Qh7 Nf6+ Kg6 h5 g8B h4 Kh6 h3 Rg7 Ne8 Kh5 Nf3 Rbf1 Ne1 Qh6 Qg2 Rh1 Qf1 Ba7 Qg2 b8Q Qg1 Qb1 Bf6 Bb8 Be5 Nb3 Bb2 Nbd4 Kb7 Ba7 Nc7 Ra8 Ne8 Bb8 Rh7 Rg5 Rg7 Rgg2 Rg3 Qc2 Re3 Rg7 Re2 Nd8+ Kb6 Qfg6 Ba3 Qc4 Bb2 Qgh7 Rd2 Qce6 Qf7+ Qeg6 Qa7 Bb3 Qe7 N8e6 Kb7 Qf7
1R2qN2/k2Q2Qb/nRBN1RN1/2nQ4/pq1r4/rB1QB2R/2Kb3r/q5n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 g4 c5 d6 h3 b6 Kc6 g5 Kb7 d7 h2 b5 c4 d5 a4 f6 c3+ Kc2 e4 d6 h4 g6 e3 f5 e2 f7 e1R g7 h3 f6 Rh7 Nf3 Ra6 Ne5 Qe8 d8Q Rh4 d7 Bb4 f8N Rc4 f7 Rd4 Qd3 Nf6 g8B Re3 Neg6 Ba5 Nd2 Ne4 Nc4 Nc5 Nd6+ Ka8 b7+ Ka7 Qc7 Rf3 d8Q Bf5 Bf4 Rb6 Qc6 Nba6 Bg2 Rg3 Rhf1 h1Q b8R h2 Qd5 Rb7 Rf3 Qhe1 Ra3 h1Q Qd7 Q1e4 Bd2 Qa1 Be3 Rh3 Rb3 Rh2 Rh3 Rc7 Rb6 Qf4 Rb1 Be4 Rf1 Qg4 Nh8 Bh7 Rf6 Qf4 Qc8 Re7 Nhg6 Re5 Qcc6 Rg5 Qc8 Rg3 Qd7+ Nc7 Qf3 Qa3 Qde4 Qd8 Bf2 Nb3 Kb1 Qd2 Rb7+ Ka8 b6 Qe8 Ne6 Na6 f8Q Nbc5 Qfg7 Bb4 Nef8 Qe1+ Qd1 Qa2+ Kc1 c2 Qe5 Ra3 Bc6 Qc4 Be3 Qef1 Kb2 c1N+ Qe2 Qb5 Kc2 Bd2 Qd3 Qb4 Bb3 Ne2 Qd5 Qa1 Ra7+ Kb8 b7 Nc7 Ra6 Ng1 Rb6 N7a6 Q7e6 Ka7 Qg4 Kb8 Q4d7 Ka7 b8R+
N2q1r2/N1k1B1N1/R1nr1bK1/B4Qp1/B1n3b1/1nQQ4/Q2qr1Rq/2R4R b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 c5 Kf4 a5 Kg5 e5+ f6 e4 h4 a4 b4 g6 d4 e3 f4 g3 f5 a3 d6 g2 b6 c4 b7 a2 b5 e2 d5 e1N h5 c3 b6 c2 h6 Ra3 h7 Be7 Qd3 Bf8 Nc3 Nc6 b8R Nh6 b7 Ne7 f7 Qc7 f6 Qc4 Nge2 g1Q+ Ng3 Qa7 Nf5 Nc6 Bd2 c1Q Nb5 Qca4 Ng7 Q4a6 Ra8 Qb2 b8N+ Kd8 d7 Qad4 Rc1 a1R Ba5+ Qdb6 Na7 Bd6 f8B Qb4 f7 R3a2 Be7+ Kc7 d8R Ng2 f8Q Ne3 Nd7 Be5 Qff5 Re2 Rg8 Qd2 Qb1 Ra3 Qa2 Rd3 Bh3 Qb7 Bf1 Qb8 d6+ Kb7 Bh3 Qd8 Nb6 Bb2 d7 Rd6 Bg2 Kc7 Be4 Bd4 Bc2 Bb2 Ba4 Bd4 Re8 Rf8 h8Q Ba1 Qhg8 Bd4 Qgb3 Be5 Qc3 Nc4+ Kh4 g5+ Kh5 Bf6 Kg6 Rf7 Rh8 Rf8 Rhg1 Ne3 Rg2 Nc4 Qb5 Nf5 Rhh1 Nfd4 Qf5 Kb7 Nh5 Nb3 Ng7 Qdc7 d8Q Be6 Qfd3 Bg4 Qd7 Qd8 Q7f5 Qcb8 Nac8 Kc7 Ra6 Qa8 Na7 Qac8 Qcb2 Qe6 Qba1 Qe5 Qac3 Qh2 Na8+
1n5N/4B3/Qb1n1Rpb/1rN1q3/1q2BR2/1bNrQ2k/n4Q1N/1KQRr1B1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 d4 a5 Kd2 c5 Kc2 e5 f4 c4 h4 c3 b6 g3 h5 g2 h6 e4 b7 g6 b5 a4 b6 a3 f6 e3 h7 e2 f5 e1Q d6 a2 d5 Na6 b8Q Nc5 f7 Be7 f8Q Ra6 b7 Qc7 f6 Qe5 f7 Qh2 Qa7 Qb8 Nf3 g1R+ Bg2 Nf6 Be3 Nce4 Qc1 Re1 Rf1 Bd8 Bg1 Ra3 Qa6 Qe5 Nh2 Bb6 Rf4 Rb3 Qh6 Rd8 f8Q Rb4 h8N Rb5 Kd3 c2 Nc3 Rf1 Qe3 c1N+ Kc2 Re1 Rb1 a1B Rb4 Nh7 Kb1 Na2+ Qc1 Bb2 Rf6 Ba1 Qd2 Bb2 Qfh6 Nf8 Qhe3 Ba3 Qdf2 Bb2 Qd1 Bc1 Qdd2 Ng5 Qd1 Nf7 Be4 Bd2 Qee2 Bh6 Qee3 Ne6 Qdc1 Nd4 Qeg3 Nc6 Qge3 Qa7 b8R Qb7 Ra8 Nb8 Ra7 Ke8 d7+ Ke7 Ra8 Nd6 Ra7 Re8 d8N Be6 Ra8 Bg8 Ne6 Rd8 Nc5 Qc6 Nb3 Qc5 Rd4 Qb4 Rd1 Nd7 Rc8 Nb8 Rf4 Rd7 Rcf8 Bf7 Bf5 Kf6 Be4+ Kg5 Rf6+ Kh5 Rf4 Nb7 d6 Rd8 d7 Nd6 Qfd2 Bg8 R8f6 Be6 Qdb2 Bf7 Nc5 Bb3 R4f5+ Kh4 Qbf2+ Qg3 Rf4+ Kh3 Qd4 Qg5 Qdd2 Qe5 Qde2 Re8 d8B Rg8 Be7 Rd8 Bd3 Ne8 Be4 Rd3 Qed2 Nd6 Qde3+
5qnb/N2k2N1/q1R2pR1/r2qBBb1/1B1n2Q1/N6K/Q1bQn1R1/1R2N1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 Kg2 g5 b4 a5 d4 c4 h4 f6 e4 g4 b6 c3 d6 c2 d7+ Ke7 d5 g3 e5 a4 b7 f3+ Kh3 g2 h6 f2 d6+ Ke6 h7 a3 h5 a2 b5 Ra4 b6 Bg7 h6 Qc7 d8R Qc3+ Nf3 g1Q d7 Ke7 e6 Qa5 Bd2 c1B Bb4+ Qc5 Bd3 f1N Rh2 Qd6 Bf5 Bd2 Ne1 Qf2 Qg4 Ra7 Na3 Qg1 Rg2 Bg5 Rb1 Nc6 b8N a1Q b7 Qdc5 Re8+ Kd6 d8Q+ Bd7 e7 Na5 Nc6 Ng3 Qa8 Ne2 Rc8 Be6 b8B+ Kd7 e8N Nb3 Be5 Ra5 Na7 Qgd4 Qd5+ Qd6 Rc6 Qc5 Qd1 Qcd5 Qd2 Qf8 Qa2 Nbd4 Qd2 Ne7 Qa2 Rg8 h8Q Nc3 Qh7 Bh8 Ng7 Nce2 Qd2 Qaa2 Qg6 Qac4 h7 Qcb5 Qf7 Qa6 Bg6 Bf5 Qe6+ Kd8 Qf7 Bc2 Bf5 Qd6 Qa2 Qd5 Ne8 Rg6 Ng7 Ng8 Nh5 Bg7 h8R Ke8 Rh6 Bh8 Re6+ Kd7 Ng7 Bh4 Qgf4 Rg4 Rg6 Bg5 Qg3 Rf4 Qh4 Rf1 Qg4 Rg1 Rc6+
3bkr2/1BBn2bB/bQp2Q2/1RR5/1N1K1NrB/4R3/1QqN4/n1r1Rq1q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 Ke3 e5 f4 h5 d4 h3 g4 h2 b4 e4 g5 c6 b6 a4 g6 a3 b7 a2 d6 h4 d5 h3 g7 Rh7 d7+ Ke7 b5 Nh6 g8B Rg7 b6 Ra4 d6+ Kf6 Ne2 Qe8 d8Q+ Qe7 d7 Na6 b8R Rf7 b7 Kg7 f6+ Kg6 f5+ Kh5 Qd4 Qd6 Qb2 Nb4 Nd2 Bg7 Qb6 Rf8 d8B Nf7 Bc7 Ne5 f7 Nd7 Bh7 Qg6 f6 Kh6 Kd4 e3 Rb1 a1B Nf4 Qc2 Ba6 e2 Re1 h1R Ra8 h2 b8N Rf1 Bb7 h1Q Ra5 Rg1 Rc5 Rf1 Rd1 e1Q Na6 Qe2 Re1 Rg1 Nb3 Qf1 Be3 Rg4 Bf2 Ra3 Nd2 Rc3 Ba8 Bb7 Bh4 Bc8 Nb8 Ba6 Bb7 Qf5 Re3 Rc1 Rb5 Qc2 Rc5 Rg8 f8R Rh8 Rfe8 Rf8 Qc3 Bb2 R8e5 Ba1 f7 Bf6 Rb3 Kg7 Qb2 Bd8 Re1 Nd5 Ra3 Ne3 Rg5+ Kf6 Rac3 Ke7 Rd3 Bb5 Na6 Bc4 Nb4 Ba6 Ra3 Qfg2 Qc3 Qgf1 Rcd5 Qb1 Rb5 Rh8 Rgc5+ Kf8 Qb2 Nc2+ Kc3 Qf2 Kc4 Qff1+ Rd3 Rhg8 Qa3 Bg7 Qb2 Rh8 Rce5 Na1+ Kd4 Qc2 Rde3 Nf6 Rec5 Rg8 Be5 Ke7 f8Q+ Kd7 Qd6+ Ke8 Bf5 Nd7 Bh7 Rh8 Qf6 Rf8 Bc7+
Q1Bbb1kr/2q1B2n/p2QR1N1/RnN4q/Q1B3rQ/7r/7N/1b1RKRn1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 h5 f4 c5 d4 e5 b6 a6 d6 h3 f6 e4 d7 e3 g5 c4 b5 e2 b7 h4 d5 c3 f5 c2 d6 h2 b6 h3 Ba3 c1R Nc3 Be7 g6+ Kf8 g7+ Kf7 Nf3 Rh4 Na4 Rc6 Nc5 Bf8 Qa4 Qe7 d8Q Be6 d7 Ba2 Qc7 Re6 d8Q Rg4 Qcd6 Nc6 b8R Na7 b7 Nb5 Rc8 Re3 b8Q Rd3 Rc6 Qc7 Qb7 Rc8 Qa8 Bb1 Rg1 h1B Nh2 Rb8 Rb6 Bc6 Bg2 Bd7 Bb7 Rdg3 Bc8 Be7 Ra2 Be8 Rc6 Nh6 g8B+ Kf8 Bd5 Nf7 Bc4 Ng5 f7 Nh7 Rf1 Kg7 f8R Rd3 Rf7+ Kg8 f6 Re3 Rd2 Reg3 Rd1 Re3 Nf3 h2 Rb6 h1Q Nh2 Rh3 Rg7+ Kh8 f7 Qd5 f8N Qh5 Rgf7 Kg8 Ng6 Bg5 Q8f6 Bh4+ Qf2 Bf6 Qh4 Bd8 Kd2 e1N R7f5+ Qf7 Re5 Nf3+ Ke2 Ng1+ Ke1 Nd4 Re6 Qc7 Rb2 Nb5 Ra2 Ng5 Bb2 Nh7 Bf6 Rf4 Ra1 Rg4 Be7 Bc6 Rf5 Kg7 Rf1 Bd7 Bb7 Rc8 Bg5 Be7 Qb4 Rh8 Ra5 Be8 Bc8 Bd8 Qa4 Kg8 Be7
q3NKR1/1Qqp1R2/2N2bR1/1r2n3/1Qb1Bn2/1kN3q1/r4Q1n/RNB1b2B b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 g5 Ke4 a5 Kd5 e5 h4 g4 b4 g3 f4 a4 c4 a3 b6 e4 c5 e3 h6 e2 h5 e1B b5 d3 h7 a2 h6 d2 f6 g2 f5 Qe8 c6 Bd6 c7 Bdg3 b7 Ra3 b6 Rc3 Qa4 d1N Bd3 Bh4 Kd6 Ra3 Ne2 g1Q Be4 Ne7 Qb4 Ra5 Nec3 Qg5 Rg1 Qg7 Rg6 Rg8 h8R Ra7 h7 Nbc6 b8N Nd5 b7 Ne5 Nc6 Qd8 b8Q Nf2 Q8b7 Nfg4 Bh1 Rf8 Rg8 Nh2 h8Q Bg5 Qhh4 Nf4 Qf2 Ra4 Qba7 Ba6 c8B Bf1 Bb7 Bc4 Ba8 Ra3 Qab7 Qc7+ Kc5 Qh8 Qc8 Qb7 Kd6 Nef3 Na5 Bd3 Qb8 Qc8 Be4 Qh4 Nc6 Qg3 Qba7 Ra5 Qab7 Rb5 Ne7 Ke8 f7+ Kd8 f6 Ne5 Qba7 Qb7 Nc6+ Kc8 Ke7 Kc7 Qa6 Ra8 f8N Bc4 Nh7 Ra7 Ke8 Bh4 f7 Bd8 Ng5 Bf6 f8R Qb6 Rf7 Qa5 Qa4 Kd6 Ne6 Qc7 Qb7 Ra6 Ng7 Ra7 Qf3 Kc5 Kf8 Raa5 Ne8 Ra8 Na3 Ra7 Rb1 a1Q Nd4 Qa2 Ra1 Ra8 Qf2 Raa5 Qac2 Kb4 Nab1 Ra8 Qce2 Qa7 Qc2 Qab8 Qce2 Ra2 Qc2 Qbc8 Qce2 Qa8 Nc6+ Kb3 Qc5 Qd3 Qef2 Qg3 Qb4+
2n2bkB/8/N3bn2/4K1N1/1R1RB1Rb/4nqQb/1BQb1Qp1/1NrrQR2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 Ke4 f5+ Ke5 Kf7 e4 a5 b4 g4 h4 c4 d4 a4 h6 a3 d6 f3 d5 c3 h7 f4 h5 f2 b6 f3 b7 c2 h6 g3 d7 g2 b5 a2 d6 Ne7 b6 Nd5 Bd3 f1B Nh3 f2 Ng5+ Kg6 Bb2 c1B Rh4 Na6 b8Q Nf4 b7 Nc7 Rg4 Ne8 Qc2 Nf6 Qbc7 Ra4 b8N Rd4 Na6 N4d5 Qb8 Rg8 h8B Nb6 h7 Bd2 Qa7 Qc7 d8Q Qc6 d7 Be2 Qdc7 f1N d8R Ne3 Qd6 Be6 Rb8 Nc8 Rb4 Be1 Qb6 Bh4 Qbc5 Bd1 Qf2 Ba4 Qcc2 Qb7 Qdc7 Bad7 Q7c3 Rg7 Qce1 Rd6 Qg3 Re7 Qef2 Re8 Rd4 Rd8 Rb4 Rc6 Qc4 Qc7+ Kd4 Nf1 e5+ Bf5 e6 Ne3 e7 Nf1 e8Q+ Kh6 Nc3 Qa5 Rf4 Bh3 Rg4 Qf5 Qee5 Kg6 Bg7 Rc5 Qee2 Ne3 Be4 Rc6 Rf1 Be6+ Bd5 Rc5 Qee1 Qf3 Nb1 Rd7 Qce2 Rc1 Ke5 Rd8 Bb7 Rd3 Qc2 a1B Bd4 Bc3 h8R Bc5 Rd8 Bf8 Bh8 Kh6 Ra4 Rdd1 Rb4 Bd2 Ba1 Nd6 Bb2 Nc8 Rd3 Kg6 Rdd4+ Kh6 Ne4 Kh7 Ng5+ Kg8 Be4
Kb1R2Q1/4r1BR/1R1qBp2/5r1r/1Q2rN2/2Nnr1B1/n1Q4N/1B1n1Qkb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b4 g5 h4 c5 d6 a5 b6 a4 d7 g4 b7 g3 b5 f3 b6 g2 h6 f2 h7 a3 d5 f6 h5 a2 h6 Bg7 d6 Qc7 d8R Bg4 d7 Ra3 Qc2+ Rc3 Nf3 g1R Bh3 f1R Nh2 Qc8 Bf4 Bf8 Bg3 Nc6 b8Q Nb4 b7 Rf5 Qf4 Bd6 b8Q Re1 Qf1 Ne7 Qb6 Re8 h8B Bb8 h7 Qc7 Bg7 Qd6 h8N Nd3 Ng6 Bh5 Nf4 Nd5+ Ne6 Rh8 Nf4 Ne3 Qbb2 Nd1 Qa3 Kb5 Qb4+ Kc6 e3 c4 Bg4 Ra3 Nc3 Ra7 Rc1 a1R Rb1 R1a3 Bh3 Be2 Rb2 Rhh5 Bg4 Rfa5 Be6 Raf5 Rb3 Qf8 Kd4 Bf3 e4 R3a4 e5 Re3 Re8 Bd5 d8Q Qd6 Rh8 Re7 Qg8 Qc7 Rh7 Bf3 Rg1 Bh1 Rg2 Re8 Rd2 Re7 Ne4 c3 Kc4 N3f2 Rd8 Nd3 Rb1 Qd6 Rb3 Kc7 Kb5 Kb7 Qc5 Rc4 Qb4 Rd4 Ka5+ Kc6 Ka6 Rc4 Qcf2 c2 Nc3 c1N Qc2 Rce4 Rb2 Bc7 Ka7 Na2 Ka8 Bb8 Bf7 Rd7 e6 Rb7 e7 Rd7 Qb7+ Kc5 e8B Kd4 Be6 Re7 Bg6 N3f2 Rb3 Rf3 Qd5+ Ke3 Qdb5 Rfe5 Qb6+ Rd4 Be4 Ref5 Qbb5 Rc4 Qb1 Rb4 Bd3 Re4 Bc2 Nd3 Qa5 Qd4 Rb6 Qd6 Bh4 Rh3 Qab4 Rf3 Q1b3 Rh3 Bb1 Rg3 Qh3 Kf2 Qb2+ Kg1 Qc2 Rf3 Bg3 Rfe3 Qf1#
2N3B1/2r1n1nB/1Bbrq1k1/N1p5/Qb1NRK1Q/4rR2/1nb1BQ2/2rR2N1 b - - 0 1 illegal: No possible last move
B2nR3/bN3Bp1/1R2Q1b1/bb4nr/4QNbR/2N1qkB1/4r3/K1Q1QqR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 Kd6 e4 Ke5 d4+ Kf6 Kd2 c5 Kc3 a5 Kb2 f3 b6 c4 h6 f2 e5+ Kf5 b7 Ke4 h5 f5 h7 a4 b5 f4 b6 f3 d6 Qh4 d7 Qf4 d8Q Bf5 d5 Bg6 d6 Qg3 d7 Ra6 h6 Nc6 b8R Ra5 e6 Bd6 b7 Be7 Qe8 Ra7 d8N Bb4 e7 Nf6 Bg2 f1B Nh3 Ba5 Qe1+ Be2 Bf4 c3+ Ka2 Qg5 Bg3 c2 Nf4 c1Q Rh4 a3 Nc3+ Ke3 Ra8 f2 b8R f1B Rb6 Ne4 Nb7 Nd8 Qd7 Qf5 e8B Ng5 Bf7 Re8 h8Q Qc5 Bh3 Kf3 h7 Q5e3 Qe6 Bb5 Rb1 Bfe2 Ka1 a2 Bf5 Re7 Qe8 Qd1 h8Q Qdd3 Kb2 a1B+ Ka2 Bd1 Qh6 Qf1 Rb8 Bb2 Bh3 Ba3 Ka1 Bd6 Rc8 Bb8 Bf5 Ra8 Bd3 Ba7 Bc4 Bdc2 Bd5+ Bce4 Q8c6 Bh5 Qhg6 Bg4 Qc5 Re8 Qa3 Rh8 Qac1 Rh5 Qgf5 Nc6 Re8 Nd8 Nc5 Rc8 Ba8 Rc7 Nb7 Re7 Rb2 Bb1 Rg2 Bc2 Qfe5 Bg6 Rg1 Rd7 Qb2 Rd2 Qbc1 Re2 Qe4+
2N5/1QB1b1bN/BQ1NK1bn/2R1R1r1/1n1RR3/3Brqk1/3p1Qrb/3q3Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 b4 d6 h4 g4 c4 a4 c5 a3 b6 e4 h6 e3 h5 e2 c6 e1Q c7 g3 b7 a2 h7 d3 b5 g2 b6 d2 h6 Bd7 c8B Qee8 Rh4 Ba4 Nh3 g1B Nc3 Be7 Ne4+ Kf7 f6 Kg6 f7 Bb5 f8Q Be3 Nhg5 Nc6 b8Q Qed7 b7 Ra7 Nf7 Kf5 Bd3 Bf2 Qh1 d1R Qa8 Qb6 b8Q Qa5 Qb6 Bg1 Ba6 Qa3 Qab7 Ba4 Be3 Qc3 Rc1 a1B Bf2 Re1 Bg3 Qa3 Rc5 Bg7 Rh5+ Kg4 f5 Re2 f6 Bc2 Re5 Rg2 Bh2 Qd8 Ke6 d5 Ned6 d4 Nc8 Nb4 Nfd6 Kh4 Bf4+ Bh2 f7 Kg4 Be2+ Qf3 Bed3 Nf6 Re4 Rg8 h8R Kh4 h7 Ng4 Rce5 Nh6 Rc5 Bgf6 Rce5 R8g5 Rg8 Kh3 h8R Kg4 Rg6 Bg7 Rf6 Kh4 Rff5 Ra8 Rc5 Kh3 Rfe5 Kg4 Bab5 Ra3 Ba6 Rb3 Be2 Re3 Bed3 Ng8 Rh3 Nh6 Rg3+ Kh4 Rg4+ Kh3 Qh8 Bb1 f8N Bc2 Nh7 Bb1 Be2 d3 Qf8 Bc2 Nc4 Qd4 N4d6 d2 Beb5 Qa1 Bd3 Qad1 Qf7 Ba4 Bg3 Be8 Qf4 Bg6 Rd4 Qfe2 Qf2 Qf3 Rge4 Nc6 Ne8 Nb8 Rf5 Nc6 Bc7 Nb4 Rfd5 R2g4 Ned6 Rg2 Qff1 Kg3 Rde5 Qc1 Qfg1 Qcd1 Qf2+
1B1QK3/QbN1br2/2B1Q3/1RkqN3/1Nr1QB2/2b4p/1R2Bn2/q1Rnr2r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 e5 d4 c5 g4 a5 f4 h5 b4 c4 g5 h3 g6 h2 f6 c3 f5 a4 g7 h4 b6 a3 b5 h3 b7 c2 b6 a2 f7 Qh4+ Bf4 c1B f6 Rh5 Qb3 Ba3 Nc3 Ra5 Nf3 Ra7 Rb1 a1R Na2 Qe1+ Be2 Qc1 Rb2 Rh8 Nb4 Ne7 g8B Qc5 Rc1 Na6 b8R h1R b7 Bg7 f8N Ra8 f7 Re1 Ne6 Qc6 f8Q Qe8 Qf5 Qb5 Nc7 Rh4 Bf7 Bf6 Be8 Ra7 Bc6 Rb1 Qg6 Nf5 Qg2 Ne3 Qf2 Nd1 Qbe3 Ke7 d6+ Kf8 d7 Ke7 Kf5 Kd6 Kg6 Nc5 Kf7 Ne4 Ke8 Qd5 Qg1 Nef2 Qe4 Rg4 Ra8 Rh4 b8B Bb7 Qg4 Rh7 Qgg6 Ra4 Ra6 Rf7 Rb6 Ra1 Nc2 Rc4 d8Q+ Rd7 Qc8 Rf7 Qh7 Be7 Qg4 Bb4 Qgf5 Bc3 Nb4 Qe6 d5 Kc5 d6 Qd5 d7 Rh1 Qb1 e4 d8Q e3 Qbe4 Re1 Ne5 Rb1 Bh5 e2 Qe6 Rh1 Qg7 e1Q Be2 Qed2 Rb3 Qa2 Rb2 Qa1 Qg3 Bd2 Qa3 Bc3 Qa7 Ne3 Rcc2 Rbe1 Rc1 Ned1 Rb5#
Qn1BB2n/5B1N/bR2r3/N2Qr3/R1b2Nq1/Bqr1Rp2/1b3K1k/1Nr3Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 Ke5 d4+ Kd6 h6 g5 h5 f5 h7 a5 h6 c5 b6 f3 b7 f4 b5 a4 b6 c4 Rh3 c3 Ne2 c2 Kf2 Ra5 Ba3+ Rc5 Ra2 c1R e5+ Kd7 d6 Ke6 d5+ Kf5 e6 Kg4 e7 R1c3 e8B Bg7 d7 Ne7 d6 Ng6 Bg2 Re5 Qg1 Qf6 d8N Qf7 d7 Qb3 Nc6 Rg8 d8B Nh8 Bf7 Rge8 Na5 R8e6 Rg3+ Kh4 Bh3 Bf6 Bf5 g4 B5g6 Nc6 b8N Ba6 Nd7 Nb8 b7 Bc4 Bc1 a3 Nf8 Ba6 Ra1 a2 Ba3 Bc4 Be8 Ba6 Bgf7 Bc4 Kf1 f2 Re3 g3 Kg2 f1B+ Kf3 g2 Kf2 f3 Nf4 Na6 b8R Kg4 Rb5 Nb8 Rb6 Ba6 Nc6 Bfc4 Na5 Ng6 h8Q Bg7 Qg8 Nh8 Nd3 Kh3 h7 Bf6 Qe1 g1R Nf4+ Kh2 Qd1 Bg7 Qd5 Rgc1 Bh5 Ng6 h8Q Bf6 Qhg7 Nh8 Qgb7 Bg7 Bhf7 Bf6 Nh7 Bg7 Nd2 Bf6 Qa8 Bg7 Rb1 a1Q Rb2 Qb1 Ra2 Qf5 Nb1 Bf6 Bd6 Qg5 Ra4 Qg4 Bf8 Be7 Qg5 Ba3 Qg7 Bb2 Ba3 Rf5 Qgd4 Rh5 Qd1 Rhe5 Qg1+
R1k1q3/3N2R1/1KBb2R1/r2bq2B/2qQ1qQn/B3p1n1/QBb1r2R/3N1N2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kc4 c5 b4 e5 f4 h5 d4 e4 g4 e3 f6 h3 d6 a4 b6 a3 Kb5 c4 d5 h4 f7 h2 g5 h3 f5 a2 b7 c3 f6 c2 g6 Bg7 f8R Na6 b8Q Ra7 f7 Nh6 Qg4+ Nf5 Rg8 Qf6 f8B Rh4 Bb2 c1Q Be2 Bb7 Qa8 Qfc3 Nd2 Rh6 Kb6 Bh8 g7 Nc5 b5 Qd1 Nf1 Nd3 Bf3 Qb4 Ne2 Qda4 Nc3 Ra5 Nd1 Qc4 Rc1 Qf4 Rc6 a1Q Qa7 Kd8 d7 Nc1 Rg6 Ne2 Bg2 Qae4 Bfa3+ Qe8 Bf3 Neg3 Bg2 Qb4 Be4 Nh4 Qa6 Ke7 d8R Qc1 Rc8 Qc4 Ra8 Bc8 d6+ Kd8 d7 Qe7 Bc2 Qe5 Be4 Rh7 Bc6 Rh5 Rg1 h1B Rg2 h2 Rc2 Bd5 Rg2 h1Q Rh2 Ra4 Qa7 Rb4 Qa4 Qhe4 Qb3 Q4f4 Qa2 Ke7 d8Q+ Kf7 Ra4 Bf5 Ra8 Bc2 Qd6 Rg5 Qc5 Rf5 Qd4 Ke7 Ka6 Qb3 b6 Qc4+ Ka7 Rh5 b7 Rg5 b8N Kd8 Nd7+ Rb8 Rf8 Kc8 g8B Bf6 Bh7 Be7 Rfg8 Bd6 R8g7 Qb3 Ka6 Qc4+ Ka5 Rf5 Bg8 Rh5 Bf7 Rg5 Ra7 Rb5+ Ka6 Ra5+ Kb6 Rf5 Re6 Qh6 Bg6 Rf2 Bh5 Re2 Reg6 Qhf4 Ra8+
R3brRn/n5rB/2NR1qQq/BQbK4/4BrQQ/1pN1b3/7b/3NkB2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 b4 d6 b2 a5 b3 a6 c4 a7 h4 g6+ Kf6 d7 c3 d5 c2 g5+ Kg7 d6 h3 Ne2 h2 Kd5 e4 Nec3 e3 Qg4 e2 Nd1 e1B Bd2 c1B Ba5 Qf6 d8Q Rh6 d7 Rh3 Nbc3 b1R Qe8 Bd6 d8N Bc5 Qb5 Bd7 Nc6 Rf3 Rg1 h1Q Rg3 Kh8 g7+ Kh7 g6+ Kh6 Rg2 Rb2 Rd2 Be8 Rd4 Be3 Raa4 Qfh4 f6 Bg3 f7 Bh2 f8Q Rg2 f5 Rf4 f6 Qf2 f7 Ne7+ Kc4 Qh4 Qg8 Qf6 f8Q Rg3 Qff7 Rg1 Qh3+ Kg5 Qhh7 Kg4 Qh4+ Kf3 Qe6 Nf5 Kd5 Nh6 Qgf7 Rgg4 g8R Rg2 Qh7 Nf7 g7 Nh8 Qg6 Rg1 Rf8 Rg2 g8B Rg1 Bh7 Rgg4 Ne7 Nc6 Rg8 Rb8 a8B Na7 Nc6 Rg3 Nb2 Kf2+ Qee4 Ke1 Nbd1 Qg2 Qgg4 Qh3 Qeg6 Rc8 Re4 Rb8 Re6 Rc8 Rd6 Rd8 Qhg5 Qh6 Q5h4 Qfg7 Qf7 Bhg1 Qgg5 Nc8 Na7 Rc4 Bc7 Rd7 Kc6 Qgf6 Ra6 Rf4 Ba5 Bh2 Qgh5 Bf2 Qf5 Rg7 Q7g6 Rgf7 Qfg4 Rg7 Rb6 Rgf7 Rb8 Rf8 Bb7 Bd4 Ra8 Rg7+ Kd5 Bc5 Bc6 Rb4 Bd7 Rf4 Nc6 Na7 Bc8 Ra4 Bf5 Rf4 Qhh5 Bfg1 Be4 Bge3 Qhh4+
NRNNrq2/bn4Qk/1nK2B2/1nb4r/4B3/p2QbbR1/B5N1/1RQ3Rq b - - 0 1 illegal: No possible last move
B3rQ2/2rNBn1B/1Q1qbq2/1R2R2N/1n3p1R/kN3K2/3qR1Qb/2nqQ3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 Kd6 d4 f5 b4 a5 h4 g5 h6 c5 e5+ Kd7 h5 a4 e6+ Kd6 h7 a3 h6 g4 b6 f3 b7 c4 e7 a2 e8B c3 b5 c2 b6 f4 Bd3 Nc6 b8N Nf6 b7 Nd7 Rh5 Nde5 Qe1 Qa5 Ba3+ Qb4 Nd2 c1N Nd7 Nf7 b8R Ne2 Re5 Ra6 Nb3 Ne7 Rb5 Nc1 Ne2 Bg7 Ng3 Rc6 Nh5 Rc7 Rb1 a1Q Rb2 Qc5 Rbe2 Nc6 Bb1 Rf8 h8Q Nb4 h7 Qb6 Qg8 g3+ Kg1 f2+ Kg2 Qb2 h8R Qd2 Kf3 g2 Bh7 Bf6 Qg4 g1Q Qh3 Qg5 Qg2 Nd8 Beg6 Nf7 Be4 Bd8 Rg8 Qf6 Rg4 Qc5 Rh4 f1Q+ Qef2 Qfd1 Qe1 Nc6 Bb4 Re8 Ba3 Ra7 Bb4 Bb6 Ba3 Kc7 d6+ Kb7 d5 Ka6 Nf8 Bf5 d7 Qcd6 d8Q Bg1 Nd7 Nb4 Qe7 Rc7 Qf8 Nc2 Bb4 Be6 Ba3 Bh2 Bb4 Qb6 Be7 Nb4 d6 Qc5 Ba8 Qcd4 Nb6 Qc5 d7 Qcd6 d8Q Nh8 Rbd5 Nf7 Nc5+ Kb5 Nbd7 Ka5 Nb3+ Ka4 Rb5 Ka3 Qb8 Ka2 Qb7 Ka3 Qb6
1qNBqBB1/1kb2QRK/Rq6/1QQr4/q4p2/b1n4N/1BN3R1/r1nb3N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 a5 Ke4 g5 Kf5 c5 d4 f6 Kg6 Kc7 h4 f3 e4 a4 b4 f2 e5 c4 e6 a3 d6+ Kb7 e7 a2 e8Q c3 d5 g4 d7 g3 d6 f5 h6 f4 b6 c2 b5 g2 h5 Ra3 h7 Ra5 h6 Ra8 Qd5+ Nc6 Qc5 Ra3 Rh2 Bg7 Nc3 Nb4 Nd1 Na6 Qf7 Qe7 d8B Ka8 b7+ Kb8 d7 Rc3 Bc4 f1Q Nf2 Qfe1 Ba3 c1B Ngh3 g1Q+ Rg2 Bd4 Nh1 Nf6 Bb4 Re8 h8B Q7e5 h7 Ne4 Bg7 Qe2 h8R Ba3 Kh7 Rc1 Rg8 Nc3 Bh8 Qd6 R8g7 Re5 Bd5 Qb6 Bc4 Ka7 b8N Kb7 Nc6 Rd5 Na7 Be5 Bb3 Qd6 b6 Qb8 Bc4 Bc7 Bb3 Ka8 Bc4 Bb7 Nc8 Bc6 Bb3 Ba4 Bc4 Bd1 Bb3 Qa7 b7+ Kb8 Bf6 Qe7 d8N Qe8 Ne6 Qb6 Be7 Qe3 Bh4 Qe5 Nd4 Qed6 Nc2 Qdf8 Qa5 Nc5 Bd8 Nd3 Bbe7 Rb1 Qc5 Nc1 Bd6 Qa4 B6e7 Qfe8 Bf8 Qa8 Ne7 Ka7 b8Q+ Ka6 Nc8 Qab7 Qa8+ Q7a7 Qac6 Qb8 Q6b5+ Kb7 Bc4 Rb4 Rb1 a1Q Rb2 Ra4 Ra2 Ra8 Bb3 Bb4 Ra6 Qa4 Bc4 Ba3 Qfd7 Rd2 Bg8 Rd5 Qf7 Ne4 R7g3 Qd4 Bhg7 Bb4 Ra2 Qa1 Bb2 Nc3 Ra6 Qa2 Ra3 Qc4 Rb3 Ra1 Ra3 Qb3 Ra8 Qa4 Rg7 Ba3 Ra6
n1rB1Rb1/1R1q1n2/B1B3Rn/3Np2K/1r1bQ3/2bbQ1Q1/N2kN1Q1/1qN5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 b4+ Kd4 f4 a5 d6 c5 d7 h6 b6 h3 b5 h2 b7 e6 f6 c4 f5 c3 f7 c2 b6 a4 f6 a3 Qe2 a2 Qe3+ Kd5 d4 Qc7 d8N Ra3 Nc6 Ra8 Kh5 Qd8 g4 Nd7 b8Q Bg7 f8Q Bb7 f7 Ra5 g5 Be5 g6 Ba6 b7 Qc8 g7 Ne7 g8B Bd3 Ne2 Kc4 d5 Ra4 d6 Bd4 Qa8 Rb4 b8Q Nf5 Qg7 Nb6 f8R Qd7 Rg1 h1B Rg6 Bd5 Nbc3 e5 Rb1 a1B Na2 Bac3 Ne7 Be6 Qh1 Na8 Qbb7 Bf7 Ba3 c1Q Qhg2 Qc2 Rb2 Qb1 Qbe4 Bd5 Bh7 Be6 Nd5 Bg8 Kg4 h5+ Kg5 h4 Nac1 h3 Kh5 Qa7 d7 h2 d8N h1N Nc6 Nd6 Qgg3 Nf2 Qb7 Ra4 Ncb4 Ng4 Nba2 Nf7 Be7 Ngh6 Rbb6 Rb4 Bd8 Nd6 Qg7 Qd7 Rb7 Ndf7 Qf6 Bd2 Qff3 Bc3 Qfg2 Qc8 Nef4 Qa1 Ba5 Bd2 Re6 Be2+ Q4f3 Nf5 Ndc3 Qb1 Rd8 N5h6 Be4 Qd7 Bc6 Bh7 Ncd5 B2c3 Rg6 Re8 Bc7 Bg8 Qfg4 Re6 Rf8 Re8 Ba5 Rb8 Bd8 Rc8 Ncd3 Kb3 Ndc1+ Kc2 Q4f3 Kd1 Qfg4 Bf3 Bfb5 Be2 Ba6 Kc2 Q2h3 Bb5 Nfe2 Bd3 Qhg2 Kd1 Q4f3 Kc2 Qee4 Kd2 Qfe3+
R4RN1/2nN4/1Q1kN1p1/n1n2Br1/1R3q1B/2q5/qNr2b1R/Q1QKBb1q b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kd7 d4 c5 f4 e5 b4 a5 d6 a4 h5 g3 d5 c4 f6 c3 f5 g6 h6 e4 b6 g2 f7 a3 h7 c2 b7 a2 f6 e3 b5 e2 b6 Bg7 f8R Ra4 f7 Nf6 Nd2 Ra7 Rh2 Nh5 Ne4 Na6 b8R Nf6 b7 Qb6 Nh3 g1Q Nf4 Qc6 Bd2 c1N Nd3 Qc4 Nb2 Qg4 Bh3 Rg8 h8Q Nb3 Qc1 Ne8 Ra8 Bf6 b8Q Bd4 Rb1 a1Q Qb6 Nac5 Bb4 Qe6 Bf5 Na5 Qf6 Rh8 Qe5 Rc7 Nf6+ Kd8 d7 Ke7 d8N Ba6 Bc3 Rh5 Ng8+ Kd7 d6 Bf2+ Kd2 e1Q+ Kc2 Qe3 Kd1 Qcf4 Be1 Rg5 Qd4 Qa2 Qdc3 Bd3 Qa3 Qd5 Qa1 Bf1+ Nd3 Qh4 Rb4 Qh1 Nb2 Qe5 Rc8 Rc6 Ra8 Nc7 Re8 Qf6 Bc2 Qec4 Ne6 Ncb7 Bf5 Qa2 Reb8 Rc2 Rc8 Qd8 Rcb8 Nc5 f8N+ Ke8 d7+ Kf7 Qa7 Qf6 Qb6 Qc3 Rc8 Qf4 d8B Rg3 Bh4 Rg5 Nf6 Ke7 N8d7 Bc4 Rf8 Bf1 Qb5 Kd6 Ng8 Qh8 Qb8 Qc3 Qb6+
2NNRn2/1Q4Rb/q2p1k1q/nR2bR2/r2bQQBB/7B/1bQ3r1/1K2Nq2 b - - 0 1 illegal: No possible last move, all moves rejected
bBk1qBKR/B2n2p1/2N2r2/n3rnNQ/R1QN1N2/8/q2b1Q2/1B1Rn2r b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 e5 Ke4 c5 d4 a5 b4 a4 h4 a3 f4 a2 b6 c4 f6 c3 Kf5 g3 Kg6 e4 Kf7 c2 b5 e3 b7 g2 b6 e2 h5 e1Q h6 Ba3 h7 Qe5 d6 Ne7 d5 Re8 h8R Ng8 f5 Nc6 b8Q Bb2 b7 Ba3 Nd2 Qd4 Ngf3 g1N Bd3 Re1 Nb3 Rf1 Be3 c1N Ng5 Rf4 Bb1 Bb2 Qh5 Qc3 Ba7 Nge2 Nd4 Ng3 Rd1 Qda5 Kf8 Qe1 f7 Nd3 f6 Kd8 d7 Bc3 Qd6 Nf5 b8B Bb7 Qc5 Bd2 Qb4 Re4 Qc4 Re5 Qb5 Ngh6 Qc4 Ng4 Kg8 Qe4 f8N Ne1 f7 Qa6 Ng6 Na5 f8B Nf6+ Kf7 Qe2 Nf4 Qb5 Bac5 Ra6 Bca7 Ne4 Kg8 Rf6 Bb4 Nc5 Ba3 Ke7 d8N Kd7 d6 Kc8 N8c6 Ba8 d7+ Kb7 d8Q Nd7 Qb6+ Kc8 Bc7 Qb3 Bf8 Nd3 Re1 Rb5 Nc2 Rc5 Bcb8 Qe8 Rf1 Re5 Qf2 Qa4 N2d4 Qb3 Bc2 Qa4 Rab1 a1R Rb4 Qa2 Ra4 Rd1 Bb1 Rc1 Re1 Rd1 Re2 Rg1 Re1 Rh1 Rc1 Ne1 Rd1
QrBNn2R/p1bbb1N1/1k3n2/5B1n/QR3n2/2R3b1/1BQ2N2/1KN1rq1Q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 c5 Kc2 Kc7 b4 h5 g4 e5 f4 e4 f6 h3 f5 c4 b6+ Kb7 g5 h2 f7 c3 f6 e3 b5 h4 g6 e2 d6 e1B d5 h3 d7 Qe8 d8Q Ba3 f8N Bc5 f7 Rh5 g7 Qc6 d6 Bf5+ Bd3 Rh8 d7 Qg6 Bb2 Be7 Nd2 Nf6 g8B Rh5 Kb1 Ng4 Ra3 Be6 Qc2 Bg3 Ne4 Qf6 Qe8 Re5 Nf2 Na6 Bf5 Rb8 Ne2 Nc7 Nc1 Re1 Rb3 Ne3 Rb4 Ned5 Bgh7 Nf4 d8N+ Kc8 Rf1 Bd7 Nfe6 h1N f8R h2 Rh8 Qf8 Qh5 Ne8 Ng7 Qf6 b7+ Kc7 Bg4 Kb6 Bhf5 Qf7 Qa4 Qc4 Rg1 Qf1 Bh3 Nd5 Qe2 Ndf6 Qec2 Bc7 Rgg4 Ng3 Rgc4 h1N Bhg4 Ngh5 Bh3 Bc6 Bc8 N1g3 Bhf5 Ne2 Rc5 Ra8 Rcc4 Bg3 Rc5 Nef4 b8Q+ Bb7 Qd6+ Bc6 Qd5 Rb8 Qh1 Bd7 Qcb3 c2+ Ka2 Ra8 Rc7 N6d5 Rc3 Ndf6 Rd3 Kc5 b6 N4d5 b7 Bc7 b8Q Ndf4 Qbb7 Rb8 Ne2 c1B Rh3 Ne6 Kb1 B1f4+ Nc1 Bfe5 Re3 Bg3 Qa8 Nef4 Rf3 Bb5 Qc2+ Kb6 Rd4 Bc6 Rc3 Bd7 Rb4+
knQ2B1Q/b1RRBnp1/qN3BN1/1b1K1RRb/6N1/3nQ3/r2rp3/1B1r4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 a5 Kd3 d5 h4 Kd7 b4 Kc7 f4 Kb7 c4 e5 f6 a4 f7 a3 b6 a2 b5 Bg4 h6 Ra6 c5 Qd7 h7 Qc8 f5 Nh6 h5 Nd7 c6+ Kb8 f6 Bf3 b7 Ra7 Qd2 Bc5 f8B Rg8 h8Q Qd8 f7 Bb4 Ba3 Nf6 Nc3 Ra8 c7+ Ka7 b8R Ba5 c8Q Bb6 Na4 Qd6 Qe3 Nd7 Rd1 a1N Nh3 Nc2 Rg1 Bh1 Be7 Rd8 f8B Nf7 h6 Bf3 h7 Bh5 Bb2 e4+ Kd2 d3 Kc3 d2 Nf2 d4+ Kc4 d3 Bbf6 Bc5 Rg5 Nb4 Ng4 Qa6 Nb6 Bd4 Rc1 d1R Rc3 d2 Bd3 Bc5 Bb1 Nd3 Kd5 Bd4 Qg8 Bc5 h8N Bd4 Ng6 Bc5 Qg3 e3 Qh8 e2 Rc4 Bf2 Qe3 Bg1 Rf4 Bf2 Rff5 Bg1 Qc4 Bf2 Rc8 Nb8+ Nd7+ Kb7 b6 Ra7 Rc7+ Ka8 Qcd4 Re1 Qc5 d1B Qc3 Bc2 Qcc5 Rd1 Qc4 Qa1 Qa6 Ba4 Qc8 Bb5 Qe4 Ra2 b7+ Ka7 Qe5 Rad2 Qg3 Qa6 Qh3 Re8 Nb6 Bg1 Qe3 Bf2 Ba3 Re4 Bae7 Ra4 Rd7 Raa2 Qh3 Bh4 Na4 Bf2 Qg3 Bd4 Qe3 Nc6 b8R+ Qb7 Rd6 Qa6 Rb6 Nb8 Rbc6 Bc5 Rd7+ Ka8 Rcc7 Ba7 Nb6+
1RqQ4/nb4nN/B3Qb2/R3r3/qp1B2R1/2QKpQ2/2NnBk1q/2N3rB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 d4 e5 f4 h5 a4 c5 g4 b5 a5 b3 d6 b4 a6 e4 g6+ Kf6 a7 b2 g5+ Kg7 d5 e3 d7 c4 d6 h4 Qd4+ Nf6 Na3 b1N Nc2 c3 Ra5 h3 Kd3 h2 Be2 Nd2 Bb2 Qe7 d8R Qf7 d7 Kg8 g7 Kh7 g8B+ Kg7 g6 Kh6 g7 Qa2 Bc4 Qb3 g8Q Ne8 f6 Nc6 f5 Bb7 f7 Be7 f8Q+ Ng7 f6 Qa4 f7 Bf6 Rb8 Rh7 Bb5 Kg5 d8Q Rh5 Qe5+ Kh4 Ba6 Rf5 Qe6 Kg3 Qh8 Re5 Ba1 Nf5 Qhg7+ Kf2 Bb2 Bh4 Qgf6 Bg5 Q8g7 Bh4 f8N Bg5 Qff7 Bf6 Qh8 Ng7 Nh7 Bc8 Bd1 Bb7 Ne2 Rf5 Re1 h1Q Nc1 Re5 Rg1 Qh3 Be2 Qh2 Ne1 c2 Rg4 Ne4 Bd4 Nd2 Na2 c1Q Nc2 Qf1 Nc1 Qfh3 Rc8 Rb8 a8B Na7 Qh5 Bh1 Bg2 Rbb5 Ba8 Bb7 Rb8 Rg5 Qhf7 Rbe5 Qff8 Bc8 Bh1 Bb7 Rh4 Rg1 Rg4 Q3g2 Qff7 Qgc6 Qff8 Nh5 Qhg7 Qc8 Qgc7 Ng7 Qc3 Qa2 Qff7 Qa4 Qh5 Qb3 Qh3 Qa4 Qf3+
2R4Q/bb5N/2BR1B1B/1Rkr1Bn1/p7/pQnrqqr1/RNK2b2/N6Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Bd7 hxg5 Bc8 g4 Kd7 d4 Kd6 Kd2 a5 b4 e5 f4 c5 g6 h5 g5 h4 f6 h3 f7 c4 g7 c3+ Kc2 h2 f5 a3 f6 e4 b5 a4 g6 e3 b6 e2 b7 e1R Bb5 Nd7 b8Q+ Qc7 Nh3 Nh6 g8Q Rg1 g7 Rg4 Nd2 Rg1 Nb3 Ng4 Bh6 Rf1 Nf4 Rf3 Bc6 Ra5 Nd3 Ra8 Nb2 Rg3 Ra2 Nf2 Na1 Ne4 Qb3 Rh7 Qh8 Ng5 g8B Ra5 Qb1 Be7 f8R Nb6 f7 Bb7 Rc8 Bf6 f8N Rd7 Rf1 h1Q Nh7 Qf3 Be6 Qd8 Bh3 Qe8 Bf5 Qee3 Rf2 Bd8 Qh1 Bc7 Rf1 Bb8 Rc1 Ba7 Rb1 Qe6 Kc1 c2 Kd2 c1B+ Kc2 Ke7 d6+ Kf7 d5 Be3 Qg1 Bf2 Qh1 Rd8 d7 Qee3 d6+ Rd5 Bg6+ Ke6 Bd3 Rg8 d8B Rf8 d7 Kd6 Be4 Kc5 Bf6 Rd8 Bf5 Rd3 Qg7 Nd5 Qh8 Rg8 d8R Nc3 Rd6 Re8 Rg1 Re5 Rg2 Red5 Rh2 Nb1 Rh4 Nc3 Rb4 Be1 Rb6 Bf2 Rb5+
r4B2/3R3N/bR1nK1N1/k2Npr2/2B4b/1q1pq1QB/nQr1QN2/1R2Q2n b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 Kd3 a5 Kc4 d3 Kd5 g4 c4 d6 h4 Kd7 f4 Kc7 b4 Kb6 c5+ Kc7 f6 g3 f5 a4 f7 d2 f6 a3 b6+ Kb7 b5 g2 h6 a2 h7 Bd7 c6+ Kc8 h5 Be8 c7 Kb7 h6 Bg7 f8N Bd7 f7 Bh3 Qe1 d1N Ng6 Bf8 Nc3 Na6 Rb1 a1R Bc4 Bc8 Ba3 Nf2 Nh3 g1Q Rd1 Bg7 f8N Bf6 Bb4 Ra5 Bc5 Ng4 Nf2 Bh4 Qe2 Qe8 Rb1 Qg3 Rhd1 Ra2 Bb4 Rc2 Ba3 Bf5 Rd2 Be4+ Ke6 Nb4 Nd5 Bd3 Rdd1 N8f6 c8B+ Kb8 b7 Ka7 b8R Na2 Bd7 Ne4 Rb6 Qe3 Rd2 Qb8 Qe1 Rg8 h8Q Bf1 Nh7 Rf8 Qc3 Rf5 Qd3 Qb7 Qde2 Qb8 Nb4 d5 Rd3 d4 Nd5 Nd6+ Ne4 Qf8 Rb8 Rf2 Nc3 Qef3 Kd5 Qg7 Nf6 Bg3 Q2d2 Bg2 Bb3 Nf7 h7 Qh6 h8Q Rf1 b6+ Ka6 b7 Nf2 Nh7 Bh1 Qde2 Ka5 Bh3 Bh4 Bc4 Qhf4 Qf6 e5 Ke6 Qc1 Bf8 Qb2 Qg5 Qe3 Qg3 Bf3 Re8 Nh1 b8Q Rf2 Rd8 Nd6 Rd7 Qa3 Qb2 Qb4 Nd2 Bb7 Nd5 Ba6 Ne4 Rf5 Rb3 d3 Nf2 Qc3 Rb4 Qb3 Rb6+
5Rrq/1r3B2/4R1R1/pkr1B3/N2Q1QNn/2NbNqbp/6nn/1R2B1QK b - - 0 1 illegal: No possible last move
nb6/3q2B1/b1QN2p1/2RR1q1r/1p1NBrN1/rb3BK1/3Q1Qn1/QRN3k1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 a4 Kf6 d4 e5 f4 b5 Kf2 c5 a5 c4 h6 e4 h7 b3 a6 c3 a7 c2 h5 g6 d6 b2 d5 b4 h6 e3+ Kg3 e2 d7 e1R d6 Qc7 d8R Qf7 d7 Qb3+ Bd3 Nc6 Qe2 Bc5 Nf3 Ne5 Be4 Rd1 Nd2 b1B Rh5 Bd6 Bb2 Qd3 Nb3 Qd2 Nc1 Ba2 Nh2 Rf1 Rb1 Bb8 Ng4+ Kf7 f6 Ke6 f7 Bb7 f8Q Bb3 Qc5 Nc4 Qc6+ Qd6 Bg7 Nf6 Rc5 Nd5 Bf3+ Nde3 Be4 Rg8 h8Q Nb6 h7 Ba6 Bf3 Rf8 Be4 Rf5 Bf3 Re5 f5+ Ke7 f6+ Ke6 f7 Kf5 f8N Ng2 Ne6 Qd1 Nd3 c1Q Nd4+ Kg5 Be4 Qcc2 Nc1 Rf4 Bf3 Qf5 Be4 Bd6 Bf3 Rc8 a8B Bb8 Rg8 Qdd3 d8Q+ Kh5 Bb7 Na8 Re8 Re3 Ree5 Qb5 Red5 Rc3 Qcf6 Qd7 Qhe8 Rc6 h8N Rb6 Nf7 Rb5 Qc6 Ra5 Nd6 Ra3 Rb5 Rc5 Qa5 Kg5 Qd2 Kh5 Qee2 Kg5 Kf2 Kh4 Qa4 Kh3 Ra5 Rc2 Rac5 Rc3 Nh6 Kh2 Ng4+ Kh1 Kg3 Kg1 Qa5 Re3 Qaa4 Re5 Be4 Ra2 Qa3 Ra1 Qab2 Ra4 Qa1 Ra3 Bf3 Re8 Qcb5 Rf8 Re5 Bc4 Be4 Bb3 Qc6 Rh8 Red5 Rh5 Qf2+
1n6/r1RBb1Nq/kBB1Rp2/2R3N1/K1pbrNQB/Q2Qn3/R6q/n4b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 d4 g5 Kd2 a5 Kc3 c5 Kb3 Kc7 e4 Kb7 d6 f3 e5 f2 d7 c4+ Ka4 g4 b4 g3 b6 g2 d5 f6 e6 Na6 e7 Nh6 e8B Ra7 d6 Rh7 b5 Qe7 d8Q Nc7 d7 Ne6 Ra2 Nf7 h6 Nfg5 h5 Qd6 Ne2 g1B Be3 Rf7 h7 Nf4 h8R Rg7 h6 Ng2 h7 Qc6 Nbc3 Qf3 Ne4 Ra8 Nf4 Rf7 Rh5 Ne6 Ng5 Ne1 Bh3 Qg3 Qg4 f1Q Bg2+ Kb8 b7 Qh2 Bc6 Ng2 Bb6 Ra7 Qe7 Rg7 d8N Ne3 Bed7 Qfh3 Qa3 Be7 Re8 Nc7 h8Q Na6 Nde6 Rg6 Rh7 Bf2 Rf7 Qh7 Ng7 Rh6 Qd3 Rh4 Qf8 Bg1 Bd4 Kc7 b8R Bb7 Rbd8 Bc8 b6+ Kb8 Kb5 a4 b7 a3 Ka4 Bf2 Bb6 Bg1 Rb2 a2 Rg2 a1N Ra2 Bd6 Re5 Be7 Re8 Bf2 Rc5 Bg1 Ba5 Bf2 Be1 Kc7 b8B+ Kb6 Be5 Nb8+ Ba5+ Ka6 Bb6 Bd6 Re6 Be7 Bc3 Bg1 Be1 Bb7 Bh1 Bg2 Bg3 Bf1 Bhc6 Rh6 Bh4 Rh5 Ne4 Re5 Ng5 Re4 Rf5 Bd8 Qfa3 Be7 Rfe5 Ng2 Rc5 Bd4 Rf8 Ne3 Rc8 Bg2 Rc7 Bh3 Rc2 Bf1 Ra2
1NK2k2/qN2RBQ1/1QNpr3/1Bn1R3/Rr4rQ/2Bnp3/1B4bb/1n2N2q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 g5 Kc4 e5 Kd5 a4 c4 e4 b4 g4 h4 g3 f4 e3 b6 d3 b5 d6 c5 d2 c6 a3 h6 g2 h5 a2 f6 Bg4 c7 Nd7 Kc6 Ra5 Kb7 Be7 c8B Nb8 h7 Nc6 f5 Ra3 f7+ Kf8 h6 Rb3 Na3 Qe8 Bb2 Be2 Be6 Na7 Nf3 g1Q Rh5 Qh2 Ne1 Nc6 Nc4 Qf2 Qb1 d1N Na5 Bd8 Kc8 Rd3 b7 Ne5 b8N Bf3 b6 Rb3 b7 Qh4 Nbc6 Bg2 b8N Nf6 Bb5 Nd3 Nb7 Ne4 Bc3 Rg8 h8B Nec5 h7 Qh1 Bb2 Rg5 Bhc3 Rb4 h8Q+ Rg8 Qf6 Rg6 Qh4 Qe7 Bb3 Re6 Rh7 Qg5 Bd5 Bf6 Rh5 Kg7 f8R Be5 Re8 Qe7 f6+ Kf7 Bb3 Bh2 Re5 Rg4 Rd8 Rb4 Rd7 Kf8 Rc7 Qh7 f7 Qg7 Re7 Rg4 Bd4 Nc3 Bd5 N3e4 Bdc3 Nd2 Qd1 Rb4 Qa4 Nb1 Qa7 Rg4 Qb6 Na3 Rc1 a1R Bb3 Ra2 Ra1 Nb1 B3c4 Ra4 Ra3 Rb4 Ra4 Qh7 Bb3 Kg7 f8Q+ Kg6 Nba5 Rf6 R7e6 Qa7 Qfh6+ Kf7 Nb7 Kg8 Qg6+ Kf8 Re7 Rgc4 Qgh7 Rg4 Bf7 Re6 Qg7+
nN1NBN1R/1Rb2R2/1np2QnQ/2qQ1r1k/1p3q2/1B2b3/5rRB/5bKN b - - 0 1 illegal: No possible last move, all moves rejected
2N3B1/N1R4k/qp4r1/1nQqQ2r/2q1R1R1/4R1pN/Nn5b/KBQbB1b1 b - - 0 1 legal: proof: e4 c5 d4 h5 dxc5 f5 g4 fxe4 gxh5 a5 b4 Ra7 bxa5 Ra8 Kd2 Kf7 Kc3 e5 Kb2 g5 f4 Kg7 c4 d5 h4 b6 a4 d4 c6 e3 a6 e4 a7 d3 c7 e2 f5 e1B h6+ Kh7 c5 g4 a5 e3 h5 e2 a6 d2 c6 g3 f6 Ne7 f7 Bb7 c8N Nf5 c7 Ne7 Rh4 Qd4+ Nc3 Qg7 Re4 Qg5 Nh3 Rg8 Na2 Kh8 h7 Bh6 f8Q Ng6 Qc5 Kg7 h8R Bf2 Kb1 e1Q Bc4 Nf4 Bf7 Qd5 Rh7+ Kf6 Ba3 Bg1 Qdc1 d1Q Bb4 Qf1 Be1 Rg6 Rg7 Bg5 h6 Qdc4 h7 Nd3 h8Q Nc6 Re3 Rb8 a8R Nd4 Na7 Nb5 c8N Bh2 Re4 Be3 Qe8 Rh6 Rgg4 Rg6 Qee7+ Kg7 Qeg5 Nf2 Qge5+ Kh7 Kb2 Qfd3 Rb1 Q1b3+ Ka1 Nd1 Rb2 Bd5 Re2 Beg1 R2e3 Rb7 Rb8 Nb2 Ra8 Re7 Rb8 Re8 Rb7 Rh8 Rc7 Qba4 Nc6 Qa5 a7 Qa6 a8B Be6 N6a7 Qdd5 Rgf4 Bg4 Bc6 Bf3 Rg4 Bd1 Bd7 Nc3 Ba4 Nb5 Bc2 Rh6 Bd3 Rh5 Bc2 Rg8 Bb1 Rg6 Bg8+
4nQ1b/1kN1qpQr/1b1B1n1Q/Rb2B1K1/4B1Q1/2N2N2/4qpn1/2rRR1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 g5 Kg4 c5 h4 a5 d4 c4 e4 a4 b4 f3 d6 a3 h6 c3 h5 c2 b6 Kc6+ d7 f2 d5+ Kb7 h7 a2 h6 Na6 b5 Bg7 e5 Kb8 e6 Bb2 e7 Qc7 e8R Qc4+ Bf4+ Kb7 d6 c1B Re1 Qe4 Bd3 Qc6 Be4 Nc5 Nf3 Be3 Be5 Na6 Nc3 Nc7 Rhg1 Ne8 Kh5 g4 d8R g3 d7 Bd4 Kg5 g2 Bd6 Ngf6 Qa4 Rf8 h8Q Ra5 Rad1 a1N h7 Nc2 Qg7 Ne3 h8Q Rg8 Qc4 Ra1 Qh6 Rh8 Qe6 Rc1 Qg4 Rh7 Be5 Ka8 b7+ Ka7 b8B+ Kb7 Bbd6 Bb6 Rd5 Qc4 Rdd1+ Ka7 Rd5 Ba6 Ra8+ Kb7 d8Q Ba1 Qe7+ Qc7 Qef8 Qe7 Rd8 Bd4 b6 Bb5 Ra8 Bb2 Ra5 Ba1 Rd1 Bb2 Rge1 g1Q Ra1 Qf1 Ra5 Kc6 b7 Qe2 b8N+ Kb7 Na6 Ng2 Nc7 Bb6 Rg1 Ba1 Rde1 Nf4 Qgh8 Qe6 Na2 Qe7 Rdd1+ N6d5+ Bf6 Ng2 Qhg8 Bad4 Nc3 Qe6 Bfe7 Bh8 Be5 Qd7 B7d6 Qe6 Bb1 Ndf6 Qgg7 Qe7 Be4+
B2kR1KQ/1qn1p3/nr5N/pr4nN/2R1Q2Q/2r2BN1/2RbB2q/1NBb4 b - - 0 1 illegal: No possible last move, all moves rejected
1Kb3b1/nNR3N1/q1B1b3/2nR1QrQ/2Qp4/pBrb1Q2/1b3B2/kR4NR b - - 0 1 illegal: No possible last move, all moves rejected
1RN3B1/k2r1r1Q/r1R1QN1B/b1Rr3p/qN4n1/1p2Q3/3BQ3/NbK2nr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 b5 d4 h5 Kd2 e5 g4 c5 d6 Kc6 a5 Kb7 d7 e4 f6 c4 d5 b3 f7 b2 d6 b4 g6 b3 g5 Na6 f5 Ka7 g7 Kb8 g6 Nb4 a6 Qh4 d8N Qf6 d7 Nd3 a7+ Kc7 Nc6 Kb6 d8Q+ Kb7 Ne2 Nf4 Ra6 Bc5 f8B Bg1 Na3 b1R Qe7+ Bd7 Nb4 Rh7 Nac2 Qf7 f6 Ng2 Nc3 Qe8 f7 Ne3 Qe2 Nf6 g8Q Nfg4 g7 Bf2 Qe5 Bf5 Ncd5 Qa4 Nf6 Bg3 Qe7+ Bc7 Na1 Bg6 Qc5 Ba5 Rc6 Rd8+ Qd4 Rd5 a8N Kb8 Qdd3 Ka7 Nb6 Rh6 Bh3 Nf1+ Kd1 c3 Qh7 e3 g8Q Rb2 Bd2 c2+ Kc1 Bf5 Bg7 Rd7 f8R Rf7 Qe1 e2 Qe3 Rd7 Qd1 e1R Qge6 Re2 Rb8 Rf2 Qde2 Be4 Ng8 Rff7 Nf6 Rg6 Bf8 Ra2 Bh6 Rg5 Rh2 Rgd5 Rf2 Ra3 Rf4 Bg6 Rfc4 Ra2 R4c5 Ra3 Kb2 c1R Bg2 Bb1 Be4 Nfh2 Bd3 Rg1 Bc4 Nf1 Kc1 Ra2 Bd3 Rfe7 Bg6 Rg7 Bf7 Ra3 Bg8 Rgf7 Q3e5 Ra2 Q5e3 Qb5 Na8 Bc7 Q6e5 Ra6 Qe6 Ba5 Nb6 Qa4 Nc8+
3b1R2/4Bn2/1RkN1Qp1/rNrN1bqn/4BR2/5rRp/6QK/rB1rN1Q1 b - - 0 1 illegal: No proof kernel
R2K1b2/2r1nB2/3BN3/N1Bb1Q2/2pN1Rpn/r5k1/3R2rQ/n1QqR1Nr b - - 0 1 illegal: No possible last move
k1K5/rQ3n2/4rN1R/1qR1NN1p/R2r1p2/3bb1Qn/3QRB1B/n1rB1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb7 e4 f5 d4 a5 g4 h6 b4 c4 g6 c3 d6 a4 d7 f3 Ke6 a3 g7 c2 d5 a2 g5 f2 e5 Be7 b6 Ra6 d6 Rh7 g6 Qf8 b5 Ra4 Nf3 Ra6 Qd5+ Nc6 Be3 c1N Nh4 Bg5 Nd2 Bd8 Ndf3 Ne7 g8N Nb3 g7 Ka8 b7+ Kb8 Nf6 Qe8 g8B Ra7 Bf7 Ra4 Bh5 Ra6 Rc1 a1R Rc5 Ka7 b8B+ Ka8 b6 Bb7 Qd3 Bc7 d8R Qf7+ Kd7 Qd5 e6 Ng6+ e7 Rc1 Ne5 Nf4 Bd1 Nh3 Rg8 Rc4 Rg4 Na1 Rd4 Rc1 Ra4 Nd8 Qa3 Nf7 e8R Bc6+ Kc8 Bb5 d7 Bd3 d8Q Qc6 Qc3 Qb5 Qd7 Rg7 Qd2 Rg4 Rh2 Ra7 Rh8 h5 Rh6 Nd8 Qg7 Rd4 Qg3 Nf7 Bfe2 f1R Bf2 Re1 Bf1 Bd8 Bc7 Ra5 b7+ Ka7 Nc6+ Ka6 b8Q Ree4 Qg7 Re2 Bfg3 Ne5 Ng4 Bg5 Nf6 Re1 Qd7 Nf7 Qd5 Re3 Re2 Re6 Bf2 Bf4 Qf3 Be3 Bh2 f4 Qa8+ Kb6 Ne5 Ra6 Qae4 Ka7 Nf5 Ra5 Qg3 Raa6 Nc6+ Ka8 Qd5 Ra5 Qd7 Ra6 Ne5 Ra7 Qb7+
1b6/1N1N2B1/2q2b1Q/BRRpn3/p3k1QB/QRKbr2b/5rB1/4QnrN b - - 0 1 illegal: No possible last move
1b1RB3/2nRB3/2rrQ1N1/3pRN2/pk1Kb1b1/4N1NQ/3n3q/BQr2bR1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 b4 e5 c4 Ke7 g4 Kd6 f4 a4 g6 h4 g5 h3 c5+ Kd5 c6 h2 c7 d6 b6 Kc6 b7 Kb5 g7 d5 f6 Nc6 b8R+ Bb7 c8Q Na5 g6 Nh6 g8N Nb3 g7 Qe7 f7 Qg5 f5 Ra6 f6 Rd6 Qh3 Qh5 Bb2 Rh7 Ne2 Nf5 Ng3 Rh6 Na3+ Kc6 b5+ Kc5 b6 Rd7 Rg1 h1B Nc4 Ba6 b7 Kb4 Qb1 Bd6 f8N Nd2 Rd8 Bb8 f7 Nd6 Ne7 Ne8 g8Q Rdd6 Rd7 Nc7 Nfg6 Bb5 f8B e4+ Kc2 e3 Kd3 e2 Qge6 e1R Nef5 Rd1 Be7 Rc1 Be2 Qh4 Bh5 Qf4 Re1 Bf3 Re5 Be4+ Ke2 Qh4 Kf2 d3 Ke3 Qf4+ Kd4 Qf2+ Nce3 Qh2 Nh8 Nc4 Bf7 d2 Be8 d1B Ng6 Bdf3 Ra3 Bg4 Ba1+ Ka5 Rc3 Nd2 Rc6 Bf1 Rb6 Ba7 b8R Rdc6 Rbd8 Bb8 Qa2 Rd6 Rc6 Kb4 Rc2 Nb1 Rg2 Nd2 Qb1+ Ka5 Rg1 Rdc6 Ngh4 Rg6 Qf7 Rgf6 Ng6 Rfd6 Bb2 Kb5 Qe6 Kb4 Ba1+
1nKb4/B2n4/2Nr2Rr/1p1NQR1Q/B1k3r1/nr1b3q/1RNNQ1Bp/7B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 b5 Kg4 c5 d4 e5 a4 h6 f4 b3 d6 e4 d7 b2 d5 e3 d6 c4 g6+ Kf6 a5 e2 a6 e1N a7 c3 g7 c2 Na3 b1R Rh2 Qe7 d8Q Nf3 d7 Rh7 Qe8 Bb7 d8N Rb4 Qh5 Rc4 Be3 c1R Nc6 Qd7 Nc2 Qe8 Qe2 Bb4 Ra6 Ng5 Nf3 Qe4 Nd2 Ne7 g8B Rc3 Bb3 Qe5 Ba4 Ba3 g3 Qe6 Bg2 Nd7 Bb6 Rah8 a8B Ne4 Ba7 Nd6 Bh1 Qb3 Rb6 Kg7 f6+ Kg8 f5 Rg1 Ra6 Nc4 f7+ Kg7 f8N Kf6 Ng6 Rd8 Nf4 Bb2 Rb6 Na3 Ra6 Qe6 Rb6 Rb3 Nd5+ Kg7 Kf4 Bf6 g4 Kf8 g5 Rgg3 N6b4 Nc6 g6 Ncb8 Nc6 Be7 f6 Qh3 f7 Rg4+ Kf5 Bg5 Qh4 h5 Ke6 Rh6 Rf2 Kg7 f8R Be7 Qg3 h4 R8f5 Bf6 Kd6 Kg8 g7 Kf7 Kc7 Bc8 Qed3 Ke6 Qe2+ Re4 Rf1 Nf8 N6b4+ Nc6 Nde3 Qg2 Rb1 h3 Rh5 h2 Rb2 Qh3 Bb7 Rg4 g8Q+ Ke7 Qg7+ Ke6 Qh4 Bd7 Rg5 Be8 Qh8 Bg6 Qh5 Bd3 Rf5 Rdd4 Ba8 Nd7 Kc8 Bd8 Ra6 Rd5 Rb6 Kd6 Qe5+ Kc5 Bb7 Ncb8 Rg6+ Bb6 Nd4 Rf4 Nbc2 Rg4 Na1 Kb4 Nac2+ Kc3 Bc6 Rd6 Bcg2 Ba5 Nb4 Bb6 Nec2 Bd8 Ndc6+ Rgd4 Nf1 Kc4 Nd5 Rg4 Nd2#
5B2/2b1B3/RpnQn1NQ/1N1k3N/bR5K/R1p3rB/2r4n/rQ1nqRQ1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 Kf2 g5 Kg3 c5 d4 e5 a4 c4 h4 b6 h6 b3 h7 c3 a5 e4 d6 g4 d5 b2 h5 e3 f6 e2 d7 e1R d6 Ke6 a6 Re5 a7 Ba6 h6 Nc6 f5+ Kf7 Ne2 Qc8 d8R Re7 d7 Qb7 Bg5 Re4 Nf4 Qc8 Kh4 g3 Na3 b1N Bh3 g2 Qg1 Nd4 Nb5 Bd6 Ra3 Re3 Nh5 Nd2 Re8 Qc6 d8Q Nf1 Re4 Ne6 Rb4 Bc7 Qd1 Ne7 Qb1 Rhe8 h8Q Nh2 h7 Rg3 Qa2 Red8 Qab1 Rd2 Qb8 Bc8 h8Q Qe8 Qh6 Nc6 Ra6 Bd7 Ra3 Bd8 Qf4 Rc2 Ra6 Bc7 Ra3 Rd8 a8R Rc8 R8a6 Ra8 Qgd4 Qe7 Rf1 g1N Qdf2 Ne2 Qg1 Nc1 Na7 Nd3 Nb5 Ke8 f7+ Kd8 f8B Nf2 f6 Nd1 f7 Be8 Qfe3 Kd7 Na7 Kd6 Qf4+ Kd5 Nb5 Ng7 Bf6 Qe1 B6e7 Ne6 Bg7 Qe5 f8N Qe2 Ng6 Qe1 Bgf8 Bd7 Ra7 Be8 Rb7 Ra4 Ra7 Bd7 Ra6 Be8 Rab3 Ra1 Rba3 Nb8 Nd4 Ba4 Nb5 Nc6 Qd6+
1BBb2n1/bp2p1k1/1N1QRBN1/2N2QbK/4B3/3R3Q/Nrb1n2r/1n2q1R1 b - - 0 1 illegal: No possible last move, all moves rejected
4N2q/4QrQ1/rb2K1Q1/2N5/1q5B/RNq1Nb1B/2nppnqk/1RBR3Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Qd3 Kf6 Kf3 Ke5 Kg4 g5 h4 d5 b4 a5 f4+ Kf6 c4 e5 c5 a4 h6 a3 c6 a2 h5 e4 b6 e3 h7 e2 h6 Ra3 c7 Be6 c8N Be7 b7 Ra8 b5 Qd7 b6 Ra6 Na3 Bd6 Nc4 Qb5 Ne3 Bc5 Nd6 Nc6 b8B Nb4 b7 Nc2 Nf3 Qb6 Qe4 d3 Nd2 d4 Qc6 Bd5 Ne8+ Kf7 f6 Kg6 f7+ Nf6+ Kg3 g4 f8Q Qb1 f5+ Kg5 Qe7 Rf8 h8Q Bf3 h7 Qb6 Rb1 a1Q Nb3 Qb4 Rg1 Kh5 Kf4 Kh4 Ke5 g3 Bc7 g2 b8R Kg3 Rb5 d2 Ra5 Ne4 f6 Nf2 f7 Bb6 Ra3 d3+ Kf5+ Kh3 Qg6 Qb2 Bf4 Qa1 Bg5 Kg3 Rh1 g1Q Ke6 Qb2 Bh3 Qg2 Qhg8 Qa1 h8Q Qb2 Qhh6 Qh8 Rf1 Ne1 Bg4 Nc2 Bh5 Kh3 Q8g7 Kg3 Rg1 Qc3 Qhh7 d1Q Bg4 Qdd2 Rd1 Qc7 Qh1 Qb4 Bf5 d2 Bh3 Rg8 f8N Qcc3 Nd7 Rf8 Ndc5 Rf7 Qf1 Kh2 Bh4 Qb5 Qe1 Qbb4 Qh1+
qn4b1/Q4rrB/2Bp2Q1/3RB1N1/pRQN1RK1/4b1N1/1r4q1/nN1k1r1R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 h4 Ke5 b4 g5 c4 a5 b6 a4 f6 d6 b5 d3 b7 Kd4 b6 e5 f7 d2 h6 Bf5 c5 Qf6 c6 Na6 b8R Nb4 b7 Qg6 c7 Nc2 c8B Nf6 h7 Ne4 h5 Nf6 h6 Ne8 Qe2 d1Q Bg2 Qg8 Bf4 Be4+ Kg4 Nc7 Bf5 Qf1 f3 Bg7 f8N Na6 Ra2 Na1 Rd2+ Bd3 Ne6+ Kc4 Rd1 e4 Be5 Kb3 f4 e3 Bc6 Bc4 Rd5 Ra7 Be4 Qf2 f5 Qd8 Qf1 e2 f6 e1R Ne2 Qg2+ Ng3 Rf8 h8R Rf7 h7 Bh6 Rf8 Re2 h8N Rb2 Bh7 Rg7 f7 Qe8 Kf5 Kc2 Qf4 g4 Nd4+ Kd3 Qg5 Ba2 Qg6 Be3 Rd8 Bc4 b8Q Ba2 Qc8 Nb8 Rd7 Qd8 Rb7 Bc4 Rb4 Qe8 Ne4 g3 Kg4 Re7 Qd7 Qc8 Qe6 Qa6 Qd7 Qa8 Qa7 Rd7 Rg8 Rc7 f8Q Rcf7 Qc8 Bb3 Rf8 Ba2 Nb3+ Kc2 Qca6 Rf1 Nd4+ Kd1 Rf4 Rb7 Rdb5 Bg8 Rd5 Rf7 Qc4 Qg1 Qb5 g2 Ng3 Qh2 Qc4 g1R Qa2 Qg2 Qc4 Rg7 Nf7 Rff2 Rh4 Rgf1 Ng5 Rf3 Rh1 Rff2 Re4 Rff7 Rf4
2NQ3B/2qpQKQr/n2q1B2/krbR1N2/BNbprB2/3QnR2/1R5r/8 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 Kd3 e5 Ke4 a5 c4 a4 h4 g4 f4 g3 b4 a3 c5 g2 c6 a2 h6 Qc7 h5 Kd8 h7 Ra3 h6 Bb7 f6 Bg7 Kf5 e4 Kg6 e3 f7 e2 b6 e1Q f5 Bf6 b5 Na6 Rh3 Qd6 c7+ Kc8 f8Q+ Bd8+ f6 Ba8 Qg7 Kb7 c8N Nb4 Qd3 Qd2 Nf3 g1R+ Kf7 Q6h2 Nc3 Qd1 Nh4 Be7 Nf5 Qde2 Bf4 Ra4 Rf3 Rh1 Nd5 Na6 Nb4 Ra5 Rb1 a1R Rb2 Qe3 Be2 Rhe1 Bd1 Qe5 Bc2 Bc5 Ba4 Kb8 b7 Kc7 b8R Ra2 Rb6 Ne7 Rd6 Re4 Rd5 Qd6 b6+ Kb7 Rh3 Rb5 Rf3 Kb8 b7 Kc7 b8B+ Kb7 Bc7 Qc2 Bd8 Qc3 Nh4 Nf5 Be7 Ne3 Nf5 Ra1 Bd8 Rh1 Be7 Rh2 Bd8 Rg8 h8B Rge8 h7 R8e7+ Kg8 Qc1 f7 Qc2 f8Q Rf7 Bf6 Kc7 Re5 Bd5 Qe7 Bc4 Rd5 Qc3 Na7 Kb6 Nc8+ Ka5 Qgf8 Qc7 Qfd8 Rg7+ Kf8 Qa3 Ke8 Rg6 Kf7 Rgh6 B6e5 R6h4 Bhf6 Rh5 h8Q Rh7+ Qg7 Bb6 Nc2 Qad6 Nb4 Bc5 Bh4 Rh8 Qg4 Rh5 Bh8 Rh6 Qg7 Rh7 Bf6
1KB2N2/R1Nr2Q1/bQ3RN1/1qB2nbR/k7/1rpnb1Q1/1Np1B2p/nQ6 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 Ke2 Kd7 Ke3 a5 Kd4 h5 Ke5 c5 g4 e6 f4 a4 d4 h4 b4 c3 b6 Kc6 b7 h3 g6 a3 g7 c4 d5+ Kb5 f6 a2 f5 c2 g5 Rh5 g6 Qd7 f7 Ra5 d6 Na6 b8Q+ Ka4+ b5 c3 Ne2 Be7 f8N Nf6 g8B Qd8 d7 Bb7 g7 Nd5 b6 Nc5 Nd2 Kb4 Nf4 Ra7 N4g6 Ka4 Ba3 Ra6 Qb1 Ra8 Nc4 Nc7 Be2 Bf6+ Kd6 e5 Be6 e4 g8Q e3 Qg7 Bg5 f6 Ba6 b7 Ra7 f7 Qe8 d8Q Qb5 Bc8 Nd3 Bc5 Ne6 Qb6 Nd4 Kc7 Nf5 Ne6 Rh4 f8N h2 Rf1 Nh6 Rf6 Nf5 Bg4 e2 Nb2+ Kb3 Bf3 e1B Be2 Re4 Qd6 Rd4 Qg3 Ra8 Qa7 Bf2 b8R Bfe3 Qb6 Rb4 Rb7 Ra7 Kb8 Ka3 Re7 Rd7 Nc7 Kb3 Re4 Ka3 Rh4 Kb3 Qh1 Ka3 Rh5 Kb3 Rf1 a1N Rf4 Ka3 Qb1 Kb3 Re4 Ka3 Re7 Kb3 Nd1+ Ka4 Ref7 Rb3 Re7 Ra3 Nb2+ Kb3 Re8 Rd8 Nce6 Rd6 Re7 Rd8 Ra7 Rd7 Nd1+ Ka4 Nc7 Rb3 Nb2+
3bNr1B/NQ1B4/R2nBRb1/2k3br/1qNpp1N1/4R3/1Q2pn1R/1KQ3n1 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 dxc5 h5 axb5 Rh6 gxh5 Rh8 Kd2 g5 c4 d5 Kc2 Kd7 f4 a5 b4 e5 h4 g4 c6+ Kd6 b6 g3 c7 g2 f5 a4 b5 e3 f6 e2 f7 a3 h6 e4 b7 a2 c5+ Kd7 h5 Na6 b8N+ Ke6 b6 Rh7 b7 Qd7 c6 Kd6 Nf3 g1N Na3 Qh3 Nc4+ Kc5 Nfe5 Ra7 Ng4 Rg7 h7 Bd6 f8R Bg3 h8Q Bh2 h6 Kb4 h7 Qg2 Nd7 Bf4 Rh3 Ra8 Re3 Nf6 Bb2 Qf3 Bh3 Rg5 Qc1 Ne8 Ndf6 Nd6 b8Q+ Kc5 Qb7 Rh5 Ne8 Bf5 c8B Bg6 c7 Bg5 Bd7 Qf4 Bg7 Nb4+ Kb2 Rb8 c8N Nd3+ Kc2 Qe5 Na7 Qd4 Be5 Ra8 Rf6 Nf2 Qg7 Rd8 h8R Rc8 Nh6 Ra8 Bhe6 Rb8 Ng4 Rd8 Rb1 a1B Rb6 Bc3 Rh6 Ba5 Kb1 Rb8 Ra6 Bd8 Qbb2 Qd2 Rh7 d4 Qf7 Rh1 Rh2 Qb4 Rff3 Rc8 Bh8 Ra8 Rf6 Rc8 Rg2 Rh5 Rh2 Ba5 Ng7 Rf8 Ne8 Bb6 Ba4 Ba5 Qb7 Bd8 Bad7
2qBN1bN/1BQ3r1/r5p1/nR2Q1n1/Q1Q5/R3p1b1/p3RbK1/kNRnB3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kd7 f4 Kd6 Kf2 Kc5 d4+ Kb4 b6 a5 d6 e5 f6 c5 f7 g6 b7 c4 f5 c3 f6 c2 d5 Kb3 h5 a4 h6 e4 h7 g3+ Kg2 e3 d7 a3 d6 Ra6 Bd2 Ne7 Ne2 Nf5 Nd4+ Ka4 b4 Qa5 d8Q Bd7 b5 Nh6 b6 Nf5 Nb5 Kb3 Be1 Kb2 Nc7 c1N Qa4 Nc6 b8Q Nd3 b7 Nh6 Ne8 Nf2 Qdc7 Be6 d7 Rg8 h8N Qc3 d8B Bd6 f8Q Rg7 f7 Na5 Qg8 Nd1 f8R Nf7 Bc4 Ng5 Rf2+ Qc2 Re2 Bf7 Bd5 a2 Rh4 Be6 Rc4 Bf4 Rc3 Be5 Ra3 Bd6 Qf8 Bg8 Qff4 Be5 Qfc4 Bf4 Kh1 g2+ Kg1 Bg3 Qe5+ Kc1 Qbc7 Qc3 b8R Qc2 Bb7 Qc3 Nd2+ Kb2 Qee4 Qc2 Rc1 Qc3 Nb1+ Ka1 Qee6 Qc2 Qed5 Qf5 Qdb5 Qc8 Qbc5 Bf2+ Kh2 g1B+ Kg2 Bg3 Q5e5+ Nc3 Bc6 B1f2 Rbb2 Nd1 Bf3 Ra8 Bb7 Ra6 Rb5+
rkr1r1q1/N1n1Rb1p/1B3b2/1RN2Qb1/2R3K1/B1N1p2p/BQ3Q2/BN3n2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ra4 Kd7 Qc2 a5 Ke2 e5 Kf3 c5 d4 Kc7 g4 c4 b4 c3 g5 h3 d6+ Kb7 d7 e4+ Kg4 Ra6 f4 Rg6 f6 Qe7 f7 Rc6 g6 Rf6 d5 Rb6 f5 Qe8 d8B Na6 g7 Kb8 d6 Rb7 d7 Bc5 f8N Qe6 b6 Qa2 f6 Qd5 f7 Qd2 b5 Be7 Ne6 Ka8 f8Q Qd5 Qff2 Bf8 Bc4 Ne7 g8R Rb8 Rg5 Rg8 Ne2 Bg7 Re1 Nf5 Bf6 Ng3 d8B Nf1 Bb3 Bb7 Rc4 a4 Qd3 c2 Bfb2 a3 Nec3 a2 Re3 Bc6 b7+ Ka7 Bc7 Rbc8 b8N a1R b6+ Ka8 b7+ Ka7 Rf5 Ra2 Ba1 Be8 Rh5 Ra5 Ba3 c1B Ba2 Bf6+ Rg5 Ra4 Ba5 Nc7 Nc6+ Ka6 b8Q Rf8 Ned8 Qg8 Qbb2 Bf7 Bb6 Re8 Ne6 Kb7 Qd5 Raa8 Na7+ Kb8 Qd7 Qh8 Rb5 Bd2 Re2 Bdg5 Nc5 Qg7 Qdf5 Qg8 Rd2 e3 Rd7 Bh8 Re7 Bd4 Ra4 Bdf6 Rc4
1B6/rQ1R1qpN/R1Q3bp/QNnNB1bB/2nrp2N/1b2n2K/4B3/2k4R b - - 0 1 illegal: No proof kernel
5nr1/p1RQK1b1/B3Qr1B/1b3Q1N/2pq1N1p/RR1nnB1r/1R1Q3k/4N3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 h5 Kg5 Ke5 g4 c5 b4 e6+ f6 h3 f4+ Ke4 d4 h2 f5 e5 d6 h4 d7 Bg7 d5 Bb7 b6 Bf8 b5 Qc7 d8N Bc6 b7 Be7 b6 Qc8 d6 Na6 b8R Ba4 b7 Nb4 d7 Bd6 f7 Nc2 f8Q Bc6 f6 Bd5 f7 Bc4 Qd2 Ba6 Qh6 Bd3 f8Q Ne7 Kf6 Bb5 g5 Nd4 g6 Rh7 g7 Ne2 g8B Nd4 Ra3 Nef5 Nh3 Ne6 Nf4 Ne3 Nh5 Kf3 Bg2+ Kg4 Bf3+ Kh3 Qf7 Bc7 Ke7 Nf8 Ne6 e4 d8Q Be5 Q8d7 Bg7 Qg5 Rh6 Qgf5+ Ng4 Rg1 h1R Rg2 Qc6 Rc8 e3 b8R e2 Rc7 Rf6 Rg3+ Kh2 Nef4 Qe4+ Qf7e6 Ne3 Bf7 Ba4 Rb2 Bb5 Rab3 Rb8 Na3 Qd4 Nc2 c4 Ne1 Rd8 Bb7 Rc8 Ba6 Ra8 Qed6 Rd8 Bd5 Rc8 Q6e6 Rb8 Neg2 e1N Bf3 Nd3 Rh3+ Kg1 Rg3 Rh3 Ra3 Kh2 Rab3 Nh7 Ra3 Rg8 Ne1+ Ng2 Rab3 Nf8 Ra3 Rh8 Qde3 Qe5 Bd1 Qd5 Ng6 Nc5 Qh6 Qd4 Rgb3 Rg8 Bf3 Nd3 Qhe3 Ne5 Qc3 Nd3 Bh6 Kh1 Ngf4 Kh2 Be2 Ne3 Qd2 Kh1 Bf3+ Kg1 Be2 Kh2 Bf3+
5r2/pNNk2r1/rN3b2/1nRp1K1b/p1Q2n2/R1Q1R2B/BR3B2/1n1Q2qN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 Rh6 dxc5 Rh8 a4 bxa4 Ke2 d5 Kf3 e5 Kg4 g5 h4 e4 f4 e3 c4 e2 b4 e1N c6 Nd3 c5 Bb7 f6 Qc7 f5 Qe5 b5 Bh6 b6 Bc8 c7 Ba6 c8R+ Kd7 f7 Qd6 f8Q Qc7 b7 Ne1 f6 Ke6 c6 Nf3 f7 Rh7 Rh3 Qd8 c7 Qd6 Ra3 Qe5 Qb4 Be2 f8N+ Kf7 Ne6 Na6 b8R Qf6 Qc4 Ke7 Be3 Rf7 Rb2 Rb8 Bf2 Rb4 Nd2 Bf8 h6 Qh8 h7 Rb8 h5 Rf6 h6 Qg7 h8Q Kd7 h7 Be7 Rg3 Bd8 Nh3 Ne7 Re3 Qg6 Qg7 Rf8 h8N Rb6 Qgc3 Qg7 Nf7 Ng6 Kf5 Bf6 Nfd8 g4 Nb7 Nf4 Nb3 Nd2 N3a5 Bf3 Bd3 Rc6 Bb1 Rd6 Ba2 Nb1 Qc5 Qg8 Nc4 Be2 Rgf3 g3 Q5d4 g2 Nb6+ Ke7 Qdc4 g1R Be1 Rg2 Nf2 Rg7 Nh1 Rc6 Rg3 Bh5 Bf2 Rd6 Rd8 Rc6 c8B Nc7 Rgf3 Nb5 Nc7+ Re6 Rg3 Rgf7 Rgf3 Qg1 Rd6 Rh7 Rc6 Rg7 Rc5 Qg3 Q3d4 Qg1 Ra3 Rc6 Qdc3 Rd6 Be6 Rc6 Re3 Rd6 Nd7 Ra6 Nb6 Bh4+ Ke5 Bg5 Bh3 Bh4 Nba8 Bf6+ Kf5+ Kd7 Nb6+
b1k2KBq/r2R2B1/2N1p1RN/bQpR1BB1/n4n2/1N6/r4Q1p/nR1n2Q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 h5 g4 h3 b4 e6 f4 h2 d4 h4 d6 h3 f6 a4 f7 a3 f5 a2 g5 Bb7 b6 Ra6 b5 Ra7 f6 Ra8 g6 Ra4 g7 Nh6 g8B Qc7 d5 Bg7 f8Q Na6 Nd2 Nf5 Ne2 Nb4 Nd4 Rh5 Rg1 h1N Rg6 h2 N2b3 Nh6+ Nf5 Rh4 Bd3 Qc8 Qg1 Ng3 Rb1 a1N Bg5 Ba6 b7 Qc6 b8Q Rh5 b6 Bc8 b7 Qa6 Qf7+ Kd8 d7 Qa8 Kd6 Ng4 Nh6 Ne3 Bf5 Nd3 Qa7 Rc4 b8N Nf4 Qa4 Bb7 Qb5 Bh8 Qh7 Ra4 f7+ Bf6 f8B Ra2 Qf7 Nge2 Bg7 Be7+ Ke5 Nc3 Nc6+ Kc7 d8R Na4 Rd7+ Kc8 d6 Bd8 Qf8 Rh3 Qf7 Ba5 Kf6 Qb8 Ke7 Nd1 Kf8 Ba8 Qf6 Rd3 Qb2 Rd2 Qbd4 Ra3 Qdf2 Rda2 Rb7 Nab2 Ke8 Bc3 Bh7 Ra7 Re7 Bb4 d7+ Kc7+ Kf7 Qh8 Bg8 Ba5 Kf8 Na4 Rf7 Nd5 d8R+ Ne7 Rd6 Kc8 Rd4 Nd5 Rd7 Nf4 R4d5
KBNr4/NR1Q2R1/QpB2N1k/6rQ/3ppbr1/2B4n/1B1nqr2/RR3b2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 d5 Kd4 g5 c4 Kg7 f4 g4 h4 b6 a4 e6 f6+ Kh6 f5+ Kh7 c6 b3 c7 g3 h6 g2 c5 b2 h5 Ra5 f7 Bg7+ f6 Nd7 f8B Rb5 c6 Nc5 a5 Bd7 c8R Ne4 a6 Ng3 c7 Rc5 a7 Be8 a8Q Ra5 Bd6 Ra6 Na3 b1R Bb5 Ne7 Ne2 g1R Nc3 Nf1 Bb2 Bd7 Ne4 Rf8 Rb8 Rg2 c8N Ra5 Qa6 Kg8 h7+ Kf7 h8B Rg1 h6 Kg6 h7 Bh6 f7 Qe8 Bde5 Rg8 f8R Bc6 Rf4 Rg4 Rf7 Rf8 Ba4 Bb5 Bc7 Bd3 Nb5 Bc1 Nba7 e5+ Kc3 Bh6 Kb4 Bb5 Qd4 Rd1 Bg7 Rd2 h8Q Rf2 Bd6 Nd2 Rhb1 Bc4 Bf6 Kh5 Rg7 Bf1 Qdd3 Ng6 Qdb5 Qe6 Qd7 Rd8 Qhe8 Rc5 Qef7 Rc4+ Kb5 Rg3 Qfe8 Bg5 Bc7 Kh6 Bd6 Rd4+ Kc6 Nf4 Kb7 Nh3 Bc6 Qg4 Qef7 Qe2 Ka8 Be3 Rb7 Rg5 Bb8 Rb4 Ng3 Rbg4 Nh5 e4 Bfc3 d4 Nf6 Bf4 Qh5+
2BK1B1r/nB1n4/1n1Rk1bQ/1p3p2/NR3r1p/N1pNq3/1R1N4/1RQ3bQ b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kg3 f5 Kf4 h5 g4 b5 a4 c5 d4 b3 e4 b2 e6+ Kd6 e7 c4 e8R h4 e5+ Kd7 g6 c3 d6 Ra6 e6+ Kc6 Ke5 Qg5 d7 Bh6 d8N+ Kc7 e7 Kd7 g7 Rc6 a5 Na6 d5 Qg6 d6 Rh7 g5 Qh5 g6 Rc4 Ra2 Qg5 Nb7 Ra4 Nf3 Qd2 Na3 b1N Nc5+ Kc6 d7 Qb2 Ke6 Rc4 Nd3 Qh2 Nd2 Rc5 Bg2+ Kc7 Bb7 Bg5 Rb2 Nf6 g8Q Rh8 g7 Rd5 Qf8 Nb4 g8B Rh7 a6 Qf2 a7 Qg3 Qh6 Rd4 a8N+ Kb8 Qf1 Be3 Nb6 Kc7 Na4 Bg1 Rd8 Rc4 e8R Rh8 Ke7 Rf4 Be6 Qf3 Rg8 Qe3 Rg4 Nc6+ Kf7 Rf3 Rgb4 Na7 Ke7 Rf4 Qh3 Bh2 Re1 Bg1 Qh1 Rd4 Ne4 Nd2 Rd1 Nc4 Bd2 Qf2 Rdb1 Nb6 Bg5 Qe2 Nd2 Rc4 Be3 Rf4 Bc5 Qe3 Rf8 Kb8 d8Q Nfd7 Qe8 Kc7 Rf6 Nf8 Qeg6 Bd7 Qgg5 Be8 Rg6 Nfd7 Rf6 Ne5 Bec8 Ned7+ Re6 Bh2 Qgg1 Bg6 Qc1 Bg1 Bd4 Qe1 Bg7 Qe3 Bf8 Ne5 Kf6 Kd8 Rc6 Ke8 Ke6 Ned7+ Kd6 Kf7 Kc7 Rh7 Rd6 Rh8 Rdd4 Kf6 Kd8 Ke6 Rd6+
2RBn2Q/b1n1ppB1/N5B1/2r3NK/1QpR4/BRbQ2kN/2N4p/1q2rb2 b - - 0 1 illegal: No proof kernel
3kq3/1N6/1B3b1p/q1p2r2/1Q2RNN1/R2pp1Q1/QR4BK/nnQrBbR1 b - - 0 1 illegal: No possible last move
Rq1BB3/1N1Bb3/3BBR1K/pn2q2n/Nr1R2B1/1R2p3/5qNk/Q4n2 b - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 a5 e4 f5 exf5 g5 a4 gxh4 axb5 Nh6 b4 Qd6 b6 Kd7 b5 Ba6 bxa6 Ra7 bxa7 Ng8 a8B Ke8 Qe2 Qd7 Qd1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kg5 h5 g4 c5 d4+ Ke4 f4 e5+ f6 h3 d6+ Nc6 a7 h4 d5 c4 f5 h2 d7 h3 d6 c3 Ra3 c2 Rb3 Ne7 f7 Qc7 d8N Ng8 d7 Qb6 f6 Rh4 Be2 Bd6 f8R Bc7 f7 Qb8 Ba3 c1N Nf3 Rh7 Nb7 Nd4 d8B Rh4 Bd6 Bb6 Ne1 Nf6 Ng2 Nh5 Kh6 Nb5 g5 Bc5 Bg4 Ne2 g6 Neg3 g7 Nf1 g8B Ba3 Rg1 h1Q Qc1 h2 Nc3+ Kd4 Bd7 e4 Na4 e3 Qa1+ Ke4 Re8+ Kf3 f8R+ Rf4 Rf6 Kg3 Re4 Bc5 Rd4 Bb4 Bge6 Ba3 Nh4+ Qg2 Rh1 Qd2 Ng2 Qf2 Rg1 h1Q Be8 Nh2 Rc1 Qhe1 Rc8 Nf1 Rd1 Ng7 Nbc5 Qc3 Bf8 Nd4 Bf3 Qb7 a8B Kh2 Bfg4 Nh5 Rd3 Qa7 Bac6 Nb5 Ra8 Qe5 Bcd7 Qab8 Nb7 Bc5 Bfe7 Rb4 Rd4 Bd6 Bc7 Bc5 Bed8 Be7 Bd6
1r1NN1Rn/3K2b1/q4qR1/b3B1k1/B7/1QN1NBb1/1RrB1r2/nNN4q b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kd3 h5 Ke4 e5 b4 a5 d4 c5 d6 h4 Kd5 a4 d7 e4 g6+ Kf6 b6 e3 b7 e2 g5+ Kg7 Ke6 e1Q+ Ne2 a3 d5 a2 b5 c4 b6 h3 d6 h2 Bd2 f3 Bg2 f2 Qb3 f1R Bf3 Qd1 Nc1 Nc6 b8B c3 b7 Qc7 d8N c2 d7 Qf4 Nf7 Qd4 d8N Qe3+ Ne5 Bb4 f6+ Kf8 f7 Kg7 f8N Qf2 Ng4 Nh6 Nd7 Qde2+ Ne3 Ba5 Nf6 Nd4+ Kd7 Nf7 Nfd5 Qa6 Ndc3 Rh4 Bd6 Nh8 b8R Rh3 Rg1 h1Q Rb7 Rb8 Be5+ Qf6 Rg4 Rh2 Rh4 Qe2 Rh6 Rff2 Rb4 Qc4 Rb6 Kg8 g7 Rhg2 Nb7 Kf7 g8N Kg7 g6 Qa6 Nd8 Rh2 Ne7 Rhg2 Nc8 Rh2 Nd6 Rhg2 Nd3 c1B Rb5 Ba3 Nc1 Nc2 Rb6 Kf8 Ne8 Bd6 Qa4 Kg8 g7 Bc7 Rb2 Rh2 Rg6 Kh7 Qb3 Bd6 Rg3 Kh6 g8B Bdc7 Rh3+ Kg5 Bc4 Rhg2 Bb5 Rh2 Ba4 Rhg2 Na3 Rh2 Rab1 a1B Rh6 Bd6 N1a2 Bdc7 Rg1+ Rhg2 Nc1 Bd6 Bd4 Bg3 Be5 Rh2 Ra2 Bb2 Nab1 Na1 Rg2 Ba3 Rg1 Bf8 Rb2 Bg7 Bb5 Rfg2 Ra2 Bf4 Ba4 Bf8 Nc2 Kf5 Rb2 Re2 Rg3 Rhf2 Rg8 Bg3 Be1 Bg7 Ne3+ Kg5 Ncd1 Qf4 Ndc3 Rc2 Bd2 Qff6 Rg6+
4b1RN/3QKRB1/3R1Bb1/2N3bn/pR1qnq2/1N2BB2/3nr3/1kRR3b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 c3 d7 c2 Ke6 Kb3 d6 h4 g7 h3 f5 Rh5 b6 Ra7 f7 Rb7 f6 Rg5 Ne2 Rd5 Ra2 Rd3 Nf4 Ra7 b7 Nh6 g8R Nf5 Bg2 Rc3 Ng6 Ng3 Nh8 Nh5 Be3 Bh6 f8R Bg5 f7 Na6 b8R+ Qb6 Qd2 c1Q Rd1 h1B Bf3 h2 Qd3 Bb7 d8B Bc6 d7 Be4+ Qd6 Kc2 Nd2 Bg6 Nb3 Qd4 Rb4 Kb1 Bd2 Rc5 Rb7 Qg1 Na5 Qg2 b4 Rc3 b5 Qf2 b6 Qg1 Bf4 Qd4 Rg2 Rc6 Rb8 Rac7 Nb3 Rc2 b7 Rb2 Bg4 Rc3 Rgd2 Bhe4 Bf3 Bc6 Qd5 h1B Rc8 Qd3 b8R Rbc2 Rb4 Nc5+ Ke5 Bb5 Qb7 Qc4 Rd6 Qd3 Qc7 Qe3+ Kd5 e5 Bf6 e4 d8N Be8 Nb7 Qd3+ Ke5 e3 Qd7 Ne4 Ke6 Qd4 Ke7 Rf2 Rcc4 Rb2 N7c5 Rcc2 Rd3 Qd2 Rcc3 Rc1 Rcc4 Qh2 Rd1 Rf2 Rc2 e2 Bg4 e1N Be3 Nd2 Bf3 Nd3 Rg7 Rg2 Rfg8 Re2 f8B Nf2 Rf7 Nfe4 Bg7 Qf4 Rcxc1+
B7/3Nn3/b1n1R2R/1Q3rr1/BB3bN1/KNqB1rrp/Rp3B2/1k1B2R1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 Kd2 Kd7 Kc2 e5 Kb2 b5 a4 h5 f4 h4 g4 e4 c6+ Kd6 g6 Kc5 d6 b3 c7 Kb4 f6 e3 a5 e2 d7 e1R f5 Nc6 f7 Nb8 a6 Bg7+ f6 Re2+ Nd2 Re7 f8N Re1 a7 Re8 g5 Na6 Bd3 Nh6 Qh5 Ng4 Ra2 Nh6 Ngf3 Rb8 a8B Nf5 Nh2 Ne7 Ng4 Bh6 g7 Rg8 g6 Bf4 f7 h3 Rg1 Bb7 c8B Qc7 d8R Qc5 Nd7 Ref8 Re8 Qc3+ Kb1 b2 Nb3 Bg5 Be3 Bf4 Be4 Kc4 Bf2 b4 Bc6 Kd3 Ba4 Nc5 Qe5 Ne6 Qa5 Ba6 Qb5+ Qc4 Bcb7 Nd4 Bf3 Ndc6 Bd1 Rd8 Nb6 Rd5 Nd7 Nf5 Re6 Nfe7 Nd2 Rg5 Nb3 Rh8 g8R Rhh5 g7 Rf5 Qb7 Rhg5 Rh8 Qc3 Rhh6 Rg8 Nh2 Rf8 g8B Rg3 Bh7 Rfg8 f8B R8g5 Ra3 Rf3 Ka2 b1R Ng4 Rg3 Be2+ Kc2 Qb5 Rf1 Nd2+ Kc1 Bed1 Rc5 Bd3 Rcf5 Bc5 Rff3 Bf2 Qe5 Kb3 Qc7 Ra2 Qc8 Kc4 b3 Kc3 b2 Kb3 Qc7 Ka3 Qa5 Ne4 Qd2 Nec5 Qc2 Nb3+ Kb1 Bf1 Qc3 Bfe2 Nc8 Bb4 N8e7 Bd3+
3RB3/3QKRR1/1N1p3p/N1R3p1/1r1B2nn/kqb4R/qR2N1B1/B3b1q1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 h4 cxd4 e4 Nf6 f4 Bb7 e5 Bf3 h5 Ng8 f6 Ra6 f5 Bd5 Qf3 Bf7 Qd1 Bg6 hxg6 Qc8 Qd3 Kd8 Qd1 Kc7 f7 Rf6 exf6 Kd6 Nc3 Qc7 Nb1 Qd8 Ke2 Kc5 Kd3 Kb4 Ke4 e5 Kd5 a4 c4 d3 c5 a3 g7 e4 c6 h6 b6 d2 b7 e3 c7 e2 c8N e1Q Ne2 a2 Na3 Qe7 Nb6 Qf2 Rh3 Rh7 Bg2 Qe8 Nac4 Rh8 Na5 Be7 f8R Qg6 f7 Qf6 Rd8 Qf1 f8R Qg1 Rf7 Qg6 f6 Na6 b8B Qe1 Be5 Qh1 Bd4 Qg1 b3 Qh7 Bcb2 Nc5 Rc1 Nb7 Ba1 Ka3 Rc5 Nd6 b4+ Qd3 b5 Nf5 Ke5 Nh4 Kd5 Bf8 Re7 Qf3+ Kd6 Qb3 f7 Nf6 g8B Ng4 Bh7 Bg7 f8R Qf2 Rf4 Re8 Ref7 Re4 Bg6 Be5+ Ke7 d6 Rg7 Qg1 Qc2 d1Q Be8 Qb1 Rff7 Qb2 Qc4 Bg3+ Qe6 Rf4 Qd7 Be1 Nc8 Qd2 b6 Qc2 b7 Qd2 Bdc3 Rb4 b8R Qdb2 Be5 Qc2 Bad4 a1B Nb6 Bac3 Rb7 Bcd2 Ba1 Qa2 Bed4 Bc3 Rbc7 Bcd2 Rc2 Bc3 Rb2 Qc4 Rcc8 Qcb3 Rc5
k4B2/N6R/B2Q3q/3r4/p1pp1RRN/qrq3B1/2N1n2K/N1NbrRN1 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 c5 b6 g5 c4 f4 b4 Na6 h3 Bh6 e3 Nc7 exf4 Nb5 cxb5 c4 h4 gxh4 f5 Bf4 Bd3 Bd6 Bf1 Bc5 dxc5 Bb7 Ke2 Ba6 Ke1 Bc8 g4 d5 f4 Kd7 Kf2 e5 Kg2 h5 b7 Kc7 b8B+ Kb7 f6 a5 b6 a4 c6+ Ka6 f7 h3+ Kh2 h4 f8N e4 g5 e3 b5+ Ka5 g6 e2 g7 e1Q f5 Qd2+ Bg2 Ne7 g8R Qc2 c7 Qe2 f6 Rh5 f7 Qe3 b7 Kb6 Ng6 Qe1 f8R Rg5 Nc3 Nf5 Nce2 Ra7 Ba3 Qc3 Nc1 Ne7 Rf4 Nc6 Bf8 Bg4 c8N+ Ka5 b6 Ka6 Be4 Ra8 Na7 Nd4 Bf5 Rh5 Bc8 Ne2 Bbd6 Qe7 b8N+ Ka5 b7 Kb6 Na6 Rb8 Be5 Qea3 Nb4 Rf5 Qd3 d4 Qg3 Bh5 Nc2 Bf3 Bed6 Rd5 Rb1+ Ka6 Na1 Bg4 Nc6 Bf3 Nb4+ Ka7 Nbc2 Bg4 Nf3 Bh5 Rf1 Bg4 Ng1 Bh5 Rh8 Bf3 Rh7 Bg4 Kh1 h2 Kg2 h1R Bc7 Ra8 b8N Bh5 Ba6 h3+ Kf2 h2 Kg2 Bg4 Nh4 Bh5 Rb6 Bg4 Rg6 Bh5 Nd7 Rb8 Rgg4 Ka8 Ne5 Rb3 Nc6 Bg6 N2b4 Bc2 Na7 Bd1 Nbc2 Rc5 Rf6 Rd5 Qd6 Qab2 R1f4 Qa3 Ngf3 Re1 Ng1 Qe3 Rf1 Qc3 R6f4 h1Q+ Kf2 Qhh3 Bb8 Qhd3 Kg2 Qg6 Kh2 Qh6 Rf6 Rg5 Qb4 Rc5 Bg3 Ra5 Qd6 Rd5 R6f4
R1b2bBn/2Nkr2r/1rbq1R2/K1B1n3/1QN2RBR/8/B1R2q2/q1R3qN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 b4 c5 g4 h5 e4 f5 d4 a5 Kd2 h4 Kc3 h3 e5 h2 g6 c4 b6 a4 d6 a3 e6 f3 d7+ Ke7 b7 f2 b5 f4 Kb4 a2 b6 c3 g5 c2 d5 f3 g7 Nf6 g8B Rh5 Ba3 c1Q Nh3 Qc2 Be2 f1Q Qd2 f2 Bg4 Bg7 d6+ Kf8 Bf7 Qe2 g6 f1R Nf2 Qe7 d8R+ Qe8 d7 Bh6 g7+ Ke7 g8B Qf5 Qb2 Qfc2 Nd2 Ra6 Rc1 Kd6 e7 a1Q Ba2 Ne4 Qb3 Qf7 Rf8 Qcd3 e8N+ Ke7 d8R Qd1 Rd4 Re1 Qc3 Ng5 Nc7 Nd7 b8R Qf1 b7 Qg1 Ra8 Qf4 b8R Nf7 Bb3 Nh8 Rf6 Bf8 Ba2 Rh7 Nc4 Rc6 Rb5 Rb6 Ka5+ Kd8 Re4 Qdd6 Bc5 Qf5 Rd4 Ree7 Rb2 Ne5 Qb4 Kd7 Rbc2 Qg2 Rhe1 h1B Re3 Qh2 Rh3 Qg1 Rh4 Bd5 Nh1 Bc6 Bh5 Qff1 Rdf4 Qff2 Bg4+
1K3n2/r1B3R1/b1Bq4/r1b1R3/2Q3R1/2RNrn1N/1n3n1q/bBRN1kBR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 a5 g4 e5+ d6 h5 d4 c6 b4 h3 b6 a4 g5 h2 b5 a3 g6 a2 b7 h4 d5 h3 b6 Qf6 g7 Qh6 f6 Ra4 f5 Be7 f7 Qh5 f8R Qh7 f6 Ra7 f7 Qh6 Be3 Bd8 d7 Qf6 d6 Qe7 Qe2 Nf6 g8B Nh7 Re8 Ng5 f8N Rh5 Bg2+ Nf3 Ne6 Qf8 Qb5 Be7 d8B Qf6 Qb4+ Kd3 Bh7+ e4+ Bf5 Rg5 Nc3 Bf8 Rb1 a1B Bc7 Rh5 Qb3 Qe7 Rc1 Nd7+ Kb4 c5+ Kb5 c4 Kc6 Qf6 b8R Ba6 Nd1+ c3 b7 Qd4 Qb4 c2 Rbc8 Be7 b8R Nf8 d7 Bc5 d8R Rg5 Rb1 c1N Rb7 Rh5 Bg6 Rf5 Bf2 e3 Qc4+ Kd2 Re7 e2 Nf4 e1R Re5 Nd3 Rc1 Nb2 Nd3 Re3 Rc3 Qf4 Rd4 Qh6 Rg4 Qf4 Bb6 Rh5 Kc7 Qd4 Kb8 Qd6+ Bc7 Rg5 Ne2 Rf5 Rf1 h1Q Nef4 h2 Nh3 Ke2 Rc1 Qg1 Bh1 Qg2 Bg1 Qg3 Bg2 h1N Bh7 Qh2 Rc3 Ng5 Bc6 Nf2 Bg6 Nfe6 Rh8 Nf3 Rh7 Nf8 Rg7 Na4 Rb1 Nb2 Rbc1 Bd4 Re8 Ra5 Re5 Bc5 Nb4+ Nfd3 Bf2 Nh7 Rh1 Nf8 Bg1 Ke1 Bge4 Nf2 Bf5 Na4 Bb1 Nb2 Nd3+ Ke2 R4g6 Kf1 Rg4
B1qBKRb1/n1B2NNr/1r2NBR1/5Q1R/kb6/r4q2/N2n1q2/1Bq2bB1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 h5 Ke4 e5 d4 c5 f4 a5 b4 h3 g4 h4 d6 a4 Kd5 a3 g5 h2 f6 h3 f5 a2 b6 c4 b5 c3 f7 c2 b7 e4 f6 e3 b6 e2 g6 e1R g7 Be7 f8N+ Ke8 d7+ Kf7 Bg5 c1Q Nc3 Re4 Qf3 Ra4 Nge2 Qe1 Ne6 Rf4 Bg2 Ba3 Ng3 Be7 Nf5 Qc7 d8B Ke8 f7+ Kd7 f8R Qf2 Bf6 Rh7 Rag1 a1Q Na2 Nc6 b8B Na7 b7 Bb4 Qd3 Qcc3 Bbc7 Qac1 b8B Ba6 Be4 Ra3 Rg6 Rf3 Ke5 Qc4 d5 Q4c2 Qf1 Rfb3 d6 Bc4 Bd3 Kc6 d7 Kb5 Be4 Be2 Ba8 Ka4 Bb6 Qc8 Bb8c7 Bc4 Bc5 Bd5 Kd6 Bg2 Qd3 Bf1 Qd5 Ne7 g8B Nec6 Qe4 Ne5 Nfg7 Nc4+ Ke7 Nd2 Ke8 Rb1 Qf5 Rb2 Rhg1 h1Q R1g5 h2 Rh5 Qhf3 B5b6 h1B Bbd4 Q2e2 Bg1 Qff2 Bf7 Bd5 Bg8 Rh8 Bh7 Qef3 Ng5 Bg8 Nf7 Qcb7 Bde7 Rbb3 d8N Rb1 Nde6 Qc8+ Bed8 Rb2 Rg3 Rb1 Qg5 Rb2 Bb1 Rh7 Qe5 Bd6 Rg2 Rb6 Rg6 Bb4 Qf5
R1n2B1b/1R2N1Bk/Brn4R/nb4r1/1n5N/1NnNKQ2/N2B3q/1b3N1n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 g4 Kg7 d4 e5 f4 h5 b4 c5 b6 a5 b5 a4 g5 h3 g6 a3 b7 h2 d6 h4 b6 h3 d5 c4 f6+ Kh6 g7 c3 f7 a2 d7 e4 d6 e3 f5 c2 f6 Na6 b8R Rh7 b7 Qc7 d8N Bd7 Nc6 Nb4 Ne5 Ra6 Nd3 Rb6 Bd2 Nc6 Nf3 Nge7 Nh4 c1N+ Kf3 Bf5 d7 Nc8 d8N Ne2 Ne6 Nc3 Nec5 Bd6 f8B Be5 f7 Qd6 Nf4 e2 Ke3 e1N Ba6 Nd3 Nb3 Ndb4 Nd3 Rh8 g8N+ Kh7 Ne7 Rg8 Ra8 Rg5 b8N Bh8 Bg7 Be4 f8B Qh6 Rg1 h1B Qf3 h2 Re1 Bg2 Rh1 Bf1 Ra7 Bf5 Rb7 Be2 Nd7 Qh5 Ndc1 Bb5 Ndc5 Bc2 N5d3 Qh6 Na3 Bb1 Nc4 Qh5 Nd6 Qh6 Ndf5 Qh5 Ng3 Qh6 Rg1 h1N Nf1 Qd6 Rg4 Qb8 Re4 Qh2 Re6 Bc2 Rb1 a1N Rb2 Bb1 Na2 Rg2 Rb8 Rg4 Ra8 Rg5 Nbc5 Nb3 Rf6 Nbd4 Nb3 Na5 Qg2 Rb8 Be1 Ba4 Qf3 Ndc6 Nbc1 Rb7 Bd2 Rbb5 Nc5 Nd3 Rb4 Rb8 N5b3 Rb7 Rb6 Ndb4 Nd3 Bb5 Rd6 Ra7 Rbb8 Rb7 Rg6 Rb6 Rb7 Na4 Re6 Nc3 Rh6#
1b1kRN2/RB1b2R1/2B2nN1/K3b2r/R1BQn3/R1N3n1/2r4b/nrB2R1q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 c5 Kd2 a5 Kc3 h5 g4 h4 b4 f3 e5 f4 b6 h3 b5 a4 g6 c4 g7 f2 g5 f3 e6 h2 d6 a3 Kb4 c3 d5 c2 g6 a2 b7 Nd7 b8R Be7 b6 Ra3 b7 Ngf6 g8B Nh5 g7 Ndf6 Bc4 f1N Qd4 f2 Ra8 Qd7 b8N Rb3+ Ka5 Rf3 Ra7 Nd2 Ne2 f1R Nbc3 Qc6 d7+ Kd8 Nf4 Ng3 Ng6 Rh5 Rg1 Rd1 Rf1 h1N Bf7 Bf8 g8R Nge4 Rg7 Bd6 Ba6 Re1 Bb7 Bh2 Bg8 Nhg3 e7+ Kc7 d8R Bd7 Rf8 Rf2 e8B Kd8 Rff7 Rg2 Re7 Rge2 Re5 Rd1 d6 Rg2 Bc4 Nb3+ Kb4 Rf2 Rea5 Qd5 Ra4 Re1 Rb1 Na1 Rb3 Qc6 Rba3 Rfe2 Bh6 c1B Bg5 Bf4 Ka5 Be5 Bf4 Rb1 Bc1 Bg4 Nd7 Rc2 Ndf8 Qd5+ Beb5 Bd7 Qe3 Qd1 B5c6 Qf3 Qd4 Qh1 Ka6 Nb3 Kb6 a1B Kb5 Bb2 Kb4 Na1 Ka5 Be6 d7 Bf5 Be3 Bc1 Bh6 Bcf4 Bg5 Bb8 Bh6 Bfe5 Bc1 Kc7 d8R+ Bd7 Re8 Rg2 Re6 Kd8 Ree7 Rc2 Re8+
B4Bk1/n2r1Q1R/1nBBb3/n1b1R1qb/N1r1b2q/1N1R4/K3Bn2/RN3B2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 f5 Kd2 Kf7 Kc3 c5 Kb3 h5 e4 a5 g4 c4+ Ka2 a4 b4 c3 b6 h4 d6 c2 e5 f3 b7 h3 d5 f4 g6+ Kg7 g5 f2 e6 a3 e7 h2 e8B f3 b5 Rh6 b6 Nd7 b8N Ngf6 b7 Ng8 Nc6 Nb8 d7 Ra5 d6 Ra7 Na5 Ne7 Ne2 Nec6 Nec3 Kg8 g7 Rh4 Na4 Rc4 Nb3 Qf6 d8R Be6 d7 Bc5 Be2 f1B Qd5 f2 Bf4 c1Q Bd6 Qff4 Bf8 Qh4 Qf5 Bg2 Qf7+ Kh7 Bf1 Be4 g8B+ Kh8 g6 Qcg5 Be2 f1B Rc8 Bfh3 d8R Nd7 b8B Nb6 Rd3 Bhg4 Bbd6 Bh5 Rc7 Rb7 Re7 Na7 Bc6 Rd7 Re1 h1N Bf1 B4d5 Re5 Be4 Qe8 Na8 Bf7 Bd1 g7+ Kh7 Bh5 Nb6 Ba8 Rc3 Bg4 Bc4 g8B+ Kh8 Qg6 Nf2 Bgd5 Bdf3 Bdc6 Be6 Qh5+ Kg8 Rh7 Be2 Bgh3 B2g4 Be2 Bgf3 Qe8 Bh5 Bhf1 Rc1 Nd2 Rc3 Rb1 Rc2+ Ka1 a2 Nd4 Rc4 Kb2 a1N Ka2 Nb3 Ra1 Qe7 Nb1 Na5 Nb3 Qeg5 Qf7+
3N3N/1b2kB2/Nr3rB1/3Q2qB/2bqpB2/2bn3n/1RK1RNNN/2n1R1q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 e5 Kd2 h5 b4 c5 g4 a5 f4 a4 f5 c4 f6 a3 g6 a2 g7 c3+ Kc2 e3 d6 e2 g5 e1Q f7+ Kd7 b6 e4 b5 h4 d5 h3 b7 h2 g6 Qf6 b6 Ra3 Bf4 Qe5 Be2 Qf5 Nf3 Qh4 Re1 h1B Nh2 Bg2 Bh5 Ra6 Re2 Nc6 b8N+ Kd8 b7 Nh6 g8B Qg3 d7 Qfg4 g7 Na5 Bh7 Bb4 g8B Qg5 f8N Nb3 Bgf7 Ke7 d8N Rb6 Nde6 Nc1 Bh7g6 Ng4 Na6 Bf1 b8R Rh6 Qd2 Nf2 d6+ Kf6 d7 Ncd3 d8N Qg1 Qd1 Ke7 Qd2 Ba5 Qd1 Nh3 Qd2 Rd6 Rb2 Bb7 Qd1 Rb6 Qd2 Nc5 Qd5 Qd4 Ng7 Nd3 Nf5+ Kf6 Nh4 Ke7 Ng2 Qg1 Bh7 Rhf6 Bh7g6 Qd4 Nd2 Bb4 Rae1 a1Q Nc4 Ba5 Nce3 Bb4 Kb3 c2 Nd1 c1N+ Kc2 Qg1 Nf2 Bc3 Nd7 Qa5 Ne5 Qb4 Be6 Qc4 Nef7 Qd4 Nh8 Ne5 Rd2 Bc4 Bef7 Ned3 Rde2
R1R2qq1/1K2Bb1p/r1RN2N1/k1NQR3/qb1bNn2/4B1N1/4n3/Nr1B3n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 g4 Kb6 f4 a5 d4 e5 b4 a4 g5 c4 f6 h3 g6 c3 g7 h2 d6 a3 Kd5 a2 f7 c2 f5 e4 f6 e3 d7 e2 Na3 e1B Be2 Bh4 Be3 c1Q Nc2 Bc5 f8N Ba6 f7 Bd6 Ne6 Bf2 f8N Nc6 Ng6 Nb8 Nc5 Qe8 d8B+ Bc7 Be7 Qd2 Rc1 Be5 Na1 Nh6 g8N Bd6 Nf6 Qd8 Nfe4 Kc7 b6+ Kc8 b5 Qb4 b7+ Kc7 Bg4 Kb6 Ne2 Ka5 b6 Ng8 Re1 h1N N2g3 Nc6 b8R Bb7 Be2 Ra6 Ra8 Qb3+ Rc4 Qf8 Rc8 Ba8 b7 Qa4 b8R Nf6+ Ke6 Nd5 Kd7 Bb7 Ra8 Nf4 d5 Nd4+ Rc6 Bg1 Qd3 Bf2 Bd1 Nde2 Qd4 Qf6 Qe5 Rb8 Qe6 Qf8 Qf5 Be5 d6 Bc3 Kc7 Bb4 d7 Qb3 Rc1 Qbg8 d8N Bc8 Nf7 Be6 Nfd6 Bf7 Rc3 Rb6 Qd5 Bg1 Nc2 a1Q Rc4 Qa4 Na1 Bd2 Rc2 Rb2 Rc4 Bb4 Kb7 Rb1 Rf1 Nd3 Rf5 Ndf4 Re5 Bf2 Bd2 Bd4 Be3 Qd8 Rc2 Qdf8 Rcc8 Be1+ Ncb3+ Kb4 R2c7 Bec3 Nbc5 Ka5+ Qb3 Bd2 Rc6 Bb4 Qd5
b4K2/2N1NB1R/b1rBR3/brN1q2b/3r4/4B2B/3p2Bn/RNbkB1nQ b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 h5 Ke4 e5 Kd5 a5 g4 h4 f4 a4 c4 a3 b4 h3 f6 Kg6 c5 h2 f7 e4 c6 d3 f5+ Kh7 g6+ Kg7 c7 Kf6 g7 e3 b6 Kg5 f6 Kf4 b7 a2 b5 d2 g5 e2 b6 Ke3 g6 e1B Bg2 Nc6 b8R Rh4 b7 Nh6 g8B Ng4 g7 Qe7 Nh3 Nd4 Nf2 Nf3 Nd3 Ra5+ Nc5 Ng1 Ra8 d6 b8N Rb5 Na6 Qe5+ Kc6 Be7 f8B d5 f7 Bg5 Bd6 d4 f8B d3 Bf7 Bb7+ Kd7 Rh6 Bde7 Rc6 c8B Bf4 Nc7 Ba6 Ke8 Bh6 Qa4 Ke2 g8N d1B Be3 Ba5 Qe4 Ke1 Bce6 Be2 Ra7 Kd1 Bh4 Bf4 Bd6 Bg5 Bef2 Bc1 Be3 d2 Ne7 Bf3 Be1 Be2 Na3 Bf3 Kf8 Be2 Rb1 a1R Bf5 Ra2 Ra1 Rab2 B5e6 R2b4 Nb1 Rd4 Qd5 Nh3 Rf1 h1B Rf6 Ng1 Bc8 Nh2 Bch3 Bh5 Re6 Bb7 Bf1 B1f3 Bfg2 Ba8 Qe4 Be2 Qf3 Rb2 Qf1 Ba6 Rb7 Rb5 Ra7 Ngf3 Qh1 Ng1 Bg6 Bc3 Ned5 Nf1 Ne8 Re4 Rh7 Rd4 Bf7 Nh2 Nec7 Ba5 Ne7
q3r3/N1kNNR2/B3r3/NpbN1b2/nN2r3/1b4bR/B1b1RQ2/n1K1B1R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 e5 g4 c5 d4 h5 Kd2 h4 f6 b6 f5 c4 a5 e4 a6 b3 g6 h3 a7 b2 g5 h2 d6 Qc7 g7 Ne7 g8N Rh7 d5 Nbc6 g6 Qb7 g7 Rh3 f7 Ng6 f6 Kd8 d7 Rb3 Ne7 Nge5 g8B Ng6 Qc2 Nb4 Nf3 Qa6 Ne5 Kc7 d8N Re3 Nd3 Ne5 Nb7 Nd7 Na5 Nc5 Nc3 b1B Rg1 h1B Ra2 Rb8 a8R Na4 Qb2 Nc2 Nb4 Bf5 d6+ Kd7 Ncd5 c3+ Kd1 Na1 Qf2 Re8 Bd2 c2+ Kc1 Qb7 Ra6 Qa8 Be1 Bf3 Ra3 Bd1 Be2 Kd8 d7 Ba2 Ra7 Bb3 Ba6 b5 Ra2 Re2 Rc7 e3 Rc3 Bh6 f8N Bf4 f7 Bg3 Nc8 Re6 Na7 Re8 Ng6 Re4 f8N Re6 Nb6 Re8 Rd3 Kc7 d8R Re6 Nfd7 Re4 Bc3 Re1 Rf8 e2 Rf7 Re6 Kd2 c1R Re3 Bdc2 Ne7 Bd6 Rf3 Bc5 Rfg3 Rf1 Rh3 Rce1 Qh4 Rf4 Qf2 Rfe4 Rb2 Rf1 Ra2 e1B+ Kc1 Bd3 Re2 Bdc2 Qg2 Bg3+ Be1 Rf3 Qf2 Rfe3 N6d5+ Kd6 Ng6 Re8 Re7 Rd4 Reh7 Ba2 Nc3 Kc7 Ne7 Bc4 Bd5 Re6 Rg7 Rde4 Rf7 B4d3 Bb3 Bc4 Ba2 B4b3 Ncd5+
1bQ1rk1b/1B1NNqRB/B1bBn1p1/2n5/b5b1/R2qN1K1/3BB3/1RN1r3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 d5 c4 f5 b4 a5 h4 a4 e4 a3 c5 a2 c6 d3 h6 d2 h7 d4 b6 f4 h5 f3 h6 d3 c7 Be6 c8B Bh3 b5 Qd4+ Kg3 f2 e6 Qc5 e7 Na6 e5 Ra7 b7 Qb4 b8B Qb2 b6 Rb7 Be2 f1B Nc3 Qb5 Qc2 d1B Nd5 d2 Ne3 Qb1 Bd6 Rd7 b7 Kf7 b8N Qb5 Bb7 Qd5 Qc8 Ba4 Rb1 d1Q Bd2 Rc7 Nd7 Bg4 Rh3 Nc5 Bba6 a1B e8B+ Ke6 Bg6 Ne7 Bgd3 Kf7 Bb7 Nc6 Bda6 Rg8 h8R Bg2 h7 Nd8 e6+ Ke8 e7 Qf7 Bf1 B2f3 Ne2 Bfc6 Nc1 Qdb3 Bfe2 Qd3 Rh4 Bf5 Rhb4 Bg4 R4b3 Bc3 Ba8 Rb7 Ra3 Rb4 B8b7 Rf4 Bc7 Rf1 Bf4 Re1 Bd6 Qa2 Bf4 Kf7 e8B+ Ke7 Bh5 Qf7 Bg6 Nde6 Be4 Be5 Bf5 Bb8 Bc7 Qg6 Bd6+ Kf7 Be4 Be7 Bf5 Re8 Rg8 Bg5 Bc7 Bf6 h8N+ Ke7 Bf4 Qh5 Bh7 Qf7 Bc7 Bb2 Bf4 B2e5 Ng6+ Kd6 Ne7 g6 Nd5 Qf6 Nc7 Ke7 Nd5+ Kf7 Ne7 Qff5 Nb6 Bh8 Rg7+ Kf8 Bd6 Qf7 Nd7+
1R1RRK1Q/q2R4/B3bR1B/B4b1r/R2nr3/1qNk1pNN/2nN4/r1b2r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 e4+ Kb4 h4 g5 d6 a5 h6 f5 b6 f3 d5 c4 h5 g4 b7 f4 h7 f2 h6 c3 d7 g3 Ke6 a4 Kf7 a3 d6 f3 e5 a2 e6 g2 e7 c2 e8N Ra4 Ne2 Kc4 b4 g1Q b5 Qg3 b6 Rb4 Nd2+ Kd3 Nc3+ Kd4 Nf6 Qh2 Nh5 Qe5 Ng3 Ne7 Ba6 Rg8 h8R f1B h7 Qa5 Rh6 Nec6 Rf6 Bd3 Qh1 Bh6 Qh4+ Rg4 Re8 Bf5 h8N Re4 Ng6 Rb5 Nf4 Nb4 Nh3 N8c6 b8R Kd3 b7 Qdb6 d8R Nd4 d7 Qa3 Ra8 Qa7 b8R Bf4 Qh8 Qb3+ Kg7 Bg5 Rb1 a1R Kf8 Be3 Rb2 Be6 Ra2 Bf5 Ra4 Bg5 Bb2 c1R Re7 Rd1 Bc1 Nbc2 Rde8 Be3 d8B Bce6 Rd7 Rf1 Ba5 Bg6 Nc4 Rh5 Rbd8 Bgf5 Rab8 Bf2 Bf4 Be3 Bh6 Bc1 Nd2+
2B1K3/b7/1RN1pb2/bk3b2/1nnQRR2/3qR1RR/1NnN1NrB/r1Bq4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Ke4 c5 Ke5 h5 g4 a4 b4 a3 d4 e6 f4 c4 b6 a2 b7 h3 g5 h2 g6 h4 b5 c3 b6 c2 g7 h3 d6 Kc6 d5+ Kc5 d7 Be7 d6 Ra3 f6 Bf8 f5 Ra7 f7 Qe7 d8R Rh7 f6 Ra4 d7 Nh6 g8R Rh4 Nd2 Rg7 Ba6 Rg2 Rg3 Ra4 Re3 Bg7 f8N Nf5 Ng6 Nd4 Rg8 Qd8 Nf4 Bh6 f7 Nbc6+ Ke4 Bf8 b8N Ne5 b7 Nc4 Nc6 Bh6 b8B Bb7 f8R Ra3 Bb2 c1B Rgg3 Nc2 Nd3+ Kb6 Rf4 Bg7 Ndf3 Bc3 Nd2 Ba5 Qg4 Ba8 Bc8 Kb5 Qg7 Bb7 Qd4 Ra4 Ba3 Bb2 Rae1 a1B Be5 Bbc3 Nb2 Bb6 Bc7 Bca5 Bcd6 Ba7 Be5 Qb6 d8R Qa6 Rd6 Ba8 Nd3 B1c3 Bc1 Ra1 Nb2 Bb7 Kf3 Ba8 Kg4 Bb7 Kh5 Ba8 Ne7 Be4 Nc6 Bf5 Ree4 Bd8 R1e3 Bf6 Kh6 Qa3 Kh5 Ba5 Kh6 Qd3 Kh5 Bg4+ Kg6 Bf5+ Kf7 Qc3 Ke8 Qa3 Ngf3 Qd3 Rd1 h1Q Ng5 h2 Nh3 Qe1 Nf2 h1N Rh3 Qee2 Re1 Qg4 Reg3 Qd1 R1e3 Nb4 Rgg4 Ng3 Rg7 Nf1 Rgg3 Rg1 Ne7 Rg2 Ra6 B5b6 Nc6 Ba5 Re2 Nfe3 Bb8 Nec2 R2e3 Q1e2 Rg8 Bh7 Rfh4 Rg5 Bh2 Rg2 Rgg3 Qd1 Rhf4 Bf5 Rb6+
5b2/1q2BN1Q/1b2p1NR/B5N1/K2kR2N/6nn/1bnr1BbN/2N1nBRr b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 h5 Kd2 a5 Kc3 c5 Kb3 c4+ Ka4 h3 f4 h2 b6 h4 g5 h3 b5 c3 g6 e6 f6 c2 f5 Be7 g7 Rh4 b7 Rh5 b6 Bf8 f7 Qe7 f6 Rh7 Qd3 Rh8 Be3 c1B Ne2 Rh4 Bf2 Nd7 b8R Bf4 b7 Rh7 Nc1 Qd8 Nc3 Ne7 g8N Nf5 Nh6 Ne5 Ng4 Qb6 Ne4+ Kd7 d6 Kc6 d7 Kd5 d8N Nf3 Ng5 Ne3 Rg1 h1N Ra3 Ne1 Nh2 N3c2 Qg6 Ra7 Re3 Ng3 Qd3 Rh4 Qh7 Bc7 Ra8 Qb1 b8B Bb6 Bd6 Rd7 Be7 Bb7 Rc8 Qb2 Rcc3 Ba8 Rcd3 Kc4 d5 Rd6 Ra3+ Kd4 Ra1 Rd7 d6 Bg2 Rb1 Ba7 Ra1 Qb7 Raa3 Bb6 Ra2 Bh6 f8N Bg7 Ng6 Bf8 f7 Rh6 Ng4 h2 Nh4 h1N Nh2 Rh5 Rb2 Rh6 Rb5 Rh5 Rf5 Rh6 Rf6 Rh5 Kb5 a4 Rh6 a3 Ka4 a2 Bd3 a1B Bf1 Bg7 f8N Bb2 Nfg6 Bf8 Ndf7 Nf3 Be1 Nf2 Ba5 Rd8 d7 Nh3 Be1 Qe4 Bf2 Nfe1 Nd3 Qb7 Nc1 Rc8 d8B Rc3 Bb4 Rd3 Ba5 Rd2 Be7 Nf4 N4f3+ Kd5 Ng4 Rh1 Ngh2 Nh3 Nfh4 Kd4 Re4+
1n3BnN/2kn2r1/1pR2RnB/2R2B2/r1RNK2N/8/bbNqR3/2bb1QR1 b - - 0 1 illegal: No possible last move, all moves rejected
1K5R/1b1Brkr1/QN1Bq2B/1nR1n1N1/2pq1p2/R2N3N/n2NR2b/5b1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 g5 Ke4 f5+ Ke5 c5 b4 g4 e4 a4 h4 g3 d4 a3 h6 c4 h5 f3 h7 f2 h6 a2 d6 g2 d7+ Ke7 b6 Ra7 b7 Ra8 d5 Qe8 d8N Qh5 b5 Bd7 b6 Ra5 Ne2 g1Q Ng3 Na6 b8B Qh4 b7 Qgh2 Bh3 f1B Ne6 Bc6 Nc5 Bb5 d6+ Kf7 d7 Bc6 d8N+ Ke8 Ne6 Qf2 Qd6 Qd8 Nf4 Ra4 Ncd3 Qh4 Qa3 Bg7+ Kd6 Nc7 e5 Be4 e6 Qe2 e7 Rb4 Qa6 Qb2 Rg1 Qg5 Nh1 Nf6 Bd2 Qg6 Rg5 Rg8 h8N Rb5 h7 Re5 Nf7 Bf3 h8R Ng4+ Ne6 Bf6 Nef4 Bd5 Be3 Qd4 Nd2 Qh6 Ba7 Qg6 b8N Re4 Nd7 Bb7+ Nd5 Qh6 Bc5 Qg6 Nb6 Re5 Rb1 a1N Rb3 Nc2 Ra3 Nb4 Rgh5 Na2 Bh6 Bc8 Kc6 Nb5 N5f4 Re2 Bd6 Be5 Bg2 Re1 Nh3 Bh2 Rg5 f4 Rc5 Qgf6 Nfg5 Re5 Be4 Qf7 Bf5 Qf6 Ngf3 Kf7 e8R Bb7+ Kd7 Rg7 Re6 Nbc3 Kc7 Nb5+ Kb8 Re2 Ree5 Qg6 Bd7 Re3 Red5 Re7 Re5 Qe6 Re2 Ne5 Nfg5+
3r1r1k/1N1RBbRB/1rN2B1p/p1R4R/2nK1b2/Q4b2/1nR2Bq1/R1N4r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 g4 e5 f4 c5 b4 a5 f6+ Kf7 g5 h6 f5 h3 d6 h2 b6 Be7 d7 Kf8 b5 Kf7 g6+ Kf8 f7 Kg7 f8B+ Kf6 b7 Ra6 g7 Rc6 b6 Rh7 Na3 Re6 Qb3 Kf7 f6 Rh8 Nc4 Qe8 d8B Bd6 Ne2 Na6 b8N Ne7 g8R Qc6 b7 Nd5 Bfe7 Nb6 Qa3 Qg2 Nc6 e4+ Kc3 e3 b8R Bc7 d4 Bf4 d5 Nb4 d6 Nd3 d7 Nb2 Ra8 Ba6 Rc8 Rd6 Rg5 Rf8 Re5 Kg8 f7+ Kg7 Rg1 h1B Rh5 Rg6 Nd6 c4 Nb7 Kh8 Kd4 c3 Bd2 c2 Nc1 e2 Be3 e1R Bf2 Rd1+ Bd3 N6c4 Rc5 Rfg8 f8R Rd2 Rf7 Rf8 Rg7 Bb5 Rh5 Ba4 Bf6 Bb3 Bde7 Ba2 d8R Rd1 Ne2 c1R Rd7 Rb1 Nc1 Bb3 Be5 Rf6 Rcc7 Rd8 Rc8 Rff8 B5f6 Re1 Bh7 Re6 Ne5 Rb6 Nc6 Ne3 Nd3 Qf3 Nce5 Bf7 Rgc1 Nec4 Rc2 Qg3 Rc7 Bf3 Rc5 Qg2 Nc6 Rh1 Nc1
1B1rNr2/rBBb4/nbNprb2/1B1RN2N/2B1Bq2/1n3pQK/5k2/1R1R4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg2 Ke6 c4 Kf5 b4 Ke4 h4 f5 h6 g5 c5 a5 c6 g4 h7 a4 e6 a3 e7 a2 e8B f4 b6 d3 h5 d2 h6 Ke3 b7 g3 b5 f3+ Kh3 g2 c7 Qe7 b6 Na6 b8B Qg7 b7 Qe5 Na3 Bb4 Nc4+ Kf2 e4 Qd5 e5 Bd6 e6 Nc5 e7 Qd3 Ne5 Ke3 Rb1 a1B Qe1+ Qe2 Qg3 Qc4 Ne2 g1R Nf4 Na4 Nh5 Rg2 Bg6 Nf6 e8B Bc5 Be4 Rf8 h8N Ra7 h7 Nd5 Nhf7 Re2 h8R Bb6 Nd6 Nc5 Rg8 Nb3 Rg5 Qb4 Rg1 Re1 Bc4 Qa4 Bb2 d1R Bc3 Re2 Ba5 Nb4 Rf5 Rd5 Rgd1 Bc3 Nd3 Rd4 Rd5 Na6 Ne5 Qb4 Bf7 Rdd2 Bb5 Re1 Ne8 Qd4 Bc2 Qf4 Be4 Bcd4 Nc6 Bf6 Ne5 d6+ Be6 Bd7 c8B Rde2 Nc6 Ra2 Ne5 Bd4 Bd8 Bb6 Bdc7 Ra8 Ba7 Ra3 b8N Ra1 Nbc6 Ra5 Qg5 Kf2 Bb7 Rd8 Qg4 Nac5 Bab8 Ra7 Qg5 Na6 Qg3+ Ke3 Rc5 Nd4 Nf7 Rg8 B4f5 Rf8 Bec4 Nb3 Rcd5 Re2 Qg4 Kf2 Bh7 Re7 Be4 Re6 Nfe5 Nbc5 Qg5 Nb3 Qg3+
R2n4/K2RbbR1/1p1n1R1B/p5R1/b3rrNR/2QkBn2/B3Nnq1/1B3N2 b - - 0 1 illegal: No possible last move
1Q4R1/R5nk/pB1r4/1N3nRB/K1n2n2/3rpNq1/b3NbRR/B3BR1b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kg7 f4 h5 d4 e5 Kd2 c5 Kc2 h3 Kb3 h4 b6 c4+ Ka4 e4 b5 h2 d6 h3 f6+ Kh6 g5+ Kh7 f7 e3 b7 c3 d7 c2 f5 Ne7 d5 Bh6 f8B Qc7 d8N Nbc6 b8R Nd4 b6 Ng6 f6 Nb3 d6 Bg4 f7 Bf3 d7 Qc4+ Bb4 Qh4 f8R Rg8 b7 Bh5 Bb2 c1N Be2 Qg3 Nf7 Nd2 d8B Bg7 Bb6 Bc3 Qb3 Nd3 Ne5 Ngf4 Na3 Rg6 Nb5 Ne6 Rff1 Ng7 Nef3 Nc4 Rg8 Rd6 b8R Bf7 Rb7 a6 Ra7 Be5 Ra2 Nf4 Ba1 Rad8 Be1 Rd3 Bd1 R8d6 Ne2 Be6 Rhg1 h1N Rg2 h2 Qb2 Qh3 Qb4 Ng3 Rc2 h1B g6+ Kh6 Ra2 N3f5 Qb3 Qg3 Rd2 Ngh5 g7 Kh7 Qb2 Bf6 Qe5 Bf7 Qe8 Bh4 Qb8 Na3 Rh2 Ba2 Rc2 Nh6 Rc5 Nc4 Rg5 Nf5 Rc8 Qg2 g8R+ Nhg7 Rc5 Qh3 Rgg2 Bf2 Rd5 Ne7 Rdg5 Nef5 Rg6 Qh4 R6g5 Rb3 Ned4 Ne6 Ne5 Rd3 Bh5 Nf4 Ne2 Qg3 Nf3
1NkRb1q1/2b1R1b1/1B1r4/NbQ3B1/1r1NB3/B1K2np1/Bp2BqRn/4N3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 e4 g5 a4 b5 h4 f5 h6 c4 e6+ Kc7 d6+ Kb7 a5 g4 a6+ Ka7 d7 g3 h5 f4 d5 b3 h7 b4 d6 f3 e7 b2 e8R f2 e5 b3 h6 Kb6 a7 Kb7 e6 Qe7 d8N+ Kb6 d7 Kc7 Na3 b1B Nb5+ Kb6 Rh2 Bc2 Ba3 b2 Nf3 Qh4 e7 Bb3 Nbd4 Kc7 Qc2 Qf4+ Kc3 Bg7 Nb7 Qf8 d8N Nd7 Nc6 Ne5 Rd1 Rb8 a8B Bd7 Ne1 Nf3 Nba5 Ba4 Rg2 Rb4 Be2 f1Q Nb8 Bab5 Be4 Nf6 Rd3 Rg8 h8B Qf2 h7 Ng4 Rd2 Ngh2 Rd1 Be5 Bf6 Rg6 h8B Qg8 Bg5 Rd6 Bhf6 Bdc6 Be3 Bf4 Bg5 Bd7 Rf8 Bdc6 e8B Kc8 Bf7+ Be8 Bfd5 Be5 Rf7 Bg7 Qc1 Bbc6 Re7 Bb5 Kc2 c3 Ba2 Rc4 Kd3 c2 Rd2 Ra4+ Kc3 Rb4 Rd1 Ng1 Kd2 Re6 Ndc6 Rf6 Bb6 Ngf3+ Kc3 Qf1 Qe3 c1B Rdd7 Qf2 Qd4 Bf4 Qc5 Bc7 Nd4 Rd6 Rd8+
3q1Bn1/r1NNrN1R/b2Rnn1R/bB3p2/K1R1pN1Q/R2q3B/nk5R/8 b - - 0 1 illegal: No proof kernel
2Bq1BNq/8/1R3q1r/KpNRbbNr/5N2/1p2Rqk1/Q1NN4/1nnB1B2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 Kd2 b5 g6+ Kf6 d6 b3 Kc3 c4 Kb4 h4 a5 e4 d5 h3 g5+ Kg7 a6 h2 a7 c3 Ne2 e3 Ra6 c2 Ba3 c1Q Rb6 Rh3 f6+ Kh8 g7+ Kh7 g6+ Kh6 f5 Kh5 f7 Kg4 f6 Rg3 Nf4+ e2 Qd2 e1Q Ka5 Qdc7 d7 Qe7 d8N Re3 d6 Rc3 d7 Rh3 Nc6 Qb2 d8R Rh5 Nd4 Ba6 Rd5 Qe4 Nc2 Ne7 g8B Bg7 f8N Kg3 f7 Qd8 N8e6 Nd7 f8N Qf6 Nh7 Qf3 Nc5 Bc8 Be6 Ne5 Ng5 Nd3 Bb4 Bh8 g7 Nc1 g8N Rb8 Bg4 Bf5 a8B Rc8 Qe2 Rc6 Bb7 Bg7 Bc8 Rd6 Rd3 Nd5 Nd2 Nc3 Rd5 Nb1 Ba3 Qd4 Bb4 Rdh6 Ba3 Q4f6 Rg1+ Kh4 Rg3 h1Q Qg2 Qf7 Qf2 Be5 Qe2 Qff6 Qf2 Qfg2 Bd1 Qhh3 Qe2 Qf2 Re3 Qff3 Na4 Kg4 Bf8 Kg3 Nc5 Qh2 Qc4 Qh1 Qa4 Qh4 Qa2 Qh8 Ngh3 Q4f6 Ng5
1b4Bq/1r2n2p/1N1NKR2/B1k2BB1/2n1RN2/2rBpnB1/5Q1N/2Rq2nb b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kf4 c5 g4 a5 d4 a4 b4 c4 b6 a3 b7 e3 b5 e2 g6 e1Q g5 e6 b6 c3 g7 c2 g6 a2 Qf3 Ra3 Nh3 Qd1 Bd3 Qe2 Nd2 Nf6 g8B Ne8 g7 Qd1 Nf1 Ra5 Nh2 Qe2 Re1 Nc6 b8N Nb4 b7 Be7 Nd7 e5+ Kf5 e4 b8B+ Qc7 Bg5 c1N Nf4 Bd8 Be6 Qd1 g8B Ra7 Nb6 Ne2 Rc1 a1N Qe3 Nc3 f3 Nb3 Qf2 Nc6 Re2 Bf6 Re3 Ne2 Bd7 Ke7 d6+ Kd8 d5 Ne7+ Ke6 Ng1 Re2 Bb7 Bc8 Bg7 d7 Qc3 Be5 Nd6 Re1 Kc7 d8N Nd2 Nf7 Ba6 Bd7 Kb7 Re3 N6c4 d6 Qb2 Bc8+ Kc6 d7 Bf8 d8B Kc5 Nd6 Rb7 Bc7 Bb5 Bc3 Ba4 Ba5 Bc6 Ng6 Qc3 Nf7 Ne5 f4 Bg7 f5 Ng4 f6 Kd4 Kd6 Ne5 Bf5 Qb2 Ke6 Qa1 Rh3+ e3 Bd6 Bh1 Rh4+ Ng4 Bg3 Ndf3 Nd8 Qc3 f7 Be5 f8R Bb8 Nf7 Qb2 Nd6 Qc3 Rh5 Nge5 Bf7 Qb2 Rh6 Qc3 Rc8 Rd8 Rc5 Rc8 Bg8 Qa1 R5c2 Rc4 Ra2 Kc5 Ra4 Rc2 Rah4 Nc4 Re4 Qh8 Nf4 Rc3 Rf6
2NB1B2/KR1b1q2/1B2r2R/2Rrb3/nR1R1p2/Nb5k/1qB2pnp/2NR2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 c4 Ke6 b4 Kf5 g4+ Ke6 e4 h5 b6 a5 e5 d5 c6 f5 g6 a4 g7 h4 c5 a3 c7 a2 g5 d4 b5 d3 g6 d2 c6 f3 Ke3 h3 b7 f2 b6 Ra7 Ba3 Na6 b8B Qd5 b7 Nh6 g8R Qd7 g7 Qe8 Kd4 f4 Ne2 Kf5 e6 Kg4 e7 Bf5 c8N Be6 c7 Rh7 Nc1+ Kh4 Bd3 Bb3 Bc2 Nf7 Qg1 Nb4 Kc5 d1B Kb6 Ra5 Ba7 Ng5 b8B Qf7 e8R Ne6 Rd8 Rh6 Rd4 Bg4 Rh8 h2 g8R Bd6 Rg7 Rah5 Kb7 Nd3 Bb6 Kh3 Ka7 Rg6 Rh6 Be5 Bf8 Ne1 Na3 Ng2 Rb1 a1Q Rgh7 Nc5 Rb2 Ba2 Rbb4 Na4 Nd6 Qb3 c8R Bh8 Rc5 Qab2 Rb7 Bd7 Qf1 Qf7 Nc8 Bb3 B8c7 Re6 Bd8 Bf6 Qc4 Bh8 Rhd1 Bg7 Qf1 Bf6 Rg6 Rd5 Qg1 Be5 Rh6+
2R2qr1/3K1kp1/qN2B3/r2Rp3/3NBBbn/1B2npN1/2BBQr2/2bR2R1 b - - 0 1 illegal: No proof kernel
2q4Q/1NbNBp1R/1N1R2p1/4rbR1/Nn2kB1n/R2N1p2/q1B1N3/1r1b2K1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 h4 Ke6 e4 Ke5 b4 a5 c4 d5 h6 f3 c6 a4 c5 g6 c7 d4 c6 a3 b6 d3 b5 d2 b7 a2 h7 Be7 b6 Nh6 h5 Ra6 Bd3 Bd6 Nc3 Qe7 Nge2 Ra4 Kg1 Qf6 Bc2 Ng4 h6 Bd7 c8N Ne3 c7 Ra3 Rh5+ Qf5 Na4 Nc4 Rg5 Rd8 h8B+ Ke6 e5 Kd5 e6 Rc3 e7 Nc6 e8R Nd4 b8N Ne3 b7 Rc6 h7 Be5 Na6 Qd3 b8N Qc4 Bf6 Bh3 h8R Ndf5 Re6 Rc5 Nd6 Nh4 c8N Bf5 Nb7 Bc7 Nd7 Ra5 Qf1 d1B Be7 Re8 Qe1 Rb5 Qc3 Rb1 N6c5 Qa6 Rh7 Qc6 Bd3 Nc2 Qh8 Nb4 Bc2 Qa6 Rb6 Qc4 Nd3 Ke4 Rd6 Qc6 Bf6 Re5 Bf4 Qa6 Be7 Qa8 Ncb6 Qc8 Rg2 Rb3 Rc1 a1Q Rg5 Qa2 Ra1 Rb1 Bc1 Qc4 Ra3 Qa2 Bf4
2r1BR1R/r1QqQ1B1/kb2n1rR/1R2NB2/2KR1n2/b6r/3bR3/NB1b4 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kd3 c5 g4 Kc7 f4 Kb6 d6 h5 f6 e5 f7 e4+ Kc4 h4 d4 e3 d5 b3 d7 e2 f5 e1B f6 b2 d6 h3 g6 h2 g7 Rh4 Na3 b1R Bb2 Be7 f8Q Qc7 d8R Rc1+ Qc2 Rh5 d7 Nc6 f7 Ka7 b6+ Ka6 b7 Rf5 b8R Bb4 g5 Nf6 g8B Qa7 g6 Rf3 g7 Bd2 Bh3 Nd5 Bf5 Bd6 Bgh7 Bc7 g8B Nf4 Rb5 Rh3 Bg7 Nd4 Qe7 Nde6 f8R Bb6 Nf3 Bb7 Ne5 Bf3 Bhg6 Bd1 Be8 Rh6 Bgf7 Rg6 Ra2 Qc7 Bg8 Ra7 Bh7 Qb7 Ra8 Qc8 d8R Qd7 Re1 h1R Re2 Rh2 Qc3 Rh3 Nc2+ Kb7 Rab2 Ka6 Na1 Rc2 Kb3 c4+ Kb4 Qc8 Rd4 Qd7 Rb1 Bc1 Qg3 c3 Kc4 Ba3 R1b2 Rc1 Rbd2 c2 Rh2 Rb1 Rde2 c1B Rc8 Bd2 Qc3 Rhg3 Rh6 Rh3 Rh8 Rc1 Bb1 Rgg3 Bhf5 Rc2 Bh5 Rc1 Rcf8 Rg5 Be8 Rg6 Qc2 Rh5 Kb3 Rh3+ Re3 Be2 Qc6 Rc5 Qcd6 Rc8 Qc7 Bg4 Kc4 Bd1 Re2
2Nq1q2/B1n2Rb1/n4bb1/3QB1rR/3nRK1k/6n1/bB1R3B/2QNB2B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 g4 Kg5 b4 a5 d4+ Kf6 b6 e5 g5+ Kg7 b5 h5 f6+ Kg6 f7 c5 d6 e4+ Kf4 e3 d5 c4 d7 h3 d6 a4 b7 e2 b6 e1B Nd2 h4 Ne4 a3 Bb2 c3 Bg2 a2 Qc1 Kh5 g6 h2 g7 c2 Nh3 Ne7 g8Q Na6 b8B Ba5 b7 Nf5 Ba7 Qe7 d8R Be6 b8B Ne3 d7 Bg7 f8B Bac3 Nd6 Bcf6 Nc8 Bd5 Re1 h1N B8e5 Ng3 Bh1 Be4 f3 Bg6 Nf2 h3 Qd5 h2 Nd1 Kh4 Rb1 Qf7 Bb4 a1Q Rf8 Qe7 d8R Rh5 Rf7 Qa3 Rh8 Qd6 Rh6 Qd8 Re2 Rb8 Be1 Rb5 Rd2 Qaf8 Ra1 Ra5 Ra4 Rc5 Re4 Rb5 Qa1 c1N Qb1 Nb3 Qc2 Nf5 Qc1 Nfd4 Ke3+ Kh3 f4 Nbc5 f5 Nc7 Kf4 N5a6 Ree2 Bh8 Re4 Bfg7 f6 Kh4 Re7 Rc5 f7 Bf6 Rd7 Bhg7 Re7 Qg8 f8B Ra5 Bf3 h1B Rf7 Rc5 Bfd6 Qgf8 Nf2 Bg2 Nd1 Bf1 Bg2 Bc4 Bh1 Rb5 Bdc5 Ba2 Bcb6 Nc2 Bg1 Nd4 Bh2 Qh8 Qd7 Be7 Bd6 Rg5 Be5 Bef6 Qd5 Qhf8 Rxh5+
BK1Q1nb1/1QnB3Q/4r3/2qbRQ1b/4Q3/1Br1Q2p/1k2r1R1/1n1NN2B b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bg4 b3 Bc8 h4 Ne7 g4 Rg8 Ba3 Nd7 Bc5 Ba6 Be3 Bc8 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Nh3 Rh8 Ng1 Ng8 Kf2 Kd7 Kf3 a5 Ke4 c5 d4 h5 e6+ Kd6 g7 f3 e7 f2 e8B f6 b4 c4 g6 h4 b6 h3 b5 c3 b7 c2 b6 c1N Qa4 Na6 b8Q+ Qc7 b7 Nh6 g8Q Ng4 g7 Be6 Nf3 Rh7 Bd7 Rh5 Bg2 f1B Ra2 Ra7 Ne1 Rh4 Nd2 Bf7 Qh7 Bh5 g8B Be8 Qc8 Qc5 b8Q+ Nc7 Qbb7 f5+ Kf4 Bf7 e4 Ra6 Rb2 Be2 e5+ Ke7 e6 Kd6 e7 Nb3 Qab4 a4 e8B a3 Rf1 a2 Bh1 a1R Ne4+ Ke7 Rg1 R1a2 Rg2 Nd2 Nf2 Kf6 d6 Nb1 d5 Be6 Qe4 Ne5+ Rg4 Bd1 Rb5 Re2 Bg6 Rh6 Rg2 Ra3 Bh5 Rc3 Bf3 Nf7 Qe8 Nd8 Qe3 Bf7 Q8e4 Bb3 Be6 Ba2 d7 Bh5 d6 Bd5 Bgf7 Bc6 Bb3 Bd5 Be8 Nde6+ Kg3 Nf8 Kf4 Rg6 Ra5 Rg7 d8Q+ Re7 Qd7 Re6 Qdb5 Bf7 d7 Bg8 Kg3 f4+ Kg4 Re5 d8Q+ Ke6 Bd7+ Kd6 Qeg6+ Re6 Be4 f3 Kf4 Qb4 Qbd3 Qb6 Qf5 Qc5 Nd1 f2 Qc2 f1B Nf2 Bc4 Bec6 Bd5 Qce4 Rb2 Rb5 Be2 Ra5 Bh5 Rb5 Bc4 Ra5 Re2 Rb5 Qa7 Re5 Bd5 Qbb6 Bc4 Ra5 Nb5 Qa6 Qd4 Ba8+ Qb6 Qab7 Qd4 Qg4 Kc5 Qgf5+ Kb4 Rg6 Qb6 Rg2 Nc7 Rb5+ Ka3 Rc5 Kb2 Rb5 Rf6 Ke5 Nce6 Rd5 Qd4+ Kd6 Qe5+ Kc6 Rg6 Kb6 Nc7+ Ka7 Re6 Kb8 Qd4 Re5 Bd5 Qeg5 Qb6 Qge3 Qc5 Nd1+
3r4/R1k2p2/2r3Q1/NQNnrR1K/2RR4/1bb2RR1/2n2n2/1QQBqBq1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 Nh6 c4 Ke7 cxd5 Ke8 Ba3 Qf6 axb5 Qd6 b6 Ng8 b5 Qd8 Bb4 axb4 Kf2 Kd7 Kf3 c5 Kg4 g5 e4 c4 d4 b3 h4 c3 e6+ Kd6 b7 b2 h6 c2 h7 c1N e5+ Kc7 h5 Ra2 h6 Bd6 Rh3 Nb3 Rf3 Bf8 d6+ Kb6 d7 Na5 e7 Ra3 e8B Nb3 d5 Nc5 e6 Rb3 e7 Nd3 d6 Qc7 Ne2 Qc3 Kh5 g4 d8R g3 d7 g2 Ng3 g1Q Ra7 Qc6 Qc1 Qd6 Ne4 Qgd4 Nbd2 b1R Nc4+ Kc7 b6+ Kc6 Na5+ Kd5 Nc5 Nc6 b8R R3b2 b7 Rb5 Rba8 Qg7 b8Q Qdg3 Qb6 Bb7 Rac8 Ncb4 Qg6 Nf2 Rc6 Rb2 Rda8 Nc2 d8R+ Ke5 Rd4 Rb6 Rc7 Bd5 Ba4 Bb3 e8Q+ Ne7 Qb5 Nd5 Rac8 Rg8 h8Q Rc6 h7 Be7 Rcb7 Rd8 Qe8 Ra2 h8R Ra3 Qg8 Bf6 Q8h7 Kd6 Rg8 Qe5+ Rf5 Qe1 Re7 Ra1 Re3 Rb1 Ref3 Ra1 Qgh6 Qg1 Rgg3 Ra2 Q6g6 Ra1 Qa3 Rd1 Qa1 Rd3 Qb1 Re3 Qhh6 Re7 Qhc1 Re5 Nd3 Ra6 Rcc4 Rc6 Ra6 Kd7 Nc5+ Kc7 Ra7+ Kc8 Nab7 Na3 Rff4 Ree8 Qa1 Bd1+ Rff3 Kc7 Rd3 Bc3 Qab1 Re5 Rdd4 Qe3 Bc2 Qe1 Bcd3 Bb3 Bde2 Nc2 Bd1 Kb8 Na5+ Kc8 Ra6 Kc7 Ra7+
2Rn1Nr1/4p3/1r1BR1Q1/QqBRr1Q1/N2KR3/R2R1b2/n1q1b1Q1/3b1k2 b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 g6 a4 Bb7 axb5 Bc8 f6 Kd7 f7 Bg7 Nh3 Bh6 Ng1 Bf8 g4 Bg7 h4 Bb7 f4 Bf6 f5 Ba6 g5 Qc8 Bd3 Bc3 f6 Qd8 Bc2 Be5 Bf5+ gxf5 g6 Bf4 Ra3 Be3 Ra1 Bg5 hxg5 Bc8 Kf2 Kd6 Ke3 Ke5 f8R a5 d4+ Kd6 b4 c5 b6 h5 f7 h4 b5 a4 g7 h3 g6 c4 b7 h2 b6 a3 Qe2 c3 Qg2 a2 Ne2 c2 Rd1 h1B Ba3+ Kd7 d6 Ke6 d7 c1R d5+ Ke5 d6 Ra6 Nf4 Nh6 g8Q Rc5 g7 Qe8 d8R Be6 d7 Nc6 b8R Bb3 b7 Nb4 Ne6 Rb6 Rd3 Bd1 Rbc8 Ra5 Qg5 Bhf3 Nc3 Rd5 Qh7 Rg8 Qhg6 Rdb5 Qg2 Rd5 Na4 f4+ Kd2 Rdb5 Kc3 Ra5 Q6g5+ Ke4 b8B Re5 Rd5 Ke3 Bd6 Rf5 Qg6 Re5 Q2g5 Ke2 Kd4 Kf1 Rc4 Nd3 Bac5 Nc1 Rc8 Re2 d8Q Qb5 Re8 Re5 f8R Nf7 Qc7 Nd8 Rf6 Rf5 Nf8 Re5 Rb1 a1Q+ Rc3 Bg4 Re6 f3 Rb4 Qb1 Ra3 f2 Qa7 Bge2 Qa5 Bf3 Rd3 Na2 Ra3 Rh8 g8Q Qc2 Q8g7 Rg8 Qg2+ Ke1 Q7f6 f1B Qfg5 Nf7 Red8 Bf1e2 Rd7 Nd8 Re3 Nb7 Re4 Nd8 Rb3+ Nb4 Rc3 Na2 Ra3+ Nc3 Rdc7 Nf7 Bb4 Nd8 Rc4 Qb2 Bbc5 Qc2 Rb4 Na2 Rc4+ Nb4 Rcc3 Na2 Q2g4 Kf2 Rd3 Kf1 Qg2+
1q2R2Q/2N1Bb2/1nQ2pBr/Qb2r3/2n2K2/1R1N1B2/1Q3bB1/2nbB1Bk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 d4 c5 e4 a5 b4 h5 g4 a4 b6 c4 e5+ Ke7 e6 Kd6 e7 h4 e8B c3 b5 c2 g6 f6 b7 h3 b6 a3 g5 a2 g7 h2 g6 Rh6 Bd2 c1N Qc2 Qe7 Na3 Qc7 Rb1 a1Q Nh3 Be6 Rb3 Nd7 b8Q Ra5 b7 Ra4 Qc6+ Ke7 Be1 Na2 Nb5 Qb2 Nf2 Ra5 Nd3 Bf7 d6+ Ke6 d5+ Kf5 Qa7 Qb8 Nc7 Rb5 Qa5 Ne7 g8Q Nb6 g7 Nc4 d7 Nc1 d8B Nc8 d6 N8b6 d7 Re5 Qh8 Bc5 g8B Bf2 Be7 Kg5 d8Q Kh4 Qd4 Qd2 Rg1 h1B+ Rg2 Kh3 Qb2 Rf5 Ke4 f3 Bh7 Rfh5 Rg8+ Kh2 Bg6 Qe2+ Kf4 Re5 Bh5 Bg2 Bg6 Kh1 Bd7 Bh3 Re8 Bg4 Bdf5 Bh5 Be4 Bg4 Bh3 Qf1 Bd5 Qg1 Bf1 Qg2 Bde4 Bc5 Bd5 f2 Bde4 Bd1 Bf3 Qc8 b8B Qb7 B1e2 f1B Ba7 Bf2 Bb8 Nc8 Ba7 Qb8 Bb6 Bh4 Bg1 N8b6 Bg4 Bf2 Bh3 Qd5 Beg4 Bfe2 Bf1 Qg2 Bf3 Na3 Nc5 Bb5 Nd3 Nac4 B1xg2+
5Nq1/1KbNQ1k1/Q1Q1B3/1n1b1Q2/2qRr3/B2bQp2/1NNn3R/2n1Qq2 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 g5 h3 Ra6 h4 Rg6 gxf5 exf4 Bg2 g4 Bf1 Rg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 Kf2 Kf7 e4 c5 b4 h5 d4 f3 Ke3 h4 d6 a4 g6+ Kg7 d5 g3 e5 a3 Ke4 h3 d7 g2 b6 a2 b7 h2 d6 c4 Kd5 c3 b5 c2 e6 Rh4 b6 Qg5 d8Q Bd7 e7 Rf4 e8Q Qf6 Qde7+ Kh6 g7 Ba4 d7 Bb5 d8Q Bd7 Bc4 Ba4 Qdd7 Qb2 f6 Qb3 f7 Na6 b8N Kh7 b7 Rf6 Nd2 Rb6 Qc6 Rb4 Ne2 g1Q Ba3 c1N Nd4 Nc7+ Kd6 Qg4 Nd7 Nf6 Be6 Qc4 b8Q Bb3 g8Q+ Kh6 Rb1 a1Q Qe1 Ba2 Qbc8 Nb5+ Ke5 Qg6 Q8a6 Ne4 Qec8 Qh7 Qgg1 Qg8 Qge3+ Kg7 Rb2 Qb1 Nc2 Bb3 Rf1 h1B Rf2 Ba2 Rh2 Bg2 Rb3 Bh3 Rd3 Bf1 Rd5 Bd3 Rd4 Qcb3 Nc4 Nd2 Nb2 Qc4 Qed8 Bc5 f8N Bb6 Qdh4 Nc3 Kd6 Nb5+ Ke7 Bc7 Ke8 Bg3 Kd8 Be5 Qhe4 Bb3 Q8b7 Bc7+ Kc8 Qc5 Rd5 Ne2 Qb8 Nbc3 Q1h4 Qf1 Qf5 Nc1 Qhe1 Re4 Rd4 Bd5 Qb4 Qc4 Kb7 Nb5 Qe7+
Q6r/NN1B1R1b/3K4/1B5k/1Nrbp2b/B2b1R2/1NqQ3N/1qN2qnB b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Ke2 c5 Kd3 e5 Kc4 a5 b4 h5 d4 f3 d6 a4 Kd5 f2 b6 c4 b5 c3 f6 a3 f7+ Kd7 g7 c2 g6 a2 b7 h4 b8Q h3 b6 h2 b7 Qh4 Qd2 Ra7 Nf3 Qg3 Na3 Rh6 Bb5+ Kd8 d7 Ke7 d8N Kf6 Nc4 f1B Nc6 Qg5 Qa8 Be2 b8N Qg4 Rf1 h1Q Nb2 Ra6 Nb4 Qf5 N8c6 Bc5 f8N Rh7 Na7 Be7 Ne6 Bd3 Nf4 Ra4 Ne2 Nh6 g8B Rh8 g7 Kg6 Be6 Kh5 g8B Ng4 Bed7 Bh4 Kd6 Nf2 d5 Nh3 Nh2 Ng1 Rf3 Qe4 Rb1 a1B Bh7 Qc4 Be4 Qg2 Rf7 Qf1 Bh1 e4 Nd1 Qh3 Ba3 c1Q Rb3 Bd4 Nb2 Qb1 Nc1 Qcc2 Rc3 Bc4 Rcf3 Qf1 Kc6 Ba6 d6 Bc8 Be8 B8e6 d7 Bd3+ Kd6 Bf5 d8N Bg6 Bed7 Bh7 Nd5 Rb4 Nb7 Rc4 Nb4
2BR3R/2b3rN/p4bBn/nknb1R2/RBQB4/4Kb2/RN3rb1/2RQ4 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ba6 g5 Bc8 h5 Qd6 Ne2 Ng8 Ng1 Qg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 Kf2 Kd7 d4 e5 b4 h5 b6 c5 f6 h4 b5 e4 b7 a6 f7 h3 d6 h2 d5 f3 g7 c4 b6 c3 g6 c2 Bd3 Nh6 g8Q Bg7 f8R Bd4+ Be3 c1B g7 Nc6 b8B Ra7 b7 Bb6 Rf5 Nb4 Ra4 Ba3 Bd4 Na2 Nc3 Nb4 Nh3 Bb2 Ng5 Nc6 Ke3 f2 Nh7 f1B Bc7 Bg2 b8R Ba1 Bd8 Rb7 Be7 Bc7 Rg1 Ra7 Rb2 h1B Rba2 Na5 Qf7 Rd8 g8B Bb7 Bc2 Rf8 Bb1 Kc8 d7+ Kb8 d6 Bd5 d8R+ Kb7 d7 Kc6 Bb4 Bb2 Ne2 Kb5 Nf4 Bf3 Rc8 Bhg2 d8R Rb7 Nd3 Ra7 Bb6 Bf6 Nb2 Rb7 Bd4 Ra7 Kd2 e3+ Kd3 e2 Ke3 e1N Rh1 Bg3 Rc1 Nd3 Qc7 Bge5 Be6 Nc5 Bc8 Bg3 Qf4 Rg7 Qe4 Bd6 Qec2 Bc7 Qc4+ Kc6 Rf4 Kb6 Bg6 Kc6 Rf5 Rff7 Qcb3 Kb5 Qc4+ Kb6 Qe1 Re7+ Kd2 Nf7 Qd1 Re5 Ng5 Re2+ Kc3 Kc6 Rhh8 Rf2 Nh7 Kb6 Qcb3 Nh6 Qc4 Rf1 Kd2 Rf2+ Ke3 Kc6 Qc3 Kb5 Qc4+
1rRrN1Q1/1Q1Q2Rn/1rb3R1/R1B2p1Q/b3BQ2/q1p3KN/8/1knQ1q2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 e6 b4 exf5 b5 Bb7 Na3 Ba6 Nb1 Bc8 h4 f6 g4 Be6 g5 Bd7 gxf6 Bc8 Nc3 g5 Nb1 g4 Ra2 Bh6 Ra1 Bg5 hxg5 Be6 Bg2 Bd7 Bf1 Bc8 Kf2 Kd7 b4 Kd6 e4 Ke5 d4+ Kd6 g6 h5 g7 c5 f7 a5 f8R a4 e5+ Kc7 d6+ Kb6 e6 h4 e7 a3 e8Q a2 d5 c4 d7 c3 d6 h3 Nd2 h2 Rf6 Ne7 g8Q Rh6 Kg3 Nbc6 Bd3 Rb8 Ne4 Ne5 Qh5 Qf8 d8R N7g6 Nh3 Bd7 Rg1 h1B Rc8 Rh8 Bb1 Nd3 Ba3 Nc1 Rf7 Bg2 Nf6 Bgc6 Ne8 Qe7 Bd3 Nf8 Rg7 Nh7 Bb1 Qe2 Be4 Qf1 Rg2 Be6 d7 Bb3 Rg6 Ba4 d8Q+ Kb7 b6 Ka6 b5+ Ka5 Rb1 a1Q Q8d7 Qa2 Bc5 Qa3 Qa2 Rg8 b7 Rf8 b6 Rh8 Kh4 g3 Ra1 Kb5 Rg1 g2 Kg3 Rf8 Qf2 Kc4 Qf4 Rf6 Q1d4+ Kb3 Qdd1+ Kb2 Rg7 Ra8 b8Q Rf8 Qbb7 Rb8 Rb1+ Ka2 Rb5 Rf6 Ra5 Rd6 Qe7 Rd8 Qbd7 Ka1 b7 Kb2 Qf8 Ka1 Qg8 Kb2 Rh1 Ka1 Rh2 g1R+ Rg2 Rh1 Rg1 Rh2 Rg6 Rb2 Rg2 Rb6 Rg1 Ra8 b8Q Kb2 Qbb7 Rb8 Rg7 Ka1 Kh4 Kb2 R1g6 Ka1 Kg3 Kb2 Bf3 Kb1 Be4+
4BNqQ/3pNB2/2kB1NR1/1rN4n/qrqb2K1/3b1B2/N3p3/Rr2NQ2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Nb3 g5 Na5 g7 Nc4 Bd2 Ne5 Bc1 Ng6 hxg6 Qc7 Rh6 Qb6 Rh1 Qd8 Kf2 h5 Kf3 a5 b4 e5 c4 a4 c5 a3 c6 a2 c7 h4 b6 d3 f6 h3 f7+ Ke7 b5 Kd6 b7 h2 b8Q e4+ Kg4 e3 b6 d2 b7 e2 Nf3 Ne7 g8B Ra6 g7 Qe8 g6 Rh7 Bg2 Nd5 Ba3+ Nb4 Ne1 Qe7 Bf3 Qf6 Nc3 Ra5 Rg1 h1R Rg2 Be7 f8N Rb5 Bf7 Rg1 g8B Qh8 g7 Bf6 Rg3 Bd4 Be8 Rh2 Be6 Qg8 B6f7 Rf2 Qc1 d1Q Qa8 Rfg2 b8N Qb3 Na6 Qc4 Nc5 Ba6 c8N+ Kc7 Qb1 Nd5 Nb6 Nf4 Nbd5+ Kd6 Qd8 Kc6 Qh4 Rh2 Qh8 Rh6 Qd1 Nh5 Qc1 Re6 Qf4 Re4 Rg2 Qh7 g8N Rh1 Ngf6 Qg8+ Kf5 Rg1 Rg6 Rh1 Kg4 Rf1 Rb1 a1Q Bb4 Qa4 Na2 Re3 Ra1 Rb3 Ncd3 Rh1 Bd6 R3b4 Nc5 Rg1+ Ng2 Rgb1 Qc1 Qh7 Qf1 Qg8 Ne1 Qcc2 Nb3 Rc5 Be5 Bd3 Bd6 Rcb5 Nc5 Qc4 Ne7+
N1r2qq1/1Q1QbQ1B/1q1RBBBk/3p1rq1/3pQ3/2B1B1N1/n3r3/3K3R b - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f7 Kd6 h4 Qe8 f5 Bb7 f6 Be4 Rh3 Qc8 Rh1 Bf5 gxf5 Qd8 Be3 g5 Ra6+ Nc6 Bc1 g4 Ra3 Ne5 Ra1 Nf3+ Ke2 Ng5 hxg5 Qb6 Ke1 Qd8 b4 Ke5 c4 h5 g6 a5 c5 e6 g7 g3 c6 d6 b6 g2 b5 h4 c7 a4 c8B h3 b7 a3 b8Q h2 b6 a2 b7 Qd7 Ne2 g1R Nbc3 Qb5 Nd5 Rh5 Nc7 Qb6 Ng3 Rg2 Bd3 Ne7 g8B Nc6 Be3 Nb4 Bh7 Be7 f8B d5 f7 Kf6 Qb1 e5 Be6 e4 Qe8 Rd2 b8Q Re2+ Kd1 Rg5 Qa7 Rc8 Na8 Rh5 Qed7 Rg5 Re1 h1Q Qab7 Qh6 Rh1 Rh5 Bc2 Qg5 Bh6 Qg8 Bhg5+ Kg7 Bh4 Rg5 f6+ Kh6 Bd3 Qf8 Qc2 Qg8 Rb1 a1Q f8B+ Qg7 f7 Qa3 Rb3 Na2 Rc3 Qad6 Rc6 Qf4 Qb1 Rf5 Rd6 Qg5 Bc2 Bf6 Be7 Qg8 Bd8 Be7 f8Q+ Qg7 Qf7 Qg8 Bd2 e3 Bc3 Qf8 Bd3 Qgg8 Bf6+ Rh2 Bc7 Rf2 Bdg6 Rf5 Rc6 e2+ Ke1 Rf3 Qe4 Rf5 Nh5 Rhf2 Bh2 Rg2 Rd6 Rgf2 Kd2 Rg2 Bg1 e1Q+ Kd3 Qh4 Ng3 Re2 Bf2 Re1 Kd2 Re2+ Kd1 Qh5 Rg1 Qh4 Be3+ Qg5 Rh1+
3rBrR1/B1bBq2Q/rnp5/1B5R/qq3q2/1N2pR2/RNR2QR1/5K1k b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 b5 h4 gxh4 a4 e4 axb5 Bf5 c4 Bg4 d6 Nc6 c5 Ne5 fxe5 Kd7 c6+ Ke6 d5+ Kf5 Kd2 Kg6 Ke1 Bd7 cxd7 Qe8 Ne2 Qc8 Ng1 Qd8 g4 f5 b4 a5 b6 h5 b5 a4 e6 h3 g5 h4 b7 a3 b8R a2 e7 f4 b6 Kf5 b7 h2 g6 c6 g7 f3 Na3 Kg4 Nc4 Kg3 Be3 h3 Qe2 Ra7 Nb2 Qe8 d8R Nh6 g8B Ra8 d7 Qg6 d6 Qg7 Bc4 Ra5 Bb5 Ng4 Ba7 e3 Rbc8 Nf6 Qd2 Ne8 b8R Ra6 Rc7 Qd4 Rbc8 Nf6 Ne2+ Kg4 Nc1 Kg3 Qc2 Nd5 Qh7 Nb6 Nb3 f2+ Ke2 Bg7 Rf8 Be5 d8Q Qb4 d7 Bf4 Bg2 f1R Qe8 Be5 d8R Rf6 Rcd7 Bc7 Qef7 Rf5 Rhc1 h1Q Rc2 Kh2 Rdd2 Qg1 R8d5 Qf2+ Kd1 Qf3+ Ke1 Kg1 Ra8 h2 Rdc5 h1Q Bh3 Rf6 Rh5 Qhg2 Rac8 Kh1 Rb8 Qg5 Rbd8 Qa3 Rg2 Rd6 Rde8 Rd8 Qff5 Qfg3+ Kf1 Qb4 Qf2 Qg7 Rf3 Qgf4 Rf8 Rg8 e8B Qge7 Rf7 Rf8 Rfg7 Rd4 Rg8 Rd8 Rac1 a1Q Re1 Qaa3 Ra1 Qaa5 Ra2 Qaa4 Bhd7+
Rr6/1q1B3p/1B1B1QBb/1p4nK/kNqB2RN/1N1q3n/NQ1nn3/7B b - - 0 1 legal: proof: g4 d5 e4 f5 exf5 g5 f4 b5 c4 a6 cxd5 Qd6 f6 Qd8 f5 Kd7 f7 a5 b4 axb4 h3 Kd6 f6 Bf5 Bg2 Kd7 gxf5 g4 Bf1 g3 Qf3 Ra6 Qd1 Rc6 Bg2 Rc4 Bf1 Rg4 hxg4 Bh6 Qe2 Bg7 Qd1 Bf8 Ke2 e5 Kf3 c5 a4 g2 d4 b3 a5 b2 a6 c4 d6 Kc6 d5+ Kb6 a7 c3 a8B c2 d7 Ne7 g5 e4+ Kg4 e3 g6 e2 d6 e1N g7 Qc7 d8N Qc3 g8B Qg3+ Kh5 Qe5 d7 Qc7 Nc6 Qa7 d8B+ Kc5 Nf3 g1N Nh4 Qd7 Bh3 Bh6 f8N Qc7 f7 Kb6 f6 Kc5 Be3+ Kc4 Qd4+ Kb3 Bd7 c1Q Ne6 Na6 f8B Nb8 f7 Qc4 Nb4 Ngf3 Nc3 b1Q Rg1 Nd2 Rg4 Qc8 Nca2 Qbd3 Bh1 Nbc6 Bb6 Qb7 Qb2+ Ka4 Nd4 Ng6 Bd6 Nef3 f8Q Ng5 Nb3 Nd4 Qf6 Ne2 Bf7 Rb8 Bed4 Nf8 Qe6 Nh3 Qf6 Ne6 Bg6 Neg5 Rc1 Qe6 Rc8 Qec4 Rc7 Qc8 Ra7+ Qa6 Ra8 Qa7 Ba5 Qb7 Bab6+
7Q/RB2b1NR/3pqnN1/R3p3/4N1b1/rNbKB2p/N1R5/rB2Bkn1 b - - 0 1 legal: proof: d4 b5 e4 b4 d5 b3 d6 cxd6 axb3 Qc7 b4 Qb6 b5 Qd8 c4 f5 exf5 Nf6 c5 Ng8 h4 g5 hxg5 Qb6 c6 Kf7 cxd7 Qd8 Kd2 h5 b4 a5 f4 e5 g4 a4 g6+ Kf6 b6 a3 g5+ Ke7 b5 a2 f6+ Ke6 f7 Kf5 b7 Ke4 f5 h4 b6 Kf4 f6 Kg3 g7 Kf2 g6 Ra7 Qh5 Nh6 g8N Rh7 g7 Ra4 Nc3 Re4 Nf3 Ng4 Nd4 Qe7 d8B Qe6 Bd3 Qf5 Bb1 Ne3 Kd3 Rh6 Nb3 Nc4 Be3+ Kg2 Be7 Na6 b8R Qh3 b7 Rh8 Ra8 Qg3 b8R Nc7 Ra5 Bf5 Rc8 Bh3 Bd8 Be7 f8N Bg4 f7 Qh2 Ne6 Nd2 f8N Nd5 Ng6 Nf3 Nf6 Qh3 g8B Ra4 Ng7 Ra3 Nfe4 Nf6 Bd5 Ng1 Bb7 Kf1 Bb6 Rf8 Qh8 Rd8 Rc7 Ra8 Bc5 Ra6 Bb4 Ra7 Nd5 Ra8 Be1 Ra6 Nb4 Ra7 Bc2 Ra8 Rc1 a1B Bb1 Bc3 Rc2 Ra1 Na2 Ra7 Rac5 Ra3 Ra5 Qf3 Rc6 Qf5 Rca6 Qe6 Ra7 Bd2 Rh2 Bc3 Rhg2 h3 Rg3 Bf5 Rg5 Bg4 Rh5 Bf5 Rh6 Bg4 Rh7
bB1B2b1/4K3/1pr2R2/RRk1n2R/q2n3R/2N2Bp1/BqR1p2b/N1Q1Q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 d4 g5 f4 c5 h4 b6 a4 b3 a5 b2 f6 g4 f7 g3 a6 c4 h6 c3 h7 c2 h5 Bg7 f8Q+ Ne7 h6 Qc7 f5 Qc4 a7 Nc6 f6 Bh3 f7 Qa4 Qe1 Bg2+ Nf3 Qa3 Bc4 Qa4 Ba2 Qa5 Rh4 Qb4 Nc3 b1B Qc8 Qb5 f8R Bf1 Bf4 Nf5 Nd2 Qa4 Rf6+ Ke7 Nb3 Re8 h8R Be2 h7 Rb8 a8B Ba6 Rg8 Ne3 h8R Bc4 R8h5 Ng4 Kf5 e4 Kg6 Rb7 Bb8 c1Q Kf5 Bbd3 Rb1 Rd8 Na1 Rc7 Rb3 Nge5 Bb7 Bh8 Rgg5 Qb2 Ba8 Be2 Bb7 e3 d6+ Ke8 d5 Bf3 Ke6 e2 Rgf5 Bg7 Rfg5 Bh6 Rgf5 Be3 Rfg5 Bg1 Rgf5 Rf7 d7+ Kf8 Qc7 Rc8 d8B Nd4+ Kd6 Bh2 Qc5 Nc2 Qe3 Rc5 Q3c1 Rb5 Ke6 Ke8 Ba8 Rc7 Rfg5 Bd3 d6 Bh7 Bb7 Bg2 Bf3 Rc6 Rgf5 Nf7 Rd5 Bg8 Rd2 Kf8 Kd7 Nd4 Rc2 Kg7 Ke8 Ne5 d7 Bh1 Be7 Bg2 d8R Bh1 Rd5 Bg2 Kd8 Bh1 Rg6+ Kf7 Bf6 Ke6 Ke8 Rb4 Ra5 Rb5 Kf8 Kd7 Bd8 Bg2 Rg7+ Ke6 Rc7 Kd6 Rf7+ Kc5 Ke7 Bh3 Rff4 Bc8 Rff5 Bb7 Rf6 Ba8 Rbxb5+
4Q2n/1p1Q1r1b/1b1K1Q1n/3b1R1k/pN2p3/B1R1N2N/2N3bN/1N1B2Qq b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 d4 Nf6 dxc5 Ng8 hxg5 a5 b4 a4 Bb2 Nc6 Bc1 Ra5 bxa5 Nb8 Bb2 Na6 Ba3 Nb4 Bc1 Nxa2 Kd2 Kf7 Ke3 d5 Kf4 h5 Ke5 h4 c4 h3 g4 e6 f4 h2 c6 d4 f6 Kg6 c5 d3 f5+ Kh7 a6 d2 a7 Qe8 a8Q Nh6 g6+ Kg8 f7+ Kg7 c7 Qe7 c6 Nb4 g5 Nc2 Nh3 Qb4 Be2 Ng8 Ra3 Qh4 Rf3 Be7 f8N Qh7 Qg1 d1B Ba3 Bd8 Kd6 Bd7 c8N e5 c7 e4 Ne7 Ne3 c8Q Bb3 Nd5 Bb6 Bd1 Ng2 Nb4 Be8 Qd7+ Bef7 Qae8 Nh6 f6+ Kg8 g7 Qf5 Ne6+ Kh7 g8N Kg6 Nd4 Bc4 Ne7+ Kh5 g6 Rh7 g7 Be2 g8N Bc4 Ned5 Nf4 Ne3 Bd5 Ndc2 Bg6 f7 Rg7 f8Q Rf7 Qg7 Bh7 Qa1 Ng6 Qf6 Ng4 Nh6 Nh8 Nf1 Qg5 Nf5 Qh4 N5e3 Nh6 Qf2 Qg4 Rg1 h1B Nh2 Qg7 Rgg3 Bg2 Qg1 Qg5 Nef1 Qg6 Rc3+ Qg4 Rgf3 Qh4 Nfe3 Qe1 Qf2 Qh1 Qg3 Bf1 Qg1 Bg2 Rf5#
6K1/2B2BB1/qnbnQ1q1/b7/Rpk2q1N/1bpN2B1/p4BNN/QB3R2 b - - 0 1 illegal: No possible last move, all moves rejected
Q1n5/b2NNN1R/r1N4B/1K1B2Bk/1b4R1/4bpbb/1pp1RB1B/n6R b - - 0 1 legal: proof: e4 h5 g4 hxg4 c4 b5 f4 e5 d4 d5 b4 a5 bxa5 Qe7 c5 Ra6 c6 Qd7 cxd7+ Ke7 exd5 Re6 d6+ Kf6 d5 e4 Be3 Kf5 Bc1 Re5 fxe5 Kg6 Kd2 c5 Kc3 f5 d8B f4 h4 b4+ Kc4 f3 a4 b3 e6 e3 h5+ Kh6 a6 g5 d7 e2 a7 e1B a8R g3 e7 b2 e8R g2 d6 Bh4 a5 Na6 Qa4 Bg7 Bb6 Bf2 d8N Ne7 d7 Nd5 Nc6 Nb8 d8B Be6 a6 Bg4 a7 Bc3 Re2 Bce1 Kb5 c4 Nh3 g1B Nc3 Nb4 Nd5 c3 Nde7 Bh4 Bf2 Bd7 Qa5 Nc2 Ra4 Rh7 Rg4 Na1 Bf4 c2 Bh2 Bb4 Qa4 Kg7 h6+ Kf6 Qa5 Bg3 Qa6 Rg7 h7 Rg6 h8B+ Kf7 Qc8 Be6 Bhd4 Nd7 Bg7 Nb6 Bh6 Rf6 Qb7 Nc8 Rb8 Bf5 a8N Bd7 Nb6 Re6 Rd4 g4 Qa8 Rd6 Ng5+ Kf6 Ned5+ Kg6 Rb7 Kh5 Ne7 Rg6 Nf7 Bf5 Be1 Be3 Bf2 Rd6 Nd7 Rg6 Na5 Ra6 Ra7 Bgf4 Rc7 g3 Nac6 g2 Rb7 Bc7 Rg4 g1B Nd5 Be6 N7b6 Bec5 Nh8 Bf5 Rg2 Be7 Bh4 Bh7 Re5+ Bf5 Bc4 Ra3 Ree2 Bgc5 Bf2 Bed6 Bdg5 Bh3 Rg4 Bb8 Rh7 Ba7 Nde7 Bg3 Nf7 Be3 Nd7 Ra6 Bd5
KR1N3R/1B1N4/1pp4k/2NB1qR1/RB1rNp2/Qb2p3/4R1bq/2n1B1n1 b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 h5 b4 a5 g4 axb4 gxh5 e4 d4 Bd7 c4 Ra4 d6 Bf5 d5 Bc8 c5 Ra6 d7+ Ke7 Qe2 Re6 Qd1 Re5 Bc4 Kf6 Bf1 Bd6 fxe5+ Ke7 cxd6+ Kf8 Kd2 f5 Ke3 g5 Kd4 Kg7 Kc5 f4 h4 b3 a4 g4 h6+ Kg6 e6 g3 h5+ Kh7 e7 g2 e8R b2 a5 c6 a6 Ne7 a7 Ng8 a8B Qe7 Kb6 Nf6 Ka7 b6 Qa4 Qg7 Bd2 Bb7 d8R Qg3 d7 Ng8 d6 Ne7 Nc3 b1B Be1 Bc2 Qa3 Qf3 Bc4 Rg8 Bd5 Qe2 Nf3 g1Q Ne5 Qg6 Rg1 Nf5 Rg5 Na6 Rb8 Nh4 d8N Qe6 d7 Qf6 Ne6 Nf3 d8N Ng1 Nc5 Qf5 Ned7 Bc8 Bb7 Qh2 Ka8 Bb3 Re6 Nb4 Ra2 Kh8 h7 Nd3 Re2 e3 Re4 Re8 Ra4 Nc1 N3e4 Re6 Bb4 Rg6 Be1 Kg7 h8B+ Kh6 Bhc3 Rf6 Bb4 Rd6 Ndf6 Be6 Nfd7 Bf7 Be6 Rd4 Bd5 Kh7 h6 Bh5 Nf7 Bf3 Nd8 Bg2 Rh5 Kg6 h7 Kg7 Rg5+ Kh6 h8R+
b2k1N2/RB3Kn1/pN5R/1b2q1p1/3RQ1N1/R7/1pp1BB1q/B2Nr1bN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 b4 b3 c5 Ra2 a6 Qc2 c4 Rb2 c3 Ra2 Nd7 Ra1 Nb6 Qd1 Nc4 bxc4 Ra7 Na3 Rb7 Nb1 Rb5 axb5 Ke7 Bg2 Kd7 Bf1 Ke8 Kf2 f5 Kf3 g5 d4 b3 h4 c2 e4 Bg7 c5 Bd7 d6 Bf6 e5 Bc6+ d5 Qe7 d7+ Kd8 b6 Qf8 b7 Ke7 d8N Qe8 b8N Qg6 e6 Bb7 h6 Bc8 c6 Bb7 h5 Qf7 c7 Bc3 c8B Be5 h7 Qe8 h6 Qf8 Qe1 Bd4 Qe4 Bg7 d6+ Ke8 e7 Qf6 Nd7 Bf8 Ra3 Qc3+ Be3 Ba8 Be2 Qa5 Ne6 Qd5 Nb6 Qa5 d7+ Kf7 d8R Qb4 e8N Ke7 Nf6 Qd6 Nc3 Qe5 Ng4 Nf6 Bb7 Nh5 Nh3 Ng7 Rd4 Ke8 Rf1 Bc5 Nd1 Ke7 Bf2 Re8 Nd7 Bb6 Nef8 Kd8 h8R Re6 h7 Ba7 Rb4 Bc5 Nb6 Bd4 Be1 Bg1 Nhf2 Re7 Nh1 Re8 Kg2 f3+ Kh3 f4 Bg3 f2 Rd4+ Qd5 Bh4 f3 Re1 f1B+ Kg3 f2 Kf3 Bh3 Ke3 f1Q+ Bf2 Nh5 Kd3 Qd6 Kc4 Qg2 Rf1 Ng7 Re1 Kc7 Rf1 Qf4 Kd5 Qgh2 Re1 Rc8 Rf1 Kd8 Re1 Rc3 Rf1 Re3 Re1 Nf5 Ke6+ Qd6+ Kf7 Bf1 Rg8 Qe5 Rg6 Ng7 h8B Qh2 Rh6 Qe5 Bf3 Bb5 Rf1 Re1 Be2 Ne6 Rd3 Qh2 Ba1 b2 Rd4 Ng7 Bh4 Bd7 Rff6 Ba4 Bf2 Bb5 Re6 Qe5 Re7 Qh2 Bd5 Qdg3 Ra7 Qe5 Bb7+
B2QRKB1/1pN1R1B1/RB4p1/q2pkn2/3nnN1R/1qN5/2p4r/1r3RN1 b - - 0 1 illegal: No possible last move
2B1brQ1/q2b4/1R2N3/qr2RnbN/1B1N1n1k/N2r3Q/1qn3R1/N1N2KR1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kf6 d4 e5 g4 c5 d6 a5 d7 h5 b6 h3 b5 a4 d5 e4 b7 c4 g5+ Kf7 d6 a3 f6 Kg6 f7 h2 b6 e3 f5+ Kh7 f6 Kg6 Qf3 a2 Ne2 h4 Qh3 Kh5 g6 c3 g7 c2 Na3 Ra6 Rg1 h1N Bd2 Nh6 g8Q Ra8 Bb4 Nf5 Nc1 e2 Rg2 Na6 b8N Nhg3 b7 Be7 f8R Qa5 d8N Bd7 f7 Bg5 Nbc6 Rb8 Ne6 Rd8 Rb1 a1Q b8R Be8 Kf2 e1R d7 Re5 Rb6 Ne2 Ncd4 Nf4 Ndb3 Rb5 Ned4 Qb2 Na1 Qa2 Ncb3 c1Q+ Kg1 Qc7 Nc1 Qa7 Bd3 Qb2 Kf1 Rh6 Bc4 Rd6 Be6 Rb8 d8N Rdd5 Qg3 h3 Bc8 h2 N8e6 h1B Qf3+ Kh4 Ng7 Bd7 Re8 Ra8 f8N Rb8 Nde6 Rd3 Nd4 Ra8 Re5 Be8 Bc3 Nb4 Nfe6 Nc2 Nh5 Rb8 Bb4 Bd7 Bb7 Rc8 Qe3 Rf8 Bc8 Be8 Rg3 Bhc6 Rg1 Qc3 Rb2 Bcd7 Ra2 Ne1 Rag2 Qb2 Qf3 Nc2 Qh3+
2BN4/Nr4N1/Q1bb1Br1/1r1qRb1B/k3n1b1/1N1R4/1nKn1bBR/2B3R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 e4 f5 d4 a5 Kd2 c5 b4 h5 b6 a4 g6 h4 g7 f3 d6 Kc6 d7 f4 d5+ Kb7 e5 f2 d6 Kc6 e6 f3 g5 c4 e7 Kb5 e8B a3 b7 h3 g6 h2 Nh3 a2 Kc2 Nc6 b8B Be7 Nf4 Ra5 Nh5 Rh7 Nd2 Ka4 b5 c3 b6 Ne5 b7 Nc4 Bg2 f1N Nb3 f2 Qd3 Nb2 Qa6 Nf6 g8R Nd2 g7 f1B Ba7 Bc4 b8N Be2 Nc6 Bg4 Bd4 Nfe4 Na7 Rh6 Rg1 h1B Rh8 Rg6 g8B Bf8 Rb1 a1B Be6 Qg5 Bg7 Qd5 d8R+ Bd7 Rh6 Bc6 d7 Bd6 Bf6 Bf5 Qe2 Rb5 Ng7 Rb7 Rh2 Rb5 Bf1 Bf3 Bg2 B3g4 Qf1 Rb7 Qa6+ Qa5 Nh5 Bb4 Rf1 Rg8 Re1 Nbc4 Bb2 Ng3+ Kc1 c2 Re5 Nge4 Ba3 Bd4 Na1 Rg5 Ng7 Be3 Bh5 Rg6 Bb2 Bf2 Ba3 Nb6 Kb2 Be7 Rd1 c1R Rg1 Rc5 Nb3 Nbc4+ Kc2 Rd5 Bc1 Nb2 Rgh1 Rd4 Rg1 Rdb4 Rd5 R4b6 Rd3 Bec5 Re8 Bd6 d8N Rb4 Bc8 R4b6 Re6 Rb4 Qb6 Qd5 Re5 Rb5 Qa6+
b1q2R1R/8/n1Nr4/b1qR1QRB/Q1N1K2Q/n1rrR3/1nkB3Q/R3nq2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 g4 Kc5 b4+ Kd4 d6 a5 d7 e5 g5 h5 d3 c5 b6 c4 b7 e4+ Kf4 h3 g6 h4 g7 e3 b5 a4 b6 e2 f6 e1N f7 h2 Nd2 Kc3 d4 a3 d5 a2 d6 h3 Qa4 Na6 b8R Nf6 g8R Ne4 b7 Rh6 Ngf3 Nec5 Nd4 Ncd3+ Ke4 Nb2 f4 Qb6 d8Q Qc5 d7 Rd6 Rhg1 h1R f5 h2 R8g5 Be7 Qh8 Bd8 f8Q Ba5 d8R Be6 f6 Bd5+ Kf4 Bf3 R1g3 Rg1 f7 h1Q Rh3 Rg3 Be2 Qf1 Qh4 Bd5+ Ke5 Rd3 Bh5 Qc8 Re3 Bf3 Rb1 a1N Nc6 Nac2 Ra1 Na3 Rd7 Ra7 Ra8 Bd5 b8Q Rb7 Rd8 Rb3 Qc7 Kc2 Rb8 c3 Nc4 Bh1 Bd2 Rf6 Qc5 Rfd6 Rb5 Bf3 Rh8 Be4 f8R Bd5 Nb8 Ba8 Nc6 Rg6 Ra2 Kb1 Nd6 c2 Ke4 c1Q Qf5 Re6+ Re5 Qc5 Ra1+ Kc2 Nc4 Rf6 Rd5 Rg6 Qb4 Rbc3 Qch2 Rd6 Qa4+
1QQQ4/1bnKRq1k/2rQ4/4Nn1q/1R3Rrb/1n6/2RnB2R/Nq1R1bB1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kg7 Kg4 c5 f4 a5 d4 e5 b4 h3 d6 h2 b6 a4 b7 e4 d5 c4 d7 a3 f6+ Kh6 Kf5 c3 Ke6 c2 g4 a2 f7 e3 d6 e2 f5+ Qg5 f6 e1N b5 Ne7 b6 Bg7 f8Q Ng2 f7 Ra3 Nd2 Rg8 Nb3 Na6 b8R Bb7 d8R Ne3 d7 Nc4 Qd6 Qf4 Be3 c1N Be2 Nf5 Rdc8 Nd2 d8Q Ra5 Rc4 Rc5 Nf3 Rc6 g5+ Kg6 Rc8 h5 Rb4 h4 Kd7+ Kh7 Bg1 h3 Ne5 Bf6 Rb1 Qf3 Na1 Ncb3 Rd1 Nc7 Qfe8 Qd5 f8R Be7 Rf6 Qf7 Re6 Ba6 b7 Bc4 b8Q Bd3 Bg4 Bf1 Be2 Bf6+ Re7 Rg6 Nc2 a1Q Qf8 Qb1 Na1 Rh6 Rf4 Rh4 Qfe8 Rg4 g6+ Kh6 g7 Kh7 g8R Bg5 Ba7 Bh4 Rf8 Be1 Rb4 Bh4 Rg1 h1B Rg2 h2 Bg1 Ra6 Rf2 Bb7 Rg2 h1Q Rh2 Nd5 Rc2 Rc6 Qdc8 Nc7 Qed8 Qf3 Rb6 Rg3 Rb4 Qh5 Rg8 Rg2 Rgg4 Rg3 Rgd4 Rg4 Rf4
RKQR3B/n2R3q/r1q4N/3kn2N/1b2r2b/Nn2R3/NbR3rQ/R2B1b2 b - - 0 1 illegal: No possible last move, all moves rejected
3n1N2/r3b1n1/B2b2NK/NNr1Q1nB/kq2q3/1bb2R2/1B4RB/1n1RR1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 h5 Kf4 c5 Kg5 a5 f4 e5+ f6 c4 g4 a4 b4 h3 d4 c3 b6 e4 b5 h2 f5 e3 d6 c2 b7 h4 b6 Kc6 d5+ Kc5 d7 Kb4 d6 h3 Na3 e2 Qd5 e1Q Bb2 Ne7 f7 Rh6 f6 Qe4 Nf3 Ra7 Ne5 Nbc6 b8N Nf5 b7 Qe7 d8R Be6 d7 Ng7 Rg1 h1N Ng6 h2 Qe5 Nf2 Re1 h1N Ba6 Bb3 Nb5 a3 Rc8 a2 d8R a1B Rdd1 Nd8 Nc6+ Ka4 b8B Q7b4 Na5 Be7 f8R Bd6 f7 Ng3 Rc3 Rh2 Rg8 Nf1 f8N Nd2 Rf3 Nh3+ Kh6 c1B g5 Nb1 Qf6 Bd2 Ne7 Bg3 Ba3 Bd4 Bb2 Nge6 Qf4 Bh4 g6 Bc5 g7 Re2 B8e5 Bd6 Qg5 Re3 Bh2 Rd3 Qf4 Bc3 Qe5 Bf6 Rh8 Rd5 g8B Bh4 Bf7 Rc5 Rhg8 Bf6 R8g5 Ng7 R5g2 Ng5 Be8 Rcc7 Bh5 Rc5 Neg6 Bfe7 Rgf1 Qa3 Rh1 Qab4 Rhg1
n2K2b1/Br5N/1k2q2n/NN1n2rB/2Rb1B2/2NBbRQn/2R4R/2Nq1b2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 b4 h5 f4 a5 d4 h3 b6+ Kb7 b5 c4 d6 a4 Kd5 h2 g5 h4 d7 h3 Ke6 e4 d5 e3 f6 a3 f5 a2 g6 c3 d6 c2 g7 e2 f7 e1Q+ Ne2 Nh6 g8B Qb4 f6 Ra6 Qe1 Nf5 Nbc3 Nh4 Qg3 Qa3 Bf4 Bh6 f8N c1N f7 Ra7 Nh7 Qa6 f8R Nd3 Nc1 Nb4 Bf7 Nf5 Bd3 Nd5 Bh5 Rg8 Rb1 a1B Rb4 Rg5 Rc4 Qa2 Kf7 Na6 Ke6 Kb8 b7 Nac7+ Kf7 Na8 Ke6 Qc7 Kf7 Qc5 Ke8 Qg1 d8N Be6 Nf7 Qd1 Kd8 Qae2 d7+ Qe5 Nb1 Bd4 Nd6 Bg8 Nc3 Qe6 Rf7 Ra5 Rf6 Ka7 b8N Kb6 Nc6 Ra7 Na5 Rb7 Rf8 Be3 Rf6 Bg7 Rf7 Bgd4 Rf8 Ka7 b6+ Ka6 Ndb5 Nh6 Rg1 h1B Rg2 h2 Rc2 Bg2 Rf7 Rc7 b7 h1N b8B Nf2 Bde2 Bg7 Be5 Ra7 Kc8 Nh3 Rf3 Kb6 Bf4 Rb7 Bf1 Qe5 d8R Ndc7 Rdd2 Nd5 Bd3 Qe6+ Kd8 Bf1 Rh2 Bgd4 Ba7+
NNqN3n/1Q1R2R1/2bn3N/rBB2Q2/1bBqB2b/2n4K/1q3N1p/3kN2r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 Kg2 Ke5 e4 Kd4 b4 a5 d6 h5 e5 c5 e6 f5 d7 c4 b6 a4 e7 a3 e8N f3+ Kh3 f2 b5 a2 g6 f4 b7 f3 g7 h4 b6 c3 g5 c2 g6 Na6 b8N Nb4 b7 Qf6 Nc3 Qf4 Ba3 c1B Bb5 f1N Nc7 f2 Qf3 Ne3 Nd1 Qe5 Qf5 Ne7 g8B Nc4 d8N Nbd5 g7 Ra5 Nf7 Nd6 Nh6 Bd7 Na8 Ng6 Bh7 Nc3 g8B Bc6 Bgc4 Qd5 Rh2 f1Q+ Rg2 Qg8 d3 Qf4 Nf2 Ke3 d4 Kd2 d5 Qd4 Bc5 Be7 Rb1 a1Q Rb3 Ba3 Nf3+ Kc1 Ne1 Bb4 Rb2 Qe8 Rd2 Qc8 Rd3 Qb2 Rg5 Ne5 Rg7 Nef7 Bg6 Rh7 Rd2 Nh8 Rd3 Ne8 d6 Bg5 d7 Nd6 d8N Be7 Nd7 Bf6 b8Q Bg5 Kh2 h3 Qb7 Bf6 Nb8 Bh4 Rd7 Rg7 Bh7 Rg1 Rg3 Rf1 Qf3 Rg1 Be4 Kd2 Qf5 Rf1 Rg1 Kc1 Kh1 h2 Kg2 Kd2 Kh3 Kc1 Rg3 Rh1 Rgg7 Kd2 Nfg4 Kd1 Nf2+
2BkBb2/6n1/1NrBN1r1/1pR3q1/7R/Q2bbQ2/qRRRq3/R1n1rB1K b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 e5 f4 c5 Kf2 h5 g4 b5 Kg2 e4 a4 b3 a5 c4 a6 h4 a7 e3 f6 c3 f7+ Ke7 f5 c2 g6 e2 f6+ Kd7 d6 e1B d5 b2 g5 Qa5 g7 Qb6 g6 Rh6 Ne2 Qa5 Nd4 Rh8 Nd2 b1R Qf3 Qa3 Ne6 Rh5 Nc4 Rb2 Bf4 Be7 f8Q Nh6 g8R Qa2 f7 Rb1 g7 Nc6 Bg3 Rb8 a8B Nd4 Bb7 Nhf5 Rh8 Nb3 g8B Rh6 Rh2 c1Q+ Kh1 h3 Rb2 Rg6 Rh4 h2 Bh7 Rg5 Bg6 Bf2 Qh5 Bb6 Kg2 Nc5 Nc7 Nb3 Ba6 Bb7 Ne6 Bed8 Qe7+ Kc8 f8R Ba7 Be8 Ng7 Rf5 Rg6 Qf3 Qg5 Re5 Bc7 Ree2 Bf2 Rec2 Re1 Qef8 Nc1 Qa3 Be3 Qf3 Ra8 d7+ Kb8 d6 Be4 Bb7 Ra6 Bc8 Rc6 d8R Ba5 Rd7 Bb4 Nb6 Bbc5 Rf7 Bf5 d7+ Bd6 Nf4 Kc7 d8R+ Be7 Rf6 Bf8 Rdd2 Bd3 Rf5 Kd8 Rfc5 Qh5 Qf2 Qd1 Qf3 Qe2+ Kh3 h1Q+ Bh2 Qg1 Ne6+ Ke7 Bb8 Qg5 Bc7 Qd1 Kh2 Qe2+ Kh1 Qf2 Nd4 Qe2 Bd6+ Kd8 Ne6+
BrnRN1B1/B1b1pbq1/R5Q1/1n1rrq2/K1n2N2/5kRR/2RbR2B/4Q3 b - - 0 1 illegal: No possible last move, all moves rejected
1N1qn1QR/1bR1rr2/7K/1nN1k1B1/1R1pB1bR/RbQrB3/Rb6/1b1B4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 g4 Ke6 e4 a5 b4 d5 c4 h5 g6 f5 b6 a4 g5 f4 c5 h4 c6 h3 g7 h2 b7 d3 c7 a3 b5 a2 b6 f3 Ke3 d4+ Kf4 d2 g6 f2 Qf3 d1B Qc3 Bc5 Bg2 f1B Nd2 Bd6 Ngf3 Rh3 Nb3 Rh5 Be3 Rh6 Nc5+ Ke7 Kg5 Ra3 e6 Nf6 g8B Bfe2 e5 Ra6 g7 Nbd7 b8B Bd3 b7 Ke8 e7 Rh8 Bb3 Rh7 g8Q+ Nf8 Ba4+ Bd7 c8R Ra7 Rc7 Rf7 Kh6 Bb1 Bc2 Ra3 Be4 Bdc2 Bf1 Rb3 Be2 Bg4 Bd1 Ra3 Nd7 Ra7 Nd2 Ba3 Nb3 Bb2 Nbc5 Ba4 Rf1 h1B Rf3 Bb3 Rh3 Bhf3 Rh4 B1c2 Rc1 Bb1 Rc2 a1R Re2 Bc1 Ra2 Bb2 Rc6 Qb6 Bdc2 Bf5 Nd3 Rg7 Bd5 B5g4 Bc7 Qa5 Bd8 Qc7 b8R Qc8 N3c5 Rf7 Kg5 Be4 Rb4 Qa8 Bd3 B1c2 Be2 Rd1 Rc8 Rd2 Bd1 Bb1 Rc6 Qc8 Nb8 Rd3 Rca6 Qc7 R6a3 Bg2 Be4 Qc8 Bg6 Ba8 Be4 Bad5 Qg7 Ne6+ Kg6 Nc7 Qh8+ Rf8 Kh6 Kf7 e8R Nb5 Kg5 Nd7 Bf6 Qc7 Rc8 Qd8 Be7 Nf6 e6+ Ke8 Qg7 Rf7 Kh6 Rd7 Rc7 Ba8 Bd6 Bb7 Bdf4 Ke7 Bg5 Kd6 Qh8 Ke5 e7 Rf8 e8R+ Re7 Qh7 Rf7 Rh8 Ne8 Qg8
3nN1Rr/r1n5/5K1B/qrQpR1rQ/N2NB1Nr/4B1k1/b1B1b1B1/3B2b1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 e5 Ke4 a5 f4 h5 b4 a4 c4 h4 g4 a3 g6+ Kf6 g5+ Ke7 g7 Kd6 c5+ Ke7 b6 h3 b7 h2 b5 d3 f6+ Ke6 g6 d2 b6 d6 c6 a2 f7 Na6 b8N Qf6 f5+ Ke7 c7 Ra7 b7 Nh6 g8B Ng4 g7 Ra8 Ne2 Qh4 f6+ Ke6 Nd7 Qh3 b8N Rh7 Rg1 h1R Nbc3 Rh5 Bg2 Nh6 Bh7 Rg5 g8B Qh5 Nc6 Bg7 f8B+ Nf7 Rb1 a1R Na4 Ra7 Rb5 Rb1 Rc5 Rb5 Rd5 Bb7 c8B Nc7 Rc5 Bh8 Bh6 Ba6 Bb7 Rh4+ Kd3 e4+ Kd4 Bg7 Nce5 e3+ Bbe4 Bb7 Ng4 Bd5 Bc2 Ba2 Bhe4 Bf8 Bgh7 Nd8 f7 Be7 f8Q Bf6+ Kd3 Bd4 Rf5 Bb6 Ndf6 Bd4 Ne8 Bc5 Qe1 d1B Qa5 Bb6 Bef3 Bd4 Ke4 Bb6 Ng3 e2 Be3 e1R Qh8 Be2 Re5+ Kf7 Nf5 Bd4 Bg8+ Kg6 Bd5 Reb1 Qf8 Rb8 Qc5 R1b5 Qh8 Rc8 Bd2 Be3 Nd4 Bf2 Be3 Rcb8 Rh1 Bg1 Rh3 Rba8 Rg3 Nb7 Qc3 Bd1 Bf8 Rc5 Re7 Rf5 Nf6 Rh1 Nh6+ Qg5 Bg7 Rh4+ Bg4 Rg8 Ne8 Nd8 Bb7 Rca5 Qb4 Rff8 Qb5 Qc5 Re5 Qb6 Qc5 Rb5 Bf6 Qa5 Bfg5 Rh1 B4f3 Rh4+ Rg4 Kh5 Bd5 Nf7 Kf5 Rg6 Bde4 d5 Qh7 Rh8 Be2 Rgg8 Kf6 Nd8 Be2f3 Be2 Qf5 Bec4 Bfd1 Be2 Rg3 Rh3 Bgf4+ Kh4 Rg7 Rh2 Ng4 Rh1 Bg5+ Kg3 Bh6 Rh2 Qh5 Rh4 Rh7 Rg5 Rg7 Nf7 Rg6 Nd8 Rg8
1r4R1/1bK1pb2/1NQ2qBb/5n2/3RBRkb/1BR3B1/2b1rrR1/n3RQ1N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 h5 Ke4 a5 Kd5 a4 f4 d6 g4 d3 b4 a3 c4 h4 f6 Kg6 b6 a2 c5 h3 f5+ Kh7 c6 h2 c7 d2 b7 Ra6 g6+ Kh6 f7 Kg5 g7 Rh3 b5 Nc6 b8R Rh5 f6 Ra8 b6 Na7 b7 Qd7 Bg2 Nc6 Nc3 Ra4 Qc2 Ra3 Be4 Rh6 Nh3+ Kh4 g5 d1B g6 Ra6 Bf4 Rh8 Rc1 a1B Re1 h1B Bg3+ Kg4 Na4 Be5 Nb6 Nd4 Qc6 Nh6 g8R Nhf5 g7 Nb3 Rc3 Na1 Ra8 Qd8 b8R Ra2 Ra4 Bb7 c8B Rf2 Rd4 Bc2 Bd7 Bf4 Be8 Bg5 Ra8 Qc8 Ra2 Bh4 Rb2 Qb8 Ke6 d5 Kd7 Qa8 Kc7 Qa6 Ra2 Bf3 Rb2 Be2 Ra2 Bc4 Rb2 Re2 Nf2+ Kh5 Nh1 Kg4 Rd2 d4 Rb4 Rh2 Rg2 d3 Ra4 Ba2 Rd4 d2 Bd7 d1R Be6 Qf1 Bb3 Nd6 Bg6+ Qf4 Bd5 Bc4 Bde4 Nf5+ Kd7 Rd2 Rf2 Nd6 Kc7 Rh7 Rh8 Rh3 g8B Bh6 f8R Rh2 Bgd5 Re2 f7 B4d3 Bb3 Bc4 Re8 Rg2 Rhf8 Rh8 Rc8 Rg1 Rg2 Rf1 Rfe8 Qe5 f8Q Bg8 Qf2 Be6 Qg1 Rff2 Rf8 Bc4 Rf5 Qf6 Qf1 Bf7 Rff3 Nf5 Rb8 Rd8 Ra8 Rd6 Rf8 Rd8 Rg8 Rb8 Rf4+
3N2rN/5BbR/r2QK3/R2R3Q/bn2Q2Q/2bR1qBn/k2QpQ2/rn1b4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 g7 c3 f7 h4 d6 e6 f5 h3 b6 c2 b7 Kb3 f6 Rh4 Bc4+ Ka4 b4 Be7 f8R Nh6 g8Q Ra7 f7 Qe8 d8R Rd4 b5 Rf4 b6 Rg4 d7 Ra6 Qg6 Bb4 Nf3 Bc3+ Nd4 Nc6+ Kf6 e5 b8Q e4 b7 e3 Qd6 e2 b8Q Qe4 Na3 Qf3+ Bf4 Nb4 Qd2 c1N Qe4 Rg8 Ke6 Ng4 Bg3 Nf2 Nab5 Nb3 Nc6 Bg7 Rhd1 h1R Qc5 h2 Qh5 Rg1 Nd6 Ka3 Rfe8 h1B f8Q Bb7 Nf7 Nh3 Nh8 Bc8 Qbf4 Bc3 Qdd6 Nd2 Qfh4 Nb1 Re7 Bg2 Rd5 Bb7 Ne5 Bc6 Rh7 Ba4 Nc6 Bd1 Qff4 Rf1 Qfe3 Re1 Qf2 Bh1 Re5 Ng5+ Ke7 Bc2 Qb8 Nd2 Kd6 Qg2 Qd3 Nh3 Bf7 Rc1 Qbb6 Bd1 Ke6 Qe4 Qb1 Qd3 Qbe3 Be4 Qef4 Qf3 Qc2 Bd3 Qe4 Bb5 Qcd3 Bc2 Qdd4 Rg1 Rd1 Bba4 Ra5 Kb2 Qdc5 Bg7 Qb6 a1B Qbe3 Ka2 Qeg5 Nb1 Rd3 Na3 Qd2 Rh1 Rc8 Bac3 d8Q Rc1 Qd6 Ra1 Nd8 Nb1 Rcc5 Bcf6 Qd1 Bc3 Rcd5 Bb3 Qde1 Bd1 Qd2+
R2bN2b/1rQN1r1n/2N1R3/5pNb/BN1Q2bQ/r1BQKnnq/6kN/8 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 h4 Kf6 d4 Kf5 e4+ Kf6 b4 c5 h6 g5 h7 a5 h5 c4 b6 f3 e5+ Kf5 h6 Ke4 d6 f5 b7 a4 b5 g4 b6 a3 e6 a2 d7 c3 d5 c2 e7 Ra3 e8N Nf6 d6 Qc7 d8N Qc3 d7 Na6 b8N Be7 b7 Nc5 Bd2 c1R Nbc6 Rf8 h8Q Nh7 b8N Rf7 Ne6 Bb7 Bb5 Bd8 Ba4 Ba6 Be1 Be2 Ng5+ Kf4 Qf6 Rc2 Rh2 Rb2 Qd3 Rb7 Rh5 Qb3 Bc3 Bd1 Qfd4+ Ne4+ Kf1 f2 N1f3 g3 Nh2 Bg4 Rh4 Bc7 d8Q Ba5 Kg2 f1B+ Kg1 g2 Nd7 Be2 Q8b6 Nf8 h7 Bd1 h8Q Nh7 Qbc5 Bd8 Rh6 Bh5 Re6 Bdg4 Qdf6 Ng3 Kf2 g1N Qh6 Nf3 Qhd4+ Ne4+ Ke2 Kg3 Ke3 Kg2 Qe7 Bg6 Qh4 Ng3 Qed6 B6h5 Qc7 Qd1 Nd6 Qh1 Ne8 Rab3 Na3 Qf1 Re1 a1B Nc2 Ra3 Rb1 Qh1 Rb6 Bb2 Ra6 Ba1 N2b4 Bb2 Nf1 Qh3 Nh2 Ba1 Be1 Bc3 Ra8 Bb2 Qd5 Bg7 Qd4 Bh8 Bc3
7Q/1b2rQQQ/2Rq2Bn/1kQ1b1qb/2bbR3/RN2B2K/1R2QN1p/3rn3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 f5 Kg2 h5 d4 a5 b4 c5 e4 f3+ Kh3 h4 e5 c4 e6+ Kc7 e7 Kb6 e8R f2 g6 f4 g7 f3 d6 a4 d7 c3 d5 c2 d6 a3 g5 a2 g6 Nc6 Re4 Nb8 Nd2 Bb7 Nb3 Qf6 d8Q+ Ka7 d7 Rh7 Be3+ Qb6 Qc7 c1Q d8Q Nh6 g8Q Qbc5 g7 Bd6 Bd3 Nc6 Qgf7 Ne5 Qh8 Rd8 g8Q f1B+ Qg2 f2 Qe2 Nf3 b6+ Ka8 b5 Ne1 Qcd7 Be5 Qdf5 Rg7 Qfh7 Qd6 Rh2 Qcc5 Rc1 Qcd5 Rc6 a1B Rh1 Bad4 Bc2 Ba6 b7+ Ka7 b8R+ Bb7 Rh2 Q5c5 Rbc8 Qcd5 Rc3 Rd7 R8c6 Re7 Bd3 Rg8 Bb1 Rd8 Rd3 Rdd7 b6+ Ka6 Bc2 Kb5 Bb1 Ba8 b7 Q5c5 b8Q+ Bb7 Qa7 Qcd5 Qeh5 Be2 Qgg7 f1B+ Rg2 Bf3 Rdc3 Bc4 Rb2 Bd1 Qe2 Q5c5 Nf3 Rd8 Nh2 Qcd5 Ng4 Q5c5 Qg2 Qcd5 Nf2 Bh5 Q2g4 Rdd7 Qe2 Rd8 Rf4 Q5c5 Bg6 Rdd7 Kh2 h3 Kg3 h2 Kh3 Bf6 Re4 Qg5 Ra6 Bfe5 Ra3 Bd3 Rc8 Bc4 Rc6 Qc5 Qfg8 Bc3 Rf4 Rd1 Re4 Bcd4 Q8f7 Qd6 Qc5+
N1b2nkn/1n1BQ2q/R1Nb4/4Q1nN/Np2R1R1/4nN2/K2R1B2/N1rq3r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 c5 d4 g5 Kd2 b5 Kc2 e5 Kb2 e4 a4 g4 a5 g3 d6 c4 d5 g2 f6 e3 a6 e2 f5 e1N h6 b3 h5 b4 h7 Nc2 a7 Qc7 d7 Bh6 d8R Bf8 d6 Ne7 h6 Ng6 d7 Ne7 Ra6 Nd5 Qe2 Nc3 Be3 Na2 Rh4 Qc6 Bf2 Na3 Nd2 Qe6 Re4 Qd5 Ngf3 g1N Bh3 Nc1 Rg4 Be7 Qe5 Nd3+ Ka1 b2+ Ka2 c3+ Nb3 Qb7 Na1 c2 Re8 c1Q d8R Nc5 Rd2 Bd6 Re6 Kf8 f7 b1N Re7 Rg8 h8N Nbd7 h7 Qd1 Re6 Rb8 a8N Ne2 Re7 Nc2 Re6 Nf6 Ng6+ Kg7 h8N Nf4 f8N Ne3 Nf7 Rh8 Re7 Kg8 Ne6 Nfd7 f6 Nf8 Nfd8 Rh6 Re8 Qh7 Nc6 Nb7 Nc5 Rh4 Na4 Nc3+ Kb2 Ne4 Ka2 Ng5 Re7 N4e6 Nf4 Ng6 Nh5 Nh8 f7+ Kf8 Bf1 Rh1 Be2 Bd7 Bd3 Rc8 Bb5 Rc7 Nb8 Bc8 Bd7 Rc1 Nc6 Qf5 Nf6 Kg7 Nh5+ Kh7 f8Q+ Qf7 Qd8 Nf8+ Re6 Kg8 Qe7 Qg7 Q5f6 Qh6 Ree4 Qh7 Qfe5
1Q1b1Bn1/QRN1rb1B/2b5/K1BB3n/RpN2Nbq/B2b3k/2r3q1/2N3B1 b - - 0 1 illegal: No proof kernel
b1R1Q2B/Bq1N1Bbp/k1q1RBb1/5Q2/2b3N1/K3bn2/2rBrN2/NBn5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 g4 f5 b4 a5 d4 c5 Kd2 Kc7 Kc3 Kb6 Kb2 f3 d6 c4 e5 a4 d5 c3+ Ka3 f2 d7 c2 d6 f4 e6 f3 e7 Nc6 e8Q Qc7 d8B Ka7 d7 Bg7 g6 Nf6 g5 Nd5 b6+ Kb7 b5 Bh6 g7 Nc3 g8B Ne7 g6 Nf5 g7 Ng3 Qd3 Nge4 Nh3 Qf4 Bd2 Qb8 Bf7 Ne2 g8N Nc1 Bf6 Be3 d8B Bf5 Nh6 Ng5 Ng4 Bg6 Qf5 Ra5 Bd3 f1B Rh2 Bg2 Nhf2 Rf8 Rh6 Qc8 Nd1 f2 Bh8 f1B Ndf2 Nf3 Bdf6 Qc6 Be4 Bc4 Ra2 Bh1 Rb2 Rg8 Rb3 Ra8 Rc3 Rc8 Bd3 Kb8 b7 Ka7 b8N Qb7 Nd7 Rf8 b6+ Ka6 Kb4 a3 Be4 a2 Na3 a1B Bd3 Qe4 b7 Rc7 b8B Qb7+ Ka4 Rg8 Ba7 Rc8 Qd8 Re8 Be4 Re5 Qe8 Bf1 Rh5 Ng1 Bd8 Bc5 Rg3 Qb2 Rd3 Nb3 Qf3 c1Q Qf4 Qcc2 Bf5 Ba8 Rc3 Nf3 Rg5 Qcc1 Bb1 Bfd3 Rf5 Re2 Re5 Be3 Re6+ Rc6 Bg5 Qcc2 Qf5 Nc1+ Rb3 Qcc3 Rb8 Qb7 Nc2 Qc5 Be7 Bg7 Bf6 Qd6 Na1 Rc2 Rc8 Qdc6+ Ka3 Bb5 Bb2 Bc4 Bf6
NB1B1r1R/nq1Q1r1B/3b3q/K2b4/B3R1R1/b1B3n1/1BRq1p2/1kNQb3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 e4 Kd6 d4 c5 Kd2 f5 Kc3 a5 h4 g5 e5+ Kc7 h6 Kb6 e6 g4 d6 f3 h5 c4 d5 g3 d7 g2 h7 f4 e7 a4 e8B a3 d6 a2 h6 f2 Ne2 g1Q Rh4 f3 Bb2 Ra7 Na3 Qg2 Rg4 Bb7 Rc1 a1B Rc2 Nf6 Nc1 Nc6 Bd3 f1Q Bdg6 Rg8 h8R f2 h7 Nh5 Be4 Qh4 d8R Qhh1 d7 Qe2 Rb8 Bd6 d8B+ Bc7 Bd3 Rf8 Re4 Qg5 Rg8 Qgg2 h8B Ng3 Rgg4 Qh6 Ra8 Ra6 Rc8 Na7 Bd7 Bd5 Bhf6 Kb7 b6 Bd6 Nb5 Qgf3 Nc7 Qed2+ Kd4 c3 Na8 Ra5 Ba4 Rb5 Bg7 Ka6 b7 Qf7 b8Q Qb7 Qc7 Rf7 Qe7 Rf8 Rc4 Rb6 b5+ Ka5 Rc7 Kb4 Rc8 Rc6 b6 Rc7 Qe6 Rcf7 Qd7 Qe1 Rce2 c2 Bc3+ Ka3 Rb8 Qa6 b7 Qed2 Rc8 Qc6 b8B Qb7 Bgf6 Bc7 Kc5 Bf4 Nb3 Ka2 Nc1+ Kb1 Bb2 Bc7 Bfc3 Bf4 Bdb5 Bc7 Kb4 Be5 Ka5 Bd6 Nb3+ c1B Ba6 Qd3 Rc2 Qdd2 Bd3 Qdg5 Qe2 Bd2 Nc1 Be1 Qd1 Qd2 Rcc4 Ba3 Rg8 Bd6 Rh8 Ba3 Rg4 Bd6 Bh7 Ba3 Rce4 Bd6 Ba3 Bb2 Bab4 Ba3 Bb2 Qde3 Bd2 Qef4 Bb4 Qd2 B4c3
2qQ1R2/4R1n1/1n2qb1N/1qr1NRB1/B2K1RB1/4r2b/qNBB1p1N/k3n3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 Kd4 g6 f5 e5 a5 g5 c5 b6 h5 e6 a4 b7 a3 b5 c4 d6 h4 e7 f3 e8B c3 b6 h3 g7 a2 g6 f4 d7 h2 Bh3 c2 Nc3 Kd3 Na4 Nh6 g8B Qf6 d8B Qe7 g7 Qb4 Bg5 Qe4 Nb2+ Kd4 Bb3 Qe6 g8N Be7 Bea4 Nd7 b8R Bf6 b7 Nf5 Bg4 Rh3 Nh6 Ng7 d3 Kc3 d4 Nb6 d5 Rg3 d6 Ra5 d7 Rc5 d8N Rh3 Rb1 a1Q Nc6 Qa2 Qd8 Rg3 Be3 c1N Bc2 Rh3 Ne5 Nd3+ Kf1 f2 Ke2 Bd7 Rf1 Ne1 Ngf3 Rg3 Rhg1 h1Q Nh2 Qhc6 Bc1 f3+ Ke3 Qb5 Ra8 Qa6 b8R Qc8 Ra5 Rh3 Rb5 Rg3 Rb4 Rh3 Rf4 Rg3 Rg2 Rh3 Rfg1 f1Q Rf2 Qb5 Re2 f2+ Ke4 Kb4 Kd4 Ka3 Bd2 Re3 Rh1 Qab3 Rg1 Ka2 Rg3 Ka1 Rgf3 Qa2 Rf5 Bc6 R3f4 Bg2 Qd7 Qcc6 Rf8 Bh3 Qd8 Be7 R5f7 Qcc8 R4f5 Bf6 Re7 Rec3 Re4 Re3 Ref4
3B2BN/1QKnRN2/3n1Q1N/1kb4r/b4Q1Q/1rR4N/1n2pbQ1/1qQ2b1q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kc4 c5 g4 a5 b4 e5 f4 e4 d4 e3 b6 h3 Kb5 c4 g5 a4 g6 h2 g7 c3 f6 a3 f5 a2 d6 c2 d5 h4 f7 h3 b7 Rh7 f6 Rh4 Nc3 Ra7 Nce2 Na6 b8Q Rc4 Ng3 Rh4 Bc4 e2 Nf5 Rh6 Qb7+ Nc7+ Kb6 Qe7 b5 Qe4 Bg5 Be7 f8Q c1Q f7 Qd2 Rc1 a1B Rc3 Qb2 Qc1 Rh5 Nh6 Nf6 g8Q Qbb1 Qfg7 Ra3 f8N+ Ke8 Q8h8 Rb3 Ng6+ Kd7 Qhh7 Bb2 Nh8 Ba3 Bh4 Bb4 Qg2 Bc5+ Ka5 Bf2 b6 Qf3 Qe4 Bf8 Qef4 Qfe4 Qa6 Be7 b7 Nce8 b8Q Bb7 Qba8 Bc6 Qb8 Ba4 Qbb7+ Kd8 d7 Bec5 Qe6 Nd6 Qeg4 Ke7 d8N+ Ke8 Ndf7 Nd7 Bd8 Qh7 Nf3 Qhe4 Rf1 h1B N3g5 h2 Qh4 Qf3 Nh3 Qfe4 Qgg3 Bg2 Rg1 Bf1 Qg2 h1N Ka6 Nb6 Ka7 Qh7 Kb8 Nd7+ Kc7 Bfd4 Qfg5 Nf2 Qgf4 Nd3 Rh1 Nb2 Qhf6 Nc8 d6 Bg1 Ne5 Qhe4 Bg8 Bgf2 Nef7 Qf3 Qgh2 Qg2 Rg1 Qd5 Rg7 Qh1 Qhg2 Bg3 Q6h4 Ne5 Rg5 Be1 Bf6 Bef2 Rgg3 Ng4 Bg5 Nf6 d7+ Ke7 d8Q+ Ke6 Qdd4 Nd7 Bd8 Nd6 Qc8 Rf5 Rgf3 Rh5 Qdf6+ Kd5 Rce3 Bd4 Re7 Bde3 Qd2+ Kc5 Qc1+ Kb5 Qa8 Bd4 Rc3 Bc5 Qab7+
5NRb/r2q1qB1/1NkN4/3nrN2/2R4Q/1B1r2Qn/1Nprb2N/2nQK1Q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 g4 e5 g5 c5 b6 a4 b7 c4 b5 c3 f6 c2 f5 e4 f7 h3 f6 e3 b6 e2 d6 h2 g6 a3 d5 h4 g7 a2 Na3 h3 Bh6 Qe7 Nc4 Qe5 Nf3 Qd4 Nb2 Ra7 Rg1 h1R Nh2 Na6 b8N+ Kd8 b7 Ne7 g8Q Be6 d7 Kc7 d8N Bg7 f8N Bg4 f7 Nc5 Nfd7 Nb3 f8N Nc1 Nf7 Rh7 Nd6 Bh8 Rb1 a1Q Nb6 Qa2 Bg7 Ra3 Ra1 Rd3 Nc6 Qda4 Nd4 Qd7 N4f5 Rd2 Kf2 e1R+ Be2 Qc4 Ra4 Rd3 Bf3 Re5 Be4 Bh5 Ke1 Be2 Rb4 Rd2 Bd3 Qa2 Bc4 Rd3 Bb3 Rd2 Nf1 h2 Rbg4 Rh3 Rh4 Rhd3 Rc4+ Nc6 Rg2 Rg1 Rg3 h1N Rg5 Rg2 Nh2 Nf2 Rgg4 Nh3 Rg3 Kb8 Rgg4 Ka7 b8Q+ Ka6 Qc7 Ne7 Qc5 Rgg3 Qg1 Ka7 Nb7 Ka6 d6 Kb5 Rg5 Nd5 Rg6 Qf7 d7 Qa4 d8Q Rge3 Qdg5 Re7 Q5g3 R3e5 Qh7 Qa7 Qhh4 Qa4 Nc5 Ra7 Rg5 Kc6 Ne4+ Kb7 Rg4 Qad7 Ned6+ Ka6 Bf6 Ka5 Rg8 Ka6 Bg7 Ka5 Ne4 Kb5 Ra4 Kc6 Ned6 Ra6 Rb4 Ra7 Rc4#
RR1NN3/r2BB3/r1nNq3/n2k1r2/RBb1n1Kn/4qpB1/2R5/bQN4N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 h4 c5 b4 a5 d4 g5 e4 f5 b6 a4 e5+ Ke7 e6 Kd6 b7 a3 h6 a2 e7 c4 e8N+ Ke7 b5 c3 h5 c2 h7 Bh6 d6+ Ke6 b6 Qf6 d7 Qd8 d5+ Ke5 d6 Ra7 Bb5 Nc6 b8R Nf6 b7 Ne4 Rh2 Bg7 h6 Qb6 d8B Be6 d7 Bc4 Bd2 c1Q Nh3 Kd5 Bb4+ Qd2 Nf2 g4+ Kg2 g3 Kh3 g2 Bde7 f3 d8N f4 Kg4 g1N Nh1 Qdd4 Nd2 f2 Nb3 f1R Rc2 Nf3 Qb1 Nh4 Nc1 Qe3 Ra8 f3 b8R Rf8 h8B Rf5 h7 Qa6 Ba4 Qc8 Bb5 Qe6 Ba4 Bc3 Be5 Ra6 h8N Rg1+ Kh3 Rg7 Bg3 Rgf7 Kg4 Bf6 Bed6 Rfa7 Be7 Be5 Nhf7 Bh8 Nfd6 Bf6 Qb3 Bh8 Rb1 a1N Qa2 Nb3 Ra1 Bg7 Qb1 Nba5 Ra3 Ba1 Raa2 Nd4 Bd7 Ndc6 Ra4
R1B1qNRN/Rr1q1BQr/3B1b2/2Rb4/2rNrn2/p1knNK2/3B1B2/6q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 g4 Kd6 d4 c5 f4 e5 b4 a5 f6 h5 g5 c4 b6 h3 f5 h4 g6 a4 g7 e4 b5 e3 f7 c3 f6 c2 b7 h2 b6 h3 Na3 Ra5 Kf3 e2 Nc4+ Kd7 d6 Kc6 d7 Kd5 Ne3+ Ke6 d5+ Ke5 d6 e1R Ba6 Rb5 Ne2 Rh4 Nd4 Ne7 g8B Qe8 d8R Nd5 d7 Be7 f8B Rh7 f7 Bf6 Bc5 Nf4 f8N Nc6 b8R Nb4 b7 Nbd3 Ra8 a3 Bf7 Re2 Qg1 Re1 Qg3 Rb6 Rg1 h1Q+ Qg2 h2 Ra7 Rb4 Bb6 Rc4 b8B+ Rc7 Rb1 Re2 Rb4 Re1 Rc4 Bb7+ Rc6 Ba8 Bc8 Re2 Rf1 Qg1 Qg7 h1R Rf2 R1h4 Rg2 Rg4 Ba5 Bb7 Be1 Rgh4 Bf2 Qd1 Bb2 c1Q Rg1 Qb1 Bc1 Qb5 Rg3 Qg1 Rg6 Rc2 Rg4 Rc4 Rg6 Nd5 Rc5 Re4 Rg3 Qe7 Re8 Ba8 d8N Qd7 Qh8 Bc6 Rg8 Bb7 Qg7 Ba8 Rc6 N5f4 Rc5+ Bd5 N8c6+ Kd6 Ne5 Qee6 Neg6 Qe5 Rd8 Qe8 Nh8 Ke5 Nde6 Qd6 Nd4 Rb7 Ra8 Qc7 Rd6 Qcd7 Rda6+ Qc7 R6a7 Qd6 Rc7 Qdd7 Rc5+ Qc7 Ne2 Qd6 Ng3 Kd4 Ngf5+ Kc3 Nd4 Qde7 Bd6 Q7d7 Bd2+
b4Q1B/Rn2n1r1/rNqq2N1/B5BR/2B3pN/1nN1r2R/R1K4n/k1b3B1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 Kf6 b4 c5 d4 a5 Kd2 e5 d6 g5 h5 a4 d7 g3 d5 e4 d6 a3 h6 g2 h7 g4 b6 c4 b5 e3+ Kc2 e2 b7 e1R b6 c3 Rh3 a2 Qf3 Qc7 d8B+ Ne7 d7 Bh6 Bc4 Ra6 Be3 Nc6 b8R Rf1 b7 Rg8 h8B+ Bg7 Ra8 Qe5 b8R Bb7 Ba5 Re1 d8B Qd6 Ra7 Ba8 Bc5 Re3 Rb2 Qe5 Qf1 Qd6 Nf3 g1N Nh4 Nf3 Qf2 Nh2 Qf3 Re6 Bg1 Re3 Qf2 Nb8 Qf3 Nd7 Qf1 Nc5 Qf3 Bd5 Qf1 Nb7 Qf2 Kf7 f6 Ke6 f5+ Ke5 f7 Kd4 f6 Bh6 f8N Rg7 f7 Bg2 Nfg6 Bf4 Kb3 c2+ Nc3 c1Q f8N Bd5 Rab1 Bg2 Nd7 a1N+ Ka4 Bd5 Nb6 Nb3 Qf1 Bg5 Qf8 Qc2 Rf1 Bg2 Rf7 Qe4 Rf5 Qec6+ Rb5 Na1 Nc8 Qcc7 Rc5 Nf5 Be7 Nd8 Rb6 Ba8 Nb1 Bf6 Ng2 Nb7 N2h4 Qcc6+ Rbb5 Be5 Bf6 Ne7 Nb6 Ke4 Rd5 Bb2 Rh5 Bc1 Bg5 Kd4 Bf7 Kd3 Nc3 Kc2 Bd5 Qe5 Kb4 Kb2 Bc4 Nc2+ Ka4+ Ka1 Kb3 Qed6 Rb4 Ne1 Rb5 Nef3 Kc2 Nd2 Rb2 Nb3 Ra2#
1n1N1RKN/qBN2n2/2bRr1n1/q4rRp/7B/2B2k1N/N1n3B1/1qb3RQ b - - 0 1 illegal: No possible last move, all moves rejected
RB3bB1/nRn3kq/N1bR4/1N1p1RQq/K6n/B2bBr2/1r1nR2Q/5R2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 a5 Kc2 g5 Kb3 e5 h4 e4 f4 g4 h6 d6 h7 e3 f6 e2 f5 e1N b6 d3 b7 d2 c5 g3 c6 g2 c7 Bd7 c8R Nf3 h5 Nh6 Nh3 g1Q Rh2 Nc6 b8R Nh4 Na3 Qg2 Bc4+ Qd5 Re2 Ng2 Qg1 Nb4 Nf4 Bg7 Rb7 Nd3 Rc6 Rb8 Ne6 Qg8 Nb5 Ng4 h6 Ndf4 Ka4 Ne5 b4 Bf8 Nc5 Nh4 Qg5 Ne6 Na6 d1B+ Bb3 Qg6 Be3 Bc2 Rf1 Nc7 Rcb6 Rg8 h8R Bd3 h7 Nc6 Ba2 Rg7 Rg8 Na7 h8Q Bc6 Bc4 Nf3 Qh2 Nh4 Rh8 Rg8 Rh5 Rh8 Bb3 Kg8 f7+ Kg7 Bc4 Rg8 Rh8 Qf3 Be6 d5 Rh5 Bd6 f8R Be7 Re8 Rf8 Bg8 Rf7 Rc8 Bf8 Rd8 Be8 Rbd6 Bc6 Qgf4 Qh7 f6+ Kg6 Rf5 Qfh5 Kb3 a4+ Ka3 Re7 f7+ Kg7 Re8 Re6 Qg5+ Rg6 Kb2 a3+ Kb3 a2 Ka4 a1N Red8 Kh8 Re8 Nb3 Red8 Bg7 f8B Rf6 Rc8 Nd2 Re8 Rd8 Be7 Rd7 Ra8 Rf7 Bf6 Rd8 Bb2 Rb8 Ba3 Bf8 Rb6 Rc8 Re5 Be8 Rg6 Rf3 Rf5 Ne6 Rgf6 Bf7 Nbc7 Bg6 b5 Kg7 Rbb8 Re8 b6 Rc8 Nb5 Rc2 b7 Nc7 Rd6 Rb2 Qgf4 Be8 Qg5+ Q5g6 Rb6 Bd7 Rd8 Be8 b8B Bc6 Rb7 Qh5 Rd6 Qh7 Qd8 Qgh5 Qg5+
K1B5/3bb3/N1N3bN/NnRp1N2/qqR5/2nnN3/1rQrk1R1/B1Q3nR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 b4 d6 h4 g4 c4 a4 c5 a3 b6 e4 h6 e3 h5 e2 c6 e1Q h7 g3 b5 d3 c7 g2 b7 d2 b6 a2 h6 Bg7 Qc2 d1B Bb2+ Qc3 Nf3 g1N Na3 Ra4 Ba6 Qe8 Nd2 Qg6 Nac4 Be2 Nb3 Qg3 Ne3 Bd1 Na5 Nc6 b8N Qg5 b7 Qg3 Rc1 Bf8 Ba1 Na7 Nbc6 Bg4 b8N Bb7 c8Q Kf7 f6 Qb4 f5 Be7 Rh2 Nb5 Rg2 Ba8 Bb7 Qh4 Na6 Bh5 Qc7 Bg6 Bc8 Kf8 f7 Nf6+ Ke6 Ne4 Kd5 Rg8 h8N Ra3 h7 Rb3 Nac4 Rb2 Na5 Kg7 f8R Kh6 f6 Kh5 Nf7 Rg7 h8R+ Rh7 Nh6 Nec3+ Ke6 d5 Kd7 Qa4 f7 Qhb4 Re8 Bb7 f8N Rf7 Rd8 Rf2 Ne6 Rd2 Ng7+ Kh4 Rdf8 Kh3 Rf4 Ba8 Rh2+ Kg3 Rc4+ Kf3 Ngf5 Bb7 Rh1 Ke2 Rg8 Bc5 Nce7 Bc6+ Kd8 Bd7 Nec6 Na7 Qf4 Be7+ Kc7 Nab5+ Kb7 Rb1 Bb2 a1N Ka8 Nb3 Ba1 Nc5 Qc7 Nd3 Rc5 Bge8 Rg4 Bg6 Rgc4 Nf3 Rcg1 Rb2 Rg2+ Nf2 Qg3 Ng1 Qh4 Kf3 Nb7 Nd3 Qe1 Bh4 Qec1 Be7 Rg3+ Kf2 Nba5 Ke2 Rg2+
7Q/KNn1Rq2/nB1B1p1r/2q1nQ2/k2RrR1b/2NB4/3RB2n/1B2Bb1q b - - 0 1 illegal: No possible last move
r1N3B1/1r1kb1p1/2Q2Q2/1B2q2b/R2b1rnB/1RBK1B2/R1Bb1Nnq/7R b - - 0 1 illegal: No possible last move, all moves rejected
1Nr4k/B1N2p2/1R1QRbB1/q1r1RRNB/6KR/3r2n1/2b1r1NB/3b1qn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 d4 a5 e4 a4 b4 a3 h4 a2 b6 c4 b5 c3 h6 c2 h5 Qc7 h7 Ba3 b7 Kf8 e5 Kg7 d6 Ra7 b6 Bf5 d7 Nc6 b8N Qd6 d8N Qd7 b7 Bb4 h6+ Kg6 d5 Ra5 d6 Qe6 d7 Bf8 Nc3 Rc5 Nb5 Qf6 e6 Na5 e7 Rc8 e8B Ne7 Ne6 Bg7 d8R Nac6 Be3 c1R Bd7 Bc2 Rh4 Nd4+ Kg4 f3 Nbc7 f2 Nf3 Nef5 Be2 f1B Re8 Ng3 Ne1 Nf3 Ng2 Ng1 Rb1 a1Q Ba7 Qa5 Qd6 Rg8 h8B Kh7 Rb5 Re1 Bf3 Be2 Rf5 Bed1 Bc6 Rf8 Be4 Re2 Re5+ Kg8 Bg6 Rd8 Rf5 Rd7 Re7 Rc8 Rh5 Qfa1 Rh4 Bd4 Be5 Rdd8 Bf4 Kh8 h7 Bf6 Rh6 Nf1 Bh2 Ng3 Nba6 Qb1 b8R Qc1 Rb6 Qca1 Qe5 Rd3 Nb8 Nh3 Nh4 Nh1 Qd6 Bb2 Kh5 g4 Nc5 Kg7 h8R Be5 Rhe8 Bf6 Ncd7 Qc1 Rd5 Qf4 Nf8 Kg8 Rf5 Kg7 Bc6 Qf1 Re3 Kg8 Nh7+ Kg7 R8e6 Kh8 Nba6 g3 Bf3 Rb3 Nb8 g2 Rd5 Rc3 Rc5 g1R Rf5 Rc6 R3e5 Rg3 Ng2 Rc5 Bg4 Rd3 Ng5+ Kg8 Rh7 Ng1 Kh4 Ng3 Rh5 Nf3+ Kh3 Kg7 Rh4 Kg8 B4h5 Ng1+ Kg4 Kg7 Rb7 Kh8 Rb6
K6R/npQ1N3/2B1B3/1k1B2rb/R6B/2BbnR1q/Brqb1N2/R3brQ1 b - - 0 1 illegal: No possible last move, all moves rejected
3K1BbQ/2R3B1/1p3nRQ/qn1QB3/1rBN1n2/1r3N1Q/2nrB3/b1krB3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 h4 b6 a4 e6 f4 g4 a5 c6 a6 g3 h6 b3 f6 b2 f7 g2 h7 Ne7 h5 Ra7 h6 Ra8 a7 Nd7 f5 Ba6 f6 Nc5 Na3 b1N Qf3 Be2 Nc2 Ng6 Bb2 Na3 Rc1 Bg7 f8Q+ Qe7 d3 Rd8 a8B Nf4 Bc3 Rg8 h8B Nd7 h7 e5+ Ke4 Kc5 Kf5 e4 d6 e3 d4+ Kc4 f7 Kd3 d5 c5 Rh6 c4 Bb4 Ne5 d7 c3 Bd6 Kd2 Qh3 Ng4 Bb7 Nh5 Ba6 Qg5+ Ke6 Bc4 Bb8 Qf5+ Ke7 e2 d6 e1N Re6 Bd4 Qh6+ Rg5 f8B Qa5 Rg6 Ngf6 Bhg7 Bg8 h8Q Nf4 Bc7 Rb5 Bd3 Rc8 Bb8 Rc4 Bc7 Rb3 d8B Ng4 d7 Rcb4 Be2 Be5 Bad3 Nb5 Na1 Bd4 Bce5 c2 Ke8 Qa2 Bh4 Qa5 d8Q Bc3 Qd5 Nf6+ Kd8 Bd4 Bf3 Bc3 Rb1 c1R Nc2 Ba1 Nd4 Rc2 Bfe2 Ra2 Rb2+ Kc1 Ngf3 g1R Bg3 Rc3 Rb3 Rd2 Rb2 Rcb3 Rc2+ Kb1 Rc4+ Nc2 Rc7 Rgd1 Be1 Kc1 Bc4
3N2B1/q1N1B2R/2q1nBN1/Q1nNnb2/2k2Q1p/2NB2bR/Kp6/2rN1r1q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb2 b5 g4 c5 a4 e5 f4 e4 f6 b3 f7 c4 g6 e3 f5 e2 a5 e1Q g5 h4 g7 b4 f6 Qde7 g6 Q7e2+ Qd2 Nh6 g8B Qh2 g7 Bb7 a6 Qe8 a7 Qe1 Bd3 Nf5 Nh3 Bc8 Nc3 Nh6 Nf2 Qe7 Be4 Nd7 Nfd1 Qg2 Rh3 Ng4 Ra4 Qf3 Qf4+ Nge5 Be3 Rb8 a8N Nc5 Ra7 Bf5 Nc7 Ne6 Ka1 b2+ Ka2 b1N Bc1 Rb5 Bb2 Nd2 Rb7 Rc5 Ra7 Kd7 d6 Nb3 d5 Qh1 Ba1 Rc6 Bb2 Nbc5 Ba1 Kc8 d7+ Kb8 d8N b3+ Kb1 Rh5 d6 Rg5 d7 Rg1 Kb2 Rf1 Ka3 Qd6 Kb2 Qd4 Ka3 Be7 f8N Bd6 f7 Qdg1 Ng6 Qf2 Nb1 c3 f8B c2 Be7 c1Q+ Bb2 Qcc2 Bd4 b2 Nbc3 Qc1 Ka2 Qfe3 Bh7 Qc2 g8N Qcg2 Nf6 Qc2 Ra6 Qeg1 Rb6+ Ka7 Bg8 Qe3 Rb4 Qef2 Ra4+ Kb6 Ra7 Qe3 Rb7+ Ka5 Ra7+ Kb4 Nfd5+ Kc4 Rb7 Ned3 Bdf6 Ne5 Nf7 Qcc1 d8Q Qc2 Qa8 Qef2 Qa3 Qa4 Nd8 Qfc2 Ne8 Qa7 Rc7 Qca4 Rd7 Rc8 Nec7 Qc6 Qa5 Nf3 Qg5 Bg3 Qf4 Ne5 Bd6 Rb8 Rh7 Rc8 Bde7 Ra8 Kb1 Qb8 Qb6 Ra3 Qa5 Qa7 Ne2 Rc3 Ka2 Rc2 Nec3 Rc1 Bd3+
bQ1N1K2/Q1N5/q4k2/BRQ2Q2/Q2n2p1/Qr1bqp1n/N1R1r1N1/2b2q1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 f5 h4 g5 b4 c5 e4 a5 d4 a4 d6+ Kf7 b6 a3 b7 a2 d7 c4 d5 c3 b5 c2 d6 Ra7 b6 Kg7 e5 Kf7 e6+ Kf6 e7 Ra5 e8N+ Kf7 h6 Rh7 h5 Ra4 Nc3 Ra5 Bd2 c1Q Qa4 Rg7 h7 Ra6 h8Q Qb1 h6 Ke6 h7 Ra5 Rh5 Qe1 Bg2 Qh4 Bh1 Qe7 d8Q Re5 d7 Nh6 Nc7+ Kf6 Nge2 Qe1 Rc1 a1Q Rc2 Ng4 Na2 Nc6 b8Q Bb7 Ba5 Nf2 Qa7 Qf1 Qc8 Ba8 d8N Re6 b7 Nh3+ Qf2 Qe8 b8Q Ba3 Qa7 Bc1 Qf8+ Rf7 Qfa3 Rg7 Ng1 Re2 h8Q Qee5 Qh7 Rd7 Qcb8 Rd3+ Qe3 Rb3 Qd3 Qe1 Qfc5 Qed4 Qe3 Qd3 Qd7 Qa6 Qdd3 Qe5 Qca7 Qd1 Qec5 Qf1+ Qf2 Qd4 Qe3 Qd2 Qd3 Re4 Ne2 Qde1 Nec3 Qd2 Nd1 Re2 Ne3 Qfd1 Kg2 g4 Kh2 Qc3 Ng2 Qd4 Qdb5 Qe3 Qf3 Nd4 Qfd5 f3 Kg3 f4+ Kh4 f2 Re5 f1B Kh5 Re1 Kh6 f3+ Kh7 Rb2 Kg8 Bd3 Kf8 Re2 Qbc4 Qdg1 Qe4 Rb3 Rb5 Qd1 Qcc5 Qf1 Qef5+
3BQ2n/7R/bB1N1BNb/K2kqp2/1rpQ2BR/4q2r/Nnq1N2B/3n2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 a5 d4 c5 Kd2 g5 Kc3 f5 e5+ Ke7 d6+ Ke6 h6 g4 d7 g3 h7 a4 h5 c4 b6 f3 d5+ Kf7 b5 f2 d6 Ke6 Kb4 a3 h6 a2 b7 g2 b6 Qe8 d8B Qc6 Be2 f1Q Be3 Qe8 Nc3 Qd7 Bg4 Qf7 Nge2 g1N Qd4 Qg7 Rh4 Na6+ Ka5 Qc1 b8B Nh3 d7 Nf2 b7 Qc2 Rah1 a1Q+ Na2 Qg5 Bb6 Ne7 d8B Nd1 Bg1 Ng6 Bd6 Ra7 b8Q Rb7 R1h3 Nc5 Rh2 Rg8 h8B Qe3 h7 Nd3 Bhf6 N3b2 h8N Bh6 Qa8 Rb8 Qc6 Ba6 Qe8+ Ne7 Ng6 Rh8 Ba7 Rb4 Bab6 Bg5 Rh7 Bf4 R2h4 Bh6 Qf4 Kd5 e6 Nc8 Bd6c7 Nd6 e7 Nf7 Qf2 Qac1 Bch2 Qe5 Qf8 Qce3 e8N Rg8 Nd6 Nh8 Qe8 Rg7 Nf8 Rg5 Ng6 Rh5 Qf4 Rg5 Bh5 Rg3 Bg4 Rh3 Qd4+
1Q4rB/q2nNRQ1/R2rQ1Qp/6n1/R1R2K2/1n4Nb/1Rp1Bb1R/1bk1q3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 d4 c5 g4 e5 b4 a5 f6 h3 f7 c4 g5 h2 b6 a4 b5 e4+ Kf4 a3 g6 h6 g7 a2 b7 e3 b6 c3 Qg4 e2 Bb2 e1Q Qg6+ Nf6 g8Q c2 Ne2 Bg4 Ng3 Be7 f8R Qe8 Be2 Qd7 Nc3 Bh3 Rf7 Nc6 b8R Na5 b7 Kc7 d6+ Kc6 Nd5 Bd8 Ne7+ Kb6 f3 Nh7 d5 Kc5 Qe6 Kb4 Qgg6 Rf8 Bh8 Kb3 Rc8 Re8 b8R+ Nb7 Rc4 Ra6 Ra8 Qa4 d7 Rd6 Ra6 Bb6 d8R Nc5 Rb8 Nd7 Rb7 Ng5 Rb8 Rc6 d6 Rg8 Rb7 Ka3 Rb8 Bf2 Rb2 Ne5 d7 Rd6 d8Q Nd7 Qb8 Qaa5 Rg1 h1B Rg2 Qa4 Rh2 B1g2 Rab1 a1N Rbb4 Ka2 R1b3 Qa3 Rba4 Bf1 Rb1 Nb3 Rb2+ Ka1 Ra2+ Kb1 Rb2+ Kc1 R4a5 Bfg2 Rcc5 Rd5 Rf5 Rd6 Ra7 Rc8 Ne4 Qc3 Qe8 Bg1 Kg3 Qd2 f4 Bd4 Rc3 Qc5 R7a6 Na1 Ra4 Qa7 Rf8 Be3 f5 Nf7 f6 Ng5 f7 Bd4 Rc7 Qe1+ Kf4 Bf2 Ng3 Bd5 Rcc6 Ba2 Rcc4 Ne4 Rg8 Rd8 f8Q Bb1 Rg7 Nb3 Q8g6 Ng5 Rf7 Re8 Qfg8 Rd8 Q8h7 Rg8 Qhg7
n1brR1q1/RQ2BQ1Q/n1Bq2p1/8/2Bb2Br/3N4/2knQBKp/3b2BN b - - 0 1 illegal: No proof kernel
B7/nR1Q1N1K/2nrp2p/3Q4/Q3Rnkr/QQbN1R1b/1Qq2B2/b4Rq1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 a5 Kg4 c5 Kh5 a4 g4 h3 b4 h2 f4 c4 d4 c3 f6 a3 f7 h6 Kg6 a2 f5 c2 b6 Ba6 f6 Qc8 g5 Qd8 d6 Ke6 b7 Nc6 b8Q Qc8 d5+ Ke5 b5 Nd4 b6 Ne2 d7+ Ke4 d8Q Ra7 b7 Qc7 d6 Qc5 d7 Bb5 Be3 c1Q Nf3 Qc8 Bg2 Qb2 Na3 Ra5 Bf2 Qb1 Nc2 Qc4 Ne5+ Kf4 Re1 Qc1 Nb4 h1N Qa4 Bg7 f8Q Nhg3 f7 Nc3 Re3 Qg1 Rf1 a1B Qdc7 Nge4 d8Q Nef6 Qd2 Qe2 Qb2 Nh5 Qbd8 Qd2 b8R Bd7 Ba8 Nb5 Rb7 Bh3 Qcc3 Bf6 Qcb3 Na7 Qd6 Rb5 Qc8 Rd5 f8R Rd4 Re8 Rc4 Nf7+ Be5 Qdc5 Bc3 Qd8 Qc2+ Nd3+ Kg4 Rg3+ Kh4 Qca3 Rg4 Qdd4 Nf4+ Kg7 Kh5 g6 Rh4 Re3 Nf6 Qdd6 Ng4+ Qdd4 Rg8+ Kh7 Ne5 g7 Nec6 Rg3 Ba5 Qd7 Bc3 Ng5 Rf8 g8Q Rf6 Qgd5 Re6 Rf3 Rd6 Qc7 Kg4 Nf7 Na5 Rc8 e6 Qcd7 Qe2 Rc5 Qc2 Rc4 N5c6 Re4
2B2qQ1/2prR3/br1B4/kNB2p2/bb1nq3/1B1BR1Rn/q2N1R1B/2K1Q3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 g4 h5 d4 f5 Kd2 a5 b4 f3 g6 f2 e5 h4 g7 h3 b6 h2 g5 a4 d6 Kc6 g6 a3 b5+ Kb7 e6 a2 d7 Qe7 d8B Qh4 d5 Bd7 d6 Na6 e7 Qb4+ Nc3 Nc5 e8B Be7 Bd3 f1B Nf3 Qb1 Rg1 h1Q Rg3 Ra3 Qe1 Bf6 Be7 Nh6 g8Q Qb3 g7 Bc8 d7 Qh3 d8R Be6 Bd6 Qd5 Rd7 Ra6 Re7 Nf7 Bd7 Qe4 Rb1 a1Q Rb3 Rh7 Bc8+ Kb8 b7 Ka7 b8R Qh6+ Kd1 Ng5 Nd2 Qa2 Ba3 Nh3 Kc1 Bc4 Rb6 Ne6 Bac5 Bg2 Bg1 Bg5 Bh2 Nd4 Rc6 Rb6 Rb2 Rb7 b6+ Ka6 Nb5 Ka5 Rc5 Bf1 Rce5 Bb3 R5e6 Rb8 b7 Ba4 Rc2 Qf6 Rb2 Qf8 Rc2 Ra8 b8B Ra6 Ba7 Be2 Bac5 Rb6 Qh8 Bh6 g8B Bg7 Re5 Bf6 Bb3 Rf7 Re8 Rd7 Qg8 Be7 Rb2 Qf4 Ree3 Qe4 Be5 Bd6 Re7 Bf1 Ba3 Bb4 Bd6 Bc3 Bac5 Be2 Bdc2 Bc4 Bd3 Bb4 Nc3 Ba6 Nb5 Qf4 Rc2 Qe4 Nf3 Qf6 Rf2 Qf8 Nd2
2R1r2N/5RBb/B4Rr1/q1b2pbk/1rNn1Rn1/2N1N3/1NpQ4/BB2K1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 c5 h4 g5 e4 a5 d4 g4 e5 g3 b6 f6 b5 Kf7 d6 f3 h6 Kg6 e6 a4 d5 c4 h5+ Kf5 e7 Kg4 e8B a3 b7 g2 d7 c3 h7 a2 b6 Ra4 d6 Ra5 h6 Na6 b8N Qe7+ Ne2 g1B d8R Qa7 b7 Qd4 d7 Rg5 Rh4+ Kf5 Rf4+ Ke5 Ng3 Rf5 Nc6+ Ke6 b8N Qd5 Bb2 Bfc5 Na5 Nc7 Ba6 Rg5 Nc4 Rg6 Nf1 Nb5 Nfe3 Nd4 Qd2 c2 Nc3 f5 Nc6 Kf6 N6e5 Kg5 Bf7 Nf6 Nd3 Re8 h8B Kh5 h7 Ng4 Bg7 Qa8 Rd1 a1B h8N Bb7 Rc8 Bd5 d8R f2+ Kf1 Qa7 Rd6 Qc7 Rf6 Qa5 Bc1 Bb2 Bg8 Bba3 Bb2 Be6 Ba1 Bc1 Ndb2 Bf7 Kg2 f1R Kg3 Rf3+ Kg2 Rh3 Kf1 Rh4 Re1 Rg5 Re2 Bg6 Ke1 Bh7 Rg2 Rg6 Rf7 Rb6 Rf6 Rb4 Rg3 Rh2 Be6 Rg2 Rf7 Nh6 Rg6 Rg3 Rgf6 Rg6 Na3 Ng4 Ba2 Rh6 Bb1 Rg6 Nac4 Nf2 Rg4 Bf8 Qe2 Bc5 Ng2 Bf4 Nge3 Bg5 Rf4+ Ng4 Qd2
1BNb4/nk6/N3KpNr/5R1b/Bbnp1Nb1/1r1BBRnR/8/1Q1R2Rq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 d5 Kf3 Kd7 Kg4 Kc7+ e6 a5 Kf5 g5 e4 a4 h4 a3 c4 g4 b4 g3 c5 g2 c6 d3 e5 f6 h6 a2 h7 d2 h5 d4 h6 Ra4 Ne2 g1N Nf4 Ba6 b6+ Kc8 e7 Nh3 e8R Bb7 b5 Ng5 c7 Ba6 b7+ Kd7 c8N Kc7 b6+ Kc6 e6 Bb4 e7 Bc4 Nc3 Be2 Nb5 Ra3 Rg1 Ba5 Nc7 Ne4 Ke6 Rb3 Na6 Bh5 Bd3 Nd7 b8R Ne5 b7 Ng3 Qe1 d1B Be3 Bdf3 Rd1 a1B Ra8 Be2 b8B Nc4 Ra7 Qb6 Rd7 Qb5 Rd5 Beg4+ Rf5 Qb7 Qb4 Rc3 Qb1 Rb3 Rd8 B1c3 Rd5 Qa8 e8B+ Kb7 Ba4 Ne7 Re5 Nc6 Re4 Rg8 h8R Bcb4 h7 Bd8 Re5 Na7 Rc5 Nb2 Rc2 Rg5 Rf2 Nc4 Rf3 Rg6 Rg8 Ra3 h8N Rh6 Nhg6 Rb3 Rh8 Rh7 Nd6+ Kb6 Rff1 Qh1 Nc8+ Kb7 Nf8 Be8 Rf3 Rh2 Rh6 Rh4 Rg6 Rh7 Rh6 Bg6 Rh3 B6h5 N8g6 Rh8 Bf2 Rh6 Be3
N1B1bQB1/rk1n3K/pb6/2B1bBqR/4r1B1/QpR2r1R/3bn1R1/1N5B b - - 0 1 illegal: No possible last move, all moves rejected
2N2B1b/q3rB1p/1QQ1Q2Q/B1N5/3n1K1p/1rrk1n1R/1B3Q2/1br1Q1nR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 d4 e5 b4 c5 g4 a5 f4 c4 f6 a4 f5 c3 b6 c2 f7 a3 b5 a2 f6 e4 b7 Ra4 b6 Bg7 f8B+ Qe7 g5 Ra7 f7 Na6 b8Q+ Nc7 g6 Bf5 b7 Bd7 Nd2 Bc6 Kf4 e3 Nh3 e2 Ng5 e1R Bc4 Ra6 Qc8 Ra8 b8Q Bf6 g7 Re2 Ne6 Rh2 Qb6 Rb8 Qe1 Nh6 g8Q Re2 Rh3 Ng4 Bb2 c1N Nc5 Nh2 Qg7 Re5 Qh6 Nb5 Qba6 Nf3 Qe6+ Kc7 Qac8+ Kb6 d6 Be4 d5 Bb1 Nde4 Nbd4 Bb3 Kb5 d7 Rb6 d8B Qa7 d6 Rc6 d7 Nce2+ Ke3 Rg8 Ba5 Neg1 d8Q Bh8 Kf4 Rg3 Qa8 Rd5 Qdf6 Rd7 Qae8 Rcc7 Qed8 Re7 Nd6+ Kc6 Nc8+ Kb5 Nd7 Rc3 Nc5 Bc2 Rc1 a1R Ba2 Rb3 Qc6+ Kc4 Qdb6 Rg5 Rd1 Rc1 Qfe6+ Rd5 Rd2 Bb1 Rdh2 Rc3 Rh1 Rc1 Bg7 Rc3 f8Q Rc1 Qff5 Rc3 Bf8 Rc1 Q6e3 Rde5 Q3f2 Re3 Ne4+ Kd3 Qfd7 Rbc3 Bf7 Re2 Qg4 Rec2 Qf5 Rb3 Qfe6 Rcc3 Nc5+
B1bNk1B1/2n2r2/5N2/B4R2/2N1p1bq/K3Bb1q/B1p1n1rQ/1R1NB1bQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 h5 g4 e5 d4 b5 Kd2 c5 Kc2 c4 Kb2 b3 a4 b4 g6 h4 g7 h3 a5 e4 d6 h2 d7+ Ke7 g5 Nf6 g8B Nc6 a6 Nh7 f6+ Kd6 f7 Ke7 g6 Bb7 a7 Rb8 a8B Nf6 g7 Ne5 d5 Nc6 f5 Rh6 Ne2 Rh7 Nec3 Bc8 Be3 Nd4 Ra5 Ne8 Na3 Nc7 Qa1 Rb7 Nd1 Ne2 Rg1 h1B f6+ Kd6 Bh3 Bf3 Be6 Rh2 Re1 Qe7 d8B Rg2 Rh1 Qd7 Qa2 Be7 f8B Ra7 Bef7 Qh3 Re1 Kd7 d6 Qh4 Rf5 Rb7 Bd5 Qh3 f7 c3+ Ka1 Ra7 Nc4 b2+ Kb1 Bg4 Kc2 b1B+ Kb3 Bf6 Bfe7 Qh4 f8Q Bd4 Bf6 Qh3 Bh4 Bd3 Ref1 Bc5 Be1 c2 Qa1 Bf3 Qe5 Bb6 Qh2 Rb7 Ka4 b3 Ka3 b2 Qf6 b1Q Qh6 Ke8 Qh1 Qg4 Q6h2 Qh4 Rg1 Qb5 Bde6 Qd7 Bd5 Bd4 Rf1 Na6 Bda5 Qe6 Rg1 Rf7 Rf1 Nc7 d7+ Ke7 d8N Ke8 Ne5 Bb5 Ba2 Bbd7 Nc4 Qeh6 Rb5 Qe6 Rb1 Qeh3 Rf2 Bh5 Rf3 Bdg4 Rf5 Bf3 Bh7 Bhg4 g8N Ba7 Nf6+ Ke7 Bg5 Bg1 Bg8 Kf8 Be3 Ke7 Nd7 Ke8 Nf6+
NnKN3q/k4RN1/1NRq4/2b1Q2R/p1b2B2/1rp1rR1N/3n1Q1N/5Bbb b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 b4 Kb7 f4 h5 d4 a5 b6 c4 b5 a4 d6 c3 Kd5 e4 g5 e3 f6 h3 f7 h2 f5 e2 d7 e1B Ke6 h4 g6 h3 f6 Bd6 f8Q Rh6 g7 Rh4 d5 Bf4 f7 Be3 d6 Ra6 Nd2 Bg5 Qh5 Ra5 Ndf3 Ra8 Bf4 Be7 Qe5 Nf6 g8R Qc7 Rg6 Ne4 Rd1 Bd8 Rd3 Ra6 Rh6 Ka8 b7+ Ka7 Re3 Nc6 b8N Nd2 b6+ Ka8 b7+ Ka7 Rh5 Ra5 Na6 Nb3 b8N Qb6 Nc7 Rg4 Na8 Be7 Rd3 Bb7 d8N Bf2 Kd7 Nd2 Ne6 Rg3 Ng7 Ba6 Rh6 Bc4 Kc8 Bd4 d7 Bec5 d8N Rb5 Nd7 Nb8 Rc6 Rb3 Re3 Qb4 Ndb6 Qa3 Qh8 Qb4 f8R Qa3 Qh4 Qb4 Ng5 Qa3 Rd3 Re3 Qf2 Qb4 N1f3 Qa3 Rg1 h1B Rg3 h2 Nh3 Bg2 Rgg6 h1Q Rh6 Qh2 Rh5 Bh1 Nhg5 Qh4 Nh3 Qf6 Nh2 Qh6 Qg3 Qh8 Qe1 Rf3 Qg3 Bg1 Qf2 Re3 Rff6 Bd4 Rf8 Qd6 Rff5 Bc5 Rf8 Re1 Rf3 Re3 Rf7+
3nBb2/1Q1Bnb2/1BB4N/N3bpK1/1rp1R2R/r3B1k1/RpRNq3/N4r2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 f5 Kf4 b5 h4 c5 a4 b3 e4 g6 d4 b4 h6 b2 d6 Ke6 d5+ Kd7 a5 b3 h7 Qe8 e6+ Kd8 e5 Nf6 a6 Nbd7 a7 Nb6 d7 Kc7 d8N Nfd7 e7 Nf6 e6 Kd6 h5 Qa4+ Kg5 Ke5 e8B Nfd7 h6 Qa2 e7 Ke4 d6 Nd5 Rh2 Ne5 d7 Qa4 Rc2 Bb7 Nc6 Qc4 d8B Qe2 Nd2+ Ke3 Na5 Kf2 Bb6 b1R Ngf3 b2 Ne1 Kg3 Ra2 Nc6 Bd7 c4 e8B Rb8 a8R Nd8 Bg2 Ne7 Bgc6 Rg8 h8N Rg7 Bh1 Bd5 h7 Bf7 Bhc6 Rb7 Bg1 Rb4 Bb6 Qe4 Qh5 Qe2 Qh1 Rg8 Bb5 Rg7 Qb7 Ra1 Bbc6 Rb1 Kh6 g5 Rc8 g4 Rc7 Bd5 Nf7 Be6 h8R Rh7+ Kg5 Rh3 Nh6 Bf7 Bd5 Ra1 Rc5 Rh1 B5c6 Rf1 Ra4 Ra3 Re5 Kh3 Re4 g3 Rh7 g2 Rh8 g1B Rh7 Ra1 Ra2 Bd4 Ndb3 Bdg7 Nf3 Qh2 Ra4 Qe2 Ng4+ Kg2 Bce3 Ng6 Nfd2 Be5 Rh4 Kg3 Nh6 Ra2 Na1 Ne7 Rc1 Ra3 Rc3 Rab3 Ra2 Ra3 Rc2
B4N1r/1Nb5/k4RN1/p2qn1RB/1BQr1bb1/pK3R2/pR4B1/1nN1Rn2 b - - 0 1 illegal: Other
B3n1RN/rQ2pRq1/1B1BB3/1N1n2Q1/5rb1/2b1BRK1/2p1Rp1r/2nkB3 b - - 0 1 illegal: No proof kernel
6Q1/1pnB1b2/n1p5/1N1Q1QrR/3rR2K/Bp4Bn/4qbN1/QkBQQr2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 f4 Kf6 Kf2 e5 Kg3 g5 d4 b3 h4 c6 h6 g4 h7 e4 a5 e3 h5 e2 a6 e1R a7 Nd7 h6 Bb4 d6 Qe7 d5 Qe6 Ra4 Qf7 Bh3 Re6 Nf3 Bc3 Kh4 g3 Na3 g2 Re4 g1N Qe1 Bd4 Nb5 Nf8 d7 Re7 d8Q Qg6 d6 Qf7 d7 Rb8 a8Q Bb6 Qaa5 Qd5 Qac3+ Qe5 Bg4 Bc5 Qda5 Bd4 d8Q Ne6 Qd5 Nh3 Qd1 Ra8 Ne1 Rg7 Ng2 Ne7 Qaa1 Rf8 h8B Ra2 h7 Nc7 Qce1 Ba7 Qac3 Be6 Rh2 Rd2 Rh1 Kf7 f6 Kg6 f7 Rd4 f5+ Kf6 Rh2 Na6 Rh1 Rd8 f8Q+ Bf7 Qg8 Rf8 Qcf3 Nc8 Qff1 Nd6 Qfd3 Ne8 Qdf1 Nec7 Rh2 Ke7 f6+ Ke8 Bf5 Rg5 Bd7+ Kd8 Bg7 Qe8 h8Q Bb6 Rg4 Qe2 Re4 Bc5 Be8+ Kc8 Bd7+ Kb8 Qff5 Ka8 Na3 Ka7 Nb5+ Kb6 Bh6 Rb4 Bf4 Ka5 Bg3 Ka4 Rh1 Bf2 Rh2 Bg6 f7 Bh5 Qhc3 Rd4 Nd6 Ka3 Nb5+ Ka2 Rh1 Rc8 f8B Bf7 Ba3 Rf8 Rh2 Rg6 Bhc1 Rg5 Rh1 Kb1 Rf1 Be3 Rff4 Bf2 Rg4 Rg6 Rg5 Rg7 Rh5 Rg6 Qh1 Rg5 Qhe1 Bg6 Bc5 Be3 Qfe6 Rf1 Qef5 Bf7 B5a3 Bf2 Qa1+
1BQ1r1N1/p2R1n1B/1BK5/4RN2/3p1B1B/2n1pRbr/1qNk2N1/R3bq1b b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 g5 b4 d5 h4 d3 f4 g4 f6 d4 h6 d2 b6 Ke3 f7 g3 f5 g2 b5 Bd7 b7 Nf6 h5 Nd5 h7 Bh6 f8N e5 b6 e4 f6 Bf5 f7 Qd7 Qg4 Qe6 Bd3 Bf4 h6 Rg8 h8B Nc6 b8B Ne5 b7 Nc3 h7 Qg6 Nd7 Qe6 f8R Nc6 Na3 Bh6 Bf6 Ne5 h8R Nd1 Ne2 g1B Rh5 Rg7 Bc7 Qe8 b8B Qc8 Nf4 Bg6 Bh4 Bg5 Nf6 Bf2 R8h7 Qd8 Ng8 Be1 Qc8 Nc3 Bb6 Nf7 Kc6 Be7 c5 Bd6 Re5 Qe7 Bb2 d1Q Nc2+ Kd2 Ng2 e3 Ba3 Bf5 Bb4 Rg4 Rg7 Be6 Bh7 Rg3 B4a5 Qd8 B6c7 Rh3 Bab6 Ng5 Rd7 Nf7 Rh5 Bh2 Bf4 Bhg3 Re5 Ba2 Kb7 Qf3+ c6 Qf1 c7 Qe7 Kc6 Qb4 Qb7 Qb1 c8N Qb2 Nd6 Bc4 Nf5 Ba2 B8c7 Re8 Bb8 Bd5+ Kc7 Bef2 Qc8 Bb7 Nge1 Bh1 Ng2 Be1 Kc6 Ng5 Rf6 Nf7 Nd6 Bgf2 Bfg3 Qa3 Rf3 Qb2 Bf4 Bg3 Nf5
1K2R3/r1B1qB2/B1k1rp2/b3NR2/pR4N1/n1b1QR1n/N2Rb1p1/1bBN4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 g5 Ke4 c5 Ke5 a5 h4 a4 d4 f3 b4 c4 e4 f2 b6 c3 b7 g4 b5 g3 h6 c2 b6 g2 h5 Bb4 h7 Qf8 d6 Ra5+ d5 Bd2 h6 Ne7 Ra3 Nf5 Nc3 Na6 b8N+ Ke8 b7 Be3 d7+ Kd8 Qd3 Kc7 d8R Qb4 Nd7 Qf8 b8R Bb7 Nd1 Bc6 Rb4 Nh4 Ne2 Nf5 Rh5 Bc5 Nec3 Qg8 Qe3 Nd6 Nf6 Qg6 Na2 Nb5 d6+ Kb7 d7 Qg7 Rf5 Nc7 Rab3 Rf8 h8N Ne6 h7 Ra7 Ng6 Ng5 h8R Nh3 Bc4 Qh7 Ng4 f1B Re8 Bb6 d8B Be2 Bc7 Na3 Kd6 f6 e5 Qf7 e6 Be4 e7 Qh7 Rd8 Re8 N6e5 Qf7 Bb5 Ba5 Rd3 Qg7 Rd2 Qf7 Rf3 Qf8 Rh5 Qg7 Rhf5 Qh7 Bb2 c1B Ra8 Bb1 Rd8 Rf8 e8B Qg7 Bh5 Re8 Bf7 Re6+ Kd7 Qh7 Re8 Qg7 Rd5 Bd2 Bc1 Bc3 Rd2 Qf8 Bc6+ Ka6 Kc8 Qe7 Kb8 Qd7 Rbd4 Qe7 Bb7+ Kb5 Ba6+ Kc5 Ng6+ Kc6 Re4 Ng1 Rb4 Nh3 N6e5+
8/2R2n1p/1pnNqRrR/nN2NRBn/k1NQ1b1K/3BrRQ1/3pb3/6R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 g4 d5 f4 Kd7 Kf2 Kc6 Kg3 e5 a4 b6 c4 d4 g6 e4 g7 b3 a5 b2 f6 e3 g5 e2 f7 e1N a6 d3 a7 Nf3 g6 Bh3 f5 Nh2 f6 Na6 Na3 b1N Kh4 Qd5 Bg5 Rd8 a8N Qd7 Nc7 Qe7 Ncb5 Nh6 g8Q Be6 g7 Nb8 Nf3 Nd2 Ne5+ Kb7 c6+ Ka6 c7 Ka5 c8N Qa7 c5 Nc6 Ncd6 Qd7 Nac4+ Kb4 Rc1 Nb3 Rc3 N2g4 Qd2 Be7 f8R Ka4 f7 Re8 Qb2 d2 Rf3 Bf6 Qd4 Nba5 Bd3 Bd5 Rf5 Bf3 Rh2 Be2 Rh3 Ne7 c6 Qe6 c7 Nec6 c8R Bd8 Rff3 Nf6 Rc7 Nh5 Rf5 Bf6 Rhf3 Re7 Rd8 Re8 f8R Be7 R8f6 Nf7 Rh6 Bf6 Rdc8 Re7 Rf8 Re8 Ng6 Be5 Rf6 Bf4 Nge5 Re7 Rf5 Nfd8 R8f6 Nf7 Qb8 Ree8 g8R Re7 Rf8 Rg8 Rf1 Rg6 Rg1 Be3 Rf3 Bf4 Qc8 Qd5 Qh3 Qe6 Qg3 Qc8 Nd7 Re3 Nde5 Qe6 Rf5 Nfd8 R8f6 Nf7 Qe4 Kb3 Qd5 Ka4 Qd4
R3N1b1/2Nk1p2/4p1R1/1rb3N1/bp5N/R2BBB1n/1K1Qbr1N/1n1q1B1R b - - 0 1 illegal: No proof kernel
4B2R/1K1R1N2/1p2B1N1/1Nb1rkBr/3q4/nQ1p2q1/1Bpnp2R/1RNbR3 b - - 0 1 illegal: No proof kernel
BBrNBN1K/1rb5/3bn3/2bBQnRb/1R2n3/B2kBq1N/1B3B2/5nb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 c5 Kf4 a5 Kf5 g5 d4 c4 h4 c3 b4 g3 e4 c2 e6+ Kd6 h5 a4 e5+ Kc7 h6 Kb6 h7 g4 d6 g2 d5 f6 Kg6 f5 d7 f4 d6 f3 e7 a3 e8B f2 e6 g3 e7 a2 Qd5 Bb7 Bc4 f1N Nh3 g1B Na3 g2 Qe5 Nh6 Rb1 a1B Bd5 Qc7 d8B Ra5 d7 Ba8 Nc4+ Ka7 b6+ Ka6 b7 Kb5 Ba3 c1B Nb6 Nc6 b8B Nf5 Ba7 Qb7 Rb3 Bc5 Rg1 Bad4 Kf7 Rg8 h8B Bf4 Bc7 Bf2 d8N Bd6 Nd7 Ncd4 Bcb6 Ne6 Bc5 B4g3 Bab6 Ra7 Be3 Qc6 Kf6 Rb7 Bf7 Bc7 e8B Bc5 Nf8 B7d6 Be4 Kc4 b5 Bh2 Bf3 Bfg3 Rb1 Kd3 Rb4 Qe4 Bf2 Qf4 Bfc6 Qf3 Ba7 Bf4 b6 Bfe3 Bg7 Bc7 Kg6 B5d6 Kh7 Bec5 Rh1 g1N Be3 Nf4 Bfd5 Nge2 Rg1 Nc3 Rg5 Ne4 Bf2 Ne6 Bh8 Rb8 b7 Bg1 Bf6 Rg7+ Kh8 Rc8 b8B Bb7 Bb6 Ba6 Ba8 Re7 Ba4 Bb5 B6a7 Be8 B4c6 Bh5 Be8 B7b6 Bg7 Rb7 Bf6 Bbc7 Be3 Be7 Bf2 B5d6 Bae3 Bc5 Bg7 Bed6 Qf4 Bf7 Bgb2 Bh5 Qe5
1bN2Rn1/4N3/Rr3qqr/1RR2n1b/RK1p1R1N/1Q5R/3rkRb1/B4r1B b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 f4 d5 b4 e5 h4 a5 c5 g5 h6 d3 Kc3 d2 b6 a4 h7 e4 h5 e3 b7 e2 h6 e1Q c6 g4 c7 a3 b5 a2 b6 g3 Rh3 g2 Bb2 Be6 c8N Bf7 Rf3 Qh4 Qb3 Ne7 Kb4+ d4 Nc3 Bg8 Nd5+ Kf7 f6 Kg6 f7 Kh5 f5 Kg4 f6 Nf5+ Nde7 Nd7 b8R d1B b7 Ra3 Ra8 Qe8 b8R Ra6 Rb5 Rb6 Ra4 Qg5 Rc1 a1R Rc5 Ra2 Ba1 Rd2 Be2 Bg7 f8R Bd5 f7 Be5 Bc4 Be4 Bd5 Nf6 Bb7 Bb8 Ba8 Rg8 h8R Rg6 h7 Rh6 Rhg8 Be2 Rg6 Ng8 h8R Qd8 Rgc6 Qg6 Rh7 Qdd6 Rh8 Qdf6 Re6 Rb7 Rea6 Rb6 Rf4+ Kh5 Nf3 g1R Bd5 Rf1 Nh4 Bg2 Bc6 Bh3 Bh1 Bg2 Re8 Kg5 f8R Bh5 Rf3 Kg4 Rf7 Rdd1 Ref8 Rd3 Rh3 Kf4 Rf3+ Ke4 Rf4+ Ke3 Rf3+ Ke2 Rhh7 Ng7 Rf4 Rd2 Rf3 Qc6 R7f4 Nf5 Rg7 Qgd6 Rgg3 Qg6 Rh3 Qcf6 Rf2+
3q2N1/rn2R1Rn/R4pb1/2R2n2/n3RK1b/1R1N1RQ1/3k2B1/BqRr2Nr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 h4 Kd4 b4 a5 h6 c5 e5 g5 d6 f6 h7 a4 d7 c4 b6 c3 b7 a3 b5 c2 h5 a2 h6 Qe8 d8R+ Bd6 b6 Bd7 e6 Qg6 e7 Ra4 e8R Bc8 Rd7 Qf5 Nc3 Ne7 Qe1 Qe6 Bb2 c1R Qg3 Qf7 Bg2 Kd3 Nd5 Nf5 Re4 Qe8 Rde7 Nc6 b8R Nd8 b7 Ra7 Rh3 Qf8 Ra8 Rd1 b8R Nb7 Rc1 Qd8 Ba1 Be5 Kg4+ f3 Rg7 Bd7 Ne7 Be8 Ng8 Bg6 Rbc8 Bd4 R8c5 Be3 Rb8 f2 Ra8 f1Q Rge7 Ra5 Ra6 Qe1 Kf3 Bf2 Rg7 g4+ Kf4+ Ne3 Qh2 Qf1 Rf3 Bh4 Qg3 Ra4 Nh3 Ke2 d4 Kd2 d5 Nf5 d6 Qb5 d7 Qb1 Ng1 Ra5 Be5 a1N Re7 Nb3 Ba1 Nbd4 Rb3 Nf3 Rg7 Ng5 Rf3 Qc8 d8N Qa8 Nc6 Qd8 Nb4 Ra3 Qh3 g3 Nd3 Ra5 Rb6 Ra2 Rb3 Ra7 Ne2 Be8 Rd7 Re1 Rd6 Rg1 Ra6 Rd1 Bf1 Bg6 Nf2 g2 Qg3 g1N Nd3 Qc8 Bg2 Qd8 Ne7 Rf8 h8R Rf7 Rf8 Rh7 Rf7 Rh8 h7 Re8 h8R Nh7 Rea4 Ng5 Rhf8 Nh7 Ng8 Re3 Re8 Re6 Nd4 Ree1 Rg7 Rf1 Ree7 Ne2+ Ke4 Nc3+ Kf4 Rg1 Ne2 Rh1 Rae4 Na4 Ng1
nB3Rq1/3R4/5b2/pbpbRBn1/3k1rRR/KR1r1B2/N3QN2/1R1bnR2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 Kd2 Kf6 Kc2 h5 Kb3 a5 f4 c5 g4 e5 b6 h3 b7 h2 g5+ Kg7 d6 e4 f6+ Kf7 d5 e3 d7 e2 f5 e1N d6 h4 Nh3 Qe7 d8R Rh6 d7 Nf3 Qe2 Nd2+ Ka3 Rh8 b4 Qd6 b5 Qe7 b6 Qe5 Nf2 h3 Bg2 Rh4 Nc3 Na6 b8R Nf3 b7 Bh6 Bf4 Ne1 Rb1 Qe8 Na2 Bg7 Bf3 Nh6 Bc7 Qe6 Rg8 Rf4 d8R Bd7 Rde8 Qd5 Re5 Bb5 Rbd8 Rc8 Rf1 h1B b8R h2 Rb6 Qa8 Bb8 Nc7 Rdd1 Re8 Rd7+ Re7 Rb7 Bg2 Rh8 h1B Rg1 Bf1 Rg4 Ba4 Rh7 Bd1 R7b3 Qd5 Rh8 Na8 Rh7 Qb7 Rh8 Qc8 Rh7 Qg8 g6+ Kf8 f7 Bf6 Rh8 Kg7 f8R Nf7 Rhh4 Ng5 Qc2 Bb5 Qe2 Qc4 Rf7+ Kg8 g7 Re6 Rh2 Rd6 Rh6 Rd3 Rhh4 Bd8 f6 Qe6 Be4 Bf3 Bg6 Bd5 Bh5 Kh7 g8B+ Kh6 Bh7 Qe8 Rd6 Qg8 Bf5 Be7 Rf8 Bd8 f7+ Kg7 Rd7 Kf6 Rg1 Be7 Bf3 Qh7 Rh8 Qg8 Rf1 Bd8 Rg4 Be7 Re3 Bd8 Rhh4 Be7 B5e4 Ke6 f8R Bf6 Ba7 Ke5 Bf5+ Kd4 Bb8 Nb6 Ree7 Na8 Re5
1R3R1K/1B3b2/n2Rqrrn/2B1RQ2/5rRn/2bN2R1/p1nk1pR1/2R1N2R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 g5 h4 a5 b6 f5 d6 c4 d7 a4 b7 f3 d5 g4 h6 a3 h7 f2 d6 c3 h5 f4 h6 f3 Nd2 a2 Qc2 g3 Ba6 f1N Ne2 g2 Nf4 g1N Nd3+ Ka5 b4+ Kb6 b5 Ka5 b6 f2 Nf3 Ra7 Nfe1 Ne2 Ba3 Nfg3 Rc1 Nf1 Bc5 Qc7 d8R Ne7 Kf6 Be6 e5 Neg3 d7 Rg8 h8R Ng6 h7 Bf7 e6 Qc8 e7 Nh4 e8R Ne3 Re5 Ngf5 Rh3 Rg7 Rg8 Nh6 h8R Bd6 Qb1 c2 Rdf8 Bc7 d8R Rg6+ Ke7 Rf6 Rg4 Rg6 Rfg8 Qe6+ Kf8 Rf6 Kg7 Bd6 Rd1 c1R Rhg3 Rc4 Rc1 Rcf4 Qc2 Be7 Rd6 Rg6+ Kh7 Bf6 Qb1 Nc2 Rg2 Nc6 b8R N6b4 Bb7 Ra6 Rbf8 Kb5 Rg7 Kc4 R4g3 Kc3 Rg4 Bd8 R4g3 Rgf6 R7g4 Kd2 Kg7 Be7 Rh7 Rg6+ Kh8 Bg5 Bf3 Bd8 b7 Ba5 b8R Rb6 Bb7 Na6 Qb3 Bc3 Qd5 Rbb4 Qf3 Rff6 Qf5 Rf4 Qe4 N6f5 Rh5 Nh6 Qf5 Nf3 Rhh3 Nh4 Rh1
1KBB3N/1np1B1QB/5nBr/3BR2b/1N3R2/4p3/pq3b1B/1rnBkq1B b - - 0 1 illegal: No proof kernel
1K5n/1n2BBq1/3B4/1N1pR1n1/3nBRp1/B1rB1q2/1kBQ1NQ1/1b3Br1 b - - 0 1 legal: proof: d4 b5 h4 e5 g4 g5 a4 c5 axb5 cxd4 f4 f5 fxe5 Be7 gxf5 g4 Bf4 Bg5 hxg5 Bb7 Bc1 Bc8 Kf2 Ke7 Kg3 h5 Kf4 d5 b4 a5 c4 h4 e4 d3 g6 d2 b6 a4 f6+ Ke6 b5 a3 f7 a2 f8B h3 c5 h2 b7 Nc6 b8B Na7 g7 Rh6 b6 Rh3 c6 Rh5 c7 Bd7 c8B Rh7 b7 Rh8 Bbd6 Nc6 b8Q Qb6 Bca3 Rh3 Bfe7 Qd4 Nc3 Qc4 Ba6 Nh6 g8B+ Nf7 Nb5 Qc2 Bh7 Rc3 Nh3 Bc8 Nf2 Nd4 Rc1 Kd7 e6+ Kc6 e5 a1N Be4 Nab3 Qf3 d1Q Qg2 Qde2 Re1 Nh8 Rg1 h1N Qa7 Nf3 Qe3 Ng3 Qd2 Nf5 Rh1 Rb8 Rh6 Ng5 Rf6 Rb6 Bf3 Rb8 Nc7 Qcd1 Bdc5 Re3 Bd8 Qb5 e7+ Nd6 e8B+ Bd7 e6 Qb4+ Bfc4 Na5 e7 Rd3 Ke5 Nb3 Bg6 Qb7 e8B Nd4 Rf4 Rc3 Bce2 Qa7 Bac4 Rb1 Nb5 Qc7 Bcb4 Kb6 Bc5+ Ka5 Bf6 Qd8 Bef7 Qg8 Be7 Bf5 Bb3 Bc2 Bgd3 Nb7 Ba4 Rc1 Bb3 Bb1 Bbc2 Nd8 Kd6 Qg7 Kc7 Nb7 Bf1 Qe2 Kb8 Qe4 Re3 Re1 B1e2 Rg1 Bf1 Qf5 Re5 Qe4 Bb3 Qe2 Ba2 Ka4 Bfe4 Qf3 Bcd6 Bc2 Bb1 Kb3 Bac5 Kb2 Ba3+ Ka1 Ba2 Bb1 Bb3 Rc8+ Ka7 Rc3 Bbc2 Ka2 Kb8 Ka1 Bab4 Kb2 Ba3+
N2k1N2/Nq3nNn/r1Bn1q1b/3KN3/4Q3/N2p3q/R1rnQNNB/4Rb2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 e5 f4 g5 b4 g4 c4 a4 f6 a3 f5 a2 c5 g3 c6 g2 f7+ Ke7 h6 Ra4 b6 Nf6 b5 Ne8 h7 Bb7 c7 Bh6 f8N Be3 c8N+ Kf6 h5 Rc4 h6 Bf2 Na3 Be1 Ne6 Ba6 b7 Bd2 b6 Nd7 b8Q Nf8 b7 Qe7 Ng7 Nd6 Nh3 g1N Nf2 Nh3 Qe2 Ng5 Na7 Ngf7 Bg2 Rg8 h8N Nh7 Qc7 Rc2+ Qc4 Ra8 b8N Qb7 Re1 Ke7 f6+ Kd8 Ng6 Be3 Nh4 Bf4 Rb1 a1Q Nd7 Be3 Nb6 Bb5 Nac8 Ra6 Rb2 Bd2 Na7 Be3 Qd2 Bf4 Ra2 e4+ Ke2 e3 Kd3 e2 Na8 Be3 Qb4 Bg5 Bf4 Qb2 Bh2 Bf4 Rg1 e1Q Rf1 Qe6 Re1 Qh3+ Bf3 Bc1 Ng2 Qa1 Qd2 Qb2 Ke2 d3+ Ke3 Qc3 Qe4 d4+ Kf4 Bc4 Qde3 d2 Qe2 d3 Ke3 Bd5 Kf4 Qcc6 Ke3 d1N+ Kd4 Nhg5 h7 Ne3 h8N Nh7 Ng6 Nf1 Ne5 Bh6 Rc1 Nd2 Re1 Nfg5 f7 Be6 f8N Ngf7 Qg6 Bg4 Bd5 Bf3 Qe6 Bh5 Qe4 Be2 Q6g4 Bf1 Qge2 Qe8 Bc6 Qee7 Kd5 Qg5 Qh4 Qf6 Qhe4
k5Bb/1B2n3/qn2B1nR/pQ2B1RN/2R5/1RQb4/1NnQ2QK/r2b4 b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Kf2 Kd7 Kg2 c5 d4 Kc7 b4 Kb7 d6 e5 g7 h5 d7 e4 b6 c4 g6 h4 b5 e3 d5 c3 f6 e2 f7 e1Q d6 c2 Nh3 Nc6 Nc3 Na7 Qf3+ Kb8 b7 Be7 f8Q Nc6 Na4 Ne5 Bb2 c1N Be2 Na2 Qf6 Nd3 Rc1 Qb6 d8Q Nc3 d7 Nd5 Qe5+ Ka7 b8R Qa6 Rc4 Qb1 Rb7+ Ka8 b6 Bb4 Qdf6 Bd2 d8Q Nge7 Rg1 Rg8 Kh2 Bc3 Qh1 f3 Nf4 f2 Nh5 Rf8 Rg5 N3f4 Qg2 Rf7 Qdd6 Bf5 Rbc7 Rf8 R7c6 Rd8 Bf3 f1N+ Kg1 Nfe3+ Kh2 Nc2 b7+ Ka7 b8R Be4 Rb3 Ka8 Ra3 Bf5 Ba1 Qbb7 Rb3 Nb6 Qb5 Rd7 Qdb4 Rd1 Qbd6 Rf1 Qdd2 Bd3 Qfe5 Bd4 Bc3 Ra1 Nb2 Be2 Qee3 Bf6 Be5 Bd1 g8B Bh8 g7 Ne2 Qh1 Nf4 Rh6 Nfg6 Qec3 h3 Kg3 h2 Be6 Ra4 g8B Ra3 Bfg4 Ra1 Qhc6 h1B Kh2 Be4 Be2 Bd3 Qg2 Ka7 Bf3 Ka8 Bxb7+
5RK1/B1p2r2/2BpN2k/3Q2N1/qpq1NQ2/5RBr/2q4n/Q1b1Q1BN b - - 0 1 legal: proof: e4 h5 g4 b5 gxh5 f5 exf5 a5 b4 axb4 a3 Nh6 a4 Ng8 axb5 e5 d4 e4 c4 Ba6 b6 Bb5 cxb5 Nc6 Qb3 Ra6 Qd1 Ne5 dxe5 Ra8 Kd2 Kf7 Ke3 g5 Kd4 Kg7 Kd5 e3 f4 e2 h4 e1Q f6+ Kh7 f7 d6 Ke6 g4 b7 g3 b8B g2 h6 Qc3 b6 Qc4+ Qd5 Qg5 h5 Bg7 f8Q Qd8 Kf7 Qb3 f5 Qc8 b7 Qc4 f6 Qb5 e6 Qe2 e7 Qe1 e8Q Ra7 Nd2 Qd8 Ne2 g1Q Rh3 Qh1 Rf3 Ra6 Ng3 Qe3 Ba7 Qf2 b8B Qhg1 Bg2 Qd4 Nh1 Ra2 Qe1 Qg4 Ne4 Qh4 Bf4 Rb2 Bg3 Qgh2 Bg1 Rb1 Ra8 Rb3 Bba7 Ne7 Rc8 Ng6 Ra8 Rg8 Rc8 Kh8 h7 Bh6 Rb8 Be3 Qh6 Qc8 Qf4 Qa6 Rf8 Bc1 Bf1 Ba3 Bb5 Qa4 Bc6 Qg2 Ke6 Bc1 f7 Kg7 h8N Kh7 h6 Qe2 Rb8 Rg7 f8N+ Kg8 Ra8 Rf7 h7+ Kg7 Rc8 Ne5 Re8 Rd7 Nf7 Ng4 Ng5 Kh6 h8Q+ Rh7 Rd8 Qc2 Qa1 Nh2 Kf6 Ra3 Ne6 Rg7 Rf8 Qg4 Rf2 Qge2 Rf3 Qec4 Rf7 Rc3 Ke7 Rh7 Kf8 Rd3 Kg8 Rc3 Rf8 Rf7 Rf1 Rf3 Bh4 Rg3 Rf3 Rh3 Bg3
R2rQq2/NR6/nq1bB1QR/1Q3q2/k2r1B2/3Qq3/KbNqb3/1RN1N3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 Kb2 e4 g4 e3 g5 e2 b6 e1Q g6 h3 d6 Kc6 b7 a4 f6 h2 f5 h4 d7 a3+ Ka2 c4 b5+ Kb6 f7 Ka5 b6 h3 g7 c3 f6 c2 d5 Rh4 d6 Rg4 Nd2 Ne7 g8Q Ra6 Nb3+ Ka4 Qd3 Qe3 Nf3 Qe4 Bf4 c1Q Rb1 Qee3 Qgg6 Nf5 Ne1 Qc3 Nc1 Qdc7 d8N Ra8 d7 Na6 b8Q Nd6 b7 Qcb6 Nc6 Nb5 d8N Bd6 Nd4 Qcd2+ Ndc2 Rh4 f8R Bg4 f7 Be2 Nc6 Rg4 Qc7 Rd8 b8R Rh4 Ka1 a2 Rb7 Rg4 Kb2 a1B+ Ka2 Bb2 Na7 Rh4 Qc5 Rg4 Rg1 h1Q Rg2 Qhg1 Rh2 Qgf2 Rg8 Qff3 f8Q Qfe4 Bg2 Qf5 Qfe8 Rh4 Rh1 h2 Bd5 Qf8 Be6 Rg4 Rg1 h1Q Rf1 Qh5 Rh1 Qhf5 Rh6 Rg3 Rgg7 Rf3 Rb8 Rh3 Ra8 Rh4 Rb7 Rg4 Be5 Rc4 Bf4 Rd4 Qcxb5+
R2r4/1b6/r1qNR2b/3n1N1K/n2k2p1/RRbN4/2Qr1Q2/BB1BNnB1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 e4 f5 exf5 b5 a4 d5 axb5 Qd7 c4 Qd6 cxd5 Qd8 Ke2 Kd7 h4 Kd6 f4 Kc5 d4+ Kc4 f6 c5 h5 e5 h6 g5 b6 g3 Kf3+ Kb4 a6 g2 f5 c4 Kg4 c3 f7 e4 a7 c2 b7 e3 d6 e2 h7 Kc4 d7 Ba3 f8Q Nc6 b8R Bb4 d5 Nce7 d6 Kc5 f6 e1R f7 Re5 Nc3 Re2 Rh6 Nc6 Ra3 Re5 Bd3 Qa5 Nf3 g1B Be3+ Nd4 Kh5 c1N d8R Bd7 Nd5 Re7 Bb1 g4 Qc2+ Bc3 Re6 Ba4 d7 Qc7 Ne1 Bc6 Rbb3 Ne2 Rdb8 Kc4 d8N Nb5 Nb7 Rd7 Nc5 Rd8 Ncd3 Ne7 Bc5 Rg8 h8N Bb7 Rc8 Bh2 Bg1 Bf4 Ne3+ Kd4 Rb8 Rd6 Re8 Rad8 a8B R8d7 Rd8 Bh6 Rb8 Ra6 Re8 Bh1 Bf3 Qc6 Rb8 Nd5 Ra8 Nc1 Bd1 Ne2 Qc8 Re8 f8B Red8 Nf7 Be4 Nd6 Ng3+ Kh4 Nf1 Qf2 Bb4 Kh5 Nbc3 Be7 Na4 Bh4 Qb6 Qc1 Qc6 Qcc2 Bc3 Be7 Bg2 Bf8 Be4 Bg7+ Nf6+ Kh4 Qc5 Bh8 Bd2 Qg3 Re7 Qf2 Bb7 Re5 Nd5 Kh5 Qc6 Qh4 Rf7 Qh2 Rf2 Bf6 Re2 Qf2 Ba5 Be7 Rd2 Re6 Bb4 Ndc4 Ba5 Bb4 Bc7 Nd6 Re2 Bd2 Ba5 Bc1 Bb4 Bb2+ Bc3 Ba1 Rd2 Nef5#
1N1Nr1QN/N1q3nQ/rQB1r3/Q1b1pBr1/2k2B2/1b3r2/2nRR3/1K2B3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 Kf7 Kd2 h5 Kc2 c5 g4 e5 f4 c4 g6+ Kf6 b6 c3 g5+ Ke7 f6+ Kd6 f5 h4 g7 h3 b7 h2 g6 Rh4 f7 Rh8 f6 Qe8 Ne2 Qd8 Qe1 Rh7 Bf4 Bd7 Bg2 Be7 f8Q Rh3 f7 Bg4 Ra2 Rh5 Na3 b3+ Kb1 b2 Nb5+ Kd7 d6 Ke6 d7 Nc6 b8N Qb6 d8Q Nb4 Bc6 Ra3 Na7 Nf6 g8Q Bc5 g7 Ra6 Qh7 Qc7 g8B Ne8 Qfg7 Rf5 f8B+ Rf7 Rg1 h1R Rg2 Rg1 Be7 Bh5 Bh4 Nc2 Rf2 Rg5 Qgh8 Qb7 Qb6 Qc7 d5+ Kd6 Qd2 Ng7 Qe1 Re7 Be6 Bf7 Bf5 Re8 Q8g8 Be6 Be3 Bf7 Nf4 Re6 Ng6 Re8 Nh8 Be6 Ra5 Bf7 Ka2 b1R Bf4 Rb3 Re2 Ne3 Bf2 Ra3+ Kb1 Bd4 Qd2 Be6 Be1 Bf7 Rb5 Be6 Rb2 c2+ Kc1 Rc3 Ba8+ Rc6 Ra2 Bc5 Qda5 Bf7 Kb2 c1R Beg3 Rf1 Be1 Rf3 Kb1 Be6 Rad2 Nc2 Qb2 Rcb6 Bb7 Bd7 Qb3 Ba4 Qbb4 Bb3 Ba8 Ke7 d6+ Kf6 d7 Ke7 d8N Re6 Bd5 Kd6 Bd3 Nf5 Bc6 Ng7 Ba4 Kd5 Qbb6 Kd4 Bf5+ Kc4 Bc6
K2bNqN1/1B2pQR1/Q3nr2/2kQ4/1NNqQ1b1/3rr2r/n6R/1B1B1B2 b - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 f6 h6 g4 Rh7 g5 Na6 f5 Rh8 fxg7 Nb8 g6 Nf6 Bd2 Ng8 Bg5 hxg5 Kd2 a5 Ke3 d5 Kd4 Kd7 c4 a4 h4 a3 b4 a2 h5 g4 b6 Kc6 b5+ Kd7 f6 g3 h6 g2 c6+ Kd6 f7 Qe8 h7 Nf6 g8B Ra6 b7 Bd7 b6 Bh6 f8Q Ra4 g7 Ra6 c7 Kc6 c8B Qg6 c5 Bh3 Ne2 g1R Ng3 Qg5 Na3 Ne8 Ne4 Ra4+ Nc4 Ra3 Bf5 Ra5 Ned6 Qg2 Rh2 Ra4 Bb1 Qg6 Qf7 Nf6 Ne8 Na6 b8Q Nd7 b7 Bg4 Qe5 Ra3 Qe4 Bd2 b8N+ Kb5 c6 Re3 c7 Ndc5 c8B Ba5 Qe2 Bd8 Nc6 Qh6 Bb7 Ne6+ Ke5 d4 Kd5 d3 Nb4 d2 Q2d3 Ka4 Kc6 d1R Qdd5 Rdd3 Qd7 Nac7 Kb6+ Kb3 Ka7 Nb5+ Ka8 Nc3 Qff5 Qf6 Bf7 Rf8 h8Q Rgg3 g8N Rh3 Qh6 Qd4 Bh5 Rf6 Qed5 Qf4 Qfe4 Qf3 Qhg6 Qf4 Qf7 Qh6 Qc8 Qf8 Qdf5 Ka4 Q5g6 Kb5 Qd7+ Kc5 Qh6 Bf5 Bd1 Bg4 Bbc2 Rg6 Rc1 Rf6 Bb1 Ng5 Rcc2 Ne6 Rcg2 a1Q+ Qa4 Bf3 Rg7 Na2 Qd7 Qd4 Qhg6 Bg4 Qh6 Rf2 Qhg6 Nf4 Qa6 Ne6 Qf6 Rff3 Qf7 Rf6 Qdd5+
8/bR2n1RN/1q3q2/1nBBB2N/k5K1/Q2b2bN/1QNB1pnb/QQ5b b - - 0 1 illegal: No possible last move, all moves rejected
Qq1b2K1/1qb1p1R1/BnBkR3/1r1n1pRb/3r4/6Q1/1NB2N1Q/1Q2R1B1 b - - 0 1 legal: proof: c4 d5 cxd5 Kd7 a4 g5 h4 gxh4 d4 b5 axb5 c6 e4 Na6 d6 Ke6 d7 Nb8 d5+ Kf6 d6 Ke6 f4 Kf6 g4 a5 f5 Kg7 b6 Ra6 b7 Rb6 g5 Rb5 Bd2 Rd5 exd5 Qb6 Bc1 Qd4 Bh3 Qf6 Bf1 Qg6 fxg6 Na6 Be2 Nb8 Bc4 Nh6 Bf1 Ng8 Kd2 h5 Kc3 f5 Kc4 a4 d8R c5 b4 h3 b5 a3 b6 a2 d7 h4 d6 h2 Kd5 h3 Ke6 c4 Be3 c3 Nd2 c2 Nc4 c1R Nb2 Rb1 Ba6 Nc6 b8Q Rh5 b7 Kh8 Kf7 Nb4 g7+ Kh7 Qe1 Nf6 g8B+ Kh8 g6 Bg7 Qg3 Rh4 Qc7 Rd4 b8Q Nbd5 Bf2 Rf1 Re1 a1B Re5 Bb7 Qc1 Ba8 Qb1 Nb6 Rc8 Bf3 d8Q Bh5 d7 Bh6 Rc1 Nfd5 Rce1 Bd2 Qdc8 Bc1 d8R Bd2 Qbc7 Bb4 Qa8 Ba5 Be3 Rff4 Kf8 Rf3 Be6 Rff4 Bd7 Rb4 Bdb5 Rfd4 Bc6 Rb5 g7+ Kh7 g8B+ Kh8 Be6 Kh7 Qf3 Kg6 Qg3+ Kf6 Rc8 Nb4 Bb3 N4d5 Nc4 Bb2 Bc2 Ba3 Qcb8 Bd6 Nb2 Bc7 Kg8 Bd8 Ne2 Bc7 Rhg1 h1Q Nc3 h2 Ncd1 Qe4 Rd8 h1Q Nf2 Qd3 Qh2 Qb3 Rg5 Qg2 Kh7 Qb4 Rdg8 Bd8 R8g7 Qd6 Qc8 Qb8 Kg8 Qh1 Qc7 Qf3 Re4 Qg2 Qcg3 Qh1 Reg4 Ke6 Rf4 Kd6 Re4+ Nf4 Re5 Qg2 Bd7 Qgb7 Bc6 Nfd5 Ng4 Nc8 Bg1 Bac7 Nf2 Ncb6 Re6+
1K2B1n1/B1rN1Q1b/3b3Q/4R1BN/2RbNp2/3p2q1/1B2Q1Q1/k1rNr1b1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Nc6 Kd2 Nf6 Ke1 Na5 bxa5 Ng8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 c4 g4 h4 f6 a6 a3 c5 a2 b6 d3 a7 d2 c6 d6 h6 g3 h5 g2 c7 Qd7 h7 Qd8 b7 Qe8 b8B Qb5 h6 Qa5 Ba3 Qc5 Nc3 Qb6 Rc1 a1B Nh3 g1B Nf2 Qa5 Rh5 Ba6 c8N Qc7 Nb6 Bb5 Nd7 Ke7 Kd5 f5 e4 f4 e6 Qd8 e5 Qc8 Nce4 Be2 Rc4 Bf3 Qe2 Bg7 Nd1 Qd8 Kc6 Bg4 Kb7 Bf8 Bh3 Bf5 Bg4 Ke8 e7 Kf7 e8N Ke6 Ng7+ Kd5 e6 Qh4 e7 Qg3 e8Q Bad4 Rg5 Be7 Bh5 Bf8 Bg6 Be7 Nh5 Bf8 Bc7 Rc8 Bd8 Rc7+ Kb8 Be7 Ndc5 Ke5 a8Q d5 Qf7 Bd6 Qb7 Ne7 Qc6 Re8 Qa8 Ng8 h8Q+ Nf6 Qhf8 Ng8 h7 Re6 Qh6 Ree7 Ndc3 d1R Qc6 Rc1 Nd1 Bdf2 Qa8 d4 Qc6 d3 h8B+ Nf6 Qb7 Bd4 Qbb2 Re6 Nd7+ Kd5 Qbc2 Ng8 Qg2 Bgf2 Qe2 Bg1 Qff8 Re5 Be8 Bg6 Rf5 Bh7 Bg5 Bde3 Rc6 Kd4 Qf7 Bef2 Bg7 Be3 Bf8 Re6 Bc5+ Kc4 Bb6+ Kb3 Ba7 Bd4 Rc4 Ka3 Re5 Kb3 Nb2 Ka2 Nd1+ Ka1 Rf5 B6e5 Ba3 Bd6 Re5 Rf6 Ne3 Re1 Nd1 Rf5 Re7 Rfc5 Re5 R5c6 Ra4 Rc3 Rc4 Rc1 Bb2+
1r2b3/1RQ1k3/R2R2bq/4prn1/1N4N1/1R2rq2/1NQBrp2/KN3QQB b - - 0 1 illegal: No possible last move, all moves rejected
1b1Rbr2/2Qp4/4BRr1/RQQp1n1B/5rN1/1R2qNk1/2rq1N1N/K2Q4 b - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 f5 exf5 b4 d3 b3 axb3 Ba6 b4 Bb7 b5 Bc8 c4 Kf7 c5 Ba6 c6 Ke8 d4 Bc8 Bf4 Na6 Bd6 Nc5 dxc5 cxd6 Kd2 Kf7 Kc2 Kf6 h4 Ke5 b4 Kf4 Kb2 e5 b6 g5 b7 a5 b8Q g4 h6 a4 h7 d5 f6 g3 c7 g2 h5 e4 f7 e3 h6 e2 c6 e1R b5 Ra6 b6 Bb4 f8R+ Nf6 b7 Re7 Rh3 Ra8 Nd2 Rg8 h8R Rf7 h7 Rfg7 Ngf3 g1R Nh2 Ra6 Rb3 R1g3 Ndf3 R3g4 Bh3 R4g5 Be6 R7g6 Raa3 Rb6 Ka1 Bd2 Qa7 Rb5 b8Q Rc5 Qb5 Bb7 c8N Be1 c7 Qe7 Nd6 Rg4 c8B Rc2 Ne4 Ba6 Rd8 Ne8 Qc7+ Nd6 Ra2 R8g7 Rhf8+ Rf7 h8N a3 Bb7 Rff6 Nf7 Ba5 N7e5 Nf5 Bc6 Qc5 Bb7 Qe3 Bc8 Bb4 Rf7 Rh4 Neg4+ Bd6 Rff8 Rg8 Bb7 Rfg6 Rf6 Rf8 Bc6 Bc8 Bb7 Qd2 Ba6 Be5+ Rab2 a2 Ra3 Bd6 Rbb3 Bb7 Ra5 Bc6 Qbb8 Ba4 Be2 Bb5 Qbb7 Bd3 Qb5 Qe3 Nfe5 Qd2 f3 Qe3 Nef2 Kg3 f4 Be4 Qcb7 Bb8 Qc7 Ng7 f5 Bd3 Nh6 Rf4 Bh5 Be4 N6g4 Bf3 Rf7 Be2 f6 Nf5 Nef3 Rc3 Nh6 Rg7 Nh4 Rh8 Kb2 Rc6 Bg6 Bh5 N6g4 Rc3 N4f3 Rhg8 Bh7 Rg5 Rff8 Be8 Bg6 Rc4 Bh5 R5g6 f7 Rh8 Rg8 Rc6 f8Q Rc1 Qe7 Rc5 Rg7 Rf8 Rf7 Rc3 Qec5 Rc1 Rd3 a1Q+ Kb3 Qh8 Ka2 Qc3 Rf6 Rc2+ Kb1 Qce1 Ka1 Q1d2 Rb3
bN1k2B1/2b2bb1/Bn1p2R1/7r/QRQbNR2/Bp1K4/B1r4N/1b2R1N1 b - - 0 1 legal: proof: g4 c5 e4 f5 exf5 a5 b4 axb4 d4 g5 dxc5 Ra5 h4 Ra8 f4 Qa5 f6 Nc6 f5 Kd8 f7 Qa3 f6 Qg3+ Ke2 Nd4+ Kd2 Qf4+ Ke1 Nf5 gxf5 g4 Nf3 Ra5 Ng1 Qg5 hxg5 Ra8 Rh6 b5 Kd2 e5 a4 e4 c4 b3 a5 b2 a6 b4 a7 Ne7 c6 Kc7 c5 Rb8 a8B Nd5 g6 Rb7 g7 Kd8 g8B Bg7 f8R+ Kc7 f7 Be5 f6 Bh2 Ba6 e3+ Kd3 e2 Nd2 e1B Ndf3 Bc3 Qa4 Bce5 Rh4 h5 Rd8 Rb5 f8R Nb6 f7 Bg7 Rde8 Rh7 Re6 Bhe5 Rg6 g3 Nh3 g2 Nhg1 Bb7 Rc4 h4 Nh2 Rh5 Rb8 Nc8 f8N Kd8 Rf4 Bd6 Ba2 b3 Rb1 Rb4 Ra1 Rc4 c7+ Ke7 Rb1 Bd5 c6 Rc2 Rbb4 Nb6 c8N+ Kd8 B8b7 Bb8 Nd6 Bg8 Ne4 d6 Nd7 Bd5 Nh3 g1B Bc4 Be3 Bba6 Bed4 Ng1 Bg8 Bd2 Be6 Re1 b1B Bc1 Bd5 Ba3 Bg8 Ng3 Be6 Nhf1 h3 c7+ Ke7 c8Q h2 Bd5 h1B Qc4 Bc7 Nh2 Kd8 Nb8 Bg8 Bf7 Bb7 Ne4 Ba8 Be8 Be6 Bf7 Bed5 Bg8 Be6 Rf5 Bf7 Rf4
2rr1NN1/R2b1k2/bpBBR2q/r6N/1b2B2B/p4R2/1Q1R1Qb1/K2N3r b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Bb7 a5 Bc8 a6 Qd7 Qe2 Qd6 Qd1 Qd8 b4 Nh6 Qa4+ Nc6 Bc4 Nf7 Qc2 Nd6 Bf1 Nb7 axb7 a5 Qb3 a4 Qd1 Na5 bxa5 Qd7 Bd3 Qd6 Bf1 Qd8 b8B c5 f4 e5 g4 h5 d4 h3 Kd2 c4 Kc2 h4 Kb2 h2 d6 e4 a6 h3 f6 e3 f7+ Kd7 g5 Ke6 d5+ Kd7 f5 e2 g6 e1R g7 Rh5 g8N Rh6 a7 Re8 f6 Re7 Qe1 Re4 Qf2 Rd4 Bg2 Qe8 Nc3 Qe1 Bg5 Bb7 Nge2 Bc6 Ng3 Bb5 Nh5 Kd8 d7 Be7 f8N Ba6 f7 Qe6 Rhe1 h1B Be4 h2 Nd1 Bg2 Bd6 h1B Bh4 c3+ Ka2 Rc8 a8B c2 Bc6 c1R Qb2 Rh8 Rf1 Rcc4 Rf3 Rc5 Kb1 Rh6 Ra2 Rh8 Ka1 Ra5 Bdg3 Bh3 Re3 Qd6 Nf4 Bb7 N8g6 Rh5 Rb3 Rf5 Nh5 B1g2 Rc3 Rf1 f8Q+ Kc7 d8R Ra6 Bf4 Rh1 Re8 Bg4 Bh2 Qf4 Qf5 Bb4 Nf8 Kd6 Re5 Qd2 Qf2 Qh6 Rf3 Be6 Ngf6 Ke7 d6+ Kf7 d7 Rd6 d8R Bf5 Ng8 Ra7 Qbd4 a3 Rd2 Rd7 Qb2 Ra5 Ree8 Ba6 Bd6 Rcc7 Rb8 Rd8 Ra8 Rcc8 Ra7+ Rd7 Bc7 Rdd8 Bf4+ Bd7 Re6 Rd5 Bc7+ Rf5 Bf4 Ra5 Bd6+
k2RB3/3K2Qb/NBpRNR2/2p1qnQ1/1QBB1r2/7p/q7/1Q2bnRr b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 c4 f4 a4 f3 axb5 d6 c5 dxc5 exf3 Ra7 f4 Ra6 f5 Ra8 Ke2 Kd7 Ke3 e5 Ke4 h5 Kd5 e4 g4 e3 d4 e2 f4 e1Q f6 h4 a6 h3 f7 Be7 f8Q Nc6 a7 Qc3 g6 Qe1 f5 Bb7 g7 Rb8 a8B Qh4 b6 Kc8+ Ke6 Qe8 f6 Qf2 g5 Qc2 f7 Qg2 d5 Nh6 g8R Na7 g6 Ng4 g7 Nb5 d6 Qd2 d7+ Kd8 Na3 Qe1+ Be3 Nh6 Ne2 Qg3 Rg1 Ng4 Bd4 Ba6 b7 Nh6 Nf4 Qf2 Nc2 Rh7 Nb4 Na3 Bc4 Qa2 Qb1 Nf5 Rd1 Bb5 Na6 Nc2 Rh8 Ba4 g8Q Rh4 Qg5 Nce3 Qfg7 Nf1 f8R Bc2 Rf6 Rg4 Rhh6 Rg1 Rh8 Rh1 Rhf8 Rc8 b8Q Bd3 Bf3 c6 Bh5 Be4 Q8b3 Rb8 Rh8 Rb4 Rhh6 Qh8 Be8 Ra4 Qb4 Bd6 Nb8 Kc7 d8B+ Kc8 Rd3 Bc7 Rd1 Ba5 Na6 Bd3 Bb6 Bc2 Qg8 Kb7 Kd7 Ka8 Q8g7 Bd3 Rhg6 Qh5 Rh6 Qhe2 Rd6 Qe5 Rhf6 Be4 Ne6 Bc2 Qa3 Be1 Rd2 N5e3 Qab4 Bh7 Rg2 Nf5 Rg1 Qae2 Ra3 Qa2 Rb3 Ra3 Rb2 Rf3 Rd2 Rf4 Ba1 Nh6 R6d5 Rf2 Kc8 Bg8 Rd8 Bh7 R2d6 Nf5 Bd4 Rf4 Kd7+
1R1b1nk1/B1rR1pb1/1pQ1RB1N/4b1Qp/B2n1Bn1/7K/3N4/2R1rN1N b - - 0 1 legal: proof: c4 a5 g4 h5 b4 e5 f4 d5 fxe5 Qf6 cxd5 axb4 h3 Qh6 g5 Bg4 gxh6 g5 Kf2 Bf3 Ke1 g4 Qc2 g3 Qd1 Bg4 hxg4 Ra5 Qc2 Ra4 Qd1 Ra8 e4 c5 a4 b3 d4 c4 d6 b2 a5 c3 d5 g2 Kf2 c2 Kg3 Bg7 a6 Kf8 h7 Nh6 a7 Nd7 e6 Bd4 e7+ Kg7 e8R Nb8 e5 Ng8 e6 Nd7 e7 Nc5 d7 Bf2+ Kh3 Bg3 d8Q Nd7 g5 Rb8 a8N Nh6 d6 Nf6 g6 Nd5 d7 Nc7 Nb6 Nb5 Bf4 c1B Ra7 Be1 Nc4 Rf8 h8B+ Kg8 g7 Nf5 Qd5 Bg3 Ncd2 Be1 Qc6 Nbd4 Ne2 g1B Ng3 Rc8 Bb5 Nh4 Ndf1 Rc7 Ba4 Ba5 Nbd2 Bh2 Rg1 b1N Nh1 Kh7 g8N Ng6 Bf6 Nc3 Nh6 Bb2 Nf5 Ne4 Bb3 Rh8 Ba4 Bbc3 Rg8 Nf8 e8R Ba1 Re6 Nf2+ Kh4 Ng4 Kh3 Bb6 Qe7 Bb2 d8B Ba5 B4g5 Be5 Bf4 Rd7 Bb6 Rc7 Ra8 Bbc3 Ba7 Ba1 Rg6 B1c3 Rh6+ Kg8 Rb8 Ba1 Rd6 Bb2 Rd7 Bb6 Bg7 Bc3 Rf6 Rh6 Rfd6 Re6 Bh8 Bg7 Qg5 Re1 Rf6 Nb5 Re6 Be5 Rg3 Nd4 Rc3 Bc5 Rc1 b6 Qh4 Be7 Qg3 Bh6 Bf6 Bd8 Qgg2 Bg7 Qg1 Ne3 Qg5 Ng4 Nh6+
1k1N1B1B/rpNb3K/1Rn2R2/2Q1rRb1/1N1Q1Rr1/Q1bn2Q1/N1pp4/8 b - - 0 1 legal: proof: c4 a5 b4 d5 bxa5 h5 cxd5 h4 d6 e6 d7+ Ke7 g3 Kd6 gxh4 Ke7 h5 Ra6 Nc3 Ra7 Nb1 Ra8 d4 Kd6 f4 Qe8 e4 Ne7 d5 Ra6 e5+ Kc5 d6 Ra7 Bg2 Ng8 Bd5 exd5 f5 Qe6 fxe6 Kc6 Ba3 Ra6 Bc1 Ra8 Kf2 f5 Kf3 g5 d8Q g4+ Kf4 d4 Kg5 g3 Kg6 f4 h4 f3 a4 f2 a6 f1R a5 g2 a7 d3 a6 d2 e7 Bg4 e8N Kb6 d7 Bh6 e6 Bg7 h6 Rf7 h5 Rh7 e7 Rf1 Rh4 Bb2 Nh3 g1B Nc3 Bf3 Qe1 Bg2 Ra5 Bf3 Rf5 Bd4 Na2 Bbc3 Nf2 Bh1 Qc8 c5 d8N c4 Rhf4 Be5 Nd3 Bg2 Ndb4 Rf3 Qg3 Bf1 Nc7 Bf6 e8R Rh8 h7 Nd7 h6 Re3 Rf8 Re5 Ba3 Nc5 Rf7 Bg5 R7f6+ Re6 Kg7 Nd3 Kg6 Ne7+ Kg7 Rb8 a8R Bh3 a7 Nc6 Kg6 Rhe8 h8Q Re4 h7 R8e5 Qg7 Rd4 h8B Bg4 Kh7 Rde4 Rf2 Rd4 R5f4 Bd7 R4f5 Rg4 R2f4 Bb2 Nba6 c3 Bf8 c2 N6b4 Be8 Qgd7 Bc3 Qd4+ Rc5 Qe6 Bd7 Qed5 Rc8 Nf7 Re8 Nd8 Re5 Rc8 Re6 a8Q Re5 Q4e4 Rb5 Qa3 Ra5 Qec4 Ka7 Qce4 Nb8 Rb6 Ra4 Qc5 Nc6 Qed4 Ra5 Nf7 Ra6 Re8 Ra4 Re6 Kb8 Ref6 Ra7 Nd8
bq3RKn/R1n1p1R1/1Q1N1q2/3Q2Q1/p1BB3k/rNp1qR2/2p3B1/Q5B1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 gxf5 d5 f4 dxc4 e4 g4 h4 Bg7 e5 Qd3 f6 Kd7 f7 Bf6 f5 Bg5 hxg5 Ra6 Qe2 Rf6 exf6 Qh3 Qf3 Qh6 Qe2 Qf8 Qd1 Qd8 Ke2 h5 Ke3 c5 Kf4 h4 Ke5 c3 f8Q h3 b4 c2 d4 g3 g6 c4 f7 g2 g7 h2 f6 c3 d5 Qc7+ d6 Qc6 b6 Rh3 b7 Qb6 b5 Rh4 Nh3 g1Q Bg2 Qc7 b6 Na6 b8B Qc4 b7 Rh5+ Ng5 Qb3 Nd2 Qb2 Ba7 Rh4 b8Q Qb4 Nb3 Rh7 Bce3 Qg4 Bad4 Qh3 Ne4 Qh6 Qb6 Qe1 Rg1 h1Q Qd2 Bb7 Qa8 Qf1 f8R Rh8 f7 Nc7 Bf2 Qa6 Qg5 Q1h2+ Kf5 Q6h3+ Kg6 Nh6 g8B Ke6 Kg7 Qe3 d7+ Qd6 Qaa7 Ba8 d8Q Qc8 Qaa6 Qb8 Qf1 Qc6 Nd6 Qcf3 Ra4 Qf5 Qa1 Qff4 Re8 Qh4 f8R+ Nf7 Rf1 Qhf4 Bg1 Rh1 Bh7 Qf6+ Kg8 Nh8 Bd3 Rh5 Rf3 Rh4 Bc5 Rg4 Ra2 Ra4 Rf7 Ra3 Rg7 Qh6 Ref8 Qh4 Qg6+ Qf6 Bc4+ Ke5 Rh3 Kf4 Bd4 Qe5 Rd3 Qg5 Rf3+ Kg4 Qd7+ Kh4 Qe6 Qge5 Qd5 Qe3 Nd2 Rb3 Ra4 Ra3 Nb3 Qe1 Rb4 Qe2 Rb5 a4 Ra5 Qe4 Ra7 Qe3 Qgg5+
1NK5/Q2B1k1p/5q1R/BQ1b3Q/1NQq1nB1/q5p1/pN3R1p/N1b1n1B1 b - - 0 1 illegal: Other
1q2NN2/3nQ1q1/1RBr3B/1QRnq1rN/1bQ2qb1/2B5/Q2N1b1q/1KBk4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc2 a5 g5 a4 b6 a3 f6 h3 g6 a2 b5 h2 g7 c4 f5 e4 b7 c3 f7 e3 b6 h4 f6 e2 Nh3 e1B Nd2 Be6 Bb5 Bc8 Bc6 Bd7 Rb1 a1Q Qg4 Be8 Nf4 h3 Nh5 Ne7 g8N Nd7 b8B+ Qc7 b7 Rh6 Rb6 Ra5 Rf1 h1Q Rf5 h2 Qh4 Bg7 f8N Qg1 f7 h1Q Ngf6 Qhh2 Ba7 Rg6 b8Q Bf2 Qa8 Rh6 Bb8 Rb5 Qa2 Qe1 Qg4 Qee5 Qe2 Rc5 Qb5 Bh8 Qac4 Qa8 Ba7 Qab8 Kb1 Bg7 Ng6 Qcb7 f8B Bf7 Qa2 Be6 Qac4 Bh8 Bg7 Q7c7 Nf8 Rg6 Rg5 Bg4 Bh6 c2+ Ka2 Nf5 Kb2 Ne3 Ne8+ Ke7 Rf5 Qg7 Rg5 Qce5 Ka2 Re6 d6+ Kf7 d5 Rg6 Bb2 c1Q Bc3 Qf1 Kb2 Re6 Qa2 Qc4 Kb1 Qcf4 Rf5+ Rf6 Nh7 Kg6 Qbc4 Nf8 d7 Rd6 d8Q Nd7 Qe7 Ra5 Rf8 Rc5 Rg8 Kf5 Nf8 Rg6 d6 Nd5 Rb3 Rb5 Be3 Ra5 Rb6 Rg5 Nb3 Ra6 Qb5 Ke4 Bc1 Kf3 Nd2+ Ke3 Qe6 Qc4 Qf7 Ke2 Qf4 Kd1 Qd4 Nc5 d7 Qa4 d8Q Nd7 Qdc5 Qaf4 Qbc4 Qa8 Qde7 Qab8 Rb5 Rb6 Q5b4 Ra6 Rc5 Rb6 Qbb5 Ra6 Bb7 Rd6 Bc6 Qh7+ Ka1 Qe1 Bcg7 Re6 Ba8 Qee4 Bgb2 Bc3 Rg6 Qee5 Kb1 Bb4 Bc3 Qhg7 Bb7 Rc6 Rf6 Rc8 Ra6 Rc6 Rb6 Rd6 Bc6
N2bbr2/1krNQq1R/nq1R2Q1/8/K1Q2bQ1/3RR3/B2r3r/1Bn1B1Bq b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 Kb3 Kc7 g4 c4+ Ka4 c3 b6+ Kb7 f6 c2 f5 e4 b5 h3 d6 h2 g5 h4 d7 h3 f7 e3 d5 e2 g6 e1Q d6 Qd2 g7 Rh4+ Qg4 Ne7 g8B Qe2 f6 Qe6 Nd2 Qe8 d8R Nd5 d7 Be7 f8Q Nf4 f7 Qe1 Nc4 Qe4 Qh6 Bg5 f8Q Nd5 Qg6 Bf6 Qe7 Qd4 Nf3 Rh7 Bd3 Nf4 Ra3 Qf7 Be3 c1B Bb1 Nd3 Bg1 Bf4 Ne5 Nc1 Rb3 Na6 Re3 Kb8 b7 Qb6 Re8 Ka7 b8B+ Kb7 d8R+ Bd7 Rd3 Bh4 Bc7 Bc6 R8d6 Rd8 Rf8 Be8 Nd7 Rc8 Bb8 Rh8 Ba7 Rc7 Bf2 Bhg5 Re1 h1R Ree3 h2 Be1 Qe6 Rf6 Qf7 Rf5 Bf6 Rh5 Rf1 Rh7 h1Q Rg7 Rh2 Rh7 Qbc6 Bd4 Qb6 Bc5 Rff2 Bd4 Rd2 Bc5 Qa7 Ncb6 B6g5 Na8 Qb6 Qf8 Bd8 Qe7 Qf5 Bga2 Qf7 Ka3 a4 Bd4 Nb8 Kb4 a3 Ka4 Qc5 b6 Na6 Bc4 a2 Bb3 Nb4 Be6 a1R+ Bea2 Ka6 b7+ Qb6 Bc5 Ka7 b8Q+ Ka6 Qc8+ Ka7 Rf3 Na6 Bc2 Rb1 Bg1 Rb5 Bcb1 Rbh5 Rg7 Rh8 Rh7 Rf8 Rde3 Rc3 Qc4 Kb7 Red3 Rcc2 Rfe3 Rc3 Qd4 Rc7 Qc4
1B1N4/Nqr3q1/1Q6/n3B1k1/K4NBr/3RRQB1/b2b1qNb/R1bnRr2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kf6 d4 e5 Kd2 c5 Kc2 h5 Kb3 a5 g4 c4+ Ka4 c3 d6 h3 d7 h2 d5 e4 b6 c2 g5+ Ke7 d6+ Kf7 b7 e3 b5 h4 f6 Kg6 f5+ Kh7 g6+ Kh6 f7 h3 b6 Bg7 f8B Nf6 Be2 Rh7 Nf3 Nd5 f6 Ra7 f7 Nc6 b8B Qf6 d8N Be6 d7 Rc7 Bb2 c1B Nh4 Kg5 b7 Qf2 Bg4 e2 Be5 e1B Na3 Bed2 Ng2 Rh4 Qf3 Ne3 Bfd6 Nd1 f8N Ba2 Re1 h1Q Nb5 h2 Na7 Bf6 Bg3 Be5 g7 Qhg1 Re3 h1Q Ng6 Bf4 g8R Be5 Kb5 a4 Re8 a3 N6f4 Na5 Ka4 Bd5 Ndc6 a2 d8R Bc4 Bb4 Bg8 Rdd3 Bd5 Nd8 Bg8 Rb1 a1R+ Ba3 Ba2 Bb2 Bd6 Be5 Qh3 Bh5 Qc8 Bg4 Qd7+ Rb5 Qg7 Rbb3 Rb1 Ra3 Qh1 Re7 Bd5 Ra1 Ba2 Re8 Qhg1 Bc3 Qge1 R8e6 Qee2 Nh5 Bf4 R3e4 Be1 Bh2 Ne3 Bd4 Bg3 Nhf4 Ba3 Re7 Qb2 Re8 Rc5 Bd6 Bd2 b8Q Re1 Nd5 Rg1 Ndf4 Nd1 Re1 Rh1 Ne2 Qb6 Ree3 Rf1 Qbb7 Rc2 Bb8 Bac1 Nef4 Rc7 Be5 Qa6 Qb6 Qb7 Bg1 Qe2 Bf2 Bh2 Bg3 Qf2 Bc8 Rf7 Bh3 Rc7 Bg4
R1RB2B1/1K1bn3/3qrn2/8/4R1QQ/1bqBrr1p/3Nq2N/NR1kbN1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 b4 h5 d4 a5 d6 c5 g6 a4 g7 h4 d7 f6 g5 a3 d5 a2 g6 f3 b6 f2 d6 h3 b5 Rh7 b7 Kb4 Kd5 f5 e4 f4 e5 c4 e6 f3 e7 c3 e8N c2 b6 Kb3 Nf6 Ra6 Bg5 Ra8 Ne2 Nc6 b8N Nh6 g8B Ra3 g7 Ra4 b7 Ra7 Nd2+ Kb2 Ng3 c1R Bd3 f1Q Ng4 f2 Nh2 Nf5 Qg4 Rc3 Na6 Qe2 Nc5 f1B Ncb3 Rh6 b8R Ra3 Re1 a1Q Ra8 Qb6 d8R Ne5 d7 Bb4 Be7 Qc1 Na1 Re6 Rg1 Rcb3 Rg2 Qc3 Re8 Ba5 d8Q Bd7 Bh4 Qb8 Qe7 Qbb4 Rec8 Qb6 Qeb4 Qd8 Qbc4 Ne7+ Kc5 Qf8 Rf2 Bg2 Ngf1 Bd5 Bgh7 Qd8 g8B Qf8 Bf6 Qd8 Qh4 Ng4 Bhe4 Qf8 Bg5 Nf6 Bh1 Qh6 Rc6 Bb4+ Kb6 Qg6 Qcg4 Bc4 Bc2 Qgd3 Kb7 Qd6 Bd1 Kc1 Rcc8 Ra6 Rg2 Re3 Rf2 Rba3 Rg2 Bb3 Bc2+ Qd1 Bch7 Rf3 Re5 Qe2 Bd3 Kd1 Rf2 Bc5 Rg2 Bf2 Re4 Bg3 Be3 Be1 Bb6 Qg3 Ba5 Re6 Bd8 Qd6 Nc4 Qe3 Rb2 Qe2 Ncd2 Ra5 Rec4 Rae5 Rb4 Ree3 Rbc4 Qc2 Re4 Qc3 Rb1+
qqr4R/1R4BQ/1NR1BBr1/1qb3N1/1pnRNBbn/5b2/1nK1N2Q/k7 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 a4 Kd6 d4 c5 Kd2 e5 f4 b5 f6 g5 h6 e4 f5 g4 a5 b3 a6 c4 h5 b2 a7 b4 h7 c3+ Kc2 e3 f7 e2 f6 e1Q h6 g3 Qd3 g2 Nd2 Na6 Ne2 g1N Bh3 Ne7 Be6 Nc5 Ra6+ Nc6 Rh2 Be7 f8N Nf3 f7 Rg8 h8Q Nh4 Nh7 Qh1 f8B Rg6 Ng5 Na4 h7 Bb7 Bg7 Rc8 a8N b1B+ Kb3 c2 Nb6 Ne5 Nde4+ Kc7 d6+ Kc6 d7 Nc4 d5+ Kb5 d6 Nb2 Bd2 c1Q Bf4 Qcf1 Qd2 Qc7 d8B Qb8 d7 Bc5 Bdf6 Ba8 d8R Bc2+ Ka2 Bd1 Kb1 Qhg2 Rd4 Bb7 Ng1 Bg4+ Kc2 Bc6 Ne2 Bb7 Nf2 Bbf3 Nfe4 Qgh1 Ra7 Qhg2 Rb7 Qgh1 Na8+ Ka4 Nb6+ Ka3 Qg8 Ka2 h8R Ka1 Qh7 Nf5 Rh5 Nh4 Rh6 Ne5 Ng1 Qb5 Qh2 Nec4 Ne2 Qg1 Rhd8 Qe3 R8d6 Qa3 Rc6 Qaa5 Qg8 Qaa6 Rh8 Qaa8 Qh7
n5Bq/B2rbB1R/1k5N/p3NRQr/1b2RK1N/4r1QR/1q6/1bBn2qN b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 h5 g4 a5 f4 e5 b4 c5 d4 Kc7 b6+ Kb7 b5 h3 g5 e4 d6 h2 d5 h4 g6 h3 f6 c4 f7 c3 f5 c2 d7 Na6 d6 Ne7 f6 Bg7 f8R Rb8 f7 Ng8 Qh5 Nb4 Nf3 Bc3 g7 Be1 Kf4 e3 Re8 e2 f8R Rh6 Qg5 Ra8 Nc3 Nf6 g8B Rh7 Ne4 Bh4 Ra3 e1B Bfc4 Na6 Nf2 Ng4 Re4 Nc7 Rf5 Ne3 Bcf7 Nd1 Qg3 Qf8 d8Q Be7 d7 B1b4 Nh4 Rh5 Rf3 Ra7 Rd3 Na8 Rde3 Bec5 Qdg5 Be7 Rd3 Qg7 Rb3 Qb2 d8N+ Kb8 b7 Kc7 b8N Kb6 Rc3 Rd7 Nbc6 Bb7 Ne5 Ba6 Rhe1 h1R Rce3 Rg1 Nh1 h2 R1e2 Re1 Rd3 Kc5 b6 Bb7 Rf2 Re3 Rg2 Ba6 b7 Kb6 b8B Bc4 Rgd2 Ba2 Rb3 Bb1 Rd6+ Kb5 Rh6 Kc5 Rh7 Kb6 Ng4 Qh8 Nh6 Qb2 Nc6 Qh8 Nf2 h1Q Ne5 Qg1 Nh1 Qg2 Bb2 c1Q Ba3 Qcc2 Bc1 Qa2 Rb2 Qg1 Rh2 Qag2 Rh3 Qb2 Ba7+
5k2/1N2B2Q/2nQ1Kpq/B1RN1RR1/r2rb2b/br3B1B/1b4n1/RN1Nn3 b - - 0 1 illegal: No possible last move, all moves rejected
2Bb2RB/1Q2pn1Q/r3NQB1/bNqRb2R/b7/2r3Rn/q6k/1BQ1Kb2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 b4 Kf7 f4 Kg6 g4 h5 d4 a5 f5+ Kg7 b6 c5 d6 c4 d5 c3 b7 e3 g6 Kh6 f6 Kg5 g7 Kf4 d7 Kg3 d6 e2 g5 c2 g6 h4 f7 h3 b5 a4 b6 a3 Bb2 c1Q Nc3 a2 Nf3 h2 Ng5 Nh6 g8B Qf4 g7 Nc6 b8R Qe3 b7 Nd4 Bh7 Ne6 g8B Qc5 Bh3 Ra6 Qc1 Bg7 f8Q Nf7 Bb1 Nf4 Nb5 Be5 Bgh7 Qa5+ Bc3 Qaa3 d8R Bd7 Bhg6 Qa5 Bg4 Rh3 Ne6 Be8 d7 Bc7 Rbc8 Bb6 b8Q Kg2 Bb4 Rc3 Qb7+ Kg3 Ba3 Nh3 Bb2 Bc7 Qh8 Qa4 Qf6 Qaa3 Rf1 h1B Rg1+ Kh2 Rg3 Bg2 Rb8 Bf1 Ra8 Rc6 Ra5 Rb6 Rda8 Rd6 d8Q Ra6 Qd3 Bc6 Rg8 Bd8 Ra4 Qb3 Rd4 Bd7 Rd5 Be8 Nbc7 Ba4 Nb5 Qbc4 Ng7 Qb3 Bc8 Qc2 Ne6 Qb3 Bc2 Qbc4 Rb1 a1B Qdf5 Qb3 Qh5 Qa2 Qh7 Rb3 Be5 Rc3 Rb4 Bb2 Rh4 Ba1 Rh5 Bb2 Kd2 e1B+ Kd1 Re3 Bd4 Bea5 Bc3 Rf3 Ke1 Ba1 Bb1 Rd3 Bb4 Be5 Bd2 Rc3 Bh6 Qd4 Bg7 Qc5 Bh8
K2n2nn/pN2q3/3n1QQ1/3NbQ1B/1Brq2bB/R4Q2/nR2Nrk1/2B4N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 d4+ Kf6 g4 c5 b4 h5 f4 e5 g5+ Kg7 f6+ Kg6 b6 c4 f7 c3 b5 h3 f5+ Kh7 f6 Kg6 d6 h4 Kd5 Kf5 b7 e4 g6 h2 g7 c2 d7 e3 b6 Kf4 Qf3+ Kg5 Nh3+ Kg6 Nf2 Kg5 Ra3 h3 Be2 Kh4 Nc3 Bb4 f8Q Ba5 f7 Nc6 b8N Qe7 d8Q Bg4 b7 Bc7 Na6 Be5 Nb4 Rc8 b8B Rc7 Qc8 Nd8 Qcf5 Rc4 Rd1 h1Q Rd2 Qd1 Nh1 h2 Bc7 Nh6 g8Q Qg1 Qgg6 Ng8 Bd1 e2 Bb8 e1N Ne2 Nd3 Qfh6+ Bh5 f8B Rh7 Qhf4+ Bg4 Bd6 Rf7 Bc5 Ne6 Kc6 Qf2 d5 Qd4 d6 Nd8+ Kb5 Rf6 Ka6 Rf7 d7 Rf6+ Qc6 Kh3 Nd5 Kg2 Bb4 Rf7 Qe3 Nf4 Bh6 Rf8 Bg5 Rf7 Qgf6 Ng6 Bh4 Nh8 Qeh6 Rf8 Qhg6 Rf7 Rdd3 Rf8 Rdb3 Rf7 Rb2 Rf8 Bcd2 c1N Bdg5 Na2 Bc1 Ndf7 Kb7 Nd8+ Ka8 Rf7 Nhg3 h1N Qb7 Nf2 Nh1 Ne4 Qbc6 Ne6 d8N Nd6 Nb7 Nd8 Q5g5 Rc3 Q5f5 Rc2 Qc3 Rf8 Qb3 Rc4 Qbf3+ Kh2 Qc3 Qh7 Qb1 Qe7 Neg3+ Kh3 Qfg5 Rf4 Q5f6 Bc8 Bh5 Rf2 Qcf3 Bg4 Qbe4 Kh2 Qef5 Kh3 Ne2+ Kh2 Qc3 Kg2 Qcf3+
2kBr2b/Qr3R1q/1N2b2N/3n2R1/1Bq2b2/BNp1Rn2/1n4N1/b1K1RBQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 g4 c5 d6 h3 b6 c4 b7 a4 d5 h4 b5 h2 b6 e4 f6 a3 f7 h3 g5 a2 f5 Bh6 f8B Ra6 f6 Ra7 f7 Ne7 Ne2 Ra3 Rg1 h1N Nf4 h2 g6 Ra4 g7 Ra5 g8N Qc7 Rg5 Ra4 Ba3 e3+ Kc1 e2 Ng2 e1B Nd2 Nbc6 b8Q Nd4 b7 Rb4 Qa7 Nf3 Nb3 Nf2 b8N+ Kd8 d7 h1Q Qdd4 Nd1 Qg1 Rb7 Rb1 Bg7 Nh6 a1B Bb4 c3 Ba3 Nc6 Bfb4 Re8 f8R Ne7 Rf4 Qc4 Rf7 Kc7 d8R Be6 Nd7 Nb2 Nb6 Bg3 Rb8 Bh8 d6+ Kc6 d7 Nd5 d8B Bf4+ Kc2 Qh5 Re1 Qh3 Re3 Qf5+ Kc1 Qh7 Bde7 Kc7 Rd8 Nf6 Rd1 Nd5 Re1 Rf8 Nd7 Re8 Bd8+ Kc8 Nb6+
1r2NB1K/bQNB1B2/3rb2Q/1bqq4/1B6/p6R/nkrN1n2/N2RRR1b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 c3 f5 c2 g7 Kb3 f7 e6 f6 h4 d6 h3 b6 Qe8 d8R Rh7 d7 Ra4 b7 Rhh4 Qd2 Rhf4 Ne2 Nh6 g8B Rab4 Nd4+ Ka4 Nb3 Be7 f8B Rb6 f7 Na6 b8Q Rf2 Qb7 Rd6 Qe3 Nb4 N1d2 Na2 Bb5+ Kb4 Rb1 Bg5 Na1 Qe7 Re1 h1B Re8 h2 d8R Rf6 Bd7+ Rb6 Qh3 Be3 b3 Kc3 b4 Bc6 b5 h1B Rd1 Nf5 Qh6 Nd6 Re1 Ne4 Rd1 Ra6 b6 Ra8 Rf1 Ba4 Rb4 Nf2 Rh4 Qb4 Rh3 Bb5 Re7 Rb8 Bb2+ Kd3 Bc3 c1R Ree8 Qb3 Bcb4 Rc2 Re7 Rf4 Ree8 Rd4 Kf6 e5 Kg7 e4 Kh8 Qc4 Bfd6 Qc7 f8N Qc5 Bf7 Rd5 Be7 Rd6 Nh7 Qd5 Nf6 Qc5 Bc6 Be6 Bd7 Kd4 Bf8 Qd5 Bc5+ Kc3 Bb4+ Kb2 Re7 Bc5 Ne8 e3 Ne4 e2 Nd2 Bf5 Ree3 e1Q Re4 Qc1 Ree1 Bfe4 Qa8 Bf5 b7 Rc8 b8N Be6 Qb7 Ba7 Na6 Ra8 Nac7 Rb8 Nf3 Qe3 Nd2 Qec5 Nf3 Qg5 Bc8 Ra6 Rdd1 Qgd5 Bd7 Rd6 Nd2
B3q3/1N1QqRB1/R4NR1/b2nr3/bp1R2n1/b7/Nr1Bkq1B/N1b1Q2K b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 Kf2 Kf6 Kg2 g5 a4 e5 h4 b5 d4 c5 d6 b3 d5 c4 d7 e4 d6 b2 a5 g4 a6 b4 a7 c3 h6 c2 h5 g3 h7 e3 h6 e2 Na3 b1Q Rh4 e1Q Kh1 Qf2 Bg2 Na6 Ne2 Nc7 Bd2 c1B Nc3 Qb3 Nc2 Ba3 Qg1 Qd5 Na2 Rb8 a8R Qb3 Ra6 Qd3 Ba8 Qe7 d8N Nb5 d7+ Nd6 Nb7 Qde2 d8Q Bd7 Re1 Be8 Na1 Ba4 Qd7 Re8 Rd1 Q2e6 Rg4 Nb5 Rg7 Nc3 Rg6+ Kf7 f6 Nd5 f5 Qe5 Bf4 Qb8 Rd4 g2+ Kh2 Qc8 Bd2 Bg7 Qc1 g1B+ Kh1 Bh2 Qd1 Bc7 Qg1 Kf8 f7 Ba5 Rc4 Ngf6 Rd4 Rg8 h8B Ng4 h7 Bh6 Be5 Qb8 h8B Rg7 Be1 Bhc1 Bh2 Rh7 Be5 Rh3 Bd2 Rb3 Rgf6 Kg7 f8R Rb2 Rg6+ Kh7 f6 Qc8 f7 Qc6 Rg5 Kh6 Rg6+ Kh5 Bg7 Qc8 Rg8 Qc6 f8N Qce6 Nh7 Kh4 Rf8 Qg8 Qf1 Qh8 Bg1 Kg3 Rf7 Qg8 Nf6 Kf3 Qg2+ Ke2 Bh2 Qd6 Rb6 Re5 Ra6 Qe8 Qg1 Qde7 Qe1+
2nb2b1/1Q1Q1qB1/Rr1p4/1nrQr1b1/1K2B2k/NR1b1q2/1R2NNQ1/1N2R3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 Kf6 h4 g5 b4 a5 c4 e5 h6 a4 h5 e4 c5 d6 b6 a3 b7 a2 h7 d3 Kc3 e3 b5 d2 b6 g4 h6 g3 c6 g2 c7 e2 Nh3 g1B Bb2 e1R Nf2 Re3+ Kb4+ Re5 Bd3 Ra5 Be4 Bd7 c8Q Bh2 Re1 Be8 Qd7 Bg1 Qb3 d1B Qd5 Ne7 Bc3 Rg8 h8R Bc2 h7 Kg7 f6+ Kh6 f7 Kh5 f5 Ra3 f6 Bh6 f8N Kh4 f7 Nc8 Ne6 Bc1 f8Q Ra5 Nf4 Qf6 Ne2 Bf7 Qg7 Qf3 Qg2 Bg5 Bb2 Rge8 Rg8 Rd8 h8N Bd3 Rg7 Bg8 Nf7 Rc5 Bc3 Rf5 Ne5 Re8 Nc4 Rfe5 Nca3 Na6+ Kb3 Nc7 b8R Nb5 b7 Bd8 Kb4 Bh2 Rg6 Bf4 Rg3 Bfg5 Bb2 Rf5 Bg7 Ree5 Ra8 Rc6 b8Q Ra6 Qbb7 Rb6 Q5f7 Rc5 Ra6 Rfe5 Qfd5 Qf7 Nd2 Qf3 Rab1 a1Q Rb2 Qd1 Ndb1 Qf7 Ng1 Qg4 Rge3 Qgf3 Ne2 Bc4 Rc3 Bd3 Rcb3
n2bN3/k3bB2/1Np1Q2B/bBBb1R2/rqQ2nKR/2n1q2N/RR6/3r1N2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 a5 d4 e5 b4 h5 g4 a4 g5 a3 d6 a2 g6 c6 g7 h3 d5 h4 f6 h2 b6 e4+ Kg4 h3 f4 e3 b5 e2 f7 e1B f5 Qe8 f6 Be7 f8B Bb7 f7 Kc8 d7+ Kd8 Qd4 Bd2 Qc4 Bdb4 Bh6 Ra4 Nd2 Bc8 b7 Kc7 d6+ Kb6 Bd3 Ba5 Nf1 Na6 b8N Kb7 b6 Nc7 Na6 Na8 Nc7 Kb8 b7 Ka7 b8R Rh7 Rb2 Nf6+ Kg5 Ba6 g8B Nh5+ Kg4 Nf4 d8Q Rh8 Qe6 Bc4 d7 Bd5 Bb5 Rh7 Qc8 Bd8 Qe2 Qe3 Ne8 Be7 d8R Rh8 Rd1 a1B Qe6 Rh7 Ra2 Baf6 Rb8 Bed8 Ba3 Bfe7 f8N Rf7 Qc4 Rf6 Qee4 Rd6 Bf7 Rd7 Qe6 Rd6 Rd4 Rd7 Ne2 Rd6 Rg1 h1Q Nd7 h2 Nb6 Qhe4 Bc5 h1N Rg2 Qb1 Ng1 Qb4 Nh3 Ng3 Rgb2 Nge2 Re4 Nc3 Re5 Bg2 Rf5 Rd1 Rc8 Bc7 Rd8 Bh1 Rdd5 Bcd8 Rh5 Be4 Rdf5 Bd5 Rh4
1q1b1bKQ/3Q3Q/B4b2/NRn1B2p/1R2Q2k/1N1R2R1/3rnB1B/1nr2n1b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 a5 f4+ Kh6 b4 c5 d4 c4 g4 e6 g5+ Kg7 f6+ Kg6 f5+ Kf7 g6+ Ke8 d6 h5 b6 a4 b5 h3 g7 Kf7 b7 h2 b6 a3 d7 a2 d5 c3 d6 c2 Qf3 Ra6 Bf4 c1N Nd2 Qe7 d8Q Ra4 d7 Nb3 Ba6 Ra3 Ne2 Nc1 Rg1 h1N Rb1 a1B+ Nd4 Rd3 Qe4 Ng3 Rb4 Nf1 Nc4 Qe8 Na5 Rd2 Rg3 Ne2 Qc7 Bc3 d8R+ Ne7 Qd7 Rg8 Kd6 e5 Rb5 Rb2 Ndb3 Rd2+ Qd3 e4 Qd4 Nc6 b8B e3 b7 Ne5 Qd3 Bd4 Qe4 Nd3 Bc7 Rh8 b8R Bb7 Rb4 Ba8 R8b5 Nc5 Bb8 Nc1 Bc7 e2 Bb8 e1B Bc7 Kg8 f7+ Kh7 Bb6 Ne2 Ba7 Nb7+ Ke6 Bf6 Bf2 Rg8 Qc8 Rh8 Rdd3 Rg8 Qd7 Qb8 Qe3 Nd5 Qe4 B8e7 f8B Ndc3 Kf7 Bd8 B8d6 Nc5 Bc7 Nb1 Bcd6 Re8 Bde5 Re6 Kf8 Rc6 Kf7 Bg5 f6+ Kh6 Kg8 Rc7 f7 Bb7 Qc4 Bh1 f8Q Rc8 Qe4 Rc6 Rh3 Rc7 Bh2 Bgf6 Beg3 Kg5 Bd6 Nf4 Rhg3+ Kh4 Qff7 Nb7 Qfg6 Rc1 Qh7 Nc5 Kf8 Qa8 g8Q Qb7 Qgh8 Qb8 Bfg1 Bf2 Kg8 B2d4 Bc7 Bfe7 Bf2 Bf8 Qb7 Ne2 Bf4 Bb2 Qbe4 Bbf6 Be5+
1B4Q1/3QNn2/r1n2Q2/3prb2/2Bb3r/nQ1p1NqR/KB5B/RR1k1bR1 b - - 0 1 illegal: No possible last move
4Q3/N2nK1N1/RN1nQ2Q/3q2Bb/2R2Q1q/R2p1p2/1b2Br1r/R1r1bkN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 g5 e4+ d3 b4 d5+ e6 a5 e5 a4 h6 f6 h5 a3 h7 a2 b6 d4 b5 g4 h6 g3 b7 g2 b6 Ra6 Nc3 Qd5 Qe1 Nd7 b8Q Ra4 b7 Qc6 e7 Qe4+ Ke6 f5 e8Q f4 Rh4 f3 Be2 Ra8 Nb5 Qf4 Bd1 d2 Na7 Kc5 c4 Kb4 c5 Kc3 c6 Kd3 c7 Qe4 Kf7 Qd5+ e6 Bb4 Re4 Qg5 e7 Qh4 Rf4 Ngf6 Qe6 Ne4 Rf6 Rg8 h8Q Rg6 h7 Rh6 Rg6 Ke3 Qhf6 Kf2 h8R Kf1 Rg4 Rh5 Qh6 Bc3 Rhg8 Ba5 R8g6 Nd6+ Kg7 d3 Ra4 Bb4 Ra3 Ba5 Rg4 Bb4 Rc4 Ba5 Ba4 d1R Bg5 Rc1 Bd1 Be1 Ra6 Qe4 Kg8 Rh2 Kg7 Qd5 Kg8 Nc5 Kf8 Bd7 c8N Bb5 Q8f7 Be8 Qf4 Bh5 e8N Nd7+ Ke7 Nb6 Ng7 Nd7 Rb1 a1B Nb6 Bb2 Qe8 Rc8 b8R Rc7 Re4 R7c2 Rc4 Re2 Rba1 Rf2 Ne2 g1Q Ra8 Qg2 Ng1 Qh1 R6a3 Rhg2 Nac8 Qh3 R8a6 Qh4 Na7 Rh2 Be2+
5Q2/1Q1Nn2Q/2R2n2/1pq2bB1/1R2Q1pb/kB2RB2/r3b1N1/1KnBq1Rr b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 Kc2 g5 e4 b5 a4 f5 h4 c4 e6+ Kd6 a5 c3 e7 g4 e8Q f4 a6 f3 h6 f2 e5+ Kc7 e6 Kd6 h5 Qc7 h7 Nf6 a7 Bb7 h6 Nbd7 e7 Ne4 Ra4 Ng3 Be2 f1B Na3 b3+ Kb1 b2 Bg5 Rc8 a8B Nf5 Nf3 Ng7 Nh4 Qa5 Rb4 Nc5 Nc4+ Kc7 d6+ Kb8 d7 Ka7 d8Q Ka6 d5 Qb6 d6 Nd3 d7 Rc6 Rg1 Nh5 Ne5 Ka5 Ng2 Ndf4 Qd5 Nf6 Bd1 Be2 Qe4 Qc7 Qc8 Ng6 d8R Ra6 Rd6 Qc5 Rc6 Ra7 Qb8 Bc8 Qb7 Bf5 Nd7 Bg7 Qf8 c2+ Ka2 c1N+ Kb1 Ra6 e8B Ne7 Bf7 Ra7 Rd4 Ra6 Bc4 Kb4 Bcb3+ Ka3 Rb4 Rg8 h8Q Ra4 Qh7 Rh8 Qg6 Ra5 h7 Bh6 Be3 Bg5 Qgh6 Bh4 Bg5 Rg8 h8R Rg7 Qf7 Rh7 Re8 Ra7 Qhf8 Rh5 Bc4 Ra5 Qh7 Rh6 Kc2 b1Q+ Kd2 Qd5+ Qd4 Neg8 Ba4 Na2 Rb6 Qc5 Qb8 Bg3 Bf3 Rh1 Rc6 Bh4 Qb7 Ra7 Re4 Qe1+ Kc2 Nc1 Kb1 Ne7 Bd1 Ra8 Bcb3 Ra6 Rc7 Rd6 Rc6 Rd5 Qc4 Rd2 Qd3 Rc2 Re3 Ra2 Qe4
B1R1n3/1NqkN3/2r1pBqN/1Bn4b/1Rr2NpQ/R2n2Q1/8/R1B1bb1K b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 c4 g5 b4 d5 f4 a4 Kf2 e6 Kg2 d3 h6 d2 h7 a3 f6 a2 c5 d4 c6 g4 f7+ Ke7 f5 d3 c7 Nd7 h5 Ne5 b6 Nd7 b7 Nb6 b8R Nf6 h6 Qd4 b5 Ne8 f6+ Kd6 Ne2 Kd7 Qe1 d1B Na3 d2 Rh3 Qf4 Nc4 Ra6 Qh4 Ra4 Nd6 Nd5 b6 Bc2 b7 d1Q Kh1 Qc4 Ra3 Ra5 Nf4 Be7 f8R Bd3 f7 Qdc2 Be2 Rg8 h8B Bg6 h7 Ra6 Bf6 Bh5 h8N Qg6 Bd3 Qc6 Bb5 Rg7 Rg8 Ra4 f8Q Rc4 Nhf7 Bd8 Nh6 Nb4+ Ne4 Nd3 Qc5 Qf7 Qcf2 Qg6 Qfg3 Be7 Rh8 Bb4 Rg8 Be1 Rh8 Qf7 Rf8 Rg5 Rh8 Qg6 Rg8 Rd5 Nc5+ Kd6 Rf8 Bd7 c8B Qc7 Rba8 Rdd4 b8N Rd5 Rb1 a1N Rb4 Nb3 Bb7 Bc8 B7c6 Ba6 Ra7 Rdd4 Ba8 Rc3 Ra1 Rdc4 Nc6 Rc2 Nb7+ Kd7 Ne7+ Rc6 Ba4 Nbc5 Bb5 Rc4 Rg8 Ng7 Rc8 Ne8 Ra3 Nb2 Rd3+ Rd4 Ba4 Bb5 Rf3 Bf1 Bb5 Rc4 Rc3 Nbd3 Ra1 Qb6 Rcb3 Qc7 Rba3
nbQ5/pn1RQ3/2b1q1qr/3NB1B1/2b3p1/QR2KR1B/2r1Q1B1/1Nk1n2R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Ra3 Ke7 Kf2 Kd6 h4 Kc5 d4+ Kb4 e4 f5 e5 g5 d6 c5 b6 c4 b7 f3 d7 f4 e6 g4 h6 c3 h5 c2 d5 Nf6 h7 Qe7 d8R Qg7 d6 Qg5 h6 Nbd7 b8Q+ Qb5 e7 Ne8 Bh3 Nc5 d7 Qb6 Ne2 Bb7 Nec3 Qe6 Qe2 Nc7 e8B Bd6 Bg6 Be5 Be4 Bd6 Be3 c1Q Bd5 Qc2 Bc6 Qd3 Bc1 Kc4 b4 Kd4 b5 Qdf5 Qa2 Kd3 b6 Qh5 Qc4+ Kc2 Bd2 Be5 Qe2 Kb2 Be4 Bd5 Qb7 Rc8 Qba6 Na8 b7 Bd6 Qa5 Qhg6 b8R+ Bb7 Qaa6 Bc7 Nd5 Be5 Kf1 f2 Kg2 f1N Kf2 Rc7 Beg2 Ne3 Qd6 Nc2 Rf3 Ne1 Qda6 Re8 h8Q Re7 Qe8 Rh7 Qe7 Rh8 h7 Rc6 Rbc8 Bb8 Qa3+ Kc2 Rb3 Rc7 Rf8 Rc6 d8Q f3 Qe5 Kd1 Rc7 Kc2 Qc8 Kd1 Kf1 f2 Rff3 Kc2 Ke2 f1B+ Kf2 Bb5 Bh6 B7a6 Qe3 Nb7 Rd7 Kd1 Bg5 Rc2+ Nd2 Ba4 Qe4 Be2 Nb1 Bc6 Qe3 Rg8 h8B Bc4+ Nd2 Re8 Be5 Rh8 Qd3 Rh6 Ke3 Rb2 Qe2+ Kc1 Qac5 Ra2 Nb1 Rc2 Qa3+
4b2R/B2R1q1Q/Qr3n2/Q2b2Rp/BnBn1nB1/bN1NRpQ1/3K4/k5r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 b4 a5 g4 c5 b6 h5 b7 f5 g6 a4 g5 c4 b5 a3 b6 f3 g7 a2 g6 c3 e5+ Ke7 d6+ Ke6 d5+ Kd7 e6+ Ke8 e7 Kd7 Bh3 c2 Bg4 f2+ Kd2 f1B Ne2 Qe8 Rg1 Bg2 Nf4 Ra6 Qf1 Ra8 Nd3 Nf6 g8Q Bf3 g7 Nc6 b8Q Ra6 b7 Nd4 Qh7 Rb6 g8B Qf7 Ba3 c1N Bc5 Nce2 e8B+ Kd8 d7 f4 Qa7 Kc7 d8R Bd7 d6+ Kc6 b8Q Kd5 Qa5 Kc4 Rg3 Be4 Re3 Kb3 Qc7 Ba4 d7 f3 Qg3 Nf4 Ra8 Bd6 d8R Bd5 Rd7 Bac6 Qe4 Rh6 Qh7 Rg6 Qe2 Ra6 Ba7 Ba3 Qf1 Rb6 Rc8 Ba4 Rc5 Ba8 Rg5 Bd5 Ke1 Kc2 Nd2 Bac6 Rd1 a1N Nb3 Bb5 Rd2+ Kb1 Rde2 Nac2+ Kd2+ Ka2 Re1 Ba4 Rc1 Nb4 Rc8 Qe7 B8e6 Qf7 Rcd8 Be4 Bc4 Bd5 Rc7 Rg7 Beb5 Rg6 Rh8 Rg7 Rd7 Rg8 Nbc1+ Ka1 Bc6 Bb5 Qe2 Rg7 Nb3+ Kb1 Nf2+ Ng6 Bd3+ Ka2 Rf5 Ne6 Qb8 Qe8 Rb7 Rc7 Rfe5 Qf7 Rg5 Nd4 Bcd7 Rc8 Qg3 Nf4 Qf1 Rc1 Rc7 Ba6 Ba4 Bb5 Rb7 Be8 Rd7 Kb2 Ba6 Re1 Qc4 Ka2 Nd3 Rg1 Qc8 Kb1 Bc4 Ka2 Qca6 Kb1 Nbc5 Ka1 Nb3+
3rRk2/1N2n1q1/rN1Rrp2/1N1b3K/3pB1Qn/1B4Nr/1bQ4B/1BRR2q1 b - - 0 1 illegal: No possible last move, all moves rejected
1bbb4/bBpBN1QN/nB3BR1/p1NQ1n2/kr5N/2r5/3R2q1/1q1RKR2 b - - 0 1 illegal: No possible last move
R1Q3b1/2b3B1/Bq1NRKRn/pQBN1p2/3Rpr2/rk6/NB1p2Nn/5b2 b - - 0 1 illegal: No proof kernel
4NQ2/QbK3B1/rR4B1/4p1r1/Q2nN1Nq/1kp1qN2/1B2b1nq/1N4NN b - - 0 1 illegal: No possible last move
N3Q1B1/Q1N2pb1/N1q2rp1/1br3k1/3K1bNQ/1N2R3/NRq1N2n/5n1R b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 Nh6 c4 Ke7 cxd5 Ke8 Ba3 Qf6 axb5 Qd6 b6 Ng8 b5 Qd8 Bb4 axb4 Kf2 Ke7 Ke3 c5 h4 c4 d4 b3 b7 b2 b6 c3 e6 Kf6 d6 c2 d7 c1B+ Nd2 b1Q d5 Na6 b8R Qb2 b7 Qa3+ Kd4 Ra7 e4 Ra8 h6 Nc5 d6 Qa2 e5+ Kf5 e7 Qa6 e8N Na4 e6 Ne7 h5 Ng6 e7 Qc7 d8Q Qaa5 h7 Nf4 d7 Ng2 h6 Nc3 Qa4 Ra6 Ne2 Rc6 Ra3 Nh4 Nb3 Qb5 Qa7 Qg3 Nc7 Rg6 e8N Nb1 Na8 Ra6 Nec7 Bf4 Qe8 Qe1 d8N Bd7 Nc6 Kf6 Nb4 Ra5 Na2 Nd2 Bg2 Ra6 Be4 Qd1 Bf5 Rg8 h8N Kg5 h7 Rf6 Ng6 Qc6 h8Q Qdc2 Ne5 Nf1 Bh7 g6 Ng4 Bg7 Nec3 Rf8 Bg8 Ng3 Ne2 Nf1 Qe4 Rc8 Qe8 Nh2 Qh7 Ng2 Qh8 Ne3 Qh4+ Kf5 Na1 Nef1 Re3 Qe6 Nb3 Bb5 Na6 Rc5 N6c7 Qc1 Rd8 Qc8 b8N Qc2 Nba6 Qb7 Rb8 Qc6 Na5 Ba4 Rb2 Bb5 Qf2 Kg5 Nb3 Qg2 Qe1 Qc6 Qh4+
2Qn2q1/1p2Q1N1/Q1bB1nR1/bQQp2p1/kp1N1QR1/1r3nN1/3Q4/2K4R b - - 0 1 legal: proof: e4 c5 d4 h5 dxc5 f5 exf5 a6 b4 Rh7 g4 Rh6 gxh5 Rh8 a4 Nh6 a5 Nf7 b5 Rh7 b6 Nc6 Bb5 axb5 a6 Ra7 bxa7 Nb8 a8N Rh8 a7 Nh6 Ke2 Ng8 Kd2 Rh7 Ke1 Rh8 h4 d5 Kd2 Kd7 f4 Kc6 c4 g5 h6 e5 h5 e4 h7 b4 f6 Ne7 f7 Bg7 f8Q Qc7 f5 Ng8 f6 Qb6 f7 Bh6 Ra6 Bf5 Na3 Ne7 Nc2 Rg8 h8Q Bg6 Nc7 Bf5 a8Q Nd7 Ne8 Rg7 Ne2 Nb8 Ncd4+ Kd7 c6+ Kc8 c7 Kd7 c5 Qa5 Ng3 Ng8 Rg6 Nc6 Rh4 Qa6 Rg4 Nd8 Kc2 Qe6 Bf4 e3+ Kc1 e2 Qd2 e1N Qa6 Nf3 Qfd6+ Kc8 f8Q Re7 Qde5 Bg7 h6 Kd7 h7 Bd3 Qee3 Be5 Ng7 Nf6 c6+ Kd6 Qe8 Kc5 Qhf8 Qg8 h8R Bb5 Qef2 Ne1 Rh1 Bd6 Qd7 Re3 Qfe7 Rb3 Be5 Kc4 Qff4 Nf3 Qde8 Bc5 Bd6 Bb6 c8Q Nh7 c7 Ba5 Qb8 Nf6 Qba7 Re3 Nc6+ Kb3 c8Q Ka4 Qc5 Rb3 Nd4 Bd7 Qee2 Bb5 Q8e7 Bc6 Qeb5+
1Q2Rr2/1qq5/R1Q1n2B/b1b2q1p/1BB1NQ1q/3B4/R1K1BR1k/Rr6 b - - 0 1 illegal: No possible last move
2R2k1N/1qQ2rn1/R1R1Q3/rr1r4/1N3B1N/6Kp/1R1pb2Q/2QR1Qbb b - - 0 1 illegal: No possible last move, all moves rejected
BNBqq1k1/1R3np1/2nB2R1/1r4Q1/4p3/2BqQ1KR/qB1RQ3/3brR2 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 f6 g4 e6 e4 Ba6 f4 Nh6 e5 Ng8 Nd2 Be7 Ne4 Bc8 Nf2 f5 gxf5 Bf6 Ng4 hxg4 exf6 Rh4 Qd6 Rh3 Qd1 Rh8 Kf2 Kf8 c4 a5 b4 d5 h4 a4 b6 d4 c6 e5 b5 d3 f7 d2 h5 a3 c5 a2 c7 Na6 c6 Qd7 h6 Nb8 h7 Nh6 b7 Qd3 b6 Qd7 Bg2 Qd8 Rh2 Ra5 Kg3 Qd4 Bb2 Ra6 Nf3 Ra5 Qe2 Rd5 Rg1 Qe4 Nd4 Rg8 h8R Nd7 b8R d1Q b7 Ke7 f8B+ Kf7 f6 a1Q f5 Qda4 Bb4 Qa5 B4c3 Kf8 f7 Ke7 f8R Nf7 R8h3 Rb5 f6+ Kd6 Qe3 Qd3 Bd5 e4 Rd2 Nde5 Rgg2 Bf5 c8B Rh8 c7 Q1a2 Nc6 Bg6 Rg1 Bh5 Rf1 Rh6 Rh8 Rg6 Rh6 Rg5 Rg6 Rf5 Kh4 g3 Qe2 g2 Qe3 Nd8 Kg3 Bd1 f7+ Rf6 Bf5 Qb6 c8Q Qc7 f8B+ Qe7 Nb4 Ndf7 Qc4 Nc6 Bfe6 Rf5 Bc8+ Rf6 Na6 g1Q+ Kh4 Qg2 Qg5 Qge2 Qb3 Qd4 Kg3 Qb6 Qc4 Qd8 Qd4 Qd3+ Qde3 Qd7 Ra8 Qd8 b8Q+ Qc7 Qb7 Qd8 Ra7 Qe8 Nb8 Qd8 Bde6 Rf2 Qb6 Re2 Qa6 Re1 Bb7 Qe8 Ba8 Qd8 Bf5+ Kd5 Rb7 Qee8 Be7 Ba4 Bef6 Bd1 Bc8+ Kd6 Nd7 Ke6 Bfe5+ Qf6 Bf4 Ke7 Nb8+ Kf8 Bd6+ Kg8 Qa4 Qfd8 Qc4 Qc2 Qce2 Qcb1 Bde5 Qbd3 Bd6
2k1BRQ1/1Rp1R3/2Q1p2p/1B2q1br/n6B/1q1n1KRR/nBB5/1rQN4 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bb7 f5 Bg7 Nc3 Na6 Nce2 Nb8 Nf4 gxf4 Ra6 Bc8 Ra1 Be6 h3 Bf7 g5 Bh5 Ra6 Bh6 Ra1 Bg4 hxg4 Bf8 Kf2 Kd7 b4 a5 d4 f3 d6 e6 d5 h6 f7 a4 b6 a3 b5 a2 f6 Ra4 b7 Re4 g6 Qe8 g5 Ne7 g7 Re3 g8B Re4 b6 Qc8 g6 Re1 g7 Ng6 Rh3 Nf4 Bh7 Ng6 g8B Re5 Ne2 Qd8 Nc3 Be7 f8Q Rh5 f7 Na6 b8Q Nb4 b7 Qe8 Qa8 Rf5 b8R Nf4 Rb5 Rf6 Bc2 Na6 Rab1 a1N R1b3 Rh7 Bb2 Qb8 Ra3 Bd8 Qc6+ Kc8 Qg7 Rf5 f8R Qb7 Bf7 Nb3 Be8 Nbc5 Qg8 Nb4 Bc4 Na4 d7+ Kb8 d6 Rhf7 Kg3 f2 Qe1 Bf6 d8B Rh5 d7 Na2 Rab3 Be7 Rg5 Rg7 Kf3 Nd3 Rg1 Rgg5 Qe3 Re5 Rgg3 Re4 Qeg5 Re1 Ba6 Rb1 Qc1 Qb6 Nd1 Qb4 Bf6 Qb7 Bh4 Bg5 Bf6 Qb6 Bb2 Qb5 Bc8 Qb7 d8R Qb5 Rd6 Qb6 Ba6 Qb7 Bc4 Kc8 Rd7 Qb4 Re7 Qa3 Rb7 Qc3 B2b3 Qe5 Ne3 f1Q+ Kg4 Ne1 Bb5 Qd3 Bc2 Qb3 Nd1 Nd3 Kf3
R3QRbk/3R2b1/r1p2RN1/3BQKbr/1Q2pQ2/1n3n2/1p1n2N1/2R2NQ1 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 h6 f5 Ra7 g5 Ra8 Bb2 Qe8 Bf6 Kd6 Bd4 Qc6 Be3 Kd7 Bf4 Qf6 gxf6 Nc6 Be3 Nb8 Bg5 hxg5 Kf2 b5 Ke3 e5 Ke4 g6 h4 b4 d4 g4 a4 c6 h5 g3 a6 b3 a7 g2 d6 b2 d5 g5 a5 g4 h6 g3 a6 Bg7 f8N+ Ke8 h7 Kf7 d7 Ne7 d8Q Bb7 d6 Bh6 d7 Bc8 Nd2 Ng6 Qa5 Ne7 d8R Bb7 Ne2 g1N Rc1 g2 Qb4 Nh3 Ng6 g1B Nef4 Bf8 Ng2 Nd7 Bc4+ Nd5 Nf1 Be3 Bb3 Ng1 Rh6 Bg5 Qde1 Rb8 a8Q Nf3 a7 Bg7 Qe3 Ba6 Qg1 Rc8 Qab8 Bc4 a8R N5b6 Qc7 Be6 Bd5 Nc4 Qca5 Rg8 h8Q Rc7 Qac5 Ra7 Qce3 Ra6 Qf4 Ndb6 Rd6 Na5 Rdd8 Re8 Rd7+ Re7 Qb8 Nbc4 Q8b5 Nb3 Qb8 Bf8 Q8b5 Kg8 f7+ Kg7 Q5c5 Kf6 Qd6 Bg7 f8Q+ Rf7 Qe8 Ncd2+ Ke3 e4 Qdc5 Bf8 Qce7+ Kg7 f6+ Kg8 Qec5 Rh7 f7+ Kg7 Qcb5 Bfe7 f8R Bg8 Qbb8 Bf6 Qbe5 Rh8 Rh3 Rh5 Rg3 Kh7 Rg5 Bg7 Rgf5 Bg5 R5f6 Ra3 Kf2 Ra6 Kg3 Nfd4 Kg4 N4f3 Ne7 Kh8 Kf5 Rh3 Qed6 Rh2 Qde5 Rh5 Ng6+
bBN4k/6r1/NRQ3N1/2K1Nq2/3R3R/R2RqN1q/p4n2/q1N1Nnrb b - - 0 1 illegal: No possible last move
2R1B2R/KnB1B1B1/R4rNq/6R1/q1b3R1/1pq2Rbr/3R1pn1/3kBQ2 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 a5 g4 c6 gxh5 a4 Nc3 a3 Nb5 cxb5 bxa3 b4 a4 Bd6 a5 Bf8 Kf2 Kd7 Ke3 g5 Kd4 f5 h4 b5 e4 f4 a4 g4 d6 Kc6 e6 f3 e7 f2 e8R g3 h6 g2 h5 b3 e5 b4 d7 b2 a6 b1Q a5 b3 e6 Qe7 d8B Rh7 a7 Kd6 a6 Rh8 h7 Nh6 Ne2 g1Q Bc7+ Kc6 Rh4 Kb5 Nf4+ Kb4 Rd8 Qc2 Ra5 Qh1 Rg4 Qeh4 e7 Qf5 e8R Qg6 Rag5 Qg1 Re3 Ka4 Bb5+ Kb4 Rf3 Qh3 Qf1 Bd6 Be8 Qf7 Ng6 Rf8 h8B Bb7 Bg7 Qgh2 d3 Nd7 Bd2+ Ka3 Be1 Kb2 Rc8 Rb8 a8R Kc2 a7 Ba6 Rd8 Rb6 Rac8 Bg3 a8R Bc4 Ra6 Nc5 Rdd5 Rf6 Rd7 Ng8 h6 Nb7 h7 Kd1 h8R Ne7 Rdd6 Nd5 Rd7 Nd8 Kc5 Ne3 d4 Ng2 d5 Qg8 d6 Nb7+ Kb6 Qh6 Rca8 Q2h3 Ka7 Qf7 Rdd8 Qd7 Rac8 Qa4 d7 R8f7 Ra8 Re7 Rdc8 Re3 d8B Rd3 Be7 Q3h5 Rc5 Qe5 Rd8 Qc3 Rac8 Bd6 Rcg5 Re3 Rff4 Rg3 Rf3 Rh3 Bd7 Bg3 Be8+ Kc2 Rd2+ Kc1 Re2 Kd1 Rd2+
1N2b2N/1Q1k4/2bb2n1/rn1R1K2/nQb1QQ1Q/2q3b1/RR1Q4/B2RQ1b1 b - - 0 1 illegal: No possible last move
5Nn1/1pK1b2N/2N3Q1/Q1prn1Br/B1N1kN1Q/5nq1/1NR5/N1n3Qr b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 h5 a4 Rh7 f5 Rh6 f6 Rh7 Ra3 Rh8 Rg3 Kd6 Rg2 Bf5 gxf5 Kd7 Rg4 hxg4 Kf2 Kd6 Kg3 Ke5 d4+ Ke4 h4 c5 a6 g5 a7 e5 a5 Qd6 a6 Qe6 h5 Bd6 f8N Qd7 h6 Rh7 f7 Qe7 f6 Nd7 Na3 Rb8 a8N Rd8 a7 Rb8 Rh2 Re8 Nc2 Bc7 d6 Kf5 d5 e4 Nb6 e3 a8N e2 Nh3 e1R Na4 Nb8 N8b6 Qd7 Nf4 Rg7 h7 Qe6 h8Q Rc8 d7 Qe8 d8N Qe5 d6 Re2 d7 Ke4 Na1 Nc6 Nh7 Rd2 f8N Bd6 f7 Be7 Nc4 Rd5 Nab2 Qc7 Bd2 Ne5 Nc6 Rg6 d8Q Rh6 Be3 Rh5 Rc2 Qd6 Qa5 Rh1 Kg2 g3 Qf6 g4 Qh4 Qc7 Be2 Rcd8 Qg1 R8d6 Bd1 Rh6 Nh5 Qd6 Bg5 Qb8 Nf4 Rh5 N8g6 Qd6 f8Q Qc7 Qe8 Qd6 Kf1 g2+ Ke2 g3 Ngf8 Qg6 Nbd3 Qg7 Kd2 Qg6 Kc3 Qg7 Ndb2 Qg6 Qf1 g1N Kb3 g2 Ka4 Ne2 Kb5 g1N Kb6 Nc1 Kc7 Ngf3 Qg1 Rh3 Rd2 Qg7 Ba4 Rh1 Rc2 Qg6 Bf6 Qg2 Bg5 Qg3 Qg6+
N1QN2Q1/Bqn1QBqR/1nnrN3/1Q2p3/8/4QKn1/QQk2p2/1b1N2r1 b - - 0 1 illegal: No possible last move, all moves rejected
4B1bq/1RRBB3/kN2R3/1BrqB3/2Q3R1/QppnB2q/1R4q1/K6n b - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 d5 exf5 d4 f6 d3 g3 Ra7 cxd3 Bf5 d4 Bc8 d5 Ra8 f4 h6 f5 e6 Nc3 Bd6 Ne4 Bf4 Ng5 hxg5 gxf4 g4 h4 Kd7 d4 b5 Kd2 c5 Kc2 Kc7 Kb1 Kb7 a4 g5 d6 g3 d5 g4 a6+ Ka7 f7 c4 f8Q g2 a5 b4 h5 b3 h6 g3 d7 e5 f6 e4 d6 c3 f5 e3 f7 e2 h7 e1Q f6 Nh6 Nh3 g1Q Qd5 g2 Nf4 Qee8 Ra2 Qdb6 d8B Qe4+ Ka1 Qd3 d7 Ng8 Rh4 Qbd4 Be3 Bb7 Qc4 Qf2 Rb2 g1Q Be7 Bd5 d8R Qfg3 Rd6 Qgg6 Re6 Bh1 Rg4 Qc2 Nd5 Qh5 Nb6 Qgg2 Bd3 Qf3 Bf5 Nh6 Bg6 Rg8 h8B Nd7 Bg7 Rc8 Bf5 Kb8 a7+ Kb7 a8B+ Ka7 a6 Nc5 Bc6 Nd7 Ba4 Nc5 Bg6 Qhd5 Bf5 Kb8 a7+ Kb7 a8B+ Ka7 Bg6 Nf5 B8c6 Nd3 Bd7 Rc5 Bh8 Kb7 Bh5 Rg5 Qa8+ Kc7 f8R Ng3 f7 Qcg2 Rb8 Qh3 f8R Qfg2 Qa5 Re5 Rbc8+ Kb7 Rf7 Rb5 Qab4 Ka6 Qa3 Rf5 Be5 Rg5 Bb8 Qh8 Rc7 Qde5 Rb7 Rg7 Rf5 Qc2 Rfg5 Bd5 Rd6 Nh1 Bhe8 Bg8 Re6 Qcg2 Bbd6 Qd4 Rc5 Rg5 Rcc7 Rc5 Be5 Qdd5 Baxb5#
1Q2k3/Rbr1Q1BN/1q3Q2/Q3NN2/rb3n2/5nR1/Nrq3Q1/KNb2nN1 b - - 0 1 illegal: No possible last move
Q7/4nq2/1BB1N1Bn/2Q5/B1r1nqNb/2kBr2Q/1b1Qb1KQ/3Rb1B1 b - - 0 1 illegal: No possible last move
2r1r1N1/2N4n/1RNN1Bn1/1QKB3B/1N2qB1b/Bb3k1n/6N1/2b2bnQ b - - 0 1 illegal: No possible last move
2NQ2b1/KnQn1rN1/1B4r1/3N3r/1p1N4/4k2r/1NRR2qR/R1Rrq1R1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 g3 a3 bxa3 Qd7 a4 Qd6 a5 Qd8 f4 h5 f6 e6 f5 Ba3 Be2 Bd6 Bg4 Bf4 gxf4 hxg4 Kf2 Kf7 Ke3 c5 d4 b5 h4 g5 a4 g3 a6 c4 a5 g2 h5 c3 h6 b4 d6 g4 a7 e5 d5 e4 Kd4 c2 Kc5 g3 h7 e3 a6 e2 d7 e1R d6 Re4 Ne2 g1R Na3 g2 Be3 c1Q+ Qc2 Rf1 Rg1 Qd1 Nd4 Qb1 Nc4 Re8 Nb2 Qe7 Kb6 Rd1 d8Q Rd3 d7 Qe5 Qcc7 Kf8 f7 Kg7 f8N Kh6 f6 Rd2 f5+ Qf4 f7 Qd1 f6 Kg5 Nfe6+ Kg4 f8R Qg3 f7 Nc6 Ng7 Re5 Re8 Bb7 f8R Rh5 Rff1 Na5 Rc1 Rb8 a8N Nf6 Ka7 Bd5 Nb6 Nb7 Nc8 Qde1 Bf2 Rd3 Re2 Rd1 Rec2 Rf8 h8R Bg8 Rh7 Rf7 Rh6 Rc5 Rh2 Rh5 Ne2 Kf3 Bb6+ Ke4 Nd4 Qg4 Rff2 Ke3 Rfd2 Nh7 Ra1 Nf8 Rcc1 Qe4 Rdc2 Rh3 Qf6 Qg6 d8R Qgg3 Rd6 Nd7 Qfd8 Rh5 Rf6 Rh3 Rff2 Qf3 Rfd2 Qff1 Rgh1 g1R Qc3+ Kf4 Ba5 Rg4 Rg1 Rg6 Qc5 Nf6 Kb6 Ke3 a7 Qg2 a8N Nd7+ Ka7 Nd6 Nc7 Rb5 Bb6 Nb7 Qc6 Rbh5 Nd5+ Ke4 Nf6+ Kf4 Qcc7+ Ke3 Nd5+
6r1/1B1Qqn2/n1r3Q1/1K2BBQ1/1Q1R4/1qB2p1N/B1B1QNbn/2r1k2n b - - 0 1 illegal: No possible last move
q1NnK2R/pb6/5N2/b1R1br2/1r6/1NRN2kp/RRN1QB2/2QN2rn b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 g5 h6 gxh6 g6 h7 Be6 Ne2 Bd7 Ng1 Bc8 h4 Bh6 h5 Nf6 Be2 Bf8 h6 Ng8 Bh5 gxh5 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 Kg6 Kf4 Kf7 e5 b4 h4 d4+ Ke4 f4 h3 b6 c4 b7 c3 b5 c2 f6 Ba3 d6 Bf5 b6 Nc6 b8N Bc8 b7 Nb4 d5 Qc7+ d7 Ne7 d8N Qd7 d6 Na6 f5 Bb4 Nd2+ Kf4 Nbc6 e4 b8R e3 Qe2 Nd5+ Ne7 Ndc7 Ra2 Qa4 d7 Ne8 Ndc6 Nec7 d8Q Nd5 Nb3 Ba5 Qc7+ Ke4 Nb4 Nb6 Nd3 Re8 h8R Bb4 h7 Bb7 Nc8 Bd6 Bd2 c1B Be1 Be5 Bf2 Bd2 Qc1 Nc4 Rf8 Bb4 h8R Qc6 Rh5 Nc7 Rfh8 Re7+ Kf8 Ba5 f7 Re6 f6 Nd2 Rh2 Nf1 Rg2 Qa6 Rg3 Rb6 Rf3 Ne6+ Ke8 Rb5 f8N Qc6+ Nd7 Ng3 f7 Nd8 f8N Nh1 Ne6 Rb4 Ned4 Qd5 Nc2 Qc6 Qed1 e2 Qdd2 e1R Ne2 Rg1 Qde1 Bf4 Rc5 Be5 Re3+ Kf5 Nc3 Kg4 Nd1 Qe4 Qe2+ Qf3 N3b2 Kf4 Rec3+ Kg4 Be3 Kg3 Nd3 Ba6 Ne7 Rc4 Nbd4 Nf7 Kf8 Bc8 Rb1 Rb4 Nb3 Qb7 Rbb2 Qb8 Nf6 Bb7+ Ne8 Qd8 Bd4 Rc8 Be3 Rc6 Bd4 Qa8 Nc8 Nd8 Ke7 Rh6 Nf6 Rh5 Ke8 Rf5 Bf2+
1n2BR2/3Rp3/5Rpr/R6q/1n1r1B1b/1B1Qq1QK/NR1R3n/1Bk1r2B b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 Bb7 d4 Bc6 dxc5 d4 Ra4 Bb7 Ra1 Bd5 exd5 Nf6 g4 Ne4 g6 Nd7 g5 Ndf6 g7 Qb8 g8B Ng3 g6 Nge4 g7 Qd8 Nd2 Nd7 Ndf3 Nb8 Ne5 Nf6 Ng6 hxg6 Kf2 Kd7 Kg2 a5 c4 a4 b4 a3 h4 a2 h5 d3 d6 Ke6 b6 Kf5 b7 Ke4 h6 d2 c6 Ke3 b5 Ne4 c7 f5 c8R f4 c5 f3+ Kh3 f2 c6 Nf6 b6 Qc7 d7 Ng4 d8R Ne5 h7 Nc4 Bg2 f1N Rd7 Ne5 Bb3 Ra6 g8B Qd6 c7 Ng3 Bgf7 Ne4 Be8 Nbc6 b8R Bh6 b7 Ng3 Rh2 Qd3 Ne2 Nb4 Bh1 Rd6 Nc3 Bg5 Rf2 Rd5 Rcd8 Nf1 c8B Bh4 Rf6 Rd4 Qc2 Nh2 Qb1 Rf8 h8R Nec6 Rg8 Rf7 Rf8 Qe2 Qf5 Rh7 Qd5 Kd3 Qd6 d1Q Bf4 Nf3 Qd5 Qe3 Qe4+ Kd2 Qd3+ Ke1 Rd5 Rh5 Bf5 Rh6 R8d7 Nh2+ Kg2 Qec1 Kh3 Qe2 Ra5 Qh5 Rbd8 Nb8 Rb1 a1R Rb2 N8a6 b8Q Rb1 Qf3 Qe3 Qe5 Ra1 Bb1 Nb8 Qc7 Nc2 Qc4 Kd2 Qd3+ Kc1 Qg3 Nb4 Qc4 Rd1 Rdd2 Ra4 Qd3 Re1 Rd4 N4a6 Rdd6 Rd4 Rd7 Nb4 Na2+
7B/kN1p1bQq/1QBr2N1/1B6/1n2QQbB/1p1Q2K1/RBpn2B1/nr6 b - - 0 1 illegal: No possible last move
NB1K4/3p1p2/nB1p1pQ1/5R1N/r1B1Np2/1BB1B1Q1/2Nq1Nrb/2n4k b - - 0 1 illegal: Other
4KN2/1R2RR2/1rRb2nq/3Rp1N1/1N2n2r/1R5n/2kBNnp1/2N1rBR1 b - - 0 1 illegal: No possible last move
Rr1r3r/2b4N/BqN1b3/b3QqQ1/1R1R2RN/r1Q3R1/p6k/N1K2R2 b - - 0 1 legal: proof: c4 a5 b4 f5 a4 d5 cxd5 b5 axb5 a4 e4 Nc6 exf5 Na5 bxa5 Qd6 Ke2 Qd7 Ke1 Qd8 g4 h6 f4 Qd7 f6 Bb7 f5 Rb8 g5 Kd8 Bb2 Bc8 f7 Nf6 gxf6 Ra8 Be5 Qd6 Bf4 Kd7 Bg5 hxg5 Qc2 Qb6 Qd1 Qb8 Ra3 Bb7 Ra2 Qd8 Ra1 Bc8 d4 Kd6 Kd2 e5 h4 c5 h5 a3 a6 g6 h6 c4 b6 e4 a7 e3+ Kc1 a2 b7 e2 b8R e1Q h7 g4 Rh3 c3 Rg3 g5 Ba6 c2 Nd2 Qe3 Qe1 Qc7 Nf3 Qe5 Nb3 Qb7 Qc3 Qe8 Nh4 Qbd7 Rb4 Rb8 a8R Qee6 Rb1 Be7 f8R Bd8 f7 Ba5 f6 Qb5 Na1 Qf5 Re8 Be6 f8N Qb6 f7 Rd8 R1b3 Rb8 Rg2 g3 Rg1 g2 Rd8+ Bd7 Rf1 g1B Rf4 Bh2 Rg4 Ke7 d6+ Kf6 Ra3 Be6 d7 Bc7 d5+ Qd4 d6 Ke5 Rf4 g4 Rab3 g3 Rg4 g2 Ra3 Kd5 Rab3 Qb6 Ra3 Rg8 h8Q g1R+ Bf1 Qe4 Nh7 Qf5 f8R Rg3 Ba6 Rh3 Qhg7 Rh8 Rf7 Qh5 Rf1 Qf5 Rf8 Rd3 d8N Rd4 d7 Rd3 Kb2 c1R Nc6 Rcd1 Rd8 Rh3 Qg5 Rd4 Kc1 Rhd3 Rg3 Ke4 Raa4 Rf3 Rg8 Re3 d8Q Rd3 Qc5 Re3 Qh5 Ra3 R3g4+ Ke3 Qc3+ Rd3 Qdg5+ Ke2 Rfg1 Kf2 R1g3 Rdd8 Rf8 Rg8 Rbd4 Rh8 Rac4 Kf1 Rb4+ Kf2 Ng2 Kg1 Nh4+ Kh2 Rf7 Qd3 Rf1 Qe4 Qe5 Qf5 Qg5
B7/1R3QN1/8/QKQb1Q2/1BB1qbQr/4rpBR/k2q3q/nn2rQR1 b - - 0 1 illegal: No possible last move
1Q2NBb1/1BpKn1NN/3b1B2/qQ1rR1r1/Nn6/5nk1/1bN3N1/Q5Bb b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 h5 gxh5 a5 b4 Rh7 b6 Bb7 b5 Bc8 Ra4 Rh8 Rb4 axb4 Ke2 Kd7 Ke3 Kd6 Kf4 g6 d4 b3 h4 e6 f6 b2 b7 Nd7 b8Q Ra3 b6 Ra1 b7 Nh6 f7 Ne5 Nc3 b1B Bg2 Be4 Be3 Ra5 Nge2 Ra4 Re1 Rc4 Qa1 Rb4 Na4 Nhg4 h6 Nd7 h7 Ngf6 h5 Rg8 h8N Rb3 h6 Ne8 h7 Bg7 f8N Rb5 Nf7+ Ke7 h8N Kf6 d6 Nc5 d7 Nd6 d5+ e5+ Kg4 g5 f4 Nd3 f5 Qe7 d8B Nb4 Bg1 Be6 Nd4 Nc8 d6 Rd5 Nhg6 Bh8 d7 Rg7 Bf1 Bh1 Nf4 e4 Ng2 e3 Nd6 Ke5 Nh7 e2 Ne8 Bg8 f6 Qc5 f7 Ne7 f8B Qa5 Nc2+ Ke4 Qa7 Rg6 b8Q Bb2 Qc5 Ke5 Qcb5 Ke4 Rd1 e1B Rc1 Bf2 Re1+ Be3 Bd3+ Ke5 Be4 Bc5 Re2 Bd6 Re1 Nc8 Bde7 Rg7 d8N Rg6 Kg3 g4 Ne6 Rg5 Kh4 g3 N6g7 Rf5 Bd8 Ne7 Kg4 Rh5 Nge3 g2 Re2 Rc5 Bb7 Rd5 Re1 Nf5 Bg5 Ne7 Bf6+ Ke4 Bf2 g1N Ng2+ Ne2 Bg1 Rg5+ Kh3 Kf3 Kh4 Nd4 Re5 Rg4+ Kh5 Kg3 Kh6 Rf4 Kg5 Nf3+ Kh5 Nc8 Kg6 Rh4 Kf5 Rg4 Ng5 Bh7+ Ke6 Bg8+ Kd7 Ne7 Nh7 Rg6 Qa8 Rg5 Qb8
2Rq3k/4qQQr/1n1R1n1R/B3p1Qn/1b2Q2K/n3R2N/6rN/Nn4RR b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 f4 h5 g5 Kd7 g6 Nf6 Bh3 Ng8 Bg4 hxg4 f6 Kd6 f5 Be6 Ra2 Kd7 Ra1 Bf7 gxf7 Rh3 Qf3 Rh5 Qd1 Rh8 Kf2 a5 Kg3 e5 b4 c5 h4 g5 d4 c4 b6 a4 b7 c3 b5 c2 b6 a3 d6 a2 d5 Ra5 h5 Qc8 h6 Nc6 b8N+ Kd8 h7 Rc5 b7 Qc7 d7 Rc4 Nd2 Bb4 Qe1 Qc8 f8Q+ Kc7 d8R Nce7 f7 Nf6 Nd7 Kd6 b8R Rg8 h8R Rc7 Rb1 a1N Qe4 Rg6 Ba3 c1N Nh3 Ncb3 Nf3 Nd2 Qh6 Nc2 Rbg1 Nb1 f8Q Rg7 Bc1 Nca3 Nh2 Qb7 Qe8 Nc8 Qf7 Nb6 Bd2 Qc8 Qfg6 Ke7 Nc5 Rg8 Rf8 Qd8 Nb3 Rg7 Rfg8 Rh7 Rf8 Rc2 Rc8 Ra2 Na1 Rb2 Kf2 g3+ Kg2 g4 Qhg5 Rc2 Rc3 Ra2 Re3 Rc2 Kf1 g2+ Kf2 g3+ Kf3 Qd7 Rc8 Qd8 Bc3 Rg7 Rh4 Kf8 d6 Kg8 d7 Ra2 Rh6 Rd2 Rge1 g1Q Rf1 g2 Kg3 Ra2 Kh4 Re2 Re1 Qf1 Bd2 g1N Bc3 Rg2 Rd1 Bf8 Ba5 Ne2 Rd6 Qe7 d8R Nf4 Rc1 Qc4 Rcg1 Qd4 Re8 N4h5 Rc8 Nh7 f6 Kh8 f7 Qd2 Re6 Qdd8 Rd6 Qb7 Rd4 Bb4 Rd6 Qe7 f8Q+ Rg8 Qff6+ Rg7 Qg6f5 Qdf8 Qf7 Qfd8 Rhg6 N7f6 Rh6+ Rh7 Qgg6 Qef8 Qfg5 Qfe7 Qgg7+
1N2Q1bn/5q2/2B3p1/Q6n/N1NB2B1/KQ3R1b/1Bkn1Q1b/B2rBnq1 b - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 h5 a4 f5 axb5 d5 g4 a5 c4 f4 cxd5 Ra6 Ra3 Rb6 Rg3 Rf6 Rg2 Rf5 gxf5 Nd7 Rg6 Nb8 Rg4 hxg4 e4 Kf7 d4 c5 Kd2 g3 Kc3 f3 Kb2 a4 h4 g6 h5 g2 b6 c4 f6 f2 b7 c3+ Ka3 c2 d6 Ke6 d5+ Kd7 b5 Qe7 b6 Bg7 e6+ Kd8 h6 Qe8 e5 Rh7 f7 Qf8 e7+ Kd7 e8B+ Kd8 e6 Bc3 Rh3 Nf6 Rf3 Nh5 Bc6 Nd7 b8N Ne5 Bb2 c1N b7 Ne2 Nd2 Neg3 Ne2 g1Q Bh3 f1B Bg4 Bh3 Nc4 Nf1 Qb3 Ba5 Nc3 Bc7 Ba1 Qg7 f8B Nf7 d7 Nh8 Bb4 Bh2 e7+ Kc7 e8Q Qf7 Qa2 Rg7 h7 Rg8 Qf2 Rf8 Ka2 a3 Na4 Rg8 Kb3 a2 Be1 Rg7 Bb2 a1N+ Ka3 Nb3 Bd4 Nbd2 Bb2 Qf4 Bd4 Re7 Bb2 Re6 Bd4 Rd6 Ba1 Nf7 h8B Qf5 Bhd4 Nh8 Qee3 Qf7 Qb3 Kd8 Bab2 Ke7 d8B+ Kf8 Bh4 Be6 Bhf6 Rd8 Bg7+ Ke7 Ne3 Kd6 Ba1 Qg8 Bdb2 Qe8 Bgd4 Bg8 Nc4+ Ke7 Rf5 Qf7 d6+ Ke6 d7 Rf8 Bh1 Rd8 Rf3+ Kd5 Bg2 Ke4 Bh1 Re8 d8Q Re5 Qa5 Rc5 Ncb6 Rc1 Nc4 Rb1 Nd7 Rc1 b8Q Rd1 Qe8+ Qe6 Nb8 Qe7+ Qbb4 Qe6 Rf8+ Kd3 Bc6 Kc2 Rf3 Qf7 Qb3+
r1k1n3/q2bK1nB/2Bp4/N1QN2QN/1B2Nq1Q/1q5N/6nN/b1BR1q2 b - - 0 1 legal: proof: d4 a5 a4 c5 dxc5 b5 axb5 f5 e4 h5 exf5 Nc6 b4 Nf6 f4 Qb6 g4 Kd8 g5 Ne4 f6 Kc7 f5 Nb8 Ra3 Ra6 Rg3 Ra7 Rg4 hxg4 Qe2 Ra6 f7 Nf6 Qd1 Ng8 Be3 Qa7 Bd2 Rf6 gxf6 Qb6 Be3 Kb7 Bh6 Qd8 Bc1 Kc7 Kf2 g5 Kg3 e5 c4 a4 h4 e4 b6+ Kb7 c6+ Ka8 c7 Kb7 c5 a3 h5 e3 c6+ Ka8 b5 a2 h6 a1Q h7 e2 b7+ Ka7 b6+ Ka6 Nf3 Qa2 Qd2 Qe7 Bg2 e1N Nc3 Qc2 Nh2 Qa4 Ne4 Nd3 Rd1 Bg7 f8B Ne5 f7 Qa2 f6 Qd8 Bb4 Qa5 f8Q Nf3 f7 Ba1 Qc5 d6 f8N Ne1 Ng6 Qe7 Nf4 Qf8 Nh3 Bd7 c8N Nh6 c7 Qa2 Ne7 Qb3+ Qde3 Qf6 c8B Rf8 Bh1 Ng2 h8Q Rg8 Nd5 Nf5+ Kf2 g3+ Kf3 Qe5 Kg4 Qf4+ Kh5 Rf8 Kg6 g4 Qh4 Ng7 Qd2 Ne8 Qde3 Nc6 Qg1 Nd4 Qe3 Bb5 Bf5 Bd7 b8N+ Kb7 Nc6 Ne6 Na5+ Kb8 Qg1 N6g7 Qge3 Rh8 Kf7 Rg8 Ke7 Rf8 Qcd4 Kc8 Bh7 Ne1 Ndf6 g2 Qf3 g1Q Nc3 g3 Qfd5 g2 b7+ Kc7 b8N Qgf1 Nh5 g1Q Qdg5 Nf6 Bc6 Ng2 Ne4 Rc8 Qc3 Qa7 Qe3 Nfe8 Qec5 Be6 Nd7 Ra8 Ndf6 Bd7 Nd5+ Kb8 Nd2 Kc8 Ne4
BQnB1nNK/5QRn/Q1qbrnr1/1b3pR1/5B1B/2BR3B/3p4/4k1Q1 b - - 0 1 illegal: No possible last move
7B/bn1RK3/BrkRNr2/b1n1R1NN/2n1B1N1/R1n2R2/5q2/4NNnr b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bb7 f5 Bg7 Qa4 Bf8 Qe4 Bc8 Qf4 gxf4 h3 Be6 g5 Bf7 Ra5 Bh5 Ra1 Bg4 hxg4 Qc8 Bc4 Qd7 Bf1 Qd8 Ke2 Kd7 Kd3 c5 Kc4 a5 b4 e5 d4 h5 b6 f3 b5 e4 f7 f2 d6 a4 Kd5 e3 g6 a3 g5 e2 g7 e1N g6 c4 b7 c3 b6 h4 f6 h3 Nf3 h2 Ba6 f1N Nbd2 a2 Bb2 Ng2 Ne1 Nh6 g8N c2 g7 Ng3 Nf1 Nc6 b8R c1N b7 Nhf5 Nh6 Qb6 g8B Ng7 Re8 Qd8 Bh7 Na5 Ng4 N3f5 Re5 Qc8 b8N+ Kd8 d7 Kc7 d8R Nfh4 Be4 Ne6 Nd7 Bc5 f8N Ne2 f7 Nf3 Nh7 Ba7 f8R Nc5 Ng5 Rh6 Ndf6 Nab7 Nh5 Nfg1 Rf3 Rb8 Rd7+ Kb6 Rd1 a1B Rdd3 Qf8 Ra3 Nh4 Bc3 Nf5 Bb2 Rc6 Bc3 Nfd6 Bb2 Nd3 Ke6 Nc3 d5 Nc4+ d6 Qf5+ Ke7 Ndc5 Rd5 Rf8 Re5 Rf6 Rd5 Nb5 Be5 Bc3 Bd4 Ba5 Bc3 Rh6 Bh8 Nc3 Re5 Nh3 Rg1 h1R Rg2 Qf4 Rd2 Rf6 Rdd5 Qe3 Rc7 Qd4 d7 Ng1 d8N Qe3 Rcd7 Qf2 Nde6 Rd6 Nh3 Kc6 Nhg5 Nd2 Be2 Nc4 B2d3 Kb5 Be2 Rb6 B2d3 Kc6 Be2 Ne3 Ba6 Nc4 R5d6#
1n1N4/3Brq2/1K1N1Bb1/B3b2N/5B1N/R1q3Nn/RR2N2b/2B1nbkr b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 h5 gxh5 a5 b4 Rh7 b6 Bb7 b5 Bc8 Qg4 Rh8 Qb4 axb4 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 e6 h4 b3 f6 b2 h6 g4 b7 c6 f7 g3 h5 g2 f5 Bd7 f6 Bc8 b6 Ra3 h7 Re3 h6 Ra3 Rh2 Rb3 Ra3 Rh3 Bb5 Rb3 Ne2 g1N Nf4 Qd7 Nh5 Qc7 Nc3 b1B Ne2 Bg7 f8N Nh3 Neg3 Qf7 Ng6 Ne7 Nh4 Bg6 d3 Re8 h8B Rb1 h7 c5+ Kc4 Ke5 d6 Nec6 d7 Ra1 d8B Nb4 Rha2 Nc2 Bd7 Re7 Kb5 c4 d4+ Kd5 Bc7 c3 Ka5 Kc4 d5 Kd3 d6 e5 Bd8 e4 Kb5 Qe6 f7 e3 f8N Qf7 Ne6 e2 Nd4 Be5 Bf6 e1B h8N Bf2 Bc7 Bg1 Bd8 Bh2 Kc5 Nc6 b8B Ba6 b7 Ne1 Ba5 Bb5 Bbc7 Nb8 Kb6 Ba6 Bc6 Bb5 d7 Ba6 d8N Rb1+ Bb2 Ke3 Bd7 Kf2 Bd6 Rd1 Bc1+ c2 Bc7 Bf1 Bd6 Nc6 b8R Kg1 Rb7 Nb8 Bc7 Qg8 Nhf7 Qg7 Nd6 Qf7 Bcg5 Ra1 Bc1 Rb1+ Ka7 Ra1 Rbb2 Rb1 Kb6 Ra1 Bf4 c1Q Bad2 Qc3 Bc1 Nf2 Kb7 Rb1 Ba5 Nh3 Kb6 Nd3 N6b7 Be2 Ngf5 Kf2 Bcd2 Rh1 Bc1 Kg1 Nfg3 Ne1 Nd6 Bf1 Nde2+
1q4Qq/NbBBK3/N3nBNp/2rB3N/6kn/B1R3N1/q3nr1N/5b1B b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 b4 Na6 g4 Kd7 h4 Rb8 f4 Bg7 f5 Bb7 Ra3 Ra8 Rf3 Bf8 Rf4 gxf4 g5 Bc8 g6 Bh6 Bc4 Ke8 Bf1 Bg5 hxg5 Nb8 Ke2 Kd7 Kd3 a5 Kc4 c5 d4 e5 g7 h6 g6 e4 d6 a4 Kd5 f3 f7 f2 f8N+ Ke8 d7+ Ke7 b6 Kf6 Kd6 e3 b5 Kg5 b7 a3 d5 c4 f6 a2 f7 a1Q b6 c3 Bb5 f1B Nd2 e2 Qb3 e1Q Ne4+ Kg4 Nf3 c2 Ba3 c1N Nh7 Qe3 f8N Kf5 Ng3+ Kg4 Rh3 Ne7 g8B Qe1 g7 Ng6 Nf6+ Kf4 Nfh5+ Kg4 Bc6 Qe4 Be6+ Qf5 g8B Ne5 Ng6 Qe8 d8N Bd3 Bed7 Na6 b8B Nc7 b7 Ne6 Bc7 Qc3 b8N Bb7 Na6 Rc8 Bf7 Qg8 Ke7 Qf4 d6 Ne2 Bd5 Qc2 Nc6 Qa2 Na7 Qg7 Qc4 Rhf8 Qb3 Qh8 Bfe8 Qe3 B7c6 Bc4 d7 Qb6 d8B Rf4 Bed7 Bb5 Nfh4 Rf2 Bh1 Nf3 Bd5 Nfd4 Nf3 Nf5+ Kf7 Nh4 Bf6 Bd3 Ke7 Qb4+ Bd6 Rc5 Bc7 Qf4 Qc4 Nc3 Qb3 Bf1 Qc4 Ne2 Qb3 Ba8 Qb8 Bb7 Qg8 Qe5 Rh2 Nc1 Bd6 Rb2 Rc2 Qf4 Rc4 Rf2 Rc3 Ne2 Bb8 Ba8 Bbe5 Qb4 Bf4 Qb8 Bc7 Bb7 Nh2+
1kB1bQ1N/1qB1n1p1/BNb1qNN1/N1pq4/2BB1r2/7R/1r1B3K/b6N b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 f5 fxe5 h5 a4 f4 axb5 Nc6 g4 Nce7 Ra6 Rh6 Rg6 Nf5 gxf5 Rh8 Rg4 hxg4 Kf2 Kd7 Kg2 a5 e4 c5 d4 Kc7 h4 g3 h5 a4 b6+ Kb7 d6 a3 d5 a2 b5 a1Q e6 Qa3 f6 Be7 f7 Qa6 f8N Qa7 d7 Qb8 h6 Qe8 d8B Nf6 d6 Qh5 e5 Qe8 h7 Ne4 d7 Ra6 Ne2 Qa8 Qd6 Ra3 Nd2 Rd3 Ng6 Rg8 h8N Nf6 Nb3 Rf3 Rh3 Qa4 Bd2 Qa7 Na5+ Ka8 Bc7 Rb3 d8B Bf8 e7 Nd7 e6 Qf7 e8B Nf6 e7 Qe6 Bf7 Bd7 e8B f3+ Kh1 g2+ Kh2 f2 Ng3 Rb2 Nh1 Bc6 Bd7 Nd5 Bc8 Qa6 b7+ Ka7 b8N Be7 Bd3 f1B Nd7 Bf6 Qf8 Ne7 Nb6 Qb7 Be5 Be8 Bd4 Kb8 Bc4 Be2 Bd3 Bf3 Bf1 Bfc6 Bc4 Qa8 Ba6 Qd5 Be6 Qb7 Bc8 Ra2 Bg1 Ba1 Bd4 Qe6 Nd5 Rc2 b6 Rb2 Nf6 Qd5 Qf7 Rf8 Qg8 Qbd7 b7 Rf7 Qf8 Q7e6 Ng8 Rf4 Nf6 Ka7 b8N Ka8 Nbd7 Ka7 Rh7 Ka8 Nb6+ Kb8 Ng4 g1Q+ Kh3 Rf5 Nf6 Qb1 Kh2 Rf4 Rh3 Ra2 Na4 Qb7 Nb6 Rb2 Bc7+
1Rq1n3/3rRBpR/1pB5/6B1/B2N3K/2b1BBrn/N2NR3/k1q1q1Rq b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 c4 d5 cxd5 f5 b4 f4 bxa5 Bf5 gxf5 Ke7 Qb3 Kf7 Qf3 Ke8 Qg4 hxg4 Kf2 Kf7 d4 c5 h4 b6 a4 f3 Kg3 c4 e4 c3 d6 f2 e6+ Kf6 h5 c2 a6 Nc6 e7 Na7 e8B Qc7 d5 Ke5 f6 Kd4 h6 Qd7 f7 Nc8 a7 Qb5 e5 Nf6 e6 Qa5 h7 Nd7 e7 Ne5 d7 Qd2 d8N Qd3+ Nf3+ Kc4 d6 Kb3 a5 Qg6 d7 Qf6 a6 Qc6 Ne6 Nd3 d8B Ne1 Rh2 Qd5 Kh4 g3 Nc3 g2 Bfb5 f1Q Be3 Kb2 Na2 c1Q Ned4 Qd7 Nd2 g1Q Re2 Nd6 Ba4 Qdc8 Bec6 Nd3 e8B Qgg2 Bdg5 Nf2 Bf3 Rg8 h8R Nh3 Rh7 Qgh1 Bec6 Be7 f8R Ne8 Rf7 Bb4 Re7 Bc3 Bh5 Rf8 Bf7 Rb8 a8R Rb7 a7 Rd7 Rb8 Qfe1+ Kh5 Rh8 a8B Rf8 Bf3 Rh8 B8c6 Rf8 Bc4 Rf6 Bf7 Rg6 Bgf4 Rg3 Bg5 Qc2 Rd1 Qc1 Kh4 Ka1 Rg2 Qf2 Rdg1 Qfe1 Re2
1NbN3q/4p3/NKBRNp1b/2R3R1/r2BRR2/q4n2/1kn1p3/N2qN2B b - - 0 1 illegal: No proof kernel
B1bQB3/1QN2RN1/7q/B7/k1r3b1/1r1b1qN1/rq2Q1q1/1QQ1K1NB b - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 g5 h4 e5 g4 Ba6 e4 Nh6 a4 Qc8 f4 Bd6 d4 Bf8 d6 Nc6 axb5 Bg7 Ra2 Qd8 Rf2 Ne7 Rf3 Nd5 exd5 e4 h5 Ng8 Rf2 Be5 fxe5 Ne7 Rf4 gxf4 g5 Ng6 hxg6 Bc8 b6 Kd7 b7 c5 b8Q a5 b5 h5 b6 f5 g7 c4 g8Q e3 b7 f3 g6 h4 g7 a4 Bd2 e2 Qc1 a3 Bg2 a2 Nc3 a1Q Ne4 h3 Ba5 h2 Ng3 f4 Qf8 c3 g8B c2 Qa7 Qa3 b8Q+ Qc7 Qbb1 Rh4 Qab7 Qb2 Bh7 Ra6 Be4 Rb6 Qh6 Rb3 Qd1 c1Q e6+ Ke8 Qg5 Qg7 e7 Qc6 Qe5 Qh6 Qdc1 Bg4 Nh3 Qcc2 Rf1 h1Q Ng1 Qh3 Qe6 Qc6 Bh1 Qg2 Qe5 Rh2 Qb5 Kd7 e8B+ Kc8 Qa6+ Kb8 Qc8+ Ka7 d7 Rh4 Qcb8+ Ka6 d8N Rh2 Qa7+ Kb5 d6+ Ka4 d7 Rh4 Ne6 Qb7 d8Q+ Qc6 Bc2 f2+ Kd2 e1R d5 Qf3 d6 Re2+ Kd1 Qg2 d7 f3 Be4 Qa8 Ng7 Qb7 Re1 f1B Qee7 Qa8 Qb7 f2 Bf3 Rc2 Qe2 Rh2 Bd5 Qf3 Be4 Bfh3 Bd5 f1B Be4 Bfg2 Rf1 Rc4 Rf2 Bf1 Ke1 Qg2 Rf7 Qf3 Qbb8 Qac6 Qbb6 Qcg6 Ba8 Rg2 Qb7 Qge4 Qee3 Bd3 Qe2 Rf2 Qdc7 Qec6 d8N Bc8 Nde6 Bg4 Qd8 Qg2 Rd7 Qcf3 Nc7 Qd4 Qf1 Ra2 Qe2 Qb2 Rf7+
1kr1bQ2/1bq2Qr1/B5R1/R1R2BB1/4BnpB/4Q3/K3Q1pR/1Nr3b1 b - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 f5 a4 a5 bxa5 d5 axb5 f4 c4 h6 cxd5 Nc6 g4 Nce7 Nc3 Nf5 gxf5 h5 Ne4 Be7 Nf2 Bf8 Ng4 hxg4 h4 Kd7 d4 c5 Kd2 Kc7 Kc3 g5 Kb3 c4+ Ka2 f3 e4 c3 f6 c2 h5 f2 e6 g3 e7 g2 e8B g4 a6 Be7 d6+ Kb8 a7+ Kb7 f7 Bd7 f8Q Qc8 b6 Qc5 e5 Rd8 a8B+ Kb8 e6 Qe5 b7 Qg3 d5 Bb5 d7 Qe3 h6 Kc7 b8R Bb4 e7 Ba3 h7 Nh6 Nf3 Qf4 Qf7 Rg8 h8Q Bb2 Rc8+ Kb6 d6 Ka7 Nd2 Bc6 Rh2 Ba4 Qe2 Bg7 Be4 Bf6 Nb1 Rg7 Rc5 Kb8 Qhf8 Rc8 d8B Nf5 d7 Qc7 Bg5 c1R Qe3 Be5 Ba6 f1B Qh3 Bfb5 Bh4 Bc6 Bf3 Ng3 Qd5 Bd4 Ka3 Rf1 Bg6 Rh7 e8Q Bh8 Qe2 Rd1 Bfe4 Rh1 Bdg5 Rc1 d8R Bb7 Bgf5 Be8 Rd6 Nh5 Qdf7 Nf4 Rg6 Bd4 Qc3 Bf2 Qce3 Bg1 Kb2 Rg7 Raa5 Bec6 Kb3 Be8 Ka2
1B2N1k1/R2nRqqQ/2prb1Q1/1r1B1r2/1pBR1R2/Q4Q2/1b1K3R/3B4 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 d5 g4 Nf6 c4 Rg8 cxd5 Kf7 d6 Rh8 d7 Ng8 gxh5 e6 d4 c6 d5 Ke7 Nc3 Na6 Nce2 e5 Nd4 Nc7 d6+ Kf7 dxc7 exd4 Qb3+ Kf6 Qd1 Ke7 f4 Kf7 h4 g5 a4 b5 a6 b4 a5 g4 h6 d3 a7 g3 f6 g2 a6 Rh7 h5 Rb8 a8B Rh8 h7 Ne7 f5 Rb7 a7 Bg7 h6 Qg8 d8R Bf8 Qh5+ Ng6 Ne2 g1R Ng3 Rb6 Rd4 Ra6 Ne4 Ra4 Bf4 Bd7 c8B Bd6 Kd2 Ra6 Be2 Ra5 Bab7 Bc5 a8Q Be7 Rh2 Rg2 Nd6+ Kf8 f7 Rg4 Bd1 Bd8 Ba6 Re5 Bc4 Re6 Ne8 Bh4 Ra7 Rf6 Bb8 Ne5 Qg6 Be6 B8a6 Qg7 Bd5 Rg5 Bac4 Rg8 h8R Nd7 h7 Bg3 Re2 Be5 Rh2 Ke7 Re2 Rf8 Rh2 Rh5 Rg8 Rg5 h8Q Rh5 Qhh7 Rg5 Re4 Bb2 Rd4 Rh5 Nd6 Rd8 f8R Qf7 Ne8 Rg5 Ke3 d2 Rg7 Rh5 Qb7 Rg5 Qa6 Rh5 Qa3 Rg5 Ba4 d1Q Bab3 Qg4 Kd2 Rc8 Bc2 Rc7 Bd1 Rb7 Qgh5 Rh6 Q5g6 Rb5 f6+ Kd8 Rh8 Rf5 Rh4 Qg3 Rhe4 Qc7 Rf4 Qb7 Rgg8 Qg7 f7 Qc7 f8Q Qf7 Qfg7 Ke7 Qg2 Qe5 Qgf3 Qf6 Qg1 Qe5 Rg2 Qeg7 Re2 Rg6 Qg8 Rgf6 Rhh2 Rh6 Qh7 Kf8 Qg5 Rg6 Qgh6 Rgf6 Q7g6 Kg8 Qhh7+ Kf8 Be4 Bd5 Bed3 Rd6 Re7 Be6 Bcb3 Nb6 Bd5 Nd7 Qhh6 Kg8 B3c4 Rb7 Qhh3 Rb5 Qhh7+
4nq2/K4N1Q/1R2N1Nb/1B1pR3/2Q4r/Qrn1b1R1/4QQ1k/nN1n1qR1 b - - 0 1 illegal: No possible last move, all moves rejected
1r5q/QN3Q2/QqQnr3/1Npn2Nq/1B6/B2KR3/qB3NbQ/q2k3B b - - 0 1 legal: proof: e4 h5 c4 b5 b4 f5 exf5 d5 cxd5 e6 f4 Be7 a4 Kf7 axb5 Bf6 g4 Bc3 g5 Bf6 gxf6 Kf8 Ra3 Kf7 Rg3 Ke8 Rg4 hxg4 Ke2 Kd7 h4 Kd6 d4 a5 b6 g5 b7 e5 h5 e4 f7 a4 f8Q+ Ne7 f6 e3 f7 a3 f5 g3 b5 a2 b6 a1Q h6 c6 h7 g4 f6 g2 Nh3 g1Q Qa4 g3 Na3 g2 Qa6 Qc3 Nb5+ Kd7 d6 Ke6 d5+ Ke5 d7 Ke4 d6 Qc5 Qh6 Re8 f8B Qh2 h8B g1Q+ Bg2+ Kf5 f7 Kg4 Ba3 Nd5 Kd3 e2 Bhb2 e1Q Nf2+ Kg3 Be4 Qf6 d8N Nd7 b8Q Qh8 b7 Qa1 Qba7 Re6 b8Q N7b6 Nb7 Nc4 d7+ Nd6 d8N Qgg2 Re1 Qh5 Bf3 Qb6 Re3 Bd7 Qc7 Rb8 Be7 Qgh2 f8Q Be8 Nf7 c5 Bd8 Qg2 Ng5 Bc6 Qff7 Qgh2 Bdf6 Kf4 Bfc3+ Kg3 Be2+ Kg2 Bf3+ Kf1 Bh1 Qg2 Kc2 Qgh2 Bcb4 Qg2 Rc3 Ke1 Kd3 Qgh2 Na5 Ba8 Qc6 Qg2 Nb7 Qgh2 Nfe4 Kd1 Rc2 Rf6 Re2 Q5h3+ Re3 Rf8 Be5 Ne7 Nd8 Qha2 Beb2 Re6 Qcc7 Qf3 Qh3 Qfh5 Qh2 Bd5 Nb7 Rb8 Ng3 Bg2 N3e4 Nd5 Qc8 Qa5 Qcc6 Qb6 Nf2#
2B4R/6pN/rR1nn3/b1r2k2/r2N4/Q1b3nK/1QN1Q2n/Q1QNR1Rb b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 f4 h6 f5 Bb7 g5 Kc8 b3 Qd6 Bb2 Qf6 gxf6 Ba6 Bd4 Kd7 Be3 Bc8 Bg5 hxg5 Kf2 e5 Kg2 a5 d4 c5 h4 c4 b4 g4 h5 g3 b6 c3 d6 e4 d5 a4 b5 c2 h6 c1R h7 a3 b7 a2 b6 e3 Na3 e2 Nh3 e1B Ba6 Ba5 Re1 Nc6 b8R Rc2+ Nf2 Rc3 b7 Rc5 Nc2 Bd2 Qe2 Rc4 Kh3 g2 Nd1 Be7 f8Q Na5 f7 Rc5 f6 Nh6 Qg8 Ra7 f8Q Nc4 f7 Bf6 Rb1 a1N Rb6 Na3 Ra8 Bb4 b8Q Nb5 Bb7 Ra2 Ra4 Ba5 Rg4 Bfc3 Qa8 Bab4 Qa3 Nf5 Qc1 Ra3 Ba6 Bb7 Qb8 Nh6 Qgf8 Nb3 Rg5 Rg8 h8R Ra4 Qa7 N3d4 Qfe7+ Kc8 f8N Ng4 Nh7 Ba5 d7+ Kc7 Q7e3 Ra8 d8N Kd7 d6 Ne6 Nc6 Nh2 Qb8 Ra7 N6d4 Bd5 Bb7 Ra6 Qa1 Be4 Qec1 Bf3 Qf8 Bc6 Qcb2 Bd5 Qf4 Bf3 Qfc1 g1N+ Kh4 Bh1 Kg3 Ngf3 Kh3 Nh4 Rgg1 Nf5 Qaa3 Ng3 Qba1 Nbc7 Qa1b2 Ne8 Bc8+ Kd8 d7 Ke7 Qca1 Nd6 d8Q+ Kf7 Qc7+ Kg6 Nf3 Kf5 Qc6 Rd5 Qcc5 Re5 Qce3 Rb5 Qec1 Rc5 Nfd4+
2K1Q3/1r2Bn2/1Q3b2/p1R2RnB/4QnRB/N1r5/RB2rBp1/bb2Q2k b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 f4 h6 g5 Kd6 f5 Kd7 Nc3 h5 Ne4 Qe8 Nf2 Qd8 Ng4 hxg4 Qb3 Kd6 Qf3 Qd7 Qd1 Qc6 Bc4 Kd7 Bf1 Qf6 gxf6 Rh6 Ke2 Rh5 Ke1 Rh8 Ke2 Kd6 Kd3 Ke5 Kc4 Ke4 Kc5 g5 d4 e5+ d6 a5 h4 g3 b4 g4 b6 g2 b7 g3 h5 c6 Kb6 c5 Kc7 c4 b5 c3 d7 c2 d8Q Bg7 f8Q Nd7 b8Q Ra6 h6 Rd6 b6 Rh7 d5 Rh8 b7 Rb6 d6 Rb5 f7 Bf6 h7 Rd5 Be3 c1B Qa8 Ne7 b8R Bd2 Qe1 Ng6 Ne2 Kf3 Ra2 g1N Nc3 g2 Rb5 e4 Bf2 e3 Qfe8 e2 f8B Nde5 d7 Nf7 Nb1 Bb2 f6 Bdc3 Rc5 Nh3 Na3 Ngf4 Be7 Nhg5 Rh4 Ba1 Rg4 Ba6 Qdb8 Bd3 d8B Bb1 Qb6 Bcb2 Kb7 Rd7+ Kb8+ Rb7+ Kc8 Rg8 h8B Rg6 Bg7 Rh6 Bh8 Rh3 Bg7 Nh6 f7 Bf6 f8R Nhf7 Qd2 e1R Be2+ Ke4 Bd1 Re2 Qe1 Kf3 Bd6 Be7 Bb2 Bf6 B6e7 Ke4 Rh8 Rc3 Rh5 Kf3 Qb8 Ngh3 Rf5 Nhg5 Qe5 Ne6 Rg7 Neg5 Qe4+ Kg4 Rg6 Kh3 Rg8 Kh2 Rg6 Rec2 Bh5 Re2 Rg8 Nge6 Rg3 Neg5 Rg4 Ngh3 Bc1 Bg7 Beh4 Bf6 Bb2 Nhg5 Qd2 Kh1 Be7 Rc2 Qc3 Rc1 Qd2 Rc3 Qe1+
1Q2Q3/1Q1N2rn/rn1krnQ1/6r1/qpp3N1/B1R1BB2/B1Bb1K2/4N2N b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 h5 a4 Rh7 f5 Rh6 f6 Rh7 Ra3 Rh8 Rg3 Kd6 Rg2 Bf5 gxf5 Kd7 Rg4 hxg4 d4 b5 h4 e5 a6 g5 a7 c5 a5 g3 a6 e4 d6 g2 d5 e3 h5 g4 h6 g3 h7 e2 Nf3 g1N Qb3 g2 Be3 Bg7 f8B Qb6 f7 Bb2 f6 Qc6 Rh3 Bd4 Nbd2 Be5 Kf2 e1R Ne4 Qb6 Ng3 Bd4 Bc4 Bc3 Nh1 Rc1 Ne1 Kc8 d7+ Kc7 d8N Kd7 d6 Bd2 Nc6 Bc3 Ne5+ Kc8 d7+ Kc7 Ng4 Kc6 d8Q Nd7 Qe8 Nf3 Qb2 g1R Ba2 c4 Ba3 Qb8 f8N Bd2 Qg6 Ng5 f7+ Ngf6 Qb4 Rg8 h8Q Nb6 Nd7 Rg3 f8Q Nh7 Qfe8 Rg7 Qbe7 b4 Qee4+ Kd6 Qb7 Qd8 Qhg8 Rc8 a8B Ra1 a7 Rc5 Qh8 Qc7 Qeb8 Re5 Qhe8 Ree7 Qa6 Re5 Be4 Re6 a8B Rg1 Qab7 Rg3 Qbd8 Qc6 Bc2 Rg1 Qbc8 Qb5 Bf3 Qa4 Qb7 Rg3 Nh2 Rg5 Ng4 Rb1 Qda8 Rb3 Qaa7 Rd3 Qaa8 Rdd5 Rg3 Ra5 Qad8 Ra6 Qdc8 Ree7 Qcb8+ Ke6 Bc5 Re5 Bfe4 Rh5 Rc3 Rg5 Qec8 Re8 Bf3 Ree7 Be3 Re8 Q8a7 Kd6 Qca8 Re4 Qae8 Re6 Qab8#
1k3Nr1/rq1N3N/Rpb1Q3/1R3QpQ/3QR1qp/Nb2B3/3n4/1RK1nQ2 b - - 0 1 legal: proof: c4 a5 b4 d5 bxa5 f5 cxd5 f4 d6 e6 d7+ Kf7 g3 Nh6 gxf4 Ng8 f5 Ke7 h4 g6 d4 Qe8 d5 Bg7 h5 Na6 h6 Qf8 hxg7 Nb8 d6+ Kf7 Bg2 Qd8 Bd5 exd5 Kd2 c5 a4 h5 e4 d4 f4 g5 f6 Ke6 f7 d3 f8N+ Kf6 a6 h4 a5 c4 e5+ Kf5 e6 b6 a7 Na6 e7 Nc5 e8Q Qf6 d8Q Qh6 d7 Ne6 a6 Nf6 g8Q Ng4 Nh7 Nc5 Ra5 Bb7 Na3 Qh5 Qc8 Qh6 d8Q+ Qe6 Qf1 Ne5 Rb5 Bc6 Qd4 c3+ Kd1 d2 Nf3 Ncd3 Qh5 Ne1 Rg1 Rb8 a8R Rb7 a7 Re7 Qge8 Rg8 Rb8 Rc7 a8R Ra7 Rb7 Qd7 Rc7 Qe6 Re7 Qd7 Re6 Qd5 Qe7 Nc4 Ne5 Qe4 Nd7+ Qd5 Re4 c2+ Ke2 d1B+ Kf2 Ra5 Be3 c1Q Ra6 Bb3 Ke2 Nd2 Qec5 Qb2 Qc2 Qc3 Kd1 Qc4 Kc1 Qe2 Qce8 Qg4 Qb1 Qe5 Qc8 Ke6 f5+ Ke7 f6+ Ke6 Qdb2 Kd6 f7 Qd5 f8N Ra4 Qce8 Kc7 Qe6 Kb7 Qd4 Kc8 Nc5+ Kb8 Qff5 Ra5 Qbd3 Qd7 Qdf1 Qb7 Ncd7+ Kc8 Qe2 Qf4 Kb2 Qg4 Ra7 Ng2 Rb1 Ne1 Qef1 Ra6 Kc1 Ra4 Raa5 Kc7 Rb4 Kc8 Rab5 Ra7 Ra4 Kc7 Ra6 Kc8 Ndf6+ Kb8 N6d7+
4RqN1/7R/3pRRBp/1NNr4/1rbN1k2/2qqr2B/R3B2K/1qB3N1 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 c4 e5 c3 dxc3 Ba6 c4 Bb7 c5 Bc8 Qe2 d6 Qd1 Kd7 Ra6 Ke6 Ra1 Kf5 e6 Nd7 exd7 Ke6 f4 Kf6 Qd4+ e5 Qd1 Ke7 Ra6 e4 Bd2 Ke6 Ra3 Be7 Be3 Bf6 Ra2 Ke7 Bc1 Kf8 Ra1 Be7 h4 g5 g4 Ba6 Qd2 Bc8 h5 Bf6 Qh2 Be5 fxe5 Ne7 Qf4 gxf4 g5 Ng6 hxg6 Ke7 Kf2 Ke6 Kg2 Kf5 c4 a5 b4 e3 e6 f3+ Kh2 f2 e7 f6 e8R a4 b6 a3 g7 e2 g8R e1Q g6 a2 b5 Qd1 g7 Qe7 d8R Qc2 c6 Qe6 c7 Qce2 c5 Ra6 c6 Qb2 b7 Qd5 b8N Ra8 b6 Qdd4 b7 Ra5 Na3 Rd5 Nd7 Qd3 b8N Qbc3 Re6 Ba6 c8B Bc4 Be2 f1R c7 Rf3 Nc6 Re3 Nd4+ Kf4 Nc5 f5 Rde8 h6 Nab5 Rh7 Ba6 Rh8 c8B Rh7 Rgf8 Rh8 Rb1 a1Q g8N Qa2 Rb2 Qab1 Rf7 Rh7 Ra7 Rb7 Ra2 Rb6 Rh7 Rb8 Nc7 Rb4 Bab7 Kg5 Ba6 f4 Ncb5 f3 Rf6 f2 Bh3 f1Q Bac8 Qfd1 Bcf5 Kf4 Bg6+ Qf5 Ngf3 Qdd2 Rf1 Qdd3 Rfe6 Qf7 Ng1+ Kg5 Rff6 Qf8 Bhf5 Kf4 Bh3+
Br4RN/bk2b3/B4q1N/2qR2r1/1B1NR1n1/BN3p1n/1Rr1R2N/3b1K2 b - - 0 1 illegal: No possible last move
3b2Nk/4RBq1/R4rQr/2R1BRNp/bQ6/2RqPB2/2b5/3Q2K1 b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 exf4 a4 g5 axb5 a5 bxa5 c5 bxc6 g4 a6 g3 hxg3 Nd7 a7 Be7 g4 Nh6 Rxh6 Nf6 g5 Nh5 Rxh5 Bc5 Rh1 Bf8 Kf2 f5 d4 Kf7 g4 Kg7 c7 h5 d6 f3 g6 f4 d5 Kg8 g5 Qd7 e3 Qe7 g7 Rh6 d7 Rb8 a8B Rb5 d8Q Ba6 c8R Rb3 d6 Qa7 d7 Rb5 Nc3 Rh7 Nh3 Rc5 Qa5 Bb7 d8R Bc6 Nd5 Qf7 Bb2 Rh8 Ne7+ Kh7 g8R Bb7 g6+ Kh6 g7 Kh7 Kg1 Rf5 Rd7 Bc6 Bc4 Rf6 Qb4 Ba4 Be5 Bc2 Rc5 f2+ Kg2 f1B+ Kg1 f3 Ra6 Bg2 Bc6 Qg6 Bf7 Qh6 Rdd5 Bf1 Rc3 Bb5 Rdc5 Bba4 Rh2 Qg5+ Rg2 Qg6 Rg5 Qh6 Rf5 f2+ Kf1 Qg6 Bf3 Qh6 Kg2 f1Q+ Kh2 Qd3 Kg1 Qg6+ Ng5+ Kh6 Nc6 Be7 Re8 Bd8 g8Q Qg7 Ne7 Rh7 B7d5 Rh8 Qe6 Rh7 Ng8+ Kg6 Re7 Rh6 Ne4 Kh7+ Ng5+ Kh8 Bc4 Rf7 Qg6 Rf6 Bf7
1R4QQ/1B2N1q1/P6q/2bRn2p/1rn4B/R2Qk1NK/b2p2R1/B1R5 b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 g5 exf5 c5 d4 b5 dxc5 Ra7 h4 Rb7 hxg5 Rb6 a4 Bg7 axb6 Bh6 a5 Bf8 b7 Nc6 b8N Nxb8 g4 Kf7 c4 h5 f4 e5 Kf2 d5 Kg3 e4 c6 b4 f6 Kg6 c5 d4 f5+ Kf7 c7 d3 g6+ Ke8 g7 Kf7 c6 b3 g5 d2 a6 b2 g6+ Ke8 f7+ Ke7 f6+ Ke6 Bg2 Kd5 Nc3+ Kd4 Nge2+ Ke3 Ra3 b1Q Bb2 Ne7 g8Q Qa1 g7 Ng6 Qb1 Rh7 Rc1 Bd7 c8Q Ne7 c7 Nf5+ Kh3 Qa2 Ba1 Qb2 Ng3 Bc5 f8R Be6 f7 Qd3 Rd8 Nc6 f8B Ne5 Be7 Ba2 Rd5 Nd6 Bh4 Ndc4 Qa8 Rh6 c8R Rb6 Rb8 Rb4 Qh8 Nd7 g8R Nde5 Na4 Qd4 Nb6 Qb2 Nc8 Qd4 Rdd8 Qd6 Bh1 Qh6 Ne7 Qf8 Ngf5+ Kf4+ Rg3 e3 Qd5 e2 Qdg8 e1Q Bb7 Qg7 Rd7 Qee3 Rd5 Nf3 Rg2 Nfe5+ Ng3 Kf3 Ne4 Qeh6 Ng3 Ke3 Qxd3+
rn2q2R/4r1rQ/1k4Q1/6RK/qB1N4/4qPQQ/BB1n3Q/N2rr2R b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 f5 exf5 d4 c4 d3 h4 gxh4 b6 Be6 b5 Nf6 b7 Qc8 b6 Bd5 cxd5 Nc6 b8B Qd7 Bxd3 Qc8 b7 Ng8 Bf1 Bg7 Ra6 Ba1 Rxa1 Qd8 Ke2 Kd7 Kf3 e5 Kg4 a5 d4 a4 f3 h6 f6 a3 f7 h3 f8Q a2 d6 e4 d5 e3 Qe2 h2 Kh5 Na7 g4 c5 g5 c4 g6 c3 g7 c2 Nd2 Qe7 Nb3 Rh7 Qf6 Qe8+ Qg6 Nc6 Bb2 c1Q Qc2 Qd2 Bc4 e2 Rd1 e1R Na1 Qc3 Ne2 Qce3 Nd4 Kd8 Ba7 Nb8 d7 Kc7 d8R Re2 Bc5 Nf6+ Kh4 h5 g8Q Rd7 Q8h7 Ne4 Bb4 Nd2 d6+ Kb6 Rdg1 Rg7 Rg5 Re1 Be6 Re7 d7 Rg1 Nab3 a1Q Qc8 Qa4 Na1 Qf7 Rh8 Qe8 Qcc2 Rd1 Qcf5 Rg1 Qh3 Rd1 Kg3 h4+ Kg4 Rg7 Qg3 h3 Kh5 Re1 Rg1 h1R d8Q+ Rc7 Qf6 h2 Qf5 Rg7 Qfh3 Re2 Rc1 Rd1 Rb1 h1R Ba2+ Nc6 Qgh2 Rhe1 b8Q+ Ka6 Qbg3 Kb6 Qf7 Nb8 Qfg6+ Q3e6 Qh1 Rg1 Ndc2 Rdf1 Bd6 Qeb3 Nd4 Ree7 Q1h2 Qe3 Re1 Rh1 Re2 Rd1 Bb4+ Kb7 Rg2 Rhe1 Rg1 Ka7 Rh1 Kb7 Qf7 Kb6 Qfg6+
3n2R1/r6b/Q1QP2RN/1rB5/N3KN1n/1R1rn2p/1q1bBR2/2kBR3 b - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 a5 axb5 g5 bxa5 d4 h4 c6 bxc6 gxh4 c3 Qb6 cxd4 Qc7 d5 Qd8 Ke2 Kf7 Kd3 Kf6 g4 Kg5 f4+ Kh6 f6 e5 f7 h3 c7 h2 g5+ Kg6 f5+ Kg7 g6 Kf6 d6 Kg5 d7 Kf4 f6 h5 g7 h4 a6 h3 a7 Bb7 c8B Qe8 d8R Rh5 Qc2 Qe7 Nc3 Qe6 Ba3 Rg5 Rb1 Qb3 Be2 Ne7 g8N Nf5 Rd6 Ne3 Bcg4 Bh6 f8R Qb2 f7 Nc6 Rg6 Nd8 Bc5 e4+ Kd4 Re5 d3 Bg5 Nh6 Bc8 Rfg8 Bf5 Rd6 Bh7 Rdg6 Rf5 Qa4 Re5 Qc6 Rf5 Bd1 Re5 Bge2 Rf5 Nf3 Re5 Rg1 h1R Re1 Rf1 Ng1 Rf3 Bb6 Rb5 Bc5 Ng2 Kd5 e3 d4 Nh4 Na4 Rg3 Bd3 e2 f8R+ Ke3 Rf2 Kd2 Ke4 Bf4 d5 Bg5 Bc4 Rd3 d6 Bf4 Rc1 Be3 Rc3 Bf4 Rb3 Kc1 Qa6 Bd2 Qc6 Rc8 a8Q Rc7 Qaa6 Ra7 Ref1 e1N Ne2+ Kb1 Nf4 Kc1 Rg1 Nc2 Rh1 Ne3 Re1 Rd5 Bf1 Rd3 Bfe2
q1RBRBq1/1kP2R2/5b2/Rn1q1N1r/K1Q2Q2/1B4n1/n1p1b1RN/3N4 b - - 0 1 legal: proof: e4 a5 b4 b5 g4 h5 gxh5 c5 c4 f5 exf5 a4 cxb5 c4 d4 a3 Bxa3 Ra6 Bc1 Rc6 a4 Rc5 a5 Qxa5 dxc5 Qd8 Kd2 d5 Kc3 Kd7 h4 Kc7 f4 g5 f6 e5 f5 e4 h6 e3 h7 g4 f7 g3 b6+ Kb7 h5 e2 h6 e1N b5 d4+ Kb4 d3 f6 g2 Nf3 g1Q Qc2 d2 Ra5 d1Q Bg5 c3 Ka4 Bf5 c6+ Kc8 b7+ Kc7 b6+ Kd6 Bc4 Qh2 Bb3 Nd7 b8R Qhe2 b7 Kc7 Rg1 Nd3 Nh2 Nc1 Rg2 Bg7 f8B Bd3 f7 Ngf6 Rc8+ Kb6 b8N Nd5 c7 Bf6 Nc6 Qee8 Ne7 Kb7 Nf5 Na2 Qd2 c2 Nc3 Bc4 Qf4 Be2 Bh4 Qd3 Nd1 Qa6 Qc4 Qa8 Bg5 Ne3 Qf4 Nc4 Bh4 Nd6 Bg5 Rg8 h8R Nb5 h7 Qe5 Bh4 Rg5 Rg8 Rh5 h8Q Qe6 Qc4 Qd5 Qh6 Qe8 Qhf4 Qee6 Bd6 Qe8 f8R Qg6 Rf7 Qh7 Rge8 Qg8 Ra6 Nc5+ Ka5 Be5 Bd8 Bf6 Bf8 Ne4 Ka4 Ng3 Ra5
3KB3/n1B1NBR1/1QbR1Np1/N2q3q/6bn/N2bN3/1R1Q1P2/k1b4n b - - 0 1 legal: proof: c4 a5 b4 f5 a4 b5 axb5 d5 cxd5 Na6 e4 Nb8 exf5 Bb7 Qg4 Ba6 Qd1 Bc8 g4 Ra6 g5 Rf6 gxf6 axb4 h4 g6 h5 Nh6 Qb3 Rg8 Qa4 Rg7 Qd1 Ng8 h6 Kf7 hxg7 Ke8 Rh3 h6 Rh1 h5 Ke2 Kf7 Kd3 e5 Ke4 c5 d4 b3 d6 c4 Kd5 b2 b6 e4 d7 e3 b7 h4 Nh3 e2 Qd2 e1Q Ra6 c3 Rd6 c2 Nf4 h3 Na3 b1B Bb5 h2 Ng2 Qa5 d8Q Qa6 Qb6 Nd7 Kc6 Qf1 Kc7 Qa7 d5 Qd1 Ne3 Qh5 Kd8 Ne5 b8N Ne7 Nc6 Qa8 Na5 Nf3 Rg1 h1B Be8+ Kg8 Rg3 Nh4 f7+ Kh7 g8B+ Kg7 Rg4 Bg2 Rb4 Nc6+ Kc7 Be4 Rb2 Na7 Kd8 Bd3 Rc6 Ba2 d6 Kf6 d7+ Ke5 f6 Bh6 f8N Bd5 Rd6 Bc6 f7 Qb7 Nh7 Ke4 Qa6 Qbb5 f8R Qbd5 Rff6 Kd4 Rf7 Bg5+ Nf6 Bf4 Qe2 Kc3 Qb6 Bh6 Rg7 Bg5 Kc7 Bh6 d8N Bg4 Bgf7 Bg5 Nf1 Bf4 Be3 c1N Qd1 Bh6 Bf4 Ne2 Ne3 Ng3 Qe2 Nh1 Bh2 Bcb5 Ndc6 Ba4 Ne7 Bc6 Kd8 Bg5 Nec2 Bd2 Ne3 Bc1 Rb4 Qb3 Qd1 Kb2 Qd2+ Ka1 Bf4 Qc4 Rb2 Qa2 Rd4 Qe6 Bc7 Qc4 Rd7 Qcd5 Rd6
2Rn3K/rQN1kq2/1P1N2Q1/RB6/3Bp1NQ/r2nqb2/N4rpB/2N5 b - - 0 1 legal: proof: e4 h5 c4 c5 a4 b5 g4 a5 gxh5 f5 exf5 d5 cxd5 c4 b4 e6 axb5 axb4 d4 Bc5 dxc5 Qe7 Nh3 Qf6 Ng1 Qd8 Kd2 g5 Ke3 e5 Ke4 c3 f4 c2 h4 b3 h6 b2 h5 g4 b6 g3 f6 g2 f7+ Kd7 Kf5 e4 Kg6 Ra4 Kg7 Na6 f8Q Bb7 h7 Nc7 c6+ Kc8 f5 Na8 h6 Ne7 c7 Kd7 c8N Qe8 d6 Qd8 f6 Ba6 f7 Ra2 Qd5 Qe8 Bb5+ Nc6 Ne2 Ra4 Bf4 c1R Nbc3 b1Q Qg8 Qd3 f8N+ Kd8 d7 Nb8 Na2 Re1 Qb7 Qc2 Bh2 Nc6 Nd6 Rb1 Ne6+ Ke7 d8N+ Nc7 N8f7 Qd2 Ne5 Rb2 Ng4 Nd8 Rhc1 Qe3 Rc6 Qd7 Nec1 Nd5 Rc8 Nf4 Nc7 Qe8 Qc4 Rf8 h8B Rb3 h7 Rba3 Qcd5 Qh5 Qf5 Nd3 Qg6 Rf2 Kg8 Qf5 Bd4 Qf7+ Kh8 Ra5 Bd7 Bc4 Bb5 Ra7 Nc3 Rb3 Ra5 Ra3 N3a2 Bb3 Nb4 Bd1 Nba2 Qe8+ Kg7 Be2 h8Q Bf3 Qhh7 Qf7+ Kh8 Nb2 Qhh6 Nd3 Qh4+
n1k5/n1b4r/1N3bpQ/n2B2p1/3NR1NB/5PN1/2NRBQQ1/1b2K1n1 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 h6 g4 Kd7 a4 Ke8 axb5 Bd7 Na3 Be6 Nb1 Bc8 b4 a5 b6 a4 b5 Ra7 bxa7 Qd6 g5 Qa6 bxa6 hxg5 a8N Kd7 h4 c5 d4 a3 d6 a2 d5 c4 a7 c3 f6 c2 f7 Kd8 h5 Be6 d7 Nf6 h6 Ne4 h7 Nc6 Ne2 Bf5 Qd2 Rg8 h8Q Nc3 Ng3 Bh3 Qh6 Bf5 Nb6 Be4 a8B Na7 Rh4 Ncb5 Be2 Rh8 Na3 Rh7 Rg4 Bd3 Re4 Nc7 Bb2 c1N Bf6 Nb3 Rd1 a1B Nc2 Na5 Bb7 Na8 f3 Kc7 d8N Kb8 d6 e5 d7 g6 Ne6 Bd4 d8N Bd6 f8Q Bc7 Qc5 Bc3 Qf2 Bd4 Rg4 e4 Bd5 e3 Be5 Be4 Bf4 Bf6 Ned4 Bf5 Nf7 Be4 Bd3 e2 Ne5 Bf5 Rh4 Be4 Ng4 Bf5 Qg2 Be4 Kf2 e1N Be2 Nd3+ Kf1 Nf2 Ke1 Bd3 Qe3 Nh3 Rd2 Ng1 Qef2 Bb5 Be5 Bc6 Nge3 Ba4 Re4 Bb3 Ng4 Ba2 Ngf5 Bb1 Bg3 Bh8 Bh4 Bf6 Nc4 Kc8 Ng3 Kd7 Nb6+ Kd8 Nd7 Kc8 Nb6+
R1k3K1/2P4N/N3NBR1/1p1B4/Qbb1bpn1/1B1n2nN/3N3Q/3qbQ2 b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 f4 axb4 fxe5 Be7 Bd2 Bd6 Bc1 Bf8 g4 h5 gxh5 Rh6 Bxh6 b5 Bc1 Ra6 a4 Rh6 Bxh6 g6 Bc1 g5 Kf2 d5 Ke3 Kd7 Kd4 f5 e4 b3 h4 f4 c4 b2 h6 g4 e6+ Kc7 Ke5 g3 e7 g2 e8N+ Kb7 h7 d4 h8N d3 a5 d2 c6+ Ka8 a6 Nh6 a7 Bg4 h5 Qc7+ Kf6 Qc8 c7 Kb7 a8B+ Kb6 e5 Bb4 Kg7 Qd7+ Nf7 Be2 c8Q Bg4 e6 Qe7 Nf6 Be2 Nh3 g1B Qa4 d1N Nd2 b1B Bd5 Bbd3 Bb2 Nd7 Nh7 Be4 Bf6 Bgc5 Rg1 Ba5 Rg6 Qd6 e7 Qe5 e8N Qg5 Nd8 Bh1 Nc7 Bd3 Na6 Ne5 Ne6 Nhg4 h6 Qh5 Kg8 Bcb4 c5+ Ka7 c6 Nc3 c7 Ne4 Be2 Bc4 Bd1 Nd3 Bb3 Ng3 Qd8 Bf3 Qe7 Be4 Qc5+ Bb6 Qg1 Bf2 Qf1 Kb6 N7g5 Be1 h7 Ka7 h8Q Kb6 Ng1 Qh1 Qh2 Qf3 N1h3 Qd1 Nh7 Ka7 Nef8 Kb6 Be6 Kb7 Bd5+ Kc8 Ne6 Be7 Qb4 Bc5 Ra5 Bd6 Qa4 Bc5 Nb8 Bd6 Ra8 Bb4 Na6+
2Bq4/BN1Bn2K/6NB/5pr1/q2Q1Pq1/1rQ3k1/r1p1Q1BN/4R1Rq b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 d5 cxd5 Bh3 Ra6 Be6 Ra1 Bc8 d4 exd4 b3 a5 Nc3 a4 Nb1 Bc5 b4 Bb6 Ra2 Ba5 Ra3 Qe7 Ra1 Qd8 bxa5 f6 g4 Be6 g5 Bf7 g6 Ke7 gxf7 Kd7 h3 g5 Ra2 Nc6 Ra1 Ne5 h4 g4 Ba3 Nc4 Bc1 Nd6 Rh3 Ne4 Rh1 Ng5 hxg5 Kd6 Ra2 Ke7 Ra1 Kd7 Kd2 Kd6 Kd3 Ke5 f8N h5 e4 c5 b6 h4 b7 g3 b8B+ Qd6 a6 a3 a7 g2 g6 h3 g7 h2 Nd2 Kf4 e5 a2 e6 Nh6 g8B Rh7 e7 Qc7 e8B Rg7 d6 Qe7 d7+ Qe5 d8Q Qc7 Ne4+ Ke5 Nd6 Rg4 Be6 Nf5 Bc8 Rg5 Nb7 Ne7 Bed7 Qd6 Rb1 a1R f3 Ra2 Qe2+ Kd5 Be3 Ke5 Re1 Rb2 Qa5 Rb3+ Qc3 f5 Ng6+ Kd5 Kd2 d3 Bf4 c4 Ke3 Rg4 Bh6 d2 f4 d1Q Nf3 Rg5 Rg1 h1Q Nh2 Qa1 Kf2 Qa4 Kf3 Qc7 Ke3 Qd8 Kf3 Rh5 Kg3 Rg5+ Kh4 Qe8 Qf6 c3 Qh8 c2 Qc3 Rg4+ Kh5 Qd8 Bf8 Rg5+ Kh6 Qd4 Kh7 Qa4 Bc7 Rb8 Bb6 Ra8 Be3 Ke4 Bh6 Rb8 a8Q Ra3 Qa7 Ra2 Na5 Rb3 Ng4 Rab2 Nb7 Ra2 Qec4+ Kf3 Qad4 Kg3 Qe2 Qh5 Nh2 Qg4 Rh1 g1Q Bg2 Qf2 Rhf1 Qff3 Rg1 Qh4 Ng4 Qh1 Nh2 Qh5 Qe5 Qg4 Ba7+ Qf3 Qcd4 Qh5 Qec5 Qg4 Qcc3+
4KbRN/bQRr3p/2Q2BkB/1Q1nQ3/1PpN2n1/3p4/1Q2B1q1/3R1r2 b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e5 a4 Ba6 axb5 Bb7 d6 Bc8 d4 Bd7 e4 Nc6 d5 Be7 Nc3 Bf6 Nce2 Bg7 Nd4 exd4 f3 Bf5 e5 Be4 fxe4 Nb8 Qh5 Bh6 Qd1 Bf8 Kf2 f5 Kf3 Kf7 Kf4 c5 b4 a5 g4 c4 d7 a4 d6 a3 g6+ Kg7 g5 d3 e6 a2 Ke5 f4 e7 f3 Ke6 f2 e8Q Qc8 b6 Ra7 e5 Rc7 b7 Qd8 Be2 f1Q Qa4 Qg2 Nf3 Rc8 Qb5 Qg3 Nd4 Qg2 Rd1 Qc7 d8Q Qc5 d7 Nc6 b8Q Qb6 Qb7 Nh6 Qf6+ Kg8 d8B Ra8 Kd7 Qa5 e6 Ra6 e7 Ra7 g7 Ng4 Qh5 Qa4 e8Q Ne7 Qeg6 Qa5 Ke8 Nd5 Qe5 Qa3 Qhh2 Qc3 Qgc6 Qb2 Bf6 Qc3 Kd7 Kf7 Bf4 Kg6 Ke8 Qb2 g8R+ Bg7 Rac1 a1B Rc2 Qc3 Ra2 Bb2 Ra6 Bc1 Rb6 Ra1 Ra6 Be3 Ra8 Rc1 Rc8 Rb1 Rc7 Ra1 Rd2 Rf1 Rd1 Qa1 Ne6 Bf2 Qb2 Bc5 Nd4 Ba7 Qg3 Kh5 g6 Bf8 g7 Kg6 Bc1 Qa6 Qgd6 Qb6 Qc8 Qb8 Bh6 Qg1 Kd8 Qg2 Qe5 Bfc5 Re8 Rf8 Kd7 Bd6 Q8b7 Rf7+ Re7 Qg8 Rc8 Qh8 Rg8 Bdc5 Ke8 Bd6 Rd7 Bf8 Rc7 Rd7 gxh8N+
N1Q1b1r1/6qB/1R4Rb/Nnq3nN/1r1B3n/bR2qP2/K1BN2k1/QN6 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 e5 g4 h5 g6 e4 g5 h4 b6 h3 g7 e3 b7 h2 f6 e2 f7 e1B g6 Qd7 Ra3 c4+ Ka2 c3 Bd3 c2 Nf3 Nf6 g8B Qf5 g7 Bd2 Bh7 Bh6 g8N Ne4 Be3 c1Q Nf6 Nc6 b8R Na7 Rg1 h1Q Nh5 Ng5 Rb3 Rg8 Bc2 Bd7 Nfd2 Qg2 Rb6+ Bc6 Qf1 Rb8 Qe1 Be7 f8N Nb5 Ne6 Qff3 Nc7 Qgg3 Bcf5 Qc5 Bc2 Qf7 Na8 Qg7 Rb7 Be8 Rb6+ Kd7 d6 Ke6 d5+ Ke5 d7 Rb7 d8N Rb8 Ra3 b3+ Ka1 b2+ Ka2 Qh3 d6 Kd5 Bd4 Qe3 Rb3 Bf8 Na3 b1N d7 Be7 Nb7 Bd6 Ndc4 Nd2 d8Q Ndf3 Nba5 Nh4 Qc8 Bf8 Qa1 Be7 Rg6 Rb6 Rgb1 Bd6 Bd1 Ke4 Bc2+ Kf3 Nd2+ Kg2 f3 Qcc3 N3c4 Ba3 R1b2 Qb4 Nb1 Qc5 Ncd2 Na7 Rc3 Rb4 Rbb3 Nb5 Rb6 Qcf8 Rcc6 Qc5 Rg6
1Qr1Nk2/b1Q2Bn1/1Q1R1Pb1/b3q2b/1b6/2Nr1RBQ/6N1/QBK2nr1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 f4 e5 d4 c5 Kd2 h5 g4 e4 g6 h4 d6 h3 g7 h2 g5 b3 b6 b2 d5 c4 f6 Bf5 g6 Rh5 f7+ Kd7 b7 Nh6 g8B Qf6 g7 Kd8 d7 Ke7 Nc3 b1B Bd3 Qg5 Nge2 Nc6 b8Q Bg6 Ra3 Qe5 f5 Rh3 Nf4 Bh5 Ng2 Na5 Qa4 Rg3 Rd1 h1R Qbb3 Rc8 d6+ Kf6 Bb2 e3+ Kc1 e2 d8Q+ Be7 f8N e1B d7 Rg1 Qc7 Bb4 Ne6 Ke7 Bf7 Bf2 g8Q Ba7 Be4 Rd3 Ng7 Bc2 Qh7 Kf8 f6 Nf5 Ne8 Ng7 d8Q Bb1 Qb8 Bc2 Qdb6 Bb1 Ne2 c3 Bf5 c2 Nc3 Nc4 Q6c7 Bd6 Q3b6 Bb4 Rb3 Ne3 Qa1 Nf1 Ba3 Be2 Qh3 Bh5 Rd2 Rf3 Rd6 Rd3 Kb2 Ba5 Bc5 Bb4 Bf2 Ba5 Bg3 Bb4 Ra3 c1B+ Kb3 Bd2 Kb2 Be1 Kc1 Ba5 Nd1 Beb4 B5g6 Rd5 Rf3 Be4 Nc3 Rd3 Ba2 Bf5 Bgf7 Bfg6 Bb1
Br5R/B4n1B/5R1R/1nB1QK1N/2b5/2rP1bNQ/n3r2k/N2qbn1B b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 c5 g4 e5 f4 h5 d3 h4 g6 b3 b6 c4 g7 b2 f6 c3 b7 h3 f5 h2 f7 c2 g5 Ra5 f6 Rh7 g6 Be6 Bg2 Bd7 Na3 b1N Ne2 Bb5 Be3 c1N Nc2 Nh6 g8B Qe8 g7 Rh8 Ba7 Na6 b8Q+ Nc7 Bh7 Be7 f8R Na2 g8B Ra3 Rf1 h1B f7 Bh4 Rf6+ Qe6 Rc8 Rc3 f8N Ba6 Ng6 Bc4 Ngf4 Bg3 Bf7 Re8 Bh5 Nf7 Bhf3 Rf8 Rh6 Rd8 Nh5 Nd2+ Ke3 e4 Rc1 Ke5 d6 Qg6 d7 Kf5 Na1 Nb5 Bc5 Kg5 Qe5+ Kh4 Rb1 Bf2+ Kf4 e3 Ba8 Qg8 Bgb7 Qg1 Neg3 Kh3 Qg4+ Kh2 Rf1 e2 Bg2 Rh8 d8B e1R Bdb6 Re2 Ba7 Rd8 Bh3 Bhd5 Bg2 Rh8 Bh1 Bb7 Rc7 Rb8 Rc8 Bbd5 Rh8 Be4 Nf5 Bh4 Rf3 Qd1 Rf1 Be1 Nfg3 Nfd6 Rf3 Nf1 Kg5 Bed5 Rff6 Nf7+ Kf5 Bf3 Qh3+
4nK1R/3RBQBQ/2Pr1b1b/1N1Nr1q1/3nr3/B3RBk1/bn6/B3Nr2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 h4 g4 f4 e4 c4 d6 h6 d3 h5 d2 h7 e3 a6 g3 a7 g2 b6 e2 b7 e1N c5 Qd7 h6 Bg7 c6 Qd8 Qc2 Na6 b8B Qe7 Ra3 Qe2 Nf3 g1B Nc3 Qd1 Nb5 Be3 Be2 Nd3 Rc3 Qe1 Ba3 Qh4 Rd1 Nac5 Bc7 Ne6 Bd8+ Kf7 f6 Kg6 f5+ Kh5 f7 Kg4 f8B Kg3 f6 Nb2 f7 Bd7 Bc7 Re8 a8N Bgd4 Bg7 Re7 Rc1 d1R Bd8 Rf1 Rd1 Bf4 Re3 Bde5 Ke4 d5+ Kf5 d4 Kg6 d3 Rd2 Nf6 Ne1+ Rf3 Rd1 d2 Qf5 Rhe8 h8Q Nd3 Nb6 Bc3 Bb2 Bc8 h7 Bh6 Ba1 Nb2 f8B Ba6 Nd6 Bc4 Nb5 Ba2 Qg8 Be5 h8R Bd4 Qh7 Qf4 Re5 Rf1 Bf3 Bc3 Re3 Qe5 Rb1 d1R Qh5 Rd4 Rd1 Re4 Rd4 Rd7 Ba3 Ree7 Rd6 Ne8 Nd5 Qf4 Qf5 Bd4 Qf8 Bf6 Qfg8 Nd4 Qf8 R7e5 Be7 Rd8 Kf7 Qh4 Qfg8 Qh5+ Kf8 Qg5 Qf7 Qf5 Rd7 Qg5 Rb7 Rd6 Rd7
k3bQ1R/1P1q1Q2/2N3BK/1n2b2n/r3n1bR/1Q2NrRr/N1R2r2/R6B b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Qd7 cxd5 Qd8 Ba3 Rb7 axb5 Ra7 b6 Ra6 b5 Ra8 Bb4 axb4 Ke2 Kd7 Kf3 c5 Kg4 e5 Kh5 b3 g4 e4 d4 e3 f4 h6 b7 Kc7 f6 e2 b6+ Kd7 f5 e1R d6 Kc6 g6 b2 f7 c4 f6 c3 g5 c2 d7 c1R g7 Ra7 d5+ Kc5 d6 Kc6 g6 Re4 Rh4 Rh7 Nh3 Rc3 Bg2 Ra4 Nf4 Rg3 Qb3 Rf3 Nc3 b1B Bh1 Na6 b8R Re2 Ng2 Nc7 Na2 Ref2 Ne3 Nb5 Rb7 Qc7 d8R Qd7 Ra7 Be7 f8Q Bc2 f7 Bf6 Qe7 Be5 f8Q Bd1 Ra6 Kb7 Qef7 Bc2 Ra7+ Kb8 Rb7+ Ka8 Rc7 Bf5 Rc2 Be6 Q7e7 Bf7 Qf6 Be8 Q6f7 Ne7 g8R Nf5 g7 Ng3+ Kg6 h5 Rh8 Ne4 g8B Rg7+ Kh6 Rgg3 Bh7 Rh3 Rf4 h4 Bg6 Rhg3 Rg4 h3 Rh4 h2 Rg8 Rh3 Rh8 Qb7 Rd7 Qa7 Rb7 Be6 d7 Bg4 Rbc7 Qb7 d8N Qd5 R7c3 Qd7 Bg2 h1N Nc6 Nhg3 Bh1 Rf4 Ng2 Nh5 Rg3 Rf5 Ne3 R5f3 b7+
2r3Nr/2n2Bq1/5n2/3R1Rr1/B1RQ1R2/Qrbb3N/N1RPk2K/2qQ3n b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 Kg2 Kd6 h4 Ke5 d6 Ke4 f6 e5 h5 a5 b4 c5 f7 c4 b6 c3 b7 c2 b5 c1Q d7 a4 h6 g4 h7 g3 b6 a3 Nh3 a2 Nc3+ Kd4 Bb5 e4 Qg1+ e3 Ba4 Qe8 d8R+ Qd7 Rb1 Kd3 Rb2 a1R Na2 e2 Rc2 Bb4 f8Q Qd4 Rd5 Na6 b8R Rb1 b7 Nf6 g8B Nc7 g7 Rb3 Bf7 Bc3 g8N Bf5 Qa3 e1R Rh2 Ke2 Rc8 Bd3 b8R Rf1 Rb7 Rf5 Rb4 Rg5 Rh1 Qe5 Rf4 Qe7 Rdf5 Rab8 Rd8 Rc8 Rdd5 Qf8 Nf2 Qh6 Rhh4 Qg7 Kh3 g2 Kh2 Rd8 Nh3 Rc8 Qh1 g1N Rc4 Ke1 Rhf4 Kd1 Qg2 Ne2 Qf2 Ng3 Qg1+ Ke2 Nh6 Rhe8 h8Q Nh1 Ng8 Ne4 Qh6 Rf8 Qhb6 Nf6 Qbd4 Rfe8 Nh6 Rh8 Ng8 Rb6 Qac5 Rb1 Qa3 Rb3 Qd1+
4Nr2/r1q1q3/2RQ2N1/QBQP3q/3bk1R1/1bn1n1B1/1Qq1RB2/4Q1Kn b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 f4 Kd7 Kf2 Kd6 h4 g5 d4 e5 b6 c5 b7 c4 f6 g4 f5 e4 h6 b3 h5 c3 f7 b2 h7 c2 h6 Qf6 Nf3 g3+ Kg1 e3 Qe1 g2 Rh2 e2 Nc3 b1Q Ra4 Ra6 Ne5 Ne7 Ng6 Bg7 f8Q Qb4 Be3 c1Q Bf2 Qf7 f6 Nc6 b8R Qbb2 Rb6 Rg8 h8Q Be6 h7 Ra7 Qc8 Qe8 f7 Qbc2 f8Q Be5 Qf5 Rf8 Qa6 Bf7 Qa5 Bg8 Qg5 Nf5 Qhf6+ Be6 h8B Ng3 Rc4 Nh1 Nb5+ Kd7 d6 Ne7 Qh5 Nf5 Nc7 Ne3 Rbc6 Qf7 Ra4 Bb3 Ne8 Qd5 Qg7+ Ke6 Bg3 Qb5 d7+ Kd5 d8Q+ Ke4 Qd6 Bf6 Qg5 Qf5 d5+ Bd4 Q5e7+ Qe5 Qec7 Qh5 Qgf6 Qc4 Qff2 Q1c2 Bf6 Qc5 Bfh4 Qb6 Qac5 Qb7 Q7a5 Qc7 Qb1 e1Q Qb2 Qb4 Qe1 Qbb7 Bf2 Qe7 Bb5 Qbc7 Rh3 Qb8 Bhg3 Qbc7 Kh2 g1N Ra2 Ne2 Rh4+ Ng4+ Kg2 Kf5 Kf1 Nc3 Kg1 Ne3 Rg4 Qb1 Qa1 Qbe4 Re2 Qc2 Bf4 Ke4 Qb2 Rf6 B4g3+ Rf4 Rg5 Rf8 Rg4+
1R2n1K1/R2B1B1N/1Q1QPq1k/2Brr1n1/R2N2R1/2RbN2n/q5q1/1n3b2 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Be7 gxf5 g4 h4 Bg5 hxg5 exf4 Kf2 Kf7 d4 Kg7 e4 c5 b4 a5 b6 h5 b5 a4 d6 g3+ Kf3 a3 e5 g2 Ke4 h4 Kd5 h3 g6 f3 d7 f2 Ke6 a2 f6+ Kf8 f7 Kg7 f8N c4 b7 h2 b6 c3 d5 c2 d6 Rh7 Na3 Nf6 Ne2 g1N Be3 c1Q Bc5 Rh6 Nd4 Ne4 Nac2 Nf6 Bb5 f1N Nh7 Ra5 Ne3 Nc6 b8Q Ne8 b7 Nh3 Rg1 h1B Rg4 Qb2 Qc7 Rh5 b8R Qf2 Qb6 Kh6 g7 Nd2 g8B Qg2 Kf7 Nb1 e6 Ba6 Rc8 Qg5 d8R Ne5+ Kf8 Nf3 d7 Qf6+ Bf7 Re5 Kg8 Nfg5 Rc7 Qd2 Ra8 Be4 d8R Qg2 Raa7 Bd3 Rb8 Bf1 Bd7 Bad3 Bb4 Rab5 Rc3 Rbd5 Bc5 Nd2 Rb1 a1Q Rb4 Qa2 Rba4 Nb1 Qd2 Qg1 Qh2 Qgg2 Qg3 Re4 Qgc7 Ree5 Qcd6
bb1N1R1B/3bR2q/r1k4N/1N2nQ2/2r5/1Br2NPK/B2r1Q1R/4n1Nb b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 Kd7 f4 c5 Kf2 h5 Kg3 e5 f6 e4 f7 e3 d6 b3 g6 b2 d5 e2 b6 e1R g7 c4 f5 h4+ Kh3 c3 g3 c2 f6 Re3 b7 Na6 Qe1 Qe8 b8N+ Kd8+ d7 Kc7 Bc4 Qe7 Nd2 b1B Nc6 Nh6 g8B Nb4 Nd4 Nd3 Rh2 Ng4 d8N Ra6 Bb2 c1R Ba2 Rc4 Qf2 Ne1 N2f3 Be4 d6+ Kb6 d7 Rec3 Bb3 Ba8 Ra2 Bg7 f8Q Ne5 f7 Rh6 Ba1 Rd6 Re2 Bh6 Re3 Bf4 Nb5 Rd2 Ba2 Qg5 Bb3 Qg7 Ba2 Qh7 Qc5+ Ka5 f8R Ka4 Bb2 Ka5 Qd5 Kb6 Qf7 Kc5 Qf5 Kb6 Nf7 Kc5 d8N Bd7 Nb7+ Kc6 Bb3 Ng6 Ba1 Bb8 Re7 Ne5 Nh6 Rc1 Bd4 R1c3 Be6 Ng6 Kg4 h3 Ba2 Ne5+ Kh4 Rc5 Beb3 R5c4 Nd8+ Kd5 Rg2 h2 Kh3 h1B Rh2 Rc1 Nf7 Kc6 Ba1 N5d3 Be5 R1c3 Bh8 Ne5 Nd8+
bb2K3/7R/6QQ/b2nQN2/NPn2Q2/2qQ1BRb/3q1q1N/1RkBr2b b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 f4 f5 exf5 g5 b3 Bd7 f6 Na6 f5 Bc8 Bb2 Nb8 h4 a5 g4 Bh6 h5 Bg7 Be5 Bf8 Bf4 gxf4 g5 Nh6 Rh4 Rg8 Rh2 Rg6 hxg6 Ng8 Rh1 Bg7 Nf3 Qd7 Rh6 Na6 Rh1 Bb7 Rg1 Kd8 Bg2 Nh6 Ra4 Rc8 Ra2 Nb8 Ra1 Qd6 Qc1 Kd7 Qb2 Rh8 Qc1 Bc8 Rh1 Ng8 Ng1 Bf8 Qd1 Ke8 Bf1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 d4 Ke3 b4 h5 f7 e5+ d6 a4 g7 c6 g6 h4 d5 a3 f6 e4 b6 a2 b7 h3 Nc3 h2 Rb1 a1B Qc2 f3 Be2 f2 Bf3 f1B Na4 Be7 f8Q Be5 f7 Nf6 g8R Bch3 g7 Bfg2 Bd1 Qc8 Nf3 Bd8 d7 Ba5 d6 Nd5 d8N Bg3 Ne6 Nd7+ Kc4 c5 Kb5 c4 b8Q c3 Ned4 Qd8 Kc6 N7b6 d7 Nc4 Qe5 Rh6+ Qfd6 Re6 f8Q Qg5 d8Q Re7 Rf1 h1B Nh2 Qf4 Qdf6 Qf2 Qh6+ Bf4 Qdd6 Re6 Qb3 Kd2 Kd7 e3 Nf5 c2 Qfb8 Re8 Qdg6 c1Q Rh8 e2 g8B e1Q Rh7 Qee3 Rg1 Qcc3 Qbc7 Bg3 Qef4 Re4 Qce5 Bf3 Ke8 Bfg2 Rb2+ Kc1 Be6 Qcd2 Qd3 Qd4 Bd7 Re1 Bc6 Qc3 Bb7 Bh4 Bc6 Be7 Bb7 Bd6 Rb3 Bf3 Rg3 Bb8 Nd4 Bc8 Nf5 Bfg2 Bc6 Bb7 Rb2 Ba8 Bb7 Bh3 Rb3 Ne7 Bbf3 Nd5 Rb1#
B2BnbNN/1RQ1R2q/kq6/1rb3Q1/2q5/3QnQN1/2nP1K2/q1b2RQ1 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qb3 a5 Qc2 Bf5 gxf5 g4 Qb3 g3 Qd1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qd7 Qa4 Qc8 Qd1 Qd8 b4 Kd7 e4 Kc8 e5 Kb7 g5 c5 g6 h5 b6 c4 e6 c3 f6 g2 d6 a4 f7 h4 e7 h3 e8Q h2 g7 a3 b5 a2 d7 c2 Qe3 Qc8 d8Q Nd7 Kf2 Qb8 Ba3 c1N Ne2 Ngf6 g8N Rh5 Qd3 Nd5 Nbc3 Ne3 Nd5 Nb3 Ng3 Nd4 Qg5 Nf6 Nde7 Ne8 Ng6 Ndc2 Nh8 Qc7 Rg1 h1Q Be7 Qd6 Rc1 a1B Bd8 Bb2 Ra1 Bc1 Ra7+ Kb8 b7 Qb6 Be2 Qh3 Re1 Qf5 Ra1 Qh7 Rb1 Ka7 b8R Qc5 Bf1 Qc4 b6+ Ka6 b7 Qb5 Be2 Qc4 Qg4 Rb5 Qg5 Qc5 Rf1 Qa7 Rc8 Qb6 b8Q Bb4 Rg1 Qb7 f8Q Bca3 Rc1 Nf5 Re1 Qbc7 Kg1 Qb6+ Qd4 Be7 Qfh6 Bf8 Qhh5 Bb2 Rc7 f2+ Kh2 f1Q Bf3 Bba3 Ree7 Nfe3 Ba8 f3 Rb7 f2 Qc7 Qc4 Qg1 f1Q Qd3 Qff6 Rf1 Qa1 Nf5 Bb2 Kg3 Bc1 Qf3 Nd1 Qh1 g1B Qh2 Be3 Qg1 Bc5 Kg2 Nde3+ Kf2 Qb3 Ng3 Qba2 Qge5 Qc4 Qg5
5k1q/1BKR2BP/1r3BR1/1N2Q2q/Q1n1Q1Nn/1nn1r2r/B2R1n2/2qB4 b - - 0 1 illegal: No possible last move, all moves rejected
3B3n/nqqR2q1/q2B2kb/1Bn5/2bNn1RB/2Q1QB2/2N1P2n/1KNR4 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qc2 h5 Qd1 a5 Qc2 Rh7 Qd1 Rf7 h4 Rf5 gxf5 g4 Ra3 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 d4 Kf7 Kd2 c5 Kc2 g3 b4 h4 g6+ Kg7 f6+ Kh6 g7 f2 d6 a4 d5 h3 b6 g2 b7 c4 f7 h2 d7 c3 b5 a3 b6 a2 d6 Nf6 g8B Be7 f8Q+ Kg5 Nd2 f3 Qe1 Nh5 Bc4 Kg6 Nb3 Nf4 Bb5 Nc6 b8N Bg5 b7 Na7 Nc6 Qc7 d8B Be6 b8B Bc4 d7 Bh6 Rb1 a1Q Ncd4 Qa6 Qa3 Kh5 Rb2 Ng6 Bcg5 Nh8 Kb1 Kg6 Nc1 c2+ Ka1 Qcc8 Qc3 Qc5 Bh4 Qc7 Na2 c1N Rb4 Nd3 Nc2 Nc5 Nc1 Ne4 Kb1 Nc5 Nh3 g1Q Bg2 f1Q Ng5 f2 Bf3 Qfg2 Ne6 f1N Qab3 Qd4 Qe3 Qf6 Qbc3 Qg7 Rg1 h1N Ned4 Nh2 Rd1 Nf2 Ra4 Qf4 Bd6 Qfe5 B8e7 Qeg3 d8R Nfe4 Rd7 Qh1 Bd8 Qhg2 B6e7 Qc7 Bd6 Qh1 Bg4 Qf3 Rb4 Qff7 Bf3 Qd5 Ra4 Qdb7 Nf5 Ng5 Be4 Bg8 Bf3 Bf7 Rf4 Nge4 Nfd4 Bc4 Rg4+
N1n1R1Nq/Pn1q2N1/2k2Q2/7N/2Kn2bR/qN2R1Qn/2B5/bqq2QB1 b - - 0 1 legal: proof: g4 h5 h4 d5 e4 g5 c4 b5 cxd5 f5 gxf5 g4 f4 a6 f6 Kd7 f7 Rh7 f5 Rg7 b4 Rg5 hxg5 a5 e5 axb4 Bg2 Ra6 Bf1 Rf6 exf6 Bg7 Be2 Bh6 Bf1 Bf8 Ke2 c5 Kd3 e5 a4 h4 d6 h3 g6 h2 g7 g3 a5 g2 a6 b3 a7 b2 Ne2 g1Q Ra3 b4 Qe1 b3 Nf4 e4+ Kc4 e3 d4 e2 d5 Na6 Qg3 e1N Nd2 b1N Bd3 b2 Nb3 Qe8 Nh5 Qe7 Be3 Ng2 Bc2 Nf4 Bf2 Qc1 Bg1 Nh6 g8N Bg7 f8Q Nc3 f7 b1Q f6 Ne4 Na1 Qe8 Re3 Nh3 Nb3 Bh8 Qfg7 Qa3 f8Q+ Qf7 Q7g5 Nf5 Qg6 Qe7 f7 Ba1 Qf6 Nd4 Qf1 Qd8 Qfg7 Qe7 Qgf6 Qe6 f8R Qf5 Bf2 Qh7 Re8 Qg7 Rg1 h1Q Rg2 Qh8 Rh2 Qf3 Bg1 Qf5 Qfe5 Nb8 Qf6 Nbc6 Rh1 Nd8 Rh2 Nb7 Rh1 Nhf2 Rh4 Nh3 Re7+ Kd8 d7 Qg4 Re5+ Kc7 d8N Qd7 Ne6+ Kb6 Neg7+ Ned6+ Kd3 Kb5 Re8 c4+ Kd2 Ne6 Ke2 c3 Kd3 Ne4 d6 Kc6 Kc4 Nd4 Nf4 Nec5 Nfh5 Na4 Bf5 c2 Bh7 c1Q+ Bc2 Qc7 d7+ Qcd6 Kd3 Nb6 d8N+ Kd5 Nde6 Kc6 Nc7 Bg4 Na8 Nc8 Qg5 Qd8 Kc4 Qd7 Qgf6+
BN5n/N1Q3R1/QK1b1bB1/4Nq2/1QRR1Q2/1r1br3/1n1PpQn1/2q1k3 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 Ke3 Kd6 Kd4 a5 h4 a4 h5 e6 b4 c6 f6 a3 f7 a2 b6 g4 b5 g3 b7 g2 h6 Ra3 b6 Re3 h7 Na6 b8N Ne7 g8B Nc5 b7 Qd7 g7 Nd3 Nc3 Ng6 Nf3 g1N Rh4 Nh3 Bg2 Nb2 Rc1 a1B Ne5 Nhf4 Qf3 Be7 Bh1 Ng2 Rc2 Bf6 f8Q+ Be7 Bf7 Rg8 Nd1 Nh8 Bg6 Rb3 Q8f4 Re8 g8R c5+ Ke4 c4 Kd4 c3 Rg7 Qb5 Rc1 c2 Nc3 Qa5 Rg4 Bd7 Rh4 Bb5 Rg4 Nf7 h8Q Bd3 Qhh6 Nh8 Rh4 Kc7 d6+ Kb6 d7 Bd6 Nb5 Re7 Rb1 c1Q Na7 Qb5 Rg4 Ka5 d8Q+ Kb4 Qc7 Re8 Ned7 Qf5 Rh4 e5+ Kd5+ e4+ Ne5 Bc5 Kc6 Bd6+ Kb6 Re6 Nc4 e3 Ne5+ Ka3+ Qb4+ Ka2 Rd4 e2 Qhf4 Qc3 Rf1 Qc1 Qc4 Kb1 Qa6 Kc2 Rg1 Ne3 Rg4 Kd1 Rc4 Qf6 Nec6 Qe5 Qf5 Qec3 Qg2 Be4 Nd7 Ke1 b8Q Nbd1 Qc7 Qe5 Ndb8 Bd3 Rge4 Re7 Qf4 Qf5 Qgg4 Bf6 Red4 Re4 Ne5 Nb2 Bf3 Ng2 Qh3 Re3 Ba8 Bb1 Qhf3 Bd3 Qf2+
2Q1B2n/5Q2/2r2nq1/1r1R2RQ/QqBpnKQ1/1b1N1N2/2NP3k/bB3q2 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Na6 b4 Nb8 bxc5 Ba6 Kf2 Bb7 Ke1 Bc8 fxg5 h6 g4 Qa5 g6 Qb6 g7 Qd8 g5 Nf6 g6 Qb6 Bb2 Ng8 Bf6 Qd8 Bg5 hxg5 Kf2 d5 Kf3 Kd7 c4 a5 h4 e5 c6+ Kd6 c7 a4 b6 d4 f6 a3 h5 a2 b7 Ra5 f7 Rd5 h6 Bh3 c8Q Qe7 h7 Na6 b8N Rb5 Qa4 Nc5 Bd3 Nf6 g8B Be6 g7 Nce4 c5+ Kd5 c6 Qb4 c7 g4+ Ke2 g3 Kf3 g2 Rh5 Kd6 Na3 Bb3 Rg5 Be7 Rb1 a1Q Qg4 Bd8 c8Q Ba5 Re1 Kd5 Re2 Qf1+ Rf2 Kd6 Nd7 Kd5 Bb1 Kd6 Ne2 g1Q Nc1 Kd5 Nc2 Kd6 Rh5 Kd5 Nd3 Kd6 Qh4 Qg6 Rg5 Kd5 Rg2 Ke6 f8Q+ Kf5 Bc4 Rg8 Qe7 Re8 Qf7 Re6 g8B Rc6 h8Q Rd5 Q4h7 Rb5 Rh2 Kg5 Qh7g7 Kf5 Bh7 Kg5 Rg2+ Kh4 Rg5 Kh3 Na3 Ng3 Qgg8 e4+ Kf4 e3 Nc2 e2 Rf3 e1N N7e5+ Kg2 Rf2+ Kh1 Nf3 Nge4 Nh4 Nf3 Qg4 Ne5 Q8c8 Rd6 Rf3 Kh2 Bg8 Rc6 Qhh5 Qa3 Bh7 Bc3 Bg8 Qb4 Bh7 Qg7 Bf5 Qg8 Bd7 Ba1 Be8 Qg6 Qfa7 Qh7 Qaf7 Nf2 Re3 Ng6+ Kf3 Nh8 Ree5 Qg7 Kf4 Qg6 Rd5 N2e4+ Nf3#
r1b2RR1/b1rR1B2/1kBn1q2/1BPQ3r/1R6/3R1QN1/1p1K1nNN/3b1q2 b - - 0 1 legal: proof: d4 a5 g4 g5 b4 f5 bxa5 c5 dxc5 h6 f4 Qb6 e4 Rh7 exf5 Na6 fxg5 Nb4 g6 Na6 g5 Rh8 g7 Qd8 g6 Nb8 Bg5 hxg5 h4 d5 a4 Kd7 f6 Kc7 c6 e5 h5 b5 a6 e4 f7 e3 h6 b4 h7 b3 a7 g4 a5 b2 a6 g3 Nf3 d4 Nh2 d3 Nc3 e2 Ne4 g2 Kd2 e1R Qf3 g1Q Rd1 Qgd4 Ng3 Be7 f8R Nh6 g8B Q4d5 g7 Bh4 Bf7 Q8d6 g8R Kb6 c7 Bd7 c8R Qc4 Rcd8 Bc8 Rd7 Nc6 c3 Re7 Qd5 Rb8 a8B Na5 a7 Qf6 Bc6 Nb7 a8Q Nd6 Rg1 Qa6 Rg4 Qb5 Rb4 Ng4 Qa3 Ra8 Rg2 Rg8 h8N Rg5 Ng6 Nf2 Nf4 Rh5 Qab3 Bg5 Qf3 Bh4 Qbd5 Bg5 Nh1 Bh6 Rgg8 Bg7 Ng3 Bh6 Rdd8 Rc7 Rd7 Bg7 Ng2 Bh8 Ra1 Bg7 Ra3 Bh8 Ke3 d2 Bc4 d1B Kd2 Qg6 Be2 Bd4 Rab3 Qf6 Bf1 Ka7 Be2 Qa6 Beb5 Kb6 c4 Qa1 Re3 Qb1 Ra3 Qbf5 Rd3 Qh3 Ne1 Qf1 Ng2 Ka5 Ne1 Ba7 Ng2 Kb6 c5+
6BK/QQn2B2/4b1qn/1Pnr3Q/1r2R3/Bk2NNpR/1NQ1q1b1/1Q3q2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 exf5 g5 a4 Qd6 axb5 Qg3 h4 Qh3 Ke2 Bh6 Ke1 g4 g3 Bg5 hxg5 Qxg3 Ra5 Qf3 Ra1 Qg2 Ke2 Kf7 Ke3 c5 Kf4 h5 Ke5 a5 f4 h4 b4 g3 d4 c4 d6 e6 f6 c3 g6+ Kf8 f7 h3 d7 Ke7 d8N c2 f8Q+ Kd7 g7 a4 d5 a3 b6 h2 d6 a2 f5 Nf6 g8B Rh7 b5 Nh5 b7 Rh6 f6 Qf3 f7 Qd3 Na3 Na6 b8Q Nf6 Qb7+ Nc7 Qg7 Ra4 Nc4 Qg6 Qh5 Rb4 Ba3 c1N Nb2 Nb3 Nc6 Nc5 Re1 a1Q Bc4 Rh7 Re4 Qf1 Nf3 Ng4+ Kd4 Qe2 Ne7 Nh6 Ke5 Qf1 f8Q Rh8 Rg1 h1B Qff5 Bg2 Rh1 Qe2 Bf7 Rd8 Nd5 Qf1 Ne3 Qe2 Rf4 Qf1 Rh3 Qe2 Qc2 Qf1 Kd4 e5+ Kc3 e4 Kd4 Qe2 Ke5 Qf1 Ng4 e3 Re4 e2 Ne3 e1Q Bb3 Qg4 Kf6 Qee2 Qh7 Qe6+ Kg7 Qf5 Bg8 Qg6+ Kh8+ Qf7 Rc4 Ke6 d7 Kd6 Rch4 Qg6 Re4 Re8 Rg4 Re5 Bbf7 Rd5 d8Q+ Bd7 Qda8 Bc8 Ng5 Be6 Qaa7 Ke5 Ne4+ Kd4 Ng5+ Qe4 Qb1 Kc3 Nf3 Qg6 Re4 Kb3 Qg7 Nd7 Qgd4 Nc5 Qd2 Rd6 Qdc1 Rd5 Qcc2+
6r1/1Q1nB1rB/nbB4K/P2N1Q1R/3bQ3/5q1R/pRqkr1N1/1b4RR b - - 0 1 legal: proof: b4 a5 g4 f5 c4 d5 cxd5 b5 a4 h5 gxh5 Kf7 e4 Bd7 exf5 Ke8 bxa5 Ra7 a6 Bc8 a5 Ra8 Qa4 bxa4 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Kd4 f4 c5 h4 e5+ f6 a3 d6 c4 f5 a2 h6 e4 h5 g6 d7 e3 a7 e2 h7 Kd3 h6 c3 Nf3 c2 Nc3 Ba6 Ne1+ Kc4 d4 Qe8 d8R Nc6 f7 Bc5 f8Q Qe5 d5 Kb3 d6 Bd4 d7 Qc7 f6 Qc8 f7 Nb4 Ng2 e1B Qe8 Bd3 f8Q Na6 Qf5 Qb7 Nd5 Bef2 Ba3 Nf6 Be7 Rg8 h8R Kb2 h7 c1Q+ Nde3 Kc3 Rb8 Qe4 d8Q Qc2 Qdd7 Kd2 Rb2 Qf3 Qb7 Nd7 Kh6 g5 Nd5 g4 Rab1 Rd8 a8B g3 Rc1 Be4 Bd3 Bb6 Rh3 Bfd4 Rch1 Rg7 Rg8 Rc8 h8R Rc3 Bb5 Re3 Bc6 Re2 Qeg6 Bd3 Qgg4 Nf8 Qge4 Nd7 Nge3 g2 Rh7 g1R Ng2 Rf7 Rg5 Rf8 Rgh5 Rg8 Rg7 Ne5 Be8 Nd7 Bg6 Ra1 Bh7 Rg1 Nh4 Rg4 Ng2 Rg3 Qa7 Rg4 Bc6 Rg5 Qb7 Rg3 Rf7 R3g7 Bf6 Qg4 Be7 Qg3 Rf6 Qf2 Rg6 Qf3 Qh4 Be4 Ngf4 Bd3 Rgg1 Be4 Rb4 Qc5 Ng2 Bb1 Rb2+ Qc2 Qhe4
7r/2n1b3/R1Qrpb2/2nN1b2/1NB1k1R1/1Qq1rR2/PBN3RR/qB4K1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 f4 Kd7 Kf2 g5 h4 b5 d6 Kc6 d7 b3 h6 g4 h5 b4 f6 b2 f7 b3 h7 Ra3 h6 Ra6 f5 Qb6 d8N+ Kc7 f6 Nd7 Nc3 b1R Nf3 g3+ Kg1 g2 Bc4 b2 Nd4 Qb7 c6 Kd6 c7 Ke5 Rh2 Qa8 Qb3 Ra3 N8c6+ Kd6 Nd5 Ra5 Ncb4 Ke5 Ndc2 Ra6 Rh4 Bg7 f8R Qc6 f7 Bf6 Rg4 Nc5 Re8 Ra3 f8R Bf5 c8B e6 B8a6 Ne7 Ra8 Qc8 Bd3 Qc7 Bac4 Ra6 Rfg8 Rd6 Ra6 Qc8 Rg3 Qc7 Rf3 Qc6 Rg4 Qc8 Nf4 Nd5 Be4 Nc7 Nfd5 Rf8 h8R Rg8 Rh7 Rh8 Rhg7 Be7 h7 Bf6 Kf2 g1B+ Kf1 Bh2 Kg2 Bg3 Kg1 Bgh4 Rg2 Be7 R7g4 Bhf6 Rh2 Rg8 h8Q Rgd8 Qh5 Rh8 Ne1 Kd4 Qe8 Ke5 Qc6 Kd4 Bh6 Rd1 Bf8 b1Q Bg7 Rd3 Rgg2 Qb2 Nec2+ Ke5 Raf1 Re3 R1f2 Qc3 Rg4 Qb7 Rfg2 Qb6 Qca4 Qa5 Qc6 Qa1+ Ne1 Qa3 Bb1 Q3b2 Nec2 Qc3 Rg5 Ke4 Rg6 Bh4 Bd4 Bhf6 R6g5 Qd2 Bb2 Qc3 R5g4+
2r2Rn1/K3B3/1R1Bp1P1/2B1bRnk/2q1q2R/1qQ2b2/3Qn3/2RNr1NQ b - - 0 1 illegal: No possible last move, all moves rejected
6K1/NNRQB1B1/1kP1n2r/b2q4/2qrpB2/N4nBB/3bQ3/1b2RQ1n b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Ke2 e5 Kf3 g5 Ke4 d6 Kd5 Kd7 h4 Kc7 c4 e4 f4 d3 f6 d2 c5 g4 b6+ Kb7 f7 g3 f5 g2 f6 Nc6 h6 Bh3 h5 Nb8 a6+ Kc8 a7 Kb7 c6+ Kc8 b7+ Kc7 h7 Bg7 f8Q Qe7 h6 Kb6 f7 Nd7 b8B Bc3 Qe2 d1N Nf3 g1B Nd4 Nf2 Na3 Ba5 Bf4 Nc5 Ndb5 Ne6 Re1 Bg2 Rh2 Nh1 Rh4 Bf3 Bh3 Be3 Qd8+ Qc7 f8B Bed2 Qd7 Bh5 Rg4 Bf7 Be7 Qd8 Rg7 Nf6+ Kc4 Ng4 Kd5 Qc8 Qf1 Rd8 h8N Qa6 h7 Ne5 Qe2 Bg8 Nf7 Nf3 h8B Qc8 Ne5 Qa6 Nd3 Bf7 Nc5 Bg8 Nb7 Bf7 Kc4 d5+ Kb3 d4 Kc4 d3 Kd5 Bg8 Bg3 Bf7 Bbf4 Rac8 a8Q Rb8 Na7 Qc4+ Kd6 Bg8 Beh4 Bf7 Ke7 Bg8 Qc8 Rd4 Qd7 Rf8 Qae8 Rf6 Qf7 Rh6 Bf6 Be3 Rh7 d2 Bhg7 d1Q Ke8 Bed2 Be7 Qdb3 Qf6 Rd5 Qa1 Rd4 Qad1 Qd5 Qf1 Qbc4 Qde2 Nd8 Kf8 Be6 Bgf6 Bg8 Kg7 Ne6+ Kh8 Bf7 Bg7 Neg5 Qd6 Qb4 Bge5 Qdb5 Bf8 Ba2 Qe6 Qc3 Kg8 Bb1 Rc7 Qd5 Beg7 Qcc4 Qf7 Ne6 Qd7 Rf6 Bb4 Rh6 Be7
N1QNQ3/3p4/QR1Q1B1K/1Q1bq3/1q2R3/br2Pn1B/3nqrr1/B2k2N1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 axb5 e4 d4 cxd4 f3 Ba3 fxe4 Be7 e5 Bf8 Kd2 Ke7 c4 Ke6 h4 Kf5 b6 Kg4 c5 f5 h6 g5 b7 f4 e6 d3 h5 f3 Ke3 f2 e7 d2 e8Q Bg7 h7 Bf6 h6 Qc7 c6 Bg7 a6 Ra7 Nc3 Nf6 Na2 Ne4 Rb1 Bf8 Bb2 Ba3 Nb4 Rg8 h8Q Qe5 c7 Nc6 b8Q Rb7 h7 Nd4 a7 Nf3 Nc6 Rb3+ Bc3 Rf8 a8N Bb7 Nd8 Bd5 c8Q Rf4 Bg2 f1Q Qf6 Qe1 h8B Qh4 Qf1 d1Q Qfd6 Rf5 Qb5 Ned2+ Kd3 Kf4 Bf6 g4 Bh3 g3 Qba6 g2 e3+ Kg3 Rh2 Qc2+ Ke2 Qb4 Ba1 Qce4 Rb2 Q4f4 Qb1 Qg4 Qbd3 Rf4 Qdb5 Qgh5 Be6 Qg4 Rh4 Qgh5 Bh3 Rf5 Kd1 Kf2 Re4 Rf4 Rc2 Qg4 Rc6 Qgh5 Rb6 Rf5 Ne2 g1R+ Kc2 Rg2 Ng1 Rb2+ Kd3 Ke1 Qdc5 Kd1 Qd6 Rb1 Qcc6 Qh4 Rg4 Ng5 Qcc8 Qh5 Rd4 Rff2 Rc4 Qe6 Kd4 Qeg4+ Ke5 Qe2 Re4 Ngf3+ Kf4 Rb3 Bh4 Rh2 Bhf6 Qe5+ Kg4 Qe6+ Kh5 Qe5+ Kg6 Rhg2+ Kh6
2n1Nbn1/R1Q2RR1/n1rpB2Q/Rb4K1/Pn3N2/1B1r2n1/kq1RQ1N1/8 b - - 0 1 illegal: No possible last move, all moves rejected
b3nbnb/1RQr1Q2/kq1b4/1R4N1/2K2P1B/r2pB3/Nr1R1R2/1NB1R3 b - - 0 1 legal: proof: g4 c5 e4 h5 d4 b5 dxc5 f5 exf5 g6 a4 Qc7 axb5 Nh6 f4 Ng8 Be2 Qb6 fxg6 Qc7 g5 Qd8 Bg4 hxg4 Kd2 e5 Kc3 d5 b4 Kd7 h4 Kc7 g7 Kb7 g6 a5 b6 g3 c6+ Ka6 b7 g2 c7 e4 h5 a4 b5+ Ka7 h6 a3 h7 e3 b6+ Ka6 Ra2 e2 Nh3 g1B Ng5 e1R Qh5 d4+ Kc4 Nf6 g8N d3 g7 Nc6 b8R Qe8 b7 Nd4 Ne7 Nb5 g8R Nc3 Rg7 Ne2 Nc6 Ng4 Qf7 Bf5 c8Q Nh6 Qcc7 Ng8 c3 Bd7 Rd2 a2 Rh2 a1B Rf2 Ng3 Nb4+ Ka7 Na2 Qe3 Re8 Ne4 b8B+ Ka6 Ba7 Re2 Rb8 Nef6 Rb5 Ne8 Bd4 Nh6 Bc5 Rg8 h8B Bc6 Rh7 Bh1 Bf6 Rg7 Ba7 Ng8 Bd8 Qe5 Be3 Qf6 Be7 Bb7 Rh1 Qb6 Bf6 Bh2 Re1 Bg1 Bc5 Rg6 Rh2 Bg2 Rc2 Be3 Qce7 Bh6 Nh7 Qc7 Rb8 Qe5 Kb3 Qd5+ c4 Be5 Bh4 Qe6 Ng5 Bh8 Qd8 Bd2 Be3 Bf8 Qd6+ Bc6 Rf2 Ka5 Rb2 Qf6 c5 Bb4 Qe5 Be4 c6+ Bbc5 c7 Qb6+ Kc4 Rd6 c8R Rd7 Qd6 Ra6 Rc2 Ba8 Rb7 Ba3 Qb8 Bad6 Rc6 Ra7 Qc7 Ra6 Rc3 Rb2 Rcc2 Ra7 Rcd2 Ra6 Kd5 Kb5 Rc4 Ra4 Rb4+ Ka6 Rb5 Ra3 Kc4
bnBk4/Brq1n2n/1RB2brp/1PN5/b1N4b/Q1RB4/1K2N1BQ/1R6 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 exf4 a4 d5 axb5 Ba3 c4 Be7 cxd5 Bf8 d4 c5 Kd2 f5 Kc2 h6 g4 c4 e4 f3 e5 f2 e6 c3 g6 f4 e7 f3 a6 Kd7 e8B+ Kc7 g5 Qd7 g7 Be7 g6 Bh4 a7 Bg5 d6+ Kd8 d5 Nf6 g8R Qf7 g7 Nh5 d7 Kc7 d8Q+ Kb7 d6 Bh3 d7 Bh4 Qd2 Nf6 Ra6 Rh7 Qe7 Kc7 Na3 Bg2 d8N+ Kc8 Bc4 f1N Ne6 f2 Rf8 Bd5 g8B Ne3+ Kb3 f1B Qh2 c2 Ne2 Nf5 Be3 Bfg2 Kb2 Rg7 Rb1 Nh7 Qed6 Rg4 Rc6+ Qc7 Rf6 Ne7 Bd3 Ba2 Rc3 Bb3 Nc4 Ba4 Qa3 Rg6 Bb6 Bh1 Nc5 Kd8 Be6 Bb7 Bh3 Bg2 Rc6 Bf6 Bc8 c1B+ Ka2 Bd2 Kb2 Bdg5 Bed7 Be4 Bh3 Bh4 Bg2 Na6 Re6 Rb8 a8B Bf3 Ba7 Rb6 Bae4 Nb8 Bf5 Bc6 Bfe4 Ba8 Rc6 Rb7 Rb6 Bf2 Bd5 B2h4 Bc6
N2R2q1/P1r1p2N/r1n2R2/1Q2QB2/BNb3rn/3r1BbK/1N2Q1N1/bk6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 h6 g4 Bg7 g6 Bf8 g7 Qd7 Kf2 Qd6 Ke1 Qd8 g5 Na6 g6 Rh7 Bb2 Rh8 Bf6 Nb8 Bg5 hxg5 Kf2 Kd7 Kg2 Kd6 a4 Kc5 d4+ Kb4 h4 b5 d6 c5 h5 g4 d5 g3 d7 c4 h6 c3 f6 c2 f7 Kb3 d6 Kb2 h7 c1R a6 b4 a5 b3 a7 Qc7 d8N Qb6 a6 Qb5 d7 Qc4 Nc3 Bb7+ Kh3 g2 Bd3 Bf3 Qe2+ Rc2 Nc6 Qb5 d8Q Qb7 Nb4 Bh5 Qe8 Qe4 Qb5 Nh6 g8B Qb7 Rd1 Nf5 Nf3 g1B Ne1 Bg7 f8N Bh2 Ng2 Nh4 Bd5 Rg8 h8Q Qc8+ Bf5 Bg3 Bf3 Nc6 Rhf1 Bf6 g7 Bf7 Nh7 Bc4 Rd7 Qf8 Nd1+ Kb1 Rd8 Ba1 Rf2 b2 Rf1 Rb8 a8N Rb6 a7 Ra6 Bd7 Rd2 Bf5+ Rd3 Rf2 Kc1 Rf1 b1R Rf2 Rb2 Rf1 Rbd2 Nb2+ Rd1 Rf2 Kb1 Rf1 Qe8 Rf2 Rc1 Rf1 Rf8 g8B Rf7 Qf6 Rg7 Qfe5 Rg4 Bge6 Qg8 Rf2 Ba2 Bb3 Rc5 Ba4 Bc4 Bd5 Nd4 Rf4 Rc7 Bf3 Nc6 Bg6 Qh8 Rf6 Qg8 Bf5
1n6/4r1n1/2BNr1Qk/4BB2/N1qR1NQ1/b2Q1p1b/qR2P2b/b1NN3K b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 f5 Kg2 Kf7 d4 c5 h4 g5 d6 Kg7 d5 c4 d7 c3 d6 c2 h6+ Kh7 a6 g4 a7 g3 h5 Na6 b6 Nc7 b7 Ne8 b8Q Ngf6 Qb6 Qc7 d8Q Rb8 a8B Ng7 d7 Ba3 Nh3 Rb7 Nd2 Rf8 Nb3 Qb8 Bb2 c1B Nf2 Be7 Ra2 Qe5 Rh4 f3+ Kh1 f4 Qdd4 Rf7 Bh3 Nge8 Nd1 Rc7 Bc6 f2 Bg4 Bd2 Nc1 f1Q+ Qg1 Qe3 Be5 f3 Rb2 Ng7 Bh3 Bc5 Rd4 Re7 Qa6 Qg5 Bf5+ Qg6 Qd3 Bc3 Qe8 Re6 d8N Nd7 Nb7 Ba3 Nc5 Nb8 Na4 Rce7 Qf7 Qe1 Qf6 Qd2 Qh4 Qc2 Qg4 Qb1 Qg2 Qa2 Qg1 Kg8 h7+ Kf8 h8N Qf7 h6 g2+ Kh2 Kg8 Ng6 Kh7 Nf4+ Qg6 Qf2 g1B+ Kh1 Bh2 Qfg3 Qc4 Rc2 Ba1 Rb2 Kg8 Qg2 Qf7 h7+ Kf8 h8N Kg8 Nfg6 Kh7 Q2g3 Qg8 Nf7 Bd7 Nd6 Kh6 Nf4 Qa2 Qg1 Qc8 Bce4 Qcc4 Bc6 Be8 Qh3+ Bh5 Qhg3 Bg4 Q3g2 Bh3 Qg4 Qab3 Q1g3 Qa2 Q4h4+ Nh5 Qg1 Rg6 Qf6 Ng7 Qf7 Rf6 Qg4 Rfe6 Qfg6+
2b1q3/1Q1RQq2/1b1Q2Pq/5Nr1/K1N2Bqr/1nB1BpR1/5n2/1B1Bk1N1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 exf4 a4 d5 axb5 Ba3 c4 Be7 cxd5 Bf8 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb3 f5 e4 h5 g4 h4 a6 f3 b6 f4 b7 h3 a7 h2 e5+ Kc7 e6 Kb6 g6 c4+ Ka4 c3 e7 f2 e8B c2 g5 f3 g7 Bc5 g6 Nh6 g8N Be7 d6 Nd7 b8B Bg5 d5 Kc5 Na3 Nf5 Ne7 Rh4+ Nc4 Nh6 Nf5 Ng4 Bd3 f1Q Bb2 c1Q Bc3 Qe3 Bb1 Qe6 Qe1 Qef6 Qe7 Qg2 Bc7 Rb8 a8Q Be3 Qb7 Qf7 Ra2 Nf2 Rd2 Qg4 Rd4 Nf6 Bc6 N6e4 d7+ Nd6 Rd1 Qde8 d8B Bd4 Qe1 Nb5 d6 Be3 d7 Nd4 Bf4 Nb3 Bdg5 Bd4 d8Q Be3 Qa8 Rb5 Rd7 Bd4 Qb7 Be3 Nh3 Bd4 Rg1 h1Q Rg3 Be3 Ng1 Bd4 Na3 Be3 Nc2 Kc4 Qd1 Qh2 Qe7 Bb6 Qdd6 Rd5 Be3 Kd3+ Bgf4 Qh1 Ba2 Qhh3 Na3 Qh2 Nc4 Qhh3 Nd4 Rg5 Nf5+ Kc2 Bd5 Kd1 Bb1 Qh2 Bce5 Qh1 Bde4+ Ke1 Bec2 Qh5 Bh8 Qg2 Bhe5 Qh6 Bd1 Qh3 Bf6 Qg4 Bc3+
Q4Rn1/B2NnP2/8/1qrb1Qb1/2pRbb1N/2R3N1/1B2qk2/K1RrR2Q b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b4 h5 gxh5 a6 b6 Kd7 b5 Nc6 b7 Ke8 b6 Nb8 Bb5+ axb5 f4 Kd7 d4 Kd6 Kd2 e5 Kc2 c5 Kb2 g5 h4 b4 f6 e4 h6 g4 f7 e3 h7 c4 f5 g3 h5 b3 f6 e2 h6 e1Q Nd2 g2 Qf3 Qc7 Ne4+ Kd7 d6 Ke6 d5+ Ke5 d7 Kd4 d8Q Qb4 d6 Bg7 f8R Ne7 d7 Qf4 f7 Qg4 Qf5 Qb5 Ng3 Nbc6 b8B Bb7 Ba7 Bf6 Kb1 Ng8 Bb2+ Ke3 Nf3 g1B Nh4 Bf2 Re1+ Qe2 Qe8+ Nce7 d8R Bh1 Rd4 Rd8 b7 Bg5 b8N Bd5 Nd7 Rc8 Qd8 Rc5 Qa8 Bf4 Rc1 Be1 Ra3 Kf2 Ka1 Ba5 Re8 Bd8 Rf8 Ng6 Re8 Bg5 Re3 N6e7 Rec3 Qg4 Ra6 Qe2 Re6 Nf6 Ree4 Rd8 h8Q Nfg8 h7 Qd2 Ree1 Qe2 Ba3 b2+ Ka2 b1B+ Ka1 Be6 Qh1 Be4 Bb2 Nf6 Qf8 B6d5 h8R Nfg8 Qe8 Nf6 Rf8 Nfg8 Nf6 Rd7 Qa8 Bb7 Rd2 Rd3 Nd7 Bbd5 Rdc2 Rd1 Rd2 Nc6 Rdd3 Nce7 Rd4
n3BK2/3R1Qrr/bn1r3R/B5R1/2q4k/1Q1Bp2P/qR1n1q2/1NN1N1R1 b - - 0 1 legal: proof: b4 b5 g4 h5 e4 hxg4 a4 a5 c4 d5 cxd5 f5 exf5 e6 axb5 a4 Ra3 Bc5 Ra2 Bb6 Ra1 Ba5 bxa5 Rh6 Bh3 Rh4 Bf1 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 c5 f4+ Kh5 d4 g5 f6 c4 f5 a3 a6 c3 a7 a2 b6 c2 f7 Qf6+ Kd6 Nh6 f8Q Bd7 b7 Bc6 Bd2 c1Q Qf7+ Kh4 Ne2 g3 Ba5 g2 Qb3 Qb2 Nc1 g1Q Bd3 Na6 b8R g4 h3 Qf1 Rg1 g3 Rb5 Qg7 Ke7 e5 f6 e4 d6 e3 d5 g2 d7 Ng4 d8N Bb7 d6 Qbf2 d7 Ne5 Ne6 Nc4 d8R Nb6 Rd7 Qg8 Ng5 Rd8 a8B Rh7 Rbd5 Bc8 Bc6 Nc7 Rb5 Ba6 Nf3+ Kg3 Rb4 Nca8 Ne1 Q1e2 Rb5 Kh4 Re5 Qgg4 Rg5 Qc4 Ba4 Rc8 Bb5 Rc6 Kf8 Qd2 Nc3 Qb2 Rb1 a1N Ba4 Qa2 Rb2 Rd6 Nb1 Qg4 Rc7 Qc4 Be8 Nc2 Rd7 Nd4 Qg7 Nf3 f7 Rf6 Kg8 Re6 f8R Nd2 Rf6 Rc6+ Kf8 Rd6 Rf1 g1R Qf7 Rg2 Rg1 Rg4 Rb5 Rg6 Rbg5 Rgg7 Rh6+
k2r1b1r/1Nr5/bN4Q1/Pq2B1B1/QRQ4r/brBB1K2/2p5/R1B1Nn2 b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra4 f4 Qd6 fxg5 Kd8 h4 Ra8 h5 Nf6 g6 Ke8 g5 Qd8 g7 Ng8 Kf2 Nd7 Ke2 Ne5 Ke1 Ng6 hxg6 Qd7 Na3 Qd6 Nb1 Qd8 Ke2 Kd7 a4 h5 d4 b5 f6 e5 a5 c5 f7 Kc7 d6+ Kb7 d5 h4 d7 c4 d6 c3 Kf3 b3 Na3 b4 Bd3 b2 Nc4 b1R Nb6 h3 Qa4 Qe8 d8B c2 d7 h2 Bc7 b3 d8B Nf6 g8Q b2 g7 Qb5 g6 Nh5 Bdg5 Ng3 Qh7 Ra7 g8Q Nf1 g7 Ra8 Qg6 e4+ Kf2 e3+ Kf3 e2 Be5 Ba3 f8B e1B Qgc4 Beb4 g8N Bd6 Bfh6 Bf8 Ne7 Ra7 Bcd2 Rd1 Nf5 b1R Bdc3 Rb3 Nd6+ Kb8 Bc1 Ba6 Bhg5 Rc7 Nb7 Rh4 Nh3 Rd2 Nf4 Rd1 Rg1 h1R Rg4 Rh8 Ng2 R1h4 Ne1 Ka7 Be2 Rd8 Bd3 Kb8 Qcc6 Ka7 Rb4 Kb8 Qc4 Ka7 Nd7 Ka8 Nb6+
KN6/1rQr2Nb/1k2RQ1P/n3b1p1/1q5Q/3N1BB1/R1r1r1Q1/RbrQ4 b - - 0 1 illegal: No possible last move
4BK1N/bQ2RQBQ/1R1Nq1Q1/5QNp/1bP3kB/1r2b1n1/3bb3/q6n b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 h4 cxd4 e4 g4 f4 g3 e5 Ra7 f6 Bb7 b6 Qc7 f5 Qc6 Bc4 Kd8 Bf1 Bc8 f7 Qf6 exf6 Rc7 Bh3 Rc3 Bg2 Rf3 Bf1 Rf4 Qd2 Rg4 Qd1 Rg5 hxg5 Ba6 Rh2 Bb7 Rh1 Bc8 Kd2 d5 Kd3 Kd7 b4 h5 g6 e5 g7 g2 b7 a4 b5 a3 b6 a2 Nh3 g1B Na3 Be7 f8N+ Kd6 f7 Nh6 g8Q Nc6 f6 Be3 Qg6 Bg4 Ng5 Nf5 Bb2 Ng3 Rb1 a1B c4 Rh6 Bg2 Rh8 Rh2 Nh1 Qc2 Bf3 Qh7 Bd1 Ng6 Rb8 f8Q Kd7 f7 Bb4 Nf4 Ne7 Ng6 Nf5 Nb5 Nfg3 Nh8 Bbd2 Qfg7 Ke7 Qgg8 Kf6 Nd6 Bf3 f8B Bg4 Bc1 Bac3 Be4 Bb4 Bg6 Bc5 Be8 Bdb4 Qg2 e4+ Kc2 d3+ Kb3 d2 Qgf7+ Ke5 Qg1 d4 Re2 d3 Bh6 Bf5 Bg7+ Kf4 Bcb2 Kg4 Bbf6 Bg6 Ka4 d1Q+ Kb5 d2 Kc6 Qc2 Kd7 d1Q Ke7 Qa2 Kf8 Qa1 Be7 Qd5 Ree1 Qe6 Bd8 Ra8 b8Q Ra3 b7 Rb3 Qc8 Ba7 b8Q Qf5 Qf1 Bbd2 Qb4 Ra3 Qa6 Beb6 Qc8 e3 Qe6 e2 Nf3 Bc5 Qb5 Bd4 Rb4 Rb3 Bh4 Bdc5 Qef6 Qfe5 Qf2 Bd3 Qbb7 Qe4 Rb6 Bdb4 Rg1 e1B Ng5 Bed2 Re1 Bd4 Re3 Be2 Q6g6 Qd5 Re5 B4e3 Re7 Qe6 Q2f5+
1K4BN/QBQrq1r1/1PR2k2/p4B2/7q/R2rQ2B/nb1NNr1n/1B4r1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 g4 Qf6 b3 Kd7 Bb2 Qd6 Bd4 Qb4 Be3 Ke8 Bf4 gxf4 h3 Qe7 g5 Bg4 hxg4 Qd8 Kf2 Ke7 Kf3 c5 Ke4 h5 d4 a5 g6 f6 b6 h4 g5 h3 b4 f3 b5 f2 g7 h2 b7 c4 e6 c3 g6 c2 d6+ Ke8 Kd5 c1R e4 f5 e7 f4 e5 f3 b6 Rc2 Nd2 Rh4 Qe2 Re4 Bh3 f1R Ra3 f2 Qe3 Rc7 Ne2 Na6 b8Q Rh4 Qa7 Rd7 Kc6 Rf4 d5 Rb1 Rc1 Nf6 g8B f1Q g7 h1R Bh7 Kf7 g8B+ Kg7 e8B Qg1 e6 Rb8 e7 Qf1 Beg6 Rbb7 e8B Qf2 Bgf5 Rg1 Bh5 Rd1 Bf3 Ng4 Rc5 Nh2 Bh1 Rf7 d7 Kf6 d6 Qe7 d8N Rg7 d7 Qh4 Nf7 Rf2 d8Q Rd7 Qdc7 Nb4+ Kb7 Na2 Kb8 Rdg1 Rc4 Rb3 Bb7 Rbd3 Nh8 Qee4 Rb3 Ba3 Rc6+ Qe6 Rbc3 Bb2 Ra3 Qd6 Bb3 Qe6 Bc2 Qd6 Bg8 Qe6 Bb1 Qd6 Rc5 Qe7 Rc6+
1Q6/3nb1Pk/r2pq2r/8/qRQR3B/RNR1qN2/2qq2R1/1Q1B1KNn b - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 b4 e5 c4 h5 b6 a5 b5 d3 c5 d6 c6 a4 b7 a3 f6 a2 g7 Kf7 c7 Kg6 c8R e4 b6 e3 f7 e2 Rh4 Nc6 b8R Ra7 b7 Qe7 Nd2 Ne5 Rc3 Rh6 Ndf3 Nf6 g8R+ Kh7 Bd2 Qe6 Qb1 Nc6 Rg6 Be7 f8N+ Kh8 Be3 Nd4 Nd7+ Kh7 Bf2 Ra6 Nc5 Nf5 Nb3 Nd7 Bg3 d2+ Kf2 d1Q Rgg8 Rf6 g6+ Kh6 g7 e1Q+ Kg2 Qed2+ Be2 Q1c2 g5+ Kh7 Rd4 h4 Kf1 h3 Bd1 h2 Bh4 h1Q g6+ Kh6 Ne5 Qhe4 Nef3 Q4e5 Rge8 Qef4 g8Q Qfe3 g7 Kg6 Qf7+ Kh7 Rec8 Rh6 R8c5 Qg6 Qc4 Qge6 Re5 Qed3+ Re2 Ng3+ Kf2 Nh1+ Kf1 Q3e3 Rg2 Ne5 Ra8 Nd7 b8Q Rb6 Ra4 Rc6 Qc1 Ra6 Rb1 a1Q Ra3 Qaa2 Rb2 Qa1 Qb1 Qa2 Ra4 Qa3 Rb4 Qa5 Ra2 Qa4 Ra3
6Kn/2bQ4/2Nb1NQR/2r2Q1R/5qQ1/1pbbQ2r/1kP1qR2/3B1rBN b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 b5 dxc5 f5 e4 Nc6 exf5 axb4 a3 b3 a4 b4 Qf3 Nd4 Qd1 Nb5 axb5 Bb7 Qf3 Ba6 Qd1 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 h4 g5 b6 e5 b7 d6 b8N b2 c6 g4 c7 g3 f6 b3 h6 g2 f7 Nf6 f5 Ra5 h7 Qe8 h5 Qd7 h6 Bb7 c8Q Ra3 Be3 Ra2 Nh3 g1B Be2 Nh5 f6 Qf5 Qd7 Bh2 Rf1 Ra8 Ra6 Nf4 Bg1 Ng6 Nf2+ Ke3 Bh5 e4 Nc3 b1R Nh1+ Qf2 Rb6 Ba6+ Kd5 Be2 Ke6 d5 Rb5 d4 Nc6 d3 Rc5 Be7 f8Q d2 Kf7 Bd3 Qfe8 Bc7 Kg7 Bed6 f7 Ra5 f8Q Rba1 Rg5 Rb1 Qff5 Rc5 Be2 Rc1 Qe1 d1Q Qef7 Rd8 h8Q Ra1 Qh7 Rh8 Qhg8 Rb1 h7 Rc1 Nb4 Kd4 Ncd5 e3 Nf6 Qf4 Rf2 Qd2 Bf3 Kc3 Nc6 e2 Qfe8 Kb2 Qd1 e1B Qe3 Ne5 Qge8 Ra1 Qeg6 Nf7 Qde2 Qd1 Bh5 Bc3 Q2f3 Rb8 h8R Rd8 Rh7 Rh8 Bg4 Qd2 Rh3 Rh6 Kg8 Nh8 Qg3 Re1 Bd1 Qe2 Rhh2 Rf1 Qgf3 Rh3 Q3g4 Rg3 Rh6 Rh3 Rgh5
qnRB1Qrr/5N2/1Nq2BP1/1b3B2/2QR2K1/pnkn4/2rnB1Q1/2N3B1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kf3 Kd6 d4 h5 b4 e5 g7 c5 g6 a5 f6 h4 f7 h3 f8Q+ Ne7 g8B c4 b6 h2 b5 c3 b7 c2 b6 a4 Nc3 a3 Qd2 Qe8 Be6 e4+ Kg4 f3 Nge2 f2 Bf5 e3 Na4 Rg8 Bb2 Rg7 Rc1 Na6 b8B+ Nc7 b7 Qc6 Ba7 Bd7 b8Q Rg8 Qb7 Na6 Qb5 Nc5 Nb6 Nb3 Qc4 Rc8 Rg1 h1Q Rd1 Rd8 Nc1 e2 Qg5 e1R Be2 f1N Rg3 Nfd2 Rc3 Rf1 Ba1 Rf2 Bb2 Kc7 d6+ Kb7 d5 Rh8 Qff6 Rdg8 Qf8 Be8 d7 Kc7 d8B+ Kd6 Qb5 Ke5 d6+ Kd4 d7 Qa8 Qa6 Nc6 Qb5 Nb8 Ba1 Rf3 Rc8+ Rc3 Qc6 Qd5 Qh4 Qe6 Qh2 Qd6 Qhg2 Qc5 Qe6 Qcc6 Qc4+ Ke3 Nd3 c1N Bb2 Rc2 Bbf6 Na2 Nc1 Nb4 Bde7 Nd3 d8N Qc7 Nf7 Bb5 Bd8 Qd6 Rf1 Qdc6 Rf4 Nf3 Qe6+ Kd2 Rd4 Kc3 Qc4+ Kd2 Rd7 Rc3 Nd5 Kc2 Bg1 Nfd2 Nb6 Kb2 Rd4 Rc2 Qe6 Kc3 Qc4+
n5Q1/N7/Kn1P1N1R/4bbkB/2RQRp2/nn1rB3/Q2Nq1b1/R4R1q b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 g5 h3 Ra6 h4 Rg6 gxf5 exf4 Bg2 g4 Bf1 Rg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 e4 Ke7 Ke2 c5 Kd3 h5 Kc4 g3 b4 h4 d4 h3 f6+ Kf7 b6 Kg6 Kb5 a4 b7 c4 d6 h2 d7 c3 e5 g2 f7 c2 d5 a3 d6 a2 e6 Ne7 Nf3 g1N Nbd2 Qe8 Ne4 Qd8 Qd4 Nf5 e7 Bg7 f8R Rh7 e8R Ne2 Rh8 Rh5 Be3 c1N Nfd2 Qe7 d8N Rh4 Nf6 Rh3 Nc6 Nd7 b8R Nb6 Na7 Nb3 Ra8 Be6 Ka6 Nc3 b5 Nca4 Rac8 Na8 Rc4 N4b6 Be2 Rf3 Rhc1 h1B Rf1 Bg2 Rh2 Bd7 Rh3 Qe4 Bd1 Qd3 Re4 Qe2 Rh7 Ne7 Rh4 Nec8 Rh6+ Kf5 g6 Kg5 Rh7 Bf5 Rh6 Bh8 g7 Rg3 g8Q+ Bg7 Rc3 Nc4 b6 Na3+ Rc4 Rh3 b7 Ncb6 b8Q Rf3 Rc1 a1Q Qgd5 Rg3 Qbg8 Qb1 Re6 Qe4 Ra1 Q4f3 Re7 Qh5 Re4 Qh1 Bg1 Rd3 Be3 Qe1 Bh5 Qe2 Qa5 Nb1 Qa2 Na3 Qf7 Bh8 Nd5 Be5 Nf6 Qg1 Qh7 Qh1 Qg8+
2q5/B4N1P/1RR1bB1q/NQ6/n1r2k1p/3qb1B1/2Q1nBR1/KB3Nnq b - - 0 1 illegal: No possible last move, all moves rejected
rq2BQQn/kq1R3P/b3KR2/3pBn2/q1RN1B1b/4B2n/3NB2Q/7q b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 a4 Qb6 axb5 a4 Qd2 Ra7 Qd1 Ra5 bxa5 Qd8 Ke2 d5 Kf3 Kd7 Kf4 Kc7 Ke5 Kb7 h4 g5 c4 d3 f4 e6 b6 d2 h6 g4 c5 a3 h5 g3 h7 g2 c6+ Ka8 c7 a2 b7+ Ka7 a6 Ba3 f6 Ne7 f7 Bc5 f8Q Kb6 f5 Qe8 h6 Qg6 f6 Ka7 f7 Rg8 h8B Nf5 h7 Be7 Qc2 d1Q Nf3 g1N Nbd2 Nh3 Nd4 Bh4 Be2 Qf1 Rh2 Qh1 Rf2 Qg3+ Rf4 Qgh2 Qd8 Qg3 f8Q Qgh2 Rb1 a1Q Rb4 Qg3 Rc4 Qa4 Qg5 Nc6+ Kf6 e5 b8B+ Kb6 a7 e4 a8B Ne5 Bc6 e3 Be8 Ba6 c8R Nf7 Rd8 Qgh2 Be5 Ka7 Ke6 Qg3 Bhg7 Nh8 Bh6 Qgh2 Qg2 Qg3 Qb2 Qg7 Rf3 Qb7 Rd7 Qh2 Bhf4 Qg3 Bd1 e2 Be3 e1Q Be2 Qh1 Qh2 Ne7 Rf6 Nf5 Qba3 Qf4 Qf7 Rf8 Qg8 Qg3 Bf7 Ra8 Qaf8 Qf4 Be8 Qg3 B3f4 Qgb3 Nb1 Qbb5 Bce3 Qbb3 Nd2 Qb2 Rd6 Qb8 Rd8 Q2b7 Rd7
4r1R1/1K4Bp/1Q5N/1b3b1N/r2qkbB1/PN1Q4/1Q2qrrQ/3nBQ1R b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra4 f4 Qd6 fxg5 Kd8 h4 Ra8 h5 Nf6 g6 Ke8 g5 Qd8 g7 Ng8 Kf2 Nd7 Ke2 Ne5 Ke1 Ng6 hxg6 Qd7 Na3 Qd6 Nb1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 d4 b5 f6 c5 f7 c4 a3 b3 Bh3 b4 Bg4 c3 Nd2 b2 Qf1 b1R Nh3 c2 Nb3 Nh6 g8N Ba6 g7 Qc7 g6 Be2 Nf4 Nf5 Nh6 Qc6 g8Q Qc3 g7 Rb2 Nh5 Bb5 Bd2 c1R Be1 Rf2 Ra2 Be7 f8B Ra4 Qf7 Qc4 g8Q Rcc2 Qgg7 Ne3 Qf4 Nd1 Qh2 Rg2 Rb2 Rcf2 Rc2 Rg8 Qh8 Qc5 Bg7 Bg5 Rc3 Qa7 Rc8 Re8 Rb8 Bf4 Rd8+ Kc7 d6+ Kc6 d7 Kd6 d5 Qd4+ Kf5 e4 Ra8 Kc7 d6+ Kc6 d8Q Kd5 d7 e3 Qb6 e2 Rc8 Qd2 Kf6 Ke4 d8Q Qd4+ Kf7 Rg8 Ke6 Rf8 Bd2 e1Q Qd7 Qe2 Be1 Rf6+ Ke7 Re6+ Kd8 Re5 Kc7 Re7+ Kb7 Re8 Na1 b3 Ra8 b2 Nb3 b1B Rb8 Qf6 Qd2 Qd4 Qb2 Re6 Qhd8 Re8 Qdd6 Ke3 Rc8 Bf5 Qd7 Ke4 Rd8 Re7 Rg8 Re8 Qdd6 Qde3 Qdd2 Qd4 Qd3+
3k3K/Q2n4/2bPQ2b/1b2n1R1/npN3qB/nNN2BrR/R3b2N/N1B5 b - - 0 1 legal: proof: f4 g5 g4 b5 c4 d5 fxg5 f5 g6 f4 g7 a6 cxd5 f3 h4 Qd7 h5 Qd8 g5 a5 b4 axb4 exf3 Ba6 f4 Bc8 f5 Ra3 Bh3 Ra6 Bf1 Rg6 hxg6 Ba6 Qe2 Bb7 Qd1 Bc8 Kf2 e5 Kf3 h5 Ke4 c5 a4 c4 d4 h4 f6 h3 d6 c3 a5 c2 a6 b3 d5 b2 f7+ Kd7 Kf5 h2 a7 b4 a8N e4 Nf3 e3 Bg2 e2 Qd4 e1N Qa7+ Qc7 Nbd2 b1B Ra2 Nc6 Nb3 Be7 f8N+ Ke8+ d7+ Kd8 Na1 Qg3 Nb6 Na5 Nc4 Nf6 g8R Rh5 g7 Nb3 Kg6 Rh3 Kf7 Bb7 g6 Kc7 d8B+ Kc8 d6 Ba6 Ba3 c1N Nd7 Ncd3 Bc1 Bf8 Nc5 Bb5 Be7 Nd7 Bh4 Nd2 Ncb3 Nc2 Rf1 h1B Nh2 Qg4 Rf3 N3c5 Rg3 Nf1 Bf3 Na4 Rh8 Na3 g8N Bd3 g7 Nd2 Ne7+ Kd8 Kg8 Be2 Nd5+ Qg5 Rg1 Rg3 Nc3 Bg2 Kh7 Bh1 g8Q Bg2 Bc6 Nf3 Qe6 Nfe5 Bf3 Bh1 Rg8 Bg2 Kh8 Bh1 Rg6 Bh6 Rf6 Qg4 Rf5+ Nf6 Rg5 Nfd7 Rd1 Bg2 Rd3 Qh3 Bh5 Bgc6 Bf3 Qg4 Bh1 Rg2 Rh3 Rg3 Bf3
1Qnk1RR1/nK1B3b/2r3Rr/p2bRQ2/8/NbBB2R1/1Q3P1b/n1N4n b - - 0 1 legal: proof: b4 a5 h4 b5 e4 d5 a4 f5 axb5 g5 exf5 gxh4 c4 Na6 cxd5 Qd7 b6 Nb8 b5 Qc6 Bc4 Qb7 Bf1 Qa6 bxa6 Bd7 Qf3 Be6 Qd1 Bc8 Ke2 c5 Kd3 e5 Kc4 h5 Kb5 c4 d4 e4 g4 c3 f6 c2 g5 e3 a7 h3 g6 h4 f7+ Kd7 b7 e2 Kb6 e1N d6 h2 d5 h3 g7 Ne7 g8R Rh7 Qd4 Nd3 Na3 Nb2 Bd3 Rh6 Rg3 Kd8 Bd2 c1N Ne2 Nbc6 b8Q Nf5 d7 Bd6 Bc3 Nb3 Rae1 Na1 Rhg1 h1B Nc1 h2 Re5 Be4 Rg6 h1B R1g3 Bhg2 Qc5 Bgf3 Qb7 Rb8 a8B Nc4+ Ka6 Bc7 Qb5 Ncd6 f8Q+ Ne8 Qb2 Bd1 Qf7 Ned6 Qe6 Bb3 Qf7 Ne3 Qe6 Nf1 Qf5 Ne7 Ka7 Bg2 Qb5 Rb6 Bc6 Ba6 Qb4 Nec8+ Ka8 Bf3 Ba4 Rc6 Qb8 Bac4 Bb5 Bc2 Ba4 Nb5 Kb7 Na7 Bb5 Re6 Bc6 B4b3 Ba4 Ke7 d8R Bh1 Rh8 Be4 Be8 Kd8 Rhg8 Rc6 d6 Bed5 d7 Bd6 Rg1 Ng3 Rg2 Nh1 R2g3 Bb1 R3g5 Nc2 Re7 Ng3 Qe6 Nf1 Ba6 Nh2 R6g7 Na1 Qf6 Bf5 Bd3 Bh7 R7g6 Nf1 Qf5 Bh2 Re5 Ng3 Rg4 Nh1 Rg3 Be6 Bf7+ Ke7 d8R Nb6 Rdf8 Nbc8 Be8 Kd8 Rff6 Bec4 Rff8 Bd5 Bd7#
2q1n3/R4R2/r3B2B/Bq1qQ1bQ/2R3KN/P3qB2/NqQb1p1k/1B3b2 b - - 0 1 legal: proof: c4 b5 b4 a5 g4 axb4 f4 d5 cxd5 e5 fxe5 g5 Bg2 f5 Bh3 f4 Bf1 Nc6 h3 Nce7 h4 Nf5 gxf5 g4 Qa4 Ra6 Qc2 Rg6 Qd1 Rg5 hxg5 Kf7 Qb3 Ke7 Qd1 Ke8 Kf2 Ke7 d4 h5 e4 c5 f6+ Kf7 d6 Kg6 f7 c4 d5 g3+ Kf3 h4 e6 Kh5 d7 c3 g6 b3 d6 c2 e5 g2 g7 b2 e7 b4 e8Q h3 e6 Kh4 e7 h2 Bd3 b3 Nc3 Nf6 g8B Bg7 f8R b1Q Be6 b2 Rf7 Ba6 a3 Qc8 d8B Rh6 d7 Rg6 Na2 Bh6 Ba5 Bg5 d8Q Rh6 Qa4 Ne8 Qd6 Rf6 Be4 Bf1 Qe5 Rh6 Bcd2 c1B Qac2 Rf6 Be3 Bd2 Qe2 Qc1 Bd3 b1Q Bdf5 Nd6 e8B Qb5 Bc6 Ne8 Rb1 Rh6 Rb4 Qb2 Rc4 Rf6 Qcd1 Rg6 Bb1 Rh6 Qc2 Rf6 Ke4 Kg3 Nf3 g1Q Nh4 Rh6 Kf5 Rg6 Qd5 f3 Qe5+ Kh3 Bf4 Qe3 Be4 f2 Qh5 Rh6 Bf3 Rg6 Rg1 h1Q Rg3+ Kh2 Kg4 Bd8+ Bg5 Rf6 Bh6 Qg2 Bf5 Ra6 Be6 Bg5 Ra7 Nf6+ Kf5 Ne8 Bd5 Qa1 Kg4 Qab2 Be4 Qh1 Rf3+ Kg1 Rf4 Kh2 Bd5 Qhe4 Bb7 Q4d3 Bf3 Qdd5 Rff7+
2rNQbq1/qR1Br3/k1N1Rn1P/6N1/1q4Q1/1Q1R2Bq/1Kp2q1r/1Q3Q2 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 a4 g5 axb5 d5 cxd5 h5 Bh3 Nd7 Bg2 Ndf6 Bf1 h4 h3 Nh5 gxh5 g4 Nc3 g3 Nb1 Bg4 hxg4 Bc5 Qb3 Be7 Qd1 Bf8 d4 Kd7 Kd2 Kc8 Kc2 Kb7 b4 a5 e4 c5 e5 f5 h6 g2 b6 a4 d6 h3 d7 c4 d5 h2 b5 c3 e6 f3 g5 f4 d6 a3 e7 f2 e8Q f3 g6 a2 g7 Ra4 Bf4 Qf6 d8N+ Kc8 b7+ Kb8 d7+ Ka7 Na3 Qh4 Bg3 Qg5 Rb1 a1R Nh3 g1Q Nc4 Qc5 b6+ Ka6 b8Q Qc8 b7 Nf6 g8Q R4a2+ Kb3 Rd2 Qg4 c2 Kb2 Ra5 Qde2 Re5 Ng5 Re7 Bh3 f1Q Na5+ Qc4 Qg2 f2 Nac6 Qe1 Qf1 Qe3 Re1 Qa7 Re6 Qg2 Qa8 Qd5 b8Q Rg8 Qb1 f1Q Qb3 Qf2 Rd1 Re2 Rd3 h1Q Qab8 Qb4 Qbf4 Qhf3 Qfc1 Q3g2 Qf1 Qdf3 Nb7 Qf5 d8R Qg6 Rb8 Qh1 Bg2 Qh3 Nbd8 Rh8 Rb7 Qg8 Qfd1 Qfe3 Be4 Rh2 Bf5 Qf2 Qf1 Rhh7 Red6 Rc7 Bc8 Rhe7 Bd7 Rc8 Re6
2NR3b/R1p1b2q/1B2K3/3NP2b/3qRrQb/4Rb1B/2QBk3/1N1R2qn b - - 0 1 illegal: No possible last move, all moves rejected
4qN2/2R1Rq2/7Q/2n1pq1Q/1k1NQ3/r1RnqqBP/1BK1B2R/R5rr b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 h4 g5 Be2 h5 Bc4 g4 Ra4 g3 Rh3 Bh6 Rh1 Bg5 hxg5 h4 Bf1 h3 Ra5 h2 Ra1 Bh3 gxh3 Rh7 Ne2 Rh4 Ng1 Rh8 f4 Kd7 b4 Kd6 d4 a5 Kd2 c5 g6 e3+ Kc2 e2 b6 e1Q g7 g2 b5 a4 f5 a3 b7 c4 f6 a2 b6 e6 f7 c3 f8Q+ Ne7 g8Q Rh4 Na3 Re4 Qh7 Qe8 Ne2 g1R Nf4 Re3 Qfh6 Qf2+ Be2 Nc8 Bb2 Qf7 Qe4 Ra7 Ng6 Ne7 Nf8 Na6 b8B+ Rc7 b7 Nc6 Nb5+ Ke7 Qb1 Ne5 Qd1 Rc5 Bc7 Q2f5 b8R Nd3 Bg3 e5 Rc8 Rc4 Rc6 Nac5 Rc8 Ra4 Rc6 Ra3 d6+ Kd8 d7 Ke7 d8R Rf3 d5 Rff1 Rb1 a1Q Nd4 Qe8 Rdc8 Qa2 Ra1 Re1 Qhd2 Ref1 R6c7+ Kd6 Re7 Qb3+ Kb1 Qb7 Kc2 Qbd7 Qg5 Qef7 Qgc1 Qde8 Qh6+ Ne6 Qf6 Rg2 Qh6 Nb4+ Kc1 c2 Rc3 Re1 Bc4 Kc5 d6 Rf1 d7 Re1 Rg1 h1Q d8R Rh2 Rg2 Rg1 Kd2 c1Q+ Ke2 Qcg5 Rf2 Qg2 Rdd7 Rhh1 Rc7+ Qc6 Qe1 Qe3+ Kd1 Qf1 Rh2 Q1f2 Rb3 Qg2 Bf1 Nd3 Rc3+ Kb4 Qe2 Nec5 Qeh5 Qgf3+ Kc2 Qce8 Be2
3Kn1N1/4B1Nn/1r1B2n1/p2RnRr1/3n1Q2/kB1N2QN/2rP1q1N/q3Q3 b - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kb3 Kd7 Kb4 Kd6 Ka5 Kc5 b4+ Kc4 e4+ Kd4 d6 h5 b6 c5 b5 h4 g5 g2 g6 c4 e5 Kc5 e6 a6 d7 c3 e7 h3 e8N c2 f5 h2 f6 Rh7 g7 Ne7 g8N Ng6 f7 Rg7 f8N Re7 Nh3 g1Q Qe1 Rg7 Nh7 Qh4 d8B Nd7 b7 Nde5 b6 Rb8 Bc4 f1R Na3 f2 Bb3 Qf4 Bb2 c1N Nc2 Ne2 Nhf6 Nd4 Nb4 Rc8 b8Q Rcc7 Qe4 Rb1 b7 f1N Qe1 Ng3 Ng4 Ngf5 Ba3 Nd6 Be7 Qff2 Ra2 Qgf1 Rg1 h1N Nh2 Rb2 Rg5 Ng3 Rf5 Ne4 Ra1 Nf6 Nd3+ Kc6 Bc5 Nh7 Rc1 Qh1 Rc4 Kd5 Kb6 a5 Ba3 Rc5 Qc7 Rc2 b8Q Rf7 Ng7 Ne8 Kb7 Rf6 Kc8 Rb6 Kd8 Rcb5 Bad6 Qhg1 Qe3 Qa1 Qe1 Rc5 Qca7 Kc6 Qac7+ Kb5 Ra4 Ne2 Rh4 Nd4 Rhh5 Rd5 Qbb7 Rdc5 Qbe4 Rd5 Qf4 Rdc5 Bf7 Ka4 Bb3+ Ka3 Rhg5 Ng4 Rd5 N4e5 Rf5 Rc1 Qee4 Rg1 Qe1 Rg5 Nb4 Rc1 Qc3 Rc2 Qcg3 Rb5 Nd3+ Rb4 Rc5 Rb6 Rd5+
4R2k/Q4n1B/3r1NQ1/2QPq3/K2NR1q1/1nRQN2p/2rqq2Q/B3r2n b - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kb3 Kf8 e4 Kg7 d4 c5 f5 a5 d6 h5 e5 h4 e6 h3 d7 g2 d5 c4+ Ka4 c3 b4 c2 e7 Qe8 d8Q Nc6 g5 Nh6 b6 Qd7 e8R Qa7 b7 Qa6 b8Q Rh7 f6+ Kf7 b5 Nd4 b6 Rh8 b7 Ndf5 Qa7 Qe6 Nd2 Ng3 Bb2 c1Q Ra3 Qe5 Nc4 Qd2 Qd6 Rc8 Ne3 Rc2 Ne2 g1Q b8Q+ Kg6 f7+ Kh7 f8Q+ Nf7 Rh2 Nh1 Nd4 Qg4 Ba1 Rg8 g6+ Kh8 Ba6 f1Q Bd3 f2 Rc3 Qfe2 Qda6 f1R Qfc5 Rg1 Rf2 Rf1 Rf4 Re1 Bf5 Rf8 Re4 Rg8 Qd3 Rf8 Qdb1 Rg8 Kb5 a4 Qbd6 a3 Ka4 a2 Qbb6 Qg7 Qh2 Qe5 Qe6 Rf8 g7+ Kg8 Bb2 a1N Qea6 Nb3 Ba1 Qg6 Qad6 Kh7 g8N Kh8 Q6a6 Qgg4 Nf6 Rg8 Bh7 Rf8 Re7 Rd8 Qe6 Rd7 Qf5 Rd8 Qg6 Rd6 Re8+
KN4nR/4bPQn/3qN1b1/1Rn2p1k/1N4q1/5Qb1/1Q2R1RB/2q2RnB b - - 0 1 legal: proof: c4 h5 a4 b5 axb5 a5 e4 f5 h4 d5 cxd5 g5 f4 Ra6 e5 gxh4 Qg4 Rf6 exf6 e5 Qf3 e4 Qd1 Rh7 Qb3 Re7 Qd1 Re5 fxe5 Bb7 Qa4 Ba6 Qd1 Bc8 Ke2 Kf7 Ke3 Kg6 Kd4 c6 g4 a4 b4 h3 e6 a3 e7 a2 Kc5 e3 d4 e2 f7 e1N b6 h2 g5 h4 d6 h3 e8R Nf6 b7 Nc2 b5 Bh6 d7 Nh5 b6 Bg7 d5 Ne3 d6 Bb2 Qf3 Be5 Na3 Bg3 Ne2 Nd5 Rb1 a1B Nc2 Nhf6 Ned4 Ng8 Bf4 Ndf6 Nb4 Nh7 Ne6 Bf6 Bg2 Be7 Rhf1 h1N Be5 Nf2 Bh1 Qc7 d8R h2 Rb2 Nh3 Rg2 Ng1 Bf4 Bf6 d7 Be7+ Bd6 Nh6 Rh8 Ng8 Rf8 Qd8 Re8 Qc7 d8R Na6+ Kc4 c5 Kb5 c4 b8Q c3 b7 Qc4+ Kb6 c2 Ka7 c1Q Ka8 Nc5 Be5 Q4f4 Rd5 Qg4 Bf4 Kh5 g6 Bd7 g7 Bb5 Qe5 Qd2 Qb2 Be2 Re5 Qd6 b8N Nh6 g8Q Bd1 Qg7 Ng8 Rd2 Be2 Bg2 h1Q Rc2 Qh4 Bh1 Qg5 Rd5 Bd1 Rg2 Be2 Be5 Qc1 Bf4 Na4 Ra5 Nc5 Rb5 Bgh4 Qd5 Qg3 Ka7 Bef6 Qh6+ Kg4 Ng7 Be5 Re6 Be7 Ka8 Bd1 Qg6+ Kh4 Qh6+ Bh5 Qf3 Qg4 Bh2 Bf4 Ree2 Bg3 Qhf4 Bg6 Qfd4 Kg5 Ne6+ Kh5 Qg7
4B3/P3N3/1QnKQ1N1/1R3b1q/1BqbRN1p/6kn/2R1BB1b/n1qnB3 b - - 0 1 illegal: No possible last move, all moves rejected
NR2Kbn1/2B4n/2N1p1k1/1b3Nbn/3P4/bQ1RBb2/N1B1Q1bR/2r1N3 b - - 0 1 legal: proof: f4 b5 c4 a5 a4 d5 cxd5 g5 axb5 c6 h4 gxh4 e4 e6 d4 Ba3 e5 Bf8 f5 Ra7 f6 Qd6 exd6 Re7 fxe7 Kd7 Kd2 Ke8 Ke3 h5 Kf4 f5 Kg5 Kf7 e8N f4 b4 f3 g4 f2 d7 h3 d8N+ Ke7 Kg6 a4 b6 c5 g5 h2 b7 a3 b5 h4 d6+ Kd7 Kf7 h3 b6 c4 g6 a2 g7 c3 Bd3 f1B Qe2 c2 Nc6 Bg2 Be3 c1B Nc3 Ba3 Re1 a1B Rd1 B1b2 Na2 Bc1 Nf3 Rh5 Bc2 Rc5 Rd3 Rc4 Rhd1 h1N Ne1 h2 R1d2 Ng3 Nc7 h1B Na8 Rc3 Nc7 Nh5 Na8 Na6 b8B Nc7 b7 Nd5 Bc7 Ndf6 b8Q Ba6 Qb3 Nh7 Ne7 Bb5 Nf5 Ngf6 g8R Rc6 Rg3 Ng8 Rh3 Bf3 Rh2 Bhg2 Rd1 Bd2 Rb1 Rc4 Bf2 Bg5 Be3 Kc6 d7 Kd5 d8N Ke4 Nc6 Rc5 Nfe7 Rc3 Ke8 Rc5 Ng6 Kf5 Ne7+ Kf6 Nf5 Kg6 Bd1 Rc1 Bc2 Ba6 Qd5 Bc4 Rb8 Bb5 Qb3
K7/1Bb2pr1/B2r2Qr/1N2BBrb/1rQ5/r4P2/1n1R1NB1/Nk2Rb1Q b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g3 Nf6 g4 Ng8 Ke2 g5 Ke1 Qd6 Bb2 Qg6 Bc1 h4 h3 Qh5 gxh5 g4 Bc4 g3 Bf1 Nc6 Nc3 Ne5 Nb1 Ng4 hxg4 Kd8 Nf3 Kd7 Ng1 Ke8 Ke2 Kd7 Ke3 Ke6 Kd4 a5 c4 g2 b6 h3 h6 h2 c6 a4 Kc5 Ke5 d4+ Kf6 b7 e5+ Kb6 e3 b8N e4 g5+ Kf5 d5 e2 h7 e1R c7 e3 g6 Ke4 c5 a3 g7 a2 d6 e2 c6 Be7 d7 Ba3 d8Q Ra4 f3+ Kf5 Qb3 Ne7 Bf4 Ng6 Qg8 Rc1 Na6 e1R Ka7 Nf8 Ka8 Re5 Nc3 Rb4 Nc5 Nd7 Nb5 Rd1 Qc4 Rd6 Rd1 a1R Nb3 Nc5 Nh3 g1R Rd2 Na4 Nf2 Nb2 Bg2 Kf6 Bg3 Bg4 c8B Bh5 c7 Rg5 Ba6 Kf5 Be5 Ra2 Bd4 Kf4 Be5+ Ke3 c8B Raa1 Bcb7 Ra2 Bh3 R1g4 Rf1 h1B Na1 Bg2 Rc1 Bf1 Bg2 Rgg6 Rcd1 R4g5 Rd4 Rh6 R1d2 Rhg6 Qd8 Rg8 h8Q Rh6 Qh7 Rh8 Qhc2 R8h7 g8B Rhg7 Qe8 Be2 Qg6 Bf1 R2d3+ Ke2 Bh7 Ke1 Qh8 Ke2 Rb3+ Ke1 Re4+ Kd2 Qe2+ Kc1 Rd3 Kb1 Rd2 Rb3 Qc4 Bb4 Qf6 Raa3 Bf5 Ba5 Qh7 Bc7 Qhg6 Rg3 Qh4 Rb4 Qh1 Rg5 Re1#
2rq2NK/1rRR2rP/1qqB4/3R1BB1/1Qpb2NN/r6Q/2B1k3/Bq2n3 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 a4 g5 axb5 d5 cxd5 h5 Bh3 Nd7 Bg2 Ndf6 Bf1 h4 h3 Nh5 gxh5 g4 Nc3 g3 Nb1 Bg4 hxg4 Bc5 Qb3 Be7 Qd1 Bf8 b4 Kd7 e4 Kd6 Ke2 Ke5 Kd3 c5 b6 a5 d6 f5 b5 a4 h6 a3 g5 a2 d7 f3 b7 Kf4 b8B+ Bd6 e5 h3 e6 f2 g6 g2 b6 c4+ Kd4 h2 b7 Ra3 h7 Qa5 d8R Rh3 g7 Qb4 e7 Qb2+ Nc3 Qb1 e8B Qb5 Nf3 g1R Bb2 Qa6 Ba4 Rg2 Bd3 f1Q Nd5+ Kg4 Nh4+ Qf3 Qf1 f4 Rd7 Bc5+ Ke5 Qd1 Bd6 f3 b8Q f2 Bac2 Nf6 g8N Nh5 Qb4 Nf4 Kf6 Qb6 Kg7 Bd4+ Ndf6+ Kg3 Rb1 a1R Bf5 Ra7 Ba1 Rb7 Rg1 h1Q d3 Qh5 Rd1 Qe8 Rd2 Qed8 Rc7 Be5 d4 Nd3 d5 Ne1 Rd7 Nf3 Qd3 f1Q Rc7 Qc1 Rgd1 Qb1 Qf1 Ne1 Rd4 Bf4 Qd3+ Kf2+ Ng4+ Kg1 Qg3 Kf1 Qh2 Ra3 Qh3 Be5+ Nf6 Qb5 Be7 Rf8 d6 Qb6 d7 Qe8 d8B Qc5 Rdd7 Ke2 Bd6 Qb6 B8e7 Rg1 Bd8 Qhc6 Rd5 Bd4 B8e7 Bf2 Ng8 Bd4+ Bf6 Qe7+ Kh8 Rc8 Nh2 Rg7 Ng4 Qd8 Bg5
1Q5R/n2kp3/n1Q2B1r/1R6/nr1r3Q/BrrNQ3/2P1K2b/n2BQ1NR b - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f7 Kd6 f5 g5 Qd2 Qb6 Qd1 Kc7 h3 Qc5 f6 Qf5 Ra6 Bb7 Ra3 Kd8 Ra1 Bf3 gxf5 g4 Kf2 g3+ Ke1 Bg4 hxg4 Kc7 Ra5 Kc8 Ra1 Kd8 b4 a5 g5 h5 b6 d5 g6 g2 b7 h4 g7 a4 b5 h3 b6 a3 Nc3 a2 Nf3 g1N Ne5 h2 Rb1 a1N Be2 d3 Rb5 Nh6 g8R d4 Ba3 Na6 b8B d2+ Kf1 Rh7 b7 d3 Rh8 Ng4 Qe1 d1R Ba7 Rc8 b8Q d2 Bd4 Rh5 Bf3 Rg5 Ne2 Rb1 Bc3 d1R Bcb2 Nh3 Rg1 h1R Bc3 Rh2 Rh1 Rb4 Ng1 Nhf2 Bcb2 Rd2 Bd1 Rh6 Bc3 Rd3 Ke2 Ne4 Bcb2 Rdb3 Nd3 Rgg6 Qb6+ Rc7 Qe3 Rg8 Bd4 Bg7 f8Q+ Kd7 f7 Rcc3 f6 Ne5 Qb8 Nec5 f8Q Na4 f7 Nc6 Qh2 Bf6 Qhh4 Be5 Qb8 Rg4 f8Q Na7 Qff3 Bh2 Bf6 Rgd4 Qc6+
rQ2n1N1/1QB1R2N/n4Q2/1PQr2p1/B3qR2/bb1n2p1/1N4Q1/bkR2K2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 e4 f5 exf5 b5 a4 d5 axb5 Qd7 c4 Qd6 cxd5 Qd8 d4 Kf7 f4 Kf6 h4 c5 d6 e5 h5 e4 h6 e3 h7 g6 a6 g3 d5 e2 d7 c4 a7 c3 d6 c2 Nh3 Nc6 Nd2 Bg7 Nc4 Ne5 Nb2 Ne7 Qd5 Rg8 h8Q Qb6 d8N Qd4 d7 Qc4 Nc6 Nf7 d8Q Ba6 Qb8 Qe4 Ng5 Rd8 Rh7 Qa4 Qg2 Nd5 Ne7 Nc3 Bd2 Qd4 Rc1 Na4 Ba5 Nd6 Bc7 Bc8 Qgb7 Bd7 Bg2 Qc4 Bd5 Qe4 Bb3 Nc5 Ba4 Be6 Qf8+ Nf7 Qh8 Rd5 Qhd8 Na6 Qd6 Bh8 Qc5 Nd6 Rg7 Ne8 Rh7 Qe3 Rg7 Rd6 Qg2 Bb3 Qbb7 Rc8 a8Q Rd5 Qab8 Qe6 Rg8 Qe4 Nh7+ Kf7 f6 Ke6 f7 g5 f8Q Be5 Ra1 c1B Rg7 Bf6 Ng8 Kf5 Re7 Rd8 Nd1 Ba3 Rc1 Rc8 Qg7 Ba1 Nb2 Rd8 Q8a7 Ra8 Qab8 Nb4 Qh2 Na6 Qf6+ Kg4 f5 Kf3 Qcc6 Ke3 Qg2 Qe6 Qf8 Qe4 f6 Kd4 f7 Ke3 Qfh6 Kd4 f8R Ke3 Qhe6 Kd4 Kd2 e1N Rf4 Nd3 Qc2 Ne5 Kd1 Ke3+ Ke1 Nd3+ Kf1 Kd4 Qh1 Ke3 Qcc6 Kd2 Qf6 Nac5 Rd1+ Kc2 Qcb6 Na6 Q6a7 Nc1 Qc5+ Kb1 Qf3 Qe3 Qg2 Qe4 Rd4 Nd3 Rc4 Bc2 Rc3 Bb3 Rc1+
N2q2n1/bk2n1KQ/1b1rQB2/1pP2b1R/1pBN2R1/n2Q4/2Q1r3/1RN4Q b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 Ke2 Kd7 Kf3 Kc7 Ke4 b5 Ke5 g5 a4 e6 f4 g4 h4 g3 f6 g2 a5 Ne7 a6 Ng8 a7 Na6 d6+ Kb7 h6 Kc6 f5 Qe7 f7 Nb8 f6 Qd8 d7 Kc7 h5 Ba6 h7 Be7 f8Q Bb7 f7 Bg5 h6 Qe7 d8Q+ Kc6 Q8d3 Qd7 Ne2 g1B Qe8 Bc8 f8R Bh2+ Rf4 Bd8 Nd2 Bb6 Nb3 Kb7 Ned4 Qd8 Rb1 Bd7 Bb2 Nc6+ Ke4 e5 Nc1 Be6 Q1c2 Nce7 Rg4 Bg3 Rh5 Bf5+ Ke3 Rc8 a8N e4 Qd7+ Bgc7 Qe6 Ba7 Ba1 Bcb6 Kf4 e3 Ke5 e2 Bb2 Nf6 Bc3 Re8 h8Q e1N h7 Rb8 Qhg8 Rc8 h8Q Rc6 Qgh7 Ng8 Be2 Rd6 Bf1 Nh6 Kf6 Ng8+ Kg7 Kb8 Qcd2 Nc2 Be2 Na3 Q3c2 Nc8 Bc4 Kb7 Qdd3 Nce7 Nde2 Rf8 Bf6 Re8 Nd4 Nc6 Qd5 Re3 Qe6 Re2 Qh6 Nce7 Q8h7 Nc8 Qg5 Nce7 Qh4 Re1 Qhh3 Re2 Qh1+
2n1k3/3NbNR1/1qPbb3/1r1p4/RrQ5/1pN3N1/n3B1B1/1K1nNQRQ b - - 0 1 legal: proof: d4 a5 g4 g5 b4 f5 bxa5 c5 dxc5 h6 f4 Qb6 e4 Rh7 exf5 Na6 fxg5 Nb4 g6 Na6 g5 Rh8 g7 Qd8 g6 Nb8 Bg5 hxg5 Kd2 b5 Kc1 e5 a4 b4 c4 d6 h4 g4 f6 g3 c6 e4 c5 e3 f7+ Ke7 a6 b3 a7 e2 a5 e1N h5 g2 a6 Qa5 c7 Bg4 c8N+ Kd7 h6 Qa2 h7 Be7 f8N+ Kd8 Be2 Nc2 Qf1 Ke8 Nf3 g1B Nc3 Bd4 Ne1 Na3 Nd7 Nb5 Rg1 Qa3+ Kb1 Be5 Ra2 Qa5 Ra4 Bd8 Ne7 Be6 Nf5 Qb6 Ng3 Ne7 g8N Nbc6 g7 Nc8 Nh6 Rf8 h8Q Rb8 g8R Be7 a8Q Nb4 a7 Na2 Rg7 Bf4 Qh7 Rf5 Qh1 Rg5 a8B Rg4 Be4 d5 c6 Bfd6 Bg2 Rb4 Nf7 Rb7 Qc2 Rb8 Nce4 Nbc3+ Ka1 Nd1 Qc4 Qa5 Kb1 R8b5 Nc3 Qc7 Nce4 Qb6 Nc3
R2nk3/QB4QP/1BN2r2/Kb3p1R/2NN4/1Rr1n3/n1p2rQ1/Nb3Nq1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Bc5 f4 exf4 axb5 a4 Bg2 Bb6 Bf1 Ba5 bxa5 Rh7 Nc3 Rh6 Nb1 Rh8 h4 f5 e4 g5 d4 c5 Kd2 c4 Kc3 g4 Kb4 f3 d6 a3 d7+ Ke7 e5 g3 a6 g2 b6 a2 b7 c3 h6 c2 d5 f2 h7 Kf8 d6 Kf7 h5 Qc7 d8N+ Kf8 e6 Qe7 h6 Qf7 a7 Na6+ Ka5 Qg6 b8R Qg4 d7 Qe4 Nb7 Nf6 d8N Nc5 e7+ Ke8 Qg4 Ng8 Nc6 Ne6 Nc5 Qd4 Rh5 Nd8 Nd2 Nf6 Rb3 Nd5 Ba6 f1B Ne2 g1R Bb7 Ne3 Qg2 Rf8 h8Q Be6 h7 Rc8 Qhg7 Rf6 a8Q Rh1 Qa6 Rh2 Qa7 Qg4 Ned4 Bb5 Nf1 Bg8 Rab1 a1N Ra3 Ba2 Ncb3 Qg3 Ra4 Qg4 Ba3 Qg3 Bc5 Qf2 Bb6 Qg1 Q2g5 Rf2 Qg2 Kd7 Rb2 Bb1 e8N+ Rf7 Q7g3 Rf6 Nd6 Rc7 Nc4 Ke8 Qg7 Rc8 Nc5 Nb3+ Kb4 Nd2 Ka5 Ne4 Ncb3 Nc3 Na1 Na2 Rb3 Rd2 Ne7 Rc5 Nec6 Rf2 Ncd2 Rc3 Nc4 Rf7 Raa3 Rf6 Qa6 Nc1 Kb4 Rf3 Qa8 Rf4 Qb8 Rf3 Ra8 Na2+ Ka5 Rf2 Qa7
1b1nN1bQ/3KBnp1/4p2Q/Q2RB3/r1P3R1/k1R3R1/1R2N3/1Bbn1q1r b - - 0 1 illegal: No possible last move
qk1r4/1BQ4Q/2qQ1Nn1/5Bn1/RN1PR1BQ/3pp1Qb/r1R1q3/1Kb5 b - - 0 1 illegal: No possible last move, all moves rejected
1Q2RnNR/N1bqB1r1/1R3r1Q/8/kp2Rrn1/2P1b1p1/1KN2qBR/6B1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 b5 dxc5 f5 e4 Ba6 exf5 axb4 a4 b3 Nf3 b4 Ng1 Bb5 axb5 Qa5 Qf3 Qb6 Qd1 Qd8 Kd2 e5 f4 d5 h4 Kd7 b6 Kc6 c3 g5 f6 b2 Kc2 e4 f7 d4 f5 g4 f6 e3 b7 e2 h6 Kb5 h7 g3 h5 Ra3 h6 Ra2 c6 Ka4 c7 e1B c8N Qd5 Ne2 Qd7 Nf4 Bf2 Qd2 Qh3 Nh5 Bg7 f8R Qe6 f7 Nd7 b8Q Ka5 Rh2 Qe2 Na3 Ngf6 Re8 Rg8 Re4 Nf8 Bg2 Ng4 Na7 Be5 Nf6 d3+ Kb1 Rg5 Ng8 Bc7 Qf4 Bd4 Be3 d2 Bg1 Be3 Kc2 d1R+ Kb3 Rf1 h8B Ne6 Bf6 Rg7 f8R Rf2 Re8 Nf8 h7 Qb5 h8R Qd7 Qh6 b1Q+ Kc4 Qb2 Be7 Rf6 Rd1 Ka4 Rd6 Ra1 Rb6 Qbd2 Nc2 Raf1 Bc5 R1f4 Be7 Ka5 Kb3 Qf2 Ka2 Ka4 Kb2
r3n1B1/3r1qR1/1p1nB2B/5Q1R/1Pq1NKp1/1b5k/1RbB1Q1N/N1B3b1 b - - 0 1 legal: proof: e4 d5 g4 c5 d4 f5 exf5 h5 gxh5 a5 c4 cxd4 cxd5 a4 Qxa4+ Nd7 Qa7 Nb8 Ke2 Kf7 Kf3 Kf6 a4 g5 b4 e5 h4 d3 h6 d2 d6 Rh7 a5 Rh8 d7 Be7 a6 Rh7 h5 Bf8 Na3 Re7 h7 Qb6 h8N Qd4 d8R Qb2 h6 Rh7 Rd7 Be7 Bh3 Qc2 Rb1 Qb2 Nc2 Qa2 Nf7 Bd8 Na1 Qc4 Rb2 Ba5 Nd6 Nc6 Rg7 Qf7 Ne4+ Ke7 f6+ Kf8 Kg3 d1B f4 Bb3 f5 Nce7 Nf3 Bb6 Nh2 Bg1 Qf2 b6 a7 Bb7 Kf3 Nc8 Kg4 Qc4 f7 Ke7 f6+ Ke6 f8Q Nd6 f7 Bc6 Bd2 Bca4 Bc1 Nf6+ Kf3+ Nf5 Q8c5 Bc2 f8B Ne8 Kg4 Nfd6 Bd2 Rd8 a8B Bab3 Bc1 Rh8 h7 Rd7 Bb7 Rg8 Bc8 Rh8 Bf1 Rg8 Kf3 Kf5 h8B Qe6 Bc4 Qf7 Rh7 g4+ Kg3+ Kg6 Bfh6 Kh5 Bf6 Rh8 Bfg5 Rg8 Bgd2 Rf8 Ng5 e4 Rg7 e3 Qcf5 e2 Kf4 e1Q Be6 Qd1 Ba6 Qe2 Bac4 Qg6 Bg8 Qf7 Be6 Qb5 Qe2 Kh4 Ne4 Qd5 Qf2+ Kh3 Qe3+ Kg2 Nf1 Nc7 Rh5 Qc4 Rhg5 Ra8 Qf2+ Kh3 Nh2 Nce8 Rh5+
2N1n1N1/n1b2q1k/BQQNnb2/3B2pr/R2nKQ2/p4R2/P1r5/3R1R1R b - - 0 1 legal: proof: c4 d5 cxd5 c5 f4 f5 b4 c4 e4 c3 exf5 h6 g4 c2 g5 Kd7 f6 Qc7 f5 Qc5 bxc5 Na6 Bb2 Nb8 Bd4 c1Q Be3 Qb2 Bf4 Qb6 g6 Qd8 Bg5 hxg5 Qe2 Ke8 Qh5 Be6 Qd1 Bf7 gxf7+ Kd7 Kf2 b5 Ke3 a5 h4 e5 d4 g4 d6 g5 h5 g3 d5 a4 h6 a3 h7 e4 c6+ Kc8 d7+ Kc7 d6+ Kb6 c7 Kc6 c8B b4 Qa4+ Kd5 Nh3 Ke5 Nc3 b3 Bg2 b2 Ba6 b1N Nb5 Be7 f8N Nc3 f7 Kf6 Nf4 Kg7 Nh5+ Kh6 f6 Qc7 d8Q Nc6 d7 Na7 Nd6 Ne2 Qc6 Nf4 Raf1 Rc8 Ng6 Ne6 f8R Qb7 f7 Bf6 Bf3 g2 Qdb6 g1N d8R Ne2 Ne7 N2d4 Rd7 Rc7 Ra8 Rc8 f8R Rc7 Nec8 Kg6 Kd2 e3+ Kd3 e2 Bd5 e1B Ke4 Bg3 Rf3 Nh6 Rdd8 Nhf5 Rd7 Nfg7 Rff1 Bd8 Nf6 Ne8 Ng8 Bh2 R8f3 Bf6 Qc1 Rc6 Qf4 Rc2 Nc4 Ndc6 Qg4 Nf8 Bb5 Bd4 Be6 Bb8 Rd5 Qf7 Qf4 Bc7 Rd6 Be5 Rdd1 Nd4 Bd5+ Nac6 Ra4 Kg7 Ba6 Na7 Nh6 Bf6 Ng8 Bfd8 Qfd6 Bf6 Qdc6 Nfe6 N4d6 Kg6 Nh6 Rg8 h8Q Rg7 Ng8 Rh7 Qa5 Rhh2 Qh4 Rh3 Qg3 Rh5 Qf4 Kh7 Qab6
q3R2B/2B4B/nqpb2nK/q3Q1P1/3R1bQk/B2Br3/1N1nN2p/R4N2 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qb3 a5 Qc2 Bf5 gxf5 g4 Qb3 g3 Qd1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qd7 Qa4 Qc8 Qd1 Qd8 d4 Kf7 Kd2 Kf6 b4 Kg5 e4 h5 d6 a4 d5 g2 e5 h4 d7 c6 b6 f2 e6 f3 Ke3 a3 b7 h3 b5 a2 b6 h2 d6 Rh6 e7 Qc7 e8B Rh5 d8N Rh3 d7 Rh6 f6 Na6 b8Q Ne7 f7 Nc8 b7 Nc5 Ne6+ Kh4 d8R Na6 Ne2 g1B N6f4 Rh7 Nd3 Be7 f8B Qb6+ Kf4 Na7 Qe5 Qc5 b8B Qa5 Bg7 Nc8 Bc7 Bd6 Ba3 Ne7 Nd2 Ng6+ Kf5 Qb6 Bh8 Re7 g5 Re6 Nb2 Re7 Qf6 Re3 Qe5 Qa5 Kf6 Qb6 Kg7 Qa5 Rc1 a1Q Kh6 Qa2 Ra1 Qb1 Bh3 f1N Bf5 f2 Bd3 Qa2 Bd7 Qb3 B7f5 Qbb6 Ndc4 Nd2 Re8 f1Q Qa4 Nf8 Bh7 Ng6 Rd1 Qf5 Ra1 Bf2 Rhd1 Bg3 Qb4 Bf4 Qa4 Ne4 Nd2 Qc8 Nf1 Qd8 Bc2 Qa8 Rd4 Nd2 Bd3 Bc5 Qc4 Be7 Qce6 Bd6 Qg4+
4Q2q/1B4PN/q3nrp1/2r2B2/2q1QNNR/1p1bK1k1/1Q1Q2rb/1RB2Q2 b - - 0 1 legal: proof: g4 d5 f4 a5 c4 h5 cxd5 f5 gxh5 g6 e4 Ra7 exf5 Nd7 b4 axb4 f6 Ra8 f5 Nc5 f7+ Kd7 f6 Ne6 Ba3 Ra4 Bc1 Ng7 fxg7 Ra8 Ke2 Kd6 d4 c5 a4 b5 h4 e5 a5 b3 h6 e4 a6 b2 h5 e3 h7 b4 h6 b3 a7 c4 Nd2 b1Q Nh3 c3 Nf3 c2 Nf4 Qf6 Bh3 Bd7 Qf1 Be8 Ne5 Ba4 Bf5 Rc8 a8B Rc5 Bb7 Ne7 Ng4 Nc6 Rh4 Nd8 Kf3 e2 Ke3 Rg8 h8Q Ne6 h7 Be7 f8N e1R+ Kd3 Qa2 Rb1 Bb5+ Kd2 Rd1+ Ke3 Qa6 Qc4 Bd8 Qf1 Ke7 d6+ Kf7 d7 Bd3 d5 Rd2 d6 Bc7 d8Q Rg2 Rh2 Qh4 Qa8 Qd8 d7 Qc8 Ne5+ Kf6 Rh4 Kg5 Ng4 Qd8 Qc8 Bd6 Qc6 Bb8 Qe4 Bc7 Nd5 Bh2 Nf4 Qe8 Bd2 c1Q d8Q+ Qe7 Qdd5 Qcc4 Bc1 Qd8 Qde5 Qc8 Qb2 Qe8 Nd7 Qc8 Ndf6 Rf8 Qg8 Qb8 h8Q Rf7 Qd8 Qba8 Nd7+ Rf6 Qhe8 Qb8 Nf8 Qc8 Rh8 Qb8 Nh7+ Kh4 Qa5 Kg3 Qad2 Qc8 Nf8 Qb8 Rh4 Qba8 Nh7 Qc8 Qb5 Qh8 Qe8
4N2R/q3P1Rn/2npQ1RB/b1kb3R/QRB2qb1/6rn/p2N2BK/2N5 b - - 0 1 legal: proof: d4 b5 f4 c5 h4 cxd4 a4 a5 axb5 e5 fxe5 g5 g4 f5 gxf5 g4 Ra4 Ra6 Ra3 Rg6 Ra1 Rg5 hxg5 Ba3 Rh4 Be7 Rh1 Bf8 Kf2 Ke7 Kg2 h5 c4 a4 e4 d3 b4 h4 c5 g3 b6 a3 e6 d6 g6 a2 e5 d2 c6 Qd7 c7 Ba6 c8Q Bc4 g7 Rh6 b5 Rh8 b7 Qc7 b6 Rh6 Ne2 Qd8 f6+ Ke8 e7 Rg6 Qe6 Qc7 Qa4+ Nc6 Rh2 d1B Bh6 Rg4 Nd2 h3+ Kh1 Qd7 Nc1 Bd5+ Bg2 Rg6 Rb1 Bg4 Rb4 Qc7 Qf5 Kf7 e8N Be7 b8R Qa7 b7 Bd8 Qe4 Ke6 f7 Ba5 f8R Nf6 g8B+ Kd7 Rf7+ Ke6 Ra8 Nh7 b8R Rg7 Rf6+ Kd7 Bf7 Rg8 Rg6 Rg7 Bf3 Rg8 Rg2 h2 R8b5 Rg7 Rg1 Rg8 Kg2 h1N Rg7 Nf2 Rc5 Nh3 e6+ Ke7 Rg6 Rg7 Kh1 g2+ Kh2 Rg8 Nf6 Rg7 Rh8 Rg8 Rcb5 Kd8 e7+ Kc7 Qe6 Qd4 Rc5 Qe4 Rd4 Kb6 Ne8 Rg7 Rcc4 Qe3 Rb4+ Kc5 Rf4 Qe4 Rff6 Rg8 Rg7 Qe3 Rh1 Qe4 Rfg6 Qc4 Kg3 g1Q+ Bg2 Qe3+ Kh2 Qa6 Rf1 Qa7 Rf5 Qd4 Rh5 Qf4+ Kh1 Rf8 Bg8 Rf5 Bf7 Re5 Bg8 Re3 Bf7 Rg3 Kh2 Qd7 Bg8 Qa7 Qd7 Be6 Bg5 Bf3 Bh6+ Bf5 Bc4 Bd5 Qc8 Bg4 Qe6
6KN/b2np3/Q1qr4/BBN2Rp1/QBB4r/2q1PR2/3b2rk/QB1b1N2 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 f6 a4 Bg7 axb5 Bf8 h4 Qd6 g4 Qb4 g6 Be6 g7 Qd6 g5 Qd8 h5 Nc6 Bg2 Ne5 Bf1 Ng6 hxg6 fxg5 Ra4 Bh3 Ra1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 h5 b4 c5 b6 a4 e3 c4 b7 c3 b8Q+ Qc7 b5 h4 b6 c2 b7 h3 Ba3+ Kd7 Kf5 c1B d6 h2 d5 Qc3 Bb5+ Qc6 Nd2 Rh4 Nb3 Rg4 Nc5+ Ke8+ d7+ Kd8 Qe5 Rg2 b8Q Ra6 Qa8 Re2 Bb4 a3 Qa4 Rg2 Ne2 a2 Ng3 Qd6 Rf1 Kc7 Rf3 Rc6 Q8a6 Nf6 g8B h1R g7 Rh4 Kg6 Bd2 d8N Bg4 Kf7 Nd7 Raf1 a1Q Bh7 Qc3 g8B Bg7 Bb1 Rb6 Rf5 Bd1 R1f3 Bh8 Qd4 Qc6 Qa1 Be5 Qc4 Bd4 d6+ Kb8 Q6a4 Kc8 Qe6 Ra6 Qf6 Rb6 Kg7 Ra6 Bgc4 Rb6 Nf7 Ra6 Ne6 Ba7 Nh8 Nb6 Nf8 Qc5 d7+ Kd8 Kg8 Kc7 Ne6+ Kd6 d8B Nd7 Nf1 Rb6 Qh6 Rc6 Rh3 Rb6 Rf8 Ke5 Rg3 Rc6 Bda5 Qb6 Nc5 Rf6 Ne4 Kf5 Rf3+ Kg4 Nfg3 Kh3 Nc5 Kh2 Qg6 Rc6 R8f5 Qc7 Qf6 Ra6 Qc6 Qb7 Qc8 Rd6 Qc6 Qc7 Qa6 Qc6 Nf1+
1NB2qQB/1n1P1NQ1/1b2p2q/1Q2rB2/3R3b/3nBbNp/KR3k2/4qB2 b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 h5 g7 c4+ Ka2 h4 b4 f3 g6 c3 f6 f2 f7 c2 b6 h3 b7 a4 b5 a3 b6 Qe8 Nd2 Qd7 Ne2 Rh6 Ng3 Rh7 Rh2 Rh4 Nf3 Nh6 g8B Qb5 g7 Ng4 Qd3 Nc6 b8N Na5 b7 Be6 Bd2 c1Q Ng5 Qe8 Qb5 Ne5 Bh7 Rh5 g8B Bg4 Bf5 Bf3 Rg2 Qcc6 Rd1 Nd3 Bgh7 Bh6 Bc8 Qf8 Bhf5 Bg7 Rh2 Bf6 Rg2 e6 Rh2 Qh6 f8Q+ Be7 Qg7 Qe8 Rg2 Qf8 Rh2 Bd8 Rg2 Bb6 Nf7+ Ke7 Qg8 Kf6 d6 Rg5 d5 Rh5 d7 Rg5 Nd6 Ke5 d8Q Kd4 Nf7 Rh5 d6 Rg5 Be2 f1Q d7 Qe1 Qe7 Rh5 Bf1 Rg5 Bc3+ Ke3 Rb2 Rh5 Bd2+ Kf2 Qf6 Rg5 Qfg7 Rh5 Na6 Rg5 b8B Nb7 Be5 Rh5 Kb3 a2 Nb8 a1B Ka2 Rg5 Qg6 Rh5 Bh8 Rg5 Q6g7 Rh5 Rb4 Bf6 Rd4 Bfd8 Rb1 Bh4 Rb2 Rg5 Bg6 Rd5 Bf5 Re5 Be3+
r4nRK/p2r2QN/R2R1BR1/Q1q4B/P1b5/kR3Q1n/nqr2p2/4B1N1 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 e4 g6 f4 Qc7 e6 Bd6 e5 Kd8 f5 Be7 f6 Qa5+ Nc3 Kc7 fxe7 Qb6 Nb1 Kc6 Ke2 Qc7 Ke1 Qd8 Ke2 Kb5 Kd3 Kb4 Kd4 b5 e8Q d5 h4 f5 c4 g5 c6 g3 c7 g2 c5 g4 e7 f4 h5 g3 e6 f3 Ke5 d4 c6 f2 h6 d3 h7 d2 Be2 Na6 Qh5 Qd3 e8Q Qa3 e7 Qa5 Qd7 Qa3 e8R Rb8 Re6 Ne7 Kf6 Bb7 Kg7 Rhd8 h8B Ng6 c8R Nf8 c7 Ra8 Nc3 Bd5 Rd6 Bc4 Ne4 Qa5 Qe7 Rd7 Ng5 Qb6 Qf3 Qc5 Qe1 Ka4 a3 d1Q Rhh6 b4 Nh7 b3 Bd2 b2 Rhg6 b1Q Rb8 Qbb6 c8R Qdb3 Qef7 Qb2+ Kg8 Q6b4 Bf6 Q4b3 Kh8 Nb4 Qg7 Na2 Rc7 Ne6 Rg8 Nf8 Nh3 g1N Bd1 Ne2 Ng1 Nf4 Qe5 g2 Be1 Nh3 Rcc6 Rb7 Rc1 Rd7 Rc3 Ka5 a4 Kb4 Ra6 Ka3 Ne2 g1R Qef5 Rg5 Ng1 Qe3 Qa5 Qc5 Qg2 Re5 Bh5 Re2 Qf3 Rc2 Rxb3+
2qN1B2/p1k1B2K/3Q2pn/RQ1R4/5bPN/BrR1R3/1q2brQ1/b1R4r b - - 0 1 illegal: No possible last move
n2r1bB1/bR4rb/PpNQp2K/Q2R1NN1/6Q1/4n2N/2RBNn2/k5r1 b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra4 f4 Qd6 fxg5 Kd8 h4 Ra8 h5 Nf6 g6 Qf4 g5 Ng8 h6 Ke8 Bg2 Qd4 Bf1 Qg7 hxg7 Ra4 Ke2 Ra3 Ke1 Ra8 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kd6 a4 h5 f6 c5 f7 b3 a5 c4 a6 b2 Ra2 c3 Nh3 h4 Bd2 b6 Bc4 c2 Nc3 b1N Ne2 c1B Rc2 Nh6 g8N Na3 g7 Nd7 g6 Nc5 Kg5 Nf5 Nh6 Ra7 g8Q Ne3 g7 Nb5 Ba2 Nd3 Nf5+ Kd7 d6 Nc7 d5 Nf2 Qh7 Na8 g8Q Bb2 Qh5 Be5 Qg7 Rg8 Kh6 e6 Bb1 Bb7 Qg4 Bh2 Qb4 Bc6 Qa5 Rb7 Rg1 Rb8 Rg4 Rd8 Rgc4 Ba4 Rc8 Bb5 Rb8 Bd3 Rb7+ Nc7 Nfg3 Bh7 Nf5 Be5 Kh5 Bg3 Qg4 Rg7 Kh6 Be7 Nhg1 h3 f8R h2 Nh3 h1R Rg8 Rf7 Rg5 Rg7 Rh5 Bf8 Rg5 Ke8 d7+ Kf7 d6 Kf6 Rh5 Na8 Rg5 Rc8 d8N Rg1 d7 Bb8 Nf7 Ba7 d8N Rb8 Rh5 Rc8 Nfg5 Rb8 Qa3 Ke5 Nc6+ Kd5 Rb2 Rd8 Qa5+ Bc5 Be4+ Kc4 Rc2+ Kb3 Bc1 Bf8 Qd6 Re8 Bd2 Rd8 Nh4 Ng2 Bg6 Ne3 Bf7 Rg2 Nf5 Rg1 Rc4 Kb2 Bg8 Kb1 Rc2 Nd5 Nf7 Re8 Nfg3 Ne3 Rd5 Rc8 Nfg5 Rd8 Qb5+ Ka1 Nf5 Rh1 Qbc5 Rg1 Qa5+
1k1K1nb1/2Nb1B1N/B1rp1R1b/B7/3brB2/Qq1R4/p1PB1Q1b/3Q1R2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 a4 Nc6 axb5 a4 Be2 Ra6 Bf1 Na5 bxa5 Ra8 Ra3 g5 Kd2 e5 Kd3 e4+ Kc4 e3 Kd5 g4 f4 e2 h4 e1B b6 g3 b7 g2 b8B Beb4 f6 Bbc5 f5 Ra7 h6 Bb4 f7+ Ke7 a6 Rc7 a7 Ba5 a8B Ra7 h7 Bb6 h5 Nh6 Ba6 Qe8 f6+ Kd8 Bd2 Rc7 Nh3 g1B Nc3 Bbc5 Nb5 Ng4 Ng5 Bh2 h6 Qe3 Ba5 Qh3 Rf1 Ne5 Bc6 Rg8 h8R Ng6 h7 Bh6 f8B Bb7 f7 Kc8 Rg3 Bb6 Bfb4 a3 Kd6 a2 Bd5 Re8 Rf8 Ba7 h8Q d3 Qda1 d2 Qhd4 d1B Nh7 Be2 Bd2 Bg4 Qf2 Bd4 Qd1 Rc4 Rh8 Rc7 f8Q Bf5 Qe7 Rc4 Rg8 Nf8 Rg6 Bg4 Qee3 Re4 Qa3 Be6 Ke7 Bg8+ Be5 d6 Nc7 Kb8 Kd8 Bc6 Bf7 Bd7 Rf6 Rc6 Bef4 Qe6 Rc3 Qb3 Rd3
QBB3K1/2RrQrp1/3B2r1/nRp1b3/4B2r/3bN2B/NqR3P1/r3Q1k1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e5 a4 exf4 b4 b5 axb5 h5 Qc2 a4 Qh7 h4 Qxh4 Nc6 Qh7 Na5 bxa5 Bb7 Ra3 Ba6 Ra1 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 e4 f3 d4+ Kb4 h4 c5 d6 a3 a6 a2 d5 f2 a7 f4 d7 f3 Ke6 Qb6+ Kf7 Ne7 d8Q Bg4 h5 Nc6 d6 Bh3 d7 Rc8 a8B Qa5 e5 Qa3 e6 Nb8 b6 Bf5 e7 Qa4 e8B Na6 b7 Rb8 h6 Qc6 Bf4 Bg4 Nc3 Qc7 Qe4+ Kb3 h7 Qe5 Nd5 Qb2 Bd6 Bf5 Ne2 Nb4 Ne3 Nc6 Nc3 Na5 Qde7 Rd8 Rc1 a1R Ba6 f1R b8B f2 Na2 Rd1 B6b7 f1R Rc2 Rde1 Q4h4 Bd3+ Qf2 Red1 Bc8 Rdb1 Be4 Rbe1 Qg5 Be7 Qe5 Bf6 Qe7 Be5 Rh3 Red1 Rf3 Rd2 Qe1 Rdf2 Rf6 Rh1 Rf3 Rh6 Rf6 Rg6 Rf3 Rg8 h8R Rf1 Rh3 Rh8 Rf4 Rh4 Kg8 Ka4 Rf8 Kb5 Bf7 Rff4 Be6 Rf5 Rg3 Rf7 Bh3 Re8 Qf6 Ree7 d8Q Rd7 Qfe7 Bc3 Nf5 Kc4 Ne3+ Kd4 Qde8 Rc7 Qc6 Rd7 Qa8 Bd2 Nd1 Bf4 Ne3 Be5 Rf3 Qb3 Rff2 Qc3 Rb2 Qa3 Rb5 Qb2 Re8 Bg3 Nf1 Rf5 Ba6 Be5 Rc8 Rff6 Rc7 Rf7 Qd1 Bf6 Rc2 Be5 Nh2 Ke3 Bc8 Be2 Nf1+ Kf2 Qc1 Kg1 Qe1 Bd3 Ne3+
1n1N2B1/1n1NQB2/2r1pn1B/R1R1K3/b6r/4RNpR/P4QRq/3k2rr b - - 0 1 legal: proof: c4 c5 e4 d5 cxd5 f5 exf5 a5 d4 h5 g4 e6 gxh5 c4 b4 Bc5 dxc5 axb4 Ke2 Kd7 Kf3 b5 Ke4 g5 f4 g4 h4 g3 d6 Kc6 f6 c3 f7 b3 f8Q b4 f5 c2 d7 b2 h6 b3 h7 Qe7 d8N+ Kc7 f6 Nh6 h5 Nf7 h6 Qd7 c6 Kb6 c7 Ka5 Rh3 Ka4 Qe1 Qe8 Nc3+ Ka5 Nd5+ Ka4 Qf2 b1R Nf3 b2 Bd3 Rg8 h8R Qb5 h7 Qc6 Qe7 Nd6+ Ke5 Ka3 f7 Ra4 f8R Bd7 c8B Rh4 Bh6 c1R Nb6 Rh1 Rf5 Rbg1 Re1 b1N Re3 Nd2 Rh2 Kb2 Rg2 Be8 Nd7 Kc1 Bca6 Rg5 Bab5 Nb7 Rg8 Rg7 h8R Ne4 Rh5 Nf6 Bh7 Rgg4 Rgg5 Kd1 Bg8 Qc2 Bd3 Rd4 Bg6 Rc4 B6f7 Rc7 Rg4 Qh7 Ra4 Rc6 Ra5 Rc1 Nf8 Ba4 Nd7 Rc6 Rc5 Rb4 Rh3 Rh4 Ra5 Qc2 Rh7 Qe2 Rg7 Qd2 Rg5 Rcc4 Qe1+ Kc2 Rf2 Rcf4 Rg4 Rc4 Rge4 Rc3 Rc4 Qe2 Rfh2 Qg2 Qf2+ Kd1 Rg4 Rc6 Rc4 Re1 Rc3 Qg1 Rg2 Qh2 Rc2 Reg1 Rcc5
rR1N1KNB/4r1rP/3BNQ2/1Qpr1pB1/Q3k2B/1qn5/2n5/R1Bb1n2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 d5 c4 Kf7 cxd5 Bb4 g5 Ke8 Bh3 Be7 Bg4 Bf6 gxf6 hxg4 Kf2 Kd7 Ke3 c5 Kf4 a5 Kg5 g3 Kg6 g2 Kf7 g5 d4 a4 b4 g4 e4 g3 h4 a3 b6 a2 b5 Ra4 b7 Nc6 b8B Ra5 b6 Rh6 d6 Bb7 h5 Na7 d5 Ra6 e6+ Kc8 e5 Qd7+ e7 Bc6 e6 Kb7 Nf3 g1R Qa4 g2 Nd4 Qc7 d7 Qe5 d8B Qh2 e8Q Qg3 d6 Qa3 d7 Be4 e7 Ra5 Nd2 Nc8 Qf8 Qb4 e8Q Nge7 Ne6 Na7 Bg3 Qb3 Bh4 Bf3 Ne4 Nd5 Qb5 Rh8 h6 Rd1 h7 g1R Be7 Ne3 d8N+ Ka8 Rh3 Nf1 b7+ Kb8 Rg3 Rd5 Rg8 Bd1 Qh6 Rg4 Kf8 Rg7 f7 Ra6 Qa4 Nb5 Nf6 Nc3 Qeb5 Ka7 b8B+ Ka8 Rb1 a1N Be5 Nc2 Ra1 Ra7 B7d6 Ra6 Bd4 Ra7 Bdf4 Qb1 Bfg5 Qb3 Qc6+ Kb8 Qcb5+ Kc8 Be5 Re7 Nb7 Red7 Ke8 Rd4 Bd6 Rg6 f8B Rd3 Nc7 Kb8 Bg7 Re7+ Kd8 Rd2 Rf8 Rg8 Bh8 R6g7 Re8 Rf8 Ng8 Rd4 Qf6 Rd3 Na5+ Ka7 Ne6 Rd2 Qbc4 Kb6 Nb7 Rd3 Qa2 Kc6 Qb5+ Kd5 Qaa4 Ref7 Na5 Ra7 Nc6 Rff7 Rf8 Ra5 Ke8 Ra8+ Ncd8 Rb7 Rf7 Rd4 Rc7 Ke4 Rc8 Rbd7 Kf8 Rde7 Qa2 Rd3 Rb8 Rd5 Qaa4+
2b1B3/BPN3bk/r1p1B1r1/b1r2r2/4NqnQ/QN5K/p2RQ1BR/B7 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Kf2 e5 Kg2 h5 d4 a5 b4 e4 b6 a4 b5 a3 f6 e3 g7 Kf7 b7 Kg6 b8B c6 d6 e2 d5 e1B f7 h4 d7 a2 b6 f3+ Kh3 f2 b7 Qe8 d6 Rh6 Nc3 Qe4 Rh2 Qe5 Qe2 Qe3+ Nf3 Nf6 g8B Nd5 Bg2 f1R Ba7 Qe4 Nd2 Nb6 Bb2 Kg7 g6 Nc4 Nb3 Ne3 Rd1 Qe5 Ne4 Ba5 Ba1 Nf5 d8Q Ne3+ d7 Ng4 Rd2 Rf5 Qg5 Kh8 d8N Bg7 f8Q Qf4 Qa3 Rc5 Bc4 Rh5 Qf6 Rhf5 Ne6 Kg8 Nc7+ Kh8 Bb8 Ra7 Bf7 Ra6 Be8 Kg8 Ba7 Kh8 Bf1 Kg8 Kg2 h3+ Kh1 Bh8 g7 Ne5 Rf2 h2 Kg2 h1R Qh4 Rg1+ Kh3 Rg6 Rh2 Ng4 Bg2 Rc2 Qhe1 Rcc5 Q1f2 Kh7 g8B+ Kh6 Be6 Kh7 Qg3 Bg7 Qh4+
1Rq4q/b5Q1/1r1p2k1/Q1b1qRNr/1pq1B1RB/B5BP/1Q1B2N1/K5n1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 g4 c5 gxh5 b5 d3 b4 d4 Ba6 Nd2 Bb5 Nb1 a4 b3 Na6 cxb5 axb3 Kd2 c4 Ke1 Nc5 dxc5 Ra6 Qd6 Ra5 Qd1 Ra8 Kd2 Kf7 a4 e5 f4 g5 h3 e4 b6 g4 c6 b2 Kc2 e3 b7 g3 b8B c3 f6 g2 a5 e2 h6 e1B f5 Qe7 a6 Qe2+ Nd2 Qb5 Kb1 Qb6 c7 Bg3 c8R Ne7 a7 Nc6 h7 Qb5 Ne4 Qc4 Qb3 Bh4 Bd2 Bf2 Ne2 g1Q Bg3 d6 Rb8 Be3 Ra5 Qf2 Nf4 Bb6 Ng2 Qd4 Bd3 Qe3 Rg1 c2+ Ka2 Rg8 h8B c1Q Bg7 Rh8 Ng5+ Kg8 Bb1 Bc5 Be4 Ne5 Bh6 Rh7 f7+ Kh8 f6 Nf3 Rab5 Q1c3 Kb1 Qe5 Qa2 Qee6 Qa1 Qc8 Bc1 Bg7 f8B Qec3 f7 Bgd4 Be7 Bf2 Bd8 Qg7 f8Q+ Qgg8 R8b7 Rb8 a8Q Ba7 Rf7 Bfc5 Rf5 Rb6 Qf6+ Qg7 Qa5 Kg8 Qb7 Qe7 Bd2 Qe5 Bg7 Rh5 Qd7 Rc6 Rb8 Rb6 Bh8 Qee6 Qc3 Qe5 Bhf6 Kf8 Qg7+ Ke8 Rf1 Ng1 R1f4 Qg8 Rg4 Qh7 Ka2 Qh8 Kb3 b1Q+ Qb2 Qf1 Ka2 Qc4+ Ka1 Qe7 Qc1 Qee6 Bb2 Qe7 Ba3 Qee6 Qgc3 Qee5 Bf6 Kf8 Q1b2 Kg8 Be7 Kg7 Bd8 Qf6 Qe5 Kg6 Qe7 Qe5 Qf8 Rh7 Qg7+ Kh5 Be7 Qf4 Nf3+ Qg5 Rf8 Qe5 Beh4 Rh6 Ng5 Rh7 Qb7 Kh6 Rf5 Kg6 Qe7 Rh5 Qg7+
4Q1NQ/4pr2/r1brRq1B/1QpRRrB1/2q2RK1/3k4/4nR1P/bNB5 b - - 0 1 illegal: No possible last move
k3b2n/P4rb1/R2R1bq1/6B1/1p1N3R/b1QN1qB1/KNrp4/NN2B2Q b - - 0 1 legal: proof: e4 c5 d4 a5 dxc5 f5 exf5 a4 g4 a3 f6 Ra4 bxa3 Ra6 a4 Ra7 a5 Ra8 f4 h5 g5 Ra6 Be2 Ra8 Bg4 hxg4 f5 Qb6 Qd5 Kd8 Qd1 Kc7 Qf3 Nc6 Qd1 Ne5 g6 Nf7 gxf7 Kc6 Na3 Qc7 Nb1 Qd8 Kd2 d5 Kc3 e5 Kb2 b5 a4 Kb7 h4 g5 c4 g3 h5 d4 c6+ Ka7 h6 g2 c7 e4 c5 g4 h7 d3 a6 e3 c6 e2 a5 e1Q Ne2 g1B Nd4 g3 Ka2 b4 Nc2 g2 Bg5 Bf2 Rh4 Qee8 Qh1 Be7 f8B g1B f7 Bd4 f6 Bf5 c8Q Bb2 c7 Bec5 Bd6 Be5 f8N Bb2 f7 Bb6 Bg3 Bc1 Ng6 Bgf2 f8N Be1 Ne6 Bc3 Ned4 Ba3 Ne5 Nh6 Be1 d2 Nd3 Rf8 h8B Qh5 Be5 Bd7 B5g3 Be8 Qch3 Bcb2 c8R Qf6 Rc6 Qhf3 Rd6 Nf7 Qc8 Rb8 Qc3 Ka8 a7 Qg6 Rh2 Bd8 Rh4 Kb7 a8N Nh8 Nb6 Bf6 Na4 Rf7 a6+ Ka8 a7 Rc8 Kb3 Rc5 Ra2 Bc1 Na1 Bab2 Ra3 Rc8 Ka2 Rcc7 Qb3 Rc2 Qc4 Bc3+ Nab2 Bg7 Raa6 Bf6 Ne2 Bg7 Qb3 Bcf6 Qc3 Qg2 Nd4 Q2e4 Kb3 Qb7 Na4 Ba3 Nab2 Qf3 Ka2
1r4Br/4b3/Rn2rnB1/N4P1k/1QNBQ2B/K3Bp1r/1rp1R3/b4NQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 f4 f3 e5 b6 Bf5 exf5 e4 Ra5 e3 Ra2 Qe7 Ra1 Qe4 fxe4 Ke7 Ra3 Kd8 Ra1 Ke8 d4 Kf7 b4 a5 g4 c5 b5 h5 b7 a4 b6 a3 d6 c4 d5 c3 d7 c2 d8B f3 d6 e2 Kd2 e1R Kc3 a2 Kb2 h3 d7 h4 g5 h2 e5 h3 g6+ Kg7 e6 Re5 e7 Kf6 e8Q+ Be7 g7 Rh5 Nd2 Kg5 Ne2 Nh6 g8B Nf7 Nc4+ Re3 Ng3 Rh8 Bh7 Na6 b8B Kg4 b7 Nb4 Ba7 Rd3 b8Q Rd6 Ka3 Kh4 Be3 Nd5 Qb4 Rb8 Bad4 Nb6 Bd3 Nh6 Qg1 Rf6 Nf1 Ng8 Be4 Rc6 Bd5 Nf6 Bdg8 Re6 Re1 a1B Re2 Bc5 Be7 Bd6 d8N Bc5 Qc6 Kh5 Qe4 Bd6 Qg3 Bc5 Rg1 h1R Nc6 h2 N6a5 Bd6 Bd8 Be7 Rgg2 Rg1 Qe1 h1R Rg6 Rg4 Qg3 Rh3 Qg1 Bd6 Rg7 Bc5 Ra7 Be7 Ra6 Rg7 Bc7 Rf7 Bg3 Rff8 Bh4 Rfc8 Be5 Rc5 B5d4 Rb5 Qc5 Rb1 Qb4 Rb2 Bg6#
3nRNr1/rk4rb/3P4/3NQ1RB/6n1/1B2QK1b/pBBB3p/n1R3rN b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 h3 f5 Ra3 g5 Ra4 f4 Ra1 Qf6 h4 Qf5 gxf5 g4 Nc3 Bh6 Nb1 Bg5 hxg5 Kf7 Ra4 Ke7 Ra1 Ke8 Kf2 Kd7 e4 c5 d4 Kc7 b4 a5 e5 h5 b6+ Kb7 f6 a4 d6 h4 f7 h3 f8N a3 d5 h2 d7 c4 d8B a2 e6 c3 g6 c2 b5 Nh6 g7 Ra4 g8B Re4 e7 Re3 e8B Nf7 Bd3 Be6 Qe2 Nd7 Bb2 c1N Nh3 Nb3 Rg1 Nde5 Bg5 Bc8 Nc3 Nd8 Bh5 Bf5 Bc2 Bh7 Rac1 Na1 d6 Re4 Nd5 Ra4 Qe3 Ra7 Bgf7 Rg8 Rg2 Ka8 b7+ Kb8 Nf6 Rg7 Bfb3 Rg8 Nd5 g3+ Kf1 f2 Ke2 f1R Nf2 Rg7 Nh1 Ng4 Bh6 Rd1 Kf3 Rd4 Rgg1 g2 Bg5 Rda4 Bh6 Ra8 Qe5 Ka7 b8R Ra6 Rc8 Kb7 b6 R6a7 Qe3 Ne6 Re8 Nd8 Rgf1 g1R Rf2 Nf6 Rg2 Rb8 Rg5 Rc8 Kf2 f3 Qe5 Rb8 Ke3 f2 Kf3 f1B Qe3 Kc6 b7 Bh3 Qe5 Rba8 b8Q Ng4 Qb4 Rc8 Qbe4 Kb7 Qe3 Rcc7 Bc3 Rg8 Bg7 Re7 Bd2 Rd7 Qe7 Rc7 Bb2 Rd7 Qf6 Rdg7 Qfe5
3b3B/Q7/PQ2n1pr/Nn6/4RrQ1/2RK1bNp/kNrB3b/1b2RN1N b - - 0 1 legal: proof: c4 a5 b4 d5 bxa5 f5 cxd5 f4 d6 e6 d7+ Kf7 g3 Nh6 gxf4 Ng8 f5 Ke7 h4 g6 d4 Qe8 d5 Bg7 h5 Qf8 h6 Kf7 d6 Qe7 Bg2 Bf8 Bf3 Qf6 Bd5 Qg7 hxg7 exd5 Kd2 h5 d8Q b5 a4 c5 e4 b4 f4 d4 d7 c4 a6 h4 a7 b3 a5 c3+ Kd3 c2 a6 h3 f6 Ke6 e5 Kd5 e6 b2 f5 Nh6 g8N Kc5 e7 Kb4 e8N Kb3 f7 Rh7 f6 Rh8 Qg4 Rh7 Ne2 Rh8 Nd2+ Kb4 Nd6 b1R Nf1 Kb3 Neg3 Nf5 Ra4 Rb2 Ne7 Rh6 Nc4 Nd6 Bd2 c1B Nef5 Nb5 Qb6 Be7 f8B Bd8 f7 Rc2 Bg7 Nc6 f8R Bb7 Rb4+ Ka2 Bh8 Ba3 Rb3 Bd6 Re8 Rc8 a8Q Be5 Ne4 Bh2 Qaa7 Ra8 Nb2 Bc8 Ke2 d3+ Ke3 Bb7 N5g3 Ncd4 Rc3 Ne6 Nf2 Bf3 Rg1 Rc8 Nfh1 Rc4 Re7 Rf4 Re8 Bh4 d8N Be4 Nc6 Bd8 Na5 Bf3 Be1 d2 Kd3 d1B Bd2 Rf7 Ne3 Rf4 Re1 Be4+ Kc4 Bdf3 Nef1 Rc1 Re7 Bb1+ Re4 Rc2 Kd3 Ng5 R7e5 Ne6 Re1 Bd1 R5e3 Bf3 Re4
1B1r2br/p1qR3B/3q3r/2B1bkPQ/Q2q1B1R/K1p5/b3N2N/1N3BR1 b - - 0 1 illegal: No possible last move
2RKB2N/q1r2Rb1/2q5/q3rR2/3pNQ2/1R1Ppn2/BQr3k1/Q3BrR1 b - - 0 1 legal: proof: b4 f5 f4 c5 bxc5 b5 a4 b4 e4 fxe4 f5 b3 f6 b2 g3 Qa5 g4 Qb5 Na3 b1Q axb5 Qa2 Nb1 Qa5 Nc3 Qb6 Nb1 Qd8 Ke2 g5 Ke1 Bb7 Be2 Bd5 Bf1 Be6 h3 Bf5 gxf5 Nc6 h4 g4 Ra2 Ne5 Ra4 Nf7 Ra1 Ng5 hxg5 Bg7 Rh5 Bh6 Rh1 Bf8 Ke2 Kf7 Ke3 a5 Kf4 d5 Ke5 h5 c4 e3 g6+ Ke8 Ke6 h4 c6 d4 b6 a4 g7 a3 c7 e2 c8Q e1R+ Ne2 h3 c5 h2 b7 g3 b8R a2 c6 g2 c7 g1Q Rb3 Ra5 Nc3 Rc5 Qb8 Qe3+ Ne4 Qf3 c8R Rc2 Nf4 Nh6 g8B Bg7 Ng6 Rh7 Nh8 Ng4 f7+ Kf8 d3 Ne5 Bd2 Qg2 Qb7 Nf3 Be2 Rf1 Rab1 a1Q Be1 Qa7 Ra1 Rh5 Ra5 Rg5 Qa1 Rh5 Rg1 h1R Re5 R1h2 Rh1 Rc7 Qb4 Rg5 Bd1 Qc2 Qbc3 Qc1 Qcb2 Qcc5 Rd5 Rc2 Re5 Qca5 Rc5 Qe8 Rd5 Ng1 Bh5 Nf3 Bg6 Be5 Rd7 Kg7 f8R Rh5 f6+ Kh6 f7 Bg7 Rd5 Qeb5 Rf5 Qbb7 Rfe8 Qba8 f8Q Qc6+ Kf7 e6+ Re7 e5 Nc5 e4 Rd7 e3 Ke8 Qcb5 Ne4 Qba4 Kd8 Qc6 Rg1 Rg5 Be8 Rh5 Be6 Rg5 Rdf7 Kh5 Rh1+ Kg4 Rc3 Rh5 Ba2 Rg5 Rb3 Rh5 Rg1+ Kh3 Rh1+ Kg2 Qd6 Rg5 Qf4 Rh5 R5f6 Rc5 Rf5 Re5 Rg1+
NrbR1q1q/r4R1k/P2p4/4Q1bK/2BpQ2R/BbR2QBr/rR6/2N5 b - - 0 1 legal: proof: d4 f5 b4 c5 e4 cxd4 exf5 a5 bxa5 Nh6 g4 Ra7 f4 Ng8 f6 Ra8 f5 Qb6 f7+ Kd8 f6 Kc7 Bb2 Kc6 Bc1 Qd8 Bh3 g5 Bf1 Na6 Ba3 Nc7 Bc1 Nh6 h3 Nf5 gxf5 g4 h4 g3 Qh5 Ne6 Qd1 Ng5 hxg5 Kd6 Qe2 Kc5 Qd1 Kc6 Ke2 Kd6 Kf3 Ke5 Kg4 b5 c4 h6 a4 g2 c5 e6 a6 b4 g6 b3 c6 b2 c7 Rb8 g7 Rb6 g8Q Bb4 f8B Rc6 a5 Bd2 a7 Rc3 a8Q Rc6 f7 Kf6 a6 e5 Ne2 g1R+ Kh5 e4 Rh4 e3 Qg3 Rc3 Na3 b1B Qe4 Bc2 Nb5 Rg2 Bfa3 d6 Ra2 Bb3 Rb2 Qf8 Qgf4 Kg7 Qfe5+ Kh7 f6+ Bf5 c8R Rf2 Ng3 e2 Nc7 e1R Qdf3 Bg5 Bc4 Rh1 Bd2 Rh3 Bf4 Rc1 Na8 Re1 Rb1 Ra2 Rb2 Rg8 Ne2 Rb1 Qee3 Rg7 Bg3 Bd7 Rc5 Bc8 Qe3f4 Qg8 f8R Ra7 Rd8 Qf8 Rc2 Rbb2 f7 Rb1 Nc1 Rbb2 Be6 Rb1 R5c3 Rbb2 Kg4 h5+ Kf5 Rh1 Ne2 Qe8 f8R Kh6 Rc7 Bc4 Rh3 h4 Kg4 Rb8 Rb2 Bb3 Rf5 Qf8 Nc1 Kg6 Rhh2 h3 Rc3 Kh6 Bc4 Kg6 Rhf2 h2 Rg2 Rd1 Q3e4 h1Q Qff3 Qhh8 Rh2 Rh1 Rh4 Rh3 Qd1 Bh6 Qdf3 Kh7 Kh5 Bg5 Rf7+
1QBbNN1k/3K4/b1r1n1b1/qr1QpQpp/6Bn/2Q1P1B1/1R6/Q1RN4 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 f5 g4 d5 gxf5 b5 cxd5 Qd6 h5 Qg6 hxg6 axb4 a4 Ra7 axb5 Ra8 f4 h5 Kf2 c5 Ke3 e5 Ke4 c4 d4 c3 f6 c2 f7+ Ke7 b6 Kf6 d6 Kg7 Kd5 b3 b7 b2 f5 Nc6 b8Q Rh6 d7 Be7 Ke6 Nf6 d5 Bf8 d6 Na7 Nd2 b1B Ne4 Ba6 d8Q Bb5 d7 Nh7 f6+ Kh8 Bh3 Nc6 Qdc8 Na7 d8Q Ba4 Bf4 c1Q e3 Qc7 Ra2 Bac2 Bg4 Bd3 Rb2 Qc4+ Qd5 Qb5 Ne2 Qc5 Nd6 Ba2 Qa1 Bac4 Nc3 Nb5 Rc1 Ra5 Ne8 Be7 Nd1 Nd6 Bg3 Ba6 Qcc6 Qa3 Qcc5 Bd8 Qc3 Bc7 Ke7 Nf8 Bc8 Rb5 g7+ Kh7 g8B+ Kh8 Bh7 Qa5 Bhf5 Bb6 Bg4 Bc2 Nc7 Nf5+ Kd8 Nh4 Ke8 Nfg6 Kd7 Nf4 Ne8 Bd8 f8Q+ Kh7 f7 Rc6 Qe7 Ne6 f8N+ Kh8 Qf7 Bg6 Qf5
R2R4/PbQK3p/B2BBp2/2Q2N2/1b1Q4/B1nNn1kq/Br2n1rp/6N1 b - - 0 1 illegal: No possible last move
3KbBRn/2RQQpr1/Q2B1qB1/2pNPB1N/1qp5/3Nq3/6rB/3nk3 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 f4 b5 a4 e5 axb5 a4 c4 dxc4 fxe5 Bc5 Bg2 Bb6 Bf1 Ba5 bxa5 Bh3 Ba3 Bf5 Bc1 Bc8 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5+ e6 Ke4 h4 c5 d4 g5 a6 a3 a7 a2 b6 Qd7 h6 Qd8 b7 Nd7 b8B Qe8 h5 Rh7 e7 Rg7 d5 Rh7 d6 Nb6+ d7 Qf8 e8N Nd5 Bd6 Nc3 Bh3 Ne7 Bcf4 Qg7 Bh2 Ke3 Nf3 Kf2 e4 Qg8 e5 Qf8 Nf6 Rb8 a8B Rh8 h7 Ng8 Kf5 g4 h6 g3 Ne1 g2 Nd3+ Ke3 Be4 g1Q Nh5 Ba6 d8Q Rb7 Qe7 Qgg7 Rg1 Qb8 Qa4 Ke2 Qad7 Nd1 Nc3+ Kd2 Nd5 Rb2 Rb1 Rc2 Rb7 a1Q Rc7 Qd4 Rg6 Qb5 Kg5 Qb4 Bhf5 Qf8 Rg7 Bb5 Bg6 Qd8 Bef5 Nf6 Rg8 Ra2 Rf8 Rg8 h8B Rg7 h7 Ke2 Rg8 Kf1 Qc6 Nd7 Qa6 Nf8 Kf6 Qdc3 Qa3 Be8 Qa6 Qa8 Qd7 Qc6 Ke7 Rg2 Kd8 Qe1 Be4 Qe3 Bgf5 R7g5 Bg7 Ng6 Bgf8 Nh8 Qe7 Rg7 Qd7 Ng6 h8Q Qcb6 Qh6 Nh8 Qg5 Qc6 Nc1 Ke1 Qge7 Qca4 Bd3 Qc2 Bg6 Qcf2 Bb1 Qh4 Bbf5 Qf6 Nd3+
1qQr4/N1QBnp2/r1QK2bp/1Q4Rq/b1R1Q2B/P3r3/p1R3B1/6Nk b - - 0 1 illegal: No possible last move, all moves rejected
QR2BrNN/q2P4/1b6/2B1KQ1p/1Q1n1NpQ/1kq4n/p1R2r2/r1Q1R3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 Be6 g4 Bf7 g5 Kd7 g6 Nf6 gxf7 Ng8 f6 Qc8 h4 Qa6 h5 Qd6 f5 Qh2 Na3 Qxh5 Nb1 Qh2 d4 Kd6 b4 e5 b6 h5 b5 g5 b7 a5 b6 c5 Ba3 g4 Nd2 e4 Ra2 a4 Ne2 e3 Ne4+ Kd7 d6 Kc6 d7 Kd5 d8Q+ Kc4 d5 Na6 b8R Ne7 d6 Bg7 f8Q Qg2 b7 Nc7 f7 Nc8 f6 Rh7 Qc1+ Kb3 Nf4 c4 Rc2 c3 Bb5 e2 Qfe7 Ne6 f8Q Bh8 f7 Nb6 Be8 Nd4 d7 Nd5 Bc5 a3 Qa5 a2 Nf6 Bg7 Rf1 Qg1 Ng8 Rh6 Qg5 Rf6 Qh4 Qe3 Rh1 Rf5 Rg1 Bf6 Rf1 Bd8 Rh1 Bb6 Rf1 Qh3 Kf2 e1R Rh1 Qf1+ Kg3 Qa6 Rg1 Rd1 Re1 Qa7 Rd8 Nb4 b8Q Nd3 Qe5 Nf2 Rb8 Rf6 Qf5 Nh3 Nd3 Ng1 Kf4 Nh3+ Ke5 Ng1 Qfh6 Nh3 f8N Rf7 Nf4 Rf6 Rce2 c2 N8g6 Rf8 Qh8 Rf7 Qa1 c1Q Rc2 Qb2 Qc1 Qc3 Q8f6 Rf8 Qc6 Rf6 Nh8 Rf7 Qe3 Ra1 Qc1 Rf8 Rd8 Rc8 Qa8 Rc6 Rb8 Re6+ Kd5 Re2 Kd6 Rd2 Ke5 Rf2 Qb4+
3K1N1q/qP2B3/1n3r2/Nq1k1Qp1/3r2RQ/Npp2R2/1N3B2/1nQB2bN b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 axb4 a4 b3 Qc2 b4 Qd1 Bb5 axb5 Rh7 Ra6 Rh6 Ra1 Rh8 Ke2 Kd7 Kd3 Kd6 Kd4 g5 f4 b2 h4 b3 b6 c6 f6 e6 h6 Be7 b7 Ra7 h7 Qf8 f7 Ra2 f5 Ra7 h5 Ra2 f6 Qe8 f8Q Qg6 h6 Qe8 f7 Nd7 Ne2 Ndf6 Na3 b1Q Rg1 Qd8 Ng3 Rb2 Nh1 Qc7 Rg4 Nh5 Be2 Kd7 d6 c5+ Ke5 Kc6 d4 c4 Be3 c3 Qc1 Ng3 Bd1 Ra2 Bf2 Qc8 d7 Rd2 d8B Bc5 Be7 Qa2 Rb1 Nf1 d5+ Kc7 d6+ Kc6 d7 Nf6 Rb2 Nd5 Rb1 Nb6 Kf6 e5 d8N+ Kd5 Nc6 e4 Na5 Rg8 h8N e3 h7 e2 Ng6 e1Q h8Q Rd4 Ne5 Nd2 Nec4 Qf1 Nb2 Qb5 Qh4 Qb8 Ra1 Nb1 Qc8 Rg7 f8N Rg6+ Kf7 Rc6 Ke8 Rf6+ Kd8 Qa7 Nbc4 Qe2 Nb2 Qe5 Qf5 Re4 Be1 Bg1 Bf2 Rb4 Nc2 Rd4 Ra4 Rd3 Raf4 Rd2 Rf3 Rd4 Qc8 Qh2 Na3 Qh3 Qg3 Qh6 Qh4 Qh8 Qf5+
B1K1B2b/QPBQ1nb1/5q2/2q1B1p1/Bk1pR2b/Nn4N1/1NR1prQ1/8 b - - 0 1 legal: proof: f4 g5 a4 c5 e4 b5 axb5 a5 h4 f5 d4 fxe4 dxc5 Ba6 h5 Bb7 g3 Ra6 g4 Rg6 hxg6 Bd5 f5 Qb6 f6 Be6 Qe2 Qc7 Qd1 Bf5 gxf5 Qd8 Kf2 d5 Ke3 Kd7 Kd4 h5 Ke5 e3 b4 e2 c4 e1B c6+ Kc7 Ke6 Kb6 g7 h4 c5+ Kc7 b6+ Kc8 c7 Kb7 c8B+ Kc6 f7 h3 f6 a4 Bb2 h2 Bg2 Kb5 c6 a3 c7 a2 Bd7+ Nc6 c8N Bf2 Be8 Bd4 Nd6+ Ka6 b5+ Ka5 Nc4+ Kb4 Ne2 Rh6 Re1 Na5 Nba3 Rh7 Qa4+ Kc5 Be4 h1Q Rac1 Qc7 Rc2 Nb7 Qa7 Qg3 Kd7 a1B Kc8 Qe3 Bf3 Nh6 g8B e5 Be4 Bd6 f8Q Qg2 f7 Na5 Qfe7 Qgf3 f8Q Kb4 Qed7 Rf7 Qfe7 Rf4 Qg4 Bc3 Qg2 Qc5+ Qec7 Qff2 Qc6 Bc7 Qd7 Rf5 Bf3 e4 Be6 Bh8 Bd4 Bc3 Nb2 e3 Bf6 d4 Ba8 Bd2 Bb3 Nf7 Ba4 Nb3 Bd8 Rf3 b7 Bce5+ Bc7 Rf4 b8B Beg7 b6 Qf1 b7 Rf6 Qdc6 Bc3 Be5 Rf5 Rd1 Be1 Bbc7 Bh4 Ng3 e2 Qd7 Qf3 Rd3 Qfc6 Rdc3 Rf2 Re3 Qf6 Re4
bRq4B/1p6/1r1b4/RNQ1p2P/knBq1Q1N/brQ1p3/2Q2RQK/B7 b - - 0 1 illegal: Other
K2NB1Q1/pn1bbB1r/6r1/1R1P1qq1/2RQ1p1N/1p5Q/6BQ/R2bk1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 Na6 b4 Nb8 bxc5 b4 Rh6 Na6 Rh4 Bg7 Rh1 Bf8 c4 d6 c6 Qe7 c7 Nc5 Bb2 Ne6 c5 Nd4 c6 Nb5 axb5 Qf6 Bd4 Qd8 Bc5 dxc5 Kf2 Ke7 Ke3 Ke6 Ke4 h5 d4 h4 g4 c4 b6 h3 b7 c3 b8Q c2 g6 c1Q g5 f6 g7 h2 g6 b3 Na3 Qe8 Nc4 Qc3 Na5 Bb4 Nb7 Qd8 Nf3 Bf8 Nh4 Qd6 Nd8+ Ke7 e6 Bb7 c8R Qc7 Kd5 f5 e4 Kf6 e5+ Kg5 e7 Kf4 e8B Kg3 e6 Kf2 e7 Qh3 Bf7 Qcg3 e8B Nh6 g8Q Rh7 g7 Qg5 Qd6 Ba6 c7 Be7 Kc6 Bb5+ Kb7 Bd7 d5 Qf3 Rb8 f4 c8Q Nf5 Qh6 Qfh5 Ra4 Qhg4 Qd4+ Ke1 Rc4 Qh3 Rg1 h1B Qh5 Bf3 Rh1 Ba4 Qe6+ Be2 Qee3 Qhg4 Qh3 Bd1 Qh2 Qh3 Qg4 Qd3 Qgg1 Qc2 Qh8 Bd7 g8Q Qd3 Rbc8 Qe4 R8c5 Rc8 Qh3 Rc6 Rb5 Nd6+ Ka8 Qef5 Qhh2 Rg7 Qh5 Rh7 Qf3 Nb7 Qfh3 Rd6 Qgg4 Bf3 Bg2+ Ke2 Ra1 Rg6 Qgg3 Bg4 Qhg1 Bf3 Qg3h2 Bg4 Raa4 Bf3 Bf1+ Ke1 Ra1+ Bd1 Bg2+
1R6/Bp2Nb2/pnnN4/2RPr3/3BB1Qk/1B2bp1n/bQ1Rr2N/B2K4 b - - 0 1 illegal: No proof kernel
1nq3QQ/1n2pR2/RBR2r2/1pN2pN1/2Qn1K2/1B2Q1rN/P4Q2/1k3nb1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 g5 b4 axb4 gxh5 Rh6 Na3 Rh7 Nb1 Rh8 fxg5 b6 e4 Ra5 d4 Rc5 d6 Be6 e5 Ra5 d5 Bd7 e6 Ra8 Qd3 Bg7 exd7+ Kf8 Qd4 Bh6 Qd1 Kg7 Qf3 Kh7 Qb3 Bf8 Qd1 Kg7 Kd2 c5 Ke3 f5 h4 b3 h6+ Kg6 h7 c4 h5+ Kf7 g6+ Kf6 h6 Ke5 g7 c3 Qd2 b5 Qf2 c2 Nc3 b2 Na4 b1N Nc5 Ra4 Nh3 Qc7 d8R Qd7 Bc4 Qa7 d7 Qb6 d6 Qb7 Bb3 Nf6 g8Q Rf4 Qc4 Bg7 Rf8 Ne8 d8N Rg4 d7 Nd2 Nde6 Nd6 d8Q Qc8 Qb6 Nb7 Rf7 Rf8 h8Q Nf1+ Kf3 Bf6 Be3 c1N h7 Ne2 Qg8 Rg6 Neg5 Nd4+ Kg2 Bg7 h8Q Rf6 Rc1 Bh6 Nge6 Bf4 Rc2 Bh2 Neg5 Bg1 Rc3 Ne2 Kf3 Rd8 Qb4 Rd3 Rc4 Kd5 Qa7 Nd4+ Kf4 Ndc6 Bd4 Rg3 Be3 Nd4 Rc3+ Kd6 Qc4 Kc6 Qa3 Kb6 Qc1 Ka5 Nce4 Nc5 Qd3 Nf3 Bd4 Kb4 Qce3 Ka3 Qdc2 Bh2 Ng1 Nb7 Rc7 Rb6 Qc4 Rg6 Ba7 Nd4 Nc5 Rg7 Rf6 Rf7 Ra6+ Na5 Bb6 Rf6 Bc2+ Kb2 Bb3+ Kb1 Rc6 Qf8 N1h3 Nb7 Rg1 Qc8 Nf3 Rgg6+ Rg3 Bg1 Rg5 Rh6 Rg7 Rhg6 Rf7 Rg3 Nfg5
2Q4q/1rp4R/1Npp1k2/b1P2b2/4BNN1/qqB4R/Bb2RR2/2n1RKQ1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 gxh5 Kf7 a4 Rh6 b4 Raa6 b5 Rh8 b6 Ra7 Qf3 Ke8 Qc6 Ra8 d4 e5 Ra2 e4 Ra1 Ra6 Qd5 Nc6 Qc5 Ne5 dxe5 Ra7 Qc6 bxc6 b7 Ra6 Ra3 Rb6 Ra1 Rb5 axb5 Qf6 Kd1 Qg5 Ke1 Qd8 b8Q Kf7 c4 g5 f4 a4 h4 e3 c5 e2 h6 d6 b6 g4 f6 a3 f5 a2 h5 g3 e6+ Ke8 b7 g2 f7+ Ke7 h7 Kf6 h6 Ke5 f6 Kf5 e7 Bd7 e8B Qe7 Bd2 Kg6 Rh2 Qe4 Bc3 Bc8 Nf3 g1Q Ne5+ Kg5 Na3 Be6 Qc8 Qc2 b8Q Bd5 Nac4 Bg7 f8R Qe4 f7 Qed4 Qb1 Be4 Nb6 Qg4 Bg2 Bf5 Be4 Nf6 Qd1 Rg8 h8R Nd5 h7 Qh3 Bd7 Nb4 Be6 Qde3 Qd4 Qef3 Qg1+ Kf6 Re8 Qhh5 f8R+ Qf7 Rd1 a1Q Rh3 Na2 Rb1 Nc1 Ba2 Qh5 Kf2 e1B+ Kf1 Qb2 Re7 Qa3 Rb2 Bh6 Re2 Rg4 Ree8 Bg7 Re7 Kg5 Ree8 Qfb3 Rf7 Rg2 Rhf8 Rg3 h8N Qh7 Nhg6 Qh8 Nf4 Rg4 Ba1 Ba5 Bc3 Bf6 Rfh7 Bg7 Rg8 Kf6 Re7 Rg2 Re1 Rb2 Ree8 Bf8 Rg2 Bg7 Rf2 Qd1 Na4 Rb7 Nb6 Qdb3 Rg8 Bh6 Rgg2 Bf8 Rfe2 Bg7 Rgf2 Qb5 Bb2 Ke7 Nf7 Qbb3 Ba1 Bd4 Ne5+ Kf6 Bc3 Qg7 Bb4 Bb2 Bc3 Qh8 Ng4+
RK2B3/3R1p1R/2BBN1Q1/pp1b1b2/Pqn2bQQ/k2q3n/4Q3/4QN1q b - - 0 1 legal: proof: f4 c5 g4 h5 b4 d5 bxc5 e5 c4 exf4 cxd5 h4 h3 g5 Qb3 b5 Qd1 a5 Qa4 Rh5 gxh5 g4 Qc2 g3 Qd1 Ra6 Qc2 Rg6 Qd1 Rg4 hxg4 Bg7 Bh3 Bh6 Bf1 Bf8 e4 Ke7 Ke2 f3+ Kd3 g2 Kd4 h3 Ke5 f2 a4 h2 d4 Qb6 h6 Be6 c6 Bc8 g5 Qc7+ d6+ Kd8 d5 Bb7 g6 Ke8 h7 Bc8 h8R Kd8 g7 Bd7 Nd2 Qa7 c7+ Kc8 Nh3 Kb7 c8Q+ Kb6 Qe2 g1Q Nf4 Qg4 Ne6 Qg2 Ba3 Nf6 g8Q Qb7 Rd1 Qc7 Qg6 Qh3 Bg2 Bg7 Nf1 Qc4 Rg8 Bc6 d7 Bh6 Kd6 Qd4 e5 Nh7 d8Q+ Ka7 Kc7 Bf4 d6 Ng5 d7 Qb4 Bf3 Bd5 Qe8 Nc6 d8Q Qg3 Be4 Nh3 Qh4 Qd3 Qcd7 Ka6 Kc8 Kb6 Bg2 Nd4 Kb8 Nf5 Bf3 Nd6 Qee7 Bc4 Bc6 Bd5 Rh8 Nc4 Rh7 Qbb1 Bd6 Qb4 Rg1 h1B Rg5 Bhe4 Rgh5 Nb2 Rh8 Bf5 R5h7 Nc4 Qc8 Qg3 Qcg8 Qg1 Qgg4 Qg3 Q8g6 Qgc3 Rd8 Qd3 Rd7 Bh6 Ra7 Bf4 Ra8 Qdd2 Qef6 Bg2 Nh2 f1Q Bf8 Qbb2 Qhe1 Qh1 Qfh4 Qe3 Rd7 Bd5 Bd6 Qd3 Nf1 Qba3 Ng7 Qc5 e6 Qca3 e7 Qb2 Bc7+ Kc5 e8B Qba3 Q1d1 Kb4 Qde1+ Qac3 Ne6 Ka3 Be5 Qb4 Bd6
bq1Q2B1/2BNN3/Q1p2r2/B3R1r1/1qQP1k1K/2N1q1n1/RQ1q1pp1/Q7 b - - 0 1 legal: proof: a4 d5 c4 e5 cxd5 f5 g3 b5 axb5 e4 Qc2 e3 Kd1 exf2 Qa4 Qh4 Kc2 Bc5 Kd3 Qg5 Qd1 Qd8 Kc2 Bf8 Nh3 g5 Ng1 f4 Ra6 f3 Ra4 Nd7 Ra1 Bd6 h3 Bf4 gxf4 Ne5 h4 g4 Bh3 Nf7 Bf1 Ng5 hxg5 Qd6 Ra4 Qe7 Ra1 Qd8 Kd3 Kf7 Ke3 Kg6 b4 Kf5 d4 h5 g6 a5 g7 g3 b6 h4 d6 a4 b7 h3 b8Q h2 b5 c6 b6 g2 d7 a3 b7 a2 Nc3 Kg4 f5 Qa5 d8Q Qa3 f6 Be6 f7 Qb3 f8N Qc2 Nd5 Qf5 Bd2 Qb1 Ba5 Ra6 Ne7 Qf5 Nd7 Nh6 g8Q+ Qg5+ Ke4 Ra8 e3 Ra6 Bc4 f1Q Ne2 f2 Nc3+ Qe2 Re1 h1Q Qa7 Qh5 b8B Qe8 Bbc7 Nf5 Bb3 Rb6 Qa6 Rb5 Qd2 Rh5 Qb2 Qd2 Re2 Rb7 Ke5 Rh6 e4 Rf6 Rae1 a1Q Ba2 Bb3 Qgc4 Qb1 Qa1 Ba4 Qb8 Ra7 Qbb2 Qge3 Bb3 Ng3 Ba2 Rg6 Bb3 Rg5+ Kf6 Qd8 e5 Bb5 e6 Qb8 Ba2 Qed3 Re5 Kf4 R1e2 Qf3 Nf5 Qfe4 e7 Qee3 e8Q Rb7 Ne7 Qbe1 Qa8 Ba6 Qd8 Rb5 Qa7 Bb7 Qa6 Ba8 Bb3 Nf1 Ba2 Rf5+ Kg6 Rf6+ Kh5 Ng3+ Kh4 Qb1 Qa3 Qb4 Bb3 Qdd3 Ra2 Qdd2 Q3b2 Qd6 Re6 Rg5 Re5 Qdb4 Qcf1 Qc2 Bg8 Qcd2 Qfc4
1R1Q1q2/3r3P/K1RQ2r1/1Qb1nr1r/1N2q3/p1B1B1pQ/1N3p2/3Q1NkB b - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 a4 g5 axb5 d5 cxd5 h5 Bh3 Nd7 Bg2 Ndf6 Bf1 h4 h3 Nh5 gxh5 g4 Nc3 g3 Nb1 Bg4 hxg4 Bc5 Qb3 Be7 Qd1 Bf8 b4 Kd7 e4 Kd6 Ke2 Ke5 Kd3 a5 Kc4 f5 d4+ Kf6 b6 Kg5 Kb5 c5 b7 a4 b8B h3 d6 Kh4 h6 f3 d7 f2 g5 f4 e5 h2 e6 f3 g6 a3 e7 c4 e8Q c3 h7 c2 g7 Qc8 d8N Ra6 d5 Rc6 d6 Qg4 d7 Ne7 g8Q Bh6 Be5 Qg6 Nd2 Nc8 Ne2 Qg4 Nf4 Qh3 Bg2 f1Q+ Nd3 f2 Bc3 Nb6 Rb1 Qf5+ Ka6 Qe2 b5 Nc4+ b6 Ne5 Qge6 Qee4 Nf1 Qf8 Be3 c1R Nb2 Bg5 Qf5 Rg6 Nc6 Be7 b7 Bc5 b8Q Rhg8 Rg1 h1R Qbd6 R8g7 Nb4 Rf7 Qfe6 Rf5 Bf3 Kh3 d8Q Rh2 Qb5 Rc2 Bh1 Rd2 Q6b6 Rd7 Qbd6 Rg2 Nd2 Kh2 Re1 Nc4 Nf1+ Kg1 Re2 Rh2 Rc2 Rhh5 Rcc1 Rd5 Qh3 Ne5 Be1 Ba7 Rc6 Bc5 Bc3 Nc4 Q6f6 Rdf5 Qfd6 Ne5 Na2 Nf7 Qbb3 Qee7 Nd3 Bd4 Qa4 Qe6 Rb8 Qe4 Qb5 Bc5 Nab4 Ne5 Nb2
BK1B1r1q/2pk2NN/NQN2R2/1P1R3q/7r/n1R3qB/2pNp3/2qb3Q b - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 g4 h4 Kf7 f4 Nd7 c4 dxc4 e5 Ndf6 exf6 Bh6 Ra6 Bg5 hxg5 Kf8 Ra1 Ke8 Kf2 a5 Ke3 e5 Ke4 h5 d4 h4 b4 h3 d5 a4 d6 c3 Kd5 e4 Kc6 h2 f7+ Kf8 b6 c2 b7 a3 b8N a2 g6 g3 b5 e3 d7 Ke7 f8N g2 g7 Rh7 f6+ Kf7 f5 Rh5 Nh7 Ra7 Na6 Qe8 Ne2 g1Q Ng3 Qf2 Nd2 Qe2 Bh3 Rg5 Nh5 Qe1 Rf1 Qf8 d8N+ Ke8 f7+ Ke7 Rf4 Qf2 Qh1 Nh6 g8B Qg7 f8R Ng4 Bd5 Ra8 Rf6 Qh8 Ng7 Qg3 Rf1 Be6 Kb7 Ne5 Nc6+ Kd7 Ba3 Rg4 Be7 Rb4 Bd8 Nc4 Rf3 Na3 Raf1 a1Q R1f2 Ra7+ Kb8 Qc1 Be4 Bc4 Rf1 Be2 R1f2 Bd1 Rf1 e2 Rc3 Qg6 Ne7 Qh5 Rh6 Qb2 f6+ Kd6 f7+ Ke5 f8Q Nc4 Qg1 h1Q Qf3 Qc1 Rf6 Qf8 Kc8 Qg2 Qb6 Qg3 Qh1 Na3 Bb7 Re4 Nc6+ Kd5 R1f4 Qh8 Rff3 Re8 Ba8 Rf8 Nab8 Ra4 Na6 Rc4 Kb8 Rh4 Rf7 Kd6 R3f5 Re8 Rf8 Kd7 R8f6 Rf8 Rd5#
N1BrQRK1/1bQ3p1/b1R4R/2Q1p3/NrN1rP1N/2q1b1p1/2k2B1r/1N6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 Ne7 f5 Ng8 e3 Nd7 Bd3 Ne7 Ne2 Nc5 Qb3 Ne6 fxe6 f5 Qd1 f4 Ng1 f3 Bc4 Ng6 Bf1 Nf4 exf4 Bc5 Qb3 Bd6 Qd1 Bf8 Kf2 Ke7 Ke3 Kd6 Ke4 Kc5 Kf5 Kd4 Kg6 a5 Kf7 c5 h4 c4 b4 a4 h5 c3 b6 a3 d6 g3 b5 c2 d7 a2 h6 f2 h7 Ra4 b7 Bd6 b8Q Rb4 b6 Qc7 e7 Bb7 d8Q Qc3 e8N Qe3 Ba6 f1B Qbc7 Qc3 Ne2+ Ke4 d4 Rc4 d5 Bg2 Qg1 Kd3 Be3 c1R Rh6 Qb3 Bf2 Bf3 Nec3 Rf1 Na4 Bb4 d6 Qb2 d7 Ba5 Nd6 Bd2 Qe8 Qb5 d8N Bg4 Ne6 Rb4 Nc4 Rg8 h8N Be2 Ng6 Re1 Nh4 Bc1 Nf5 Be3 Nh4 Bc6 b7 Qc5 b8R Kc2 Bc8 Bb7 Ra8 Qd4 Ra6 Qc3 Rb6 Rh8 Rc6 Rh7 Kg8 Rd1 Qb6 Rd8 Nc7 Bf1 Na8 Bd3 Nd6 Bda6 Qc7 Re4 Rf6 Rh5 Nc4 Rh7 Rf8 Rh6 Nbd2 Rh7 Re1 a1R Nb1 Ra3 Rd1 Rb3 Rdd6 Rh5 Rh6 Rb4 Ng6 Rh3 Nh4 Rh2 Qg2 Red4 Qd5 Re4 Qc5
1N2NR2/8/2QNPr2/3KQQ2/3nr2B/Rp1q3q/ppnrR1Q1/Q2k1r1B b - - 0 1 illegal: No possible last move
5k2/1NP1QBn1/p1R3K1/Bp4B1/N1qnQRq1/2N1pb2/3Rb3/B2bb1B1 b - - 0 1 legal: proof: e4 f5 exf5 c5 g4 h5 gxh5 b5 d4 cxd4 a4 a6 a5 Qc7 Ra4 Qb6 Ra1 Qd8 c4 g5 b4 Rh6 c5 Rb6 axb6 Ra7 Qe2 Rc7 Qd3 Rc6 Qd1 Rd6 c6 Rd5 Qg4 Bg7 Qd1 Rc5 bxc5 Bf8 Kd2 e5 Kd3 d5 f4 g4 h4 g3 c7 g2 f6 Bd7 c8N Bh3 h6 Bg4 b7 Qd7 f7+ Kd8 h5 Qd6 h7 Bf3 h8B Qc7 f5 Ne7 h6 Ng6 h7 Bd6 f8R+ Kd7 f6 Qa5 c6+ Ke6 f7 Nd7 b8B Ne7 c7 Ng8 Ne2 g1Q Ba7 Bg2 Rh2 Ndf6 Qc2 Nh5 Nec3 Ng7 Bg5 Qb4 Na4 Ne7 Nbc3 Bf3 Rc1 Nc6 Rd2 Qg4 Qb1 Be7 Nd6 Bd8 Nb7 e4+ Kc2 Bf6 Bc4 Ke7 Bb6 Qc5 Ba5 e3 Kd3 Ne6 Bg7 Qb4 B7h6 Ng7 h8B Qc5 Bf4 Bh4 Bh2 Be1 Bg1 Qb4 Rd8 Qb3 Rd6 Kf8 Rf6 Ne7 Rf4 Nf5 Bg5 Qb4 Bb3 Qc5 Nd1 Qb4 Rc6 Be2+ Kc2 Qc4+ Ndc3 Bf3 Kc1 Be2 Qe4 d3 Ba2 d4 Kb2 Qc5 Kb3 Qd5+ Kb4 Qb3+ Kc5 Qb4+ Kd5 Qc4+ Ke5 Bf3 Rb2 d2 Kf6 d1B Rd2 d3 Kg6 Nd4 Rg2 d2 Nb6 Qe2 Qd3 Nc2 Ncd5 Nh5 Ba1 Ng7 Nc3 Nd4 Qe4 Qd3 Nba4 Qf1 Be6 Qc4 Rf6 Ke7 Rf2 Bde2 Rh2 d1B Rf4+ Kf8 Rg2 Bf1 Rd2 Bd3 Rf6 Ke7 Bd5+ Kd7 f8Q Bf1 Qa3 Bf1e2 Be6+ Ke8 Rf4 Qb4 Bf7+ Kf8 Qa2 Qc5 Qae6 Qc4 Qe7#
6QQ/R4bn1/NpQ4r/1K1B1QrR/P2p1p2/2pQ1qNB/2Rn4/4k1Br b - - 0 1 legal: proof: f4 h5 b4 e5 fxe5 Nc6 g4 Nb8 b5 Nf6 b6 axb6 Ba3 Ng8 Bb2 Nh6 Bc1 Ng8 gxh5 Qf6 c4 Qd8 c5 Qg5 c6 Qf6 cxb7 Qd8 d4 c5 Qa4 c4 Qd1 Bc5 dxc5 Rh7 Nc3 Rh6 Nb1 Rh8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 h4 Kg4 e4+ Kg3 h6 Kf2 h5 g5 h7 d5 h6 f5 e6 d4 e5 f4 e7 c3 e8B g4 e6 g3 e7 g2 c6 Ra3 c7 Ra8 Bf7 Nd7 b8Q Ra5 e8Q Ra7 Na3 Ne5 Be3+ Kg3 Rh2 Bh3 c8Q Qd5 Qec6 Qd8 Nb5 Bd7 Nc7 Qh4 Qd3 Qh5 a3 Rb7 Kb5 Qf3 Bd5 Be8 Qcf5 Nf6 Qbc8 Rg8 h8R Nh5 h7 Rg5 Qb8 Bg6 Qg8 Nc4 Ra2 Ra7 a4 Be8 Rc2 Nd2 Na6 Re7 Rh4 Re6 Rh2 Ng7 Rh5 Rh6 Nb4 Ne6 Na6 Qe4 Ne2+ Kf3 Nb8 g1R Ng3 Rh1 Na6 Bg6 Bh3 Be8 Qgf8 Bg6 Rg8 Ng7 h8Q Bf7 Qd8 Re6 Re8 Reg6 Re7 Rh6 Bg4+ Kg2 Ra7 Qf3 Qb8 Rg1 Qbg8 Rh1 Ne2 Kf1 Bh3+ Ke1 Bg1 Rhg6 Ng3 Re6 Ne4 Rh6 Ng3
5Q1R/1p4NN/qk3pP1/4n1pB/p2QN2N/1bKN3n/2QRBR1r/r4r2 b - - 0 1 illegal: No proof kernel
8/2BRpq1P/1B1n4/bR2k1bB/5rQQ/R2N2p1/NKQ2npp/4B1qB b - - 0 1 illegal: No proof kernel
1BQRK3/2P4q/b2pBR1n/N4N1R/6r1/1N1N1ppn/B1p4k/NqQ3b1 b - - 0 1 legal: proof: f4 a5 b4 b5 d4 h5 g4 e5 gxh5 exf4 a4 c5 axb5 a4 c4 a3 b6 Ra7 b5 Qe7 b7 Ra5 b6 Rb5 cxb5 c4 Qd2 Rh6 Qd1 Qc5 dxc5 Rh8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 e4+ Kg5 h4+ Kh6 e5 f5 e6 g5 e7 a2 e8B f3 Ne2 f2 Bf4 c3 Na3 Bd6 Nc1 Be7 Nc2 Nf6 Bh3 f1Q Nb3 Nh7 Bf7 Nf6 Qc1 Bd8 c6 Qd3 Kc5 Nd5 Kd6 Na6 b8R Qe3 b7 Nac7 b6 Kh7 h6 g4 h5 g3 Rb1 Rg8 Nca1 Kh8 h7 Kg7 h8N Kf6 h6 c2 h7 Qc3 Ng6 Qf3 h8N Qd3 Ne5 Ne6 Nhg6 Ng5 Nh4 Ne3+ Bd5 Qe4 Nd3 Ng4 Ra8 Rg7 b8Q Nh6 b7 Bb6 Qc7 Bg1 b8N Ba6 Qc8 Rg8 Kc7 Rg6 Kd8 Rg7 Bc7 f4 Bhe6 d6 Ke8 Qh7 Nf5 Kg6 Rh5 Nh3 Bb6 Kf6 c7 Rg4 Ba7 f3 Nc6 Kg6 Nca5 Kf6 Bb8 Kg6 Nbc5 Kf6 Rb4 Kg6 N1b3 a1Q Rf4 Qb1 Na1 Kf6 Ba2 Kg6 Rh4 Kg5 Ncb3 Nf2 Rh2 Nh3 Ng7 Kh4 Rf6 Bb7 Re2 Ba6 Re5 Ng5 Rb5 Kh3 Nf5 Kh2 Ne3 Nh3 Rh5 Qg7 Nf5 Qh7 Qb7 Re4 Ba7 Be3 Rd8 Rg4 Bb8 Bg1 Qc8
3R2Q1/N1NB2N1/1qPQ1K2/n2N2R1/2pNk3/p1R2BBq/bp1r2pq/3r4 b - - 0 1 legal: proof: b4 b5 f4 c5 a4 d5 c4 e5 cxd5 exf4 g4 h5 gxh5 c4 a5 Bc5 bxc5 Nd7 Nf3 Ba6 Ng1 Nb6 axb6 Bc8 Kf2 Kd7 Kf3 g5 Kg4 a5 Kf5 g4 e4 a4 d4 g3 h4 g2 e5 b4 d6 Kc6+ d7 Kd5 b7 a3 b8N f6 e6 b3 h6 f3 e7 f2 e8B b2 h5 Ba6 h7 Qe7 d8N Qb7 h6 Qc6 Bf4 Qd7+ Ne6 Bb7 Bg3 Qc8 Ne2 Qc7 Rh5 Qd7 Nc6 Qe7 Bd7 Qd6 Ng7 Ra5 Na7 Qb6 Rg5 Rb5 Kg6+ Ke4 d5 f5+ d6 f4 Nd4 f3 Be2 Ne7+ Kf6 Rd8 h8Q f1Q h7 f2 Qg8 Qg1 h8R Qh2 Rh3 f1Q+ Bf3+ Ke3 Rh8 Be4 Nc3 Qd3 Rc1 Nc6 Rc2 Na5 c6 Qd2 Rc1 Bb1 Nd5+ Kd3 Qa4 Ba2 Qb4 Qe3 Rc3+ Kd2 Bc8 Qd3 d7 Qdh7 Qd6 Q7h3 Rc1 Kd3 Rc2 Re8 d8N Re1 N8e6 Rd1 Bd7 Rd2 Nec7 Rc5 Bd1 Ke4 Rc3 Rb5 Qf7 Rb3 Rd8 Rb5 Qg8 Rb3 Rc1 Rbd3 B1g4 Rd1 Rc3 R3d2 Bf3+
q3bq1Q/R2Q1Bp1/1B4p1/1n2bB1p/4Q3/1KpNNr2/2P1QR1k/q2Q1R2 b - - 0 1 legal: proof: g4 b5 h4 a5 a4 e5 axb5 e4 g5 e3 g6 fxg6 dxe3 Ra7 e4 Rb7 e5 Be7 Be3 Bc5 Bc1 Bf8 f4 Ke7 f5 Na6 f6+ Ke6 f7 Rb6 Ra4 Nc5 Ra3 Ne4 Ra1 Ng5 hxg5 Ra6 Qd4 Kf5 Qd1 Rf6 gxf6 Ke6 Kd2 Kf5 Kc3 Kg4 e4+ Kg3 b4 d5 b6 c5 b5 h5 b7 d4+ Kb3 d3 b8Q d2 e6+ Qd6 e7 Ba6 e8Q Nh6 b6 Be7 f8R Ng4 f7 Bh4 e5 Rh7 e6 Nf6 b7 Bb5 e7 Bg5 Nc3 Rh6 Qbc8 Ba6 b8Q Ne4 Na2 Be3 Nh3 Nc3 Nf4 Rh8 Qa8 Bd4 Bh3 Nb5 Bf5 Be5 Rf1 Kh2 Qcd7 Bc8 Nb4 a4+ Kc4 a3 Kb3 a2 Ng2 Bb7 Nd3 Bc6 Qa4 Qb8 Qe4 Qa8 Ba3 Rg8 Bb4 Rh8 Ba5 Rg8 Bb6 c4+ Kb4 c3 Kb3 Qa5 Qee2 Qa7 Qa8 Qa5 Qab7 Qa8 e8B Rh8 Qdc7 Bd7 Qbe4 Bc6 Qd7 Rg8 Rb1 a1Q Rb2 Rh8 Ra2 Rg8 Ra7 Rh8 Qb1 d1Q Rf2 Qh1 Qbd1 Qd8 Rg8 Qf1 f8Q Qc8 Bf7 Qa8 Rf4 Qf2 Qfc8 Qc5 Rf1 Qd6 Re8 Rf8 Re6 Qe7 Rf6 Qc5 Bg4 Qe7 R6f2 Qf6 Bf5 Qd6 Qdc7 Be8 Q7d7 Qe7 Bg8 Rf6 Bf7 Qf8 Rc7 Qc5 B5e6 Rf3 Bf5 Qd6 Ra7 Qf6 B7e6 Bf7 Qh8 Be8 Bg8 Qd6 Bf7 Qf8 Ne3+
2kn1N2/P1B1K3/N1Rr2rp/b3pp1q/N5R1/2N4B/rQ1pB1NQ/2rR4 b - - 0 1 legal: proof: d4 a5 h4 d5 f4 c5 dxc5 g5 hxg5 e5 b4 axb4 f5 Be6 fxe6 Nc6 e4 d4 Rh3 Nce7 Rh1 Nd5 exd5 Rc8 Qg4 Rb8 Qd1 Ra8 Ke2 b5 Kd3 f6 Ke4 d3 Kf5 b3 g4 d2 a4 b2 c4 b4 a5 h6 d6 b3 d7+ Ke7 a6 Ra7 g6 Ra8 c6 Bg7 c5 Qb8 d8N Rh7 g5 Qb7 a7 Qb6 c7 Qb5 c8B Qb6 c6 Qc5 c7 Qe3 Qc2 Qb6 Nf3 Bh8 g7 Qf2 g6 Qe2 Ra6 Qh2 Ne1 Qg2 Nc3 b1R Qb2 Ke8 e7 Qe4+ Ke6 Qb4 Ng2 Qd4 Rc6 Qa4 Be2 Ra1 Rd1 Qg4+ Kd6 Qh4 Ne6 Qh5 Nf8 Ra2 Bh3 f5 c8N Rb8 Nb6 Rd8+ Ke6 Rd7 Nba4 Rd8 Qb1 b2 Qa1 b1R Ba3 Rd4 Bd6 Rc1 Bc7 Rg4 Kd6 Rd4+ Kc5 Rd6 Qb2 Nf6 g8Q Rg7 Qc4 Nd5 Qh4 Nf4 Qg3 Rg8 Qh2 Bf6 g7 Bh4 Ne6 Kd7 e8N Kc8 Nf8 Rh8 g8R Bd8 Rg4 Rg8 Nf6 Rg7 Nd5 Rgg6 Nb4 Ne6+ Kc4 Bg5 Na6 Nd8 Kc5 Be3+ Kc4 Bb6 Kb4 Ba5+ Kc5 Rdf6 Kd5 Ne6 Kd6 Nd8+ Ke7 Rd6 Qf4 Raa1 Qg3 Ra2 Qh2
rk4N1/1BR4N/4r2n/2Kp1Q1n/2p3BR/2nR1n1p/1Q2NRpP/3BRq2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 c6 axb5 Qd7 d4 Qe6 d6 Qa2 d7+ Kd8 d5 Qa3 Bf4 Qe3 Bd6 Qb6 Bc5 Kc7 d8N Kd7 d6 Ba6 Nb7 Ke6 d7 Kf5 Bd6 Kf6 Nd8 Bc8 f4 exd6 e4 Be7 Nb7 Ke6 e5 Bf6 Nd8+ Ke7 e6 Be5 fxe5 f5 Ra5 c5 Ra1 Bb7 g4 f4 Qd4 Be4 Qd1 Bf5 gxf5 Qc7 Bg2 Qb7 Bf1 Qb6 Ke2 a5 Kd3 h5 Kc4 g5 b4 a4 f6+ Kf8 f7 Ke7 f8R g4 Be2 f3 Qd3 h4 Nd2 h3 Re1 a3 Bd1 g3 Ne4 g2 Nf6 a2 Nf7 a1N d8R f2 Ne2 f1N Ng5 Nc2 Qf5 Rh5 Ngh7 Qb7 b6 Nd7 b5 Qc6 b7 Qc7 b8R Nb4 b6 Ra5 b7 Nh6 Ra8 Nf7 b8Q Ra2 Ra4 Nd5 Qb2 Rh6 Rc8 Qd8 Rc7 Nd2+ Kb5 Qe8 Ng8+ Kd8 Rh4 c4 Rhf1 Ra8 Rf3 Rg6 Rd3 Nh6 Rf6 Qf8 e7+ Ke8 Rf7 Nc3+ Kc6 d5+ Rf6 Nb6 Kc5 Nf3 Qg4 Nd4 Rff1 Qf2 Qf5 Qg1 Rf2 Re6 Rc6 Kd7 e8B+ Kd8 Bh5 Qf1 Bg4 Nf3 Rc7 Nd7+ Kb4 Rea6 e6 Nf6 Kc5 Nh5 e7+ Ke8 Ng1 Rf6 Ne2 Re6 Rc6 Kd7 e8B+ Kd8 Rc7 Nf7 Ra7 Kc8 Bc6 Nh6 Rd7 Nb1 Re7 Nc3 Bb7+ Kb8 Rc7
B2R3b/1p1K3b/Pp1n4/QNr4k/N1NN1b2/1b2pr2/pNQ2BR1/4QR2 b - - 0 1 illegal: Other
1NR2qB1/1b3B2/5n1k/R2rQ3/QQbQr3/1Nb2Q1R/n1q1Pr1n/1q2B1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 g4 Kf7 b4 Kg7 d4 h5 d6 c5 g6 a5 g5 a4 d5 f3 b6 a3 b7 h4 d7 h3 d6 h2 b5 f4 b6 a2 Bg2 c4 Nd2 c3 Nb3 c2 Bd2 c1Q Be1 Nc6 b8Q Qc3 b7 Ra5 Kf1 f2 Nf3 Rh6 Ne5 Rh4 Bd5 Qc2 Bf7 Nb4 Nc6 Nf6 Qd3 Re5 Qf3 Rd5 Kg2 Qe8 d8R Be6 d7 f1R Qe5 Bd6 b8Q Qf8 Qb7 Bc7 Rc8 Ba5 d8Q Rg4+ Qg3 Rf3 Nb8 Rf2+ Kh3 f3 Qc6 Qfc5 Qa4 Qf8 Qdd7 Re4+ Qg4 Rc5 Qdd4 Bc4 Qg2 Rd5 Qgg3 Kh8 g7+ Kh7 g8B+ Kg7 g6 Kh6 Rb1 a1Q g7 Qaa2 Ra1 Qab1 Ra3 Na2 Qb4 Bc7 Ra5 Bd6 Qa4 Bb4 Qg2 Bc3 Qg4 Rf1 Kg3 f2 Kg2 Qa1 Qf3 Qab1 Rg1 h1B+ Kh2 Bg2 Qb4 Bh3 Rg3 Bd7 Qa4 Bc6 Qb4 Bb7 Qa4 Rh1+ Kg2 Rh5 Rh3 f1N Kg1 Nh2 Bh7 Rhh4 g8Q Rh5 Qgg4 Rh4 Bhg8 Rh5 Rg3 Rf5 Qb4 Rff4 Qd7 Rf5 Qda4 Rff4 Qh1 Rf2 Qf3 Rf4 Rh3+ Rh4 Rg3 Re4 Rh3+
2NQ1Nbn/R2Kbr2/N5QB/2b1Q1q1/n4qR1/1P2r3/Br3Qq1/Q1Bk3n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 c5 g4 h5 f6 a5 f7 a4 d6 a3 b6 c4 b7 a2 d7 h3 Ke6 Kf4 d4+ Ke4 f4 h4 f5 c3 f6 c2 d5 h2 g5 h3 d6 Ra7 g6 Na6 b8N Nh6 Nd2+ Ke3 g7 Qc7 g8Q Nc5+ Kd5 e5 d8Q e4 d7 Na4 Ke6 Qf4 Ngf3 Bb7 Qc7 Bc5 d8Q Bd5+ Kd7 Bc4 f8Q Nf7 Rg1 h1N b3 h2 Nd4 Rh3 Rg4 Nh8 Qg5 Bg8 f7 Rg3 Ne6 Rg2 Qh5 Kf2 Bc4 e3 Bd3 e2 Nc4 e1R Na6 Re3 Qg6 Be7 Be4 Rb7 Qg1+ Ke2 Nb6 Qg5 Qf2+ Kd1 Qfg7 Bc5 f8B Ra7 Ba3+ c1Q Bb1 Qc4 Qe5 Qcf4 Bc1 Be7 Bh6 Bc5 Qh4 Rb2 Nf8 Rb7 Qa8 Be7 Nc8 Ra7 Kc6 Bc5 Qd8+ Rd7 Bd3 Rf7 Qf2 Be7 Rb1 a1B Kd7 Rc2 Qa7 Bd4 Ra1 Rb2 Bb1 Bdc5 Ba2 Ng3 Qh7 h1Q Qg6 Qg2 Qac7 Bcd6 Bb1 Rd2 Nb4 Nh1 Qcc3 Nb2 Ra7 Na4 Qa1 Rb2 Na6 Bc5 Ba2
1Nr3bN/2R2Q1n/6BP/1R2r1kq/3b1b2/Q2BB3/1qnKn2B/RQB3rq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 h4 Kf6 d4 a5 e4 g5 d6 c5 e5+ Kf5 h6 c4 d7 c3 h7 f6 e6 g4 h5 g3 h6 c2 d5 f3 e7 f2+ Kd2 a4 e8B a3 b6 g2 b7 a2 b5 Ra5 d6 Ne7 b6 Kg5 Bd3 f1R Nc3 f5 Nd5 f4 Nf6 f3 Ne2 g1B Nf4 f2 Beg6 Na6 b8B Ng8 b7 Qe8 d8B Nb4 d7 Re5 Bb6 Bd6 d8Q Be6 Nd7+ Nf6 Be3 Bg8 Qc7 Re1 Qa5 f1Q Qa3 Qf3 Rh4 Qh1 Bc7 Bf2 b8R Rg1 Rb5 Qf7 Nb8 Qe8 Rb1 a1Q Rh2 Qb2 Ra1 Bc5 Qf3 Bg3 Bd6 Bd4 Qb7 Bc4 Qf7 Rg8 h8Q Nh7 Qhg7 Rf8 Qb7 Bg8 Qe4 Qf7 Rf2 Qd5 Qf7 Rc8 Bc4 Bb6+ Ke2 Re6 Bf5 Qb1 Bb2 Kh4 Ng6+ Kh5 Rf1 Bh2 Qed3 c1N+ Kd2 Ne2 Rc1 Bd4 Nh8+ Kh4 Bg6 Qh5 Bdf4 Re5 Qdb3 Qa2 Bcd3 Qb1 Rc4 Nc2 Bc1 Qa2 Qb1 Qb2 Rc7 Kg4 Bg5 Bg3 Bh4 Bf4 Bg3 Kg5 Bh2
2NNn1k1/R2Qr1N1/1b3q2/nrrQbQ1P/3Nbnb1/1b6/NB1K1R2/1B2R3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 f5 d4 Kf7 e4 g5 h6 c5 h5 g4 e5 f3 h7 f2+ Kd2 a4 b6 f4 d6 g3 b5 g2 b7 f3 b6 a3 d7 c4 d5 a2 d6 Nf6 Bb2 Ra7 Ne2 g1N Nbc3 Nc6 b8N Na5 b7 Ne8 Nc6 Nh3 b8R Nf4 Ned4 Qf6 d8Q Bg4 d7 Bc5 Ne7 Bb6 Bd3 f1B Bb1 f2 Nc8 Bg2 Re1 f1B e6+ Kg7 e7 Be4 Rb7 Bfd3 Rf1 Bc2 Rf2 Bb3 Qc2 Rf8 h8Q+ Kf7 Qh6 Kg8 Qd3 Rf7 Qg6+ Rg7 Rc7 Rb7 Qf5 Rb8 Ra7 Rh7 Nce2 Rf7 Nc1 c3+ Ke3 c2 Kd2 Rg7 Qc7 Rb7 d8N Rg5 Qcd7 Rg7 Nce2 c1R Nc3 Rb8 Q3b5 Rf7 Qbd5 Rb7 Nce2 Rc5 Nc3 Rb8 Bd3 Rb7 Re1 a1B Na2 Rb8 Bb1 Rb7 N4e6 Rb8 Ba3 Be5 Bb2 Nc7 e8N Re7 N8g7 Ne8 Qc4 Bbc7 Qcd4 Rbb5 Q4d5 Bb6 Nd4+
3R1kb1/1Nqb4/r4r2/NnR2R1b/rQ2R1PN/b4QB1/Q1B5/1K1n1qbR b - - 0 1 illegal: No possible last move, all moves rejected
2K1QQQN/3Nb1Rb/B1nq1bb1/8/q3rP2/k3rbB1/n2RQ3/Q2rN1B1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 d4 h5 g5 a5 b6 c4 g6 c3 b7 c2 d6 e6 g7 a4 d7 a3 f6 a2 f7 h3 d5 h2 d6 h4 Ne2 h3 Rg1 h1B Be3 c1B Na3 h2 Nc2+ Ka4 b4 Ra5+ b5 Ne7 g8Q Nd5 b6 Be7 f8Q Bf3 Rg7 h1B Nf4 Rh4 Ne1+ Ka3 Ba6 Bb2+ Qd4 Bh5 Ng6 B1f3 Rd1 a1Q Nh8 Bg6 Rd2 Qd1 Qe8 Qa4 Qef8 Qc7 d8Q Bd7 Qde8 Nc3+ Bb5 Ra8 Ba6 Ra7 Qe4 Na2+ Bd4 Bb5 Qe2 Bbd3 Qf6 Qcc6 d7 Bh7 d8Q Bdg6 Qef8 Ra8 Qde8 Rh1 Kf4 Qd6+ Qfe5 Nc6 b8B Rh3 b7 Bc3 Bc7 Rd8 b8N Bb2 Nd7 Rh4+ Kg3 Re4 Kh3 Re3 Qa5 e5 Bb8 Bg2+ Kg4 e4 Bb6 Bbf6 f3 Qd4 Bg3 Qd6 f4 Bf3+ Kh3 Rc3 Bg1 e3 Qe5 Rc4 Qa1 Re4 Rc2 Rb8 Rb2 Rb3 Rd2 Bg2+ Kg4 Rb1 Rd5 Rd1 Rd2 Bf3+ Kh3 Qc2 Qb5 e2 Nb6 Be5 Nd3 Bg2+ Kg4 e1R Qbc4 R1e2 Ne1 R2e3 Qb5 Qb4 Qe2 Bc5 Kg5 Qca4 Kg4 Bf3+ Kg5 Bb8 Kf6 Be5+ Ke6 Bf6+ Kd7 Bce7 Kc8 Qd6 Nd7
1n1Nb1k1/1R6/b1P3NQ/1B2bN2/q2Rr2B/rB1nQ2n/nq5B/1R1K1n1B b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 e5 g4 h5 b4 a5 b6 d5 c5 h4 b5 h3 g6+ Kg7 b7 a4 b6 d3 f6+ Kh6 g7 Kh7 f7 d4 g5 a3 f5 a2 c6 h2 f6 e4 Nd2 e3 g6+ Kh6 Ne4 Ra3 Nd6 Ne7 g8B Nf5 g7 Ng3 Qb3 d2+ Kd1 Qe8 Nf3 Qe5 Bg2 Nf1 Rb1 a1Q Ng5 Be7 Rg1 h1N f8Q Qf4 f7 Qb2 Ne6 Bf6 Qc3 Be5 Nf5+ Kg6 Nd8 Rh4 Qd3 Bd7 Qc3 Be8 Bf3+ Kf6 Rg4 Qe4 Be2 Qf4 Bb5 Nf2+ Ke2 Nh3 Kd1 Qe4 Bh7 Qf4 g8B Qe4 Bg6 Qf4 Qh6 Qe4 Ke2 d1N+ Qd2 Qec2 f8N Qa4 Bb3 d3+ Ke1 e2 Qde3 Nc3 Rd4 Na2 Bh5+ Bg6 Bf3 Rf4 Bh1 Re4 Qh7 Be8 Ng6 Nd7 Qhh6 Nb8 Ne6 Kf7 Bd2 Na6 b8R Kg8 Rb7 Nb8 Bb4 Nf4 Be7 d2+ Kf2 d1B Ke1 Bc2 Bh4 Bd3 Nd8+ Bc4 Rf7 Nh3 b7 Na6 b8B Bd3 Bc7 Nb8 B5c4 Bf6 Bh2 Be5 Be6 Ba6 Bec4 Bd7 Bb5 Be8 Bc2 Ng3 Kd2 e1N Rb7 Nf1+ Kd1 Nd3 Bb3+
1r1qk1b1/1B2P1b1/2nQqRQ1/NNK2br1/B7/1QR3Q1/1rbR3n/B1bQ4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 g4 c5 e4 a5 b4 h5 d4 a4 g6 h4 d6 f3 Ke3 f2 g7 a3 d5 a2 b6 c4 Kd4 f4 b7 h3 g5 h2 b5 c3 d7+ Kf7 g6+ Ke7 d6+ Kf6 e5+ Ke6 b6 c2 Bb5 f1B Nc3 f3 Nge2 f2 Kc5 Rh6 Bb2 c1R Ba4 Qg5 d8Q Nc6 b8Q Bg2 b7 Rb1 Nb5 f1Q Nc1 Nf6 Nb3 Rh5 Na5 Qe2 Rf1 h1B Qbc7 Ng4 b8Q Bf3 Qbb7 Rb8 g8Q+ Kf5 g7 Kg6 Bd4 Bf5 e6 Rb2 Rc1 a1B Rc3 B3e4 e7 Bc2 d7 Qe6 Qa6 Bd5 Qg3 Qd2 Qdb6 Rg5 d8R Bdb3 Qbc7 Bd5 Qcd6 Nh2 Qb6 Bc4 Qh7+ Kf7 Rd7 B2d3 g8B+ Ke8 Be5 Bc2 Qg6+ Qf7 Rf2 Qd3 Rd2 Bh6 Ra7 Bd5 Ra6 Bg7 Qde6 Ba2 Qb3 Qd8 Qd6 Qg6 Be6 Qf7 Bc8 Qe6 Bd4 Rb1 Bb7 Bb2 Rf3 Bc1 Ba1 Rb2 Rc3 Qf6 Qb4 Bg8 Qb3 Qf8 Qg6+ Qf7 Qbc7 Ne5 Rf6 Nc6 Qh6 Qe6 Qcd6 Rc8 Qh7 Rb8 Qg6+
1QQn2q1/P3Q1R1/2QR2KN/R5n1/3NN3/Qq1kr3/Bb1Bq3/qrr2bq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 Kg5 Kd4 f4 b5 h4 e5+ f6 c5 a4 e4 d6 c4 h6 c3 f5 c2 h5 e3 a5 b3 d7 b4 h7 g6 h6 e2 a6 e1Q a7 b2 Nf3+ Ke4 d4 b3 d5 Qc7 d8Q Qb4 d6 Qe1 f7 Qc4 d7 Nf6 Ra5 Nc6 Rg1 Qee2 Qd6 Bg7 f8Q Rb8 Nd4 Qg8 Qd8e7+ Kd3 d8R Ba6 Nd2 b1Q Ne4 b2 Bd2 c1R Qa3+ Rb3 Rd6 Qa1 Qc8 Nd8 Qc6 b1Q Bg2 Rbc3 Bf3 Qbb3 Bg4 Nh5 f6 Nf4 f7 Bb5 f8Q Nh3+ Kh4 g5+ Kh5 Rb1 Kg6 Rcc1 Be6 g4 Qf5 g3 Qf4 Qbc3 Ba2 g2 Qg4 Ng5 Qgc8 Qcb3 Qb8 Qf8 Qbc8 Rg8 h8Q Ba6 h7 Bb5 Rf1 g1Q Rf7 Bf6+ Rg7 Qf7+ Kf5 Re8 Qg8 Qc4 h8N Be5 Qgf8 Qg8 Nf7 Bf6 Nh6 Ba6 Qec7 Re6 Kg6 Bc4 Nc3 Re3 Q7b8 Be5 Qe7 Bb5 Rf6 Ba6 Ne4 Bc4 Ne6 Bb2 Nd4 Bd5 Nd6 Bg2 Ne4 Bf1 Rd6
KN4n1/Q2qN2N/1QnqQ1N1/b1b2R1b/1rkB4/8/1P3bBN/R1qn1r1R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 a5 Ke4 h5 f4 c5 g4 e5 d4 c4 f6 c3 d6 Ke6 f5+ Kf7 Kd5 a4 d7 c2 g5 a3 b6 e4 b7 h3 Bg2 h2 Nc3 h4 Be3 c1B Nf3 h3 Qg1 Nc6 b8N a2 Bf2 Qb6 d8R e3 Re8 e2 Re5 Bc5 g6+ Kf8 f7 e1B Be3 Bcd2 Qf2 Kg7 f8N Kf6 g7 Ra4 Ng6 Rb4 Qg1 Kf7 f6 Bg4 Rf5 Rh4 Bf2 Bh5 Be3 Rf4 Qf2 Ke8 f7+ Kd8 f8N Kc7 Qg1 Bf2 Nh7 Qa6 Qd1 Kb6 Qa4 Qb5 Qa8 Qa6 Qa7+ Ka5 Rhg1 h1Q Nh2 Rf3 Rgc1 Qd1 Rcb1 Nh6 g8Q Qa4 Qe8 Ng8 Rh1 Rf4 Qe6 Bde1 Ne2 Kb5 Ne7 Rf3 Nf4 Bd2 Rad1 a1Q Nfg6 Qc1 Rdg1 Bb6 Kd6+ Bc5+ Kc7 Rf4 d5 Kc4 Bd4 Qad1 Ng4 h2 Re1 Qa3 Kc8 Qg3 Reg1 Rf3 Rf1 Qe5 d6+ Qd5 d7 Bde1 Qe3 Qd6 d8Q Bc3 Qdb6 Bd2 Rhg1 h1N Kb7 Qd7+ Ka8 Bc3 Bh8 Q1d6 Nh2 Bh4 Qaa5 Rb5 Be5 Qcd1 Qd8 Nf2 Qac7 Ba5 Qa7 Rb4 Bd4 Qc2 Ra1 Nd1 Qdb6 Rf1 Qe1 Qc1 Rh1 Bf2 Qe6+
1N1qB1Br/2B1rNQ1/2K2bn1/2N2r2/1b2r1q1/1bn2P2/n3RNk1/2N1QRQ1 b - - 0 1 illegal: No possible last move
1k1n2Bq/2r1q2b/b6Q/3KNB1B/2r3RN/B3PrnQ/4Rb1B/Nb1Q3q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 b4 Kc7 g4 h5 d4 c4 g6 a4 d6+ Kb7 g5 f5+ Kd5 h4 d7 c3 g7 h3 g6 a3 b6 f3 e3 f2 b5 a2 Ba3 h2 Be2 f1R Nd2 c2 Nb3 c1Q Nf3 f4 Nh4 f3 Rg1 h1B Rg4 Qe8 d8Q Ra7 Qf6 Nh6 g8B Be7 g7 Bf5 Bh7 Bb1 g8B Nf5 Qh6 Ng3 Bf5 Rf2 Qf1 Nc6 Qh3 Kb8 b7 Nd8 Bd1 Rf1 Be2 f2+ Bf3 Kc7 b8N Bf6 Nc6 Qe7 Ne5 Kb8 b6 Rc7 b7 Rc4 B3e4 Rh7 Bg6 Bf3 Bh5 Bd1 Bd3 Bdc2 Bf5 Rf7 Be6 Bh7 Bf5 Bd3 Rb1 a1Q Rb2 Bb1 Re2 Qcc3 Bb4 Qa8 Ba3 Bg5 Na1 Rc1 Bfg6 Rf3 Bf5 f1B Nc6+ Kc7 b8B+ Kb7 Ne5 Rc7 Rd2 Ba6 Re2 Rc4 Bc7 Qe1 Bcd6 Qh1 Nc2 Rc6 Ng2 Rc7 Nd7 Nc6 Bge6 Bg8 Na1 Ne4 Bh2 Rf4 Ne5 Bh7 Bef7 Qh8 Bg8 Qb4 Ke6 Rf3 d5 Bh4 d6 Rc4 d7 Bf2 d8Q Ng3 Qd7 Kb8 Qd1 Qe7+ Kd5 Nd8 Nh4
1RQ2Nbn/nn2NQ2/brB5/1kqQBQ1R/3qP1Kn/2R5/Bq6/r2Qb3 b - - 0 1 illegal: No possible last move, all moves rejected
3bBn2/rNQb1q2/5R1B/q3N3/2PB1BRk/q2B3n/N3q1rr/nK1QQ3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 d5 c4 h5 Kc2 e5 f4 a5 g4 e4 f6 Kg6 f5+ Kf7 b6 e3 b7 a4 b5 e2 b6 e1R Be3 a3 Nf3 a2 Rh3 h4 Nc3 Be7 Bd3 Be6 Rg3 Nd7 b8B h3 b7 h2 Bbf4 h1Q b8Q Nh6 Qc7 Qh3 Rb1 Rh1 Rb6 a1N+ Kb1 Rg8 Na2 Rh2 Bf2 Ra7 g6+ Ke8 g7 Kf7 g5 Ng4 Bg1 Nf2 Rd6 Nf8 g6+ Ke8 Qe1 Bd7 Ne5 Qa8 Ra6 Bd8 f7+ Ke7 Rf6 Qf1 Qd1 Nh3 Bf2 Qe1 B2e3 Qa5 Qe1 Rh8 g8B Rg2 g7 Rh5 Bh7 Rh4 g8Q Qa3 Be4 d3 Bd4 d2 Bd3 Rh5 Bg6 d1Q+ Bc1 Qf3 Bf4 Rh7 Bh5 Rh6 Qg4 Qf2 Qgd1 Qf3 Bc3 d4 Bb2 Qad5 Bg6 Qda5 Bc3 Nh7 f8N Qfd5 Ne6 Nf8 Nc5 Qf7 Nb7 Rh5 Bf1 d3 Bd4 d2 Bd3 Rh7 Qc1 d1Q Bh5 Qe2 Qcd1 Qg8 Be8 Rh6 Rfg6 Rh7 f6+ Ke6 f7+ Ke7 R6g4 Kf6 Rf3 Qg6 Rgg3 Qf5 Ng4+ Kg6 Ne5+ Kh5 Rf2 Kh4 Rf1 Ng6 f8B Qf7 B8h6 Rh8 Bc1 Nf8 Rf6 Rf2 Bcf4 Rg8 Re3 Rg2 Rf3 Rh2 Rg3 Rfg2 Rg4+
4Q1q1/2BNRRQ1/Kb1rN1n1/1nB5/P1kN2R1/r3nr1N/B2rb2q/N2q4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 g5 f4 b6 a4 e4 d4 c4 h4 e3 d6 b3 d5 c3 d7 g4 d6 e2 f6 Ke6 f7 e1R h6 g3 h7 c2 h5 b2 h6 g2 Qg4+ Kd5 f5 Re3 f6 Nc6 Na3 b1N Nh3 g1Q Qg7 Qh2 Rg1 Na5 Rg4 Rf3 Be3 c1R Nc2 Ne7 Bc5 Ng6 Ra2 Rg8 h8Q Rd1 h7 Rd2 Na1 Nc4 Bg2 Be7 f8R Ra6 f7 Ne3 Re8 Bf6 f8N Bd4 Re7 Qe8 Ne6 Qf8 d8N Na3+ Kb4 b5 d7 Rc6 Ka5 Rd6 Nc6 b4 d8B b3 Bc7 b2 Kb6 Bd7 Ka6 b1Q Rb2 Qe8 Rb7 Qd1 Bf1 Rgf8 Qhg8 Bc8 h8N Nb5 Nf7 Rg3 Ne5 Rff3 Q8f7 Qg8 Qe8 Bd7 Bd3 Bc8 Bb1 Bd7 Ba7 Bb6 Ncd4 Bc6 Nd7 Kc4 Rf7 Be4 Re7 Bd3 Rf7 Be2 Re7 Ba5+ Bab6 Rd5 Bc5 Bb6 Rf7 Rd6 Ba2+ Qb3 Qc8 Nd1 Bb8 Rfd3 Ndf8 Rgf3 Rbe7 Ne3 Nd7 Rc3 Qe8 Rcd3 Bb1 Qd1 Bc7 Ra3 Ba2+
1bK5/k1BQ1rNR/1RN1b3/Pn1q1b1Q/B3q1q1/2N3nr/qQ4Qn/2B3Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 Kb6 d4 g5 h4 c4 f4 e6 a4 c3 h6 b3 d6 b2 h5 g4 f6 g3 a5+ Ka7 d7 b5 f5 b4 d5 c2 f7 b3 h7 g2 f6 Bc5 f8Q Kb7 f7 Ra7 d6 Na6 h6 Nf6 Nf3 g1Q Bb5 Qg4 Qg7 Nc7 Nc3 b1Q f8N b2 Qg1 Qa2 Nd4 b1B Ba4 Nb5 Nc6 Ne4 Qg6 Ng3 Qg2 Qe8 d8Q Qd7 Kf6 e5 Ne6 e4 Ng7 e3 Qg5 Qe8 d7 e2 Qe3 e1N Qeg1 Be3 Qe7 Bb6 d8B+ Bc7 Qd7 Qee4 Rh3 Qed5 Ke7 Nf3 Rh4 Ka6 Rh2 Bb8 Bc7 Rb7 Rh4 Nh2 Rh5 Rf8 h8Q Rf3 Kd8 Qde4 h7 Qad5 Qd6 Be6 Qd7 Rf7 Kc8 Ra7 Bh6 c1Q Ra3 Qce3 Rb3 Qf2 Bc1 Qa2 Qe8 Rf3 h8Q Rd3 Rh7 Rb7 Nd4 Ka7 Qh5 Rf3 Qf8 Rf7 Qa3 Rb6 Qab2 Rc6 Nd1 Rc3 Nc6+ Ka6 Qbd2 Qb4 Kd8 Nd4 Qge3 Ngf5 Qef2 Rh3 Qde1 Ng3 Qb2 Bbf5 Nc3 Qbc4 Rb7 Nb5 Kc8 Qce4 Qeg1 Bg6 Nd4 Bgf5 Rb6+ Ka7 Nc6+
2Qnqb1b/bN3n2/1P4k1/qrN1Qb1q/2Br4/Q1R1R2Q/r2RBB2/2Q4K b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 Kf2 h5 g4 e5 Kg2 a5 d4 e4 b6 e3 d6 c4 d5 e2 b7 e1B g5 a4 f6 a3 d7 c3 d6 c2 b5 a2 f5 Bh6 b6 Rh7 g6+ Kf8 g7+ Kf7 Nf3 Rh8 Be3 c1B Nfd2 Ra4 Be2 Rc4 Bf2 Qe8 d8R Be6 d7 Bb2 Nc3 Nc6 b8Q Rd4 Rc1 a1R Rh3 Ra2 Re3 h3+ Kh1 h4 Nce4 h2 Nc4 Bf4 Qc2 Nh6 Qe5 Bb4 Na5 Bf8 Nc5 Rg8 Nab7 Ba1 Qee4 Bb8 Qe5 Ba7 Qb1 Bc3 Rc2 Rh8 Qc1 Ba1 Rc8 Bb2 d8Q Bd7 Qdc7 Nd8 Qg3 Bc3 Qce5 Be6 Kg2 Ba1 Rd2 h3+ Kf3 h1Q+ Qg2 Kg8 f7+ Kh7 f6 h2 Rc6 Qg1 Qh3 Qe1 Kg2 Kg6 g8B Bf5 Rc7 Bg7 f8Q Nhf7 Qfe7 Rh5 Q7e6 Bf8 Qc8 Nd6 Bgc4 N6f7 Rb2 Qa5 Rd2 Nd6 f7 h1Q+ Kg3 Qf3+ Kh2 Rg5 Rc6 Qh5 Rc7 Be7 f8Q N6f7 Kh1 Bb2 Qfh8 Bf8 Qg3 Ba1 Qhe5 Rgg4 Ba6 Be4+ Rf3 Bf5 Ne4 Rb4 Qe7 Bh8 Qge5 Rbb2 Rcc3 Rf4 Bac4 Rb3 Rfe3 Rb5 Qea3 Rh4 Nec5 Re4 Qcc7 Rd4 Qc8
1B1bR3/B1nB2QN/P3q1q1/2n1B2k/2n1BK2/1q2R1Qb/b3r1Nr/1Q3n1N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 b5 a4 e5 g4 c5 d4 h5 f6 Kg6 a5 b3 f7 h4 a6 h3 d6 c4 d7 h2 d5 c3 d6 b2 Bg2 c2 Na3 b1B Nc4 b4 Bf4 c1N Nh3 b3 Ra3 b2 Re3 Ra7 Rhe1 Qf6 d8B h1Q d7 Ba3 f8Q Rh7 Bb6 Qg7 d8B Qg1 Bdc7 Nc6 Bb8 Re7 B6a7 e4+ Kg3 Be6 Bfe5 Qh6 f4 Nf6 Nf2 Nd5 Nh1 Na5 Qc2 Ba2 Qb1 Nd3 R1e2 Rh8 f5+ Kh7 f6 Kg6 f7 Nc5 Re1 Nc7 Kf4 Bb4 R1e2 Qd1 Bf3 Rh7 Qh8 Qb3 f8N+ Kf7 Re1 Qg6 Bg2 Rh2 Nh7 Rd7 Bf3 Rdd2 Bg2 Re2 Bf3 Ncb7 Bg2 Be7 Qg7+ Ke8 Bf3 Bd8 Bg2 Nc5 Bh3 Qh5 g6 Qh6+ g5 Bc8 Nd2 Nc4 Nf3 Qh5 Bg2 Bh3 Nh4 Qh6 Bf3 Qh5 Ng2 Qh6 Qc2 b1N Qd1 Nbd2 Qb1 Nf1 Bg4 Bf6 Bd7+ Kd8 Qg8+ Ke7 g7 Qg6 Qh8 Kf7 g8B+ Ke7 Bg4 Ke8 Qg7 Bd8 Bf7+ Ke7 Bd5+ Ke8 Rg3 e3 Be4 Rb2 Rf3 e2 Re3 Rc2 Qh6 Kf7 Bd7 Rb2 Qh4 Rc2 Qg3 Rd2 Rd1 e1Q Rc1 Qe2 Re1 Qeh5 R1e2 Qe6 Re1 Re2 g6+ Ke7 g7 Kf7 Nf6 Qg6 g8Q+ Ke7 Qh7+ Kf8 Qh6+ Kf7 Qhg5 Kg7 Q5g4 Kh6 Nh7 Qge8 Qg7+ Kh5 Rd1 Q8g6 Rd6 Qd5 Re6 Qc6 Re7 Qce6 Re8
1n2QB1N/1NP1N3/2nq1bbR/b3kqQN/1r2B1q1/Knq5/1QN5/R2rR3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 Kf6 f4 g5 c4 e5 Kc2 a5 Kb3 d5 b6 d3 c5 g4 c6 g3 b7 d4 c7 g2 h6 e4 h5 d2 h7 e3 h6 e2 Na3 e1B Nc2 d3 Nh3 g1N Qh5 d1Q Qg5+ Kf7 f6 Ke6 f5+ Ke5 f7 d2 f6+ Ke4 Bd3+ Kf3 Nf4 Bf5 Nh5 Bg7 f8N a4+ Ka3 Qd5 b4 Ne7 f7 Nec6 b5 Bf6 b6 Bg6 Ne6 Ne2 f8N Qf5 Nd8 Ned4 Bb2 Rg8 h8R Nb3 h7 Qe2 Be5 d1Q Bd6 Ba5 Re1 Rg7 Bb4 Rd7 Bc5 Rd4 Be7 Rb4 Be4+ Kf2 Bd6 Qeg4 Be7 Nd7 b8Q Qd6 Qc8 Ndb8 b7 Ra6 Qd7 Rab6 Qe8 R6b5 Nfe6 Rd5 Neg7 Rd3 Bf8 Rd1 Nf4 Kg3 Nd5 Qdd7 Ne7 Qd6 Qh4+ Kf4 Nh5+ Ke5 Qg5 Nd7 Ka2 a3 b8Q Rd5 Qb6 Ndb8 Nb7 Rdd4 Kb1 a2+ Kb2 Rd1 Ka3 Nd7 Rg8 Ndb8 h8N Qd5 Rg7 Qc5 Rh7 Qd6 Rh6 Nd8 Rb1 Ndc6 Rb2 a1Q+ Ra2 Qc3 Ra1 Bg7 Qf2 Bf6 Qfd2 Ncd4 Qc1 Ndc6 Qb2
N1N1KBbB/QP1BnRq1/1q6/bBk5/2N2r2/1r1n1rQR/Bb4Q1/q3b3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 h5 g4 a5 b4 f6 g6 f3 g7 c4 b6 f2 b5 c3 b7 a4 b6 a3 g5 c2 g6 h4 Nf3 a2 Qd2 h3 Na3 h2 Nc4+ Ke7 d6+ Ke6 d7 Bc5 d5+ Ke7 Kf5 Ra6 e4 Ra3 e5 Rh3 e6 Ra7 Nd4 Rh8 Nb5 Rh6 Bb2 c1B Nbd6 Na6 b8Q Rh3 b7 Qb6 d8N Rb3 Qe1 Ra8 Qa7 Bb4 Qe5 Bh6 Qg3 Ba5 Bd3 Bg5 Raf1 a1B Be5 Bh4 Bb2 Bd7 Nc8+ Ke8 d6 Nc5 Be2 Nd3 Be5 Bb5 e7 Kd7 Ne6 Kc6 d7 Bb2 Nc7 Kc5 e8B Rb8 d8B Ne7+ Ke4 Bd7 g8Q Be6 g7 Bf7 Bd7 f5+ Ke3 f4+ Ke4 f3 Na8 Nc6 Bg5 Ne7 Bh6 Be6 Qf8 Bf7 g8B Be6 Bh8 Bf7 Rhg1 h1Q Qfg7 Qg2 Rh1 Be6 Rh3 Bf7 N8d6 Rf8 Nc8 Be6 Q7g4 Rf5 Bf8 Rf7 Rg1 f1Q Qg7 Qc1 Rf1 Qa1 Q7g4 Qg1 Qg2 Bhe1 Q4g3 Nc1 Bd3 f2 Be2 Rff3 Bf7 Rfc3 Ke5 Nd3+ Kf6 Bd5+ N4d6 Bc4 Bfe6 Bd5 Kf7 Rc4 Ke8 Rf4 Nc4 Rf3 Bb5 Rf4 Bed7 Bg8 Bd1 Rf3 Bc2 Rf4 Bb1 Rf3 Qgb8 Rf4 Ba2 Rf3 Qgh2 Qg7 Qbg3 Rf4 Qhg2 Rf3 Rfh1 f1R Rh7 Rf4 R1h4 R1f3 Rh3 Qf6 Rf7 Qg6 Qh4 Qg7 Qhg3
2N1b2b/1P2rn1K/B2B1b1R/4r2q/2N3R1/r1BQnR1Q/q4BN1/B3rk1q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 b4+ Kb6 f4 e5 g4 a5 d4 c5 f6 h5 d6 a4 f7 a3 g5 h3 d7 c4 Kf5 h4 Kg6 c3 d5 a2 d6 e4 f5 c2 f6 h2 Nh3 e3 Na3 e2 Be3+ Kb7 b6 Ka6 b5+ Ka5 b7 Kb4 b6 Kc3 Nf4 c1Q Nc4 e1R Qg4 h3 Bf2 Be7 f8R Re5 f7 Qb2 Ng2 Nc6 b8B Ra3 b7 Qe8 d8Q Nd4 d7 Bf6 Bd6 Nh6 Rb1 Qe2 Rb4 Kd3 Qh4 Rg8+ Kh7 a1B g6 Ndf5 g7 Ne3 Ra4 Qe6 Bb4 Qg4 Bc3 Qh5 Qg4 Kc2 Qf5+ Kd1 Qd3+ Qd2 Qc7 Bb2 d8B Bd7 Qc8 Be8 Be7 Ba1 Bd6 Re7 Rg1 h1Q Ra6 h2 Qh3 Bb2 Bde5 Bc1 Ba1 Bb2 Bc3 Bc6 Rb8 Rge8 g8N Re5 Rc8 R8e7 Rf8 Be8 Re6 Rd7 Ne7 Bh8 Nc8 Re7 Qe4 Qc2 Rf6 Qa4 Rf3 Qb3 Rg8 Qa2 Rg6 Bf6 Nf4 Bh8 R1g4 Bf6 Ng2 Bh8 Bd3 Bf6 Bc2+ Ke2 Ba4 Kf1 Bb5 R7e6 f8B Nf7+ Rh6 Re7 Qd4 Bh8 Ba5 Re4 Qd2 Rc7 Bd6 Rce7 Ba6 Bbf6 B5c3 R4e5 Qd4 Qg1 Bc5 h1R Bcb2 Ke2 Bb4 Qh2 Qd5 Re1 B2c3 Kf1 Bd6 Qh1 Qd3+
k3RbRr/n2R2Nq/rQ2N2r/1b2Qr2/3B1brn/Q1K4b/R2R1N1P/7B b - - 0 1 illegal: No possible last move
N1NQR3/k1n3Qn/1b6/2br2nR/4n1n1/B2B1NN1/b1b2PR1/Q1K1N1rq b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 c5 b4 Kc7 g4 Kb6 g5 a5 d6 h5 d7 e5 d5 h3 f6 h4 f7 h2 d6 h3 g6 a4 g7 e4 Qe2 e3+ Kd1 a3 Qe1 e2+ Kd2 a2 Qd1 e1N Nc3 c4 Bd3 Nf6 g8N Nh7 Ne4 Na6 Ng3 Nc7 Ne7 Ra5 Ba3 c3+ Kc1 c2 Nf3 Rg8 Rg1 h1B Rg2 Qe8 d8Q h2 d7 Ka7 Rb1 a1N b6+ Ka8 b7+ Ka7 b8R Rd5 b5 Bb7 Ng6 Bc5 f8Q Qe4 Ne7 Qh4 Qg7 Qh6+ Nd2 Nf3 Rb2 Nfg5 Nf3 Qh3 Ne1 Bb6 Rb4 Qh5 Rh4 Qf3 Kb2 c1B+ Kb1 Bb2 Rh5 B2d4 Kc1 Bdc5 Qa4+ Ba6 Qad4 Nc2 Qa1 Ne3 Rc8 Kb7 Ra8 Ng4 Nc8 Ba7 b6 Bc4 Rb8+ Ka6 b7 Bab6 Qdf8 Qe4 d8N Qf3 Ne6 Qe4 Bc2 Ba2 Nd4 Qf3 Qd8 Qe4 Ne7 Ka7 Bd3 Qf3 Rc8 Qe4 b8N Qf3 Rg1 Bg2 Na6 h1N Rb8 Bh3 Rg2 Qe4 Nge2 Ng3 Rc8 Qf3 Rb8 N3e4 Ng3 Qf6 Ndf3 Qh6 Rg1 Bf1 Rg2 Be2 Rc8 Bd1 Rb8 Bc2 Rc8 Nb5 Nc7 Qc6 Na8 Nc7 Qd6 Qb7 Re8 Qc6 Qd7 Qh6 Rh1 Qh2 Qd8 Qg1 Rh3 Qh1 Nc8+ Kb7 Rgh2 Ngf6 Qgd7 Ne6 Nf1 Rg1 Rg2 Ng4 Rh5 N6g5 Qdg7 Kb8 Ng3 Kb7 Nd6+ Ka7 Nc8+
1Bkr1Nb1/2nRbb1q/2B1n1R1/4B2b/R5QR/2P1n1br/3K2nQ/2R1N2N b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 d5 h4 Kd7 b4 e5 f6 g5 b6 a5 f7 e4 b7 d3 b5 e3 c3 e2 h6 d4 h5 a4 h7 g4 h6 d2+ Kf2 e1N Ke2 a3 b6 g3 f5 a2 f6 g2 Nh3 g1B Bg2 Bh2 Na3 Be7 f8R Na6 b8B Qc7 b7 Nc5 f7 Ne6 Nc2 Nf6 Rg8 Nd5 Nf2 Bg3 f8N+ Kd8 Bf3 Ng2 Ne1 Bd7 Be4 Be8 Rg6 Bf7 Rg1 Qd7 Nh1 Ndc7 Bc6 Bg8 Qa4 d1B+ Kd2 d3 Qg4 Bb3 Ba3 Bd5 Bd6 Bc4 Rc1 a1N Be5 Nc2 Rf1 Ba2 Rf4 Nce3 Ra4 Bf7 Ba7 Rc8 b8R Bc4 Rb7 Ra8 Bb8 Kc8 Rg5 Bd5 Ng6 Rd8 Nf8 Ra5 Rg6 Bc4 Bd6 Rh5 h8Q Rh3 h7 Bg8 Rb5 Ng5 Rc5 Rh2 Qf3 Qg4 Be5 Bcf7 Rd5 Nge6 Rd7 Rh6 Qf5 Qh5 Qh3 Qh4 Qh2 Rh5 Qf6 Rh6 h8R Qh5 Qf4 Qf5 Rg7 Rh3 Rh4 Qh7 Qb4 Ned5 Kd1 d2 Ke2 d1B+ Kd2 Nde3 Rg6 Bh5 Qg4
R2bK2k/2R2nQ1/rnB1N3/1B1N4/3bP1RB/3b2rn/2bRR1N1/1Q1n2qn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 Kf7 g4 Kg7 d4 a5 b4 h4 e4 a4 d6 h3 d7 f3 Ke6 c4 d5 h2 g6 f2 d6 c3 b6 c2 b5 f4 b7 f3 g5 a3 b6 a2 Nc3 Rh5 Bb5 f1B Nge2 f2 Nf4 Be2 Rg1 h1N Ncd5 f1N Rg4 Bf3 Ng2 Na6 b8R Ne3 b7 Kh8 Kf7 Qb6 d8N Nc7 d7 Rh3 Ne6 Ra6 d8R Rg3 Ra8 Be7 b8R Bf6 Rd7 Bd8 Rb7 Nh6+ Kf8 Nf7 g7+ Kh7 g8B+ Kh8 Qe1 Nd1 g6 Qg1 Bg5 c1N Bh4 Nd3 Rb1 a1B Rb2 N3f2 Re2 Bd4 Rd6 Ne8 Rc7 Nf6 Qf1 Nd7+ Ke8 Nb6 Qe1 Nc3 Qb1 Nh3 Bc6 Ra2 Bb5 Ba6 Bc6 Bd3 Rdd7 Ne5 Bf7 Nd1 g7+ Kh7 Bh5 Ra6 Bb5 Nf7 g8Q+ Kh6 Qf8+ Kh7 Rb8 Bb2 Ne7 Nfg5 Ra8 Ndf2 Rec2 Bd1 Re2 Bc4 Rdd2 Bd3 Nd5+ Bg7 Qf6 Kh8 Qc3 Be5 Kf8 B1c2 Bhe8 Nf7 Bec6 Nd1 Ke8 Bg7 Qe5 Bgf6 Qg5 Bd4 Qg7+
nb2Q2n/1q1nk3/2bb3B/1BRR4/2PN1N2/2RR1n1B/Q1r1r2Q/KnR3b1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 e5 f4 h5 g4 d5 c4 a5 Kc2 a4 b4 d3+ Kb2 h4 b6 h3 b7 d2 g6 h2 g7 d4 g5 e4 b5 d3 b6 e3 g6 e2 f6 e1B f7+ Ke7 f5 Qd7 Qc2 Bg3 Bh3 Nh6 Ra3 d1N+ Ka1 d2 g8Q Ne3 g7 d1N Rd3 a3 Nc3 a2 Nf3 Nd5 Ne2 N1c3 Nfd4 Nc7 Nf4 Nb1 Bd2 Ra5 Rc1 h1N Be3 Na8 f6+ Kd8 Qh7 Re5 g8B Bd6 f8Q+ Re8 f7 Nf2 Rc3 Nfg4 Qh2 Bf2 Qc2 Ne5 Bh7 Rg8 Be4 Bg1 Bc6 Nf3 Bb5 Rg2 Qh8 Qc7 f8R Bd7 Rf5 Bc6 Rc5 Nd7 b8R+ Ke7 b7 Nf7 Rd8 Rf2 b8R Qb7 Qh5 Nh8 Rbc8 Re2 Rd5 Rg8 Bd2 Rgg2 Qe8+ Kf6 Kb2 a1B+ Ka2 Bb2 Be3 Bba3 Ka1 Bb8 Qa2 Be7 Nfe6 Bed6 Bh6 Rc2 Nf4 Rge2 Re5 Be4 Rcc5 Bc6 Red5 Bdc7 Re5 Ndb6 Ree3 Be5 Qh5 Ke7 Rdd5 Nd7 Red3 Bed6 Qe8+
nRqQ3K/2Br1B1P/3NQB1n/B1Bn4/Nrn5/4NQ2/2n2bn1/kbq1R3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 c5 d4 a5 h4 g5 d6 c4 f6 g3 d5 a4 f5 c3 b6 g2 f7 c2 b7 Kb3 f6 a3 d7 g4 h5 e6 d6 g3 h6 a2 h7 Qb6 d8N Qa7 d7 Bc5 f8B Qa6 f7 Qc4 Bg5 Nh6 Kf6 e5 Kg7 e4 Ne2 g1N Qd5 e3 Na3 g2 Rb1 a1N Nc3 c1Q Nc2 e2 Na4 Ka2 b4 e1N b5 Ra7 b6 Na6 b8Q Nc7 Nb7 Ne2 d8B g1N Rb4 Bf2 Ne3 Ngf3 Rb3 Qh4 Bc5 Ne5 f8Q Na8 Qff3 Bf5 Bgf6 Nf4 Bc4 Neg2 Re1 Qh3 Qf7 Bb1 Nd6 Qe6 b7 Nc2 Ba5 Ka1 Rb2 Re8 Qd8 Qc8 b8B Rd7 Bbc7 Ree7 Be6 Nd5 Kh8 Re8+ Qg8 Ree7 Qge8 Rg7 Rb8 Rg4 Bf7 Rb4 Nc3 Nc4 Qe6 Rb3 Na4+ Rb2 Bg5 Rb4 Bf6+
RKB1N2k/rB6/Q2Rr1Q1/5Bnr/1N5b/3b1P2/bn1qR1nr/1NB2nB1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 Kg7 Kd4 a5 Kc5 h5 g4 e5+ d6 a4 d4 a3 b4 e3 g6 c6 d5 e4 b6 h4 b7 h3 g5 a2 b5 h2 f3 e2 b6 e1R Ne2 e3 Bh3 Be7 Nec3 e2 Bf5 Ra5+ Nb5 Rf1 Qd3 Ra6 Nc7 Rh5 Ne8+ Kh8 Qe4 Rf2 Re1 Bf6 d7 h1B Kd6 c5 Qe6 Nc6 b8B c4 b7 c3 Ba7 c2 b8Q Rb6 Qb7 Nge7 Qa6 Rfh2 Qe4 Bg2 g7+ Kg8 Qg4 Bf1 Qg2 Rb4 Bg1 Ne5 Qg3 Re4 Qg4 Qa5 d8N Be6 Nc6 Qd2 Kc7 Nf7 d6 Nd5+ Kb8 Ne3 d7 Bb3 d8R Re6 Rd6 Bd8 Rd1 e1N Nb4 N1g2 Re1 Bd3 Re2 Nf1 Qe4 Re5 Bc8 Re6 Qec6 Kh7 g8B+ Kh8 g6 Bh4 Qcb6 Ng5 Bb7 Rf6 Be6 Bbc4 Bec8 Re6 Ba3 c1N g7+ Kh7 g8B+ Kh8 Bh7 Bd5 Bf5 Bb3 Nc3 Bbc4 Rb1 a1R Bb2 Ra4 Ra1 Ba2 Ba3 Ra5 Nb1 Ra4 Qc4 Ra7 Qca6 Nb3 Bc1 Na5 Qc7 Nc4 Qf7 Nb2 Qg6 Bb3 Ra4 Ba2 Bbe4 Rd7 Beb7 Rg7 Qc6 Rge7 Ra8 Rf7 Qa6 Rd7 Bd5 Ra7 Bdb7
q1bn2RQ/5R1K/k5Q1/1N1RB1bN/rRB1B3/2Qb1rqR/6Pq/1q4bn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 e4 h5 d4 c5 b4 Kc7 g6 Kb7 g7 a5 b6 c4 e5 c3 b5 a4 d6 c2 e6 a3 d7 h4 e7 h3 e8Q h2 d5 a2 d6 Na6 Bb2 c1Q Nc3 Ra7 Qc2 Nc7 Bc4 Qb1 Qg6 Nh6 g8B Ng4 Bh7 Bh6 Nge2 Bg5 Ng3 Ra4 Nh5 Rf8 Rf1 Qe8 d8R h1Q d7 Ne6 Qb3 Qh2 Qb4 Ka8 b7+ Ka7 b8R Nf2 Ra8+ Kb7 b6 Nh1 Nb5 Rf7 Rb8+ Ka6 b7 Qe1 Rb1 a1B Be5 Bd4 Rb3 Bg1 Qc3 Qh8 Rg8 Qeg3+ Ke2 f3+ Kd3 f4 Ke4 f2 d8R f3 Rd5 Bf6 Kf5 Nd8+ Rd7 Rf8 Rd1 f1Q Rd5 f2 Rb4 Ne6 Rf7 Bg5 Rb3 Qe1 Rb4 f1B Ra8+ Ba7 b8Q Be2 Qh6 Qeg1 Kg6 Nd8 Qd6+ Qb6 Rb8 Bf1 Rbb7 Be2 Rf3 Rf5 Rf7 Bd3 Qf6 Qgh4 Rh3 Q4g3 Rgg7 Qe8 Rg8 Rf3+ Kg7 Qec6 Be4 Qa8 Qf5 Qg6+ Kh8 Bg1 Qf8 Qd6 Kh7 Qe1 Qg6 Qb1 Qfg7 Qg3 Qh8 Qh2 Bf6 Qdg3 Be5+
2Kbb2Q/q4N2/2R4n/qN3Nb1/bn3QBB/NR6/3Q1Pn1/n2rkrNR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 b4 h5 g4 a5 d6 a4 b6 h3 b5 h4 d7 c4 Ke6 Kf4 g5 c3 b7 c2 g6 a3 f6 h2 f7 h3 b6 a2 g7 Na6 b8N Nh6 g8Q Nb4 b7 Qa5 d4+ Ke4 Be3 c1B d5 Rh7 Bd4 Bg5 d6 Bg7 f8R B7f6 Na3 Rf7 Rc1 a1N Rc6 Qa7 Ne2 Kf3 Na6 Rg7 b8Q Rh7 Rg1 h1Q Qd2 h2 Qh8 Qg2 Bc5 h1B Nc7 Qh2 Rg8 Qh5 Bh3 Ba6 d8N Bb5 Kd7 e5+ Rg7 e4 Kc8 e3 d7 Ba4 Nde6 Bd8 Be7 Bg2 Rh1 Bf1 Nc1 e2 Ncb5 e1N Ne2 Ng2 Rg8 Rf7 Ng7 Rf4 Nf5 Rd4 Neg3 Bc4 Ne2 Bf7 Rf8 Be8 Ng1+ Ke4 Bg4 Rd6 Qdb2 Rd1 Qc1 Kd3 Qcb2 Ba5 d8N Bb6 Nf7 Bd8 Qb3+ Kd2 Qd3+ Ke1 Rg8 Bc1 Bh4 Bcg5 Qc2 Qb6 Qcb2 Ra6 Rgg6 Qa7 Qf4 Rb6 Rc3 Rbd6 Rc6 Rb1 Rb6 Rdd1 Qbd2+ Kf1 Rg8 Rdc1+ Nc3 Bgf6 Nc4 Nd3 Rb3 Nb4 Nd4 Qha5 Nf5 Bg5 Na3 Re1 Rg6 Rbd1 Qdd6 Bec6 Ncb5 Be8 Nf3+ Ke2 Qd7 Rg1 Rc6 Rgf1 Ng1+ Ke1 Qdd2+
1N1R1B2/N7/1qrbNqr1/k1RNQ3/4q1n1/1Bn1b3/PK2QR1q/Bb2b1N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kd7 Kd2 g5 Kc2 e5 f4 c5 h4 Kc7 d6+ Kb6 d5 b3+ Kc3 g4 f6 e4 f7 b2 f5 c4 d7 g3 f6 g2 d6 e3 h6 e2 h5 Ra6 h7 Nc6 h6 Na7 Rh2 e1B+ Qd2 Qe7 d8N Bf5 d7 Ka5 Ne6 b5 d8N Rc6 Be2 Be4 Bd1 Bf5 Bb3 b4+ Kd4 c3 Qe2 c2 Nc3 b1Q Nd5 Bd3 Bb2 c1B Rh5 Qc2 Rh2 Bf4 Rc1 Qd2 Ba1 Bb1+ Qd3 Qd6 Rc5+ Nb5+ Kc4 Be3 Qe2 Be7 f8B Qb2 f7 Nf6 Nc3 Rg8 h8Q Qc2 h7 Ng4 Qe5 Rg6 h8R Qf5 Nd5 Qf6 Rg8 Qb8 Rgh8 Qb6 Rg8 Bd6 Rgh8 Ka6 Rg8 Nc3 Rgh8 Rc8 Nc6 Rc7 Na7 Rc6 Nf3 g1Q Rf2 Qh2 Ng1 Nb5 Bg7 Ka5 f8N Qb8 Nd7 Qb6 Ba4 b3 Nb8 b2 Kb3 Bf5 Rd8 b1Q+ Q5b2 Qe4 Bf8 Qeh1 Qe5 Bb1 Kb2 Qe4 Rc4 Nc3+ Bb3 Rc8 Rc6 Rc7 Rc4 Rc6 Rc5+
k3b3/bbBq2n1/b3N2K/R5RN/2B1N1rR/1rP1BRn1/3n4/qn3QRQ b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 b4 d5 f4 Kd7 h4 Kc7 f6 Kb7 h6 e5 f5 g5 f7 g4 h7 a4 b6 e4 c3 g3 f6 d3 Ke3 d2 Kf4 a3 Kg5 a2 b5 g2 h5 e3 h6 d4 Rh3 d3 Kh5 e2 Bb2 e1N Rh4 Nd7 Bc1 Rb8 Ne2 g1N Ng3 Bc5 f8R Nc2 f7 Na3 Be2 Bd4 Qf1 d1B Nd2 Ne7 Nde4 Rg8 h8Q d2 h7 Ka8 Kh6 Rg4 Bc4 Ne2 Nh5 Nc5 Rb1 a1Q b7+ Ka7 Rg8 Ba4 f8N d1B Be3 Ng3 Ne6 Bf3 Rg5 Nb3 Rh3 Qd7 Rc1 Ra8 b8R Ba6 Rf8 Bc5 Rh4 Rb8 b6+ Ka8 Rff5 Bd4 Ra5 Nb1 Rd1 Bb5 Rd3 N3d2 b7+ Ka7 Rh1 Bc5 Rg1 Nef5+ Kg6 Ng7 Kh6 Rf8 b8B+ Ka8 Bc7 Rb8 Qf8 Bh1 h8R Ba7 Qh3 Bc6 Qff1 Bg2 Rh7 Rb3 Qh1 Bcb7 Rdd5 Bf3 Rdf5 Be2 Rf3 Bd3 N4c5 Bg6 Ne4 Bf7 Rh8+ Be8 Rhf8 Ne2 Rh3 Ng3 Rf3 Qb5 Rh2 Qd7 Rh4
3Br3/BN6/1B1b3K/N3b1Qb/1PR2n1B/2rqQ3/1k2qn1N/Q1RBnb1n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 Kg5 Kd4 g4 c5 f4 h5 b4 a5 b6 e5+ f6 a4 b7 h3 d6 c4 f5 h2 d7 a3 Nf3+ Ke4 d4 a2 d5 h4 d6 h3 Be2 c3 Be3 c2 Bb6 Nh6 Na3 Nc6 b8B Ne7 f7 Ng6+ f6 Nf4 B8a7 c1Q Qa4 Qf1 Bd1 Kd3 Rc1 a1B Nc4 e4 Na5 e3 Rc4 e2 Rg1 h1N Nh2 Qe7 d8N e1N d7 Ba6 Ndb7 Qee2 d8B Bd6 f8B Bae5 f7 Rc8 Bfe7 Re8 f8Q Kd2 Qg8 Qd3 Qe6 Qfe2 Bc2 Kc1 Bd1+ Kb2 Bf6 Bc3 Qe3 Bce5 Rf1 Ng8 Bfe7 Nf6 Kh6 Ne4 g5 Nef2 g6 Rc6 g7 Rc5 Ng4 h2 g8Q Rc7 Qg5 Rc5 Rd4 Rc3 Rg1 Bc4 Re4 Bf7 Rc4 Bh5 Rf1 Ng3 Rg1 h1B Nh2 Be4 Qg7 Bef3 Bh4 Bg2 Qg5 Ngh1 Bb3 Nf3 Rc1 Ne1 Bd1 Bf1 Qa1#
1Kn5/2N1R2Q/2Q2Bnr/1N3BbP/BQR1r1br/q4nrq/3n3R/2kB1B2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 c4+ Kc5 h4 Kb4 e4 a5 b6 d5 e6 g5+ Ke5 f5 h6 f4 h5 d3 h7 d2 e7 g4 e8B a4 b7 a3 c5 a2 c6 f3 c7 f2 Nh3 g3 Nf4 d4 Nc3 g2 Nb5 g1R Qf3 d1N Rh2 d3 Nd5+ Kb3 Bg5 Kc2 b4 d2 Bf6 Bg4 c8B Be7 Ndc7 Nb2 Bf5 Na4 Re1 d1R Bf7 a1N Bb3+ Kc1 Re2 Re1 Bd1 Qd3 Re3 Na6 b8R N6c5 Rc8 Ncb3 Ke6 Nd2 e5 Ra5 Qc6+ Nc2 Re2 Qe3 Kd7 Qa3 e6 Rg3 Re3 Bd8 e7 Nb6+ Kd6 Ra7 e8B Ne7 Re4 Ng6 Re7 Ra6 Bed7 Re8 h8Q Re4 Qh7 Rf4 Bde6 Re4 Bb3 Rc4 Ba4 Ne1 Qd5 Re4 Kc6 Rd4 Kb7 Nef3 Kb8 Re4 Qc6+ Rc4 B1d3 f1Q B3e2 Qh3 Bf1 Rg2 Nc3 Rg3 b5 Na8 b6 Rf4 b7 Nb6 Re6 Rd4 Re3 Ree4 N3b5+ Rc4 Bh8 Bg5 Bf6 Rf4 Re7 Re4 Rd8 Nc8 Rd3 Kb1 Rc3 Rd4 Rc4 Kb2 Bac2 Kc1 Ba4+ Qc3 Qc5 Re2 Na3 Ngh4 Be5 Rh6 Qc6 Ng6 Ka8 Rf4 b8Q Ree4 Bdc2 Qb3 Qb4 Qb2 Nab5 Qa3 Be6 Bf5 Bf6 Rfg4 Kb8 Rh4 Bd7 Bg4 Bf5 Qa1 Bd1+ Qc3 Bac2 Qa3 Ba4+
1qb4b/2bQNR1r/nbN1Nn2/QK2P3/2r1Q2q/R1Q3k1/2nQR3/n3B2B b - - 0 1 illegal: No possible last move
B2k1B2/1r3R2/Q1Q1K1b1/N1P4R/BN3rrb/B2b2q1/1nr1bq1B/2n1N1Q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Kc4 e5 Kd5 d3 g4 h4 b4 e4 f4 a4 c4 a3 b6 a2 f6 h3 g6 h2 g5 d2 b7 e3 b5 e2 c5 e1Q b6 Be7 f5 Rh7 g7 Qf2 g6 Qc7 f7+ Kd8 f8B Nc6 b8B Ra4 f6 Ba6 b7 Nd4 f7 Bd3 Nf3 Ne2 Bg2 Rf4 Na3 Nh6 g8B Bh4 g7 Nf5 Qf1 d1R Nc4 Nd6 Ne1 Rd2 Na5 Nc4 Ba3 Rc2 Be4 d6 Ke6 Nc1 Bc6 d5 Ba4 d4 Qg2 Rc3 Qc6 Rc2 Rb1 a1R Rb3 Bg6 Rf3 d3 Qa6 Qc6+ Bbd6 d2 b8N Qc7 Qc6 d1B Na6 Bd3 Nb4 B1e2 Be5 Rh5 Bh7 Rg5 g8Q Rb1 Be4 Nb2 Qg6 Rgf5 Qg1 Rg5 Qa6 Qb8 Ba8 Bg6 Bh6 Rgg4 f8Q+ Be8 Qg7 Bg6 Qgb7 Qc7 Bf8 Qg7 Bb8 Qc3 Rh3 Qcg3 Qbc6 Bgd3 Qgg2 Bg6 Rf1 h1B Qg1 Bhe4 Be5 B4d3 Bb8 Bf6 Rh5 Bh4 Bbd6 Qfh2 Rf3 Qhf2 Be5 Rfc4 Rf7 Rcf4 Bed6 Qgg2 Rg7 Rf6+ Ke5 Nd1 Nd5 Rb7 Nb4 Nb2 Rf7 Qh3 Kd5 Qhh2 Bg3 Rff4 Ke6 Qh3 Bh2 Qhe3+ Kd5 Qeg3 Ke6
NnQNk1b1/1B3Q2/1n1Q1n1R/1qP1b3/1Nq4b/1rN3rN/1R1B2b1/1Kn4B b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 d5 Kc2 h5 f4 e5 b4 e4 g4 h4 c5 h3 g6 h2 g5 e3 g7 e2 f6 e1B f7+ Kd7 b6 a4 f5 a3 b5 a2 f6 Qc7 b7 Qc6 b6 Bc3 g6 Rh3 Bg2 Bb2 Bd2 Rg3 Nc3 Be7 f8N+ Ke8 Ne6 Ra3 Nd8 Qb5 Rb1 Be6 Nh3 Rb3 Qf1 Ba1 Rb2 d3+ Kc1 d4 f7+ Kd7 f8Q Bh4 Q1f2 Nf6 Qd6+ Ke8 g8B Qc4 Bh7 Bg8 g7 Qb5 Bhe4 Qc4 Rg1 h1B Bgf3 Bg2 Rh1 Na6 b8Q Qb5 Qb7 Nb8 Qc8 Qc4 b7 Qb5 Be1 d2+ Kc2 d1N Bd2 d3+ Kc1 Bh7 g8N Ne3 Ne7 Nc4 Nec6 Bg8 Nb4 Nb6 Rh2 Bf1 Bh1 Bg2 Bh6 d2+ Kc2 d1N Bd2 Qc4 Qff4 Nf2 Qf3 Na6 b8N Nd3 Nd7 Nc1 Bb7 Nb8 Qf1 Nbd5 Nb6 Qb5 Na8 Nb6 Rb1 Bb2 Qc4 a1Q Qcf4 Qaa6 Qff5 Ba1 Rb2 Qc4 Kb1 Qab5 Nf2 Bg5 Rh6 Bh4 Nh3 Qd5 Nca2 Qdc4 Qfd5 Ra3 Rb3 Bc3 Rb2 Be5 Nc3 Rb3 Qf7+
3Q1B1B/6Rr/1P6/2BQq2R/B4R1q/1Q1Nn1b1/n1bbK1k1/rrb2rBN b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 g5 e5 b6 a5 b5 a4 f6 a3 b7 h3 f7 h4 f5 a2 g6 c4 f6 c3 b6 e4 g7 h2 Ne2 e3 Bb2 h3 Qb3 c2 Nf4 c1B Nd3 e2 Nc3 Bd7 Nd1 Nh6 g8R Ng4 N1f2 Ba4 Rg7 Na6 b8B+ Qc7 Rb1 a1R Bc3 Be7 f8B Nb4 f7 Ne3 Bg2 Ra6 Rf1 Ra8 Nh1 Na2 Rf4 Rh7 Kf2 e1B+ Ke2 Bed2 Bb2 Kd7 d6 Bh4 d5 Bg3 Be7 Ra5 f8B Rb5 Bf3 Qc3 Bh5 Qe5 Be8+ Kc8 d7+ Kb7 d6 Kc6 Bd4 Rb4 Bc5 Rb5 Bf6 Rb4 Qb2 Kd5 d8Q Bc2 Ba4 Rb3 d7 Rb4 Nhf2 h1Q Bbd6 Qhe4 Nh1 h2 Qb3+ Qc4 Bd4 Rb5 B6c5 Rb4 Nf2 h1R Rb2 Rg1 Nh1 Rf1 Qa8+ Ke6 d8Q Rb5 Rh4 Kf5 Qa5 Qb4 Rh5+ Ke4 Rb1 Ng2 Bg1 Ne3 Qg8 Qc4 Rb4 Qcd4 Rc4 Rbb1 Qb5 Qf4 Qb3 Qh4 Ne1 Kf4 Qgd5 Qe4 Bfd4 Qe5 Rb4 Bg6 Rc4 Kg4 Bb2+ Kh3 Rf4 Bc2 Nd3 Qc7 Rg8 Qb8 Bh8 Qe5 Qf7 Kg2 Rg7 Ba5 Qg8 Bad2 Qgd5+
2bk1b1N/2bB2Br/P1r1BRq1/2r5/3Qn1bR/1KBr1N2/RQBq1n2/Q7 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 h5 g4 e5 d4 b5 Kd2 c5 Kc2 c4 a4 e4 g6 c3 g5 e3 d6 h4 d7+ Ke7 d5 e2 a5 e1R g7 h3 f6+ Kf7 d6 h2 g6+ Ke6 f5+ Ke5 a6 Nh6 g8B Qa5 d8Q Re3 g7 Nd7 f7 Rh7 f6 Ke6 Bd2 Ng4 Ra2 Nf2 Nh3 Rd3 Kb3 c2+ Bc3 c1B Qb6 Bf4 Nd2 Be5 Nf3 Nc5+ Kb2 Kd7 Qa1 b3 Nhg5 Rh5 Bh7 b4 g8B Nce4 Qb8 Qd5 Bh3+ Kd8 d7 Bc7 Be6 Qd4 Bhf5 Ra7 Bgh7 Rb7 Bg4 Rb6 Qb7 Rc6 Qb6 Bc5 f8B Qe3 Bh6 Bf8 f7 Qf4 Bhg7 Qd2+ Kb1 b2 Qb8 Qe1+ Kc2 b1B+ Kb3 Qd2 Bg6 Re3 Bh3 Bd3 Bgf5 Be2 Qb6 Rd3 Qd4 Ke7 d8R Rh7 Rd6 Rh5 Bd7 Kd8 Rf6 Rh7 Bg6 Rc5 Bhe6 Rh6 Rg1 h1R Rg4 Rh7 Rh4 Rc1 Ne5 Bg4 Ngf3 Rc6 Bgf5 Rc5 Ng6 Rc2 Nh8 Rc6 Ka4 b3 Bg6 b2 Kb3 b1Q+ Qb2 Qbc1 Bgf5 Qh6 Qa1 Qg6 Qb2 Be7 Qa1 Qd2 f8Q+ Qe8 Qf7 Bf8 Qh5 Qf7 Bg6 Rc1 Qb5 Rc2 Bf5 Qg6 Qbb4 Rc1 Qa3 Rc5 Q3b2 Rc6 Qb4 Ng3 Qa4 Rd5 Ba5 R1c5 Bc2 Rd3+ Bc3 Nge4 Qd4
2N3qQ/1RQK1P2/4NBqr/r1NR1n1k/3Q1n1b/r5Q1/2b1qRQ1/rB1q4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 c5 Ke4 h5 Ke5 a5 g4 a4 f4 a3 b4 c4 d4 e6 b6 c3 g5 h3 f6 Kg6 f5+ Kh7 b7 h4 f7 h2 g6+ Kg7 b5 h3 d6 a2 b6 c2 d5 Nh6 d7 Rh7 d6 Rh8 Bg5 c1R Nc3 Be7 f8N Ra6 f6+ Kg8 g7 Kf7 Na4 Rc4 Bd3 Ra5+ Nc5 Rf4 Ng6 Rf3 Ne2 Nf5 Bb1 Na6 b8Q Rh6 b7 Nb4 Nef4 Rfa3 Qd4 Qg8 d8R Nd5 Rf1 h1Q d7 h2 Rf2 Qg1 Qc7 h1Q b8Q Qh5 Qb3 Qgd1 Qg3 Ba6 Rb8 Bd3 Rb7 Bc2 Qg2 Bd8 Ne7 Qg6 Nc8 Be7 Nh3 Nf4 d8Q Q6h7 Qf8+ Kg6 f7 Kh5 Bf6 Qg6 Ng5 Bb3 Be4 Bc2 Rab1 a1R R1b5 Q8h7 Qh8 Qg8 Bd3 Bd8 Ke4 e5 Nge6 Ne2 Kd5 e4 Kc6 e3 Be4 Nf4 Kd7 e2 Qg3 e1Q Bd3 Q8h7 g8Q Qee2 Qgg7 Qg8 Be4 Ba4 Bb1 Bc2 Qg2 Q6h7 Q7g3 Qhg6 Nd3 Be7 Rd5 Bd8 Ndc5 Be7 Be5 Bh4 Bf6
1R1Rb3/1BqB1Pbn/1nQ1Q1R1/nq6/4RN1B/3Q1k2/1rb2r1R/2Kn1N1b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 f6 a5 f7 c4 g5 e4 f5 a4 f6 a3 b6 h3 b5 a2 b7 h2 b6 h4 g6 h3 g7 Nd7 b8R Qe8 b7 Nb6 Qc2 Bf5 Bg2 Qb5 Re8 Rb8 Ne2 e3+ Kd1 c3 Re4 Rh4 Nd2 Rf4 Nf1 Rf2 Nf4 Bd7 Bb2 e2+ Kc1 e1N Rb1 a1N Qe2 Ra8 b8R c2 Qg4 Ra2 Qe6+ Kc7 d6+ Kc6 Bc3 Rb2 d5+ Kc5 Bf3 Ng2 Be1 Be8 d7 Ne3 d8R Nd1 d6 Kc6 Rg1 h1B Rg6 h2 d7+ Kc5 Bg4 Bf3 Bf5 h1B Bh3 Be2 Bg2 Bd3 Bf3 Nh6 g8B Bg7 Bh7 Ng8 f8Q+ Ne7 Qfg8 Ned5 f7 Nf6 Qh8 Rd2 Bh4 Rf2 Rb4 Bf5 Bb7 Bd3 Ra4 Bde4 Ra2 Kd4 Qc6 Ke5 Qf8 Bd3 Qe7+ Kd4 Qee6 Bde4 Nd2 Ke3 Nf1+ Kf3 Ra4 Bd5 Re4 Bb3 Rg4 Ba4 Bf5 Nh7 Rg2 Ra2 Rbb4 Rb2 Rg6 Bb3 Rbd4 Ba4 Rd2 Bb3 Rde2 Ba4 Kd2 c1Q+ Ke1 Ra2 Qb3+ Qd3 Rdc8 Bg2 d8Q Bh1 Qcf6 Qc7 Qc6 Rb2 Qdf6 Rh2 Bd7 Rg2 Qfe6 Rh2 Qa3 Bc2 Rd8 Nb3 Qad6 Qb5 Qd3+ Ne3 Rd2 Na5 Re2 Rg2 Kd2 Rh2 Kc1 Rg2 Qdd5 Nd1 Qd4 Rg4 Rh2 Rg2 Qdc4 Rf2 Qd3+
QN1N2R1/q1P3b1/bbBr2QQ/1q6/1N2QK1B/5QR1/n2kr2B/bn1n2n1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 f4 d5 b4 e5 h4 a5 c5 g5 h6 d3 Ke3 d2 h5 g4 h7 a4 b6 a3 b5 e4 h6 g3 c6 a2 b7 g2 b6 Qd7 Bb5 Bg7 Na3 Qc7 Qc2 d1Q Rh3 Ne7 Rg3 Be6 Nh3 g1N Ng5 Rc8 h8Q Qh5 h7 Re8 Qg8 Rd8 h8Q Bc8 Ne6 Rd6 Nd8 Na6 b8B Nb4 b7 Ra5 Rb1 a1B Qg2 Ra7 Nc2 Na2 Nb4 Qg5 Qh5 Ra8 Qhf3 d4+ Kf2 d3 Ke3 d2 Ba3 Nh3 Rg1 Ra5 Ba4 Re5 Qc4 Qa5 Bc7 Qh5 b8N Qa7+ Qd4 Ba6 Bb2 Re6 Bd6 Qg5 c7 Qh5 Bc6 d1N+ Kd2 Qg5 Qdd3 e3+ Ke2 Bb7 Qde4 Nd5 Bc3 Qh5 Be1 N5c3+ Kd3 e2 Kd2 Bh6 Rg8 Qg5 Bh4 Ba6 Qgg4 Bg7 Rg3 Ng1 Qh5 Rb5 Kd3 e1B Be5+ Ke7 Qg6 Rb6+ Kd4 Nf2 Ke3 Nb1 Bf6+ Kd6 Be5+ Kc5 f6 Qh5 f5 Nd1+ Kf4 Bf2 f7 Bfd4 f8Q+ Kc4 f6 Re7 Be8 Rd6 f7 Ree6 Bc6 Re8 Bef6 Qb5 Be5 Re7 Qe8 Ree6 f8Q Re7 Nd3 Kc3 Nb4+ Kd2 Qh6 Bb6 Qff5 Rd3 Qc8 Re6 Q8g6 Re3 Qb7 Re2 Qa8 Rd6 Rh3 Bf8 Kg5 Qc4 Bh2 Qb5+ Kf4 Bfg7 Rg3
1BK4R/1N2Q3/5q1k/2nN1nb1/1q6/rQQn1BNr/1QpP1B2/Q1R1qbr1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kg7 Kf4 a5 Ke5 c5 b4 h5 f4 c4 g4 h3 d6 e6 b6 a4 f6+ Kg6 b7 a3 b5 a2 b6 h2 f5+ Kg5 d7 h4 f7 c3 f6 c2 Bg2 h3 Bf3 Ra3 Nc3 Bg7 Kd6 e5 f8Q e4 f7 e3 Bb2 e2 Qe7+ Kg6 f8Q e1Q g5 Nh6 Nge2 Qe8 Kc7 Kh7 d8N Nf5 g6+ Kh6 Rc1 a1Q Nd5 Nd7 b8B Ba6 b7 Nc5 Qff6 Qf8 Ng3 Bf1 Qc3 Bf6 g7 Bg5 g8Q Qb1 Qge6+ Qf6 Kc8 Rg8 Ba1 Qb4 Qee3 Rg6 Qb3 Rg8 Bd4 Rh8 Qec3 Rh7 Rg1 h1R Bf2 h2 Rg2 Rg1 Qbb2 h1N Rh2+ Kg6 Rh5 Rg7 Rh8 Rh7 Bf4 Kh6 b8Q Qa5 Q8b3 Qb4 B2e3 Nf2 Bb8 Nfd3 Nb7 Kg6 Bf2 Rh3 Qee5 Kg7 Qde2 Kg6 Qa1 Kg7 Qcb2 Kg6 Qec3 Kg7 Qe7+ Kg6 Rg8+ Kh6 Rh8+
b3BqR1/3r4/QQNQR1qN/3Q2b1/1Rr1n3/bk4P1/qn1Bp1n1/1Q1N3K b - - 0 1 illegal: No possible last move, all moves rejected
2q2Bb1/r2q1Q2/3rB1BN/1k2KNQB/1RR1n1P1/bp5b/5Nnr/3B2Rn b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kg3 f5 Kf4 h5 g4 b5 a4 c5 d4 b3 e4 b2 d6 Kc6 d5+ Kb6 a5+ Ka6 d7 h4 g6 h3 g7 h2 e6 c4 d6 c3 e7 c2 e8B Qh4 d8N Nh6 g8B Nc6 e5 Qh5 e6 Ne5 d7 Bg7 e7 Bb7 Be2 Bf8 Nc3 b1R Ba3 Nc4 Qf1 b4 Nf7 b3 d8Q Rd1 Nd5 c1Q+ Ne3 Rd6 Nh3 Bd5 Nf2 Ra7 Rg1 h1N Bd1 Qg6 Ra2 Qe6 Rc2 Qd7 Bc5 Kb5 a6 Bg7 Ba3 Bb2 Bb4 Ba3 Rc3 Rb7 a7 Be6 a8R Ra7 Ne5 Bd5 Bh5 Nf7 e8B Ng5 Nf7 Ne4 Qg5 Qc2 Bg6 Rh2 Nh6 Qc1 Be6 Qc2 Kf3 f4 Nef5 Qc1 Bh5 Qc2 Beg6 Qc1 Qe1 Ne3 Rc4 Ng2 Qc3 Qc2 Qcf6 Qc1 Qf7 Qc3+ Ne3 Qh8 Nef5 Qhc8 Ke2 f3+ Kd3 Bc1 Kd4 Ba3 Nd3 f2 Ke5 f1B Nf2 Ne3 Bc5 Bh3 Bb4 Ng2 Bc5 Rb7 Raa4 Ra7 Bb4 Rc6 Be7 Rd6 Bf8 Qdc7 Bd7+ Kb6 Qe8 Bg8 Be6 Q7d7 Qf7 Kb5 Rab4+
1N3QR1/2B4r/Q5NN/Q5QB/1q1b1P1n/1qr2QKR/b2q1p2/k1n1R1nr b - - 0 1 illegal: No proof kernel
2b1qn2/1N2b2Q/r1NRQ2r/BQ2R3/1Q1n1P2/3B2K1/pn1Qq1B1/k1br1R2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 Kf2 Kc5 d4+ Kb4 d6 h5 b6 a5 g5 c5 g6 e5 g7 a4 b7 e4 d5 h3 d7 c4 d6 h2 f6 h4 f7 h3 Bg2 e3+ Kg3 c3 Qc2 a3 Nf3 a2 Qh7 Kb3 Bd2 c2 Re1 c1B Nc3 h1Q Ne4 h2 Ne5 e2 Nc6 Kc2 b4 Kb2 b5 Ra6 b6 Qe8 d8Q Qe5 d7 Qc7 Ba5 Ba3 f8Q Be7 Qf6+ Qe5 Nc5 Qf1 Qe6 Nh6 g8B h1R Bf7 Qe4 Bg6 Qe5 Bd3 Nf5+ Kg4 Nd4 Kg3 Qg1 Rf1 Qh5 Re1 Qe8 Rf1 e1N Rb1+ Ka3 Rb2 Rh6 Re2 Rh1 Re5 Kb2 Qc7 Rh6 d8R Ka1 Rd6 Nd7 b8Q Nf8 b7 Qh1 Qb6 Qhh5 Qb5 Qe2 Qc7 Rh1 b8Q Rg1 Qh2 Rh6 Qb4 Rh1 Q8b5 Rg1 Nb7 Rh1 Bde4 Nd3 Qd8 Nb2 Bd3 Rf6 Qh7 Rfh6 Qdb6 Rg1 Qd2 Rgh1 Q6c5 Rg1 Qcb4 Rgh1 Rf3 Rd1 Rf1
1q1Q4/1BQnq2Q/1r5Q/Pb1rNb1K/2kq2N1/p1N2RR1/4rn2/1R2bQB1 b - - 0 1 illegal: No proof kernel
RQNQ1bN1/3b1B2/q1P2nB1/3N1RB1/B1R1q1q1/1k1rp1n1/3rbr2/2B1K3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 Kf7 f4 a5 c4 h5 b4 d5 c5 e5 b6 h4 f6 Ke6 f5+ Kd7 b7 Kc6 f7 d3 b5+ Kd7 g6 h3 g7 e4 g5 h2 g6 d4 b6 Kc6 f6 Kd5 c6 Kc4 Nf3 a4 Ne5+ Kb4 Nd7 a3 Nc3 e3 Nd5+ Kc4 Ra2 Na6 b8B Rh6 b7 Nc5 Bf4 Ne4 b8Q Ng3 Bg5 Qa5+ Qd2 Qa6 N7b6+ Kb3 Be2 Bd7 Nc8+ Ka4 Rc2 a2 Rf1 a1R Rf5 h1Q+ Bf1 Ra3 Rc4+ Bb4 f8N Qe4 f7 Rh2 Nh7 Rf2 f8R Nf6 g8B Kb3 g7 Ra7 Bf4 Rb7 Re8 Bf8 Bg5 Ra2 Qa5 Rad2 Bf7 Rb6 g8B Rb5 Nb4 Rd5 Bg6 Rc2 B8f7 d2+ Kd1 Rc3 Qd8 Rd3 Bb2 Rd6 Nd5+ Ka2 Kc2 d1B+ Kc1 Be2 Ba3 Ng4 Nhf6 Rd2 Ng8 d3 Bg2 Nf6 Bf3 Bf1 Bd1 Be2 Ba4 Nh7 Bb5 Kb3 Ree5 Nf6 Re7 Be6 Ra7 Bd7 Ra8 Rc2+ Kb1 d2 Bb2 d1Q+ Bc1 Qdd3 Ba3 Rd2+ Kc1 Qg4 Bb2 Qde4 Ba3 Bf1 Bb2 Rde2 Kd1 Rd2+ Ke1 Be2 Ba3 Rd3 Bc1 Rd2 Nc3 R6d4 Nd5 R4d3 Ba4+
1nBRN1K1/2R2r2/1rpr2RB/1Bq2Q1k/Pnb1b2b/4B3/1qnQB3/Q3N3 b - - 0 1 illegal: No possible last move
1B1b4/1K3B2/N1p2nN1/1Q3PB1/2R3bR/1rnrN1B1/5qBr/nq1Rb1kQ b - - 0 1 illegal: No possible last move
1nR3NQ/1Qbb1q1p/4B1QK/2P5/2Q3qn/r1Br1bRQ/1nB2r1k/5R1N b - - 0 1 illegal: No possible last move
b2nR1K1/1n4Qp/n3QBBq/PRq1Bb2/1N3rQb/2k4r/4NQ2/5QNq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 c5 Kc4 e5 g4 b3 a4 b2 f4 e4 d4 e3 g6+ Kf6 d6 b5+ Kd5 c4 a5 c3 g7 e2 d7 e1Q g5+ Ke7 g6 Kf6 Nd2 b1Q Nb3 b4 Qg4 c2 Rh5 Ra7 Bd3 Be7 Bb2 Qc7 d8B Nh6 g8Q c1N Qe6+ Kg7 f6+ Kf8 f7 Kg7 f5 Ra6 Bc2 Rf8 f6+ Kh8 Re5 Nd3 Re4 Qbd1 Rb1 Qdd2 Ba1 Nc5 Re2 Rg8 f8Q Nb7 f7 Bh4 Qc5 Qb6 f8Q Nf7 Re5 Qh6 Bf6+ Qg7 Qb5 Nfd8 Qf1 Qc7 Qc5 Rf8 Re3 Rd6+ Ke5 Qc1 d5 Na6 Nd4 b3 Re1 Rb6+ d6 b2 Re2 Qc6 d7 Qh1 Re4 Rb3 Kd5 Nf7 d8N Rh3 N8c6 Nfd8 Nb4 Rf7 Be5 Rf4 Bd3 Qf6 Qc2 Kg7 Qcf2 Nbc5 Kd6 Bb7 Re1 Ba8 Bf5 Kh6 g7 Ncb7+ Kd7 Qc2 Ke8 Qc5 Bg6 Qg5 g8Q Qh5 Rbd1 b1B Rd3 Bc2 Rb3 Bf5 Qgf7 Qg5 Qfe7 Qh5 Kf8 Qg5 Kg8 Qf6 Qge2 Kg5 Q2c4 Kg4 Qg7 Qg5 Bf6 Qh6 Re5 Qd6 Rb5 Qc5 Re3 Qa7 Nde2 Qc5 Qd6 Rd4 Re8 Re4 Qdd1 Rf4 Bae5 Be4 Bh5+ Kf5 Qa2 Bb1 Nd4+ Ke4 Qe6 Bc2 Qdg4 Bb1 Q2g2+ Ke3 Qga2 Bf5 Bg6 Ke4 Qag2+ Ke3 Q2g3+ Kd2 Qgf2+ Kc3 Nde2+
K1n1Q3/N3n1P1/5RR1/1R2n3/B4N1B/1Qqr1Rbk/2pr3b/r2bqNRB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 a5 Ke4 c5 g4 h5 b4 c4 d4 f3 b6 h4 g6 Kf6 d6 c3 Kd5 f2 e4 h3 b7 a4 e5+ Kg7 d7 f5 g5 f4 b5 a3 e6 a2 e7 h2 e8B f3 b6 Qc7 d8R Ra3 Nh3 Bd7 Nd2 Rh5 Nf4 Bh3 Ba4 Bc8 Rg1 h1N Qb3 c2 Rd6 Bg4 Rf6 Ng3 Bg2 f1R Bh1 Nd7 b8Q f2 b7 Ne5 Qe8 Bd6 b8R Ne4 Rb5 Bd1 Bb2 Re1 Nf1 Qc3 Rg3 Rh7 Rf3 Rh2 Rc1 a1B Rb1 Nc4 Kc6 Ne5+ Kb7 Ne7 d5 Re3 Rc1 Rd3 Ka8 Bc7 Rb1 Nd6 Rc1 Ndc8 d6 Bb8 d7 Bd6 d8N Bc7 Ne3 f1Q Nc6 Rhd2 Na7 Qe1 Nf1 Ra2 Ba3 Bb2 Bc5 Ra1 Bf2 Ba3 Rb1 Bc5 Bg3 Bg1 Bh4 Bh2 Qd7 Kh8 g7+ Kh7 g6+ Kh6 g8R Bb8 Qe8 Bd6 Ne2 Kh5 Nf4+ Kg4 g7 Rg2 Rh8 Rgd2 Rhh6 Bg3 Ne2 Bc7 Rhg6+ Kh3 Qd5 Bb6 Rh6 Bg1 Rhg6 Qf2 Qb3 Bh2 Ne3 Qf1 Nd4 Qf2 Ne6 Be2 Rg1 Qe1 Nf1 Bd1 Nf4+
N2nBb2/1r2B1PR/rQ6/1Q2NpRN/3N1K2/1n3N2/1R1nQ2r/1q1bqk1b b - - 0 1 illegal: No possible last move, all moves rejected
Q4R1b/3K1P2/Bqn1N3/pb3q1k/3NR1R1/B4bRr/2rB1QQn/r1n4R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Ke4 h5 f4 a5 g4 c5 b4 h3 d4 h2 f6 Kg6 d6 h4 Kd5 e4 d7 c4 Ke6 c3 f7 c2 g5 h3 d5 e3 d6 e2 f5+ Kh5 b6 Kg4 b7 Ra7 g6 Nf6 b5 Nd5 g7 Qb6 g8Q+ Kh4 f6 e1Q+ Qe2 Rh7 Bd2 c1R Nc3 Rg7 Nf3+ Kh5 Nd4+ Kg6 Ra3 Ra6 Na4 Ra1 Nc5 Qb1 Qf2 Kh5 Rg3 Nc6 b8Q Ndb4 Qa8 Nd3 Rg4 Be7 f8B Nc1 f7 Rh7 Bc4 Bb7 d8R Bf6 d7 Bh8 Re8 Qf5+ Kd6 Ra7 d8R Ba6 Ree4 Rc7 Nce6 Rc8 Kd7 Rh6 Rhg1 h1B R1g3 h2 Ba3 Bf3 Rf8 h1N Bf1 Nd8 Bd3 Rc2 Be2 Nc6 Bf1 Qbc5 b6 Bb5 b7 Qb6 b8R Rh7 Qe2 Nf2 Qe1 Nd1 Qf2 Ne3 Bd3 Nf1 Rbd8 Ba4 Ba6 Nh2 Rde8 Rh6 Re1 Bb5 Rh1 Qf6 Nd8 Qg5 Ree4 Qf5+ N8e6 Qb8 Rgf4 Qb6 Rg2 Rg6 Qg7 Rg3 Qg8 Rh3 Qgg3 Qb8 Rg4 Qb6 Rgg1 Bfe2 Qgf3 Bd1 R1g3 Bde2 Q3g2 Bd1 Bb2 Bf3 Ba3
1R2K3/R1b2pBb/B2rN2N/1R1Qn2B/nQ2NN1P/qN1n3q/k5r1/3r2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 g5 h4 c5 d4 a5 b6 f3 b7 a4 d6 g4 h6 f2 b5 g3 e4+ Kb4 b6 a3 d7 a2 h7 c4 d5 c3 d6 g2 Nf3 g1R Nbd2 c2 Bb2 c1Q Nh2 Ra7 Be2 f1N Ng4 Na6 b8Q Ne3 b7 Nf5 Nh6 Qg5 d8N Nc5 d7 Ra6 Bh5 Qe3 Nc6+ Kb5 d8N Nd6 Na5 Ne7 Kf6 Kb4 e5 Ng6 e6 Nf4 e7 Rg2 e8B Bf5 Ne6 Nc4 Bb5 Bd6 Ne4 Rd8 h8N Bh7 Ng6 Bc7 Ke7 Qh3 Bg7 Ka3 Qd3+ Qc3 Rhb1 Ne5 Rb2 Rd5 Ke8 Rad6 Qc4 Rdd2 Qd5 Nfd3 Ngf4 Qd4 Rb4 Qg1 Nb3 Kb2 Qa8 Rd1 b8R Ra6 Qab7 Rd6 Rc1 a1Q Bc4 Qa5 Ra1 Qa6 Rb6 Qa4+ Bb5 Qb4 Ra7 Qa3 Ba6 Ka2 Rb4 Na4 Qb6 Rc2 Qbc5 Re2 R4b5 Rg2 Qb4
qr1R1K2/3QPBRQ/Nq4p1/1bR3k1/3b4/n2qrQn1/BR1B3N/1n2b1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 c5 Ke4 a5 d4 g3 b4 a4 h4 g6 e6 Kf6 d6 a3 Kd5 c4 e4 g2 b6 c3 e5+ Kf5 b5 c2 d7 f6 h5 a2 h6 Rh7 b7 Nc6 b8R Bc5 b6 Qf8 d8Q Na5 b7 Ba3 Nf3 g1N Nbd2 Qf7 Nb3 Be7 Nh2 Qe8 Nc5 Ne2 Rg1 Bd7 Rc8 Nc4 b8R Bf8 Rbb1 Re7 h7 Nh6 h8Q Ba4 Be3 c1Q Qh7 Qb2 Qd6 Qb6 Rb2 Bg7 Rc7 Qc8 Na6 Bb5 Bd2 Na3 Rac1 Qf8 Qc6 Nc3+ Kd6 Rae8 d5 Ncb1 Rc5 Qh8 Bb4 Qg8 Bg2 Kg5 Bc3 f5 Bd2+ f4 Bf1+ Kh4 Bc4 f3 Qb3 f2 Qf3 Rc8 Rd7 Ree8 Re7 Bf6 Rg7 f1Q Kd7 Bg5 d6 Qd3 Bb3 Ra8 Bd5 Be3 Bc4 Bf2 Bd5 Rf8 Ke7 Be1 d7 Rf4 Bc4 Re4 Qd6 Qc8 d8R Re3 Kf8 Qcb7 Qdc6 Rb8 Qd7 Qa8 Bd5 Bg3 Bb3 Kg5 Bc4 Nf5 Bb3 Qac6 e7 Qcd5 e8B Qa8 e6 a1B Rbc2 Bd4 e7 Bc4 Bf7 Bb5 Rgc1 Bf2 Rb2 Bg3 Rh1 Be1 Bbd5 Ng3 Rg1 Qe4 Bde6+ Qf5 Bd5 Qd3 Ba2+
r4N2/1PNq2Nn/p2BRk2/5B1K/nQNR2B1/bq1b4/2Q1q1n1/1R1b2rN b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 h5 g4 e5 b4 c5 d4 h3 d6 h2 g5 c4 d5 h4 Kg4 h3 f4 c3 b6 c2 b7 a6 g6+ Kg7 b5 e4 d7 e3 f6+ Kh6 f5 Bc5 g7 Be7 d6 Bf8 f7 Ne7 g8B Kg7 b6 e2 f6+ Kg6 Bf4 c1Q Na3 e1N Qc2+ Nf5 Ne2 Bg7 Rb1 Nf3 Nc4 Qd2 Ng3 Bf8 Bd3 Qe2 Rhe1 h1Q Be4 Qe8 d8N h2 d7 Ba3 Ne6 Ng5+ Bf3 Qg1 d8R h1B Ng7 Nh7 Bd6 Nd7 b8Q Qge3 b7 Bg2 Nh1 Nc5 Rd7 Bf1 f8N+ Kh6 f7 Qb3 Nfe6 Kg6 f8N+ Kf6 Qa7 Nh4 Qb6 Na4 Nc7 Ng2 Be6 Rg8 Bf5 Q8e7 Rd8 Be6 Qb5 Qd7 Qb4 Bd5 Kh5 Be4 Qa2 Bc2 B3g4 Bd1 Qc2 Qee7 Re8 Bd3 Re4 Qe5 Rd4 Qe2 Nge6 Rg6 Ng7 Ne3 Bf3 Rg1 B3g4 Ng2 Re6+
3q2Rn/1p1N1QR1/BQ3N2/3r4/B1rrnQ1k/1qBn4/4B1P1/1Bb1RKbb b - - 0 1 illegal: No proof kernel
B1k1nq2/3nQR2/Bnb1N3/n1RbQ3/1b4BP/Q3BN2/2pBn1K1/1R1r3r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 b4 c5 h4 g5 e4 a5 d4 f5 e6+ Kc7 b6+ Kb7 d6 f4 e5 a4 e7 c4 e8B f3 e6 c3 b5 c2 d5 a3 e7 a2 d7 Ra3 d6 Rh6 Nc3 Nf6 Rb1 a1N Bh5 Ne8 Nd5 Nb3 Nf4 Ra1 Ne6 Na5 Qd3 Rh8 Kg3 f2 Kg2 g3 Be3 g4 Nf3 Rh7 Be2 Rh8 Qa3 f1B+ Kg1 g2 Rh2 Qc7 d8Q Qc5 d7 Rh6 Kf2 g1N Kg3 Rh7 Rf2 Nh3 Bd3 Be2 Kg2 g3 Bg4 Rh5 Rff1 Rd5 Bc4 Rd1 Bd3 Nf6 e8B Bd6 Beg6 Ne8 Qe7 Qb4 d8B+ Bd7 Bde4+ Kc8 Ba8 Bc4 Bd3 Bc6 Bd2 Nd7 b7+ Kb8 Bb6 B4d5 Bbe3 Nf4+ Kg1 g2 Kf2 g1N Bc4 Nd3+ Kg2 N3c5 Rf2 Ka7 b8R Ne2 Rc8 Rh1 Rc7+ Kb8 b6 Na4 b7 Nab6 Bd3 Qf4 Ba6 Qf8 Rff1 Bb5 Rc5 Bbc6 Rb4 Rd1 Rf4 Be5 Rf7 Bc3 Re1 Ra1 Rb1 Bb4 Rb2 Raf1 Rb1 Rd1 Qb2 Bc3 Ng7 Nc8 Qa3 Kc7 Qe4 Kd8 b8Q Bb4 Qd6 Nb6 Qde7+ Kc7 Ne6+ Kb8 Bc4 Kc8 Qe5 Nc3 Bd3 Ne2 Ba6+
NrR2b1B/4b3/Kn1n1B1N/1Bb3Rq/B1bnPN2/2b3Q1/QBp1k1r1/6Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 e4 c5 Ke2 g5 Kd3 f5 Kc4 a5 b4 a4 d4 g3 b6 f4 Kb5 f3 e6+ Kd6 h5 g2 h6 f2 h7 a3 e7 g4 e8B g3 b7 a2 Nh3 g1B Bb2 g2 Nf4 c4 Nc3 Qe7 Rh5 Nd7 Na4 c3 Nb6 c2 Rg5 Ra7 Na8 Nb6 b8Q+ Qc7 Qb7 Nh6 Qa6 Nf5 Bc4 Bh2 Qg1 f1N Bd3 Rg8 h8B Qf7 Qa5 Rb7 Ka6 Qg6 Ba4 N1e3 b5 Nec4 Rd1 a1B Bf1 Nd7 b6 Rb8+ b7 Qh5 Rd3 Rg7 Rc3 Ndb6 Be2 Be6 Bf1 Nd2 Bfb5 Nf3 Rc8 Bg3 Qh2 Bh4 Qg1 Ke7 d6+ Kf6 d5+ N3d4 d7 Ke5 d6 Bc4 Bc3 Bb2 d8B Ba1 d7 Bb2 Qa1 g1B Qa2 Ba1 Bb2 Bgf2 Qe1 Bg1 Bc1 Bc3 Bb2 Be3 Qg1 Bef2 Rg3 Nd6 Be7 Bf6 d8N Rg6 Rh3 Rg2 Rg3 B6g7 Bh4 Bf6 Rg7 B6e7 Bg5 Nf3 Nf7+ Kd4 Bf6+ Ke3 Nh6 Kd2 Rg8 Bc5 Rg5 Nd4 Re8 Rc8 b8Q Rd8 Qc7 Rb8 Rc8 Nf7 Nh3 Ke2 Qg3 Nd6 Nf4+
2N2rQ1/5BN1/BB1rQb1Q/Nb1k1qpK/4n3/b3n1b1/R4PB1/2B2brR b - - 0 1 illegal: No possible last move, all moves rejected
4k3/Nn6/N1rn1b2/QRq1brpK/1RnR1PRb/4QB2/N5Q1/BbR4b b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 a5 Kf3 e5 Kg4 d5 b4 g5 h4 a4 c4 d3 f4 d2 h6 d4 c5 e4 h5 d3 h7 a3 b6 e3 b5 e2 b7 e1B b6 a2 h6 Ra6 c6 Ba3 c7 Bc5 Kh5 Qd5 f6 Bh4 f7+ Ke7 f8Q+ Kd7 Qe1 d1B+ Ne2 d2 Qf5+ Ke7 Rg1 Be6 c8R Bb3 Nbc3 d1N Bg2 Qd4 Rd8 Nb2 Nb5 Bb4 Na7 Ra3 Nc3 Ra6 Qa5 Nc6 b8R Bd6 b7 Nc4 Qe3 Qc5 Bf3 Be5 Rd4 Bf5 Bb2 Nd8 Rac1 a1B Na2 Rc6 Rg4 Ke8 Bc3 Ne7 Bb2 Rf8 h8R Nd5 h7 Ne7 Rg8 Bf6 h8Q Bb1 Qh7 Be5 Qc2 Nc8 Qg2 N8d6 Rg6 B3c2 Rf6 Be4 Rf5 Bh8 Rfd5 Rf5 Bc3 Bf6 Bb2 Qb6 Rb5 Qc5 Bc3 Bb2 Rb4 Ba3 Ba1 Bb2 Ra8 Bc3 b8N N8b7 Na6+ Kf7 Rdd1 Bce5 Rb8 Bd5 Rd4 Ke7 Nc8+ Ke8 Na7+ Nd8 R8b5 N8b7 Be2 Bf3 Qh2 Bg2 Bf3 Bh1 Qg2
3n3n/BR2rrQ1/2k2q2/bbNP2pB/1Q4Kn/N4N2/B1nQ1N1b/3R1N1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 b4 f5 e4 g5 h4 a5 h6 c4 e5 c3 b6 a4 b5 c2 h5 a3 h7 a2 d6 Qf6 e6+ Kd8 h6 Qf7 e7+ Kd7 e8B+ Ke6 b7 Kd5 d7 Ra4 d8N Be6 b6 Ra8 Na3 Ne7 Rb1 a1N Ne2 Nbc6 b8N Qf6 b7 Bd7 Nf7 Ra7 Nd6 Ng6 Na6 Nd8 b8Q Bb5 Ng3 Rf7 Nde4 Bb4 Nac5 Ba5 Nf2 Re7 d4 Rf8 h8Q Rff7 Qg7 Nh8 Bd2 c1B h7 Nc2 Bb4 Be3 Be2 Bd2 Nf1 Bc7 Ba5 Be5 Bc7 Ba5 Bb6 Bc7 Bc4+ Kd6 Nd7 Kc6 Ba7 Bd6 Qd2 Be5 Kg2 f3+ Kh3 Bh2 Ba2 f4 Rb4 Qg6 Kg4 Qf6 Nd3 f2 N7c5+ Rd7 Rb3 f3 Rb4 Re7 Bh5 Rf7 Rb2 Rde7 Rg1 Ba4 Rb7 Bb5 Ng3 f1N Nf2 Ng6 h8N Nfe3+ Kh3 Nf5 Nf1 Nfh4 Kg4 Rf8 Nf7 Nh8 Nd6 Rff7 Ndc4 Ne6 Qbf8 Nd8 Ne5+ Kd6 Nh3 f2 Nf3 Kc6 Ne4 Rc7 Qfb4 Rcd7 Nc5 Rde7 Ne3 f1N Nf2 Ng3 Rd1 Nh1 Nf1 Re6 Qe1 Re8 Qed2 Ree7 d5+
b1n1N2N/b1R1R1rb/4nP1B/1Q1r4/qRR1p3/3bRb1r/1k3B2/4KQNB b - - 0 1 illegal: No possible last move
1Bb1N1N1/2Rp1b2/Qn1b3R/r1krN3/B1n4R/1Q4Pr/2r5/KN1rQ1Nq b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 b4 e5 f4 Ke7 c4 Kd6 Kc2 h5 Kb2 e4 b6 e3 c5+ Kc6 b5+ Kd5 f6 d3 b7 h4 f7 e2 g3 e1R c6 h3 g6 d2 b6 h2 c7 a4 g7 Nh6 g8N Qe7 f5 Re3 f6 Qd8 Bb5 Na6 b8N Bd6 f8N Nb4 f7 Qh4 b7 Kc5 Ng6 Rd3 f8Q Ng4 Qe1 d1R Ne5 Nd5 Qh6 Nb6 Bf4 a3+ Ka2 Qh3 Ba4 Ra5 Qg6 Ne3 Na6+ Kd4 b8Q Nec4 Qb7 Rd5 Qe6 Rc3 Qc6 Qf1 Qb5 Rh3 Qb3 Bb7 c8R Rcc1 Rf8 Bc8 Nc7 Kc5 Ne8 Qf3 Rf6 Rc2+ Qb2 Qg2 Rh6 Qe4 Nc3 Qf3 Rc1 Qh5 Ka1 a2 Qb3 Qh4 Ngf3 Qh5 Nb1 Qh4 Rf1 h1B Ng1 Bf3 Rf2 Bh5 Rh2 Bf7 Qg6 Qh5 Qgd3 Nd2 Qa6 Ndc4 Bg5 Qh4 Bd8 Qe4 Bc7 Qh1 Bb8 Nb2 Ne7 Rc3 Re6 Rh5 Rh6 Kd4 Ng8 Rcc5 Rc3 Ra5 Rc6 N2c4 Rf2 Rh2 Rf5 Rh3 Rc7 Rd2 Rfh5 Rg2 Nc6+ Kc5 Rh4 Nd2 Kb2 a1R Na3 Rd1 Nb1 Ndc4+ Ka1 Rc2 Ne5+
rq2r2Q/P1NN2n1/1RB4R/brN2BK1/RB6/p1b1n3/2kR2br/2r2RQ1 b - - 0 1 illegal: No proof kernel
3n2B1/bn1R2b1/R1N4Q/BqQn1r1r/6K1/1P2B1B1/1r1NpQb1/NB3r1k b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 g4 Ke5 b6 h5 g5 c5 b3 a5 f6 h3 f7 c4 b7 a4 d6 c3 d7 h4 g6 a3 d3 a2 g7 c2 Be3 c1N Bb6 h2 Na3 h3 Ba7 Nc6 Qc2 Qb6 d8B Nf6 g8B Nd5 Qc5 Qb5 Ba5 Rh5 Nc2 Rf5+ Kg4 Bg7 f8Q Nd8 d4+ Ke4 b8B e5 f4 Bb7 Nf3 Nd3 Rd1 Bc6 Na1 Bb7 Rg1 h1R Nd2+ Ke3 Bg2 Kf2 Be4 h2 Qfd6 Bc6 Qh6 Bb7 Rg3 Rf1 Rf3+ Kg2 B7b6 Rf7 f5 h1R f6 Rh5 B8c7 Rf8 f7 Kh1 Beh7 e4 Rf6 e3 Bg3 e2 Rc6 Nb2 Bb1 Nc4 Ba7 Nd6 Ra6 Bc6 B7b6 N6b7 Ba7 Re8 f8Q Re5 Qf2 Rf5 B7b6 Nb4 Ba7 Bg2 d5 Bd4 d6 Nd5 d7 Rc8 Qb4 Rc2 Qc5 Rb2 B7b6 Nf7 d8N Be3 Nc6 Nfd8 Nc2 a1B Ba7 Ra2 B7b6 Bg7 Na1 Rc2 Bbc7 Bed4 Bcf4 Ra2 Be3 Rb2 Qc3 Bb6 Qc5 Ba7 Ne4 Nf4 Rd7 Nd5 Nd2
1N1B1b2/R3rRBb/RBN2n2/3qN2P/n3BQ1K/Q2b4/3r2pk/2B1rn1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 b4 Kd6 e4 Ke5 h4 f5 d4+ Kd6 b6 a5 h6 c5 b5 g5 b7 a4 h7 f3 Kg3 g4 h5 a3 b6 c4 Bg2 f2 Qd3 f1B Nd2 a2 Nb3 c3 Nf3 c2 Na5 Nf6 Nc6 f4+ Kh4 g3 Nfe5 Na6 b8N f3 b7 f2 Qa3+ Nc5 Rg1 Bc4 Rf1 Bd3 Bf3 Rg8 h8B Ra7 Bg7 Bf5 Bg2 Bh7 Bh1 Kc7 Bf3 g2 d6+ Kb6 d5 Na4 d7 Kc7 Bch6 c1N d6+ Kb6 Bg5 Ne2 B5h6 Kb5 Bc1 Qa5 d8B Ng3 d7 Nh1 Bb6 Rh8 Ng6 Kc4 d8B Qd5 e5 Rg8 e6 Rh8 Rg1 f1N e7 Rg8 e8R Rh8 Rb1 a1R Be4 Ra2 Re6 Rd2 Ra1 Rg8 Na6 Rh8 b8Q Re7 Qf4 Rg8 Na7 Rh8 Nb8 Rg8 Bbc7 Kd4 Ne5 Rh8 Ra6 Rg8 Qh2 Ke3 Nac6 Kf2 Ra2 Nfg3 Rd1 Nf1 Qf4+ Kg1 Re1 Rh8 Re2 Rg8 Rf2 Rh8 Bb6 Rg8 Bh8 Rg3 Ra7 Re3 Bg7 Re1 Qb3 Nc3 R2a6 Na4 Qb2 Qa5 Qa3 Qd5 Qg5 Kh2 Rf3 Ng4 Rf7 Nf6 Qf4+
1b4NN/3rr1n1/N5pb/2k3n1/K1nrRBR1/NQ2RQ1B/P2bB3/1b1q3N b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 f4 Kd7 h4 Kd6 d4 e5 Kd2 c5 Kc2 b5 Kb3 e4 h5 e3 f6 g3 a6 g6 f7 g2 a7 b4 f5 e2 f6 e1B h6 c4+ Ka4 c3 h7 c2 Rh4 b3 Be2 b2 Bf4+ Kd7 d6 Kc6 d7 c1R d5+ Kb6 d6 Bb4 Rg4 Rc3 Na3 b1N Qb3 Rc7 Nh3 g1B Nf2 Nc6 Nh1 Nd2 Re1 Bh6 f8R Nce7 f7 Kc5 Re8 Nc4 f8Q Nf5 Re3 Bh2 Re4 Rb8 a8B Nf6 Bc6 Rg8 h8N Rbb7 Re3 Ba5 Bg2 Bd2 Bh3 Nh7 Qf7 Ng5 Re4 Qf8 d8N Re7 d7 Ng7 Nc6 Qd8 Nb8 Rc7 Re3 Bb7 Qf6 Be4 Qfc3 Bb1 Na6+ Kc6 Re4 Rb7 Qf3 Kd5 Be3 Bb8 Bf4 Ra7 Bd3 Rf8 R1e3 Rf6 Bdf1 Rd6 Be2 Kc6 Bhf1 Rd4 Bh3 Qc8 d8N+ Kd5 Nc2 Rad7 Ndf7 Qd8 Na3 Kc6 Nd6 Kd5 Ne8 Kc6 Nb4+ Kc5 Nf6 Qf8 Ng8 Qf5 Re6 Qc2 R6e4 Qd1 Na6+
7N/2B2nB1/B1Pb2RQ/B5np/k4r2/Br1N3r/K1b1nQb1/1Q2nRRq b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 h5 f4 e5 c4 d5 Kc2 Kd7 Kb3 a5 g4 a4+ Ka2 e4 b4 a3 f6 e3 b6 Kc6 c5 d3 g6 Kb5 b7 d4 f5 e2 f7 e1N g7 Nc6 b8B Ne5 f6 Ra6 g5 Rb6 g6 Rc6 Nh3 Ne7 g8Q Qd7 g7 Rd6 c6 Qg4 Ng5 Nd5 Qh7 Qf3 g8R Bh3 Nd2 Nc7 Nc4 d2 Rg6 d3 Qh6 Bg2 Rg1 Rd4 Nb2 Ne6 Bc7 Rf4 Ba5 Bd6 f8B Nf7 Bg7 Rb8 Qc2 d1N Qb1 Qh3 Be2 Qh1 Bf1 Nfd8 Nf7 Ng5 Nh8 Rb6 f7 Nc3+ Kb3 a2 f8Q Ne2 Ka3 d2 Nd3 Re4 Qf2 d1B Kb2 Ka4 b5 Rb8 b6 Bc2 b7 Rg4 Qe3 Ndf7 Qf2 Rg8 b8B Rf4 Bbc7 Re8 Bcd2 Re3 Bdb4 Rh3 Ba3 Rff3 Qd1 Rf4 Rb1 a1R Rc1 Rb1+ Ka2 Rb3 Ra1 Rfb4 Qb1 Rg4 Ne5 Nd4 Ba6 Rf4 Nd3 Ne2 Qb2 Nef3 Raf1 Ne1 Qb1
8/2R1brp1/1B2R3/Q1Q2k1N/1n1nb1b1/bNPB1qr1/1Q1B1Nn1/QK4Qr b - - 0 1 illegal: No possible last move, all moves rejected
N4Q1n/2rrNPpQ/1rn3qN/5R2/K1kbB2N/QRRb1N2/r3bn2/6B1 b - - 0 1 illegal: No possible last move, all moves rejected
3b4/Rr2Pnr1/R1Q4k/1Bn1nN1b/1q3R2/1r1NBp2/2Q2Q2/KnQQ2Bb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 f5 d4 Kf7 Kd2 g5 Kc2 Kg7 Kb2 c5 e4 a4 b6 c4 h6+ Kh7 b7 g4 e5 f3 e6 g3 h5 f4 e7 g2 d6 f2 d7 f3 d5 Nf6 b5 Qc7 d8Q Rg8 b6 Bg4 d6 Qd7 Rh4 Qf5 d7 Ra7 Qe8 Qc5 d8Q Ne4 Qc6 Ng5 Qdc8 Nd7 b8Q Bg7+ Nc3 Bd4 b7 Rg7 Ne2 g1N Qh2 Nf7 b8R Nde5 Rb6 Rb7 Nf4 Ne2 Be3 a3+ Ka2 Qa5 Ra6 Bb6 Nd3 Bd8 Nb5 c3 Nd6 c2 Qg2 c1R Qh1 Bf5 Rf4 Bg6 Qcc2 Qb6 Q8c6 Rb1 Qg2 Rb3 Qcc1 Kh8 h7 Qb4 Qdc2 Ng1 Be2 f1B Qf2 Bg2 Q2d1 Bh1 Bf1 Rg8 Qfc2 Kg7 h8B+ Kh7 h6 Bh5 Bg7 Kg6 h7 Ne2 h8Q Kg5 Bh6+ Kg6 Bg1 Rg7 Rb1 Nc3+ Ka1 a2 Qf2 Bb6 Qhc8 Bd8 Rb2 Nb1 Q6c2 Rc3 Qc6 Kh7 Rb3 Kg6 Rba3 Rb3 Re4 Kh7 Be3 Kg6 Rf4 Kh6 Be2 Qc4 Ra7 Rh7 Ne1 Rg7 R3a6 Qb4 Bb5 Rd3 Qb3 Rc3 Kb2 a1N Ka2 Rd3 Qbc2 Nb3 Kb2 Rc3 Nd3 Nc5+ Ka1 Rb3 Nf5+
5bN1/p1R1Q1rR/2Nb1BkQ/q1P2r2/bRQ1K1n1/nR6/RnrB2B1/6b1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 h4 e5 c4 g5 b4 g4 f4 g3 c5 g2 f6 Qe8 h6 Be6 h7 Bd6 b6 Bh3 b5 Nh6 h5 Na6 f5 Bb8 b7 Qc8 b6 Qd8 Qg4 Rg8 h8B Rg7 Nd2 Nc7 Ne2 g1B Ne4 Bg2 Bd2 Nb5 Ra2 Bd6 b8R Na3 b7 Bf8 Rh3 Bf3 Bg2 Qa5 Rc8 Rb8 Qf4 Ng4 h6 Ra8 h7 Rb8 N2c3 Bd1 Nb5 Ba4 Rc6 Rd8 b8R Rd6 Rc7+ Rd7 Ke2 d3+ Kf3 d4 Rbb7 Rg5 Bg7 Re7 h8R Rd7 R8h7 Rh5 Bc1 d2 Rg3 d1R Bd2 d3 Nd4 Rc1 Rb4 Rc2 Rh3 Ke8 f7+ Ke7 Nf6 e4+ Kg3 e3 Kf3 e2 Ke4 e1B Ng8+ Kd8 f6 Bg3 Qf1 Bgd6 Rg3 Rf5 Qc1 Rb2 Qc4 Rc2 Bf4 d2 Rgb3 d1N Bd2 Rg5 Bh8 Nb2 Bg7 Bdh2 Bh8 Rdd5 Bg7 Rdf5 Bh8 Be7 Bg7 Bhd6 f8Q+ Be8 Qff7 Bf8 Qfe6 Bb5 f7 Ba4 Qh6 Rg6 Rc6 Kd7 Bf6 Rg7 Rc8 Rd5 Nc6 Ke6 Kf3 Kf5 Rc7 Bfe7 f8Q Re5 Qd8 Bf8 Qe7 Rd5 Qh2 Kg6 Ke4 Rf5 Qh6+
1k1QnKB1/p2Q1PQ1/1Bb3Qn/3r3R/1r3n1N/q1Q5/1R2bB1r/1rN3bR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 h5 Kd4 c5+ Ke5 Kc7 b4 e6 g4 h3 d4 h2 f4 c4 d6+ Kb7 b6 c3 d7 c2 b5 h4 f6 h3 f5 Rh4 d5 Qc7+ d6 Bg7 d8Q Nh6 g5 Rd4 g6 Bh8 g7 Qc3 g8Q Qa5 d7 Rc4 Kd6 e5 Ke7 e4 f7 e3 f8Q e2 f6 e1R+ Ne2 Rg4 Qg6 Qc3 Ra5 Rf4 Qfg7 Re4+ Kf8 Na6 Be3 c1N Nd2 Rb4 Nf3 Kb8 b7 Nc7 Bf2 Qa3 Nh4 Nd3 Nc1 Nf4 Bc4 Ne8 Bg8 Re5 f7 Rd5 Qc3 Bd4 Qdf6 Bb6 d8B Bg4 Qfg7 Be2 Qdd3 Bd4 Bb6 Be3 Qdf5 Bd4 Qd7 Be3 Rd1 h1B Rf1 Be4 Rh1 h2 Re1 Rb1+ Qe7 Rh5 Bd4 h1R Bc5 Rh2 Bg1 Re5 Qee6 Kc7 b8R Nd6 b6+ Kc6 b7 Kc7 Bd4+ Rc5 Rb5 Rc4 Rh5 Ne8+ Bc5 Bd4 Be3 Bd5 Rh1 Ra4 Bf2 Bg2 Bg3 Bg1 Bf2 Ra5 Rd8 Bgf3 Rd2 Rb8 Rb2 Rb5 Qd5 Rb4 Qdf5 Rd8 Qfe6 Bg4 Qd5 Bd7 Qd1 Bdb5 Qa4 Rd5 b8Q+ Kd7 Qbd6+ Kc8 Bb6+ Kb7 Qdf6 Bd7 Qac6+ Kb8 Qce6 Bdb5 Qd7 Bc6 Qfd8#
b1Q2N1B/q1Q1K1N1/n2Q3b/1Rb1RPn1/b1Rb2N1/1kp1r2R/3r1R2/1B4q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 a2 Ke6 h4 f7 h3 d6 Ra3 f5 Nf6 g7 Qe8 g8Q Rh6 b6 Ra7 b7 Bg7 f8N Ra3 Ne2 Rh5 Nbc3 Rh4 Ne4 Ra8 Nf4 Ra6 Nh5 Ra8 Nf2 Bh6 Bd3 Rd4 Bb1 Rd2 Ng7 Nh7 Ng4 Na6 b8Q+ Bb7 d8R Qf7+ Kd7 Ng5 Re8 e5+ Re7 e4 Qc7 e3 b3 e2 Bb2 Qf6 Re5 e1B Bc3+ Ka3 b4 Re8 b5 Bf2 b6 Ba8 b7 Bc5 b8R Re7+ Kd8 Qf7 d7 Bc6 Rc8 Ba4 Rf1 h1Q Rf2 h2 Qh8 Qg1 Qg8 Rb2 Qdd6 h1B Qb7 Rc2 Re6 Qg2 Qdb8 Nb4 Ng6 Rd2 Ne8 Qf1 Bh8 Qg1 Ng7 Bd1 Qe8 Kb2 Nf8 Bd6 Re3 Bc6 Rh3 Re3 Qe7 Bd5 Rc6 Bb3 Q8c8 Na6 Rc5 Bf3 Re5 Bc5 Qb6 Ba8 Qa7 Qg6 Qac7 Qb6 Ke8 Qb8 d8R Qa7 Rd3 Ka3 Qed6 Kb4 Ke7 Ka3 Bc2 Ka4 Rc1 a1B Bb1 Bad4 Rdc3 Bd1 Ra3+ Kb4 Ra5 Ba4 Rc2 Kb3 Ra2 B4c6 R2a4 c3 Rc4 Ba4 Rb5+
8/1Rn4n/P1nb2BN/2kq3B/RN1nBN1n/KBQR1p2/b1Qr2q1/2B2r2 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 a4 Kd7 e4 b5 g4 c5 d4 f5 Kd2 h5 Kc2 h4 Kb3 f4 e6+ Kd6 a5 h3 g6 h2 e7 f3 e8B Na6 e5+ Ke7 g5 Be6 g7 Nf6 g8B Nh7 g6 Nb8 g7 Nc6 a6 c4+ Ka2 c3 Nh3 c2 Bh5 b3+ Ka3 b2 d6+ Kd7 Bd3 Ba2 Nc3 b1Q d5 Be7 Re1 h1N Nf4 Ng3 Be4 Nf5 Qd4 Nh4 e6+ Kc8 Qa4 Bf8 e7 Kd7 Rf1 Qa5 Rd1 Rd8 Bgf7 Rg8 Rd3 Rh8 e8R Be7 g8B Bf8 Bb2 c1N Bfg6 Nb3 Bc1 Qc2 Re5 Qg2 Re7+ Kc8 d7+ Kc7 d6+ Kb6 Bc4 Kc5 Rf7 Nbd4 Ncd5 Qad2 Qc2 b4+ Kb2 b3 Ka3 b2 Nb4 Qg5 Rg7 Qdg2 Re7 Qd5 Rg7 Rc8 d8Q Rc7 d7 Bd6 Qf6 b1N+ Kb2 Rb8 d8N Nc3 Ka3 Rd7 Nf7 Re8 Nh6 Ncb5+ Kb2 Rdd8 Rb7 Nc7 Ka3 Re5 Bef5 Re1 Be4 Rf1 Qe5 Nde6 Qec3 Ned4 Kb2 Bb3 Ra4 Ba2 Ka3 Re8 Bef5 Re2 Be4 Rd2 Bb3+
B2B2k1/b1q1BB2/n2q3R/3rb2K/1b4NQ/1r2NqQ1/1PR3pB/N1n2R1b b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 g5 Kg3 c5 e4 a5 d4 f5 h4 Kf7 h5 a4 h6 c4 h7 a3 b6 c3 e6+ Kg7 d6 a2 b7 c2 e7 Qa5 e8N+ Kf7 d5 Nf6 e5 Qb5 d7 Qc5 d8R Ra3+ Qd3 Qd6 Nh3 Na6 b8B Rb3 Nc7 Nd7 Nf2 Bb7 Rh6 Ndc5 Bg2 Ba8 Bd2 c1B Na3 Be7 Qf3 Nd3 Rc8 Rd8 h8Q Bc6 Rb1 a1Q Nc2 Qa5 Bb4 Be3 Na1 Ba7 Rd1 Nc1 Rf1 Bd4 Qf6+ Kg8 Bc5 Bc3 Qf4 Ba8 e6 Be5+ Bf3 Bf8 e7 Qab6 e8B Qb7 Nb5 Qbc7 Na3 Bb7 Nc4 Be7 Kg2 g3 Kh3 g4+ Kh4 g2 Kh5 g1B Qh4 g3 Ng4 Rd7 Ba3 Ba7 Nce3 Ba8 Bh1 Rd8 Qf2 f4 Be4 f3 Bf7+ Kf8 Qe1 f2 Bg2 Qcd7 Rc2 Q7c7 Rh1 f1Q Bf3 Qd3 Rf1 Qe4 Bg2 Qf3 Qc3 Qdc5 d6 Bc6 d7 Q5d6 Bg6 Kg8 Bc5 Rf8 d8B Rf4 Be8 Rd4 Qd3 Rd5 Bb4 Qdd7 Bd6 Bf8 B6e7 Qdd6 Bf7+ Kg7 Qd4 Qd1 Rf5 Qf6 Bf3 Rd7 B3d5 Qa5 Qh3 Bf4 Bbd6 Qc7 Qe5 Qd4 Bc4 Bh1 Qh4 g2 Bcd5 Bg3 Bc6 Qd1 Rf1 Qf3 Ba8 Bf4 Ba3 Rd5 Beb4 Be7 Be1 Bd6 Bg3 Kf8 Bg6 Kg8 Bh2 Bg3 Bb4 Be1 Bc5 Bb4 Be8 Rdd3 Qf4 Be5 Qfg3 Rd5 Bce7 Qfd6 Bf7+
nr3n1B/1Rn2brQ/q1k5/b1NRQ2Q/Q2K3Q/3N3n/p2P3b/1BBR1q2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 g4 a5 f4 h5 b4 c5 d6 a4 b6 e4 g5 h3 f6 h4 f7 a3 f5 h2 f6 a2 b5 c4 b7 c3 b6 c2 g6 h3 g7 Ra7 Qf3 Na6 b8R Nc7 b7 Na8 Kd4 e3 Qg4+ Kc6 d7 e2 Qh5 e1B Nc3 Qa5 d8Q Ne7 g8Q Be6 Qgh7 Ng6 Nf3 Bb4 f8Q Qa6 f7 Bg3 Bd3 Ba5 Qb4 Nf8 Na4 Bb3 Rd1 h1N Rb1 h2 Qdh4 Nf2 Rd8 h1Q b8Q Bh2 Qbe5 Nh3 Nc5 Qf1 Rd5 Bc4 Ne1 Rc7 Bb2 c1N Bf5 Nd3 Bc1 Ndf4 Ned3 Rb7 Qa3 Rb8 Rb7 Rg8 Qb4 Rg7 Be4 Nd7 f8B Bb3 Be7 Nf8 Bf6 Bc4 Rd8+ Nd5 Qa4+ Qb5 Bg6 Ndc7 Rd7 Bf7 Rd5 Rg8 Bh8 Rg7 Ne1 Ne8 Bb1 Nec7 Qc4 Qb6 Nd3 Qa6 Qa4+
6qB/B1k2n2/1b4n1/1R3qBQ/b1BNB1R1/6Pr/QK1bqbNp/1NR1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 c5 Kd2 a5 Kc3 h5 b4 f5 g6 c4 b6 a4 g7 f3 d6 f2 d5 a3 e5 a2 b5 h4 b7 f4 b6 f3 g3 h3 e6+ Ke8 d7+ Ke7 Bg5+ Kd6 e7 h2 e8B Ne7 g8Q Rh3 Ne2 Ng6 Nf4 Nc6 b8R Nce5 b7 Kc7 Ng2 Bc5 Kb2 Nf7 Bd3 f1Q Be4 f2 Qh5 Qd3 Rc1 f1Q Bf6 Bf2 Bh8 Qg5 d8N Bd7 Nc6 Qfd1 Nd4 Ba4 Bb5 c3+ Ka3 c2+ Kb2 Q1e2 d6+ Kb6 d7 Kc7 Ba6 Qc4 Bb5 Qf5 Ba6 Qcd5 Bad3 Ra6 Bc4 Re6 d8B+ Kd6 Bg5 Kc7 Qf8 Qd8 Qa3 Qg8 Nf3 Bb6 Nd4 Re8 Rf1 Re6 Rf4 Re7 Rg4 c1B+ Kc3 Bd2+ Kb2 Qef1 Rd8 Qd1 Rd5 Qe2 Rb5 Re6 Nc3 Re5 Rc1 Re8 Nb1 a1B+ Ka2 Bac3 Qb3 Bb4 Kb2 B4c5 Qa2 Re6 Nb3 Bf2 b8B+ Kd7 Ba7 Kc7 Nd4 Qd3 Bc6 Re1 Bb7 Qe2 Be4
1b1KbR2/2N1r1nk/5NrN/nn1R1B2/2B5/R2Qq1P1/bB1n1p1Q/N4N1q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 f5 b4 Kf7 e4 Kg7 d4 a5 b6 c5 b7 a4 g6 h4 b5 h3 d6 h2 e5 c4 e6 a3 d7 c3 e7 c2 e8N+ Kh6 d5 a2 d6 Rh7 b6 Qh4 d8N Ra7 d7 Bd6 g7 Ra3+ Bd3 Bb4 Nf6 Na6 b8Q Ne7 g8B Nc7 b7 Nb5 Bb2 c1Q Ne2 Ra6 Na3 Bd6 Rf1 h1B Nf7+ Kg6 d8N Bd7 Nc2 Be8 Ne6 Qe1 Nh6 Qed2 Qd8 Bb8 Nc7 Qe1 Bgc4 Qh4 Rb1 a1N Qd2 Nb3 Na1 Na5 Rd1 Qe1 Ng3 Rf7 Nfe4 Kh7 Nf1 Rg6 Qd7 Qc3 Rbc1 Qe5 Rc3 Qh4 Ra3 Rfg7 Ke2 f3+ Ke3 f2 g3 Bg2 Bc2 Qh1 Q7d3 Qd4+ Kf4 Qe3+ Ke5 f4 Q2e2 Nf5 Kd5 f3 Nf6+ Kh8 Qed2 Re7 Q2e2 Ng7 Qed2 Ba7 b8R Bh3 Ra8 Bb8 Q2e2 Qd2 Kc5 Be6 Kb6 Qc3 Qde4 B6f7 Rd5 Qe3+ Qd4 Be6 Bf5 Bg8 Nd2 f1N Qh2 Qe5 Qc3 f2 Qd3 Qe3+ Ka6 Nb3 Kb7 Na5+ Kc8 Bgf7 Nb1 Nd2 Kd8 Ne4 Nd2 Be6 Nh5 Kh7 Nf1 Nd2 Nf6+ Kh8 Rd7 Ba7 Kc8 B8f7 Ba2 Bd5 Rb8 Bc6 Rd8+ Bg8 Rf8 Be8 Rb6 Bb8 Kd8 Na7 Rd6 Nb5 Nh5 Kh7 Rd4 Bb3 Rd5 Bc2 Bb3 Bb1 Bc4 Ba2 Nf6#
4N2B/1b2nQ2/1Q5n/4QB1Q/2b1BR1N/Q1p1qrP1/b1q1n2k/r1bRK2N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Ke7 e4 Kd6 b4 a5 g6 h5 g7 f5 b6 c5 b7 h4 b5 c4 b6 f3 Bb2 h3 Bd3 a4 Ne2 a3 Rf1 f4 Nd2 a2 Ng3 h2 Nh1 Nh6 g8B Bf5 Bh7 Nc6 b8Q+ Qc7 b7 Be6 Bf5 Ne7 Qe8 Ra4 Rb1 a1Q b8Q Qa3 Qf7 Rg8 Qdb3 Rg3 Rd1 Qc5 Bc3 Ra1 Qa3 Bg7 Bb1 Bf6 Qh5 Bg5 Qf8 Qb6 Qff7 Qb3 Bb2 Qc2 e5+ Kd7 d6 f2+ Ke2 Rf3 d5 Qa7 Bd4 c3 Be4 Kd8 d7 Kc7 Bf5 Qb6 d6+ Kc6 d8N+ Kd5 d7 Qa7 Nb7 Qc5 Rg1 f1B+ Ke1 Bc4 Nd6 Ba2 d8Q Bc4 Ng3 h1B Qb6 Ba2 Ne8 Bc4 Qfg6 Bf7 e6 Ba2 Bh8 Qe3+ Ne2 Bc4 Rf1 Bg8 Ng7 Ke5 Qe8 Rg3 Rf2 f3 Qef7 Rh3 Kf1 Ba2 Ng3 Kf4 Ne8 Bc4+ Re2 f2 Nf3 Ba2 Nh4 Bc4 Ne4 Rf3 Ng3 Ba2 Red2 Qd4 Ke2 f1N Ke1 Bc4 Rf2 Qdd3 Ne4 Ng3 Rf1 Ba2 Nf2 Ne2 Be4+ Kg3 Bf5 Kh2 g3 Nc8 e7 Bc1 Be4 Bg2 Nh1 Qd4 Qe5 Qe3 Qfh5 Bgc4 Qf7 Rf5 Rf4 Rf6 Bf5 Bb7 Qh5 Qb2 Bbe4 Qc2 Nc7 Rf7 e8Q Rf6 Qef7 Ne7 Bd7 Rf5 Ne8 Rf6 Rg4 Rf4 Bdf5 Rf3 Rf4
1q5n/rNqbn3/2nrq3/b1BBq1Q1/k1K3B1/1p1PBQ2/2RRQ3/1B2NN2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 e5 a4 b5 g4 c5 f4 h5 d6 Kc6 a5 b3 g6 b2 g5 b4 f6 Kb5 a6 h4 f5 b3 d7 h3 a7 h2 f7 Qb6 d8N Qe6 g7 Rh3+ Nf3 Rh6 f6 Ne7 g8B Kb4 g6 Nbc6 g7 Ng6 Bh7 Bd7 g8Q Nh8 Be2 Bg7 Rg1 h1Q f8Q Qh2 f7 Qg3 Nb7 e4+ Ke3 Bf6 Rg2 Bd8 Qg5 Qb8 Ne1 Ba5 Ra2 Rg6 Qe8 c4 Bg4 c3 Qf3 c2 Rf2 Qee5 f8B+ Rd6 Ke2 e3 Rh2 Nd4+ Kd3 e2 Be7 Kb5 Be4 Nc6+ Bd5 Rg6 Bc5 Rd6 Qee7 Ka6 Kc4 Qe6 Nc3 b1N Nd1 Nc3 Ne3 Qe5 Be4 Nd5 Nf1 Qe6 B1a3 c1Q+ Rc2 Qe5 Be3 Qe6 Qe8 Qe5 Bac5 Nde7 Ng2 e1Q Bd3 Q1g3 Ne1 Qcb2 Be4 Qe6+ Bd5 Qc7 Qeh5 Qbe5 Re2 Rg8 a8B Rg7 Rf2 Rf7 Qe2 Rh7 Qh1 Qgf4+ Qe4 Qf8 Q4f3 Qfb8 Nd8 Bc8 Rc3 Qcb6 Qd3 Nb4 Bc6 Nf5 Be8 Ra7 Bg6 Nc6 Nb7 Bd7 Qc2 Q6d8 Qb2 Nfe7 Bb1 Qdc7 d3 Qf8 Qd2 Qfb8 Rc2 Bc3 Nd8 Ka5 Nb7+ Ka4 Qdd1 Bb4 Rfd2 Ba5 Qde2
1K1QR2b/Q2r4/BQ1NN3/5qR1/bn1b2q1/p1rn1N2/NP4R1/n1BkNn2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 e5+ Ke4 Kg5 b6 a5 d6 h5 Kd5 Kf4 f6 h3 d7 e4 d4+ e3 f7 h4 g5 h2 b7 h3 f3 c4 g6 a4 g7 a3 Nc3 Qa5+ Ke6 Na6 d5 Rh7 d6 Ne7 b8Q Nf5 g8R Ng3 Qb6 Nb4 Qa4 Bg7 f8N Bh8 Na2 c3 Rg5 c2 Ba6 Nf1 Rg2 Bb7 d8Q Rd7 Nh7 Rc8 Ng5 Rc3 Rb1 Bc6 Ra1 Rf7 d7 Qf5+ Kd6 Bd4 Qaa5 Ba4 Qac5 Re7 Kc7 Rf7 Kb8 Rh7 Bd2 c1N Qce7 Nb3 Re1 Na1 Bc1 Nd2 Qec5 e2 Qcc7+ Ke3 f4 Rg7 N1f3 Rf7 Rhf1 h1Q Qca7 h2 Rfg1 Qg4 f5 Rh7 Rd1 e1B f6 Rg7 f7 Bh4 Ne6 Bf6 f8N Rh7 Nc5 Bh8 Nd3 Rf7 Rg3 Ke2 Ne6 Qg2 Rdf1 h1N Nde1+ Kd1 Rf2 Qh5 Rg5 Qgg4 Rfg2 Nf2 Rg8 Qgf5 Re8 Nfd3 Rg5 Qhg4 Rg2 Be3 Qc8 Bc5 d8N Bcd4 Nb7 Rd7 Nd6 Nf1 Qcd8
BB1bQ1kq/NKN1b3/4qR2/2Q1bBr1/r5BP/6qb/2BR2pn/3Q1R1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 g5 Ke3 f5 Kd4 Kf7 Kd5 a5 e4 a4 c4 f4 h4 g3 b4 g4 b6 f3 e6+ Kg7 b7 f2 e7 d6 e8B a3 b5 a2 c6 g2 e5 g3 c7 Rh6 b6 Ra4 e6 Qf6 e7 Qf4 c5 Rb4 c6 Rg6 Rh2 Na6 b8Q Bh3 c8B Ra4 b7 Rg5+ Bf5 Nh6 c7 Nc5 Kc6 d5 c8B d4 Nf3 g1B Beg6 d3 e8Q d2 Ne5 Kg8 Qa7 Nd3 b8R Ng4 Bg2 f1Q Kb7 Ndf2 Nc3 Qe1 Nb5 Nh1 Nc7 Bb6 Nc6 Qe6 Rb1 Ba5 Qc5 a1B Na7 Be5 Bc2 Qff6 Bgf5 Qh8 Bf3 Bb6 Re2 g2 Bb2 Bd6 Be5 Nh2 Rf2 Ba5 Rf1 Be7 Rb2 Bd8 Bf4 Bc3 B5g4 Be5 Bg3 Qc4 B8f5 Qe6 Rb6 Qa2 Rf6 Qe6 Qa1 d1Q Qc1 Be7 Rd8 Qe1 Rd2 Bd8 Qd1 Qf2 Kb8 Qe3 Ba8 Qf3 Bf4 Qg3 Kb7 Bb2 Ncb5 Bd4 Bb8 Be5 Qh5 Bfd6 Nc7 B6e7 Qe8+
1Bq3BQ/bb1q1n1r/1N1qQ3/1kN3N1/1B2rN1P/4n2R/K3p3/1NR1Qnq1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kd7 h4 c5 b4 e5 d4 a5 Kd2 g5 Kc3 c4 Kb2 g3 f6 c3+ Ka2 a4 f7 c2 f5 g2 f6 g4 d6 a3 d5 e4 b6 e3 b5 g3 b7 Ra5 b6 Ne7 Qe1 Qc7 Bc4 e2 Nf3 g1Q Ng5 g2 Rh3 Nbc6 b8B Ra4 b7 Nd8 Bd2 c1Q Bb4 Qgc5 Bb3 Bh6 f8Q g1Q f7 Nf5 Qg8 Rh7 f8Q Ng3 Qg6 Bg7 Qh8 Nf1 Bc4 Bf8 Qh6 Nf7 Qe6+ Kd8 d7 Q5d6 Nc3 Qd1 Rc1 Qcc5 Nb1 Qd3 Ba7 Kc7 b8N Bb7 d8N Bg7 Bb3 Bd4 Nd7 Qb5 Nb6 Qbd7 Nc6 Qc4 Ne7 Qcc6 Bc4 Qc8 Ng6 Qc6d7 Nf4 Bc5 Ka1 a2 Kb2 a1N Bb3 Q6e7 d6+ Kc6 Bb8 Nc2 Ba2 Nce3 Ka1 Qdc7 d7+ Qed6 d8N+ Kb5 Kb2 Q7d7 Kb3 Be4 Nb7 Bd4 Nc5 Bb7 Bd2 Ba1 Bc3 Re4 Bb4 Be5 Ka3 Bd4 Bb3 Bf6 Ka2 Bd8 Na8 Bb6 Bd5 Ba7 Nb6 Rg7 Bb3 Rh7 Qg4 Nh6 Bg8 Nf7 Qe6
3qN1b1/1n1Nr3/rB6/B1Nn3r/2B2bpP/1R2Q1q1/1rQ2QNk/N1K1b2R b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 Kf6 d4 a5 Kd2 e5 b4 c5 d6 g5 b6 c4 d5 e4 b7 g3 d7 a4 b5 g2 d6 a3 b6 g4 Qc2 a2 Nh3 g1B Na3 Qc7 d8Q+ Ne7 d7 Rh7 Qe8 Na6 b8N Ra7 d8B Rh5 b7 Bc5 Rb1 a1R Rb3 c3+ Kd1 e3 Bc4 Ra2 Bd2 e2+ Kc1 Bf2 Be1 Qd7 Bb6 Nc5 Na6 Qd8 b8N Be6 Nc7 Bg8 Nba6 Nd5 Qe3 Nb7 Nc5 Ra6 Bd2 Rb2 Ne8+ Kf7 f6 Bh6 f5 Be1 Nf4 Bg5 Ng2 Bf4 Qcd3 c2 Bda5 Bc3 Qd4 e1Q+ Qd1 Qg3 Qd3 Kf8 f7 Be1 Nc7 Kg7 f8N Kh6 Nfd7 Kh7 f6+ Kh6 Qf1 Kg6 f7 Kf5 Ne8 Bf2 Kd2 c1R+ Nc2 Re1 Qg1 Re2+ Kc1 Be1 Qd2 Re7 f8Q+ Bf7 Qh6 Be6 Na1 Bg8 Nd3 Ke4 Qf6 Kf3 Qfd4 Qf2 N3c5+ Qe3 Qd3 Kg3 Qc2 Qd3 Qf1 Qc3 Rg1 Qe3 Qf2+ Kh2 Rf1 Qh3 Qde3 Qg3 Rh1+
2B1r3/N1R1r2n/5kbb/B1n5/3rrPQ1/3QN1BK/4qBpR/qB1b2NR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 b4 d5 c4 a5 c5 e5 b6 g5 c6 g4 b5 d3 b7 d4 b6 a4 f6 a3 c7 a2 h6 e4 h7 e3 h5 g3 h6 e2 Na3 g2 Nc2 Nc6 b8N Nge7 b7 Qe8 Be3 Ra3 Rc1 Rg8 h8B a1Q h7 Nb4 Nc6 Rb3 b8B Bh6 Na7 Bf5 c8B Ned5 Bg3 Na6 f4 d2+ Kf2 e1R Bd3 Bg6 Qg4 d1B Bg7 Rb5 h8R Rb7 Bd2 Qe5 Ba5 Re8 Ne3 Rbe7 Bb1 d3 Rc7 d2 Bf8 Nc5 Rh7+ Bg7 R7h2 Bh6 Bg7 Bb3 Kf3 d1R Kf2 Rd4 Bf8 Kg8 f7+ Kh8 Kf3 Nf6 Bg7+ Kh7 f8Q Bd1+ Kf2 Qe4 Qf7 Qd3 Qb3 Qa6 Qc3 Kg8 Qc2 Kf7 Qd3 Nh7 Bf6 Qb5 Bfh4 Re2+ Kf3 Qbb2 Bf2 Qd2 Bhg3 Kf6 Qh5 Qe1 Kg4 Qf1 Kh3 Re1 Nf5 R1e4 Ne3 Qe2 Qg4
NR2Rq2/K1nRb3/2q5/2Q1rB2/2Q1P2R/Rqkp1b1B/r4QN1/q1B1n2r b - - 0 1 illegal: No possible last move, all moves rejected
1b1KR3/Q2N4/R2B1R2/r2Rn1b1/q1PqN1Q1/r1Q1RBqq/2p4B/3knb2 b - - 0 1 illegal: No proof kernel
6rb/Q6B/1NR3Qb/n2Q4/1pnknQBK/B2b2Nb/2Q1q1qP/2R3rR b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kd7 d4 Kd6 f4 e5 Kf2 b5 Kg3 c5 a5 g5 h6 e4 f6 b3 a6 c4 a7 e3 f5 g4 f7 c3 f6 b2 h7 b4 Kh4 g3 Bh3 c2 Nd2 b1B Ba3 c1B Nc4+ Kc7 d6+ Kc6 d7 Kd5 Bg4 g2 Qc2 e2 Nb6+ Kd6 d5 Ke5 d6 e1N Ne2 g1Q Ng3 Bg7 f8R Qe7 d8Q Bch6 d7 Nc6 Qc7+ Kd4 d8Q+ Bd7 Qe8 Qe2 Qeg6 Qgg2 f7 Nd3 Rc8 Nf6 f8Q Ne4 Qff4 Rg8 h8Q Na5 Qb8 Bf5 Rc6 Ne5 Qd8+ Bd7 Qhh7 Bh8 Qhe7 Rc8 a8B Nec4 Qef7 Rb8 Qdc7 Rg7 Qa7 Rbg8 Bb7 Ba2 Rac1 Bb1 Qa2 Bd3 Qc2 Be6 Bc8 Bd5 Bcf5 Be6 Qgg5 Bd7 Bh7 Be6 Qfg6 Bf5 Bh5 Bh3 Bg4 Rf7 Qfb8 Rf1 Qbf4 Rg1 Qd5#
N3R3/3R4/NR1nn2r/Kb1q3P/1BB2rk1/3Qbr2/p3Bb1R/N2Qb1Rq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 h4 Kf6 d4 Kf5 Kd2 c5 Kc3 g5 e4+ Kf6 b6 a5 d6 g4 d7 c4 b5 a4 e5+ Kf5 h6 a3 d5 f6 h7 g3 b7 f3 d6 f2 Kb4 g2 b6 a2 e6 c3 h5 c2 e7 Ra7 e8B Qc7 d8Q Qc6 Nf3 g1B Na3 Kg4 Rh2 f5 Nc4 f4 Be2 f1R Ba3 c1B Bf7 Bce3 Ne1+ f3 Nc2 Ne7 d7 Na6+ Ka5 Nf5 b8R Nd6 b7 Bgf2 Nb6 Qd5+ Bc5 Be7 Na8 Beh4 Qd3 Rf8 h8R Bhg3 Bg8 Rf4 Rd1 Bh4 Na1 Bhg3 Bf7 Bh4 Re8 Nc7+ Kb6 Raa4 Re1 Rae4 Ka5 Re6 Bg8 Rh6 Be6+ Qf5 Bc4 Ne6 Rd1 Qd5 Rb1 Rg1 Rf1 Rg3 Qd1 Qd3 Bb4 Be1 Qb6 Qd5+ Qb5 Rh3 d8R Bhf2 Rd7 Rg3 Rh7 Bd7 Rf7 Bc6 Rd7 Rh3 Rbc8 Rg3 b8N Rh3 Na6 Rg3 Qc5 Bb5 Rb8 Kf5 Bcd3+ Kg4 Rfh1 Bg1 Qcc2 Rh3 Bc4 Rg3 Qdd3 Rh3 Bf1 f2 Rb6 Rhf3 Be2 f1Q Qcd1 Bgf2 Rg1+ Qg2 Rf1 Qh1 Rg1+
Nk1Kbr1b/n1RBBQ1B/3R4/2N2P2/3qp2n/q1r1n3/1RN1q1N1/N3Q1n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kc4 c5 g4 Kc7 b4 a5 d4 e5 f4 a4 d6+ Kb7 Kd5 e4 g5 h3 g6 h2 b6 h4 g7 h3 f6 a3 b5 a2 d7 c4 Ke6 c3 f5 c2 f7 Bd6 f8Q Nf6 g8B Bb4 d5 Bd6 Ba3 c1Q Nd2 Bg3 d6 Qc6 Qf7 Qcc7 Qe1 Nd5 Rc1 a1N Nb3 Qg5 Nf3 Qgd8 Bh7 Bf2 Nh4 Be3 Ng2 Nc2 Na1 Nc6 Bc4 Kb8 b7 Qb6 Rb1 Qf8 Rb2 Qc5 Bb3 Bc1 Ba4 Nde3 Kf6 Qb6 d8R N2d4 d7 Nf3 Be7 Nh4 Rg1 h1N Ke6 Ka7 b8N h2 Na6 Nf2 Nb4 h1Q Nbc2 Qd4 b6+ Kb8 b7 Qh2 Rf1 Na7 Rh1 Kc7 b8N Nh3 Bb5 Ng1 Na6+ Kb7 Nc7 Rb8 Na8 Rg8 Bg5 Qa3 Be7 Rf8 Bc6+ Ka6 Ba4 Rb3 Bc6 Bb7 Rc8 Rc3 d8N Bd2 Bd7 Bc6 Nb7 Ba4 Rc7 Bb5 Nf4 Qe2 Ng2 Bc1 Bc8 Be8 Bd7 Nb5 Rh2 Ka7 Nc5+ Kb8 Rh3 Bd2 Rg3 Bc1 Rg6 Bd2 Bd6 Bc1 Ke7 Bd2 Kd8 Bc1 Ra2 Na7 Be7 Bd2 Qd1 Be1 Rd6 Bg3 Qc1 Be5 Qe1 Bh8 Rb2+
QR1BRB2/bn4Q1/4r3/1r2pq1q/1N2P3/1nqRQ2R/1kbqB1K1/Nn4R1 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 Kf2 Kd7 d4 Kd6 b4 a5 h4 e5 g6 c5 b6 f5 h5 f4 e3 c4 g7 f3 b7 a4 b5 a3 h6 c3 h7 c2 b6 a2 Nh3 g3+ Kg1 f2+ Kg2 Ne7 g8Q Nbc6 b8R Na5 b7 Ra6 Be2 Bf5 Nd2 Qc8 Nb3 Qc3 Bb2 c1Q Qd3 Q1d2 Rag1 a1N Nf4 Bh6 Rh3 f1Q+ Kh1 Qb1 Qg7 g2+ Kh2 Rc8 h8Q Rc5 Re8 Rb5 b8R Nb7 Qe4 Qf1 Nd3 Bg6 Qhf8 Qf5 Nb4 Qh5 Qef3 Bc2 e4 Be3 Ba3 Bf2 Qe3 Qf5 Nc1 Nb3 Qfh8 Nc6 Qhg8 Nca5 Q8h8 Nc4 Qhg8 N3a5 Nb3 Rab6 Na1 Nb3 Bc1 Na3 Bb2 Nb1 Ba3 Rc6 Q8h8 Rc7 Qhg8 Re7 Q8f8 Kc7 d6+ Kb6 d5+ Ka5 d7 Ka4 d8B Re6 d6 Qh5 d7 Qf5 Qd3 Ba7 Qe3 Qh5 Qfh8 Qf5 Na2 Qh5 Bf8 Qf5 Nb4 Ka3 Bf6 Kb2 d8R Qh5 Rd3 Qf5 Bd8 Qh5 Rf1 Qf5 Rff3 Qh5 Rg3 Qf5 Rg4 Qh5 Kg3 g1Q+ Kf3 Qgc1 Kf2 Qcd1 Rg1 Qf1+ Kg3 Qff5 Qhg8 Rd6 Qd5 Re6 Kg2 N7a5 Qa8 Nb7 Kh2 Qh6 Kg3 Qhh5 Kg2
2Nk2Bb/1Qnr3N/b3rRn1/1B1P1RKN/2q2N1r/pN2R3/2rn3B/3Qq3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Kf3 c5 Kg4 a5 b4 h6 f4 e4 d4 e3 b6 a4 b7 c4 d6 c3 d7+ Ke7 b5 a3 d5 h5+ Kg5 e2 g4 e1R b6 h3 f6+ Kd6 f5 c2 Ne2 h4 Bf4+ Kc5 Nd2 c1N Bh2 Qc7 d8N Qc6 f7 Qe8 f6 Qb5 Nf4 Kd6 Nb3 Kd7 Nh5 Bg7 f8R Qc4 f7 Rh7 Ne6 Na6 b8Q Bh8 b7 Nc7 Nef4 Ne7 Be2 Ng6 Rf1 Rg7 Rf3 Ra6 Re3 Re6 Qa8 Ke7 b8N Ba6 Nd7 Rf1 Qc6 Rf2 Nb6 Rh7 Bd3 Rc2 Qb7 Rg7 Nc8+ Kd7 Bg3 h2 Rb1 h1Q Bh2 h3 Rb2 Rc3 Rf2 Qe1 Rff3 Rc2 Be2 Qcc3 Bb5+ Qc6 Re5 Rh7 Rf5 Rg7 Re8 Rh7 Re7+ Kd8 f8N Qc4 Re3 Rg7 Ref7 Rh7 R7f6 Rd7 Nd4 Nb3 Nh7 Nd2 Nb3 Nf8 Kh6 Ng6 g5 Nh4 Bg1 h2 g6 h1R g7 Ng6 g8B Rh3 Bh2 Rh4 Kg5
2rk4/QQbB1K2/2Nq1Rn1/1Qqp4/B2Nb3/qBn2BqP/2N2r2/1R3bB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kf3 d5 Kf4 f5 c4 g6 e4 d3 b4 a4 b6 a3 e6 d2 Ke5 g5 c5 f4 h6 g4 b7 f3 b5 a2 e7 f2 c6 g3 b6 g2 h7 Bh3 c7 Qc8 Qb3 d1Q Qb5+ Bd7 h3 Ra3 Nf3 g1Q Be2 f1B Be3 Na6 b8N Rc3 b7 Rc6 Nd4 Rc4 Nbc6 Nf6 b8Q Nb4 Qa7 Qb7 c8B Qd2 Bf3 Nh5 Na3 Qdf2 Nac2 Bf5 Rb1 Nf4 Kf6 a1Q e5 Qa3 Rh2 Qfg3 Rf2 Rg8 h8Q Qd7 Qg7 Be4 Ba6 Qc7 Qab7 Kd7 Kf7 Na2 Qa7 Nc3 e6+ Kd6 Bc8 Ng6 Bd7 Rb4 e8B Rb2 e7 Q1h2 Na5 Qcc5 Nac6 Ra2 Bf5 Rh8 Bed7 Rb2 e8B Rg8 Qaa6 Kc7 B5g4 Ra2 Bd1 Rh8 Rf6 Bd6 Bg1 Rb2 Bgf3 Bf4 N2b4 Rf2 Bb3 Be5 Nbc2 Bd6 Ne5 Kd8 Qab7 Bc7 Bf5 Be2 Qh6 Qb6 Qf8 Bf1 Qfc5 Qf4 Qb5c6 Qhg3 Qa5 Qbc5 Qaa7 Rg8 Qcb6 Rh8 Bea4 Rg8 Ng4 Qfd6 Qb5 Rh8 Bd7 Rf8+ Kg7 Ke7 Ne5 Ra8 Na1 Kd8 Kf7 Rb8 Nac2 Rc8 Nec6+
3B1Bk1/1r4r1/3N4/2PNb1QB/1rRpqQR1/3q1r1n/2n1N1bK/n1R2RR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 d5 Kf2 g5 Kg2 e5 b4 a5 c4 g4 b6 a4 f6 g3 h6 d3 b5 d2 h5 e4 f5 e3 c5 a3 h7 d4 h6 a2 b7 e2 b6 e1Q Be2 Na6 b8R Qe8 b7 Be7 Nc3 Bd6 Bh5+ Kf8 f7 Nf6 Qg4 d1R Bg5 Bc7 Nge2 Ra7 Rc1 a1N Nd5 Ne4 Bd8 Ng5 Rg1 Nh3 Qg5 Qb5 Kh1 Rg8 h8N Rg7 h7 Qd3 Ra8 Bd6 b8Q Rb7 Ra7 Nb4 Ra4 Nbc2 Rc4 Be5 Qc7 Bf6 Qcf4 g2+ Kh2 Be5 Rc3 Rg6 Rc4 Kg7 f8R Rd2 Nec3 Rf2 Nf7 Qee4 h8R Rf3 Nd6 Rb4 Rf6 Bb7 Ne2 Ba8 Rh7+ Kg8 Rh6 Rg7 Rhg6 Bb7 Rf7 Bc6 f6 Ba8 Rgf1 g1R Re7 Bb7 f7+ Kh7 f8B Kg8 Qh4 Ba8 Rg4 Rgg3 Qfg5 Rf7 Qf4 Rf3 Qg5 Bc6 Re6 Rfb7 Rg6 Rc7 Qf6 Qee3 Rh4 Rg3 Nb6 Rb7 Q6f5 Bh1 Nd5 Rf3 Rgg1 Bg2 Qg5 Qee4 Rg4
1Bn1N3/q4N2/2KR2Bk/1npnR1NN/3q4/1bbB1rP1/N1R1Q3/4rQnr b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 Kf7 d4 Kg7 e4 h5 b4 a5 e5 c5 g3 a4 g6 a3 b6 a2 d6 h4 b5 h3 e6 h2 d7 Ra4 e7 Qc7 d8N Rh4 e8N+ Kh6 b7 Kh5 g7 Ra3+ Bd3 Qf7 d5 Bd7 b6 Bc8 d6 Ne7 g8B Be6 d7 Bb3 Qf1 Kh6 Bh7 Bg7 Bg6 Nc8 Nc3 Nc6 b8Q N6a7 b7 Nb5 Qe5 Qc4 b8R Qd4 Nge2 Bh8 Rb1 a1Q Rb2 Qa2 Rg1 h1N Rc2 Nf2 Ne6 Rh1 d8N Nh3 Rb6 Bf6 Be3 Bg7 Rg2 Bh8 Ng5 Ng1+ Kf2 f3 Nf4 Bf6 Nh5 f4 Rd6 Bg7 Ke1 f2+ Kd2 f3 Bf4 Qa1 Na2 Bh8 Qee2 Bg7 Qfe1 f1R Q1f2 Rb1 Qff1 f2 Rh2 Re1 Rh3 Qd5 Ke3 Bc3 Rh2 Qf7 Ke4 Qd7 Rh4 Qa7 Be5 Qd1 Rf4 Qa1 Rf5 Qd1 Bf4 Qa1 Re5 Qb2 Qh3 f1N Qg2 Ne3 Qgf1 Nc4 Kd5 Ne3+ Kc6 Nd5 Bd2 Ra4 Be3 Rf4 Bc1 Rf3 Bd2 Bd4 Ba5 Bc3 Bc7 Qa1 Bb8 Qd1 Rf6 Qd2 Rfe6 Qe3 Rd6 Qd4 Ndf7+
1R1Q1B1K/Q5B1/1q2r2R/Bpn3q1/1B3R1P/2N4r/bN1qkbBr/5rnQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Kf4 c5 a4 b5 d4 e6 a5 g6 h6 c4 d6 b3 d5 c3 d7 b2 h7 c2 a6 Nh6 d6 Qc7 d8R Nd7 a7 Qb6 Nf3 Nc5 d7 Nf7 Ne5 Ng5 Bg2 Nf3 Nc3 b1R Nd3 Ng1 Bd2 c1Q Nb2 e5+ Kg4 g5 Kh5 g4 f4 g3 Ra4 Be7 Kh6 e4 h3 Bb7 Rb8 e3 d8Q e2 Rc4 e1R Rd4 Kf7+ f6 Ke6 Kg7 Kf5 f7 Bh4 f8B Bd5 Bd6 Re3 Qe1 Rhe8 h8B R8e6 Kh7 Bb3 Bg7 Ba2 Kh8 Qc2 Qf2 Rf1 Be1 Qd2 Rh2 Kg6 f5+ Kh5 f6 Re2 f7 R2e3 Bb7 g2 Rf4 Re2 Qd4 Bf2 f8B R2e3 Rc8 Rb8 a8Q Rg3 Be4 Rb7 Rb8 Rf7 h4 Rh3 Rf6 Kg4 Rh6 Rff3 Qdd5 Re3 Qa7 Re2 Bde7 Kf4 Qdb7 Ke3 Bc6 Nd3 Bb4 Nc5 Ba5 Nf3 Be4 g1Q Qbd5 Qg6 Rg2 Qg5 Rg4 Ng1 Rf4 Bg3 Bf3 Reh2 Bg2 Bf2 Nca4 Qe2 Beb4 Qd2 Nc3 Rf3 Bh3 Rg3 Qh1 Rf3 Nb1 Ke2 Bg2 Rfh3 Nc3+
R2q2k1/3Nq1Q1/2qb2NK/pRn3nQ/1r1BBP1B/1b1r2B1/1n3q2/2Q1B1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Kg4 c5 Kh5 h3 g4 h2 d4 c4 b4 e4 f6 e3 g5 h6 d6 e2 d7 e1Q b6 a6 b5 c3 b7 c2 b6 Be7 d5 Nc6 b8B Qc7 d8B Na5 g6+ Kf8 b7 Qe3 d6 Ra7 f7 Qg3 d7 Bd6 Nc3 Kg7 Nf3 Nc4 Ne5 Nb2 Be3 c1N Bd3 Nb3 Ne2 Nc5 Rg1 h1Q+ Bh4 Qe4 d8B Be6 Bd4 Bb3 Nf4 a5 f8R Qec6 Be4 Qe7 Qc1 Ra6 f3 Qf2 Rb1 Rb6 Re8 Rb4 Nd7+ Qf6 Be7 Qc8 Bc7 Qd8 b8Q Rh7 Qb5 Rh8 Be3 Qf7 Beg5 Qfe7 Bd2 Rh7 Be1 Rh8 Bg3 Rh7 Bb6 Nf6+ Kh4 h5 Ba7 Qc7 Ra8 Qcd8 Qe2 Kh8 g7+ Kg8 Ng6 Rh8 f4 Nh7 Kh3 h4 Kg4 h3 Kh5 h2 B5h4 h1Q Kh6 Ne6 Bd4 Nc5 Bc2 Qc6 Be4 Kf7 Qg4 Re8 Qh5 Ng5 Ra1 Kg8 Ra4 Rc4 Rb4 Rf8 Rb5 Rb4 Bd2 Rf5 Be1 Rd5 Be3 Rd3 Bd4 Kf7 Nde5+ Ke6 g8Q+ Kf6 Qh8+ Ke6 Nd7 Kf7 Qe5 Kg8 Qg7+
b3r1n1/2NRn1K1/1NqR2RP/3rNBN1/Nk2Qpq1/1Bbn3Q/8/2q3Bn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 h4 g5 d4+ Kb4 e4 c5 h6 f5 b6 c4 b7 g4 h5 a4 h7 f3 d6 f4 d5 f2 d7 a3 d6 g3 Qd3 g2 Be3 a2 Nc3 Qh4 d8N Qe7+ Ne6 Kb3 d7 Ra6 d8R Rc6 Nf3 g1Q Rd7 Qd8 Na4+ c3 Neg5 Qg3 Rd1 a1Q Rg1 Be7 Bh3 f1N Bf5 Na6 b8N Nc7 Na6 Ne8 Nc7 Ka2 b4 Ka3 b5 Qg4 b6 Bc5 b7 Nd6 b8N Bb7 Qc4 Nc8 R1d6 Bb4 h6 Nge7 Kf6 c2+ e5 c1N Qe4 Ng3 Kg7 Re8 h8Q Rc5 Bd4 Bc6 e6 Nd3 Ne5 Ng8 e7 Ba8 Rg2 Ra5 Bg1 Rd5 Qh7 Kb3 Qf3 Nh1 Qh3 Qc1 Rg3 Rf8 e8B Nce7 Bf7 Bc3 Rg2 Kb4 B7e6 Rc5 Bb3 Qc8 Qg6 Rd8 Qe6 Qa6 Qd5 Re8 Qe4+ Qc4 Nc6+ Ka3 Na7 Rd5 Nc8 Qf3 Nh7 Qc6 Ncb6 Qe2 Rgg6 Qg4 Nc4+ Kb4 Ng5 Qb5 Ncb6+ Qc4 Qe1 Qc6 Qe4+
1Qr2qNB/1r2k1qB/3r2P1/4b1Kb/B2NR1p1/Q5R1/2N1RNN1/q3nq1n b - - 0 1 illegal: No proof kernel
1nBn2R1/Qqb5/n1brBPq1/R2R4/2K1pk2/q4NR1/2R2B1N/N1qr3Q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 g4 Ke5 b4 a5 f4+ Kf6 d6 e5 d7 h5 g5+ Kg7 f6+ Kg6 b6 Kf5 b7 c5 f7 a4 g6 h3 b5 h2 b6 h4 g7 a3 Bh3+ Kg6 f5+ Kg5 f6 e4+ Kc4 a2 Nf3+ Kf4 Rg1 h1Q Na3 Rh6 Nc2 Ne7 g8B Qc7 d8R Nec6 Rd5 Ra6 Nh2 Nd8 Rg3 Qf3 Qh1 Bd6 f8R Bd7 Bge6 Bc6 Rfg8 Qa3 Bhf5 h3 d4+ Qe3 Bb2 Qa3 Rc1 Qh7 Na1 Bc7 Rc2 Qg6 Re5 Rh7 d5 Rd7 Bd4 Rd6 Bf2 Ra5 Ng4 h2 Bc8 Rb5 Bfe6 Rb1 Rg5 Rd7 d6 Rd1 Qe1 h1Q Nh2 Qhf3 Qh1 Qa8 Rd5 Qfa3 Rdg5 Na6 b8R Qb7 Ra8 Nb8 Ra6 Qf3 Rd5 Qa3 Nb3 a1N Ra5 Rg7 d7 Rf7 Ra2 Nc2 Na1 Nb4 Re2 N4a6 Rc2 Qa7 b7 Re7 Bg4 Re6 Bf5 Rd6 Bg4 Ne6 d8N Qb6 Nf7 Nd8 Ne5 Qa7 Nb3 Qb6 Nef3 Qa7 Kc3 c4 Bge6 Qb6 Rcd2 Qb5 Kd4 c3 Na1 Qb6+ Kc4 c2 Re2 c1Q+ Rc2 Nd7 b8Q Qb7 Qa8 Ndb8 Qa7
1bk5/6nB/1Q1NbPb1/4q1pR/NKn5/1BN1B2q/q1Rr1N1q/Qr1NQ3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 h4 d5 b4 Kd7 c4 e5 f4 g5 b6 d3 Kc3 d2 b5 e4 b7 e3 h6 a4 b6 a3 c5 a2 c6+ Ke7 h5 e2 f6+ Kd6 f5 e1Q f7 d4+ Kb4 d3 h7 Qde7 h6 Qf6 c7 Bg7 f8N Qf7 Ng6 Kd7 Ne7 Qh5 Nh3 Qe8 Nc3 Qe6 Qe1 d1B Nf2 d2 Bd3 Ra5 Ned5 Qe2 Ne3 Rd5 Rh5 Bc2 Ned1 Ne7 Be4 Rf8 h8N Be5 h7 Qf1 f6 Qh3 Nf7 Nf5 h8Q Ng7 Bh7 Bg6 Nd6 Bg3 Rb1 a1Q Rb2 Qe5 Rc2 Qa2 Qg8 Rd3 Qb3 Rd8 Qa3 Bf4 Qb2 Rg3 Qa1 Rg1 Nb2 d1Q Be3 Qe2 Nbd1 Qb1+ Ka3 Nc6 b8Q Bg3 b7 Na5 Qa7 Rh1 Qb6 Qa2+ Kb4 Nc4 b8N+ Ke6 Nfe4 Qeh2 Na6 Kd7 Nef2 Bb7 Nde4 Kc8 Nac5 Rd2 N5a4 Bd5 Nd6+ Kd7 Qd4 Be6 c8B+ Kd8 Bb7 Bf4 Bd5 Kc7 Nf5 Kc8 Qb6 Qd4 Qg1 Bb8 Ndb2 Ne5+ Bc4 Qd5 Bb3 Nc4 Qgd1 Qde5 Nd6+ Kd7 Qe2 Rhd1 Qe1 Rb1 Qd4 Kc7 Nbd1 Kd8 Qb6+ Kd7 Ndb5 Kc8 Nd6+
b3Q1N1/2Rn2N1/1Bq2P2/1p1n1b1Q/NRq5/KBb3rR/b3n3/2rRRQk1 b - - 0 1 illegal: No possible last move
rNq1k1n1/1BB5/b2R1p2/R3Qrb1/1Nq4N/BR1P1bnK/bN6/1Q2n1N1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 b4 c5 e4 a5 g4 h4 Kg2 f3+ Kh3 a4 e5 f6 d6 c4 g6 f2 b6 a3 b5 c3 d3 a2 d7+ Ke7 g7 c2 g5 Ra7 b7 Rh6 g6 Qe8 b6 Nc6 b8B Na5 b7 Rh5 e6 Qf7 d8R Ra8 Ba3+ Rc5 Nc3 c1Q Bg2 f1B Bc7 Be2 b8N Nc4 Bb7 Nd2 Na4 Bf3 Rd6 Ne4 Nb2 Ke8 Rh2 Qc2 Qb1 Rf5 e7 Ng3 Re2 Qfc4 Re4 Qc6 Rb4 Q2c4 Rb3 Qd7 Bc6 Ba6 Bb7 Nh6 g8Q Qc8 Qe6 Ng8 Qe5 Bh6 g7 Bg5 Ba5 Kf7 e8N Bd5 Nc7 Be6 Kh2 h3 Nd5 Ke8 Nb4 Nh5 Kh1 h2 Kg2 h1B+ Kh3 Bf3 Bd8 Ng3 Bc7 Ne7 g8N Bf7 Nh6 Be6 Qc2 Ng8 Rf1 a1N Qb1 Nc2 Rc1 Rf4+ Nf5 Ne1 Rc2 Rg4 Nh4 Rf4+ Kh2 Rf5 Kh3 Qb5 Rc5 Qc4 Ra5 Qc6 Qc5 Bec4 Rc3 Ba2 Rb3 Qd5 Qd4 Qc4 Qe5+
2nRr2B/4N1K1/1Q2Pr2/B3r1Q1/p1b5/2NqQB2/Bq2Rr1b/N2B1bkn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 d4+ Kc4 e4+ Kb4 g4 c5 d6 a5 b6 h5 g6 c4 g5 f3 d5 Kc5 b4+ Kb5 d7 h4 g7 h3 d6 h2 b7 f4 g6 a4 Qd3 f2 Ra2 f3 Bg2 f1Q Qe3 f2 Re2 c3 Na3+ Kc6 Bb2 c2 Bf3 c1R Nc2 Na6 b8N+ Kb5 Na1 Kc4 b5 Rc2 b6 Qc1 b7 f1B Nc6 Rh6 b8Q Nc5 Qb6 Ba6 Ne7 Nd3+ Ke6 Rd2 Kf7 Nf2 e5 Qb1 Bd4 Qb8 d8Q Qd3 d7 Bb5 Nd5 Bd6 Qdg5 Ne7 g8B Nc8 d8B Ba6 g7 Rf6+ Ke8 Rb2 Be6 Qb7 g8B Bc7 Beg4 Ra2 Qa7 Qb2 Bf7 Rb8 Kf8 Rb5 Ne7+ Rd5 e6 Re5 Kg7 Bb5 Bg6 Bd6 Nh3 Ba6 Rg1 h1R Nf4 Rh8 Nfd5 Nh1 Qb6 Re8 Nc3 Re4 Qc1 Rff4 Qba5 Qbc2 Reg2 Qdd1 B4f5 Kd3 Kh7 Be2 Bh8 Bc4 Kg7 Qcd2 Qb4 Ke3 Ba5 Qc2 Rd1 Bf1 Bfh5 Qb1 Bfg4 Rc2 Be2 Qb2 Bhf3 Bc7 Rg4 Kf2 Qb6+ Qe3 Rd8 Rf6 Bd1 Bh2 Bh7 Re5 Re4 Qd4 Re1 Rce2 Bb1 Rd2 Re3 Qd3 Ba2 Rc2 Qh5 Kg1 Qg5+ Rg2 Re2+ Qe3 Bg4 Rgf2 Qd2 Qe4 Qde3 Qd3 Bf3+
r2nRBK1/2Q3Rr/4p3/PR5B/1n1rnR2/1RNN1B1Q/k2q1b2/q2n1bN1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Kc4 h5 g4 c5 d4 h4 f4 b6 a4 h3 a5 h2 f6 b3 f7 b2 g6 Rh3 f5 Na6 f6 Nb4 g5 Rh7 g7 Be6 g6 Na2 Be2 Rh4 Qf1 Qc7 Bh5 Nb4 Ra3 Qd8 Qh3 Bc8 Rb3 Nh6 Nc3 b1N g8R Bg4 g7 Be2+ Qd3 Bf1 Ba3 Bg2 Qh3 Nd2+ Kb5 Ne4 Kc4 Kc7 d6+ Kc6 d7 Bf1+ Be2 Kd6 d5 Ke5 d6 e6 Kb5 c4 Bf3 Be7 f8N Kd4 Ng6 Nf7 Ne5 Rf4 Nd3 Rg4 Na2 c3 Re8 c2 g8B c1N Nc3 Ne2 Bh7 Bf8 Bg6 Bh6 Bh5 Be3 Rg8 Bf2 Rg7 Rf4 Bc1 Rg4 Bh6 Rh4 Rg8 Rg4 Bf8 Rh4 Rg7 Rg4 Ka4 Kc4 Ka3 b5 Kb2 Qe8 d8R Qd7 Re8 Nd8 f7 Rh4 Be7 Rf4 f8R Rg4 Rf4 Rh4 Nd5 Nc3 Bf8 Nd1+ Ka3 Rg4 Nc3 Rh4 Nge2 Rg4 Rg1 Rh4 R1g5 h1R Ng1 Rh2 Bg6 Rh7 Bgh5 Rg2 Rgf5 Rg4 Re5 Qa7 d7 Qe3 Ref5 Qd2 Rd5 Na2 Rdf5 b4+ Ka4 Rh4 Rb5 Rg4 Rb2 b3 Rb1 Nb7 d8Q b2 Qe7 Nd8 Qc7+ Kd4 Rb3 Nb4 Kb5 Rh4 Ra1 b1Q Ra2 Ndc6 Rab2 Qa1 Kb6 Kc4+ Kb7 Ra6 Kc8 Ra8+ Kd7 Rg4 Qb8 Nd8 Ke7 Rg5 Qb6 Rd5 Qd6 Rd4 Qd7 Ndc6+ Kf7 Nd8+ Kg8 Nc2 Rb5 Nb4 Rc2 Kb3 Qc7 Ka3 Rc1 Kb3 Rb1+ Ka3 Nd5 Ka2 Rb2+ Ka3 Rb3+ Ka2 Nc3+
KN2n1k1/N3R1N1/3PBq2/NpQ5/1Qn5/2qnr3/3qbNRB/1Qbrq1R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 c5 Ke4 e5 f4 g5 h4 b5 d4 b3 a4 c4 f6 g4 h6 g3 h7 c3 d6 c2 Kd5 g2 f5 e4 a5 e3 h5 e2 h6 e1N d7 b2 a6 Nc6 a7 Nd3 Rh2 Nc5 Nd2 b1Q Bc4 Ba6 Nh3 g1Q Rg2 Qf2 Nb3 Ne6 Na5 Qb8 d8N+ Ke8 f7+ Ke7 f6+ Kd7 Bf4 c1Q Bh2 Qfb2 Nf2 Bb4 f8Q Qg3 f7 Ba3 Qc5 Qbc3 f8N+ Ke8 Nd7 Qgd3 Nb8 Ne5 Ndc6 Kf7 Qa4 Qbc2 Qab4 Q1b2 Rag1 Qde2 Kd6 Kf8 d5 Nf4 Kc7+ Kf7 Kb6 Qee1 d6+ Kf8 Be6 Bb7 Kc7 Nf6 Kb6 Rg8 h8Q Ne8 Qh7 Q2d2 Qb1 Nfd3 h7 Rg3 h8R+ Kg7 Rh6 Kf8 Rh7 Re3 Rc7 Qa1 Re7 Bc1 Qa3 Bc8 Qab4 Bd7 Kb7 Nc4 Nd4 Qab2 Nf5 Qf6 Ng7 Qbc3 Na6 Rc8 a8N Bc6+ Ka7 Bf3 Nb8 Be2 Nb6 Rc6 Ka8 Rc7 Bg4 Kg8 Nc8 Rc6 Na7 Ra6 Nb7 Ra1 Na5 Ba3 Q1b2 Rd1 Qb1 Bc1 Be6+
2N3n1/1QQ1Q2n/1PrbNp2/2r2q2/BnQ3n1/R1R3Bb/NB1Q3q/1b2K2k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 d4 Kd6 b4 a5 e4 c5 e5+ Kd7 e6+ Kd6 b6 g5 b7 c4 h6 g4 h5 g3 b5 a4 b6 g2 h7 f3 h6 f6 e7 c3 Ne2 g1Q Ra3 c2 Qd2 Bf5 Nbc3 Qc8 Na2 Ra5 Bb2 c1N Nf4 Bb1 Ne6 Nd7 Rh3 Qh2 Bb5 Qc2 e8Q Qf5 Qc8 Be7 Qc4 Nf8 Rc3 a3 Ba4 Rc5 b8B+ Rc7 Nb4 a2 Rg3 a1N Na2 Ncb3 Rh3 Na5 Ra3 Nc6 Rg3 Kd7 d6 Rc8 d5 f2+ Ke2 f1B+ Ke1 Bh3 Rgc3 Nb3 Bc7 Nc5 Bb8 Na6 Bc7 Ke8 d7+ Kf7 d8Q Kg6 d6 Kh5 d7 Bd6 Qe7 Ne5 d8Q Nb4 Bb8 Rc6 Qdc7 Ng4 Qb7 Bc5 Bf4 Bd6 Qec7 Ne7 Bg3 Rg8 h8Q Rg5 Qg8 Nh7 Qgd8 Ng8 Qf8 Na6 Qfe7 Nb4 Be5 Kh4 Bf4 Nf8 h7 Rh5 h8N Nh7 Nf7 Rg5 Be3 Kg3 Bf2+ Kg2 Bh4+ Kh1 Bg3 Bf4 Nd6 Be5 Nb5 Bd6 Na7 Qff2+ Kd1 Rc5 Nc8 Qf5 Ke1
2r1NNq1/2n3Q1/1Pp2BBr/3N1nN1/B2R4/KQ1b2b1/1nN4q/RQ2kbb1 b - - 0 1 illegal: No possible last move
5krR/b3qnqP/3qb3/nQNr3p/BK1RR1Q1/B5Q1/Q2N4/1QN1n2q b - - 0 1 illegal: No proof kernel
Q1b3nB/2N2BP1/3Rrkq1/1n2rp1Q/2B1Rq2/1N1RB1b1/1B2r2N/1K1n1n2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 c5 Kd2 h5 Kc2 a5 b4 f5 g4 f3 d6+ Kf7 b6 f2 d7 a4 b5 c4 d5 h4 d6 a3 e5 h3 b7 h2 e6+ Kg7 b6 c3 g6 a2 e7 Rh3 e8N+ Kh8 g7+ Kh7 g5 Kg6 Be3 Rg3 Nc7 Na6 b8B Bb7 Nf3 Rg4 Bc4 f1N Nbd2 Ne7 g8B Qe8 d8R Re4 d7 Re6 Nb3 Bc8 b7 Kg7 g6 Kf6 Bf7 Ng8 Bba7 Bd6 b8B Bg3 Bad4+ Re5 Rg1 h1N Nh2 Nf2 Qh5 Nd1 Rg2 Qe6 Rd2 Qd6 Kc1 c2 Rd3 Qe6 Rb1 a1R Bb2 Ra2 Bba7 Rb8 Bad4 Rb6 Re8 Rd6 Re7 Rb6 d8Q Qc6 Qd5 Qe8 Qa8 Re6 Nb5 Qc6 Rd7 Nc7 Rd6 Nd5 Nc7 N5c3 Ra1 Nb5 Bdc3 Ra4 Ra3 Rb4 Ra4 Qb6 Bd5 Re4 Bc4 Qc6 Ba7 Re1 Be3 Re2 R6d4 Ke7 Bf4 Rc5 Ra6 R6e3 Bg5+ Qf6 Rc6 Re6 Re4 Rd5 Bgd2 Qg5 Bh8 Rde5 g7 Qg6 Rcd6 Kf6 Ba3 Nde3 Kb2 c1Q+ Ka2 Nd1 Bb2 Ba6 Bh6 Bc8 Bf4 Qe3 Kb1 Qf3 Bd2 Qf4 Be3
5BN1/2nN2pK/r2N4/1RQ1Q3/qnB5/r1bQ1Qrb/1n2P1kB/QqrR4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 d4 f3 h4 c4 h6 f6 h5 c3 h7 c2 h6 a4 b6 f2 b5 a3 b7 a2 b6 Nd7 Kf5 Ra7 Kg6 f5 b8Q+ Qc7 b7 f4 Bg2 f1N Ba3+ Nc5 Nd2 c1Q Nc4+ Ke7 d6+ Ke6 d7 f3 d8Q f2 Rb1 a1R Qg5 Ng3 d5+ Kd7 d6 Ke6 d7 f1R d8Q Q7f4 Nf3 Nge4 Nd6 Nd2 Rb5 Nd3 Qc5 Nf6 Ne5 Nc4 Nd7 Nb4 Qd3 Ra5 Qf3 Ne8 Qba7 Ra6 b8B Be7 Qac7 Rf8 h8Q Bf6 h7 Bc3 Qg8+ Rf7 h8N Nb2 Kh7 Qb1+ Ng6 Rc1 Rd1 Ra2 Q7a7 Nc7 Qh8 Rf5 Ne7 Ra1 Qde8 Rg5+ Qd3 Qd4 Qhf8 Rg3 Bb7 Qc4 Qf3 Qb3 Qeh5 Qa4 Ng8 Ra2 Nb6 Bd7 Qh2 Ra1 Bd5+ Ke5 Qa8 Bh3 Bc4+ Nbd5 Qfg2 Kf4 Nd7 Nb4 Qgd5 Bd4 Qhg2 Kg4 Qe5 Bc3 Qgg1 Bf1 Qac6 Kh3 Qf3 Bg2 Qgf1 Kh2 Qe1 Bh3 Ne8 Nc6 Qde4 Qd3 Qed5 Rg2 Qcd4 Rcb1 Bf8 Ra3 Q4c5 Nb4 Qd2 Rba1 Qef5 Rc1 Qc2 Qe4 Qb1 Qec2 Qa2 Qb1 Qa1 Rg4 Qdd4 Rgg6 Q3d3 Kg2 Qf7 Na8 Bh2 Rg5 Qde5 Nc7 Nd6 Rg3 Qf3+
Q1b1N1r1/KRqn1qpN/PR1n1Q2/b5RR/k6n/2N3Q1/2q1Bnr1/2BR4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 b5 Kd4 c6 Kc5 e5+ d6 b3 a4 e4 h4 b4 d4 e3 f4 e2 a5 e1N d5 b2 f6 b3 f7 Rh7 a6 Qe8 Kb6 c5 h6 c4 f5 c3 h5 c2 f6 Ra7 Qf3 Qe7 Be2 Ng2 Ra5 Ne3 Nd2 b1N Ne4 b2 Qg3 Rh8 h7 Qe8 h6 Nf1 Rh5 Be7 f8R Nfd2 f7 Rc7 Rc5 Rc6+ Ka7 Na3 Ra5 b1Q Nf6+ Kd8 d7 Nf3 Rg5 Bb4 Rb5 Nh4 Rb6 Ba5 Rb7 Ke7 d8R+ Nd7 d6+ Ke6 Rb6 Nc4 Rb7 Qe7 Ne8 Ngf6 Rb6 Rg8 h8Q Qa2 h7 Ng4 Rb7 Nf2 Rb6 Nde5+ d7 Kd5 Rb7 Kc5 Rb6 Bb7 Rb8 Rh6 d8Q Bc8+ R8b7 Qc7 Qf6 Rg6 Nh3 Qd7 Nf4 Nd6 Nd5 Qf5 Nc3 Nd7 Nc7 Qfd5 Rd8 Qe5 f8N Qf7 Ne8 Qf5 Bd2 c1Q Bf4 Qe5 Bd2 Qc2 Bc1 Ndf5 Qh3 Qc7 Qg3 Nb8 Rd1 Nd7 Bh5 Kc4 Bf3 Nd6 Bh5 Bb4 Be2+ Kb3 Qg1 Nh1 Rgb5 Nf2 Qg2 Rg4 Rg5 Rg3 Qgf3 Rg1 Qg3 Rg2 Ne6 Rf8 Qg8 Qh5 h8R Qhg6 Rhh5 Qf7 Na2+ Ka4 Qh8 Q7c4 N8c7 Ba5 Qg8 Re8 Nf8 Rd8 Nh7 Q4c3 Rb8 Bb7 Qe8 Qcc4 Qe4 Rg8 Ne8 Bc8 Qa8 Qc5 Rb7 Qc7 Nc3+
2Rb1N2/k1n1RPb1/5Q1r/Bq6/2Q3p1/RBbnR2R/n2r1B2/1KNq2Qb b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kd7 h4 c5 b4 Kc7 d4 Kb7 Kd2 a5 Kc2 e5 h5 g5 d6 e4 b6 g3 d7 a4 d5 a3 b5 a2 d6 c4 h6 g2 f6 e3 f7 e2 h7 e1Q f5 g4 f6 c3 Ne2 g1B Nd4 Nc6 Bc4 Nb8 Rh3 Qf1 Bb3 Bh2 Ne6 Be5 Be3 Bf4 Nd2 B8h6 f8Q Ra5 f7 Na6 Bf2 Qe8 d8Q Qg2 d7 Bg7 Qb4 Ne7 Qg1 Nc5 Qc4 Qf3 Nf8 Nd5 Qf6 Bc7 d8B Nd3 Rg3 Kb8 b7 Qee2 Re1 a1B Kb1 Ra2 Rh3 Qe5 Re3 Ka7 b8R Bb7 Rc8 Ba5 Rg3 Nc7 Rh3 Qc5 Re7 Qe2 Rhe3 Bh1 b6+ Kb7 Nf3 Rd2 Nd4 Qb5 Ra8 Qf3 Ne2 Bb2 Nc1 Qd1 Ra6 Kb8 b7 c2+ Ka2 Bbc3 Ra7 Rg8 h8R Bb6 Rh7 Rh8 Rhh3 Rh6 Ra4 Bba5 Ra3 Ka7 b8R Qe8 Rc8 Qb5 Ne2 c1N+ Kb1 Na2+ Nc1 Rh7 R7e4 Rh8 Be7 Rh6 Bb4 Na6 Ree8 Bd8 Ba5 Nc7 R8e7
2N2Q2/nQ2rP1p/1Qbr4/4nB1N/3B3k/KR1qR2R/1n2R2q/b1RnBr2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kf6 f4 c5 d4 e5 Kd2 a5 Kc2 h3 Kb2 e4 b6 e3 d6 a4 b5 h2 b7 e2 b6 e1N g5+ Kg7 g6 Kf6 g7 c4 d7 Qe7 d8R Qf7 d5 Ra6 d6 c3+ Ka3 c2 Ne2 Ra8 Qd5 Be7 Ra2 Ng2 Nbc3 Bd7 Be3 c1N Ng3 Nc6 b8Q Ra7 b7 Nd3 Re8 Qh5 Re2 Qh6 Nb5 Nce5 Bd4 Ne3 Bh3 Bf8 Rc1 Ra6 Na7 h1Q Nc8 Ne7 g8R Bc6 d7 Qd1 d8B Bg7 Ba5 Nb2 Be1 Qd3+ Qb3 Ned1 Re3 Qe4 Qb6 Qh4 Bg4 Qh2 Qa8 Ra7 b8R Rd7 Qab7 Qd3+ Bec3 Rd6 Nh5+ Kf7 f6 Kg6 f5+ Kg5 f7 Kh4 f8Q Bf6 Kb4 a3 Rg6 a2 Ka3 Bg7 f6 Rg8 f7 a1R+ Kb4 Bh8 Bf5 Ra7 Rg1 Rgg6 Rgg3 Rgf6 Be1 Bg7 Be6 Rf1 Bf5 Bh8 Q7a6 Rc7 Qab7 Bg7 Ra8 Bh8 Ra3 Rcd7 Rb3 Rc7 Na7 Nc8 Re6 Re7 Re2 Ng6 R6e3 Ne5 Ka3 Rd8 Nb5 Na7 Nd6 Bf6 Nc8 Rd6 Qa8 Bh8 Qab7 Nd7 Qg8 Na4 Bc5 Ba1 Bd4 Nab2 Qf8 Ne5 Rh3+
1RkNb1rB/1n1Np3/RB2Q3/qbN1Q2r/2r1R3/1Q6/2Q1P1r1/1qnKb1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1B3n2/1nQqp2n/2b4R/Qrk3PN/4B2N/1Q1r1QK1/QqR5/brn2RB1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 b4 Kd6 f4 c5 Kf2 h5 d4 a5 b6 c4 b5 h3 g5 h4 b7 c3 b6 h2 f6 h3 f5 c2 f7 a4 f6 a3 Bd3 a2 Qd2 Qc7 Nc3 Ra3 Ne4+ Kd7 d6 Kc6 d5+ Kd7 Nf3 Nh6 Nh4 Nf5 Ng3 Bg7 Be4 Rd3 f8Q Rh6 Rf1 h1R f7 h2 Nh5 Qd8 Bb2 c1N Bd4 Qe8 Rb1 a1Q Qa2 Bh8 Kg2 Qb2+ Rf2 Rf1 Qg8 h1N f8Q Nhg3 Kh2 Ng7 Qf3 Nc6 b8B Ne6 b7 Na5 Qgf7 Nf8 Q7f5+ Kd8 d7 Rb6 Q5f4 Rb5 Q4e3 Rd2 Qeb3 Rd3 Bda7 Nh7 Kg2 Nf5 Kh3 Nd4 Kg3 Ne6 Ra1 Nef8 Bc5 Rc3 Be3 Nd3 Bc5 Rh1 Raf1 Nc1 Rd1 Rh2 Bbd6 Qa1 b8Q Nd3 Rg2 Rh1 Bf2 Rf1 Bg1 Nb7 Rf2 Re1 Bf4 Be5 Qba8 Kc7 d8R Kb6 d6 Bd7 Q8a5+ Kc5 Ra8 Qc8 Ra6 Be8 d7 Bd4 Rdd2 Rb1 d8Q Nc1 Rd1 Rd3 Rh6 Bc6 Rdf1 Qd7 Bb8 Qc3 Qdc7 Qc2 Ng6 Ba1 Nh4 Qb2 Rc2#
3q4/q2PN3/N1b1RQ2/1nB2N2/K2Bnn2/1Q4br/n2R1NBp/qNkR3r b - - 0 1 illegal: No possible last move, all moves rejected
Q1B5/nbqP4/1rp1KNN1/B2R1Q2/6rR/1rR2B1r/k1q3N1/n3bbRR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 b4 a5 f4 c6 g4 e6 f6 h3 g5 h2 f7 h4 b6 a4 g6 h3 g7 a3 b5 a2 b7 Ra7 b6 Qe7 f5 Ra8 f6 Ra6 Qa4 Ra7 Nc3 Qd7 Ba6 Qc7 Nge2 Nd7 b8R Bb7 Nf4 Ne7 g8B Nc8 Ng2 Nc5 d3 Bh6 f8N Bd2 f7 Be1 Bd2 Nb3+ Ke4 Kc5 d6 e5 Kf5 e4 d7 e3 d8R e2 Ke6 Ra8 Ng6 Rh4 Nd5 Na7 Ba5 Rg4 Rbc8 Rb8 Nf6 Bg3 f8R e1R+ Qe4 Re3 Rag1 a1Q Rd4 Be1 Rcd8 Qa2 Ra4 Ba8 Bc8 Qc2 b7 Na1 d4+ Kb5 d5 Rb3 Qf5 Kc5 Ra2 Kc4 d6 Rb6 Rd7 Kb3 Ra3+ Kb2 Rc3 Ka2 Bf7 Rb3 Rh8 Rb6 Rf1 Rb3 Rhg1 h1B Rh4 h2 Be8 Bd2 Rd1 Be1 Rdh7 Rb6 Rd5 Rb3 N6f4 Rb6 Bh5 Rb3 Ng6 Rb6 N2f4 Bg2 Rh8 Bf1 Ng2 h1R Rh6 Ra4 Bf3 Rh3 R6h5 Rg3 Rhh1 Rh3 Rh4 Rg4 Bd7 Rg8 b8Q Bb7 Bc8 Rgb4 d7 Rb3 Qa8 Rg7 Ne7 Rg4 Ng6
1QQ1q1kq/1pN1n1R1/3n1rq1/PbB3R1/1r1Q1B2/r6N/1Nq2Q1Q/2b2B1K b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 f4 e5 Kf2 c5 Kg2 g5 a4 e4 d4 b3 a5 e3 f6 c4 d6 e2 d7 e1R h6 g4 h5 c3 f5 g3 d5 c2 h7 b2 d6 Na6 h6 Ra7 Nd2 b1Q Nc4 Bg7 Nb2 Re4 Rh5 Re2+ Kh1 Re6 Nh3 Re4 Rg5 Rb4 Bf4 c1Q Qd4 Qe8 d8Q Nc7 d7 Qbc2 Ra3 Kf8 f7 Qa1 Rc3 Nb5 Rc7 Ne7 Qf2 Rg8 h8Q Nd6 h7 Bc3 Qhd4 Ra6 h8Q Bd2 Qh2 Bc1 Qhe5 Ng6 Qdf6 Rab6 d8Q Bd7 Qc8 Bb5 Qdf2 Ra6 Qh8 Rc6 Qed4 Rc3 Re7 Ra3 Rd7 Ne7 Qhe5 Ne4 Qeb8 Rg6 Rc7 Rf6 Rd7 Ng6 Rc7 Kg7 f8B+ Kg8 Bc5 Nd6 Rd7 Kh8 Rf7 Ne7 Rfg7 g2+ Kg1 Rh6 f6 Rg6 f7 Rf6 Nd3 Qac3 f8N Q3b2 Ne6 Qa1 Nc7 Qab2 Qd2 Qa1 Kf2 g1Q+ Kf3 Qg4+ Kf2 Qh5 Kg2 Qg6 Q2f2 Qac3 Kh1 Qa1 Rf7 Qac3 Nb2 Kg8 Ng1 Qh3 Rh7 Qh6 Nh3 Qh4 Rf7 Qh8 Rg7+
q2Qnqr1/Pk2RRBQ/8/1bp1Qb1N/R4Q1n/bB2Q2r/qBb2K2/3N4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 h4 g5 d4 c5 a4 Kc7 h6 b5 a5 e5 d6+ Kb7 a6+ Kc6 h5 e4 h7 e3 f6 g4 h6 b3 f7 e2 f5 b2 d5+ Kb6 f6 b4 a7 b3 d7 g3 d6 g2 Qd5 Bg7 f8R Na6 f7 Ne7 Ra4 Nc7 Qe5 Ne8 Kf2 Bf6 Nh3 Kb7 Nf4 Rg8 h8B Nf5 h7 Nh4 Nc3 b1B Bg7 b2 h8Q Bf5 Nd1 b1B Qh7 Bbc2 Nh5 Qe7 d8Q Bcd7 Qe3 Bb5 d7 Bb2 Qe5 Qe6 Qe7 Ba3 Bb2 Qa2 Qg5 Rc8 Qge3 Rc6 Rh2 Rd6 Rh3 Rd3 Rg3 Rc3 Rg6 Rb3 Re6 Rd3 Re7 e1Q+ Kg1 Qa5 Kf2 Qd8 Be2 Rb3 Bc4 Rd3 Bb3 g1Q+ Ke2 Qh1 Kf2 Rh8 Rg8 Qc6 f8Q Qa8 Qff6 Qcc8 Rf8 Rg8 Rff7 Qcb8 Qfh6 Qd6 Qhf4 Rc3 Re6 Qf8 Ree7 Rd3 Qe2 Rg3 Q2e3 Rh3 d8Q+
qQ6/NrRQ2R1/1N4kr/bRBBrp2/2r4R/r3nbK1/N2P1n2/r5RQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 b4 c5 e4 g5 h4 f5 e5 Kf7 d6 f3 b6 a4 h6 a3 h5 c4 b5 a2 b7 g4 b6 c3 e6+ Kf6 d7 c2 e7 Nc6 b8Q Nd4 e8Q Ra5 h7 Bd6 h6 Nb3 b7 Kg5 Ba3 c1R Ne2 Re5 Rh4 Rc4 Bg2 Bc7 Qh1 Nc1 Kg3 f2 Bd5 f1R Nf4 Ba5 Bc5 Nf6 Nc3 Nd3 Re1 a1R Na2 Rf2 Rg1 Rfe2 Qe6 Nf2 Qe7 Qe8 d8N Qc6 Qd7 R2e3+ Bf3 Qa6 Nc6 Ra3 Nd5 Qa8 Nb6 Nd5 Na7 Ne3 Bg2 Kg6 Bd5 Rf8 h8R Rf6 h7 Rfe6 Qa4 Bd7 Re8 Bc6 h8R Rf6 Rc8 Rf7 Bg2 Bf3 Rc7 Rh7 Qd7 Rh6 Rh7 Rb1 Bf1 Rbb4 Bd3 Rb5 Be4 Rb1 Kf4 g3 Re7 g2 Kg3 Rb5 Bd5 Rbb4 Qh8 Rb1 b8R Rbb3 Nbc8 Rb7 Nb6 Rc2 Qhc8 Rc4 Rg7+ Kf6 Na4 Rb1 Re1 Rb6 Rbb7 Rb1 Qb8 g1R+ Qg2 Rf1 Qh1 Ra1 Reb1 Rfc1 R7b4 R1c3 R4b2 Rcb3 Rg1 Rb6 Rb5 Rb7 Re7 Kg5 Nb6 Kg6 Rg7+
3R1R1n/1K2n1NR/1R2r3/1br1b1Nq/BQ1b1B2/2n2Pp1/3Qb1RQ/Bn2k3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 a5 h4 g5 b4 d5 b6 g4 h6 g3 f6 a4 h5 d3 b5 a3 b7 d4 f7 a2 b6 d2 f3+ Ke3 h7 Kf2 h6 d3 Nc3 Bg7 f8R e5 Nd5 e4 Nc7 e3 Ne8 Nc6 b8R e2 b7 Qg5+ Kb6 e1N c5 Bd4 Ng7 Nce7 Kc7 Ra6 c6 Ng6 Nh3+ Ke3 Qc2 Qh5 Ng5 Kf2 Be2 d1N Bf4 d2 Bb5 Bh3 Ba4 Bd7 Rbd8 Ke2 b8R N8e7 Kb7 Nc3 c7 Re6 c8Q Bb5 Qc5 Be5 Qc1 d1B Qb4 Nc2 Rg1 Kf2 Qd2+ Bde2 Rac1 Rg8 h8B a1B h7 Na3 Rc2 Nab1 Rg2+ Kf1 Ra2 Nd1 Rc2 Bad4 Rc6 Ndc3 Rb6 Rf6 Rbc8 Rd6 Rc7 Re6 Ne8 Rg7 Rcd7 Rf7 Bg7 Rff6 h8Q Rf5 Qh7 Nh8 Rc7 Qg6 Qh2 Qh5 Bf6 Neg6 Rh7 Ne7 Qa2 Ke1 Ng7 Qh6 Qc2 Qh5 Qd2+ Kf1 Qh4 Bc7 Qa2 Ncd5 Nf7 Be3 Bb2 Bd4 Qh3 Ndc3 Ng5 Ke1 Qh2 Rc5 Ba1 Bce5 Qd2+
Q5r1/3kQ3/Rr6/1N1B1BqB/2nn1pNr/Q3nb2/Bn2PNRB/3r2bK b - - 0 1 illegal: No possible last move
5brR/1Q1QQQN1/2r1r2N/Q1NB4/B2P3k/Kn2nn1r/1pbB3R/2n2q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 a4 b5 d6 c5 h6 g5 a5 e5 a6 e4 a7 e3 d7 e2 h5 c4 h7 g4 h6 g3 Nf3 c3 Ng5 c2 Rh2 b3 Nc3 b4 Nce4+ Ke7 Ne6 g2 f6+ Kf7 f5 g1R Ng7 b2 Nc5 Qa5 d8Q Qb5 Qa5 b1N d4 b3 Bd2 Nc3 Qb1 c1N Qe4 b2 Qb7+ Ne7 Qd7 Rg8 h8Q Qb3 h7 Rg3 Bg2 Na4 Bc6 Nb6 Ba4 Na6 Qb7 Rb8 a8B Qb5 Qd7 Re3 Bd5+ Re6 Ra3 Nc4 Rah3 Ne3 Qb7 Bd7 Rh4 Ng6 R4h3 Bd6 Rh6 Rgc8 Qhd8 Ne5 R6h4 Bf8 h8N+ Kg8 Qe8 Rc6 Nf7 Bc8 Nh6+ Kh7 f7 Nf3+ Kf2 e1R f6 Kg6 Qed7 Kg5 R4h3 Bd6 f8Q Rh1 f7 Be7 Qfe8 Qc4 f8Q Qf1+ Kg3 Ra8 Qff7 Bf8 Qee7+ Rf6 Qdd6 Bf5 Qdd7 Bc2 Rh4 Nb4 R4h3 Nb3 Rh4 Na2 R4h3 Qd3 Kf2 Qf5 Ke2 Rd8 Qed6 Re6 Q6e7+ Qf6 Nhf5 Kg4 Rh8 Rdc8 Nh6+ Kg3 Rg2+ Kh4 Rf2 Rh3 Rh2 Bd1+ Kd3 Nac1+ Kc3 Bc2 Qed6 Qf5 Kb4 Qd3 Ka3 Qf1 Bb4 Be7 Bd2 Rg8 Q6c7 Bf8 Qcd8+ Be7 Q8e8 Bf8 Qee7+
4RrN1/K1B1rNk1/1r2n3/R1QBbP2/BQ2Bb1b/3bNr2/1qp4R/1n3B2 b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 Ke2 Kf7 Ke3 b5 Kd4 h5 Kc5 e5+ d6 b4 g4 b3 f4 e3 a4 e2 d4 e1B d5 b2 f5 c6 a6 h4 a5 h3 a7 h2 g6+ Kf6 a6 e4 g7 e3 g5+ Kf7 g6+ Kf6 Qb3 e2 Ra5 Rh7 Nc3 b1R Nf3 Bh4 Qb4 e1B Ng5 Bd2 Nd1 Bf4 Nf7 Ne7 g8N+ Kg7 d7 Rb2 d6 Nd5 Be3 Qf6 d8R Nc3 Kb6 c5 Re8 Nc6 d7 c4 d8Q Nd4+ Qd6 Ne6 Qc5 B8d6 Bd2 Rb1 Ne3 Bde5 Be1 Bd7 Bg3 Bb5 Kb7 Rd8 a8B Rb3 a7 Nb1 Kb6 c3 Bc6 c2 a8B Bd3 Ba4 Rb8+ Ka7 Rb6 Be4 Ra3 Rg1 h1R Rg2 Rh3 Bh2 Rf3 Re2 Bc7 Bg3 Qb2 Rh2 Bce5 Ne7 Kf6 g7 Ra2 g8B Kg7 Nd6 Rh8 Bf7 Rf8 Ng8 Nd4 Bfd5 Ne6 Nf7 Ra3 Qe7 Rc3 Qed6 Rc8 Qdc5 Rc7+ Bb7 Rd7 Bd5 Re7 Be4 Bc7 Bbd5 Bce5+ Ka8 Bd4 Bdc6 Bfg5 Bc7 Bf4 Bcd5 Bde5 Ka7
1BQ1BNr1/3QN2N/r2nrQ2/1P2nNBk/r2n4/p1Kb2qN/R1R2b2/4n3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 d4 h5 Kd2 a5 g4 e5 b6 h3 g5 h2 f6 Kg6 d6 e4 d7 a4 f7 h4 d5 e3+ Kc3 h3 b7 c4 d6 a3 Ra2 e2 f5+ Kh5 f6 Nh6 g6 Rg8 g7 Ra4 Bg5 Nf5 Nd2 Nc6 b8B Ne5 Ndf3 Qc7 d8Q e1N d7 Bc5 f8N Bf2 f7 Ba6 Nh7 Nd6 f8N Bb5 Qf6 Ra6 d8Q Ra4 Kd2 c3+ Kc1 c2 Kd2 c1R Qc8 Rc6 Nh4+ Be2 Nf5 Rca6 Qb3 Bd3 Qbe6 Qa7 b5 Qe3+ Kc3 Qg3 Bg2 R4a5 Ne2 Ra4 Rg1 h1R Qed7 h2 Bc6 Ne8 Rg2 Nd6 Rc2 Rf1 Ng1 h1N Nh3 Rg1 Ng6 Re8 g8N Re6 Re2 Qg4 Rb2 Ng3 N8e7 Qh4 Ra2 Ne2+ Kd2 Nd4 Kc3 Qg3 Ngf8 Be3 Rgb2 Bf2 Rc2 Qh4 Bc1 Rg8 Bg5 Qg3 Qdc7 Ng2 Bd7 Ne1 Be8+ Nef7 Neg6 Ne5 Q8d7 Qg4 Qcc8 Qg3 Nge7+
2Bb2K1/3n1n2/4RP2/1q1r1QR1/1N1r2pk/4Q1Nb/1BB3BR/1nnB1rQr b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 a4 e5 h4 e4 c4 e3 f4 b3 a5 b4 h6 g4 a6 e2 c6 e1N c7 b2 a7 b3 h5 d6 c5 Qd7 c6 Nd3 h7 Qd8 h6 Nd7 Nc3 b1N Ra5 b2 Na2 Ba6 c8B Qb6 c7 Qb8 Be2 Na3 Rh2 b1R Bb2+ N7e5 Nb4 Kf7 f6 Kg6 Ke6 d5 f7 d4 f5+ Kg5 f6 Bc5 f8R Qb7 Re8 Nd7 Kf7 Rb8 a8B Nc1 Re6 Qb5 Bg2 d3 Qc2 d2 Bd1 Be3 Ne2 Bb6 Ng3 Ra1 Bcb7 Nb1 c8B Bd8 Bbe4 Rb6 Qb3 Rd6 Bec2 Rd4 Qf3 Bb7 Qf1 Bd5 Qg1 Bc4 Kg7 Bf1 Kf7 Ne7 Kg7 Nf5+ Kf7 Nd6+ Kg7 Re8 h8Q Nf7 Qh7 Rh8 Qd3 Rd5 h7 Rd4 Be2 d1R Qde3+ Rf4 Bef3 Rd5 Bfd1 Ra4 Nd3 Rad4 Nb4 Rf8 h8Q Re8 Qh7 Rh8 Bge4 Bh3 Qf5+ Kh4 Bg2 Rh6 Kg8 Rf1 Qgf2 Rh1 Qg1 Rh5 Qff4 Rhf5 Qfe5 Rf3 Qf5 Rf1 Qd2 Qb8 Qff4 Rd6 Rg5 R6d5 Qde3 Qb5 Qf5
5b2/b2KBr1k/p1R3rn/nRbP4/N3N2Q/1N2BR2/3QNrq1/N3rb1B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 Kc5 e5+ d6 c6 b4 a6 f4 h3 g4 e4 d4 h2 b6 h4 f6+ Kh6 b7 h3 d5 e3 f7 e2 g5+ Kh7 g6+ Kg7 b5 e1B f5 Qh4 b6 Qe7 Ra3 Rh6 f6+ Kh8 g7+ Kh7 Bg2 Bf2+ Be3 Rh5 Qd2 Rh6 Ne2 Rg6 Nbc3 Bd7 Na4 Qd8 Rc1 Bh4 Bh1 Nh6 g8N Bg5 Rb3 Bh4 Rb5 Bf2 Rc4 Ra7 Rc1 Bg7 f8R Bc8 f7 Qg5 d7 Qg2 d8Q Bf5 Rbb1 Bd3 Rb5 Bc4 Qh4 Bd4+ Kb4 c5+ Ka5 Bd3 Rc2 c4 Nf6+ Kg7 Ne4 c3 Rc1 Kh7 Kb4 Bg7 Kc5 Nc6 b8N c2 b7 Na5 Nc6 Bg1 b8N Re7 Re8 Bf8 Nd7 Bc4 Rf1 c1B Nb4 Ba3 Rf3 Bf2 Rc8 Bd3 Nf4 Bf1 Rc6 Bg1 Kb6 Bf2 Nc2 Bc5+ Kc7 Ba7 Bb6 Be3 Na1 Bc5 Nec3 Re2 Ne4 Rf2 Ne2 Qg5 Bg2 h1R Kc8 Rg1 Bh1 Qg2 Kd8 h2 Kc7 Bg7 f8B Rf6 Bd6 Rf7 Be7 Bf8 Kd8 Qh3 Kc7 Rg6 Kc8 Qg2 Kc7 Ba3 Ndc5 Bb4 Ncb3 Bc5 Kc8 Qg3 Bg2 h1R Kd7 Rg1 Bh1 Qg2 Ned4 Bc4 Ne2 Re1 Ng1 Bf1 Ne2 Bd6 Bd4 Bdc5 Be3
3NnnK1/1BQ2Qp1/kB4P1/Nbb2Rn1/B5R1/1q1Qqq1Q/3nbrR1/3Q4 b - - 0 1 illegal: No proof kernel
k5N1/1q1nK3/N4Nrp/n1R2RN1/2n1b3/Q1QQ3P/nRr1N1B1/2rr2Br b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kb3 Kd7 Kb4 g5 Kc5 a5 e4 g4 b4 h6 d4 g3 b6 c6 d6 g2 d5 a4 b7 a3 b5 a2 e5 Rh7 b6 Re7 e6+ Ke8 d7+ Kf8 Kd6 c5 f5 c4 f6 c3 f7 c2 h3 Re8 e7+ Kg7 Nc3 Kf6 Qe1 Ra6 Nge2 g1R Bg2 f1R Be3 f2 Rc1 Nc6 b8R a1R b7 Qb6 d8N Bf5 Ne6 Be4 Ng5 Rc8 e8N+ Kf5 f8Q+ Nf6 Qd2 Na5+ Ke7 Ke5 d6 Rd1 d7 f1N d8Q Nd7 Nf6 Qc7 Ba7 Ne3 Ncd5 Nec4 Ng8 Rg6 Ndf6 Rge1 Rh2 Rh1 Bg1 Qb6 Ra8 Qb3 b8N Qb7 Na6 Rc5 Rb1 c1N Rc8 Na2 Rb2 Rac1 Qd3 Rc2 Qb6 Rc7 Qbb3 Rc6 Kf7 Rcc1 Qfa3 Rc5 Qdc3+ Kd6 Rf8 Kc6 Ke7 Rc2 Qd3 Rcc1 Qbb4 Rc2 Qbc3 Rcc1 Rc2 Kb6 Rb2+ Ka7 Rc8 Rc2 Rc6 Ka8 Rb5 Rf5 Rcc5 Rff1 Rf5 Rdc1 Rbc5 Rfd1 Ng3 Qb6 Bf1 Rcd2 Rhf2 Qb7 Bg2 Rf1 Re2 Rdd1 Rc2 Rf2 Rb2 Rfc2 Ne2
1N1qr1Q1/b3BbR1/2KQ2qn/Q2B4/k3qqQ1/2bp3N/1n1PB1R1/N1b1Q3 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 f5 e4 g5 exf5 Bb7 a4 Bg7 h4 gxh4 b6 Bc8 b7 Ra6 b5 Rd6 b6 Rd5 Nh3 Rb5 axb5 a4 Ng1 Bf8 Ke2 h5 Kf3 d5 g4 Kd7 g5 c5 f6 e5 g6 d4 Ke4 c4 Kd5 d3 f4 h3 f5 a3 f7 a2 f6 h4 g7 e4 Qf3 c3 Qh5 h2 Na3 e3 Nh3 c2 Rg1 h1Q+ Rg2 Qg1 Be2 Nh6 g8B Bc5 f8Q Nc6 b8Q Na5 f7 Nc4 b7 Ba7 b6 Nb2 Qb4 Qh2 f8Q Qf4 Rb1 a1B Bf7 Rg8 Qbe5 Rh8 Qfg7 Re8 b8Q Ba6 Kc5 Bc4 Qg8 Ba2 Qa5 Bd5 Bf1 e2 Qhg4+ Be6 Kb5 e1Q b7 Qee4 Be2 Qg6 Qe3 Qdg5+ Qbe5 Qd8 Qf6 Kd6 b8N Kd5 Qf2 Kd6 Qe1 Kd5 Ng5 h3 Qe7 h2 Nh3 Kd4 Kc6 h1Q Qec7 Nc4 Qe7 Bc3 Rb7 Nb2 Qef8 Nc4 Bb2 c1B Ba1 Nb2 Nc2+ Kc4 Qd6 Bc5 Rc7 Kb3 Rd7 Bc4 Bd5 Bf2 Rg7 Ba7 Bdf3 Bf7 Bd5+ Nc4 Rh2 Qhe4 Rg2 Bb4 Bf6 Bc3 Qac7 Ka4 Na1 Nb2 Be7 Bb4 Qb6 Bc3 Qa5+
1rQb1rRk/qp4Nb/B2r1nB1/1N4q1/q1Q2r2/BPK2Rq1/4B1N1/2Q1B3 b - - 0 1 illegal: No possible last move, all moves rejected
n1k1Br2/1nN2N2/1b1N1R2/1KRb1B1p/NBn2QN1/q1Pr1Q2/1p4R1/1b2r3 b - - 0 1 illegal: No possible last move
K2nb3/b6r/1BR2rB1/1pr1B3/1B2NR1P/nkbB1Q1Q/2RnQp2/1N1q4 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kf3 c5 Ke4 g5 a4 b5 h4 c4 d4 g4 e6 Kd6 a5 f6 e7 c3 e8Q b3 h6 b2 h7 c2 a6 g3 a7 g2 Ra2 Na6 Qe6+ Kc7 d6+ Kb6 Kd5 f5 e4 f4 d7+ Bd6 e5 f3 Qh3 f2 e6 Rb8 a8Q Ba3 e7 Ka5 Kc6 Ka4 e8B Kb4 d5 Nf6 d6 Ne4 Nf3 g1R Bg6 Nac5 Bd2+ Kb3 Bb4 Nd2 Bfd3 Nb7 Qe2 c1B Ng5 Rg3 Rf1 Rf3 Ne4 Rf6 Rg1 Rf4 Rg4 Rf6 Qa7 Ra8 Qae3 Ra4 Rf4 Ra8 Bc5 Bb4 Qe3f3 Bc3 Bb4 Ra7 Ra6 Re8 h8B Re5 Na3 b1N Bg7 Qa5 d8B Qa4 Bb6 Bd7+ Kc7 B1b2 Kb8 Be8 d7 Rc5 d8R Bd4 Rd6 Bbc3 Rc6 Nd8 Bh8 Rh7 Ka8 Ka2 Ra7 Qd1 Rac7 Kb3 Rc8 Nc4 Bg7 Nbd2 Nb1 Na3 R8c7 Be5 Rc8 Bb8 R8c7 Rf8 Be5 Ba7 Rd7 Rf6 Rd4 Bb2 Rc4 Ba1 Rc1 Bc3 Rc2
3b1B2/1b1B4/NP5p/5BQn/2RrR2r/R1K1n1np/1BN1k1Q1/qNr2bB1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 b4 Ke7 d4 c5 Kd2 f5 e4 a5 g4 a4 e6 Kf6 d6 Kg5 e7 Kf4 e8R h3 b6 a3 d7 c4 d5 h6 g5 a2 e5 Ra7 e6 Bg7 e7 Nf6 b7 Rg8 g6 Ra4 b5 Na6 b8N Bh8 g7 Ra3 d6 Ke4 Qg4+ f4 Nf3 Ra4 Bb2 Bb7 Nd4 Nh5 Qg2+ f3 Nc2 Nc5 Na6 Qa8 d8B Qa7 Qg5 f2 d7 Kf3 Bd3 f1B Bb6 Kf2 Rc8 Rd8 g8Q Bf6 e8B Be7 Bf5 c3+ Kc1 Rd4 Rg1 Rc4 Rg4 Ke2 Qd5 Ne4 Bg1 Qd4 b6 Neg3 Rc6 Qf6 Qh1 Rd4 Rc4 Rc8 d8B Rc6 Ra4 Rcc4 Bed7 Qg7 Bc7 Bd8 Bd6 Qe5 Bf8 Qg7 Ne3 c2 Re4 Qe5 Bba3 Qf6 Kb2 c1R Kb3 Qh8 Bb2 Qf6 Re5 Rh4 Nc2+ Rce4 Rc5 Rd4 Kc3 Qh8 Ra3 Qf6 Rc4 Qh8 Nd2 Qg7 Rb1 a1N Qc6 Nb3 Rba1 Na5 Nb1 Qe5 Raa4 Qg7 R1a3 Qh8 Rc5 Nc4 Re5+ Ne3 Re4 Qg8 Rb4 Qa2 Rc4 Qa1 Re5 Rdd1 Qh1 Rd6 Ree4 Rd4 Qg2+
3B1B2/2pr1P2/Br1N3n/QNq1b1Q1/1n3QB1/3b1p1b/2r2R1R/1nk1RBK1 b - - 0 1 illegal: No proof kernel
3n1kNB/1Br2Qb1/1q1Rb1K1/QN3rQ1/3Q4/2bQ1pPB/1Rp1q1R1/4n1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 f5 b4 a5 e4 c5 d4 c4 b6 a4 d6 c3 b7 h4 e5 h3 g3 a3 e6 h2 g6 a2 d7+ Ke7 b5 c2 g7 Nf6 g8Q Ra5 b6 Rh5 d5 Rh7 Qg5 Rc5 Nc3 Bg7 d6+ Kf8 e7+ Kf7 e8B+ Kg8 Nd5 Rc6 Bb2 Ng4 Ne2 Rh6 Nd4 Rc3+ Qd3 Nf6 Rg1 h1R Nb5 R6h2 Bh3 Re2 Rg2 Ng4 Rd1 a1B Ne7+ Kf8 Ng8 Qf6 d8Q Nc6 b8Q Rg1 b7 Be6 d7 Ne3 Qa5 Nd8 Qc8 Rc7 b8R Rd2 Be5 Bc3 Rb6 Qh6 Rb1 Qg6 Rd6 Rdd1 Rb2 Rdf1+ Rf2 Ng2 Bf6 Bh6 Bh8 Bhg7 Qb7 Qf6 Qbd5 Qd4 Q5c4 Qb6 Qcd4 Nb7 d8Q Ne1+ Ke2 f3+ Ke3 f4+ Ke4 Bg4 Rg2 f2 Qc8 Be6 Bc6+ Nd8 Qd7 f3 Q4c4 Rh1 Qcc5 Rfg1 Qcd4 f1Q Bb7 Qe2+ Kf4 Bc4 Kf5 Be6+ Kg6 Rh2 Bf5 Rh4 Bh3 Rf4 Kh7 Rf7 Kg6 Rf5 Qf7+
2nNnq2/2q2b2/1Q2r3/1N1qbQ2/RBNP2R1/NRBrp1Np/1r3k1K/5B2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 Kg2 a5 d4 e5 g5 e4 b6 h3+ Kh2 a4 f6 c4 f5 e3 b7 h4 f7 a3 f6 c3 g6 c2 g7 a2 b5 Ra7 b6 Nd7 b8Q+ Qc7 b7 Rh5 Na3 Ra6 Qf3 Ne7 g8R Bg7 Bd2 c1Q f8N Qc5 f7 Nf6 Ne2 Be6 Qf5 Ne8 Ng6 Be5+ Ng3 Nc8 Bc3 Rg5 f8N Bf7 Ne6 Rb6 Rb1 a1R Rb3 Rd1 Qa7 Rd3 b8B Rc6 Qb6 Rg4 Rg7 Rf4 Rg1 Rf2+ Rg2 Rb2 Ba7 Bf6 Ne5 Qb4 Rg4 Qc5 Nf3 Be5 Nd2 Qb4 Kh1 h2 Ndc4+ Kd7 Rd2 Qf8 Kg2 Ke7 d6+ Kd7 Kh3 h1Q+ Rh2 Qd5 Re2 Rb1 Kh2 h3 Ra2 Rb2+ Qf2 Qb8 Nc7 Qb7 Ncb5 Ke6 d7 Qc7 Qc2 Kf6 d8N Re6 Re4 Kg5 Bb8 Qa7 Bd6 Qc7 Rf4 Qa7 Bdb4 Qc7 Rf6 Kg4 Rg6+ Kf3 Rg4 Qa7 Nb1 Qae7 Ra4 Qec5 N1a3 Qc7 Nd2+ Kf2 Ndc4+ Rd2 Qh7 Rd3 Qf5+
4n3/RkbK1R2/1N4B1/1Q1RQ2P/bNR2r1n/1n1b2Bp/2Rr1qp1/q4B1N b - - 0 1 illegal: No proof kernel
4bkn1/b2B1b2/1Q1q4/r2P1q1p/3Q4/BNp1R1Rq/BNR2Rr1/1nN2KR1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 g4 a5 d4 c5 g5 c4 g6 h3 d6 a4 b6 h2 b7 e4 g7 a3 f6 c3 b5 a2 f5 e3 b6 e2 d7+ Kf7 Na3 Bb4 Bh3 Bd6 Nc4 Ra5 Nb2 Nh6 g8B+ Kf8 f7 Na6 b8N Ng4 b7 Nc5 Nc6 Ra7 b8Q Qb6 Na5 Ra6 Nb3 Nh6 Qb7 Qb5 Qb6 Bb8 Kf2 Ra5 d8R+ Kg7 f8R e1Q+ Kg2 Qe6 Rfe8 Bd7 Ne2 Ba7 Kf1 Qd6 Re3 Be8 f6+ Kf8 f7 Ne4 Rg1 h1B Bd7 Qd3 Rb1 a1Q Rgg3 Qa4 Ra1 Qab5 Ra2 Rh7 Qd2 Rg7 Ra1 Ke7 f8R Qbc5 Bd5 Ng8 Rf2 Qcb5 Bc4 Qf5 d5 Kf8 Ra2 Bf3 Rg1 Rg2 Rb8 Bg4 Rb7 Qb1 Qdd4 Qf3 Rb8 Be6 Rc8 Bf7 Rc6 Qdg3 Rg6 Qd6 Rg3 Qf5 Na4 Qc2 Ba3 Qd3 Rc2 Qh3 Nb2 Nd2+ Ke1 Qg6 Nec1 Nb1 Kf1 Qf6 Na1 Qe5 Ba2 Qef5 Nab3
r3k1Rq/2brqb2/r6B/1PBN1R2/1n1N3B/QRp1bK1p/4Q1B1/2nB1N2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 g4 c5 b4 a5 d4 h5 f4 c4 d6 a4 d5 a3 b6 e4 f6 c3 d7+ Kf7 g5 e3 d6 a2 f5 h3 b5 h4 b7 h2 Nd2 h3 Bg2 Bh6 g6+ Kf8 f7 Na6 b8N Qb6 d8R+ Kg7 f8B+ Kf6 g7 Kf7 f6 Nb4 d7 Rh7 Na6 Qb7 Rb1 a1Q Bc5 Ne7 Rg8 Nf5 d8B Qe7 Nf1 Be6 Rb3 Ng3+ Kf3 e2 Nc7 e1B Ne2 Be3 Nd4 Ne2 Nd5 Bg3 Bd2 Nc1 Qe2 Bc7 Rg1 Kg6 f7 h1R f8Q Rh2 Rh1 Bf7 Rg1 Qa7 Rh1 Qe5 Bh4 Qb8 Rg1 Qd8 Rh1 Qde7 Rg1 Ra6 Qa8 Rh1 Rf8 Rh2 g8B Qh8 Qa7 Re6 Qa3 Ra6 Rh1 Ra8 Rg1 Rh6 Bh7+ Kg7 Bc2 Rha6 Bd1 Rh1 Rb8 Rh2 Rb6 Kf8 Rf6 Ke8 Rf5 Qg8 Bh1 Qh8 Rg4 Rg2 Rg6 Rg5 Bg2 Rh5 Rg3 Rhh6 Rg7 Rhd6 Rg6 Rd7 Rg4 Bg1 Bh6 Be3 Rg8+
2qRnRrQ/qnQ1QBB1/5N2/1p4r1/1RQp3K/B2PrQN1/1bbk2q1/8 b - - 0 1 legal: proof: e4 b5 b4 h5 g4 f5 exf5 c6 gxh5 Na6 a4 Rh6 axb5 Nb8 b6 Rh8 b5 cxb5 h4 Kf7 c4 Kf6 f4 a5 Kf2 d5 Kg3 e5 b7 g5 h6 g4 c5 e4 c6 e3 h5 a4 c7 e2 h7 e1R h6 a3 Qf3 a2 Kh4 g3 Ne2 d4 Nbc3 g2 Nd5+ Kf7+ f6 Kg6 f5+ Kf7 Ng3 g1Q Bc4 Nc6 b8Q Qg2 Rb1 a1Q Ba3 Na5 Rb4 Re3 d3 Nb7 Qa7 Be6 c8Q Rb8 Qc6 Qc8 Bb3 Qaa2 Qc4 Ra8 Qa5 Ra6 Rh3 Rc6 Rh2 Rc5 Qc7+ Be7 Bb2 Qa7 Ba3 Kf8 Rh1 Bd6 f7 Nf6 Rc1 Ne8 Nf6 Rg8 h8B Rd5 h7 Bc5 Nd7+ Ke7 f8R Bf7 f6+ Ke6 Bg7 Bd6 Nb6 Ke5 h8Q Rc5 Nd5 Bh5 Qf2 Bd1 Qf3 Bc2 f7+ Ke6 Nf6+ Ke5 Qfh5+ Kf4 Qe5+ Kf3 Qee7 Rg5 Ba2 Re6 Rf1+ Ke3 Rf5 Kd2 Rd5 Bf4 Rd8 Re3 Nfh5 Ned6 Q4c6 Kd1 Rfe8 Re2 f8Q Bc1 Qff3 Kd2 Rf8 Bb2 Nf6 Re3 Bf7 Ne8 Qc4
1k3qRB/3RQ3/BQr5/KpPR2bN/2QrN2N/5r2/p3Q1q1/n2Qn1bb b - - 0 1 illegal: No proof kernel
1n2BNrQ/1N3RbR/1R2Qpn1/5B2/KBn3b1/1pBq2r1/1B3qP1/3Qqk2 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 e4 Ke7 a4 h5 d4 c5 Kd2 b5 Kc2 f6 Kb3 h4 g6 h3 a5 h2 d6+ Ke6 a6 Ra7 d5+ Kd7 g7 Nc6 e6+ Ke8 d7+ Ke7 e5 Rb7 a7 Nh6 g8Q Qb6 a8Q Qd8 Bd3 Nb8 Nf3 Nf5 Ng5 Nh4 Bf5 Ng6 Nh7 Bg7 Bb2 Ra7 Na3 c4+ Kc2 c3 Kb3 c2 Nf8 c1Q Rb1 Qb6 Nc4 Qf2 Nd6 Qcd2 Nb7 Ra4 Qa6 Ra2 Qh7 Rg8 Qh8 Ra5 Qc6 Ra6 Qc4 Rc6 Qce2 Rc4 Qee1 Rg4 Qe3 Rg3 d8B+ Ke8 e7 Kf7 e8R Qd3+ Bc3 Be6 Bc7 Bd7 d6 Bc8 Rf1 h1Q d7 Qh4 d8B Qh1 Bh3 Bg4 Be7 Qhg1 Bc5 Qe1 Rc8 Qgf2 Bd4 Ke7 Ba5 Kf7 e6+ Ke7 Nd8 Kd6 e7 Kd5 e8B Qed2 Rh1 Qde1 Qg5+ Ke4 Qd5+ Kf4 Be5+ Ke3 Rh2 Qde2 Nb7 Qd3 Qc1+ Ke2 Rc7 Kf1 Rf7 Qde3 Qcd2 Qd4 Qe6 Qd3 Ka2 b3+ Ka3 b2 Qd1 b4+ Ka4 Be2 Bf5 Bg4 Rh7 b3 Ra1 b1N Bab4 Nd2 Bb2 Nf4 Bec3 Nc4 Rc1 Ng6 Rc2 Qe4 Rd2 Qb1 Rd6 Qd3 Rb6
1BQ5/1BrQ3K/1knQpN2/2pRQr2/1R1N1nrQ/b5R1/1q4Pq/1bq2B2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 h5 Kf4 c5 Kf5 Kc7+ Kg6 a5 d4 h4 b4 a4 f4 a3 f5 a2 d6+ Kb6 d7 h3 d5 h2 f6 e3 f7 e2 d6 e1R Nd2 Re5 Ngf3 Nh6 Nd4 Na6 Ne4 Nb8 Nf6 Ra4 Rb1 a1Q Bf4 Ka7 b6+ Kb7 b5 Qa3 Rb4 Qc7 d8R Qg3 d7 Rg8+ Kh7 Nc6 g6 Rf5 g7 Qc3 Qe1 Qd6 Qh4 Ng4 Bg3 Ne3 Be5 Kb8 b7 Kc7 Bg3 Kb6 b8Q+ Bb7 Qc8 Nd5 Bf4 Qb2 Be5 Ka5 b6 Ba8 b7 e6 b8Q Be7 f8Q Nf4 Qe8 Rf8 g8B Rf7+ Kh6 Bb7 Bh7 Ba6 Bg6 Bd3 Bh5 Bb1 Bf3 Rg7 Qh8 Rg4 Kh7 Bf8 Qbb7 Bg7 Rg8 Ra1 d8Q+ Qc7 Rg1 h1Q Qd6 Qh2 Qcd7 Qb6 Qdc8 Qc1 Qbd7 Qb5 Rh1 Kb6 Rd8 Ra7 Bd5 Qg3 Rh3 Qh2 Rg3 Bh6 Qdf8 Rb7 Bb8 Rc7 Qd6 Bg7 Ne8 Bh6 Qhe5 Bg5 Rc4 Qbb2 Nf6 Nh3 Ra4 Bd2 Bf3 Bb4 Bd5 Ba3 Rb4+ Ka5 Bf3 Nf4 Be4 Ne7 Ba8 Nc6 Bb7 Ne2 Rg8 Nf4 Qe4 Re5 Rg5 Rd5 Nb5 Kb6 Rf5 Rd4 Qe2 Re4 Rd5 Re5+ Qe4 Rf5 Qee5 Qe2 Nd4+ Qb5 Rc4 Qbb2 Rb4+
Q2R4/2N4Q/3pKR1n/q2Bb1r1/1rR1q1Q1/Bq2rp1N/P5QN/k2b2Qn b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Ke3 Ke6 Kd4 g5 h4 f5 c4 b5 e4 b3 c6 g4 c5 b4 h6 b2 h5 d6 h7 g3 h6 b3 c7 f4 c6 g2 Rh4 Bg7 Nd2 b1Q Bc4+ Ke7 Kd5 b2 e6 Kf6 e5+ Kf5 e7 Qe8 e6 Ra4 Nh3 g1R Nf3 Na6 Nh2 Qd8 e8N Be5 e7 Rg5 Qg1 Rb4 Qg2 Bb7 c8R Nc5 Nc7 Nd3 e8Q Nf2 Qh5 Ba6 Qd1 Nh1 Qdg1 Kf6 Bb3 Be2 Rg4 Bd1 Rb8 Qd7 Rd8 Qdf5 Rh4 Qbc2 Rg4 b1Q Ba3 Qbb2 Rc1 f3 Rf4 Qcb1 Rcc4 Qe2 Nb5 Qe3 c7 Qa7 c8Q Qa5 Rc5 Qb2 Nc7 Qc3 Rc4 Qfc2 Qcg4 Qe1 Kc6 Qee4+ Kd7 Qcd3 Rc3 Qb1 Bd5 Qb3 Rc1 Bd4 Rb5 Ke5 Rbb8 Bc3 Rf8 Bb2 Rbd8 Bc3 Rf6 Bb2 Q1f1 Kd4 Qfg1+ Kd3 Rc4 Be5 Rd4+ Kc3 Ke6 Qe2 Rdf4 Kc2 Re4 Kb1 Rc4 Qe4 Ra8 Ne7 Rd8 Re8 h8Q Ka1 h7 Nf5+ Kd7 Rf8 Ke6 Nh6 Qg8 Rf7 h8Q Rd7 Nb5 Rb7 Qgh7 Rb6 Nc7 Rc6 Rd4 Rc3 Rc4 Re3 Qe8 Rb6 Qc6 Rb4 Qa8
1BnN2qB/8/3p2b1/2rB2k1/RrQ1pBB1/2bP3b/Nq2RK2/QrR2Qn1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 c4 Kf7 g4 Kf6 f4 e5 g5+ Kg7 b6 a5 f6+ Kg6 f5+ Kf7 g6+ Ke8 c6 h5 d3 d6 f7+ Ke7 f6+ Ke6 c5 Kf5 b7 h3 g7 h4 c7 a4 c6 h2 Ne2 a3 Nbc3 h3 Bg2 a2 Nf4 Ra5 Ne6 Nd7 b8B Ne7 g8Q Bg7 f8B Rh4 f7 Rb4 Rf1+ Kg6 Rf2 h1B Re2 h2 Bg5 Qe8 Nd8 Rd5 Bf3 e4 Bg4 Ne5 Be6 Bd7 c8B Bf3 c7 Bh5 Bb7 Ra5 c8R Nf3+ Kf1 h1R+ Kg2 Rab5 Rc4 Rb3 Ra4 Nc8 Rb1 a1Q Na2 Ra5 Bfe7 Rb2 f8Q Rc5 Bef6 Rb4 Bh3 Qd4 Qc4 Qb2 Bd5 Rf1 Bc1 Ng1 Bd4 Re1 Qf1 Qg8 Kf2 Be5 Bf4 Bf5 Bg2 Bh3 Bf3 Kf6 Bg4 Bg6 Bh2 Kg5 Qdc1+ Bf4 Bh8 Bd2 Qd1 Bc3 Qc1+ Qd2 Qb2 Rd1 Qa1 Qb2 Bg3 Rd2 Re1 Rd1 Bge5 Rb1 Rc1 Rb3 Bg3 Rb4 Bf4+
1Q1r2n1/2n1B2B/2Rpk1KN/2NbP2Q/1Bn1r2b/2BQRp2/1qq2q2/3B3N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 f5 Kf4 a5 Kg5 g6 c4 d3 b4 a4 e4 a3 h4 d2 c5 f4 c6 f3 b6 a2 e6 Nf6 b5 Qe8 b7 Rg8 h6 Ra6 h7 Ra7 h8B Ng4 b6 Ne5 c7 Nbc6 b8B Ng4 b7 Bg7 h5 Qf7 h6 Ra8 h7 Qe8 Rh6 Ra3 Be2 Nge5 Nc3 Qf7 Nh3 Ra4 Nf2 Nc4 Nh1 Rd8 Ba3+ Rb4 Qf1 d1N Na4 Nc3 Nc5 Nd5 Re1 a1Q Bd1 Qb2 Qd3 Ra4 Re3 Bf6+ Kg4 g5 Kf5 g4 Bb4 Qf8 Kg6 Bh4 Bhc3 g3 h8N g2 e5 Qf4 Ba7 Qh2 b8Q Bb7 c8B Nc7 Nf7 Ba8 Bb6 Bb7 B6a5 Ba8 Ba3 Qc2 B5b4 g1Q+ Ng3 Qgf2 Nh1 Qb2 Ba6 Qfc2 Bc8 Qhf2 Bb7 N6a5 Be4 Bd5 Bf5 Nc6 Be4 Kf8 e7+ Kg8 Kh5 Kg7 e8Q Ne7 Rc6 Ng8 Bh7 d6 Nh6 Qbb3 Bc1 Qbb2 Qeg6+ Kf8 Qgf5+ Ke8 Kg6 Ke7 Qh5 Nb6 Ba5 Re4 Bab4 Nc4 Re2 Ke8 Bg5 Kf8 Be7+ Ke8 Na6 Kd7 Re3 Ke6 Nc5+
n1b1K3/2knR1B1/1QprRN2/N1q3qB/P1Q5/b2q1n2/1p2r1R1/3QRN1R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 b5 Ke4 g5 Ke5 g4 d4 g3 f4 c6 a4 e6 h4 b3 d6 b4 d5 b2 h6 g2 f6 b3 h5 Bb7 f5 Qe7 h7 Kd8 d7 Qf7 h6 Ra6 Nc3 b1N Nge2 g1Q Ne4 b2 N2g3 Qe3 Be2 Bc8 Bh5 Qf3 Nf1 Kc7 d8Q+ Kb7 d6 Qh3 d7 Nd2 Qb6+ Ka8 d8N Qa3 Nb7 Ra7 Na5 Qg6 f7 Na6 f6 Nc7 Rg1 Qg7 Rg2 Qd3 Rb1 Bc5 f8Q Ba3 Qfc5 Qe7 f7 Nf6 Qcc2 Rd8 h8R Rd6 f8R Rb7 h7 Kb8 Rfg8 Na8 Re8 Qf8 Re7 Nf3+ Kf4 Qg7 Qc4 Nd7 Rhe8 e5+ Kf5 Qg3 h8R Qf2 Qbc5 Kc7 Bh6 Qfe3 Q5b5 Qc5 Bg7 Rb8 Qa6 Rb3 Re6 Rc3 Kg6 Rc2 Kf7 Re2 Nf6 e4 Qab5 e3 R8e7 Ba6 Qdc1 Rf2 Bg6 e2 Ke8 e1Q Rh1 Bc8 Bh5 Qed2 Q1c2 Q2e3 Re1 Re2 Qd1 Qeg5 Qb6+
n2B1Q2/6b1/P1B1Qn2/2r2B2/1N1NbBp1/K2krQp1/R1r1b2R/1qBq2R1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 d4 Kd7 Kd2 Kd6 Kc2 e5 Kb2 g5 h4 c5 f4 b5 a4 g3 f6 e4 f5 c4 h5 g4 h6 e3 h7 c3+ Ka3 c2 f7 e2 f6 e1Q a6 Bb7 a7 Bc8 a5 Bf5 a6 Qb6 Qe2 Qd8 Ra2 Qe8 Nc3 Qe4 Nf3 Bh6 Rg1 Bg7 Qe3 Bd7 Bd3 Qd1 Qe1 Qg6 Bf5 Be6 Qe2 Nd7 Qc4 Rc8 a8B Re8 Bc6 Nb6 f8Q+ Re7 f7 Na8 Qb3 Nf6 Qe8 Rg8 f8Q Bd7 h8R b4+ Ka4 Be6 Rh2 Rh8 Qef7 Rh5 Qc4 b3 Ka3 b2 Qe2 Kc7 d6+ Kb6 d5 Kc5 d7 b1B d6 Bc4 d8B Re3 Bc7 Bb5 Qg2 Be2 Nd4 Qh7 Q7e8 Kc4 d7 Rg5 d8B Rh5 Bfe4 Rc5 Qf3 Qg6 Bf4 Qh7 Bd2 c1R Bf5 Be4 Qe6+ Kd3 Nd5 R1c2 Bc1 Qh3 Qef7 Qhf1 Qe6 Qfe1 Bb2 Qb1 Bc1 Qd1 Nb4+
4Q3/bn1bqb2/PnB1q1p1/p2r1B2/N1BB2N1/6Q1/1Q1N2RB/k1KR1rn1 b - - 0 1 illegal: No possible last move, all moves rejected
3B3n/RnR3pQ/1BNBr1qB/RKb1Q3/Bn2bP2/N1N5/5qrp/4b2k b - - 0 1 illegal: No proof kernel
2QB2QK/R1bb1Qp1/n3n1QQ/2Bq3P/3r2b1/1Nk2qRp/4BNR1/3rq3 b - - 0 1 illegal: No proof kernel
r1nq1N2/kn2B1pR/2NQqRK1/4p1PQ/BB3NR1/8/2nR3r/br1bR3 b - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 f5 exf5 d4 g5 d3 Qg4 hxg4 cxd3 Na6 d4 Nb8 d5 Rh3 Kd1 Rh7 Ke1 Rh8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 f4 Kb6 h4 e5 b4 a5 d4 c4 h5 a4 h6 c3 h7 c2 d6 g3 f6 g2 d7 a3 Kf5 a2 f7 Na6 d5 Kb7 b6 Bc5 f8N Nc7 d6 Nh6+ Kg6 Qe7 d8R Bd7 f5 Qe6+ f6 Bf2 b5 Bh4 Na3 Nd5 Ne2 g1R Bd2 c1N Nc2 Bc6 d7 Ra3 Nb4 Ne3 Nf4 Qh3 f7 Bg2 Nc6 Nd3 Bb4 Ra8 Re1 a1Q Be2 Qa7 Bd1 Bf3 Ba4 Qb8 Rh2 Rh1 Rg2 Nc5 Rg4 Rg8 h8Q Bf2 Qh7 Nhf5 Qh5 Qd6+ N8e6 Qc7 f8R Rh2 Rf6 Nc2 Nf8 Rb8 Nd4 Ka8 b7+ Ka7 b6+ Ka6 Rc1 Nd6 Nc6 Nc8 Re1 Ra8 b8Q Bd1 b7 Bd4 Rg2 Qe6 Rg4 Qb6 Qd6 Ba1 b8R Qc7 Rb5 Nb7 Rd5 Rh8 Rd2 Rh1 Re8 Rf1 d8B Qa5 Be7 Qd8 Nd7 Rh7 Rh8 Rh1 Ncb8+ Ka7 Nf8 Rf1 Qh1 Rh2 Rh7 Rg1 Qf3 Rg3 Qh1 Rb3 Qf3 Rb1 Nc6+ Ka6 Qh3 Kb6 Qh5 Ka6 Na5+ Ka7 Nc6+
2n3K1/3R2p1/R1nNBPrk/4b3/1RN1Q1Q1/1N1r3p/qrqq1RB1/1b4BR b - - 0 1 illegal: No proof kernel
1R1RK1bQ/1RN1N1p1/P1Q4n/1pbq1B2/3Q2QB/1k4rr/1q1nBr1Q/2b5 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 b5 Kf4 c5 Kf5 f6 Kg6 c4 Kf7 c3 a4 c2 h4 f5 e4 b3 d4 f4 d6 Kc6 d5+ Kc5 a5 Kb4 d7 f3 h6 f2 e6 b2 h7 Na6 h5 Qf6+ Ke8 Nh6 d8Q Qe5 d6 Bb7 e7 Rg8 h8Q Qg3 e5 Bc8 e6 Ra7 d7 Rc7 Bg5 c1B Be2 f1R Bh4 Rc2 Nf3 Ng4 h6 Bf4 h7 Bh6 Nc3 b1Q Nd5+ Kb3 Nd4+ Kb2 Nc7 Rf6 Nf5 Nc5 a6 Qa2 Rc1 Qc3 Qd4 Bb7 Qc8 Qd5 d8R Ne4 Qd7 Bg5 Rhd1 Rg6 Rb8 Nd2 Qc6 Qc4 Qg2 Nh6 Qgg4 Kb3 Qdf4 Rf6 Bg3 Ka3 Na8 Ra2 Kd7 Ra1 e8B Nf3 e7 Q3b3 Bg6 Qb2 e8Q Bd5 Qd2 Bd6 Ne7 Rgf8 Bgd3 Nf5 Qg8 Rh6 Be1 Qe4 Rc7 Bc5 Rcb7 Kb3 Nc7 Rc1 Qe6 Rc3 Qe5 Bg8 Qh2 Rh3 h8Q Nh6 Bh4 Rf7 Bb1 Qc4 Qdd6 Bc1 Be4 Rf4 Bf5 Qe4 Rd3 Nd2 Qeg6 Qe6+ Ke8 Rf2 Qd7 Qe4 Qgc6 Qh1 Rd5 Rcg3 Qdd6 Qe4 Qf6 Qc4 Rdd8 Qd5 Qfd4
3Bb3/1qR1p1kB/B1qB3Q/3n1Qb1/1qN1n3/1pn5/NKN3Pr/3QrRB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 f4 b5 d4 c5 Kd2 h5 Kc2 b3+ Kb2 h4 f6 b4 a5 c4 f5 h3 d6 h2 d5 Qd7 a6 Rh7 a7 Qe8 d7 Rh5 d8B Qc6 g6+ Ke8 g7 Kf7 d6 Rh4 d7 Qb7 Be3 Re4 Bc7 Nc6 d8B Bd7 Bd6 Be8 Nf3 Rb8 Beb6 Re1 a8N Nd4 Ra6 Nb5 Bg1 Nc3 Rc6 Ne4 Nb6 c3+ Ka1 c2 Ba6 c1Q Nd4 Qh6 Nc3 b2+ Ka2 b1N Nc2 b3+ Kb2 Qh4 Na2 Nbc3 Nc4 Rc8 Rc7 Qf4 Be3 Qg4 Rg1 h1Q Rf1 Qg1 Bb6 Qc5 Ba7 Qcc6 Be3 Nh6 Bg1 Kg8 f7+ Kh7 g8B+ Kg7 Bh7 Ng8 Bf2 Ngf6 Bg1 Nfd5 f6+ Kh8 Bg8 Bh6 f8Q Bg5 Qf7 Rb8 Bh7 Qf4 Qfh5 Qd2 f7 Kg7 Qh4 Qd4 Qf4 Qdb6 Qh2 Qb4 Qh6+ Kh8 Qh2 Nef6 Bg8+ Kg7 Qh1 Nfe4 f8Q+ Kg6 Qf5+ Kg7 Rc8 Bf7 Bdb6 Qca4 Rc5 Rd8 Rc8 Qac6 Qhh3 Rf8 Bd8 Be8 Rc7 Rf6 Bh7 Rh6 Qe6 Rh5 Qhf5 Rh2 Qh6+
RRNKRQ1n/Rr2pN1Q/3R1n2/1Nk2q2/rb2q1p1/6B1/Br4Pb/Q1b5 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Bf5 h5 Bg6 hxg6 Qd7 Ra4 Qc8 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 b4 c6 g7 g4 f5 e3 b6 a4 b5 e2 b7 e1B f6 h4 f7 h3 b6 h2 Nh3 a3 Nf2 a2 Ne4+ Kd7 Ke5 c5 d4 c4 d6 Kc6 Ke6 c3 d7 c2 Bc4 Bh4 Nbc3 Nf6 g8Q Bg5 Nb5 Rh5 Bf4 c1Q Qh7 Qe3 Bg3 Bfh6 f8Q Qc8 Qg1 Qf4 Ned6 Ra4 Rd1 a1B Ba2 Bg7 Qf1 B7h6 d5+ Kc5 Kf7 Bh4 d8N Qcf5 Nc8 Nc6 b8R Be5 b7 Q4e4 d6 Bc1 d7 Bc3 Rd2 Bb4 Rd6 Bhg5 Qd1 Bgf4 Ra8 Be5 Re1 h1R b8R Rf1 Re3 Rf2 Ra3 Rb2 Qe1 Be3 Qa1 Bc1 Bh4 Bh2 Bg3 Ng8+ Ke8 Ne5 Ra7 Ng6 Nf7 Nh8 d8R Rh6 Raa8 Re6 Kd7 Nf6+ Kc7 Re5 Re8 Rd5 Kd8 Re5 Rd1 Re6 Rd7 Rb6 Rda7 Rb7 Rd3 Be1 Rd1 Bb4 Rd6
3Nk2R/4p2r/1QR1P3/K1bBq1b1/p3rBNN/QB1q4/3QQb2/1r2nnQ1 b - - 0 1 illegal: No possible last move, all moves rejected
R1N4Q/1NR1pP2/n2Q3Q/B1b1r1R1/1q4Bn/b2b1Np1/qr2Nk2/n2KN3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 Kf6 b4 g5 d4 c5 d6 a5 d7 c4 b6 a4 b7 g3 b5 a3 h5 g2 h6 c3 d5 a2 d6 c2 h7 g4 b6 g3 Nd2 Qe8 d8N Nd7 b8R Bg7 b7 Nh6 Ne6 Ra4 Ndf3 Ng8 Rh5 Ne5 d7 Nh6 d8N Nef7 Be2 Ne5 Qd6 Nd7 Rg5 Qf7 Ra8 Rb4 b8N Rb2 Bd2 c1B Kd1 Ba6 Nbc6 Bd3 Na7 Nb8 Nc8 Na6 Ned4+ Qe6 Rb1 a1N Ne1 Rg8 Ngf3 g1Q h8Q Qf1 Qc7 Qa2 Nb7 Qh1 Qc5 Qh4 Ba5 Rd8 Qa3 Rd5 Qc5 Be3 Rc1 Re5 Qa3 Qg4 Rc7 Bc1 Nb5 Be3 Nc3 Bc5 Qb4 Kf7 f6 Ke6 f7 Nf5 f8Q Nh4 Qd4 Bf6 Qfh6 Ba3 Rg8 Kf5 Qd6 Bc5 Na4 Ke4 f5 Ba3 Rg5 Ke3 Nc3 Bg7 f6 Kf2 f7 Qb4 Bf1 Bf6 Ne2 Bg7 Bh3 Bf6 Rg8 Bg5 Be6 Be3 Rg5 Bc5 Bg4
8/1N1PqqBk/R5b1/1KQ3nB/1R1QQB1p/N1rB3r/3bp1Bq/R2r2n1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 g4 Kg7 b4 a5 f4 e5 d4 h5 d6 c5 f5 e3 Kd3 h4 Kc4 e2 g6 e1R g5 e4 d5 a4 b6 a3 d7 a2 b7 e3 d6 e2 b5 Ra3 b6 Ra4+ Kb5 c4 Qc2 c3 Nf3 Qe8 Nfd2 Ra3 Nc4 Ra8 Bg2 Ra4 Nba3 Rf1 Bb2 Qe3 d8Q Qf2 Na5 Nf6 Qe4 Nc6 b8R c2 b7 c1Q d7 Qcf4 Qb6 Ne5 Qbd4 Nh7 f6+ Kg8 g7 Bb4 Ra8 Qh2 b8B Rd1 Ra6 Bd2 Nb7 Nf3 Bf4 Ng1 Rb1 a1Q Bc3 Qfg3 Rb4 Qe3 Bb2 Qa2 Ba1 Kf7 g8B+ Kf8 g6 Ng5 Bh7 Qf7 Qed3 Qee7 Q3e4 Qfe6 f7 Qd5+ Nc5 Bb7 Bc3 Qb3 Ba1 Ba8 Nb7 Qbe6 Bc3 Q6f6 Ba1 Kg7 Bb2 Kh6 g7 Rc8 f8Q Rc3 Qc8 Qf7 g8B Rh3 Bg6 Q6e7 Qcc5 Rc3 B8h7 Rh3 Rb3 Rc4 Rb4 Rcc3 Bh5+ Qef6 B7g6 Q6e7 Nd8 Bd5 Nb7 Ba2 Qee3 Bb3 Bd3+ Be6 Qde4 Kg7 Ba1 Bf5 Q3d4+ Kh7 Qde3 Rc4 Bg7 Bg6 Q3d4 Rc3 Nd8 Re1 Bc2 N1f3 Nb7 Rb1 Rc1 Ng1 Bd3 Ra1 Rc2 Rb1 Ra2 Rd1 Ra1
4BBN1/1q1PQrbp/k1Q2RB1/2B3K1/b1b1rn2/2R5/p2rqNB1/1n2N1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 c5 Kg4 a5 d4 c4 b4 f6 e4 f3 e5 Kc7+ e6 Kb6 g6 a4 g7 f2 d6 c3 d7 c2 d5 a3 e7 a2 e8B Be7 d6 Ra7 Nf3 Ra4 Ne1 Qc7 Ba3 c1R Nd2 Qc3 Rh6 Qb2 Ne4 Rc4 Rc1 Rc5 Rc3 Kb7 b6 Qb1 b5 Rf5 d8Q Bf8 Qe7+ Bd7 g3 Nc6 Bg2 f1Q Bc5 Nb4 Nf2+ Kb8 b7 Nd5+ Bb4 Ka7 b8B+ Kb7 b6 Ka6 b7 Nf4 Bc7 Qe2+ Kh4 Qbe4 b8Q Qb7 g4 Bb5 Ba3 Re4 g5 Ba4 g6 Rd5 d7 f5 Bc5 Nf6 g8N Bg7 Qc8 Rd2 B7b6 N6d5 Qc6 Rb2 Rd3 Nc3 Kg5 Nb1 Rc3 Rd2 Qc1 Nd5 Bb4 f4 Ba3 f3 Bac5 Be5 g7 Nf4 Rf6 Bd4 Nc2 Be5 Qg1 Bd4 Ne1 Be5 Nh6 Rf8 g8B Bd4 Bb3 Rf7 Bc2 Be5 Ng8 Bd4 Ng4 f2 Bb4 f1B Nf2 Re6 Bg6 Re4 Qee6 Be5 Bf8 Bd4 Qe7 Be5 Rd6 Bg7 Re6 Qd1 Rd6 Bc4 Rf6 Qe2 Bc5+
b1nBq2B/3pR2K/2N1B2p/1q1P4/RQBRN1n1/3r1Nr1/1B2kb1q/3rQ3 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 f4+ Kf6 c4 e5 g4 a5 d4 a4 c6 h6 c7 a3 c5 h3 c6 h2 b6 a2 b7 Ra7 d5 Ra3 g5+ Kf7 f6 Kg6 f5+ Kf7 g6+ Ke8 f7+ Ke7 g7 Kd6 f6 Kc5 Kf5 e4 Kg6 e3 Nf3 e2 Nc3 Kc4 Bb2 Bd6 f8B Bc5 f7 Bg1 Be7 Qe8 Qe1 Kd3 Bd8 Rh7 Ne4 Nf6 g8B Bf2 Rd1+ Ke3 Rd4 a1R Qb4 e1Q Bc4 Qe2 Re1 Rh8 Kg7 h1Q f8B Ng4 Be6 Rg8+ Kh7 Rb1 Bg7 Qh2 Be5 Rd1 Bh8 Rdd3 Ra1 Rd1 Qe1 Rad3 Ra4 Na6 b8R Bb7 c8Q Nb4 c7 Ba8 Qb7 Nc6 c8N Ne7 Na7 Nc8 Nc6 Rg6 Qc3 Qf1 Qbb4 Ke2 Qc1 Ne5 Rb6 Rg3 Qcc3 Ng4 Rba6 Ke3 Qe1+ Qe2 Bb5 Ne7 Na5 Rb3 Bg8 Nc8 Re6 Ra3 Re7 Rc3 Nc6 Rb3 Qf1 Qc4 Ba6 Rbd3 Be6 Qc5 Qg1 Ke2 Bc4 Qb5 Qge1+
4qq2/r2p1RB1/2BPQ1B1/5N2/1K1Q1p1r/2N1br1n/q3Q1nb/kQ2R1QN b - - 0 1 illegal: No possible last move, all moves rejected
1n1N1K2/1p4B1/1R1QN2n/1RN2R1r/1q3q2/nBBQ2b1/Brq2pP1/1b1kB3 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 Kg3 c5 Kh4 f5 Kh5 h6 Kg6 f4 a4 c4 e4 f3 d4 c3 d6+ Ke6 a5 h5 a6 b3 a7 h4 d7 f2 d5+ Ke7 d6+ Ke6 Bb2 h3 Ra5 h2 Rb5 c2 Bc3 c1N Qd3 b2 Nf3 Rh4 Nbd2 b1Q Nb3 Qc7 d8B Qa2 d7 Qe2 Bf6 Rh7 d8B Qb6 Nfd4+ Kd7 e6+ Kd6 e7 Qa2 e8N+ Kd7 e5 Qc7 Nd6 Ne2 Nf7 Ng3 Ne6+ Kc6 Nbc5 Nh6 Bg7 Qc2 Be1 Qd6 Bda5 Ngf5 Bac3 Nd4 Nd8+ Kd5 Kf6 Qb6 g6 Bd6 Rg1 Bc7 Ke7 h1Q Kf8 Qh2 Rh1 Qg3 Rh5 Qf4+ Rf5 Qa5 Be2 Qb4 Bd1 Bd7 Rb6 Ba4 Rb5 Bb3 Rb6 Ba2 Rb5 Bb1 Rb6 Nc6 Rb5 Rc8 a8R Nb8 Ra6 Bd6+ Ke8 Rc7 Rab6 Re7+ Kf8 Bc7 Qe4+ Kc4 Qc6 Rd7 Qd6 Re7 Bf6 Rd7 g7 Rh8+ g8B Re7 Ra5 Nb5 Bg7 Na3 Rab5 Rd7 Qe7 Rd4 Qd6 Rh7 Ng5+ Rd5 e6 Rd2 e7+ Rd5 Nd7 Kb3 Nge6 Rd2 e8Q Re2 Qee7 Rh8 Qd3 Be5 Bcd2+ Kb2 Bc3+ Kc1 Ndc5 Rd2 Bg4 Bc7 Bh3 Kd1 Qed6 Qa2 Nd4 Qe5 Qf6 Nf7 Rg5 Rh5 Be6 Nh6 Rf5 Qe4 Bc4 Bg3 Qd6 Qf4 Bgd5 Qab3 N4e6 Qb2 Ba2 Qc1 Qc4 Rb2 Qf1 Qc2 Bdb3+ Qbd4 Bcd2 Qde4 Qfd3 Qb4 Bdc3+
R1NK1bQB/1p2n2R/5QPQ/1NB3n1/2b1q3/rk1Bq1nr/1B3qp1/N4B2 b - - 0 1 illegal: No proof kernel
1q1r1Q1R/Pp4kN/4Bn1N/1N4r1/p5nN/3b3b/qbQ1QBR1/2nBNK2 b - - 0 1 illegal: No proof kernel
nb4Qn/2QN1n2/BR3N1R/q1RKB3/2rn1Rpp/P1N4b/r1n3R1/4k1Q1 b - - 0 1 illegal: No proof kernel
2N1K3/1bb2nRq/r5Q1/1n1B2bP/BBR1p3/R3Q1bp/rN1Q3b/2R1Rk2 b - - 0 1 illegal: No possible last move, all moves rejected
2BN1K2/3N2nr/1rR1bP2/4r1r1/1pR2N1k/2n1bQ1q/1p1B1r1Q/1RRR3B b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Kf4 c5 a4 b5 h4 e6 d4 g6 h6 c4 a5 b3 h5 b2 h7 c3 d6 b4 d5 c2 a6 Qd7 a7 Qg7 h6 Qe7 d7 Bb7 d8R Qf7 d6 Nd7 Ne2 Bd5 Nbc3 Bc4 Bd2 c1R Na4 Rb1 Bh3 Nc5 d7 Ne7 Nb6 Rb8 a8B Ne4 f3 Rc1 Rb1 g5+ Kg4 e5 f4 Qg7 Kh5 g4 Rf1 Nc3 Bh1 e4 Qc2 Rg8 h8R g3 h7 e3 Qd3 Rc2 Rfc1 g2 Qe4 g1R Qf3 Kf7 f6 Qg3 f5 Be6 Nf4 Rg7 Kh6 e2 Rc8 e1R Rc4 Re5 d8N+ Ke8 Nd7 Rb6 Rg8 Qh2 h8Q R1g5 Be3 Rf2 Bd2 Ned5 f7+ Ke7 Qh7 Nf6 Qh8 Nh5 f6+ Kd6 Bg4 Be7 f8R Qh3 Re8 Rf7 Rg7 Bf8 Kh7 Re7 Rf7 Bh6 Rd1 Ng7 Kg8 Re4 Kf8 Ree2 Nc5 Ke5 Rbc1 Ra7 Rc7 Re1 Rc6 Re3 Bh5 Kf5 Nd7 Re5 Re7 Rg1 Bg4+ Kg5 Rb1 Kh4 Bf5 Bg8 Ree6 Rg5 Red6 Be6 Rdd4 Nd5 Rcc1 Nc3 Rdc4 Rg4 Nh5 Be3 Qh6 Rab7 Qhf4 Rc7 Qh2 Rcb7 Nf4 Rg5 Bg4 Bd5 Nb8 Ne6+ Ke8 Rh7 Bf5 Ng7+ Kf8 Bf7 Bc8 Be6 Nd7
QNr1Q3/KN1rr2n/2bRp2N/1kr1N1b1/2n2B1p/3qB3/P2Q2r1/R4N1B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 c5 g4 b5 d4 h5 f4 b3 f6 b2 f7 h4 f5 b4 f6 b3 d6 Kc6 d5+ Kb6 d7 e6 g6 c4 Kd4 c3 d6 c2 g5 Qc7 d8B Na6 g7 Ra7 g6 Nb4 d7 Na6 Bf4 c1R Nd2 b1R Bg2 b2 Ngf3 Be7 f8Q Ka5 f7 Nh6 g8Q Nc5 g7 Bb7 Nf1 Na4 Qe8 Kb5 f8N Qc2 Ne5 Ng4 Bb6 Nf6 d8N+ Bc6 Nfd7 Nh7 Nb7 Bg5 Qd2 Qb3 Bd5 Rc5 Nb8 Rd1 Rh3 b1R Bh1 Qa3 Rd3 Rb2 Qgf8 Rbc2 g8N Nb2 Nh6 Nc4 Qee7 Qa6 Qc3 Qa5 Nbd7 Qb4 Na5 Qa3 Qa8 Rc8 Qe8 Rg2 Nb8 Re7 Nb7 Rd5+ Ke4 Re1+ Bbe3 Rc1 Qd2 Na5 Rd4 Rdd7+ Rd5+ Ka4 Kd4 Qb3 Rd6 Qb5 Qc3 Qd3+ Kc5 Rcc2 Kb6 Rc1 Qd2 Rc5 Na6 Nc4+ Ka7 Kb5 Nb8
nKbN1rk1/RpB1R1bQ/2P1rp2/1rNr1N1R/2q5/1B5R/rQn3R1/5Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 d5 Kd3 g5 Kd4 g4 c4 f6 a4 Kf7 h4 b3 e4 b2 h6 g3 a5 g2 a6 Bf5 h7 Qe8 c6 Be6 h5 Qd8 c7 Ne7 Kc5 d4 Kb6 d3 a7 d2 c5 Ng8 c6 Ba2 h6 Qd6 c8N Na6 e6+ Kg6 e7 Kf7 e8R Qg3 e5 Qg6 Ne2 g1R Nf4 Ba3 Re7+ Kf8 e6 Nb8 Kc7 Bb4 Nd6 Qc2 Rh3 Qb3 Nc3 b1R Nf5 Rg3 Bc4 Qb2 Ne4 Re3 Qf1 d1R Nc5 Qe2 Bb3 Rd5 Bd2 Ba3 Ba5 Nd7 Rg7 Qa6 Rg2 Nb6 e7+ Kf7 e8R Ne7 Nfe6 Rf8 h8Q Qc4 h7 Bc1 Ba4 Rb5 Bb3 Re1 Rh5 Bh6 Rh3 Bg7 Rh5 Rad8 a8Q Bb1 Qa6 Ra8 Qe2 Ra7 Kb8 Na8 Bc7 Bd3 Qb6 Ra2 Qf1 Be2 Rh3 Bg4 Rh5 Rf2 Ra7 Ra2 Ne3 Nf5 Nd8+ Kg6 Rh3 Nd4 Nf5 Nc2 Re7 Re2 Qg8 Re6 h8R Ree5 Ng3 Bc8 R8h5 Re4 Qe6 Re3 Qd7 Re6 Nf5+ Qg4 Nh6 Kh7 Nf5+ Kg8 Rf7 Rba5 Re7 Qc4 Qb4 Rb5 Qa3 Qh4 Qb2 Qg4 Qe8 Qd4 Qg6 Qc4 Qh7#
knb1KnN1/1p1RQ3/2pb4/6n1/2QB2R1/Rn3BQ1/PRqnR3/N1Br3r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 e5 Ke4 g5 d4 c6 f4 Kc7 h4 b3 h6 b2 f6 g4 f5 g3 d6+ Kb6 d7 Ka7 d5 g2 d6 Rh7 f7 Qg5 d8B Qg3 d7 Bg7 f8R Qa3 h5 Qc5 f6 Qa5 Kf5 e4+ Ke6 e3 Kf7 e2 Qd6 e1N Rh4 Nd3 Nh3 g1N Na3 b1N Bb6+ Ka6 d8R Bd7 Rg4 Qb5 Nc2 Na3 Nf2 Nc5 Be2 Ne4 Rb1 Nc3 Rb2 Ncb1 Ne4 Nh3 Rfe8 Ra7 Na1 Bc8 Bf3 Ne7 Qg3 Nc4 Rd7 Ra8 Ba7 Rh8 h7 Ng6 h6 Qb6 Re6 Nf8 Ke8 Qf2 f7 Qg2 Nf6 Ng5 Ng8 Qc2 Ree7 Na5 Re2 Ng6 f8Q Nb3 Qc5 Be5 Qe7 Nf8 Nf6 Rg8 h8R Bd6 h7 Rg7 Rg8 N1d2 h8Q Rh7 Qhg7 Rh1 Qgf7 Rd1 Rg6 Rh1 Ng8 Rd1 Rge6 Rh1 Bf2 Rd1 R6e3 Kb6 Qfe6 Ra5 Q6f7 Ka7 Qc4 Ka8 Rc3 Re5 Ba7 Re6 Rd3 Rh6 Rde3 Rhh1 Rc3 Na5 Ra3 Nab3 Bd4+
nnBR2n1/Npp3Q1/1R1n1R2/k1Pn2QR/1B2N3/1Kbq1r1N/4R3/b5rQ b - - 0 1 legal: proof: g4 a5 d4 g5 b4 axb4 h3 e5 dxe5 f5 Bf4 d6 Bc1 Be6 Na3 Bf7 Nb1 Bh5 gxf5 g4 Bd2 g3 Bc1 Bg4 hxg4 Ra6 Be3 Ra3 Bc1 Ra8 Kd2 Kd7 f4 Kc6 a4 Kb6 e4 h5 c4 h4 Kc2 h3 f6 d5 f5 h2 g5 g2 g6 d4 f7 d3+ Kb3 d2 g7 Bd6 f8R Ka5 c5 Nc6 e6 Ra6 e5 Qe8 e7 Qf7+ e6 Be5 e8N Na7 f6 Bb2 Nd6 Qh5 f7 Qf3+ Nc3 Rh3 e7 Nc6 e8R Nb8 Nb5 Qd3 Re2 Rg6 Na7 Rf3 Rb1 Ba1 Nh3 g1B Ba3 Bd4 Rd8 Be5 f8R Rg1 Rf6 Bd4 Qc1 d1N Qg5 Ne3 Bg2 Nd5 Bf1 Nge7 g8Q Nb6 Q8g7 Ng8 Bg2 Na8 Rbb2 Rf5 Bc6 Rf2 Bd7 Rf3 Bc8 Be5 Ka2 Bd4 Ne4 Bc3 Kb3 Rc1 Rhe1 h1N Rd1 Ng3 Rh1 Nf5 Rb1 Nd6 Rhh2 Ka6 a5 Qb5 Nhf2 Rg1 Rh5 Qd3 Nh3 Rf4 Nc6 Kb5 a6 Rf3 a7 Ka6 Ka4 b3 Rbb2 Qe3 Rb1 b2 Kb3 Nb6 a8Q+ Kb5 Rf1 b1N Na7+ Ka6 Rd1 Ka5 Rd4 Qd3 Rb4 Nc6 Qb8 Na8 Rb6 Re1 Bf5 Rg1 Qc8 Nb8 Qe6 Rc1 Qd5 Rg1 Bc8 Nd2+ Ka2 N2c4 Kb3 Ne3 Ng3 Rf4 Qh1 Rf3 Ne4 Nd5 Bb4+
2brr3/1NB1r3/k1Qb1r1Q/N4p2/qB1N2BR/3N1bNp/1Q1K1P2/1R1nn3 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 c4 a5 e4 f5 g4 d5 b6 Kd7 c6+ Ke8 b7 h5 e6 d4 e7 d3 c5 a4 e5 a3 g5 h3 c7 Kd7 e8N Kc6 e6 Kb5 e7 h4 g6 a2 c6 h2 g7 Qd4 Ne2 Ka6 Bh3 Nd7 b8B Kb6 Kd2 Ne5 Nf4 Qe4 Nc3 Nh6 g8N Ba6 c8Q Rh7 c7 Rg7 Nb5 Ng6 Bg4 Qa4 Ngf6 Ka5 Qb7 Ne5 Rb1 a1R c8N Rh7 N6h5 Nf3+ Kc3 d2 Nb6 Ra2 Nd3 Ne1 Bc7 Rg7 Qdf3 d1R Ned6 Re8 Ng3 Ra1 Qb8 Bc8 Ba3 Ka6 Qc6 Rf7 Nd4 Rf6 Bb4 h3 Nb7 Ra2 Rg1 h1B Qe6 Re2 Nc4+ Bc6 Nca5 Rdd2 Qe3 Bf3 Qf4 Rd8 e8Q Re7 Qg5 Rde2 Qh4 R2e4 Kd2 Re3 Qg6 Ree8 Qhg5 Bd6 Qf4 R3e7 Qe4 Nf7 Qh6 Ng5 Qd5 Ne6 Qc5 Nf4 Qc1 Nfg2 Qb2 Be6 Qc8 Ne3 Qd7 N1g2 Rge1 Nd1 Re4 Ne1 Qc6+ Ka7 Bh5 Bd7 Rh4 Bc8 Qe4 Ka6 Bg4 Nc3 Qd5 Nd1 Qc6+
1NB5/QN6/1NrnNnK1/1Rpb3R/1Pr5/B1qQ2kN/3Brp2/1rR3bn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 g5 b4 c5 h4 f3 b6 g4 b7 g3 h6 g2 h7 a4 h5 f2 h6 a3 Bd2 f6 Nc3 a2 Na4 Ra5 Rc1 a1R Rh5 Rb5 Nh3 g1R Nb6 Nc6 b8N Bb7 Kf5 Rb1 e4 Na7 Qe2 Be7 Qd3 Rg4 Bg2 Rf4+ Kg6 f1N Bh1 f5 e5+ Kc7 e6 Kd6 Bg2 Bg5 e7 Ng3 e8Q Nh1 Qf7 Nc8 Qg7 Bc6 Qa7 Nf6 Bf3 Qe7 Bg4 Re8 h8R Qe1 h7 Re2 Rf8 Ra5 h8B Ra6 Rf7 Rfe4 Rb7 f4 Bg7 f3 Bd7 Be3 Bh8 Ke7 d6+ Kf8 d5 Bg1 Bg4 f2 d7 Ke7 d8N+ Kd6 Ne6 Rc4 Bf5 Ke5 d6 Bf3 d7 Nd6 d8N Bg2 Nc8 Bc6 Rb5 Bd5 Nb7 Rc6 Nb6 Qd1 Neg5 Qb3 Bc8 Qc3 Ne6+ Nf5 Qg3+ Ke4 Qd6 Kf3 Qd7 Kg3 Bg7 Bf3 Qd3 Nd6 Bgh6 Qe5 Bhe3 Bd5 Bd4+ Qe3 Bb2 Qf3 Ba3 Qe3 Qc2 Qc3 Qd3+
NQN2Bbr/R1n3n1/1bR2k1b/1P5Q/KR3B1r/2qBB1B1/p2p4/Qb5n b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 g5 c4 d5 Kc2 a5 Kb3 e5 h4 d3 h6 d4 c5 g4 h7 d2 h5 e4 c6 d3 h6 e3 c7 e2 f6 e1B b6 g3 b7 g2 f5 Bg7 Ne2 g1N Rh4 Bg3 Nec3 Be5 Qh5+ Kf8 f7 Ke7 f8B+ Kf6 Nb5 Bg3 Nd6 Be6+ Ka4 Nh3 c8R Nf2 b4 Bd7+ b5 Qc7 Rb4 Ne7 Na3 Na6 b8B Qc3 Nac4 Nh1 Nb6 Be6 Rc6 Nc7 Ndc8 Bf2 Ra3 Ra7 Na8 Bb6 Ra1 Ne8 Bc7 Nd5 Bf4 Ndc7 B8d6 Bf8 Bg3 Ng7 Bdf4 d1B+ Rb3 Bg4 Bce3 d2 Bd3 Bf3 Rb4 Be4 Ra3 Rg8 h8Q Rb7 Qh7 Rh8 Qg8 Ra7 h7 Rb7 Be2 Bb1 Bd3 Rb8 Na7 Rd8 Nc8 Rd4 Ra2 Nge8 Ra1 Bh6 Ra3 Ng7 Qge8 Rf8 h8Q Rc4 Nd6 Bg8 Qb8 Ke7 f6+ Ke6 f7 Kf6 Bh2 Rd8 Bfg3 Rh4 f8B Bf7 Be5+ Ke6 B5f4 Nf5 Bhg3 Qc1 Qa1 Ng7 Be7 Rh8 Bf8 Bg8 Kb3 Qc4+ Kb2 a4 Ra2 Kf6 Ka3+ Qd4 Rbc4 Qe5 Kb4 a3 Nc8+ Nge6 Kb3 Qd4 Ra4 Qe5 Rb2 a2 Ra7 Qc5 Ka4 Qc3 Rc4 Ng7 Rbb4 Qb2 Rc5 Qc3 Rc6+
1RB1KB2/3R1BrQ/4nb1p/qbN1b1R1/3Q3r/rQ1Q2nk/P1p3N1/Q4b2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 b5 Kf4 c5 Ke5 b3 d4 h6 g4 b4 f4 e6 f6 c4 f7 b2 g6 b3 g7 c3 d6 Qa5+ d5 Qa7 g5 Bb7 g6 Qb6 f5 Qb4 f6 Qa5 Nf3 Na6 Nh4 Ra7 Ng2 Nb4 Rh5 Rh7 Ba6 Be7 f8Q Nc2 f7 Bc6 Rg5 Bb5 Qb8 Nd4 f8R Nf6 g8B Nh5 g7 Ng3 Nd2 b1B Ba3 b2 Nb3 B1d3 Bf7 b1R g8Q Rg7 Qh7 c2 Qg1 Rb2 Rd1 Bf1 Qb6 Ra8 Rb8 Bd8 Bb4 Bc7 Kf6 e5 Qh1 e4 Bb7 e3 Bc8+ Kd8 d7 e2 Rd3 e1B Bf8 Bc3 Nc5 Rb4 Qe6 Bf4 Rd2 Kc7 Ke7 Be5 d6+ Kc6 Qc4 Ne6 Qb3 Rh4 d8Q Bf6+ Ke8 Bce5 Rd4 Ra7 Rc4 Kd5+ d7 Qb4 Rc3+ Kd4 Re3 Ra3 Re1 Qa5 Rd1+ Bfd3 Nf4 Ke3 Ng2+ Kf2 Rd2+ Kf3 Qa1 Bd4 Rd1 Bde5 Qb6 Kf2 Qd6 Bf1 Qdd3 Kg1 Qdd4+ Kh2 Rd3 Ba6 d8Q Kh3 Rd1 Bac4 Qdd3 Ba6 Q8d4 Bb5+ Qd7 Bc7 Qdc4 Kh2 Rd6 Kh3 Qcd3 Bc4 Qda4 Bb5+ Rd7 Bce5 Q4d4
2rB1nqR/6n1/1RB3p1/R1p2N2/1QrNK1Rn/1BbQQ1P1/1r3kr1/5bR1 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf8 h6 Qd6 Nf3 Qe5 Ng1 Qg7 hxg7 Be6 Qa4 Bg4 Qd1 Bc8 Kf2 Ke7 Kf3 Kf6 b4 Ke5 e4 Kd4 g3 f5 e5 c5 b6 a5 e6 h5 e7 h4 e8B h3 d6 h2 b5 a4 b7 a3 d7 a2 d8Q+ Nd7 b8Q Ra4 b6 Nh6 g8R Rc4 b7 Bg7 Qe7 Nf8 Nc3 Bd7 d3 Bb5 Bc6 Bf6 Ne4 Be5 Rb1 a1R Nd6 Ra2 Ra1 Rb2 Ra5 Ba6 Qd2 Bg7 Qbd8 Bf6 b8R Bb5 Kf2 f3 Rb6 f4 Be2 Nf5 Bd1 Nh4 Bb3 Bg7 Qee2 Bf6 Qb4 Be5 Rg7 Ba6 Rh7 Rg8 Rh8 Bf6 Ke1 f2+ Kd1 f3 Bg5 f1N Qd7 Bg7 Bd8 f2 Qee1 Bf6 Ne2+ Ke3 d4 Bb5 d5 Bc3 Rg1 h1Q Nf5+ Kf3 Kc1 Ne3 Qd6 f1R Ned4+ Ke4 Qd7 Rff2 Qd2 Rg2 d6+ Nd5 Qf4+ Kd3 Qf3+ Ne3 Qe8 Ba6 d7 Qh2 Be7 Qh3 d8R Qg4 Ra8 Qh5 Bd8 Qh7 Ra4 Bb5 R8a5 Ba6 Nb5 Qg7 Qd5+ Ke2 Qd3+ Kf2 Nbd4 Qf7 Nh6 Nef5 Qee4 Ng7 Nhf5 Rb1+ Kc2 Qe8 Qd1 Rb2+ Kd3 Bb5 Qe7 Qf7 Ke4 Ba6 Qd3 Bb5 Rh5 Rh8 Qg5 Qg8 Kf4 Rh7 Qa3 Ne8 Qd1 Rc7 Rh8 Rb4 Qd2+ Be2 Qd3 Rb5 Ne6 Ng7 Re4 Rc8 Ned4 Rb4 Qe7 Rc4 Qb4 Ne8 Ke5 Ng7 Rg4 Bf1 Qg5 Qh7 Ke4 Qg8 Qge3#
RN2rBRQ/2n1rQn1/1QB2Pb1/2npnQBN/1b1k4/2pN4/2K5/r1Q2q2 b - - 0 1 illegal: No proof kernel
5Bb1/1NBRn3/5pNr/2b1rbPr/2N3N1/kpK1b3/qR1n2B1/3QN1QQ b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Ke7 a4 b5 e4 h5 d4 c5 Kd2 b3 g6 b4 d6+ Ke6 a5 b2 g7 h4 d5+ Kd7 g5 b3 a6 h3 e6+ Ke8 e5 h2 a7 c4 d7+ Ke7 Ra2 Rh5 Na3 b1B Rb2 Bg6 Bg2 Qb6 d8B+ Ke8 e7 Kd7 e8N Na6 d6 Rb8 a8Q Qa7 Bc7 Nc5 Kc3 Ne7 g8N Bh7 Nf3 Rb5 Ne1 Qa4 Rf1 h1R Nef6+ Ke6 Ng4 f6 d7 Ne4+ Kd4 c3+ Nc4 c2 d8N+ Kd7 Nb7 Kc6 e6 Re5 Bd2 Kb5 Bb4 Nd2 Kc3 c1B Qa7 Bg7 Qg1 Bf8 Rf4 Bd7 Rd4 Qa2 Rd6 Bc8 Rd7 Ka4 Bc5 Rh6 Bb4 R1h5 Bbd6 Nf5 Ne7 Bg8 Ng6 Be7 Bb4 Bd6 e7 Bc5 e8Q Ne7 Rd5+ Bd7 Qf8 Bf5 Rd7 Nf3 Qf7 B1e3 Qfd5 Nd2 Q5f3 Bb6 Bbd6 Bbc5 Qff1 Nc6 Bf8 Ne7 Ncd6 Ka3 Qh1 Rh4 Qfg1 R4h5 Nc4+
r2Q1nK1/2n5/qRBb1pBR/P1Q1R3/r1Q3n1/p1rb1Nk1/3BNn2/2R2R2 b - - 0 1 illegal: No proof kernel
Rq1Qn1rb/1n5B/1Bn1Prb1/3r3p/N1n1Q3/k1KR1Q1p/1R2RN2/5R1B b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 b4 Kd7 e4 a5 g4 f5 d4 c5 Kd2 h5 g5 a4 g6 c4 g7 a3 b6 f4 e6+ Kd6 e7 a2 e8R f3 e5+ Kd7 b7 f2 d6 Kc6 d5+ Kb5 d7 Ra6 d6 Qc7 d8R Bf5 d7 Bc2 Kc3 Ka4 b5 Qb6 Qf3 Nf6 g8B Bg6 Bg2 f1N Nh3 Ne3 Bh7 Nc6 b8Q Bg7 Nf2 h3 Qb7 Rg8 Rf1 Bh8 Bh1 Ra5 Qa8 Qb8 b6 Ra6 Re7 Ne8 b7 Ra5 Ba3 Ra6 Bc5 Ra5 Ba7 Rd5 Nd2 Ka3 Nb3 Rc5 Rad1 a1R Rd3 Rd5 Nc5 Rd1 Rc8 Rd6 d8Q Rf6 Na4 Rd2 Rd6 Rd5 Bb6 Rb5 Rd3 Rd5 Kd2+ c3+ Ke2 Qd6 b8R Nc4 Qb7 Qb4 Ra8 Qb3 Rcb8 c2 Re6 c1N+ Ke1 N6a5 Re7 Ne2 Re6 Ncd6 Kd2 Nd4 Qc6 Ndb7 Qc4 Ndc6 Qce4 Ka2 Re7 Qb5 Kc3 Nc4 e6 Nbd6 Rd7 Nb7 Re3 Ka3 Re2 Rg5 Rd3 Rd5 Qee3 Qc5 Qee4 Qd6 Ra5 Qf4 Rba8 Qh2 Rb5 Qb8 Rbb2
2B3kB/2BR1r1Q/1rbbpn2/1p5N/2b1rq2/PQ2r3/6RB/NKnQRB2 b - - 0 1 illegal: No possible last move
2QKNqb1/BbB1QN2/rBp3Q1/r2n1b1Q/3R3Q/bp2n3/1P4Rr/N1k5 b - - 0 1 illegal: No proof kernel
5bB1/1NQNB1q1/1p1N2b1/r2nN3/nrP2n1n/BRR1k3/pr6/1Q2KQ1N b - - 0 1 illegal: No proof kernel
1Q1KRBR1/3Q1BPr/1k3n1b/3nB3/RbnN4/3Brp1p/N1n1b3/2B1N1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 c5 Ke5 Kc7 b4 f5 e4 a5 d4 f3 g4 f2 d6+ Kb7 b6 a4 d5 h4 g6 h3 g7 c4 g5 f4 b5 a3 g6 c3 d7 a2 Ke6 c2 e5 Qg5 d6 Ra7 Nf3 Rh4 Nc3 Ne7 g8B Qg3 Bf7 Ra6 Ne1 f3 Rg1 Rc4 Bd3 Ka8 b7+ Ka7 Rg2 Rac6 b6+ Ka6 Kf6 f1N d8B Ka5 e6 Qg4 d7 Ne3 Bc7 Qg3 d8B Re4 Be5 Nc4 Bdc7 Bh6 Bcd6 Re3 Rg1 Rc7 Qd2 Na6 b8N Nc5 b7 Kb6 Nc6 Qg2 Nd4 Nd5+ Kf5 Nd7 b8Q+ Rb7 Bf8 N7f6 Qd1 Bd7 Qd2 Bb5 e7 Ba6 Ke6 Qh2 Rg4 Qg1 e8R Bb5 Rb1 a1N Na2 Nd6 Rb4 Nc4 Ra4 Ba6 Bca3 c1B Qd1 Bd2 Bc1 Nc2 Rg3 Nc7+ Ke7 Bb4+ Kd8 Ncd5 Rg5 Bg7 Rh5 Bb5 Rh8 Bh6 Rg8 Nb2 Bf1 Be2 Qd3 Nc4 Qf5 Bd1 Bd3 Be2 Qd7 N2a3 Qg4 Bd6 Be6 Nc2 Qf5 Kc5 Qg4 Rh7 g7 Be7+ Kc8 Bd6 Bf7 Be7 Qd7 Bd6 Qa8 Kb6 Kd8 Bb4 Qb8#
1BRNB2r/1R4Pn/1n3RbN/pNk3b1/Q4r2/3QKQn1/p2Q1Q2/3q1r1r b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Bd7 hxg5 Bc8 Ke2 Kd7 g4 Kd6 b4 a5 f4 e5 d4 h5 f6 c5 b5 a3 f7 c4 b6 a2 f5 h4 f6 e4 b7 c3 g6 h3 g7 h2 g5 e3 g6 c2 Nf3 Rh7 Na3 Rh6 Ne5 Nd7 b8Q+ Qc7 Qb3 Ne7 g8R Nc6 g7 Na7 Ng4 Qc4+ Qbd3 Rh4 Nh6 Qa4 Rb1 Qc4 Rb7 Be7 f8Q Rh3 f7 Qc7 Rh8 Nf6 Nb5+ Kd7 d6 Kc6 d7 Rh4 d8Q Qd7 d5+ Kc5 d6 Nh7 Bb2 c1R Be5 Bg5 Qa4 Rf4 Bh3 Rb8 Rf1 h1N Bg4 Rd1 Bh5 Rb1 Qd2 Ng3+ Kd3 e2 Ke3 Qg4 Rf3 Bf5 d7+ Be7 Qd3 Nc8 Rf2 Ra8 Bb8 Nb6 Bg6 Rh1 Rf1 Bd6 Qg5 Be7 d8N Qh3 Rf3 Qg2 Rf2 Qd5 Bh5 Bg6 Rf1 Rg4 Rf6 Rf1 Qgf4 Qd7 Qf2 Rf4 Qg8 Qd6 f8Q Qd5 Qgf7 e1R+ Qfe2 Rb1 Qed2 Rh1 Rg8 Rbf1 Rh8 Qd7 Qfb3 Qd5 Qbd1 Qb3 Qf3 Qd1 Qff2 Bf5 Be8 Bg6 Rd6 Bh4 Qf7 Bg5 Rf6 Bf5 Qh5 Bg6 Qhf3 Qa1 Ndf7 Qb1 Bd7 Qb4 Be5 Rd8 Bb8 Qb1 Bc6 Qd1 Re8 Rd6 Rc8 Rd7 Qg4 Rd8 Qgf3 Rg8 Nd8 Rh8 Be8+
8/1NRrnpr1/B2b1rb1/1n1Qq3/b5K1/1RPR1QBB/bp3B1N/Qk4B1 b - - 0 1 illegal: No possible last move
2nNRQ2/4p2q/2BN1rk1/B3r2b/Q1pr3N/2bNn2P/BR3r1n/NK2R3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 d4 b5 Kd2 c5 Kc2 g5 a4 g4 d6 g3 h3 g2 d5 Rh6 f6 Rg6 f5 Qa5 d7 Rh6 d8R Qa7 a5 Qb6 d6 Rh8 d7 Bh6 a6 Bd2 h6 Nc6 h7 Na7 Ra2 Bc3 Nd2 b3+ Kb1 b4 Ne2 g1N Re8 b2 Nf4 Nh6 Nd3 Nf3 Qa4 Rf8 Nb3 Nh2 Bd2 N6g4 Na1 Ne3 Be2 Qb7 Re1 Qe4 Bf3 Qh4 Bc6 c4 h8N+ Kg8 d8N Qh7 f7+ Kg7 f6+ Kh6 Nb7 Bg4 Nd8 Nc8 a7 Bh5 Be4 Rb8 a8B Rb5 Bac6 Re5 Bf5 Rg8 f8N Rg2 f7 Rf2 Nfg6 Kg7 Ra3 Kh6 f8Q+ Kg5 Ka2 b1R Nh4 Rd1 Nhf7+ Kf6 Nd6+ Kg5 Nc1 b3+ Kb1 b2 Bc2 Rf6 Rb3 Rf2 Ka2 b1R Nd3 Rbc1 Rb2 Rf6 Bb1 Rc2 Bc1 Rcf2 Bd2 Bd4 Ba5 Bc3 Bc2 Rdd2 Bb3 Rd1 Nc5 Rd4 Nd3 Rc2 Kb1 Rcf2 Qh8 Kh6 Ba2 Kg5 Qg8+ Kh6 Qf8+ Kg5 Nhf5 Kg6 Nh4+
2RKb3/1Q2p1Rr/P2RrNB1/2q1k1B1/r1N1B1b1/npQ1Nr1n/8/2B1B1b1 b - - 0 1 illegal: No possible last move
b1R4B/1P1pn1bb/1BBN3B/1q3nk1/1B1Q2N1/1Q2np1K/R2R1r1Q/1r2b3 b - - 0 1 illegal: No possible last move
5BR1/4b1Q1/2nr1Q2/B3pbPn/2Nn1nR1/2qpNNNB/r2qNK2/1k4R1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 e5 g4 a5 b4 h5 b6 d5 g6+ Kf6 b7 h4 g5+ Ke7 g7 Kd6 b5 Kc5 f6 Kb4 b6 h3 c5 h2 f7 d3 f5 d2+ Kf2 d4 f6 d3 c6 a4 c7 a3 Qf3 Kb3 Bh3 Kc2 Nc3 d1Q Nge2 a2 Bd2 Ne7 g8N Nec6 Nh6 Nb4 Ng4 Bc5+ Ne3+ Kb2 f8Q Rh4 f7 Rc4 Ne4 Be7 Rg1 Nd5 Ba5 Rd4 Rg4 Bf5 c8N Qc7 N4g3 Qd2 Qg7 Qcc3 f8B Nc6 b8N Nf4 b7 Rd6 Rg1 a1N Nb6 Nc2 Nbc4+ Ka2 Bb6 N2d4 Ba5 Nd8 Nc6 h1N+ Kf1 Kb1 b8R+ Nb3 Ncd4 Nc6 Bb4 Ra2 Ba5 Nf2 Ra8 Ne4 Qf2 Nf6 Nf3 N6h5 Re8 Ng6 Rc8 Nbd4 Kg2+ Qcc1 Qf1 Qc3 Kf2 Ngf4 Nh4 Nc2 Kf3 Nd5 Kg2 Bd7 Qff6 Ndf4+ Kf2 Bf5 Nf3 N2d4 Re8 Bd8 Be7 Qd2 Rh8 Qc3 Bf8 Be7 Rg8 Qd2 Ngf1 Qcc3 Ng3+
1B2r2R/1r5n/q5rR/N1bPp3/2r2Qpn/QN4K1/BBqQ1Q2/1bQ3Nk b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kd7 b4 Kd6 f4 g5 Kf2 e5 d4 a5 b6 c5 f6 a4 b7 a3 b5 c4 b6 c3 h5 a2 h6 c2 f5 Bg7 f7 Nc6 b8N Qe8 f8Q+ Nce7 h7 Qg6 b7 Nf6 Rh6 Ra7 Bb2 c1R Nd2 Rc4 Nc6 g3+ Kf3 g2 b8B+ Rc7 Nb3 Be6 Rb1 a1Q Qc1 Qa6 Kg3 Bd7 Qf7 Re8 h8Q Nh7 f6 Bf5 Nca5 Bf8 Ra1 Be4 Bd3 Qf5 Bb1 Ng6 Ba2 Nh4 Qhg8 Bb1 Qgg7 g4 Qgg5 Qc2 Qgf4 Be7 Ba7 Rb7 Bb8+ Kd7 Qf8 Bc5 d6 Ke6 d7 Kd5 f7 Rb6 Qf2 Ke4 d8Q Rbe6 Qfd6 Rg6 f8Q Bb6 Qa3 Bc5 Nh3 g1R+ Qg2+ Kd3 Qff4 Rh1 Qgg1 Ke2 d5 Rh2 Qdf6 Rh1 Qgd4 Rd1 Ng1+ Ke1 Nf3+ Kf1 Qdd2 Re1 Ng5+ Kg1 Nf3+ Kh1 Ng1 Ree4 Qff2 Rb4 Q6f4 Rec4 Nb7 Rg7 Qa4 Nf6 Rh8 Qb6 Qa6 Qd1 Qa4 Nh7 Qa5 Bd3 Bb1 Rg5 Ra4 Qf6 Ba2 Bb1 Qa7 Qc2 Ra6 Qc6 Rb6 Qa4 Rh6 Rg6 Qa6 Qc6 Qa3 Qa6 N7a5 Rb5 Qfe2 Rb7 Qef2
2nRN2Q/4RRN1/KN5n/2P2B2/b3rpr1/bRq1k3/n1n1p1Q1/R1BQq3 b - - 0 1 illegal: No proof kernel
N1KN2Q1/1Bn1N2N/bBP2r2/pb2QBn1/1N2q3/p4Qr1/1b4k1/RRq2b2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 bxa4 d4 f5 exf5 g5 hxg5 Nc6 dxc5 Nb8 Ke2 Kf7 Kd3 e5 Kc4 a5 Kd5 h5 g4 a3 c4 d6 b4 e4 f4 h4 c6 h3 b5 e3 g6+ Kf6 b6 e2 g7 e1Q b7 h2 c5 Rh6 c7 Ra6 g5+ Kf7 c6 Qe2 f6 Kg6 f5+ Kh5 g6 Kg4 f7 Kg3 f6 Rh7 Nc3 Qe1 Nge2+ Kf2 Nb5 Qc3 Bh3 Rb6 Nf4 Na6 b8Q Nh6 g8Q Qe8 Bf5 Bg7 f8N Nf7 N8e6 Rh6 Nd3+ Kg2 Nd8 Ng5 Be3 Qc1 f7 Bb2 g7 Rf6 f8N Qe7 Re1 h1B Nh7 Bb7 c8B Qe8 Na7 Rb3 Bb6 Qe2 Nb4 Rg3 Nb5 Qee3 Qb3 Qe2 Qc3 Nc7+ Kd4 d5 Kc5 Ba6 Bb7 d4 Rd1 Nce6+ Kd6 d3 Kd7 d2 Nc7 Qe4 Na8 Nc7 Kc8 Bb5 Re1 d1B Qcb3 Bde2 Qf3+ Kh2 Rd1 Bg2 Rb1 Bgf1 Ra1 Na6 Qe5 Nc7 Re1 Qcc4 Reb1 Qc1 Qge8 Bec4 g8N Ba6 Ne7 Bcb5 Qff4 Kh1 Qg8 Kg2 Qf3+
RQnrb3/2q1B3/1Np1b1B1/Q2B2bQ/1bRP1kr1/1p2Q3/1N2q3/KN4nQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 d4 Kf6 Kd2 b5 Kc2 g5 Kb2 e5 a4 g4 h4 b3 d6 g3 a5 e4 h6 b4 h5 e3 d7 e2 h7 e1B h6 g2 a6 Bg3 a7 Bg7 Qh5 Be1 Ne2 g1Q Nec3 Qg5 Nd1 Na6 Bd3 Rb8 a8B Rb6 Bd5 Nc5 Ra8 c6 Ka1 Qg2 Nb2 Qc7 d8Q+ Ne7 Rg1 Re8 h8Q Nd7 h7 Qe2 Qh3 Rb5 Qe3 Rb8 Bd2 Bh4 Rc1 Rg8 Rc4 Ne5 Be1 Bg5 Bh4 Be6 Bc2 Qd6 Qa5 Nf3 Bce4 Rgd8 Qe8 Qc7 h8Q Rb7 Qeh5 Ng1 Q8h7 Nc8 Q7h6+ Ke7 f6+ Kd6 f5 Bf8 f7 Ke7 Qh7 Kf6 Bc2 Bd6 f8N Rb5 Bg2 Re5 Bd5 Re4 Bg3 Bc5 Bd6 Rg4 Qh1 Bf4 Nd7+ Kg5 Bf8 Be7 f6 Bd6 f7 Be7 Nd3 b2+ Ka2 Bd6 Nb6 Be7 Q7h4+ Kf5 Q4h3 Bfg5 Qh5 Bc5 Be7 Bd6 Nd2 b1B+ Ka1 b3 f8Q+ Bf7 Qfh6 Bb4 Qd6 Be6 Qdh2 Qa7 Qb8 Qc7 Bd1 Bc2 Nb2 Be4 Nb1 Bd3 Qeh3 Kf4 Bc2 Bg6 Bf5 Bgf7 Bg6 Be8 Qe3+
3K1Q2/bNRQ2pR/2Bq1p1b/1n4NQ/2bB1r2/1Pn2RB1/1r2k1b1/Q2Q2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 h4 a5 e4+ Kb4 d6 f3 h6 a4 h5 c4 d5 c3 d7 f6+ Ke6 c2 b6 f2 d6 a3 h7 a2 b3 Be7 b7 Nc6 b8B Ra4 e5 Ba6 h6 Qe8 d8R Bb7 d7 Na5 Nf3 Qh5 Be3 c1Q Na3 Kc3 Bd4+ Kb4 Ng5 Qf3 Bb5 f1B Bc6 Nc4 Nb5 Qff4 Rc8 Bd6 d8Q Na3 Kd7 Ne7 e6 Nd5 e7 Nc3 e8Q Bc4 Qee1 Qg3 Rh4 Bf4 Nd6 Nb5 Rc7 Qa3 Qde8 Qg1 Kd8 Bd2 Rc1 a1B Rf4 Be3 Rf3 Bb2 Rc2 Bbc1 Rh2 Ba8 Nb7 Bf2 Be5 Ba7 Bd4 Bf4 Ke7 Bc1 Qd7 Rc8 h8Q Bf4 h7 Bc1 Ne4 Bh6 Ng5 Rd8 Qc8 Re8+ Kd7 Re2 Kd8 Ra2 Qd7 Rb2 Nd6 Bb7 Qf8 Ba8 h8Q Bb7 Be5 Kc5 Qa1 Qb4 Bg3 Kd4 Qf1 Ba8 Nb7+ Qd6 Qh7 Rb4 Qg6 Ra4 Qh5 Rb4 Rf4+ Ke3 Qfd1 Be2 Rh3 Re4 Rfh4 Bc4 Be5+ Kf2 Re3 Rg4 Bd4 Rf4 Rf3+ Kg2 Nc5 Re2 Rf1+ Rf3 Rb7 Qdh2 Qhe8 Rb2 Be4 Qe5 Bd6 Qe6 B6e5 Qd6 Rc7 Bad5 Bg3 Bb7 Nf7 Bd2 Rh7 Bh6 Ng5 Ba8 Qh5 Bad5 Bg6 Rf4 Bf7 Bf3 Bd5 Be4 Bc6 Bed5 Rf3 Be4 Rd3 Bf3 Be1 Kf1 Nb7 Bg2 Rf3+ Qf2 Qdb1 Ke2 Qc1 Qf1 Bg3 Qg1 Qd1+
1Q2QR1q/5pBq/1KBr1kbn/1p2N1b1/1P1R2q1/1r2B2N/3BnBQ1/1q5R b - - 0 1 illegal: No possible last move
rq2rRn1/2QP1p2/2Qb1N1R/Q1R1NBqb/8/Bb2B2n/R2pR3/1K1b3k b - - 0 1 illegal: No proof kernel
1q1Q1NbQ/3p4/kBrbR2N/Q4p2/r3Pbb1/1BN2nR1/Q1Qn4/2K1B2q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 e4 g5 c4 f5 h4 d3 b4 g4 c5 g3 b6 a4 e6 g2 b5 a3 h6 a2 h7 Ra6 h5 Qh4 c6 Kd8 h6 Ra5 b7 Kc7 e7 Kb6 e8Q Bg7 c7 Nc6 b8Q+ Bb7 c8Q Qh2 Nh3 g1B+ Nf2 Nce7 Qdc2 Ra7 Qcd8+ Qc7 Qf7 Nc8 Rh3 Ra3 Qa8 Nge7 Nc3 Bd5 Rg3 Ng6 Ng4 Nd6 Qa5+ Kb7 b6 Bc5 Be2 Qb8 Bd1 Ne5 Rb1 Re8 h8N a1Q h7 Re6 Ng6 Ra4 h8Q Bf8 Bb2 Ndc4+ Kc1 Rc6 Nh6 Bfd6 Nf8 Nd2 Ba3 Bb3 Bb4 Be3 Bc5 Bf4 Bf2 Qa2 Be1 Nef3 Qfg8 Bf7 Rb5 Qe6 Re5 Qe7 Re6 Qh4 Qae5 Ka6 b7 Qh1 Qc5 Qc7 b8B Qc8 Bc7 Qb8 Qgg7 Bg8 Bb6 Ra5 Qge5 Ra4 Qa2 Nc4+ Kb1 d2 Bb3 d1B Qcf2 Ncd2+ Kc1 Nh2 Qd5 Bg4 Qfc5 Nhf3 Qd3+ Kb7 Qdc2 Ka6 Qa5+
1Rbn3r/2p1b2q/3N4/2Rq1n1B/1BBNQQ2/1QKRq1qB/p2BP3/1r3k2 b - - 0 1 illegal: No possible last move
3q1NR1/Nnp3bq/K5Qk/1Qr2Qp1/B4R2/1b2B1RN/3q1Pnr/1Q4Qq b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 e5 Kc4 g5 b4 Kg7 h4 a5 d4 e4 d6 a4 f6+ Kh6 h5 g3 b6 a3 Kb5 g2 d7 e3 d5 e2 d6 e1Q f7 a2 b7 Rh7 Rh3 Qe4 Rg3 Qh4 Na3 Kg7 h6+ Kg6 Bd2 Qe7 d8Q Ra6 d7 Qd6 Qe8 Ne7 d8Q Ra7 Be3 Qh1 Qdd7 Na6 b8Q Rg7 h7 Nd5 h8R Rh7 Rg8+ Bg7 Qb7 Rh2 Nh3 g1Q f8N+ Kh6 Bc4 Bc3 Bb3 Bg7 Qb6 Qg6 Qf5 Nf4 Qf1 Qgg2 Qg1 Be6 Rc1 a1Q Ba4 Qf3 Rc4 Ng2 Rf4 Qc3 Ka5 Qcf6 b5 Qe2 Qbb8 Bf7 b6 Qh7 b7 Qd8 Nb5 Be6 Qc6 Nc5+ Qa6 Qd4 Qe8 Qd8 b8Q Rb7 Na7 Qed2+ Rb4 Rb6 Qad3 Bf7 Qdb1 Rc6 Qb5 Bb3 Qef7 Qd1 Rf4 Q1d2+ Qb4 Nb7+ Kb5 Rc3 Ka6 Rc2 Qbb5 Rc5 Q7g6+
1b2RK2/rpb1N2k/1Q4pn/6Q1/R2R2Q1/1PB1q1r1/B1b1BN1R/1b1qn1R1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 Kf2 f5 Kf3 Kf7 h4 c5 a4 c4 d4 g6 e4 Kg7 a5 c3 e5 c2 a6 Be6 d6 Be7 h6+ Kh7 d5 Qe8 d7 Nf6 d8R Kg8 h7+ Kg7 h5 Qg8 d6 Qf8 h6+ Kf7 d7 Qg7 Nh3 Rg8 h8Q Bb4 h7 Bd6 Nc3 Rf8 Bd2 c1B Be2 Ng4 Rh2 Nh6 Nf2 Nc6 Qb6 Bc7 a7 Ba2 Nd5 Bb1 Bc3 Nb4 Ne7 Nc2 Re8 Qf6 d8R Qg5 Rd4 Qg1 Raa4 Qe1 Rh1 Qd2 Rg1 Qe3+ Kg2 f3+ Kh3 f4 Kh4 Ne1 Kg5 Rd8 a8Q Bd2 Nh3 f2 Qc8 f1Q Qg4 Ra8 Nf2 Ra5 Ra8 Rc8 Qd8 Kg7 h8R Ra7 e6 Bb8 Re8 Kh7 Kf6 f3 Qd5 Rc5 Qdg5 Bc7 Rad8 Bc1 Rd2 Rb5 R8d4 Rb3 Ng8 Bb8 Ke7 Ra3 Kf8 Bc2 Nh1 f2 e7 Rb3 Bd1 Qfd3 Be2 f1B Nf2 Bc7 Ra8 Bg2 e8B Be4 Bf7 Bb1 Rc2 Qd1 Ne7 Bf5 Rcd2 Bfc2 Re8 Ra3 Ba2 Bb8 Ba5 Rd3 b3 Bb2 Rd6 Be5 Rdd4 Bec7 Bc3 Qe5 Rf4 Rg3 Rdd4 Qe3 Rf3 Rg2 Rh3 Rg3 Rh2
3BRr2/Pb1q1Nn1/2RqN2r/3n4/1Q1Np1QR/1K2p1N1/N2q1q1b/1k1B3Q b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 d5 bxa5 h5 cxd5 Nc6 gxh5 Nb8 h4 Kd7 a4 Kd6 d4 c5 Kd2 e5 Kc2 b5 f4 g5 f5 b4 a6 e3 a7 g4 h6 g3 a5 g2 h5 Nc6 a6 Rh7 f6 Rc7 h7 Be7 h8Q Rd7 f7 Rb8 f8Q Qc7 a8R Nh6 a7 Qd8 Nc3 Nf5 h6 Ng7 h7 Bb7 Nge2 g1Q Ra6 Qf2 Na2 b3+ Kc3 b2 Kb3 Qc7 Rh4 b1Q+ Bb2 e4 Ng3 Qc1 Qg4 Qcd2 Be2 Qd8 Bd1 c4+ Ka4 c3 Kb3 c2 Bc3 c1Q Ba5 Qc8 Bd8 Rc7 Rb6 Qcf5 Ra6 Qc5 Rb6 Kd7 d6 Ke6 d7 Bd6 d5+ Ke5 Ra6 Ne7 Rc6 Rbc8 Rb8 Kd4 Ra8 Bf4 d6 Kd3 Rb8 Ne8 Qa1 Qce5 h8N Ng7 Nf7 Nd5 Qb1+ Kd4 Qh8 Qfe6 Qb2+ Kd3 Qa3 Qe8 Qb4 Q5e6 Bf6 Q6e7 d8N Q8d7 Ne6 Rf8 Nd4 Qe5 Re8 Rc8 Nge2 Bh2 Bd8 Qef6 Ng3 Rc7 Rc5 Rc6 Qh6 Ra6 Rc6 Qfe7 Rc7 Qc8 d7 Rd6 Rh5 Bg1 Rc6 Rg6 Ba5 Qd6 d8N Qcd7 Rh2 Rf6 Qhh3 Rg6 Qg2 Rh6 Rh4 Bh2 Qh1 Qde1 Nc3 Kd2 Bb6 Kc1 Na2+ Kb1 N8e6 Qed2 Bd8
qQBR2b1/p1P1pkN1/nb1BBn2/1N2r1R1/R4Q1K/4Rq2/4nR1n/1Qr5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 d5 g4 h5 f4 d3 Kf2 d4 Kg3 d2 b4 d3 b6 Rh6 g6 Nf6 b7 Qd7 g5 Qa4 c5 Qa5 g7 Rh8 g8R Qb6 b5 Nfd7 c6 Qd8 f6 Rh7 f5 Kf7 b6 Rh8 c7 Rh7 g6+ Ke8 g7 Ne5 Nc3 Kf7 Bh3 Be6 Nb5 Ng4 Ra4 Na6 b8R Nh2 b7 Ba2 Qe1 d1N Nf3 d2 Kh4 Nc3 Ba3 d1N Nfd4 Nf2 Ne6 Nfe4 Bd6 Ne2 Qb1 Rh6 Rc8 Rb8 Re1 Rg6 Bg4 Rg5 Bh3 Qe8 Rd8 Qc6 Bg4 Qc3 Bh3 Qf3 Bg4 N2g3 Re3 Ne2 Re8 Rd8 b8Q Rd7 Bh3 Rg1 Rd8 Rc1 Rh8 Bc4 Rh6 Bd5 Rg6 Ba2 Rg5 Bb3 Bc5 Rd5 Bb4 Re5 Bd6 N4c3 Bg2 Qa8 Bb7 Nd5 Bc8 Nf1 Kh3 h4 Kg4 h3 Kh5 h2 Kh4 Kg8 f7+ Kh7 Ba3 Nf6 g8B+ Kh8 Bc5 Bh6 f8R Bg7 Bd6 h1Q+ Rh3 Qhc6 Re3 Qf3 Rf7 Bh6 Ng7 Nh2 Rff8 Ba2 Bge6+ Kh7 Bed7 Bg8 Be6 Nfg4 f6+ Kh8 f7 Nf6 Rg3 Bf4 Rg6 Kh7 Rg5+ Kh8 Rb3 Be3 Rd3 Bb6 Re3 Qh1 Rfe8 Qhf3 f8Q Nfg4 Qf4 Nf6 Rf5 Kh7 Rf8 Kg6 Rg5+ Kh6 Bc5 Nd7 Qf7 Qf1 Qf4 Qfh1 Rff5 Nf6 Qg4 Qhb7 Rf2 Qf3 Rf5 Kh7 Bd6 Kh6 Qf4+ Kg6 Bed7 Kf7 Rg5 Ng1 Bh3 Ne2 Bhe6+
2nK1n1q/1N2rb1r/4q1pN/N1Q3BQ/p1QBr2n/P1qB2R1/7B/R2Bk3 b - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 d5 e4 dxe4 b4 g6 bxc5 Kd7 h5 Bg7 h6 Ke8 hxg7 Qa5 Nf3 Qb6 Ng1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 Kg5 Kd4 f4 a5 c4 b5 a3 e5+ f6 h5 c6 h4 c5 h3 f5 h2 c7 e3 c6 a4 Ne2+ Kd3 Ng3+ e2 Rg1 Qf8 f7 h1Q f6 b4 Nf5 b3 Nh6 b2 Rg3+ Kc4 d4 e4 d5 e3 d6 Ne7 g8Q Ra7 d7 Rb7 d8N Rh7 Nd2+ Kc3 Nb3 e1Q Qh5 b1R Na5 R1b3 Bd3 Ra7 Ndb7 Qe8 f8B e2 f7 Rb4 Kf6 Be6 c8B Re4 c7 Qd2 Bd7 e1N Bg7 Nc8 f8B Ng2 Bd6 Bf7 Bg4 Nh4 Bd1 Qb2 Be3 Qh3 Bd4+ Kd2 Bf4+ Ke1 Bg5 Qb4 Qf8 Qc3 Qc5 Qh8 Be5 Nd6 Ke7 Nd7 c8Q Nf8 Kd8 Qe6 Q8c6 Nc8 Qa6 Ra8 Qac4 Ra6 Bd6 Rc6 Bd4 Rc7 Rh3 Re7 Bh2 Re5 Rf3 Re4 Rg3
1nr5/1K1R2QQ/3rk2B/Bnb2Bp1/N3NnQ1/1pR1rQNr/1P2rQ2/4q3 b - - 0 1 illegal: No possible last move, all moves rejected
1BQ1n2N/rQr1N1Bp/Q4p1n/3R4/3B1PB1/rnR3r1/2Bkb3/1K3Nqr b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 Kd2 Kd7 Kc2 a5 b4 e5 g4 c5 f4 c4 g5 a4 g6 c3 b6 e4 b5 h3 g7 e3 b7 a3 b6 e2 Qd3 e1R Qa6 a2 Bd3 h2 Nh3 Nf6 g8B Ng4 Nd2 Qf6 Nf1 Ra7 Bb2 Qh4 Rd1 a1R Ng5 Ra5 Kb1 Re3 Bc2 Nc6 b8B Re4 b7 Nce5 Rg1 h1R Rg3 Qh2 Rf3 Kd8 d7 Ke7 d8N Nd7 d6+ Kf6 d5 Kf5 Nc6 Ndf6 d7 Qg1 d8B Nh6 d6 Ra3 d7 Ne8 Bb6 Kg4 d8Q Rc4 Ne7 Rc7 Bd4 f6 Nf7 Bd7 Qc8 Be6 Bc5 Bf5 Rd7 Bd3 Bd4 Be2 Rd3 Qe3 Rd5+ Kf3 Bc1 Bd1 Bd2 Ke2 Be1 Qg1 Bh4 Ng4 Bg5 Ke1 Bh6 Be2 Bg7 Nh6 Rf3 Bd3 Ne5 Be2 Be6 Rf8 Nf7 Rg8 Bh8 Rg3 Bg4 Rh4 Bg7 Rh1 Bg6 Kd1 Nh8 c2+ Kb2 c1N Kb1 Nb3 Bc2+ Ke1 Rc3 Rc6 Bd6 Rc4 b8Q Rcc7 Qbb6 Rc4 Bb8 Rcc7 Bg6 Kd1 Qbb7 Ke1 Bd3 Kd1 Bc2+ Ke1 Ne3 Kd2+ Nf1+
1brr4/N1B2BpK/Q3r1n1/B1r1N1R1/R5b1/2Npr1Pb/BkQ2R2/5Bq1 b - - 0 1 illegal: No possible last move, all moves rejected
5B1q/nKNQ3N/1pBpb2Q/1PQq4/R2Br1rk/r1N2rrB/2RB4/n7 b - - 0 1 illegal: No extended proof kernel
1Q5R/NKn3p1/n5nR/4q1P1/N1b4B/Q1nk1BQr/4NQp1/Qnr3Rq b - - 0 1 illegal: No proof kernel
3QN1k1/R1bn3p/1R2Q3/pbq3r1/1bBN1qr1/b2K3b/P2R1BRN/3RB3 b - - 0 1 illegal: No possible last move, all moves rejected
2Qr3N/1RN2r2/bQ2K1Bq/n1q1N1Np/1pB1k2P/8/n1rRN2B/1q3q1R b - - 0 1 illegal: No possible last move
2k2qB1/QRqpR3/3Pr3/1n2B1K1/2q1Nn2/2QN1BNq/1pB3n1/2Rb2Br b - - 0 1 legal: proof: h4 a5 e4 f5 exf5 g5 hxg5 Bg7 b4 axb4 c3 Bf8 Be2 b5 Rh2 b3 Bd3 b2 Qg4 b4 Rh1 b3 Qd1 Bg7 Bf1 Bd4 Qf3 Bc5 Qd1 Bb4 cxb4 Kf8 Ne2 Kf7 Ng1 Ke8 Ke2 c5 Kf3 e5 Kg4 h6 a4 e4 f4 e3 d4 e2 a5 e1N a6 c4 a7 c3 f6 c2 b5 Na6 g6 h5+ Kg5 h4 g4 h3 d5 h2 f5 Qb6 d6 Kd8 g7 Nc5 f7 Rh4 f8N Qc6 b6 Ng2 f6 Qb5 f7 Rh7 b7 Rh6 b8R Rh4 Bd3 Qb6 Nd2 b1Q Ne2 b2 Ng6 Na6 f8B Ne7 g8B Rh3 Re1 h1Q Ng3 Rh4 Ne5 Nd5 Bg7 Nc5 Rb7 Na6 Qf3 Qh3 Nde4 Ndf4 Bd5 Qd4 Be3 c1Q Bg1 Qdc4 Bc2 Nc7 Nd3 Nb5 Be5 Rh6 Re2 Re6 Re3 Rb8 a8Q Qf1 Qa7 Qbc1 Bd1 Q1c2 Rc1 Qc7 Bb3 Q2c4 Bbc2 Ra8 Re1 Rb8 Qfe3 Qf2 Bf3 Ra8 Qad4 Ra1 Qc3 Rb1 Qa7 Ra1 Rb6 Ba6 Rb7 Kc8 Kf5 Qh8 g5 Qe3 g6 Qf8+ Kg5 Rb1 g7 Ra1 Bg4 Rb1 Ne2 Qh3 g8B Ra1 Rb6 Bb7 N2g3 Bc6 Rb7 Bd5 Nec5 Bf3 Nce4 Bd1 Bf3 Q7c6 Be3 Rb1 Nd2 Qb6 Bg7 Be2 Rcd1 Rf6 Bf2 Qbc7 Bh8 Bf1 Re7 Re6 Nde4 Be2 Be5 Rc1 Rd2 Re1 Rd1 Rh1 Rc1 Bd1 Bg1
1BNB2q1/1q1nq1R1/BR1p1bnr/Q1rP2kN/1B6/7r/2QK2p1/R1B2Q1q b - - 0 1 legal: proof: g4 h5 a4 hxg4 b4 b5 c4 f5 e4 d6 exf5 Nd7 c5 Nb8 c6 Bb7 cxb7 Rh7 axb5 Nc6 b6 Nb8 b5 Rh8 f4 Kf7 d4 Kf6 h4 c5 d5 a5 h5 e5 h6 g5 h7 a4 Nc3 g3 Qc2 g2 Nh3 g1Q Kd2 a3 Na4 Qg4 Rg1 Nd7 b8Q c4 b7 a2 b6 e4 Qc7 Be7 b8R Qc8 b7 Qg2+ Be2 g4 Qa5 g3 Nb6 Qc7 Nc8 c3+ Ke3 Qh1 Ba6 Qd8 Ke2 e3 Kd1 e2+ Ke1 Kg7 f6+ Kh6 f7 Bf6 f8B+ Kh5 f5 Ne7 Bfh6 Ng6 Bhg5 Qg8 Nf4+ Kg4 Nh5 Ra7 Rb1 a1Q Rb6 Qa4 Ra8 Qb3 b8B Rc7 Ra7 g2 Rab7 Rc5 Rf1 Bd4 f6 Be5 f7 Bf6 f8Q Qb1 Qb3 c2 Kd2 e1R Ra7 Re3 Rd1 Rh3 Qc4+ Bd4 Qff1 Qb3 Qcc3 Bf6 Re1 Qb5 Re7 Qc6 Rg7 Qb7 Qcd3 Bd4 Bd8 Bf6 Ba3 Kg5 Bb4 Qf7 Ra8 Qe7 Qe4 Rg8 h8B c1Q+ Ke2 Qa3 Kd2 Qg3 Qc2 Qg4 Rh7 Qge6 Bg7 Rh8 Bh6+ Kh4 Rg7 Qg8 Kd1 Kg4 Bc1 Rh6 Kd2 Kg5 Ra7 Qc6 Rc7 Qb7 Rcc6 Rb5 Rc3 Rc5 Ra3 Rh8 Ra4 Rh6 Ra1
B1N1Q1q1/2p1n2b/2P2QRB/1Bn5/2Q1Bq1k/b1R3NB/rnpb1b2/3N1K2 b - - 0 1 illegal: No proof kernel
2B2nqk/4q3/2p1N2q/n1B2N1N/3Q1b2/pN1R2B1/Prn2Q1n/1r1QR1KN b - - 0 1 legal: proof: d4 g5 g4 b5 f4 e5 fxg5 Bh6 dxe5 Bg7 h4 Bf8 c4 bxc4 h5 Bb7 Rh3 Be4 Rh1 Bg6 hxg6 Bd6 Rh6 Bc5 Rh1 Bf8 Kf2 d5 b4 f5 e4 h5 b5 a5 g7 Kf7 e6+ Kg6 b6 Kh7 b7 d4 e7 h4 e8Q f4 e5 d3 g6+ Kh6 e6 d2 e7 a4 Nh3 a3 Qea4 c3 e8N c2 Ba6 f3 Re1 Nf6 g8Q Nfd7 g7 Qe7 Qf7 Kh7 g5 Nc6 b8B Na5 Bc8 c6 Bg3 Rb8 Qd4 Rb2 g8N+ Bg7 Kf1 f2 Nc7 Nf8 Nh6 Rg8 g6+ Kh8 Qff4 Be5 Ne6 Rg7 Kg2 f1N Nf2 h3+ Kg1 Nh2 Nh1 Bd6 Qff2 Bf4 Qe4 Rh7 Nf5 Rf7 Qed4+ Rg7 Qg4 d1N Be3 c1Q Nd2 Qc4 Nb3 Qd5 Rc1 Qc4 Rc3 Rb1 Ng5 Qg8 Ne6 Rb2 Rd3 Rb1 Bc1 Ne3 Qd1 Nc2 Be3 Rb2 Qd6 Rf7 Bc5 Rf6 Qdd4 Rb1 Nfg7 Rf5 Nh5+ Re5 Qc4 Re2 g7+ Kh7 Rf3 Ne3 Qd7 Qgf7 g8N Kh8 Nhf6 Nhg4 Nh6 Reb2 Qd1 Nc2 Qcd4 Qg8 Rd3 h2+ Kg2 Qd7 Nf5 Qd8 Qff3 Qe7 Nf2 Qc7 Kf1 Qe7 Qg2 h1Q+ Qg1 Qh6 Nh5+ Qeg7 Nh1 Nh2+ Kg2 Qgf6 Qgf2 Qfg7 Kg1 Qe5 Neg7 Qe7 Ne6+
2B3rn/n2BBRkn/K7/2R1r2p/3B2np/1Q2QqN1/2NR2rP/B1Q1q1b1 b - - 0 1 illegal: No proof kernel
1b1Q3q/2nr3r/pBQ5/n1p2k1r/Pr1R4/RNB2R2/QBNKnq2/3B1B2 b - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 g5 c4 bxc4 h3 f5 Na3 Bb7 Nb1 Bf3 gxf5 g4 Qc2 g3 Qd1 Bg4 hxg4 Ke7 Qd6+ Kf7 Qd1 Ke8 a4 Kf7 f4 c5 b4 h5 e4 d5 f6 Ke6 f5+ Kf7 e6+ Ke8 f7+ Ke7 b5 Kf6 b6 a6 e7 g2 e8Q c3 e5+ Kg7 f6+ Kg6 e6 c2 e7 d4 b7 d3 g5 h4 Bb2 c1N Kd2 h3 Nf3 g1R Na3 h2 Qc6 Rh4 e8B Qd6 Nd4 Qg3 Nb3 Bd6 f8R+ Kf5 g6 Rb4 g7 Ne2 f7 Qf2 Nc2 Rg5 Ra3 Ne7 g8Q Rh5 Qb1 Ra7 Qa2 Be5 Rg1 h1R Rg4 Nd5 Rd4 Nc7 Qh8 Rh7 Qg8 R1h5 Bc3 Nd7 b8B Nb6 Qh8 Rb7 Ba7 Bd6 Rg8 Be5 f8B Bd6 Bg7 Nc4+ Kd1 d2 Bb6 Na5 Rf8+ Kg5 Rf3 Bf4 Bf7 Kf5 Qd8 Ra7 Ne1 Rb7 Kc2 Ra7 Kd3 Rb7 Nc2 d1Q+ Bd2 Qa1 Bc3 Nb5 Bf6 Rd7 Bb2 Nc7 Bc4 Ng3 Be2 Qh1 Bd1 Qh4 Kc3 Qhh2 Bf1 Ne2+ Kd3 Qh3 Rd6 Qhh4 Bfc3 Qf6 Rd4 Qh8 Rg3 Bd6 Rf3+ Ke6 Qa1 Ne8 Re3+ Kf5 Kd2 Bb8 Qa2 Nc7 Rf3+
3qn3/BK2NpB1/N1Bprq2/2B1Q1nQ/1R3q2/r3bP1n/2kN1nR1/Q6B b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 h4 e5 d6 e6 c5 d4 cxd4 g3 Bd7 gxh4 Qc8 h5 Kd8 Qf3 Kc7 Qd1 Qd8 Nd2 Kb6 exd7 Kc5 Nb1 Kd5 Kd2 Ke5 Ke1 Ke6 Kd2 Kd5 Kd3 a5 c4+ Kc5 Ke4 Kb4 Kd5 g5 h4 e5 c5 d3 c6 a4 b6 d2 f3 g4 c7 g3 c8B a3 h6 e4 h7 a2 h5 e3 h6 g2 b7 e2 Rh4+ Kb5 b4 Ra4 Bb2 Na6 b8B Qa5 d8B Qb6 Nh3 g1Q Nf4 Qg6 Bg2 e1Q Bh1 Qeg3 Bb7 Ra3 Ba7 Qf6 Ng6 Nc5 Ne7 Ne4 Bc3 Qa5 Bdb6 Ng5 Bc5 Qd8 Qg1 Ka4 Kc6 Kb3 b5 d1N b6 Nh3 Rb4+ Kc2 Nd2 Qgg5 Qf1 Qff4 Bg7 Nf6 Qa6 Rg8 h8Q Ndf2 h7 Ne8 Rg1 a1N Rg2 Nb3 Ba8 Qg6 b7 Qgf6 b8N Nd4+ Kb7 Ne6 Qa5 Neg5 Na6 Re3 Qa1 Ra3 Bh6 Rg6 Qg7 Q6f5 h8Q Re6 Qge5 Qg6 Bg7 Qgf6 Ng8 Be7 Qh5 Bf8 Bh8 Bg7 Ne7 Bh6 Bg7 Nh7 Nf1 Qc4 Kc6 Be3 Nd2 N7g5 Bb7 Qcf4 Ba8 Qd7+ Kb6 Qc8 Bc6 Qd8+ Kb7
3nb2k/1r3rb1/1b1BNrp1/2R5/B4Nrn/1B1B1N1p/RRQ3PK/2B1Qr2 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf8 h6 Qd6 Nf3 Qe5 Ng1 Qg7 hxg7 Be6 Qa4 Bg4 Qd1 Bc8 Kf2 f5 d4 Kf7 b4 a5 e4 c5 d6 h5 d5 h4 b6 h3 e5 a4 b5 a3 b7 a2 d7 c4 d8Q c3 d6 f3 Kg3 c2 b6 f4+ Kh2 f2 d7 f3 Qe1 Ra4 Be2 f1R Nc3 f2 Nf3 Rh7 Qc7 Bc5 Bd3 Ne7 g8B+ Kg7 d8N Nc6 b8B Rg4 e6 Kh8 b7 Bb6 Nd5 Rf7 Nf4 Nf5 e7 Bd7 e8B Nh4 Nde6 Nd8 Qc6 Rf6 Bd6 Rf7 b8R Rf6 Bca3 c1R Qc2 Rb1 Bc1 Rb2 Rc8 Ba4 Rb1 a1B Rc5 Rb4 Rb2 Rf7 Ra2 Bg7 Bc6 Rb1 Ba8 Be8 Bc6 Ba5 Ba4 Rbb7 Ned4 Rf6 Bgb3 Bb6 Rb2 Rg1 Nde6 f1R Ra2 Rf2 Qed2 Rd1 Re1 Rf1 Re2 Rde1 Rf2 Re5 Qe1 Ref5 Qb1 Rff7 Rfb2 R5f6 Qc2
2RKn1Nr/1QN1p1Bb/4P1B1/7n/pBn1R3/n2QN2r/3r1q1N/1QN2rk1 b - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 cxd5 Bh6 axb5 fxg4 Rh3 g3 Rh2 g4 Rh1 Bg5 hxg5 Be6 Na3 Bf5 Nb1 Bc8 e4 Kf7 Ke2 Kg6 Kd3 h5 Kd4 c5+ Ke5 a5 d4 c4 b4 h4 f4 Kh5 g6 c3 d6 h3 f5 Kh4 g7 c2 d7 a4 Ke6 g2 e5 Kg3 b6 Kf2 d5 g3 b7 h2 b5 Rh6+ f6 Qe8 b6 Qd8 d6 Ra6 Qd3 Rh7 f7 Qc7 f8B Rh5 Ba3 c1N Nd2 Qd8 Ne2 g1R Bb4 g2 Nf3 Nh6 g8N Rh3 Bg7 Na2 Nc1 Nc6 b8Q Nf5 b7 Qf8 Qb1 Nh6 Bd3 Na5 Bg6 Rd1 Re1 g1R Re4 h1N Nh2 Nf5 Qc7 Ra7 b8N Nhg3 Nc6 Nc4 Na5 Nh5 Qb7 Nc3 Ra2+ Rd2 Rc2 Nb5 Rc3 Nb2 Nc4 Ra8 Ne3 Rf1 Rcc4 Kg1 Rc6 Qd8 Kf7 Qc7 Ke8 Qb6 d8N Nc4 d7 Nba3 Ne6 Rb8 Nc7 Nfd6+ Kd8 Ne8 Nf5 Qf2 e6 Ra8 Qb8 Ba6 Ne3 Ra7 Qb7 Bb5 Ncd5 Ra8+ Rc8 Bc6 Nc7 Bd5 Rh4 Be4 Rf4 Bf5 Re4 Rb8 Bf7 Bh7 Bg6 Ra8 Rb8 Rd3 Kc8 Qg2 d8Q Rd2 Qdd3 Qf2 Nh6 Ned6+ Kd7 Ra5 Rf8 Rf5 Rc8 Ne8 Kd8 Rf8 Bf7 Rg8 Bg6 Rh8 Ng8
1rN1Nbn1/1NRN3b/3p2bN/3k2KQ/1qrp4/rBBP4/QBR2r2/3bR3 b - - 0 1 illegal: No proof kernel
1Rq2kN1/2rb1n2/QNp1NBr1/pnP3rN/2K5/Rr1RN3/B1Q2n2/B6n b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Be7 h4 fxg4 Ra6 g3 Ra5 g4 Ra1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 h5 Kc3 d5 b4 a5 e4 d4+ Kc4 d3 f4 c6 b6 g2 b7 h4 b5 d2 e6 g3 g6 h3 e5 h2 g7 Nf6 g8N Rh3 e7 Ne4 b6 Ng5 f5 Ra7 f6 Ne6 f7+ Kd7 f8B Ke8 Bg7 Ra6 Bb2 Nd7 b8R Nf4 b7 Qc7 Ra3 Nf8 Nc3 Nd5 Nge2 g1R Nf4 g2 Ba1 Kf7 e8N Rh6 Nef6 Ng6 Ne6 Qd7 Nh5 Ra8 Bf6 Nc7 Nd5 Rh7 Ne3 Nb5 c3 Ra6 Qc2 d1N Bd3 Ra8 Be4 Nf2 Bd5 Rb1 Rd1 g1R Rd3 h1N Nd8+ Kf8 e6 Rg5 e7+ Ke8 Ne6 Kf7 e8N Nh8 N8c7 Ra7 Na8 Rhg7 Nb6 R7g6 Kc5 Rb3 c4 Nd6 Kd4 Qd8 c5 Nb5+ Kc4 Bd7 Ra8 Ke8 b8Q Rc7 Qc8 Nf7 Qa6 Qc8 Rb8 Rb1 Rd1 Ne4 Kd3 Rb2 Bb3 Nef2+ Kc4 Rb1 Ba2 Rb3 Nd4 Kf8 Rd2 Rd5 Rd3 Rdg5 Ne6+
3R4/3b4/nr1Q1nB1/rkBpp2b/RPB5/K1b1N1p1/Nr1NBR2/1QB4q b - - 0 1 illegal: No possible last move, all moves rejected
RQ5N/B2n3r/1bQ1N2p/q2NRbn1/1n1k2BN/1p2rrB1/2p2P1K/4NR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 d4 c5 g4 e5 g6+ Kf6 d6 b5 a5 e4 g7 e3 d5 Ke5 f6 b3 a6 h6 d7 b2 a7 c4 g5 b4 f7 b3 g6 c3 d6 c2 Ra5+ Ke4 Nf3 e2 Nbd2+ Kd3 Re5 b1N Bh3 Nc3 Rf1 Nc6 Nh4 Nce7 Bg4 Rh7 Ndf3+ Kc4 Bf4 Nc6 Qd5+ Kb4 Bg3 Rb8 a8R Qe8 d8B Ne4 d7 Kc3 Bb6 Rb7 d8N Rd7 Ne6 Rb7 Ba7 Bc5 f8N Nb4 Qc6 Ngf6 g8Q Nd7 g7 Qd8 Nfg6 Qa5 Nh8 Ng5 Qf8 Kd3 g8N Bb6 Nf6 Rc7 Nd5 Rf7 Qb7 Rc3 Qb8 Rh7 Qf6 Kc4 Kd2 e1R Qg6 Ree3 Ne1 Red3+ Ke2 Rf3 Qe8 Nc5 Qc6 Rcd3 Rg1 Rde3+ Kf1 Bd7 Kg2 Bc8 Nec7 Kd4 Kh2 Bf5 Rf1 Nd7 Ne6+
3B1nB1/4b3/R2Rp1RQ/kpb1Npn1/1q1R3Q/4K2Q/P2n1Rr1/Nr3N1b b - - 0 1 illegal: No proof kernel
B4QKn/Qb3r1p/nQ1Q4/Nr1p1R1B/1k6/R1p1RQ2/1B2n2P/4qrNb b - - 0 1 illegal: No possible last move, all moves rejected
n4nK1/Qb1QQr1p/1r1p1R2/4qR1B/N1Q2p1P/4NQ1B/3n1k1r/Bb5R b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 fxe5 Be7 d4 cxd4 g5 Bf6 gxf6 Qb6 Ra5 Qc7 Ra1 Qd8 Kd2 Kf7 Kd3 Kg6 Kc4 Kh5 Kd5 Kg4 b4 g5 c4 a5 e4+ Kh4 e6 d3 f7 d6 f8Q d2 b6 f4 e5 a4 c5 a3 b7 g4 e7 g3 e8Q a2 e6 g2 b5 Qc7 e7 Na6 b8Q Bb7+ Ke6 Nf6 Kf7 Qd8 c6 Qb6 c7 Ng8 c8Q Qc5 b6 Qf2 Qc4 Ra7 Qf3 d1B Na3 Qb2 Nc2 Qe5 Ne3 Nc7 Qd7 Na8 e8B Bb3 Qfe7+ Nf6 Bb2 Bc2 Ne2 g1R Bh3 Rg2 Nc3 Bb1 Na4 Ra6 Qa7 Rhg8 Bg4 Rf8+ Kg7 Rd2 Beh5 Rf7+ Kh8 Rf2 h3 Rh2 Bd4 B7e4 b7 Rb6 b8R Bd5 Rf8 Bb7 Qe4 Kg3 h4 Kf2 Bh3 Nd5+ Kg8 Ndc7 Qec6 Ne6 Q6d5 Bf5 Rag1 a1N Rg6 Nb3 Ba1 Nd2 Rf6 Bc2 Rc8 Bd3 Rc5 Nf8 Rb5 Bb1 Qde4 Qb2 Rbf5 Qe5 Qf3+
2BR3B/1B1Np1r1/1b4pp/P4N2/N1qn1Q1B/Bn1n1Q1r/1Rb5/3krRK1 b - - 0 1 illegal: No proof kernel
1bkNrBB1/4pqp1/2RnQpb1/8/2NQBR1P/7Q/1Nn1n2Q/2QrbK2 b - - 0 1 illegal: No possible last move
Q1Q3K1/3p1Nn1/2Q1Brpr/r2n1N2/1n1kPBRN/2q5/bB1p1bB1/1RB5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 c4 a4 h4 a3 b4 g6 h6 f6 h5 a2 c5 d3 c6 d2 h7 Ba6 c7 Qe7 c8Q Qc5 h6 Ra7 b6 Bb5 b7 Ra6 Qa4 Qf2 Bg2 Qf1 Na3 Bc5 Nf3 Ba7 Rg1 Ra5 Nc4 Ra6 Rb1 a1N Ne3 Bc5 Nh4 Nc2 Nef5 Bc4 b5 Ne1 b6 Nc6 b8B Nf3 b7 Nfd4 e3 Nb4 Qac6+ Bd6 Bc7 Ba2 b8Q Ne7 Qba8 Qc4 Kf4 Qc3 e4 Ra5 Bb8 Rf8 h8N Ned5+ Kg4 Re8 h7 Rf8 Nf7 Rh8 Ne3 f5+ Kg5 f4 Kh6 f3 Kg7 f2 Nef5 f1R Bc7 Re8 h8B Re7 Kg8 Rf2 N7h6 Rh7 Nf7 Rh5 Bh1 Rh6 Rg4 Rf4 Bg2 Rf3 Ne3 Nf5 Bb8 Ke7 e6 Ng7 Nef5+ Kf6 e7 Rf4 e8B Rf1 Nd8 Ke5 Bf7 Rf2 Be6 Rf3 Ne7 Kd4 Nf7 Bg3 Bf4 Bf2 Nef5+ Kd3 Qd8 Ne8 Ne3 Qb3 Bhb2 Ng7 Qdc8 Qc3 Bb8 Rf6 Bf4 Kd4 Nef5+
b4Q2/Np4KN/1b1QN1R1/1B1p1BR1/1RPNnNrb/8/q2kpn2/n3B1r1 b - - 0 1 illegal: Other
1nBNNbq1/1p3BQr/3ppB1n/kn4K1/4BB2/r1R2b1b/Q2P1RQR/8 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 b4 axb4 h4 d6 hxg5 Nh6 c5 Ng8 c6 Qd7 cxd7+ Kf7 Ke2 c5 Kf3 h5 Kf4 h4 d8B Ke8 a4 Kd7 g4 Kc6 a5 c4 f6 Kb5 g6 b3 a6 b2 a7 h3 f7 h2 g7 Rh3 g5 Re3 g6 Bg4 Bg2 c3 Nf3 c2 Na3+ Ka4 Qe2 b1B Ne5 Rd3 Nb5+ Kb4 Ra3 Nd7 Be4 Nb8 Nc6+ Kc5 Kg5 Ba2 f4 Bd5 f5 Rh3 f6 Rh4 Qg2 Nd7 Rc3+ Bc4 Bb2 c1Q Nc7 Kb6 Ne8+ Kb5 Bb6 Bce2 Be3 Nc5 Nd8 Rh7 Bf4 Nh6 g8B Na6 g7 Bef3 Ba1 Ka5 Bb2 Rb8 a8Q Bh3 Qa7 Ra8 Ba1 Kb4 Bb2 Nb8 Qa2 Ra3 Ba1 Rh8 Bgh7 Qc2 g8B Qb3 Bhf5 Rh7 Bc8 Ka5 Bb2 Nf5 Ba1 Nd4 Bb2 Nb5 Ba1 Bg7 f8Q e6 Qf7 Bf8 Qg7 Qb4 f7 Qb2 Re1 h1N Re2 Ng3 Rf2 Qb1 Re2 Qg1 Bb2 Nh5 Ba1 Nf6 Rf2 Be7 f8R Ng4+ Rf6 Bf8 Rh6 Rh8 Rh4 Nh6 Bf7 Rh7 Rb3 Qc1 Bf6 Qc4 Rc3 Qc7 Bfg6 Qf7 Rh5 Qg8 Bf7 Bf5 Rh1 Bh3 Rh2
4B3/p3BnQB/1R1nK3/3rBB1R/r1p1N1qk/p2NnbN1/1r1P2Q1/R5b1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Bd7 hxg5 Bc8 Ke2 Kf7 Ke3 c5 Ke4 e5 f4 h5 b4 a3 g4 h4 d6 h3 Kd5 h2 f6 Kg6 f7 c4 d7 e4 f5+ Kg7 f6+ Kg6 b5 e3 b6 e2 b7 e1N Qe2 Qc7 d8B Nd3 Bb2 Rh5 Nc3 Rh7 Bh3 Ne5 Ne4 Bd6 f8Q Be7 f7 Bb4 Be7 Na6 b8R Bd7 Qf3 Qb6 Ne2 Rh4 Rhg1 h1R Rg3 Qc7 Qg2 Rb1 Rb5 Nh6 Rb6+ Bd6 Qh8 Be8 Ke6 Rd8 Bd4 Nf5 Qf6+ Kh7 g6+ Kh6 f8N Bc5 g5+ Kh5 g7 Rb2 g8B Nb4 g6 Nd5 g7 Rf4 Bc3 Bg1 Rg5+ Kh4 N2g3 Nde3 Bh7 Bh5 g8B Bf3 Bf7 Rd3 Be8 Nf7 Nd7 Rd4 Qg7 Qc8 Kf6 Rd3 Ne5 N5d6+ Rf5 Rd4 Nd3 Rg4 Ra5 Rg5 Bhd7 Rgb5 Be6 R5b4 Rg5 Rd5 Bh3 Qg4 Be5 Qf4+ Ke6 Ra4 B3f5 Qg4 Rh5#
nNQbB3/p5NN/1B3r1B/2pNkb1n/5Q1K/1QN4R/Pn3p1q/1R2r2r b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 fxe5 d6 c4 Qf6 b4 Ne7 bxc5 Ng8 c6 Qd8 c5 dxc5 Kf2 Ke7 Kg3 Ke6 e4 f5 d4 g5 h4 b5 d5+ Ke7 h6 b4 h7 g4 d6+ Ke6 d7 b3 c7 b2 h5 Ne7 h6 f4+ Kh4 g3 Nf3 g2 Bb5 g1N Nc3 b1R Qb3+ Nd5+ Ng5+ Ke7 e6 Kd6 e7 f3 e8N+ Ke5 Rh3 f2 Nf6 Ba6 c8N Qa5 d8B Ne3 Bb6 Bb7 Be8 Nd7 Nfd5 Nc4 Nce7 Nb2 Be3 Re1 Rb1 Bc8 Nc6+ Kd6 Bd2 Ne2 Nb8 Be7 Bc1 Rf8 h8Q Rf6 h7 Ng3 Qf8 Ke5 h8Q Bd8 Nh7 Nh5 Bh6 Qb5 Qhg8 Qf1 Qg4 Qg1 Qf3 Qh2 Qf4+ Ke6 e5 Rh1 Qc1 Kf5 e6 Ke5 e7 Re1 Ba5 Nb6 Qh8 Bf5 Qf4+ Ke6 Nc6 Rc8 Nb8 Na8 Bb6 Rh1 Ba4 Rc7 e8N Rg7 Qf8 Rgg1 Bb5 Re1 Qh8 Re5 Ng7+ Kd6 Qf3 Re3 Be8 Ree1 Qg8 Ke5 Qe6+ Kd4 Qc8 Ke5 Qf4+
qRq1B1R1/1B2b3/R4n2/2Rq4/1B1bn1pK/2p1Nkp1/R1Pr1Q2/1Q1N1Qr1 b - - 0 1 illegal: No possible last move, all moves rejected
rNQ2R1B/1KNBnq1B/1n1b4/4Q1p1/3P4/1R1RpN1r/2bNkp2/1q1Nn3 b - - 0 1 illegal: No proof kernel
6n1/1N1k4/2NrQ1q1/BN3p2/Q1p1Br1P/1RNN3R/3n1bp1/K2BrbRq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 f5 d4 c5 Kd2 g5 Kc2 c4 Kb2 g4 e4 a4 b6 f3 d6 g3 b7 g2 b5 f2 h6 Ra7 e5 Rh7 d5 Ra6 b6 Qe7 d7+ Kd8 e6 Qf6+ Nc3 Rh8 h7 Qg6 Bd3 f1R Nb5 Rf3 Be4 Nf6 Ne2 Ra3 Rh3 Ng4 Nec3 Be7 Bd2 Rg8 h8Q Nh6 Qe5 Nc6 b8N Bf8 b7 Na5 Rc1 Rb3+ Ka1 Rd6 Na6 a3 b8R a2 Nb4 Rb2 Be1 Rf2 Qa4 Rf4 Nd3 Rg7 Bd2 Ng8 Rg1 Re7 Rb7 Re8 Rb6 Ke7 d8N Bb7 Be1 Ba8 Nb7 Bg7 Bf3 Bf8 Bd1 Bg7 Qe2 Bd4 Bd2 Bf2 Be1 Red8 Qe3 Ke8 e7 Kd7 Qe5 Re6 d6 Re8 Bd2 Rd8 Qf6 Re1 e8B+ Kc8 Bf7 Kd7 Bd5 Nb3+ Kb2 Bg3 Be4 Bf2 Be3 Nd2 Ka1 Re8 Bc5 Re5 Bb4 Rd5 Nd8 Bc6 Ba5 Bb7 Nc7+ Bc6 Rb3 Rd4 N7b5 Bb7 Bf3 Be4 Nc6 Rd5 Nb2 Bd3 Be4 Bf1 Nd3 Qg3 Qf8 Qg6 Qh6 Ke6 d7 Rd6 d8N+ Kd7 Kb2 Rg4 Qe3 Rf4 Nb7 a1Q+ Kc2 Qa3 Qe2 Qc5 Kb2 Qe3 Ka1 Qeg3 Qg4 Qh2 Qh5 Qh1 Qh6 Qg7 Qf6 Qg6 Qe6+
nQ1br2R/Bq1RN3/2n3K1/3NpB2/4b3/p2N3P/r1RRqp2/1R1bkB1Q b - - 0 1 illegal: No proof kernel
3B2N1/1B1BQ1B1/1qqR3n/3pNppb/Q1r2P2/q1nr3R/1k4KR/b2BQ3 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 f4 Ke7 Kf2 Ke6 c4 d5 e4 a5 h4 g5 h5 f5 c6 a4 b6 g3+ Kg2 a3 b7 a2 c7 Bd7 c8B Qa5 h6 Qa3 c5 Qd3 c6 Qb3 h7 Bh6 c7 Qc2+ Nd2 Ra7 Rh2 Qc6 Bb2 Ra6 Ngf3 Rb6 Qa4 Bf8 Be2 Bg7 Bd1 Na6 b8B Bf6 Bb7 Nb4 c8B Bg7 Bc7 Nh6 Bd8 Rf8 Rc1 a1Q h8R Qa3 Rc2 Na2 Rh7 Ng4 R7h3 Rb3 Rc4 Nc3 Rc5 Qd6 Rc6 Nh6 Ra6 Qc6 Ba1 Kf7 e6+ Ke8 e7 Kf7 e5 Ke6 Kg1 g2 Ne4 Re8 Rb6 Rb4 Nf6 Rc4 Kf2 Rh8 Ng8 Bf6 Nh4 g1Q+ Kf3 Rh7 e8Q+ Re7 Ra6 Qgb6 Ng6 Bg7 Kg2 Bh8 Ba8 Bf6 Bcb7 Bg7 Qf8 Be8 Bb2 Kd7 e6+ Kd6 Ne5 Kc5 Qf6 Rc7 e7 Bh5 e8Q Kd4 Bc8 Re7 Bd7 Re6 Qfe7 Bh8 Nf7 Re3 Bb7 Kd3 Ba1 Kd2 Ne5 Kc1 Qeb4 Rd3 Qee7 Ne4 Qe1 Kb1 Bd4 Nc3 Nf3 Ka2 Bg7 Kb2 Ne5 Qf6 Qe8 Ka2 Nf7 Qc7 Ne5 Nb1 Nf7 Qg6 Bf8 Ba1 Q8e4 Nc3 Qe7 Kb2 Bg7 Qa5 Re6 Qb6 Rc6 Qgd6 Ne5 Qdc5 Rf6 Qcc6 Rd6
B7/3RQ2b/R4Qrn/q1p3rn/BPKpQ1pb/BN6/Bq2NBk1/4R1r1 b - - 0 1 illegal: No possible last move, all moves rejected
1KQ4B/3b2Q1/3B4/p2r2bq/2RQ1qn1/1k1N3N/ppB1Qr1P/RQ3nqN b - - 0 1 illegal: Other
N3nRN1/q4R1Q/1Br2QK1/pRn1b3/rB3q1N/2q1p2b/P3pQ1N/N1k5 b - - 0 1 legal: proof: e4 c5 g4 d5 exd5 h5 gxh5 f5 b4 Be6 bxc5 Bd7 Bd3 Bc8 Be4 fxe4 Ke2 Kf7 Ke3 Kf6 Kf4 a5 h4 b5 c4 e3 d4 b4 h6 g6 h5 b3 d6 e2 d5 b2 h7 e6 h6 Ba6 c6 Bc8 d7 Bb4 d6 Qf8 d8B+ Ne7 d7 Rg8 h8Q+ Rg7 c7 Be1 c5 Ra6 c6 Ra7 h7 Qf7 Nd2 b1Q Ngf3 Ra8 Nb3 Ra7 Ba3 Qf8 Rf1 Na6 Nh2 Qd3 Rb1 Bc3 Na1 g5+ Kg4 Ke5 Kh5 Ke4 f4 Ke3 f5 g4 f6 g3 f7 e5 Rb5 g2 Qe1 Rg3 Bb4 g1Q Qg7 e4 h8N Qd2 Ng6 Ng8 Nh4 Nf6+ Kh6 Qh8+ Qh7 Ne8 f8R Qd6+ R1f6 Qf4+ Kh5 Qgf2 R6f7 Qd4 Qf1 Kd2 Qg1 Rd3 Kg6 e3 Qg2 Qe1 Qf1 Kc1 Qf2 Bb7 c8N Rd2 c7 Bg2 Bd6 Bh3 Ne7 Qc5 c8N Rc7 Nb6 Rd4 Na8 Rc6 Bc7 Ra4 d8Q Qa7 Ng8 Be5 Qf6 Qc3 Bb4 Nc5 Bb6
R3B3/3r4/BrQ5/p2bkr2/N1b3Q1/BpnpRQ1B/2qPBR2/K1Nnq3 b - - 0 1 illegal: No possible last move
R1Nq1n2/2R4b/2K2n2/p1BBp1R1/1r2Prp1/N2k1BB1/bQq1rBQ1/1N6 b - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 cxd5 Bh6 axb5 fxg4 Rh3 g3 Rh2 g4 Rh1 Bg5 hxg5 Be6 Na3 Bf5 Nb1 Bc8 e4 Kf7 Ke2 Kg6 Kd3 c5 Kc4 h5 f4 a5 b4 h4 d4 g2 b6 e6 Kb5 h3 f5+ Kh7 f6 Kg6 f7 c4 f8B c3 b7 h2 d6 c2 d7 Rh5 d5 Na6 b8Q Nf6 d6 Rh3 Qd2 Nh7 Be2 Nc5 Kc6 Rh4 b5 Rh5 b6 Rh6 b7 Na6 Bf3 Rh3 Ne2 g1R Nec3 Re1 Na3 Nc5 Qg2 Re2 Ncb1 Nf6 Be3 c1Q Bf2 Qc2 Be7 Kh5 g6 Kg5 g7 Kf4 g8B e5 Bd5 Ra7 Bg3+ Ke3 Ra2 Qc1 Rc2 Ne6 Rf1 h1B Bf8 Qe7 d8B Kd3 Bb6 Qd8 d7 Ra6 Bc5 Nf8 Rc4 Qc2 Bcf2 Ra8 Bbc5 Rh7 Qc7 Rb8 Qb6 Rf7 Qb2 Qe7 d8R Bf5 Re8 Bh7 Rc8 Qd8 Rc7 Ra8 b8N Ra7 Rb4 Rb7 Nd7 Rb8 Rc4 Rb5 Nb6 Rb4 Qh3 Bg2 Nc8 Ne8 Ra7 Rf4 Ra8 Nf6 Rh1 Bf1 Qg2 Rb7 Rh2 Rb4 Rh5 Re1 Be7 Re3 Rc3+ Kd4 Rg5 Bc4 Bd6 Bb3 Rc4+ Kd3 Kc5 Re2 Be7 N8d7+ Kd6 Ba2 Rc7 Qd1 Kc6 Nf8 Bd6 Qc2+ Bdc5
r3n1K1/k4N1Q/B3B1p1/2R2b2/2Q1q1r1/p1nRqN1N/P3NBp1/R4nbN b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 h5 b4 d5 cxd5 Nd7 bxc5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kc7 Kf4 a5 Ke5 b5 f4 Kb7 d4 e6 h4 g3 d6 b4 d5 g6 c6+ Kb6 d7 b3 f6 b2 f5 g2 f7 a4 h5 a3 f6 Bb4 f8N Ra7 f7 Bd2 h6 Qc7+ d6 Bc3+ Qd4+ Ka5 d8N Qe7 d7 Qh4 h7 Rc7 Ne2 Ka6 Be3 Bd2 Bf2 Bb7 Nbc3 b1N Nd1 Qg4 Rh5 Ne7 Kf6 e5 Kg7 e4 Rc5 e3 Nfe6 Qe4 f8N Nd5 Nf7 Nbc3 d8R Ka7 Qc4 Nd7 N6f4 Bc8 Nh3 N7f6 Nd7 Rf8 h8Q Ne8+ Kh7 Rb7 c7 Rb4 Nde5 Bf5 c8B Ra4 Nd4 e2 Be6 e1Q Ne2 Be3 Nf3 Bd4 Rd6 Ne3 Rdd5 Bg7 Rd3 Bd4 Ng3 Qe2 Nh1 Qd2 Be2 Nf1 Qg7 Qde3 Qh8 Nf6+ Kg7 Ra8 Qh7 Ne8+ Kg8 Qh6 Bh4 Bg1 Bf2 Nb5 Nc3 Qhe3 Bd1 Rb4 Ne2 Nc3 Ba4 Qd5 Bb5 Qc6 Qb3 Rg4 Ba6 Qce4 Qc4
1k3qn1/4Q2K/1QQ3pb/1rbpN3/PB1q1Np1/r1N2R2/BBbRB3/2n4B b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Ke2 b5 Kd3 e5 Ke4 d6 c4 Kd7 h4 Kc7 f4 b4 a4 b3 a6 b2 h5 Qg5 c6 Nh6 c5 Rh7 f6 Ng8 f5 Bb7 f7 Qh4 a7 Be7 f8B Nd7 f6 Qh2 Kf5 e4 Kg6 e3 f7 e2 h6 e1B Qd4 Rd8 a8B Rh8 h7 Kc8 c7 Qg2 Ra3 Qf3 Ne2 Bb4 Nbc3 Bh4 Nf4 Bg3 Be2 Qe3 Rd1 b1Q+ Rd3 Bc6 Bb2 Qf1 Rd2 Bg2 Qf6 Qd4 Bd5 Bh4 Ba2 Bg5 Qe7 Kb7 c8B+ Kb8 c6 Nc5 Bb7 Nd3 Qe6 Bc5 c7+ Ka7 c8Q Bh6 Be4 d5 Qcc6 Kb8 Be7 Rc8 f8Q Nc1 B4f3 Qff2 Qef6 Bf1 Bh1 Rd8 Q8f7 Rd7 Qb6+ Rb7 Qfc6 Bg2 Bf8 Qf1 Qe7 Bf3 Bd3 Bd1 Be2 Bc2+ Qe4 Nf6 Be7 Rf8 h8N Ng8 Kh7 g6 Nf7 Rc8 Ne5 Rc7 Qa6 Rb5 Qab6+ Rb7 Nb1 Qff2 Rf3 Rb3 Nc3 Ra3 Qa6 Rb5 Qa5 Ba7 Bb4 Bc5 Qe3 Qh4 Qe4 Qf6 Qe3 Qf5 Qd8+ Qc8 Qe7 Qf8 Qd3 Rb6 Qa6 Rb5 Qab6+
Nbb3BB/n6n/1Q1RpBN1/2q3qQ/4rnP1/1p4BR/1KpB1r1N/4Q1k1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 b5 g4 h5 d4 c5 Kd2 b3 Kc3 b2 g6+ Kf6 a5 h4 d6 c4 d7 h3 a6 h2 d5 Qc7 d8B Qb7 g7 Qa7 d6 Qd7 a7 Qc7 d7 Bb7 Nd2 b1Q Ndf3 Rh4 Ra6+ Qd6 Ne2 Bc8 Qe1 Nc6 Bd2 Qc5 Bg2 Qe4 Kb2 b4 Bc7 b3 d8B Rb8 a8N Rb4 Bf1 Qed5 Bg2 Nh6 g8Q Nf7 Qh7 Ng5 Qh5 Nh7 Bd6 Na7 B6c7+ Kg7 Rd6 Rh3 Bf1 Rg3 Bb8 Rg2 Bbc7 Rf2 f6+ Kg8 f7+ Kg7 f5 e6 Nf4 Ra4 Ng6 c3+ Kb1 c2+ Kb2 Rc4 Bd3 Re4 Bh4 Be7 f8B+ Kf7 f6 Qg5 Bg7 Bd8 Rg1 h1N Nh2 Ng3 Rh1 Ne2 Bh8 Nf4 Bg3 Be7 Bd8 Bf8 Nf1 Be7 Rh3 Bf8 Nh2 Be7 Rb6 Bd6 Rc6 Bb8 Rb6 Ke8 f7+ Kd7 f8Q Bb7 Rb5 Kc6 Bdf6 Kd5 Rb6 Bc8 Ra6 Re3 Bf5 Re4 Qd6+ Kc4 Qc7 Kd3 Rd6+ Nd5 Qa1 Ke2 Qb6 Nf4 Nf1 Kf3 Qe1 Kg2 Nh2 Qc4 Ne7 Qb4 Bg6 Qbc5 Bf7 Qcf5 Bg8 Qc5 Qe2 Kh1 Ng6 Kg1 Qe1+
B4bq1/1Q1nQb2/KQ1p2Q1/pB1P2NB/r5nr/p2q2Rb/6R1/1N1k1R1Q b - - 0 1 illegal: No possible last move, all moves rejected
4B3/1Q2NK2/r1p1P3/r2nqp1R/kR1N3p/1q3n1B/3N1R1B/1qQ1bRRb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Kg4 f5+ Kh5 c6 b4 h6 Kg6 h5 d4 a4 g4 a3 e4 f3 b6 h4 b7 a2 b5 f2 d6 Nf6 d5 Ra4 b6 Rd4 e5 Ne4 e6+ Ke8 d7+ Ke7 Bf4 Nc5 Bh2 Qc7 d8R Rc4 Nf3 Bd7 Nd4 Rh7 Nd2 Na4 Rg1 Qg3 Bh3 Kd6 Qc1 Kc5 d6 Bc8 d7 Kb4 Re8 f1Q d8R Be7 Rh8 Nd7 b8R Nc3 b7 Ka4 Rb1 Rf7 Rh5 a1Q Rg8 Qa2 Rb2 Qfe1 Rf1 Rc5 Rg7 Rf8 Rg8 Rd8 Kf7 Qb3 g6 Nd5 g5 Ra5 g7 Bb4 g6 Re8 Ra8 Ra6 b8Q Qge5 Qb7 Q1e4 Rb8 Qb1 Rf8 Ra5 g8N Bc3 g7 Rd8 Qa7 Ba6 Ne7 Bd3 g8B Be4 Qb7 Bh1 Bh7 Re8 Bg6 Rc8 Rg8 Rd8 Ne4 Be1 Rbf2 Rc8 Nd2 Rc7 Qc8 Rca7 Qb7 R7a6 Bh7 Nc5 Rgg1 Ne4 Bg6 Ng5+ Kg8 Nf3 Be8 Nc3 Kf7 Nd5 Qa8 Qa1 Rb5 Qab2 Qb7 Qb1 Rb4+
BB4RQ/1B2r3/1p5K/3p2n1/Q2b1Npk/Nb3q1n/2BRPqRQ/5Brb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Ke3 f5 Kf4 d5 Kg5 f4 a4 b6 h4 f3 c4 f2 e6 b3 a5 g6 c6 b2 c7 Bb7 c8R Rh6 a6 Qd6 a7 Qh2 c5 Na6 c6 Nb4 c7 Rh8 h6 Rh7 h5 Nd3 Na3 b1B Nh3 Nf6 Ra2 Bc6 Rd2 Bg7 Qa4 Nf4 Rg1 Be4 Rg8 Bh1 c8B Bb5 Ba6 Bc4 Rg2 Bb3 Bb7 Rd8 a8B Ne4+ Kh4 Kf6 e7 Ng5 e8B Bh8 Kg4 Rf7 h7 Re7 h6 Bg7 h8Q Rc8 Ng1 Nfh3 h7 Rc3 Kh4 Rg3 Bb2+ Kf5 Be5 Bf6 Bb8 Bd4 Nf3 Qg1 Ne1 Qh2 Nd3 Qg1 Rh2 Qg2 Nf4 Qf3 Bb5 Rg1 Bd3+ Qe4 Bg2 f1Q Bc2 Qf3 Bf1 Qe3 Rg2 Qf2+ Rg3 Ne6 Bc6 g5+ Kh5 g4 Bcb7 Neg5 Rg2 Qd3 Kh6 Qe4 Nd3 Qef3 Nf4+ Ne4 Qg7 Re8 Qc7 Re7 Ng6 Kf6 h8Q+ Kf5 Rg7 Kf6 Qh2 Kf5 Kh7 Kg5 Nf4+ Kh4 Kh6 Ng5 Rg8
1N2KB2/r3Br2/p1r2pQ1/nP1Q4/n4R1Q/pQR1N1q1/Q6b/1Bqb1N1k b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Nh6 fxe5 Ng8 a4 bxa4 Kf2 Kd7 Ke3 c5 Ke4 g5 Kf5 g4 b4 g3 h4 a6 e4 g2 d4 c4 h6 a3 h7 f6 Kg6 c3 Kf7 c2 b5 Bh6 d6 Bb7 d5 Ra7 e6+ Kc8 e7 Kd7 e8Q+ Kc8 e5 Ra8 h5 Bg5 e6 Be3 d7+ Kc7 e7 Kd6 h6 Ke5 d6 Ke4 Qd5+ Kf4 Rh3 Bc8 Nc3 Qb6 d8B Qb7 d7 Qc6 Nd1 Qb7 Ne2+ Kg4 Ng3 g1R Bd3 Qb6 Nf1 Bg5 Nde3+ Kf4 Qf8 Nc6 e8Q Ra7 Be7 Na5 d8N Qb8 Nc6 Bg4 Qb3 Qc7 Nb8 Bd1 Bd2 c1Q Bb4 Rg3 Bb1 Kf3 Rh4 Kf2 Rf4+ Kg1 Qc6 Rf3 Qfe8 Kh1 Qcd5 Bh4 Kf8 Bg3 Qg6 Bh2 Ke8 Qd6 Bf8 Ne7 Bc5 Rg8 h8Q Nc8 h7 Rgg7 Qhg8 Rgf7 h8Q Nb6 Qh4 Na4 Bb4 Qe5+ Bbe7 Qg5 Ra2 Qg3 Rg2 Rf2 Qa2 Rc2 Rd2+ Qf3 Rd3 Rc6 Qdb3 Qg3 Rc3 Rh7 Qge6 Rf7 Qed5+
B1N4q/1Q3Bn1/pp2qP2/k2r1N2/3BR2n/2QK4/1rpNQ1RB/1B1b2bn b - - 0 1 illegal: No proof kernel
N1N2KQ1/n2Q3p/b1pP2b1/2r1B2q/Rp1Bqk2/B1Bn3Q/1N4R1/r3bB2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 b5 Kf4 b3 Ke5 b4 f4 c6 a4 b2 d4 e6 g4 Qe8 a5 Nh6 d6 Be7 a6 Qf8 a7 Bd8 d7 Ba5 d8B Ng8 g6+ Kg7 d5 Qe8 Kd6 e5 f6+ Kf8 g5 e4 f5 e3 f7 Kg7 Bc7 e2 Nh3 e1Q Nf2 Be6 Na3 b1B Rh2 Bd7 Ne4 Qf2 Rg2 Nf6 f8B+ Kg8 g7 Kf7 Nc4 Qg1 Nb2 Qh1 Ra4 Ng8 f6 Kg6 f7 Kf5 g6 Ne7 g8Q Na6 Bg7 Bb6 f8B Nc5 Bd4 Bc8 g7 Ba6 Qd2 Rb8 a8N Nd3 Qe3 Qeh5 Qh3+ Qg4 Kd7 Nc8 Bce5 Na7 Ke7 Bc5+ Kf7 Rb5 Bc3 Be3 Bc5 Bd2 Kf8 Be1 Bc5d4 Rc5 Nd6+ Kg6 Rc2 Qhe4 Nc8 Kf5 Rg2 Bc2 d6 Bb1 Ke7 Bc2 Qe8 Rf8 Qh2 Qh5 g8Q Rf6 Qd8 Rg6 Kf8 Rg3 Bh8 Re3 Qh3+ Kf4 Nc4 Bb1 Ba3 Re2 Qc7 Ra2 Nb2 Ra1 Qcg7 Ba2 Qc7 Bf7 Qcd7 Bg6 Bhe5+
2r1Qn2/4Kp1q/bp3PB1/N1p3Qq/2nBQ1R1/3B1N1B/NR2bk2/1qB4r b - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Bg4 cxd5 Bf3 b4 axb4 d6 Bg7 d5 Bd4 e3 Bg4 exd4 Bc8 Ke2 Kd7 Kf3 c5 Ke4 h5 Ke5 b6 f4 e6 a4 h4 g4 b3 f5 h3 g6 h2 a5 b2 g5 Nh6 g7 Na6 g8Q Qf8 Kf6 e5 g6 e4 g7 e3 Bd3 e2 Ra4 e1Q Qc2 Ra7 Nc3 b1Q Na2 Qb3 Nf3 Nb8 a6 Ra8 a7 Ke8 d7+ Kd8 Qe2 Kc7 d8N Kd6 Nb7+ Kc7 d6+ Kc6 d5+ Kd7 Qe4 Qc2 Na5 Ba6 Rg1 h1B Rg2 Qb1 Rb2 Qe2 Rc4 Qe8 Qf8 Qh2 g8B Qh5 Bh7 Qc8 Qg7 Qg8 Bg6 Qh7 Rcb4 Bg2 Qf8 Bf1 Qfe7+ Kc8 d7+ Kc7 Qe8 Ng4+ Ke7 Be2 Ra4 Ne3 d8B+ Kc8 d6 Nc4 Rab4 Nd7 Ra4 Rb8 a8B Nf8 Bc6 Ra8 d7+ Kb8 Bc7+ Ka7 B7f4 Rc8 Bfe3 Kb8 Bd4 Kc7 Kf6 Kd6 Bb5 Bd1 Bf1 Be2 Bh3 Na3 Bd3 Nc4 Qg4 Kd5 Ke7 Rc6 Qg2 Rc8 d8Q+ Nd6 Bc4+ Ke4 Bb5 Nc4 Rab4 Nd2 Bd3+ Kf4 Qh1 Kg3 f6 Nc4 Qd5 Ne3 Qg5+ Kf2 Bc3 Nc4 Be5 Na3 Rg4 Nc4 Bd4+ Ne3 Bdf5 Q5h6 Nh4 Q7g7 Bg2 Rh7 Bd3 Qh8 Bc3 Nc4 Bf1 Q6g7 Qe4 Qgg8 Nf3 Rh1 Be5 Qh5 Bh3 Qgh7 Bd4+
2R1n3/r1R1pQ2/QNR5/3QQBqk/KBq2Q1b/3pr2N/p1Pb1nN1/1b6 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 d5 h4 a5 b4 g5 f6 g4 b6 a4 h6 Kg6 f7 g3 b7 g2 f5+ Kf6 b5 d3 Kc3 d2 Kb4 d4 h7 a3 h5 Kg5 b6 Nh6 f6 Ra6 Nh3+ Kh4 Nc3 g1B Na4 Qe8 Bd3 Bh2 Bf5 Nd7 b8Q Ra7 b7 Rg8 h8N Ra6 Qa7 Re6 b8Q Bf4 Qe5 Bg5 Qa6 Ng4 h6 Nf2 h7 Bfh6 f8Q Qh5 f7 Nf6 Nb6 Ne8 Ka4 d3 Qf3 d1Q Bd2 Qg4+ Bb4 Qd2 Qfd5 Qc4 Ng6+ Kh5 h8R Bh4 Qfg7 Qg5 f8Q Bb7 Qf4 Re2 Qff7 Re3 Qge5 Bc8 Rhb1 Be6 Rf1 Nf6 Rh1 Ra8 Rc8 Ra7 Rab1 Ne8 Rb3 Qd4 Rbc3 Qe4 R3c7 Qd4 Qd8 Ba2 Qdd5 Bb1 Rg1 a2 Rg4 Bg3 Rc6 Qc4 Nh4+ Qg6 Ng2 Bh4 Qf8 Qg7 Rgg6 Qf6 R6c7 Qg5 Rgc6 Bg7 Qee6 Bc3 Qee5 Bd2 Qff7+
7k/P1BBQBp1/K5p1/2R2N1B/1QRrqnnN/nbB1q1b1/2R2p2/1r3N2 b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 a4 g4 a3 g5 Be7 g6 hxg6 bxa3 Nf6 a4 Bf8 a5 Ng8 e4 f5 Ke2 Kf7 Kd3 c5 Kc4 f4 Kb5 c4 d4 b6 a4 c3 h4 c2 e6+ Kf6 a6 f3 h5 f2 h6 Bc5 e5+ Kf5 a7 Bf8 a5 Qd6 a6 Rh7 e7 Nc6 e8B Qc7 e6 Kf6 d6 Nb8 d7 Bb7 d8B+ Ne7 d5 Nc6 d6 Qb8 d7 Qf4 Bc4 Qc7 Bb2+ Ne5 Qd6 c1N Nf3 Rh8 h7 Na2 Rh5 Rb8 a8B Bd5 a7 Nb4 Ra4 Nc2 Nbd2 Qc5+ Ka6 b5 Bc3 b4 Bc7 b3 d8Q b2 Bd7 b1Q Nh4 Na3 Nf1 Qe3 Qb4 Qbe4 Bac6 Rg8 h8R Rb5 Be2 Bb3 Bd5 Rb7 Bdc4 Rb8 Qe8 Nd5 e7 Nf4 Bf7 Rb5 Rg5 Rd5 Bf3 Rd4 Bh5 Ng4 Rd5 Ne6 Rc5 Nf4 Bf5 Kg5 Qd7 Kf6 e8N+ Kg5 Qe6 Bd6 Qd7 Be5 Nd6 Rb8 Rc8 Kh6 Qe7 Kh7 Bd7 Rb5 Ndf5 Bd6 Bd8 Kh8 R8c6 Nd3 Bc7 Bg3 Ra5 Nf4 Rc4 Rd1 R6c5 Rb1 Rc6 Rd5 R6c5 Rd4 Ra4 Nb5 Ra2 Na3 Rc2
rn2NB2/p2Rpq2/2R2BnK/NR2r2B/1Q3N2/3kB1Pq/Q1p3Br/4bb2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 Kg6 Kf4 c5 b4 h5 d4 h4 b6 e3 g3 c4 b7 c3 d6 c2 d7 h3 d5 e2 b5 e1Q d6 h2 b6 Nc6 b8Q Rh5 b7 Ne5 Nh3 Qc3 Nd2 Qdc7 d8N Bd7 Ne6 Q3c5 Nb3 Be8 d7 Qc3 d8R Qd7 Rb1 Nf3 Ng7 Ng1 Na5 Rh6 Be3 Qa1 Bg2 Nf3 Qd5 Ne5 Qa2 Rh8 Rb5 Qc7 Rd7 Bf7 Ne8 Bc4 f3 Kf7 g6+ Ke6 Kg5 Nf6 f4 Qc8 g7 Ng6 Rhb1 Rg8 Kh6 h1R Re1 Rh2 f5+ Kf7 Rh1 Qf1 Qf4 Qf3 b8B Qd5 Re1 Bf1 Qb4 Qe6 Be5 Qcc4 Rdd5 Nd7 f6 Nb8 Rd7 Qeg4 B5d4 Ke6 f7 Qd5 Be5 Kf5 Rd1 Qe6 R1d6 Qf3 B5d4+ Ke4 Rc6 Kd3 Bf6+ Qfd5 Bf3 Qf5 Bh5 Qe6 Ng1 Qg4 Ne2 Qe6 Nc3 Qh3 Rdc7 Qc4 Nd5 Qb3 Rd7 Rh8+ Kg5 Re2 g8B Bg7 f8B Rh2 Bb2 Bc3 Ba1 Be1 Bf6 Rh7 Be6 Rf7 Kh6 Rg7 Bg4 Qc4 Bf3 Rf7 Bc3 Rf5 Bf6 Re5 Bg2 Qf4+ Kh7 Qff5 Kg7 Qe6 Kh6 Qf7 Nf4+
7B/1b1Qr2k/2N4n/4p2B/B1R2bRq/P1BrQK2/r1ppBN2/1RnQ3r b - - 0 1 illegal: No proof kernel
1QRRB3/1K6/6N1/kb1Rpr1R/2N1Nr2/pbn3pQ/2bqQP1n/b3R1B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 a5 Kc4 g5 Kd5 a4 h4 g4 c4 d6 b4 Kd7 f6 Kc7 f7 Kb6 h6 d3 h7 a3 h5 d2 h6 Qf6 c5+ Ka7 c6 Kb6 c7 Ra6 Qe2 d1B Rh5 Qg7 Nc3 Bd7 c8R Qf6 Bf4 Be8 Nf3 Nc6 Bh2 g3 Bg1 Ra4 Nd2 Qd8 Nce4 Bc2 Re1 Na7 Bh3 Be7 f8N Bg5 Bg4 Be3 Bd7 Bd4 Ng6 Ba1 Nc4+ Kb7 b6 Ka6 b7 Nf6+ Ke6 d5 Kd6 d4 b8Q Nb5+ Kc6 Rf8 h8R d3 h7 d2 Rg8 d1B h8Q Ng4 Rg7 Bf7 Be8 Nh2 Qh7 Bg8 Rd7 Nc3 Rd5 Qg5 Qd7 Qd2 Qh3 Rf4 Ncd6+ Bd3 b5+ Ka5 b6+ Bb5+ Kb7 Bc2 Rd8 Rd4 Rc8 Rd3 Rd8 Rdf3 Nc4+ Ka4 Rc8 Rf5 Rcd8 R3f4 Kc7 Qe3 b7 Bd1 Rc5 Rh4 Nb6+ Kb4 Qa8 Ba2 b8R Rhf4 Rcd5 Qd2 Rbc8 Bab3 Qb8 Ka5 Kb7 Bdc2 Nc4+
1kqr4/2B2b1b/4B2p/bb1RQ1N1/PBNR1rR1/3ppN2/1B5Q/n2K1Bn1 b - - 0 1 illegal: No possible last move, all moves rejected
RB6/2qR4/1nBB1P1k/p1b2r2/1p4br/bB1KB2R/NQ1NQ2p/n2N3b b - - 0 1 illegal: No proof kernel
RQ1rbR2/N6r/K1p1B2Q/1r1B1NBr/B5n1/1Pkp1p2/B3qbR1/Q3n3 b - - 0 1 illegal: No proof kernel
1BnRr1QN/2r2q1p/4B3/1Bp1br2/6K1/3bR3/1QrpPQ2/kNQn1QR1 b - - 0 1 illegal: No proof kernel
2N2N1K/4P1r1/2Q2pRn/2Rp1N2/3bp1N1/k1b5/b1NQ1B2/RQ1qbBrn b - - 0 1 illegal: No proof kernel
1QNb2BR/p4r2/2pPb3/3N1R2/n2B2bb/K3N1Nk/1pQ1q2N/2nB1rQ1 b - - 0 1 illegal: No proof kernel
1bnN1k2/1rq1p2K/qBb1n3/2pn1BQp/2PN2QN/2Q2QR1/5RB1/Q4b2 b - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 d5 fxg5 dxe4 h4 Qd7 g4 Bb7 h5 Bd5 g6 Qd8 g5 Ra6 g7 Rg6 hxg6 Bb7 Ne2 Ba6 Ng1 Bc8 Ke2 f5 Ke3 h5 Kf4 c6 d4 e3 b4 e2 c4 e1N b6 a4 b5 a3 d5 a2 b7 Qc7+ d6 Qd7 b6 Rh6 Rh2 Qc7 Nd2 Nf3 Ne2 Nd4 Rf2 Nf6 g8B Nb5 g7 Ne4 g6 Bd7 Nf3 Nd4 Nh4 Qd8 Be3 Nc3 Kg5 f4 Be6 f3 g8Q Nc2 g7 Nd4 Bf5 Bc8 Bg2 Nd7 b8Q Bb7 Qa7 Nd5 Qaa4 Rh8 Kg6 Ne6 Nd4 Qc7 Qf1 Ba8 b7 N7b6 b8Q+ Nc8 Qbb4 Bb7 Re1 a1Q Qc3 Qa3 Qd1 Qa6 Qda1 Ba8 Rd1 Bb7 Rd3 c5 Bd2 Ba8 Qfd1 Bc6 Qf7+ Kd7 g8Q Bh6 Qgg7 Rg8 Kh7 Bf4 Qg5 Rg6 Qff6 Ke8 Qg4 Rg8 Qfg5 Kf8 d7 Be5 d8N Bg3 Re2 f2 Qf3 f1B Rf2 Bh2 Qfg4 Rg6 Rg3 Rf6 Bfe4 Rf3 Bf5 Re3 Qdf3 Re1 Qca3 Rb1 Ba5 Rb7 Bb6 Qd7 Rh3 Bb8 Qa3c3 Qc7 Rg3
1BR3RB/R2p2q1/2r1p1qR/qNrk2pn/2B2Q2/n4KP1/b1N2R2/1Q3N1n b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Bg7 h6 Ng8 hxg7 Qb6 Bg5 Qc7 Bc1 Qd8 Ke2 Kf7 b4 h5 c4 a5 f4 e6 f6 d3+ Kf3 h4 f5 g5 b6 h3 g3 d2 b5 a4 c5 h2 b7 a3 b6 a2 c6 Rh3 c7 Na6 b8Q Nb4 b7 Na6 Ne2 Rh8 Nd4 Nb4 Bb2 Nc2 Bc4 Na3 Nc2 Ra6 Bd4 Ke8 f7+ Ke7 f8R Kd6 f6 Rc6 f7 Nf6 g8R Nh5 Re8 Qe7 f8R Qg7 Rf6 Rc5 Rf1 h1N Rh6 Rc6 Rf2 Qg6 Qe1 Rc5 Qe3 Kc6 Qf4 d1Q+ Kg2 Qg4 Nd2 Q4f5 Nf1 Qg7 Kf3 Qfg6 Rb1 a1Q Rb4 Q6f7 Ra4 Qfg6 Ra7 Qe1 Qa8 Qee5 b8B+ Bb7 c8N Qe1 Nd6 Qa5 Be2 Kd5 Rc8 Rc6 Ba1 Ba6 Qb7 Bc4 Qb1 Bb3 Nb5 Ba2 Rgd8 Rf8 Re8 Rf5 Rg8 Re5 Bb2 Re4 Bc3 Rec4 Bd3 R4c5 Be2 Q7f7 Bh8 Qfg7 Bc4+
nNN1q3/1p2Q3/pPN1RNQ1/Q1n2B2/5nrn/n2kN1R1/3p4/K1BBrb2 b - - 0 1 illegal: No proof kernel
3b1qbr/k2BBRQp/2pR1Q1B/2b1BRN1/3rb2P/1B4Q1/1p6/n1bN1K2 b - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Na6 g4 Rb8 f4 Nh6 b4 axb4 g5 Nc5 f6 Kd7 f5 Ne4 f7 Nf6 gxf6 Ng8 Qf3 Ra8 Qe2 Ra7 Qd1 Ra8 h4 e5 a4 b5 d4 g5 a5 b3 a6 g4 d6 Kc6 a7 Kb6 d7 e4 d5 b2 d6 b4 Ra6+ Kb7 Bb5 b3 Nf3 e3 O-O e2 Ng5 e1B Qd3 g3 Nc3 b1B Bb2 g2 Qg3 Nh6 Nd1 Bg7 f8R Bd2 f7 Qe7 d8B Bd7 f6 Be6 d7 Be4 Rf5 Bc1 Be5 b2 Rd6 Ng4 Ba4 Ne3 Bb3 Rb8 a8B+ Ka7 Bc6 Nc2 Bca4 Qe8 Be7 Na1 d8Q Rb4 Bd7 c6 Kf2 g1B+ Kf1 Kb7 Rg8 Rc4 f8B Ka7 f7 Bf6 Bh6 Bc5 f8Q Rd4 Rg7 Bg8 Qf7 Qf8 Qg6 Qf7 Qf8 Qe8 Rf7 Qc8 Qfg7 Qe8 Bf8 Bd8 Be7 Qf8 Q6f6
1r2RBR1/R1b1B1Q1/4Rp2/5Prb/2Bpnp1N/Q2bR3/Nrk5/q1bN3K b - - 0 1 illegal: No proof kernel
1NqR4/1nnNr3/N2b3n/N1B1npQ1/p3N3/P2b1bB1/k1RpBQ2/1R1K4 b - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 b5 b4 c5 bxc5 h5 f4 hxg4 e4 Nf6 e6 Ng8 f5 Qc7 e5 Kd8 Bh6 Ra6 Bf4 Qb6 Bc1 Kc7 e7 Kc6 Bd2 Qd8 Bg5 Kc7 Bc1 Re6 fxe6 Kc6 e8R f5 c4 d5 h4 g5 a3 d4 e7 g3 h5 d3 e6 g2 h6 b4 h7 g4 Ra2 a4 Nf3 g1N Ng5 g3 Qf3+ Qd5 Bf4 g2 Be2 b3 Nd2 b2 Bg3 b1B Qf2 Qf3 Nb3 Nh6 Rd8 Bg7 e8Q+ Nd7 e7 Bf6 Qh5 Rg8 e8N Nh3 h8B g1N Nc7 Nf4 Na6 Be7 Bd4 Ne6 Qg4 Rg7 Qh4 Kb7 Na5+ Ka7 c6+ Ndc5 Kd2 Kb6 Be3 Bd7 Kc1 Be8 Ne4 Bh5 Qg5 Bd6 Rd2 Re7 Ra2 Nd4 Rd2 Nb7 c7 Qf4 c5+ Kb5 c8N Ne6 c6 Nf3 c7 Ne5 Nb6 Bf3 c8N Bc2 Na8 Bb1 Ncb6 Bc2 Nb8 Qh4 Nf6 Qc4 Ne4 Qc8 N6d7 Bb1+ Bc5 Bc2 Nac6 Kc4 Nc7 Kb3 Nca6 Ka2 Na5 Nc7 Rdd1 Bb1 Kd2 Ne6 Rc1 Nc7 Rc4 Bc2 Rc1 Bb1 Kd1 d2 Rb4 Bd3 Rbb1 Nc4 Rc3 Ne5 Rc2+
n1Qnb3/1kN2pR1/2pbn2B/2bN1QN1/1N2K1B1/2P3p1/1qN2B2/1r2n1RQ b - - 0 1 legal: proof: d4 b5 a4 a5 axb5 h5 e4 e5 dxe5 Ne7 g4 hxg4 f4 Ng8 f5 Ke7 e6 Kf6 e7 Ra7 Ra4 Ra6 Ra1 Re6 fxe6 Kg6 e5 Rh3 Ra3 Rh7 Ra1 Rh8 Kd2 Kf5 Ke3 d5 e8N g5 h4 c6 b4 a4 h5 g3 h6 g2 c3 a3 b6 g4 b7 a2 b5 g3 e7 Ke6 h7 Kd7 b6 d4+ Ke4 d3 Qh5 d2 Be2 d1N Na3 Nb2 Bh6 Na6 b8B Nc7 b7 Ne6 Nf3 g1B Ng5 Nc4 Bg4 Na5 Nc7 Bf2 e8N Bd6 Nd5 Bfc5 Ba7 Qb6 Nc2 Qb2 Nec7 Ne7 Rag1 a1N b8N+ Kd8 Nba6 Bd7 Qg6 Kc8 Nab4 Kb7 Qf5 Rb8 h8Q Nc8 Rh4 Nb6 Qhh7 Nf4 e6 Be8 e7 Na8 Qh8 Ne6 Bb6 N1b3 Ba7 Nc1 Bb6 Bd7 e8Q Nd3 Qd8 Be8 Qd7 Ne1 Rh3 Be7 Rhh1 Bcd6 Bf2 Bc5 Qd4 Bed6 Qd1 Ka7 Rh3 Nb7 Qdf3 Nbd8 Qh1 Qb3 Bf8 Rb5 Rh7 Kb7 Bh6 Qb2 Rg7 Qa2 Nba6 Rb1 Nab4 Qb2 Qc8+
4R3/QpR2R1n/3p1N1K/r6B/rb4r1/n1rBR1QN/1k1P1pRn/4qQB1 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 e5 fxe5 h5 g4 d6 gxh5 Qf6 c5 Qd8 c6 Bd7 cxd7+ Ke7 Kf2 Ke6 Kf3 Kd5 Kf4 Kd4 h4 f5 e4 c5 a4 c4 e6 b3 e7 b2 Kg5 g6 a5 f4 a6 f3 e5 c3 h6 c2 e6 Rh7 a7 Qc7 d8R Qb6 e8B Nf6 e7 Ng8 h5 Rh8 h7 Nc6 h6 Nf6 Rc8 Ne5 Bd3 Bg7 Qf1 Neg4 Ra3 Nh2 Nc3 b1N Bb2 c1R Nd5+ Rc3 Nh3 f2 Rc7 Qb3 Rg1 Qd1 Rg2 Qe1 Rb3 Rf8 h8R Na3 Rh7 Bh8 Rf7 Nh7+ Kf4 Rg8 Nf6 g5+ Kf5 Bg7 Kg6 g4 Kh5 g3 Kg6 Rc8 a8Q Rh8 Qa5 Ra8 Qg5 Ra5 Kh5 Nf8 h7 Rg8 h8Q Nh7 Kg6 Rf8 Qg8 Ra4 Qa5 Bh8 Bc6 Ra8 e8R Ra7 Kh6 Ra6 Rg1 g2 Qg3 Ra8 Bf3 Ra6 Rh1 g1R Bh5 Rg2 Rg1 Ra8 Qh4+ Rg4 Rg2 Ra7 Qg3 Ra6 Qb5 R6a5 Ba1 Rf4 Qa6 Rg4 Nd7 Kd5 Qa7 Bd4 Bb2 Bc5 Ba1 Rc1 Be5 Bb4 Bf5 Rc6 Re3 Rc3 Bf4 Rac5 Nf6+ Kd4 Qh1 Kc4 Qf1+ Kb3 Bd3 Rca5 Qh4 Nf3 Bh2 Kb2 Bg1 Nh2 Qg3
2nR2nr/p1q4p/Q3Q1BP/5Q1B/k1rqNq2/3q1R2/1Qp2NKQ/1RBb4 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kd3 Kd7 Ke4 g5 b4 c5 h4 c4 d4 g4 b6 g3 b5 g2 d6 c3 f5 c2 h5 Ba6 h6 Ne7 b7 Nbc6 b8Q Rf8 d5 Qc7 b6 Bb5 b7 Na5 f6 Ba6 f7 Nc8 Nc3 Rg8 f8Q Bb5 Qf5+ Kd8 d7 Nc4 Qd3 Rh8 Ra3 Ke7 d8R Bc6 Nh3 Qd7 Qh2 g1Q b8Q Rg8 Qb2 Na5 Qa6 Qc7 e3 Rh8 Bd3 f1Q Nf2 Be8 Rb3 Nc6 Qe6+ Kf8 d6 N6e7 d7 Ng8 Qf5+ Ke7 Be2 Qc5 Kf4 Qg7 e4 Bh5 e5 Qc7 Nce4 Bg4 Bd1 Qd3 Kg3 Rb8 Rf1 Rb4 Rc3 Bh5+ Kh3 Rc4 e6 Qgd4 Ra3 Q3e3 Ra1 Qef4 Rb1 Nb6 Ng3 Kd6 e7 Kc6 e8B Qdd2 Nge4 Qd4 Ng4 f2 Kg2 Qfe3 Bg6 Qed3 Qaa1 Nc8 Bf3 Qb3 Qe6+ Kb5 Qaa6+ Kb4 Qf5 Qcb6 Rf8 Qa5 d8Q Ka4 Qdd6 Qa3 Rd8 Qad3 Ne3 Bg4 Nd1 Bh5 Qde6 Bg4 Re1 Bh5 Re3 f1Q+ Kg3 Qf2+ Kh3 Qh4+ Kg2 Qf4 Ndf2 Bg4 Be2 Bh5 Bf1 Bd1 Be2 Qde5 Beh5 Qed4 Qad6 Qac5 Rf3 Qc7 Qa6+
5Q1R/qrp1k2N/2nqr3/2n1R3/B2Br2R/p1Q1pr2/2N1P2B/2bNNN1K b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 h3 fxg4 Qa4 g3 Qd1 g2 Nc3 g5 Nb1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Ra3 Qc8 Ra1 Qd8 f4 a5 d4 e5 b4 h5 b6 a4 d6 h4 f5 h3 d7+ Ke7 f6+ Kd6 g5 e4 b5 h2 b7 Qe8 d8B Qe6 d5 Qe5 b6 Qe7 g6 Ra5 g7 Rh5 f7 Qf6 Nf3 g1Q Qb3 g2 Nbd2 Qf4 Qc3 Qg5 Bf6 Nh6 g8N Q1e3 Bd4 g1R Nf6 Rb5 Ng4 Qf5 Nf2 Na6 b8N Rc5 b7 Bg7 f8N Qf6 Nc6 Rb5 b8Q Rc5 Nb4 Qd8 Nh7 Rg6 Bh3 Rh4 Kf1 Re6 Kg2 Ng8 Nf1 Rb5 Nc2 Bh6 Nfe1 Ke7 Nd1 Nc5 Ra3 Rb7 d6+ Kf7 d7 Ne7 Rb3 a3 Rb5 Nc6 Bb2 Qf6 d8R Ke7 Rh8 Qe5 Bf5 Qd6 Bg6 Rf4 Be8 Rf3 Be5 Qed4 Qc8 Bc1 Bg3 Nd7 Re5 e3 Qb8 Nc5 Bd7 Nd8 Ba4 Nc6 Qf8+ Kd7 Rg1 h1R Bf4 Rh5 Bh2 Rh4 Kh1 Rhf4 Rg4 Re4 Bb5 Qa4 Rh4 Qa8 Ba4 Qa7 Qb4 Rb5 Bd4 Rb7 Qf5 Ke7 Qc3 Qd5 Qf4 Qd6 Qf8+
1K5R/3k2p1/1n1Bp3/qBnN1RrR/2rnbqP1/2p1R2n/2B2Q2/NQ1RN3 b - - 0 1 illegal: No proof kernel
nn1nrR1R/2Rp2Bb/1Q2Bb2/1Rp4N/2b4k/QQR3p1/1K2n1P1/r4N1B b - - 0 1 illegal: Other
5N2/2Q1N1nr/q2B1RQ1/NQb1K2P/2p4Q/pbp2Q2/2pnB1BR/b2rk3 b - - 0 1 illegal: Other
1K4B1/1Q3N2/pb1P4/rkRRBp1n/b1Rr2q1/1pp1N2n/R2R2Q1/1B3Qb1 b - - 0 1 illegal: No possible last move, all moves rejected
3n3N/1bR3P1/prr1QNqR/1k6/3Nr1pp/4bR1Q/pN1n1N1B/1B2B2K b - - 0 1 illegal: No proof kernel
2b1R1Q1/2RN1prn/Q4N2/2pp1p2/2bPQ2k/N1qB2r1/1R2Q1n1/1rB2Q1K b - - 0 1 legal: proof: f4 b5 a4 e6 axb5 Ke7 h4 Ke8 f5 exf5 c4 g5 hxg5 Ba3 c5 Bb4 b3 Ba5 b4 Bb6 cxb6 Qf6 Ra3 Qe7 Ra1 Qd8 Kf2 Ke7 g4 a5 Kg2 d5 d4 c5 e4 h5 g6 Kf6 g7 h4 e5+ Kg6 b7 a4 e6 a3 g5 a2 e7 Nd7 e8R Nf8 b8Q Qd6 b6 Nf6 g8N Qe5 b5 Rh6 b7 Qe1 b6 Nh5 Qa7 Rh8 b8Q Rh6 b7 Qe4+ Nf3 Rh7 Rh2 h3+ Kh1 Nf4 Bd3 Kh5 g6 Qe7 g7 Ng2 Qf4 Qe3 b8Q Qd2 Na3 Qc3 Rb1 a1R Rb7 Rb1 Qbe5 Rb8 Rc7 R8b3 Qfd2 Kg4 Qee2 Kg3 Ne5 Kh4 Nac4 Ra3 Nf6 Rab3 g8Q Rg7 Qdf1 Nh7 Qa6 Ra3 Kg1 Rab3 Qc2 Ra3 Rh1 Rab3 Ned7 h2+ Kf2 Ra3 Rg1 Rab3 Na3 h1B Kf3 Ne1+ Kf2 Be4 Rg2 Bf3 Kg1 Be4 Bb5 Bd3 Kh1 Bc4 Rf2 Qb2 Rg2 Rbg3 Qcd3 Qc3 Qee4+ R7g4 Rb2 Ng2 Qee2 Rg7 Qdf3 Bb3 Bd3 Bc4 Qfe4+
4N1r1/1bn1qp1Q/1rk1Bp1N/1R1pNN1n/r2p2B1/2PRB2Q/1N6/b1K4R b - - 0 1 illegal: Other
N1b1r1k1/K1nrP3/3RpQ1R/Bp2N1pQ/n3NR2/b1N5/5p1Q/1Br2q1N b - - 0 1 illegal: No proof kernel
1B1r1B2/2n1p1Q1/1Np1p1pQ/rQKB4/4qbP1/N3Bk2/3rRn2/b3BRN1 b - - 0 1 illegal: No extended proof kernel
3NB1Q1/1R1K4/N2p2rN/p1NR1pBQ/1Pn2qN1/1p1r1R1n/2Q3q1/b2b2k1 b - - 0 1 illegal: No proof kernel
qR3n1Q/Bq2R2b/3p1Pr1/5pk1/1n1pQ3/1NQBN3/p1B1B2r/1RK1b2B b - - 0 1 illegal: No proof kernel
1rN1Q1b1/5nN1/QNpQ3q/B1p3b1/2n1K2p/qp2RQ2/P1Bk4/1B2Rr1Q b - - 0 1 illegal: No possible last move
Q3qR2/NnR4b/1p1nR3/pQb5/2r4k/q1Q2p1p/PN3BNK/2rQBQ2 b - - 0 1 illegal: No possible last move
qnkB4/q4rNp/BQ4nQ/RP2r1R1/1pB1Q2p/1Q3b1R/1bK1p2N/Q7 b - - 0 1 illegal: No possible last move
4Q3/N1r2pR1/2P5/R1p2KQ1/4R1BN/bN1p2pn/R1bBBk1r/1q1qRn2 b - - 0 1 illegal: No proof kernel
B2r2BQ/p1N4b/1b1Qq1pq/1n1P2R1/1K2n1BB/N1R1Nkp1/6pr/B1Q5 b - - 0 1 illegal: Other
1B2k1nB/pK1p3p/1R6/3N1B1B/1R3N1Q/pb3Bnr/1QNqP3/b3qQr1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 bxa4 d4 Qf6 dxc5 Qd8 Kd2 f5 Kc3 f4 Kb4 f3 Kb5 f2 b4 Bd6 c4 Bc7 g4 Nh6 c6 Rf8 g6 Qe7 c5 Bd8 g5 Ng8 e6 Ba5 c7 Qf7 g7 Qf6 g6 Na6 e7 Qe5 Rh4 Bb6 Bb2 Ba5 Nh3 Bb7 c8N Qg5 Na3 Bc7 Rb1 Qh6 c6 Bb8 c7 Rf7 Nf4 Be4 Nc2 a3 Bh3 f1Q Nb6 Bg2 c8B Bh1 Bf5 Qg2 Qf1 Qg4 Bb7 Be5 Bf3 Bf6 Nbd5 Be5 Ba1 Nf6 g8Q+ Rf8 g7 Nb8 Qh8 Nh5 g8Q Qg1 Qg4 Nc6 Ka6 Ng3 b5 Rc8 b6 Rg8 b7 Qf2 b8B Qe1 Ne6 Qhd2 Nef4 Rc7 Bd4 Rb7 Rh6 Rb3 Qh4 Re3 Kb7 Bg2 Bb6 Ba1 Rb4 Bh3 Qb2 Rg5 Bd3 Be6 Bd4 Rg7 Bf5 Rg6 Nb6 Bb3 Bh8 Nh5 Nbd5 Rg1 Bg2 Rh3 Bf3 Ng3 Rg6 Ne5 Rgb6 Ng4 B3e4 Nh6 Bf3 Kf7 e8B+ Kf8 Nf6 Ng8 Beh5 Ke7 N6d5+ Kf8 Rg6 Ke8 Rgb6+
Q1b3R1/1NR1q1nk/B2r2Q1/1Nb2pb1/NNpn1P2/4Q1N1/2p2pnB/1BK5 b - - 0 1 illegal: Other
2k1r2N/Bp1rR1pn/4Q1Bp/2b2pb1/3QBPB1/RB1R1r2/2qNbQ1K/8 b - - 0 1 illegal: No proof kernel
1Q2N3/3N1R2/q1bKQprp/n2Q2p1/B2kBp1B/Qr5R/Q6P/1bR3br b - - 0 1 legal: proof: f4 b5 d4 c5 dxc5 b4 f5 b3 f6 Nc6 g4 Ne5 g5 exf6 g6 Ke7 axb3 f5 b4 f6 b5 Nf7 gxf7 f4 Kf2 Ke6 Kf3 Ke5 c4 a5 b4 d5 e4 g5 c6 a4 c5 a3 b6 d4 b5 d3 c7 a2 b7 h6 b8Q d2 b6 Bg7 f8R Ne7 c6 Ra5 b7 Rd5 Na3 Rd7 Nb5 Rd4 Rf7 Bh3 c8Q+ Qc7 Nd6 Bf5 Bg2 Bf8 Qa7 Be6 b8Q Bg7 Qf8 Qb6 c7 Bh3 c8Q Qb1 Ne8+ Rd6 Qg8 Rh7 Qa3 Qb5 Qe6+ Kd4 e5 Bf5 Qe2 d1B Bd2 Ra6 Be1 Bb1 Bh4 Ba4 Kg4 Qb7 Be4 Nd5 Kf5 Nb4 Qg2 Rb6 Nf3+ Kc5 Rd1 Bf8 Rd3 Qa6 Re3 Bc6 Qf2 Bc2 Rc1 a1R Qe2 Rh8 Qea2 Rh7 e6 Rg7 e7 Rg6 Ne5 Kd4 Ke6 Bb1 Rh3 Rb5 Nd7 Rb7 Nc7 Rb6 e8B Bc5 Qef3 Bc2 Rg1 Ba8+ Bc6 Bb7 Qf8 Rd1 Ne5 Bb1 Qe7 Rf1 Kd7 Ba8 Bb7 Nc6 Qee6 Rb3 Qh1 Bb6 Kd6 Na5 Ba4 Rc1 Bg2 Bc6 Ne8 Re1 Bf3 Kc3 Nd7 Bf2 Bd5+ Kd4 Bg2 Re2 Rc1 Re1 Bd5 Rd1 Qf3 Rh1 Qg2 Bg1 Qf3 Rb6 Qfb3 Rb4 Be4 Rb7 Qb5 Rb6 Qbf5 Rb3 Qfd5+
1Rn2N1N/B6R/1Q1p1p2/1nQKB1bb/3p1P1r/1Q1R3p/n1q1k3/RB1q3R b - - 0 1 legal: proof: e4 g5 h4 a5 hxg5 b5 a4 d6 axb5 Kd7 e5 Ke6 d4 Kf5 e6 Ra7 Bf4 c5 Bc1 Rd7 exd7 cxd4 Bd3+ Ke5 Bf1 Ke6 Kd2 Kd5 Kd3 h5 g4 e5 c4+ Kc5 Ke4 f6 b4+ Kb6 g6 a4 c5+ Ka7 g5 a3 g7 h4 c6 Kb6 g6 a2 c7 h3 Bd3 Na6 Nd2 Rh7 Kd5 e4 Ndf3 e3 Ne2 Rh4 Nf4 e2 Ne6 e1N Qb3 Rh5+ Ne5 Nb8 Bf4 Nc6 Bb1 Qe7 d8Q Rh7 Nf7 Rh4 Nh8 Ba6 c8Q+ Qc7 Be5 Nd3 f4 Nh6 g8R Na7 Rg7 Ng8 Rf7 Nc1 Rh7 Bh6 g7 Bg5 Nf8 Ne7+ Ke6 Bb7 g8R Bf3 Rg6 Bh6 Rg3 Bh5 Rd3 Bg5 Qa8 Bf3 Qad5 Bh5 Qdc4 Nec8 Qc5+ Kb7 b6 Ka6 b7 Nb5 b8B Qc6 Bc2 Qg2 Ba7 Qf2 Rb1 a1Q Kd5 Na2 Rbe1 Qd1 Bb1 Qb2 Qdc7 Qbc2 Qb8 Na3 b5+ Ka5 b6+ Nb5 b7 Ka6 Qc6+ Ka5 Qbc3+ Ka4 Q3c5 Ka5 Q6b6+ Ka4 Rd2 Kb3 Rd3+ Kb2 Q8c7 Kc1 b8R Be2 Qcb7 Bh5 Rc3 Kd2 Reg1 Ke2 Rd3 Na3 Qb3 Nb5 Qbb6 Qdd2 Rc1 Qcd1 Bc2 Qc3 Ra1 Qb2 Bb1 Qbd2 Qcb4 Q2c2 Q4c5
KRn1N1kq/2R4Q/bp1bbp2/N5rQ/5P1p/1B2p1q1/7Q/B1nRNQQ1 b - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Bg4 cxd5 Bf3 b4 axb4 e4 Bh5 e5 Bg4 d6 Bc8 d5 Bh6 Rh4 Kf8 Rh3 Kg7 Rh1 Ra6 d7 Rd6 exd6 Kg6 Bb2 Bg7 Bc1 Bf8 Kd2 Kg7 Kd3 e5 Ke4 h5 a4 c5 g4 b6 f4 f6 a5 c4 g6 b3 a6 h4 a7 b2 a8N c3 g5 c2 Nf3 Be7 Ra7 Qc7 d8R Bh3 d7 Qd6 Na3 b1B Nc4 Be6 Rc7 Qc5 d6 Ba2 Bb2 c1Q Na5 Qd2 Bc4 Qdb4 Qf1 Rh6 Ne1 Rh5 Ba1 Qc3 Bb3 Kh8 g7+ Kh7 g6+ Kh6 Rf8 Na6 d8Q Bf7 d7 Qh3 Qe8 Nb4 d8Q Qg3 Qd2 Rg5 Qh2 Bd6 Qeb5 Be6 Rb8 Ne7 g8Q Bc4 g7 Nd3 Rg1 Kg6 Qh7+ Kf7 Rh1 Nc1 Qe8+ Ke6 Qeh5 Nc8 Rg1 Qb5 Rh1 Qe8 g8Q+ Qf7 Rc5 Ke7 Nc7 Ba6 Ne8 Qg7 Kd5 e4+ Kc6 e3 Rc3 Qf7 Qgg6 Kf8 Qb1 Qg8 Rg1 Bb5+ Kb7 Qh8 Rc7 Bd3 Ka8 Ba6 Bd1 Be6 Bb3 Bb4 Rg2 Bd6 Rd2 Bg8 Rd1 Be6 Q7c2 Kg8 Qcf2 Bd3 Qf2g1 Ba6 Qbh7+
B1QRQ3/q3N3/Rr1Np1Q1/2p4Q/q2QK3/n1P4r/1pBqp1n1/NkB2b2 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 a5 bxa5 Ra7 Qg4 Ra6 Qd1 Ra8 h4 e6 g4 Be7 h5 Nf6 g6 Nbd7 g5 Bf8 h6 Bg7 hxg7 Ng8 Qg4 Nb8 Qf3 Ra7 Qd1 Ra8 Kf2 Ke7 Ke3 Kd6 a4 Kd5 d4 f5 a6 b5 a7 c5 a5 h5 c3 f4+ Kf2 b4 a6 h4 Nf3 b3 Na3 h3 Nd2 e3+ Kf3 b2 Ne4 h2 Nd6 Nd7 Nc2 Ne7 g8N Rb8 g7 Ng6 Bd3 Nb6 a8B+ Rb7 a7 Nc4 Ra2 Na3 Na1 Qe7 Rg1 h1Q+ Rg2 Qg1 Bc2 Qe1 Rd2 Qc7 Rd3 Qd2 Qh1 Qc6 Qh2 Rb6 Qh5 Qe1 Rd1 Ba6 Rd2 Bf1 Rd1 Ne7 g6+ Nf5 Rd3 e2 Rd2 Nb5 Ra6 Na3 Rd1 Qh4 Rd2 Qe7 Rd3 Qeb7 Rd1 Qa4 Rd2 Kc6 Ke4 f3 Rd1 f2 Rd2 Ne3 Rd1 Nec4 d5+ Kd7 Ne7 Ne3+ Rd4 Ng2 g8Q Rh6 g7 Rh7 Qg6 Rh3 Qh8 Qb8 g8Q Qd8 Nec8 Qg5 Qhh5 Qd2 Nb7 Kc7 d6+ Kc6 d7 Kb5 d8Q Rh2 Ke5 Rh3 Rd5 Kc4 Qg8e8 Qa5 Ne7 Qa4 Bb1 Qa5 Ke4 Qa4 Nc2 Kb3+ Rd4 Nb5 Na1+ Ka3 Bc2 Ka2 Nd6 Na3 Bd1 Kb1 Qc8 Qb4 Qeh8 Qa5 Rd3 Qb4+ Qd4 Qa4 Bc2+ Ka2 Nc4 Nh4 Ng8 Rc6 Qdd7 Rb6 Bd5 Ng2 Qde8 Rb3 a8Q Rb6 Bd1 Kb1 Qcd7 Rd6 Qac8 Rb6 Bc6 Nf4 Ba8 Bg2+ Qf3 f1Q Bc2+ Ka2 Qdg7 Qf2 Qh8 Bf1 Qfh5 Ng2 Rd8 Qf7 Qd4 Qg7 Nd6 Qa7 Bb3+ Kb1 Ne7 Nc4 Bd1 Na3 Bc2+
Q1k2N1N/1R5B/2pr3B/1bKp3n/b2Qp1R1/3QQpbq/r2P4/qR3NQ1 b - - 0 1 illegal: No proof kernel
1N3rB1/nQ1rp1R1/2R3B1/1R1BPbk1/p1KQ4/b1N2B2/ppr2B2/1rq1N3 b - - 0 1 illegal: Other
2r1NRB1/1QQp1KNk/3p2Nq/3NB2B/2b1r3/2pPQn2/6pn/nN2Rn2 b - - 0 1 illegal: No possible last move
bBR2r2/2pR2b1/nk1prnQ1/2R4N/B2PB1p1/3R1N1R/2n1p1n1/1K1Q1N2 b - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 c4 h5 g4 d6 gxh5 Qd7 Bh3 axb4 Bf1 b3 Ne2 b4 Ng1 Qb5 cxb5 Ra7 Ne2 Ra5 Ng1 Ra8 f4 Kd7 h4 e5 a4 g5 h6 b2 h7 b3 b6 Kc6 a5 g4 a6 e4 h5 e3 h6 Be7 b7 Bf8 f6 Nd7 b8R Nc5 f7 Bf5 a7 Be4 f5 Ne6 f6 Ng5 Rb5 Bd5 Rh3 Re8 a8B+ Kd7 Nf3 Rd8 Rc5 Ne4 Ra3 Ne7 Bb5+ Nc6 Ba4 Bg7 f8N+ Kc8 f7 e2 Ne6 Na5 f8R Nf6 Rf7 Rhf8 h8R Nc6 h7 Ne4 Nf4 Rde8 Rd7 Re6 Nh5 Nb4 d4 Kb8 Nbd2 Ka7 Nf1 Nf6 Kd2 Na6 Rg8 Bb7 h8Q Kb6 Qh7 b1N+ Kd3 b2 Kc2 Nc3 Qg6 Ncd5 Rd3 b1N Ba3 Nf4 Bb4 Rb8 Rc8 Na3+ Kc1 Nc2 Kb1 Bd5 Bb7 Ng2 Ba8 Bc4 Be4 Bd5 Ba5+ Kb7 Bb6 Bc6 Rg8 Rf8 Ba7 Bd5 Bb8 Kb6 Rh8 Ba8 Rg8 Rf7 Re8 Rf8 Rc8
r3rbR1/p1N3Q1/Kp1pk1NQ/n3N3/PBB2R1b/2B1p3/1Np4R/2N2n1q b - - 0 1 illegal: No proof kernel
2NQq3/1BN1R3/5N1R/qB1N1q1N/r1NqN1P1/4n3/1b1bnb2/k3rB1K b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 g4 Qf6 b3 Kd7 Bb2 Qd6 Bd4 Qb4 Be3 Ke8 Bf4 gxf4 h3 Qe7 g5 Bg4 hxg4 Qd8 Kf2 Kd7 Kg2 a5 d4 c5 e4 h5 e6+ Kd6 e5+ Kc7 d6+ Kb6 d7 f5 g6 h4 g7 c4 b4 c3 d5 a4 d6 a3 e7 c2 e8B c1B e6 a2 e7 Ra6 Nh3 Nc6 Ng5 Ra8 Nc3 Nh6 g8N Bd2 Nge4 Nd4 Ngf6 Ra4 Nh5 h3+ Kg1 Qb8 d8N f3 d7 f4 Ne6 Nhf5 d8N Ne3 Nf7 f2+ Kh2 f3+ Ne5 Qd8 Nc7 Ne2 Bc6 Qd4 e8B Bc5 Bb7 Rh7 Rc1 a1B Rb1 Re7 N3d5+ Ka7 Nc4 Bb2 Bg2 f1Q b6+ Kb8 b5 f2 Ra1 Qe1 Bd7 f1Q Rb1 Qf5 Bf1 Re6 Ra1 Rb4 Ra7 Ra4 Bdc6 Nf4 Kg1 Re8 Rh2 Ne2+ Kh1 Re7 Ba8 Kc8 b7+ Kd8 b8N Re8 Rg2 h2 b6 Re5 b7 Bb6 Ndf4 Ke7 Nfd5+ Kf7 Nd7 Re7 Ne8 Ke6 b8N Bc5 N7f6 Bb6 Na5 Ke5 Bb5 Qg3 Nh7 Qc3 Nb7 Nc2 Nhf4 Qgd3 Nhf6 Kd4 Nec5 Qa5 Nb4 Kc3 Nbd6 Ng1 N8c6 Be1 Nc8 Ba3 Ne5 Kb2 Rg3 Qc3 Qd8 Bd2 Nbd5 Ka1 Kg2 Bb2 Nc4 Re1 Rh3 Ne2 Nce4 Bf2 Rh6 Qd3 Rd7 Qd4 Nec7 Ne3+ Kf3 Ng2 Bb7 h1Q Re7 Qh4 Re5 Ne3 Re7 Nc2 Kg2 Qhh5 Ned6 Qf7 Nde4 Qe8 Kh1 Ne3 N4h5
1bBqB2r/7B/2nB2BB/2N3q1/bb1R1P2/NQNK3R/q4Bk1/r1q1q3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 f5 e4 fxe4 c4 a4 cxd5 Nc6 Bd3 Qd7 Bf1 Na5 bxa5 Qd8 Ke2 Kd7 d4 Kd6 g4 c5 g6 h5 a6 e5 b6 a3 g5 h4 b7 a2 b8B+ Qc7 a7 h3 g7 e3 g6 c4 Na3 e4 Qb3 h2 Bh3 Bb7 Bc8 Nh6 g8B c3 g7 c2 Bh7 Ng8 Bg6 Ne7 g8B Nc6 B8h7 Bg7 Bd2 Be5 Rd1 a1Q f4 c1Q Be1 Rd8 Bf2 Rh8 Rd3 Qa2+ Rd2 Ke7 d6+ Kf6 d7 Qd8 d5 Qc5 d6 Qd5 Ke1 e2 Rd4 Ba6 Bc7 Bb5 Be8 Ba4 Bb8 Qa1+ Kd2 e3+ Kd3 e1B Ne2 Bb4 Nc3 e2 Bc7 e1Q Beg6 Rb8 a8B Qa2 Bab7 Ke6 Ba6 Ra8 Bb5 Qg5 d8N+ Kf6 d7 Ra5 Rf1 h1Q Ne6 Qc1 Rd1 Qe1 Nc5 Qg8 Bd6 Qd8 Bf8 Bb8 Bd6 Qee5 Rh1 Qee1 Rh3 Ra6 Bc4 Ra5 Be8 Ra7 Bcf7 Ra6 Bhg8 Kf5 Bh7+ Kg4 Bfg6 Ra5 Rh5 Kf3 Rh2 Qc7 Rh3+ Kg2 d8B Ra7 B8e7 Qd8 Bf8 Qaa1 Qg8 Bb3 Nc4 Ra3 Qe6 Ba4 Bh6 Qab2 Qg8 Ra1 Na3 Qa2 Qb3
7r/nN1K1N1b/3b1N1R/6Nb/1B1N1rB1/1b2N1rN/3bqP1k/R4QrR b - - 0 1 illegal: No possible last move
1N1B2B1/Q1Bq4/B2N4/3b1p2/q1rb2rq/R1bB1qkN/K3PB1R/3B3n b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Nc6 Kf2 Nf6 Ke1 Na5 bxa5 Ng8 d4 Ke7 Kd2 Kd6 Kc3 c5 Kb2 f5 g4 h5 b6 a3+ Ka2 f3 g6 h4 b7 c4 b8N f2 g5 h3 a6 h2 g7 c3 a7 c2 g6 Nf6 g8B Nd7 g7 Qe8 Be3 c1Q Nh3 Rh4 Nc3 Nc5 Bg2 f1Q Bf2 Ne4 Qa4 Ng3 Be4 Rg4 Bd3 Qf4 Qa5 Be6 Ne4+ Ke7 Ba6 Qd7 Nd6 Kf6 Bf7 Qf3 g8B Bg7 Be8 Qd1 Qb6 Qe7 Ba4 Qd7 Bb3 Qa4 Qc7 Qdd3 Bd1 Kg6 Qd7 Kh5 Nb7 Kh4 Nc6 Bh6 Nf4 Qc3 Kb1 Qfe3 d6 Bb3 d5 Rb8 a8B Rc8 Nb8 Qed2 Qe7+ Qf6 d7 Bg7 d6 Bf7 Ra2 Rc4 Nh3 Qfg5 Qe3 Qd5 Qa7 Bd4 d8B Qe7 d7 Qf3 Nd6 Be6 Be4 Bd5 Bc7 Qh7 Rf1 h1Q d8B+ Qe7 Ng5 Qed7 Bd3 Qh3 Bg1 Nh1 Rf2 Kg3 Rh2 Qh8 Nh3 Qh4 Rb2 a2+ Ka1 Rc3 Rb3 Rc5+ Rc3 Rc4 Kb2 a1B+ Kb1 Rg7 Ra3 Rg4 Ka2 Bac3 Bf2+
B2K4/N3n1B1/3N1Rn1/pB1n1nk1/1B3r1B/1nB3nQ/b1P3Rr/r5BR b - - 0 1 illegal: No possible last move
bRNR3B/1BKP1br1/pBR1r2p/1N3r1r/2R2n2/1r6/1RQ4R/1R3k1n b - - 0 1 illegal: No possible last move, all moves rejected
6KR/PBb2nNR/1b1r2q1/R1p3q1/2N3bQ/4p1k1/3B2B1/BbBBb1B1 b - - 0 1 legal: proof: g4 a5 b4 b5 bxa5 f5 gxf5 d5 c4 g5 f4 g4 e4 dxe4 h4 Nc6 f6 Nb4 f5 Nd5 cxd5 Nh6 Kf2 Rg8 Ke1 Rg5 hxg5 Ng8 Na3 Rb8 Nb1 Ba6 Ke2 Qd7 Rh4 Bg7 Rh1 Nh6 Rh4 Kf7 Rh3 Rh8 Rb3 Qd8 Ke1 Bf8 Rh3 Bc8 Rh4 Ng8 Rh1 Ke8 Kf2 Kd7 Kg3 Kd6 Kh4 Ke5 Kh5 Kf4 a4 e5 d4+ e3 a6 h6 Kg6 h5 Kf7 e4 a7 b4 a8B h4 a5 b3 a6 c6 g6 h3 d6 b2 g7 h2 d5 g3 a7 g2 d7 Qc7 d6 Rh7 Nh3+ Kg3 Nf4 g1B Ra5 e2 Ne6 e1B Nd2 b1B Bb7 Bc2 Bg2 Bb1 Qg4+ Kf2 Qh4+ Ke2 Nc4 Qb6 d8R Qa6 d7 Qb6 Re8 Qd4 d8B Qe5 Bb6 Bgc5 Bd2 Bcd6 Bg1 e3 Rd8 Rh6 Re8 Ne7 g8B Ng6 Ng7 Bc7 Bh7 Bd7 Kg8 Bc5 f7 Nh8 f8B B5b6 f6 Bg4 f7 Rd6 Bc2 Qg5 Be7 Qg6 f8B Nf7 Bf6 c5 Bb2 Qg5 Bbc1 Qg6 Be7 Qg5 Bf6 Qg6 Bf2 Qg5 Ba1 Qg6 Rf1 h1Q Bg1 Qh3 Rf5 Qg3 Rh5 Qe5 Rh7 Qd5 Bh3 Kf3 Bd1+ Kf4 Bg2 Qdg5 Re5 Qe7 Reh5 Qeg5 Qh1 Kg3 Rh8 Qc2 R5h7 Qcg6 Qh4+
4Bqq1/1r2r1B1/Kp4pR/B4BN1/PBkbB2N/R2Q2Bq/1nr2N2/1r6 b - - 0 1 legal: proof: c4 a5 h4 d5 cxd5 e5 b4 axb4 g4 f5 f4 Nc6 fxe5 f4 h5 Bf5 gxf5 g6 h6 Nd4 Bb2 Ne6 Bc1 Ng7 hxg7 Kd7 Rh3 Ke7 Rh1 Ke8 e4 Kf7 Ke2 h5 Kd3 c5 Kc4 b3 Kb5 f3 a4 f2 d4 c4 d6 c3 d7 b2 e6+ Kf6 e5+ Ke7 d5 h4 Nh3 c2 Bd3 f1R Bh6 c1Q Be4 Rg1 Nd2 Qc3 Nf2 h3 Nf3 h2 Ra3 Ra7 Nh4 Ra6 Qd3 Nf6 g8B Ra1 Bg7 Qa8 Bf7 Ng4 f6+ Kd8 e7+ Kc7 e8B Rc6 e6 Kd6 d8B Ne5 e7 Re1 Be6 Rh7 f7 Nc4 Bh3 Qf6 Ba5 b6 Bhf5 Qd8 Ka6 Kc5 d6 b1R d7 Nb2 Be6 Qb8 d8B Rc7 B6d7 Rec1 Bg4 Rb7 Bc7 Rc2 Bgf5 Qe6 Bg3 Qed6 Bf6 Bg7 f8B Qbd8 Bfc3 Bd4 Bg7 Qc8 B8c6 Qd5 e8N Qg8 Nd6 Qcf8 Be8 Re7 Nf7 Rb7 Rf1 h1Q Ng5 Qh3 Rh1 Re7 Qf3 Kc4 Bcb4 Qg4 Ng2 Rb7 Rh6 Qh3 Nh4 Re7 Bf6 Rhf7 Bg7 Rb7 Qe3 Rfe7 Qd3+
3BB3/1Rb1Nn1R/R1q2Q2/4Rp2/2n2NbP/1kBn1qRp/3R2pR/1K2n3 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 e5 axb5 exf4 g3 d5 cxd5 a6 Bg2 h4 Bf1 h3 Nc3 g5 Ne4 a5 Nc3 g4 Nb1 Rh4 gxh4 g3 Qc2 g2 Qd1 Ra6 Nf3 Rg6 Ng1 Rg3 hxg3 Qe7 Na3 Qd6 Nb1 Qd8 e4 Kd7 d4 Kd6 Kd2 c5 Kc2 f5 b4 a4 g4 f3 e5+ Kd7 g5 c4 g6 c3 e6+ Kd6 g7 f2 b6 a3 b7 a2 b5 Nf6 g8R Nc6 b8R Be7 b6 Qc7 b7 Qb6 Rh2 Na7 Rg3 Qa5 Bb2 Qd8 Bb5 f1N Ne2 Qb6 Nf4 Nh7 Be8 Bd8 e7 Ng5 Qe1 Nc6 Qe6+ Kc7 Qf6 Ne5 Ra8 Nd3 b8R Nd2 Ra7+ Qb7 d6+ Kb6 d5 Kc5 d7 Kb4 d6 Bc7 d8R Nc4 d7 Nf7 Ra6 Ne1+ Kc1 c2 Nc3 Qb6 Rb7 Kb3 Rb1 a1Q Ncd5+ Nf3 Rba7 Qa4 Rb7 Qc6 Rba1 Qbb5 Bc3 Ne1 R1a4 Nd2 Rd4 Nc4 Rd2 Qbb6 Rba7 Bb7 Rb8 Qb4 d8B Ba8 Rbb7 Qbb5 Nb6 Qf3 Nc8 Qb6 Bb5 Qd6 e8R Qdc6 Ne7 Qe6 Rbb6 Be4 Rbb7 Qc6 Nc8 Bd3 Re5 Be2 Ne7 Qf1 Rd6 Bg4 Rdd5 Qf3 Rd2 Qd6 Be8+ Qb6 Bb4 Qc6 Bc3+ Bb6 Nc8 Ng5 Rh7 Nf7 Ne7 Ba5 Rf2 Bc7 Rb7+ Nb6 Kd2 c1N Rfe2 Ncd3 Rf2 Nb4 Kc1 Nc4 Rc2 Ne3 Rd2 Nc4 Rba7 Nbd3+ Kb1 Bb6 Rc7 Ba5 Rca7 Bc7 Rb7+
1n1N1Qr1/R5NB/2NB4/1BBqrrn1/1n3Bk1/b5PB/5KB1/1qq1R1rb b - - 0 1 illegal: No possible last move
b3k1r1/RRrNb3/P1pNn2r/5R2/2K2RqB/3R1Q1n/n4R2/Rq3BbN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 e5 Kd3 b5 a4 g5 h4 c6 f4 b3 d6 g4 f6 b2 d7+ Kf7 a5 g3 h6 b4 h5 b3 f5 e4+ Kc4 g2 d4 e3 d5 e2 h7 e1R Nc3 b1Q h6 b2 d6 Be7 a6 Bb7 Nb5 Re3 Nh3 g1B Rh2 Rf3 Nf2 Qc8 d8R Bf8 d7 Bg7 Bg5 Rg3 Bh4 Rb3 Qf3 Qe1 Nh1 b1N Rf2 Bf8 Re8 Bd6 d8R Nc3 Re4 Qb1 Rf4 Bc5 Rd1 Nd7 Rd3 Kf8 f7 Na2 Re3 Ngf6 Rd3 Ke7 f8R Bb4 Rf7+ Kd8 Re7 Ne4 f6 Ng5 f7 Nh3 f8N Ba3 Rh2 Rb2 Rf2 Re2 Ref7+ Re7 R7f6 Bd6 Rf7 Nc5 R7f6 Qg4 Rf5 Rg8 h8R Ra7 Rh7 Ke8 Rg7 Re6 h7 Ba8 h8R Rd7 Rhh7 Rh6 Rgf7 Ne6 Rhg7 Rd8 Ra7 Rc8 Rgb7 Rc7 Nd7 Be7 Nd6+
3b4/rr3P1N/4Rqk1/2bRN3/1qb2BK1/2Nnpn1N/2Q1N1nR/2N1NB1r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 g4 c5 d4 a5 b4 h5 b6 c4 b5 c3 f6 a4 g5 c2 d6 a3 d5 h3 b7 a2 b6 h4 d7 h2 d6 e4+ Kg4 h3 f4 Qc7 f5 Bg7 d8N+ Kf8 g6 Rh6 d7 Rh8 f7 Ra6 Nc3 Bd4 g7+ Ke7 f8N Kf6 Nc6 Ra4 d8R Qe5 Ng6 Ne7 Bf4 c1N Rd5 e3 Nge2 Ra7 Na5 Be6 Qc2 Rh7 Nb3 Nbc6 b8N Nd3 b7 Bc5 Na6 Nd4 b8N Nf3 g8N+ Kf7 Rb1 a1B Nc6 Qf6 Nbc1 Rb7 Rb5 Kg7 Re5 Bc4 Re6 Nd5 Nce5 Ra7 Nb4 Rb7 Rg1 h1Q Rg2 h2 Ra5 Qg1 Rb5 h1R Ra5 Qe7 Nf6 Qf2 Rh2 Bb2 Qb1 Qd6 Nc2 Qb6 Ne1 Qb4 Qc2 Ra7 Bg5 N5f4 Rb5 Ng2 Ngf4 Ba3 Nh3 Bb6 Rd5 Bd8 Bh4 Kh6 Bg3 Rhb7 Nh7+ Kg7 f6+ Kh6 Nd7 Kg6 Be5 Qa4 Bf4 Bc5 Qb2 Qb4 f7+ Kg7 Qc2 Qh4+ Kf5 Qf6+ Kg4 Kg6 Ne5+
1RNn2bb/1q1pBq2/2nRr3/BQ2N2n/2b4B/6BB/1KPrN2B/5Bqk b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 e5 g4 a5 f4 h5 g6+ Kf6 b6 h4 b7 d3 Kc3 h3 g7 a4 b5 e4 b6 d2 Kb2 e3 Nc3 e2 Rb1 e1Q Qe2 d1Q Nf3 h2 Bd2 Qe8 Ne5 Nc6 b8B Ba6 b7 Nd8 Qb5 Qe4 Ne2 Qf7 Ba5 Qg2 Rg1 h1B Bd6 Qgd5 b8B Rh2 Rg3 Bg2 Rd3 Qb7 Bdc7 Bd5 g5+ Ke7 f6+ Ke6 g6 Kf5 Rd2 Ke4 f5 Bc5 Bh3 Qg1 Bf1 Ba2 Rd6 Ke3 Bh3 Kf2 Bf1 Nh6 g8B Ng4 g7 a3+ Ka1 Be6 Rb4 a2 Kb2 a1N Bh3 Qe8 f7 Nf6 f8B Nh5 f6 Qf7 Be7 Nb3 Bh7 Bc4 g8N Nd4 Bd3 N4c6 Rb3 Be3 Rb4 Bh6 Rb3 Bg7 Rb4 Qe8 f7 Bh8 f8B Qf7 Bg7 Rg2 Bgf6 Kf1 Bh4 Bb3 Qd5 Bac4 Qb5 Ra6 Bg3 Ne6 Bcd8 Rb6 Beh4 Ba2 Bdg5 Ned8 Ne7 Bab3 Nc8 Ra6 Bg4 Rh2 Be7 Kg2 Bh3+ Kh1 Nc1 Rd2 Bdf1 Qf6 Bbc7 Bg8 Bh2 Bbc4 Ne2 Qf7 Qc5 Qa7 Rb8 Qb7+ Qb5 Na7 Rd3 Re6 Rd6 Nac6 Bcb6 Qf6 Bbf2 Qf7 Bfg3
nN2q3/RRr2R2/3rn1nr/p1kP2N1/4RR2/1b1Bb1Qn/1B1b2KR/2R2N2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 d4 a5 g5 e5 g6 h3 g7 e4 b6 h4 b7 h2 b5 c4 f6 e3+ Kg2 c3 f5 e2 b6 e1R f7 c2 f6 Qe8 Bb2 c1B Qb3 Rh6 Bd3 Bd2 Nf3 Re6 Ng5 Ne7 g8R Na6 b8N Ng6 b7 Ra7 Rg7 Nc7 Ra4 Be3 Nd2 Na8 Rc1 h1N Nf1 Nf2 Qc3 Be7 f8R Ne4 f7 Nc5 Rh8 Rf6 f8R Ne6 Rff7 Bd7 Rc4 Ba4 Qe1 Bb3 Qg3+ Bf4 Rhf8 Bd8 R4c2 Bb6 Re2 Bc5 Re5 Bd2 Re4+ Ne5 Rh7 Rfg6 Rff4 Bb6 R8f7 h3+ Kf2 h2 Kg2 h1N Rh8 Nf2 Rhh7 Rh1 Rh2 Rg7 Na6 Rh7 b8R Rd7 Rb7 Nh3 Nb8 Rh6 Ne3 Rd1 Nf1 Rc7 Ra7 Rc8 Rfb7 Bc5 Rff7 Rc7 Rff4 Ke7 d6+ Kd8 d7 Ke7 d8R Be1 Qg4 Ng6 Bb1 Rd3 Rd5 Bd2 Rdf5 Kd6 Rf6 Bcb4 Qh4 Be3 Rf7 Bbd2 Qe1 Rdc3 d5 R3c6 Bc2 Kc5 Qg3 Rd6 Bd3+
b1NN2kn/Nr5q/pN1bQRR1/1r2N1bN/3nrB2/B3NP2/r6n/1B5K b - - 0 1 illegal: No possible last move
3kN2R/2rbp2q/n2B2bB/KBr1PQn1/R3Nq2/N1N2NN1/3N1b1q/7b b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 Qd7 c4 Qh3 cxd5 Qxh2 e4 c5 b4 a5 g4 h5 d4 f5 d6 a4 e5 h4 b6 a3 d7+ Kd8 g6 c4 b5 f4 d5 f3 b7 h3 g5 a2 g7 c3 b6 c2 g6 f2+ Kd2 Nc6 Kc3 Na7 Kb4 Nf6 g8N Nb5 b8N Ra6 b7 Kc7 d8N Ra7 d6+ Kb6 d7 Kc7 g7 Rh7 Bh6 c1Q Ne6+ Kb6 d8N Bd7 Nd4 Kc7 Nd8c6 Qhf4 Qf3 h2 Nc3 Qg3 Nb3 Rh8 Nge2 Ne4 Ncd4 Kd8 Nd2 Ng5 Qf5 Nc7 Nc2 Na6+ Ka5 Qf4 Ng3 Qb2 Be2 f1B Bb5 Bd3 Nf6 Qb1 g8N Qg1 Rd1 a1Q+ Na3 Qb1 Ne8 Bg7 Re1 Bf6 Re4 Qg2 Ra4 Be4 Rf1 h1B Rf2 Qh3 Rh2 Qh5 Rh4 Qg1 Rh3 Qh2 Rh4 Qf7 Rh5 Qh7 Rh3 Bg7 Ngf6 Bb1 Nfe4 Bf6 Nf3 Bc2 Ned2 Rg8 Qg4 Bg6 Qf5 Be6 Nd7 Rf8 b8B Rc7 Nb6 Bd7 Nbd5 Rc5 Bc7+ Kc8 Bg7 Ne4 Ngf1 Qg8 Rh8 Qgh7 Bd6 Bh4 Nef6 Ng5 Nce4 Bf2 Nfg3 Rg8 Bh6 Rf8 Ne8 Rf6 Bb8 Kd8 Ndc3 Rfc6 Bd6 Rc8 Rb4 R8c7 Ra4
1Q3K1n/R4B1r/1NN5/Nk1b1N1N/6Bn/2N1p2b/rp1N1RPB/2bnr1q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 b5 Kd4 h5 Kc5 e5+ d6 b3 d4 c6 a4 b4 f4 h4 d5 b2 a5 b3 g6 e4 g7 h3 a6 h2 a7 Rh3 f6 Rh5 f5 Be7 f7 Ba6 f8N+ Kc8 f6 Kb7 f7 Bf6 d7 Ne7 Kd6 Kb6 g8B c5 Nf3 c4 Nfd2 c3 Ng6 c2 f8N Be2 Ne6 Rh3 Nc3 b1B Ngf4 b2 Ng7 Rh7 Nfh5 Nbc6 Bf7 Bf3 Be2 Ng6 Rf1 h1N Rf2 Bg5 Nf5 Nce7 Ra2 Qh8 d8N Nh4 Nc6 Neg6 Na5 Qd4 Kd7 Bg4 d6 Bh3 Bg4 Nh8 Ra1 Bh6 Ke7 Ba2 d7 Bd5 d8N Bf4 Kf8 Kc5 Rf1 Qg1 Rf2 Be3 Qf3 Kb6 Qg3 Ka6 Rf3 Nf2 Qb8 Nd1 Rf2 Bg5 Ndc6 Be3 Nf3 Bf4 Be3 c1R Nd2 Bg5 Bf4 Rb1 Bd6 Bf4 Nf3 Bc1 Bh2 e3 Ra3 Ra1 Nd2 Ra2 Qe8 Rd8 a8N Rd7 Nb6 Rd6 Nce4 Kb5 Qb8 Rf6 Nb7 Rfh6 Ra7 Rd6 Nba5 Rf6 Nfg3 Rf4 Nf5 Rf3 Re2 Rf1 Rf2 Re1 Nc3+
N1BbR1Bq/2B1r2n/B3R1KP/2k1q1n1/q1R1nr2/2pB1N2/2p4B/Q3B2b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 Kd7 Ke3 Kc6 Ke4 b5 d4 g5 a4 g4 h4 c3 a6 f6 d5+ Kc5 a5 g3 a7 g2 d6 c6 d7 c2 Kf5 b4 e4 b3 a6 b2 e6 Nh6+ Kg6 f5 e5 f4 e7 f3 e8B f2 e6 Rh7 e7 Ng8 h6 Kb4 h5 c5 Na3 b1Q Bf7 c4 e8R c3 Rh4+ Kc5 Bd3 f1Q Nf3 g1N Nb5 Kc6 Rc4+ Bc5 Bd2 Qe1 Nc7 Qe2 Be1 Nf6 Bg8 Re7 h7 Nh3 h8B Ne4 h6 Qb3 Be5 Bb7 Bh2 Qa4 Ra2 Kb6 Qa1 Nhg5 Ra3 Qc8 d8B Nd7 Ra2 Rb8 a8B Ndf6 a7 Nfh7 Ra3 Bc6 Bb7 Bf2 a8B Bh4 Ba6 Bd5 Rd4 Kc5 B8b7 Qe3 Ra2 Qf4 Ra3 Qe5 Na8 Bc6 Bc7 Qd8 Bc8 Rb4 Bcb7 Qb8 Bc8 Qh8 Ba5 Qbe5 Bc7 Nd2 Rb3 Rg7+ Kh5 Nh3+ Ng5 Bh1 Rd6 Rf4 Rde6 Ne4 Rb4 Rgf7 Kg6 Rd7 Nf3 Bd8 Bac4 Re7 B4a6 N3g5 Rc4+
3qr1bn/2N2kN1/2K1p2N/1NbQ4/Rr3P2/6Nb/1p2r2B/NR1nNBRq b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 c5 Kf3 g5 Ke4 b5 d4 c4 h4 b3 a4 g4 d6 g3 Kd5 b4 a5 c3 h6 g2 h7 b2 f6 b3 h5 c2 h6 Kf7 a6 Qd7 a7 Qa4 d7 Qa2 d8N+ Kg6 f7 Kf6 Ne6 Nd7 Na3 b1B Nb5 b2+ Kc6 Ba6 d5 Qc4+ Nc5 Re8 a8R Qe2 d6 Nb6 d7 Qe5 d8N Nd5 Nb3 Qh5 Ne6 Qe2 Ng7 Qe4 Ne2 g1R Bf4 Rg2 Ng3 Bc8 Rg1 Qd4 R8a4 Ba2 Rb1 Ne3 Na1 Qd8 Qd5 Nd1 f3 Re2 Bc7 Kg6 Be5 Nf6 Bc7 Nd7 Bb8 Rg8 h8N+ Kf6 h7 Bc4 Bd6 c1Q Ng6 Rh8 Nh4 Ne5+ Kc5 Be6 Ng2 Ng6 Ne1 Bh3 Kc6 Rg8 Bc7 Nh8 Qe5+ Kg6 Rg2 Qh6 N7h5 Qc8 Nh1+ Bg4 Rg1 Qd8 Qd4 Be6 Qd5 Rg7 Nf6 Qh2 Nh5 Qg2 Bf4 Bh3 Bh2 Rg8 N1g3 Qh1 Ng7 Kf6 N7f5 Rg4 Ng7 Ng6 h8N Rge4 f4 Rb4 N7f5 Bg7 f8N Bg8 Ne6 Bf8 Nf7 Nh8 Nec7 e6 N7h6 Bc5 Ng7 Kg6 Ng4 Kf7 Nh6+
2q1RK2/R1R5/1P2p3/Np2r3/1N2b1B1/BRnRQ1nn/R1q4r/bq1kN1R1 b - - 0 1 illegal: No possible last move
BbN5/q1kB2Q1/1p1rBB2/nN2P3/1pbBrB2/3n2B1/1R1qbN2/K1R1r3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 Kc2 f5 Kb2 g5 h4 b6 a4 g4 e4 g3 a5 f4 e6+ Kc7 a6 c4 d6+ Kc6 d7 f3 a7 f2 e7 g2 e8B Ne7 h6 Ng6 h7 Qc7 d8N+ Kd6 d5 Nf4 h5 Be6 h6 Bg8 Nc3 Qc6 Bd7 Qc8 Nc6 Bg7 Rh2 Qe8 Qd4 Ne2 Bf4+ Qe5 Nh3 g1R Rc1 Kc7 Ne7 Nc6 Ka1 Re8 a8B Na5 Nc8 Rh1 Bg2 f1B Nf2 Bf7 Bg3 Nf4 Bgh3 Qe7 Bhe6 Be2 Rg2 Rhf8 h8B Be5 h7 Re1 Bf6 Nd3 h8B Bg8 Bg5 Rf6 B5f4 Rg6 Rh2 Bd6 Qg7 Bf7 Nb1 c3 Na3 c2 Nb5+ Kb8 Bdc6 Qa7 Bcd7 Bc7 d6 Bg8 Bf5 Bc4 Bde6 Rh6 d7 Bd6 d8B Rf6 Rb1 c1Q Rg2 Qd1 Rc1 Qd2 Bd7 Rh6 Bf6 Re6 Bd4 Rh4 e5 Rg6 Bh6 Re4 Bhf4 Rh6 Bfe6 Rf6 Nc3 Kc7 Rh2 Kd8 Nb5 Bb8 Bg4 Rc6 Bge6 Rd6 Ng4 Bf1 Qf7 Qc3+ Rb2 Be2 Nf2 Qd2 Nc3 Qe3 Bf6+ Kc7 Qg7 Qd2 Nb5#
4KNR1/3Rp1q1/2n3Rb/Pqr1RkN1/1nbRR1R1/r1pq4/N1nB2B1/4Q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Ke4 g5 f4 c5 d4 b5 a4 g4 h4 g3 d6 c4 Kd5 b3 d7 b2 a5 b4 h6 b3 h7 g2 h5 Ra7 h6 Na6 Kc6 Bg7 d5 Qe8 d6 Ra8 Bd2 Qf7 d8R Qf8 d7 Nc5 Nf3 g1Q Nc3 b1Q Rh4 b2 Na2 c3 Rg4 Qh1 Bg2 Kf7 f6 Ke6 f7 Qh5 f5+ Kf6 Qh1 Qd3 Re1 b1N Ree4 Qg5 Qe1 Ba6 Kc7 Qe8 f8R+ Qf7 Kc6 Rb8 Rfe8 Qfh5 Kc7 Bc4 Kc6 Kf7 f6 Kg6 f7 Nf6 Rf8 Rg8 h8R Ne6 h7 Nd5 Rfe8 Kf6 Rf8 Qgh6 Rfe8 Qe5 Ng5 Kf5 Rf8 Na3 Rfe8 Bf6 Rf8 Rg6 Rhg8 Bg7 h8R Rf6 Rh7 Qg6 Rh1 Nc2 Rh6 Qh7 Rg6 Rb3 Rfe8 Ra3 f8N Bh6 Rc8 Bb3 d8R Qg7 Kd7 Bc4 Rc6 Ndb4+ Rd6 Qc5 Rdd4 Qb6 Rb8 Qc5 Rb6 Nd8 Ra6 Re6 Rc6 Re5 Rce6 Ndc6 Rd8 Rd5+ Ke8 Qb5 Rd7 Rc5 R6e5+
1k1N1B2/rn3NBp/1B1n1n1Q/r2B3n/1K1N2b1/2BqR1Bp/7P/nb1BR3 b - - 0 1 illegal: No proof kernel
4nBBr/3b4/2nrBBP1/3pN1q1/2B1N3/1KprQ2r/B4bnN/B2RR1k1 b - - 0 1 illegal: No proof kernel
bB5B/1B3k1n/BNn1P3/1pr1B3/n1RN2R1/1R1Q3b/2B1Br1p/Kbb2q2 b - - 0 1 illegal: No possible last move, all moves rejected
1n2b2N/B1N1kb1Q/4pb1B/3R2Nq/6r1/p2NNN1n/4BPNr/RnK3n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 h5 Kd2 c5 b4 a5 g4 a4 g5 c4 b6 e6 g6 h3 f6 h4 g7 h2 d6 a3 d7+ Kf7 b5 h3 d5 Ne7 g8N Rh7 d6 Ng6 b7 Ne5 b6 Rh6 Qc2 Ra7 Nc3 Qc7 d8N+ Ke8 f7+ Kd7 Nce2 Nd3 Nc6 Ra4 Nf3 Be7 Nb4 Qc5 Nf4 Bf6 Ng2 Nf4 Be2 Qh5 Rd1 h1B Ne7 h2 Qh7 Nh3 Ned5 c3+ Kc2 Kd8 f8N Bd7 Nd3 Be8 d7 Bf7 Nde3 Ke7 d8N Rh4 Bd2 Rg4 Kc1 c2 Ng6+ Kd7 Nh8 Ke7 Ngh4 Bg2 Nf1 h1N Ne3 Bf1 Nhg2 Ng3 Nc4 Ne4 Nce3 Nc6 b8N Nc3 b7 Nb1 Na6 Nb8 Nc7 Kd6 Nc6 Kd7 Ncd4 Ke7 Nge1 Bg2 Ng5 Bc6 Ndf3 Be8 Bf1 Rg2 Be2 Rh2 N1g2 Rg6 Ne4 Rg4 Neg5 Kd7 Bb4 Kd8 Bf8 Kd7 Bh6 Ke7 Rd2 Kd8 Nde1+ Rd4 Ne5 Nc6 b8B Ke7 Ba7 Rg4 Rd5 Nb8 N1d3 Nc3 Kd2 c1N Bd1 N1e2 Nef3 Neg1 Kc1 Nb1 Be2
B7/BP3pr1/K2n1RkB/pB2br1r/Rr2bqn1/1B3Nb1/7R/B3BNQ1 b - - 0 1 illegal: No possible last move, all moves rejected
nB3R2/Np3qb1/2B2NR1/pKQ2RPN/r5Rn/2r1r2r/2R3bk/2R1R1n1 b - - 0 1 illegal: No proof kernel
N1k2Bbb/r1r1QNN1/6RN/q1N4p/qr2n2B/P1p1N3/r5B1/Rn1N2K1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kd7 f4 c5 Kf2 b5 d4 e5 f6 h5 g6 c4 f7 e4 d6 b3 f5 c3 a3 b2 d5 b4 f6 b3 g7 Be7 f8N+ Ke8 d7+ Kf7 d6 Rh7 g5 Qe8 Nh3 e3+ Kg1 e2 Nd2 e1R Ne6 b1Q d8N+ Kg6 f7 Kf5 f8B b2 g6 Qa2 d7 b1R Qe2 Rb7 Ne4 Qd5 N4c5 Nf6 g8N Rb4 g7 Nc6 Nf7 Nd4 d8N Qa4 Nf2 Ra7 Nd1 Nb3 Bg5 Ne4 Bh4 Bf6 Nc7 Nbd2 Na8 Nb1 Nde6 Bd7 Qe3 Re2 Bg2 Ra2 Rh3 Bb5 Rg3 Bc4 Rg6 Qd8 Qe1 Qda5 Qe2 Be5 Nf6 Bd5 g8N Rg7 Nh8 Rgc7 Ng4 Bf6 Nf7 Bh8 Nfg5 Bc4 Nge3+ Ke5 Nh6 Bb3 Bg7+ Kd6 Ngf7+ Kc6 Bf8 Bd5 Nd7 Kb7 Ndc5+ Kc8 Ng7 Bb3 Qd3 Be6 Qd6 Bd5 Qe7 Bc4 Ne5 Bg8 Nef7
3BB3/p1B1N3/3B1R2/B2q1Q1R/Kn1qbNp1/2B4n/2r1BnPR/2q2rrk b - - 0 1 illegal: No possible last move
1kB4N/2R5/nb2Q1b1/1N1bqPrN/NNr2BNK/p5Rp/2pNn3/5Br1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 h5 g4 e5 d4 c5 d6 h3 Kg3 h2 d5 a4 b6 e4 f6 e3 g5 e2 b5 e1R f7 c4 g6 c3 g7 c2 f5 a3 b7 Re6 b6 Nf6 g8B Nc6 Qe1 Nh7 Nd2 Rf6 Ngf3 Qc7 b8N+ Kd8 b7 Be7 f8N Nb4 Na6 Ng5 b8N Qc3 d7 Qc6 Be6 Rh7 Kh4 Rg7 Ng6 Bb7 Nc5 Kc7 d8N Ne4 Nh8 Qe8 Ne5 Bd6 Bc8 Ra4 Nbd7 Bc6 Ndf7 Ng3 Ng4 Na6 Qe6 Rc4 Na4 Bc5 Nd6 Rfg6 Nf6 Bb6 Nb5+ Kb8 d6 Ne2 d7 Rg5 d8N Qe7 Rb1 Be8 Rg1 h1B Rg3 Bg6 Rb2 Bd5 Nc6+ Ka8 Nb4 Kb8 Rbb3 Qd6 Rbc3 Qe5 Kh3 h4 Nh5 Re4 Rc7 Rc4 Nf3 Rg8 Bf4 Rg7 Nd2 Rg8 Re3 Rg7 Ngf6 Rg1 Rg3 Rg8 Kg4 h3 Kh4 Bh7 Na7 Rg5 Ng4 Bg6 Nb5
1q3n2/nr1R4/3p1qk1/1P2r2b/p1R3R1/2bNN2Q/R1R3Bp/BKRRN2b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 h5 g4 e5 f4 a5 c4 d3 c5 a4 b6 e4 c6 d6 g6+ Kg7 b5 h4 f6+ Kh6 f5 h3 g7 h2 g5+ Kh7 f7 Bd7 b7 Qb6 f6 Bg4 c7 Be7 c8R Qc5 f8R Qc4 f7 Nh6 g8R Be6 Qh5 Ra6 Na3 Bd8 Nc2 Rb6 Ra2 Qb3 Bg2 Bf5 Qh3 Nc6 b8R Bf6 Rfd8 Rb7 Rd7 Qe6 Ne3 Na7 Bb2 Bc3+ Kc1 d2+ Kb1 d1B Nf3 Qf6 Ne1 Bh5 Ba1 Ng4 Rc4 Ne5 Rgc8 Re8 g6+ Kh6 g7 Ng6 f8N Re5 Ne6 Nf8 R8c6 Kg6 Rbc8 Bfg4 Nc5 Bf3 Ng4 e3 Ncd3 e2 Ne3 Ba5 Rc1 Bc3 Rc4 Bc6 Nf3 Be4 Rhd1 e1Q R8c6 Qf2 Ne1 Qd8 R6c5 Qff6 Rcc7 Qb8 g8R+ Kh6 Rg4 Bf3 Rge4 Kg6 Rf4 Bd2 R4c2 Bc3 Rcc4 Bc6 Bf1 Bh1 Bg2 Rc5 Rfe4 Re5 Rg4+
b5NB/2p2n1K/qrQ3p1/p1RB2N1/q1BqR3/k4B1N/2P1n3/1BBb1Br1 b - - 0 1 illegal: No proof kernel
b5r1/2Np4/3qNbkB/pb1N3r/nr1B1NNp/NN1R4/Pr2B3/2K2RQ1 b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Nc6 h4 Nd4 Qd2 Ne6 Qd6 fxg4 Qd1 g3 Bd2 g4 Bc1 Ng5 hxg5 Kf7 Nc3 Ke7 Nb1 Ke8 Kd2 Kf7 f4 b5 c4 a5 e4 h5 g6+ Kg7 e6 g2 e7 b4 e8N+ Kh6 f5 b3 e5 b2 e6 g3 c6 h4 c5 Qe7 g7 Qf7 c7 Bd6 f6 Qg6 c6 Ba3 f7 Bd6 f8B Qh5 e7 Ra6 Nf3 g1R Nd4 g2 Be2 Ra8 Nb3 Rb8 Rh3 Ra8 Na3 b1B Rd3 Bc5 Bb2 Bd4 Kc1 Bf6 Bd4 Bb7 c8N Kg6 c7 Rb8 Nb6 Qe5 c8N Qd6 Nc7 Rh5 e8N Ba8 Nbd5 Ne7 g8N Rb4 Ncb6 Nc8 Ne6 Rf1 Bh6 g1R N8c7 Rf2 Qe1 Rg4 Qg1 Rh2 Na4 Nb6 Nac5 Na4 Nef4+ Kh7 Bd1 Rb2 N5e6 Rgg5 Be2 Bc2 Nge7 Rg8 Ne3 Bb1 Ng4 Bc2 Rd1 Bd3 Ned5 Bb5 Rd3 Rb1+ Kd2 Rb2+ Nc2 Qe7 Rf1 Qf8 Kc1 Qd6 Ng2 Kg6 Na3 Be7 Nec5 Bd8 N5e6 Bf6 Ngf4+
b1nNB1Rq/r2Q1Rn1/1Nn1nB1b/Q1RR1PB1/4k3/5N2/3Q2nb/7K b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 h5 exf5 d5 g4 b5 gxh5 d4 a6 d3 cxd3 b4 d4 Ra7 d5 Rb7 a4 Rb5 axb5 Bb7 b6 Bc8 b7 Nd7 b8B Nxb8 f4 Kf7 Kf2 Kf6 Kg2 c5 h4 e5 d4 g5 d6 b3 h6 e4 a7 b2 a8Q c4 d5 c3 h7 e3 h5 c2 h6 g4 d7 e2 d6 g3 Nf3 Ne7 Ra5 Ba6 Nbd2 b1N Nc4 Nd2 Rc5 Bb7 Rh5 e1N+ Kh1 Nb3 Qd2 Nc8 Qaa5 Nd4 Nb6 Nbc6 Bb5 Ba8 Ba4 Rg8 h8B+ Rg7 h7 Ng2 Rd5 Qe8 d8N Ne6 d7 Bd6 Ba3 c1N Rg5 Ne2 Bc1 N2d4 Bb5 Bc7 Rc5 Ke7 f6+ Kd6 f7 Qg8 f8R Re7 f5 Ng7 Rf7 Qf8 Nd5 Nde6 Rg4 Qe8 Rd4 Bb6 Qda2 Qg8 Bg5 Bc7 Q2d2 Qf8 Ng1 Ke5 Rd3 Bb6 Nf3+ Ke4 Ba4 Bc7 Nb6 Bf4 Rdd5 Qe8 Bh4 Bh6 Bg5 Nh5 Bhf6 Nhg7 h8Q Qg8 Qh7 Qe8 Nb7 Qh8 d8R Rc7 Re8 Re7 Nd8 Ra7 Rc2 Nf4 Rcc5 g2+ Kh2 g1B+ Kh1 Bh2 Rg8 Ng2 Bb5 N6e7 Be8 Nc6 Rff8 Nh5 Qd7 Nhg7 Rf7
3K2B1/N1pp2B1/2r2N2/4Q1PQ/1Rn3Q1/B1k2R2/rRr1b2q/Nr3n1R b - - 0 1 illegal: No possible last move
2q1Nq1R/kN5K/2qr4/q1NRQp2/q1B2BQ1/2rp3P/q1Q2R2/BB6 b - - 0 1 legal: proof: d4 d5 a4 c5 e3 cxd4 Ke2 b5 axb5 d3+ Kf3 d2 Ke2 Bh3 Ra3 Bd7 Ra1 Bc8 Kd3 e5 f3 e4+ Kd4 Bc5+ Kc3 d4+ Kc4 d3 Kc3 Bd4+ exd4 e3 h4 g5 Ne2 g4 Rh3 Nd7 Kc4 Nc5 Ng1 Ne6 Kc3 Bb7 Rh1 Be4 fxe4 Ng5 hxg5 h5 Kc4 h4 Kc5 h3 Kc4 Qe7 Kd5 Qd8+ Ke5 h2 Kf4 Ne7 Kg3 Nd5 Ne2 Nf4 Ng1 Nh3 gxh3 Qf6 Kg2 Qd8 b4 Kd7 Kg3 Kc8 Kf4 Kb8 Kf5 a5 c4 g3 d5 e2 c5 e1Q g6 a4 g7 a3 g8B g2 b6 a2 d6 f6 Kg6 f5 d7 Rh7 b5 Ra6 e5 Re7 e6 Qf8 d8B Ka8 b7+ Ka7 b8R Qe2 c6 Rb6 c7 Rh7 c8Q Rd6 Nc3 Rh4 Na4 Qe4 Bf6 Qd8 e7 Qb4 Be2 Qe4 Nf3 g1Q+ Ng5 Qgg2 Rf1 Rf4 Kh7 h1Q Ne6 Qb6 Nd8 Qb4 Rf2 Qg4 Qc6 Q6d4 b6+ Ka6 b7+ Qdb6 Bf3 Qd4 Bfd5 Qb4 Bdf7 Qgg1 Qg4 d1Q Qc7 Rc4 Bf4 Qdd2 Re1 a1Q Re5 Rc2 Ba2 Rd7 Bb1 Qgc1 Bb3 Qhd1 Rd5 Qa2 Ba1 Ka7 Qc4 Q4c5 Qc3 Q1a3 Bc4 Qa6 Rc8 Qcc6 Qb2 Qad6 Nc5 Qda5 Qe5 Rc3 Ra8+ Kb6 b8Q+ Qab7 Qee2 Qda4 Qc2 Qf6 Qe5 Qb8 Rd4 Rd6 Ndb7 Qd8 Rc8 Ka7 Rb8 Qdd7 Rh8 Qdc8 e8N Qf8 Rd5
QNb5/K1Q4Q/1p1q1kB1/3Nr1bQ/1P3pB1/2bRqpB1/R7/1rR4N b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b6 a4 Nh6 a5 Ng8 a6 Qd7 Ra5 Qe7 Ra1 Qd8 Na3 Nc6 Nb1 Nb4 Qb3 Qd6 Qc2 Qc6 Qd1 Qb7 axb7 Kd8 Ra2 Kd7 Ra1 Ke8 b3 Nc2+ Qxc2 Bf5 b4 Nh6 Qb3 Ng4 Qd1 Nf2 Kxf2 Bd7 Ke1 Bc8 b8N Ke7 h4 g5 e4 c5 Ke2 a5 Kd3 f5 Kc4 a4 Kb5 a3 d4 f3 d6+ Kf7 d7 g4 d8Q a2 e5 c4 d5 c3 e6+ Kg7 d6 c2 e7 Rh7 e8B Rh6 d7 Rg6 h6+ Kh7 h5 Ra7 Ne2 Rd6 Qc7 Re6 d8R+ Kg8 h7+ Kh8 Nbc3 Ra4 Bg6 Re8 Bh3 Ra3 Bf4 c1Q Bg3 Ra6 Nd5 Ra7 Ne7 Kg7 h6+ Kf6 Rd3 Qd2 h8Q+ Bg7 h7 f4 Qa4 Ra6 Rac1 a1B Rh2 Bc3 Qg8 Qd1 h8Q Ra5+ Kc6 Re5 Qh5 Bh6 Qa8 Bg5 Qgh7 Rd8 Rf2 Rdd5 Rg2 Ra5 Rh2 Ra1 Rf2 Rb1 Rh2 Bd7+ Kb7 Bc8+ Ka7 Qd2 Nd4 Qe3 Ndf5 Qd4 Ra2 Qd6 Bh4 g3 Bg4 g2 Ng3 g1Q Nh1 Qgc5 Bg3 Qe3 Nd5+
Q6K/1BRNq2n/2PQ2pR/2N2b1B/b4pbn/2R1bk1p/1B3N2/3B1Q2 b - - 0 1 legal: proof: d4 a5 b4 b5 f4 e5 fxe5 c5 a4 cxd4 axb5 Ra6 Qd2 Ra7 Qd1 Ra8 bxa5 f5 g3 f4 g4 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Ba6 Qd3 Bb7 Qd1 Bc8 h4 g6 h5 Ne7 h6 Rg8 Nf3 Rg7 hxg7 h5 Ng1 Ng8 Kd2 Kf7 Kd3 d5 c4 h4 e4 Bc5 f6 Ke6 f7 Qf6 f8Q Qg5 b6 Ba6 b7 Qg4 Be2 Nd7 b8N Ne7 g8R Bb4 Nc3 Nb6 Qf1 Na4 Bb2 Bc5 Rc1 Nc6 Qd6+ Kf7 e6+ Kf6 e7+ Kg5 e8B Nd8 e5 Ba3 e6 Nc6 e7 Nb6 Nd7 Bc8 c5 Qe6 a6 Bb4 Na4 Bd2 a7 Be3 a8Q Ne5+ Kc2 d3+ Kc3 d2 Nh3+ Kf5 Rg7 Ke4 Bh5 d1B Bf7 Qf6 e8B Bg4 Nf2+ Kf3 c6 Qe7 Nac5 Qf8 Be6 Qe7 B8f7 d4+ Kb4 d3 Kc3 Bd2+ Kd4 Nd5 Rc3 Nf6 Bf5 Nh7 Bb3 Bc1 Kd5 Be3 Bd1+ Kg3 Rf7 d2 Bd3 Nf3 Ba6 Bf5 Bb7 Bg4 Bb3 d1B Rg7 Be2 Bd1 Bb5 Rh2 Ba4 Rf7 Nd4 Rh1 Nf5 Rg7 Qd8 Ke6 Qc7 Kf7 Qd8 Bb3 Qe7+ Kg8 Kf3 Kh8 Nf6 Rh7 h3 Rh6 Nh7 Bd1+ Kg3 Qfd3 Nh4 Re1 Kg2 Qc4 Bd2 Re4 Be3 Qf1+ Kg3 Nb8 Bcf5 Nbd7 Qf7 Re8 Qe6 Rc8 Qe7 Bb3 Kf3 Rc7 Be6 Bc2 Bf5 Bd1+
2N1R1Q1/3Qr1NB/1B2nn1Q/1b1q2rr/2Rb3R/1Bq2n1K/N1P2k2/2q3N1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 h4 Kf7 f4 Kf6 Kf2 d5 Kg2 g5 a6 e5 a7 g4 h6 e4 b6 d3 h7 d4 h5 d2 b7 d3 h6 g3 Rh4 e3 Nc3 e2 Ra4 e1Q Kh3 g2 Na2 Qe4 Rc4 Nc6 b8N Nd4 Nc6 Qe5 Ne7 Bb7 Nc8 Ne6 Bb2 Ba3 Bd4 Bc6 Bb6 Bb5 Qg4 Rb8 a8B d1R Bd5 d2 Bd3 Re1 B3e4 d1Q Bd3 Kf7 f6 Qc3 f5 Qc1 Qd1 Bb2 Qd2 Kf8 f7 Nf6 Qd1 Rg8 h8Q Re4 Qh7 Rg5 Qg6 Re5 h7 Rb7 Qg4 Re7 h8R+ Ng8 Q6h5 Kg7 f8N Kf6 Qe8 Qd6 Qd7 Rh5 Qg3 Ba1 Qh2 Kg5 f6 Rf5 f7 Nf6 Rc5 Qde5 Bb3 Qd5 Rc4 Bb2 Ng6 Re5 Re8 Rf5 f8Q Re5 Nf4 Rf5 Nge2 g1N+ Kg3 Nf3 Kh3 Re5 Ng1 Ba1 Bh7 Bb2 Bg8 Kf5 Qg3 Rg5 Qh6 Rh5 Rc6 Ke4 Bh7+ Ref5 Rc5 Ke3 Qg8 Rhg5 Nh5 Kf2 Ng7 Rh5 Rf8 Rfg5 Rd8 Q3e3 Rc4 Bd4 Rf8 Qc3 Re8
4Qb1n/5N2/bRr2RrN/nQ3qkP/4n1N1/1B3RN1/1B2QBr1/K2b1q2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 f4 Kf7 d4 Kf6 Kd2 g5 Kc2 e5 Kb2 c5 h4 b3 h6 e4 h5 g4 b6 e3 h7 e2 d6 e1N d5 c4 b7 g3 d7 g2 d6 Qe7 d8N Qc7 d7 Nc2 Nc3 Nc6 b8Q N2b4 Ne4+ Kg7 f6+ Kh6 f7 Na5 f5+ Qf4 f6 Nc2 Ng3 Bb7 Ra3 Ne3 Ka1 c3 Qe2 c2 Bb2 Ba6 Qbb5 Nf5 Nh3 g1Q Nf2 Nge7 Ng4+ Kg5 Rh3 Rg8 h8N Qgf2 Bg2 Qe5 Bd5 Rg6 Ra4 Qe6 Rb4 Nd6 Bc4+ Qef5 Bd5 Bh6 f8Q Ne4 Qe8 Bf8 f7 Rc8 Be6 Rc6 Bc4 Bh6 f8R Qf1+ Qd1 Bg7 Rf6 Bf8 Bd5 Rd6 Be6 Rd2 Bd5 Rg2 Nhf7+ Kf4 Nfh6 Kg5 Qb1 c1R Qe2 Rc6 Rb6 Rg7 Bf7 Ng6 Bd5 Nh8 Ndf7+ Kf4 d8B Rg6 Nfe5 Kg5 Be7 Bd3 Bc5 Bc2 Bf2 Bd1 Ba3 Qh1 Qbd3 Qf1 Qb5 b2+ Ka2 b1B+ Ka1 Rg7 Bb2 Bd3 Bb3 Bc4 Nh1 Rg8 Rf3 Rg6 Ng3 Bd3 Qd5 Ba6 Qc5 Bd6 Qcb5 Bf8 Nef7+
Qr5B/KR4qQ/P2r1q1n/q1N2N1k/Nn1N1R2/3Q2nb/BR6/b2bB3 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 Kd2 Kf7 Kd3 e5 Kc4 g5 Kb5 g4 a4 b3 h4 b2 f4 e4 c6 g3 h6 g2 f6 Kg6 d6 b6 h7 e3 f7 e2 h5+ Kh6 a5 e1N a6 Qg5+ f5 Nd3 d7 Ra7 d8Q Nf6 c7 Nb4 Rh2 Qd2 Nc3 b1Q Nge2 g1Q Na4 Rb7 Nd4 Rg8 h8B Qg3 Bc4 Qb2 Ba2 Qg7 Rb1 Ne4 f6 Bh3 c8N Ng3 Nd6 Nd7 Qa8 Rb8 N6f5+ Kg5 h6 Ne5 h7 Ng4 Qb3 Nh6 Qd3 Kh5 Re2 Bd6 f8R Be5 f7 Qf6 Rg2 Rg6 Re2 Qdg5 Bd2 Qg7 Be1 Rd6 Rh2 Qbd2 Rf2 Q5f6 Rf4 Qc3 Rg8 Qa1 f8N Qc3 Nfe6 Qa3 Nc2 Ba1 Rb2 Qac3 Re8 Qcc7 Re7 Qd8 Kc4 b5+ Kc5 Qa5 Ncd4 Nc6 Rb7 b4+ Kc4 b3 Nec5 Nb4 Nb5 Qac7 Nbd4 Qcd8 Kb5 Qdc7 Rbf2 b2 Rg2 b1B Rb2 Qcf7 Ka5 Bc2 Kb5 Bd1 Ka5 Nc6+ Kb6 Nb4+ Ka7 Qgg5 Bg7 Qc7 h8Q Qa5 Qh7 Qg4 Bh8 Qgg5 Ne7 Qgg7 Nef5
1R4Q1/2N1R1Nq/1B2nnkb/1Q2br2/rR5P/b1b4Q/1nKB4/N2r2NB b - - 0 1 legal: proof: e4 b5 a4 d5 axb5 g5 c4 f5 cxd5 g4 exf5 g3 Be2 gxh2 f4 h5 Ra3 h4 Re3 h3 Rb3 Be6 Ra3 Bf7 Ra1 Bh5 Nf3 Bg4 Rf1 h1N Ng1 h2 Rf3 Bh3 gxh3 Nf6 h4 Ng8 d4 Kf7 Kd2 c5 b4 a5 d6 e5 d7 c4 d5 e4 f6 e3+ Kc2 a4 b6 a3 b7 c3 b5 a2 d6 Nh6 f5 Nc6 b8R Rg8 b6 Ra5 b7 Rg4 Qf1 Rc5 Nd2 Rg7 Rb1 a1B Rb4 Ng8 Qh3 Rg4 Nb3 Bb2 Bd2 Bh6 Na1 Qe7 d8B Nf2 d7 h1R Bb6 Nd1 d8Q Qe4+ Bd3 e2 Re3 e1B Qd7+ Qe7 Be4 Nd8 Qb5 Ne6 Bf3 Ba3 Bc6 Nb2 Bf3 Rh2 Bh1 Bg3 Ree4 Be5 Re2 Rd5 Re3 Rd8 Re1 Rf2 Re2 Kf8 f7 Kg7 f6+ Kg6 f8Q Qh7 f7 Nf6 Qg8+ Bg7 Re1 Rf5 f8N+ Kh5 Kb3 c2 Re3 c1B Kc2 Nf4 Ne6 Kg6 Qh8 Bh6 Ng7 Ne6 Qg8 Rd6 Rc3 Rd8 Rc7 Bc3 Rf7 Bf4 Re7 Bfe5 Ra8 Rd7 b8N Rgd4 Na6 Ra7 Nc5 Ra4 Rb8 Rd8 Na6 Rd7 Be1 Rd1 Nc7 Bh6 Bd2
Q2bR2B/3K2P1/2rN2q1/3Q2b1/3nrN1R/n1R2N1B/B2q2bq/1bQk1N2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 h5 f4 h4 d4+ Kb6 g4 c5 d6 c4 g6 c3 g7 c2 d5 Kc5 d7 h3 Ke6 h2 f6 b3 b6 Kb4 f5 b2 d6 Kb3 g5 Ra4 g6 Ra6 b7 Ra5 f7 Nf6 g8B Rh6 Bh3 Ra4 Nf3 Nd5 f6 Ne3 Qd5+ Nc4 Nbd2+ Kc3 Rb1 Na3 Nf1 Nc6 b8Q Bb7 Bg5 Ba8 Rc1 Qe8 d8N b1B d7 Rg4 Nb7 Re4+ Ne5 Bg7 f8Q Bh8 f7 Bf6 d8R Kb2 Rg1 h1Q Rg4 Qh2 Rh4 Kc3 Nd6 Bb7 Rd1 c1B Rd3+ Kc2 Bf4 Bd2 Rc3+ Kd1 Qa8 Bg5 Qg7 Bf6 f8N Qf7+ Kd7 Nd4 Bg3 Bdg5 Qh8 Qh7 Nf3 e5+ Qg7 Be7 Re8 Bd8 Bf7 Bc7 Qa2 Rf4 Qg8 e4 Nb5 e3 Ne5 e2 Ne6 e1Q Qb2 Bg2 Nf3 Rf6 Be5 Qf2 Nf4 Re6 Bh8 Re4 g7 Bcd8 Ba2 Qd2 Qgd5 Rc6 Nd6 Qg6 Qc1+
QnB2nRn/rBQNP3/Rq3b1n/2Q5/5N1Q/b1k2b2/KN1R1qB1/7n b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bd6 b3 Kf8 Ba3 Ke8 Bc5 Bc8 Be3 Bf8 h4 a5 g4 Bc5 h5 Ra6 Bf4 gxf4 g5 Rg6 hxg6 Bf8 d4 Kd7 Kd2 f5 Kc2 h5 Kb2 c5 e4 h4 b4 h3 b6 c4 e6+ Kd6 b5 h2 e7 f3 e8B f2 b7 f4 e5+ Kc7 e6 Kd6 b6 c3+ Ka2 c2 g7 c1B g6 a4 Na3 f3 Bg2 f1Q Qc2 f2 Bd7 Rh5 Ne2 Bh6 Nf4 Ne7 g8B Bg5 g7 Rh7 Bc6 Qe2 Rhd1 h1N Rd2 f1N Qc1 Ng6 Nc4+ Ke7 d6+ Kf6 d7 a3 d5 Nh2 d6 Ng4 Qg1 Nh8 Qc5 Nh6 Bcd5 Qc7 d8Q+ Kf5 d7 Qf2 Bf7 Bf6 g8R Qd6 Qdc7 Rg7 Na5 Ke5 d8Q Bd7 Be8 Bc6 Bd7 Rh7 Bc8 Rg7 Kb3 a2 Kb2 Bb5 Ka3 Be2 Kb2 Bf3 Qde7 Nc6 b8Q Rf7 Qa8 Nb8 b7 Rg7 Rg1 a1N Ka2 Nc2 Ra1 Nd4 Qed8 Ndc6 Qde7 Nd7 Qed8 Ncb8 Nc4+ Kf5 Qe7 Qb6 Qed8 Bd6 Qe7 Nf8 Qed8 Na6 b8N Rh7 Nd7 Nb8 Qca5 Ba3 Bdb7+ Be5 Qh4 Re7 Nd5 Bf6 Qac5 Rg7 Qh3+ Ke4 Qh4+ Rg4 e7 Rf4 Rc2 Kd3 Re2 Re4 Nf4+ Kc3 Rb2 Re1 Rd2 Rg1 Re1 Rf1 Re6 Rb1 Rc6 Rb4 Re6 Ra4 Rc6 Ra7 Re6 Qb5 Ra6 Qb6 Nb2+
n6R/1r3rQq/1P3bRq/1NK2k2/1rQR2r1/4qB2/2bQ2BB/Q2qN2N b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Ke2 Kd7 Kd3 a5 Kc4 h5 d4 c5 b4 e5 d6 a4 d5 h4 g7 f3 g6 e4 f6 e3 f7 e2 b6 e1Q b5 f2 b7 a3 b8Q h3 b6 h2 Bg2 f1R Bf4 a2 Nc3 Nf6 g8N Qee8 g7 Rh5 Nb5 Rh7 Nf3 Qe3 Ne1 Be7 f8Q Ne8 Nh6 Bf6 g8B Nc7 Nf5 Ra7 Rc1 a1R Ng3 Rf7 Qg7 Rg1 Rc2 R1a3 Qa1 Rb7 Qa7 Na8 Qa4 Rb3 Rc1 Ke8 d7+ Ke7 d6+ Ke6 Qa6 Qc7 d8R Rb1 d7 Rb2 Ne4 Kf5 Nf2 Rb4+ Kd5 c4 Rd1 c3 Rd4 Rf1 Rg1 h1Q Bh2 c2 Re8 c1Q d8Q Qd1 Q6a2 Qce7 Qc4 Q7e4+ Kc5 Qh4 Bf3 Qhh6 Rg6 Rg1 Bh7 Bd7 Rh8 Rg4 Bg2 Bc6 Bg8 Be4 Bh7 Qf1 Nh1 Bc2 Bg8 Qfd3 Bf3 Rfd7 Bgd5 Rf7 Qd6 Qd3d2 Bg2 Qh7 Bdf3 Qeh6 Re4 Qdf4 Qd2 Qe3+ Rd4
1QR2rkn/K2P4/1Q4RB/1qNNrBrr/1r2Rq1n/1N6/4BR2/2rr2Q1 b - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kb3 Kf8 Ka4 h5 Ka5 c5+ b6 a6 b4 g2 e4 h4 d4 c4 d6 h3 g5 c3 g6 c2 g7+ Kf7 d7 h2 e5 Qg5 d8Q Rh3 b7 Qe7 Kb6 a5 d5 a4 d6 a3 f5 a2 b5 Nh6 g8R Qe6 f6 Ng4 Be2 f1R Nc3 f2 Rg6 Rg3 Nf3 g1R Nd4 Qd5 d7 Ra7 Nb3 Rf3 Bh6 Rf4 Rc1 Nc6 b8N a1R Na6 Ne3 Nac5 Rg5 Rg1 h1R Rg4 Qd2 Nd5 Rb4 Re4 R7a5 Kb7 Qd4 b6 Ne7 Kb8 Rh2 b7 Rhh5 Qb6 Ng2 Qe1 Rb1 Qd1 Rab5 Ka7 Nh4 b8Q Qc4 Qd4 Rd1 Qa1 f1Q Qd4 Qf4 Qg1 Rd3 Rf1 c1R Rf2 Rf3 Rg8 Nhg6 Rc8 Nh4 e6+ Kg6 f7 Kh7 f8R Neg6 e7 Nh8 e8B Qd3 Rf7+ Kg8 Rfe7 Rd1 R7e6 Rbc1 Bf8 Qc4 Bg6 Qd3 Bf5 Ra5+ Kb7 Qb5 Rg6+ Kf7 Ne6 Qh2 Bh3 Qc4 Nf6 Rae5 Nd5 Qb5 Nec5 Rff5 Ka7 Qf4 Rf6+ Kg8 Rg6+ Kh7 Bg7 Rf8 Bf5 Kg8 Bh6+
2N1Q3/n1b4B/1NP4N/2Q1BRKn/bbR5/1R1Q3k/n1Rn2br/Bn3b2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 h4 cxd4 e4 g4 f4 g3 e5 Ra7 f6 Bb7 b6 Qc7 f5 Qc6 Bc4 Kd8 Bf1 Bc8 f7 Qf6 exf6 Rc7 Bh3 Rc3 Bg2 Rf3 Bf1 Rf4 Qd2 Rg4 Qd1 Rg5 hxg5 Ba6 Rh2 Bb7 Rh1 Bc8 Kd2 h5 b4 d5 c4 Kd7 b7 e5 g6 e4 c5 h4 g7 e3+ Kd3 h3 b5 h2 b6 a4 Bh3 g2 Ne2 g1N Na3 Nf3 Ra2 Bd6 f8R Bc7 f7 Nc6 b8B Nd2 b7 Na7 Nc4 a3 Nd6 Nb1 Bb2 Nf6 g8N Nh5 Nc3 e2 Na4 e1B Ba1 Bb4 Rc2 a2 Nh6 Rh7 Re1 h1B Re4 Bg2 Ke2 d3+ Ke3 d2 Rec4 Ke7 c6 Bd7 Qe2 d1B Nb6 Rh8 Qf3 d4+ Ke4 Kf6 Ndc8 Kg5 f6 Kh4 Bf5 d3 Bh7 Bf1 Qe3 d2 Qd3 B7g4 Ke3 Kh3 Ke4+ Bgf3+ Kf5 Bd8 Bg3 Bc7 b8R Bd5 Kg5 Bdg2 Rc1 Ba4 R1c2 d1N Re8 Bh1 f8Q Bf3 f7 Ndc3 Qc5 Be4 f8Q Beg2 Bg6 Rh7 Re5 Rh8 Rf5 Rh7 Bb2 a1N Qe8 Nb3 Ba1 N3d2 Rb7 Rh8 Bh7 Na2 Nd7 Bc3 Rb3 Bb4 Ndb6 Rf8 Qcd6 Bd5 Re5 Rf2 Rf5 Rh2 Qc5 Bdg2 Bge5+
6br/n5B1/1R6/1bB2K1n/2R1QN2/rq1B1NP1/QpB1R1rN/q4Qbk b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Ke3 c5 Kf4 h5 d4 h4 g3 h3 g6+ Kf6 d6 h2 b6 b3 d5 e6 b7 c4 g7 c3 d7 c2 d6 b2 Qf3 Nh6 g8B Na6 b8R Ra7 Qe4 Qe8 d8Q+ Be7 d7 Ng4 Be3 c1R Ra4 Rc2 Nf3 Nb4 Bc5 Ba6 Qa5 Nc6 d8N Qf7 Rc4 Bb5 Qa2 Ra3 Bd3 Na7 Re1 h1B Nh2 Bf8 f3 Rg2 Bh7 Qb7 Re2 Qd5 Rd4 Qb3 Rc4 Be7 Nd2 Bf8 Bb4 Bc5 Rb6 Bg1 Bc5 Ra4 Qa8 Ra3 Ke4 Kg5 f6 e5 f7 Kh5 f8B Nf6+ Kf5 e4 f4 e3 Qe4 Qd1 Ke5 Qb3 f5 Kg5 Bg7 Nh5 Rf2 e2 f6 e1Q f7 Qa1 f8Q Nf4 Ndf3+ Kh5 Nf1 Kg4 Ne6 Kh3 Re2 Nh5 Kf5 Rf2 Qf4 Kg2 N3d2 Qc1 Kg5 Qbc3 Bc2 Qd1 Nh2 Qa1 Bhd3 Qb3 Qe8 Kh3 Kg6 Bd5 Kf5 Kg2 Qa8 Kh1 Qf3+ Rg2 Qf1 Nf4 Ndf3 Nh5 Nf4 Bg8 Qe4
2qBkn1r/3Qn3/RNR2bn1/1KNr3Q/N1BRb1B1/1Q2p3/1P1Q3b/7q b - - 0 1 legal: proof: e4 d5 h4 a5 c4 f5 exf5 b5 cxd5 g5 a3 b4 axb4 gxh4 bxa5 Ra7 a6 Ra8 Ke2 c5 Kd3 h5 Kc4 e5 f4 e4 d4 h3 g4 h2 g5 h4 g6 h3 a7 Be6 f6 Bg7 f7+ Kf8 f5 Ne7 Ra6 Qb6 Bg5 e3 Qh5 Be5 Nc3 Rg8 Nge2 Rg7 Ne4 Rh7 N2c3 Qd8 Kb5 c4 d6 Bc8 d5 Qe8+ d7 Rh6 d6 Bf4 Na4 c3 Bc4 c2 Rc1 h1N Nec5 h2 Bh4 Nec6 d8R Ne7+ d7 Rh8 Be2 Ng3 Bg4 Bb7 Bg5 Nbc6 Bf6 Rc8 a8N h1Q N8b6 Ne4 Bg5 Nf6 Bh4 Ned5 g7+ Ke7 g8B Bh2 Bg5 Ne5 Bh4 Ng6 Bg5 Kd6 f8Q+ Nde7 Qf7 Nh7 f6 Nhf8 Qb3 Be4 Bc4 Ra8 f7 Rb8 Rf1 c1B Rf6+ Kc7 Re6 Bd2 Rd6 Bc3 Rf6 Nh7 f8Q Bce5 Rd6 Bf6 Qf7 Nhf8 Qd5 Rc8 Qd2 Ra8 Rd4 Ra7 Rb8 Qc8 Rb7+ Kd8 Rc7 Rb7 Rc6 Rc7 Re6 Rc6 Bh4 Rd6 Bg5 Rd5 Rc6 Ng8 Bh4 Ke7 d8Q+ Kf7 Qd7+ Ne7 Bg3 Nh7 Bc7 Nf8 Qe6+ Ke8 Bd8 Bc2 Qd6 Be4 Qd7+
2QN1BbQ/4q3/4rP2/2R1nB1K/rbq2NnB/1b2R1p1/NR2Rk2/2Qr4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 h4 d5 c4 e5 b4 a5 b6 g5 b7 d3 h6 a4 h7 a3 c5 d2 b5 Ke3 h5 a2 b6 d4 c6 d3 c7 e4 h6 Bd7 c8Q Na6 b8N Ra7 b7 Nc7 Ne2 Bb4 Rh3+ Kf2 Nc6 e3 b8R Nd5 Nbc3 Nde7 Kh5 g4 f6 Be6 f7 Ra4 f8B Ng6 f5 Qe7 f6 Ne5 Nf4 e2 Nd8 e1Q Re3 g3 Bh3 Qe2+ Bg4 Bb3 Rb5 Bd5 Rc5 Bc4 Rb1 a1Q Na2 Qc3 Rb2 Bb3 Qc2 d1B Bd2 Qc4 Qc1 Qf1 Re1 Bf3 Re3 Bd5 Bf5 Be6 Re1 Bf7+ Ng6 Qg2 Bg5+ d2 Bh4 Qge4 Re3 Qec2 Re1 d1R Re3 Be6 Nf4 Q2e2+ Kg5 Qb5 Bg7 Nc6 Kg6 Qeb7 Kg5 Qc2 Re1 Qc4 Kh5 Bd5 Ra5 Qa7 Rc5 Q2e2+ Kg6 Nge7+ Kg5 Re8 h8R Ng8 h7 Nh6 Kg6 Re7 Re8 Ng4 h8Q Bg8 Bf8 Re3 Ree5 Qe7 Kh5 Re4 Red5 Re6 Rd3 Nce5 Rc3 Rd7 Re3 Rd1 R1xe2+
rBb4q/5n2/N1NQ2R1/3pNr1k/bb3B2/RbQ2P1K/R1r3QB/2R4n b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 c6 a4 Ba6 d4 Bc8 axb5 a4 b6 a3 b5 a2 b7 Ra5 b6 Rc5 Bb5 cxb5 dxc5 Qc7 Nd2 Qd8 Rb1 a1R Ne2 Na6 Ng1 Ra3 Ra1 Nb8 Nb1 Ra8 Kf1 Kf7 g4 e5 Kg2 h5 c4 b4 f3 e4 c6 d6 c5 h4 f6 Kg6 c7 b3 c6 e3 f7 b2 Ra2 e2 Kh3 e1R Na3 b1B Ne2 Na6 b8B Qd7 b7 Qf5 Bf4 Qe6 Nd4 Qd7 Nc4 Nh6 Qd3+ Re4 Rc1 Bc2 Qd2 Be7 f8B Nb4 Qd3 Qd8 Ne5+ Kh7 Bh2 Nf7 Bh6 Rf8 Qa6 Bd7 c8Q d5 c7 Nd3 Qd6 Bda4 Ndc6 Rc4 Ra3 Bcb3 g6+ Kh8 g5 Rc2 g7+ Kh7 g8R Nf2+ Kg2 Qe8 Rg6 Nh1+ Kh3 Qd8 Qg4 Qe8 c8Q Qd8 Qdd7 Bb4 Qg2 Qf6 Qd6 Qh8 Qgg4 Nd8 Qg2 Rf5 Ba7 Nf7 b8N Ng3 Na6 Nh1 Kg4 h3 Bb8 Qd8 Na7 Qf6 Qc3 Qh8 Nac6 Ng3 Bg1 h2 Kh3 h1B Bh2 Qe8 Rf6 Qh8 g6+ Kg8 g7 Kh7 Qgd2 Bg2+ Kh4 Bc5 g8R Nh1 Rgg6 Bh3 Qg2 Bb4 Re6 Rf6 Re8 Bc8 B6f4 Rf5 Kh3 Be6 Rg5 Kh6 Rg6+ Kh5 Re7 Bc8 Ra7 Rd2 Ra2 Rc2 Nc5 Bb5 R7a3 B5a4 Na6
4Rn2/4bQ2/NB3BBK/p2PrNrn/5Qk1/2QN1r2/Bn1q4/1R2bn1R b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kd7 Kf3 a5 d4 c5 b4 h5 d6 e5 f6 Ke6 b6 h4 b7 h3 b5 h2 g6 c4 b6 c3 g5 Kf5 d7 c2 f7 Bc5 f8Q+ Qf6 d8B Ra7 g7 Qf7 g6 Na6 b8N Nb4 b7 Qf6 Ne2 Ra6 Nbc3 Be7 Qe1 Rh5 Ne4 Rg5 Qc3 Nd3 Qf7 Nb2 Be3 c1R Nc5 Re1 Rb1 Rb6 d5 Rb3 Nd3 Ra3 Beb6 e4+ Kf2 f3 Ke3 f2 Na6 Rb3 b8Q Kg4 Qbe5 Qc6 Qc7 Nf6 g8B Qc4 g7 Qb4 Bh7 Nd7 g8R Nf8 Bg6 Ra3 Kd2 Rb3 Nd4 Ra3 Nf5 e3+ Kc2 e2 Kd2 Rb3 Ke3 Ra3 Qcg7 Qc3 Qgf6 Qc2 Qcc3 Qd2+ Ke4 Ne6 Re8 Nf8 Bg2 f1N Ke5 Ng3 Bf1 Nh5 Qd6 Ra4 Qdc7 Rf4 Qb8 Rf3 Qbc7 Bb4 Bf6 Be7 Qb8 Rc1 Qd6 e1B Be2 Rc2 Bd1 Rc1 Bb3 Rc2 Ba2 Rc1 Rf1 h1N Qdc7 N1g3 Rh1 Nf1 Ke4 Qh2 Qf4+ Kh3 Nd6 Rc2 Bh7 Rg8 Kf5 Re2 Qg7 Ree3 Kg5 Re4 Qg6 Re5+ Kh6 Rg7 Qf7 Rgg5 Qfd4 Kg3 Bg6 Qd2 Qe3 Kg4 Nf5 Qh2 Qec1 Qe2 Qe3 Qd2 Qf4+
q3bQNK/1kN1B1P1/1Bn1n1rR/1nB1N3/1qb1RQQ1/n4B1R/2r2p2/8 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Be7 gxf5 g4 h4 Bg5 hxg5 exf4 Kf2 Kd7 e4 h5 d4 c5 b4 Kc7 f6 a5 g6 h4 e5 c4 f7 g3+ Kf3 h3 Ke4 h2 f8Q f3 e6 a4 Ke5 g2 d6+ Kb6 d7 c3 d5 a3 e7 c2 e8R a2 d6 f2 Be2 Ne7 Kf6 Rh4 Kg7 Ra5 Nf3 g1Q Nbd2 Ba6 Ba3 c1N Ne4 Nec6 Ne5 Qf1 Nf6 Ra4 Ng8 Rc4 Bf3 Nb3 Kh8 Qe2 g7 Ka7 b6+ Kb7 b5 Qc2 Bc5 Nd4 Qe2 Qe7 d8B Ne6 d7 Qe4 Rac1 a1N Rc3 Qd6 Be7 Nc2 d8B Nc6d4 Re3 Nbc6 Rd3 Kb8 b7 Na3 Bdb6+ Qd8 Qd1 Rc2 Qg1 Qe1 Qg4 Rac4 Qff4 Qb4 Re3 R4c3 Re4 Rb3 Rf8 Rb1 Rf6 Rg1 Rh6 Qf8 Ba7+ Kc7 b8N Kb7 b6 Bc4 Na6 Ndb5 Nc7 Qa8 Nd5 Ka6 b7 Rg3 b8Q Rg2 Ra1 h1B Qbf8 Kb7 Bab6 Rg3 Nc7 Bg2 Qh5 Rg6 Rh1 Bh3 Qhh4 Bg4 Rh3 Bh5 Bd1 Rg3 Bg4 Be8 Bf3 Rg6 Qhg4
2Q1B2N/k1N1nQ1b/P2B2RN/5q1Q/1B2bNq1/3r1p1R/n6b/1Rb1K1b1 b - - 0 1 legal: proof: c4 b5 b4 a5 d4 d5 g4 h5 gxh5 e5 f4 axb4 fxe5 c5 cxd5 c4 Qa4 Ra6 Qb3 Rc6 Qd1 Rc5 dxc5 Bd6 Nd2 Be7 Nb1 Bf8 e4 Kd7 a4 Kc7 h4 Kb7 e6 f5 d6 g5 a5 b3 d7 c3 c6+ Ka6 e7 g4 e8R g3 c7 b2 h6 c2 h7 g2 h5 f4 e5 Qf6 d8B Bd7 c8Q+ Ka7 a6 b4 h6 b3 e6 Qe5+ Ne2 g1B e7 Bh2 Bc7 Qg5 Bd6 Qf5 Nbc3 b1Q Nd5 b2 Nc7 Qe4 Bd2 c1B B2b4 Bf5 Qd5 f3 Qf7 Qc4 Nf4 Nc6 Qh5 Qd4 Bb5 Be4 Rd8 Bg1 e8Q Nge7 Qef7 Qc2 Rd7 b1B Rh3 Qcc5 Rd8 Qf5 Rd7 Rg8 h8N Rg2 h7 Rd2 Rd8 Rd3 Re8 Bg7 Rg8 Be5 Rg6 Bc2 Rb1 Qc4 Ba3 Nb4 Be8 Na2 Bab4 Qd4 Qg7 Qc4 Nf7 Qce6 h8N Qd7 Ne2 Beh2 Nh6 Qg4 Qf8 Qdf5 Qg8 Bb3 Qg7 Bg8 Qf7 Bh7 Nf4
k1q1R2B/3pn1NN/n1r2n2/2R2NPR/3qQ1nb/Q2Q4/1nBr3B/2R4K b - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kf2 e5 Kg2 h5 b4 a5 c4 d3 g7 a4 c5 d2 b6 a3 c6 h4 c7 e4 c8R a2 g6 e3 b5 e2 g5 e1Q f6 Ra5 f7+ Ke7 b7 Kd6 b6 Ra6 Bd3 Qf6 Rc5 Rh5 Nf3 Be7 f8Q Qee5 Nc3 Qd4 Na4 Nc6 b8R h3+ Kh2 Rh6 b7 Kc7 Nh4 Qc4 Ba3 Qfd4 Bc2 Nf6 Rc1 a1N g8N Nb3 g7 Rh8 Qg4 d1N Nf5 Nb2 Re8 Bd6+ Qf4 Qcc3 b8B+ Kb7 Bb4 Qcc4 Bc3 Ka8 Qe5 Bc7 Qfd6 Ne7 Qe4+ Rc6 Qd3 Nfd5 Nf6 Rf8 Nh7 Nf6 g8Q Qa6 Rhg1 Qc8 Kh1 h2 Qge6 Rh8 Q6g3 Bd6 Qge3 Bg3 Q6e4 Bh4 Rg3 Rf8 Rh3 Rf7 Rd5 Rf8 Nc5 Rf7 Ne6 Nc5 Qg3 Na6 Neg7 Rf8 Rc5 Rf7 Kg2 h1N Qge3 Rf8 Bh2 Nf2 Qg3 N2g4 Kh1 Nfg8 Qd6 Rf6 Q6g3 Rd6 Qgf3 N8f6 Qfe3 Bf2 Rh5 Bh4 Qg3 Qf2 Be5 Rd4 Qa3 Rd2 Qgd3 Qd4 Ne6 Nfg8 Bh8 N8f6 Neg7
q3NBr1/B2r4/B3K3/1NbrNQRb/pqR1QQ2/1Pn1b3/b2R2Q1/4k3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 d6 a5 f6 c5 g7 e6 f7 h4 b6 c4 g6 c3 d7 c2 d5 a4 d6 h3 b7 h2 Qe2 f3 Nc3 f2 Nb5 Rh7 b8Q Nf6 g8Q Ne4 g7 Nc3 Be3 c1B Ba7 Be3 Nf3 Qb6 Kf6 e5 d8R e4 Rc1 Be6 d7 Bfc5 Rg1 h1Q f8B Ba2+ Qd6 Rh5 b3 Rd5 Ne5 Qa5 Qg4 Qh8 Bc4 f1B Ke6 Be2 Qf5 Bh5 Rg5 Rc8 Rc2 Rc7 Rc8 Qb6 d8Q Rd7 Qgh7 Qb8 g8N Qa8 Ng6 Qd4 Qdf4 R7d6+ Ke7 Bg1 Qg3 e3 Qff4 e2 Qd7 e1R+ Re5 Be3 Nc7 Rf1 Nf6 Nb5 Nfe8 Bb6 Qdh3 Rf3 Qgg2 Rd7+ Ke6+ Qc5 Rf5 Rg3 Ne5 Rg8 Rf2 Kc3 Rg5 Qb4 Qhe4 Bd4 Qhf5 Bb6 Be2 Kd2 Bf1+ Ke1 Rd2 Nc3 Ba6 Bd4 Nb5 Bb6 Rc4 Bd4 Nbd6 Bc5 Nb5
2qR1b2/Qr1b4/2PQRN1r/B5rQ/K1n1qBN1/b4N1p/1kB3R1/Q4b2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Nb3 g5 Na5 g7 Nc4 Bd2 Ne5 Bc1 Ng6 hxg6 Qc7 Rh6 Qb6 Rh1 Qd8 Kd2 d5 b4 Kd7 c4 Kd6 Kc2 Ke5 Kb3 a5 b6 h5 b5 e6 f6 d3 b7 Kd4 b8B h4 f7 h3 b6 d2 c5 e5 c6 e4 b7 e3 Na3 e2 Nc4 e1Q Bf4 Nf6 g8Q Ng4 b8Q Rh6 g7 Ra7 g6 Bd7 Ne5 Qe4 Qh8 Qc8 g8N Rb7+ Ka4 Ne3 g7 Nc4 Rh2 Kc3 Ng4 d4 N8f6 d3 g8R Ba3 Qe2 d1R f8Q d2 Nf3 Re1 Bg2 Rg1 Qfd6 Kc2 Qe1 d1B Qa7 Be2 Bcd2 Bf1 Rd8 Kb2 Bh1 Rg2 Qh4 Rg3 Re1 Rg1 Qh5 Rg2 Nf2 Rg5 N2g4 Qb1 Qdb8 Qa1 Nh4 Kc2 Re6 Qe1 Ne8 Bf8 Qd6 Kb1 Be4+ Ka2 Bc2 Qe4 Re5 Ka1 Rg2 Ka2 Bb4 Ka1 Kb3 a4+ Kc3 a3 Kb3 a2 Nf3 Qg6 Ka4 Qe4 Bb3 Kb1 Re6 a1B Ba5 Bb2 Bc2+ Ka2 Qc3 Ba3 Qe1 Kb2 Nef6 Ka2 Qed1 Kb2 Qa1+
Bb1K4/q1P1rq1p/1nN1B3/3R1N2/1rq2bR1/1qR3b1/5QNk/1BBQ2Q1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 axb5 f4 d4 cxd4 h4 g5 Bd2 Bb7 Be3 Be4 Bc1 Bf5 gxf5 Qf6 Ra3 Qb6 Ra1 Qd8 Kf2 g4 Qd2 Na6 Ke1 Nc7 Qd3 Ne6 Qd1 Ng5 hxg5 Bh6 Ra5 Bg7 Ra1 Bf8 Kd2 Ke7 Kd3 a5 Ke4 d6 Kd5 f3 Kc6 g3 e4 f2 b4 d3 c4 d5 b6 d4 e6 a4 b7 a3 b8R a2 b5 d2 g6 Kf6 b6 Kg5 e5 Kf4 g7 d3 b7 g2 f6 Kg3 f7 Qd4 Kc7 Qb2 c5 Nf6 g8Q+ Ng4 e7 Qa3 e8B Ra7 c6 Ra8 e6 Bh6 f8Q Qb2 e7 Ra3 Rc8 Bf4+ Kd8 Qc3 b8N Rb3 Bf7 Qc4 e8B Rb4 Nf3 g1B Rh4 Bh2 Bg2 f1Q Nc3 Qf2 Qg6 Qa7 Nd5 Rg8 Ne1 Rg7 Bg8 Re7 Ne3 Qf7 Rb1 a1B c7 Bd4 Rb3 Bc5 Qb6 Nf6 Nc6 Nd7 Rc3 Bd4 Qc5 Nb6 Bh1 Qc4 Rg4+ Kh3 Bgf7 Bhg3 Be6 Kh2 Nf5 Bdf2 Bg6 B2e3 Qa4 d1Q Ng2 Qf3 Qd1 d2 Qg7 Bg1 Qf2 Qfd5+ Nd6 Qh5 Bb1 Qg6 Nf5 Qf7 Qb3 d1Q+ Qgd4 Qdf1 Qbd1 Qb3 Ra8 Qfc4 Qg7 Qb7 Ra5 Qa7 Rd5 Nd7 Ne1+ Kh3 Ncd4 Bh6 Ra5 Bf4 Qfe2 Qac5 Qh6+ Qh5 Ba8 Qb6 Qf3 Qba6 Nc6 Ba7 Rb5 Bb8 Ng2 Nb6 Qf2 Qb7 Rd5 Qa7 Ngh4 Qf7 Qfg1 Be5 Qhe3 Bd6 Ng2 Bf4 Qge1 Kh2 Q3f2 Qb5 Qef1 Q5c4 Q1g1+
1bkrrQRB/1NR1n3/KP3QrR/1rbp4/1q2R1B1/4r2Q/5N1N/1Br5 b - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f7 Kd6 h4 Qe8 f5 Bb7 f6 Be4 Rh3 Qc8 Rh1 Bf5 gxf5 Qd8 Be3 g5 Ra6+ Nc6 Bc1 g4 Ra3 Ne5 Ra1 Nf3+ Ke2 Ng5 hxg5 Qb6 Ke1 Qd8 Kd2 Kc7 Kd3 e5 Kc4 a5 b4 h5 g6 e4 b6+ Kb7 Kb5 d5 c4 g3 g7 a4 c5 d3 c6+ Kc8 b7+ Kb8 c7+ Ka7 b8N Kb7 c8B+ Kc7 Nf3 a3 Nh2 a2 Nc3 d2 Nc6 h4 Qf3 d1R Bb2 g2 Bd3 g1B Bb1 e3 Na5 h3 Nb7 e2 Ne4 e1R Nf2 Bd6 f8R Re4 f7 Re5 f6 Ne7 g8R Rc1 Bg4 Re3 Re8 Qb8 f8Q Rh6 f7 Rg6 Bh8 Bg3 Nf1 h2 Qh6 Be5 f8Q Bf4 Qhh3 Bd6 Bc2 Be5 Rb1 a1R Q3f6 Bf4 Rb3 Rab1 Ra3 Rce1 Ra7 Rbc1 Bd3 Rc5+ Ka6 Rb5 Rd8 Bg3 Rd6 Rc1 Re6 Kd7 Bb1 Qf4 Qf5 Rd8 Q5f6 Kc8 Re5+ Qf5 Re4 Bb8 Na5 Re8 Rd7 Qf4 Nb7 Rd3 Nd1 Bc5 Nf2 Rg3 Rg1 h1R Nh2 Rf3 Rg2 Rhe1 Rg1 Rfc3 Rh1 Rd8 Re5 Qh6 Nf1 Nc6 Qhf3 Qf4 Rh6 Re4 Nh2 Rce3 Re6 Re5 Qh3 Qd4 Red6 Ree8 Re6 Ne7 Re4 Qb2 Na5 Rb7 b5 Qc3 b6 Ra7+ Kb5 Qe1 Nb7 Ra1 Ba2 Rab1+ Ka6 Rb5 Bb1 Qb4 Rc7#
3r1qb1/3Npb1k/1RKb1n2/2RR4/Q1b2nb1/1N3R1B/1BP2bNB/4Q2Q b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 h4 c5 hxg5 cxd4 e4 f4 g6 f3 g7 Ra6 g5 Rc6 g6 Rc5 Qd2 Rg5 Qd1 Rg3 fxg3 Nf6 g4 Ng8 g5 f2+ Ke2 Ba6 Bg2 f1B+ Ke1 Bc8 Bh3 Be2 Bg2 Bg4 Bf1 Bf5 exf5 Qb6 Ra3 Qc7 Ra1 Qd8 Ke2 h5 Kd3 d5 b4 h4 f6 h3 b6 a4 f7+ Kd7 b5 Ke6 b7 Kf5 b6 h2 Nd2 a3 Ne2 a2 Qe1 Qe8 Nb3 Be6 Nf4 Na6 b8N Nc7 b7 Nf6 g8Q Bg7 f8R Bf7 Nd7 Ne6 Rb1 a1B b8B Bh6 Rg1 h1B g7 Bb2 g6 Ba3 Qh7 Bd6 Ng2 Be3 g8R Bf2 Bb2 Nf4+ Kd2 d3 Kc3 d2 g7+ Kg5 Qhe4 Kh6 Qa4 d1B Bc7 Bh4 Kd4 Be2 Rd1 Qb8 Rc8 Bb5 Rgf8 Bc4 g8Q Qa8 Qg4 Kh7 Qf3 Rg8 Rb8 Rh8 Rfc8 Rd8 Rb6 Bg3 Bb8 Bg8 Rc5 Bf2+ Ne3 Bf7 Rg3 Bg2 Rd2 Bh3 Qg2 Bhe6 Rf3 Bg8 Qg1 Bef7 Bc7 Qb8 Bh3 Qc8 Qh1 Qa8 Kc3 d4+ Kb4 d3 Ng2 Qc8 Rd1 d2 Ka5 Bce6 Kb5 Bc4+ Kc6 Qb8 Ra1 d1B Ra3 Qa7 Rd3 Bg4 Rf3 Qa5 Ra1 Qc3 Rd1 Qe5 Bb8 Qh5 Rdd3 Qh6 Rdd5 Qf8 Rcb5 Bdc5 B8e5 Bd6 Rbc5 Ne6 Bg3 Nf4 Bh2
bb1RQ1r1/2bp3q/3nQ2k/2BQNb1N/b5Pb/B2N1K2/R1R3R1/6Br b - - 0 1 legal: proof: d4 b5 e4 f5 exf5 Kf7 a4 c5 dxc5 g6 axb5 Bg7 f6 Ke6 f7 Bf8 h4 Bh6 f4 Bf8 g4 Nc6 Bd3 Nd4 f5+ Ke5 f6 Ne6 Be4 Ng5 hxg5 Ke6 Bf5+ gxf5 Ke2 h5 b4 a5 c4 h4 g6 f4 b6 a4 c6 h3 b5 a3 b7 a2 b8N h2 b6 Qe8 b7 Ke5 c5 e6 g7 Qe7 c7 Rh7 c6 Nh6 g8Q Nf5 Be3 Nd6 Na6 f3+ Kf2 Bh6 b8R Bb7 f8B Bf4 f7 Kf6 c8R e5 c7 e4 Nh3 Bc6 Qd5 Ba4 Rg1 h1B Nd2 Bh2 Nf4 Rh3 Raf1 a1B Nc5 Be5 Nc4 Rh5 Ra1 Rh8 Qh7 Kg5 Ncd3 Rg8 Ba7 Bg2 Ke3 f2 Ra2 f1B Nh5 Bh1 Rgg2 Rh8 Kf2 e3+ Kf3 e2 Bf2 e1B Bg1 Bh4 Qhe4 Rg8 Rbb2 Rb8 Rd2 Rb1 Rd8 Rd1 c8Q Rc1 Nb4 Bd3 Rdc2 Re1 Qe2 Bf5 Nd3 Bef4 Qee6 Rb1 Bg7 Ra1 Bf6+ Kh6 f8B+ Qg7 B8e7 Qh7 Bfd4+ Qg6 Bge3 Bf2 Re8 Ne4 Ba3 Bhg1 Qdc5 Rg7 Ke2 Rg8 Rg3 Bh2 Q5c6 Bg2 Bdc5 Rh1 Q6b7 Be1 Bg1 Bb8 Ke3 Bf3 Rgg2 Bhc7 Nce5 Nd6 Qbb3 Ba8 Qbd5 Bh4 Kf3 Bf6 Qd8 Qh7 Qde7 Rh2 Rd8 Rh1 Q6f7 Bg5 Qee8 Bh4 Qfe6+
RNn4n/Rbp1N1n1/r2B1Q2/1r5Q/3B2NK/Bk2P1rR/Q3Qb2/2r3b1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Qf6 Bh3 Qf5 gxf5 Rh6 Bg4 hxg4 Ra2 Rh3 Ra1 Rh8 Kf2 Kf7 h4 g5 d4 a5 b4 f3 Kg3 a4 b6 a3 h5 f2 b7 f1R d6 a2 e6+ Kf6 d5 Ke5 b5 Ne7 d7 Rg8 d8Q Nec6 h6 Bc5 b6 Bb4 h7 Re1 h8B+ Ke4 d6 Ra5 e3 Ne7 f6 Nbc6 b8R Bb7 d7 Na7 f7 Rb5 f8B Ng6 e7 Nc8 Qe2 Kd5 Bd4 Nh8 Ba3 Rc1 Nh3 Be1+ Nf2 Rg6 e8Q Rf6 Qf3+ Kc4 Rh3 Kb3 Nc3 Rg6 Qdf6 Rg8 Kg2 g3 d8Q g4 Nd5 Rg5 Qe2 Rg8 Nd1 Bf2 Qh5 Rg6 Bfd6 Rh6 Kh1 g2+ Kh2 g1R Qg8 Rg3 Ra8 Rf3 Rh4 g3+ Kh3 g2+ Kg4 g1B Rh3 Rg3+ Kh4 Ba6 b7 Rhg6 b8N Bb7 Nb2 Rh6 Nd3 Rhg6 Bab2 Rh6 Ne5 Rhg6 Rb1 a1N Ng4 Nc2 Rba1 Rh6 Bba3 Rg6 B4e5 Nd4 Ne7+ Ne6 Bd4 Rh6 Bac5 Rg6 R1a7 Rh6 Ba3 Rg6 Nd5 Ng7 Ne7+ Rd5 Qff7 Rf6 B6e5 Ra6 Qf4 Ka4 Bed6 Rda5 Qf6 Rb5 Qgh7 Kb3 Qb1+ Ka4 Qa1 Kb3 Qaa2+
2Kn2BQ/2R1B1R1/N2Q2b1/4qn2/kn2qpqR/1r2B1P1/1NNq4/2qQN3 b - - 0 1 legal: proof: a4 f5 g4 b5 axb5 e5 f4 exf4 c4 d5 cxd5 a6 Bg2 f3 Bf1 f4 Bh3 g5 Bg2 a5 Bf1 Ra6 Bg2 Rf6 Bf1 Rf5 gxf5 Bd7 Nh3 Be6 Ng1 Bc8 Kf2 g4 Nh3 g3+ Ke1 g2 Ng1 Be7 Qa4 Bh4+ Kd1 Bg3 hxg3 Qd7 Ke1 Qe7 Qd1 Qd8 Kf2 Kd7 b4 h5 e4 c5 d4 h4 b6 h3 b7 a4 d6 Kc6 d5+ Kb6 f6 c4 d7 Kb5 d6 h2 e5 a3 e6 a2 f7 Qb6+ Be3 Ne7 d8R Bd7 f8Q Qc5 Na3+ Kc6 b5+ Kb6 Rc8 Ka5 b6 c3 Bc4 c2 Rc7 c1Q Nc2 Nec6 e7 Qd5 e8N Rh4 Qh8 Qg5 Bg8 Bg4 d7 Bf5 d8B Bg6 Be7 Qg4 Nd6 Rh5 Nc4+ Ka4 Rb1 Na6 b8N a1Q b7 Nab4 Na6 Qab2 b8Q Nd8 Qb6 Ra5 Qbd6 Qe5 Rb3 Rd5 Rc3 Rd3 Nb2+ Kb5 R3c6 Rb3 Rd7 Ka5 Rcc7 Kb5 Ne1 Ka5 Ne2 g1N Nd4 Ne2 Ndc2 Qd2 Bh4 Kb5 Rg7 Ka5 Be7 Nd4+ Kf1 f2 Kg2 Qf3+ Kh3 f1Q+ Kh4 Nf5+ Kg5 Qfe4 Kg4 Qff3+ Kg5 Qc5 Kf6 Qg4 Rf1 h1Q Rg1 Qhg2 Rh1 Qc1 Rh4 Qgd2 Qe5 Nf7 Ke6 Qb5 Bd4 Qc5 Kd7 Nd8 Qd6 Qce5 Be3 Kb5 Kc8 Ka5 Nbd3 Ka4 Nb2+
2n3K1/1q1N2n1/1qbBR3/3RQ3/2n4b/2QBP1N1/pkb1QNB1/R2b1Qb1 b - - 0 1 illegal: No possible last move, all moves rejected
BBqNQ2r/bp3R2/R1B3kr/4Pb1R/1bQ2QNq/b3Nb2/q7/R5K1 b - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 b4 d5 cxd5 e5 fxe5 axb4 Qb3 f4 Qd1 Nh6 h3 Nf5 gxf5 Nd7 h4 g4 Ba3 Nc5 Bb2 Ne4 Bc1 Ng5 hxg5 Ra6 Rh4 Ra3 Rh1 Ra8 Kf2 Kf7 d4 h5 e4 c5 a4 h4 e6+ Kg7 e7 b3 e8Q h3 f6+ Kh7 g6+ Kh6 d6 b2 d7 h2 f7 c4 d5 c3 d6 c2 g7 Rh7 g8Q Rg7 a5 Rh7 a6 Ra7 Qd2 Qg5 d8R f3 d7 Be7 f8R Rh8 Nh3 Bb4 Nc3 b1Q Nd5 Qa2 Bg2 g3+ Kf1 f2 Ne3 Qh5 Qc4 Qh4 Rf7 Kg6 e5 Ra8 a7 Rh6 Ba3 c1B Bc6 Rb8 a8B g2+ Ke2 g1B Kf1 Bf8 Bc5 Ba3 Ba7 Bfb4 Qdd4 Qg4 Qf4 Qh4 Kg2 f1B+ Kf3 Be2+ Kg2 Bg4+ Nf2 Bh5 Kf1 Bf3 Nfg4 Bf2 Qf8 Bg1 Re8 Bf2 d8N Bf5 Ree7 Rc8 Bb8 Bg1 Qe8 Bf2 Rg1 h1Q Rd7 Q1h2 Rh1 Bg1 Rd5 Qhc2 Ra5 Bf2 Ra6 Bg1 Ng2 Ba7 N2e3 Qc3 Kg1 Qcc2 Qe7 Qc3 Ne6 Rch8 Qe8 Qcd2 Rh2 Qd7 Nd8 Qc8 Rh3 Qg5 Rh5 Qf6 Rc1 Qh4 Ra1
b1kbR2B/2B1N3/r3bKN1/1RqB1QQ1/N1rR4/2B1r1P1/1b1Q3p/br6 b - - 0 1 illegal: No possible last move, all moves rejected
1b1B1N2/2NQ1q2/3N3B/1R3b2/BK1NQ1r1/2n1p2n/1pbk1RPR/2r3Qr b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 Kd2 Kd7 a4 h5 f4 e5 a5 b5 a6 b3 Kc3 e4 f6 h4 c6+ Kd6 a7 Kc5 c7 b2 f5 h3 d6 h2 f7 Nf6 d7 Qe8 d8B Rh3+ Nf3 Rg3 g6 Bh6 f8N Qf7 g7 Nh5 g8Q Nd7 f6 Nf4 Qh7 Nh3 Ra5 Nb6 Na3 b1B Nc4 Rg4 Nd4 Bc2 Nd6 Bf5 c8Q+ Kd5 Bd3 Bf4 Qg1 Na4+ Kb4 Nc3 Qd7 Rc8 a8N Be5 Bh6 e3 Be2 Bf4 Bd1 Bg3 Ne8+ Ke4 Nac7 Kd3 Nd6 Kd2 Qg6 Bcd3 Ba4 Bc2 Kc5 b4 Rb5 b3 Kb4 b2 Qh7 Be6 Qe4 Bf5 Nfe6 Qg8 f7 Be5 f8R Qf7 Rh8 Bg3 Nf8 Be5 Qb1 Bg3 Rf1 h1R Rf2+ Ne2 Na6 Bd1 Ne8 Bb8 Bg7 Ng1 Rh2 Nh3 Bh6 Bb3 Qf1 Rc1 Nd6 Bd1 Qg1 Bc2 Rf1 Nc3 Nc7 Rg8 Rf3 Rg4 Rf2+
R4n2/8/3BRrb1/n1q1pk2/2R2Nq1/1PBNbB2/3QKpB1/q2QN1Qr b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 fxg5 h5 g4 b4 gxh5 b3 axb3 Be6 b4 Bg4 b5 Bxe2 h4 Kd7 d4 c5 h6 a5 b3 f5 h7 e5 g6 a4 d6 Ke6 b6 f4 g7 f3 d5+ Kf6 b7 c4 d7 c3 d6 c2 h5 a3 h6 a2 Nh3 Bb5 Nf4 Bc4 Nd2 Be7 Nd3 f2+ Ke2 Qa5 d8N Qb4 d7 Qa4 Nf3 Bb5 Rh4 Ba6 Bd2 c1Q Ne1 Qc3 Rc4 Ra7 Ne6 Qc1 d8Q Nc6 b8B Rd7 Bg2 Kf5 Nef4 Na5 Bc3 Bc5 Bd6 Ne7 g8B Be3 B8d5 Ng6 Bdf3 Rf7 Qg8 Rf6 Qg7 Re8 h8R Nf8 h7 Qca3 Rg8 Qc5 h8Q Ree6 Rc1 a1Q Qhh6 Bb7 Qg3 Be4 Qgh2 Re7 Qg1 Rh7 Rc2 Qd7 Ra2 Rh8 Rg7 Qe6 Re7 Qg8 Re6 Qg4 Qg7 Rh1 Qd7 Kg5 Qd2 Bg6 Raa4 Kf5 Qd1 Nc6 Ra8 Na5 Qa7 Nb7 Qa2 Na5 Qad2
bNK3QQ/BrnR4/P1r1RQ2/2qR4/n3QN1b/1n2B2p/3q2p1/2B3kN b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Bd6 f4 Ba3 fxe5 Bf8 g4 f5 h4 g6 h5 Ra7 Bh3 Ra6 hxg6 Ra7 g5 Ra8 Bg4 fxg4 Kf2 Kd7 Kg3 b5 Kf4 h5 Kf5 c5 a4 c4 d4 h4 e4 g3 a6 b4 a5 h3 g7 c3 a7 c2 d6 Kc6+ e6 g2 g6 b3 a6 b2 e5 Kd5 d7 Nf6 g8Q Qe7 d8B Bg7 Nd2 b1Q Ne2 Qd6 Nf4+ Kc6 d5+ Kc5 Ra5+ Kd4 Qf1 Ke3 Bb6+ Qc5 d6 Qb3 d7 Qd3+ Ne4+ Qd2 d8B Nfd7 e7 Rh6 Ke6 Qd4 e8N Nc6 N8f6 Bf8 g7 Rh4 Rd5 Rb8 a8Q Rh6 Ba7 Rh7 Nf2 Be7 Bdb6 Rh6 Qh8 Rb7 g8Q Nb4 Bc5 Bd8 Kd6 Kf3 e6 Nb6 e7 Na4 e8R Qc4 Be3 Qc5+ Ke5 Rg6 Nd7 Rc6 Nb8 Bh4 Rg1 Bf5 Re6 Be4 Rh1 Qc4 Rd7 Nd5 Rg1 Nc7 Rd5 Rc5 Kd6 Rc6+ Kd7 Qcb4 Kc8 Qc5 Bb2 c1N Rh1 Nb3 Bc1 Rb5 Rd7 Rcb6 Qd5 Rc6 Qde5 Rb7 Qc4 Rb4 Qef6 Rb7 Rd1 Bd5 Qgf8 Kg3 Qe4 Kh2 Q8d8 Qda5 Rd3 Kg1 Qdg8 Qd2 Rd4 Bc4 R4d5 Bd3 Qef5 Be4 Q5g6 Bf3 Qe4 Rbb6 Qc4 Rd6 Rh5 Ba8 Rd5 Rb7 Qe4 Rc6 Nh1+
rqNRq3/2NB1P2/3Q4/2bKbRnk/Q4N2/3pB1B1/np1QN3/4nRr1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 b5 dxc5 f5 e4 Ba6 exf5 axb4 a4 b3 Nf3 b4 Ng1 Bb5 axb5 Qa5 Qf3 Qb6 Qd1 Qd8 Kd2 Kf7 Kd3 e5 Kc4 g5 f4 d6 h4 e4 c6 b2 f6 e3 h6 Kg6 c7 e2 c8N e1B h7 b3 b6 g4 f5+ Kh5 f7 Bb4 b7 Qc7+ Kd5 Ra7 c4 Nh6 f6 Nf5 c5 Qa5 Ne2 g3 Be3 g2 Qd2 g1N Na3 b1Q Bh3 b2 Nb5 Qe1 c6 Qg3 c7 Bc3 Rf1 Rg8 h8R+ Nh6 Bd7 Be5 Rf5+ Rg5 Ne7 Qa4 c8N Na6 b8B Ra8 Ng6 Qgf4 Nc7 Nf3 Rf1 Ne1 Rg8 Be7 Rd8 Qfb4 f8Q Nf7 Be6 Qe8 Ngf4+ Kg4 h5 Qb7+ Kc4 Nb4 h6 Na2 h7 Rg7 h8Q Ng5 f7 Qa7 Bd7 d5+ Kb3 d4 Kc4 d3 Kd5 Bc5 Qd6 Qb6 Qh1 Rg8 Qe4 Rg6 Ba7 Qb8 Qa4 Rg8 Bf2 Rg7 Bg3 Rg8 Nh3+ Kh5 Bb6 Rg6 Nhf4+ Kg4 Qb5 Nh3 Nfe6 Bb4 Be3 Bc5 Bgf2 Rg5 Qa4+ Kh5 Rf3 Rg4 Rf5+ Ng5 Bh4 Rg2 Bg3 Rg1 N6f4+
3BR1rN/1p4B1/QbR3pN/1R5Q/4Bk2/nbq3r1/1P2q1bQ/K2nBN2 b - - 0 1 legal: proof: e4 d5 g4 c5 d4 f5 exf5 h5 gxh5 a5 c4 cxd4 cxd5 a4 Qxa4+ Nd7 Qa7 Nb8 Kd1 Kd7 Kc2 Kd6 h4 Ke5 f4+ Ke4 a4 e5 h6 g6 d6 Nf6 a5 Nbd7 h5 Nc5 a6 Be7 h7 Qf8 h6 Rb8 d7 Qg7 d8B Ng4 f6 Ne6 f7 Bf6 f8Q Rg8 h8N Ra8 h7 Nh6 f5 Nf4 Nd2+ Ke3 Kb1 e4 Nh3 Rb8 Qd6 Nd3 Ng5 Ne1 Qh2 Ng4 Bg2 Nf2 Ra5 Ra8 Rb5 Nd1 Ngf7 Nc2 Nh6 Na3+ Ka1 Be5 f6 Bc7 f7 Bb6 f8R d3 Re8 Bh3 Qab8 Qd4 a7 Qc3 Qbe5 Rc8 Bf3 Bg2 a8Q Rc5 Qeh5 Rg5 Qa4 Rg3 Qa6 Kf4 Nf1+ e3 Be4 d2 Rg1 e2 Rh1 Ne3 Rg1 d1B Bd2 e1Q Rh1 Qf2 Be1 Bb3 Rg1 Bh1 Rg2 Qf3 Rc2 Nd1 Rc1 Bg2 Rc2 Qd2 Rc6 Qfe2 N8f7 Qd7 h8B Qd4 Bg7 Qc3 Nh8
1n1n2N1/P4Q1K/b1R3r1/1Q1Qq3/3R4/nq3ppR/B3rBQ1/kb3NNB b - - 0 1 legal: proof: c4 a5 f4 h5 d4 e5 fxe5 c5 b4 axb4 g4 d5 cxd5 c4 gxh5 Bc5 dxc5 Rh6 Nf3 Rh7 Ng1 Rh8 Kd2 Ke7 Ke3 f5 Kf4 b5 Kg5 g6 h4 f4 a4 f3 e4 b3 c6 b4 e6 Kd6+ e7 Ke5 d6 b2 a5 c3 d7 b3 h6 c2 a6 Qb6 e8N Bb7 d8R Qa5 c7 Qa3 c8B Nd7 a7 Qa6 h5 Qd3 h7 Kd4 h6 Kc4 e5 Ba6 e6 Kd4 e7 Bb5 Be3+ Kc4 Nd2+ Kc3 Nf6 c1Q e8Q b1N Qf7 Kb2 Rh3 Nb8 Ra6 Qcc4 Be6 Qdc3 Rc6 Ne7 Bf2 Na3 Rd4 Re8 h8Q Ba6 h7 Ka2 Kh6 g5 Kg7 b2 Ng8 b1B Bg2 g4 Bh1 g3 Nf1 Ka1 Qb3 Qb2 Qb5 Qcb3 Kh6 Qe2 Qhe5 Qe4 Qed5 Qe5 Rc7 Nec6 h8Q Nd8 Rc6 Nc2 Kh7 Na3+ Bf5 Re6 Qhg7 Rg6 Be6 Nd7 Qgf6 Rc8 Qf4 Nb8 Qd2 Rc7 Be1 Re7 Qg2 Qee3 Bf2 Qec3 Bf5 Re2 Bc2 Qe3 Bd3 Qe5 Bc4 Qa4 Ba2 Qb4 Rc2 Qb3 Rc6
2Q4K/2r4b/n1n2p1p/2nN3R/1r2R1Q1/1N1RPqnB/1QN1B2b/1Q2kB2 b - - 0 1 illegal: No possible last move
k1bQ1nNR/2BQ1N2/RP2b2n/4p3/B3K3/p2n3R/1r2n2B/1Nr1q1RQ b - - 0 1 illegal: No possible last move, all moves rejected
2bN1qB1/4kr1n/1KR2B2/B3q1r1/Q1Rp2Qq/1R1PRbp1/1b1N2N1/5Q2 b - - 0 1 legal: proof: g4 b5 h4 c5 f4 f5 gxf5 b4 a4 c4 h5 c3 f6 b3 f5 Qb6 bxc3 b2 c4 Qd6 c5 Qh2 e4 Nc6 e5 Nd8 e6 Nf7 exf7+ Kd8 Na3 b1N h6 Nc3 Nb1 Nb5 axb5 Qxh6 Qf3 Qf4 Qd1 Qh2 c4 a5 b6 h5 b7 g5 b8R e5 c6 d5 c5 e4 c7+ Kd7 c6+ Kd6 Ra4 d4 Rc4 a4 Nh3 h4 Rb3 g4 Nf4 g3 Ng2 a3 Ke2 e3 Kd3 Bd7 c8R h3 c7 Be7 f8Q a2 f7 a1Q f6 e2 Qe8 e1Q f8B Ra6 f7 Bc6 Bg7 Bf8 Bf6 Be7 f8N Qa3 Ne6 Bb7 Nd8 Rh7 Qa4 Ra5 Bb2 Ba6 Bc3 Rg5 Ba5 Qe5 Be2 Bb7 Re1 Rf7 Bf3 Qh1 Re3 h2 Qf1 Bf8 Bd5 Qb4 Bg7 Nf6 Be6 Nh7 Bf6 Qbc5 Bd5 Qa3 Rc6+ Kd7 Kc4 Bh6 Kb5 Qf8 d3 Ke8 Bg7 Ke7 Kb6 Ba6 Nd2 Bb7 Ne1 Qhe4 Bc4 h1B Ng2 Qh4 Be6 Rf6 Bg8 Rf7 Ra8 Ba6 c8Q Bb7 Qg4 Bc8 Nf4 Bd5 Ng2 Bf3 Bf6+ Ke8 Rc7+ Bd7 Rac8 Rgg7 Re2 Be3 Rcc3 Rg5 Nc4 Bc1 Nd2 Bb2 R8c6 Bf5 Re3 Bc8 Bh8 Ke7 R3c4 Rff5 Bg7 Rf7 Bf6+
Q6R/1Qrr2Rp/1N1p3q/r2Q1kB1/1b6/n2n4/KRPq1B1Q/N1N1B1q1 b - - 0 1 legal: proof: d4 b5 e4 f5 exf5 Kf7 a4 c5 dxc5 g6 axb5 Bg7 f6 Ke6 f7 Bf8 g4 Bg7 f4 Bh6 f5+ Kf6 Bd3 Ke5 f6 Bf8 Bf5 Bb7 h3 Bf3 g5 Bg4 hxg4 gxf5 Bd2 Kd5 Bc1+ Ke6 Kd2 a5 Kc3 f4 Kb3 a4+ Ka2 f3 b4 f2 g6 f1Q g7 a3 c6 Qf2 g5 Qd4 c7 Ra6 c8N Ke5 g6 e6 b6 Ra7 b7 Nc6 b8Q+ Qd6 b5 Nd4 b6 Ra4 b7 Nc6 Nb6 Na7 Bg5 Rh4 Nd2 Rc4 Nb3 Nh6 g8Q Nb5 g7 Kf5 Ne2 e5 Rg1 e4 Rb1 e3 Nec1 e2 Rb2 e1Q Na1 Ng4 Qd5+ Ne5 Qa7 Qd1 b8Q Rc7 Qab7 Be7 Rg4 Qg1 f8B Qe6 f7 Bb4 Bc5 Qh6 f8B d6 Bfe7 Qf8 Bh4 Qd2 Q8a8 Rd7 Qg2 Nd3 Beg5 Qf6 Qh3 Qh6 Bcf2 Rc7 Qc4 Rd8 g8R Rdd7 Rg7 Rc8 Qh2 Rcc7 Kb3 a2 Qcd5+ Ne5 Be1 Na3 Bhf2 Rd8 Re4 Rdd7 Qdc6 Nd3 Re8 Bc3 Rb8 Bb4 Rh8 Nc4 Ka4 Na3 Nab3 a1R Qc4 Ra2 Na1 Nb5+ Kb3 Ra5 Qcg8 Na3 Ka2 Ra4 Qb3 Ra5 Q3d5+
2B1Nqbb/rNN1rpn1/p5q1/1R4RP/qBR1B2N/3k2K1/3r4/Q1QQ4 b - - 0 1 legal: proof: b4 b5 a4 e5 axb5 d5 f4 exf4 c4 h5 cxd5 h4 b6 a6 b7 h3 b5 Bc5 b6 Ba3 gxh3 Bd6 h4 Nc6 h5 Na7 bxa7 Bf8 Kf2 Kd7 b8R Kd6 e4 Ke5 h4 Kd4 h6 c5 e5 g5 h5 c4 h7 g4 d6 c3 d7 f3 e6 c2 e7 Ke4 e8N Nh6 d4 Be7 d5 Bf8 d6 Bb7 Kg3 f2 Ba3 c1Q Bh3 f1R Nc3+ Ke3 Nf3 Re1 Rg1 Be4 Nh4 Bg7 Nb5 Qc6 Nbc7 Qa4 Qc1+ Kd3 Rb5 Bc3 Bb4 Nf5+ Kf2 Rg8 h8Q Ng7 Kg3 Bh7 Rb1 Qe7 d8N Qf8 d7 Re7 Nb7 Rd8 a8B Bb2 Kf4 g3 Bg4 g2 Kg3 Bf6 Rb2 Bd4 Rc2 Bf6 Rc4 Ba1 Rh1 Bd4 Rh2 g1Q+ Rg2 Bc3 Be6 Qb6 Bg4 Qg6 Rg1 Ne6 Qe5 Ng7 Qee1 Rh8 Qa1 Bg8 Qec1 Rb8 d8Q+ Bd4 Na5 Rb7 Qd6 Ra7 Nb7 Rh6 Qd8 Qh7 Bc8 Rd6 Kh3 Qg6 Rgg5 Nf5 Kg4 Bh8 Qd7 Ng7 Kg3 Re2 Qg4 Rd2 Qgd1 Rd7 Nd8 Re7 Bh1 Re1 Nb7 Re7 Be4+
RRB2Q2/1qRKp3/bP6/rB6/N7/Bq1nQrrN/1pN2Qq1/1n3N1k b - - 0 1 legal: proof: b4 a5 h4 f5 c4 d5 cxd5 b5 e4 g5 exf5 gxh4 Be2 Bg7 Bf1 Bc3 bxa5 b4 a3 b3 Bb5+ Kf8 Bf1 Bb4 axb4 Ke8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 f4 c5 d4 h5 g4 c4 a6 c3 d6 h3 a7 h4 d5 c2 f6 h2 d7 h3 f5 Rh4 g5 Na6 Kc6 Rh8 g6 Rh6 g7 Qa5 d8R Be6 d6 Qe5 f7 Rh5 f6 Rg5 b5 Rb8 a8N Bc8 d7 Qf4 Qe1+ Qe3 Nb6 Nc5 Nd2+ Kf4 Ra8 Ba6 f8N Rd5 f7 Nf6 g8B Nfe4 Ba3 c1R Na4 b2 b6 Qb3 Ne6+ Kg4 Rf8 Rc3 d8Q Rg3 Nd4 Nc3 Qf2 Nb1 Qc7 Rh5 Qe5 Rd8 Bc4 Nd3 Qee3 Ra5 Bb5 Rd5 Rfb8 Rf5 f8Q Rf4 Nge2 Kh4 Rc1 h1Q+ Bd5 h2 Nf1 Kh3 Kc7 Rf5 Be6 Qb7+ Kd8 h1Q Rc7 Qhf3 Bc8 Qg2 Kd7 Rf6 Nc2 Rff3 Nd2 Kh2 Nf1+ Kh1 Ng1 Rg7 Nh3 Rg6 Ne1 Rgg3 Nc2
1B1R1KQ1/1kp1B2Q/q5rN/3n1Bnq/R2b3p/1P4Qr/1r4Nn/3R2NB b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kd7 Kd3 Kc8 Kc4 h5 d4 e5 d6 a5 Kd5 f3 Ke6 f2 Kf7 e4 b6 a4 d7+ Kb7 f6 e3 d5 e2 b3 e1Q d6 h4 g6 a3 g5 a2 g7 Ne7 g8B Qe2 g6 Ra7 g7 Rh5 Qc2 Nf5 Nc3 Rh7 Bg2+ Ka6 b7 f1N Ba3 N5g3 Nd1 Nd2 Ne3 Rh6 Qh7 Qc8 d8Q Nc6 b8B Kb7 d7 Ngf1 Be7 Nh2 Bh3 Ra4 Ng2 Ne4 Bf5 Ng5+ Ke8 Ra8 Bd5 Rg6 g8N Bg7 f7 Qh5 f8Q Bd4 Qfg7 Ra6 Rd1 a1R Kf8 R6a2 Nh6 Rb2 Qe5 Rc1 Qg3 Rc3 Qe8 Re3 d8R Qe6 Bf3 Qc4 Qef7 Qa6 Qfg8 Rc3 Ra1 Rd3 Ra4 Rc3 Bd1 Nb4 Bf3+ Nd5 Nh3 Rc5 Rd1 Rc3 Ng1 Rd3 Ne3 Rc3 Bh1 Rd3 Ng2 Rf3 Qe1 Rh3 Qg3
1KN2R2/1R1br1qn/1nQ2P2/4p2k/b1B2pnN/n4R1R/1N4nB/3B2QQ b - - 0 1 legal: proof: a4 a5 e4 d5 c4 b5 axb5 f5 cxd5 Ra6 h3 Rf6 g3 f4 h4 Rf5 exf5 g5 Qb3 gxh4 Qc2 h3 Qd1 Bh6 g4 Bg5 Ne2 Bh4 Ng1 Bg3 fxg3 Qd7 Bc4 Qd6 Bf1 Qd8 Kf2 Kf7 Kf3 c5 Ke4 e5 d4 h5 b4 c4 b6 a4 f6 Kg6 b7 h4 g5 h2 g4 h3 b5 a3 b6 c3 d6 a2 Kd5 c2 d7 Qf8 d8N Qe7 Be2 Rh4 Be3 c1N Nc6 Rh7 Na3 Rf7 Na7 Na6 Kc6 Qb4 b8Q Nc7 d5 Rh7 b7 Ne8 d6 Be6 d7 Qd4 d8R Qd3 Nf3 Qb1 Nc4 Ng7 Kc7 Qb3 Qc8 Ne7 b8R Bd7 Rb7 Nd5+ Kb8 Ne6 Rf8 Nb6 Bg1 Re7 Nb2 Nd3 Qc6 Ne1 Nc8 Ng2 Rb1 a1N Nh4+ Kh7 g6+ Kh6 g7 Qg3 g8B Ng5 Qe1 Nc2 Bd1 Na3 Bc4 Nh7 Rc1 Kg5 Rc3 Kh6 Rf3 Kg5 Qd6 Kh6 g5+ Kh5 g6 Ba4 g7 Qg4 g8Q Qg7 Be3 Bd7 Rhf1 h1N Bg1 h2 Qc6 Nf2 Rh3+ Ng4 Rff3 h1B Bh2 N2e3 Rf1 Bf3 Rf2 Ng2 Qh1 Be4 Rff3 Bc2 Qgd5 Bb3 Qd4 Ba4 Qdg1
3QNr1Q/r2Brnn1/Q7/1R2nB2/PR2K2R/qkb2N1N/pn1Bp3/4N3 b - - 0 1 illegal: No possible last move, all moves rejected
3q4/1B1Q2n1/K1pN2r1/PR1R1r1p/1B1Qb2N/3rB2b/1k1r1R2/1b1Q1NR1 b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 Bd7 h4 Bh6 e5 Bg5 hxg5 Bc8 Kf2 Nd7 Ke1 Ndf6 exf6 Kf7 Bb2 Kf8 Bc1 Ke8 Ke2 Kf7 Kd3 b5 a4 h5 a5 e5 g6+ Ke8 g7 Kd7 d6 Kc6 d7 Kc5 f7 b3 f8R Kb4 f6 g3 f5 b2 f7 g2 f6 Rh6 Nf3 g1R Nh4 Qe8 d8Q Qc6 Bg2 Qb7 Qd7 Re1 Rd8 Rg6 f8B+ Ne7 g8Q Re2 f7 Qb8 Qg7 e4+ Kd4 e3 Bb7 c6 Rg1 Rh2 d3 e2 Be3 e1R Nd2 b1B Nf1 Bc2 Rb1+ Ka3 Kc5 b4 Kb6 b3 d4 b2 d5 Be4 d6 Nf5 Qgd4 Ng7 Be7 Rc2 f8R Rd2 Rf2 Ree2 Qe6 Rd3 d7+ Qd6 Bf8 Rb8 Ka6 Red2 Qh3 Ka2 Qf5 Qf6 Bb4 Qg5 Rf8 Qe7 d8N Qe8 Nf7 Qd8 Nd6 Be6 Qb5 Bh3 Qf5 Rc8 Rg8 Rc7 Re8 Rf7 Re5 Rff6 Qd7 Rf5 Rc1 b1B Rb5 Qc7 Rcc5 Qd8 Qc4+ Ka1 Rd5 Kb2 Qd4+
1RKBN3/Rp2Q3/r2qB3/b2Q1Pp1/q2nb1B1/1B2RQ2/NNb4b/1k5n b - - 0 1 legal: proof: c4 a5 g4 g5 d4 f5 gxf5 d5 cxd5 e5 dxe5 Nc6 b4 axb4 h4 Nb8 h5 Ra7 Qd4 Ra6 Qd1 Rg6 hxg6 Bd7 Nc3 Be6 Nb1 Bc8 Kd2 Ke7 Kd3 h5 Kc4 c5 Kb5 c4 a4 h4 f4 b3 e4 b2 e6 Kd6 e5+ Kc7 e7 h3 e8N+ Kd7 e6+ Ke7 g7 h2 a5 c3 a6 c2 a7 Qd6 a8R Nc6 Kb6 Qb4+ Kc7 Ne5 Bh3 Nc6 Na3 b1Q Bg4 Qb5 Rb8 Qa4 Ne2 Qab4 Bb2 c1B Nc3 Qc4 Na2 Qa4 Re1 h1B Qf3 Qd3 Re3 Bd2 Nc4 Nf6 g8B Nh5 Bc3 Qd4 Nb2 Rh6 Ba5 Ng3 Bb6 Ba5 Bf7 Bg7 d6+ Kf8 d7 Ke7 Qd5 Be4 Bg8 Nh1 f6+ Kf8 f7 Ke7 Nc4 Bc2 Nb2 Qd3 Qf3 Nd4 f5 Be5+ Nd6 Kf6 e7 Bh2 d8Q Be6 f8Q+ Bf7 Kc8 Qa6 Qfe8 Bd5 Be6 Bde4 Qg8 Ke5 e8B Qd3 B8f7 Qda3 Ne8 Qd6 Bd7 Re6 Qe7 Kd5 Bd8 Kc5 Nc1 Kb4 Ra2 Rg6 Bb3 Rf6 Bde6 Rg6 Ncd3+ Kc3 Nb4+ Kd2 Ra3 Kc1 Na2+ Kb1 Bd7 Qdb4 Qd5 Ra6 Be6 Qd6 Qf1+ Be1 Re2 Ra7 Qf8 Qb5 Qe7 Ra8 Ra6 Qa4 Qf3 Ba5 Re3 Be1 Rc6 Ra5 Ra6 Bb4 Ra7 Ra6 Bd7 Ba5 Be6
1QrnBQ2/1BR1B2P/1kn2bQ1/2Nn1N2/p1Rn3b/5R2/1KN1rp2/R3n3 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 exf4 a4 g5 axb5 d5 cxd5 h5 Qa4 Qf6 Qb3 Qh6 Qd1 h4 h3 Qh5 gxh5 g4 Ra6 g3 Ra1 Bg4 hxg4 Be7 Ra3 Bb4 Ra1 Bf8 b4 Kd7 e4 c5 d4 Kc7 Kd2 a5 Kc3 f5 g5 g2 e5 a4 b6+ Kb7 d6 c4 g6 h3 h6 h2 b5 f3 g7 f2 e6 f4 e7 f3 e8B Na6 d7 Rd8 d5 Rh7 d6 Nc5 Na3 Ra8 d8N+ Kc8 b7+ Kb8 d7 Kc7 b8R Ne7 g8R Nb7 Rc8+ Kb6 Kb2 Nc6 Rg7 Be7 Ne2 g1N Qd3 Bf6+ Nd4 Ne2 Ne6 Nbd8 Bg2 f1N Bg5 Ne3 Qg6 Nd5 Rhf1 h1N Nc2 Nf2 Nc5 Rh8 Rc7 Rc8 h7 Rf8 Re7 Rg8 Re4 c3+ Ka3 Nd3 Nf5 Ne1 Rc4 Ned4 Bh4 Nb7 d8Q Rf8 Qd6 Nd8 Bg5 Rf7 Qf8 Re7 Bh1 Re2 Ka2 Ka5 b6 Kb5 b7 Kb6 Bf4 Bh4 Bd6 Bf6 Be7 f2 Rg1 Bh4 Rg3 Bf6 Rf3 Bh4 Kb1 Bf6 Na3 c2+ Ka2 c1B+ Nc2 Bcg5 Kb2 Na7 Bc6 Bh4 b8Q+ Ka5 Bb7 Nac6 Bg2 Kb6 Bh3 Re5 Bg4 Re6 Bh5 Re2 Qgg8 Bh8 Be8 B8f6 Qg6
1Q6/5pk1/p2K1Nnb/1Q2Rr2/nRNQ1B2/Q3b1rr/1B5P/1nRN1B1r b - - 0 1 legal: proof: c4 h5 d4 d5 cxd5 Kd7 g4 hxg4 e4 b5 a4 Nc6 axb5 Nb8 d6 Ke6 d5+ Ke5 d7 Kd6 b6 Ke5 Bh3 Bb7 Bf1 Kf6 f3 e5 d6 Bd5 exd5 e4 Qc2 e3 Qa4 Qe7 Qd1 Qe4 fxe4 Kg5 Ra6 Kg6 Ra1 Kf6 Ke2 c5 Kd3 g5 Kc4 g3 d8R e2 b4 e1N e5+ Kg6 b7 g4 e6 g2 b5 a6 d7 g3 b6 Rh3 d6 Rh5 e7 Bh6 e8N Ra7 Nh3 g1R Qd4 g2 Nf2 Bf4 Nf6 Bh6 Re8 Kg7 d8Q Nd7 b8B Ra8 b7 Nf3 Nd1 Ne7 Na3 Rf5 Bb2 Ng6 Re5 Nd2+ Kd5 c4 Rc1 c3 Nc4 c2 Qe8 Nc5 d7 Na4 d8Q Nb1 Qd6 Be3 Qec6 Bh6 Bc7 Rh8 b8Q Be3 Qa3 Rh3 Qcb5 Bh6 Bd3 Rgf1 Kd6 g1R Be2 Rgg3 Rg1 Re1 Rf1 Be3 Rf4 Rh1 Bf1 Nbc3 Rb1 c1B Rg4 Bcd2 Rc1 Nb1 Ba5 Be1 Bd2 Bh6 Rge4 Bf2 Bf4 Bg1 Re3 Bf2 Rb3 Be3 Rb4
3br1R1/p3QNQR/4p2P/2n1b3/R4k2/r2nRr1b/Q4N1K/2bBBB1N b - - 0 1 legal: proof: e4 d5 g4 b5 c4 c5 cxd5 f5 exf5 h5 a4 hxg4 axb5 Na6 b6 Bd7 b7 Qc8 bxc8B Rb8 Bb7 Rc8 Ba8 Rc6 h4 Kf7 f4 Kf6 Kf2 g5 Kg3 e6 d4 c4 b4 c3 d6 c2 h5 Bg7 d5 Nc7 b5 Na6 b6 Rc4 b7 Ba4 b8R Rd4 d7 Rd3+ Kh2 Rd4 d8N Bh6 d6 Rc4 d7 Rc3 Rb3 Rc5 Nd2 Bc6 Nh3 Ra5 Re3 Nc5 Nf7 Bg7 d8R Ne7 Nf2 Ra3 Qe2 Nd5 Rg8 Nb4 Ra2 Bg2 Bf3 Bh3 Nde4+ Ke7 Qc4 Nbd3 Bd1 Be5 Ng3 Kf6 Bd2 c1B Qa4 Nb3 Be1 Nbc5 Rg7 Rd8 Rg8 Re8 Qc2 Rc3 Ra4 Rb3 Ne2 Ra3 Qa2 g3+ Kg1 g2 Kh2 g1R Ng3 Ke7 f6+ Kd7 f5 g4 Nh8 Kd6 f7 Re7 f6 Re8 Bfe2 Rf1 f8Q+ Re7 Qg7 Re8 Qc2 Kd5 f7 Kd6 f8Q+ Kd5 Ne4 Rf4 Nf2 Rf3 Qff7 Kd6 Bf1 Kd5 Kg1 Kd6 Rh2 Kd5 Ngh1 g3 Qe7 g2 Nf7 Rf6 Rg3 Rf3 Ra6 Kd4 Qa2 Ke3 Ra5 Bg4 Rhh3 Kf4 Kh2 Bf5 h6 Bg4 Rh8 Bf5 Rh7 g1B+ Kg2 Bh2 Rg5 Bg3 Kg1 Bh4 Kh2 Bg4 Rg3 Bh3 Ra4+ Bd4 Re5 Bf6 Re3 Be5 Qh8 Bc7 Rg8 Bd8 Bb4 Ba1 Qg7 Be5 Be1+
q2B3Q/5K2/4B1nQ/1n6/pbRRNN2/k1qQpBn1/1n1RP3/1q2NN1r b - - 0 1 legal: proof: c4 a5 b4 f5 g4 fxg4 a4 b5 axb5 d5 cxd5 Qd6 Bg2 Qd7 Bf1 Qd8 h3 g5 Bb2 a4 Nc3 g3 Bc1 g4 Nb1 Ra5 bxa5 g2 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Bb2 Qd6 Bc1 Qd8 d4 Kd7 Kd2 Kd6 Kd3 h5 Ke4 e5 Kf5 c5 Kg6 c4 f4 c3 a6 c2 f5 h4 a7 e4 a8B h3 f6 h2 g5 Nd7 b6 Qc8 b7 Nh6 b8Q+ Qc7 f7 Ng8 Ra2 Ngf6 Nf3 g1N Bh3 g2 Ne1 Rh4 Nd2 Nf3 Be6 g1Q Nf1 Nh5 Qd3 Bh6 Qh8 Ndf6 f8Q+ Qe7 Bb7 Kc7 d6+ Kb6 d5 Kc5 d7 Kb4 d8R Nd7 d6 Ng3 Bf4 c1N Rd2 e3 Rc8 Nc5 d7 N1b3 d8N Nbd4 Bc7 Nb5 Be4 Qd6 Kf7 Qd4 g6 Qc3 g7 Ka3 g8N Bg7 Qfd6 Bf8 Nf6 Qg2 Rg1 h1Q Bb7 Rh2 Ne4 Nh4 Qf4 Ng6 Qfh6 Nd7 Ba5 Bb4 Rc4 Nb6 Rd4 Nc4 Bc6 Nf5 Bb6 Qf3 Rg4 Nb2 Neg3 Nc7 Rc4 Kb3 Bed7 Rh5 Nh2 Nge7 Ne6 Qhf1 Nc2 Qe1 Nhf1 Ng6 Rgd4 Qb1 Nf4 Nb5 Bd8 Rh1 Ne1 Ka3 Be6 Qe4 Ba8 Qc6 Bb7 Qc8 Bf3 Qa8 Ne4 Ng3 Qe5 Nh4 Qef6 Ng6 Qfh8
NR1n2QB/p4q1N/Q3N1r1/1BnQ4/1KP3qq/3Bn1p1/1R2R3/Nqb4k b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 exf5 b5 d4 cxd4 a4 Nf6 axb5 Ng8 f6 Kf7 h3 Ke6 f5+ Kd6 f7 Bb7 f6 Be4 Bd2 Bf5 Be3 Na6 gxf5 g4 Bg5 g3 Bc1 Nh6 Qf3 Rg8 Qd1 Rg4 hxg4 Ng8 Qd2 Rb8 Qd1 Qc8 Nc3 Bg7 Na4 Nh6 Nc5 Qc7 Nb3 Rh8 Nd2 Qd8 Nb1 Ng8 Nh3 Bh6 Ng1 Bf8 Kd2 Ke5 b4 Kf4 b6 e5 b5 d5 g5 h5 g6 h4 b7 h3 b8Q h2 g7 d3 Kc3+ d2 b6 Rh7 b7 Bd6 f8N e4 f7 e3 f6 e2 Ra2 e1Q Rb2 Qe3+ Bd3 Qe2 Qc8 Qb6 b8R Nc7 Nh3+ Kf3 Na3 Kg2 Nd7 Qf1 f8N Ne7 g8B Rg7 f7 Rg6 Nh7 Ne6 f8Q Qf7 Qa6 Bf4 Re1 h1Q N3g5 Nc5 Ne6 d4+ Kc4 Qb7 Nb6 Nc6 Na8 Nd8 c3 Qbe7 Kb4 Qeh4 Nc2 Qf1 c4 Kh1 Na1 Be3 Qh5 d1N Ree2 Bf4 Bd2 Ne3 Bc3 Qb1 Qe5 Ng4 Qg5 Bc1 Qfd6 Ne3 Qde5 Qf5 Bf7 Qf6 Be8 Qf7 Bf5 d3 Bb5 d2 Bd3 d1Q Qd5+ Qf3 Bh8 Qf1 Qde5 Qfg4 Qg7 Qf2 Qg8 Qf7 Qd5+
KRn5/nNr1N2b/4R1n1/6R1/kQ1Qr3/3r1Rr1/P2ppB1B/1r1N1BQ1 b - - 0 1 illegal: No possible last move, all moves rejected
1kQ1B1nN/1N3Bpn/5Q1P/r1N2rbR/8/p2QRr2/nQ4r1/2RK2Bn b - - 0 1 legal: proof: c4 h5 d4 d5 cxd5 Kd7 g4 hxg4 e4 b5 a4 Nc6 axb5 Nb8 d6 Ke6 d5+ Ke5 d7 Kd6 b6 Ke5 Bh3 Bb7 Bf1 Kf6 f3 e5 d6 Bd5 exd5 e4 Qc2 e3 Qa4 Qe7 Qd1 Qe4 fxe4 Kg5 Ra6 Kg6 Ra1 Kf6 d8Q+ Ke5 b4 a5 h4 f5 b7 c5 d7 Kd6 b5 a4 h5 c4 b6 a3 e5+ Kc5 e6 Kd6 e7 c3 e8B c2 h6 e2 Nf3 g3 Ng5 g2 Be3 g1N Nc3 c1N Qd3 f4 Na4 f3 Rh5 Ra7 Qc8 Be7 d8Q+ Nd7 b8R Ra5 b7 Nh3 Bg1 Nf2 Nc5 Na2 Rc1 Nh1 Bh3 Bf6 Be6 f2+ Kd2 f1R B6f7 e1R Kc2 Ke5 d6 Nf8 d7 Rf3 Qb6 Re4 d8N Re2+ Kd1 Nh7 Ra8 Be7 Ra6 Rg2 b8Q+ Bd6 Qb8b7 Be7 Qbg6 Bf6 Rb6 Rf5 Rb3 Be7 Rbc3 Bf6 Qb2 Rf3 Qdb1 Kd6 Re3 Rf5 Nge6 Bg5 Qgf6 Ne7 Qe4 Rf8 Qec2 Ng8 Ncb7+ Kd5 Nc6 Rf3 Ne5 Rf5 Ng6 Rf3 Nbd8 Kd6 Nh8 Rff5 Q8c4 Rf3 Nc5+ Kc7 Ndb7 Kb8 Q4d3 Rh2 Qe6 Rf6 Qcc3 Rff2 Bg6 R8f5 Qcf6 Rhg2 Bgf7 R2f3 Qc8+
3K4/p1nP1Q1R/B7/krB1Bnp1/1NQbQR1n/1qNB1p2/6rb/R4N2 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Bd7 gxf5 exf4 h4 Be6 h5 Bf7 Rh2 Nf6 Rh1 Bg6 hxg6 Ng8 Kf2 Kd7 Kf3 h5 Ke4 c5 Ke5 Kc7 Ke6 Kb6 b4 c4 e4 f3 d4 h4 g7 c3 e5 h3 f6 h2 d6 c2 d7 Nh6 g8B Nf5 f7 Qc7 d8Q Bg7 f8R Bh6 d5 Rh7 d6 Nc6 d7 Ng3 Nd2 Rf7 Qe8 Qc8 Ne2 Ne4 Nc3 Qb8 Bh7 Na5 Ba3 c1B Qb3 Bg7 Qc4 Ng3 Bhd3 Rf4 Ke7 Rh4 e6 Bb2 Rf4 Rh7 Qf7 Bd4 Bfe2 Nb7 Nf1 Nd8 Ke8 Nf5 e7 Kb7 b6 Nh4 b5 Rh5 Bc5 Ba3 Rg1 h1N Rg3 Rh7 Rh3 Ng3 Rh1 Ngf5 Rh3 Qd6 Rh1 Qd5 Rh3 Kb8 b7 Kc7 b8N Ne6 b6+ Kb7 Rh1 Nc7+ Kd8 Bc1 e8Q Rh8 Qa4 Qb3 Qac4 Bce3 Rh3 Bg1 Rh1 Ng6 Rh7 Bh2 Rg7 Rh4 Rh7 Rg4 Qe3 Ngh4 Qe5 Ne7 Qef5 Rg2 Q5g6 Nc8 Na6 Rb8 Qgf5 Kc6 b7 Nd6+ Ke7 Rg8 b8B Rg6 Qe5 Ndf5+ Kd8 Rd6 Qe4+ Rd5 Nb4+ Kb7 Bf8 Kb6 Bd6 Rb5 Be5 Nd5 Bbd6 Nc7 Be7 Qa2 Bc5+ Ka5 Qb3 Rb6 Ba6 Rb5 Bd3 Qa4 Qbc4 Qa3 Rb1 Qb3 Ra1+
4r2N/1K1kbP2/B3B3/2Q1QpN1/r3p1p1/B2bnn1N/qN1R1RR1/1Q2q3 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 f4 g5 fxg5 f5 e4 Qd6 e5 Qf6 exf6 Be6 Bh3 Bd7 Bf1 Bc8 Kf2 a5 Ke3 c5 b4 e5 h4 e4 d4 c4 g6 a4 h5 a3 d6 c3 d7+ Kd8 b6 c2 d5 a2 Kd4 Rh7 h6 Rf7 b7 Re7 Kc5 Bg7 Kb6 Nc6 b8Q Re8 h7 Nh6 h8N Na7 b5 Rg8 Ba3 c1Q Qe5 Nc6 Nd2 Na7 Nh3 Bb7 Rg1 Qb1 Rg2 Rc8 Qc1 Rc2 Nc4 Rc3 Nb2 Rd3 Qc5 Bf8 g7 Rd4 Bd3 Qh1 Rf1 a1Q Rff2 Be7 Bc4 Re8 g8B Qh2 Be6 Qb1 f7 Qe1 Bd3 Bc6 Ka6 Ng8 b6 Nf6 b7 Ra4+ Kb6 Bd6 Ba6 Bb5 b8Q+ Ke7 d8N Nc6 Kb7 Nd4 Qba7 Bd3 Qab6 Nf3 Qb3 Kf8 Qbb6 Be7 d6 Nd5 d7 Ne3 Qb3 Qhg1 Qbc2 Qh1 Qb1 Qhf1 Nc6 Qee2 d8R Qfe1 Nd4 Qc2 Ne2 Qc4 Ng5 Qa2 Rd5 Bd6 Nf4 Ke7 Nfh3 Kd8 Rd4 Ke7 Rc4 Kd8 Rcc2 Be7 Bb3 Kd7 Rcd2 Nd5 Bbc4 Ne3 Be6+
2rnR3/1B1N4/N2QN2k/1Ppp3R/5rpK/1Qr2q1R/5nBB/bQB2n2 b - - 0 1 legal: proof: c4 c5 a4 f5 e4 b5 axb5 h5 exf5 Nc6 g4 Nd4 gxh5 Ba6 d3 Bc8 Kd2 Nc2 d4 Bb7 d5 Bc6 dxc6 Na3 Ke3 Nxc4+ Ke2 Na3 Kd2 Nc2 b6 Kf7 f6 a5 f4 d5 Ra3 e5 Ke2 a4 b4 e4 h4 Na1 c7 g5 Kf2 g4 Kg3 e3 h6 Kg6 f7 e2 b7 e1N b8Q Nd3 c8B Kh5 h7 Kg6 h5+ Kg7 f5 Qg5 h6+ Kf6 Rh5 Qg6 Nf3 Bg7 f8N Nf2 Ne5 Nd3 Ne6 Ra5 Kh4 Ra8 Nc3 Qf7 Na2 Nf2 Bg2 Ne7 Rh3 Rf8 h8B a3 h7 Nc2 Qb7 Nc6 Nd7+ Ke7 Qd3 Ne3 Qb1 Nf1 Qb6 Bb2 Bb7 Nd8 Be5 Rc8 h8R Bc3 b5 Bd4 Nb4 a2 Bef4 a1R Bh2 Ra3 Na6 Ba1 Qa5 Rc3 Qaa2 Qg6 Qab3 Kf7 f6 Qd3 Nd4 Kg6 f7 Qf5 Ne6 Qe4 Q1b2 Qf3 Q2a2 Rg8 f8Q Rg7 Qd6 Rf7 Re8 Rf4 Re5 Kh7 Qab1+ Kh6 Rh5#
k1B2qN1/1bp5/1Q1QPp2/qr4RR/1qpK4/2rR4/1bN4B/n2RN1QB b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 f4 b5 a4 e5 axb5 a4 fxe5 Nc6 c4 Na5 bxa5 dxc4 Kf2 Kd7 Ke3 g5 d4 a3 h4 g4 a6 g3 d5 a2 b6 g2 h6 Nf6 h7 Be7 a7 Ng8 h5 Bb7 d6 Kc8 h6 Qe8 e6 Qf8 d7+ Kd8 Na3 Bb4 Nf3 Be7 Ne1 Bc8 b7 Bd6 b8Q Bb4 Kd4 Nf6 e4 Nd5 e5 Ba5 Rh5 Qg8 Bf4 Qg4 Rg5 Qe2 Nac2 Nb4 Bh2 Qf3 Qb6 Rb8 a8B Bb7 Rb1 Re8 h8R f6 h7 Qb3 Qd2 Rg8 Rd1 g1Q+ Qe3 Qa4 Bh3 Qg2 Qg1 a1Q+ Kc5 Q1a3 Kd4 Qgf3 Bf5 Qh5 Bg4 Qe8 Rd3 Qf8 Qd6 Ba6 Bh1 Rb5 Bf5 Bb7 Qb6 Ke7 d8R Rg6 Bh3 Rh6 Bf5 Rh3 Rd6 Ke8 e7 Re3 Rd1 Rc3 Bc8 Qa2 Rhg8 Qa1 h8N Q4a3 Rd5 Qb1 Qd6 Bb6+ Rc5 Qa5 Ng6 Ba7 Qb6 Qb3 Rd5 Qb2 Rh8 Qb1 Na1 Nc2+ Ke4 Rh3 Qbd4 Bc6 Rhh5 Qbb4 Qc5 Ba8 Qd6 Bd4 Qb6 Bb2 Qd6 Nd4 Nac2 Nb3 Qdb6 Rc3 Qd6 Rb7 R5d3 Na1 Ke3 Rb5 Qb6 Rc5 Kd4 Bf3 Nh4 Bc6 Nf5 Rb5 Nh6 Bg2 Bb7 Kd7 Ng8 Qe8 Rgg3 Bc6 e6+ Kd6 Bc8 Qf8 Qb7 Bd5 e8Q Be4 Qg6 Bg2 Qa7 Kc6 Qg4 Bf3 Qf4 Be4 Rgg5 Bd5 Qa8+ Kb6 Qc6+ Ka7 Qc5+ Ka8 Qfd6 Bb7 Qcb6
kB1K3R/q6B/2P4n/4Qb2/2nQ3N/N2R2pb/QRb1B1pp/N2rb2R b - - 0 1 legal: proof: d4 b5 g4 e5 f4 a5 fxe5 f5 b4 c5 bxa5 g5 dxc5 Ra6 h4 Rg6 Kd2 fxg4 Ke1 g3 Bg2 g4 Bf1 Rg5 hxg5 Ba6 Qd5 Bb7 Qd1 Bc8 Kd2 d5 Kd3 Kd7 Kd4 Kc6 e4 Kb7 a4 h5 c4 b4 g6 h4 e6 b3 Ke5 b2 g7 h3 c6+ Ka8 e7 g2 e8Q h2 a6 d4 c5 g3 a7 d3 c7 d2 a5 Be7 Nf3 Kb7 a8N Rh6 a6+ Ka7 c6 Rh4 Nb6 Bb7 Ke6 Nf6 c8R Ba3 g8B Bb4 e5 Nd5 Be2 Be7 Bh7 Bf6 Nc4 Ka8 Ra3 Rh6 Rd3 Nb6 Na5 Nc4 Nb3 Rg6 Na3 b1B Na1 Bc2 Nh4 Qc7 Qf7 Rg4 Rh8 Rd4 Qg1 d1B Bf4 Rd7 Qd4 Bc8 Qe7 Qb6 Kf7 Qa7 Ke8 Rd6 e6 Nd7 Kd8 Bg5 Be5 Bd2 Qe8 Rd5 e7 Be1 Bb8 Bb1 Qg8 Bdc2 e8Q Rd6 Qee6 Rd5 Qgf7 Nf6+ Qd6 Bd7 Q6e5 Ng4 Qfe6 Rd6 Qf7 Nh6 Qfd5 Nd2 Qa2 Bh3+ Ke8 Re6+ Kd8 Bb3 Qdc5 Qb7 Rf3 Rd6+ Ke8 Nc4 Qf2 Rd2 Qfd4 Rd1 Kd8 Bbf5 Rd3 Qb6+ Bc7 Qc5 Bd6 Ka7 Bb8+ Kb6 a7 Bc2 Bd6 Ka6 a8R+ Kb6 Rb8+ Ka7 Rbb3 Ka8 Bb8 Qa7 Rb2
2bB3R/2rkp3/N5KN/1R1b1pp1/4r1q1/2PN1QQ1/NR2BB2/rn2r2Q b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 d5 e3 b5 axb5 d3 Kd2 Kd7 Ke1 d2+ Ke2 Ke8 f4 d4 Ra4 d3+ Kf2 Nc6 Ra1 g5 f5 Ne5 Ra5 Bg7 Ra1 Ng6 fxg6 Bd4 exd4 Qa5 Qe1 Qc7 Qd1 Qd8 Ke3 a5 Ke4 f6 h4 a4 b4 a3 h6 a2 g7 Bb7+ Kf5 Ra5 d5 Qc8+ Kg6 f5 d6 Qc5 d7+ Kd8 h7 Bd5 b6 Qb5 h5 Bc4 h6 Ra8 b7 Be6 b8N Qa6 b5 Nf6 g8N Ng4 b6 Qa7 b7 Qa3 Qf3 d1R Ne2 d2 Nf4 Nf2 Nd3 Bc4 Nc3 Qc5 Be2 Ra4 Na6 Ne4 Rh2 Re1 Rb1 a1R Na2 d1B c3 Bdb3 Be3 Qb4 Bf2 Bd5 Rg2 Nd2 Rh2 Qc4 b8Q+ Qc8 Qe5 Qc4 Qeg3 Qg4 Rb2 Nb1 Rh4 Qh3 Rb4 Qg4 Rb5 Rc4 Nf6 Re8 h8Q Re4 h7 Bb7 Ng8 B3d5 Nh6 Bc8 Qhe5 Rf8 h8R Re8 Qg1 Rf8 Qeh2 Re8 Qhh1 Rf8 N6b4 Kc7 d8B+ Kd7 Qgg3 Rf6+ Kh7 Rc6 Na6 Rc7 Kg6
KQ1Q1B2/4P1Q1/3B1r1B/N1N2b1n/2k2p1R/3r1ppn/1Rp3Rb/3B2qN b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 h4 c5 a6 g5 a7 f3 b6 f6 d6 g4 d7 g3 b7 Bg7 d5 Ne7 d6 Nec6 h6 Qa5 d8Q Na6 b8R Bf8 h5 Qe1 h7 Bh6 d7 Na5 Nh3 Bg7 h6 Bf8 Na3+ Kc3 Kd5 c4 e4 f5 e5 Bb4 e6 Rg8 h8B+ Rg7 e7 Nc6 h7 Qe3 Qd4+ Kb3 Ra2 c3 Nc4 Nc5 Nf2 Rg6 Rh4 Ne5 Nh1 Ncd3 Rg2 c2 Be2 Rg8 Bd1 Qe1 Bh6 f4 B8g7 Qg1 h8B Nf2 Bf8 Neg4 Kc6 Nh3 Qg7 Nf6 Na5+ Kc3 Rb6 Bc5 Rb2 Bd4 Kc7 Nh5 Kc6 Rb8 a8Q Rb3 Kc7 Kb4 Kb8 Kc5+ Qb7 Rd3 Ka8 Bf2 Qb8 Kd5 Qc3 Rg6 Be5 Rf6 Bd6 Ba7 Nb3 Bd4 Nc5 Be3 Qe5+ Kc4 Qg5 Bf2 Qg7 Bd4 Qe8 Be3 d8N Bf5 Nc6 Qe1 Qeg6 Bg1 Qge8 Bh2 Qed8 Qg1 Na5+
3k2nR/Q2B1q2/r1N2Rq1/pp2Q3/pRB2Pr1/Q2q1p2/1B1NN3/2bKQ3 b - - 0 1 illegal: Other
2bq3R/2p5/BpkNB3/2qpN2R/3q4/2pQRP1Q/2rB2rQ/KN1Q2n1 b - - 0 1 illegal: Other
6Bb/B1R5/1PQnRp2/rN1R1r2/1KprnQN1/2n2RpQ/1pB5/2N4k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 c4 d5 cxd5 Qd6 Na3 Qe7 Nb1 Qd8 Qb3 a5 Qc2 Qd7 Qd1 b4 b3 Qb5 axb5 a4 b6 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Ke7 Nh3 Kd7 Ng1 Ke8 e4 Kd7 d4 Kd6 Kd2 c5 h4 g5 a5 c4 e5+ Ke7 a6 f6 e6 Kd6 a7 g4 e7 b3 Kc3 a2 e8R f3 h6 g3 h7 f2 h5 b2 h6 Nc6 Na3 Rd8 a8B Na5 Bd3 f1N Nf3 Rb8 Re6+ Kd7 d6 Nb3 d5 Rb7 Nb5 Bg7 Nh2 Bf8 Bc2 Ra7 Bf4 Nd4 Qg4 Ne2+ Kb4 Nd2 Rhf1 Rc7 Rf3 Rc5 Bc6+ Kc8 d7+ Kd8 Bb8 Be7 Qf4 Nc3 Ba7 Bd6 Rae1 a1R Re7 Nb3 R1e6 Ra5 Rg7 Ne7 Bb7 Rg8 h8N Nf5 h7 Nd2 Ng6 Re8 h8Q Bf8 Qh3 Nd6 Ne5 N2e4 Nd3 Re7 Rf7 Bg7 Nc1 Bh8 Bb8 Nc8 Rd3 Na7 Re5 Nc8 Ba7 Nd2 Re1 Re4 Rh7 Bg7 Bc6 Ke7 d8R Kf7 d6 Kg6 d7 Rf5 Bd5 Bh8 Bg8 Rd4 Re6 Nde4 Rf8 Ra2 d8Q Ra3 Rd7 Ra5 Rd5 Ncd6 Qc8 Re5 Qff1 Kg5 Qc6 Rf5 Ra8 Nf2 Rc8 Nfe4 Qhg2 Kh4 Rc7 Nc8 Qd2 Ncd6 Qff4+ Kh3 Rf3 Nc8 Qe1 Kg2 Qed2+ Kh1 Qh6 Ne7 Qh3 Nc8 Qf4 Ncd6 Ng4+
2Rq2B1/K3n3/N1bb1n1r/1Q3kq1/2r2P2/1NQ1QNq1/RBb2R2/N4rBn b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 g4 a5 b4 h5 d4 c5 f4 c4 g5 c3 d6 e4 f6 Ke6 g6 a4 g7 c2 f7 a3 d5+ Kf6 Kd4 h3 Kc5 a2 b6 h4 b5 e3 b7 h2 b6 h3 Na3 e2 Qd2 e1R Bb2+ Kf5 Nf3 c1Q+ Bc4 Nf6 g8Q Be6 Qg3 Ra6 Rf1 h1B Qe3 h2 Rf2 Qc3 Nc2 Nc6 b8Q Bg2 b7 Bh6 f8R h1Q d7 Qh4 d6 Ra4 Kb5 Rb4+ Ka6 Ne7 Ka7 Rf1 Qg7 Bg8 Bd5 Bh7 Bg8 Rc4 Qg3 Qe8 d8B Qg5 Bb6 Qd8 d7 Bg6 Re8 Bf8 Bc5 Rh6 Bd4 Qc8 d8N Qc7 Nc6 Qd8 Na5 Bh1 Nfe1 Bc6 Nf3 Qe1 Nb3 Qc3 Re1 a1N Ree2 Qd3 Qd6 Qc3 b8N Bh7 Qb4 Qe1 Nc5 Nb3 Nba6 Nc1 Nb3 Nd3 Nca1 Bg6 Bc5 Bh7 Qb5 Bg6 Rh2 Nf2 Qc3 Nh1 Ref2 Qd5 Rc8 Qd8 Rfg2 Bh7 Qf2 Bg6 Qfe3 Qeg3 Rf2 Kg4 Re2 Bc2 Rhf2 Kf5 Bba3 Bd3 Ra2 Bc2 Bb2 Ng6 Rb8 Bd6 Rc8 Ne7 Qee5+ Kg6 Rd2 Qg2 Bg1 Qf2+ Qee3 Qfg3 Qb7 Kf5 Rf2 Bc7 Qbb4 Bd6 Qb5+
k2q4/Q3RBRr/5bQQ/5K1P/2b1NB2/n3NN2/Qq1bBn2/rrn1R2q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 g5 Ke4 a5 b4 c5 h4 Kc7 d4 Kb7 h6 c4 b6 a4 d6 a3 h7 g4 h5 f6 d7 c3 b5 a2 d5 f3 d6 f2 Bf4 c2 Nc3 c1B Kf5 g3 e4 g2 e5 Bh6 e6 Na6 e7 Ba3 e8B Bb4 Qg4 Bg7 Nf3 g1N Bf7 Ne2 Nd1 Bd2 Qg6 Nc7 Ne3 Nc1 Be2 f1Q Rg1 Qg2 Rb1 a1Q Re1 Kb8 b7 Qb2 Rg1 Ka7 b8N Qh1 b6+ Kb7 Rg3 Ra1 Na6 Nb5 Nc5+ Ka8 Ne4 Ba6 Rg2 Na3 b7+ Ka7 b8R Bc4 Rb7+ Ka8 Rg4 Nb3 Re1 Nc1 Rb5 Rb1 Re5 Ra1 Rg2 Rb1 Re7 Ra1 Kg4 f5+ Kg5 Nf6 Rg4 Rg8 h8Q Re8 Rg3 Ng4 Qhh6 Rh8 Rgg1 Nf2 Rg2 Qc8 d8Q Rh7 Qb6 Qd8 d7 Be5 Qb3 Bh8 Qa2 Bhc3 Bc7 f4 Kf5 Bf6 Rg5 Qdb8 d8Q Rb1 Nd4 f3 Qd7 Qd8 Bd6 Nd1 Bc7 f2 Bf4 f1R Nf3 Nf2 Qg8 Rg1 Rg7 Rh8 Qgh7 Ra1 Q7g6 Rh7 Qa4+ Ba5 Bd1 Ncd3 Be2 Rf1 Qd7 Bd2 Rc1 Rg1 Rc3 Rgb1 Rc1 Qc7 Qd4 Qd8 Re1 Nc1 Qa7#
nRRQ1RK1/3Qr3/br1rN2B/N6B/Q3kqN1/1B4n1/q2rP2r/R1bn4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 g4 h5 d4 c5 b4 f5+ Kf3 h4 g6 a4 g7 c4 g5 c3 b6 a3 b7 h3 g6 h2 b5 a2 b6 c2 Na3 Na6 b8Q+ Nc7 b7 Ra6 Qa8 Rb6 b8R Rh6 Nh3 Ba6 Bg2 Ne7 Rf1 h1R g8R Rh2 g7 Rh7 Qb7 Na8 Nf2 Qc7 Ng4 Qc4 Bd2 c1R Qa4 Rd1 Rh8 Qc7 g8B Bh6 Bf7 Qc1 Bh5 Rf7 Be3 Rd2 Rhf8 Qc4 Rfc1 Qb4 Rcc8 Rg7 Kf2 f3 Kg3 f2 Bg5 f1N+ Kf4 Ne3 Be4 Rb5 Bc2 Nd1 Bb3 Rb6 Qa7 Ng8 Qf7 Nf6 Qfe8 Re7 Qeb5 Bg7 Bh6 Ne4 Qe8 Ng3 Kg5 f4 Kg6 f3 Kh7 f2 Kg8 f1R Qeb5 Reb7 Qd3 Rf6 Nc4+ Ke7 d6+ Ke6 d7 Kd5 d8N Rfd6 Ne6 Re7 Qh7 Bf6 Qg7 Ke4 d5 Bb2 Na5 Bc1 Qf7 Rdc6 d6 Qd4 d7 Rd6 Rb1 a1Q d8Q Qa2 Qfe8 Qb4 Qed7 Qd4 Nc4 Qf6 Ra1 Qf4 Na5+
N1b4r/r7/1b1BqrNn/2n2rqk/3Q3N/1R2rPRK/B1QqBQ1Q/R7 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 a5 d4 h5 g5 e5 f6 Kg6 f7 c5 d6 h3 b6 h4 d5 e4 b5 e3 b7 c4 d7 e2 b6 h2 d6 a4 Nc3 a3 Qc2+ Kh5 g6 h3 g7 a2 Na4 c3 Nf3 Kg4 Ba3 Rh5 Rg1+ Kf4 Nh4 h1Q f3 h2 Kf2 e1R Rg3 Qg5 d8Q Ra6 d7 Nh6 g8B Re3 Be2 Qe1+ Kg2 Bc5 f8N h1R Qe7 Ra7 d8Q Na6 b8R Bd4 b7 Bb6 Qeh7 Nc5 Qcd2 c2 Q8d4+ Ne4 Qg6 c1Q Q2b2 Qcd2 Bd6+ Qe5 Qc2 Rf5 Qe6 Rf6 Qh3 Qec1 Qh2 Rf5 Kh3 Qg1 Rb1 a1R Ba2 Qge1 Ra8 Qec1 b8Q Raf7 Rb2 R7f6 Rb3 Qg1 Qdd3 Nc5 Qa7 Qgc1 Qd1 Qc4 Q1c2 Qe6 Qdc3 Ng4 Qc4+ Kg5 Nfg6 Kh5 Q4c3 Nh6 Qd4 Rc3 Qf2 Re3 Qg7 Qf4 Ra6 Qg5 Ra5 Bd8 Nb6 Bc7 Na8 Bb6 Bb1 Ra3 Qd7 Ra2 Qa4 Ra1 Qd4 Ra3 Ba2 Ra4 Rab5 Ra7 Ra5 Qd3 Ng2 Nd7 Bb1 Ng4 Ra1 Kh6 Ba2 Qd2 Nf8 Rg1 Qh1 Nc5 Ng6 Rb1 Rd3 Rb4 Qd5 Rba4 Qh2 Rh7 Nf8 Rh8 Qd4 Kh5 Rb3 Nh6 Nh4 Ra7 Nfg6
Bb3Nqk/2B5/N1R1qRP1/3QN3/K1n3qQ/1n1q4/1B2Bq2/bQ2rRrb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 d4 Kf7 Kd2 Kg7 Kc3 h5 Kb3 a5 g4 c5 e5 c4+ Ka4 c3 b4 h4 d6 h3 d7 h2 e6 f3 d5 f4 g6 f2 g5 c2 d6 f3 e7 Qb6 e8R Na6 d8B Nh6 d7 Be7 Bb2+ Qf6 b6 c1Q b7 Ng4 b8Q Rg8 b5 Bd6 b6 Ne3 b7 Kh8 Bc7 Nc4 d8Q Qf4 Na3 Qg4 Be2 f1Q Qd5 f2 Nb5 Bg3 Nd4 Qfe6 Rc1 Nc5+ Kb5 a4 Rf8 a3 Ngf3 a2 Ne5 a1B Rf6 Qfh3 Rhf1 h1Q Rc3 Nb3 g7+ Kh7 Rcc1 Q1g2 Kb4 Re8 g8B+ Kh8 g6 Qh7 Bf7 Qg8 Rc2 Re7 Be8 Q2e4 Bc6 Qd3 Kb5 Re8 Qe7 Ra6 Qb4 Rb6+ Ka4 Bd7 Qd8 Bc8 b8N Bb7 Na6 Ba8 Rg1 f1Q Rc1 Qg2 Rgf1 Qf2 Bb7 Rd6 Qe1 Rb6 Rc2 Rd6 Qb1 Rd7 Rc3 Rh7 Bc6 Rh1 Rcc1 Rg1 Rc3 Qd6 Ne6 Re7 Nf8 Qde6 Nf3 Bd6 Ne5 Re8 Bb6 Bb8 Bc7 Bb7 Rcc1 Bc8 Ba8 Bb7 Qd4 Bh1 Q8d5 Re7 Qf4 Re8 Qg5 Re7 Qh4+ Qh5 Nb4 Ne3 Ng4 Qc8 Rcc6 Nc4 Bd1 Re1 Na6 Qcf5 Ne5 Qfe6 Qg4 Qhh4 Be2 Qhh3 Qg5 Qhg4 Qh4+
1k2KB1Q/1NQ1N2b/1nRr4/5br1/Q3n3/1qRBbNNq/r1B3Pr/3Rq3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 a5 Kf5 c5 b4 h4 e4 h3 d4 f6 Kg6 Kc7 Kf7 f5 e5 a4 g6 a3 g7 c4 d6+ Kb7 b6 f3 b5 f2 d5 f4 e6 f3 e7 a2 e8B c3 d7 h2 d6 c2 Ne2 Ra4 Ba3 c1R Ng3 Ne7 g8N Rc6 Nd2 Na6 Bd3 f1R Rc1 a1Q Rc3 f2 Nf3 Kb8 b7 Qb6 d8N Bh6 d7 Nd5 Bf8 Be3 Ne7 Ra2 Qa4 Nc5 Bc2 Rc1 Rd1 f1B Bd3 h1Q Bc2 Kc7 b8R Rh2 Nb7 Bd3 Ra8 Ne4 Ra6 Qb1 d8Q+ Kb8 Qd7 Qa5 Rb6 Rd6 Rbc6 Qb3 b6 Rca1 Kg7 Qab4 Bg6 Q4a3 Kf7 Qe1 Ke8 Rc1 Na5 Rb1 b7 Nb6 Qg4 Be6 Qh3 Bg8 Qd7 Bh7 Bf5 Qe6 Bg6 Rb5 Bf5 Qab3 Bg6 Qh3 Bf5 Ka7 b8Q+ Ka6 Nb7+ Ra5 Qbd8 Ka7 Nc8+ Kb8 Qh4 Bc4 Ne7 Be6 Qf6 Rc5 Qh8 Ra5 Bg6 Rg5 Bf5 Nf2 Bfe4 Bef5 Bed3 Ne4 Qc7#
3B1KRr/1nQq1n2/1N2qq1B/6N1/NB1bQr2/1BQb4/P2RR1k1/1r3r1n b - - 0 1 illegal: No possible last move
2k2R2/Rq3QN1/1q4b1/r1b1r1n1/3NRr2/1nQP1bQn/BKN4B/B2b2B1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 c5 g4 a5 f6 h5 f7 e5 b6 e4 b7 c4 f5 c3 f6 e3 g5 e2 g6 h3 d6 h2 g7 c2 b5 a4 b6 a3 Bb2 c1N Qc2 a2 Na3 h4 Nf3 h3 Qc3 Rh6 Nc2 Rh4 Nfd4 Nc6 b8Q Nh6 g8N Nb4 b7 Nd5 d3 Rf4 Kd2 e1R Bg2 Re8 Re1 h1B Re4 h2 Bf3 Be7 f8R Qb6 f7 Ra5 Nf6+ Kd8 d7 Bc5 Bg4 Bf3 Be6 h1B Qe5 Bh5 b8B Bd1 Qg5 Bhf3 Qg3 Qb7 Ba7 Kc7 Bb6+ Kb8 d8B Bd7 Bbc7+ Kc8 Bb8 Re7 Ne8 Qb6 Ba7 Qb7 Bc7 Qb6 Rb1 a1Q Bd6 Qa2 Ra1 Qab3 Ra2 Qb7 Ba1 Q3b6 Ra4 Rf5 Bc7 Nf4 Ba2 Nh3 Bd6 Rf4 Bdb8 Bf5 Ra3 Ne2 Be5 Neg1 Kc1 Bg6 Beb8 Ng5 Bc7 Bb4 Kb2 Ree5 Ra4 Nf5 Bd6+ Q6c6 Bdb8 Bc5+ Bb6 Ra8 Ra7 N1h3 Nb3 Nh6 Qg4+ Ref5 Ra5 Bb4 Bg1 Bc5 Rg8 Qcb6 f8Q Ra6 Qg2 Rh4 Bbh2 Rhf4 Qf7 Re5 Qg3 Nf5 Rf8 Nd4 Ra4 Ra5 Ra3 Rb5 Ra7 Ra5 Qb4 Ne2 Nbd4 Nc1 Qbb3 Nh7 Qb4 Nb3 Qc3 N7g5 Ng7+
2nRB1kb/qBrr4/qn5N/4NRN1/QKR2n1q/PN3Q2/Q3r1r1/4Bb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kf7 f4 b5 d4 e5 Kd2 h5 g6+ Kg7 d6 c5 d5 b3 Kc3 b2 g5 e4 a3 c4 d7 e3 d6 e2 Nf3 e1R Kb4 h4 Bg2 h3 Qa4 c3 Nbd2 b1Q+ Nb3 c2 Rf1 h2 Ne5 h1Q Bb7 Qh4 Bd2 Re2 Be1 Qe7 d8R Rh7 f6+ Kh8 f7 c1R Ra2 Bg7 f8N Bh3 Ne6 Rc7 Rc2 Nd7 Rc4 Qd3 f5 Nb6 f6 Ra7 Rf3 Bf1 f7 Bf6 f8Q Rg7 Rf5 Rd7 Kc5 b4 Kb5 Rc7 d7 Qf7 Nbc5 b3 Kb4 b2 Nb3 Qe8 Qf7 Ne7 Qf8+ Rg8 g7+ Kh7 Qf7 b1N Qf8 Nc3 g6+ Kh6 Qf7 Nec8 Ng5 Qe3 Qd5 Qe6 Qf3 Qef2 Re8 Qfd4 d8Q Qg1 Qd2 Ncd5+ Kb5 Qd6 Qa2 Nf4 Rd8 Qd3 Kb4 Qgf2 Rc6 Qa6 Rc4 Rd7 Be4 Rac7 Bb7 Rh8 g8N+ Kg7 Nh6 Re8 Nhg4 Kg8 g7 Qg1 Nh3 Rg2 Nh6+ Kh7 g8B+ Kg7 Neg4 Ree2 Bf7 Kh7 Be8 Bh8 Ne5 Qgf2 Nhg4 Kg8 Ng5 Na8 Rc1 Qfa7 Rc4 Nab6 Nh6+
r1b3QK/2n3QR/Nn3Bq1/2kB1NQb/1b1NRP1B/2r1R3/n7/1b3Nqr b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 h5 Kg5 c5 Kg6 e5 b4 a5 g4 a4 f4 h3 d4 h4 g5 e4 f6 e3 f7 h2 b6 e2 b5 e1Q b7 a3 b6 h3 Qh5 a2 Bb2 c4 Bg2 c3 Nf3 c2 Nh4 c1N Nd2 Nc6 b8R Qd7 b7 Bg7 f8Q+ Kc7 d6+ Kb6 d5 Qde7 d7 Q7e5 d8N Na5 d6 Nc4 d7 Nf6 Ne6 Nd5 d8B+ Nc7 Bd5 Qd6 Be5 Rg8 Kh7 Qe3 Qff7 Bf8 g6 Kb5 Re1 h1B g7 h2 Nf5 Be4 Rh1 Be7 Nd4+ Kb6 Qh4 Re8 g8Q Qg6+ Kh8 Qf2 Rd1 h1B Qg3 Qe1 Qg7 Bhf3 Qg2 Qeg3 Rh1 Qf2 Rh7 Bh5 Qg4 Ba3 Qg1 Kc5 Bh4 Qfg3 Rb1 a1R Bef6 Na2 Re1 Bd3 Re2 Re3 Qg2 Rg1 Nf1 Rh1 Qg1 Qf2 Qg5 Qg1 Re1 Rg3 Re5 Bb1 Re4 Ra4 Ra8 Nb6 b8N Bb4 Ra6 Ra5 Ra8 Rb5 Ra3 Ra5 Rd3 Ra8 Rb3 Rc3 Ra3 Rc4 Rae3 Rc3 Na6+
2r1bR1N/q5nB/r2Nr1nq/n3Q1BN/kRP5/1b3K2/3b1QQ1/3BQ1rR b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 f4 e5 g4 h5 b4 d5 c3 Kd7 b6 Kc6 b7 Kb5 g6 d3+ Kf3 h4 g7 a4 g5 d4 f6 h3 f7 h2 g6 a3 f5 a2 f6 Qb6 Nd2 Qa7 Nh3 Bd7 Be2 Nc6 Qe1 Ka4 b8R Nge7 g8Q Na5 b5 Bh6 f8Q Be8 g7 Ng6 Ne4 d2 f7 d1N b6 d3 b7 d2 c4 Ne3 Nf4 d1B Rb1 a1R Nd6 Bb3 Bd1 Nf5 Nh5 Bd2 Rc8 Rh6 b8Q Ra3 Qc7 Ra2 Rd8 Rc8 Qc5 Ra1 Qe7 Ra3 f8N Ra2 Qcf2 e4+ Ke2 e3 Qe5 Ra1 Kf3 e2 Qgd5 Ra3 g8B Ng7 Bh7 Ra2 Qde4 Ra3 Qg4 Ra1 Qgg2 Ra3 Qef1 e1R Q1e2 Rg1 Qee1 Nf4 Rb2 Re6 Ng6 Ra2 Nh8 Ng6 Rb1 Rf1 Rg1 h1Q Rb2 Qh4 Rh1 Rg1 Rb1 Qg5 Rb2 Qh6 Rb1 Bd7 Rf8 Be8 Rb2 Bc3 Be3 Bd2 Bg5 Kb4 Bd8 Nb7 Ndf7 Raa6 Rh4 Ka4 Nd6 Bc2 Rh1 Na5 Rb5 Bb3 Bg5 Re7 Rb8 Re6 Rb4+
bk2n2B/qB1Nn3/1R4Rq/1KnrB2r/2P1b3/q2N1b1Q/6QQ/1NbRR3 b - - 0 1 illegal: No possible last move
Rb6/r3B3/4q2r/2B1Pq1Q/rqb1nQQN/1R1R3k/N1R4r/NBnn1K2 b - - 0 1 illegal: No possible last move
2n5/2b2KRk/RrP1N2r/NNBR1bbR/6Q1/1Bq2nB1/4b1q1/1Q2Q1nr b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 e5 Kc4 a5 Kd5 g5 f4 Kg7 h4 d6 b4 d3 c4 d2 h6+ Kh7 b6 g4 f6 g3 c5 e4 c6 a4 b5 e3 f5 a3 b7 a2 h5 g2 b6 e2 f7 e1B f6 Bf2 Ba3 Be1 Ne2 g1N Nbc3 Qc7 Nb5 Qd8 Nc1 Qe7 Qg4 d1B Nb3 Bb4 Na5 Bg7 f8Q Ra6 f7 Qe8 Qe7 Bf8 Bc4 Nd7 Ke6 d5 b8Q d4 b7 d3 Bb3 Bd2 Bc5 Rb6 Rh2 Bf4 Rg2 d2 Rg3 Bc7 Rd3 Bg7 Rd5 Qf8 Qeh4 Ne7 Qe1 Qe8 f8N+ Kg8 Qd4 Bf6 Qg4+ Bg5 h7+ Kg7 Qgh4 Be2 Qg4 Rg8 h8R d1R Rh6 Rh8 Rh7+ Kg8 h6 Ne5+ Rd7 Nef3 Rf7 Rc1 Rf5 Bd8 Rd5 Bc7 h7+ Kg7 Nc3 Kh6 Nb5 Qd8 Kf7 Rd1 Rc1 a1Q Ne6 Qc3 Ra1 Rc1 Qa8 Rb1 b8B Rd1 Qb7 Rb1 Rd4 Rc1 R7d5 Qd6 Rd2 Qh2 Rd7 Qg2 R2d5 Bd8 Bg3 Bc7 Rd8 Bd7 Rg8 Nc8 Rg7 Nh3 Qf2 Rh1 Qe1 Nhg1 Nd8 Bf5 Ne6 Re8 h8R+ Bh7 Nc4 Rd8 Ra6 Rd6 Rhg8 Bf5 Na5 Be7 Rg5 Kh7 R8g7+ Kh8 Nf8 Rdh6 Rh5 Bg5 Ne6 Be5 Qe7 Bc7 Qf6 Qc1 Qb2 Qc3 Rg6 Kh7 Qbb1 Bed3 Rg8 Be2 Rg7+
3N1R2/5r1n/Pr3NbK/qB6/B2R2rN/QqR1Q2b/B5k1/qQBr1nb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kh5 Kf4 a4 e5 g4 c5 a5 b5 g6 b3 g5 b4 f6 b2 d6 e4 d4+ e3 f3 Kg3 d5 c4 a6 b3 g7 c3 g6 e2 f7 e1R d7 c2 d6 Nh6 g8B Re6 f4 Ng4 g7 Ra7 f5 Nh2 f6 Qa5+ Bb5 Nf1 d8N Nd7 Nf3 Kg2 Nc3 b1Q Ra4 b2 Kg5 h5 Ne4 h4 Rd4 h3 Qd3 h2 Qe3 Be7 f8R Rh4 Kg6 Rg4+ Kh6 Rc7 Bh7 Qba2 g8B b1B Bg6 Qd5 f7 Nf6 d7 Nh7 Nf6 Bc5 Bgd3 Qb7 Ba4 Qb3 Bdb5 Rb6 Rg1+ Kh3 Rg2 h1Q Rgd2 Qg1 R2d3 Kg2 Rc3 Ra7 Ne6 Rc7 d8Q Bd7 Qb8 Bc8 Bb2 c1R Nd8 Rd1 Bc1 Bg6 Qb7 Bcf5 Qbe4 Be6 Qb1 Rcb7 Re8 Bc8 f8Q Rf7 Qfe7 Qf2 Rf8 Qfa2 Rdc4 Bd4 Qa3 Qa1 Rb4 Be5 Rd4 Bh2 Qf4 Bg1 Qe3 Rfb7 Bgc4 Rf7 Bd5 Rg5 Bdc4 Bh3 Be6 Rg4 Bd5 Qbb4 Ba2 Qb3 Nh4+
bB1R1rnR/3BN3/1N1qn1n1/Q7/Qn3Nn1/1Q1Bb3/Q2P1k2/rRKb1n2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 b4 Kf6 g4 h5 b6 e5 b5 c5 b7 a5 d6 c4 b6 h3 d7 h4 Qe2 h2 Kd1 c3 Ra2 h3 Na3 a4 Ra1 e4 Qc4 e3 Rb1 Nc6 b8R Bc5 b7 Nce7 Qa2 Ng6 Bb2 e2+ Kc1 e1N Ne2 Nc2 Nc4 a3 Nb6 Nb4 Ba1 Qe7 d8Q Be3 Qc7 Be6 Rd8 Bb3 b8Q Bd1 Qc5 Qd6 Qa5 Ra7 Qb7 Ra8 Qd7 Ra7 Qda4 Ra6 Q2b3 a2 Bb2 a1N g5+ Kg7 Ba3 Nac2 f6+ Kh7 f5 Nd4 f7 c2 f8Q Ne6 f6 Ra8 Rg1 h1N f7 h2 Nf4 Nf2 Rh1 Ng4 Bd3 Ra6 Qfe8 Ra7 f8N+ Kg7 Rf1 h1B Rg1 Bb7 Rh1 Ba8 Qa2 Ra6 Q4b3 Ra7 Qea4 Kf7 Kb2 c1N Rh5 Ne2 Rh3 Ng3 Kc1 N6e5 g6+ Kf6 g7 Kg5 N8g6 Nf1 Ne7 Ra6 Ned5 Ng6 Ne7+ N4e5 Bb2 Kg4 Rh4+ Kg3 Rh6 Nd7 Be5 Ndf6 Rh1 Ng4 Rh2 Qd5 Bb8 Qd6 Rh4 Kf2 Rh5 N8f6 g8B Ra7 Bf7 Rf8 Be8 Ng8 Bd7 Rc7+ Qac2 Rc3 Qba2 Ra3 Qa2b3 Ra2 Rh8 Ra1 Qca2
Q3N3/R2qb1B1/QQ4r1/3B2nb/3RNP2/b2b1BN1/r3n2Q/br1k1KRb b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 g5 e5 b6 a5 b5 a4 f6 a3 f7 a2 b7 h3 g6 h4 b6 c4 g7 c3 Bd3 e4 Be2 e3 Kf1 c2 Nc3 h2 Qd2 h3 Bb2 c1B Bf3 Nc6 b8N Nf6 g8B Rh6 b7 Rg6 Nge2 Be7 f8Q Qd7 Ng3 Ne4 Qh6 Ng5 Rg1 h1B Na6 h2 Nc7 Ra5 b8Q Ba6+ Qe2 Bd3 Qa8 Ra3 Qa6 Ra4 Qf8 Ra3 Qfa8 Ra5 Be4 Bf3 Be6 Bh5 Bf3 h1B Bf7 Be4 Qh2 e2+ Kf2 e1R Bg8 Re2+ Kf1 Rb5 Bf7 Bf8 Be6 Bd3 Nce4+ Ke7 Bc3 Ba3 Ne8 Rb8 Beg4 Kf7 d6 Be7 d5 Nd4 Bh3 Rb6 Bhg2 Rf2+ Ke1 Ne2 Bg7 Qf5 d7 Rb1+ Kd2 Qg4 d8R Qd7 d6 Ke6 Ke3 Qc6 d7 Kd5 Nc3+ Kc5 Nce4+ Kb4 Kd2 Kb3 Ke3 Qb5 Kd2 Nc1+ Ke1 Re2+ Kf1 Kc2 Rc8+ Qc6 d8Q Kd1 Qdb6 Qd7 Rc7 Rb3 Rb1 a1B Rb7 Rb2 Ra7 Ra2 Rb4 Rb2 Nc5 Rb3 Bd5 Rb1 Nce4 Rd2+ Ne2 Ra2 Bf3 Bc2 N2g3+ Ne2 Ra4 Bd3 Rd4
5Q1B/rQbKB1q1/2r1R3/1BQ2nR1/n3Nk2/2NB2Rb/4nbPn/5Nbn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 h5 d4 c5 g6 f6 g7 c4 b6 a4 b5 f3 b7 h4 b6 f2 Ra3 h3 Qc2 h2 Bb2 c3 Nd2 Na6 b8R Nb4 b7 Ne7 g8N Na6 e3 Bg4 Ne2 Qc7 Re8 Ra7 b8Q Rh6 Qb7 f5+ Kf4 Qd7 e4 Bh3 Nf6 Nc5 Qc1 c2 Nc3 Rg6 Bd3 f1N Ba1 Ng3 Nf1 Bg7 Rg8 Bf8 Rb3 Rh6 Rg5 a3 Rg1 h1N Qe3 c1B Bb2 Nc6 e5+ Ke7 e6 Kd6 e7 a2 e8B a1B Ra3 Qg7 Bd7 Ne7 B7b5 Na4 Rb3 Ng8 Ra3 Be7 Rb3 Bd8 Ra3 Bc7 Nfe4+ Ke7+ d6+ Ke6 Rb3 Ne7 d5+ Kf7 Ra3 Rf6 Ke5 f4 Qf2 f3 Qc5 f2 Rb3 Be3 Ra3 Bd8 d7 Ne2 d6 Bc7 d8B Nf5 Be7 Rg6+ Kd5 Re6 d7 Rc6 d8Q Bd4 Rh5 Kg6 Qf8 Be3 Rg5+ Kh6 Nfd2 f1N Rb3 Nh2 Re1 Bf2 Nf1 Bd6 Ke6 Bc7+ Kd7 Bg1 Rg6+ Kh5 Re6 Kg4 Rg6+ Kf4 Rg5 Neg3 Re3 Ne2 Reg3 Bf2 Rb4 Bg1 Rd4 Bf2 Rd6 Bg1 Re6 Bf2 Na2 Bg1 Bf6 Bad4 Nac3 Bdf2 Bd4 Qh7 Bh8 Qg6 Qc4 Qg7 Qc5
1N2B3/RbNb2n1/3QB3/rRB1R1nQ/2b2b2/kbKnN1QP/3n3q/3r3Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 d5 c4 g5 e4 a5 b6 f5 b5 g4 h6 a4 e6 Kd6 b7 Kc5 h3 Kb4 e7 f4 e8N a3 c5 f3 c6 d3 c7 g3 b6 a2 h7 g2 e5 d4 e6 f2 e7 Bd7 c8Q Na6 b8R Nc5 b7 Qc7 Ng7 Nh6 e8B Qh2 Nf5 Ra5 Qd8 Bd6 Na3 Bf4+ Ne3 Nf5 Nb5 Ng7 Ne2 g1N Nc7 Rf8 Bg2 f1B h8Q Rf5 Qhh4 Rd5 Qh5 Rd6 Qe1 Kb3 Ba3 Nf3+ Kc1 Ka4 Kb2 Ng5 Bd5 d2 Be6 d3 Nd4 d1B+ Kc3 d2 Nc6 Nd3 Bc5 Bb3 Qed1 Bg2 Re1 Rd5 Qc1 d1B Qe7 Bdc2 Qd6 Bc4 Re2 B2b3 Qh1 Ra8 Rb1 Ra7 Ra8 a1N b8Q Ra5 Ra7 Be4 Qd8 Rd4 Nb8 Bb7 Qf6 Nc2 Qfh6 Nce1 Q6g6 Nef3 Rbb2 Nd2 Rb1 Ba2 Rb4+ Ka3 Re1 Bab3 Re2 Ngf3 Qg3 Ng5 Ned5 Bd1 Re5 Bdb3 Ne3 Re4 Ng4 Re1 Ne3 Rd1 Rb5+
1Qr2B2/7r/1K3Nbk/R1QNr1rP/b5Q1/b1Bn1n2/1R4rq/B2Bb1RN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 e4 f5 b4 Kf7 d4 Kg7 h4 a5 b6 c5 d6 a4 d7 f3 Ke3 c4 e5 a3 b5 a2 d5 f4+ Kd4 c3 d6 c2 Kc5 f2 b7 g4 b6 g3 e6 f3 e7 g2 Ba3 c1R+ Nc3 Rc2 e8N+ Kh6 Nf6 Rh7 Ne2 g1R Ng3 Ne7 Be2 Nbc6 b8Q f1R b7 Qc7 d8Q f2 d7 Nf5+ Qe7 Nfd4 d8B Nf3 Bb4 Rb2 Ncd5 Bd7 Bc3 Re1 Qd6 f1B Be7 Rg2 Rg1 Nb4+ Qc6 Rb3 Nh1 Qh2 Kb6 Nd3+ Beb4 Rba3 Qc5 R3a5 Qa4 Be7 Bd1 Re5 Ba3 Bf8 Qg4 Ba4 Bab4 Nc1 Ba3 Bd3 Bab4 Bg6 Ba3 Kg7 Bab4 Nd3 h6+ Kf7 h5 Be7 Rb1 a1B Rb2 Bd6 Ra2 Bb2 Ra1 Ba3 Ra2 Rg5 Ba1 Bg3 Bac3 Rh8 h7 Be1 Ra1 Rc8 h8B R8a7 Ra2 Re5 Ba1 Rg5 Bbc3 Re5 Bg7 Rg5 Bf8 Re5 Be7 Kg7 Bd6 Kh6 Rb2 Ra8 Rb5 R5a7 Ra5 Rg8 Bf8+ Rg7 Qbd6 Rc8 b8R Rae7 Rb7 Rg5 Qb8 Ree5 Ka6 Bc6 Rb2 Ba4 Be7 Rf7 Kb6 Rh7 Bf8+
1Q3q2/K3brBP/b1Q1rR1B/5NrR/N2n2R1/k1b1NQNn/4br1n/7B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 Kd6 d4 f5 b4 a5 h4 g5 h6 c5 e5+ Kd7 h5 a4 e6+ Kd6 h7 a3 h6 g4 b6 f3 Ke3 a2 b7 g3 e7 f2 e8Q g2 b5 c4 b6 c3 Qc6+ Ke7 d6+ Ke6 d7+ Ke7 d5 c2 Kd4 f4 Kc5 f3 d6+ Ke6 Na3 Qe8 d8N+ Ke5 Ne6 Ra7 Ne2 g1N Ng7 Nh3 Bg2 f1B Nf5 f2 Neg3 Nf6 Qdf3 Rg8 h8B Be2 h7 f1R Bh6 c1R+ Nc2 Rce1 B8g7 Rf2 Nce3 Be7 Rh2 Qf7 Bh1 Qf8 Rd1 a1B Rd4 Bc3 Rg4 Ng1 Rh5 Nh3 Qa4 Nc6 b8R Rc7 b7 Nd4+ Kb6 Ke6 d7 Ke5 Nh4+ Kd6 d8N Rd7 Ne6 Rc7 Rf4 Ng4 Nc5 Nh2 Ka7 Rd7 Rg4 Rc7 Bf6 Rg5 Bfg7 Rd7 Qc2 Rc7 Na4 Rd7 Nb2 Kc5 Nhf5 Kb4 Na4 Ka3 Qce4 Rc7 Qc6 Rd7 Ra8 Rc7 Kb6 Rd7 b8Q Bca6 Ra7 Beb4 Rc7 Rf7 Ka7 Be7 Rd7 Rb1 Rd6 Rb6 Qc4 Rc6 Rf6 Re6 Qcc6
2qrN3/1B5r/2bkb1N1/5bb1/R1B2N1B/3r2Q1/RP1R1NQn/r2qQ1nK b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 g4 a5 f4 e5 Kf2 h5 Kg2 c5 g5 a4 f6 c4 d6 e4 f7 c3 f5 c2 d5 a3 b6 e3 g6 a2 g7 e2 f6 e1R b7 Be7 f8N+ Ke8 d7+ Kf7 d6 Re4 Na3 Rd4 Ne6 Rh7 Nb5 Rd3 Nh3 Nh6 Nf2 Nc6 b8Q Ng4 Nbc7 Nd4 Ne8 Nf3 Nf4 Ngh2 Qe1 Ng1 g8B+ Kf8 f7 Bg5 Bd2 c1Q Qb3 Qdc7 d8Q Bf5 d7 Qc8 Qd5 Qd1 Qc7 Rb8 d8R Be6 Qc3 Ke7 f8N Ra8 Be2 Rb8 Bf3 h3+ Kg3 Ra8 Be3 Rb8 Qa8 Bf5 Bc4 Be6 Bb7 Bf5 Rc1 a1R Rc2 Be6 Rd2 Bf5 Rd5 Be6 Ra5 Bf5 Nf6 Kd6 N8g6 Be6 Ra4 Bf5 N2g4 h4+ Kf2 Qe6 Bd4 Rd8 Ba7 Qc8 Qb3 Rd5 Qg3 Rd3 Ra2 Nhf3 Kf1 h2 Nf2 h3 Bd4 Ne2 Rg1 h1B Bc3 h2 Ne8+ Kd7 Rg2 Neg1 Bf6 Be6 Qh4 Bf5 Rg4 Be6 Qg3 Bf5 Ne4 Bg2+ Kf2 Bh3 Rh4 Bhg4 Kg2 Be6 Nf2 Bgf5 Ng7 Kd6 Rg4 Bh6 Bh4 Bg5 Kh1 Nd4 Kg2 h1B+ Kh2 Bc6 Ne8+ Kc5 Ne7 Ndf3+ Kh1 Bce4 Neg6 Nh2+ Qg2 Bc6 Qa3+ Kd4 Qc3+ Kc5 Qb3 R3d6 Qh3 Rd3 Qg3 Qc2 Nd5 Rh5 Bca6 Qd1 Rga4 Rh6 Ndf4 Rh7 Ng7 Kd6 Bc4 Kc7 Ne8+ Kd7 Nf6+ Kd6 Ne8+
1K4b1/BQ3R2/B1N1N2Q/3bN3/RbbB3r/1PnR3Q/2q2qrr/rk1R2n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 a5 Kc5 Ke5 g4 Ke4 f4 e5+ d6 h5 d4 a4 b3 h3 g5 c6 f6 a3 f7 h2 f5 a2 f6 h4 g6 h3 d5 Qc7 g7 Ne7 g8Q Ra5 d7 Rh4 d8R Be6 d6 Bc4 Qg3 Nd5 Ne2 Nc3 Na3 Ra7 Rg1 h1B b6 h2 b7 Ra8 Nd4 Nd7+ Kb4 Bg2 b8B h1B Bb2 Qc8 Ba7 c5+ Ka5 Qc6 Rc1 a1R Rc2 Bh3 Rd2 Bhe6 Rd3 Ra2 Ba1 Rah2 Qh3 Be7 f8R Bg8 f7 Bf3 Rd2 Ke3 Rfe8 e4 f8Q Ne5 d7 Qg6 Qc2 Qg3 Kb6 Qf2 Kc7 Rb8 Qc1 Rb4 Re2+ Kd3 Rg4 e3 Qg7 Bfd5 Rf8 Nf3 Nc6 Ng1 Rf7 Ra4 Kb8 Ra5 Nb1 Ra2 Nd2 Rg2 Nf3 Rc2 Re1+ e2 Qch6 Rd2 Re4 Kc2 Rd1 e1R Nfe5 Rde2 Rd3 Kb1 Red4 Ra2 Bb2 Ra1 Rd2 Re2 R4d3 Rh2 Rdf8 Rg2 d8N Bb5 Qf5 Na4 Rf6 Rgh2 Bc3 c4 Qh3 Qe1 Ne6 Reg2 Rd4 Qf2 Rff4 Ba3 Bb2 c3 Qb7 c2 R8f7 c1Q Bc4 Ba6 R4d3 Qc2 Bb5 Be7 Rb4 Bc5 Bd4 Nc3 Ra4 Bb4 Bc4 Bb5 Ra5 Ba4 Ba6 Bb5 Ra4 Bbc4 Rd1+
2RK4/2n4B/b2b2r1/B2Q4/3Rrq2/1QrQ1R2/BqNp1P1b/1NnnB1kN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 a5 b4 d5 c4 g5 b6 d3 h6 g4 f6 d4 h7 a4 b5 a3 b7 d2 b6 g3 f7 a2 h5 g2 h6 d3 Rh4+ Bg4 Ne2 Kf3 Ng3+ Kf4 Nh1 Nc6 b8Q+ e5+ Qd6 g1Q b7 Qb8 Kb6 Qh2 c5 Nd4 c6 Ne7 c7 Ne2 c8B Kf3 Qd5+ e4 Bf5 Rg8 h8B Ra3 h7 Qhf4 Bc3 Rg6+ Be6 Bh5 Ba5 Rc3 h8R Bg4 Q1b3 d1N Bd2 Nc1 Be1 Bh3 Be2+ Kg2 Bg4 Qbe5 b8N Kg1 Bf5 e3 Na6 e2 Nb4 Bf1 Nc2 Qf6 Rh3 Qg7 Rf3 Qgd4+ Qc5 Nd5+ Kc6 Qb4 Kd7 Nc7 Qcd5 Bd6 f8Q Qa3 Kd8 Qb2 Bd2 e1R Qg7 Rg2 Qg6 Re4 Be1 d2 Qg3 Ba6 Bh7 Rd4 Qg6 Rg3 Qd3 Rg6 Kd7 Re4 Rc8 Qa3 Kd8 Qb4 Nba3 Qb6 Rb1 a1B Rb2 Qb8 Nb1 Qb5 Ra2 Bb2 Ra4 Bba3 Qbc4 Qb2 Qb3 Be5 Rd4 Bad6 Qdb7 Qh6 Bc4 Bh2 Qd5 Qe3 Qa3 Qh6 Ba2 Qf4 Qab3
1B1R3Q/2KN2rR/Qn1r1bN1/7N/2Bn2PB/k2B2p1/1nq1Qq1r/3bR1b1 b - - 0 1 illegal: No proof kernel
2RbbBN1/1R1B3Q/1B1qqQ1n/n1rQ1rR1/1b4p1/3K1Bn1/3N1Pq1/1N2k3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 h4 Ke5 b4 Ke4 f6 e5 b6 d5 h6 g5 b7 a5 c5 d3 b5 a4 b6 a3 f7 d4 c6 a2 h5 g4 h7 Qd5 c7 Ra5 h6 Nc6 b8R Rc5 b7 Na5 Qa4 Bd7 c8B Be8 Bd7 Qe6 Ne2 Kf3 Qb5 e4 Rh5 Be7 f8B Bd8 Ng3 Rf5 Rc8 e3+ Kd1 d2 Kc2 d1N b8N e2 Be3 e1Q Ne4 Nc3 Rg5 Ne2 Kd3 Ng3 Be2+ Kg2 Qe5 Qh1 Bf3+ Kf1 Nc6 Ke1 Ned2 Qh3 Ne7 Qg2 Kc2 d3+ Kc3 Qh3 Qd5 Qh1 Bb6 Qg2 Ne4 d2 Kd3 d1Q+ Ned2 Qh2 Na3 Qg2 Rb1 a1B Rb2 Qc1 Nab1 Qc7 Rb5 Bc3 Rb3 Nf6 Rb5 Rg8 h8Q Bb4 h7 Qcd6 Qg7 Rh8 Qf7 Ng8 Qf6 Nh6 Ng8 Re5 Be3 Rf5 Rb7 Rf4 Bb6 Rf5 Ne7 Rg8 h8Q Rg7 Ng8 Rf7 Bb5 Rc7 Qh7 Rc5 Bd7
1Qb5/nR3RnK/q1N1R1Q1/3Bb2P/k5N1/1q3r1p/Q1Qn2Br/BN1b1q2 b - - 0 1 illegal: No proof kernel
n2qrB1k/3NNB1R/1b5Q/3b2rp/1Nq3R1/1QRPBN2/b2K4/2nnQ1r1 b - - 0 1 illegal: No possible last move, all moves rejected
b1Q1nKR1/1N1qB3/2Bn3Q/2b2pP1/2N3Q1/B1r1q3/r1kNBnb1/3R1Rq1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 h5 g4 c5 g6 f5 d6 a4 d5 c4 g7 a3 g5 f3 b6 c3 b7 f2 d7 h4 Ke6 c2 Kf7 Kb3 e5 a2 e6 h3 d6 h2 e7 Rh7 e8B Ra4 Nf3 Ra5 Be2 f1B Na3 Rh8 Nc4 Nf6 g8R Bg2 Rf1 Na6 b8Q+ Bb7 Qc8 h1N Nfd2+ Kb4 b3 Kc3 b4 Nf2 b5 Rh3 b6 Nc5 Ba3 Ba8 b7 c1Q b8Q Nce4 Qb6 Be7 Rb1 a1Q Qa4 Qc7 d8N Qd7 Nb7 Ra6 Qab4+ Kc2 Kg7 Qe1 Rd1 Qd4 Kf7 Rc3 Kg7 Qe3 Qbc6 Qe6 d7 Bc5 d8B Nd6 Kf8 Qd7 Be7 Ra5 Nb2 Ra6 Qg4 Ra4 Nbc4 Ra5 Bf7 Nfe8 Bd5 Ra6 Bb4 Ra2 Ba3 Nf7 Qh6 Nfd6 Rh1 Qg1 Bc6 Qh2 Rhe1 Qg1 Rf1
2R1r3/b5kB/1Rn1QBq1/Pp2n1Qr/1b1rq3/1R1q1BQN/K2N2b1/1N2Q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 Kd2 b5 Kc2 e5 Kb2 h5 a4 c5 f4 h4 g4 b3 d6 e4 d7 h3 f6 c4 a5 h2 g6+ Ke6 g7 Kf7 d5 e3 g5 e2 d6 e1B g6+ Ke6 f7 Kf6 f5 Ne7 g8B Rh7 g7 Bd2 Qe1 Nec6 Ra3 Ra7 Nh3 Bg5 Bg2 Qb6 d8N Ra6 d7 Be3 Nb7 Bb4 Bf3 Rh8 Bh7 Ne5 g8Q Nbc6 Nc5 Bb7 Qgg3 Re8 d8R Bf2 Bg5+ Kg7 Rc8 c3+ Ka1 b2+ Ka2 c2 Nb3 c1R N3d2 Rc5 Rb3 Ra7 Rf1 h1Q f6+ Kh8 Rg1 Rc4 Bh4 Rd4 Qg5 Qd8 Rf1 Qd5 f8Q+ Qg8 Qc5 Qg6 f7 Kg7 Qd5 Qg2 Rg1 Qf1 Rg4 Qd3 Qe6 Ba8 Rf4 Rad7 Re4 R4d5 Rc4 Ba7 Rb8 Rc5 Rb6 Rd4 Qgg3 Ng4 Bd8 Rh5 Rc5 Nge5 Be7 Nd8 Rc8 Ndc6 Bf6+ Kh6 Be4 Qc2 Nc3 Ne7 Bg5+ Kg7 Bh1 Bd5 Bh4 N7c6 Be7 Bc4 Bf3 Bf1 Bg5 Bg2 Bd8 Kh8 Be7 Qce4 f8Q+ Qg8 Qfh6 Qgg6 Qhg5 Kg7 Bd8 Bf8 Be7 b1Q+ Ka3 Qbd3 Ncb1 Bh1 Ka2 Bg2 Bd8 Bb4 Bf6+
r5Bq/R7/b2NB3/p1NrQ1Rn/KB1b3q/1N3PRq/BQQ1n1r1/6kb b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kf7 Kd2 Kg6 Kc3 Kf5 Kb4 e5+ d6 h5 g4+ Ke6 g6 Kd5 g7 c5+ Ka4 h4 b4 h3 d7 e3 f3 a6 g5 c4 g6 h2 b6 c3 b7 e2 b5 e1Q b6 c2 Ne2 e4 Bh3 e3 Na3 Rh6 Be6+ Kc6 d5+ Kc5 d6 Rh5 Rg1 h1B Rg3 Qf2 Nc4 Nf6 g8B Qg2 g7 Nc6 b8Q Nd4 b7 Rd5 Bd2 c1R Qc2 Rg1 Nc1 Ne2 Bb4+ Kd4 Qc7 Qf1 b8Q Nh5 Ra2 Qh4 d8R Rg2 d7 Bc5 Nd6 Bb7 Rf8 a5 d8N Qf6 Rf7 Ba6 N8b7 Qh6 Re7 Qh8 Bgf7 Ba7 g8B Bb6 Q2c6 Ba7 Nb3+ Kd3 Rc2 Bd4 Rc5 Qa1+ Ba3 Rf5 Nd2 Qc1 Ba2 Rh2 Rg7 Ng1 N6e4 Ke2 Bfe6 Qf1 Qb5+ Ke1 Qb2 e2 Bb4 Qh3 Nb3+ Kf1 Rd5 e1Q Qcc2 Qeh4 Rg3 Rg2 N7c5 Ne2 Ra7 Rg5 Qf4 Rf5 Nd6 Kg1 Qfe4 Rff8 Rdg5 Rf5 Qf4 Rd5 Qe5
3r1n2/kR3r1Q/B2Q3p/R2bbP2/5nNB/b2R1BK1/qQQrN2N/4n2q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 c5 d4 Kc7 f4 Kb6 Kf2 e5 f6 a5 f7 e4 d6 h3 f5 e3+ Kg3 h2 d7 c4 g5 h6 g6 c3 g7 e2 d5 e1R d6 a4 Bg5 c2 Bh4 c1Q Nf3 a3 Qc2 a2 Nc3 Re5 Ne2 Ka7 b6+ Kb7 b5 Qe7 d8R Rh7 d7 Nf6 g8B Qe8 Bg2 Bd6 f8Q Nd5 Qe7 Nf4 Bc4 Ba3 Re1 Qb2 Reb1 Qh5 Qf7 Qb3 Qg8 Rf7 Qh7 Re8 Bh1 Ra5 Rb2 Ka8 b7+ Ka7 Bd3 Qc4 Rb3 Ra6 Bg2 Rd6 b6+ Ka6 Rb5 Qd5 Rab1 a1B R1b4 Qa2 Rb2 Nc6 b8Q Ne5 b7 Neg6 R2b4 Rd4 Qd6+ Ka7 b8N Ba6 Ra5 Nf8 Bb5 Rd2 Nc6+ Kb6 Qb2 Bb7 Nce5+ Bc6 Ba6+ Ka7 Qc2 Bd5 Ng4 Bc3 Rb3 Be5 Rdb8 Rd8 Rd3 Bc4 Qb4 Bd5 Qbb2 h1N+ Kh2 Rc8 d8Q Nf2 Qd6 Re8 Kg3 Rd8 Rdb3 N2d3 Nfh2 Ne1 Bf3 Qg5 Rd3 Qe7 Qf6 Qc5 Qd6 Qg1+ Bg2 Qf1 Bf3 Qh1 Rb7+
2n1b1QR/1r6/3QP1nQ/2q1BNNR/qq1p2r1/Bk2N2b/Rr4B1/b1Q2K2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e4 Ke7 c4 Ke6 h4 a5 b4 g5 b6 d5 b5 f5 b7 a4 c5 f4 b6 f3 c6 f2+ Ke2 a3 h6 a2 h7 g4 h5 g3 h6 g2 c7 Qd6 Rh2 Bg7 Nh3 g1R Nd2 Ne7 Nc4 Bd7 c8Q Rg4 Ne3 Ra7 Ba3 Qc5 Qc1 Nbc6 b8B Rb7 Bg2 d3+ Kf1 d2 Qe8 Rf8 h8Q Na7 h7 Nc8 Qh5 d1B Qh6+ Ng6 Qg8+ Rf7 h8R B1a4 Bd6 Be8 Bb8 Bad7 Bc7 Rb8 b7 Bf6 Rb1 a1Q Rb2 Qb1 Ra2 Qbb4 Ng5+ Ke7 e6 Ba1 e5 d4 Rh5 Qa4 Ke2 f1Q+ Kd2 Qfb5 Ke1 Rg7 Kf2 Qbb4 Kf1 Ra8 b8Q Ra7 Qb6 Rb7 Bh3 Rg2 Qa6 Rb2 Bg2 Bc6 Qb6 Bf3 Qc6 Bg4 Qa6 Bh3 Bb8 Kd8 e7+ Kd7 Qf6 Rc7 e6+ Kd6 Qff8 Ke5 Nf3+ Ke4 Ng5+ Kd3 Qf4 Rb7 Qd6 Rc2 Bc7 Kc3 Bb8 Kb3 Bc7 Bd7 e8N Rb2 Bb8 Re7 Ng7 Be8 Ngf5 Rg7 Nf7 Nh4 Bc7 Rg4 Ng5 Ng6 Qd7 Rh4 Be5 Rg4 Qd6
n1r1Q1NQ/r2R1q2/1k1P3n/5B1p/Bq5R/B1b1b1qr/1RNQ2b1/R1K4N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 h5 g4 c5 f4 Kc7 b4 e5 f6 a5 f7 c4 d6+ Kb6 d5 a4 f5 h3 d7 a3 g5 h2 d6 e4 f6 a2 g6 Ba6 g7 Qe8 d8R Qe5 Ne2 Ra7 Rd7 Be7 f8Q Ra8 f7 Ra7 Bh3 Qg3 Qe8 Qg2 f8Q Nh6 g8B Bd8 Ba3 c3+ Kc1 e3 Qd2 c2 Bf5 Bb7 Ng3 e2 Bb3 Na6 Ba4 Bg5 Qf6 Rf8 Qh8 e1B Rg1 Nc7 Nh1 Qd5 Rg4 Qf7 Rf4 Bg2 Rh4 Kb7 b6 Be3 b5 Rg8 Bc5 Rg3 Na3 Rh3 Kb2 c1R Nc2 Bg3 Ba3 Be5+ Nd4 Rc3 Nc2 Rc5+ Kc1 Bc3 Rd8 Na8 Rd7+ Rc7 Rd8 Rc8 Rd7+ Kb8 b7 Ra5 Be4 Ka7 b8N+ Kb6 Bf5 Ra6 Nc6 Ra7 Rb1 a1Q Ne7 Qaa2 Ra1 Qab3 Ng8 Qbc4 Re4 Qb4 Rh4 Ka5 b6 Ka6 b7 Kb6 Ng3 h1Q+ Ne1 Ka6 b8R Qh2 Nh1 Qg3 Nc2 Ka5 Rb5+ Ka6 Rd5 Kb6 Rd3 Be5 Rb3 Bc3 Rb2
1q1Rb1BB/N2nK3/1bP4k/1R1qN1RN/q1p2r2/r3n1B1/4nQ1b/N4QQ1 b - - 0 1 illegal: No proof kernel
B1N2Q1n/KRQn4/P3NR2/N1nb1bbR/r4N2/2B1rBrQ/qp5k/1q6 b - - 0 1 illegal: No possible last move, all moves rejected
r1B2b2/2nq3R/P2n1B1b/QqR1K1QN/B2Q1Np1/1RN2Q2/k3b1r1/n4q2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 h4 f5 e4 b5 a4 c5 d4 g4 Kf4 c4 e6+ Kd6 e7 b3 e8B b4 e5+ Kc7 e6 Kb6 d6 Ka5 d7 b2 e7 c3 d5 c2 h6 b3 h5 Kb4 a5 Nc6 d6 Ne5 h7 Ra7 h6 Nf3 Rh3 Nh4 Ke5 f4 Ba6 f3 Ne2 f2 Bg5 f1Q Nbc3 c1B Nf4 b1Q Qf3 b2 Bf6 Kb3 Ra2 Qc7 d8Q Nf5 Beb5 Qc6 e8N Ra8 d7 Nd6 Ng7 Ne7 Ngh5 Nd5 Ra4 Bd2 Rc4 Nc7 Rc5 Qbd1 Bb7 b1N Ba4+ Kb2 Qe7 Qcb5 d8Q Na3 a6 Nc2 Rg3 Bf5 Bc8 Na1 Qg7 Bb1 Qg5 Bd3 Rh3 Be2 Rg3 Rg8 h8Q Be3 Qhg7 Rh8 h7 Qdd3 Qgd7 Bd2 Qdf5 Qd7 Q5e4 Q3b5 Qd4 Be3 Nd1+ Ka2 Rh3 Rg8 h8R Rg6 Rh7 Rh6 Ng3 Rh4 Ngh5 Bd2 Rg3 Rh2 Rh3 Rg2 Rg3 Nd5 Qa5 Nc7 Nc3+ Kb2 Qf5 Bg7 Nd1+ Ka2 Qc6 Qf7 Nh3 Qh1 Rb3 Qf1 Qcf3 Bdh6 N3f4 Qfd7 Qg5 Bf8 Nc3#
7r/rRb3P1/2NN1KbN/3Q4/B4b2/1npqk1BR/1B1q1Rn1/N1rq1QQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 h5 g4 c5 b4 a5 f4+ Kh6 d4 c4 d6 h3 d5 a4 b6 h4 f6 h2 g5+ Kg6 b5 c3 d7 e6 b7 h3 f5+ Kh7 d6 a3 b6 a2 f7 Ra3 g6+ Kg7 Nd2 Kh6 g7 Kg5 f6 Ne7 Ne2 Nf5 Nc4+ Ne3 Nd4 Ra7 Nb3 Na6 b8B Nc5 Rb1 a1Q b7 Qb2 Na1 Qd2 Rb4 Be7 f8Q Nb3 f7 Ng2 Qe1 Kg4 Bb2 Kf3 Bc7 Bh4 b8N Bg5 Nc6 Ba6 Rb7 Be3 Na3 Bd3 Nb5 Bg6 Qb1 Bh6 Bb8 Ke3 Be2 Nd4 Bd1 Bg5 Ba4 Bh6 Rf1 h1Q Rf4 h2 Rh4 Nb3 Qe1+ Kd3 Rh3+ Be3 Qf2 Qg1 Bc7 h1R Bb8 Qge1 Bc7 Rf1 Qg1 Qee2 Bb8 Qg4 Bc7 Rc1 Bb8 Qgd1 Bc7 Qh4 d8Q Qc4 d7 Ke2 Qg5 Qcd3 d8N Bb6 Qf5 Be3 Qg8 Bb6 f8R Be3 Kf6 e5 Ke6 e4 Bg3 Bg5 Nf7 e3 Qf4 Bd8 Nbd6 Bc7 Qe5 Kf3 Qg5 e2 Qf5+ Qf4 Qf6 e1B Nh6 Bd2 Ke7 Ke2 Qd5 Qf2 Ke6 Qfe1 Rf7 Be3 Qff1+ Kd2 Rf3 Bf4+ Kf6 Qee2 Rf2 Ke3 Nb4 Qed2 Nc6
1r4q1/2r2p1N/QRN2KN1/2k2B1r/B1QnQ3/1q1R2bb/nPb2n1B/3N1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 d4 g5 h4 c5 b6 f3 h6 g4 h5 f2 h7 g3 h6 g2 b7 c4 Bf4+ Ke7 Ke5 c3 e4 c2 d6+ Kd7 d5 c1N Rh3 a4 Bd3 f1B Qe1 a3 Nf3 g1Q Ng5 a2 Bh2 Bg2 Nc3 Qf2 Nd1 Na6 b8R Qf3 Rb6 Ke8 d7+ Ke7 Rg3 Qe8 d8N Be6 d6+ Kd7 Nc6 Ne2 Qh1 Kc8 d7+ Kc7 Bc2 Qa3 Rd3 Bb3+ Kf5+ Bd6 e5 Nf6 e6 Qb4 e7 Qg8 e8B Ng4 Qf1 Nf2 Kf6 Bh3 Qh1 Qd2 Qe4 Nd4 Rb1 Bf4 Rc1 Kd6 d8Q+ Kc5 Qde7+ Bd6 Q7e6 a1R Bd7 Rb8 Bc8 Bc4 Ba4 Qb4 Rb1 Bb3 Rc1+ Bc2 Bd7 Qc8 Rb1 Re8 h8Q Re7 h7 Bg3 Qe8 Qb5 h8N Nb4 Nh7 Na2 Ng6 Qb3 Qe2 Qd8 Q6e4 Qc8 Bf5 Rc7 Q8e6 Qe8 Nc3 Qf8 Rf1 Re1 Nd1 Qg8 Q2g4 Re3 Qc8 Re1 Qa6 Re2 Qe6 Re5 Qe4 Rd5 Bg4 Rg5 Bf5 Rh5 Qec4+
bb1bkqqR/QP2R2Q/4RBrr/3rq3/2K2B2/2nB2NQ/6np/N1N2B2 b - - 0 1 illegal: No possible last move, all moves rejected
rrQBNQnR/bNK3b1/3n2b1/3r1R2/1kpQ4/1P4QN/bqB1B3/4R1b1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 f4 a5 g4 c6 g5 h3 g6 h2 g7 h4 b6 h3 b3 e6 b7 a4 f6 a3 f7 a2 f5 Bd7 f6 Qe8 Be2 Na6 b8Q+ Nc7 Nc3 e5+ Ke4 Kc5 d6 Bc8 d7 Nb5 d8Q Kb4 d4 c5 Kd5 e4 Bg5 c4 Qg3 e3 Ne4 Qe5+ Kc6 Nd6 d5 Bf5 Qd4 Bg6 Re1 a1B Qc8 Be7 f8R Bc3 Bd1 e2 f7 Bd8 Be7 Bb6 Bd8 Ba7 Nf6 Bb1 Kd7 Ba2 Kc7 Ba1 Ne8 Bb2 Rf1 e1B Be2 Bf2 Re1 Ba1 Qe4 Qb2 Qd4 Ne7 g8B Be3 Bh7 Ng8 Nf3 Rb8 Rhf1 h1R Ng5 h2 Rf5 Rf1 Bg6 h1B Nh3 Be4 Bh7 Bg1 Bg6 Nb7 d6 Rh5 d7 Nd6 Re5 Beb1 Bc2 Rh8 Rh5 Rf5 Rg5 Rd5 Rf5 Rdb5 Be7 Ra8 d8N Rbb8 Nb7 Rh5 Bd8 Rg5 Rf2 Rd5 Rf5 Nh6 Rh8 Ng8 Bcd1 Bc2 f8Q Be4 Rf2 Bg6 Bc2 Qb1 Qdf4 Bg7 Qd4 Qb2 Rf5
rNknN1b1/2N3K1/4Pn1B/4Q3/4QQB1/p1b1bb1B/1br2rRQ/5RRq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Ke3 c5 Kf4 a5 Kf5 g5 d4 f6 Kg6 g3 b4 c4 h4 g4 e4 g2 h5 a4 h6 a3 e6+ Kc7 b6+ Kb7 h7 c3 e5 f5 e7 g3 e8B c2 d6 f4 d5 f3 e6 f2 b5 Na6 d7 Qc7 d8Q Bd7 d6 Rc8 Nf3 g1R Qh4 g2 Bh6 c1B Qdd4 Bf4 Nc3 Be5 Qh2 Bg3 Qe4+ Qc6 Nd2 Rc7 Nc4 Nb8 Nd5 Kc8 Ra2 Be7 Kg7 Nf6 Bh5 Be8 Bg4 Be5 Rc2 Rf8 h8Q Bb2 Rd2 Ra7 Nc7 Ra8 Qhf4 Bf7 b7+ Kd8 b6 Bg8 d7 Bb4 Nd6 B4c3 Rd1 Qd5 Re1 Nc6 b8N Qh5 b7 Qh4 Ba6 f1B Nde8 Be2 Rf1 Bf3 Be2 Qe1 Bh3 Qh4 Rh2 Rh1 Qhh7 g1B Rg2 Be3 Qhf5 Qh5 Q5e5 Rh2 Rgg1 Rf2 Bd1 Rc2 Qh2 Ke7 d8R Qh4 Rd2 Nd8 Rdg2 Qh5 Qhf4 Qh4 Bg4 Qh1 Bh3 Ng4 Qh2 Be2 Qh7 Rf2 Qf5 Nf6 Nba6 Nc6 Qef4 Kd8 Q5e4 Bd3 Bdg4 Be2 Nb5 Bf3 b8Q+ Ke7 Qbe5 Kd8 Nb8 Kc8 Nbc7 Nd8 Qa4 Ba7 Qac4 Be3 Qce4
R2q1BN1/1Q2b1b1/K2PB1rn/R1B5/1b1Q2p1/2Qn1bNN/1B2k2b/r1Rn4 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 h4+ Kf4 b4 a5 d4+ Ke4 f4 c5 f6 g5 b6 e5 Kb5 g3 f7 g2 f5 g4 f6 a4 d6 a3 b7 c4 h5 a2 d5 c3 d7 c2 h6 Qe7 d8R Nc6 b8N Bd7 h7 Ra7 Bc4 Be8 Nd7 Nh6 Ra8 Na5 Nh3 g1B Nd2+ Ke3 Bb2 c1N Ne4 Nd3 Ng3 Rg8 h8Q e4 Bb3 Bg7 f8B Bh2 f7 Nc4 Rf1 Qf6 Bc5+ Qd4 Rc1 a1B f8B Bf6 Qg7 Be7 Rf5 Ra2 Qf6 Rg6 Qc6 Ra7 Nf6 Bd7 Ng8 Bc8 Rf1 Bb7 Rf5 Ra3 Qg1+ Kd2 Qc7 e3 d6 e2 Qa5 Bf3 Ka6 Ne3 Be6 e1B b5+ Qb4 b6 Nd1 b7 Qc3 Nf1+ Ke2 b8Q Qf6 Qb7 Bb4 Qd4 Ra4 Ba3 Bac3 Bb2 Ra1 Rd5 Qf7 Qa3 Qe8 Rh5 Qd8 Ng3+ Ke1 Bb6 Kd2 Ra5 Ke1 Bc5 Kd2 Qg1 Bg7 Qd4 Ke1 Nf5 Kf1 Qac3 Ke2 Ng3+
1b3rb1/5NnP/RbBN1nkq/1Q1b1b2/R3N1R1/KQ1r1p2/Qr6/Q1BB4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 g5 h4 a5 e4 d5 b4 f5 c4 Kf7 Kc2 a4 Kb2 g4 b6 f4 c5 f3 h6 g3 c6 d3 h5 g2 h7 d2 e6+ Kg7 b5 d4 h6+ Kf6 e7 d3 e8Q Qd7 e5+ Kg5 e6 Bb4 c7 Bd6 b7 Be7 b6 Nf6 Qc2 Nh5 Be2 Bd6 e7 Qh3 Nc3 Rf8 h8Q Ng7 h7 Bf5 c8N Nd7 b8Q Qh6 b7 Nf6 Qb5 Kg6 Nh3 g1B Bd1 Bb6 Ne4 a3+ Kb3 a2 Nhg5 Bdc7 Nf7 Ra3+ Kb4 Bf4 e8B Rb3+ Ka4 Rb2 Rh4 Bfc7 Qa7 Bd6 Bc6 Bb8 Be2 d1B Qcb3 d2 Ka3 Bc2 Ncd6 d1B Qaa6 Bd3 Qaa5 B1c2 Bd1 Bc4 Qaa6 Bd5 Qa8 B8c7 b8R Bfe6 Rb7 Bb8 Ra7 Bf5 Ra6 Bd3 Qg8 B3c4 Rb1 a1R+ Qa2 Rh2 Rb4 Rb2 Rba4 Rab1 Rf4 Rd2 Qab3 Rbb2 Rg4+ Kh5 Nfg5 Rd3 Qe6 Kg6 Qe5 Rf2 Qa1 Rb2 Qa7 B6c7 Qf2 Bb6 Qc2 Bg8 Qcb1 Bce6 Qba2 Bd5 Ngf7+
1b1rRBQ1/1r2rP1K/B7/1N3r1N/2k1r1Q1/q2R1N1B/1p1n2R1/Nbn2Q1b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 b5 Kg6 e5 f4 e4 d4+ Kb6 a4 c5 h4 e3 h6 e2 d6 e1R a5+ Ka6 h7 c4 f6 c3 d7 c2 d5 b3 d6 b2 h5 Re3 h6 Re2 f5 b4 f7 Kb5 f6 b3 a6 Qc7 d8R Nd7 a7 Kb4 Nd2 b1B Rh3 b2 Nb3 Be7 f8Q Qc4 Nf3 Bb7 Re8 Rb8 a8B Nc5 d7 Re4 d8Q Qc3 Ba6 Nd3 Qd7 Qc5 Qg4 Bd6 Qf1 Rd8 Ra5 Bb8 Na1 Rd7 Ra3 Re7 Rh2 Qa5 Rc3 Qa3 Rg2 Bd5 Be3 Nc1 Rd3 Bc6 B8b7 Bd5 Bc8 Bc6 f7 Nf6 Nd4 Bb7 Nb5 Kc4 Qg8 Ba8 Kf5 g5 Kg6 Bc6 Bc5 Ba8 Qd7 g4 Kg7 g3 Qg4 Rb7 Bf8 Re7 Qgd1 Rb7 Bh3 Ree7 Qg4+ Ne4 Qd7 Nd2 Qg4+ Re4 Red8 Rd4 Re2 g2 Be7 Nf3 Qf8 Rc7 Qe8 Rf8 h8N Na2 h7 c1R Ng6 Re1 h8N Nd2 Nh4 Nc1 Kh7 Bc6 N8g6 Rb7 Nf4 g1R Nh5 Rg2 Qg6 Rf2 Qg4 Bh1 Bb4 Rf6 Nf3 Rf5 Rg2 Ree4 Bc5 Rdd7 Be7 Rg8 Qf8 Rdc7 Qfg7 Re8 Qg8 Rc8 Bf8 Ree7 Re8 Rd8 Re2 Red4 Rh2 Rde4 Rg2
N3bnQ1/1Qq1p1R1/1Q1n3r/1R4N1/Q2n2K1/2k1P1bB/B4r1N/n3bBnR b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 h4 Kc5 d4+ Kb4 e3 c5 d6 f5 b6 a5 h5 a4 d5 g4 b7 a3 d7 a2 d6 c4 h6 c3 h7 c2 Nh3 c1N Nd2 Nc6 b8Q+ Kc3 b4 Nf6 g8B Nb3 b5 Bh6 g7 Ncd4 b6 Qc7 d8Q Nd7 b7 Nf8 Ng5 Bd7 Be6 Be8 g8B f4+ Kh4 f3 d7 f2 Ndf3 g3 Kg4 g2 Nh2 g1N Qdc8 Nge2 d8N Ng1 Qa7 Bg7 b8R Be5 Rb5 Bg3 Qb6 Ra7 Rb1 a1B Qcb7 Ra2 Bd7 Bb2 Nde6 Na1 Qa4 Bc1 R1b4 Bd2 Rb2 Be1 Re2 Qc6 Nc7 Rc2 Na8 Qc7 Ba2 Rb2 Bh3 f1N Rg2 Nd2 Bf5 Nc4 Bd3 Rf2 Bf1 Rg8 h8Q Rg6 Qg8 Rh6 Qd1 Nd6 Qa4 Rc2 Rf2 Rd2 Rf7 Rf2 Rg7
1QB2R2/QpNrBNrb/3P1r1n/bn5Q/K5n1/B2NnR2/1qk1n1R1/7R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 d4 e5 Kd2 c5 Kc2 g5 Kb3 g4 a4 e4 a5 c4+ Ka4 e3 a6 e2 a7 e1R h6 b3 h7 g3 h5 g2 h6 c3 d6 c2 d7 b2 d5 Qb6 d8B+ Re7 Qh5 Nd7 Na3 b1N Ra2 Nd2 Nb5 Ne5 Ba3 c1N Nf3 g1N Bh3 Ng4 Ne1 Nc4 Rg2 Nf3 Nd3 Nce3 Nc7 Qb2 d6 Ne2 Ne6 Rb8 a8Q Nfd4 Nc7 Bg7 Qa7 Nb5 Qh4+ Kf7 f6 Kg6 f7 Kf5 f8R+ Ke4 f5 Rd7 Be7 Bc3 f6 Ba5 f7 Ra8 Qh5 Rb8 Nc5+ Kd4 Nd3+ Kc3 Re8 Kc2 f8R Ra8 Rf3 Rb8 Ref8 Ra8 Bf6 Rg7 Be7 Bf5 Qe8 Rd8 Qh5 Nh2 Bg4 Be4 Bf5 Nhg4 Bc8 Rd7 Rff1 N8f6 Rf3 Rhg8 h8N Bh7 Nf7 Rh8 Rd8 Rf8 Re8 Ng8 Rd8 Bf5 h7 N8h6 h8Q Bh7 Re8 Rfg8 Rf8 Rg6 Qhd4 Rf6 Qb8 Rg7 Qda7
B1r1R1rR/3n2QK/3bR1Pn/b4Q1R/1N3qN1/3N1n1p/1Bk5/rb2bQ1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d6 c5 d5 h5 b6 h4 d7 f6 Kf5 c4 Kg6 c3 e4 f5 e5 c2 d6 Kb3 e6 a4 e7 f3 e8N f2 b7 a3 Ne2 f4 Nf6 f3 Nbc3 a2 Ncd5 Bh6 Nef4 Ra4 Nd3 Qe7 d8R Bg7 d7 Ra7 Bg2 f1R Re8 f2 d8Q Be6 Qd7 Qf8 N5b4 Rg1 Qf1 Nc6 b8R Bd5 Qf5 Be4 Rb6 Nb8 Rbe6 Ra5 Rh2 Qd6 Bh1 Nh6 Rb1 Rg8 Kh7 a1B g6 Bf8 g5 Qf4 g7 Rc5 g6 Rc8 Ng4 Nd7 Rh3 Bd6 Rh2 Kc4 b3+ Kc3 Bb2+ Kd2 Re1 c1B Re3 Bf3 R3e5 Bd1 Ba8 Bc2 Rb5 Bb1 Rh3 Rf8 g8B Rh1 Nc6 Rg1 b4 Kc2 Rd5 Rh1 b5 Bd2 b6 Be1 b7 Ba5 Bf7 Rg8 b8Q Be1 Qb7 Ba5 Bc1 B1c3 Bb2 Bd2 Qa7 Be1 Qd4 Rg1 Qg7 Rh1 Qg1 f1N Ncb4+ Kd1 Rc5 Nh2 Qf1 Rg1 Ree3 Nf3 Bfd5 Nd4 Bh1 Nf3 R3e6 Kd2 Rh2+ Kd1 Rhe2 h3 R2e5 Kd2 Rb5 Kd1 Rb8 Kd2 Qff8 Kd1 Rh5 Kd2 Qf5 Kd1 Na6 Kc2 Nab4+ Kd2 Nc5 Bh4 Na4 Rd8 Re1 Ba2 R8e7 Rgf8 Qg2+ Bf2 R1e5 Ra1 R5e6 Bb1 Qf1 Be1 Nc5 Kd1 Ncd3 Rfe8 Rf7 Kd2 Rf8 Kd1 Rh8 Rg8 Rc8 Rdf8 Rce8 Kd2 R8e7 Rc8 Re8 Kd1 Nd5 Kc2 N5b4+
n1k4B/bn2r3/3BbP2/3R2Qr/rBKpn1N1/1B1Q4/Nr2Q3/1q1R1NbR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 f4 g5 b4 e5 c4 g4 c5 g3 c6+ Kc7 f6 g2 f5 a4 f7 a3 f6 a2 b6+ Kd6 h6 Rh7 h5 Bh3 b5 Ra4 c7 Kd7 c8Q+ Kd6 b7 Bd7 b6 Rb4 Nd2 Na6 b8R Nc7 b7 Rb2 Nh3 g1B Qe2 Na8 Qc3 Ne7 Nf2 Nc6 Ng4 Qb6 Rd8 Kc7 b8N Bc5 f8B Na5 Nc6 Nb7 Nb4 Be6 Rd6 Rh8 h7 Kc8 h6 Qb5+ Qc4 Qb6 Rb1 a1R Na2 Qb4 Qa6 Ba7 Bg2 Qb6 Nf1 Qb4 Bd2 Qb6 Nb4 Ra4 Na2 Qb4 Rd1 Qb6 Qe3 Qb4 Qg5 e4+ Ke2 e3 Kd3 Qb6 Bb4 e2 Rd7 e1R Bfd6 Re5 Bh3 Re8 h8Q Rf5 Qhg7 Re7 h7 Re5 h8B Rf5 Qe3 Rh5 Bbc5 Qb4 Qe2 Qb6 Qc4 Qb4 Qg5 Qb6 Qcc2 Qb5+ Kd2 d3 Kc3 d2 Bb4 Qb6 Qb1 d4+ Kd3 Qc6 Bg2 Qb6 Bd5 Qb5+ Ke4 Qb6 Qbd3 Qb5 Bb3 Qb6 Rb1 d1N Ke5 Nf2 Rd1 Bf5+ Kd5 Ne4 Bdc5 Qb5 Rd6 Qb6 Kc4 Be6+ Rd5 Qc7 Kb5 Qg3 Kc4 Qe1 Rd2 Qa1 Rd1 Qb1 Bd6
1n3N2/1QN1Rrp1/3b2rk/3Qqb1Q/1bRb3B/1B1nR3/1QB1rP1n/K6N b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 e5 Kc2 d5 b4 a5 Kb2 e4 h4 d3 f6 d2 h6 Kg6 c5 d4 b6 a4 h7 d3 b7 e3 h5+ Kh6 b5 e2 b6 e1B f7 Ra5 c6 Ra6 c7 Qd6 Rh4 Bd7 c8B Qg6 Rc4 Nc6 b8Q Ra8 b7 Nge7 Ra3 Qg5 Nc3 Ne5 Nb5 Bf5 Ka1 Qg3 Ne2 Nf3 Nc7 Ra7 Be6 Nh2 Rb3 Qe3 Ng3 a3 Nh1 a2 Qa8 Qe2 b8Q Nc6 Qab7 Bd6 f8N Qe5+ Rbc3 Rg8 Qf3 Ra6 Qd5 Rb6 Bb2 d1R+ Bc1+ d2 Bd3 Ra6 Bc2 Ra7 Qb2 Rh8 Qa8 Nb8 Re3 Ra6 Qab7 Rg8 Nd7 Rf8 Bg8 Rf7 h8R+ Kg5 h6 Rc6 h7 Kh6 Nf8 Rb6 Qbd4 Rc6 Kb2 a1B+ Ka2 Ra6+ Ba3 Rc6 Qdb2 Rb1 Bc5 d1N Bd4 Beb4 Bc3 Qg3 Bf6 Qe5 Bh4 Rb6 Qc3 Nb2 Qa3 Nd3 Qb2 Re7 Be6 Rf7 Rg8 Re1 h8Q+ Bh7 Qb3 Bac3 Qb2 Re2 Ka1 Rc6 Bd7 Ra6+ Bda4 Rb6 Bab3 Rc6 Nfe6 Bd4 Re8 Rb6 Re7 Rc6 Qe8 Bf5 Nf8 B6c5 Qf3 Rg6 Qec6 Bd6 Qcd5 Rg5 Qg4 Rg6 Qh5+
B3qnRR/k4QN1/1rN1q2p/q1rqB1R1/4q2B/1n2Q2P/b4bNK/5Q1B b - - 0 1 legal: proof: e4 d5 Bd3 a5 Bc4 b5 Be2 d4 Bf1 Ra6 Qg4 Rd6 Qd1 Rd5 exd5 Bh3 Be2 Be6 Bf1 Bc8 f4 g5 fxg5 c5 b4 axb4 d3 c4 dxc4 Bb7 Na3 Ba6 Nb1 Bc8 Kf2 Kd7 Kg3 Kc7 a4 Kb7 d6 e5 c5 f5 c4 b3 d7 b4 g6 b2 a5 d3 g7 b3 c6+ Ka7 c5 d2 a6 e4 c7 e3 c6 e2 Na3 b1Q Bb2 e1R Nf3 Bc5 Ng5 Kb6 a7 Qc2 a8B Re2 Ne6 Qe8 d8B Ka7 Be5 b2 Bh4 b1Q Nc4+ Qca2 Ne3 Nh6 g8R Nd7 Ng7 Nf8 h3 f4+ Kh2 f3 Rg1 f2 g4 Qa4 g5 Qa5 g6 Nf5 Ng2 Be6 c8Q h6 c7 Ba2 Qe6 Qe4 c8Q Be3 Qcc1 Nd4 Rb1 Re1 Rb8 Nb3 Qf3 d1Q Qff7+ Qdd7 Bc4 f1Q Bcd5 Qf2 Bdc6 Re2 Qf1 Rb2 Qee7 Qfc2 Qg5 Bd4 Qe3 Qcc5 Nf5 Qb7 g7 Rc2 Qc3 Rh7 Rh8 Qbc7 g8N Nd7 Qe7 Bf2 Nf4 Qf3 Rg5 Q7b6 Qd4 Qf8 Be4 Qd5 Qe3 Rc5 Qg7 Qg4 Bh1 Qbe6 Ng2 Qge4 Qg6 Re7 Qf7 Re8 Nge7 Rc8 Qec1 R8c6 Ng7 Rb6 Qce1 Qc8 Qe3 Qcc6 Rbg8 Nf8 Bf4 Qcb5 Be5 Qe8 Nc6+
3R2q1/1bnb1P2/7r/2r1N2B/2Nq3B/K1nR3Q/BBQbRp1b/Q3Nbk1 b - - 0 1 illegal: No proof kernel
2r1b3/bn1Q1R2/Nqrq3n/B4q2/BQNn4/2QR3n/2BRpNkP/4K1Q1 b - - 0 1 illegal: No possible last move
2B3qB/R1RR1Q2/nb6/nKQ2N2/RBr1Nn1k/5r1b/P1pq4/1QbnN3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 f4+ Kh4 d4 c5 h6 g5 f6 e5 f5 e4 f7 g4 f6 b6 h7 g3 d6 g2 d5 e3 d7 b3 d6 b2 Bd2 e2 Bb4 e1B Kb5 c4 Nc3 b1Q Ne4 Qb2 Qb1 Be7 f8Q c3 f7 Bd2 h3 Ra3 Nf3+ Kh5 h4 g1N Bc4 Bc1 Be6 Qd2 Ne1 Ne2 Qe8 Nf4 f8Q+ Ng6 Qef7 Na6 Rh3 c2 Rc3 Rb3 Rc7 Rf3 Bh3 Bg5 Q8e7 Qf8 d8N Be3 d7 Bf2 Qd6 Ne7 Ne6 Qg8 d8R Nc6 Rdd7 Na5 Nd4 Bg1 Nf5 Be3 Qfb3 Nf4 Qc5 Bf2 Bg2 Kg4 h5 Bd4 h6 Be3 Nd4 Kh4 Qf7 Bg1 Re7 Bh3 Nf5+ Kg4 Ned6 Qd1 Qb2 Bce3 Bd2 Nh5 Ra7 Qe2+ Ka4 Rf2 Bb7 Rf3 Qcd5 Qg2 Rc7 b5+ Ka3 b4+ Ka4 b3 Kb5 Bb6 Bc8 Bge3 Rd1 Qf2 Qc1 b2 Qc5 b1N Bc3 Qh2 Qb2 Bc1 Rd3 Nd2 Qb1 Ne4 Rd4 Qd2 Rd5 Qd8 Rd4 Rg8 h8R Rg5 Rd3 Nf2 h7 Nd1 Re8 Rg6 h8B Re6 Ree7 Qg8 Red7 Re4 Rd4 Nf4 Ra4 Rc4 Bb4 Kg5 Ne4+ Kg4 Nfd6 Kh4 Nf5+
B2nqBQ1/Q4b2/4r2Q/3N3B/1nb2R1k/2q1NPpn/2R1NrR1/1Kb3Nn b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 Kf6 b4 g5 c4 a5 Kc2 e5 c5 d5 c6 a4 b6 e4 c7 g4 b7 a3 b5 e3 b6 a2 h6 g3 h7 e2 h5 e1Q h6 Ba3 Bg2 Bd6 Nd2 Kg5 f6 Qde7 f7 Bd7 c8B Ba3 f8R Be8 Rh2 Nf6 Bg4 Nc6 b8Q Bf7 b7 Nd8 Bh5 Ng4 Qa7 Qe8 b8N Rg8 h8N Rg6 h7 Re6 Bb2 d3+ Kc1 d4 Nf1 Qe5 Ng6 d2+ Kc2 Qe3 Rc1 a1N+ Kb1 d3 h8Q Nc2 Qg8 Nb4 Nc6 Qf3 Qe1 d1B Ne3 d2 Rc2 Be2 Qc1 d1N Bg7 Bc4 Nd4 Qfc6 Qd2 Bc1 Nde2 Qc5 Bb7 Qe5 f3 Ngf2 Rg2 Nh1 Bc6 Ndf2 Ne7 Qc3 N7d5 Nh3 Bb7 Rb8 Ba8 Kh4 Bh6 Bg6 Rf5 Bf7 Bf8 Rc8 Nf1 Rb8 Qh6 Rbb6 Nfe3 Rbd6 Ne7 Rd1 Rf6 Rf1 N7d5 Rf2 Rf4+
3BnbNR/K3nr1q/4Q1bB/3r3q/1QNk2br/1P2Q2p/B2N2r1/5RQR b - - 0 1 illegal: No possible last move, all moves rejected
3BB1rQ/3NQ2q/8/K1B2bnN/1N1R2qp/P1k1nR2/3qrR1N/1Qb1n2n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kd7 f4 Kd6 d4 c5 Kd2 e5 f6 h5 f7 b5 f5 c4 a3 e4 g6 h4 f6 b3 Kc3 e3 Kb4 e2 g5 e1N g7 c3 g6 b2 Be3 c2 Rh2 c1N Nf3 Be6 Nc3 Nb3 Na2 b1Q Rf2 Bf5 Nh2 Qe4 Qb1 Nh6 g8N Na5 g7 Nc4 Rf3 Be7 f8Q Ng4 f7 Nf2 Nf6 Qg4 g8Q Nh1 Nh5 Nd7 Bf2 Rh6 Qh8 Re6 Qfg7 Rc8 f8N Nf6 Nd7 Nh7 Bd3 Bg5 Qe7+ Kc7 d6+ Kc6 Bc2 Kd5 Ba4 Bc1 Bg1 Re2 Rf2 Nb6 Ka5 Kc4 d5 Ng5 Nb4 Rb8 Rf3 Rc8 Bc5 Rb8 Na6 b4 Ra2 b3 Nb4 Rc8 Rd2 b2 Bc6 Re4 Rdf2 Re2 Nf8 Rb8 d7 Rc8 d6 Nd5+ Bb6 Ne3 Ba4 Qc7 d8B Qd7 Bc5 Rb8 Qef6 Qh7 Be8 Rc8 d7 Qh6 Qa1 b1Q Qe7 Qd3 Qb1 Qh7 Bc7 Qc2 d8R Qd2 Rd4+ Kc3 Nd7 Rb8 Bf7 Rf8 Be8 Rg8 Bd8
1RN1K3/3Qn3/k1r2b2/1RbN2R1/b1Pn1rq1/1BBq1B2/2B2pQ1/1Nnn3Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kf3 f5 c4 d5 h4 Kd7 b4 Kc7 e4 Kb7 h6 a5 h7 g4+ Kf4 g3 e6 d3 Ke5 g2 h5 f4 b6 f3 b5 d2 h6 d4 e7 d3 e8B a4 Rh5 a3 Ne2 g1N Bb2 f2 Nec3 a2 Be2 Ra5 Bf3 Be6 Bg6 Nf6 Rg5 Qc8 Nd5 Bf7 Bc3 Bg7 Kd6 Rg8 Ke7 Na6 h8Q Nb8 e5 Ra7 h7 Rf8 e6 Ra6 Qg8 Be8 h8Q Ne2 Qhh1 Nc1 Qa4 d1Q Bh7 d2 Bc2 Ka8 b7+ Ka7 Bb3 Qe2 Bc2 d1N Bb3 Nbd7 b8N Ne5 Nd7 Qd3 N7b6 Bh8 Qg6 Bc6 Qe4 Bd7 Qg4 Bc6 Qgg2 Ng8+ Kd6 Rf4 e7 Bf6 e8B Qcf5 Bg6 Qg4 Nc8+ Kb7 b6 Ne7 Bge4 Bd7 Bg6 N5c6 Qb5 Nd4 Bge4 Qf1 Bec2 Qd3 Qa4 Bf5 Qe8 Bd7 Qf7 Ba4 Qe6 Ra5 Qd7+ Ka6 b7 Rc5 b8R Rc7 Qf5 Rc6+ Kd7 Be5 Kd8 Bd6 Qd7 Bc5 Ke8 Qh7 Nd2 Qd3 Rb1 a1B Ba2 Rf7 R1b5 Rf4 Nb1 Ndb3 Ba5 Bf6 Bc3 Nd4 Bab3
1N5R/K1k2Bbb/3n1r1B/BN1R3N/rnp1q3/n2Q1q2/Qn2P1Q1/Bb2R3 b - - 0 1 illegal: No possible last move
2kN1Q2/7r/n2rQR2/N1r2Q1P/Bq3p1N/2rq2nK/B2bbBR1/bRB5 b - - 0 1 illegal: No possible last move, all moves rejected
N3K3/1nNn2Qb/qb1rN2Q/4p3/1RQB1P1b/1r1BB1R1/5nb1/N1Rq3k b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 b4 c5 g4 a5 f4+ Kh6 d4 e6 d6 a4 d7 c4 b6 h3 g5+ Kh7 b5 h4 d5 h2 b7 h3 g6+ Kh6 g7 a3 f6 a2 b6 c3 f7 c2 d6 Ra7 Nf3 Kh5 Ng5+ Kh4 Qh5+ Kg3 Nd2 Nh6 g8Q Qe8 Kf6 e5 d8N Kf2 d7 Ra6 Nb3 Nf5 Rg1 h1N Kg6 Ra3 Bd3 h2 Qh6 Be7 Rg3 Nd6 Bd2 c1Q Be3+ Ke1 Qhg7 Qd1 Rc1 Nf2 Na1 h1B Qh6 Rb3 Kg7 Nh3 f8Q Bg2 Qc4 Nf2 Qff7 Bf6+ Kg6 Qe7 Qfg7 Rf8 Bd4 Qe6 Be3 Na6 b8B Nc5 b7 Be7+ Kh7 Rf6 Ba7 Rg6 b8R Qf6 Rb4 Ndb7 Kg8 Qa6 Kf7 Rd6 Nc6 Bf6 d8N Bf5 Nd4 Nd7 Nb5 Bh7 Ke8 Be7 Nge6 Bg5 Ned4 Bh4 Ne2 Kf1 Nec3+ Kg1 Ne6 Kh1 Na4 Ndc5 Nb6 Nd7 Nc2 a1B Nbc7 Bd4 Nba8 Bb6 Na1 Ba5 Bac5 Bb6 Bcd4
3Qq2r/3r1b1B/1B1NB1nR/rp2R2b/1n1QKQNb/P1N3q1/2kr1B2/4R3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 g4 Kc5 d4+ Kb6 a3 Ka5 d6 c5 d5 e5 f6 h5 g6 b5 d7 c4 g5 h4 f7 b3 g7 Ka4 g6 c3 d6 h3 Ke4 h2 f4 c2 f5 b2 f6 Kb3 Bd3 Qe8 d8Q Rh3 d7 Rh7 Be3 Be7 f8B Nc6 f7 Nb4 Nf3 Bh4 Nc3 b1B Bb6 Ba2 Bfc5 Ra5 f8Q Ne7 g8B+ Kb2 g7 c1R Bb1 Ng6 Qd4 Rd1 Be6 Rd2 g8R Rg7 Re1 h1R Rh8 Re7 Qf4 Rh3 Bg4 Bf7 Rh6 Rh1 Nh2 Kb3 Ke3 e4 Be6+ Kb2 Ng4 Rhh2 Bba2 Kc2 Bf5 Bb7 Bae6 Bd5 Rab1 Bc4 Ra1 Be2 Rad1 Bf3 Re2 Rh3 Rde1 Rh1 Nf2 Bh5 Ng4 Nh8 Bh7 Ng6 Qa8 Rh2 d8N Rd7 Nb7 Rh1 Nd6 Rh2 Qg3 Rh3 Qd8 Rh1 Kf2 e3+ Kf3 Rh3 Ke4 Rh1 Rf2 e2 Rf5 Rh3 Re5 Rh2 Rf1 e1Q+ Qge3 Qg3 Qf4 Rh3 Re1 Qh8 Bg8 Bg5 Qc4 Rh1 Bf2 Rh3 Nf6 Bg4 Rh7 Rh5 Qd4 Bh4 Qc5 Rh6 Qd4 Bh5 Ng4 Be8 Bgf7 Qf8 Bg8 Bf7 Rg7 Rh8 Rh7 Qe7 Rh6 Qe8 Bh7
5R1b/2Q2qBN/3r3p/6rN/rQ2qB2/1P4bb/1nQNBRk1/nKN1r2R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 d4 Kd6 Kd2 e5 Kc2 c5 g4 a5 f6 h6 b3 e4 b6 e3 b7 h3 f5 a4 g5 h2 g6 a3 f7 c4 g7 e2 f6 c3 Qe1 a2 Qd2 Ne7 g8N Na6 b8Q+ Qc7 Qb4+ Nc5 Bb2 e1B Ne2 Ra4 Rg1 h1Q Rg2 Bg7 f8N Nf5 f7 Bg3 Nf6 Rg8 Nh5 Bh8 Nh7 Rg5 f8R Qf7 Rf2 Ne3+ Kc1 c2 Qd1 Qh4 Nd2 Ra6 Rb1 a1R Bc3 Kd7 d6 Kc6 d7 Kd5 d8B R1a4 Bc7 Bh3 Kb2 c1R Bd6 Qe4 Bf4 Nc2 Ra1 Rag6 Rb1 Na1 Qc2 Rd1 Rc1 Qe5 Kb1 Nd3 Bb2 Ke6 d5+ Kf5 d6 Kg4 d7 Qe4 d8Q Rd6 Bg7 Nb2 Qe7 Bg2 Qc7 Kh3 Nc3 Kh2 Na2 Kg1 Be2 Bh3 Rf3 Rf1 Re1 Kg2 Nc1 Rf2 Rh1 Rf1 Bc3 Rd1 Bg7 Re1 Rf2+
1Kn3Q1/5nN1/2r2pBR/r1Q2nb1/RPb1q3/1r2B1BR/1qB2Nr1/1Q3kN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 c5 h4 a5 e4+ Kb4 b6 g5 h6 f3 b7 a4 d6 g4 d5 f2 h5 c4 h7 g3 h6 a3 d7 a2 d6 c3 Be3 g2 Nd2 c2 Bd3 c1Q Bc2 f1N Rh3 Qh4 d8Q Be7 d7 Ra6 Qf8 Ng3 d8N Rc6 Ne6 Nf5 Ng7 Be6 b3 Kc3 b4 Qa3 Qb1 Bg5 Qd6 Bc4 Qc5 Na6 b8B Nge7 Bd6 Nb8 Bc7 Rd8 h8Q Qb2 h7 Rd3 Qg8 Nc8 h8R Qg4 R8h6 Qh4 Ngf3 g1R Bd6 Rg2 Ng1 Nb6 Nf1 Qg4 Ng3 Nc8 Nh1 Qe2 Nf2 Qf3 Qd5 f6+ Ke6 Nd7 e5 Ba6 Qb5 Qe4 Qb6 Kc4 Qa7 Rb3 Qb6 Kc3 Qa5 Ndb6 Qc5+ Nc4 Kd7 Bb5 e6 Ba6 Bd4+ Kd2 Bg3 N4d6 e7 Nf7 e8B Bb5 R3h5 Bc4 Rh3 Nd8 Bg6 Nf7 Bd1 Ke1 Be3 Re6 Kc7 Rc6+ Kb7 Kf1 Kb8 Qf3 Qc1 Qfe2 Bc2+ Qe1 Rb1 a1R Qd1 Ra5 Ra1 Rd6 Qb1 Rc6 Bc1 Qe2 Ra4 Qe4 Be3+
1R6/1R1rq1bq/kQ1N1pq1/P1n2b2/1R3n1B/b2N4/r3BNB1/qQ1RQ1K1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 d4 c5 a4 Kc7 e4 Kb6 h4 g5 e6 g4 d6 c4 e5 c3 d5 c2 e7 b3 e8B b2 d7 f6 h6 Bd6 a5+ Ka7 e6 b5 e7 b4 h7 b3 h5 Bc7 h6 Na6 d6 Kb7 Nh3 g3+ Kg1 g2 Nc3 b1Q Qe1 b2 Bh5 Bb8 e8N Qa2 Nf4 b1Q Rh4 Bc7 Bhe2 Qa4 Ne4 Ne7 Nd3 Ng6 Nef2 Qe7 d8R Nc5 d7 Bf4 Nd6+ Ka6 Rg4 Be3 Rb4 Nf4 Ra2 Re8 h8Q Ra7 Rab2 Qaa1 h7 Rg8 Bd2 c1B Qg7 Rc7 h8R Re8 R2b3 Ba3 Qg6 Ra7 Rh7 Rh8 Rh1 Rh2 Re8 Rc7 d8Q Bf5 Rb7 Rd7 R3b4 Qba2 Qc7 Qaf7 Reb8 Qh7 Qd8 Nfe6 Bc1 Bh6 Bg5 Bg7 Bh4 Nf4 Qf7 Rh3 Qb3 Re3 Qbb1 Re4 Rh3 Rc4 Re3 Rc2 Ree4 Rd2 Rec4 Rb2 Rc1 Ra2 Rd1 Qh5 Kh2 Qh8 Kg3 g1Q+ Kf3 Qh1+ Kg3 Qd5 Kh2 Qh7 Kg1 Qdf7 Bg2 Qfg6 Qb6#
B5N1/2r1B2Q/2q1P1K1/1b3nbN/NNqBRpq1/2r1R3/3k2R1/2nqQQ1b b - - 0 1 illegal: No possible last move
q1n2N2/1Rqn4/2Bp1B2/1BQ2QbQ/b1KN1R2/4rPN1/1k4q1/rR3nnR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 h4 Ke5 c4 a5 b4 g5 f6 a4 f3 d6 h6 g4 h5 g3 b6 a3 h7 g2 b7 a2 b5 e6 h6 Qb6 c5 Qa6 f7 Nd7 b8R Ne7 c6 Ra7 c7 Qb6 Kc4 d3 Na3 d2 Qc2 d1N Rb1 a1Q Ne2 g1N Rb7 Ra8 Bg5 Ne3+ Kd3 Kd5 Ng3 e5 Bf6 Ra6 Be2 Nf1 Qc3 Qf2 b6 Qg2 Nb5 Ra4 Nd4 e4+ Kc2 e3 Kd3 Rg8 h8R Ra5 h7 Bh6 f8N Bg5 Rh4 Ra8 Rf4 Qa5 Nfe6 Re8 Nf8 Qc5 Qc2 Ra1 Qc1 Qa5 Qa3 Qa8 Kc3 Nb8 Bb5 Bd7 c8B e2 Qa5 Bc6 Bd7 e1Q+ Kb3 Qe6 Qc3 Qe5 Qc2 Nc8 Qf5 Kc5 Kc3 Bd5 Bdc6 Nd7 Rc7 Bg8 b7 Bb3 b8Q Ba4 Rb7 Re7 Qc7 Qd5 Be5 Qf7 Bf6+ Re5 Rg8 Qg7 h8Q Qe7 Qh5 Qh7 Qd3 Re3 Rh8 Qf7 Qg4 Qe7 Rh1 Qd8 Qa5 Qc7 Qh5 Bd1 Qa2 Bb3 Qc2 Ba4 Kb2+ Kb4 Qf5 Nh2 Kc1+ Ka3 Qc3+ Ka2 Qcc5 Qf1+ Kd2 Qh3 Qd3 Nf1+ Kc3 Qh2 Kc4 Qg2 Re1 Kb2 Qdf5 Qca5 Rd1 Qc7 Rb1+
1R1N1r2/Qn5K/bp1Rq3/1r1BNP2/1rRQ1b1B/2bnQ2Q/Nk3rq1/7B b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 c5 h4 e5 f4 g5 d4 c4 a4 g4 h6 b3 h7 c3 a5 b2 a6 g3 h5 b6 d6 c2 a7 g2 d5 Nh6 d7 Bc5 d6 Rg8 h8R Rg4 Qd4 Rg7 Nf3 g1B Nc3 b1R Na2 Nf7 h6 Rg3 h7 Rb5 Bg2 Bh2 Qe3 Bd4 Rd1 Rg4 Bh1 Qg8 d8N Na6 d7 Nb4 Rd3 Rb8 a8B Bc3 Bd5 Ba6 Bd2 c1R Be1 Rd1 Rc1 Rd2 Bh4+ Qg5 Rg8 Rf2 Rd4 Nd3 h8Q+ Ke7 f6+ Kd6 Qh5 Kc5 Rh8 Qg8 Kf5 e4 Ne5 Rc8 Qh6 Rb8 Qh3 e3 Rd1 e2 Rc4+ Kd6 Qg7 e1Q Qh6 Qe2 Qg5 Qe8 Kg6 Qe6 f5 Bf4 Kh7 Qe4 Rg8 Qg2 Rd2 Bg3 Qe3 Bf4 Ndc6 Nd8 f7 Nb7 d8Q+ Qd7 Qf6+ Qe6 Nd8 Rc8 Rd4 Kc5 f8Q+ Qd6 Q8g7 Qe6 Ndf7 Rf8 Nd8 Rb4 Qge7+ Kb5 Qc7 Ka4 Rc4 Ka3 Qb8 Rb5 Qa7 Qc8 Rd1 Kb2 Qd6 Qe6 Qdc5 Rg5 Qcd4 Rg4 Rg6 Qe8 Rd6 Qe6 Rc1 Bh6 Rc8 Bf4 Rb8 Bh2 Qa4 Ba5 Rcc6 Bc3 Qc4 Rd4 Qc5 Rdb4 Qcd4 Bf4 Rc4
Q1q1N2K/5QBQ/p2B1nRn/NPRq3q/1r2Rr1b/k4R2/N3B3/n2n1b2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b6 Kd7 Ke2 Kd6 Kf3 Kc5 Ke4 Kb4 Ke5 c5 g4 h5 d4 h3 f4 h2 b7 c4 d6 a6 d7 e6 g5 h4 g6 c3 g7 c2 f6 h3 f5 Rh4 d5 Qa5 d8R Qb5 f7 Qc5 f6 Qa5 Bh6 c1Q Qc2 Be7 f8R Qd1 f7 Rd4 Na3 Qe1+ Ne2 Qf2 Rd6 Qb5 Nc4 Qb6 Ra5 Qc5 Nc1 Qd2 Qh7 Bd8 Rg1 h1N Rg6 h2 Na2+ Kb3 Rc6 Nf2 Ra4 h1Q Nd6 Ra7 Ne8 Nd1 Bf4 Qc4 d6 Nh6 g8Q Qcc2 d7 Qh5+ Rg5 Be7 d8N Qg2 Rf5 Bh4 Rg5 Qc3 Kf6 e5 Kg7 e4 Rgg6 e3 Bd6 e2 Kh8 e1N Be2 Nd7 b8Q+ Rb7 Qa8 Qgd5 Rac4 Rb8 Nb7 Nc2 Ra4 Qh3 Rc5 Rg4 Rf4 Na1 Rf3+ Ka4 b4 Rd4 Rf4 Ka3 Na5 Q3f5 b5 Rb4 Re4 Rb6 Bc7 Rf6 Bd6 Qh3 Rg3+ Rf3 Qgg7 Q3g4 Rg8 Nf6 f8B Qd7 Rh3 Qc7 Rg3 Bh3 Qf7 Qc8 R8g6 Bg2 Bg7 Bf1 Rg1 Rf4 R1g3+ Qd3 Rf3 Qb3 Bd3 Qbd5 Be2+
2RQB3/BQ3rBR/pQ1P4/2k2NRb/bNNn1br1/1b5K/N3q3/1qr1n3 b - - 0 1 illegal: No possible last move
2R1bN2/2R1Kp2/1nB1QP1N/q3R2r/k2r4/r1Brb3/BBq2Nn1/3qQ1Q1 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 a5 Ke3 h5 Kd4 d5 g4 Kd7 f4 h3 e4 a4 c4 h4 g5 a3 e6+ Kc7 Ke5 a2 g6 h2 e7 h3 e8B d4 b6+ Kb7 c6+ Ka6 g7 Ka5 c7 d3 c5 d2 b7 Qd7 c6 Kb4 f5 Na6 b8B Ka5 f6 Nb4 Nf3 Nd5 Bc4 Nf4 Ng5 Nd5 Re1 h1R Ne6 h2 Bb2 Rh7 Nc3 Ra6 Rc1 a1Q Ba2 Nh6 g8N Be7 Nf8 Nf5 Nh6 Nb6 Re3 Ra8 Qg1 Nh4 Nd1 Ka4 Nf2 d1R Rcc3 Bb7 c8R Ng2 c7 Bc5 Ba7 Qb5 Bc6 Rd3 Rc1 Bd4+ Kd6 Qb1 e5 Qc2 e6 Rh8 Re5 Be3+ Ke7 Rh7 Nhg4 Rh4 Nh6 Rhd4 Bc3 Nd7 Bc5 Nb6 Ba3 Ra7 Bab2 Ba6 Bb7 Qa5 Bc6+ Bb5 Ke8 Nd7 e7 Ra8 Kd8 Ra7 e8Q Nb6+ Bcd5 Ra6 Qe6 Ra8 Ke7 Be8 Qe1 Rg1 Qg4 h1Q Bb7 Qh5 Be4 Rh1 Bc6+ Qb5 Qg3 Qhd1 Qh2 Ra7 Qhg1 Ra8 Rb8 Rh3 c8Q Rh5 Qe6 Ra5 Rc8 Ra8 Bcd5 Qa5 Rc7 Ra6 Be4 Ra8 Bc6+ Qb5 Rd7 Qce2 Bb4 Ra7 Rcc5 Qec2 Bf3 Rc7 Bd2 Ra3 Bb7 Rdd3 Bdc3 Qa5 Bbd5 Ra7 Rc8 Rc7 Bf3 Rc4 Rdc7 Rcd4 Bc6+
4k2N/5p2/nQ1P3R/Bb5Q/3K1brN/N2Q2rn/nR2q1BB/NqRn3q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 h4 g5 d4 c5 e4 c4 b4 f3 Ke3 c3 d6 a4 b6 c2 b5 g4 d7+ Ke7 e5 a3 h6 g3 d5 a2 h5 f2 e6 g2 b7 Na6 b8Q Bg7 b6 Rh7 b7 Qc7 d8B+ Kf8 e7+ Ke8 d6 Bd7 Na3 Qc3+ Qd3 Qc6 Ba5+ Qc8 Ne2 g1N Nd4 Be5 Bg2 f1Q Nb3 Rh8 h7 Nf6 h6 Rg8 h8Q Nh3 h7 Bf4+ Kd4 Bb5 Bb2 Qf3 Rac1 Nd5 Na1 Nc3 Qa7 Qd1 b8R Qe2 Qb6 Nd1 Qe5 Rg7 h8N Rg3 Qh5 Qd8 Rb7 Qb8 Bbc3 Ra7 Be1 Rg4 Bg3 Ra8 Bh2 Ra7 Rb1 c1N Rc7 Rg3 Rb2 Rb7 Rc5 Rc7 Rc3 Rc5 Rcc2 Rcg5 Rc7 R5g4 Rc3 Kd7 e8N Qb7 Ng7 Qb8 Nf5 Ke8 Nb3 a1Q Nh4 Na2 Rc1 Qb1 Na1 Qa8 Rc5 Ndc3 Rc1 Nd1 Rf5 Qaf3 Rf6 Qff1 Rg6 Qh1 Rh6
kb2n3/2NRp2n/K2N2Q1/2Q5/B1r3q1/nqN1B1BR/2brP2b/Q1Q1Rb2 b - - 0 1 legal: proof: b4 g5 d4 c5 dxc5 h5 g3 a5 bxa5 h4 gxh4 g4 Bd2 f6 Bg5 fxg5 Kd2 d5 Kc3 Kd7 Kb4 Kc7 Kb5 g3 c4 g2 a4 g4 f4 d4 c6 g3 f5 b6 a6 d3 a7 d2 a5 Qd3 f6 Bf5 f7 Qe4 h5 Be6 h4 Bh6 f8Q Qe3 a6 Qe4 c5 Qd4 Qf5 Bg7 h6 Qf4 h7 Bb3 h5 Bf6 h6 Bg7 Nh3 g1B Ng5 g2 Rh3 Bb2 Nf7 Bh2 Qg6 g1Q Bg2 Nd7 Qe1 Rc8 a8Q d1B a7 Qd6 Qf1 Ba3 Nc3 Qd5 Be4 Ndf6 Bc2 Qg4 Rc1 Rb8 Qh1 Kc8 c7 Qb7 Qe1 Bd5 Bb3 Bc2 Qd2 Ne8 Re1 Ngf6 Qc1 Rg8 h8B Bg2 h7 Bf1 Bg7 Rf8 h8B Nh7 Bh6 Nef6 Bd2 Rd8 Be3 Ne8 Be5 Rd2 Bg3 Qd5 Nd8 Qg8 Ne6 Qf7 Qd5 Bb4 Qdf5 Kb7 c8R Ba3 Rc6 Rc8 Rd6 Rc7 Rd7 Bb2 Ne4 Be5 Nc3 Bf4 Ka4 b5+ Ka5 b4 Qe5 Bb1 Bd1 b3 c6+ Ka8 Bc2 b2 Bb3 Rc8 c7 Bc2 Qd6 b1N Qb6 Rb8 Qc5 Rb4 c8N Bb8 Nd6 Qg8 Nde4 Rbd4 Nc7+ Kb7 a8Q+ Kc8 Ba4 Qb3 Bb5 Rb4 Kb6 Rc4 Qa1 Na3 Ka5 Kb7 Ba4 Ba7 Nd6+ Kb8 N7d5 Ka8 Ka6 Bb8 Nc7+
1QB5/1BrpN3/q2Q3R/BR3K1b/6N1/1b3Brn/1kn1PRQb/1qq2N1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 h4 Kc4 b4 g5 b6 a5 e6 d3 e7 d2 e8B a4 b5 a3 h6 a2 h7 Bb7 h5 Qf6 h6 Nc6 Nf3 Nb4 Bg2 Ne7 Nh2 Rg8 h8N Ng6 h7 Nf4 Ng6 Nh3 h8Q Bd6 Qg7 Rc8 Ne7 Rc7 c3 Qh6 Kf5 Bf3 b7 g4 b8R g3 b6 Nc2 b7 Kb3 c4 Bh5 c5 f6 Be4 g2 c6 g1Q Qg2 Rg3 Ng4 Qa7 Bb2 Qa6 Bc3 Bf4 Ba5 Kb2 Bg6 Qh7 Bf3 Be5 Qdg1 d1B Nd2 Qh6 Rc1 a1Q Qc5 Qb1 Qd6 Qe3 Rf1 Bf4 Rf2 Qa3 Ke4 Qc3 Nf1 f5+ Kd5 Be5 Rh8 f4 Ke4 Qd2 Rh6 Qc3 Kf5 Qcc4 Bd5 f3 b8Q+ Nb4+ Be4 Bb3 Rd1 Qcc1 Rd5 Nc2 Rb5 Bf4 Bf7 Be5 Bfd5 Bf4 Qg1 Be5 Rg2 f2 Bf3 Bf4 Rh2 Be5 Qg2 Bf4 Nfe3 f1B Bde4 Ra7 c7 Be5 c8B Rc7 Beb7 Bf4 Qg1 Bg2 Nf1 Bh1 Qg2 Be3 Qg1 Bc5 Rg2 Bb6 Qh2 Bg1 Rf2 Ne3+ Kf6 Nc2 Qg2 Bh2 Kf5
2K1bR1R/1np1b1Q1/BQ1rN1R1/1P1B4/q1Q5/1nq2NBN/2b1Q3/k3qq1r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 a5 g4 h5 f4 a4 f6 h3 f5 a3 f7 a2 f6 h2 g5 e6 d6 h4 b6 h3 g6 Bb7 g7 Na6 d5 Bc8 b7 Rh4 d7 Nh6 g8B Nc5 b8Q+ Nb7 d6 Be7 f8Q Ra6 f7 Nf5 Nd2 Qe8 d8Q Qa4 d7 Rd6 Qg7 Nd4 f8R Nb3 Qe2 Rh7 Rb1 a1Q Ndf3 Rh8 Qe8 Rh6 d8N Bd7 Qef7 Be8 Bf4 Rh8 Ke4 e5 Kf5 e4 Bg3 e3 Ne6 Rh4 Rd1 Qc1 Rd5 Qc3 Rc5 Rh7 Rc6 Rh6 Qg2 Rh7 Ba6 e2 Qa7 e1Q Qe2 N3a5 b3 Ka3 b4 Nb3 b5 Rh6 Qb6 Rh7 Qc4 Ka2 Qff6 Ka1 Qe5 Rh6 Qee2 Qf1 Ng5 Rh8 Bd5 Qe1 Ne6 Rh7 Nfg5 Rh8 N1f3 Rh4 Rf1 h1Q Rh8 h2 Nh3 Qg2 Rf2 h1B Nf8 Rdh6 Rg6 Qgf1 Ke6 R4h5 Nfg1 Be4 Nf3 Bf7+ Kd7 Bc2 Ne6 Be8+ Kc8 Rh4 Bc6 Rd4 Be4 Rd6 Bd5 Rh4 Nfd4 Rh7 Rff8 Rh5 Nf3 Rh4 Nhg5 Rh1 Nh3
b2Q1n2/pbq3qr/B2RnBN1/8/N3k2B/RNbPrb2/KRQ1Q1n1/6N1 b - - 0 1 illegal: No possible last move
5k1B/1RK3b1/1N1NBb2/2NQ4/7Q/pR1Rrnr1/2nQb2P/b1bbBQ1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 c5 Kg3 f5 Kf4 a5 d4 a4 b4 g6 e4 g3 e6 a3 Ke5 g2 b6 f4 d6 c4 d5 g5 e7 f3 b5 c3 b7 g4 d7+ Kf7 Kd6 g3 e5 c2 e6+ Kg7 b6 f2 Bc4 f1B Nc3 Nf6 Bb2 c1B Rb1 Be3 Nf3 g1B Na4 g2 Ng5 Bgf2 Ne4 g1B Nec5 Na6 b8B Be2 b7 Bg4 Qe1 Qa5 d8Q Qb5 Bc3 Nb4 Nb6 Qa5 Rb3 Bc1 Bc7 Bf3 b8R Kg8 Rb7 Bd4 Qe5 Bgf2 Rd1 Rh3 Qf4 Nh7 Qh4 Qa6 Be1 Rg3 Qd7 Bfh6 e8N Nc2 e7 Ng5 Kc6 Bfe3 Be5 Ba1 Bh8 Bed4 Kc7 Bf6 Rd2 Bhg7 d6+ Nf7 Qc6 Bcg4 d7 Bd1 d8Q Bgf3 Bd5 Qf1 Qe6 Qh1 Qeh3 Rg5 Qf1 Bfe2 Qd7 Rd8 Rdd3 Rg3 Qe6 Ra8 Nd6 Ra4 Qe3 Re4 Qd2 Re6 Bc4 Ng5 Bd5 Nf3 e8Q+ Bf8 Qeh5 B8g7 Qf5 Kf8 Qfh5 Re5 Be6 Re3 Qd5
3K1N2/Rb4p1/1r1bQP1b/5qb1/1BBQ4/b2Q1r2/nB1NRnNk/B2b3R b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Ke4 a5 Kd5 e5 f4 d6 c4 e4 b4 a4 h4 e3 b6 a3 c6 g3 c5 a2 h5 g2 c7 e2 b7 e1B b5 Bf2 c6 Bh4 b6 Bd7 c8R Ra3 h6 Qe8 h7 Qe3 c7 Qf2 Nh3 g1B Qd3 Na6 b8B Bg5 b7 Nh6 Re8 Ng4 Re2 Bc8 Kc6 d5 Bb2+ d4 Nd2 Bd6 Kb6 Rd8 h8Q Nb4 Qh4 Qf3 Ba7 Be3 b8B Bb7 c8Q Nf2 Qc6 Re8 Qce4 Re6 Qh6+ Kf7 f6 Qg4 Qh4 Qf5 Qg4 Kg6 f7 Kh6 f8N Rc3 Qg1 Kh5 Qe5 Rh6 Qe6 Kh4 Bc7 Rf6 Bd8 Rh6 Bf6 Ra3 Rc1 a1B Rc7 Na2 Re7 Bc5+ Kc7 Bd6+ Kd8 Rb3 Rc7 Rb6 Be7 Rf6 Bb8 Ba3 Bb4 Rf7+ Re7 Rf6 Be5 Rf7 Bg2 Kg3 Qd1 Bh6 Bd5 Rf6 Bc4 Bg5 Qc3 d3 Qdc2 Bh6 Rf7 Bc5 Qd4 Bd6 Rc7 Bg2 Ra7 Bb7 Ng5 Kg2 Ngf3 Kg3 Ne1 Rf7 Nb3 d2 Ng2 d1B Nd2 Rf6 Rf1 Kh2 Qcd3 Rg6 Bf6 Rg3 Be5 Rf3 Bf6 Qh5 f5 Qg4 Bc1 Bc3 Bb2 Qf4 Ba1 Bcb2 Be5 Bc1 f6 Bg5 Q4e3 Bh6 Beb2 Qf5 Qed4 Bg5 Ne4 Bcf4 Nd2 Bh6 Rg1 Bfg5 Rh1+
NQ2Rq2/1Qb2rN1/rb6/2B3P1/2nBR1np/k3bR2/1nQNBN1n/1b5K b - - 0 1 illegal: No possible last move, all moves rejected
3RR2k/nP2n3/pQ1R1B1b/rb2K2b/q2n4/3NnNQQ/2B1BbN1/r1Q5 b - - 0 1 illegal: No possible last move
Q1rQ1R1N/p2b1Bq1/r3R1NB/5r2/2P1B1bb/1b1R1Qn1/rB3n2/k1K4N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 g4 d5 c4 h5 b4 e5 f4 e4 g6+ Kf6 g5+ Ke7 b6 Kd6 b5 Kc5 g7 Kb4 f6 h4 f5 h3 b7 d3 b6 d4 f7 h2 f6 Rh4 g6 Nh6 g8R Qe7 g7 Rf4 Nh3 Nd7 b8Q Nf5 b7 Ne5 Na3 Ng3 Nf2 Bd7 Qd8 Ng4 Bg2 Rf5 Re1 h1R Nb5 Rh2 Nd6 Rc8 Ra3 Qe5 Qe2 Be7 f8B e3+ Kd1 d2 f7 Bf6 Nh1 Bh4 Be7 Qf6 f8N Qg5 Kc2 d1B+ Kb1 Qf6 Ng6 d3 Rf8 d2 g8B Qg7 Bc6 Ba4 Qf3 e2 Rd3 Bb3 Bg5 Rf2 Nf7 Rh2 Bh6 d1B Qd5 Rg2 Nfh8 Rh2 Bf7 Rhf2 Bcg5 Ka3 Kc1 Ka2 b8Q Ka1 Qa8 Rh2 Be7 Rg2 Rf1 e1R Ba3 Re6 Re1 Ra2 Bb7 Rb6 Re6 Ra6 Qg2 Nf2 Be4 Bh5 Qf3 Bg4 Bb2+
qn5Q/NBNN3K/nBb1rN2/b3q3/2R3pQ/kb1R2B1/3QbqP1/R1b5 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 a4 exf4 axb5 g5 Nc3 g4 Nb1 Ra6 Qa4 Rg6 Qd1 Rg5 hxg5 Bg7 Qc2 Bh6 Qd1 Bf8 Kf2 Ke7 e4 Kd6 b4 f5 d4 c5 g6 h5 g7 f3 Kg3 h4+ Kf4 a4 e5+ Kc7 b6+ Kb7 e6 c4 d6 Kc6 e7 Kb5 Kg5 h3 Kg6 f2 e8N a3 b7 f4 d7 f3 d5 a2 d6 h2 Na3+ Ka6 b5+ Ka5 b6 Kb4 Nb5 c3 Na7 c2 Be3 c1B Rb1+ Ka3 Qd2 a1Q Nc7 Rh7 Ba6 Nf6 g8N Ne8 Nf6 f1B Bd4 f2 Nf3 Qb2 Ne5 Bb5 Rg1 Qe7 d8Q f1B d7 Bfe2 Rf1 h1Q Rf4 Rh4 Be3 Qc5 Rc4 Bc6 Bg1 Bh6 Kh7 Rh3 Qe7 Re3 d8R Be6 Rd3+ Qc3 Qd8 Bed5 Ned7 Re6 Be3 Qh3 Bf2 Qf3 Ng8 Be3 Qh4 Ba4 Na8 Nc6 b8Q Nc7 b7 Bb3 Ngf6 Qe5 Qh8 Nb8 Bg1 Bd4 Be3 Bc3 Bf2 Ba5 Bg3 Nc6 b8B Qcf2 Bc8 Na6 Bc7 Ncb8 Bb6 Bc6 Nc7 Bb5 Qg7 Qa8 Bb7 Ba4 Qh8 Bc6 Ra1+
nNBr1n1B/QrR2R1q/1Q2Qp1q/8/1NN5/5PKR/2k1bNn1/1r3rBr b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 b4 Kd7 g4 a5 b6 h5 g5 c5 b5 e5 g6 c4 g7 e4 b7 f6 b6 e3 f3 h3 Rh2 e2 Kf2 e1N Qb3 h4 Bh6 a4 Na3 c3 Rc1 c2 Ba6 Ng2 Nc4 Ne7 g8R a3 Bg7 a2 Rf8 a1R Rf7 Rh7 Bh8 Qf8 Qe3 Qh6 Qe6+ Ke8 Rh1 h2 Nh3 Nd7 b8N Rb1 b7 Nb6 d7+ Kd8 Nc6+ Kc7 Nb4 Ng6 d8N+ Bd7 Ndc6 Rd8 Nb8 Na8 Na2 Re8 Nb4 Nf8 d6+ Kd8 d5 Bb5 d7 Kc7 Nd6 Kb6 d8B+ Kc5 Nc4 Kd4 d6 Kc3 Bb6 Rd8 d7 Kb3 Nf4 h3 Kg3 Kc3 Nfd3 Kb3 Nf2 Kc3 Rhd1 h1Q Rd5 h2 Rh5 Kb3 Rh3 Kc3 Nd6 Be2 Nc4 Qd1 Be3 h1R Bc5 Qd3 Ba7 Rc8 d8Q Qf5 Qdb6 Rd8 Rd1 c1R Rdd7 Rcd1 Rc7 Rdg1 Nd7 Kb3 b8Q Rgf1 Bc8 Qc2 Qb5 Qf5 Be3 Qc2 Qa7 Qd3 Qbb6 Rg7+ Ng4 Qdh7 Nb8 Kc3 Bg1 Kb3 Nd3+ Kc2 Nb4+ Kd1 Rfe7 Rg5 Qba5 Rb5 Rf7 Rb7 Q7b6 Kc1 Qaa7 Kd1 Nf2+ Kc1 N4c6 Kc2 Nb4+
1K2Q1qN/2NB1rq1/4R3/rn1b1QbN/bpk1bB2/BR1N4/1P6/Q1b1bR2 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 b5 h4 e5 fxe5 g5 hxg5 Nf6 d3 Nbd7 a5 Nb6 axb6 a5 e4 a4 g4 a3 Ke2 Ke7 Ke3 Ke6 Kf4 c5 b7 h5 b8B a2 g6 c3 g7 c2 g8Q c4 g5 c3 d4 h4 d5+ Ke7 e6 h3 Ke5 h2 d6+ Ke8 d7+ Ke7 g6 Rh3 g7 Nh5 Na3 f5 Bf4 c1B Nf3 c2 Ne1 Ra5 Nd3 Nf6 Qh7 Rf3 Bh3 Bb7 Rf1 h1B Bg4 Qe8 d8N Nd5 Nf7 Nc3 Nh8 Bd5 g8R+ Qf7 Rg6 Qg7+ Rf6 Be3 Bc7 c1B Bd6+ Kd8 e7+ Kd7 e8N Kc6 Qa4 Be7 Qd1 Bed2 Qe1 Qg8 Re6 Bg5 Ng7 Kb6 Qd1 Be1 Nh5 Kc6 Nc4 Rf2 Nb6 Bf3 Na8 Bg2 Bd2 f4 Nc7 f3 Bf4 Bh1 Qf5 Kb6 Rb1 a1Q Qa4 Qa3 Ra1 Qb3 Ra3 Qg7+ Nf6 Qc4 Rb3 Kc6 Qa1 Kb6 Re7 Bg2 Ba3 b4 Kd6 Nb5+ Kd7 Bh1 Kc8 Kc6 Ne5+ Kc5 Nd3+ Kd4 e5 Be4 Ne8 Qcg8 e6 Kc4 Kb8 Bg2 Rd7 Bh1 e7 Bd5 Rd6 Bg2 Rg1 Rf1 Rh6 f2 Re6 Bge4 Rh1 Rg1 Bh3 f1B Bg4 Rg3 Rg1 Be2 Rf1 Bd1 Bh3 Rf3 Bg4 Q8h7 Nf6 Qhg8+ e8Q Rh3 Ra6 Rh6 Nh5 Rf6 Qe5 Rf8 Bd7 Rf7 Qf5 Kd4 Rc3 Ba4 Rb3 Kc4 Re6
QNn1NRR1/Bnp1Q3/Q4b2/1rNnkB1r/2pr4/2PB4/BbRbK3/1q6 b - - 0 1 illegal: No proof kernel
bn6/1ppN2n1/1Q4B1/2bN3b/r1rQP1kq/1QR1R1nN/6B1/R1B1rRK1 b - - 0 1 illegal: Other
3n1b1N/1B1K1n1b/N3Q3/QB1RB2r/qR1Bk3/2PR1q1Q/1n2p2p/N1b4r b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 f4 e5 b4 h5 g4 a5 f6 Ke6 f5+ Kd6 c3 a4 b6 h4 f7 a3 g6 a2 b5 h3 g5 h2 b7 Bh6 f8B+ Ne7 g7 Rh7 g8B Ra5 f6 Nd7 b8N Qb6 g6 Bg5 f7 Rh4 g7 Qc6 b6 Bf6 b7 Ra6 Qh5 Ra5 Nh3 Bg5 Na3 Bh6 Nc2 Qa4 Bf4 Rg4 Ng5 Rg1 Rc1 a1B Qh3 Bb2 Rd1 Bc1 Na6 Kc6 b8R e4+ Ke2 e3 Kf3 d3 Na1 d2 Be5 d4 Kf4 Kd5 Bb5 Nc6 Kf5 e2 Bc5 d3 Bcd4 Nd8 Bh7 Bb7 g8Q Bf8 Bg6 Re1 Rg1 Bc6 Rg3 Rh1 Bh5 Nf6 Bf3+ Ne4 Bg2 Bb7 Rf3 Nd6+ Kf6 Bc8 Rb7 Bf5 Rb6 Bh6 Ke7 Bh7 f8Q+ N6f7 Kd7 Bg7 Qb4 Bf8 Ne6 Ke4 Nf4 Ne6 Ng6 Ned8 Rdf1 d1Q Nh8 Qdc2 Rd1 d2 Rb8 Qd3 Rb7 Nh6 Qge6 Nhf7 Qc5 Qe3 Qb4 Qf4 Rd3+ Qf3 Nb8 Ra6 Qa5 Rc6 Na6 Rc5 Rf1 d1N Rb6 Bd2 Rd6 Bdh6 Rd5 Nb2 Rb1 Bc1 Ng6 Nd1 Rb4 Nb2 Nh8 Rc6 Qe7 Rh6 Qee6 Rh5 Bf6+ Kf4 Rg5 Qf2 Bb7 Qf1 Rd5 Qf3 Bfe5+ Ke4 Qh6 Nd6 Qf6 N6f7 Qfe6
2BRR3/Q2q1r2/1nk4K/1b1NpP1n/NQ3Q1b/r2qBN1p/3Qq3/3RBb2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f6 Kd7 Ke2 h5 Ke3 a5 Kf4 e5+ Kg5 c5 f4 c4 d4 c3 g4 c2 b4 h3 d6 a4 b6 h4 d5 a3 b5 h2 b7 h3 b6 a2 Nc3 Nc6 b8Q Nce7 b7 Qb6 f7 Qa5 Nf3 Rh4 Be3 c1Q Ba6 Qa4 Qd2 Kd8 d7 Qc4 Rd1 h1B Qd6 Bg2 b8Q Rh7 Qdb4 Rg7+ Kh5 Qa3 g5 Qab3 g6 Nf6+ Kh6 Ra7 Qa8 Kc7 d8B+ Kd7 d6 Nh5 f5 Qe2 Qf4 Nd5 Bh4 Qb1 Be1 Be7 f8Q Rf7 g7 Bh4 g8N Bf1 Ne7 Nb6 Ned5 Qbd3 Rac1 a1Q Bb7 Ra5 Qa7 Qab1 Rc2 Ra1 Na4 Ra3 Ba6+ Bb7 Rc8 Qbb5 Rb8 Qc6 Re8 Qc7 Qe7+ Kc6 d7 Bc8 d8R Qd7 Bc4 Ba6 Qeb4 Qe7 Nf6 Qc7 Be6 Bb5 Bc8 Qcd7 Nd5
1BNR1R1q/2n1nN2/1b3q1N/2pQ1BbK/P2QNB2/1b3Q2/rq1p4/k2r2R1 b - - 0 1 illegal: No proof kernel
QK6/RNrBR1B1/3q3B/1pn2B1k/rPQ3b1/1rN5/3qn1pN/n1QR1b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 a4 exf4 c4 d5 cxd5 Bc5 a5 Bb6 axb6 Rh6 Bh3 Rh7 Bf1 Rh8 Kf2 c5 Kf3 g5 Ke4 a5 Ke5 f5 b4 Kf7 h4 a4 e4 c4 d4 c3 h6 Kg6 h5+ Kh7 b7 f3 d6 a3 d5 a2 d7 g4 Kd6 g3 e5 g2 e6 c2 e7 f4 e8B f2 Nc3 Ra5 Nf3 Ra3 Nh2 Qe7+ Kc7 f3 d6 Nf6 Bd3+ Qe4 d8N f1R d7 Rf2 Re1 Nc6 b8Q Ra4 Qa8 Qg6 Bf5 Nd4 Kb8 Ne4 Nb7 Ne2 d8R Nc5 Bed7 Rg8 Qd5 Rg7 Qc4 Rf1 Rd1 f2 Re8 Re1 Bd2 f1B Re7 c1Q Bg5 Qd2 Be3 Kh8 h7 Rf7 Bf4 Kg7 h6+ Kf6 h8Q+ Rg7 Rac1 a1N h7 Qg3 Qd8 Qgd3 Qc7 Qd6 Bh6 Rf7 Bfe6 Kg6 h8B Kh5 B8g7 Rf3 Rc2 Re3 Bf5 Rf3 Rb1 Rc1 Ra2 Rc2 Rd1 Rh3 Nd5 Rb3 Nc3 Ra7 Ra6 Rc1 Rc6 Ra4 Ra6 Rc2 Ra7 Rc1 Bc6 Be6 Bd7 Rc2 Be4 Bg4 Bef5 Q6d3 Qe4 Ne6 Nd5 Qd4 Qc3 Qf6 Qb2 Rc7 Qc1 Nc5 Qec4 Qd6 Nc3
2b3N1/2BbR1qn/1QpBBb2/3Q2R1/k1n1r1R1/P1R3r1/2N2p2/K1n1qNQ1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 g5 Kc2 f5 Kb2 b5 e4 f4 h4 b3 a3 c6 h6 b4 h5 g4 h7 g3 h6 g2 d6 f3 e6+ Ke8 e7 Kd7 e8R f2 d5 Ra5 e5 Qc7 Re7+ Kd8 d7 Qb7 e6 Kc7 d8B+ Kd6 Rh4 Kc5 d6 Qa7 d7 Na6 Ne2 Kb5 Qd5+ Qc5 Rg4 g1Q Nd4+ Ka4 Nd2 Bg7 Bc4 Qe1 Bc7 Nf6 d8Q Rg8 h8Q Qa7 h7 Nc5 Nf1 Nd3+ Kb1 b2 Nc2 Re8 Qg8 Bd7 h8N Nh7 Nf7 Bf6 Nh6 Qb7 Ka2 b1N B1f4 Nd2 Rc1 Ra8 Bfe5 b3+ Ka1 Ra7 Qg7 Bc8 Ng8 b2+ Ka2 b1B+ Ka1 Bd7 Bd6 Ra8 Qb6 Rad8 Ba2+ Nc4 Qg6 Ra8 Rg7 Ra5 e7 Rb5 Bc7 Rb3 Rg5 Rc3 Bed6 Rb3+ Re5 Qa7 Qg1 Qb7 Rg4 Rc3 Rd1 Nc1 Rd3 Rb3 Rc3 Bc8 Nd4 Bbf5 Nc2 Bfd7 Reg5 Rb4 Nh6 Rg8 e8R Rg6 Ng8 Qa7 Qb7 Qd4 Qb6 Qde5 Rf5 Qe7 Re5 Qg7 R8e7 Rg5 Rf4 Rg3 Rg5 Nd2 Rh4 Re4 Rhg4 Nc4 Qdc5 Nb2 Be6 Nc4 Qd5
3q2NQ/1QBrNq1P/2R3B1/n1bk1pRq/4r3/2B4n/1QpbN3/RQ1b3K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kg2 Kd6 b4 a5 e4 g5 h4 c5 d4 g4 b6 c4 e5+ Ke7 h6 g3 h7 c3 b7 a4 h5 c2 e6 Kd6 e7 f6 e8N+ Kd7 d6 Ke6 d5+ Ke5 h6 a3 b5 a2 d7 Ne7 b6 Nec6 d6 Na7 Nc3 Nb5 Bd2 Nc7 Nb5 Kd5 Qb1 Ra4 Bd3 Be7 Bc3 Ne6 Rh5+ Ng5 Ne2 f3+ Kh1 f2 Bg6 Nc6 b8Q Re4 b7 Na5 Na7 Rf8 h8R Rf7 h7 Rg7 Rh6 Nh3 Rg8 Bf8 Qc7 Rf7 b8Q f1Q+ Ng1 Qe2 Q8b2 Qh5 Ne2 f5 Qcb6 Bb7 Nc8 Be7 Qa7 Bg5 Qa6 Bd2 Nf6+ Kc5 Qa8 Ba6 Qab7 g2+ Kh2 g1B+ Kh1 Kc4 Rg7 Bc5 Ng8 Qf6 d8B Rd7 Bc7 Qf7 Qb8 Kd5 Qa7 Rde7 d7 Bb5 d8Q+ Rd7 Ng1 Be2 Qab7+ Kc4 Qe8 Bd1 Qf8 Qe7 Ne2 Qd8 Be8 Qf7 Rc6 Kd5 Rg5 Qg6 Qf6 Qh5 Qh8 Qf7 Q1c1 Qh5 Rb1 a1Q Bg6 Qa4 Ra1 Qd4 Qbb1 Qg7 Qcb2 Qf7 Nce7+
brN1q1B1/2N3pK/R1n4Q/pR2k3/R3N1B1/2q1Q3/2N1qP2/B1brQnr1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 a5 c4 e5 h4 d3 b4 d6 h6 d2 c5 Ne7 h5 Nd7 b6 Nb8 c6 Qe8 c7 Ra7 b7 Ng6 b5 Nc6 b8R Nd8 h7 Qe7 b6 Be6 c8B Rc7 b7 Nf7 h6 Rc5 Nc3 Qd7 Ra4 Bc4 Qe1 d1R Nge2 Qe6 Nd4 Rc6 Nc2 Rc5 Bb2 Nd8 Ba1 Nh4 Bh3 Nf3 Bg4 Qg8 Be6 Nh2 Ra8 Qf7 b8Q Qe8 Qb3 Nc6 Ra6 Nf1 Rh5 Be7 Bg8 d5+ Kf3 e4+ Kf4 e3 Qb6 Bf8 Ne4+ Ke7 Kg5 d4 Qb3 e2 Qe3 Bd5 f6+ Kd8 f7 Kc7 Kg6 d3 Re5 d2 Rf5 Rc4 Rg5 Ba3 Rh5 Bc1 Re5 Qb8 f8N Qb2 Rh5 Qc3 Ne6+ Kd7 Rg5 Rb4 Rf5 Rb8 Nc7 Rb1 Ng3 Bh1 Rb5+ Kd6 Ne4+ Ke7 Bc4 Rb8 h8N Bg2 h7 Bh1 Ng5+ Kd6 Bce6 Bd5 Ne4+ Ke5 Bg8 Ng3 Qf1 e1Q Qh1 Qe2 Qe1 Nf1 Qc5 Qe3 Nf7+ Kf4 Nfd6 Ke5 h8Q Qe2 Bd7 Qe3 Qh6 Qe2 Ne3 Qh5+ Kh7 Qe8 Nc2 Nd8 Bf5 Ne3 Ra8 Ba3 Bfe6 Rdc1 Bef7 d1Q Bh5 Qe2 Qd2 Rg1 Qa7 Rbd1 Bg4 Nf1 Qe1 Bb2 Nc8 Bc1 Rb7 Bc6 Qae3 Bd5 Rb6 Bc6 Raa6 Ba8 Rb1 Nc6 Rb5+
n2QQbB1/3q1NpN/1P1q1Rr1/3Qr3/kBB5/2N3nR/p1n1R1q1/1QK2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Kd7 h4 c5 d4 f5 Kd2 a5 e4 f3 d6 f2 d5 a4 b6 f4 b7 a3 h6 a2 h7 c4 e5 f3 h5 Qa5 h6 Qb5 e6+ Ke8 e7 Kd7 e8B+ Kd8 d7 Kc7 d8R Kb6 d6 Ra4 d7 Nf6 Ba3 c3+ Kc1 c2 Rh3 Ra5 Nc3 Na6 Bf7 Nc7 Qd5 Ng4 Bc4 f1N Re8 f2 d8Q Qd7 b5 Nge3 Bg8 Ng3 b8Q+ Bb7 Bb4 f1Q+ Kb2 Qe2 Kc1 Qg2 Nf3 Ra6 Ng5 Ra5 Qbc8 Ba6 Re5 Qd6 Qf5 Qd7 Qe8 Na8 Qfd3 Nef5 Re2 Ne3 Kb2 Qd6 Rf1 Qd7 Rf4 Qd6 Rf6 c1Q+ Kb3 Qd2 Qb1 Nc2 Kb2 Qd4 Kc1 Qg4 Qd1 Qd7 Qd2 Kb7 b6 Re5 Qd3 Bb5 Qd5+ Ka6 Bf7 Rg8 h8N Re6 h7 Re5 Bc5 Ka5 Be6 Ba6 Nhf7 Bb5 h8Q Ba6 Nd1 Ka4 Bb4 Bb5 Qh4 Rh8 Qhd4 Rh6 Nh7 Rg6 Qh4 Qc5 Qhd4 Qdc7 Qdd8 Q5d6 Qd5 Qa7 Nh6 Qad7 Bg8 Ba6 Nf7 Bb7 Qd4 Be4 Qd5 Bd3 Re4 Bf1 Re1 Qe7 Re2 Qd6 Nc3#
2RQQ2b/2n2p2/qR2pQ1N/3B2rn/5B1r/NKRb3N/1P1r4/3kQBqb b - - 0 1 illegal: No proof kernel
b1q1Q3/3rPRN1/BnpN4/Q4NQR/2bbKnRB/B1r5/4p2q/2Q2kr1 b - - 0 1 illegal: No proof kernel
B1q2r2/1P1Bpbp1/3QR1nn/R1qR3r/1B1b2r1/5NbN/2N2QN1/1KQk4 b - - 0 1 illegal: No proof kernel forced: wxDB
5N2/1p1n1b2/3BRN1B/NBRqQ3/1brBQ2p/4PK1b/q3n3/rk1nQ2R b - - 0 1 illegal: No possible last move, all moves rejected
2Bn2r1/kpbB4/q1NBn3/4R1PK/qRR4p/Qb3N2/1N2QqrQ/1r4R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 c5 Kg4 Kc7 a4 Kb6 d4 e5 f4 c4 a5+ Ka6 g6 e4 d6 e3 g7 h6 d7 b3 d5 e2 f6 e1Q d6 b2 f7 Qe3 f5 Ne7 g8B Qd2 f6 Qe8 Nc3 b1R Ra4 Rb5 Nf3 Re5 Rg1 Qc2 Ba3 Rb5 Rb4 Qh7 Qe2 Qd3 Na4 c3 Nb2 Nf5 d8N c2 d7 c1Q Nc6 Qe7 d8Q Bd7 Kh5 Qa1 g4 Be6 g5 Qc5 Bh3 Qf2 Qd6 Bb3 Qh2 Nd4 Bc8 Bd6 f8Q Ne6 f7 Bc7 Qfd6 Qdd4 f8R Ra7 Bh7 Rg8 Bf5 Qe4 Re8 Qed4 Nce5+ Nc6 Qf8 Ncd8 Nc6 Qa2 Rc4 Qd3 Bd6 Qa4 Re7 Nd4 Bfd7 N4e6 Qf5 Rb4 Qc5 Rb6 Qa3 Ra8 Nb8+ Ka7 a6 Rb4 Rc5 Rg4 Re5 Rg2 Nc6+ Kb6 a7 Qdb5 Rg7 Qba6 Kg6 h5 Kh6 h4 Kh5 Rb8 a8R Rf8 Rg8 Rf4 Rf8 Rb4 Rf4 Rd4 Na7 Q4c4 Rc1 Qab5 Rg1 Nf7 Kg6 Rd1 Nc6 Rb1 Ra4 Qa6 Kh5 Qcb5 Rab4 Qa4 Na5 Ka7 Rfc4 Qa6 Bb5 Nc5 Bg4 Rg8 Bc8 Nd8 Bbd7 Nce6 Nc6+
1q2nN1q/1p1p2rq/1bknn3/1NR3R1/K1B1P2Q/4N1B1/b1Q3R1/3Q1BrN b - - 0 1 illegal: No proof kernel forced: wxLB
1R2B1Q1/pQpq2rb/3b1B1b/1R6/K1N1NRrR/2q1Pn2/kqN3n1/5QB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 Kd6 d4 f5 Kd2 g5 Kc2 g4 Kb3 g3 b6 g2 b7 f3 h6 f4 h7 f2 h5 f3 h6 Ne7 b5 Be6 b6 Ng6 Be3 Be7 Nh3 g1B Ng5 Bg8 Ne4+ Kd7 Nbd2 Bh2 Ra5 Bg1 Nc4 Bd6 Rb5 Ba3 d6 Ke6 d7 Qe8 d8Q Nf4 Ka4 Bd6 Rh4 Ng2 Rf4 Nd7 b8Q Ne5 b7 Qd7 Qbc8 Bh2 b8R Bg3 Qf8 Bh4 Qb7 Bg5 Rh4 Bf4 Qg7 Bg5 Rf8 Re8 Rff4 Re7 Qf8 Rg7 Qfc8 Bf7 Qe1 Rhg8 h8R Bh5 h7 Bg6 Qd1 Bh6 d5+ Ke7 Bb6 Bf5 Qb1 Rg4 Qca8 R8g7 Rb8 Bg6 h8B Bh7 Ba5 Rg8 e3 R8g7 Be2 f1Q Be1 Qh1 Bf2 Qh2 Bg1 f2 Qf1 Nf3 Bd1 R7g6 Ba1 Rg7 Bf6+ Kf7 Rf5 Qe5 Rf4 Qc3 Be2 Ba3 d6 Ke6 Qa1 f1Q Bd1 Qc6 d7 Bd6 Qb1 Qf2 d8N+ Kd7 Qc1 Qfb2 Ne6 Qd5 Nd4 Qf7 Nc2 Ke6 Qc8+ Qd7 Qg8+ Qf7 R5b7 Kd5 Be2 Qe6 Qf1 Qf7 Ne5 Qe6 Bb5 Qf7 Be8 Qe6 Nd3 Kc4 Rb5 Qf7 Qb7 Qe6 Qf8 Qd7 Qg8+ Qf7 Ncb4 Qe6 Ka5 Kb3 Ne5 Qf7 Nc4 Qe7 Qb6 Qd7 Qb7 Qd3 Nc2+ Ka2 Ka4 Qd2 Ng5 Qdc3 Ne4
Q3R3/1n2Rr2/2Q2QKb/BbRr1p1R/1b1P2B1/1N2n3/rBp2k1N/2q3bN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 a5 b4+ Kc4 d4 c5 d6 g5 b6 f6 b5 f3 b7 g4 b6 f2 d7 g3 Kf5 g2 e4+ Kb4 e5 a4 e6 a3 h6 a2 e7 c4 e8N c3 h7 c2 h5 Na6 b8R Nh6+ Kg6 f5 b7 Bd6 Ne2 Kc4 Bb2 g1B Nd2+ Kd3 Nb3+ Ke3 Ng3 Ra7 Nf6 Nc5 Bh3 f1R Bg4 Qf8 d8B Qe7 Ba5 Rd8 h8Q Bd7 Rc8 Bf4 b8Q Nb7 Qa8 Bb5 Rc5 Rd5 Qd3+ Kf2 Qc3 Qe4 Re1 a1B Rh4 Qf3 Re7 Qe3 Qhf8 Qc1 Rh1 Nf7 h6 Nfd6 h7 Nc4 h8R Bh6 Rh5 Ne3 Qf7 Re1 Rhe8 Ra6 Bc7 Ra2 Ba5 Bd3 Qc4 Bf1 Qca6 Bb5 Qc6 Re2 Nh7 Re1 Qff6 Re2 Ng5 Re1 Ba3 Bc3 Bb2 Bb4 Nf3 Nd1 Rh7 Re7 Nh2 Rf7 Rg7 Ne3 Rh7 Rf8 Rhe7 Rf7 Nh1+
k1RQ2q1/b2B4/RQR2N2/nKPQB1Np/1n2R3/3nB2b/3rb1pN/1r4b1 b - - 0 1 illegal: No proof kernel
3BRbN1/N1rQ1K1B/2brBQr1/1P2r3/bpp1NqQ1/2kn4/6R1/R5nB b - - 0 1 illegal: No proof kernel
2R3R1/b2N1B1N/QQ1brN2/1p3qB1/n1b1Nn2/7k/r3Pr1p/2KRB1rQ b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Kd7 d4 c5 Kd2 b5 a4 h5 e6+ Ke7 g6 Kf6 e7 Kg5 e8N f5 d6 b3 g7 c4 d7 b2 d5 h4 d6 h3 a5 Kh4 a6 f4 a7 h2 g5 f3 g6 f2 Bh3 f1R Nf6 Ne7 g8R Bb7 g7 Qc8 d8B Rf3 d7 Rf4 Be6 Ng6 Nh3 Rh6 Bf7 Na6 Nc3 b1R Nce4 Nc5 Ba5 Rf2 d8Q Qf5 Qb6 Nf4 Nhg5 Na4 Ngh7 Kh3 Nd7 Bd5 Ra2 Be7 Rc2 Bd6 Qg1 c3+ Kd1 Rf8 a8Q Bc4 Qaa6 Re6 Qe1 Rb2 Bd2 Rg2 Kc1 Ra2 Rf1 Rg1 Qd1 Ng6 Bg5 Nf4 Qd5 Rfe8 Rd1 Rf8 Rb2 c2 Be1 Rc8 Rb1 Rc5 Qdb7 Rd5 Rc8 Rd3 g8N Rf3 Ngf6 Rf2 Q7c6 Ra3 Kd2 c1B+ Kc2 Be3 Qcb7 Bec5 Kc1 Ra2 Rg8 Ng2 Rb2 Nf4 Rc2 Bd4 Qba8 Bd5 Rcc8 Bc4 Ng3 B4c5 Qh1 Bd4 Nge4 B4c5 Qc7 Ba7 Qcb6
4B3/R4bb1/r1NpB2k/n1NKn3/Q3r1Q1/1Pr2p1N/qR1RbQ2/R3r1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kf3 g5 Ke4 f5+ Kd5 Kf7 c4 Kg7 h4 f4 e4 f3 e6 d3 h6+ Kh7 b6 g4 b3 a4 e5 d2 e7 g3 e8Q g2 h5 a3 b7 d6 e6 a2 e7 Bh3 c5 Nc6 b8N Ra5 Qe2 d1B Nc3 Qc8 Rh2 Bg4 Na4 Ra6 Nh3 g1R Qf2 Rg3 Bc4 Rb6 Be3 Nd4 c6 Qa6 c7 Nc6 c8Q Ne5 Nc5 Be2 Qa4 Bg7 e8B Rg2 Nc6 Ne7+ Kd4 Rg1 Be6 Rc1 Ke4 Rc3 Bd4 N7g6 Kd5 Nc4 Be3 Rf8 Rg2 Rf4 Rh2 Kh8 h7 Re4 Rg2 Na5 Bd4 Bf6 Be3 Kg7 h8R Ne5 Rh7+ Kf8 h6 Bh5 Rc7 Bg7 h7 Bf7 Rb7 Qa8 Ra7 Ra6 h8R+ Bg8 Rh4 Bf7 Rhg4 Kg8 Rh2 Kh7 Rg5 Kh6 Rgg1+ Kh5 Rgb1 Kg6 Rb2 Kh7 Rd1 a1R Rhh1 Rb1 Rdd2 Rbc1 Bd4 Kh6 Rhd1 R1c2 Ra1 Rc1 Qg2 Re1 Bg1 Qb7 Qf1 Qb4 Qf2 Qa3 Qb8 Qa2 Qbb4 Rh4 Qe4 Rf4 Qf5 Re4 Qg4
R4k1B/1QRbrB2/1p1NBb2/3Kp1N1/3b2bP/5nNq/1rQ1RBr1/3n2Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 e5 Kf3 g5 Ke4 c5 a4 b6 h4 b3 d4 c4 f4 c3 a5 c2 h6 g4 h7 b2 f6 g3 a6 g2 a7 Nh6 d6 Nf7 d5 Qd7 f5 Qc7 d7+ Kd8 Ra2 Bg7 Bc4 Bf8 Na3 b1B Nb5 Qc5 Be3 c1B+ Qc2 Bb7 Nd6 Bc6 Ne2 g1R Ng3 Rg2 Bf2 Bd2 Rc1 Nh6 f7 Ke7 d8N Rg8 h8B Bg7 f8R Bg5 Ne6 Be3 Ng5 Bd4 Rb2 Ng4 f6+ Kd7 f7 Ke7 Bb3 Qc3 Rc8 Ne3 f8Q+ Kd7 Qf5+ Ke7 Qf3 Re8 Qd1 Kf8 Qg1 Ba4 Rc7 Ba2 Ra1 Nc6 Bc4 Rad8 a8B Re7 Bb7 Ra8 Bc8 Nd1 Be6 Bf6 Bf7 Bb1 Ra3 Rd8 Raa2 Bb5 Ra8 Rc8 Bb3 Be2 Ba2 Bg4 Qd3 Qe1+ Re2 Be3 Nb5 Qf1 d6 Nd4 Rc3 Nf3 d7 Bd4 Nd6 Bc2 Rc5 Ba4 Bae6 Rh2 Kd5 Rh3 Ngf5 Rg3 d8Q+ Be8 Rc1 Qh3 Qc7 Rg2 Qb7 Rc2 Ng3 Rd2 Rc7 Rb2 Ra6 Bb5 Qc2 Bd7 Ra8+
R2R1b2/q3n2n/pBN2N1R/1b1Q1Nr1/1k3B2/n7/r1rPp3/1B1QKnQN b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 g4 Kd6 b4 e5 f6 c5 b6 h5 f5 h3 b7 h4 b5 e4 f7 h2 b6 h3 g5 e3 f6 c4 g6 Kc5 g7 c3 d6 c2 d7 Bd6 f8Q Qc7 d8Q Bd7 f7 Bb5 Nf3 Ne7 g8N Kb4 Bb2 c1N Nf6 Nd7 b8B Nb3 b7 Rh7 Nh4 Rh5 Bd4 Na5 Qg8 Rg5 f8R Nc4 Nf5 Na3 Bd3 e2 Nc3 Qc5 Re8 Nf8 Bb1 Nh7 Nce4 Qb6 Neg3 Qa6 Rg1 h1R Bb6 h2 Ra2 Bc5 Bf4 Rc8 b8N Qb7 Qdd5 a6 Rd8 Qa7 Ra1 Bd6 Rf1 Rc2 Qg7 Rg1 Nh1 R1g3 Rg1 Rb3 Rg3 Rbb2 Rh3 Ra2 Rh6 Nc6 Qgg8 Bf8 Qg7 Ne7 Qg6 Rh5 Qg1 Rg5 Nc6+ Ka4 Nf2 h1N Ra8 Ng3 Nh1 Nf1 Rd8 Rg3 Ra8 Ng5 Rh8 Nh7 Rg8 Rg5 Rh8 Bg7 Rhd8 Bf8 Nf2 Nh2 Qf1 Rg6 Qc1 Ng5 Qfg2 Rc3 Be4 Rh6 Rb1 Ra1 Rb3 Nh7 Nh1 Ra2 Bd3 Nf1 Qd1 Rg6 Qg1 Rg5 Bb1 Rc5 Rh3+ Rcc2 Ne5 Kb4 Rh5 Ba4 Rh6 Bb5 Nc6+
Q3N1N1/R3nBpK/4n3/3br1p1/3B1BP1/q2kR1Qn/2r1N2b/3rQRnB b - - 0 1 illegal: No possible last move, all moves rejected
1b1n4/2k1BP1p/Bpr1R1RQ/b7/7K/N2nRBNQ/b3rQq1/b2BrN2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 f4 e5 Kf2 c5 Kg3 c4 a4 c3 f6 b6 f7 b3 g6 b2 g7 c2 d6 e4 a5 e3 a6 e2 f5 Nh6 g8B Qc7 d5 Qc6 a7 Qa4 f6 Na6 Na3 b1R Nf3 Qe4 Rg1 Qe7 Bg5 c1B Kh4 Bb2 g4 Bc3 Qd4 e1B+ Qf2 Bd4 Nd2 Nb4 Ba6 Rb8 a8B Nd3 Nf1 Bg7 f8Q Bb2 Rg3 Nc5 Re3 Qd8 Ra2 Ba1 Rae2 Rb3 Re6 Rb1 R2e3 Nb3 Bf7 Be5 Bh5 Nc5 f7 Ng8 Be7 Nd3 g5 Rb7 g6 B1c3 Bd1 Rc7 B8b7 Ba5 Ba8 Bh6 g7 Rc6 Rg6 Ba1 Ree6 Nf6 g8N Bf4 Nh6 Ne8 Nf5 Nc7 Qh6 Qg8 N5g3 Qg7 Re3 Re8 Rge6 Bb7 Rg6 Kc8 d7+ Kb8 d6 Ne6 d8R+ Bc8 d7 Kc7 Be2 Re1 Bd1 Bb7 Rb8 Nd8 Ree6 Rc3 Re3 Bd5 Bc6 Ba2 Bcf3 Rc6 Rge6 Rg8 Rg6 Qb2 Rge6 Rg5 Rg6 Re5 Re6 Nb7 Rg8 Nd8 Rgg6 Qe2 Qg1 Qg2 Qf2 Re4 Rd6 Kb8 Re2 Ne6 d8Q+ Rc8 Qd7 Nd8 Qg4 Rc6 Qh3 Re3 Bb5 Kb7 Rde6 Bb8 Ba6+ Kc7 Rb2 Nb4 Rb3 R3e2 Rbe3 Nd3 Qf8 Ba7 Qg7 Bb8 Qh6
8/kNPKp3/Q3RbBN/1B1p1Q2/3r2rR/1Q1R1q1n/nb1N1B2/rr3b1Q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 h5 Ke4 d5+ Ke5 Kd7 b4 Kc7 f4 Kb6 g4 h4 c4 a4 c5+ Kb7 f6 d3 g6 h3 f5 a3 c6+ Ka7 f7 a2 g7 h2 g5 d2 c7 Nf6 g8B Rh5 b6+ Kb7 g6 Rh6 g7 Ne8 f6 Rh7 b5 Ra6 Nc3 Ra3 Nf3 Ra5 Ne4 Ra3 Nc5+ Ka8 Nb7 Rh8 Bh7 Rg8 Bg6 Nd7+ Ke6 Rh8 g8N Nd6 Nh6 Bg7 f8R Ne4 f7 Bb2 Rb1 Bf6 Rb3 a1B Rd3 Bab2 Qe2 d1R Be3 Rd2 Bf2 Nc3 Qe1 Rd1 Nd2 Raa1 Rg8 Na2 f8Q Rh7 Qe2 Rg7 Qf7 Bfe5 Qf5 Qf8 Rh8 Rab1 Rg1 h1R Rgg3 Bbd4 Rge3 Bb2 Qeh5 Rg1 Qh1 Bf6 Re4 Rg8 Rh4 Rg4 Rh7 Rd4 Rf7 Bg7 Rf6 Nc5+ Ke5 Rdc1 Qfh3 Ne4 Nd6 Ba3 b7+ Ka7 b6+ Ka6 b8Q Rc5 b7 Re1 Rf3+ Rb5 Be8 Kb6 Qa8 Ra1 b8Q+ Bb7 Ke6 Rbb1 Qa4 Ng5+ Kd7 Bb2 Re6 Be5 Re3 Qf3 Qf5 Nh3 Qc4 Rgg4 Bg6 Bg7 Qc8 Ka7 Qb3 Ba6 Rc3 Be2 Rce3 Bd1 Bb5 Be2 Rc3 Bf1 Rd3 Bf6 Qa8+ Kb6 Qc6+ Ka7 Nb7 Qe4 Qd6 Qf3 Qa6#
Nr1r3R/2pBkB1n/KP2N3/bpb1R3/q1B3Q1/N1n1BR1r/5r1Q/3b1Q2 b - - 0 1 illegal: No proof kernel
B7/P5Nk/n1p1QrB1/2Qb4/QNbBp1Nb/1R2Kn1q/1bR3R1/5rrB b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 Ke2 Kf7 g4 Kg6 a4 e5 d4 b5 f4 h5 d6 b4 f5+ Kh7 d5 b3 f6 b2 a6 e3 a7 h4 g6+ Kh6 d7 e4 a5 h3 a6 c6 f7 h2 g5+ Kg7 d6 Rh3 Ra2 Qe8 d8Q Rf3 d7 Bb4 f8Q+ Kh8 g7+ Kh7 g6+ Kh6 Qc5 Bb7 Qa4 Bc8 Nc3 b1B Nd5 Qe6 Rc2 Rf7 Bg2 Qe7 Qe8 Rf1 d8N Bc3 Nh3 Be6 Bb2 Nf6 g8R Qh7 g7 Ng4 Nf2 Ne5 Nb4 Bd5 Ne6 Nf3 Qf7 Be5 Bd4 Bba2 Qfe7 Kg6 Ng4 Qh3 Rg1 Bf6 Bh1 Kh7 Rg2 Be5 Rd8 Bab3 Rd7 Rg1 Rb7 Bbc4+ Nd3 Rf1 Rb3 Bf6 Ba1 Bb2 g8B+ Kh8 Bf7 Kh7 Ng7 Rg1 Qe6 Rf1 Rf2 Rg1 Bg2 h1R Be8 Rf1 Bh5 Rhg1 Bh1 Nd7 Rg2 Rf8 a8B Nb8 a7 Rf6 Be8 Na6 Bf7 Ba3 Bd4 Bb2 Bh5 Ne1 Kd1 e2+ Kd2 Nf3+ Ke3 e1B Nb4 Bh4 Bg6+
RrNR1Nn1/p1r2Bb1/2B1R3/q3pNQ1/2kQQ2r/P4b1B/4R1r1/Kn5n b - - 0 1 illegal: No possible last move, all moves rejected
n1QBBb2/r2q3N/1rQnR3/1N1K3k/3Q2b1/P3R1nn/pB3N1p/2qRB3 b - - 0 1 illegal: No proof kernel
K1NRBkN1/3nq2n/3Q1rrQ/R2BBp1b/2qNQ3/b1P1n3/6Rp/2N1n3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 Kd3 f5 Kc4 h5 Kd5 a4 b4 h4 e4 h3 g4 a3 g6 a2 b6 d6 b7 d3 b5 d2 c3 h2 b6 Qh4 g7 Qh5 e6 Ra3 g5 Ra8 e5 Qh4 g6 Qf6 e7 Qh4 Ne2 Qg3 Bg2 Qh4 Rg1 Nh6 g8N Bg7 Na3 Ra6 Nb5 Nf7 Nbd4 Nd7 Kc6 d5 b8R Bf8 g7 Ng5 Qc2 d1Q Bf4 Kf7 e8N Qd3 Nc1 Nh7 Qa4 Ba3 e6+ Kg6 e7 Kf7 Be5 Bb7+ Kc7 Qc4+ Qc6 Ba8 b7 Qf6 Rd8 Qg5 Ne6 d4 b8Q d3 Bd5 d2 Rg2 d1N Qb6 Qf6 Nd4+ Qe6 Qb1 Ne3 Qe4 Bb7 Qc5 Bc6 Qd6 Rb6 Ngf6 Rf8 Ng8 Ra6 Kc8 Ba4+ Kb7 Bd1 Re2 Rc6 Rg2 Bh5 Ka8 Rb6 Rb1 a1N Rb5 Nac2 Ra5 Bg4 Qc6 Ne1 Nd6+ Kg6 Qc7 Rf6 Nc8 Kf7 Qd6 Bh5 Qb4 Rg6 Nf6 Rg3 Qc5 Kg6 e8B+ Kh6 g8Q Qe7 Qe6 Kg7 Qcc6 Kf8 Ng8 Rg4 Qc5 Rg7 Qh6 Rf6 Qhf4 Rg3 Qd6 Rgg6 Qh6+
nbQq2b1/B1kN4/2B2n2/2pBR2R/2p2Nbq/bQ2N2r/1B1QP3/3rRK2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 h4 Kd7 d4 c5 b4 a5 h6 f5 h7 g5 h5 g4 d5 f4 h6 f3 b6 a4 d6 g3 b5 a3 b7 a2 e6+ Ke8 d7+ Ke7 b6 g2 Na3 Ra6 Qb3 Kd6 e7 Nc6 e8B Qc7 b8B Nd8 b7 Bg7 Ba7 Be5 b8N Ne6 Bb2 Qd8 Rh5 Nf6 Nh3 g1Q Nc2 Qg4 Bg2 f2+ Kf1 Qh4 Bd5 Kc7 Re1 a1B Ne3 Rd6 Rf5 Bh2 Re5 Bb7 Nf4 Bg3 Bc3 Bb2 Bd4 Ba3 Bb2 Rf8 h8Q Bc8 Bh1 Rd1 h7 Bb7 Qg7 Bd5 h8R Rg8 Rhh5 Rh8 Be4 Rh6 Qg6 Rh8 Kg2 f1B+ Kg1 Bh3 Bg2 Ng7 Kf1 Bg4 Be4 Bg8 Bd5 Ne6 Qh6 Kd6 Qg6 Nc7 Qh6 Qe7 d8Q+ Qd7 Qc8 Na8 Qa6+ Kc7 Qg5 Qd6 Bec6 Qd8 Nd7 Qe7 Qg6 Bb4 Rhf5 Qg5 Nd3 Qd8 Re6 Rh3 Re7 Qh4 Rh5 Bd6 Nf4 Ba3 Qgd3 Be5 Qd2 Bd6 Qaa4 Kc8 Ree5 Bb8 Qa6+ Kc7 Qc8+
Q1BR1n1B/7r/1q1n1n1Q/PkRBNRQ1/2qnN1N1/8/p1p1rb2/KN3b2 b - - 0 1 illegal: No proof kernel
1N2N1B1/1b1QB2q/1bn2QPq/2Q1Bn2/K3n1Rr/1p1pnNN1/6r1/k2RR3 b - - 0 1 illegal: No possible last move
2q4Q/K1n1R1nQ/2R2pr1/N1B2r2/pBN1Q1Pn/qBR3b1/1N1Q2n1/kb6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 d4 Kd6 b4 c5 g4 h5 e4 a5 b6 a4 g6 h4 g7 f6 b7 f3 Ke3 f2 b5 c4 e5+ Ke7 d6+ Ke6 b6 Kd5 e6 h3 e7 h2 e8Q c3 d7 c2 Ne2 Kc4 d5 Kb3 Kd4 Ra7 d6 Nc6+ Kc5 Rh7 b8R Rh6 b7 Nge7 g8Q+ Nd5 Bd2 Kb2 Qe4 c1N Qgh7 Rh3 Bb4 Nd4 Nf4 Rh6 Nd2 Nf3 Bc4 f1N Bb3 Nfe3 Re1 h1Q Ra3 Nc7 Kb6 Qe8 d8B Ng2 d7 Ne2 Bde7 Qh3 d8Q Ned4 Bec5 Bf5 Rc8 Nde6 b8N Nfh4 Nc6 Bd6 Na5 Ng7 Qde2 Qe6 Qdh8 Rg6 Qd1 Ra6+ Kb7 Rb6+ Ka7 Rb5 Re3 Qc4 Qe2 Qc2 Ndc4+ Kb1 Nd3 Bg3 Qd2 Qc1 Ba2+ Ka1 Ndb2 Qc2 Rac3 Qc1 Qc6 Bb1 Re7 Qc2 Bb3 Qc1 Bf2 Rf5 Bfc5 Qc2 Qe4 Qc1 Nd3 Qa3 Ndb2 Qh1 Qb7 Qe1 Qa8 Qe6 Qe4 Qg8 Rd8 Qe8 Rd6 Qc8 Rc6
1K1Q1q2/4N3/B1rBP3/b1rQ1B2/1N1n4/2qpR1nq/1kNR1pbq/Q3R2Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 b4 Kc4 e4+ d3 h4 f5 h6 d5 h5 a5 e6 g5+ Ke5 f4 b6 g4 b7 g3 b5 g2 e7 a4 e8R f3 b6 f2 h7 d4 h6 a3 Nf3 g1Q Ne1 a2 Nc3 Qh4 Nd5 Qg6 Ne7 Kc3 Ba3 d2 Bd6 Be6 Ba6 Kb2 c4 Bh3 c5 Bc8 c6 Kc3 c7 Qhg4 Nc2 Kb2 Re1 Nf6 Qf3 d3 Rad1 Be6 c8B Bd5 Bf5 a1Q Re3 Rg8 h8Q Qh3 h7 Qgg2 Qg7 Qa5 h8Q Nh5 Qf7 Qg1 Qh1 Rg5 Qhf6 Bc6+ Qd5 Ng3 Ke6+ Qc3 e5 Qgh2 Qg7 Nd7 b8N Rh5 Rde1 d1Q b7 Qf3 R1e2 Ra7 Rd2 Ra8 Qh8 Bh6 Re1 Be3 Qg7 Bb6 Qf6 Ba5 Re3 Ba4 Nbc6 Nb8 N6b4 Nc6 Kd7 Rc8 b8Q Bb3 Qb6 Nd4 Qd8 Rc6 Qg7 Qf4 Qh8 Qh6 Qf6 Qf8 Qh8 Bc7 Kc8 Ba5+ Kb8 Rg5 Qc5 Bd5 Qf6 Bf3 Qd5 Rh5 Qg7 Nge2 Qgg1 Bg2 Qd1 Ng3 Qdg1 Qc4 Qa1+ Kb3 Re1 Rh4 Qf3 Ne6 Ned5 Qc3 Re7 Rhc4 Qe4 Nd4 Re6 Qfh6 Ne7 Qf8 Qd5 Qg8 Rg6 Qf8 Rg4 Qh4 e6 Q4h3 Qa4+ Kb2 Rge4 R4c5 Re5 Bf3 R5e3 Bg2 Qa1#
NrB1Q2n/B1bb1N1p/2B5/Q1bp1R2/P4qqb/R4Q1R/1r1n1B2/K1N2k2 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 c5 hxg5 Nc6 dxc5 Nb8 Kd2 Kf7 Kc3 Kg6 Kb2 Kf5 c4 e5 g4+ Kg6 f4 b5 a4 d5 c6 e3 a6 e4 a7 b4 c7 e2 c5 e1B c6 e3 f5+ Kg7 g6 Kf6 g5+ Ke5 f6 Ke4 f7 e2 g7 b3 g6 Ba6 c8B Bb5 c7 Qf6+ Nc3+ Ke5 Ne4 Ne7 g8Q Ba5 g7 e1B Ne2 Nd7 Nd6 Ng6 Be3 Bh4 Nc1 Rb8 a8N Qf4 Ra3 Nf6 Rh3 Ne4 Bf2 Bd7 Qf3 Nd2 Ka1 Rb7 Bb5 b2+ Ka2 Bfe7 Qd8 Re8 f8B Nh8 g8R Bb6 Bg3 Kd4 Nf7 Bec5 Rg5 Rb8 Bc6 Re2 Rf5 Rg2 B8b7 Qg4 c8Q Bc7 Bh6 Re2 Be3+ Kc4 Nb3 Kd3 Qe8 Qf4 Qcd8 Qg4 Bc8 Rg2 Qfe4+ Ke2 Bgf2 Kf1 Qf3 Ne4 Kb1 Nd2+ Kc2 Qf4 Nc1 b1Q+ Kc3 Qbe4 Bd4 Nb3 Kb2 Nd2+ Ka1 Qg4 Bde3 Qef4 Bd4 B5d6 Ba7 Bc5 Qfe3 Rg3 Q3e4 Rgb3 Qe3 Rb2 Qf3 Be5 Qb6 Bc7 Qa5
K1Bb3Q/Q3pQB1/rP2qn1R/q1RR1Nr1/4np1B/2N1Q1qb/1q1N4/k7 b - - 0 1 illegal: No proof kernel
5N2/rP1B3R/NN1R3r/BRKpQn2/3Q1Q1n/n1bB1n2/k3bp2/1q1N3q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 b4 Ke6 h4 Kd5 c4+ Ke6 e4 d5 c5 f5 b6 g5 c6 a5 h6 f4 h7 d3 b7 g4 b5 d2 b6 f3 Ke3 f2 Kd4 g3 h5 a4 c7 g2 h6 a3 Ne2 g1N Qa4 d1N Bd2 a2 Nbc3 Nb2 Rb1 a1Q Nf4+ Kf7 e6+ Ke7 e5 Ne2+ Kc5 Nd1 Rb5 Nb2 Nd1 Ng1 Bd3 Ra7 Ba5 Nc6 b8N Bg7 b7 Qb1 Na6 Nc4 Rh3 Nd4 Ng6+ Ke8 e7 Kd7 e8R Ne7 Rh1 Nef5 Re6 Ngf3 Rh2 N3h4 Rd6+ Ke8 e6 Ndf3 e7 Bc3 Qb4 Na3 Nf8 Kf7 e8B+ Ke7 Bd7 Qe8 Qf4 Qh5 Be8 Be6 c8N+ Kf6 Qd2 Ke5 Nb6 Bf7 Bd7 Be6 Kc6 Kd4 Rh3 Rg8 Qg5 Rg6 h8Q+ Rf6 h7 Bf7 Qhg8 Rh6 h8Q+ Rf6 Qc1 Ng2 Rh2 Nd2 Rb3 Qh6 Be4 Bh5 Rb2 Be2 Rb5 Nf3 Qe6 Qh4 Qf4 Qh5 Nc8 Kc4 Rh1 Qh2 Kb6 Qg1 Rh7 Ngh4 Qe7 Rh6 Qhf6 Qb4 Bd3+ Kb3 Q6d4 Ka2 Qee5 Qb1 Kc5 Qh1 Nb6
3qqQ2/2Rk1B2/N2p1Rnr/b1r1p2R/1Q1RQ2n/Bn1Pr3/N2n1K1N/5B2 b - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 d6 exf5 Ba6 a5 Bc8 a6 Bb7 axb7 Kf7 cxb5 Qd7 b6 Ke8 b5 Qd8 f4 a5 g4 e5 d3 h5 g5 c5 f6 c4 g6 h3 f5 c3 f7+ Kd7 g7 h2 f6 a4 Bg2 h4 Ba3 h3 Kf2 c2 Qf3 c1N Bf1 Nb3 Ra2 Rh6 Rc2 Be7 f8Q Nc6 b8R Nd2 f7 Ra5 b7 Nd4 b6 Nf5 Qe4 Rc5 Nf3 Nh4 Nc3 Qe8 Rc8 Bd8 b8Q Ne7 g8B Neg6 b7 Ba5 Na2 Qd8 Rc4 Qe8 Rg1 h1R Rd4 h2 Rg5 Rg1 Rf5 h1Q Rh5 Rg3 Nh2 Re3 Rc7+ Ke6 Qf4 Qd8 Qa8 Qc6 b8N Qb5 Na6 Qbe8 Bb2 a3 Qb7 Qf6 Qb4 Qg5 Qe4 Qgd8 Nc3 a2 Ba3 a1N Na2 Qdd7 Qg7 Ke7 f8R+ Kd8 Rf7 Nab3 Rf6 Qc8 Bf7 Qa8 Rc6 Kd7 Qf8 Qad8 Rc7+
3rQ3/Q1N2p2/2Nk3K/1r1p1r2/1RnNq1Bn/4r1q1/1B1PQN1b/2B1RRn1 b - - 0 1 legal: proof: g4 h5 gxh5 e5 a4 b5 axb5 d6 b6 Nc6 b7 Nb8 f4 exf4 b4 Nh6 c4 Bf5 b5 Na6 b6 Nb8 Nf3 Bd7 Ng1 Bb5 cxb5 Ng8 Kf2 Kd7 Kf3 c5 Kg4 a5 h4 g5 e4 c4 h6 c3 Kh5 c2 e5 f3 h7 d5 e6+ Kd6 e7 f2 Nf3 g4 Nd4 g3 Be2 f1R Bg4 g2 Nc3 g1N Qe2 a4 Nd1 a3 Nf2 Nd7 b8N a2 b7 Qc7 b6 Ra3 Nbc6 Re3 b8Q Ne5 b7 Nc4 Qa7 Nh6 b8R Nf5 Rb4 Qb8 Rab1 a1R Kg5 Qe8 h5 Nh4 h6 Ra5 Kh5 Rg8 h8Q Rb5 h7 Bh6 Ra1 Bf4 Rab1 Bh2 Kh6 Rf8 Qg8 Qb8 h8B Rd8 Qe8 Qc7 Ba3 Qb8 Re1 c1Q Bb2 Qb1 Bc1 Qe4 Bf6 Ngf3 Bh8 Rg1 Bg7 Rg2 Rhf1 Ng1 Nb3 Rgg3 Bgb2 Rgf3 Nbd4 Rf5 Qf8 Qc7 e8N+ Kd7 Qa1 Qce5 Nc7 Qg3 Qe8+ Kd6 Qa7
k1N2N2/b1Rn3B/2KpNQb1/6Rb/2Q1QB1R/4p1B1/3Pqb2/r1Bq1q1r b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 a4 Ne4 h4 gxh4 a5 Nc3 b6 Nd5 b5 Nf6 Ne2 Bc8 Ng1 Ng8 a6 Nc6 Qe2 Na5 Qd1 Nb7 axb7 Bg7 Ra5 Bh6 Ra1 Bf8 Bb2 e5 Ke2 h5 Ke3 c5 Ke4 a5 Kd5 c4 b8Q h3 f4 h4 g4 e4 b7 e3 g5 h2 b6 a4 g6 h3 f6 c3 g7 c2 f5 c1B f7+ Ke7 Qb3 a3 Qf4 a2 b8B Nf6+ Kc5 Bb7 g8R Be4 b7 Bc2 Ba3 Bb2 Nf3 Be5 Ng5 Qe8 Qfa4 Bg3 Bf4 Bf2 Bd3 Kd8+ Kb5 Bb4 f8Q Bc5 Nc3 Rh6 Rhc1 h1B Nce4 h2 Nd6 Bf3 Nc8 h1Q Bg3 Qe1 b8B Rh1 Rab1 a1Q Qa2 Rh7 Rb4 Rh1 Rh4 Bh5 Bbf4 Qf1 Qd5 d6+ Qc6 Nd5 f6 Nb6 f7 Qb1+ Qb4 Qb3 Bb2 Ra1 Qh6 Bb1 f8N Qbd1 Rc2 Qd7 Bc1 Q7g4 Rc4 Qge2 Bh7 Bf5 Qe4 Kc7 Qf6 Kb8 Nge6 Nd7 Rg5 Ba7 Qbc3 Bfg6 Qcd3 Qde1 Rc7 Q1d1 Kc6 Ka8 Qdc4
n5qB/2pB1qQ1/Q3BNNB/qr1Q3R/2n1R1bn/1RP2p2/4k2r/2K2Nq1 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 b4 g5 b3 g6 Bd6 axb3 Ne7 b4 Ng8 b5 Bc5 Rh3 Be7 Rh1 Bg5 hxg5 Ke7 Ra4 Kf8 Ra1 Ke8 Kd2 Ke7 b4 Ke6 e4 f5 c3 h5 b6 d5 g7 a5 b7 h4 b5 a4 b6 h3 g6 d4 Ne2 f3 Ra3 d3 Rb3 h2 Bh3 Nh6 g8N a3 g7 a2 Nf6 Nd7 b8B a1Q b7 f2 Ba7 f1Q b8Q Nb6 Qb7 Qf2 Qa6 Qa5 Qg1 Qf8 g8Q+ Qf7 Q1g6 Qg3 Q6g7 Rb8 Kd1 Qg4 Nd2 f4 Nf1 f3 Bf4 Rh7 Kc1 Nf5 Bh6 Nh4 Nf4+ Ke7 e6 Kd6 e5+ Kc5 e7 d2+ Kc2 d1N e8B Ne3+ Kc1 Nc4 e6 Qgg6 e7 Bg4 Bd7 Rh8 Rg1 h1Q e8R Qg5 Rg2 Qg1 Re4 Qgg6 Qd8 Qh7 Rh2 Qhg8 Ng6 Rb7 Bb8 Na8 Ba7+ Rb6 Ne8 Kd5 Rh1 Rb5 Bd4 Na3 Rh2 Kc4 Nf6 Kd3 Be6 Nc4 Qd5 Rh7 Bd7 Bh5 Bhe6 Bg4 Rhe2 Rh8 Re5 Rh7 Rh5 Rh8 Re4 Rh7 Bhe3 Ke2 Bh6+ Ne3 Rf5 Kf2 Nh5 Qg2 Qh8 Ke2 Bf4 Qg1 Bg7 Ng2 Nf6 Rh5 Bfh6 Rh2 Rh5 Nh4 Qh7 Rh1 Bh8 Rh2 Rd4 Nc4 Qg7 Qa4 Rf4 Qa5 Re4+
1kQQ2n1/4Q1B1/n1b4n/1N2NB1q/1QR2K1b/R2p4/Pprp3R/1NB1b1r1 b - - 0 1 illegal: No possible last move, all moves rejected
Q1N1Nn2/6Qr/qBn2B2/R2Bb1r1/pk2KQ1P/4bN1n/R3p2p/2RR3b b - - 0 1 illegal: No proof kernel
1B3BN1/N1B4b/B3R2K/rb2b1pR/Rp1QPn1k/Q2Nnr2/Q1pq4/4r3 b - - 0 1 illegal: No possible last move
n1r5/Q3Qb1B/1R1rqB2/3pp2B/n1n1N1PN/bp5K/2rR4/Q2NQRk1 b - - 0 1 illegal: No possible last move, all moves rejected
8/N1rq2b1/n1r2QpR/BN2BQp1/Kn4bR/3Qr1pP/N3R3/k4BnN b - - 0 1 illegal: Other
NB1Qn2k/1rn2B2/1NK2P2/1pQNBp2/bq3R2/4R2r/n2pQ1Q1/R4bb1 b - - 0 1 illegal: No proof kernel
N1Q1q3/Q1KbRr2/3B1pR1/BR3r1p/1nn5/2pQ3b/k1BP2N1/2R1br1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 h5 g4 c5 d6 a5 g6 f3 b6 c4 b7 f2 g7 c3 g5 a4 d7 a3 g6 a2 Na3 Na6 b8R+ Qb6 d8B Ne7 g8R Bg4 g7 Nd5 Qe2 Kb3 Nc2 Ra7 Ne1 Rb7 Nh3 Ba3 Qd3 Qg6 Ng2 Bd7 Ba5 Rb4 Rb5 f6+ Kd6 Rh6 e5 Rh7 e6 Nf4 e7 Nd5 e8N Nb8 Nc7 Bg4 Na8 Nf4 Kc7 Nc6 Re8 Bd7 g8Q+ Rf7 Re7 Qe4 Qc8 Ne5 Rg1 Nc4 Be2 f1B Nf2 Qg6 Nh1 Qg8 Rb1 a1R Bd1+ Ka2 Bc2 Qe8 b3 Ra4 Bb2 Bb4 Rc1 Bc5 Ba3 Bf2 Bd6 Be1 b4 Rb1 Rc5 Ra1 b5 Ra3 b6 Nd5+ Kb7 Nb4 Rb5 Rb1 Kc7 Rab3 b7 R3b2 Nh4 Bfh3 b8Q Rb3 Rg6 Ra3 Bb6 Ra5 Ng2 Ra1 Rbg5 Rf5 Ba5 Rf3 Rc5 Rf5 Qa7 Bh4 Rg1 Raf1 Rb5 Be1 Qab7 Bf2 Qbb8 Rd1 Rge1 Rc1 Qa7 Bh4 R1e2 Rcf1 Re1 Bg3 Rd1 Be1 Rc1
1B1N1b2/bn2r2q/BnkpBN2/Rpr5/4b1Q1/Bp1Q1P2/QR6/1N3KRr b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 h4 g5 a4 e5 c4 b6 h6 e4 f6 g4 h5 e3 f7+ Ke7 a5 g3 f3 g2 a6 e2 c6 b3 c7 Nc6 c5 Nb8 a7 Ba6 c8B Bb7 h7 Nc6 h6 Ne5 c6 Bg7 f8N Qe8 c7 Qg6 Ba3+ Ke8 Nh3 g1R Qd3 Nc4 Ng5 Be4 Nf7 Rg5 Rg1 Nf6 Ba6 b5 Bh3 Qh5 Be6 Nd6 c8Q+ Ke7 Ra2 Nd5 Rb2 Nb6 Kf2 e1B+ Kf1 Rb8 a8R Bf2 Qcc4 Re8 Qa4 Bb7 Qg4 Be4 Ra7 Rc5 Ra8 Rg8 h8Q Nb7 Nh7 Bf8 Nf6 d6 h7 Qh2 Qhg7 Be3 h8B Qh7 Q7g5 Bd4 Qgd2 Rg6 Qdg2 Rh6 Bg7 Rh1 Bh6 Bf2 Bd2 Bd4 Ba5 Nd7 Bc7 Nb6 Bb8 Be3 Nh6 Kd8 Qge2 Re7 Qec2 Nd7 Nf7+ Kc8 Ba7+ Kc7 Bb8+ Kc6 Ra2 Nd8 Bc8 Rc4 Ra5 Ba7 Ba6 Rc5 Qb2 Nb7 Qa1 Bd5 Rb2 Be4 Qa2 Nb6 Nd8+
Q1R4n/r1PR1Bp1/pqrp2Rr/8/QNNkB3/6Nb/2KBb1Q1/R3bn2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 b4 f5 h4 a6 e4 f4 h6 f3 h7 f2 h5 d6 c5 d3 b6 Ne7 c6 Nf5 b5 Be7 h6 Qc7 b7 Nd7 b8N Nc5 b6 Bf8 b7 Be7 Ne2 Ne3 Ng3 Ng2 Qa4 Bh4 Na3 Nd7 Rg1 Nb6 Nc4 Re8 h8R Bd7 h7 Re7 Rc8 Nd5 h8Q Ne1 Bg2 Qb6 c7 f1B Nc6 Be2 b8Q Ra7 Nb4 Nf4 Qa8 Rf7 Qh5 Rf6 Qg5 Rh6 Qg6+ Ke7 e6 Nc2 e5 Ne3 Be4 Nf1+ Kc3 d2 Kc2 d1R Bd2 Re1 Qg4 Ng6 Qf3 Rb1 Qg2 Nh8 Rd8 Bc8 Rd7+ Ke8 e7 Kf7 e6+ Kf6 e8B Rc1+ Kb3 Rc2 e7 Rc1 Bf7 Rc2 Na3 Ke5 e8R+ Kd4 Red8 Rc6 Nc4 Bg4 Kc2 Be2 Re7 Bh3 Red7 Ng6 Rc8 Nh8 Nh1 Be1 Ng3 Bhg4 Rh1 Be6 Rh5 Bf5 Rg5 Bh3 Rg6
rqk5/QP2p1N1/RBpb4/nNp2rQ1/5R1n/1B1R1b2/1KnQb1B1/3QN3 b - - 0 1 illegal: No possible last move
2N2nRB/5R1n/2R1q3/1b2Qrnk/6qP/bQ1N1r2/Q1p1N1pp/2B1KB1Q b - - 0 1 illegal: No proof kernel
5N2/2RnRNnr/4R1r1/4Q2R/1p1q2b1/2B3q1/2pPpQB1/K1bQBbkN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kd7 f4 Kd6 h4 Kc5 a5 Kd4 f6 b5 f7 e5 h6 g5 h5 c5 a6 e4 f5 g4 h7 e3 a7 b3 f6 b2 h6 b4 d6 g3 d7 c4 Ra6 g2 Na3 b1B Nh3 g1Q Nf2 c3 Nc4 Bd3 Nd6 Qe7 d8B Qe8 Bb2 Bg7 f8N Qeg6 f7 Q1g4 Bh4 Be4 Bg2 Beb7 Rc6 Ne7 Rc7 Rg8 h8Q Ba6 h7 Bf1 Rh3 Bd7 Nh1 Kd3 Rf3 Q4e4 Rf6 Qd4 Re6 Nf5 Bf2 Bf6 Qg7 Qg5 h8R Qg3 Rh5 Rh8 Qg5 Ng7 Qe5 Rh7 Re7 Bg4 Ba1 Nc6 Bb2 Rb8 a8R Rb6 Rae8 Nb8 Re6 Nd7 R8e7 Ra6 Qf3 Rh8 Kd1 c2+ Kc1 Rh7 Bc3 Rc6 Kb2 Rb6 Qff5+ Ke2 Ka1 Rc6 Be1 Rb6 Ba8 Rc6 Qg6 Kf3 Qd3 Kg2 Qe2+ Kg1 Qd1 Rb6 Bg2 e2 Ng6 Rc6 f8Q Rb6 Nf7 Rc6 Qb8 Rd6 Qf4 Be5 Nf8 Rb6 Reh6 Rg6 Qa7 Bf6 Qe5 Qdf2 Qed4 Rg5 Bb2 Be5 Rhe6 Rg6 Qf4 Bc3 Qa5 Qd4 Qae5 Qe4 Ka2 Qd4 Ba1 Bb2 Qff6 Ba3 Bc3 Bc1 Ka1 Ne8 Qff4 Ng7 Qf2+
r1nQ1N2/1BN5/1qR4R/2Bp1R2/1Bn1QQK1/b2qQ2p/1kpP1rn1/3Nb3 b - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 d6 exf5 Ba6 a5 Bc8 a6 Bb7 axb7 Kf7 cxb5 Qd7 b6 Ke8 b5 Qd8 Ke2 Kd7 Kf3 a5 g4 c5 g5 h5 f6 Ke6 f7 Ke5 g6 Kd4 g7 e5 Qc2 a4 Na3 h3 Bg2 c4 Qe4+ Kc5 Ne2 Kb4 Nc3 h4 Kg4 Kb3 f4 h2 f5 Nc6 b8B Nge7 g8Q Nc8 b7 Na5 f6 Qb6 Ba7 h3 b8Q Be7 Qg5 Rf8 Rf1 h1N Qge3 Ng3 Rf5 Ne2 Qc7 Nf4 Qd8 Rh8 Bf3 Ng2 f8Q Rh7 Qfh6 Rf7 Qhf4 Rf8 f7 d5 Be2 Bc5 Bb2 Be7 Rc1 Bc5 Nab1 Bb4 Ba3 Be7 Bd6 a3 Bb4 a2 Na3 a1Q Bd3 Kb2 Be2 Qc7 b6 Qb1 b7 Qb6 b8R Qd3 Nab5 Bd6 Nc7 Bc5 N3b5 c3 Rb7 Nc4 Bf1 Qa6 Rb6 Qa5 Rh6 Qb6 Re1 c2 Nc3 Bd6 Ra1 Bc5 Ra6 Be7 Ba5 Ba3 Bb4 Qc5 Rac6 Qb6 Qe4f3 e4 Qfe2 Rh8 f8N Rh7 Q2f3 Rf7 Be2 Qa6 Bac5 Qb6 Qd4 e3 Q3e4 Rf6 Bf1 e2 Qde3 e1B Be2 Qd4 Bd3 N4d6 Ba6 Qd3 Rg5 Rf5 Bb7 Rf7 Qfg3 Rf2 Qgf4 Nc4 Re5 Ra6 Rf5 Ra8 Nd1+
6Rq/N1b2r1N/1B2r3/Q1p5/QprQRp2/1n2R3/nqBP1K2/1b1Q1NBk b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h4 Kd7 a4 g5 e4 c5 h6 f5 a5 b5 a6 f4 e6+ Kd6 a7 Ke5 d6 g4 h7 g3 e7 g2 e8Q+ Be6 h5 b3 h6 b4 d7 b2 Rh3 Qe7 d8B Bf7 Qea4 Nd7 Kf2 Kd4 e5 Ke4 e6 Ngf6 Ne2 g1R Na3 b1Q Bb6 Nd5 Bb2 Qd8 e7 Nc3 e8N Ba2 Nb5 Nb8 Rd3 Rhg8 h8Q Bd6 h7 R8g7 Rh3 Nc6 Re3+ Kf5 Bg2 Kg4 Be4 Rf7 Bc2 Nd4 Ng3+ Kh3 Nf6 Kh2 Nf1+ Kh1 Re4 Rb8 a8Q Bc7 Q8a5 Nb3 Na7 Rc8 Qg7 Qh8 Re3 Qc1 Re4 Bb1 Ra3 Na2 Bd4 Re8 Be3 Qg8 h8R+ Qh7 Rg8 Qh8 Nh7 Re6 Qd4 Qb2 Ke1 Rg3 Bg1 Rc3 Ke2 Rc4 Kf2 Na1 Rc3 Nb3 Rce3
3rN2n/BRNNn2r/2Q2R2/2pQK1b1/p2RPQB1/1BBk4/q3p3/1b1n1q2 b - - 0 1 illegal: No possible last move, all moves rejected
2Nn4/B1n1Q1Q1/b1R1Q1K1/1pR2p2/1PN4p/rRrBBN2/4q3/N1qrk1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 e5 c4 exf4 cxd5 Qd6 a5 Qb6 axb6 Bd6 Ra6 Be7 Ra1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b4 h5 g4 a5 d6 c5 g6 f6 g5 a4 d7 h4 Kf5 a3 d5 f3 d6 a2 b7 f2 g7 Ra3 e4+ Rd3 e5 Rh5 e6 Rh6 d8Q Na6 b8B Be7 g6 Rh7 d7 Rh6 Nd2+ Kc3 Rh3 c4 Ngf3 Re3 Nb3 Bb7 Qe1+ Kc2 Ba7 Rd3 Bce3 Bd6 e7 c3 e8N Nc7 Qe7 Bh2 d8R Rd1 Rd6 Ba6 Rc6 Bg1 Nd6 Rh8 Be2 f1Q Nc4 Rh7 Rb1 a1R Rg3 Rh5+ Rg5 Ra3 Qg3 Rh6 Qge5 Qf2 Q5e6 Qh2 Bf1 Qe2 Na1+ Kd3 Rb2 c2 Rb1 Rc3 Rb3 c1Q Kf4 Bc8 Rgc5 Ba6 Kg4 f5+ Kg5 Nf6 g8N Nd7 g7 Ne5 Rb6 Rh8 Rbc6 Nf7+ Kg6 Nd8 Qe8 Bc8 Ne7 Ba6 g8Q Rh7 Nc8 Rg7+ Kf6 Rg3 Qg7 Qb2 Q8e7 Qc1 Ra3 Rb3 Bh6 Kc3 Nfd2 Qf2 Bf4 Rd3 Nf3 Qg2 Ra2 Ra3 Rb2 Qf2 Rb1 Qa2 Be3 Qab2 Nb3 Kc2+ Kg6 Rc3 Bh3 Kd3 Na1 Ke2 Bg2 Qa2 Rb3 Qac2 Bg5+ Kf2 Bf1 Q2b2 Bd3 Qe2 Be3+ Kf1 Nfd2+ Ke1 Nf3+
KB1Bn1R1/2Qq1r1Q/2Br3b/P2p1p1k/Nrnq3R/8/1pQ3BN/3RNb2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 g5 Ke3 d5 Kd4 f5 h4 Kf7 a4 b5 e4 b3 c4 b4 e6+ Kg7 a5 Kh6 c6 b2 c5 b3 c7 Na6 c6 Qf6+ e5 Ne7 Nc3 b1Q Bf4 b2 Qc2 Ng6 e7 Nb8 Kc5 Qc1 Kb6 Qg7 e8N Qd2 e6 Qf7 e7 Be6 Kb7 Qh2 c8Q Rg8 c7 Qh3 Rd1 Qg7 Nf3 Qg4 Na4 Na6 Ne1 Qd4 Nf6 Bd7 e8B Bb5 Bg2 Ne5 Bc6 Rg7 Qd7 Qg3 c8R Nc4 Bb8 g4 Qc7 Qd6 Rh2 g3 Ng4+ Kh7 h6 Kg6 h7 Kh5 h8B Rf7 Rh3 Bh6 Nh2 Qe6 Bf6 Qd7 Bh1 g2 Rg8 g1R Bd8 Rg4 Bg2 Qc5 Rf3 Qd4 Rf4 Nb4 Re4 Ra6 Rf4 Rb6+ Ka7 Na6 Ka8 Nc5 Re4 Ne6 Rf4 Ng7 Re4 Be3 Rf4 Ne8 Re4 Kh6 h5 Rg6 Rf4 Rd6 Rh4 Ba6 Qf2 Rb4 Qc2 Kh7 h6 Bg5 Rf8 Kg6 h7 Bh6 h8Q Bb5 Rf4 Kh5 Qh7 Ne3 Rg4 Bf1 Rfg8 Nc4 Rh4+
6nn/BK1kN3/1Bn1Rp2/2Pr2pQ/B3pNR1/3RbB1b/1Q1q2qQ/4rN2 b - - 0 1 illegal: No proof kernel
1K4b1/B1r1q1R1/2Rp2Q1/B1N1QQ1N/q1N1nrNp/r1p1P3/8/R3kBbn b - - 0 1 illegal: No proof kernel
N1b4k/1N2N3/bppB3Q/1B3RPr/qq1R1pK1/1R1r3n/2QnB2b/4B1Q1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 f5 Kf3 Kf7 e4 Kg7 a4 h5 d4 b6 g4 f4 a5 b3 a6 h4 g6 b2 a7 h3 e6 h2 e7 Nf6 e8Q Nh7 e5 Nf6 d6 Nd5 e6 Rh7 e7 Nc6 d7 Ndb4 d5 Rb8 a8N Rh5 d6 Rf5 Ra5 Rg5 Be2 Rd5 Qc2 Nd3 Na3 b1Q Nb5 Kh8 g7+ Kh7 g8Q+ Kh6 Ba3 Bg7 Qef8 Qc1 e8B Qe7 d8R Qa1 d7 Rh5 Nd6 Nf2 Nb7 Nh3 Rf5 Na5 Bb4 Qc5 Be1 Qb4 Qd6+ Bf6 Qg5+ Kh7 Qd4 Qd1 Qh6+ Kg8 g5 Nc4 Kg4 Nd2 Nf3 Be5 Rf1 h1B Qg1 Bd4 Nh4 Bg2 Rf3 Bf1 Ng6 c6 Rb3 Qa1 Bb5 Qaa5 Qf8+ Kh7 Ne7 Qaa4 Bf7 Bf2 Bfc4 Bg3 Be2 Bh2 Re8 Qd4 d8B Qe4 Bc7 Qeb4 Nd6 Rb7 Rd8 Ra7 Bb8 Rd7 Nb7 Rd4 Qf6 Rd3 Qe6 Kg7 Rd4 Kh8 Bd6 Bg2 Na5 Ba6 Nb7 Bd5 Qf7 Be6 Qg6 Bc8 Qh6+
R1NNr1nB/4Qkq1/p2Rqr2/1n4RK/2b1RN2/P2B2p1/1B1Q1p2/1Qq4b b - - 0 1 illegal: No possible last move
N2Q4/1K2Pb2/N6Q/Q1B1rRRp/Bb1p1nN1/n1k1r1pq/R1n3B1/1N2q3 b - - 0 1 illegal: No proof kernel
r2n4/2p3q1/2bQ1r2/1NB2BRN/n3N1P1/bpR1q2p/1RQ2R2/2QK1nkB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 d4 b5 g4 h5 a4 e5 g6+ Kf6 g7 b3 a5 h4 d6 h3 a6 b2 d5 b4 a7 e4 d7 e3 d6 e2 Nd2 b1Q Ra2 b3 Rb2 Rh6 Ngf3 Ba6 Nd4 Rh8 Ne4+ Kf7 f6 Kg6 f5+ Kf7 Be3 Qc2 Qc1 Bb7 Nb5 Be7 Bc5 Nh6 g8R Qd3 Rg5 Qg8 d8Q Nc6 d7 Qg7 Qc8 Qf3 d8Q Rf8 Qd6 Nd8 Kd2 e1N Bd3 Qg3 Kd1 Qe3 Rf1 Bd5 Rff2 Bc6 Bc2 Nd3 Qa6 Nb4 Qa2 Nd5 Rf3 Nb6 Rg3 Qf4 Rc3 Qe3 Bb1 Na4 Bd3 Kg8 f7+ Kh7 f6 Nf5 Qab1 Kh6 Qbc2 Rh8 f8N Ng3 Ne6 Rf8 Nf4 Nf1 Nh5 Rf7 Qd4 Rf8 f7 Bd6 Bb6 Ba3 Qc5 Re8 f8R Re6 Rf2 Rf6 Re5 Kg6 Qd6 Kh6 Bc5 Kg6 Nd2+ Kh6 Bf5 Kg5 Bh7+ Kh4 Rg5 Rb8 a8B Rc8 Nf4 Kg3 Bb7 Ra8 Bf5 Bg2 Bd5 Kh2 Nh5+ Kg1 Bb7 Bc6 Ne4 Bd7 Nd2 Be8 Bh1 Bc6 Ne4
4N1R1/1p1R4/b2NQ3/2KB2Q1/B1pN1bn1/n2p2q1/qB3PRr/k1NQr1q1 b - - 0 1 illegal: No possible last move, all moves rejected
3r2q1/nrQR2B1/3N2k1/1rBpn1pR/3r2N1/pRbb4/KP4B1/QNQ4N b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 a5 h4 d5 c4 g5 Kc2 e5 Kb3 a4+ Ka2 e4 c5 d3 c6 d2 c7 e3 h6 e2 b6 e1R f6 Re7 h5 Bg4 c8N Bf3 f5 Ra6 b7 Bg4 h7 Qe8 h6 Be2 Bg2 Re4 Rh3 Ne7 Rb3 Bg7 Nd6+ Kf8 f7 Bc3 Nh3 Bf3 Nf2 Bb4 Nh1 Rg8 h8N Rh4 h7 Kg7 f8B+ Kf6 Nhf7 Ra5 h8R Be4 Nh6 Nd7 b8Q Bc3 Qc7 Ne5 Rh7 Nc8 Rd7 a3 Qf1 d1R Be3 Rh3 Bc5 Rd4 Qc1 Nc6 Bb6 Rb5 Bc5 Ke5 f6 N8a7 f7 Kf6 Ng4+ Kg6 Bh6 Ne5 f8Q Bd3 Bg7 Rh7 Qff1 Qa8 Qfe1 Rd8 Qc2 Rh4 Nd2 Rdb8 Ne3 R8b6 Nf2 Nc8 Neg4 Rh8 Rc1 Ba5 Qb1 Na7 Qa1 Bb4 Nb1 Bc3 Qe3 Rf8 Rh1 Rb7 Qc1 Qe8 Rh7 Qe6 Rh3 Rd8 Rh5 Qg8 Nh1
3R2nK/bR2R2p/BQ4Nn/2rp1N2/qr2bN2/r4Qp1/B3Q1PQ/2B1r2k b - - 0 1 illegal: No possible last move, all moves rejected
1RBQR1n1/1p1P3Q/3qnB2/r3N2p/1Q1N1p2/QKNR3B/1bn1r1k1/3bn3 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Ke7 d4 c5 Kd2 f5 Kc2 h5 a4 f4 e4 c4 a5 c3 d6+ Ke6 a6 Ra7 d7 Qa5 d8Q Nh6 d5+ Kf7 d6 Ke6 g6 Qc5 g7 Nc6 g8B+ Nf7 g5 Qd4 g6 Qd3+ Kb3 c2+ Nc3 Qe3 g7 Nb8 Rh3 Qd2 Bb2 Ra8 a7 Na6 Qb1 Be7 Nge2 Nc7 Rd3 Bf6 Bh7 Re8 g8Q Re7 Qg7 Nh6 Bh3+ Nf5 Bg6 Qd1 Qh7 c1N+ Kc4 b3 Ra2 Rb8 a8Q Qd2 Qa6 Ra8 Qa3 Ra5 Ba1 b2 Be8 Bg7 Bd7+ Kf7 e6+ Kf6 e5+ Kg5 Nd4 Kh4 Kb4 Nh6 Kc4 Bf6 Kb4 Re8 e7 Ng8 Bdg4 Bd7 e6 Ba4 Kc4 Bd1 Kb4 Rf8 e8N Rf7 e7 Ne6 Kc4 Rg7 Bf5 Rg2 Kb4 Bg7 Nf6 Re2 e8R Bh8 Ng4+ Bf6 Nf3+ Kg3 Nge5 Bg7 Nd4+ Kh2 Qc2 b1N Qca4 Kg1 Kc4 Kh1 Q4b4 Bh8 Rg3 Nd3 Re3 Ne1 Rd3 Nf8 Bc8 Ne6 Rc2 Kg1 Kb3 Bf6 Qaa4 Na3 d7 Nc4 Qaa3 Ne3 Ka2 Bg7 Rb2 N3c2 Kb3 Qe3 Ra2 Qe4 Qc1 Qc6 Ra4 Qd6 Qca3 Rd5 Ra7 Ra5 Ra8 Kf2 Rb8 Bf6 Bg4 Kg2 Bb2 Bh8 Bh3+ Kf2 Nf5 Nf6 Na2 Bg7 Nc4 Ng8 Bc3 Bd4 Ba1 Ba7 Bf6 Bd4 Ne5 Bb2 Nd4 Kg1 Nc3 Kh2 Bg4 Kg2 Bh3+
r1Q2B1B/pq1Q1QRK/2N4b/3b4/rp6/Prn5/kpR1Rn2/N2NBrR1 b - - 0 1 illegal: No proof kernel
n1QR2QB/1qq1R1N1/b1B2k2/1Q4pn/p2R2N1/8/PKp2rqN/3BbQb1 b - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 f5 gxf5 b5 h4 a5 c4 Ra6 h5 Rg6 hxg6 bxc4 Kd2 Ke7 Kc3 c5 f4 d5 e4 h5 b4 h4 f6+ Ke6 g7 h3 f7 h2 b5 d4+ Kb2 a4 b6 d3 b7 d2 f5+ Ke7 e6 Na6 b8Q Bb7 e5 Qd4+ Nc3 Rh7 Be2 Nb4 Qf1 d1Q Nf3 Qd8 Ne4 Rh6 Nf2 Q1d5 Bd1 Nf6 g8Q Nh5 Ng4 Ba6 Qb5 Qb7 Rb1 Bg7 f8R Qdc7 Rd8 Nd5 Be3 Rh7 Bd4 Nb6 Rg1 h1Q Nfh2 Qhd5 Rg3 Bh8 Rd3 Rf7 Bc3 Rf6 Rd4 Na8 Rc1 Qg2+ Rc2 Rf8 Re2 Bg7 R8d7+ Ke8 f6 Bh8 e7 Bg7 Qh8 Kf7 e6+ Kg6 f7 Bf6 Rf4 Bd4 e8N Be3 Rfd4 Bg1 Nf2 Kf5 Ng7+ Kf6 e7 Qgg3 Kc2 Qgg2 Bb2 c3 e8B c4 Qg8 Kg6 Rd8 Kf6 Kb1 c2+ Ka1 c1B Bc6 c3 Re7 c2 Nfg4+ Kg6 Bc3 Bd2 Kb2 Be1 R8d7 Rc8 f8Q Rd8 R7d5 Rd6 Qb8 Rf6 Qbc8 Rf2 Rd8 Qe5 Ne8+ Ng7 R4d7 Qec7 Be5 Kf5 Rd4+ Kg6 Qf8 Nh5 Bh8 Rd2 Ng7 Re2 Nh6 Rf2 Qg8 Kf6 N6g4+
K3R3/bB1pqBk1/R1pn2Nn/2q1p3/n1q2NBQ/B1r5/QQP1N2r/3R4 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 h4 g5 a4 gxh4 axb5 Ba6 b6 Be2 d5 Bh5 Nc3 Bf7 Nb1 Be6 dxe6 Be7 Nf3 Bd6 Ng1 Bf8 Kd2 h5 Kd3 a5 Kc4 a4 Kb5 h3 g4 a3 b4 h2 f4 a2 b7 h4 g5 h3 g6 Qf6 g7 c6+ Kb6 Ra7 b5 Bd6 e7 Kf7 e8B+ Ke7 Qe1 Bb4 Bh5 Ra8 Ne2 Qd6 f6+ Ke6 f5+ Kd5 f7 Na6 f8Q Nh6 g8B+ Qe6 b8Q Bc3 Kb7 Bd4 f6 Bf2 f7 Qe7 b6 Ke6 Ba3 Kf6 Nbc3 Be3 Rg1 h1N Nf4 h2 Nce2 Ng3 Bg4 h1Q Qfd8 Qe4 f8N Ngf5 N8g6 Bd4 Qb1 Kg7 Bf7 Qd5 Qa7 Qdc5 Qb2 Bf2 Rd1 a1Q Rg3 Qa2 Rb3 Qed6 Qh4 Qe7 Rb5 Qac4 Ra5 Raf8 Qa8 Nd6+ Ka7 Qe3 Ra4 Nc5 b7 Qed4 b8R Bg1 Ra6 Na4+ Rab6 Qdd5 Re8 Qdc5 Kb8 Rfg8 Qa5 Be3 Ka8 Rf8 Ra6 Bd4 Bg8 Rf5 Bf7 Rh5 Qh2 Rh3 Qh1 Rc3 Qh4 Q5b4 Qd5 Ba7 Qe6 Qcc5 Qea2 Qbc4 Qf6+ Kh7 Nc1 Qd3 Rb6 Nhf5 Bfe2 Qdd5 Ba6 Qdc4 Nce2 Kh6 Qg5+ Kg7 Bb7 Rh2 Qh4 Nh6 Ra6
2bb1Q2/1QrQ1RN1/1pN2B2/p4RbR/1n1K1N2/kP1Bp1Br/2bq2b1/5N2 b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Na6 a5 Nc5 a6 Nb7 axb7 Qd6 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 Kd3 Kd6 b8Q Kc5 g4 Kb4 f4 h5 b3 a5 g5 e5 g6 c5 g7 h3 d6 h4 d7 h2 f6 h3 f5 Qc7 d8N Qe7 f7 Nh6 g8R Ra7 f6 Ng4 Nc6+ Kb5 Rg5 Qc7 Qb7 Ne3 Ne2 Be7 f8N Bd8 f7 Nd5 Nf4 Qd6 Rf5 c4+ Ke4 Rh4 d4 Nb4 d5 Qh6 Ke3 e4 Bd3 Rh5 Rf1 h1B Nd2 h2 Kd4 Bg2 N8e6 h1B f8Q Rh3 Ng7 Qd6 Rf7 Qh6 d6 Qg5 Bb1 c3 d7 c2 Rf2 Qh6 Nf1 Qg5 Bd2 c1B Be1 Bd2 Rf3 Bc1 Bg3 Qh6 Nd3 Bcg5 Nf4 e3 Ra4 Qg6 Ra2 Qc2 Rf2 Be4 Rh2 Qc1 Raf2 Bc2 Qg4 Bg2 Rf3 Bc7 d8B Qe1 Bf6 Bd8 Qgd7 Qe2 Qb8 Rc7 Qa7 Nd3 Qb7 Qd2 Ne7+ Kb4 Rh1 Rh6 Rh5 Ka3 Nc6+ Nb4+ Kc4 Bd1 Bd3 Bc2 Kd4 Rg6 Rh8 Rh6 Rf2 Rh3 Rh5 Be7 Nd5 Bd8 Rf5 Qf2 Nf4 Qe2 Be1 Qd2 Bg3
br3R1k/2N3pp/b2BQ1B1/1BN2pb1/Q1R1Rb2/N3QrR1/b1q3nP/K7 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 axb5 e6 g5 Na6 d3 Nc7 d4 e5 fxe5 cxd4 Ra6 Nd5 Ra1 Ndf6 gxf6 Ba6 Kf2 Bb7 Ke1 Bc8 Kd2 Kf7 c4 d5 Kc2 a5 e4 a4 b4 a3 c5 a2 Kb2 d3 e6+ Kg6 b6 d4 c6 d2 e5 d3 b7 Ra5 b8Q Ne7 f7 Qd5 b5 Ng8 e7 Qg2 e8R Ra4 e6 Ba6 b6 Ra5 c7 Kf6 c8Q Re5 b7 Rc5 e7 Qe2 Qf4 Rc3 b8N Nh6 Qda4 Ng4 Nh3 Ne3 Na3 d1B+ Bd2 Qf2 Ng5 Bb3 Rc1 a1B+ Kb1 Bd5 Rg1 Ba8 Rg3 Ng2 Nd7+ Kg6 Be1 d2 Bb5 Rf3 Qe3 d1B Bb4 Bb3 Rc4 Be5 Bd6 Bf4 Ka1 Ba2 Nc5 Qc2 Nge6+ Kf6 Qd7 Rg8 Nc7 Rh8 Rc8 Rg8 e8B Be7 Rh3 Kg6 Rg3+ Beg5 f8R+ Kh6 Rf7 Kg6 Re7+ Kf6 Rd8 Rf8 Ree4 Rh8 Qc8 Rf8 Bec6 Kf7 Be8+ Kg8 Bg6 Kh8 Qe6 Re8 Rd7 Rg8 Rf7 Rb8 Rf8+
2R2qR1/Q2n1p1N/pp3rB1/Q1N2kNb/1P1K1nn1/2N5/3Q1RB1/nr1r2B1 b - - 0 1 illegal: No possible last move
k7/R2b2BK/q4rQp/1p1N1p1Q/1N1BR2P/p4nQN/1n1Br3/2n1b1NR b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 b4 c6 e3 Bd6 b6 Bc5 b5 Ne7 b7 Ng8 b6 Bf8 Bb5 cxb5 Kd2 d5 Kd3 Kd7 h4 Kc6 c4 a5 g4 a4 c5 f6 e4 d4 g6 h6 e6 Be7 g5 Qd6 g7 Na6 b8B Kb7 e5 Qc7 Ke4 d3 Kf5 d2 Kg6 f5 Nh3 Qd7 Qh5 d1N Nd2 Qd8 Ba7 Bf8 e7 Qd3 e8Q Nc3 e6 Rb8 c6+ Ka8 c7 Qc4 e7 Ne4 Nf3 Ngf6 g8Q Qe2 Bd2 Qd3 Nfg1 Be6 c8N Bd7 Qb3 Qd5 Qg3 Nb4 Qf7 Rb7 e8R Nc5 Re4 Ncd3 Ne7 Qd6 Nd5 Na2 Nb4 Ng4+ Qf6 Rg8+ Kh7 Nh2 g6 Nac1 g7 Nb2 Qfg6 Nf3 Ra2 Be7 Ra3 Rc8 g8N Re8 Nf6 Rf8 Nfd5 Rf6 Bb8 Qc6 Be5 Rb8 Ra1 Re8 Bd4 Qb7 Ra2 Qa6 Ra3 Re6 Bg7 Rf6 Ra1 Bc5 Ra2 Bf2 b7+ Ka7 b8B+ Ka8 Be5 Be1 Ra3 Re7 Bd4 Re8 Rc3 a3 Rc7 Re7 Rf4 Re3 Re4 Re2 Ra7+
2R1nrk1/n1QQQ3/npp3R1/1p1Qbb2/1BBpN2q/N2P2r1/2K1R3/1N1B4 b - - 0 1 legal: proof: g4 f5 e4 h5 gxh5 d6 exf5 b6 c4 Kd7 c5 Ke8 b4 a6 b5 axb5 c6 Bd7 Bh3 Qc8 Bf1 Qb7 cxb7 Bc8 f4 Kf7 a4 g5 Na3 e5 h4 d5 a5 g4 a6 e4 h6 e3 f6 e2 f5 g3 a7 g2 h5 Na6 b8Q Be7 h7 Bb7 h6 Bd6 Nf3 g1N Ra2 Bc8 Qb7 Rb8 a8B Kf8 f7 Ke7 f8R Nb4 f6+ Ke6 f7 Nf6 Rh4 Bd7 Re4+ Be5 Qb3 Rg8 h8Q Nh3 h7 Rg1 Qg7 Re8 h8N Re7 Rc8 Ng8 f8Q Re8 Nf7 Ne7 Nd6 Nec6 d3 Nf2 Bd2 Na6 Bb4 Ng4 Nd2 Na7 Ndb1 Rg2 Kd2 Nf6 Qh7 Rg6 Bg2 Rd8 Bf3 Rg7 Kc1 e1Q+ Bd1 Qh4 Rae2 Rg3 Kc2 Re8 Qfg7 Rf8 Qc4 Ne8 Qb8 Bc6 Qd7+ Kf6 R4e3 d4 Qhe7+ Kg6 Qc5 Bf6 Re6 Be4 Bd5 c6 Qbc7 Bf5 Bc4 Kh6 Qd5 Kg6 Nf7 Kh7 Ng5+ Kg8 Ne4 Be5 Rg6+
2b1q3/PN1Q2nR/R3rpRb/r5r1/BQR1p1pk/n1Bp3B/KQ1N4/1N6 b - - 0 1 illegal: No proof kernel
1qr2N2/1bPn1B2/4R3/KQ3pbN/p2kp1Qr/6Qp/R1NnqB2/N1R2B2 b - - 0 1 illegal: No proof kernel
1R4n1/bRpk3B/1Nb4r/p1q1B1p1/N2q2p1/2Q1QP1N/Q1KR4/1rRB3n b - - 0 1 illegal: No proof kernel
2N2q1r/2pPr3/2B3Rp/Q1pN4/n1n2bQ1/3k1BNb/1pR2B1N/1KR1Q1q1 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f5 hxg5 a4 exf5 a3 c5 d6 bxa3 dxc5 a4 Na6 a5 Nb8 f4 Kd7 a4 Kc6 g4 Kd5 d4 Ke4 Kd2 b5 Kc2 e5 a6 h6 f6 b4 d5 Be6 f5 Be7 f7 Bd6 f8Q Qc8 f6 Ne7 a7 Nbc6 f7 Nd8 g6 Rb8 a8Q Bf5 g7 Ng6 g8N Be7 a5 Nc6 a6 Bf6 g5 Rb5 a7 Bg4 d6 Ra5 d7 Rb5 Qe8 Rh7 f8N Bh3 Bg2+ Kf5 Ne2 e4 Ne6 e3 N6d4+ Kg4 Nbc3 b3+ Kb1 b2 Nf3 Kf5 Nh2 Re7 Bf3 Bg7 Ng3+ Ke5 Nd5 e2 Be3 e1Q Bf2 Nf4 g6 Ne2 Rg1 Rb4 Rg2 Qg1 Qe1 Bf6 g7 Bg5 Qh5 Rb8 Qg6 Bf4 Qg4 Re8 Nge7 Na5 g8R Nc4 Rg6 Rh8 Ra4 Qf8 Ra1 Re8 Nc8 Re7 Kc2 Qg8 Rc1 Qg7 Kb1 Qf8 Ne3 Kd4 Nd5+ Re3 Qc6 Kd3 a8B Re4 Qa6 Re7 Bc6 Qh1 Ka2 Qg1 Qaa5 Nc3+ Kb3 Na4 Ka2 Qf1 Kb1 Qh1 Bd4 Qf1 Rgc2 Qg1 Bf2
qq6/4B2p/1bR1R1NR/4pK2/q1pBPp1Q/n1n3N1/k1r1Q2Q/BB1b1N2 b - - 0 1 illegal: No possible last move
8/r1b1RbRq/k3nn2/p2p1BN1/Q1NP1pbB/R3p3/B2B1NQ1/1KQ2q2 b - - 0 1 illegal: No proof kernel
B1K2nN1/2p3B1/1Q2N3/5p2/N1q5/pbP2pqN/1QrQ3r/kBr1nRRR b - - 0 1 illegal: No possible last move
Nb3rRb/3p3p/Q1NBRkrN/1K6/2pQpB1R/1b1Q3P/8/3qnNbB b - - 0 1 illegal: No proof kernel
B1R1R3/R1b4K/1p2QBN1/1PRpr1pp/2pnN1p1/3N1b2/n2BQ1rk/4Q3 b - - 0 1 illegal: No proof kernel
Q1N5/1prQpR1Q/2R4p/B3p1p1/1nbN2R1/1P2pK2/B1B1n1N1/1Nb1k1r1 b - - 0 1 illegal: Other
2RrNr1N/1N3RNq/q2b3B/1Bk4K/4b1RQ/2BP2N1/N2n4/1bn2q1n b - - 0 1 illegal: No possible last move
b2n2BN/q3b1bK/k1N1R3/2R1nR1b/B1RPr1R1/3B4/nQ2N3/3R2rn b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Qd7 cxd5 Qd8 Ba3 Rb7 axb5 Ra7 b6 Ra6 b5 Ra8 Bb4 axb4 Ke2 Kd7 Kd3 c5 Ke4 e5 d4 h5 f4 c4 g4 b3 f6 b2 Kf5 e4 Kg6 e3 f5 c3 f7 c2 b7 Kc7 f6 Kb6 d6 c1N d7 e2 Qd2 e1B Nf3 h4 Ra6+ Kc7 b6+ Kc6 Ne5+ Kd6 Nc3 b1N Nc6 h3 Bd3 h2 Qb2 Ra7 Ne2 Bc3 Rd1 Be7 f8R h1B f7 Nf6 Rg8 Na3 f8R Nh5 Rf5 Qc7 d8N Na2 Nf7+ Kd7 Raa5 Ng3 Rac5 Rh4 Nh8 Bb4 Re8 Bf6 Re6 Bg7 Rc4 Be7 Rfc5 Na6 b8R N6b4 b7 Bd5 Ra8 Nh1 b8R Bb7 Rc8 Bf3 Rg8 Ra6 Rab8 Ba8 Rbf8 Qa7 Rff6 Kc7 Rff5 Bh6 Kh7 Kb6 g6 Bg7+ Rh5 Ra4 g5 Re4 Rf5 Ka6 Rfc5 Bh6 g7 Bg4 g6 Bf3 Rhe5 Bh5 Rf5 Ra5 Rgf8 Rb5 g8B Bg7 Bf7 Rb7 Be8 Rc7 Ne5+ Nc6 Rg8 Rb7 Bd7 Rb6 Be8 Nd8 Ba4 Rd6 Nc6 Rd5 Rf4 Rg5 Rgf8 Rg1 R8f5 Bd6 Rg4 Be7 Rc2+ Nc4 Rc3 Be5 g7 B5f6 g8B Bg7 Rb5 Ne5 Rc4 Nd7 Rbd5 Ne5 Rdc5
1qb3Bb/1RN5/1Rnr3p/1Pn2N2/2NrQB2/5R1q/b2NnB1k/KN1N4 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 g4 Kd7 f4 Kd6 d4 e5 Kd2 c5 Kc2 e4 Kb2 e3 f6 e2 g6 e1N f5 c4 g5 Ng2 g7 Qd7 g6 Ra6 f7 Qe6 f6 Rc6 Qg4 Qe5 Ra6 c3+ Ka1 c2 Nh3 Qe1 Rb6 Be7 f8N Qd2 f7 Nf4 Ne6 Nf6 f8R Ne2 g8N Ng3 g7 Bb7 Bc4 Nfe4 Nf6 Qg5 g8N Nh5 Nh6 Nhg3 Nf2 Qf5 Nd1 Nc5 Qg6 Bc8 Ne4+ Kd7 d6 Bf6 Be3 c1Q Bf2 Qcf4 Ned2 Ne2 Rh3 Q4e5 Rf3 Qh3 Qd3 Rg8 Nf5 h6 Bb3 Rh8 Qe4 Rh7 Bc4 Bh8 Rg8 Re7 Rg7 Qeg3 d5 b3 Nbc3 Ke8 Rf7 Rd7 Rh7 Rd8 Rhb7 Qgh2 d7+ Kf7 d6 Kg6 Bd5 Kh5 Bc4 Qf4 Bd5 Kg4 Bc4 Re8 d8N Re7 Bd5 Rd7 Nf7 Rd8 d7 b2+ Ka2 b1B+ Ka1 Ba2 N7d6 Bb3 N6c4 Ba2 Nc7 Rg6 Bg8 Nc6 Na8 Rf6 Ncb1 Re6+ Qe5 Rf6 Qe3 Qb8 Nc7 Re6+ Qd4+ Re4 Qe5 Rd4 Qe3 Rf8 d8B Rf6 Be7 Rfd6 Bg5 Qh5 Bg3 Kh3 Bf2+ Kh2 Qe4 Qh3 Bf4+
1n5b/Q2BNR2/n2N1P2/rrqB1B1R/qR4qN/7k/p4BB1/K1nq3B b - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 h5 b4 a5 c4 d5 Kc2 Kd7 Kb2 e5 c5 h4 b6 e4 c6+ Kd6 b7 Ke5 f6 a4 c7 e3 c8B Kf4 g7 Kg3 b5 e2 g6 e1N g5 d3 b6 h3 Na3 h2 Nf3 d4 Nc4 Qc7 Be3 d2 Nd6 Nc6 b8R d3 b7 Nge7 g8B Ra6 g7 Qa5 g6 Nb4 Bh7 Nec6 g8B a3+ Kb1 Qh5 g7 Qg4 Qa4 Ra8 Be4 Rh5 Bgh7 Rf5 g8B Bg7 Ra2 Bh8 Ka1 Rc5 Rc2 a2 Bhf5 Ra7 Rc4 Rd5 Ra8 Rb5 b8N Ra6 Qa5 Ra7 Qc7 Raa5 Bgd5 Na6 Qa7 d1Q+ Bc1 d2 Bcd7 Nd3 Rb4 Qa4 Bh3 Nce5 Nc6 d1Q Rf8 Qdc2 Be3 Nc1 Ne7 Nc6 Rf7 Qc5 Bg1 Ncb8 Bf2+ Kf4 Re1 h1Q Rf1 Qhg2 Rh1 Qf1 Rh2 Qh1 Bf1 Qhg1 Rh5 Qh1 Bh3 Qe1 Nh4 Qed1 Bg1 Kg3 Bh1 Nc7 B3g2 Nca6 Bf2+ Kh2 Bge4 Kh3 Beg2+
1Nb2BR1/1rp2QR1/Rn6/prP1K2b/1bb4R/2NB2B1/3RN1b1/1k1r3R b - - 0 1 illegal: No possible last move
bkNQB1Rb/6pp/1K2Npnq/2B3rR/8/P3R1N1/2B2B2/2Bbr1Bn b - - 0 1 illegal: Other
7n/r1R2N1p/3pRr2/2nRRbB1/B1NQrRR1/bk1p4/2r2B1P/1N4K1 b - - 0 1 legal: proof: f4 c5 e4 f5 exf5 e5 b4 b5 bxc5 b4 a4 b3 d4 exd4 g4 b2 g5 Nh6 f6 Qb6 f5 Qb5 axb5 Ng8 Na3 b1Q g6 Qb3 Nb1 Qf7 gxf7+ Kd8 Kf2 Kc7 c4 a5 b6+ Kc6 b7 g5 Ra4 g4 Nh3 d6 Ng5 g3+ Kg1 Na6 b8B g2 Ba7 Be7 f8R Bd7 f7 Nf6 Re8 Rg8 f8R Rb8 Nf7 Ne4 f6 Rg6 Bg5 Bf5 Qd2 Bd8 Re5 Bb6 Rfe8 Rc8 R8e6 Rh6 Rb4 a4 Bd3 a3 Bc2 a2 Ba4+ Kb7 Qf4 a1R c6+ Kc7 c5 d3 Rd5 Ba5 Rb5 Bb4 Qe3 Ba3 Qd4 Ra2 Ra5 Ra8 Rde5 Rc2 Bb6+ Kb8 c7+ Kb7 c8N Ra7 Rb5 Kc6 Rd5 Re7 Ba7 Rh4 Nb6 Rc7 Nc4 Rg4 Bb6 Ra7 Nh6 Rf4 f7 Rf3 f8R Rf4 Bh4 Ng5 Nf7 Re4 Bf2 Rf4 Bd8 Re4 Nh8 Nf7 Bg5 Ne5 Rg8 Ng6 Nf7 Nh8 Ra5+ Kc7 c6 Nc5 Nce5 Kb6 c7 Ree2 c8R Re4 Rb5+ Ka6 Rb4 Ka5 Rc7 Rf4 Rb6 Rg4 Rbc6 Re4 Nc4+ Kb4 Ra6 Nb3 Raa5 Nc5 Be8 Kb3 Rde5 Na4 Rad5 Nc5 Ba4+ Ka2 Bfh4 Bc1 Bh6 Nb3 Rg4 Ba3 B6g5 Nc5 Be1 Bg6 Bg3 Rc3 Kf2 g1R B3h4 Rf1+ Kg2 Rf6 Rf1 Bf5 Rff4 Rc1 Bf2 Rc2 Be8 Kb3 Kg1 Ka2 Bb5 Kb3 Ba4+
1N4N1/B3pKpB/1pQPr3/2b3Rk/1N1pRBN1/2r2R2/3n2Nq/3Nr2b b - - 0 1 illegal: No proof kernel forced: wxDB
3q2Bq/5Q1n/5qP1/1K3NR1/1NBr1Rr1/b1qN1bnR/2NB2k1/nN2bN2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 Ke2 Kd6 Kd3 Ke5 Kc4 c5 d4+ Kd6 g4 f5 b4 a5 g6 h5 e5+ Kc7 g7 a4 e6 Kd6 b6 h4 b5 h3 e7 f3 g5 f2 g6 a3 b7 f4 b6 h2 Ne2 a2 Bd2 f3 Ng3 Nd7 b8N Bb7 Qb3 Rh4 Nc6 Rg4 Kb5 c4 Ne5 c3 Nd3 Nh6 g8B c2 e8R c1B Re4 Ra6 Rf4 Ra4 Be2 Bg7 Nf1 Nf5 Qc4 Ba8 b7 Ng3 b8N Nf6 Nc6 Nh7 Ncb4 Ba3 Nc2 Bb7 Rg1 h1Q Rg2 Qhh4 Rh2 Qh5 Rh3 Bf6 Qb3 Bh4 Qc4 Qe5 Qb3 Qh8 Qc4 Kd7 d6 Be4 d5 Qc3 Nfe3 f1Q Qb3 Qf2 Nf1 Qfd4 Qc4 f2 Qb3 Ke8 d7+ Ke7 Qc4 Kd6 Qb3 Q8f6 d8N Qh8 Ne6 Bf3 Ng7 Qf6 Qc4 Qd8 Qb3 Rd4 Nf5+ Kc7 d6+ Kb7 Nh2 f1Q d7 Kc7 Qf7 Qf2 Ne7 Kd6 Nf1 Qa8 Ndb4 Ke5 d8N Qb8+ Nb7 Qd8 Rf5+ Ke4 Rg5 Bh1 Bc4 Qff6 Nc5+ Kf3 Nf5 Kf2 Nh6 Bf3 Nf5 Kg2 Ncd3 Bc1 Nba3 Bb2 Re1 a1N Nb1 Ba3 Re5 Nh5 Re8 Be1 Re4 Ng3 Rf4
nB3r2/N2Rrnb1/NrQB1P1N/2Kb2nk/2bR1Nq1/1BN1N3/6R1/4qn2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 e5 b4 h5 d4 a5 g4 c5 f4 h3 b6 c4 b7 a4 d6 h2 f6 Kg6 f5+ Kh6 f7 a3 f6 e4 d5 h4 Kd4+ e3 g5+ Kg6 b5 e2 d7 e1N d6 h3 b6 a2 Ba3 c3 Nf3 c2 Qc1 Qe8 d8R Bf5 d7 Be6 Rg1 h1R Nh4+ Kh5 g6 h2 g7 Nh6 g8N Na6 b8N Nc7 b7 Bg7 f8N Bc4 Rg2 Qg6 Bd6 Nf3+ Kc5 Ra7 Nf5 Ng5 Ne3 Na8 Nc3 Nhf7 Ne6 Ra6 Nh6 Rf8 Rb1 a1Q Rb4 Rb6 Na6 Qb1 Bd3 Re1 b8B h1B Be4 Qf5+ Bd5 Qg4 Ra4 Bb3 Rd4 Bc4 Qd1 c1N Qa4 Ne2 Qc6 Ng3 Nf4+ Kh4 Be6 Nf1 Bd5 Bd3 Bb3 Bc4 Rc8 Qa1 d8N Re2 Rc7 Qe1 Rg1 Bhd5 Rg2 Qh3 Rd7 Qg4 Ned1 Re7 Ne3 Nh8 Qc7 Nhf7 Nc6 Nd8 Na7 Ndf7 Nfe2 Kh5 Qb7 Rd8 Qc6 Rf8 Nf4+
3Bq2R/1Rbb3N/2B1nKBb/1N1NQP1b/2k3B1/1n1b3r/Bb2BR2/1r5n b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Ke6 Kd4 d5 g4 a5 c4 h5 f4 e3 b4 e2 c6 e1N b6 a4 g6 a3 c5 h4 c7 h3 b5 h2 c6 a2 g7 Ra3 b7 Nd7 b8N Re3 b6 Rh6 g5 Ng2 b7 Reh3 g6 Ngf6 g8B+ Kd6 g7 Nc5 Bf7 Nh5 g8B Qe8 Na6 Bd7 b8R Ng3 c8B e6 c7 e5+ Kc3 e4 Kd4 e3 Nc3 e2 Rb7 e1B Bg6 Kc6 Nb5 Ba5 Qe2 Bb6 Rb1 a1B+ Rb2 Rh7 Qe5 Bh6 Be2 Nb3+ Kc3 Rg7 Nb4+ Kc5 Nf3 Rf7 Kd3 Rf6 Ra2 Bb2 Ng5 Ba5 Nh7 Rb6 Qe4 d4 Nd5 Bd2 Qe5 Ba5 Re1 Nh1+ Ke4 d3 Be6 d2 Kf5 d1B Kf6 Nf2 Rh1 Bc2 Bd2 Bd3 Bb4+ Kc4 Be7 Bac3 Bd8 Ba5 Nd4 Rb4 Nb5 Bb6 B6g4 Ba5 f5 Nf4 Re1 Ne6 Rh1 Bc6 Bd7 Bb6 c8B Bc7 Rf1 h1B Ra8 Bf3 Rab8 Nh1 Rf2 Ra4 Ra8 Ra1 Rab8 Rb1 Ra8 Qg8 Bde8 Qf8+ Bef7 Be8 Bd7 Qg8 Bc6 Bd7 Rc8 Qe8 Bg8 Nbd4 Nf4 Kb3 B8f7 Qg8 B4h5 Kb4 Be7+ Nc5 Bb3 Ne6 Ba2 Bg4 Re8 Bf3 Bd8 Nb3 Nd5+ Kc4 Re7 Qh8+ Rg7 Qe8 Rg8 Bg4 Rh8 Bf3 Bg4 Rg3 Bh3 Bh5 Bhg4 Re3 Ndc3 Rh3 Nd5
1r2rN2/P1QR1N2/kB2n2K/1b5B/6Bb/RR3n2/1q2RNRn/1rRr1r1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 h5 Kf4 c5 d4 Kc7 a4 Kb6 g4 b3 d6 e6 g6 c4 g7 b2 g5 c3 f6 c2 d5 h4 a5+ Ka7 d7 b5 f7 b4 d6 h3 g6 h2 a6 b3 Be2 Rh5 Ra3 Rh3 Nd2 b1R Nc4 b2 Bd2 c1N Ne5 Rg3 Ba5 Rb3 Nh3 Qe7 d8R Bd7 Bh5 Nf6 Kg5 Ra1 g8B Rb4 f4 Ne2 g7 Nd4 f5 Nf3+ Kh6 Nc6 Qc2 Ncd4 Re8 Rg1 Qc1 b1R Nf2 Rc8 Qc2 Rbb8 Qc3 Ba4 d7 Qb4 d8R Be7 Bh7 Qb6 g8R Qb2 Rg2 Rge1 Rhg1 h1R Rd5 Rd8 Bg8 Re2 Rc1 Rd2 Rb5 Rdd1 Rbb3 Bb5 f8R Rdf1 Rf7 Ng4+ Kg6 Rd6 f6 Ngh2 Kh6 Rd7 Rfg7 Bd8 f7 Bh4 f8N Re7 Neg4 e5 Be6 e4 Ne5 e3 Beg4 e2 Qc8 e1R Qc7+ Ka8 a7 Rd1 Nc6 Ree1 Nd8 Re5 Ree7 Re3 Rd7 Re8 Rg5 Ne6 Re5 Rhg1 Re2 Rh1 Qc4 Nc7 Nf7 Kb7 Qc5 Ka6 Qc3 Ne6 Qc4 Nf4 Qc7 Ne6 Bb6+
4q2b/7B/qR1Br3/RNpPrnkb/4n1B1/NN1b2nK/R3N3/Nr2QN2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kf6 Kf2 e5 d4 h5 g4 c5 Kg2 a5 d6 a4 g5+ Kf7 d5 e4 d7 a3 g6+ Kf6 b6 a2 b5 e3 g7 e2 b7 e1N+ Kh3 Nc6 b8R Rh6 b6 Ra6 b7 Nd4 Nf3 Ra4 Na3 Ne2 Nd2 Nc3 Be2 Nf3 Nf1 Qc7 d8N Ne1 Nf7 Qe5 Bg4 Rc4 Nd6 Ne2 Ndb5 Nc2 Qe1 Qe8 Rh2 Ng3 Bd2 Bd7 Ba5 Bd6 Bc7 Be5 Bd6 Nd4 Rb2 Ra4 Ra8 Be6 b8N Bf7 Na6 Rc4 Rab1 a1Q Nb4 Rc3 Ra5 Re3 Ra2 Re4 Kh2 h3 Nbc2 h4 Rb3 Bh5 Rbb2 Ne7 g8B Nde2 Bh7 Nc3 Rb3 Bd4 Rb1 Re5 Rbb2 Qd1 Na1 Nce4 Rb1 Qd3 Rb4 Kg7 f6+ Kf7 f5 Qc4 Nc7 Qa6 Rb6 Bc3 Ncb5 Bb2 Kg1 h2+ Kg2 h1B+ Kh3 Bf3 Ra4 Be2 Ra5 Kf8 f7 Kg7 f8N Kf6 Ng6 Kg5 f6 Bd3 f7 Nef5 Nf4 Rhe6 f8N Bd4 Kh2 h3 Ne2 Bc3 Ned4 Bb2 Ndb3 Bc3 Ng6 Bb2 Kg1 h2+ Kg2 h1R Nf4 Rg1+ Kh3 Bc3 Nh2 Rh1 Qf2 Rb1 Nf1 Re7 Qe1 R5e6 Ne2 Bh8 Rb2 Re5 Rc2 R7e6 Ra2
rrRB3r/5nbq/1Q2qn1p/4R3/4BK1B/NBB1RN2/2b1Pk2/qB2nN2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 g4 Kc5 b4+ Kd4 g6 c5 g7 a5 g5 f5 b6 h6 g6 c4 b7 c3 d6 a4 d7 a3 b5 a2 b6 c2 Bg2 Ra4 Rh5 Qg5 Bb2+ Kd5 d4 c1R Qb3+ Rcc4 Nd2 Nc6 b8N Qe7 b7 Qe8 Na6 Nf6 b8R Nd8 g8B+ Qf7 Rc1 a1N g7 Nc2 Bh7 Ra5 Qe3 Rb4 g8B Rb7 Ra1 Bg7 Ra3 Rb4 Ba1 Bb7 Rc8 Ne1+ Kf2+ f3 Kg3 Ba8 Rg5 Rb8 Nc7+ Kc6 Bb2 Qa2 Bc4 Nf7 d5+ Kd6 Rh5 f2 Qb6+ Bc6 Rc3 Ke5 d6 Be4 Nb5 Raa8 Na3 Qa1 Ba2 Bd3 Bb1 f1Q Bd5 Bc2 Bb3 Qf2+ Kh3 Kf4 Re3 Qf1+ Kh4 Qg2 Bc3 Qd5 Kh3 Qc6 Kh2 Kg4 Bg6 f4 Be4 Qc4 Re5 Qe6 Bh7 Nh5 Be4 Kh4 d8B+ Kg4 Bh4 Nf6 d7 f3 d8B f2 Ba4 f1Q Bb3 Qff5 Nf1 Qg6 Nf3 Qh7 Kg1 Kf4 Kf2 Kg4 Rd3 Kh3 Ke3 Kg2 Kf4 Qb2 Re3 Qa1 Bg5 Kf2 Bh4+
2qNrN2/P1BB3b/4qR2/B5pr/nQbKR2N/b2N1N1n/2qN4/nR3k2 b - - 0 1 illegal: No possible last move
Kb2Q1RN/RnrN4/8/n1N1n2k/1B2Nb1B/4pb2/1PBNr1nn/2Nq3R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 a5 Ke4 h5 f4 c5 g4 e5 d4 c4 f6 Kg6 f7 h3 b6 h4 b7 c3 d6 h2 Kd5 e4 d7 a4 g5 c2 Bd2 c1B Ne2 h3 f5+ Kh5 g6 a3 g7 a2 f6 Na6 Kc6 Ra7 b8N Nc5 d5 Nb7 d6 Nh6 g8R Ng4 Qe1 Ne3 Na6 Ng2 Bb4 Bf4 Nd2 Bg7 f8N e3 f7 Rh7 Qc1 Bge5 Ne6 Rh6 f8N Rh8 Rb1 a1N Nec5 Nb3 Ra1 Rh6 Nce4 N3a5+ Kd5 Rg6 Qc6 Rg4 Nac5 Rg6 Rg1 h1N Nc1 h2 Bd3 Nf2 Bc2 Nd3 Rh1 Rg3 Qa4 Rf3 Ra3 Rf2 Qb5 Re2 Qa4 Qe7 d8N Bg4 d7 Bf3 Nf7 Bb8 d8B Ne5 Nfd7 Qe8 Bh4 Qd8 Re1 h1N Nh8 Nf2 Rh1 Nfg4 Qc6 Nh2 Qc8 Qg5 Qe8+ Qg6 Ra4 Nf7 Ra3 Qg3 Ra4 Qe1 Ra3 Qd1 Ra1 Nb3 Kc6 N3a5+ Kb6 Nd8 Ra4 Rc7 Ra3 Ndb7 Ra2 Nc6 Ra7 Nca5 Ra8 Rc8 Ra6 Bbc7+ Ka7 Bb8+ Ka8 Rc7 Qd8 Ne5 Ra7 Bh6 Qe7 Bf4 Qe8+
R2KB2B/2nBN3/q1b2RBn/rbrB2n1/1k3b1B/4pN2/1Q2n1P1/R1r2N2 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 h5 Ke3 d5 Kf4 Kd7 Ke5 a5 f4 e3 b4 d4 c4 e6 c6+ Ke7 c5 h4 c7 d3 f5 h3 g6 d2 b6 a4 c6 a3 g7 h2 b5 a2 b7 e2 f6+ Ke8 b6 e1R+ Qe2 d1B f7+ Ke7 Nd2 Qd3 Bb2 Nh6 g8B Bd7 c8B Qa6 c7 Bb5 Bd7 Bda4 c8B Rc1 Be8 Bc6 Bc3 Bab5 Ngf3 Ra7 Rg1 h1N Bcd7 Ng3 Qf2 Rh7 Bd3 Ne4 Nf1 Ng5 Bg6 Ra8 Qb2 Bg7+ Kf4 Kd6 f8R Kc5 Rf6 Bf8 Ke5 Re7 Bc8 Rc7 Bcd7 Kc4 Rh1 Bc5 Rh5 Be3 Kd6 Bf4+ Ke7 Kc5 Rh3 e5 Bd5 e4 Kd8 e3 Be1 Ra7 Bh4 Ra8 Rb1 a1N Rh1 Nc2 Ra1 Qa4 Ra3 Na6+ b8N Qa5 b7 Nd4 Rg1 Ne2 Ra2 Ba4 Ra1 Ra7 Ra2 Bcb5 Nc6 Qb6 b8B Rc8+ Ke7 Nc7 Rh1 Ra5 Ra3 Na6 Be5 Nc7 Ra1 Qa6 Ra2 Ra8 Bc3 Ra7 Kd8 Rb7 Ne7 Bc6 Rf5 Bab5 Bh8 Ra7 Rf6 Rb7 Qe5 Kb4 Rg1 Ra7 Ra1 Rb7 Qb2+ Kc5 Ng8 Bd3 Nd4 Rc2 Bge4 Ra3 Nd2 Rb5 Raf1 Qb6 B4g6 Qa7 Ne7 Bc4 Qa2 Kb4 N4f3 Rc5 Rc1 B4b5 Qb2+ Rb3 Rge1 Qb7 Nf1 Qb6 Qa2 Ra3 Red1 R2c4 Rd3 Ra7 Ra1 Rc1 Qc2 Ra2 Ra3 Qb7 Ra8 Ra5 Qa2 Qa6 Qb2#
4qB1q/b1nR1NnB/n1pBRPNN/6r1/2QB2BK/6n1/2n1R2k/Bb4r1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 Kf2 Kd6 g4 h5 b4 e5 d4 a5 g5 a4 g6 h3 Kg3 e4 g7 c6 b6 a3 b5 a2 b7 h2 b6 e3 Ne2 Ra6 Bh3 Be7 Qd3 Nd7 b8B+ Qc7 b7 Ra3 Nbc3 Ra4 Re1 h1Q Bb2 Ngf6 g8B Ne8 Ba7 Qd8 Nd1 Ndf6 Nf2 Ra5 Ng4 Nc7 Qc4 Nfe8 Rad1 a1N Rd2 Nb3 Ba1 Nc5 b8B Na6 Rc2 Ng7 Ra2 Rh6 Rd2 Qe4 Bh7 Qh8 Rb2 Re6 Nh6 h4+ Kg4 Rf6 Kg5 Bf8 Bg4 h3 Kh4 h2 Rd2 h1N Ra2 Kd7 d6 Nb5 d5 Qe8 B7d4 Be7 Bc7 Bd8 Bb8 Bb6 Rd2 Ba7 Rc2 Kd8 d7 Ke7 d8N Kd7 Bbe5 Nbc7 d6 Re6 f6 Rb5 f7 Rd5 f5 Rg6 Bf3 Rg1 f8B Ra5 Nf4 e2 f6 Rc5 Be3 Rb5 Rec1 e1N Ng6 Rd5 Ndf7 Ke6 B3d4 Bd7 Ng8 Kf5 Bg4+ Ke4 Rb1 Bf5 d7 Ng3 d8R Ra5 Bed6 Rc5 Bh3 Kf3 Ngh6 Be4 Rd2 Rg5 Rd7 Bc2 Rb5 Bb1 Re5 Nc2 Rh2 Rf1 Rhe2 Rg1 R2e3+ Kf2 Bg4 Kg2 Re6 Kh2 Re2+
1N1RbRq1/1R2bPN1/7r/B3KB1b/2bRn1pb/R1q5/5r1R/N3QnBk b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 Kf4 d5 c4 a5 b4 g6 h4 d3 b6 d2 c5 a4 h6 d4 c6 d3 h7 a3 b5 e6 b7 a2 b6 Bc5 c7 Bd4 h5 Nc6 b8N Ra3 h6 Rb3 b7 Bc5 Bh3 Nd4 Rh2 Bd7 c8R Be8 Qe1 d1B Rg2 d2 Na3 Bh5 Ne2 d1B Bd2 Rb2 Nc2 Nf3 Ng3 Be7 Rc4 Be2 Rd4 Bc4 Ba5 e5+ Ke4 Kg5 f6 Kh4 f7 g5 f8R Qc8 Bf5 Nh2 f3 g4 f4 Bcb5 Kd5 e4 Ke5 Kh3 Qe3 Bec6 Qe1 e3 Rfd8 e2 Rf8 Bg6 Nh5 Bc4 Ng7 Bh5 Rfd8 Nf6 Rf8 Rg8 h8R Ne4 h7 Nf1 Rfd8 Re8 Rf8 Ba4 h8R Bd7 Rb1 a1Q Rh6 Ra2 Ra6 Qc3 Na1 Rb2 Ra7 Rb6 Rb3 Rh6 Ra3 Ba4 Bg6 Bc6 f5 Bd7 f6 Ba4 Qd1 e1B f7 B1h4 Qe1 Bab5 Bf5 Bd7 Rg3+ Kh2 Rg2+ Kh1 Na6 Bhg5 b8B Bh4 Rb7 Bdb5 Ba7 Qb8+ Rd6 Rc8 Bc5 Be8 Bcb6 Qa8 Rd8 Rcc6 Nb8 Rcf6 Bg6 Rf2 Bf5 Qc2 Bd2 Qc3 Be3 Rd2 Bg1 Rf2 Bc7 Qa6 Ba5 Qg6 Bb4 Qh7 Ba5 Qg8 Rh2+
b1nRNK2/PBB2pr1/qnRr1N2/B1nn3Q/Rq5R/1Nbk4/4R3/1R5n b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 g5 Kd4 b5 h4 b3 a4 g4 e4 g3 a5 g2 e6+ Kd6 e5+ Ke7 Kc5 b2 d4 b4 h6 b3 h5 c6 h7 Nf6 d6+ Ke8 d5 Ra6 h6 Ng8 e7 Kd7 e8R Ne7 Nf3 g1N Nh2 Nh3 Ra4 Bb7 Ng4 Bg7 Bf4 Qc8 Nd2 b1N Bg2 b2 Nb3 Rg8 h8R Ba8 h7 Nf2 Rh4 Rb6 a6 Nc3 a7 b1Q Qh1 Qa6 Bd2 Na2 Ba5 Nc8 Re6 Nb4 Nf6+ Kd8 d7 Kc7 Qd1 Nh1 d8B+ Kb7 d6 Nd5 Qh5 Nd7+ Kd4 Qe1 Bc7 Qc3+ Ke4 c5 Kf5 Kc6 Re7 Kb5 e6 c4 Bf3 Nf4 Bb7 Nd5 Re8 Qd2 e7 c3 Rhc4 c2 Rc6 Qb4 Kg5 Nb8 d7 c1N d8R Nd3 Kf5 Nc5 Kg5 Ne3 Rd1 Kc4 Rb1 Kd3 Rd8+ Nbd7 e8N Rf8 Rg8 Bh8 Kh6 Nd5 Rg2 Rg8 Re2 Rg5 Ng8 Ba1 h8R Bc3 Ngf6 Rg4 Rg8 Rg1 Rg4 Rg3 Kg7 Rg2 Rce6 Rd6 Kg8 N7b6 Kf8 Rg3 Rge4 Rg7 Rh4 Rd7 Rc6 Rd6 Re6 Rh7 Ree1 Rg7 Re2
b3R1q1/1qNQ1bn1/1R2RbkN/1KRBP1n1/1b2N3/6p1/r3BBq1/R2R3r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 e4 f5 Ke2 Kf7 Kd3 c5 Kc4 g5 h4 a5 b4 a4 d4 a3 b6 f4 d6 a2 d7 g3 h5 g4 e6+ Kg7 b5 g2 d5 g3 e7 f3 e8B f2 d6 Qe7 d8N Qa7 b7 Bd7 h6+ Kh7 e5 Na6 b8R Nf6 b6 Nh5 b7 Rg8 Bf7 Be8 d7 Rh8 Kb5 c4 Na3 c3 Nf3 g1Q Nd2 c2 Be2 f1B Ne4 Qg2 Bd5 Ng7 Be3 c1B Nf7 Nc5 Rc8 Kg6 b8R Nce6 h7 Ng5 Nh6 Bf7 d8R Bb4 Re8 Qb7+ Bb6 Ra7 Rc5 Be3 Qd3 Bed2 Rd1 a1Q Re7 Qa2 Ra1 Rc8 h8R Bc1 Rhe8 Qb3 Nc2 Ra2 Nd4 Rd8 Ne6 Rd6 Bf3 Be2 Bg4 Bf3 Nc7 Rf6 Rd1 Rf4 Bge6 Rh4 Bg4 Rh1 Qd4 N5e6 Qd3 Bg5 Qd4 Bf6 Qd2 Ng5 Re6 Qc8 Ba7 Qd8 Rbb6 Qe7 Ba8 Qf8 Qd7 Qg8 Bd5 Qbb2 Nf2 Be4 Be2 Qb1 Bdc4 Ba8 Ne4 Qb2 Bd5 Qd4 Bdc4 Qd5 Bb3 Qb7 Bbc4 Re1 Bd5 Rh1 Rc3 Qc8 Rbd6 Nf3 Bf2 Qb7+ Rb6 Ng5 Rc5
kb2Br2/1nRRb2B/1B2P1r1/1b1QR1RK/1q1n4/n4R1N/1n3p2/2qR2NN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 d4 a5 b4 f5 g4 c5 e4 Kc7 d6+ Kb7 d7 h4 d5 a4 g6 h3 d6 h2 b6 c4 b5 c3 g7 a3 e5 a2 e6 c2 g5 Rh4 g6 Rg4 Nc3 Ra5 Qd5+ Nc6 Nce2 Qg5 d8N+ Ka8 d7 Qh4 Be3 c1N Nf7 Be7 d8R Nd3 Re1 a1B Rd7 Nb2 Ng5 Nf6 g8B Ba6 g7 Ne8 N5h3 Nd6 Bh7 Rg6 Ng3 Nb7 Bf2 Ra4 Re5 Re4 Bd3 Re1 Bc2 Rf1 Ba4 Qg4+ Kg2 Nd4 g8R+ Bf8 Rgg7 Bd6 Rgf7 Bb8 Rc7 Qh4 Rfd7 Qe7 Be3 Qb4 Bf2 Nc2 Kf3 Na3 Ke2 f3+ Ke3 Qe1+ Kf4 Qb4+ Bd4 f2 Kf3 f4 Be3 Rf6 Kg4 f3+ Kh5 Rc1 Rg5 f1N Bd4 f2 Be3 Rc6 Re5 Nc5 b7+ Ka7 Rg5 Qc4 Nf3 Nd2 Rd8 Nb3 Qd6 Rg6 Qe5 Nd1 Re7 Bd6 b8R+ Bb7 Rg1 h1Q b6+ Ka6 Rbc8 Qb4 Rf7 Be7 Rd4 Ba8 b7 Ka7 b8R Rb6 Rff8 Bc6 Ra8+ Kb7 Ra5 Ra6 Rff5 Ra8 Re1 Qg1 Nh1 Bd7 Rc6 Rf8 Bb5 Qf1 Nfg1 Bc3 Rf7 Nb2 Rf3 Qfc4 Rd5 Qf1 Qf5 Be5 Rc1 Qfc4 Rcd1 Bb8 Rc8 Qc1 Rc7+ Kb6 R5d4 Nb7 Qd3 Be8 Ba4 Bc6 Rae5 Ka7 Rd8+ Ka8 Bb6 Be8 Qd5 Nd4 Rd6 Bb5 Rd8 Bd3 Be8 Bb5 Rdd7
KN2rN2/p1R1b1n1/1q1NnB2/3R3B/4bB1n/rNrP4/N4r2/R1NQ1k1q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 e5 b4+ Kd6 f4 h5 b6 c5 b7 h3 d3 c4 f6 c3 b5 Kc5 g5 c2 f5 h4 d6 h2 f7 h3 d7 Bd6 f8N Qf6 d8B Rh4+ Bf4 c1R g6 Kb4 Kd5 e4 b6 e3 g7 e2 Nd7 e1N Be2 Be7 Bh5 Rc3 Ne2 Ng2 Nc1 Na6 b8N Nc5 b7 Qb6 f6 Nh6 g8N Nf5 f7 Ne6 f8N Nfg7 Nh6 Ra3 Rg1 h1R Nc5 h2 Nf7 Rc3 Re1 Rf1 Re5 h1Q Nd6 Rf2 Rf5 Ra3 N5b3 Rh2 Nc3 Nh4+ Ke5 Bd7 Rf7 Bc6 N3a2+ Ka4 Rf5 Be4 Rf7 Rc2 Rf5 Rhf2 Rf7 Bg5 Bf6 Rc6 Rc7 Rc3 Nc6 Re8 b8R Rd2 Rd8 Rf2 Nf7 Kb5 Kd6 Ka4 Kd7 Kb5 Kc8 Ka4 Bd4 Be7 Bf6 Kb5 Nd2 Kc5 Nd6 Qa6+ Kb8 Qb5+ Ka8 Qb6 Bg3 Kd5 Ne5 Kd4+ Nc6+ Ke3 Ndb3 Rfc2 Bf4+ Kf2 Nb7 Re2 Nb8 Kg2 Rd5 Rf2 Qd2 Kg1 Nd6 Kf1 Qd1+
qr1N1N2/1q5b/B1qNn1q1/B2B2n1/2rNp1Nr/6N1/4P1k1/KRRQq2R b - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 cxd5 Bh6 axb5 fxg4 Rh3 g3 Rh2 g4 Rh1 Bg5 hxg5 Be6 Na3 Bf5 Nb1 Bc8 d4 Kd7 Kd2 Kd6 Kc2 e5 f4 c5 b4 a5 Kb2 h5 f5 h4 b6 h3 b7 c4 f6 g2 f7 g3 f8N a4 b5 h2 b6 Rh4 g6 Nf6 g7 Qc7 g8B Nc6 b8N Nh7 b7 Ng5 Nd2 Bf5 Nh3 g1Q Nf2 g2 Ng4 Nd8 Nc6 Nde6 b8R a3+ Ka2 c3 Rbb1 Qb7 Ne4+ Kc7 Bh7 c2 Bd2 c1R Ng3 Kd6 Ba5 Rc4 Rc1 Re8 Rab1 Rb8 Ka1 a2 Bg6 Qf2 Bf7 g1Q Bg2 Bc2 Bg6 Qfe1 Bd3 Rb4 Ba6 Bh7 Na7 Rc4 Nb5+ Ke7 d6+ Kf7 Nf2 Kf6 d7 Qc6 d8N e4 d5 Ke5 d6 Kf4 d7 Qb4 Nd4 Qbb7 Nf7 Qe1 Rf1 h1Q Bh3 Qg2 d8N Ke3 Rh1 Qgg1 Nd3 Qg2 Nde5 Kf2 Nd6 Qgg1 Nf1 Qg3 Bg4 Kg2 Bh5 Qg4 Ng3 Qf5 Be8 Qg6 Bf7 Qe8 Bb4 Rh6 Ng4 Nf4 Bb5 Qec6 Bd5 Nfe6 Kb2 a1Q+ Kb3 Qaa6 Kb2 Qaa8 Ba5 Rh2 Ka1 Rh4 Ba6
nBr3NK/kQ1B2pN/rRbq2Pq/2N1qb2/3RB2N/8/2Rb2q1/N5Nr b - - 0 1 illegal: No possible last move
2KQ1Rn1/2N5/B1rB4/1bnN1B1k/1BRr2R1/1p1bBp2/r2q1Pn1/3N1b1B b - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Bg4 cxd5 Bf3 b4 axb4 d6 Bg7 d5 Bd4 e3 Bg4 exd4 Bc8 Kd2 c5 Kd3 h5 Ke4 f5+ Ke5 Kf7 a4 Kg6 g4 b5 a5 h4 a6 b3 a7 f4 d7 b2 Ke6 h3 d6 c4 d5 c3 Ne2 h2 Be3 c2 Ra4 c1N Rc4 b4 Nbc3 b1B Rg1 Kg7 g6 Kh6 g5+ Kh5 g7 h1B g6 b3 Rg4 Nf6 g8R Bc2 g7 Bhe4 Rf8 Bh7 g8B Bhd3 Bh7 Ba6 Bf5 Rh6 Qd2 Bb1 Nd1 Bb5 Nec3 Na6 Be2 Qa5 d8N Rg6 Bf1 Ne2 d7 Qb4 d6 Ng8+ Kf7 e5 Ke8 e4 Nd5 Nd4 Be2 Nf3 Bf1 Nh4 Be2 Nb8 Ne6 Ng2 Kd8 Qa5+ Kc8 Na6+ Kb7 Qa2 d8B Nc5+ Kc7 Rh6 d7 Rg6 Qa5 Qd2 Be7 Rd8 a8B Bbc2 Bf3 Bf1 Be2 Bd3 Bd6 Rh6 Bb7 Ra8 Qb6 Ra2 d8B Rf6 Kc8 f3 B8e7 Rg6 Qd8 Rh6 Nec7 Rg6 Bh6 e3 Ba6 Re6 Bhf4 Re4 Bfg5 Rd4 Bh6 Bb1 Bed3 e2 Bhg5 e1R Be3 Nb7 Bb4 Nc5 Bd6 Re2 Rf4 Re1 Bh3 Re2 Bdf5 Bd3 Rg4 Re1 Bg5 Re6 Be3 Nf4 Bg2 Rf6 Be7 Rc6 Bh1 Ng2 Bd6
Rn3NBK/1PB1N1QR/3bRR1r/r2ppn2/BrRnk1b1/8/7b/Rq2N3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 f4 a5 c4 a4 h4 d3 b4 d2 c5 a3 c6 g4 h6 e6 b6 a2 b5 g3 c7 g2 h5 d6 h7 Qe8 b7 Na6 b8R Qd8 h6 Ne7 b6 Qd7 b7 Nd5 Qg4 d1N Bc4 Qd8 Rh4 Ra7 Nf3 g1R Ra8 Rg8 h8R Nb8 h7 N5e3 Ne1 Nc6 Nc3 Qe7 Nd5+ Kf7 f6 Rg7 f5 Qd8 Ne7 Nc2 Bf4 Ra5 Rg8 Rf1 h8R Rh1 R8h7 N2d4 Rgh8 Bd7 c8B Nb8 Bb5 d5+ Ke5 Rh2 Ba4 Qb6 R7h6 Qb1 R8h7 Ne3 Qg1 Ke8 f7+ Kd8 Kf6 Rg4 Bg3 Rf4 Qg2 Kc7 Qb2 Kd6 Rg6 Bh6 f8R Kc5 Re8 Bf8 Rgh6 Rg4 Bc7 Rf4 Kf7 e5 f6 Bg4 Kg8 Nef5 f7 Kc4 Qg2 Rh1 Nf3 Kd3 Be6 Ke4 Rf6 Rh3 Kh8 Rh2 Nc6 Bd6 f8N Rh1 Bg8 Rh2 R4h5 Rh4 Rg5 Rh6 Ree6 Qc2 Rh1 a1B Ne7 Qb1 Qg3 Bc3 Ne1 Bd2 Rgh5 Be3 R5h4 Bg1 Qg2+ Bf3 Qg7 Bg4 R4h3 Bh2 Rc3 Rf3 Rc4 Rb3 Rf1 Rb2 Rf2 Rb3 Ra2 Rb4 Ra1
r1r1B2q/R1BqqB2/3b4/bn1K1p1B/p3n3/1k1BNP2/Nn2N2R/2BR1Q2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Bb7 Ra1 c4 d3 Bd5 exd5 cxd3 Kd2 Kd7 c4 Kd6 b4 f5 g4 e5 c5+ Kd7 c6+ Kd6 g6 h5 g5 a5 g7 h4 c7 h3 c8B h2 f3 e4 b6 Qd7 g6 Nh6 g8B Qe8 b5 Kc5 g7 Kb4 d6 Qd8 b7 Be7 b6 Qd7 Nc3 Rh7 Nge2 Ng4 Bf7 Rh8 g8B Nf6 Bh5 Nc6 b8B Na7 b7 Nb5 Bc7 a4 b8R Qe8 d7 Bd6 d8N Qe7 Ne6 Kc4 Qe1 Kb3 Bgf7 Re8 Bd7 Rc8 Na2 e3+ Kd1 d2 Bde8 Ne4 Rb7 Nf6 Ra7 Ne4 Rg1 h1Q Rg2 Qhh4 Rh2 Qhf6 Qf2 Qh8 Qe1 Kc4 Kc2 d1Q+ Kb2 d3+ N6d4+ Qe6 Qa5 d2 Qa6 Qe1 Rb1 d1N+ Kc2 Qh4 Ra1 Qe7 Rb1 Kc5 Kd3 Q7d7 Nc2 Qee7 Nf4 e2 Ne3 e1B Ne2 Bc3 Rb2 Ba5 Rd2 Ndc3 Rd1 Nd5 Nac3 Kb4 Na2+ Kb3 Bd2 Ka3 Kc4 Nb4 Bc1+ Qb2 Nf4 Nd3 Kd5 Kb3 Ne2 Qa1 Ng1 Nb2 Bd3 Nc4 Ne2 Qh8 Qb6 Nb2 Qd4 Ng3 Qg4 Ne4 Qg2 Ng5 Qh1 Ne4 Qf1
1q1qBkN1/BR1R1rRQ/3p4/2pbR3/8/r1bK2nN/NB2r2P/1n1Rq1R1 b - - 0 1 illegal: No proof kernel
BbnB2B1/p2kP2n/R1rN3R/4R3/bbBK4/B3p2N/N3Q1q1/r1q1n2B b - - 0 1 illegal: No proof kernel
1BB4k/3qb1n1/R1R4Q/pK1NR3/1p1q2Br/P3NN1R/2nR1b1n/1r4Rn b - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 Qf6 h3 Qd8 Kd2 g5 Ba3 g3 Bg2 g4 Bf3 b6 Ke1 Bb7 Bg2 Bf3 Bf1 g2 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 Kd2 Kf7 Kd3 Kg7 Kc4 h5 e4 d5+ Kb5 h4 f4 h3 c4 h2 g5 d4 c6 d3 c5 d2 g6 Nd7 e6 Qe8 c7 Qf7 c8B Rh4 c6 Ngf6 e7 Nc5 e8R Nh5 f5 Qc7 f6+ Kg8 f7+ Kg7 e5 Qd6 e6 Nb7 c7 Qe7 Be2 Nf4 Bg4 Nh3 Nf3 g1Q Na3 g2 Nc4 Nc5 Ne3 Nf2 a3 a5 Ra2 Qd6 e7 Rb8 Bb2+ Qd4 Qc1 d1N Qd2 Kh8 g7+ Kh7 g8R Ne6 Rg6 Kh8 Bc1 Qe1 Rg1 h1N Rc2 Ng7 Rd8 Nf5 e8R Ng7 Re5 Qe2+ Rc4 Qed3 Bb2 Qf5 Rcc6 Qe6 Rd7 Be7 f8N Qf7 Ne6 Qe8 Rdd6 Qd7 Nf4 Rb7 Nfd5 Rb8 Bh3 Ng4 Qc1 Nh2 Bg4 Ndf2 Bc3 Nd3 Be1 Nb4 Bg3 Rh7 Rh6 Nc2 Rh3 Rb7 Nc4 Rh4 Qh6+ Kg8 Nce3 Rb8 Rd1 g1B Rd2 Bf2 Ba6 Rd8 c8R Re8 Ra8 Rb8 Bc8 Rb7 Ka6 b5 Rg6 b4 Bf4 Ra7+ Kb5 Rc7 Ba6+ Rc8 Bb7 Rf8 Bc8 Rf5 Ra6 Rg5 Bf5 Rg1 Rgg3 Rb1 Rg1 Rh5 Bg4 Rh4 Re6 Ne1 Bb8 Nc2 Qg6 Kh8 Re5 Bf6 Qg5 Be7 Qh6+
n3NRQb/3R1Pq1/Nr2Bk2/1N3q1B/2pnnpnR/1r3N1N/7N/B2b3K b - - 0 1 illegal: No proof kernel
1BQn1K2/3BN1rr/2np1R1R/b2P4/k1BqR1rR/2q1Np2/n2N4/qR4R1 b - - 0 1 legal: proof: g4 h5 gxh5 e5 a4 b5 axb5 d6 b6 Nc6 b7 Nb8 f4 exf4 b4 Nh6 c4 Bf5 b5 Na6 b6 Nb8 Nf3 Bd7 Ng1 Bb5 cxb5 Ng8 Kf2 Kd7 Kf3 a5 Kg4 g5 Kf5 c5 e4 f6 Kg6 f3 Kf7 f5 h4 f4 d4 a4 d5 a3 e5 g4 h6 g3 h5 c4 h7 f2 h6 a2 Nh3 f3 Nf4 c3 Nd2 c2 Ng2 Ne7 Rb1 a1N Bc4 f1Q Ne3 g2 Rg1 Na6 b8R Rg8 h8R Qd3 h7 Nb4 b7 Nbc6 b6 Qc7 Re8 Bh6 b8R Ra7 b7 Rg7+ Kf8 Qd4 Qe2 Qa5 e6+ Kc7 Qd3 Qa2 Qc3 Nd8 Ba3 c1Q Bc5 Nec6 e7 Nb3 Ra8 Nf7 b8N Qa1 Qc2 Rb7 Ba7 Nfd8 Qf5 Qcc3 Qe6 Nca5 Nc6 Nc1 Qg4 Na2 Qe6 Rb2 Bb8+ Kb6 Qc8 Bf4 Ra7 Bg3 Rd7 Be1 Rb7+ Kc5 Rb4 Rg4 Rg8 Rb3 h8R Rg7 Ra4 Rb7 Rh6 Rg4 Rf6 Rc7 Rh1 g1R Rgg6 R1g2 Rgh6 Rg7 Rg1 R2g4 Bb3 Kb5 Rc4 Qa7 Rcf4 Qad4 Bc4+ Ka4 Re4 Ndb7 Rd8 Rh7 e8B Rcg7 Ne7+ Nc6 Rd7 Nbd8 Rdb7 Qb4 Bd7 Qa5 Nb3 Bc3 Nd2 Qac5 R7b2 Ba5 Rc2 Qa3 Rcc1 Qb3 Rgh1 Qb4 R1h4 Qbc3 Rg1
rRbB2K1/1p2R3/4npR1/3kr3/QnR5/1R1Rnn2/1NNr1P2/BN1q1Bn1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 d4 h5 g4 e6 gxh5 Qd7 e4 Bd6 e5 Qe7 exd6 Qd8 Kd2 Kd7 Kd3 c5 Kc4 g5 h4 e5 a4 g4 h6 b3 a5 f6 a6 b2 h7 e4 a7 g3 h5 e3 h6 g2 Rh3 e2 Nf3 g1R Qa4+ Nc6 Ne1 Qe7 Rb3 Qe3 Nc2 Rb8 a8N e1N Nb6+ Kd8 d7 Kc7 d8R Rg2 Re8 Kd6 Re7 Rg5 Bd2 Nd3 Bc3 Qe6 Raa3 Nf4 Rb4 Qd7 Rab3 Kc7 d6+ Kd8 d5 Ne6 Qa1 Ra8 Na4 Re5 Bd4 Qc7 d7 Qd6 Qa2 Kc7 d8R+ Qd7 Bc3 Kd6 Qa3 Ncd4 Qa2 Ne2 Bd4 Ng1 Bc3 Kc7 d6+ Kc6 Bd4 Qe8 d7 Qh5 Rf8 Qf3 d8B Qd1 Rd3 Kd6 Rbb3 Kc6 Rfe8 Kd6 Rg7 Ne7 Rg6 Nd5 Re7 Rf8 h8R Ne3+ Kc3 c4 h7 Re8 Rf8 Kc6 h8R Kd5 Rff7 Rg8 Rc7 Re8 Rfe7 Rf8 Kb4 c3 Rc4 Re8 Nba3 b1N Nb2 Nd2 Nb1 Ndf3 Qa4 Rg8 Kb5 Rg7 Kb6 Nc5 Kc7 Rh7 Ne1 c2 Rf8 c1N Nc2 Na2 Rfg8 Ke4 Kd6 Nb4 Rh8 Bf5 Rhg8 Ne6 Kd7 Rh5 Ke8 Kd5 Kf7 Rh4 Bc3+ Rd4 Rf8 Nf4 Rfe8 Bc8 Kg8 Ne6 Ba5 Bd7 Rb8 Bc8 Bd8 Ke4 Rd2 Rh5 Nd3 Kd5 Ba1 Re5 Nb2 Ng7 Rdd3 Ne6 Rdc3 Rd2 Rd3+
R3N3/1r1p2Nq/K6Q/N1b1rrrb/3nN3/1BqPRNB1/2p1q3/2kR1BN1 b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 a4 Ne4 h4 gxh4 a5 Nc3 b6 Nd5 b5 Nf6 Ne2 Bc8 Ng1 Ng8 a6 Nc6 Qe2 Na5 Qd1 Nb7 axb7 Bg7 Ra5 Bh6 Ra1 Bf8 Rh3 a5 Ke2 e5 Kd3 h5 Kc4 Kf7 b8N Kf6 g4 Kg5 f6 Kf4 f7 c5 g5 a4 b7 a3 b6 a2 Kb5 e4 g6 e3 d3 c4 g7 c3 Qd2 c2 Na6 Qe7 b8N Ra7 b7 Nh6 g8B Nf5 Nc6 Nd4+ Ka5 Qe6 b8R Bc5 Nc3 Bb7 f8N Qe7 Rg3 h3 Ra8 h4 Bb3 h2 Nh7 h1Q Ng5 h3 Rb1 a1Q+ Ba3 h2 Rd1 Bb4+ Kb6 Qhe4 Na5 h1R Nc7 R8h5 Ne8 Q7h7 f3 Bf8 Bd6+ Qe5 Qh2 e2 Rh3+ Ke3 f4+ Bf3 f5 e1R f6 Be7 f7 Rb7+ Ka6 Bf8 Bc7 Bc5 f8N Qee7 Nfe6 Qb2 Nge2 Rg1 N6g7 Rg2 Ng1 Rg3 N5e6 Rf5 Ng5 Rg2 Qd6 Rg3 Qh6 Bh5 N5f3+ Rgg5 Rh2 Re2 Bg3 Qa1 Re1 Qe5 Nh4 Kd2 Rg2 Qe3 Rh2 Qf2 Rg2 Ree5 Re3 Qb2 Nhf3+ Kc1 Ne4 Qc3 Rh2 Qfe1 Rd2 Qe2 Rd1+
4RNR1/B2Rbp1r/1N3Rnq/1bN5/1pR1r1Bp/6Q1/1B1PR1r1/1K1kn1n1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Kd7 a4 b5 e4 h5 e6+ Kd6 e7 Kc5 e8R Kd4 a5 c5 g6 h4 a6 c4 g7 b3 e5 b4 d6 c3 g5 b2 e6 c2 e7 Nf6 g8R Nd5 a7 Nd7 g6 Rh7 g7 Nc3 Bh3 Kd3 Bg4 Nc5 d7 Nb7 Nh3 Qc7 d8B Qd7 Qf3+ Kd4 Nf4 Qa4 Rf1 Qa6 Qg3 Nc5 Ng6 Ne6 Rf6 Ne2 Nc3 b1R Na4 Ng1 Nc5 Nf4 Bb6 Bd7 Rc8 Rb3 e8R Be7 Nf8 Bb5 Bb2+ Rc3 Rb1 c1N Kd1 Ng6 Rh8 Kc4 g8R Re3 Kc2 Nd3 Re1 Re4 Re2 Ne1+ Kb1 Rb8 Rc7 Rc8 a8N Rb8 Nd3+ Kb3 Ba7 Qb6 Rd7 Qe3 Rdd8 Qh6 Nb6 Rc8 Rd5 Rc5 Rd7 Rg5 Ka1 Kc2 Nc5 Kd1 Kb1 Bc6 Rd4 Bb5 Rc4 Rf5 Rd8 Rf2 Rd7 Rg2 Nfe6 Nc2 Re8 Ne1 Nf8 Qg5 Rg8 Qf4 Qc3 Qh6 Qg3
5BNN/6N1/1R2p1bK/qn4B1/rR1b1R1R/k1B1pqp1/rn2P3/2R1Q1qR b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 Qd6 gxh5 Qd7 Bg2 Qd8 Be4 fxe4 h4 Kd7 d4 Kd6 Kd2 a5 Ke3 c5 Kf4 g6 Kg5 e3 f4 a4 b4 a3 h6 a2 f5 c4 h5 e6+ f6 c3 h7 c2 h6 Ba6 b6 Nc6 b7 Qd7 b8R Qe7 b5 Bc8 b6 Qa7 b7 Qc5 f7 Qa5 Bb2 c1Q Qe1 Nb4 Nc3 Ra6 Nh3 Nd3 Nf4 Qb4 Nh5 Bd7 Ng7 Qd2 Rc1 a1Q Rh4 Nf6 Ne4+ Ke7 Rh1 Be8 Bc3 Ra2 d6+ Kd7 d5 Qa5 Rh4 Nb2 Rh1 Be7 f8B Bd8 Rh4 Bb6 Rf4 Rg8 h8N Bd4 h7 Bf7 Rh4 Ne8 Kh6 g5 Rh1 g4 Rh4 g3 Rh1 Qd8 Rh4 Qc8 Nf6+ Kd8 d7 Kc7 d8R Kb6 d6 Kb5 d7 Ka4 Rh1 Qc6 Rdc8 Qg2 d8B Nd6 Rc4+ Ka3 Rb4 Bg6 Ra8+ Ba7 b8R Qf3 R8b6 Nb5 Rc8 Qd1 Rcc4 Qa4 Rf4 Qa5 Nge8 Rg7 Ng8 Rd7 Ng7 Rd4 Bg5 Rc4 Rc6 Bd4 Rb6 Nd6 R4b5 Ra4 Rb4 Nb5 Nf7 Qb1 h8R Qbe4 Rh7 Qg2 Nh8 Qg1 Rhh4 Qf3 Rh3 Be4 Rh1 Bd5 Kg6 Bc4 R7h4 Bd3+ Kh6 Bf5 Rfg4 Bg6 Rf4
nB6/1R1B1N1K/pn4NB/Pb2ppq1/3nbB2/BrQ2R2/4r1N1/k1R2qB1 b - - 0 1 illegal: No possible last move
qn2N1B1/1rB5/p1pn4/1B1B1b2/n2kN1qb/R4P1Q/RNrB1R1p/2BK4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kf7 b4 e5 g4 h5 d6 Ke6 d5+ Kd7 g6 c6 g7 a6 b6 e3 g5 h4 b5 h3 g6 e2 b7 h2 b6 e4 f3 Ne7 g8B Rh5 g7 Rh8 Nd2 Qc7 Nc4 Qd8 Nb2 Rh5 Ra2 Rh4 Nh3 Rh7 Ng5 Nf5 Ra3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 Ke5 g8B Qe7 d8B Qe6 d7 Nd6 Bc7 Qg4 d8N Bf5 Nde6 Be7 Ng7 Rh4 Qd3 Ra7 Ne8 Bd8 Kd2 e1N Kd1 e3 Ne4 Rh5 Qe2 Kd4 Qg2 Nd3 Qh3 Nc5 Bb5 Na4 Rf1 Bh4 Rf2 e2+ Ke1 Nd7 b8R Rb7 Kd2 e1Q+ Kc2 Qb4 Kd1 Qc5 Rd8 Nb8 Rd7 Ra7 b7 Rg5 Ba5 Qb6 Bad2 Qd8 Re7 Rg6 Nc5 Qc8 Ree2 Re6 Ne4 Re5 Bde6 Rc5 Ba2 Rc2 Bad5 Nd7 b8B Rb7 Bc7 Qa8 Ree3 Nb8 Ra2 Nf7 Rb3 Nd6 Rba3
4BN2/1NN5/p1pN2p1/q1B2qk1/qnKR2P1/b1RN4/Bb3rrN/n1Q3R1 b - - 0 1 illegal: No extended proof kernel
n2K1BRb/1r1p2q1/1B2k1BR/1R2n1r1/N4N1p/1R4Nb/1bpQb2P/RR6 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 g4 Kd2 Na6 f3 Nb4 fxg4 Nxc2 g5 Bh6 Nc3 Bg7 Nb1 Bf8 Kd3 Ke7 Kc4 a5 Kc5 h5 b4 f5 g4 h4 e4 c6 g6 f4 e6 a4 e5 f3 g7 f2 g5 a3 g6 a2 b6 Rb8 b7 Nf6 g8N+ Ke8+ e7 Nd4 Kd6 c5 g7 Kf7 e6+ Kg6 b5 Kf5 b6 c4 Ne2 c3 Qd2 c2 Nf4 Nh5 Nc3 Nf6 Nh6+ Kg5 g8R+ Bg7 e8R Nh5 e7 Kf6 Bd3 f1B Nf5 Nf3 Na4 Ne5 Ba3 Kf7 Ng3 Bh3 Rhb1 Nf6 Bc5 Nd5 Bg6+ Kf6 Be3 Rh5 Rb3 Ra8 b8B Ra7 b7 Bh8 Bb6 Rg5 Rab1 a1B B8c7 Bg4 b8R Bh3 Bc5 Bc3 R8b5 Ba6 B7b6 Nc7 Ra1 Qa8 Rb8 Bb2 e8R Rb7 Re7 Qa7 Rh7 Na8 Rh6 Bc3 R5b4 Be2 Rb5 Bb2 Rgc8 Kg7 Ke7 Qa6 Kd8 Kf6 Bf8 Qa5 Rf3 Qc3 Rff1 Qd4 Rfb1 Qg1 Rc3 Qd4 Rcb3 Qc3 Nd5+ Ke6 Rc8 Qd4 Rb8 Qg4 Nf4+ Kf6 Be8+ Ng6 Bd6 Rf5 Rc8 Rd5 Rcc5 Re5 Bf8 Rh5 Ng2 Ke6 Rf5 Qd4 Rf7 Rg5 Rg7 Qc3 Rg8 Qg7 Nf4+ Kf6 Rh7 Ne5 Rh5 Nd3 Bg6 Ne5 Nd5+ Ke6 Rh7 Ra7 Rh6 Rb7 Nf4+
2NN3R/5pKB/bN3P2/1qq3n1/1kN1nN2/N2Q1rbq/1R1B2pp/5RbB b - - 0 1 illegal: No possible last move
Rrn1RqB1/r7/4B1BB/2p2N1N/1bPp1rB1/3pnBR1/1pNk2p1/6KQ b - - 0 1 legal: proof: g4 f5 d4 g5 b4 e5 h3 a5 bxa5 exd4 Qd3 b6 Qd2 Bb7 Qd1 Bf3 gxf5 g4 Bg2 g3 Bf1 Bg4 hxg4 Bc5 Qd2 Be7 Qd1 Bf8 c4 Kf7 a4 Kf6 e4 Ke5 f4+ Kd6 f6 Kc5 a6 Kb4 a7 c5 e5 d5 f7 h5 f5 b5 f6 d3 e6 g2 Kf2 h4 a5 h3 e7 d4 e8B h2 a6 Ne7 g5 Qa5 g6 Ng8 g7 Qc7 Nf3 Qb6 Be2 Qb7 Nh4 Qc6 Bh6 Qe4 Na3 Kc3 Nc2 b4 Nf5 b3 Bg4 Be7 f8N b2 f7 Qd5 Ne6 Bd8 f8R Ba5 Nf4 Nc6 Nh5 Bb4 Bg6 Qf7 Re8 Nge7 g8B Ne5 Re1 h1R Re3 Qf8 Rg3 Rh3 Qh1 Nc8 Kg1 Rh4 Ra2 Rb8 a8B Rh7 Bad5 Re7 Bde6 Ra7 Bd1 Rf4 Bg4 Kd2 Ra4 Rh7 a7 Rhb7 a8B Ra7 Bh3 Ng4 Bf3 Ne3 Bhg4 Re7 Ra8 Rd7 Qh2 Ra7 Qh1
1B1bq1R1/2q1r1Bb/BBr1Bk1B/1R2b3/N5KP/1qn4Q/5rQ1/B2N2n1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 e4 f5 exf5 b5 a4 d5 axb5 Qd7 c4 Qd6 cxd5 Qd8 Ke2 Kf7 h4 g5 f4 c5 d4 e5 a6 g3 Kf3 c4 a7 e4+ Kg4 g2 b6 c3 b7 c2 d6 e3 d5 e2 d7 e1R d6 Re5 f6 Rf5 Qd3 Bh6 Nc3 Rh7 Rb1 Ke6 f7 Qe8 f8Q Ne7 d8B Nd5 d7 Bg7 Na4 Nc6 b8B Nc3 Ne2 g1B Rb5 Be5 Qg7 Nd4 Bf6 Nf3 d8B Bb6 Rg1 Bb7 Rg2 Ng1 Qh3 Be4 Bd2 Ba5 Bb6 c1Q Qg6 Qb2 Bg7+ Rf6 f5+ Ke7 Bde3 Rc6 f6+ Ke6 Bd2 Qb3 f7+ Ke7 Bh6 Bb1 Qe4 Kf6 f8B Re7 Bc1 Bd3 Bb2 Bc2 Ba1 Bb1 Bf2 Bd8 Bb6 Bd3 Rg3 Bc2 Qeg2 Bh7 Bd6 Rb8 a8B Rbb7 Bb8 Rbd7 Nf4 Rd2 Nd3 Rf2 Ndb2 Rf7 Kh5 g4 Bc4 Ra7+ Bf7 Re7 Bb7 Rc8 Ba6 Rc6 Rd3 g3 Nd1 Rcc7 Kg4 Rc6 Qgh1 g2 Rg3 Nge2 Q1h2 g1Q Q2g2 Qh2 Be6 Ng1 Rd3 Bg3 Rdd5 Bd6 Rg5 Qe5 Rg7 Qc5 Rg8 Be5 Bc4 Qd6 Be6 Qc7 Bfg7+
2r3r1/2P3R1/1n2q2Q/bq2N2r/QN1R1R1B/2RR2K1/1qB2R2/rn3qRk b - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kf2 d5 b4 Kd7 c4 Kd6 b6 Ke5 b5 Ke4 b7 e5 c5 a5 f6 h5 b6 h4 g7 h3 g6 h2 c6 d3 c7 d2 f7 d4 g5 d3 Na3 a4 Nf3 Qe7 Ra2 Qd8 Nc2 Bb4 f8Q Nd7 b8R a3 b7 Ngf6 g8R Nd5 g7 Qe8 g6 Nc3 Rd8 Nb1 b8R Ba5 Rb3 Rc8 Rc3 Nb6 Nb4 Qb5 Kg2 Ke3 Rd4 e4 Qa4 Rh5 Rac2 a2 Qd6 a1R Rf8 Rh8 g8R Rh5 Rg1 h1R g7 Rh8 Rf7 R1h5 Re8 Rf8 Kg3 Rfh8 Bg2 Ke2 g8R e3 Rgg7 Rg8 Na6 Qb2 Qh6 Qb5 Bh3 Qb2 Rg2+ Kf1 Rff8 d1Q Bf5 d2 Nb4 Qe2 Ree4 d1Q Rcd2 Qc4 Reg4 e2 Bc2 Qa6 R2d3 Qb5 Bg5 Qdc1 Bh4 e1Q+ Kh2 Qe6 Ne5+ Qf4+ Kh3 Qff5 Kg3 Qff6 Rgd2 Kg1 Rg2+ Kh1 Rff7 Qf1 Rff2 Qa3 Rgf4 Qb2 Rg1+
n1K1b2N/r4B2/1rk3pR/R7/1Q1P1r2/Qn1BQQq1/rQ2Q1qb/1Q3N2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 g4 f5 gxf5 h6 b3 Qd7 Ba3 Qd8 Be7 Bd7 Bh4 Bc8 Bg5 hxg5 Kf2 Kd7 Kg3 c5 Kg4 a5 h4 c4 e4 a4 f6 c3 Kf5 a3 b6 g4 b4 a2 e6+ Kd6 f7 g3 e5+ Ke7 b5 g2 h5 c2 h6 c1R b7 Nd7 b8Q Ra3 b6 Rd3 b7 Ngf6 h7 Rc5 Qe2 Qb6 d6+ Kd8 Nh3 g1Q Nf4 Rh3 Ng6 Ra3 Rh6 Be7 f8Q+ Ne8 d4 Qe3 Nd2 Nf6 d7 Rg8 h8Q Qg1 Qh7 Ne4 Nh8 Qg2 Qf3 Bh4 Bd3 Qd6 Nf1 Rb5 Qa8 Kc7 d8Q+ Kc6 b8Q+ Rb7 Qg5 Nc7 Qge3 Bg3 Qaa7 Rab3 Qa3 Ra7 Qg6 Rb1 Qbb2 Na8 Qee2 Qc7 Qfb4 Bd7 Qh7 Be8 e7+ Qd6 e6 Bh2 Qee3 Qdg3 Qee2 Bd7 e8B Rf8+ Bf7 Be8 e7+ g6+ Ke6 Kc7 Qg7 Nd2 Qgf6 Nb3 Q6f5 Rc1 Q5e4 Rc5 Q4e3 Rb5 Qb1 Rb8 Qeb2 Rb5 Bg8 Rf4 Bf7 Bc6 e8Q Rb6 Qfe2 Kb7 Qef8 Be8+ Ke7 Kc6+ Kd8 Qg5+ Kc8 Q2g3 Q3f3+ Qd5 Qfe7 Qe4 Qbd1 Qd5 Q7e3 Qe4 Rb1 a1R Qde1 Ra2 Ra1 Qd5 Qeb1 Nc5 Qg4 Qdg2 Qac3 R2a3 Ra2 Rb3 Ra4 Ra3 Ra5 Ra2 Qca3 Nb3 Qgf3+
2QQ1QN1/5b2/Q4P2/3b3k/1RbQn1rp/qb5r/1NQ1q3/QK1BBRr1 b - - 0 1 legal: proof: d4 b5 h4 f5 a4 c5 axb5 cxd4 e3 g5 hxg5 e5 Qe2 f4 Qg4 e4 Kd2 Bd6 Qe2 f3 Qd1 Bf4 exf4 e3+ Ke1 e2 Rh6 Na6 Kd2 Nb4 Rh2 Nd5 Rh1 Ne3 fxe3 Qe7 Ra4 Qf6 Ra1 Qd8 g4 Kf7 b4 Kg6 c4 e1R Kc2 d5 f5+ Kf7 e4 a5 g6+ Kf6 c5 h5 g5+ Kg7 e5 a4 e6 f2 c6 a3 e7 h4 e8Q a2 b6 Re7 b5 Qd6 b7 Qh2 b8Q Rh7 b6 Be6 b7 Qd6 c7 Rh5 c8Q Ra5 f6+ Kh8 g7+ Kh7 Nh3 Bf7 Nd2 Kg6 Nc4 Qh2 Qe5 Nh6 b8Q Ra3 Qbc7 Nf5 Qed8 Ng3 Be2 f1B Bd2 Ne4 Nf2 Rh3 Rb1 a1Q Be1 Qa3 Rb4 d3+ Kb1 d4 Ng4 d2 Nb2 d3 Qa6 Rd7 Qcc5 Rd4 Qdc2 d1B Nh6 d2 Ng8 Rh7 Bg4 B1c4 Rf1 Bf3 Qdf8 Bh1 Bd1 Qe2 Qcd5 Kh5 g6+ Ng5 Qda5 Rg4 Qd4 Bhd5 Qaa4 Ne4 Qfc8 Qad3 Qa1 Rh8 Nh6 Qde3 g8Q Qa3 Qgd8 Rg8 g7 Qh2 Be2 d1B Bf3 Qe2 Qf8 Rh8 g8Q Rh7 Qfd8 Rg7 Qgf8 Rg6 Ng8 Rg5 Qcc3 Bdb3 Qc2 Rg6 Bh1 Rg1 Bg2 Rg4 Bf3 Qf2 Bd1 Qh2 Rf4 Qe2 Rf1
K3b3/1n3PbN/pN1N1qq1/2Nn4/4QN2/q1NR3n/R2rBkN1/3n1B1Q b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 f4 f5 exf5 g5 b3 Bd7 f6 Na6 f5 Bc8 Bb2 Nb8 h4 a6 g4 Kf7 Be5 Nc6 Bf4 gxf4 g5 Nb8 g6+ Ke8 Qg4 Ra7 Ra2 Rb7 Ra4 Rb6 Ra1 Rc6 Qd1 Rc3 Na3 Rg3 Nb1 Rg5 hxg5 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 d4 Ke3 f7 e5+ d6 h5 b4 f3 g7 f2 f6 h4 g6 c6 d5 e4 b6 h3 b7 h2 b5 Be6 b6 Be7 f8N Qe8 Nc3 Nh6 g8B Qc8 g7 Rh7 Nge2 Bd7 Nf4 Ng4 Ra2 Be8 f7 Rh6 Nh7 Bf6 d7 Qd8 d6 Rg6 Be2 f1N Ng2+ Kf2 Qd4+ e3 Qe4 Qe7 d8N Qe6 Rg1 h1N d7 Qf5+ Kd6 c5 Kc7 c4 Ne6 Nc6 b8N Nd8 Nef4 Nb7 d8N Rh6 Nde6 Qg6 Nd7 Rh2 Kb8 Bd4 Nd8 Nf6 Ka8 Nd5 Nde6 Qf6 Nc7 Qg6 N7b5 Bf6 Nd6 Be5 Bd1+ e2 Nc5 Nfe3 Re1 Kg3 Rf1 e1Q Be2 Qa1 Rd1 Nf2 Rd3 Nh3 Bf1 Qb2 Be2 Kf2 Bf1 Nd8 b7 Nd1 b8N Nb7 Nbd7 Bf6 Nb6 Bd4 Nb1 c3 Be2 c2 Nc3 c1Q Bg4 Qh5 Ncb5 Qbc2 Nf8 Q2d2 Rg3 Qh7 Qe6 Qcc2 Ne1 Qh4 Bh7 Ba1 g8Q Qb3 Bd3 Qbb2 Nh7 Qa3 Bf1 Qc2 Bf3 Be5 Nc3 Ke3 Qe7 Rd2 B3e2+ Kf2 Re3 Qf5 Rd3 Bh8 Qe4 Qhf6 Qh1 Qh5 Qg6 Bg7 Qge4 Qhg6 Neg2
Q2QQ2n/p1Q2P1N/r1rnrQ2/2b2n2/n1B1Q1Qb/5Nk1/1RR1b1B1/1K6 b - - 0 1 legal: proof: f4 f5 a4 b5 axb5 d5 e4 g5 c4 Bg7 b3 Be5 exf5 Bg7 f6 Nc6 cxd5 Bf8 f5 Nb8 h4 Bd7 g4 Bg7 h5 Bh6 Bb2 Bf8 Be5 Bc8 Bf4 gxf4 g5 Qd7 Ke2 Qe6+ Kf2 Qf7 Ke1 Qg6 hxg6 Be6 Bc4 Bd7 Bf1 Bc8 d4 Kd7 Kd2 Kd6 Kc2 h5 b6 e5 g7 c5 g6 e4 f7 c4 b7 e3 f6 e2 b4 e1B b5 f3 b6 c3 Nd2 f2 Rc1 h4 Ne4+ Kd7 d6 Ke6 d5+ Ke5 d7 Kf4 d8Q h3 d6 h2 d7 Nh6 g8Q Bb4 f8Q Na6 g7 Nc5 Qh7 Na4 g8B Bc5 Kb1 Nf7 Ng5 Kg3 Bg2 f1N Qdh5 Ne3 Qfe8 Nc4 b8Q+ Ncd6 Qhe4 Rh6 b7 Nh8 Bc4 Bef2 f7 c2+ Ka2 Re6 Qbc7 Rb8 Nh7 Be1 Rb1 c1R Nf3 Bef2 Rf1 h1N Qf6 Rc3 d8Q Bd7 Qfd4 Bb5 Rfc1 Rc8 Rb4 Ra3+ Kb1 Ba6 b8Q Be1 Ba2 Be2 Bc4 Ra2 Q4f6 Ra3 Qcb7 Rc6 Q7a8 Kf2 Rb7 Nb6 Qfg6 Ra6 Qbc7 Na4 Qgf6 Ng3 Rc2 Ngf5 Bb3 Bd2 Bd5 Bg5 Rbb2 Kg3 Bc4 Bh4 Qhg4+
NnNq2RQ/n2BQ2r/3n2b1/2k4P/RbR3b1/1K3R1n/1p4RR/R1B3b1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ra7 exf5 Rb7 a4 axb4 Ra2 b3 Ra3 b4 Ra1 Rb5 axb5 Bb7 Ke2 Ba6 Ke1 Bc8 d4 Kd7 Kd2 Kd6 h4 g5 f4 e5 f6 c5 f7 g4 b6 c4 h6 e4 f5 g3 f6 b2 Kc2 e3 h7 c3 h5 e2 b7 e1B Nh3 g2 Kb3 g1N Na3 b1B Nc4+ Kc7 d6+ Kc6 d5+ Kc5 d7 c2 d6 Qb6 d8R Bh6 f8R Qa5 f7 Ne2 d7 Nf4 Nb6 Bd2 Rh2 Qb5 Qe2 Qa6 Ng5 Qa5 Bh3 Nf6 Na8 Ne8 Qe7+ Nd6 Rg8 Be3 f8R Bg1 Be6 Nh3 Nf7 Bd2 Rgg2 Qc7 Rde8 Qd8 Rfg8 Be1 R8g3 Bc3 Reg8 Bd2 Rf3 Be1 Kb2 b3 Ka3 b2 Kb3 Bc3 R8g4 Ba5 Rga4 Bb4 Bg4 Rg8 h8Q Rg7 Bf5 Rh7 Be6 Qb6 d8R Qc7 Rdg8 Qd8 Bd5 Bf5 Bc6 Bg4 Bh6 Bc3 Bd7 c1N+ Ka3 Na2 Bc1 Nb4 Kb3 N4c6 Rc4+ Kd5 Raa4 Na7 Ra1 Nf5 Nd6 Bb4 Nc8 Nd6 Ra4 Na6 b8R Bg6 Rb7 Nb8 Rb6 Nf4 Rba6 Nh3 Rcf4 Kc5 Ra1 Be8 R6a4 Bg6 Rc4+
n3n2k/1n3P2/bR1q3r/4BK2/1p1R1BN1/RN3RpR/2r3R1/1nbQR2Q b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 g4 h5 f4 g6 g5 Bg7 Be2 Bh6 fxg6 Bf8 Bg4 hxg4 f5 Qd7 Qb3 Qd6 Qd1 Qd8 Kf2 c5 Kg3 b5 Kf4 c4 a4 b4 h4 c3 d4 e6 f6 c2 a6 Rh6 a5 Rh8 f7+ Ke7 d6+ Kd7 a7 e5+ Kf5 e4 a6 e3 d5 e2 g7 e1N g6 Qa5 h5 Qa3 h6 Qa2 h7 Be7 Nh3 Bb7 Nd2 Qb3 Nf2 Bf6 Rh3 Qg3 Nb3 Bg5 Bf4 Nf6 g8R c1N g7 Na2 Re8 Bh6 g8R Nc3 Ra3 Nd3 Re1 Nc5 Rg6 Kd8 d7 Ne8 Rb6 Nb1 Ra2 Qh2 Rae2 g3 Ng4 Qg1 Rg2 Qd4 Reh1 Ke7 d8R Kf8 d6 Kg7 d7 Bg5 Re1 Qd6 Rc8 Bh6 d8R Nbd7 Rcc6 Rc8 a8Q Rc7 a7 Ba6 Qb7 Rc8 a8R Bg5 Ra7 Bh6 Qa8 Nb7 Rc3 Rc7 Rf3 Rc2 Qc8 Bg5 Qc4 Bh6 Qf1 Bg5 Qh1 Bh6 Rc6 Nb6 Rd7 Na8 Rb6 Rg8 Rd8 Kh8 Rd7 Rg6 Rd8 Be2 Ra3 Ba6 Rd7 Bg7 Rd8 Rh6 Rd7 Bb2 Rd8 Kg7 h8B+ Kh7 Bhe5 Bc1 Nf6+ Kh8 Rd7 Qc5 Rd4 Qd6 Ng4+
k1K3n1/Nr1NB1p1/B3Np1N/1pQ1R3/R1r2PQ1/5NN1/1N2p1bn/3b1r2 b - - 0 1 legal: proof: b4 b5 a4 c6 axb5 Qc7 b6 Qd8 b5 Bb7 Ra4 Ba6 Ra1 Bc8 g4 cxb5 c4 h5 gxh5 Rh7 d4 Rh6 c5 Rh8 e3 e6 c6 Bc5 dxc5 d5 Ra4 d4 Ra6 d3 Ra1 Qd4 exd4 Kf8 Ra5 Ke7 Ra1 Ke8 Kd2 Kd8 Kc3 a5 h4 f6 f4 e5 c7+ Kd7 d5 a4 Kb4 d2 h6 e4 d6 Kc6 h5 Kb7 c6+ Ka6 Kc5 a3 h7 e3 d7 a2 Kd6 Ra7 d8N Rb7 h6 Bd7 c8Q Be6 c7 Nc6 Ne2 Bd5 Kd7 Nge7 Nbc3 Nf5 Bh3 Re8 h8N Bg8 h7 Bd5 Ng3 Bc4 Ne6 Na5 Na4 Nb3 Re1 Bd3 Qg4 d1B Ba3 Nbd4 Be7 B1e2 Ng6 Nb3 h8N Rf8 Ne5 Nd2 Nhf7 Nf1 Nh6 Bd1 Nf3 Nh2 Nb2 Bf1 Re2 Rg8 Qf8 Bg2 Kc8 Ra7 b7 Rh8 Rc2 e2 b8N+ Kb6 Rc4 Rb7 Nd7+ Ka7 Re4 Ka8 Re5 Rg8 Kd8 Rh8 c8N Rg8 Na7 Rh8 Nf7 Nh6 Kc8 Ng8 Nh6 Rb6 Rc1 a1R Rc4 Rb7 Ra4 Rb1 Qd8 Rc1+ Qc7 Rc4 Qc5 Rh7 Nhf5 Rh4 Nh6 Rh5 Re3 Rd5 Re5 Rd3 Ra2 Rdc3 Ra4 Rc1 Qg5 R4c3 Kd8 Bc2 Nb8 Rb6 Nf8 Rf1 Bc8 Bb3 Qg4 Rc2 Ba6 Rb7 Kc8 Rc4 Ne6 Bd1 Nd7
1N1K1B1r/1rBn4/B2bR3/Q1B5/kB1P2nN/2qnQrrB/r1R1b3/3q3B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 g4 a4 b4 c4 e4 a3 d4 f3 e5 h4 d6 f6 g6 c3 g5 h3 e6+ Ke8 b6 f2 b7 h2 b5 a2 g7 c2 d7+ Ke7 g6 Kd6 e7 Rh7 e8Q Kd5 b6 Kc6 Ke6 f5 Bh6 c1R Ba6 f1N Nc3 f4 Nb5 f3 Nc7 f2 Qb3 Rc5 Re1 a1R Nf3 Nf6 g8B Ra3 g7 Nd5 Nh4 Ra4 Kf7 Nf6 Qee3 Nh5 Qb4 Qg5 Ke8 Raa5 d8B Ra4 Be7 Qg3 Be6 Nf4 g8B Rg5 Bh3 Nd3 Kd8 Nd7 b8B Ra2 Bc5 Bd6 b7 Ra7 Rg1 h1Q Bf8 Rh8 Rg2 Nh2 Qb1 f1R Rc2 Qgf3 Bh7 Ng4 Be4+ Rd5 Qb2 Qg3 Beg2 Rf3 Qb1 Qf1 Bh1 Rg5 Bb4+ Kb6 Bc5+ Ka5 Qb6+ Ka4 Bb4 Ra8 Ba7 Rg6 Ree2 Qd1 b8B Bb7 Qe7 Qge1 Re6 Qc3 Qg5 Bd5 Qe3 Rgg8 Qb7 Rg6 Bac5 Ra7 Qb6 Be4 Bc4 Rgg8 Na6 Rb7 Bc7 Bg6 Nb8 Bh5 Qg5 Nh6 Qc1 Rgg3 Qe3 Ng4 Ba6 Bf7 Rg6 Bc4 Rh6 Nf4 Rf6 Be2 Re6 Nd3 Qa5+
1nqk3q/1q2bNPR/3n2nr/1B4RN/1KRQ2r1/Qb5q/R5qR/B1RR4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 g4 a5 d4 c5 Kd2 a4 Kc3 h3 b6 h4 d6 e4 b5 c4 f6 e3 d7+ Kf7 b7 h2 d5 e2 d6 e1N g5 a3 g6+ Ke6 g7 h3 b6 a2 f7 Nf3 f5+ Kf6 Bb2 Rh7 Na3 Nh6 Kb4+ c3 Nc4 Ra7 Ne2 Be7 f8R+ Nf7 Ne5 c2 Rc1 a1Q Nf4 Ng1 Nh5+ Kg5 f6 Rh8 Bb5 Qa2 Qd4 Nf3 Ba1 Rh6 Rh8 Nh4 Rh7 Qh8 d8R Be6 Rc8 Bb3 Rc4 Ng6 Rhd1 h1Q Rd2 Nd7 b8R h2 Ra8 Nb8 b7 Qc6 Re2 h1Q Rh2 Ra3 Ra4 Qb2 Ra7 Qcg2 Ra8 Ra6 Ra7 Rc6 Ra2 Rc5 d7 Nd6 d8R Rc7 Re1 c1Q f7 Qh3 f8Q Qbg2 Rc8 Qcc2 Rc1 Qcf5 Rd8 Qc8 Qf3 Rd7 Qfc3 Kf5 Qb2 Ke6 Qa3 Rc7 Rf8 Rd7 Rff1 Rd8 Rfe1 Rf8 Red1 Rf4 Rad2 Rg4 Ra2 Nd7 b8R Qgb7 Ra8 Nb8 Ra5 Q1g2 Nc6 Kd7 Ne5+ Kd8 Nf3 Qa6 Bc6 Qe8 Rg5 Qb6+ Bb5 Qh8 Ne5 Qbb7 Nf7#
3R4/2P3N1/r1QR2R1/qb1Rrrn1/r2RbQ2/3n1B1R/2r2b2/N1RKB1qk b - - 0 1 illegal: No possible last move
1bb1Q2k/1rPb1Bbq/rR2q1Bn/2B4K/1N2b3/2B3NB/2R1Qn2/3B2Bn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 f5 Kg3 Kf7 Kh4 Kg7 g4 a5 e4 h5 b4 d5 c4 a4 e6 a3 b6 f4 e5 a2 e7 f3 e8B d3 c5 d4 b7 f2 c6 d2 c7 d3 e6 Ra3 b5 Kh7 b6 Kg7 e7 Qd4 g6 Qa4 Qe2 d1Q Bd2 Bd7 Nc3 Qab3 g5 Nc6 b8B Qdb1 b7 Nh6 Ba7 Ra6 b8B Nb4 Bc5 Qe6 Bh3 f1B Rh2 Bg2 Nd5 Be4 Bc3+ Kg8 g7 d2 Bba7 d1B Rg2 Nd3 Bg6 Nf2 e8Q Bc8 Nb4 Ba4 Rh2 Bad7 Rg2 Qc2 Rb1 a1B Rb2 Qd3 Rc2 Bb2 Rg3 Bc1 Rf3 Be3 Rf6 Qb3 Rc6 Qe6 Rb6 Bd4 Bf7+ Kh7 g8B+ Kg7 Bh7 Rg8 g6 Kh8 Rb7 Bfg7 Rb6 Rf8 Kg5 h4 Kh5 Be3 Nf3 Rg8 Nd4 Rf8 Nf5 Rg8 Bf1 h3 Ng3 h2 Bh3 h1N Ra2 Qe7 Bb3 Qe6 Bd1 Bed4 Rc2 Bcb7 Qe7 Rb8 Qf7 Bbc8 Qf8+ Ng8 Qe8 Rb7 Bf8 Bf5 Rc6 Bgf6 Rc1 Ng4 Rc2 N8h6 Bb6 Bde5 Be3 Bd4 Bg1 Ba7 Rb6 Ngf2 Bc5+ Kg7 Bg8 Bb8 Bf7 Be5 Bf8+ Kh8 g7+ Kh7 Bc5 Bf6 g8B+ Kh8 Bg6 Bg7 B6h7 Be4 B7f5 Bec6 Bfg4 Qh7 Bf5 Bg2 Bg6 Be4 B8f7+
r4q1Q/1BNR1RbB/3bbnBq/br5n/1r2Bk1Q/P1BK4/q6B/2N1B3 b - - 0 1 illegal: No possible last move
4B1q1/3r4/4r2b/BQ1b4/BBRN1brn/2nkBB2/RbPr4/1Q1NKb1B b - - 0 1 illegal: Other
Qnrb2b1/kN2N2p/1R4r1/4q1BR/2r1Q1R1/1KP3bn/1R1qRR1R/1n5B b - - 0 1 illegal: No possible last move
1b3RQr/1r1b3q/1k2Rb2/4nP2/5R1R/2KB1bnR/1B1QpNR1/n2Rb1N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 g4 c5 d6 h3 b6 Kc6 g5 h4 d7 a4 b7 a3 f6 a2 d5+ Kb6 g6 e4 b5 h2 g7 c4 d6 h3 f7 e3+ Kc2 c3 f5 Nc6 Bb2 Ra7 b8R+ Rb7 Qd2 Qh4 d8R Bd7 Bd3 e2 Re8 Nf6 g8R Ne5 Rg2 Nd5 Re6 Ne3+ Kb3 c2 Kc3 Bg7 f8R c1B Ra8 Qe7 Ra4 Nc2 Rf4 Bf6 Rh4 Qh7 Rf4 Bc6 d7 Bh4 d8R Be1 Re7 Bf3 Rdd4 Bc6 Rh4 Bd7 Rdf4 Nc4 Na3 Ne5 Rb1 Na1 Nc2 Qh5 Ne3 Qh6 Nd1 Qh7 Ba3 Bb2+ Kb4 Bd4 Nf2 Bc5+ Kc3 Bd6 Bb2 Bb8 Nf3 Nb3 Rd1 a1B Rhg1 h1N Re6+ Bd6 Rg3 h2 Rgh3 Ng3 Rg2 h1B Ng1 Ka5 b6 Bb8 Rgh2 Bf3 Re7 Ra7 b7 Kb6 Rg2 Bd6 b8Q+ Rb7 Qe8 Bc7 Qf7 Bb8 Kb4 Bb5 Qg8 Bd7 Ba3 Bd4 Bb2 Na1 Ree8 Nc4 Re3 Bf6 Ree8 Ne5 Kc3 Bg5 Re7 Bf6 Re6+
3rQKQR/r3nQ2/r3b1R1/1N5r/1Qn2q2/1N1pQ3/1Q2r2P/bBqkB1Q1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 d5 b4 g5 c4 a5 h6 d3 b6 d4 f6 a4 b7 d2 f7 Ke3 b5 a3 h7 a2 b6 g4 f5 g3 f6 g2 Ne2 g1Q Na3 Qg4 Nb5 Ra3 Rg1 Nc6 b8Q Qf5+ Qe5+ Kd3 b7 Ra5 b8Q Qf2 Rg6 Bh6 f8Q e6 f7 Ra6 Qe8 Qc7 f8Q Bg7 Qff7 Qf4 Bh3 Bd7 Qg1 Kc2 Qee3 d1R Bd2 e5 Bf5+ e4 Be1 Nge7 Nc1 Be6 Nb3 Rd2 Rb1 a1R Qb6 Bf6 Qa5 Ra7 Qb4 R1a6 Ra1 Re2 Rd1 Rf8 h8Q Rg8 Qhg7 Rh8 Qgg8 Rh5 Qb8 Qc8 Qb6 Ne5+ Kd6 Bg7 c5 Bf6 c6 Nc4+ Kc5 Rd2 c7 Rd3 Ra1 Bh8 Ra2+ Kd1 Rag2 Bg7 Rh6 Bh8 Rgg6 Be5 Rh8 Bf6 Qef2 e3 Qb2 e2 Qge8 Be5 Be4 Rd2 Bb1 d3 Qbd4 Rda2 Qde3 R2a4 Qb7 Rd6 Qbg2 Rd8 Q2f2 R4a6 Qfg2 Qb7 c8Q Qd7 Qb8 Ba1+ Qbe5 Qb7 Qgg5 Qbf3 Qb2 Q3e4 Qd5 Qee5 Qfg8 Qc3 Qgf7 Qc1 Qfg8 Bf5 Qdf7 Be6+ Qg5 Nb6+ Bc3 Nf5 Qgg1+ e1R Kc6 Nc4+ Kc5 Rf1 Be1 Rf2 Qff6 Bd7 Qff7 Re2 Kd5 Bc6+ Ke6 Ne7 Qf5 Ba8+ Kf7 Bd5+ Kf8 Be6 Qff7
8/R1qBn2P/r1R4r/R2r4/1rn1RBk1/1Rb1QNpR/1Nn4R/q2Q1b1K b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 Kf2 Kf6 Kg2 a5 h4 c5 b4 e5 d4 g5 b6 a4 d6 c4 b5 c3 b7 g3 b6 a3 h5 g4 h6 e4 d7 e3 h7 a2 d5 c2 d6 e2 Nf3 e1Q Na3 Ra5 Bb5 Bh6 Rh3 Qb4 Kh1 Qd2 Nc4 Ne7 Nb2 Qc7 d8R Ra8 d7 Qd5 Re8 Ra6 d8Q Qde5 Q8d2 Nbc6 b8R Bg7 b7 Na5 Qe3 Nc4 Ra8 Qd4 Bd2 c1R b8R Rb1 Bd7 Qc3 Rb3 g2+ Kg1 Q3a5 Ra7 Qc3 Kh2 g1R Bc1 Rg2+ Kh1 g3 Bd2 Bb7 Rc8 Rd8 Bc1 Kf7 f6 Kg6 f7 Bh8 f8R Rh2+ Kg1 Q3a5 Re8 Bc3 f5+ Kf6 Bd2 Be4 Bc1 Bd3 Bd2 Bf1 Bc1 Kf7 f6 Kg6 f7 Qae5 f8R Qg7 Bb5 Rd5 Bd7 Qge5 Rf5 Qg7 Re5 Kf6 Re6+ Kf5 Rcb8 Kg4 Rc6+ Nf5 Ree6 Ne7 R8b5 Qd4 Ra5 Qde5 Qee1 Qg7 Bf4 Qh8 Qe3 Qf6 Na4 Rbb2 Rc1 a1N Rc2 Rb1 Rg2 Nc2 Nb2 Qd4 Rh5 Rh3 Rh2 Qf6 Kh1 Qg7 Rhe5 Rh6 Reh5 Qf6 R5h3 Qh8 Na4 Rb2 Rbb5 Rb4 Nb2 Ra4 Rb3 Rb4 Qdd3 Qd4 Qde2 Qd1 Qe1 Qb1 Qd1 Qa1 Re4+
2r1k1R1/R1np1N1P/1Q5R/bR1R1R2/KN2qb1R/n2b1rr1/1Br5/1Q2q2B b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 h4 a5 c4 g5 Kc2 e4 Kb3 e3 f4 d3 h6 e2 h5 e1Q b6 g4 c5 d2 f6 g3 b7 g2 f7+ Ke7 h7 Qh4 h6 Qg4 f5 Qg3+ Nc3 Qh3 f6+ Ke6 c6 Bd6 f8R Qe7 c7 Qe8 f7 Ke7 Nf3 g1R Ne5 Qg4 Rh4 Qe4 Bg2 Nc6 b8R Nf6 Na2 Nd4+ Ka4 Nb5+ b4 Ba6 c8R Nd5 Rc5 Ndc7 Rd5 Na3 Rbb5 Rc8 Bh1 Rg3 Rg8 Kd8 Qf1 d1R f8R Rdd3 Rf5 Rdf3 Nf7+ Ke7 Qf2 Bf4 Qb6 Qe1 Bb2 Qe4 Rbc5 Bd3 Rb5 Qe1 Rf8 Rhg8 h8R R8g6 h7 Rc6 Rhg8 Rc1 Rg6 Rc2 Rfg8 Qe4 Rbc5 Qe1 b5 Qe4+ Nb4 Qe1 R8g7 Kf8 Rgh6 Q8e4 Qa6 Ke7 b6 Ke8 b7 Q1e3 b8Q Qe1 Kb3 a4+ Ka2 Nc4 Qab6 a3 Kb3 a2 Ka4 Na3 Ra5 Qc3 Rdb5 Qce1 Rd1 a1B Ra7 Bf1 Rdd5 Bd3 Bc1 Bc3 Bb2 Qe7 Qg1 Q7e5 Qbb6 Q1e4 Qb1 Qe1 Na6 Ba5 Nb4 Q5e4 Rg8+
BbqN3B/2k2B1R/qnQ3bK/2p5/r1b2R2/B1B1B1B1/1pPQ4/2N1nrn1 b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 e5 dxe5 f5 exf5 Be7 gxh5 Bf8 Ke2 g5 Ke3 b5 f4 d5 h4 Kd7 a4 g4 e6+ Kd6 f6 g3 f5 b3 Kf4 b4 Kg5 d4 h6 d3 h7 c6 h5 g2 e7 d2 e8Q b2 a5 b3 h6 Nd7 a6 Qa5 f7 Kc7 a7 Nb8 Na3 b1B Nb5+ Kb7 f6 b2 Ne2 g1N Ra4 Ba3 f8B Ba2 f7 Na6 Rf4 Nf6 Bd6 Nc5 f8B Nfd7 Nbd4 Nb6 Ne6 Bc4 Bfe7 Rf8 h8B Qa6 h7 Nd3 Bc3 Bc5 h8B Ne1 Rh7 Be3 Ba3 c5 Nd8+ Kc7 Kh6 Bf5 Bh4+ Rf7 Bg3 Bg6 Qe6 Bd4 Bg2 Be5 Bd5 Qc8 Nd4 Bd6 Nb3 Qa6 Qde2 d1Q Qd2 Qg4 Qe4 Qgc8 Qeg2 Re7 Bf7 Re2 Qf3 Rf2 Qg2 Rf1 Qe4 Rb8 a8B Rb7 Qde2 Ra7 Be3 Qb5 Q4g2 Ra4 Nc1 Qba6 Qd5 Kd7 Qh1 Bb8 Qd2+ Kc7 Qc6#
1N1Nb3/5R1Q/1n1N1n1p/pBNk3r/3r1qb1/1PQ2RB1/K1Nb1N1q/N5n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 Kd6 Kc2 e5 Kb3 a5 f4 c5 g4 e4 g5 e3 g6 h6 b6 h3 b7 c4+ Ka2 e2 b3 e1N f6 c3 g7 h2 f7 c2 f5 Ra7 f6 Qc7 Bf4+ Kd7 d6 Ke6 d5+ Kf5 d7 Ke4 d8N c1Q d6 Nc6 b8N Qb7 d7 Qb6 Qf3+ Kd4 Qc3+ Kd5 Nb7 Qc7 d8N Rh7 Bb5 Be7 f8N Bb4 f7 Qe5 Nh3 Nce7 Rf1 h1B Rf3 Nf6 g8Q Bg4 Nf2 Rg7 Na3 Nc8 Bg3 Rg5 Nc2 Qcf4 Nfe6 Nb6 f8N Rh5 Nd6 Rd7 Qh7 Bg2 Ned4 Bf1 Qcd3 Bd2 Qc3 Bd3 Rc1 Bg6 Na1 Be8 Nfe6 Qe2 Nc5 Qee5 Re3 Nf3 Rf1 Ng1 Rf3 Qe2 Nh1 Qh2 Ndc2 Re7 Nf2 Re4 Re1 Rb4 Re7 Rd4 Rf7
1b1R2B1/1r2B3/1BN2Kpk/rB1P1n2/6QR/1n1qBB1q/bN4Qp/3r2Bb b - - 0 1 illegal: No possible last move
N6q/1N1R1bQ1/3nk1P1/3n2RB/BB1qB1K1/B1r2r1n/BpnpQ2b/2B5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 Kf3 d5 a4 b5 c4 e5 g4 h5 c6 d4 c5 d3 g6+ Ke7 g7 h4 f6+ Ke6 f7 b3 a5 d2 a6 b4 a7 b2 c7 b3 c6 h3 g5 h2 g6 e4+ Kg4 e3 f4 e2 f5+ Kd6 Nf3 e1N Qe2 Ba6 c8Q Qc7 f6 Qb7 c7 Rh7 Nc3 b1Q Ne4+ Kd5 Ne5 b2 Qd7+ Bd6 c8B Rh3 f8B Rc3 f7 Ne7 g8B Qb4 Rg1 h1N Nc4 Nbc6 Nc5 Nf5 Nb7 Qc2 Ra3 Rb8 a8B Nce7 Qc7 Bf4 Bd7 Nd6 Ba4 Bh2 Rg3 Qc5 Rg1 Qe3 Nb6+ Ke6 Bg2 Bd3 Be4 Nd5 Be7 Bc4 f8B+ Ke5 Qd7 Qd4 Rg2 Rf3 Rd3 Qcc3 Rg1 Nc2 Rg3 Nf7 Ba3 Rc8 Bfb4 Nd6 Qh7 Kf6 Bf7 Ke7 Qh6 Qh8 Qg7 Qd4 Rg1 Bb5 Rg2 Be8 Rg3 Rc3 Rg2 Nc7 Ba2+ Bf7 Rg3 Qf2 Rd5 Ke6 Rg5+ Nd5 Rh3 Qd8 Rh8 Qb8 Rd8 Qd4 Rd7 Qd8 Na5 Qf8 Bb7 Qh8 Na8 Ng3 Ba6 Nh5 Nb7 Nf4 Bad3 Re3 Bf3 Nh3+ Bde4 Qg8 Kh4 Qh8+ Bh5 Rf3 Kg4
1BkN2R1/1nn2rN1/4p2N/2bpQN2/1QB1R2K/r3q1Pb/1qN1r2N/4rN2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 f4 d5 Kf2 Kd7 Kg3 h5 b4 a4 g6 d3 g7 a3 b6 d2 b5 a2 f6 Nh6 g8N Rh7 f5 Nf7 c5 Ra6 c6+ Kd6 b7 Kc7 b6+ Kd6 c7 Kd7 Qb3 d1R Nf3 Qe8 Nh6 Qd8 Bc4 Rd2 Rh4 Rc2 Bf4 Rh8 Nh2 Rf2 Nd2 Bg7 Rg1 a1Q Qb4 Ne5 f7 Bf6 Ndf1 Bg7 f6 Re2 f8Q Rg8 f7 Nec6 Rg4 Bb2 Kh4 Bd4 Qg7 Na5 Qe5 Qb2 g3 Rf8 Rg8 Bc5 Rg2 Rd2 Re2 Qe8 Re4 Ra8 Ba2 Na6 Bc4 Kc6 b8N+ Kb7 Nc6 Re2 Nd4 Bh3 c8N Nc7 Nc2 Ra6 Kg5 h4 Nd6+ Kb8 Ndf5 Kc8 Kh5 Nb7 Kg5 Ra3 Kh5 Qa4 Kg5 Qab3 Kh5 Re8 f8N Qe3 Ne6 Rf8 Neg7 e6 Kg5 Nd8 Kh5 Rf7 b7+ Kd7 b8N+ Kc8 Ne8 Nb7 Nc6 Bg2 N2g4 h3 Nd8 h2 Kh4 h1R+ Ngh2 Bh3 Neg7 Rg1 Nd2 Rd1 Ndf1 Rde1 Qec3 Na6 Bb8 Nc7 Qe5
1nB2r2/kRqQ3n/1pRrp1R1/B3K3/1P6/NRRb2n1/RqRp1b2/N2Q4 b - - 0 1 illegal: No possible last move
1R1K2Rk/4nqnr/1Q4BN/2N4r/p1pn1pNN/BNb5/b5P1/1n1NQN2 b - - 0 1 illegal: No possible last move, all moves rejected
nN6/BB2n2B/2pprb2/1p2N1R1/Qr1PB3/BR4BK/rnB1k2b/Qb6 b - - 0 1 legal: proof: e4 f5 exf5 b5 b4 g5 h4 a6 hxg5 c6 c4 a5 c5 Qb6 cxb6 axb4 f4 Kf7 Kf2 h5 Kg3 e5 a4 b3 d4 h4+ Kh3 e4 g4 b2 b7 e3 f6 Ke6 f7 Kd5 f5 Ke4 f6 e2 a5 e1B g6 Na6 b8B Nb4 g5 Nc2 a6 Na3 a7 Bc3 g7 Bcb4 g6 Bb7 Nd2+ Ke3 Bd3 b1R Ne4+ Bd2 Bg3 Rh6 Bc2 Rb8 a8B Rc8 Nf3 Ba6 Ne5 Be7 f8B Nc4 f7 Bf6 Bc5 d6 f8Q Nb6 B1a3 Rb4 Rg1 Ne7 Bb7 Ra8 g8B Ra7 g7 Na8 Qb1 Ke2 Bd5 Bf4 g8B Rg6 Bh7 Rh6 Be1 Bh2 Rg5 Rg6 Bg3 Rh6 Kg4 h3 Ra2 Rg6 Qa1 Rh6 Rb2 Rg6 Bc8 Bb7 Rb3 Ra5 Bd7 Bc8 Ba7 Raa4 Nc5 Ra6 Bc1 Ra2 Na6 Rh6 Bdf5 Bd7 Qg7 Be8 Ba3 Bg6 Bc8 Be4 Rc3 Bd3 Bb7 Rg6 Bcb3 Bb1 Bc2 Nc8 Rf3 Bg1 Qc7 h2 Bf2 h1N Kh3 Bg7 Rb3 Ne7 Qc3 Re6 Bg3 Bf6 Qa1 Bh2 Nb8 Nf2+ Kg2 Ng8 Bde4 Nd3 Kh3 Ne7 Qa5 Nb2 Qa4
1nNQ3B/Q2p2Q1/1b5B/rbqb1p1Q/2R1QP2/p6r/3p4/QKnRNkQ1 b - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 b5 hxg5 b4 e3 e6 Bc4 b3 Bd5 exd5 axb3 Qe7 b4 Qf6 b5 Qd8 Kd2 Ke7 b4 Ke6 g4 Ke5 c4 Ke4 Kc2 f5 b6 a5 b7 h5 c6 a4 c7 h4 g6 h3 g5 a3 c5 d4 g7 h2 b5 Qe8 c6 Rh6 g6 Bb4 b6 Rh4 Nc3+ Ke5 e4 d3+ Kb1 Kd4 e5 Qe6 Ne4 Ra5 Nd6 Rh3 Bh6 d2 f4 Kd3 Nf3 Rh5 Ne1+ Ke3 Rf1 Nf6 g8Q h1B g7 Qd5 e6 Ra8 e7 Ra4 e8Q+ Kd4 Qe4+ Kc3 Qg4 Na6 b8B Bf3 b7 Rh1 Qh5 Qc4 Ba7 Rh4 b8Q Nd5 Rh1 Bb7 c8Q Rh3 c7 Ra5 Qcd8 Bc5 c8Q Ndb4 Qgf7 Nd3 g8Q Bd1 Qg1 Be2 Qfg7+ Bd4 Qc5 Bd5 Nc8 Nc1 Qbe5 Nb8 Qcc7 Qc6 Bb6 Bb5 Qa7 Qc5 Ra2 Kb3 Bc7 Be3 Qa1 Bd4 Be5 Kc4 Qeg2 Be3 Bc3 Bd4 Rc2 Bf2 Nf3 Kd3 Ne1+ Ke3 Bb2 Ra4 Rc4 Ra5 Qhh4 Ke2 Qe4+ Be3 Qh5+ Rf3 Qc3 Qf8 Nd3 Na6 Qgg4 Nb8 Rd1 Qb4 Ne1 Kf1 Qgg5 Bb6 Qce3 Qe7 Bh8 Rh3 Qgg7 Qc5 Qeg1+
1BK2RQR/8/1BNr3q/2Pr4/N1n1qB2/rp1R1p2/2nb1B1R/1R1B1k2 b - - 0 1 legal: proof: f4 c5 b4 a5 d4 axb4 dxc5 e5 fxe5 Bd6 g4 Bf8 a4 h5 gxh5 b5 cxb6 Rh6 c4 Ba6 c5 Bb5 axb5 Rh8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 h4 Kg3 e4 Kf2 e6 g5 b7 f5 e5 b3 e7 g4 Kd6 g3 h6 g2 h7 f4 e6 f3 h5 Ra6+ b6 Ra3 h6 Ra7 Be2 Nf6 Qd5 Na6 Nc3 Nb8 Rb1 Rg8 h8B Na6 h7 Bg7 e8R Ke1 e7 Qa8 Rf8 Nb4 Kc7 Ng4 e8R Ne3 Rd8 Ra3 Na4 Bh6 Bd4 Nbc2 h8R Rg6 Qg8 d5 Rd6 Qa6 Rh2 Nc4 Kc8 Rg5 Bde3 d4 Rd7 d3 Bd4 N2e3 Bd2+ Kf2 Ba5 d2 Rd6 d1R Rdd8 Re1 Bd1 Kf1 Ne2 Nc2 Bg1 Rh5 Rd3 Bd2 Nd4 Re6 Be3 Rd5 Bf4 g1Q Be3 Qg4 Bg1 Qb5 Bf2 Qb4 Nc6 Ne5 b8B Qg6 b7 Qbe4 Bd6 Nc4 b8B Qh6 Bf4 Red6 Bb6
N1B2RN1/1q1Bk1Np/n5Bp/7K/N1q1pNRB/2rPb3/5Q2/2b1bB2 b - - 0 1 legal: proof: c4 b5 h4 a5 a4 d5 cxd5 Bf5 axb5 Nc6 b4 Nb8 h5 Bc8 h6 gxh6 f4 a4 d3 Ra5 bxa5 e5 d4 Nc6 Nf3 Bf5 Ng1 Bd3 exd3 e4 Nf3 Bg7 Ng1 Ne5 fxe5 Bf8 Kf2 f5 Kg3 c5 d6 a3 a6 a2 d7+ Ke7 Kh4 c4 g4 c3 g5 c2 g6 f4 d5 f3 b6 f2 e6 Bg7 d6+ Kf6 b7 Qb6 b8N Ne7 d8N Bf8 d7 Qa7 g7 Nd5 g8B Nb4 e7 Qc5 e8B Ke7 a7 Qc3 a8B Qe1 Qe2 Kf6 Nc3 Bg7 Bh3 f1Q+ Kh5 Qg3 Bb7 Qge1 Na4 Qd2 Bg6 Qf2 Bge6 Qde1 Bg5+ Ke5 Bh4 Qc3 Rf1 Kd6 Bg2 c1B Nh3 a1B Rhg1 Qfe1 Ba6 Re8 Rf8 Qf6 Bf1 Qef2 Rg4 Qg3 Qf2 Ke7 Bb7 Qc7 Nf4 Bh8 Bef5 Na6 Nde6 Qc3 Nc7 Rc8 d8N Qc2 Nde6 Bd4 Na8 Bde3 Bc6 Qb1 Nd7 Qb7 Bg3 Qc3 Bh4+ Bf6 Ng7 Qcb4 Bb5 Rc2 Be6 Qc4 Bef5 Kd6 Be6 Bc3 Nf6 Be1 Bc8 Ke7 Bbd7 Rc3 Ng8+
R1R2BB1/4k2B/1q1r2b1/N1RRN1np/4n3/4P3/2bB1R2/1QKBbrrr b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 exf4 a4 d5 axb5 Ba3 c4 Be7 cxd5 Bf8 g4 f5 d4 h5 Kd2 c5 b6 f3 d6 f4 b7 c4 d7+ Ke7 g6 f2 a6 f3 g7 Nc6 b8B Qe8 d8R Ne5 e3 Qa4 d5 Be6 g5 Bc8 a7 Be6 g6 Rh7 d6+ Kf6 d7 Qc6 Rc8 Bf7 d8R Qb6 Ra5 Rh6 Be2 f1B Rdd5 f2 Rh2 Ke7 Nf3 Nf6 g8B c3+ Kc2 Bg2 g7 f1R Bd2 Ne4 Kc1 c2 Na3 Bg6 Bh7 Nf7 g8B Nfg5 Rac5 Bh3 Ne5 Bhf5 Nac4 Bg7 Nd3 Bc3 Na5 Rg1 Rf2 Bb4 Kb2 c1R Ne5 Rh1 Qc2 Rcf1 Bd1 Rhg1 Qb1 Rh1 Bc1 Be1+ Kc2 Rfg1 Bc7 Rb8 a8R Rb7 Bb8 Rd7 Bd2 Rd6 Kc1 Rf1 Be6 Rfg1 Bhg8 Rh8 Bh7 Rf8 Beg8 Nf6 Ba7 Bc2 Rc3 Nfe4 R3c4 Qc7 Bc5 Qb6 Bcb4 Rf6 R4c5 Rf3 Rg2 Rff1 Rf2 Ng3 Ba3 N3e4 Ra6 Rd8 Rc3+ Ke8 Be7 Qa7 Bf8 Qb6 Bg7 Ke7 Raa8 Rd7 R3c5 Rd6 Bf8#
2rNB1k1/1Kbq2N1/1n3n1R/1p1RNN2/1PBr2Q1/8/3Brq2/1Bbr1N1B b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 d3 c5 Qf3 c4 Qd1 c3 Be3 Bd7 Bc5 Bb5 Bxa7 Bc4 dxc4 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 h5 b4 b5 f4 c2 a4 c1R g4 h3 c5 h2 a5 h4 f6 h3 a6 Qb6 d6 Nc6 Kd5 e4 d7 e3 d8N+ Ke8 f7+ Ke7 f5 e2 f6+ Kd7 g5 e1B g6 Rc2 g7 Qa5 Bc4 Qa3 Nd2 Rh6 Ne2 Qa4 Nf1 Rd2+ Nd4 Rb2 Nf5 Bc3 Qg4 Rc2 Rd1 Bd6 f8N+ Ke8 Nd7 Qb3 Ne5 Nb8 c6 Qb2 c7 Nd7 Kc6 Rc8 Be3 Rh4 a7 Re2 a8B Bd2 Kb7 Bc1 Rd5 Nb6 Bd2 Qd4 Bd3 Qf4 Bb1 Qf2 Qg3 Rd4 Qg4 Ne7 g8B Kf8 Be6 Ng8 f7 Nf6 Bd7 Rf4 Be8 Rd4 Rg1 h1R Rg3 h2 Rh3 Rg1 Rh6 h1Q Ng7 Ke7 f8N Qh3 Nfe6 Rc4 Nd4 Kf8 Ndf5 Kg8 Ka7 Qd3 Bac6 Rd4 Kb7 Ra8 c8B Bc7 Bc8d7 Rc8 Be6+ Kf8 N1g3 Rd1 Nf1 Qh3 Rc5 Qd3 Bh1 Qh3 Bc4 Qd3 Rd5 Kg8 Qf4 Qh3 Nd6 Qf5 Qg4 Qd7 Ndf5
2n2B2/b2nNRBb/1pN2rBq/qBR3P1/2p5/NB2k2N/Qr6/2KN1q2 b - - 0 1 legal: proof: c4 a5 e4 g5 h4 f5 hxg5 e5 exf5 d5 cxd5 e4 b4 axb4 d3 Ra3 dxe4 Ra4 e5 Ra8 Kd2 Ke7 g4 h5 f4 c5 a4 b3 d6+ Kd7 a5 Kc6 f6 Kd5 e6 Kd4 a6 h4 f5 h3 f7 b2 f6 h2 a7 b6 g6 Bh6+ g5 Nd7 f8B Bg7 e7 Ne5 e8B Qc7 d7 Qd8 f7 Bh6 g7 Qe7 d8N Bf5 Nh3 Qb7 Nc3 b1Q Qa4+ Qb4 Bb2 Qe4 Rc1 Nd7 Bb5 Qb1 Qa2 Bh7 Rhf1 Ne7 g8B h1Q Ba1 Rb8 a8N Nc8 Nc7 Bg7 Rc2 Qa4 Nd1+ Ke4 Rf2 Be5 Nc6 Qa5+ Rc3 Qd3+ Kc1 Qdf1 Rcc2 Bh2 Bag7 Ra8 Ba4 Kd3 Nb5 Bb8 Na3 Ba7 Bb5+ Ke4 Bd6 Rb8 f8N Ra8 Bb3 c4 Rf7 Rg8 Ng6 Rf8 Nge7 Qh2 Rf5 Rf6 Bg6 Kd3 Rcf2 Ke4 Ng1 Qh6 Nh3 Qg2 Nc3+ Ke3 Rc5 Qf1+ Kc2 Re6 Rf7 Rf6 Nd1+ Ke2 Nb1 Qb4 Qa6 Bb8 Kc1 Ra7 Qa1 Ra2 Na3 Rb2 Nd5 Ba7 Bdf8 Qa5 Nde7 Qf3 Nc3+ Ke3 Qa2 Qf1+ Nd1+
b7/k6P/N5q1/n4rr1/1BRb1R1R/1R2p1pn/QnNNNnRB/4NK2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 Bh3 Kf7 fxg5 Be6 g6+ Ke8 g5 Bc8 Bg4 hxg4 b4 Kd7 d4 c5 h4 Kc7 f6 Kb6 f7 e5 d6 a5 d7 e4 g7 c4 h5 c3 g6 a4 d5 e3 d6 c2 h6 a3 h7 a2 Ne2 Ba6 Rh4 Nc6 Qd2 Qg5 d8N Nh6 g8R Qf4 g7 Nf5 d7 Nb8 Nb7 Qd4 d8N Qd7 Ba3 c1N Nc5 Ne7 Kf1 Qc6 Nde6 Qd6 Nd3 Nbc6 Ne1 Ne5 N6d4 Nc4 Ndc2 Ng6 Qd5 Rc8 Nd2 Nf4 Rb1 a1N Rb3 Nb2 Qe6 Be7 f8R Nh3 Rf4 Rc5 Rc8 Bf6 g8R Rf5 Rc4 Ka7 Qd5 Bb7 b6+ Ka6 Qe6 Ba8 b7 Ncd3 b8N+ Ka7 b5 Bd4 Bb4 Ndf2 Na6 Rg5 Rg6 Rf8 Rg8 Rff5 b6+ Kb7 Qd5+ Qc6 Qa5 Qd6 Qa2 Qg6 Rbc3 Nb3 Rd3 Na5 Rb3 Bc5 Rg7+ Kc6 b7 Kb6 b8B Bd4 Rg8 Kb7 Rf3 Kb6 Bh2 Ka7 Rf4 g3 Rf8 Ne4 Rf2 Rc5 Rg2 Nef2 Rf3 Rcf5 Rff4
4KB1n/rRNN4/qQnb1rBB/2pqP3/2B5/N3p1Rn/Nk3NB1/4r3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 h4 Kf7 hxg5 Ke8 e4 fxe4 d3 e3 Ke2 Bf5 Ke1 e2 Kd2 Bc8 Na3 e5 Nb1 e4 Kc2 e3 Rh5 Bf5 Rh1 Be4 dxe4 Qc8 Rh4 Qd7 Rh1 Qd8 Kd3 Ke7 Kc4 Kd6 b4 Ke5 g4 e1Q f4+ Kd6 f5 Ke5 d6 h5 Kc5 a5 f6 a4 g6 h4 f7 c6 g5 a3 g7 h3 g6 h2 b6 a2 b5 Rh4 b7 Qc7 b6 Qf2 Bb2+ Kf4 Nh3+ Kg3 Qb3 Kf3 Na3 Qg2 Rb1 a1R Rg1 Rf4 Nf2 Ne7 g8B Ra7 d7 Qh3 d8N Qg2 g7 Rg4 Ne6 Rg6 Bh7 Rg4 g8B Ra8 Bg7 Rf4 e5 Raa4 Bh6 Qc8 Kd6 c5 Nc7 Nbc6 b8N Ra7 Nd7 Qa6 b7 Ng6+ Ke6 Nh8 Bg6 Be7 f8B Bd6 Rb2 Re1 b8N Qb7 Nba6 Rf6+ Kd5 Qh1 Nb4 Qa6 Na2 Qg2 Rb1 Qh1 Bh3 Ke2+ Rg2 Kd2 Qb7 Rf3 Rg3 Qg2 Ke6 h1N Nd1 Rff1 Qb5 Qf3 Bg2 Nf2 B8f7 Qe4 Kf6 Qd3 Bc4 Nh3+ Kg7 Rf6 Nf2 Qd5 Rb4 Qa4 Qa6 Qa5 Rb7 Qa4 Qb6 Qb5 Nc1 Kc3 Na2+ Kb2 Be7 Nf7 Kf8 Nh8+ Ke8 Ng5 Bb3 Nh3 Bef8 Qa6 Bc4+
2RQnB1K/krB5/4b2B/3R1Pbr/1Npp1R2/3B3b/1RN3nr/1bB4R b - - 0 1 legal: proof: e4 e5 b4 g5 d4 b5 dxe5 f5 exf5 Bh6 a4 Nc6 axb5 Bg7 h4 gxh4 c4 Rb8 b6 Bf6 b7 Be7 b5 Ra8 c5 Nb8 Bh6 Bf8 Be3 Qf6 Bc1 Qb6 cxb6 Bg7 Be2 Bh6 Bf1 Bf8 Ke2 Kd8 Ke3 a5 Ke4 h5 g4 c5 f4 d6 g5 h3 e6 d5+ Ke5 c4 g6 h2 e7+ Kd7 e8R h4 f6 h3 f7 a4 f5 a3 g7 a2 Nf3 Rh5 Bd3 Ne7 Kf6 Ra7 g8R Ng6 Ne1 Nf4 Rg4 Na6 b8R Bh6 f8B Rb7 Nc2 Ng2 Rf4 Bg5+ Kg7 Nc7 Re5 Kd8 Nba3 Ne8+ Kg8 Kd7 Rb1 a1R Nb4 Ra2 Rb2 Kd8 Qd2 d4 Nac2 Kd7 Qe1 Kd8 Qh4 Kd7 Bh6 Kd6 Kh8 Be6 Rc8 Kd7 Rhe1 h1B Rec5 h2 Ref1 Rc7 b7 Kd6 b8B Kd7 b6 Rb7 R8c6 Kd8 Bc7+ Kc8 Bd8+ Kb8 Rd5 Ka8 Rc8+ Rb8 b7+ Ka7 Bc7 Ne1 Qh3 Be7 Ne3 Bg2 Qh4 Bh3 Rb1 Re2 Rb2 h1B Bc2 B1g2 Rh1 Be4 Bd6 Bd8 Bf8 Rh2 Qe7 Bd3 Qd7 Bg5 Qd8 Ng2 Bb1 Be2 Be4 Bd1 Bd3 Bb3 Nec2 Ba2 Rc6 Bb1 Rc7 Rc8 Rcc5 Rc7 b8B+ Ka8 Rc6 Rb7 Be5+ Ka7 Rc8 Bg4 Bed6 Bh3 Bc7
B2N1kn1/1B1Rrq1B/1PpK1n2/p7/4B3/2r1pNN1/RB1n2N1/NbQ2b2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 fxg5 e6 g4 Bc5 h4 Ba6 h5 Ke7 h6 Bd4 g6 Bg7 hxg7 Ke8 g5 Bc8 Kf2 a5 Kg3 h5 Kf4 h4 Ke5 h3 d4 e3 b4 h2 d6 e2 d5 e1N d7+ Ke7 b6 Ra7 b5 Qf8 d8N Ba6 b7 Nc2 b6 Qf2 d6+ Ke8 d7+ Ke7 Nf3 Qg1 Bb2 Na3 Nbd2 Qf2 Bd3 Qe1+ Be4 Rh5 Nf1 Qb4 Qc1 Rh3 Ra2 Rh5 Ng3 Rh6 Rd1 Nf6 g8B h1B g7 Bc4 g6 Bg2 Bh7 Qb3 g8B Nb1 g7 Nd2 Bf7 Ba6 g8B Bd3 Bh5 Bb1 Be8 Na6 b8N Rh3 Nbc6+ Kf8 Ncd4 Nc5 Nc2 Bf1 Na1 Qc4 Bb7 Nce4 Beg6 Qb3 B8f7 Ng8 Ba8 Nef6 Bge4 Qc4 Beb7 c6 Bfg6 Qb3 Kd6 e5 Bf5 e4 Ne6+ Kf7 Nf4 Kf8 d8N Qf7 Ba6 Re7 Ng2 e3 Bac8 Rh5 Be4 Rc5 Ba6 Rc3 B6b7 Nb3 Rd3 Nd2 Rd4 Ra3 Kc5 Rd3 Rd7 Rc3+ Kd6
5Nb1/1Nq3Nb/1R2p3/1n1n1R2/1rpR1BRq/1p1NNr2/RKB2kPQ/8 b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 g5 b4 axb4 h4 f5 exf5 Kf7 hxg5 Ke8 f4 Bh6 g6 Bg5 fxg5 Qd6 Rh5 Qd7 Rh1 Qd8 a4 Kd7 d4 Kd6 Kd2 b5 Kc2 h5 g7 c5 f6 c4 a5 h4 f7 e6 f8N b3+ Kb2 h3 g6 b4 a6 h2 a7 Qc7 Ra6+ Qc6 Bd3 Nf6 g8N Nh5 g7 Bd7 Nc3 Rh6 Nf6 Qb6 g8R Nc6 Nge2 Be8 Bc2 Na5 Nf4 Nb7 Rf1 h1Q Nd3 Nf4 Nh5 Qc6 Rb6 Qh4 Ng7 Rf6 Qh5 Bf7 Nd1 Rb8 a8R Rf5 Ra2 Rf6 Rh8 Bg8 Ne3 Rf5 Rh6 Rf7 Rg6 Rf6 Kb1 b2 Rg4 Rf5 Rb5 Qc7 Rb6+ Ke7 d6+ Kf6 d7 Nd6 d8R Nd5 Bd2 Nb5 Rdd6 Rf3 Rd7 Nf4 d5 Rb7 d6 Nd5 Rd8 Rb8 d7 Rb7 Raa6 Rb8 Ka2 b1B+ Kb2 b3 Ra2 Rb7 Rda8 Rb8 d8N Rb7 Qh8 Rb8 Rd4 Kg5 Nb7 Qhf4 Nef5 Kg4 Ne3+ Kg3 R8a5 Qh4 Qh7 Rf6 Rff4 Rf5 Rfe4 Rf3 Rg4+ Kh2 Nef5 Kg1 Bf4 Kf1 Ne3+ Kg1 Ndc5 Kf2 Qh8 Qg3 Qh2 Qh4 Bd1 Bg6 Bc2 B6h7 Nd3+ Ke2 Ra7 Na3 Nd8 Nc3 Rc6 Rb4 Raa6 Nab5 Rc5 Qb7 Rcg5 Nd5 Rb6 Qd7 Nb7 Qc7 Nc1+ Ke1 Rf5 Kf2 Nd3+
4R3/1q1B4/RrrbR3/B1RNPBn1/kBb1Qn2/2K1nq2/NB4q1/r2R3b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 c5 Kd2 a5 b4 h5 g4 f5 b6 h4 b7 c4 e5 a4 d6 Kc6 g6 Kb5 d7 h3 g5 f3 g7 h2 g6 f4 d5 a3 d6 f2 Bh3 f1R Ne2 f3 Bb2 f2 Nc1 a2 Qc2 Na6 b8B Qc7 d8B Be6 d7 Bd6 Kc3 Nc5 Qe4 Nd3 Bf5 Nh6 g8B Ra6 g7 Qb7 Ba5 Rc6 d8R Ka4 b5 Nf7 b6 Ng5 Rc8 Nf4 Bb4 Rh7 Bc7 Rh6 Bgh7 Re1 g8R f1Q Rg6 Qg2 Rf6 Bd5 Re6 Rf1 Rg1 h1B Bhg6 Re1 Be8 Rf1 Bd7 Rf6 Kd4 c3 Bd8 c2 Rc7 Bc5+ Kc3 Bc4 Rc8 Bd6 Bc7 Qa6 b7 Qb5 b8R Qb7 Bca5 Rd1 Nb3 Re1 Rc7 Rf1 Rbe8 c1Q+ Qc2 Qd1 Qe4 Qdg4 Nc1 Qh5 Na3 Qhg4 Nc2 Q4f3+ Ne3 Re1 Nd3 Rh6 Nd5 Rf1 Rd1 a1N Rcc8 Rg6 Ra8 Re1 Ra6 Nc2 Rf1 Ne3 Nc1 Rf6 Na2 Rg6 Rc1 Rh6 Rc2 Ra1 Rd1 Rh7 Bc8 Rhc7 Rcc1 Rb6 Bd7+ Rcc6 Kd4 Bd3 Rc5 Bc4 Kc3
1N1N1BQ1/2r5/1B1K1P2/kB1Nr1b1/2B3nq/r1R1B1N1/2nq1R2/2nbN1bq b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 b4 Kb6 d4 a5 f4 h5 d6 a4 Kd5 c4 g5 e4 d7 h3 g6 e3 f6 h4 f5 h2 g7 c3 f7 h3 f6 e2 Nd2 e1Q Ra3 c2 Ne4 Qg3 Qg4 Qe1 Ng3 Qd2 Rc3 a3 Nf3 a2 Ne1 Bd6 f8B Nh6 g8B a1B Qg6 Qc7 d8B Rh7 Be6 Na6 Qg8 Rd7 Bd3 Ra7 Rf1 h1R Rf2 h2 Bc4 Rf7 Bd7 Bf4 Ke6 Bg5 d5 Ng4 d6 Bb7 Be8 Rh7 d7 Rh5 Ke7 Bf3 Ke6 Bd1 Ke7 Kb7 b6 Qcf4 b5 Nb4 Bc7 Ra3 d8N+ Ka8 b7+ Ka7 b8N Rg1 Ne4 h1Q Na6 Qfh2 Ba5 Qh4 Nc7 Rg3 Bd7 Re3 Nd5 Rh7+ Ke6 Rf7 Bc6 Rc7 Kd6 Re2 Ng3 Re5 Bb2 c1N b6+ Kb8 b7 Ka7 b8N Nc2 Rb3 Qg1 Bbc3 Qgh1 B6b5 Bb2 Bcb4 Bd4 Rc3 Bb6 Nf7 Kb7 Bc5 Ka7 Be3 Bd4 Nf4 Kb7 Nd8+ Ka7 Bb4 Kb6 Bc5+ Ka5 Nd5 Qf1 Rf4 Qdh2 Bd2 Qfh1 Rf5 Bf2 Bde3 Bg1 Rf4 Qe2 Rf2 Qd2 Bb6#
3r3B/2n1KB1P/nN2BB2/r1r1R1qr/1R2r2n/1bb4q/RR1BQRN1/3k4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 h4 c5 b4 a5 e4+ f3 d4 g5 h6 f5 h5 f4 h7 a4 h6 a3 d6 a2 d5 c4 d7 c3 Ke6 c2 b6 Bg7 b7 Ra4 e5 Qb6+ d6 Kg3 b5 Kf2 Ne2 g4 Bd2 c1R Rh5 g3 Na3 g2 Nc4 g1N Bh3 Qe3 b6 Na6 b8R Ne7 b7 Nd5 Nb6 Ndc7+ Ke7 Re4 d8B Rc5 e6 Bc3 Re5 Bd7 Bf5 Ba4 d7 Bb3 Bh3 Rf8 h8B Rf5 h7 Rh5 Rc1 a1R Rc2 Raa5 Ra2 Qd3 Bf5 Qd5 Qc2 Kf1 Bg4 f2 Qb2 f3 Nf4 Bd4 Ng2 Ke2 Qc2 Bb2 Qd3+ Kd1 Qe2+ Kc2 Bh3 f1Q Kf6 Qd3 Nc4 f2 e7 Rcb5 e8B Rc5 Be6 Qg3 Nf4 Qfh3 Ng2 Ba4 Be7 Nf3 d8R Qg8 Rd3 Nh4 Rf3 Qg5+ Kf7 Rd4 Rff5 Rd8 Bef6 Qf3 Ke7 Qh3 B8f7 f1R Qg4 Re1 Rf2 Re4 Qe2 Rd3 Rd8 Rdd4 b8R Rd3 Rb3 Rd6 Rdb8 Rd8 Ra1 Bc3 R8b4 Bc6 Nb6 Bd5 Qb5 Bc4 Ra2+ Kd1 Rbb2 Bb3 Qe2+
R2b1q1k/2r1RPNR/6qn/B2K2BB/R5r1/3nB2R/N1bqrQ2/4rB1r b - - 0 1 illegal: No possible last move
5q1n/1B2rBnB/1n1r2bN/QKB3P1/nR2N1N1/1R1Bqq1N/7N/b4rk1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Ke4 g4 f5 g6 a5 g7 h5 g5 d3 e6 d6 e7 h4 e8B h3 b6 a4 b7 d2 b5 Ke3 b6 Kf2 e4 h2 e5 f4 e6 d5+ Kb5 a3 c4 d4 e7 a2 c5 f3 c6 d3 c7 Rh7 Bf7 Ra6 e8B Ne7 g8N Nd7 b8N Bg7 b7 Rd6 Na6 Ng6 b8N Nh8 Qa4 d1N Nc6 d2 Ne5 Ne3 Bd3 d1N Ba3 Nb6 Nc5 Nf5 Nd2 Nb2 Qa5 N2a4 Rb1 a1Q Rb4 Qe1 Nh6 Qe3 Nf1 Qe7 Rb3 Qf8 Nh3+ Kg2 Rb4 f2 Neg4 Ba1 Ne4 Ng7 Bg8 Bf5 c8B Bg6 Bef7 Na8 Bb7 N8b6 Nfd2 f1Q Nf3 Qff2 Rf1 h1R Rfb1 Rf1 Nfh2 Qff3 R1b3 Ne8 Be6 Re7 Bef7 Ng7 Bh7 Kh1 Rd4 Kg2 Bc5 Kh1 Rdb4 Kg2 Nf4+ Kg1 Nh3+
4k1q1/7n/N4QRr/1RKN1RR1/3Rq1BP/n3r1nb/2p2bBB/1B2Br1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 f5 Ke3 g5 Kd4 a5 e4 f4 b4 a4 h4 c6 e6 a3 b6 a2 e7 g3 d6 g4 e5 f3 d7+ Kf7 e8B+ Ke7 b5 f2 e6 g2 b7 g3 b6 Qc7 d8R Rh6 Bh5 Ra5 Nc3 Re5 Qf3 Rh8 Nh3 g1Q Bg4 g2 Nb5 Rhh5 Rd6 Rh7 Qf6+ Ke8 e7 Qh2 Rg1 Qd8 Nf4 Rh8 Nd5 Nd7 b8B Qh1 b7 Nb6 Kc5 Nc4 d4 Na3 Bd2 Rh6 Be1 Re3 Re6 Qa5 Bh2 Qa4 b8R Qa8 Bd3 f1N Bb1 Ng3 Re5 Bg7 Rg5 Bh8 Rf1 g1Q Rff5 Qgg2 Rg6 Qe4 Nbc7+ Kd7 Qe5 Nf6 Na6 Ke8 Rb5 Nh7 Qf6 Be6 Ndb4 Qd8 d5 Qa8 d6 Bd7 Kb6 c5 Nd5 c4 Kc5 c3 Bh3 Bg7 Bg2 Qb8 Rfg5 Bh3 Rf5 Kd7 Rgg5 Qg8 e8B+ Kc8 Bg6 Kd7 Bh5 Bf8 Bg4 Ke8 Bc2 Be7 Rc1 a1R Bb1 Bd8 Rc2 Ba5 Rcf2 c2 Rg6 Bd2 Rfg5 Rd3 Rff5 Be3+ Qd4 Bf2 d7+ Kd8 Ndb4 Ke7 d8R Re3 Rdd6 Ke8 Qf6 Rh5 Rd4 Rh6 Ba2 Rd1 Bb1 Rc1 Nd5 Rd1 Ba5 Rf1 Be1
1r2BN2/1NnR1K2/1Nb2bP1/Q1qp1r1N/RR3qkq/BR3n2/8/2r2NRb b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 c4 e4 b4 d6 g4 h3 g6+ Kf6 c5 e3 b6 h2 b7 d3 b5 a4 g5+ Ke7 g7 a3 f6+ Kd7 f5 e2 g6 e1R b6 d2 f7 a2 c6+ Ke7 c7 Kf6 Bb5 Kg5 f6 Ra4 Qh5+ Kf4 Ne2+ Ke3 Rg1 Rh4 Ng3 Kf4 Be8 Be7 f8N Na6 b8R Bd7 c8N Nh6 g8R Ng4 f7 Bf6 b7 Ne5 Ba3 d1Q+ Nd2 Qc2 Ndf1 Bc6+ Ke6 h1B Rg7 Qc5 Nd7 Rc1 f8N Nf3 Ndb6 Nc7+ Kf7 Rg8 Qe5+ Kg4 Qc3 d5 Qa5 Rh5 Nd6 Rf5 Nh5+ Kh4 Rb1 a1Q Rb4+ Qad4 Ra8 Kh3 b8R Qh4 Nb7 Qdd6 Qb5 Qh2 Raa4 Q2f4 Qa5 Rh8 Rd8 Rg8 Rd6 Rh8 Re6 Rg8 Re3 Rh8 Reb3 Rg8 Nhg3 Kg4 Nh5+ Qg3 Nfd7 Nb5 Ke6 Rc4 Bf7 Rb8 Be8 Rc1 Re7 Nc7+ Kf7 Kh3 Nf8 Qgh4 Nhg3 Kg4 Rd7 Qc3 Nd6 Qe3 Nb7 Qc5 Nh5+
nn1rn1NB/1B2qpP1/1BRNb2B/4N3/2qRB3/Nk1Qb3/1b5K/2q1rN2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 e4 Kd6 d4 a5 g4 h5 Kg2 c5 b4 h4 g6 c4 g5 c3 b6 c2 b7 a4 b5 a3 e5+ Kc7 d6+ Kb6 d7 Ka5 b6 Ka4 e6 a2 d5 Rh5 e7 Qc7 e8B Qc6 d8N Bf5 Ba6 Nf6 Na3 Bh6 Nf3 Be6 d6 Nbd7 b8B Nd5 b7 Qc7 Nh2 Bf5 Rb1 a1Q Rb6 Be6 Ba7 Bg7 b8B Bb2 Nc6 f3+ Kg1 h3 Bb7 Qd8 Bc7 Qe7 Ra6+ Kb3 Bd4 Rh6 Bh8 Rb8 Ne5 N5b6 Ra4 Qb1 Rd4 Na8 Bb6 Rc8 Qd2 Nb8 d7 Rh4 Qe2 Re4 Qd1 Re2 Be4 Re3 d8N Qa1 Bd7 Qb1 Nb7 Rd8 Bc8 f2+ Kf1 Re2 Nd6 Qa1 g7 Qb1 g8N Qa1 Nhf3 h2 Kg2 f1Q+ Kg3 Re3 Rg1 h1N+ Kh2 Ng3 g6 Nf5 Bcb7 Ng7 Rg3 Re1 Bh6 Ne8 g7 Qc1 Nd2+ Ka2 Rf3 Qd3 Nf1 Kb3 Rc4 Qc3 Rc6 Qd3 Rf2 Qc4 Qf3+ Qe3 Qg3 c1B Rd2 Qec3 Rd5 Bg5 Qd3 Be3 Qe2 Qd2 Rd4 Qdc1 Qd3+
1Q2B1N1/B2qp3/q4P1R/4b3/Nqn1rr1N/1k2BRn1/1Nb2B1K/Nb2rB2 b - - 0 1 illegal: No possible last move
r2q1b2/4N1BK/1nb1b1R1/pNr2NrB/3RBB2/4N1PN/nQ1Br3/5k1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b4 h5 g3 c5 b6 a5 b5 f3 b7 f6 g6 f2 b6 h4 d6 h3 d7 h2 Kf5 Bd6 e4+ Kb4 e5 c4 d5 c3 e6 c2 g7 Qc7 Kg6 f5 d8N f4 e7 f3 e8B Kb3 Nc6 Be7 d6 Nf6 g8N Nfd7 Na7 Qd8 Bd3 f1R Nh6 f2 Bd2 Re1 Be4 Kc4 Nf5 f1B Nc3 c1N Qe2+ Nd3 Rd1 Rg8+ Kh7 Bf8 Nh3 Nc6 b8N Rg6 b7 Bg2 Nd5 Rg5 Nb5 Nb6 d7 Nb4 Bh5 Na2 Nc6 Bf3 Qf2 Re2 b8B Bg2 Rhe1 h1R Bbf4 Bf3 Qg2 Nf2 Nce7 Rg1 Qh2 Nh1 Rf1 Bg2 Rf3 Rge1 Rd3 Rg1 Rb1 Rc1 Rd4+ Kc5 Nde3 Bf3 Bd3 Bc6 Be4 Rc2 Rd1 Rc3 Rd6 Kb4 Qf2 Kb3 Rg6 Rc5 Bb4 Kb2 Rd4 Kc1 Bc3 Qe8 d8B Be6 Bdc7 Qd8 Bce5 Rd2 Ng4 Kd1 Qh2 Ke1 Bg7 Kf1 Bb4 Rd3 Qb2 Re3 Bd2 Re2 Nge3+
b1bB1B1b/2QnN3/2B1BnK1/2r1bR2/4NN1P/2p1kq1r/4N2R/2q2NBn b - - 0 1 illegal: No possible last move
1Bnq2R1/B1bNq3/2Nk1n2/3rBK2/R2RPR1R/3rr3/n1p3b1/1QnB3B b - - 0 1 illegal: No possible last move
1b2rk2/2N2Nn1/1B3B1p/1qNR1R2/2B3P1/rNnb1n1b/1QN1Bq2/2K3bB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 c5 Kd2 a5 b4 f5 e4 h6 g4 a4 e5 c4 e6 a3 d6 a2 g6 f3 g7 f4 e7 f2 d7+ Kf7 e8B+ Ke7 b6 f3 d5 Nf6 g8B Ra3 b7 Rc3 b5 Qb6 d8B+ Kd6 Qe2 Nbd7 b8N Qa5 b6 Qa8 b7 Ra3 Na6 Qa7 b8N Ne5 Bb2 c3+ Kc1 c2 Nd7 Nh5 Ndc5 Ng7 Bc6 Bf5 Bb6 Ke7 Nd2 Bd3 Nc7 Qa6 Rb1 a1B Ndb3 Qb5 Bd4 Bc3 Rh5 Bb4 Qd2 Ba5 Be2 f1B Qb4 f2 Rf5 Bh3 Nf3 f1Q+ Ne1 Qf2 Ra1 Nf3 d6+ Kd8 d7 Bd6 Be5 Ke7 Bc4 Re8 Bf6+ Kf8 d8N Bh2 Nf7 Bg1 Qc3 Bb4 Qb2 Bc3 Ba8 Be5 N7a6 Bb8 Nc7 Nd4 Bh1 Nf3 Rb1 Ng5 Kd2 c1N Nc2 Na2 Rd1 Nc3 Kc1 Nf3 Rd2 Be4 Rd6 Bd3 Rdd5
Bq2q1Nn/2N2Bp1/3r1R2/1R1Nq1B1/Nn4QP/2qb1Bb1/2B1k2N/3r1b1K b - - 0 1 illegal: No possible last move, all moves rejected
kB1B4/1b1B1B1R/1qRn2p1/2bNB1n1/Kp2Q1qN/2r2r2/2RR1RqP/1r6 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kd7 Kd2 c5 Kc2 Kc7 Kb3 e5 a4 b5 f4 Kb7 f6 e4 a5 e3 f5 g6 a6+ Ka7 f7 e2 f6 e1Q h6 Be6 h7 Qd2 Bc4 Be7 f8B Qc7 d6 Qf2 d5 Bf5 d7 Qd6 d8R Qe5 f7 Qg2 d6 Nh6 d7 Qeg3+ Qd3 Nc6 Ra2 Be4 Bf4 Nf5 Be5 Nd6 Rc2 Qg4 Nc3 Rc8 Nd5 Ka8 a7 Rb8 Bfg7 Rf8 h8R Bf3 Rc8 Nd8 Rc6 Ne6 d8B Ng5 Rh7 Rc8 Qe4 Rc7 Kb2 b3 Ka3 b4+ Ka4 b2 Bf4 b1R Bge5 Rc8 Ba2 c4 Bb3 Rh8 f8R c3 Rd2 c2 Bc4 Be2 Nf3 c1Q Nh4 Bf3 Re1 Qb2 Rc1 Qd4 Rcc2 Qb6 Rf6 Rf8 Bb5 Kb7 a8B+ Ka7 Bb7 Rc7 Bc8 Ka8 Bc4 Rf7 Bd7 Bf8 Qd4 Be4 Bg3 Rc8 Rff2 Rf3 Nf6 Be7 Bf7 Bd5 Qe4 Rc7 R6c5 Bb7 Nd5 Bf8 Rb5 Rcc3 Rc5 Nc4 Rc7 Bc5 Rc6 Nd6 Bgf4 Nc8 Bb8 Nd6 Be5
NQb2N2/2N1P1b1/1R3R2/q6q/BBnn3k/pB4rB/Nr2p2B/1NKb1r2 b - - 0 1 illegal: No proof kernel
N2r4/R1N1P3/R1N2p2/B1q1b2Q/3p1NBn/3q1bnq/1N2BKb1/k2B1B1r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 b4 Ke7 g4 Ke6 e4 a5 c4 d5 g6 h5 b6 d3 b7 d4 c5 h4 c6 a4 g5 d2+ Kf2 f6 g7 h3 c7 h2 g6 a3 b5 a2 b6 Nd7 b8N Ra6 b7 Ba3 Ne2 Ra4 Na6 Nh6 g8B+ Nf7 b8N Rh4 g7 Nf8 Nbc3 Qd6 Nc6 Bb7 c8B+ Qd7 Bh7 Bd6 g8B Ng6 Ba3 Rh6 Bb4 Nh4 Ba5 Ra3 Rg1 h1B Rg7 Bg2 Na4 Rh3 Nb2 Rh1 Bg6 Rh8 Bh5 Bc7 Bh7 Nd6 B7g6 Re8 Bf3 Rd8 Bgh5 Ba8 Bfg4+ Ndf5 Bb7 Qe7 Nf4+ Kd7 e6+ Kd6 Bc8 Ng3 Bge2 Qd7 e7 Qh3 Bcg4 Bf3 Qa4 d1Q Qb5 Qd3 Rh7 Bb8 Nc7 Bg2 Qf5 Bb7 e5+ Kc5 e8N Bf3 Re1 a1Q Na8 Qaa3 e6+ Be5 Ra1 Kb5 Rd7 Qc5 e7 Bg2 Nd1 Kc4 Nb2+ Kb3 Nec7 Kc2 Ra4 Kb1 Bd1 Re8 Bge2 Rh8 Bhg4 Rd8 Qh5 Bf3 Bb4 Bg2 Ra6 Bf3 Ba5 Ka1 Nb8 Bbe4 Nc6 Bd5 Ne8 Bg2 Rda7 Bdf3 Nec7
1Nk3r1/2rP2NK/2b3r1/1pBN1Rq1/1B2BnNQ/1Nb1B2n/3pn1qR/4B3 b - - 0 1 illegal: No possible last move, all moves rejected
3N1N2/1RN1k3/p1B2n2/P2Bq1n1/KR3b1b/1RNRb3/bR1p4/rbN3rQ b - - 0 1 legal: proof: d4 c5 b4 f5 bxc5 e5 dxe5 h6 g4 Nf6 gxf5 Ng8 Bg5 hxg5 Kd2 b5 Kc3 d5 Kb3 a6 h4 b4 c4 g4 f4 g5 e4 d4 a4 g3 e6 g2 h5 d3 e7 g4 a5 d2 e5 g3 f6 Bg7 h6 Be6 f5 Kf7 e8B+ Kf8 f7 Qd6 h7 Bd5 c6 Qh6 c7 Qh2 c8R Nd7 e6 Ne7 Ra3 Nb6 Nc3 Be4 c5 Ra7 c6 Qh4 c7 Ra8 Rd8 Bd5+ Bc4 Qg5 c8R Bf6 Rh4 Nc6 Rb8 Ke7 f8N Nd7 Nge2 g1B Nc1 g2 Rb7 Nd4+ Ka4 Be3 Qh1 g1B Rb3 Bh2 Rg4 Rg8 h8N Bhf4 Nf7 Nf3 Rdb8 Qh5 Nd8 Bh4 Rg3 Ng5 f6+ Kd6 f7 Nf6 Rb2 b3 e7 Ra7 Rb4 Rc7 Bc6 Rb7 e8N+ Ke7 Nc7 Be6 Rb1 b2 B4d5 Rb6 Rb7 Rb5 Ra1 b1B Ra2 Rb6 Rab2 Qh8 Bg2 Bea2 Bgd5 Rg7 Rd4 Rb3 Rd3 Ra3+ Kb4 Ne6 Nd1 Rg8 Rdb3 Ba7 Rgd3 Bae3 Rb6 Kd6 Ng6 Nd7 f8R Qe5 Rf7 Nf6 Nf8 Rg1 Na8 Ng5 Rb8 Bh2 Ra7 Bhf4 Nc7 Ke7 Rb5 Bhg3 Rab7 Bh4 Rbc3 Bb3 Rc4 Ne6 Nc3 Ra1 Re4 B3a2 Ka4 Ng5 R5b3 Ne8 Red4 Nf6 Rdb4
RB4rq/3N1n2/1bNP1R1p/R4NNK/2k3B1/R2bn1p1/1nnb1Q2/3r2RN b - - 0 1 illegal: No proof kernel
8/2n1K3/kq2N2Q/2p1n1rB/2n3Bn/R1NN1rB1/p1NRBqP1/1bb1N2B b - - 0 1 illegal: Other
3KNN2/2pbrqn1/1R2R2p/b1B2n2/P2pB1Bk/2Q2bNB/2N1N3/q1r2B2 b - - 0 1 illegal: No proof kernel
BB6/r2RN1Kn/R2N4/1q5N/1Nb2Rp1/2n1P2p/2nbrQpR/1nRN1k2 b - - 0 1 illegal: No possible last move, all moves rejected
2NK3B/5bRB/1r1P2pN/b1pBp3/1Nrkn1r1/1B2QqN1/4R1B1/rN2n3 b - - 0 1 illegal: No proof kernel
2RB4/n1BpbbBN/1r1q1N2/4pN2/b2p4/Q5N1/Bk1NK1Pr/1b1B1R1n b - - 0 1 illegal: No proof kernel
N1Nbq3/p5kb/R5pR/2Qp1nnN/6nP/N1nBR3/rR3R2/r1BN3K b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 c4 e5 b4 d5 f4 g6 Kf2 e4 Kg2 e3 h6 e2 c5 d3 h7 d2 c6 Be7 c7 Na6 f6 Be6 c8N Bg4 b6 Nc5 b5 Qd7 b7 Bf5 b8N Be6 b6 Qb5 f5 Qe8 b7 Qb5 Ra6 Qa5 Nd7 Qb6 b8R Ne4 Nh3 Qb4 Qc2 d1N Nf2 Qc4 Rh3 e1N+ Kh1 Qa4 Rb2 Nf3 Qc5 Bd8 Na3 Nh2 Bd3 Ne7 Ndb6 Ndc3 Re3 Ng4 Nd1 Re8 h8R Rb8 Rh6 Ng5 Na8 Kg8 f7+ Kg7 f8R Bg8 Rff6 Bh7 Rf8 Rb4 Rff6 Qd7 Rf8 Ra4 Rf7+ Kh8 f6 Qe6 Rf8+ Qg8 f7 Nf5 Rf2 Ree4 Re8 Re5 f8N Kg7 Nd7 Qe6 Rh8 Qe8 Nf6 Re7 Rb2 Rb7 Rf2 Rb2 Rf8 Ra2 Rb2 Ra1 Rf7+ Kh8 Nh5 Kg8 Nb5 R4a2 Na3 Kh8 Rfb7 Kg8 Rf2 Kh8 Rbb2 Kg8 Nf4 Kg7 Nh5+
1Nkq1r1r/4Bp2/R6b/BNN2b2/2Bqq2Q/3pN1p1/K4PrR/1NB2B1n b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 c5 gxh5 d4 Ke2 Nd7 Ke1 Ndf6 d3 Nd5 exd5 c4 Bg5 cxd3 Bf4 Bb7 Bc1 Bc8 Kd2 Kd7 c4 a5 b4 g5 h4 e5 b6 g4 h6 e4 d6 a4 b7 a3 b8N+ Ke8 b5 a2 h5 Qc7 d7+ Kd8 b6 Qh2 b7 Kc7 d8B+ Kd6 h7 Ra6 h6 Qh5 c5+ Ke6 c6 Qh3 c7 Ra4 Nf3 Ra7 Qa4 Ra8 Na6 Nf6 b8N Qg2 Rh2 Nh5 Be7 e3+ Kd1 d2 Kc2 d1R Kb3 e2 Kb2 Bd7 c8B e1Q Qb4 d3 Nd4+ Kd5 Kb3 Ng3 Nc5 Qge4 Nb5 Bf5 Ba6 Nh1 Kb2 g3 Ka3 Qe6 Qh4 Qb6 Kb3 Qd8 Ka3 Rg8 h8B Qe4 h7 Bh6 Bc3 Rf8 h8N Re1 Ng6 Rh8 Bh3 Rg1 Ne5 Rg2 Ng4 Rf8 Ba5 Rh8 Nbd7 Kc6 Ne3 Rc8 N5c3 Rb8 Bc4 Rc8 Nb5 Rb8 Na4 Kb7 Nac5+ Kc8 Kb2 Rg1 Bf1 Rg2 Na3 Ra8 Nb8 Rf8 Rb1 a1Q+ Kb3 Qad4 Ra1 Ra6 Nb1 Rg6 Ra3 Rgg8 Ka2 Rh8 Be1 Qed5 Ra6 Q5e4 Ba5
7b/p1pb2p1/NQPqR2N/1q2qBNK/B1N2k1B/5r2/B2rBNq1/1n4R1 b - - 0 1 illegal: Other
2rBR3/1N1qQ1n1/K1N3bn/N5p1/5b1q/1NBpP2k/1p2rp2/N2RBBB1 b - - 0 1 illegal: No possible last move
1KBQb2n/2n1q1p1/P2R2R1/2BR1rN1/4B3/bRpp3p/qB2k3/Nr2B2R b - - 0 1 illegal: No proof kernel
R1N4r/4pBKn/Bp1R1NP1/1N1NN1p1/1qnp3B/3b4/1r1B3q/b3BkQ1 b - - 0 1 illegal: No proof kernel
7N/KRN1pp1r/3prk2/BB1N4/qBb2PR1/p2nQ3/qBB1nN2/n1N5 b - - 0 1 illegal: No extended proof kernel
qn4N1/N1Rqn2k/3B4/pn1Q2R1/3B3R/2N4q/1N1P1pnR/3K1BN1 b - - 0 1 legal: proof: c4 b5 b4 g5 f4 e5 a4 exf4 axb5 a5 b6 d5 cxd5 h5 b7 Nc6 b8B Ra7 b5 Ra6 bxa6 Rh6 g3 f5 Bb2 f3 Bc1 Bb7 axb7 g4 Bh3 f4 Bf1 Rg6 h3 Bh6 Qc2 f2+ Kd1 f3 Qa4 Bf4 gxf4 g3 Kc2 Rg4 hxg4 Qg5 Kb2 Kd7 Qd1 Ke8 Kc2 Qd8 e4 Kf7 f5 Kg7 f6+ Kh7 d6 h4 f7 h3 f8R g2 e5 h2 g5 Nh6 d7 Qe7 d8N Na7 e6 c5 g6+ Kg7 Nc3 c4 Rh8 Nb5 Bd6 Qf7 b8R Qd7 e7 Nf5 Rh4 Kg8 e8N Ne7 g7 Qh3 Rd4 Kh7 g8N Qd7 Rb7 Qh3 Ne4 c3 Bb2 Qd7 Kc1 c2 Rc7 Qh3 Nc3 Qd7 Nge2 g1N Nc6 Nh3 Ng1 Nf4 Na7 Ng2 Rg4 Nh4 Raa4 Ng2 Be2 f1Q Rg5 f2 Ba1 Qe1 Bf1 Qee6 Qf3 Qh6 Qd5 Qhh3 Kb2 c1N Kc2 Nd3 Kd1 Ne5 Bb2 Qhe6 Rh4+ Qh6 Bda3 N5c6 Nd6 Nb8 Nc4 Nf4 Bd6 Ng2 Nce2 Qh5 Bd4 Qh6 Nc3 Qh5+ Nge2 Qh6 Nb2 Qh5 Rg1 h1Q Rh2 Qh6 Rh4 Qhh3 Rh1 Qf3 R1h2 Qf8 Re4 Qhh3 Ng1 Qfc8 Rf4 Qb7 Rfg4 Qa8 Rh4+
2Rb2BB/N3kBn1/1bn1q1p1/6R1/Q2PnRqN/4Qr2/8/BK1B1B1r b - - 0 1 legal: proof: f4 b5 e4 f5 exf5 a5 a4 g5 fxg5 d5 axb5 a4 c4 Ra7 cxd5 Ra5 b3 Ra8 g4 a3 b6 Ra4 g6 Bh6 g5 Ba6 g7 Bb5 g6 Ra5 Qg4 Ba4 bxa4 Nf6 g8B Bf8 g7 Ra8 Qg6+ hxg6 Kd1 e5 Kc2 c5 d4 c4 h4 c3 h5 a2 b7 e4 h6 e3 d6 e2 a5 e1Q d7+ Ke7 a6 Nh5 a7 Qe3 h7 Nf4 f6+ Kd6 f7 Qe1 Nf3 Nh5 Nh4 Nc6 b8R Qe5 Rc8 Qef6 Bb2 Be7 f8Q Rb8 a8B Qe6 Na3 Qe8 d8Q+ Q8d7 Qde8 Rb3 Qf3 Bd8 Qe3 Bb6 Rg1 Qg4 Bd5 Qde6 g8B Ng7 Rd1 a1N+ Kb1 Nb4 Qb5 Nc6 Qa4 Ke7 Nb5 Ra3 Re1 Nb3 Na7 Nc5 Ba1 Ne4 Re2 Rb3+ Rb2 Ra3 Rf2 c2+ Kc1 Qe2 Rg5 Q2g4 Rf4 Rc3 Kb2 c1B+ Kb1 Ba3 Bf7 Bd8 Bb3 Bc5 Bd1 Bcb6 Bb7 Na5 Bd5 Nc6 Qg1 Rh3 Qe3 Rf8 h8B Rh1 Bg8 Rf6 Rf2 Rf3 Bf7 Rfh3 Rf4 Rf3 Bg8 Qf6 Bdf7 Qd6 Qc2 Qde6 Qa4
Q7/1BNR1R2/2bq1NK1/1Br4B/1N2n2N/Pn1q4/4rpRB/k2r1n1B b - - 0 1 legal: proof: c4 d5 cxd5 a5 d4 h5 g4 e5 gxh5 e4 b4 axb4 f3 Rh6 fxe4 Rh7 e5 Rh8 d6 c5 dxc5 Kd7 c6+ Ke8 c7 Bd7 c8B Be7 Qc2 Bg5 Qd1 Be3 Bd2 Bb6 Bc1 Bc7 dxc7 Kf8 Nd2 Ke7 Nb1 Ke8 Kd2 Ke7 Ke3 Ke6 Ke4 g5 h4 b5 h6 b3 h5 b4 h7 f6 a3 g4 h6 g3 Rh2 g2 Bf4 b2 Nh3 g1Q Nf2 b3 Ng4 Nc6 Nc3 b1N Na2 b2 Qa4 Nce7 Nb4 Qh1+ Rg2 Qg1 Bh2 Ra6 Bb7 Qf8 c8B Rc6 Qa8 Rc5 e3 Nf5 Bb5 Qe1 Kf4 Ng3 e4 f5 Kg5 f4 Kg6 f3 Nf6 Nd2 Rd1 b1R Bd5+ Ke7 e6 Kd6 e7 Ke5 e8B Kd4 e5 Kc3 e6 Kb2 e7 f2 Bcb7 Nb3 Be4 Bc6 Rd7 Qe3 Bf7 Ra1 e8N Qd4 Nc7 Rd1 Bf3 Qdd6 B7d5 Qc8 Bh5 Ka1 Ne6 Qe5 Rg1 Nf1 Bh1 Bf3 Rg2 Qc6 Nc7 Qc3 Qa5 Ne7+ Kg7 Bd5 Qa8 Nc8 Kg6 Re8 h8R Nd6 h7 Re2 Rf8 Ne4 Rff7 Qe6 h8N Qc4 Kh6 Bc6 Ng6 Qd3 Nh4 Qed6 Kg6
Nr6/1Q2B2Q/2B1b2B/1n6/pq1RB1B1/1b1B1bbR/1PkN1bn1/4QK2 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 g5 cxd5 a5 hxg5 e5 a4 exf4 axb5 Ra6 bxa6 Bh6 Nc3 Bg7 Nb1 Bf8 e4 Ke7 g4 Kd6 d4 f5 a7 h5 a8B c5 g6 h4 g7 a4 g5 h3 g6 f3 Nc3 c4 Bh6 Ne7 g8Q f4 g7 h2 Qh7 Qa5 g8B Na6 Be6 Nc7 Bg4 f2+ Ke2 Rg8 Qe1 Qb4 Rd1 Ng6 Nf3 Nb5 Rd3 Bd7 Nd2 Nh4 Bb7 Ng2 Ba8 Bg7 e5+ Ke7 e6 Kd6 e7 Be5 e8B Be6 Bg6 Rf8 Be4 Rb8 Nd1 c3 Ne3 c2 Bb7 Bf6 Ba8 Bh4 Bb7 Bf7 Ba8 Bg3 Nec4+ Ke7 d6+ Kf6 d7 Be6 d5 c1B Nb6 Ke5 d6 Bb3 Nb1 Be3 d8Q Be6 d7 f3+ Kd1 Bc5 Qc8 Bd4 d8B Bc5 Rc3 Kd4 Be7 Bb3+ Rc2 Be6 Bc4 f1Q Bac6 f2 Na8 Bb6 Qb7 Qe2+ Kc1 f1B Nd2 Qe3 Kd1 Ba7 Ba2 Bfc4 Bb3 Bcd5 Bc4 Bb6 Bf1 Bb3 Bc4 Qec3 Ke2 Qe3+ Kf1 Ba7 Bef3 Qe4 B4d5 Kd3 Rc4 Baf2 Rd4+ Kc2 Be2 Qd3 Be4 Nf4 Rg1 h1B Rg2 Nh5 Rh2 Bf3 Rh4 Nf4 Rh3 Ng2 B2xd3+
2KR4/Rp1Q2Bk/N4N2/3b1Nq1/2n1R2P/B2p1bR1/1R2R3/Qb1q2nn b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 c6 b4 Qc7 bxa5 Qb6 d4 Qc7 c5 Qd8 Bb5 cxb5 c6 Ra6 c7 Rc6 g3 g5 Ba3 h5 Qd2 g4 Qc1 h4 Qd1 Rc5 dxc5 Bg7 Bc1 Be5 Qc2 h3 Qd1 Rh4 gxh4 g3 Nd2 g2 Nb1 Bg3 hxg3 Kf8 Bh6+ Kf7 Bc1 Ke8 Kd2 Kf8 Kd3 Kg7 Kd4 e5+ Kd5 h2 Kd6 b4 a4 b3 f4 b2 a6 e4 c6 e3 g4 e2 f6+ Kh6 f7 e1Q f8R Kh7 a5 Kg6 f5+ Kg7 a7 Kh7 a8Q Qc3 a6 Qa5 f6 Qf5 f7 Qh5 g5 Qg4 a7 Qe4 g6+ Kg7 Nf3 g1N Re8 Kh8 f8B Qg5 g7+ Kh7 Nd4 Nf6 g8R Qee3 Re4 Nd5 Nd2 b1B Bg7 Na6 Ba3 Qf3 Nf5 Ne2 Re1 Nc1 R1e2 h1B Ra2 Qgg4 Rb2 Nc5 Nb3 N5d3 Nc5 Qgg2 Na6 Ne3 Ke7 d5 Kd8 Be6 c8N d4 c7 Nc4 Nce7 Bf7 c8R Nf2 Nd5 Qg5+ Kd7 Bg2 Rcd8 Nh1 Kc8 d3 Qa4 Qfg4 Qd7 Bf3 Nf6+ Kg6 Qb8 Bd5 a8R Qg1 Qe5 Qd1 Rec2 Ne2 Ra7 Ng1 Rg2 Qb3 Rbe2 Qd1 Qa1 Bc6 Rg3 Bd5 Rge8 Qg4 Rb2 Qg5 Nh5 Kh7 Ree2 Qf6 R8e4 Qg5 Nf6+
1BN2QkN/b1Q1BR2/1r1p2Nr/N2b3b/1NrRn3/3K2N1/r2R2pP/8 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 d4 c5 dxc5 f5 a4 f4 axb5 Nc6 Bg2 Nd4 Bh3 Nf5 gxf5 Be7 Bg4 hxg4 Kd2 Bd6 Ke1 Bf8 Kd2 Kf7 c4 a5 e4 g5 b4 a4 b6 f3 c6 f2 b7 f1B b8B a3 b5 a2 c5 g3 e6+ Kg7 f6+ Kh7 e5 g4 c7 g2 c6 g3 f7 Bc4 e7 Bb7 c8N Ra3 e8N Re3 e6 Bd6 f8N+ Kh6 b6 Qf6 e7 Ba8 c7 Qg6 b7 Bd3 Ne2 g1R Na3 g2 Nc4 Bc5 Ng3 Qg4 Ng6 Kh7 Na5 Bf1 Ba3 Rc3 Ned6 Bb4 e8R Bc5 Re4 Ba7 Nf7 Rc4 Rd4 Be2 Be7 Nf6 Qc1 Bd1 Kd3 d6 Qg5 Re1 Rf1 Qf4 Qh4+ Bh5 Rd1 a1R Rd2 Kg8 Rff2 Rh7 Nfh8 Qh6 Qg5 Ne4 Rf7 Red1 Nb6 Raa4 c8N Ra2 Nd5 Qf8 Nb4 Rh6 Qc5 Rb1 Qc7 Bc5 Ba7 Bb6 b8Q Bd5 Qd8 Bc5 Qbc7 Bb6 Bb8 Ba7 Nc2 Rb7 Nb4 Rb6 Qxf8#
3NB2R/KN2pB2/pr5R/1kN2b1q/2nn3R/R2P4/2pQ1n1B/Nn5R b - - 0 1 legal: proof: b4 b5 a4 f5 axb5 g5 e4 d5 exf5 a6 h4 gxh4 c4 Kf7 cxd5 Ke8 Nh3 Ra7 Ng1 Rb7 Ra4 Rb6 Ra2 Qd6 Ra1 Qd8 Ba3 Rc6 Qc1 Rc2 Qd1 Ra2 Bc1 Ra5 bxa5 Bh6 b6 Be3 b7 Bb6 axb6 Qd7 Nc3 Qd6 Nb1 Qd8 Ke2 Kd7 Ke3 c5 f4 h5 g4 c4 Kd4 h3 Kc5 h4 g5 h2 d6 c3 f6 c2 f7 h3 f8R Rh4 f5 Nc6 b8R Qe8 f6 Qf7 b7 Nh6 Kb6 Ra4 g6 Rg4 g7 Rc4 g8B Ne5 Nc3 Qh7 f7 Rc7 Ne4 Qh8 Ne2 Rc4 Nd4 Rc6+ Ka7 Nf5 Ra3 Ng3 Nb3 Rc4 Na1 Kc6 d7 Rc5 d8N+ Kd5 Bb5 Nf1 d3 Rc6 Bf4 Rb6 Nd6 Kc5 Qd2 Nc4 Be8 Qh5 Ra8 Be6 b8R Bd7 N6b7+ Kb5 Rg1 h1N Bh2 Nhg3 Rh1 Ne2 Rc8 Rf6 Rc6 Nd4 Re6 Rh6 Re4 Rb6 Rh4 Qg5 Rc8 Qh5 Rc6 Bf5 Rh6+ Rc6 Qe1 Nfd2 Qc1 Nb1 Qd2 Ne6 Bh7 Nd4 Rh8 Na5 f8N Nc4 Nd7 Rb6 Be5 h2 Bhg6 Na5 Bgf7 Nc4 Rg1 h1N Bh2 Nf2 Rh1 Bg4 Ndc5+ Bd7 Rc6 Bf5 Rch6+
4R3/qQQRB1N1/4B3/4Bnn1/2k1NrB1/q1P5/n1rr1BbQ/K1b1q1B1 b - - 0 1 illegal: No possible last move
nQN1RK2/1PR2N2/rR3q1B/1NBq4/3b2BR/1kNRr3/r1nb4/1n1q4 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 Ke6 c5 Kf7 a5 d4 e5 g6 h5 g7 a4 d6 e4 b6 e3 b7 h4 d5 c4 d7 f3 f6 a3 g5 e2 d6 e1Q g6 a2 Be2 h3 Bh6 h2 Qb3+ Ka5 Nc3 f2 Nf3 f1R Rc1 a1N Nd4 Qb6 d8R Rf3 d7 Nc2 Ndb5 Ne7 g8N Re3 g7 Qd1 Bg4 Nd5 Ne7 Ra6 g8R Bg7 Rge8 Qd6 Nc8 Qc6 Rf1 h1Q Rf4 Rh7 Kg8 Qd6 f7 Bd4 f8B Qf6 Bc5 Qh5 Ne2 Nc3 Rfe4 Nb1 Nec3 Rf7 Rf4 Qd5 Rfe4 Nc6 b8R Na7 Rb6 Rh7+ R8e6 Rf7 Rde8 Re7 d8N Rb7 Nf7 Rb8 Nc7 Nb5 Kf8 Rba8 Red6 R8a7 Bf5 Ra8 Rh4 R8a7 Bg4 Ra8 Ne6 Nc7 Rdd8 R8a7 Rd7 Na8 Nc7 Rf3 N7b5 Re3 Na2 c3 Rc7 Qd3 Rd1 Qdf1 Rd3 Qfh1 Qc4 Qd1 b4+ Ka4 Kg8 Na1 Kf8 c2 Qc3 c1B Qb2 Qde6 Qh2 Bd2 Nac3+ Kb3 Na3 Qff1 b5 Qe5 Rbc6 Rb6 Rb7 Qef5 Qb8 Qd5 Rbc7 Nc2 Rce6 Rd6 b6 Qf6 Nab5 Ra2 b7 Rda6 Rb6
rBN1r2R/R3n1r1/q4n2/B2B3k/RnPQ4/1R5r/Q3bN2/b1K1RR1r b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Kd2 Kf7 f4 d5 h4 g5 c4 e5 h6 e4 f6 Kg6 h7 g4 f7 g3 a6 d3 h5+ Kh6 b6 g2 a7 d4 f5 Bb4+ Nc3 Qd7 f8R Qb7 f6 Qc7 b7 Nd7 b8B Qb6 f7 Bc5 Nh3 g1R Nf2 Rg7 Qe2 Ne7 Bg2 Nf6 Nb5 Bg4 Ra4 Qa6 Re1 e3+ Kd1 d2 Bd5 Ba3 Nd6 Bb2 Nc8 Ba1 Re8 Kg5 h6 Kh5 f8R Bf3 Kc2 d1N Bd2 d3+ Kc1 Nb2 Ba5 Bg4 Qc2 e2 Qb3 Bf3 Qa2 Bg4 Rd8 Bf3 Rd7 Bg4 Rb7 d2+ Kc2 d1R Rb3 Rd3 Kc1 Rh3 Rf7 Re8 h8Q Bf3 h7 Nd3+ Kc2 Nb4+ Kc1 Rgg8 Rf8 Bg4 Qg7 Bf3 Qg1 Rg7 Qg4+ Kh6 Qd4 Bg4 h8R+ Kg6 Rd1 e1R Rf7 Reh1 Rf1 Nf5 Re7 Bh5 Re5 Ne7 Ree1 Be2 Be5 Rb8 a8R Kg5 Ra7 Ra8 Bb8 Kg6 Rf8 Kh5 Rh8+
2NB3R/1knQ2NB/Bb1rR3/B1n3K1/3b1r2/4Prb1/Rq1B2nR/6nN b - - 0 1 legal: proof: c4 b5 g4 e5 f4 d5 cxd5 g5 a4 Bf5 axb5 Bg6 h3 f5 Ra3 exf4 Ra1 Bh5 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Kf7 Qc2 Ke7 Qd1 Ke8 b4 Kd7 d4 Kc8 Kd2 a5 g5 c5 b6 h5 g6 h4 b7+ Kc7 f6 a4 g7 h3 d6+ Kb6 d5 g2 d7 h2 d6 c4 b5 a3 f7 a2 Nc3 f3 Ke3 f2 Kf4 Na6 b8R+ Ka7 Na4 c3 Nh3 g1N Rb6 c2 Bd2 Nf6 g8B c1B Kg5 Qb8 d8B Ne8 d7 Rh6 Re6 Bd6 f8N Bg3 b6+ Kb7 Bh7 Nc5 Bc7 Bb2 d8B Bd4 e3 Rh4 Bc2 Ra6 Bh7 Rf4 Be2 f1R Nf2 Ka8 b7+ Ka7 Ne4 R1f3 Bca5 Nc7 Nf2 Rb6 Ba6 Rd6 Rc1 a1B Nb6 Bab2 Qa4 Bbc3 Rc2 Bb2 Qd7 Ba3 Bac3 Bb4 Ra2 Ba5 Nd5 Bb6 Ba5 Nd3 Ne7 Ne1 Bad3 Ng2 Ba6 Qa8 b8R Qd5+ Re5 Qb3 Ne6 Qb2 Rc8 Qc3 Ng7 Qb2 Bc4 Kb7 Re6 Ne2 Ra8 Ng1 Nc8 Ne2 Re1 Ng1 Re2 h1N Bcd3 Bh2 Bc4 Ng3 Nh1 Ne4+ Kh5 Nf2 Kg5 Bg3 Bb5 Nd3 Rf2 Nh4 Rh2 Ng2 Na7 Rf7 Be7 Bc3 Rh8 Nc5 Bd8 R7f4 Nc8 Bd4 Ba6+
Rbqq3R/3Bk2r/qQ2B2n/1P1Q4/1qNq1Q1B/nB4Nr/2B3KB/2b5 b - - 0 1 illegal: No possible last move
3Q1q2/2B3Rr/N4Rn1/2Bb2B1/1nbKQ2b/k1r2N1q/b1BBP3/2Q1Br2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Kd7 d4 Kd6 h4 g5 h6 c5 a6 f5 a7 f3 Ke3 f2 h5 c4 b6 g4 b7 g3 h7 c3 h6 c2 Nc3 g2 Bd2 c1R Ra6+ Nc6 b8B+ Qc7 Na2 Be7 Nb4 Bh4 Nf3 g1Q Bh3 Qg4 Rg1 f1B Bg2 Rb1 Qc1 Qh3 Rb6 Bd7 Na6 Ne7 Kd3 Rc8 h8B f4 h7 Ng6 Bf6 Ra1 h8B Be6 Bg5 Bg8 Bh1 Bg2 Bg7 Rb1 Be1 Bf7 B7h6 Rh8 Kc3 Rh7 Kd3 Rb3+ Ke4 Rc3 Be7+ Kd7 d6 Qc8 d5 Qf8 Bc7 Nb4 Kd4 Rc8 a8Q Rb8 Nh2 f3 Bhd2 f2 Nf3 f1B Beg5 Re8 Rc6 Re6 Bb6 Rf6 Bc5 Qg3 Rb6 Bh3 Bg2 Bhe6 Bh3 Qh2 Bf5 Qh3 Bc2 Bg2 Rc6 Bf5 Rb6 Bd3 Rc6 Bc4 Qb7+ Ke8 d7+ Kd8 Rd6 Ke7 d8B+ Ke8 Bc7 Ke7 Rc6+ Kd7 Nh2 Rf1 d6 Bgd5 Nf3 Ba2 Rb6 Bdc4 Qe4 Bfd5 Rb8 Kc6 d7 Qf7 d8Q Qf8 Ra8 Kb5 Rg4 Bcb3 Ra7 Ka4 Rf4 Bc4 Rf6 Bd5 Bcf4 Bc4 Rg7 Bd5 Qb1 Ka3 Bc7 Bbc4 Qc1#
k4b1R/1r2NrQ1/nq2Q1NB/P1q3N1/q1N2N2/B5rB/1r1RNn1b/5K2 b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 a4 Kd7 d4 Kc8 g7 h5 g6 b5 f6 Kb7 a5 e5 g5 c5 d6 e4 d7 c4 f7 b3 d5 h4 d6 b2 Ra2 e3 Qh5 h3 Ke2 b4 Qh6 c3 Nd2 b1R Nc4 h2 Ba3 c2 Bh3 c1Q Rd2 Nf6 g8N b3 g7 b2 g6 Ra7 Ne7 Ne4 g8N Ka8 g7 Na6 Ng6 Qb6 d8N Nf2 N8e7 Rg8 d7 Qc2 Nf4 Qa4 Qe6 Rb7 Ndc6 Rf1 d8N b1R N6e5 Rb2 N5g6 Qc5 Nf3 Qb6 Ndc6 Qc5 Ncd4 Qb6 Rg1 h1Q Ng5 Qhc6 Rh1 Qcc5 Rh2 Rg1 Rh1 Rg3 Kf1 Rh8 g8Q Rh7 Bg2 Rg7 Rh8 Rh7 Qg7 e2+ Kg1 e1B Nde2 Rh2 Kf1 Rh7 Rc2 Bc3 Rd2 Be5 Bh3 Bb8 Qd4 Bh6 f8B Rf7 Qde4 Bd6 Qg2 Bg7 Nc6 Bge5 Bh6+ Bf8 Nce7 Rd3 Nfd5 Bh2 Ndf4 Rg3 Qg1 Ng4 Qd4 Nf2 Qg7
4N1bR/2qR3n/2B1P1N1/n1Rb1k2/N7/K1B1nBrr/2bQ1N2/bqB3B1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 h4 Kd7 d4 c5 Kd2 g5 Kc2 f5 Kb3 g4 e4 f3 h6 g3 h7 f2 e5 f4 h5 f3 d6 Ke6 b6 g2 h6 c4+ Ka3 c3 a6 c2 b7 Nf6 d5+ Kf5 a7 Ng4 e6 Qh4 Nh3 g1Q Qd2 Bg7 d7 Nf6 d8B Nc6 b8N Nb4 d6 Qc4 d7 Qc7 Nc3 Bb7 Be2 f1B Nf2 Nbd5 Na6 Ne3 Na4 Bd5 Rh2 Rg8 h8N Nh7 Ng6 Bf6 Bb5 Bd3 Bc6 Qd1 Rb1 Ba1 Rb5 Rh8 Bf6 Rag8 d8B Qh1 a8B Be4 Bcb2 c1N Bfc3 Nb3 Bc1 Na5 Rc5 Bc2 Bdf6 Qf1 Bfd4 Qb5 Rh1 Qb1 Rd1 Rg7 Nf4 Rg3 Ng6 Qd7 Nc7 Qd6 Nh1 f2 Ne8 f1B Nf2 Qc7 Bab7 Bfd3 Ba8 Rg8 Bab7 Rh3 Ba8 Ng5 h7 Rg7 h8R Nh7 Be5 B3e4 Bh2 Rg8 Ne5 Rgg3 Bg1 Bf3 Ng6 Bh5 Ne5 Bf7 Bab7 Bdb3 Bf3 Ba2 Ng6+ Bd5 Bc6 Bg8 Re1 Nf1 Re4 Ne3 Rb4 Qb8 Rb7 Qa7 Rg7 Qc7 Rd7
1B1Q1r2/1kq1B3/R5K1/rB3Q2/P4B1N/1rr1q3/2RBb1N1/BrNb2br b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 g3 h4 Bh6 e5 Kd7 f6 Bf8 f5 Nc6 f7 Nf6 exf6 Nd4 Na3 Ne6 Nb1 Ng5 hxg5 Ra5 Be2 Ra3 Bf1 Ra8 Ke2 c5 Kd3 Kc7 Ke4 e5 d4 b5 d6+ Kb8 d7 h5 g6 g2 d5 b3 g7 b4 g8N h4 d6 c4 Qc2 h3 Rh2 c3 Na3 b2 Ne2 b1B Bd2 g1R Nc4 b3 Nc1 b2 Ne7 Rh1 Ne3 Ra5 Ng2 Rh7 Bb5 Ka8 Ng6 Qc7 d8Q Rh8 d7 Kb7 N6h4 Bc5 f8B Bg1 Be7 Rf8 a3 Ba2 f7 b1R f6 Rb3 Kf5 e4 Kg6 e3 Qf5 e2 Bd6 e1Q B6f4 Bb1 Ra2 c2 a4 Re8 f8B Qe3 Bg7 Rf8 Rb2 Ba2 f7 Bb1 Bd4 Ba2 Ba7 Bb1 Bb8 Ba2 Nd3 c1R Rc2 Bb1 Rc6 Rcc3 Nc1 Bc2 Re6 Bd1 Ra6 Re8 f8B Be2 Bb4 Rf8 Be7 Bd1 Ne1 Be2 Rf2 h2 Neg2 Bd1 Qe8 Be2 d8B Be6 Bf6 Bd1 Bde7 Bc4 Qd8 Bce2 Rf3 Bf2 Bd4 Re1 Bde5 Bg1 Rf2 h1R Bh8 Rc2 Bb2 Rcc3 Ba1 Bc2 Nd3 Reb1 Nc1 Bcd1 Be1 Bf1 Rc2 Bfe2 Bd2
Q2Rr1n1/2N2RR1/2Q1p1R1/QRqrn3/RbbrN2K/4b3/3BP2n/3B1k2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 c4 d5 cxd5 g5 f4 Bd7 fxg5 Bc8 a4 axb4 axb5 Ra5 Bg2 Ra6 Bf1 Ra8 Kf2 Kd7 Kg3 Kd6 d4 f5 h4 c5 g6 e6 g7 b3 b6 c4 b7 b2 h6 c3 h5 c2 h7 Ra5 h6 Ne7 g8R f4+ Kh4 f3 Bg2 f2 Rg6 f1R Ra4 Ra8 Nd2 b1N Ne4+ Kd7 d6 Kc6 d7 Kd5 Bd2 c1B Nh3 Ra6 Qc2 Re1 Rg1 Nbc6 b8R Rg8 h8Q Ra5 h7 Qb6 d8R+ Bd7 Bh1 Qc5 Rb5 Ne5 Rf1 Rd1 Rf7 Ba3 Bg2 Bb4 Bf3 Bh6 Nf4+ Kc6 Qc3 Re8 Nd5 Be3 Nc7 Ng8 Bg4 Bc8 Bf5 Ba6 Rfg7 Ng4 Rdd7 Na3 Rdf7 Nc4 Qc1 Nce5 Qc4 N8f6 Qg8 Nh2 h8Q Rc8 Qh5 Re8 Ng5 Kd6 Bc2 Kc6 Qgh8 Ng8 d5+ Kd6 Bc3 Rd3 Bd1 Rd2 Qe4 Rd3 Bd2 Rd4 Rb8 Bc4 Rb5 Neg4 Qh1 Ke5 d6 Rd8 d7 Re8 Re7 Kf4 d8R Ne5 Ne4 Qa7 Rb7 Rad5 Rb5 Qc5 Ref7+ Nf6 Be1 Rd6 Rfd7 Qc6 Nc3 Nf7 Rda8 Rb8 Rbg5 Qb6 Qd8 Ng8 Bd2 Qc6 Qc8 Qb5 Qcb7 Re8 Qhc6 Qb6 Rc5 Qb5 Qhd5 Ne5 Rad8 Qb6 Rca5 Qa7 Qdb5 R6d5 Qa8 Qb6 Ne4 Qc5 Bc3 Bg1 Rdf7+ Ke3 Qba6 Bf2+ Kg5 Bg1 Rb5 Bf2 Qa5 Bg1 Nf6 Kf2 Bd2 Kf1 Ne4+ Bf2 Rfd7 Bg1 Kh4 Be3 Rdf7+
nbR1N3/2R1nB1R/r1r2NB1/1RBq2n1/1K1Q2q1/2NkPq2/1p6/3Bb1B1 b - - 0 1 illegal: No possible last move
R3b2r/1B2NBN1/nQbk2Qn/5Qpr/7B/PK3B2/1R2B1q1/q2Bb2q b - - 0 1 legal: proof: d4 a5 h4 e5 g4 g5 b4 axb4 f4 c5 fxe5 f5 dxc5 Be7 gxf5 Qb6 h5 Qg6 hxg6 Bf8 Kd2 Ke7 e4 d5 c4 b5 Kc2 h5 c6 h4 f6+ Ke6 f7 h3 c5 h2 g7 d4 c7 d3+ Kb3 d2 c6 Ra7 Nc3 Na6 Nge2 Rh3 Nd4+ Ke7 e6 Rh4 e5 Rh5 Be2 Nh6 g8B Ng4 Qg1 Bd7 c8B Rh6 c7 Rh4 Bb7 Nb8 c8B Ra6 Bbf3 Rb6 Bcb7 Bc6 a3 Nh6 Ra2 Rh5 Rb2 Na6 Nf5+ Kd8 e7+ Kc7 e8Q d1Q+ Ka2 Bc5 f8Q Qf1 e6 Bf2 e7 Be1 Bf7 Qg2 Ng7 Kd6 Bd2 b3+ Kb1 b4 Nd5 Rb5 Qb6 Rc5 Be3 Rc4 Bf2 Rch4 Rf1 Rh3 Bh4 h1Q Kc1 Bg3 Kd2 Be1+ Kd3 Rh2 Kc4 Rh3 Be6 Rh2 Qf5 Rh3 Qeg6 Rh2 Rd2 b2 e8B b1B Rb2 b3 B8f7 Bc2 Ne7 Rh3 Rb1 b2 Bd1 Bd3+ Kb3 Bb5 Rf2 Rh2 Rc1 b1Q+ Rb2 Qa1 Rc4 Rh3 Ra4 Nb4 Ra8 Na6 Qg1 Be8 Qb6+ Bbc6 Qh7 Ng4 Bc4 Rh2 Qg8 Rh8 Bce2 Nh6 Bf2 Rh5 Bh4 Qhf1 Qgh7 Qfh1 Qhg6+
K2Q3k/n3QR1R/2pNB2n/4RnqB/1Q1q3P/r3b3/4br2/1Q1QNbQ1 b - - 0 1 illegal: No possible last move
1Nk3r1/1b1nRn1N/1p1r3R/3R2RK/q6b/B2rRQ2/b1P2B1q/1R2QB2 b - - 0 1 legal: proof: d4 c5 dxc5 Nh6 b4 Qa5 e4 Qd8 b5 Ng8 b6 axb6 a4 f5 exf5 Nc6 a5 Nb8 g4 h5 gxh5 Nh6 a6 Ng8 axb7 Rh7 Nf3 Rh6 Ng1 Rh8 Ke2 e5 Kf3 g5 Kg4 d5 h4 Kd7 f4 e4 h6 e3 h7 e2 c6+ Kc7 h5 e1Q h6 d4 Nd2 d3 Ra3 Qde7 Ne4 d2 Nh3 Qg7 Nc5 Na6 b8B+ Kd8 c7+ Ke8 Nd7 Qf2 f6 Bb7 c8R+ Kf7 f5 Be7 Kh5 g4 Rc5 Ke8 f7+ Kd8 f6 g3 Rd5 g2 Qe1 g1R Bg3 Qg2 Ng5 Kc8 Re3 Nb8 Bf2 Ra3 f8R+ Bd8 f7 Qa1 Bb2 Rd3 Rfe8 Qa4 f8Q d1B+ Qf3 Be2 R8e7 Qg3 Ba3 Qh2+ Nh3 Rg2 Rg1 Rg6 Rgg5 Nc6 Nb8 Ne5 Rb5 Nf7 Rb1 Rgd6 Rd5 Qg3 Ng5 Nf6+ Kg6 Ne4+ Kh5 Rg8 h8R Nc5 Nh7 Nd7 Rg5 R3d4 Rd5 Bc4 Rg5 Rd3 Rd5 Rf8 Rg8 Ba2 Rgg5 Re8 Nf8 Qg2 h7 Qg1 h8R Qh1+ Bh4 Qh2 Nh7 Rg8 R7e6 Qg1 Bf2 Bf6 Re7 Qg2 Rge5 Bh4 Rg5 Qg3 Nf8 Qg2 Rh6 Qh2 Nh7
3q2B1/1Rb2P2/2R1B2K/QNRBr2Q/1R3r2/1n1b1p1n/1R4q1/n2kRNb1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 hxg5 Nf6 c4 Ng8 cxd5 Ba6 Rh6 Bb7 Rh1 Bc8 exf5 e5 f4 Bd7 f6 Be6 f5 Bc8 b3 Kd7 Ba3 Ke8 Bc5 Be6 Be3 Bc8 Bf4 exf4 Kf2 Kf7 Kf3 h5 g4 c5 d4 a5 b4 a4 b6 c4 b7 h4 d6 c3 b5 c2 d7 c1B d5 a3 d6 h3 b6 a2 Nc3 h2 Rb1 a1N Bh3 Qc7 d8Q Be7 d7 Bea3 Nge2 Bf8 Rb4 Bg7 Ng3 Bh6 Re1 Ra3 Nf1 Ra4 Nb5 Nc6 b8R Nc2 b7 h1Q+ Bg2 Qd6 Qa5 Be3 d8R Bg1 Qe2 Qc7 Rd5 Nge7 Rc5 Re8 Ke4 Na1 g6+ Kg8 g7 Kh7 f7 Qd8 f8R Ng6+ Kf3 Re5 f6 Bf5 g5 Bd3 Kg4 Nd4 Bd5 Qg2+ Kh5 Ndb3 Qg4 f3 g8B+ Kh8 Bgf7+ Kh7 Bfe6 Bg7 f7 Nf4+ Kh4 Bh6 Qh5 Nh3 Rbc8 Kg7 b8R Kh7 Rb7 Kg7 Qg4 Kg6 R8c6 Bg7 Re8 Bf8 Re2 Bd6 Rb2 Bc7 Re7 Kg7 g6 Kf6 Re4 Rc4 g7 Rd4 Re1 Rf4 g8B Rg5 Rec1 Ke5 R1c4 Rgf5 Rb4 Rg5 Bc4+ Ke4 Re8 Re5+ Re7 Ng5 Kh5 Nh3+ Kg6 Rf5 Kh6 Re5 Na7 Kd4 Qh5 Kc3 Bcd5+ Rc4 Rb1 Kc2 Rb2+ Kd1 Nb5 Rf4 Bg4 Ref5 Re3 Rg5 Bge6 Re5 Re1+
Q3nQb1/6RB/5R1r/kp2Kn1N/rq5r/PQ1RNQr1/4Q1r1/1Q1B3b b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 bxa3 Na6 a4 Nb8 a5 Be6 Be2 Bh3 Bf1 Bc8 h4 Nh6 g4 Na6 f5 Rg8 Ba3 Kd7 Bd6 Rh8 Bf4 gxf4 g5 Nb8 g6 Ke8 Qg4 Ng8 Qe2 Bh6 Qd1 Bg5 hxg5 Ra7 Qc1 Ra6 Qd1 Ra8 Ke2 Kd7 Kf3 e5 Ke4 b5 d4 h5 d6 Kc6 d5+ Kc5 a3 f3 a6 Kb6 d7 c5 g7 c4 f7 f2 f8Q c3 g6 c2 f6 c1R d6 h4 f7 h3 a7 h2 Ne2 Qh4+ Nf4 Qg3 d8Q+ Ka6 d7 Qb3 Be2 f1R Nc3 Rh4 Qde8 Rc2 d8R Nc6 Rd3 Be6 Rg1 Nce7 Nd5 Nf5 Ne3 Ka5 Qb1 Rf3 Bd1 h1B Rg3 Rh6 Nh5 Rg2 Ra2 Bc4 Rf2 Qb4 Rg4 Rfg3 Rf3 Nge7 g8Q Ng7 Rf6 Nef5 Qe6 Ne8 g7 Ba2+ Qc4 Bb3 Kd5 e4 Ke5 Ba2 Qcc2 Bd5 Qcb3 Bc4 Qh7 Be6 g8B Bd5 Rg7 Bc4 Nc2 e3 Q1a2 e2 Ne3 e1R Qe2 Rf1 Qg6 Rf4 Bh7 Nh4 Qe4 Nf5 Q4f3 Rfg4 Qc5 Rh4 f8Q Bg8 Qcc2 Rc8 Qcb1 Rcc4 Rgg6 Qd2 Rg5 Ra4 Rg7 Qb4 a8Q#
KBnR2r1/n4R1N/RBQRRP2/5r2/1N2npQ1/n4k2/b6R/n1b2qB1 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 h5 cxd5 b4 gxh5 b3 axb3 Rh6 b4 Rh7 b5 Rh8 e5 f6 exf6 e6 f7+ Kd7 f4 Nf6 f5 Ne4 Bd3 Nf6 Be4 Ng8 f6 Rh6 Bc2 Rh8 Bf5 exf5 Ke2 Kd6 Kd3 Ke5 Kc4 Ke4 h4 a5 d4 g5 b4 c5 b6 a4 Kb5 c4 b7 c3 d6 c2 d5 f4 d7 g4 d6 a3 h6 a2 h5 g3 h7 g2 h6 Ra7 Na3 Na6 Kc6 Be7 b8R Nc5 f8R Qe8 b5 Na6 b6 Nc7 b7 Nd5 Rh2 Ra8 Rf7 Ra5 Nf3 g1N Be3 c1N Nc2 Nce2 Nb4 Nh3 Bg1 Nf2 Ng5+ Ke3 Ra8 Ndc3 b8B Nb5 Ra6 Nec3 Qg4 Na3 Rd1 a1N Kb6 Bf8 Ka7 Ncb5+ Ka8 Na7 d8B Be6 d7 Rf5 Rdd6 Ba2 Bdc7 Qe5 d8R Ne7 Bb6+ Qc5 Re8 Rg8 h8Q Qd4 Red8 Nec8 Nh7 Ke4 Qhg7 Qd3 Q7g5 Qf1 Q5h5 Ra5 Qc5 Rb5 Qc6+ Rd5 Qg5 Kf3 Re6 Bc5 Rdd6 Ne4 Qg7 Rf5 Qg6 Qf2 Qg4+ Ke3 Kb7 Rg6 Ng5 Bd4 Ka8 Rg7 h7 Rg8 Rfd7 Bc5 Rd8 Bd4 h8R Bc5 Qg3+ Ke2 R8h5 Be3 Rh7 Bc1 Rf7 Qg2 Qh4 Qf2 Nh7 Kf3 Qg5 Qf1 Qg4+
k1nB2qb/1P1BNR2/6n1/R1pBbNBQ/b6n/b5N1/2rR4/2rB1K1N b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 d4 Kd7 h4 f5 a4 c5 e4 Kc7 d6+ Kc6 h5 g5 e6 b5 e7 Kb7 e8B f4 h6 f3 a6+ Ka7 d7 g3 a5 b4 h7 g4 e5 g2 e6 g3 d5 b3 e7 b2 d6 Bh6 Be2 Nc6 Nd2 b1Q Nh3 g1B Ne4 f2+ Kf1 Bh2 Bg5 Ne5 Rg1 Kb8 a7+ Kb7 Ra3 Ng6 Bg4 Rb8 a8B+ Ka7 a6 Qb7 Ra5 g2+ Ke2 f1N Nhf2 Ne3 Nh1 Nf5 Neg3 Bg7 Rf1 Nfh4 Rf7 g1B Kf1 Be3 Qd5 Bd2 Bd1 Bc1 Qf3 Ba3 Qh5 Qb3 Bd5 Qb7 Bh6 Ka8 Bg5 Qb6 d8N Bd7 Nc6 Qd8 Nd4 Bc6 d7 Ba4 Ndf5 Qc8 d8B Bgb2 Ne2 Bhe5 Bd7 Bbc3 e8N N8e7 Ned6 Rg8 h8R Rg7 Bb6 Qg8 Neg3 Nc8 Ne7 Rh7 Ndf5 Rh6 Rhh7 Bh8 Qg4 Bce5 Bd8 Rh5 Bh6 Rg5 Qh5 Rg4 Rhg7 Rc4 Bg5 Rc1 Rh7 Qc6 Rh6 Rb2 Rhh7 Qb7 Rh6 Nf4 Rb6 Rg2 Rb2 Rgc2 Ra2 Nfg6 Rb2 Rc4 Rd2 R4c2 axb7+
3nqQ1N/1R5R/B6Q/P2Rp1bR/n1K2k1q/6r1/1RNbB3/NR1brb2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 h6 g4 Bg7 g6 Bf8 g7 Qd7 Kf2 Qd6 Ke1 Qd8 g5 Na6 g6 Rh7 Bb2 Rh8 Bf6 Nb8 Bg5 hxg5 Ke2 Kd7 Kd3 Kd6 h4 Ke5 a4 b5 f6 c5 f7 b4 a6 b3 h5 b2 d6 e6 h6 g4 h7 g3 a7 g2 a5 Qg5 d7 Qf6 d8R Qf5+ Kc4 Qf6 d4+ Ke4 d5 e5 d6 Kf5 d7 Be7 f8Q Na6 Qd2 Nh6 g8B Nf7 Nf3 g1Q g7 Qgg6 Qh6 Qh4+ Nd4+ Kg4 Rh2 Bg5 Nc2 Kf4 Nba3 b1B Be2 Bb7 Rf2+ Bf3 Rb8 Qc6 d8R Qe8 Rb5 Rb8 Rb2 Rb3 Rh2 Bg4 a8R Rg3 Rd7 Bh3 Rab8 Bf1 R8b7 Ba2+ Kb5 c4 Rab1 c3 Na1 Bb3 N3c2 Nc5 Kb4 Na4 Rd5 Ke4 Rh3 Nd8 Bf7 Rg8 h8N Kf4 Ba6 Re3 Rh2 Re1 Bh5+ Ke4 Bhe2 Bd2 Na3 Bd1 Kc4 c2 Rh3 c1B N3c2 Bg5 Rh2 Bcd2 Rh1 Qf2 Rh5 Qh4 Ng6 Rh8 g8R Rh7 Nh8 Rg7 Qfd6 Rg6 Rgg7 Kf4 Qc5 Rb6 Rgd7 Rb3 Rh7 Rg3 Qcf8+
R1B3R1/1N1r1q2/PN1q2R1/1q2Bn1r/p6B/1R1B1n1K/NQ6/nrRb2k1 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 f5 e4 d5 exf5 b5 cxd5 Bg7 axb5 a4 Rh3 Bf6 Rh1 Bc3 Qe2 Bd4 Qg4 Bb6 Qd1 Ba5 bxa5 Kf8 Qg4 Kf7 Qd1 Ke8 g4 Kd7 d4 Kd6 f4 h5 Kf2 c5 Kg2 e5 b6 e4 b7 c4 a6 e3 g5 e2 g6 e1N+ Kh3 c3 g7 c2 Bb2 c1Q Qc2 Nf3 Bd3 Qe7 Nc3 Qd8 Na2 Be6 Ne2 Ra7 Rg1 Qd1 Rc1 Rh7 Nec3 Qb6 Rg6 Nh6 g8B Nc6 b8R Na5 Qe2 Qc7 Rb3 Qf7 Ba1 Rd7 Qb2 Ng4 f6 Nh6+ f5 Rh8 Kg2 h3+ Kg3 h2 Kh3 h4 Bh7 Kc7 d6+ Kc6 d5+ Kc5 Bg8 Kd4 Bh7 Ra7 d7 Ke3 d8B Rd7 d6 Qe2 Be7 Kf2 Nd5 Rb8 Nb6 Bd5 Ra3 Bb3 Bg8 Bd1 Rb3 Nc6 Bh7 Nb4 Bg8 Nc2 Bd8 Qf8 Be6 Qf7 Be7 Qe5 Bd8 Qb5 Be7 Qg7 f7 Qge5 f6 Nf5 f8R h1R+ Kg4 h3 f7 h2 Bh4+ Kg2 Rfg8 Kg1 f8R Qg7 Rc8 Qf7 Rcd8 Rbb7 Ra8 Rb8 Qa3 Rbb7 Be5 Na1 Qb2 Rb8 R8g7 Rh8 Rgg8 Rh5 Kh3+ Rg5 Nc4 Rd8 Bc2 Kf1 d7 Rh5 Bg3 Rg1 Rb1 h1Q+ Kg4 Qg2 Nb6 Qd2 Kh3 Qd6 Be5 Rh1+ Kg4 Kg2 Bd3+ Be2 Re1 Rf1 Rd1 Kg1 Re1 Rc8 d8N Rc7 Bc8 Rd7 Rb1 Rc1 Nb7 Bd1 Qd2 Rc2 Rc1 Rb2 Qc2 Rb1 Qb2 Nh6+ Kg3 Nf5+ Kh3+
2b1qQQQ/r4QNr/2Q1brB1/RQ2Nrk1/3P4/7N/1p4K1/bn3BRr b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 g4 Bh6 h4 Qd6 h5 Nc6 Bb2 Bf8 Be5 Qd8 Bf4 gxf4 g5 Ne5 Qf3 Qd6 Qd1 Ng6 hxg6 Qd8 Kf2 b5 a4 e5 a6 h5 a5 c5 d3 b4 f7+ Ke7 g7 h4 g6 Kf6 a7 c4 d6 e4 d7 b3 a6 f3 Qc2 h3 Ra5 c3 Qb2 h2 Nd2 Ne7 g8Q Kg5 f6+ Nd5 g7 c2 Nc4 c1R Ne5 Rh7 Qh8 Nc3 g8Q+ Bg7 f8Q Nb1 f7 Qe8 d8N e3+ Kg3 f2 Kg2 e2 Nh3+ Kf6 Rg1 h1R Ne6 e1R Qe2 Rc6 Qe7+ Kf5 f8Q+ Bf6 Qb2 Re4 Qef7 Rf4 Ng6+ Kg4 Ng7 Rf5 Qe5 Re6 Qb5 Ba1 d4 b2 Ne5+ Kh4 Ra3 Ref6 Ra5 Rb8 a8B Rb7 a7 Rc7 Nf4 Kg5 Be4 Re7 a8Q Ra7 Qac6 Be6 Bf3 Bc8 Bh5 Be6 Bfe2 Bc8 Bg6 f1B+ Kg3 Bg2 Bf1 Bd5 Kf2+ Kh6 Kg3 Bde6 Kg2 Kg5 Nh3+
1Q2q1bQ/P2Bqq1r/K1N4b/2k5/1N3q1p/1q3N2/nBB1rB2/BB1R1R2 b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra4 f4 Qd6 fxg5 Kd8 h4 Ra8 h5 Nf6 g6 Ke8 g5 Qd8 g7 Ng8 Kf2 Nd7 Ke2 Ne5 Ke1 Ng6 hxg6 Qd7 Na3 Qd6 Nb1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 h5 Kb5 c5 d4 e5 a4 b3 f6 b2 a5 b6 a6 h4 f7 e4 a7 e3 Na3 b1Q+ Bb2 e2 Qb3 e1Q Nc2 c4 Nf3 c3 Bd3 Qec1 Rd1 Nf6 g8B Ne4 g7 Nf2 g6 Bf5 Nb4 c2 Ka6 b5 Bh7 Qf4 g8B c1Q g7 Qce3 Bc2 Qee7 Rf1 Qbe1 Rd1 Qc3 Bb1 Be6 Bhc2 Qc4 Qc3 Kd7 d6 Rh7 d5 Qde8 Qe5 Nd3 Qf6 Kc8 d7+ Kc7 d8N Kd6 Ndc6 Kc5 d6 Nc1 d7 Na2 d8B Qb3 Ba5 Rd8 Bc7 Rd2 Bce5 Re2 Ba1 Qbc4 Beb2 Qb3 Bf5 Bd5 Bd7 Be6 Qe5+ Qd5 Qb8 Qdf5 Nd5 b4 Bc2 b3 Ndb4 Rh6 Bh7 Qg6 Bf6 b2 g8Q b1Q Qh8 Qb3 Bfb2 Qg7 Bhd3 Rh7 Bb1 Qg8 Bdc2 Bh6 f8B Qgg6 Bfg7 Bg8 Bgc3 Qh5 Be1 Qhf7 Bf2+
bRKBBB2/2Q2Rb1/B5n1/N3N2n/qq1n4/1qB5/1Pr1Qp1k/1n1Q2B1 b - - 0 1 illegal: No possible last move
5BrB/3nQ1qR/Rr1QKn1B/4Nn1B/P3qr2/3p1R2/3B2Bk/4bN1r b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 g4 c5 gxh5 b5 d4 b4 dxc5 Ba6 b3 Bb5 cxb5 a4 Qf3 axb3 Qe2 Ra6 Qd1 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 g5 Kd5 e5 f4 g4 h4 b2 h6 d6 h5 e4 c6 e3 b6 e2 b7 e1N h7 g3 c7 b3 c8B g2 h6 Nd7 b8R Nc2 Nf3 g1Q Nbd2 b1R Ne5 b2 Bg2 Qf2 Rb3 Qdb6 Rf3 Qfe3 Nf1 Ra4 Bd2 Qa7 Ba6 Rc1 Be2 b1R a3 Rb6 Qe1 Nd4 Rh4 Ke7 f6+ Kd8 f5 Kc7 f7 Rd1 f6 Nf5 Ba6 Rf4 Ke6 Qe4 Be2 Be7 f8B d5+ Kf7 Bd6 Ke6 d4 f7 d3 Bg7 Rc1 f8B Ngf6 Qg3 Rg8 h8B Re1 h7 Reb1 Bh6 Bc5+ Kf7 Bf2 Qg5 Be1 Qg7 R6b5 Ke6 Rc1 Qe7 Qg1 Bh3 Qg7 Bg2 Rb8 a4 Rb4 Rb1 Rb7 Rb4 Rb1 Rd4 R7b6+ Rd6 Nd5 Bg5 Qg6+ Bhf6 Rc6 h8Q Bg3 Nh2 Rh1 Rf1 Be1 Qh6 Kb6 Rh3 Qh7 Bh8 Kc5 Qg6 Qh6 Kf7 Kd4 Rf2 Ra6 Nf1 Rc6 Qge6 Ra6 Rb6 N5f6 Qc6 Qg7+ Ke6 Rh2 Rh7 Rh1 Rb5 Rb6 Bh6 Qf3 Qcd6+ Ke4 Bh3 Qe3 Ra5 Qd4 Bh5 Qb4 Ra6 Qd4 Ng4 Qb4 Re2+ Kf3 Re4 Qd4 Ne5+ Kf2 Re2+ Kg1 Bg2 Qe3 Rf2 Qe4 Ng3 Kh2 Rf1 Rb4 Rf3 Rb6 Nf1+
NR1Kbq2/3BB1nR/2RNN3/QPB5/2nr4/bN3qp1/3q2k1/1RNbb3 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 f4 a5 f5 Ra6 h4 Rf6 g5 Kd6 gxf6 Qd7 h5 Qc6 h6 Kd7 Qg4 Qd6 Qd1 Qh2 Nh3 Nxh6 Ng1 Ng8 b6 Kd6 b4 Ke5 d4+ Ke4 b5 e5 b7 h5 d6 c5 d7 g5 d8N a4 d5 g4 d6 g3 d7 h4 Bh3 a3 Qd2 c4 Qa5 a2 Bg5 c3 Ne2 c2 Kd2 Kf3 Kc3 e4 Kd4 c1Q Kd5 e3 Ke6 Ne7 Nd2+ Kf2 Rb1 Qa3 Nc1 Nbc6 b8R e2 Nb7 e1B Ndb3 Qb4 Bg4 h3 Bh4 Qe4+ Kd6 Rh7 Kc7 Ne5 d8R Bd7 Rdc8 Nc4 Kd8 Be8 Rc6 Qhg2 Bg5 h2 Bh3 Rh4 Bg4 Bh6 f8B Bg7 f7 Bb2 f6 Ba3 Be6 Nf5 Bc5+ Qe3 f8N Rd4+ Nd7 Ng7 f7 Qee4 Rg1 h1B f8N Qf1 Bg4 Bf3 Nd6 Bd1 Rh1 a1Q Nb6 Qc3 Na8 Kg2 Rh7 Qd2 Be7 Qf6 Bf5 Qf3 Bd7 Q6f4 Ne6 Qf5 Ne2 Qf8 Nec1
Rq1Q1Bk1/R3rN2/1R2b2Q/P1K1R1R1/2RN1q2/p3B3/Nn2rr2/1nn1n3 b - - 0 1 illegal: No proof kernel
4b1nB/1Nq5/4qNRP/Q1rb2N1/4R3/nbNN2p1/BKb1NQ2/1R3q1k b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Nc6 g5 Nb8 h3 a5 h4 Ra6 Kf2 Be7 Ke1 Rah6 gxh6 g5 Na3 g4 Nb1 Bg5 hxg5 Kf8 Rh2 Ke7 Rh1 Ke8 e4 Ke7 b4 Kd6 d4 c5 Kd2 f5 Kc2 g3 b6 a4 b5 a3 b7 f3 b6 h4 g6 c4 g7 f4 Nc3 h3 Bb2 f2 Qh5 h2 Nge2 a2 Re1 Na6 b8N a1Q b7 f3 Nc6 Qd7 b8Q+ Nc7 Qa7 Rh7 Ne5 Qe6 Nd3 Bd7 Bh3 f1B e5+ Ke7 Qb6 Be8 d6+ Kd7 d5 f2 Qf3 Nb5 Qa5 Bg2 Bg4 f1B Qf2 Be4 Rb1 Bfg2 Rhe1 h1B Bh5 Bh3 Bf7 Na3+ Kc1 Kc8 d7+ Kb7 d6 Kc6 d8R Bg6 d7 Bd5 Rb8 Qd6 Ra8 Bhe6 Rd8 Qa2 Ra8 Qc7 d8N+ Kd7 Nb7 Kc6 Ba1 Qb3 Ra6+ Qbb6 Ne4 c3 Ng5 c2 Bc3 Bb3 Kb2 Bed5 e6 Rh8 e7 c1Q+ Ka1 Q1f4 Kb2 Qf5 Qg2 Qf1 Qf2 Bd7 e8N Bge4 Ndf4 Bec2 Ned6 Be8 Nd3 Rh7 Ra8 Qe3 Nb5 Qe6 Bf6 Bh1 Ra6+ Kd5 Nf3 Ke4 Rb6 Kf5 Ng5+ Kg4 Nbc3 Bhd5 Be5 Qee7 Rg6 Qe6 Nf3+ Kh3 Bf6 Ne7 g8N Rh8 Bg7 Rh7 Nf6 Ng8 Bh8 Rg7 Qfc5 Kg2 Ng5 Kh1 Qe3 Qa6 Be6 Rd7 Bf7 Qe6 Qf2 Rd8 Nd4 Rd6 Re4 Rc6 Nde2 Qee5 Be6 Rc5 Bd7 Qe6 Bb5 Bd1 Bc4 Bbc2 Ba2 Bcb3 Nf7 Bdc2 Ng5
3N1r2/1N1b1qN1/NqqP2nK/1R1p1Q1n/2n3N1/3QR1RB/3q1N2/B2bk3 b - - 0 1 legal: proof: e4 f5 exf5 d5 h4 g5 a4 gxh4 c4 b5 axb5 a6 c5 Bh6 Qf3 Bg7 Qd1 Bf8 d4 a5 Qb3 Ra6 Qd1 Rd6 cxd6 Bd7 Qa4 Be6 Qd1 Bc8 Bd2 c5 Bg5 c4 Bc1 Bh6 Ke2 Bd2 Na3 Bc3 Nb1 Bb4 Bg5 Nh6 Bc1 Bc5 dxc5 Ng8 Kd2 Bd7 Ke1 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 h5 g4 h3 b4 a4 g5+ Kf7 b6 a3 g6+ Kf6 b7 e6 c6 c3 g7 c2 b5 h2 b6 h4 c7 a2 Nc3 h3 Qd3 Qe8 Na4 Qh5 Bb2+ Kf7 f6 c1N Rb1 a1Q Nc5 Qa5 Ba1 Bd7 c8Q Ne7 g8N Nbc6 b8N Ne5 b7 Qb6 Rb5 Nc4 Nc6 Qg6 b8N e5+ Kf3 e4+ Kf4 e3 Nba6 e2 Nb7 Ke6 f7 e1Q f8R Qb4 Nh6 Qf7+ Kg5 Qd2+ f4 Ng6 Ng4 Ne2 Bg2 Rg8 Kh6 Ng3 Bf1 Nh5 Bg2 Qe7 Rf5 Rf8 Rg5 Qe8 f5+ Kf7 f6 Ke6 f7 Qe7 Ne2 Qe8 Re1 h1Q Rf1 h2 Bh3 Qf3 Nc3 h1B Nd1 Qf5 Rf4 Bf3 Ndf2 Bd1 Rf3 Qf6 Ne7 Qfc3 Nf5 Qcc1 Nge3 Qcc3 Rgg3 Ke5 Ng7 Qe7 Qf5+ Kd4 Qb8 Re8 f8N Qf7 Qc7 Qc5 Qa5 Qb6 Qa3 Ra8 Ne4 Kd3 Nfe6 Ke2 Nf2 Re8 Ned8 Ke1 Qb3 Rg8 Qbb1 Rf8 Qbd3 Qdc2 Neg4 Qa4 Rb4 Qac6 Rb5 Qd2+ Re3+
2R5/QP2r3/3q1Qqk/1Bn2nQN/BrN1QQpN/1r3n2/K4b1Q/R2n4 b - - 0 1 illegal: No possible last move
BBbR3r/BQn5/6R1/n2n1R1P/1p3bK1/1N1N3R/n1r4N/2RNkr1n b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Qd6 exf5 axb4 a3 b3 a4 b4 Bb2 Qc6 Bc1 Qb5 axb5 Rh6 Qe2 Rh7 Qd1 Rh8 Ke2 Kf7 Kf3 Kf6 h4 Ke5 d4+ Kd6 b6 g5 h6 c5 h7 e5 f6 b2 b7 c4 h5 c3 f7 c2 Be3 c1R Bg2 Rc6 Nc3 b1N Rh3 Bh6 f8R Rca6 Rf5 e4+ Kg4 Nd2 f4 Nb3 Nf3 Na5 Rc1 Rc6 Qh1 Na6 b8B+ Nc7 Nh2 Ne7 Nd1 Rc2 Bf3 Rf8 h8N Rf7 Bg1 e3 Ng6 e2 Ne5 e1N Nd3 Rf6 Nc5 Nd3 Nb3 Nb2 Bg2 Na4 Be4 Nc3 Qg2 Kd7 d6 Ke6 d7 Na2 d8R Ned5 Rg8 Kd6 Bf2 Kc6 Rg7 Kb5 Rg6 Kc4 Bf3 Kd3 Qh1 Ne7 d5 Rf7 d6 Ned5 Be4+ Ke2 d7 Rf8 Bg1 Ke1 d8R Rh8 Qg2 Ra6 Bga7 Rf6 Kf3 g4+ Kg3 Nb6 Ba8 Nbd5 Kh4 g3 Kg4 Nb6 Qb7 g2 Rgg8 g1N Rg6 Re6 Rb5 Re3+ f5 Ne2 Rbd5 Re6 f6 Bf4 f7 Ng3 f8N Nh1 Rf5 Nbd5 Nd7 Re3 Ne5 Rf3 Rf6 Rff2 Rg6 Rf1 Nd3+
K1R1bQ2/1B1N1N1N/2r5/R3P2Q/2bb1N2/b1nb2Np/n1k2Nr1/5BbB b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bg4 b3 Bc8 h4 Ne7 g4 Qd7 h5 Nbc6 Ba3 Qe6 Bc5 Qh6 Be3 Qg6 hxg6 Nb8 Bf4 gxf4 g5 Ng8 Kf2 Kd7 Kf3 h5 Ke4 a5 d4 c5 b4 c4 d6 Ke6 b6 f6 g7 h4 d5+ Kd7 b7 h3 g6 c3 e6+ Ke8 b5 a4 d7+ Ke7 d8N Kd6 b6 Kc5 d6 Kb4 Kd5 c2 e4 Kb3 d7 f3 e5 a3 e7 f2 e8B f5 Nd2+ Kb2 Ne6 c1B d8N f4 Ne2 a2 Ne4 f3 N6f4 Be3 N2g3 Rh4 Nf7 Ra6 Bc6 Ne7+ Kd6 Be6 Kc7 Bd7 g8B Rg4 g7 Be8 Bh7 Rg5 g8N Nd5+ Kc8 Bb4 Ngf6 Nc3 Bg6 Ba3 Nh7 Bec5 Bd5 Nc6 b8Q Bd4 Kb7 Nb4 Bf5 Be3 Bc8 Rg7 Rc1 a1B Qd6 Bc5 Qf8 Nba2 Kb8 Be3 b7 Rc6 Ka8 Bd4 b8N Ba7 Bb5 f1B Nf2 Bd3 Nd7 Bb6 Bb7 Be3 Nfe4 f2 Qh5 f1B Nf2 Bc4 Rg1 Bfd3 Bh1 Kb3 Rge1 B1b2 Ra1 Kc2 Reb1 Bd4 B5a6 Bc1 Rb5 Bce3 Rc5 Rf6 Rc8 Rc6 Rb1 Rgg6 Rb5 Rg5 Ra5 Rg8 Ng4 Bg1 Nf2 Rcg6 Bbg2 Rc6 Bf1 Rg4 Bb7 Rg5 Nf5 Rg2 Ng3
2r1kR1K/1rqr1b2/2R5/BBb3Pp/B1b1NN2/7q/b1NB1B1b/1R3Q1R b - - 0 1 illegal: No possible last move, all moves rejected
1b2b1bK/2RRnN1R/P2BR1B1/2N5/2BQnkbB/p1R5/qn5b/q3N3 b - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 cxd5 g5 h4 gxh4 Ra3 f5 exf5 b4 Ra1 Ra7 b3 h5 Rh2 Rb7 Rh3 Rb5 axb5 a4 Rh2 a3 Rh1 Rh6 Rh3 Ra6 Rh1 Ra4 bxa4 Bb7 Bc4 Ba6 Bf1 Bc8 Ke2 Kf7 Kf3 Kf6 Kf4 c5 d4 b3 g4 b2 g5+ Kf7 Ke5 c4 f4 c3 b6 h3 b7 h4 a5 e6 a6 h2 d6 h3 f6 Kg6 d7 c2 f5+ Kh7 f7 Be7 f8B Nh6 d5 Bb4 d6 Qe7 d8R Qe8 Kf6 e5 d7 e4 Nd2 b1B Bc4 e3 Ngf3 e2 Ne4 e1B Qd4 Nf7 Bd6 Qg8 Nc5 Nc6 b8R Ne7 Rb6 Bg3 Ne1 Ba2 Rb7 Ne5 Rc7 Nd3 Bf7 Bf4 g6+ Kh6 g7 Nb2 Bg6 Qc4 Bd2 c1Q g8B Bb3 Ra2 Qa1 Bd5 Qe2 Bc4 Ba4 Kf7 Kg5 Kg7 Bc3 f6 Ba5 Rc6 Bc7 f7 Bb8 f8R Qf2 Rde8 Bb3 d8N Bg4 Kh8 Qe2 Bb5 Bg8 Bc4 Qf2 Rf7 Qg2 Rg1 h1N Rh7 h2 Rc7 Nf2 Rf1 Ne4 Rf3 h1B Rc3 Qh2 Be3 Qe2 Bf2 Bh2 Rd7 Bhf3 Rc7 Bd7 Nf7+ Kg4 Rd8 Be8 Bh4 Qf2 Ne5+ Kf4 Rdd7 Nd1 Re2 Bg4 Ree3 Qfa2 Bh5 Nb2 Nf7+ Kf5 Re2 Nf6 Re6 Ne4 Ne5 Kf4 Bf7 Be2 Bg6 Bg4 Nf7#
B5k1/1R1q2NB/P2N4/2Nr1b1p/1r1rb2q/KBb1QqB1/N3r1RR/1N6 b - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 b4 d5 cxd5 e5 fxe5 axb4 Qb3 f4 Qd1 Nh6 h3 Nf5 gxf5 Nd7 h4 g4 Ba3 Nc5 Bb2 Ne4 Bc1 Ng5 hxg5 Ra6 Rh4 Ra3 Rh1 Ra8 a4 Kf7 d4 c5 Kd2 b5 Kc2 h5 Kb2 f3 e4 b3 g6+ Kg8 e6 g3 g7 f2 f6 b4 e7 c4 e8N g2 d6 Ba6 f7+ Kh7 g8B+ Kg6 d5 Qd7 e5 Rb8 a5 Rb5 e6 Bc8 e7 Rc5 a6 Qf5 d7 Qe4 d8R Qe1 d6 Bb7 d7 Be4 Qd4 Rd5 Nd6 Bg7 Ne2 g1R e8B Rg4 Bg2 f1Q Ra2 Qf3 Rh2 Qh4 Bf4 Be5 f8N+ Kg7 Nc1 c3+ Ka1 c2 Kb2 Rh6 Rb8 Re6 Bg3 Bf5 Qc3 Rgd4 d8N Bf6 Bg6 Re2 N8b7 Be5 Nd3 c1R+ Qd2 Rcc4 Nbc5 Be4 Be6 Bf5 Rb7+ Kh8 Bd7 Kg8 Nfe6 Bg7 Ba4 Bf6 Ka1 Be5 Rc2 b2+ Ka2 b3+ Ka3 Rb4 Qe3 Be4 Nc1 Bg7 Nd2 b1B Na2 b2 Bb3 Bf6 Ng7 Bf5 Rc3 Bbe4 Rc2 b1Q Rb2 Qd3 Nb1 Qb5 Rd2 Qd7 Bh1 Re1 Rdg2 Re2 Qc1 Rd3 Be8 Qf1 Qe3 Bf3 Rc7 Bc3 Bg6 Rdd4 Rg1 Qf2 Nce6 Re5 Nc5+ Bd5 Be4 Qf3 Rgg2 Bc4 Ba8 Red5 Ra7 Bcd3 Rb7 Bde4 Bh7+
3nQqN1/1B2n2R/PpB1qbk1/R2n2B1/bB6/1R1K1Bq1/3Q2b1/2b1B1N1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 f5 b4 axb4 g3 e5 g4 h5 fxe5 g5 Ba3 f4 Bc1 Rh6 h3 Rf6 h4 Rf5 gxf5 g4 Ba3 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Bg7 Qb3 Bh6 Qd1 Bf8 a4 Kf7 e4 c5 Ke2 g3 d4 g2 f6 b6 e6+ Kg6 d6 f3+ Kd3 h4 a5 f2 f7 b3 a6 b2 d7 h3 d5 h2 e7 Bb7 e8B Bc6 d6 Qf6 d8B Qf4 d7 Bd5 e5 Ba8 e6 Bd5 e7 Nf6 Nc3 b1N Bd2 Qf5+ Ne4 Nc3 Ra5 Qe6 Be1 Bc6 Be2 f1Q Qd2 Nfd5 Nf6 Ba4 Ng8 Bg7 f8B+ Qff7 Bf3 Bf6 Bg7 Nc6 Bf8 Kf5 g6 Qg7 Bc7 Nd8 Bf4 Qgf7 g7 Kg6 Ne2 g1Q Bg5 Qg3 Ng1 Ne3 Bb7 Nf5+ Bf3 Nc6 d8R Nd5 Rc8 Nd8 Bc6 Qe8 Bb7 Q8f7 e8B Nfe7 Bec6 Qe8 Rb5 Q8f7 Rb3 c4+ Kc2 c3 Kd3 c2 Rc7 Nc8 Bb4 c1B Re7 Qf8 Rd7 Nc7 Rd5 Ne7 Ra5 Ncd5 Nh6 Qff7 g8Q+ Qg7 Qf8 Qh8 Ng8 Qh6 Ne2 Qg7 Qe8+ Qgf7 Rf1 h1B Ng1 Bg2 Rf2 Bh3 Rh2 Bg2 Qd7 Qg7 Rh7 Qf8 Qe8+
2R2k1b/Rn6/bRbN1Rq1/1Rp1NQrn/3p1P2/8/rBn2QB1/2KRQ3 b - - 0 1 illegal: No possible last move
KQ2N3/1N2npbr/6B1/1bq1P1N1/2Rb4/1Q4r1/1pQ2NBR/knN2r1N b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 fxe5 a5 g4 c5 gxh5 Bh3 b4 Kd7 bxa5 Ke8 Ba3 Bc8 Bb4 cxb4 Kf2 Kd7 Kf3 g5 Ke4 b5 a4 b3 h4 b2 d4 g4 e6+ Kd6 h6 b4 h5 g3 h7 g2 e7 b3 e8N+ Ke7 d6+ Ke6 d7 Qg5 d8N+ Ke7 d5 Kd7 h6 Ba6 d6 Qc1 Kd5 Qf4 e4 Bc8 e5 Qd2+ Bd3 Qf4 a6 Qf5 a5 Qf4 a7 Qe3 a6 Qf4 Nc3 b1R Nb7 b2 Nce2 Qf6 Bg6 Qh4 Ng3 Qf4 Nh3 g1B Qb3 Be7 Rh2 Qf6 Nf2 Qf4 Ra4 Qb4 Ngh1 Bf6 Na5 Qc3 Rc4 Nc6 Kc5 Ke6 Kb6 Kd5 d7 Rf1 d8N Bd7 Kb7 Rc8 a8B Nb4 a7 Bg7 Ne6 Qd4 Ng5 Ne7 Nd6 Rhg8 h8Q Bb5 h7 Na2 Qc2 Rcf8 Nb3 Nc3 Nc1 Nb1 Qb3 Qc5 Qc2 Bf6 Qg7 Rd8 h8Q Rdf8 Qgh7 Bg7 Qh3 Re8 Qhb3 Rd8 Nd1 Bd4 Ndf2 Rde8 Qhh3 Rh8 Qc8 Rh3 Qb8 Reh8 Qf8 Rg3 Kb8+ Qc6 Bb7 Rhh3 Ka8 Rh7 Qb8 Ba4 Qbd3 Rhh3 Rb4 Bb3 Qdc3 Bc4 Ra4 Kc5 Q3b3 Qc8 Bg2 Rh7 Rb4 Qc7 Ra4 Qa5 Kb7 Qc3 a8N Bb5 Nc7 Qc4 Ka8 Qc3 Ra7 Qc4 Qe3 Kb4 Nb7 Qc3 Ne8 Qc5 Qce4 Kc4 Ra3 Kb4 Rc3 Ka4 Qc2+ Kb4 Nb3 Ka3 Rc4 Ka2 Nc1+ Ka1 Qeb3
1Nn5/5N1R/KB1R3N/1B4Nr/p2P1n2/1b2rQ2/bp1Nq1rk/NQQq4 b - - 0 1 legal: proof: e4 c5 g4 f5 exf5 h5 gxh5 d5 c4 Qd6 cxd5 Qd8 b4 cxb4 a3 b3 Bc4 b2 Bb5+ Qd7 Bf1 Qd8 Ke2 b5 Ra2 e6 Ke1 b4 Ra1 b3 Ne2 Bb4 axb4 Qf6 Ng1 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Kf4 h4 g5 f6 a5 h6 e5 f7 g4 f8Q+ Nf6 d6 e4 d7 a4 h7 e3 h5 g3 h6 g2 Nf3 g1Q Qc5 e2 Ne1 Ra7 Nc2 Re8 h8N e1R h7 R8e7 Nf7 Qg4 h8N Nh5 Nh6 Qg1 N8f7 Rc7 Ng5 Qf8 d8N Qg8 Ndf7 Ra7 f3 Kg3 f4 Bg4 f5 Ra8 f6 Nd7 d3 Ra6 Be3 Ra7 Nd2 Re2 Qb1 Nf4 Rh2 Rc7 Ka6 Rg2 b5 Bd1 b6 Qe8 b7 Nb6 b8N Nc8 Qa3 Rcd7 Bb6 Re3 d4 Qe6 Bb5 Rd5 Ra2 Qg4 Na1 Qe2 Qc5 Rf5 Qcc1 Bc2 Rh4 Qgd1 Rg4+ Kh2 Ra3 Ne6 Re4 Nf4 Re6 Rfe5 Rd6 Rc5 Ne5 Rd5 f7 Rc5 f8Q Rd5 Qa2 b1B Nef7 b2 Rc3 Bb3 Rc7 Bh7 Qab1 Bg8 Qe8 Ba2 Qee4 Re5 Qf3 Rc5 Nh8 Bgb3 Rh7 Rf5 N8f7 Rfe5 Nh3 Rh5 Nhg5
Rq1N4/5q1P/1p1k3p/3Br2B/2r3bB/1N2RRRn/2QK1RBn/2N2b1b b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 Be7 g4 Nh6 b4 axb4 g5 Bf8 d6 Ng8 Nf3 h6 Ng1 Qf6 d7+ Ke7 Na3 Qf5 Nb1 Qh7 g6 Ra6 Qb3 Ra7 Qd1 Ra8 gxh7 g5 h3 g4 h4 Bg7 Nc3 Bf6 Nb1 Bg5 hxg5 Ra4 Rh4 Ra7 Rh1 Ra8 d8R c5 a4 f5 e4 c4 d4 b6 a5 c3 g6 c2 d5 f4 d6+ Ke6 d7 f3 a6 g3 g7 b3 a7 b2 Ra2 g2 Nd2 b1B Ne2 g1Q Rh3 Qh2 Bg2 Qf4 Rf8 Nc6 Rg3 Nd4 Nb3 Qf7 Bg5 c1Q Bh4 Qcf4 Nec1 Nf6 g8B Nd5 Qc2 f2+ Kd1 f1B d8N+ Kd7 e6+ Kd6 e7 Nf3 e8R Nh2 Re5 Rb8 a8R Bg4+ Ke1 Rb7 Ree8 Qe5 Kd2 Nf4 R2a3 Re7 Rf3 Qff5 Bd5 Nh3 Rf2 Qfe6 R8f3 Qf7 Rg8 Rc7 Re3 Qef4 Rg5 Rc4 e5+ Kd7 e6+ Kd6 e7 Re8 Qb2 Be4 Qc2 Kd7 Rf5 Qb8 R5f3 Kd6 Rg3 Rg8 e8B Rg5 Rgf3 Re5 Rg3 Qf4 Bg6 Qf7 Bh5 Bfe2 Bf1 Bh1 Bfg2 Bf1 R3a7 Qe6 Raf7 Qe7 R7f4 Qf7 R4f3
1Q1R1nR1/8/p2BbBbP/2NnqN2/rNb5/2pB1K2/1N1b1N1k/N1Qr4 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 g4 h5 Ra4 h4 Ra2 Qd6 Ra1 Qg6 h3 Qh5 gxh5 g4 Ra3 gxh3 Ra2 Nh6 Ra1 Ng8 Ke2 Kd7 d4 Kd6 f4 e5 b4 c5 b6 e4 h6 h2 f6 a6 f7 h3 f5 c4 b5 c3 b7 e3 f6 Ra7 b6 Bd7 Kf3 e2 Nd2 e1Q Bd3 Qe6 Nb3 Qe7 Bg5 Bb5 Qc1 Bg7 f8N Bd7 f7 Qd8 Ng6 Qf6+ Nf4 Qg6 f8B+ Ne7 Bf6 Nc6 b8Q+ Rc7 b7 Qe8 Ra5 Bc8 Na1 Nb4 Ra2 Be6 Rg2 Qh5+ Rg4 Qe5 Rg2 Kd7 d6 Rc4 d5 Ng6 B8e7 Rd8 Rg5 Ke8 d7+ Kf7 d6 Nd5 Rg2 Ra4 Rg5 Rh8 Rg4 Nf8 d8N+ Ke8 Nc6+ Kf7 d7 Rg8 Bh4 Bf6 Bd6 Bg5 d8N+ Kf6 Nb4 Rg7 Ndc6 Rd7 Nd4 Rd8 Nge2 Rd7 Rd1 h1B+ Rg2 h2 Nf5 Rd8 Nh3 Rd7 Bg3 Bd2 Nf2 Kg5 Bh4+ Kh5 Bf6 Rd8 Ne3 Rd7 Nd4 Rd8 Bg7 Kh4 Nc4 Rd7 Nb2 Rd8 Ng4 Kh3 Bf6 Rd7 Nf5 Rd8 Kf2 Rd7 Rgg1 Be4 Ke2 h1B Nf2+ Kh2 Rg8 Ra2 Qa8 Ra5 b8N Ra4 Qa7 Rd8 Nd7 Bhg2 Nc5 Rd7 Ne3 Bg6 Qb8 Bf1+ Kf3 Rd8 Bb1 Bc4 Nf5 Ne7 Bc7 Rd4 Bd3 Nd5 Bd6 Rg4 Re1 Rg1 Re4 Rd1 Rg4 Nd7 Rd8 Nf8 Rg5 Bh7 Rg7 Bg6 Rg8
2R1N1K1/5r2/NB2N2B/2n1p1N1/Rqb1q1PR/2n2pQn/4R2k/2qBR1r1 b - - 0 1 illegal: No possible last move
1q1k2BN/bQQ4r/qr6/p2B1K2/bB1RR3/1N6/Rn1Rp1P1/2Rr2bR b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 f5 f4 b5 fxg5 f4 axb5 Nc6 e4 Nd4 h4 Nf5 h5 Bg7 h6 Bxh6 exf5 Bf8 Kf2 c5 Kf3 a5 Ke4 h5 b4 e5 d4 f3 g6 f2 f6 c4 b6 h4 f7+ Ke7 d6+ Kd7 b5 c3 b7 h3 b8Q h2 d5 c2 g7 Nh6 g8B Qf6 b6 Qd8 b7 Ng4 Nd2 Rh7 Ne2 Nf6+ Kf5 e4 Ra2 e3 Ba3 c1B Nb3 Bg7 f8R Rh3 Qc2 Ne4 Re8 Nc5 Re4 Na4 Nf4 Rh7 Bb4 Ra6 Bc4 Nb2 Ng6 Rb6 Nh8 Bd4 Qa8 e2 b8R Bce3 Qb7+ Qc7 Ra8 Kd8+ d7 Qb8 Rc1 h1Q Ra6 Rb5 Rh6 Rb6 Qc3 Qd1 Rh1 Bc5 Qe5 Qd3 Qh2 f1R+ Qf4 Rd1 Qh2 Re6 Qhc7+ Ke7 d8R+ Bd7 Kg4 Bg1 d6+ Kf6 Bd5 Ba7 Kf4 Ba4 d7 Qa6 Kg4 Kg7 Kf5 Rd6 Rde8 Rb6 R8e7+ Kf8 d8R+ Be8 Rd6 Bc6 Red7 Ba4 Bde6 Ke8 Rd2 Bb5 R7d4 Bc6 Qg7 Ba4 Bd5+ Kd8 Qgc7+
1qqQ2kN/R3p3/1qpR1bN1/1r4NR/PB4NK/4bN2/1r2b1Bn/4QN2 b - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 h5 gxh5 f5 e4 c6 exf5 Qc7 d4 Rh6 b4 axb4 d6 Kf7 d5 Na6 d7 Qd8 d6 Nc7 dxc7 Rh8 f4 g5 Kf2 b5 Kg3 b3 h4 b2 h6 b4 h7 g4 h5 b3 f6 Ba6 c8R Bd3 f5 Ba6 h6 Bg7 Bg2 Qa5 d8Q Ra7 Bd2 Qb4 Nf3 Bf8 Kh4 Bf1 Qe1 Qb6 Bb4 g3 Nbd2 Be2 Nf1 b1Q a4 b2 Rc7 Qa2 Rd1 b1Q Rd6 Ra5 Ra7 Qe6 Rh3 Qd7 Rh2 Bg7 Rh3 Qe8 Rh1 Kf8 f7 Nf6 Rh3 Rg8 h8N Ng4 h7 Ba1 Ng6+ Kg7 f8N Nh2 h8N Rb5 Nh7 Bf6+ Nhg5 Qb8 Bh1 g2 Nge5 g1B Ng4 Be3 Bg2 Rf8 Qd7 Qec8 Qd8 Ba1 f6+ Kg8 Kg3 Qb2 Rh5 Qd4 Kh4 Qdb6 f7+ Kg7 Qb1 Bf6 Qd1 Re8 f8N Kg8 Nfg6 Rf8 Qc7 Rd8 Qe1 Rd7 Re6 Rd2 Rd6 Rb2 Qd8+
4Q3/k1NBp1b1/4N1Rn/pB4P1/rRbnBK1N/1bB2n1r/R1r5/3R2B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g6 f4 g5 fxg5 Nc6 h4 Bh6 g4 Kf8 g6 Ke8 h5 Qd7 g5 Bf8 g7 Qe6 Qf3 Nb8 Qd1 Qg6 hxg6 Bd7 Nf3 Be6 Ng1 Bc8 Kf2 Kd7 Kg3 a5 b4 c5 d4 Kc7 b6+ Kb7 b5 h5 d6 c4 d5 c3 d7 h4+ Kf4 e3 d8R e2 d6 e1R d7 c2 Na3 h3 Ra2 h2 Be3 c1N Qa4 Re2 Nf3 Nb3 Nh4 Nc6 Bg1 Nh6 g8B Rb8 g7 Nc5 Bd5 Ka8 g8B Nb3 Be4 Ba6 Be6 Nd4 b7+ Ka7 Re8 Re3 d8N Nb3 Bd7 Ra8 b8R Nd2 Ne6 Bg7 Rg8 Nd4 Bfd3 Bf8 Rg6 Rh3 Rb6 Rc8 Rb7+ Ka8 b6 Bg7 Nb5 N2f3 Bec6 Rhg8 Bde4 Nf7 Be8 Nh6 Bf2 Nc2 Rd1 Rd8 Bg1 Rd4 Rd7+ Kb8 b7 Rb4 R7d3 Ncd4 Rb3 Rc4 Rbb2 Rc2 Nbc7 Ka7 Bd3 Bb5 Bce4 Ba6 B8c6 Ra8 Be8 Rb8 Qd7 Bb5 Qc8 Ba6 Bd7 Bb5 Qe8 Ba4 Rb6 Bb3 Nd5 Rbc8 Bf1 R8c5 Ndc7 R5c4 Be2 Ra4 Rb4 Ne1 Beb5 h1B Bed3 Bhd5 Be4 Nf3 Na6 Bdc4 b8B+ Kb6 Be5 Ka7 Ke3 Nc6 Bc3 Ncd4 Nac7 Rg2 Kf4 Rb2 Bd3 Rc2 Be4
1B1Nn3/2p4r/BNP1n3/r1r4R/1b3B1k/1RR2KNB/Qpq2R1r/r5B1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 d4 f5 dxe5 b5 e4 Ba6 exf5 axb4 a4 b3 Nf3 b4 Ng1 Bb5 axb5 Ra4 Bc4 Ra7 Bf1 Ra8 Ke2 Kf7 c4 g5 h4 d5 f4 g4 f6 b2 f5 b3 c5 d4 b6 g3 h6 d3+ Kf3 g2 b7 d2 h7 Qd6 h5 Ra2 h6 Bg7 c6 Qd4 e6+ Kf8 f7 Ke7 f8B+ Kf6 e7 Kg5 e8B Qh4 f6 Qd4 f7 Ra8 Qe2 Qe5 Nc3 b1R Rh5+ Kg6 Ra3 d1R Bc5 Na6 b8B Qd6 Bd7 Rb2 f8R Nf6 Bf4 Qd2 Bh3 Ra1 Nd5 Qc2 Nb6 Ne8 Qf2 Bc3 Ne2 g1R Ng3 Be1 Bd4 Nc5 Ba6 Rc1 Qh2 Rh1 Bg1 Ne6 Rc5 Rbb1 Rc3 Ra1 Qe2 Ra7 Qc4 b2 Qa2 Rh2 Rab3 Rd1 Rf7 Rd5 Rf5 Rc5 Rf8 Rg8 h8R Rg7 h7 Rd7 Rf5 Rg7 Rh5 Kf6 Rg8 Bd2 h8N Rh7 Nf7 Ra8 Be2 Raa5 Nd8 Be1 Ba6 Bd2 Rd3 Bb4 Rh8 Kg6 Rdc3 Kf6 Rd5 Kg6 Rd2 Kf6 Rf2 Kg6 Be5 Kg5 Bf4+ Kh4 Rg8 Rf7 Rg5 Rh7 Rh5+
B3Rb1R/1r1B4/4Nr2/1b1n4/2RpB1b1/Bq1NbNrP/2p1R3/1Q2RK1k b - - 0 1 legal: proof: f4 e5 a4 exf4 g4 b5 axb5 h5 gxh5 Qf6 c4 Bd6 b6 Qd8 b7 Bf8 b4 c5 d4 Qc7 b5 Qc6 b6 Qb5 cxb5 c4 Nc3 Na6 Nb1 Nc5 dxc5 Rh7 Ra4 Rh6 Ra1 Rh8 b8N Ke7 e4 Kf6 e5+ Kg5 b7 Kh4 e6 g5 e7 a5 e8B d5 b6 f5 h3 Kg3 h6 f3 c6 a4 c7 f2+ Ke2 d4 h7 c3 Bg2 f1B+ Ke1 g4 Bg6 f4 Ra2 f3 Re2 c2 Nc3 a3 Na6 a2 b8R a1Q b7 Qb2 Na4 Ne7 Nb4 Qb3 Nd3 Nd5 Be4 Ra7 Ba3 Rg8 h8R Rg5 Nac5 f2+ Kd2 Bf5 Rc8 Rg8 b8R Rb7 Re8 Bd7 c8B Bb5 Re1 Be2 Ne6 f1R Bd7 Rf6 Nf3 Rg5 Rbc8 Rg8 Nfg5 Bf3 Rhg1 Kh2 Qb1 g3 Rc4 Bg4 Re2 Rgg6 Bgf3+ g2 Ke1 Rg8 Kf2 Rg7 Rge1 g1B+ Kf1+ Bf2 Bh7 Rgg6 Be4 Rg8 Nf3+ Kh1 Bhg6 Be3 Bf7 Bf5 Bh5 Rg3 Bg6 Bg4 Bgf5 Ne7 Bec6 Nd5 Be4 Rb8 Ba8 Rb6 Qa2 Rb7 Qb1
Bn4K1/1N5R/N1kNBR2/pnQ2R2/2PrqbR1/pb1Q4/1RR4n/b3b3 b - - 0 1 legal: proof: b4 a5 e4 c5 g4 h5 gxh5 f5 exf5 b6 d4 Ra7 dxc5 Rc7 a3 Rc6 Bd2 Rd6 Bc3 Rd4 b5 a4 Ba5 Rb4 axb4 bxa5 Ke2 e5 Kd3 g5 Ke4 a3 Kd5 d6 h4 Kd7 f4 e4 c4 g4 f6 e3 b6 g3 b7 e2 c6+ Kc7 f5 e1B f7 g2 f6 Qe8 b5 Nd7 b8N Be7 Ke6 d5 f8R d4 b6+ Kd8 f7 d3 b7 Kc7 h6 d2 h5 Bf2 h7 Bfc5 h6 Bcd6 Rh4 Bh2 Nc3 Bhd6 Nh3 g1B Nb5+ Kb6 c7 Bd4 Nf4 B4e5 Nd3 Qd8 Rc1 Bg3 Rg4 Beh4 Bg2 Bgf4 Na6 Bb4 b8R+ Bb7 c8B Bhg3 Ndc5 Qh4 Nd6 Ngf6 Rc2 Be1 Qf3 d1N Qd3 Rg8 h8R Bbc3 h7 Ba1 Be4 Rg5 Rhg8 Rf5 h8R Nc3 R8g6 Nb5 Rh7 Rd5 R6g5 Kc6 Rf5 Ba8 Ncb7 Qh1 Re8 Qf3 f8Q Qh1 Kf7 Qh4 Rgg2 Ng4 Re6 Nh2 Ref6 Qg4 Rg3 Qe2 Bh1 Qe4 Rg4 Rd4 Kg8 Nc3 Nbc5 Nb5 Rb7 Nb8 Be6 Na7 Rb3 Nb5 Rbb2 Bb7 Bg2 Bc8 Bf3 Bd7 Ncb7 Be8 Bh1 Bh5 Rgg7 Bf3 Rg4 Bd1 Ne8 Rd5 Rf2 Rd4 Nbc5 Bb3 Rfc2 Kb6 Qe7 Qe5 Ba8 Qe3 Nb7 Kc6 Qb4 Qe5 Ned6 Qe4 Qc5#
1B2R3/1rR1q2Q/1B5N/3Nq1q1/N2N2pk/1np1N1qr/NB5P/2Qbn2K b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 h5 e4 f5 exf5 b4 g4 b3 g5 e6 Bh3 Bb7 Bg4 hxg4 axb3 Bd6 b4 Be7 b5 Bf6 gxf6 Bc8 Kf2 Kf7 Kg2 g5 b4 c5 d4 a5 b6 c4 b5 a4 d6 e5 d7 c3 d5 e4 b7 g3 b6 a3 d6 a2 Na3 e3 Ne2 g4 Nd4 e2 Re1 Qe8 d8N+ Kf8 d7 Qe3 f7 Kg7 f8Q+ Kh7 f6 Kg6 f5+ Kh5 f7 Nf6 Kh1 Qd2 Qe7 Qh6 f8N Ra7 Bb2 Qd2 Qh7+ Kg5 Nf7+ Kf4 d8B Nfd7 f6 Nc5 Nd7 Nba6 b8N Nb4 b7 Nbd3 Na6 Nb3 Ndc5 Be6 Nh6 Kg5 b8B Rb7 Nc4 Kh4 f7+ Qg5 f8N Bf7 Rb1 a1Q Na4 Qa3 Qc1 Qae7 Nfe6 Bg8 Nf4 g2+ Kg1 Bd5 Nb4 Bf3 Ne3 Qee5 Bb6 Qee7 Rf1 e1Q Na2 Bd1 Nfd5 Qe2 Rf8 Ne1 Re8 Qb5 Nf4 Qbe5 Nfd5 Rf8 Ba3 Rf3 Rb2 Rg3 Rf2 Rh3 Rf7 Q7d6 Rc7 Qde7 Bb2 Bc2 Kf2 g1Q+ Ke2 Qgg3 Kf1 Q3f4+ Kg1 Bd1 Kh1 Qf3+ Kg1 Qfg3+ Kh1
5K1k/B2bRR2/RR2rR2/NBrB4/N2pq2b/2PB4/2Npr1qn/2r1Q3 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Nb3 g5 Na5 g7 Nc4 Bd2 Ne5 Bc1 Ng6 hxg6 Qc7 Rh6 Qb6 Rh1 Qd8 Ke2 h5 Kf3 e5 Ke4 a5 Kd5 d3 b4 h4 f6 h3 b6 h2 b5 e4 f7+ Ke7 b7 d2 b8N e3 b6 d6 b7 e2 Nc3 e1Q Na4 Rh3 c3 Qe8 Nc6+ Kd7 b8R Rh4 Bb5 Rc4 Ne2 Qf2 Rb6 Ra6 Re1 h1R Ned4 Be7 f8R Nh6 g8R Rh2 g7 Ng4 g6 Bh4 Nc2 Qg2+ Rf3 Qe7 Rf8 Qe3 Rf7+ Ke8 g8B Bd7 g7 Qe7 Bh7 Rc5+ Kd4 d5 g8B Qe6 R7f6 Qee2 Bf7+ Kf8 Bhd3 Kg7 Rf2 Qef3 Re7 Kh8 Qe1 Qf5 Be6 Qh7 Rff7 Qg6 R2f6 Qh7 Nb2 a4 Na5 a3 Na4 a2 Ba3 Ne3 Ke5 d4+ Kd6 Nf1 Bd5 Qhe4 Rb1 a1R Rc6 Ra8 Ra6 Re8 Rb3 Rc1 Rb2 Rc7 Bc5 Rcc8 Ba7 Rc5 Qd1 Qgg6 Qe1 Re2 Bbc6 Qg8 Rbb6 Qgg2 Bcb5 Nh2 Ree6 Rg8 Ke7 Rg6 Kf8 Rh6 Ree7 Rg6 Rf2 Re6 R2f6
RQ2r1b1/n4r1Q/1q1Q2r1/1NrN2nN/2p3k1/2B1BN1q/Pp1N4/1N1K3R b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 g3 a3 bxa3 Qd7 a4 Qd6 a5 Qd8 f4 h5 f6 e6 f5 Ba3 Be2 Bd6 Bg4 Bf4 gxf4 hxg4 d4 Kf7 h4 c5 d6 b5 d5 g5 d7 c4 h5 g3 h6 g2 d6 b4 a6 e5 h7 b3 a7 b2 Qd3 g4 Be3 e4 Kd1 g3 Nf3 Qc7 d8N+ Ke8 f7+ Kd7 f8N+ Ke8 d7+ Ke7 Nc6+ Kf6 d8Q+ Qe7 Nfd2 Bb7 Nb4 Nc6 Ne6 Nh6 Qb8 Rc8 h8B+ Qg7 Ng5 Nf7 Ngf3 Ng5 Re1 g1R Nd5+ Kf7 f6 Ke6 f7 Kf5 f8N g2 Qc2 Qc3 Nd7 Kg4 f5 Re8 Qd6 Rac8 a8N Na7 f6 Rc5 f7 Re7 f8Q Rf7 Qfb8 Qd3 Ndc7 Bd5 Nb5 Qa3 Bc3 Be6 Bed4 e3 Qh7 Bd5 Nac7 e2+ Kc2 Be6 Be3 Bd5 Rf1 Be6 Nd5 e1R Nf4 Re2 Nh5 Re1 Nb6 Bd5 Bf2 Re8 Kd1 Be6 Ba5 Qd3 Nd5 Qf5 Bc3 Qd3 Nfd4 Qh3 N4f3 Rh1 Qh2 g1Q Be3 Qf2 Qhd6 Rg1 Ne1 Qf6 Rf5 Rg2 Nef3 Qd8 Rf6 Qb6 Rg6 Rf5 Rf6 Bg8 Rf8 Rf7 Qb7 Re6 Ra8 Re2 Qbb8 Rg6 Bf2 Re5 Be3 Re8 Ke1 Qg2 N1a3 Ne6 Rd1 Qh3 Nab1 Ng5 Ke2 Nc6 Rh1 Na7 Kd1
KRQ2Qk1/2qN1N2/Q4rp1/2R3qQ/5B1r/3Q2Qp/B1P2r1r/1b2bn1B b - - 0 1 illegal: No possible last move, all moves rejected
NQ2Rq2/3QPB1k/3nbp2/Bbp1R1bn/3R4/4Bq2/b4r1B/2NBK2B b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Ra5 bxa5 Bg4 Ra2 Bf5 Ra1 Bc8 d4 h5 g4 c5 e4 h4 b6 a3 b7 h3 d6 a2 d7+ Ke7 g6 Kf6 g5+ Kg7 a6 f3 a7 f6 a8B h2 d5 Nc6 b8B Rh7 e5 Ba6 e6 Be2 e7 Rh4 d6 Qb6 d8Q Qb2 d7 Bd3 Ne2 Na7 Nbc3 Bf5 Nd5 Nh6 Nc7 Qb7 Be3 Nb5 Nc1 Rf4 Be2 Be6 Qa4 Nf5 Bd1 Kg8 g7 Kh7 g8R Bh6 Re8 Ng7 Rb1 a1Q Rb4 Nd6 Rd4 Nh5 g6+ Kg7 Rg1 h1B Rg5 Qab2 Rgd5 Bg5 Re5 Qg2 Qa7 Qc8 Be4 Kh6 g7 Qh3 Bc6 Kh7 Na8 Rf5 Qdb6 Bg2 d8B f2+ Ke2 f1B+ Ke1 Bgd5 Qd7 Bb3 Bh1 Rf2 Bdc7 Bb5 g8B+ Kh8 Bd8 Qf3 Bf7+ Kh7 Bbc7 Ba2 Qb8 Qcb7 Ba5 Qbe4 Bdc7 Qg6 Bf4 Qh6 Bh2 Qf8 Bd2 Qd5 Be3 Qf3 Ba5
B4R2/1P1rq2b/2R1R3/3Qp2n/KB2pRQq/2qn2qN/Nk4r1/B2R3R b - - 0 1 illegal: No possible last move
2QB1nb1/qNr2QN1/1bN5/4BbRb/1Kb1B2k/Pp1p4/b1B1R3/1B4B1 b - - 0 1 illegal: No proof kernel
Kn4b1/bN6/p2QB1nP/1N4kq/4q1R1/1QN3Nq/RpN1N2B/1Bqq4 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 cxd5 b4 g4 hxg4 b3 g5 Ke2 c5 Bg2 c4 Bf3 c3 Bg2 a6 Bf1 Rh6 Ke1 Rc6 Bh3 Rb6 Bf1 Rb5 axb5 Ra7 Ba3 Rc7 Bc1 Rc4 bxc4 Bg7 Ba3 Bh6 Bc1 Bf8 Ke2 Kf7 Kd3 Kf6 Kd4 g3 Kc5 e5+ d6 c2 f4 g4 d4 g2 h4 e4 h5 g3 b6 b3 d5 b2 b7 e3 h6 e2 Nc3 e1Q Nge2 Qd7 Kb6 g1Q+ c5 g2 Ka7 Qef2 Rh4 Qd4 Ra2 Qh2 Rg4 g1Q Ng3 Qgf2 Ka8 Qh7 c6 Qf7 c7 Qh4 d7 Qe7 d8Q Qc5 d6 Qb5 d7 Bg7 Bd3 Nc6 b8N Nb4 Nc6 Qf1 Nd4 Qh2 Nde2 Kf7 f6 Qa4 f5 Qff2 Bf4 c1Q Qb3+ Qe6 Bb1 Ne7 Bd6 Nec6 Qe7+ Kg8 d8N Kh7 f7 Qfg2 f6+ Nd3 Nb7 Qge4 Qd7 Qh5 f8N+ Kh8 f7 Bd4 Bf4 Nde5 Qd6 Qd7 Ne6 Nb8 f8N Ba7 N6d4 Ng6 Nfe6 Kh7 Nc2 Qa3 Qf8 Qdd1 N6d4 Be6 c8B Bd5 Ndb5 Bg8 Qa4 Qb3 Qd6 Qbe6 Qb3 Qd7 Rg5 Qdh3 Be6 Ne7 Rc5 Kg6 Rg5+ Kf6 Rg4 Ng6 Nf1 Qhf3 Bh2 Qfh3 Rh4 Kg5 Nfg3 Qee3 Rf4 Qe4 Rg4+
R1k4N/4r3/2nb2N1/NP4B1/n4B1K/Q1pBpN2/rb1pRN2/2BqrR2 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 c4 b3 axb3 Bb7 b4 Na6 b5 Bc8 b6 Nb8 b4 d6 b5 Nh6 b7 Ng8 b6 Rh6 Bg2 Rh7 Bf1 Rh8 Bg2 Bd7 Bf1 Bb5 cxb5 Qc8 Ba3 Qd7 Bc1 Qd8 Qb3 Nf6 Qa4 Ne4 Qd1 Nxd2 f4 Kd7 Kf2 e5 Kg3 c5 h4 a5 h6 g5 f6 a4 h5 e4 f5 d5 f7 e3 f6 d4 h7 d3 h6 c4 Rh2 a3 Nc3 g4 Qb3 a2 Nf3 Bb4 f8N+ Kd6 f7 Ra7 Re2 Ba3 Nd1 c3 Ng6 Kd7 f8R Nc4 Nf2 Nc6 b8B Kc8 Bf4 Re7 Kh4 Bd6 Qa3 g3 Rg8 g2 b7+ Kd7 b8N+ Kc8 Rb1 a1B Rf8 Rg8 h8N g1R h7 Nb6 Re8 Bb2 Rf8 Na7 Nc6 Na4 Na5 Nc6 Ra1 Kc7 Rf5 Qd7 Rf6 Ra8 Rf8 Ra7 Ra8 d2 Re1 Qe6 Bd3 Qb3 Re2 Qd1 Qa2 Rg5 Nc4 Nc5 Qb3 Ra4 Na5 Ra2 Qa3 Na4 Rb1 Rg1 Bg5 Ba1 Bb2 Qb3 Rbe1 Qd1 Bc1 Rg3 Rh1 Rg1 Bf4 Re1 Rf1 Nd4 Nf7 Nc6 h8B Bb2 Bf6 Kd7 B6g5 Kc7 Nfh8 Kd7 Ra7+ Kc8 Ra8+
1rR5/1n1N1KRq/1P2BR2/3QpN2/1npN1B2/3Nb1pN/8/1Q1Nrrkb b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 c5 f4 g5 f6 b3 h6 b2 d6 c4 b6 g4 d7 e6 f5 g3 h7 Ba3 d5 Bc5 d6 Ra7 f7 Na6 f8N Qe7 d8Q Ba3 d7 Nc5 f6 Ra4 f7 Bb4 Bf4 Nh6 Bh3 Rg8 h8N Na6 Nc3 Rg6 Qb1 Rg7 Nhg6+ Kh5 Nd1 Qd6+ Kf6 e5+ Ne6 Ra2 f8N Bc3 Nh4 Be1 Nf5 Qc7 Nc5 Rg8 Nd3 Nb4 Ke7 Ra8 Ra7 Bf2 Rb7 Be3 Ke8 Ng4 Kf7 Ra1 Ra7 Bb7 Qa8 Bg2 Qd5 Nf6 Rb7 Qc5 d8N Qc7+ Nd7 Ne4 Ne6 Nc5 Ned4 Rb8 Ra7 Qd8 Rc7 Qh4 Rc6 Nb7 Rf6 Qg4 Ngf3 Qh4 Ng5 Bf3 Rf1 Be4 Rg6 Bh1 Rg7 Rg8 Nd6 Rb8 Be6 Qh3 N6f5 Kg4 Rf2 Qh7 h4 Ra7 h5 Ra1 Qc1 b1R h6 Rb2 Rf3 Rf2 Qb1 Rf1 Rf2 Qh8 h7 Re1 Ne4+ Kh3 Rf1 Kg2 Ng5+ Kh2 Rf2+ Kg1 Rf3 Qc8 h8R Qc6 Rc8 Qa4 Rf2 Qc2 Rh2 Rf1 Rh6 Qh2 Rf6 Qh7 Qd6 Ra2 Qc5 Re2 Qd5 Ree1 Nh3+
R3r1B1/1B1k1RB1/1R1p2K1/3Bp1nB/Pqq2pn1/1B3b2/6NQ/Q2bNb2 b - - 0 1 legal: proof: e4 c5 d4 g5 dxc5 a5 b4 axb4 h4 Nf6 hxg5 Qb6 e5 Qd8 e6 Ng8 f3 b5 f4 d6 f5 Ra7 Rh3 Rd7 Rh1 Qa5 Rh4 Kd8 Rh1 Kc7 exd7 e6 f6 Be7 fxe7 Kc6 Ne2 Qb6 Ng1 Qd8 Ke2 f5 Kd3 h5 e8B f4 Ke4 b3 c4 h4 g4 h3 a4 b2 g6 h2 g5 b4 g7 b3 g6 Kc7 c6 Rh3 c5 Qf6 d8R Na6 Bg2 Rh4 Na3 b1B+ Nc2 b2 Nf3 Qf8 Ne1 Bb7 Ra8 Nh6 g8B Rh3 g7 Rb3 Bh5 Rd3 Ne3 Ba2 Rb1 Nf5 Bgf7 Qh8 g8B Bc4 Bd2 Nh6 Bc3 Rd2 Bg7 Ng4 Qc1 e5 Kf5 Rc2 Bgd5 Bf1 N3g2 Rc4 Rg1 h1B Kg6 Rb4 Bb3 Bc8 Qd1 Rb8 Bfd5 Bd7 Qc2 Re8 Qf2 Bc8 Qe2 Kd8 c7+ Kd7 Qd2 Bb7 Qf2 Bc6 Qg3 Bcb5 Qh2 Bbe2 c8B+ Kd8 c6 Nc7 Kf5 Ne6 Kg6 Bd1 c7+ Ke7 Ba6 Ng5 Bab7 Kd7 c8Q+ Ke7 Qc3 Kd7 Rc1 b1Q+ Rc2 Qa2 Qa1 Qa3 Rc6 Qb4 Rb6 Qc4 Nh4 Bhf3 Rg2 Qb4 Rb2 Qc4 Nhg2 Qb4 Bgf7 Qf8 Bg8 Qe7 Rc2 Qd8 Rcc8 Qc7 Rcb8 Qcc4 Rc8 Re7 Rf8 Re8 Rf7+
2q1r3/1r2N2p/p1N2R2/k3B3/2Rpn2r/2b2KB1/1RN2BPB/qBnN3Q b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 f4 f5 fxg5 b5 axb5 Ba6 exf5 Bb7 h3 Be4 Ke2 Bf3+ Ke1 Bg4 hxg4 Qc8 Qd3 Qc7 Qd1 Qd8 Kf2 d5 c4 Kd7 b4 Kc7 g6 Kb6 f6 e5 c5+ Kb7 g7 d3 b6 d2 b5 a6 f7 d4 g5 e4 g6 e3+ Kf3 e2 c6+ Kc8 b7+ Kc7 b6+ Kd6 c7 Kc6 c8R+ Kb5 Ra2 Qe8 Nc3+ Kb4 Rb2+ Ka5 Rh6 e1R Rc4 Re5 Bd3 Bd6 f8B Rb5 Bb1 Ba3 Bd6 Rc5 Bh2 Ne7 g8N Qc8 g7 Rd5 Rf6 Nf5 Ne7 Ra7 g8N Nd7 b8B Rb7 Bbg3 Bb4 Qf1 Rb5 Nd1 Nd6 Be5 Nc5 Nc6+ Ka4 Nge7 Nde4 Beg3 Re8 Qe1 Nb3 Bf2 Rd7 b7 Rh5 b8B Rb7 Bbg3 Rh6 Ke2 Rh5 Nf3 Rh4 Qh1 Kb5 Ne1 Bc3 Kf3 Kb6 Rc2 Kb5 Ba3 Nc1 Bad6 Kb6 Bde5 Kb5 Ne3 d1Q+ Re2 Qa4 Nd1 Qa1 Nc2 Kb6 N2b4 Kb5 Rb2 Kb6 Nb8+ Kb5 Nc2+ Ka5 Nbc6+
NQb1rBk1/1B2R3/1r3R2/NnpB3b/pR4p1/P1r4b/nB4RN/2B4K b - - 0 1 legal: proof: g4 c5 c4 f5 e4 d6 exf5 Kf7 f6 Ke8 b4 Na6 bxc5 Nb8 c6 Bf5 c5 dxc5 Qe2 Bd7 Qd1 Bc8 h4 g5 f4 Nd7 f5 Qb6 f7+ Kd8 Bb2 Bh6 Bc1 Nb8 f6 Qc7 Qb3 Qd7 Qd1 Qf5 gxf5 g4 Qb3 Bf4 Qd1 Bg5 hxg5 Be6 Rh3 Bd7 Rh1 Bc8 Kf2 a5 Kg2 h5 f8R+ Kc7 d4 Kd6 c7 b5 g6 e5 a3 e4 g7 b4 d5 h4 f7 Ke7 d6+ Kf6 d7 a4 d8B+ Ne7 g8B Kg7 Ra2 e3 Nd2 b3 Re8 e2 f8R e1R Ba6 b2 Ngf3 b1B Qb3 Nd5 Nh2 Nb4 Nc4 Ra7 Rf6 Re3 Bb7 N8c6 Na5 Nd4 Bgd5 h3+ Kg1 Rc3 Rg2 Rg8 Re7+ Kh8 Qb2 Na2 Qb6 Ra6 Qb3 Bd7 c8N Nb5 Nb6 Bc8 Na8 Rb6 Bc7 Re8 Be5 Rc4 Beb2 Rc3 Qb4 Bd3 Qf4 Bb1 Qb8 Bc2 Rfe6 Kg8 f6 Bg6 Re4+ Bf7 R4e6 Bh5 f7+ Kg7 f8B+ Kh8 Rf2 Kg8 Rf4 Na7 Rb4 Nb5 Nf3 h2+ Kg2 Rd6 Rg1 h1B+ Kh2 Rb6 Rf6+ Be6 Rg3 Bg2 Kg1 Bh3 Kh1 Nc7 Rg2 Nb5 Rff7 Bf5 Nh2 Bc8 Rf6+
6Nb/k3b2p/B1BrBNN1/2p1pbQ1/1n1R3R/2n3B1/1R1r2P1/r1N2N1K b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 fxg5 f5 h4 b4 e4 fxe4 h5 b3 axb3 Bh6 b4 Qd6 b5 Qg6 hxg6 Bf8 Kf2 Kd7 b4 e5 d4 c5 g7 Kc7 g6 Kb7 d6 a5 b6 a4 d5 a3 b5 a2 d7 Ra4 d8N+ Ka8 d6 Bf5 b7+ Ka7 d7 Nf6 g8B Nh5 g7 Bg6 Bf4 Rd4 Qc1 Kb6 Rh4 Na6 b8N Nf6 Nf7 Nb4 d8N Bd6 Nd2 Ne8 Ne2 e3+ Kg1 Bh5 Kh1 Nd5 Nd7+ Ka7 b6+ Ka6 b7 Bg4 b8R Nef6 Rb2 Nb6 Ne6 Nbd5 Nh6 Bf5 Bg3 Be7 Nef8 Nc3 Bd5 Ka7 Ng6 Rd8 Bc6 Nfd5 g8B Nb4 Nf6 R4d6 Be6 R8d7 Rab1 a1R Nhg8 Rd8 Nd4 e2 N4b3 e1B Ba6 Bf2 Nf1 Be3 Rd4 Bh6 Qg5 Bg7 Nc1 Bh8 Rh4 R8d7 Rd2 Rd8 Rdd4 R8d7 Rb2 Rd8 Rc4 Rd2 Rcf4 R8d6 Rd4
BBN2BK1/N2rp1N1/1b3r2/1N2pP2/Q6R/4b1kN/2bp2qR/RB3b1n b - - 0 1 legal: proof: b4 a5 e4 b5 h4 g5 hxg5 c5 d4 f6 dxc5 a4 e5 Nc6 a3 Na5 bxa5 b4 axb4 fxe5 b5 Ra7 Bf4 Ra6 Bc1 Ra8 Kd2 Kf7 Kc3 Kg6 Kc4 Kf5 Kd5 h5 c4 d6 g4+ Kg6 f4 a3 f5+ Kg7 c6 h4 g6 Kf6 c5 a2 a6 h3 a7 h2 g7 Qc7 g5+ Kf7 b6 Nh6 g8R Ng4 g6+ Kf6 b7 Bd7 b8B Qb6 g7 Rh6 c7 Bb5 c8N Nf2 c6 Qb7 Rh8 Rg6 Bg2 Bf1 Na3 Qb2 g8B Bh6 c7 Be3 Qa4 Kg5 Rh4 Rf6 Nb5 Qe2 Bf7 Qg4 Be4 Kf4 Nh3+ Kg3 Bb1 Bb6 Bh6 Qg5 Kc6 d5+ Kd7 d4 Ke8 d3 Kf8 d2 Bg7 Qg4 Kg8 Qe4 Bd5 Qg2 Bf8 Be3 Ncd6 Bb6 c8N Be3 Rg1 h1B Ne8 Bb6 Ng7 Be3 Bd6 Rb8 a8N Rb7 Nba7 Rd7 Nc7 Bb6 Ba8 Be3 Bc2 Bb6 Rb1 a1B Ncb5 Bad4 Ra1 Be3 Bb1 Bd3 Rc1 Bc2 Qb3 Qb7 Re1 Bg2 Re2 Bf1 Qa4 Nh1 Rh2 Qg2 Bb8
b2r1B1K/p6B/1q2k3/5n1B/2R5/1bnpP2Q/1N1RNpnR/NN1n1BN1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 axb5 f4 d4 cxd4 Na3 g5 Nb1 Na6 h3 Bh6 h4 Rb8 Qd2 Rb6 Qd3 Rf6 Qd1 Rf5 gxf5 g4 Bd2 Nc7 Bc1 Bg5 hxg5 Na6 Kf2 Ke7 b4 d5 c4 h5 g6 g3+ Kf3 g2 g7 h4 Kg4 d3 Kg5 h3 Kg6 h2 f6+ Kd7 c5 d2 e3 d4 e6+ Ke8 c6 d3 c7 f3 e7 Kd7 e8B+ Ke6 b6 f2 b7 Ke5 b8N Qd7 b5 Rh3 b6 Kd5 b7 Rh8 f7 Nc5 f8R Nh6 g8B+ Nf7 Kg7 Na4 Qg4 d1N Ra2 Ke5 Rd2 Nab2 Bh7 Qa4 Nc6+ Kd6 b8N Qc2 Nb4 Nc3 N8c6 Qa4 Nc2 Qa5 Na1 Qb6 Nd4 Be6 Nde2 Nh6 Qh3 Nbd1 Rf4 Bb3 Bh5 Rd8 c8N+ Kd5 Nd6 Nf5+ Kf7 Ke5+ Nc4+ Kd5 Nb2 Kd6+ Kg6 Ke6 Nf3 g1N Rg4 Nh4+ Kg7 Ng2 Rc4+ Kd5 Ng3 Nge2 Ng1 Nd4 N3e2 Kd6 Be8 Nf5+ Kh8 Rd7 Bh5 Ke6 Na4 Rd6 Ba3 Rd8+ Bf8 Kd5 Nf3 Ke6 Nb2 Ne1 Rg1 h1B Rg7 Bg2 Nfg1 Ba8 Rgg4 Ng2 Rh4 Qc7 Qf3 Qa5 Rh2 Qb6 Qh3
4N3/2RB4/2nr1RNR/P1K4p/3p1Q2/r2B1nR1/1Bb1pkr1/N1Br2bB b - - 0 1 legal: proof: f4 a5 e4 f5 d4 g5 fxg5 c5 g6 f4 dxc5 f3 g7 Qb6 g4 Qg6 h4 Qa6 b4 axb4 h5 Qg6 hxg6 f2+ Kd2 Ra7 g5 Ra4 Bg2 f1B Ke1 Ra8 Bh3 Bc4 Bg2 Be6 Bf1 Bf5 exf5 Ra7 Bb2 Ra4 Bc1 Ra8 Kd2 d5 Ke3 Kd7 Kd4 Kc6 a4 b5 c4 b3 a5 b2 f6 h6 f7 e6 Nh3 b4 Nd2 b1R Qf3 b3 Qf4 b2 Nb3 Ba6 Bd3 Ne7 g8R Rh7 g7 Bb5 g6 Ra6 Ra4 Ra8 Na1 Ra6 Rb4 Ba4 Rb6+ Kd7 Rf1 h5 Rf2 Bc2 c6+ Kc8 c5 Nd7 c7 Ne5 Rf3 Kd7 c6+ Kd6 c8B Rh6 c7+ Nc6+ Kc3 Kc5 Bd7 Be7 f8B Bd6 Rg3 Nf3 c8R e5 Rh8 e4 g8B e3 g7 e2 Rc7 Rg6 Rh6 Rg5 Bgh7 Rg4 g8N Rg5 Rg1 Rg2 Bg7 Be7 Nf6 Bd6 Bd2 Rd1 Bhe4 b1R Bc1 Rb2 Ne8 Ra2 Ng5 Bf8 Nf7 Be7 Nh8 Ra3+ Rb3 Bh4 Ng6 Bf2 Rf1 Bg1 Qg4 Ng5 Rf6 Nf3 Qh4 Ra8 Qf4 Rd8 Bdf5 Rd6 Bd7 Ng5 Bh8 Nf3 Qe3+ Nd4 Qf4 Rf1 Bb5 Rh2 Bh1 Rd1 Rf8 Rf2 Be5 Rg2 Rf6 Rg3+ Kb2 Rg2 Rg3 Nf3 Ba6 Re3 Bc3 d4 Ka3 Kd5 Nb3 Red3 B3b2 Re3 Ka4 Red3 Kb5 Rc3 Na1 Ra3 Qg5+ Ke4 Kc4 Rd2 Qg4+ Ke3 Kc5 Kf2 Bd3 Rd1 Qf4
1N1Q1N2/3nr1kN/2Q2bnR/2p3NN/qq6/N2R4/Qn1Ppp2/K1BBq3 b - - 0 1 legal: proof: e4 a5 a4 d5 c4 b5 cxd5 g5 axb5 Ra7 h4 gxh4 d6 Bg7 Na3 Bh6 Nb1 Bf8 f3 e5 Na3 Bb7 Nb1 Ra8 Na3 Bd5 exd5 e4 Nb1 e3 Qe2 Ra6 Qd1 Rc6 Bd3 Rc4 Bf1 Re4 fxe4 Bh6 Ne2 Bg7 Ng1 Bf8 b4 h5 g4 c5 b6 f5 e5 Kf7 b7 a4 d7 a3 d6 f4 e6+ Kf6 e7 h3 e8Q f3 g5+ Kg7 b5 h2 b6 a2 g6 h4 Qc2 f2+ Kd1 h3 Na3 Qc8 d8N Qf5 d7 Rh6 Ne6+ Kf6 d8Q+ Ne7 g7 Qg6 Qc6 Nd7 b8N Qg4+ Nf3 Qb4 b7 Rh7 g8N+ Kf7 Bg2 Bg7 Nf4 Bf6 Ng5+ Kg7 Bf3 Ng6 Qb3 Qa4 Kc2 Qb4 Rb1 a1Q Bd1 e2 Qa2 Qad4 Rb3 Qa1 Rg1 h1Q Rd3 h2 Rg2 Qe1 Nh5+ Kh8 Rgg3 h1N Rh3 Ng3 Rh4 Ne4 Rhh3 Nde5 Nd7 Re7 b8N Nd6 Nf8 Ndc4 Rh2 Nb2 Rh1 Bg7 Ngf6 Nd7 N6h7 Bf6 Rh4 Nc4 Rh2 Qd4 Rh4 Nb2 Kb1 Qa4 Ka1 Qdb4 Ng3 Kg7 Rh3 Qg4 Rh6 Qgb4 Nh5+
1RB2KN1/3Rp1B1/Pq1n2N1/4npB1/2q1k2N/np3B2/2R2QrN/3B1q1b b - - 0 1 legal: proof: e4 b5 d4 d5 exd5 Kd7 c4 Kd6 h4 g5 hxg5 a6 g4 Nf6 f4 Bb7 f5 Ne8 c5+ Kd7 g6 Ra7 d6 Kc6 d7 Bc8 g5 Nf6 b3 Ng8 f6 Bg7 d5+ Kb7 Rh6 a5 Rh1 Ra6 fxg7 Rd6 cxd6 Kb6 b4 axb4 Be2 Kc5 Bc4 Qf8 Bf1 Qd8 Kf2 h5 Ke3 f5 Kf4 h4 Ke5 c6 Ke6 b3 Kf7 b2 a4 b4 a5 b3 a6 h3 Qd2 h2 Be2 Bb7 Bd1 Rh6 Qf2+ Kc4 Nd2+ Kd3 Ngf3 b1N Ra2 c5 Nh4 c4 Nf1 c3 Rc2 Qc7 d8N Na3 d7 Nb1 d6 Qc4+ Kf8 Ke4 Nf7 Kd3 d8B Na3 d7 Bd5 Ne5+ Ke4 Ba5 Qb4 d8R Rh8 Rd7 Nf6+ g8B Bf7 g7 Bd5 g6 Bc6 Bg5 Ne8 Bb6 Qc4 Bd4 Nd6 Rg1 h1Q Nh2 Rh7 Be6 Rh5 Rg2 Qhf1 g8B Qb5 g7 Qb6 Rg1 Bb7 Bgf7 Nc6 Neg6 Ne5 g8N Rh7 Rg3 Rg7 Rd3 Bd5 Rd8 Bc6 Rb8 Ba8 Bc8 Bb7 Rb2 c2 Bc4 c1Q Rc2 Ba8 Rdd2 Bb7 Bce2 Bd5 Rc7 Qcc6 Rc2 Qc4 Bh5 Kd3 Rd7 Bh1 Bh6 Ke4 Bde3 Rh7 Bg7 Rh8 Bhe2 Rh5 Bd2 Rg5 Bc1 Rg4 Bg5 Rg2 Bf3+
QK3R1q/1B1P4/1R2pN2/1N2r3/nBn1qnBp/pNq1kb1N/R5R1/1R6 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 f5 gxf5 d5 e4 dxe4 f4 g4 h4 Bg7 f6 Bh6 f5 Bg5 hxg5 Ra6 Bh3 Rd6 Bf1 Rd5 cxd5 Bb7 Ne2 Ba6 Ng1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 b4 c6 g6 a4 f7 e3 f8N g3 b6 h4 g7 e2 b7 e1Q b5 a3 b6 g2 f6 Qe6 f7 Nf6 g8B Qe8 Ra2 Na6 b8N Nc5 b7 Nfd7 Qa4 Nf6 Nbd7 Qd8 b8R Rh5 Nh3 g1N Ba6 Ne8 Rb6 Nc7 Nh7 Bb7 Nc3 Nd3 Nhf6 Nf2 Nc5 Qdc8 Nb3 Nd1 d3 Qa8 Bd2 Ne2+ Kc4 Ke5 Kc5 Qf8 d6 Ne8 Nb5 Nf4 Bb4 Nc3 Rb1 Rf5 Bh7 Qh8 f8R Rh5 Bf5 Ba8 d7 Nd6 Bg4 Qf5 d8R e6 Nh7 Rg5 d4+ Ke4+ d5 Ke3 Bb7 Qc2 Ba6 Re5 Nf6 Qg2 Rb7 Qf3 Kb6 c5 Ka7 c4 Qa5 Na4 Kb8 c3 Rb6 Nc4 d6 c2 Bc8 Bc6 Bb7 c1Q Qa8 Qd5 Rd7 Qd3 Rg2 Bf3 Ra2 Qe4 Rc7 Nd2 Rcc2 Nc4 Rg2 Qc3 d7
2r1NB1R/1NBP1Bnr/3R1B1p/1R4Qq/3nk2p/r7/4n1pR/N2KR2q b - - 0 1 illegal: Other
1q3R1R/2NB2Br/1B2NK2/P7/bN1rpprN/p4Q1r/1k2B2n/3R1q1N b - - 0 1 illegal: No proof kernel
1n1R1k1B/1N3p2/RQ1P4/1q1bNB2/2N2n1N/1BrB1p2/1q3pN1/1n1K1nR1 b - - 0 1 illegal: Other
R7/5KQ1/npNbBp2/Qb1Bp3/qR1Q4/2Qn4/QnPbkN2/4QnB1 b - - 0 1 legal: proof: d4 c5 dxc5 a5 e4 d5 g4 g5 f4 h5 gxh5 d4 f5 Ra6 b3 e5 b4 axb4 Qf3 Rhh6 Qd1 Rhe6 fxe6 Rb6 Kf2 Rd6 Ke1 Rd5 exd5 Bh6 Nf3 Bg7 Ng1 Bf8 Ke2 Ke7 Kf3 Kf6 Kg4 b6 a4 b3 h4 b2 d6 d3 h6 d2 Kh5 Kf5 h7 Ke4 h8Q Ke3 c6 f6 Kg6 g4 c7 g3 h5 g2 a5 Nc6 d7 Bb4 e7 Bd6 e8Q Bc5 a6 Bb4 h6 Bb7 c8Q Qc7 d8Q Ba8 h7 Bc5 a7 Bb7 a8B Bd6 Rh4 Be7 Nc3 b1N Ne4 Bd6 Bc4 Nge7+ Kf7 Qb8 Qg7 Nb4 h8Q Nd3 Be6 Nd5 Qc3 Qc8 Nf3 g1B Qeg8 Nb4 Nf2 Na6 Rb4 Qc6 Nd4 Qa4 Nc6 Bh2 Qhh7 Bf4 Qe1+ Kf3 Qh2 d1N Be3 Nd2 Qh4 Bg5 Qhd4 Nf1 Qd7 Bc8 Qa7 Bd7 Bb7 N1b2 Qga8 Nac5 Qa5 Bh6 Q8a6 Bf4 Qac4 Na6 Qa2 Bg5 Nh1 Bh6 Bg1 Bf4 Nf2 Bd2 Na7+ Qc6 Ba8 Qe4 Bad5 Bb5 Qc1 Ke2 Nc6 Qh4 Qcb1 Qe4 Qe1+ Kf3 Qab1 Na4 Rb2 Ne3 Qdb4 N6c5 Qa6 Nf1 Rb3 Nb2 Ra4 Nb7 Qa2 Nc5 Raa3 Ba4 Qac4 Bb5 Ra8 Na6 Qba4 Bc7 Qaa5 Bd6 Qea1 Ke2 Qc5 Qa4 Rb4 Be7 Q5d4 Bd6 Qe1+
n4B1R/n2B1BNK/Pn1QB1B1/1pb3N1/1Q6/3Bp2p/qbbR4/1k3nR1 b - - 0 1 legal: proof: f4 f5 e4 fxe4 h4 b5 g4 c5 d4 g5 dxc5 h5 b4 a5 bxa5 Ra6 f5 Re6 f6 Re5 Nh3 Rf5 gxf5 g4 Ng1 Rh6 Ba3 Rg6 Bc1 Rg5 hxg5 Bg7 Ne2 Bh6 Ng1 Bf8 Kf2 Kf7 Ke3 d5 Kf4 g3 a4 g2 c4 h4 c6 e3 g6+ Ke8 Kg5 e5 a6 e2 g7 Kf7 c7 e1N c5 e4 a7 e3 a8B d4 c6 d3 a5 d2 a6 h3 Bd3 Nh6 Ba3 Qd5 Ra2 Bd7 c8B Bc5 c7 Ng8 Nc3 Ne7 Kh6 Nbc6 Na4 Na7 Nf3 g1B Kh7 Bh2 Rg1 Be5 Bb4 Be6 Bd7 Bb2 c8B Qc4 Qb1 d1N Bae4 Nc3 Qd1 Ncd5 g8B+ Kf8 f7 Nb6 Ng5 Ned5 Qb3 Ke7 f8R Kd6 f6 Ke5 f7 Kd4 Bg6 Bf5 Be6 Be4 Bcd7 Nf3 Rc8 Bf5 f8Q Nh2 Bgf7 Na8 Qd6 Nf1 Rh8 Qc2 Nb6 Qg2 Nc8 Be4 Qa4 Qc2 Ba3+ Kc3 Ne7 Ndb6 Nf5 Kd2 Ng7 Kc1 Qb4 Kb1 Bdc4 Qb3 Be2 Bc2 Bed3 Bc1 Bb2 Qd5 Bf6+ Qb3 Be7 Bb2 Bf8 Qd5 Ra3 Qc4 Rc3 Qb3 Rc4 Qa3 Rd4 Qa2 Bde4 Nc6 Rd2 Na7 Bd3
B2BK1Nr/7R/pR2Rrr1/1P2B2p/2pn1B1R/1rNk2nN/2Q2n2/3B2b1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 h3 g5 Qc2 f4 Qd1 Bf5 gxf5 g4 Ra3 g3 Ra6 Qg5 Ra1 Qg4 hxg4 Bc5 Ra2 Bb4 Ra1 Bf8 d4 Ke7 Kd2 Kd6 Kc3 c5 Kc4 h5 e4 a6 b4 g2 e5+ Kc7 f6 Kb6 f7 f2 d6 f3 Kd5 c4 Ke6 Nf6 d7 Ra7 d8B+ Rc7 d5 Nbd7 d6 Bh6 Ke7 Ng8+ Ke8 Bg7 f8B Bh6 g5 Nc5 e6 Bg7 d7 Ne7 g6 Bf6 g7 Rh7 g8N Bd4 Nh3 g1N Bg2 f1R Qc2 f2 Ba8 Nb3 Nc3 Ne2 Bf4 Rg1 Re1 f1R Bg7 Nc8 e7 Rg6 Bge5 Bg1 Rh2 Ng3 Re3 Nd4 Rh1 Ka7 b6+ Kb8 b7 Ka7 b8R Rh8 Rb6 Rb7 Nf2 Rb8 Rh4 Rb7 Nh3 Nd6+ Kf8 Nde4 e8B Nf2 b5 Rb1 Bf7 Rf6 Ke8 Rb3 Bd5 Rc7 Bf3 Rcc6 Bd1 Rcd6 Rc6 Rg6 Rc7+ Kb6 Rb7+ Kc5 Rb6 Ngf5 Bc7 Ng3 d8R Rdf6 Rd7 Kb4 Rh7 Ka3 Qf5 Kb2 Bd8 Kc1 Qb1+ Kd2 Bd6 Nc2 Re6+ Kd3 Qc1 Nd4 Bde5 Rg4 Qb2 Rgg6 Qc2+
7R/1qB2NN1/1pQ1Rrp1/2N3K1/1R2PnB1/N3pB2/Rbpq4/k3nRn1 b - - 0 1 illegal: No possible last move
4n3/p3p2N/PqQn3K/2q1B3/5rB1/Bb2pB2/N1RRpB2/nN1Q1Bk1 b - - 0 1 illegal: Other
2R1r2r/2r1Rp1B/R5nQ/B1PR4/3rp2n/1N3Rp1/Q1NRpN2/1q3k1K b - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 h5 g4 e5 gxh5 b4 a3 b3 f5 d6 Bg2 Be6 Bf1 d5 e3 Bd6 fxe6 Bc7 e4 dxe4 Nc3 Ba5 Nb1 Bb4 axb4 Qd7 Be2 Qd3 Bf1 Qd8 c6 Ke7 Kf2 Kf6 Kg2 Kg5 h4+ Kf4 c4 a5 d4+ e3 h6 g5 e7 g4 e8R g3 c5 b2 h7 a4 h5 a3 h6 a2 b5 Qd7 c7 Qg4 b6 Ke4 b7 Qh5 d5 Kf4 d6 Ra5 d7 Qf5 d8R Nd7 b8N Nb6 Nh3+ Ke4 Qd2 Ra4 c8R Nd7 Na6 Ne7 Nb4 Nf8 Rd5 Rg8 h8Q Ra6 h7 Ra7 Bc4 Qg6 Rf1 Nf5 Rf3 Rc7 Re7 Qb6 Kh1 e2 Ra8 Qg6 Ra6 Nh4 Qg7 Qb6 h8R Qb8 Qgh6 Rg4 Raa3 Rf4 Rad3 Qb6 Na3 b1R Nb5 Rg4 Nd4 Rb2 Rb1 a1R Ra3 Rba2 Rb2 Rg8 Ra7 Ra4 Bb3 Qb5 Bc2+ Qd3 Nb3 R1a2 Nc6 Rd4 Nb4 Ra5 Ra2 Rb5 R7a6 Rb8 Bb2 Rd8 Bc3 Rb8 Bd1 Qb1 Qb2 Rbc8 Qa3 Rb8 Rd2 Ra8 Qa2 Rb8 Rh7 Rd8 Rg7 Rh8 Rg8 Rb8 Nd3 Ra8 Ba5 Rac8 Ne1 Rd8 Rf4+ Ke3 Bc2 Ra8 Bf5 e4 Bh7 Nfg6 Rb8 Raa7 Ra8 Rcc8 Rb8 Rce8 Rc8 Rc7 Ng1 Nf3 Nc2+ Kf2 Rff5 Kf1 Nh3 Ra7 Rf4 Rc7 Nf2 Nfh4 Rf3
n3B2Q/1N1b2B1/r3kbRq/4nrB1/Bbn2B1b/b1PQB3/1r3R2/3N2KQ b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 f4 Kf7 Kf2 g5 h4 e5 b4 a5 b6 d5 c6 d4 h5 a4 c3 a3 b7 d3 c7 d2 f6 a2 h6 e4 f5 Bd7 c8B Bc6 b5 Bd7 b6 Nc6 b8Q Nge7 h7 Ra5 b7 Ne5 Qa8 Nd5 b8B Nc7 Nh3 e3+ Kg1 e2 Rh2 e1B Bb5 g3 Rf2 g2 Na3 g4 Ba4 Bb4 Nc4 Qf8 Qc2 d1N Qd3 Rg8 h8Q Nb2 Bg5 Qh6 Bb7 Rf8 Bbc6 Rb5 Na5 Nbc4 Nb7 Ba3 Rd1 a1R Ba7 Ra2 Bae3 Ra5 Rb1 Ra6 Rb6 Bb4 Rd2 Rb2 Nf2 Ba3 Nd1 Bh4 Rf2 Bb4 Qb8 Na8 Qbd6 Ng6 Qh2 Nge5 Qh1 Ba3 Kh2 g1B+ Kg2 g3 Bgf4 Ke8 f7+ Ke7 f6+ Ke6 Bg5 Rg8 f8B Bh2 Bgf4 Rg5 f7 Rf5 Bg7 Bb4 f8B Ba3 Kh3 g2 Be7 g1B Kg2 B2g3 Bd8 Bhe7 Kf1 Beb4 Bdg5 Bh4 Bcb5+ Kf7 Rg6 Bh2 B5f6 Ke6 Kg2 B2g3 Kg1 Bg5 Be7+ Bf6 Bc6 Bh4 Bd8 Bc8 Be8 Bd7 Bc7 Ncb6 Bg5 Nbc4 Bd6 Ng4 Bg3 Nge5 Bg3f4
NB6/1B4nQ/Q3b1r1/K2RQn1Q/b1N1Q1R1/P1B1bq2/3rk3/nnrn1Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kd7 Kd2 Kd6 h4 c5 f4 g5 h6 e5 h5 b5 f6 g4 h7 g3 f7 b3 Kc3 c4 Kb4 b2 f5 c3 f6 c2 a3 g2 h6 e4 Bf4+ Kd7+ d6 Kc6 Ne2 Kd5 Rh4 g1N Nd2 b1B Bg2 Nd7 Nc4 Nc5 Bg3 c1N d7 Qb6 d8B Qc6 Bb8 Ne7 Qe1 Ra6 Rg4 Ne6 Ba5 Bd3 Nd2 Bg7 f8Q Nb3 f7 Bc2 Qg8 Nh3 f8Q Nf2 Rd1 Na1 Qe8 Bd7 Qf1 Ba4 Qgf7 Rf8 h8Q Bf6 h7 Bg5 Qc8 Rd8 Nc4 Nf5 Qfg8 Rb6 Qa6 Qa8 Qe8 Neg7 Qf7+ Re6 Qhg8 Qb7 Qf6 Bc1 h8Q Qa8 Qh5 Bg5 Bh3 e3 Nf4+ Ke4 d5 Kf3 d6 e2 Nd5 e1R Qgh7 Be3 Qe5 Rg6 Nc7 Be6 d7 Qe4 Rd4 Rc1 Na8 Qf4 Qg1 Nd1 Bg2+ Ke2 Bb7 Qf3 Rd3 Re8 d8Q Re7 Qe4 Rd7 Qf6 Rd6 Qfe5 Rd4 Kc5 b4 Kb6 b3 Bc3 Rd8+ Ka5 b2 Nd6 b1N Nc4 Re8 Rd8 Re7 Qgh1 Rd7 Q1h3 Rd4 Rd5 Rd2 Qf1+
Q3r1B1/1rr2R1n/3K1b2/n1B1RqR1/3N3P/1NB2nbB/R5b1/RbbNk3 b - - 0 1 illegal: No possible last move
QBB4b/1bP1R2r/1Q1B1BNk/1r1BR1n1/rq4b1/nb2K2b/2Q5/4n1BN b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 b4 Kg7 c4 a5 f4 e5 g4 d5 c5 h5 c6 h4 g6 e4 c7 h3 g5 d3+ Ke3 h2 b6 d2 b7 a4 b5 a3 b6 a2 Ba6 Rh6 f6+ Kh8 f7 Kg7 f5 Bb4 f8B+ Kh8 g7+ Kh7 f6 Nd7 b8B Qe7 b7 Bc3 f7 Nb6 Bb2 Qb4 Bc5 Bh3 f8B Nf6 Qc2 d1B Bfd6 Bdg4 g8B+ Kg7 g6 Nh7 Bf7 Ng5 Nf3 Rh7 Re1 h1B Nh4 Kh6 Nd2 Bh8 g7 Ra7 Rac1 a1R g8Q Ra5 Nf1 Rb5 Ng3 B1g2 Bf6 d4+ Kf4 e3 Ng6 e2 Nh1 d3+ Ke3 d2 Bd5 d1B Ra1 Be4 Ra5 Na4 Qe8 Nc3 Qc6 Nb1 Qb6 Nd2 Bh2 Nb1 Bcd6 Na3 Bg1 Ra8 Ba7 Qb2 b8Q Qb4 Bc8 Beg2 Q8b7 Be4 Bb8 Ra6 Qc4 Bb3 Qa8 Beg2 Qc2 Ra7 Rf1 e1N Rf5 Be4 Re5 Bef3 Re7 Bfg2 Bf7 Bb7 Bg8 Rf5 Rae5 Ra4 R5e6 Rd5 Re5 Rb5 Bd5
Qr4BN/1Q1b1qq1/nQ1b1kB1/3q1nq1/b1Q5/2Br1N1K/1q1RRP1Q/5Q2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 d4 c5 b4 a5 b6 e5 f6 h5 d6 c4 b5 h3 g5 a4 d5 c3 g6+ Ke8 b7 h2 f7+ Kd7 b6 e4 g7 a3 Bd2 h4 Ne2 a2 Nf4 c2 Bd3 c1Q Kf1 e3 Kg2 e2 Ng6 e1Q Kh3 Qe5 Re1 Qcb2 Re2 Qee8 Qf1 Qb5 Bc2 Qc7 Be1 Nh6 Nd2 Qb1 Be4 Qb5 Rd1 Qc2 Bf5+ Kd8 d7 h1B Kh2 Be7 f8Q a1Q Qg8 h3 Bd3 Rh7 Nh8 Na6 b8Q Qf6 b7 Qcb2 Qe6 Qef7 g8B Q6g7 Bg6 Be4 Qbd6 Bc2 b8Q Ba4 Kg3 h2 Qg4 Nb4 Qc4 h1Q Qe5 Qe4 Qh5 Bf8 Qh2 Ke7 Qbc7 Kf6 d8Q+ Be7 d6 Na6 d7 Qed4 Qb7 Qg5+ Kf3 Qdc5 Qf8 Qa5 d8Q Nf5 Qdb6+ Bd6 Qe8 Bcd7 Qf8 Qe3+ Kg2 Rh3 Qfc8 Qf4 Qe8 Ra3 Nf3 Qg5+ Kh3 Rd3 Bc3+ Qe5 Qeb8 Qd4 Q8a7 Rb8 Qaa8 Qe5 Rdd2 Qd4 Re5 Qdd5 Ree2+
QqNQ2R1/r2B3q/5KQ1/1qn3n1/qq1k1B1b/1Q3Rr1/2n1PQBQ/4Nb2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 g4 h5 d4+ Kc4 b4 f5 g6 c5 g5 f3 g7 f4 g6 a4 b6 a3 b7 f2 b5 f3 b6 a2 d6 h4 d5 h3 d7 h2 d6 Be7 Nc3 Na6 b8Q Ra7 b7 Rh3 Qa8 Bh4 b8Q Nh6 Bg2 f1N Nb5 f2 Bf4 Ne3 Nf3 f1Q Rg1 h1Q Ne1 Rg3 g8B+ Nf7+ Ke6 Nc2 g7 Qa5 Rc1 Bb7 d8Q a1Q d7 Q1a4 Qb6 Q5b4 d8Q Ng5+ Kf6+ Bd5 Ra1 Be6 Bh7 Bh3 Nd6+ Kc3 g8Q c4 Qge8 Nc5 Bf5 Qbb5 Qb1 Kd4 Qg6 c3 Bd7 Qf3 Ra2 Qe4 Ra3 Qb7 Qb8c7 Qb8 Nc8 Qh2 Qb3 Qab4 Bh1 Bf1 Bf3 Qh3 Bg2 Qg4 Qbb7 Qh5 Qf3 Qh7 Qf2+ Ne3 Ra6 c2 Re6 c1Q Re8 Qca3 Rg8 Qa1 Rh1 Q4a4 Rh3 Q1a3 Qge8 Rg4 Bh2 Qac4 Qg6 Qaa4 Rf3 Qc3 Qcg3 Qd2 Qh3 Qdb4 Bf4 Rg3 Qh2 Rh3 Qfg3 Nc2 Re3 Nd3 Qgf3 Rg3 Qf2 Nc5 Rf3+
4N1Nb/3q1NR1/bqn3Kn/1R3BBQ/k3R1BR/1b2b2q/1rrP1b2/2RN4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 Ke4 c5 f4 a5 g4 h5 b4 a4 g5 h3 d6 c4 b6 Kc6 f6 Kb5 f7 h2 f5 a3 f6 a2 b7 h4 g6 h3 g7 Ra3 d7 Be7 Kf5 e4 f8N e3 f7 e2 Nc3+ Kb6 b5 Ka5 b6 e1B Be2 Kb4 Ne4 c3 Nf6 c2 Ne8 Re3 Nh7 Ka4 f8R Bb4 Ba3 Be7 Nhf6 Rh6 Rc1 a1B Bg4 Rc3 Ne2 Rh4 Rf7 Nh6+ Kg6 Bc5 g8B Nc6 b8R Bef2 b7 Bce3 Rg7 Qb6 d8N Rb3 Bf5 Rc4 Be7 Rb2 Bge6 Rc3 Re1 h1B Nf7 h2 Ng8 Bd5 Bg5 h1Q Bg4 Qh2 Bef5 Bb3 Rh1 Qg3 Rh4 Qh3 Ra8+ Qa5 b8R Ba6 Rb5 Qb6 Rd8 Rc5 Rd4+ Rc4 Rb1 c1Q Re4 Qc3 Qh1 Qcd4 Rc1 Qd7 Nc3+ Ka3 Nd1 Ka4 Re7 Rcc2 Re4+ Nb4+ Be6 Rb1 Rh7 Bh8 Rh5 Qf1 Rg7 Rbb2 Rh2 Bd4 Rh3 Nc6 Bef5 Qg2 Rc3 Qf1 Qh5 Qg2 Rh3 Qf3 Re7 Bde3 Rh4 Qh3 Re4+
q2N1Q1r/3k2bn/Q3qnb1/1BQ1Qr2/5QBn/3Q2R1/2PK1nn1/N1B1Rq2 b - - 0 1 illegal: No possible last move
3R2rR/3rbqr1/k1b1Q2Q/2B2BrR/4BK1R/3qrN1q/1P2NnRR/4n3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 g4 a5 f4 h5 d4 c5 b6 a4 b7 Kc7 g5 Kb6 g6 a3 g7 a2 f6 c4 f5 c3 f7 h3 f6 c2 d6 h2 d5 h4 d7 e4 d6 h3 Bc4 Nc6 b8Q+ Bb7 Ba6 Ne5 Nc3 Rh7 Qd5 Be7 f8R Nf3 f7 Nf6 g8B Ng4+ Kf4 e3 Qe6 e2 Bd3 e1R Be4 Ka6 Be3 c1Q Nce2 Qcc7 Bc5 Rg7 Bgh7 Bc6 Bhf5 Nf2 Rh8 Rg5 Rc1 a1R Rc4 Rad1 f8R Rd3 Rfg8 Re3 Bb6 Rd1 Bc5 Ne1 Rh5 Rg7 Nf3 Rd4 Rg1 h1Q Rg2 h2 Rgh8 Qf1 Qh6 h1R Qb3 Rg1 Rgh2 Qdc8 d8R R1g5 Rdg8 Q8d8 Rb4 Qh3 Qbe6 Qb7 Rc4 Qb3 d7 Qc7+ Ne5 Qd3 d8R Qd7 Nf3 Qd5 Qe5 Qf7 Qee6 Rb8 Rd7 Rf8 Rd8 Rd7 Rb4 Rh7 Rg7 Rg8 Rg6 Rhg7 Rd4 Rg1 Rgg2 Rd5 Rg4 Qb5 Rd2 Qd3 Nc3 Nd1 Rc2 Rd7 Rgh4 R1g5 Rcg2 Nf2 Ne2
2qn1R1N/rNrb4/8/QB4b1/1bqBb3/1n1RB1KB/QPb1kB2/1q2BN2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 Kf2 Kf6 g4 a5 d4 h5 b6 c5 b7 e5 d6 h3 d5 h4 d7 c4 d6 c3 Nd2 a4 Ra3 h2 Bb5 h3 Qb3 e4 Ngf3 c2 Nh4 e3+ Kg3 e2 Ng6 Bg7 Qa2 Bh6 Nf1 Bg5 Be3 c1Q Rd3 Nc6 b8B a3 Bba7 Rh7 Nh8 e1B+ Bf2 Qc2 Be3 Na5 Rg1 Qe8 d8Q+ Ne7 d7 Nb3 Qa5 h1B d8N h2 Nb7 Be4 Rg2 h1B Rg1 Kg7 f6+ Kh6 f5 Bb4 f7 Qc4 f6 Nc6 f8B+ Rg7 f7 Nd8 Be7 Bd7 f8B Ra7 Bf6 Bh7 Be1 B1e4 Bfc5 Qee6 Bb6 Qec6 Rg2 Qc8 Bfd4 Bhg6 Rf2 Bgf5 Qa1 a2 Rf4 Bh7 Rf8 Rf7 Qb1 a1Q Qba2 Qb1 B3f2 Rf5 Bde3 Rc5 Bd4 Rc7 Bbc5 Bc1 g5+ Kh5 g6 Bg5 g7 Bhf5 g8B Bg6 Kh2 Kg4 Be6+ Bgf5 Bde3 Kf3 Bcd4 Ke2 Kg3 Bh7 Bh3 Bhg6 Rd1 Bc2 Rd3 Bgf5 Bg1 Be4 Bgf2
1q6/2nn1R1R/b1qNN3/R1b1Q1B1/7P/2RB1b1r/1n1RR2n/KNk1r1nQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Ke7 Kd2 Kf6 Kc2 Kf5 b4 Ke4 Kb2 a5 h3 g5 e3 c5 b6 f5 h6 c4 b5 f3 b7 f4 h7 a4 b6 g4 d6 f2 d7 f3 d5 g3 d6 g2 Ne2 g1N Rh2 Na6 b8R Nf6 b7 Nc7 Nd4 c3+ Ka2 c2 h4 a3 Ne6 Ra6 Bc4 f1B Re2 f2 Bd3+ Kf3 e4 Bg2 e5 f1N Qe1 Nh2 Bg5 c1Q Ra8 Qc6 b8Q Rb6 Qc1 Rb3 Ra7 Ba6 Qe1 Qe8 d8R Nd7 Rc8 Rg8 h8R Rg6 Nf4 Re6 Rh7 Re7 e6 Qd8 Qd1 Re8 Rf2+ Ke3 e7 Bf3 Rg2 Nh3 Qh1 Ng1 Nd2 Rc3 Rf1 Rb3 Ka1 a2 Nb1 Rc3 Rc2 Rb3 Rc3 Ra3 Qb5 Rb3 Rca8 Qb8 Rf2 Ra3 Kb2 a1N Re2+ Kd4 Rb7 Nb3 Rba7 Nd2 Rf7 Rb3+ Ka1 Nc4 Qa5 Nde5 d7 Nb2 d8R+ Nd7 Qf5 Bb5 Ra5 Bc4 R8a7 Ba6 Rd2 Ke3 Rh7 Rb4 Qe5+ Re4 Rc8 Rd8 e8N Bc5 Nd6 Rg8 Bf6 Rg3 Bg5 Rh3 Re8 Nb5 Qg7 Nf8 Rf7 Nc7 Rd1 Nd7 Re5 Kf2 Rd2+ Ke1 Ne6 Re3 Rg2 Kd1 Rgc2 Re1 Ree2 Qe4 Qe5 Qeb7 Rb3 Qc6 Rcd2+ Kc1 Rc3#
2RnnB2/2nB2rN/1N6/1N1nRB2/qB2bbPr/q2n2Q1/Bk2K2B/1Q4r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 b4 a5 g4 c5 b6 h5 b7 f5 g6 h4 b5 c4 b6 f3 g7 c3 Bb5 f2+ Ke2 f1N Qb3 f4 Bd3 h3 Na3 c2 Bd2 h2 Re1 a4 Qb1 Nc6 b8N Rh4 b7 Qa5 Nf3 Ra7 Ng5 Nf6 g8B Ne3 Nh7 Bh6 Nd7 Ne8 Nb6 Bf5 b8Q+ Rc7 Rc1 Nd8 Rhe1 h1R Bb4+ Qc5 Be6 Rg1 Bc4 Bg5 Ba2 Bg6 Bf5 f3+ Kd2 f2 Ke2 f1N e5+ Ke7 e6 Bf4 Nb5 a3 Ng5 Kf6 d6 Rch7 d7 Rg7 e7 Nd5 Qc7 Nfe3 Nh7+ Kf7 Qb8 Qc3 Qe5 Qb3 Qb8 Ndc7 d5 Qa4 d6+ Ned5 Be4 Nf6 e8B+ Ke6 Bf5+ Ke5 Na7 Nf7 d8B Kd4 Be7 Nd8 Bed7 Nfe8 Bf8 Nf7 Bfe6 Be4 Bf5 Nd8 Nb5+ Ke5 Bb3 a2 Bc4 a1Q Ba2 Qa3 Bc6 Nde6 d7 Qa4 d8B Qb2 Bde7 Qba3 Bd7 Nd8 Nc3 Kd4 Bed6 Bg5 Bh2 Bf4 Kf2 Bh1 Re5 Be4 Rf1 c1N Rd1+ Nd3+ Ke2 Bg2 Rc1 Bh1 Ne4 Bg2 Nd6 Be4 Rc3 Na8 Rc8 Nac7 Qe1 Qc1 Qg3 Qca3 Bc5+ Kc3 Nb5+ Kc2 Bb4 Kb2 Qb7 Ndf6 Qc6 Nfd5 Qc2+ Ka1 Qd1+ Kb2 Qb1+
1br1BK1N/2NbB3/3NrQ1R/N2b1q2/Rrn1N1P1/r2kn1B1/8/1R1R1qr1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 g4 a5 f4 c6 b4+ Kb6 d4 e6 d6 h3 d5 h4 d7 c5 d6 c4 f6 h2 f7 h3 f5 a4 f6 c3 Bf4 c2 Qf3 c1R Bg3 a3 Nc3 a2 Ne4 Bg7 f8N Rh4 Ng6 Rb1 Ne2 Qf8 d8R Ra3 d7 Nh6 Nd4 Nf5 Nb3 Ne3 Na5 Rh8 Qf4 Bh6 f7 Nc6+ Kf6 e5 Ke6 Qc5 Qf6 Bf4 f8B Rb2 Rb1 a1R Kf7 Qc2 Bd3 Qc5 Rhd1 h1Q Be7 h2 Rf8 Qf1 d8N h1B Ndb7 Qc2 Nbd6 Bd7 Ra8 Rc8 Nh8 Qc5 Ra7 Qd5+ Kg7 Qe6 Bc4 Qf5 Bf7 Bg2 Be8 Bf3 Nc3 e4 Kf8 Ne5 Ra8 N5c4 Ra7 Nc2 Ra8 e3 Nce4 e2 Ra7 e1R Ra6+ Kc7 b6+ Kb8 b7 Kc7 b8R N2e3 b5 Rb4 Rbb6 Bg2 Ng5 Bd5 Nge4 Re2 Nab7 Be5 Ra4 Re1 Rba6 Re2 b6+ Kc6 Ndf7+ Kb5 Na5 Bb8 b7 Rg2 Re6 Rg1 Ra6 R1a2 Rc6 Re2 Rd6 Bc7 b8N Re1 Na6 Bb8 Nd2 Re2 Nc7+ Kc5 Qg5 Kd4 Rh6 Kd3 Qf6 Nc2 Nd6 Re6 Re1 N2e3 N2e4 Qe2 Rec1 Qef1 Rd1+
5RB1/r2qNRRR/3R3N/brk1q2n/1rP2R2/r1qr2Bb/Bn6/KQ2Q3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 h5 f4 e5 b4 Ke7 g4 Kd6 g6 a5 g5 e4 f6 h4 g7 a4 b6 h3 g6 h2 f7 a3 b5 d3 Kc3 a2 Kb2 e3 f5 e2 f6 e1Q b7 d2 b6 Ra4 Nh3 Qe6 Ng5 Rhh4 Qe1 d1Q Bc4 Ra3 Bf4+ Qe5+ Nc3 Qf3 Bg3 Nc6 b8R Nb4 b7 Kc5 Rd1 a1R Ba2 d5 Rf1 d4 Nd5 h1R c4 Rh5 Ne7 Qd7 Ra8 Qfe3 b8Q Rg1 Rf4 d3+ Rd4 d2 Ra7 Qf3 Qb7 Rg2 Qbe4 Re2 Qb1 Ree3 Rb7 Red3 Ra7 Qb5 Rb7 Bh3 Ra7 Qd7 Rb7 Nh6 g8R Nf5 g7 Ra7 Rh8 Rda3 g8B Ng7 Rh7 Nd3+ Kc2 R7a4 Rf4 Nb2 Ra7 Rb4 Rb7 Ne8 Ra7 Bh6 f8R Ng7 Nf7 Rf5 Rb7 Nh5 Ra7 Bg5 Nh6 Qfe3 f7 Q3d4 Rc1 d1R Rg7 Rdd3 Rd1 Rdb3 Rd3 Qde3 Rd6 Rd3 Rd8 Q3d4 f8R Bf6 Rff7 Bg5 Rh4 Bd2 Rf4 Rg5 Rb7 Ra7 Rdf8 Rf5 Bb3 R1a3 Ba2 Qde3 Qbc1 Qc3+ Kb1 Qee5 Ka1 Rf6 Ra6 Rfb6 Qb1 R6b5 Rd6 Qcd4 R7f5 Rbb3 Nd5 Qd8 Rge7 Ba5 Rh7 R3b4 Rbg7 Qc3 R5f7 Qd7 Ne7
N1b3N1/1qq3Bk/3r2bn/1N3q1P/RBn3b1/4R3/QR3Brb/1N1B1NbK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 f5 Kg2 Kf7 d4 g5 e4 Kg7 h4 c5 b4 a5 b6 c4 d6 g4 b7 g3 h6+ Kg6 d5 a4 e5 a3 b5 c3 h7 a2 b6 c2 e6 Ne7 d7 Ra5 d6 Nd5 h5+ Kg7 e7 Nf6 Nf3 Rd5 Be2 Qc7 d8B Ng8 d7 Nc6 b8R Na5 b7 Nc4 Nh2 Rd6 Qd5 Nh6 Re1 f3+ Kh1 f4 Be3 c1Q Bf2 Qc2 Bd1 Rg8 h8B+ Kh7 e8N Qf5 Re3 Rg5 Nf1 g2+ Kg1 Bg7 Be7 Be5 d8N Rg4 Kh2 g1B+ Kh1 Rg8 Nf7 Rg2 Bg3 f2 Bg7 f3 Qe6 Rd4 Bb4 Rd6 Bh4 Beh2 Qd5 Qe7 Nc7 Qd8 Nb5 Qc7 Nfd2 f1B Bf2 Be2 Nf1 Ng4 Nh6 Bd3 Ng8 Nh6 Ra8 Be4 b8N Qb7 Bg3 f2 Ra4 Bf3 Nd7 Bg4 Nb6 Qc7 Nfd2 f1B Bf2 Bd3 Na8 Be4 Nf1 Bc2 N1a3 Be4 Rc1 a1Q Rc2 Qb2 Nb1 Qb3 Rb2 Bc2 Re1 Qbf3 Qe6 Qfb7 Qe2 Qf4 Qe6 Bg6 Re3 Qf5 Qd5 Nb6 Qb3 Nc4 Qa2
1NQ3bk/R4qr1/bR1K2RB/5qPB/R1Rb1n2/1R2Nb1r/nQqN4/6b1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kc4 a5 Kc5 e5+ d6 h5 f4 e4 d4 e3 g4 a4 b4 a3 b6 h3 b7 h2 b5 c6 b6 h4 f6+ Kh7 f5 e2 f7 e1B d5 a2 f6 h3 Be2 Bf2+ Qd4 Ra3 Nf3 Ne7 d7 Qc7 d8R Ra7 d6 Bg1 d7 Bg7 f8Q Ng6 f7 Nf4 Nh4 Be5 Ng2 Na6+ Kc4 c5 b8R Bb7 Rdc8 Nb4 Qb2 Bed4 d8R Bf3 Kb5 c4 b7 c3 Nd2 c2 Rd7 Qe5+ Rc5 Qf5 Ne3 Bd5 Rb1 a1Q Qc8 Qa2 f8R+ Bf7 Rd6 Bg8 Rg6 Qaf7 Rd8 Na2 Kc6 Bc3 Ra8 Bd4 b8N Re7 Ra4 Rd7 Nb3 Re7 Bd2 c1Q Rd7 Qcc2 Rda7 Rc7+ Kd6 Re7 Rf6 Kg7 Rc3 Rh7 Bc1 Kh8 Rcc4 Rg7 Nd2 Re5 Nef1 Re3 Rg6 Re5 Qa1 Re3 Rcc7 Ng2 Rb6 Bf2 Nb3 Rg3 Bh6 Nf4 Rg1 h1B g5 h2 Bh5 Bb7 Nbd2 h1B Rcc4 Rh3 Ne3 Bhf3 Rgb1 Ba6 R1b3 Bg1 Qb2
b1b5/N1K1NR2/P2n1R2/rN3B2/3b2Rb/1QBB1k2/B2bq1r1/Bn1q1qN1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 a4 b5 g4 e5+ d6 h5 d4 c6 f4 h4 d5 h3 a5 b3 f6 b4 a6 h2 f7 b2 g6 b3 g7 Nh6 g8B Be7 f8B Bg5 f5 Qc7 f6 Rh7 f7 Bh4 d7 Nf5 d8N Rh5 d6 Qe7 Kb6 c5 g5 c4 d7 c3 g6 c2 g7 Nc6 Kc7 Nd6 Nh3 Na5 Na3 b1Q Rg1 h1B Bb2 c1B Nb5 Be3 Nc6 Nac4 Nca7 Na3 Bc3 b2 Qb3 Qd1 Bd3+ Kf3 Rg4 b1Q Bgh7 e4 g8B Bd4 Bg7 e3 Bhf5 e2 f8R e1B Rf6 Qee2 d8N Bd2 Ndc6 Qbc1 Ra2 Nb1 Ne7 Qdf1 Rf7 Qcd1 Ra4 Rb8 Rg6 Rg5 Rgf6 Rg2 Ba1 B4e3 Rg4 Bd4 Na3 Rb4 N3b5 Ra4 Rfg6 B4e3 Bgc3 Ra5 Rgf6 Na3 Bb1 Bd4 Ba2 Nb1 Bgh7 B2e3 Bd3+ Bf4 Bhf5 Bc1 Qb2 Bd2 Qb3 Rf2 Rh6 Ke3 Ng1 Ba8 Nh3 Kf3 Rhf6 Rg2 Ng1+
K3NR1n/6PB/nr1BkNQ1/2BR1n2/1Rq2N1N/r1n1nB2/1N2b2q/q1b5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 c5 d4 a5 b4 c4 g4 f3 g6 f6 g7 c3 g5 f2 b6 h4 b7 c2 g6 a4 b5 a3 b6 h3 d6 a2 Kd5 f5 e4 h2 e5 f4 e6+ Ke8 d7+ Ke7 Qh5 f3 Be2 f1N Ba3+ Kf6 e7 c1N Nd2 f2 Bf3 Ra7 Nc4 Ng3 Rb1 f1Q Rb4 a1N e8N+ Ke7 Nb2 Nh6 g8B Qf2 g7 Qc7 d8N Bf5 Ne6 Qe2 Qg6 Qd1 Bh7 Bd3 Nf4 Na6 b8B Na2 b7 Ra8 Ba7 Nc2 b8N Be2 Nd7 Ngf5 Ndf6 Nf7 Bb6 Qa1 Bc5+ Kd8 Bd6 Qc3 Bc5 Qc4+ Kc6 Nce3 Kb7 Nc3 d5 Rg8 d6 Nh8 d7 Rb8+ Ka7 Rb6 Ka8 Be7 Ne4 Bg5 N4f6 Rf8 Bg4 Rf7 Nf3 Re7 Rb1 h1Q Rf1 Qh2 Nh4 Re5 Bd6 Ra5 Bf3 Ra4 Rd1 Ra5 Rd5 Bh6 Be5 Ke7 d8R Ra4 Nc7 Bg5 Rf8 Bh6 Nce8 Ra5 Nfd3 Ke6 Bd6 Ra4 Rb3 Bf4 Bac5 Ra3 Rb5 Ned1 Rb3 Bc1 Rb4 Nde3 Nf4+
NqB1n1r1/kR2PRNb/n2B1Rn1/8/2B1N2B/r2B4/q1r2R2/bQ1n1n1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 f5 Kg2 h5 d4 a5 b4 c5 e4 Kc7 d6+ Kb6 e5 h4 d7 c4 e6 c3 g6 a4 g7 a3 d5 c2 d6 a2 e7 Ra7 g5 Kb7 b6 Nh6 g8B Ra6 g6 Bg7 b5 Ra4 Nh3 Rb4 Rh2 f3+ Kh1 f2 Bd3 f1N Nd2 f4 Ng5 f3 Rf2 h3 Nde4 h2 Be6 Ka8 b7+ Ka7 Bd2 c1N Be1 Bf6 g7 Rb3 g8B Ne2 Qb1 Na6 b8R Nf5 Rb6 Qf8 d8B Nf4 d7 Ng6 Bc7 Ra3 d8N N1e3 Bd6 Nd1 Rc6 Bb7 Bc8 Ng7 Bgc4 Rg8 Nde6 Ne8 Nc7 Bg7 Na8 Qf4 Rc2 f2 Ne6 f1N Bh4 Bd4 Ng7 Qg3 Bb4 Qb8 Rf6 Bc3 Bd6 Bb2 Kg2 h1R Rcf2 Rh2+ Kg1 Bd5 Rf7 Be6 R2f6 Rc2 Kh1 Nf8 Rf2 Bf5 Rf6 Bh7 Rf7 Ng6 R2f6 Qc7 b6+ Kb8 b7 Ka7 b8R Bc3 Rb5 Qb8 Rbf5 Bd4 Rf2 Be5 Qb2 Bc3 Rb1 a1Q Qc1 Qa2 Rb4 Bb2 Qb1 Ba1 Rb7+
3qnR2/P1B2N1B/1r5N/1N3Qn1/nR1n1K1N/4r3/2q1Qb1k/1bBnbN1N b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 d4 Kg5 a4 Kh4 f4 g5 h6 c5 a5 e5 d6 b5 d5 c4 a6 e4 d7 g4 h7 c3 d6 b3 a7 b2 f6 b4 f7 g3 f5 g2 f6 b3 Kf4 e3 Ne2 Kh3 Ng3 c2 Bd3 g1B Qe2 Nh6 Nd2 b1Q Ndf1 b2 Ra4 Nc6 Rb4 Ng8 Be4 Be7 f8N Rb8 f7 Rb6 Ng6 Nf6 f8Q Ne8 Nh4 Bf2 Qf7 Rg8 h8N Nd4 Bh7 Rg5 Qfh5 Re5 Nf7 Ba6 Qg5 Bd3 Nh6 Qa2 Rg1 b1N Nh1 Nc3 Rg4 Nd1 Qf5 Qc7 d8N Qc8 Bb2 c1N d7 Bb1 Ne6 Qd8 Nc7 Ncb3 Nb5 Nc5 Ba3 Qc2 Bc1 Qc8 d8B Na4 Bc7 Qd8 Qc8 Ree6 Rg8 Be1 Rf8 Bc5 Qd2 e2 Qd7 Bf2 Qf7 e1N Qe2 Re3 Qfh5 Nef3 Qf7 Ne5 Qe6+ Ng4 Qf5 Be1 Ng8 Nc6 Bg6 Nf2 Nf3 Kg2 h4 Rb3 h5 Nge5 h6 Nf7 h7 Rc3 h8N Ng5 Qee4 Nd1 Nf7 Bcf2 Ngh6 Nd4 Qe2 Ra3 Bh7 Re3 Nh4+ Kg1 Nd2 Kh2 Nf1+
NkQ1N3/1B4rn/r1B2qB1/4q1bb/bRBR2N1/1q3n1R/3BnPK1/2q4R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 a5 c4 h5 b4 e5 g6 d5 f6 Kd7 g5 Kc7 b6+ Kb7 f7 d3 c5 a4 b5 h4 g7 d4 g6 h3 Nd2 e4 Qg4 e3 Ngf3 h2 Bg2 a3 Kf1 a2 Ne5+ Qd5 Ne4 d2 Nf6 d1N Bd2 d3 Ne8 Na6 c6+ Kb8 b7 Nc3 Rd1 Be7 f8N a1Q Ne6 Rh7 N6c7 Nf6 g8B Bd7 g7 Nc5 Bf7 Ra6 g8B Qb3 Na8 N5e4 Bg6 Ne2 Bc4 Rg7 Qh3 Qac3 Ng4 Ng5 B2e4 Bd8 Kg2 Nfh7 Bed5 Nf3 c7+ Ka7 b8R Bg5 c8B Qf6 Rb6 Bc6 Bb7 Kb8 Bde4 Bd7 Rd6 Bc6 b6 Ba4 Bc1 d2 Rd3 Neg1 Bed5 e2 Bdc6 e1Q Rd4 Qee7 Re1 d1B Re3 Ne2 Bd2 Nf8 Qh8 Nh7 Qg8 Ne5 Rh3 Nf3 Bce4 Qc5 Bbc6 Qce5 b7 Rd7 Qe6 Rg7 Qc8+ Ka7 b8R Nc3 B6b5 Ng1 Nh6 Bh5 Ng4 Nf3 Rg1 Ne2 Bed5 Rd6 Bd7 Ra6 Rb4 h1Q+ Kf1 Qe4 Bb7 Qee3 Bdc6 Qh2 Bc1 Qhe5 Kg2 Qec3 Bd2 Qc1 Qd7 Kb8 Rgh1 Nc3 Qf5 Ne2 Qc8+
1B1N3K/1R3r2/qbBn1nrB/N4Q1N/5bb1/1NqQq2k/r3P2R/b2NN3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 h4 g5 b4 c5 d4 f5 h6 a5 b6 f3 h7 f4 d6 a4 d5 a3 b5 f2 b7 f3 h5 a2 b6 c4 d7 c3 d6 c2 h6 Ra4 Rh2 Nf6 Qd3 Be7 Nc3 Rg8 h8N Nh7 Ng6 Nf6 h7 Ne4 h8Q Ra6 Nd1 Qe8 Bg2 f1Q d8N f2 d7 Nd6 Nf4 Rg6 Rb1 a1B+ Rb2 Ra2 Nf3 Bf8+ Nde6 Bh6 d8N Bd7 Bd2 c1Q Qf8 Qc7 Ne1 Qc3+ Qd4 Kg3 Qf5 g4 Bc6 Qg2 Rb3 f1R Bc1 Qh3 Nh5+ Kh4 Bf4 g3 Rb5 Qf8 Nc5 g2 Nb3 g1B Rb4 Qg8 Rb5 Qgc4 Be3+ Rg4 Kf6 Bf4 Rb4 Qa6 Bc1 Bg5+ Kg7 Bf4+ Kh8 Rg6 Rb5 Bc8 Be3 Nd7 b8B Nf6 b7 Rf3 Qdd3 Bd7 Bc1 Bb6 Be3 Be5 Bh6 Bf4 Ba7 Bc8 b8N Rf1 Be4 Be6 Nbc6 Rf2 Nca5 Bc8 Qe5 Bg4 Bc6 Rf3 Bb8 Rf1 Rg2 Qe3 Qef5 Kh3 Rf2 Ba7 Rb7 Bb6 Rg2 Nfe4+ Qd4 Bh2 Qd7 Rf7 Qf5 Nf6 Qdd3 Bf4 Rh2+
R1BBn2K/2bq4/2B1rB2/5b1b/2B1q1R1/Nr2N1r1/nNPR1QNk/1q4r1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Ke4 d5+ Ke5 h5 f4 d3 g4 d2 b4 a4 b6 a3 g6+ Kg7 b5 Kh6 b7 a2 b6 h4 g7 h3 f6 e6 f5 Kg5 f7 Kh4 f6 Kg3 g5 h2 g6 d4 Ne2+ Kf2 Qe1+ Kf3 Na3 d1Q Rg1 h1Q Bg5 d3 Rg4 d2 Nc1 Ne7 g8B Bh6 f8B Ra7 g7 Qh3 f7 Nd5 Bfe7 Qh1 f8N Nf6 Bh3 Ne8 Bgf6 Qd7 Ng6 Na6 b8N Nb4 Na6 Rb7 Nd3 Qb1 Bd8 d1B Nc7 Be3 Bh7 Rg8 Nd5 Bd2 Nb2 Bf4+ Kd4 Rb8 b7 Bc7 Nf4 Be2 Ng2 e5+ Kc5 e4 Kd4 e3 Qg1 Qf1 Rd1 a1R Rd2 Qb1 Qh2 Kf2 Be4 Na2 Qg3+ Kg1 Qf2+ Kh2 Bf3 Bb6+ Ke5 Bd1 Be4 e2 Nde3 e1R Bc6 Bf3 Rgd4 Bh5 Rg4 Ra8 b8R Bc7+ Ke4 Ra5 Ra8 Re5+ Kf4 Re6+ Kg5 Rg1 Kh6 Qc1 Kh7 Rb1 Nbd1 Rb3 Nb2 Qb1 Rg6 Rf8 Rg4 Rf7 Kh8 Rfe7 g8B Rg7 Rc4 Rg3 Bf5 Ba6 Rg4 Bd3 Bg6 Bf5 B6f7 Re5 Bc4 Re6 Ba6 Re4 Bgc4 Re7 Bc8 Re6 Ne1+ Qg2 Qf1 Qe2 N1g2 Qed3 Qf4 Qe4 Qf2
4rQ1Q/1n1KN2n/6k1/2Q2R2/1Q2r1b1/Q1BBQ1nN/rP1B1R1b/1qn2qb1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 h5 Ke4 c5 Ke5 a5 d4 e6 g4 a4 f4 c4 g5 c3 b6 c2 d6 h3 d7 a3 d5 h4 b7 a2 f6 h2 f5 h3 d6 Ra5+ Qd5 Qe7 d8Q Qe8 d7 Bc5 Qb6 Ra3 d8B Qb5 Bd2 c1N Nc3 Ra4 Bd3 Na6 b8Q Rc4 Rb1 a1R Qf3 Rd4 Qe3 Ra2 Nd5 Qc4 Q8d6 Qc2 Ra1 Qb1 Qb4 Bb6 Bc7 Nc5 Ne7 Nb7 Qdc5 Ba7 Ba5 Bb6 Ne2 Rdh4 Rd1 h1N Rf1 h2 Nf4 Ng3 Nh3 h1Q Rf2 Qf1 Qa3 Rc4 Bac3 Ra4 Qab4 Bc7+ Kd4 e5+ Kd5 e4 Kc6 Ra8 Qa3 Rh4 Qab4 Be6 Qa3 Re8 g6+ Kf8 f7 Nf6 Qcb4 Kg7 Qbc5 Be5 Qcb4 Nh7 f6+ Kh8 Qbc5 Bg4 Rf5 Bc7 Kd7 Be5 Ng8 Bf4 f8Q Be5 f7 Bd4 Qfd6 Kg7 Ne7 Be5 Qe1 e3 Qdb6 e2 Qbb4 Bd4 Qf2 e1B Qe3 Qc2 Rb1 Bf2 Ra1 Bg1 Rb1 Bh2 Ra1 Ng5 Rb1 Kh6 f8Q+ Kh5 Ra1 Qb1 g7 Kh6 g8Q+ Kh5 Qf4 Bdg1 Qfe3 Bd1 Nc8 Rhe4 Qh8+ Kg6 Rf2 Nh7 Rf5 Qc2 Rb1 Bg4 Ra1 Nce2 Re1 Nc1 Re2 Qb1 Rg2 Ng5 Rf2 Nh7 Ne7+
Qn1q4/2r1b1QR/2r4n/2Br4/4N3/N1Rq1BQ1/kP2RRbb/bRKn1R2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 d4 h5 Kd2 e5 g4 a5 d6 c5 b6 e4 b7 c4 d5 a4 d7 h3 f6 h2 f5 a3 g5 h4 d6 a2 Nh3 Ra7 Qe1 Nh6 Na3 Rg8 Nf2 h3 Bg2 Be7 Rb1 a1B Bf3 e3+ Kd1 c3 Ne4 Ra6 Qg3 e2+ Kc2 e1B Be3 Ra5 Kc1 c2 Bc5 Rg7 Rf1 h1N g6+ Kg8 Rf2 h2 Re2 Nf2 f7+ Kf8 Qh3 h1Q Qg3 Na6 b8R Nd1 Rb4 Qh3 Rb3 Nb8 Rd3 Rh7 Rc3 Kg7 f8R Bb7 Rh8 Bf2 Rf8 Bg1 Rf7+ Kg8 f6 Bh2 g7 Qf1 Rf2 Qd3 Rf1 Ra4 Rf2 Rd4 Rf1 Rd5 Rf2 Qe8 d8Q Ba8 Qc7 Qd8 Qc8 Bf8 Ra7 Be7 d7 Kf7 g8R Ke6 f7 Rg7 f8R Rg6 Rf4 Ke5 Rgf8 Rc6 Qb7 Ke6 Re8 Ke5 Bd6+ Kd4 Bb4 Rc7 Rf1 Rc6 Bc5+ Ke5 Rg8 Rc7 Bh5 Bd6 Rgf8 Rc8 Ng5 Nc6 Bb6 Nb8 Rcc4 Rd4 Re8+ Qe7 Rc6 Kd5 R4f2 Qf6 Ree2 Bc5 Qa6 Qd6 d8Q Bb4 Qe7 Qd8 Qf8 Bd6 Raf7 Be7 Rh7 Rc7 Qg7 Bb7 Rc3 Ba8 Rb3 Bc6 Qa8 Bb7 Nb5 Kc4 Ba7 Bg2 Bf3 Rd5 Ne4 Qd4 Rd3 Kb4 Kd2 c1R Bb6 R1c6 Bc5+ Kc4 Kc1 Qc3+ Rc2 Kb3 Na3 Ka2 Rdd2 Qc4 Rc3 Qd3 Rde2
1qQr4/nR3R2/2bRq1N1/BBK1bB1b/6b1/N3P1kN/4rn2/NR1Nq1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 Kd6 g4 Ke5 d4+ Ke4 b6 f5 b5 a5 d6 c5 b7 h5 d7 h4 d5 h3 g6 f3 g5 c4 d6 c3 b6 c2 g7 h2 g6 a4 Nh3 a3 Bd2 c1Q Nc3+ Ke5 Ke3 a2 Qc2 f2 Rb1 a1R Nd1 Nh6 g8N Na6 b8R Qe8 d8N Qb2 b7 Qd7 g7 Nb4 Ne6 Nc6 Nc5 Qe6 d7 Na7 d8R Bd6 Ne7 Re8 g8B f4+ Kd3 f3 Ba5 Qb4 Bh7 Ng4 Bf5 Bc7 Rg1 h1B Nb3 Qf4 Rd6 Bd7 Bg2 f1B Qc1 f2 Bc6 Bhg2 Bb5 Bgc6 Rg3 Bfg2 Rf3 f1Q Qc4 Qe1 Ng6+ Kf6 Rf2 Bgf3 e3 Rd8 Rf1 Ra2 Rf2 Re2 Na1 Qg3 Rf1 Nf2+ Kd4 Bh5 Kc5 Qh2 Rc8 Qf4 b8N Rg8 Na6 Rd8 Ng1 Kg5 Nb4 Rg8 Re8 Rd8 Nbc2 Bc8 Re7 B8d7 Rd4 Be5 Rd6 Bc8 Rb7 Qh2 Nf4 Kh4 Ngh3 Rg1 Ng6+ Kg3 Na3 Qf6 Be4 Bcg4 Bf5 Qe6 Qc3 Qc8 Qc4 Qb8 Qe6 Qh1 Qc8 Qd5+ Kb6 Qf7 Kc5 Qe6 Bfd3 Nh1 Rff7 Nf2 Bf5
1qn3R1/r1N1N1r1/1NqBRb2/3N3K/2N2B2/knrP1n1R/B4Q1n/B2bq3 b - - 0 1 illegal: No possible last move
3N1K2/3B2R1/1qRQ1N1R/1n1N1r2/rNqB2k1/q1Pq1r2/3n1b1B/R4Nnb b - - 0 1 illegal: No possible last move
2N3r1/1qQ2NN1/B2bBB2/b4brB/2R2PRK/N4N2/1q2b1qn/3Rn1kr b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 b4 Kd6 g4 e5 f4 a5 Kf2 c5 Kg3 h5 g6 c4 g7 h4+ Kh3 c3 b6 c2 b5 a4 b7 e3 b6 a3 Ra2 e4 Rb2 a2 Rb4 a1R Nf3 e2 Bb2 c1Q Rc4 e1Q Na3 e3 Qc2 Nc6 b8N e2 b7 Ne5 Nc6 Nh6 b8R Nd3 g8B Bf5 Ne7 Qf2 Bf7 e1B Bh5 Qc7 Be2 Ba5 Rd1 Ne1 Nc8+ Kd7 d6 Ke6 d7 Kd5 d8N Rg8 Ne6 Rg5 Rb3 Qb7 Ng7 Bd6 Qc3 Ke4 d5+ Qd4 Bd3+ Ke3 Qc2 Qda7 Bf6 Qb2 Qc3 Kf2 Qe5 Be7 Qc7 Bd6 Bf1 Qab6 Re3 Qd2 Re8 Qbb2 Rg8 Bf8 d6 Rc1 d7 Bd6 Kh2 h3 d8N Rb8 Bd3 Qe2 Nf7 Kf1+ Kg3 h2 Rc5 h1B Ba6 Ra8 Rc4 Qg2+ Kh4 Rb1 Na7 Rf8 Nc8 Kf2 Rh8 Rg8 Rh7 Rg6 g5 Ng4 Rh6 Nh2 Rh7 Qg1 Rh8 Bg2 Rh6 Bf1 Rh7 Be2 Rh8 Rh6 g6 Qg2 Rh7 Qc3 Rh8 Rb5 Rh7 Qb2 Rh8 Rf8 Rg8 Bb1 Nf5 Kf1 g7 Ng4 Kg5 Be4 Bg6 Rh1 Bh5 Nh2+ Kh4 Rd5 Rh8 Bc2 Rh6 Rg8 Rg6 Bcd3 Rg4 Bb1 N5d4 Rg5 Ne6 Re8 g8B Kf2 Nfd8 Bf5 Ng7 Rf8 Be6 Rg8 Nf7 Kf1 N3e5 Kg1 Nf3+
1Qrn4/B1R1Kn2/2k1N3/Q2bbB1q/2PB1B1B/r3Q1q1/r5B1/NRq2rb1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 e5 Kd3 h5 Kc4 a5 Kd5 h4 f4 e4 b4 h3 g4 h2 c4 e3 g6 d6 f6 Kd7 g5 e2 f5 e1B g7 d3 f7 d2 b6 a4 g6 a3 b5 a2 f6 Ra4 b7 Qb6 Bg2 Qa7 b6 Rh7 Nh3 Nc6 b8Q Ra3 b7 Rh5+ Ng5 Re3 Qb3 d1R+ Nd2 Rh8 Ne6 Qa3 Rb1 Nh6 g8Q a1R g7 Bg3 Rg1 Rf3 Qe3 Rdf1 Nb3 Ra2 Na1 h1Q Qa8 Qh2 b8B Bb7 Qa5 Be5 Ba7 Qh5 Bb2 Be7 f8B Nf7 Bbd4 Bd8 Be7 Bb6 Qa8 Rc8 g8B Qc1 Bh7 Qh2 Ng7 Qg3 Bf5+ Kc7 Ke6 d5 Bb4 Ncd8+ Ke7 Kc6 Bd6 Bc5 Qb8 Ba8 Ne6 Bb7 Bb2 d4 Rh1 d3 Rh7 d2 Bd4 d1Q Rg7 Nh6 f7 Bb6 f8B Nhf7 Bc7 Qe2 Bgh3 Qeh2 Bg2 Qh5 Rh7 Bh8 Bf4 Be5 Bg7 Ba8 Bf6 Bb7 Bc3 Ba8 Bh4 Bbd4 Qd2 Bg1 Bcd4 Bb7 Bgh3 Rc3 Qe3 Rca3 Bg2+ Rf3 Bac5 Nd6 Bgh3 Rf1 Kf8 Ba8 Re7 N6f7 Ba7 Bb7 Rc7+ Kd6 Bg2 Bd5 Rd7+ Kc6 Ke7 Qd2 Rdb7 Qc1 Rc7+
3n1qQr/1BQ2r2/2bn1B1Q/bR2Q1Pb/K1Q1q3/2N4n/5q2/QN1kNq1R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 Kb3 e4 g5 e3 b6 h3 f6 h2 f7 e2 b7 e1Q f5 h4 b5 h3 b6 c4+ Ka3 a4 f6 c3 Bb2 c2 Bg2 c1Q Nf3 Nc6 b8N Qc2 b7 Qef2 Na6 Qe4 Nc7 Bg4 b8Q Bh5 Ne1 Nge7 Qc8 Bg7 f8Q Ra7 Qe8 Nf5 f7 Qde7 f8Q Nd8 Kb4 a3 Bc3 Bf6 Qh6 a2 Qg8 Qf8 Nb5+ Ke7 Qc6 Nd6 Qc4 Rb7 Ka4 Kd7 Rf1 h1B Qgg7+ Be7 Qe5 h2 Bf3 Bf6 Bb2 Bg2 N5c3 h1N Qc1 Ng3 Rg1 Ne2 Rh1 Ng1 Qd1 Nh3 Qc1 Nc8 d6 Bg7 d5 Rc7 Qh2 Bd4 Qe5 Bb6 Na3 Rb7 Rb1 Ba5 Ba1 Ra7 Rb5 Rc7 Bb2 a1Q Qd1 Qab1 Qc1 Qbd3 Qa1 Qdf1 Nab1 Rb7 Qh2 Ke8 d7+ Kf7 Qe5 Ra7 Qc6 Nd6 Qb6 Kg6 Qc7 N8f7 d8Q Rb7 Qdb8 Nd8 Qeg7+ Kf5 Qh6 Ne6 Qe8 Kf4 Qeb8 Ke3 Qe8 Nf5 d6 Nd8 d7 Nd6 Qe5 Ne6 Na3 Kd2 d8Q Ra7 Qe8 Nd8 Qeg6 Rb7 Qg8 Ra7 Qb8 Rf7 Qc7 Qf5 Ba8 Bc6 Bb7 Qe4 Nab1+ Ke3 Qf5 Qfd3 Nd5+ Ke2 Bf6 Kd1 Qfe5 Qdf1 Ndc3+
BbnB1R2/B3N1n1/r2k3B/n2q1PB1/8/b4B1N/q2bQRK1/rbq1Q2Q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 Kf2 h5 g4 e5 d4 c5 d6 h3 d5 h2 b6 e4 f6 h4 f7 h3 f5 c4 g5 c3 b7 c2 g6 a4 b5 a3 g7 a2 b6 Ra6 Qe1 Qg5 Bg2 Rh4 Nc3 Nc6 b8Q Na5 b7 Ne7 g8B e3+ Kf3 e2 Qa8 Rh7 b8B Bb7 Ba7 Nc8 Rb1 a1Q Rb2 Bh6 f8B Qa2 Be7 Qd2 Bg5 Qd3+ Bce3 c1B Bf7 Bd2 Bh5 Bf8 Kg3 Qdb1 Bhf3 Qc1 Bh6 Bc6 Beg5 Bb5 Kf2 Bd3 Rb8 Bb1 Kg3 Ke8 d7+ Kf7 d8B Ba3 d6 Rg7 Qf2 e1B Nd5 Ke8 Ne7 Kd7 Qe4 Rh7 Qe2 Bf4+ Kg4 Bed2 Qfe1 Rg7 Ba8 Rg6 Kf3 Re6 Bd5 Re4 Ba8 Ra4 Kf2 Be5 Nf3 Bef4 Rf1 h1Q Ng1 h2 Nh3 Be5 Bgb7 Qe4 Bd5 h1N+ Kg1 Bef4 Rf2 Ng3 Kh2 Qd3 Bf3 Nh5+ Kg2 Ng7 Qh1 Qdd5 Qee1 Ke8 d7+ Kf7 Bdb6 Bh2 d8Q Bhd6 Qc7 Ke8 Qc2 Kd7 Qc4 Bc7 Qce2 Kd6 Rb7 Bb8 Bd8 Qcc5 Ng6 Qc3 Rf7 Qc1 Rf8 Qab3 Q2d1 Bab4 Rf1 Ra1 Qde2 Qa2 Ne7 Ba3 Rf2
Rq2Q2b/1bQBB3/3bq2P/2rq3n/1QQ5/n1QQ1bk1/1N2N1B1/n1K3Rr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 Ke5 h6 c5 h7 f5 d3 g5 Kd2 a5 b6 a4 b5 g4 h5 a3 d6 c4 d7 f3 b7 Kf4 e5 f2 d4 c3+ Kc2+ Kg3 d5 f4 b6 f3 d6 a2 e6 Na6 b8Q Nf6 b7 Nc7 e7 Nb5 e8B Ra5 Bh3 f1Q Qd3 Qe2+ Nd2 Qe6 Qc4 f2 Qbc7 f1B b8Q Bb7 Bg2 Be2 Ba3 Bef3 Kc1 c2 Bc5 Qc8 d8Q Na3 d7+ Bd6 Bb4 Rc5 Ne2+ Kf2 Rg1 g3 Qe7 Qd5 Qa8 Qb8 d8Q Qe6 Bd7 Qd5 Rb1 a1N Rb2 Qe6 Ra2 Qd5 Qde8 Qe6 Qaa6 Qd5 Bh1 g2 Qd3 Qe6 Nc4 Qd5 Nb2 Qe6 Rd1 g1Q Qac4 Qgg8 Bg2 Qd5 Rg1 Qge6 Kd2 c1B+ Kd1 Nb5 Ra8 Na3 Q7f8 Bh6 Qfe7 Bg7 Kc1 Rf8 h6 Nh5 h8Q Bf6 Qg8 Bh8 Qcc3 Rf4 Qgf7 Rh4 Qf4 Rh2 Qfc4 Rh1 Qeg7 Rb5 Qgg4 Bg3 Be7 Rc5 Qb5 Bh2 Qgc4 Bd6 Nd4 Kg3 Qba5 Qf6 Qab4 Qfe6 Ne2+
1b4R1/1R1nb3/kr3PK1/2n1Q2R/1N3Q1R/R2r2nB/bqN1qQ1r/Rr4B1 b - - 0 1 illegal: No possible last move
nnn2K2/Nr1qQQ2/1b2P1bB/5bq1/Q1q2Q1k/1Q1N3B/2R1R2Q/1Nq2r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 d4 a5 b4 f5 h4+ Kg4 e4+ f3 b6 g5 h6 c4 b5 f4 d6 a4 d5 c3 d7 c2 Ke6 a3 Kf7 a2 h7 Bb4 h5 Ba5 d6 Ne7 h6 Rg8 h8Q Kg3 e5 f2 b7 f3 h7 g4 b6 Ra6 Bh6 c1Q Qa4 Ra7 Bh3 f1N Rh2 f2 Nf3 Nd2 Qg7 f1B h8Q Bd3 Re2 Nc4 Ne1 Kh4 Qg6 Bf5 Nd3 g3 e6 g2 Qb2 g1Q Qbb3 Qgg5 Qh7 Qc7 d8N Bd7 Nc6 Nc8 Qg6 Rg7+ Kf8 Be8 Qf7 Qd7 Rc2 Ra8 Na7 Qf1 Nd2 Qff4 Re1 a1Q Re2 Qc1 Nb1 Qe4 Qf6 Beg6 Qf7 Na6 b8Q Qef4 b7 N4b6 Qc7 Qc4 b8Q Rh7 Qbb7 Nb8 Qh1 Rg7 Qh2 Rh7 Nb5 Ra6 Na7 Na8 Qba2 Bb6 Q2b3 Qb5 d7 Qd5 d8Q Qd7 Nb5 Ra7 Qde7 Rb7 Na7 Rh8+ Kg7 Rf8 Qcf4+ Bg4 Qg8 Rf6 Qgf7 Rf5 Qd2 Rf1 Kf8 B4f5 Qdf4+
2NB4/2P1B2k/K2Nrnq1/1BRRQbbn/1BRN4/N6q/4nrq1/1n1b2B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 b4 a5 f4 e5 h4 g5 c4 Kg7 b6 g4 b7 g3 h6+ Kh7 f6 a4 h5 a3 b5 a2 c5 g2 c6 Bh3 b6 Ra5 f7 Ra8 c7 Bg7 f8B Qh4 f5 Qf6 Be3 Qh4 f6 Ra6 f7 Qe1 Be7 Qa5 f8B Nd7 b8R Bf6 b7 Bg5 Qe2 Ndf6 Nf3 g1N Rd8 Re6 b8N Qb6 Na3 Bg4 Qh2 Ne2 Rc1 a1Q Bg1 Qab2 Rc5 Qc6 Qf4 Bf5+ Qe4 Qe8 Rh4 Qg6 Nc6 Qb7 Na7 Qa8 Kc2 d3+ Kb3 d2 Kb4 d1N Kb5 d4 Nc8 d3 Nd4 d2 Rdd5 Qc6+ Ka5 Ndc3 Bd8 d1B Bfe7 Qd7 Qf4 e4 Qe5 e3 Re4 Nc1 Bb5 e2 Rg4 e1Q Rf4 Ng4 Re4 N8f6 Rf4 Kg8 h7+ Kg7 Re4 Rf8 h8N Qf1 h6+ Kh7 Nf7 Nb1 Nfd6 Ne2 Ka6 Nh5 Rf4 Ngf6 Rg4 Kh8 h7 Qg2 Rf4 Kg7 h8B+ Kh7 Bg7 Rf7 Bgf8 Bh3 Rf3 Qd3 Rc6 Ne4 Bf6 Qe8 Ndc4 Bg4 Bb4 Rf8 N4d6 Qg6 Bfe7 Rf7 Re3 Rf2 Rf3 Nef6 Rcc5 Bf5 Rg3 Qdf3 Rh3 Qfg4 Rhc3 Q4h3 R3c4
BR1QNBNb/2Kn4/k5B1/1rRb1B2/nqrr4/1BrbNr2/1Q2P2B/r7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 h5 Kf3 a5 Ke4 f5+ Kd5 d6 b4 Kd7 g4 Kc7 c4 Kb7 e6 d3 e7 d2 e8B f4 b6 f3 g6 f2 g7 h4 b5 a4 c5 h3 g5 a3 g6 h2 Nh3 a2 Na3 Ra6 c6+ Ka8 b7+ Ka7 c7 Qe7 Ng5 Bf5 c8B Rb6 Rb1 a1R Nh7 Na6 Nc2 Nc5 Bg2 f1R Ba3 Na4 Nf6 Rh4 Ne3 Rc6 Rg1 h1B b8B+ Kb6 Qb3 d1R+ Qd3 Ka5 b6 Rd2 b7 Rb2 Qd1 Ka6 Bc7 Rhf4 b8Q+ Rb7 Rb5 Rc3 Qc2 R1f2 Rgb1 Rfc4 Bcd7 Rff4 Qd8 Rf1 Bc5 Rf2 Kc6 d5 Bc8 d4 Bh2 d3 Bd5 Bfe4 Bf5 d2 Qb3 d1R Qb4 Rca3 Bf7 Bhf3 Ne8 Rdd4 Qb3 Nf6 g8B Rb4 g7 Bd3 Qc3 Nd7 B7g6 Bfe4 Rc1 Rf3 Qb2 Rab3 Rc4 Rc3 Bge6 Rb8 g8N Bg7 Kc7 Bh8 Ba8 Qf8 Bcd6 Qe7 Rc6+ Rb6 Bb3 Rbc4 Ba3 Qc5 Rb4 Qa5 Rb5 Bd5 Bf8 Qb4 Rcc5 Rd6 Rb8 Rb6 Bh5 Rb5 Bhg6
7K/1b6/PQB5/RbBqNb1B/4R1rn/r2r2bb/1B1k1n2/R2RNbRN b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kg3 f5 Kf4 h5 g4 b5 a4 c5 d4 b3 e4 b2 d6 Kc6 d5+ Kb6 a5+ Ka6 d7 h4 g6 h3 e6 c4 Ke5 h2 g7 f4 g5 f3 d6 c3 g6 f2 e7 c2 e8B Qc7 d8N Rh6 Nd2 b1B Nc6 Qd8 d7 Ne7 Kf6 Rh4 g8R Rg4 Bb2 c1R g7 Rc3 e5 Bf5 e6 Ng6+ e7 Rd3 Ngf3 b4 Qb3 Kb5 Ne1 Na6 Ne5 Nh4 Bg2 f1B Bh5 Nc5 Ne4 Ba6 Ng3 Ne4+ Kf7 Nf2 e8R Bd6 Bc6+ Kc5 Rg1 Bb5 Nh1 Ra7 Qe6 b3 Re7 Qa8 d8B Kb4 Bb6 Qb7 Rd8 Qd7 Bc1 Kc3 Kg8 b2 Kh8 b1B Bb2+ Kd2 g8R Ba2 Qf6 Bae6 Bc5 Bb8 Rg5 Qd5 Bce8 Bed7 Qb6 Bc8 Bc6 Bc7 Ng3 h1B Rdd7 Bhg2 Nh1 Bh3 Rd8 Bb7 a6 Ra3 Nd7 Bg3 Re4 Ba8 Ne5 Rd7 Ra4 Bb7 Ra5 Rd4 Rg4 Rdd3 Re4 Rg7 Rd7 Rg4 Rc4 Qf3 Rdd4 Qd1 Rcc1 Qb3 Re4 Qd5 Rd1+
RBBbNr2/1Br1b3/2r3rR/n1B1Kb2/2P2R2/1b2N2Q/1Bb3B1/4nqkQ b - - 0 1 illegal: No possible last move
Nn1Q3b/1n1Q2r1/bR2q2Q/1b1Qk2P/7r/BKb1b2N/4Q1BR/1Q1rrR2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 a5 d4 c5 Kd2 g5 Kc2 f5 b6 f3 b7 a4 b5 g4 b6 g3 h6 f4 h7 f2 Ba3 f3 Nc3 g2 Rh2 Bg7 Nh3 g1B Qe2 Nh6 Bg2 Qg8 Rf1 Nf7 h5 Nd8 Kb2 Qe6 Ka2 Rf8 h8Q Rg8 Qh6 Bh8 Kb2 Rg7 e5+ Kd7 d6 c4 Nb5 c3+ Kc2 Kc6 d7 Kd5 Qc4+ Ke4 d5+ Kf5 d6 Ra6 Bc5 a3 Qd5 a2 Kb3 a1B Ba3 c2 Nc7 c1R Na8 Ra7 Rd1 Ra4 Rf1 Ndc6 d8Q Rh4 d7 Bc3 Qc7 Re1 d8Q Bd7 Qcc8 Be8 Qdd7 Nd8 Qcc4 Rd1 Qe2 Re1 Qc7 Bb5 Qd7 Nbc6 b8Q Nb7 Qbd8 Nb8 Qb2 Nd6 b7 Rd1 Re1 f1B Qb1+ Bfd3 Rf1 Be3 Nb6 f2 Na8 Na6 b8R Nb7 Rc8 Re1 Rc6 Nb8 Rb6 Rd1 Rfh1 f1R Rg1 Rfe1 Rgh1 Kg4 Rf1 Qf5 e6 Qe5 e7+ Qe6 e8Q Ba6 Qh7 Bdb5 Qf8 Kg3 Qf2+ Kg4 Qe2+ Kg3 Nf2 Kf4 Qh6+ Rg5 Qdc4+ Ke5 Nh3 Rg7 Qcd5+
2b2QR1/NRrn2bR/K1bR1bR1/b1rP1nB1/1R2qNQ1/b5q1/1N2B3/k7 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 h5 g4 c5 d4+ Ke4 f4 e5 f6 a5 f7 a4 b6 a3 Kb5 h3 f5 a2 b7 c4 d6 h2 g5 c3 d7 h4 g6 c2 f6 h3 g7 Kd5 Bg5 c1B Na3 e4 Ne2 e3 Rb1 a1B Nc4 Ra7 Nb2 Nh6 g8R Nf5 Rg6 Bg7 f8Q Rh5 f7 Qc7 d8R+ Nd7 b8R Qg3 Nf4+ Ke4 Rb7 e2 Qa4 e1B Be2 Bc3 Qd1 Ke3 Qg1+ Kd2 Qg2 Kc2 Qf3 Nb6 Rdd6 Nd7 Qg4 Kb3 Qe8 Ka2 f8R B3d2 Rg8 Be1 Qf8 Bf6 Rb8 Rc7 Rb7 Bc3 Ka6 Be1 b5 Ba5 Nc4 Ba3 b6 B1c3 Nb2 Bg7 Rhg1 h1Q Rh8 h2 Rh7 Bf6 Rg2 Qhe1 Rg1 h1B Rg8 Bc6 d5 Rh6 Nbd3 Rh5 Bf3 Rh1 Rb4 Ne5 Bh4 Be7 Nb2 Nd7 Qg6 Qe4 Be2 Bg7 Qh5 Qh2 Rgg6 Ka1 Bg5 Bef6 Qf3 Ne5 Qg4 B8d7 Ra7 Qg3 b7 Ba4 b8N Rhc1 Bb5 R1c5 Be2 Bc8+ Rab7 Nd7 Nc6 Be7 Rh5 Bef6 Na7 Bc6 Rh7
2rB1qB1/1b2b3/1N1n1BRk/BP3r1n/1RB1QQ2/BN5b/2r2r2/br3NK1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kg7 Kf2 c5 g4 e5 d4 h5 f6+ Kh7 f5 a5 f7 a4 d6 h3 f6 c4 d5 h2 g5 a3 d7 a2 d6 h4 b6 c3 b7 h3 b5 c2 Qf3 e4 Bd2 c1B Ne2 Ne7 Ng3 Nf5 Bc4 Be7 f8B Bb2 Rg1 h1B f7 h2 Ba5 e3+ Kf1 Ra6 Qe4 Rc6 Nd2 e2+ Kf2 e1R Ngf1 Kg6 Rb1 a1R Nb3 Ra2 Rg2 Kh5 g6 Ba1+ Rb2 Rc5 g7 Rc1 g8B Qe8 d8B Nd7 b8N Nf6 d7 Nd6 Rg4 Bf3 Rg7 h1R Rg2 Rh2 Kg1 Rf5 Rg6 Rhc2 Rb1 Bg4 Rg5+ Kh4 Rb2 Nh5 Rb1 Bb7 Rb2 Bf6 Bfe7 Rcf2 f8Q Rb1 Qf7 Rc2 Bf8 Rcf2 Bde7 Rc2 d8B Rcf2 Bg7 Qf8 Nd7 Rc2 Nb6 Rcf2 Bc7 Rc2 Bed8 Be7 Bf6 Rcf2 Nd4 Rc2 Rb4 Rcf2 Nb3 Rac2 Qed5 Bh3 Qd3 Nc8 Bce5 Nd6 Bb2 Rh2 Ba3 Rhf2 Qd4+ Nf4 Qfd5 Qg7 Bc7 Qf7 Bh7 Rc8 Bg8 Qe8 Bd8 Qf8 Rg4+ Kh5 Rg5+ Kh6 Qd2 Re1 Qe4 Nh5 Qdf4 Rb1 Rg6+
1NBQr1BB/P2rnb1n/7r/rR1rQ1b1/N2q4/1B6/1n3N2/1B1RKBkn b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Ke7 a4 h5 e4 f5 d4 c5 e6 Kd6 a5 b5 e7 c4 e8B h4 g6 f4 a6 c3 g5 h3 a7 c2 g7 h2 g6 f3 Ra5 b3 Bc6 b4 Bb7 f2+ Ke2 b2 Rb5 b3 Ba6 Be6 Nh3 Bf7 Bc8 Nf6 g8B Bh6 g7 Nc6 Qe1 Nh7 Nc3 b1R Na4 Bg5 Bb2 c1N+ Kd1 Ra1 e5+ Kc7 e6 Kd6 e7 Nd3+ Ke2 Qb6 e8B Ne7 Rg1 h1N Bed7 Qd8 Bf5 Qd7 Bc3 b2 Be4 b1R Bg6 Kc7 d6+ Kc6 Bb2 Qd8 d7 Rd1 d5+ Kd6 Bd4 Nb2 Bb1 Qb6 Bc3 Qd4 d8Q+ Ke5 d6+ Nd5 Rb7 Ne7 d7 Rd3 Rb5+ Ke4 Qf8 Rb8 d8N Rb7 Nc6 Rd7 Nb8 Rd5 Nb6 Ra6 Na4 Rh6 Qd8 Rd7 Rg3 Rd5 Ba2 Rd1 Rd3 Ra1 Bb1 Rd7 Nb6 Ra5 Na4 Rd5 Ng1 Kf4 Rd1 Kg3 Nh3 Kh2 Ba6 Rd7 Bc8 Bd5 Be6 Re8 g8B Ba2 Bb3 Rd5 Bg2 f1R Nf2 Rg1 Bgh3 Rg3 Bf1 Kg1 Rb4 Rd3 Rb5 Qb6 Bh8 Qd4 Qc3 Rd2+ Ke1 Rd7 B3c2 Bf7 Qc5 Qe4+ Qe3 R2d5 Bb3 Qd4 Qe5
3bnNb1/nR2n3/3R4/2bBKRBb/4N2Q/2krrRR1/4nP2/1B1RqQr1 b - - 0 1 illegal: No possible last move, all moves rejected
2r2R1n/7n/2qnn1N1/1rBB1r1B/4BP2/RB2rbNB/4NkQQ/2bb3K b - - 0 1 illegal: No possible last move
Qnr5/1b2N1N1/N1rkr2P/2N1nN2/2RB2nK/b2qNr2/4nB1R/2QB3b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 a5 b4 c5 d4 f5 h4 g5 e5 f3 Kg3 a4 b6 c4 h6 c3 d6 c2 h5 f2 b7 g4 e6+ Kc6 d7 a3 d5+ Kd6 e7 f4+ Kh4 f3 b5 g3 b6 a2 h7 g2 h6 Ra6 Rh2 Ke5 d6 Qe8 d8N Qc6 e8N Ra5 d7 Qd5 Na3 Qb3 Ng7 Rd5 Nc6+ Kd6 d8N Qd3 Ne7 Nf6 Be3 c1N Nc2 Rc5 Ne2 g1N Ng3 Nge2 Nde6 Rc6 Nc5 Ng4 Rb1 a1R Rb4 Ra7 Rc4 Ra6 Bg2 f1B Bf2 Rg8 Ne3 Rh8 Bh3 Bg2 Qg1 Rg8 h8B Bh1 Qe1 Qg6 Qd1+ Nd3 Qc1 Nde5 Bg2 Qd3 Bh3 Nbd7 b8N Bb7 Bg2 Ra4 Nba6 Nb8 Rc3 Rf4 Rc4 Rf6 Bf1 Re6 Bh3 Nf6 Bf5 Nfg4 Be4 Qd1 Bc2 Qd3 Bd1 Bc8 Be1 f2 b7 f1R Bf2 Nf7 Bg1 Rf3 Bf2 Nfe5 Nc7 Na6 b8Q Bb7 Qa8 Nb8 N7h5 Ned7 Bd4 Nde5 N7a6 Rg7 N7d5 Rgc7 Ng7 Rc8 Kg5 Be7+ Kh5 Bd8 Ne7 Ba5 Kg5 Bb4 Kh4 Ba3 Ng3f5+
4QQ2/1nr1N1B1/3k1P1r/b2Qn3/nRq2B1Q/1b1N3B/1bQr2nK/1Rb3Q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 h5 Kf2 a5 g4 c5 Kg2 e5 b4 c4 b6 c3 b5 c2 d6 h3+ Kh2 e4 f6 h4 g5 a4 f7 a3 b7 e3 d5 a2 f5 e2 f6 e1N b6 Ne7 g6 Rh6 g7 Nec6 g8Q Qc7 Ne2 Na5 Nf4 Nbc6 b8B Ng2 b7 Ne5 Nd3 Qc4 Nc3 Ra7 Rb1 a1B Rb4 Bb2 Qe2 Be7 f8Q Bd8 Bf4 c1B Qc2 Nf7 Bc7 Ne5 b8Q Nb7 Qh8 Ra2 Qa7 Rh7 Bb8 Ba5 Bh6 Rf7 Ne2 Rg7 Nd4 Rf7 Nc6 Rg7 Kg1 Re7 Bg7 h2+ Kf2 h3 Kg3 Rf7 Qh4 Re7 Rg1 h1N+ Kh2 Nf2 Qe3 Rf7 Ne7 Ne4 Rh1 Nc3 Qg1 Nc6 Ba7 Ne5 Be3 Na4 Bf4 Qc7 Qfh8 Qc4 Q8h6 Kd8 d7 Kc7 Qh8 Kd6 d8Q+ Bd7 Qde8 Bg4 Qhf8 Bd1 Qe2 Bb3 Qd2 Ba1 Qc2 Bab2 Qh5 Bd8 Nc8+ Kc7 Qcd1 Be3 Qf2 Bbd4 Kg3 h2 Qc1 Re2 Qc2 Nh4 Qg5 Rd7 Ne7 Bb2 Bg2 Bd2 Rb1 h1R Qg1 Bdc1 Bf1 Rd2 Qg4 Nf3 Qg5 Rh4 Bh3 Rh6 Qh4 Ne1 d6+ Kb8 Nd5 Ng2 Kh2 Re7 d7 Rf7 Ne7 Kc7 Nc8 Re7 Qg5 Kc6 Qh4 Ba5 d8Q+ Rd7 Qdb6+ Kd5 Qbd4+ Kc6 Qe4+ Kc7 Ne7 Kd6 Qf3 Rc7 Qd5+
1NrRr3/1BBrqB2/2q1Pn1n/1nbBR3/6Q1/5NKN/6b1/BR1nr1Rk b - - 0 1 illegal: No possible last move, all moves rejected
1B3B2/1b1P1rNB/5Nb1/1b1q3n/1R2n1Qq/1N1R2Br/4kN1b/Rrr1B2K b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 f4 Kf6 Kf2 c5 g4 a5 Kg2 e5 b4 h5 b6 c4 d6 e4 b5 c3 d5 a4 b7 h3+ Kh2 a3 b6 h4 d7 c2 d6 a2 Nd2 e3 Nb3 e2 Bd2 e1Q Bd3 Na6 b8B c1R b7 Ra7 Bc3+ Qe5 Be1 Qd5 Qe2 Qe7 d8R Nc5 Qf3 Ne4 g5+ Kf7 g6+ Kf6 g7 Bd7 Rb1 a1R Qg4 Bb5 Bc7 Rh7 b8B Rh5 Rb2 Rab1 Rd7 Kf7 Rd8 Ngf6 g8N Rh6 Bc2 Nh5 f6 Rh8 f5 Bh6 Ne2 Bf4+ Ng3 Rb7 Kg1 h2+ Kg2 Be5 Rf1 Rh6 Nh1 Bf4 Nf2 h1B+ Kg1 h3 Bd3 Bf3 Bc2 Bfe2 Kh1 h2 Rd7 Bed3 Rg1 Kf8 f7 Qh4 Nf6 Rh7 Nc5 Bg3 Rb4 Rh8 Nb3 Rh7 Qd1 Kg7 f8N+ Kh6 Ne6 Ra7 Ng7 Kg5 Rd8 Kf4 Qg4+ Ke3 d7 Ra4 Re8 Ra3 Re6 Be5 Rd6 Bg3 Ng8 Bf4 f6 Be5 f7 Bg3 Qh3 Ke2 f8B Be5 Nf6 Bf4 Kg2 Be5 Rf1 h1B+ Kg1 Bf3 Qg2 Bh2+ Kh1 Nc5 Rg1 Bg6 Bf5 Ne4 Rf1 Qe5 Rd3 Qc5 Bg3 Qd5 Ne6 Re7 Ng7 Rf7 Be6 Re7 Bg8 Rf7 Bh7 Qf5 Bge5 Rc6 Na5 Rb2 Rd1 Ng5 Bd2 Rac3 Ra1 Rb1 Rd1 Be4 Bed6 Rh3 Be1 Rcc1 Rd3 Bb7 Nb3 Ne4 Qg5 Qc5 Bg3 Qd5 Qg4+
Q1nBk1N1/1K1bq1r1/B1n2n1B/3QBB2/NRR4b/4q1p1/3P3r/N1r1b1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 g5 Ke4 c5 b4 f3 h4 a4 d6 f5+ Kd5 f4 e4 g4 h6 g3 e5 a3 h7 c4 b6 f2 e6 f3 e7 c3 d7+ Kf7 e8B+ Ke7 b7 a2 h5 c2 b5 Ra7 h6 Ra3 b6 Qc7 Bg6 Ra6 d8B+ Kd7 Bf5+ Ke8 Nc3 Ra3 Nge2 Qf4 Na4 Qg4 Rh4 Rc3 Rb1 a1R Ba3 c1B Rb4 Be7 Nd4 Bb2 Ba6 f1Q Nc2 f2 Qf3 Rc1 Na1 Qg5 Rhc4 Nc6 b8Q Bd7 b7 Qe3 Qa8 Bh4 b8B Qfe2 Ba7 f1N Qg2 Qe7 Bg1 Nh2 Qh1 Q7e3 Kd6 Rd3+ Kc7 Nge7 Qd5 Bd4 Kb7 Nc8 Bb2 Bb6 Bg7 Ng4 Bf8 Nf6 Bg7 Rg8 h8N Rd4 h7 Qe1 Bf8 Rg7 Ng6 Qe7 h8B Q1e3 Ne5 Rf4 Nf7 Rf2 Nh6 Rh2 Ng8 Qa3 Rb3 Bf2 Rb1 Qae3 Rbb4 Rh7 Bhg7 Be1 Bh6 Rf7 Bf4 Rh7 B8h6 Rg7 Be5
1n1N3r/7B/2RK1Bq1/1r2Q1n1/2RNB2p/1B1Pr1Q1/1bb1B2k/qRBbq3 b - - 0 1 illegal: No possible last move, all moves rejected
1B1B2B1/3Nq3/B3N2b/Q3K1n1/RP1r1p1k/2rBQq1n/1RbB4/n1R1q2b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 a5 Ke4 f5+ Ke5 h5 g4 c5 d4 a4 b4 f3 e4 h4 b6 h3 d6+ Kf7 b7 Kg6 d5 f4 d7 f2 d6 c4 Na3 c3 Ne2 c2 Qd3 h2 Qe3 Na6 b8B Qc7 d8Q Rh3 Nd4 Bh6 Bd3 f1B Ne6 Bb7 Nc4 a3 Bd2 c1Q Nb6 a2 Nd7 Qe1 Rb1 a1N Rb2 Bd5 Rg1 Qb7 Qa5 Nc7 Ba6 Bd3 Rh1 Qe2 Rc1 Bc2 Bd3 h1Q Ba6 Qhf3 Bd3 Kh7 g6+ Kh8 g5 Qe1 g7+ Kh7 Ba6 Nf6 g8B+ Kg6 Bh7+ Kh5 g6 Kh4 g7 Bc6 g8B Ng4+ Kd4 Ra7 e5 Nf2 Bhd3 Rg3 Nf6 Ra8 d7 Nh3 d8B Be4 Ng5 Bc6 e6 Bd5 e7 Ne6+ Ke5 Qa7 e8R Qe7 Qb6 Ra7 Rf8 Rd7 Qa5 Bc6 Rf7 Rd4 Nd7 Bd5 Nh7 Bb7 Nhf8 Neg5+ Ne6 Qfd1 Rg7 Bh1 Rh7 Qf3 Nb6 Qf8 Ra7 Qe7 Nd7 Qc6 Bf5 Bb3 Qa4 Rd3 Qe2 Qf1 Bc8 Rd4 Qe4 Rgd3 Qe3 Rc3 Bd3 Bc2 Ra5 Qf2 Bca6 Qcf3 Qb5 Qf1 Ra4 Qe1 Qa5
N2rq2B/1b2R2r/Nb4R1/1P1n4/1p2Q1K1/n3k3/Qq1bNR1r/R1nBR1R1 b - - 0 1 illegal: No possible last move, all moves rejected
q2n1n1B/B2Br2N/R5Pr/K1nQq2B/N1B5/3bqp1R/k1B2rQ1/b4N2 b - - 0 1 illegal: No possible last move, all moves rejected
1q5N/2nRn2n/bbq1pr1B/2N5/N7/BRKQ1rR1/1r1P1NRb/2RBk3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 g4 Kf6 b4 h5 d6 a5 b6 c5 b5 h3 d7 h2 b7 h4 b6 h3 Qf3 a4 Be2 a3 Kd1 c4 Kc2 c3 Qd3 a2 Ba3 e6 Bd1 Na6 b8N Nc7 b7 Bd6 Na6 Ne7 b8R Rf8 Nc5 Ba6 Rb3 Qb8 d8R Ra7 Rd7 Rb7 Ne2 Be5 Rg1 h1R Rg2 h2 Ng3 Rf1 Nh1 Rf3 Nf2 h1N Rg3 Rb6 Rg2 Ng3 g5+ Kf7 g6+ Kf6 g7 Ne4 g8R Ng5 Rg7 Nh7 R7g3 Rb7 Kc1 c2 Nc3 Rb5 Kb2 Bd6 Rc1 a1B+ Ka2 Rb7 N3a4 Bae5 Nh1 Bd4 Nf2 Be3 Kb2 Rb5 Nb7 Bb6 Kc3 Kf7 f6 Rb4 Rbb1 Rb2 f5 Bf4 Nbc5 Bd6 Rh3 Bh2 Rhg3 Ra2 Rb3 Rb2 Rb1 c1Q+ Kb4 Qc2 Rc1 Qb1 Kc3 Qa2 Rb4 Qd5 Rb3 Qc6 Ng4 Kg8 f7+ Kg7 Nf2+ Kh6 f6 Kh5 Rd6 Kh4 Rd7 Rg8 f8B Rg6 f7 Rgf6 Bh6 Qba8 f8N Qab7 Rg5 Qb8 Ng4 Kh3 Rg7 Kh4 Ng6+ Kh3 Nh8 Kh4 Re2 Kg3 Re3 Kg2 Re2+ Kf1 Rg2+ Ke1 Nf2 Bd6 Rg8 Bh2 R8g3
nBKQq1nq/3B4/2NP2rR/k1n1r2B/3QB1qN/B5b1/R1b1Bp2/5Rb1 b - - 0 1 illegal: No possible last move
qrQ2K2/br4PR/Bn1Rbk1p/6rb/R1n5/1qnR2R1/B1N1Q1R1/4B2N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 c5 Ke4 a5 Ke5 f5 g4 c4 e4 a4 b4 c3 d4 c2 b6 a3 b5 f3 d6+ Kf7 d5 f4 b7 f2 b6 a2 d7 f3 g6+ Ke7 g5 Ra5 g7 Nh6 g8B Ra3 g6 Ra8 g7 Nf5 Ne2 Nd6 Ng3 Ra7 Bd2 c1N Na3 Ra5 Be1 Qc7 d8R Qc6 Nc2 Qe8 Qe2 Na6 b8R Qa4 b7 Nc5 Ra8 Rb5 b8R Qb3 Ra3 Be6 Rh2 h6 Rg2 Rb4 Nh1 Rb7 Bf7 Na4 Ra8 Nb5 Rd6 Nb6 Bg8 Nc3 R8a4 Ke8 Kf6 Nd3 e5 Nb2 Rd1 a1Q Rd3 N2c4 Kg6 Ke7 Bf7 Bh3 e6 Rg8 Kh7 Kf6 e7+ Be6 e8Q Be7 Qc6 Rgb8 Qc8 Bd8 Kg8 Be7 Rd8 Bc5 d6 Bd4 d7 Be3 Qd1 Bc5 Be2 f1B Re8 f2 d8R Be3 Kf8 Bd4 Rdg3 Qaa2 Bd3 Be2 Rd6 Bh5 Qe2 f1R Red8 Rf5 Bg8 Ne3 Ba6 Rg5 Qd7 Qbb2 Qc8 Ne4 Bb5 Nbd5 Rd3 Nec3 Rb4 Qa8 Ba6 Ba7 Ra4 Nb6 Bf7 Qa2 Kg8 Qa3 R6d7 Bf5 Ba2 Nec4 R7d6+ Be6+ Kf8 Kg6 Ke8 Nd7 Ke7 Qb3 Rh8 Ndb6+ Kf8 Kf6 Rh7
rbq3B1/1r1nRp1B/kB1NqQ1K/1n1n2N1/QPb5/R4BB1/B5qb/1R6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 b4 c5 e4 Kc7 d4 Kb7 g4 a5 g6 h4 e5 a4 g5 c4 d6 c3 d5 c2 g7 a3 b6 a2 g6 h3 e6 h2 Kg4 f3 d7 f2 e7 Nh6+ Kg5 Ra5 Nd2 Nf5 d6 Qe8 d8B Qb5 e8B Qa4 d7 Qc6 Nc4 Qa4 Bf4 c1Q Nh3 Qb5 Qa4 Ra8 Bc7 Qc5 d8Q Qe5 Qf6 Bd6 Be2 f1N Bd7 Qe7 Be6 N1e3 Bg3 Nd7 Bd8 Nd4 Bf3+ Nc6 Rf1 h1Q Bed5 Qc3 Rfb1 Qg2 Be6 Ne5 Bed5 Qe6 Bc7 Re8 Kh6 Re7 Ng5 Qcc2 g8B Qc1 g7 Bd7 Qb3 Ka6 b7 Na7 b8R Bb5 Be1 Rd7 Ba5 Rb7 Qa4 Nd7 Re8 Bb8 Nd6 Qc8 Bg3 Bd3 Bc4+ Nb5 Re7 Nd5 Bh7 Be2 g8B Bd3 Rb3 Be2 Rab1 a1B Bf2 Bb2 Ra3 Be5 Ba2 Bh2 Bg3 Bc4 Bb6+
r1r2B1q/Nb3p2/4rB2/PB2bBR1/3Nb1nn/1q2qkBN/N2QR3/K6R b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 e4 g5 h4 b5 d4 c5 Kd2 c4 Kc2 g4 Kb2 b3 h6 g3 a5 g2 h7 b4 d6 Kc6 d7 Qc7 d8N+ Kb5 d5 Kc5 h5 Bg4 d6 Bd7 h6 Qc6 e6 Be7 e5 Bf6 e7 Qc8 e8B Ne7 Nh3 g1Q Qd2 Ng6 Nc3 Nh4 e6 Nc6 e7 Be5 Bd3 Kd4 Na2 Qe3 Ne6+ Kd5+ Kb1 c3 Ba3 b2 Nd4 Be6 Bd7 Re8 Bb5 Ke4 h8B Bd5 h7 Qd8 Bf6 Qb8 Nb3 Kf3 h8B Qd8 Bf5 Qc8 Nac1 c2+ Ka2 Qb8 d7 Rc8 e8R b1R Ne2 c1Q d8N Qc4 Nc3 Re1 Rd1 Re2 Rdg1 Qcd4 Ka1 Qb7 Nc5 b3 Rg5 Be4 Nce6 b2+ Ka2 b1B+ Ka1 Ba2 Bf8 Bad5 Bhg7 Qb8 Bd6 Qb4 Bgf8 Qb3 Bc7 Bd6 Re7 Ne5 Nc6 Ng4 Na7 Bb7 Na2 Bf4 Bc3 Bh2 Bg3 Qe5 Bb2 Qg7 Bf6 Qh8 Be1 Bf4 Bg3 Be5+ Nd4+ Kg2 Rc7 Bec6 Ba6 Qf3 Bc5 Bd6 Qb4 Re6 Bb5 Be5 Bf8 Be4 Rcc1 Qfe3 Rce1 Rcc6 Qc3 Rcc8 Re2+ Nf2 Ndc6 Kf3 Qb2 Ng4 Qd4 Bc7 Qd2 Be5+ Nd4+
1BB1R1b1/1b1PnkqB/7r/pr1Rr1RQ/4Q3/q1q2N1B/6K1/1BN1bB1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 h5 b4 c5 e4 a5 d4 f5 g4 c3 d5 h4 d6 h3 b6 h2 b7 c2 g6 c4 g5 f4 g7 c3 b5 f3 g6 Nd7 b8R Qg5 e6 Rh3 b6 Rh8 e7 Qd2+ Ne2 Ne5 b7 Qh6 Rg1 h1B Bf4 c1R Nd2 c2 Rg5 Nf7 e5 Nf6 g8B Rb1 g7 c1Q Bh7 Rb4 g8B Nd8 Ba2 Nc6 Bab1 Qc3 Nc1 Qg7 Qc2 Kf7 Qe4 Bf5 Re8 Rb5 b8Q Be6 Qb6 Ba2 Qc5 Nh5 Kg1 Ng3 e6+ Kf6 Kh2 f2 Nf3 Bb3 Bh3 f1Q Ra2 Qfc4 Rd2 Q4b4 Rdd5 Qa3 Bf1 Rbb8 Qb5 Ra7 Qbe2 Rb5 Kg1 Rab7 Qh2 Bg2 Qh5 Nh1 Bh2 Rc5 Bg3 Rbb5 Kh2 Bh3 Bf4 Bf5 Kg2 Bg6 Bh2 Bf7 Bg3 Bg8 Rd2 Na7 Rb8 Qg6 e8B Qc2 e7 Qg7 Bhg6 Rh6 Bd7 Nc6 e8B Bbd5 Bh3 Be7 Bh7 Bd8 Rg4 Qcc3 Bd7 Bb6 Ra8 Ne7 Re8 Bb7 Bc8 Ba7 Rg6+ Kf7 d7 Bb8 Bh2 Bg3 Rd1 Bh4 Bb8 Re5 Rd5 Be1 Rg5+
rbNB2NR/1npQ1Rq1/5B2/3brQ2/nKP4b/rR2q3/1R1R3k/R2N1q2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Bh3 Be7 fxg5 Nf6 g6 Bf8 g5 Ng8 Bg4 hxg4 Kd2 Ke7 Kc3 Ke6 b4 Kf5 h4 d5 e4+ Ke6 b6 a5 g7 f5 b7 a4 h5 f4 b5 a3 b6 g3 g6 a2 h6 f3 h7 g2 Nd2 f2 Qg4+ Ke7 e6 Kd6 e7 Ke5 e8R+ Qe7 Rh2 f1R Nh3 g1B Nf2 Nc6 b8R Be6 b7 Nf6 g8N Nd7 g7 Na5 Rg2 Qg5 Re7 d4+ Kb4 d3 c4 Nc5 Rf7 Re1 Rd8 Bd5 b8R Nab7 Qf5+ Kd4 e5 Ke3 e6 Be7 Rd7 Ra3 Nde4+ d2 Nd6 Na4 Rh2 Bf6 e7 Ke2 e8Q+ Kf1 Nc8 d1Q Rd6 Qe3 Qed7 Bh4 Bb2 Re2 Bf6 Qdc1 Rh3 Kg2 Bd8 Qf1 Rg3+ Kh2 Rf3 Qf4 Rb3 Re5 Rb2 Qe3 Rb3 Bc6 Rd2 Bg2 Nf6 Rhe8 h8B Bd5 g8R Rf8 Bg7 Rfe8 Rh8 Rf8 Rab1 a1Q Ng8 Qad4 R1b2 Qg4 Bgf6 Qg7 Ra8 Rfe8 Nd6 Rf8 Bde7 Rb8 Bd8 Rc8 Ra5 Ra8 Nc8 Qee2 Ne4 Ba7 Nf2 Qe3 Ra6 Ra1 Qfe6 Nc3 Qf5 Bb8 Rc6 R1a7 Rc5 Ra6 Ra5 R6a7 Raa2 Ra3 Ra1 Na4 Nd1+
2qb3K/P5r1/1R1r1RRN/1q1N2n1/R2nN1Bp/3Q1b1n/1k1BB1q1/1N1R2r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Nc3 Kd7 Ke2 Kd6 Ke3 Kc5 Ke4 b5 Ke5 h5 g4 h4 f4 e6 a4 c6 d4+ Kb6 d6 Ka5 g6 c5 d5 c4 d7 b3 f6 Kb4 g5 b2 g7 b1Q d6 Ra7 g6 Rc7 f5 Ba6 a5 Nh6 g8B Qe8 d8N Qc6 d7 Qb2 g7 Be7 f7 Bb7 f8R Qcg2 f6 Bf3 Rb1 Ka3 f7 Rh7 a6 b4 a7 b3 Ne2 Rc6 Rh3 Ra6 Nf4 Bg5 Rg3 Ng4+ Kd4 Be7 Nb7 Nf2 Ke5 Nh3 d8R Rb6 Rd6 Bd8 Rg6 Rc6 Rd5 Rd6 Be3 Qc1 Nc5 b2 Rd4 Qcc2 Nfd5 Qa4 Re8 Qc6 f8R Qc8 Re7 Nc6+ Kf6 e5+ Be6 e4 Bf4 e3 g8N e2 Be3 e1Q Nh6 Qee2 Rd2 Qd3 Be2 Ne5 Bf4 Nf7 Qc2 Nfg5 Be3 Rh8 Kg7 Rh7+ Kg8 Rg7+ Kh8 Qb7 Bg4 Qc8 Rff6 Qdf5 Re4 Qfd7 N3a4 c3 Qd1 c2 Nac3 c1N Qc2 Qa4 Qd3 Nb3 Rd4 Qa5 N5e4 Qa4 Rb4 Nd4 Rb6 Qb5 Ra1+ Kb3 Ra4 b1R Bf4 Rg1 Rd1 Kb2 Nb1 Qc1 Be3 Qc8 Bd2
B2B1NNq/pq2qb2/7N/r5N1/1Q1Q1P1K/k1bbr1NR/3rnR2/1n3Q1N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 c5 b6 e5 b7 h5 f6 c4 g5 c3 f7 c2 g6 h3 g7 h4 b5 h2 b6 h3 Bg2 e4 Bg5 c1R f4 e3 Ra2 e2 Kf2 Rh4 Kg3 e1Q+ Rf2 Qe4 Ne2 Qc7 Qf1 Re1 Bd8 Rh5 Nd2 Nf6 g8N Nc6 b8Q Be6 b7 Bg7 f8N Bf7 Bf3 Rf5 Kh4 Qe7 Ng3 Re3 Nh7 Ne4+ Ng5 Nc3 Nde4+ Kd7 d6 Nb1 d5 Bc3 Bg2 Nd4 Bf3 Ne2 Bg2 Ke8 d7+ Kf8 d6 Ra5 Qc8 Qb6 b8Q Qb4 Qc5 Qb7 Qbc8 Rb8 Qb4 Ra8 Qcc5 Rc8 Rg1 h1B Qcd4 h2 Bf3 Bg2 Nh1 Bh3 Bg2 Bf5 Neg3 Bd3 Be4 Rcc5 Rgg2 Rd5 Rf3 Ra2 Rgf2 Rda5 Bc6 Rd2 Be4 Qa6 Ba8 Qc6 Bb6 Qc8 d8N Qcb7 Ne6+ Ke8 Bd8 Kd7 Nf8+ Kc6 Qa3 Kb5 d7 Bfc4 Qb2+ Ka4 Qbb6 Ka3 Qb4+ Ka2 Bc7 Bb3 d8N Bbc4 Nf7 Bd5 Nfh6 Bf7 Qbc4+ Kb2 Bd8 Ka3 Ne4 Ng1 Rh3 Ne2 Nhg3 h1Q Qb5 Qf3 Nh1 Qb8 Neg3 Qfb7 Qbc4 Qbe5 Qb5 Qh8 Qbb4+
bQ4B1/n2Qn3/3N1N2/1n1b1Q1R/k3BKpr/Qr1P1b2/2R1q1QB/4bQ1b b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 c5 h4 g5 e4 f5 a4 b5 e6+ Kc7 e5 Kb6 d6 Ka5 d7 b3 h6 g4 h7 b2 d3 b4 e7 b3 e8Q c4 h5 c3 e6 c2 e7 Na6 h6 Ra7 Na3 b1B Nh3 b2 Qf7 Qc7+ Bf4 c1N e8B Nb3 d8Q Nd4 Qdd7 Nb5 Nf2 Ne7 Rh5 Ba2 Rc1 b1B Ne4 Nb8 Nf6 Rb7 Bg2 Bd5 Rc2 Bf3 Qf1 Ba2 Nc4+ Kb4 a5 Nbc6 a6 Nca7 Qg6 Qe5 Bf7 Ka4 Nd6 Qe2 Bg8 Bad5 Be5 Rb8 Kf4 Ba8 Qf7 Bcb7 Qd5 Bg7 Qc5 Bfd5 Be4 Bbc6 Qcf2 Bf8 Q2g2 Rb6 Kg5 f4 Qf5 f3 Bh2 f2 Kf4 Nac8 a7 Bg7 Nd7 Bc3 Nf6 Be1 Qd7 Na3 Qf5 Rb3 Qd7 Nb5 Qf5 Bab7 a8Q+ Nca7 Qd8 Ba8 Qdd7 Bcb7 Bf7 Rd8 h8Q Bbc6 Qg7 Rh8 h7 Bcb7 Qf8 Bbc6 Qfh1 f1B Bg8 Bcb7 Qg3 Bg2 Qf1 Bf3 Qgg2 Bbc6 Bf7 Rg8 h8Q Rg6 Qb8 Rh6 Qhf8 Bcb7 Bg8 Bbc6 Rg5 Rh4 Rh5 Be6 Qgf2 Nec8 Nde8 Bh1 Q2g2 Bf7 Bd5 Be6 Qc5 Ne7 Nd6 Bcb7 Bc4 Bf3 Bd5 Bf7 Be4 Bfd5 Qa3+
2nBNqNB/r3Q3/2B1rnR1/1RbB4/1pb3P1/2R2bNr/2K2kN1/N3r1r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 Kd2 b5 g6+ Kf6 g7 b3 a5 h4 d6 b4 d5 h3 a6 h2 d7 e4 d6 b2 a7 c4 Ne2 c3+ Kc2 e3 Ra6 Nh6 g8N+ Kg7 f6+ Kg6 f5+ Kg5 f7 Kh4 f6 Be7 f8N Nf5 f7 Ng3 Ne6 Bb7 f8N Qb6 d8R Nf5 d7 Bf3 N6f4 Qf6 Nh7 Nd6 Nd2 b1R Nb3 Nc8 Qd6 Qf8 Ng3 e2 Bb2 e1R Na1 Re6 Bb5 Rbe1 Nhf6 Rh7 Qe5 Bc5 Ne8 Rh5 Rf1 h1B Bc6 Be2 Ra5 Bc4 Rb5 Bf3 Ng2+ Kh3 Qd6 Kh2 Rf2 Kg1 Qe7 Rh8 Re2 Rh3 Re3 Kf2 Rd3 Na6 Bd5 Nc7 Bc6 Nd5 Re3 Rb8 a8B Nf6 Bd5 Rg1 Bac6 Ra8 Rd3 Ra7 Re3 Nb6 Rb8 Nc8 d8B Bf1 R8b6 Bd3+ Kb3 c2 Be5 Bde2 Rc3 c1R Kb2 Rce1 Kc2 Nh7 Bh8 Bc4 Bb7 R6e4 Rh6 Nf6 Bbc6 Re6 Rg6
2N1RqB1/4RRQR/Qr2brbb/3PnB1k/7R/2N1B3/1pRr4/1b2bK1n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 f6 Kg6 f5+ Kh7 a5 b5 f7 c4 a6 c3 a7 e4 g6+ Kg7 g5 c2 d6 h4 d5 e3 d7 b3 Qg4 b4 Ra2 e2 Nh3 b2 Be3 c1B Nc3 b1B Nf4 h3 Rc2 h2 Bh3 b3 Qg2 Bb4 f8R b2 Re8 Qe7 d8R Nc6 Rd7 Rb8 a8Q Rb6 Qa6 Rh6 Bg4 Qf7 Ree7 Nf6 Kf2 Nh5 f6+ Kf8 Ra7 e1R Bf5 Re2+ Kf1 Rd2 g7+ Kg8 Qg3 Be6 Ng6 Kh7 g8R Ne5 Rge8 Qg7 f7 Qf8 Rac7 Ba5 Rc4 Bb4 Rh4 Ba5 Rg1 h1B Rg2 Bb4 Rgh2 Be4 R2h3 Nf6 Qg2 Nfg4 Qg1 Nf2 Qg3 Qg7 f8R Nh1 Rff7 Rd4 Na2 Be1 Nc3 Rd2 Nf8+ Kg8 Nd7+ Qf8 g6 Kh8 g7+ Kg8 Bg4 Kh7 g8B+ Kg6 Rh2 Rb5 Nb6 Rb3 Nc8 Rb6 Rf4 Kg5 Qg1 Rf6 Rhh7 Bg6 Rhf7 Bh4 Bf5+ Kh5 Rc4 Bh7 Qg7 Bg6 Rg2 Be1 Rcc7 Nc4 Rg4 Ne5 Rcc4 Re2 Bh6 Bf4 Rg3 Rd2 Rg2 Kh4 Rh2+ Kg3 Bg5 Kf3 Rh7 Be3 Bh4 Bh6 Bg5 Kg3 Bf4+ Kh4 Be3+ Kh5 Rh4+
1R1BkR2/r2RB1bn/n1q4r/B2pn3/R2N3Q/1rBPB3/N1N2Kn1/6nb b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 f4 e5 h4 d5 c4 g5 f6 a5 d3 b4 c5 e4 c6 g4 f5 b3 h6 g3 h7 e3 f7+ Ke7 h5 a4 f6+ Kd6 c7 Kd7 h6 e2 Na3 g2 Be3 b2 Kf2 e1N Ne2 g1N Nc2 b1R Nc3 a3 Qg4+ Kd6 Na2 Nc6 b8N Ng2 b7 Ra7 Qh4 Bg7 f8R Na5 f7 Nc4 Nc6 Kd7 b8B Nf6 N6d4 Ne5 Rh3 Rb3 Rf3 Rg8 h8B Qe8 h7 Qe6 Rf5 Qc6 Rd8+ Ke7 f8B+ Kf7 Rd6 Ke8 Be7 Bd7 Rf4 Bg4 Rd7 Bf3 Bd8 Rf8 c8R Rf7 Rb1 Re7 Bd6 Re6 B6e7 Rd6 Nc3 a2 Rf1 a1N Na2 Be4 Rb8 Re6 Ne1 Nc2 Rg4 Nb4 Nec2 Bf8 Bg7 Rd6 h8B Nh7 Bgf6 Na6 Ba5+ Kf7 Bed8+ Ke8 Bfe7 Rh6 Nf5 Nf7 Bhc3 Ne5 Kg3 Bg7 Rf3 Ne1 Kf2 Qe6 Rff4 Bh1 Rf3 Qc6 Ra4 Ng2 Nfd4 Qc4 Rf6 Qc6 Rf8+
r4nb1/bn2b2b/q3N2p/1RB5/B3N2k/2P2B1R/QrB1B2Q/KR2Bb1n b - - 0 1 illegal: No possible last move, all moves rejected
5b2/B1Q2r1q/bB1n1PbN/1n4B1/k2bN1r1/Q3Rbn1/2pN1K2/2BR1BB1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 g4 e5 g5 c5 b6 a4 b7 c4 b5 c3 f6 c2 f5 e4 f7 h3 f6 e3 b6 e2 d6 Kc6 d5+ Kb5 d7 h4 d6 a3 g6 h2 g7 h3 Qd2 a2 Qh6 Ra7 Qe3 Na6 b8B Qe7 d8Q Rh4 d7 Ka4 b7 Nc5 Bg3 Nh6 g8N Rg4 b8B Nb7 Bgf4 Nf5 Nf3 Ng3 Bg5 Nd6 Nbd2 Ba6 Kf2 e1N Nh6 Rb7 Rg1 h1B Qc7 h2 d8B Qd7 Rb1 a1B Ba7 Bd4 Rb3 Bg2 Rd3 h1B Ne4 Qe7 Nfd2 Bf3 Qc8 Qd7 Bdb6 Qf5 Qc7 Qh7 Bh3 Bhg2 Rb3 Bgf1 Rh1 Bfd3 Bf1 Nb5 Rg1 Ng2 Rc3 Nh4 Rb3 Ba3 f8B Nhf5 Bfc5 Bb4 Bg2 Nfd6 Rd1 Bc4 Rc3 Bf7 Bf1 Bg6 Rb3 Be5 Qc3 Ba3 Qb2 Bd4+ Re3 Bb4 Qb8 Rf7 Qc7 Ba3 Ke1 Nc4 Bd6 Nh1 Bh2 Ng3 Bg1 Bf8 Kf2 Ncd6 Qa3+
RQr3N1/n1n1Q3/1q1BPB2/1Bb1B1b1/1brpB2k/3br1R1/1N2bB2/K3N3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 d5 b4 f5 c4 g5 Kc2 a5 Kb2 g4 e4 f4 h6 a4 e6 Kf6 h5 Kg5 e7 g3 e8N g2 e5 d3 e6 d2 c5 f3 c6 f2 b6 Rh7 b5 Nd7 b7 Ndf6 b8B Ne7 b6 Bd7 b7 Bc8 c7 Rf7 h7 Bg7 h8B Bh6 Na3 Nc6 Rh3 Na7 Rg3+ Kh4 Bb5 f1R Nc4 Bg5 h6 Re1 h7 a3+ Ka2 Rd7 Nb2 Re3 Qc2 d1B Qc5 Rg7 Qe7 Be2 Bd2 Qd6 Be1 Qb6 Bf2 Bd7 c8B Rg6 Nh3 g1B Bd6 Bc6 Bd7 Rc8 b8Q Rh6 Bd3 Bb5 Be4 Bbd3 Nf4 Rc4 Ba4 Rg6 Bb5 Rg8 Bg7 Rf8 h8B Rg8 Nc7 Ne8 Bge5 Rf8 Bhf6 Rg8 Na6 Nc7 Nc5 Rf8 Nd7 Rc8 Kb3 a2 Ng2+ Kh5 Ne1 Kh4 Rc1 a1B Ka2 Rc5 Rc3 Rc6 Ra3 Rc4 Na4 Bc3 Nb2 Bb4 Ka1 Nc6 Ra8 Na7 Qe8 d4 Qf8 Bh2 Qe7 Rc6 Rg4+ Kh3 Bc5 Bb1 Bg7 Ne8 Nf6 Nc7 Ng8 Bbd3 Bgf6 Bhf4 Rg3+ Kh4 Bcd6 Rc4 Bc5 Na6 Bc7 Bd6 Qd8 Be7 Bce5 Nc7 Qd7 Bd8 Bf8 Bde7 Qd8 Bec5 Bfd6 Rc3 Qd7 Rc4 Qe7
Q1QN2R1/1B1qB3/BRrp2Nb/1r1r4/1rn5/1BR5/2b2BP1/KBk2rnb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 b4 Ke6 c4 Kf5 Kc2 Ke4 Kb2 h5 c5 a5 g6 f5 e6 a4 c6 d6 b6 f4 c7 f3 b7 h4 e7 f2 e8R+ Be7 b5 d3 g7 d2 b6 Ke3 Qc2 h3 Nc3 h2 Nb5 Rh4 Ra3+ Kf4 e4 Be6 c8B Bd7 e5 Bf5 e6 Rg4 Nd4 Nh6 g8B Bf8 e7 Qd7 Nc6 Nf7 Nd8 Ne5 Nf3 Ra5 Nh4 Nbc6 b8Q Bh6 b7 Nf3 Qa8 Nce5 b8B Bg6 Bd3 Ke3 Bb7 Rd4 Rf1 h1B Ba7 Ng1 Qcc8 Rc5 Kb1 Rc6 Rc3 a3 Be6 Bf5 Rg8 a2+ Kb2 a1R Bda6+ Bd3 e8B Ra5 Bg6 Ke2 Be4 d1R Bg5 Rac5 Be7 Kd2 Re1 f1R Ng6 Bb1 B4f5 Ra4 Ba2 Nc4+ Ka1 Rca5 Re5 Rb4 Bf2 Rac5 Bc2 Kc1 Bcb3+ Bc2 Rf5 Ra5 Rb5 Rd5 Rb6 Rab5 Bb1
3NN3/4Rn2/n1Pb1B2/2n3q1/4B1nN/1RbNnp1k/KQR1rNb1/5QrN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb3 Kg4 e4+ Kh4 b6 a5 e6 f5 e7 g5 e8N d5 e5 a4+ Ka2 d3 b4 a3 e6 d2 c5 g4 b5 d4 b7 d3 e7 f4 h6 g3 c6 g2 h7 f3 b6 Ra4 Bb2 Nd7 b8Q Rg4 b7 Nh6 Bf6+ Rg5 Nh3 g1N Nf2 Qa5 Nc3 Qb4 Rb1 Nc5 Rb3 Rg8 h8N Nh3 Nf7 Qb5 Nd8 Nf4 h3 Qa5 Rh2 Nfe6 Nh1 Na6 Be2 Qd5 Qf1 Nf7 Nd1 Nec5 Qe5 Bd7 b8N Bf5 Nd7 Rh8 Ndf2 d1N Qb2 d2 Ne5 Ne3 Bd3 d1N Be4 Ng4 Ned3 Nde3 Nd1 Rg8 Rc2 Bd7 Bh8 Re5 Bf6+ Rgg5 Nhf2 Kg3 h4 Bc8 h5 Be6 Ka1 a2 h6 Kh4 Nh1 Bc8 Qg1 Kh3 h7 Rg6 h8N Re6 Nd6 Qg5 e8R Re5 Re6 Rg7 Ne8 Bd6 Re7 Bd7 Qd4 Be6 Kb2 a1B+ Ka2 Bc3 Ng6 Bc4 Nh4 Bb5 Nc1 Bf1 Nd3 Bg2 Qf1 Nd5 Bg6 Re2 Be4 Nde3 Qb4 Rg8 Qa3 Rg7 Qb2 Qf5 Nb4 Ngh6 Qe1 Bf1 Rb7 Rg1 Nd3 Bg2 Re7 Qg5 Qf1 Nhg4 Nd1f2+
1Rn1nQq1/1BN1P1Nr/1p1r1B2/1b6/R2B4/BN2N1bk/nr4NR/2n2nK1 b - - 0 1 illegal: No possible last move, all moves rejected
1R4BN/P6r/qBb3rb/N2N2R1/2Q1NQbn/3pKQ2/4nn2/bk2b1NN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 Kf6 c4 Ke5 f4+ Kd4 h4 g5 c6 d5 c5 b5 h6 e5 a5 b3 h7 e4 c7 g4 c6 b4 f6 b2 f7 g3 a6 b3 a7 g2 h5 Ba6 c8Q Nd7 h6 Bb5 c7 Bd6 f8Q Ndf6 f5 Bg3 Qf3 Ng4 f6 Qd6 f7 Bc6 Bc4 Ne7 Nc3 b1B Nd1 b2 Rh5 Be5 Nf2 Nf5 Nh1 Nh4 Rg5 e3+ Ke2 Ba2 Rb1 Kc3 Qa6 Kc2 c8N d4 Ne7 Rb8 Nd5 Nf2 Bd2 Qe6 Ba5 Rb6 Qd6 Bb3 f8N Bf6 Qdf4 d3+ Ke1 e2 Nd7 Be5 Nc5 Qc8 Qb5 Qa6 Nb7 Ba4 Qb4 Bd7 Qb5 Rg6 Bb6 Bg4 Na5 Bf6 Qb4 Bc6 Qc5 Rhg8 h8N R8g7 Nf7 Rh7 Nd6 Be5 Nh3 g1B Ne4 Bh2 Ng1 Bg7 Rd1 b1N Bb3+ Kb2 Qc4 Nc3 Kd2 e1B+ Ke3 Ne2 Ba2 Bgc3 Rb1+ Kc2 Rb4 Bg3 Bb3+ Kb1 Rb5 Ba1 Rb4 Rd7 h7 Bh2 h8N Rh7 Bd8 Bg3 Rb8 Bh2 Bb6 Bg3 Qc7 Bge5 Qcf7 Bg7 Q7f4 Bh6 Ba4 Bb7 Bd7 Ba8 Be6 Bc6 Bg8
BbN1b3/1Q4R1/2NR3n/2q2r2/NN2N1nR/QrBK3b/1p4NP/nrk1r3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 a4 Kd6 d4 c5 f4 b5 h6 g5 a5 e5 f6 g4 h7 e4 f5 e3 f7 b3 a6 b4 f6 b2 a7 b3 Kd3 g3 Nd2 g2 Qf3 e2 Nh3 g1N Nf4 e1R Ng2 Bd7 Ra6+ Nc6 Rb6 Nh3 Rg1 Rc8 a8N Be8 Be2 Bg7 f8Q+ Qe7 f7 Be5 Ra6 Nh6 Nb6 Na5 Na4+ Rc6 Rb6 Rg8 h8R Rg3 Qg7 Rg5 f8N Rf5 Ng6 Qa7 Ra6 Rb6 Ne7 Bg3 Bd1 b1B+ Bc2 Be5 Bb2 Bg3 Bc3 b2 Qe3 Nb3 Qh7 Na1 Ne4+ Kc7 Qg7 Rb3 d6+ Kd7 Nc8+ Ke6 d7+ Kd5 d8N Bb8 Nc6 c4+ Kd2 Nf2 Qb7 Ba2 Bd1 Nfg4 Bf3 Qc5 Rh7 Nf7 Rh4 Bb1 Qh6 Bd3 Qf8 Nfh6 Qfe7 Bf1 Qf8 Qb5 Qa3 Rb1 Ne1 Bh3 Ng2 Qb6 Nb4+ Ke6 Ned6 Qc5 Bc6 Kf6 d5+ Kg5 Ne4+ Kg6 Nf6 Kg5 d6 Re1 d7 Rb1 Ne3 Kf4 d8N Re1 Ne4 Kf3 Bh8 c3+ Kd3 c2+ Bc3 c1R Ng2 Rb1 Bd5 Qa5 Rd6 Qa7 Kc4 Ke2 Ndc6 Kd1 Kd3 Kc1 Ne3 Nf6 Rg7 Qc5 Ng2 Nfg4 Na5 Qc6 Qd7 Qc5 Ba8 Rf4 Nac6 Rf5 Qb7
1rb5/3r2Q1/3Rk1NK/2R2Rn1/n1rP1B1p/1BRQ1q1n/Nb2BR1b/1n3R2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Kg4 a5 Kh5 c5 g4 h3 b4 h2 d4 h6 f4 a4 f6 c4 d6 e4 g5 e3 g6 e2 f5 e1N g7 a3 b6 a2 b7 c3 f7 c2 b5 Qb6 f6 Be7 f8R Rh7 f7 Bf6 Bf4 c1B Nc3 Na6 b8R Ra7 Nh3 Be5 Be2 Rc7 Qd3 Nc5 Rf1 h1N Rf2 Qb7 b6 Ke6 d7 Nf3 d8R Bb2 Raf1 a1R Rd5 Ra8 Na2 Ne7 g8B Na4 Rc5 Qe4 b7 Ng5 Rd8 Nd5 f8Q+ Rhf7 Qg7 Ndc3 Rdd5 Qf3+ Kg6 h5 Kh6 Nb1 Rc3 Bd7 Rf8 h4 b8R Rc4 Rbb5 Rb8 Rc8 Bd6 Rcc5 Bc8 Rf5 Bc7 Rcd5 Be5 Rbc5 Bc7 Bc1 Bh2 Nf4+ Ke7 Ng6+ Ke6 Rg2 Nf2 Bf4 Nfh3 Rgf2 Qe3 Ne5 Qg3 Ng6 Qf3 Bc1 Rcb4 Rde5+ Kd6 Bf4 Rd7 Bb3 Rc4 Red5+ Ke6 Rd6+
1b5N/1n1nKBr1/qB2B1b1/2N1RRrR/rpN5/2P1b3/1BBQ3n/1krN4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 Kf6 Kf4 b5 a4 d5 h4 d4 a5 d3 a6 g6 c6 d2 a7 e6 h6 b3 c3 b4 h7 b2 c7 Nc6 h5 Nh6 Ra5 Bd6+ Re5 Ng8 h6 Na5 Na3 b1R Nc4 Nb7 Bb2 Rc1 Nh3 g5+ Kg4 Qe8 f4 Qc6 Nf2 Qa6 Rh5 Bd7 c8B Be8 Qc2 d1R Qd2 Bg6 Be2 Rh1 Bd1 Bb8 Bb3 Rh2 Nd1 Rg2+ Kh3 g4+ Kh4 g3 Kg4 Ke7 Kg5 Nf6 Bd7 Rc8 h8B Rg8 h7 Rg7 Be8 Nd7 f6+ Kf8 f7 Ke7 f8N Rg1 f5 g2 Rc5 e5 Ne6 e4 Bf7 e3 Re5 e2 Nc5+ Qe6 Kf4 Kf6 Ke4 Qb6 Kd5 e1N Be6 Nf3 Bf7 Qa6 Be6 Ke7 f6+ Kf8 f7 Ke7 f8R Nh2 Bf7+ Kf6 Qd3 Rh1 Qd2 g1B Be6+ Ke7 Rf6 Be3 Rff5 Rg1 Bf7+ Kd8 Be6 Kc7 Bf7 Rg5 Be6 Rf7 Bf6 Rg7 h8N Rg1 Bh4 Rg2 Bf2 Rg5 Na3 Kb6 Nc4+ Kb5 Bf7 Nd6 Ke6 Nb7+ Ke7 Qa3 Nb6 Qa6 Be6 Ka5 Nc4+ Kb5 Ne4+ Ka4 Bg1 Kb3 Nc5+ Ka2 Bf2 Bc7 Bg1 Rc8 a8B Bb8 Bf2 Kb1 Bg1 Nd6 Bc6 Rc7 Ba4 Ra7 Bb3 Nb7 Ne4 Bf4 Bb6 Be3 Nc5 Qb5 Rf1 Ra4 Rff5 Qa6 Bc2+
4kBn1/N1R2b2/r1b2r2/Qr1qP3/2R1Q3/1B3Q1N/3pb1Qb/K1nRQ1Qn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e6 a5 Kd2 d5 b4 g5 h4 f5 e4 f4 c4 f3 Kc2 a4 Kb2 d3 e7 g4 b6 f2 h6 d4 b5 g3 h5 d2 b7 d3 c5 g2 c6 Qd5 c7 Rh7 b6 Qc4 Nc3 Ra6 Qf3 Nd7 b8Q d1B b7 Rf7 Qa7 d2 b8Q Ne5 h7 Rf4 h6 Rf7 Rh4 Qe6 h8Q Ra5 h7 Bb3 Qg7 Kd7 Qba8 Rf6 Nb5 Bb7 Bc4 f1B Nh3 g1N c8R Ne2 Qgg2 Ng3 Qag1 a3+ Kb1 Qf5 Na7 a2+ Kb2 Nh1 Rc7+ Kd6 Qe8 Bc6 Qeh5 Ra6 e8Q Be2 Qeg6 Ra5 Q6g3 Bh6 Q3e1 Bf4 Rb1 a1R h8Q Re6 Qf6 Bh2 Qfg6 Rf6 Qhg5 R1a4 Bd5 Ba2 Ka1 Nd3 Ba3+ Rc5 Bb4 Ra6 Rd1 Nc1 Bc4 Qd7 Qd5+ Ke7 e5 Kd8 Rg4 Rca5 Bf8 Qd6 Qb1 Ke8 Qb4 Rc5 Qa5 Rb5 Rd4 Qe6 Qde4 Qf7 Bd3 Qd7 Bc2 Bf7 Rc4 Qd5 Bb3
bQk2nn1/2r1R1q1/3B2Rn/1bn1P2N/4N3/3BNpRr/1BK2br1/2B3RB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Ra6 Kd7 Qb3 h5 Kd1 f5 d4 c5 g4 c4 e4 c3 d6 h4 g6 f3 d5 h3 g5 f4 g7 f2 b6 h2 g6 Rh4 b7 Qc7 Nf3 Qc6 Nfd2 Ne7 g8N Rh8 g7 Rh4 Bd3 f1N Rg1 h1B Nc4 Nf5 Bd2 Rh3 Nf6+ Kd8 g8B Qc5 d7 Nh2 Nh5 Ne7 Rag6 a5 Qb4 Kc7 d8B+ Kd7 Bb6 Qc7 Bd4 a4 Qb5+ Kd8 b4 Nd7 b8R a3 Rb7 c2+ Kc1 a2 Nc3 a1N R6g3 Qb8 d6 Qc7 e5 Ra2 Bd5 Ng8 Qb6 Bg2 b5 Ng4 Ra7 Bh1 Qb8 N4h6 Ba8 Bb7 B2e3 Ba6 Bh1 f3 Ne4 Bb7 Kd2 Ba8 Kc3 Nb3 Bg5+ Ndf6 d7 Bc5 Bf4 Nh7 Ra6 Bd5 Rag6 Ba8 Bd2 Nf8 B2e3 Ke7 d8R Ba6 Re8+ Kd7 Bf4 Ra3 Ree6 c1R+ Kb2 Rc3 Bc1 Ra2+ Kb1 Rd2 Re8 Rcc2 Bdb2 Rg2 Ree6 Bf2 Ne3 Rc6 Re8 Nc5 Kc2 Qd6 Ree6 Rc8 Re8 Qf6 Re7+ Kd8 b6 Qg7 b7 Bb5 Qa7 Rc6 b8B Kc8 Bd6 Rc7 Qb8+
4n1b1/n3NQ2/1k2BPQ1/1n2b3/N2rrb2/r1q1N1pK/2BR3b/BB2BBR1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 f4 g5 Kf2 b5 Kg3 e5 c4 d5 h4 Kd7 a4 Kc7 h5 b4 c6 e4 a6 e3 h6 b3 h7 b2 a7 e2 c5 d4 f6 d3 f5 d2 f7 Bd7 a5 Nf6 a6 Be6 Qc2 d1N Bd2 Bc8 Nf3 Qd7 Nh2 Qd4 Ra2 Ne3 Be1 Bh6 f8Q Qc3 Rg1 Ne8 Qf7+ Bd7 Qe4 Nc2+ Kg2 g3 Ng4 Nd4 Ne3 Nb5 Kh3 Rg8 h8B g2 Qee6 Bg7 Qeg6 Be5 Bf6 Ned6 Bh8 Rd8 Bg7 Ne8 Bf6 Qc4 Nc3 b1R Rd2 Rb4 Na4 Qc3 Bh8 Re4 Bf6 Kc8 c7 Be6 Bh8 Bf4 Bd4 Bd5 f6 Nc6 Be5 Rb8 a8B Nca7 Bc6 Ra8 Bd4 Bb3 Bd5 Ba2 Bb3 Rd5 Bc2 g4+ Kh4 g3 Kh3 Rd7 Be5 Rdd4 Bb1 Nc6 a7 Kb7 c8N+ Ka6 Ne7 Kb7 Rh1 g1B Bc2 Bh2 Rg1 Rb8 a8B+ Ka7 Bb7 Ra8 Bc8 Bb3 Bf5 Ka6 Bd1 Nca7 c6 Ka5 c7 Ba2 Bf2 e1B c8B Bb3 Bc2 Bc4 Qfg7 Bg8 Bce6 Ka6 Q7f7 Kb7 Rd1 Bd2 Be1 Bc1 Bd6 Be5 Ba3 Ka6 Bb2 Kb7 Ba1 Bd2 Ng2 Bdf4 Ne3 Ka6 Nb2 Kb6 Rd2 Nc6 Bb1 Ra3 Bc2 Nca7 Na4+ Ka5 Ba2 Ka6 Bfe6 Kb7 Bab1 Kc7 Nc5 Kb6 Na4+
n1Q1N3/2Bb4/Qb2pRQ1/1B4rn/1Q4Qb/2RQb2n/1N1rqPK1/1k1rN3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 b4 Kf6 g4 h5 b6 c5 b5 a5 d6 a4 b7 a3 b6 e6 d7 c4 d5 Ke5 g5 Ke4 f6 a2 d6 c3 g6 c2 f7 h3 g7 h4 Qh5 h2 Bb5 h3 Kf1 Ra5 Bf4 c1B Nf3 Nh6 g8N Na6 b8Q Be7 f8Q Be3 b7 Nc7 Qfe8 Nf7 Ne1 Na8 Qa7 Bh4 b8Q Ng5 Qa6 Kd4 Nd2 Kc3 Qe2 Kb2 Rc1 a1B Qg6 Rh5 Qd1 Ra2 Nf6 Qb6 d8Q Bd7 Rg1 h1R Qdc8 h2 Qg4 Nh3 Rc3 Rg5 Ne8 Qc6 Bg3 Qe4 Nc4+ Kb1 Nb2 Qc2 Kg2 Bb6 Nbd3 Qe2 Qbb7 Bb2 Qbe4 Bc1 Qb4+ Ka1 Nb2 Bce3 Na4 Rc2 Nb2+ Kb1 Bd3 Bb5 d7 Ba4 d8Q Bb5 Qh6 Bd7 Bb5 Rd2 Bc7 Qc4 Kf3 Qf1 Rg3 Qe2+ Kg2 Rf1 Qg7 h1N Rf3 Ng3 Rf6 Nh5 Qg6+ Rf5 Qde7 Rh1 Qed6 Rf1 Nc2 Rg5 Qdd3 Rfd1 Ne1+
3RRN1k/K3QBn1/nBpr1Q2/3N1B2/1Br5/b3BBqr/Pbn3bN/r7 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 Kg7 Kc4 e5 Kb5 h5 f4 h4 g4 e4 d4 h3 f6+ Kh7 f5 e3 g6+ Kh6 d6 h2 g7 Kh7 g5 e2 d7 e1B d5 b3 f7 b6 d6 b2 f6 Na6 Bg2 Qe8 Qf3 Nc5 Nc3 Qe5 d8Q b1N d7 Ra4 Qe8 Ra6 d8B Bh3 Qf4 Bd6 f8B Nh6 f7 Nf5 Nf3 Na3+ Kc6 Bf2 Rd1 h1R Qd7 Rg1 Nh2 Nc2 Bf3 Rg4 Bd2 Bd4 g8B+ Kg6 Re1 Ng7 Rad1 Bg2 Bfe7 Rh3 f8N+ Kh5 Qf6 Qg3 Bh7 b5+ Kd5 b4 Bf5 b3 g6 b2 Qde6 Ne8 g7 b1R g8B Ng7 Kc4 Rc1 Kb5 Ra1 Re4 Rc6 Be3 Na6 Ka5 Ba3 Bb4 Be5 Qd7 Bd4 Re8 Re6 Rd3 c6 Qde7 Be5 Rd7 Rd6 Nd5 Bc3 Kb6 Bcb2 B3e4 Rf4 Ka7 Rfh4 Bdb6 Rf4 Ng6 Kh6 Bf7 Kh7 Bf3 Rc4 Nf8+ Kh8 Rdd8
1r1nB1Q1/2n1R2r/P4qnR/3N1QNN/NB3p2/bb6/k2Bn2N/1N1r1b1K b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Na3 Kd7 Kf2 g5 Kg2 f5 e4 c5 d4 b5 h4 c4 d6 Kc6 d7 b3 e6 b4 e5 Kd5 h6 b2 e7 b1B e8N b3 h5 c3 h7 g4 h6 b2 e6 g3 e7 f4 Bb5 c2 Bd2 c1N Qg4 Bb7 Nc7+ Kd6+ d5 Kc5 e8N Bc2 Nf6 b1R Nf3 Be7 d6 Qf8 d8B Qf7 d7 Ra5 Qf5+ Bd5 Kg1 Bd6 Be7 g2 d8N Bb3 Be8 Rb5 Rh2 Na6 Nb7+ Kb6 Rh1 Bdc4 Nc5 Bf1 Kh2 Rb4 Ncd5+ Ka5 Kg1 Nd3 Bf8 Rb2 Re1 Nc7 Rh3 Ne7 Nh2 Rc2 Nb1 Nc6 a4 Nd8 Re6 Be7 Rhe3 Qg7 Nh5 Ne5 Re4 Rc1 Rb6 Rg8 h8Q Rd1 h7 Qg5 Rf6 Rg7 Rh6 Ng6 Qg8 Qf6 h8N Rh7 Nf7 Bd6 Ng5 Be7 Ndc3 Rb8 Re5 Kb4 a5 Bd6 a6 Be7 N5a4 Bd6 Kf2 g1N Be7 Ne2 Re4+ Bc4 Nd5+ Kb3 Bf8 Ba3 Bfb4 Ka2 Re7 Nc1 Kg1 Ne2+ Kh1 Bb3 Bc5 Na8 Bd6 Nc7 B6b4
2nQ4/Qn3RK1/pbQr3N/2QbRBN1/Qq1b2r1/2Q3Pb/8/Bkr1R2n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 e6 f4 c6 f6 h3 g3 a6 f5 h4 b6 h2 f7 h3 b5 Qd7 f6 Qe7 b7 Rh7 b6 Bh6 f8R Qe8 f7 Ne7 Bb2 Bg5 Ne2 Bh6 Qa4 Rg7 Nbc3 Nd7 Re1 Nc5 Ba1 Bg5 Rg1 h1N d3 h2 Bh3 Bc1 Bf5 Bb2 Rg2 Qd8 b8Q+ Qc7 Rgg1 Nb7 Qa7 e5+ Ke4 Kc5 d6 Bd7 Nd4 Nc8 Rgf1 Rg5 Re8 Qb8 f8Q Rg4+ Rf4 Be6 d7+ Qd6 d8Q Bd5+ Ke3 e4 Re5 Rb8 Qc7 Qe7 Qc2 Kb4 Qh6 c5 Qhc6 Ka3 Rf2 Rg6 Kf4 e3 Ne4 Ka2 Ng5 c4 Qc3 e2 Qc5 Rd6 Q7c6 Ra8 Kg4 Be6 Kh5 Rb8 Kh6 Bd7+ Bg6 Bh3 Nf5 Ra8 d4 Rb8 Qd3 c3 d5 c2 Qdc3 c1R Rf3 Qf8+ Kh7 Kb1 Nh6+ Qf5 Kg7 Qe4 Rf7 Ra8 Q3a3 Bd4 Qaa4 Rb8 Bf5 Ra8 Rf1 e1B Rg1 Ba5 Re1 Nd8 b7 Bb6 b8Q Nb7 Bg4 Qf4 Qbc7 Qd2 Be6 Qb4 Bd7 Nf2 Qc3 h1B Q6c5 Bf3 Q7c6 Nh1 Be6 Rd8 d6 Bd5 d7 Rg8+ Kh7 Rg6 Bg4 Rd6 d8Q Qa3 Nf3 Qb4 Qh8 Ne7 Bd7 Rg8 Bf5+ Be4 Qf6 Rg4 Ng5 Nc8 Qh8 Nd8 Kg7 Nb7 Bd7 Bf3 Qd8 Bd5 Bf5+
3nNN1b/1Nq2rP1/1p4rN/1k6/n1b2Rn1/B2Q1bNB/4rrNQ/2RKR3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 e5 d4 h5 g4 c5 g6 h4 g5 b6 a5 h3 a6 h2 f6 c4 a7 b3 g7 b2 f5 e4 g6 c3 d6 Kc6 d5+ Kc5 d7 c2 d6 e3 f7 e2 f6 Rh4 Nh3 Bb7 Nd2 b1B Ne4+ Kb5 Qd2 Rh7 Ba3 c1N Ng3 Bd5 Nf4 Bba2 Bh3 Bf3 Ng2 Nb3 Rc1 Qc7 d8N Nc6 d7 Nc5 Nb7 Nh6 g8N Bc4 d8Q Bg7 f8N Ng4 f7 Bh8 Q8d3 Na4 Nh6 Nd8 Qa2 Rb8 a8N Rc8 Rg1 h1R g7 Rh2 Kd2 e1R Qac2 Re4 Rge1 Re2+ Kd1 Rb8 Ng6 Rc8 f8R Rb8 Rf4 Rc8 Ne3 Rhf2 Ng2 Rb8 Nf8 Rc8 Nhf5 Rh6 Qcd2 Rg6 Nh6 Qe7 Q2c2 Rc7 Qa2 Qe5 Qad2 Rf7 Nc7+ Kc6 Ne8 Qc7 Q2e3 Kb5 Qed4 Rf1 Qg1 Rff2 Qh2
1bQ3Bq/QP2br2/Rnrk1nN1/2pb4/3N1nR1/1rB2B1Q/B1KbB3/6B1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 e4 Ke7 b4 h5 d4 a5 Kd2 f5 g4 c5 b6 h4 e6 a4 d5 f4 d6+ Ke8 e7 Kd7 e8B+ Ke6 b7 f3 g6 a3 g5 h3 b5 c3+ Kc2 h2 d7 f2 g7 a2 e5 Nf6 g8B+ Ke7 g6 Rh4 g7 Rh3 e6 Ne4 b6 Na6 b8Q Rh4 b7 Nc7 Qa7 Nd5 Be3 Rh6 Nh3 Kd6 e7 Nf6 Be2 f1R Nd2 Nb6 Rg1 h1N B8h5 Ng3 e8Q Be7 Bhf3 Ngh5 Rg4 Nf4 Bg1 Rf2 Be6 Rf1 Qh5 Qh8 d8B Rg6 B6c4 Be6 g8B Bd5 Nb3 Rc8 Qd2 Rc6 Nd4 Rb1 Qf5 Rg7 Qc8 Rf7 Qd3 Rb3 Qdf5 Na8 Ba5 Nb6 Kc1 c2 Bc3 Bd8 Kd2 c1B+ Kc2 Be7 Qh7 Nd3 Nf4 Bd2 Ng6 Nf4 Rd1 a1B Qh3 Bb2 Ra1 Bbc1 Ra6 Bb2 Ba5 Ba1 Ne6 Be5 Nd4 Rb5 Ba2 Rb3 Qca8 Kd7 Qf8 Bb8 Bc3 Kd6 Qc8
R5nB/2b2RBQ/b3nQB1/3r3Q/1k2N1n1/QNq4q/2P2p2/nKQr1n1Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 e4 g5 b4 d5 h4 f5 h6 a5 h5 f4 b6 g4 e6 Kd6 h7 a4 e7 g3 e8Q f3 h6 a3 b7 g2 e5+ Kc7 b5 Kb6 e6 Kc5 b6 d3 e7 f2 Nf3 g1Q Qh5 a2 e8Q Bg7 Qd7 Qh2 Ng5 d4 Bb2 Qh3 Kc1 Qc7 Ne4+ Kb4 Nbd2 Qc3 Nb3 Na6 b8Q Nc7 b7 Ra5 Qa8 Rd5 b8Q+ Bb7 Qdf5 Ne6 Qg3 Be5 Qf6 Ba6 Qe3 Bh2 Rg1 Bc7 Rg7 Qh2 Rf7 Qh3 Rb1 a1N Qdf3 Ne7 Qh1 Rhd8 h8B Ng8 h7 R8d7 Bg7 Rd8 h8Q d2+ Kd1 R8d7 Q8h7 Rd8 Bd3 R8d7 Ke2 d1N Qc1 Ne3 Qa7 Nf1 Kd1 Re7 Nd6 Rd7 Bg6 d3 Ne4 d2 Qe3 Qd3 Be5 Qd4 Rb2 Qc3 Ra2 Bb7 Ra8 R7d6 Ke2 d1N Qa7 Nde3 Qaa3+ Kb5 Bd4 Ng4 Kd1 Bc8 Qe3 Bb7 Kc1 Ba6 Kb1 Rd7 Be5 Rd1+ Qec1 R7d5 Bh8 Kc4 Bf4 Kb5 Bh6 Kc4 B6g7 Kb5 Qa2 Kb4 Qa3+
2n3Q1/1Q4rQ/1r1b2q1/k1Nb2R1/PpB1Q1Q1/1qnnNn1n/3B4/Q2B1K1R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 b5 d4 h5 g4 c5 f6 Kc7 f7 Kb6 g6 e5 f5 e4 g5 c4 f6 c3 g7 b3 g6 h4 d6 b2 d5 b4 d7 h3 d6 h2 Nh3 e3 Be2 c2 Nc3 b1N Nd5+ Ka5 Ng5 Qc7 d8Q Be7 f8Q Nc6 d7 Rh3 f7 Nd4 Qde8 Nc3 d8Q Ra7 Bd2 c1Q Ne4 Rh6 Qdd7 Qb2 Kf1 Bd6 Qg4 Bb7 Qfe7 Qb6 f8Q Nf3 Nc5 Qb3 Qff7 Ba8 Rg1 h1N Qb7 Nf2 Qee4 Ne7 g8Q Nc8 Qfh7 Nh3 g7 Rf6 Qe1 Rg6 Bd1 e2+ Kg2 Qc6 Ne3 Ra6 Rh1 Rb6 Qg1 e1N+ Kf1 Nd3 Rc1 Nb5 Rc4 Nc3 Rd4 Ra6 Rd5 Rb6 Rg5 Qe8 Q8e6 Qc6 g8B Rg7 Q6e5 Qe8 Bc4 Qg6 Q1g2 Nb5 Qa1 Nc3 Qf7 Bd5 Qfg8 Bf7 Qb7 Be6 Qge4 Bd5 Qgg4
B4BnQ/q2b4/1rb5/bp2B2N/2N1Q1P1/1B1QB1Bn/1b1R1r1b/1qk1R2K b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 Kf2 h5 a4 b5 g4 c5 Kg2 e5 d4 e4 g6+ Kf6 g7 h4 d6 b3 d7 b2 a5 c4 d5 e3 d6 e2 a6 e1B a7 c3 Nd2 b1Q Ne2 c2 Nc4 Bb4 Qd4+ Kf7 f6 Ke6 f7 Qb6 d8Q Na6 d7 Nc5 Be3 c1B Ng3 Rh6 Ra2 Bb2 Nh5 Bd6 f8B Nd3 Qe4+ Bde5 Rg1 h3+ Kh1 h2 Bd6 Ba5 Bg2 Rf6 Re1 Rb8 a8B Qa7 Bf3 Rf5 Bd1 Rb6 Bb3 Rf7 Qc7 Rf6 d8B Bd7 Qcc6 Rf7 Bh4 Rf6 Bg3 Nf2+ Kg2 Rf7 Qd3 Nh3 Qce4 h1B+ Kh2 Bc1 Rd2 Bb2 Qh7 Bhc6 Qhe4 Rf8 f5+ Kf7 f6 Ke6 Qh7 Bf4 f7 Bfe5 Bd4 Kd5 Kh1 Bf4 Bb8 Bd6 Bde5+ Kc5+ Qhe4 Kb4 Bd4 Be5 Be3 Bc7 Bh4 Bg3 Be5 Bh2 Nd6+ Ka3 Bhg3 Re8 f8B Re6 Bb7 Rf6 Ba8 Rf2 Bc2+ Ka2 Bb3+ Ka1 Nc4 Qd1 Rc2 Kb1 Rd2+ Kc1 Rg1 Ne7 g8Q Qf1 Qg7 Ng8 Qh8 Qe1 Qd6 Qd1 Qed5 Kb1 Re1 Qc1 Bd1 Qc2 Qe4 Kc1 Qd3 Qb1 Bb3#
1Rq1B3/K2b1q1p/N2R3n/2Brqb1P/2nN2q1/3QB1B1/3rR1Bk/2N1Rq2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kb3 Kf7 Kb4 Kf6 Kc5 Kf5 h4 Kg4 d4 Kg3 e4 a5 b4 g5 h5 a4 e5 a3 f5 c6 e6 a2 b6 g4 f6 Ra6 b7 Ra7 d6 Nh6 f7 Qa5+ b5 Rf8 d7 Qe1 Kb6 c5 d8R c4 d5 c3 e7 c2 e8B Bd7 d6 Qe2 Rh2 Qc4 Nd2 Nc6 b8B Na5 Bg2 f1Q Nb3 f2 Be3 c1Q Qd3 Rh8 f8R Qf7 Nd4 Qc8 Re1 a1Q Rg8 Bf5 d7+ Rc7 Ba7 Rc5 Bb8+ Re5 Ka7 Qac3 b6 Nc4 Bd6 Qa1+ Ba3 Rd5 b7 Qc3 b8N Qb2 Nc2 Qe5 Rg6 Rg8 Na6 Rg7 Rb6 Rg6 Bac5 Rgd6 Qe2 Rd2 Qd3 Rd5 Rg6 Qe2 Rd6 f1B Nd4 Qd1 Bf3 Bh3 Rhe2 Qa4 Bg2 Kh2 Qc2 g3 Qd3 Qcc6 Rb8 Qc8 Rb7 Qa1 d8B Bd7 Rb8 Bhf5 Bh4 Qd1 Rf2 Qf3 Nge2 Qg4 Be4+ g2 Nc1 Na3 Rfe2 Nc4 Bhf2 g1Q Bg2 Qf1 Bg3+
7R/1pN4Q/4b1BP/2BNR3/2rQbB2/b1Q1BBn1/rkBb2nK/2q1qb2 b - - 0 1 illegal: No possible last move, all moves rejected
2br3q/Bn1NNRk1/1BB1b2R/b1R1N2n/K5N1/3n2P1/Np2B1nq/r1Q5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 c5 d4 e5 Kd2 b5 Kc2 h5 Kb3 h4 g3 h3 d6 e4 a5 e3 f6 h2 d7 e2 g6+ Ke6 d5+ Kf5 g7 Kg6 d6 e1N f7 Nf3 f5+ Kf6 a6 Qe7 d8N Qe2 a7 Ne1 d7 Nc6 Ra5 Ng2 Be3 Bd6 f8N Bc7 Nf7 Nd8 Nh3 Nb7 Qc2 Bd8 Nf2 c4+ Kb2 b3 Ka3 c3 Ne5 b2 Qc1 c2 Nc3 b1B Na2 b4+ Ka4 b3 Rc5 Qd2 Be2 b2 Bd4 Ba5 d8B+ Ne7 g8N+ Kg7 Nfd7 Ng6 Ne7 N6f4 Bb6 Nh5 Nfg4 Rd8 Bg1 Qh6 Bf2 Qh8 f6+ Kh7 f7 Kg7 Qe3 c1N f8R Bf5 Qc3 Nd3 Qc1 Be6 Rf6 Bc3 Rf1 h1Q Rh6 Qh2 Be3 Rb8 a8B Ba5 Rf4 Nd6 Bc6 Ra8 Rd5 Ra6 Ba7 Nb7 Beb6 Qh1 Rf1 Qh2 Rc5 Nf2 Nc3 Bb4+ Kb5 Ra1 Na2 Nd3 Ka4 Ba5 Rf7+
1KB3B1/1NR4r/B6B/qb1rnR1Q/4N1P1/N1Br1B2/p4q1n/bb1Qk2r b - - 0 1 illegal: No possible last move
knQrB1B1/3Qb3/4QqBK/N2bB1r1/qRPN1B2/R2pn1r1/1q6/4qB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 h5 e4 f5 b4 d5 g4 Kd7 c4 Kc7 e6 Kb7 e5 a5 b6 h4 e7 f4 e8B a4 e6 d3 b5 h3 e7 d4 g6 h2 g7 f3 g5 f2 g6 a3 Nf3 Nf6 g8B a2 g7 Nc6 Bg6 Rh4 e8B Be6 Bb2 Kb8 b7 Be7 Bc3 Ka7 b8B+ Kb7 b6 Rg4 Bb2 Rg3 Bf4 Bd5 Qa4 Nb8 Qd7+ Qc7 Bc3 Ra5 Bb2 Ka8 b7+ Ka7 Rg1 h1Q Rg2 Qb6 Rh2 Bf7 Rh5 Qb3 Rb5 Ng4 Rb4 Qa4 Bc3 Rg5 Bb2 Nc6 Bc3 Bd5 b8Q+ Ka6 Qbc7 Nb8 Bb2 Ne3 Qcc8+ Bb7 Bc3 Ka7 Bd6 Qh2 Bh3 Rf5 Qdc7 Qc6 B6f7 Qb6 Bh7 Ng2 g8Q f1Q Bfg6 Ka8 Qc6 Qb5 Qge6 Qa4 Bg8 Rd5 Bc7 Rd8 Qc6d7 Bd5 Bb2 Qhg1 Bc1 Qh1 Be5 Qhg1 Ne1 Qf6 Nf3 Qh2 Na3 Qg1 Nb5 Qh1 Na7 Qg1 Rab1 a1Q R1b2 Qf1 Ra2 Qb1 Nc6 Qa1 Ne1 Qb2+ Nc2 Qh1 Ra1 Qg1 Na5 Qe3+ Kd1 d2 Ra3 Qec3 Ke2 d1R Bg5 Ne3 Bgf4 Rdg1 Bf1 Rg5 Kf2 Bh1 Ke2 R1g2+ Kf3 d3 Nd4 Qe1 Qg4 Rf2+ Kg3 Bg2 Kh4 Bd5 Qge6 Rfg2+ Bg3 Rg4+ Kh5 Rg5+ Kh6 Rg1 Bgf4 R1g2 Nf3 R2g3 Nd4
2bNn1b1/Bq2nRr1/1BB1N1R1/rQb1B2K/rPb5/pQq1Q3/k7/B3B3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 b4+ Kd4 f4 a5 d6 c5 d7 e5 b6 h6 f6 h3 b7 a4 f5 c4 f7 e4 f6 e3 Bb2+ c3 Kh5 h2 g4 a3 g5 e2 g6 Kc4 d4 c2 g7 Kb3 d5 e1Q d6 Qe3 Bb5 Ra7 Nf3 Qc1 Nc3 Ra8 Ne4 Be7 f8Q Qb6 d8B Qf2 d7 Qce3 f7 Bc5 Bh4 Ra7 d8B Nd7 b8B Rh7 Qe7 Ra4 f8B Qg2 Ne5 Qc3 Rg1 h1B Ng5 Qb7 Nef7 Bd5 Ba7 Bc4 Qe3 Ne7 g8Q Rg7 Rb1 Ka2 Be1 c1R Bc6 Rc2 Bdb6 Rd2 Ba1 Rd5 Nd8 Nf6+ Kh4 h5 Nge6 Rf5 Rg6 Ne8 Qf7 Re5 Qf5 Rd5 Kg5 h4 Kh5 h3 Rb3 h2 Qfe5 Rg8 Bg7 h1B Qf5 Be4 Be5 Rg7 Rb1 Bc2 Rc1 B2b3 Rc2+ Qb2 Rf2 Qc2 Rf3 Qc3 Rf4 Bd6 Qfd3 Rda5 Rf7 Bc5 Qd5 Bd6 Qb5 Bc5 Rg1 Bc2 Rg3 Bh7 Rg6 Bg8 Qb3+
B1n1k3/qnr2Nr1/B5NR/2B1rqN1/Qp1nR3/RN2r1b1/2P2RR1/3b1K2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 h4 g5 f4 b5 a4 d5 c6 e5 c7 d4 h6 d3 h7 b3 a5 g4 f6 g3 h5 e4 f5 e3 h6 b4 a6 b2 a7 e2 Nd2 b1N Nb3 g2 Nf3 g1Q Ra3 Qg5 Rh2 Qe7 Rg2 Na6 Be3 Nd2 Qa1 Nc5 Bg1 Qg6 Ng5 Nb7 Bc5 Nf3+ Kf2 Rb8 a8B e1R Qa2 d2 Ba6 Re6 Kf1 Re3 Qa1 Nd4 f7+ Kd7 f6 d1R+ Kf2 Rdd3 Kf1 Rc3 Qa2 Bg7 f8N+ Ke8 Qa1 Qh5 Ng6 Bg4 c8N Bd1 f7+ Kd7 f8R Be5 Rf3 Bg3 Nd6 Re8 Rff2 Qg4 Ndf7 Qf5 Qa2 Re5 Qa1 Rc8 Qa2 Rc7 Qa1 Ke8 Qa2 Nf6 Qa1 Rf8 h8R Ne4 h7 Ned6 Rg8 Rce3 h8R Qed7 Rh6 Nc8 Rgh8 Rg8 Rh4 Qc6 R8h6 Qb6 Re4 Rg7 Qc3 Nd8 Qd3 Nb7 Qb5+ Rc6 Qa4 Qa7 Qa5 Rc7 Qa4+
n1r3k1/2rnQ3/r2b1RBQ/2n1nK1B/1p3NBR/1b4Nq/BP5B/1Q1q3B b - - 0 1 legal: proof: f4 a5 h4 d5 c4 g5 hxg5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 Kf2 h5 Kf3 b5 Ke4 c5 g4 f6 d4 c4 a4 f3 d6 b4 g6 f2 g5 c3 g7 c2 a5 h4 a6 h3 g6 h2 d7+ Ke7 d5 Qc7 d6+ Ke6 d8Q Qd7 Qdb6 Nc6 Nd2 Nce7 Bh3+ Nf5 Bg4 f1N Nh3 Ne3 Nf1 Qd8 d7+ Bd6 Ng3 Nd5 Bf4 Nc7 Raf1 c1R Qg1 Ke7 Qab6 Nfh6 a7 Nf7 Kf5 Ne5 e4 Bb7 Rf2 Bd5 Qa6 Rc8 a8B Bb3 Bd5 Rc3 Qb1 Na8 Rff1 R3c7 Rf2 Nf3 e5 Rh6 e6 Ne5 Bh5 Ba2 Bdf3 Bc4 Bfg4 Bb3 Rc1 h1N Rc4 Nf7 Rf1 Nf2 Be5 Nd3 Nf4 Nc5 Qc6 Rh8 Qh1 Rh7 Qh4 Ra7 Qg5 Ra6 Qh6 Qb6 Rf3 Qc6 Rf2 Qh1 Re4 Qh3 Rf1 Kd8 e7+ Kc7 Nd3 Qh4 Kf4 f5 e8B Kd8 Ree1 Ke7 d8Q+ Ke6 Nh1 Nf6 g8B Ba4 g7 Bd1 Re3 Qh2+ Rg3 Qg2 Rh3 Bc2 Rh4 Qh3 Rf3 Ba4 Ke3 Bd1 Bh2 Bc2 Bc6 Ba4 Bg6 Bc2 B4h5 f4+ Kd4 Bd1 Ng3 Bc2 Rf1 f3 Ke3 f2 Bh1 Nfd7 Kd4 Nf8 Qd7+ Kf6 Qc7 Ne5 Ba2 Bd1 g8B Bb3 Be6 Rd7 Qd8+ Re7 Qe8 Rec7 Beg4 Nfd7 Ke3 Na4 Kf4 Nac5 Qg5+ Kg7 Qee7+ Kg8 Qh6 Rcc6 Rc1 f1Q+ Kg5 Qg1 Rf1 Qd4 Rf6 R6c7 Nf4 Qd1 Kf5
NK1N1Q1q/1bNN1qr1/4r2R/NRq5/PB4nQ/p1k2bb1/1N2n3/B1q2B2 b - - 0 1 illegal: No possible last move
1BQR2bB/4R1q1/Nrq5/5pBk/nn1bP1N1/1Nqr1r1r/3B2B1/4KQB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 f5 h4 Kf7 d4 g5 e4 c5 d6 a5 d7 c4 h6 Kg6 d5 a4 b6 a3 b7 g4 h7 a2 d6 f3 b5 g3 b6 c3 Qd3 g2 Nh3 g1R Nf2 c2 Nd2 Ra3 Nb3 Ne7 Bd2 Qc7 d8Q Kh5 d7 Nd5 Rd1 c1Q Ng4 Na6 b8N a1Q b7 Nc5 Na6 Bg7 b8B Qac3 Qc4 Rg3 Bg2 Na4 Qf1 Bd4 Rg1 Rg8 h8B Rg6 Bg7 Bb7 Qc8 Nb4 d8B Rb6 Bg5 Rh3 Be5 Ba8 Bh2 Qg7 Rh1 Bd5 Bg1 Qc6 Rh2 Q1c3 Rh1 Kg6 Rh2 Bg8 h5+ Kh7 h6 Kg6 h7 Kh5 h8B f2+ Ke2 Kg6 Rh1 Rd3 Rh7 Rh3 Qe1 f1R Qf2 Rd3 Qf4 Rff3 Ke1 Rh3 Qf1 Rdf3 Bh6 Kh5 Bg5+ Qgh6 Rf7 Qg7 Re7 Qc1 Na5 Rad3 Nb3 Q1c3 Ke2 Bf6 Be1 Rd8 Rd6 Be5 Bed2 Rd7 Ke1 Bf6 Rde6 Rdd3 Rd6 Bd4 Rd8
8/7k/q2RRN1B/n1qpn2B/1Q2N1R1/b1NN1bnB/1rr1P3/KnR2Nq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 b4 d5 c4 f5 Kc2 Kf7 Kb2 g5 h4 Kg7 c5 g4 c6 f4 c7 d3 b6 f3 b7 f2 b5 g3 b6 a4 h6+ Kg6 h7 g2 e6 d2 h5+ Kh6 e7 Nf6 e8B Bh3 c8N Na6 b8N Ne4 b7 Qf6+ Nc3 Qd8 Nd7 Qg5 b8R Ng3 Qb3 d1Q Nd6 Qd3 Nf6 Qge3 Rb6 Bg4 Nf3 g1Q Rh4 Nb4 Nd2 Rc8 Bh3 f1N Nd6e4 Nc6 Qb4 Bf3 Rg4 Ne5 Re6 a3+ Ka2 Rg8 h8N Qc5 Ng6 Qa6 Nf4 Rc6 Kb1 a2+ Kb2 Rg7 Nd3 Rb7 Bg6 Kg7 h6+ Kh8 Rb1 a1N h7 Nb3 Bh5 Na5 Ka1 Rb5 Ng5 Kg7 h8R Rc8 Rh6 Rb7 Nc4 Nd2 Ne3 Bd6 Nf1 Rb6 Rb2 Nb1 Rc2 Rcc6 Bf4 Rb8 Rc1 Rcc8 Qe4 Rb2 Qb4 Rc7 Rg6+ Kh8 Nge4 Rc6 Ng8 Kh7 Bh6 Rd2 Nb5 Qcf2 Qc4 Nh1 Re8 Ba3 Rd6 Ng3 Ree6 Rb2 Qb4 Rcc2 Nbc3 Qc5 Ngf6+
2nB4/2b3Nq/2k1rN1B/2PQ2B1/4p1N1/1B1BR1Rb/3qrb1B/K1n2rrQ b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 d5 Kc2 Kd7 g4 e5 b4 h5 Kb2 d3 f4 d4 f6 h4 g6 e4 b6 h3 b7 h2 f7 a4 b5 d2 c5 d3 b6 Rh5 g7 Qf6+ Nc3 Qe5 g5 Ra6 g6 Qd4 f5 Qf6 Ra3 Ra5 Nf3 Ne7 g8Q Bg7 f8B Qd4 f6 Nbc6 b8B Ra6 f7 Ne5 b7 Kc6 Bc7 Bh3 b8B Nc8 Rg1 h1Q Ka1 Rh6 Qe1 d1R Nh2 d2 Ng4 Nd3 Rg3 Be5 g7 Re6 Bd8 Bc7 Bfe7 Rb6 f8N Rb2 Nd5 Qh2 Rc3 a3 Bg5 a2 Ndf6 Qd7 Be2 Qf7 Qg1 Rf1 Qh1 d1R Bh6 Qe7 Qf7 Rg1 g8B Rdf1 Qh5 Qh7 Qf5 Ne1 Bd3 Re2 Bcf4 Qf2 Bfg5 Qe3 Bf7 Qd2 Re3 Bb6 Bh2 Bc7 Bb1 Nd3 Qd5+ Kb5 Rg3 Nc1 Rce3 Rff2 Qc4+ Kc6 Bd3 Rff1 Bg8 Re7 Ne6 Re8 Ng7 Re5 Bc2 Re6 Kb2 a1B+ Kb1 Re7 Bd3 Bd4 Qa2 Re5 Bb3 Re8 Qb2 Re6 Ka1 Bde5 Qd4 Bed6 Rg2 Bg3 Qc4 Be1 Rgg3 Bf2 Qd5#
NB1Nrn2/2R1Qn2/K1br1N2/1Bp5/3Rq1NR/4r2P/1B1b1R1q/1R1k2qr b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Kf4 d4+ Ke4 f4 e5 b6 a5 Kb5 c5 d6 g5 b7 a4 f6 a3 f5 a2 f7 g3 d5 g4 d7 g2 d6 g3 f6 Rh5 Nc3+ Kf5 Nd5 Ke4 Nc7 Ra7 Rb1 a1R Nh3 g1Q Na8 g2 Qe1+ Kf3 Nf2 e4 Ng4 Qe7 d8R e3 d7 Bh6 f8N e2 f7 Qe4 Nh7 R1a6 Nhf6 Rd6 f8R Ra3 Qh4 e1R Qg5 Na6 b8R Bb7 Rbc8 Rae3 Rc7 Nb8 Qe5 Bf4 Qe7 Bc6+ Ka5 Qf2 b5 g1Q b6 Nh6 b7 Nf7 Bb5 Qe2 h3 Qeh2 Rh8 Re5 Rh4 Bg5 Rf8 Ree6 d8N Nd7 b8B Red1 Rfh8 Nf8 Ka6 Rf1 Rb4 Bf4 Rc4 Ke2 Rd4+ Ke1 R8h5 Re5 Rf5 Ree6 Qd7 Re8 Qe7 Bh6 Rf2 Bf4 Rc4 Kd1 Rd4+ Rd3 Ra2 Bd2 Rb2 Re3 Rb1 Qhg3 Rh2 Rfe1 Rg2 Q1h2 Re2 Rh1 Rf2 Qgg1 Bb2+
1NrB4/B1Q1n1k1/1R2K3/2p1nBB1/1q1R2br/1NQP1q2/bR1B2r1/b2bB3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 a5 Kc4 e5 g4 h5 b4 a4 f4 c6 d3 h3 g5 e4 g6+ Kf6 g7 h2 d6 h4 d7 e3 b6 e2 b5 e1R b7 h3 b6 a3 Qd2 a2 Nf3 Rh4 Nd4 Re6 Qc3 Re7 Bd2 Nh6 g8R Ra5 Rg6+ Kf7 f6 Rg5 f5 Na6 b8Q Rf4 b7 Ng4 Qc7 Bg7 b8B Re8 Ba7 Qe7 d8B Nb8 Rg1 h1B Rg2 Kf8 f7 h2 Re2 Re4 Bh3 Bf3 Be1 h1B Rb2 c5 Kd5 Ne5 Nc6 Qf6 Nd2 Bd1 Nb3 Rg2 Rab1 a1Q Rg4 Rc4 Rd4 Qa4 Bg4 Bh8 Bh3 Kg7 f8B+ Kg8 Bg7 Qb4 Bh6 Qf8 f6 Bcg4 f7+ Kh7 Bhd2 Kg7 Nca5 Nbc6 B2g5 Ne7+ Kd6 Rd2 Nc6 Bd5 Nb8 Rg2 Bgd2 Qg8 Bg5 Qh7 Bgd2 Qe4 Bg5 Qf3 f8B+ Kh7 Bfh6 Bf6 Bgd2 Bf7 Bhf4 Kg7 Bg5 Rh8 Rd5 Rf4 Rd4 Rh4 Na5 Ba2 Nb3 Rf5 Bge3 Rfh5 Bf4 Rh8 Bg5 Bh5 Bf5 Bg4 Ke6 Rf8 Qa5 Rfh8 Bc7 Rc8 Bd8 Nc4 Qb6 Ne5 Qc7 Qa4 Rc2 Be2 Qb4 Rh3 Rd6 Rh4 Rc4 Nd7 Rc6 Ba1 Rb2 Ne5 Qc3 Bd1 Rd4 Qb4 Rb6
1k4KN/nq3n2/r4RNP/3R2Rn/N2b1B2/1qRn3b/q1rp1B2/B1QBB3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 f4 Kc7 b4 g5 c4 e5 c5 a4 b6+ Kb7 h6 g4 f6 a3 h7 a2 b5 g3 f7 g2 f5 Qc7 h5 Qd8 h6 Na6 f6 Qd7 c6+ Kb8 b7 Ne7 c7+ Ka7 b8B+ Kb7 b6 Ra7 Be2 Nc6 Nf3 g1N Be3 Nh3 Nh4 Bg7 f8R Nd8 Rg1 Nf7 Ng6 Qe7 Rg5 e4+ Kd2 d3 Kc3 d4+ Kc4 d2 Kd5 d3 Bf2 e3 Nc3 Rg8 Qc1 d1Q h8N d2 Na4 Ra8 Ba7 Nb8 Be1 Nc6 Rb1 a1Q Rb5 Qc2 Bd1 e2 Ra5 Bf5 c8R Qac3 Rc5 Q2b2 Rcd8 Qcb3+ Rc4 Q2a2 Rd6 Nfd8 f7 Bd4 Rf6 Kc8 b7+ Kc7 Bc5 Ra6 b8B+ Kb7 Bc7 Na7 Bf4 Qc7 Re8 Kb8 f8B Bc8 Ree6 Nf7 Ree5 Bd7 Bg7 Rc8 Ke4 Qcb7+ Rd5+ Rc7 Rc3 Bc8 Re6 Bd7 Kf5 Bc8 Bge5 Bd7 Kf6 Bc8 Be3 Nf4 Kg7 Nh5+ Kg8 Bd7 Red6 Bh3 B3f4 Rcc6 Rf6+ Rc7 Beg3 e1N Bb6 Nd3 Be1 Bc5 Rc4 Be3 Ba1 Bd4 Rcc6 Be5 Bbf2 Bd4 Rcd6 Rc2 Rc6+ Ka8 Rc7 Kb8 Rc3+
3R1B2/r1Qr1bQB/1n5P/1K2b2p/nB1B3N/q2Rn3/qk2b1B1/1B1N1Q1b b - - 0 1 illegal: No proof kernel
7K/2R3B1/4bn1p/2RR1B1Q/1r3Pq1/1Q2NrN1/R1NbRqkr/n2rR2n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 c5 b4 a5 g4 e6 f4+ Kh6 d4 a4 f6 c4 g5+ Kg6 b6 h6 b7 h3 d6 h2 d7 a3 f7 a2 d5 c3 d6 c2 b5 Qa5 d8R Ra6 d7 Ne7 Bh3 Qa4 b6 Qb3 Re8 Ng8 d8R Ne7 Na3 Qg3 Ne2 Kh5 Kf6 Kh4 g6 e5 g7 e4 g8N e3 Bb2 c1R Nc2 Nf5 Ne7 Ra3 Nd5 Bb4 f8R Bd2 Rf7 Qg2 Rfe7 Ng3 Kg7 Nd7 b8R Rf8 Rg1 h1R b7 Rh2 Bf5 Nh1+ Kh7 Rf7+ Bg7 Nf6+ Kh8 Qg6 Ng3 e2 Ra8 e1Q b8Q Qf2 Ra5 Rd3 Qe2 Rd1 Rc5 Ra3 Ra7 Rb7 Re1 Rb5 Re3 Be6 Rac7 Rbb1 Qbb5 Qh5 Qa4 Rb4 Qf3 Rd3 R3e2 Rc3 Qe8 Qg4 Qe3 Kh3 Qh5+ Kg2 Qd3 Rh4 Qc4 Rf3 Nde3+ Kh2 Rdd5 Rh3 Rb1 a1N Rb2 Rh4 Qb3 Rh3 Nef1+ Kg2 Ra2 Rh2 Nfe3+
nRN4N/3bNbqk/1qn1QBp1/1b4rr/RbN5/2P1n1NB/QB1K4/4N3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 Kf7 b4 d5 h4 a5 f6 e5 f5 e4 h6 g6 b6 a4 b7 d3 h5 d4 b5 a3 c3 e3 b6 a2 h7 e2 h6 Be7 Qb3+ Be6 Na3 Qc7 Nc2 Bb4 Bh3 Kf8 f7 Be7 Bb2 Bd6 Kd2 e1N Ne2 Ne7 Ng3 Nbc6 b8Q+ Nc8 b7 Ra5 Qa7 Bb4 b8N Bd7 Qe6 Ng2 Rhb1 Ne3 Ne1 Nb6 Qa6 Na8 Qac4 Na7 Nc6 Qb6 Ne7 Nc6 Qa6 Rg8 h8B Re5 Bf6 Rh8 h7 Rb5 Bh4 Kg7 f8N Kh6 f6 Rg5 f7 Kg7 Rc1 Kh6 Rab1 a1Q Qac4 Qaa7 Ra1 Qac7 Rcb1 Qe5 Ra4 Qg7 Nc2 Rc5 Qa2 Rg5 Ke1 d2+ Ke2 d1B+ Kd2 d3 Ne1 Be8 Nd7 Bb3 Ne5 Bd7 f8N Bd5 Bf1 Bc4 Bh3 Bb5 Nc4 Nd5 Kc1 d2+ Kc2 d1B+ Kd2 Bc8 Nd7 Bb3 Ba3 Ne3 Bb2 Re8 h8N Kh7 Nh5 Rf8 Ng3 Rh5 Bg5 Rf5 Bf6 Rc5 Qd6 Rcg5 Qe6 Qa6 Ndb6 Bd7 Nbc8 Qa5 N4d6 Bd5 Nc4 Qb6 Qe4 Bg8 Qe6 Bf7 Nd5 Qc7 Qd6 Ba6 Qe6 Bc5 Ba3 Qa5 Rb5 Bb4 Rb8 Qb6 Nde7 Bb5 Bb2
1B2Bk1R/Q7/n2NPnBb/K2bq2B/R1B1q1Nr/B1R1q1rp/3q4/1Q5r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 g4 f5 b4 d5 c4 h5 e4 h4 g6 a4 e6 f4 g5 f3 c5 a3 g7 f2 e5 d3 Kc3 d2 b6 a2 e7 Nc6 b5 Rh7 b7 Ra5 b8Q Qd7 g6 Nf6 g8B Rg7 b6 Rh7 g7 Qg4 b7 Ra7 Ba3 Qf4 Nf3 Qe4 Bc4 f1Q Nh2 Rh8 Bh7 Rg8 Ng4 Ra4 Qa7 Qfe1 b8B Nb4 c6 Na6 c7 Bb7 c8R+ Kf7 Qc2 d1Q+ Nd2 Q1e3+ Qd3 Rb4 e8B+ Ke7 e6 h3 Rg1 Qde2 Bhg6 Qe1 Rc5 Ra4 Kb3 d4 Rf1 Qe5 Ne4 Q1d2 Nd6 Q5e4 Rad1 a1R Rf4 Qh2 Rd2 Rh1 Rh5 Qhe2 Rh7 Qe1 Rc2 Qa5 Qb6 Qae5 Rc3 Bd5 Qb1 d3 Qc5 d2 Bh5 Rh8 g8B+ Bg7 Qb6 Kf8 Qa7 Bh6 Bgf7 Rg8 Bfg6 d1Q+ Qc2 Qdd2 Qb1 Q4f3 Re4 Ra5 Rd4 Rb5+ Ka4 Rb4+ Ka5 Qfe4 Bd3 Rb2 Ra4 Rb4 Bf5 Rg5 Bfg6 Rc4 Nh2 Rd4 Bc4 Rg3 Ng4 Q4d3 Nh2 Rh4 Ng4 Qde4 Rh8+
N1b2r2/kNRnBRN1/3qP1Nr/qp3b1Q/2N5/1n3QN1/2r1BK1b/4Qb2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 h4 f5 a4 g5 e4 b5 h6 c5 a5 Kc7 h7 Kb7 d6 b3 d5 b2 a6+ Kb6 a7 c4 h5 g4 h6 g3 e6 c3 d7 g2 e5 f4 e7 c2 e8Q f3 d6 Nc6 Kf2 Nd4 Na3 b1B Bg5 c1Q Be2 Bg7 Be7 Qg5 Nc4+ Kb7 Qb3 Bg6 Rf1 Qc7 d8N+ Ka6 d7 Qc6 Ne6 Nf6 d8N Qd6 Nb7 Qd2 Rh2 Bf8 Ng7 Bgf5 e6 Qa2 Qh5 Qa5 Qa3 Rb8 a8N Nb3 Qa1 Nd7 Qe1 Ka7 Qf7 Bd3 Rh5 Bg6 Rc5 Bb1 Rc7 Bf5 Nh3 g1R Nf4 Rg4 Nfh5 Rd4 Ng3 Rd2 Ke3 f2 Qf6 Rg8 h8N Rc2 Ng6 Rh8 h7 Qdb4 Rg1 f1B Kf2 Qd6 Qfc3 Qaa3 Qf3 Qa5 N7h5 Bh6 Ng7 Bf4 Rg2 Rf8 h8Q Be5 Qhh5 Rh8 Nh1 Bh2 Rg4 Rh6 Rf4 B5h3 Rf7 Bf5 Nc5+ Bb7 Ng3 Rf8 Rc6 Bc8 Nb7 Kb8 Rc5 Ka7 Rc7
7K/2b1n1r1/3P1R2/1qbq1R1n/1B1q1NpR/q4bNN/R2k1rB1/NB3R1Q b - - 0 1 illegal: No possible last move
1Rr1b1r1/1R1N1n2/2Np2b1/2qQBk2/R7/1BP3Nq/K1R2qN1/Bn3Nbq b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 Kf6 b4 g5 f4 a5 c3 e5 Kc2 a4 Kb2 d3 b6 a3+ Ka2 d2 h6 e4 h5 d6 b7 g4 b5 g3 b6 g2 h7 e3 h6 e2 Rh2 e1Q Bc4 Ne7 Ne2 g1Q Ng3 Ng8 Bb2 Qef2 Bb3 Nc6 b8N Ra5 b7 Nd4 Nc6 Qc7 b8R Nf3 Rb7 Qgg2 Qh1 d1B Nd2 Ra8 Ndf1 Qh3 Rg2 Qfb6 Rc2 Nd2 Qd5 Bf3 Re1 Bh5 Re4 Qf7 Ra4 Nb1 Ba1 Bg7 Nb4 Ne7 Nc6 Rg8 h8N Ng6 h7 Ne5 Ng6 Qc5 h8B Bd7 Nh4 Rac8 Ng2 Bg6 Nh1 Qf3 Nhg3 Qff2 Qd3 Qe6 Qd5 Kf7 f6 Bh6 f5 Be3 Rb5 Be8 Bg7 Qd2 Bh8 Bg1 Rb6 Qdf2 Rb7+ Kf8 f7 Qd7 Nb4 Ke7 f8R Nf7 Bd4 Nh6 Be5 Nf7 Bf4 Kf6 Be5+ Kg5 f6 Qh3 Nc6 Rc7 Nd4 Nh8 Nc6 Qh1 Ne2 Bd7 Rfb8 Bde8 f7 Qb6 f8N Rc8 Raa8 Qbc5 Nd7 Kf5 Ra4 Nf7 Qd1 Qb5 Qd5 Qd3 Bb2 Qdh3 Ka1 a2 Ba3 Qhf3 Kb2 Qfh3 Neg3+ Kg5 Kc1 a1Q Bb2 Qa3 Na7 Q1h2 Nc6 Qac5 Ba1 Qh1 Kb2 Qff5 Raa7 Qff2 Ka2 Kg4 Ra4+ Kg5 Ne2 Kf5 Neg3+
r1n1b2q/q3R1Q1/2pBrb2/2R1Rq1B/5NQP/2RR2K1/2qnb1R1/2N1B1k1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 h6 f5 e5 a5 d6 g5 h7 f3 d7 g4 e6 a4 e7 a3 e8R f4 b6 a2 b5 c6 b7 Qg5 d8R+ Qd5 b6 Ra4 Re7 Na6 b8R Bg7 b7 Bd7 Rh2 Qf5 Be2 Qc2 Nh3 Bf6 Rg2 Nc5 Nc3 Nb3 Rde8 Ra8 Rb1 a1Q Na2 Qab2 d3 Qbc3 Bd2 Qa1 Bb4 Nd2 Nc1 Qac3 Re5 Ne7 Rb3 Nc8 R8e7 Re8 h8Q Q3b2 Qg7 g3+ Kg1 Qa1 Rc3 f2+ Kh1 f1B Bh5 f3 Nf4 f2 Qdg4 Be2 Rcc5 Ne4 Be1 Ke3 d4 Qac3 d5 f1Q+ Rg1 g2+ Kh2 Qd4 d6 Qdc3 Rf7 Re6 Re7 Be8 d7 Qd4 d8R Qa1 Bd2+ Kf2 Rd3 Qd4 Bb4 Nd2 Rdc3 Nb6 Rd8 Nc8 b8B Qd5 Na2 Qa1 Bd6 Qdd3 Nc1 Qf5 Bc7 Qa7 Rdd3 Qb8 Bd6 Qa7 Rh1 g1Q+ Kh3 Kf1 Rh2 Qd4 Kg3 Kg1 Rb3 Nf3 Be1 Nd2 Rf2 Qh7 Ra3 Qh8 Rh2 Qe4 Rac3 Qf5 Rg2+
2q2Q1n/BQQ5/P3Q1qr/1Q1Nq1b1/bn1rB3/1qNp3R/R1N5/2knKQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Qd6 Kf7 h4 e5 f4 g5 a4 b5 c4 b3 a5 b2 c6 e4 a6 g4 h6 g3 h7 b4 c5 b3 f6 Kg6 c7 Kf5 h5 g2 c6 e3 f7 Ke4 f5 e2 h6 Qe7 f6 Qe8 Be3 Be7 Qe6+ Kd3 Nc3 Kc2 Ra2 d5 Kf2 d4 Rh3 d3 Ba7 Bd7 c8Q Kc1 Qb7 b1Q Nf3 b2 Nd4 Bd8 Nc2 g1Q+ Ke1 Qg7 Bg2 Ne7 Kf2 Ng6 Bh1 Qgf8 c7 Nc6 c8Q Nb4 Qcc7 Ba4 Bg2 Qg7 f8N Be7 Nd7 Rd8 f7 Bf6 f8Q Be7 Nf6 Rd4 Qff7 Qc8 Nfd5 Bf6 Qed7 Bg5 Qdb5 e1Q+ Kf3 Qe7 Kf2 Qee6 Be4 Qge5 Ke1 Q6d6 Ra3 Qa2 Qf1 Qb3 Ra2 b1N Nd1 Re8 h8Q Re6 h7 Nc3 Qhf8 Rf6 h8Q Qc6 Qhh6 Nh8 Qhh7 Rh6 Qhe7 Qcf6 Qe6 Qg6 Nf6 Ncd5 Nc3 Ne3 Nfd5 Nd1 Qeb6 Qf7 Q6c6 Qg6 Qe6
q3R3/B1N4p/4Q3/kBR1B1qq/1b1Pn3/nrqr2NR/n3bRK1/2BR1N2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 c5 f4 Kc7 Kf2 Kb6 d4 e5 g5 a5 d6 c4 f6 c3 g6 c2 d7 h3 f7 a4 f5 h2 g7 e4 f6 e3+ Kg2 a3 Qe2 a2 Nd2 Nh6 g8R Ra7 Rg5 Ng4 Rc5 Ba6 Rb1 Be7 f8R a1N f7 Nc6 Re8 Nf2 f8R Ne4 Rf2 Qa8 d8N Bd6 Qe1 e2 Ne6 Rf7 Rb3 Rf3 Nc7 Rd3 Ra3 Rf8 Rb3 Rff3 Rbc3 Kb7 b6 Rh3 b5 Nb4 Rh5 Na2 Rcc5 Rhe3 Rh3 Rb3 Qd1 e1Q Ne2 Red3 Ng3 Qe3 Qg4 Qg5 Qe6 Bf8 Be2 Be7 Nf1 Bf8 Bd2 c1Q Be3 Qc3 Bc1 Nc2 Rg1 Na3 Rh1 Qad8 Rg1 Kb8 b7 Ka7 b8B+ Kb7 Ba7 Qa8 b6 Bd6 Rd5 Bb4 Rc5 Bb5 Ne3 Bc4 Rd1 Bb5 Nf1 Bc4 Nb5 Ka6 b7+ Ka5 b8B Rd2 Bg4 Be2 Be5 Rd3 Nc7+ Nb5 Rh5 Rf3 Qf7 Re3 Bd7 Rd3 Rc4 Na3 Bb5 Qb8 Qe6 Qb7 Rc5 Qa8 Kh3 h1Q+ Nh2 Qf3 Nf1 Qf7 Kg2 Qfg6 Rh2 Q6h5 Rh3
Nqb1BKnr/RB4P1/1n1BN1BR/R1b1r3/3rpRr1/8/2q3Q1/1bB2Nk1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 c4 e4 b4 a4 g4 d3 c5 d6 f6 Kg6 f5+ Kf7 c6 d2 c7 a3 b6 a2 g6+ Ke8 f7+ Kd7 b5 h3 f6 h2 b7 Bh6 f8B Be3 b6 Bc5 g7 Qe8 f7 Ra3 g5 Ra5 g6 Na6 b8R Rh4 b7 Rh3 Ne2 Rg3 Qc2 d1R+ Nd4 Rdd3 Ra8 Nb8 Qg2 Rg4 Nd2 Qd8 Ra7 Qe8 Rb1 a1Q Rb5 Qb1 Be7 Qc2 f8R Qd8 Rf4 Qf8 Be2 Qe8 Nf1 Rd2 Rg1 h1R Bd1 Rh8 Rh1 Rd3 Rh6 Qf8 Bh4 Rd2 Bg3 Ke7 Bh2 Nd7 b8N Nb6+ Kc6 d5 Nd7 Qe8 Ne6 d4 Bf3 d3 Bd1 Ra4 Rba5 Rd4 Be2 Rd1 Bg3 d2 Bb5 Rd5 Bh2 Re5 Bg3 Ba6 c8B Qd8 Bb7 Qb8 Ba8 Bc8 Bb7 Re1 Ba4 d1B Bb5 Re2 Ba4 Rd2 Bh2 Nf6 g8B Rd4 Bh7 Ng8 g7 Be2 Bb5 Bc4 Bg6 Ba2 Nf6 Bb1 Ne8 Rf5 N8c7 Kf6 Na8 Ke5 Nec7 Rb4 Ba4 Kd4 Ne6+ Kd3 Rf2 Rd4 Bd6 Re5 Rf4 Qc7+ Kb5 Qd8 Kc6 Qe8+ Kc7 Qb5 Kd8 Qbb2 Qg1 Ke2 Ke8 Qbb3 Kf8 Qg3 Rf7 Qf4 Qh1 Kf2 Qf3+ Kg1 Be8 Qg5 Qe2 Qd8 Rf4 Qc7 Qd2 Qb8 Qg2+
1B2r2k/3bnQpq/1R2RrPQ/q3n3/N3B1N1/Q1Q2Rb1/1b2Qrr1/1Q2K3 b - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 f5 exf5 d4 g5 d3 Qg4 hxg4 cxd3 Na6 d4 Nb8 d5 Rh3 Kd1 Rh7 Ke1 Rh8 b4 Kf7 h4 e5 d4 a5 f4 c5 f6 c4 d6 g3 g6+ Ke6 f7 Kf6 d5 c3 b6 e4 f5 e3 b7 e2 d7 g2 d6 a4 b5 c2 b6 a3 h5 a2 h6 Ra5 h7 Ne7 Bf4 c1B Nf3 g1R Nh2 Re5 Kf2 e1R Bd3 Rc5 Nc3 Qe8 d8Q Bd2 d7 Ree5 Re1 a1Q Qc7 Rg3 d8Q Nd7 b8Q Qa5 b7 Rc6 Na4 Bc1 Rhf1 Rg8 h8Q Rg2+ Kf3 Rb5 Qh6 Rbb2 Re5 Re6 Qc3 Rbd2 Qb6 Nc6 Qf2 Qb4 Ng4+ Ke7 Be4 Qa5 Ke3 Rh8 Qe1 Ba3 Rf3 Rdf2 Qe2 Bd6 Kd2 Bc7 Rd5 Be5 Rd6 Rg8 Be3 Bg3 Ba7 Nde5 Ke1 Qc7 Rd5 Rd6 Ra5 Bd7 Ra6 Qa5 f6+ Ke6 Qb4 Be7 f8Q Qf7 Qfc8 Re8 Qcc7 Qg8 f7 Qh7 Qcc8 Bg5 f8Q Bc1 Qff4 Ke7 Qf5 Nd4 Qcc3 Ndc6 Qb1 Bb2 Qff4 Re6 Qd6+ Kd8 Qa3 Rd6 b8R+ Ke7 Bf5 Kf8 Be4+ Kg8 Qf7+ Kh8 Rb4 Ne7 Bb8 Rf6 Re6 Bf4 Rb5 Bg3 Rbb6
2n2R2/nnNN1pNn/B6Q/b2B4/2NPr1R1/kq1RN2R/q1br1B1K/b7 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 Kd6 b4 a5 e4 g5 h4 c5 d4 a4 h6 f3+ Kh2 a3 e5+ Kd7 b6 c4 e6+ Kd6 b5 g4 e7 a2 e8B c3 b7 f2 h7 c2 b6 Bh6 h5 Qf6 Nh3 Qe7 Nf4 Bf5 Na3 Nc6 b8N Na7 b7 Qe6 Qd2 Ne7 Ba6 f1Q Rg1 Qb5 Nd7 Nec8 b8N Qb3 Ng2 Bf8 Rb1 a1B h6 Qa2 Ne3 g3+ Kh1 g2+ Kh2 Rg8 h8R Rg4 h7 Re4 Rb3 Be7 Rg8 Bd8 h8R Ba5 Rd3 Qb3 Rh1 g1N Rg4 Nh3 Rf8 Ng5 Nac4+ Kc7 Rh8 Nh7 d6+ Kd8 Rf8 Qd5 Ba3 c1N Bb4 Qa2 Bc3 Nb3 Bb4 Nc5 Bc3 Bb2 Qc1 Qb7 Be1 Ba1+ Bf2 Qb4 Nf6 Qb6 d7 Kc7 d8N Qbb3 Nh5 Nb7 Nd7 Rb8 Ne6+ Kc6 Nc7 Bg6 Ng7 Qd1 Rd2 Nd8 Ned5 Re2 Kg2 Rb2 Rh3 Qdb3 Kh2 Nb7 Rd1 Bb1 Rdd3 Re4 Qe3 Rd2 Qh6+ Re6 Nde3 Bc2 Nd6 Re4 Nc5+ Kb6 Ba4 B5c3 Be8 Ka5 Bc6 Kb4 Nd7 Ka3 Bd5 Ba5 Ndc4+
5B1R/1Rn1PkQ1/2b3N1/B1br1qRq/6N1/1r1q1R1n/N1Bp1N1K/2r1r2N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kg2 f5 c4 d5 h4 a5 e4 f4 b4 g4 b6 a4 b7 g3 e6 d3 b5 d2 e7 d4 e5 a3 h6 d3 h5 a2 c5 Qa5 c6 Bf5 b6 Qb5 h7 Nh6 c7 Ra7 c8N Be6 Nc3 Nd7 b8B Bf5 b7 Kf7 e8N Ra8 Qg4 d1R Nf6 d2 Qg7+ Ke6 Nh3 Qe2+ Nf2 Ng4 h6 Qd3 Rh3 Re1 Bc7 Bc5 b8R Rd8 h8R Nb6 h7 Ra3 Ne7 Rd5 Rb7 Na8 Ba5 Rb3 Ba3 f3+ Kh1 Be4 Nf5 g2+ Kg1 Bb6 Bf8 Bc5 Ng3 Nc7 Nh1 Rc1 Rb1 a1Q Na2 Qad4 Rb2 Qa4 Rh5 Qe8 Rg5 Qh5 Rc2 Rd8 Rc4 Bc6 Rf4 Rd5 Rff5 Nh6 Ng4 Nf7 Rg8 Re1 h8N Rc1 Ng6 Re1 Nh4 Rc1 Kh2 g1R Be2 Rge1 Rf4 Qf5 Bd1 Qd3 Bc2 Qf5 Nd1 f2 Rf3 f1Q Rh8 Q1d3 Ndf2 Qhh7 Rh5 Ng5 Ng6 Nh3 Rg5 Qh5 Qh6 Kf7 e6+ Ke8 e7 Kf7 Qg7+
2q2r1q/1BrBP3/b1B2bQ1/r2Q4/qQ3K1R/2B2nB1/k1p2Rr1/N2B1N1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Ke7 Ke3 Ke6 b4 Kd5 d4 c5 g4 f5 g6 h5 g5 a5 b6 h4 e6 c3 b5 Kc4 g7 a4 d5 c2 g6 Kb3 e7 c4 e8B a3 d6 h3 b7 c3 b6 a2 d7 h2 Nd2+ Ka4 Ngf3 Be7 Bh3 Nc6 b8Q Rh7 b7 Na5 Nd4 Nc4+ Kf4 Na5 e4 Nc6 e5 Ra5 e6 Bf6 e7 Ne5 Qg1 Nf3 Nf1 Nh6 g8B Ng4 g7 Nf2 Bb2 c1R Qg6 Rh8 Bh7 Rg8 Nc2 Kb3 Qd6 Qc7 b8B Ba6 d8Q Qc8 Bc6 Rf8 Rb1 a1Q Qb4+ Ka2 g8B+ Rf7 Rg1 h1Q Bg4 Qh4 Rg2 Nh1 Rf2 Qh5 Nh2 Rg1 Nf1 Rg2 Rd1 Qh3 Rd4 Qh4 Rc4 Rf8 Qd5 Qd1 Na1 Qa4 Bf7 c2 Bhg8 Qh8 Bc3 Rd8 Bd6 Rd7 Be8 Ra7 Bed7 Rc7 Ke3 f4+ Ke4 Nh2 Bd1 f3 Kf5 Rc5 Bg3 Ra5 Rd2 f2 Kf4 Nf3 Bb7 Qf8 Bdc6 Qc8 Be6 Rb5 Bed7 Ra5 Ne3 f1R Rf2 Re1 Nf1 Re5 Qge4 Rg5 Qef5 Rg8 Qg6 Rd8 Kf5 Rf8 Rh4+ Qb3 Kf4 Qc4+ Qd4 Qb5 Qe5 Qa4 Qd5+
B2bbRQq/2B1PQ2/QBR1b3/1K1kr2b/2r2qB1/rN3B2/p1B3N1/2n3n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 a5 g4 h5 e4 f5 b4 d6 b6 d5+ Kb5 f4 c4 h4 c5 d3 b7 h3 c6 a4 c7 d2 g6 a3 g7 a2 g5 f3 g6 h2 Qb3 d1Q Be2 f2 Bf3 f1R Be3 Ra6 Bb6 Qe1 Ne2 Qd1 Nd2 Qd6 Rc1 Nh6 g8B+ Nf7 g7 Qd8 Bh7 Re1 g8Q Nd7 b8Q Be7 Qa8 Ra3 Rf1 h1B Qa6 Nc5 Bg6 Nd3 Rc6+ Qd6 Qc4 Rh7 Nb3 Bd8 Rf2 Bd7 c8B Rh4 Rf1 Qa1 Nf4+ Ke7 e6 d4 e5 Be8 Rf2 Nc1 Bc2 d3 Ng2 d2 Bb7 d1B Ba8 Be2 Bg4 Ng5 Rf8 Bd1 Qf4 Nh3 Bf3 Bc7 Qf5 Rc4 Qff7+ Kd8 e7+ Kd7 Qa4 Ng1 e6+ Kc8 Bg4 Qf4 Qa6+ Kb8 Bf3 Qh8 Bg4 Bd8 Bf3 Bd7 e8B Ree4 e7 Be6 Bd7 Re5+ Bc5 Bd5 Bdg4 Be6 Rd6 Kc7 Rb6 Ree4 Rc6+ Kd7 Bb6 Re2 Rc7+ Kd6 Rc5 Ree4 Rc6+ Kd5 Be2 Qf5 Rc8+ Rc6 Bc5 Qhe5 Nh4 Nd3 Bh5 Re3 Rc7 Be4 Ng2 Qh2 Rc8 Ke5 Ba7 Rc7 Kb6 Nc1 b5 Bc6 Kc5 Qhf4 b6 Qh7 b7 Re4 b8B Qh8 Bb6 Re3 Bc4 Re1 Bd5 Be8+ Bdc6 Re4 Kb5 Rc4 Bg4 Kd6 Bh3 Bh5 Bg4 Ke5 B8a7 Rd7 Bcf3 Kd6 Ba5+ Ke5 Rc6 Rd5+ Nc5 Kd4 Bc7 Rg5 Bab6 Re5 Be2 Kd5 Nb3 Rg5 Bed1 Re5 Bdf3+
k4q2/3bP1RK/2nN1pRR/b2rR2b/1Q3q2/3rB2n/1N3Qb1/1BNRR2r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 g4 Kb7 b4 h5 d4 a5 g6 h4 d6 f3 g7 a4 b6 a3 d7 h3 Kf5 c4 e4 h2 b5 c3 e5 a2 g5 f2 e6 f6 Kg6 c2 d5 Ra5 d6 Ra3 e7 Ra8 Qe2 Rh5 Nd2 Ra6 Nc4 Qc7 d8N+ Ka8 d7 Qc5 b7+ Ka7 Nf7 Rh4 d8R Ra5 Rd1 Nh6 g8R Rd4 Kh7 Nc6 b8R Ng4 g6 Bd7 g7 Rd3 Be3 c1Q Nb2 Qb6 Rb7+ Ka8 Nd6 Qd8 b6 Rad5 Re1 Qd2 Rad1 a1R Bg2 f1B Be4 Qb8 Qf2 Bg2 Ne2 Qb4 Bf5 Qf4 Nc1 Rb1 Rh8 Qc8 g8R Bh6 Rg7 Qf8 Rhg1 h1B Be4 Bf3 Rc7 Bhg2 Rc8+ Nb8 Rc5 Nc6 b7+ Ka7 Qf1 Nf2 Bf5 Nh3 Qf2 Bh5 b8Q+ Ka6 Qb3 Ka7 Qb4 Ka8 Be4 Ra3 Bc2 Rad3 Rg6 Ra1 Bb1 Ra6 Rg7 Bf1 Qc3 Bf3 Re2 Ra7 Rdd2 Rc7 Nb3 R5d4 R1g3 Qh4 Bf4 Na5 Rce5 Rd5 Kg6 B1g2 Qcc5 Bg5 Rh6 Bh5+ Kh7 Rc8 Qb5 Rc1 Rg4 Rh1 Re1 Nc6 Rdd1 Qg3 Nc1 Qh2 Bd2 Be3 Qb3 Bb6 Qb4 Qf4 R4g6 Ba5 Be3
7K/2P1n1B1/BR1q4/kr1nb3/1r3p1R/BQN1rQn1/3Rn1bB/3BqB1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 g5 Kf3 f5 c4 d5 h4 Kd7 b4 Kc7 e4 Kb6 h6 a5 c5+ Ka7 h5 a4 h7 g4+ Kf4 g3 b6+ Kb7 h6 g2 e6 d3 Ke5 Ka6 c6 d4 e7 a3 e8B a2 b7 Kb5 c7+ Qd7 Ne2 g1N Ba3 d2 Rh4 d3 Bh5 Bc5 Nbc3+ Kb6 b5 Be3 Ng3 Nf6 Qf3 d1Q Nh1 Qe1 Rd1 a1R Rd2 Ka5 b6 Ne2 Bg4 Rf8 h8B Rb1 h7 Nh5 Bg7 Rb4 h8B Nhg3 Bh5 Rd8 Kf6 Bf4 e5 Qd6+ e6 Nc6 b8Q Ne7 b7 Re8 Kf7 Bd7 Be5 Bc6 Kg7 Bd5 Kh7 Ra6 Bhg7 Rab6 Bg4 R6b5 Bh5 Ng8 e7 Be4 Kh8 Bd5 Bd4 Be5 Bg1 f4 Bh2 Be4 Qc8 Bc6 b8R Be4 Rb6 Ba8 Rc2 d2 Qcb7 d1N Rd2 Ne3 Qbd5 Bc6 Qb3 Nd5 Bg4 Rf8 e8B Nge7+ Kh7 Rf6 Kh8 Re6 Bf7 Bd4 Bfh5 Re3 Bc8 Be5 Bb7 Bd7 Ba6 Bh3 Bg6 Bg2 Bc2 Qa1 Bd1 Qb1 Bc2 Qe1 Bd1
r3BBQ1/1Rprq1q1/5B1q/3bQNbN/2n1RB1B/N1P1n3/7b/BKbk4 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Kd2 Ke7 h4 g5 f4 d5 b4 a5 e6 Kd6 b6 d4 h5 Kd5 b7 Ke4 b5 g3 b6 g2 f6 d3 f5 g4 h6 g3 f7 a4 e7 a3 e8N a2 h7 Kf4 f6 Bg4 Rh4 Qc8 Ne2+ Kf3 Nf4+ Kf2 Na3 g1B Nd6 g2 Nh5 Be6 Rb1 a1B Re4 Nc6 b8B Qa6 b7 Bh2 Nf5 Be7 f8B g1Q f7 Bd5 Bg7 Nh6 f8B Na5 Bf6 Ng4 Ba7+ Ne3 b8Q Qg7 Rb7 Bb2 Qe1+ Kf3 Bh4 Bg5 Bd4 Qah6 Bf6 Rg8 h8B Qe7 Bf8g7 Rd8 Bf8 Rd7 Bh3 Bbe5 Qe8 Bef4 Ba1 Qeg7 c3 Qe7 Bf6 Qhg7 Bcb2 Nac4+ Kc1 d2+ Kb1 d1Q+ Bc1 Qd2 Qg3+ Ke2 Qc8 Bd6 Qe5 Kd1 Bf1 Na5 Bb5 Nac4 Qe8 Bhf4 Qf7 Qh2 Qg8 Qh1 Bd2 Bh2 Nc2 Ba3 Bc6 Bc1 Na3 Ng4 Bf4 Nge3 Bb5 Qf3 Nhg3 Qh5 Bc6 Qhh6 Nh5 Rd6 Be8 Rdd8 Bf7 Rd7 Be8
N2Nnq1r/NP3R2/4R1Bb/n4r2/K1nq2Q1/3NB3/2r1p1Bk/nQ2Nb1N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 Kd2 a5 Kc2 c5 Kb3 c4+ Ka4 e4 b6 e3 b5 c3 g5 h3 g6 c2 b7 h2 f6 h4 f7 h3 b6 Na6 b8Q+ Nc7 g7 Be7 f8N Bg5 f5 Bh4 f6 Rh5 f7 Ra7 Bg2 Qf6 Nf3 Rb7 Ne6 Rf5 f8N Ne7 g8B Ng6 Nf4 Bg5 Nbd2 Ne5 Nd3 Nc4 Bh7 Bh6 Nd7 Qf8 Rf1 h1Q Nfe1 h2 Bg6 Qg1 Qg4 h1R Ra3 e2 Ne4+ Ke7 d6+ Ke6 Rf3 Ne8 Nef2 Rc7 Be3 c1N Rc3 Rh5 Nh1 Nb3 Rf1 Qf2 Qb7 Qf4 Qe4+ Qe5 b7 Rh4 Nb6 Kf6 d5 Qd4 Kb5 a4 d7 a3 d8N a2 Ka4 a1N d6 Nba5 Na8 Be6 d7 Rh2 Nb4 Rc6 Qb1 Ke5 Na2 Rh4 Nc1 Bd5 Rb3 Rc8 Rb6 Bf3 Bh3 Bg2 Rf3 Bf1 Bg2 Bf4 Rf6 Rh8 Ncd3+ Ke4 Nc6 Rc7 Qg3 Bh6 d8N Na3+ Ncb4 Rc2 Bf7 N3c4 Nbc6 Rf4 Re6+ Kf5 Qh3+ Kg5 Qf5+ Kh4 Rf2 Rf3 Bg6 Rf4 Na7 Rf3 Qe4+ Rf4 Bf3 Kh3 Bg2+ Kh2 Qf5 Rf3 Qg4 Rf7 Rf5 Rf6 Rd5 Rf3 Rd7 Rf5 Rf7
2N3qR/1P2Nk2/1rNnRQbb/BN6/1b4K1/1R1q1B2/1Qrp2N1/n2b1N1r b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 a5 Kf3 e5 c4 d5 b4 g5 h4 d3 f6 d4 h6 a4 f7+ Ke7 c5 d2 h7 d3 c6 a3 h5 a2 h6 Qd6 c7 Bd7 c8N+ Kf6 b6 Ke6 b7 e4+ Kg4 e3 f4 e2 f5+ Kf6 b5 e1B b6 Qh2 Nf3 Qf2 Qb3 d1B Qb2+ Bc3 Nd2 Ra6 Rh3 B7a4 Be2 Be8 Nd4 Ne7 Nf1 Qe3 Bd2 Nd7 b8N Nc5 b7 Bb4 Nbc6 Nb3 Bf3 Rb6 Rc1 Rg8 h8N a1R h7 Bh6 f8N Bg6 Nfe6 Qe2 Bc3 d2 Nf4 Qd3 Ng2 Ra2 Rg3 Na1 Rc2 Kg7 f6+ Kf8 f7 Nf5 Nb5 Nd6 Bf6 Rg7 Bd8 Rg8 Rc5 Rg7 Re5 Rg8 Qd4 Rc2 Qb2 Kg7 Re6+ Kf8 Kh3 g4+ Kh4 Rg7 Rh3 g3 Kg4 Ra6 Ba5 Rb6 Ne1 g2 Rg3 g1Q Ng2 Bg5 Rh3 Be4 Rg3 Rg6 Rh3 Rh6 Rg3 Rh1 Rh3 Bf6 Ng6+ Kg7 Nge7 Bg6 h8R Bd4 Re5 Be3 Rg3 Bh6 Rh3 Kf6 f8Q+ Bf7 Qd8 Bg6 Re6+ Kf7 Be2 Qd5 Rb3 Qd3 Bf3 Qgd4+ Re4 Qg7 Re5 Qg8 Re6 Ne8 Qdd4 Nd6 Qf6+
2R4b/1P2k1r1/N1rb4/K2R1Q2/bR3N1N/2RNNB1p/r4qnn/1B1qB2r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 g4 a5 d4 c5 Kd2 a4 Kc3 h3 b6 h4 d6 e4 b5 c4 Kb4 a3 f6 h2 d5 c3 b7 e3 f5 a2 f7+ Kd7 g5 c2 f6 h3 b6 e2 g6 e1B+ Nc3 Na6+ Ka5 Nh6 g7 Qe8 b8N+ Kd8 g8B Qc6 d7 Ra7 b7 Nb4+ Na6 Ng4 Qd3 Rh5 Bd2 c1Q Be2 Bc5 f8N Qb1 f7 Rh8 Ng6 Qd1 f8N Nh6 Rc1 Rh7 Bf3 Nf7 Nf4 Bd6 Nge2 Nh6 Qf5 Rg7 N8g6 Ng4 Bh7 Nc2 Nd3 Nce3 Nh4 Ng2 Nef4 Ke7 d8R Bd7 Rc8 Bg3 Rf1 h1R Be1 Nh2 Rb1 Bf2 Rb4 Bd4 Rf2 Qc4 Rc2 Ba4 Rc1 a1R Rc2 Qc1 Nd1 Qa2 Ne3 Qd1 R2c3 Ra8 R8c5 Re8 Rc8 Qf2 Bg6 Rf8 Bh7 Rf6 Bg6 B6c5 Bh7 Ra2 d6+ Kf7 d7 Ke7 d8R Rc6 Rd5 Bd6 Bg6 Rc2 Nc1 Rf7 Qh5 Ra2 Bb1 Bh8 Qf5 Rg7 Ncd3
1NNRrRB1/Pk4K1/2NN2bQ/1b1N4/2QB2n1/3r2n1/qq1b1n1p/N3bR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 b5 Ke4 h5 Ke5 c5 a4 Kc7 d4 e6 f4 b3 g4 b2 g6 b4 a5 b3 f6 h4 a6 h3 g5 c4 f7 c3 f5 c2 d6+ Kc6 a7 h2 f6 Nh6 d7 Qe8 d8N+ Kc7 g7 Bb4 f8R Ng8 f7 Rh6 d5 Bd2 g6 Bg5 d6+ Kb6 d7 Kc7 Nb7 Bd2 d8N Ne7 Kf6 e5 g8N e4 Nd6 e3 Na3 b1B Qh5 e2 Bb2 e1B Bd4 c1Q Bc4 b2 Nc6 Nf5 Nc2 Bd7 Ne2 Ng3 Nc3 Qe2 Rf1 Rh8 Qg5 Rh3 g7 Be8 Kg6 Nd7 Nge7 Nf6 g8Q Ng4 Kg7 Bd7 Ra3 Re8 Na1 Bg6 Nec8 b1N Qh6 Qb2 Be6 Qc4 Rb3 Qa4 Rb8 Qaa2 Bb3 Bdf5 Be6 Bd3 Bb3 Bb5 Nd5+ Kd7 Bc4 Nc3 Ndb4 Kc7 N8e7 Qa6 Rd8 Bf5 Nec8 Nge2 Be6 Qaa2 Bc4 Re5 Rfe8 Bg6 f8N Nd1 Nd7 Ndf2 Rf8 Rd3 Ndb8 Ng3 Qd5 Ree3 Qc5 Re8 Bg8 Qa6 Qc4 Qaa2 Ne4 Kb7 Nd5 Bf7 Qc5 Bh5 Qc4 Bg6 Ned6+
B2b1R2/q1B2Q1n/1r4RB/n2B4/2k1nnB1/r2RQPNB/2b2N1p/2K1nn2 b - - 0 1 illegal: No possible last move, all moves rejected
1N2rB2/1kR1nr1B/6Nn/Q2pRb1r/2R5/1r3r1R/3bKPB1/R1r2RQq b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 d5 h4 Kd7 c4 Kc7 b6+ Kc6 c5 g5 b5+ Kb7 h6 a5 h5 e5 h7 e4 h6 g4 f6 d3 f7 a4 Bg2 g3 Nc3 e3 Ne4 d2+ Ke2 a3 Nf3 a2 Ne5 Nf6 Rf1 Nc6 Ng6 Rg8 h8Q Bd7 h7 Rc8 Ba3 Bg7 f8R Rb8 Rf7 Ng4 Nf6 Ne7 c6+ Kc8 c7 Kb7 Bc5 Bf5 Nd7 Bh6 Qc3 Rg7 Qa5 Qh8 Qb1 Rf8 Nb8 d1R Bd6 Rd3 Ba3 Qg8 h8R Rb3 Rh7 Bf4 Rh3 Qh7 Bc5 Re8 Qbe1 Nh6 Bd6 Nc6 Bf8 Bg5 Re7 Rf7 Re5 Bf4 Qab4 Ne7 c8B+ Ka8 Bd7 Kb7 Qa5 Qh8 Rfh1 Qh7 Qg1 Qh8 Rf1 a1R Be6 Raa3 Ra1 Rh7 Bg8 Rf7 Bh7 Bg5 Rh4 Bf4 R1h3 Bg5 Rc4 Bf4 Kf3 e2+ Re3 Qb2 Nd7 e1R Bf1 Qb1 Qh2 g2 Rg3 g1R Bg2 Rc3 Rg5 Be6 Re5 Ref1 Ke2 Bf5 Rf3 Rd1 Rg3 Rd4 Rh3 Rf3 Qh1 Rgd1 Qf1 Rac3 Qh1 R1d3 Qh2 Qh1 Qg1 Be3 Rf1 Rh4 Ra1 Nc6 Rf1 Kc8 Ra1 Kd8 b7+ Bb6 b8R+ Kc7 Rb7+ Kc8 Rf1 Be3 b6 Bd2 Ra7 Rc1 Rc7+ Kd8 b7 Rh5 Qa2 Ne7 b8R+ Nc8 Rb1 Ne7 Ra1 Rb3 R7c5 Rb2 Nb8 Rbb3 Nc6+ Kc7 Nb8+ Kb6 Qa5+ Kb7 Rc7+
3BK3/nr2N3/q1R1bN1B/1BNQr1B1/1nR3pN/1P2b1r1/N2k4/2Rrb1b1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Kd4 a5 h4 g5 f4 e6 b6 a4 b3 g3 f6 c6 b7 g2 h5 a3 f5 a2 h6 g4 h7 Ra3 f7 Bg7+ f6 Ra6 f8B+ Ne7 Bb5 Rg8 h8N Ra5 Rh6 Qc7 Nf3 g1R Nh4 Rg3 N8g6 Na6 b8R Nb4 Nc3 e5+ Ke4 Kc5 d6 Ra7 d7 Qa5 d8N Rb7 f7 Be6 Rc8 Qa6 d3 Bf6 Bg5 Rh8 Rc1 a1R Bg7 Re8 f8N Rb1 Rc7 Nc8 Nh7 Na7 Qd2 Be7 Nf6 Bd6 Ne7 Ra1 Rc2 Rd1 Rc8 Bc7 Rc1 Bb6 Qg2 Bg8 Kf5 Kd4 Kg6 c5 Qc6 e4 Na2 e3 Qf3 e2 Ne6+ Ke5 Qg2 c4 Nc5 e1B Rc7 c3 d4+ Kd6 d5 Ke5 d6 Kd4 d7 c2 d8B Be6 Ra1 c1B Qh1 Bf5+ Kf7 Be3 Rc1 Bd7 Rg6 Bc8 B7h6 Bg1 Neg8 Re5 Ne7 Be6+ Ke8 Be3 Na4 Bg1 R7c4+ Kd3 Qf3+ Bbe3 Nc5+ Kd2 Qd5+ Nd3 Nh7 Bg8 Rc6 Be6 Qe4 Nb4 Nf6 Rb6 Qh1 Rb7 Qd5+
rBKNBbn1/rn2RBNk/3B4/N6B/b1R1Qp1R/b2Pb3/N2qn3/2n5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 f5 b4 Kf7 g4 Kg7 e4 c5 b6 a5 d6 h4 d3 h3 e5 a4 b5 c4 e6 c3 d7 c2 e7 h2 e8B a3 b7 a2 b6 Be7 g6 Ba3 g5 Ne7 Qe1 Bc5 Nc3 Nd5 Ba3 c1B Nh3 Bf8 Qe4 Nc6 b8N Rh7 b7 Ncb4 Be2 Kg8 g7 Nf6 Nc6 Na6 b8B Be3 Na5 Nc5 Rac1 a1B Na2 Nb7 Rc4 Bb2 Bad6 Ba3 Bd1 Qb6 d8N Qb4 Re1 h1N Re2 Rh6 Rh2 Kh7 g8R Bd7 Rg7+ Kh8 g6 Ng8 Be2 Rh7 Re7 Ng3 Ng5 Qd2 Nge6 Ba4 Bd1 Ne2 Ng7 Nc1 Rh4 Nh6 Nge6 Rf7 g7+ Kh7 g8B+ Kh8 Bh7 Ng8 Bg6+ Rh7 Bh5 Rg7 Be2 Rf7 Ng7 Kh7 Kg2 f3+ Kg3 f2 Kf3 Rf6 Bhf7+ Rh6 Kg3 f1N+ Kh3 Ng3 Bf3 Kh8 B3h5 f4 Kg4 Nge2 Kf5 Kh7 Ke5+ Rg6 Kf5 Rg5+ Ke6+ Rf5 Qd4 Rb5 Kd7 Rb6+ Kc8 Rba6 Qe5 R6a7 Qe4+
b1R2Rbn/NQb2pK1/4B2B/1r4Q1/kN1rR3/n2Pr2R/1Rr3N1/1Rq4b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kf5 h5 b4 c4 e4 a4 g4 a3 g6 h4 d6 c3 g5 a2 e5 f3 g7 c2 e6+ Ke8 b6 h3 d7+ Ke7 b5 Kd6 d3 Kc5 e7 Kb4 e8R h2 b7 f2 b6 Ne7+ Kf6 Ra3 g8R Ra8 g6 Ra4 g7 Nbc6 b8R Nd4 b7 Qc7 d8N Bf5 Nc3 Rh5 Nf3 Bh7 Bh6 c1R Ne1 Rb5 Ng2 Rc2 Qc1 Ng6 Re4 Nh8 Qg5 Bd6 Rf8 Bg8 Rb1+ Ka5 Rb2 a1R Nd5 Re1 Nb4 Re3 Rc8 Qc5 b8Q Bc7 Qb7 Qc3 Be2 f1B Bg4 Qd2 Bd7 Qc1 Be6 Be2 Rf1 h1B Rf3 Bd1 Rh3 Bf3 Rb8 Ra1 Ndc6+ Ka4 Na7 Ra2 Qe5 Rc4 Rfc8 Nc2 Qg5 Rd4 Rb1 Na3 Rf8 Bh7 g8R Rb2 Rbc8 Rc2 Rg6 Bg8 Kg7 Be2 Rf6 Bh5 Rf2 Bf3 Rf4 Bc6 Re4 Bd5 Qb8 Ba8 Qb7 Rcc5 Ra2 Rc2 Rab2
N1r4B/N1qr2Nr/RR5R/qN3n2/rb2Kn2/1p1r1R2/kP2n1R1/B2B1Q2 b - - 0 1 illegal: Other
2BKB3/5RpB/2N1bQ2/2r1q2N/2n3P1/1qBbR3/Bb1r1q2/kRBr1rQ1 b - - 0 1 illegal: No possible last move
1n4BR/6bN/qQ3nRp/BBK1Bq1N/8/1r1q1r2/1N3rNP/RB1krn2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d3 Bb7 d4 Be4 fxe5 cxd4 Ra4 f4 Ra1 Bf5 gxf5 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 Kf7 Kd3 a5 Kc4 g5 e4 d3 b4 d2 f6 Ke6 b6 g4 b7 a4 b5 f3 f7 a3 b6 a2 Nh3 f2 Bd3 f1N Nc3 h6 Rg1 d6 Nf4+ Ke7 e6 Kf6 e5+ Kg5 e7 g3 e8N g2 e6 Nc6 b8B Ra3 e7 d5+ Kc5 d4 b7 Qd7 Ng7 Nb4 Na4 Rb3 c4 Qf5+ Be5 Nf6 b8R Nc6 Bb1 d3 Ngh5 Bg7 e8B Rf8 Nb2 Kh4 Rd8 Nb8 Bb5 Kg5 Qc2 d1R Bd2 Kg4 Ba5 Re1 Qf2 d2 Qd4 Kf3 Rc8 Re8 f8N d1Q Nh7 Qdd3 Qd8 Re7 Qb6 Rf7 Rh8 Re3 Rh1 g1Q Ng2 Qf2 Rg1 Ke2 Nh4 Q2f4 Rg6 Rf3 Ng2 Q4e4 Rc8 Qa8 Rh8 Qc2 Kd4 Qa6 c5+ Kf2 c6 Qcd3+ Kc5 Ke2 c7 Rf8 Na4 Kd1 c8B Re8 Be6 Qg4 Bd6 Qgf5+ Bd5 Re2 Be5 Reb2 Bg8 Rbf2 Bc2+ Ke2 Rb1 a1R Nb2 Ra4 Qb7 Re4 Ra1 Ree3 Bb1 Re4 Na4 Kd1 Qb6 Re1 Nb2+
1n1rr1n1/k1bB1n1p/4nR2/BK5P/NB2B2R/bQBRNN2/1b3N2/1b2n3 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 Qf6 cxd5 exf4 Qb3 f3 Qc2 f4 Qd1 Qf5 gxf5 Bd6 Ra6 Be7 Ra1 Bf8 h4 Kd7 d4 c5 Kd2 Kc7 Kd3 Kb6 Kc4 g5 e4 a5 b4 g4 e5 f2 h5 g3 d6 f3 f6 g2 e6 a4 d5 a3 f7 a2 e7 Bg4 e8B Bh3 d7 Bh6 d8B+ Ka7 f8B Kb7 b6 Bc8 d6 Be3 b5 Ne7 d7 Rg8 Nd2 Bf4 Rh4 Bc7 Nh3 g1N Bg2 f1N Nf2 Ne2 Bb2 Nf4 Bc3 Nh2 Qb3 Ng4 Nf1 Nh6 Ne3 Ne6 Rf1 a1B Bh1 Bb2 Bg2 Bf4 Bc7 Bh2 d8R Nf7 Rd3 Bf4 Bd8 Bc7 Bd7 Rh8 Bh1 Ng8 Bfe7 Ra1 Bf8 Rd1 Bg2 Ka8 b7+ Ka7 b6+ Ka6 Nh3 f2 Be4 Ba3 Ba5 Rd2 Bf6 Rd1 Bfc3 Rd2 Ra1 f1N Nf2 Nh2 Rf1 Nf3 Be7 Ne1 Bf8 Nc6 b8N+ Kb7 Kb5 c4 Bfb4 Ka8 b7+ Ka7 Na6 Nb8 Be5 c3 Nc5 c2 Na4 c1B Bg7 Bcb2 Bgc3 Nc6 b8N Re2 Na6 Nb8 N6c5 Rd2 Bg2 Bb7 Nce4 Re2 Nd2 Be4 Nf3 Bf5 Rd1 Bb1 Rdd4 Nf6 Rd3 Rd8 Bh3 Ng8 Bf5 Re8 Be4 Rc2 Bg7 Rc4 Bgc3 Rd4 Rg1 Rd6 Rg6 Rd4 Rf6 Rd6 Bdc6 Rdd8 Bd7
1Brr3k/2b3n1/NN5n/r4BnB/1B1q2pQ/3N1pbR/bRP1R1B1/5K1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 d5 e4 a5 h4 f5 b6 Kf7 b5 g5 h6 f4 b7 d3 b6 g4 h7 Kg7 e6 f3 e5 a4 e7 d4 e8B a3 e6 a2 e7 Qd7 h5 Qa4 h6+ Kf6 Ba3 Bg7 Nh3 Bf8 Bg6 Bg7 e8B Nd7 b8N Qa7 b7 Nf8 Nd2 Be6 Rb1 a1B Bb4 Ba2 Nc4 Ne6 Rh2 Ng5 Bg2 d2+ Kf1 d3 Nf2 Be5 Nh1 Bg3 Na6 Qd4 Qe1 d1N b8B d2 Rb2 Ra7 Bf5 Ne3+ Kg1 d1R Bh5 Bf8 Nb6 Bfd6 Rh3 Bc7 Rh2 Nd5+ Kf1 Nf4 Rh3 Nfe6 Rh2 Ne7 Rh3 Rc8 h8R Ng8 h7 Nh6 Re8 Kg7 h8N Rd2 Ng6 Kh7 Re7+ Ng7 Nf4+ Kh8 Re2 Ra8 Qf2 Rd3 Qe1 Ra3 Qf2 Ra5 Nd3 Rd8 Ba7 Rac8 Bb8 Bge5 Qh4 Bh2 Bc3 Bhg3 Bb4
r1nQ4/q2RQ2N/1k3B2/2nN1P1b/p2rQrpN/n4B2/1bQQb1K1/3R3Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 Kd7 Kf2 Kc7 c4 e5 b6+ Kc6 b5+ Kc5 f6 g5 b7 d3 f5 g4 f7 d2 h6 e4 h5 e3+ Kg2 a4 b6 e2 h7 e1R h6 d4 Bb2 d3 Na3 Bd7 Bf6 Be6 Nb5 Bc8 Nf3 Nd7 b8Q Qc7 b7 Bd6 f8N Ra7 Be2 Qa5 Nh4 Ra8 Qa7+ Kc6 b8Q Ba3 c5 Rf1 Qf4 Bb2 Nc7 Ne7 Rh3 Rg8 h8Q Rf3 Qb1 d1N h7 Nc3 Qd2 Rf4 Qh1 Qa6 Rd1 Nb1 Qhe1 Na3 Bf3+ Nd5 Qe4 Rg7 Qb8 Qa7 Qbb4 Ba6 Qg8 Bb5 h8Q Kb7 c6+ Kb6 Qbe7 Nc5 Qgh7 Bc4 Qd8 Rd7 Qhe7 Rd6 Nh7 Bb3 Qef8 Ne7 Rh2 Nc8 Qfe7 Bd5 Qc3 d2 Ne6+ Ka6 c7 Nc2 Qhf8 Na3 Ng6 Qb6 Kg1 Qa7 Qh6 Nb6 c8Q+ Nb7 Qh3 Bc6 Nh4 Be8 Rg2 Rd5 Qh1 Bh5 Qc1 Rd7 Q8c2 Nc5 Nc7+ Ka5 Re2 Nc8 Kg2 Kb6 Re3 Rd6 Rd3 Rd5 Rf1 d1B Q1d2 Be2 Rd1 Re5 Rd7 Rd5 Bg7 Rd6 Bf6 Rd4 Nd5+
5QN1/r1n1rb2/4pq2/bb2B1PR/B2KR3/1B1p1r2/RR1B1kRN/1n1nN3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 h5 g4 a5 f4 d5 c4 e6 b4 a4 g6+ Kf6 g7 a3 c5 a2 c6 h4 g5+ Ke7 f6+ Kd6 f5 Ke5 c7 h3 f7 h2 b6 Ne7 g8N Rh5 f6 Rh4 b7 Ra5 b5 Rh5 b6 Rh7 Nd2 Kf4 Ndf3+ Kg3 Ne1 Na6 b8B Kf2 b7 Bd7 c8B Nc7 Ngf3 Be8 Bd7 Ra7 Bd2 Rh3 Rg1 h1B Ba4 Bg2 Be2 Bf1 Qb3 Bg7 f8R Bf7 Qa3 Rh7 Nh2 Bh8 Rc1 a1R Rc2 Rb1 Ra2 Rb3+ Kc2 Rg3 Bc4 d3+ Kc3 Rf3 Bcb3 d4+ Kc4 Bg7 Re8 Ned5 Qf8 Nc3 Re7 Bg6 f7 Nb1 Rg4 Be5 Re4 Bd6 Rd7 Qf6 Rd8 Bb4 Rd7 Na8 Be5 Ba5 b8R Nc7 Rb4 Ne8 Rdb7 Nc7 Rh4 Be2 Rh5 Rg7 Qd8 Rh7 f8R Re7 Rf7 Bf1 Qf8 Be2 Rfh7 Bf7 Kc5 Bf1 Rc4 Be2 Rcc2 Bf1 Rh4 Be2 R7h5 Bf1 Re4 Be2 Bc3 d2 Bb4 d1N Bd2 Bc4 Rcb2 d3 Kd4 Bb5 Rb6 Qf5 Rc6 Qf4 Rcc2 Qf6 Bf4+ Kg1 Rce2 Ba6 Bd2 Bc4 R2e3 Bb5 Rg4+ Kf2 Ree4 Qf5 Rg3 Qf6 Rg2#
1Bq1r1B1/7B/3n4/R1B1bBr1/4Q3/1rpRRN1B/K2P1Q1p/N1kqn1qb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 b4 Kd6 g4 Ke5 g6 Kd4 g5 a5 e5 h5 d6 f5 g7 c5 g6 a4 d7 c4 e6 c3 e7 h4 e8B h3 b6 f3 b7 f4 b5 h2 b6 f2+ Ke2 a3 Bh3 f1R Qe1 a2 Kd1 Kd3 Na3 f3 Nc2 f2 Ba3 Na6 Kc1 Rb8 Bc5 Nh6 g8B Bg7 Nf3 Nf7 Bh7 Nd6 Rg1 Rg8 Rg3 Rg1 Bf7 f1Q Bfe6 Qe8 d8R Be5 Bd7 Qe6 g7+ Qf5 Be6 Re8 g8B Nb4 Bd7 Qe2 Bde6 Rg2 Qf1 Bd7 Qf2 Bc6 Bd7 Be4 Bde6 Qf8 Bef5 Qe3 Ncd4 Qe2 Nb3 Nc2 Rd7 Ne1 Re7 Ra8 b8Q Ra3 b7 Qf1 Qa8 Qg1 Bc8 Qf5 b8B Qd7 Qa4 Qc6 Bcf5 Qc8 Rb1 a1Q Qa8 Qa2 Na1 Qb3 Rb2 Qa4 Kb1 Rb3 Rd7 Rb5 Re7 Qd1+ Ka2 Rb7 Rb3 Rb4 Ra3 Rb3 Rgg7 Rg5 Ra5 Qg3 Rd7 Qg1 Rge7 Rb4 Nb3 Kc2 Na1+ Kc1 Qc6 Rb3 Qa4 Bd3 Qe4 Bf1 Rd8 Bg2 Re6 Bh1 Rd7 Nc4 Rd3 Nd6 Qeh4 Bf4 Ree3 Be5 Qe4
NbK1nbQk/Q2nN3/B1N2r2/2r1qB2/1rR2BP1/1Bp2b2/3p1B2/2qBR3 b - - 0 1 illegal: No proof kernel
q2b1nr1/4R1N1/b1B2n2/Q3q2k/1rPB4/pN4B1/N1p1RR1K/R2NrqR1 b - - 0 1 illegal: No proof kernel
Q3q3/4RQ2/NnN1rN1q/KNN1bN2/1P1p2Rr/4b2p/R4nn1/BBkb4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 a5 g4 e5 c4 h5 b6 d5 b7 d3 Kc3 e4 c5 h4 g6+ Kf6 c6 h3 g7 a4 c7 e3 g5+ Kf7 f6 Ke6 g6 Kf5 f7 Ke4 f5 d2 f6 a3 Bd3+ Kf4 Qf1+ Kg5 Ra2 d1Q Nf3+ Kf4 Nd4+ Qf3 Nc6 Na6 b8N Nc5 Kb4 Ra6 Nc3 Rh4 Nb5 Qe8 Bb1 Bg4 c8N Na4+ Ncd6 Nh6 g8R Nb6 g7 Qf2 b3 Bd1 Bb2 e2 Ba1 e1N Rg1 Ke3+ Rg4 Be7 f8N Ng2 f7 Bg5 Ne6 Qf6 f8Q Qfg6 Q1f7 Qh7 Rc4 Ng4 Nc5 Nf2 Rg4 Qh6 Rh8 Bf4 g8N Be5 Rh7 d4 Bc2 Kd2 Nf6 Kc1 Bb1 Nh1 Nf5 Nf2 Re2 a2 Rhg7 Ra7 Rb2 Re7 Ka5 Re6 b4 Qd8 Rd2 Qe8 Bc3 a1B Ra2 Bb2 Nba6 Ba3 Ba1 Bb2 Q8g8 Bc3 Rh7 Bd2 Qgf8 Be3 Qh8 Qd7 Qa8 Qc8 Qg6 Qd7 Re7 Qe8 Qf7
1N1q1b2/rb4Q1/Rn1qBn1B/B1k3pr/2B5/pRKBN2n/5RPN/1q1R4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Qd6 h5 Qg6 hxg6 Bd6 Qb3 Ba3 Qd1 Bf8 b4 Kd7 e4 Kd6 d4 a5 Kd2 c5 g7 h5 b6 f5 b7 c4 b5 a4 e5+ Kc7 b6+ Kd7 e6+ Kd6 e7 f3 e8B f2 Nf3 h4 Nh2 h3 Bg6 f4 Ba3+ Kd7 d6 Kc6 d5+ Kb5 d7 f3 d8B Rh4 d6 Nf6 g8B Nbd7 b8N Ra7 b7 Rh5 Be6 Nb6 Bfd3 f1Q d7 f2 Kc3 Qe1+ Nd2 f1Q Bgf7 Qf4 Rf1 Qd6 Rf2 Qe2 Qc2 Qd1 Ndf1 Qb1 Bb2 Kc5 Ne3 Qd1 Bc7 a3 d8R Qb1 Qa4 Qd1 Qd7 Qb1 Bg8 Qd1 Qg7 Qb1 Nf3 h2 Bgf7 h1N Nh2 Qe7 Rd6 Qd8 Bh7 Qg6 Rad1 Qh6 Bd3 Qg6 Kc2 c3 Bc4 Qh6 Bfe6 Qg6 Kb3 c2 Bc3 c1Q Ba1 Nbd7 Ra6 Qb1+ Kc3 Qh6 Ba5 Nb6 Nc6 Qg6 b8R Qh6 Rb7 Qg6 Nb8 Qh6 Rff1 Nf2 Bb2 Nh3 Rf2 Na8 Rb4 Nb6 Rb3 Bb7 Qg8 Na4+ Kd2 Nd5 Bf7 Ng1 Bg7 Qhd6 Bh6 Nf6 Qg7 Nh3 Bfe6 Nb6 Kc3
1rk5/5B2/qnRb3B/1qB1P2Q/N2RN2r/3p1pQB/4n2N/bbr1B1BK b - - 0 1 illegal: No possible last move
rn5R/BK2nq2/BR1N1b1N/NR1P1pB1/BQ1B3R/r7/n5pb/4qk1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kc4 b4 g5 d4 a5 d6 c5 d7 f3 b6 a4 b5 f2 h6 a3 h5 a2 h7 f6 b7 g4 h6 g3 b6 Ra6 Nh3 Nc6 b8B Ra5 b7 Ra7 Ng5 Ra3 Rh4 Ra7 Qa4+ Nb4 Nc3 Ne7 Rb1 a1B Nf7 Rg8 h8B Bb2 h7 Rg6 Bg5 Qe8 d8N Ra8 Nh6 Qf7 Nb5 f5+ Ke5 Rb6 Ba7 Ra6 b8R Bb7 Nc6 Bg7+ Kd6 Bf6 Kc7 Ba1 Bh3 f1Q e4 Kd3 e5 Ke2 e6 c4 Na5 c3 Nd6 Bh1 d5 c2 Rb6 c1N Kb7 Nbc6 R1b5 Nb8 Qb4 Qe1 Bf1+ Kf2 Bg7 g2 h8R Bae5 Be2 Bh2 Bd3 Nc8+ e7 Na2 Be2 Qg8 e8B Ne7 Nc6 Ra3 Na5 Qf7 Bc4 Rd3 Bc6 Kf1 Be8 Bc3 Bd4 Ba1 Bb3 Rc3 Ba4 Ra3 Bd7 Bb2 Bc8 Bc3 Kc7 Ba1 Ba6 Bb2 Kb7 Bc3 Bg1 Bf6 Bd4
qb1B4/1bNB1KNR/8/1PB1kQ1N/2R2R1n/pqr1p3/n2B4/bRq2r1R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 b4 c5 d4 e5 g4 a5 f4 c4 f6 h3 b6 c3 b7 a4 f5 h2 b5 c2 g5 a3 g6 h4 g7 h3 f7 Rh7 f6 Ra5 Qh5 Be7 f8B Qc7 f7 Ra7 Ne2 Qc5 Bd2 c1B Nf4 Bg4 Nc3 Bd7 Rb1 Be6 Qf5 Bb2 Nh5 Nc6 b8R Rc7 Rb7 Nh6 g8R Nb4 Rg4 Bc8 Be2 Rg7 Rf4 Rg6 Bg4 Ba1 Ra7 Re6 Ra4 Na2 Rc4 Kd7 d6 Bb7+ d5 Qb4 Bc1 Bf6 Bd2 Qb3 Be7 Bh4 f8R Bg3 Rf7 Rc8 Rh7 Rc5 Kd3 e4+ Kd4 e3 Bf8+ Nf7 Be7 Ne5 Ke4 Ng6+ Kd4 Kc8 d7+ Kc7 d8N Rf6 Ne6+ Kd7 Ke4 Nh4 Ke5 Rc6 d6 Rf7 Rhc1 h1Q Rd1 Qg2 Rh1 h2 Bh3 Qf1 Bf8 Qc1 Neg7+ Kd8 d7 Kc7 Bc5 Rf8 Rg1 h1Q Bg4 Qg2 Rh1 Bh2 Ba7 Rc5+ Ke6 Rc6+ Ke7 Rf7+ Ke8 Kd6 d8B Qf3 Nd5 Rc5 Rb4 Rc3 Nc7 Rf6 Rbc4 Qc6+ Qd7+ Ke5 Bc5 Qa6 Qc8 Qa8 Bd7 Rf7 Rg4 Rf3 Rgf4 Rf1 Kf7 Qba4 Bg4 Bg3 Rf2 Qb3 Nce8 Kd5 Rf5+ Be5 Rff4 Bb8 Nc7+ Ke5 Qd7 Rc2 Qd3 Rc3 Bd7 Qcb2 Qg6 Qc1 Qf5+
2RBB3/1b1Q4/1bRN2n1/p1rQNq1Q/Rp2r3/1QP1nbq1/Q3qk2/1K5Q b - - 0 1 illegal: No proof kernel
N1n2nB1/1BrQ1N2/1B1b3p/2N1Rp2/1qbq1b2/2n1BRNk/2B2PRr/6K1 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 e4 Ke7 g4 Ke6 c4 d5 c6 a5 b6 f5 b7 h6 g5 d4 g6 h3 g7 d3 c7 h2 c5 a4 c6 a3 Nd2 a2 Nb3 Nd7 b8B Ne7 Nc5+ Kf7 g8B+ Kg6 e6 Rh7 e5 Qe8 Ba7 Ba6 c8B Bc4 c7 Rg7 Bb6 Bd5 Ne2 Kh5 Rg1 Kh4 Rg2 Ra4 Bb7 Nc8 e7 h1Q e6 Qd8 e8N Na7 Ng3 d2+ Ke2 Rag4 Rb1 a1B c8N Be5 Nc7 Bf4 Nd6 Nc8 Rb3 Bc4+ Rd3 Be7 Na8 Nf8 Qa4 d1N Qc6 Bf6 e7 B6e5 e8R Rc7 Nf7 Qd4 Qd7 Bd6 Re5 Nc3+ Ke1 Rg5 Rf3 Rh5 Be3 Kg4 Rg1 Rh2 Bd3 Kh3 Kf1 Bg5 Rf4 Qc6 Rg2 Qa4 Kg1 Qb4 Rf3 Bf4 Bc2
2BB1k1q/B1br1rN1/R4p2/b4KBN/NR2r2R/n2nbP2/3R1pB1/1qQ5 b - - 0 1 illegal: No proof kernel
2K3B1/2RNR3/Rq1b1pB1/b1N5/1qrBpkBn/q6b/Nr2P2N/n4QB1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bc8 g4 h5 Qa4 Na6 fxg5 Rh7 g6 Nb8 g5 Rh8 Qg4 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 a5 b4 c5 d4 g3 h4 a4 b6 g2 g7 e6 h5 a3 b7 c4 b5 a2 h6 c3 b6 c2 h7 Ra6 g6 Ra4 Be3 c1B Nf3 g1Q Bh3 Ne7 Nc3 Na6 b8N Qd1 b7 Nc6 Nh2 Nc5 Na6 Qd2 b8N Ba3 Rhc1 Qd3 Bg1 Bb7 Bg4 Rg8 h8B Ke7 d6+ Kf6 d7 Qe7 d8R Qb5 Re8 Bb4 d5 Nb3 d6 Ne5 d7 Bg2 d8Q Nf3 Qd1 Nh4 Qf1 Bh3 Ke4+ Kg5 Nd7 Qb7+ Ke5 Qd8 Rc2 Bfc5 Rcc1 Qa5 Re7 Rb8 g8B Qa7 g7 Bd6+ Ke4 e5 Bh7 Rb5 g8B Q7b6 Nd5 Bc3+ Ndb4 Bd2 Bg6 Be1 Rab1 a1Q Rc7 Qa2 Rb2 Na1 Nac5 Qb1+ Kd5 e4 Be5 f6 Ra2 Qaa7 Bed4 Bd2 Na6 Rc4 Nb4 Bc3 Ra4 Qe1 Na2 Rb2 Ra3 Qaa5 Ra4 Qg3 Ra3 Qab5 Ra6 Ba5 Ke6 Qa4 Ne5 Qab4 Kd7 Qe3 Kc8 Qea3 Qb1 Kf4 Ned7 Nc2 Qe1 Na1 Qf1+
k1r3b1/BBR5/1B1RP1Rn/rp3qBK/3R4/QNpqb1N1/5qb1/1nNB4 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 c5 Kg4 Kc7+ e6 g5 a4 b6 e4 Kb7 d4 b3 h4 c4 e5 f6 d6 c3 d5 b2 h6 f5+ Kh5 g4 d7 f4 h7 f3 a5 g3 d6 f2 e7 g2 e8N Qc7 d8B Ne7 d7 Ng6 a6+ Ka7 e6 Qb7 Ra4 Ne5 Qb3 Nf7 Rd4 Bg7 Nf6 Ne5 Ne4 Nbc6 Bcg5 Nc4 Ng3 Rg8 h8B Bh6 Nd2 b1B N1e2 g1Q Qa3 Bc2 Nb3 Bd3 Nec1 Bh7 Bc7 Qb8 d8R Bb7 R8d6 Nd2 Bc4 Qh2 Rg1 f1Q Be2 b5 Bd1 Qbf8 Bb6+ Kb8 Bhf6 Qd3 a7+ Kc8 Be3 Nd8 Bfg5 Bg2 Bf2 Kb7 Bfe3 Rc8 a8B+ Kb8 Bb7 Nb1 Ba6 Nf7 R4d5 Bg7 Nf1 Rc5 Bf6 Nh6 Bbd8 Bf5 Bc8 Qe5 Kg5 Qee4 h5 Ng4 h6 Bh7 Kh5 Bh1 Bed4 Rc4 Bf2 Qg2 Ba6 Ra4 Ba7+ Ka8 Rd4 Qf2 Bdb6 Ra5 Rg3 Bg2 Bfd8 Ne3 Rg6 Ng4 Ng3 Be5 Bg5 Q8f5 Bd8 Rf8 Bdb6 Bg8 h7 Bf4 h8R Nh6 Rh7 Rc8 Rc7 Be3 Bb7+
4Br2/1bB1RRr1/1N1Kp1P1/2Q1p3/NbqN1b1N/k3qnN1/6BQ/2N1q1n1 b - - 0 1 legal: proof: e4 b5 c4 g5 a4 d5 axb5 f6 cxd5 g4 e5 fxe5 h3 Kf7 hxg4 Ke8 g5 Bg4 Rh2 Be6 Rh1 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 f4 h5 d4 a5 g6 h4 g5 a4 g7 a3 b6 a2 b7 h3 d6 h2 Kd5 Bg4 f5 Bh5 d7 Bg6 f6 Qe8 d8N Rh3 f7 Bf5 Bg2 Nd7 b8Q+ Ka5 b4+ Ka6 b5+ Ka5 b6 Kb4 b7 Bh7 Nd2 Rh6 Nc6+ Kb5 Ne2 Nc5 Nb3 Ka4 Bf4 Qc8 Nbc1+ Nb3 Ng3 Ka3 Qh5 Rg6 Rf1 Nh6 g8B h1Q Qh2 Qe8 Qc8 Ng4 b8N Nd2 Nd7 Nf2 Nb6 Nh3 Qf5 Bh6 f8N Ng1 Bf7 Rg7 Ng6 Ndf3 Nh4 Bg6 Rb1 a1B Qc2 Bh5 g6 Bc3 Qf2 Qc8 Be8 Bb4 Qc2 Rb8 Qc5 Qa6 Ke6 Qc4+ d5 Ra8 Nd4 c6 Bd2 Bf4 Kd7 e6+ Kd6 Bg4 Bc3 Bf5 Be1 Be4 Ra1+ Kb2 Ra7 Rc8 Re7 Ka3 Kd7 Rb8 d6 Rd8+ Kc7 Rb8 d7 Ra8 Bf7 Rf8 d8N Bd5 Be8 Be4 Qb5 c5 Kd6 Bb7 Bf2 Qb3 Qc6 c4+ Qc5 c3 Be1 c2 Bc3 Bh6 Bd2 Qc4 Be1 Ng5 Rff7 N5f3 Bc3 Bf4 Bd2 Bc6 Nb7 Bd5 Na5 Ba8 Nab3 Bb7 Nd3 c1Q Nb2 Nh3 N2a4 Qhe1 Na8 Nhg1 Bc3 Qce3 Bd2 Ka2 Bc3 Ba3 Ba5 Bb4 Nc1+ Ka3 Bc7 Qa6+ N8b6 Qb5 Ndf5 Qc4 Nd4
2N1B2q/k2r1R2/bRpB2q1/4Q2r/1R2P2Q/1nRq1R1p/n1R5/3rQNbK b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 h5 g4 a5 Kg2 f5 d4 h4 e4 a4 b6 a3 g6 a2 b7 Ra4 b5 Rb4 g5 Qe7 b6 Qg7 d6 Kc6 d5+ Kc5 d7 Rb5 d8R Nc6 b8Q Bd7 b7 Kb6 d6 Be7 Nf3 Qf8 g7 Ka6 g6 Be8 d7 Nb4 Nfd2 Qf7 Rh2 h3+ Kh1 f3 Nc3 f4 Rc8 f2 d8Q f3 Rb1 a1R Ba3 Bc5 Nd5 Nf6 g8R Rh7 g7 Qg6 Rf8 Na2 g8R Nd7 Qh4 Be3 Bd3 Nc5 Rb4 Nb3 Qe1 Rd7 Rg7 Rd1 Ne7 Bd4 Bc2 Rh5 Nf1 Bf7 Bd3+ Bc4 Rgf7 Bb5 Bc4 Bc5 Bd5 Kb6 Bc6 Be3 Rc4 Ba6 Bd6 Bc5 Rf6 Be3 R8f7 Bc5 Rcf8 Bd4 Qe8 Ka7 b8R Bc5 Rbb4 Be3 Bd5 c6 Rc3 Bf4 Rg2 Bh2 Be6 Bg1 Rf5 Rd2 Rfb5 Rd4 Rb6 Rd1 Ng3 f1Q Rgc2 Qc4 Nf1 f2 Rff3 Qd4 R8f7 Qdg7 Qh8 Q7h6 Qe5 Qh8 Bg4 Rb7 Bd7 Rc7 Ne3 f1Q Be8 Qd3 Nf1 Rd7 Nc8+
N3N3/1Q3BK1/1PbqBrR1/bB2Nb1R/8/kn1p2N1/3rrp2/q1Bn1RB1 b - - 0 1 illegal: No possible last move
b2NN2r/1nB1RQ1R/P4r2/NRqp1R1B/2k2n2/3Rb1K1/rpbQq3/7R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 f4 d5 Kf2 b5 a4 e5 h4 g5 c6 e4 c5 e3+ Kg3 g4 c7 b3 a5 b4 c6 e2 f6 Ke6 f7 e1R a6 b2 h6 b3 f5+ Kd6 h5 Kc5 h7 Qd6+ Bf4 Nf6 h6 Re6 Ra5+ Kb4 Ne2 Ng8 f6 Ne7 Rb5+ Kc4 Qd2 Re4 Nd4+ Re2 Ne6 Ng6 Nd8 Be7 f8R Qe6 f7 Bb7 c8R Bc5 c7 Rg8 h8R Bb6 h7 Nd7 Bg2 Ra7 Bf3 Nc5 Ra8 Rh2 c8N Qe2 Bc7 Nf4 Re8 Rg6 f8Q Rf6 Qf7 Bc6 Rd1 Nb7 Re7 Be3 Rf8 Rf2 h8R Rh2 Rb8 Ra8 Rh1 Rf2 R8h7 Rg2+ Kh4 g3 Bg4 Rf2 Bh5 g2 Kg3 g1Q+ Kh4 Qc1 Kg3 Na5 R8b7 Rb8 R7b6 Ba8 Rbe6 Nb7 Re5 Qc3 Rf5 Qb4 Rg8 Qc5 Rgg5 Ne6 Rf3 Nf4 Rf5 Bd4 Rd3 Be3 Nc3 b1B Na2 Bc2 Nb4 b2 Nbc6 Rf1 Bb6 Ra1 Bc7 Qa7 Rbb3 Ra2 Nd6+ Kc5 Ne8 Kc4 Ne6 Qc5 Rb6 Rd8 Rb5 Rd6 Ned8 Rh6 Rg7 Rh8 Rh7 Rf6 Na5+
r7/b2b2n1/pk1K2N1/3QRR1R/q1q2qrr/1B1B1RNN/1pP1R3/n1BN4 b - - 0 1 illegal: No proof kernel
N5R1/3B1R1r/p4P2/b2k1b1r/pn2qq2/KNB2N1Q/N1b1Nn1q/RB1B4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Bd7 hxg5 Bc8 g4 Kf7 f4 h5 b4 e5 d4 c5 Kd2 h4 Kc3 c4 Kb2 e4 d6 h3 b5 h2 d7 a6 b6 e3 f6 Ke6 f5+ Kd6 b7 e2 d5 e1Q f7 c3+ Ka3 c2 g6 Qee7 g7 Kc5 d6 Nh6 g8B Qg5 f6 Qd2 g5 Qd5 g6 Qe8 d8R Qde6 g7 Qe3+ Qd3 Qd4 d7 Qe1 Qh3 Qde3+ Nc3 Qd3 Ne2 Qd6 Bd2 Qe6 Bh7 Ng4 g8B Qd6 Na2 Qf2 Bc3 Bh6 f8N Qfd4 Ne6+ Kc6+ Nc5 Nf2 Bb3 Qe4 Rg8 Bd2 Bg6 Qde5 d8N+ Kd6 Bh7 Ra7 Nde6 Nc6 b8N Nb4 Nc7 Bf5 Nc6 Be1 Rhg1 h1B Ncd4 Qh2 Na8 Rc7 Bg6 Rh5 Nf3 Rch7 Be6 Kc6 Bd7+ Kd5 Nb3 Bd2 Rf8 Bg2 Rf7 c1Q+ Bb2 Qcc4 Bc3 Bh1 Rg3 Qf4 Rg2 Bc2 Bd3 Qce4 Rg8 Bg2 Neg1 Bh1 Bfe2 Be1 Bd1 Bg2 Qg3 Bh3 Ne2 Bf5 Qh3 Nc6 Bb2 Ba5 Bc3 Nb4 Nbd4 Bb3 Bb1 Bc2 Nb3
1q4N1/3bBK1p/2B4R/Pr4b1/N1nbr3/5p2/kRnN1Q1B/BRR2rqR b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kf3 b5 Kf4 f5 e4 c5 a4 c4 d4 c3 g4 c2 g6 b3 g5 b4 g7 b2 d6 Kc6 e6 b3 Ke5 f4 d5+ Kc5 g6 Kb4 d7 f3 a5 Bb7 e7 Nh6 Kf6 Ba6 g8R Bc8 e5 Ng4+ Kf7 Nc6 e8R Nd4 d6 Nf5 e6 Nd4 e7 Qb6 d8B Nf5 d7 Ra6 g7 Ra7 Ne2 Kc4 Bc7 Rb7 d8B Nd4 Qe1 Bd7 Bh2 Ne3 Nec3+ Kb4 Ba6 Nc4 Bb5 Qc5 Be3 c1B Bc6 Rb8 Ra2 Nc2 Na4+ Bd2 Bg5 Qg1 Qf2 Be3 Bf6 Bg5 Nd2 b1R Ba1 b2 Bdc7 Rf1 Bce5 b1Q Bf6 Nd4 Rc2 Bc8 Rd8 Ka3 e8R Qb2 Re7 Ka2 Rc1 Nc2 Rb7 Bd6 Rgf8 Bc5 Rd6 Bd7 Rb5 Qe5 Rbb1 Bd4 Re6 Rb6 Rb8 Re8 g8N Qf4 Rd6 Re4 Rb7 Qfg3 Be7 Rb4 Rh6 Qb8 Rb5 Rb2 Rf5 Rb6 Rfb5 Rb7 R5b4 Rb5 R4b2+
q4rQN/NB3Np1/pn2B2R/1R1qRn2/3N1K2/N2P2B1/1bbr4/kn1Bq3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Ke3 c5 h4 f5 b4 a6 h5 g3 h6 c4 d3 g2 e6+ Kd6 b6 Ke5 d6 c3 e7 c2 e8B Nc6 b7 Qd7 b8N Nf6 h7 Rg8 h8N Na5 b5 Be7 b6 Ne4 b7 Rf8 Rh6 Bf6 Na3 Nc3 Bf7 Nb1 Be6 f4+ Kf3 Kd4 e4 Kc3 e5 Qb5 d7 Nc4 d8N Bd7 Be2 Nb6 Nbc6 Rc8 b8R Qd5+ Kg4 f3 Na7 f2 Nf3 f1N Kf4 g1Q Ndf7 Qg6 Nd4 Ng3 Qf1 Bb5 Bd1 Ba4 Qh1 Qa8 Qd5 Qh5 Bd2+ Kb2 Be1 Nf5 Bg3 Qh1 Qd8 Qhd5 Qe8 Nd2 Rb1+ Ka2 Rb5 c1Q Rb7 Rc2 Re7 Rb2 Qc8 Ka1 Qc4 Rb8 Qc8 Bb3 Qg8 Bc2 Bc8 Qa2 e6 Nd7 Nf3 Ba4 Bb3 Nb6 Bb7 Qe1 Bd1 Nb1 Re8 Rd2 e7 Bb2 Nd4 Qb3 Rd8 Qc4 e8B Qc6 Rdd5 Bc2 Re5 Qd5 Bd7 Rf8 Be6
nQN2qN1/r2Qpbb1/6R1/2KQ4/r5pk/B1b1N3/Br1RP2n/1qQQ2Q1 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 Kf2 c5 Ke3 a5 d4 f5 b4 Kf7 h4 Kg6 h5+ Kg7 g6 Kh6 g7 Kg5 d6 a4 b6 a3 b7 a2 h6 c4 b5 c3 h7 c2 d7 Ra7 b6 Ra3+ Nc3 Ra6 d5 f4+ Kd4 Ra5 d6 Ra7 Nh3+ Kh5 Kc5 f3 Nf2+ Kg6 Na4 Nh6 g8N Bg7 Ba3 Kg5 Bg2 Nf7 Rh6 c1B Rg6+ Kh5 Qd5+ Ng5 Nd1 f2 Ne3 Nc6 b8Q f1Q b7 Bd2 Nb6 Bdc3 Rd1 a1R Qc7 Qdf8 d8Q Nd4 b8Q Be6 d7 Nf3 Rd2 Bf7 Nc8 Kh4 Qb1 Qh1 Qg1 Nh2 Qe8 Rb1 d8Q Rb2 Qed7 Ra4 Be4 Ra7 Bb1 Ne6+ Kc6 Qe4 Ba2 Qb1 Qf4 Nc7 Kc5 Na8 Qff1 Qe8 Q8c7 Qd8 Qd1 Qf8 Qb8 Ra4 Qc1 Ra7 Qbb3 Ra4 Qbd1 Nf1 Qdc2 Qe8 Nd6 Nb6 Qde4 Kh5 Nh6 Nh2 Qd5+ Kh4 Q2d1 Rf8 h8Q Qa8 Qb5 Rb8 Qbc6 Rb7 Qd7 Rba7 Qhe8 Qb8 Ng8 Na8 Qed8 Qc8+ Q8c7 Qe8 Nc8 Qf8 Qb8
3RBq1b/2P1qb1Q/1B1Q1N2/1B2B3/1knr3r/4pN1B/K1p2nRB/4bNq1 b - - 0 1 illegal: No proof kernel
BqN1n1kN/bRpKBqr1/8/p4B2/RR3R2/R1qN2Q1/b2P1N1n/r4r2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 a5 Kd4 h5 Ke5 e6 f4 h3 g4 h2 b4 h4 d6 h3 f6 Ra7 d7 Rb7 g5 Rh4 b6 Ra7 b5 Bg7 f5 Bb7 g6+ Kf8 Bd3 Na6 Ne2 Bh8 g7+ Kf7 Ra4 Qf8 d8N+ Ke8 f7+ Ke7 Qb3 Nb8 Ba3+ Rb4 Nc1 Bd5 b7 Ra6 b6 Nf6 Nc3 Ne8 Nd1 Qg8 f8R Qf7 Qc3 Ba2 Nf2 Ra8 Rg1 h1Q Rg3 h2 Re3 Qf3 f6+ Kd7 g8B h1Q Bc2 Rf4 Ncd3 Qb1 Nc6 Rg4 Na7 Rg7 Qb3 Qh3 Nc8 Nc6+ Kf4 Kd8 b8R Ne5 b7 Nf3 Be7+ Kd7 Qa3 Nh2 Ke5 Ra6 Bh7 Rc6 Bd1 Rc1 Bf3 Rf1 Bf5 Qb6 Ra8 Qa7 b8R Ra1 Rb7 Qb8 Bg2 Qf3 Rbb4 Qc6 Ra7 Qc3+ Kf4 Rf1 Ba8 Ra1 Rab7 Rf1 Bh7 e5+ Kf5 e4 Rh3 e3 Rf3 Qfb3 f7 e2 Rff4 e1R Rg8 Rgg1 Rg3 Ra1 Bg6 Bd4 f8N+ Kc6 Bh7 Ba7 Ng6 Kd7 Nh8 Qg8 Rgf3 Rg7 Bg6 Nf6 Bh7 Ke8 Qb3 Qf7 Rg3 Qg6+ Ke6 Qh5 Bf5 Qh7 Bd8 Kf8 Be7+ Kg8 Rh3 Ne8 Kd7+ Qc4 Qc3 Qh5 Qe5 Qhf7 Qe3 Qc3 Qg3 Qfc4 Ra3 Q4b3 Rhh4 Qf7 Rba4 Qff6 Rfb4 Qf7 Rhf4
2qk3K/Np2N2B/rP2n3/bR1BN3/rNp5/N1qBB3/2RR2qr/1Q3bn1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 d5 hxg5 d4 b5 d3 Qg4 Bg7 Qb4 axb4 cxd3 Ra6 d4 Bf8 d5 Ra8 Ke2 e5 Kf3 h5 Ke4 c5 g4 c4 a4 b3 f4 b2 d4 h4 b6 h3 g6 h2 d6 Qd7 f6 Bg7 f7+ Kd8 f8Q+ Qe8 a5 Rh4 a6 Nc6 d5 Ra7 d7 Nge7 f5 Rh7 g5 Bh8 f6 Nb4 f7 Rg7 Ra5 Nec6 Kf5 e4 Kf6 e3 Rb5 e2 Na3 b1Q Be3 e1R Nf3 Na2 Qb4 Qc1 f8N Qe4 Bd3 Qc3+ Ne5 Rc1 Rd1 h1Q Qb1 Qeg2 Rd2 Rh7+ g7 Qe1 g6 Ra8 a7 Rb8 a8R Rh2 Kf7 Qee2 Kg8 Ke7 d8N Nd4 d6+ Ke8 Ndc6 Qeg4 Na7 Ne6 d7+ Kd8 Rc2 Rg1 Rd2 Nc1 Rc2 Ke7 d8N Ne2 Ndc6+ Ke8 Nb4 Kd8 Nfd7 Re1 Nf6 Ng1 Nfd5 Rc1 Ne7 Q4h3 Qb2 Ra1 Qb1 Ra2 Kf7 Qhg4 g8B Bf6 g7 Bh4 Rc5 Be1 Bgh7 Q4h3 Kg8 Qf5 N3b5 Ra6 Kh8 Bd7 g8B Bc6 Ra2 Bf3 Rc2 Be2 Na3 Bf1 Rb5 Bd2 Nac8 Qfh3 Ra7 Ra8 Bf7 Ra4 Raa5 Ra6 Na7 Nf4 Bd5 Qc8 Na2 Ne6 Rbb2 Qb3 Rb5 Ba5 Nb4 Qc3 Ra2 Ng7 Rd2 Ne6 Rac2
2Q1BRk1/prR3q1/3q1rnq/2PRBr2/1Q4b1/B2BB1N1/B2bp3/K2N2n1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 d5 Kc2 e5 b4 h5 Kb2 e4 f4 h4 g4 d3 f6 d2 g6+ Ke8 f5 e3 g7 Kf7 b6 d4 b7 h3 g5 h2 b5 d3 g6+ Ke8 f7+ Ke7 b6 Rh3 f6+ Ke6 Nc3 Rg3 Nge2 Rg1 Ng3 Bb4 f8B Nd7 b8B Bc5 b7 Qe7 f7 Ne5 Qb3 d1Q Ra5 d2 Ka1 Nf3 Be5 Bb4 Bd3 e2 b8Q Rf1 Rd5 Ng1 c5 Ba5 Q3b4 Rf5 Q8b7 Bd7 Qc8 Qf6 Bfd6 Ne7 g8B Rb8 g7 Ng6 f8R+ Qf7 Bf4 Rb7 Bde5 Ke7 Be3 Rf6 Kb2 Bg4 Ka1 Rf5 Bh7 Qf6 g8B Qg7 Bf7 Rf6 Bb1 Rf5 Ba3 Qc1 Nce4 d1Q Be8 Qd3 Nc3 Qd4 Rd8 Qd6 Nd1 Qcd2 Ba2 Rf6 B3d4 Qdh6 Be3 Rf5 Qd4 Bd2 Qb4 Nh3 Rf1 h1R Rf3 Ng1 Rf2 Qb8 Rd5 Qd6 Rf6 Rh3 Re6+ Kf8 Re7 Rf6 Rc7 Rh5 Rf1 Rhf5 Rf4 Nh4 Bhg6 Kg8 Rf1 Rg5 Bd3 Ng6 Rf3 Re6 Rf6 Rf5 Rff7 Ref6 Rf8+
1n1rN2B/1QBB1N1N/rbRB1nR1/6n1/p4np1/1BK2b1P/qRnN4/6k1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Kd7 Kd2 Kd6 e4 f5 b4 g5 b6 a5 h6 c5 h7 g4 b5 f3 b7 a4 b6 c4 e5+ Kd7 d6 Kc6 d5+ Kc5 d7 Kd4 d6 f2 e6 f4 e7 f3 e8B Qh4 d8N Nd7 b8N Ra6 b7 Ndf6 d7 Bc5 Nh3 Bb6 Nf7 Ne7 d8B Nc6 Nd7 Nb8 Bc7 c3+ Kc2+ Ke4 Bc4 f1N Bb3 f2 Ba3 Ke3 Bad6 Ng3 Nhg5 f1N Qd5 Kf2 Nd2 Nge4 Rc1 Ne3+ Kd3 Rg8 h8B c2 Nh7 Ng5 Kc3 Qh3 Qb5 Qg2 h3 Qd5 Rhf1+ Kg2 Rf4 Qe6 Rc4 Kf2 Rb1 c1N Rb2 Kg1 Rc6 Nc2 Qd5 Nd3 Qe4 Nh5 Ndf6 Ndf4 Bd7 Rd8 Ne8 Nf6 Rc4 Nc6 b8R Bb7 Rc8 Nb8 Rc6 Bc5 Qb4 Qe2 Rb6 Bf3 Rc6 Qg2 Qb7 Bb6 Bf8 Ng8 Rg6 Nf6 Bb4 Qf1 Bbd6 Qb1 Be5 Qa1 Bcd6 Qa2 Rc6 Na1 Bc7 Nc2 Bed6
2N3Rr/3n1nn1/q2N4/1n1RNPpB/1k2Nb2/2NRnNB1/Qr1p4/3b1QK1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 Kd7 Kf2 Kd6 c4 g5 f6 e5 f5 e4 b6 a4 f7 d3 h6 d2 b7 d4 b5 Kc5 b6 a3 h5 a2 h7 d3 h6 Na6 b8R Qf6 b7 Be7 f8Q Ra7 Rh3 Qe6 Be2 Bd7 Bh5 Qc6 Qf1 Kb4 c5 Nc7 Qf7 Nb5 Nc3 Nf6 Nf3 d1N+ Kg1 e3 Rg8 e2 b8N e1N Bf4 d2 Bg3 Qa6 c6 Nd3 c7 Ne8 c8N Ne3 Re1 a1N Qa2 Be6 Nd7 Ne5 Nc5 Nb3 N5e4 Nc5 Re2 Bb3 Re1 Nd5 Re3 Bc2 Rd3 Ne3 Rd5 Ncd7 Rg6 Rg8 h8N Bd6 h7 Rb7 Nf7 Bd1 h8N Bc7 Nfd6 Ng7 Nhf7 Rh8 Nc4 Rb6 Nfd6 Nf7 Nce5 Ne8 Rg8 Ng7 Ng4 Rb8 Nb7 Bf4 Nbd6 Rb7 Nge5 Rc7 Na4 Rc2 Nac3 Rb2 Nh2 Ne6 Bf2 Nc2 Rhd3 Ne3 Nhf3 Ng7 Bg3
NbQ4b/2n3rN/R3n3/k1b1Bpp1/qb3Q2/2B1R3/RbBK1P1R/RrR5 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 e4 Kd7 d4 Qe8 e5 Rh7 d6 Ke6 d5+ Kf5 e6 Kf6 Ne2 Bd7 exd7 Qd8 Ng1 Rh8 b4 Ke5 h4 a5 b6 c5 b5 f5 h5 c4 b7 c3 h6 a4 h7 g3 b6 a3 Qd3 g2 Qd2 c2 Nh3 g1B Bd3 Kd4 Ng5 Kc5 Nc3 Kb4 Qf4+ Ka5 Bd2 c1B Bc2 Nc6 b8B e5 b7 Qe8 d8R e4 d7 e3 Be5 a2 b8Q e2 d6 Nge7 Qc8 Rg8 h8R Bb2 Nh7 Rb8 Na4+ Rb4 Rh6 g5 Bdc3 Nd5 Kd2 Bh2 Nb6 Nc7 Na8 Rg7 Rh3 Nd4 Re3 Nde6 Rc1 Qf7 Re8 a1B d8R Qh5 d7 Bc5 Ref8 Qf3 Rf6 Qe4 Rdf8 Qc6 d8R Qa4 Rh6 Bg3 Rhh1 Bh2 Rf6 Bg3 Rd6 Bh2 Rh6 Bg3 R6h2 e1B+ Ke2 Bd2 Ra6+ Kb5 Rd8 Rf7 Bg7 Re7 Be4 Ba3 Bcf6 Bdc3 Qd6 Nd5 Rb1 Rb3 Rhc1 Bc3b4 Bh8 Bac3 Ra1 Rb1 Qe5 Rf7 Qd4 Bc7 Qe5 Re7 Qf4 Bb8 Bhg7 Ndc7 Rd2 B3d4 Rda2 Bab2 Bc2 Rd7 Bh8 Be5 Bd8 Bg7 Bf6 Re7 Bc3 Bgd4 Rb6+ Ka5 Kd2 Rf7 Be5 Rd7 Bd6 Bh8 Rc6 Re7 Be5 Rg7 Ra6+
kr1b2BR/Rb4N1/2b2NK1/PR1Q2pn/Bbq3b1/1B2rNBp/7N/n3B3 b - - 0 1 illegal: No possible last move, all moves rejected
R1BQknBK/nN2B1rN/1pP4N/1pRb1q1R/B6b/1b4b1/5r2/1R1Bb3 b - - 0 1 illegal: No proof kernel
3BB1Q1/K1n1rP1b/1BB3B1/1br5/pk1B2bb/b2pQ2q/R5nN/N1Q2R2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Kc4 d5+ Kc5 Kd7 g4 h4 f4 d3 b4 h3 c4 d2 b6 h2 g6 a4 b5 d4 b7 d3 g5 Qa5 g7 Qa7+ b6 Rh7 f6 Nc6 b8Q Qb7 f7 Nd8 g6 Qa6 f5 Rh4 f6 Ke6 b7 Rg4 Qe5+ Kd7 b8B Nc6 Bc7 Nb4 Bd8 Rg3 Nf3 Rg5 Na3 Qe6 Ra2 Nd5 Nc2 Ne3 Bb2 Ng2 Qc1 d1B Na1 Ba6 Bd4 Qh3 Kb6 Ra7 c5 Bb5 Qee3 e5 c6+ Kd6 c7 e4 c8B Ne7 g8B Rc5 g7 Rac7 Bb7 Nd5+ Ka7 Re7 Bh7 Nc7 g8Q Be2 Rg1 h1B Nh2 Bg4 Bc8 Kc6 Bd7+ Kd5 Be8 Kd6 Qe2 e3 Bg6 Kd5 Qed2 e2 Qe3 e1B Be2 Bh4 Rf1 Rc3 Bd1 Kc4 Bf3 Kb4 Bb6 Rc5 Bfc6 Bh6 f8B Bg7 f7 Bb2 Ba8 Ba3 Bae4 Ne1 B4c6 Be4 Bh6 Ng2 Bg7 Bef5 Bd4 Be4 Bh5 Bh7 Bg6
1N4B1/2Q1PRpn/3n2k1/nQ2b2q/2N2r1Q/B2pQRnK/NQ4r1/Qb2n3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kg3 f5 c4 Kf7 b4 d5 e4 d3 h4 d4 b6 d2 e6+ Kf6 e5+ Ke7 b5 f4+ Kh3 f3 b7 f2 b6 a4 h6 a3 h7 a2 c5 Nd7 b8Q Qe8 h5 Qg6 h6 Qg5 c6 Ra7 b7 Ra4 c7 Ra7 Nc3 Qg6 Ba3+ Nc5 Bc4 f1N Nf3 Ng3 Rf1 Ra4 Rf2 Bd7 c8Q Nf6 Qcc7 d3 Qe2 d1N Qe3 Nb2 Raf1 a1N Nd2 Nc2 Rf3 Ne1 Na2 Qf7 Bb3 Rf4 Nc4 Qg6 Qa7 Ke8 b8N Bd6 R1f2 Ba4 e7 Kf7 Qab7 Rc8 h8Q Nh7 e6+ Kf6 e8Q Nce4 e7 Be5 Qa6+ Nd6 Qeb5 Qe8 Qg8 Kg6 Qgd5 Qh8 Qdd4 Rcf8 Qc3 Rg4 Qab6 Rff4 Qcc1 Rg5 Qa1 Qe8 Na5 Rgg4 Bg8 Bc2 Nc4 Bb1 Rf1 Na4 Qbb2 Nc5 Q6b5 Nb3 R1f2 Na5 Rf1 Nf8 h7 Qf7 h8Q Rg5 Qh4 Nh7 Qee2 Rgg4 Qed2 Qf5 Qe3 Qh5 Qc2 Nge4 Qcc1 Rg2 Qcb2 Ng3 R1f2 Rd4 Rf7 Rf4 Rf3
1RrRqR2/nN6/2Q1RB1k/3n1Rbb/rPn3B1/1n3p2/Q2r1BpR/4N1K1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 e4 a5 b4 f5 d4 Kf7 h4 Kg7 b6 c5 h6+ Kg6 d6 a4 e5 f3 b7 g4 h7 f4 d5 c4 d7 c3 d6 c2 e6 a3 h5+ Kg5 h6 a2 e7 Na6 e8Q Qa5 d8B+ Ne7 b8R Qc5+ Be3 c1R d7 Qe5 Qe2 Rc2 Bh3 Nc7 Nd2 Nd5 Re1 a1N Nb3 Rd2 Rh2 Ra4 Nc5 Nb3 Nb7 g3+ Kf1 f2 Bg4 Rg8 h8R Bg7 h7 Bh6 Kg2 f1N Bf2 Nfe3+ Kh1 Nc4 Nf3+ Kf6 Kg1 Kg7 Rh5 g2 Rf5 Nc6 Bg5 Qe3 d8R Na7 Qc6 Qe8 Bf6+ Kg6 Qee6 Bg5 Ree5 Kh6 Ne1 f3 Re3 Rg7 Rf8 Re7 Qg8 Rc7 Re7 Bd7 Qge6 Rc8 h8R+ Kg6 Qe2 Be6 Rh2 Bf7 Bh5+ Kh7 Re6 Kh6 Bg4+ Bh5 Nc5 Rd3 Qa2 Rd2 Nb7
3Q1NRn/Nbb2NK1/3b3B/4N1Q1/Rp2NRb1/1kqr2pn/2Pr2N1/n2B4 b - - 0 1 illegal: Other
6Q1/1b2N1n1/1N2R1n1/R1rb2pR/n1B2kP1/pBqrQrRK/2rB2R1/R7 b - - 0 1 illegal: No possible last move, all moves rejected
K1k1r3/2BN1Q1Q/2R3n1/N1Np1qN1/1r2pbR1/1bn2Q1N/2B1rNP1/1nr5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 h5 Ke4 e5 Kd5 d6 f4 Kd7 b4 d3 c4 e4 f6 a4 b6 a3 g6 h4 f5 a2 b5 d2 g7 h3 c5 h2 c6+ Ke8 f7+ Ke7 b7 Qc7 b6 Kd8 f6 Rh6 Nh3 Qe7 c7+ Kd7 Nc3 Ra4 Bd3 Rb4 Bc2 Rc4 Qf3 d1N Bf4 Nb2 Rac1 a1R Nd1 Ra3 Ndf2 Nc6 b8Q Rb3 b7 Rbb4 Qa7 Rh8 Rhf1 Nh6 g8Q h1R Qh7 Ng4 Be5 Bh6 f8N+ Ke8 b8N Na4 Bg3 Nd4 Nfd7 Qf8 Nc5 Nb5 Kc6 Nbc3 Nd7 Bf4 f7+ Ke7 Qb7 Nb1 Qa7 Ba6 c8N+ Kd8 Ncb6 d5 Bh2 Rd4 Nc4 Kc8 Na5 Bc4 Bg3 Rd2 Bh2 Qd8 f8N Qf6+ Nfe6 Qf5 Neg5 Nac3 Qf7 Re2 Bg3 Bb8 Bc7 Bb3 Qb6 Rg1 Qg3 Rd4 Na6 Ba7 Bd1 Na2 Nd3 Bc2 Rf4 Rge1 Qf3 Rb4 Ndf2 Bb3 Rc5 Nac3 Bc2 Rc1 Qh7 Nh6 Rg4 Nf7 Rc4 Rf8 Qd4 Rg8 Qdg7 Nh8 Qf7 Be3 Rc5 Bf4 Rc4 Ra4 Kb6 Rb4+ Ka7 Rd8 Ka8 Re8 Rc6 Ng6 Nac5
nN3R2/3N2N1/2B1rBq1/1P1R3p/K2nb3/1BQ1N1br/3pRN2/k2rRbr1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 d5 c4 h5 Kc2 e5 Kb3 a5 g4 e4 f4 e3 f6 Ke6 c5 d3 c6 e2 g6 e1R f5+ Ke5 g5 Kd4 f7 d2 f6 Qe8 b6 Qe3+ Nc3 Bg7 f8N Rh7 b5 Ra7 f7 Na6 c7 Qe8 b7 Bf5 b8N Be5 c8N Rh6 g7 Nc7 g6 Ne7 g8R Na8 g7 Re6 Nh3 Be4 Nf2 Bg3 Nfd7 Nc6 f8R Qg6 Bg2 Rg1 Qc2 d1B Ra2 Be2 Ka4 Bf1 Bg5 Kc4 Rd8 d4 Ne7 d3 Nf5 Nd4 Rgf8 Raa6 g8B d2 Ra3 Rc6 Ng7 Rc5 Rh2 Rf5 Qb2 Rf3 Bf6 Re3 Ra1 Rd3 Ka3 a4 Re1 Rf3 Nd1 Kd3 Nd5 Re3 Qa1 Kc2+ Qc3+ Kb1 Kb4 a3 Ka4 Rf3 N5e3 a2 Bf7 Rf2 Bh1 Rf3 Rhe2 a1R+ Kb4 Ka2 Nf2 Rd1 Ka4 Bd6 Bg8 Rh3 Bf3 Bf5 Bc6 Bg3 Ne5 Bb1 Rd5 Be4 Ned7 Kb1 Rf5 Rd6 Bb3 Re6 Qc4 Kb2 Rd5 Ka1 Qc3+
B1N1r1N1/2R1b3/nn2BR2/Kpq2b1Q/QRr2RB1/kP1RRr2/3p2br/8 b - - 0 1 illegal: No possible last move
B3br2/2NQ1Q1K/2QRnr2/p1Qr4/Q2B1bP1/5q2/2pBrQ1n/1RN3kb b - - 0 1 illegal: No possible last move, all moves rejected
Q2n1Q1R/b2rN2R/NN4Np/Kp2P1rn/b2N4/1Nrq2Bb/6Bb/1k2Q3 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 a4 Kd7 g4 c5 d4 f5 Kd2 b5 e4 b3 Kc3 b2 a5 f4 e6+ Kd6 g6 f3 e7 f2 e8N+ Kd7 e5 c4 a6 Qc7 g7 Ke7 Kb4 c3 g5 c2 a7 Qb7 g6 Qc6 d6+ Ke6 d5+ Kf5 Qe1 Qc4+ Ka5 Be7 d7 Qd3 d8Q Nf6 g8N Bc5 d6 Nh5 Bg2 f1R g7 Rf3 Ne2 Ke4 Nc7 Bh3 Bf4 c1B Bg3 Bf4 Ne7 Rg8 d7 Bd4 Ng6 Nc6+ Ka6 Bg1 Qf8 Rd8 a8N Ba7 Nd2+ Ke3 Rc1 b1B Nb6 Bc2 Rb1 Ba4 Nb3 Qd6 Ned4+ Kd3 Rb2 Re3 Rd2+ Kc3 Rd1+ Kb2 Rh2 Rc3 Rd3 Re8 d8Q Re7 Qa8 Nd8 Ka5 Rd7 Na6 Qd5 Rf3 Qc4 Rh1 Qd3 Rf2+ Bd2 Rf7 Bf4 Bf2 Bh2 Bg3 Rh8 g8N h6 Rh7 Ka2 N8e7 Rg8 Rf1 Rg7 Rf7 Rg8 Rh8 Rg7 Nh4 Rg5 Nhg6 Kb2 Rfh7 Ka2 Qee4 Kb1 Qe1+
B2KnB1n/b1N1N2n/3R1P2/Rp1N2q1/4k3/pr1N2b1/b4NQ1/QQr1n1N1 b - - 0 1 illegal: No possible last move
1k1r1R2/B5r1/Q1R1P3/2B1K3/Q1BB2NB/npb2p1b/nBq5/1rr1NnQ1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 h4 f5 e4 b5 a4 c5 d4 Kc7 e6 g4 Kf4 c4 h6 g3 h5 c3 e7 g2 e8Q b3 e5 b4 d6+ Kb7 d7 c2 e6 b2 d5 b3 h7 Qh4+ Ke5 f4 d8B f3 h6 Qg4 a5 Na6 d6 Nc5 d7 Qb4 a6+ Ka7 Bb6+ Kb8 d8B Nb7 Qa4 Qe7 Bc4 Qd7 Na3 b1R Bce3 c1N Nh3 g1R Bec5 Qd2 Bh4 Na2 Nf2 Ne7 Ng4 Ra7 Nc2 Nd6 Ne1 Nb5 Rh2 Qd3 Rc2 Nf5 Rc3 Rg8 h8B Na3 h7 Rag7 Rc2 Ng3 a7+ Kb7 Qc1 Nf1 Qe3 Rh1 Qg1 Bd7 Rc3 Bb5 Rc2 Be7 Rc1 Rb8 a8Q+ Kc8 Rc3 Qc2 Q8a7 Ra8 Q7a5 Kb8 Qa6 Rg6 B8f6 Rg7 h8B Bf8 Rd3 Rc1 Rd6 Be7 Rc6 Bf8 Bd4 Bb4 Be7 Bc3 Bec5 Rb1 Bd5 Bd3 Bc4 Bf5 Ne3 Bh3 Ng4 Rb2 Rd1 Rb1 Rd3 Ba1 Bb2 Rc1 Rd7 Rb1 Rf7 Rc1 Bbd4 Bc3 Rf5 Raa7 Rf7 Rd7 Rf8+ Rd8 Qh2 Rh7 Kf6+ Ng3 Nd3 Be1 Ba1 Rd1 Bb2 Rb1 Bg7 Rf1 Qg1 Ba5 Bh8 Rfc1 Ne1 Nf1 Bg7 Qd2 Kf5 Bc3 Bgd4 Rg7 Ke5 Qc2 Ba7+
N2Nn1Nb/N2q2Nn/1k1bp1bB/3B3r/R1QP1p2/1KN4n/2Q1b1R1/r1Q5 b - - 0 1 illegal: No proof kernel
1b1NNRnR/q2R1B2/kN2pNr1/1PB3Q1/6pb/r1nN1n1n/R3b3/K2B4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 h4 d5 f4 Kd7 b4 Kc7 c4 Kb7 Kc2 g5 Kb2 d3 h6 a4 b6 d4 f6 g4 h7 d2 h5 d3 f5 Be6 f7 Bg7+ f6 Na6 f8R Qc8 h6 Qb8 c5 Bd7 Nf3 Qg3 Na3 Rd8 c6+ Kb8 b7 Ka7 b8N Nc7 Ne1 Na8 c7 Bb5 c8B Rd4 f7 Qc7 Be2 Ba6 Ra2 Bf6 Ka1 Bh4 Be6 Nb6 Nc4 a3 Nd6 Nc4 Nd7 Ne5 Nb6 Nf3 Ne8 Rd6 Qb3 d1N Be3 d2 Bc5 Bd3 Qd5 Nf2 Bd1 Nh3 Qg5 Be2 Nd3 Ka6 Bd5 Rg6 Rf1 Ne1 Rf6 Qd7 Rd6 Qa7 Rd7 Nf3 Be6 Nf6 Beb3 Rhg8 h8N e6 h7 R8g7 Bd5 Ng8 Be4 Rf6 Bg6 Rf4 Bb3 d1N Bh5 Nc3 Bd1 Nb1 Ng6 Rd4 h8R Nc3 Ne7 Rg6 Nc6 Rc4 Nd8 Re4 Qh6 Re3 Qg5 Nhg1 Re7 Ne5 Nf4 Re4 Rd2 a2 Bd6 Nh3 Bc5 Rh6 Bg6 Rc4 Nd3 Nf3 Rb2 Nd5 Rc2 Ngf6 Rfg8 Rc3 f8N Ra3 Bf7 Nc3 Nh7 Rg6 Rf8 Ng8 Rd7 Nd5 Kb2 a1B+ Kb1 Bc3 Nhf6 Be5 Ra2 Nc3+ Ka1 Bb8 b5+
b1r1k3/1NRNN1nB/3pRKp1/1bB1Q1N1/3q4/1B2P3/B1R1nbrb/r5B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kg3 f5 Kf4 d6 c4 a4 b4 d3 h4 d2 h6 a3 h7 a2 c5 Be7 h5 Nf6 Kg5 f4 c6 f3 e6 f2 c7 Ra5 h6 Bb7 c8B Rf8 h8N Ra6 b6 Ra3 b5 Rf7 h7 Rc3 Ba3 Rc2 Bc5 Ba8 b7 Qd7 b6 Qc6 Nc3 Nbd7 b8B Bb7 Ba7 Ne5 Nf3 Bf8 e7 Nfd7 Nd5 Nd3 Rh6 Qa4 Re6 Ne1 Rc1 Rc3 Rc2 Ba8 b7 a1B b8N Nd3 Qe1 Rf6 Nf7 d1R h8R Nc1 Rh7 Qd4 Nd8 Rg6+ Kf5 Rg4 Nb7 Rg2 Ng5 Nf6 Nd7 Nh5 Bab6 Rc4 Qc3 Re1 Qg3 Bc3 Qe5 Bd2 Ba7 Bf4 Bab6 Bh2 Kg6 Rg4 Bg2 f1B Be4 Rg2 Ba7 Qc3 Bg1 Rc7 e3 Ne2 Bc5 Qd4 Bd3 Rc1 Bc4 Rb1 Ba2 Ra1 N7b6 Nc3 Rf6 Na4 Bf5 Rc8 Re6 Bg3 Nh3 Nc3 Bd3 Be2 Bdc4 Bf1 Bcb3 Bb5 Kf5 Ne2 Kg5 Kf7 Kf5 Bh2 e8B+ Kg8 Bg6 Be7 Nc3 Kf8 Ncd5 Bh4 Ng5 B4g3 Bf7 Be1 Bg8 Bf2 Kg6 Nhf4+ Kf5 g6+ Kf6 Re8 Rc7 Rc8 Ne7 Ke8 Rd2 Ng3 Nd7 Nfe2 Bh7 Nf5 Rb2 Ng7 Rc2
N1R2Kn1/5NRR/2pB4/1Qr4r/1RBn1rPq/n3p2k/b2nRQ2/4BRb1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 a5 Kf4 h5 Ke5 a4 d4 e6 g4 a3 b4 h3 f4 c6 b6 h2 b5 h4 b7 h3 f6 a2 b6 Qe7 d6 Nh6 f5 Qe8 f7 Qe7 f6 Ra5+ d5 Ra8 Bc4 Ra4 Na3 Na6 b8Q Bb7 Qe1 Rh7 Bd2 Ng8 Nf3 Nc7 Nb5 Rh5+ Ng5 Bc8 b7 Qd8 Rc1 a1N Rc2 Nb3 Qf2 Nd4 Be1 Bh6 Rf1 h1N f8B h2 f7 Ng3 Re2 h1R Be7 R1h4 f8R Ne4 Rf7 Nd2 Rg7 Rh3 Rh7 Rc3 Bf8+ Qe7 Rg7 Kd8 d7 Qf6+ Kd6 e5+ Kc5 e4 Bd6 Qf3 Rh7 Qg3 Rg7 Qh4 Rh7 Na8 Nc7 Nb6 Na8 e3 Be5 Rc1 Nf7+ Ke7 d8R Bf4 Bd6+ Kf6 Re8 Bf5 Rc8 Bb1 Rg7 Ne7 Rh8 Ba2 Rhh7 Rb4 Qe8 Ng8 b8R N2f3 Qe4 Bh2 Qb1 Bg1 Qb3 Ra4 Qb5 Rc3 Bf4 Nd2 Kd6 Nc8+ Kd7 Na7 Ke8 Rb4 d6 Rc1 Bd3 Rcc5 d7 Rbc4 d8R Rb4 Qc4 Nab5 Kf8 Na3 Qb5 Qh3 Bc7+ N4f3 Rd7 Rf4 Rc8 Nd4 Bd6 Qh1 Ra7 Qh3 Ra4 Qh2 Ne5 Qg3 Bg6 Kg5+ Nf7+ Kh4 Rb4 Kh3 Bd3 Qh4 Bc4
R1bNnr2/1R1BK3/2pn1r2/BB2P1pn/1R3Q2/3n1B2/3QNrkb/3B1qB1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 Kf2 Ke7 Ke3 f5 Kf4 b5 Kg5 g3 d4 b4 e4 b3 h4 f4 a4 f3 h5 b2 e6 Kd6+ e7 g6 e5+ Kd7 h6 g2 a6 f2 d6 Kc6 d5+ Kc5 h7 Bd7 a7 Bc6 a5 Qd7 e8B Bg7 a6 Bf8 Be3+ Kb4 Qd2+ Kb3 Nf3 g1N Nc3 b1N Rh4 Na3 Bb5 f1R Ne2 Qf7 d7 Nf6 d8Q Rf2 d6 Nh5 d7 Bb7 Qf6 Bc5 d8B Nd7 Qf4 Rf8 h8R Bc8 Rh7 Ndf6 Bed7 Nc4 Ra5 Rb8 a8B Nd6 a7 Nfe8 Be4 Qc4 a8B Rf6 Bef5 Bd4 Bd5 c6 Bg4 Bc5 Ra8 Nh3+ Kh6 Ba7 Ba5 Bd4 Rf7 g5+ Kh7 Bb6 Kg8 Ba7 Kf8 Bc5 Qg3 N3f4 Ke7 Nd3 Be4 Qc1 Qf4 Qf1 Bh7 Rg2 Bg1 Rf2 Qdb4+ Kc2 Nfd4+ Kd1 Ne6 Be3 Nd8 Bd2 Bhf5 Ke1 Rh7 Qg2 Bfe6 Kf1 Bb3 Qh3 Rg7 Kg2 Bd1 Be3 Qd2 Qh1 Bh2 Qf1 Bg1 Bc5 Rh3 Bb6 Re3 Bd4 Re4 Bb6 Rb4 Be3 Qd4 Bf4 Rh7 Bg3 Q4f4 Bh2 Bde6 Nc5 Nf7 Ba6 Kf8 Rb7 Bef5 Nd3 Bc8 Rh6 Nd8 Rg7 Bce6 Bc8 Bef5 Rgg6 Rb7 Rh8+ Ke7 Rf6 Bd7 Rhf8 Bf3+
5bb1/BrQ2r1n/Np6/B4R1Q/2q1bBBN/1bPr1p2/k2R3B/2Qn2BK b - - 0 1 illegal: No possible last move, all moves rejected
RB3Q1n/1Nb1bq2/1p3BP1/n2b3n/1rk2R1B/2NN3b/K1p1NN2/1B1R3r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 c5 g4 e5 d4 h5 Kd2 h4 Kc2 b6 Kb2 b3 d6 h3 f6 Ke6 d5+ Kd7 f7 h2 f5 e4 f6 e3 g6 c4 g7 e2 a5 e1B a6 Qc7 a7 Rh3 g5 Be7 f8B Nh6 g8N Bb7 f7 Qc6 g6 Bg3 Bf4 Qc8 Ra4 Be1 Nc3 B7h4 Bd3 Beg3 Nge2 Nc6 Qf1 Qc7 Bg7 Na5 Bb1 Be7 Bf6 Rh5 f8B Nf7 Nh6 Nh8 Ng4 Rh6 Ka3 b2 Nf2 Re8 Rg1 h1N a8R Bh2 Ka2 Ng3 B4g5 Nh5 Bh4 Bc8 B8g7 Rf8 Be5 Rf4 Bgf6 Bb7 Rg3 Bc6 Rd3 Rd4 Rd1 Rf4 Nb5 c3 Rc4 c2 Nbc3 Bb7 Rcd4 Bc8 Ra4 Rb4 Beg3 Ke8 d7+ Kf8 d8N Bh3 d6 Qc4+ Ka3 Qf7 d7 Rh7 Bb8 Bc7 Nb7 Rh6 Ba2 b1B d8N Ke8 Ne6 Rh7 Nd3 Kd7 Nec5+ Kc6 N5e4 Rh6 Nef2 Rh7 Bb3 Ba2 Be6 Bb3 Kb2 Bd5+ Ka1 Bdg2 Ba2 Bd5 Bb1 Rh6 Nce4 Kb5 N4c3+ Kc4 Ka2 Rh7 Qh1 Rg7 Qf3 Rg8 Qf5 Rd8 Qc8 Rd6 Qf8 Re6 Nd4 Re1 Nde2 Rh1 Nce4 Kb5+ Ka1 Rb3 Rc4 Rb4 Rd4 Ka4 N4c3+ Ka3 Rf4 Kb3 Nfe4 Kc4 Ka2 Bc6 Nef2+ Be4 Nd4 Bd5 Nde2+
1r1rrB2/bR1rNR2/Bp3p2/1Q2B3/k2N4/1nR3B1/NPbnKR1q/5nB1 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b6 a4 Nh6 a5 Ng8 a6 Qd7 Na3 Qc6 Nb1 Qb7 axb7 Bc5 Nf3 Bd6 Ng1 Bf8 h4 Kd7 d4 a5 e4 c5 h6 g5 h5 f3 e5 a4 d6 Kc6 d5+ Kd7 h7 f2+ Ke2 c4 e6+ Ke8 e7 Kd7 e8R a3 h6 a2 Nf3 c3 Re3 g4 Qa4+ Nc6 b8R g3 Nd4 g2 Qb5 g1Q Rh2 c2 Rc3 Nf6 Bf4 c1R Bg3 Rd1 Rg2 Rg8 h8B Qh2 h7 Ne4 Bhe5 Nd2 h8B f6 Bg7 Be7 Bf8 Bd8 Rb7+ Bc7 Rc1 Rb8 Nc3 Rh8 Rc2 Rg8 Rac1 a1R Na2 Rg7 Rc3 Re7 R1c2 Re8 Rg1 Kd8 d7 Na5 Rg2 Bd6 Rcc7 Nab3 R2c3 Rac1 Bh6 Ke7 d8N+ Bd7 Be3 Ra1 Nc1 Raa8 Na2 Ra7 N8e6 Raa8 Nf4 Kd8 Ng6 Bf5 Rf7 Bc2 Ne7 Bc7 Ndc6+ Kd7 d6 Rbd8 B3d4 Rab8 Bc5 Ke6 d7 Bd6 Nc8 Kd5 Nd4 Bc7 Ke3 Bd6 Bd3 f1N+ Ke2 Ra8 Rf2 Bb8 Qa4 Ba7 Ba6 Rb8 Qb4 Re7 Qb5 Rde8 d8B Rd7 Bde7 Rdd8 Bf8 Rd7 Qa5 Rdd8 Ne6 Kc6 Qb4 Rd7 Qb5+ Kd5 Rc4 Rdd8 Rc3 Nf3 Rg2 Rd4 Qb4 Kc6 Qa5 R4d7 Bg1+ Nc5 Rf2 N3d2 Bc4 Ncb3 Qa6 Rd6 Nd4+ Kc5 Ne7 R6d7 Nc1 Kb4 Bd3 Qh8 Qc4+ Ka5 Na2 Qh2 Qd5+ Ka4 Ba6 Rdc8 Qc5 Rcd8 Qb5#
1b2qk2/bN3Q2/P1nBBK2/bn1b4/3NNR1R/1nQN4/prpR3N/1N2r3 b - - 0 1 illegal: No possible last move
4KR2/QR5n/p3b1Rr/1NNQ2RP/2b1Bk1B/p1r5/BbrR2R1/n3b2q b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Nh6 fxe5 Ng8 a4 bxa4 Kf2 Kd7 Kg3 f5 Kf4 c5 b4 g6 h4 a6 d4 c4 e4 a3 d6 Ke6 d5+ Kf7 b5 c3 h6 c2 e6+ Kf6 d7 Bd6+ e5+ Ke7 Kg5 f4 b6 f3 h5 f2 h7 Nf6 b7 Qe8 d8Q+ Kf8 e7+ Kf7 e6+ Kg7 Nc3 Nfd7 Qc7 Nf8 Bc4 f1B Nh3 Qa4 e8B+ Bd7 e7 Nc6 b8R Ne5 Rg1 Bc8 Ba2 Bc4 Nf4 Qc6 Rg2 Ng4 Rb7 Be6 Nb5 Be5 d6 Bb2 d7 Rc8 d8R Ne3 Nd3 Qf3 Bd2 c1R Bc6 Rc3 Nc5 Nc2 Be1 Kf7 Rc1 Na1 Bh4 Rc2 Kh6 g5 e8R+ Kf6 Rdd2 Kf5 Bd5 Rc3 Kg7 g4 Rd8 g3 Be4+ Kg4 R8d6 Kf4 Kf6 Qf1 Ke7 Qh1 Qb8 Rc2 Qa7 Rc7+ Ke8 Rc3 Rg1 g2 Rcc2 Rc6 R6d5 Rc7 Rg5 Rc6 Re1 g1B Rf1+ Bf2 Rfg1 Be1 Rdg2 Rg8 h8R Rg6 Qd5 Rh6 Rcd2 Nh7 Rg6 Rc1 R2g5 Rc2 R1g2 Bb3 Nd7 R6c3 Nc5 Bc4 Rf8+
n1N4B/3R2PN/2Q1p1n1/RBKnrR2/6b1/kBN3r1/pN1NnR2/bq2b3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 b4 e3 g4 e2 f5 e1B g6 h4 f6 a4 g5 c6 g7 h3 b6 h2 b5 a3 g6 Qe8 f7 Bg3 b7 Qd8 b6 Ra6 Ne2 Ra7 Nec3 Bh4 Bb2 Ra8 Bb5 Rh6 Qc2 Bg5 Rf1 h1N Rf5 Nd7 b8N Nf2 b7 Ne4 Na6 Nb6 b8N Rh5 Nc5 Bh4 N5a4 Nef6 Nd7 Be1 d3 Rh3 Nd2 Ra5 Ra2 Na8 Ndb6 c5+ Kc4 Rh4+ d4 Rh3 Rf2 Bg4 Nc8+ Kc7 Ra1 Rg3 d6+ Kb7 d7 a2 d5 Qb6 d6 Nd5 d8R e6 d7 Nh6 g8B Nf5 Bh7 Bg7 f8N Nh4 Re8 Be5 d8R Bd4 Rd1 Bg7 Ba1 Be5 Nb2 Bg7 Bc6+ Ka6 Rd7 Rb5 Ree7 Ka5 Ref7 Bd4 R7f5 Bh8 Qd3 Qb8 Qf3 Be5 Kd3 Kb4 Rc1 Ra5 Bb5 c4+ Ke4 Ka3 Qh1 Bf4 Kd4 Be5+ Kc5 Qb7 Bg8 Qb8 Nh7 Qb7 Bf7 Qb8 Be8 Qb7 Ne2 c3 Qe4 c2 Nc3 Bf6 Rb1 c1N Qg2 Ne3 Qc6 Ne2 Rd1 Qb8 Ra7 Nd5 Bd7 Ra4 Ra5 Be5 Bc4 Qb3 Bb5 Qc2 Bc4 Qb1 Bb3 Bh8 Qb7 Bg7 Bb5 Bh8 Qc6 Be5 Ra6 Ra5 Nca4 Bc7 Nd3 Re3 Kc4 Bh5 Nf1 Nb4 Bh8 Bf4 g7 Rg3 Rd2 Bh6 Nc3 Bg4 B5a4 Re5 Ra5 Ng6 Rd1 Bc1 Rd2 Nd5 Kc5 Bb2 Rd1 Ba1 Nb2 Nde7+ Rd5 Ree3 Rd7 Nd5 Nd2 Re5 Bb5+
1N3bBn/5p2/2q1B1pb/2nB1Pk1/1r3N2/bRQ1N2b/2B3rN/nNR2K1R b - - 0 1 illegal: No proof kernel
k1BRR3/n3p2b/1N2R3/b4bR1/3KB1qn/2P2p2/Nb1NRBr1/1r1nBQ2 b - - 0 1 illegal: No proof kernel
NRr1R1kq/KN1p3R/1p1N1rB1/2Qb1n2/P1r3n1/RB6/NB3N2/3nn1b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 e5 Kc4 g5 Kb5 e4 h4 b6 c4 g4 f4 g3 a4 b3 c6 e3 c7 e2 c5 e1N f6 g2 h6 b2 h5 Bg7 f5 Qe7 h7 Nf3 c6 Qe4 h6 Qe3 Bc4+ Kf8 f7 Ne5 Qd4 Ne7 Bb3 Qd2 Nc3 b1R Na2 Qd1 Nh3 g1N Bb2 N5g6 Nf2 Qc2 Qc5 Bb7 c8N Qc3 c7 Qh3 Nd6 Qg4 c8B Bg2 Ba6 Rc1 Nb7 Nh4 Rh2 Rg8 h8N Nh3 h7 Bd4 Rh1 Kg7 f8R Nbc6 Rb8 Qh5 Nf7 Bd5 h8R Rc8 Nfd6 Ne5 Re8 Qh8 f6+ Kh7 f7 Nef5 f8N+ Kg8 Rh2 Nhf3 Rh1 Rc4 Ne6+ Kh7 Nc7 Ne1 Rh2 Ng4 Rh1 Ra7 Na8 Rc6 Nd8 Rac7 Bb7 Be3 Ka6 Rc8 Ka7 Bd4 Ba6 Be3 N8b7 Bd4 Nde4 Rf6 Ned6 Kg7 Nd1 Bg1 Nf2 Nf4 Bb5 Nfg2 Bc6 N2e3 Rh5 Be6 Be4 Nd1 Rh6 Bd5 Bec2 Qf8 Rh7+ Kg8 Bb1 Ne7 Bg6 Nf5 Nc3 Nfh6 Ra3 Nf5 Re3 Qg7 Na2 Qh8 Re8+
1R2b1kN/R1p1n3/N3K1Bn/4B1b1/4n2P/B1R2pq1/2N1nN1B/BrQb1r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 g5 Ke4 f5+ Ke5 Kf7 d4 g4 b4 a4 e4 g3 h4 g2 d6 f3 b6 a3 b7 a2 b5 f2 d7 f4 d5 f3 d6 Bh6 b6 Ne7 Nh3 g1N Bd3 f1B Nf2 Re8 Na3 Be3 h6 Na6 b8N Nb4 b7 Be2 h7 Ra6 h8N+ Kg7 Ke6 Bg5 e5 Nbd5 Nc2 Rg8 Bg6 Nc3 Ba3 Ncd5 Qc1 Rc6 Na6 Bd1 b8B Nc3 Ba7 Ne4 Be3 Re8 Bf4 Rb6 Bh2 Ne2 Rg1 Kg8 Re1 N2g3 Re3 Ngf5 Rb3 Bb7 Rc3 Qa8 d8B Bc6 d7 Nh6 Nd4 Rb1 Nc2 Nc8+ Bde7 Rd8 Bec5 Ne7 Bd4 Rdb8 d8B Be8 Be3 Qa7 Bef4 Qe3 Bfg3 Qe1 Bf4 Nc8 Bf6 Ne7 Nh3 Qg3 Nf2 R1b5 Rb1 Rc5 Rb7 a1N Ra7 Nb3 Rc4 Rcb5 Qb1 Nef5 Rc6 Bf7+ Kd7 Be2 e6 Nc1 e7 Rd5+ Bfd6 Rd1 Ba1 Rf1 Rc3 Bd1 Be5 Ne2 Qc1 Rb2 Bf4 Rb1 e8R+ Kg7 Rb8 Ne7 Bfd6 Be8+ Ke6 Kg8 Be5
2n1b3/QpR2bK1/4BR2/3pr1N1/3knN1N/RBrPq1BN/3B4/1N1n2bn b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 axb4 Nc3 c4 Nd5 Kf7 Nc7 Ra7 Bd3 Ra8 Bxc4+ Kf6 Bf1 Kf7 Ke2 Kf6 Kf3 Ke5 Kg4 g5 h4 d5 f4+ Kd4 a4 e5 c4 b3 a5 e4 c5 b2 a6 b1B c6 e3 a7 e2 h6 e1N Kh5 g4 Kg6 g3 h5 g2 h7 Nf6 h6 Qe7 Qa4+ Kc5 Bc4 Nh5 d3 Ng7 f6 Ne6 f7 Qd7 f5 Qe7 f6 Ba2 Bd2 Bd7 Nb5 Be8 c7 Ng7 c8B Bb1 Be6 Nc6 Ra3 Nh5 Nc3 Kd4 Nh3 Rb8 a8R g1N Ra6 Bc2 Nb1 Ne2 Rg1 Nf3 Rc1 Nhg3 Bb3+ Ke5 Rb6 Nc3 Qa7 Bd1 Rba6 Bg7 Rb6 Rf8 h8N Kd4 h7 Rc8 Rc2 Bh6 Rc1 Bf4 Kg7 Ng5 Ng6 Be3 h8N Bg1 Ngf4 Nh1 Nhg6 Nge4 Nh4 Bh5 Rc2 Nd1 Rc1 Nb4 Rc7 Nc6 Rba6+ Qc5 Rb6 Rh8 f8B Bhf7 Bd6 Ne7 Rbc6 Rh5 Rca6 Bg8 f7 Re5 f8N Bgf7 Nh7 Qb6 N7g5 Qc5 Rb6 Qc1 Rd7 Rc3 Rc7 Nc8 Nh5 Rf5 Bg3 Re5 N5f4 Bh5 Bde1 Qe3 Bd2 Bhg6 Rf7 Bh5 Rf6 Bhf7 Rc6+ Nb6 Rc5 Nc8 Rc7+
4QNQ1/2R1nQBB/3kr2n/4QQ2/1qqq3Q/3r1bp1/1p1PB1R1/qN1K2b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kd7 h4 e5 f4 b5 h6 g5 h7 c5 d6 b3 h5 c4 a5 c3 a6 b4 f6 g4 h6 c2 a7 b2 f5 b3 f7 g3 f6 e4 Qe2 e3 Rh2 Qc7 Rg2 Be7 f8Q Qd8 f7 Bb7 Nh3 Bd5 Nf4 Qa5 Ng6 Kc6 d7 Qc5 d8Q Qd4 Qde8+ Kd6 Qg4 Be4 Qh4 Nc6 Be2 Rd8 a8B Bf3 Ra7 Rd7 Qg7 Bf8 Rb7 Nce7 Rc7 Rd8 Be4 Rd7 Na3 b1Q Bf5 Qba1 Nb1 Qa5 Bb2 Qab4 Bc3 b2 Bfd3 Nf6 Qg8 Ng4 Bf5 Bg7 f8Q Rd8 Qgf7 c1Q+ Bd1 Rg8 h8Q Qc2 h7 Nh6 Bd3 Qcb3 Be4 Q3c4 Be2 Bf6 Kd1 Rg7 Ne5 Rg6 Nd7 Bg5 Qhg8 Re6 h8Q Bf6 Bh7 Bg7 Kc2 Bf6 Bed3 e2 Qhg7 e1Q Be2 Be5 Qf5 Bf4 Qf8f7 Be3 Nf8 Bg1 Qgf6 Qef2 Kd1 Qa7 Q6g7 Qa1 Bf6 Qfd4 Q7h8 Ra8 Qhg7 Ra3 Qgg5 Rd3 Bg7 Qcc5 Qgf6 Qcc4 Q6e5+
R2Qq1qQ/rQQ3B1/br3b1N/b1b1R1P1/kn1nK3/1N1B2p1/1Q3N1p/7Q b - - 0 1 illegal: No proof kernel
1R1Bq1b1/N1R3Q1/2Nb2NR/bPR2r1B/N2Kn1pb/rN1B1q2/1n4p1/3k4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 d4 g5 b4 f5 h4 c5 d6+ Ke6 h5 Kd5 e6 Kc4 e7 a4 e8B a3 d5 a2 h6 g3 h7 g4 d7 g2 d6 Nf6 b6 Nh5 b5 Ba6 b7 Nc6 b8R Ng3 Nd2+ Kc3 Nb3 c4 Rh6 Ne5 Bh5 Bc8 Qd4+ Kc2 Qb2+ Kd1 Kd4 c3 e4 c2 Bg5+ c1B Bd3 f4 Ne2 Qe7 d8N f3 d7 f2 Nc6 f1Q d8N Qe8 Na7 Qf3 Ndc6 Nc4 e5 Ne4 e6 Bd6 e7 Rf8 h8N Be6 Ng6 Rf5 Rc8 Bf7 Rc7 Bg8 Rb1 a1B Nc3+ Ke1 Na4 Kd1 Qc3 Bb2 Bf6 Bba3 Rb2 Bab4 Rc2 Ba5 Qa1 Nb2 Rc5 Nc4 Qb2 Bg5 Qc3 Bh4 Qb2 Qf7 e8R Qf8 Rb8 Qe8 Qc3 Nb2 Bd8 Bb4 Nc8 Ra6 N8a7 Ra5 Nb6 Ra3 Na4 Ba5 Qc4 Bde7 Qf7 Bd6 Qg7
2K1RQqr/1N2b1BN/1R2N2N/P1p3R1/2nR1qr1/nn2nB2/2k1pB2/4R2b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 b5 Kc5 Ke5 h4 Ke4 d4 e5+ d6 g5 f4 c6 a4 b3 d5 g4 h6 g3 h5 b4 a5 b2 f6 b3 f7 g2 h7 Qe7 Kb6 c5 d7 Qe6+ Kc7 Ba6 d8N Bb5 d6 Qf5 d7 Qg4 h6 Nc6 f5 Ba4 f6 Ra6 Na3 b1N Ne6 b2 d8R Qe2 Qd6 Qd2 Nf3 g1N Nfg5+ Ke3 Nc4+ Kf2 Kc8 Ke1 Bg2 Kd1 Bf3+ Kc2 Rh5 Qf4 Be3 e4 Bf2 Be7 f8N e3 f7 Na3 Re1 b1Q Qb8 e2 Nd6 Qb6 Nb7 Nf6 Rd4 Ng4 Qd6 Nce5 Qb8 Rg8 h8R Qb3 h7 Ra8 Rh6 Rg7 Rg8 Bc6 h8R Ne3 Nfh7 N5c4 f8B Rg6 Nf7 Rg4 Bg7 Bd5 Bh1 Nf3 Rf6 Qa2 Nh6 Nfd2 Bf3 Nb3 Re8 Bc6 Rhg8 Rh4 Bg4 Bh1 Bf3 Rg4 Rg6 Qa1 Rg5 Qc3 Rgf8 Qd3 Rf6 Qg6 Nef8 Qf7 Rb6 Qg8 Ne6 Qh8 Kd7 Qe4 Rf8 Qf4 Qe8 Rc8 Qf7 Rc6 Ra8 Rc8 Rb8 Rg8 Re8 Rf8 Kc8 Rg8 Be5 Qg7 Bf6 Rh8 Qf8 Qg8 Bg7
B1Nb2Nn/Q2k3q/r1RnNBBp/3B4/1Pr1N1b1/3p2q1/R1b4R/N4Kb1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 f4 d5 g4 e5 b4 h6 g6 a4 c5 e4 f6 e3 f5 e2 c6 a3 b6 d3 b7 d4 g7 a2 c7 Ra6 f7+ Kd7 f6 Re6 g5 Be7 f8N+ Kc6 g6 Qd6 f7 Re5 Nc3 Qd8 Qa4+ Kd6 Nd7 Bf6 f8N Rh5 Bg5 Ne7 g8N Na6 b8R Rh4 g7 Ng6 Nb6 Nc5 Qa7 Ne4 Bg2 Qe7 Rh2 Bg4 c8B Qf7 Bf5 Bd8 Rc1 a1B Nf3 Rh7 Ne6 Nh8 Nd2 Qb7 Nbd5 Kd7 Bg6 Nd6 Nb3 d2+ Kf2 d1B Ra8 d3 Bf6 Bc2 Nde7 Qc7 Ne4 Bd4+ Ke1 Bg1 Na1 Rh5 Nc8 Ra5 Bh1 Ra6 Bf3 Bb3 Rc6 Bc2 Nge7 Qb7 g8B Qc7 B8f7 Rg7 Ng8 Qb7 Bh5 Rg5 Bhg6 Rc5 Nc7 Rc3 Bd5 Rc4 Ne6 Qc7 Rh3 Bh2 Kf2 e1Q+ Kg2 Bg1 Rh2 Qg3+ Kf1 Qb7 Qe3 Rb6 Ra2 Ra6 Qa7 Bc5 Nc3 Qh4 Rb6 Qg3 Bde4 Bg1 Bh1 Qc7 Ba8 Qb7 Rc6 Qc7 Bh7 Ke8 Bd5 Qb7 Ne4 Qf7 Qb8 Kd7 Bg6 Qh7 Qa7+
NB5R/1Br1bb1B/R4Bp1/KP1b3B/bpkq4/r3n3/Q3Nn1R/1qB1Q3 b - - 0 1 illegal: No proof kernel
Nkr5/2BKB3/2pn1R1r/2rq4/Nn2p3/RQ3NqR/Pb3NB1/1br1BN2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 g5 Kd4 b5 Ke5 e6 d4 c6 h4 Kc7 f4 g4 h6 b3 d6+ Kb7 h5 b2 f6 b4 d5 g3 d7 g2 f5 b3 f7 Bg7+ Kd6 e5 f8B e4 h7 Nh6 f6 Qe8 d8B Na6 f7 Nb4 Rh3 Bd7 Bd2 Nd3 Bc7 Qb8 Be1 Nf2 Nf3 g1R Bg2 Kc8 Be7 Ra7 f8N Bc3 Ne6 Nd3 Nbd2 b1R Nc5 b2 Nf1 Nf4 Na4 Be6 Qb3 Nd3 Rg3 Rg8 h8N Rc1 Nf7 b1Q N7g5 Bb2 Nh3 Ra5 Nf2 Nb4 Rh3 Kb7 Rg3 Bf7 Kd7 Rh1 d6 Nf5 h6 Bc4 h7 Bd3 h8R Rc8 Rhh3 Qc2 Rb1 Qc4 Rg6 Qd5 Rf6 Rc4 Rc1 Rac5 Rc3 Bb1 Rh2 Rd4 Bb6 Qg8 Qd1 Qc4 Ra3 Qa6 Qb3 Qc7+ Ke6 Qd3 d7 Qg3 d8N+ Kb8 Ba5 Nd6 Kd7 Rdc4 Ne6 Qd4 Nc7 Rc1 Na8 Qd5 Rh7 Rh6 Bad8 Rg6 Rh3 Rh6 Bc7+
1Brb4/Q2b1pN1/n2B1qR1/2R1PqBb/R2N1p1n/1rN1NB1b/2B2k2/3K4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 g4 Ke7 b4 Ke6 e4 Ke5 c4 d5 c6 a5 c5 h5 g6 a4 g5 a3 b6 h4 b5 a2 b7 d4 b6 h3 g7 d3 g6 Kd4 e5 h2 c7 Ra6 c6 Nh6 g8N Ng4 g7 Rh4 Bg2 Bc5 Nc3 Qe7 Nh6 Nf6 g8R Be6 c8N Bd5 c7 Rh3 Nd6 Bc6 c8B Ng4 Nc4 Ne3 Bf5 Bd7 Bf3 Qf6 Ba3 Be7 Qa4 Ra8 Rg6 Na6 b8B Bd8 b7 Ng2+ Kd1 d2 Be7 Nh4 Bbd6 Rc8 b8B Rg3 Rc1 a1Q Bc2 Qb1 Qa1 Rh3 Ne3 Rg3 Bb3 Qbf5 Nge2+ Kd3 Nd4 Rh3 Rhg1 h1B Qa5 Bg2 Qb6 Be6 Qa7 Bd7 Ra1 Rg3 Ra5 Bh3 Rc5 Qh8 Bg5 Qg7 Ne6 Qgf6 Ng7 Kd4 Rh1 Kd3 Bc2+ Kd4 Ke2 d1B+ Kd2 Be2 Ra1 Bd1 Bfe4 Bh5 Bf3 Rg2+ Kd1 Re2 Bb1 Rb2 Ra4+ Rb4 Nc2+ Kd3 Nd4+ Ke3 Bc2 Kf2 Ng4+ Kf1 Rc7 Rb3 Ne3+ Kf2 Rc5
2Rn2NB/2N2p2/p1BRqN2/2K1bb2/2nN1r1N/1Q5P/1Rq3q1/1rQ1qN1k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 d4 Kd6 b4 c5 e4 g5 b6 a6 b5 f3 Ke3 g4 h3 c4 b7 c3 h6 c2 b6 f2 h7 g3 e5+ Ke7 e6 Kd6 e7 g2 e8N+ Kd7 d6 Ke6 d7 Kf5 d5 Bg7 d6 Bc3 Nf3 g1Q Nbd2 Ba5 Kd4 Kf4 Nc7 Kg3 Bb2 c1Q Nh4 Qe8 d8N Bb4 d7 Qf8 Ra2 Nf6 Nc6 Ne4 d8R Qh2 Bg2 f1Q Rd6 Qa1 Qc1 Bc3+ Kd5 Qb1 Nd4 Nc6 b8N Qc2 b7 Qe1 Nd7 Qh6 b8Q Nd8 Qb3 Rb8 Nf6 Bf5 Nf1+ Kf2 Ba1 Nd2 Rb2 Nc4 Kc5 Qg6 Bf3 Qhg2 Bc6 Re8 h8N Re4 Rg1 Rf4 Rh1 Q6g4 N8g6 Rb4 Rh2 Kg1 Ne7 Q4e2 Neg8 Qe6 Ndb5 Be5 Nd4 Qge2 Rg2+ Kh1 Rg3+ Qee4 Rc3 Qeg2 Rb1 Ra4 Na8 Qb2 Ne4 Qbf2 Bd5 Nb2 Kb6 Qg4 Rc8 Qh2 Kc5 Nc4 Nb5 Bc3 Bc6 Qc2 Nac7 Qgg2 Bb2 Bg7 Bd4 Ra5 Rb2 Ra1 Be5 Rb1 Nd4 Bh6 Bh8 Bg7 Ne3 Bf6 Nf1 Be5 Nef6
R2Q2N1/2BKP3/Nbr2pq1/1Rq2QB1/r1n3n1/6N1/q1B1B1Bp/2k1Bbq1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 c5 g4 h5 d4 a5 b6 a4 b7 a3 g6 a2 g5 f3 d6 f2 d5 h4 g7 h3 g6 h2 d7 Ne7 Kd6 Ra7 g8B Rh7 g7 Rh8 b5 Kb4 e4 c4 e5 c3 e6 c2 b6 Kb3 Bh7 Ra3 g8B Ra7 Qf3+ Kb4 Be2 f1Q Bd2+ Ka4 Be1 c1Q Nc3+ Kb3 Bc2+ Kb2 Qf5 Qg5 Ne4 Rh6 Nf6 Qe8 d8B Nbc6 b8B Ra5 b7 Ra4 Bbc7 Na5 b8N Ba6 Bh7 Qg6 Ng8 Nec6+ Be7 Bg7 B7h4 Qf8+ Kd7 Qc5 e7 Bd4 d6 Nc4 Be4 Bb5 Bg2 Qf2 Na6 N6e5+ Kc8 Qfg3 d7 Ng4 d8Q Qga3 Nh3 Qe3 Nf4 Qg1 Nh5 Be3 Ng3 Bf2 Rd1 a1Q Rd5 Qa2 Re5 Kc1 Rd5 Qh5 Re5 Rc6 Kd7 f6 Rd5 Qca3 Re5 Bb6 Bg6 Nce3 Bh7 Bd3 Rb5 Qc5 Bg6 Nc4 Bh7 Qge3 Rf1 Qg1 Rf3 Be4 Ra3 Bd3 Qg5+ Qd2 Bd1 Re6 Nb8 Rb4 Ra8 Rc6 Na6 Ra4 Qd5 Bf1 Be2 Qb2 Bc2 Qa2 Qf5 Qg6 Bg5+
n3R1Bb/bq2Pp2/1r2BRQN/2Rr3N/nBK3bb/p4Nq1/3R3N/5k1N b - - 0 1 illegal: No possible last move
B2rq1n1/1qB1pQrN/1R1Bn1Q1/Rb1Bq3/1B5K/b3q3/1pP5/kQN4B b - - 0 1 illegal: No possible last move
2QR4/1n2p2q/1RP2Q2/4K1kN/1N3pbr/Rr1b4/B1QBQQbq/3nbQ2 b - - 0 1 illegal: No proof kernel
B1QqQ1bq/1KpNQ3/N1RR1n2/Q3b2k/2Q3qr/1pr2PBQ/1qR5/5n2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 g5 Ke4 e5 h4 b5 d4 b3 a4 g4 d6 b2 Kd5 b4 d7 b3 h6 g3 f6 Kg6 f7 g2 h5+ Kf5 h7 e4 a5 e3 h6 Kg6 a6 e2 a7 e1Q Qg4+ Kf6 Rh2 Qb4 Bf4 Qa4 Nd2 b1Q Ngf3 g1Q Bg2 Qgd1 Ne5 Qbc1 Ne4+ Ke7 Nc5 Kf6 Bg3 Qf1 Na6 Qe7 d8R Qc2 Rc1 Qb1 Rd6+ Be6+ Kc5 Qee8 d5 Qe7 Qc4 Kg5 Nd7 Bg7 f8Q Nf6 Rc3 Rg8 h8Q Qd8 h7 Nc6 Qe7 Re8 Qhf8 Ne5 h8Q Qb2 Qh3 Qfa1 Bh1 Rb8 a8Q Ng4 Bg2 Rb5+ Kc6 Rc5+ Kb7 Ne3 Be4 Qh1 f3 Nf1 Rhc2 Bf7 Qa7 Bg8 Qb6 Rc6 Qa5 Qh2 Rd3 Rc5 Rc6 Qh1 d6 Qh2 Qhe6 Qh8 Qh3 Qb4+ Nb6 Qa4 d7 Qb4 Rdd6 Qa4 Qg2 Kh5 Bd5 Qb4 Qh3+ Kg6 Qch4 Q2c3 Qe3 Bh6 Ka7 Qc8 d8Q Qb2 Nd7 Re4 Rb6 Bf4 Ba8 Rc3 Rbc6 Rec4 Qee7 Be5 Qd4 Kg5 Qdd5 Rh4 Qdf7 Qg4 Qc4 Bf7 Nb6 Qcd7 Qc8 Kh5 Kb7 Qd8 Nd7 Bg8 Qfe8+
1RR1q3/Pn2np2/RR2B2r/1k1BN1Bb/rN1q1R1b/3N4/pr6/2KB1r1Q b - - 0 1 illegal: No proof kernel
B5n1/2BKRbb1/2QN3n/3b3Q/3Np1N1/3RPNbn/p1NB2Nb/1k1r3q b - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 a4 a5 h3 b5 axb5 Ra6 h4 Rg6 Nh3 fxg4 Ng1 g3 Ra3 g4 Ra1 Rg5 hxg5 Be6 Qc2 Bd7 Qd1 Bc8 b4 Kf7 f4 Kg6 d4 Kf5 Kd2 Ke4 Kc3 h5 Kc4 c5 e3 e5 g6 g2 f5 a4 g7 h4 f6 a3 f7 a2 d6 g3 b6 h3 Kb5 h2 d7 c4 d5 c3 b7 c2 d6 Qh4 d8B Rh7 d7 Nc6 b8N Be7 f8N Qh3 Bc7 Rh4 d8N Be6 Na3 Rg4 Ng6 Rf4 Bd2 c1N Qh5 Rf5 Nf4 Ne2 Rd1 Bf7 Nc2 Bf8 Nb7 Nh6 g8N Bg7 Nf3 g1B Ng2 Kd3 Nd6 Bf2 Nf6 Ne7 Ng4 Neg8 Kc6 Rg5 Rg1 h1B b5 Rg6 b6 Rf6 Ngh4 g2 b7 Bg3 Kd7 Rf4 Nc6 Rd4 b8Q Rd5 Bc1+ Kc3 Qb7 Nf4 Rd4 Qh2 Bb5 Nh3 Bd2+ Kb2 Rd3 Rd4 Rf1 g1B Ng2 Rd5 Rf2 Kb1 Qc8 Rd4 Ba6 Rd5 Bb7 Rd4 Ba8 Rd5 Nge1 Qg2 N6d4 B1h2 Qa6 Qf1 Qc6 Bg2 Nh4 Qh1 Rf6 Bf3 Re6 Be4 Nhg2 Bf3 Nf5 Rd4 Re8 B3d5 Re7 e4 Nf3 Rc4 Nb4 Rc1 N5d4 Rd1 Nbc2
RRn3BB/B2qn3/n1r2N1r/3N1p2/1rQ2r2/r1bp1BQ1/B2k1P2/4RBK1 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Bb7 Ra1 c4 d3 Bd5 exd5 cxd3 b4 Kd7 g4 Kd6 c4 Ke5 b6 Ke4 d6 a5 g6 e5 g7 f5 g5 h5 b5 h4 d7 h3 c5 a4 g6 h2 c6 a3 c7 a2 c8B Ra3 b7 Bd6 b6 Rh4 Nf3 Na6 b8B Ne7 g8B Rf4 g7 d2+ Ke2 Qc7 d8Q Qd7 b7 Bb4 Qb3 d1N Qc7 Bc3 Ba7 Ne3 b8R N3d5 Qbc4 Nb6 Bb2 Ra4 Rg1 h1R Nh2 Rb4 Ng4 Rh6 Bb7+ Rc6 Bf7 Nbc8 g8B Rf3 Bh3 Rf4 Kf1 Kf3 Nf6 e4 Rh1 d3 Kg1 e3 Bf1 e2 Rh8 e1R Qe5 Bd4 Nc3 Rc1 Ncd5 Bc3 Rb1 a1R Ba8 Rc2 Re1 Ra3 Qc5 Rh4 Ng4 Rcb6 Nde3+ Qb7 Qed6 Bf6 Qg3+ Ke4 Bh7 Nd6 Ba2 Qc6 Rb7 Qd7 Qb5 Rcc4 Rf8 Rh6 Bg8 Be5 Ba1 Bb2 Rd8 Kd4 Qd5+ Kc3 Qf7 Re4 Qc4+ Kd2 Rf8 Bc1 Bh8 Rf4 Nf6 Bb2 Rd8 Bc3 Re8 Rc6 Rb6 Rc7 Bf3 Rc8 Ned5 Rc6 Ra8 Ndc8 Rbb8
1RrR1R1q/k2pNr1b/1QbP4/2K1bRqB/1p3Bb1/R1Q5/4N2B/1R2b1n1 b - - 0 1 illegal: No possible last move
6Bq/1r3Q1r/1qRR4/N3p2p/3BN1rP/kR1K4/NR1Q2rb/2bbRRn1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 f4 fxe4 g4 Bd7 f5 Be6 g5 Nd7 Ra4 Ndf6 gxf6 Bd7 Ra1 Bc8 Ke2 Kd7 h4 Kd6 b4 g5 d4 c5 f7 h5 f6 a5 b6 c4 b5 g4 b7 e6 b8R e3 b6 a4 b7 c3 Bb2 g3 Nf3 a3 Nfd2 a2 Kd3 c2 Nc3 e2 Rc1 a1Q Na2 e1R Bg2 Bg7 f8Q+ Ne7 f7 Re4 Re1 Ra7 Bc3 Rg4 Ne4+ Kc7 d6+ Kc6 d7 Kb5 d5 Ka4 d6 Rh7 Bf6 Nf5 Qd2 Ka3 Bd4 Qb6 d8R Be5 d7+ Bd6 Bf3 g2 Qg7 g1R f8R Bh2 Qf7 e5 Bg2 Ng3 Bh3 Rgg7 Be6 Rg2 Qff2 Qb4 Nac3 Qab1 Na2 Qd6 Bg8 Ne2 Rf6 R7g6 Rf1 Qe7 Rc6 Ng1 Rce1 Qg7 Qf7 Qf6 Ra8 Qh8 b8R Rgg7 Rbb6 Qb4 Rab8 c1B R8b7 Qa5 Rb2 R7g6 R7b5 Qb6 R5b3+ Ka4 Re8 Rc7 d8N Bg4 Nb7 Bd1 Ree6 R6g4 Na5 Rb7 Rb4+ Ka3 Red6 Re2 Rb5 Reg2 R5b3+
k1nB1RK1/q1BN1Qp1/rq1B4/nQb5/p1r5/Pn4BB/4n2R/3N1BNr b - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 e5 f3 d5 c3 Bf5 c4 bxc4 exd5 e4 Nc3 e3 Nb1 Be4 fxe4 Bd6 Qg4 Ba3 Qd1 Bf8 Ke2 Kd7 Kf3 Kc8 Kg4 Kb7 Kf5 c5 b4 a5 d4 c3 h4 e2 e5 e1Q h6 c4 d6 c2 a3 c3 h5 f6 Ke6 f5 Kf7 a4 h7 f4 b5 f3 h6 f2 b6 Qe2 d5 Qg4 d7 Qg3 e6 Bb4 d6 Qdh4 d8B Qe5 d7 Qg4 e7 Qeg5 e8B Bd6 Qe2 Qd4 Qb5 Qdg4 Bf4 c1N Bg3 c2 Bc7 Qd1 d8B Qe2 Bd7 Qee3 Bdh3 Ne7 Nc3 Bc5 Nd1 Ne2 Rh2 c1N Bcd6 Rg8 h8Q Nb3 h7 Qh6 B6c7 Re8 Qf8 Ra6 h8N Ka8 Ng6 Nbc6 Ne5 Nca5 Nd7 Nc8 Kg8 Re4 Qf7 Rc4 Rc1 Qd4 Rc3 Qc6 Re3 Qb7 Re8 Qa7 Rf8 Qd6 Bfg2+ Qc6 Bcd6 f1R B6c7 Re1 Bf1 Qg6 Bce5 Nd6 Nf3 Rc2 Bfg2 Rh1 Bf1 Qh6 Ng1 Nc8 Bef4 Rc4 Be5 Qb8 b7+ Ka7 Bec7 Qb6 Bcd6 Q8c7 b8B+ Ka8 Qb4 Qba7 Qb5 Qcb6 Bbc7
7N/qBRNb1q1/r3Nrq1/B1R1pBnp/1Q1r4/nKB3kP/3R2R1/4B2r b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 gxf4 d6 b5 e4 b4 d4 b3 e5 Bh6 e6 Bd7 exd7+ Kf8 d5 Kg7 axb3 Kg6 b4 Bf8 b5 Kf6 Kd2 Ke5 Kc3 f5 g4 a5 b4 h5 h3 c5 g5 c4 b6 e6 b7 f3 g6 f4 b5 f2 b6 a4 g7 f3 Bg2 f1R Bd2 a3 Qa4 a2 Qb4 f2 Nf3+ Ke4 Na3 e5 Rh2 Rg1 Rc1 a1R Nb5 f1Q Ng5+ Kf5 Ne6 Rh7 Be1 Ne7 g8B Rf7 Bh7+ Ng6 Bh1 Nc6 b8N Na5 b7 Rg4 Rf2+ Rf4 Kc2 Qg5 d8B c3 d7 Ra6 d6 Nc4 Kb3 c2 Ba5 Qh6 d8R Na3 Nd7 Qg2 b8R Qg7 Rb7 Be7 Rc7 Rf6 Rc5 Qg5 Bb7 Qg1 Rd1 c1Q Rdc8 Qd2 R8c7 Qd4 Rdd2 Qg4 Nb8 Qg1 d7 Qd6 d8B Qb6 Nf8 Qa7 Nbd7 Kg5 Nd6 Kh4 Nf7 Nh8 Bhe4 Kg3 Bf5 Rd4 Ne6 Rd1 Qb5 Qg2 Bc3 Qe4 Qb4 Qeg4 Rc8 Q4g6 Ba5 Ra1 Nfd8 Nf7 R8c7 Ng5 Nf7 Rc1 Nh8 Rb1+ Rb2 Rf4 Bed2 Rg1 Be1 Rh1 Rbd2 Rd4 Rg2#
1b2K2n/1bqR4/nk1B1R2/3pnr2/qN1qN3/3R1R1p/BQNPN3/3qN2B b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 f5 e4 g5 exf5 Bb7 a4 Bg7 h4 gxh4 b6 Bc8 b7 Ra6 b5 Rd6 b6 Rd5 Nh3 Rb5 axb5 a4 Ng1 Bf8 Ke2 h5 Ke3 c5 Kf4 a3 Ke5 h3 g4 h4 f4 e6 f6 h2 f7+ Ke7 g5 c4 g6 c3 f5 c2 g7 a2 Bg2 Rh7 Nf3 Rh8 Na3 Na6 b8N Rh5 b7 Qe8 b6 Rh7 f6+ Kd8 Qe1 Bc5 f8R Nh6 g8B Bd4+ Kd6 e5 f7 Nb4 Na6 e4 b8N e3 b7 e2 Nc5 Rh8 Ne4 Rh7 Na6 Ba7 b8N Bb7 Nc6+ Kc8 Qd1 e1N Ncd4 Ned3 Ne2 Ne5 Rb1 a1Q Rb3 Rg7 Rd3 Rg5 Bb2 c1Q Qb3 Qc3 Nc2 Rh5 Rg1 h1Q Ba3 h3 Rf1 Qg1 Qb2 Qd1 Bh1 Qf2 Nfe1 Bb8+ Nc7 Qg1 Rff3 Na6 Bb4 Rf5 Bc5 Ba7 Nd5 Qgd4 Bb4 Kb8 Ba3 Qa5 Bc5 Qc8 Ke7 Qaa4 Ndb4 Kc7 Rd8 Bb8 f8R Nhf7 Ke8 Nh8 Be7 Kb6 Ba2 Qcc6 Rf6 d5+ Rd7 Qd6 Bf8 Qdc6 Bd6 Qc8+ Ke7 Qc7 Ke8
2N1BQ1r/B1K2RB1/r5BB/1pp4Q/kn5q/5NnR/1rPnb1B1/R3qn2 b - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 f5 gxf5 axb4 h4 g4 Bd2 Bh6 Bc1 Bg5 hxg5 Ra5 Rh4 Ra7 Rh1 Ra8 Kd2 b5 Ke3 h5 Ke4 b3 Kd5 g3 f4 d6 e4 Kd7 a4 b2 a5 h4 a6 g2 e6+ Ke7 g6 h3 e5 h2 g7 Qe8 a7 Qh5 f6+ Kd8 e7+ Kd7 e8B+ Kd8 f5 Qh6 e6 Nc6 f7 Qh4 Nf3 g1Q Na3 b1R f8B Rb2 Bg2 Qge1 f6 Bd7 Rf1 h1N f7 Ng3 e7+ Kc8 Bf4 Kb7 Nc4 Bg4 Nb6 Bh5 Be3 Nf6+ Ke6 d5 g8Q d4 Nc8 d3 Bh6 d2 f8B Nb4 Bg6 Nfe4 Kd7 c6 Bb6 c5 Bfg7 Bg4+ Kd8 Kc6 Qe2 d1N Qf8 Nd2 Rf2 Kd5 Kc7 Ne3 e8B Nef1 Qe5+ Kc4 Qh5 Rb8 a8R Rb7+ Kd6 Ra7 Rb8 Ra6 Kc7 Rh7 Ba7 Rh8 Ne5+ Kc3 Rf7 Be2 Ra8 Na2 Rb8 Kb4 Rb6 Ka5 Rd6 Ka4 Rd3 Nh1 Rh3 Nhg3 Rd1 Nb4 Nf3 Na2 Rb1 Nb4 Ra1+
2R5/1R1Rbp1q/p2q1r1B/bbBR4/1Q2q2n/P1k1N1B1/4nNBK/4bBN1 b - - 0 1 legal: proof: f4 c5 e4 b5 g4 h5 gxh5 e5 b4 d5 bxc5 a6 c6 Ra7 Bg2 Re7 Bh3 dxe4 Bf1 e3 Ne2 e4 Ng1 Re5 fxe5 Qf6 Ba3 Qd6 Bc1 Qd8 Ne2 Ke7 d4 Ke6 h4 Kd5 Rh2 Kc4 e6 g5 e7 b4 e8N b3 h6 b2 a3 g4 h7 g3 d5 g2 h5 g1B c7 Bh6 d6 Bb7 c8B Nd7 Nbc3 b1Q Qd2 Nf8 d7 Bc6 Nd5 Qdb6 d8R Qa2 Bch3 Qd4 Rb1 Qb6 Nef6 Bb5 Rd7 Bg7 h6 Bc6 Ng4 Qc7 Rb7 Bb5 c3 Kb3 c4 Ne7 c5 Qd6 c6 Neg6 c7 Qc2 c8R Nf4 Rf2 Bf6 Bhg2 Rg8 h8B N8g6 h7 Be7 Be5 Nh4 h8B Rg6 Bhg7 Qd3 Bh6 Rf6 Bcb2 Qc2 Bbd4 Qd3 Ng3 e2 Qb4+ Ka2 Rf3 Qc2 Ba7 Bb6 Rd3 Ba5 Kf2 e1Q+ Kg1 e3 Bc5 e2 Nf2 Qeb1 Rd1 e1B Ne3 Qh7 Kh2 Qbe4 Rd4 Ka1 Ne2 Ka2 Ng1 Ne2 Bg3 Ka1 Qa4 Kb2 Rd5 Kc3 Qb4+
1NR2B2/1k1p2R1/5Qr1/1qb2R1K/1rQR2pn/R1rbR3/2qPbQN1/2r4B b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 h5 gxh5 Be7 b6 Bf8 b7 Bd6 c4 Qe7 f4 exf4 b3 Qd8 b4 Bf8 c5 Na6 b5 Nb4 Bg2 Nd5 Bf1 Nb6 cxb6 Qg5 Bb2 Qe7 Bc1 Qd8 Kf2 c5 Kf3 f5 b8Q g5 e4 a5 h4 c4 h6 c3 b7 a4 b6 a3 e5 c2 h7 a2 h5 Ke7 h6 Qe8 e6 Kd8 Qa7 Qe7 b8R Nf6 b7 Kc7 Nc3 Nh5 Qe2 Nf6 Ba3 c1Q Rh4 Qb4 e7 Ng8 e8R Qcb1 Na4 Qc2 Bg2 Ne7 Bh1 Ng6 Nh3 Rg8 h8Q Qbb2 Rg1 a1R h7 Rc1 Qf6 Qb6 h8R Qbb1 Kg2 f3+ Kg3 f2 Nc5 f1B R8h5 f4+ Kg4 f3 Nf4 f2 Re4 Bd6 Na6+ Kc6 Rh3 Nh4 Qae3 Ra7 Ra8 Qb6 b8R Rc7 Q2d3 Be2+ Qf3 Bb7 Rc8 Qb5 Nb8+ Kb6 Bb4 Rc3 Ra3 Rb1 Qd5 f1R Qc4 Rfc1 Rd4 Be4 Rgg3 Kb7 Ng2 Bf8 Be7 Rb4 Bd6 Bf1 Qf2 Bed3 Re3 Bfe2+ Rhf3 Bg7 Rh7 Bf8 Kh5 g4+ Rf5 Rg6 Rg7 Be7 Bg3 Bc5 Bd6 Bd1 Be7 B1e2 Bf8
6Nn/2pRRr1b/2kQBb1N/K3B2n/6Np/1bP2r2/1r1r2NR/4RBrN b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 fxg4 h4 g3 Kd2 g4 Ke1 Qg5 hxg5 Kd8 Be3 Ke7 Bc1 Ke8 Kd2 d5 Kc3 Kd7 f4 h5 e4 a5 b4 a4 g6 g2 g7 h4 f5 a3 f6 a2 e6+ Kd6 f7 g3 e5+ Ke7 b6 Rh5 b7 Rh6 b5 d4+ Kb4 d3 b6 d2 c3 Kd8+ e7+ Kd7 e6+ Kd6 e8R Na6+ Ka5 Kc5 b8R Kc6 b7 Kd5 e7 Rf6 Rh2 Re6 Na3 Rb6 Nb5 Nh6 g8N Kc6 Nh3 g1R Nd6 g2 Nf2 Bg7 f8N Nf7 Nh1 Bf6 Nf5 Nh8 Nfh6 Rb2 Ng6 Bf5 Nf4 Bh7 Rbd8 Rb8 Rd7 Nc5 Rb1 Ne6 Ra1 Rd8 b8N+ Kb7 Nc6 Ng7 Ne5 Nh5 Neg4 Kc6 Qe2 d1B Qe5 Ba4 Rb1 a1R Qd6+ Kb7 Bd2 Ra2 Re1 Bb3+ Kb4 Ra4+ Kb5 Rd4 Ka5 Rd3 Be3 Rdd2 Bd4 Rd3 Be5 Rf3 Bc4 Rgf1 Be6 g1R Ng2 Ba2 Rf8 Bb3 e8B R1f2 Rff7 Rfd2 Rfe7 Rc8 Bg6 Rf8 Bd3 Rf7 Qb4+ Kc6 Bf1 Bb1 Qa3 Bh7 Qd6+
5N2/2r5/bbB2R2/2rR2p1/n3nnPB/N1BQr1k1/NpK2Nb1/Rn2B1B1 b - - 0 1 illegal: No possible last move
5NB1/2rQR1Bp/k2n3N/RR4bn/b1Q2nR1/2b2q1P/2pR1RNb/4K1n1 b - - 0 1 illegal: No possible last move
3BBb2/N2p4/k3q3/n2R1b1B/4NBBQ/2pbR1r1/3Pn1RQ/n1B1K1nb b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 h4 g5 hxg5 Ke7 a4 Ke8 b6 Ke7 b5 Ra6 b7 Rf6 b6 Ke8 Nh3 Rf5 Ng1 Rb5 axb5 a4 Qb3 h5 e4 c5 g4 f5 e5 h4 g6 c4 g5 f3 g7 c3 g6 a3 e6 a2 e7 f4 Ne2 h3 Qa4 h2 Na3 Nf6 g8B Nh7 g7 Nc6 b8B Ba6 b7 Ng5 b6 Bd3 Bc7 Bf5 b8Q Nh3 b7 Ng1 Ng3 Rh3 Nb5 Qc8 Rb1 a1N Na7 Na5 Be2 Qd8 Bgc4 Qc8 g8R Qd8 Qa8 Qc8 b8B Qa6 Rb5 Qe6 Rg4 f2+ Kd1 f1N Ke1 Bh7 Qg2 f3 Rd5 Bg6 Re4 Bf5 Re3 f2+ Kd1 Kf7 e8B+ Kf6 B2h5 Ke7 Bd6+ Kd8 Bce2 Qf7 Qg4 Qe6 Ne4 Ng3 Bf4 f1B Bf3 Be2+ Ke1 Bd3 Qf2 N3e2 Qgh4+ Be7 Bfg4 Rg3 Nb5 Kc8 Bbc7 Kb7 Bd8 Bd6 Na7 Bf8 Qg2 Ka6 Qf2 Nh3 Rg1 h1B Qg2 Qg6 Qh2 Qe6 Rg2 Nhg1 Rb5 Nb7 Re5 Na5 Rd5
bN2R2B/1QRB1rrq/3B4/2N1N3/1PKnn2r/1BRpp2R/1b2k2p/n1B5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 h5 b4 d5 c4 a5 f4 e5 g4 h4 g6+ Kf6 g5+ Ke7 g7 Kd6 b6 h3 b7 a4 f6 a3 c5+ Kc6 g6 Kb5 f7 a2 c6 Qd6 f5 Qe6 c7 Ra7 f6 Qd6 Nd2 Nc6 b8N Bb7 c8R Qd7 Rc7 Rh4 Qf3 Ba8 Nb3 h2 Nc5 Bd6 f8B Be7 f7 Nf6 g8B Ne4 g7 Bf6 Rb1 a1N Bd6 Qf5 f8B Qh7 Rb3 Rb7 Ke2 Kc4 Bh3 d3+ Ke3 d2 Bd7 d1R Bge6 Be7 g8R Nd4 Bg7 Bf6 Bh8 Rf1 Re8 Bg7 Qg2 Rf7 Nf3 Bf6 Rb1 Kc3 Qg7 Kc2 Rb3 Ra7 Rf1 Rb7 Rf2+ Kd1 Kd3 Rf8 Bc8 Nc6 Rd7 d4 Rg2 Nc3+ Rg6 Rg8 Qf7 Rg7 Ra3 Rc7 Ba2 e4+ Kc4 e3 Rg3 Ne4 Rh3 d3 Qe7 Bd4 Ne5 Bb2 Rc3 Ke2 Bb3 Nd4 Qf7 Qh6 Qd5 Qg6 Qb7 Qh7 Rf7 Rd7 Rfe7 Rd8 Rc7 Rdd7 Qd5 Rde7 Bd7 Ref7 Qb7
RNB3q1/1b2Q3/1b1n1bRk/QN3p2/1nQ2Q1n/2Q1B1Kp/Pp3rNr/2Q5 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 b5 g4 c5 d4 f5 e4 Kf7 g6+ Kg7 d6 h5 d5 b3 g5 b2 e6 c4 e7 h4 e8Q c3 d7 b4 d6 b3 e5 c2 e6 Ba6 e7 Nh6 Nf3 Qc8 d8N Qc4 d7 Qe4 Nc6 Qf4 d8Q Bc8 Qa5 Ba6 Be3 c1B Qc8 Bd2 e8Q Qe5 Na3 b1N Nb5 b2 Qe7+ Nf7 Qc1 Bb4 Ne1 Qd5 Ng2 Bc3 Bc4 Qd8 Be6 Bf6 Qcc3 Nd2 Rag1 Rg8 Qcc7 Bc8 Qf4 Bb7 Bc8 Na6 Nb8 Nb4 Rh3 Nf3 Rh2 Kh8 g7+ Kh7 Rh3 Rh8 Rg3 Kg6 g8Q+ B8g7 Rh1 Nd6 Qgc4 Qg8 Rh2 Kh5 g6 Ra6 Rh1 Rc6 Rg5+ Kh6 Qc1 Bd4 Q4c3 Bgf6 g7 Bb6 Re1 Rc5 Rd1 Rd5 Re1 Rd2+ Re2 h3 Kg3 Nh4 Re1 Rf2 Re2 Qh7 g8Q Qg7 Qgc4 Rd8 Rd2 Qg8 Rd5 Nf7 Rc5 Rdd2 Rc7 Nd6 Rd7 Bf3 Ra7 Bb7 Ra8 Rde2 Ne1 Rh2 Ng2 Rf2 Rg6+
r1R5/1R3B1N/Qn1b2Bp/1Rr2qk1/Bp3N2/BN3R2/pPB4n/1b1Kb2r b - - 0 1 legal: proof: e4 c5 d4 g5 dxc5 b5 h4 f5 hxg5 fxe4 a4 Bg7 a5 Be5 Nd2 Bc7 Nb1 Bb6 axb6 Kf8 Bf4 Kf7 Bc1 Ke8 f4 Kf7 c4 Kg6 g4 e5 b7 d5 f5+ Kf7 g6+ Kf6 g7 a5 c6 d4 g5+ Ke7 c7 a4 f6+ Kf7 c5 Kg6 f7 d3 f8N+ Kf5 g6 a3 c6 a2 Ne2 h6 Qa4 e3 Nd2 e4 Kd1 Rh7 Nb3 d2 Rh5+ Qg5 Qa6 Rh8 Nf4 Be6 c8R Nf6 g8B Ng4 g7 Nd7 b8R Nh2 c7 Nb6 Rb7 Bd7 Bd3 e2+ Kc2 d1R Be3 e1B Bc5 Ba5 Nh7 Bb4 Bf7 Rh1 g8B Be8 Bf8 Bd6 Rf1 Kg4 Be7 e3 Rf3 e2 Bfg6 e1B B8f7 Qf5 Kd1 Bc6 Bc2 Be4 Re8 Rf8 c8B Rg8 Bce6 Rh8 Reb8 Rc8 Bd7 Rc5 Rc8 Bd3 Bf6 Be4 Bc3 Bd3 Bb4 Be4 Ba3 b4 Ba4 Bd3 Nc1 Be4 Bcb3 Bb1 Bc2 Qf6 Rd5 Qf5 Nb3 Kh4 Nf8 Kg5 Re5 Rc7 Rb5 Rc5 Nh7+
1n1BbNK1/rBk2R2/Q1n1BpBQ/1q4bB/2R2Rn1/P2pBp2/8/2r2rN1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 Qg5 bxa5 Qd8 Kf2 d5 Kf3 Kd7 Kg4 b5 Kf5 g5 h4 g4 c4 d4 e4 f3 h6 b4 a3 b3 h5 b2 e5 d3 a6 Bd6 c6+ Kc7+ e6 Qf8 c5 Bh2 h7 Qh6 a7 Ba6 e7 Qd6 e8B Bf4 h6 Be5 Qa4 Qf8 Nd2 b1R Nc4 Rb5 Rh4 Bd4 Be2 Bc3 Ne5 Bb4 Ng6 Ra5 Be3 Bd2 Rf1 Kc8 c7 Kb7 c8R Qg7 Nf8 Bb5 c6+ Ka6 c7 Nf6 Qc4 Rg8 h8Q Kb7 h7 Qh6 Qg7 Qh5+ Qg5 Ra6 h8B Rc6 Qa4 Rc1 Rf2 Nfd7 Bf6 Nc6 Be7 Ndb8 Kf6 Rh8 Kg7 Rh6 Qb4 Rf6 Qd6 Ba4 Qh6 Qb5 Kg8 Rf5 Bd4 Bg5 Be3 Rf6 Rd8 Rf4 Rd7 Rf5 Qde6 Rf6 Rd4 Rf4 c8B+ Kc7 Re4 Nd8 B7c5 Qb1 Rd4 g3 Rg2 f6 Bh5 Rd1 Bb7 Qb3 Nh3 Rf1 Be7 Be8 Bd1 Qb5 Qa6 Ndc6 Bb3 Rf5 Rdg4 Bf4 Be6 Rc5 Rg7 Rc4 Rc2 Bg5 Rf7 Rc5 Rf4 g2 Bc1 g1N Be3 Ne2 Rc1 Ne5 Ng1 Nd4 Be4 Ng4 Beg6 Rc3 Rc2 Ndc6 Rc1 Rb3 Rc5 Rc3 Rcc4 Nd7 Bef5 Rcc1 Be6 Rb8 a8B Rb7 Qa7 Nb8 Qa6 Ra7 Bb7 Qe5 Rc3 Qc5 Rcc4 Qb5 Bd8+
Q1kBb3/b4b2/3B1p1n/n1PrBqN1/2pr1pR1/3RB2K/N1B3r1/2B1Q2R b - - 0 1 illegal: No proof kernel
1bbN1nN1/1RB1r1rk/Bpqp4/r4QR1/RR1P1n2/1KN2Rb1/B3p3/2N5 b - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 e4 h5 g4 f5 exf5 Nf6 gxh5 Ng8 b6 cxb6 d4 Kf7 Kd2 e5 Kc3 g5 h4 Kg7 f4 a5 f6+ Kh6 f5 e4 f7 a4 f6 a3 Qf3 a2 Ba6 e3 Qf5 g4 Kb3 g3 c4 g2 c5 Ra7 c6 Ra8 c7 Qe7 Ne2 g1R Nbc3 Nc6 b8R Na7 Rb7 Bg7 f8N Qe4 f7 Qd3 Ne6 Rg4 f8R Rg5 Nd8 Rh7 Bd2 Rg4 Rhb1 Nf6 Nc1 Nd5 Be1 e2 Bg3 Bf6 Rg8 Nb5 Rg5 Nf4 Rb2 Ng6 Be5 Kg7 h6+ Kh8 h5 Qe4 Bh2 Re7 h7 Qc6 Rbb1 Kg7 h8N Kh7 Nhf7 Be5 Nh6 Rg1 Ng8 Bg3 Na4 Nc3 h6 Nd5 Nc3 Nf4 Bc4 Ra5 Bd5 Kh8 h7 Kg7 h8R Rg2 Rgh5 Nf8 R8h6 Rg1 Rf6 Rg2 Rg5+ Kh8 Rb2 Rg1 Rab1 a1B Ra2 Bb2 Ra4 Ba3 Qd3 Ng2 Kc2 Bad6 Rf3 Bge5 Qf5 Re6 Rg6 Kh7 Ba2 Re7 Rbb4 Bf4 Bg3 Bde5 Be1 Bh2 Bg3 Bd6 Be5 Nf4 Kb3 Rg5 Qg4 Bg3 Qe6 Rf5 Rg5 Rf6 Qf5+ Rg6 Ra7 Ba6 c8B Bb8 Bc7 d6 Be6 Bc8 Bc4 Rd7 Rb7 Re7 Qg4 Rgg7 Ba6 Re3 Qd7 Ree7 Qf5+
qN2r3/bN6/p2K2n1/NBB3P1/N4prk/N1pB1Q2/1N1r1nRn/1b1Q2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 f5 e4 h5 g4 c5 d4 c4 b4 c3 d6+ Kf7 d7 Kg6 d5 h4 e5 h3 b6 h2 d6 a6 b5 Rh5 e6 Qc7 d8N Qd7 b7 Qf7 d7 Be7 b6 Qh7 Ra2 Ra7 Ba3 Bc5 e7 Be3 e8B+ Qf7 Ne6 Ne7 d8N Nd7 b8N Nf6 b7 Nfd5 Nc5 Be6 Beb5 Nf6 Nbc6 Qf8 b8N Ne4 Rg2 Rd7 Ndb7 Nf2 Nca5 Rh4 Na4 Ba7 Bfd3 Ba2 Ne2 Rd8 Rhg1 h1R Bc5 Re8 Na3 Bb1 Nc1 R1h2 Bc2 Qh8 Nd3 Qf8 Ndb2 Qh8 Ke2 f3+ Ke3 Qg8 Kf4 Qd5 Nd3 Qc6 Ke5 f4 Nd6 Qa8 Ndb7 Nh3 Ke6 f2 Kd6 f1N Qf3 Nf2 Ndb2+ Kf7 g6+ Kf6 g7 Kg5 g8Q+ Ng6 Rg3 Rg2 Qb3 Nh2 Be4 Rh7 Bc2 Kh4 g5 Rhe7 Bcd3 Re2 Qd1 Rd2 Re1 Rg1 Rg2 Nh3 Rge2 Rg4 Rg2 Nf2 Reg1
1Rn2R2/1bR3Np/3Nr2n/2rP3k/q2Q1BNp/1pN1B3/1b3r2/1NRK1B1b b - - 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 bxa5 d5 c4 e5 fxe5 Bc5 cxd5 Bf8 d4 c5 a4 b5 g4 f5 e4 Kf7 g5 Kg6 a6 c4 e6 c3 e5 f4 a5 c2 e7 f3 e8N b4 e6 b3 a7 Nc6 a6 Be7 d6 Bf8 d7 Nf6 e7 Rb8 a8R Ng8 d5 Nd4 a7 Bg7 Nd6 Nb5 e8N Rb7 Be3 c1R Rb8 Rc6 a8R Kh5 g6 Nh6 Qd4 f2+ Kd1 Na7 Ne2 Rb5 Nec3 Qa5 d8B Rbc5 Bdg5 Qa4 Bgf4 Bb7 Rh2 Bf6 g7 Rf8 g8N Nc8 Rg2 Bh8 Rg7 Rb6 Rc7 Rf7 Bg2 f1B Bh3 Bg2 Ng7+ Kg6 Nf6 Bh1 Ng4 Rf5 Be5 Rf2 B5f4 Ra6 Bf1 Rac6 Ra2 Rb6 Rc2 Ra6 Ngf5 Kh5 Rc1 Rb6 Ndb5 Rf6 Nbd6 Re6 Ng7+ Kg6 Nge8 Qa3 Na4 Be5 Qc3 Na7 Rd8 Bg7 Rab8 Nc8 Qe5 Bf6 Ng7 Qb4 Qb2 Be5 Qd2 Bb2 Nac3 Qc4 Qd4 Qa4 Ngf5 Kh5 Re8 Qa8 Rf8 Qa4 Ng7+
RB6/3p2n1/R1rq1N1p/1KQ1Rp2/8/1BR1Nbbn/2P1rnBB/1NkB2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 g4+ Ke4 b4 f5 e6 a5 b6 d3 e7 d2 e8R+ Kf4 e4 Ke3 b7 a4 b5 a3 g6 h6 g5 a2 b6 Ra6 e5 Rh7 g7 Be7 e6 Rh8 g6 Ra7 Bg2 Ra8 Na3 Ra7 Rh3+ Kf2 Rc3 Ra6 Ne2 Bd6 e7 Qc7+ Kb5 Nc6 Nf4 Nb4 b8R Nd5 b7 Ngf6 g8N Nh5 g7 Be5 Qf3+ Ke1 Nf6 d1N g8B Qd6 Ra8 Ng7 b8B Bb7 Bf7 Rf8 Be3 Rg8 Bg1 Kd2 Bh2 Rh8 Qe4 Nf2 Qb4 Rf8 Qc5 Rg8 Ne2 Nf4 Ng3 Bf3 Bb3 Rc6 Nf1+ Ke2 Rb1 a1R Rb2 Kd1 Ra2 Rc1 Nb1 N4h3 R2a6 Bg3 Rf8 Bg4 e8B Bh5 Bef7 Bg4 Bfc4 Bf3 Re8 Rf8 Re6 Rf7 Re8 Re7 Bd3 Re3 Re5 Re1 Na3 Rb1 Ne3+ Kd2 Bdf1 Rbd1 Be2 Kc1 Nb1 Rg1 Bg8 Rd2 Bd1 Re2 Bb3
1rBQN3/1p2k1N1/1bnrB3/1Q3Qqb/NP1bN1RN/2rp1NKR/1p6/6n1 b - - 0 1 illegal: No possible last move, all moves rejected
3QQnN1/3bQ3/3Q1B2/1q3QB1/2r1prpn/1q1N2bp/N3kQPR/K1R4n b - - 0 1 illegal: No proof kernel
4BBb1/R2n2rB/kNq2B1K/2B1n2p/Nq5r/1QqP4/1p3pN1/R1R1b1N1 b - - 0 1 illegal: No proof kernel
1bb2R2/8/BRN1P1pN/K2p4/n1Qp1qr1/bBn1B2r/kNN2BR1/5N1q b - - 0 1 illegal: No possible last move
2B2N1q/Q2Q2rr/pp6/3RqnR1/rpNNb3/2kP4/1bNBK1n1/4NN1R b - - 0 1 illegal: No proof kernel
2QNR1nN/6k1/pp1pR2B/1n1q1Q1n/rR4NN/b1q2b2/NPrN1K2/5B2 b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 f5 exf5 b6 gxh5 Nf6 a5 Qc7 a6 Qb7 axb7 Ng8 h4 Kf7 f4 e5 c4 g5 h6 g4 f6 a6 h7 g3 h5 d6 f5 g2 h6 d3 c5 e4 c6 d2+ Kf2 Nd7 b8R Bb7 c7 Bd5 c8Q Bc6 Rh4 Ne7 Nf3 g1N Qc2 d1Q Nfd2 Ne5 Nc3 Bg7 Na2 Nc4 Rb1 Re8 h8N+ Kf8 h7 Na3 f7 Ne2 Qd3 Bc3 Ng6+ Kg7 f8N Ng3 h8N Nb5 Nh7 Bb4 Nf6 Ba3 Ng4 Ng8 Ra1 Nh5 f6+ Kh7 f7 Kg7 f8N e3+ Kg1 e2 Qdf5 Bb7 Kf2 Bf3 Rb1 Re4 Ne6+ Kh7 Ra1 Ra4 Nd8 Kg7 Rb1 Ra7 Ra1 Rc7 Ra8 Nf4 Rh6 Rc2 Nh4 Nh5 Re6 Ne7 Nc4 Qd5 Bh6+ Kg8 Nd2 e1Q+ Kg1 Qee5 Kf2 Qc3 Rae1 Na7 R1e4 Nb5 Bf4 Kg7 Rb4 Ng8 Rb8 Ngf6 Bh6+ Kg8 Rb7 Qcb3 Bg5 Qc3 Rbe7 Kf8 Re8+ Kg7 Be3 Ng8 Bh6+
BBR1B3/QN3kp1/1q4rr/pB1p1q2/RRR1RNP1/1r1bN3/2b2n1n/2K5 b - - 0 1 illegal: No proof kernel
1b1bR2B/6pB/2p5/1b2N1RB/p1Nkn2q/1Bn2K2/2qPr1Qr/BRQ1B3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 h4 f5 e4 a5 b4 c6 b6 a4 b7 f4 d6+ Ke6 d7 f3 h5 Qa5 d8Q Nh6 b5 Bb4 b6 Nf7 h6 Qa7 h7 Nd7 b8B Bf8 Bd3 Qa6 b7 Rg8 h8B Bd6 Qg5 Bc7 Na3 Rf8 Bb2 Nf6 Rh5 Nd6 Qc1 Nb5 Rb1 Nc3 Ba1 g3+ Ke3 f2 Nf3 Qb5 Nc4 Qb2 Bc2 f1Q Bb3 g2 Qg3 Rf7 Rg5 g1B+ Qf2 Ke7 e6 Qc2 e5 Qh3 Ba7 Qh4 b8R Bh2 Bd4 Ke8 e7 Kd7 e8B+ Ke6 Ba7 Kd5 e6+ Bhe5 e7 Ba6 Bd7 Ba5 e8B Bb5 Bf5 Bd6 Bc5 Raa7 Rc8 Bb8 Qh2 Rf8 Bh5 Rff7 Rf8 Bd8 Re8 Rf8 Qg3 Re7+ Kf2 Re1 Nfe5 Nfe4+ Kg2 Re2+ Bf2 Rf7 Bh7 Rf3 Qh2 Rh3 Qhg1 Rh2+ Kf3 Qa2 Qgf1 Qc2 Be1 Kd4 Qg2
3B4/B1QRb1pp/n1rr1Rq1/bK2pB2/8/4P1B1/2k1B1NN/B1nrq1QR b - - 0 1 illegal: No proof kernel
R4NB1/R1B2p1N/3rnq1r/3p4/q1BQ2p1/N1r1R1R1/1kb1RPBb/n4K2 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 c4 Ke7 e4 Ke6 h4 a5 b6 d5 c6 g5 h5 a4 h6 a3 b7 g3 c7 g4 c5 g2 c6 a2 h7 Ra6 Na3 Nd7 b8N Ra7 Qd4 Qf6 Nh3 g1Q Bf4 Nb6 Ng5+ Ke7 e6 Bh6 e5 Na4 Rh3 Ra8 Nd7 Ra6 Nf8 Nc5 Rg3 Nb3 Ke2 Bd7 c8B Bg7 c7 Ba4 Bg2 Rd6 Ba6 Nh6 c8B Nf5 Bd7 Qc1 Bdc8 Qc6 Kf1 Bh6 Bd3 Ng7 Bca6 Qe8 Bac4 Qd7 Rb1 Na1 Rb7 Bd1 Ra7 Bc2 Ra6 Qa4 Ra7+ Ke8 e7 Ne6 Bd2 Bg7 Ba5 Bh6 Bc7 Bg7 Ng6 Kd7 e8R Kc6 Re7 Rc8 h8R Bh6 Nh7 Bf4 Rh3 Bh2 Ngf8 Ra8 Rg3 Rc8 Qf4 Kc5 Qd4+ Kb4 Bde4 Rb8 Rg8 Rbb6 Re8 Nd8 e6 Ra6 e7 Ne6 Rea8 Rac6 e8R Ra6 Bcd3+ Kb3 Rg5 Rac6 Re5 Rc3 Bc4+ Kb2 Bg6 Nb3 Ree3 a1R+ Ke2 Rh1 B6e4 Bg1 Kf1 Rh6 Re2 Na1 Bf5 Nd8 R8e3 Ne6 Ng5 Qd7 Bh7 Qa4 Bg8 Bh2 Ngh7
2bq1B2/rB1Qpk2/3QN1p1/q1BpR3/P4RN1/b1BrBB2/5rn1/1K1n2R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 b5 f4 d6 a4 b3 h4 b4 c4 g6 c6 b2 Kc2 Ra6 h6 Ra8 h5 Bb7 h7 Ba6 f6 Ra7 c7 Qc8 c5 Ra8 f7+ Kd7 f5 Ra7 h6 Qb7 c8B+ Kd8 f6 Bg7 f8B Ke8 f7+ Kd8 c6 Qb5 Nh3 Nf6 Rg1 Nh5 Nd2 b1R Be2 Qa5 Nc4 Nd7 Nf4 Nc5 Ne5 Ne4 Be3 Nc3 Bf3 Rb3 Ng4 Rg8 Qd3 Nd1 h8B Bb2 h7 Ba3 Bb7 d5 c7+ Kd7 Ne6 Nf4 Bc3 Ng2 h8B Kd6 c8Q Qd8 Bfh6 Rf8 Bhd4 Qa5 Qf5 Qd8 Qc5+ Kd7 Be1 Rd3 Bec3 b3+ Kb1 b2 Qb4 Qa5 Bc5 Qd8 Ba8 Bc8 Bb7 Rh8 Bhg7 Rh2 f8R Qa5 Rf6 Ke8 Bf8 Qd8 Qe5 Qa5 Qd6 Qd8 Rf5 Qa5 Re5 Kf7 Qb5 Qd8 Qbd7 Qa5 Ra2 Qd8 Kc2 Qa5 Kb3 b1Q+ Rb2 Qc2+ Ka2 Qd8 Ka1 Qd2 Kb1 Qe1 Rf2 Qd2 Bb2 Q2a5 Bc3 Nf4 Rb2 Rf2 Rb4 Ng2 Rf4+
2N3Q1/1bN1p1Bk/P3N2p/8/4R2r/rNqQ1npb/2B1R1Nb/qN2Qn1K b - - 0 1 illegal: No proof kernel
1nr4Q/q2p2p1/4BBKB/P1QB1R2/k1b5/2q1N1R1/1np1Br2/1Nbq1BQ1 b - - 0 1 illegal: No proof kernel
2N1R1R1/3pp1N1/KB1b2rB/1N4n1/2bN1p1R/1q1Pq1R1/RQ2r3/rn1B3k b - - 0 1 illegal: No proof kernel
B2r1R1b/2PRB1NN/2K2pqR/5b1R/Qrk3b1/p2B1n2/2pB1B2/nNq5 b - - 0 1 illegal: No proof kernel
1Q1r1qB1/1p6/2b1QP1r/3nb2p/N1Qp1N2/Rq1B2BB/qnR1B2K/2Bk4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 f4 Kf7 Kf2 d5 Kg3 e5 a4 h5 c4 b3 a5 e4 g6+ Kf6 g7 e3 a6 d4 c6 e2 c5 e1Q+ Kh2 b2 g4 Qde8 g5+ Ke7 f6+ Ke6 f7 Kd5 c7 Ke4 f5 Qd2+ Ne2 Ke3 f6 Nd7 c6 Rh6 a7 Ne5 g6 Nd3 Qe1 Rb8 a8Q Nf2 Ra3+ Nd3 Nc3 b1Q Na4 Bb4 f8B Bc3 Bd6 Bb2 Bg3 Be6 c8B Bg4 c7 Bf3 Bch3 Qf8 c8B Ne7 g8Q Bc6 g7 Nd5 Bcf5 Rd8 Qb8 Qc2 Rg1 Qb3 Rg2 Bc3 Bh7 Nb2 Bd3 Bb4 Nf4+ Kf3 Qf7 Bd6 g8B Be5 Qe6 Qdc2 Qb4 Qa2 Qc4 Qcb3 Be1 Qc5 Rc2 Qf8 Bed2 Kf2 Be3+ Ke1 Bf2+ Kd1 Bh4 Qc5 Bg3 Qf8 Bfe2#
Bq1Q4/P3k3/2p4q/3pN1R1/B2R2pn/1nrR1B2/1KNBbb2/2QBrnB1 b - - 0 1 illegal: No proof kernel
5RNR/p7/b3pN2/RPp2BqQ/4n1rb/n4N2/Kn1N3r/R1Bq1BNk b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 d4 c5 Kd2 h5 Kc3 h3 Kb2 h4 g4 e6 f6 h2 f5 h3 b6 Nc6 b7 Qd7 b8R Nce7 b5 Ba6 g5 Ng6 f7 N6e7 g6 Qc8 g7 Qd7 f6 Nh6 g8B Ng6 Nd2 Ng4 Ra5 N4e5 Ka2 Nc4 Bh7 Nf4 Qh5 Qd8 Bf5 Be7 f8N Na3 f7 Nd3 Nh7 Bh4 f8R Qg5 Nf6 Rh6 Rh8 Nb2 Rbf8 Re8 Rf7 Rg8 Rf8 Rgg6 Rd8+ Ke7 d6+ Kf7 d7 Ke7 d5 Kd6 Bc4 Ke5 d6 Kf4 Rdf8 Kg3 d8N Kg2 d7 Rh7 Nf7 Rgg7 Ne2 Rh6 Rf1 h1Q d8N h2 Ne5 Qg1 Bcd3 h1N Nef3 Ng3 Nc6 Kh1 Ne7 Ne4 Re1 Qf1 Neg1 Qe2 Neg8 Qd1 Bg6 Qe5 Bf5 Rg4 Bf1 Qf4 Qf7 Qg5 Qh7 Bf2 Qg6 Rh2 Qh5 Bg3 Re3 Bh4 Rb3 Na4 Rb1 Nb2 Ra1
4Q2B/b2bnrB1/R1b5/b2B2Kp/2k2B1B/RN2R3/1npPrNp1/N1Rq4 b - - 0 1 illegal: No proof kernel
R4BRq/N3n1nn/1RRQ1b2/1P1prR1Q/1np5/k3r3/p2RB1N1/1Q4Kb b - - 0 1 illegal: No proof kernel
3r4/KB1B3N/bRRRbB2/p2bQ2n/q3PbN1/1p1k2nN/Br4p1/2R2B2 b - - 0 1 illegal: No possible last move
r1nN2q1/1NB1RRN1/P1B1nnp1/3p2k1/Q1Bb1nb1/1pR5/3rRB2/K1R5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 c4 Kf6 Kc2 b5 Kb2 d5 h4 e5 a4 g6 f4 b3 c6 b4 h6 e4 h7 e3 a5 e2 h5 e1N a6 Qa5 c5 Nd7 h6 Nb6 c7 Bb7 c8R Be7 c6 Bf8 c7 Rb8 Ne2 Ra8 Ra2 Be7 Ka1 Qa4 Nd4 Ng2 Bc4 Ne1 Be3 Qe8 Nc3 Bf8 Re2 Qb5 Ne6 Qe8 Bf2 Ra7 Ne4+ Kf7 f6 Na4 f5 Nd3 N4c5 Nab2 Ng7 Na4 Rf1 Bc6 Nb7 Ndc5 Qc2 Ne6 Rc1 Bd6 Qa2 Nb6 Qa4 Ra8 Rc3 Kf8 f7 Ke7 f8N Bd7 f6+ Kf7 Rc1 Bc5 Rc3 Qd8 Rc1 Bd4+ Rc3 Qe7 Re8 Qd8 c8B Nc5 R8e5 Bg4 Bd7 Nc8 Bc6 Qe8 Nfe6 b2+ Ka2 b1N Ka1 b3 Ned8+ Kf8 f7 Ne6 R5e3 Ke7 f8R Qf7 Re5 Kf6 R5e3 Kg5 Re4 Qc7 Rf7 Nf6 R4e3 Re8 h8R Qb8 h7 Re7 Rhf8 Rc7 h8B Re7 Rb2 Re8 Rc1 Nc3 Re7 Ne2 Rff7 N2f4 Rec3 Rf8 Re2 Re8 Nf5 Rf8 Bg7 Rh8 Bf8 Rh3 Ng7 Rd3 Rc7 Rd2 Bd6 Qa7 Be5 Qc5 Rcd7 Qf8 Bc7 Qg8 Rde7
1N4KQ/2qnBBRp/7k/2N3Np/n4rp1/4BnB1/nPBbR1B1/5rQb b - - 0 1 illegal: Other
1R3QnB/1B4Pr/1BBBprb1/4KNrB/q2R1pNk/7p/1R5r/bQ2n3 b - - 0 1 illegal: No possible last move, all moves rejected
b4Nbn/BRBP4/k1p1R2b/q2R1Kp1/r3QQRb/1Bn1pR1N/4R3/5r2 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Kd3 b5 Ke4 g5 d4 e5 f4 b4 a4 c6 h4 Kc7 a6 Kb6 d6 b3 d7 g3 d5 g2 h5 b2 h6 Qc7 d8B Ne7 h7 Ng6 a5+ Ka7 f6 Bg7 d6 Ne7 f5 Be6 f7 Nd5 f8R Bh6 f6 Ne3 f7 Nf5 Be3+ Qb6 Na3 b1B+ Qd3 Bg7 Bc7 Nd4 Nh3 g1B Nc2 Bb3 Ra2 Bf2 Rg1 Bh4 Rg4 Nf3 Kf5 e4 Nd4 Bd1 Re2 Bbc2 Ne6 Rg8 h8R Bb3 Rh6 Ne5 Bc5 e3 Qe4 Bd5 Rd8 Nbd7 Nf8 Rh8 Re6 Nf6 d7 Ng6 Rb8 Rh7 Qf4 Bh6 Bg2 Ba2 Bd5 Ba4 Bb3 Nd5 Bd4 Qc5 Rb5 Qb6 Rc5 Nc3 Rd5 Bb5 Qe4 Nh8 Bc5 Rd8 Bd4 Ka8 a7 Kb7 a8R Ba6 Rb8+ Ka7 Bc5 Bb7 Qf4 Ba8 Rb7+ Ka6 Qe4 Kb5 a6 Rc8 a7 Ka6 Ng6 Rg8 f8Q Qa5 Qd6 Re8 Qdf4 Rc8 Nf8 Rb8 Rb4 Rb5 B5b6 Rc5 Rb5 Rc4 Bc5 Ra4 Rb7 Rg7 Kf6 Bb1 Rdd6 Ra3 Re5 Ba2 Bd1 Qb6 Qff3 Bg8 Bb3 Kb5 Red5 Rf7+ Ke5 Rf4 Re6 Ra6 Qg3 Rf2 Qgf4 Ra2 Rb8 Bb7 Kf5 Rf3 Rf2 Ra1 a8R Ra3 Ra7 Ba8 Rbb7 Ra1 Rf1 Rf2 Ra4 Raa2 Rad4 Ka6 Rd2 Ra4 Re2 Qa5 Ba7 Rf3 Rfg1 Rf2 R1g3 Rf1 Rf3
1B2q1r1/R2pn1Q1/BBpnkBPB/1N1N4/pn3N2/1Qb1B1r1/5K2/1R4nb b - - 0 1 illegal: No proof kernel
1N2nQNb/1Np2b1R/2q3kN/2BB3B/Np1rnRP1/pK2b3/r3b3/1N5Q b - - 0 1 illegal: No possible last move
N4k1N/1Bp1pBb1/R4R2/6b1/b1qN1Bb1/1nP2Bp1/5B2/R1rQnrNK b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 Nf6 axb5 Ng8 f3 Nd7 f4 Nb8 g4 h5 f5 g6 fxg6 Bb7 g5 Bc8 Qg4 hxg4 Kf2 f5 Kg2 a5 b4 g3 h4 a4 d4 f4 d6 a3 c3 a2 h5 Ra6 b6 Nd7 g7 Rh6 b5 Ngf6 g8B Nc5 g6 Nfe4 b7 Ra8 b8B Ng5 g7 Rh7 h6 Nf3 b6 Ra5 d5 Bf5 b7 Bg6 Na3 Rh8 h7 Ra7 Nc2 Bf5 Rh6 Bg6 Bf7+ Kd7 g8B Ra8 Ba7 Ne1+ Kh1 f3 Nd4 f2 Be2 f1B Bf3 Nb3 Bf4 Bh5 Rf6 Bg4 Bc5 Qe8 b8N+ Kd8 Bb6 Bb5 Nd7 Bg7 Bc5 Ra3 Nb6 Ba4 Na8 Qc6 Bb6 Qc4 Ba7 Nc5 Bb6 Rb3 Ba7 Rb1 Bb6 Rc1 Ba7 Kc8 d7+ Kb7 d8R Nb3 Rdd6 Kc8 Rc6 Kd8 d6 Kd7 B7d5 Ke8 Bgf7+ Kf8 d7 Rg8 Ra6 Rh8 Rb1 a1B Bb7 Bb2 Ra1 Rg8 h8N Ba3 Bb6 Bd6 Be3 Bf4 Bc5 Bg5 Bd6 B7h6 Bf2 Rg6 Bf4 Bg7 Rf5 Re6 Rf6 Re2 B2e3 Rf2 d8Q+ Be8 Qd5 Rf1 Bf2 Bed7 Nb5 Bc6 Qd1 Be8 Nd4 Bc6 Be4 Ba4 Bf3
2K3Q1/r1n2n1Q/2pB3p/5BqP/QpQQ3r/2N2QR1/2RrqN1R/k1q3b1 b - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Na6 g4 Rb8 f4 Nh6 b4 axb4 g5 Ra8 f6 Nb8 f5 Be6 g6 Bf7 gxf7+ Kd7 Qe2 Ng8 Qg4 Ra4 Qd1 Ra8 Ke2 Kd6 Ke3 Ke5 h4 b5 a4 g5 d4+ Kd6 Ke4 e5 h5 g4 a5 h6 a6 b3 a7 b4 Bf4 g3 Bh3 c6 Ra3 g2 Qe2 b2 Qc4 Rh7 Rg3 Ne7 Nc3 b1R Rh2 Bg7 f8R Na6 f7 Ng6 f6 Nh8 Kf5 Rc8 a8Q Nb8 Qa4 Qa5 Bg4 Qa6 Nh3 g1Q Nf2 Rd8 Rg8 Qb5 Re8 Qc1 f8Q+ Kc7 Ke6 Kb6 d6 e4 d7 e3 f7 e2 d5 e1Q+ Kd6 Qe2 Qe7 Bd4 f8Q Na6 Bf5 Nc7 Qe4 Rb2 Re6 Re8 d8Q Nf7+ Kd7 Rd2 d6 Qc5 Rf6 Re5 Qf3 Re4 Qg8 Rg7 Be5 Rh4 Kc8 Qa5 d7 Qb5 Nd3 Bg1 Qe7 Qa5 d8Q Qb5 Qd1 Ka5 Bd6 Qc5 Re6 Qce3 Nf2 Qg5 Re3 Rh7 Nce4 Rg7 Rc3 Rh7 Rc2 Ka4 Nc3+ Ka3 Qdd7 Nd8 Qee3 Nce6 Qdf7 Rg7 Qg6 Ra7 Rb2 Nc7 Q6h7 Nf7 Qed4 Rf4 Rb1 Rh4 Ra1+ Kb2 Qa4 Qc2 Rc1 Qb1 Qab5 Ka1 Rc2 Qc1 Qa4+
b1B2B1n/1N2KN2/2pp2p1/qQ1PRrk1/1NR2Rb1/1qb5/n2qN1BB/2B5 b - - 0 1 legal: proof: g4 e5 f4 exf4 b4 h5 gxh5 a5 a4 b5 axb5 a4 b6 Qe7 c4 Nf6 c5 Ra6 b7 Qd8 b5 Rb6 cxb6 Ng8 Kf2 Ke7 Kf3 Kf6 Kg4 a3 d4 f3 h4 g6 e4 c6 h6 f2 d5 a2 h7 Bd6 e5+ Ke7 Kg5 f5 h5 f4 e6 f3 h6 Qc7 Nd2 Na6 b8N Nf6 b7 Ne8 b6 Nf6 Ne4 Ne8 Qa4 Nb4 Qb5 Qd8 Ne2 Bh2 Na6 Qc7 b8R Qb7 Nd6 Bg1 Rh4 Rf8 Bg2 f1B h8B Bd4 h7 f2 Bg7 Bc3 h8N Rf6 Rb1 a1Q Rf4 Qa5 Nhf7 Na2 Rc4 Rf4 Nb4 Rf3 Ra8 Qb8 Nb7 Nd6 Rb2 Rf6 Rd2 Rf3 Rdd4 Rf6 Be4 Bh3 Bg2 f1Q Rf4 Qe1 Ra7 Bg4 Bf8+ Ke8 e7 Rf5+ Kh6 Qd2 Kh7 Qa4 Kg8 Qb3 Ra4 Qa7 Rfe4 Qa6 Re5 Qa5 Kg7 Rh5 Kf6 Rg5 Nc5 Bb7 Rf4 Ba8 b7 Rh5 b8B Rg5 Nb7 Rh5 Ng5 Nf7 Bc7 Nh8 Nf7 Qb1 Nc2 Qb3 Rac4 Rg5 Nb4 Rh5 Bb6 d6 Bg1 Kd7 e8B+ Kc8 Bh2 Rf5+ Ke6 Kc7 Nh6 Kc8 Bd7+ Kc7 Nc5 Kd8 Bc8 Ke8 Bg7 Kd8 Nb7+ Ke8 Bf6 Kf8 Be7+ Kg7 Nf7 Kh7 Kd7 Kg7 Bf8+ Kf6 Nfd8 Kg5 Nf7+ Kh4 Ke7 Kh5 Nh6 Kg5 Nf7+
1BN3r1/p3qb2/2pRrN2/2Pq3R/r2k1K1B/1Nn2RQB/R1p1b3/4BBb1 b - - 0 1 illegal: No proof kernel
NRBr3B/3p4/rqNR3p/2B5/nnQb1R1P/N1q1N2K/R2pR3/1n2r1k1 b - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 gxf5 b5 axb5 Nh6 e4 Ng4 f4 Nh6 f6 Kf7 e5 Ke6 f5+ Kd5 Ra6 Ng8 Ra1 Bb7 e6 Kd6 Bg5 Bf3 Bd2 Bh5 Bc1 Bf7 exf7 Qc7 Nd2 Qc8 Nb1 Qd8 Kf2 Kc5 Kg2 g5 b4+ Kd5 h4 Ke4 c4 a5 b6 e5 c5 g4 b7 g3 b5 d3 b6 a4 c6 a3 c7 h6 c8N a2 Rh2 d2 Ne2 Ke3 Qa4 e4 Bb2 Ra6 Nf4 Bg7 f8B Ne7 f7 Bc3 f6 Rg8 Na3 Ng6 Bc5+ Bd4 f8R Ne7 f7 Nbc6 b8N Nd5 b7 Nc3 Kh3 g2 Nd5+ Kf2 Qc4 e3 Ncb6 e2 Na8 e1R Ne3 Nb4 Nc6 Kg1 b8R Na4 Rb6 Qc7 Rfb8 Rd8 f8R Qe5 Rf4 Qg7 Rc1 a1N Rc2 Qe5 Bc3 Qh8 Ra2 Nac2 Ne7 Qg7 Rd6 Qe5 Nc6 Qg7 Nb5 Na3 Bd3 Nb1 Na3 Ra5 Qb3 Ra7 Ba6 Qe5 Bc8 Ra6 Bb6 Qc5 Bb2 Qc1 Qc4 Qc3 Bc5 Bh8 Qe2 Qd3 Bb6 Bg7 Bf6 Qc3 Qc4 Bh8 Re4 Kf2 Bbd4 Kf3 Nf1 g1Q Rhe2 Bg7 Ba7 Qc5 Bb6 Qb5 Bc5 Qb6 Ne3 Bh8 Bg5 Bd4 Bf6 Rg1 Re1 Kf2 Bh8 Rf1 Re2+ Kg1 Rf4 Rc1 Na5 Re1 Nc6
1Nr2nkB/3bn2R/3n1N2/q1R1qq2/pQB2r2/1BB2B2/Ppp1RR2/1N2K3 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 gxh4 c4 d5 cxd5 f5 exf5 a4 Ba3 Bg7 Bc1 Bd4 Qc2 Bb6 Qd1 Ba5 bxa5 Kf8 Rh2 Kf7 Rh1 Ke8 g4 Kf8 d4 c5 f4 h5 f6 b5 f5 e5 f7 c4 d6 c3 a6 e4 d7 h3 g5 e3 a7 b4 g6 c2 g7+ Ke7 f8B+ Kf7 d5 e2 f6 h2 d6 b3 Qd2 b2 Qb4 h4 Bd2 h3 Bc3 Qc7 d8R Nc6 d7 Rb8 a8B Nd4 Bf3 Ne7 g8B+ Kg6 f7 Qe5 Bg7 Rh4 f8R Rf4 Rfe8 Ne6 Bh8 Nf8 Bc4 Kh7 Bb3 Bb7 Rc8 Bc6 d8N Bd7 Rc5 Rc8 Nc6 Qf5 Kd2 Qe5 Nb8 e1Q+ Kd3 Q1e4+ Kd2 Q4d5+ Bd3+ Kg8 Ne2 Qf7 Rf1 h1Q Bdc4 h2 Rf2 Qg2 Ke1 h1N Rd8 Ng3 Re8 Ng6 Re6 Ne7 Rh6 Ne4 Rh7 Rf6 Nf4 Qgg5 Nd5 Rf4 Nd2 Qfe6 Rd1 Qh5 Nb1 Q6f5 Rdd2 Nd6+ Rde2 Qe8 Bd2 Qd8 Bc3 Qa5 Nf6#
n3N1q1/QQb1Bk2/1p1bp1qN/4BbQ1/pR1QR1B1/1r6/P3KQn1/3n3Q b - - 0 1 illegal: No possible last move
N3bNb1/1N2pb2/2pr4/p1b2N2/k1NRB2R/1qP1B1B1/3Q2nN/n2bQ1K1 b - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 gxf4 h4 d5 exd5 Na6 g4 Bb7 g5 Bc8 h5 Nb8 Ke2 Ra6 Ke1 Rg6 hxg6 Bh3 Be2 Bg4 Bf1 Bc8 Kf2 Kd7 b4 f5 d4 h5 g7 c6 d6 f3 b6 f4 b5 h4 c3 h3 b7 h2 d5 Nf6 g8N Qc7 b6 Rh5 g6 Re5 g7 Nh5 Qd2 Re6 Ra4 Na6 b8B Qb7 Nh6 Nc5 g8Q Bg7 Bg2 Nb3 Rd4 Na1 Nf5 Rh6 Kf1 f2 Be4 Be5 Kg2 f1B+ Kf2 f3 Qg3 Bd3 Na3 Bc2 Nc4 Bd1 Kf1 f2 Nf3 Kd8 d7 Bd6 Qg1 Bb4 Bg3 Bc5 Kg2 Qb8 b7 Rd6 Qge1 Kc7 d8N f1B+ Kf2 Nf4 Ne6+ Kd7 Nc7 Ng2 Na8 Bd3 Rf1 h1B Nh2 Bb1 Kg1 Ba2 Rf4 Bab3 Nab6+ Kc7 Rh4 Bd7 Na8+ Kd8 Qc2 Be8 Be3 Kd7 Nab6+ Kc7 Qcd2 Qa7 b8N Qb7 N8d7 Ba2 Na4 Qb3 Nab6 Kb7 Na8 Ka6 Nf8 Kb5 Bgf4 Ka4 Be5 Rh6 d6 Rf6 d7 Rd6 d8N Qb4 Na3 Baf7 Nc4 Qb3 Nb7 Bg8 Nd8 Nf4 Bc2 Bhd5 Be4 Bdf7 Nb7 Ng2 Bg3
1R4R1/1QRR2bb/rR5p/4q2N/Q1rrBp2/p6P/2Nb1nKB/R1k2Nb1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 Nc6 cxd5 Nce7 Ra4 exf4 Ra1 f3 Ra6 f4 Ra1 Nf5 gxf5 Qe7 Ra5 Qg5 Ra1 Qd8 Kf2 Kd7 b4 Kd6 e4 Ke5 d4+ Kd6 b6 c5 e5+ Kd7 b7 a5 b8R g5 d6 Kc6 e6 Kd5 d7 Ke4 f6 a4 f7 h6 b5 a3 e7 g4 e8N c4 b6 c3 h3 c2 b7 Rh7 d5 Ra5 d6 Nf6 Bg2 Rg5 Nd2+ Kd3 Ne2 Ra5 Nd4 Qe7 d8Q Rh8 d7 Nh5 Qb6 Ng3 d8R Ra6 Ng7 Bf5 Nh5 Bg7 f8R Qe5 Ra2 Bh7 Rd7 Ne4+ Kf1 f2 Rg8 g3 Qb1 Nc5 Be4+ Kc3 Qb5 Nd3 Kg2 f1R Rg1 Rf3 Nf1 Nf2 Be3 c1B Nc2 Bd2 Ba7 Rd3 Rgc8+ Rc6 Rcc7 Rd4 Qdb1 Rcc4 Qa4 Re8 Qb6 Re7 Rg8 Re8 b8R Re6 Qb7 Ra6 Bb6 Rd5 Be3 Rd4 Rh1 Nd3 Bg1 Nf2 Bf3 Kd3 Be4+ Ke2 Bh2 Kd1 Kf3 g2 Rg1 Ng4 Rh1 g1B Kg2 Bge3 Rg1 Kc1 Rh1 Nf2 Rg1 Bf6 Rg6 Bh8 Rb6 Bg7 Bd3 Bh8 Kf3 Nh1 Rgg8 Bg7 Kg2 Bg1 Be4 Nf2 Ra1#
1QB1BN2/2B4K/b2RQ2n/1nN3rk/3B1p2/B2p1P1q/1qp3nR/1B3Qbn b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 d4 g5 dxe5 Nh6 a4 Ba6 h4 gxh4 b6 Bc8 b7 Ra6 b5 Rc6 b6 Rc5 Nh3 Rb5 axb5 a4 Ng1 Ng8 Kd2 h5 Ke3 c5 Ke4 d6 g4 a3 f3 c4 g5 a2 g6 f6 e6 d5+ Kf5 d4 e4 d3 g7 h3 Kg6 h2 e5 h4 e7 f5 Bh3 f4 Qf1 c3 Nd2 c2 Ba3 Qd5 Ne2 Qc5 Nb3 Na6 b8Q Nh6 g8B Rh7 b7 Nc7 b6 Nd5 Ned4 Qc3 Ne6 Ne3 Nbc5 Qb2 Bg4 Bg7 Nf8 h3 Rb1 a1N Ba2 Bf6 Re1 Bh8 Bb1 Ng2 Re4 Nb3 Rd4 Bf6 Rd6 Nd4 Be6 Rf7 Bg4 Bg7 Kh7 Nb5 Be6 Rf6 Bf5 Kf7 e8B+ Ke7 e6 Rg6 Bg4 Kf6 e7+ Kg5 Bf5 Be6 Bg4 Bc4 Bc8 Kh5 Qc7 Nd4 b8B Ba6 b7 Nb5 Ba7 Bd4 b8B Bg1 Qb7 Qc1 Bc7 Qb2 Bc6 Rg5 e8Q+ Nf7 Qe3 Nh6 Qb8 Bf2 Rg1 h1Q Qe6 Qh2 Rh1 Bg1 Ncd7 Qg3 Bd4 h2 Nc5 Qh3 B6d7 Be3 Rg1 h1N Bc6 Ne1 Rg2 Bg1 Rh2 Ng2 Be8+
bN1R3B/6p1/1R3Rkn/p1bq2N1/Q1pRBq2/P1R1Bb2/RK1b4/4nQ1r b - - 0 1 illegal: No possible last move, all moves rejected
kB2RK2/5bBB/NQn2PQ1/1NB1pp1q/1prp4/2b4B/4R1N1/n2B2nr b - - 0 1 illegal: No proof kernel
1Q2rQ1R/1K5p/p2Qr1n1/4Qb2/nnNB1N2/1NPppBb1/qk5R/3Q1Q2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 d3 Kd5 d2 f4 d6 g4 e4 b4 e3 g6+ Kf6 g7 Qe8 b6 Qd7 b5 Be7 b7 Qc7 g5+ Kf7 b6 Bf6 g6+ Ke7 Nh3 Na6 b8Q Nh6 g8N+ Kd7 b7 Be7 f6 Bd8 g7 Nf5 f7 Ng3 f8Q Be7 f5 Bf6 Be2 Bc3 f6 Be5 f7 Nh5 Bf3 Bg3 Nf4 Qc3 Qf1 d1N Nd2 Qb2 Rh2 Qa2+ Nb3 Nb2 c3 Na4 Ba3 Bh4 Bc5 Bg3 Bd4 Nb4+ Ke4 Kc6 Nf6 Bg4 g8Q d5+ Ke5 Be6 Ne4 Bf5 Ned2 a6 Qg4 Rg8 Rb1 Rg6 Qh8 Rf6 f8Q Rg6 Qbd8 Rc8 Qde7 Re8 b8Q Rh6 Qgh3 Rf6 Qd1 Rg6 Qd6+ Kb5 Qhg8 Nb6 Qee6 Ka4 Qhf1 Ka3 Qh8 Na4 Qb8 Rg5 Kd6 Rg6 Kc7 Rf6 Qed6 Rfe6 Nh3 Nf4 Kb7 Ng6 Nf4 Rd8 Qhe5 Rde8 Bc5 d4 Rb2 d3 Bd4 Ne7 Rg2 Bh4 Rg8 Ng6 Rh8 Be1 Ne4 Bh4 Rh2 Bg3 Ned2 Kb2 Nc4#
2B1bn2/bBB1Npr1/R1p1r1Bk/1Q2p1p1/1BR4B/1q6/r3N1KP/QR5n b - - 0 1 illegal: No proof kernel
2Qb1BBq/1B1Nn2R/1r2R2p/K3B1P1/1N4qk/1bR5/1pN1ppR1/2r1B1n1 b - - 0 1 illegal: No proof kernel
2r1R3/1b5P/1B2n1R1/3p1K1p/pN2BRR1/n1QNb2q/k1pB2RB/1q1N1r2 b - - 0 1 illegal: No proof kernel
1KN1B2n/2R2pk1/N2rrp2/pR6/2BbbPBR/p1r3Q1/2qR3N/b2BB3 b - - 0 1 illegal: Other
1N1Bn2B/1pN5/2r1B2q/1Pkn4/rN1p1QNQ/1Kp1RNq1/p4n2/2b1N1R1 b - - 0 1 illegal: No proof kernel
r1q2knq/qpN1R1n1/2p3Qp/1Nr5/1Q2QB2/Q1P5/p1K1Q2R/1BBQ1b2 b - - 0 1 illegal: No proof kernel
qkB4N/1r2RppQ/N6n/K1pRr3/8/nq2prPN/1QN2bN1/2BNR3 b - - 0 1 illegal: No possible last move, all moves rejected
2RB2k1/b2pN1NN/b1n1NnNR/3pr1p1/2pR4/K5P1/B1Rn3Q/r1B4b b - - 0 1 illegal: No proof kernel
B1R1b1Nn/N3rp1B/6p1/1B1pBRN1/n1kNpP1K/6Q1/r2b3N/4Rb1r b - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 dxc5 h5 gxh5 Bh3 b4 axb4 e5 Qd6 exd6 Bc8 c4 Kd7 f4 Kc6 Kf2 b5 Kg3 e5 a4 e4 h4 b3 h6 b4 d7 b2 d8N+ Kd7 h5 b3 h7 Ra5 c6+ Kd6 c7 Kc5 h6 Bg4 c8B Ne7 Ne2 Ra6 a5 Bh3 Ne6+ Kb4 c5 Ra7 c6 Rc7 a6 Ra7 c7 Nec6 Qd3 Na5 N2d4 Rb7 a7 Rg8 a8B Rb6 h8R Bc5 h7 Na6 Kh4 Re8 Ng5 Nc4 Qg3 Bd7 Nd2 b1R Bb2 Re7 N2f3 Be8 Nh2 Ne5 Bf5 Rd1 B1h3 Kc4 c8N Bb4 Na7 Nc5 Ra6 Bc3 Re1 Na4 Bd7 Rb8 Bdc6 Bd2 Bf5 Rb6 Bc3 b2 Rg8 b1B h8N Bc2 Bh7 Bd3 Ng6 Rb2 Rb6 Ra2 Bb2 Rc7 Ne7 Bf1 Rb8 Rc1 Rc8 Rb1 Rh8 Rba1 Ng8 Re7 Bf5 Rb1 Rh5 Rd1 Bh7 Ng6+ Kg4 Nh8 Kh4 g6 Ngf3 Bc1 Rf5 Be3 Ng5 Rb1 Nde6 Bc1 Be5 Bd2 Nd4 Bg2 Re3 Rh1 Re1 Bf1 Bb5+
1N2b2b/4R1n1/n2bB3/k3ppRQ/B2b1qRp/1p2N1NP/1N2K2B/1Rr2N2 b - - 0 1 legal: proof: c4 b5 e4 d5 d4 dxc4 b4 g5 f4 a5 bxa5 Bd7 fxg5 Nf6 d5 Ra6 e5 Rd6 exd6 Ng8 Kf2 Bg4 Ke1 Bc8 a4 Kd7 g4 e5 h3 f5 g6 c5 a6 h5 g5 b4 a7 b3 a8N c3 g7 c4 a5 c2 a6 c3 a7 h4 g6 Qf6 Ne2 Kd8 d7 Bb7 Bf4 c1B Rg1 c2 Nd2 Qe6 Bh2 Rh7 Rb1 Qe7 Ng3 Qc5 Bb5 Na6 Ndf1 Bh6 Nb6 Kc7 d8N c1B a8N+ Kd6 Na4 Bc8 N8b6 Kc7 d6+ Kb8 d7 Kc7 Qh5 Qb4+ Ke2 Bce3 Nc4 Bd6 Nc6 Nf6 d8R Bd4 g8B Bg7 Be6 Ne8 Nce3 Bh8 g7 Bd7 g8R Ng7 Nb8 Be8 Nb2 Kb6 Rd7 Ka5 Ba4 Rh6 Ra7 Rf6 Rd7 Rf7 Rb7 Rc7 Rg2 Rc1 Re7 Rd1 Rf2 Rc1 Rf4 Bb6 Rg4 Qf4 Bc8 Bd4 Bcd7 Ne6 R8g5 Ng7 Be6
N1Q1N1NB/3p2p1/1N1K3p/1rnBp2P/2Q2Rn1/7b/3NnQrb/N1k2nR1 b - - 0 1 illegal: No proof kernel
2RR1B2/nkbRNB2/1r2B2Q/r1p5/q1p2P1B/2BN1p2/pp1K3n/3B1bQ1 b - - 0 1 illegal: No proof kernel
2r3QR/4pN2/1n3qpp/P1k4b/r2RR2R/2b1NR1K/npp3BR/BN4Q1 b - - 0 1 illegal: No proof kernel
3Q2KQ/2pkPpb1/r1pp3Q/2qR3n/1NNR1Q2/B5Q1/Q2pb1B1/1r1R3n b - - 0 1 illegal: Other
Rq1Q1qr1/B1R1b2N/Bp2pB1p/1nnN3P/4N1RR/R2k1pK1/3r3p/5N2 b - - 0 1 illegal: No proof kernel
5Rb1/Q3K3/2r1pr1R/N1r4R/2n1N1N1/3qPnN1/R2B1BQb/1kn1N3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 g5 fxg5 Bd7 c4 Be6 cxd5 Bc8 gxh5 a5 b4 c6 bxa5 Bh6 b6 Ra6 Bh3 Ra8 Bf5 Bg7 Bd3 Bf8 Bb5 cxb5 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kc4 h4 f5 d4 e6 g6 f4 d6 f3 b7 b4 e3 b3 g7 f2 d7 f1R a6 b2 d5 Rf6 h6 Bb4 h7 Rf7 a7 Rf8 d6 Rf6 h5 Qc7 d8N Qe7 d7 Rf1 h6 Qc5+ Qd5+ Kb5 Nd2 b1N Rh5 Rf2 Ndf3 Nc3 Bd2 Na2 Nc6 Ka4 d8B Ka3 Bh4 Kb2 Ne1 Bd7 Na5 Qc4 Ne2 Nf6 g8N Ne8 Nf6 Qd3 Ng4 Nc1 Ra2+ Kb1 Qg2 Nd6 Ng3 Rc8 h8R Rc6 h7 Be8 Rf8 Rf6 h8R Bf7 R8h7 Bg8 R7h6 Na6 b8N Nc5 Nd7 Rac8 a8Q Nce4 Qa7 Ng5 Nc5 R8c7 Nce4 Ba3 Nf5 Nc4+ Kf4 Nf3 Bf2 Ng1 Kg5 Bd6 Nfg3 Rc8 Nf5 Bh2 Nfg3 Rf7 Kg6 Nf3 Nh1 Rf5 Nhg3 Rfc5 Kf6 Rf5+ Ke7 Rf6 Rd5 Rc5 Rf5 R8c6 Rfh5
4bQBK/p1q1n1R1/3B2p1/2N2N1Q/PrQR1B1q/2k3B1/2n3n1/1r4BQ b - - 0 1 legal: proof: c4 c5 d4 b5 e4 f5 exf5 d5 cxd5 h5 g4 c4 gxh5 e6 b4 Bc5 bxc5 b4 d6 Qxd6 d5 b3 Qxb3 Qb6 Qd1 Qd8 Ke2 Kd7 Ke3 e5 Ke4 c3 f4 c2 h4 g6 a4 Ne7 f6 Rh7 c6+ Kd6 c7 Kc5 f5 Kb4 h6 Qf8 h5 Qg7 d6 Ng8 d7 Qf8 d8B Rd7 h7 Qf7 h8B Qe7 f7 Na6 f8Q Nh6 f6 Nf7 h6 Rd3 h7 Rd6 Nc3 Kb3 Qh5 Rd1 Bc4+ Kb4 Bf4 c1Q Nf3 Nb8 Nh4 Nd7 Nf5 Nh6 f7 Qc5 Bh4 Ng4 Bhg3 Rb8 Ba2 Ba6 c8Q Bb5 Re1 Qe7 Qc4+ Ka3 Rb1 Nb6 Rb4 Ne3 Bg7 Qf6 h8Q Nc2 Qh1 Nd5 Q8h5 Bd7 Bb3 Kb2 Rb7 Rd2 Rd1 Ne7 Bgh6 Rh2 Rd4 Be8 Be3 Qh8 Bg1 Rh4+ Bhf4 Rg4 Rc7 Qf6 Rb7 Qh4 Rbd7 Ng8 Kd5 e4 Ke6 e3 Ne4 e2 Nc5 e1N Rb7 Ne7 Rc7 Rg5 Kf6 Rb4 Kg7 Ng2 Kh8 Rg4 Qfh6 Rb7 f8B Rb6 Qd3 Rb5 Bg8 Rb3 Qf1 Kc3 Qg7 Rb1 Rcd7 Nc8 B8d6 Ne7 Qf8 Nc8 Rg7 Ne7 Bfe5 Rf4 Rd2+ Rd4 Bef4 Rdb4 Rd5 Qe3 Rd4 Qe5 Nd3 Qa5 Nc5 Qc7 Qc4+
3B1Q1B/B1NR3n/5Rnb/2Qpb1bB/5r2/Q1p4k/1P2q1N1/K2BQ1b1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 b5 a3 b4 axb4 hxg4 bxa5 Rh4 a6 Rh8 d3 c5 Ra3 Bb7 Ra1 Bc6 Bg2 Bb5 cxb5 c4 Bh3 c3 Bf1 Ra7 Qd2 Rc7 Qd1 Rc4 dxc4 Rh7 Nh3 Rh5 Ng1 Rh8 f4 Kf7 h4 Kf6 h5 g5 a7 e5 a8B g3 c5 d6 c6 e4 b6 e3 c7 e2 c8Q g4 b7 g2 h6 g3 h7 Qe7 Ra6 Qe3 Nh3 g1B Na3 g2 Qc5 Qd3 Nb5 Qc4 Nc7 Nc6 b8B Qb3 Ba7 Nb8 Bf3 Nc6 Bh5 Kg7 f6+ Kh6 f7 d5 f5+ Be3 f6 g1B Nf4 Kg5 Ng2 Bd6 f8Q Qc2 f7 Ne5 Bd2 Be7 Rf6 Bd8 Qfe7 Qe4 f8Q Ng6 Qa4 Bf4 Qaa3 Qe3 Rh4 Be5 Rhf4 Qf3 Rd6+ Nf6 Rd7 Rg8 h8B Qe4 Qee8 Nh7 Be3 Bdf6 Bf2 Bg7 Rf6 Bh6 Bg3 Rg7 Bh2 Rf7 Qe6 Bed4 Bd6 Be5 Be7 Qd3 Bd8 Qc2 Nf4 Kh4 Bg2 Qe4 Bgf3 Kg3 Ng2 Qg4 Be4 Kh3 Bc2 Bge3 Bd1 Beg5 Kf2 e1B+ Kf1 Qf5+ Ke2 Qg4+ Kd3 Bf2 Kc2 Bg1 Qee8 Qc4 Kb1 Qf1 Ka1 Qe2 Rfd6 Rf4 Rf6 Bd6 Qe4 Be5 Qee3+ Rf3 Qf2 Rf4 Qe1
1k2Q2n/2q3r1/B1N1NN1q/nr1RQ1nN/N1P1QQbr/K1n1R3/8/2B1b3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 f4 e5 h4 g5 f6 d5 b6 Kd7 Kd2 e4 h6 d3 f5 g4 h5 d4 a6 g3 a7 g2 f7 Bd6 h7 Qe8 b7 Kc7 Ra3 Be6 Qf3 Bf8 h6 Ne7 f6 Bg4 Nc3 Qa4 Rh5 Qc4 Nh3 g1Q Nf4 Qc5 Na4 Nbc6 b8N Na5 Nd7 Rg8 h8N e3+ Kd1 d2 h7 Bg7 f8N Qh2 f7 Ng6 c3 e2+ Kc2 e1N+ Kb2 d3 Rd5 d1R+ Qe2 d2 Qe8 Rc8 Ba6 Rb8+ Rb3 Rb4 Ka3 Nf3 c4 Ng5 Re3 Rh1 Qe4 d1N a8Q Qh5 Qae8 Bc3 Q8e5+ Qd6 Qe8 Be1 N8e6+ Kc6 f8Q Rg7 Qf6 Nc3 Nf7 Qc7 Qff5 Rb5 h8Q Rh4 Qf6 Qh6 Nh5 Rh7 Qhg7 Nh8 Qff4 Bd2 Qgd4 Be1 Qde5 Rg7 Ndf6+ Qd7 Nac5 Kb6 Nfd8 Ka7 Na4 Qc7 Rf3 Ka8 Re3 Kb8 Nc6#
1Bn1Rn2/2B2QQQ/rRN2b2/Q2Kb1nN/6b1/rP1b1Q2/2nq1RRk/8 b - - 0 1 illegal: No possible last move, all moves rejected
1rkqq3/3Q1RKN/3r4/N1BnrQ2/rb2Pn2/3N1Q2/N2B4/nR1rQ1N1 b - - 0 1 illegal: No possible last move, all moves rejected
RB1B4/7N/qR2n1QN/1n4bB/3kP1nn/1K1B2Q1/1NNbn2q/r2bN3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 b4 Ke5 d3 a5 Kd2 f5 Kc3 h5 b6 c5 d6 f3 b7 h4 g6 f2 d7 h3 g5 h2 b5 a4 b6 c4 g7 a3 g6 a2 Bg5 f4 Qg4 f3 Na3 Ne7 g8B Nbc6 b8Q+ Qc7 d8N Bh6 g7 Ng6 b7 Nd4 Ne6 Nh4 Nf8 Ne6 Bd8 Bg5 Bf7 Ra4 Kb2 c3+ Kb3 c2 g8N c1B Bh5 Kd4 Nh7 Bcd2 Nh6 Re8 Be2 f1Q Qf5 f2 Qg6 Rc4 Rb1 Rc2 Nf3+ Kc5 Ne1 Kd4 Rg1 h1N Rg4 Qh2 Qg3 Re7 b8B Ra7 Rf4 Bd7 Rf5 Ra4 Ra5 Be8 Ra8 Ra7 Bd1 Qe2 Rb2 f1N Rb1 Nf2 Rb2 Qf3 Be2 Qf5 Rb1 Qa5 Rb2 Qa6 Rb1 Kc5 Rb2 Ng4 d4+ Kc6 d5+ Kc5 d6 Kd4 Bd3 a1N+ Ka2 Ba4 d7 Rc1 Rb7 Bd1 Rb6 Nc2 Kb3 Rc7 Nf7 Rc6 Nd6 Ra1 Ndc4 Rc5 Nb2 Rc8 Qf3 Ng3 Qf4 Ne2 Qg3 Ng1 Bdc7 Ne2 d8N Qg1 Nf7 Qh2 Bd8 Rc7 Nh6 Rc4 Nb1 Na3+ Bc2 Nb5 Na3 Rc1 Ka2 Rc3 Bd3 R3c2 Kb3 Ra1 Naxc2+
2q1R3/1N1q4/1N3Q2/2rBPrQN/2rR1b2/n1N1rBqk/B2B3n/r4N1K b - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 a5 f4 g5 hxg5 e5 a4 Bd7 axb5 exf4 b3 a4 b6 a3 Nh3 Nh6 Ng1 Ba4 bxa4 Ng8 Kf2 Kd7 g4 h5 Kg2 f5 d4 c5 e4 h4 b7 c4 e5 c3 a5 c2 g6 a2 a6 Rh7 a7 Ba3 d6 Ke6 d7 Na6 b8N Nf6 g7 Nc7 g8N Nb5 g5 Ng4 Ne2 h3+ Kg1 f3 g6 f4 d5+ Kf5 d6 Qc7 d8Q Rh4 Nd7 Rc8 a8B Qc3 Be3 c1Q g7 Qe1 Nd2 Qg3+ Bg2 h2+ Kf1 f2 Ngf6 Qc3 g8B Bc1 Nh5 Qc7 Rb1 a1R Ba2 Na3 Rb8 Qc5 Rg1 h1Q Nc3 Qhh3 Qf3 Qd5 Nb6 Rc5 Qg8 Qe6 Re8 Qc8 B8d5 Nh2+ Ke2 Qhg4 Rd1 f1R Bh1 Qg7 Qf2 Kg4 d7 Kh3 d8N Qh7 Nb7 Qhd7 Qg5 Rg1 Qf3 Rg2+ Qf2 f3+ Ke1 Rhc4 Bf4 Ng4 Kf1 Rh2 Qg1 Re2 Qf2 Qh4 Kg1 Nh2 Qg8 Qg3+ Bg2+ Kh4 Kh1 Ree4 Qg7 Re2 Qe3 f2 Qf6+ Kg4 Bge4 Kh3 Bh6 f1R+ Qg1 Rf5 Bf3 Qe1 Nf1 Bd2 Qgg7 Qg3 Be3 Re1 Qgg5 Bc1 Rd4 Re2 Bf2 Bf4 Be1 Re3 Bd2
1n2r1b1/Nb1q4/2n2K2/b3QP1k/2q3B1/n4R1n/RRq2B2/1QR1QNQR b - - 0 1 illegal: No possible last move
1R1QQ1N1/4QK2/r1bNQRr1/1Pn4r/3rrBN1/1Q3rb1/2B1q1N1/3k1b2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 a5 f4 a4 b4 c6 b6 h3 b5 a3 g5 a2 f6 h2 g6 h4 f5 h3 g7 Na6 f7 Nf6 g8N Rh6 b7 Rg6 b8N Nc5 Nd7 Ng4 f6 Ra3 Qb3 Ne3 Bd3 Qe8 Ne5 Nc2+ Kc4 e6 Ng4 e5 Nc3 e4 Nf3 e3 Rf1 h1B Nh4 h2 Ng2 e2 Rf4 Be7 f8Q e1R f7 Ra6 Qg7 Bh4 Qh6 Bg3 f8Q+ Qe7 Qf7 Qe2 Qe8 Rf1 Rf8 Rf3 Rb1 a1R Ne4+ Kc7 d6+ Kb6 d7 Ka5 Nd6 Ra4+ Kc3 Rd4 d8Q+ Rb6 Qdh4 Ra6 Qhe7 Be6 Qe3 Bc4 Bf5 Re4 d4 Bd3 Qbe6 Ka4 d5 Bc4 Bd2 Ka3 Re1 Ka2 Bc1 Kb1 Rf1 Rd4 Rf2 Re4 Qd3 Rd4 Bf4 Re4 Be5 Kc1 Qe3+ Kd1 Bf4 Rd4 Bd3 Nb4 Bb1 Nc2 Nf7 Re4 d6 Bd3 d7 Rd4 Ne1 Bg2 d8Q h1R Nd6 Rh5 Qb3 Bf1 Ng2 Be4 Nf7 Nb7 Qee6 c5 Nd6 Bc6 Q6e7 Rda4 Qbe6 c4 Rf6 Nc5 Rf8 Nb4 Kd4 c3 Qb3+ c2 Q3e4 Rh1 Ke5 Rh7 Qee3 Rh3 Qbe6 c1R Kf5 Rc4 Qb3+ Nc2 Rf6 Rgh6 Rf8 R6h5+ Kg6 Re4 Rf6 Rad4 Kf7 Qe1 Re2 Rh6 Re3 Rg6 Rc3 Rh4 Rc4 Qe2 Ra4 Rb6 Ra8 Rh5 Rb8 Ra6 Bxc2+
2rRKNB1/q1k1n3/2N2RN1/NQ2Brr1/q6r/5r1b/RP3Qr1/R1n1R3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kf3 a5 Ke4 h5 Ke5 c5 d4 f3 f6 f2 d6 a4 b6 h4 g7 e6 d5 h3 f7 a3 g6 c4 b7 h2 Bf4 c3 Nh3 a2 Qd4 c2 Na3 c1R Bc4 f1R Qf2 Ne7 Kf6 e5 g8R e4 g7 e3 Be5 e2 Rf8 e1R g8R Na6 b8Q Rc2 Nf4 Nc5 Ng6 Qc7 Qb5+ Qc6 Bb3 Nd3 Nc4 Rh4 Na5 Re3 Rg1 h1R Kg7 Rb1 Re1 Rf3 Rh8 Rg4 Rh4 Rg5 Ra4 Rh4 Bc4 Ba6 Ra3 Re8 Ra4 Kd8 d7 Nc1 Bb3 Bc8 Bc4 Qd6 Bb3 Kc7 d8N Bh3 Ndc6 Rc8 Bc4 Kd7 Ra3 Qb8 d6 Qa7 Bd5 Rc5 Bb3 Rd5 Ra4 Ke6 d7 Rg2 d8R Rf5 Rh8 Rfg5 Rdf8 Kd7 Rh6 Rd3 Re8 Rf3 Kf8 Ne2 Bc4 Rd1 Bb3 Nc1 Ra3 Rd6 Rd8+ Kc7 Ke8 Rff5 f8N Rf3 Rb1 a1Q Bg8 Qa2 Ra4 Qb3 Raa1 Qa4 Ra2 Rff5 Rba1 Rf3 Bc3 Rdf6 Bd4 R3f5 Be5+ Rd6 Nf4 Nd5 Re6 Ne7 N4g6 Rf3 Bc3 Rdd5 Rf6 Rdf5 Be5+
8/4k1nb/Rn2QNRn/NR2bR1r/4Q2R/1Br2b1n/KB3P2/n2nNN2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 f5 e4 d5 exf5 b5 axb5 a4 cxd5 Qd6 Qe2 Qa6 Qd1 Qa5 bxa5 Ba6 Qb3 Bb7 Qd1 Bc8 d4 c5 Kd2 e5 Kc3 h5 Kb2 e4 g4 a3+ Ka2 e3 b6 c4 a6 c3 d6 e2 d5 e1N a7 c2 d7+ Kf7 d8N+ Ke8 b7 h3 d6 h4 f6 h2 g5 h3 g6 Ng2 g7 Nd7 b8R Nh6 g8N Bg7 Qe1+ Ne3 Nb7 Nb6 d7+ Kf8 f7 Be5 Bb2 Nd1 Nf6 Ke7 d8R Bf5 Ba6 Bh7 Rd6 Rc8 f8R Rc3 Rbd8 Rac8 a8Q R8c5 Na5 Rb5 Qee4 Rbc5 Nd2 c1N+ Kb1 Rd5 Qc6 Ne2 Rb8 Nf4 Ngf3 Rdc5 Ka2 Rb5 Rf1 h1B Ne1 Bf3 Rh1 h2 Nf1 Nh3 Qc8 Rd5 Bc4 Rc5 Bb3 Rb5 Rg1 h1N Rg4 Ng3 Rh4 Nh5 Rc6 Ng7 Qcf5 Nc8 Ra6 Rd5 Rb5 Nb6 Rc1 Re3 Rc6 Rc3 Ng4 Rdc5 Rg6 Rd5 Qc8 Rdc5 Rf5 Rd5 Ka1 a2 Qe6+ Kd8 Bc4 Bb8 Rf7 Rh5 Rff5 Bc7 Nf6 Be5 Bc1 Ne3 Kb2 a1N Ka2 Nd1 Bd5 Na4 Bb3 Nb6 Qc8+ Ke7 Bb2 Ne6 Qcc4 Ng7 Qe6+
1b3Rb1/2B4q/1K1B1q2/Q1Bq2P1/4kNn1/r3q2R/1NNn2Q1/bbB2NN1 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f5 Ba6 f7+ Kd7 f6 Kd6 cxd3 Bc8 d4 Ke6 d5+ Kd7 h4 a6 g4 Ra7 g5 Bb7 Bd3 Bc8 Bf5+ gxf5 g6 Ra8 Ke2 a5 Kf2 Ra6 Ke1 Rc6 Rh2 Rc4 Rh3 Rg4 Rh1 Rg5 hxg5 Bh6 Nc3 Bg7 Nb1 Bf8 Ke2 Kd6 Kd3 Ke5 Kc4 c5 d4+ Ke4 b4 h5 g7 e5 d6 h4 d5 h3 b6 a4 Kb5 h2 b7 a3 d7 a2 d6 f4 Qg4 c4 Na3 c3 Nc4 c2 Nb2 Rh7 Qg2+ f3 Kc5 Qa5+ b5 Rh3 d8Q Nc6 b8B Bf5 Bc7 Nh6 g8N Ng4 Ne7 Nd4 d7 Nb3+ Kc6 Nd2 b6 Qa6 Nd5 Bd6 f8B Rg3 Rb1 a1B f7 Bh7 Be7 Bg8 Ne3 Qa5 b7 Qd5+ Kb6 Rh3 Qe2 f2 b8B f1Q f8N Qf6 Nf1+ Re3 Qf2 Ra3 Qg2+ Kf5 Nh7 e4 Nf8 e3 Ng6 e2 Nf4 e1Q Ba7 Be5+ Bed6 Qee4 Qa8 Qed3 d8N Qh3 Nc6 Qh7 Qg3 Ke4 Nd4 Qh4 Qc3 Qh7 Qa5 Nb3 Be3 c1Q Nc2 Qe1 Bc1 Nd2 Nc4 Qg3 Rb3 Qe1 Rh3 Qg3 Nb2 Qc3 Nge2 Qd3 Rg1 h1B Rgg3 Qf3 Ng1 Qd3 Rf3 Qe3+ Ka6 Bg2 Rf2 Bf3 Bc5 Be2+ Kb6 Bd3 Nd4 Bb1 Nc2 Qe6 Nfe2 Bg3 Rf8 Qf6 Nf4 Rc3 Ne6 Kf5 Be7 Qh1 Bcd8 Bb8 Bc7 Ra3 Bed6 Qhe4 Nf4 Qe5 Qh1 Qd5 Qh2 Ke4 Qg2+
7n/3q1q1N/bq1n2k1/2BPQQ1R/nQ2r3/1N2RKnB/qRQ1Rb2/4Q3 b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 h5 b4 c5 d4 e5 f6 e4 g7 Kf7 d6 a4 d5 a3 d7 e3 b6 a2 b7 c4 b5 c3 b6 c2 Qd3 h4 Bh3 Ne7 g8R Nf5 Ba3 c1N+ Kf3 e2 Qc2 e1Q Bc5 Nd6 Nd2 Na6 b8Q Ne2 b7 Qb6 Rb1 a1Q d8R Qa2 Rb2 Be7 Rg6 Re8 Nb3 Qea5 Rh2 Q5a4 Rh6 Qd7 Rh5 Bf8 Rf2 Re4 Re8 Kg6 f7 Bg7 f8Q Bd4 Qc7 Be3 Rg2 Bf2 b8Q Bb7 Qe7 Bc8 Qe5 Bb7 Be6 h3 Bg4 h2 Nh3 h1N Rg3 Qb4 Qb6 Qba5 Qb4 Qb6 Rg2 Nhg3 Qe1 Qba5 Be6 Bc8 Qbb4 Qb6 Bg4 Nc3 Rh2 Nf7 Rg2 Nh8 Rh2 Bg1 Re2 Nc7 Re7 Ba6 Re3 Ne8 Re6+ Kf7 g6+ Kg8 g7 Kf7 Re7+ Kg6 Ng5 Na4 Bh3 Bf2 Nh7 Nd6 Re8 Qda7 g8Q+ Qg7 Qf8 Qd7 Kg2 f3+ Kh2 Qe6 Qff4 Qd7 Re2 Bd4 Re7 f2 Kg2 Be3 Kf3 f1Q+ Rf2 Qd3 Re2 Bf2+ Re3 Qf1 Re2 Ne8 Qfc1 Nd6 Q5c3 Ndf5 Qc1d2 Re3+ Kg4 Bg1 Re4 Nd6+ Re6+ Kf7 Qdd4 Qf6 Qf4 Bf2 Qcd4 Re5 Kf3 Kg7 Qdc3 Qff7 Qe3 Rf5 Re4 Re5 Q3c3 Kg6 R4e3+ Re4 Qcd4 Nf1 Qe5 Ng3 Qff5+
k1NNKnnQ/1B1NNB2/3PnbbN/4r1b1/2r4Q/6rQ/2R4r/1R3b1Q b - - 0 1 illegal: No possible last move, all moves rejected
q3NnN1/6BN/N1rBrb2/b1Q5/QbRP1q2/4n3/1QNp1RqQ/1K2k3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 g4 Ba6 gxh5 Bc8 d4 e4 e3 Bb7 Bc4 Bc8 Bd3 exd3 e4 Bd7 e5 Bf5 f3 Be4 fxe4 Ba3 Nf3 Bd6 Ng1 Bf8 Kd2 Ke7 b4 a5 h4 f5 h6 c5 h7 g5 e6 Kf6 e7 c4 e8N+ Kg6 e5 f4 h5+ Kf5 b6 Ke4 b7 f3 h6 f2 b5 f1Q b6 a4 d6 a3 d7 a2 e6 g4 e7 g3 Ba3 g2 Kc1 Ke3 Bd6 Kf2 Na3 c3 Nh3+ Ke3 Rh2 g1Q Rf2 c2 Nf6 Ra6 e8N Qgg2 Ng5 Ne7 Ng8 Nf5 Kb2 d2 Rc1 a1B+ Ka2 Qc8 d8Q Bg7 Qc7 Bf6 Qc5 Nd7 b8N Nf8 b7 Rc6 Na6 Qa8 b8Q Bc3 Qb2 Ba5 Rb1 c1B Qa4 Kd3 Nc2 Ne3 Ra1 Qe4 Kb1 Qf4 Ra3+ Bc3 Rb3 Qg2 Rb7 Ba5 Rb4 Ng4 Rc4 Ne3 Ne7 Rg8 h8Q Rg6 h7 Rh6 Ng8 Rg6 Qba1 Ba3 Qa2 B3b4 Qb2 Bfd8 Qhe5 Re6 h8B Be7 Nh7 Bf6 Rf3 Ke2 Bg7 Kd1 Qh5 Ke2 Qh2 Kd1 Rf1+ Ke2 Rf2+ Kd1 Na3+ Ke1 Nc2+
4Bb2/1Q2nr2/8/RRB1PNq1/RRNp1BQq/K2R1qr1/1n4bk/2Br4 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 axb5 e4 d4 cxd4 f3 Ba3 fxe4 Be7 e5 Bf8 Kd2 Ke7 h4 Ke6 c4 Kf5 Kc2 Kg4 Kb2 Kg3 e4 d5 h6 f5 a6 g5 b6 d3 a7 f4 b7 g4 e6 d2 h7 f3 h5 f2 c5 Qb6+ Bb5 f1Q h6 Qd8 c6 Nf6 c7 Nh5 e7 Nd7 b8R Bb7 e8R Ndf6 c8Q Bc5 Rh4 Rf8 h8B Qc7 h7 Qc4 Nf3 Qf4 Nd4 Qa4 Na3 Ng8 Nc4 Rf7 Rd8 Ne7 Be8 Qf3 Be5+ Nf4 h8B Kg2 Ra3 g3 Nf5 Nd3+ Ka2 Bd6 Bf4 Nb2 Bd4 Qb4 Qa4 d1R e5 Bc5 Rg4 Kh2 Qc7 Bc6 Rb5 Rc8 a8R Bd6 Bh6 g2 Raa5 g1Q Qb7 Qgg3 Re4 Qg5 Bc5 Qe1 Rd3 Qeh4 Ka3 Rc7 Rda8 Rc8 Bd7 Rg8 Be8 Rgg7 Nce3 Rg8 Reb4 d4 Nc4 Qff4 Qc2+ Bg2 Qe2 Qf3 R8a7 Qgf4 Raa4 Rg3 R7a5 Qfg5 Qee4 Ng8 Qg4 Bf8 Bf4 Ne7 Bc1 Qg7 Bhd2 Qgg5 Bf4
2rqb3/1B3B1R/1p2P3/Nn2K3/2b2RrQ/2kRBbNR/1n3R1n/q4B1Q b - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 gxf5 d5 cxd5 e5 fxe5 g4 h4 Be7 b4 Bg5 hxg5 axb4 Kf2 Kd7 Ke3 c5 Ke4 h5 a4 h4 d4 b3 e6+ Kd6 e7 h3 e8R h2 g6 g3 a5 g2 f6 b6 a6 b2 f7 c4 f8R c3 a7 c2 g7 Ba6 Ra4 Ne7 g8B Rh7 Rf2 Qd7 Nd2 b1B Nb3 Rh5 Be3 Bc4 Bf7 Nf5 Na5 Rg5 Rh8 Nc6 Rh7 Rc8 a8B Ne5 Bb7 c1Q+ Kf4 Qd8 Rb4 Ke7 d6+ Kf6 d7 Nd6 d5 Nb5 d6 Bg6 Ra4 Qa1 Qb1 Qf8 d8R Qe8 d7 Nd3+ Kf3 Nb2 Kf4 Bb3 Rd4 Bc4 Rd3 Qe7 Rf8 Bh5 d8Q Rg4+ Kf3 Ke5 Qd1 Qc5 Qh4 Qd4 Qe1 Kd6 Qb1 Kc5 Qc1 Kb4 Qb1 Qd8 Qc1 Rg6+ Ke4 Rg4+ Ke5 Bg6 Bg5 Na7 e4 Nb5 Ne2 g1N Be3 Bh5 Ng3 Bg6 Be6 Be8 Bf7 Nf3+ Kf5 Rc6 e5 Rc7 e6 Rc8 Rg1 h1B Rfh8 Nh2 Ke5 Nc3 Rf4 Bhc6 Rg2 Nb5 Rgf2 Bf3 Qf6 Nd6 Rh3 Nb5 R8h7 Bd1 Qb1 Be2 Qh4 Bf3 Rd7 Kc3 Qe4 Bd1 Qh1 Bf3 Rd3+
B1N5/4R2q/P2Kbq2/N2pN1RR/1nr1kn2/3Nr1R1/1B1Q1qQ1/1b1b1N2 b - - 0 1 legal: proof: g4 a5 d4 c5 dxc5 f5 e4 g5 exf5 e6 h4 Ne7 hxg5 Ra7 b4 axb4 f4 Ra4 g6 Ra6 g7 Ra7 g5 Ra8 g6 Ng8 Ke2 Be7 Ke1 Bg5 fxg5 Ra3 Ne2 Ra7 Ng1 Ra8 Ke2 Ke7 Ke3 h5 Kf4 b5 Ke5 h4 a4 h3 c4 b3 a5 h2 c6 b2 a6 b4 c7 b3 c5 Rh3 f6+ Ke8 c6 Re3+ Kd6 e5 Nd2 b1Q Ngf3 e4 Bg2 b2 Ne1 Ra3 Nf1 e3 Qd2 e2 Nd3 Bb7 c8N e1Q c7 Ne7 Nb6 Bf3 c8N Qf2 Nc4 Bd1 Na5 Nbc6 Be4 Qdb6 f7+ Kd8 f8N Nb4+ Bc6 Ned5 g8R Nf4 g7 Ra7 g6 Rc7 Ra2 Qbd4+ Bd5 Rc4 Ra1 Qc3 Ba8 Qbc2 Ra2 b1B Bb2 Rb3 Ra3 Ke8 Rh8 Kd8 Rg1 h1B g8R Bd5 g7 Be6 Rg3 Qf6 Rh5 Ke8 Ng6+ Kf7 Re8 Rbc3 Rgg5 Rb3 Ne1 Re3 Rc3 Qcf5 Nd3 Qe4 Nf8 Qh7 Ng6 Qf5 g8Q+ Kf6 Nge5 Qfg6 Rg3 Qg5 Re7 Kf5 Nec6 Ke4 Nce5+ Nbd5 Rb3 Qh4 Rb5 Qf6 Nec6 Nb4 Qg4 Rf3 Rbg5 Re3 Nce5+ Nc6 Kc7 d5 Kd6 Nb4 Qh3 Qff5 Qh2 Qf6 Qg2+
4N1rn/p3n1nP/Q1B2R1K/1Qr1R3/Nq3r2/1RQ1Q1B1/2b2RR1/k3b2n b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 h5 a4 f5 exf5 d5 axb5 d4 g4 hxg4 c3 Na6 cxd4 Nb8 d5 Rh5 Ba3 Rh6 Bc1 Rh8 Ke2 Kd7 Ke3 g5 h4 e5 d4 g3 f4 g2 c6+ Kd6 h5 g4 f6 e4 b6 g3 b7 Bd7 h6 Rh7 f7 Be7 f8R Qb6 f5 Qc7 Kf4 e3 f6 e2 Kg5 e1R Ra2 Re3 Nh3 g1N Qd2 g2 Nf2 Ra3 Qe3 Rh8 h7 Nh6 Rh3 Qa5 c7 Qb6 c8Q Nc6 b8Q+ Qc7 Qb5 Bd8 Ng4 Ne2 Qca6 g1N Bg2 Bf5 Nc3 Qa5 Na4 Rc8 Bb2 Bb6 f7 Ng3 Nf6 Nh1 Rh5 Qb4 Ne8+ Kd7 d6 Ba5 d5 Bc2 Bd4 Ne2 Be5 Nd4 Bg3 Ndf5 Rg8 Rb3 f8R Ng7 Rf6 Rd3 Kg6 Nf7 Re5 Rd4+ Be4 Rc7 Rb2 Rc4 Rb3 Rc8 Rf8 Rg8 Rf2 Nh8+ Kh6 Rc7 R8f6 Rc8 Bf3 Rf4 Rg2 Kd8 d7 Ne7 Nd6 Kc7 d8R Qc3 Rdf8 Qb4 Qf1 Kd7 Ne8 Rc5 d6 Qb8 Qfc4 Be1 Qcc3 Qb6 Re4 Kc6 d7+ Kd5 d8Q+ Qd6 Qdc8 Qb8 Qb2 Qb5 Re5+ Kc4 Qab7 Qb6 Bc6 Qb4 Qa6+ Rb5 Qcb7 Rg4 Rff2 Rf4 Qa5 Rd5 Rf6 Rc5 Rd3 Bc3 Qa1 Kb3 Qae1 Ka2 Qaa6 Bd2 Rb3 Bc3 Q1d2 Ka1 Qdd3 Bd2 Qbb5 Be1 Qc3+
Q3r1Q1/n2r1Nq1/Rb1r1b2/N3N2p/Nk1n4/4N1QP/1B2RrQK/B4q2 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 c5 dxe5 c4 f3 c3 bxc3 Qc7 c4 Qb6 c5 Qd8 e4 g6 e6 Ba6 e5 Bb7 Bd3 Bd5 Bf5 Be4 fxe4 gxf5 Kf2 Ke7 Kg3 h5 c4 a5 c6 d5 c7 a4 c8N+ Ke8 b6 d4 b7 a3 h3 f4+ Kh2 f5 g4 f3 c5 a2 c6 f2 e7 f1Q c7 Kd7 e8N Kc6 g5 Kb5 e6 f4 e7 d3 g6 d2 e5 f3 g7 f2 e6 Nc6 b8B Qd4 Qb3+ Ka5 Bb2 d1R Nb6 Rc1 c8N Qd8 Nc4+ Ka6 B8e5 Rh7 Nbd2 Qd7 Ngf3 Rh8 Na5 Rd1 Ndc4 Rd5 Ne3 Nd4 Ned6 Rh7 e8Q Ne7 g8Q Nec6 e7 Na7 Nf7 Rd6 Nb6 Rg7 Re1 a1B Na4 Qg4 Qd7 Re8 Re2 Rh7 Qc7 Qg7 Qbc2 Kb5 Qg6 Kb4 Qg2 Qb1 Rc1 f1R Rc6 Rf2 Ra6 Qf1 Bf6 Rd7 Qg3 Rh6 Be5 Rhd6 Bf6 Rc8 e8Q Be7 Rc2 Bd8 Re2 Bb6 Qe4 Re8 Qa8 Nb3 Bc1 Be5 Bb2 Nd4 Ba1 Bf4 Be5 Bg5 Bb2 Bf6 Ba1 Nf5 Beb2 Nd4 N3e5
6bk/q1b2RnR/n1BQQ1r1/1q1Q3p/2BnRR1Q/qN5Q/1b4PK/4N3 b - - 0 1 illegal: No possible last move, all moves rejected
N7/2n1R3/QbpB1Rqk/2r1Bb1R/KN2qP2/R4QbR/2n5/qQQ4n b - - 0 1 illegal: No possible last move, all moves rejected
BNQB2n1/1Rb1b2B/5NN1/3K4/Br1pnb1n/k4bb1/4PNB1/Q2R1q2 b - - 0 1 legal: proof: d4 b5 g4 e5 f4 a5 fxe5 g5 h4 c5 dxc5 f5 a4 Ra6 axb5 Rg6 Bh3 fxg4 Bf1 g3 Ra2 g4 Ra1 Rg5 hxg5 Bd6 Rh6 Be7 Rh1 Bf8 Kd2 Ke7 Kc3 h5 Kd4 d5 c4 a4 b4 h4 b6 g2 b7 g3 c6 a3 g6 a2 e6 Kd6 c5+ Kc7 b5 h3 g7 h2 e7 Rh3 e8B Nf6 g8B Be7 Nd2 Bg4 Ne4 Na6 b8N Rh4 Nh3 g1B+ Nef2 g2 Nd7 Bf3+ Nf4 Rg4 Rb1 a1B+ Rb2 Qb8 Bh7 Ng8 Ke5 Qb6 Ng6 Rb4 Qb3 d4 Rb1 Bc3 Bg5 Bd2 Nf6 Bf4+ Ke6 Qa5 Qd3 Qa1 b6+ Kb8 c7+ Kb7 Ba4 Bg3 Bb3 Kc6 c8B Bf4 Qf5 Kb5 b7 Bg3 Bd5 Ka4 b8N Ka3 c6 Bc7 Be4 Nc5+ Kd5 Bf4 c7 Bg3 Nd1 Be3 Bd7 g1B c8Q Bef4 Ba4 Bge3 Rb2 Bc7 Bg2 Bef4 Nf2 Qb1 Rd1 h1N Rdd2 Qf1 Rd1 Bh5 Bef3 Bg4 Qb1 Ne4 Bh3 Bh5 Bfg2 Bf3 Be6 Rc4 Rb7 Rb4 Bg4 Bh4 Bgd7 Nhg3 Bdc6 Nf5 Rb6 Be3 Ba8 Bef4 Rb7 Bhg3 Nh5 Bc5 Bd8 Be7 Nf6 Nh4 Qa1#
6Qq/B2pNB1r/2r2r1n/Q1RR1N1B/b1P5/k1n5/Br1rRK1R/1Bq5 b - - 0 1 legal: proof: g4 b5 d4 c5 f4 cxd4 a4 f5 axb5 g5 fxg5 f4 h4 e6 e4 f3 g6 Qb6 g7 Be7 g5 Qd8 g6 Bg5 hxg5 f2+ Kd2 Qc7 Bc4 f1N+ Ke1 Ne3 Bf1 Nf5 exf5 Qd8 b4 Ke7 f6+ Kd6 f7 a5 f8R h5 b6 a4 b5 Kc5 b7 Kb4 b6 d3 Be2 a3 Rh2 d2+ Kf2 a2 Nf3 h4 Rf5 h3 Qe1 e5 Nh4 e4 Bh5 Qc7 Nc3 d1R Rc5 Nh6 g8B Nc6 b8R Nd4 g7 Nb5 g6 Ra6 b7 Rf6+ Nf5 Rh7 Be3 Ka3 Nd5 Nc3 Bf7 Rb1 g8B Rb2 Rb1 a1R g7 Raa2 Rd1 Qe5 Bd4 Rc6 Nde7 e3+ Kg1 e2 Kf2 Qf6 Be3 Qe5 Rdd5 Qc7 Qa1 e1R Bfg6 Rc1 B8f7 Rf6 g8B Qd8 Rd2 Qe8 Re2 Qf8 Rd5 Qg7 Ba7 Qh8 Rg2 h2 Rc5 h1Q Rh2 Re1 Ra8 Rc1 b8Q Ba6 Qf8 Ka4 Rac8 Bd3 Rd5 Bb5 Rcc5 Ka3 Qd8 Ba4 Qa5 Nb5 c3 Rcc2 Qg1 Rd2 Qg5 Qc1 c4 Rb1 Qg2 Rb6 Nd4 Nc3 Be4 Rg7 Bgh7 Rac2 Bh7g6 Rf6+ Bgf5 Rh7 Qg8 Ra2 Bc2 Rbb6 Bb3 Rab2 Ba2 Rg6 Bfb1 Rgf6+ Ndf5 Rbd6 Qg7 Rc6 Qg8
N1QK2R1/3Q4/n2nr3/3R2R1/R1N2Pnb/3p2bQ/B3Q1Bq/Qb2bqk1 b - - 0 1 legal: proof: g4 b5 e4 c5 d4 f5 dxc5 a5 a4 h6 axb5 Qc7 g5 Ra6 exf5 Rf6 gxf6 Qb6 Bg5 hxg5 f4 Qd8 Kd2 Kf7 Kc3 e5 Kc4 g6 Kd5 e4 c4 d6 h4 g4 b4 g5 c6 a4 h5 e3 h6 a3 h7 a2 c5 e2 c7 e1N b6 g3 b5 g2 c6 g4 b7 g3 b6 Bg7 Na3 Nf3 Ne2 g1Q Nc4 g2 Rh5 Bh6 Nc3 Ne1 Na4 Qh2 Qe2 g1B Bg2 Bf2 Rg5 Na6 b8Q Nf3 b7 Ne5 Qa7 Ng4 b8Q Bg3 Qb1 Bf8 Qbd3 Be7 Nab6 N8h6 Na8 Re8 h8Q Bb7 Rd1 a1B c8Q Bc3 Qd7 Bc8 c7 Bce1 Kc6 d5 Ra1 d4 Ra4 Bb7+ Kb6 Qb8 c8B Be4+ Bb7 Qe5 Qb8 Qd5 Qbc8 Qe5 Qa3 Bb1 Qa1 d3 Bbe4 Qc3 Kb7 Qc1 Qh7+ Kf8 Bd5 Nf7 Qh3 Nd6+ Kc6 Qd1 f7 Bf6 Nd2 Bd8 Ba2 Re6 Nc4 Qc1 Qdb7 Qd1 Qb5 Ke7 f8R Qc1 Rfg8 Kf7 Kd7 Be7 Rh5 Beh4 f6 Qd1 Rd8 Kg6 f7 Qc1 f8R Qd1 Qeb2 Qe2 Re5 Qf1 Qe2 Kh6 Qbb7 Kg6 Rg8+ Kh6 Re3 Kh5 Re5+ Nf5 Bd5 Rh6 Qb3 Re6 Qhg2 Be7 Qbb7 Kh4 Ke8 Bf6+ Qe7 Bg5 Rd7 Bf6 Kd8 Bg5 Bf3 Bf6 Rdd5 Nd6 Qgf2 Kh3 Qfe3 Bfh4 Reg5 Bgf2 Qed7 Kg3 Q2d2 Kh3 Bd1+ Kg2 Bf3+ Kg1 Qde2 Ne4 Bg2 Nd6 Qh3 Bfg3 Qe8 Nf2 Qb5 Ng4 Qbd7
6Q1/qbN1R3/RQ1bbk1n/K7/RRqpN2P/7r/1B1qn3/1qQQ2BQ b - - 0 1 legal: proof: f4 b5 d4 c5 dxc5 f5 a4 h5 axb5 e5 fxe5 a5 g4 f4 Bh3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Qc7 Bg4 hxg4 Na3 Qb6 Nb1 Qd8 Kd2 Kf7 Kc3 d5 h4 g5 e4 f3 b4 f2 f6 f1B e6+ Kg6 f7 a4 e7 g3 e8Q g2 e5 g4 e6 g3 e7 a3 c6 a2 b6 Qd6 b5 Bc4 b7 Bd7 b6 Qf4 Kb4 Qf6 c7 Qf2 c8Q Qf6 Ka5 Ba6 c4 Qc6 c5 Nh6 Nf3 g1Q Nfd2 g2 Nc3 Ng4 Nde4 Bd3 Bb2 Rh6 Nb5 Rh7 Nc7 Qe3 Rh3 Qe6 c6 g1Q Qcd8 Qgf2 Qh1 Rg7 Rf3 Nh6 Rf4 Bc8 Qed7 Qf1 e8R Ba6 Re7 Qb1 Qd6 Qec1 Qc5 Qe3 Qcc1 Qg4 Qcd1 Be6 Qd6 Qee2 Qc5 Qg5 Qcc1 Qc4 Rg4 Nd7 b8R Nc5 b7 Na4 Ra8 Nc3 b8Q Ne2 Qb6 Bb7 Ra6 Kf5 Qbg1 Rg6 Qb6 Rf6 Rf4+ Kg6 Rg4 Rf3 Rf4 Rh3 Rg4 Bg7 f8B Be5 Bg7 Bh2 Bgd4 Bd6 Bg1 Kf5 Na8 Qe3 c7 Qed3 c8Q Qd2+ Nc3 Kf6 Nc7 Nd4 Qg8 Ne2 Rg5 d4 Rb5 Qbc2 Rb4 Q2b3 Rb1 a1Q+ Ra4 Qaa2 Ba1 Qbc2 Rb4 Qcb1 Bb2 Qc5+ Qb5 Qa7 Qb6 Qc4 Ne4+
KN2k2q/2B1Q1bR/3B2rB/2N2n2/2pbNq1b/1b1rP1Q1/2rBR1B1/4N3 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 Kf2 h5 b4 c5 d4 a5 g6 a4 g7 f3 Ke3 c4 Ke4 a3 d6 h4 Kd5 h3 Kc6 h2 d5 f2 b6 g3 b5 g2 f6 a2 d7+ Kf7 e3 Qe8 d6 Rh6 b7 Qe5 d8B Qe7 b8N Be6 b6 Rh4 d7 Qa3 Kb7 Bg4 Nc3 Rh8 Bd2 Qb2 Nf3 g1B Ne4 Ra3 Ne1 Rd3 Ka8 Nh6 b7 Rg8 Bc7 Nf5 d8N+ Ke8 Bg2 f1Q Ne6 Bf2 N6c5 Bh4 Bd6 Qf4 f7+ Kd8 Rc1 a1B Rc2 Be2 Qb1 Bd1 Qa2 Qf6 Qa7 Bd4 Rb2 Bb3 Rc2 Rh8 g8Q Rh6 Qg3 Bg7 f8B Ke8 Qa3 Rg6 Rb2 Bh8 Bh6 Qd8 Bc1 B8f6 Re2 Bg7 Bd2 Qf6 Nbd7 Qf8 b8B Qg8 Bbc7 Qh8 Rf1 h1R Nb8 Rh3 Rh1 Rh2 Qa7 Kf7 Bda5 Rg5 Rf2 Rc3 Bcb6+ Ke8 Bf3 Bgf6 Bhf8 Rg6 Rd2 Rf2 Bg2 Bhg5 Rh7 Bh4 Bh6 Bfe5 Qg7 Rd3 Bbc7 Re2 Qf6 Rf2 Qfg5 Bg7 Rc2 Rfd2 Bb4 Rd1 Re2 Rc1 Bd2 Rc2 Qe7+
3B1Knr/1b2R2Q/1n4NQ/1N3pN1/rn6/n1k1rq1R/2NN1RP1/1q3RB1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 f4 g4 e3 g3 Bd3 Na6 Bf5 exf5 hxg3 Bc5 g4 Bd6 g5 Be5 fxe5 Nb8 Kf2 Kd7 Kg3 a5 Kf4 c5 d4 h5 b4 c4 g6 a4 b6 f6 b5 a3 e6+ Kd6 b7 h4 b6 a2 g7 c3 e4 c2 e5+ Ke7 d6+ Ke8 d5 h3 d7+ Ke7 Qd3 h2 Nd2 Ra6 Nh3 Ra3 Ng5 Nc6 b8N Ra6 b7 Qe8 d8R Qf7 Rf8 Ra3 Na6 Rh7 b8Q Rh6 Qb6 Qe8 Nb4 Bb7 Qh3 Rh8 Qh7 Rd3 Ba3 c1Q Nc2+ Nb4 Qc6 Qb1 d6+ Kd8 d7 Ke7 Bb2 Rb3 Bd4 Qh5 Bg1 Re3 Qb6 Qbd1 Rb1 a1N Rb3 Qb1 Qa6 Re2 Rh3 Re3 Qb6 Nb3 Qc6 Na5 Qa6 Nc4 Rf7+ Kd8 e7+ Kc7 e8R Nb6 d8B+ Kc6 e6 Kc5 e7 Qe2 Ref8 Kd5 e8N Qd3 Na3 Kd4 Re7 Kc3 Nc7 Qe2 Nc2 Qh5 Bf2 Qf7 Re1 h1R Re2 Rd1 Bg1 Qfb3 Rf2 Qa3 Nf1 Rd5 Nd2 Ra5 Qe2 Ra4 Qeh5 Qab3 Q5h6 Bf3 Kg3 f4+ Kh4 Bb7 Kh5 f3 Kg6 Qa3 Rf1 f2 Kf7 Qab3+ Ke8 Qd5 Rf7 Qc6+ Kf8 Qf3 Rd1 f1N Re1 Nh2 Rf1 Ng4 Rf2 Ne5 Nb5+ Kb2 Rf1 Nec4 Nba3 Qf2 Re5 Ne7+ g8N Kc3 Rf5 Qe2 R5f2 f5 Rg7 Qf3 Nb5+ Kb2 Rf7 Na3 Kg7 Ned5 Ne7 Nf6 Ng6 Ng8 Rc7 Nac4 Kf8 Na3 Nde4 Kb3 Re7 Kc4 Nd2+ Kd3 Nc7 Kc3 Nb5+
3bKb1Q/2Q2Nkn/3Bp3/2N3b1/Rr1q1P2/3Qrbq1/Bq6/BQ1QBR2 b - - 0 1 illegal: No possible last move
nk5n/Rbn5/1rpN1NR1/NN2Q1N1/Pq2Q3/rBBqr3/5KB1/3B3r b - - 0 1 legal: proof: g4 a5 c4 f5 e4 g5 exf5 d5 cxd5 e6 h4 Bc5 hxg5 Bb6 f4 Ne7 b4 axb4 f6 Ra5 g6 Ng8 g5 Ra8 f5 Bc5 Bd3 Bf8 Bf1 Bg7 fxg7 Qe7 Qb3 Qf6 Qd1 Qd8 d4 Kd7 d6 b5 f6 h5 f7 c6 f8Q b3 d5 e5 Bb2 h4 Qf6 e4 Qg4+ Ke8 Qe5+ Ne7 g8N b4 g7 e3 g6 h3 Na3 e2 Qge4 Kd7 Bg2 h2 Bc3 b2 Nh3 b1N Rg1 h1R Ng5 b3 Nb5 b2 Kf2 Bb7 Nf6+ Kc8 g8B e1R g7 Na6 a3 Kb8 d7+ Nc7 d6 Re3 Bb3 Ra5 g8B Ng6 Bd1 Nd2 Bgb3 b1Q Ra2 Qe7 d8N Qd3 d7 Qb4 Ndf7 Nc4 d8N Nb6 Nfd6 Nba8 Ra1 R8h2 Ra2 Nh8 Ra1 Bc8 N8b7 Rhh3 Ra2 Ra6 Na5 Rb6 a4 Re1 Re2 Bb7 Re3 R3h2 Rh3 Re3 Rh6 Rh5 Rg6 R1h3 Rh1 Rhg3 Rh4 Rh7 Rf4 Rh1 Rh4 Rgh3 Rh7 R3h2 Nh5 Ba6 Nf6 Nd5 Ra7 Bc8 Nde8+ Ndc7 Ned6 Rhe1 Bdc2 Ra1 Nab7 Rhh1 Na5 Ra3 Bd1 Ba6 Qe6 Bb7 Q6e5
B1bb2Nq/Qrb1P1p1/2nQRbR1/2N2R1Q/2Qn4/6k1/R6R/1q1BnK2 b - - 0 1 illegal: No possible last move
K3R3/2q1p3/2NnBbb1/QrQ3k1/3PR3/QBr2qNr/7Q/1Rb1rRR1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 Bb7 h4 Bh6 b3 Bc8 h5 Nc6 Ba3 Ne5 Bd6 Ng6 hxg6 Bg7 Bf4 gxf4 g5 Bf8 Kf2 c5 Kf3 h5 Ke4 a5 d4 c4 b6 a4 b7 a3 b8Q a2 g7 Kf7 d6 f3 Kd5 c3 Kc6 h4 b4 h3 g6+ Ke8 b5 f2 b6 c2 b7 c1R+ Bc4 f1R Qd3 h2 Nd2 Rf3 Ne4 Re3 Qa3 Ra7 Nf3 Ra4 Rf1 h1Q Qa7 Rb4 b8Q Rh4 Rb1 a1B Qc5 Ba6 Be6 Re2 Ne5 Rg2 Ng3 Nh6 g8R Rbc4 g7 Re1 Qbb2 Bb5+ Kb7 Nf7 Nc6 Qc7+ Ka8 Rc3 Bb3 Rg1 Qh2 Rh3 Rf4 Be2 Re4 Bd3 Be6 Bb2 Bb3 Ng5 f7+ Kd7 f6 Qf3 Rh8 Bc1 g8B Bg7 f8R Nf7 Re8 Rg2 Rhh4 Rb2 Rhg4 Nh6 f7 Nf5 f8R Bf6 Ba2 Rb5 Bgb3 Ne3 Rgg8 Nc4 Rf7 Be5 Rgg7 Ke6 d7 Bc2 d8Q Bd3 Ref4 Bg6 R7f5 Bf6 Re4+ Qe5 Rgg8 Kf7 Qda5 Qc7 Rgf8+ Kg7 Rg8+ Kh6 Rff4 Nd6 Be6 Qh5 Rf1 Qd5 Bb3 Kg5 Rh8 Qf5 Rhh4 Qd5 Rhf4 Qf5 Rg1 Qd5 Rff1 Qf5 Bbd5 Qf3 Bb3+
Rq1r4/q2pN3/rr1P2Q1/R1QNBrNN/4N2k/1qB3Q1/b4Q1K/1b1n4 b - - 0 1 illegal: No possible last move, all moves rejected
K2bbb1R/1QQn2RN/1NQ5/n1pn4/4k1P1/bB4R1/1RQBq1qb/4R3 b - - 0 1 legal: proof: g4 h5 a4 d5 e4 dxe4 f4 f5 c4 b5 axb5 a5 h3 g5 gxf5 g4 f6 g3 f5 Rh6 Na3 Rg6 Nb1 Rg4 hxg4 Ra6 Nh3 Rd6 Ng1 Rd5 cxd5 Bh6 Ra3 Bg7 Ra1 Bf8 Ke2 Kf7 Ke3 e5 b4 c5 d4 g2 d6 h4 b6 h3 d5 a4 b7 a3 d7 h2 b5 a2 d6 Qe7 d8R Qe6 d7 Qd6 b6 Qc6 Bc4+ Qd5 Nh3 g1N Bd2 Ne2 Rg1 h1Q Nc3 Nd4 Bb3 Be7 Qc2 Qg2 Rae1 a1B Na4 Bb2 Re8 Qh2 d8Q Bd7 Rg3 Ba3 Qc7 Bf8 Rd8 Ne7 Ng5+ Kg8 f7+ Kg7 Re8 Ndc6 Nh7 Na5 f6+ Kg6 Rd8 Be8 Rd7 Qe6 Qc6 Qg2 Rc7 Nd7 b8Q Qc4 b7 Qa6 Nb6 Qc4 Rf3 Qe6 Rf2 Nd5+ Ke2 Nc4 Rh1 Bc1 Ba5 Ba3 Qd3 Bg7 f8R Qe7 f7+ N7f6 Bc3 Na5 Rh8 Qe6 Qd1 e3 Kd3 e2 f8R e1B Rb2 Bg3 Qc2 Bh2 Bd2 Qe7 Rf7 Bf8 Qa8 Qe6 b8Q Qe7 Rc1 Qe6 Rce7 Nd7 Rf4 Kh6 Qab7 Kg6 Q8c7 Kh6 Qb1 Kg6 Rf3 e4+ Kc2 e3 Kd3 e2 Qc2 e1B Rcb1 Bf2 Re1 Be3 Rg3 Bg5 Rg7+ Kh6 Qa4 Nc6 Kc4 Na5+ Kb5 Qe3 Ka6 Bd8 Rg5 Qef3 Ka7 Qfe2 Rh5+ Kg7 Rg5+ Kf7 Rg7+ Ke6 Qcc8 Ke5 Qac6 Kd4 Ka8 Ke5 Q8c7+ Kd4 Qc1 Ke4 Qc2+
1b3RR1/3Rq3/1pbBQ1B1/1n1QnN1B/bnb1R1b1/PB4K1/k1B1q3/3N4 b - - 0 1 illegal: No possible last move
r1Nk1N2/5rbQ/p2R4/rB4NN/QK1B2bn/PQNQr3/4b3/rr1R4 b - - 0 1 legal: proof: g4 f5 c4 d5 b4 c5 bxc5 e5 cxd5 e4 f3 exf3 Nh3 g5 Ng1 f4 h3 Nc6 h4 Nce7 Nc3 Nf5 gxf5 g4 Nb1 Qg5 hxg5 Bg7 Na3 Bh6 Nb1 Bf8 d4 b5 Kd2 h5 Kc3 f2 e4 g3 d6 a6 d7+ Kd8 g6 g2 g7 h4 d5 h3 a3 h2 e5 f3 e6 Rh6 f6 Be7 c6 Kc7 d8N Rh8 f7 Nf6 g8Q Nh5 f8N Nf4 Qb3 Ng6 Be3 Bf6+ Kb4 Bb2 e7 Rh3 e8Q Nh4 Nc3 Bg4 Nge2 g1R Bd4 Rgg3 Rg1 h1R Nf4 R3h2 Bc4 f1R Nh5 f2 Rd1 Re3 d6+ Kc8 c7 Rhh3 Kc5 b4 Qh7 Rhf3 Qea4 Rf7 Rd2 Ra1 Nde6 f1B Bb5 Bfe2 Rgd1 Rhf1 Ng5 R1f5+ Qd5 b3 Kb4 Bc1 Qc4 b2 Qcb3 b1R Rd3 Bb2 d7+ Kb7 c8N Kc7 Bc4 Ra5 d8Q+ Kb7 Qd5+ Kc7 Qf3 Kd8 Bb5 Bc1 Qff5 Bd2 Qe4 Be1 R3d2 Bg3 Qd3 Be5 Rf1 Bf6 Rdd1 Bh8 Rf6 Bg7 Rd6+
nB2r3/r1B4R/2NN3K/Q1RR1r1Q/1R1r1B2/Bp2kb1P/2Bnn2n/2n5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 Bd7 Ne2 Be6 Ng1 Bc8 Nc3 h5 Bb2 g4 Nge2 Bh6 Ba3 Bg5 hxg5 h4 Nb1 h3 Ng1 h2 Bc1 Qd6 Ba3 Qg3 Bc1 Qh3 gxh3 Ra4 Qb3 Ra5 Qd1 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kd6 a4 c5 a5 b5 a6 g3 a7 b3 f6 c4 g6 e5+ Kg5 b4 f4 e4 f7 g2 f8B+ Ne7 f5 c3 g7 c2 g8R b2 f6 e3 f7 b3 Ne2 g1N Rg7 Be6 Rh7 Na6 Nbc3 b1R Kh6 Bg4 Ne4+ Kd7 d6 Ke6 d7 Kd5 d8B Nc7 Ra4 Bf3 Nd6 Ra1 Rb4 Ng6 Bg2 Rb8 a8Q+ Rb7 Qa4 Ne5 Qa5+ Rb5 Bfe7 Ra4 f8B Na8 Bc7 Nc4 Ba3 c1N Bg5 Rc5 Bf4 Nd2 Bg7 Re8 Bge5 Be4 Bb8 Ngf3 Rg1 h1N Bf1 Rb5 Rg5 Nh2 Rf5 Bf3 Bc7 Kc6 d5+ Kc5 Nd4 e2 Nc6 e1R Bd3 Ng3 Bc2 Re4 Rg5 Rd4 Qe2 Be4 Qh5 Bf3 Nf7 Bg2 d6 Bf3 d7 Nge2 Nd6 Kd5 d8R Rc5 Qb5 Ra7 Qa5 Nd3 Nb7+ Ke4 Rd5 Rb5 Bb8 Rc5 Bec7 Rb5 Bg3 Ke3 Nd6 Ndc1 Rc5 Rf4 Rgd5 Rf5 Ra4 Rb4 Be5 Re4 Rb4 Rd4 Bf4+
3K2B1/1R1R2BN/n6R/4n3/1R1BB1r1/1pP1qRq1/Nq1n1Qnr/2qkQ3 b - - 0 1 illegal: No possible last move, all moves rejected
4B3/R3R1Q1/1Rb3nP/r1NQ3k/b3N1Rp/1pBBqn2/1n4B1/2b2KRr b - - 0 1 legal: proof: c4 a5 g4 h5 b4 axb4 h4 d5 cxd5 f5 e4 g5 hxg5 h4 exf5 Qd6 Qe2 Qg6 Qd1 Qh5 gxh5 Rh6 Qe2 Rh7 Qd1 Rh8 f4 Kf7 d4 b5 a4 e5 a5 c5 f6 c4 g6+ Ke8 g7 Kf7 a6 e4 f5 e3 d6 b3 a7 c3 h6 b2 d5 b4 d7 c2 d8R e2 d6 b3 d7 Nc6 Nf3 Bb7 Nfd2 Nb8 Rg1 Bd6 Re8 Nc6 d8R Bf4 Rd6 Bc8 Nc3 b1B Bb2 c1Q Nce4 Qc2 Bc3 Ne5 Nc5 Nc4 Nde4 Bg5 Rb6 Bc1 Qd5+ Be6 Kf2 e1N+ Be2 Rh7 Kf1 Qd2 Bd3 Nb2 Ra2 Rc8 a8B Nf3 Ra7+ Ne7 Bb7 Ng6 Re7+ Kg8 Bc6 Qe3 Be8 Rh8 f7+ Kh7 f8R Bd7 f6 Ba4 f7 Rg8 Bc6 Ra8 Rc8 Re8 f8Q Rd8 Be8 Bc2 Rad7 Ra5 Ra7 Bd1 Qd7 Qf4 Ng3 Qe5 g8B+ Kh8 Na6 Nf4 Kf2 Nh2 Rh1 Nh5 Be2 Nf4 Rc4 Bc2 Ke1 Be4 Nc5 Bec6 Bgf7+ Kh7 Bd5+ Qg7 Rcb4 Qf7 Bec4 Kg6 Bg2 Kg5 Kf2 Qe6 Qg7+ Ng6 Qd3 Rd5 Re1 Re5 Qd5 Nf3 Rf1 Kg4 Bd3+ Re4 Rd4 Qe5 Rc4 Kg5 Rd1 Re1 Rd4 Rh1 Rg1 Be3+ Kf1 Bc1 Nf5 Kh5 Rg4 Qe3 Nd6+ Qg5 Nde4 Qe5 Ng5 Qe3 Nge4+
2nNBr2/7N/K2Q3p/3brRn1/Bpk2r1N/2b3q1/RRRbQP1N/2N5 b - - 0 1 legal: proof: c4 h5 g4 f5 gxh5 d5 cxd5 a5 b4 f4 bxa5 e6 h6 f3 h7 Bd6 exf3 Be5 f4 Kd7 f5 Bd6 h4 Nc6 h5 Qh4 h6 Qd8 Bb2 Nf6 Bc3 Rg8 h8N Nb8 h7 Ng4 Bd4 Na6 Be3 Nb8 Bh6 gxh6 Ke2 Rg5 Ke1 Rh5 Ke2 Rh4 Kd3 Rh3+ Kc2 Re3 Kc1 Re2 Kc2 b5 Kb3 c5 d4 e5 a4 b4 Kc4 e4 Kb5 c4 a6 c3 a5 e3 f6 c2 f7 c1R f8N+ Kc7 a7 Qh4 a6 Rc4 Nc3 Ne5 Nhg6 Bc5 h8R Kd6 Ra5 Nec6 Nf3 Qh2 Ngh4 Rd2 Na2 e2 Nc1 e1B Qe2 Rd3 Nh7 Qe5 Nh2 Bg4 Rc8 Kd7 d6 Ke6 d7 Kd5 d8N Bf3 Ra2 Rdc3 Rb2 Rb3 Rg1 Be7 Rg5 Bd2 Rf5 Nd7 Rc7 Rc8 a8R Nf6 a7 Ne4 Ka6 Bf6 Bh3 Ne7 Rc5+ Kd6 d5 Re3 Bf1 Rd4 Rcc2 Qg3 Bh3 Bg7 Bg4 Be5 Bh5 Ng5 Be8 Rf4 Ba4 Bec3 Be8 Kc5 d6+ Bd5 d7 Rc4 Nb7+ Kd4 d8Q Rb8 Qd6 Re5 Ba4 Rf8 Nd8 Qg2 Rb8 Qf3 a8B Nc8 B8c6 Qe3 Be8 Qg3 Qd7 Kc5 Ra8 Rf4 Qd6+ Kd4 Bab5 Rf3 Ka5 Rf4 Bbd7 Ree4 Kb5 Re5 Raa2 Qf3 Ka6 Qg3 Qh5 Kc4 Ba4 Bg8 Qd1 Bd5 Qe2+
Q2QKNQ1/1Q1R3N/r1N1p3/q1b1n3/2N1P3/NR2n2p/1r1b1bB1/2Br1k2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 a4 g5 axb5 Bd7 fxg5 f4 g4 fxg3 h3 Bg4 hxg4 Qd6 Ra2 Qd7 Ra1 Qd8 d4 Kd7 Kd2 Kd6 Kd3 c5 Kc4 a5 e4 h5 b4 g2 b6 e6 Kb5 c4 b7 a4 g6 c3 g7 c2 g5 a3 g6 a2 Na3 h4 Rh3 Ra7 Nf3 g1R Bg2 Na6 b8Q+ Qc7 Ne5 Rh1 Nec4+ Ke7 d6+ Kf6 d5 Qc8 d7 Qd8 Kc6 Rg1 d6 Nc7 b5 Nh6 g8Q Ng4 b6 Ra6 g7 Nd5 Qa8 Nde3 Qd5 Rd1 Qb7 Qa8 d8N Ne5+ Kc7 Kg5 d7 Kf4 Nc6 Rh6 d8Q Bc5 Rb1 a1B Rb3 Bc3 Rf3+ Kg4 Rf7 Kg3 Rd7 Qa7 Qa8 Kf2 Kd8 B3d4 Ke8 h3 Qd8 Rg6 Qba8 Qc7 b7 Qa5 b8N Rg4 Qf7+ Ke2 g8N Rf4 Nf6 Rf2 Nh7 Ke1 Bb2 c1B Qg8 Rc2 Qb7 Bd2 Bc1 Rb2 Qa8 Be7 Qb5 Bdc5 Qbb7 Bh4 Ne7 Bf2 Nbc6 Ke2 Ng6 Ke1 Ngf8 Ke2 Bh1 Kf1 Bg2+
1n1B4/8/1KR1RbRp/4Bk2/1Q1B1NQp/1B1q1nPb/R2r1B2/2r2qNr b - - 0 1 illegal: No possible last move
nk5N/2Q2nb1/PBbNR1R1/6Np/5qB1/2R2Qr1/1pb1R1r1/1R2KNq1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 g4 Kd7 f4 Kc7 a4 h5 c6 e5 d6+ Kb6 g6 Ka7 g7 b5 c7 b3 a5 b2 a6 e4 f6 e3 g5 e2 f5 b4 f7 b3 f6 Bb7 g6 Nc6 c8N+ Kb8 d7 Be7 f8R Nh6 g8R Qa5+ Nd2 b1B d8Q b2 g7 Ra7 f7 Qb6 Rh3 Ba8 Rc3 Bf6 Re8 Ba2 f8N Rf7 Rb1 Na7 Nd6+ Nc8 Ngf3 Qg1 Ng6 Bb3 Re6 Bc2 Ng5 Bc6 Rge8 Rg8 Nh8 Qh2 Qe7 Qf4 Bh3 Rff8 Bf5 Nf7 Bg4 Bd4 Qd7 Be5 R8e7 Nb6 Nf1 Na8 Be3 Rc8 Bg1 Rc7 Qd3 Rb7 Qf5 Rb3 Bb6 Bd4 Rc4 Rg3 Rc3 Rd8 g8R Bg7 Rge8 Rg2 Rg6 Rg3 Ree6 Rg2 R8e7 Rg8 Qd3 Rf8 Re5 Qf6 Kd2 Re8 Ng3 Qf1 Re3 Qg1 Nf1 Rg3 R7e4 Re5 Qd5 Rf5 Re5 Rf2 Ree6 Rfg2 Qe4 Bd1 Qf3 e1Q+ Kd3 Bda4 Re2 Qc1 Qe7 Qf4 Qd7 Qb4 Kd2 Bc2 Ke1 Qf4 Qc7+
4R2N/r2nQ1Qp/r1RbK1QR/2N1pB2/4b3/1BRn3Q/2Q1q2P/3rk1q1 b - - 0 1 legal: proof: e4 c5 a4 g5 f4 b5 fxg5 d5 exd5 a5 b4 Qd6 bxc5 Qd7 Ba3 Qd8 Bb4 axb4 axb5 Qd7 Na3 Qc7 Nb1 Qd8 Kf2 Kd7 Kf3 e5 Ke4 f6 Kf5 b3 d4 b2 c4 Nc6 g4 Na7 d6 Ba6 c6+ Ke8 d5 Kf7 c5 Bc8+ d7 Qe8 g6+ Kg7 d6 Kh6 g7 Qg6+ Ke6 Kg5 c7 Kf4 g5 Ke3 c6 Kf2 b6 Be7 b7 Qd3 b8Q f5 g6 f4 Ne2 f3 Qc2 Qd1 Nd2 b1R Nb3 Ba6 d8Q Bb5 c8R Bg5 c7 Bh6 d7 Nf6 g8Q Ne4 g7 Rb2 Qb7 Nf6 Nc5 Nc6 Ra6 Qe1 Nf4+ Qe2 Qe7 Ra2 d8R Nb4 Re8 Nd7 Ng6 Ra7 Bh3 Bc6 Bf5 Nd3 Rc1 Be4 Qgf7 Ra3 g8B Bf8 Qg7 Ra2 Qbb1 Ra3 Rc6 R3a6 Bf7 Rg8 Rb8 Rh8 c8Q Rg8 Rbb6 Rh8 Qef6 Bd6 Qe7 Rf8 Nh8 Rg8 Qh6 Rg1 Qc7 Rd1 Qh3 Ke1 Bg8 f2 Qg7 Nb8 Qce7 f1Q Kf7 Nb4 Qa4 Bc2 Rc7 Qh1 Bg4 Be4 Rc3 Bb7 Qf5 Bc6 Qac2 Qg1 Qfg5 Nd3 Bf5 Bg2 Kf6 Bf3 Bb3 Be4 Rcc8 Nd7+ Kf7 Bb8 Rh6 Nb6 Q5g6 Bd6 Ke6 Nd7 Rc6
qNQQ1bBR/1Q1p1K2/2b1Q1B1/1QP5/N1pb4/5B1B/3n2rr/1kbn3R b - - 0 1 illegal: No possible last move
7b/R1N1N2n/KQRq2k1/3nq1r1/p2B4/1pPRq1RB/1BB5/2n1R1Qr b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Na6 a4 Nb8 d4 cxd4 b4 b6 b5 Rh7 a5 Rh8 a6 Bb7 axb7 a5 Ba3 Na6 Bb2 Qb8 Bc1 Qa7 Bc4 Nb8 Bf1 Qa6 bxa6 Rh7 Bh3 Rh6 Bf1 Rh8 Kd2 Kf7 Kd3 e5 Kc4 g5 Kb5 d5 h4 d3 f4 d2 f6 g4 h6 e4 h7 d4 f5 e3 h5 g3 a7 g2 h6 e2 c3 e1N Ne2 g1Q Bb2 d3 Bh3 Qh2 Nd4 Qf4 Nc6 Qe4 Na3 Ng2 Qg1 d1Q Ne7 Nd7 b8Q d2 Ka6 b5 Qbb6 b4 Nb5 b3 Nc7 Re8 a8B Qe5 Be4 Qc1 Bc2 d1Q Ra4 Qdd5 Rc4 Bg7 Rc6 Kf8 f7 a4 Re6 Ngf6 Rc6 Rg8 h8R Ne1 Rh7 Bh8 Rg7 Qc5 h7 Nd5 Rg3 Rg5 Rd3 Kg7 f8R N7f6 Rg8+ Kh6 Rg7 Qcd6 Rg8 Ng4 f6 Qce3 f7 Ngf6 f8R Rb8 Rf7 Rb7 Rd1 Nd3 Rd2 Nc1 Rd3 Rh5 Rg3 Rg5 Qf2 Rb8 Re1 Rbg8 Qf1 Rh5 Qg1 Rgg5 Bd7 Rh1 Bh3 Bg7 h8B Nh7 Rf8 Bf6 Ra8 Kh5 Ra7 Kh6 Bg7+ Kh5 Bh6 Bh8 Bf8 Qh6 Bg7 Qhd6 Nc8 Kg6 Bf6 Q5e4 Bd4 Qe5 Ne7+
3Qnr2/NBQ4R/n2q3Q/QQP3RN/Nrn4q/2bp2r1/B1N3p1/2K2k2 b - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h6 f5 Bb7 g5 Bd5 g6 Bf7 Bg5 hxg5 Bg2 Qc7 gxf7+ Kd8 Bf1 Qc8 Qd3 Kc7 Qd1 Qd8 c6 Kb6 Kd2 Kc5 c4 Kd4 b4 a5 h4 e5 c5 d5 h5 g4 b6 g5 h6 g3 b7 a4 c7 a3 c8B g2 h7 e4 b5 g4 b6 g3 Bc4 a2 Na3 Bd6 f8N Ne7 f7 Ng8 f6 Ra4 Nd7 Be5 f8Q Rb4 f7 Nf6 Qg7 Ne8 Nf6 Na6 Qa4 e3+ Kd1 Rg8 b8Q e2+ Kc2 Ke3 b7 Kf2 Qa5 e1Q Ne2 g1N h8Q d4 f8Q Bc7 Rh7 Nf3 Nh5 Be5 Nc3 Nec7 Na4 Qd6 Qff7 Kg2 Qh6 Nd2 Qd7 Qh1 Qdb5 Qh4 Rg1+ Kf2 Kc1 d3 Q8g7 Ne8 Qgc7 Rf8 Qa8 Ba1 b8N Bc3 Nc6 Ke2 Bb3 Nc4 Na7 Kf2 Rg2+ Ke1 Bb7 Kf1 Re2 g2 Re5 Rf3 Rg5 Rg3 Kd1 Kf2 Qad8 a1R+ Nb1 Ra2 Kc1 Kf1 Na3 Rf2 Nc2 Rf8 Ba2
1Q6/n1R5/1br2BBn/Qpb1P2K/3q1QB1/qk5R/1BNpb3/nN1B3Q b - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 g5 g4 e5 fxe5 f5 b4 a5 gxf5 axb4 h3 g4 h4 Ra6 Kf2 Rg6 Ke1 Rg5 hxg5 Be7 Nf3 Bd6 Ng1 Bf8 Kf2 Kf7 Kg3 h5 Kh4 d5 c4 d4 e4 d3 a4 d2 a5 b3 a6 b2 c6 g3 f6 Ke6 f7 g2 a7 Na6 a8Q Qe7 c5 Bh6 f8B Nc7 Be2 Qf7 g6 Qd7 g7 Bb7 Ra7 Qd4 Nf3 g1B Rh3 Bhe3 Be7 Rh6 Ne1 Nd5 c7 Nb6 c6 Nc8 Nc2 Rg6 Qe1 Nh6 Bd1 Rf6 Qb8 Bef2+ Kg5 h4 Kh5 Ba8 Rb7 Na7 Qf1 Be3 Qf4 Rg6 Bf6 Bef2 Nc3 b1N Bb2 Na3 Nb1 Be3 Na1 Nc2 c8B+ Qd7 Qc7 Bc5 Qa5 Bb6 c7 Bgc5 Rh1 h3 g8Q+ Nf7 Qh7 h2 Qh8 Nh6 Qh7 Nd4 Nc2 Nb3 Re1 Na1 Re3 h1Q+ Rh3 Ng4 Qh8 Qf3 Qhh6 Qa3 Qh8 Kf7 Qhh6 Qd4 e6+ Kg8 e7 Kf7 Qh8 Nh6 e5 Qdb4 Rb8 Bf3+ Bg4 Be2 c8Q Qd4 Qcd8 Qae3 Rb7 Qa3 Bf3 Ke6 e8B Qc4 Qc7 Qd4 Bg4+ Kd5 Qb8 Kc4 Rd7 Nb3 Rc7 Na1 Bd8 Rc6 Bf6 Qg3 Qh7 Kb3 Qhe4 Qgc3 Bg6 Qcd3 Qh1 Q3c3 Rh2 Qcb4 Rh4 Qa3 Rh3+
q6N/k2r2N1/6Pb/2BqRN2/2pq2Bp/1RNrb2N/K1Q1R3/n2r1QR1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 Bh3 g5 Bg2 f5 Bf1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Ra5 Ne5 Ra2 Nf7 Ra1 Ng5 hxg5 Be7 Rh2 Bd6 Rh1 Bf8 d4 Kd7 Kd2 Kc8 Kc3 Kb7 Kb3 c5 e4 h5 f6 a5 d6 h4 f7 f2 g6 c4+ Ka2 f3 b4 g3 b6 a4 b5 g2 d7 a3 e5 Ra6 e6 Qc7 d8R Qe7 d5 Rh7 d6 Bg7 f8Q Rh8 d7 Rh5 Qc2 Re5 Rh2 Rc5 Nc3 Rf5 Be3 Qd6 e7 Ra7 e8N Nf6 Bc5 Qd5 Be2 f1R Nh3 f2 Bg4 Bh6 Ng7 g1B Re8 Rd1 Re5 f1Q Rhe2 Qfg2 d8N+ Ka8 Rc1 Bge3 b7+ Kb8 Rb1 Nd7 Rb3 Rg5 Qf1 Qd4 Nf7 Qgd5 Rb1 Rf5 Nh8 Rf3 Ka1 a2 Rc1 Kc7 b8N Kb7 b6 Rg3 Nc6 Rf3 Ba3 Nc5 Ne7 Nb3+ Kb2 Rg3 Bc5 Na1 Nef5 Kb8 Rb1 Rd7 b7 Rf3 Bf8 Ka7 b8R Bd2 Rc1 Rd3 Rb3 Bde3 Bc5+ Ka8 Qf4 R1d2 Rf1 Rd1 Rb5 Nb3 Ra5+ Kb7 Rg1 Kb8 Ka3 Kb7 Qf1 a1Q+ Kb4 Qa2 Ra3 Na1 Rb3 Qa8 Ne8 Ka6 Ka3 Qd6 Ka2 Q6d5 Bd6 Ka7 Neg7 Ka6 Ba3 Ka7 Bc5+
1B4qR/3Rb3/k1n2p1R/1P1Q1pN1/r1B1qR1K/2Br2r1/q1Bn3N/5RQ1 b - - 0 1 illegal: No possible last move
3R1N2/4rn1B/1qPB1q2/2BN1Q1Q/K1NNbrqR/3r1p1b/2B1B1pk/8 b - - 0 1 legal: proof: d4 b5 h4 e5 f4 g5 a4 c5 axb5 f5 g3 g4 Qd2 Be7 Qd1 Bg5 hxg5 cxd4 Rh2 Na6 Rh5 Nb4 Rh1 Nd5 fxe5 f4 Bh3 f3 Bf1 Nf4 gxf4 Ke7 Qd3 Kf8 Qd1 Ke8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb3 h5 e4+ Ke6 f5+ Kf7 g6+ Kg7 b6 a5 f6+ Kf8 c5 d5 b7 h4 b8Q g3 e6 g2 f7 Kg7 f8N Kf6 c6 d3 e5+ Kf5 e7 Kg4 e8N Kg3 e6+ Qd6 e7 d4 g7 h3 Nc7 d2 e8B d3 Nd5 h2 Ka4 Qc7 b4 Rh7 b5 Bh3 b6 Nh6 g8B Nf7 Qc2 d1B b7 d2 Be2 Rg7 Qa7 Qb6 Ba3 Rg4+ Bb4 Rf4 Na3 Rd8 b8B Rd7 Bh7 Re7 Ba6 Be2 Bd6 d1R Nc4 Bd3 Bbc5 Be4 Ra2 Rd3 Ne2+ Kg4 Rd1 h1Q Nd4 Kg3 Qd7 Qf1 Qf5 Kh2 Qh5 Qe1 Rb2 Qg3 Rb4 Qg6 Bd7 Qg4 Bdf5 Qd8 Kb5 a4 Qb1 a3 Ka4 a2 Bfg6 Re3 Rd2 Qb6 Qd3 Bf5 Qe4 Rc3 Qe5 Bb1 Bc2 Rd3 Qef5 a1Q+ Na3 Rde3 Be2 Qc3 Nc4 Rd3 Nde6 Qf6 Nd4 Qc7 Rb8 Qb6 Rd8 Re6 Rd1 Re7 Rh1+ Kg3 Nc3 Rde3 Bb3 Be4 Na3 Rd3 Nd5 Qgg6 Rb1 Bg4 Rh1 Qg8 Rh4 Bh3 Bbd1 Qg4 Nc4 Kh2 Bc2
1r4nr/1k1nNP2/2Nq4/BRQ1pqQ1/R4R2/qp2K3/2BB1r2/BBR2b2 b - - 0 1 legal: proof: g4 a5 c4 f5 e4 g5 exf5 d5 cxd5 e6 h4 Bc5 hxg5 Bb6 f4 Ne7 b4 axb4 f6 Ra5 g6 Ng8 g5 Ra8 f5 Bc5 Bd3 Bf8 Bf1 Bg7 fxg7 Qe7 Qb3 Qf6 Qd1 Qd8 Kf2 Kd7 a4 h5 d4 b5 f6 c5 d6 Kc6 d5+ Kb6 d7 b3 d6 b2 a5+ Kc6 f7 b4 a6 b3 a7 c4 Ra5 c3 Ke3 h4 Rb5 c2 Nc3 b1R Qh5 h3 Nge2 h2 Bd2 c1Q Nd5 Qb6+ Nd4+ Kb7 d8B Na6 d7 Nh6 g8Q Qc3+ Bd3 Qc7 g7 Qc1 g6 Qc4 Ne7 Rd1 Bc2 Nb8 Qc5 Rb1 Rc1 h1Q Ndc6 Qg2 Bc7 Qgf1 d8B Rb2 Be5 Ra2 Ba1 Nd7 Bb1 Rb8 a8R e5 Ra4 Rb2 Bc7 Nf6 Qd8 Qc2 g8B Qcf5 g7 Nd7 Bh7 Ng8 Bg6 Qc4 Bc2 Qb4 Bb1 Qh5 Bgc2 Qa3 Rf4 Qf5 Ra4 Nh6 g8R Ra2 Rgg4 Ng8 Rgf4 Rb2 Rba5 Qbb4 Bb6 Ra2 Qc4 Qd6 Rb5 Rb2 Be4 Rc2 Qc5 Ra2 Bdc3 Rf2 Bd2 Nf8 Bed3 Be6 Bdc2 Bc4 Bda5 Nd7 Bd2 Nh6 Qg8 Bf1 Qg5 Ng8 Bba5+
Bq1RRQ2/1Pk4n/RQ2qR1p/4r3/2p1B1Qq/2b1KbQ1/1n3N1Q/N2b4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 f4 f5 exf5 g5 b3 Bd7 f6 Na6 f5 Bc8 Bb2 Nb8 h4 a5 g4 Bh6 h5 Bg7 Be5 Bf8 Bf4 gxf4 g5 Nh6 Rh4 Rg8 Rh2 Rg6 hxg6 Ng8 Rh1 Bg7 Nf3 Qd7 Rh6 Na6 Rh1 Bb7 Rg1 Kd8 Bg2 Nh6 Ra4 Rc8 Ra2 Nb8 Ra1 Qd6 Qc1 Kd7 Qb2 Rh8 Qc1 Bc8 Rh1 Ng8 Ng1 Bf8 Qd1 Ke8 Bf1 Qd8 Ke2 Kd7 d4 c5 b6 e5 d6 c4 f7 h6 d5 e4 g7 a4 f6 a3 b4 a2 b5 e3 g6 Ne7 g8B Qe8 g7 Bb7 Nd2 Rh7 Nh3 Nf5 Nb3 Na6 Bg2 Nc5 Re1 Kd8 d7 Rh8 Bh7 Ne6 g8Q Bb4 f8R Bc3 f7 Ng5 Bg6 Nh7 Rf1 Ke7 d6+ Ke6 d8Q Qc6 Rb1 a1Q d7 Qa7 Ra1 Ba8 Bd5+ Kd6 Ra6 Qac7 Kf3 e2 Na1 e1Q Qg7 Rg8 Re8 Ne3 Bc2 Qh4 Qg3 Rg7 f8Q+ Re7 Kf2 Bb7 Qg4 Nd1+ Kf3 Nb2 Qh2 Bh8 Qb8 Be5 d8R+ Qd7 Ke2 f3+ Kd2 f2 Bh1 Bd5 Ke3 Bb7 Bf5 Be4 Bg6 Bc2 Ba8 Bd1 Bge4 Na4 Re1 f1B Re2 Nb2 Rf2 Bfe2 Rf6+ Kc5 Nf2 Bc3 b7 Qcd6 b6 Bf3 Qc7+ Q7c6 b8Q Re6 Qcg7 Re5 Qgg2 Qd7 Q7g4 Qe6 Qg2g3 Kb5 b7 Kc5 Ra2 Kb6 Ra5 Qc7 Ra3 Qc8 Qa7+ Kc7 Ra6 Qb8 Qb6+
2N1Q2q/1p3q1N/R2Q4/P1bnR1Rn/b2NN2K/1r2RBn1/kb1B1p2/3N4 b - - 0 1 legal: proof: c4 a5 f4 h5 d4 e5 fxe5 c5 b4 axb4 g4 d5 cxd5 c4 gxh5 Ra3 Kd2 Ra5 Ke1 Rc5 dxc5 Bf5 Nf3 Bd7 Ng1 Bc8 Kf2 Kd7 Kg3 f5 e4 g5 h4 c3 a4 c2 d6 Ke6 h6 g4 c6 b3 c7 b2 h5 Bd7 c8N Nf6 h7 f4+ Kh4 g3 h6 f3 Nh3 f2 Rg1 g2 Nc3 b1Q Bd2 c1B Be2 Rg8 h8R Qb4 h7 Na6 Bf3 Bb5 d7 Qda5 d8N+ Kd7 e6+ Kc7 e7 Rg3 e8R Qd6 e5 Bb2 e6 Nh5 e7 Qf6+ Ng5 Nb4 Nc6 Qf7 Nd4 Qa8 Nge4 Nd5 a5 Qb8 Ra3 Ba4 Rg8 Qa8 h8Q Kd7 Re1 g1N Rg5 Ne2 Rd8+ Kc7 Rd6 Qb8 Rh6 Kd7 e8N Bc5 Qg8 Qe5 Qf8 Qh8 N8f6+ Kc7 Nh7 Rh3+ Kg4 Neg3 Qe2 Kd7 Nd1 Kc7 Re3 Kd7 Qd3 Kc7 Ne6+ Kc6 Qd4 Kb5 Qe8+ Qd7 Qe5 Kc4 Qd6 Qdg7 Nd4 Qf7 Ndc3 Kb4 Rf6 Ka3 Nd1+ Ka2 Re6 Rh2 Ree5 Rg2 Kh4 Rg1 Rb3 Rf1 Ree3 Re1 Rb6 Re2 Rc3 Re3 Ra6 Rd3 Rc2 Ra3 Rc3 Rb3 Re3
k5K1/3NR2p/bQ1Pr2B/1Nq1p2B/2b1QR2/2nb2N1/Nn1b2bB/5BN1 b - - 0 1 legal: proof: d4 b5 e4 c5 dxc5 d5 a4 a5 axb5 g5 h4 gxh4 f4 e5 f5 d4 Be2 Ra6 Bf1 Qd5 exd5 Re6 fxe6 Ke7 Ra4 Kd8 Ra1 Ke8 Ke2 Kd8 Kf3 Kc7 Ke4 Kb7 Kf5 a4 g4 h3 c4 d3 b4 f6 b6 a3 g5 h2 c6+ Ka8 c5 a2 b5 d2 g6 Bh6 c7 Kb7 d6 Bd7 c8Q+ Ka8 g7 Be3 b7+ Ka7 c6 Bc5 c7 Na6 b8N Nb4 b6+ Ka8 b7+ Ka7 Qc2 d1B Bh6 Nc6 Qe4 Na5 Nc3 Bb5 e7 Bb4 Ke6 f5 Kf7 f4 e8B f3 Qd8 f2 Nd7 Nf6 g8N Ba6 Ne7 Bc2 Nf5 Nc4 Ng3 Nd5 b8B+ Ka8 c8N Nb2 Na7 Bcd3 Qb6 Rf8+ Kg7 Rf6 Bh5 Re6 Kg8 Bdc4 Rc1 a1Q Na2 Bd2 Nb5 Bd3 Rc4 Qc1 Rc7 Qc5 Ba7 Bc4 Nf8 Bd3 Re7 Bc4 Nd7 Bd3 N1e2 Bc4 Rg1 h1B Rg2 Bd3 Ng1 Bc4 Rh2 Bg2 Rh4 Bd3 Qe3 Nc3 Rf4 Bd5 Qe4 Bc4 Bh3 f1B Bg2 Bfe2 Bf1 Bed3 Qa5 Nbd1 Qe1 B3e4 N1e2 Qc7 Bg1 Bed3 Bh2 Bg2 Ng1 Nb2 Qb6 Qc5 Qe4+
3N1B1n/NQB1p3/1r1R1Rn1/1b2n1RR/3N2N1/1p3q2/3K1QP1/n2Rrkn1 b - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 a4 f6 a3 bxa3 g6 a4 Ra6 a5 Ra8 f4 Bf5 h4 Na6 f7+ Kd7 Bd3 Bh6 Be4 Bg5 hxg5 Be6 f5 Nb8 f6 Bg4 Bd3 Be6 Bf5 gxf5 Qf3 Kd6 Qg4 Bc8 Qd1 Kd7 f8R Kd6 d4 h5 a4 c5 f7 b5 g6 b4 a6 b3 a5 f4 a7 f3 a6 h4 g7 f2+ Kd2 f1N+ Ke1 c4 Ne2 c3 Bg5 c2 Bd2 c1N Rh2 h3 Qc2 Nc6 Nbc3 Rh6 Bf4+ Ne5 Qf5 Ne3 Kd2 Nd3 Rd1 Rb8 a8R Re6 a7 Nh6 g8N Bd7 Nf6 Bb5 Ng4 Nc2 Rg8 Qa5 f8B Nf7 Rg5 Rb6 Bg3 Qa6 Qf2 Nf4 Rb8 Nfg6 a8Q Nfh8 Qb7 Qa4 Ra8 Qc4 Ra6 Qc7 Rhh1 h2 Bf4 Kd7 d6 Na1 Qc8+ Kc6 d7 Kd6 d8N Qb7 d5 Qc6 Nd4 Kc5 d6 Kc4 Qb7 Qf3 Rhe1 h1N d7 Ng3 Rh1 Ne2 Rhh5 Ng1 Bh2 Nd3 Bg3 Re1 Bc7 Bc6 Ncb5 Nde5 Na7 Bb5 N8c6 Kd5 d8R+ Ke4 Rd6 Kf4 Qf1 Kg3 Nd8 Qe4 Qf5 Qf3 Nh6+ Kf2 Ng4+ Kf1 Rf6 Ba4 Qf4 Rb4 Rac6 Rb6 Rcd6 Bc6 Qe3 Bb5 Qf2+
bb1BR3/2NkbqN1/7p/1QPNb1RN/5B2/Qr5R/Nrnp1r2/4R2K b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 Kf7 exf5 g6 d4 Qc7 dxc5 Qd8 f6 Ke6 f7 Bg7 Be2 Bh6 Bf1 Bf8 g4 Na6 h4 Bh6 f5+ Kf6 g5+ Ke5 f6 Bg7 Bd3 Bf8 Be4 Nc7 Bf5 gxf5 g6 Ne6 Qg4 Ng5 hxg5 Kd5 Qd1+ Ke6 Kf1 d5 Kg2 a5 c4 h6 b4 f4 g7 a4 b6 a3 b7 d4 b8Q a2 g6 d3 b5 Ra7 b6 Rc7 b7 Kd7 c6+ Kd6 c5+ Ke6 Nc3 Qd7 Nd5 Qd6 Ne2 Qd7 Rh3 f3+ Kh1 f2 Bg5 d2 Nec3 Rh7 Rc1 a1B Na2 Be5 Qa4 Qe8 Rg1 f1R Qa3 Rf2 Re1 Rd7 c7 Rd6 Nab4 Kd7 Na2 Rb6 Bh4 e6 Bg5 Ne7 g8N Rh8 g7 Nf5 Bf4 Bfd6 f8B Qf7 Be7 Rb2 Bd8 Nd4 Nge7 Rg8 Nf5 Nc2 Ng3 Rh8 g8R Be7 Rg5 Rf8 Nh5 Rg8 Rgg1 Rg3 Rg2 Rgb3 Rg5 Qh7 f7 Qf5 Qba8 Qg6 b8R Bb7 Q8a6 Ba8 c8N Qg7 Na7 Qf6 Rb4 Bb8 Qc4 e5 Nb5 e4 Nbc7 e3 Qf1 e2 f8N+ Kc6 Rb5 Qf7 Nfe6 Kd7 Rb7 Rb4 Neg7 R4b3 Rd1 e1B Rb6 Rg2 Re6 Bg3 Rde1 Rf2 Qc4 Bf6 Re8 Be7 Be3 Bgd6 Bf4 Be5 Qb5+
1n2NqNB/7k/3r2R1/2R1bB1K/1N1qPb1p/b1b1R1pQ/2Q5/1Rn2R1N b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 f5 g4 f4 c3 a6 c4 dxc4 h3 g5 Qa4 a5 Qc2 Bf5 gxf5 g4 Qa4 g3 Qd1 Ra6 Na3 Rg6 Nb1 Rg4 hxg4 Qd7 Rh4 Qc8 Rh1 Qd8 e4 Kf7 Ke2 Kg7 Kf3 c5 b4 h5 d4 a4 e6 c3 g5 c2 d5 c4 b6 h4 Kg4 a3 g6 a2 b5 c3 d6 f3 b7 f2 d7 Bc5 f6+ Kf8 b6 Rh7 f7 Kg7 f8Q+ Kh8 e7 Rh6 e8N Qf6 d8R Qe5 g7+ Kh7 Na3 Rh5 Nh3 Qe7 Rd5 Kg6 Bb2 c1B Qc2 Kh7 Rb1 Bb4 Rc5 Rh6 Qf5+ Rg6+ Kh5 Nh6 g8N a1B Bb5 f1Q Bd7 Qg1 Nf2 Qf7 Qh3 Ng4 Bf5 Bf4 Re1 Qf8 Re3 Qd1 Rf1 Qd4 Nh1 Ne5 Rc7+ Nbd7 b8R Nd3 b7 Nc1 Rc5 Ba5 Rd8 Nb8 Rd6 Bc7 Qd1 Ba5 Nc2 Bc7 Ra6 Bce5 Nb4 c2 Rac6 Ne2 Bc3 c1B Qc2 Ba3 Ra6 Nc1 Rd6 Nc6 b8R B1b2 Na6 Ba1 Rb1 Nb8 Nb4 B1b2 Rb6 Ba1 Bd7 Rd6 Bb2 Rd5 Rg6 Rd6 Bf5 Nd3 Bc1 Bc3 Bb2 Nc1 Qd2 Bh8 Rc6 Qc5 Nd5 Bcb4 Qc2 Be1 Be5 Qd4 Rc5 Bc3 Nb4 Bg7 Bf6 Bh8 Be7 Bhe5 Bf6 Bab2 Bg7 Ba3 Bh8
BN1K1Rb1/8/3Q2pR/2P3nb/1Bb1QQ1Q/qB4rp/3b1kn1/1BNB3q b - - 0 1 legal: proof: h4 a5 d4 f5 a4 c5 f4 cxd4 g4 b5 axb5 e5 gxf5 g6 fxe5 Ra6 h5 Re6 h6 Re7 Bf4 Nc6 Bc1 Rg7 hxg7 Nb8 Kd2 Kf7 Kd3 h5 Kc4 d6 Kd5 a4 e4 a3 b4 d3 c4 a2 c5 h4 e6+ Kf6 e5+ Ke7 f6+ Ke8 f7+ Ke7 b6 d2 b7 Bd7 b5 Qe8 b6 Na6 b8Q Rh7 b7 Rh8 Qh5 d1B Qa8 Rh7 b8Q Rh8 Nf3 Nh6 g8B Qd8 Nd4 Be2 Bd2 Qe8 Bb4 Ng4 Nd2 Bh6 N2b3 Bd2 Nc1 Ba4 Rb1 a1Q Rh3 Beb5 Bd3 Qa3 Ra1 Qf8 Bb1 Qh6 Rf3 Bf1 Rf6 Bd1 Kc6 d5 Kb7 Bd3 Kc8 Nc7 Qg5 Bc4 Nc6+ Kf8 e7+ Kg7 e8B d4 e6 d3 e7 Ne6 Qgf4 Ne3 Qbd6 Bdb3 Nb8 Ng2 Bc6 Ng5 e8B Qh5 Qf2 Kh6 Kd8 Qd1 f8Q+ Kh5 Be4 Kg4 B8c6 Qh1 Bf3+ Kh3 Rf4 Rh7 Qfd4 Kg3 Qe4 Re7 Qa4 Kf2 Ba8 h3 Rh4 Rf7 Rh6 Rf4 Ra2 Rg4 Qff4 Rg3 Ra1 Bc3 Qh4 d2 Qef4 d1B Qe8 Be1 Qee4 Bd2 Bgd5 Qb2 Ra7 Qa3 Rf7 Ba2 Rf8 Bde2 Bdc6 Bg8 Ba4 Bae6 Bac2 Bg4 Ba4 Bh5 Bb3 Bec4 Bfd1+
1r2bRB1/3p1bq1/3bnp1b/3K2k1/B4R1r/QB1NB2P/2BR1R1q/3QN3 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Nc6 Kd2 Nf6 Ke1 Na5 bxa5 Ng8 Kf2 Ke7 Kf3 g5 Ke4 f6 c4 a3 b6 a2 e6 d3 b7 d2 b8Q g4 c5 g3 a6 g2 h3 Rh6 a7 Qe8 c6 Bg7 c7 Qf8 Qbb3 Qe8 Nf3 g1B Na3 Bc5 Rh2 Rh7 h6 Bb4 Nc4 Bf8 Rf2 Qf7 Nb2 Bc5 Ne1 Qg7 Kd5 Qf7 e4 Bb6 e5 Qg7 Bb5 Qg3 Ba4 Bd4 Qa3+ Bc5 Nbd3 Ba6 c8R Rb8 a8B Bd6 Rc4 Qh2 Rcf4 Bb5 Rb1 a1Q Rb2 Rh8 h7 Nh6 Bc6 Nf7 Bb3 Nd8 Bc2 Ba6 B6a4 Bh6 Ra2 Ke8 e7 Kf7 e6+ Kg6 e8B+ Kg5 e7 Ne6 Bf7 Bb5 e8B Bc4+ Ke4 Qc3 Bg8 Bb3 Bef7 Qc7 Qf3 d1B Be3 Qa5 Qh1 Bh5 Qf3 Qd8 Qd1 Qf8 Rd2 Qg7 Rb2 Nc7 Kd4 Ba2 Bfb3 Ne6+ Kd5 Rb4 Bf7 Rhb8 h8R Re4 Rf8 Bg6 Bg8 Be8 Bg1 Reb4 Rff2 Rg4 Rf4 Rh4 Be3 Bc5 Rdf2 Bd6 Bc4 Rb4 Bb1 Bb3 Ke4 Nd4 Rbd2 Rb8 Bc2 Ba2 Ba6 Be6 Bc4 B6f7 Bc4b3 Ne6 Kd5
Q2n1Qk1/3b3N/1K1RnBnb/N1p3B1/1Br2n2/4NB2/3PR1pn/1r2B2N b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 f5 e4 d5 exf5 b5 axb5 a4 cxd5 Qd6 Ra3 Qa6 Ra1 Qa5 bxa5 Ra7 Bd3 Ra6 Bf1 Ra8 Ke2 Kf7 Ke3 g5 Kd4 a3 Kc5 e5+ d6 c6 h4 e4 f4 e3 a6 e2 b6 e1N b7 g3 f6 a2 a7 g4 f5 g2 h5 g3 h6 Be6 h7 Bh6 d7 Bc4 d8N+ Kf8 f7 Bd3 Be2 Bc2 Na3 Bf4 Bf3 Bc7 Nc4 Kg7 f8B+ Kf6 Nh3 g1N Rh2 Bd6+ Kb6 c5 Nf2 Bd3 Qe2 Ng2 Nh1 Nc6 b8B Bf4 Be7+ Kg7 Ne3 Bh6 Nb7 Bb5 Ba3 Nf4 Na5 Nd8 Bb4 Bd7 Bg5 Ne7 f6+ Kf8 f7 g2 Re1 a1N Rh5 Kg7 f8N Nc2 Bc7 Rc8 a8Q Neg6 Bd6 Rg8 h8B+ Kf7 Bhf6 Nd4 Bde5 Nd4e6 Nh7 Rh8 Bd6 Kg8 Bde7 Rc7 Bh4 Ra7 Rd5 Rc7 Rd4 Rc8 Rd6 Rb8+ Bb7 Nf3 Bfg5 Rc8 Bef6 Nh2 Bf3 Rc7 Qea6 Ra7 Re2 Rc7 Q6a7 Rb7+ Ka6 Rb5 Be1 Rb8 Bbc3 Rb1 Bb4 Bc6 Qe7 Bd7 Nf8 Rh7 Kb6 Rf7 Nh7 Rf8 Ba1 Rf5 Bd4 Rd5 Be5 Rd4 Bef6 Rc4 Qf8+
Q3Q3/PQk3N1/B1n2rr1/2p2b2/nR1p1b1B/1KNN1r2/1b3rN1/QN5R b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 g4 c5 gxh5 b5 d4 Qc7 d5 Qc6 dxc6 Ra6 cxb5 Ra8 b4 axb4 Kd2 Kd8 Kc2 g5 a4 e5 f4 d5 h4 e4 c7+ Kd7 a5 d4 f6 e3 a6 e2 h6 e1B f5 g4 a7 g3 f7 g2 b6 Bb7 c8Q+ Kd6 h5 Na6 h7 Nc7 f6 Bf3 h6 Na6 b7 Be7 f8N Nc7 b8Q Bg3 f7 Nf6 Ba6 Ne4 Ra4 Bg4 Kb3 Bf5 Ng6 Bf4 f8N Nc3 Ne5 Beg5 Ne2 g1R Ne6 Rf8 h8N Rf6 Qb5 N7d5 h7 Ne7 Qce8 Nc6 Ng7 Kc7 Nd3 Rg3 Qe1 Rf3 Ng6 Rb8 h8Q Rb6 Nh4 Rf2 Ra5 Na4 Nec3 Rf3 Ng2 Bh6 Kc4 b3 Bd2 b2 Kb3 Rg6 Qf1 Rf6 Be1 Bc1 Bh4 Bhf4 Qb4 Rf2 Rb5 Rg6 Qa3 Rf6 Rb4 Rg6 Nd2 b1R+ Qb2 Ra1 Ndb1 Rf3 Qa8 Ra2 Qa1 Raf2 Qhe8 Bb2 Qfe2 Nb8 Qb5 Rbf6 Qee8 Nc6 Qbb7+
4Q3/Nq5Q/rqp3r1/N2Q1Rr1/2NQ1p1K/4Nr1n/Qbk2PR1/q1B4B b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 exd4 a4 f6 axb5 f5 Bh6 Nc6 Bc1 f4 h3 Bf5 gxf5 g5 h4 g4 Qb3 Ne5 Qd3 Nf7 Qd1 Ng5 hxg5 Rc8 Ra5 Rb8 Ra1 Ra8 b4 Kd7 e4 Kd6 e5+ Ke7 e6 Kd6 g6 Ke5 g7 Ke4 e7 a5 e8Q+ Be7 d6 h5 b6 h4 d7 g3 f6 g2 f7 h3 f8Q a4 b7 d3 b8N d2+ Ke2 h2 b5 a3 b6 a2 b7 Nh6 g8Q Kd4 Kf3 Bg5 Qf5 Rh7 Na3 Kc3 Nc4 Rf7 Qfh7 Be7 Ne3 Ra6 Nc6 Qb8 d8Q Bf6 Qd5 Rg7 Na5 Nf7 Bd3 Rg4 Be4 Rg6 Qda4 Ng5+ Kg4 d1Q+ Kh4 Qd4 Nf3 g1R Ne5 Qb6 Ne5c4 Bd4 Rb1 a1Q Rb5 Nh3 Bg2 Qc8 b8N Qcb7 Nbc6 Bg7 Bf3 R1g5 Rg1 h1R Na7 c6 Rg2 Rd1 Qgh8 Rd3 Qa2 Bd4 Rh2 Be5 Bh1 Bd4 Rg2 Bg7 Ng4 Rf3 Nge3 Bd4 Qde6 Kd3 Rf5 Bb2 Qd5+ Qd4 Ng4 Kc2 Qf6 Qc5 Qfd4 Qcb6 Nge3+
n4nbk/8/1P3nNn/K1QNN1R1/nNB2rpn/2B4Q/2pQ4/Q1R1N1q1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Kf2 g5 Ke1 a5 h3 Bh6 h4 Ra6 Qc2 Rf6 Qd1 Rf5 gxf5 g4 Rh2 Qd6 Rh1 Bg5 hxg5 Qd8 e4 Kf8 b4 Kg7 d4 c5 Kd2 h5 Kc3 h4 f6+ Kh7 b6 f2 e5 c4 d6 h3 e6 h2 e7 a4 e8Q a3 f7 a2 f8Q f3 b5 Nc6 d5 Bf5 d7 Qc7 d8Q Nce7 Kb4 c3 d6 c2 d7 Bd3 b7 Qc5+ Ka5 Bc4 b8N Nf6 Bd2 Bg8 Nc3 Ng6 Bc4 f1N Nc6 f2 Qe3 Ng3 Nb4 f1N Nf3 Nf5 Ncd5 Nh6 Rc1 a1N Bc3 Nd2 Ne1 Qd4 Rf1 h1N Rf5 Ng3 Qc5 Nf8 g6+ Kg7 Rg5 Ngf5 Qa8 Nh4 Qh3 Qg1 d8N Rh7 Ndc6 Kh8 Ne5 Rf7 Kb6 Nab3 Qa1 Nde4 Qe2 Nd4 Qd2 Nde6 Ka5 Nc7 b6 Na8 g7+ Kh7 Qe7 Nc5 Qd6 Na4 Qc5 Nh5 Kb5 Rf4 Ka5 Be6 g8N Kh8 Nge7 Nf6 Qf3 Bf7 Qh3 Bg8 N7g6+
1r1n3R/1P1p2r1/p3BrQ1/nQrr4/1Q3Q1R/1R2BQ2/nK2NR2/N2qk3 b - - 0 1 legal: proof: d4 b5 e4 c5 f4 cxd4 a4 f5 exf5 Nh6 axb5 Ba6 f6 Bc8 g3 Ng8 h3 g6 f5 Bh6 Ra2 Bb7 Ra1 Bf4 gxf4 Bc8 Be2 g5 Ra5 g4 Bc4 g3 Bf1 Bb7 Ra2 Bf3 Ra1 Bg4 hxg4 Kf8 Rh2 Kf7 Rh1 Ke8 Kd2 Kf7 c4 h5 Kc2 e5 b4 d3+ Kb2 h4 b6 d2 c5 h3 c6 g2 c7 h2 c8R e4 g5 a6 g6+ Ke8 b5 e3 b7 e2 b6 e1N f7+ Ke7 f8R Kd6 g7 Kd5 f6 Kd4 f7 Ke3 f5 Kf2 f6 Rh5 Ne2 g1R Na3 Rc5 Rb1 Qc7 Bh3 Rg6 Nc2 Ne7 g8Q Qd6 Na1 Rg7 Be6 Nbc6 b8Q Nc2 b7 Qd3 Qe5 N2b4 Qa4 d1R Qb5 Nd8 Qf4+ Qf3 Bd2 Na2 Be3+ Kg2 Qh7 Rb8 Qg6+ Qg4 Rh8 Rdd5 f8Q Nec6 f7 Na5 Rhf1 h1R Rh4 Rg1 Q8d6 Rh1 f8Q Rh3 Qfb4 Rf3 Qff7 Rf6 Qdf4 Ndc6 Rch8 Nd8 Ng3 Qd1 Ne2+ Rg5 Ka3 Rd5 Rb3 Rc5 Kb2 Rd5 Rf3 Rc5 Bf2 Kf1 Qf8 Rgd5 Qff7 Rc3 Be3+ Ke1 Qff8 Re5 Rf2 Rd5 Qbe4 Rc1 Qef3 Rc4 Qa3 Rcc5 Qab4+
1NrbQ3/1r2B2k/1PB1B3/r1B3N1/2b4p/qR3N1b/1b1N1p2/rBR2Q1K b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra3 g5 Ra2 f4 Ra1 Nh6 h3 Nf5 gxf5 Nd7 h4 g4 Qc2 Nc5 Qa4 Ne4 Qd1 Ng5 hxg5 Ke7 Bg2 Kd7 Bf1 Ke8 Kf2 Kf7 d4 Kg7 b4 h5 e4 c5 g6 a5 d6 a4 d5 c4 b6 c3 b7 h4 b8N a3 b5 a2 d7 c2 d6 Ba6 e5 Qc7 d8N Qa7+ b6 Qf7 e6 Kg8 d7 Qe7 f6 Bb7 f7+ Kg7 Nd2 Qe8 e7 Ba6 Rb1 a1B Nb7 Bc4 d8Q Bf6 Nc5 Qa4 e8B Qa3 Rb3 B8e7 Nce4 Rh7 Bc6 Ra5 Qe8 Bd8 Bd3 Bb2 f8B+ Kh8 Qe2 Rb7 g7+ Kh7 Be7 g3+ Kf1 f2 Kg2 Ba6 Qe1 Bc4 Ngf3 f1B+ Kg1 Bg2 Qf1 Bh3 Bc5 g2 g8B+ Kh6 Kh2 g1R Be6 Rg8 Rg1 Kh7 Kh1 Rh8 Ne1 f3 Be7 f2 Nef3 Bf6 Bb2 c1R Bb1 Re1 Bd4 Rg8 Bdc5 Bb2 Bc2 Ra1 Bb1 Rba7 Qd3 Rc7 Rc1 Rg7 Qf1 Rc8 Bg5 Rd7 Bge7 Rb7 Neg5+
1Q2Rb1Q/n1pp2N1/K2pb1Q1/5r1q/PN6/RN2rnB1/1bB2k2/2N3NQ b - - 0 1 legal: proof: c4 b5 cxb5 a5 b4 h5 bxa5 f5 d4 f4 g4 f3 gxh5 Rh7 d5 Ra6 d6 exd6 exf3 Rh6 f4 Ra8 f5 Rh8 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 h4 Ke4 f4 g5 a4 g4 a6 g3 b6 g2 Kb5 Bb7 f6 Bd5 a7 Qe8 f7 Bb7 f5 Qd8 f6 Be7 f8Q Qe8 f7 Nf6 h6 Rg8 h7 Rh8 h5 Nd5 h6 Bf6 Bf4 Qe6 Ra3 Qe5 Qg8 Qf5 f8N Bd4 Qg6 Nc6 Ne6 Nd8 Bg3 Be5 Bd3+ Ke3 Bc2+ Bc3 Nd2 Re8 h8N Nc6 h7 Qh5 Nf7 Ndb4+ Ne5 Nd3 h8Q Bb2 Nb3 Ne1 Ng7 Nf3 Qf1 Rab8 a8Q Na7+ Ka5 Bd5 b7 Rbc8 b8N Be6 Na6 Re7 Qb7 Rf8 Qb8 Rf5 Nb4 Re8 Ka6 Re7 Nh3 g1B Ned3 Bf2 Qb1 Ke2 Rf1 Bfd4 Ng1+ Ke3 Ndc1 Bf6 Ne8 Bg7 Rd1 Bf8 Ng7 Bg8 Rd5 Re4 Re5 Be6 Bh2 Kf2 Bf4 Bd5 Re8 Re3 Bg3+ Kf1 Bd1 Be6 Qe4 Kg2 Bc2 Kf1 Qh4 Kg2 Qh1+ Kf1 Be5 Kf2 Bg3+
2r1B2K/1P2nQ2/4B2b/4Bn1q/Q2Q2Qp/Rp3QB1/1N2RN1p/rn1b2k1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 a4 b5 e4 d5 c4 f5 exf5 b4 cxd5 Qd7 Rh2 Na6 Rh1 Qb5 axb5 Nb8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 h5 f4+ Kh6 d4 c5 g4 e6 b6 c4 b7 h3 f6 h4 f7 c3 f5+ Kh7 d6 h2 g5 b3 g6+ Kg7 a6 c2 a7 Be7 d5 Rh5 f8Q+ Kh8 g7+ Kh7 d7 Bd8 d6 Bb6 d8B Bc5 d7 Rg5 Nd2 Kh6 Qf7 Ne7 Kf6 e5 g8B e4 Nh3 e3 Bb2 c1N Be5 e2 Ra3 e1Q Nf2 Ne2 Bdc7 Nc3 d8Q Rg1 Qg4 Nb1 Nc4 Qd1 Qdd4 Nbc6 Nb2 Be6 Bh3 Rc8 a8Q Bb4 Bcd6 Bd2 Qaa4 Bd5 Bh7 Bf3 Bg6 Qe2 Bg3 Qb5 Bc7 Bd1 Bce5 Re1 Rg1 Qc5 Rg2 Rg1 Qc3 Nd4 Qcf3 Qb5 Q7d5 Qe2 Be8 Bg5+ Kf7 Be3 f6 Ndf5 Qdd7 Bd2 Qgd4 Kg5 Kf8 Rf1 f7 Bf4 Qfc6 Qh5 Qf3 Nh6 Be6 Nhf5 Nh1 Rg1 Re2 Re1 Qf1 Kg4 Nf2+ Kf3 Qh3 Rd8 Qg4+ Kg2 Qdc6+ Kg1 Qcf3 Ng6+ Kg8 Bh6 f8Q Rc8 Qg7 Nge7+ Kh8 Bc2 Qdd7 Nd2 Qdd3 Ra1 Qf6 Bd1 Qdd4 Nb1 Qf7
3NBNq1/1rp1K2k/1R1B4/pR2n2B/1Q2P3/1qpB1bR1/B4R2/1rQn3r b - - 0 1 legal: proof: c4 d5 f4 dxc4 a4 e5 fxe5 b5 axb5 Nf6 b6 Ng8 b7 Qe7 Ra3 Qg5 Ra1 Qd8 h4 g5 hxg5 a6 b4 Bc5 b5 Ba7 b6 Bh3 bxa7 Bc8 Kf2 Kf8 Kg3 Kg7 Kf4 f5 g4 h5 d4 c3 d5 h4 d6 a5 e6 h3 Ke5 f4 e7 f3 e8B f2 d7 h2 Ke6 Rh4 g6 Na6 b8Q Rh6 g5 Rh3 Bf4 Rh6 Na3 Rh7 Qb4 Rb8 a8B Bb7 Qc1 Kh8 Ra2 Rc8 Nc2 Bg2 Nf3 Rh4 g7+ Kh7 Ne5 Rh3 Nc6 Ne7 g8B+ Kh8 g6 Rg3 Bd6 Rd3 N2d4 Rd1 e4 Re1 Bgf7 Kg7 Bd3 f1Q Rf2 Rb8 Bb7 Kh8 g7+ Kh7 g8R Bf3 Rg3 Nf5 Bh5 Ne3 Bc8 Qg5 d8R Qg8+ Ke7 Nd1 Be6 Nc5 Ba2 Rb7 Ne6 Nd7 Rb8 Ne5 Ncd8 Qg2 Rg1 h1R Rg5 Qf1 R1g3 Qe2 Rf5 Qb2 Rfg5 Qb3 Rf5 Ra7 Rb6 Rb7 Rfg5 Re2 Rf5 Rb2 Rfg5 Rb1 Rf5 Nf7 Rfb5 Ne5 Nf8+
3r2BQ/b2R1B2/N4Kpn/Q1r3Pr/R3N3/k1n4p/2np1QQR/2bR2R1 b - - 0 1 illegal: No possible last move, all moves rejected
1B1K4/1r3Rn1/RQ2N1pQ/3QB3/p2pr2n/2kQB1P1/1b2Q2q/nBn2N2 b - - 0 1 legal: proof: b4 a5 e4 b5 a4 f5 exf5 c5 axb5 g6 h4 Ra6 d4 cxd4 b6 Bb7 b5 Qc8 h5 Ra8 h6 Ba6 bxa6 Qc6 Ra3 Qf6 Ra1 Qg7 hxg7 Kf7 Bb2 Ke8 Ba3 Kf7 Bc1 Ke8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 h5 c4 e4 f4 d6 c5 d3 c6 h4 c7 h3 c8Q h2 a7 e3 b7 e2 g3 e1Q Qc5 d2 Nf3 Qe3 Qe2 d1N Qb6 Rh6 Nd4 Rh7 Nd2 Na6 Kc6 d5 b8B Nc5 Ne6 Nb3 Kc7 Nh6 Kd8 Ba3 g8Q Qg1 Qe8 d4 Q8b5 Bb2 Qbd3 Rb7 Ra2 Kf7 f6 Na1 f5 Ne3 Bg2 Qf2 Be4 Ng2 Nf1 Nh4 Be3 Qg2 Rg1 h1N Ra3 Qh2 Rg2 Ng8 Rf2 Ne7 Rf3 Nf2 Ra2 Nc8 Be5 Rab8 a8Q Re7 Qd5 Rbb7 Ra3 Nd6 Ra4 Ne8 Ra2 Ng7 Bb8 Kg8 f7+ Kh8 f8B Kg8 f6 Kf7 Qa3 Nd3 Bf5 Nf4 Bb1 Nd3 Rf4 Nc1 Qad3 Rec7 Bd6 Rc5 Qdc6 Re5 Qd5 Re4 Be5 Ba3 Rb2 a4 Rb5 Bb2 Ra5 Qg1 Rf3 Qh1 Ra6 Qh2 Kc8 Ke8 f7+ Ke7 B5f4 Kf6 Bbe5+ Kf5 f8Q+ Rf7 Qh8 Rb7 Kd8 Qg2 Q3c4 Qh2 Bb8+ Kf6 Qh6 Re5 Ba2 Kf5 Qdd6 Ke4 Qc3 Rg5 Be5 Rg4 Rf7 Rf4 Qda3 Rg4 Bb1+ Kd5 Qcd3 Re4 Qed1 Rf4 Qe4+ Kc4 Qad6 Kc3 Qe2 Rg4 Qd7 Rf4 Qed5 Rg4 Q7b5 Re4 Qbd3+
Q1R1NQb1/Qrn1Nr1N/1pqr4/2Q1KR2/1p1Q4/7k/n2p3P/BN3Br1 b - - 0 1 legal: proof: b4 a5 e4 axb4 g4 h5 gxh5 f5 exf5 c5 d4 e6 dxc5 Rh6 a4 Rh7 a5 Nc6 a6 Nb8 a7 Be7 Bg5 Na6 Bc1 Rb8 a8Q Rh8 Qa7 Ra8 Qb8 Bg5 Bxg5 Nc7 Bc1 Na6 Kd2 Kf7 Ke3 Kf6 Kf4 d5 c4 d4 c6 g6 c7 d3 c5 b6 h6 Qd7 c6 Qe8 h7 Bd7 c8N Ra7 c7 Rb7 Nh3 Ne7 Ng5 Rf8 Ra5 Rf7 Qa7 e5+ Ke4 Ba4 f4 Nd5 Ne7 Bb3 c8N Qc6 Bb2 Nac7 Ba1 d2 Qc2 Bc4 Nd6 Ba2 Qc5 Nc3+ Kd3 e4+ Kd4 e3 h8Q+ Rg7 Qha8 e2 Qd8 Rf7 Nh7+ Kg7 f6+ Kh6 f5 Kh5 Rb5 Kg4 Ke5 g5 Ne8 Kh4 Qda8 g4 Qd4 Be6 Rd5 Na2 Rd8 Bc4 Rc8 Bb3 Rg1 Bc4 Rg3 e1R+ Re3 Rc1 Rf3 Rc3 Rf4 Rg3 Rf2 Rg2 Rf4 Kh3 Rf3+ g3 Rf4 Rg7 f7 Bb3 f8Q Bg8 f6 Rf7 Ba6 Rf2 Rf5 g2 Bb5 g1R Bc4 Rfg7 f7 R7g6 Bd3 Rd6 Bf1+ Rgg2 Qg7 Rf4 f8Q Rf3 Qgf7 Rf4 Qfd5 Rf3 Bc4 Rg1 Q5c5 Rff1 Rg5 Rff6 Rf5 Rf7 Bf1+
R1r4Q/3BrpN1/q5rp/Q1Q4B/1N2kp1b/NPQ3r1/K3N3/3Rn1Nn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 e5 axb5 d4 f5 d3 cxd3 Ne7 d4 Ng8 d5 Ke7 Ra6 Kd7 Ra1 Ke8 e4 Ke7 b3 Qd6 Bb2 Be6 fxe6 Ke8 e7 Kd7 Bd4 Qf6 Be3 Kd6 Bf4 exf4 e5+ Kc5 e6 Kd6 Qg4 Qc3 Qe2 Qc6 Qh5 Qe8 Qd1 Qd8 e8N+ Ke5 g4 a5 d4+ Ke4 Kd2 c5 Kc1 a4 Kb2 c4 e7 h6 g6 Nd7 g7 Qb8 Nh3 Qe5 g5 Nb6 g6 Qe6 d6 Rb8 d5 Qe5+ Qd4+ Kf3 d7 Qh5 d8N Rh7 d6 Qf5 d7 Qc5 Ne6 Qc6 d8Q Nf6 g8Q Nbd5 b6 Rg7 b7 Ne4 Qc5 c3+ Ka3 c2 Nd4+ Ke3 Be2 c1R Bh5 Ng3 Ne2+ Ke4 Rf1 Qe6 Nhg1 Rc3 Rd1 Nh1 Kb2 Ra8 b8N Rg3 Qdb6 Kf5 Na6 Rc8 Ra2 a3+ Ka1 Ke5 Nb4 Ke4 Qc3 Ne3 Qh8 Ng2 Qcc5 Ne1 Qbc7 Rg8 Qhc3 Rh8 g7 Rh7 g8Q Rhg7 Qd8 R7g6 Ng7 Qc4 e8B Be7 Qh8 Bh4 Rad2 a2 Rd7 Nf2 Ra7 Nh1 Ra8 Qd3 Kb2 a1R Qdb6 Ra4 Na3 Ra7 Ka2 Re7 Bd7 Qa6 Qba5
b3KQN1/BQN2prQ/3R4/3p3p/R2Q1nr1/3n1P2/4QN2/nBr1r1Nk b - - 0 1 legal: proof: d4 c5 b4 b5 bxc5 e5 a4 exd4 axb5 Ba6 g4 Bc8 g5 h5 h3 g6 h4 Bh6 gxh6 g5 Ra4 g4 Ra1 Qg5 hxg5 Kf8 Bd2 Ke7 Bc1 Ke8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 Kd6 Ke4 c4 g3 c6 g2 c7 d3 f3+ Kd4 e4 a4 g6 d2 b6 Ke3 h7 Kf2 c5 a3 b7 a2 g7 Kg3 c6 Kf2 e5 Na6 b8Q Nc5 e6 Na6 e7 Nc5 e8N Ra3 Qe2+ Kg3 Qb4 d1R+ Qd4 Rdd3 Be3 Nf6 Ke7 d6 g8N Ra4 Nd2 Bf5 c8Q Rc3 c7 Rc1 Qb7 Be4 c8Q Nd3 Nc7 Nd5+ Ke8 N5f4 Rh4 Re1 Rd1 a1N Rg4+ Kh2 Qd8 Bf5 Ne4 Kh1 Qe7 Be6 Qf8 Bd5 Bf2 Rc4 Be3 Rc1 Nf2+ Kh2 Qa4 Be4 Ba7 Bd5 Qd4 Be4 Ne7 Rg8 h8Q Rg7 Ng8 Bd5 Qh7 Be4 Ngh3 g1R Rd2 Rg3 Ng1 Bd5 Bh3 Rg2 Rh4 R2g3 Bd7+ Kg2 Bf5 R3g4 Qc8 Ba8 Qb7 Ne5 Bb1 Ned3 Ra2 d5 Ra6 Rg3 Rg4 Kh2 Rgg6 Rg4 Rgd6 Kg2 Ra4 Kh2 Nfh3+ Kh1 Nf2+
R1B2Nk1/3N2Pb/BrR4p/1Q2Bp2/q3Qq2/1Q1QQ1bK/4brp1/4b1B1 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 d5 cxd5 f5 a4 g6 axb5 Nh6 g5 Nf7 Bh3 Nd7 Bf1 exf4 h4 Nf6 gxf6 g5 Nf3 g4 Ng1 Ng5 hxg5 Be6 Rh4 Bd7 Rh1 Bc8 Kf2 Kf7 Kg2 c5 d4 a5 b4 h6 e4 c4 g6+ Kg8 f7+ Kg7 e5 a4 e6 a3 e7 c3 e8B a2 b6 c2 b7 g3 b8Q f3+ Kh3 f2 d6 g2 d7 Qf6 d8Q Bb7 d5 Be7 b5 Rf8 d6 Be4 d7 Qb6 Na3 Bg5 Be3 c1B Nc4 Ra7 Qe7 Ra4 d8Q Bf6 Qb3 Bd5 Ne5 Bb7 Ne2 Rg8 f8Q+ Kh8 g7+ Kh7 Bd7 Ra6 Nf4 Qd4 b6 Bd5 b7 Bh4 Ne6 Bg3 Qfe8 Rb6 Ba6 f1B Bc8 Be2 Nd7 Qf4 Bg1 Bd2 Qa7 Bdc4 b8B Bde1 Be5 Rh8 Nef8+ Kg8 Rc1 a1Q Qeb4 Bd5 Rc6 Qa4 Qe4 Bdc4 Qb7 Bf7 Qb5 Bg6 Qee7 Bh7 Qa3 Qf1 Qg5 Qf3 Qge3 Qf4 Qad3 Kf7 Ne6 Re8 Nef8 Re6 Qbc4 Rb2 Qcb3 Kg8 Q7b5 Bh5 Bh2 Rf2 Rf1 Be2 Bg1 Bd2 Ra1 Be1 Bab7 Qd4 Ra8 Qa4 Qbb1 Rf6 Ba6 Rd6 Q1b3+ Re6 Rc4 Rb6 Rc6+
N2Q2R1/kp2N1nb/p4K2/RBB3pR/1N1R1N2/2Qp1n2/3P1b1q/2R1r2r b - - 0 1 legal: proof: b4 e5 g4 c5 bxc5 f5 f4 h5 gxh5 Qc7 fxe5 Qd6 e4 Qe6 exf5 Qxa2 Kf2 Kd8 Kf3 Kc7 Kg4 g5 c4 d5 h4 a6 h6 d4 h7 Bd6 c6 Kb6 c5+ Ka7 h5 Nd7 e6 Qb2 c7 Bg3 h6 Ne7 f6 Rf8 h8Q Rf7 c6 Qc2 h7 Rg7 f7 Qb3 f8R Qd3 Rh4 Nf5 e7 Bd6 e8N Bc5 Nh3 Bb6 Ra5 Rf7 Na3 Rb8 Qb3 Ne7 Qc3 Bc5 Nf4 Bb4 Nc2 Ng6 Ba3 Qe3 Bb5 d3 Rg8 Re7 Kf5 Bc5 Nb4 Nde5+ Kf6 Bf5 c8R Nf3 Nc7 Qg1 Na8 Nf8 c7 Bf2 Rh5 Qg2 Rd8 Qg3 c8R Ne6 Rd4 Qh2 Rg6 Bh4 Nbd5 Qe2 Re8 Rd7 Rhh6 Nc7 Rg7 Qf2 Re1 Ne6 Rc1 Re8 Bb4 Rde7 Rh5 Qh2 Qf8 Bf2 h8N Bh7 Rg8 Ng7 Nhg6 Re2 Bd6 R8e5 Nb4 Re7 Qd8 R7e4 Ne6 Rg4 Nef4 Rg1 Ne7 Ree1 Rd1 Rgf1 Rc1 Rh1 Bc5+
1B1QK3/n1B3QQ/pB2pP2/bB1Rb1N1/3b2k1/Q2Qpq2/5p1r/1Rr1N3 b - - 0 1 illegal: No proof kernel
k2KBn2/1Nr2R2/5BP1/3Nn3/NrRNQ3/p1R1pr2/1Qp1p1b1/R2bN3 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 g5 a4 b5 axb5 g4 f4 Bh6 c4 Kf7 f6 Qd6 f5 Qd5 cxd5 Bg5 hxg5 Ke8 Ke2 Kd8 Ke3 c5 Kf4 Kc7 Ke5 Kb7 b4 a5 d4 h5 b6 h4 d6 h3 b5 e3 g6 e2 d5 g3 d7 h2 Ke6 g2 d6 a4 f7 c4 f8R a3 f6 Rh4 f7 Rd4 Nf3 g1R Qc2 Rdg4 Bg5 Ra7 Nc3 Ra8 Nd5 R1g3 Re8 Rh4 f8R Rgh3 Rf7 Rh8 Bf6 Rg3 Bh3 Rh4 Rhc1 h1B Ne1 Ra6 Qd3 Ka8 b7+ Ka7 Bf5 Ra4 b6+ Ka6 Qe3 c3 Bd3+ Ka5 Bb5 Nh6 Rh8 Rf3 Rg8 Na6 b8N Bg2 b7 Rhc4 Re8 Rc7 Qf4 Nb4 Na6 Nc2 b8Q Ng4 Nc5 Ba6 Bc6 Bd3 Qb2 Rb4 Na4 Ka6 d8N Ka7 d7 Bc4 Bb5 Bb3 Nc6+ Kb7 d8N+ Ka8 Kf5 e5 Ke6 e4 Nb7+ Rc8 Kd7 e3 Re4 Ne5+ Ke7 Rc7+ Kd8 Nd4 Qg4 Bd1 Rc2 Nb3 Rc4 Nc5 Qe4 Ncd7 Nd4 Nf8 Be8 Rb6 Rd2 c2 Rd3 Rb4 Rdc3
3QBNQ1/1p1rQ2p/6N1/5Q1q/r1p1Bp1P/2k3N1/1N1q1RR1/QKbn1q2 b - - 0 1 legal: proof: d4 e5 b4 g5 f4 a5 bxa5 d5 e4 Bg4 exd5 e4 c4 Bf3 d6 Bg4 d7+ Ke7 d5 Nc6 Be3 Ne5 fxe5 Be2 Bf4 gxf4 Qd3 Bd1 Qd4 Bb3 d6+ Ke6 Qd3 Kf5 Qf3 Kg6 Qd1 Ba4 Qd2 Bc6 Qd1 Bd5 cxd5 Bg7 Ba6 Bh6 Bf1 Bf8 Kd2 Kf5 Kc1 c5 h4 f6 a4 c4 g4+ Kg6 e6 f3 a6 f5 a7 Kf6 e7 Ke5 e8B e3 g5 f4 g6 e2 g7 e1Q a5 f2 a6 Nf6 g8N Ne4 Rh2 Qea5 Ne7 Qc3+ Qc2 Kd4 Ne2+ Kc5 Ng6 Kb4 Ng3 Qe7 d8N Bh6 d7 Nd6 Rg2 Rg8 Ne6 Ne4 d8Q Qf7 d6 Qd3 d7 Bf8 Qe7+ Qd6 d8Q Qg7 Ra2 Nc3 Bd3 Qc5 Be4 Nd1 Nc3 f1Q Na4 Qc3 Nb2 Rh8 Kb1 Qd2 Qcd3 Bg7 Nef8 Bf6 Q3d5 Kc3 Qf5 Rg8 Rf2 Rg7 Rg2 Bd4 Rf2 Be3 Rg2 Rc8 a8Q Rc6 a7 Ra6 Qac8 Ra4 a8Q Qcd5 Qce6 Qa5 Qg8 Rf7 Qed6 Rd7 Q6e7 Qb5 Qfe6 Qg5 Qf5 Qh5 Qfg5 Qde2 Nd3 Bc1 Qf5 Ra5 Qa6 Qe3 Raf2 Qd2 Nb2 Ra2 Qab5 Ra5 Qa4 Ra8 Qa2 Ra4 Qa1
2B2QKR/R5bn/r1R1k1N1/P4R1n/3n1Q1Q/q1nrb2r/1N1Qb1R1/4Bn2 b - - 0 1 illegal: No possible last move
2bQnk1n/5N2/1Nq1r3/NQR1bq1q/2Br3N/R1B3P1/3Rq3/K1Nq1nR1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 h5 d4 e5 Kd2 c5 Kc3 a5 Kb2 c4 f4 a4 f6 e4 d6 e3 d7+ Kf7 f5 e2 b6 e1Q g3 h3 d5 h2 d6 h4 b5 h3 b7 Qe3 b6 Qf4 Ra3 c3+ Ka1 c2 Ne2 Qe7 d8R Nc6 b8N Rh6 b7 Ne5 d7 Bg7 Nc6 Ng6 b8Q Nh8 Rg1 h1Q Qb5 h2 Na5 Qc6 Nd2 h1Q Bb2 c1N Bc3 Qh5 Ndc4 Qfg4 Nb6 Nb3+ Kb1 Qe3 Nc1 Nd2+ Ka1 Qgf4 Bd3 Nf1 Qd2 Qe8 Bc4+ Kf8 f7 Re6 Qd4 Nf6 Qdd5 Ke7 f8R Qe2 Qd3 Q8h5 Rg8 Ne8 f6+ Kf7 Qdd5 Qff5 Qd2 Bf8 Rg5 Bg7 Qdd5 Kg8 f7+ Kf8 Qd3 Be5 Qdd5 Ke7 f8N Kf7 Ng6 Kg8 Ra2 a3 Nh4+ Kf8 Rd2 a2 Qd3 Ra6 Qd4 Bb7 Ra8 Bc8 d8N Ra7 Nf7 Rd7 Nb7 Rdd6 Ra3 Rd5 Qd3 Rd4 Na5 Rg4 Qd8 Rd4 Kb2 a1Q+ Kb3 Qff2 Na2 Bf4 Rc5 Qad1+ Kb2 Be5 Nc1 Qff5 Ka1
1rN2B1B/4Q1Q1/1N2P1n1/Rqb2B2/1B2r1br/2qRbN1b/3b3n/NK1B2k1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 Kc2 c5 g4 f5 b4 h5 e5+ Kd7 d6 Ke6 d5+ Kd7 b6 h4 g6 a4 b5 h3 g7 a3 b7 f3 b6 c4 g5 f2 g6 c3 Bb2 a2 Nd2 f4 Nb3 h2 Be2 f1Q Qd4 f3 Bd1 f2 Nf3 Nc6 b8B Nge7 g8N Qc7 g7 Rh4 b7 Ng6 Ne7 Qb5 g8B f1B Bh7 Bh3 Rg1 h1R Rg3 Re4 Qa7 Ke8 d7+ Kf7 d8B Bcg4 e6+ Kf6 d6 Nce5 Nc8+ Kf5 d7 Bc5 Be7 Kf4 d8Q Ke3 Bf8 Kf2 Qe7 Kf1 Kc1 c2 Bd4 Qca5 Bd6 Qc3 b8N Rh2 Nd7 Rb8 Ndb6 Rh1 Ng1 Nf3 Bh8 Nh2 Rd3 Kg2 Nf3 Kf1 Rb1 a1B Rb2 Kg2 Ra2 Kf2 Ra5 Kf1 Ne5 Kg1 Qab7 Qcc4 Qa7 Bc3 Na1 B3b4 Kb2 c1B+ Kb1 Qc3 Qg7 B5e3 Qae7 Bcd2 Bc5 Nf4 Bf5 Ng6 Bd6 Bbc5+ Bb3 Bcd4 Bb4 Bc5 Bd1 Nf3 Nd6 Bf1 Nbc4 Rh4 Nb6 Bfh3 Ndc8 Nh2 Nf3+
b1q3Qb/r2qnP1Q/Q1qN1b1n/B2BQ1R1/4b1BB/3N2QK/1R6/1r1k3b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 Kb4 d4 a5 g5 e5 d6 c5 b6 h5 f6 e4 d7 e3 b7 c4 g6 a4 f7 c3 g7 a3 d5 a2 f5 e2 f6 e1Q d6 c2 Nf3 Kb3 Nc3 Na6 b8Q+ Nb4 Ne4 Qe3 Rh2 Qe7 d8Q Qc7 d7 Ba6 Kh3 Ra7 Be2 Qec3 Qf1 Q3c5 Ne5 Be7 f8Q Bb7 Bd2 c1Q Nd6 Kc2 Nd3 Q5c6 Bg4 Nh6 g8B Nd5 b4 Ba8 b5 Q7b7 Rb1 a1B b6 Qd1 Qfe8 Qbc8 Qdc7 Bd8 b7 Ne7 Bd5 Bd4 Kg2 h3+ Kg3 Bb2 Rg2 h2 Qg8 h1B Kh3 h4 Ba5+ Qd2 Rg1 Be4 f7 Bg7 Qh7 Re8 Qf6 Bh8 Qb6 Rg8 Qa6 Rg6 Qf4 Rf6 Qh2 Rf1 Qg3 Rd1 Rb6 Rb1 Qc7 Qd1 b8Q Qd2 Rf1 Qd1 Rf5 Qd2 Rg5 Qd1 Kh2 h3 Qe5 Qd2+ Kg3 h2 Kh3 h1B Rb5 Qe2 Rb2+ Kd1 Qg3 Ng6 Qe5 Bdf6 d8B Ne7 Qg3 Q6d7 Qc3 Qcc6 Qce5 Qf3 Be1 Qcc8 Bda5 Qcb7 Qf8 Qbc8 Qfg8 Qe2 Qh4 Bb7 Bge6 Ba8 Qf2 Qec2 Bg4+ Bef3 Qfe3 Qca4 Bh4 Qac6 Bf5 Be4 Q3g3 Q6c7 Bfe6 Qcc6 Bg4+
2r2B2/2P3r1/Rn2rN2/n1NN3q/1KNk1B2/r1rbQ3/q2N1bB1/2q1BQ1R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 f4 d5 b4 e5 h4 a5 c5 g5 h6 d3 Kc3 d2 b6 a4 h7 e4 h5 e3 b7 e2 h6 e1Q c6 g4 c7 a3 b5 a2 b6 g3 Nh3 g2 Qb3 g1R Bg2 d1R+ Nd2 Nd7 b8N Qee8 b7 Rde1 Na6 Ba3 b8N Qh5 Nc5 d4+ Kc4 Re2 Qe3 d3 Kb3 Bb2 Kb4 Nb6 Nc6 Ne7 Ne5 Qg8 Nec4 Be6 Nf2 Rc8 Ng4+ Kf7 f6 Bd4 f5 Nc6+ Ka3 Na5 Kb4 Ke8 f7+ Ke7 f8N Kf7 f6 Bf5 Nfe6 Ree1 Qg3 Bf2 Nf4 Re6 Nd5 Kg6 f7 Be4 f8B Kf5 Nb1 d2 Qe3 d1Q Ngf6 Bd3 Bd2 Qc1 Be1 Qgf7 Nbd2 Rg8 h8Q Rg3 h7 Rf3 Bf1 Rg7 Bg2 Rh3 Qg8 Rhg3 h8B Rf3 Rb1 a1R Rb2 Ra3 Ra2 Rh7 Qg3 Rg7 Qh3+ Rg4 Ne8 Nb7 Qh2 Ree4 Qh6 Ra7 Nc3 Bc2 Be5 Rg7 Nf6 Qd5 Bed6 Re6 Na5 Raa8 Ra4 Qa2 Ncd5 Rc3 Qe3 Bd3 Qg1 Ra7 Bf4 Raa8 Qf1 Ra7 Bg5 Raa8 Qf3+ Ke5 Bf4+ Kd4 Nac4 Ra7 Ra5 Ra6 Rb5 Raa3 Ra5 Qf5 Qh3 Qh5 Ra6 Na5 Qe3+
1QKbnkqN/1Q5B/nBBr2N1/1r1bn3/5R2/BQBb1R2/4q2P/1Q3n1q b - - 0 1 illegal: No possible last move
8/6R1/RNRRB3/Qn3Nr1/1rbbn2b/bk1r1n1K/5QPR/B1B1B1qq b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 Kf2 Kd6 d4 e5 b4 h5 b6 c5 b5 a5 b7 a4 b6 e4 f6 c4 f5 a3 f7 h3 Kg3 a2 f6 h2 Qf3 c3 Ne2 c2 Na3 e3 Qf2 Na6 b8R Nc7 b7 Be7 f8R Ra5 f7 Be6 Rc8 Nf6 Rg8 Nb5 f8B Qb6 Rg7 Rg8 Rc7 Ra4 b8B Rb4 Ba7 Bf7 Kh3 h4 Ng3 Ne4 Bc4 e2 Bb3 e1N Rc6+ Kd7 d6 Nf3 Bb8 Bc4 Nf5 Ke6 d7+ Kd5 Be5 Bf6 Bfd6 Bg5 d8R Bf6 Bd2 c1B Be1 Qc5 Bf4 Bb2 Bc1 Qa7 Rb1 a1B Ra8 Qc5 Be5 Rd8 Raa6 Qb6 Kg4 h3 Ba2 Bh4 Bf6 Bb3 Nc4 Ba3 Rb2 Qa7 Rd2 Rd7 Ne5 Rd8 Nd7 Qc5 Be5 Kc4 d5 Bd4 d6 Kc3 Bf6 Bc4 Nb6 Rg8 d7 Rd8 Rg1 h1Q Be5 Rg8 d8Q h2 Qc7 Rd8 Kh3 Rd6 Qa7 Rg6 Qc7 Rg5 Qa7 Be2 Be6 Bc4 Rf1 Kb3 Qa8 Bc3 Qd8 Qe3 Rdd6 Bd4 Qd2 Qeg1 Qf2 Bc5 B5c3 Bd4 Ba1 Nfd2 Qg3+ Qe3 Rf2 Qf1 Nd5 Bc3 Qa5 Qd4 Nb6 h1R+ Qh2 Rg1 Qg3 Nf3 Bed2 Qe3 Re2 Bd4 Bdc3 Qd1 Re1 Rf1 B3d2 Rf2 Bdc3 Rd2 Rh1 Rd3 Rh2 Qh1 Be1 Qeg1 Qf2
bq1r1B2/r3k1Qn/Rq1b1NR1/6RN/Qb3bq1/nB1K4/RP4R1/3n1QQ1 b - - 0 1 illegal: No possible last move, all moves rejected
1rqN3b/2nb2R1/N1b1b1B1/Q3NrR1/q1n3rk/2NnB3/QP4RR/6NK b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 f4 Kf6 Kf2 c5 Kg2 h5 d4 a5 b6 e5 d6 e4 d7 h3+ Kh2 c4 b7 c3 d5 c2 d6 h4 Ra4 e3 Ra1 e2 Be3 e1N Bd3 c1R Qa4 Nc6 b8N Ne5 Na6 Rb8 Qb3 Qc7 d8Q+ Ne7 d7 a4 Nc3 a3 Qg8 Qc6 Qa5 a2 d8N Bd7 Qb3 Rg8 g5+ Kg7 g6 Kh6 g7 Kh5 f6 Nd5 f7 Qc8 f5 Nc7 Qba3 Nc4 f6+ Bc5 Bf5 Bd4 f8N Nd3 f7 Rf1 Ng6 Rf3 Rc1 a1Q f8R Rf4 Qb3 Qa4 Rf7 Rf8 g8R Bh8 Rc2 Re4 Nge2 Rd4 Kg1 h2+ Kg2 Re4 Nef4+ Kg5 Rg1 h1B+ Kh2+ Bg2 Qa2 h3 Ne5+ Kh4 Rg5 Bf3 Re7 Bg4 Bg6 Bge6 Rg7 Rf5 R1g3 Rd4 Kg1 h2+ Kh1 Re4 Nh3 Rd4 Kg2 h1B+ Kg1 Qb7 Rh2 Bhc6 Rgg2 Rg4 Kh1 Qc8 Ng1#
1q1B2n1/r1N2QKN/3B1R1B/n7/k6N/3q1B1Q/1PrbNqbb/qn1R3B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 e5 Ke4 c5 f4 a5 g4 h5 d4 a4 b6 a3 b7 h3 d6 Kc6 g5 h2 f6 a2 f5 c4 g6 Kb5 d7 h4 f7 h3 d5 Rh4+ Qg4 Rh8 d6 Ka4 f6 c3 Kf5+ e4 g7 c2 Kg6 Qb6 d8N Ra7 d7 Qf2 Ne2 Nc6 b8B Bb7 Bd6 Na5 Bh6 c1N Nd2 Ncb3 Rd1 a1Q Nf3 Nd2 Ne6 Nb1 d8B Bc6 Qf5 e3 Nh4 Bg2 Nc7 Be7 Rg1 h1Q f8N h2 f7 Bg5 Qf3 Bf4 Qh3 Qa3 Nh7 Qd3+ Kh5 Be5 f8Q Bg3 Qf7 Be5 Nf4 e2 Kg5 e1B Be2 Bd2 Rgf1 Qhg1 Bf3 h1Q Kh5 Qb6 Ne2 Bh2 Rf2 Qb8 Rff1 Qa3 Kg6 Qge3 Rf2 Qg1 Rff1 Qa1 Rf2 Ne7+ Kf6 Qd3 g8B Qf1 Kg7 Qe1 Qg6 Qf1 Bgd5 Ng8 Qf7 Qe1 Bh5 Qg1 Rf6 Qf1 Ng5 Qf2 Bhf3 Rh7+ Kf8 Rg7 Nh7 Rg5 Bb7 Rc5 Kg7 Rc2 Bbd5 Bf1 Bh1 Bg2 Bf3
2RN1R2/Q2B1QqN/nrbB2R1/3qn1r1/8/1qb1BPb1/qr1Bk3/1B4KR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Rh2 Kf7 g4 Kf6 b4 Kg5 f3 Kf4 Kf2 c5 f6 h5 f7 a5 b6 e5 b7 h3 d6 h4 g5 a4 g6 c4 g7 a3 b5 a2 b6 c3 d7 c2 Bd3 e4 Nc3 Rh6 Nb5 Nf6 g8B Bg7 f8R Ra5 Nd6 Na6 b8B Bb7 Rg2 h2 Be6 h1Q Nf7+ Qc7 d8Q h3 Qd4 h2 Ba7 Nd7 Qc5 Rf6 Rg6 e3+ Kf1 Ba8 b7 e2+ Kf2 e1R b8B Re2+ Kf1 Bb7 Bdf5 Rb5 d4+ Rd2 Rb1 a1Q d5 Qa2 d6 Ba8 Bd3 Rf5 Qe2 Bc3 Qef2 Re5 Qd5 Bc6 Bh3 Rf5 Bd4 Ne5 d7 Rh5 d8R Qe7 Bd6 Rb4 Bb2 c1B Rc8 Rf5 Nd8 Qg7 Qg8 Qd5 Qf7 Qg2+ Ke1 h1Q Bb6 Rf6 Bd7 Rf5 Ra1 Qgh2 Kf1 Rc2 Ba7 B1d2 Bb6 Be1 Bc1+ Rd2 Ba7 Rb5 Qb6 Bg3 Qb8 Rb7 Bb6 Qb3 Qa7 Rb8 Bf2 Rb6 Be1 Ke3 Rb1 Qhh6 Bc2 Q1h2 Nh3 Qf4 Ng5 Qd4 Nh7 Rg5 Bcf5 Qe4 Bf2+ Kd3 Be3 Ra2 Ra1 Qhb2 Bcd2 Qb1+ Kg2 Rb2 Nf6 Ke2 Nh7 Q1a2 Rh1 Qec4 Kg1 Qd5 Bb1
QQ4R1/Kn3b1B/1Q1q4/8/1Qn1P1N1/BQbbB1r1/1nbrR1qB/3kr2N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 Kd6 d4 g5 b4 c5 h4 f5 b6 a5 b7 c4 h6 g4 h5 f3 Ke3 f2 b5 a4 h7 c3 h6 a3 b6 g3 Bh3 f1B Qb3 a2 Na3 c2 Ne2 g2 Rg1 Nf6 Ng3 Rg8 h8B Nbd7 h7 Nc5 Nh1 Bg7 b8B+ Qc7 b7 Be6 Qb5 Ra7 Qb3 Nfd7 Bb2 c1N Nc2 N1d3 Re1 a1R Bc1 Ke7 d6+ Kf6 d5 f4+ Kd4 f3 Bf5 f2 Ne3 N7e5 d7 Kg5 d8Q+ Kf4 d6 Kf3 d7 R7a2 Ba3 Rd2 Qe7 Qc6 d8Q Nc4+ Be5 Rc1 Qa8 Bf7 Qd6 Qa6 b8Q Nb7 Qbd8 Be2 Qdb4 f1B Qda5 Bf6 Bg7 Ra1 h8Q Bd1 Bh6 Bc2 Bh7 Rg7 Qhb8 Qd6+ Nd5 Rg6 Be3 Bh8 Q5a6 Rg7 Bh2 Ndb2+ Kc3 Bfd3 Nf6 Rg8 Qaa5 Bg7 Qbb6 Rc1 Qac5 Bh8 Kb4 Rg7 Kb5 Rg5 Nh5 Bc3 Ka6 Rg8 Ka7 Rg7 Ref1+ Ke2 Qcb4 Re1 Nf6 Kd1 Rf2 Rg4 Re2 Rg5 Rf1 g1Q Rf5 Rg2 Rg5 Rg3 Rg8 Qg2 Ng4
BK1RR3/1NR2nq1/Nbr2k2/3bBnR1/P5Q1/1r1rq3/n1B1b2R/2bB2Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 c4 d6 h4 Kd5 c3 d7 h3 f6 b4 f5 e4 Rh2 b2 Nf3 e3 Ne1 b3 Na3 b1R Bd3 b2 Nc4 c2 Na5 e2 Bf4 c1Q Be5 Qcc7 Bc2 Ra7 Nb7 Rh4 Nd3 e1B Nb4 Bg3 Na6 Ba3 g6+ Kf8 g5 Qb6 g7+ Kf7 Qg4 Qe8 d8Q Rf1 Rc1 b1N Qc7+ Bd7 Qc5 Qb2 Kd6 Nc3 Kc7 Rh6 d5 Nc6 d6 Rd1 Qg1 Nd8 Kb8 Bb5 d7 Rd3 Bd1 Na2 Rc7 Ne7 g8B+ Kf8 f7 Bf2 g6 Bb6 Bh7 Bc4 Bg3 Kg7 f8R Nf7+ d8R Kf6 g7 Rb3 g8B Be2 Bf4 Qa1 Bg6 Bc1 B8h7 Qd4 Rg8 Qf8 Bh5 Qe3 Rg5 Qg7 Bg3 Nh8 Be8 Nf7 Bc6 Rd3 Nd6 Rg6 Ba8 Rb3 Nb7 Rd3 Rf2 h2 Bd6 h1B Rh2 Bd5 Re8 Nh6 Be5+ Kf7 f6 Rb3 Rd8 Be4 Na5 B4f3 Rc2 Rd7 Nb7 Rd4 Rc7 Bd5 Q4g2 Ke6 f7 Rd2 f8R Nf7 Rh3 Rf6 Bhc2 Nf5 Rh2 Rdd3 Qg4 Rh6 Rc3 Ke7 Rcc8 Rc6 Rc7+ Ke6 Bg3 Kf6 Rfe8 Bdf3 Bd6 Bd5 Be5+
2b1RKn1/1nqB1Rn1/NQ4kB/B3qRP1/B2RN3/2n1r3/bR1r4/1Q2br2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 Kf3 h5 Ke4 f5+ Ke5 Kf7 g4 a5 d4 a4 e4 f3 b4 c4 b6 a3 d6 f2 b5 c3 d5 h4 g6+ Kg7 d7 a2 Ke6 c2 d6 f4 b7 f3 b6 h3 e5 h2 Nd2 Rh6 Nb3 Rh5 Bh6+ Kh8 Kf7 c1R g7+ Kh7 g5 Ne7 g8R Ra6 e6 Nbc6 b8Q Rh3 b7 Qc7 d8B Na5 d7 Rd6 Bb5 f1B Ba4 f2 Nf3 Rd2 Nc5 Bc4 Rf1 h1N Na6 Ng3 Qe1 Bg7 Re8 Bc3 Kf8 Ng8 e7 Nh5 Rb1 a1Q Rb5 Qb2 Rf5 Ba2 Qe3 Ng7 Qb6 Qa1 Qb1 Kg6 Rf7+ Rd3 Nd2 Re3 Ne4 Rd2 Qa7 Bb4 b8R Qae5 Rf5 Bc3 Rb2 Nb7 Rf7 Qcd6 Bb6 Qc7 d8R Ba5 Rd4 Bb4 Rg1 f1N Ba5 Ng3 Rgf1 Ne2 R1f5 Rf1 Bd7 Rc2 Ba4 Be1 Qc5 Nc3 Qb6+ Qf6 Red8 Rcf2 e8B Rd2 Bed7 Qe6 Re8 Qf6 Nd6 Qe5 Ne4+
Bq6/bBBbRNkq/Nr3n2/1bn1QRP1/R6b/1BQ2K2/qn2B3/4r2R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 a5 g4 f5 c4 Kf7 e4 d5 b4 h5 e6+ Kg7 e7 a4 e8R d3 g6 a3 b6 d2 c5 f4 b7 f3 e5 h4 e6 a2 c6 d4 e7 d3 g5 h3 c7 h2 b5 Na6 b8R Ra7 b6 Bf5 c8B Be6 b7 Qd6 Na3 Rh6 Qb3 d1Q Bf4 d2 Nb5 Bd7 Nc7 Nc5 Qc3+ Nf6 Be2 Qc2 Na6 d1N+ Kg3 f2 Nf3 f1B Ne5 Ra8 Nf7 Nb2 Kf3 Ra7 Ra8 Qb8 Bc7 Qd2 Rc1 a1B Rd1 Qc2 Rd5 Qb1 Rf5 Qa2 Nb4 Ra4 Na6 Rd4 Ra7 Rd1 Ra8 Re1 Ra7 Kg8 g7 Kh7 g8B+ Kg7 Nd6 Rg6 Bb3 Rh6 Nf7 Rg6 Bed1 Bfb5 Be2 Rh6 Rd8 Rg6 e8B Bd6 Ra8 Bg3 Ra7 Be6 Bc6 Bh4 Rd4 Bd7 Ra4 Nc4 Qa5 Bd4 Qc3 Nb2 Bcd5 Ng8 Be4 Rb6 Bed5 Nf6 Bc6 Qa8 b8Q Bg1 B8b7 Be3 Qe8 Qb8 Ba8 Bef2 Bcb7 Be3 Rf1 Bd4 Qe5 h1Q+ Kf4 Qh3 Rg1 Qd3 Rh1 Qdb1 Kf3 Bg1 Rff4 Qh7 Rf5 Bdc6+ Qd5 Nd7 Bc8 Rb7 Bd8 Bb6 Qe4 Nc5 Qd5 Re7 Rc7 Ba7 Bcb7 Re6 Re7 Bd7 Bc7 Rb6 Qde5
1qbr1B2/8/nNQBBRK1/1Nn1NP1B/6nk/N2Nr2b/2rQ2qb/4b1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 g4 h5 d4+ Kf6 f4 a5 b4 e5 g5+ Ke7 b6 c5 b5 c4 g6 Kf6 d6 h3 g7 h2 d5 a4 b7 h4 d7 a3 b6 a2 d6 c3 Qf3 h3 Be2 c2 Ba3 Qe7 d8Q c1B d7 Ra6 Bd6 Be3 Na3 Nh6 g8B Bf2 Be6 Ng4 Rf1 a1N Qc3 Bh6 Nf3 Nb3 Nd4 Be1 Rhg1 h1Q+ Bf3 h2 Qc6 Ra7 Ndb5 Na6 b8N Qg2 b7 h1B Qa5 Bg7 d8N Qc7 Nf7 Rd8 Qd2 Bh6 Rf2 Bg5 Rff1 Bgh4 Rf2 Bg3 Rff1 Bh2 Nd7+ Kg7 f6+ Kg6 b8N Kh5 Kf5 e4 Nfe5 e3 f7 e2 f8B Nbc5 Nb6 Kh4 N8d7 Qb8 Kg6 Rc7 f5 Qh3 Nd3 Bg2 N7e5 Qg3 Qc3 Bh3 Qd2 Qg2 Rh1 Beg3 Rb1 e1R Rg1 Re3 Rb4 Be1 Ra4 Nb4 Ra7 Nba6 Be2 Rh7 Rf7 Rh8 Bd1 Rh7 Rf6 Rc7 Bf3 Nf2+ Bg4 Nb7 Qd7 Rc2 Qc6 Nbc5 Rf1 Qh1 Bh5 Ng4 Rg1 Qd5 Qe2 Qg2 Qd2
K1B1RR1q/RRbb1Bqq/b1N4r/PB1bk3/5RQB/6r1/2QN1nr1/1n6 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 c5 Ke4 b5 g4 e5 d4 h5 a4 c4 f4 h4 g6+ Kf6 g5+ Ke7 g7 Kd6 f6 c3 f7 h3 f5 c2 f6 b3 g6 h2 Ne2 b4 Bg5 c1Q Nec3 b2 Bh4 b3 Qg4 Ne7 g8B Qg5 g7 Nd7 Bd3 Kc7 d6+ Kc6 Rd1 Rh6 d5+ Kc5 Rf1 h1B+ Rf3 Bg2 Bh7 Ra6 g8B Qg7 Bf5 Rb6 a5 Ba6 Ra4 Qb8 Rb4 Rc6 Be2 Rc7 Nd2 b1B+ Bd3 b2 Nc4 Nb6 d7 Na4 d8Q Nc6 Qc8 Bd6 Nd2 Re7 Qc7 Bc2 Be6 b1Q Bf5 Qbf8 Bc8 Qh8 Rb8 Qfg7 Ra8 Bd1 Ra7 Bc2 f8R Re6 f7 Bh1 Rd8 Reg6 Qh5 Rg3 f8R Bb3 Bf7 Bg2 Nf1 Bh3 Rde8 Qc2 Qg6 Ba2 Qd7 Nb4 Rf4 Bc7 d6 Rg2 Nd5 Nc3+ Ke3 e4 Ne7 Nb1 Nd2 Bg4 Bb5 Nd3 Qde6 Nf2 d7 Bd5 d8R Bb6 Rd6 Bc7 Rb6 Bh3 Rb8 Bf5 Qh7 Bh3 Qeg6 Bd7 Qg4 Kd6 Qhf5 Rf6 Kd4 e3 Qd3 e2 Qb3 Qch7 Qc2 B5c6 Kc4 Ke5 Kc5 Bd5 Rb6 Rh6 Rb8 e1R Rb6 Rg3 Rb8 Bd6+ Kb6 Ba3+ Kc7 Reg1 Rbb7 R1g2 Kb8 Bd6+ Ka8 Bc7 Nc6+
1NrbB2B/6PB/qb1K1R2/rR1N3q/b5QB/n2k2R1/4b1QR/n2n1qB1 b - - 0 1 illegal: No possible last move
R6r/7k/1Bq1n3/R2B1bnn/3R1RN1/n1b2r1P/Q1BQ3B/nB1NKbn1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 b4 f5 d4 Kf7 e4 Kg6 h3 c5 e6 a5 d6 g3 b6 f4 b7 c4 d5 g2 b5 a4 d7 c3 b6 a3 e5 a2 e7 f3 e8B+ Kh7 e6 g5 e7 g4 d6 g3 Bc4 c2 Qe2 Ra7 Nc3 Ra8 Nd1 Nf6 Be3 c1N Bd5 Na6 b8B Nh5 b7 Qc7 d8R Nb3 d7 Bg7 Bb6 Nbc5 Qc4 Qc6 Bg6+ Kh6 e8B Nc7 Bc2 Ra3 Bef7 N5e6 Bfg6 Nb5 Bd6 Rd3 b8R Na3 Ra8 Rc3 Qe2 Rd3 Rf8 Bc3+ Qd2+ Kg7 d8Q Bd7 Rf4 f2+ Ke2 f1B+ Ke1 Bc8 Nf3 g1N Nh2 g2 Ng4 Rf3 Rd4 Bd7 Bh2 Bc8 Qh4 Kg8 Qf2 Kg7 Rb1 a1N Rb5 Bd7 Bb1 Bc8 Bgc2 Bd7 Rd3 Kh7 Rba5 Nc5 Ra4 Bf5 Rdd4 Ne6 Qe2 Re3 R4a5 Nf3+ Kf2 Nfg5 Ke1 Rf3 Qf2 Bb5 Rf1 g1N Qe2 Ba6 Qc4 Bb5 Rf2 Ba6 Qb3 Bf1 Qa2 Rg3 Rff4 Rd3 Rb5 Rf3 Rba5
1B2NbKb/k6Q/3NQ1R1/2n1bb1B/1B2qBB1/nPb4r/1r5N/bRN3n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 f5 Kf4 c5 e4 Kc7 h4 Kb7 d4 a5 h5 g3 e6 g5+ Ke5 c4 d6 g2 h6 c3 d7 a4 b3 a3 h7 f4 d5 g4 b6 f3 d6 c2 e7 a2 Ke6 f2 Kf7 g3 e8B Na6 e5 Nc7 e6 Ra7 e7 Nf6 Nf3 g1B Nh2 g2 Nc3 Ne4 Bf4 c1B Rb1 a1B Qg4 Nb5 Qe6 Bd2 Na2 Na3 Be2 f1N Nc1 Nfg3 Bg4 Bgd4 Rg1 Ka6 b7 B2c3 b8B Nc5 Nf3 Qa5 d8N Ne2 Nb7 Be5 Nh2 Qa4 d7+ Qc6 Nd6 Qe4 d8B Ra8 Qg6 Bf5 Ba5 Ra7 Bb4 Kb6 Rf1 g1B Qe6 Bgd4 Rg1 Ra5 Rg3 Ng1 Rg2 Nc4 Rg3 Ra2 Rg2 Na3 Rg3 Rg8 h8Q Rb2 Qh7 Rg6 Rg2 Rh6 Kg8 Rh3 Beh5 Bh8 e8N Bde5 Bf3 Ka6 Rg6 Kb6 Bfg4 Ka6 Bc7 Ka7 Bb8+
B3b1k1/2K1bBBr/2Q3N1/R1Q1Nq2/1Pr1Br2/2n1R2r/Q3b1B1/1r1rQn2 b - - 0 1 illegal: No possible last move, all moves rejected
1BK2N2/2N1P1rb/rN1Q4/bB2QN2/rq3r1n/2N1RR2/3rQ1q1/2k1Qnr1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 g5 h4 a5 b6 f5 d6 c4 d7 a4 Ke6 f3 e5 c3 h6 f4 d5 f2 h5 a3 h7 a2 d6 g4 h6 f3 b7 g3 Bb5 f1Q Qe2 Kb3 Bf4 g2 Rh3 c2 Nc3 f2 Rf3 Ne7 Re1 Na6 b8Q Rg8 h8N c1R h7 a1R Ng6 Qc7 h8Q Ra2 Qh1 Bb7 d8N Bc6 d7 Qb7 Bg3 Bg7 Nf8 Ra4 Kd6 Bd5 e6 Ng6 e7 Nb4 Nde6 Nh4 d8Q Rc2 Nc7 Rd2 Kd7 Kc2 b3 Qb6 Kc8 Be4 Qd6 Nd5 b4 R8a6 Qe5 Qc5 Qb6 Bh6 Qbd6 Ne3 Qed3+ Kb2 Qf4 Rg4 Qd8 Qd6 Na8 Qd4 Na2 Rc2+ Bc6 R6a5 b5 Qc3 b6 Nd5 b7 Qg7 b8N Qe2 Nb6 f1R Na6 Bh7 Rf2 Ne3 Nf3 Qc3 Nd4 Rg7 Nf5 Bg5 Qd2 Bf6 Qh2 g1R Qb4+ Qb3 Bb8 Bc3 Nc7 Ra6 Q8d6 Qg4 Bb5 Qg2 Qg4 Ba5 Nc3 Qb4 Qdd1 Re2 Qhe5 Rd2 Rf4 Rff2 Qg3 Nf1 Re3 Rf3 Qe2 Kc1 Qgf2 Rfg3 Rff3 R3g4 Qfg3 Rf4 Qge1+
4q1nn/Qb2Rr1R/N2r4/1B1kBrB1/2b2bNn/4Q1rb/B1N1PK2/1B5N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g3 Kd7 d4 Kd6 b4 f5 b6 h5 b7 c5 b5 a5 b6 f3 Bb2 h4 Nh3 a4 Qc1 a3 Bg2 f4 Nf2 a2 Na3 Nd7 b8N c4 b7 h3 g4 c3 Kf1 Nh6 g6 c2 g7 h2 g8B Ra5 g5 Ne5 g6 Be6 g7 Qe8 Bh7 Ng6 g8B Rc5 Rb1 a1N Na6 Nb3 b8Q+ Rc7 Bf7 Ng8 Qa7 Bh6 Bh3 Rc6 Qe3 Bg5 Rd1 c1R Ke1 Rc7 Bf5 Rb7 Bd3 Nd2 Bb5 Rc6 Qd3 Ke7 d6+ Kd7 d5 Rc7 Rg1 h1B Qde3 Bh6 Rc1 Bg2 Nh1 f2+ Kd1 f1B Ke1 f3 Rc3 N6e7 Bb1 Ng6 Rc4 Bg5 Nc2 Rh3 Rh4 Nh8 Rh7 Bh6 Nf2 Bh1 Rgg7 Rg3 Bd4 Bhg2 Nh1 Bgh3 Ba1 Bfg2 Bf6 Nc4 Bb2 Ne5 Bc3 Neg6 Bb2 Kd8 d7 Ke7 d8N Rd6 Nc6+ Kd7 Ba1 Nh4 Ne5+ Ke7 Ng4 f2+ Kd2 f1R Be5 Rf5 Ke1 Bf4 Kf2 Rc6 d6+ Kd7 Bc4 Rb6 Bd3 Kc6 d7 Bgd5 d8B Bc8 Qd2 Bb7 Bg5 Ba2 Bfc4 Re7 Bb5+ Kd5 Rf7 Rd6 Qc1 Ke6 Qce3 Bad5 Bdc4 Red7 Bca2 Bc4 Rf6+ Kd5 Re6 Rdf7 Re7
3b4/bq4n1/Nk3B2/R1r1Nnr1/r4RQn/Nr1PN2b/2RRnKN1/3B3Q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 b4 e5 f4 a5 d6 c5 f6 h5 g5 e4 b6 Kc6 f7 h3 b7 e3 b5+ Kb6 g6 e2 g7 a4 f5 h4 f6 c4 d7 h2 d3 a3 Bf4 c3 Nh3 c2 Bg5 c1R Kf2 e1N Nf4 h3 Ng2 a2 Qg4 Ra4 Na3 Qc7 d8Q Nh6 g8N Nd7 b8N Nf3 Be2 Nc5 Rd1 h1R Rd2 h2 Bd1 Nh4 Na6 Be7 f8R Ne6 f7 Ng7 Bf6 N6f5 Qd5 Bd8 Nh6 Rc5 Re8 Bd7 f8R Rg8 Ree2 Qb7 Rc2 Re1 Red2 Ree4 Rf7 Reb4 Qde4 Rb3 Qe1 Nd4 Qh1 Ne2 Nf5 Bc8 Nfe3 Bf5 Rac1 a1B Rb1 Be5 Ra1 Bb8 Raa2 Ba7 Rf8 Ka5 b6 Be6 Qg5 Bh3 Qg4 Rh8 Ra1 Rhh5 Raa2 Rhg5 Rf7 Qe7 b7 Kb6 b8N Qb7 Nc6 Ne8 Ne5 Ng7 Qe1 h1N+ Kf1 Nhg3+ Kf2 N3f5 Qh1 Nf4 Nb5 Re4 Ra5 Ne2 Na3 Rd4 Rd7 Rdc4 Rd4 Ra4 Rf4
1Q1Q1R1N/N1b1Rn2/rNn2q2/PNb1R1Bk/b1r2Nn1/8/1K2nRrr/5B2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 c5 d4 g5 Kd2 b5 Kc2 e5 a4 b3+ Kb2 e4 f6 b4 h6 Kg6 d6 g4 d5 g3 h7 g2 d7 c4 f7 e3 a5 e2 d6 e1B Ra2 Bg3 Nc3 Nf6 Nge2 g1N f5+ Kh5 Bg5 Nf3 Qb1 Ne5 Nb5 Nfg4 f6 Ra6 Rg1 Qb6 d8N Nbc6 d7 Bc5 f8N Nf7 Rg2 Bf4 Rf2 Bc7 Rf5 Rg8 h8N Rg6 Re5 c3+ Ka1 c2 Kb2 c1N Re7 Na7 Nc6 Rg8 d8Q Bd7 Re5 Be8 Nd7 Rg6 Ne7 Nc6 Nc8 Rg8 Nca7 Rg6 Ned4 Ne2 Ne6 Rg7 Qd3 Rh7 Qb8 Rg7 Qd6 Rg6 Qe7 Rg7 Qed8 Rg6 Kb1 b2 Kc2 b1R Rb2 Qb7 Nb6 Rc1+ Kb3 Rg8 Ra2 Rc4 Kb2 Nfh6 f7 b3 f8R Nf7 Bh3 Qc8 Bf1 Bd7 Re8 Rg7 Re7 Be8 Nf8 Qe6 Nfg6 Qf6 Kb1 Ng1 Rf2 b2 Ka2 Ne2 Kb3 b1R+ Ka2 Nh2 Nf4+ Kg4 h5 Rb2+ Ka1 Bd7 h6 Rg8 Ng2 Kh5 h7 Rbc2 Kb1 Ng4 Ka1 R2c3 Kb1 Rh3 Kb2 Rg7 Ng6 Rh2 h8R+ Nfh6 Rf8 Nf7 Nh8 Ne3 Bf4+ Bf5 Nh4 Rgg2 Bg5 Bc2 N4g6 Ng4 Nd6 Bd1 Ndb5 Ba4 Nf4+
3B4/2K2b1b/1nb1N3/1qnB3r/BQqq1r2/NB4b1/NN2qQPk/1R2BR2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 h5 d4 f5+ Kd3 c5 Kc4 f3 e4 h4 g6 h3 g7 f2 b6 f4 Kb5 c4 b7 c3 Bd2 a4 Qf3 c2 Na3 c1Q Ne2 h2 Rb1 Na6 b8N Ne7 g8B Rh5 Nc6 Bf5 Be1 Qe8 Kb6 Bh7 b5 Nc5 Nb4 Qc4 Nd3 Ra5 Rg1 h1Q Nc3 Qd7 Qe3 f3 Na2 Rf5 Be2 f1B Qf2 Qh5 Bd1 Rf4 Bb3 Bg7 Be6 Be5 Nb2 Bd3 Rf1 Qde8 Qg1 f2 Bg8 Qe2 Bf7 Kd7 d6 Bg8 Bd5 Bf7 Bc6+ Ke6 d5+ Kf6 d7 Kg5 d8N Kg4 d6 Kg3 Kc7 Nc8 Ne6 Nb6 Bd5 Qc6+ Kd8 Bc2 d7 Bb8 e5 Bh7 Nd4 Qb7 e6 Qc6 e7 Bd6 Nac2 a3 e8B Be5 Ne6 Bb8 Nc1 a2 Na3 a1Q Na2 Be5 Na4 Qad4 Nb2 Nc8 b6 Q6b5 b7 Nb6 b8Q Bd6 Qh1 Be5 Qh6 Bd6 Qf6 Kh2 Rg1 f1B Qf5 Rg4 Qf2 Bg3 Qd6 Rf4 Kc7 Qee4 d8B Bd3 Rf1 Qe2 Bf3 Bde4 Bd7 Bc6 Bd5 Nca4 Qb4 Nc5 Be7 Ra8 Bh4 Rg8 Bd8 Rg5 Bc8 Rh5 Ba6 Qa5 Bb5 Qa6 B5a4 Qa5 Qf3 Qab5 Qf2
3bq1B1/QN1qqBKB/2n3R1/1N2B2k/2qr4/Nr1NQB2/rn1r1Pb1/6R1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Ke4 d5+ Ke5 h5 c4 d3 g4 a4 b4 a3 f6 Kg6 b6 e6 c5 d4 c6 h4 b7 h3 b5 a2 c7 h2 f7 d2 b6 d3 Qe1 d1R Qe3 d2 Nh3 Rh5 Rg1 h1Q Bc4 Ba3 f8N+ Kf7 Nd7 Kg6 Nc5 Qe8 Bb2 Na6 b8Q Rh4 b7 Ne7 Qa7 Nb4 b8N Qhc6 Nba6 Bb7 c8B Rb8 Nc7 Ba8 Bb7 Nd3+ Kd4 Bb4 Na3 Ba5 Ncb5 Bd8 Rb1 Qc7 Bf3 a1R Nb7 e5+ Ke4 Nc6 Bf7+ Kg7 Kf5 Ra2 Ba1 Nb2 g6 e4 Nf4 Kh6 g7 Qee7 g8B Qe8 Qe2 e3 Bh7 Qce7 Qd3 e2 Qde3 e1Q Rg2 Qe2 g5+ Kg7 g6 Kh6 g7 Qc4 Rg5 Rg4 Nd3 Rd4 N7d6 Rb6 g8B Bb7 Nc3 Rb3 Ncb5 Rh1 Rf1 d1Q Rfg1 Ba8 Nb7 Rhh4 Ndc5 Rd2 Nd3 Rg4 Rg6+ Kh5 Bh1 Na4 Bc3 Nb2 Be5 Rd4 R6g2+ Kh4 Kg6 Qg4+ Kh6 Qge6+ Rg6 Q6d7 Kg7 Kh5 Nbc5 Bb7 Bg2 Nb8 Bh1 Bg2 Nb7 Nc6 Bd6 Bh3 Be5 Bf1 Be4 Bg2 Bf3+
1rn4Q/2r1Bb2/4RK1Q/R4Q2/qB2bn2/bP2r1NB/q2b1r2/NBk1Q1B1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 f4 a5 g4 h3 g5 a4 g6 a3 f6 h4 g7 a2 b3 h2 b6 h3 f7 Qe8 f5 Rh7 f6 Nd7 b7 Nb6 b8Q Be6 Qe2 Nc8 Qbb5 Rb8 Na3 c5+ Ke4 c4 d4 c3 Nc2 Qc6 Be3 Qc4 Re1 Qa4 Na1 c2 Kf4 c1R Kg5 Rc3 Qbd3 Rc7 Qf5 Rh4 Bg2 Rf4 Be4 Rf2 Bb1 Nh6 g8B Ng4 Bh7 Ne5 Bg6 Nd3 Bh5 Qb5 Bg4 Qa4 Kg6 Nf4+ Kg5 Bg7 f8Q Bf7 Qh8 e5 Qh6 Be6 f7 Bf8 Kf6 e4 Bd2 e3 Bb4+ Kd7 d6 Kc6 d7 Bd5 Bc3 Ba3 f8B Bf7 d5+ Kb6 Bg7 Kc5 Bb4+ Kd4 d8Q Bc1 d6 Ba3 Qf1 e2 d7 Ke3 Qg2 Bh5 Qdh8 Bf7 Bbf8 Kd2 d8B Qb4 Bde7 Qa4 Rf1 e1B Ne2 Kd1 Ng3+ Kc1 Rhg1 h1B Qge4 h2 Bh3 Ra7 Qe2 Rc7 Bb4 Bf3 Bfe7 h1R Bgf8 B3d5 Bec5 Ba8 Bfe7 Be4 Rg2 Rh2 Rh1 Rf3 Bg1 Bd2 Rf2 Rd3 Rf3 Rf2 Re3 Bg2 Re6 Be4 Bg4 Rdc3 Rh5 Re3 Bh3 Rcc3 Nc2 a1Q Rg5 Qa2 Na1 Qa6 Qfg6 Rc6 Ra5 Rc7 Qgg4 Qb5 Qf5 Qa4 Qe1+
N1Q2Br1/3Q1rrk/1B1Q2bR/1P1QQ2R/7b/2N1BB2/Knq2n2/2rnnq2 b - - 0 1 illegal: No possible last move
3rqB2/K4RnN/1R1QQrB1/1P2Qr2/k5Bq/q1nQ2B1/1B3r2/b2q1bN1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 h5 Kc4 c5 g4 a5 b4 e5 f4 e4 d4 e3 b6 h3 Kb5 c4 g5 a4 g6 h2 g7 e2 f6 e1Q f5 a3 f7 a2 f6 c3 b7 h4 d6 h3 d5 c2 Qd4 Nh6 g8B Qf2 Bd3 Nf5 Nd2 Bh6 f8B Ra6 f7 Qfh4 Bb2 c1R Ndf3 Rf1 Qe5 Qe8 Rb1 a1Q Ng5 Nc6 b8B Rf2 Nh7 Ng7 Bg6 Ne7 Kc5 Ra5+ Kb6 Ba6 Ka7 Qa3 Bc7 Bg5 Bb8 Bf6 Qe6+ Kd8 d7 Rc5 Bg3 Bf1+ Qa6 Be5 b5 Kc7 Ra1 Qb3 Qe6 Qc3 Ra6 Qa3 Qf5 Rc6 Qd3 Kd6 d8Q+ Kc5 d6 Kb4 d7 Rcf6 Qc7 R2f5 d8Q Rf2 Bc1 Ba1 Bb2 R2f5 Qe2 Kb3 Qf4 Nd5 Qfe5 Nc3 Qdd3 Rf2 Ng5 Rh5 Nh7 Rhf5 Qg4 Qb4 Rb6 Ka4 Qge2 Qa3 Qe6 Rd5 Q2e5 Rd8 Bc5 R2f5 f8Q Rf2 Qfd6 R6f5 Nf3 Rf6 Rg1 h1R Rg2 Rh2 Ng1 R2f5 Rf2 Rg2 B8f7 h2 Bh5 h1Q Bg4 Rh2 Bg6 Qf3 Qb8 Qd1 Bf8 Rg2 Qbd6 Rh2 Rc2 Rhf2 Rc1 Na2 Rc7 Nc3 Rf7
R1n3b1/B1brBPq1/QnR1b2r/bKn1R3/n3qNQ1/2NB4/1R6/1B1kB3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 d4 h5 b4 a5 f4 c5 f6 e5 b6 h3 g5 a4 f5 a3 b5 a2 d6 h2 d7 h4 b7 h3 b6 Qe7 d8B Qg7 g6 Ra5 d5 Bd6 f7 Rh6 f8R Ne7 f6 Nd7 b8B Bc7 d6 Ra7 b7 Nb6+ Kb5 c4 d7 c3 Bd2 c2 Ne2 Kf3 Re8 c1N Nf4+ Ne2 Nc3 e4 Be1 e3 Rg1 h1Q f7 h2 Rc1 a1N Rg5 Nb3 Re5 Nc5 Qd4 Ng3 Nce2 Nca4 Rc6 Ne4 Rf8 Nec5 Qb4 Qf6 g7 Qg6 g8B Qg7 Qc4 Qhg2 Qa2 h1B Bh7 Q2g6 Qc4 Qe4 Qb4 Bg2 Qa5 Bh3 Qa6 Be6 Bg6 Nf5 Bg5 Ne7 d8Q Bcd7 Rg8 Nec8 Be7 Bf5 Bh7 Bde6 Qd4 Bg6 Nc3 Bgf5 Bd3 e2 Qg1 Bg6 Qg4+ Ke3 Bf2+ Kd2 Be1+ Kc1 Bb1 Bh5 Bf5 Bg6 Bd3 Bh7 Bg6 Ra8 Ba7 Rb8 Rf8 Ra8 b8R Bg8 Bf2 e1B Nce2+ Kd1 Bg3 Ba5 Be1 Nd5 Rbb6 Rb8 Rd8 Rb7 Bb1 Qh1 Bgd3 Qe4 Re8 Bd6 Rf8 Rd7 Rb7 Bdc7 Rd8 Ncb6 Ra8 Nc8 Rbb6 Qeh7 Kc4 Qhg6 Rb2 Ndb6+ Kb5 Qe4 Nc3+
RQ1r3n/BB1q4/1Q2R3/1B5N/n1b1NKQ1/1qQ1rQ2/4p1P1/bbk2qBr b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 a5 b4 d5 c4 e5 c5 h5 g6+ Kf6 g7 e4+ Kg3 Ke5 c6 h4+ Kg4 h3 c7 d3 f4+ Kd4 b6 e3 b7 d2 b5 h2 b6 a4 Qc2 a3 Nc3 a2 Nh3 Ra3 Bb5 e2 Ne4 Be6 c8B Ne7 g8Q Nd7 b8B Ke3 b7 d4 Ba7 Ng6 b8Q Bc4 f6 Nc5 f7 d3 f5 Bg7 f8Q Qd7 Qd8 Be5 Rd1 h1R Qdb6 Bg7 Qge6 Rd8 f6 Nh8 f7 Bd4 f8Q Na4 Nf4 Rc3 Rb1 a1Q Bb7 Qa3 Rf1 Qb3 Ba3 d1B Ra1 d2 Nh5 Rd3 Qc3 Bc2 Bc5 d1Q Rf6 Qf1 Kg5 Bb1 Qg4 Qc8 Re6 Qd7 Qb4 Rc3 Qf2+ Kd3 Qff3+ Kc2 Kf4 Kc1 Ra2 Bg7 Bg1 Re3 Qc3+ Qc2 Qb3 Ba1 Qc3 Nb2 Q8d6 Bd3 Bb8 Bc4 Ra8 Na4 Qde5 Rh2 Ba7 Rh1 Qca5 Qcd3 Qb8 Qb3 Qc3+
1Q5Q/1rBR2Bb/1n2B1NB/rNk5/7K/r1q2qn1/N1BqpnP1/NR2b3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 b4 Kd7 d4 Kd6 f4 c5 Kf2 e5 Kg3 a5 f5 h5 g6 c4 g7 a4 b6 e3 b7 a3 f6 c3 f7 e2 b5 e1R b6 e4 Nd2 a2 Bd3 c2 Ne2 e3 Nb3 Ra3 Nc3 Rh7 Nb5+ Kd7 d6 Kc6 d7 e2 Bh6 c1Q Bc2 Ne7 g8B h4+ Kg4 h3 Kh4 Qc7 d8B Nd7 b8B h2 b7 Ra5 d5+ Kb6 d6 Rg7 Rf1 h1N Qd4+ Kc6 Rf3 Nf2 Rd3 Nb6 d7 Rh7 Qh8 Nf5+ Kh5 Be7 f8N Bb4 Bf6 Ng3+ Kh4 Rg7 d8Q Bf5 Be6 Bh7 Ng6 Qf7 Bd4 Qf3 Bb2 Rc7 Rd7 Rd1 Bbg7 Rd3 Rb1 a1Q Qdg8 Qaa3 Na1 Kc5 Qd8 Be1 Qde8 Rc8 Bc7 Qd2 b8N Rb3 Nc6 Rb8 Nb4 Rb7 Qb8 Qac1 Na2 Rba3 Bcb3 Qcc3 Bc2
K5Bn/1Bb1qR2/B1Rnk3/3RB3/n4Rr1/2Nb3b/p1RQ2P1/1rqNrQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 b4 c5 d4 h5 e4 a5 g6 h4 e5 c4 d6 h3 e6+ Ke8 g7 h2 d5 c3 e7 Kd7 b6 a4 b7 c2 b5 a3 b6 a2 Ba6 Rh6 Bb2 c1R Qf1 Rd1 Be5 Rf6 Ne2 Re6 Nbc3 Qe8 Rc1 Nh6 g8B Nf7 Rc2 Rb1 Nd1 Nh8 Nec3 Rg6 Rg1 Rg4 Rh1 Qf7 Rg1 h1Q e8B+ Kd8 d7 Ke7 d8R Nd7 b8R Nc5 d6+ Ke6 d7 Na4 Rb7 Bd6 Ra7 Bc7 b7 Qh6 b8R Qg5 Bh7 Qfe7 Rb4 Rb8 Rc4 Ra1 Bh5 Rbb1 Rf8 Qh6 d8Q Qhg5 Qd2 Qh6 Ke2 f3+ Kd3 f4 Kd4 f2 Rf7 f3+ Rf4 Bd7 Be8 Bc8 Bc6 Bd7 Bcb7 Qh1 Qfe1 f1N Qef2 Ng3 Qf1 Ne4 Rc6+ Nd6 Bg8+ Nf7 Bf6 f2 Be5 Qh6 Rh1 Bc8 Rh5 Qhg5 Bh7 Nh8 Bg8+ Kd7 Kd5 Qh6 Qfe1 f1B Rhf5 Bd3 Qf1 Nb2 Kc5 Qhg5 Rf7 Ke6 Ra8 Bd7 Rd8 Bc8 Nf2 Re1 Nfd1 Rb1 Rd7 Bb8 Kb6 Bc7+ Ka7 Na4 R4f5 Qe3+ Ka8 Qc5 Rf4 Qa3 Qdf2 Qc1 Qd2 Rg5 Ne2 Kd5 Rd8 Bh3 Rf3 Rg4 R3f4 Ke6 R6c3 Ne4 Rd5 Nd6 Rc6 Bc4 Nec3 Be2 Bg7 Bd3 Be5
6Rn/rkqq2BB/b2R1R1r/1B1N4/Qpr1Qn2/1N1b1K2/B1P2bn1/R6B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 d5 a4 Kd7 g4 Kc6 f4 e5 g6 b5 g7 h5 a5 d4 a6 e4 a7 e3 g5 h4 g6 d3+ Kf3 b3 f6 b2 f5 e2 f7 e1R f6 d2 Nc3 b1Q Nd5 b4 Qe2 d1N Qe4 h3 Ne2 h2 Nd4+ Kb7 Nb3 Ne3 Bb2 Ng2 Bb5 Nh6 g8B Nc6 g7 Ne7 Bh7 Qc7 g8R Ng6 Bc3 Re2 Rd1 h1B Rd3 Bd6 f8Q Bg3 f7 Qd1 Qfe8 Bf2 f8R N6f4 Bg7 Qd2 Rf6 Nf7 Bc4 Qd1 Qa4 Bf5 Bb5 Rc8 Bg6 Rh6 Bh7 Nh8 a8B+ Kb8 c6 Qd2 Qe8 Re7 Rd4 Bd3 Bb7 Qa5 Ba8 Ra7 Qe4 Qd8 Ne3 Qd7 Rdd6 Qc3 Nd5 Qc5 Bb7 Qc4 B7a6 Ka8 c7 Qcc6 Bc4 Qc5 Bab5 Kb7 Qe7 Qb6 Qe4 Bf1 Nc5+ Ka8 Qe6 Qe8 Ke4 Qd7 Ba2 Qb8 Be2 Ne1+ Bf3 Ba6 Nb3 Kb7 Qe5 Bg2 Qe7 Bgf1 Bh1 Neg2 Kf3 Bfd3 Qe4 Re8 Qg6 Re4 Qe8 Rc4 Qe4 Qc6 c8B+ Ka8 Nd4 Qbc7 Bd7+ Kb7 Nb3 Qb5 Bdf5 Qe8 Bd7 Qec8 Bb5 Q7d7 Rgf8 Qcc7 Rg8
5k2/Q1Qn1NB1/2b3Qb/1q3RPR/Q2p3q/KB1n2RN/4Q1R1/b1r1rr1n b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 d5 Kc2 h5 Kb3 e5 g4 d3 f4 e4 c5 d4 b6 h4 g6 a4+ Ka3 d2 b4 h3 b7 e3 b5 e2 g7 e1B f6 h2 f5 Nh6 g8Q Rh7 b6 Be6 f7+ Ke7 c6 Bh4 c7 Ra7 c8Q Rg7 f6+ Kd6 Nh3 Rg5 Qcc2 Rg7 Qe2 d1R Ra2 Bd7 Nc3 Bc6 Nb5+ Kd7+ Nd6 Re1 Rg1 h1N Rg3 Bg5 Qgh7 Bd2 Qhg6 Bc3 g5 Qe8 Bf4 Ng4 Be5 Ngf2 Bg2 Rh7 Bd5 Ba1 Bb3 Bh6 f8R Nd3 f7 Ke7 Rh8 Nd7 b8Q Rc7 f8R Rf7 b7 Rff1 Rf5 Rc8 Nf7 Rc7 Rh7 Kf8 Qa7 Qb8 Rb2 Rc8 Ka2 a3 Bh8 Qf4 b8Q Qg4 Qa4 Qh4 Qba7 Rc7 Bc4 Rc8 Kb3 a2 Ka3 Re8 Bb3 Rc1 Qh2 Ree1 Qce2 Bb7 Rd2 Bc6 Be5 Bc3 Bf6 a1Q+ Ra2 Qb1 Rc2 Bg7 Rh5 Ba1 Be5 Bh6 Rd2 Qc2 Bh8 Qc4 Bg7+ Kg8 Ra2 Qb5 Qf3 Rc2 Qf4 Rcc1 Qfc7 N3e5 Qf2 Nd3 Qe3 Nb8 Rag2 Nd7 Be5+ Kf8 Qe2 Bc3 Bf6 Ba1 Bg7+
5R1q/rBK2n2/Nr5P/3r1QB1/1Nkb2b1/2R1QpnB/Rq3BB1/2nbR3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 c4+ Kc5 h4 f5 b4+ Kb6 e4 d5 h6 a5 c5+ Ka7 h5 a4 b6+ Kb7 h7 Kc6 h6 g6 b7 d3 e6 Kb5 Ke5 a3 e7 f4 e8Q+ Qd7 c6 f3 c7 a2 Nh3 g5 Na3+ Ka6 b5+ Kb6 Nf4 Kc5 b6 g4 Nc2 d4 Nd5 d2 Bg2 g3 Ndb4 d3 Na6+ Kc4 Ncb4 Qf7 Re1 Bg4 c8B Bg7+ Kd6 Nf6 e5 Nbd7 b8B Qf8+ Kc7 Ne4 b7 Ra7 e6 Ne5 e7 Nf7 Qc2+ Bc3 Bf5 d1B Bg5 d2 Rc1 Rg8 h8R Rg6 Qb1 Qg7 Rf8 a1Q Rc2 Qd4 Ra2 Qb2 Bd7 Qh8 Qc2 Ra8 Ba7 Rb6 Qb1 Bd4 b8R Bf5 Rc8 Bg4 Bh1 g2 Qc2+ Nc3 Qf5 g1N Bg2 Ne4 Bc6 Ne2 Bb7 Rd6 Bb6 Nc1 Ba7 Ng3 Bc5 Bf6 Bf2 Rb6 Qeb5+ Kc3 e8B Bd4 Bd7 Ra7 Qbe5 Kc4 Qe3 Be2 Qf6 d1R Bf5 Rd2 Qfe5 Bd1 Q5f4 Bh5 Bfh3 Bg4 Qf5 Re2 Qa3 Re5 Qe3 Rd5 Kb8+ Kb5 Rc3 Nd6 Kc7 Nf7 Rca3 Kc4 Rc3+
N2q1N1b/1N2b1q1/KNbB3P/3nRqB1/1p1r2Rr/2Q4k/2n5/1rQB1NB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kb5 Kh4 f4 g5 a4 c5 d4 e5 a5 b3 f6 b6 h6 b2 f7 g4 a6 g3 d6 g2 d5 c4 h7 e4 a7 c3 d7 e3 d6 e2 f5 e1B f6 c2 Ne2 g1Q Bg5+ Kg4 h4 c1Q h5 Bb7 h6 Ne7 Ra5 Qc3 Nf4+ Qf3 Qc1 Qc7 d8N Qfg3 d7 Qh3 Nd2 Be4 Nd5 Na6 Nb7 Nb4 d8B Nc2 Ka6 b5 Nb6 b1R Be2+ Bf3 Be3 Nd5 Bd1 Be7 Nf1 Bc3 f8N b4 f7 Rg8 Rh2 Bh8 Rg2+ Kh4 Bd4 Qf5 Rg4+ Kh3 Rb5 Rc8 a8N Rg6 Rc5 Rd6 Bf2 Qg3 Bg1 Qge5 Rb5 Qg7 Ra5 Qcd7 Rb5 Rc4 Ra5 Bh4 Bg5 Qd8 Rc5 Nf6 Re5 Nd5 Ng6 Rd4 f8B Rc6 Bd6 Rcc4 B5e3 Be7 Nf8 Nc3 Bg5 Bc6 Rg2 Rh4 Rg4 Rd4 B1e3 Qgf7 Bf2 Nd5 Bg1 Bhf6 h8Q Qg8 Qh7 Bh8 Qg6 Qh7 Qe6 Qg7 Qc8 Ba4 Qc5 Bc6 Qc3+
4BR2/b1BB2K1/k5P1/B2QR3/p3bn2/r2R2Rb/Nn1q2BQ/n1rq1rN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 d4 c4 g4 f3 b4 f6 Kg6 Kc7 e4 Kb6 d6 a4 e5 f5 e6 c3 e7 f4 e8B c2 d7 f2 d5 f3 d6 h4 Bd2 c1N Bg2 f1R Rh3 f2 Nc3 Ne2 Na2 Bh6 Rg3 Ka7 b6+ Ka6 b7 Nc6 b8B h3 Bc7 h2 Qc2 h1B Re1 Ned4 Re5 Nf6 b5+ Kb7 b6 Nd5 Qd1 Nc2 Ba5 Ka6 b7 Na1 b8Q Ncb4 Kf7 Nf4 g6 Rg8 g7 Nbd3 g5 Nb2 Qd5 Rh8 g8B Bf8 g6 Rh3 Rgg5 Ra3 Rg3 Qg5 d8R Bh3 d7 Bc5 Rc8 Ba7 d8R Rc1 Kf8 f1Q Kg7 Qd1 Rd7 Qd8 Be6 Qg5 Qdb3 Qd8 Rdd3 Qd4 Qd5 Qc3 Bf1 Be4 B6d7 Qcc2 Bg2 Qcd2 Qbb3 Rb8 Qc2 Rb4 Bf7 Rb8 Rf8 Rb6 Bfe8 Rbb3 Rd4 Rf3 Rd3 Rf1 Bf3 Qc3 Qh2 Qcd2 Bg2
K2BqQ2/Q1q5/2rkNpB1/1b1r2nQ/n2b1N2/1P2N1Qq/2N3n1/R1Rb1Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 a5 Ke4 c5 h4 g5 d4 g4 d6 c4 Kd5 a4 e4 a3 h6 g3 h5 c3 e5 f3 e6+ Ke8 d7+ Ke7 b6 f2 h7 c2 b7 a2 h6 g2 b3 Qe8 d8N Na6 b8Q Bg7 Qa7+ Bd7 Bg5+ Bf6 Bd3 c1N Na3 f1B Bg6 Nd3 Nh3 g1Q Nc2 Nb8 Nf4 Be2 Qf1 Qg4 Nb7 Ba4 Nd6+ Nd7 Nc4 Bb5 N4e3 Bd1 Rc1 a1Q Rg1 Bc4+ Kc6 Rc8+ Kb7 Qc3 d5 Kd6 e7 Ne1 Ra1 Bb5 Rh1 Qf8 e8Q Rc6 Ka8 Bd4 Bd8 f6 Rc1 Qe7 Qf8 Ng2 Qg7 Qe8 Rg1 Ke5 d6 Nc5 d7 Qh3 Rh1 Kd6 Rg1 Ne7 Ra1 Rg8 h8Q Ne6 h7 Ng5 Qf8 Rg7 Qhg8 Qa5 h8Q Qc7 Qh5 Rh7 Qfh6 Nd5 Qgf8+ Re7 Qg4 Nc3 Qhh5 Na4 Qg3 Bf3 Qc4 Bg4 Rgc1 Bd1 Qf1 Qf7 Qg7 Re5 Qgh6 Rd5 Qf8+ Ke5 Be7 Qfe6 d8N Qg8 Nde6 Qf7 Qfh8 Qe8+ Bd8 Kd6 Qf8+
5Q2/3bNn1k/1Bqbp3/2R1r3/1qP2b1K/1QNNBN2/qrBBnB2/r4R2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 h4 a5 c4 g5 f4 Kg7 Kf2 d5 Kg3 a4 h6+ Kh7 h5 d3 b6 a3 b5 e6 f6 a2 f7 d4 f5 g4 b7 d2 b6 d3 f6 Bb4 f8Q Qd7 f7 Be7 Qb3 d1R Be3 d2 Nf3 Re1 Nc3 Nf6 Kh4 Bc5 Bd3+ Ne4 Bc2 d1Q Rf1 Nc6 b8N g3 b7 g2 Na6 g1B b8B Qc1 Bbf4 Bh2 Nb4 Qb1 Nd3 Ne5 Bg3 Bd6 Bgf2 Rg8 Bd2 Ng3 Bb6 Kh8 h7 Qb2 Rb1 a1Q Bde3 Qaa4 Ra1 Qaa7 Ra5 Qc6 Rc5 Bd7 Bd1 Qba2 Bc1 Ng4 Bg5 Q2a5 Bh6 Re5 Be3 Qc8 Qe8 Bb5 f8N Qb4 Ng6+ Kg7 Qd8 Bd7 Ne7 Qc6 Qc8 Qa1 Qb8 Ra2 Qd8 Re8 Bc2 Nh6 Bf2 Nf7 h6+ Kf8 Qa8 Rb2 Qd8 Ne2 h8B Rf5 Bhd4 Re5 h7 Kg7 Bde3 Bf4 Qa8 Rc8 Bd2 Rc7 Qd8 Ra7 Qb8 Qb1 Qc8 Ra1 h8B+ Kh7 Qa8 Re4 Qf8 Qa2 Bhd4 Re5 B4e3
K1nBkB2/4Bn2/2pQBQ2/2rbRq1b/1N1b3Q/3P2R1/Q2nr2q/1qQ3N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Kf3 a5 Ke4 h5 g4 a4 f4 a3 b4 h3 g5 a2 d3 h2 d6 h4 Kd5 e4 g6 h3 b6 e3 d7+ Ke7 g7 e2 f6+ Kf7 f5 e1N b7 Rh4 b5 Rb4 b6 Bd6 Bg5 Rf4 Qc1 Rfa4 Na3 R4a6 Nc2 Qf8 d8B Ke8 Nb4 Nc6 b8Q Be5 b7 Nh6 g8Q Nf3 Be2 Nd2 Bg4 Na7 f7+ Kd7 f6+ Re6 Rb1 a1Q Rb3 Bd4 Bh4 Qe8 f8B Qg6 f7 Qb1 Bhe7 Qh7 Ra3 Qg6 Ra5 Qh7 Bd1 Re2 Qg5 Qg6 Qh4 Qh7 Bb3 Qg6 Nf3 Qf6 Rf1 h1B Rg1 h2 Rg3 Bg2 Bc4 h1Q Ba2 Qh2 Rb5 Bh3 Ng1 Bg4 Bc4 Bh5 Bb3 Nc6 Qa7 Qff2 b8Q Bb7 Qa2 Ra5 Bg7 Qf4 f8Q Nf7 Qh8 Qg4 Bgf8 Ke8 Q8f6 Ba8 Qb6 Na7+ Qbc6+ Qd7+ Qd6 Nc8 Bc4 Ba1 Kc5 Be5 Be6 Bb7 Qf3 Bd5 Qf2 c6 Qff6 Na7 Kb6 Bd4+ Rc5 Qc8 Bf5 Qe6 Kb7 Nc8 Bg4 Qe5 Be6 Rb5+ Ka8 Qf5 Rc2 Rc5 Rc4 Bc3 Re4 Bd4 Re5
1K1n2rB/r7/1Pk1q1B1/3q1B2/n2BQn1R/B1Rp1Nbb/1r3R2/1Qq3RN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 f4 g5 b4 e5 c4 g4 c5 g3 c6+ Kc7 f6 g2 f5 a4 f7 a3 f6 a2 b6+ Kd6 h6 Rh7 h5 Bh3 b5 Ra4 c7 Bd7 c8B Bc6 b7 Ne7 b6 Na6 b8R Ng6 Ne2 g1Q Bf5 Bd7 Nd2 Rb4 Rh4 Rh8 h7 Kc6 h6 Bd6 f8R Nc7 f7 Rb2 Rc8 Rg8 h8B Be6 Rb1 a1R h7 Ra7 Ng3 Qg5 Nh1 e4+ Ke2 e3 Kd3 e2 Nf3 e1Q Be5 Qh6 h8B Qgg5 Qe2 Qa5 Qe4 Qc5 Beg7 Bg3 B1h3 Qge7 Bhg4 Bd7 Bh5 Qe6 Be5 Rba2 Ba3 Rb2 Rg1 Qhc1 Rfe8 Qa5 f8Q Qac5 Qh6 Qa5 Qd2 Qac5 Rf8 Qa5 Ke2 d3+ Ke3 Nf4 Kd4 Qb5 Qde3 d2 Bhg6 d1N Qb1 Nc3 Qee4 Na4 Bef6 Qf7 Ke5 Qb3 Qe1 d4 Qb4 d3 Qe4+ Kb5 Kd6 Nce6 Bd4 Nd8 Rc3 Bc8 Qb7 Qfe6+ Kc7 Qbd5 Kb8 Bd7 Qc7 Bc8 Qe5 Bd7 Qe4 Bc8 Bdc5 Kc6 Bcd4+ Kd7 Bg4 Nh3+ Qe5 Qf5 Re8 Nf4 Bh3 Qg4 Qe1 Qgf5 Re2 Qg4 Rf2 Qgf5 Rb3 Kc6 Qe5 Qff7 Qe4 Bf5 Bg4 Qe6 Rc3+ Nc5 B4h5 Bg4 Bf5 Bh3 Rb3 Na4 Be8+ Rd7 Beg6 Ra7 Rc3+
1K1B1r1N/1n3Q2/kpR1n3/5nR1/2Bq1r1q/br1bqP2/RQ1Q3Q/2N1R1R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 e5 Ke4 g5 a4 c5 d4 Kc7 h4 Kb6 f6 c4 a5+ Kb5 h6 b3 d6 b2 Kd5 g4 h5 g3 f3 b6 a6 g2 h7 e4 h6 e3 d7 e2 f7 e1R a7 Ba6 Nd2 b1Q Ne2 g1N Nb3 c3 Nf4+ Qd3 Qd2 c2 Ng6 Qc8 d8R Qc3 Rc8 Nd7 Rc6 Bg7 Kd6 Ne7 Kc7 Rhb8 h8Q Qdc4 f8Q Re3 h7 Nh3 d5 Bh6 d6 Q4d3 Qf7 Nf5 Rg1 Qa5 Qb2 Nc5 h8Q Qb4 d7 Nf4 d8R Bf8 Qhh2 Nb7 Nh8 Qa4 Ra2 Ba3 Rdg8 Rf8 R8g5 Qd4 Ra1 Q3c4 Ra2 Rae8 a8R R8e4 Re8 Ne6+ Kb8 Rh4 Bd3 Rf4 Be4 Rc3 Bd5 Rd3 Nc5+ Rb3 Nd3 Qa4 Qb1 Qab4 Bb2 Ka5 Nc1 Bd3 Bc3 Ka6 Qb2 Qe7 Bb4 Qef6 Be7 Qh6 Bd8 Qh4 Ne2 c1Q Re7 Qce1 Nc1 Qee3 Re8 Neg7 Re5 Ne6 Re4 Qef2 Ree1 Qfe3 Bc4+
2r2RR1/2B1k1Q1/P4qq1/b1KB1b1r/1nBprN2/1R5R/2bnn1R1/2B1NQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 d5 Ke3 b5 Kd4 g5 h4 b3 f4 b4 a4 g4 c4 e6 h6 b2 f6 b3 h5 g3 f5 g2 h7 Na6 c6 Nb4 a5 Bb7 a6 Rc8 h6 Rb8 f7+ Ke7 c7 e5+ Kc5 d4 c8B e4 Nf3 g1R Nc3 b1B Rh2 e3 Ne2 b2 Ne1 Rh1 Be6 Bd5 Rg2 Nf6 Nf4 e2 Ra3 Ba8 Bd5 Rb6 Rb3 Bc2 Qd3 Rg8 h8Q b1N h7 Rh5 Qg7 Re6 h8R Nd2 Rh6 Re4 Qf3 Rg5 Rh3 Nh5 Qd3 Ng3 f6+ Kd7+ Kb5 Rh5 c5 Bd6 f8B+ Qe7 f7 Bc7 Qc4 Qf6 Bd6 Ba5 Bc7 Ke7 c6 Rc8 Kc5 Qg6 Bb6 Bb7 c7 Bc6 Qb5 Bd7 Qd3 Bf5 Qf3 Rch8 c8R Rd8 Ra8 Rc8+ Bc7 Qf6 Ned3 e1Q f8R+ Qf7 Qe2 Qf2 Ne1 Qf3 Qd3 Ne2 Rg8 Qg4 Qf3 Qg6 Rb8 Nc3 Bfc4 Ne2 Qf1 Qf6 Rb6 Qg6 Rd6 Qf6 Rdd8 Qg6 Rdf8 Qf6 Qh6 Q7g6 Qg7+
3N2N1/b1rQ3P/pN1Rr1b1/1NnbQR1R/3qRKB1/k1n1N3/5Bqn/q7 b - - 0 1 illegal: No possible last move
Q2r2N1/4NP1B/N2qBqnR/N2rn2k/1b2q3/rB2b1Rb/1BB1pQ2/6K1 b - - 0 1 illegal: No possible last move
n2BN2r/1nbP2B1/pQ6/1R1b2r1/nN3N2/QBqN3N/1r4RK/1kqbB3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 h5 f4 c5 Kf2 e5 Kg2 h3+ Kh2 a6 f6 c4 f5 e4 g5 h4 g6 c3 b6 e3 b7 c2 f7 e2 b5 e1R f6 Bg4 g7 Be6 b6 Nh6 g8N Re3 Nd2 Ra3 Rb1 Bf5 Nb3 Qc8 Bc4 Nd7 b8N Ra2 b7 Bg4 Qd3 Nb6 Bd2 c1N Nc6 Nf5 Nb4 Rb2 Nc5 Bd1 Bb3 Ne2 b8Q+ Qc7 Qe3 Nc3 Ncd3 Nca4 Qa7 Be7 f8B Qc3 Bg7 Bd8 f7 Bc7 Nf6 Rag8 f8N Na8 Qb8 N8b6 Ne6 Na8 Bh6 Rg5 Nef4 Ne7 Bg7 Nc6 Qg3 Nd8 Qb5 Nb7 Ne8+ Ke7 Qb6 Kf7 Ne6 Kg6 d6 Kf5 d7 Ke4 Nef4 Be2 Be1 Bd1+ Qg2+ Ke3 Nf3 Ke4 d8B Ke3 Rg1 Ke4 Kh1 h2 Qg3 Ke3 Rg2 Ke4 Rd2 Ke3 Kg2 h1B+ Kh2 h3 Ng1+ Bhf3 Rg2 Ke4 Kh1 h2 Ngh3 Ke3 Bf2+ Kd2 d5 Be4 d6 Bef3 d7 Bd5 Rc1 Qe5 Rc5 Qc3 Ne1 Kc1 Rb5 Kb1 Ned3 B1f3 Be1 Bg4 Qf3 Bh5 Re2 Bg4 Kg2 h1Q+ Kg3 Qg1+ Rg2 Qe3 Kh2 Qec1 Qfe3 Bd1 Qa5 N4b6 Qa3 Na4 Qb6
1bk1n3/1pr3B1/b1R1B2Q/2n1r3/2R1q3/K1B2QPR/1Bq1N3/1NqRr1Bn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 h5 d4 e5 Kd2 c5 Kc2 h4 Kb3 h3 g6 e4 g3 h2 a5 e3 g7 e2 a6 e1Q a7 Qg5 d6 Be7 d5 Rh5 f6 Qh4 f7 Qd2 f8Q Bf6 f5 Ne7 g8R Rg5 Bc4 Bd4 f6 Nf5 f7 Be5 Rg6 Ng7 Qf3 Ne8 Ne2 Qe4 Qh6 Na6 Bb2 Qdc2+ Ka2 b3+ Ka3 Kd8 f8B Bg4 d7 Bb8 Bfg7 Re5 Rc6 Be6 Rd1 h1N Bc3 b2 Bb3 Ke7 d8B+ Kd7 d6 c4 Bb6 Nc5 Ba2 Bh3 Rc1 Bf1 Bb3 Nd3 Bg1 Kd8 d7 Nc5 Bb4 c3 Be6 Bc7 Rd1 Rc8 a8R Bb8 Ra4 Rc7 Ba5 Na6 Rac4 Nc5 Nd2 b1R Ra2 Rc1 Nb1 Qd2 Bb4 c2 Bc3 Qdd3 Rd2 Re1 Rd1 c1Q+ Rb2 Qce3 Rbd2 Qc2 Rdd4 Qd5 Rh4 Qde4 Rh3 Qed2 Bb2 Qdc1 Bd5 Ke7 d8B+ Kd7 Bg5 Kc8 Bd2 Qcd3+ Bc3 Qdd2 Nd4 Bd3 Ne2 Qdc2 Rd4 Bb5 Rc4 Ba6 Be6+
4K2n/B1B1R3/6R1/1BB3BP/2p1r3/2Q1Qnqk/nrb3Nn/bn1R1NrR b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 Kh4 d4 a5 f4 g5 b4 c5 f6 e6 d6 a4 d5 a3 f7 a2 b6 g3 d7 g4 d6 g2 f5 g3 b7 Qb6 d8R Ra4 f6 Rh7 d7 Be7 f8R Nh6 f7 Na6 b5 Nb4 Nh3 g1N b8Q g2 Qc7 Qb8 b6 Bf6+ Kd6 e5 b7 e4 Qd4 Nf3 Rfe8 g1R Nf4 e3 f8B e2 Nd2 e1N Ng2+ Kh3 Qe3 Nf7+ Ke6 Bd4 Bb5 Nh8 Re7 c4 Qce5 Rh4 Nf1 Re4 Rb1 Qc7 b8B a1N Ba7 Na2 Qc3 Rb4 Bg5 Qb8 Rd1 Rb2 Rde8 Bb7 d8B Nb3 Kd7 Nd2 Bc7 Nb1 Rc8 Bd5 Ke8 Bg8 Qf4 Bh7 Qfe3 Bg7 Rcd8 Be5 Rd6 Bg7 Rg6 Bd4 Ba5 Qg3 Bc7 Rd2 Qb2 Re6 Bd7 Nh4 Rf6 Kg4 Bg7 Be5 Qc2 Ba1 Qcc3 Rb2 Bb5 Bc2 Rd1 Re4 Rg6 Nf5 h4 Nh6 h5 Nf3 Nh2+ Kh3 Bgd4 Ng4 Nf1+ Ngh2 Bdc5
RqB2r2/1bbnBBr1/2N3B1/1nPpr1r1/k4KQB/2r2Q2/4N1QQ/b6R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 h5 f4 e5 b4 d5 g4 Kd7 c4 a5 g6 a4 f6 a3 c5 a2 g7 h4 b6 Kc6 b7 e4 b5+ Kd7 f7 h3 f5 h2 g5 d3 Ke3 d2 f6 Rh7 g6 Ra3+ Nc3 Qc7 b6 Kc6 Ne2 Ra7 Bh3 Ra4 Nb5 Nd7 b8Q Nh6 g8B Ra8 g7 Bd6 f8Q Bb7 f7 Qc8 Bb2 Bc7 Bf6 Qe8 Qa4 d1R Bh4 Rc1 Qd8 Rg1 Qg5 Qb8 Qg2 Rc1 Bf5 Rg1 Bg6 Nf5+ Kf2 e3+ Kf3 Rc1 Qag4 Nd6 Kf4 Rh5 B8h7 Rg5 g8B Rc3 Bf5 Ra7 Bhg6 Ra8 Qe7 Ra7 f8B Ra8 Qf6 Ra7 Rhb1 h1R Be7 Re1 B8f7 Rf1+ Q2f3 Rf2 Rh1 Rf1 Qg7 Rf2 Nc1 e2 Qg2 e1R Ne2 Ne5 Bc8 Nd7 Qh6 Rff1 Qh5 Rf2 Qhg4 Rff1 Ng3 Ree5 Ne2 Rf2 Na3 Rf1 Nc4 Kb5 Na5 Ka4 Nc6 Nb5 Rb1 Ba6 b7 a1B Rb2 Qa8 b8Q Rf2 Qb7 Qb8 Qb6 Bb7 Ra2+ Na3 Qb2 Rf1 Qd2 Rf2 Rb2 Nb5 Ra2+ Kb3 Qe3 Na3 Bg8 Ba5 Kg3 Nb6 Qff4 Ba6 Bd6 Nb5 Ra4 Rg7 Be7 Nd7 Ra2 Bd8 Ra5 Bb7 Ra8 Bc7 Qd3 Ref5 Qe5 Rf8 B8f7 Rff5 Qf4 Re5 Kf3 Rfg8 Qfh2 Re8 Kf4 Rf8 Na7 Kb4 Qdf3 Ka4 Nc6+
1B2B2r/3Q4/N2n1nbN/p3n1b1/1NBRP3/1B1n1BKb/2Rr2Q1/1k1q1Nn1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 c4 Ke6 g4 h5 b4 d5 e4 a5 c5 f5 b6 f4 b7 f3 c6 d3 c7 h4 b5 d4 b6 h3 g6 d2 g7 h2 g5 d3 g6 Qd4+ Kg3 f2 Nh3 Ba3 Ra2 Nd7 b8Q Ngf6 g8N Be7 b7 Qd5 Qf3 d1B g7 d2 Qg2 Bh5 Qa7 d1N b8N Ne3 Rc2 Nc4 Bf4 Nd6 Bc4 Bg6 Rd1 Bd8 Na6 h1N+ Kf3 f1N Nh6 Nf2 Nd2 Nd3 Nf2 Ng3 Nf1 Ne2 g8B+ Bf7 Bh2 Ng1+ Kg3 Rb8 Rdd2 Rb2 Qb7 Ng4 Bb3 Bg5 Qa7 Ndf6 Qb7 Ke7 e6 Nge5 Qb5 Bg6 Qd7+ Kf8 e7+ Kg7 Bf7 Qd4 e8B Ra2 Qa4 Bh3 c8B Qa1 Bg4 Qd1 Bf3 Rb2 Re2 Ra2 Rc4 Rd2 Rd4 Nfd7 Bfc4 Kf6 Rd5 Ke6 Qb5 Nf6 Rd4+ Nd5 Qb4 Ng4 Qb5 Ke5 Qc5 Nc1 Qc6 Nb7 Qc5 Rb2 Qc6 Ndf6 Rdd2 Rc2 Nd3+ Kd4 Qb5 Kc3 Ndb4 Kb2 Rd4 Kb1 Qd7 Nd3 Rf2 Bc1 Kh4 Be3 Bb8 Bg5+ Kg3 Nge5 Rd5 Nd6 Rd4 Ra2 Rc2 Rb2 Rc3 Rd2 Rc2
R1r1BQ1b/2nRK3/6Pb/BN2Qr1q/NkBrnN1r/4r2b/2p1B3/B1N5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 d4+ Kb4 g4 h5 e4 c5 g6 a5 d6 c4 b6 c3 d5 h4 d7 h3 Ke6 c2 d6 h2 e5 a4 b7 a3 g5 a2 g7 f3 g6 f4 Be2 f2 Qd5 f1R Na3 f3 Nb5 Nf6 g8B Ka5 b4+ Ka4 Bb2 Nc6 b8N f2 Na6 Bb7 Bd4 Qa5 d8B Rh6 d7 Rc8 B8b6 Nh5 d8N Ra8 Qc5 Bg7 Qf8 Nb8 Ke7 Nf6 Bgc4 Rd1 Ne6 f1R Nf4 Bc8 e6 Rh4 Bb2 Rd5 Rd1 Rd3 Ba1 Re3 Rd7 Rd1 Kf7 Rf1 e7 Bh6 e8B Ne4 Ke7 Rg4 Nac7 Na6 Nc3+ Ka3 Na4 Qh5 b5 Rf2 Ngh3 Rf1 Nd3 Rf5 Nc1 Kb4 Nf4 Rb8 Rhd1 h1R Rd8 Be6 R1d7 Rhh4 Rc8 Rb7 Ra8 Rb8 Bbd4 Rd8 b6 Rc8 Nb5 Nc7 b7 Nf2 b8Q Ne4 Bab2 a1B Ba7 Rc5 Bf6 Rf5 Bb6 Be5 Bg5 Bh8 Bf6 Rg1 Ba1 Rd1 Qb7 Rd4 Qd5 Rg5 Qe5 Bh3 Bg8 Rf5 Ba2 Nc3 Bac4 Ne4 Ba5+
r1b2R1N/1Nb1R2K/4Rbp1/1R3r2/2R2BB1/Q2Pqr1n/1nQ2N1N/1kb3b1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 h4 Kb4 f4 c5 h5 e5 b6 a5 d6 a4 f6 g3 f5 c4 h6 a3 h7 a2 d7 g2 f7 c3 d3 c2 b7 Kb3 f6 Nh6 Rh4 Ra3 Be2 Qe7 d8N Be6 Bg4 Ra5 Bf4 Na6 b8R+ Rb5 Rb7 Bc8 Nf3 g1B Nc3 g6 Nh2 Qe8 Re7 Nc5+ Kd5 e4 Ke5 e3 Ne4 e2 Nb7 e1B Nf2 Bg7 f8Q Ba5 Rc1 Rg8 h8N a1R Qe2 Ka2 b4 Kb2 Re1 Rc1 Re6 Bc7+ Qd6 Ra5 b5 Kb1 b6 Rd1 Qd2 c1B Re2 Rf1 Qc2+ Ka1 Re1 Ra8 Re4 Na4 Re7 Nb2 Re2 Bf8 f7 Ka2 Kf6 Bg7+ Kg5 Rf8 R2e6 Be5 Qcc6 Kb1 Qa3 Ng8 Qcc3 Nf6 Kh6 Ne4 Kh7 Bf6 Qd2 Rg8 f8R Ng5+ Kh6 Nh3 Kh7 Ra5 Qdc3 Rf5 Qcc5 Qa4 Qc6 Qb3 Qca4 Qa2 Qc2+ Ka1 Bg3 Rc5 Bf3 Rd5 Nh1 Bce5 Nc5 Na4 b7 Rf2 b8R Ba6 Qd2 Bc7 Rfd8 Rf5 Rc4 Bb7 Rd5 Kb1 Bg4 R2f3 Bf4 Re8 Qd1 Qd2 Nf2 Nb2 Rdd8 Ba6 Rb5 Qe3 Qd2 Bc8 Nb7 Bd7 Rf7 Rf8 Rde8 Rg8 R8e7 Ra8 Rf8 Bc8 Qc2#
5b1r/1nN3qB/R1rP1n2/5p1R/K1QQ1Qn1/1BrB2r1/b1QN1B2/1r2Bk2 b - - 0 1 illegal: No possible last move
Nn1b3n/2rn1QB1/3pR2Q/KnQq2kb/2rnr2R/R5PQ/5NB1/R2Q4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 a5 f4 e5 b4 h5 b6 d3 Kc3 d2 c5 h4 c6 a4 b7 a3 f6 Kg6 c7 e4 b5 h3 f5+ Kf7 g3 a2 g6+ Ke8 b6 h2 f7+ Ke7 Kb4 e3 g7 e2 Bb2 e1N Nc3 Nf6 g8Q Ng2 Na4 Nf4 Bg2 Ng6 Qh7 Ra7 Nh3 d6 Nf2 Nfd7 f6+ Ke6 Bd4 Be7 f8Q Kf5 f7 Kg5 Bg7 Qe8 Re1 h1R Re6 Re1 Qfg8 Re3 f8R Bd8 Rf4 Qf7 Rh4 Re4+ Kb5 Qf3 Qf7 Rg8 Bf8 Nh8 Bg7 Nc6 b8R Qh5 Qe2 d1N Ra8 Ncb8 b7 Qf3 Qc4 Nc3+ Kb4 Qf5 Nb6 Qd5 Qd4 Nb5 Qc4 Na6+ Ka5 Re8 Qc3 Rc4 b8Q Re7 Qb7 Nab8+ Qa6 Bb7 c8Q Bc6 Qd4 Rc7 Qa7 Bb7 Qd1 Bc6 Rb1 a1N Rb3 Nc2 Ra3 Ncd4 Ra1 Qf5 Ra3 Bf3 Ra1 R7c5 Qac7 Re5 Qc5 Bh5 Ra3 Re4 Ra7 Nc7 Na8 Qd5 Rb7 Nf6 Re5+ Nf5 Rb1 Rd7 Re8 Nd4 Rba1 Rde7 Qh3 Ncb5+ Nb6 Rc7 Na8 Nfd7 Re7 Bf3 Re6 Bh5 Qh6#
4NRN1/2nbQ1B1/1pBQr3/2r2rkN/1P4n1/K3n3/1rQqNRQb/1Q1r4 b - - 0 1 legal: proof: e4 a5 b4 h5 c4 f5 exf5 d5 cxd5 h4 Qb3 h3 gxh3 a4 h4 axb3 h5 Ra4 Bd3 Ra5 Bf1 Ra8 Kd1 Kf7 f4 Kf6 d4 g5 h4 e5 a4 c5 h6 c4 h7 g4 a5 b6 h5 b2 Kc2 e4 a6 g3 h6 g2 a7 e3 d6 e2 d5 e1R d7 c3 Kb3 c2 d6 Nc6 Nh3 g1R Bb5 Re2 Ra2 Reg2 Nc3 b1N Bb2 Re1 Rf1 Ne5 Bc6 Rb8 a8N c1R Nc7 Ra8 Ne8+ Kf7 f6 Kg6 f5+ Kh5 f7 Rg4 f6 Ra5 Nf4+ Kh4 Nh5 Rc2 Rf3 Be7 f8Q Ra7 Qg7 Rh1 f7 Re2 f8Q Rf2 Qf5 Na3 Qb1 Nec4 Rf8 Rgf4 Qg2 Nf6 Ba1 Rg8 h8Q Rg6 h7 Ng4 Qg7 Rgf6 h8Q Re6 Qhh7 Rd1 Bb2 Bg5 Qe7 Nb5 Qhd3 Nc7 Qg6 Na5+ Ka3 Rff6 Ba1 Bf4 Rb2 Bh2 Q6e4 Rf3 Rf2 Rg3 Qec2 Kg5 Ka4 Rh3 Ne2 Rb3 Bc3 Rb2 Ka3 Kh6 Bd4 Rf5 Bg7+ Kg6 Qh4 Qg5 d8Q Qd2 d7 Ra8 Qhe7 Ra6 Nef6 Kg5 Qd6 Ra8 Q8e7 Ra6 d8N Bd7 Qdd5 Ra7 Nb7 Ra8 Nd6 Ra7 Ka4 Ra8 Nde8 Nc4+ Qa5 Ne3 Ka3 Na6 Qac5 Nc7+ Ba4 Ra5 Qcd6 Rad5 Bc6 Rc5 Ng8+
N4BK1/3bpr2/1RbbB2Q/4Q2Q/P2k2nn/2Rb1bBN/1n5q/Q3Q1rB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 h5 f4 b5 a4 c6 g4 b3 d4+ Kb4 f6 b2 d6 c5 f7 h4 g6 h3 f5 h2 g7 c4 g5 c3 d7 c2 Ke6 Ra5 f6 Ba6 d5 Kc5 g6 b4 d6 b3 Ra3 Qb6 d8Q Rh4 Qe8 Rb4 Bg2 Nh6 g8Q Nf5 g7 Qc7 d7 Bb7 d8Q Rf4 Nh3 Nc6 Nd2 b1B Qe1 b2 Qh8 Ne5 g8B Nh4 Qb8 Ng4 Rc3+ Kd4 Nc4 Bf3 Nb6 Rg5 Na8 Bg7 f8Q Rg6 Rg1 h1B Kf7 Bh6 Bd2 c1N Qeb5 Bg5 Qfh6 Nd3 Q8g7 Rf5 Bf4 Qe5 Bh2 Bf4 Bg3 Bc6 Bd5 Bf3 Kf8 Qc7 Bge6 Bd6 Kg8 Bc2 Rh1 b1B f7+ Rff6 f8B Nb2 Be4 Bd3 Qbh5 Bdb5 Rh2 B1d3 Rd2 Bd7 Rd1 Bbc6 Rb1 Nd1 Rb6 Nb2 Qhc1 Rg5 Qgg6 Rf7 Qa1 Re5 B4d5 Re2 Qgh6 Rg2 Qa7 Rg1 Qa5 Bb4 Be4 Qf4 Qab5 Bd6 Qbg5 Qd2 Qa5 Qh2 B4d5 Bd1 Bh1 Bdf3 Qae5+
1KBbrQ2/Q1p3Nr/N7/1bPNNn2/3k4/1B4rq/1nrB1n1r/NR3B1R b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 Kd2 Ke7 Kc3 h5 Kb4 a5+ Kc5 d5 f4 a4 b4 a3 c4 d4 g4 a2 e6 Kf6+ e7 d3 g5+ Kg7 g6 Kf6 b6 d2 b5 h3 g7 h2 b7 h4 b6 h3 Nc3 Rh4 Nd5+ Kf7 f6 Ke6 f7 Nd7+ Kc6 Ndf6 e8B Nd7 b8N Be7 f8N+ Kf5 b7 Ke4 c5 Nb6 f5 Na4 f6 Rh7 f7 Nh6 g8B Nb2 Rb1 a1R Ne2 R1a3 Nbd7 Nf5 b8N Rg3 Ne5 Bd7+ Kb7 Bb5 Ne6 Qd7 f8Q Bd8 Na6 Rc8 Qe1 d1N Qa5 Nf2 Ng7 Ra8 Bd2 Rc8 Nef4 Kd4 Ne3 Qe6 Nfd5 Ra8 Rg1 h1R Bd7 Rh2 Bc8 Rhg2 Rh1 h2 Qb6 Qh6 Qa7 Qh3 Rg1 h1R Nc2+ Ke4 Bf7 Rhh2 Na1 Kd4 Rh1 Nfd1 Bb4 Rc2 Bd2 Nf2 Nb6 Rh5 Bb3 Rh7 Nd5 Bh4 Bd7 Re8 Bc8 Bd8 Kb8
4Q1rb/bB3Q2/1q1r1nr1/3pN2b/5KNP/nnB2R2/B4Nk1/bRN1N1B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 h4 Ke5 c4 g5 b4 a5 b6 d5 h6 e6 b7 d3 f6 d2 c5 a4 b5 a3 b6 a2 h7 Be7 f7 Bf8 c6 Na6 b8N Qe8 c7 Ba3 f8N Ne7 b7 Qd8 Qe1+ Kd4 Nbd7 d1N b8N g4+ Kf4 g3 Nc5 g2 Nd2 Rg8 h8B+ Rg7 Bc4 Bb2 Nbd7 Ng8 Nf6 Ne3 Rb1 a1B Ba2 Rg6 Rh3 Nc4 N8d7 Na3 Nce4 Nc5 Ne5 Nb3 Nfg4 Nf6 Rf3 Qd6 Qe2 Qb6 Bg7 Bd7 c8B Be8 Bb7 Bf7 Qb5 Rg8 Qe8 Bc3 Ndc4 Bcb2 Nd3 Bc3 Nce5 Bcb2 Nh3 g1B Ne1 Bc3 Nc5 Bcb2 Ne5d3 Bc3 Nd7 e5+ Kf5 e4 N7e5 e3 Kf4 e2 Bh8 Bcb2 Be3+ Kc3 Bd4+ Kd2 Nc1 Kd1 Ne1d3 e1R Bg7 Re3 Ne1 Rg5 Bc3 Bh5 Bf8 Re2 Bc5 R5g6 Nf7 Nd2 B3b4 Nd7 Rd3 Qc6 Kf5 Bh2 f4 Bh8 Bg1 Qb6 Bc3 Ree6 Rf3 Nb3 Rb2 Qa5 Rb1 Bg3 Nfe5 Bf2 Bb2 Ba7 Nhf2+ Kd2 Bd4 Rd6 Bb2 Qb6 Bd4 Rge6 Bb2 Bg6+ Kg5 Rf6 f5 Bh5+ Kf4 Rh6 f6 Rhg6 f7 Nf6 Nh3 Kd1 f8Q Kd2 Qff7 Kd1 Ncd3+ Ke2 Nhf2 Kf1 Bd4 Nc5 Nc1 Nb3 Ne1d3 Kg2 Bb2 Re6 Bc3 Rd6 Ne1+
n1QB2n1/N1r5/pQRn1R2/2B3rn/1qNK3b/3BRb2/2RPBbr1/R5k1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 g4 Kg5 b4 Kf4 f6 h5 g5 c5 g6 e5 d6 h3 f7 h2 d7 a6 b6 h4 b5 h3 b7 Qa5 d8B Bh6 b6 Nd7 b8R Bg5 b7 Qb4 g7 Rh5 Na3 Bh4 Qc2 Nb6 Nb5 Bg4 Rc8 Bf3 b8Q Rg5 f8R+ Kg4 Ke3 c4 Bd3 e4 Ba3 c3 Rf6 Ra7 Qd6 Na8 Qb6 Rc7 Qc1 c2 Na7 Qb3 Kd4 e3 Rc6 e2 Bc5 e1B Ra3 Qb5 Be2 Qa5 Re3 Qa3 Qcb1 c1R Qc2 Qb4+ Qc4 Ra1 Bd3 Kf4 Be2 Ra5 Bd3 Rg2 Be2 Ne7 g8B Rb5 Bh7 Ng8 Bhd3 Ra5 Bf8 Rag5 Bfe7 Bg4 f3 Kg3 f4+ Kf2 Nf3 Bh5 Ne5 Bf3 Rg1 h1N f5 h2 f6 Ng3 f7 h1N f8R Nh5 Bc5 N1g3 Rff6 Ne4 Rh1 Nd6 Rg1 Qa3 Qe6 Qb4+ Nc4 Kg3 Qd7 Bf2 Ra1 Kh2 Qe6 Re7 R8c7 Reg7 Qc8 Re7 Ra4 Kg1 Ra1+ Qb1 Rb7 Ne8 Qa5 Nd6 Rb2 Rh7 Rc2 Rc7 Bd1 Qb5 Qb6 Qb4 B1e2+
2Qr4/6p1/4b2B/r1B1Bn2/RB1Rq1Qb/n1r1RB1R/P2K1nr1/N3Nk1b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 d4 e5 d6 c5 d7 b5 d5 e4 d6 c4 h6 e3 h7 b3 h5 b4 h6 e2 Bg2 c3 Rh4 b2 Bf3 b3 Na3 b1N Nc2 Qe8 d8B+ Be7 d7 b2 Bc7 Na6 d8R Na3 Rd4 b1B Bd2 Nc5 Be5+ Kf7 f6 Ke6 f7 Kf5 f8B Ra5 Be3 Ne4 Rg4 Bf6 Bc5 Ne7 Bd2 Rf8 h8R Nf2 h7 Be6 Bc1 Qa8 Bb4 Rd8 Re8 Rb8 h8Q Qe4 Rh4 Rd8 Rh3 Rdd5 Ra8 Bh4 Qc8 Rd8 Be3 Rad5 Ra4 Ra5 Bh1 Kg4 f5 Bf6 Bc5 Bh4 f6 Nf5 f7 Bf6 f8B Bh4 Nb4 c2 Kd2 c1R Nf3 e1R Nc2 Rg1 Bh6 Rg2 Qg1 Rb5 Nfe1 Ra5 Nb4 Bd3 Nbc2 Bdc4 Bb4 Bcd5 Bfc5 Bc6 Rb1 Bb7 Na1 Rc3 Re3 Bbd5 Rb3 Bb7 Bg3 Kh3 Be5+ Rg3 Bf3 Rg2 Qf1 Bc6 Qe2 Bb7 Bf6 Kh2 Be5+ Kg1 Bh5 Ba8 Qg4 Kf1 Rh3 Rc1 Rbg3 Rc3 Re3 Qb1 Be8 Rg1 Bh5 Bh1 Qf4 Rg2 Bf3 Qe4 Qg4
5Qrb/1QN1Pk2/2bKbN2/1Q6/1RQ4q/1BR1B2B/rp2n1QB/3nrrn1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 b5 Kg3 f5 Kf4 c5 a4 c4 e4 c3 h4 c2 d4 b3 a5 b4 h6 g6 h7 b2 e6 b3 Ke5 f4 a6 g5 h5 g4 a7 g3 h6 g2 e7 f3 d6 f2 d7+ Kf7 e8B+ Ke7 d5 Qa5 Rh3 Qb5 Ne2 g1R Nf4 Qb7 Qh5 Qa6 Ne6 Qb6 Ra4 Qc6 Bf7 Qb5 d8B+ Kd7 Nc3 b1N Rb4 b2 Be3 c1R Nc7 Qe2 d6 Ne7 N3d5 Rhg8 h8Q Nf5 h7 Qe1 Qg7 Nd2 Qg2 Bg7+ Bf6 Bb7 h8Q Bc6 Qe2 Rd1 Qhh5 Bh8 Qc4 Rb1 Bg7 Kd8 d7 Nf3+ Ke6 Rh1 e5 Ng1 Nf6 Ra1 Be2 f1B Bg4 Qh4 Bgh6 Re1 Bhf4 Be2 Bh2 Bd1 Rg3 Bb3 Bh3 Rf1 Bb6 Re1 Rc3 Ne3 Kd6 Nd1 e6 Rf1 Qhb5 Ba2 Ke5 Ke7 Be3 Kf8 Kd6 Bb3 Bg5 Kg7 e7 Ba2 Qce4 Be6 d8Q Re1 Qec4 Rf1 Bg6 Re1 Bb1 Kf7 Ba2 Nf3 Bd2 Bcd5 Qbd7 Rhf1 Qa4 Ng1 Qab5 Nc6 Bb3 Nd4 Bc1 Bc6 Be3 Rb8 a8Q Nde2 Qaa6 Ra8 Qab7 Ra2 Qf8+
b1NQ2nb/2p2Q1r/3NrR2/1BB2B1n/B2P1qn1/b3BN1r/1R2N3/1K3k1b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 b4 Ke5 d4+ Kd6 Kd2 h5 Kc2 a5 g6 f5 b6 h4 e5+ Kd7 g7 a4 d6 Kc6 b5+ Kd5 e6 Ke4 e7 h3 e8B f3 d7 a3 g5 f4 b7 f2 b6 h2 g6 a2 Ne2 Kf3 Nd2+ Ke3 Rb1 a1B Rb2 f3 Kb1 Qg5 d8N Rh7 Ba4 Qf4 Nf7 Nc6 b8Q Bb7 Nd6 Ra6 Qd8 Ba8 b7 Ne5 b8B Ng4 Ba7 Be7 Qc2 Bf6 Qf5 Rc6 Rg1 h1B Bc5 Rb6 Bh3 f1N Qh5 f2 Nf3+ Kd3 Be3 Ng3 Rf1 Ra6 Qd5 Nh5 Qf7 Rb6 Nc8 Re6 Nd6 Ne7 g8N Bh8 Ra2 Bc3 g7 Bb4 Rc2 Ba3 Rb2 Nd5 Ne7 Ndf6 Nec8 Ng8 Rc1 f1R Re1 Ne7 g8B Rf2 Rg1 Rh2 Bf1 Rh3 Rg3 Nh2 Rg6 Ng4 Rf6 Qe4 Bh6 Qf4 Bg5 Ke3 Bh6 Kf2 Bg5 Rh6 Bh7 Ng8 Bf5 Rh7 Ng3+ Qd2 Bfb5 Kg2 Ne2 Qf4 Bh6 Kf1 Bg5 Qe5 Bc1 Qf4 Be3
1N1Q1Q1n/PBRN1bKb/4r3/2nB4/5Qp1/BrQ1n1kn/1b1B4/QqR1r3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 Kg4 b5 Kf5 c5 h4 b3 e4 g4 a4 b4 d4 f6 Kg6 b2 h6 c4 e6+ Kd6 e7 c3 e8B c2 h5 f5 h7 f4 e5+ Ke7 d6+ Ke6 h6 b3 d7 f3 d5+ Ke7 d6+ Ke6 a5 f2 a6 Qb6 d8B Qc5 a7 Qe3 d7 Bc5 Qd4 Qd3+ Kg7 Kf5 e6 Ne7 Nf3 Ba3 Bf7 Ng6 e7 Na6 e8Q Nc5 Nc3 b1B Nb5 b2 Be7 Qd1 d8Q Rb8 Qf8 Be6 Bd2 c1N Bg2 f1N Nc7 Ne2 Ne5 Ng1 Na6 Nh3 Nd7 Rb3 Nab8 Ne3 Bb7 Bc4 Qc3 Kf4 Bfd5+ Kg3 Qf7 Re8 h8Q Qc2 Qhf8 Nh8 Rc1 Qd1 Qf1 Bh7 Rc2 Qe1 Rac1 b1R Q1f7 Bb2 Qf5 Nd3 Ba3 Nc5 Qe4 Re6 Qed4 Bg8 h7 Bd3 Qe4 Bf7 Qa4 Ng6 h8Q Ra1 Qh5 Nh8 Qh6 Bh7 Qaa5 Qh1 Qa4 Qe4 Qf4+ Kg2 Rd1 Ng6 Bb4 Nd3 Qcf6 Nh8 Rc7 Nc5 Qc3 Rc1 Qa1 Rb1 Qfg5 Kg3 Ba3 Rc1 Rf1 Qb1 Qgf6 Re1 Qh6 Re2 Rc1 Re1 Qf4+
2b1N2n/qb4b1/2rQ4/Pbk1B2Q/3qQ2R/nBrBB3/R2Qp3/2NQK2b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 Kd6 d4 b5 g4 e5 g6 c5 f6 h5 f5 c4 g7 c3 f7 h4 g5 e4 f6 b3 g6 h3 a5 b4 Qh5 b2 Ne2 c2 Nbc3 b1B Be3 h2 Nc1 b3 Ra2 b2 Bd3 Nh6 g8Q Ra6 g7 Rc6 Qh7 Nd7 g8B Bg7 f8Q+ Qe7 f7 Ne5 Q7f5 Nc4 Qff3 Na3 Nb5+ Kd7 Nc7 Kd6 Qe8 Rc3 f8B Nf7 Qfg4 Rh6 Qd1 Nh8 Qeg6+ Kd7 d6 Kc6 Ne8 Qa7 Bb3 Bb7 Bf2 e3 d5+ Kc5 Qe4 Re6 Bg3 e2 d7+ Rd6 d8Q Bc8 Rg1 h1B Be5 Bb7 Be7 Bc8 Bg5 Rc6 d6 Bb7 Ra1 Ba2 d7 b1B Rg4 Bc8 Be6 Bc4 Rh4 Bb5 Bb3 Ba2 Qc7 Bb1 d8Q Bb7 Na2 c1Q Bh6 Qb2 Nc1 Bc8 Ra2 Bc2 Qdg5 Bb7 Qgd2 Bc8 Bbc4 Bb3 Bf7 Bd5 Bg5 Qb4 Be3+ Qd4 Qb8 Re6 Bg8 Bdb7 Qc7+ Rc6 Bb3 Kb4 Qd8 Kc5 Qd6+
bQqN1q2/1rn2N2/k3R2p/2n1PB2/1R4n1/4b3/n1RB1rNN/NQ1K1nR1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 g4 a5 b4 c5 d4 Kc7 g6 Kb7 d6 f5 d7 h6 b6 a4 g7 f3 e5 c4 d5 f4 g5 a3 d6 a2 b5 c3 g6 c2 Ne2 Ra5 Bd2 c1N Rh2 Qc7 d8N+ Ka8 b7+ Ka7 b6+ Ka6 d7 Nf6 g8N Ne8 g7 Rh7 Nf6 Bc5 g8R Be3 Ng4 Nf6 Bh3 Qc3 Qb3 f2+ Kd1 f1N Re8 f3 Nf7 f2 d8N Ra4 Re7 Rf4 Na3 Bd7 Nc2 Bc6 Rb1 a1N Re6 Na2 Qb4 Nb3 Na1 Rf5 Nf4 Nc5 Ng2 Bd5 Rc1 Qc4 Rh1 Be4 Nh2 Ng4 Rc2 Rf4 Rf6 Qe6 Qb2 Qc8 Qb1 Nbd7 b8Q Ne6 b7 Ng3 Nd6 f1Q+ Be1 Ndc5 Rg1 Qf2 Rg6 Nf1 Bd2 Nf6 Qc7 Rd7 b8R Ba8 Rbb2 Rg7 Qb8 Rb7 Rb4 Nc7 Be6 Ng4 Bd7 Rf8 Be6 Qf7 Bd7 Qg8 Be6 Rf3 Bf5 Qf8 Re6 Rf2 N6f7+
3N4/rQR1K1Q1/n4pRQ/Q4B2/2nBQ1PR/1b4N1/2knq1qR/3n1nbr b - - 0 1 illegal: No possible last move, all moves rejected
1Q1Q2n1/2NnqP1B/K1kp1qbr/1NrN2q1/B1B4b/5q2/5BNB/Rq1R4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 e5 Kc4 h5 b4 e4 g4 a4 f4 d3 g6 h4 g5 e3 b6 e2 Kb5 e1Q c4 a3 c5 d2 f6 a2 g7 h3 f7+ Ke7 f5 h2 f6+ Ke6 g6 Kd5 c6 Rh4 b7 Qe5 c7 Qg5 Nh3 Qe5 Nc3+ Kd6+ Nd5 Qe6 Bc4 Qe1 Nhf4 Qe3 Ng2 Na6 b8Q Bb7 c8N+ Ke6 Nd6 Be7 f8N+ Ke5 Ne6 Qg5 Nec7 Nc5 Kb6 Bc8 b5 Rh6 Bb3 Bb7 Ba4 Ra5 Rg1 h1Q Ba3 Ne6 Bc5 Nf8 Bf2 Qh3 Rh1 Qf3 Rf1 Ba6 Ka7 Qe8 b6 Rc5 b7 Bd3 Ndb5 Bd8 Ka6 Qe7 Qb1 Be4 Qd3 d1Q Qd2 Qb1 Rd1 Bf5 f7 Nf6 g8B Ke4 g7 Bg6 Bh7 Ng8 Na7 Ke5 Qd4+ Kd6 Nab5+ Kc6 Qh4 Bh5 Bd3 Bg6 Bc4 Qbe4 Rab1 a1Q Rbc1 Qae5 Ra1 Qb1 Qd4 Nf6 g8B Q5d6 Bh7 Ng8 Qa7 Qdf6 b8B Qee2 Ne8 Qee7 Bh2 d6 Qh4 Nd7 Qb8 Ba5 Nec7 Bc3 Re1 Be5 Rd1 Bg3 Qe4 Bh4 Qg4 Nb6 Qgc8 Nd7 Qd8
N4r1Q/rqBB1B2/5R2/6b1/2BKn1b1/1NR1r1QR/1pP1q2R/kbr1R2n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Ke3 Kf6 h4 Ke5 a4 g5 f6 d5 h6 b5 h7 g4 c6 e6 h5 b3 c7 g3 a5 g2 f7 b4 a6 b2 a7 b3 h6 Na6 Rh3 Nf6 Na3 b1B Nb5 Qe7 Qe1 Ne4 Bc4 Nac5 Ne2 g1R Ned4 Ng3 f3 Rg8 h8R Nh1 h7 Ne4 Qh4 Bd7 c8B Bh6+ Kd3 Bd2 f8R Bg5 Rf6 Rf8 Nc7 Qg7 Bd2 Rc1 Ba5 Qe7 Qe1 Qb4 Qh4 Qb7 Qg4 b2 f4+ Kd6 f5 Kc5 Rh2 e5 Qg3 Be6 Bb6+ Kb4 Nb3 d4 Rh3 Bd7 Rc6 Be6 f6 Bg4 f7 Bd1 Ra6 Bg4 Ba5+ Ka3 Bd7 Ka2 Rab6 Rfe8 f8R Re7 Rf4 Rf8 a8B Ref7 Rff6 Rg7 Nc5+ Ka1 Rce6 Re7 Rb3 Ref7 Rc3 Re7 Bb3 Ref7 Kc4 d3 Bb6 d2 Ba2 Qb8 Bd5 d1Q Na8 Qb7 Bc7 Qf3 Re8 Rg7 Bf7 Qe2+ Qd3 Nef2 Rh2 e4 Kd4 e3 Bac4 Ne4 Ree6 Qe1 Re8 e2 Qg3 Qf1 Ree6 e1R Re5 Re3 Nb3+ Ka2 Ref5 Qe2 Rf1 Rg6 Re1 Rh6 Rf4 Ra6 Rf6 Ra3 Rg8 Ra5 h8Q Ra7 Rg7 Qf1 Rgh7 Qe2 Nd2+ Ka1 R7h4 Qf3 R4h3 Qe2 Nb3+
1Kb1RRnr/R1r1Nk1N/N1Bbqbn1/1R5N/1Q1BRn2/1pb5/q1Q1P3/8 b - - 0 1 illegal: No possible last move, all moves rejected
r1Q1NQR1/3R3n/3Qq1kb/NN1B1br1/6P1/2B4r/K2nQp1q/1QNq1r2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 c5 e4 f5 b4 Kf7 d4 a5 Kd2 h5 Kc2 h4 Kb2 f3 d6 f4 d7 f2 e5 f3 b6 h3 e6+ Kg7 b7 a4 e7 c4 d5 h2 g6 Qa5 d8Q Ra6 b5 Qb6 d6 Qa7 b6 Ra5 d7 Na6 b8N Nc5 b7 Nf6 Ne2 Qa6 Nbc3 Nce4 Nc6 Rg5 b8Q Rh3 Bg2 f1R Bd2 f2 Be1 Kh6 g7 Nh7 g8Q Bg7 Ka3 Rg1 Qbb1 Qb6 Bf3 Qa6 Ra2 Kg6 Rc2 Qb6 Nb5 Qa6 Bb4 Re1 Rf1 h1Q Qb6 Qg2 d8Q Qh2 Q1d3 Rc1 Rd1 Bf5 Qbe3 Qc8 Rcd2 Qd7 Qc8 Qe6 Qh8 Bh6 Qf4 Kf7 Qde3 Kg6 Rd8 Rgh5 Bg2 Rg5 R1d7 Rf1 Qd6 Nd2 Kb2 a3+ Ka1 a2 Bd5 Rh1 Rf8 Rc1 e8N Rf1 Kb2 a1R Qed3 Ra6 Na5 Ra7 Ka2 Ra8 Qf3 Be4 Qhe5 Bd3 Rh8 Be4 Qff8 Bf5 Qe1 c3 Rg8+ Bg7 Qe4 c2 Qb1 c1Q Bc3 Qe1 Nc1 Qd1 Rh8 Bh6 Qec4 Rg3 Qe2 Rh3 Rg8+
1r2qn1b/2rQ1R2/bk2B3/1N5K/2N1p2B/1R1BqNN1/Q2PBb1b/Nn3q2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 g4 c5 f4 Kc7 b4 h5 f5 a5 d6+ Kb7 b6 e5 b5 e3 Kf3 e2 g6 e1B f6 a4 f7 h4 g7 c4 d7 h3 g5 c3 Kg4 e4 g6 c2 Nf3 a3 Be2 a2 Bb2 c1B Nc3 h2 Qc2 Rh5 Rb1 a1Q Rf1 Bb4 f8N h1Q Ne6 Ra7 Nc7 Ne7 g8B Rc5 g7 Na6 Bgc4 Qh7 g8B Qa5 Bge6 Qa1 Bcd3 Qf8 d8Q Rc4 Qd7 Qhg7+ Kh5 Qd4 Qb3 Ra8 Qa2 Ba5 Ba3 Rc6 Rb3 Nd5 Be7 Nc5 Bh4 Qe3 Rf2 Bb2 Rf1 Kb8 b7 Ka7 b8N Kb6 Nba6 Rb8 Nb4 Ba6 Nc2 Bg3 Rf2 Qf1 Na1 Qd8 Kg4 Bh2 Kh5 Kb7 b6 Qe8+ Qf7 Nd7 N7b5 Qg2 Rf1 Rc7 Rf2 Kc6 b7 Nf8 Rf1 Bb6 Rf2 Rbc8 b8N+ Kc5 Nc6 Qf1 Nce5 Rb8 Nc4 Ba7 Nd1 Bh8 Ndc3 Bb6 Nbd4 Ba7 Ncb5 Nc3 Nf5 Nb1 Ng3 Bb6 Kg4 Ba7 Qd7 Bb6 Ne1 Ba7 Rf7 Bb6 Kh5 Ba7 Ncd6 Kb6 Nf3 Qeg1 Kg5 Kc5 Qc8 Kc6 Nc4 Bc5 Nca3 Kb6 Qd7 Qd4 Kh5 Qdf2 Ng5 Qf4 Nf3 Bf2 Qe7 Qe3 Nc4+ Kc6 Qd7+ Kc5 Ncd6 Kb6 Nc4+
2B1r2N/5K2/RbbrR3/b1B2P1k/pB1q4/1QqR4/5nbr/1BQNR1nR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 e5 Ke4 h5 f4 a5 g4 c5 b4 c4 d4 c3 g5 c2 f6 Kg6 b6 a4 b5 h3 f5+ Kf7 b7 h2 b6 h4 d6 h3 Kd5 e4 g6+ Ke8 g7 Kf7 d7 e3 Nc3 e2 Ba3 c1Q Bc5 e1B Nf3 Ra5 Ba6 Qf4 Nh4 Bf2 Ng6 Qe7 d8R Nh6 Re8 Qe1 Re6 Bd7 Qc1 Ng4 Nd1 Nc6 b8R Nce5 b7 Qc3 Ra8 Nf3 b8Q Ng1 Bc8 Ra6 Qb3 Bd6 Bb4 Re8 Nh8+ Kg8 f7+ Kh7 f8B Bc7 Bfd6 Ba5 Bdc5 Qfd2 Rb1 Bc6+ Kd6 Qdd3 d5 Qdd4 g8B+ Kg7 Bf7 Be3 Ra7 Nf2 Ra8 Rb6 Ra6 Kh7 Re7 Kh6 Ke6 Kg5 d6 Kh4 Bg8 Kh5 d7 Bg2+ Kf7 Rd6 d8R Bb6 Qe6 Rd7 Nb2 Bh6 Qc2 Nd1 Ba3 Nf2 Re1 Bd2 Nd1 Qa1 Qea2 Qab2 Ke6 Qc1 Qd5 Bda5 Bab4 Qdf4 Qdc4 Qa3 Qc1 Rd3 Qa2 Qc3 Qaa3 Rd4 Kf6 Qfe3 Ba2 Bc6 Kf7 Qe4 Rd5 Rd2 Rde5 Rd6 Qb3 Qed3 Bb1 Qdd4 R7e6 Nf3 Rhf1 h1B Ba2 h2 Rg1 Bg2 R5e3 h1R Rd3 Rh2 Rh1 Ng1 Bb1
r3R3/1q2N3/4K2R/n2r1p1b/2B1bPq1/nQNqQ1Q1/1N1B2Q1/Qnk3Nn b - - 0 1 illegal: No possible last move, all moves rejected
1rnq2Q1/2B5/KN1QrR1Q/2pr4/2Bn2Qr/b1kPqb1R/1N1B1b2/4B1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
n1R3rQ/2R1nb1B/N1r2B1b/1P1k4/4R1N1/rb2qRBK/Rq2pb2/1Q5B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 Kg2 a5 d4 e5 g5 e4 b6 c4 b7 c3 f6 a4 b5 e3 f7 c2 f5 a3 g6 a2 g7 e2 f6 Rh6 Na3 Ra6 Bb2 c1R Nf3 Rc2 Ne5 Rh7 Ng4 Rc7 Nc2 Qd7 Kh3 Qe7 Nb4 Be6 Bg2 Nd7 b8B Rh8 Qb1 Nb6 Rc1 Na8 Bh1 Ra3+ Rc3 Qe8 Na6 Ne7 g8B Bh6 f8Q Bf7 Bh7 Rg8 Qg7 Nc6 Rf3 Qe3 Qh8 Ne7 Bc3 Kd7 d6 Ke6 d7 Rc6 Bg3 Kd5 Kh2 h3 d8R+ Rd6 Rb8 h4 Rb7 Rc6 Rc7 Qf4 Kg1 h2+ Kg2 Qe4 Kh3 Qe3 Bg2 h1B Bb2 Bg6 f7 Bc2 f8R Bb3 Kh2 h3 R8f4 Rc4 Re4 Rc3 Be5 Rc6 Kg3 h2 Kh3 Rf8 Bg3 Rg8 Nb8 Kc4 d5+ Kc5 d6 Kd5 Bf1 Bg2+ Kh4 Bh3 d7 h1Q Bg2 Qhc1 Bf6 Qb2 Bh1 Bg2 Na6 Bh3 Ne5 Be6 Ng4 Bf7 d8R+ Rd6 Rdc8 Rb6 Qe1 Rc6 Rc1 a1B Rc2 Qb1 Qf1 Bd4 Kh3 Qb2 Qb1 Qec1 Qa2 Bf2 Qb1 Qe3 Rd2+ Qbd4 Ra2 Qdd2 Rb4 Qb2 Re4
b4qn1/R1kNQ2R/1bN5/1P1rNpB1/1nB1Nr2/Bb2r1BN/2Qq4/b6K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 a5 h4 g5 e4 f5 b4 c5 d4 c4 h6 a4 e5 c3 h7 g4 d6 a3 b6 g3 b5 a2 e6+ Ke8 h5 c2 h6 Na6 d5 Qc7 d7+ Kd8 b7 Be7 b8N Qd6 Nd2 Nf6 Ne4 Kc7 d8N Nb4 Nd7 Ra3 Nc6 Rd8 h8B Re3 h7 Bb7 Nh3 Ba8 Ba3 c1Q Qc2 Ng8 Be5 f3+ Kg1 g2 h8N Bf8 e7 Qd2 e8Q f2+ Kh2 g1R Bc4 Rb1 Qe7 Rf1 Nf7 Bg7 Bf4 Bd4 Nfe5 Bb6 Bg3 Qh6 Kg2 Qf8 Kh2 Rfe1 Kg2 f1B+ Kg1 Be2+ Kh2 Rf1 d6+ Kb7 Kg2 Rf4 Rh2 Bd1+ Kh1 Qd5 Ng1 Qd2 Rh7 Bh5 Nh3 Bf7 Ndb8+ Kc8 d7+ Kb7 Be2 Bb3 Bc4 Re8 d8B+ Kc8 Rb1 a1B Nbd7 Rd3 Rb2 Rd5 Ra2 Kb7 Qf7 Re6 Bg5 Kc7 Qe7 Rd3 Rh5 Re3 Rh7 Rd6 Bc1 Rdd3 Ra4 Rd6 Ba3 Rd5 Ra7+
RBn2BR1/5bNr/1q2BKQp/1krq4/1b3n2/1P1rN3/B1Q1Q3/r1qQ1Q2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Qb3 e5 Kd3 a5 Ke4 c5 f4 a4 d4 a3 g4 h3 f6 a2 Kf5 h6 g5 h2 b6 c4 d6 Kc6+ d7 e4 f7 e3 g6 e2 g7 e1R b7 c3 d5+ Kc5 d6 c2 Nc3 Re8 Bc4 Be7 f8Q Ra6 Nf3 Nf6 g8B Nc6 b8B Qc7 Nd1 Nh5 Qf7 Ra5 Nh4 Nb4 Ne3 Nf6 Rg1 Bb7 d8Q h1R d7 Na6 Qd3 Rh7 Qc8 Bg2 d8Q Nb4 Qe2 Nd7 Kg6 Bf3 f5 Nb6 f6 Nd3 Nhf5 Bd5 Qfe6 Qc6 f7 Ra3 Qcc7 Nc8 f8Q Kb4 Rg2 Qb6 Bd2+ Ka4 Bb4 Rf1 Bb3+ Kb5 Qf7 Rb1 Bd6 c1Q Qcc2 Bf8 Qe4 Re7 Q4f3 Qh1 Qff1 Rc7 Kf6 Rc4 Rg7 Nf4 Qg6 Qe4 Bf7 Rd1 Rg8 Rd2 Re1 a1Q Ng7 Rd4 Rd1 Ra5 Rd3 Qc1 Rc3 Ra1 Ba2 Qd3 Ra3 Rc6 b3 Bc4 Be8 Bf7 Bd7 Rd5 Be6 Rc7 Be5 Bb4 Bd6 Rcc5 Ra8 Qc4 Bf8 Rd1 Qdd3 Rd2 Qdc3 Rd3 Qce1 Qd5 Q1d1
Q1q2R2/2R4n/BNR1RBPN/b1R2pNK/4Q3/N1q1k1bb/4nn2/2r2n1r b - - 0 1 illegal: No possible last move, all moves rejected
4R2r/2Q1n3/bk2NrpQ/2N2rqR/b2N2nN/B3r1P1/Qbq1B3/N2QK3 b - - 0 1 legal: proof: e4 d5 a4 b5 axb5 f5 exf5 Qd6 c4 Qg3 cxd5 Qxh2 d4 Kd7 b4 c5 f4 Kc7 b6+ Kb7 g3 h5 f6 e5 f7 a5 d6 c4 b5 c3 f5 c2 d5 e4 f6 h4 d7 h3 d8Q g6 d6 a4 d7 a3 Nf3 e3 Be2 a2 Na3 Bg7 f8N Ra7 f7 Ra5 Ne6 Nf6 f8Q Qg2 Nh4 h2 Nd4 Ng4 Qf7 Qd5 Qg5 Nc6 Qh6 Qg5 Qf2 Ne7 d8N+ Kb8 b7 Kc7 b8N Kb6 Qf7 Ba6 N8e6 Bf6 Bb2 c1Q Nac2 Be5 Rb1 a1R Ba3 Ra2 Na1 Qc2 Rb4 Rb2 Qg8 Rb3 Rc4 Rc3 Rc8 Rc6 Re8 Rd6 Nc5 Rf6 Nde6 Bd4 Nc6 Bb2 Rg1 h1B Ncd4 Bc6 Rf1 Bd5 Rf5 Bb3 Re5 Qf4 Rh5 Qg5 Nf8 Ba4 Qa2 Nf5 Nfe6 Ne7 Nd3 Kb7 b6 Raf5 Ndb3 Kc6 b7 Kb5 Ndc5+ Kb6 Bc4 e2 b8Q+ Bb7 Qf4 Ba6 Nbd4 Qb3 Kd2 e1R Bd3 Re3 Be2 Qc4 Ke1 Qc2 Qc7#
bQ1N1Q2/2r5/1qbq1PQ1/n1b1nK1p/Q3R3/nR2Q2r/3N2Bn/1N1NB1k1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 f4 e5 d4+ Kb4 g4 h5 b6 a5 d6 c5 f6 a4 b7 h3 f5 a3 d7 c4 f7 a2 f6 h2 g5 c3 d5 Kc5 g6 c2 d6 Ra3 g7 Nh6 g8N Ng4 Kf5 e4 Nh6 e3 Nf3 e2 Bd2 e1Q Bg2 c1N Qa4 Qd1 Re1 h1B Re4 Qb6 Be1 Rh7 Nfd2 Nc6 b8Q Rh3 Qba7 Nh2 Ng4 Nb3 Ne3 Bb7 d8N Ba8 d7 Nba5 b3 Be7 f8Q Ne5 Qf7 Bd6 Qg6 Rg7 Nc2 Kd5 b4 Bc5 b5 Rf7 Nc6 Rh7 d8Q+ Rd7 Qf8 Rc7 Nd8 Bc6 Nba3 Ba8 Rc1 a1N Rb1 Bc6 Rb3 Ba8 Nd4 Nc2 Nab1 Na3 Ne2 Bc6 Nc1 Ba8 Nd3 Bc6 Nf2 Ba8 Nc4 Qd4 Ncd2 Qb4 Re2+ Kd4 Nd1 Qd6 b6 Bc6 Rb2 Kd3 b7 Qb6 b8Q Ba8 Bb7 Bd5 Re4 Bc6 Rf4 Ke2 Rb3 Bb5 Bh1 Bbc6 Re4+ Re3 Nc4 Kf1 Bg2+ Kg1 Ncd2 Rh3 Qa6 Nhg4 Qd3 Nh2 Qe3+
3RR1r1/1qbBb2r/kRn2p2/N2B1Pn1/R5R1/Q3B1rr/2B1nNq1/3K1Q2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Bb7 Ra1 c4 d3 Bd5 exd5 cxd3 c4 Kd7 f4 Kc7 g4 Kb6 b4 a5 f5 h5 c5+ Kb7 g6 e5 d6 a4 b6 f6 g7 h4 d7 a3 c6+ Ka6 c7 a2 b7 h3 c8B e4 g5 h2 g6 e3 Na3 e2 Nc4 Qc7 Nh3 Be7 Rg1 h1R Na5 Nh6 g8R Nf7 g7 Rh7 Rg4 Nc6 Be3 Qg3+ Kd2 e1R Nf2 Ng5 d8Q Rb8 Qd6 R1h3 Bg2 Rg1 Be4 Qh2 Qf1 Rgg3 Be6 Rf8 b8R Qg2 Bd7 Re8 Rd8 Rf8 Rc1 a1B Rc4 Bb2 Ke1 d2+ Ke2 d1N Bc2 Re8 Ke1 Nc3 b5+ Kb6 Kd2 Ne2 Qa3 Ka7 b6+ Ka6 b7 d3 b8R Be5 Ra4 Bc7 Bb1 Rf8 Rh8 Re8 g8B Rf8 Bd5 Re8 Kd1 d2 Kc2 d1Q+ Kb2 Rg8 Bc2 Rg6 Rhe8 Rg8 Rb3 Qd4+ Kb1 Qb6 Rb5 Nf4 Kc1 Ne2+ Kd1 Qb7 Rb6+
RN1qN1N1/B5qB/3P1rn1/1B3Qr1/KQ2b3/1R1pNk2/nb3nn1/1B1r1B2 b - - 0 1 illegal: No proof kernel
1R1b1B1B/4r3/1Q1P1nbq/2KBbB2/4RpqR/2nk1Rn1/N2r3Q/1bB4N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 Kd6 d4 f5 b4 a5 h4 g5 h6 c5 e5+ Kd7 h5 a4 e6+ Kd6 h7 a3 h6 g4 b6 f3 Ke3 a2 b7 g3 e7 f2 e8B c4 b5 g2 b6 c3 Qh5 c2 Bc6 Ra7 Nc3 Qh4 Bd3 f1B Rh3 Nd7 b8R Ngf6 b7 Be2 Rf3 Nc5 Nh3 g1Q+ Nf2 Qgg4 Nh1 Na4 Qg6 Rg8 h8B Be7 h7 Rd8 Rb1 a1B Na2 Bf1 Rb4 Nc3 Bg7 Be6 h8B Bf7 Bf8 Qhh3 Be4 Bd3 Qh7 Rd7 Re8 Bg6 b8R Qhh5 Rf4 Qhg5 Qh2 Qh6 Rb3 Kc7 R3b4 Bd8 Rc4 Rb7 d6+ Kb6 Bcd5 Kb5 Re6 Re7 d7 Rb6 Ba8 Rb7 d5 Rb6 Bb7 Rd6 Kd4 Bb2 Rf3 f4 Bf5 Be4 Rcc8 Bd3 Re4 Ba1 Bd2 c1N Rc7 Bb1 Rc6 Ka4 Kc5+ Kb3 Ra6 Ne2 Bc1 Kc2 Ba8 Ba5 d8Q Rdd7 Qb6 Rd6 Qb7 Bd8 Qb6 Bb2 Ra3 Ba1 Rh3 Bb2 Rh5 Kd3 Rh4 Ng3 Rb3 Rdd7 Ra3 Rb7 d6 Ba1 Qc6 Rb2 Qb6 Rd2 Bd5 Bb2 Ra6 Nb5 Raa4 Be5 Rab4 Nc3 Rb2 Rd1 Rf2 Rd2 Rf3+
QKB3r1/3r4/BNp1q1BQ/q2rPRNB/4nB2/N1k2r1n/1b1q3N/6Rb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 d4 a5 e4+ Ke6 b4 f5 g4 h5 d5+ Ke7 e6 Kd6 e7 h4 e8B a4 b6 c3 b7 a3 b5 Kc5 Ke5 Kb4 d6 f4 b6 h3 g6 f3 g5 c2 g7 h2 d7 c6 g6 a2 Na3 f2 Ba6 f1R Nf3 Ne7 Kd6 Rf2 g8B Rh6 e5 Kc3 Bf4 c1R Be6 Rh7 Rg1 h1Q g7 Qh3 Nh2 Rf3 g8B Qh6 Rb1 a1Q Bgf7 Qa2 Qd5 Rd1 Bh5 Qd2 Beg6 Rg7 Bh3 Ra7 Rg5 Rg8 Rf5 Qc7+ Kc5 Qd8 Qe6 Nd5+ Qd6 Qc7 d8N Be6 Nf7 Be7 Ng5 Qd8 Bg3 Nf4 B3g4 Nh3 Bf4 Bd5 Ra1 Bf6 Qf8 Nd7+ Kd6 Qa8 b8N Nc5 b7 Ne4+ Kc7 Be7 Nd7 Bc5 Nb6 Bd4 Bf7 Qe6 Qh6 Re8 Bfg6 Rg8 Bd3 Ra5 b8Q Rc5 Bb5 Qa5 Ba6 Rb5 Kb7 Rc5 Ka8 Rb5 Nbc4 Rb7 Nb6 Rd7 Qbf8 Kb3 Qc8 Bb2 Kb8 Kc3 Qcf8 Bc4 Rb1 Bf1 Ra1 Bg2 Qc8 Bh1 Qd8 Qc2 Rb1 R1d3 Rg1 R3d5 Qc8 Rgg7 Qb7 Qd2 Qa8 Rg8+ Bc8 Rg3 Be2 Rf3 Ba6
1bnBn1r1/8/QPQ1N2R/1Q2B2k/KR4qr/1Q2r2p/1r2N3/BbbBq2Q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 d4 h5 Kd2 a5 Kc2 e5 Kb3 e4 g4 e3 g5 e2 b6 e1B b5 c4+ Ka4 h3 d6 c3 g6+ Kf6 d7 h2 g7 c2 b7 h4 b6 Bc3 d5 Ra7 d6 Bd4 Nc3 Bc5 Nd5+ Kf7 f6 Kg6 f7 Qg5 d8B Qg3 d7 Be3 Bb2 c1R Rb1 Rc2 Be2 Bd6 f8Q Nf6 Ba1 Rb2 Nc7 Rg8 Ne6 Nc6 b8B Bc1 f5+ Kh6 Qe8 Ne7 Qe1 Qg4+ Qb4 Ba6 Bd1 Nc8 Ne2 Bd3 Qc4 Bg3 Be5 Rc7 Qe4 Rc3 Qb4 Be4 Qb5 Re3 Qa6 Rd2 Rb5 Bb1+ Rb4 Rb2 Qb5 Ne4 f6 Ned6 f7 Kh5 Bdf6 Bf4 d8Q Bg3 Qec6 Ne8 f8Q h3 Rf1 h1Q Qdd3 Qg1 Rf2 Qe1 Bd8 Bh2 Qff3 Bf4 Qa6 Bg3 Kb5 a4 Qh1 a3 Rf6 a2 Ka4 Bh2 Bd4 Bc7 Be5 Bb8 Qdb5 Rd2 Rd4 Rf3 Bb2 a1R+ Kb4 Qf5 Bh2 Rh8 Rg4 Ra5 Ba1 Re3 Bg3 Raa2 Rfg6 Rab2+ Ka4 Rf8 Rb4 Rd4 Rf6 Rh4 Bf4 Kg4 Rh6 Qh5 g8Q+ Qg5 Qh8 Rg8 Qhc3 Qh5 Qb3 Qf5 Rg6+ Kh5 Be5 Qg4 Rh6+
K1Q4B/BQ4bR/RP3Q2/Q2n2rp/2N5/Bbq3kr/1NB3n1/b1qr1r1B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 d4 c5 b4 a5 g4 c4 f4 a4 f6 h6 g5 c3 f5 h3 f7 c2 f6 a3 b6 h2 b7 a2 g6 Ra6 b5 Qe8 g7 Ra4 Bb2 c1B Qf3 Nc6 b8B+ Kd7 d6 Ke6 d7 Qd8 Nc3 Na7 Bg2 Ra5 Na4 Qe7 d8Q Nc6 Ba7 Nb4 b6 Ba6 Qa8 Nd3 d5+ Kd6 Qb7 Qc7 Qf5 Nf4 Nf3 Ne7 g8B Bg7 f8Q Qc3 f7 Bc4 Q8c8 Bb3 f8B Be3 Qh5 Bd4 Nd2 Qc1 Bf3 Ng2 Bh7 Rb5 Ba3+ Rc5 Nb2 Qc3 Raf1 a1R Rf2 Rf1 Bg6 Bf6 Bg7 Rh7 Bh8 Bg7 Re2 Qc1 Re1 Qc3 Ra1 Rd1 Re1 h1R Qhf5 Rf1 Re3 Nf4 Bh1 Ng2 Rh3 Qc1 Bb4 Bc3 Ra6 Bd4 Ba3 Bc3 Nd3 Ba1 Nb2 Ng8 Rh2 Nf6+ Kd3 e4+ Kd4 e3 Qg5 e2 Bc2 Ne8+ Ke4 Nc7 Qh5 Ke7 d6+ Kf6 d7 Rg5 Ndc4 Nd5 d8Q+ Ne7 Qd2 Nd5 Qh4 e1Q+ Kd4 Qg3 Kc5 Qh3 Qa5 Qc3 Nd3 Kg6 Kc6 Kf6 Rh3 Kg6 Nb2+ Kf6 Rd3 Kg6 Qf2 Kh5 Qf6 Kh4 Rd4+ Kg3 Re4 Rh5 Re7 Rh3 Rc7 h5 Rd7 Rh6 Rf7 Rg6 Rc7 Rg5 Re7 Bf8 Rh7 Ndf4 Kc7 Nd5+ Kb8 Bg7 Ka8
3Bq3/r1n1qrQ1/1pB1k3/2n5/B3rQb1/2R1N2r/3BNPKB/Rb1Q2bQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kf7 a4 g5 h4 e5 h6 c5 f6 b6 d6 c4 h7 e4 d7 b3 a5 g4 h5 c3 h6 g3 a6 c2 a7 g2 d5 b2 d6 e3 Ne2 g1R Bd2 c1Q Rh3 Qe7 d8B Qe4 d7 Qe8 Na3 b1B Nc2 Na6 Bc7 Nc5 d8B Bg4 Bh2 Ke6 f7 Bd6 f8Q Ne7 Qf4 Qa3 Rf3 Rf8 h8Q Rf7 h7 Rh1 Qg7 Nd5 h8Q Nc7 Qh3 Qb4 Qg2 Qe4 Qg1 Qh7 Bh3 Qh4 Kf1 Qhe7 Kg2 Be5 Nc3 e2 Ne3 e1R Ne2 Rb8 a8B Rb7 Qf1 Ra7 Bc6 Bd6 Nd5 Be5 Rc3 Bd6 Nc1 Re4 Ne3 Bf5 Bg4 Be5 Be2 Bg4 Beb5 Bd6 Ne2 Be5 Bg3 Rh3 Ba4 Bd6 Qfg5 Bf4 Qh1 Be5 Bh4 Bg3 Qf4 Bh2 Bg3 Bg1 Bh2
5N1R/R5KQ/PN3pNR/2q1Nk1b/rrb3NQ/4nn2/B1nBq1n1/bR6 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Ke3 g5 Ke4 c5 d4 b5 a4 c4 h4 g4 d6+ Ke6 d7 g3 a5 b3 h6 b4 d5+ Ke7 Kf5 c3 e4 b2 h5 g2 e6 b3 h7 c2 a6 Qa5 d8N Nf6 e5 Qb4 h6 Nfd7 Na3 b1N Nc4 b2 Nb6 Nc3 Qh5 b1B Nf3 g1N Bd2 Nh3 Bc4 Nc6 Ba2 Nd1 Qg6 Rg8 h8R Nf4 h7 Qc5 Rh6 c1Q+ Kg5 Bd3 Rb1 Q1c2 d6+ Ke8 e7 Bc4 Ne6 Nb4 Qg7 Rb8 Qg6 Bg7 Nf8 Ne3 Qh5 Qa5 Qh4 Qb2 Nh2 Qc5 Ng4 Nfg2 Kh5 Nbc2 Kg5 f6+ Kh5 Kf7 e8R Bb7 Rc8 Ba8 Rc7 Bf3 Ra7 Be2 Nc8 Rb4 Nb6 Ke8 Kg6 Ra4 e6 Ne5+ Kh5 Nf3+ Kg6 Bd1 d7+ Ke7 d8N+ Kd6 Nh2 Ke5 Ng4+ Kf4 Kf7 Kf5 Nc6 Bde2 Nce5 Bd1 Nfg6 Rb8 Nf8 Bde2 Rg8 Bd1 h8N Qbb5 Nhg6 Rb7+ Nfd7 Bf8 Rgh8 Bd6 Kg7 Rb8 e7 Qb2 Nd5 Rbb4 e8Q Bc7 Qf7 Bd6 Nd3 Be5 Ndf8 Bc3 Nb6 Bd4 Bb3 Qa2 Qg8 Ba1 Qh7 Qb2 Ba2 Qbe5 Be1 Qe4 Nde5 Qd3 Re7 Qe2 Bd2 Qf1 Nd3 Ng1 Nh2 Bh5 Ra7 Qe2 Ng4 Nf3 Nde5
B2r1NrQ/1n1QQ1b1/p5N1/2N1q3/KBN3bn/1P3k2/3Rqb2/R1Qrr1N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb3 c5 f4 e5 g4 c4+ Ka4 c3 b3 e4 f6 h3 f5 c2 g5 h2 g6 h4 b6 h3 f7 e3 f6 e2 g7 e1R b7 a6 Bd2 c1B Bg2 Bf5 Bb4+ Kd7 d6 Ke6 d7 Ba3 d5+ Ke5 d6 Kf4 Nd2 Qe7 d8Q Nh6 g8Q Nc6 b8N Qe2 d7 Bg7 f8N Bg4 f7 Nf5 Qe7 Nd8 Nc4 Nb7 d8Q Nh4 Nbd7 Bc1 Qh7 Be3 Nc5 Rg8 Q8d7 Bf2 Qh8 Rd8 Ng6+ Kg3 f8N Qe5 Nf3 Qe2 Rg1 h1Q Qc1 h2 Ng5 Qe5 Bc6+ Qg2 Nh3 h1R Ra2 Rd1 Re1 Qf3 Rd2 Qfe2 Bd5 Nd6 Ba8 Nb7 Ra2 Kf3 Ra1 Q2e4 Re2 Rhe1 Rd2 Qe2 Ng1+
NR1BR1q1/kq1R1rrP/R2N1r1R/1Q3B1N/q1q5/n4bb1/2NQp3/1n4K1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kd7 d4 e5 f4 a5 Kf2 c5 b4 Kc7 h5 Kb7 b6 g5 f6 e4 b5 c4 d6 a4 d7 c3 h6 c2 h7 a3 f5 a2 d5 Qe7 d8R Qc7 d6 Na6 f7 Ra7 f6 Nb4 d7 Bd6 f8R Ne7 f7 Ned5 Rfe8 Nc3 Bd3 Rf8 Ne2 e3+ Kg1 g3 Bf5 g4 Rh6 g2 Ng3 e2 Na3 Nb1 Nh5 Bg3 Bg5 c1Q Nc2 Q1f4 Qc1 Qfc4 Qd2 Kb8 b7 Qb6+ Ne3 Nc2 Bf6 Qbc6 Be7 Nca3 Nc2 Ra6 Bf6 Ka7 b8R Qb7 Be7 Rh8 f8N Rf6 Ne6 Rhf8 Nc7 R8f7 Na8 Qbd5 Rg8 Bb7 Rde8 Qdc6 d8N Qc8 Rh8 Bf3 Nb7 Q8c7 Nd6 Qb7 Qd3 Nd2 Rd1 a1Q Bd8 Ndb1 Qd2 Qaa2 Re7 Qa4 Rd7 Q2c4 Re8 Bh4 Kh2 g1R Rf1 Rg2+ Kh1 g3 Re1 Rh2+ Kg1 g2 Rf1 Bg3 b6+ Ka6 Rf2 Rh4 Rf1 Rg4 Re1 Rgg7 Rf1 Qbe4 b7 Ka7 Rd1 Nc3 Ra1 Ncb1 Rc8 Ka6 b8Q Qb7 Qc7 Ka7 Qc6 Qa5 Rb8 Qaa4 Ra2 Rgg6 Bg4 Qab3 Qb4 Bh4 Ba5 Nb5 Bf5 Rg5 Ra4 N5a3 Kh2 Rg4 Qcb5 g1Q+ Kh3 Rg8 Qd2 Qg7 Kh2 Bg3+ Kg1 Qf8 Bg4 Rgg7 Be6 Qg8 Bf5 Qcb4 Bd8+ Qa5 Rc4 Qaa4 Rc6 Qbc4 Ra6+
Nq1r2qn/1k2B1rP/1n2Bn2/1K3bb1/2BN2R1/B2N1nQ1/pQ2N3/2bB1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 e4 c5 Ke2 Kc7 Kd3 g5 Kc4 a5 b4 f5 d4 f4 e6 a4 e7 a3 e8B f3 d6+ Kb7 h5 a2 b6 g3 d5 f2 d7 g2 d6 g4 b5 g3 h6 Qe7 d8B Ra5 d7 Qf6 h7 Be7 e5 Qf5 e6 Qg5 Qc2 Ra3 Qb2 Re3 Nc3 Qe5 Bf7 Qd6 Nd1 Rd3 Ne2 g1Q Rh4 g2 Rg4 Bf6 e7 Qc7 e8B Ne7 Be6 Ng6 Be7 Rg3 d8Q Rg8 Qd6 Nh8 Bh5 Nd7 Qf4 Rd3 Qg3 Bg5 Rb1 Nf6 Ra1 Kb8 b7 Rdd8 Rb1 Ka7 b8N Kb7 b6 Rg7 Nc6 Qb8 Kb5 c4 Ncd4 c3 Ra1 c2 Rb1 Qh1 Ra1 g1N Rb1 Ka8 b7+ Ka7 Ra1 Nf3 Rb1 Qh2 Ra1 Qa8 b8N Kb7 Nd7 Qg2 Nb6 Qb8 Na8 Qg1 Bd2 c1B Bdb4 Qg2 Ba3 Qg1 Bh3 f1N Bc4 Bf5 Nf2 Ne3 Nd3 Ned5 Rb1 Bce3 Rf1 Bc1 Bb3 Nb6 Bd1 Qf2 Bf7 Qe3 Bc4 Qe6 Re4 Qg8 Bg4 Bg6 Bge6 Bf5 Rg4
1Q4q1/1rQq3P/Rqr1n1N1/4b1R1/1Rpb4/Rq2Bk2/1nB1b3/BNK2RB1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kd7 b4 Kd6 f4 g5 d4 e5 Kd2 c5 h5 a5 b6 c4 h6 a4 h7 g3 f6 g4 f5 e4 b5 a3 f7 a2 b7 g2 f6 g3 b6 Bf5 Rh3 Na6 b8Q+ Nc7 b7 Bg7 f8B+ Ne7 f7 Bg4 Bd3 Be5 Ne2 g1Q Nf4 g2 Bc2 Ra6 Ng6 Qd7 Ra3 Rc6 Bg7 Be2 f8R Nc8 Rf1 Nb6 Qe1 Na4 Qg3 Qf2 Qf4 g1Q Bf6 Bd3+ Kd1 Qgg3 Be3 Nb2+ Kc1 Qff3 Bg1 e3 Bg5 e2 Qf7 e1B B5e3 Be2 Qf4 Qg7 Qf7 Bf2 Qf4 Kd7 d6 Ke6 d7 Kd5 d8B Qd7 Bf6 Ne6 Qc7 Rg8 b8R Rg7 Rb4 Rf7 Bg7 Qg5 Ra6 Qgd8 Qb8 Qb6 Qc7 Re7 Qf8 Qf7 Qfb8 Qg8 Ra3 Bd3 Bh8 Ke4 d5 Kf3 d6 Be2 Bg7 Qdd8 d7 Qde8 d8R Qd7 Qbb7 Rf7 Rda8 Re7 R8a6 Rf7 Nc3 Re7 Rb1 a1Q Qbb8 Qa2 Ra1 Qb3 Nb1 Bh2 R3a5 Bd6 Rg5 Be5 R1a3 Rf7 Rd1 Re7 Bf4 Bfd4 Bfe3 Rf7 Kd2 Na4 Qba7 Qdd8 Re1 Ba1+ Kc1 Bh2 Bgd4 Be5 Qcb8 Qd5 Qd6 Rb7 Qc7 Qd7 Qab8 Bc3 Bd2 Ba1 B4e3 Bad4 Bc3 Ng7 Ba1 Ne6 Rd1 Nb2 Rf1+
1B2rq2/1bq4p/1B2PnR1/2R1Q1nr/qnn3B1/4b2B/1N1Q1B1k/1K1Q1QN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 f5 Kc2 c5 g4 a5 b4 a4 b6 a3 e5+ Kd7 b7 a2 g6 f3 b5 c4 b6 f2 g7 c3 g5 f4 g6 f3 d6 Ke6 d5+ Kf5 d7 Kg4 d6 Kg3 Be3 Ra3 Rh5 Qh4 d8B Nc6 b8B Na5 b7 Nc4 d7 Bc5 Nd2 Ra5 Bb6 Nf6 g8Q Kh2 Bh3 f1N d8Q f2 g7 Ng3 Qf7 f1Q g8B Nge4 Bf2 Be3 e6+ Qg3 Rc5 Ng5 Qff8 Rb5 Bf7 Qc7 Bh5 Ra5 Rc1 a1Q B5g4 Qa4+ Kb1 Rg8 Qf7 Re8 Qd5 Qg2 Qd3 Qf3 Qfd7 Qff4 Q3f1 Qfd6 Rc2 Qf8 Ra2 Nd6 Nc4 c2+ Kb2 c1N Kb1 Rb5+ Nb2 Nc4 Q7d2 Nd3 Ra3 Nb4 Rd3 Ne5 Rd7 Nc4 Rg7 Bd7 Rg6 Bc6 B8a7 Ra5 b8Q Bf3 Qbd8 Bh1 Q8d4 Bb7 Bb8 Nge4 Rc6 Rh5 Rc5 Ng5 Qe5+
q1BrN3/n4PBq/N1Bn3Q/2N5/1KB1rk2/1N4q1/1R1rpb2/1BQ1Rr1b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 d5 c4 h5 f4 a5 g4 e5 c5 d3 Kc3 a4 b6 h4 b7 h3 b5 e4 f6 Kg6 c6 d2 c7 a3 b6 a2 f7 e3 f5+ Kh7 f6 Kg6 Bd3+ Bf5 c8B e2 Na3 h2 Bb2 Qc7+ Nc4 Rh4 Nf3 Rh6 Bb1 Ne7 Kb4 d4 Re1 h1R Qc1 d1Q Nfd2 d3 Nb3 d2 Nd6 Rh7 Ne8 Bh6 f8Q Qdc2 Qh8 d1R Qf8 Nd7 b8N Be4 b7 Ne5 Nd7 Nf7 b8N Nd6 Na6 Rd2 Ndc5 Rf1 Qh8 Bf8 Bd4 Rh4 Qh6+ Kf7 Be5 Bh1 Bc3 Qh7 g6+ Kg8 g7 Kf7 Bcf5 Rd8 Bc8 Rf5 Bd4 Rf1 g5 Re4 Qh2 Kg6 g8B Rf4 Bd5 Rf1 Bc6 Bg7 Qf4 Kh5 g6 Bh6 B8b7 Nec8 g7 Na7 g8B Bg5 Qh2+ Kg4 Bc4 Be3 Qh6 Bf2 Bc8+ Kf3 Bc3 Qcg7 f7 Qg3 Qh5+ Kf4 Bg7 Qg1 Bc2 Qg5 Rb1 a1Q Rb2 Qg3 Bb1 Nab5 Nb8 Qa8 Nba6 Na7 Qh6+
nNN1q3/1RR2pR1/2Q4r/3b1K1Q/nb4B1/3NB2P/rrbbqRR1/4N2k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 g5 b4 a5 d4 c5 h6 g4 b6 a4 h3 c4 h7 f3 b5 g3 b7 c3 b6 c2 Ra2 g2 Be3 c1R Nc3 a3 Rh2 f2 Na4 Qc7 Nf3 g1B Nb2 Qc4 Rg2 Qc5 Qa4 Qc7 Ne1 Ne7 Nbd3 Na6 b8R Qc2 b7 Be6 Qb5 Nc8 Qc6+ Ke7 d6+ Kf6 d7 Bb4 d8R Nc7 d5 Rb1 d6 Nb6 d7 Rb2 Rg7 Na4 Rdg8 Ra5 d8R Na8 Bg2 f1B Rd7 Bh2 Rbc8 Bf4 b8N Qd1 Bf3 Qd2 Ra1 a2 Rb7 Ra7 Rc1 a1Q Rc2 Bg5 Bg4 Bh6 Nf3 Qae1 Rcc7 Bg2 Ne5 Qd8 Nd3 Qd1 Rd2 Bf1 Nfe1 Qe8 Rg5 Bg2+ Kf4 Bd5 Rg7 Bb3 Ke4 Bc2 Kf4 Rg8 h8Q Ra6 Bb6 Rf8 e4 Qe2 Qh7 Rh8 Be3 Qd1 Rf2 Qe2 Nf3 Nc3 Nfe1 Raa2 Qb6 Na4 Qc5 Bf5 e5+ Ke6 Qc3 Kd5 e6 Bb3 e7 Bc2 Kg3 Ke4 Qc5 Bb3 Qc6+ Bd5 R5g6 Bg5 Qh4 Rh6 Qh5 Qd8 e8N Qc8 Bc1 Bgd2 Nd6+ Ke3 Kh4 Qe8 Kg5 Bfe4 Ne5 Bc2 Nc8 Bf3 Kf6 Kf4 N5d3+ Kg3 Kf5 Bd5 Rf3+ Kh2 Rf2+ Kh1 Rg5 Bdc3 Bf4 Bd2 Be3 Qf1 Bd1 Qe2 Rgg2 Qf1 Bf3 Qe2 Bg4
q3R1rn/Q1K2pnq/2B1Q1Q1/4r2k/1br1Q3/1bN3P1/BR1r1qQ1/1BBN4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 a5 Kf3 h5 Ke4 c5 Ke5 f3 e4 h4 b4 h3 d4 f2 b6 h2 b7 a4 d6 a3 g3 c4 g6 c3 d7+ Ke7 g7 a2 b5 c2 b6 Rh6 d5 Qe8 Qf3 Ra6 Ne2 Ra5 Nec3 Ra7 Qg2 Qd8 Nd1 Ra5 Nbc3 Ra3 Rb1 a1R Rb2 Na6 b8Q Rb1 b7 Nc5 Qa8 Rha6 b8Q R6a5 Qba7 Ne6 Bc4 f1Q Ba2 Qf2 Re1 h1Q Qc6 Qh7 Qc4 Nh6 g8B Ng7 Qc6 Qe8 Re2 Nhf5 Qe6+ Kd8 Re1 Ne7 Kd6 Ng6+ Kc6 Be7 e5 Nh8 Re3 Bb4 Re2 Qh5 Bh7 Rb3 Bd3 Qh7 Qf5 Ke7 e6 Qe3 d6+ Kf8 e7+ Kg8 Bd2 c1R Kc7 Qh2 d8Q Bc5 d7 Qf2 Ne3 Rb8 Nb5 Bb4+ Bc2 Bb7 Qc8 Bd5 d8Q Bb3 Qdd4 Rd1 Qdf6 Rbc1 Qcd7 Qf8 e8B Qh5 Qdd6 Qg6 Q5e5 Kh7 Bc6 Kh6 Bcb1 Rc4 Bc1 Rd2 Nd1 Ra8 Qed4 Kh5 Nbc3 Qh7 Re7 Re5 Qde6 Rd8 Qdf4 R8d3 Qfe4 Qa8 Qe1 Rd8 Qee4 Rf8 Re8 Rg8 Qfg6+
qN1B1rN1/2Qnp2n/2B1R1Q1/k4R2/1bQrQ1P1/6rq/Nr5N/K1n1Nb2 b - - 0 1 illegal: No possible last move
2Q1QB2/1qp2BKN/qrnr4/B3nQ1k/q1b1R2P/3Bb1B1/1q1n4/1R3QN1 b - - 0 1 illegal: No possible last move
N1r1NB1b/1p1N1k2/B3nNb1/1qBb3n/3qb2n/1N4P1/1Q2rB1K/1R3R1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 c5 Kf2 e5 Kg3 h5 a4 c4 d4 b3 d6 b2 f6 e4 d7+ Kf7 g6+ Ke6 f7 c3 a5 e3 d5+ Kf6 a6 e2 f5 e1N a7 c2 d6 h4+ Kh2 h3 g7 Rh6 g3 Rh7 Nf3 Be7 f8B Na6 Be3 c1Q Ne5 Qc2+ Bf2 Qc5 Nd2 b1B Nb3 Nc7 Ba6 Ne6 Rf1 Be4 Rb1 Ng2 Qd5 Qdb6 d8N Qcb5 d7 Qd4 Ndf7 Nh4 d8Q Bd7 Qb8 Be8 Nd6 Bg6 Qe8 Rb8 a8N Rc8 Qd8 Rh8 Qb6 Rc2 Qdc6 Re2 Qc1 Bd8 Qbc6 Ba5 Qb2 Bc3 Qd5 Bc2 Qh1 Be4 Nec4 Bd5 Ne8+ Kf7 Bc5 Nf6 g8N Nh5 Ngf6 Be4 Ncb6 Rg8 Nec7 Rc8 Nbd7 Qda4 Nfe8 Bh8 f6 Qd4 Nd5 Bc2 Qf3 Kg8 Kh1 h2 Qg2 Bce4 f7+ Kh7 f8B Kg8 N5f6+ Kf7 Qf3 Nf5 Kg2 Nh4+ Kh3 Bd5 Qg2 h1B Qh2 Bhf3 Qh1 Bfe4 Kh2
1N1k4/1pBBN3/qRn4P/1qB1N3/Rn1r1Nb1/2Kb1B1N/1QnQ3n/r3b3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 c5 e4 f5 d4 g5 Kd2 b3 h4 f4 d6 c4 d5 b2 d7+ Ke7 d6+ Kf7 e6+ Kf6 h6 f3 a5 g4 h5 f2 a6 g3 e5+ Kf5 h7 g2 e7 Ke6 e8Q+ Qe7 d8B Bh6+ Kc3 Bf8 d7 Bh6 a7 Be3 h6 Na6 Qd2 Nb8 Bc7 Nf6 d8N+ Kf5 e6 Qd6 e7 Qa6 Na3 b1B Nh3 g1Q Ne6 Bd3 Nef4 Ng4 Qb5+ Kf6 e8B Ke7 Be2 f1N Qbb2 Bf2 Bd6+ Kd8 Bd7 Nfe3 Bf3 Nc6 Bc5 Rf8 h8N Nh2 Nhg6 Qg5 Ne7 Nc2 Re1 Rg8 Re6 Be1 Bd6 Qgb5 Rg6 Rb8 a8N Rh8 Nc7 Ra8 Ra2 Rg8 Re6 Rg5 Rg6 Rd5 Rf6 Rd4 Rg6 Qab6 Na6 Qa7 Nb8 Qaa6 Be8 Bcf5 Bd7 Bg4 Bc5 Na5 Rb6 Nc6 Nb1 Ra7 Ra4 Ra8 Qa2 Ra7 B1a3 Ra8 Bab4 Ra7 Na3 Ra8 Kb2 c3+ Kb3 Ra7 Qb2 Qaa5 Nc4 Na3 Bd6 c2 Kc3 c1N Ne5 Nc2 Ra3 Qaa4 Bbc5 Ra8 Qb3 Na2+ Kb2 Nab4 Kc3 Ra5 Qb1 Qa6 Qb2 Q4b5 Rb3 Ra2 Ra3 Ra1 Ra2 Bh5 Ra4 Bg4 Bc7+
1nr5/PQQkN2B/2q1bB1R/3B4/pQ1q1NbK/bBq2Q1n/Q3r2R/6b1 b - - 0 1 illegal: No possible last move, all moves rejected
3R1n1R/P3p1Q1/N1qRq2R/2nrn3/n1kBB2R/3b3Q/Q1N3K1/2bQqr2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 h4 c5 d4 g5 f4 b5 Kf2 c4 a5 g4 h6 g3+ Kg2 b3 d6 b4 h5 b2 a6 b3 f6 Ke6 f5+ Kd5 d7 c3 a7 c2 h7 Qa5 d8R+ Nd7 f7 Qa6 f6 Qd6 h6 Qb4 Nd2 b1Q Ngf3 b2 Bd3 Bg7 f8Q Qb3 f7 Ba6 Ne4 Nf6 Nc5 Ne4 Be3 c1Q Ne1 Qb6 Rh4 Qe6 Bc2 Kc4 Qg8 Nf8 Rd6 Rd8 d5 Be5 Qg7 Bf4 Bd4 Bb5 Na6 Nc5 Ra2 Qa1 Bg6 b1N Be4 Nc3 Nc2 N3a4 Ra3 Rg8 h8R Qc3 h7 Qe1 Rf3 Bd2 Rf6 Bh6 Kf3 g2 Rg6 g1N+ Kg2 Bg5 Rf6 Nf3 Rfh6 Nfd7 f8Q Nfe5 Qff3 Rgf8 Qh3 Rf1 Qa3 Nf8 Qa2+ Nb3 Rb6 Bd2 d6 Be3 d7 Bg5 Qb2 Nbc5 Rd6 Bd2 Ncb4 Qc3 Nc2 Bc1 Qa3 Rc8 d8R Rc6 R6d7 Rd6 Qb2 Rd5 Qa1 Kb3 Rd6 Bd3 Qb2+ Kc4 Qa2+ Qb3 Rg8 Qc8 h8Q Qc6 Qhh7 Qd7 Rh8 Qe6 Qb1 Qb6 Qf5 Qc7 Qh3 Qc6 Qa2+
BQ1Bn2N/4bR2/1K4nP/RB1bn3/q1r3B1/3Qpn2/n1R1B2N/n4rRk b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 Kf6 Kd4 b5 f4 g5 h4 d5 c4 b3 a4 b4 a5 g4 a6 b2 c6 g3 Kc5 b3 a7 d4 c7 e5+ Kb6 e4 h6 g2 h5 d3 h7 d2 c5 Qe8 h6 Be7 c6 Be6 c8B Na6 c7 Bd5 Bd7 Rc8 Ne2 g1N a8B Nf3 Rg1 Ne5 Ra5 e3 Bb5 Qd7 Qc2 d1N Nd2 b1N Nf3 b2 Nh2 Ndc3 Qd3 Rf8 c8B Na2 Bd2 Nc7 Be1 Na3 Bh4+ Kf7 f6 Ke6 f7 b1N Bf6 Ne8 f5+ Kd6 Bh4 Nc2 f6 Na1 Nf4 Nd2 Ng6 Ndf3 Be2 Qg4 Be6 Qa4 Bg4 Bd8+ Ka6 Ne7 Bg5 Rhg8 Nh8 N7g6 Bh4 Be7 Kb6 Ng7 Bg5 Rc8 f8R Rc4 Rc8 Ne8 f7 Rg7 f8R Rf7 Bh5 Rf6 Rf7 Ke6 Qb3 Kf5+ Rc6 Ke4 Bg4 Rf4 Bf6 Rf5 Qd3+ Kf4 Rd1 Kg3 Rg1+ Kf2 Rc5 Rb4 Rc2 Rc4 Rf1+ Kg2 Rb1 Ba3 Bd8 Be7 Rg1+ Kf2 Rd2 Rc2 Qb3 Nd3 Ka6 Nfe1 Bbc6 Nh4 Ng6 Rc4 Qb8 Rf3 Kb6 Ne5 Bb5 Rff4 Rc2 Rf5 Rf1+ Kg2 Rh1 Rf1 h8Q N5d3 Qg7 Nef3 Nh8 Ng6 Qd4 Nde5 Qd3 Rd1 Rf1 Re1 Rf2+ Kh1 Rg2 Rf1 Rg1+
2B1r1b1/1RRKR1NR/3bP1Bn/3nR2b/B1Qp4/B3N1k1/1qbQb3/b3r3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 c4 a5 b4 f5 e4+ Kg3 c5 h5 g6 d6 c6 a4 c7 f4 b6 d3 b5 f3 b7 h4 b6 d2 g7 h3 e6 a3 e7 a2 e8B h2 e5 f2 Nc3 Be7 Nh3 Rh7 Bg6 Bh4 Nf4 Qe7 Bb5 f1B Ba3 Kf2 g4 Nh6 g8Q Nf5 g5 Ng3 Nh5 Be2 Rc1 a1B Ba4 Qf6 Ng7 Bf5 c8B Na6 Kc6 Bc2 b8R d5+ Kd7 Nb4 b7 Nf5 Qf7 d4 Qc4 Kg3 Nd5 Qb6 Ne3 Nh6 e6 Nd5 Re1 Qb2 Rh1 Bh5 Qde2 d1B Qd2 Rh8 Re1 Ra6 Ra8 h1B b8R Bhe2 Rb7 Bhe4 Raa7 Bh5 Rh1 Bde2 Rce1 Re8 Rc7 Kf2 Rab7 Bg3 Rh4 Bhf3 Rh5 Bd6 Reh1 Ra8 R1h4 Bed3 Re4 Kg3 Re5 Ng4 Rh8 Nh6 Rh7 Bh5 Bf5 Rb8 g6 Bf1 Rb6 Kf3 Rh8 Qb1 Be4+ Kf4 Ngf5 Bfe2 g7 Qb4 g8R Qb1 Rg7 Qa2 Ra6 Rb1 Rb6 Qb2 Re7 Re1 Ng7 Kg3 Bh7 Bdg6 Rbb7 Bf7 Bg6 Bg8 Rh7
NB2K1b1/2NrbQ1k/Q5R1/B4b2/1pB3r1/1NnRP3/nBbB2qr/1Nr5 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 g5 Ke3 f5 Kd4 Kf7 a4 Kg7 h4 b5 e3 c6 d6 g4 Kc5 b3 d4 b4 h6+ Kg6 d5 b2 h7 g3 a5 f4 h5+ Kh6 a6 f3 e6 f2 a7 g2 e7 Qe8 d7 Bb7 Kd6 c5 d8N c4 Qa4 c3 Nf3 g1R Ne6 c2 Ra3 Qc8 Nfd2 Nc6 Qa6 Na5 Nc7 Nb3 Bc4 Rg4 Rg1 f1B Rg3 Rb8 a8N Nf6 Rg1 Kg7 h6+ Kg6 Rg3 Bd3 Rg2 Qd8+ Ke6 Ne4 d6 Rc8 d7 Nc3 Rg1 Qe8 d8B Bd5+ Kd6 Qf7 Kd7+ Qe6+ Ke8 Bf5 Rg2 Rb8 Rg3 Rb7 Rg2 Qf6 Rg3 Bg8 Rg1 Nd4 Nb3 Na2 Bd2 c1R Rg3 Nb5 Rg1 Bge6 Rg2 Qg5 Rg3 Rg8 h8B Nbc3 Be5 Rh8 h7 Bc2 Bf4 Qd5 Rg1 Qg2 Bg3 Rg8 h8B Kh7 Bd4 Rh8 Bge5 Bg8 Ba7 Qh2 Bb8 Qe2 Rg3 Qg2 Bg7 Rd4 Rg6 Rg4 Nb5 Ra7 Ba5 Rd7 Bge5 Bh6 Nbc7 Bg5 Kf8 Bf5 e8Q Bh4 Bg7 Bg5 Qf7 Be7+ Ke8 Bc2 Bb6 Bf5 Ra5 Bc2 Rd5 Bf5 Ba5 Bc2 Na3 b1B Rd4 Bf5 Rd3 Bc2 Nb1 Nb5 Rb6 Qh3 Rd4 Qg2 Bf6+ Kh6 Rd3 Rh7 Qf8+ Kg6 Rc6 Rh2 Bb2+ Kh7 Rg6 Nbc3 Qf7+
B1r1B1K1/rRq1Q1N1/1n1nR2P/bNB5/4Q2b/1nb2bN1/3B3p/4NnBk b - - 0 1 illegal: No proof kernel
Q1Nn2Br/Bnk1p3/1B2q3/b3RN2/3K1N1n/1r4B1/3QPR1N/1B1rnqn1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 h3 fxg4 Qa4 g3 Qd1 g2 Nc3 g5 Nb1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Ra3 Qc8 Ra1 Qd8 f4 Kd7 b4 a5 d4 c5 Kd2 h5 Ke3 h4 b6 c4 b5 a4 f5 a3 d6 a2 d5 c3 b7 h3 b6 h2 f6 c2 f7 Ra6 g5 Rh4 g6 Bg7 f8N+ Ke8 Qd2 Ra8 Nf3 g1N Bg2 Rh3 Nh4 Ra7 Ne6 Kd7 Be4 Nc6 b8B Qc7 b7 Bh6+ Nf4 Bg7 Ba3 c1R Bc5 Bf6 g7 Rd1 Nf5 Ra6 Bba7 Qb6 b8B Nh6 g8B Nf3 Rf1 h1Q Rf2 g2 Bc2 Kd8 d7 Na5 Be5 Nh4+ Kd4 Qd6 Bd3 Kc7 d8N g1N Nc6 Nf7 Bc2 Kc8 Be4 Qe6 d6 Rb3 d7+ Kb7 d8Q Qh3 Qe8 Qf1 Bc2 Rab6 Be4 Rh3 Bc2 Rbb3 Qa8+ Ka6 Be4 Nb7 Nb4+ Kb5 Ng2 Na5 Nd5 Qa6 Nb6 Rb4+ Kd5 Nb7 Bcd6 Nfd8 Qd3+ Ka5 Nd2 Nhf3 Nc8 Rb3 Bg3 Bc3 Nf4 Rh8 Rc1 Nh4 Nf3 a1N Nh2 Bb4 Qd2 Nc2 Ke5 Ne1 Kd4 Kb5 Bb1 Ba5 Ba3 Qh6 Rc5+ Ka6 Rd5 Qe6 B3c5 Kb5 Re5 Kc6 Be4+ Kd7 Bb1 Kc7 Bcb6+
1q2R1N1/2BnqN2/r6B/B1NBb1qq/rB1p1R1N/1n1Pr2k/5K1Q/1r4Q1 b - - 0 1 illegal: No possible last move, all moves rejected
KQ3n1B/N2nqb1b/1p4QN/bb2QB2/RP4r1/1n3Nn1/q1N3k1/3Q1NR1 b - - 0 1 legal: proof: e4 f5 exf5 d5 h4 g5 c4 gxh4 cxd5 b6 a4 Nc6 a5 Rb8 a6 Rb7 axb7 Nb8 Na3 a6 Nb1 a5 Ke2 Kd7 Kf3 Kd6 Ke4 h5 g4 e5 d4 c5 f4 c4 g5 a4 f6 c3 f7 a3 f5 c2 f6 h3 g6 h2 g7 a2 Nf3 h4 Nbd2 h3 Bd3 Be6 Nf1 Ne7 g8N Ng6 Nh6 Nd7 b8Q+ Qc7 b3 Rg8 Bb2 c1N Bc2 Bg7 f8N Bf7 Ne6 Ne2 Qe1 Bh8 Qg3 Ngf8 Qg6 Be8 f7 Ng3+ Ke3 Bg7 Bf5 e4 Kf4 e3 Bc3 Nh5+ Ke4 e2 Bb2 e1N Bc3 Nd3 Bb2 Bf6 Bc3 Nh7 f8Q+ Be7 Qfg7 Nhf8 Qh8 Bf7 Bb2 Bg5 Bc3 Nc1 Qe5+ Ke7 Bb2 Bd2 Bc3 Qd6 Bb2 Ba5 b4 Nb3 Bc3 Qc7 Bb2 Qd8 d6+ Ke8 Kd5 Ng3 Kc6 Rg7 Rd1 a1Q Kb7 Qa2 d5 Rg8 Ka8 Rg7 Rg1 h1B Ra1 h2 Bd4 Bg2 Bc3 h1B Ned4+ Ne6 Nc2 Bh3 Qgf6 Rg4 Qg6 B1g2 Rh1 Kf8 Ng5 Be4 Nf3 Bd3 Bd4 Bb5 Bb2 Ndc5 d7 Ke7 Bd4 Qe8 d8N Nd7 Qe1 Qf8 Bh8 Qg7 Qd1 Nef8 Qf4 Bg2 Qfg5+ Qf6 Nc6+ Kd6 Na7 Bh3 Nh4 Ke5 d6 Qg7 Q5h5 Kf4 Nf3 Bg2 Qh2 Qe5 Qhh5 Qe7 Qh2 Nb8 d7 Bh3 d8Q Nbd7 N1d2 Bhf1 Qc8 B1c4 Nf1 Bg8 Qhe2 Bcf7 Qe8 Bh7 Qee6 Qb1 Ra4 Qa2 Qb8+ Qd6 Nfd4 Qe5 Ne2+ Kf3 Ng1+ Kf2 Nf3 Kg2 Qe7 Qf6 Qee5 Qe7 Rg1+
rn3RB1/R2bKb1R/Bn6/2Q1B3/rpBp1QkB/8/1N1P3r/N1R1n1qb b - - 0 1 legal: proof: e4 g5 b4 f5 exf5 b5 h4 Bg7 hxg5 Bd4 c3 a5 c4 Bb6 c5 axb4 cxb6 b3 Ke2 Kf7 Ke3 e5 Ke4 c5 Kd5 h5 Kd6 b2 g4 b4 a4 h4 f4 h3 b7 e4 a5 h2 g6+ Kf6 a6 e3 g7 c4 a7 e2 g5+ Kf7 f6 Kg6 f5+ Kh5 g6 c3 f7 c2 f8Q Nc6 b8B Na5 f6 Rh7 f7 Rh6 Nf3 e1N Ba6 Ng2 Na3 b1B Nc4 Nb3 Nb2 Qg5 Qg1 Kg4 Ne1 Ba2 Qc5 Nf6 g8B Nd4 Ke7 d5 g7 Bd7 Bg3 Rh8 Bh4 Nc6+ Kd6 Nb8 Ke7 Be6 Rb1 Qe3 Ra1 Nfd7 Rb1 Nb6 Ra1 N8d7 Qb8 Rh7 f8R Qg1 Qe5 Nb8 Qf4+ Kh3 Bf7 Bd7 g8B Rh5 Nc4 Bb3 Bb2 c1R Nc2 Ne1 Be5 d4 Nb2 Rh8 Bfc4 Rb1 Bd3 Bf7 Bdc4 Rd1 Rb1 Rc1 Na1 Rc2 Na4 Ra2 Nb2 Ra4 Rc1 Qe3 Rg1 h1B Rg7 Rh5 Rh7 Qg1 Qf2 Kg4 Qf6 Rf5 Qh6 Rf2 Qg5+ Kh3 Qf4 Rh2 Qh6 Kg4 Bb7 Na6 Bc8 Rb8 a8R Ra2 Qf6 Ra4 Ra7 Ra8 Qf2 Nb8 B8a6 Qg3 Qf1 Qg1 Qf4+
R5n1/3b4/Q1NNr2R/bnRN3p/1b1NrN1P/B5pq/2B2k1Q/r1RK3n b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 f4 Kf7 e4 Ke6 c4 g5 b6 a5 b7 d5 c6 g3 f5+ Kf7 c5 h6 e6+ Kf6 e5+ Kg7 f6+ Kg6 c7 Kf5 c6 Ke4 f7 a4 e7 d4 e8N d3 e6 a3 e7 a2 Nf3 g2 Nc3+ Kf5 Qd2 Kg4 Ba3 g1B Nh4 Ra6 Nd5 Qd7 Rc1 a1R Kd1 Bb6 Nd6 Ba5 Ng2 Kf3 e8R g4 h3 Be7 f8N g3 Ne6 Rh7 Qc2 d2 Bd3 Kf2 Nd4 Rg7 Qa2 Rg4 Bc2 Re4 Qb2 Qf5 Rd8 Be6 c8R Bd7 c7 Nc6 b8N Na7 Nbc6 Nb5 Ra8 Rb6 c8Q h5 h4 Qe6 Qa6 Qh3 Re8 Bf8 Re6 Be7 Rh6 Bf8 Ne8 Bc5 Nd6 Bcb4 Nd8 Rc6 Re1 Rb6 Re3 Rc6 Rc3 Rb6 Rc5 Rc6 Ne8 Rce6 Nd6 Re2 Bf5 Kf1 Ne1 Bc7 N8c6 Bca5 Kc2 R2e5 Bg6 d1N Qa2 Nf2 Bf5 Nh1 Kd1 Bb6 Qh2 B6a5 Ng2 Kf2 Bc2 Re4 Ngf4+
n2r2n1/4RK2/1PBp1B2/1B2qrN1/bkQNBb1N/5b2/Q2BNp2/r1n2R2 b - - 0 1 illegal: No possible last move
bbNqQR1k/B1R3p1/1r6/3Qr3/Nn2nN1p/P4Bb1/B3BN2/1nK1B1r1 b - - 0 1 illegal: No possible last move, all moves rejected
1B1N4/2r2q1Q/Q2R1N2/1r1b1QR1/1b1rn1pK/NQP2q1Q/1pn1k1B1/3N3q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 Kf7 Kf2 Kf6 Kg3 d5 h4 g5 a4 e5 h6 b5 c6 g4 h5 d4 h7 e4 c7 b3 h6 b4 a5 b2 a6 e3 c3 d3 a7 b3 Rh5 e2 Ra6+ Bd6 Kh4 e1R Nh3 d2 Bg2 Re4 Nf2 Qd7 Rg5 Qc6 Na3 Bb7 c8Q b1Q Qc2 b2 Qb3 Qd3 Nd1 Bf8 Qd7 Qe6 Rd6 Qf3 Qc8 Kf7 f6 Bd5 f5 Nc6 Qa6 Rd8 a8N Nd4 Nb6 Rc8 Nd7 Qe7 Kh5 Rc7 Kh4 Ke8 f7+ Kd8 f6 Nc2 Nf2 d1Q Bf4 Qh1+ Bh2 Qe6 Nd1 Be7 f8N Rd4 f7 Nf6 Nc5+ Qd7 Ne4 Rg8 h8Q Rg7 Nef2 Ne4 h7 Rc5 Qg8 Kc7 h8Q Rb5 Qgh7 Qdf5 Ng6 Qf6 f8Q Qe6 Qf5 Qf7 Nf4 Bf8 Rb6 Bb4 Ne6+ Kd7 Nh3 Ke7 Nhf4 Kd7 Nd8+ Kc7 Nc6 Kd6 Nd8+ Kc5 Rd6 Qa7 Nb1 Rc7 Nh5 Qb7 Nf6 Qa7 Qba3 Kc4 Qb3+ Kd3 Na3 Ke2 Qe8 Kd3 Qee5 Ke2 Qg3 Rc5 Qh3 Qf7 Rb6 Rcc4 Bb8 Rc7 Rd6
3r1R2/1Bbb4/B6r/Q4N2/3BPq2/B1KpNpnb/q1R2BnQ/2Nk1Nn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 Ke6 c4 Kf5 e4+ Kf4 b4 f5 e6 d5 c5 g5 c6 a5 c7 g4 h6 a4 e7 d3 e8N a3 h7 a2 b6 g3 b7 g2 b5 d4 b6 Bd6 h5 Qg5 h6 Ra5 Ng7 Qe7 Ne2+ Kf3 Qa4 g1N Rh2 f4 Ba3 Rh5 Qa5 Qe5 Nf5 Rh3 Nc1 Na6 b8B Nf6 b7 Bd7 c8B Nc5 Ba7 Nh5 b8Q Ne6 Bb7 Rd8 h8B Bc7 h7 Ng3 Ne3 Rh6 Bg7 Qg5 h8N Qf6 Nf7 Qg5 Kd1 d2 Kc2 d1B+ Kd2 Qf6 Bfa6 d3 Nd6 Be2 Ndf5 Bf1 Bd4 Bh3 Kc3 Qf8 Rc2 Qd6 Nd2+ Kf2 Ndf1+ Ke1 Bdf6 f3 Be7 Nf4 Bh4 Ng2 Bd4 Qf4 Rb1 a1Q+ Rbb2 Qa2 Rb6 Qg4 Rf6 Qf4 Rf8 Bb6 Nd5 Kd1 Qc7 Nh5 Bhf2 Ng3 Qe5 Bc7 Qh8 Rd6 Qh5 Rh6 Qh4 Bg4 Qh2 Bh3 Nde3+
B2n2B1/Nr1n1NbQ/2RBq1Qn/7p/1p3N1B/1RqkP1N1/1r2b1K1/b5N1 b - - 0 1 illegal: No possible last move
3rQ3/3r4/Rb1B1Q2/Bnk3p1/3R1Q2/N2qPNpB/QK2n2q/rBnb3Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Ke7 b4 g5 d4 c5 Kd2 f5 Kc2 a5 b6 g3 d6+ Ke6 h5 Kd5 d7 c4 e3 c3 b7 a4 h6 a3 e6 a2 h7 f4 e7 f3 e8B f2 b5 Ba3 b6 Nf6 Bd2 Rg8 h8Q Ra5 Qe2 Nh5 Bh3 f1R Bg6 Kc6 d5+ Kd6 Nf3 Na6 b8Q+ Kc5 b7 Rd1 Qf4 Nc7 b8B Nb5 d6 Ra4 Kb3 c2 Ba5 c1N+ Kc2 Bb2 Na3 Bd4 Qf2 Rd3 Rd1 Rg7 Qh6 Qh8 d8Q Bg4 Qd2 Rd7 Qe8 Rd8 d7 Qh7 Rb1 a1Q Rb2 Qh8 Ra2 Qc3+ Kb1 Qh7 Ra1 Qh8 Qa2 Qd2 Bf5 Qh7 Qf6 Qh2 Bg6 Rd2 Bc2 Qd3 Bd6+ Kc6 Qfh8 Bc5 Kb2 Bb6 Qfd4 Nf4 Qh6 Nd5 Qf4 Ndc3 Qhf6 N3e2 Qeh8 Ra8 d8Q Ra7 Qde8+ Rd7 Bb8+ Kc5 Qh4 Qe4 Qhh8 R2d6 Rd4 Qd3 Bb1 Rd8 Qhh5 R6d7 Bg2 Qg1 Qh1 Qh2 Bc7 Be6 Bh3 Bb3 Be5 Bd1 Bd6+ Kc6 Qc4+ Bc5 Nc2 Ra3 Bd2 Ra4 Qcg8 Bb6 Qge6 Rc4 Ra6 Ra4 Ba5 Ra1 Q6g8 Qh7 Qa2 Qd3 Bb8+ Kc5 Na3 Bb3 Be5 Bd1 Bd6+
1K2n3/1NB2NN1/RR3bQ1/4pN1P/1B1pb3/1k1qqB2/2bnBrr1/2Q1nB2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 g5 Kd4 b5 Ke5 d5 c4 e6 f4 d4 h4 g4 a4 g3 c6 b3 f6 b4 f5 g2 c5 b2 c7 b3 h6 Qe8 h7 Qc6 a5 Bg7 a6 Qd7 a7 Ne7 c6 Rg8 h8N+ Kf8 h5 Qd8 Ra6 Bh6 f7 Rg5 Ne2 g1Q Qc2 Ng8 Nd2 Ke7 f8N b1B Nc4 b2 Nd6 Rg3 Bf4 Rg2 Nhf7 Qe8 Ng3 Bb7 c8B Nf6 c7 Be4 Nb7 Bg7 Bd7 Qh2 c8Q Qh3 Bdb5 Rf2 Q2c6 Bbc2 Bbe2 b1N Rb6 Na6 Rg1 Rb8 a8B Nb4 Ra6 Rg2 Qb6 Ba4 Qc1 Nc2 Qc6 Ne1 Q6c2 Qc8 Rb6 Qc3 Rh1 Ke8 Kd6 Qd3 Kc7 Nd2 Bd6 e5 Ne6 Rd8 Q2b1 Rd7+ Kb8 Bc2 Bc7 Ke7 Ra6 Bh8 Ng7 Ne8 Rg1 Rd6 f6+ Kd7 N3f5 Qhe3 Rh1 Rb6 Rh3 Kc6 Rg3 Kd5 Rg6 Kc4 Rh6 Re6 Qb6 Bf3 Qc6+ Kb4 Qe4 Kc3 Qg4 Re7 Qg6 Be4 Nf7d6 Qg3 f7 Rg1 f8B Qgf3 Qh7 Qc4 Nh4 Kb4 Nd8 Bed3 Nge6 Qe3 Bh1 Reg7 Nhf5 Kb3 N6f7 Be4 Bb4 Qcd3 Nb7 R7g3 Rf6 Rf3 Qg6 Rf2 Bhf3 Rgg2 Nbd8 Bg7 Nb7 Bf8 Neg7 Be7 Rfe6 Bf6 Reb6
2bN2KB/4b3/Qn4n1/r1PQB1N1/1bB3R1/1Q5q/B1Rp1rpn/3QQkq1 b - - 0 1 illegal: No possible last move
3b1q2/2Q2b2/b2N1BB1/QqPRK1R1/Q2Q1R1p/1n3rrk/RNnnp3/2R5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 a5 Ke4 e5 f4 h5 g4 d6 b4 h4 c4 a4 g6+ Kf6 g5+ Ke7 c5 a3 f6+ Ke6 g7 d3 b6 d2 b7 a2 f5+ Kd7 f7 Qa5 g6 Nc6 b8R Ra7 f6 Ke6 b5 Ra8 b6 Rh7 b7 Nb4 Bb2 Nc2 Nf3 Be7 f8Q Qb5 f7 Bd8 Bd3 Ra3 Ne1 Rh8 Nc3 d5+ Kf3 d4 Ke4 Kf6 Qe8 Kg5 f8R Rb3 Rc1 a1N Rf4 Rh5 Kd5 e4 Rh2 e3 Ke5 Nf6 g8R Ne4 g7 Rh6 Ra8 Rg6 b8Q Ba6 Qc7 e2 Rhf2 Kh5 Rf5+ Kg4 R2f4+ Kh3 Qa5 Nf2 Ne4 Rg3 Nd6 Ne4 Qf7 Ra3 Qfc7 Nb3 Rg5 Rf3 Rh8 Rg3 g8Q Rf3 Rhh5 Rg3 Bc4 d3 Bf7 Rf3 Bg6 Rg3 Ng2 Rf3 Qg1 d1B Ne1 d2 Nd3 Nbd4 Rgg4 Rg3 Kd5 Rc3 Nc4 Ne1 Qab6 Bc8 Ra2 Ba6 Qa5 Bb3 Re5 Nec2 Rgg5 Qb4 Qe8 d1Q Rfg4 Qf1 Qea4 Qf8 Rf4 Nd2 Ba1 N2f3 Ke4 Qb6 Nd6 Bf7 Rd5 Qb5 Qd1 Nb3 Kf5 Rc4 Bf6 Rc3 Nb2 Re3 Qd3 Nfd2 Qdd4 Ref3 Ke5
7n/2B1b3/Q1NrQk2/2p2P1R/1n3q1R/R1rNN1Nq/b1R1KbBp/3N2r1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 f4 h5 b4 e5 d4 a5 f6 c5 d6 a4 f5 e4 b6 a3 g5 a2 b5 h3 d7 h2 b7 h4 d5 e3 d6 h3 b6 e2 Qa4 Qe7 d8R Qe4 d7 Qe6 Bg2 Rh4 Bf4 Bd6 Nc3 Ra5 Nd1 Bf8 Bc7 Na6 b8N Qe5 b7 Bd6 Nc6 Re4 b8Q Nh6 Rh8 Qd5 d8R Nb4 Qb6 Ng4 Rh4 Qe5 Qa3 Be7 Rd2 Rf4 Rc2 Rf3 Qb3+ Be6 Qa6 Nh6 g6+ Kf8 f7 Kg7 f8N Qf4 Qd5 Kf6 g7 Rc3 Ng6 Nf7 Nge5 Nh8 Nd3 Rb5 Qe4 Rb6 Qe3 Bd5 Kd2 e1B+ Ke2 Bf2 g8N+ Kg5 Nh6 Kf6 Na5 Rd6 Ng4+ Kg5 Qe4 Be6 Nge3 Kf6 Nc6 Bd5 Rb1 a1R Rb3 Rb1 Ra3 Ba2 Nf3 Rc1 Nd2 Ra1 Ndf1 Rc1 Rg1 h1Q Qec4 Qhh2 Rh1 Qhg3 Rh5 Qgh4 Ng3 h2 Rf1 Qh3 Qg8 Bg1 Rf3 Bf2 Qe8 Qg5 Rf4 Rb1 Rfh4 Qf4 N1b2 Rg1 Nbd1 Ng6 Qg8 Nh8 Qe6+
4Rrq1/NN1R1b2/k7/NP3NRp/pn3Nr1/Q2RnbQ1/B4b2/1KB1qr2 b - - 0 1 illegal: No possible last move, all moves rejected
1RnBrrq1/QR1bRBnk/2b1Bq2/p4b2/1B1NQR2/5p2/5P2/2B1N1nK b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 b4 Kf8 g4 Kg7 b6 e5 b7 a5 b5 h5 b6 c5 g5 f5 d7 f4 g6 e4 d6 h3 d5 c4 Nf3 c3 Qc2 h2 Bc4 e3 Kf1 h4 Kg2 e2 Nbd2 e1Q Nd4 Qe5 N2f3 Nc6 b8R Qef6 b7 Nce7 Qe4 c2 Re1 Nf5 Ra4 Nge7 Kh1 Qe8 d8R Rf8 d7 Qef7 d6 Qg8 Bd5 Kh6 g7 Kh7 Bf7 Re8 Bd2 c1N Bb4 Ne2 Rb1 Rf8 Re8 Ng1 d8B Bd7 Ne1 Nc8 Re7 Re8 Bb6 Rf8 B6c5 Re8 Ba3 Rf8 Bcb4 Re8 Kg2 h1B+ Kh2 h3 Bc1 Bf3 Rb3 Bg4 Kh1 h2 Rb1 Bc6 d7 Rf8 d8B Bd7 Kg2 h1B+ Kh2 Bg2 Rb2 Bf1 Kh1 f3 Be6 Bfb5 Rb1 Qgf7 Rb2 Bbc6 g8B+ Kh8 Rb1 Ng7 Rb3 Q7g6 Bgf7 Kh7 Bc3 Qf4 Qe3 Bd5 Nb5 Na7 Rc8 Qgg5 b8Q Qgf6 Bb6 Qg3 Rf4 Nf5 Qe4 B5c6 Nd4 Bh3 Rb5 Qg8 Bb4 Bg4 Qb7 Bh3 Rc7 Rae8 Qa6 Nc8 Qa7 Nd6 Rc8 Bg4 Rb8 Nc8 Bd8 Bh3 Qe3 Ng7 R5b7 Bf5 Qe4
1K1QbQ1q/rQR1bR1N/QqB1BNpn/3p1bP1/1R3kq1/3n1r2/5Q2/5R2 b - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 Nf6 axb5 Ng8 f3 Na6 f4 Nb8 g4 e5 fxe5 h5 Bf4 h4 Bg3 hxg3 Kd2 Ke7 Ke3 Ke6 Kd4 d5 c4 f5 b4 a5 h4 f4 e4 a4 c6 f3 c7 g2 b6 g6 h5 a3 b5 a2 b7 f2 h6 Qh4 c5 Nf6 c6 Bg7 Kc5 Ra6 h7 Qh3 b6 Rd8 h8Q Bd7 c8Q Nh7 c7 Ng5 Qe1 Qg3 Qf8 Re8 Nf3 g1Q Nbd2 Bf6 Bh3 f1B+ Qf2 Bd3 Rf1 Nc6 b8R a1Q b7 Ra7 Kb6 Q3g2 Qd8 Qa3 c8R Qc3 Kc7 Qb3 Qd6+ Kf7 e6+ Kg7 e5 Kh6 e7 Rg8 e8B Be6 Ne4 Be7 Nf6 Nh7 Ng5 Bef5 e6 Ne5 Qa6 Rf8 Bc6 Bb5 Rh2 Nd3 Rh1 Ba3 e7 Qb2 e8Q Be7 Rh2 Qe4 Rg2 Qbd4 Rg3 Qe6 Rf3 Qg8 Rf4 Qh8 Qed7 Qc5 Rb4 Qg2 Ra8 Qb6+ Kb8 Qe4 Rc7 Qed4 Nfe4 Nf6 Nh7 Ng8 g5+ Kh5 Q7c8 Rf7 Qf8 Nh6 Qcd8 Bd7 Be6 Rf3 Qe2 Kh4 Nef6 Kg3 Qf2+ Kf4 Qaa2 Ra3 Ra7 Ba4 Qc4 Bc2 Qa6 Be8 Ka8 Qe4 b8Q Ra1 Qbb7 Ra3 Rbb1 Qf5 Kb8 Qg4 Rb4+ Ke5 Qc4 Nf4 Rd7 Bf5 Qca2 Bc5 Rf7 Nd3 Qc4 Be7 Qb5 Qc5 Qa8 Qb6+ Rb7 Ra7 Qa6 Qbd4 Rc7 Kf4 Ne4 Qe3 Q8b7 Qb6 Nef6+
B1q1Q1br/1Q4nq/rB1R1p1n/4p3/2R3RP/2QnR2N/Q1N1b3/QK3kb1 b - - 0 1 illegal: No proof kernel
b2QR2K/1RbqqN1R/1B1p1N2/3Qr3/Bk2B1b1/RRpP4/1rn2q2/4n1B1 b - - 0 1 illegal: No possible last move
1b2rQBR/1kq1Nnq1/r1pnB1q1/NNQ3p1/6PB/1r2b1K1/2R5/1BN2B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 d5 fxe5 Bd7 c4 Bf5 h5 Bg6 hxg6 dxc4 Kf2 Kd7 b4 Kc8 e4 a5 d4 h5 g4 f5 d5 a4 g7 a3 e6 f4 b6 f3 d6 h4 e5 a2 e7 c3 e8B h3 d7+ Kb7 b5 h2 e6 c2 e7 Na6 Qd6 Rc8 Bg6 Rh4 e8B Qe7 d8Q Qe6 Bc4 Ra8 Bd2 c1Q Bef7 Rh6 Nc3 Nc5 Be1 Qf4 Rd1 a1B Nge2 Qe8 Qe5 Bd6 Nc1 Qf6 Qde7 Kb8 b7 Qf5 Rd2 Qf6 Bb1 Qf4 Qf8 Ne4+ Kf1 f2 Kg2 f1R Qc5 Qf6 Rc2 Rf3 Bf1 Rg6 Bf2 Nh6 g8B Qg7 B7c4 Bf4 Bb3 Rga6 Bbe6 Rd3 Bg3 Be3 Kf3 Rb6 Bf2 Ka7 b8N Qeg6 Nd7 Nf7 Ne5 Re8 Nc4 Kb8 Be1 Ra6 b6 Ka8 Nb5 Rb3 Bf2 Be5 b7+ Kb8 Rg1 h1Q+ Rg2 Qh4 Rh2 Bd6 Rh1 Qh2 Bg3 Qd2 Rh8 Qa5 Bh4 Qb6 Nba3 Ka7 b8N Kb7 Nc6 Bg3 Ne7 c6 Kg2 Bb8 Nb5 Ned6 Kg3 Qc7 Na5+
2b1BN1B/K2N2n1/P1q1nN2/N1Q1p1Br/p3qQR1/1kB5/Rb5b/B1r3q1 b - - 0 1 illegal: No proof kernel
4qBN1/B5R1/pP1nqn2/2r1N2Q/1qNk1p2/1R4r1/1N1BK1Qb/1bB2n1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 d4 Kd6 b4 c5 e4 f5 b6 g5 h6 c4 e5+ Kd7 h5 a6 h7 c3 e6+ Kd6 b7 g4 e7 f3 e8N+ Ke7 d6+ Ke6 d7 Kd5 b5 f4 b6 c2 h6 f2+ Ke2 g3 Nc3+ Kc4 d5 g2 d6 Qg5 d8Q Bg7 d7 Qf6 Rb1 Ne7 Nf3 g1Q Na4 Rg8 h8N Qf8 h7 Be5 Bg2 f1N Nb2+ Kc3 Nd2 Qh2 Rg1 Qhh6 Nf6 Bd4 Ndc4 Rg3 Ng6 Nf5 h8B Qe8+ Nge5 Nd6 Ng8 Qhe6 Bh1 Bc5 Rg2 Bg1 Qg5 Bh2 d8B Nd7 b8B Nf6 Be7 Bd7 Bd2+ Kd4 Ba7 c1Q Bf8 Qc3 Qh5 Rb8 Qc2 Rc8 Qcg6 Rc5 Qc2 Rf3 Rg7 Qb4 Qcg6 Rh3 Qg2 Ba4 Ra1 Rg3 Ra3 Bc6 Rb3 Be4 Bc1 Bh7 Rd7 Ne4 Bf6 Bg6 Bg5 Rg4 Bh4 Nf6 Rg7 Bb1 Be1 Rg3 Bed2
B6K/r2b1RNp/Q5Bq/6R1/1b1BNpr1/2Q2n2/qB1RRP1B/kq2nb2 b - - 0 1 illegal: No possible last move, all moves rejected
1r3n2/1RQRb1rp/1Rqp2n1/B1qRqQ1B/1bNkr3/1Q6/2Q4P/1R1K3N b - - 0 1 illegal: No possible last move
1n3k1b/1qb1q1rp/p1Bn1B2/Q4QQ1/1Q3P2/3R1bN1/1K1BQ1nR/N3Br2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 d4 c5 Kd2 c4 Kc2 c3 g4 e4 g5 h3 d6 e3 g6 h2 d5 e2 g7 e1B f6 a6 d7+ Kf7 b6 Bc5 b5 Ne7 d6 Kg8 b7 Qe8 d8Q Qf8 b6 Bd4 d7 Bc5 Bb5 Nec6 Qe2 Na7 Nd2 Nbc6 b8B Bd6 b7 Qe8 Qa5 Qd8 Nb3 Bc7 Bd2 Qe7 d8B Bg4 Rd1 Nc8 Na1 Nd6 f4 Bf3 Ba7 Nb8 Bf2 Ra7 Bc6 Kf7 Kb1 c2+ Kb2 c1N Bh4 Rg8 Bg3 Nd7 b8Q Ke8 Qbb4 Nd3+ Ka2 Bf2 Bh4 Bd4 Bhe1 Kf7 Kb1 Nb8 Kc2 Kg6 f7 Re8 f8Q Bc3 Bf2 Ne1+ Kb1 Ng2 g8Q+ Bg7 Qff5+ Kh6 Bg3 Bh8 Bge1 Rb7 Qgd5 Kg7 Kb2 Rg8 Qg5+ Kf8+ Qde5 Rg7 Qef5+ Qf7 Bf6 Qe7 Be3 Rb5 Rd3 Rc5 B3d2 Rc1 Qee6 Rd1 Ne2 Rc1 Ng3 Rd1 Rg1 h1Q Qe2 Rc1 Bf2 Rf1 Bfe1 Qh5 Rh1 Qhf7 Rh2 Qd5 Bb5 Qb7 Bc6
1bKN1Bbk/3N2p1/2n1BpR1/q2B1r2/3r2q1/4Qq1N/Qbn1P3/R1N2BB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kf3 d5 Kf4 d3 c4 a4 b4 f6 h4 Kf7 e6+ Ke7 Kf5 d2 h6 a3 h5 d4 b6 d3 b7 a2 h7 Qd4 c5 Ra5 b5 Ra4 b6 Ra3 c6 Ra6 c7 Qa4 h6 Nc6 b8B Ra8 b7 Qb4 Nc3 Na7 Qc2 d1Q Nh3 d2 Ba3 Qd6 Rg1 Qe1 Rg6 Nc6 Ba7 d1Q b8N Nb4 Bg1 Q1d4 Nd7 Ra4 Qb1 Ba6 c8B Nc2 Qb6 Qdh4 Qe3 Bc4 Bb4 Ke8 e7 Kf7 Bb7 Qdg3 Bd5+ Ke8 Ke6 Qf3 Kd6 Qhg4 Kc7 Ra5 Be6 Rf5 Kc8 Qd2 Nb1 Qdd5 Nd2 Qa5 Nb3 Bd5 Nc1 Bb3 Rb1 a1B Bd5 Be5 Ra1 Ba2 Bc6 Kf7 e8B+ Ke6 Be4 Bfd6 Bf7+ Ke7 Bb3 Bb2 Be6 Ke8 Ba3 Bb8 B4d5 Bc4 Bf8 Ne7+ Kb7 Rg8 h8N Nc6 h7 Bb3 Nf7 Ba2 h8Q Bb3 Bb4 Ba2 Nc5 Kf8 Kc8 Bc4 Qh7 Rh8 Qh5 Kg8 Nd7 Ba2 Qhg5 Rh4 Nd8+ Kh8 Bf8 Qgg2 Qb3 Qb5 Qge3 Rb4 Bc4 Qgg4 Bg8 Qa5 Qa4 Bb3 Qa2 Ra4 Ba6 Bf7 Bc4 Be6 Bd5 Rc4 Bf7 Rd4 Be8 Bg8 Bef7 Qge4 Bfe6 Qfg4 Qea3 Qef3 Qe3
1q1Nn2N/5p1q/1NB3k1/1q1r1n2/1nBbNB2/1KQ1Q1PB/pR6/rb2R1N1 b - - 0 1 illegal: No possible last move, all moves rejected
n2b3Q/3rpK2/QPkB2pB/3r1R1N/3q1Q2/n3NrQB/4B2n/2QbqR2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 d5 Kd3 Kd7 c4 a5 h4 g6 f4 a4 b4 a3 f6 a2 h6 Rh7 f5 Ra3+ Nc3 Ra8 c5 Na6 h5 Bb7 c6+ Kd6 f7 Qb6 c7 Nb8 c8B Qc5 f6 Ra3 Nh3 Rg7 h7 Qc7 h8B Qd8 h6 Ba6 h7 Nh6 Nf4 Ra5 Bch3 Ng4 Nh5 Nd7 Bh6 Nb6 Rg1 Nh2 Rg5 Bc8 Qd2 Bg4 Nd1 Rg8 Qe1 Bg7 f8Q Na8 f7 Qb6 Qc8 Rf8 Qa6 Be5 Qc3 Bg3 Ne3 Bf4 Rd1 a1N Qc1 Nc2 Be5+ Kd7 h8Q Qc5 Ng2 Na3 Bb8 Bc7 Re1 Re8 f8Q Bd8 Qf3 Rg8 Bf4 Re8 Qg3 Rf8 Ne3 Rf6 Be5 Rf4 Rf5 Qb6 Kd2 d3 Kc3 d2 Bc4 d1Q Rf1 Qd6 Bd3 Rf2 Kd4 Qe1 Bef4 Qb6+ Ke5 d4 Bc4 d3 Kd5 d2 Be5 Bd1 Be2 Bc2 Bc7 d1R+ Ke5 Rd6 Bb8 Rc6 Bd6 Rc7 Kd5 Rb7 Ke5 Kc8 Ke6 Rf3 Kf7 Qc5 b6 Kd7 b5 Ra7 b7 Bd1 b8Q Qd4 b6 Rd5 Bc5 Kc6 Qbf4 Rad7 Bd6+
1K1BBN1b/3p1qBn/r1R4R/4NP1b/1B4Qn/k3p2r/1qRq3Q/3R1bR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 Ke7 Ke4 Kd6 h4 Kc5 f4 Kb4 Kd5 a5 c4 g5 h6 d3 c5 a4 c6 e4 h7 g4 f6 d2 c7 a3 f5 g3 f7 a2 h5 g2 h6 Ba6 c8R Be7 f8B Ra7 b6 Bb7+ Rc6 Ra8 Bc4 Ra7 Ne2 g1Q Na3 Qe1 Nf4 Bc8 b7 Ra8 Rg1 Qh4 Ng6 Qc7 Qg4 d1B Bg5 Bf3 Rad1 Bc5 Bd8 Ka4 b4 a1Q b5 Qe1 b6 Bd4 Bb4 Qb2 Nf8 Bf6 Ba2 Bd4 Nc4 Qed2 Ne5 Ra6 Rc2 Qcc3 Kd6 e3 Bf7 Qc4 Be8 Nc6 Kc7 Qf7 b8Q Nf6 b7 Ne7 Rc6 Ng6 Rc2 Rg8 h8B Nh4 Bg7 Rh8 h7 Kb3 Qh3 Bh5 Qg4 Rg8 h8R Nh7 Qa7 Ka4 b8R Bb7 Qb6 Bg2 Qh6 Bf1 Rb6 Bc3 Kb8 Bd4 Ba5 Ka3 Qhf4 Bc3 Qh2 Bd4 Bh6 Rg6 Bg7 Rh6 Bb4+ Kb3 Rb1 Rg6 Nc6 Qf6 Qe4 Qf7 Be5 Ng5 Rh6 Nh7 Rd1 Rg3 Qg4 Rh3 Bh8 Bf6 Ne5 Ka2 Rbc6 Bg7 Rhd6 Bf6 Bg7 Kb3 Bh6 Bh8 Bg7 Ka2 Rh6 Kb3 Bc3 Ka3+ Bb4+
3q4/p7/k1NbRNBN/2NbB2Q/BnnQ2q1/4prq1/RP2N3/2KB2nr b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 f4 Kd7 g4 e5 d4 h5 Kd2 c5 g6 Kc7 g5 Kb7 f5 h4 b6 c4 d6 h3 g7 h2 f6 Qe8 g6 Bd7 d5 Qf7 Be2 Bh3 d7 Nc6 d8N+ Kb8 d6 Bf5 d7 Bb4+ Nc3 Be6 b7 Bd6 Nd5 Qe7 f7 Na5 f8N Nf6 Nf7 Qd8 g8B e3+ Kc2 c3 g7 e4 Nh6 Bf7 Ra2 Nc4 Ne6 Rh7 Bf3 e2 Nc5 e1Q Bf4 e3 Ne2 Qg3 Kc1 Rh8 Rg1 h1Q Bh7 Qhh4 g8B Qhg4 Bg6 Rh7 Be5 Be6 Ndf4 Nd5 Nh5 Nb4 Nf6 Bd5 B8f7 Kc7 b8N Kb6 Nc6 Rh8 Be8 Kb5 Nhg8 Rh1 Nh6 Kb6 Na4+ Ka6 Rg2 Qb6 d8Q Qa5 Qd7 Qd8 Qf5 Rb8 Qh5 Rb7 Rh2 Rf7 Rh4 Qf5 Re4 Qfg4 Ng1 Rf8 Qd4 Rf7 Bd1 Rf8 Ne2 Rf7 Kb1 c2+ Ka1 c1N Kb1 Nb3 Bd7 Nbd2+ Kc1 Nf3 Be8 Ng1 Nc5+ Kb5 Bf4 Kb6 Re6 Rf8 Be5 Rf7 Nfg8 Rf3 Nf6 Kb5 Nb8+ Kb6 Bea4 Ka5 Nc6+ Kb6 Ncd7+ Ka6 Nc5+
KN5n/p2N1kqQ/3BnN2/1Q2b2p/1q2P1q1/Rr1n3B/R1r2B2/NB3b1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 c5 d4 h5 g4 c4 b4 c3 d6 c2 d5 Nd7 g6 Qa5 g7 Qb6 g5 Kf7 g6+ Ke8 Bh3 Rh7 Ra3 Ngf6 g8B Ne4 g7 Qc5 b6 Qd4 b5 Qc3+ Be3 c1N b7 Qe5 b8N Nec5 b6 Na6 b7 Nc7 Rh2 Qa1 Nd2 Nf6 d7+ Ke7 d8B+ Ke8 d6 Bd7 Qa4 Rh8 Nb3 Bb5 Bh7 Ng4 g8B Ne6 Nd7 Rb8 Be7 Bg7 Bf2 Be5 e3 Qb1 Ne2 Nd3 Nc3 Nh6 Ne4 Nf7 Na1 Qb4 Bf8 Rc8 b8N Rc2 Bg6 Bc4 Qb5 Rh6 B6h7 Nh8 Rg2 Rg6 Rh2 Rg1 Rg2 Rb1 Nef6+ Kd8 Bg6 Rb3 B8h7 Nb2 Rh2 Bf1 Bg8 Nd3 B6h7 Nec5 Bd5 Ne6 Qb7 Qc5 Bg3 Nb4 Qa6 Rcc3 Bg2 Bb5 Bh3 Qb6 Rha2 Qb7 Nb6 Qg7 Be4 Bc4 Bb1 Rc2 Qb5 Bd3 Bg6 Bc4 Be8 Bd3 Bc6 Be2+ Kf2 f3 Bh4 f4 d7 Qg6 Bg3 Qe4 Bd6 Nd3+ Kg1 f2+ Kh2 Qh7 Bh1 f1Q e4 Qe1 Kg2 Bf1+ Kf3 Qb4 Be1 Rc6 Bg3 Bg2+ Ke2 f3+ Ke3 f2 Bh4 f1Q Bf2 Nec5 Bc7+ Ke7 d8Q+ Kf7 Qd7+ Kg6 Bd6 Qd1 Qf5+ Kf7 Nb6d7 Qg7 Qh7 Qg4 Bg3 Qa5 Bf2 Bg3 Kd4 Be5+ Kd5 Ne6 Ne8 Rc2 Nef6 Re2 Kc6 Qb4 Kb7 Bf1 Ka8 Rd2 Rb2 Rc2 Rba2
NQRN4/R3B3/1K3P1p/5nNr/2Rp2k1/2QRrr1q/1n1b1rb1/1N2NBr1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Kc4 e5 b4 a4 f4 e4 g4 d6 b6 d5+ Kb5 a3 c4 e3 b7 a2 f6 Ke6 c5 e2 f5+ Ke5 c6 e1R g6 h6 g7 d3 f7 d2 c7 Kf4 f6 d4 g5 Bd6 f8N Rh7 g6 Re5+ Kb6 Re2 b5 Bd7 Ne6+ Kg3 Ba3 Rg2 Ng5 Nc6 b8Q Bb4 Qb3+ Kg4 Qc3 d1R Rh3 Rf2 Rd3 Ra5 N1f3 Nge7 g8R Nf5 g7 Qc8 Ne1 Ne5 Re8 Rdd2 g8R Bc6 Rh8 Qe6 c8N Rf3 Re7 Qb3 Rc7 Re7 Rd8 Bb7 Rc4 Rdf2 Rh8 Ng6 Rd8 Ree3 Rf8 Nf4 Rh8 Bd6 Bb4 Be5 Be7 Bd6 Re8 Bb4 Qb2 Qc2 Kc7 Nd5+ Kd7 Nc3 Kc7 Kh5 b6 Ra6 Bg2 Ba3 Qa8 Bb4 Nf7 Nd1 Nc3 Rf4 Nf3 Ra5 Qb3 Be4 b7 Ng7 b8N Nb2 Nb6 Rfe2 Rc8 Kg4 Nc6 Rh5 Qb8 Nf5 Ncd8 Qc1 Na8 Qh1 N7g5 Rf2 Kb6 Qh3 Nb5 Bc6 Na3 Bd2 Qc3 Be4 Rc1 a1R Rc2 Rg1 Nb1 Nd1 Ra2 Nb2 Bf1 Bc6 Ne1 Bg2 Ra5 R4f3 Ra7
5RNQ/n5P1/BBR2n1b/NBNp3r/rk1p2NB/5b1K/r4rB1/Qr3q2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 f4 e5 Kf2 Ke7 Kg3 Kd6 b4 h5 f6 a4 g6 h4+ Kh3 e4 g4 e3 f5 a3 c5+ Kd5 c6 a2 g7 e2 c7 Kc4 f7 d6 g5 Bd7 c8B Qf6 b6 Qd8 g6 Qf6 b5 Na6 b7 Rh7 b8N Rh8 b6 Kb4 b7 e1R Nc3 Nc7 Bg2 Ra3 Na6+ Ka5 b8N Re6 Bg5 Bc6 Nf3 Na8 Nd5 Nh6 g8B Re2 g7 Rc2 Rc1 a1R Ne7 Nb6 Rf1 Rb2 Nc5 Kb4 Ba6 Ra4 Ne5 Bf3 Ng4 Rf2 Rc2 R1a2 Qa1 Nc8 Nbc6+ Ka3 Bb5 Na7 Na5 Kb4 Bh7 d5 Ng8 Be7 f8B Qf7 f6 Bd6 Bhd3 Bf4 Bd6 Qf8 f7 Bc1 Kh2 h3 Bh4 Bd2 Kg3 h2 Bc7 h1R Bb6 Rg1 Kh3 Rh7 Nh2 Ng4 Be2 Nf6 Ng4 Bh6 Rcc1 Qc8 f8Q Qf5 Ba6 Qb1 Beb5 Qd3 Rfe1 Qf1 Re8 Be3 Rc8 Rh5 Rc6 Bh6 Re1 Qd3 Re8 Rb1 Ra8 Qf1 Qe8 Rf5 Qh5 Rg5 Rf8 Re5 Qg6 Rf5 Qh7 Rh5 Qh8
BbN1N3/Pn2p3/n2r1rqN/1Rbk4/1B3p2/1bRBN1b1/QQ6/BN3K1b b - - 0 1 illegal: No proof kernel
6BB/Q2Rn3/r1k1N2b/rNN3Rn/1n2P2q/1KBBbp2/Nb1Q3p/1b5B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 b4 Kd7 g4 c5 d4 a5 Kd2 h5 Kc3 f5 b6 a4 b5 f3 g6 f2 d6 a3 b7 c4 g5 h4 b6 f4 g7 a2 g6 h3 d5 h2 Na3 Rh7 Bb2 Rh5 Nb5 Ra7 Qd2 Rh7 Rd1 Na6 b8N+ Ke8 d7+ Ke7 b7 a1B d6+ Ke6 e4 f3 Bg2 f1N Ne2 Rh5 Nc1 Ke5 Rg1 Nc7 Na6 Ng3 b8Q Rg5 Bh1 Ne7 g8B Bh6 g7 Nh5 Nc5 Ba6 Na2 Ncd5+ Kc2+ c3 Kb3 Nb4 Bc4 Qh8 g8B Qf6 d8N Rf5 Ka3 Qh4 Kb3 Rf6 d7+ Rd6 Bc1 c2 Nde6 Bb2 d8B Ra8 Qa7 Rd5 Na3 Kd6 Bd3 Kc6 Ba5 Be3 Rg5 Rf5 Be2 Bd3 Nb5 Re5 Qb8 Ra6 Qa7 Bc3 Bb2 c1B Ba1 Bb1 Bd3 Rf5 Bb2 Bg7 Bc3 Bb2 Bc7 Bh6 B7e5 Rf8 Bh8 Ra8 Rdg1 Ra5 Rd5 Ra6 Rgg5 Ra5 Rd8 Ra6 Rd7 Ra5 Qb8 R8a6 Qa7
N3Q1Br/1Q6/1R2qQb1/1R2r1n1/1kp1rBbP/n1N1QB2/1pb2Q2/2B1bK2 b - - 0 1 illegal: No possible last move, all moves rejected
2Q2Q2/b2Rr2N/1k2N1K1/1npNR3/1B2nPN1/1B1p4/r2bR1nR/bb1R1q2 b - - 0 1 illegal: No proof kernel
2Bn1nNQ/4QrbQ/5BR1/pk1rRQ1P/6RR/1K1R2b1/1pn1N3/1b4bq b - - 0 1 illegal: No proof kernel
1b3N2/2B1BR2/q1B1r2P/1N1RB3/R1b1rp1R/n1nb1k1b/pRQ5/1n1Q2K1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 b4 Ke6 h4 Kd5 c4+ Ke4 h6 f5 c5 a5 e6 g5 c6 d5 e7 d3 e8R+ Qe7 h5 d4 h7 f4 b6 a4 b7 d2 h6 g4 c7 d3 b5 a3 b6 Qe6 Rh4 Nc6 b8R Ra6 b7 Na5 Nh3 g3+ Kg1 g2 Re7 Nc4 Rf7 Ne7 Ng5+ Ke3 Nc3 a2 Nb5 Nd5 Ba3 Nc3 Be7 Nb1 Ra8 Qd6 b8B Bh3 c8Q Nca3 Qcc2 Ra4 Ra5 Qa6 Ne6 Re4 Bc7 Rg8 h8B Rg6 Bc3 Bg7 Bb2 Be5 Nf8 Re6 Ra4 Bd6 Kh2 g1N Bg2 Kf2 Be5 Ke3 Kh1 Kf2 e3 Ne2 Kh2 Nec3 Bf3 Rb4 Bc6 Rd4 e4 Rc4 Ba5 Bb8 Bac7 Ke3 Kg1 Rd4 Qf1 d1B Qe1+ Be2 Qed1 Nd2 Rc1 Kf3 Rb1 Rc4 Rb2 Ndb1 B5f6 d2 e5+ Re4 Bg7 Rf6 e6 Rg6+ Bg5 Rf6 e7 Rd6 e8R Re6 Qdc1 d1B Bge5 Bef1 Be7 Bc4 Rd8 Bde2 Rd5 Bed3 Q1d1+
2k1B1B1/bR3Q2/3NK1p1/rR1RB2R/2B1n1Qb/4b1nB/n1p1bPNq/6r1 b - - 0 1 illegal: No proof kernel
2r2k1B/1K1R2n1/2B2p2/5Pbr/2N2bR1/4Q1Q1/qpNn2Q1/RQbR1Qnb b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 dxe5 h5 gxh5 Nf6 axb5 Ng8 b4 cxb4 Kd2 a6 Kd3 d5 Kd4 g5 h4 g4 f4 g3 e4 b3 c4 g2 c5 Nf6 h6 Bh3 e6 Rg8 h5 Bg7 c6 Qe7 c7 Qd6 c8Q+ Ke7 b6 Qd7 Kc5 d4 b7 d3 Kb6 d2 f5 Bg4 h7 Ne8 h8Q Bh3 h6 Bb2 h7 Nc6 b8Q Qd5 e5 Nd4 Qc6 Rg5 Ne2 g1B Qg7 Bh2 h8R Bg2 Rh4 Rh5 Na3 Bf4 Qg3 Kf8 Rg4 Nf3 Nd4 Qc4 Rg1 Bh1 Bg2 Bg5 Rf1 Ng1 Ndc2 Qa4 Qbb7 Rc8 Nc4 Qa2 Qe2 Ba3 Bb2 Bf4 Bd4 Bc1 Qcf3 Bg5 Qff2 Bf4 Bc6 Bg5 Qfg2 d1N N4e3 Nf2 Nc4 Ne4 Rd1 Nd2 e7+ Kg7 e6+ Kg8 Bg7 f6 Bh8 Ng7 Qee1 a5 Qef1 a4 e8R+ Kh7 Re7 Kg8 Qbb8 Kf8 Ra7 a3 Rb1 Qa1 Rd7 a2 Ka7 Qb2 Ra1 Qb1 Qb6 Qb2 Kb7 Qa3 Rb1 a1B Qb5 Bd4 Ra1 Bde3 Qb6 Qa2 e7+ Kg8 Qb5 Bef4 e8Q+ Kh7 Qee2 Kg8 Qee5 Kf8 Qb6 Rh4 Qb2 Rh5 Qb1 b2 Qbe3
6Q1/2r4Q/kr1pQ3/nQb1nB1P/b6B/q2pNRKb/Q1Bn1Nn1/6RB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 c4 a5 b4 g5 h4 g4 e4 d3 e6 a4 c5 a3 h6 a2 h5 d6 b6 f4 b5 f3 h7 Qc7 e7 Kd7 e8B+ Kd8 c6 Qe7 b7 Kc7 b6+ Kd8 e5 Bh6 e6 Nd7 b8Q Ngf6 b7 Ra6 Qc2 Rb6 Rh3 Ne5 Na3 Be3+ Kg3 f2 Nc4 Nd5 Bg2 f1B Bh1 Bc5 Bg5 Nf4 Bh4 Ng2 Ne3 Qg5 Rd1 a1N Qa2 Nb3 Re1 Rg8 h8Q Na5 Qh7 Rg7 Bg6 Qf6 Bf5 Rc7 Qa8 Be2 b8Q Bd1 Qa6 Ba4 Qb5 Rg7 Qa8 Kc7 e7 Qf7 e8Q Qb3 Qe6 Qa3 Rc1 Bd7 Qag8 Bc8 Re1 Kb8 c7+ Ka7 Rb1 Bd7 c8B Re7 Kf2 Rf7 Rf3 g3+ Kf1 Re7 Nh3 Rg7 Ba6 Bc8 Bb7 Rc7 Bc6 Bd7 Nf2 Bc8 Qbb2 Ka6 Qb4 Bd7 Qb5+ Ka7 Bce4 Nf4 Bd5 Rb8 Bfe4 Rb6 Qef7 Bh3+ Kg1 Rd7 Bb3 Rc7 Bc2 g2 Kh2 g1N Rg3 Ng2 Bf5 Kb7 Qfe6 Ka7 Rf3 Kb7 Rf4 Ngf3+ Kg3 Nd2 Rg1 Ka7 Rf3 Kb7 Qbb1 Ka6 Qb5+
1B1qbk2/B4N2/Pb2Q1p1/4r1np/2BB1RQr/K1b5/R2QnN2/1QQ2rr1 b - - 0 1 illegal: No proof kernel
1NN1NK2/5Q1P/nbR1R1B1/1bk1b1q1/r1n3p1/R2r4/1p2bN2/RRB2n1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 h4 g5 a4 b3 f4 e6 a5 b4 a6 c6 f6 g4 f7 b2 h6 b3 a7 Na6 h7 Qd7 f5 Ne7 h5 Qc7 h6 Nc5 f6 Qb6 Bd3 Qb7 Nh3 Rg8 h8R Qb5 h7 Qb7 Nf2 Bh6 f8R Bg7 Na3 b1B Bg6 b2 Re8 Na6 d3 Qb5 Nc4+ Kd7 Ke5 c5 d6 Kc6 d4 Bd7 Qg1 Nf5 Nb6 c4+ d5+ Kc5 Nc8 c3 Qh2 Bc6 d7 c2 d8N Ne3 d6 Nf1 d7 Qa5 Qh5 Bb5 Nc6 Qd2 Re7 Rd8 Nb8 Ba2 Rg1 Bac4 Qh1 Be2 Rhe8 Bh8 Rg7 Qh6 f7 Qh5+ Kf6 e5 Ke7 e4 f8Q e3 Rg8 Be5 Qf7 Qf5 Kf8 Qg5 Bd2 c1N Rh8 Nb3 Bc1 Bec4 Rb1 e2 Rg3 Nbd2 Ra3 e1B Nb6 Bg3 Raa1 Qh6+ Kg8 Nc7 Nc6 Qh3 Kg7 Bd5 Re6 Bf3 Rg8 Nc4 Rh8 Rac8 a8N Ba5 Rg8 Qh4 Rh8 Nd5 Nc7 Ra8 Rg8 Ra6 Rh8 Qg5 Rg8 Rda8 d8R Nb4 Rdd6 Be2 Rh8 R8a7 Ra8 Bh2 Ne8 Be5+ Kf8 Rd7 Rd3 Rd4 Nc8 Bb6 Nb8 Ra5 Ra7 Ra3 Rd7 Ra4 Rda3 Rd3 Rdd6 Na6 Rc6+
rQ1b4/6pk/QBnqR2N/1K1b1p2/1P2rB2/N1Q3n1/1RB1B3/2Qn1nbQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 d4 c5 Kd2 f5 Kd3 Kf7 Kc4 f3 e4 f2 b4 a4 e5 a3 e6+ Kf6 h6 Kg6 e7 a2 e8B+ Kh7 h5 Bb7 b6 Bd6 Nf3 Bc8 b7 Bh2 d6 Qd7 d5 Nf6 Bf4 Na6 b8Q Qb7 d7 Ng4 d8B Bg1 d6 Qd5+ Kb5 Kg8 h7+ Kf8 d7 Qf7 h6 c4 Na3 c3 Rh2 c2 Qc1 Ne3 Ne5 Qe7 Be2 f1N Nf7 Bb7 Bb6 Bd5 d8Q Qd6 Qf6 Nd1 Qc3 Rg8 Qbc8 Nb8 h8Q Nc6 Qh7 Rh8 Qa6 Rg8 Rb1 a1B Rb2 Rh8 Bd7 Re8 Rg2 Re4 Rg6 Rg8 Re6 Rh8 Qg6 Kg8 Qh5 Kh7 Qh1 Rb8 Q1d2 c1N Be8 Nb3 Qdc1 Ra8 Bd7 Ng3 Be8 Kg8 Bd7 Nd2 h7+ Kf8 Nh6 Ndf1 Ng8 Kf7 h8Q Kf8 Q8h2 Kf7 Nh6+ Kf8 Nf7 Kg8 Nh6+ Kh7 Qh5 Bd4 Qe8 Bf6 Qb8 Bd8 Ra2 Bb2 Be8 Ba1 B8h5 Bb2 Bd3 Ba1 Bc2 Bb2 Be2 Ba1 Qc4 Bd4 Qc3 Bg1 Rb2
k7/bNNnn1pK/1QQr1bQb/P1B2q2/QBBpQ3/3R1R2/1n6/2Bbr3 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 e5 Ke3 d5 f4 Kd7 h4 Kc6 c4 b5 a4 Kb7 h5 e4 h6 b4 a6+ Ka7 f6 g3 c6 b3 a5 g2 f7 b2 c7 Nd7 c5 Bb7 c8Q Ne5 h7 Nf6 c6 Be7 f8B Ng8 c7 Nf6 f5 d4+ Kf4 e3 Kg5 e2 Nf3 e1B Ra3 g1B Rd3 Nd5+ f6 Ng6 Nh4 Bd6 Qa4 Bc5 Nc3 b1N Qf5 Qc8 f7 Na3 Rhh3 Bef2 Rhf3 Ngf4 Qg6 Ne7 Nf5 Nh5 Nd5 Nc4 Nd6 Nf6 Be2 Qe6 c8Q Nd7 Qcc6 Rd8 Nc7 Nb2 Kh5 Rg8 h8Q Bh4 Qhh6 Bf6 Qce4 Bd5 Nb7 Bb3 Qec6 Bd1 Bf1 Kb8 a7+ Kc8 Qb6 Be3 Qhh7 Bh6 a8Q+ Nb8 Qe4 Rd6 Qhg6 Rh8 Qaa6 Nd7 Qa6b5 Kb8 Q5c6 Nc8 Be7 Re8 f8B Qd5+ Qgf5 Qe5 Kg6 Qf4 Kh7 Qg4 Qa6 Ba7 Qg6 Qf4 Qab6 Qf5 Ne6 Ka8 Be2 Rd5 Bb4 Ne7 Bf1 Ng8 Bfc5 Rd6 Rb3 Ne7 Bc4 Nc8 Rbd3 Re7 Nf8 Re5 Ne6 Ne7 Qg4 Re3 Qge4 Re1 Nc7+
B7/2R1P2q/1Nrb4/KB4bQ/2Qp2k1/1BnpBn1R/R2n4/NRb1rb1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 Ke6 c4 Kf5 e4+ Kf4 b4 f5 e6 d5 c5 g5 e5 a5 b6 d3 Kc3+ Kg3 e7 f4 e8B f3 h6 a4 b7 f2 e6 g4 h5 a3 c6 a2 b5 Be7 b6 Nf6 h7 Bd6 c7 Na6 b8R Bb7 c8B Nc7 h6 Be7 Nf3 Bc5 e7 Ra3+ Qb3 Ne6 Ne1 Ra6 Qc4 Nd4 Be6 Bd6 Bb5 Qg8 Rc8 Nf3 Bg2 f1N Rc7 N1d2 Nc2 Ba8 b7 Rc6 b8R d4+ Kb2 Kf4 Nc3 g3 Na4 Nd5 Nb6 Nc3 Rb1 Bb7 Ra8 Qg7 Bf7 Kg4 Na1 Rc8 h8Q Qh7 Rh3 Rb8 Bh1 g2 Qe5 g1B Qh5+ Kf4 Be6 Be3 Bd5 Rf8 Ra4 Rf5 Bf7 Rfc5 Ka3 Bc8 Kb4 Re5+ Ka5 Bd7 Nb3 a1B Ra2 Bb2 Na1 Bba3 Bg2 Re4 Rh1 Bh3 Bg8 Kg3 Bf7 Bg5 Bd5 Nf1 Be3 Bc1 Bg8 N1d2 Be6 Qf5 h7 Re5 h8R Qh7 Bg1 Re1 Be3 Nh2 Bf3 Bg2 Bed5 Bf1 Bd1 Nhf3 Bb3 Rc5 Ba8 Rc6 Qhf7 Kg4 Qfd5 Qg7 R8h3 Qg8 Qf7 Qh7 Qh5+
B2b1Qb1/k1PR2q1/1r1Q2pB/1N3r2/BNQnB3/6bQ/RBp5/2Knrr2 b - - 0 1 illegal: No proof kernel
Q7/KPBB1b1b/1rNn3n/3Rp1BN/1b1qR1b1/kBN2Q2/1n1p2N1/5r1B b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Kc4 d5+ Kc5 Kd7 g4 h4 f4 d3 b4 h3 c4 d2 b6 h2 g6 a4 b5 d4 f6 d3 f7 a3 b7 a2 g5 Rh7 b6 Ra4 f5 Rh8 f6 Ra6 g7 Rh5 Qf3 d1B Bg2 Rh7 g6 Bc2 Nc3 Ra3 Nh3 Rb3 Rd1 h1B Bg5 Rh8 Nf4 Nh6 g8N Ra3 g7 Nc6 b8B e5+ Ne7 Na7 g8B Bb1 b7 Nb5 Bc7 Rb3 Kb6 Nd6+ Ka7 Rb6 c5 d2 Re1 Bc2 Nh5 Bh7 c6+ Ke6 Rab1 a1N Re4 Nc2 Rb5 Ne1 Rd5 Qd7 Bb8 Qd8 c7 Nd3 Nc6 Bd7 c8B Nb2 Bc7 Be7 Bf1 Bg2 Bc4 Bh3 Bb3 Bg4 Ng3 Bh5 f8Q+ Bf7 Nh5 Ndf5 Bc4 Bb4 Bf1 Nd6 Bg2 Bf5 Bh1 Rh7 Bf4 Rg7 Be3 Rg1 Bg5 Rf1 Bh7 B7g6 f7 Bg4 Bg8 Bh7 Be3 Qh4 Bf4 Qf2 Qd8 Qd4 f8N+ Kf5 Ne6 Be8 Bd7 Beg6 Qa8 Bf7 Ng3+ Kf6 Nb8 Ke7 Nh5 Ba3 Be3 Bb4 Nef4 Qd3 Ba4 Qd4 Nc6+ Kd7 Ng2 Ke6 Ra5 Kd7 Bg5 Ke6 Nb5 Kd5 Nc3+ Kc4 Bb5+ Kb3 Ba4+ Ka3 Rd5 Be8 Be6 Beg6 Bd7 Bf7 Bb3
2Q2BN1/Rp1Q3b/1nqp1bQQ/4n3/1b4Q1/4b1KP/2rkN1nr/RN1N1B2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 f4 Kf6 Kf2 e5 a4 g5 a5 b3 c6 g4 h6 e4 h7 e3+ Kg3 d6 c5 b2 c7 e2 h3 Qe7 c6 Qd7 a6 Bh6 a7 Ne7 Be3 Re8 h8N Ng6 Nf7 Bg5 Nh6 Nh4 Bc1 Ng2 Ng8+ Kg7 f6+ Kg6 f7 Kf5 f8Q+ Ke4 f5 Bf6 Bd2 Kd3 Qf7 Re4 Qh5 Rc4 Qg6 Rc2 Ra6 Qe8 Ra4 Be6 c8Q Nd7 c7 Nb6 Qd7 Bd5 c8N Be4 Nce7 Qc8 Ra2 Qc6 Nd5 Re8 a8Q Rf8 Na3 b1N Bh6+ Nd2 Ne3 Kc3 Ra1 Ndc4 Qac8 Ne5 Bg7 Re8 Bf8 e1B+ Kh2 Bd2 Ne2+ Kd3 Nb1 Re7 Ra7 Re8 Qe1 Bb4 Qh4 Re7 Nd1 g3+ Kg1 Ne1 Qhg4 g2 Kf2 g1B+ Kg3 Be3 Rg1 Ng2 Rh1 Bg7 f6 Re6 f7 Bf6 Bh6 Re7 f8Q Rg7 Q6h5 Bh7 Qff7 Rg5 Bf8 Rf5 Qh6 Rf2 Nbc3 Kd2 Qfg6 Qb5 Rg1 Qc6 Nb1+ Ke1 Na3 Bc3 Nb2 Nh4 Bg2+ Kd2 Ra1 Bb4 Bf1 Rh2 Nd1 Ng2 Nb1+
N3bq2/P1BBr1Nn/3b1b1r/3Qr1kn/1pN3N1/pRN3R1/2B2Q2/2r1B2K b - - 0 1 illegal: No proof kernel
1Q2R3/3N1Qr1/bN2Bbq1/r1Q5/P2ppB2/K2B2Qn/2Bk2Bn/2R2rqr b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 f4 d5 g4 h5 c4 e5 Kc2 b5 Kb3 e4 a4 d4 c6 h4 g6+ Kf6 c5 h3 g7 h2 c7 Rh7 g5+ Kf7 g6+ Kf6 c6 Ra6 Bg2 Rh5 Qe1 Qe7 Nf3 Rh4 Nbd2 Qd7 Qg3 Qe8 Nc4 Nd7 Nfe5 Nh6 g8B Ng4 g7 Nb6 Be6 Rh7 g8B Nd5 Nb6 Be7 Rf1 Bb7 c8Q h1R c7 Ra5 Qb8 Ba6 c8B Nh2 Be3 Qf7 Rac1 Qg6 Kb2 b3 Ned7+ Kg7 f6+ Kh6 f7 b4 f8Q+ Rg7 f5+ Nf4 Qe8 Bf6 Qf7 Kh5 Rf2 Nh3 Bf4 Rf1 Bc4 Rh1 Bd3 Rf1 Kb1 b2 Ka2 b3+ Ka3 b1Q Rf3 b2 Bc2 Bd3 Ba6 Rh1 Bc4 Bf1 Be6 Ba6 Rc3 Rf1 Rc8 Rh1 Re8 Rf1 Qc3 Kg4 Bc4 Rh1 B4d3 Qa1+ Qa2 b1R Be6 Rf1 Qcc7 Qc3+ Qb3 Qe1 Qc5 Rh1 Bgf1 Kf3 Bg2+ Kf2 Qbc3 Qg1 Qb3 Bg5 f6 Bh4 f7 Bf6 f8Q Ra1+ Qa2 Rb1 Qf7 Ra1 Be5 Ke3 Bc7 Rb1 Qad5 Kd2 Qdd6 Rbb5 Qg3 Rb4 Ra1 Rb1 Bd6 Re1 Rc1 Rf1 Bf4+
1qQK2b1/3RQr2/8/BN1B2rP/R2knN2/1p2qRRN/3Nqp2/q2R1nb1 b - - 0 1 illegal: No possible last move
N1k5/Bn5R/r2QNq2/2Q1qpp1/3bRr1n/2nN1P2/bQN1n3/1BQ1K2Q b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 h4 g5 c4 d5 e4 Kd7 c6+ Kc7 h5 f5 e6 a5 c5 d4 f3 g3 h6 d3 h7 g2 e5 a4 e7 a3 e6 a2 Be3 Ra3 Ne2 g1N Nf4 Ra4 Na3 Nh3 Nc2 Qd5 e8N+ Kd8 b6 Ng1 c7+ Ke7 b7 Ra3 c6 Ra6 Ba7 Qc5 Ng7 Nd7 b8Q Ne2 Qb2 Qe5 Rh5 Kd6 e7 Nc5 Nge6 Nb7 e8N+ Ke7 Rb1 a1Q Qd2 Bd7 c8Q Bg7 c7 Ba4 Qdc1 Bb3 Qb8 Ba2 c8Q Bf6 Qc5+ Kd7 Rh4 Ne7 N8c7 Ng6 Na8 Bg7 Rh1 Nh4 Rh3 Rc8 h8Q Qf6 Q8e5 Rc7 Qh5 Kc8 Qed6 d2+ Kd1 Ng1 Bd3 Ne2 Be4 Qe5 Nd3 Qf6 Qg4 Rcc6 Qgg1 Ra4 Qh1 Rc4 Qba3 Qae5 Rb4 Bh8 Qab2 Bg7 Bd5 Rf4 Re4 Bh8 Bb3 Bg7 Na3 Bh8 Bc2 Bg7 Bb1 Bh8 Kc2 d1N Kd2 Ndc3 Nc2 Bg7 Qf2 Ra6 Ke1 Ng6 Rh7 Nh4 Qd5 Bf8 Qdd4 Bc5 Qd6 Bb6 Qfd4 Bc5 Qdb4 Bd4 Qbc5+
r2r3B/B2QB1N1/N2RrP2/q1bQ2K1/4B1p1/k2Q4/1r1p1B1R/qn2Qbn1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 f4 d5 b4 Kd7 h4 Kd6 c4 e5 c5+ Ke7 f6+ Kd7 b6 Kc6 h6 a5 f7 d3 Ke3 Kb5 h7 a4 b7 e4 c6 g4 f5 a3 Kf4 e3 h5 d4 h6 e2 f6 e1R c7 a2 Be3 Bd6+ Kg5 Ne7 f8B Qe8 Bf2 Nd5 Nd2 Ra6 Rh2 Nf4 Nh3 Ng6 Nb3 Ka4 b5 d2 b6 d3 Be7 Bb4 Bg2 Nh4 Nc5+ Ka3 Be4 Qa4 Nf4 Rd8 h8Q Nd7 b8Q Qa5 b7 Ne5 h7 Nc4 Ne6 Ra8 Qg8 Re3 Qf1 d1R h8B d2 Qe1 Rb1 Ng7 Rb2 Qd5 Re2 Rb1 a1Q Na6 Bc5 Qa7 Bd7 c8Q Bb5 b8B Re3 Qcd7 Nf3+ Kh5 Ng1 Kg5 Re2 Q7f5 Re3 Qad7 Re2 Ba7 Re3 Bf3 Re6 Bg2 Nb6 Bf3 Bf1 Be4 Na4 Qd3+ Nc3 Qfd5 Ra2 Rb6 Rb2 Qde2 Nb1 Rd6 Bg2 Qec4 Bf1 Qcd3+
5N2/1Q1B3n/bq1pQn1B/1n2N1b1/2K1N1BP/1RBN2r1/1qBpk2n/1R3r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 Kd3 Ke6 e4 f5 c4 a5 h4 g5 b4 a4 c5 g4 b6 d6 b5 a3 h6 f4 c6 f3 b7 f2 c7 g3 h7 a2 b6 g2 Kc4 d3 Bh6 d2 Nf3 g1N Ne1 Bd7 c8B Ra7 Bd3 f1Q Qb3 Qe7 Rh3 Qg7 Nc3 Ra3 Rb1 Qf2 Bc2 a1N Nd3 Nf6 Qb5 Rg8 h8B Nb3 Qa6 Nf3 Qa7 Nc6 b8N Nb4 b7 Nbd4 Nc6 Nb5 b8N Ra1 Qb7 Be7 Rg3 Nbd5 Rh3 Kf7 e6+ Kg6 e5 Kh5 Ne4 Nh2 Rf3 Bd8 e7 Kg4 e8B Qb6 e6 Nh7 e7 Qb2 Bc3 Ndf6 Rh3 Bf5 Bed7 Rg7 e8Q Rg8 Ng3 Kf3 Ne4+ Rg3 Nce5+ Ke2 Qe6 Bg4 Bc6 Bf3 Nbd7 Bg2 Nf8 Bf1 Bg5 Nh5 Bh6 Bg5 Be8 N5f6 Bed7 Rg4 Ne1 Nf3 Be8 Nfd4 Bh5 Nc7 Rd1 Nf3 Ba5 Nh2 Bd7 Rc1 Rb3 Ra1 Bc3 Ke3+ N1d3 Rg3 Bg4 Qa7 Kb4 Qb6+ Bb5 Be2 Nf4 Bc4 Nfd3 Rb1 Ka4 Rc1 Bc6 Ba6 Bd7 Nb5 Kb4 Ra1 Kc4 Rb1 Bf5 Ke2 Rh1 Rf1 Bh3 Rf2 Rb1 Rf1 Bg4+
1b2Bb2/8/1NpN3B/2k1qPBN/1Q2qRr1/N3rB2/3nRp2/bnNK1bQ1 b - - 0 1 illegal: No proof kernel
bnr3N1/6Q1/pNQ2RQb/2PN2rR/1Bk1K1n1/r1qrQ3/2pQ2Bq/N7 b - - 0 1 illegal: No proof kernel
K3Nnb1/3Bb1QP/1r1q1Nr1/1Q5R/1B1rR3/Qp3Q2/1qp3BB/kr3nB1 b - - 0 1 illegal: No possible last move, all moves rejected
1BqQ2K1/3nr1BP/R2b4/1p2nNrN/nq2R1N1/kBB1p3/2b1nB2/4NQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 g5 d4+ Kb6 f4 Ka5 h4 c5 a4 b5 d6 g4 h6 g3 h7 e6 h5 b3 f6 Kb4 a5 b2 a6 g2 d7 c4 h6 c3 f5 c2 d5 Bb7 f7 Qh4 d8B Qe7 a7 Bc8 d6 Bb7 f6 Ba6 d7 Qe8 Nf3 g1Q Nbd2 b1N Nc4 Na3 Ne3 Qg4 Nf5 Qh3 Bc4 Qh5 Bb6 Bg7 d8N Ne7 f8B Nb1 Bf4 c1N Nc6+ Kc3 Ne1 Kb2 Bf2 Rg8 h8B Qh4 h7 Bb7 Ra6 Nc3 Bb3 Na4 Qd3 Qd7 Qf1 Ne2 Rh3 Qd8 Re3 Ka3 Re4 Qc8 Kd6 e5 f7 Nd7 Ke6 Bf6 Bfg7 Ng6 f8N Be7 Kf7 Bd6 Ne6 Rb8 a8Q Qg4 Re3 e4 Ne5 Bd5 Bh2 Rb7 Bf4 Qh4 Ng4 Bc4 B4g3 Bd3 Nf4 Bc2 Nh5 Rc7 Bc3 Ra7 Bhg7 Rc7 Rf3 e3 Rf4 Ra7 Re4 Nge5+ Ke6 Qc7 Qd8 Qc8 Bf8 Rg5 Bg7 Ng6 Kf7 Rb7 Re6 Nge5+ Kg8 Rc7 Ngf6 Qb4 Ng4 Nb6 Bh2 Re7 Bf4 Nbd7 Bh2 Nf7 Re4 Nfe5 Ra7 Bb8 Kh8 Nf3 Kg8 Bc7 Bd6 Nfe5 Ra6 Bb8 Bc5 Bc7 Ba7 Bd6 Bb8
4N1Nq/4R2P/bK1np2N/r1rQ4/p3BQ2/1R1B3B/B2b2Nk/b1b1Bq1n b - - 0 1 illegal: No proof kernel
Q5Q1/1bnk1Q1p/2n4Q/1qb2bP1/2R4B/N1r3qb/p1BKNrBR/3B1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 c4 a5 b4 f5 e4 d5 g4 d3 e6 d4 g6 a4 b6 a3 e7 a2 e5 f4 b7 f3 c5 f2+ Kd2 Ra5 b5 Bg7 c6 Ra4 b6 Nh6 c7 Bf6 g7 Ra6 g8Q+ Kd7 Qf7 Qf8 Na3 Ng8 Ne2 Qe8 Rh2 Nc6 b8Q Bb7 Qa8 Bh4 Bg2 Nf6 Qh1 f1B g5 Rf8 e6+ Kd6 c8B Bf2 Rb1 Nd5 Rb4 Nc7 Rc4 Ra5 Bb2 Rc5 Bc3 Qd7 e8B Be3+ Kd1 d2 e7 Qg4 Bf5 Qg3 Kc2 d1B+ Kd3 Bf2+ Kd2 d3 Bd4 Bg1 Bf2 Bc2 Bed7 Bb1 e8B Bc2 Bfe4 Bb1 Bg4 Bc2 Ra4 Rc3 Rc4 Bb1 Be1 Bd4 Bed7 Bc5 B4h3 Bc2 Bdg4 Bb1 Kd1 d2 Bc2 Qf3 Bh4 Qg3 Qg7 Rf2 Qf7 Bc8 b7 Bf5 Ba4 Bbe4 b8Q Bf3 Bc2 B3e4 Qh5 Kd7 Qg8 Bd5 Bge4 Bg2 Qf1 Bde6 Qh6 Bh1 Bh5 Bf3 Bg2 Bh3 Bg4 Bf5 Bed3 Na5 Bb1 Bb7 Nd4 Rf3 Qh8 Nc6 Qhg8 Be6 Qf2 Rf7 Bdf1 Rff3 Bbd3 Rf7 B4f3 Beg4 Ke2 d1Q+ Ke3 Qb3 Kd2 Rf4 Bc2 Qb5 Bfd1 Rf6 Qf3 Be6 Qfh5 Rf2+ Ne2 Bef5 Qhf7+
1r1q1rRQ/3P2Nb/N2pN1QK/2n1QRB1/N5Bb/5b1k/QN1b1qpn/8 b - - 0 1 illegal: No proof kernel
1b2R3/1np1Bk2/r1q2rbK/N1QRpQ1R/qnR3rR/3B4/4N1P1/1rQQ4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Kf3 h5 b4 a5 d4 a4 b6 h3 b7 a3 f6 h2 f7+ Ke7 d6+ Kf6 b5 a2 b6 h4 d5 h3 d7 Nc6 Kg4 Na7 b8R Ba3 f8Q+ Kg6 f4 Nb5 d6 Bc5 f5+ Kh7 Kh5 Ba6 b7 Na7 f6 Nb5 f7 Qf6 d8Q Ba7 d7 Nd6 Bg5 Ne7 Ne2 Rg8 Na3 Bd3 Qc1 Nc6 Nc4 Nb4 Na5 Qe6 Be7 Rg4 Rb1 a1Q Rb3 Be4 Rc3 Qa4 Rc4 Qd5 Rc8 Qdc6 b8R Bc2 Rb5 Bb8 Rd5 Ra6 Rdd4 Nb7 Rf4 Rg8 Rfe4 Kh8 Rh4 Bg6+ Kh6 Bf5+ Bd6 Bg6 Qfe7 Rf8 Qe6 Rg8 Qf5 Rf8 Be7 Rg8 Rg1 h1R f8Q h2 Nd4 Qf6 Bd3 Qfc6 Rd1 Rf1 Ne2 h1R Rh5 Rf4 Rf1 Rd4 Rf4 Rd6 Rfh4 Rg1 Bg5 Re6 Qc5 Rf1 Be7 Rf6 Qe8 Rd1 d8R Re1 Rd5 Rh1 Kg5+ Kg7 Qed7 Kf7 Re8 Re1 Kh6 Rg7 Qb2 Rb1 Qc1 Nd8 Be4 Nb7 Rd1 Rg8 Qdd2 Rg7 Qe1 Rg8 Rd3 Rg7 Qed1 Rg8 Rc8 Rd8 Rdd4 Rd6 Re8 Rd7 Rd2 Rd4 Bc2 Re4 Rd5 Rg4 Bd3
5NK1/1pbrB2B/1QQ1Qp2/q3k1B1/nq2bR2/q2QPn2/Q4rNR/1B4q1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 Kg4 c5 Kf5 g4 a4 g3 h4 b3 d4 g2 h6 c4 e6+ Kd6 a5 c3 a6 b2 h5 c2 a7 f6 Kg6 Ne7+ Kf7 Bd7 h7 Na6 h6 Rc8 a8Q Rg8 h8Q Rg3 h7 Qc7 Na3 b1Q Qd3 Qc3 Nc4+ Kc7 d6+ Kc6 d5+ Kc5 Ne5 Bh6 Bg5 c1Q e3 Rf3 Ne2 g1Q Ng6 Qbb2 Rh2 Nb4 Qa2 Qbb3 Nf8 Qbc4 Qg8 Nbc6 h8Q Qb5 Nf4 Qca5 Ng2 Nf5 e7 Ra8 e8B Ng3 Qhg7 Bc8 d7 Kd6 d8Q+ Ke5 d6 Bf5 d7 Nd4 Qb6 Be4 d8B Nge2 Be7 Nc3 Be2 Qca3 Rf1 Rf5 Rf4 Qbb4 Bh5 Rd8 Bg6 Rd6 Bh7 Nf3 Ba4 Rd8 Bc2 Na4 Bb1 Rd7 Qg6 Rc7 Qdc4 Rd7 Qcc6 Ne1 Rg4 Rf2 Rf4 Nf3 Ne6 Bd5 Qd3 Be4 Qe8 Bf8 Kg8 Bh6 Qf7 Bf8 Bc5 Bd6 Nf8 Bb8 Be7 Bc7 Qfe6#
5r1R/1pBNKQ1P/3n4/N1pqBNBr/3bk2Q/1NRbn2B/r1q3r1/4B3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 g5 f4+ Ke4 h4 e5+ d6 b3 d4 b2 a4 c6 f6 g4 h6 g3 f5 g2 a5 Ra6 h5 Qc7 d5 Be7 h7 Qd7 f7 Ra8 f8B Nh6 a6 Ng8 h6 Qe8 f6 Qd7 f7 Bg5 a7 Be7 Qa4+ Kf5 Ra3 e4 Rc3 e3 Qh4 e2 Bg5 e1R Nd2 b1Q Nb3 Re2 Nf3 g1R Nfd4+ Ke5 Bh3 Qb2 Nf5 Rd2 Bg7+ Bf6 f8Q Rgg2 Qf7 Qc7 d7 Ne7 d8B Qc2 d6 Nd5 d7 Ne3 Rh2 Rf8 h8B Rd4 Rh1 Rdg4 Rh2 Ke4 Rh1 Qa5+ Kd6 c5 Bc7 Na6 d8N Qaa2 Nc6 Bd4 Be5 Be6 Nca5 Bc4 Ke7 Bd3 Bg3 Rh2 Be1 Rg2 Na1 Qd5 N1b3 Rf4 Bhe5 Rh8 Bcd6 Nc7 Rh2 Ne8 Bc7 Nd6 Rh1 Rag8 a8N Rf8 Nb6 Ra8 Nd7 Rhf8 h7 Ra6 Rg1 Rfg4 Bgf4 Rg5 Rf1 Rh5 Rg1 Rf2 Rg8 Rg2 Rh8 Ra7 Nc6 Ra1 Nca5 Ra2 Bg5+
Q7/2Q5/pr1r1B2/kNB1N2Q/bq3R1p/qR1B3n/P1r1B2b/KbBQq3 b - - 0 1 legal: proof: h4 e5 b4 g5 hxg5 f5 e3 f4 b5 Nc6 exf4 e4 d4 Ne5 b6 cxb6 dxe5 b5 Bc4 b4 Bb5 Qf6 Bf1 Qd8 Kd2 b5 g4 d5 c4 Kd7 Kc2 Kc6 Kb2 Kb6 g6 h5 c5+ Ka6 e6 b3 e7 h4 e8Q d4 g5 e3 c6 d3 c7 b4 f5 e2 f4 e1Q g7 Qee7 f6 Qed6 g6 Ne7 g8B Qe6 f7 Rb8 g7 Rh6 f5 Ng6 f6 Nf4 Nc3 Qdd6 Nf3 Rb6 Rh3 Ka5 Be2 a6 Ne5 d2 Nb5 Bd7 c8Q Bc6 Kb1 b2 Rb3 Nh3 Qc7 Rg6 Bh7 Rg2 g8Q Qc5 Qg4 Bd6 f8B Qec4 Nd7 Bh2 f7 Qe3 Ne5 Qce4+ Qc2 d1R Be7 Rd6 f8B Rf2 Qa8 Qc4 Nc3 Ba4 Nb5 Qcc3 Bf5 Qe1 Bf6 Rg2 Qd1 Qf3 Kc2 b1B+ Kb2 Qe3 Qh5 Rf2 Rc3 b3 Bd3 Qf3 Ka3 b2 Rb3 Bc2 B8e7 b1Q Bf8 Rd7 Bc5 Rd6 Bg6 Bf5 Bh7 Qbe4 Kb2 Q4b4 Rb1 Be4 Ka1 Qfc3+ R1b2 Bb1 Bhd3 Qa3 Rb4 Qd4 Rb3 Qdb4 Rc2 Rg2 Rc4 Rf2 Rf4 Rg2 Bf3 Rc2 Bfe2
1Q1k2n1/6p1/NrB4R/3q1q1p/3Q1RPN/nnN2NQ1/1bnQ1r1n/1Q2B2K b - - 0 1 illegal: No proof kernel
R1BBrQ1B/5pK1/p2n2b1/1Q1n2B1/6n1/Q3qPrq/1NNQB1n1/n3R2k b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 Kd2 Kd7 Ke3 c5 Ke4 h5 Kf5 e5 b4 c4 g4 e4 b6 e3 g5 h3 f3 h2 g6 h4 g7 h3 b5 e2 b7 e1N b6 c3 Bb2 c2 Nc3 c1N Qa4+ Nc6 b8Q Ncd3 b7 Qc7 Qa3 Nc1 Na4 Nf6 g8B Nb3 Ne2 Nca5 Bh7 Ng2 Bc3 Rf8 Nb2 Nc4 Kg5 Rd8 Kh6 Re8 Kg7 Qb6 Rg1 h1Q Bf5+ Re6 Re1 h2 Bh3 a6 Bg4 Kd8 d7 Re8 Qf4 Rb8 Qd2 Kc7 d6+ Kc6 d8B Kd5 d7 Nd6 Be7 Na1 d8Q Bf5 Qd7 Rbd8 b8Q Bg6 Bh3 Rc8 Qb5+ Rc5 Bd8 Qa7 Bc8 Qe7 Qd7 Qe3 Qe7 Rc6 Qf8 Rc4 Qb5+ Rc5 Bb7+ Ke6 d5+ Kf5 Nd4+ Kf4 Bc8 Kg3 Be7 Rc4 Nc2 Rg4 Qc1 Kf2 Bd4 Rg3 Bc3 Nc4 d6 Nd5 d7 Nd6 d8B Nh4 Bd7 Qg2 Bh3 h1N Bc8 Qh3 Bg5 Ng2 Qd1 Rg4 Qde2+ Kg3 Qd2 Kh2 Kg8 Nf2 Bh8 Rg3 Kg7 Qb6 Re7 Ng4 Ra7 Qe3 Ra8 Re5 Be2 Re4 Re1 Re8 Bf1 Kh1 Be2+
Qn1r3R/3k1R2/b1b2Q2/1q1q2Q1/Brq1N2p/Q3b1bP/1p2R1R1/RK2BN2 b - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Na6 g4 Rb8 f4 Nh6 b4 axb4 g5 Nc5 f6 Kd7 f5 Ne4 f7 Nf6 gxf6 Ng8 Qf3 Ra8 Qe2 Ra7 Qd1 Ra8 a4 b5 d4 h5 Kd2 c5 Kc2 e5 d6 g5 d5 c4 a5 g4 a6 e4 a7 h4 h3 g3 Qf3 e3 Ne2 g2 Rg1 c3 Ng3 e2 Nd2 e1B Nge4 b3+ Kb1 Be7 f8R b2 f7 b4 f6 Rb8 a8Q Bg3 Re8 Ba6 f8Q Rb7 f7 Bg5 Qh5 Be3 Qg5 Ne7 Bb5+ Nc6 Nf1 Qa5 Ba4 Qb5 Re6 Nb8 Bd2 Rg8 Be1 c2+ Ka2 c1Q Qfe7+ Kc8 d7+ Kc7 f8R Qcc4+ Kb1 Rb6 Rf3 Rd8 Rf8 Rb7 d6+ Kc6 Rh1 g1Q Rh2 Qg2 Rh8 Qd2 Rg2 Qdd5 Qgf6 Rf8 d8Q Rg8 Qa5 Rd8 Qef8 Kd7 Qg5 Qe2 Qff6 Qg4 Kc2 b1B+ Kb2 b3 Qb4 Qgd1 Qa3 Qg4 Re5 Bc2 Rf8 Bd1 Kb1 b2 Ree8 Qe2 Re6 Qec4 Rh8 Kc8 d7+ Kc7 Re7 Bf3 Re5 Qbc5 Re7 Rb4 Ree8 Q5b5 Re6 Re8 d8R Rf8 Rde8 Kd7 Rc8 Rd8 Ree8 Qcd4 Rcc2 Q4c5 Rce2 Qcc4 Ref8 Qg8 Nc3 Bc6 Ne4 Qgd5 Rf7+
nn1n3b/1rNp3R/1r1PBR2/q2NBp2/qQ3K2/2Q3Nq/7B/qNN2k1B b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 gxh5 Ke7 b4 Ba6 c4 Qc8 b6 Kd8 c5 Be7 b5 Ke8 c6 Bb7 cxb7 Qd8 Ra5 Bb4 Ra1 Bf8 Kf2 Ke7 Kf3 Kf6 h4 Ke5 e4 Kd4 e5 f5 h6 g5 h7 a5 h5 c5 e6 c4 h6 c3 e7 c2 e8B a4 Bb2+ Kd5 d4 c1Q Qd2 a3 Qc3 a2 Bg2 Ba3 Ne2 Ne7 Ng3 Rf8 h8N Ra7 h7 Rf6 Nf7 Nec6 h8N Qc2 Ng6 Qa4 Nfe5 Bb4 Rh7 g4+ Kf2+ f3 Ke3 Bf8 Nd3 Bg7 Bh1 Bh8 Kf4 Re6 Nc1 Rd6 Qd2 Kc4 d5 f2 Be5 f1N Bf7 Ne3 Ne7 Qc7 Be6 Nd8 Rh6 Qc5 Rf6 Qcb4 Qb2 Qba5 Qa3 Na6 b8B Rb7 Bc7 Nb8 Qb2 Ra7 b7 Rb6 Nb3 Kd3+ Qd4+ Kc2 Nc1 Nc4 Qc3+ Kd1 Bcd6 Nbc6 b8N Rab7 Na6 Nb8 Nf1 g3 Nc7 g2 Ng3 Rc6 b6 g1Q Bd4 Qg2 B4e5 Ra7 b7 Rb6 Ng8 Qh3 Ne7 Na6 b8Q Rab7 Qa7 Nb8 Qa8 Q5b5 Qaa5 Qa6 Qab4 Q6a5 Nd2 Ke1 Rb1 a1Q Rb3 Ra6 Nb1+ Kf2 Rb2+ Kg1 Re2 Nb6 Rh2 Qg2 Rh5 Na8 Rh7 Qh3 Bc5+ Kh2 d6 Rc6 Bf2 Rcb6 Be1 Kg1 Ned5 Rc6 Nh5 Kf1 Bg3 Ra6 Bh2 Rab6 Ng3+
NQK3b1/2Q2q1b/4r1Qk/1N3Bq1/2p3Bn/b1P2r2/r1B1b1pQ/2BQ1RR1 b - - 0 1 illegal: No possible last move, all moves rejected
K4k2/1R1b2Np/1q2R1B1/4qNnP/1q2qQrN/3r2N1/3pnB2/2RnQ1RN b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 e6 g4 Na6 f4 Be7 g5 Bf6 gxf6 Nb8 Kf2 d5 Kf3 g5 h4 a5 b4 e5 c4 d3 c5 a4 h5 d2 c6 a3 c7 d4 Ke4 g4 f7+ Kf8 b6 d3 b5 a2 b7 g3 b6 g2 Ne2 g1Q Nbc3 Qd6 Ng3 Qa3 Kd5 Ke7 Nce4 Ra6 Nf2 e4 f8R e3 f6+ Kd7 f5 e2 f7 Ke7 f6+ Kd7 Re8 Nc6 b8R e1Q b7 Rb6 Re6 Qe7 f8N+ Ke8 Ng6 Nh6 Nh4 Nd4 Bb2 Nb5 Bd4 Nf7 Rc1 Qe2 Qe1 d1N Be3 Ng5 f7+ Kf8 Bg2 a1Q Be4 Kg7 Bf5 Bd7 c8N d2 Nd6 Rf8 Bg6 Qh2 Rg1 Nd4 Nfh1 Rb3 Kc5 Ra3 Kb6 Rd3 Kc7 Qhg2 Bf2 Qe3 Kb6 Qb1+ Ka7 Qe5 Ka8 Rc8 f8N Rc6 Rf6 Qb6 Ndf5+ Kg8 Rd6 Rc4 Ne6+ Qf8 Neg7 Ne2 Re6 Rg4 Be8 Qfb4 Bg6+ Be8 Rd8 Qgc6 Rd7 Kf8 Rde7 Qcc4 Rd7 Qec5 b8Q Qe4+ Rb7 Qcc3 Qf4 Bd7 Rb1 Qce5 Rc1
k5Rb/nRQ2K2/ppbN2r1/2rR1B2/1P1B2q1/1b2NB1B/R1b4q/R3q2Q b - - 0 1 legal: proof: f4 d5 h4 e5 a4 exf4 c4 g5 cxd5 b6 hxg5 Nd7 a5 Nc5 a6 Nb7 axb7 Qe7 Rh5 Qd6 Rh1 Qd8 Kf2 Kd7 Kf3 h5 Ke4 c5 Ke5 Kc7 b8R f5 b4 h4 e4 c4 g4 a6 d4 f3 g6 f4 g5 c3 d6+ Kc6 d5+ Kd7 g7 c2 g6 f2 Rh2 f3 Ne2 h3 Nec3 Bb7 Nb5 Ra7 Nd2 Bc8 Nc4 Qc7 Ne3 Rh6 Rb7 Ne7 Kf6 Nc6 g8B Bg7+ Kf7 Bh8 g7 Rg6 Bb2 c1Q e5 Qc4 Bh7 Qg4 g8R Ra8 Rg2 h2 Bd4 h1B Rh2 Ra7 Bh3 f1B Rha2 f2 Qb1 Bd3 Qf1 Re6 Bf5 Bc2 Qe1 Bf3 Qh1 f1Q Kf8 Kd8 d7 Qc1 Nd6 Rg6 e6 Qe1 Rb8 Qb7 e7+ Kc7 d8R Be6 e8B Ra8 Bd7 Na7 Bb5 Qc6 Be2 Qcc3 Ke7 Qcd2 Bd1 Bfe4 Bf3 Qh2 Kf8 Bb3 Ke7 Bd7 Kf7 Bda4 Ndc4 Bd7 d6+ Kc6 Rb7 Rc8 Rde8 Rc7 Re5 Rc8 Rd5 Bec2 Ke7 Be8 d7 Rc7 Rb8 Rc8 d8Q Bd7 Kf7 Rc7 Ra8 Kb7 Qe7 Rc5 Nd6+ Kc7 Qe5 Bc6 Rg7 Qg5 Rag8 Qg4 Kf8+ Kb8 Rb7+ Ka8 Qg7 Rg5 Qc7 Rg6 Kf7+
5n2/N2p2K1/5NB1/bRqnBpQB/2NP2bq/5BR1/nQ1B2bk/3N2br b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 h4 g5 hxg5 Ke7 a4 Ke8 b6 Ke7 b5 Ra6 b7 Rf6 b6 Ke8 Nh3 Rf5 Ng1 Rb5 axb5 a4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 g4 h5 d4 a3 g6 f3 g5 h4 g7 f6 g6 a2 Na3 h3 Bg2 h2 Qd2 c4 Nh3 c3 Rb1 a1Q Nf2 c2 Nd1 f2 Rg1 Ne7 g8B+ Kd6 g7 h1B Bh7 f1N g8N Nbc6 b8N Qb2 b7 Nb4 b6 Ng6 Kf5 Qc3 e4 Na2 Nc6 Bh6 Rb3 Be3 Na7 Nf8 b8B+ Qcc7 Rb1 Ba6 b7 Be2 Bg6 Bf3 e5+ Kd5 e6 Qc5 e7 Bf2 Nc4 Ne3+ Kf4 f5 Kg5 Ke4 Kf6 Nd5+ Kg7 Be1 Qh6 Ba5 Be3 c1B Be5 Bcd2 b8Q Bc1 B3f4 Be3 Qb3 Bf2 Bd2 Be3 Qc3 Bf2 Rb5 Be3 Bf1 Bg4 Rg3 Bg1 Qb2 Bhf3 Be2 Bh1 Rd3 Bg2 Qh4 Rh6 Qf6 Rh4 Bh5 Rh1 e8B Qde7+ Bef7 Qd8 Qh6 Qg5+ Bfg6 Qh4 Rdb3 Qc8 Qg5 Qc5 Bd3+ Kf3 Nf6 Bh3 Bb1+ Kg2 Rg3+ Kh2 Be4 Bg2 Bf3
Q4RB1/1n4np/2rBk3/r1Q2RbQ/R5n1/R3qRpP/NK2Qr2/N1r4q b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 exf4 cxd5 f3 Na3 f4 Nb1 Bf5 gxf5 Qd6 Ra3 Qe7 Ra1 Qd8 d4 Kd7 Kd2 a5 Kc2 g5 e4 c5 b4 g4 d6 a4 d5 f2 h3 a3 b6 c4 b7 g3 e5 f3 f6 c3 b5 a2 f7 Qg5 b6 Ra6 e6+ Kd8 d7 Ke7 d8R Qe3 d6+ Kf6 e7 Qd4 e8Q Be7 f8Q+ Ke5 d7 Qc5 Qh5+ Ke6 Bf4 Nh6 Na3 Nf7 Bd6 Qb5 Ne2 Ng5 Nc1 Qc5 Qe2+ Qe3 Rc8 Bd8 Rc5 Ra5 Rf5 Na6 b8Q Nc5 Qa8 Nb7 Bg2 Be7 d8R f1N Re8 Nh2 Rf1 f2 Bd5+ Kd7 Bc4 Ng4 Bg8 Ne6 Kb3 c2+ Kb2 Ng7 Rb8 Nd8 b7 Bh4 Rc8 Bg5 b8R Nb7 Rcc5 Qd2 Rf3 Qe3 Re1 f1R Rcf5 Rf2 Rf1 Nd8 Rb4 Nb7 Rbf4 Nd8 Ra4 Nb7 Nd3 c1R Nb4 Rc6 Nac2 Rh2 Rad1 Rf2 Na1 Rc1 Rd3 Rc6 Qf6 Rc1 Qe5 Rc6 Bc4 Rhc8 Bg8 Rc1 Qc5 Rc6 Rf7+ Ke6 Rda3 Rc4 R3f5 Rc1 Rf8+ Kd7 Qc3 Rh2 Be7 Re1 R1f3 Rf2 Nb3 Ref1 Qc5 a1Q+ Kc2 Rg1 Na2 Qf1 Bd6 Qg2 Nbc1 Qh1 Kb2 Re1 Nb3 Rc1 R8f7+ Ke6 Na1 Qd1 Rb3 Qe1 Rba3 Qh1 Rf8+
1qn2b1K/1q2pB2/2QNQ1R1/3Q1n2/1q1k1B2/Np2q2N/N3P1nr/Nb4RQ b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 g5 h4 a6 hxg5 Nh6 f4 Ng8 f5 Be6 g6 Ra7 g5 Bc8 b4 a5 g7 axb4 Rh5 Ra6 Rh1 Rg6 fxg6 Bd7 Qa4 Bg4 Qd1 Bc8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kc4 a4 h5 a5 c5 a6 f6 d6 h4 a7 b3 a8Q h3 d5 b4 d7 h2 Kf5 b2 d6 b3 Qc6 Rh6 Ra6 Qe8 Bg2 Qf7 Bd5+ Kb4 Nh3 c4 Bf4 c3 Na3 c2 Rg1 Bb7 d8N c1Q d7 h1Q Ne6 Qe8 d8N Qe3 Nf7 Nd7 Nd4 Nb6 Nd6 Qb8 Bf7 Nc8 Qb1 Qg2 Qbe4 b1Q Rb6+ Ka5 Ndc2 Qe1 Na1 Qb4 Ke6 Ba8 Kf5 Rh8 Ke6 Nh6 g8Q f5 g7 Bb7 g6 Ba6 Qh7 Bd3 g8N Bb1 g7 Qh1 Nf6 Qhf3 Bh2 f4 g8Q Nf5 Nd5 Qh1 Qe5 f3 Bf4 f2 Qg4 f1N Nc3+ Qec5 Qgg8 N1e3 Qed5 Ng2 Qh5 Rh7 Na2 Rh6+ Bg6 Rh8 Kf7 Rh6 Qe6 Qe3 Qhf3 Rh4 Qh7 Rh6 Kg8 Rh4 Bf7 Rh6 Nf2 Rh5 Kh8 Rh2 Nab5 Ka4 Nh3 Ka5 Qfd5 Ka4 Nc7+ Ka3 Ra6+ Kb2 Ncb5 Qc1 Qa8 Na7 Nc8 Qe5+ Qf6 Ne1 Qg2 Qe3 Qhg6 Qc1 Qgb7 Qe3 Na3 Qd5 Qg2 Qdb5 Qh1 Ng2 Qb6 Qd7 Qd5 Qb7 Nc3 Qeb8 Na2+ Nd4 Qg6 Nf5 Qbc5 Qbd4+ Rf6 Qdb4 Nd6 Nc8 Qcc6 Qc4 Nb4 Kc3 Re6 Nfh4 Qge4 Nf5 Rg6 Qcc5 Qde6 Qc4 Qf3 Kd4 Na2 Qcb4 Qfd5#
k2Bn2r/2rrp2R/1KRp2B1/R5qq/1BR1nBq1/1QB1N1N1/4P3/Qqb5 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 c5 axb5 cxd4 h3 f5 Na3 Bb7 Nb1 Bf3 gxf5 g4 Nc3 g3 Nb1 Bg4 hxg4 Bg7 Rh5 Bh6 Rh1 Bf8 Kd2 a5 Kd3 h5 Kc4 a4 b4 a3 f4 d3 f6 h4 f5 h3 g5 d2 g6 a2 b6 g2 Kb5 h2 c4 Rh6 g7 Nc6 c5 Na7+ Ka6 Rh5 b7 Rh4 b8B Nh6 g8Q Rg4 b5 Nf7 c6 Re4 c7 Re5 c8R Nh6 b6 Re4 b7 Rf4 Rc6 Rh4 Nf3 g1R Bc7 Rc8 b8B Rd4 Bh3 Ng4 Ne5 Nf2 Nc3 Ne4 Ba3 Nb5 Nc4 Nbd6 Ne3 Rf1 Qe1 d1Q Qb3 Qc1 Bb4 Bh6 Bca5 Qc7 f7+ Kd8 f8R+ Ne8 f6 Rg1 f7 Rg8 Bg4 Rh8 Bf5 Qd2 Rc1 a1Q Bg6 Qb1 Rg8 Rd6 f8B Qd5 Bg7 Qg5 Bf6 Qg4 Rg7 Rd4 Rf1 h1Q Rh7 Qhh5 Rf5 Bf4 Bb6 Qhg5 Ra5 Rd5 Bbd4 Qce5 Bb6+ Rc7 Qed1 Kc8 Qh1 N4d6 Ne4 Rd2 Ng3 Ne4 Qhd1 Q5h5 R1c4 Qeg5 Bfc3 Rd3 Nef1 Bc1 Ne3 Rd6 B6c5 Rd2 Bd6 Rd4 Bf4 Rd2 Ba7 Rd5 Bb6 Kb8 Qd4 Ka8 Qf6 d6 Qg7 Rd7 Bd8 Rb5 Qd4 Rbb7 Qdd1 Bd2 Qc1 Rbc7 Qca3 Bc1 Qab2 Kb8 Qa1 Ka8 Kb6+
3rRbnQ/4QQpK/1Q3br1/6p1/b5P1/3Rb1k1/BNNq2Bb/2bQBB2 b - - 0 1 illegal: No possible last move
BBb3rn/1RbnN3/Q2N2Q1/R3Q3/1rqBpP2/3p1Q2/kn1p3B/r1Q4K b - - 0 1 illegal: No possible last move, all moves rejected
1K1kNQ2/1B4qr/Q4Rb1/nQ2QP2/1b2B1BN/p1nr4/1p1rp2B/3b2RB b - - 0 1 illegal: No proof kernel
2Nb4/1nrr3Q/R7/kN1pR1q1/BbB3pR/1bpRPn2/1B3K1R/B1r1Q3 b - - 0 1 illegal: No proof kernel
r1B4Q/bB1R2R1/2Bpn1rN/1R1r4/pnb2kR1/5N2/Qp2BP1K/qb4B1 b - - 0 1 illegal: No proof kernel
n2k1B2/2b1r1rp/1Qr5/1R1Q3b/Kn1RNB2/BpB2BQ1/N1p2bP1/Qq6 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 b5 d4 e5 Kd2 c5 Kc2 c4 f4 e4 f6 c3 Kb3 c2 f5 e3 f7+ Kd7 d6 e2 f6 e1B g6 Ra7 g7 Ne7 g8Q Nbc6 a5 Ra6 d5 Bg7 f8B Ng6 f7 Bg3 Be2 Bf2 Ra4 Qe8 Nh3 Rb6 a6 Nh4 a7 Nf5 a8Q Qd8 Nc3 Ne3 Bf3 Nc4 Ng5 Be5 Nge4 Bb7 Be3 Qb8 Bf4 Kd8 d7 Bc7 Qg3 Rg8 Rh5 Rg7 Qa1 Ra6 Qa7 Nb6 Na2 Na8 Qb6 Bc8 B8d6 Bb7 f8B Re7 Kb2 b3 Ka3 b2 Kb3 Bc8 Rd4 b4 Bde5 Ra7 Rf5 Ba6 Ka4 b1R Bd6 Rh1 Bc5 Rh6 Rh5 b3 Bb4 Rb7 Bc3 Qa7 Re5 Rg7 Ba3 Nb4 Rg5 Ke7 d8B+ Kd7 d6 Be2+ Ra5 Rhg6 Bf6 Re7 B6e5 Kd8 d7 Rc6 Bg7 Qa6 Bgh6 Qd3 Rb5 Qd1 Bf8 Qb1 Rd2 Bc4 Rd6 Bf7 Rd4 Bh5 Rd2 Rg7 Qd4 Be5 Qe3 Kc7 Rd1 Rb8 Qc5 Re8 Rd4 Bd6 Ra5 Ree7 d8Q+ Kb7 Qd7+ Bc7 Qdd5 Kb8 Qb6+ Kc8 Bd6 Kd7 Rb5 Kd8 Bf4+
N3kB2/2rBpprB/b4PB1/4r1R1/nNQ2qnp/1RB3n1/6K1/1RR1b2Q b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 Ba6 hxg5 Bc8 f4 a5 Kf2 h5 d4 a4 g4 e3+ Kg2 e2 c4 e1R c6 h4 f5 a3 c5 a2 d5 Ra4 g6 Re6 g7 Rhh6 f6 Bd7 g5 Qb6 g6 Rh8 d6 Qc7 b6 Rf4 b7 Rfe4 Na3 Nh6 g8B Qd8 c7 Bc6 c8Q Bd7 g7 Rb4 c6 Re1 c7 Bc6+ Nf3 Re6 Nb5 Rb3 Bh7 Ree3 g8R Rb1 Bfd3 Nd7 b8R Nb6 Qa6 Na4 c8B Rb4 Rb1 Rc4 Rg6 Bd7 Ne5 a1N Nc6 Nf5 Rg4 Re6 Bh6 Ng3 Bdg6 Re5 Rb6 Bg7 Qf1 Rg8 Nc7+ Kf8 Qb5 Nc2 Na8 Ke8 Qc1 Rcc5 Qc4 Be6 R6b3 Ne3+ Kf3 Qa5 Rf1 Qd2 d7+ Kf8 d8B Ke8 Bb6 Bd7 Nb4 Bb5 Rh1 Rc7 Bd4 Ba6 Bc3 Bf8 Qd1 Qc1 Qdd5 Qd2 Rhc1 Bg7 Rg5 Ng4 Rh5 Qg5 Qd1 Bf8 Qh1 Qd2 Bf4 Bh6 Rf5 Qd4 Kg2 Bg5 Bfd2 Be3 Rh5 Bf2 Bh6 Be1 Bf8 Qf4 Rg5 Rg7 Bd7+
1b1B3k/1np3r1/5p1N/Q2N1N1Q/1Q2qPr1/nKbrRB2/Q1N1np2/2NR4 b - - 0 1 illegal: No proof kernel
1R1bKbB1/B2Q1QRr/k1N4B/2nq2N1/2bpR1BB/1P1n2q1/1p3p1R/3r4 b - - 0 1 illegal: No proof kernel
k2n2N1/5qQ1/2b1N3/n1B2p1r/4NB1p/2BBp1b1/1KN1Q1Pr/1B1RRbq1 b - - 0 1 illegal: No proof kernel
k3b1n1/BNBQ3q/3nN3/2p1QrN1/P2bqrp1/3BR2n/p6N/1N1K1RB1 b - - 0 1 illegal: No proof kernel
2r2R2/1Kb1N1r1/1Q2RNr1/1p1p2Qq/1n1Bq3/N2b1pn1/N4P2/N1B1BBk1 b - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 e5 dxe5 c6 b4 Nh6 a4 Qe7 axb5 Qd8 b6 Ng8 b5 cxb5 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 Kg4 h4 f5 c4 g5 b7 a5 e6 a4 e7 f4 e8Q f3 e4 a3 h6 d6 h5 a2 h7 Bf5 h6 Na6 Kc6 d5 b8N Ba3 c5 Qa5 e5 Qe1 e6 Qe5 e7 Qh2 Qg6 Nb4+ Kb7 Nc6 e8N Nf6 Nd7 Rg8 h8B Ra6 h7 Ra4 Qd2 Bb2 Na3 Nh5 Bc3 Ra6 h8B Nb4 c6 Ng3 c7 Bd3 c8N Qh5 Bhd4 Rf8 Qh6 Rg6 Nc5 Rfg8 Rb1 a1Q Nb3 Qa2 Na1 Qc4 Ne7 R8g7 Be5 Qe4 Ne2 Rc6 Bcd4 Rc8 Qb6 Rg6 Rg1 Kh4 Qe3 g4 Nf6 Rg7 Rg2 Kh3 Qg5 Bc3 Rg1+ Kh2 Rb2 Bd2 Nc3 Bf4 Na2 Rg6 Bd6 Be5 B6c5 Bc7 Re2 Rg7 Rg2+ Kh1 Rh2+ Kg1 Re1 Nf5 Rh4 g3 Rf4 g2 Bc3 Ng3 B5d4 Kh2 Re3 g1R Be1 Rg2 Rf5 Kg1 Re2 Qeg4 Ree5 Qe4 Re6 Qhh4 Ng4 Ne2 Qf4 Qh5 Rf8 Rg3 Nf6 R3g6 Qh4 Ng3 Qg5
5Q1B/q5qb/2b1B2p/4rRBp/nk3K1Q/3B2QR/rb2PBpN/N5nQ b - - 0 1 illegal: Other
4Rq1k/B2BQQ2/Bb3P1N/r1q5/bRRnp1n1/K4R1q/RpNB3p/1r6 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 Kg7 g4 c5 d4 b5 Kd2 h5 Kc2 e5 Kb2 h4 f6+ Kh7 a5 c4 g6+ Kh6 d6 h3 d7 h2 f7 Kg7 d5 e4 a6 b3 f5 b4 d6 Rh5 a7 Rh4 g5 Rh5 Nf3 Qf6+ Nd4 Nc6 d8B Qe5 d7 Qb5 Bd2 Nf6 Na3 Rb8 a8R Qb6 Nac2 Qc7 R8a4 Rh4 R1a2 Rf4 Qh5 Qe5 Bb6 Ng4 d8Q Qd6 Qe7 Bd7 Ba7 Ra8 Be2 Rf1 Rg1 Ra1 Rb1 Qg3 Bd3 Qh3 Be2 Nf6 Qf3 Ng4 Rc1 Kh8 g7+ Kh7 g8B+ Kh8 g6 Bh6 f8R Be3 Nb5 Bb6 Nd6 Nd4 Rf6 Rb8 Be6 Bb5 Rb1 Rb7 Bd7 c3+ Kc1 Bc6 Ba6 Rb8 Qf1 Bb5 Qc4 Ra8 Qcf7 b2+ Kd1 b3 Rc4 Ba4 g7+ Kh7 Re6 Rb8 f6 Ra8 Nf5 Rb8 Rc1 b1Q Rb4 Qb2 Rc6 Qa3 Rcc4 b2 Nh6 Rb1 Qfe6 Rf8 g8R+ Rf7 Re8 Rg7 Ng8 Kh8 Q7f7 Rg5 Qee7 Qh7 Nh6+ Qg8 Rc5 Qf8 Rf5 Rh5 Rf3 Ra5 Rb3 Qc5 Rb5 Qh5 Rb4 Qh3 Nf5 Bc6 Na3 Ne6 Kc2 Bb5 Kb3 c2 Nh6 Bc6 Nc4 Ba4+ Ka3 Nd4 Ne3 Qf1 Re1 c1Q Rd1 Qc8 Rc1 Qh3 Rcc4 Qc5 Nc2
1k3BR1/1rnRR2q/1p3N2/rq3RQp/4BQB1/np2Kbb1/3P3R/2B3rN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 g4 e5 a4 h5 f4 c5 a5 Kc7 f6 e4 a6 b3 f7 b6 d6+ Kc6 d7 Kc7 a7 c4 g6 e3 f5 c3 g7 c2 f6 Bb7 g5 Be4 g6 Bb7 Nc3 Qe7 d8R Qc5 Ne4 Nh6 g8Q Qa3 g7 Rh7 Rh2 Qa4 Bh3 Ng4 Qf1 Bd6 f8R Ne5 f7 Na6 Nf6 Nc4 Bg4 Qb5 Nh3 Bg3 Nf2 Bf3+ Kd3 e2 Nh1 Na3+ Ke3 Kb7 Rd7+ Nc7 Qf2 Qa5 Re8 Qb5 f8B e1R+ Qe2 Bg2 Ree7 Rg1 Qec4 Bf3 Qgd5+ Kc8 g8R Rf7 Qg5 Kb7 Bb2 c1Q Qcf4 Qc2 Rf1 Qh7 Bc1 Rd8 a8B+ Kb8 Rd3 Rd4 Be4 Ra4 Re6 Rd7 Re7 Ra5 Rd6 Ne6 Rff2 Rb7 Rdd7+ Nc7 Qd6 Bd1 Rf5 Bf3 Qdf4
1N1B1Q2/4q1qR/pBB4n/2N4p/2bQ1n2/bp1BPn1r/R1N1NK2/3kr1N1 b - - 0 1 illegal: No proof kernel
B1R1b2N/N3n3/pq3b2/1R3pR1/K1p1Q1N1/2R2Pn1/BN1r1r2/q1q1QR1k b - - 0 1 illegal: No possible last move
4Q3/3B2rp/n1q2N1K/1NPR4/1Rb4Q/2b1NQQ1/3pr1pQ/1kN1Bnbq b - - 0 1 illegal: No proof kernel
n1qB1bN1/1Q1N1pq1/3pp2N/1KNn1BBR/1B2PN1r/3n1r2/6bR/k3Q3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 c5 a4 Rh7 axb5 Rh8 d4 cxd4 Kd2 a5 Kd3 e6 Kc4 Ke7 h4 Kd6 e4 Ke5 b4 a4 g6 d3 h6 d2 h5 a3 h7 d6 h6 a2 g7 Nc6 b6 Rb8 b7 Qc7 b5 Qd7 b6 Qd8 Kb5 Kd4 c4 Qg5+ c5 Ne5 c6 Qg2 c7 Nd7 Ne2+ Kd3 Rh2 Qf2 Bh3 Qh4 Qe1 Kc2 Nbc3 d1N Bf5 Qg3 Na4 Qe5+ Nc5 Qd5 Bg5 Kb2 Nf4+ Nf2 Bd8 Ra8 b8Q Ra7 b7 Ne7 g8N Qd4 Rd1 Qe5 Rd5 a1Q Qa8 Ka2 b8N Ra3 Qb7 Nb6 Nbd7 Qec3 Ngf6 Qcc1 Qa6 Rg8 h8B Qcb1+ Nb3 Qc3 h7 Nc6 Bg4 Bg7 Rdh5 Ne7 Bf5 Qbc1 Ng4 Bf8 Bf6 Ned5 h8B Na8 Nh6 Rg4 Bg5 Rh4 Qb6 Q3b2 Bc3 Ba6+ Kc6 Bf1 c8N Bg2 Kb5 Qba1 Bd2 Qg7 Ne7 Qc8 Nbc5 Rf3 Qb7 Nd3 Bb4 Kb2 Neg8 Ka2 Qg3 Ka1 Qe1+
2B2kB1/BQ2p3/2NRR2q/1K1b3b/1n2nQp1/p3P1rq/1q1RBRr1/2NR4 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 c5 gxf5 cxd4 h4 g4 Ra6 Bh6 Ra1 Bg5 hxg5 Qc7 Nh3 Qb6 Ng1 Qd8 Kd2 a5 Kd3 d5 b4 h5 f4 h4 c4 a4 b6 h3 f6 h2 f7+ Kf8 b7 a3 c5 Rh7 c6 Rh6 b5 Nd7 b8Q Re6 b6 Kg7 f8R Rf6 f5 Qe8 g6 Ra5 c7 Qd8 b7 Raa6 Qb3 Rab6 Be3 Nh6 Nf3 Nf7 Nc3 Nd6 Na2 Ne4 Ne5 Rbc6 Re8 Nb6 Re1 Bd7 c8B Rc2 Nc1 Rf8 Rg1 h1Q Nc6 Qh3 Qf4 Be6 b8R Bf7 Ra8 Qd6 f6+ Kg8 g7 Bh5 Rg2 Qb4 Qb1 Qb2 Rd8 Kf7 Rd6 Rd8 g8B+ Kf8 f7 Rd7 Rg6 Rd6 Qg5 Rf6 Rg1 Rf3 Rd6 Rg3 Qf6 Na4 Qf4 Nac3 Ra7 Na2 Rad7 Qa1 Rh6 Ng5 Qf3 Kg7 Qb6 Qb2 Qb7 Qb6 Bf4 Qb2 e3 Rcg2 Bb8 Qb6 Re2 Ne4 Nd8 Qg6 f8R Qh7 Re6 Qh6 Kc2 d3+ Kb3 d4 Kc4 d2 Ba7 d1B Kb5 d3 Rdd6 d2 Nc6 Nb4 Rf5 Bb3 Bf7 Kf8 Rfd5 Qf4 Rf2 Qh6 Be2 Ba2 Qf4 d1Q Nb3 Qf1 Rd2 Qa1 Nc1 Qb2 Rgd1 Bd5 Bg8+
bQBkQB2/1rNpp3/2n5/N1Npq2N/5RP1/3K1nbq/1QQQ4/n3r1R1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c6 axb5 g4 d5 cxd5 h3 Nh6 hxg4 Ng8 g5 Qb6 Rh2 Qc7 Rh1 Qd8 Kd2 a5 b4 h5 c4 a4 f4 h4 g4 h3 b6 a3 b7 h2 f6 a2 b5 Na6 b8Q Bh6 g6 Qc7 g7 Kd8 c5 Qb7 f7 Qc7 f8N Bg5 c6 Nh6 g8Q Rh7 b6 Rf7 b7 Qb6 c7+ Ke8 Na3 Qf2+ Kd3 Qg2 f5 Bd2 f6 Qf2 Nh3 Bf4 Nc4 Qb2 Rg1 h1Q Na5 Qbg2 Ne6+ Rf8 Nc5 Nf5 Qd2 Bg3 Nf4 Ra7 Nh5 Qgh3 Rb1 a1N Rb4 Nb3 Rf4 Q1h2 Qg7 Rh8 Qa8 Na1 b8Q Nd4 Qc6 Rh7 Qa4 Rh6 Qac2 Nf3 Qh8+ Kf7 Be2 Bb7 c8Q Bc6 Qcb7 Rh7 Qbb2 Ba8 Bf1 Rb7 Qhd8 Kg6 f7 Rh8 Qe8 Rh6 Qc7 Nb8 Qcb6+ Nc6 f8N+ Kg5 Qa7 Re6 Qab8 Re1 Nfe6+ Kh6 Nc7 Qe2+ Kc3 Qe6 Ba6 Qe5+ Kd3 Kg5 Qf8 Kg6 Qfd8 Ra7 Bc8 Rb7 Qdb4 Qf6 Be3 Kf7 Qbd2 Qf5+ Re4 Qe6 Bh6 Qe5 Qh8 Nfd4 Bf8 Nf3 Nb5 Ke8 Rf4 Kd8 Nc7 Rb6 Qg8 Rb5 Qf7 Rb7 Qe8#
4r2q/2PbkQ1R/1n3Nqp/N5N1/3R1BbR/1B2p1Rp/1Kn4b/1Qr3NR b - - 0 1 illegal: No possible last move, all moves rejected
K2N2QQ/Brpb4/p2P1Q2/RN5Q/p2rbN1b/q4N2/k2nB2N/1R4nq b - - 0 1 legal: proof: e4 b5 h4 d5 a4 bxa4 c4 g5 cxd5 f5 exf5 Bd7 hxg5 Bc8 Ke2 Kf7 Kd3 e5 Ke4 h5 f4 a6 b4 h4 d4 h3 g4 h2 b5 Rh7 g6+ Kf6 b6 Ke7 g5 Kd6 g7 Rh5 b7 Qe7 f6 Rh8 f5 Nc6 b8Q Na5 f7 Rh3 f6 Rd3 g6 Nc6 Nc3 Nh6 g8N Nd8 g7 Nb7 Qh5 Bg4 Be3 Be6 Be2 Nf5 Rb1 Na5 Nf3 Nc4 Nh6 Ra7 g8Q Bg7 f8Q Bd7 f7 Nh4 Ng4 Rb7 Qfd8 Bh8 f8N Bf6 Ne6 Qf8 Rhe1 h1B Nf4 Rd1 Nh2 Nd2+ Kd3 Bg5 Rg1 Be7 Rg5 Bf6 Bf2 e4+ Ke3 Ng6 Rf5 Bh4 Qgh8 Ne5 Qdf6+ Be6 Qa8 Qe7 Qag8 Qf8 Ne1 Nef3 Re5 Ng1 Nb5+ Kd7 d6 Kc6 d5+ Kc5 Nef3 Bd7 Ra1 Kb4 Kd4 Kb3 Kc5 e3 Rb1+ Ka2 Rg5 Bh3 Kc6 Bc8 d7 Qa3 d8N Bg2 Bf1 e2 Ba7 e1Q d6+ Be6 Rd5 Bf5 Bd3 Bgh3 Bf1 Be4 Be2 Qf1 Qhe8 Qg2 Qeh5 Qh1 Qc3 Rb8 Qcf6 Nb3 Nbd4 Rd3 Qfg6 Nd2 Qgf6 Ra8 Kb7 Bd7 N4c6 Rc8 Ra5+ Rd5 Ncd4 Ra8 Bb6 Ra7+ Kb8 Rb7+ Ka8 Qe3 Nb5 Qa3 Qgg7 Rd3 Ba7 Rd4 Qgg8+
1NQ5/1p1nq3/N2R1q1B/2R4R/1Kp2k2/r1r2bpQ/1N1P2BN/R1n2bbN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kd7 h4 Kd6 f4 g5 a5 e5 f6 c5 f7 e4 f5 Ke5 h6 e3 d6 g4 a6 e2 a7 b3 f6 c4 d7 b2 h7 Bh6 f8N Kf4 f7 Ke5 h5 Nf6 Ne6 Qc7 f8N Na6 d8R Qf7 Bg2 Nc7 Qb3 Nfe8 Qh3 Bf4 h6 Nd5 Ng7 Ne7 Rd6 Be6 Nf3+ Ke4 Nd7 Bg5 Nf5 Bd5 Nh2+ Kf4 Nb8 Qe6 Ng3 Be4 Nc3 b1B Nd1 Qf7 Ba3 Bbd3 Nb2 Nf6 Rg1 Bc6 Nh1 Bf3 Bc5 Rf8 h8Q Nc6 h7 Nd7 Bb6 Na5 Be3+ Kf5 Qg8 Nb3 h8R Nc1 Rh5 Qf6 Bf4 Rf7 Qc8 Re7 Rf1 Re3 Ra5+ Ke4 Rc5 Bh6 Kf2 Bf8 Bh6 e1Q+ Kg1 Qeh4 Rd1 Qhg5 Kf2 Kf4 Re1 Bf1 Rd1 Ne2 Ra1 g3+ Ke1 Rd3 Kd1 Nc1+ Kc2 Re3 Rd3 Qe7 Kc3 Bg7+ Kb4 Bd4 Rda3 Qf6 Ra6 Rc3 Rd6 Bg1 Nc6 Rb8 a8N Qe7 Nc7 Ra8 Nb8 Raa3 Nca6 Qf6 Bf8 Qge5 Bg7 Qee7 Bh6+
2R5/1nk2r1n/1R2Q2N/Q1bB1Nn1/r2nBp1Q/2K4B/4p1Pp/2B1BqQb b - - 0 1 illegal: No proof kernel
3B4/1nBK2Q1/1bN1Q2q/2P1br1R/2kNpNB1/1bN5/R2pbpNn/6rB b - - 0 1 illegal: No proof kernel
K1R1r1b1/6nN/2p3q1/1pB1N1QQ/1P2kN2/b1pn1n2/2r1QnB1/QQ2N2R b - - 0 1 legal: proof: e4 b5 g4 d5 c4 dxc4 a4 f5 exf5 h5 gxh5 Qd4 a5 Qb6 axb6 Bd7 Qa4 Be6 Qd1 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 g5 Kd5 e5 h4 a5 b4 g4 d4 g3 f4 g2 b7 c3 h6 a4 h5 a3 h7 a2 h6 Bg7 Nf3 g1N Be3 Ra5 Ne1 Nh3 Na3 Na6 Kc6 Ra4 b8Q Ng5 d5 Ne4 d6 Ng3 d7 Ra5 d8Q+ Kf7 f6 Ke6 f7 Kf5 f8N Be6 Kb7 Ke4 f5 Nh5 Ka8 Ngf6 Nc4 Bg8 Ne6 Ng4 f6 Nf2 Rc1 a1Q f7 Qb1 f8N Ra2 Qg5 Rc2 Nf4 Nc5 Qe8 Ncd3 Bc5 Bf6 Ne3 Ng7 Ng4 Qb3 Bh3 Qf7 Qe6 Qg6 Qa2 Bb3 Qb1 Rg8 h8Q Be6 Ka7 Bf7 Nh7 Re8 Qh4 Bg8 Bg2+ Kf5 Qe2 Bg5 Rd1 e4 Ne5 c6 Kb7 Nc1 Rd8 e3 Rc8 Ncd3 Kb8 Ne6 Ka8 Ng7 Qed1 e2 Qa1 Ba2 Qdb1 Bb3 Qf8+ Bf7 Qe7 Bg8 Nd5 Bc1 Nf4 Ba3 Qg3 Ng4 Qe3 Nh2 Qd2 Nf3 Qg5+ Ke4 Nf8 Rb2 h7 Rc2 h8Q Nf2 Qh3 Qh7 Qhh5 Qg6 N1d3 e1N Nh7 Ba2 Qdd1 Bg8 Nb2 Ned3 Qf1 Nc1 Nbd3 Ne2 Qfd1 Nc1 Ne1 Ncd3 Qe2+
2NNQ1N1/2bbBb2/1p3rp1/2BR1p2/kR6/nN3B1b/P1qN4/KQ1n1B1r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 d5 e4 Kd7 h4 Kc6 c4 f5 Kc2 d4 Kb2 b3 h6 d3 e6 d2 e5 g6 e7 b6 e8B+ Qd7 h5 Ra7 e6 Na6 h7 Bb7 e7 Nf6 h6 Ba8 Ne2 Rc7 Nd4+ Kb7 c6+ Ka7 c5 Rg8 h8N Ne4 h7 Nf2 Nf7 Rh8 Nd8 Qc8 Bf7 Nb4 e8Q Bh6 Bd5 Rf7 c7 Bc6 Bf3 Bd7 c6 Bf4 Qc2 d1B Be3 Bg3 Nd2 Rf6 Qb1 Nc2 Bg5 Na3 Bh4 Rd6 Be7 Rf6 Rh4 Bh2 Re4 Be2 Re5 Ka6 Rb5 Bc4 Bc5 Bf7 Be7 Qb7 c8N Bc7 Bc5 Qb8 Ne7 Qb7 Ng8 Qc8 Rb4+ Ka5 Rb5+ Ka4 Be7 Be5 c7 Bd6 Qd3 Bf4 Rd1 Be5 Qb1 Bh2 Kc3 b2 N4b3 Bd6 Ne4 Bg3 Rdd5 Bd6 Ned2 Bf4 Qc2 b1B Kb2 Nd1+ Ka1 Bg3 Qc1 Be4 Qb1 Bf4 Bg4 Bg2 Bf3 Bh3 Bc5 Qa8 c8N Bc7 Nh6 Rg8 h8B Qc6 Bg7 Rh8 Ng8 Rh5 Bgf8 Rh6 Bce7 Qc2 Bc5 Bg2 Bfd6 Rh1 Be7 Bh3 Rb4#
3bkB2/R1nbN1p1/pB1bb1n1/1B2rB1q/R4Q1B/1r6/p1N1PKQ1/3R3R b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Nh6 fxe5 Ng8 a4 bxa4 h4 c5 d4 f5 b4 c4 d6 a6 e6 a3 d7+ Ke7 b5 a2 b6 c3 h6 f4 b7 c2 d5 f3 d6+ Kf6 e7 Kf7 e8B+ Ke6 h7 Nf6 h5 Rg8 h8R Nh7 h6 Qb6 d8B Nc6 b8Q Ne7 d7 Qc5 Ba3 c1B Qf4 Rb8 Nh3 Ng6 Bb6 Ke7 d8B+ Ke6 Bb5 Ra8 Bh4 Nf6 h7 Ke7 Qd5 Be6 Bb4 Ra7 Na3 Rb7 Nc2 Bd7 Qdg5 Ke8 Qg2 Qh5 Kf2 Bd6 Ba3 Bd2 Rd1 Nd5 Bac5 Rf8 Rg8 Ba5 h8R Nc7 Rh7 Be5 Rgh8 Rg8 Bf8 Bd6 Rh6 Ne5 Rf6 Ng6 Rf7 Rb8 Qfg5 Rb7 Nf4 Rb8 Nd5 Rb7 Ke3 f2 Qf4 Rb8 Ne7 Rb7 Qgg3 Rb8 Bg2 f1B Be4 Bh3 Kf2 Be6 Bf5 Rb7 Qg2 Rb8 Rd4 Rb7 Ra4 Rb8 Bbd3 Rb7 Rd1 Rb8 Bd4 Rb3 Bb6 Nd5 Ba7 Qg4 Bg3 Bc6 Bb5 Bc8 Rhh1 Rh8 Be4 Be6 Ng8 Rh5 Rc7 Bcd7 Ne7 Re5 Bf5 Qh5 Rb7 Bac7 Bb6 Bd8 Bh4 Nc7 Ra7
3nQ3/QR1B1pK1/QB1b2b1/p5BN/1BP3n1/1rR1npn1/1Q2B1rq/1N3k2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 h4 g5 b4 f3 c4 d6 h6 g4 b6 g3 b5 g2 b7 Qb6 h5 Qd8 b6 Qe8 h7 Qd7 h6 Kf6 c6 Ra7 c7 Ne7 Nh3 g1N Ra3 Kg6 Bg5 Kh5 Nf4+ Kg4 Rc3 Kg3 Nh5+ Kf2 e3 d5+ Ke5 d4 Kf6 d3 e4 d2 e5 Na6 b8B Ng6 b7 Ba3 e6 Ne5 e7 Ng4+ Kg7 Nc5 e8Q Qa4 Be2 Bd7 c8B Bc6 Bd7 Be4 Bd6 Qc2 b8Q Rb7 Qa7 Rb3 Qe1+ Kg2 Bd1 Bg6 Q1e6 Nb7 Bb4 Ne2 Qea6 Nd8 Rf1 Rf8 h8B Ng3 h7 Qa2 Rf2+ Kg1 Re2+ Kf1 Re5 Qb2 Rb5 Qc2 Rb7 Qa2 Qe4 Re8 Qc2 Re2 Qb2 Rg2 Kf8 Be4 Bd4 Bc2 h8Q Bg6 Bc2 d1N Kg7 Nde3 Bd1 Ne4 Qe8 Ng3 Bbe7 Bd6 Bb6 Bf4 Bb4 Bd6 Qa1 Qf2 Qa2 Qg1 Qb2 Qh2 Be2+
1r2brR1/3bp2R/7p/1n1n1B1B/Pqb1Q1KR/2N4B/B1R2pQb/2Bk1N2 b - - 0 1 illegal: No proof kernel
4BNBn/Rbp2qN1/2N1n1Np/N1n2rRp/6QP/b1k1KB1Q/n1rB4/8 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 fxe5 g6 a4 Bb7 axb5 Na6 Qb3 Nb8 Qf3 Bc8 Qh5 gxh5 Kf2 Kd7 b4 a5 g4 f5 e4 a4 h4 h6 d4 f4 e6+ Kd6 g5 a3 e7 a2 e8B f3 b6 Rh7 b5 Qe7 g6 Qf6 e5+ Ke7 e6 Kd6 b7 Qd8 e7 Bg4 g7 Nc6 b8Q Na7 b6 Bf5 b7 Qd7 Na3 Nc8 Nh3 Qd8 Bg2 Qd7 Rg1 Be4 Nf4 Nf6 g8B Rf7 Ng6 Nh7 Ke3 f2 Bf3 Rf5 Rg5 Ra5 Qa8 Rc5 b8Q Rc2 Qb3 Qe6 Qaa4 Qf7 Bg4 Bg2 Bf3 Bh1 Qd3 Bg2 Qf1 Bh1 Qh3 f1N+ Kd3 Ng3 Ke3 Rc4 Qd1 Ne4 Qg1 Nc3 Qgg4 Qf6 Nc2 Bg2 Nb4 Qf7 Nc6 Rc5 Na5 Bh1 Rb1 a1N Rb7 Nb3 Ra7 Na2 Bb5 Rc6 e8N+ Kd7 d6 Ke6 d7 Nd6 Ba4 Rc2 Ng7+ Kf6 d8N Nc5 d5 Bg2 Nh8 Ke5 Nde6 Be7 Be8 Nf8 Nf4 Nfe6 Nfg6+ Kf6 Nf8 Ke5 Qa4 Qg6 Qc4 Nf7 d6 Qh7 d7 Bd6 Ba8 Bb7 Qcg4 Kd5 Nhg6 Nh8 d8N Be7 Ne5 Qg6 Ndc6 Qf7 Neg6 Bd6 Nd4 Be7 Nab3 Kc4 Nc6+ Kc3 Nba5 Ba6 Nce5 Bd6 Bf3 Bb7 Nec6 Na4 Bh7 Ba3 Bg8 Nac5 Bd2+
N2B1R1b/1qr1Nn2/3RQpBp/NN1BQ3/Nn3P2/6q1/BKn2q1p/r4k2 b - - 0 1 legal: proof: e4 b5 h4 d5 d4 c5 dxc5 g5 a4 gxh4 axb5 d4 Na3 Be6 Nb1 Bd5 exd5 Qd6 Qf3 Qc7 Qd1 Qd8 Kd2 Kd7 b4 e5 c4 a5 Kc2 h6 g4 d3+ Kb2 h3 c6+ Kd6 g5 h2 g6 a4 g7 d2 b6 e4 b5 Kc5 b7 Kd4 c7 e3 c8B e2 d6 Kd3 d7 Qg5 d8N Qe7 b6 Ra6 c5 Ra8 c6 Rh7 c7 Na6 b8N Qe3 b7 Qc5 Qe1 d1Q Nd7 Ra7 b8Q Qf5 Bb7 Ne7 g8B Ng6 c8N Ne5 Bg5 Qe4 f4 Nc5 Ndb6 Be7 Nf3 Bf6 Nc6 Bh8 Na8 Na6 N8e7 Nb4 Nfd4 Qf3 Qc7 Qf2 Nb5 Rg7 N1c3 Qb3+ Kc1 a3 Na4 a2 Na5 Ra6 Bd5 Ke3 Rb1 a1N Bfg2 Rh7 Bge4 Nac2 Bg6 Qg3 Qc6 Ra7 Qec3+ Kf2 Rd1 e1Q Qe6 Kf1 Qa1 Qbf3 Kb2 Qfg2 Ba2 Qb7 Rd8 Qf2 Rbd1 Ra6 R1d6 Qg3 Bb1 Qef2 Rf8 Rg7 Nf5 Rh7 Bd8 f6 Ne7 Nf7 Ba2+ Kg2 Qae1 Ra7 Q1e5 Kf1 Nac6 Ra5 Nac3 Ra3 Na5 Ra4 Bd5 Ra1 Na4 Ng5 Nf5 Rc7 Ne7 Nf7 Ba2 Ng5 Qc8 Qfb6 Bge6 Nf7 Bed5 Qbf2 Qce6
3n1Q2/N1p1Br2/1rqBnbk1/n1Q3B1/pqp1R2K/1B3QQ1/PBR1Nr2/8 b - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 g5 c4 bxc4 h3 f5 Na3 Bb7 Nb1 Bf3 gxf5 g4 Qc2 g3 Qd1 Bg4 hxg4 Ke7 Qd6+ Kf7 Qd1 Ke8 b4 Kf7 f4 a5 e4 d5 b5 h5 f6 a4 b6 h4 f5 g2 Kf2 d4 b7 h3 Kg3 h2 g5 d3 e6+ Ke8 e5 d2 g6 Rh4 e7 Na6 b8B Re4 f7+ Kd7 e8Q+ Kc8 e6 Rh4 e7 Nh6 g7 Ng8 f6 Rh6 Na3 Rg6+ Kh4 Nh6 g8Q Nb4 Ne2 g1N Nb5 Nc6 Ba7 Bg7 f8B Nf7 Be3 Nh3 Bg5 Na5 Qc6 Nf4 e8Q Ne6 Bd6 Rb8 Qd5 Rb6 Qef8 Kd7 Qc5 Qb8 Bb2 Nfd8 f7 Bf6 Na7 Rg7 Rc1 Qb7 Qb3 d1R Rc2 Rd2 Qf3 Qb8 Rg1 h1Q+ Bh3 Qb7 Rg4 Qc6 Re4 Qb1 Bg4 Qe1+ Ng3 Rf2 Ne2 Qb4 Bh5 Rh7 Qgg7 Be7 Qge5 Bf6 Qeg3 Rg7 Qh8 Rh7 f8B Rf7 Bg4 Ke8 Bfe7+ Rf8 Qh6 Kf7 Qh8 Kg6 Qg8+ Ng7 Qh8 Rf7 Qf8 Nge6 Nd4 Kh7 Qh1 Nab7 Rc1 Rg2 Bd1 Re2 Qhf3 Rf2 Bb3 Kg6 Rc2 Na5 Ne2
N1r1B2q/2b2R2/1pbQQ1R1/1N1pnr1Q/Q6Q/R3p1rq/3PK2k/B1R3b1 b - - 0 1 legal: proof: e4 h5 b4 f5 exf5 h4 b5 h3 b6 Na6 gxh3 Nc5 h4 Nb3 c4 Na5 c5 axb6 c6 b5 h5 b4 Qa4 b6 Qd1 Nb7 cxb7 Rh6 Bd3 Rh7 Bf1 Rh8 b8Q Kf7 f4 Kf6 a4 c5 h4 d5 a5 e5 h6 g5 a6 c4 a7 e4 h7 e3 h5 b3 h6 b2 Qa4 c3 Bb5 c2 Be8 g4 Ke2 g3 Nf3 g2 Ng5 g1B Na3 b1R Nb5 Rb4 Ne6 Bh2 Bb2+ Rd4 Rag1 c1Q Ba1 Qa3 Qd6 Qc3 Nec7+ Be6 Qd7 Rc8 a8R Bd6 Rg3 Qb4 Rc1 Bg1 Ra5 Qb1 Na8 Ne7 Ra7 Rg8 h8Q+ Rg7 h7 Ng6 Qc6 Bb8 Ra5 Ne5 Rg6+ Ke7 Ra7+ Bd7 Ra6 Bd6 f6+ Ke6 f7+ Kf5 f8R+ Ke4 f5 Kf4 f6 Qf5 f7 Qh3 Ra7 Bc7 Qe6 Bc6 Ra6 Ng4 Ra5 Kg3 Ra6 Rg8 Qhf6 Rb4 h8Q Rf4 Qh5 Kh2 Qfh4 Rf3 Qb4 Rf4 Ra3 Rf5 Qa4 Rg7 Rh8 Rg8 f8Q Ne5 Qfd6 Qf6 Rh7 Qh8 Rf7 Rg7 Rh6 Rg3 Rg6
K1B1k3/1BpR2Q1/6qp/5rBR/1RPb3q/1b2B1qN/pRn5/1NRQ1r1b b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Na6 h3 Nc5 h4 Ne4 Bd2 fxg4 Bc1 g3 Nd2 g4 Nb1 Ng5 hxg5 Bg7 Qd4 Bh6 Qd1 Bf8 Kd2 d5 Ke3 a5 Kd4 h6 b4 a4 f4 g2 c4 a3 e4 a2 b6 g3 g6 Bg4 b5 Qd7 b7 Qe7 b8R+ Kd7 b6 Be6 b7 Ra5 f5 Qf7 f6 Be7 g7 Qf8 f7 Bg4 e6+ Kc6 e5 Bd6 e7 Kd7 e8B+ Ke7 e6 Nf6 g8Q Bf3 Qg7 Ng4 Rh5 Ne3 Bc6 Qd8 Nh3 g1Q Be2 Bh1 Bg4 g2 Bd2 Nf1+ Be3 Bc5+ Ke5 d4 Bf5 Qc8 Kd5 d3 f8B+ Kd8 Bd6 d2 Bdf4 Rf8 Bg4 Qf2 Bg5+ Qf6 Bf5 Rf7 Bg4 Ke7 Bf5 Qe8 Rd8 Qg8 Rd7+ Ke8 b8R+ Qd8 e7 Bd4+ Rb5 Qh7 Bg4 Qg6 Bb7 Rf3 Be6 g1Q Kc6 Qg3 Rb2 Rd5 Na3 Rdf5 Rc1 Nh2 Nb1 Rf1+ Rd5 Nf3 Rd6 Qh7 Bec8 Ne1+ Rd5 Nc2 Rb4 R5f3 Rd7 Qd3 Ba8 Qh7 Kb7 Qg6 Kb8 R3f2 Bb7 Rf5 Ka8 Na3 Qe1 d1B Qe2 Bc2 Qd1 Bb3 Qe5 Kf7 e8R+ Qe7 Rg8 Nc2 Rg7+ Ke8 Rf7 Bc5 Qg7 Bd4 Rf6 Qe4 Rfb6 Qeh4 R6b5 Ba4 Rb2 Bb3 Rb4
Qb1NKR2/4p1r1/b3Qp1Q/2rq1P1r/r2RQ3/4QnB1/NrB2p2/1kN2N2 b - - 0 1 illegal: No possible last move, all moves rejected
k6r/R2N2K1/nR1p1B2/N1RB2BQ/2q1n1B1/2bP3n/Q1Rr2pp/1n3nR1 b - - 0 1 illegal: No proof kernel
N2Qn3/B1R1pN2/4R3/1nBn1BR1/1Q1n2Bp/3kPq1b/Kp2n3/1r1BR1r1 b - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 h4 Bh6 h5 Ra6 g6 Bf4 g5 Be5 h6 Bg7 hxg7 Ke8 Ba3 Ra7 Bc1 Ra8 a4 Kd7 d4 Kd6 Kd2 c5 Kc2 f5 Kb3 h5 a5 b5 e3 f4 a6 f3 a7 c4+ Ka2 c3 Nd2 h4 Nc4+ Kc7 d6+ Kc6 d7 Kd5 Qa4 Ke4 d5 f2 d6 c2 Bd3+ Kd5 Nf3 f1N Nfe5 Nf6 g8B+ Kc5 g7 Nh5 g6 Nc6 Nb6 Rb8 a8R Nd4 Bf5 Nf6 Ba3 Nh2 Rae1 Qf8 d8B Ne8 d7 Nhf3 Bge6 Rg8 Nf7 Rb7 Rhf1 Rb8 Ra7 c1N+ Kb2 Rb7 Na8 Nce2 Ka2 Rb8 Bg4 Rb6 Bef5 Kc4 Qa5 Rb8 Bb6 b3+ Kb1 b2 d8Q b4 Ka2 b1N Rc7+ Nc6 Rg1 Nfd4 Ba7 Nb5 Rgf1 Bd7 Rf4+ Kc3 Re4 Kd3 Qb6 Ncd4 Qc5 Nd2 Qb6 Nc4 Qa5 Nb6 Qa4 Rh8 g8B Nd5 g7 Rh6 Bgh7 Rg6 g8R Rg7 Bhg6 Rb6 B6h5 b3+ Kb1 Rg5 Bc5 Rb8 Qb4 Rg6 Bf3 Rg1 Rg5 Be6 Bfg6 Bh3 Bfg4 b2 Ka2 Rc8 Rd7 Rc6 B6f5 Rd6 Rc7 Rc6 Bd6 Rc1 Bdc5 Rb1 Nh6 Qf6 Nf7 Ng3 Bd1 Nge2 Bf3 Qc6 B3g4 Qf6 Be6 Qf2 Bef5 Qf3 Re6+
3rR1K1/nNN3Qr/4BN2/2pnN2r/pNP5/QR2r3/b2p2BB/2kBq1n1 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Be7 h4 fxg4 Ra6 g3 Ra5 g4 Ra1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 c5 e4+ Kg6 b4 h5 f4 a5 c4 d6 b6 a4 b7 g2 f5+ Kg7 e6 g3 e7 h4 e8B h3 e5 h2 g6 Ra5 e6 Kf6 b5 Qc7 g7 Nd7 b8N Bb7+ Nc6 Bc8 b6 Rh4 e7 Qd8 b7 Rh5 b8N Ra8 Bf4 Bb7 Ra2 Qb6 Nf3 g1R Na3 g2 Na6 Qb5 Qd3 Qb2 Nb4 Rd8 Ne5 Qe2 Nb5 Qe1 Nc7 Nb8 Qa3 Bc8 Bg3 Kg5 f6 Bf5 f7 Bb1 Ke6 d5 f8Q d4 Kf7 d3 Na5 Nf6 g8B Nd5 Rb2 Nc6 Nb7 Na7 Qg7+ Kf5 Bd7+ Ke4 e8N Ke3 Bg4 Ba2 Bd1 Rh7 Nf6 Rh5 Rb1 Kd2 Rb2+ Kc1 Bf4+ d2 Bg3 Rd6 Kf8 Rd7 Be6 Re7 Kg8 Rd7 Bfe2 Rd6 Bf3 Rd8+ Nce8 Rf1 Be4 g1N Bg2 Rf3 Bf4 Rd7 Nc7 Re3 Bg3 Nh3 Rf1 h1R Bh2 Ng1 Rf4 Rhh3 Rh4 Rd6 Rh8 Rh5 Kf7 Rh7 Re8 Rd8 Kg8 Rh5 Bf4 R1h3 Bg3 Rh7 Bh2 R3h5 Rb3+
3Q4/Br6/pb1QR2n/P4BpR/4R3/q2rr1R1/1pQQ1QKN/1kqr1Nn1 b - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 c5 b4 f6 bxc5 b6 h3 Ba6 h4 Bd3 h5 Bg6 hxg6 f5 Qd2 fxg4 Qd5 Qc8 Qd1 Qd8 e4 Ke7 a4 Ke6 f4 d5 Kf2 h5 c4 h4 c6 g3+ Kg2 a6 a5 b5 f5+ Ke7 e6 Kd6 f6 Kc5 e5 Kb4 c7 d4 c8Q d3 f7 d2 g7 Ra7 c5 Rc7 c6 Rh7 e7 Qd6 e8R Rb7 c7 Nd7 e6 Nh6 g8Q Ne5 e7 Nf3 Qd7 Bg7 f8Q Bd4 c8Q Bb6 Qdc2 d1R Qf2 Rd3 Ra3 Re3 Bd3 h3+ Kf1 h2 Kg2 Rf7 Qcc2 Rf5 Qg6 Rd5 Bf5 Rdd3 Nd2 Qc5 Nf1 Qc3 Ne2 Ng1 Qgd6+ Kc4 Qd8 b4 Nd4 b3 Nf3 b2 Qcd2 Qb4 Qh8 Qc5 Qh7 Qb4 Rg8 Qb3 e8R Qa4 Rg6 Qb4 Ra2 Kb3 Re4 Qa4 Ra1 Qa3 Rb1 Ka2 Rge6 Ne2 Rg1 h1R Qhc7 Rh5 Rh1 Ng1 N3h2 Rh4 Qcc2 Rf4 Qdd1 Rff3 Qde2 Rd1 Bd2 Rd3 Bc3 Rfe3 Bd4 R1d2 Re1 Rd1 Qcd2 Kb1 Rg4 Bc7 Ba7 Bb6 Ree4 Rd5 Qc4 Rdd3 Qcc2+ Ka1 Ra4 Re5 Qf3 Ne2 Kh3 Rb1 Qff4 Re8 Nf3 Ka2 Ne3 g2 Rg3 g1Q Rd4 Nc1 Re2 Qd1 Kg2 Ka1 Ree1 Ne2 Nf1 Ng1 Rh5 Re4 Qf2 Qd2 Qe3 Rd1 N3h2 Qc1 Qed2 Re8 Re6 Ka2 Rf6 Ree3 Re6 Ka1 Rde4 Ka2 Qcc5 Kb1 Qcc2+
1rbNbK2/B3N2q/N1B2Rp1/b5Nk/RQ6/p1Bbq1Qp/1n4P1/1Br4N b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Na6 h5 Nc5 h6 Ne6 Ra6 Ke7 Ra1 Ng7 hxg7 Ke8 Kf2 h5 Kf3 f5 d4 Kf7 e4 c5 b4 a5 d6 a4 d7 c4 d5 c3 d6 c2 b6 h4 b7 h3 b8N Ba6 e5 Rh6 b5 Qa5 d8Q Bc8 d7 Rh7 b6 Rh8 b7 Qb6 Nc3 Ne7 g8N Rh7 e6+ Kg7 Qe1 Qb3 Bd2 c1Q Na6 Rb8 Qc7 Nc6 d8N+ Be7 Bd3 Nb4 Bb1 Nd3 Nge2 Nb2 Ng3 Qb6 Rf1 Qa7 Qb6 Bb4 e7 Ba5 e8B Rh4 Ne7 Kh6 Nh1 Kh5 Bc6 a3 Qg3 Qe1 Qb4 Qe6 Ne4 Qg8 Nc7 Qh7 Na6 Qb6 Bc3 Rg4 Ke2 f3+ Kd2 f2 Ng5 Rd4+ Ke3 Rd1+ Kf4 Rc1 Ke5 f4 Kd6 f3 Re1 f1B Re4 f2 Rg4 Ra8 b8B Bd3 Ba7 f1B Ra2 Rb8 Re4 Nd1 Rf2 Qe3 Rf6 Nb2 Rg4 Bb5 Rgf4 Bfd3 Rc4 Bb7 Kd7 Bc8+ Ke8 Ba4 Kf8 Bb5 Bb7 Be8 Bc6 Kh6 Qb6 Kh5 Ra4 Bf1 Qb5 Bd3 Qb4
N4QBk/1nQK4/1b2R3/r3r3/R1pRqp1n/2B1QQp1/Q1Pp4/1N1b1R1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e5 fxg5 hxg4 d4 Rh5 dxe5 Rh8 Kd2 a5 Kc3 d5 Kd4 f5 h4 Kf7 e4 Kg7 b4 a4 b6 a3 g6 g3 b7 c6 h5 f4 b5 a2 e6 c5+ Ke5 d4 b6 d3 e7 d2 e8R Ne7 h6+ Kg8 g7 Nd5 h7+ Kf7 Qf3 Ne7 Bb2 Bd7 Kd6 Na6 b8Q Rg8 h8R Nc7 e5 Ra5 e6+ Kg6 b7 Na6 Bc4 Nb4 Qc7 Qa8 b8Q Nd3 Nh3 Nf2 Ng5 Qe4 Rf1 Nh1 Bc3 Bc8 Bd5 Nf5+ Kc6 Nh4 e7 Bh3 Ne6 Bg4 Kd7 c4 Qb2 Bh5 Rh6+ Kf7 Rd8 Rh8 e8Q+ Kg8 Qb3 Bg4 Rf6 Rh5 Qe7 Kh7 Qec5 Re5 Qce3 Bc5 Qa3 Qg6 Qa4 Bb6 g8Q+ Kh6 Qf8+ Kh7 Qcc5 Bh5 Nc7 Qe4 Bg8+ Kh8 Na8 Bg4+ Re6 Bh5 Qc7 Bg4 Na3 Bh5 Rab1 a1N Rb4 Nb3 Nb1 Bg4 Qa2 Nc5+ Kd6 Bh5 Ra4 Nb7+ Ke7 Bg4 Rd4 Bh5 Kd7 Bg4 Qff2 Bd1 Qff3
2QQ4/2QBR2r/1RN2RPb/2RnN3/KBp1b3/3Qppn1/2Rn1prk/5q2 b - - 0 1 illegal: No proof kernel
3bN2R/3Rn1Q1/1pr1Q2r/N3R3/kp3K1B/pP1bBp2/1B1nq3/RBB4r b - - 0 1 illegal: No possible last move, all moves rejected
4Q3/3PRQBB/3p1N1Q/4rnrR/NQqn4/K1p1bp2/1N1N1pb1/1N2rk2 b - - 0 1 illegal: No proof kernel
b2b1Rbk/1Qp3B1/N1QPn1Rp/r7/3N1r2/n3K3/BBBBpRqp/6R1 b - - 0 1 illegal: No possible last move, all moves rejected
1Q1r4/3b1P1R/6QQ/B1K1n3/1p1RNpq1/qp4r1/k1BB1pnN/2Q1Q1bB b - - 0 1 illegal: Other
nn3KR1/pNpN2n1/b2pB2R/1R2Q2b/R2P2p1/B2Nr2Q/1q1N4/5Nbk b - - 0 1 legal: proof: f4 e5 g4 exf4 a4 b5 axb5 h5 gxh5 Ke7 b4 Ba6 c4 Qc8 b6 Kd8 c5 Ke8 b5 Qd8 c6 Bc8 Kf2 Na6 Ke1 Rb8 Qa4 Rb7 cxb7 Nb8 Qc2 Ba3 Qd1 Bf8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 d4+ Ke4 h4 g5 h6 f5+ Kh5 g4 Kg6 f3 Kf7 f2 h5 f4 h7 f3 h6 Qg5 Ra4 Qe3 Qe1 Qc3 Ba3 Qa5 Nd2+ Kf4 e4 Kg3 e5 Qc3 e6 Qc2 e7 Nf6 e8N Qd1 Nd6 Nd5 Bc4 Kg2 Qe5 f1B Ne2 f2 Ng3 Nc3 Be6 Bd3 Ngf1 Qb3 Rh3 Rg8 h8N Qb2 h7 Bh6 Ng6 Nd5 h8Q Be3 Rh6 Re8 Nf4+ Kg1 Kg7 Bg6 Nd3 Bh5 Qh7 Re7+ Kf8 Kh1 Qhh8 Nc6 b8N Ba6 b7 Nb6 Qh7 Na8 b6 Qb4 N6e4 d6 Nec5 Qb2 Nbd7 Nb8 Qhh8 Bf4 Qh7 Bh2 Qhh8 Nc6 b8R Bg1 Rd8 Nb8 b7 Kg2 Nh2 f1N Re8 Ne3 Nhf1 Nf5 Rc8 Nc6 b8R Ng7 Rb5 Nb8 Nb7 Rf7+ Kg8 Rf3 Re8 Re3 Kf8 Qc1 Ke7 Qa1 Rg8 Qb2 Kf8 Kh1 Qg3 Ne8 Qhe5 Ng7 Qh3+
q1Bn1n2/N1pb3B/Q2p3Q/1b5R/p5k1/b1KPpr2/B1nQBQ1N/2B1R3 b - - 0 1 illegal: No proof kernel
B6K/Rn3p2/kNNQp1p1/4BNr1/3r1b1N/3RRPn1/3qp1RR/2r1r2Q b - - 0 1 illegal: No possible last move
N4B1n/1Kpr1k1N/n1P2R1r/1pRB2pb/1pn2R2/q6Q/p2N1R1N/1NQ5 b - - 0 1 illegal: Other
r3NkNB/2R5/2P3p1/1BR2RBp/2Q3nr/QKn1b3/4br2/N1N1R3 b - - 0 1 legal: proof: b4 a5 bxa5 f5 f4 b5 e4 c5 exf5 e5 fxe5 b4 d4 cxd4 a3 Bd6 axb4 Bc5 b5 Bf8 g4 g6 h4 Qe7 f6 Qe6 h5 Qf5 gxf5 Ra6 h6 Re6 Nc3 Re7 Nb1 Rg7 hxg7 Ba3 Qd2 Bc5 Qd1 Bf8 Kd2 d5 c4 h5 Kc2 d3+ Kb3 d4 e6 d2 a6 d3 a7 Bc5 a8Q Bb4 b6 Na6 e7 Bd6 c5 Bc7 c6 Rh6 b7 Kf7 b8R Nb4 e8N Rh8 Ne2 Bb7 Qc2 d1R Ra5 d2 Qc4+ Nd5 Na3 Rh6 Rc8 Ba6 Rc5 Bg3 Rc7+ Ne7 g8N Bf2 Nc2 Rh8 Na1 Kf8 f7 Nc3 Qa7 Bb5 Qa3 Be3 Bb2 Ba6 Nc1 Ned5 Be2 Nf6 Re1 Ng4 Bd3 Ne4 Bf6 Nc3 Bg5 Nf2 Qh4 Ng4 Bb5 Ne5 Qc4 Ng4 Re2 Rh1 Re1 d1R Nd6 Kg7 f6+ Kh7 Ne8 Rh4 f8B+ Rd7 f7 Rd2 Ba4 Rf2 Bg7 Bb5 f8R Ba6 Qe6 Bb5 Rff5 Be2 Nh6 Rg8 Qc4 Rf8 Bb5 Rh8 Nf7 Kg8 B7f6 Kf8 Nh6 Rh7 Ng8 Rf7 Rc8 Ra7 Rc7 Ra8 Bh8+
1b6/3P4/3B2BK/1rk1B3/Bp3QqR/RRq1N1N1/r1Qpqq2/2N1N3 b - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 h5 e4 f5 exf5 h4 a6 h3 gxh3 b4 h4 Bb7 h5 Bc6 a4 Bb5 axb5 Rh6 b6 Rh8 b7 Nc6 b8Q Nxb8 d3 d5 Ra2 c5 Ra1 Nf6 Na3 d4 Nb1 Nd5 Bd2 Nd7 Bc1 Ne5 cxd5 c4 Bh3 c3 Bf1 Nc4 dxc4 Rc8 Bg5 Rb8 Bc1 Ra8 Ke2 Kd7 Kf3 Kd6 Kf4 g6 Kg5 e5+ f6 c2 f4 d3 h4 e4 c5+ Kc7 c6 Kd6 f5 e3 h6 e2 a7 e1Q h5 Qe2 c7 Qde7 c8N+ Kc5 d6 Rb8 a8B Q7e5 h7 Qe1 h6 Kc4 d7 Kb5 f7 Qd6 f6 Qde6 Bf4 c1Q Be4 Qh3 Na3+ Kc5 Nc2 d2 Bc7 Qd3 Nf3 Qd4 Ra3 Ra8 Ne3 Qdc4 Nd6 Ra7 Rh4 Qb2 Ndf5 Qbc1 Qc2 Ra8 Ng3 Qe2 Ne1 Rg8 h8B Qa1 h7 Bg7 f8Q+ Kd4 f7 Bf6+ Kh6 g5 Bg6+ g4 Bg7 Ra7 h8N Be5 Bg2 Ra4 Bc6 Qac3 Bb5 Ra5 Ba4 Rb5 Qb8 Qe6 f8R Kc5 Nf7 Qf5 Re8 Qff2 Re6 Bd6 Ne5 Rd8 Rf6 Rf8 Rf3 Rf5 Ngf1 g3 Bf6 g2 Ng3 g1Q N5d3+ Kc6 Nc1 Kc5 Be5 Qgg2 Nh5 Qg4 Ng3 Rf6 Qf8 Re6 Qf4 Rf6 Bd8 Bb8 Bdc7 Ra6 Nc4 Qb2 Rfb3 Qc3 Ne3 Kc6 Ra2 Kc5 Ra1 Rbb6 Bc6 Ra3 Ba4 Rb5 Bg7 Ra2 Bge5 Rb2 Raa3 Ra2 Bcd6+
1r1nn1N1/qn1B3b/2bQ2N1/bQ1NB3/1Q3R2/1nQPB3/R7/3kBbK1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 d5 a4 b5 axb5 f5 exf5 d4 b6 d3 b7 Kd7 cxd3 Ra7 d4 Ra6 d5 Rb6 axb6 Ke8 f4 Kd7 Kf2 Kd6 g4 Kc5 f6 Kb4 f5 h5 d6 c5 f7 e5 g5 c4 d7 e4 g6 h3 f6 h2 g7 c3 Qc2 h4 Ra2 h3 Qd3 Kb3 Qd4 c2 Qe5 Qe7 d8Q Bf5 Qdd6 Bh7 Ne2 Nc6 b8B Nd8 Nf4 Qa7 Bb5 e3+ Kf1 Be7 f8Q e2+ Kf2 e1N f7 Bg5 Nc3 Nf6 g8N Ne8 Rf1 h1B Ncd5 h2 Ng6 Bg2 Bd7 h1B Kg1 Nd3 Rf4 Nc5 d3 Bf1 Be3 c1N b7 Bf6 Qa1 Bc3 Qfe7 Bhg2 f8B Ba5 Bg7 Bf3 Be5 B3g2 Bc7 Be4 b8Q+ Ncb7 Bcb6 Beg2 Bbd4 Bf3 Bb2 Kc2 Bbc3+ Kd1 Be1 Be4 Qc3 Nb3 Qdb4 Bh1 Qed6 Bf3 Ndf6 Bc6 Nd5 Nf6 Qdc5 Ne6 Nh6 Rg8 Qbd6 Rb8 Ng8 Ned8 Qbb5 Ne8 Qc5b4
1Nq2B1K/R1b1B1R1/R1Q5/1Pr5/bb1k3n/QBQ1qrq1/2QN1p2/6B1 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 Kf2 Kf7 b4 c5 e4 h5 d4 a5 e5 f3 Kg3 h4+ Kf4 h3 f6 c4 d6 Ke6 d7 Kd5 Kf5 a4 Kg6 g3 f7 h2 e6 c3 e7 c2 e8Q a3 b6 a2 b7 g2 b8Q Ra4 b5 Bh6 f8B Bg7 Qa7 Rh3 Ne2 g1B Be3 c1Q Qc2 Rg3 Kh7 Qb6 d8Q+ Qd6 g6 Rb4 Qa3 Bh3 Qda5 Nh6 Nd2 Be5 g7 Bg4 g8R Rc4 Rg7 Rc5 Kh8 Nf5 Bh3 Nh4 Qc6+ Ke6 d5+ Kf6 Rb1 a1Q Nd4 Qc3 Ra1 Qe1 Bf2 Qee3 Q5a4 Qe6 d6 Qc8 d7+ Be6 Qaa8 Bc7 d8B+ Ke5 Bde7 Bb3 Be6 Ba4 Bb3 Rh3 Be1 Bf2 Qa5 Bg3 Bf2 Bd6 Rhb1 h1Q Bg1 f2 Ra2 Bc7 Rba1 Qh2 Qh6 Rc6 Qb6 Qc4 Qf6+ Kd5 Qb7 Bgd6 Qab2 Bb4 Kg8 Rf3 Kh8 Qg3 Qb6 Rc5 Nc6 Bd6 Nb8 Be5 Ra3 Bc7 Ba2 Bb3 Ra7 Ba4 Bb3 Qh2 Qbc1 Qhh3 Qfb2 Qg3 Qa2 Kd4 Qc6 Qcc3 Qab2 Qe8 Ra3 Qc8 Qca1 Rf6 Ba2 Bb3 R3a6 Rf4 Qa3 Ba4 Bb3 Rf3 Qaxc3+
r1BK3b/q1PR1NRB/5B2/2b5/rQ3n2/QQB1Rk2/4Rp2/1r1Nr2r b - - 0 1 legal: proof: b4 c5 bxc5 b5 cxb6 e5 a4 h5 g4 Bb7 gxh5 Bc6 d4 exd4 f4 Bb5 axb5 Nc6 Qd2 Nf6 Qd1 Ne5 fxe5 Ng8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 Kf5 g5 h4 a5 c4+ Kc5 e4 d5 h6 g4 h5 g3 e6 f6 b7 g2 b8Q d3 e5 Kd4 h7 d2 h6 Ke3 c5 d4 c6 d3 c7 a4 e7 a3 Ke6 f5 e8B f4 b6 a2 b7 f3 Bg6 f2 Nf3 g1B Nc3 Ra7 Qa8 Qb8 Kd7 Ba3 e6 Ra4 e7 Kf4 e8R Kg4 Bh3+ Kf4 Bb2 Ra5 Re2 Kg3 Ne5 Qf8 b8Q Bh2 Nf7 Ra4 Qdb3 d1R Q8b4 d2 Rhe1 Qc5 Kd8 Qa7 Bc8 Rb1 Be4 Kf4 Nd1 Bg3 Bc3 Ne7+ Kd7 Rg8 h8R Nd5 Bh7+ Kf3 Rg1 Be5 Rg7 Re8 Rhg8 Re6 Re8 Bd4 Rd8 Re4 Re8 Nf4 Kd8 Bc5 Re5 Bb2 Rd5 Re5 Rd7+ Re4 Ne3 Rh1 Rae1 d1R Bf6 a1R Bc3 Rdb1 Nd1 Qb7 Qaa5 Qb8 Q4a3 Qa7 Q5b4 Ra6 Bg6 Ra2 h7 Ra4 h8B Re6 Bh7 Raa1 Red2 Rea6 Ree7 Re6 Rc2 Ree1 Rce2 Qb6 Rg4 Ng2 Qaa2 Ra8 Bcd4+ Bc3 Rg6 Qa7 R7e3+ Kf4 Qab2 Ra4 Q2a3 Ba1 Bhf6 Bb2 Bg5+ Kg4 Be5+ Nf4 Bg7 Bc1 Ba1 Bb2 Rg8 Bh8 Bc3 Rh4 Rg7 Rhh1 Re4 Kg3 Bgf6+ Kf3 R4e3+
r3b3/k1p3R1/3P1BQq/1QN3r1/3rR3/R2b3B/1b1nQ1B1/1QRb1N1K b - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 a5 e4 f5 exf5 g5 b4 gxh4 bxa5 b4 a6 b3 axb3 Ra7 b4 Nd7 b5 Nc5 b6 Nb7 axb7 Ra8 b8Q Kd7 d4 e5 g4 h5 f4 h3 Kf2 h2 Kg2 h4 f6 e4 f5 e3 b7 e2 f7 e1R g5 Qf6 d6 Kc6 d5+ Kb6 d7 Ne7 d8Q Qb2+ Nd2 Qb1 d6 Bd7 f6 Qd3 g6 Ra2 g7 Qh7 g8B Ra7 Nh3 Bb5 Qe8 Ra3 Bb2 Re6 Ng5 Re4 Qe2 Ra8 Ra3 Nc6 Ne6 Ne5 Nc5 Bg7 f8R Bd3 f7 Nc4 Bf6 Qh6 Rg1 Rg4+ Kh1 Rg5 Bh3 Rh7 Nf1 Nd2 Q8e4 Rh8 Qee8 Ra4 Q8e4 Rd4 Bh7 Rg8 Re8 Rh8 f8R Rg8 Rg3 Rh8 Kg2 h1B+ Kg1 Rg8 Qg6 Bc6 Re4 Be8 Kh1 Rh8 Bg2 h3 Bg8 h2 Be6 Rg8 Rf7 Bh8 Rg7 Rf8 Ra1 Rg8 Rc1 Rf8 Qd8 Ka7 Qd7 Rg8 Qb5 Rf8 Bgh3 Rg8 Bd5 Rf8 Kg2 h1B+ Kh2 Bf3 Qb1 Bh5 Kh1 Ba6 Ra3 Bf3+ Qg2 Bd1 Qe2 Rg8 Na4 Bd3 b8Q+ Ka6 Q8b5+ Ka7 Ba8 Rh5 Bd8 Bf7 Rf4 Rdd5 Rh7 Bb2 Rg7 Rd4 Bg2 Rg5 Bf6 Ra8 Re4 Be8 Nc5+
5nq1/3np3/2R5/2BRQnR1/q2N2Nq/5bB1/kQN1PK2/r1q1BRN1 b - - 0 1 legal: proof: f4 g5 fxg5 b5 a4 d5 axb5 d4 h4 d3 g4 a6 g6 Nh6 g5 Ng8 cxd3 Bf5 d4 Bg7 d5 Bd4 g7 Bc8 g6 Ba7 b4 Kd7 b6 Nc6 bxa7 Rb8 b5 Rb6 Bh3+ Ke8 Bf5 Rb7 Bd3 Nb8 Bc4 Rb6 Bd3 Rc6 b6 Rf6 b7 Rf5 Bc4 Rg5 Bb5+ axb5 hxg5 Be6 Bb2 Bg4 Bc1 Bc8 a8N Kd7 d4 Kd6 Qd2 h5 Kf2 f5 Rh4 c5 Na3 f4 Qb2 c4 Rh2 c3 Nc7 f3 Nc2 h4 Bd2 h3 Be1 b4 Ne6 Nf6 g8Q b3 g7 Nfd7 g6 Nf8 Rg2 h2 Rg5 Rh4 Qh8 h1Q g8N Nbd7 g7 Rh6 Nf6 Qh4+ Kf1 f2 g8R Qa5 Ng4 Qa4 R8g6 Rh7 Kg2 f1N Rb1 Ng3 Kf2 Qh5 Rf6 Nf5 Rd1 Qe8 Qg7 Rh1 Rh6 Qd8 b8B+ Qc7 Ba7 Bb7 Bb6 Qb8 Rb1 Ne5 Bc5+ Kd7 Bd2 Qaa8 d6 Kc6 d7 Kb5 d8B Ka4 d5 Bc6 d6 Qaa7 d7 Nfg6 Nce3 c2 Bc7 Qg8 d8R Nf8 Nf3 Re1 Rd6 Ned7 Ng1 Bg2 Qbf6 b2 Ne5 Kb3 Rd5 Ka2 Rd1 c1Q Nc2 Qa4 Bc3 Qd2 Bb8 Qd3 Ng4 Qh3 Bg3 b1Q Qd4 Qb6 Qge5 Qb1 Qb4 Bh1 Ned4 Qh4 Rc6 Bf3 Rc1 Rd1 Qbb8 Rd2 Rf1 Rd1 Bd2 Qb2 Be1 Ra1 Qb4 Qc1 Qb2+
NBNkr2n/1P5B/1KR1r1q1/Rn1R1nQ1/4B2Q/n4rR1/4QQpn/8 b - - 0 1 illegal: No possible last move
1q1BQ3/r1qNn3/2npRK2/8/1q1N1N1P/1Q1rrQRN/1Q3Rq1/1k3B2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 g4 d4 cxd4 Bg5 h5 Qc1 g3 Nh3 Bb7 Ra4 Bh6 Ng1 Be4 Bd2 Bg5 hxg5 h4 Ra1 h3 Qd1 h2 Bc1 Bf3 Na3 Bg4 Nb1 Bh3 gxh3 Rh6 Qd2 Rh4 Qd1 Rh8 Kd2 Kf7 Kd3 a5 Ke4 e5 b4 d3 c4 g2 f4 d6 h4 d2 c5 a4 f6 Ke6 c6 a3 g6 a2 f7 Ra6 f8R Qe7 b6 Ra5 c7 Ra7 c8Q+ Rd7 b5 Qh7 b7 Ne7 b6 Ng8 f5+ Ke7 g7 Qh6 f6+ Ke6 f7 Ne7 g8Q Nbc6 b8N Qg7 Qe8 Ra7 Nh3 g1Q b7 Qb6 Rg1 h1Q+ Rg2 Qhg1 Rg3 Qg2+ Qf3 d1R Na3 Rd5 Bg5 Rd3 Re1 a1Q Nb5 Qab2 Nd7 Qc7 Qh7 Qb8 Bf6 Rg8 Qh6 Rh8 Qd2 Rh5 Rg6 Rg5 Re2 Rg3 Rg8 Qh7 Rf2 Qd8 b8Q Qh8 Qf4 Qb6 Qec8 Nd5 Rh6 Qc7 f8N+ Kf7 Kf5 e4 Qbb7 e3 Q3g4 e2 Ng6 e1Q Nd4 Qec3 Qb3 Qb4 Qd2 Rge3 Re8 Qg8 Qf3 Qf8 Re4 Qfd8 Rg4 Qcb8 Kg5 Qdc7 Ne2 Ke6 Rg3 Qc2 Qf8 Qb1 Bd8 Qb2 Qbc2 Nde7 Qe8 Re4 Qa4 Kd5 Ngf4+ Kc4 Nd4 Re2 Re6 Ree3 Qde2 Kc3 Kf6 Qc2 Qd2+ Kb2 Qa3+ Kb1 Qb3+ Qb2 Qdxb2#
R1r3N1/3n2r1/p1N2qQK/1bB1Qp1R/3q2P1/BNb1Nn2/6Q1/1kQ3R1 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b4 g5 hxg5 c6 b6 Qf6 b5 Nh6 b7 Qd6 b6 Qd8 e3 Ng8 Bb5 cxb5 Ke2 Kd7 Kf3 h5 Kf4 f5 d4 b4 g4 a6 g6 b3 d6 Kc6 e6 Kd5 g7 Kc4 d7 h4 d5 b2 e7 h3 Kg5 h2 e4 Nh6 g8N Kb4 e5 Rh7 e6 Nc6 b8Q Nd4 b7 Nb5 d6 Bg7 Nf3 Qf8 e8R Bd4 d8B Qf7 e7 Bc5 d7 Bg1 Qe5 Bd4 b8Q Bc3 Nbd2 b1Q Qb7 Qd3 Nf1 Qd4 Ne3 Qf6+ Kh5 Rg7 Nd2 Rb8 Bb6 Nf7 d8N Bd7 Nb3 Rc8 Ba3+ Ka4 Rg1 Bc6 Ra2 h1Q+ Rh2 Bd7 Bbc5 Qhc6 Qd6 Ne5 Rf8 Qh1 e8Q Bc6 Qg6 Nd7 Rg3 Qe1 Rg1 Qed2 Kh6 Qc1 Ra2 Qe4 Qdb8 Nd4 Rh2 Nf3 Qe5 Qd4 Rh5 Bb5 Nc6 Ra8 Nb8 Nd2 Qg2 Nf3 Nc6 Rd8 Bb2 Rb8 Rc8 Ra8 Rc7 Rc8 Ra7 Qb4 Ba1 Ka3 Bb2+ Ka2 Ba3+ Kb1 Ra8 Qd4 Qxc1#
2qNK1Q1/R3n3/1QRbR3/n1pP2NB/r1k4R/3b2Bn/4N2p/2n1Q1Q1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 d5 a4 b5 axb5 f5 exf5 d4 b6 d3 b7 Kd7 cxd3 Ra7 d4 Ra6 d5 Rb6 axb6 Ke8 Ke2 Kf7 Kf3 c5 Kg4 h5+ Kg5 e5+ f6 e4 d4 e3 g4 e2 f4 e1N f5 h3 d6 h2 d7 h4 d5 h3 Nd2 Rh6 Ne4 Rh4 Ne2 Nc2 Bf4 Ne7 Bg3 Nbc6 b8Q Rh7 b7 Rh6 Ra7 N6b4 Qe5 Na2 b8Q Nc6 Qb6 Qc7 d8N+ Kg8 f7+ Kh7 f6 Bd6 f8R Ba6 f7 Qc8 Re8 Ne3 f8R+ Ne7 Rf6 Kg7 Qdd4 Nc4 Qg1 Bb5 Bg2 Rh8 Bf3 Na5 Qea1 Rg8 Qae1 Nc1 Kh5 Ba6 g5 Bd3 g6 Rh8+ Kg5 Rh4 Re6 Rf4 Rh8 Rh4 Rh6 Rf4 Kh5 Rg4 Ng5 Ra4 Re5 Kf6 Re6+ Kf5 g7 Bf4 Rc6 Bd6 Bf2 Ke5 g8Q Nf5 Kg6 Ne7+ Kf7 Qa6 Nh7 Qc8 Bh5 Ke4 Ke8 Ke5 Q1g5+ Ke4 Rf1 h1N Qg1 h2 Bg3 Nf2 Rf6 Nh3 R1f4+ Ke5 Rh6 Bc4 Rff6+ Ke4 Ng5+ Kd3 Re6 Ba6 Qb8 Kc4 Qc7 Kb3 Rh7 Bd3 Qb6+ Kc4 Bf3 Bc7 Rh4+ Bf4 Bg4 Bd6 Bh5+
Q7/3q2B1/RQ2p3/1B2P1b1/2NNpkRB/QKQ3nB/2r2q1q/2bb3R b - - 0 1 illegal: No possible last move
1k6/n2RKnN1/B2pN3/1b3Q1n/3R4/PQ1bp1B1/2nR1B1R/q1Q1B1n1 b - - 0 1 legal: proof: f4 f5 d4 b5 c4 a5 e4 c5 exf5 g5 dxc5 h5 b4 g4 h4 Bg7 f6 Bh6 f5 Bg5 g3 Qb6 hxg5 Kd8 f7 Kc7 Ba3 Rh6 Bb2 Rd6 Bc1 Rd4 f6 Rf4 gxf4 Ra7 f5 Rb7 Bb2 axb4 Qc1 b3 Qd1 b4 Ba3 Qa5 Bc1 Rb5 cxb5 Kb7 Bf4 Qd8 Bc1 Kc7 Ke2 e5 Ke3 h4 Ke4 h3 Kd5 g3 f8Q e4 c6 g2 a3 h2 f7 b2 f6 b3 g6 Na6 b6+ Kb8 Kd6 Nc7 g7 Na8 c7+ Kb7 Ra2 Nh6 g8R Ng4 Bd2 Nf2 Nh3 g1N Rg4 Nd3 Nf4 Ne5 Nh5 Ne2 Nc3 b1B Be1 b2 Nd5 Nd4 Qb3 Bc2 Ndf4 b1N Ng7 Nd2 Nfe6 N2f3 Bb5 Bd3 Rd2 Nc2 Bf2 e3 Rd4 Bg6 Be2 Bd3 Bf1 Ka6 b7 Ng1 b8B Nb6 Be2 Bb7 c8Q Qe8 Qcc3 Bc6 Qa1 Kb7 Qc1 Qc8 Ke7 Bcb5 Bd6 Qc4 Qc8+ Ka7 f8R Qc3 Rd8 Nf7 Bdg3 Qa1 Qc5 Kb7 Qf5 d6 Rd7+ Kb8 Bf1 Nh6 f7 Nc8+ Kf6 Nh3 f8B Nf7 Be7 Ng1 Bd8 Na7 Ke7 Bc4 Bb6 Bd3 Ba5 Nf3 Rg1 h1N Rg2 Ng1 Bc3 Qa2 Rh2 Qa1 Bh4 Ng3 Bb4 Nh5 Bhg3 Be4 Bd3 Bbc6 Ba6 Bb5 Re2 Bed3 Bbe1 Qc3 Rd2 Qb2 Nc7 Qa1 Nce6
2Kn1q1R/B3RQ2/4nB1B/1R2NbB1/Qn1N2N1/5P2/1p1bp3/2n1q1Nk b - - 0 1 legal: proof: e4 f5 exf5 g5 f4 a5 c4 d5 cxd5 b5 a4 Ra6 b3 b4 Be2 Rb6 Bc4 Rb5 axb5 a4 bxa4 h5 a5 Rh6 Be2 Rh7 Bg4 hxg4 Qe2 Rh3 Qd1 Rf3 gxf3 Qd7 Qa4 Qd6 Qd1 Qd8 Ke2 Kd7 Kd3 Kd6 Kd4 c6 h4 e6 f6 g3 b6 g4 a6 b3 f7 g2 h5 g3 h6 b2 b7 Qe7 a7 Qd8 a8R Ne7 h7 Bh6 f8B Qc7 h8N Qd7 f5 Qe8 f6 Bf4 f7 Qd7 Rh5 Bg5 Ng6 Bf4 Na3 Qc7 Ne5 Na6 b8B Nb4 Ba7 Qd8 Bh6 Qf8 Nc2 c5+ Ke4 c4 d4 c3 Ne3 c2 N3g4 Nec6 Be3 c1N Qa4 Qe7 f8Q Nd8 Qf7 Qf8 Rb8 Bg5 Rb5 Bf4 Bg5 Bd7 Rh8 Bc8 Nd7 e5 Kf5 e4 Bd2 e3 Bh6 Ba6 Nde5 e2 Ra3 Bb7 Rc3 Be3 Rc7 Bc8+ Kf6 Bf5 Re7 Bf2 Bdg5 Be1 Nd7 Kc7 Ke5 Bd2 d6+ Kc6 Nh3 g1Q Bf6 Qe1 Ng1 g2 Bfg5 Be4 Kf6 Nb7 Ke6 Bd3 Nc5 Be4 d7 Bh7 d8B Bf5+ Kf6 Kd6 d5 Bd7 Nb3 Bf5 Ba5 Nd8 Nd4 Nc2 Bc3 Nb4 Rb6+ Kc5 Rb5+ Kc4 d6+ Kd3 Nh3 g1N d7 Qf2 Ke5 Qh4 Kd6 Qe1 Kc7 Nc2 Bh4 Nb4 Ng5 Nh3 Kc8 Nf4 Nh3 Nfe6 Ng1 Na6 Nb3 Nb4 Bcf6 Bg5 Nd4 Bf4 Nh2 Ke3 B4g5 Kf2 Ng4+ Kg2 Rg8 Bd2 Rh8 Nb7+ d8N Kh1 Rb6 Qg7 N8c6 Nbd8 Rb5 Qf8 Nce5
N1kB2r1/1p3rpq/3R3b/1p4NK/2BN4/rP2Q3/bB1N1QR1/2b1BQ2 b - - 0 1 legal: proof: b4 f5 e4 h5 exf5 d5 g4 a6 gxh5 Nf6 c4 Nc6 cxd5 Ne4 Qb3 Na5 bxa5 Nc5 Qc4 Nb3 Qb5+ axb5 axb3 Qd6 Ba3 Qd7 Bc1 Qd8 Ke2 Kd7 Kf3 c5 Kg4 e5 f4 e4 h4 c4 d4 e3 h6 e2 a6 e1B h7 c3 f6 c2 f7 Ba5 a7 Bb6 h5 Rg8 h8N Be7 f8Q Ba3 f5 Qc7 d6 Bb2 f6 Ba3 d5 Qc3 f7 Qc5 h6 Rb8 a8N Bd8 h7 Bb6 Rh6 Qb4+ Bc4 Qd2 Kh5 Qg2 Ra2 Ba5 Nd2 Qe4 Ne2 Bc7 Bb2 c1R Nd4 Qe8 Re6 Kd8 d7 Bg3 Qc5 Be1 Rd6 Qe7 f8Q+ Qe8+ Qf7 Qe4 Qf2 Ra1 Nf7+ Ke7 Ng5 Kd8 h8Q Qh7+ Kg4 Rf8 Qf1 Bg3 Qg8 Bh2 Qe6 Bf4 Qe3 Rf7 Qa7 Qe4 Kh5 Qf5 Bc3 Bc1 Rc2 Ra3 Bb2 Qe4 Qb6+ Ke7 d8B+ Ke8 Qed3 Bf5 Qe3 Bh7 Bc7 Ke7 Qa7 Rg8 Ba5 Bf5 N2f3 Ke8 Be1 Bh7 Nd2 Bf5 Rb6 Kd8 d6 Bh7 d7 Qh1+ Nh3 Bh6 Rd6 Bd3 Qc5 Qe4 Ng5 Qh7 Qcf5 Be4 Q5f2 Bf5 Rc3 Bb1 Rc2 Ba2 Nb6 Kc7 d8B+ Kb8 Na8 Kc8 Nb1 Rf4 Re2 Rf7 Nd2 Kb8 Qff4 Kc8 Rg2 Rff8 Qfg3 Rf7 Qgf2
Bb1N4/3R1Q2/Q1N2b2/pbp1qb2/1P3bp1/Rq6/1k1RR1B1/N3BK1B b - - 0 1 legal: proof: c4 b5 e4 bxc4 f4 a5 d4 d5 exd5 e5 a4 Bh3 d6 Bc8 d5 Ra6 Bd2 Rb6 Bc1 Rb5 axb5 Bh3 Qc2 Be6 Qd1 Bc8 g4 f5 Qe2 g5 Qd1 h5 Kf2 e4 Ke1 Nd7 h3 Ne5 fxe5 f4 h4 Nh6 Kf2 Rg8 Ke1 Nf5 gxf5 g4 Kd2 Be7 Ke1 Rg5 hxg5 Bf8 b4 Kf7 b6 c5 b7 e3 b8R f3 g6+ Kg7 d7 c3 d6 c2 e6 Kf6 g7 Ke5 g8B h4 f6 e2 f7 h3 e7 h2 e8B Qf6 d8R Bb7 d7 Bd5 Ra3 Qe7 Qd3 Qg5 Qa6 Kd4 Rb7 Bb3 Bg2 Ba4 Bd2 Be7 f8Q c1B Bd5 Qh5 Qf7 Bc2 Ra7 Bg6 Ba8 Bf5 Kf2 e1B+ Kf1 Bf2 Be1 Bf4 Rc7 B2g3 Ne2+ Ke5 Nd4 f2 Rg1 h1Q Rb7 Q1h3 Nc6+ Kd6 Rh1 Bf6 Rh2 Qh8 Rb3 Q8h5 Na3 Qh8 Nc2 Q8h5 Ne7+ Ke5 Rf3 Ke4 Nc6 Bb8 Rc7 Bf4 Ra3+ Qf3 Rdc8 Qh8 d8N Qh5 Bh1 Qg5 Rg2 Qb3 Rd7 Qh5 Rd2 Qh2 Rc7 Qh8 Ke2 f1B+ Kf2 Bb5 Rcd7 Bbd6 Re2+ Kd3 Kf1 Qh5 Rd2+ Kc3+ Rge2 Kb2 Rc7 Be3 Ne5 Qh2 Bec6 Beg5 Rd7 Bb8 Bcg2 Be3 Nec6 Qe5 R7d4 Bh6 Rd7 Bf4 Na1+
n1k1BQ2/1pP5/2p4b/8/R1np1QQ1/BR3bpK/2qB2R1/BRNN1r2 b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 e5 dxe5 f5 exf5 Be7 gxh5 Bf8 c3 d6 cxb4 c6 b5 Ra4 b6 Ra8 Bf4 Ra4 Be3 Rg4 Bc1 Rg6 Qe2 Re6 Qd3 Re7 Qd1 Rc7 bxc7 Qh4 Qe2 Qf6 Qd1 Qd8 a4 Kd7 f4 g5 Kf2 d5 Kg3 g4 h4 Nf6 e6+ Ke8 h6 Bd7 e7 Rg8 h5 Rh8 a5 Na6 h7 Bh6 Ba3 Bc8 Ra2 Kd7 e8R Bg7 h6 Nb8 a6 Rf8 h8B Rf7 a7 Bf8 a8R Bg7 h7 Bf8 Ne2 Bh6 Bh3 Rg7 Re3 Qg8 Rb3 Ne8 f6 Rg5 f5 Qg7 f7 Qf6 f8Q Ng7 Ra4 Qa1 f6 Qb2 f7 Rg6 Nc1 Rf6 Nc3 Qc2 Qd4 Ne8 Nd1 Rf5 Qg1 Rf1 Bc3 Nd6 h8B Nc4 Bd2 Qd3+ Kh4 Qc2 Ba1 d4 Qg2 Rf5 Qe4 g3 Kg4 Rf2 Qg7 Rf1 Qf4 Na6 Qg6 Nb4 f8Q Nd5 Rg1 Ndb6 Rg2 Bg5 Rab2 Bh6 Rb1 Na8 Qgg5 Ke6 Qh5 Bd7 Qhg5 Be8 Qg6+ Kd7 Qge4 Bf7 Kh4+ Be6 Bg4 Bf5 Bh5 Bg4 Be8+ Kc8 Qg6 Be2 Kh3 Bf3 Qgg4+
1b2b3/N2QNkN1/1BPp2rN/1q2nB1R/1Qp2p1K/7Q/1pRB4/2b1Q3 b - - 0 1 legal: proof: f4 h5 g4 e5 fxe5 b5 gxh5 a5 b4 axb4 a3 Na6 a4 Nb8 axb5 c5 c4 Nc6 d4 Na7 b6 Nb5 cxb5 c4 Ra5 Ra7 Ra6 Rc7 Ra1 Rc5 dxc5 Rh7 Bh3 Rh6 Bf1 Rh8 Kf2 g5 Kg3 f5 h4 g4 e4 b3 e6 d6 c6 b2 e5 Ne7 h6 Ng6 h7 Be7 h5 Nf4 h6 Nh3 b7 Bg5 b8Q Rf8 h8N Nf4 b6 Nh3 h7 Ba6 e7 Rf6 b7 Bh6 Bd2 f4+ Kh4 g3 Na3 g2 Nf7 Qc8 h8Q+ Bf8 Nh6 Rf7 Ne2 g1B Rc1 Rf6 Ng3 Re6 Rc2 Bd4 Bd3 Rf6 Ngf5 Ng5 Nb5 Re6 Na7 Nf7 Qe1 Rg6 Kh5 Bc5 Bb4 Qd8 Qf6 Bb6 Qfh4 Be3 Rhh2 Bc1 Bd2 Re6 Qhg3 Nh8 Kg5 Ng6 Rh5 Nh8 Kh4 Nf7 Qh3 Rf6 Qc8 Rg6 b8B Bb7 Bc7 Ba6 Qb7 Qb8 Qb3 Qb5 Qb4 Bc8 Bb6 Bd7 Be4 Ng5 Ng4 Kf7 e8N Be7 Neg7 Bd8 e6+ Kf8 e7+ Kf7 Bd3 Bc7 Be4 Bb8 Ngh6+ Kf6 e8Q Nf7 Ne7 Ne5 Qd8 Be8 Bd3 Bc7 Bf5 Bb8 Nhg8+ Kf7 Qc8 Qa4 Qd7 Qb5 Nh6+
bQB2nrk/1bQ3B1/3RBK2/n2Q1b2/NN3RP1/B2q3r/N2Nnb2/6r1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Kf3 Kg7 Kg4 e5 d4 c5 f4 b3 d6 h6 b6 b2 g6 c4 d7 e4 d5 c3 d6 c2 b7 e3 Ra4 e2 Nd2 e1N Ne2 b1B Nc3 Ra7 Na2 Be7 f6+ Kf8 Kf5 h5 g4 h4 f7 Kg7 f8N h3 Ba3 h2 Ba6 Rh7 Ne6+ Kh8 Nc5 Rh6 g7+ Kh7 Re4 c1R Na4 Nc6 b8Q Nf6 g8B+ Kg7 Be6 Bb7 Qc2 Ba8 Bc8 Ng2 Rd1 Na5 Qcc7 h1B Kg5 Bf8 f5 Kh8 Rf4 Rh3 Kg6 Bg7 Kf7 Nh7 f6 Rd3 Kg6 Nf8+ Kf5 Bb7 f7 Bh6 Ke5 Ra8 Kf5 Rh3+ Ke5 Qe8 d8N Qb5+ Kf6 Bf5 d7 Qd3 Nc6 Rb1 d8Q Bg7+ Ke7 Bd4 Qd5 Bf2 Ncb4 Rc1 Kf6 Rb1 Rd4 Nf4 Rc4 Ne2 Rf4 Ng6 f8B Ra1 Bh6 Nf8 Rc1 Bf3 Rc6 Rg1 Qa7 Rb8 Rd6 Ba8 Bcd7 Re8 Qab8 Bh1 Bc8 Bhe4 Qd4 Beb7 Qd5 Ng6 Qd8 Rg8 Qdc7 Nf8 Bg7+
q3bB2/B4k1r/1KNbn2R/1R6/3rqr1N/n1r1R3/P2rN1B1/1NQ1QR2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 Kd2 e5 Kd3 g5 Kc4 e4 Kb5 e3 f4 e2 h4 e1Q c6 b3 f6 b2 d6 g4 h6 g3 h7 g2 d7+ Kf7 h5 Ra3 f5 Ne7 h6 Rc3 c7 Nec6 Rh3 Na6 Be3 Na5 Kb6 Nc5 Ne2 g1R Bg2 Rf1 Bf2 Ne6 Re3 Qe8 Qd2 Bd6 d8N+ Kf8 f7 Bd7 Bg1 Rf4 Nc6 Qa8 c8Q+ Be8 Qd1 Qh4 Qe1 Rd4 Bf2 Qe4 Bg1 Rg8 h8N Rg4 h7 Rf4 Bf2 Kg7 f8R Nc4+ Kb5 Na3+ Kb6 Rd2 Ng6 Rd4 Rg8+ Kf7 h8R Rd2 f6 Rd4 Bg1 Rd2 Rh5 Rd4 Nd2 b1R+ Rb5 Rd1 Nb1 R1d2 Rh8 Qf3 Qg3 Rd5 Nh4 R2d3 Nd2 Qf1 Re4 Qb1 Rh6 Rb3 Ncd4 Kf8 f7 Rf2 Rb4 Rf4 Bf2 Qc2 Rf1 Qb1 Qc1 Rbc3 Nc6 Qc2 Bc5 R5d4 Qge1 Kg7 Nb1 Rd2 f8B+ Kg8 Re3 Qf5 Na7 Qe4 Ka5 b5 Rh8+ Kf7 Rb3 Rd5 Bb6 Rh5 Rb2 b4+ Bc5 Rd4 Nd2 b3 Rb1 b2 Ka6 Qb8 Nc6 Qa8+ Ba7 Rh6 Rg8 Rh7 Rg6 Bd7 Rh6 Be8 Qc2 Nc7+ Kb6 Ne6 Rc1 b1R+ Qb2 Rcd3 Rc5 Rd1 Rb5 Rc3 Nb1 R1d2 Qbc1
5N2/rN4r1/BN1b1kR1/1q1Qqb1B/3BBQb1/3q1nKP/4Q1nN/2b2R2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Ke7 d4 f5 e4 g5 b6 c5 e5 f3 h6 c4 d6+ Ke6 h3 c3 d7 g4 b7 f4 d5+ Ke7 a6 c2 d6+ Ke6 h7 Qb6+ Be3 c1B d8N+ Kf5 a7 Qc6 e6 Qb5 d7 Nf6 e7 Rg8 h8N Nd5 e8B Kf6 Ra5 Bd6 Ng6 Nc6 b8Q Ne5 Nf8 Rg7 Bd4 Ne3 Na3 Ng2 Nb7 Qd3 Be2 Qb5 Bh5 g3+ Kf1 f2 Nf3 Qd3 Nh2 Qb5 Bb6 Nf3 Nc4 Qe5 Be3 Qb5 Nb6 Qe5 Ba6 Qb5+ Qd3 Qe5 Ke2 f1B+ Kd1 Qb5 Bd4+ Qe5 Qc4 Bd3 Rf1 Bf5 d8Q+ Re7 Qe8 Rg7 Qec6 Bg4 Qe4 Bcf5 Ke2 Nd2+ Kd3 f3 Qd5 f2 Qc7 Nf3 Ke2 Ne3 Qf4 g2 Qc2 g1Q Qd3 Qg3 Qd1 Rd8 a8B Ng2+ Qde4 Rb8 Qb3 Ng5+ Qbf3 Bb2 Rc5 Bc1 Nd8 Rbb7 Re1 Rbf7 Kf1 Ra7 Qb3 Qf3 Bd5 Qe3 Nb7 Nf3 Qed3 Qd2 Be4 Qa5 Qg8 Qb5 Ke2 Ke7 Qb3 Be6 Rd5 Qf6 Rg5 Qfe5 Qd5 Bef5 Rh1 Ngh4 Kf1 Kf6 Rg1 Ng6 Kg2 f1Q+ Kg3 Ngh4 Q3c4 Qd1 Rf1 Ng2 Qe2 Qdd3 Rg6+
B1r2N2/1qRQK1nn/2RQ1Q1b/3P3R/2BB3B/b1nn1kb1/q3N3/5r1R b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 d6 Kf7 Rh2 e5 Ke2 h5 Kf3 a5 Ke4 c5 Kd5 c4 d4 h4 b4 c3 f6 Kg6 Ke6 c2 b6 e4 b5 f3 d7 h3 b7 e3 b6 e2 f7 e1N Na3 f2 Nc4 a4 Ne2 a3 Bb2 c1B Ne5+ Kh7 g6+ Kh6 g5+ Kh5 g7 a2 g6 Nf6 g8B Ne4 Bg2 f1N g7 Nfg3 Ng6 Kg4 Rb1 Be7 f8Q a1B Qa4 Qc7 d8B Qc2 Qb5 Nd7 b8Q Bh4 b7 Ndf6 Qd7 Nd3 Qff7 Rh6 Nf8 Nh7+ Bf6 Rh5 Ke7+ Rf5 Qg6+ Bcg5 Bc4 Nh5 g8R Bg3 Qbd6 Ng7 b8R Ne1 Rb6 Nd3 Ne6 Qb3 Rf1 Qa2 Rc8 Rf3 Bc3 Bb2 Rc7 Rc8 Nf8+ Rf5 Qf7 Bh6 Bg5 Ba3 Qf6 Nd2 Ba8 Nb1 Bcd2 Nc3 Bde3 Ne6 Rfb1 Rf4 R1b5 Rf1 Rf5 Ng7 Bh4 Rf2 Rh5+ Rf5 Rg2 h2 Rg1 h1Q Ra1 Qb7 d5 Nc1 Bd4 Nd3 Qe8 Rf4 Rh1 Rf3 Rc6 Rf1 Qe6+ Kf3 Q8d7 Nc5 Qg6 Nd3 Qf6+
3nQ3/P1n1rrR1/2Bb1Q2/q1Q2nbK/R1B1q3/N2B4/r1Q2RN1/B4n1k b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 Ke2 Kd7 Kf3 Kd6 a4 Ke5 d3 b5 f6 c5 f7 h5 d6 b3 d7 h4 g7 c4 g6 b2 g5 b4 Kg4 c3 d4+ Ke4 d5 e5 d6 c2 a5 h3 a6 h2 Be2 b3 Nf3 Qa5 d8Q Nc6 d7 Nge7 g8B Nd5 g7 Nc7 g6 Bd6 f8Q Rh7 Rf1 h1N Qde8 Nd8 Ne1 Ng3 Bgc4 Nf5 g8B Rf7 Na3 b1Q g7 b2 Ng2 Ra7 Bh6 c1B Kh5 Bg5 Rf2 Qc2 Bh7 b1N g8R Nd2 Bg7 Nf1 Bb5 Qb1 Bec4 Qd3 Bc6+ Qdd5 Re2+ Kf3 Qc2 e4 Rf2+ Kg3 Bh8 Kh2 Rg7 e3 Bg6 e2 Qfe7 Nde6 d8Q e1R Qf6 Re4 Qde7 Kh1 Ra2 Re2 Ra1 Rb7 a7 Nd8 Qe3 Rb2 Qc5 Ra2 Bh7 Ree7 Bg6 Nd4 Bgd3 Qf5 Rb1 Qe5 Rb4 Qe4 Ra4 Nf5 Qa1 Kg1 Rh7 Nb7 Bf6 Kh1 Rg7 Nd8 Qae5 Qae1 Qe6 Qd2 Ba1 Qa5 Qf6
QNrRRr2/3n1r2/Nqb3K1/rR4N1/3r2Nr/B7/1RPBQ1k1/1Q1b2n1 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 f5 g4 e6 gxf5 Qf6 e4 Ke7 f4 Qg6 Be2 Qe8 Bf3 Qd8 Bg4 hxg4 e5 Ke8 Kf2 Be7 Ke1 Bf6 exf6 Rh7 Nd2 Rh5 Nb1 Rh8 Ke2 Kf7 Kd3 g5 Ke4 a5 b4 e5 h4 g3 c6 g2 b6 a4 b7 g4 h5 g3 b5 a3 h6 d6 h7 a2 b6 Ne7 c7 Rf8 h8Q Nd5 Nc3 Nd7 b8N Bb7 c8Q Bc6 b7 Qb6 Rb1 a1R Nh3 g1R Qe2 g2 Nd1 Rf1 Ne3 g1R Ng4 R1a5 Na6 Rf3 b8N Rd1 Rh2 Rf2 Bd2 Nc3+ Kd3 d5 Qb7 d4 Rb2 Rh1 Rg2 Rc8 Rg1 Ra7 Rgb1 Rff1 Rb5 Rd1 R1b2 e4+ Kc4 e3 Kd3 Rf8 Qa8 Rc7 Qh6 Rcc8 Ng5+ Kg8 Qh5 Rh4 f7+ Kg7 Qe1 e2 Qf1 Rfd8 f8R e1R Re8 Re7 Qe1 Rf7 Qe2 Nd5 Ke4 Rf1 Qe1 d3 Qb1 Rf8 Ne5 Rf2 Qe2 Kh6 f6 Nc3+ Kf5 Rf1 Ng4+ Kh5 f7 Rf3 Qe3 Ne2 Qe4 Ng1 Qe2 Ne5 Kf6 Rd4 f5 Nd7+ Kg7 Rf1 f6 Rf5 Be3 d2 Kh7 d1B Bd2 Rg8 f8B Rf1 Ba3 Rf8 f7 Rf6 Ne3+ Rf3 Ng2 Kg4+ Kg6 Kg3 Ne3 Rf2 Ng4 Kg2 Rd8 Re8 f8R Re7 Qd3 Ref7 Rfe8 Rf8 Qe3 R2f7 Qe2+
4q1q1/1PN4Q/2b1B1Rn/1B2b2Q/KQn2q2/4N1N1/3nrR1N/1B1n1Qnk b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 f4 f5 exf5 g5 b3 Bd7 f6 Na6 f5 Bc8 Bb2 Nb8 h4 a5 g4 Bh6 h5 Bg7 Be5 Bf8 Bf4 gxf4 g5 Nh6 Rh4 Rg8 Rh2 Rg6 hxg6 Ng8 Rh1 Bg7 Nf3 Qd7 Rh6 Na6 Rh1 Bb7 Rg1 Kd8 Bg2 Nh6 Ra4 Rc8 Ra2 Nb8 Ra1 Qd6 Qc1 Kd7 Qb2 Rh8 Qc1 Bc8 Rh1 Ng8 Ng1 Bf8 Qd1 Ke8 Bf1 Qd8 d4 Kd7 Kd2 Kd6 Kc3 e5 b4 c5 Kb3 h5 f7 c4+ Ka4 c3 g7 e4 g6 f3 b6 h4 b7 f2 f6 c2 b5 c1N b6 e3 Qh5 e2 Rh2 e1Q Ne2 h3 Na3 Nb3 Ng3 Qde8+ Bb5 f1N Rf2 h2 Nc2 h1N Ne3 Nd7 b8N Rh7 b7 Qd2 Nc6 Nc1 Ne5 Nh6 g8B Ne2 g7 Ng1 Nf3 Ne5 Nh2 Bd7 Rc1 Rh8 Bh7 Bc6 g8B Nc4 Bb1 Bg7 f8N Rh7 f7 Be5 Ne6 Rg7 f8Q+ Re7 Re1 Qc1 Nc7 Nfd2 Ree2 Qf1 Rg2 Qf4 Be6 Nf2 Qg7 Qg8 Qh7 Nd1 Ref2 Nf1 Kb3 a4+ Kb4 a3 Ka4 a2 Bd3 Rf7 Bb1 Ke7 d6+ Kf6 d7 Nfd2 d8Q+ Re7 Qd6 a1Q+ Qa3 Qe8 d5 Qa2 Bg8 Re6 d6 Re7 d7 Re6 Q5f7+ Kg5 d8Q+ Re7 Qa8 Kh4 Qa5 Kh3 Qf6 Qc2+ Qb3 Qcg6 Qbb4 Qgg4 Bf7 Qgg8 Be6+ Qfg4 Rf4 Rf7 Nh1 Ba1 Rf5 Qd4 Rg6 Rf8 Ng3 Qe4 Nc2 Kg2 Rf4 Qe5 Qf5 Qf6 Qb6 Be5 Qh5 Qh4 Rf1 Rf4 Rf3 Re4 Rf5 Re2 Qf2+ Kh3 Qf4 Kg2 Rf8 Nh3 Ne3+ Kg1 Ne4+ Kh1 Qf1+ Ng1 Rf2 Qf4 Ng3+
1B1r1RR1/1NQq4/1r1BN1Kn/P2k1n2/2r2r2/6bB/R2nB1R1/1r2Q1Nr b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 d4 c5 a4 h5 f6 b5 Kf5 e4 a5 c4 f7 e3 g7 b3 g6 b2 g5 c3 Rh2 c2 Qe1 h4 Be2 b4 Nc3 b1R Ne4+ Kd7 d6 Kc6 d7 h3 Nc5 b3 d5+ Kd6 Ra2 b2 Ne6 Rh6 Rg2 h2 Bd2 Qe7 d8N h1R Bc3 c1R Nb7+ Kd7 d6 Kc6 d7 Kd5 d8B Qd7 Be5 Nc6 Bdc7 Rc4 Bb8 Bd6 f8R R1h4 Bh2 Bg3 Bd6 Rd8 Bb8 Nf6 g8Q Ng4 g7 Rg6 Qf7 Rgh6 g6 Ne7+ Kg5 Nf5 g8R Rf4 Ba6 e2 g7 Rf6 Bd3 Ngh6 Qe7 Rc4 Qf7 Rhf4 Qe7 Qc8 Qc7 Qd7 Kh5 Rd1 Kg5 b1N Kh5 Nd2 Kg5 Nd6 Bf5 Rb1 Bh3 Ndf5 Kh5 Rf7 Kg6 Rb6 Rh8 Rh4 g8B Rh7 Bf7 Rhf4 Rhg8 Rh8 Kg5 Rh7 Bh5 Rh8 Kg6 Rh7 Qf1 e1R Be2 Reb1 Qe1 Rf1 Nf3 Rh1 Ng1 Rf7 Rc2 Ne3 Rb2 Rff4 Ra2 Nef5 Rf2 Rfe4 Bd1 Bh4 Bd6 Rf4 Rg2 Bg3 Be2
Q1Q2R2/br2kN2/b2nN3/1bP1BrQ1/1r2n3/1r5B/1R1RBB2/Q2Kb1n1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Qc7 g5 Qb6 g7 Qg6 hxg6 Nc6 Rh3 Nb8 Rh6 Ba6 Rh1 Bc8 b4 d5 c4 a5 b6 h5 b7 e5 f6 a4 f7+ Ke7 b5 h4 b6 d3 Nh3 e4 Ra2 d4 Rb2 a3 Rf2 e3 Rfh2 a2 Bd2 a1R Qc2 e2 Qc3 Rh5 Nf4 h3 Be3 R8a7 Bf2 Nh6 g8Q Nc6 b8Q Nf5 g7 R1a3 b7 Ne5 g6 Nd6 Qa1 Rb3 Qa8 Rf5 b8B Ba6 Na3 Rab7 Ne6 R7b4 Kd2 e1B+ Kd1 d2 Be2 Nf3 Nb5 Ng1 Rg2 h2 Qh8 Rg3 g8B Rgb3 Qh6 Bg7 f8R Be5 g7 Bf4 Ng5 Be3 Nc7 Bb5 Nf7 Ba6 Kc2 d1N Ne6 Nc3 Qg6 Nce4 Kd1 d3 Qg5+ Kd7 Bh7 d2 g8Q Ba7 c5 Rb7 Bg6 R3b4 Bgh5 Rb3 Bhg4 R3b4 Kc2 d1R Bh3 Rd3 Bc7 Rdb3 Kd1 Nf3 Rhg1 h1B Rh2 Bb5 Rgg2 Ng1 Bb8 Nc4 Be5 Ncd6 Rg3 Bg2 Rd3 Bf1 Rd2 Ba6 Qg2 Ke7 Q8g5+ Nf6 Qc6 Bb5 Qcc8 Ba6 Beg4 Bfb5 Be2 Re4 Rb2 Ra4 Bef1 Bd3 Bfg3 Bdb5 Rhd2 Raf4 Bf2 Rfb4 Qg6 Nfe4 Be2 Rc4 Qg3 Rcb4 Qg5+
Kb1N3b/3b1PN1/2n1NQ2/4n1bb/k1bB1Qqb/4B2B/4R2B/1QNR2n1 b - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 g5 h4 gxh4 Qb3 f4 Qd1 Ra7 f3 h5 Bd3 e5 Be2 Ra6 Bf1 Rf6 Ne2 Rf5 exf5 e4 Ng1 e3 Rh3 Rh6 Rh2 Re6 Rh1 Re4 fxe4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Kf3 c5 b4 h3 g4 e2 d4 e1B g5 h2 f6 h4 b6 h3 f7 c4 b5 a4 d6 c3 g6 a3 b7 c2 g7 a2 e5 Ba5 Ke4 f3 Kd5 f2 b6 Qf6 e6+ Kd8 e7+ Kd7 e8N Qd8 Be3 c1B Nc3 Qe7 Na4 Be1 Ne2 Bcd2 Qb1 Nc6 b8Q Qd8 b7 Qh4 Nc1 Nh6 g8Q Ng4 Qh8 Nge5 Qf6 Qg4 Ng7 Be7 Rg1 h1B+ Rg2 h2 Kc5 Ba5 d5 Bc7 Kb5 Bd2 Ka6 Bed8 Bd4 Bg5 Be3 Nb4+ Ka7 Nbc6+ Ka8 Be7 Bd3 f1B Re2 Bf3 Bc4 h1N Nc5+ Kd8 d7 Nf2 Bd3 Nh3 Bf5 Ng1 Be6 Qg3 Bh3 Bh5 Bd4 Qg4 Be3 Ba5 Qbd6 Bc7 b8B Bh4 Qf4 Beg5 Qdg6 Ke7 d8N Bd7 Nce6 Kd6 Bba7 Bb8 Qgf6 Nf3 Bad4 Ng1 Rb2 Bc4 Re2 Bb3 Nc5+ Kc7 d6+ Kb6 Nce6+ Kb5 Qf1 Ka4 Q1f4 Be8 d7 Bc4 Nb7 Na7 d8B Bd7 Bc7 Nac6 Qf1 Nd3 Bh2 Nde5 Nbd8 Qf3 Qbf5 Qg4 Rb1 a1B Q5f4 Bc3 Nd3 Bb4 Rd1 Be7 Nc1 Bf8 Nf5 Bg7 Qe1 Bh8 Nfg7 Ngf3 Qh1 Ng1 Qhe4 Bd6 Qh7 Bb8 Qb1
nbq3R1/N3n1Q1/k5bK/1Bn3RR/2r1BQ2/q5R1/rPQNq1Bp/6Q1 b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 g5 a4 d5 axb5 c5 d4 Qd6 h4 Be6 hxg5 Bc8 Be3 Bh6 cxd5 Qd7 d6 Qd8 d5 Bf8 Bd4 cxd4 Ke2 Kd7 Kf3 a5 Kf4 h5 g4 h4 b6 e6 b7 d3 g6 h3 g7 a4 g5 d2 g6 a3 f6 a2 Kg5 e5 f4 e4 f5 e3 Bb5+ Nc6 b8R e2 Nf3 e1Q Nd4 Ba6 Qc2 d1N Nd2 Nh6 g8B Qee7 g7 Ra7 Bh7 Qe2 g8B Qa5 f7 Qa3 f6 Bb7 Be4 Nc3 Rag1 a1Q Rg3 Qc1 Kg6 Be7 f8Q Nf7 Qg7 Ng5 f7 Na4 f8Q Ne6 Qf4 Nac5 Bh7 Rd8 Bg2 Nc7 Kh6 Rc8 Bhe4 Na8 Rh2 Kd8 d7 Bd6 Rh1 Kc7 d8R+ Kb6 Rg8 Bc7 d6 Ne7 d7 h2 d8Q Ka5 Rg1 Bc6 Qdd6 Be8 Qdg6 Bd6 Rb6 Bb8 Rf6 Bf7 Nc6+ Kb6 Qgg5 Bg6 Rf5 Ra5 Na7 Rc7 Be8 Ka6 Qgg4 Ra4 Rh5 Rc4 Bd7 Rb7 Qgg5 Rb5 Qgg4 Ra5 Bb5+ Kb6 Bh3 Qc3 Qa4 Ne6 Rd3 Rc5 Qc4 Ra2 Rdd5 Qa3 Rdg5 Qcc3 Bf1 Qh3 Qcc3 Rc4 Qc2 Nc5 Qgg3 Qe6 Qe1 Qc8 R1g3 Ka5 Bfg2 Kb6 Qg1 Ka5 Be8 Ka6 Bb5+
BR1q1B1B/1r4n1/7R/1qqQ2n1/pR1B1Qb1/1P1Nb1K1/2nN1R1r/N6k b - - 0 1 legal: proof: e4 b5 h4 f5 exf5 c5 c3 d5 b3 c4 bxc4 g5 cxd5 gxh4 Na3 b4 Nb1 b3 axb3 Bd7 Rh2 Be6 Rh1 Bc8 g4 Kf7 f4 Kf6 Kf2 h5 d4 a5 g5+ Kg7 d6 e5 d7 e4 f6+ Kg6 f7 Kf5 d5 h3 d6 h4 g6 h2 g7 h3 c4 e3+ Kg3 Ke4 f5 e2 f6 e1N c5 a4 c6 Qe7 d8N Be6 c7 Ra5 c8R Nc6 d7 Nd4 Na3 Re5 Nb7 Rb5 d8B Ng2 Nc2 Qc5 Bb2 Nf3 Rb8 Nh6 g8R Ng5 Bb6 Ne1 Ra2 Bg4 Na1 Nc2 Nf3 Be7 f8Q Rb4 Rg1 h1Q f7 h2 Bg2 Qb5 Rg7 Bc5 Rg6 Be3 B6d4 Qc5 Re1 Qf1 Rf6 h1Q Nd2+ Kd3 Bc6 Qhd5 Rf4 Qe2 Rh1 Qd8 Qd6 Rb6 f8B Qf1 Qc1 Ke2 Qd5 Rh7 Re4 Qf5 Rh4 Qb5 Nc5 Rbb7 Nd3 Qe5+ Kg2 Nf5 Rh6 Ng7 Bbc3 Qee7 Kg3 Qec5 Rf4 Rf7 Ba8 Rb7 Rd6 Rh2 Rh6 Ne8 Bh8 Ng7 Bd4 Bh3 Nf3 Bg4 Qd2+ Kf1 Qc1+ Ne1 Nd2+ Kg1 Rc2 Qcd6 Rc4 Qdc5 Rf3 Kh1 Rb4 Qcc8 Qc7 Nc2 Qf4 Qcc5 Rf2+
2Qbr3/4Q1bB/R2p4/1R1BNB1P/6n1/N1QQ1n1K/1b2q1B1/1qr1Rr1k b - - 0 1 illegal: No possible last move
r1n3R1/q3BpN1/1nRQ3K/3N1R2/kn1Q4/1Pb1B3/bb1RrB2/2q1NB2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kf3 d5 Kf4 Kd7 b4 d3 h4 a4 e4 d4 b6 Kc6 b5+ Kc5 e6 Kb4 h6 g6 e7 d2 Kg5 a3 h5 a2 b7 d3 b6 Qc7 e8R Qd6 h7 Bf5 e5 Bg4 h6 Qc7 e6 Bf5 e7 Ka4 Rh2 Bg7 Nf3 Bc3 Rc8 Na6 b8Q Be6 e8N Ne7 b7 Nb4 Ne1 Qb6 Ng7 Re8 Rc6 Nc8 h8B Bc4 h7 Re2 Kh6 g5 Rh5 g4 Qd6 g3 b8B g2 Rf5 g1Q Ba7 Qb8 Bf2 Qb7 Bh4 Qga7 Be7 Bb2 Na3 Bd5 Nb5 Be6 Rb1 a1B Nc7 Ba2 Nd5 Bc3 Rb3 Qb5 Rb1 Bab2 Ra1 Qc4 Rb1 Qb3 Ra1 Re5 Qg4 d1Q Qd4 Re2 Be3 Qd2 Rd1 Qc1 Rd2 Rg2 Re2 d2 Bf2 d1N+ Rd2 Ne3 Q4c5 Nb6 Bg3 Nc8 Ne8 Bb1 Bd4 Ba1 h8R Nc4 Be3 N4b6 Rg8 Re2 Ng7 Bab2 Qd4 Ba2 Bgh4 Ka5 Bhf2 Ka4 cxb3+
2n3kQ/1bpNR1N1/2n1r1Q1/P7/1Q2r1n1/1qR1Rn2/5RnQ/KB1b2BN b - - 0 1 legal: proof: g4 a5 c4 f5 e4 g5 exf5 d5 cxd5 e6 h4 Bc5 hxg5 Bb6 f4 Ne7 b4 axb4 f6 Ra5 g6 Ng8 g5 Ra8 f5 Bc5 Bd3 Bf8 Bf1 Bg7 fxg7 Qe7 Qb3 Qf6 Qd1 Qd8 d4 h5 Kd2 b5 Kc2 e5 Kb2 b3 a4 h4 a5 b4 f6 h3 f7+ Ke7 f8Q+ Kd7 d6 Ke6 d7 e4 d5+ Ke5 d6 Ke6 Ra2 e3 Qh5 h2 Nf3 e2 Be3 e1N Bd3 Ne7 g8R Na6 g7 Nd5 g6 Qg5 d8Q Ne7 d7 Qg4 Nbd2 Ng2 Ka1 Rh6 Re1 h1N Ne5 Nb8 Bg1 Nf2 Ne4 Bb7 Qh2 Qf3 Ng3 Nbc6 Nh1 Qg3 Ra3 Ng4 Bc2 Qd3 Re3 Qb5 Rh8 Qc4 g8R b2+ Kb1 Qb5 g7 Qa4 Ka2 b1N Rh7 b3+ Ka1 Nd2 Qde8 Rf6 Qg6 Re8 d8Q Nc8 Qb4 Re7 Rf8 Re8 g8N b2+ Ka2 b1B+ Ka1 Ba2 Ne7 Bb3 Bb1 Bd1 Nf5 Qc2 Rac3 Qb3 Rff7 Re7 Qh8 Re8 Rd7 Nf3 Rd2 Re7 Rf2 Re8 Rd7 Re7 Qge8 Rh6 Ng7+ Kf6 Nc4 Re4 Nb6 Rg6 Re7 Rh6 Qeh5 Rg6 Re8 Kf7 Qg5 Rge6 Nd7 Rd4 Q8h3 Rc4 Re7+ Kg8 Qg6 Rce4 Qh8#
RRB2R2/rnp1qP2/B1r4b/2QR1K2/B7/Qn3nN1/3k3b/N1nn1B1Q b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 g4 axb5 g3 c4 Bc5 b6 Na6 b5 Nh6 b7 Ng8 hxg3 Be7 g4 Bf8 g5 Nb8 e4 f6 e6 d6 e5 Nh6 b6 Ng8 e7 Kf7 e6+ Kg6 Bf4 Bd7 Be5 Bb5 cxb5 fxe5 Ke2 Kf5 Ke3 h5 e8Q a5 f4 e4 e7 a4 g4+ Ke6 f5+ Ke5 f6 d5 g6 h4 g5 h3 g7 h2 g6 a3 Nd2 a2 Ne2 Ra7 Qc6 Rh6 e8B Qe7 Ng3 Na6 b8Q Nc5 b7 Nb3 Rg1 h1N b6 Nf2 Qa8 Nd3 b8R Ndc1 b7 Nc5 Nb3 d4+ Kd2 d3 Ke3 d2 Qb5 Kd5 Kf4 e3 Kf5 e2 Qb4 e1N Ba4 Qe2 Qc3 Bd6 Rf8 Qe7 b8R+ Nb7 Rh1 Be5 Rh5 Nf3 Ba6 Bf4 Qh1 d1N Bf1 Qe2 Qe3 Kc4 Qc5+ Kd3 Rg5 Ra6 Qaa7 Be3 Qa3 Ra5+ Q7c5 Ra7 f7 Nf6 g8B Bf4 g7 Ne4 Bh7 Rc6 g8B Ned2 Bg6 Bd6 B8h7 Be5 Bh5 Bg7 Bg4 Bh6 Rb1 a1B Ra8 Bd4 Na1+ Ndb3 Bgh3 Kd2 Bg6 Qe1 Ba6 Nd8 Bhf1 Qe7 Bh5 Bg1 Bg4 Bh2 Bgh3 Na5 Rbb8 Nab3 Kf4 Na2 Bhc8 Nb7 Kg4 Nac1 Re5 Rb6 Kf5 Rc6 Rd5+
Q7/1R1nQ1Q1/K3b1B1/1N1b2pr/n4n1q/rB6/Rb2PR1R/1QNkb2N b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 Nh6 c4 Ke7 cxd5 Ke8 Ba3 Qf6 axb5 Qd6 b6 Ng8 b5 Qd8 Bb4 axb4 h4 Kd7 d4 g5 Kd2 c5 Kd3 f5 Kc4 b3 b7 b2 e6+ Kd6 b6 f4 Kb5 f3 h6 f2 h7 c4 h5 c3 h6 c2 e7 c1B e8B Be3 Bg2 f1N Bg6 Ra3 Nh3 Bg4 Ra2 Bf2 Nd2 b1B Rh2 Re3 Nb3 Ne7 Nc1 Bh4 Nf2 Na6 b8N Nc6 b7 Qe8 Nh1 Nc5 Na6 Qd8 b8R Be7 Nc7 Be4 Rb7 Na4 Ka6 Bc8 Bh3 Rg3 Be6 Ne3 Rf2 Ne5 Qd3 Bg2 Qb1 Bf6 Bef7 Nd7 Nb5+ Ke7 Be6 Bf3 Bef7 Ng2 Bg8 Be5 d6+ Kf6 d5 Bb2 B8f7 Ke5 Be6 Nf8 d7 Kf4 d6 Ke3 Bc4 Qe7 d8Q Kd2 d7 Qb4 Qe8 Kd1 d8Q+ Bd5 Qde7 Nf4 Q8f7 Nd7 Qg7 Rd8 h8Q Ra3 h7 Bg3 Rh2 Be1 Rf2 Re8 Qhg8 Rf8 h8R Rf7 Qgf6 Rh7 Qfg7 Rh5 Qgd8 Nf6 Qdf8 Bce6 Qa8 Nd7 Rf8 Qb3 Rh2 Qh3 Rf6 Qh4 Rf7 Nd3 Rff2 Nf4 Bb3+
k3r3/PnB4B/Q3pR1n/2rN3N/B1Q2b2/1r2RKRb/QR3n1B/2q2r2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 Ke2 Kd7 f4 Kc7 h4 g5 a4 b5 c6 g4 h6 e6 f6 b3 a5 b2 h5 b4 a6 g3 a7 b3 d6+ Kb6 h7 g2 d7 Bc5 f5 Qf8 d8B+ Kb5 c7 Kb6 f7 Kb7 f6 Qe8 f8Q Bd4 h6 Bf2 f7 Bh4 Ra2 Na6 Qfd6 Bg3 f8R Bf2 Q1d5+ Qc6 Nc3 b1N Nh3 g1R Rf6 b2 Kf3 Bd4 Bf4 Bf2 Bd3 Bd4 Bh2 Bb6 Nf4 Be3 Nh5 Nc5 Bf5 Rd1 Re1 Bf4 Re3 Bd7 Qe4 Rc8 Nd5 Nc3 Qc4 b1R Rb2+ Ka8 Bd3 N3e4 Bc2 Qa4 Qda6 Nf2 Bd3 Qa1 Be4 Rb8 c8B Rb5 Bc7 Bc6 Bd7 Rf1 Bd3 Ra5 Be8 Bb7 Ba4 Bc6 Be4 Nb7 Qa2 Rc5 Bec2 Ne7 Bd3 Re8 h8Q Nf5 h7 Nh6 Bg6 Rb8 Qc8 Bb5 h8R Be2+ Kg2 Bg4 Bh7 Bf5 Kf3 Bh3 Qd8 Rc8 Rg8 Rb8 Qd7 Re8 Q2c4 Qa3 Rg3 Qc3 Qa2 Qc2 Qdb5 Qc1 Rb4 Rb3 Qc4 Rc3 Rb1 Rb3 Rb2
2b3N1/1k2qQnK/1b1Q3b/1bP5/Rr1RB2n/N3N2r/2p1B1NB/B1R4q b - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 a4 f5 exf5 g5 axb5 gxh4 c4 Qb6 cxd5 c4 Ra2 Kf7 Ra1 Qc5 bxc5 Ke8 Ke2 Kd7 Kf3 Kc7 Kf4 h5 Kg5 e5 Kg6 a5 f4 c3 d4 c2 g4 e4 d6+ Kb7 f6 h3 d5 e3 d7 e2 d8N+ Kc7 g5 e1Q f5 h2 b6+ Kd7 d6 a4 b7 h4 f7 a3 f6 a2 Ne6 Kc6 d7 h3 d8R Qh4 Nc7 Nh6 Nd5 Qg4 Bb2 Rh7 Be2 Qg3 Ne3 Ra3 Rd4 Bd6 f8N Nd7 b8B Kb7 f7 Bc7 Nf3 Rb3 Ne1 Qh4 Na3 Bb6 N1g2 Nf6 Nd7 Nh5 f8Q Ng7 Nf6 Nhf5 Ng8 Rb4 Rg1 h1Q Bh2 Qe4 Qf7+ Qe7 Rc1 Rh8 Ba1 Rh5 Rf1 Rh8 Rff4 Rh7 Bg3 h2 Rfe4 Rh3 Rh4 Qe1 Kh7 h1B g6 Qg1 Bh2 Qe1 Nf4 Bc6 Nfg2 Bb5 Qd3 Qh1 Qd2 Rb1 Ra4 Rb4 Qd6 Nh5 Rd4 Nh4 Bc3 a1B g7 Bb2 Nac4 Ba3 Ba1 Bb2 Na3 Bc3 Nf6 Bd2 g8B Ng7 Qf8 Bc6 Bd5 Qc7 Ng8 Qe7 Rd1 Bc1 Be4 Bd2 Qf7 Bc1 Nd5 Bh6 Rc1 Bb5 Nde3+
1n1r2nQ/4RPNK/1BN2qRN/b1QQr1q1/k7/8/1BB2pbB/rr3Q2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 Qd7 a4 Qd6 axb5 Qd8 f4 h5 gxh5 f5 e4 e5 exf5 exf4 Ke2 Kd7 Kd3 a5 Ke4 g5 d4 c5 h4 c4 b4 c3 f6 c2 Kf5 g4 Kg6 a4 b6 f3 b7 f2 h6 a3 f7 a2 h7 g3 b5 g2 b6 Bg7 h5 Nf6 d6 Kc6 h6 Bd7 d5+ Kc5 Nc3 Kb4 Nh3 g1Q+ Ng5 Ng4 Ne6 Rg8 h8Q Ra3 h7 Nc6 b8N Nd4 b7 Qb6 Rh6 Qg3 Ne2 Kb5 Nc6 Qb3 b8B Qb7 Ng3+ Qc4 Bd3 Ne3 Qf1 Qb6 Nf5 Ka4 Bb2 Ng4 Re1 Rd8 Qf8 c1R h8Q a1R Kh7 Qcb5 Rg6 Rcb1 Nh6 Bc8 d7 Bb7 d6 Qg5 Bf5 Re3 Be4 Be5 Ng7 Bf4 Bd3 Re5 Re2 Bd2 Bc2+ Nb3 Re3 Ba5 Qe7 Qd4 Re1 Qdf4 Re2 Qff6 Qef8 Rc8 d8Q Ba8 Qd7 Rd8 Qe6 Bb7 d7 Ba8 Qd5 Bb7 Nhf5 Nh6 Qfc5 Ng8 Nh6 Ba8 Bd3 Nd4 Re3 Rde8 d8B Bb7 Bb6 Rd8 Ne7 Nc6 Be4 Nb4 Nc6 Na6 B8c7 Nb8 Bd6 Re6 Bh2 Re5 Re1 Bc8 Re3 Bh3 Bd3 Bg2 Re1 Rf5 Re7 Re5 Bc2#
B1n1qN1b/1N1Q1p2/B3PB2/kq3rQ1/rb2r1N1/5QK1/N7/n1B1RR1r b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b6 h5 gxh5 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Qg5 Bg2 Qf6 Bf1 Qd8 Kf2 Kd7 e4 c5 d4 g5 h4 a2 b7 Kc7 d6+ Kb6 e5 c4 d7 c3 e6 g4 d5 c2 a5+ Ka7 h6 f3 a6 Kb6 a7 Qc8 d8Q+ Qc7 h7 Ne7 h5 Nc8 h6 Nd6 Qd7 Qd8 Nh3 Nc8 d6 Qe8 Nc3 Ka5 Ba6 Nc6 b8N Nb4 Kg3 f2 Re1 f1Q Nf2 Qb5 Qf3 Rg8 h8B Rg5 h7 Rf5 Rb1 a1B Bf6 Bb2 h8Q Be7 Bh6 c1R Qg7 Nc2 Na2 Na1 Qg5 Rc4 Rf1 Re4 Rbe1 Qc5 Qh5 Qb4 Bc1 Qb5 Qg5 Bd4 Kh4 g3+ Ng4 g2 Kg3 Qb7 Qc6 Qb4 d7 Qb5 d8N Bb4 Nd7 Bdc3 Nf8 g1R+ Qg2 Bd4 Qd7 Rh1 Qf3 Bb2 Be7 Bh8 Bf6 Rb8 a8B Rb6 Ba3 Rc6 Bab2 Rc3 Bc1 Ra3 Re3 Ra4 Re2 Na7 Ree1 Nc8 Nb7+
4q3/2q2r2/1QN2Nr1/2bRQPn1/NB2NQpK/R3q1nn/7Q/1BB1rk2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 f5 e4 Na6 exf5 Nb8 g4 hxg4 b3 a5 b6 a4 Ba6 a3 Be2 Bd7 Bf1 Ba4 bxa4 Qc8 Qe2 Qd7 Qd1 Qd8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb4 h4 e5 h5 g5 b7 c5 d6 e4 d7 a2 h6 c4 a5 c3 f6 e3 h7 c2 d5 e2 d6 Kc4 f5 Nc6 b8Q Nb4 f7 Nc6 a6 Qc8 d8Q Qb7 d7 Nd4 a7 Nf3 Nd2+ Kd3 Nh3 Nf6 Qe5 Rg8 h8Q Rg6 Qb6 Qc7 d8N Bc5 Nc6 Rf8 Bg2 e1R a8N Re2 Qg1 Re1 Qf4 Ke2 Qg7 Rf1 Nf2 Re1 Ba3 c1Q Nde4 Qd2 Qh2 Qe3 Rd1 a1Q Bc1 Qa6 Rd5 Qac8 Rg1 Qe8 Bh1 Rh8 f8B Rh7 Qe7 Rf7 Qee5 Ba3 Bb4 Nh5+ Kg2 g3 Kh3 g2 Nf6 Ng3 Rf1 g1N+ Kg4 Nd2 Be4 Nh3 Bb1 Nde4 Rg1 Nh1 Rg3 Kf1 Kh5 g4 Kh4 Neg5 Rf3 Qe2 Rc3 Ng3 Re3 Bb2 Ra3 Qe4 Qb5+ Qe2 Nb6 Bd4 Na4 Bc5 Qb6 Qe3 N2e4+
6R1/RN1QN2b/p1K2Q2/rNPn3B/r1n1r1Bk/R4Q2/Nq3qn1/1Q1q4 b - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 f5 exf5 b4 f6 b3 g3 Na6 axb3 Qc7 b4 Nb8 b5 Qd8 Bg5 e6 f4 Bd6 f5 Bf4 gxf4 h6 Qe2 hxg5 Qd2 Rh4 Qd1 Rh8 Kd2 Kf7 Kd3 d5 Kd4 g4 c4 g5 h4 a6 b4 g3 h5 g4 b6 g2 h6 g3 b5 Qd7 b7 Qe8 b6 Qe7 h7 Ra7 c6 Qa3 c7 Qc3+ Kc5 e5 Na3 d4 Nb5 d3 Ne2 g1N Nc1 g2 Na2 e4 Be2 e3 Bh5+ Kf8 f7 Ke7 f8N Kf6 Nd7+ Kg7 f6+ Kh6 f5 Kg5 f7 d2 f8Q e2 f6 e1Q f7 Nc6 b8R Nf3 b7 g1R Kb6 Qce5 Nc5 Bf5 c8B Qb2 Qb1 d1Q Qe8 Qg3 f8Q Nce5 Qd7 Nh4 Ra8 Rg2 b8N Ne7 Nb7 Qgf2+ c5 Nc4+ Kc7 Rg8 h8Q Nd5+ Kc6 Bh7 Qf3 Rg3 Rg1 Ng2 Qhg7+ Kh4 Qgf6+ R8g5 Qdd6 Rh3 Bcg4 Rh1 Qd7 Rh3 Q3f4 Ra3 Qf3 Ra4 Nb4 Ra5 Ra3 Bc2 Na2 Bh7 Nd8 Rb7 Ra7 Ra4 Qdg7 Re7 Nb7 Re4 Qd7 Ra5 Re1 Rd4 Re8 Re4 Rg8 Rf4 Be6 Nce3 Kd6 Rfa4 Beg4 Nc4+ Ke6 Qc3 Nc6 Qcb3 Ne7 Qbb2 Qf8 Rf5 Qf7 Rf4 Qf8 Nce3 Kd6 Nc4+ Kc6 Re4 Q8f6+
1b3K1b/1B3NPN/b4pQ1/4RnB1/R1R2B1k/N2rr2q/r2Q2q1/1R1B2q1 b - - 0 1 legal: proof: f4 b5 g4 d5 c4 b4 cxd5 b3 f5 Kd7 f6 exf6 axb3 Nh6 b4 Ng8 b5 Ke8 g5 Kd7 h3 Nc6 g6 Ne5 gxf7 g5 h4 g4 Nh3 Nc6 Ng1 Nd4 Rh2 Ne6 Rh1 Ng5 hxg5 Bb7 Rh2 Ba6 Rh1 Bc8 Kf2 Ke7 Kg3 a5 Kf4 c5 b4 h5 e4 c4 d4 a4 e5 c3 b6 c2 b5 h4 g6 h3 e6 g3 Kf5 g2 b7 h2 b8B a3 b6 a2 b7 Qc7 d6+ Kd8 d7 Ke7 d8N Ra7 d5 Bg7 f8R Qc4 Nf3 g1R Be2 Rh5+ Ng5 Bd7 Qd3 Qc3 Bd1 Re1 Nf7 Rh7 Bbf4 Qd4 b8R Rh8 Rb5 Qe3 Na3 Rh3 Rc8 Bh8 g7 Nh6+ Kg6 Nf5 Rc4 Bc8 Nh7 Ba6 d6+ Ke8 Rab1 a1B e7 Be5 Bd2 Kd7 e8B+ Ke6 d7 c1Q d8Q Bb8 Bc6 Qg1+ Qg3 Qb2 Bb7 Re3 Ra5 Qb3 Raa4 Rd3 Qg2 Rhe3 Qg4 Qg2 Re1 h1Q Qa5 Qhg1 Bh6 Re2 Bdf4 Ree3 Qd2 Qh3 Rc2 Qd5 Rcc4 Qdg2 Nfg5+ Kd7 Kf7 Ra8 Kg8 Ke7 Nf7 Ke6 Qg3 Nd6 Bc6 Kf5 Bb7 Re7 Kf8 Bb5 Nc2 Re5 Rab4 Ra2 Na3 Ba6 Ra4 Re2 Qge3 Kg4 Qe4 Kh4 Qg6 Re6 Re2 Nf5 Re1 Red6 Ree4 Re3 Re5 Rdd3 Bhg5+
1b3R1q/2kNn2N/2p1rbQb/P2RB3/n1QN2Kb/RNQn4/5Q2/b6B b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 cxd5 b4 g4 hxg4 b3 a5 Qe2 Bd7 Qd1 Bb5 axb5 a4 b6 a3 Ra2 Kd7 Ra1 Ra4 bxa4 Ke8 Ke2 Kd7 h4 e5 d4 g5 f4 c6 h5 a2 h6 b3 h7 b2 f6 g3 Kf3 g2 d6 e4+ Kg4 e3 d5 e2 b7 e1B f5 Bh4 a5 Bh6 f7 Qc8 f8Q Be1 f6 Bg7 f7 Qd8 Qe2 Ne7 Bf4 Qb6 Nd2 b1N Qc4 Be5 Nb3 Bg7 Ne2 g1B Ned4 Nc3 Rh6 Bh4 Be5 Qc5 Bg2 Bf6 Bh1 Na6 Qg8 Qb6 Qg6 Re8 h8Q Nc5 b8N+ Kc8 f8N Bh2 Nbd7 N3a4 Qhg7 Nd3 Nh7 Qd8 Qf8 Bg7 Qf2 Bf6 Ndf8 Kb7 d7 Qb8 d8R B2g3 Rb1 a1B d6 Qa8 d7 Bh2 Kh5 g4 Rf1 g3 Kg4 g2 Rc8 g1B d8Q B4g3 Nd7 Bgh4 Re1 Bf4 Re3 Bgh2 Qc3 Qa7 Ra8 Qb8 Qb6+ Kc8 Qbc5 Kd8 Q5c4 Qc8 Rh5 Bh6 Rb8 B2f4 Rf5 Bfg3 Rb5 Qb8 Rd5 Qa8 Rd6 Kc7 Ref3 Nc1 Bf4 Kb7 Qce1 Nc8 Re6 Bfg7 Nd2 Be5 Ra3 Nd3 Rf7 Bef6 N2b3 Qb8 Qec3 Re7 Rd6 Re6 Rd5 Ne7 Bc7 Qh8 Rf8 Bgf4 Bb8 Bd2 Bg3 Bdf4 Bh2 Bc7 Be5 Bb8 Rd6 Kc7 Rd5+
1r1Br3/KQ3Q1Q/p2qRr2/NB2r1B1/1kn3P1/1R3Q2/B5br/Nbb3R1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h3 Nd7 h4 Ndf6 Na3 Ne4 Nb1 Ng5 hxg5 Qd6 Rh6 Qd7 Rh1 Qd8 Kf2 Kd7 b4 Kd6 d4 c5 f6 e5 g6 h5 f7 c4 g7 a6 b6 f3 Ke3 c3 b7 c2 b8R h4 b5 h3 b6 h2 b7 e4 Na3 f2 Nf3 Nh6 g8B Qd7 Nd2 Be7 f8Q Rh7 Bb5 f1B Ndc4+ Kc7 Na5 Kd6 Qdf3 Bd3 Re1 h1R Q8f7 Rh5 Bd2 c1R Nc2 Rg5 Rg1 Rf1 Re1 Bf6 Na1 Bb1 Bc1 Re5 Re2 Kc7 d6+ Kb6 d5 Bg5+ Kd4 e3 Re1 Qe6 d7 e2 d6 Qf6 Bd2 Nf5+ Kc4 Bh6 Bg5 Ne3+ Kd4 Qe7 d8Q+ Qc7 d7 Nc4 Qde7 Qd6+ Q3d5 Rf6 d8B+ Qc7 Qf3 Rh8 Bh4 Bc1 Bg5 Rh2 Qh7 Bd7 Be6 Bc6 Qef7 Nd6 Ba2 Nc4 Ref1 e1R Rf2 Re7 Re2 Re8 Re6 Re5 Rc8 Ra7 b8Q+ Rb7 Qa8 Re7 Rb8 Re8 Kc3 Kc5 Qa7+ Rb6 Qb7 Bce4 Kb3 Qd7 Ka4 Qd6 Qbe7 Bed3 Bd7 Rb7 Nc6 Na3 Ka5 Rb3 Rb5+ Kc4 Kb6 Bf1 Ka7 Bg2 Rb7 Kc5 Na5 Nc4 Rb4 Rd3 Rb2 Rb3 Ba4 Rb8 Rb3 Nb6 Bb5 Nc4 Re3 Kb4 Qeb7 Ref5 Rc3 Re5 Rb3+
1q2rR1Q/1R2QP1n/np4RK/k1n1NN2/2n2BB1/b4Nr1/R7/1Nn3rB b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 a4 Kb6 d4 h5 d6 b3 a5+ Kc6 d7 b2 g7 h4 d5+ Kc7 g6 h3 Kg5 e5+ f6 h2 a6 Kb6 a7 c4 d6 e4 Bf4 c3 Ra2 e3 Bh3 c2 Qe1 c1R Nf3 Qc8 d8R e2 f7 Rc2 d7 Nf6 g8Q Na6 g7 Ba3 Rf8 Nh7+ Kh6 Rc1 d8N Qb8 g5 Rc3 g6 Ka5 Rg1 h1N Bg4 b6 Rg2 Ng3 Nc6+ Kb5 Nce5 Ne4 Qh4 e1N Qe7 Nd3 Rc2 Rb3 Rc7 Nec5 Rd7 Ka5 Rb7 Nf6+ Qh7 Nc1 g8R Rc3 Rg7 Rg8 Qh8 Nh7 Bf5 Qc7 Bg4 Rc8 a8B Qb8 Rd8 Re8 Rg8 Rc7 g7 Rd7 Rf8 Rd1 g8N Rg1 Rd6 Re3 Rg6 Rb3 Qd6 Rd3 Ne7 Rc3 Nbd2 b1N Nf5 Re3 Qe7 Rb3 Ne4 Nd2 Nc3 Nc4 Nb1 Rb2 Ra7 Rbg2 Be4 Rg3 Rb7 Rh3+ N3h4 Rb3 Bh1 Rbg3 Nhf3
N1n5/b4b1Q/R3qrB1/NNb1Nkr1/3b4/5p2/BP1bR1Q1/QK1B1Q1q b - - 0 1 illegal: No possible last move, all moves rejected
2n1k3/Np5N/8/bqnnQBN1/b1BP2B1/1Q1N2Kn/R1RB1n2/qr4Q1 b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra4 f4 Qd6 fxg5 Kd8 h4 Ra8 h5 Nf6 g6 Ng8 g5 Ke8 g7 Qd8 Bd3 Ra6 Bf1 Rg6 hxg6 Qd7 Qh5 Qd6 Qd1 Qd8 Kf2 h5 d4 c5 a4 e5 d6 h4 a5 h3 f6 h2 f7+ Kd7 a6 b3 a7 c4 a8Q c3 Nh3 b2 Bd3 e4 Ra2 e3+ Kg3 c2 Nf4 e2 Qg1 e1N Nd2 b1Q Qa5 Qe8 Ne4 Nf6 g8Q Nd5 g7 Ng2 g6 Nc6 Ng5 Na7 Bd2 c1N Bf5+ Qe6 Bg4 Qb5 Nd3 Nb3 Bf5 Be7 f8N+ Ke8 Nfh7+ Bf8 Rc2 Nc5 Ra2 Ngf4 d7+ Ke7 d8N Qea6 Bg4 Ke8 Nc6 Bd7 Rc2 Nc8 Na7 Nh3 Ra2 Ne3 Qb3 Nd5 g8B Be7 g7 Bd8 B8e6 Bb6 Qaa4 Ba5 Bef5 Rf8 g8B Bc6 Bfe6 Rf1 Bef5 Ra1 Qac4 Rb1 Qcc1 Bd7 Bge6 Bc6 Qce1 Bd7 Qe5 Bc6 Qf2 Bd7 Rc1 h1N+ Kf3 Bc6 Qg1 N1f2 Kg2 Qa4 Rcc2 Q6b5 Kg3 Qa3 Rab2 Qa1 Ra2 Qb6 Qf6 Ba4 Bg8 Qb5 Qg7 Nde7 Bc4 Nd5 Qe5+
Q1K1b1B1/6RN/7B/2b2Q2/q1QNq1k1/3QrNBr/1bnp2qP/B2Rb3 b - - 0 1 illegal: No possible last move
r2r4/b2N1r1Q/NBQ1R2q/2n4k/1K1n2nP/NR1q3p/RB4B1/BR1n4 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 h4 Bd6 h5 Bf8 g3 Qh4 Bh3 g5 Qa4 Bf5 Qd1 Bg6 hxg6 h5 Bf1 Qg4 Ra5 h4 Ra4 h3 Ra1 Qh4 gxh4 Rh7 Ra2 Rh6 Ra1 Rh8 b4 a5 e4 c5 d4 f5 Kd2 c4 Kc3 a4 b6 f3 d6 f2 b7 a3 b5 f4 d5 a2 g7 Kf7 e5 Kg6 b6 f3 e6 g4 d7 g3 d8B g2 e7 Rh5 e8R Rf5 d6 Kh5 d7 Bc5 Qd6 Nc6 b8N Nh6 g8Q Nd4 b7 Ng4 Re6 Rf7 Qc6 Ba7 Kb4 c3 Na3 c2 Bb2 c1Q Na6 Qh6 Bf6 Rd8 Rb1 a1N b8R Nab3 Qh7 Nc5 Rb7 Ra8 Rh2 Rd8 Kc3 Ra8 Rb3 Rd8 Kb4 Ra8 Bb5 f1N d8B f2 Bb6 Nfe3 Bf1 Nd1 Nf3 g1R Bg2 f1Q Ne5 Qd3 Nd7 Rf1 Be5 Rff8 Ba1 R1f7 Bb2 Rfd8 Ba1 Nf5 Beb2 Nd4 Bc1 Nf6 Bf3+ Ng4 Ra2 Na4 Bg2 Nc5 Bcb2
1Bkrb3/1b1Bb3/1Rq2b1B/3RQRPq/1QQ1n2q/B6N/4p3/2KNn1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 c5 f4 e5 b4 a5 g4 h5 f6 a4 d6 e4 d5 h3 g5 c4 f7 h4 b6 h2 b5 a3 f5 h3 f6 a2 b7 Bh6 f8B Na6 b8B Bb7 f7 Nf6 b6 Qc7 Qe1 Nc5 Ba3 e3+ Kc1 e2 Nc3 Ra7 Nd1 c3 Rb1 c2 Qb4 a1B Qc4 Kd8 d7 Nfe4 Rb5 Bc6 b7 Qg3 Rb6 Qh4 Bg7 Re8 f8R Bf6 Bg2 Be7 Rf5 Bb5 Bf8 Bg7 Bf1 Bgf6 Bh6 Ne6 Bg2 Nf4 Bf3 Ng2 Bg4 Ne1 Qb4 Bc5 Qc4 Ke7 Qb4 Rd8 d6+ Ke6 Nf3 Bc6 Rg1 h1Q Qc4+ Bd5 Qb4 h2 Bh3 Bc6 Bg4 Rc8 d8Q Be8 Qc7 Rd8 d7+ Bd6 Qcc4+ Ke7 Nd2 Qf3 Bh3 Qfh5 Nf3 h1B Bg4 Rc8 d8R Bc5 Rd3 Rd8 Rd2 Bd6 Rdd5 Kd7 Nd4 Bf3 Ne6 Bg2 Nf4 Bf3 Ra5 Bde7 Nh3 Bh1 Bd6 Bg2 b8Q Rc7 Rad5 Bh1 Qa7 Kc8 Qaa4 Bg2 Qd4 Ra7 Bb8 Rad7 Qe5 Nd2 Rd3 Bb7 Rd5 Ne4 Qab5 Qf2 Qd3 Qfh4 Qdc4+ Bc6 Qcd4 Ng2 Kb2 Rb7 Rf3+ Rbd7 Be6 Bb7 Rf5 c1Q+ Kb3 Qa1 Kc2 Qc3+ Kb1 Qc7 Qdc4 Qc6 Kc1 Ne1 Bxd7+
n1N2r2/1R2QRqk/2r2pq1/r2RBNR1/7K/B1QrPN2/n1q5/B2b1N2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 g4 Bb4 h4 Kd7 hxg5 Ba3 f4 Bc5 g6 Bd6 g5 Ke7 Bh3 Ke8 Bf5 Be5 fxe5 exf5 Kf2 Kf8 Kg3 Kg7 d4 c5 b4 h5 d6 a5 e3 f4+ Kh4 f3 d5 f6 e6 a4 b6 c4 d7 c3 b5 a3 d6 c2 b7 f2 e7 f1Q e8N+ Kf8 b6 a2 g7+ Kf7 Nd2 Kg6 Ba3 c1R Qc2+ Qf5 Rb1 a1R Nf1 Qd3 Nf3 Kh7 Qc3 Na6 b8B Ne7 g8N Qc7 d8Q Nb4 b7 Qc2 d7 Na2 Nd6 Ra5 Nh6 Rf8 Nhf5 Nd5 Rh3 Nb6 g6+ Kg8 g7 Kh7 g8R Na8 Rb3 Rd1 Rg5 Rac1 Qe8 Rd3 d8R Qg7 Qe7 Be6 Rb5 Bb3 Nc8 Ba4 Rdd5 Bb3 Kg3 h4+ Kg4 Ba4 Be5 Bb3 Rg3 h3 b8B h2 Rb7 h1Q Bd4 Ba4 Bbe5 Qh6 Rg2 Qg6 Kh4 Qb1 Rgb2 Bd1 Rbd7 Qc2 Rbb7 Ra4 Qcc5 Ra5 Ba1 Qg2 Qb4 Rc6 Qc3 Qe2 Qe8 Qb2 Rf7 Qc2 Qe7
q1BR1rn1/2n2r2/p1B1P3/2K1R1q1/1NN1Q1q1/b3Nn1B/Q2nB3/RNk5 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 g4 Qf6 b3 Kd7 Bb2 Qd6 Bd4 Qb4 Be3 Ke8 Bf4 gxf4 h3 Qe7 g5 Bg4 hxg4 Qd8 Kf2 Kd7 e4 c5 d4 h5 d6 Ke6 d5+ Kd7 b6 f5 e6+ Ke8 e7 Kd7 e8B+ Kc8 e5 Kb7 g6 f3 Ke3 a6 g7 c4 Kd4 h4 b4 f4 g5 c3 b5 f2 d7 c2 g6 c1Q d6 f3 Qa4 h3 Be2 f1Q Qa2 f2 Nf3 h2 Nh4 Rh5 Ng2 Qdc7 d8R Qg1 d7 f1N+ Ne3 Qg4+ Kd5 Ng3 Re1 Ne4 Kd4 h1N Kd5 Nh6 g8B Nd2 g7 Nc6 Be6 Nf3 g8B Qc8 Bh7 Ng8 Bhf5 Nce7+ Kd6 Qg3 Bh3 Nf2 Bef5 Rh7 Bfg4 Kb8 b7 Ka7 b8N Kb6 Nc6 Rf7 Na5 Q1c4 Be6 Qg5 Bef5 Qcg4 Nac4+ Kb7 b6 Nd5+ Ke6 Kc6 b7 Kb5 b8Q+ Kc5 Qb4+ Kd4 Qe7 Nc7+ Kd6 Ne4+ Kc6 Ned2 Be6 Ke4 Kc5 Bg7 Bf5+ Kf4 Qe6 Kg3 Qc6 Kf2 Qe4 Qb7 Rb8 Bf6 d8N Bg7 Nc6 Bf8+ Nd6 Be7 Rd8 Rc8 Nb4 Qa8 Bc6 Bf8 Rc1 Rb8 Rc3 Ke1 Bc8 Be7 Ned5 Bf8 e6 Be7 Re3 Bf8 Bd3+ Kd1 Bdf1 Kc1 Be2 Bg7 Nc4 Bb2 Qh7 Ba3 Re5 Nb5 Qe4 Nc7 B8b7 Rc8 Nde3 Rb8 Rd7 Re8 Bc8 Ref8 Rd8
N5Q1/1R1B2pQ/3b3R/1NR1Q1r1/K5RB/1r1qn2k/n1qQPN1r/1q5q b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b6 h5 gxh5 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Qg5 Bg2 Qf6 Bf1 Qd8 d4 Ke7 Kd2 Kf6 Kc3 Kg5 Kb3 Kh4 a5 c5 d6 f5 a6 a2 h6 f3 d5 f4 b7 f2 d7 f3 h7 c4+ Ka4 c3 a7 c2 d6 Qc7 d8R Qc8 d7 Qc3 Qd2 Bd6 Rc8 Qb2 d8R Qe5 Rd7 Qc5 Bh3 f1Q Na3 f2 Nb5 Qf5 Rc5 Na6 b8Q Nb4 Rb7 Qd3 Bd7 Nh6 Nh3 Nf5 Rb1 Bf8 Qe5 Rb8 a8N a1Q+ Ba3 Qg2 Rbg1 f1R Nf2 c1Q h3 Qge4 Rg2 Rg1 Rg4+ Kh5 h4 Qab1 Bb2 Bd6 Bd4 Qf1 Be3 Qc6 Bg5 Ne3 Rh3 Na2 Bd8+ Kh6 h5 Qfg2 Bh4 Qh1 Rd4 Rg5 Rg4 Rhf8 Rh2 Rf3 Rh3 Rg3 Rh2 Rg2 Rh3 Rh2 h8Q+ Qh7 Qg8 Qhd3 Rd5 Qcc3 Rc5 Qcc2+ Qb3 Kh7 h6 Kg6 h7 Kh5 h8Q+ Qh7 Ra7 Qd3 Qbg8 Rb6 Nc3 Rb3 Nb5 Qdc2 Rb7 Qd3 Qge6 Qdc2 Qhg8 Qhd3 Q6f5 Qa1 Rb4 Qad1 Qfe4 Rf5 Bg3+ Kg5 Rh6 Qdb1 Re6 Kh5 Bh4 Rg5 Nh3 Qdc4 Qeh7+ Kg4 Rh6+ Qf5 Nf4 Qcc2 Nd3+ Kh3 Rg4 Qg6 Nb2 Qgf5 Nd1 Qfd3 Nf2+
3r1Qb1/PQp5/N1qN1bb1/2BR3R/r3N1RB/1N2r1Q1/2q1kb1K/2n3Q1 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Nc6 bxa3 Bd7 a4 Bc8 a5 Nb8 f4 h5 f7+ Kd7 g5 Kd6 f5 Nd7 Bh3 Ndf6 gxf6 Kd7 Bg4 hxg4 Kf2 Kd6 Kg3 Ke5 d4+ Ke4 h4 b5 a4 e5 h5 g5 d6 b4 d7 b3 h6 b2 d5 Rh7 d6 Rh8 h7 Be7 f8N Ra7 f7 Bb7 f6 Ra6 Nd2+ Ke3 Ne6 b1B f8B e4 f7 Qb8 d8N Bd3 d7 Bc6 Rh5 Qb5 Nb7 Bf6 d8R Ne7 Rd5 Nf5+ Kh2 Ng3 Nec5 Ne2 Nh3 Qc4 Nf2 Qc2 Be7 Rd8 Ba3 Nc1 Qg1 Ke2 f8Q e3 h8Q Bg6 Nd6 Bd7 Qh7 Be6 Qhg7 Bg8 Nfe4 Ra7 a6 g3+ Kh1 g2+ Kh2 g4 a5 Raa8 Ndb3 Ra7 Bb4 Raa8 Be1 Ra7 Bh4 g3+ Kh3 Raa8 Ra4 Ra7 Ne6 Raa8 a7 Qc6 a6 Qc2 Qh1 g1Q N6c5 g2 Rad4 Qe1 Kh2 Qec3 Ra4 Qc4 Qg1 Qb5 Rad4 Qc6 Rc4 Rab8 a8Q Rb4 a7 Ra4 Qh1 g1R Qb7 Re1 Na6 Be8 Rdf5 Kd1+ Ned2 e2 Bf2 Bc3 Beh4 Bf6 Qg3 Bg6 Rb4 Rf1 Re5 e1B Bc5 Bf2 Rg4 Re1 Qhg2 Re3 Qg1+ Ke2 N2e4 Be6 Ref5 Bg8 Rd5
2QRnNn1/1PnN1q2/R1B1b3/3pb1N1/8/Q1QB1r2/KnQNRk2/5n1n b - - 0 1 legal: proof: a4 a5 g4 f5 gxf5 c5 d4 b5 axb5 h6 dxc5 Ba6 e4 Bc8 f4 Qb6 e5 Kd8 f6 Qc7 f5 Ra6 Bg5 hxg5 f7 Rf6 exf6 Qb6 Ra2 Kc7 Ra3 Kb7 Ra2 Qd8 Ra1 Kc7 Kd2 d5 Kc1 e5 h4 e4 c4 g4 b4 g5 Kb2 e3 c6 Kb6 c7 g3 h5 e2 h6 e1N h7 a4 Ne2 g4 Nd2 a3+ Kb1 g2 Qc2 g1N Rh2 g3 Ka2 g2 Nd4 Ngf3 Bd3 g1N Re2 Qe8 Ne6 Nd7 Ng5 Bg7 f8N Nh3 f7 Nf2 f6 Nh1 c5+ Ka7 c6 Kb6 Ng6 Nd4 f8R Ne6 f7 Ndf6 Ne5 Qd7 Rd8 Ne8 f8N Qf7 Ned7+ Ka7 Nc4 Be5 b6+ Ka6 b7 Kb5 Kb3 a2 b8Q+ Bb7 c8B N6c7 Qa8 Ba6 Rb1 a1N+ Ka2 Nb3 Ra1 Nd2 Bb7 Nf1 Qa7 Qf4 Ba8 Bc8 Qa3 Qf7 Bb7 Ng2 Ba8 Nge3 Nd2+ Nc4 Bb7 Nh6 Ba8 Rg8 h8Q Rg7 Qh7 Ng8 Qh8 Rg6 Qh3 Rf6 Qg3 Rf3 Qac3 Ka6 b5+ Ka7 b6+ Ka6 Qh3 Kb5 Nb8 Kc5 Qg3 Nb5 c7 Be6 c8Q+ Nbc7 Qa3+ Kd4 Nbd7 Nb2 Bc6 Nf2 b7 Nh1 Rg2 Ke3 Qac3 Bf6 Qd6 Be5 Re2+ Kf4 Qda3 Kg3 Rb1 Nc4 Rb6 Nb2 Re1 Kg2 Ra6 Kf2 Re2+
B2qr2B/4q1R1/1QN2NB1/r4nq1/2KP4/1r3nN1/Qq2R1p1/Q2NkB1q b - - 0 1 legal: proof: a4 b5 axb5 e5 c4 d5 cxd5 e4 g3 e3 Qc2 exf2+ Kd1 Bh3 Qb3 Bc5 Kc2 Bf8 Kc3 Nf6 Qd1 Ng8 Kc2 Bc8 Nh3 g5 Nc3 f5 Ng1 f4 Nb1 g4 h3 f3 Ra4 Bh6 Ra1 Bf4 gxf4 g3 Nc3 Kf8 Nb1 Bg4 hxg4 Ke8 Kb3 Ke7 e4 Kd6 g5 Kc5 e5 Kd4 e6 c5 e7 h5 e8B a5 b6 h4 f5 g2 g6 h3 g7 h2 d6 Rh7 f6 Rh3 d7 Ra6 b7 Nh6 g8B Ra7 f7 Ra8 f8Q Qg5 d8Q+ Nd7 b8N Qe7 Bd5 Ne5 Bg6 Nf5 Ne2+ Kd3 Qf7 Rh5 Rg1 h1Q Nbc3 Rh8 Ra2 Re8 Qb6 Ra7 Ba8 c4+ Ka4 Qh8 Kb5 a4 b4 a3 Rh1 Ra6 Rc2 a2 Bb2 a1Q Nd7 Qa2 Ba1 Qb2 Nf6 Ra3 Rh5 Rb3 Rh7 Qg8 Qe1 Qgf8 Nd1 c3 Rg7 Qd8 Rc1 c2 Qfa7 Qf7 Qa2 Qfe7 Rb1 c1Q Ng3+ Kc2 d3 Qf7 Kc5 Qg5 b5 Qfd7 Qea5 Qe6 Q5a3 Kd2 Rc1 Ke1 Rc2 Ng4 Qa4 Qee7+ Kc4 Nh2 Qaa7 Qba3 Be5 Qac1 d4 Qb2 Be2 f1Q Bd3 Qg1 Bf1 f2 Qa1 Qb8 Q7a2 Qh1 Nd7 Qgf6 Qd6 Qb1 b6 Rd3 b7 Qg5 Rf7 Qb2 Be2 f1R Qb6 Nh6 Bh8 Rf5 Bf1 Rb3 Rg7 Qbd8 b8N Ra5 Nf6 Nf5 Nc6 Nf3 Re2+
Br4B1/2k1n3/NprbQ2Q/1PRqbRpR/n1Qb3N/4B1B1/2K1Qn2/8 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 d5 c4 h5 cxd5 Nc6 g4 Nb8 gxh5 Be6 Nf3 Bd7 Ng1 Bc8 d6 c5 b5 c4 d3 c3 Qb3 Be6 Qb4 Bc4 dxc4 axb4 Kd1 Kd7 a4 e5 f4 g5 h4 b3 c5 b6 f6 e4 h6 e3 f7 b2 h7 e2+ Kc2 e1B h5 Ra5 c6+ Kc8 d7+ Kc7 f5 Qe8 d8B+ Kc8 f6 Qe6 c7 Bb4 f8R Bh4 h6 Qf7 Bc4 Nd7 Be3 Ra8 a5 Nc5 a6 Na4 a7 Kd7 c8Q+ Kd6 Na3 b1N Nf3 Qh5 f7 Bf2 Nh4 Nf6 Bc7+ Ke7 Bg3 Rg8 h8Q Qf3 h7 Rb8 a8B Rg6 Qg8 Bd6 h8Q Ng4 Qh6 Qd5 Bb3 Bg1 Qc4 Kd7 Rc8 Nf2 f8Q Be5 Rc5 Rc6 Qge6+ Kc7 Qf3 Bd6 Qfe2 Bh2 Kc1 c2 Rf1 Nbc3 Rb1 Nh1 Rf5 Nf2 Ba2 Nd3+ Kd2 c1B+ Kc2 Bb2 Rh1 Nf2 Nf3 Bg1 Rh5 Qd4 Nh4 Nd5 Kb1 Qd2 Nc2 Bbe5 Nb4 Ne7 Bb3 Qd4 Kc2 Qd5 Qg8 Nc8 Qcg4 Nd1 Bef2 Qe6 Bd5 Qf7 Qgc4 Ne7 Bd4 Be3 Qgg6 Nf2 Qg8 Bc1 Be3 Bcb2 Qgg6 Qg8 Bf7 Bbd4 Be6 Qc8 Bg8 Qe6 Qf7 Qd5 Qff6 Rf8 Qe6 Rb8 Na6+
1BK1RBB1/N2nb3/Pb4pr/NR1Nrk2/nNB4r/Q3R3/5pqQ/7n b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 Ke7 b4 axb4 g4 Ke8 d3 c5 Qc2 h5 gxh5 c4 Bd2 c3 Bc1 Bd7 Qa4 Bb5 Qd1 Bc4 dxc4 Qb6 Bh3 Qc7 Bf1 Qd8 Kf2 Kd7 Kg3 f5 Kf4 b5 h4 b3 e4 c2 a4 g6 a5 b2 e6+ Kd6 a6 b4 e5+ Ke7 c5 b3 d6+ Ke8 h6 Bg7 e7 Kd7 e8B+ Ke6 h7 Bf6 c6 Bg7 d7 Qb6 d8N+ Ke7 e6 Kf6 c7 Nd7 c8N Qc5 e7 Nb6 h5 Nc4 h6 Qd5 Rh3 Qe6 Qd3 Na5 Nb7 Qc6 Bf7 Qg2 e8R Nc6 Ne2 Nce7 Ra5 Bf8 Na3 b1N Nc3 b2 Re3 Rb8 Bd2 c1B Na7 Rd8 Rc5 Rd5 Rb5 Re5 Be1 Bd2 Bg3 Be1 Nc2 Bf2 Nb4 Bg1 Nd1 Nc3 Na5 Na4 Qa3 b1R B1c4 Bf2 Nc3 Rh1 Ba2 Rh5 Bfc4 Rh2 Ncd5+ Ke6 Qb2 Nf6 Qa3 Nd7 Bab3 Rh4+ Kg5 Rg8 h8B Rg7 Ba2 Rh7 Bg7 Rh8 h7 Rh6 Bab3 f4+ Kg4 f3 Kf4 Kf7 Ba2 Nf5 Bab3 Be7 Bf8 Ke6 Bh2 Rg8 h8Q Ng3 Ba2 Rh3 Qh4 Nh1 Qg3 Rhh8 Qh4 Rh6 Bg3 Rgh8 Qh2 Kf7 Bab3 Rf5+ Ke4 Ke6 Bb8 R8h7 Rd3 Bb6 Re3 Rfh5 Ba2 Ndc5+ Kd4+ Kf5 Bab3 f2 Ba2 Kg5 Ke5 Nd7+ Ke6 Rh4 Bab3 R6h5 Ba2 R7h6 Bab3 Bf6 Kd6 Be7+ Kc6 Kg4 Kb7 Re5 Kc8 Kf5 Nf4 Qg5 Bg8 Qg4 Bbc4 Qg2 Nfd5
2k1R1n1/6N1/p1bnQ2N/3BK1PN/1QR1R2Q/1r1bqrR1/1Qr1p1B1/2b5 b - - 0 1 illegal: No possible last move
4n3/1N1rPpr1/1R2pR1K/2QBb1N1/1B1QbqN1/5RrR/5Q1N/1n2n1k1 b - - 0 1 illegal: No possible last move, all moves rejected
1k3N2/B3pN1N/Qr1bPr2/Q2p1R2/1r1bq1Rn/2B1n2B/1N2K3/Q1b4Q b - - 0 1 illegal: No possible last move
Rb1nRk2/Pb3B2/3NQ1rb/p1p4n/2NN4/1KRQr3/RN2n1q1/2B4Q b - - 0 1 legal: proof: b4 a5 g4 f5 c4 d5 cxd5 h5 gxh5 b6 e4 Rh7 exf5 Rh6 a4 Bd7 bxa5 Bc8 a6 Rh8 a5 bxa5 d4 c5 Kd2 e5 Kc2 g5 f4 e4 h4 e3 f6 g4 a7 e2 f7+ Ke7 d6+ Ke6 d7 Ke7 h6 e1N+ Kb3 g3 h7 g2 h5 Ba6 d5 Nf3 d6+ Ke6 f5+ Kf6 h6 Qe7 d8N Bd3 d7 Ng5 Nc3 Qe1 Nc6 Qd2 d8N Bb1 Na4 Ne6 Ne2 g1B Ned4 Bf2 Bc4 Bd6 f8R+ Kg5 f6 Kg6 f7 Be3 Rh3 Ng7 Re8 Qg2 f8Q Nf5 Nb2 Bef4 Re7 Nf6 Ra2 Nh5 Nb7 Nfg3 Qc8 Be4 Qd3 Rg8 h8Q Ne2 h7 Bh6 Rf3 Bdf4 Nd6 Rg7 Rh3 Kf6 Ne5 Bb7 Bf7 Nc6 Qd7 Re8 Nec4 Nd8 Qc6 Be5 Qg8 Rg6 h8R Qh2 Qh1 Qg2 Qd2 Bh2 Rc3 B2f4 Qd3 Bh2 Rd7 Re3 Re7 Bg3 Qe8 Kg7 Qc6 Ne6 Rb8 Nd8 Ra8 Kf8 Qd7 Be5 Qe6 Bef4 N6f5 Bc7 Nfd6 Bb8 Re8+
bqk5/nn1Q1B1N/1Rrp1R1R/4BK1N/8/Nr2p3/Nq2QP2/B1B2nb1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Ke2 g5 Kf3 e5 Ke4 d6 c4 Kd7 h4 d3 h6 d2 h5 g4 h7 g3 h6 g2 b6 Ra7 c5 Qg5 f6 Qg7 c6+ Kd8 a6 Ne7 b7 Kc7 f7 Nd5 Qe2 d1N Nh3 g1Q Na3 N5e3 Rb1 Nd5 Nf4 Ne7 Rb6 Nf5 Nh5 Nd7 b8N Rb7 a7 Nde3 a8R Ne7 Na6+ Kd8 Bh3 Nf1 Be6 Q1g3 Bd5 Qb3 Nb4 Rc7 Ra4 Bb7 Na2 Nc8 Kf5 Na7 Rf4 e4 Rh2 Rg8 h8B e3 h7 Qgb2 Be5 Bh6 h8B Nc5 f8N Ba8 Nh7 Kc8 Bf7 Nb7 Rf3 Bf4 Rh1 Rd7 c7 Bh2 Rf4 Bg1 Rh3 Qd2 Ba1 Rg4 Bhe5 Qdb2 Rff3 Rc4 Rh1 Rd8 Rh4 Kd7 Rff4 Rb8 c8Q+ Ke7 Qe6+ Kd8 Qe7+ Kc8 Ke6 Qb5 Rf6 Rc6 Kf5 Qa4 Nf4 Nd8 Ra6 Rb3 Rhh6 Qb4 Nh5 Qb8 Rb6 Nb7 Qd7+
1Q1R1N2/1N1N1r1Q/1pb2n1q/6Nb/2B1rQ2/1RQ1qPr1/4n1p1/K2kBR2 b - - 0 1 legal: proof: b4 d5 g4 h5 gxh5 a5 a4 axb4 c4 f5 cxd5 c6 e4 e6 exf5 Qf6 a5 Qd4 a6 Qf6 a7 Qh4 Ra3 Na6 Ra1 Rb8 a8Q Qd8 Qa7 Ra8 Qb8 Bd6 Qxd6 Nh6 Qb8 Ng8 d4 Ke7 Kd2 Kf6 Kc2 g5 Kb2 c5 h4 c4 h6 b6 d6 c3+ Ka2 e5 d5 c2 h5 b3+ Kb2 g4 d7 g3 d6 g2 h7 e4 h6 Ke5 f3 e3 f6 Kf4 f7 Qg5 d8N Bg4 f8N Bh5 d7+ Nc7 Nd2 e2 Nh3+ Ke3 Rb1 e1R Bc4 Nd5 Rf1 Nc3 Nb7 Nf6 d8R Rg8 h8Q Ne2 h7 Qh6 Ng5 Ra6 Qg7 Ra7 Qg6 Rg7 h8Q Rf7 Qgh7 Ra4 Be6 Rg4 Ka1 Rg3 Bb2 c1Q Bc4 Qc3 Nde4 Qd3 Bc3 b2+ Ka2 Qd4 Nec5 Qd2 Ncd7 Qd3 Rc1 b1B+ Ka1 Bc2 Bb4 Ba4 Rc3 Bc6 Qb1 Kd2 Rb3+ Nc3 Qf5 Re4 Qff4+ Qe3 Qe1+ Kc2 Qh7 Ne2 Ba5 Re7 Qb4 Rg7 Qa3 Rf7 Be1 Kd1 Qa5 Bg6 Qb4 Bh5 Qc3
3Nb1kn/Q2pq3/N1nR1q2/3NNB1B/5KPR/R1Bbp3/3rb3/1QRr4 b - - 0 1 legal: proof: g4 c5 e4 g5 f4 f5 exf5 b5 fxg5 b4 d4 cxd4 a3 Bh6 axb4 Bg7 b5 Be5 Bd2 Qb6 Bc1 Bg3+ hxg3 Qd8 Kf2 Kf8 Kf3 h5 c4 a5 b4 e5 g6 e4+ Kf4 h4 c5 a4 b6 e3 b5 h3 g5 a3 g4 h2 b7 a2 c6 d3 f6 d2 b6 Rh5 f7 Nf6 g7+ Ke7 g8B Kf8 g6 Rd5 g7+ Ke7 f8N Ra3 c7 Ne4 Ne6 Ng3 Bb2 Nc6 b8N Ra6 b7 Rb6 Nc3 Nf5 Na6 Nd6 b8Q Nf7 Qb1 d1B Bd3 Be2 Qa7 Nh8 Bf5 Rd2 Bf7 Rb5 g8R Rbd5 Rg6 Qf8 Nb4 Bca6 c8R Bad3 Na6 Qg7 Nd8 Kf8 Be8 Kg8 Rd6 Qe7 Bh5 Rd1 Nf3 Rd2 Rd1 h1B Ne5 Bhe4 Rh1 Rd4 Rh4 Bd5+ Be4 Bf7 Nd5 Be8 Bc3 Rd1 Qb3 Rd2 Rc1 a1Q Ra8 Rb4 Qa2 Rb1 Bf5 Qb2 Rc2 Rbd1 Rc1 Qf6 Qb1 Qa3 Re6 Qae7 Rd6 Bc4 Rb8 Bcd3 Rb3 Qg6 Ra3 Qgg5+ Kg3 Qgf6 Kf4
3r1N1k/qQ1p1n2/RNRB1P1B/3Q1B1N/2p2n2/1r1Rq3/2B4K/b2bR2b b - - 0 1 legal: proof: e4 e5 b4 g5 d4 b5 dxe5 f5 exf5 Bh6 a4 Nc6 axb5 Bg7 h4 gxh4 c4 Rb8 b6 Bf6 b7 Be7 b5 Ra8 c5 Nb8 Bh6 Bf8 Be3 Qf6 Bc1 Qb6 cxb6 Bg7 Be2 Bh6 Bf1 Bf8 g4 Kf7 f4 Kg7 Kf2 a5 Kg2 c5 e6 h5 e7 c4 e8B a4 f6+ Kh7 f7 a3 g5 a2 f5 h3+ Kh2 h4 f6 Bc5 Ne2 Be7 Nf4 Ra3 g6+ Kh6 f8N Rd3 g7 Na6 b8B Rb3 b7 Ba3 b6 Nb4 Nc3 Nd3 Bd6 Bb2 b8R Bb7 Nh5+ Nf4 Bd3 Bf3 b7 Bg4 Qd2 Bd1 Na4 Be5 Ra8 Bb2 Rb1 a1Q Nb6 Qa7 b8Q Be5 Bc2 Ba1 Nd5 Qe3 Beg6 Qa7 Bgf5 Qe3 Ng6 Kh7 Ra6 Nh6 g8R Nf7 Rc8 Rd8 Nf8+ Kh8 Rcc6 Qa7 Re1 Qe3 Kh1 h2 Qb6 Ne2 Kg2 h1B+ Kh2 Nf4 Qb7 Qa7 Re3 h3 Rd3 Qe3 Qa5 Qa7 Kg3 h2 Nb6 Bhf3 Be3 h1Q Qd5 Qe1+ Kh2 Bh1 Bc1 Ne2 Bh6 Nf4 Rc1 Qe3 Rb1 Bdf3 Rf1 Bd1 Re1
B4B2/1rpBN3/2q1Rb2/4Q3/R2n1r2/n2PK3/rN1Rbp2/1QRq1QkB b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Kd7 e4 Kd6 h4 Ke5 h6 Kd4 a6 g5 e5 f5 h5 g4 b6 f3 b7 f4 h7 Qe7 e6 Qd8 h6 Qg5 d6 Qf6 d7 Qd8 e7 Nf6 e8B Ng8 a7 Nf6 Na3 Qe7 d8R+ Qd6 Nc4 Nd5 Nh3 Nb4 Nb2 Be7 Ra4 Bf6 Bg2 Nc6 b8R Ba6 Bd7 Be2 Rb6 Rg8 h8Q g3+ Kg1 Rb8 a8B Rb7 h7 Ke4 Qg7 Nd4 h8Q Nbc2 Qg5 Na3 Qc2+ Bd3 Qb1 Qd5 Rd6 Qc6 Qa5 Rg5 Qc3 Ra5 Re6+ Kf5 Qc5+ Kg4 Qe5 Be2 Qhh7 Bd1 Kf1 Be2+ Ke1 Ra6 Rf1 Ra5 Bh1 g2 Kf2 g1R d3 Raa7 Rde8 Rg3 Qhf5+ Kh4 Bd2 Rg4 Rc1 Ra6 Bb4 Ra5 Ke1 Kg3 Kd2 Kh2 Bf8 f2 R8e7 f1Q Qh5 Rg3 Qh7 f3 Ke3 Qd1 Nf4+ Rh3 Nd5+ Kg1 Qhh5 Rg3 Qh3 Rg4 Re8 f2 Ne7 Rf4 Rb8 Rb4 Rb5 Ra6 Rbc5 Rb7 R5c2 Ra5 Rd2 Nab5 Rac4 Ra2 Ra4 Na3 Qf1+
1n1NB2Q/4r3/1r2Q2b/krN2B2/2Nrp3/1p1NPbRq/2Q5/RQn2RK1 b - - 0 1 legal: proof: d4 d5 f4 g5 fxg5 a5 c4 a4 cxd5 a3 bxa3 Qd7 a4 Qd6 a5 Qd8 g4 c5 dxc5 h6 g6 Nf6 g5 Nh7 g7 Nf6 g6 Ng8 Bg5 hxg5 Kf2 Kd7 a4 Kc7 h4 f5 h5 b5 c6 e5 h6 b4 e3 e4 a6 Kb6 d6 f4 c7 b3 a5+ Kc6 a7 g4 d7 f3 h7 Bb7 c8B Qf6 a6 Kb6 d8N Qe6 Na3 Nf6 g8R Nh5 g7 Nf4 Qb1 Ka5 Ne2 g3+ Kg1 g2 Nc1 Qh3 Bf5 Bc8 Bb5 Nd3 Be8 Be6 Qc2 Bf7 Qb1 Bh5 Qc2 Nc6 Qb1 Rb8 a8Q Rb6 a7 Nb8 Qc6 Rb5 a8N Rb6 Ne2 Nc1 Nc7 Bg4 Nce6 Rb5 Kf2 g1R Qcc2 Rd1 N2f4 Rd4 Kg1 Rb6 Nd3 Rb5 Qg2 Bh5 Nec5 f2+ Kf1 Bf3 Rg1 Bd6 Rf8 Bf4 g8Q Bg5 Qe6 Bh6 Rf6 Rf8 h8Q Rf7 Rg6 Rc7 Rg3 Re7 Bg4 Ra7 Qef6 Bd1 Rh1 Ra6 Qe6 Rab6 Rg1 Qh4 Qh2 Be2+ Kg2 f1R Bh3 Rf4 Rf1 Rf7 Bf5 Bf3+ Kg1 Qh3 Qhc2 Re7 Nc4#
1k2n2r/qb2RR2/B2BQB2/rb3BR1/Pp1Q3R/3p2N1/3Q3K/n2rr2N b - - 0 1 legal: proof: g4 a5 d4 c5 dxc5 f5 e4 g5 exf5 e6 h4 Ne7 hxg5 Ra7 b4 axb4 f4 Ra4 g6 Ra6 g7 Ra7 g5 Ra8 g6 Ng8 Ke2 Be7 Ke1 Bg5 fxg5 Ra3 Ne2 Ra7 Ng1 Ra8 Kf2 d5 Kg3 Kd7 a4 Kc7 c4 h5 c6 b5 c5 h4+ Kh2 h3 f6 b3 f7 d4 f8B e5 Nd2 e4 Bb2 e3 Ne4 e2 Qd2 e1R Ne2 b4 N4g3 Ba6 Bd6+ Kc8 c7 Kb7 c8B+ Ka7 c6 Qe7 c7 Rh4 Bf5 Rf4 c8Q Bb5 Qcc3 Nf6 g8Q Nbd7 g7 Ne8 g6 Rh4 Qe6 Nc5 g8R Rh8 g7 Qc7 Qcc4 Kb8 Rf8 Ra5 g8R Rd1 Bc3 b2 Rf7 b1R Rg5 Nb3 Ra3 Na1 Bb2 Rdc1 Re3 Re1 Re4 Rbd1 Rh4 Rh7 Rg1 Rh8 Nh1 Rf8 Neg3 Rh8 Bg2 d3 Bb7 Bd7 Bf6 Bb5 Bc5 Qb6 Qd4 Qa7 Rf1 Nc7 Re7 Ne8 Kg1 h2+ Kg2 Nc2 Ba6 Na1 Bd6+ Qc7 Nf2 h1B+ Kh2 Bb7 Nfh1 Be4 Bfe5 Rb1 Bh7 Rbd1 Rff7 Bf3 Bf6 Bg2 Bc5 Qa7 Bf5 Bb7 Bd6+
5b1B/1K5n/r3P1b1/2Q1RNBR/rQr3kp/4pQ2/1B1R1qB1/r2nQ1N1 b - - 0 1 legal: proof: c4 b5 e4 e5 d4 g5 h4 gxh4 a4 d5 axb5 f5 exf5 e4 cxd5 Qd6 Bf4 Nf6 Bc1 Qe5 dxe5 Ng8 Kd2 Kd7 Kc3 h5 Kc4 c5 g4 a5 f4 h3 b4 a4 d6 a3 Kd5 a2 e6+ Kd8 b6 e3 f6 h2 b5 c4 d7 c3 b7 c2 f7 Ke7 b6 Kf6 d8B+ Kg6 f5+ Kh6 f6 Kg5 Na3 Bd7 Nb5 Be7 f8Q Bb4 f7+ Be7 Bg2 Nh6 Qe1 Kf4 g5 Kg4 g6 Be8 g7 Ra7 g8R+ Kf5 Bb2 Ra4 Rd1 c1R Rd2 Nd7 b8Q a1R b7 Rcc4 Nd6+ Kf4 Rg7 Ng4 Rg5 Nf2 Re5 Nd1 Nf5 Kg4 Qa8 Bc5 Kc6 Nf6+ Kc7 Bb4+ Qc5 Nh7 f8B Bg6 Bg7 Re8 b8Q h4 Bh8 Rf8 Bg5 Rd8 Qb5 Rd6 Kb7 Ba3 Qbb4 Rc6 Nf3 Rca6 Rf1 h1Q Ng1 Qh2 Rf4+ Kh5 Rfd4 Qg3 Rd7 Kg4 Rf7 Qf2 Rf6 Bh5 Rh6 Bg6 Rh5 Nc3 Qcf8 Rc6 Qba5 Be7 Kb8 Ra6 Qb4 Bc5 Qc8 Bf8 Qcc5 Nd1 Qad5 Bf7 Kb7 Bg6 Qf3+
2NN3N/knB3B1/5r1R/2R4R/2q4B/K1b1q2p/1NprP2b/Rr2Q1Qb b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 g4 Bb4 h4 Kd7 hxg5 Ba3 f4 Bc5 g6 Nc6 g5 Bf8 Bh3 Ke8 Bf5 Ne5 fxe5 exf5 d4 Kd7 Kd2 h5 Kc2 a5 Kb3 c5 g7 Kc7 e6 Kb8 b6 a4+ Ka3 c4+ b4 f6 e7 h4 e8N c3 d6 c2 b5 f4 d5 f3 g6 f5 b7 f2 Bb2 f1R Nh3 f4 Ng5 f3 Nc3 f2 Qe1 Qf6 Nf7 Ne7 g8Q Nf5 g7 Nh6 Nd1 Ka7 b8R Qd4 Rb6 Qc4 Bc3 Be6 Nb2 Rb8 Bd4 Rh7 Nh8 Nf5 Rc6+ Rb6 Rc5 Rh6 d7 Rd6 d8B Rf6 Rh2 Rd7 d6 Bd5 Bc7 Bh1 Be5 Rd8 d7 Bd6 Bc3 Bg3 Nd6 Bf4 Rh3 Bh2 Be5 Rg1 Bc3 f1Q b6+ Ka6 b7 Qf2 b8B Qe3 Nc8 Nd6 Rh5 Nb7 Bg3 Rgf1 Bbc7 Rg1 Qh7 Rgf1 g8R Rg1 Qg7 Rgf1 Nb6 Ka7 Re8 Rg1 Ree5 Rgf1 Bf2 Rg1 Rc5 Rf1 Rg3 h3 Rg6 Rg1 Bh4 Rgf1 Qg3 Rb1 Rgh6 Qcd4 Ka2 a3 Qe1 Qg4 Kb3 a2 Ka3 Qc4 Qgg1 Rd1 Rb1 a1B Rc1 Rb8 d8N Rd2 Nd3 Rd6 Bg7 Bc3 Nb2 Rf6 Ra1 Rf1 Ndf7 Rf8 Nd8 R8f6 Qef2 Rfd1 Qfe1 Rb1 Nc8+
1NrR2n1/2nB3r/2R1q3/k2bq1N1/n1Qp1r1B/5pP1/1RN2K2/QRQ1Q3 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 Kd2 h5 gxh5 g5 Ke1 g4 Bh3 g3 Nc3 Be7 Bf1 g2 Nb1 Bg5 Nh3 Bf4 Ng1 Bg3+ hxg3 Kf8 Nd2 Ke7 Nb1 Ke8 c4 f5 b4 a5 e4 d5 b6 Kd7 b7 Kc6 b5+ Kb6 h6 a4 h7 a3 c5+ Ka5 e6 f4 e5 f3 b6 a2 c6 d3 c7 d2+ Kf2 Na6 b8N Qh4 e7 Ra7 e8R Qg4 b7 Qd7 e6 Nc5 e7 Na4 Na3 Nf6 Rh6 Rg8 h8Q Rf8 Bb5 Qg4 Nc2 Be6 c8Q Ng8 Bd7 Rf4 Nh3 g1R Rb1 a1Q Qc4 Qe5 Ng5 d4 Rd8 Qh3 e8Q Bd5 Rc6 Qhe6 Qh6 Rh1 Ba3 Ra8 Be7 Rh3 Rb2 Rhh4 Qa1 d1N+ Kg1 Nc3 Kf2 Nb5 Bf6 Rhg4 Qhh1 Nc7 Qhc1 Rh4 Qe7 Rh7 Rb1 Qf7 Rb2 Qd6 Qee1+ Qb4 Na6 Ne7 b8R Be4 Ne6 Ng8 Rb1 Qg6 Qed2 Bd5 Bh4 Qc3 R8b3 Rc8 Ng5 Qe6 Nb8 Qb4 Qde2 Qbd6 R3b2 Qde5 Qee1+
B6r/7q/N2qnB1k/P1rNQ1r1/b4p1R/1q1Q3K/pbN5/1R2BBNQ b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Nc6 axb5 a4 f4 Na5 bxa5 exf4 Kf2 g5 Kg2 f5 e4 Kf7 d4 Kg7 h4 c5 d6 c4 h6+ Kg6 b6 g4 e5 a3 d5 g3 b7 c3 b8N c2 e6 f3+ Kh3 f4 d7 f2 h5+ Kg5 d6 a2 h7 g2 e7 Ba6 e8B Qc7 d8B+ Kh6 d7 Be7 Qd3 Bd6 Nc3 Ne7 Bd2 c1R Be1 Rd1 Nd5 Ba3 Rb1 Bb5 Na6 Ng6 Bf6 Ba4 d8N Rc1 Nc6 Rc5 Nd4 Bb2 Bc6 Nf8 Nc2 Qd6 Rh2 Ra7 Ba8 Ne6 Rh1 Rg7 Rh2 Rhg8 h8Q+ Rh7 Rh1 Rg5 Qe8 Rh8 Qb8 Qd7 Qe5 Qd6 Qg3 Kh7 h6 Kg6 h7 Kh6 Ne2 g1Q Qd3 Qb6 Rh2 Qh1 Ng1 Qe4 Rg2 Qd6 Rg3 Qg6 Bg2 f1Q Rg4 Qe2 Bf1 Qf5 Qb3 Qc4 Qd3 Rb8 h8Q+ Qh7 Qee4 Rbc8 Qh1 Qb3 Qe8 Rb8 Qb5 Rh8 Qe8 Nc7 Qe5 Ne6 Rh4+
1Qbn1q2/q6p/7n/B1PNQB1b/Nr5k/2N5/RqRpN3/R1Q1RK1n b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 f4 cxd4 h4 g4 e4 Bh6 e5 Ba6 f6 Bc8 f5 Bg5 hxg5 Qc7 Rh3 Kd8 Rh4 Ra6 f7 Rf6 exf6 Qb6 Kd2 Kc7 Rh1 Kd6 Ke1 Qd8 f8R Ke5 c4 d5 b4 g3 c5 e6 f7 a4 g6 Kf6 g7 e5 b6 d3 b7 g2 b5 e4 b6 d4 Nc3 e3 Nge2 Kg5 f6 g1Q Bd2 a3 Qc1 Nh6 g8N a2 Ne7 Qh2 Bh3 Kh4 Bf5 Nc6 b8Q Qe8 b7 Nd8 Rg8 Qf8 Rg2 Rg8 Qe5 Rg4 b8Q Rf4 Rb1 a1Q Ned5 Qa7 Ra1 Re4 Kf1 Rg4 Nb5 Re4 Bb4 d2 Nbc3 d1B Ba5 d3 Ra2 Rb4 Rhg1 Qe8 f8R Qef7 Re8 Qf8 f7 d2 Rg3 Qh1 Re7 Qe4 Re6 Qc2 Ra6 Qb2 Rf3 Qe8 f8N Qef7 Rfg3 Qe8 Nd7 Qf8 Nd4 Bf3 N7b6 Bh5 Nba4 e2+ Kf2 e1N Kf1 Nhf7 Nde2 Nd3 Re3 Nh6 Re4+ Ng4 Rc4 Nf2 Rb6 Nb7 Nb1 Qd4 Kg2 Nh6 Re1 Rb3 Kf1 Nd8 Rcc2 Nh1 Rb7 Qa1 Nbc3 Qb1 Ra1 Rb2 Rb3 Qa2 Ra3 Rb4 Qbc7 Qb3 R3a2 Qb2 Qb8
b2N1q2/q1pK3Q/3N2B1/k1N4R/3b1nR1/1B1PRn2/1p2nrQB/1bNR4 b - - 0 1 legal: proof: f4 g5 g4 b5 c4 d5 fxg5 f5 g6 f4 g7 a6 cxd5 f3 h4 Qd7 h5 Qd8 g5 a5 b4 axb4 exf3 Ba6 f4 Bc8 f5 Ra3 Bh3 Ra6 Bf1 Rg6 hxg6 Ba6 Qe2 Bb7 Qd1 Bc8 Kf2 Kd7 Ke3 h5 Kf4 h4 Ke5 h3 a4 b3 f6 e6 f7 b2 d6 Kc6 a5 h2 d7 b4 a6 Kb6 a7 b3 a8R Rh3 Qe2 Rf3 Qg2 Qe7 d8N Ba6 Na3 b1B Bd3 b2 Ne2 Ba2 Nb5 Nf6 g8Q Qe8 g7 Rf2 g6 Nd5 Nd6 Bb1 Qh7 Nf4 g8B Bb7 R8a3 Ba8 g7 Nc6+ Kf6 e5 Bg6 e4 Re3 Nd4 d3 Nf3 Kf5 Be7 f8N Bf6 Bb3 Bd4 g8R Ng1 Nfe6 Qf8+ N6f7 Kb5 Nc5 Nf3 Rd1 h1N Ra4 Kb6 Rh8 Kb5 Bd2 Kb6 Nc1 Ng3+ Kg4 Nge2 Kf5 Kb5 Rb4+ Ka5 Bc3 Nh3 Ke6 Nhf4+ Kd7 Ng3 Ree1 e3 Nd6 e2 Bd2 Bg7 Be3 Bc3 Re4 Bd4 Rg1 e1Q Re7 Nh3 Bf4 Ne2 Bh2 Nhf4 Re3 Qd2 Qg5 Qb4 Rg4 Qb6 Qd5 Qa7 Qc6 Nh4 Qg2 Nf3 Qe7 Ng5 Rh5 Nf3 Qh7
2NR1NK1/qp5n/q2B1b1q/1r4bB/1kRQ2B1/1b2RN1p/1n5P/2BR2Q1 b - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 g5 b4 axb4 f4 e5 dxe5 Ra7 fxg5 Ra8 Kd2 Kd7 Kd3 c5 Ke4 h5 Kf5 c4 a4 f6 Kg6 f5 Kf7 h4 e4 h3 g4 b3 d6 Kc6 d7 Kc5 a5 c3 a6 b2 e6 f4 g6 c2 e7 f3 e8R f2 g5 Qa5 d8B Be7 g7 Bd6 e5 Rh7 e6 Rh8 a7 Rh5 e7 Nf6 g8N Nbd7 g6 Ne4 g7 Qc3 Qd4+ Kc6 Na3 b1Q Nf3 Nd2 Nb5 Qe3 Nc7 Qb6 Ra5 Nc4 Be2 f1Q Ne6 Rb5 Bc7 Qh6 Nf8 Be5 Bd6 Bf6 Rd8 Qf2 e8B Nb2 Rd1 Qa6 Ra3 Rb8 a8R Qg1 Re3 Qf2 Qc4+ Kb6 Qh4 Ka5 Ne7 Qg1 g8Q Qf2 Nfg6 Nf8 Qd4 Nh7 Nf8 Bg4 Qg5 Rc8 Kg8 Rc4 Rac8 Be6+ Bf7 Qg1 Rc5 Kb4 Nc8 Bd5 Re5 Qe3 Qg1 Qea3 Re6 Qa7 Bh5 Q3a6 Bg5 c1B Be3 Bd2 Bg5 Bc3 Bc1 Bd2 Bg4 Bdg5 Bh5 Bc6 Re3 Be8 Ne1 Bg6 Beg4 Bc2 Nf3 Bb3 Rxc4+
N1R1Q3/pNNbQ3/qQ2r3/3B3q/pRNb2n1/P1Rr4/1K5B/3kRq1r b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 h5 g4 f5 exf5 Nf6 gxh5 Na6 a3 Nc5 b3 Na4 bxa4 bxa4 Qe2 Ng8 Qg4 Bd7 Qd1 Bc8 d4 Kf7 Kd2 Kf6 Kc2 e5 f4 g5 h4 c5 h6 c4 h7 e4 d6 g4 d5 g3 h5 g2 h6 c3 d7 e3 d6 e2 Nh3 e1Q Ng5 g1Q Nd2 Ba6 Bc4 Be7 Rh4 Qb8 d8Q Qbb6 d7 Qef1 Qe8 Qc6 d8N Bb7 Nge6 Qd4 Bd5 Qdc5 Nc4 Q5b6 Nc7 Rb8 Na8 Qd6 Qd4+ Qe5 Qe3 Qbd6 Qb6 Bc6 Nb7 Qde6 Bd2 Qh3 Re1 Bc5 Be3 Qc8 Bg1 Qf1 Bh2 Bd4 Kc1 c2 Rh3 Qg2 Rc3 Qf1 Kb2 c1R Qg6+ Ke7 f6+ Kd7 f5 Rd1 f7 Rd3 f8Q Nf6 Qfc5 Ng4 f6 Qh5 f7 Re8 h8R Re6 h7 Bb5 Nba5 Qa6 Rc8 Bc6 Nb7 Bb5 Rc6 Rh8 Rc8 Bc6 Qe4 Bb5 Qcc6+ Ke7 f8N Kf6 Qe8 Kg5 Qe5+ Kh4 Qg7 Bd7 Qge7+ Kh3 Bg1 Kg3 Bh2+ Kf2 Rb8 Re5 Ne6 Ree3 Nec7 Re6 Rb1 Ke2 Rc8 Rf8 h8R Rf7 Rf8 Rh7 Rf4 Rh8 Ka2 Rh6 Rb4 Kd1 Re4 Qhf5 Kb1 Rhh3 Kb2 Qh5 Bf4 Rh1 Bh2 Qa5 Re2 Qa6 Re1+
3Q1QnB/4R1K1/1r2Bn2/2rPRpbp/2rk1N2/1bb1N3/Q2n3N/Q1NB4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 axb3 e6 b4 exf5 b5 Bb7 Na3 Ba6 Nb1 Bc8 h4 f6 g4 Be6 g5 Bd7 gxf6 Bc8 Nc3 g5 Nb1 g4 Qc2 Qd7 Qa4 Qg7 Qd1 Qg5 hxg5 Kd8 Bh3 Kd7 Bf1 Ke8 Kf2 Kd7 Ke3 Kd6 Kd4 a5 b4 h5 e4 g3 b6 g2 b7 c6 b5 a4 e5+ Kc7 e6 Kb6 Ke5 Kc5 d4+ Kb4 d6 a3 d5 Kc5 f7 a2 g6 Bd7 g7 Be7 f8Q Ra5 b6 Rh6 Be2 Na6 b8Q Rg6 b7 Rf6 Na3 Rb5 Nc2 Nb4 Bb2 Rb6 Qa7 Nh6 g8B Bc8 b8Q Bd8 e7 Ba6 e8N Bc4 Ne3 Bb3 Be6 Nc2 d7+ Be7 d8N Ng8 Rb1 a1B Qa2 Rg6 Rh2 Rg4 Nf6 Rc4 Bc3 Bb2 Nfg4 Ba1 Bf3 Bb2 Ne2 g1N Nc1 Ba1 Nf1 Ne3 Re2 Bb2 Ngh2 Ba1 Bd7 Ng4+ Ke6 Bb2 Kf7 N4f6 Ne3 Ba1 Bg4 Nf3 Kg7 Nd2 Be6 Bb2 Be5 Bc3 Qg1 Ba5 Ba1 Bc3 Re1 Kd4 Bd1 c5 Rb2 Nde4 Rbe2 Nd2 Qba8 Rcb4 Bb2 c4 Qg5 R4b5 Qa1 Rc5 Q8a2 Rc8 Nf7 Rc5 Ne5 Bd6 Ned3 Bf4 Qg6 Bg5 Nf4 Ke4 Qge8 Kd4 Ba3 Bb2 Qb8 c3 Qbd8 c2 Bb4 Bc3 Ba3 Rc4 Bb2 Rb8 Neg4 Rb5 Re5 Rb6 Ne3 Rc5 Ncd3 c1R Re2 Rc2 Nc1 Rc4 Kg6 Nh7 Neg4 Rcb4 R5e3 Kc4 Qfe7 Bcf6 Qef8 Rc3 Bc8 R4b5 Re7 Rc5 Be6 Rc2 Bd4 Bg7 Bf2 Bb2 Bd4 Rc3 Bh8 Nhf6 Re5 Kd4 Ne3 R3c4 Kf7 Bc3 Kg7
Nr2qrb1/2RNQ1PB/2B2pr1/Q2B1nk1/4prr1/2BQ4/3KbR2/1QR5 b - - 0 1 legal: proof: h4 b5 a4 g5 axb5 c5 hxg5 c4 e3 c3 Ke2 cxd2 Nc3 e5 Kf3 d5 Nb1 d4 Kg3 d3 f4 e4 Kf2 Nc6 Qg4 Bd6 Qd1 Nd4 exd4 Be5 fxe5 Bb7 Ra4 Ba6 Ra1 Bc8 Ke3 Ke7 b4 a5 g4 h5 c4 a4 e6 a3 g6 Kf6 g5+ Kf5 c5 f6 e7 h4 e8B h3 b6 a2 b7 h2 b8Q Ba6 g7 Ra7 c6 Rc7 d5 Bb7 b5 Re7 d6 Re6 b6 Ba8 c7 Bc6 c8R Bb7 g6 Rh6 d7 Rh8 Qa7 Kg5 Bb2 Bc6 b7 Kf5 b8Q Rh7 Nf3 Re5 Na3 Rb5 Rc1 a1R Bc3 Ne7 g8B Rf7 g7 Bd5 Rc7 Rf8 Ne5 Kg5 Bh7 Bg8 Nac4 Rab1 Qf3 d1R Qa5 d2 Nb6 Nf5+ Ke2 Qe7 d8Q Qf7 Bd7 Qe8 Qd3 Rd5 Bh3 Rg1 Qe7 d1B+ Kd2 Be2 Bc6 Rg4 Rhf1 h1R Ned7 Rhg1 Rf2 Rf4 Na8 Rgg4 Qc8 Rb8 Qb7 Rg3 Bg4 Re5 Bh5 Rgg4 Bf7 Rb5 Bfd5 Rb1 Rc2 Rh1 Qbb5 Rh6 Qb1 Rg6 Rc1
4R2n/R1Q1pr2/1QBP1r1B/2r1N3/3r4/k2N1b2/1NR2Q1p/1KNrq1Qn b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 b4 Kd7 d4 Kd6 Kd2 a5 Kc2 h5 g7 c5 f6 a4 g6 a3 f7 a2 f8Q f3 b6 h4 b7 c4 b5 f2 b6 h3 Ne2 c3 Nd2 h2 Bg2 f1R Qf2 Ra4 Nc4+ Kd7 d6 Ra5 d5 Ra6 Qdd4 Nh6 g8Q Qf8 g7 Ng4 Bh6 Nc6 b8Q Bb7 Nc1 Nce5 Nb2 Nf7 Qb4 Ba8 b7 Rh7 Qbc5 Ra4 Qb6 Rd4 Bf3 Nh8 Q8c7+ Ke8 b8N Bb7 Qg2 Nf2 Nd7 Bc6 Rg1 Nh1 Ne5 Ba8 Be4 Rf6 Qf2 Bc6 Rg2 Bb7 Rb1 a1R Ned3 Ra5 Bf3 Rc5 Ra1 Ba8 Ra7 Bc6 Kb1 c2+ Ka2 Ba8 Qe6 Qg8 Qee3 Qe6 g8R+ Kf7 Qg5 Qe1 d7 Bc6 d6 Ke6 Rf8 Rhf7 Re8 Ba8 Bc6 Bb7 Nb3 c1R Qg8 Rd1 Nbc1 Ba8 Kb1 Bb7 Qgg3 Ba8 Qg1 Bb7 Rc2 Ba8 Bg2 Bf3 d8N+ Kd5 Nc6 Rg7 Na4 Rh7 Q3f2 Rhf7 Rd2 Kc4 Nab2+ Kc3 Nce5 Be2 Bc6 Bh5 Bb5 Bf3 Nf4 Kb4 Rc2 Rdc4 Ba4+ Ka3 Nfd3 Rd4 Bc6+
3QQ1r1/PQn2n1R/1rBpN1B1/3B4/N3n1R1/K7/Qp1kbN2/3nBq1n b - - 0 1 illegal: No possible last move
BB6/1kN1bQ2/RqrP1nQ1/4r3/1Q2r1np/nN5N/1Rp1B1K1/4BQ1r b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 Kf2 Kd7 a4 Kc8 d4 c5 d6 h5 g7 b5 a5 e5 d7+ Kc7 f6 c4 f7 h4 g6 c3 g5 e4 d5 c2 a6 e3+ Kg2 e2 d6+ Kc6 a7 e1R Be2 b3 Nd2 b2 Ra6+ Kb7 Nb3 b1N Bd2 b4 Nh3 Ne7 g8Q Qb6 d8B Nf5 g7 Rh6 g6 Qc5 Bc7 Be7 f8N Qb6 Qf7 Rh5 g8Q Nd7 g7 Nh6 Bb8 Na3 Ne6 Nf6 Nc7 Nhg4 Qge8 Re5 g8Q Re4 Qgg6 Re5 Qa4 Re4 Na1 b3 Qb4 b2 Nb3 b1R Rf1 Re5 Rf5 Rh1 Qf1 Rd1 Be1 Rd4 Rf4 Rc4 Rd4 Rc3 Rd1 Rc6 Rb1 Re4 Rb2 Re5 Ne6 Re4 Bc7 Rh8 Bb8 Rh5 Nc7 Rhe5 a8B+
2KRBR2/1n2N1Q1/2p5/NP1RNnQB/1b2q3/2Rb1np1/1kn5/NQ1rb3 b - - 0 1 illegal: No possible last move
2bb4/1Q2pRn1/5B2/B2nr1QN/3p2RQ/4B1bB/K2PQ3/b1k1qnNR b - - 0 1 legal: proof: e4 c5 g4 f5 exf5 a5 a4 b5 axb5 h5 b4 hxg4 bxc5 Ra6 bxa6 Rh3 Ra2 Rh4 Ra1 Rh8 c4 Kf7 f4 Kf6 h4 g5 c6 d5 h5 g3 h6 d4 a7 a4 a8Q a3 c5 g4 h7 a2 c7 g2 c6 g3 Nc3 Qd6 Bb2 Bh6 Qa5 Qb4 Qe2 Qb3 Ne4+ Kg7 f6+ Kg6 f7 Qa3 Kd1 Nd7 Kc2 Nf8 Bc3 Qc1+ Kb3 Qe1 Nf6 Ne6 f8R Ng7 Nh5 Nf6 Rf7 Nd5 f5+ Kg5 f6 Kf5 Qc5 Bf4 Ba5 Be5 Rc1 a1B Ka2 Rf8 h8B Bf4 Qg4+ Ke4 Qh4 Rd8 Rc3 Rd6 Qc4 Re6 Qb5 Re5 Rf3 Bf5 c8Q Bd7 Qcb7 Bc8 Ne2 g1N c7 g2 Rg3 Nf3 Rg4 g1B Bh3 Be3 Ng1 Nh2 Qe2 Nf1 Qbb5 Kf5 Qc5 Bf2 Qcb5 B2g3 Qc5 Be6 c8Q Bd7 Qb7 Bc8 Qf2 Ke4 Qh2 Kd3 Qf2 Bc3 Qe2+ Kc2 Qcb5 Ne6 Qc5 Kc1 Bg7 Rf5 Bh6 Bc7 Be3 Nb6 Qe5 Ba1 Qf4 Nd5 Qfg5 Re5 Rh7 Nc5 f7 Bd8 f8B Ne6 Bg7 Bc7 Bf6 Bd8 Rf7 Ng7 Qa8 Kc2 Qb8 Kc1 Qb7
3Nb2B/3B2R1/K2B2N1/1r2Q2q/RBQ1nnq1/3Q3p/P5np/k1nr2QN b - - 0 1 legal: proof: e4 d5 h4 a5 c4 g5 cxd5 gxh4 b4 f5 exf5 Bg7 bxa5 b5 Qb3 Bd4 Qd1 Bb6 axb6 Kf8 Qa4 Kf7 Qd1 Ke8 Ke2 Kf7 Kd3 Kf6 f4 h5 g4 e5 b7 c5 g5+ Kf7 f6 h3 d6 Ke6 g6 Kd5 f5 h2 g7 b4 f7 h4 f8B b3 f6 b2 d7 Nc6 b8Q Bb7 f7 Ra5 Nc3+ Ke6 Kc4 b1Q d4 Qe8 d8Q Qg6 Bd6 Nf6 f8B Nb4 Bh3+ Qg4 Bb2 Qh5 Ne4 Nbd5 Ng3 Ne4 N1e2 Bc6 Qg1 Rb5 Rb1 Be8 g8Q+ Bf7 Ba1 Nf4 Rb4 Rh6 Qbc7 Rh7 Qh8 Be8 Ra4 Rd7 Qcc8 Nf6 Bfe7 e4 Qcc7 e3 d5+ Kf7 Bc3 Ne4 Qe5 Kg6 Bf6 Kf7 Bh8 Kg6 Nd4 e2 Nc6 e1N Bb4 Neg2 Qcc8 Kf7 Qa6 Kg6 Ne7+ Kf7 Qc7 Rd8 Ng6+ Rd7 Kb3 c4+ Ka3 c3 Qc4 c2 Qd3 Rb8 Qac4 Rb5 Kb3 Qd1 Bf5 h3 Ka3 Rd8 Bd7 Qdg4 Kb3 Nd2+ Kc3 c1N Kd4 Rbb8 Kc5 Ne4+ Kc6 Rb7 Bc7 Rb5 d6+ Rd5 Kb6 Rb8+ Ka6 Rb5 Qcc3 Rd4 Bc8 Rdd5 d7 Rd4 Bcd6 Rdd5 Qg7+ Ke6 Qcc2 Rd4 d8N+ Kd5 Bf5 Qd1 Bd7 Qdg4 Qdf1 Rd3 Qcd1 Kc4 Qe5 Nce2 Qb1 Rd1 Qc1+ Kd3 Qce3+ Kc2 Qd3+ Kc1 Qc4+ Kb1 Qf3 Nd4 Qfd3+ Kb2 Qf2+ Ka1 Rg1 Nc3 Nh1 Nb3 Rf1 Nc1 Qg1 Ne6 Rf7 Nef4 Bdc5 Rb7 Rg7 Rb5 Qef5 Ne4 Bd6 Nce2 Qfd5 Nc1 Qe5+
3q1b2/Q1qR1NQN/QB3b2/Kn1n1rn1/B2PR2Q/p3RRp1/6kN/1n6 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qb3 a5 Qc2 Bf5 gxf5 g4 Qb3 g3 Qd1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qd7 Qa4 Qc8 Qd1 Qd8 e4 Kf7 b4 Kf6 b6 Kg5 b5 c5 b7 h5 f6 c4 e5 a4 b6 c3 e6 h4 f7 h3 d6 Kh4 g5 a3 e7 h2 e8R c2 g6 Rh6 g7 Nd7 b8R Rh5 b7 Nb6 d7 Qf6 d8Q Bb4 f8N Bd6 Bb5 Rd5 Nh7 Rc5 Re4 Ne7 g8Q Qf7 Qg7 Nd5 Qe2 Nc3 Nh3 Rf5 Ba4 Nb5 N3g5 Nd5 Rf1 Qc7 Nf7+ Kh3 d4 h1N Kd2 f2 Qh4+ Kg2 Rd8 f3 b8Q Bf8 Rd7 Qd8 Qa7 Qc7 Bb2 c1B+ Kd3 Bh6 Nd2 Bg5 Bc3 Bf6 Ba5 Qd8 Bb6 Qc7 Qd1 Qd8 Rfe1 f1Q+ Qe2+ f2 Kc4 Qg1 Qd3 f1N R1e3 Nf2 Nf3 Nh3 Nh2 Ng5 Rc1 Qf2 Rc3 Qf4 Rf3 Qfc7+ Kb3 Ne7 Kb4 Nd2 Ka5 Nd5 Qc4 Nb1 Rce3 Qb7 Qc8 Qbc7 Qca6
r2q3Q/1Nqn1Qb1/1Br4B/b4N1Q/1p1RB1Kb/2b4N/4pP1k/1R2NB2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 f5 b4 fxe4 bxa5 g5 g4 Bf5 gxf5 Nd7 h3 Ne5 h4 g4 Rh3 Nf7 Rh1 Ng5 hxg5 Qc8 Ne2 Qb8 Ng1 Qd8 Ke2 Kf7 a4 e5 d4 c5 d6 h5 d7 b5 f6 Kg6 f7 Kf5 d5 h4 g6 h3 d6 b4 a6 h2 a7 c4 g7 c3 a5 c2 a6 e3 Qd5 g3 Kf3 e2 Nd2 e1B Nh3 g2 Rb1 Nf6 g8N Bg7 f8Q Rh6 Qff7 Qc7 Rg1 h1Q d8B Qh2 Rh1 g1B d7 Qb8 Bb6 Qd8 Nf4 Kg5 Ne7 Kh4 Nh3 Rg6 Nb3 Rh6 Nc5 Bc3 Nd3 Rg6 Bce3 c1B Bh6 Bg5 Ne1 e4+ Ke2 e3 Kf3 e2 Nf5+ Kh5 Rd1 Qhb8 Rd4 Bh4 Qe5 Qdc7 d8N Bh2 Nb7 Nd7 Rg1 Qbd8 Qb5 Rb8 a8Q Rc8 a7 B2g3 Ke4 Kg4 Qb8 Rc6 a8B Qd6 Rh1 Qc5 Qe5 Bf4 Qee8 Bc7 Qh8 Rb8 Ba7 Ba5 Bb6 Qce7+ Qe5 Rc4 Nf4 Bf8 Bg2 Bg3 Nf3 Ba1 Nfd6 Rc5 Rb1 Qc7 Nd8 Bb2 Ne1 Bh4 Bf1 Bc3 Bc6 Ra8 N8b7 Qf6 Ke3 Qfd8 Be4 Rc6 Qb5 Bg3 Qbd5 Kh4 Kf3 Bg7 Nfg2+ Kh3 Nf4+ Kh2 Nh3 Bf4 Qdh5 Bg3 Nf5 Bh4 Kg4
N1N2Qk1/b1q2nr1/1N1qB1P1/Q2n1pn1/R7/b1R1BNp1/6KB/1Q1n3B b - - 0 1 legal: proof: f4 d5 a4 b5 axb5 f5 c4 a6 cxd5 e5 g4 exf4 g5 Be6 Nh3 Bd7 Ng1 Bc8 h3 a5 Ra3 Be6 Re3 Ra6 Rc3 Bf7 Rb3 Rf6 gxf6 g5 Rb4 g4 Ra4 g3 Ra2 Bh5 Ra1 Bg4 hxg4 Bb4 Ra2 Bd6 Ra1 Bf8 e4 Kf7 d4 c5 b4 h5 e5 c4 b6 h4 d6 h3 g5 f3 d7 a4 e6+ Kg6 b7 Kh7 b5 c3 f7 c2 e7 a3 e8B a2 d5 h2 d6 Qc7 d8N Be7 f8Q Qc4 b6 Qb3 d7 Qd3 Bf7 Bd6 Ne6 Ba3 d8Q Qe4+ Be3 c1Q Nd2 Nc6 b8B Nh6 b7 Bc5 Nc4 Qa3 Nd6 Nd4 Bg2 f2+ Kf1 Qb2 Qb1 Nf3 Nc8 Qee5 Qfe7 Qc7 Ba7 Qd2 b8N Qdd6 Nd7 Ba3 Ndb6 Rg8 g6+ Kh8 Qd3 Ng5 Qb1 Re8 Bf3 Rg8 Kg2 f1N Bd5 Qb4 Nf3 Qbd6 Rg1 h1N Ba8 Nf2 Rh1 Qcd7 Nc7 Nd1 Be6 Q7c6 Rg1 Nhf7 Bb7 Qc1 Nca8 Qc3 Qdc7 Rg7 Qc5 Qc4 Qa5 Kg8 Rh1 Qc1 Bg1 Qcc7 Bh2 Nd2 Re1 Nde4 Re3 Nf6 Rc3 Nd5 Nd7 Nh3 Be3 Ng5 Ndb6 Bb2 Ng1 Nf4+ Kf1 Bc1 Bh1 Nd5 Kg2 Bb2 Nf3 Bc1 Ra3 Bb2 Qd3 Bc1 Ra4 Bb2 Rc1 Ba3 Qb1 a1B Nd7 Bd4 Rc3 Ba7 Ndb6 Qf4 Rd3 Qb4 Rc3 Qbd6 Qf8+
N1r4R/kBR2Bqr/2p1n3/2r1P3/BQpn1RQB/2N3KQ/1b3r2/2q1Q3 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 b5 axb5 e5 fxe5 f5 h3 g5 g3 f4 gxf4 Bg4 f5 Bh5 Qa4 g4 Qb3 g3 Qd1 Bg4 hxg4 Be7 Rh4 Bd6 Rh1 Bf8 e4 Kd7 b4 Kc8 d4 Kb7 d5 a5 b6 h5 d6 g2 Kf2 a4 b5 h4 e6 a3 f6 h3 d7 a2 e5 h2 e7 Bh6 e8B Na6 g5 Qc8 d8Q Qb8 f7 Qa7 f8R Nb8 g6 Qa4 g7 Qa3 Q8d7 Qa4 Kg3 Ra6 Nc3 Ne7 g8B Nbc6 Nh3 g1R+ Bg2 Qa3 Q1g4 Qb2 Nf4 Qb1 Ne6 Bg5 Rf4 Ng6 Bgf7 Nf8 Ba3 Rf1 Be7 Ka8 b7+ Ka7 Bf6 Bh6 Bh4 Ra5 Bf3 Nd4 b6+ Ka6 b8Q Rc5 b7 Qg6 Qbd8 Rf2 b8Q Qg7 Qb4 Ka7 Bb7 Rh7 Rab1 a1Q Q7c8 Qb2 Ba4 c6 Nc7 Nfe6 Na8 Qc1 Qd5 Rh8 Qe4 Rg8 Qd7 Rc8 Qe1 Bg5 Rg1 h1R Qh3 Nc7 Qdg4 Nce6 Rg2 Bd8 Rh2 Ba5 Qb3 Bb4 Rb2 Ba3 Qb4 Nb5 Rd2 Bb2 Rd8 Nbd4 Rh8 Rff1 Rd2 Rf2 Rd1 Nc2 Rd7 Ncd4 Rc7 Rhh2 Bg5 Rh1 Qh7 Rh5 Bh4 Rh6 Qd3 Rh5 Qdf1 Rh7 Qh3
B4rnb/nBb2p2/K1NNn3/pR2R3/P3Q3/2qQ1QQ1/4nRBq/1B5k b - - 0 1 illegal: No possible last move, all moves rejected
3B4/1R3pQq/3BP2b/1B1r1Q2/Bq5q/R2qnK1Q/rpb1N1R1/2k2Q1N b - - 0 1 illegal: No possible last move
1R2q3/3pkn1B/1n3qPQ/bK2B1Qr/p4Q1R/N1r1N1q1/5qB1/N2Q1B2 b - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 e5 Kd3 h5 Kc4 a5 b4 d3 g7 h4 g6 d2 g5 h3 b6 h2 b5 a4 b7 e4 b6 e3 f6 e2 f7+ Ke7 Na3 e1Q Nh3 Nc6 b8Q Nb4 b7 Na6 Nf4 Qe8 Nd5+ Ke6 Rb1 Qe7 Kb5 Rh6 c4 Rh5 c5 Rh4 c6 Rg4 c7 Rg3 c8B Qe5 Bb2 Nh6 g8B Ra7 g7 Rc3 Bh7 Qg3 g8Q Nb4 Ne3 Nd5 Qf4 Nb6 b8N Qf6 Bb7 Bb4 f8Q+ Nf7 Bbg2 Ba5 Qh6 Ke7 Na6 Ra8 Qgg7 Rh8 Nb4 Qf2 Nbc2 Qg3 Qe1 d1Q Na1 Qdf3 Qd1 Qa8 g6 Qe8 Qhg5 Qf2 Bg8 Rh5 Qh6 Rc6 Bd4 Rc3 Be5 Qg3 Bh7 Qf2 Rg1 h1Q Rb4 Qhh4 Rh1 Qhg3 Rh4 Ke6 Rc4 Ke7 Rc8 Nc4 Rd8 Nb6 Rb8
2B4b/4pR1R/Qr1rn3/R1Nbk1BN/3n2Q1/1r1NPpnK/2r1N3/1R2Q3 b - - 0 1 legal: proof: c4 a5 b4 g5 a4 b5 axb5 d5 cxd5 Nh6 f4 Ng8 fxg5 Qd7 Ra3 Qd6 Ra1 Qd8 h4 axb4 g4 Qd7 g6 Ra6 h5 Rd6 g5 Qe6 g7 Qg6 hxg6 Ra6 Rh3 Ra5 Rh1 Ra8 Kf2 Kd7 Kg3 Kd6 d4 f5 b6 c5 b7 h5 Nh3 b3 Ra5 b2 Nf2 h4+ Kh3 c4 Nd3 c3 Qe1 c2 Nc3 Nc6 b8R Nh6 g8Q b1R g7 f4+ Qe6+ Kc7 g8Q f3 d6+ Kd8 d7 Kc7 d8N Nf5 d5 Rb6 g6 Ng7 Nb7 Rh5 Nbc5 Bb7 Bg5 c1R e3 Rh6 Ne2 Nd4 d6+ Kc6 Qa2 Nge6 g7 Rc2 d7 Kd6 Qa4 Bd5 d8R+ Kc7 Rdc8+ Kd6 Qb5 Ra7 Qa6 Rc7 Re8 Rcc6 Rh2 Rb3 Rb4 Rb6 Rb8 Nc6 Rf4 Ncd4 Rf7 Rg6 Qh7 Rh6 g8N Bg7 Qf5 Bh8 Nf6 Rg6 Nh5 Rf6 Kg4 h3 Kh4 Rg6 Qg4 Rh6 Rh1 h2 Kh3 Rg6 Rbf8 Rh6 Rh7 Rg6 Rg1 h1N Rff7 Ng3 Bg2 Bg7 Qc3 Rf6 Rb1 Bh8 Qe1 Ng7 Qh4 Ne8 Kh2 Ng7 Bh3 Rh6 Bc8 Rg6 Ndf4 Ke5 Kh3 Rgd6 Qg4 Nge6 Nfd3+
2RB3Q/5N2/3qq1nr/bB2RnN1/3nP1QB/1B2Qp1p/1K1Q2R1/3q2nk b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qb3 a5 Qc2 Bf5 gxf5 g4 Qb3 g3 Qd1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qd7 Qa4 Qc8 Qd1 Qd8 d4 Kf7 Kd2 Kf6 Kc3 Kg5 b4 c5 e4 h5 f6 g2 f7 c4 d6 a4 d7 f2 b6 h4 b7 h3 d5 Kh4 g5 Kg3 b5 a3 d6 a2 g6 Qa5+ Kb2 Rh7 d8Q Bh6 f8R Na6 b8Q Nf6 b6 Bg5 b7 Nd7 g7 Ne5 g8B Qd5 d7 Rh6 Na3 Nb4 Qa7 Qe6 b8Q Nc2 Nf3 g1N Rh2 Ng6 Nb5 Nd4 Nd6 Nf5 Rb1 a1N Qe3 Nb3 Nf7 Nbd4 Qdd2 Bf6 Qdc8 Bd8 Qa8 Bc7 d8B Ba5 N3g5+ f3 Be2 f1Q Rg2+ Kh4 Qab8 Qd1 Qe5 Qd6 Qh8 Qe6 Re8 Qd6 Re5 c3+ Ka1 c2 Bb5 Qe6 Ba3 c1Q Bae7 Qcc4 Rc1 Qd6 Kb2 Qcd5 Qd7 Q5e6 Rc8 Qf1 Re2 Kg3 Bf6 Qf2 Bfe7 Kg2 Bf6 Kh1 Bfe7 Qe1 Rg2 Qd1 Bf6 Qee7 Qe6 Nfh4 Qg4 Qed7 Ne6 Nhf5 Bh4 Qe8 Neg5 Qee6 Qde1 Qdd5 Q1d2 Qf6 Nd6 Qc6 Bd5 Qe6 Ndf7 Qcd6 Bb3
Q2n2qB/3qN1q1/1KRR2Qb/2pNR3/1N6/NBk2p1q/rRr1B1P1/2r5 b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 b5 h4 gxh4 a4 e4 axb5 Bf5 c4 Bg4 d6 Nc6 c5 Ne5 fxe5 Kd7 c6+ Ke6 d5+ Kf5 Kd2 Kg6 Ke1 Bd7 cxd7 Qe8 Ne2 Qc8 Ng1 Qd8 Ke2 Kf5 Ke3 a5 Kd4 h5 Kc5 f6 b4 h3 b6 h4 e6 Ke5 e7 e3 e8B a4 b7 h2 b8Q f5 b5 h3 b6 f4 b7 f3 Be2 a3 Qd3 c6 Qg6 a2 Bf7 Nf6 Na3 Ng8 Bb2+ Kf4 Rc1 a1Q Bg7 Ra6 Qa8 Ne7 b8R Rh7 Bd4 Bh6 Bh8 Qg8 d8R Qag7 d7 Ke5 d6 Ra4 Kb6 Kd4 Re1 Kc3 Bb3 c5 Rdc8 Nc6 d8N Rf4 d7 Rc4 Nf7 Nd8 Ne5 Rh4 Nd3 Rc4 Bed1 e2 Nb4 Re4 Rc6 Rc4 Rf1 e1Q Be2 Qd1 Re1 Kd4 Rb7 Rc2 Rd6+ Kc3 Rb8 Nb7 d8N Qdd5 Ndc6 Nd8 Rc8 Qdd4 Rc7 Qd7 Ne7 Rf7 Rd1 Qdg7 R1d5 Rf4 Rh5 Rd4 Re5 Rdd2 Rcc6 Ra2 Bec4 Rdc2 Ne2+ Kb2 Ra1 h1R Rg1 h2 Nf4 Kc3 Rb1 Rhc1 Be2 h1Q Rb2 Qhh3 Nfd5+
Q5b1/n7/Q3qpp1/4qq1B/1bQRN1N1/q1QrR3/1R2BPN1/b1k2N1K b - - 0 1 illegal: No possible last move, all moves rejected
6q1/1Np2bNn/Bk3N1R/rpRrr3/2Q4B/1r1PR1q1/3qBR2/B4K1Q b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 Bd7 h4 Bh6 e5 Bg5 hxg5 Bc8 Kf2 Nd7 Ke1 Ndf6 exf6 Kf7 Bb2 Kf8 Bc1 Ke8 a4 Kd7 f7 e5 f8B b5 g6 h5 f6 h4 f5 e4 d6 Kc6 d3 e3 d7 h3 f7 e2 f6 g3 a5 h2 g7 g2 a6 b3 a7 b2 Nc3 b1R Nd5 Qe7 d8N+ Kc5 Nf3 g1Q Nb7+ Kc6 Bg5 Qb6 Nh4 Qe5 Nf5 Rb3 Rc1+ Qc5 Bh4 Rb8 a8B Ne7 g8Q Qc4 Bg7 Rh5 f8R Ng6 f7 Be6 Nf6 Rd8 Re8 Rd5 f8R Bf7 Kf2 e1R Be2 Kb6 Bh8 Qcc3 Ng7 Qd2 Rc5 Qef4+ Kg2 Rhe5 Qc1 Rd1 Qc4 Rc1 Qh7 Ra1 Qh5 Ra4 Qf3 Ra5 Kf1 Qg3 Re7 Rg5 Re3 Rgf5 Rg1 Rfe5 Qh1 Rd4 Rg2 Rdd5 Rc8 Nf8 Rf2 Nh7 Re8 Ka6 Re6+ Ka7 Nd6 Kb6 Bb7 Rf5 Ba6 Rfe5 Qg1 h1Q Nb7+ Ka7 Rd6 Qe4 Qh1 Qeg6 Ng4 Qg5 Rh6 Qd8 Nf6 Kb6 Qh2 Qa8 Qh1 Qg8 Nge8 Re4 Nd7+ Ka7 Ba1 Ree5 Ndf6 Kb6 Ng7
K2b1Rq1/b1R3B1/r1PRBrp1/6NQ/2rNQ3/1NB2bpb/N3Bk2/5b2 b - - 0 1 legal: proof: g4 c5 e4 h5 a4 hxg4 d4 b5 axb5 e5 dxc5 d5 Kd2 d4 Ke1 Nf6 f4 Nd5 exd5 e4 Kd2 Nd7 Ke1 Ne5 fxe5 Ke7 Ra2 Kd7 Ra1 Ke8 Ke2 Kd7 c4 f5 h4 a5 b4 f4 c6+ Ke7 c7 e3 Kd3 g3 Ke4 d3 d6+ Ke6 b6 g6 b5 a4 b7 a3 b8N d2 h5 e2 c5 e1B b6 f3 b7 a2 d7 f2 h6 Rh7 Na6 Qe8 b8R Qf7 d8N+ Kd7 e6+ Ke7 Kd5 Kf6 Kc6 Kg5 e7 Kf4 e8Q Bd6 Ne2+ Kf3 Ne6 Bf8 Ng5+ Kg4 Bb2 Qe7 Nbc3 Qg7 Nd4+ Kf4 Qh5 d1B Be2 f1B Rc1 a1R Na2 Rb1 Bc3 Rh8 h7 Bch3 c8B Qg8 Be6 Ke3 Rc2 Rc1 Kb7 Bg7 c6 Bh6 Rd2 Bf2 Nc5 Ra6 Ncb3 Bg1 Rc8 Kf2 Rc7 Bf8 Rd3 Be7 Rd2 Bd8 Rh2+ Ke1 Rf2 Rc2 Rf8 Rc1 Nb5 Ba7 Ka8 Rc2 Bg7 Rc3 Rd6 Rc4 Bd3 Bf3 Be2 Kf2 Bc3 Qg7 N5d4 Rg8 h8B Qh7 Rf4 Rf8 Bg7 Qg8 Qe7 Rf5 Qe8 Rfa5 Rf8 Rf5 Bf7 Rf4 Qe4 Rf6 Be6
1N4K1/2p4Q/2np1qP1/N2Q3R/Q1b1RbB1/6Bb/B2q1k2/1BnQb1qR b - - 0 1 legal: proof: d4 h5 h4 g5 hxg5 a5 c4 b5 cxb5 e5 e4 Bd6 f4 exf4 a4 Bb7 b4 Ke7 b6 Rh7 e5 Bf3 b5 Bb7 d5 Bc8 b7 Ke8 Qd2 Rh6 Qd1 Re6 dxe6 Ra6 Qe2 Rc6 Qd1 Rc5 b6 Rb5 axb5 a4 Qd5 Be7 Qd1 Bf8 Kf2 Ke7 Kf3 f5 g4 d6 g6 a3 g5 h4 g7 h3 g6 h2 Nd2 a2 Nb3 Nf6 g8B Nh5 Na5 Bh6 Ne2 Bg7 Nd4 Na6 b8Q Nf6 b7 Bh6 b6 Qe8 Bd3 Bg5 Bb1 Qd8 Qa8 Ne4 b8R Nec5 Qd5 Nb4 b7 Nb3 Bd2 Nc1 Ndc6+ Ke8 e7 Kd7 Re1 Qe8 Re4 h1Q+ Kf2 f3 Kg3 f2 Bf4 f1B Ra8 Qd8 b8Q Qh7 Ra7 Bh6 Kh4 Bc4 Bh2 f4 Kh5 f3 Qb7 f2 Nb8+ Ke8 Be6 f1Q Bg4 Qg1 Qbb5+ Nc6 Qba4 Qh8 Rb7 Qf6 Rb5 Be3 Rc5 Bf2 Kh6 Be1 Kh7 Qff2 Kh8 Qd2 Kg8 Bf5 Na6 Kd7+ e8B+ Ke7 e6 Kf6 e7 Kg5 Nb8 Kh4 Rb5 Qd7 Rc5 Qe6+ Bf7 Qf6 e8Q Bd7 Qe7 Bf5 Be2+ Kh3 Bg4+ Kg2 Rb5 Bc8 Bfe6 Kf2 Qh7 Bd7 Rb3 Bc8 Rh3 Bd7 Rh5 Bc8 Bd3 Bd7 Rb1 a1B Bc2 Bb2 Ra1 Be5 Bb1 Bc8 Bc2 Qg2 Bf3 Nb3 Qb1 B4a6 Qdb5 Bf4 Bc4 Qg3 Qd5 Bh3 Bg4 Qg2 B2d3 Qf1 Qc2 Bb5 Rd1 Nc1 Ba2 Bc4 Qcb3 Qdb2 Bdb1 Bb4 Qd3 Qh1 Rg1 Be1 Qdd1 Qg2 Rh1 Qg1 Bb3 Qbd4 B3a2 Qd2 Bg3+
NR5N/1Qn2QQp/N1pR3q/1Br1b3/3n1p1B/r1rP4/B2kbB1K/4Q3 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 exf4 a4 d5 axb5 Ba3 c4 Be7 cxd5 Bf8 Kf2 Kd7 e4 Kd6 g4 Kc5 Kg2 Kd4 b6 f5 g6 f3+ Kh2 f2 d6 f4 b7 c6 a6 Qb6 g7 Bf5 e5 Ke4 e6 Qc5 g5 Qc3 e7 Qd3 e8Q+ Be7 a7 Qb3 g6 Qf3 d7 Qg4 d8B Bc8 Na3 Qg5 Nh3 Qb5 Rb1 Nf6 g8B Qb6 g7 Qc5 Nc2 Nfd7 Ba2 Qd6 g8Q Ne5 Bb5 f1R Qef7 Na6 b8Q Bg4 Nb4 Be2 Qgg7 Rf3 Qe1 Rf8 Qb7 Nc7 Na6 Rc3 d3+ Kf3 Ba3 Ke3 Ng5 Bf6 Rb4 Qe6 Rd4 Rg8 Bc5 Re8 Bde7 Red8 Bb6 Rd5 Bd8 Rdc5 Rd6 Nc4 Rg1 Na5 Rf1 Be5 Rf2 Rc8 a8N Nb3 Qh5 Qg6 Ba4 Rb8 Qa7 Qh6 Nf7 Rb7 Bh4 Rb8 Qb1 Bf1 Rb2 Be2 Nh8 Rb7 Qa1 Rb8 Rb1 Kd2 Qhf7 Rd5 Bf2 Nd4 Rb4 Rbb5 Qh1 Ra5 Rb8 Rdc5 Bb5 Ra4 Qb7 Raa3 Qe1+
2kbB3/1ppnbRK1/8/1Q1n2R1/3pN2R/5PrQ/1QbQ1n2/1qB1NNR1 b - - 0 1 legal: proof: c4 a5 e4 h5 g4 d5 gxh5 f5 exf5 e5 b4 axb4 d4 Ra5 dxe5 d4 Qa4+ Bd7 Qd1 Rd5 cxd5 Bc8 Ke2 Kd7 Kd3 g5 Ke4 b3 h4 g4 a4 g3 f6 g2 Kf5 b2 Kg6 Bd6 e6+ Ke8 f7+ Ke7 f8R Bh2 a5 Qd6 a6 Rh6+ Kg7 Qc6 a7 Qb5 a8Q Qe8 d6+ Kd8 d7 Bd6 Ra5 Nf6 Nf3 g1B Nbd2 b1N Ne1 Bg3 f3 Ng8 Rg5 Rf6 h6 Na3 h5 Be3 h7 Nc6 h8Q Bh4 h6 Rf5 h7 Nb5 Qa2 Nge7 Qb2 Nd6 Rhg1 Ne4 Bb5 Nd5 Rf7 Nb8 Nf1 Nf2 Qdd2 Bf4 Qf8 Bd6 h8R Ba3 Qfb4 Rf6 Qa4 Be7 Bc6 Rf4 Qab5 Rg4 Rh7 Bg3 Rh6 Bf4 Rh4 Rg3 Rf6 Qh5 Rf7 Qg6+ Kh8 Bf8 Rgg4 B4d6 Rg5 Qc2 Kg8 Ba3 Kh8 Bfb4 Kg7 Qb1 Rff4 Ke7 Rf7+ Kd6 d8N Bc5 e7 Bf5 Ne6 Bc2 Qbd3 Bcb4 Qf5 Bc5 Bb5 Bab4 Qh3 Ba3 Be2 Kd7 Bb5+ Kc8 Bc6 Bd6 Nc5+ Bf5 Rgg4 Bc2 Ba4 Bf4 Bb5 Bg5 e8Q+ Bd8 Ne4 Be7 Qc6 Qa1 Qc4 Qa2 Be8 Qb1 Qcb5 Nd7 Rg5
q2B1N1q/b6n/BBk5/1Np1R1pQ/Kn3R2/N1P3nr/1p1Rb3/1Q2NR2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 d4 f5 dxe5 b5 e4 Ra7 exf5 Rb7 a4 axb4 Bb2 b3 Ba3 b4 Bc1 Rb5 axb5 Ke7 Bf4 Kf7 Bc1 Ke8 Kd2 g5 f4 d5 h4 Kd7 h6 b2 f6 d4 f7 b3 e6+ Kd6 h5 c6 f5 d3 Kc3 d2 Kb4 Qe7 h7 Kd5+ Ka4 Qb7 e7 Bh6 f8R Kc5 e8N Ne7 f6 Qc7 f7 Na6 b6 Qb8 b7 Nf5 c3 Ng7 Ra2 Qg3 b8B Qf3 Bc7 Ne6 Na3 b1Q Bd8 Bg7 h6 Nb4 Nd6 Bd4 Ndb5 Ba6 Bc4 Qh3 Nf3 Qe4 Rf1 b2 Ne1 Qhh4 Qh5 d1N Be3 Qh2 Qg6 Qeg2 Qb1 Nf2 Re8 Qhh1 f8N Ne4 Ra1 Qgh2 Rf4 Ng3 Be2 Kd5 Bd3 Ba7 Beb6 c5 Be2 Ng7 Re5+ Kc6 Bf1 Ne6 Bc4 Rg8 h8Q Qf3 Qhh7 Rh8 Qf7 Qfh1 h7 Q2g2 Qh5 Qgh3 Ng6 Nf8 Be2 Qc8 Bc4 Qa8 Be2 Rg8 h8R Nh7 Nf8 Rg6 Rg8 Rh6 Rg7 Qh3 Rd7 Qh4 Rd2 Qh2 Qf7 Rh3 Bc4 Bc8 Qh5 Bg4 Nc7 Be2 Ba6 Qh1 Ncb5 Qd5 Qd3 Qg8 Rad1 Qh8 Qb1 Nf5 Nec2 Ng3 Rdf1 Rh1 Ne1 Rh4 Nc7 Rh3 Ncb5
2kR3B/2N4B/R1pP2N1/Qb4KR/2r1B1Q1/1pQBn3/prr1n3/R2q3q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 exf5 b4 Ba6 b3 Rh2 Qd7 Bb5 a5 Rh3 Bg7 Bd3 Qb5 axb5 a4 Be2 a3 Rh1 a2 Bf1 Be5 Ke2 Bd6 Ke1 Ba3 bxa3 Ra4 Nh3 Ra7 Ng1 Ra8 Ke2 Kd8 Ke3 h5 Kf4 e5+ Kg5 e4 d4 h3 g4 e3 f4 e2 a4 e1Q d6 h2 d7 h4 a5 h3 d5 Qb4 a6 Qd4 f6 Qf2 a7 Qc2 f7 Qg2 f8R+ Ke7 d8R Rh4 b6 Nd7 b7 Rh6 b8Q Rf6 d6+ Ke6 f5+ Ke5 Qb5+ Qd5 Bd3 Ne7 Qa5 Rh6 f6 Nc6 f7 Nd4 Nf3+ Ke6+ Ne5 Nb6 Bb2 Rf6 Na3 Qe4 Ng6 Qe1 Nb5 Rf2 Rd7 Ne2 Bh8 Ba6 Rc8 Qg1 f8Q Nd5 Qg7 Ne3 Qgc3 Qe1 Rg8 Rc8 a8B Rf4 Bf3 Rc4 Bfe4 Qd2 Qg1 Qd1 Qg2 c6 Rgg7 Rf8 Ra7 Rf7 Nc7+ Kd7 Qg3 Bb5 Ra6 Kc8 Qg2 Rf3 Rd7 Rf5+ Kh4 Nc1 g5 Rf2 Qg4 Rd2 Ne5 Re2 g6 Rb2 g7 Qf1 Rg1 h1R g8B h2 Kg5 Ne2 Ng6 Qb1 Rg2 Rc1 Bh7 h1Q Rh2 Rcc2 Rh5 Qbd1 Rd8+
3r1n2/BB3Q1p/6qR/n2pKQ1R/1b1r2NN/R3P2R/3k2Qp/QB1q3n b - - 0 1 legal: proof: h4 b5 d4 c5 f4 e5 fxe5 a5 a4 g5 dxc5 Ba6 axb5 gxh4 b6 a4 b3 a3 Rh2 Bb5 Rh1 Ba4 bxa4 Qc7 Be3 Qc8 Bc1 Qd8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 g4+ Ke6 c4 f5 a5 d5 g5 h3 c6 a2 b7 f4 c7 Kf5 c8B+ Nd7 b8R f3 e6 f2 e7 Bh6 e8Q Nf6 c5 Bg7 c6 Ra7 g6 Ra6 c7 Qe7 Be3 Re6 a6 Qf8 a7 Nc5 a8R Qd6 Nc3 Kg4 Ne4 Qa6 Nf3 Qa7 Rb3 Qa3 Qf7 Bf8 g7 Nfd7 Ra6 Nb7 g8Q+ Rg6 Bg2 Na5 Bb7 f1N c8Q Bb4 Nf6+ Kf5 Bg1 Kf4 Re3 Qa4 Re5 Qa3 Nh4 Qg3 Be4 Rg4 Rh5 Qg2 Qgg7 Rd8 Rd6 Nf8 Qf5+ Kg3 Ke5 h2 Ba7 Qg1 Rc1 a1Q+ Rc3+ Ne3 Bd3 Nf1 e3 Qa4 Qa1 Qd1 Ra3 Qg2 Bb1 Qgc2 Q5d7 Kf2 Rg1 Ke1 Rg3 Rd4 Rh3 Kd2 Qg5 Qc6 Qdf5 Ng3 Qgg7 Nh1 Qg2+ Nf2 Ng4 Qb6 Rdh6 Qg6 Qgf3 Nh1 Qg2+
NB2B3/3R1PQ1/K2NRQ1B/n5B1/3prN1p/1rp1nb2/2N2kr1/1bR1n3 b - - 0 1 legal: proof: d4 b5 a4 f5 e4 g5 exf5 c5 axb5 Ba6 h4 Nf6 b6 Ng8 c4 Bb7 b4 Bc8 b7 gxh4 b5 Bh6 Nd2 Qa5 b6 Qb5 cxb5 c4 Nb1 Bf4 Be3 Bd6 Bc1 Bc5 dxc5 Kf7 Ke2 Kf8 Ke1 Ke8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Ka5 Ke4 g4 d5 f4 e5 f6 h5 f7 d4 f8B c3 c6 h3 c7 a6 g5 h4 f5 h2 g6 Ra7 g7 Be6 c8N Rh7 f6 Bg4 f7 Be6 Nh3 Ne7 g8Q Bc4 Nf4 Nd5 Qg7 Ba2 Na3 Ne3 Nc2 Bb1 Be7 Rh8 Bg5 Rg8 Qh5 Re8 Qhg6+ Kf3 Q6f6 e4 Nd6 Kf2 Bh3 Rg8 Re1 h1B Bd7 Bf3 Bh6 Re8 Bc6 Re5 Be8 Rg5 Bd2 Rg2 Rc1 Ra8 Ra4 Ra7 Rc4 Ra8 Rc7 Ra7 Rd7 Nc6+ Ka4 a5 b8N Rc7 Na6 Rb7 Nc7 Rb8 Na8 Rb7 Ka3 a4 Bg5 Na5 Kb4 Rb8 b7 a3 b6 a2 Kb5 a1R Ka6 Ra3 Bh6 Rb3 Bg5 Rc8 b8R Rc5 b7 Re5 Rc8 Bd1 b8B Nf5 Rc5 Bg4 Bh6 Bd1 Ne1 e3 Ne6 e2 Nc2 e1N Bdg5 Bf3 Nf4 Re4 Re5 Ne3 Re6
n3R3/r6b/1k3NNp/2R1r2B/3B3n/1p1p3N/NPBR3K/qn1n1QQB b - - 0 1 legal: proof: c4 b5 h4 f5 d4 c5 e4 g5 exf5 d5 hxg5 b4 a3 b3 cxd5 Bg7 Ba6 cxd4 Bd3 Be5 Be2 Bd6 Bf1 Bb4+ axb4 Kf8 Nc3 Kf7 Nb1 Ke8 g4 Kd7 f4 Kc7 Kf2 a5 Kg2 e5 f6 e4 g6 h6 b5 e3 g7 a4 g5 e2 g6 e1N+ Kh2 a3 b6+ Kb7 d6 a2 f5 Na6 d7 Kc6 f7 Rb8 f8Q Nc7 b7 Ne8 f6 Nc2 f7 Qg5 d8R Ra8 b8N+ Kb7 Nc3 Ra7 Bd3 Kb6 Nh3 Ngf6 g8B Ne1 g7 Nc7 Re8 Nc2 Qg1 Na8 Be3 Na3 Bc2 Ne4 Rc1 a1N Na2 Bf5 Bh7 Rg8 Bg6 Nf2 Bh5 Nd1 Bf2 Rh8 g8B Nb1 Be3 Bh7 Nd7+ Ka6 Nf6 d3 Bd4 Qa5 Qe7 Qa4 f8N Ka5 Be6 Rg8 Beg4 Rg5 Qe2 Re5 Bf3 Qa3 Qef1 Kb5 Rc8 Ka6 Rc5 Kb6 Ng6 Re2+ Kg3 Ra5 Rh2 Ne3 Nc3 Ng2 Bd1 Nh4 Bh1 Ra7 Rf2 Qa2 Kh2 Nc2 Rg2 Qa1 Na2 Re6 Rd2 Ne3 Bc2 Re8 Re1 Nd1 Ree5 Re6 Rg5 Re4 Rge5 Re1 Re7 Re5 Re8
Rr1R1B1K/1pNr3Q/1k3B2/R4np1/B2Br3/3NN3/RQbpbrP1/2q5 b - - 0 1 illegal: No possible last move
2Rn1Q2/P1K2ppB/bQ3N2/n2N4/1R4n1/1B3Rnp/2nB3N/r2kB1Nq b - - 0 1 illegal: No proof kernel
2B3N1/Bnq4N/1r1n2q1/PrpNkBB1/p4RQ1/1N1KprR1/5R2/1n5Q b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 a4 Ngf6 a5 Ng8 a6 Nb8 b4 b5 Qf3 Bg7 Qg3 Bb7 axb7 a5 Qg4 a4 Qd1 Bd4 Ke2 Bb6 Ke1 Ba5 bxa5 Qc8 Qg4 Qd7 Qd1 Qd8 Ke2 Kd7 g4 Kd6 d4 h5 f4 e5 g5 c5 f6 h3 f5 b4 f7 h4 f8N b3 f6 e4 g6 b2 f7 h2 g7 h3 Nh7 Nh6 f8R Ra6 g8B Qg5 Ra3 Rc6 Be6 Qg8 Bf5 Qg4+ Nf3 Rc8 Bg5 Rc6 Nc3 Qg3 Nd2 b1N Nb3 Nd7 b8B+ Rc7 Ba7 Nb8 Ra2 e3 Kd3 Qf4 Rf2 Rb7 Rg1 h1R Rg3 h2 Qg4 Qe5 Bh3 Rb5 Bc8 Rc1 R8f4 h1Q Bf5 Rf8 Bc8 Kc7 d6+ Kc6 d7 Kd6 d8N Qg1 d5 Nc6 Bf5 Nf7 Bc8 Qg7 Bf5 Ke5 d6 Qh2 d7 Qg6 Nd5 Nd6 Ke2 Ne7 Kd3 Nb7 Nc6+ Kd6 Nb8 Ke5 d8Q Nc8 Qc7+ Ncd6 Qc6 Qg7 Bc8 Rc2 Bf5 Rb2 Bc8 Qg1 Bf5 Qc7 Bc8 Rf5 Nd7+ Ke6 Nd7f6+ Ke5 Ng8 Rb6 Nd4 R2b5 Nb3 Rf8 Nc3 Rf5 Qh1 Rf7 Nd5 Qg2 Rb4 Rf3 Rf4 Qg1 Qh4 Qg2 Bhf5 Qg1 Rh3 Qg4 Rg3 Qh5 Q4h3 Qg6 Qg4
Rq3rk1/pq4p1/3N2qQ/1B1N2p1/R1B2rb1/Q4B2/4PN1B/r1bQ1Q1K b - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 h6 axb5 Ke7 c4 Nf6 g4 Ke8 g5 hxg5 b6 Ng8 b7 Rh3 Ra5 Rh7 Ra1 Rh8 b4 c5 b5 Nh6 b6 Nf5 d3 Nd6 d4 Nb5 cxb5 c4 Qc2 Na6 Qd1 Nc5 dxc5 Qf6 Be3 Qe7 Bc1 Qd8 Kf2 d5 Kg2 f5 b8Q Kf7 h4 c3 e6+ Kg8 b7 c2 b6 d4 e7 d3 e8B f4 c6 d2 h5 Be7 h6 Ba3 h7+ Kf8 c7 Rg8 h8N Qd4 Nc3 Bc5 Nd5 Qb4 Ra4 Bd4 Nf7 Bc5 Nh3 Qc4 Nd6 Bf5 c8B Rh8 Bb5 Ba3 Nf2 Rh4 Be6+ Qc8 Rh3 f3+ Kh1 Bb2 Bg2 Bg4 Qf1 d1Q Bf4 c1R Bh2 Qe8 Qd8 Ra1 b8Q Qb3 b7 Bc1 Qbc8 Qd3 b8Q Qg6 Qbb6 Rb8 Qc3 Rc8 Nf7 Kg8 Qa3 Ra8 Qdd6 Qb8 Qd4 Qb7 Qdd1 Rf8 Qb6 Bf5 Qc6 Rf4 Rh7 Bg4 Nd6+ Qgf7 Ne3 Qb8 Bec4 Qe6 Nd5 Qg6 Nd3 f2 Bf3 Qb7 Rh6 Qe8 Re6 Qg6 Re8 Qb8 Qa6 Qb7 Ra8 Qb8 Qg1 f1Q Nf2 Qe1 Qf1 Qb4 Nf7 Qe7 Qe6 Qeb7 Nd6+ Qgf7 Qh6 Qfe8 Ba2 Qg6 Bac4
qr2Bqb1/B1kNR2q/2Q5/1R1pB3/2NQ3P/r3pN1R/1pn2Nq1/2BK4 b - - 0 1 illegal: No possible last move
3N2nb/2Q2P1N/bKBB4/3q1p2/1B4p1/4R2Q/bBp2Q1R/rkbq1RQ1 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 Nd7 g5 Ra6 Bg2 Rg6 Bf1 exf4 h4 Ndf6 gxf6 Rg5 Na3 g6 Nb1 Rh5 Rh2 g5 Rh3 g4 Rh1 Rg5 hxg5 Bc5 Qb3 Bb4 Qd1 Bf8 Kf2 Kd7 b4 Kd6 e4 Ke5 d4+ Kd6 g6 h5 e5+ Kd7 e6+ Kd6 e7 c5 e8R a4 g7 a3 b6 a2 b5 f3 Ke3 c4 f7 f2 b7 h4 b8Q+ Qc7 b6 c3 b7 c2 Na3 h3 Nc4+ Kd7 d6 Kc6 d7 Kd5 d8Q+ Bd6 Nf3 h2 Qh4 Bc5 Bb2 Qc6 Na5 Qh6+ Ng5 Ba3 Bb5 f1B Qc7 Bf8 b8B Ne7 g8Q Bd3 Nc6 Qh5 Nh7 Be4 Qf2 Ba6 Nd8 Bh6+ Qg5 Rg8 Bc6+ Kc4 d5 Kb3 d6 Bd5 Kd4 Rg6 Kc5 Ng8 Qf6 Bc1 d7 Qh4 Rb1 a1B Qc3+ Ka2 Re3 Rf6 Rf1 h1Q Kb6 Bdc4 Qcd3 Qd5 Rh1 Qg3 Qdg1 Qgf3 Rh2 Qd1 Qdf1 Rg6 Qh3 Bb3 Nb7 Re6 d8B Re4 Be7 Ra4 Nd8 Ra5 Bba3 Bh8 Beb4 Bbc4 Rbb3 Ra4 Bb2 Kb1 Re1 Ra5 Rbe3 Ra1 Rf1 Bb3 Qe7 Bbc4 B8d6 Ba2 Qc7
3Bb1Rk/2NRQp2/4Rr2/1qnK1Q2/3pPQp1/Nr1B1NrN/2r5/2Q2q2 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qb6 g5 Qd8 h4 h5 Qd2 g6 Qd1 Bh6 gxh6 g5 Na3 g4 Bf4 Na6 Nb1 Nc7 Be3 Ne6 Bc1 Ng5 hxg5 Qc7 Bh3 Qb6 Bf1 Qd8 Kd2 Kf8 Kd3 d5 c4 a5 b4 a4 e4 a3 h7 Kg7 e6 h4 c5 a2 g6 h3 c6 h2 c7 Ba6 c8Q Rb8 e7 Rb7 e8N+ Kf8 g7+ Ke7 Na3 Nh6 g8R Qd7 Nf3 Qf5 Nc7 Rb6 Bg5+ Rf6 Qc1 Bb7 b6 Bc6 b7 Be8 Rb1 a1R b8Q Ra2 b5 Rc2 b6 Qe5 b7 Nf5 Rb6 Nd6 Rg1 h1R Qa7 Rh3 b8Q Rg3 Qf5 Nb7 Bh4 Nd8 Rg2 Nb7 Rd2 Nc5+ Ke2 d3+ Ke3 Qe6 Kd4 Qc6 Rd1 d2 Bd3 Qb5 Re6+ Kd7 Rg7 Rf8 h8N Rg8 Ng6 Rf8 Rh1 d1Q Nf4 Qf1 Nh3 Rg8 Ke5 d4 Kd5 Rh8 Rd6+ Ke7 Rd7+ Kf8 Rg6 Rb6 Re6 Kg8 Bd8 Rh6 Rh2 Rc4 Rb2 Rf6 Rb4 Kh8 Ra4 Qb1 Qab7 Rc2 Ra8 Rb3 Qb4 Nb7 Qe7 Nc5 Qb6 Rbc3 Qbd6 Qb5 Qdf4 Rb3 Re5 Rc6 Re6 Ra6 Rg6 Re6 Ra6 Rf6 Re6 Qb4 Rg5 Qb5 Rg8+
N1B2K2/1R3R1r/1pQ4r/1NQ1n3/bp2NRrP/2bk1QR1/3N1rpB/1r6 b - - 0 1 illegal: No possible last move, all moves rejected
N1K1n1q1/kB3prQ/2p1N3/B1r1rn1P/3p2NR/8/3B2rR/R3NqBQ b - - 0 1 legal: proof: g4 b5 f4 h5 gxh5 e5 a4 exf4 axb5 Rh6 c3 Rh8 d4 Bb4 e4 Nf6 b6 Bd6 b4 Be5 dxe5 Ba6 c4 Bb5 cxb5 Ng8 Ke2 g5 Kd3 a5 Kc4 d5+ Kc5 Kd7 h4 Kc8 h6 Kb7 h7 g4 h5 f3 e6 d4 e5 a4 e7 c6 e8N a3 e6 g3 e7 g2 Nh3 g1R Nc7 a2 e8N f2 Bd2 Rg7 Nf6 Ra5 Ng4 Qd7 Nf4 Nf6 Nfe6 Rgg8 Na8 Qc7 Rh4 Qc8 Kd6 Ra4 Na3 Nbd7 Nc2 Nc5 Ne1 Kb8 b7 Ka7 b8B+ Kb7 b6 Nfd7 b5 Nf6 Bc7 Nb3 Bd8 Kb8 b7 Rc4 B8a5 Ka7 b8R Rc5 Qf3 Re5 Qh1 Rg7 Bh3 Qe8 Kc7 Rhg8 h8Q f1Q Qh7 Nc1 Rb6 Rc5 Rb8 Ne2 b6+ Ka6 b7 Ng3 Qf5 Qf8 Qh7 Ka7 Re8 Nf5 b8B+ Ka6 Re7 Ne8+ Kc8 Re5 Rb7 Rc5 Bd6 Re5 Rb6+ Ka7 Rb2 Rc5 Bh2 Re5 Rab1 a1R Bg1 Ra3 Ra2 Rc3 Rba1 Rcc5 Rb2 Rg5 Rba2 R8g7 Rc2 Qg8 Rb2 Qf2 Bf1 Qg2 Ba6 Qf1 Bb7 R5g6 Bc1 Rg5 Rbh2 R5g6 Bcd2 Rg5 Ne3 Rg2 Ng4
2KB4/Q6Q/p2Q2N1/1pBN3R/Pb2n3/2Bnpp1r/r1N5/1bk1BqNR b - - 0 1 legal: proof: e4 d5 g4 c5 b4 h5 bxc5 d4 gxh5 d3 cxd3 Bd7 d4 Bf5 d5 Bc8 e5 f6 exf6 g6 f7+ Kd7 f4 Kc7 f5 Rh6 f6 Kd7 Bd3 Rh8 Bf5+ gxf5 Ke2 e5 Kf3 b5 h4 a6 a4 e4+ Kf4 e3 Ke5 f4 d4 f3 c6+ Kc7 d6+ Kb6 d7 Ka5 Ke6 Kb4 d5 Kc4 c7 Rh7 d6 Bh6 f8B Nc6 f7 Nb4 Bd2 Kd3 Be1+ Kc4 Qd4+ Kb3 Na3 Bf4 h6 Ra7 h5 Na2 Nc2 Ra8 Qa7 Rh8 h7 Kb2 h6 Be5 Rh5 Bb7 c8N Bf4 Nb6 Qc7 d8B Nc1 d7 Be4 Nd5 Qc4 Bc5 Qf1 f8N Rc8 Ng6 Nd3 Rd1 Nf6 Rc1 Rg8 h8Q Bd6 h7 Bf8 Qg7 Rh8 Qe7 Rc6+ Qd6 Rc8 Bda5 Rc7 d8B Rg7 Nh4 Rg2 Ng6 Rh2 Ra1 Rh3 Rd1 Rg8 h8Q Be7 Nh4 Rg2 Qh7 Bg6 Bab4 Ne4 Kd7 Rd2 Kc8 Rg2 Rd2 Kc1 Bc3 Rgh2 Rg2 Bf8 Rg3 Rd2 Rg2 Rf2 Rh2 Rd2 Na1 Ra2 Rh1 Be7 Nc2 Bf5+ Qe6 Bd6 Ng6 Bf8 Bcb6 Bb4 Bc5 Nf6 Nc7 Nf2 Na1 Bb1 Nd5 N6e4 Qd6 Nd3 Nc2
BR1BQ2r/Qp1B4/2p3bP/kp1Q1r2/1pb1K1Q1/1B3n2/2N3Rq/1N3n1N b - - 0 1 illegal: Other
Q1rb2q1/rB3pn1/5P1k/p7/KN3B1N/pQ2Q2R/1pN4Q/1RbB1qN1 b - - 0 1 illegal: Other
5K2/RRp2B1B/4QBBp/R4pq1/RNPpr1N1/5rk1/2b3nQ/2Qr1q2 b - - 0 1 legal: proof: f4 a5 d4 e5 dxe5 b5 h4 g5 g4 gxf4 b4 Ra7 a4 Ra6 h5 Nc6 g5 Ra8 axb5 a4 Bd2 Nce7 Bc1 Ng6 hxg6 Bc5 Nc3 Bb6 Nb1 Ba5 bxa5 Qf6 Be3 Qe7 Bc1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 h6 c4 f6 a6 d6 b6 f3 a7 a3 g7 f2 b7 a2 b8R Qf8 g6 Qe8 Na3 Qe7 Nf3 Qf8 Bb2 Qe8 Nc2 Qe7 Qc1 Bd7 Rb7 Rb8 a8R Qe8 Nh2 Ba4 Ng4 Bb5 Raa7 Qd8 Rh5 Ba6 Nb4 Ne7 g8B+ Kd7 e6+ Ke8 g7 Bb5 Bh7 Nd5 Kf5 Ke7 Kg6 Ba4 g8B Ne3 Kg7 d5 Bf7 Kd6 e7 Ng2 e8Q Bc2 e4 Rf8 Bd3 f1Q Qa4 Qe7 Qa3 Rbe8 e5+ Kc5 e6 Kd6 Bdg6 d4 Qh3 Qd8 Rha5 Qe7 Ba3 Qd8 Rb1 a1R Rb2 Rb1 e7 Ra1 Ra2 Rb1 Ne3 Ra1 Ra4 Ke5 R4a5+ Kf4 Qh2+ Kf3 Ng4 Qd5 Ra4 Qg5 R7a5 Ra8 e8Q f5 Qd2 Rd1 Qe6 Rfe8 Qc1 Ra6 Ra1 Re7 Kf8 Ra7 Qd5+ Re4 Qe6 Ra6 Na2 Rb6 Be7 Rb3 Bf6 Rc3 Nb4 Rce3 Qg1 Kg3 Raa7 Red3 R4a5 Rde3 R1a4 Rf3 Qh2+
NBR2n2/3qNQ2/KQ2b3/1Nq1Q3/k2PB1RQ/1pb3n1/2Nppq1p/6R1 b - - 0 1 legal: proof: h4 a5 e4 g5 hxg5 d5 b4 axb4 c3 b5 Rh4 f5 exf5 d4 Rh2 d3 Rh1 Ra5 Be2 h5 Na3 c5 Nb1 c4 Bf1 Ra6 Qg4 Rd6 Qe2 Rd4 cxd4 c3 Qg4 c2 Qd1 Rh6 Ba3 Rc6 Bc1 Rc3 dxc3 Be6 Bb2 Bd7 Bc1 Bc8 Kd2 Kd7 f4 Kc6 a4 e5 g4 b3 c4 h4 Kc3 e4 a5 b2 c5 b4+ Kc4 h3 f6 b3 f7 e3 g6 e2 a6 h2 f5 Nd7 g5 Bh6 f8Q Qc7 f6 Bb7 a7 Qb6 a8N Nb8 f7 Qd8 g7 Ne7 g8Q Bg7 g6 Bf6 g7 Nd5 Qe1 Nc7 Bf4 c1Q+ Nc3 b1Q Qe8+ Nd7 f8Q d2 Qff7 Bc8 Nf3 Qe4 Bg2 Qg6 Qe5 Be7 Rg1 Bg5 Qh4 Qh7 Ne1+ Nd5 Nc2 Nf8 Be4 Be6 Nb5 Qd7 Rg4 Bd8 Qff6 Qh6 Qgf7 Ba5 g8N Bc3 Qd8 Qa3 Rag1 Qf6 Bg3 Qf2 Ne7+ Kb7 c6+ Ka6 c7 Ka5 c8R+ Ka4 Qb6 Nf6+ Qd5 Nh5 Bb8 Qc1 Kc5 Ng3 Qe5 Qd8 Kc6 Qa3 Kb7 Qc5 Ka7 Qd7+ Ka6
8/2nQ4/Bp1p2Kn/1p1k4/1P1BN1nB/Np1n2rR/Bqr1QR2/N1R1R3 b - - 0 1 illegal: Other
2N1Q3/2k3Rb/ppr1pb1B/5N2/P4B2/1rprr1BN/3p1NB1/KQ2RR2 b - - 0 1 illegal: No possible last move
3k1Q2/1Q1Nbrn1/4r2q/K2R1bbq/Nr1n2PR/R1Bn2qN/B3BR2/6B1 b - - 0 1 illegal: No possible last move, all moves rejected
6bQ/1NbQBb2/1B2rR2/2qn4/K3R2n/N1rPNR2/n1BB3k/2nr1Rn1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 f4 h5 b6 a5 f6 c5 b5 e5 f7 e4 g5 h3 b7 a4 d3 e3 g6 h4 f5 Ke5 b6 Kf4 d6 Kg3 f6 c4 g7 e2 Kd2 e1N Kc3 h2 Kb4 a3 Nh3 c3 Nf4 a2 Na3 c2 Qe2 h3 Rg1+ Ng2 Qe6 h1B Be2 h2 Nd5 Ne7 d7 Na6+ Ka4 Rh6 b8R Qc7 d8N Qc5 Rf1 Nh4 Bd2 c1N Ne3 Nd5 b7 Bd6 f8B Bc7 g8Q+ Rg6 Qc6 Be6 Qd7 Bf7 Bd1 Bf3 Rf2 h1N Bc2 Ra7 Rf1 Nf2 Qh8 Kh2 Be7 Nh3 Ra8 Bg4 b8B Bge6 Nb7 Ng1 Rf3 Rh6 Rb1 a1R Rb4 Bg8 f7 Rf6 f8R Bef7 Re4 Nab4+ Na5 Raa6 Ba7 Nba2 Bb6 Re6 Rab8 Ra8 Rbe8 Rc8 Nb7 Nb3 Ref4 Rd1 Rf5 Nbc1 Rf6 Bd8 Rf1 Rcc6 R6f3 Bc7 Rf6 Qd6 R6f3 Rc3 Rf6 Qc5 R6f3 Bg6 R8f6 B6f7 Bd8 Rc6 Re4 Re6 Be7
1k3r1n/2R5/P1rb1NB1/rBN1bN2/3nRqr1/r1n1B3/3Q2R1/Q2N1bBK b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 Kf2 e5 d4 b5 a4 c5 g4 Kc7 Kg2 h5 a5 e4 g6 e3 g7 b3 a6 b4 f6 h4 f5 e2 g5 e1B g6 b2 f7 b3 d6+ Kb6 d7 Kc7 f6 c4 d5 c3 d6+ Kb6 Ra2 Ka7 Bb5 c2 Ne2 Bg3 Nd4 Be5 Re1 h3+ Kh1 h2 Nf5 Rh4 Re4 Ne7 g8B Nbc6 g7 Rg4 Be3+ Kb8 Nc3 b1R Bh7 c1R g8N b2 Bg6 Qc7 d8B Ra1 d7 b1N Rg2 Ra5 Qe1 Rc2 Nd1 Nc3 Qg1 Qd6 Bdb6 Nd4 d8Q Rca2 Qe1 R2a3 Qd2 Qb4 Qc1 Qc4 Qa1 Qf1+ Bg1 Qf4 Qd5 Bd7 Qda2 Be6 Qd2 Bc4 Bc5 Bf1 Bb6 Bg7 f8N Bd6 f7 Bh8 Ne6 Bhe5 Bh5 Ng6 Nc5 Nh8 Bg6 Ra7 Nf6 Rc7 f8R+ Rc8 Rf7 Rf8 Rg3 Bd3 Kg2 h1R Rc7 Rh6 Be3 Bf1+ Kg1 Rh7 Rg2 Rg7 Kh1 Rgg8 Ra7 Rc8 Bg1 Rc6 Rc7 Rf8 Nb3 Nc2 Bbe3 Nd4 Nc5
1nB1qB1b/1b3RbN/Rb1N1b2/3B2n1/1K2Q3/N1r1N3/1QPRk3/3R1nrq b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 Kf7 Kc3 Kf6 h4 Ke5 b4 Ke4 f4 g5 h5 a5 c6 d5 c7 e5 h6 a4 h7 a3 b6 a2 b5 g3 f6 g2 f7 g4 f5 g3 f6 Bg7 f8N d4+ Kb4 d3 f7 d2 b7 Ke3 b6 e4 Nf3 g1B Bc4 g2 Nd4 Nf6 Na3 Qe8 Qg4 Rg8 h8N Nh7 Bd5 Ng5 Nh7 Ra5 f8R Rc5 Rf6 Rc3 Nf7 Bf2 Rh2 g1Q Nd6 Qh1 Rf7 Bf6 Bb2 d1N N4f5+ Kd2 Qg2 e3 Qe4 e2 Ne3 e1B Rc1 a1B Rh6 Bg4 c8B Ke2 Rb1 Bf3 Rc1 Nd7 b8R Bg7 Rb7 Nb8 Rbd7 Bg1 b7 Bh4 Ng2+ Ne3 Rd1 Rd3 Bf6 Rc3 Be7 Bh8 Bf8 Rg7 Qg4 Nf1 Qf5 Bb6 Ne3 Ne4 Qf4 Rg1 Qg4 Ng5 Qe4 Ne6 Rg6 B4f6 Rh6 Ng5 Rd8 Nd7 b8Q Bhg7 Qb7 Nb8 Qg4 Bc7 Ndf5 Bh8 Be4 Bd4 Qd5 Bde5 Qb3 Beg7 Ra6 Rc5 R8d6 Bad4 Qb2 Bdf6 R6d4 Bb6 Nd6 Rc3 Beb7 Qh3 Qh4 Bc6 Qe4 Qh1 Ba8 Bb5 Bd5 Bc6 R4d3 Bb7 R3d2+
B1RNQ3/3QBR1N/b1qrn2N/2br1R1r/q1n4n/3Nn2Q/Pn4R1/2K4k b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kf7 Kd2 Kf6 f4 e5 h4 b5 h6 c5 h7 g5 d6 g4 d5 g3 h5 c4 h6 g2 d7 e4 d6 e3+ Kc2 c3 Qd3 e2 Nh3 g1N Na3 e1N+ Kb1 b3 Nc2 b2 Qe4 b4 Ne3 Nc6 Bg2 Ngf3 Qd5 Qe8 d8Q+ Nge7 d7 Ra6 Rh2 Nd3 Nf2 Ncd4 Qb5 Nh4 Ba8 Rc6 Rg2 Ba6 Qd5 Ne6 Neg4+ Kf7 f6 Kg6 f7 Rd6 f5+ Kh5 f6+ Nef5 Kc2 b1R Bg5 Nb2 Nd3 Rd1 Qc8 Be7 d8N Qa4+ Qb3 Rd2+ Kc1 c2 f8N Ne3 f7 Rd5 Qbc3 b3 Qd7 Bc5 Be7 Rd6 Ndf2 R2d5 Nd3 Rg8 h8Q Rgg5 Nh7 Rgf5 f8R Rfe5 Kd2 c1Q+ Ke2 Rf5 Rf7 Rg5 Qe1 Qcc4 Kd2 Qcb5 Rb1 Qc6 Kc1 Rgf5 Nhf6+ Kg5 h7 Rfe5 Ndf2 Kf4 Nh6 Kf3 Nd3 Rh5 Qhe8 Ng5 h8R Ne6 Rf2+ Kg3 Rf5+ Kh2 Qc3 Kh1 Nh7 Nbd1 Kd2 b2 Ra1 b1N+ Kc1 Nd2 Rb1 Bc8 Rb2 Ndc4 Rg8 Ba6 Rb8 Ne5 Rg2 Nb2 Rc8 N5c4 Qe1+ Nf1 Qg3 Nfe3 Qh3#
RrbBb3/8/r3n2q/b1NrkQqN/r1RN1N1r/1Q5P/RK1nB2B/7B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Kd7 Kd2 Kd6 Kc2 f5 b4 c5 e4 a5 h6 g5 h7 f3 b6 c4 e5+ Ke7 b7 g4 b5 a4 d6+ Ke6 d5+ Kf7 e6+ Kf6 d7 c3 e7 f2 e8B f4 h3 f3 d6 g3 b6 a3 Qd3 a2 Na3 g2 Ne2 g1R Bf4 Rg5 Bh2 Ra4 Nf4 Na6 b8N Rd5 b7 Ke5 Nb5 Nc7 Na6 Ne6 b8Q Nf6 Nc5 Ne4 Nd4 Nd2 Be2 f1B Qb3 Qg5 d8N f2 d7 Bd6 Rg1 Bc7 Rg4 Ba5 Qdb5 Rf8 h8R Qh6 Kc1 c2 Kb2 c1R Bg6 Rcc4 Be4 Bg2 Rhg8 f1Q Nh5+ Qff4 B4f3 Bf1 Bh1 Bg2 Rh4 Be4 Rhg4 Bg6 Rh4 Be8 Rhg4 Ng7 N8e6 Qg3 Nef4 Ne6 Rh4 Qgg5 d8B Rcb4 Rg1 a1R Rg2 Rf7 Qd3 Rfb7 Rf2 Rb8 Qf5+ Kd6 Rg7 R1a3 Ra7 Ra1 Ra8 Rc4 Qb1 Ke5 Qg6 Rcb4 Qf5+ Kd6 Nb5+ Kc6 Rf1 Bc7 Nfd3 Ra6 Rd1 R1a4 Ra1 Ba5 Ra2 Rf4 Nd4+ Kd6 Rg4 Rb7 Rg3 Rh4 Ndf4 Rb5 Rc3 Rb8 Qb1 Ke5 Rc4 Qf8 Qg6 Qfh6 Qf5+
BBb1Q1rq/Qn2n1r1/2N2bqk/N1Q5/1BRqR3/1RPb4/6bQ/K2b3B b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 Kg7 g4 h5 f4 a5 f6+ Kg6 c3 d5 Kc2 e5 Kb2 e4 f5+ Kh7 b6 d3 f7 d2 b5 h4 b7 e3 b6 d4 g6+ Kg7 f6+ Kh6 g7 e2 g5+ Kh5 g6 d3 Ra4 h3 Na3 h2 Bg2 Rh6 Nc4 Bc5 f8B Bd6 f7 Be7 Qc2 d1B Ka1 e1Q Nf3 d2 Nd4 Bf6 Bb4 Qe5 f8Q Rh7 Re1 h1B Qc5 Nc6 b8R Kh6 b7 Nge7 g8B Be2 g7 Bd3 B8d5 Qh8 g8Q Nd8 Re4 Rg7 Nc6 Qd4 Bf3 Bg2 Qe8 Qf8 Bca3 d1B Qf2 Qh8 Qa7 Bgh3 Bh1 Bhf1 Bd6 Bg2 Rb4 a4 N4a5 Rh7 Rb3 Rg7 Bab4 a3 Qf5 a2 Qe5 Bd7 Rc8 Rb8 Rc7 Bc8 Qc5 Ra8 b8Q Nb7 Qba7 Bch3 Qf7 Rag8 Qe8 Bc8 Qh2+ Kg5 Nd8 B1e2 Re3 Bc2 Qcb5 Nc5 Kb2 Bed1 Ba8 B2f5 Qbb6 Nb7 Rc4 Bb1 Bb8 a1Q+ Kc1 Qa2 Ndc6 Qe2 Re6 Qed3 Kb2 Qg6 Re4 Bbc2 Ka1 Bd3 Qe5+ Kh6 Qbc5 Qgh7 Qc7 Qg6 Qh2+
bk6/4r1B1/2n2NnQ/5Q1q/Rr2b2P/BQ1B2N1/1b2Rbr1/QBbK2Rq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 c5 e4 Kc7 d4 f5 h6 g5 b6+ Kb7 h7 a5 d6 c4 e5 a4 d5 c3 e6 c2 e7 g4 e8B a3 d7 g3 b5 g2 d6 f3 Bd3 f4 Nd2 a2 Ba3 c1B Ne4 Nc6 Bg6 Ra4 Nf6 Kb8 b7 Nge7 Ne2 Rb4 Rg1 Qa5 d8B Bf5 d7 Be4 Ng3 f2+ Ke2 Rg8 h8Q f1R Qh6 Bg7 Bb6 Re8 Bd4 Rf2+ Ke1 f3 d8Q+ Nc8 Bh7 Re7 Qd7 Rfb2 Qb3 f2+ Kd1 f1B Bb1 Bc4 Qf5 Bcd5 Bd3 Re8 Bb1 N8e7 Bd3 Ng6 Be5+ Ka7 b8R Re7 Re8 Kb7 b6 Re2 Rh1 g1B Bb1 Bc5 Rg1 Rg2 Qb2 Bf2 Qc3 Ka6 b7 Bh8 b8Q Qb5 Qd8 Kb7 Qa5 Bg7 Bd3 Qc5 Qb3 Qb5 Rb1 a1Q Ra8 Bh8 Rb2 Bg7 Ra6 Qb1 Bc3 Kb8 Re2 Bh8 Ng8 Bhd4 Ba1 Bdb2 Nf6 Na7 Qaa4 Ba8 Qa5 Nc6 Ra7 Qb6 Qae5+ Qc7 Ra4 Qd6 Qec3 Qe5 Qd7 Bd5 Ng4 Nf8 Rge1 Qh5 Bc4 Bf4+ Qc1 Re3 Kd2 Bf3 Be4 Bbe5 Qf5 Ng6 Rd1 Bc7 Bg7 Bce5 Nf6 Bb2 Bc2 Qa1 B4d3 Bd5 Qb1 Bg5 Q1a2 Qb1 Qa1 Re7+ Re3 Be4 Rh1 Qf1 Bb1 Qg1 Kc2 Qh2 Re2 Bgc1 Rg1 Qh1 Kd1
2Q1BqN1/8/Qnq2B2/4nN2/k3P1rQ/2nbR2N/2R1nK2/bNrr1BnQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 b4 h5 g4 c5 e3 a5 b6 f5 d6 Kc6 d7 h4 b7 a4 g6 a3 g5 f3 g7 h3 g6 c4 d5+ Kb5 d6 f2+ Ke2 h2 Qd4 f4 Bd2 c3 Qf6 f3+ Kd3 a2 Nh3 c2 Qh4 Nc6 b8Q+ Ka4 Bc3 Nf6 g8N Bg7 b5+ Ne4 b6 Qf8 d8N Bf5 Qb7 Rc8 d7 Ne5+ Kd4 c1N Nf7 Rh5 d8Q Rg5 Nfh6 Rg4 Qdd5 Rc6 Rg1 h1Q Rg2 Rc8 Bb2 Nc3+ Qe4 Bf6 g7 Bh7 Nf5 Rc7 Bd3 f1N Rc2 Nd2 Bf1 f2 Qc8 Ndc4 b7 Rc5 b8Q Nb6 Qbb7 Rc6 Nge7 Bg6 g8B Bg7 Bf7 Rc7 Bg2 f1N Ng8 Nd2 Bf1 Rc6 Ba3 Rc7 Be7 Qg2 Bf6 Qf3 Qf4 Qc6 Be8 Bh7 Qe4 Bg6 Na3 Bh7 Rb1 a1R Rb3 Bh8 Nb1 Bg6 Nf4 Bh7 Qeh1 Bg6 Nfe7 Bd3 e4 N1e2+ Ke3 Ndf3 Kf2 Nfg1 Nh3 Rd7 Nf5 Rd4 Nd2 Rc1 Nb1 Bc4 Rb5 Rdd1 Rd5 Bg7 Rd3 Ba6 Rg3 Bd3 Re3 Ned7 Nfh6 Nb5 Nf5 Bh8 Bd8 Ba1 Bg5 Nbc3 Bf6 Ne5 Qa6+
B2KNR2/1R4R1/kBr2Q1n/1qPB1bN1/2Q1q2Q/1B6/q1q2b1r/n1qR3b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 e5 Kd3 h5 Kc4 a5 Kd5 h4 f4 e4 b4 h3 g4 h2 c4 e3 f6 a4 g6 a3 g7 d3 f7+ Ke7 f5 a2 g5 e2 b6 e1Q b7 d2 g6 d6 f6+ Kd7 b5 Kc7 b6+ Kd7 Bg2 Qde8 Na3 Rh6 Qg4+ Kd8 Nf3 d1B Rg1 h1Q Be3 Be7 f8R Nd7 Kc6 d5 b8R d4 b7 d3 f7 d2 Ng5 Rh2 Nb5 Bc5 Nc7 Nh6 g8B Bf3+ Qe4 d1Q g7 Qb3 Rd1 a1Q Bf2 Ba7 Bb6 Qaa2 Kd6 Qbc2 Qh4 Bd5 Be4 Nc5 Rg3 Nb3 c5 Na1 Rg4 Bc6 Bd5 Qhg1 Bh7 Qb4 g8B Qb5 Bb3 Bh1 Be4 Qe3 Bed5 Qec1 Bh7 Qbd3 Be4 Qde3 Rg8 Qe1 f8Q Qf1 Rg7 Qb5 Qf5 Qg6+ Qe6 Qh7 Rf4 Qf5 Bg2 Qg4 Qe4 Qge2 Qc4 Qee4 Ba5 Bb6 Ne8 Ra6 Rff7 Rh3 Ra8 Rh2 Ra7 Bf5 b8Q+ Bc8 Qb7 Bf5 Qe7+ Kc8 Rf8 Bd8+ Bb6 Kb8 Qf7 Bf6 Bf3 Bd4 Rb7+ Ka8 Kc7 Bf2 Ba7 Rc6+ Kd8 Qba4 Bb6 Qb5 Re7 Kb8 Qf6 Ka8 Nc7+ Kb7 Ne8+ Ka6 Ref7 Re6 Ba8 Rc6 Rb7 Qe1 Bd5 Qb4 Qcc3 Qbe4 Qc4
r1qR2kB/n2R1Rnr/2n4R/bPn4Q/N3b1r1/qB2KQ2/1NB1n3/4Q1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1n3RK1/1q4BN/1R1BN2P/k2n3b/r2QNr1N/q1BQ2br/2R1r2n/5r1B b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 Kb6 d4 g5 h4 a5 b4 a4 f4 a3 f6 e6 d6 c4 d7 g3 f7 c3 d5 g4 d6 a2 h5 g2 h6 g3 f5 c2 f6 Ra5 Nd2 Qc7 d8N Qb7 d7 Ra6 Rh2 Ne7 Ne4 Qa8 Qd4+ Kc7 Bb2 c1R Bc3 Qb7 Rb1 a1Q Nf3 g1R Bg2 Rh1 Nh4 Ra4 Qd3 Rhf1 Bh1 Kb6 Rc2 g2 Rbb2 Bg7 f8N g1N Nh7 Rf8 Kd6 e5 Ke6 Rf4 f7 Qa3 Rb1 Re8 f8B Rcf1 Rbb2 Bf6 Kf7 Nf3 Ne6 Nh2 Bg7 Nd5 Rb1 Re7+ Kg8 R1f3 d8R Rh3 Rf8 Bd7 Rb3 Be8 Rbb2 Bh5 Rb1 Rf7 Rb3 Be7 Qd4+ Bc5 Rbb2 Ka7 b6+ Ka6 Rb1 Bd6 Rbb2 Qe7 b7 Rf1 Rb1 R7f4 Qd3+ Kb6 b5 Qd7 Rb4 Ka5 b6 Qc6 Ng3 e4 Qd4 e3 Ne4 Nd7 b8B e2 b7 e1R Bc7+ Qb6 b8Q Re2 Qd8 Nb8 Qd7 Be5 Bd6 Qb7 Qd3 Rg4 Qd4 Bg3 Qd3 Rgf4 Qd8+ Qb6 Qf6 Qc6 Qfd4 Qb7 Rb6+
1k6/1Qq1N2q/2Rqn1P1/1b1BR1n1/1b3B2/NbNQ1b1r/b1r2Q2/2R1KQR1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 b4 h5 e4 c5 g4 Kc7 e5 f5 g6 a5 g7 a4 e6 a3 e7 f3 e8Q c4 g5 f4 g6 h4 Qf7+ Nd7 d6+ Kb8 b6 c3 b7 c2 d5 a2 b5 h3 Bg2 h2 Ne2 Nc5 d7 Rh3 d6 Nf6 g8N Nfe4 Na3 Ng5 Rg1 h1B Ne7 Nce6 Nc3 Ra7 Rb1 a1Q Qf5 Qc7 d8R Ra8 d7 Qd6 Be3 c1Q Re8 Ra6 d8Q Rc6 Qa5 Rc7 Qd3 f2+ Kf1 Rc4 Bd5 Bf3 Qa6 Qc2 Rc1 Qab2 Ne4 Qg7 Nc3 Qh7 Bd2 Be4 Ke2 f1B+ Ke1 f3 Bf4 Be2 Q1d2 Bd1 Qf2 Rc5 Qff1 Qh2 Qf2 Bb3 Qdf1 Bb1 Qd3 B1a2 Qdf1 Kc7 b8R Bb7 Qd3 Ba8 Rb6 Bb7 Ncb1 Rc2 Nc3 Bc8 Rc6+ Kb8 b6 Qc7 Nf5 Bb4 b7 Qd6 Ne7 Qc7 Bd2 Qhd6 Bf4 Nf7 Rf8 Nfg5 Rf5 Bd7 Re5 Be8 Rb6 Bc6 Qff1 Bb5 Rc6 f2+ Kd1 B5a4 Qe3 Bc4 Qfd3 f1B Qe1 Bg2 Qf2 Bc5 Ra1 Bf3+ Ke1 Rd2 Qff1 Rg2 Qb5 Ka7 Rc1 Bad1 Qb2 Bdb3 Qbe2 Bb5 Qee3 Rc2 Qef2 Bb6 b8Q+ Ka6 Rc4 Bc5 Qc8+ Ka7 Qa6+ Kb8 Bg3 Qcd8 Bf4 Bb4 Rc6 Q8c7 Qb7+
KN3Rnb/n1BQ3B/2rPQ3/2Q2b1R/Nb3Q2/5N2/1B2Nqrr/kb4bq b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 h5 Kc5 Ke5 d4+ Ke4 b4 a5 g4 e5+ d6 c6 f4 a4 f6 h3 b6 a3 b7 h4 f5 h2 b5 a2 b6 h3 d5 Qc7 f7 Rh4 f6 Be7 f8Q Bf5 g5 Qc8 Qf7 Qf8 g6 Rg4 g7 Rg2 Nf3 Ra3 Rg1 h1B Bb2 h2 Bd3+ Ke3 Qf1 e4 Nc3 Bd8 Rd1 a1B Na4 Ra2 Qd7 Be7 f7 Bg5 Kc4 c5 Kb5 Nc6 Ka6 c4 b8B c3 Kb7 c2 Ka8 c1R b7 Na7 Bc2 Bd8 Bc7 Bh4+ b8N Bf2 Bb1 Rc5 Qc4 Rc6 Rgf1 Bg1 Qc5+ Ke2 Rc1 e3 Rc2+ Kd3 Rff2 Ne7 g8Q e2 Qg6 e1B Qge6 Bb4 Rf1 Qg7 f8Q Qg3 Qfh6 Ng8 Qf4 Rd2 Rcc1+ Rc2 Rce1 Qf2 Re5 Bg2 Rc1 h1Q Rf1 Bg4 Rh5 Bf5 Qde7 Bgh3 d7 Bh7 d8N B3f5 d6 Bhg6 Ba3 Bh8 Q6d7 Bh7 Ne6 Rb2 Ned4 Bhg6 Qce5 Kc4 Ne2+ Kb3 Qeg5 Rd2 Be4 Ka2 Bb1+ Ka1 Qee6 Bc2 Qc5 Bgf5 Ba2+ Bb1 Bc4 Bg4 Bd3 Rdc2 Bh7 Bf5 Nh2 Rb3 Bc1 Rh3 Nf3 Rh2 Ne5 Bg4 Nd4 Qe3 Qg3 Bc3 Rf8 Bb4 Qf4 Bf5 Nef3 Rcg2 Ne2 Qf2 Bb2+
q7/Q1Q3RN/Pq1Rb1K1/2r1B2B/3q3R/3k1B2/qN1b1RBQ/nbn2rq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 g4 e5 f4 h5 d4+ Kd6 a4 c5 g6 b5 f6 b3 g5 c4 g7 b2 f5 c3 a5 h4 f7 h3 g6 b4 a6 b3 f6 c2 Na3 b1Q Nf3 h2 Ng5 b2 Nh7 Qa5 Qd2 Bh3 Bg2 Nh6 g8B Qb6 g7 Ng4 Kf5 e4 Kg6 e3 Qe2 Be7 f8R Nc6 Bf7 Na5 g8B Nb3 Be8 Bd8 f7 Qa2 Bd2 c1Q Bc3 Qd2 Rag1 Nf2 Nc4+ Kc7+ Bc6 Rc8 Bf3 Bg5 d6+ Kb8 d5 Ka7 d7 Nd3 d8R b1B d6 Be6 d7 Ndc1+ Bce4 Rc5 Be5 Qd4 Nb2 Na1 Qd2 e2 Bh5 Nc2 Bef3 e1Q Rg4 Be3 Rh4 Bg5 Rg1 h1Q Qh2 Bd2 Rg2 Qef1 Rf2 Qd1 Rfe8 Qdf1 f8Q Na1+ Qf5 Qd1 Re7 Qhg1+ Bg2 Qf3 Rg7 Qa8 Bf7 Rf8 Bf3 Qba5 Qe4 Kb6 Be8 Kb5 Bf7 Nc2 Qb7+ Qb6 Qa7 Kb4 Rc8 Kb3 d8Q Kc3 Be8 Rf5 Rc6 Na1 Rd6 Kc2 Qdc7 Rf7 Bh5 Rf8 Bc6 Rf4 Re2 Rf2 Bcf3 Rf1 Na4 Kd3 Rf2 Rc4 Bb7 Rc3 Bbf3 Rc5 Nb2+
4n3/2RRk1P1/5q2/N1BQ1rR1/3rrQqN/r1r3n1/BNBb2b1/K1N1R1n1 b - - 0 1 illegal: No possible last move, all moves rejected
1N4k1/4Pnn1/bBR2r2/b2K2QQ/4r2b/q3QQq1/1RB1qqNB/R3R2q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 Ke4 a5 h4 f3 d4 f6 b4 Kf7 d6 a4 d5 g4 h6 g3 d7 f2 h7 a3 b6 g2 h5 c4 h6 a2 d6 f5+ Kd5 c3 e4 c2 b5 f4 b7 f3 b6 Na6 b8Q Be7 b7 Bg5 e5 Bf4 e6+ Kf8 Bd3 f1Q Na3 f2 Nf3 g1B Ne1 Qe7 d8Q+ Qe8 d7 Qe2 Ng2 f1Q Qe5 Bb6 b8R Nc5 Qdg5 Bg3 d8B Ba6 Qee3 Qg6 Nc4 Qff2 Re1 Ba5 Rb2 Bh4 Bb6 Re8 Ne5 Qg7 Bd2 c1Q Nc6 Qc7 Nb8 Qcg3 Bc2 Re7 Rb5 Qa3 Rb2 Rf7 Bc3 Rf6 e7+ Kf7 Bb4 Ne6 Bd6 Ng7 Qdd3 Qh3 Bh2 Qhg3 Rad1 a1Q Qde4 Qb4 Q4f3 Qaa3 Rdb1 Qbg4 Ra1 Q4h3 Nf4 Qhf1 Ng2 Qh1 Rb3 Rf4 Qfe4 Rg4 Rb2 Nf5 Q4f3 Re4 Nf4 Ng7 Ng2+ Nf6+ Kc6 Rf8 h8R Rd4 h7 Re4 Qfg4 Ng8 Kd5 Nh6 Rg8 Ngf5 Rg6 Ng7 h8Q Nhf5 Bd1 Nd6 Qhh5 Kg8 Bc2 Rff4 Rh6 Nf7 Rc6 Rf6 Qgf3
2nB2R1/P3Q3/b2b1K2/B1Q5/2qQ1RrR/N1q1rB1q/qRbNqnQ1/4k3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 Kh4 d4 g5 a4 b5 f4 c5 d6 c4 h6 c3 h7 g4 h3 Kg3 h4 Kf2 d7 g3 h5 g2 d5 b3 h6 b4 d6 b2 f6 b3 f5 c2 a5 Qe8 d8Q Ba6 f7 Nf6 d7 Rg8 h8Q Rg4 h7 Ne4 Qf3+ Ke1 f6 Nf2 Na3 b1B Ra2 b2 Rh4 Nc6+ Kf5 e5 Be2 e4 Qe7 e3 d8B Na7 Qd5 Bb7 a6 Nc8 a7 Ba6 Bf3 e2 Bg5 Qc6 Ba5+ Qc3 Qdc5 Rb8 Qg8 Rb3 h8Q c1Q+ Ke6 Bc2 Qgg7 b1Q Rb2 Qf4 Qgg8 Bh6 f8R Qa2 f7 Qd4 Bf6 Bf4 Qgg5 Bb8 Rg8 Bd6 f8R Qdb4 Qhg7 Qcc4+ Qgd5 Re3+ Kf7 Qd2 Bg5 Qdb4 Kf6 Qd2 Qdd4 Qdc3 Nh3 g1Q Rf7 Nd1 Nf2 Qf1 Ne4 Qh3 Nd2 Nf2 Bh6 Rge4 Qg2 Rg4 Bg5 Kd1 Bd5 e1Q Bf3+ Qee2 Bf4 Bb8 Bfc7 Ke1 Bd8 Bd6 Rfh7 Rg7 Rf4 Rg4 Rh4
1n1r3B/1B3Rr1/P5kB/rnNQ1rbr/5q2/rr1N3R/1NBR1Q2/1NKb4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 Kd2 b5 g6+ Kf6 d6 b3 g7 c4 g5+ Kf7 d7 e4 g6+ Kf6 a5 h4 a6 b2 d5 b4 d6 h3 Qe1 h2 Ne2 b3 Qf2 Qc7 d8B+ Be7 d7 Ra7 Nec3 Qc6 Nd1 Qc7 Bg2 Nh6 g8B Nf7 g7 Nd6 Ra2 Nb5 Bh7 Kf7 g8N Bg5 f6 Qe5 Ne7 e3+ Ke2 c3 f5 c2 Ng6 Rf8 Bb7 Qf4 Be7 Rh8 d8Q Be6 Bd2 c1R Qd5 Rc3 Bf8 Rc5 Bg7 Rd8 Bh8 Rc3 Ke1 e2 Bc1 Re3 Kd2 e1R Ne5+ Ke8 Qg1 Rf1 Nd3 Bf7 Qg3 Bh5 f7+ Ke7 f8N Bf3 Qe4+ Kf7 f6 Be2 Qf2 Bh5 Rg1 h1R Ne6 Be2 Bf5 Rh5 Rh1 Bg4 Nc5 Bf3 Na3 b1R Rh3 Ra1 Nb1 b2 Kc2 Be2 Qc6 Re5 Be4 Rf5 Qd5+ Kg6 f7 Rg1 f8R Rg3 Rf7 Re3 Nbc3 b1R N1b2 Rf3 Be3 Bd1+ Kd2 Rc1 Nb1 Rc3 Ra5 Rg3 Ra2 Ra3 Kc1 Rb3 Nc4 Rf3 Rd2 Ra5 Ncb2 Rba3 Bed4 Rb3 Bdg7 Re3 Bh6 Rba3 Ne1 Rec3+ Bc2 Rcb3 Bc6 Re7 Bb7 Rc7 Ned3 Re7 Rf8 Rg7 Rf7
Q1r1n2b/1N1b1k2/4N3/Bq1q2bK/1bR2QRN/1r1n2Q1/1N2B1QP/1n3q1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 g5 d4 f5 b4 c5 e4 a4 d6 a3 d5 a2 e5 c4 d7+ Ke7 b6 c3 d6+ Ke6 b7 c2 b5 Ra7 h6 Be7 b6 Qe8 d8N+ Kd7 h7 Nf6 Be2 Nc6 b8Q Rb7 Na3 Nb4 Nc4 Nd3 Bd2 c1B Qf1 Qg8 e6+ Ke8 Nb2 Bd7 Rb1 a1B Ba5 Be3 Rc1 g4+ Kg2 g3 Kh3 f3 Kh4 f4 Rc4 f2 Qg2 f1N Nf3 Bf8 e7 Nd2 Rg1 Nb1 Ne6+ Kf7 Qa8 Rb8 b7 Ne8 Kh5 Bc1 Nh4 f3 Rc2 f2 Rc4 Rc8 b8Q f1Q Qae4 Bg5 Qg4 Qg7 Qf4+ Qf6 Qba8 Qf5 Qb8 Rg8 h8Q Qd1 Qc3 Qb3 Qba8 Qb5 Nc5 Rg6 Nb7 Rf6 Qb3 Qfd5 Qa3 Bf5 d7 Rb6 Qh3 g2 d8N+ Kg8 Qa2 Bd7 Qhg3 Kg7 Ne6+ Kg8 Rf1 g1Q Rf2 Qf1 Rg2 Qa4 Rg1 Rb3 Rg2 Qab5 Rg1 Nc7 e8B Bb4 Bg6 Ne8 Be4 Qf5 Bh1 Kf7 Qgf2 Qd5 Rg4 Qb5 Q2g3 Qd5 Nd1 Bh8 Nb2 Qb5 Qa4 Qd5 Qc6 Qb5 Qce4 Qd5 Qeg2 Qb5 Qd6 Qfd5 Qdf4+
2K1B1r1/B2N1r2/1b2q1qq/1RbnR2Q/2b1B3/NQn1rN2/Bk1NbP2/3R4 b - - 0 1 illegal: No possible last move, all moves rejected
2K2R1Q/R1N1Bb1r/3q1rBQ/1q2q2N/N3Q3/nQ3n2/1bN1P3/2kRr1bb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 g5 h4 c5 h6 a5 d6 f5 d7 g4 Ke6 c4 h5 c3 b6 c2 b7 Kb3 h7 a4 d5 g3 d6 f3 h6 g2 Qd4 f2 Nc3 a3 Nh3 g1Q Bg5 c1B Qe4 a2 Na4 f4 Bg2 f1B Be7 f3 Nf4 f2 Nh5 Nc6 b8N Qc7 Na6 Na5 Nb4 Nc4 Nc2 Na3 Bf3 Bb7 d8N Qg5 d7 Bg2 Rd1 f1R Rd2 Nf6 Bg4 Rb8 Bf5 Ng4 Bg6 Rf4 Qc6 Ne5 Qe4 Qc8 Kd6 Bh1 Ne6 Rf6 d8R Nf3 Re8 Bg7 Rf8 Qcc5+ Kd7 Bd5 Nc7 Rb5 Kc8 Qd6 Nf4 Bf7 Nh5 Rg8 h8Q Rb7 h7 Qb5 Bd8 Bh6 Be7 Be3 Qg7 Bg1 Qh6 Rg7 h8Q Rh7 Nd4+ Kc4 b4 Bb2 Nc2+ Kb3 Q8g7 Qbd5 b5 Ra7 b6 Qb5 b7 Ra5 Rf1 a1Q b8Q Ka2 Rf2 Kb1 Qh8 Kc1 Qbb7 Ra6 Qbd5 Rc6 Qb3 Rc5 Rh2 Rg5 Rh4 Rg2 Rh2 Rf2 Rg2 Rf1 Rg5 Re1 Rgd5 Qc4 Ra5 Qb5 Ra7 Qa2 Qbb4 Qad5 Qb3 Q5e5 Rd1+
6NB/r1N1Q1N1/nr1R1K2/Qb2Q3/1k4qN/b2nrB1P/RB2nb2/1B2n1q1 b - - 0 1 illegal: No possible last move
1RR1bKR1/5BBr/1nqRb3/4qBr1/q2kBNNn/3b1rPQ/3Q3N/4b3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 e4 h5 b4+ Kb6 d4 c5 d6 f5 d5 h4 g6 c4 g7 c3 d7 a4 Ke6 h3 Kf7 f3 d6 h2 e5 f2 g3 f4 e6 c2 e7 a3 e8B f3 Qd2 a2 Nh3 Ne7 g8B Ra6 Bg2 f1R Bh7 f2 Nf4 Ng8 Bf5 Ra4 Bge4 Rh6 Bb2 c1Q Bg7 Qh4 d8R Ra5 d7 Ne7 Rg1 Bb7 Rc8 h1B d8N Rh7 Nc6 Ng6 Ne5 Nd7 Ng4 Bc6 Kg8 Bd5+ Bf7 Be6 Rg2 Be7 Rh2 Qg5 Rh6 Nh4 Rf6 Qc6 Rg6 Kb7 b6 Qh5 b5 Bb4 Qd4 Be1 Nd2 Bf3 Rd1 a1Q Qc3 Bh1 Nf3 Qa4 Nfh2 Qg5 Rd5 Qf6 Qd2 Qe5 Rd6 Bf3 Nh6 Bh5 Rg4 Nf6+ Kf8 Nd5 Bg8 Be8 Bf7 Rg1 Rg5 f1B N6g4 Bd3 Rg6 Rf1 Rg5 Ra8 Rg6 Rb8 Rg5 Rf3 Rg6 Ka8 b7+ Ka7 b6+ Ka6 Rg5 Kb5 Rg6 Ra8 b8Q Kc4 b7 Ra5 Qa7 Rc5 b8R Nb6 Qaa5 Rb5 Qg2 Rd5 Qh3 Kd4 Qd2 Qa1 Bh6 Qaa4 Rg8 Qh8 B5g6 Qf6 Rd7 Qf5 Bg7+ Qf6 Rdc7 Rdh5 Bgf5 Rg5 Rcb7 Qe5 Rd7+ Kc4 Rd6 Kc5 Nd5 Kd4 Nf4+
r3n3/4Q1r1/3bN1Rq/1k1N2rR/bbR2qB1/BBn1RnP1/4Q3/KN2Nb2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 c5 Kd2 a5 Kc3 h5 b4 f5 Kb2 a4 b6 f3 g6 h4 e5 c4 b7 h3 g7 h2 b5 f2 b6 f4 d6 Kc6 d5+ Kb5 g3 f3 d7 Qe8 d8N Nd7 b8R Rh5 e6 Bb4 e7 Qf7 e8N Rg5 d6 Qf4 b7 Ngf6 g8B Ne5 Ne6 Bd7 Be2 f1R Ra3 f2 Ka1 Nf3 Re3 a3 Rc8 a2 Ba3 Re1 Rc6 f1B Rc7 Bc6 d7 Bd6 d8Q Bb4 N8g7 Ne8 Nf5 Bd6 Ne7 Rg7 Rd3 c3 Nd5 c2 Qe7 c1N Rc8 Bd7 Rc4 Bb4 Re3 Rg5 Bd3 Ne2 Bf5 Nc3 Qe2 Rd1 Bg4 Rg7 Nb6 Rd5 b8R Rdg5 Rd8 Bc6 Rd6 Bd7 Nd5 Bc6 Nh3 Bd7 Nf2 Bc6 Rg1 h1Q Nd3 Qh6 Rh1 Bd7 Rh5 Bc6 Ne1 Bd7 Kb2 a1B+ Kc2 Bb2 Rdc6 Bc1 Kb3 Bd2 Kb2 Bd6 Bf7 Na2 Ka1 B2b4 Bg6 Nc3 Bc2 Ka5 Rb6 Ba4 Rbc6 Kb5 Bb3 Be5 Nf8 Bb8 Rg6 B8d6 Ne6
1nBRn1n1/R6K/1N1R2n1/2Q1Bq2/1Q1bQ1N1/Q2Pr2N/b1q1b3/3N1qrk b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 e5 g4 c5 b4 h5 f4 a5 f6 c4 f5 h3 f7 c3 g5 c2 g6 h4 b6 h2 f6 h3 g7 a4 d3 a3 b7 a2 b5 Qa5 b6 Be6 Bh6 c1Q Qf3 Qc2 Qf4 Bg4 Bg2 Be2 Kf5 Qac5 Qb4 e4 Kg6 Ke5 d6 e3 d7 Qc8 d8R Bc5 f8N Bd4 Nc3 Rh7 Qa3 Qf5+ Kf7 Ra4 Nd1 Rb4 Bf3 Rb1 Bg4 Rc1 Bg5 Rh6 Bh4 Kf4 Nd7 Rh7 Bg5+ Kg3 Bf4+ Kg2 Be5 Rh6 Kf8 Rb1 f7 Re6 Nf3 Re7 Ng5 Rc1 Re1 h1B Rf1 h2 Nh3 Qg6 Rf6 Qf5 Rd6 Re6 Rb1 a1Q Rb4 Rb1 Ra4 Rc1 Ra7 Rb1 Nc3 Rg1 Qc5 Qaf1 Nd1 Bf3 Qa3 e2 Qc5 e1N Qa3 Ne7 g8N Be2 Kg7 Nf3 f8Q Nh4 Nh6 Nhg6 Kh7 Ng8 Qc5 Na6 b8Q Re7+ Bg7 Re3 Qbc7 Nb8 b7 Kg3 Qa3 Bd5 Be5+ Kg2 Nb6 h1N Qcc5 Nf2 Qe7 Ne4 Qh4 Qg5 Bc8 Kh1 Ng4 Qgf5 Qf2 Ba2 Qf4 Na6 b8Q Nef6+ Kg7 Ne8+ Kh7 Bb2 Qfb4 Bd4 Qbc7 Nb8 Qf7 Qe4 Qf4 Qf5 Qe4+
5BQ1/k1B1Q3/1b2q1qn/qb1rRQ2/R1R2b2/1P2bNRK/1r2B2n/N2B1n2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kd7 Kf2 a5 g4 e5 Kg2 c5 d4 Kc7 d6+ Kb7 f6 h5 d7 h3+ Kh2 e4 b3 c4 g5 c3 b6 e3 d5 a4 f5 a3 d6 a2 f7 h4 g6 e2 f6 e1Q g7 c2 Bf4 c1B Qd3 Rh5 Na3 Rd5 Qf5 Be3 Nc2 Nh6 g8B Nc6 Bh7 Nd4 Be2 Raa5 Rc1 a1B Nf3 Ra2 Rg1 Rb2 Rg3 Ka8 b7+ Ka7 b8R Ba6 Be5 Qda5 d8R Bb5 d7 Bc5 f8B Bb6 Bc7 Bf4 Bd1 Qe6 Re8 Be3 d8Q Bf4 Kh1 h2 Kg2 h1N f7 h3+ Kh2 Qg6 Re5 Qe6 Qe7 Qg6 Kg1 h2+ Kg2 Be3 Kh3 Bf4 Rg2 Ng3 Rd8 Nf1 Rg3 Qe6 Bg6 Be3 Bh5 Bf4 Rd6 Qg6 Rc6 Be3 Rc4 h1Q+ Nh2 Qe6 Ra4 Qe4 Bhe2 Bf4 Nf3 Be3 Qg4 Q4g6 Qf5 Bf4 Bg7 Be3 f8Q Bf4 Qg8 Be3 Nd2 Nf3 Bf8 N3h2 Nf3 Rb1 Ree4 Be5 Na1 Rb2 Rcc4 B5f4 Re5
1q1R1rb1/bQR1K2k/4B2B/3Bn2r/1nb2Q1P/1r3N2/1nr1R2q/R2NQB2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 f5 Ke3 Kf7 Kf4 Kg6 b4 c5 h4 a5 d4 a4 e4 a3 e6 c4 Ke5 a2 e7 g3 e8B+ Kh7 d6 g5 d5 c3 b6 g2 b5 f4 d7 g4 Ke6 c2 b7 g3 d6 f3 e5 f2 b6 Ne7 Bf4 c1N Nf3 g1Q Bh6 g2 Qe1 Nd5 Rh2 Nc6 b8Q Nd3 b7 N5b4 Bf7 Nb2 Nc3 Qh1 Qa7 g1R b8Q Rg3 Nd1 Qg1 Rg2 Qh2 Qab7 Qb6 Q8c7 Qa7 Kf6 Qb8 d8R Be6 d7 Bc5 Rc8 Ba7 d8R Bd5 e6 Ne5 e7 Be6 Rb1 a1R e8B Ra2 Ke7 Rf8 Ra1 Ra5 Bc4 f1B Bd5 Bc4 Re2 Ra2 Bb5 Rh8 Nd2 Rb3 Nf3 Rf8 Qd6 Rh8 Rc7 Rf8 Bh5 Bg8 Bg4 Rf5 Ba6 Rh5 Bd7 N2d3 Qf6 Rc2 Qf4 Nb2 Qc6 Qb6 Qb7 Rc8 B7e6 Ra8 Rd6 Rf8 Rd8 Qb5 Qc8 Qb8 Qb7 Rc1 Bb5 Rc2 Rg2 Bd3 Rf2 Be4 Bf1 Bd3 Rg2 Bc4 Re2
K3R3/Q2bn1nQ/BNrR1N1b/n1B4q/k1P2rn1/2B1Q2b/2R5/Br2R2q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 f4 g5 b4 e5 f6 a4 b6 Kc6 f5 Kb5 b7 g4 h6 a3 f7 g3 h5 a2 f6 g2 h7 Nc6 b8R+ Bb7 h6 Qd6 Qd2 Nge7 Nf3 g1Q Bb2 Ra4 Qe3 Ng8 Rh2 Nge7 Nfd2 Nf5 Re8 Qh1 Bc3 Ng7 Ne4 Qc5 Nbd2 Bc8 Re1 a1N Nc4 Nb3 Nb6 Ne7 Rd8 Bg4 Rd6 Na5 Be2 Rg8 h8Q Bd7 Qh7 Bh3 Qg6 Bd7 h7 Bh3 h8B Bd7 Kd2+ d3 Qh7 d4 Bf1 Ne6 Ba1 Bh6 f8R Rg6 f7 Ng7 Nf6 e4 Re8 Qh5 f8B Bh3 Kc1 Bd7 Kb2 Bh3 Rhe2 d2 c3 d1B Rc2+ d3 Be2 Nc4+ Kb3 d2 Bd3 Bdg4 Bf1 Ka6 b5+ Ka5 Bd3 d1N Be2 Ne5 Bf1 N5c6 Bd3 Ra2 Kc4 Nf2 Bf1 Bf5 Kc5 Ng4 Bd3 Ra4 Bc4 Nce5 Be2 Nc4 Bd3 Nc8 Kc6 Bd7+ Kb7 Ne7 Ka8 Rb4 Na4 Rb1 b6 Rb4 b7 Kb5 Qg1 e3 Nb6 e2 Qe3 Rb1 Qf3 Rb4 b8Q Ka5 Qa7+ Kb5 Be4 Na5 Bb7 Rf4 c4+ Kb4 Qe4 Kb3 Ba6 Ka3 Rg1 e1R Rf1 Rb1 Re1 Rg5 Bc3 Rc5 Ba1 Rc6 Qe3+ Kb4 Ng8 Ngf5 Bhc3+ Kb3 Nf6 Ng7 Rdd2 Ng8 Bc5 Ne7 Nc8 Ka4 Rd5 Rd1 Rd6 Rb1 Nb6+
2n2k2/2q5/2r1Q3/1Qr2qP1/2bN1bnR/QNK1BR2/bnBNN3/2R1Qq1n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 g4 a5 d4 c5 Kd2 a4 b6 e4 d6 h3 d5 h4 g5 a3 b5 e3+ Kc3 e2 f6 e1Q+ Nd2 h2 b7 a2 b6 c4 f5 h3 Bd3 Rh6 Ne2 Nd7 b8Q Qf1 b7 Qc7 Qe1 Ra5 Bc2 Nb6 d7+ Kf7 d8R Be6 d6 Nc8 d7 Bd6 Qa7 Rd5 b8Q Rc5 Qa6 Bf4 Qbb5 Rg6 Re8 Nh6 d8Q Ng4 Qa3 Bd5 Qd6 Rh6 Re7+ Kf8 f7 Re6 Qda6 Rec6 Re3 Be6 Rb1 Bd5 Rf3 a1Q+ Qab2 Qa4 Qa3 Qaa5+ Rb4 Be6 Rg1 h1B Qab6 Ke7 f8N h2 Nd7 Bg2 Q6a6 h1N f6+ Ke8 f7+ Ke7 Rh3 Bgd5 f8N Kf7 Rf3 Kg8 Kd4 c3 Qab6 Bf7 Ne6 Bb3 Kd3 Ba2 Nd4 Kg7 Ne4 Bfe6 Be3 Bg8 Nd2 Kf7 Nb8 Kf8 N4b3 Bc4+ Kd4 Qh7 Q6a6 Qac7 Qab6 Qf5 Ra4 Rg6 Qe6 Rh6 Nc6 Rg6 Bd3 c2 Kc3 c1N Bc2 Nd3 Ncd4 Nb2 Qg3 Qh3 Rc1 Qf1 Qe1 Rh6 Qed7 Ra6 Qe6 Rc6 Ra7 Qb8 Rh7 Qc7 Rh4
1R3r1n/1NqN1bR1/4BB1b/1B3nP1/bB1nq3/1kr4R/4RKQq/4QN1b b - - 0 1 illegal: No possible last move
3RR3/3n2Qq/K2N4/Qn2P1BR/3B2b1/q1qQ2n1/rBb3N1/1k1QbnrB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 Ke2 Ke5 Kd3 g5 Kc4 c5 b4 f5 b6 a5 Kb5 Kd4 b7 g4 h6 f3 d6 g3 d7 f2 h5 g2 h7 a4 h6 c4 Nh3 g1N Nf4 a3 Nc3 a2 Bg2 f1B Rh5 Qh4 d8Q+ Nd7 b8Q Bd3 Qa5 Ne2 Qbc7 Bc2 Bh1 Ng3 Ng2 Kd3 Qe5 f4 Qg7 Ngf6 Rb1 Rg8 h8B a1Q h7 Ra7 Bb2 Rb7+ Ka6 f3 b5 f2 b6 f1N Nb5 c3 Nd6 Ne8 e5 Rc7+ b7 Qa3 Qg6+ Qe4 Bf6 Rc5 h8Q Nc7+ Ka7 Rc4 b8B Ra4 Qhg7 Qf5 Bg5 Nb5+ Ka8 Be7 Ba7 Bf6 Bd4 Bd8 Q6f7 Qh7 Qb3 Bb6 Qd5 Bc5 Ra1 Bb4 Qb3 Bb1 Qd5 c2 Ra2 c1Q Ra1 Nc7+ Ka7 Qcc3 Q5b3 Bc2 Qd5 Nf6 Qb3 Be6 Ra2 Nb5+ Ka6 Bg4 Ra1 Nd7 Rc1 Bb1 Qd5 Qcb3 Rc8 Bc2 Re8 Qc4 Nf7 Qcc3 Q5f3+ Kc4 Nd6+ Kb3 Qd3 Ka2 Qc4+ Qab3 Qh8 Qh6 Bh4 Ne2 Bb6 Bf3 d4 Qd3 d5 Nf6 Nb7 Be1 d6 Qc3 d7 Qh7 d8R Nd7 Nf4 Rg1 Bg5 Bg4 Qcd3 Neg3 Nd6 Ra3 Ng2 Qbb4 Bbc1 Kb1 Bd4 Ra2 Qg7 Qba3 Bb2+
bRB3rb/3rB1BN/1Q5K/3nPkQ1/NB2qqrn/Rr6/1n1Rb3/2R4N b - - 0 1 illegal: No possible last move, all moves rejected
q1n5/3rQQ1B/4bKQ1/2P1B2q/1bBRNn1Q/4b1Nb/RBq1r3/1kRn4 b - - 0 1 illegal: No possible last move
2q2Nr1/1Nb5/Bq1R1BN1/P1Q5/BR1qrBbr/1b4QN/n2k2n1/2Rb1K2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 f6 Kg6 a5 b5 f7 e4 d6 e3 d5 h4 d7 e2 d6 c4 Bb2 b3 Qc1 h3 Ra4 b4 Ba1 h2 Nc3 b2 Ra2 b1B Na4 c3 Rb2 c2 Nc5 b3 Nb7 Nh6 Nh3 Ba2 Rb1 Qf6 d8R b2 d7 Bd6 Rg1 h1B f8N+ Kf7 f5 Na6 Ng6 Bb3 Qe3 Nb4 Qc5 Qd4 f6 Ke6 f7 Na2 Rc1 b1Q f8N+ Kf7 Rg3 Nf5 Re3 Bf3 Re4 Nh4 Bb2 Qd5 Be5 Bc7 Rb4 Ng2+ Kf2 e1R Ba6 Re4 Kf1 Rc4 Re8 Qe4 d8B Qd4 Re6 Rh4 Bdf6 Bd1 Rd6 Bf5 Nd7 Rah8 Ndf8 Be6 Ne7 Rg8 g6+ Ke8 g5 Beg4 g7 Kf7 Neg6 Qbb2 Qb5 Qb6 Qc5 Re4 Ra1 c1Q Rb1 Qd4 Ra1 Rgh8 g8B+ Ke8 Be6 Rg8 Bd7+ Kf7 Ba4 Qcc3 Rc1 Qc2 Rd8 Qcc3 Nd7 Ke6 Ndf8+ Kf5 Rd6 Qg3 Ngf4 Qgc3 g6 Qc2 g7 Qcc4+ Nd3 Qe6 Ndf4 Qc8 N4g6 Re3 Rc2 Ke4 Rcc4 Kd3 Rc3+ Kd2 Rc1 Rgh8 g8Q Re2 Qg7 Re4 Qg8 Bbc2 Qb3 Rg8 Qg3 Bb3 Bf4+
1R2b2N/1NQ3Bn/2nn1Q1P/4r2B/1N2rqqR/2RK1k2/1b1N2R1/2b1Qn1q b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 f4 Kf6 h4 g5 b4 c5 d4 e5 d6 a5 b6 e4 d7 a4 b5 e3 d5 a3 b7 c4 d6 g3 h5 a2 h6 c3 b6 g2 Qd2 g4 Qd1 c2 Na3 g3 Nf3 g1Q Nd2 Ra4 Rh4 Nc6 b8Q Nge7 b7 Qh1 Qc7 g2 b8R g1Q Bb2+ Rd4 Bc3 Bg7 Rc1 Qf8 d8N a1N Nb7 Bd7 Bh3 Qg3 Bg4 Nc8 Bh5 Rg8 Qf1 Be8 d7 Nd6 d8N Qg5 Nf7 Qg4+ Nf3 Nb3 Nh8 Nd2 Qf2 Na5 Rg1 c1B Nc2 Nc6 Rg2 Nf1 Nb4 Qgh3 Nd2 Qg4+ Ke1 e2 Qg3 Nh2+ Kf2 e1N Ke3 Nef3 Qe1 Ng5 Ba1 Nh7 Bb2 Bd7 Ba1 Ke7 f6+ Ke6 f5+ Ke5 f7 Be8 f6 Kf5 Bb2 Rf4 Kd3 Nf1 Kc2 Rd4 Ba1 Kf4 Bb2 Qe7 f8R Qe3 f7 Re4 Ba1 Bd4 Bb2 Rg5 Bc3 Ba7 Bg7 Qf2 Kc3 Rge5 Kc2 Bd7 Kc3 Bd4+ Kc2 Bdb2 Rfd8 Be8 f8Q+ Nf5 Rd3 Qe3 Qfe7 Nd6 Rc3 Qg3 Nb3 Qgh2 Kd3 Kf3 Qf6+ Qf4 Nd2+
2qbnQ2/N4N1q/QNbr1PBb/B4N1B/2B2n2/3r3n/1Q1R3q/k1KR1q2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 g4 Kd7 d4 Kd6 Kd2 h5 f4 e5 b4 c5 f5 a5 g6 h4 g5 h3 f6 a4 g7 a3 g6 h2 b6 e3+ Kc2 a2 b5 e4 b7 c4 b6 e2 Bg5 e1Q Qd3 e3 Nf3 e2 Bd2 c3 Nh4 Qc7 Na3 Na6 b8Q Qg3 b7 e1B Be2 Ne7 g8B Bd7 g7 Ng6 Bh7 Nf4 g8B Bh6 Bg6 Bf2 Rhf1 h1N Beh5 Qh2 Qe2 Bg1 Rf2 Be8 Qf1 Rh7 Qc8 Rd7 b8Q Rd8 Re1 a1Q Qb2 Qh7 Qcb8+ Nc7 Nf5+ Kd7 d6 Kc6 d5+ Kc5 d7 Ra6 Rg2 Nf2 d6 N2h3 Nc4 Ra3 Rge2 Rb3 Qc8 Kb4 Qa8 Qa6 Rd1 Bb6 Rf2 Ka4 Qe2 Ra3 Qe7 Ba5 Qf8 Rb3 Kb1 Qb5 Qa6 c2+ Ka2 c1Q Bd5 Rb8 d8N Rb6 d7 Rd6 Nc6 Qc3 Kb1 Ra3 N4e5 Qf1 d8N Bd7 Be1 Ne8 Na7 Qc8 Ndf7 Bc6 Kc1 Rb3 Bc4 Rbd3 Qc2+ Ka3 Nd7 Ba4 Qe2 Bd8 Ba5 Bc6 Nb6 Rb3 Kc2 Ka2 Kc1+ Ka1 Qc2 Ra3 Rd2 Rad3 Qb2#
1n1Q1b2/qq4kP/RB2qn1N/b1NQ1r1Q/R6N/1K4Q1/r1R2R2/3b1rrB b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 a5 d4 g5 Kd2 c5 Kc2 e5 b4 e4 d6 g3 f6 e3 d5 g2 h5 e2 b6 e1Q h6 c4 d7 g4 f5 a4 d6 a3 h7 a2 b7 g3 b5 c3 b6 Na6 b8R Qe2+ Kb3 c2 b7 Qde7 d8N+ Ke8 f7+ Kd7 f6 Q7e3+ Nc3 Qe6+ Qd5 Nb4 Nf3 g1R Rh2 g2 Be3 c1R Bb6 Q2e4 Na4 Be7 f8R Nc6 f7 Nf6 Nh4 Re1 Be2 Ref1 Bf3 Ra7 Ra8 Nb8 Bd4 Ra6 Bb6 Rg8 Ra7 Rg5 Ra8 Rf5 Ra7 Ra5 Ra6 Nc6 b8Q Bb7 Rd1 a1B Rd4 Bc3 Rc4 Bd2 Rc2 Bc3 Rg8 Bb4 f8Q Ba8 Qh6 Bf8 Rg6 Ke8 Nc5 Ra2 Ra4 Ba5 d7+ Ke7 Qbf4 Nb8 Qg3 Bb7 Qh5 Bc8 Nc6+ Kf7 d8Q Ba6 Rf2 Be2 Ne7 Bd1+ Rc2 Nbd7 Ng8 Nb8 Qc4 Qb7 Qcd5 Rh1 Be4 g1Q Bf3 Qd4 Rf2 Rhg1 Bh1 Qf4 Qh3 Qfc7 Rh6+ Kg7 Qg3+ Kh8 Rg6 Qa7 Nh6 Qcb7 Rgg4 Bc3 Ra6 Ba5 Ng6+ Kg7 Ra4 Re5 Nh4+ Rg5 Qe5 Rf5 Qg3+
1b3qN1/qQ1R1bnP/7r/n1Q2RN1/R2r2Q1/1bq4R/2r1B2N/1r1kBK1N b - - 0 1 illegal: No possible last move, all moves rejected
1Rrb2qB/Nn2QPN1/brR3Qn/1r1k4/2Bn2B1/4q1R1/K2n2N1/2B3Nb b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 Kb3 e4 g5 e3 g6 a4+ Ka2 c4 g7 a3 b6 h3 b5 c3 b7 h2 b6 e2 f6 e1N f7 c2 f5 h4 f6 h3 Qd3 Rh5 Nc3 Rh4 Nb5+ Kd7 d6 Kc6 d7 Re4 d5+ Kc5 d6 Rc4 Qg6 Ra5 Na7 Nf3 Be2 Nh6 g8B Be7 f8N Nc6 b8B Nd2 b7 Nd4 Ne6+ Kd5 Bg4 Rb5 Bf7 Qe8 d8Q Qg8 d7 Rc6 Qe8 Bd8 Be5 Rcb6 b8R Bb7 Qe7 Ba6 Bb2 c1R Ng7+ Ne6 Bf4 Rc3 Rc1 Rc8 Ka1 a2 Rc6 Nc4 Bfc1 Na5 Nf5 Nb7 Nh4 Nd6 Ng2 Nb7 Be8 Nd4 f7 Nf3 Bh8 Nd2 Ne2 Nc4 Re1 h1B Ng1 h2 Re3 Nd2 Rg3 Qh7 Rb3 Qg8 Kb2 a1N Ka2 Nc2 Rg3 Bc7 d8N Nd4 Ne6 Bd8 Ne1 Be4 Ng7 h1Q Bed7 Qf3 Ng2 Qe3 Bdf5 Bf3 Bd3 Be4 Ne1 Bh1 Ng2 Nhf5 Bf1 Nh6 Bc4+
2bqR1B1/1kP2K2/R1nRnN1N/2Bb1q2/2r2Rr1/2N1nnbQ/2Q2r2/3Q3N b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 f4 Kc7 b4 g5 c4 e5 c5 a4 b6+ Kb7 h6 g4 f6 a3 h7 a2 b5 g3 f7 g2 f5 Qc7 h5 Qd8 h6 Na6 f6 Qd7 c6+ Kb8 b7 Ne7 c7+ Ka7 b8N Kb7 b6 Ng8 Ne2 g1R Ba3 Rg4 Nbc3 Qd8 Bc5 Ne7 Nd7 Nc6 Ng3 Bd6 f8Q Ra7 Qg7 Rf8 h8N Rf7 h7 e4+ Kd2 d3 Ke3 d2 Rh6 Ra8 Nh1 Bg3 Bc4 Ra7 Qc2 d1B Bb3 Rf8 f7 Bf3 Rd6 Ra8 Nf6 d4+ Kd2 e3+ Kd3 e2 Kc4 e1N Qg8 Bd1 Kd5 d3 Qg5 d2 Qh5 Rc4 Qe2 Rg8 f8R Nf3 Nf7 Rgg4 h8Q Ra7 Qe1 Be2 Re8 d1N Nh6 Bf1 Re4 Bg2 Rf4 Ra8 Qhh7 Rb8 Qd7 Ne3+ Ke6 Ra8 Kf7 Rb8 Bd4 Nc5 Qed1 Ne6 Bc5 Ra8 Rc1 a1Q Ba2 Qb2 Ra1 Raa4 Bb3 Rab4 Ra6 Qb1 Ba2 Rb2 Bb3 Ned4 Qdf5 Ne6 Qh5 Rg8 Qh3 Rg4 Qg1 Ned4 Qh7 Na7 Ra3 Ka8 Ra6 Rb4 Re6 Ng5+ Kg7 Rf2 Qd1 Be4 Rc6 Ndf3 Bg8 Bd5 Qhd3 Ra4 Q3e2 Qf5 Qec2 Rc4 Re6 Kb7 Re8 Kc6 Kf8 Ne6+ Kf7 Rb4 b7+ Rb6 Raa4 Rb4 b8R Rc4 Ra8 Kb7 Ra1 Nc6 Rb1+ Nb4 Ra6 Be4 Rd6 Bd5 Ra1 Nc6 Ra6
n1r1n3/P2B2b1/b1B4n/4Q1KQ/Rq3BN1/1r1kN2R/1Rb1B1qR/5qQn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 b5 Kf4 c5 d4 h5 g4 e6 a4 h4 d6 b3 a5 b4 a6 c4 d7 c3 d5 b2 f6 Kg6 a7 b3 f7 c2 d6 h3 Ra4 h2 Nd2 b1B Be2 b2 Nc4 Nh6 Ne3 Qb6 d8Q Bg7 f8Q Bf6 d7 Na6 Qfe7 Bg7 Qg8 Nb4 d8R Na6 Rd3 Ba2 Nh3 b1N f3 Rb8 Nf2 Nd2 Qg1 Bb1 Qge8+ Kh7 Qh5 Ne4 Rc3 Qb7 g6+ Kg8 g5 Nd6 Rd3 Nc7 Nfg4 Nde8 Qc5 Qa8 Qe5 Ba6 Rb3 Qc6 Rb2 Na8 Bd2 Rb3 Bc1 Bf6 g7 Kh7 g8B+ Kg7 Bd2 c1Q g6 Bc2 Bf7 Qf1 Bg8 Kf8 g7+ Ke7 Bh7 Qb7 g8B Bg7 Kg5 Qb4 f4 Qg2 f5 Kd7 f6 Kc6 Qb8 Kc5 f7 Kd4 f8R e5 Bd5 e4 Rf3 Rg8 Rh3 Rh8 Bf3 Kd3 Bf5 Rg8 Bd7 Rh8 Nc4 e3 Qe5 e2 Bf4 e1Q Ne3 Qef1 Bd1 Nd6 B5c6 Rc8 Qf2 Ne8 Be2+ Kd2 Rg1 h1N Rh2 Qge4 Rg3 Qd5 Rgh3 Qdg2 Bd1+ Kd3 Qg1 Qff2 Bdf3 Qff1 Be2+
bkrqbQ1R/2n5/b1nNB1QR/b3RK2/BNn5/1Pb2RBB/r4Q2/6b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 d4 a5 g4 h5 b3 f3 b6+ Kb7 g6 a4 g7 f6 g5 c4 d6 a3 g6 h4 d5 c3 d7 c2 d6 h3 Nd2 a2 Kf5 h2 e4 f2 e5 Nc6 e6 Rh6 e7 Rh4 e8B Ra6 Qe1 Rh8 Nc4 Ka8 b7+ Kb8 Bh3 f1B Bf4 c1B Ne2 Bd2 Nc1 Ba5 Nd3 Ra7 Rc1 a1B Qf2 B1c3 Bg3 Ra8 Nb4 Nge7+ Ke6 f5 g8Q f4 g7 f3 Re1 Ra6 Re5 Nd5 Kf5 Nc7 Qf7 Be7 g8B Be2 Rf1 h1B Qg6 Bg5 Be6 Be3 Nb2 Bb5 Nc4 Ka7 b8R Beb6 Qa2 Bg1 Rb6 f2 Qe2 Bb7 Qf3 Kb8 Qg2 Qc8 d8Q Ba4 Qe7 Qd8 d7 Ra8 Nd6 Bb5 Rc1 f1N Qf2 Nd2 Qf8 Nc4 Rce1 Bf3 R1e3 Bh5 Rf3 Ba6 Rbb5 Ra7 Rbd5 Rg8 Rd4 Ba8 Rh4 Qc8 d8R Rh8 Rd7 Qd8 Rh7 Rg8 Rh6 Rh8 Qgg8 Bf7 B8d7 Be8 Qg6 Qf6+ Ke4 Bb6 Beg4 B6b7 Rg5 Ra2 Re5 Ba6 Bge6 Ba5 Qe7 Bf7 Rh7 Rc8 Qf8 Be8 R4h6 Qd8 Kf5 Na7 Ba4 Nc6 Rh8
1R3N2/1r2r2B/3N1r1Q/1n2B1b1/1PbQn1K1/1qr3nR/QB1rBQ2/N1k1r3 b - - 0 1 illegal: No possible last move, all moves rejected
rr1b1Q2/1Nq5/1Q2Qr2/3R1PkB/b1Nn1r1B/b1B1n3/1N1K3R/rQr4N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kf6 d4 e5 g4 c5 d6 a5 d7 h5 b6 h3 b5 a4 d5 e4 b7 c4 g5+ Kf7 d6 a3 f6 Kg6 f7 h2 b6 e3 f5+ Kh7 g6+ Kh6 g7 a2 Bd2 h4 Bc3 e2 Nd2 h3 Qb1 Qe7 d8B Qc7 d7 Ne7 g8Q Nd5 Bh4 Ba3 d8N Nc6 b8Q Nd4 b7 Bd7 f8Q+ Kh5 Qe6 Ba4 Qbb6 Ne3 Rd1 a1R Bg2 Kg4 Bf3+ Kf4 Qb1 Rh6 Bh5 Rf6 Qa7 Rb8 Qab6 Ra2 Bb4 c3 Nc4 c2 Kd2 c1R+ Nb2 Rc4 Bc3 e1B+ Kd3 Ra1 Rd2 Ra8 b8N Bg3 Nbc6 Bf2 Bg3+ Kg5 Ne2 Rb8 Rhd1 h1R Ne5 h2 Nb7 Rf1 Rc2 h1R Kd2 Rb4 Nec4 Ra8 Qc1 Bg1 Qb1 Rf4 Be1 Bf2 Ng3 Rf1 Nh1 Bh4 Kd3 Rb3 Rh2 Rb5 Rdd2 Rg1 Bg3 Rc1 Rd1 Rd5 Kd2 Rdd8 Re1 Rdb8 Ree2 Ng2 Re5 Ne3 Rd5 Rg6 Qfb4 Kh6 Qed6 Bd8 Qe6 Kg5 Qf8 Rf6 Bh4+
bQn1R2n/2b1rrQr/1BN3P1/1K4RR/R1Qr1r1b/8/1N4BB/rQ1qk3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Ke4 d4 h5 b4 a5 f4 c5 f6 e5 b6 h3 g5 a4 f5 a3 b5 a2 d6 h2 d7 h4 b7 h3 b6 Rh4 f7 Ne7 f6 Ra4+ Kb5 c4 d5 c3 d6 c2 g6 Rf4 Bc4 Nbc6 b8B Bb7 Be3 c1R Ne2 Kf3 Bd5+ e4 Na3 Rd4 Nc4 Nc8 Nb2 Ba8 b7 Ne5 Qe1 Bg7 f8Q Rc7 Qb1 Nf7 Qg8 Nh8 f7 Be5 f8Q Rf7 Rg1 h1R Qfg7 h2 Rg5 Rf1 Bc6 Re7 Qc4 h1R Bg1 Rh3 Bh2 Kf2 Ba7 e3 b8Q Bf4 Bb6 Rh7 Bg2 Ra7 Rh5 Be5 Rg5 Ra4 Rh5 Rf4 Nd4 e2 Rg5 e1B Nc6+ Rd4 Qc3 Ke2 Qc4+ Kd2 Rh5 Rff7 Rg5 Bh4 Rh5 Qe8 d8R Qd7 Re8 Qg4 d7 Bc7 d8R Qd1 Rdd5 Ke1 Rdg5 Rdf4 Qbc2 Rd4 Rc1 a1R Qb1 Rdf4 Rc3 Rd4 Ra3 Rdf4 Qd5 Rae4 Qc4 Rd4 Ra4
r3r1nN/1B3KB1/q5P1/r1B2b2/rN5b/r4RR1/nrBNQ3/N1kbQ2Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 h5 g4 c5 g6 f5 d6 a4 d5 c4 g7 a3 g5 f3 b6 f2 g6 f4 b7 f3 d7 a2 Ke6 h4 e5 c3 d6 c2 Bh6 Kb3 Na3 h3 Bg2 f1B Qe2 c1R Nc2 f2 Nf3 h2 Nd2+ Ka4 b4 Ra5 b5 Be7 b6 Qf8 Rg1 Qd8 Kf7 h1R e6 Qc7 d8Q Qc5 d7 Bf8 e7 Rh3 e8Q Na6 b8N Qd6 b7 Rb1 Qh4+ Nb4 Na6 Be7 b8B Ra3 Bb7 Rb2 Qh1 Bh4 d8N+ Bd7 Rb1 a1R Rg3 Na2 Nab4 Qa6 Ba7 Bg2 Re1 Bf3 Bc5 f1R Q8e7 Rg1 Rf1 Bf5 Q7e6 Bh5 Rff3 Rg2 Qee1 Re2 Qc4 Re8 Qce2 Ne7 g8B Bhg4 Kg7 Bh5 Bc4 Ng8 Bd3 Bhg4 Kf7 Bh5 Nf1 Kb3 Bg7 R3a4 Nd4+ Ka3 Nd2 Bhg4 N4b3 Bh5 Rf1 Bhg4 Bc2 Bf3 Qe7 Bd1 Rff3 Nc1 Bc3 Nf6 Rg2 Rba2 Qg3 Ref8+ Kg7 Rb1 Nf7 Ra8 Qee5 Rhe8 Qge1 Ng8 Na1 Rb3 B3d4 Rc3 Q5e2 Kb2 Rg4 R2a3 Rg1 Na2 Nh8 Kc1 Rgg3 Rcb3 Kf7 Rb2 Bg7
1br1rb2/1K1Nr3/Q1Rr2NB/3R2b1/Bnn1b2k/2N2rqB/1P2B3/R1Q3R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 f5 Kc5 g5 d4 f4 h4 a4 e4 g3 b6 a3 b7 f3 h5 f2 e6 Kf6+ e7 g2 h6 g4 h7 g3 d6 a2 e8B Nh6 d5 Ng4 Bfb5 f1R Be2 Nc6 b8Q Rf3 Qb6 Nge5 Qa6 Bf5 Bd7 Nb4 Bh6 Nc4 Qc1 Rc8 e5+ Kg6 e6 Qg5 e7 Be4 Kb5 c5 Bh3 Kh5 e8B+ Kh4 d7 Rg8 h8N Rg7 d8R Re7 Nc3 Qf4 Rb1 a1R d6 Qe5 Qc6 Ra6 d7 Qg7 Qa8 Rd6 Qa6 Qg5 Ra1 Qe3 Nf7 Qd3 Ne5 Qe3 Bd3 Qe1 Nge2 g1R Nf4 g2 Bf1 Qg3 Be2 Re1 Rf1 g1B Nfg6+ Kh5 Bf5 Bh2 Rg1 Nd2 Bh3 c4 Nd1 c3 Ka5 c2 Nc3 Ra8 Rc8 Nc4+ Kb5 Rb8+ Kc5 Ra8 d8R Rb8 Rc7 Rc8 Ba4 Re8 Nd7 Re7 Qd2 c1B Rc6 Re8 Qc2 Bd2 Qc1 Bg5 Nh8 Kh4 Kb5 Ne3 Kb6 Nc4+ Kb7 Bh7 Bed1 R1e7 Be2 Be4 Ng6+ Kh5 Qf1 Rd4 Na2 Qg2 Nc3 Bb8 Qb1 Qg3 Qc1 Bc7 Nde5 Bb8+ Ka8 Rd2 Rd6 Rd4 Nd7 Rd3 Kb7 Rd5 Rf6 Rd3 Rf5 Rd6 Bhf1 Kg4 Rd5 Kh5 Bg2 Kg4 Bh3+ Kh5 Ne5 Kh4 Ng6+
RR1k1r1b/N1r1N1B1/1B1r2r1/NKB1nRbR/4BQ2/4r2P/2b4q/1Q4nb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 f5 Kd2 c5 Kd3 g5 Kc4 a5 e4 g4 b4 g3 d6 a4 d5 g2 b6 f3 b5 f4 h6 a3 d7+ Ke7 e5 f2 h7 f3 b7 a2 e6 Ra3 b6 Nc6 b8Q Nh6 b7 Rc3+ Kb5 c4 Qf4 Qc7 d8N Ng4 b8R Nce5 Nh3 g1R Nd2 Bb7 Bg2 f1B Nb3 f2 Be4 Bd3 Be3 f1R Na5 Bh6 Qb1 Rf8 h8B Rd1 Bg7 Nf2 d6+ Ke8 e7 Rg6 Ba7 Bg5 Bc5 Bc2 Ndc6+ Kd7 e8R Re3 Ra8 c3 Na7 Rd2 Reb8 Rd4 Nc8 Kd8 d7 Rdd6 Na7+ Ke7 Ng1 Nh3 Nf3 Ng1 d8B+ Kd7 Nh4 Ke8 Qbf1 Kd7 Re1 a1B Nf5 Bb2 h3 Ke8 Ne7 Bd5 Rh2 Kd7 Bd3 Bh1 Be4 Ba1 Rf2 Ke8 Rb7 Qb8 Bdb6 Bb2 Rc7 Kd8 Rb1 Rgf6 Rc6+ Ke8 Kb4 Ng4 Qf3 Rd7 Bh6 Bd3 Bd4 c2 Rc5 c1R Q3d1 Bf4 Rh5 Bg5 Rf5 Rg6 Qde1 Rc8 Bc5 Qh2 Bc7 Bh8 Qf4 Bc2 Bg7 Rdd6 Rb2 Kd7 Qb1 Ke8 Kc4 Kd7 Rb6 Ne5+ Kb5 Ke8 Rb7 Kd7 B7b6+ Rc7 Nec8 Ke8 Rbb8 Kd8 Ne7+
b1nN4/r2kBn1B/4nNn1/bR4R1/1N1QB2b/1Q4PB/2qrQN2/b3b1K1 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 c4 e5 f4 d5 Kf2 h5 b4 a5 f5 a4 b6 a3 b7 h4 b5 h3 g6 d4 f6 d3 b6 a2 c6 h2 c7 d2 c5 Rh5 g7 Rh6 g3 Nd7 b8N Bb7 c8Q Ne7 g8B Ng6 c6 Be7 c7 Ra7 Bh7 Nc5 Bg2 Ne6 Nh3 Ba8 Qa6 Qc8 Nc6 Kd7 f7 Bh4 b7 e3+ Kf1 e4 b8Q Rh5 Ba3 Rd5 Qbb3 e2+ Kf2 Rd6 Nb4 e1B+ Kf1 e3 Be4 Rd4 Nc3 e2+ Kg2 Rd6 Rb1 a1B Nf2 Rd5 Rf1 h1N Kg1 Rd3 Qac4 Rd6 Qdc2 d1N Ncd5 Ne3 Qd4 Nc4 Qcd2 Nce5 f8N+ Ke8 Qdd1 Nf7 Q1d3 Bd2 Qd3c4 e1B Qe2 Qd7 c8B Qc7 Rb2 Qc2 Rb1 Nc5 Bh3 Ne6 Nd7 Bdc3 Ne5 Kd8 Nec6+ Kd7 Nd8 Bcd2 Nd1 Bdc3 Rf3 Nf2 Rf5 Bcd2 Rg5 Bdc3 Beg2 Ne4 Nf2 Bcd2 Nbc6 Ba5 Ncb4 Nd2 Bh1 Nc4 Be4 Nb6 Na6 Rc6 Be7 Rd6 Nab4 Nc8 Rc1 Qd1 Rc5 Qc2 Rb5 Rc6 Nb7 Rc3 Nd8 Rd3 Bg8 Rd1 Bh7 Rd2 Nf6+
2Qn1N2/1b2Qbb1/r1rRN3/1n1R4/1bk3q1/Q3P1Bn/1Q1R1Bnb/1K3BB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Bg2 Ke7 h4 Kd6 d4 a5 Kd2 f5 Kc2 c5 b4 g5 b6 a4 b7 f3 b5 g4 h6 g3 b6 f4 h5 f2 h7 f1N h6 a3 Nh3 f3 Nf4 c4 Rh5 c3 Ng6 f2 Be3 a2 Qd3 Ra6 Nd2 Qh4 Ne4+ Kd7 d6 Ke6 d7 Nh2 d8R f1B Rd1 a1B Kb1 Nc6 b8B Bb4 b7 Nge7 Ba7 Ng4 b8B Nd5 Bh3 Rf8 h8Q g2 h7 g1N Rd2 Nc7 Qg8+ Rf7 h8Q Nb5 Rd7 Bb7 Qc8 Rf4 Rh6 Rf6 d5+ Kf5 d6 Ke6 Bg2 Nh3 Bg1 Ne3 Nf8+ Ke5 Bd4+ Kd5 Ng5+ Qe4 Rd8 Re6 d7 c2+ Kc1 Rg6 Bg3 Rf6 Qa3 Bac3 Bf3 Ng2 Bdf2+ Bd4 Bh5 Rd6 Bg6 Qg4 Bd3 Re6 Qg7 Bf6 Qe7 Bg7 Qf6 Rd6 Qfb2 Rf6 Re8 Rg6 d8Q+ Rd6 Qdc7 Nd8 e3 Rdc6 Rd6+ Kc5 Bf5 Bc4 Bd3 Bd5 Bf1 Bf7 R6d3 Kc4 Re5 Ba5 Nge6 Bb4 Qe7 Bd6 Bh4 Bb8 Rg5 Bh2 Bhg3 Bc3 Qba1 Bb4 Kb2 c1B+ Kb1 Bb2 Rd6+ Qe2 Rgd5 Bg7 R5d3 Qh5 Q1b2 Qg4 R3d5+
4BQQ1/bkb1K3/2rR1n2/2nQ3b/1r2N2b/nQPR2Nq/B2B4/4RBbn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 d5 Ke3 Kd7 Kf4 Kc7 e4 f5 b4 a5 h4 a4 c6 d4 e6 g5+ Ke5 g3 h5 f4 e7 g2 e8Q a3 h6 f3 h7 g4 Qh5 d3 Nc3 a2 Nge2 g1B Bd2 g3 Rh3 g2 Ng3 Nd7+ Ke6 f2 e5 Bd6 Nce4 Ngf6 b6+ Kb8 c7+ Kb7 b5 Rb8 Kf7 Nc5 e6 Qd7+ e7 Be5 Rb1 a1B Qhg4 Rg8 h8R Rg6 Rd8 Qf5 e8B Bd7 Bc3 d2 Ke7 Be6 Rd3 Bf7 Rh6 Qh5 Qe6 Qh3 Qb3 Bf4 Qh5 d1N Bd2 Nb2 Re1 Nc4 Qf3 Bd4 c3 Na3 Qh5 Bg5 Qf3 Bh4 c8B+ Ka8 Bf5 Kb7 Be6 Bh2 Qf5 g1B Bc4 Ka8 b7+ Ka7 Qd5 Be3 Ne2 Bc7 N2g3 Kb6 Qc2 Bd4 Ba2 Ka7 b6+ Ka6 Bg2 f1N Qcb3 Bde3 Ne2 Ng3 Bf1 Nh1 N2g3 Rg4 Rg6 Rc8 b8Q Rf4 Rh6 Bh5 b7 Rg4 Nd6 Rb4 Nde4 Bb6 Qf4 Rc6 b8Q Bc7 Qg4 Bef2 Qgg8 Bd4 Qbd8 Kb7 Qf8 Na4 Qdg8 Ba7 Qdd5 Nc5 Ng5 Nfe4 Rd6 Nf6 N5e4
QB3n2/3q2bN/qBb1B1k1/Bb1rb1Qr/1KN2RRb/2P4R/5bRN/1n6 b - - 0 1 illegal: No possible last move, all moves rejected
k1Q2n2/4n3/NBnR1bb1/3q2P1/KbQQN2R/2Q2Brn/4B1r1/1NNn1b2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 c5 Kc2 Kc7 Kb3 Kb7 e4 f5 g4 h5 g6 a5 b6 c4+ Ka4 h4 b4 c3 d6 f3 d7 c2 g7 f2 b5 f4 e5 f3 d5 h3 d6 h2 e6 Qf6 d8Q Nc6 e7 Qe6 e8B Nge7 g8Q Qd5 g5 Bf5 d7 Rh3 Be2 f1B Qd4 f2 B8h5 Bg6 Qc3 Rg3 Be3 c1N Bhf3 Nd3 Ra2 Ra6 Rd2 Nde5 Qe8 Rg2 d8Q Nd7 Qe6 Rg3 Qg4 Ra8 Qgc4 Rb8 Qc8+ Ka8 Qed8 Rg2 Nh3 Rg3 Nf4 Rg2 Nd3 Rg3 Ka3 a4 Nc1 Rg2 Qdc7 Rg3 Q7e5 Rg2 Qed4 Rg3 Ka2 a3 Kb3 a2 Ka4 a1B Rd3 Bh3 Rdd1 f1N Bf2 Ne3 Rd2 Qc5 Rd3 Bf1 b7+ Ka7 Rd2 Nd1 Rd3 Ra8 b8N Rg2 Na6 Rb8 b6+ Ka8 Be3 Qd5 Nc5 Rg3 Rg1 h1N Ne4 Nhf2 Rh1 Bb2 Rh4 Nh3 Qd2 Bc3 Bg1 Bb4 Q2c3 Bg7 Bf2 Nf8 Be3 Bf6 Rd2 Bc5 b7+ Ka7 Rd3 Ra8 b8N Rg2 Qd8 Kb7+ Na6 Bb4 Qe8 Rb8 Qd7+ Ka8 Qc8 Rg3 Qb6 Qd8 Rd5 Ba5 Bd3 Qd7 Bd4 Qf5 Rd6 Qd5 Qd7 Rb7 Qbc5 Rb2 Qc8+ Nb8 Bg1 Rbg2 Bde2 Bb4 Q5e3 Qc5 Qed3 Qf5 Bb6 Qd5 Qd7 Nbc6 Qdd4 Qc5 Qc7 Qd5 Qc8+
2N1q2k/4N1b1/B1QQ4/1P2RNB1/b2bBr2/Kb1Nb3/n1qr1R2/2nBbR2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 d4 a5 Kd2 g5 Kc2 c5 Kb3 f5 e4 Kf7 h4 Kg7 h5 f4 d6 f3 h6+ Kh7 e6 a4+ Ka3 g3 b4 g2 e7 f2 e8B g4 d7 g3 e5 c4 b6 c3 d5 c2 b7 Qb6 d8N Qa6 e6 Qc6 d6 Ra7 e7 Bg7 d7 Ra6 Nf7 Nf6 d8R Nh5 Rh2 Rf8 Rd5 Nf4 Nf3 g1B Re5 g2 Ne1 Bd7 Qf3 Ne2 Bg5 Nc1 Nd6 Rf4 Bg6+ Kh8 e8B Ra7 h7 Na6 Bc4 f1B b8Q Bd4 Nc8 g1B Nd2 Bge3 Rf2 Rb7 Bb3 Bc4 Nf1 Qe6 Bef7 Qe8 Ng3 Bc3 Nd3 Be1 Qd5 Bc6 Qbd6 Rd7 Be4 B6b5 Ba2 Bb3 Bh5 Bc6 Bd1 Bb5 Q5c5 Bc6 Nb2 Bb5 Qdc6 Rd2 Q6d6 Bc6 Nf5 Bd7 Nd3 Bc6 Kb2 Bb5 Qcc6 a3+ Kc3 B5a4 b5 Bf7 Bad5 a2 Kb2 Nb4 Ka3 Be6 Rb1 a1B Nfe7 Ne2 Qcc7 Na2 Nf5 Bad4 Bb7 Beb3 Ba6 c1Q+ Nb2 Rc2 Qcc6 Rd2 Ra1 Qc4 Bdc2 Qc3 Rd1 Nec1 Nd3 Qc4 Rg2 Bh4 Rf1 Be1 Bd1 Qc2 Rgf2 Bf6 Nh6 Kg7 h8N Bd5 Ng6 Bdb3 Nge7 Kh8 Nhf5 Bg7 Re2 Qf8 Rg2 Qe8 Rgf2
rb4N1/nb1Q1N2/5Q2/qB2nQKR/4QPnN/2rb1RB1/1k1NB3/nr3r2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 b4+ Kd4 g4 a5 b6 h5 f6 c5 d6 h3 b5 c4 f7 a4 d7 c3 b7 c2 b6 h2 g5 a3 g6 h4 g7 a2 Kg5 h3 Nf3+ Ke4 d4 Ra3 d5 Rc3 d6 Nh6 g8B Nc6 b8N Ba6 b7 Na7 Nc6 e5+ Ne7 Qa5 b8Q Ng4 Bf4 c1N d8N Nd3 d7 Bg7 f8Q Bc4 Rg1 h1R Rg3 h2 Qb4 Rg1 Rh3 h1B Rh5 Bg2 Bg3 Bh6+ Kg6 Bf4 Nh4 Bh1 f3+ Ke3 Be6 e4 Qf5 Bb5 Nf7 Ra8 d8Q Bb8 f4 Nde5+ Kg5 Bg2 Q1d6 Bd3 Bd7 Bh1 Na3 Kd2 Qdf6 e3 Bb5 e2 Nb1+ Kc2 Nd2 e1R Ng8 Bb7 Qbe4 Kb2 Be2 Rh1 Qdc8 Reg1 Rf1 a1N Rf2 Rb1 Qcd7 Rhf1 Rf3
3r1rnb/Kbnn1BP1/3B1N2/3qN2r/Rn1k1QN1/4RbrR/1N6/2B1Q2B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 b4 Ke5 e4 h5 d4+ Kd6 e5+ Ke7 b6 f5 e6 Kd6 b7 c5 e7 a5 e8N+ Kd7 b5 f3 Ke3 f2 b6 h4 g6 a4 g5 a3 d6 Ke6 d7 Kd5 g7 c4 g6 a2 Bg2+ Ke6 d5+ Ke5 d6 f1R Rh3 c3 Qe1 c2 Nf6 Rh6 Na3 Rh5 Bh1 Na6 b8B Nc7 b7 f4+ Kd2+ Kd4 Nc4 f3 Nb2 f2 Nf3+ Kc5 Kc3 Rg1 Ne5 f1R Kb3 Kd4 Kb4 Rg3 Nfg4 Qg5 d8R Be7 Rd7 Bf6 Re7 Rf4 Nd7 Qd5 Re3 Be5 Ndf6 Rff3 Rb1 a1N d7 Nb3 d8N Nc5 Nf7 Nd7 Ra1 Rf1 Rh2 h3 Ra4 Ne6 Bd6 Nc7 b8Q Bb7 Qe8 Rd8 Qf8 Nh6 g8B Rff5 Ne8 Bh8 Nfe5 Rf6 Bf7 Ng8 g7 Rf4 Rhe2 h2 Nef6 Rf1 Rc3 Rf2 Ree3 Rff5 Be4 h1B Rca3 Bf3 Rac3 Bd1 Bh1 Bf3 Rca3 Qb3+ Ka5+ Qc4 Bd2 c1N Rab3 Nd3 Bc1 Nb4 Rba3 Nc5 Kb6 Nd7+ Ka7 Qd5 Rac3 Rh6 Rc2 Rhh5 Rh2 Rf4 Rh3 Rh4 Be8 Bc8 Nh7 Bb7 Qf6 Rf5 Qg5 Rf7 Nhf6 Rf8 Bf7 Rh5 Qf4+
1KB3R1/8/q1BQr3/1n2Q1N1/n1nN2k1/R2bQ1q1/rqNbQP2/BN2qn2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 h5 g4 c5 b4 a5 f6 a4 b6 h3 f7 a3 b5 h2 b7 a2 b6 c4 d6 c3 d7 h4 Bh3 c2 Bb2 c1N d4 Rh6 d5 Qc7+ d6 Na6 b8Q Nf6 d8Q Bf5 b7 Bd3 Qe2 Nd5 Qa7 Nc5 b8Q Na4 Bd4 Qc4 d7 Ndb6 Qe8 e6 d8N Bb4 f8N Qa6 Qd6 Bd2 Nc6 Nb3 Nb4 Rf6 Bb2 Nd4 Nc2 Nb5 Bg2 h3 Bc6 Kh4 g5 Rg6 Nf3+ Kg4 Re1 h1N Nh7 h2 Rg1+ Ng3 Qab8 Rh6 g6 h1Q g7 Qg2 g8B Nf1 Nhg5 Rf6 Rh1 Rg6 Rh8 Rh6 Bf7 Ra7 Rg8 Qg1 Bg6 Nc4+ Kf6 e5 Ke6 Ra8 Kd7 e4 Qa7 e3 Qee5 Qg3 Bf5+ Kh5 Qad4 Ra7+ Kd8 Rg6 Bc8 Re6 Qd1 e2 Qde3 e1Q Qde2 Kg4 Bd4 Nba3 Bc3 Ra8 Kc7 Ra7+ Kb8 Nb5 Bd4 Nc5 Qg7 Qa5 Qge5 Qc3 Nba3 Qa5 Rb1 a1Q Rb3 Qac1 Ba1 Qb2 Nb1 Qb6+ B8b7 Ra2 Ra3 Qa6 Bc8 Na4 Nfd4+
N6Q/4Rr2/R3nN2/1n2BB2/5b1r/3r2qB/P1QR2rn/QBnKRkqb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 f4 b5 g4 h5 d6 c5 g6+ Kf6 g7 e5 d7 b3 d5 h4 d6 e4 Bh3 c4 Bd2 b2 Qf3 b4 Qb3 e3 Na3 b1N Kd1 c3 Qc2 b3 Nf3 b2 Nh2 Qc7 d8R Nd7 Nc4 Ra3 Nb6 Nc5 d7 Bd6 Re1 Nh6 g8B Rh7 Na8 Bb7 Be6 Rf7 Rh8 Bg2 d8R Bh1 Bc1 Be5 Rd2 Rb3 Re8 Na3 Re7 Nb5 Rb1 Qd6 Bc8 Ne6 Bd7 Qd3 Bc8 Qf1 Bd7 Qg1 g5+ Kg7 g6 Kf6 g7 Ng4 g8B Bd6 Nf1 Nh2 Ng3 Bc7 Bh7 Bb8 Ra1 b1R Rf1 R1b2 Ne4+ Kg7 f6+ Kh6 f5 Kh5 Re1 Bf4 Rd6 Qg3 Ra6 Ra3 Re2 Rab3 Rd2 Ra3 Bg2 Kg4 Bh3+ Kf3 Rb1 Ra4 Ra1 Rd4 Rb1 Rd3 Bg6 Rg7 f7 Rh7 f8Q Rf7 f6 Qg1+ Bf1 h3 Qg7 Qg3 Bf5 Qg1 Ra1 Qg3 Be2+ Kg2 Bh5+ Kf1 Bhg6 Rb4 Ba3 Rb2 Bd6 Qg1 Be5 e2+ Kc1 Rf8 f7 e1Q+ Qd1 c2 Nf6 Rc8 f8Q Rc7 Bc8 Ra7 Re8 Rf7 Re7 Rg3 Qe8 Rg2 Qgh8 Rb3 Qc6 Ra3 Rb1 Rd3 Qc3 Rgg3 Qa1 Rg2 Kb2 c1N Qc2 Qg3 Bh7 Nf3 Bd7 h2 Bh3 Nec7 Bdf5 Ne6 Qc6 Nbc7 Kc2 Nb5 Kd1 Rd8 Bc2 Ne2 B7f5 Rd3 Rc1 Ng7 Bb1 Ne6 Rc2 Nc1 Bhg4 Rf2 Rc5 Bg2 Bd6 h1R Re5 Rh4 Qc2 Bh1 Bh3+ Rg2 Re4 Nh2 Be5 Rd5 Re2 Rd3 Re1+
N4bRN/R1r3R1/PkB2rRQ/1q2qQ2/1Br3N1/1K5n/1Q1rn1q1/4Nb1q b - - 0 1 illegal: No possible last move, all moves rejected
4rnRb/4Pbq1/3B4/NN3Bn1/Q2n1K1B/rB2n3/2Q1Q1qR/1rQr1kN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 h5 b4 Ne7 g4 a5 d4 Kd7 e4 Kd6 b6 c5 g6 h4 b5 h3 g7 c4 g8Q h2 g5 a4 g6 a3 b7 a2 b6 c3 g7 c2 Bd3 Nbc6 b8N Qd7 b7 Ng6 Qh7 Ra7 g8B Bg7 Bd2 c1R Nc3 Qe7 Qh6 Be6 Be1 Be5 Rb1 a1R Bh4 R7a3 Qa4 Rd1 Rb6 Rab1 Bc2 Bg7 e5+ Kc7 Bf7 Re8 Bg8 Bh8 d6+ Kd8 d5 Nf8 d7 Kc7 Rb4 Qg5 Bh7 Bf7 e6 Kd6 d8Q+ Ke5 d6 Qg8 d7 Qg4+ Kf2 f3 Ke3 f2 e7 f1Q Qc8 Qfg2 d8Q Qg8 Qd2 f4+ Kd3 f3 Ke3 f2 Bhf5 Qh7 Rg4 Nd4 Rg8 Qhg7 Bb3 f1N+ Kd3 Qh7 Nb5 Qhg7 Qhc6 Ne3 Qc1 Kf4 Nc6 Qh3 Na5 Qhg2 Nh3+ Kf3 b8B Ndc2 Bd6 Nd4 Rg1 h1N Q8c2 Ng3 Rh1 Ne4 Rh2 Q7g6 Nf4 Q6g3 Ne2 Kf2 Ng1+ Kf1 Rg5 Re1 Rg8 Qg7 Qdd1 Ng5 Qg4 Ngf3 Ke4 Ng5+ Kf4 Rd1 Qge2+
1R1r1bQ1/1KB5/B2r1N2/Qbbn1n2/1BB1Qq2/qQ6/q1nPR1p1/1NR3k1 b - - 0 1 illegal: No possible last move
1Rr2Q1q/1B2r3/3Qb3/BqN1brBQ/N3B3/n3NN2/1knP1qp1/R1nK4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Kd7 e4 Kd6 h4 a5 h6 c5 h7 g5 b6 f5 b5 g4 h5 f3 b7 f4 h6 c4 e5+ Kc5 d6 Kb4 e6 a4 b6 f2+ Ke2 c3 d7 c2 e7 Kb3 e8B a3 Bb2 a2 Bg2 f1R Bc3 g3 Ba5 Ne7 Bg6 Nbc6 b8N Ra7 b7 Bg7 Nf3 Qb6 d8B Be5 Nc3 Nf5 Nd7 Nb4 b8Q Kb2 Qd6 Ne3 Bg5 Nc4 Be4 Na3 Nc5 Re7 Bb7 Rd8 h8Q Be6 h7 Rc8 Qf8 Qc6 h8N Qb5+ Qd3 Rf2+ Ke1 c1N Ng6 Rd7 Rh8 Re7 Q1e2 Nbc2+ Kd1 Rf1+ Ne1 f3 Qd6 f2 Bge4 g2 Qh5 Rg1 Nf4 f1Q Nfd5 Qf2 Ne3 Rh1 Qhf7 Rh7 Q7e8 Rhf7 Nf3 Rf5 Qh5 Nb3 Rc1 a1Q Rg8 Qa2 Ra1 Nc1 Qg7 Qab3 Rd8 Q3b4 Qf8 Qd4 Re8 Bg3 Rd8 Qh8 Re8 Be5 Rd8 Rc6 Rb8 Rc8 N3a4+
4K1bB/6k1/RNr1n1nN/1q6/B5rq/NPrQqQp1/3RBQ2/1Q3Bbb b - - 0 1 illegal: No possible last move, all moves rejected
2Q1Nk2/1r3q2/Q2nRN2/1BBbN3/2P2r1q/p1Qnn3/RbRr4/3Rb1KQ b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 g5 Kf2 e5 h6 g4 h5 d3 b6 d2 f6 e4 f7+ Ke7 f5 a4 b7 d4 b5 d3 f6+ Ke6 b6 a3 h7 Qd5 h6 Ra6 Qe2 d1Q Nd2 Qb3 Ra2 Bg7 f8R Nc6 b8Q Nb4 f7 Ke7 b7 Bb2 Ngf3 g3+ Kg1 g2 Ne5 e3 Ne4 d2 Nd6 Rb6 Ne8 Nf6 Qa6 Be6 Qc8 e2 b8R e1B Bb5 Bd5 c4 Ne4 Rg8 Qdf3 f8N d1N Rg6 Rb7 Nfd7 Qf7 Be3 Nd6 Ndf6 Nd3 Bc5 Rf8 h8Q Ne3 h7 Qc3 Qg7 Qd4 h8Q Qh4 Qgh7 Rg8 Rh6 Rg4 Qe4 Rf4 Qd4 Ra7 Qc3 Rc7 Rb6 Rb7 Qh7 Kf8 Rh5 Rg4 Rf5 Re4 Rf2 Rf4 Rc2 Qg4 Kh2 g1R Qe4 Rg3 Rf1 Qg5 Qh1 Rgf3 Rc6 Qh4+ Kg1 Rf2 Rb6 Rd2 Rc6 Bg3 Rd1 Be1 Bb6 Ne4 Re6 Nd6 Bc5
b3q2N/2rbb1QB/2R2nR1/Q2Q2Q1/1P5N/q1N2r1n/2k1rBpK/Rq3N2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 Kd6 h4 Ke5 b4 Kd4 e4 f5 d6 a5 h6 g5 h5 c5 e5 g4 d7 g3 b6 c4 b7 a4 h7 c3 e6 a3 h6 a2 e7 c2 e8Q Ra7 Qg6 Na6 b8R Nc5 Ne2+ Kd3 Qg7 Qe8 d8Q+ Bd7 Rg1 Ne4 Qa5 Rc7 Nbc3 Nf2 Rb6 Nh3 Rc6 Nf6 Bb2 Rg8 h8N c1Q h7 Qb1 Ng6 Be7 h8N f3+ Kh1 f2 Nh4 f4 Qb3 f3 Qbd5+ Kc2 d4 Bd8 Bc1 Be7 Be3 Rf8 Qdg5 Rg8 d5 Rf8 Bg2 f1R d6 f2 Bd5 Re1 Bg8 f1B Bf2 Ne4 Bh7 Rf3 Nc1 Ba6 Nb3 Re2 Nd2 Bb7 Nf1 Ba8 Qad5 Bf5 d7 Nf6 d8Q g2+ Kh2 Qb3 Rd1 a1Q Rh1 Qaa2 Ra1 Qab1 Raa6 Qa3 Rg1 Rb7 Q8a5 Rc7 Rh1 Nh5 Rg6 Nf6 Rc6 Bd7 Ng3 Qbb3 Ra1 Qb1 Nf1
1R2Q1q1/Q1b2B1b/2rn1b1K/1q2RB1N/P1B4N/Bp1R2nR/1r3k1q/2Qn4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Kg4 h5+ Kh4 c5 g4 b5 a4 b3 f4 b2 d4 b4 d6 b3 f6 Ke6 f7 Kd5 f5 Ke4 d5 c4 d7 c3 d6 c2 f6 Bg7 f8Q Nh6 f7 Bf6 Nh3 Ra6 Qe7 Rc6 f8Q Nf7 Bc4 Na6 Qfe8 Nc5 Nd2+ Ke3 Nf4 b1N Nf3+ Kf2 Rh3 e4 Ba3 e3 Qc1 e2 Bd3 e1B Bf5 Qb6 d8R Qb5 Qa7 Ba5 d7 Bc7 Ra2 Ba6 Rb8 Nd6 d8R Nc3 Rd7 Rf8 Re7 Nd1 Re5 Bc8 Rb2 Be6 Ra2 Bg8 Rb2 Bh8 g6 Bf6+ g5 Bh7 g7 Rf7 g8B Rf8 Qb7 Nce4 Bc4 Ng3 Bf7 Bh8 g6 Bf6+ Ng5 Rh8 g7 Rf8 Bc4 Rf7 g8B Re7 Rc5 Re2 Qa7 Rd2 Bgf7 Re2 Qa1 c1Q Rd2 Qc3 Rd3 Rb2 Re5+ Qd4 Rde3 Qdd5 Qc1 Qe6 B7g6 Qg8 Bgf7 Bh8 Nf3 Bg7 Kg5 h4 Rh1 h3 Nh4 h2 Nh5 Bh8+ Kh6 Bf6 Rhe1 h1Q Rd3+ Qb6 R1e4 Qh2 Ree3 Qb5 Rb6 Nf1 Rh3 Ng3 Rb8+
5B1Q/6Rb/nQ2qN2/2r1P1BR/2n5/R1p1nR1b/1rr1qBBK/Q1bN1k2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 Kd6 h4 Ke5 b4 Kd4 e4 f5 d6 a5 h6 g5 h5 c5 e5 g4 h7 c4 d7 g3 h6 c3 b6 a4 b7 a3 b5 a2 b6 Qh4 d8B Na6 b8R Qf6 b7 Ba3 Rh3 Qe6 Be7 Nf6 Bf8 Ng4 d3 Bd7 Nd2 Ke3 d4 f3+ Kh1 Kf2 d5 f4 d6 Be8 d7 Ne3 d8Q g2+ Kh2 Bg6 Qb6 Bb2 Rc8 Rb8 Rc7 Rg8 h8Q Bh7 Qa4 Ke1 Bb5 f2 Ne4 f1B Rg7 f3 Nf6 f2 Bc6 Nc4 Bg5+ Bc1 Rf3 Rc8 Be4 Rc5 Nh3 g1R b8B Bg2 Bb7 f1Q Ba7 Qe2 Nf2 Rf1 Nd1 Rf2 Ba8 Kf1 Bd5 Bf5 h7 Bg6 Rb1 a1N Rb3 Nc2 Qa1 N2e3 Ra3 Bh3+ Kg3 Ng4 Qc7 Qe8 Bh4 Qd3 Rf7 Nb6 Qg7 Qd8 h8R Qd7 Rh5 Nc4 Qh8 Rb5 Re3 Rfb2 Bh1 Bh7 Qb7 Rg5 Rg7 Qe6 Bac5 Rf5 Qb6 Rff2 Bg5 Rfc2 Bd4 Rc5 Rf3+ Ke1 Bg1 Nge3 Bf2+ Kf1 Kh2 Qe2 Bg2+
4Qb2/n2b1nq1/3BB3/1k2pBrQ/1n1R1rP1/QK3R1q/NB1R1Qr1/4qN2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 Kd2 h5 Kc3 c5 b4 e5 f4 a5 b6 h4 g6 c4 f5 a4 f6 e3 b7 e2 d6 Kc6 g7 e1Q+ Nd2 h3 b5+ Kb6 f7 h2 d7 a3 d5 a2 d6 Rh4 Bd3 Qg3 Ne2 Rh7 Nf1 Rh3 Bb2 Qf6 d8R Nc6 b8Q+ Kc5 b6 Bb7 d7 Nh6 g8B Ra4 Qd6+ Kb5 Nc1 Rh5 Qa3 Bc8 b7 Rg5 b8B Na7 Qh5 Qh3 g4 Qg7 Bd6 Rb4 Rg1 h1R Rg3 Rh2 Rf3 Rg2 Bf5 Ra4 Rb1 a1N Na2 Nc2 Rd1 Nb4 Rd2 Ra6 Re8 Ra4 d8Q Bd7 Qe7 Nbc6 Kc2 c3 Rd8 Nb4+ Kb3 c2 Qe8 c1Q Rd4 Qe1 Rd2 Be7 f8Q Nf7 Rd4 Nh6 Qf6 Bf8 Bge6 Nf7 Rd2 Rg6 Qfh4 Rg5 Rd4 Nc2 Rd2 Rf4 Qf2 Nb4 Bc5 Bc6 R8d4 Bd7 Bd6
1Q1q4/BQr4B/B7/1P3nN1/bbr2n1p/n2NB1Qq/bN1R1Rr1/K1k3N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 Kb2 e4 b6 a4 f6 h3 g5 h2 f5 e3 b7 c4 g6 h4 f7 e2 f6 e1Q g7 Na6 b8Q+ Nc7 Ra2 c3+ Ka1 c2 Nd2 a3 Nc4+ Kd7 d6 Ke6 d7 Kd5 Nb2 Ke4 d5 Qf2 d6 Qg3 Qb7+ Nd5 Be3 Ra7 Ba6 Ne7 g8B Nf5 Qe1 Qh3 Bh7 Rg8 Qg3 Be7 f8Q Rg7 Qc6 Rc7 f7 Rg4 Qb5 Nf4 Qe8 Bb7 f8N Bc6 Ne6 Bf8 Qb8 Ba4 b5 Rg7 Qe7 Rg8 Nd1 Kd3 Ng5 Rg7 Ba7+ Kd2 Nb2 Kc1 Qe4 Re7 Qeb7 Re2 Bc5 Rg2 Ba7 Qe8 d8B Be7 d7 Bb4 Bf6 Qd8 Bfd4 Rc4 N5f3 Rc7 Ne1 Rc4 Ngf3 Rc7 Rf1 h1B Rf2 Rc4 Nd1 Rc7 Rb2 a2 Rd2 Rh2 Ng1 Bd5 Bdb6 Rg2 Be3 Qc8 d8N Qd7 Nf7 Qd8 Ng5 Bc4 Bf2 Bf7 Rd3 Be6 Rdb3 Kd2 Rf3 Beb3 Nd3 Bg8 Rb1 c1R Kb2 a1N Bfb6 Nc2 Rf2+ Ne2 Bc5 Na3 Ka1 Ba2 N1b2 Rc4 Rd1+ Kc2 Rf3 Nf4 Be3 Qg4 Nc5 Qh3 Rd2+ Kc1 Rf1+ Bd1 Rff2 Ba4 Ncd3+
3B1rQK/n1B2N2/1B1qQ1BP/4rn1b/kp6/3q2rN/3nNRN1/2R1q1bQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 c5 Ke4 g5 Ke5 b5 d4 b3 f4 g4 h4 b2 a4 g3 a5 c4 h6 e6 d6 Kc6 d5+ Kc5 f6 Kb4 f5 g2 h7 c3 d7 c2 h5 Nh6 f7 Qg5 d8B Bc5 f8N Bb6 d6 Qd2 Kf6 e5 Kg7 e4 d7 e3 f6 e2 a6 e1Q f7 Ba5 a7 Qd5 Bf4 c1Q Qe2 Bc7 Ra2 Qc2 Ne6 Rf8 h8N Qcf5 Nh3 g1N Nc3 Bb6 Bfc7 b1R Nef4 Nf3 Qe6 Nd2 Ng2 Qfd3 Ne2 Rb3 Rb2 Re8 f8Q+ Qd6 Nf7 Bg1 Kh8 Nf5 h6 Ka4 Qg8 b4 Bb6 Ba6 Bdc7 Nc6 d8B Rc8 a8Q Na7 Qf3 Bb7 Qh5 Bf3 Rc2 Rb8 Rc1 Ra8 Rh2 Bg4 Qh4 Bh5 Ng3 Rf8 Be2 Nb5 Ngf4 Qc4 Rf2 Ne3 Qg5 Ra5 Qgd5 Na7 Qh1 Re5 Bd3 Rc3 Bg6 Nf5 Nge2 Rg3 Ng2 Qe4 Rb1 Qed3 Rc1
2NBb2Q/1r1bB1K1/q1BB1nP1/3q4/1pNq2R1/Q1r3b1/1Nn1Q1Nk/1r4R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 h4 g6+ Kf6 g5+ Ke7 g7 Kd6 f6 b2 g6 c4 a5 h3 a6 c3 f7 c2 a7 h2 f5 Qh4+ Bf4 c1R f6 Ne7 g8N Bg7 f8Q Bb7 f7 Ba6 Nc3 Rb1 Nh3 Nd7 Qe2 Rc8 a8N Rh7 Rg1 h1Q+ Bg2 b4 Nd1 Rc5 Nb6 Rc3 Qa8 Nc6 Kf5 Bb5 Ne7 Nf6 f8Q Bh6 Bg3 Bf4 Qh8 e4 Qa3 e3 Be4 Be5 Nf4 Rg7 Ng2 Rf7 Ng8 Rb7 Ne7 Ba4 Bh2 Bg3 Bf3 Qe4+ Kg5 Qd3 Kh6 Qa6 Kg7 Bb5 Qc2 e2 Nc4+ Kc7 Ra2 e1Q Qe2 Qf2 d6+ Kd7 d5 Nd4 Nc8 Nc2 Ra1 Qd4 Be4 Rc1 Bf3 b1B Ndb2 Ba2 Be4 Rf1 Rd1 Ba4 Rd3 Rb1 Rf3 B2b3 Rf4 Bb5 Rg4 B3a4 Na5 Bd3 Bf3 Bf5 Nac4 Be6 Be4 Bf7 Bf3 Be8 Be4 Kd8+ d7 Kc7 d8B+ Kd7 d6 Ke6+ Kf8 Bad7 Bc6+ Kf5 Kg7 Bf2 Nf4 Qhd5 Ng2 Bg3 Be7 Bf2 Bf4 Bg3 Qd2 Ke4 Qe1+ Kf3 Qe5 Be6 d7 Bf5 d8B Bfd7 Qe1 Bh4 Be5 Bf2 Rf4+ Kg3 Qe2 Be1 B5d6 Bf2 Qf8 Kh2 Rg4+ Bg3 Qh8+
2b1KRqN/2B1N3/4QP2/rN2B2Q/Q3b2q/p2n1r2/1rB1n3/R1kq1BbQ b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 a3 d7 c3 Ke6 c2 Kf7 Kb3 g7 e5 b6 h4 f5 h3 b7 e4 d6 e3 Nc3 e2 Nd5 e1Q Qh5 Qd1 Ne7 Qe2 Nf3 Ra5 Bf4 c1R Nd4+ Kc4 b4 Kd3 b5 Na6 b8B Qc7 d8Q Rh7 b6 Qb7 d7 Rh8 Bbe5 Nh6+ Ke8 Qg2 g8B Rc3 f7 Nb4 f6 Nf5 b7 Ng3 Nb5 Kc2 b8Q Qd1 Qa7 Ne2 Qdb6 Rf3 d8Q Nd3 Bh7 Qg8 Qe6 Bh6+ f8N Bg5 Bg3 Be3 Bc7 Bg1 Bge5 Kd2 Qdd5 Kc2 Ra2+ Kc1 Bf5 Rh6 Qad4 Rg6 Qa4 Rg4 Bg6 Rb4 Rd2 Rb2 Qde4 Nb4 Rd8 Nd3 Qa8 Bf2 Rg1 h1Q Bh7 h2 Qad5 Qg5 Nfg6 Qhg2 Nh8 h1B Be4 Qh4 Qa8 Ndf4 Bc2 Nd3 Kf7 Qgg4 Rf8 Qg8+ Ke8 Bc5 Bh3 Ba7 Re1 Bg1 Bf1 Rf4 Qg2 Rf5 Qh3 Be4 Qh1 Rf3 Qhh3 Kd2 Qh2 Qc1 Qh1 Qb1 Bb3 Qc2 Ra1 Qd1 Ra2 Kc1 Bc2 Rb3 Ra1+ Rb1 Ra2 Rb2 Ra1+
qN3b1K/nnRBn1r1/Q4PqR/rpBbR3/2kq1BQ1/4B1Q1/1N5r/3R4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 b5 Kf4 c5 Kg5 e5+ f6 e4 f4 c4 h4 c3 a4 b3 d4 c2 d6 Ke6 Kg6 Kd5 d7 e3 h6 e2 f5 e1Q h7 b2 a5 Qde8+ f7 Qd2 d8Q+ Qd7 a6 Nh6 a7 Bb4 f8B Qe2 h5 Be7 f6 Kc4 d5 Nf5 d6 Rg8 h8R Kb3 Kh7 g5 h6 g4 Rh5 g3 Be3 g2 Nc3 b1N Nf3 g1Q Nd4+ Kb4 Qc7 c1R Bh3 Rg6 Nc6+ Kc4 Na4 Nh4 Re5 Qeg2 Qg4+ Qe4 Rg8 Nf5 Kh8 Rg7 h7 Bb7 Bf4 Qe8 d7 Nc3 d8B Rc2 Rd1 Qg6 Be3 Bb4 Bfc5 Nd6 Be7 Rd2 Rc8 Nd5 Bf4 Qgh1 Bce3 Rh2 Bf8 Qd4 Be7 Na6 Nb8+ Nc5 Bf8 Ne7 Nb2+ Kc3 Bc1 Bd5 Bce3 Nc4 Qd6 Nb6 Rc7 Nbc8 Qa6 Kb3 Qg3 Nb7 Bd7 Nf5 Bc5 Ba3 Bb6 Bf8 Bc5 Nfe7 Qe6 Qf3 Qeg4 Qg2 Na6 Rb8 a8Q Na7 Bc6 Rd8 Nb8 Rd6 Bd7 Ra6 Qg5 Ra5 Q5g4 Nd6 Qc6 Nb7 Qa6 Qe8 Nc6 Qa8 Nb8 Kc3 Rc8 Qc2 Rc7 Qg6 Qf2 Qge4 Qfg1 Nec6 Q1g3 Rf7 Kg8 Kb3 Nd3 Kc4 h8R Qf5 Rh4 Qg6+ Kh8 Ne7 Rh6 Rg7 Nb2+
2rBKR2/3N4/q2pNR2/Q1rnn2Q/N1b2N2/3Q1q1P/k4bB1/qQB1n2r b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kd3 g5 Kc4 a5 Kd5 e5 c4 e4 f4 d3 b4 d6 b6 d2 b7 e3 h6 g4 h7 e2 b5 e1Q h3 a4 b6 g3 c5 a3 f6 g2 f5 a2 c6 Be7 c7 Ra3 Ne2 g1Q Nbc3 Nd7 Kc6 Qeg3 b8B Nh6 b7 Ng8 Na4 Rd3 Bg2 Rd5 Nf4 Qf3 Qb3 d1R Qd3 Qa7 Rf1 Qe8 Rb1 a1N Rb2 Qg1 Rbf2 Nc2 Ba7 Qh1 b8Q Ne1 Bb6 Ba6 c8Q Bc4 Qcc7 Qc8 Ba5 Qg1 Qbb1 Qa6+ Qcb6 Ne5+ Kc7 Ng6 Kd7 Rc5 Q6b4 Qh1 Bd8 Qg1 Qa5 Qh1 Bc7 Bd8 Bb6 N8e7 Bc7 Re8 h8Q Nd5 Qh5 Be7 Bb6 Rec8 Bd8 Qg1 Rb2 Qd4 Rb8 Qa1 Ra8 Nc2 Rf2 Rh1 Rb8 Ne1 Rf1 Kg8 Ke8 Ne5 f7+ Kg7 f8N Bh4 f6+ Kg8 N4g6 Bf2 f7+ Kg7 Ne7 Kf6 Nd7+ Ke6 Ng6 Ne7 Qe3 Kd5 f8N Qc3 Qe2 Qa1 Nf4+ Kd4 Qec2 Nd5 Qch7 Bd3 N8e6+ Kc4 Ra8 Be2 Qbe4+ Kb3 Qb1+ Qb2 Qhe4 Bc4 Qed3+ Nc3 Ra7 Bg3 Ndf8 Qf2 Nd5 Qf4 Rf3 Bf2 Rf7 Qg4 R3f4 Qf3 Nd7 Ka3 R4f6 Kb3 Qbc2+ Ka2 Ndf4 Nd5 Rf8 Rb8 Qcc3 Qa1 Qcb4 Rbc8 Qbb1+
bQnKn2q/1RN5/2P1r1B1/3Rb1R1/3n3r/4qN1q/N2p1R2/b2kBQBN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 b4 d6 h4 g4 c4 a4 c5 a3 b6 e4 h6 e3 h5 e2 c6 e1Q h7 g3 b5 g2 h6 d3 b7 d2 b6 a2 Nh3 g1B Nf2 Bd7 Nc3 Qe3 Bd3 Ra7 Qf1 d1N Bd2 Qe1 Rh5 Qc8 Rg5 Bh2 Nh1 Na6 b8R Bg7 b7 Qe3 Be1 Ra8 Rb1 a1Q Rb5 Qb2 Na2 Nc7+ Kc4 Ne7 Rd5 Re8 h8N Nc3 h7 Ne2 Nf7 Nd4 h8B Ra3 Ne5 Ra4+ Bb4 Qg2 Nf3 Qh3 Be4 Qd8 Bc2 Bc8 Bd3 Kf7 f6 Ke6 f7 Kf6 f5 Be5 Rb5 d5+ Kc5 Qf2 Kb6 Qe3 Be1 Rb4 Ra8 Ra4 b8R Bb7 f8N Qc8 Ra7 Ba8 Rbb7 Qd8 Ne6 Nc8+ Kc5 Re7 Be4 Ne8 Nc7 Re6 Bb1 Kf7 f6 Rb4 Raa5 Ra4 Rf5 Kg6 f7 Rb4 Rf6+ Kh5 Bg6+ Kg4 Rf5 Qdh4 f8Q Bgf6 Bg7 Qh7 Bh6 Qh8 Bf4 Bg7 Bh2 Ra4 Bg1 Bgf6 Rh5 Kf4 Rf5+ Ke4 Qg2 Kd3 Qf1+ Kc2 Rb2+ Kd1 Rf2 Ne2+ Kb5 d4 Rg5 d3 Ka6 Rf4 Rd5 d2 Qd6 Rh4 Qd8 Ncd6 Qb8 Ba1 Ka5 Nd4 Kb6 Be5 Nb5 Nf6 Kc7 Nfe8+ Kd8 Nc8 Nc7
1q3N1q/n4rbN/1P3R1Q/1N1KR1Q1/3nr2b/1k1b3p/1B1qB1r1/B1B1RN2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 b6 h3 d7 h4 g6 c4 f6 h2 g7 a4 b7 h3 f5 c3 d5 a3 d6 a2 f7 c2 f6 Kb3 Na3 Rh5 Nf3 Ka4 b4 Be7 f8R Rg5 f7 Rf5 b5 Kb3 b6 Bh4 Kd5 Nc6 b8B Na7 Nb5 Nh6 g8N Ba6 Nf6 Qc8 Rg1 h1Q d8B Qh2 d7 e4+ Be5 e3 Qd2 e2 Nh7 e1R Bf6 Re4 d8Q Rff4 Qe7 Nf5 Beb2 Nd4 Rg5 Qg3 Rb1 a1B Be2 Qb8 Rf5 Qg8 Nh2 Qh8 Re5 Rg4 Qh6 Rg2 Nc7 Bd3 Nf1 Rg1 Nb5 Rg2 Bf4 c1Q Qd8 Qc3 Re1 Qb4 Bfc1 Qd2 Qe7 Nc8 Bg7 Ra7 Qeg5 Rb7 Rg8 Rc7 f8N Rf7 Bf6 Na7 Rg6 Ka2 Bg7 Kb3 Rf6 Re7 Rfe6 Rh2 Bc3 Nf3 Rf5 Rf7 Bgf6 Bb2 Rd6 Rg2 Bfe5 Ba3 Ba1 Bb4 Beb2 Bc3 Re6 Bg7 Rfe5 Nd4 Rf6
5rb1/1nK2n2/NPR3n1/5N2/B5p1/B1rq1NQ1/B1r1QQN1/b1kbR1qB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 g5 Kc5 f5 d4 f4 e4 g3 h4 a4 b4 f3 e6 Kf6+ e7 a3 d6 f2 e8B g4 b6 g2 b5 a2 e5+ Kf5 d5 Ke4 e6 c6 h5 Ne7 b7 Bg7 h6 Bf6 h7 Nf5 e7 Bh4 b6 Rg8 h8N Bg5 d7 Bh4 d6 Rf8 Ne2 g1Q Nf7 Nh6 Nd2+ Kd3 Ba3 Bf6 Rc1 a1N Bg2 Bb2 Qe1 f1B+ Qf2 Ra6 Re1 Kc2 Nf4 Be2 Nf3 Ra4 Rh4 Re4 Rh5 Re3 Bh1 Rb3 Ng2 Rc3+ Kb4 Nb3 Rc5 Ba1 Ka4 Ng8 Nh6 Na5 Nf5 Nh6 Bh5 Nf7 e8B Qf6 d8Q Nd7 b8Q Nb7 Qe7 Nde5 d7 Qd6 d8N Ng6 Ne6 Qd3 Nc7 Be6 Na6 Ba2 Rc4 c5 Kb5 Bb3 Kc6 Ba2 Ra4 c4 Qbg3 Bb3 Kc7 Ba2 Qfe3 Bd1 Qef2+ Kb1 Qe4 Rc2 Qe6 c3 Rc4 Bb3 Ba4 Ba2 Bb4 Kc1 Rc6 Nh6 Bd6 Ne5 Re2 Kb1 Qe7 Bg8 Bb5 Ra2 Nc5 c2 Bf7 c1R Re1 Rc3 Na6 Kc1 Ba4 Rac2 Ba2 Ng6 Qee2 Nf7 Ba3+
N1K3NB/7b/rP2R3/QRn1Q1B1/pQq5/b1R5/nBq1B1r1/Qkr3nb b - - 0 1 illegal: No possible last move
1n1BbR1q/3RN3/qP1rbp2/Q1bn2R1/2r3Q1/4qBK1/1R1B3r/N1kB2Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 h4 Kd6 e4 Ke5 b4 Kd4 h6 c5 e5 g5 e6 a5 h5 f3 d6 g4 b6 a4 b7 a3 d7 a2 e7 c4 e8B c3 h7 c2 b5 f6 h6 Bg7 Nh3 Qc7 d8Q+ Nd7 b8R Ra6 Rg1 Ra8 Nf4 Qe5 Kg3 f2 Qa5 Nb6 Na3 Nd5 Bg2 f1B Bf3 Ra6 Bh5 Qe8 Ng6 Kd3 Ne7 Rd6 b6 Bg2 Rb7 Bf8 Rb1 a1Q Rb2 Be6 Rd7 Qa2 Qe1 Qc4 Qf2 Qa6 Bd1 Be4 Rg2 Qea8 Qg1 Bg6 Bf3 Be8 Bd1 Ke4 d4 Kd3 Bd2 c1R Nc2 Qd8 Na1 Rc4 Rf2 Qda8 Rf5 Qb8 Rg5 Qd8 Kh4 g3 Bhf3 g2 Kg3 Qda8 Qh2 g1Q+ Qg2 Qe3 Qg1 Nb4 d5 Nc6 Bc1 Nb8 Bd2 Rdc6 d6 Qe4 Ra7 Qe3 d7 Rd6 d8B Ra4 Ng6 Ne7 Rd7 Nd5 Ne7 Re4 Be1 Rc4 Bd2 Rg8 h8Q Rg6 h7 Rh6 Bc1 Rhh4 Qg8 Rh2 Rb4 Kc3 h8R Kd3 Qg6+ Kc3 Qh5 Kd3 Qg4 Kc3 Ba3 Kd2 Rb2+ Kc1 Bb4 Rdc6 Nc8 Bc5 Rf8 Rd6 Ne7 Nc6 Rh8 Bg6 Bc7 Qe8 Bc3 Nb8 Bd8 Qf8 Bb4 Be8 Rhg8 Qg7 Rf8 Qh8 Bd2+
6R1/B1q2k1p/NbQR1P1Q/R1Rbqn2/1r6/n1N4B/r2bnrN1/2NK2Q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 c5 g4 a5 d4 e5 f4 c4 g5 e4 g6 h3 f6 a4 f5 a3 f7+ Ke7 d6+ Kf6 b6 a2 g7 e3 d5 c3 b5 h2 b7 e2 b6 c2 d7 Ra5 d6 Re5 Bh3 Ra5 Nc3 Qe7 d8N Na6 b8N Qc7 b7 Ra4 d7 Nb4 Ne6 Ne7 Be3 c1N g8R Nc2+ Kd2 Na3 d8R Re4 Na6 Rb4 b8Q Bb7 Ba7 Bd5 Qc8 Bh6+ Ke1 Be3 Nf4 Bb6 Ng2 Qe5 Kd2 Qc7 Qf1 e1B+ Kd1 Bd2 Nge2 Qe5 Rg1 h1Q Rg5 Qhh2 Rd6+ Be6 Qc6 Rf8 Rg8 Qhf4 Rh1 Qc4 Qg1 Qcc5 Nd4 Ne2 Nb3 Qa5 Rc1 a1R Rh2 Ra2 Ra1 Bd4 Nc1 Qc7 Rh1 Bb6 Rh2 Ng6 Rh1 Nh4 Rh2 Re8 Rh1 Re7 f8Q+ Rf7 Qh6+ Ke7 Rh2 Bd5 Rh1 Rf8 Rh2 Kf7 f6 Rd8 Bg4 Nf5 Rh5 Rb8 Bh3 Rb7 Rb1 Rf4 Rb5 Rf2 Rhg5 Ba5 Rc5 Rb4 Rb8 Bb6 Rgg8 Ba5 Rbb5 Bb6 Ra5
1QBN2R1/RB1Kb1Pp/7Q/3brR2/n1n3Br/1qq2q2/6R1/kbBQ1N1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 f5 g4 a5 b6 a4 b7 f3 g6 f4 g7 f2 g5 f3 d6 c4 d7 a3 Ke6 c3 e5 c2 d5 Kb3 d6 a2 g6 Qc7 Bh3 f1N Ne2 f2 Rg1 Na6 b8R+ Qb7 Nf4 Ne7 g8B Qb5 g7 Ne3 Bg4 f1B Rg2 Qb7 Nd2+ Ka4 b4 N7f5 b5 Bd3 b6 Ng3 Nf1 Qf3 b7 Kb3 Bf7 Kc3 Bg6 Nh1 B6f5 Ra7 Ra8 Be7 b8Q Bb7 d8Q Nc4 d7 Bc6 Qdb6 Re8 d8R Rd7 Be4 Rd4 Ra7 Bd5+ Kd7 Nc5+ Kc7 Bf8 e6 Na4 Kd7 Be7 Rb1 a1Q Rb5 Qb2 Rc8 Bd8 e7 Qb3 Bef5 Re4 Qh6 Re5 Be4 Rh5 Ne6 Rh4 Bg5 Kb2 Bc1+ Ka1 Rbc5 Rg8 e8B Be7 Nd8 Rf8 B8g6 Rf5 Rca5 Re5 B6f5 Bf7 Bb7 Bd5 Nf7 B3e4 Rg8 Bd3 Nd8 B3e4 Be3+ c1Q Rc5 Bb1 Be6 Qcc3 Bc1 Re3 Rca5 Bde4 Rf5 Bd5 Ke8 Re4 Bec8 Re5 Kd7
bNQr3B/R2b1p2/n2B3k/QRr4R/5nq1/1N1Q2Nq/1K2QP1b/rR3q2 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Nc3 Kf5 Nb1 Ke6 Kd2 Kf5 Kc2 a5 e4+ Kf6 b4 g5 h4 Kg7 e5 c5 b6 d4 h6+ Kh7 b5 a4 e6 a3 e7 c4 e8Q g4 b7 a2 h5 g3 b6 g2 Kb2 d3 Nd2 Ra5 Ne2 g1Q Ng3 Nf6 Qee2 Rc5 Nb3 Nd5 Bf4 Na6 b8N d2 b7 Qh4 d8Q Bd7 Qc8 Qh3 Qde1 d1B Qa5 Qgg2 Re1 Bc2 Reb1 Be4 Be5 Qf3 Bf4 Qfg4 Be5 Bdf5 d7 Nf4 d8Q Bd6 Qdd7 Bc7 Qdd3 Rd8 Bd6 c3+ Kc2 Kg8 h7+ Kg7 h8R Bd7 h6+ Kg6 h7 Kh6 Kc1 c2 Kb2 c1R Nc6 Bg2 b8R Bh1 Rb5 Rf1 Nb8 Ba8 Rc1 Re1 Rab1 Rd1 Rc4 a1Q+ Kc2 Rd5 Rb2 Rf5 Rcc5 Bb6 Rc7 Nh5 Be5 Kg5 Ra7 Bc7 Ne4+ Kg6 Bf4 Rh1 Bh2 Qag1 Bf4 Q1g2 Kc3 Ra1 Rb1 Rc5+ Kb2 Qf1 Bh2 Bf4 Bg3 Bd2 Be5 Bf4 Bd6 Bh2 Ng3+ Kg7 Rg8+ Kh6 h8B Nf4 Rg5 Nh5 Rd5 Nf4 Rh5+
4rR1K/1nQ1P1N1/b1Br4/1R3Q2/n1q3q1/rnk1Qq2/1b1p1BBR/N2RB3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 Kc4 h4 g5 e4+ d3 b4 d5+ e6 a5 e5 a4 h6 f6 Kg6 f5 e7 f4 e8B d4 h7 f3 e6 g4 h5 f2 b6 g3 h6 g2 b7 a3 b5 a2 e7 Kb4 c4 d2 b6 d3 c5 Qd4 c6 Ra4 c7 Qf4 Ne2 g1R+ Ng3 Qe5 Qf3 d1Q Rh2 Kb3 Bc6 Qd2 Na3 Qef4 Bg2 f1Q Nh5 Nd7 b8R Qc2 b7 Kc3 Qe3 Nb6 Ng7 Nf6 Rb1 Qcd1 Nc2 Ne8 Na1 Nd6 Rb5 Rg8 h8B Qfg4+ Kh7 Qdf3 Ra8 Ra5 b8Q Ba6 c8Q Na4 Qf5 Nb7 Qc7 Q1e2 Re8 Rd1 Rd8 Qc4 Rd6 Qfg4 Ba3 Qef3 Bc5 Rd2 Qef4 Rd1 Bf2 Rd2 Qe3 Rd1 Nh5+ Bg7 Rd4 Be5 Bf6 Re8 B6h4 Rd2 Ng7 Rd1 Be1+ Rd2 Bhf2 Bf6 Nc2 a1N Rd8 Nb3 Na1 Nb6 Rd6 Ra3 Rd8 Na4 Rdd5 Rb8 Rd8 Rc8 Kh8 Ra8 Rf8 Re8 h7 N7a5 Rh1 Nb7 Rf1 Qce4 Kg8 Kc4 h8R Bb2 Rh2 Kc3 Kh8 Qe6 Bg1 Qf7 Bh4 Qfc4 Rd1 Re2 Qa7 d2 Be1 Re6 Bgf2 Rd6 Qe3+
6Nn/qBQ1P3/Rb1Q3r/Q2qn3/R1B1b1kp/2rbr1N1/5B2/NBN2nK1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 c5 e4 h5 d4 f5 b4 a5 e5 f3 e6 c4 d6+ Ke8 d7+ Ke7 d5 a4 g6 Kf6 d6 h4 b6 a3 g7 f4 b5 Kg5 b7 a2 e7 c3 b6 c2 Bg2 Rh5 Nc3 Nh6 g8B Nc6 b8Q Ra5 b7 Ra4 Bh7 Na7 Qc7 Rb4 b8N Rb2 Nc6 Rb7 Nge2 Rb1 Nb4 Bg7 Kg1 Nf5 Ng3 Bd4+ Be3 c1R Nc2 Nh6 Nce2 Rb3 Bf2 Bb7 Bf5 Qg8 d8N Nc6 d7 Ne5 Bh7 Bb6 Nf7+ Kf6 d8Q Be4 Qd2 Re3 Qa5 Qd8 Rh2 Qd5 g5+ Ke6 g6 Kf6 Na3 Rcc3 g7 Ke6 g8B Kf6 Nd8 Kg5 Nc2 Nhf7 Nc1 Nh8 Nf7+ Kg4 Bg6 Rh6 Rh3 Qa8 Qdd6 Qb7 Ng5 Qd5 Nh7 Qc5 Bc4 Qd5 Rb1 a1Q Rb4 Qa4 Na1 Qd7 Qcc5 Qc7 Ra4 Qa7 Nf6+ Kg5 Ng8 Kg4 Be1 f2+ Kh1 f1N Bf2 Bf3 Bb1 Be4 Qcc7 f3 Kg1 Qda8 Rh2 Bf5 Be1 Q8b7 Ra3 Nd2 Qab4 Bg6 Ra6 f2+ Kh1 f1B Kg1 Qc6 Qa5 Bfd3 Bgd5 Qb5 Bb7 Nf1 Ra2 Qd5 Bf2 Bge4 Ra4
1n1Bn3/Q1RP1N1b/R3qq1R/1r2k2B/1p6/N2Q1rNR/2b2b1r/KN3nQ1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 d4 e5 Kd2 c5 Kc2 g5 Kb2 b5 a4 b3 d6 c4 h6 g4 h7 e4 a5 g3 d7 e3 d5 g2 d6 e2 h5 e1R a6 b4 a7 Na6 h6 Qb6 d8Q+ Ne7 Be2 Bd7 Rh3 Rc8 a8N Qa7 Nb6 Nc7 Bh5 Ne8 Ra6 c3+ Ka1 c2 Nc4 Re3 Ne2 g1N Ng3 Qb6 Nca3 Nf3 Qg1 Ba4 d7 Rc5 Qc7 Bg7 Qa7 Nc6 Bd2 c1Q Be1 Rf8 h8R Nd2 h7 Rf3 Bf2 Qf1 Be1 Ke7+ f6+ Ke6 f5+ Ke5 f7 Rb5 f6 Nb8 Bf2 Rg8 f8R Qe6 f7 Bh6 Bc5 Be3 Be7 Bf2 Bd8 Rg4 Rfg8 Re4 f8Q Rh4 Rh1 Rh2 Rg6 Qe2 Rh6 Nf1 Qf7 Qg6 Qc4 Qf6 Qd3 Qe4 Rg8 Qc4 Rg4 Qce6 Rc4 b2+ Ka2 Qg4 h8N Bc2 Rc7 Qh3 Nc3 b1B+ Ka1 Qhe6 Nf7+ Kf4 Qd1 Bh7 Qe2 Bbc2 Qd3 Rg2 Rh3 Rh2 Ng5 Ke5 Ncb1 Bd1 Qg2 Bb3 Qg1 Bc2 Nf7+
nQ4BQ/N2P4/BBbq1R1q/1rnNp1Q1/4q1Qn/3kR2r/2b3Rb/1B3K2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 b4 Kd6 g4 e5 f4 a5 g6 h5 b6 c5 b7 h4 g7 c4 g5 e3 b5 e2 f5 h3 b6 h2 g6 c3 f6 a4 f7 a3 Be3 a2 Nf3 c2 Rg1 c1Q Rg2 h1B Nc3 Na6 b8Q+ Qc7 b7 Ne7 g8B Rh5 g7 Rh2 Bh7 Rh3 g8B Bh6 f8R Bf4 Bb1 Ng6 Rf6+ Be6 Qe8 Nh4 b8Q Bh2 Qh5 Ra7 Qh8 Rb7 Kf2 e1N Bc4 Qc2+ Kf1 Rb5 Bg1 Qe4 Bf2 Kd7 d6 Kc6 d7 Qd6 d8Q Nd3 Nd5 Nc7 Be3 Nc5 Be2 Rb6 Ba6 Bf5 Qe7 Rb5 Qeg7 Qf4 Qg5 Na8 Bg1 Qe3 Qe2 Qd2 Qe4 Bg6 Qeg4 Bc2 Nb6 Bb3 Qgg7 Rb4 Bbd3 Ne4 Re2 Rb5 Rae1 Qh6 Bb1 Qe6 Q7g5 Bd1 Rf2 Ba4 d5+ Kc5 d6 a1Q d7 Qd4 Rd2 Bc2 Ree2 Qe3 Nd4 Qd6 Nc6 Bf3 Na7 Kb4 Nd5+ Kc4 Nb6+ Kc3 Rg2 Qed4 Rde2 Kd3 Na4 Q4b4 Bb6 Nc5 Nc3 Bc6 Nd5 Qe4 Re3+
B7/knQP1NRp/3qN2B/1bB2rnK/5q1b/Q2q1Qr1/RN1QN3/5n1r b - - 0 1 illegal: No possible last move
3kqQ2/Np1R3B/5q2/R1P1QQ2/Nr1n1r2/B1n2Q1N/BrN1bb1K/5b1n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 g5 h4 e5 a4 d5 f4 b3 Kf2 b2 Kg2 d4 h6 e4 h5 e3 f6 e2 a5 e1Q a6 g4 f7+ Ke7 f5 g3 c6 d3 f6+ Ke6 h7 d2 c7 Kd7 a7 Be7 f8Q Qe4+ Qf3 d1N c5 Qd3 h6 Qa3 f7 Qc3 Ra5 Nc6 Bd3 Nf6 Nh3 Nd4 Na3 b1B Nc2 Qe8 Ba3 Nf2 Rd1 Nh1 Kg1 g2 Kh2 Rb8 a8N g1R Be4 Rhg8 h8Q R8g4 h7 Nd5 Qe5 Bh4 h8N Bf2 Ng6 Re1 Ne7 Re2 Nc6 Rh4 N2b4 Bd3 Na7 Rb2 Nc2 Bf1 Bh7 Rg4 Qg8 Rf4 f8Q Rb4 Qff6 Qb2 Qfg5 Nc3 Qgh5 Qa1 Qef5+ Ke7 Nb6 Ra8 Na4 Bd7 c8B Bdb5 Qe5+ Kd8 Qhf5 Bbe2 Be6 Rb2 Ba2 Rb4 Nc8 Ra6 Na7 Rab6 Qgf7 Rb2 Qf8 R6b4 Be6 Qa2 Bf7 Qe6 Bfg8 Qf6 Ba2 Bg2 Rg1 Bgf1 Rg7 Ba6 Rf7 Bae2 Rd7#
bn3r2/p7/r6R/1qB1nNRq/2QP1Q1r/B1RR1q2/B1B1b2b/K3QkN1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kf6 g4 h5 b6 e5 d6 c5 b7 e4 d7 c4 g5+ Kg7 f6+ Kg6 b5 Kf5 g6 e3 b6 Ke4 f5 e2 f7 Kd3 g7 h3 f6 c3 Ba3 c2 Nc3 c1Q Nd5 h2 Ne7 h4 Nf5 Qe8 d8R+ Nd7 b8R h3 b7 Bb4 f8B Ne7 g8B Qb1 f7 Nc6 Bc5 Ne5 f8Q Rh4 Ba2 Qh5 Qg8 Ba5 Qf7 Qb5 Rc1 Bc7 Rg8 Qf3 Rg5 Qh5 Bg2 Bd6 Bgd5 Qf3 Bdb3 Qh5 Kf2 e1R Rc2 Ree4 Qe1 Ra4 Qg8 Ra6 Qe6 Nf8 Qf7 Be6 Rd8 Nfd7 b8Q Bd5 Rc4 Bf3 Qc7 Be2 Rc3+ Ke4 Qc8 Nb8 Bc2+ Kf4 d4 Bc7 Rh8 Bd6 Rh6 Bc7 Nf3 Bd6 Rhg1 h1Q R1g3 h2 Ng1 Qe4 Qc4 h1B Rgd3 Qd5 Qe8 Bc7 Qf1 Qdf3+ Ke1 Bd6 Kd2 Bc7 Kc1 Bd6 Rg8 Bg2 Ng7 Kg3 Nf5+ Kh2 Rg5 Bc7 Ng3 Bh1 Qe1 Kg2 Qf8 Bd6 Qf4 Bc7 Qed2 Bd6 Nf5+ Kf1 Qde3 Nbc6 Qd2 Ng4 Qf7 Rf8 Qe6 Qf2 Qg3 Nb8 Qc4 Ba8 Qf3 Bh2 Qff4 Qf3 Qde3 Ne5 Qd2 Qc6 Kb1 Qce8 Ka1 Qb5 Qe1+
1r1B2bQ/1QrQN1N1/2Nr4/nn1R4/1N2rB2/B3pP1B/1b2K1R1/1qbr3k b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 d4 Kf6 b4 e5 d6 c5 d7 h5 b6 a5 b7 e4 f3 c4 b5 a4 b6 h3 d5 Ke5 d6 e3 f6 Kf4 g5 Kg3 f7 a3 g6 h2 g7 h4 Qc2 c3 Bb5 h3 Ra2 Ra4 Ne2+ Kg2 Qd2 c2 Nbc3 Na6 b8B Re4 b7 Nc7 Nd5 Ne7 g8N Bg7 f8N Nc6 Nge7 Na5 Ne6 Be5 Bc4 Nb5 Nb4 Re8 Rf1 h1R Ng7 h2 Be6 Rg8 Rb2 a2 Qd1 a1R Nd4 Qc7 d8Q Qc4 d7 Qb3 Qf8 Ra3 Ra2 Qb1 Bg4 Bf6 Bf4 Rc3 b8Q Rc7 Ndc6 Bd4 Bb2 c1B Qb7 Rg1 Bf5 h1R Be6 Rh5 Bh3+ Kh1 Ba3 Rd5 Rg2 Bdb2 Ke2 Rh8 Qd3 Rg8 Rd1 Rf1 Rd2 Rd1 Qe8 Rh8 Qh5 Re8 Qh8 Rg8 d8B Be6 Qd4 Rdd7 Qd6 Re8 Rd5 Bg8 Qe6 Rd6 Qd7 Rc8 Bb6 Rb8 Na7 Rec8 Bd8 Rc7 Nac6
bQ2kB1b/3Rr3/7n/1Bb1Br2/2K5/QP1rrnp1/BrR1R1q1/N3N1NR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 g5 d4 f5 Kd2 a5 Kc3 c5 e4 a4 h6 a3 b6 f3 e5 f2 b7 c4 d6 g4 h7 g3 d5 a2 e6 f4 h5 f3 e7 Bh3 h6 Qb6 d7+ Kf7 d8R Bg2 e8B+ Ke7 d6+ Kf6 d7 Ke7 Na3 Qc6 Qd3 Ra7 Bf7 Qd5 Rb1 a1B Rc8 Nc6 b8Q Ne5 d8R Rb7 Be2 f1R Nc2 f2 Rd6 Nf3 Rd7+ Kf6 Bd2 Bc5 Re1 Rb6 Bc1 Re6 Bf4 Re7 Bd6 Re3 Bf8 Qc6 Rc1 Rd1 Re8 Re7 Be6 f1R Qdd6 Qe4 Qa6 Rd5 Qa3 Rf5 Bd3 Re1 Bd5 Re3 Bf7 Bd4+ Kb4 c3 Ba2 Qb7+ Kc4 Kf7 b3 Bc5 Be2 Bb2 Na1 c2 Bd3 Nf6 Bf1 Ng4 Bd3 Rg8 h8B Bg7 h7 Nh6 Be2 Bb2 Bc3 Rg6 Bf1 Rd6 Be5 Rdd3 h8N+ Kg8 Ng6 Kf7 Bc7 Bh8 Nf4 Qc6 Be5 Qa8 Re1 Qb7 Re2 c1R+ Rc2 Rb1 Be2 Rb2 Bf1 Bh3 Ng2 Qa8 Ne1 Bg2 Rc8 Qb7 Re2 Qc6 Qb5 Qa8 Rcc7 Ke8 Qb6 Qc6 Qba7 Qb7 Qb8+ Kf7 Qc8 Nh2 Rd2 Bb4 Qb8 Rc3+ Kd4 Bc6 Bb5 Rcd3+ Kc4 Bg2 Qba7 Ke8 Re2 Qf3 Rc5 Qf1 Qb6 Ba8 Qc7 Nf3 Qb8+ Kf7 Rc8 Qg2 Rcc7 Ba5 Rc5 Bb6 Kb4 Ba7 Rc1 Bd4 Kc4 Bc5 Qba7 Ke8 Rcc2 Ng4 Qb7 Nh6 Qb8+
2K5/bBRn2R1/3B2n1/5k1n/rR1R1r2/p1B1Q1P1/q1NNnNb1/rN1Qn3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 a5 Kc5 e5+ d6 h5 f4 h3 b4 a4 d4 h2 b6 e4 b5 c6 g3 a3 d5 h4 b7 e3 b6 e2 Bb2+ Kf7 f6 Kg6 f5+ Kg5 f7 e1R f6 h3 Bg2 Re3 Nf3+ Kg6 Bc3 Re6 Nfd2 Ne7 d7 Kf5 d6 Re1 Bd5 Bh6 f8N Ng6 f7 Ra4 Nh7 Qg8 d8R Rg1 d7 Be3+ Kd6 c5 Kc7 c4 Ng5 Rh4 f8N Rf4 Qe2 Re1 Rf1 h1N Nge4 h2 Ne6 Nf2 Ra2 h1N Rc2 Nd3 Nf2 Bd4 Qe3 Rd1 Bc6 Ne1 Bd5 Qf7 Rg8 Bc5 Rg7 Qg8 d8R Nd7 b8B Bb7 Bc6 Ba8 b7 Ba7 Kc8 Qf7 Bd6 Rc1 Bcb4 c3 b8Q Qg8 Rb2 c2 Bb7 Rd1 Rb3 c1N Bc3 Ne2 Rb4 Rc1 Qc7 Rd1 Qc4 Rc1 Qcd4 Qf7 Nc5 Qa2 Ncb3 Rd1 Na1 Rc1 Nd1 Nf2 Nc2 Ng4 Nf2 Ngf6 Rh1 Nh5 Rh4 Ndf6 Rdd7 Rd1 Rc7 Nd7 Ba6 Bg2 Bb7 Re4 Nf1 Rc1 Qd1 Rf4 Rg4 Rf3 Rgd4 Rf4 Nbd2 Ra1 Nb1 Kg5 Nfd2 Kf6 Nh1 Kf5 Nf2
1BRK2bn/n5RB/Nr2QQ2/Q1bNQnN1/6P1/2r3rk/2B1pr2/1q2N2r b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 e5 b4 a5 f4 c5 d4 h5 g4 c4 g6 h4 d6 Ke6 d7 c3 f5+ Kf6 d5 Kg5 g7 c2 b6 h3 d6 Kh4 b5 h2 b7 a4 f6 a3 f7 a2 b6 Nh6 g8B Rh7 Bd3 Kg3 Nc3 Kh4 Nf3+ Kg3 Qe1+ Kh3 Nd5 Nc6 b8Q Ra6 b7 Na7 Rf1 Qe7 d8N h1N d7 Qb4 Ne6 Qb1 d8Q Ng3 Qda5 Rb6 Qd6 Be7 f8Q Nf7 b8N Nh8 Na6 Rf7 Bh7 Rf4 Bd2 c1R Qf6 Rc3 Qe2 Bd7 Ne1 Rf2 Bc1 Bb5 Ba3 Bc4 Ng5+ Kh2 Qde6 Bc5+ Kd2 Nf5 Bc2 Rg3 Bb2 e3+ Kc3 e4 Ba3 Qb5 Rc1 a1R Qee5 Qb1 Qee6 Bf8 Bd6 Be7 Bb8 Bc5 Qee5 Bb3 Qc4 Ba2 Qb3 e2+ Kc4 e3 Ne7 Rb4+ Kd5 Rc4 Ke6 Rc3 Qbd5 Bc4 Kd7 Bb3 Nd3 e1R Kd8 e2 Qde6 Ra2 Nd5 Rb2 Rh1+ Kg2 Rh6 Rh1 Rg6 Ba2 Rg7 Rb6 Ne1+ Kh2 Ne4 Kh3 Ng5+ Kh4 Ba4 Rcf3 Qe8 Ba3 Nf4 Bg8 Rc8 Bc5 Q8e6 Rfb3 Nd5 Rbc3 Ngf3+ Kh3 Bb3 Qb2 Bc2 Qb1 Ng5+
1K1Q1RQR/7n/qb1n4/r3P1B1/B1N3Q1/2nb3N/bb1RQp1R/B4kbr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 a5 h4 c5 b4 f5 h6 g5 h7 a4 d6 g4 h5 a3 b6 g3 h6 a2 b5 g2 d5 f3 d7 f2 d6 f4 b7 f3 b6 Ne7 Rh2 Nf5 Nh3 g1B Bg5 Ra5 Nd2+ Kc3 e4 c4+ Ke6 Bg7 Bg2 f1B Qe2 f2 Rd1 a1B Qg4 Kd3 Bh1 c3 Nc4+ Kc2 Rd2+ Kc1 Bf3 c2 Bd1 Bad4 Qe2 Bc5 Kd5 Qf8 d8Q Qf6 d7 Nd6 Qg8 Qg6 d8Q Bb2 Qg7 Nd7 Kc6 Nf8 Kc7 Be6 b8R Be3 b7 Bb6+ Kc6 Bf7 Ra8 Qf6 b8Q Qe6 Qg8 Qc8+ Qbc7 Qa6 Qg4 Bd3 Qce7 B6d4+ Kc7 Bb6+ Kb8 Be6 Ne5 Ba2 Qee8 Kb1 Qeh5 c1N Nc4 Ne2 Ba4 Nc3 Qe2 Kc1 Qhf3 Qb5 Qg4 Qa6 Qg7 Rg8 h8B Nh7 Qgf8 Rg7 Qg8 Rg6 Ra7 Rf6 Rf7 Rf3 Rf8 Re3 Nf4 Rh3 Bd4 Rh5 e5 Rh4 Rg2 Rh2 Nh3 Rh1 Rh2 Ba3 Qf1+ Nd1 Bc6 Nf6 Ba1 Bb2 Qfe2 Nc3 h7 Nc8 h8R Nd6 Qee4 Nh7 Re2+ Kd1 Qe3 Rb5 Qef3 Ra5 Rd2+ Ke1 Ba4 Kf1 Qe2+
b1RnB1Q1/3rB2r/n2bR2Q/1qB1Pnn1/1pN3N1/2N5/Knk1N1r1/6RB b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 c5 Kc2 g5 Kb3 b5 h4 f5 a4 c4+ Ka2 c3 e4 g4 a5 f4 e6+ Kd6 h6 c2 h7 f3 e5+ Ke7 a6 f2 h5 g3 a7 g2 h6 Qb6 Be3 Bb7 Qc1 Na6 Nc3 Rd8 a8N Rd7 Nge2 g1R Bg2 f1N Rh3 Ng3 Bh1 Qc6 Nb6 Ba8 Nc4 Rg2 Qg1 Nf5 d6+ Ke8 d5 Nge7 Bc5 c1N+ Kb1 Nd3 Ka2 Nb2 Rh5 Rhg8 h8Q R8g7 h7 Rf7 Rh6 b3+ Kb1 b4 Qf6 Nh4 h8N Rh7 Nf7 Qb5 Qg5 Nc6 e7 Nd8 Re6 Nf5 Nh6 Ra7 Q1e3 Rd7 Ng4 Kf7 Qd2 Na4 Qde3 b2 Ka2 b1N Qc1 Nb2 Qg8+ Ke8 Qe3 Nd2 Rg1 Ne4 Qh6 Ng5 Ra1 Rb7 Rg1 Kd7 e8B+ Kc8 d7+ Kc7 d6+ Kc6 Nd1 Kd5 Kb3 Ke4 Ka2 Kd3 Ndc3 Ndf7 d8R Kc2 d7 Bd6 Rc8 Rc7 d8B Rd7 Bf6 Nd8 Be7
bn3q2/3Rrb1K/r1NQ1R2/1B1P2Qb/3bQ1R1/3prknN/N2R4/1bBN4 b - - 0 1 illegal: No possible last move
1bb2Q1k/B1N5/nKN5/P1Q2NB1/B3r2b/bRpR1q1n/4N2n/1Q1Bb1r1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 a6 Kf7 Ke2 b5 Kd3 e5 h4 g5 a4 Kg7 f4 c5 a7 b4 Kc4 g3 Kb5 c4 d4 b3 d6 g4 h5 e4 d5 e3 a5 g2 h6+ Kh7 d7 b2 f6 g3 f5 c3 d6 e2 f7 e1B f6 Bf2 Be3 Be7 Na3 b1N Be2 Qe8 Rh3 Qf8 d8B Na6 d7 Nd2 Rb1 Bd6 Rb3 Ne4 Qb1 Be1 Bd1 Bb7 Ne2 g1B Bg5 g2 Bb6 Be5 d8N Bc5 Nc6 g1B Rd3 Be7 Bd4 Bgf2 Bc5 Re8 Bce3 Kg6 h7 Nh6 Nc2 Bf4 Nc2d4 Bb8 Ne6 Ng4 Nc7 Ba3 Bb6 Qh6 f8N+ Kf7 Nfe6 Qh1 Ng7 Bc8 Bbe3 Rhf8 h8Q Nh2 Qh3 Kg8 Qf5 Re6 f7+ Kh8 Bb6 Bh4 Qf2 Rf6 Qc5 Re8 f8Q+ Kh7 a8B Nf2 Ne7 Nh3 Bc6 Rf1 Ba7 Rg1 Kb6 Qe4 Bb5 Qf3 Nc6 Re6 Nf5 Re4 Qfe7+ Kg8 Ba4 Kh8 Qf8+
1R4nN/1Bn5/2Rr1pqP/5rn1/4RN2/b1KQ2Rn/BQ1rB2n/Bb1N1k2 b - - 0 1 illegal: No possible last move, all moves rejected
6N1/B1k1n1br/2p4N/1Bn1Q2n/nRr2PQn/b5q1/1N2K1Q1/1bB1NR1Q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 e5 d4 h5 f4 a5 b6 h3 b7 c6 d6 a4 f6 h4 b5 a3 f7 a2 d5 h2 g5 h3 b6 e4 g6 e3 g7 e2 Nc3 Na6 b8Q Qe8 b7 Qe3 Nf3 Be7 f8Q Nc5 Na4 Rh7 Rb1 a1B Nb2 Ra4 Qf5+ Kd8 d7 Rc4 Qbe5 Na4 b8Q Ba3 Qg4 Ne7 g8N Qd3 Kf2 e1N Qb5 Qb3 Ke2 Ng2 Ne1 Nh4 Qe4 Ba6 Qeg2 Kc7 d8N Qg3 Nf7 Bc8 Qc5 Bf5 Nfh6 Bg6 Rg1 h1N Qcd4 h2 d6+ Kd8 d7 Nf2 Qd6 h1N Qe5 Ne4 Qdd5 Nec5 Qde4 Nf2 Qef3 Nfe4 Qh1 Nd6 Qfg2 Kc7 d8B+ Kb8 Qg7 Nde4 Bb6 Nf6 Ba7+ Kc7 Qh8 Nh5 Qe5+ Kd8 Nbd3 Bc3 Rb4 Be4 Nb2 Bb1 Kd1 Bd4 Bd3 Bc3 Ke2 Bd4 Rf1 Bc3 Qed5+ Kc7 Qdf5 Bg7 Qfe4 Rd4 Bb5 Rc4 Qe5+
n2N1r2/N3n1r1/1p1rN1R1/b4P2/2Q1q1bn/RQ2R3/1rBRN2K/Bk1B2r1 b - - 0 1 illegal: No possible last move, all moves rejected
bb1BQ2n/2N1r3/p2RB3/1Rn1bKb1/NrR1rN2/P1q1R3/N2QbB2/7k b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 h5 b4 d5 cxd5 Nd7 bxc5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 b5 Kf4 e6 d4 b4 h4 b3 f6 b2 h5 g3 d6 Kc6 a3 Kd5 d7 e5+ Kf5 g5 f4 g2 f7 a6 h6 g4 c6 e4 c7 e3 h7 e2 Rh3 e1R Be3 g3 Bf2 Be7 f8N Ra7 Ne2 g1B Qd2 g2 Ne6 Bg5 Re3 Bh2 Nc1 g1B Na2 Bb7 c8R Ba8 Rc4 Qa5 d8B Qc3 Bh3 Nd7 Bg4 Nc5 Nc7+ Kd6 d5 Nh6+ Kg6 Re8 h8N Re4 f5 Ke5 d6 Kf4 d7 Nf7 f6 Rb7 Bh3 Rb4 Be6 Qc2 Nbc3 b1B Na4 Qc3 Bd5 Bc2 Be6 Bd3 Rb1 Be2 Rb2 Bg3 Rb3 B1h2 Rb2 Rb7 Rb5 Rb1 Nc1 Rb4 Na2 Nd6 f7 Ra7 f8Q+ Nf7 Bd5 Kg4 Qg8 Kh3 Be6+ Kg2 Qe8 Be5 Kf5 Kh1 Ng6 Nh8 Nf4 Rb7 Bf6 Ra7 d8R Bg3 Rd6 Rb7 Ncd5 Rg7 Bd8 Re7 Rdb6 Bb8 Nc7 Bh2 Rd6 Bg3 Nfd5 Be5 Nf4
3BK3/Q2QR1P1/2n3R1/p1b2q1B/1R1QbN2/rrr5/kR2Nnr1/1rBnQ3 b - - 0 1 illegal: No possible last move, all moves rejected
1Rq3R1/Rn1b2pN/3nk3/B1rQnn1P/4Q1r1/bQb1N2B/3Q3n/2N1K2N b - - 0 1 illegal: No possible last move, all moves rejected
2NrN3/3p1bBQ/8/3NP3/B1Q5/2q1nRR1/KNr1QQbk/nrb1Brr1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 Ke6 h4 Kf5 e4+ Kf4 c4 Kg3 Kc2 f5 Kb3 a5 c5 g5 c6 f4 h6 a4+ Ka2 g4 h5 f3 b6 f2 h7 d3 b5 a3 e6 d2 h6 Qg5 e5 Nf6 e7 Ra4 e8N Ng8 b7 Bg7 c7 Qe3 b6 Qf4 Nc3 Qe3 Qe2 d1B Bd2 Rc4 Nd5 Qc3 Be1 Nc6 b8Q Nge7 b7 Na5 Nf3 Nf5 Nd2 Nb3 Rg1+ Kh2 Rg3 Ne3 Qa7 Rc6 b8Q Bb7 Rf3 g3 c8N g2 Qc7 g1R Nc4 Bf6 Nb2 Bg5 Bg2 f1R Qab6 Rf8 h8B Rg8 Rc1 Na1 h7 Ba4 Bg7 Bb3+ Kb1 Bh6 h8Q Rc4 Qh7 Rc5 Nf4 Bf7 Nd5 Rc4 Ka2 Rf8 Ned6 Rd8 Ne8 Ba8 Nde7 Be4 Nd5 Rc6 Rg3 Rc4 Bh1+ Bg2 Rd1 Rc5 Rd3 Nf5 Qe3 Qd4 Na4 Bh3 Be4 Nb3 Qf3 Bg2 Qe2 Qe3 Kb1 a2+ Kb2 a1R Qba7 Rac1 Ka2 Rb1 Nb2 Na1 Rc3 Qd4 Rcf3 Qd2 Bd3 Rc2 Bb5 Qd4 Ba4 Qc3 Qg8 Be3 Qcc4 Bc1 Qaf2 Ne3 Qh7+
5B2/b2N1n1k/2q3NN/1r2nbBK/1n2rQr1/2b2B2/Q1pPQ1R1/1QB2n1R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kg7 Kg4 e5 b4 a5 f4 c5 d6 h3 d7 a4 b6 e4 b5 e3 b7 h2 b6 a3 Qe2 a2 Kh5 c4 g4 c3 g5 c2 g6 Ra4 Nf3 Qc7 d8B Nh6 Na3 Rg8 Bg5 Nd7 b8Q Bc5 b7 Nf7 Qa8 Nde5 b8Q Qc6 Bg2 Re4 Qb1 Ba7 Nc4 h6 Rg1 h1N f6+ Kh8 g7+ Kh7 Nh4 Bf5 Ng6 Ng3+ Kh4 h5 Nb6 Rb8 g8N Nf1 Nd7 Rbb4 Nh6 Rb5 Qg4 e2 Bf3 e1N Rg2 Qa6 Qd5 N1d3 Qdb3 Nb4 Qa3 Nd8 f7 Qc6 f8Q Ndf7 Qd6 Re1 Qdd3 Re4 Qe2 Ne3 Qbb2 Nf1 Rb1 a1B Qaa2 Be6 Qbb3 Bc3 Qg3 Bg4 f5 Bh3+ Qf4 Bg4 f6 Bf5 Qbb2 Ne3 Kg3 h4+ Kh2 h3 Kg3 h2 Kh4 Nf1 Kh5 Nd6 f7 h1R+ Qh2 Rg1 f8B Ndf7 Qf4 Bf2 Ra1 Bb6 Qbb1 Ba7 Rh2 Rg3 Rg2 Rg4 Bb2 Nd5 Qc1 Nfe3 Bba3 Nb4 Qcb2 Qc4 Rh1 Qc6 Qbb1 Nf1 Bc1
1nk2BR1/2NN4/n3q2n/B1r1Nb1N/2b4b/RBKB1p2/P3r1Qn/rR3Q2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 Kd7 d4 f5 Kd2 c5 h4 g5 d6 b5 h6 c4 h7 f4 d5 b3 e6+ Ke8 e5 b2 h5 b4 e7 Kd7 e8N g4 h6 g3 Na3 b1R Ng7 g2 Nb5 b3 Nc7 b2 Rh3 Ra6 Nh5 Bb7 e6+ Kc8 e7 Bg7 e8B Nd7 Bd3 Ra5 Qf1 Nb8 Ba4 Qe8 Nf3 g1N Ne5 Qe6 Kc3 Rc5 Bb3 Ba6 Bd2 Bf8 Nd7 Nf3 Rg3 Rd1 Rb1 Be7 Be3 Bg5 Bd4 Bb5 Bg7 Nh2 Bf8 Bh4 Re3 f3 Qg2 Nf6 Qf1 Rg8 h8Q Rg2 h7 Nfg4 Qg8 Re2 h8N Nh6 Qgg2 Rde1 Ng6 Ba6 Rc1 b1B Nge5 Bc2 Rb1 Bb5 Rb2 Ra1 Rb1 Re1 Be2 Bf5 Bd3 Re2 Ndf6 Ba6 d7+ Kb7 d8B Kc8 d6 Bb5 Kb4 c3 Nfd7 c2 Ng3 c1N Nh5 Bc4 Kc3 Rd5 Nb5 Bh7 Ba5 Bf5 Nc7 Rb5 Ndf6 Rc5 d7+ Kb7 Ba4+ Nb3 d8R Nc6 Ra8 Nb8 Nfd7 Kc8 Rc1 Nd4 Bb3 Nc6 Rb1 Nb4 Re4 Nf7 Rg4 Nh6 Rg8 Na6 Bb6 Nb4 Ra3 N4a6 Ba5
2N1Q1N1/Q3Bn1k/2bQbb1r/4n1r1/1R1N3n/2b1pB2/NrqQ1P1K/B1R5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 d4 Kg7 g4 h5 f6+ Kg6 g5 e5 f7 a5 d6 c5 d5 c4 b6 a4 b5 c3 b7 c2 b6 a3 d7 a2 d6 e4 Bb2 c1N Nc3 h3 Bg2 h4 Kf1 e3 Rb1 a1B Na2 h2 Qd2 h3 Ne2 Nc6 b8N Nge7 b7 Rg8 Bf3 Ne5 Nc6 Ncd3 b8Q Qc7 d8B Be6 d7 Bg7 f8Q Bf6 Ned4 Nf5 Ne7+ Kh7 Qe8 Nh4 Nc8 Qc2 Qa7 Nf7 Be7 Nde5 d8Q Rb8 Qd6 Rb7 Rg1 h1B Rc1 h2 Rg4 Rb6 Bc3 Rb2 g6+ Kh8 g7+ Kh7 Be2 Bc6 Bf3 Nhg6 Kg2 h1R Kg3 Rh6 Kg2 Nh4+ Kh2 Rh8 g8N Rh5 Nh6 Rg8 Re4 Rgg5 Ng8 Rh6 Ne2 Rb5 Rb4 Rb7 Nd4 Rb6 Bb2 Rb5 Ba3 Bc3 Bb2 Rb7 Ba1 Rb8 Rc4 Rb2 Rb4
2KN1R2/2nB4/kQ4Q1/3bb2r/rbn1N1qB/2Pr2NR/2bQnQpN/2B5 b - - 0 1 illegal: No possible last move, all moves rejected
RR3K1Q/N1rb1Q2/rrnR3n/N1B1Nb2/1n1q3k/p1bR2N1/4B2P/2Br4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 f5 d4 c5 b4 a5 e4 a4 d6 g6 d7 c4 Ke6 a3 Kf7 c3 b6 c2 e5 Qc7 b5 Ra5 b7 Rh6 e6 Rh8 h6 Qd6 d8N Ra6 d5 Qc7+ e7 Bg7 d6 Kh4 d7 f3 e8R g5 b6 f4 h7 f2 Qd5 g4 Be2 f1B Nc6 f3 Na7 f2 Nc3 g3 Ne4 g2 Ng3 Qc5 d8N Qd4 Ndc6 Bd7 Na5 Nc6 b8B Bf6 Kf8 Nh6+ Qg8 Nb4 b7 Be5 Bf3 Bd3 Bd6 f1R b8R B3f5 Bc5 Rd1 Be2 Nc6 Ra8 Nb4 Reb8 Rb6 Nh3 g1N Ng5 Nf3 Nf7 Bf6 Rb1 Ne5 Rb3 Nec6 Rd3 Ra6 Ne5 Rb6 Bb2 c1R Rg1 Rc3 Bc1 Ra6 Be7 Rc5 Rg2 Rb5 Bc5 Rbb6 Rf2 Bg5 Rff3 Bd2 Rf2 Bc3 Rf1 Be4 Rf6 Bef5 Rd6 Qe3 Kg7 Qd4 Qf7 Rc8 h8Q Rc7 Kf8
b1nK2Q1/b1R4r/1q1b3n/rB2Rk2/1Q2N2n/p2Q1r1R/QRBP2N1/Br6 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 h5 b4 a5 b6 h3 b5 c4 b7 h2 b6 h4 g5+ Kg7 Ke5 c3 f4 e6 f6+ Kg6 d6 c2 f7 h3 d7 a4 f5+ Kh7 g6+ Kh6 f6 Kg5 g7 a3 Nf3+ Kg6 Nc3 Ra6 Ne1 Bb4 f8Q Nh6 g8B Ra5+ Bb5 Rh7 Bb2 c1R f7 Rb1 Qb3 Bc5 Ne4 Bd6+ Kd4 e5+ Kd5 Qc7 Ke6 Nc6 b8R Na7 b7 Qb6 Ng2 Rf1 Qa2 Rf3 Rhe1 h1N Rac1 h2 Rc7 Ng3 Ba1 h1R Qd8 Ngf5 f8R Nh4 Re2 Rfh3 Rf3 Rb1 Rd3 Rf3 Qf8 Rf4 Rh3 Rf2 Qf3 Rff1 Qd3 Rf3 Kd5 Kf5 d8Q Bd7 Bf7 Nc8 Bg6+ Kg4 Qe7 Bc6+ Ke6 Bd5+ Kd7 Bc6+ Kd8 Bd5 Nc5 e4 Qf7 e3 Qg8 Kg5 Re1 e2 Ne4+ Kg4 Rc1 e1B Rc5 Bc6 Re5 Bf2 Ra8 Qa6 b8Q Ba7 Qb6 Bd5 Rb8 Ba8 Qbd4 Qb7 Qb4 Qb6 Rb7 Qf2 Rc2 Qg1 Rb2 Qb6+ Rc7 Qe3 Bf7+ Ng6 Re8 Qb6 Bb3 Kf5 Bc2 Nh4 Re5+
2KNk1qr/Q1R3b1/2R2bBB/1n3p1B/Q2rbNP1/n3n3/Q1R2B1n/r1R5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 a5 Ke4 f5+ Ke5 c5 d4 a4 e4 h4 b4 a3 g6 a2 d6 h3 d7+ Ke7 b6 h2 b5 f3 b7 c4 g7 f2 d5 c3 b6 c2 d6+ Kf7 Nd2 Qc7 d8R Rh6 Nb3 Qc4 d7 Qe2 Nh3 Ra5+ Nc5 Ra3 Ne6 Ne7 Kd6 Qe3 Kc7 Rb3 g8Q+ Kf6 Be2 Ng6 e5+ Ke7 Bh5 f1N g4 Nc6 b8R Rd3 b7 Qg5 Be3 c1B Qa4 Rd6 Bf2 Nd4 Nhf4 Nh4 Rb1 a1N Rb6 Nac2 Rb2 Na3 Rc2 Nd2 Ra8 Qg7 b8Q Nhf3 Ra6 Bb2 Qa7 Bb7 Rc8 Be4 Rac6 Nf1 Nd8 Rh8 Qa2 Qg8 e6 Bg7 Kb8 Ne3 R8c7 Rd5 Kc8 Ndb5 Rf1 h1R Ra1 Kf6 e7+ Rd6 e8B Ke7 Rg1 Nh2 Beg6 Rd1 Re1 Ra1 Rb1 Rd1 Rbc1 Kf8 Nf7 Ke7+ d8B+ Ke8 Bg5 Bbf6 Bh6 Rd4 Nd8+
b1bQQ1k1/2Bbr3/2qn4/PRr1N1b1/RK1N1r1B/1Bp5/2R1B3/2nNNn2 b - - 0 1 illegal: No possible last move
rQ2K2Q/2QR3n/1B1B1R1p/8/1Nbq1brQ/PBBr3n/n1bkN3/1R2b3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 g4 c6 d4+ Kb6 f4 Ka5 f6 b3 f7 Kb4 a3+ Ka4 f5 h6 d6 e6 f6 b4 g6 c5 d7 c4 g7 c3 d5 c2 d6 b2 g5 Kb3 g6 Na6 Qd4 Be7 f8B Nc7 f7 Nd5 Bd2 c1N Nc3 Kc2 Nge2 b1B Qh4 b3 Na2 b2 Bc3 Ngf6 g8Q Ba6 g7 Nh7 Nb4+ Kd1 Rh3 Bc2 Rb1 Bg5 Rd3+ Bd2 Be7 Nf4 f8R Nh3 Rf6 Bc4 Qf8 Qb6 d8B Rg8 d7 Qf2 Kd6 e5 Qe8 e4 Bb6 e3 Qb8 Qf4+ Kc6 Qd4 Bd6 Rd8 Bg2 Rg8 Bd5 Rd8 Ng3 e2 g8Q e1B Qh8 Rg8 d8Q Rg4 Rdf3 Bf4 Kd7 Ra7+ Qdc7 Ra8 Ne4 Ke2 Rd3 Na2 Rdd1 Ke3 Ke8 Ke2 Ng3+ Ke3 Ra1 b1R Ne2 Rb2 Rab1 Rb3 Bb2 Rd3 Bc3 Ba6 Bb3 Bc4 Rf7 Beg3 Rf1 Bf2 Rd7 Be1 Bb2 Kd2 Rf3 Bfg3 Rf6 Bf4 Bc3+
4rq1n/2B1R3/2bk1P2/b2rn3/2Q2Rp1/KN1b1N1N/bN1Q1QB1/2nr1RR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 h4 d5 b4 Kd7 c4 e5 Kc2 g5 Kb3 e4 f4 a4+ Ka3 d3 h6 d2 b6 g4 h7 d4 c5 e3 b7 d3 b5 e2 b6 e1N h5 Ng2 h6 Qe7 f6 Nc6 b8N+ Ke6 f5+ Kd5 b7 Ne5 f7 Ra7 Nc3+ Kd4 Nh3 Qe6 Rg1 Qe7 Nd7 Ra5 b8N Nf4 Bg2 Ne2 Na6 Bb7 Qc2 d1B Qd2 Bb3 Nd1 Bc2 Nb2 Bc6 Rb1 Bg7 f8Q Qd6 Qf7 Ne7 f6 Re8 h8R Bf8 h7 N7g6 Rg8 Qb8 Rg7 Nh8 Qg8 Bd6 Re7 Bc7 Rf1 Rb5 Qa2 Ba5 Rf4+ Be4 c6 Rd5 c7 Qa8 Qd1 d2 c8Q Bd3 Nac5 Qb8 Qe1 d1B Qd2 Bb3 Qc6 Rd6 Qb5 Kd5 Qc4+ Kc6 Ra1 Rd5 Rb1 Kd6 Ra1 Nhf7 h8R Qd8 Rh5 Nh8 Rhf5 Qc8 Rf1 Bf3 Rf4 Qd8 Qb1 Ba2 Nb3 Qa8 Qbc2 Qd8 Rh7 Qe7 Rg1 Qf8 Re7 Bfe4 Qe1 Bf3 Qf2 Bfe4 Be3 Bf3 Raf1 Nc1 Qcd2 Bfe4 Nd1 Bf3 Bb6 Bfe4 Kb2 a3+ Ka1 Rc5 Nb8 Ne2 Ng5 Bb1 Nb2 a2 Nc6 Bf3 Ncd4 Bc6 Nh3 Rb5 Nd1 Rd5 Kb2 a1R Nf3 Ba2 Ka3 Rb1 Nb2 Rd1 Bd8 Nc1 Bc7+
BB4K1/N4rRn/1RrNnpRN/B2Bb1rb/2b3qP/3QnnQ1/6k1/7R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 g5 h4 a5 b4 c5 d4 f3 h6 g4 b6 g3 b7 c4 b5 a4 b6 g2 h7 f2 Bf4+ Kd7 Kf5 c3 e4 a3 d6 Kc6+ d7 a2 e5 Kd5 e6 c2 e7 c1R e8B f6 Kg6 Ke4 Kf7 Na6 b8Q Nb4 d5 Ra7 b7 Ra5 d6 Ra6 Nf3 g1N Nh2 Rcc6 Na3 Nd3 Bg2+ Nf3 Ng4 f1B Nc4 Ra7 Nh6 Ne7 Rg1 Qa5 d8B Qb4 d7 Nc5 Ba5 Ne6 d8N Rg8 h8R Rg5 Rg8 Ng6 Rg7 Bd6 Kg8 Be5 Bf7 Ngf8 Qb3 Nh7 Nd6+ Kd4 Rh1 Bc4 Rag1 a1N Rg6 Nc2 Qd3+ Kc5 Qc7 Ne3 b8R Bd7 Rb6 Be8 Qb1 Kd4 Bg3 Nef8 Bd5 Ne6 Rg7 Bh5 Bh2 Bg3 Qd3+ Ke5 Rg6 Kf4 Qb8 Rf7 Qc7 Rc5 Nc6 Qa4 Na7 Qd1 Ba8 Rc6 Bh3 Qe2 Bf5 Qg2 Be4 Qh3 Bd5 Qg4 Ne4+ Ne5 Rg7 Kf3 Nd6+ Kf2 Rg6 Nf3 Rg7 Be5 Rg3 Qf4 Rg4 Qg3 Rg6 Kg2 Rg7 Rf5 R4g6 Rg5 Qd7 Ba1 Ndc8 Nef8 Qd6 Ne6 Qc7 Qg4 Qe5 Nf5 Qe1 Ne3 Bb8 Bb2 Nd6 Be5 Qg3+
3NQR2/Q3R1b1/Nrp2nK1/8/RbBnQ1br/5nq1/1B1B1Pk1/r3QB1r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 g4 a5 d4+ Kf6 b4 h5 g5+ Kg7 d6 e5 b6 a4 b7 a3 f6+ Kg6 b5 a2 d7 h3 d5 c6 f7 h2 b6 h4 d6 h3 Na3 Rh7 Qe1 Kh5 Kf5 Kh4 g6 e4 g7 e3 Bb2 e2 Kg6 Nh6 g8B Ra4 Nc2 Bg7 f8R Re4 Bc4 Nf5 Nb4 Qc7 Na6 Nd4 d8Q+ Kg4 d7 Qg3 Qe8 Rh4 d8B Nd7 b8Q Nf6 b7 Be6 Rd1 a1B Ba5 Re3 Qbd8 Rb3 b8Q Rb6 Nf3 Bc8 Rg1 h1R Qd5 h2 Qa7 Kf4+ Ng5 Bg4 Rg2 Rg1 Qde6 h1R Nf7 Kf3 Rb1 Nf5 Bd2 Nd4 Bbc1 Bc3 Ra1 Bb4 Nd8 Qe5 Bb2 Qg3 Qc1 e1N Ra4 R4h3 Rh2 Rh8 Rh5 Rh7 Re5 R7h4 Bfe2+ Kg2 Bf1+ Kh2 Re3 Nef3 Qc3 Qb8 Qe4 Qg3 Bfd3 Ra1 Bf1 Kg1 Qc1 Kh2 Qe1 Kg1 Qd3 Kh2 Re7 Kg1 Qde4 Kh2 Bfd3 Kg2 Bf1+
1b4rN/N5N1/1P1R4/1b2qk1B/2BB1bRK/5Q2/r2n1pRR/nn1BQ1rn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 h5 d4 f5 b4 a5 e4 c5 g6 f3 Kg3 a4 g5 c4 e5 f2 e6+ Ke7 g7 f4+ Kh4 f3 g6 Kf6 e7 c3 e8B a3 b6 c2 b5 a2 b7 Qe7 d6 Be6 b6 Rh6 d5 Nc6 b8Q Ne5 d7 Ra5 d8N Qb7 d6 Bf5 d7 Be6 Bc4 f1R Rh2 f2 Nc3 Qd5 Nh3 Rh8 Bb2 c1B Ng5 Ne7 g8R Rg1 g7 Kf5 Qa8 Bf4 Nb5 Ra4 Rb1 a1N Qe1 Ra2 Ngf7 Qe4 Rc1 Nd5 Bd4 Nc3 Na7 Bd6 Rc2 Qe2 Qf3 Nb1 Rd2 Bd5 Ne6 Bb8 d8R Bc6 Rd6 Bb5 Bb3 Nc4 Bd1 Qe3 Rc2 Ncd2 Rc4 Qe5 Rb4 Rh6 Nh8 Rf6 Rf8 Rf7 g8B Rf6 Bgf7 Rfg6 Rg8 R6g4+ Kh3 h4 Bh5 Rg7 Bef7 Rh7 Rgg2 Rg7 Rd7 Rg8 Ng7+ Kf6 Kg4 h3 Bd5 Ra5 Kh4 Ra2 Ne8+ Kf5 Bc4 Rg7 Rd6 Rg5 Rg4 Rg8 Rhg2 h2 Ra4 h1N Rh2 Ra3 Rgg2 Ra2 Bce2 Ndb3 Bc5 N3d2 Re4 Ra5 Bc4 Ra6 Bd4 Ra2 Qb3 Be3 Reg4 Bh6 Qf3+ Bf4 Ng7+
R1k3B1/R4nBr/1p1B1Q2/R2Rb2q/2NB4/1Q3P1N/2n3b1/nKbrr1Nn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 d4 e5 Kd2 g5 Kc2 c5 a4 g4 h6 g3 f3 g2 d6 c4 f6 b6 a5 c3 f7 e4 a6 e3 a7 e2 h5 e1B h7 Bf2 d5 Qe7 h6 Na6 Rh5 Qg5 Na3 b3+ Kb1 b2 Nc4 Bg3 Qb3 Nb4 Bf4 Nc2 Bd3 Bg7 f8Q Be5 Qf6 Be1 Bg6 Bd2 Bf7 Bc1 Ra5 Rb8 a8R Qh4 Rg5 Qh5 Rg7 Ba6 Bg3 Re8 Bf4 Bc8 Bh2 Re7 Bg3 Kd8 d7 Kc7 d8N Bh3 d6+ Kd7 Ne2 g1N Ne6 Bg2 N6f4 Nh3 Ng1 Nf2 Nfh3 Nh1 Bd5 Bd4 Bf7 Re1 Bf4 Be5 Bg3 Kc6 d7+ Kc7 d8R Na1 Rdd5 c2+ Ka2 b1N Be6+ Kc6 Rga7 Na3 Bf4 Bc3 Bb8 Be5 R7a6 Kb7 Bf7 Ne7 R6a7+ Kc8 Bg8 Nc6 Bf7 Rg8 h8B Rg7 h7 Nd8 Bg8 Re7 Bg7 Nf7 h8B Bg5 Rd3 c1R Rdd5 Rcd1 Rab5 Bc1 Rba5 N3c2 Kb1 Rc7 Bf8 Beb2 Bc5 Ne5 Bf2 Rh7 Bg7 Nf7 Be3 Be5 Bf2 Nd8 Bd4 Nf7 Bd6#
2rk1R2/1pr2rbn/4B3/Nb6/2NNR2K/RB1n1Rn1/1PQ1b1rB/1N1Q3q b - - 0 1 illegal: No possible last move, all moves rejected
2rNbr1r/Np1B4/RB3NQb/1R1n1n2/1R2B2r/nP1qk1N1/2Q3K1/1b3R2 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 gxh4 Qa4 Nh6 Qxa5 d5 cxd5 Ng8 Qa4+ Nd7 Qa7 Nb8 f4 Kd7 Kf2 Kd6 a4 e5 g4 h5 d4 c5 f6 e4 b3 h3 a5 h4 f7 c4 g5 c3 g6 h2 f5 h3 a6 c2 g7 Be7 f8Q Nc6 f6 Bf5 f7 Na5 Qc5+ Kd7 a7 Qb8 d6 Ke6 d5+ Ke5 d7 Qd8 d6+ Kf6 Ra4 Qe8 d8R Nc6 d7 Nb4 Bb5 Nd5 Nc3 Ke5 Nge2 Nh6 g8B Bg5 Be3 c1R Rf1 h1R Bh7 h2 Ng3 Bf4 Rc8 Qd8 Rb4 Bg6 Qc4 Nf5 Kg2 Bh6 Bb6 e3 Qg8 e2 f8N Be8 Qg6 Rc2 Rc5 e1N+ Kh3 Rc8 a8R Rf2 Ra6 Nc2 Ba4 Rf4 Nb5 Na3 Na7 Rf3 Rcb5 Rf2 Bd4+ Kf4 Qcc6 Rf3 Qc2 Rf2 Bb6+ Kf3 Bc7 Ke3 Ba5 Rf3 Kg2 Rf4 Ne6 Rh4 Ng5 Rf8 Bc7 Qe7 d8N Qd7 Rba5 Qb5 N5e4 Qd3 Bd7 Rh8 Rc1 Rf1 Rab5 Rf3 Nf6 h1B+ Kg1 Rf2 Rf1 Be4 Ba5 Rf3 Kg2 Qd4 Qa2 Bb1 Qc2 Qd3 Qg8 Nd4 Be4 Nf5 Qg6 Nfe7 Nfh5 Rff8 Nf6 Nf5 Bb6+
1q5N/Nrb1BQ2/b1qB3p/rk2P1q1/2q2R2/nq3NN1/B1R1nQ2/2R2K1R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 g4 a5 b4 c5 d4 f5 g6 a4 g5 c4 g7 a3 e5 f3 g6 h6 d6 c3 b6 Kc6 b7 a2 b5+ Kb6 d5 c2 d7 f4 d6 Qe7 d8B+ Kc5 b6 Qe8 d7 Nc6 b8R Na7 b7 Nf6 g8Q Qe7 g7 Rh7 Bc4 f2+ Kf1 Ne4 Nc3 Qg5 Qf7 Bd6 g8N Bc7 Ne7 Nb5 Qd2 Na3 Nf3 Ra5 Ne2 Nc3 Ng3 Ne2 Rb1 a1Q Ba2 Qd4 Bb2 Kb5 Rc1 Qc5 Bc3 Rg7 Bb4 Qc3 Bd6 Qb3 Ra8 Rh7 b8R+ Bb7 Rc8 Ba6 Nef5 Rg7 B8e7 Rh7 d8N Rg7 Re1 c1Q Ra7 Qc6 Rc1 Qb7 Qe3 Qb8 Ra8 Bb6 R8c2 Bc7 Bf6 Rh7 Ne7 Rg7 Nc8 Rh7 Bfe7 Rg7 Kg2 f1Q+ Kh2 Qe1 Kg2 Qec3 Kf1 Qc6 Qf2 Rh7 Qe8 Rg7 Nf7 Rh7 Nh8 Rg7 Ne1 f3 Qf7 Rh7 Qe3 f2 Nf3 Bb6 Ra7 Bd8 Rd7 Bc7 Rd8 Rg7 Rf8 Rh7 Qh5 Rg7 Rf4 Rh7 Qf7 Rg7 Kg2 f1Q+ Kh2 Qd1 Kg2 Qdd3 Qh5 Qf6 Bd8 Bb6 Qf2 Qg5 Kf1 Rb7 B8e7 Bc7 Qf7 Qdc4 Na7+
KNq1Q2R/n5b1/rQ1pB3/1r3qB1/3QP3/2R2brn/2NR1Brk/1R1r1B2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 a5 c4 f6 b4 d3 h6 d2 c5 g4 h7 a4 h5 g3 h6 d6 b6 a3 c6 a2 b7 g2 c7 Ra6 b5 Be7 b6 Ra5 Rh3 Rc5 Nf3 g1R Na3 Rd5 Nc2 Rg2 Rb1 Nc6 b8R a1R b7 Ra6 e3 Bd7 c8B Rb5 Ra8 Rg3 b8Q Na7 Qb6 f5+ Kd4 f4 e4 Bg5 Kc4 Bf6 Nfd4+ Kf7 e6+ Kg6 e7 Kg5 e8Q f3 Nc6 Kg4 Nb8 Bg7 Rh2 Ne7 Rf2 Rg8 h8B Nd5 h7 Bf5 Be6 Nf4 Re2 f2 Re3+ Kh4 Rc3 Be5 Bg7 Bg4 h8R+ Bh5 Bh6 Nh3 Be3 Qc8+ Bc5 Bg7 Kd5 Rb4 Bd4 Rg2 Be3 Kg3 Bg5+ Bf3 Ba3 Rb2 Bc5 Kh2 Bce3 Qd8 Bd4 Rb5+ Bc5 Nc8 Kc6 Na7+ Kb7 Rg3 Qc1 d1R Qd2 Rg2 Bce3 Rg3 Qd4 Rg2 Bfc4 f1Q Bf2 Qe1 Bf1 Qe3 Nc6 Qf4 Rb8 Qc7+ Ka8 Qf5 Rb7 Qc8+ Nb8 Bh6 Rbh7 Rg6 Rhc7 Bg7 Rd3 Rg3 Rd2 Rg2 Rc3 Rg3 Bd8 Rg2 Bf6 R6g3 Bg5
1q5N/BBkrqn1n/2p1PbbB/8/3Bq1N1/3N2qQ/3rRQ1q/KQ4RN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 d4 g5 Kd2 a5 Kc3 f5 e4 c6 b4 f3 Kb2 f4 h6 g4 d6 f2 b6 a4 b7 g3 h5 f3 b5 g2 e5 Ne7 h7 Ng8 b6 Qg5 h6 Qf4 d5 Ra5 e6+ Kd8 d7 Ra7 Qe2 Be7 Rh2 Qf8 Nh3 g1Q Nc3 Bf6 Nf4 Qg6 Nd3 Na6 b8B Nb4 b7 a3+ Kb1 Qgf7 Ne4 Q7e7 Ng3 Qfg7 Nh1 Qg3 Rg2 Qh2 Be5 a2+ Kb2 Qg3 b8B Ba6 Bd4 Rb7 Ba7 Kc7 d8N Bb5 Ne1 Bd3 Nf7 Bg6 Ne5 Qh2 Rb1 Nd3+ Ka1 Qg3 Ng4 Ne5 Qb5 Nf7 Nd3 Qh2 Be2 f1Q Qc5 f2 d6+ Kc8 d7+ Kc7 Rg1 Qfg2 Rb2 f1Q Qc2 Qd1 Qb1 Qc2 Bf1 Qcf2 Re2 Qfg3 Bg5 Qe4 Be3 Kd6 d8Q+ Rd7 Qf8 Kc7 Bc1 Be5 Be3 Nf6 Bg5 Rg8 h8Q Nh7 Bc1 Bf6 Bd2 Nhg5 h7 Rg7 Qhg8 Rd8 h8N Nh7 Bh6 Rd6 Qa8 Rd7 Qgf8 Rg8 Qg7 Rb8 Qf8 Rb2 Qae8 Rd2 Qc8+ Kd6 Qa6 Kc7 Qa3 Qb4 Qc5 Qb5 Qf5 Qb8 Qf2 Kd8 Nde5 Rb7 Re3 Qgh3 Ba6 Rd7 Bb7 Kc7 Re2 Qh4 Qh3 Q4g3 Qf3 Rd1 Kb2 a1Q+ Kb3 Rd2 Nd3 Qa6 Qf2 Qc4+ Ka3 Qc5+ Kb3 Qe7 Kc3 Rd1 Kb2 Rd2+ Ka1
KB3bQq/1Br1pb1b/4Nb2/1N1RN3/n1nq2k1/2QbQ1B1/Rr4P1/3N3B b - - 0 1 illegal: Other
4qBKN/1RQP1Nn1/kB3N2/1R2b3/RbqQ2p1/b1B2bn1/1br5/1B1N1r2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 a5 Kc4 e5 b4 c5 d4 Kc7 h4 Kb7 f4 g5 f6 g3 h5 g4 d6 e4 Kd5 g2 f5 a4 f7 a3 f6 e3 h6 e2 d7 e1B Ke6 c4 h7 c3 d5 a2 b6 c2 d6 Bd2 b5 Qc7 Bb2 c1Q Rh5 Bg7 f8B Bg5 Kf7 Bd2 Nh3 g1B Bc3 Qd8 Bd3 Ra3 Ng5 Ka8 b7+ Ka7 Ne4 Nc6 b8R Nce7 Rb7+ Ka8 b6 Bc5 Qg1 Nf5 Qd4 Nge7 Rg5 Rg8 h8N Ng3 Rf5 Bb4 Rb5 Nef5 Be7 Re8 Bc2 Bf8 Kg8 Bf4 f7 Ng7 Nf6 Be5 Bd3 Ra6 Be4 Ba3 Ba5 Qcc7 Nc3 Qc4 Nd1 Bb4 Bb1 Ba3 Rc7 Bb7 Bc3 Bf3 Rb7 Qdc8 Bd8 Q8c6 Bc7 Rc8 d8N Qe8 d7 Ra7 Ne6 Bfb4+ f8B Qf1 Nd8 Qc4+ Ndf7 Ra5 Bd8 Rc5 Rc7 Kb8 b7 Ka7 b8Q+ Ka6 Rcb7 Rc6 Qc7 Rc5 Bc2 Ra4 Rc1 a1B Bf5 B1b2 Ra1 Qf1 Bb1 Qe2 Bd2 Rc2 Bc3 Qc4 Qb8 Bc5 Bda5 Rb4 Qc8 Rb3 Qc7 Bcb4 Bd2 Re3 Bc3 Re1 Ra2 Rf1 Ra1 Bc5 Ra2 Bab4 Ra4 B4a3 Ng6 Bcd6 Nh8 Bdb4 Bb6+
R6B/Nqk3r1/1q5n/2Q1Kb2/2BNnN1r/3bQ1bR/1pPBQ2q/4bQ1N b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 g5 Kd3 e5 Ke4 b5 a4 d6 h4 Kd7 f4 g4 f6 b3 c6+ Kc7 f5 b2 f7 g3 f6 g2 a5 b4 a6 b3 a7 Be7 f8Q Rh7 f7 Nh6 Na3 b1Q Nh3 g1B Nf2 Nd7 Rh3 Bh2 Qe2 Rg7 Bd2 Bg3 Nh1 Nc5+ Kd5 Rb8 a8Q e4 Qa7+ Rb7 Qe8 e3 f8Q Ne4 Qc5 Bf5 Qf6 Rb4 Nb5+ Kc8 Nd4 Kc7 Ra8 b2 Bg2 Qg1 Bf1 Qh2 Qff8 Qb8 Qff7 Qb6 Qf6 Ng4 h6 Bd8 h7 Nh6 h8N Be1 Qg4 e2 h5 Be7 Qff8 B7h4 Ng6 Beg3 Qe6 e1Q Nf4 Qef2 Bb5 Qf3 Bc4 Be1 Qg2 Bhg3 Qff6 Qb3 Qg5 Qb7 Qf1 Ra4 Qg4 Q3b6 Qge2 Rb4 Nf3 Ra4 Kd4 d5 Ke5 d4 Qe8 d3 Nd4 Ng8 h6 Rb4 h7 Nh6 h8B Ra4 Bc3 d2 Ba5 d1B Bd2 Rb4 Qe3 Be2 Qh5 Bd3 Qd1 Qc8 Qde2 Kd8 c7+ Kd7 Q2f2 Qcb7 c8N Kd8 Q2e2 Kd7 Nc6 Kc7 Nd4+ Kd8 Bb3 Q7a6 Nc6+ Kc7 N8a7 Qab7 Bf7 Rd4 Bc4 Ng5 Rb8 Rd6 Ra8 Rdg6 Qeg1 Ne4 Qgf2 Rg4 Qfe3 Rh4 Nd4+
BNbkrNrQ/n1R3Bn/4B2b/QQ1R4/8/4qBKP/1b1n3p/R1Qq2n1 b - - 0 1 illegal: No proof kernel
n5QB/N1RNqq2/1r1NnR1Q/6r1/1b4kn/1K1Q2qP/1Q3np1/BBB2b2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 d4 a5 Kd2 c5 Kc2 e5 f4 g5 f6 g3 f7 a4 d6 Ke6 d5+ Kf5 b6 c4 b7 c3 d7 e4 b5 a3 b6 a2 d6 g4 Nf3 e3 Ng5 e2 Na3 e1N+ Kb3 c2 Nb5 g2 Na7 g1N Ne4 g3 Qd3 Kg4 f5 g2 f6 Qe7 d8B Nef3 d7 Ng5 Nd6 Na6 b8Q Nh6 b7 N1f3 Bc7 Ne6 d8Q Rg8 Be2 Rg6 Rf1 Rg8 Ba5 Rg7 Bc3 Nac7 Rb1 Bd7 Ba1 Rg5 Qe8 Bb5 Qc6 Bg7 Qg8 Rb8 f8B Na8 f7 Bc3 Bg7 Bb4 f8N Qf7 Nd7 Ba6 Ba3 c1Q Bh8 Qe1 Rc1 Qg3 Qb6 Bb5 Rc7 Qe7 Bc1 Qf7 Bac3 a1Q Qbe3 Qa6 Ba1 Qc6 Bd1 Qc5 Bc2 Nh4 Bb1 Qce5 Rf3 Qef6 Rf5 Q6e7 Rf6 Ba6 Qdd2 Bf1 Qdd3 Kh5 Qed2 Ng4 Qf4 Nf2 Qfe3 Rd8 b8Q Kg4 Qed2 Rf8 Qb6 Rc8 Qb2 Rb8 Qbe3 Rb6 Qed2 Rg6 Qh6 Rg5 h3+
QR1q1BN1/2k2n2/B1N1R1q1/K1n1N1b1/N2r1r2/2Qb1P1B/p3nn2/Q2B2q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 Kd2 e5 Kc3 h5 g4 c5 b4 a5 b6 h4 b5 e3 g6 a4 g7 h3 b7 a3 b6 e4 g5 e2 g6 e1N d6 c4 Kb4 c3 d5 h2 Bh3+ Ke8 Nf3 c2 Ne5 e3 f3 a2 Nc3 e2 Ba3 c1N Rb1 Ne7 g8B Nd7 b8Q Nc5 b7 Be6 g7 Nc8 d7+ Ke7 d6+ Kf6 Na4 Rh7 Qc7 Be7 b8N Bc4 Nbc6 Bd3 Bc4 Rh4 g8B Rf4 Rf1 Rb8+ Ka5 h1Q Ba6 Qg1 Bb3 Rbb4 Bc2 Rbe4 Rb8 Qg6 Bb4 Rd4 Bb3 Bf8 Ne7 Bh6 Rh1 Bg5 Ng8+ Kg7 Rg1 Kf8 Rg4 Bb5 Rh4 Ned3 Rh6 e1Q Bc2 Ne2 Qa1 Qh1 Bd1 Nf2 Ba3 Qg1 Bb4 Qg7 Re6 Bd3 Ba3 Qg6 Bb4 Qe7 d8N Qee8 d7 Nd6 Ndc6 Nf7 Rb5 Qe7 d8Q+ Qe8 Qa8 Qd8 Nce7 Ke8 Rb8 Qc8 Qcc6+ Kd8 Ba3 Nd7 Qc4 Nc5 N7c6+ Kc7 Qcc3 Qd8 Bb4 Nce4 Be7 Nc5 Bf8
3bQK1n/2R5/4bB1R/1qQ1N1QB/1q3bR1/1bNnP2p/BRr1Q3/k1r2q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 h5 d4 f5 g6 a5 e3 c5 d6 a4 g5 c4 b6 f3 d5 h4 d7 c3 Ke6 f4 Kf7 c2 g7 Kb3 g6 a3 b7 a2 d6 f2 Nf3 Nc6 b8Q+ Qb6 d8Q Nb4 d7 Nd3 Qe7 Qb5 Ne5 f3 Qc5 Be7 Nc3 Bd8 Be2 f1B Kf8 f2 Bh5 Nh6+ g8B+ Nf7 g7 h3 Qe2 Ra3 Bd2 Bg2 Rhc1 f1Q Be1 Bgb7 Bh4 Bd5 Bf6 Ra4 Rab1 a1B Qa8 Ra2 Qac6 Bb6 d8Q Bce6 Qce8 Rh6 Qde7 Nh8 Bgf7 Ba5 g8R Bd8 Rg4 Qf4 Bg8 Qfb4 Qg7 Rh7 Qg5 Re7 Rd1 Rc7 Rbc1 Nf2 Rdd4 Nd3 Bgf7 Bc4 Rd7 Rc8 Rc7 Bcd5 Rcg1 c1Q Rh4 Qe1 Rgg4 Qb1 Qf3 Kc2 Qe2+ Kc1 b3 Rc2 Bg8 Kb2 Bgf7 Qa3 b4 Qf1 Bg8 Bb3 Bgf7 Qc4 b5 Qab4 b6 Qbb5 b7 Qcb4 Na4+ Ka2 b8R Bd4 Nc3+ Ka1 Bhg6 Rc1 Rh6 Rc2 Bh5 Rc1 Nc6 Be5 Rbb7 Bf4 Ne5 Ra8 Rb8 Ra2 Rbb7 Rac2 Rb8 Bf5 Bc4 Be6 Rb6 Ba4 Ba2 Bab3 Rd6 Nf2 Nd1 Rc4 Rd2 Nd3 Rb2 R4c2 Nc3
b6r/k3Q3/1rq1R1KQ/1BqQ1N2/bbBn1B1B/b2P1N2/p3NR2/4nqN1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Ke4 c5 g4 Kc7 b4 Kb6 f4 e5 g5 h5 f6 c4 d6 a4 f7 c3 g6 c2 f5 a3 d7 a2 g7 h3 f6 h2 Kf5 h4 Kg6 h3 Nc3 e4 Nce2 Ka7 b6+ Kb7 b5 Ba3 f8Q e3 f7 Rh5 Qe7 Qe8 d8B+ Nd7 Rb1 Rh7 Rb2 Nh6 g8B Kb8 b7 Ka7 b8N Rh8 Kh5 Bb7 Kg6 Nc5 Nd7 Nf5 Ne5 Nd3 Nef3 Qd7 f8Q Rb8 Be6 Bc6 Qh6 Ne1 Bc4 Nd4 b6+ Ka8 b7+ Ka7 Qeh7 Ba4 Bh4 Qc7 Rb6 Qc5 Re6 Bb4 Qe7 Ba3 Bb2 c1Q Bb5 Q1c3 Bc1 Qc6 Qb3 Qb4 Qd5 Qbc5 Ng3 e2 Nf5 Rbd8 b8N+ Rd7 Na6 Rb7 Nc7 Rb6 Bc4 Ng2 Bb5 e1B Bfe2 Bg3 Bf1 Ne1 Bfc4 Bd6 d3 Bb4 Bf4 Ba3 Ne2 Bb4 Rf1 h1Q Rf2 Qf1 Neg1 h2 Ba6 h1B Nb5+ Ka8 Nc3 Kb8 Qf6 Ka7 Nce2 Ba3 Bab5 Qd7 Qf7 Qcc7 Nh2 Bdb4 Qc5 Ba8 Qd5 Qc5 Nhf3 Qdc7 Qff8 Q7c6 Qe7+
b1nnKQ2/rn1R1R2/1n6/1Q1R3r/2kN4/RNPq1B2/2N2pQN/1q1qb1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 a5 h4 g5 e4+ Kc5 b4+ Kb6 h6 d5+ e6 g4 h7 a4 e5 d3 h5 g3 h6 a3 c3 g2 Qe2 d4 Nf3 g1Q Bg2 a2 Be3 d2 Nh2 d1Q Nd2 f6 Kg6 f5 Kf7 f4 e7 f3 e8R Ra6 e6 Bd7 e7 Qf2 Nb3 Qc8 Rf1 Qde1 Rd8 Bc6 e8R Ra7+ Rd7 Qa6 Re5 Bd6 Ke8 Qd1 Rd5 Qfe1 Bg1 Ba8 Bh1 Be7 Qg2 Nc6 Rf2 Nd8 Rf1 Rc7 Rf2 d3 Rf1+ Kb7 b6 Kc6 b7 d2 Rf2 Kb6 b8N Qd3 b5 Ra7 Nc6 Qef1 Ncd4 Bh4 Nc2 Ne7+ Qg8 Nc8 Qf8 Rg8 h8Q Rg5 h7 Rh5 Qe5 Qb1 h8Q d1N Qe4 Ne3 Qhe5 Qfd1 Rf1 Bf2 Qg4 Be1 Qg2 Rc7 Rf2 Nc4 Qeg5 Kb7 b6 Ka6 Qe5 Ra7 b7 N4b6 Qef5 Na4 b8N+ Kb6 Nc5 Kb5 Nc6 Kc4 N6d4 Nab6 Ncb3 Na4 Re2 f2 Ree7 Nab6 Rf7 Qbc1 Rb1 a1N Rb2 Qb1 Ra2 Rh6 Ra3 Rh5 Nc5 Nb3 Qfg5 Na5 Ncb3 Bc6 Qe5 Nab7 Qc7 Na4 Qa5 Nab6 Qh3 Nc5 Bf3 Ba8 Qg2 Ncb7 Qb5+
q1R1QB2/2b3r1/2rR2Qr/1KNB2N1/5Qn1/1Np1nb2/1N1Q1nqP/1k3rR1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 f4 e5 d4 c5 b6 a5 d6 g5 d5 a4 d7 g3 b7 a3 b5 a2 b6 g2 d6 g4 f6 g3 f5 Qe7 d8N Be6+ Kb5 c4 d7 c3 f7 Rh6 f6 Nc6 b8R Qa3 b7 Bd5 Rc8 Bd6 b8Q Bc7 f8N Nge7 f7 Nf5 Nb7 Ne3 d8Q Ra6 Nh3 g1Q Qf6 g2 Nf4 Qf2 Qa8 g1R Bc4 Rg7 Nd3 Qg2 Nh7 Kd4 f8Q Bf3 Qe6 e4 Qd2 Ne5 Nbc5 N5g4 Ng5 Rc6 Rg1 Qa7 Qb8 Qa8 Qg6 Rf6 Na3 Rc6 Rb1 a1R Qfe8 Ra6 Bd5 Rc6 Rb3 Rb1 Bb2 Rf1 Nb1 Nc4 Qef7 e3 Qe8 e2 Ba3 e1N Nb2+ Nd3 Bb4 Nce3 Ra3 Bd8 Ra7 Ba5 Rd7 Bb6 Rd6 Bc7 Qc1 Ndf2 Nd2 Nc2 Qh8 Ke3 Ndb3+ Ke2 Qf4 Nce3 Qhe8 Ke1 Qa7 Ke2 Qa4 Ke1 Ba3 Ke2 Qad4 Ke1 Nbd3+ Kd1 Bb4 Kc2 Nb2+ Be4 Qd2+ Kb1 Ba3 Qa7 Rdd8 Re6 Na6 Qa8 Bf8 Rd6 Nac5 Rc6 Qge6 Bf3 Rd6 Bd1 Q6f7 Bf3 Qg6+
Q6R/1rb2NK1/2Q1b3/n1n3N1/5qNR/2pbNq2/BRQ2bRP/2Brk2q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 g5 d4 a5 h6 f5 d6 c5 h7 f3 d5 a4 b6 f4 d7 g4 d6 g3 b7 a3 b5 f2 e4+ Kb4 b6 f3 Nh3 c4 Nc3 g2 Ng5 g1Q Qc2 a2 Nd1 Nf6 Ne3 Qc7 d8Q Be6 Qe8 Ra7 Qc6 Qg4 Bd3 f1Q Rg1 f2 Rg2 Qh1 Bf1 Rg8 h8R Qf3 Be2 Qf7 d7 f1B d8N Bc5 Bd3 Qf8 Ndf7 Qh6 Be2 Rd8 Bd1 Bd3 Be2 Na6 b8Q Ng8 b7 Ne7 Qa8 Qh4 b8R+ Rb7 Bf1 Bb6 Be2 Nc5 Bd1 Qhg4 Rh4 Rd6 Rbh8 Bc7 Rb1+ Nb3 Nf5 a1B+ Rb2 Qgf4+ Kf6 Rd5 e5 Rd6 Qd5 Nc6 Kg7 Na5 Qc6 Rd8 Ne3 Rd6 Qe2 Kc3 Bc2 Nc5 Bb3 Bh7 Qf2 Rd1 Ba2 Bd3 Qe2 Bh3 e6 Bhf5 e7 Be6 Rb1 Bb2 e8N Ba1 Ba3 Bb2 Nf6 Bc1 Nf1 Be3 Ng4 Bf2 Qee4 Kc2 Nfe3+ Kd2 Bc1+ Ke1 Rb2 c3 Qg6 Bf1 Qb1 Bd3 Qc2
5n1Q/1R2B3/q4BN1/2qbbr1B/4k3/pb1QNrr1/1P1n1BNR/K4NQb b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 Kf7 d4 Kf6 Kd2 c5 Kc2 a5 g4 e5 b6 h5 d6 e4 g5+ Kg7 d7 a4 f6+ Kg6 f5+ Kf7 b7 h3 d5 e3 d6 e2 Nf3 e1R Be2 h4 Be3 h2 Nbd2 h3 Kb1 c4 Nf1 c3 Nh4 Bg7 Bf2 Rh5 Ng2 Qa5 d8Q Nd7 b8Q Nf8 d7 Qa6 Qg3 Rb8 Qd3 Rb3 Ra2 c2+ Ka1 Bb7 Qa8 Bc6 d8B Bd5 Qb1 c1Q g6+ Ke8 f7+ Kd7 f6 Kd6 Bf3 Rf5 Bh5 Ke5 Ra3 Bh8 g7 Qc5 Qc1 Rc3 Rb3 a3 Rb7 Bb3 Qcd1 Re3 Qe1 Nh6 g8N Ng4 Ne7 Bg7 Qed1 Rg3 Nd5 Ne3 Qc1 Nc4 Nde3 Nd2 Be7 Nd7 f8B Bh8 Bh6 Nf8 f7 Bg7 Bhg5 Bh8 Qdd8 Ke4 Qac8 Be5 Bgf6 Ne6 Qh8 Nf8 Qd8 Rd3 Rg1 h1B Qe1 Nd7 f8N h2 Ng6 Rc3 N2h4 Bf3 Rg2 h1B Rh2 Nf8 Qd6 Bfd1 Nhg2 Bd5 Qd8 B1b3 Ng4+ Rce3 Qd7 Bg8 Qd3+ Kf3 Qc1 Rh3 Ng3 Bgd5 Qdc4 Rd3 Qg1 Rc3 Nf1 Rg3 Qb5 Ke4 Qe2+ Rce3 Qb5 Ref3 N4e3 Rg4 Qe2 Rgg3 Qd3+
R3B1N1/Q1bnQb2/5RQK/1B3rR1/Bn2k2P/3p2qq/qr1BN1Rq/7r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 c4+ Kc5 h4 f5 b4+ Kb6 e4 d5 h6 a5 c5+ Kb7 b6 Kc6 b7 d3 e6 g6 e5 a4 e7 d2 Kg5 d4 e6 Kd5 c6 a3 c7 a2 b5 f4 h7 f3 b6 f2 Bb5 f1Q Ne2 d3 Qe1 d1R Rg1 Nd7 b8Q Ke4 b7 Ra5 Rg2 Ngf6 e8Q Nd5+ e7 Nb4 Qa7 Qg1 b8R Qh2 Qg3 Rh1 Rb6 Bb7 c8B Bd5 Bca6 Bf7 Rf6 Qc8 Bd2 Rg8 h8R Rg7 Kh6 g5 Rc6 g4 Ba4 Rf5 Rg8 Rgg5+ Rg7 Rb5 Rb6 Rgf5 Rf6 Rb8 Qd6 g3 B6b5 Rb7 Qd8 Rb6 e8B Be7 Q6c7 Bd6 Rg5 Bf4 Qc5 Bc7 Qd6 Rb7 Rg1 g2 Nbc3+ Kf3 Nd5 Ke4 Ne7 Rb6 Rac1 a1Q Ng8 Qa2 Rc2 Rb8 Ra1 g1Q Qdb6 Qgg3 Qe7+ Ne5 Rg1 Qce6 Rg2 Nd7 Qg1 Qhh3 Rc6 Qee5 Ra6 Qgh2 Qaf2 Rb6 Ra8 Rb7 Qa7 Rb6 Qf8 Qeg3 Qe7+ Kd5 Rh5 Qgg4 Ba6 Nc6 Rf2 Rb2 B6b5 Nb4 Qg2+ Qgf3 Qg6 Qff4+ Rg5 Qfg3 Qec5+ Ke4 Rg2 Rg1 Qf8 Rh1 Qe7+
3qNn1n/1k1RNb1q/4r2R/3Q4/3B2p1/K2nn1rQ/3Q1BPb/2QR1NqR b - - 0 1 illegal: No possible last move
1R1nK1NB/5Q2/2Qr1N2/Nqr2bQ1/rQ3p2/1Br2qbP/n4Bb1/kR5B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 e4 g5 d6 f5 h3 c5 d5 f3 b6 f2 b7 c4 h6 g4 d7 c3 Ke6 f4 Kf7 c2 d6 Kb3 h7 g3 e5 a4 e6 g2 e7 a3 e8B a2 Bc4+ Ka4 b4 f1B b5 Be7 b6 Ra5 Qd5 Bf6 Nf3 g1Q Ng5 Ra7 Nc3+ Kb4 Nce4 Qd4 Be3 Ka3 Rb1 a1R Bb3 c1R Rb2 Bg7 Nf6 Ra8 Nge4 Ra4 Bf2 Nc6 b8N Qb4 b7 Nge7 Ng8 Bg2 Nef6 Rc5 Rhb1 Qb5 Qf3 Qda5 d8Q Nd5 d7 Nc3 Qc7 Qa8 d8Q Na2 Bd7 Rd4 Ke8 Rd6 Qh5 Bh6 Qf7 Bg5 Qde7 Nd8 Nc6 Rc3 b8Q Bh4 Na5 Qf3 Qc6 Bg3 Bde6 Rc5 Bed5 Bf5 Qe5 Bg4 Qg5 Bf5 Re1 Rac1 Re7 R1c4 Rb7 Ra4 Be4 Rdd5 Qd6 Rd2 Qdf8 Rd6 Rb8 Rc3 Ne7 Rg8 h8B Rg6 Neg8 Rg7 Qc4 Rc7 Qcf7 Rc8 Qcd7 R8c4 Qc6 Rc5 Q8g7 Rcd5 Ng4 Bh1 Qd4 Qfe2 N4f6 Rdc5 Rd2 Qg4 Bg2 Qf3 Qe4 Rc2 Re2 Kb2 Qb4 Ka1 Rd2 R2c3 Rb2 Qd1 Bf1 Bd5 Bg2 Qh5 Bh1 Bg2 Ke7 Qg4 Ke8 Qf3 Rb1+
1NN1BRq1/Bb1qn3/3N1RBn/6bK/4PR2/2qrNr2/1knR1Q1p/Q5q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 d4 h5 b4 c5 e4 a5 g4 f5 g6 a4 g5 c4 b6 h4 b7 c3 b5 c2 b6 h3 g7 a3 g6 h2 Nh3 a2 Na3 Rh7 Bb5 Na6 b8N Ne7 g8N Qc7 g7 Rh5 b7 Rh4 Ng5 Nc5 Rf1 Nd7 Be3 c1Q Nc2 Nf6 Be8 Qd7 Bg6 Ng4 Nf7+ Kc7 d6+ Kb6 d5+ Kb5 Bf2 Ka4 Ba7 Kb3 Ne3+ Kb2 Qd2+ Qc2 Qf2 Nh6 Rad1 a1N Rd2 Qc6 d7 Rh3+ Qg3 Qa4 d8R Qd7 Rdf2 Qd2 d6 Nc2 Re8 Qc3 Rd8 Qa4 d7 Qad4 Re8 Qa4 d8R Qd7 Bc5 Ra3 Ba7 Rb3 Rd2 Ra3 Rd6 Rb3 Rf6 Ra3 Nd6 Rb3 Kf2 f3 Qe5 f4 Qc5 Nd5 Ne7 Rg3 g8B Bg7 Nec6 Ne7 B8f7 Bh8 Rf8 Bg7 Rf5 Bf6 Be8 Bg5 R5f6 Ra3 Na6 Rh3 b8Q+ Bb7 Qa8 Rg3 Nab8 Rb3 Rd1 Rh3 Rd2 Rg3 Kf1 f2 Ke2 Rf3 Qd4 Nc8 Ne7 Ra3 N7f5 Ne7 Nc8 Rb3 Nfd6 Ra3 Ng2 Rd3 Qe3 Rb3 Kf3 f1Q+ Rf2 Qb1 Rd2 Qa2 Rf2 Ra3 Rd2 Qg8 Rf2 Nhf5 Kg4 f3 Kh5 Nh6 Qd2 Rb3 Ne3 Ra3 Rf1 f2 Rf4 Rb3 R8f6 Ra3 Rd1 f1Q Qf2 Qg1 Rd2 Ra2 Bef7 Ra5 Rf8 Rb5 Be8 Rf5 Rg4 Rf3 Rgf4 Ba6 Qd5 Bb7 Qe5 Bh4 Qa5 Bg5 Qa1+
2Rq1qN1/n1RQRBQK/5B1b/nb5B/2qp2rQ/8/2P4R/kNBbb1r1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 h5 Ke4 a5 g4 e5 b4 h4 f4 d6 f6 Ke6 f7 d3 g6 a4 f5+ Kf6 b6 d2 g7 h3 g5+ Ke7 f6+ Ke6 b5 h2 b7 a3 b6 a2 g6 Qe8 Be2 Ne7 g8B Bd7 g7 Nbc6 b8R Na5 b7 Bb5 Nf3 Qd8 Nh4 Nc8 Bh5 Na7 Rc8 Rh6 b8R Rg6 Rc5 Rg1 Rbc8 Rb8 Qe1 d1B Nf5 Rb7 R5c7 d5+ Ke3 d4+ Ke4 Rb8 Nh6 Kd6 Kf5 Kd5 Re7 e4 Qh4 e3 Rec7 e2 Re7 Re1 Kg6 Rg1+ Kh7 e1B Rec7 Bfb4 Re7 Bbd2 Rec7 Rb6 f8B+ Re6 f7 Re4 Be7 Reg4 Bf6 Bg5 Re7 Qf8 Ra8 Kc4 Rc8+ Kb4 Rec7 Qd8 f8Q+ Ka4 Nf5 Bh6 Ne7 Kb4 Bc4 Ka4 g8Q Kb4 Nd2 Kc3 Qfg7 Qf8 Rb1 a1Q Qd5 Qa2 Qd7 Qa4 Bcf7+ Qc4 Ng8 Qd8 Nf1 Qf8 Be3 Qd8 Nd2 Qf8 Ra1 Kb2 Nb1 Qd8 Ra3 Qf8 Rb3+ Ka1 Bc1 R1g3 Rf1 h1Q Re3 Qa8 Rh1 Rg1 Re7 Qad5 Rh2 Qd6 Qe6 Qdd8 Qd7
N2q2r1/1B2rNBb/R4R1Q/1QQn2N1/2p1r3/2P2k1n/1KRqn2b/Q2rR3 b - - 0 1 illegal: No possible last move
r1k1b2b/5b2/1Q1Q1qR1/N1Bn1NNB/2pP1Rn1/2qN1KQ1/2R5/R1rr3r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 f4 h5 g4 c5 b4 e5 f6 a5 b6 h3 d6 a4 g5 c4 g6 a3 g7 e4 b5 h4 f7 e3 b7 h2 b6 a2 f5 h3 f6 Qe7 Nc3 Qe4 Na4 Qe5 Nc5+ Kd8 d7 Bd6 f8R+ Qe8 f7 Rh7 Ba3 Rh8 Kf3 e2 Nd3 e1Q Bc5 Be5 Ne2 Na6 b8N Bc3 b7 Nb4 Nd4 Nf6 g8R Nbd5 Rg6 Ng4 Be2 Rh6 Rf1 h1R Nf5 h2 Rf2 Bh8 Nc6+ Kc7 d8N Qe5 Qb1 Be6 Na5 Qf6 b8Q+ Kd7 Q8b6 Kc8 Q1b3 Qc1 Qc3 Rd1 Qa3 Bd7 Ne6+ Be8 Ng5 Qcb2 Qc3 Qa3 Qe5 Qc3 Qg3 Rh5 Rfg8 Rh4 f8Q h1B+ Rg2 Rh2 Qfd6 Rh4 Rf8 Rh3 Rc1 a1R Rc2 Rab1 Ra2 Rbc1 Ra1 Nh2+ Kf2 Rh6 Bh5 Ng4+ Ke2 Nde3 Rf2 Bd5 Rf4 Bf7 Kf3 Be6 Rf7 Nd5 Re7 B6f7 Re2 Qc2 Nf2 Qcb2 d4 Qc3+ Nd3 Rh7 Rc2 Rh6 Rg8 Rh7 Bg6 Rh4 Bh5 Rhh1 Rg6
R1r5/QBR3Nq/b2n1K1N/B1R3nN/PqN2k2/r1r3pQ/2nn4/2B3bB b - - 0 1 illegal: No possible last move
2bn1QqB/2Nq4/1r5R/2NR1R1p/NQ3nn1/1bBnb1N1/1r1Bk2P/1R5K b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g6 f6 Qd7 f5 Nc6 Bd3 Qd8 f7+ Kd7 f6 Nb8 Bf5+ gxf5 Kf2 Kd6 d4 a5 b4 c5 g4 h5 Kg2 e5 b6 c4 b5 a4 b7 e4 g5 f4 b6 e3 g6 a3 g7 e2 Qa4 e1Q Qb4+ Kd7 d6 Ke6 d7 Kd5 Bd2 Ke4 d5 Kd3 d6 c3 Ne2 a2 Rf1 c2 Kh1 c1N Nbc3 f3 Ng3 f2 Na4 Qe6 Rb1 Nc6 b8B a1N b7 Nh6 g8R Ra6 Rg6 Ng4 Rh6 Nab3 Bc3 Qc7 d8B Ne2 d7 Bc5 f8N Qg8 f7 Rb6 Ne6 Nbc1 f8Q Nf4 Bg5 Be3 d8R+ Qd7 Bbe5 Rh7 b8N Re7 Ne4 Ke2 Bh8 Ncd3 Nc7 Re5 Nba6 Reb5 Qd4 Rb2 Qdb4 Qdf7 Rdd6 Nd8 N6c5 Qfh7 Rd5 Qd7 Rfd1 f1B Ng3+ Kf2 Rf5 Be2 Rdc1 Bd1 Rc2+ Kf3 Rd2 Bb3 Rdd1 Nc1 Rdd5 Nd3 Bd2 Kf2 Bgf6 Kf3 Bfc3 Kf2 Nge4+ Ke2 Ng3+
1N4qr/3Q1B1R/1B2NrQb/Q1Bb1RP1/r2RR3/2k1nbnK/2pr4/4Q1q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 Kg2 a5 d4 e5 g5 e4 b6 a4 b5 e3 b7 a3 f6 c4 f5 c3 b6 a2 f7 e2 f6 e1R Bc4 c2 Nf3 Qc7 Na3 Rf1 Qe1 Nc6 b8R Nce7 b7 Nh6 Be3 Neg8 Ne5 Ne7 Rd1 a1R Nc6 Rf5 Nb5+ Kd7 d6 R8a4 d5 Qd8 Rd4 Ng4 Nc7 Rd1 Kh3 Rd2 Ne6 Bh6 f8B Rf4 f7 Nf5 Re4 Ng3 Bb6 Ne3 Ra8 Rf1 b8Q Rf6 Be7 Bb7 f8R Qe8 Qa7 Qb8 Qa6 Qe8 Rf7 Qg8 Raf8 Ba8 Rh7 Bb7 Rh2 Ba8 Rd4 Bb7 Re2 Ba8 Kh2 h3 Ba2 h4 Qd3 Bb7 Qg6 Ba6 Rff7 Bd3 Bc4 Be4 Ba2 Bf3 Nb8+ Kc8 d7+ Kb7 d6 Bd5 Nc6 Ka6 d8Q Kb5 Nb8 Bf3 Bc4+ Kb4 d7+ Kc3 Bec5 Bd5 Qc7 Bf3 d8Q Bd5 Qa7 Bf3 Kg1 h2+ Kf2 h1B Qdd7 h3 Qa5+ Rb4 Rf8 Bd5+ Kg1 Bhf3 Kf2 h2 Ba2 Rf4 Rf5 h1Q Bc4 Qh3 Kg1 Qf1+ Kh2 Qf2+ Kh3 Qg1 Re5 Rf6 Rf5 Ng4 Ree4 Ne3 Nf4 Bc6 Bf7 Bd5 Qa2 Ra4 Ne6 Rc4 Qa8 Ra4 Qa5+
2r2QN1/1Q2BK2/1bR1n3/Q2qbQpn/1rb4R/3q2k1/Pr3b1B/R1NB1B2 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Qf3 Rh3 d6 Kg5 f6 e5 f7 c5 a6 b5 d7 Kh4 Ke4 Qe8 Kf5 Be7 Kg6 c4 d8B Qd7 d4 b4 d5 e4 a7 c3 d6 b3 Nd2 g3 Ne2 Qb5 d7 b2 f8R b1R Rf6 e3 Ne4 Bd6 Be7 c2 d8Q g2 Qa5 g1B Ba3 c1Q Bc5 Qc2 Nc1 e2 Qd3 e1B f4 Rf3 f5 Kg4 h4 Rb4 h5 Qg2 h6 Nc6 Rh3 Rb8 a8B Rb2 Qd5 Bdg3 h7 Rf4 h8Q Nd8 Qh7 Ba6 Rh4+ Kf3 Bc6 Qd3 Ba4 Rc8 Qb7 Be3 Rd6 Ne6 Rc6 Nf6 Bb6 Nh5 f6 Bc3 f7 Be5 f8Q Bb5 Qfg8 Rg4+ Kf7 g5 Nf6 Rgb4 Qf8 Bc4 Ng8 Be1 Bd1+ Kg3 Qf5 Qgd5 Bbd8 Ba7 Bc5 Bb6 Bg1 Bef2 Bf6 Q5f3 Be7 Qfd5 Bh2+
2B1n2Q/1R2r3/2QN1R2/3Bn1pR/1n1k2bn/1Q2B1qb/PNq1r1Qb/2B2K2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h4 Kd7 d4 c5 e4 b5 d6 Ke6 d7 g5 h6 f5 d5+ Ke7 h7 c4 d6+ Ke6 h5 f4 h6 c3 Ba3 b3 Nf3 b2 Nfd2 c2 Nc4 c1Q Nbd2 b1B Bg2 b4 O-O Qa5 d8B b3 d7 f3 Bb6 b2 d8Q Bd6 Be3 Qcc3 Qc7 Qc1 Qb7 Na6 Qe2 Nf6 Qb6 Bc2 Rb1 Bd1 Qb4 Bb8 Qa4 Rd8 h8R Qc2 h7 Qc7 Qb4 Ra7 Qb5 Kf7 e6+ Kg7 e7 Bh3 e8B Qf4 Ra1 b1N Bc1 Na3 e5 Rd6 Ne4 Rd2 e6 Qc7 Ne5 Nc4 e7 Qd6 Bf7 Rd7 e8Q Re7 Qc8 Ne8 Nd3 Qf4 Qd5 Qh4 Rb1 Bh2+ Kh1 Qe1 Nd6 Kf6 Be6 Qg3 Rb7 Nb4 Qf2 Be2 Nb2 Bd1 Qd3 Ke5 Qc6 Be2 Qg1 Bd1 Bc8 f2 Ba7 Bh5 Qb3 Re2 Bd5 Bf3+ Qg2 Bfg4 Re1 f1N Bae3 Nfd2 Rf1 Nf3 Rf2 Nh4 Rf4 Qf3 Rf6 Bg3 Kg1 Qf4 Bf3 Bh2+ Kf1 Qg3 Bd5 Nb6 Rh6 Nd7 Rh5 Bf5 Rf8 Bfg4 Bf4+ Kd4 h8Q+ Ne5 Rf6 Na6 Bfd2 Nb4 Be3+
nBbb1r1k/1B6/b1q3N1/nnB1Pqp1/R3Nn1Q/4NBKQ/1Rr5/N2Q4 b - - 0 1 illegal: No possible last move
b2BN1R1/k2NQRr1/4nn1b/4pK1P/3N4/4Q1QB/1nr1nQ2/b2qBB1q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 Kd3 a5 Ke4 d3 c4 a4 f4 a3 h4 d2 b4 g4 h6 e6 b6 d6 h7 Kd7 b7 Kc6 h5 Kb6 c5+ Ka7 f6 a2 f5 g3 b5 g2 f7 Qe8 f6 Na6 b8N Qd8 c6 Qd7 c7 Nh6 b6+ Kb7 Qe2 d1N Bg5 Qd8 Qe3 Qe7 Nc3 Nb2 Nf3 g1N Nb5 Bg7 f8Q Ng4 f7 Bh6 Nd7 Ne2 Nfd4 Rg8 h8B Rg7 Rg1 Qd8 Rb1 a1B Qe7 Qg8 f8Q d5+ Kf3 Nc5 Nd6+ Ka6 b7 Nf6 b8Q Bb7 c8B Qh7 Re1 Qb1 Ne8 Qd1 Qbf4 Ka7 Qg3 e5 Bh4 Qb1 Rc1 Ne6 Rc7 Ne4 Qff4 Nf6 Qgf2 Qe1 Rg5 Qd1 Q4g3 Rb8 Rc3 Ba8 Rc7+ Rb7 Rg6 Ng8 Kg4 Nf6+ Kf5 Qc1 Rc5 Rc7 Rb5 Rc2 Rb3 Rh7 Rg8 Rg7 Rb8 Qb1 Rf8 Qc1 Rf7 Qd1 Bh3 Qh1 Ba6 N2f4 Baf1 Ne2 Nf3+ d4 Rd8 Rc5 Rb8 d3 Nd4 d2 Rd8 d1Q Rb8 Ng8 Rc8 Rh7 B8f6 Rg7 Nc7 Ng1 Qe8 Rc2 Qgh2 Nc4 Qfe2 Nb6 Be1 Rg2 Q2f2 Rg7 Qhg3 Na4 Qf8 Nb2 Re8 Rg6 Bd8 Nf6 Qe7 Rg7 Rg8 Ne2 Ne8
1N1Q1N1K/Q1n5/4qR1b/1kBP1b2/1N1r1R1N/3r4/4qqpb/QRnB2qR b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 c5 Kf4 g5+ Ke5 a5 h4 e6 f4 a4 d4 a3 b4 g3 h5 a2 h6 g4 b6 c4 h7 g2 b7 c3 b5 g3 b6 c2 f6 Ra6 d6 Kc6 d7 Qe7 d8Q Bh6 f7 Nf6 f8R Ra4 f5 Nh5 f6 Na6 b8Q Nc7 f7 Nf4 b7 Ne2 d5+ Kb5 Qa7 Rd4 Be3 c1B Nf3 g1Q b8N g2 Nh4 Qf2 Qe1 Rg8 h8R Rg3 Rhg8 Qd7 Rg4 Ba3 Rf4 Bd6+ Kf6 e5 Qc3 e4 Qc1 Qh3 Qca3 Bf5 Nc3+ Kc4 Re1 a1Q Na2 Kb5 Nb4 Rf3 Rb1 Rg3 Bc1 Rgd3 Be3 Nc1 Be2 Qa2 Bd1 Qae2 Qb2 Qg1 Bf2 e3 Qba1 Qhf3 Re4 Bh2 Rf4 Bg5+ Kg7 Bh6+ Kg8 Qe4 Kh8 Qe6 Be1 Qef2 Bd2 e2 Be3 Rc4 Bc5 e1Q Re8 Qfe2 f8N Rcd4 Re7 Q2f2 Rf7 Q1e2 Rf6
N4QKB/2Bb2b1/nR1rBbR1/2P2q2/1q2rk2/1B1b2pN/4R2N/n1R2Q1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 a5 b4 f5 e4 d5 h4 a4 c4 a3 c5 d3 b6 d2 b5 g6 h6 a2 h5 d4 b7 d3 h7 Nh6 b6 Ra3 Bh3 Ra4 Nc3 Nf7 h6 Qd6 Rh2 Qd8 Nf3 Bd7 Re2 Ra5 Nh2 Rg8 h8B Qc8 h7 Ra4 Qf1 Rg7 Nd1 Nh6 Kg5 Ng4 Nf2 d1Q Bf4 d2 Rc1 Na6 b8Q a1B b7 Ne3 Kh6 g5 Qa8 g4 b8R Rd4 Rb6+ Rd6 Bg3 f4 Qb8 Kf7+ e6+ Kf6 e7 f3 e8B Qb3 e5+ Kf5+ e6 d1R Bf7 Bf6 e7 Qb4 e8N Nc2 Nc7 Na1 Na8 Re1 Bb3 Re7+ Bg7 Red1 h8R Re4 Kh7 Kg5 Be5 g3 Rg8 Re1 Bh8+ B8g7 Bhe6 Qf8 Qg2 Rh1 Qf1 Qf7 Rf8 Qg6+ Kg8 Qf5 Rf7 Nc7 Qf8 Na6 Nfg4 f2 Re7 Rd5 Bc7 Rd6 Rf7 Kf4 Re7 Bb2 Rf7 Bbe5 Rf6 Bc3 Rg6 Bcf6 Qe1 f1B Nf2 Bh3 Qf1 Bg4 Rd2 Be2 Ra2 Beb5 Re2 Bd3 Nh3+
2Qbn1B1/1b2nNBQ/2kq1RNr/n1Pp2r1/r1R2QB1/Bq1Q4/3Kn3/3N4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 a5 b4 h5 f4 e5 g4 d5 g6 Kd7 c5 d3 g5 h4 f6 a4 g7 a3 f7 h3 f5 e4 f6 e3 b6 a2 b7 h2 g6 e2 b5 Qa5+ Nc3 Rh5 b6 Qb4 Ba3 Rg5 Rc1 a1N Nf3 Kc6 Bh3 Be7 f8N Nd7 b8Q Qc4 b7 Rf5 f7 Nb3 Qf4 Bd8 b8Q Ra4 Ng5 Bb7 Bg4 Ne7 g8Q Na5 g7 Nf6 Kd2 Qb3 Ng6 Ne8 Rf1 h1R f8B Rh6 Nf7 Re5 Qh7 Rg5 Ke3 d2 g8B e1Q+ Kd3 Qb4 Bg7 Qe5 Qc8+ Qc7 Qb3 d1N Kd2 Qb5 Qbc4 Qb1 Qd3 Qb3 Ne4 Nc3 Nf2 Ne2 Rc4 Kb5 Nd1 Qd6 Qfe3 Bc7 Rf6 Bd8 Qb8 Kc6 Qf4 Rh3 Qa8 Rh6 Qc8+
2qb2RB/6n1/6QK/1prqBN2/R1n5/Rk2BB1b/1r1QNPN1/Rq4bb b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 b5 d4+ Kd6 h4 c5 a4 e5+ f6 e4 a5 e3 h6 b3 a6 b2 h5 c4 h7 c3 h6 c2 a7 g6 Ra2 e2 Be3 e1Q Qh5 c1Q Be2 Qe8 f7 Nf6 Nh3 Qcd1 Nc3 b1B Nf4 Nc6 Bf3 Bd3 Nce2 Na5 Ng2 Be7 f8R Be4 Rg8 Bh3 Ra4 Rd8 a8R Nc4 Ra2 Qd7 R8a4 Qc8 Rf1 Qb4 Rg1 Qd3 Rga1 Qbb1 Qg4 Rd7 Qf5 Ne8+ Qf6+ Kc7 d6+ Kb6 d5+ Qd4 Bh5 Kc5 Bf3 Rd8 d7 Ng7 d6 Re8 d8B Bb7 Ba5 Bd8 d7 Re7 Bc7 Re4 Ra5 Kb4 Be5 Qd5 Ra8 Kb3 R8a4 Ba5 d8Q Bc6 Qe8 Bd8 Qd7 Rd4 Qd6 Rd2 Qd7 Rb2 Qd6 Qc5 Qd2 Bb7 Rf8 Rg8 h8B Qd5 h7 Bc6 Kh6 g5 Qd6 g4 Qg6 g3 Re8 Ne6 Rf8 Rg7 Rg8 Rc7 Bhf6 Bb7 h8N Ng7 Nf7 Rc5 Nd6 Ba8 Nf5 Bc6 Bc3 Ba8 Bfe5 Bb7 Ne1 g2 Bcd4 g1B Ng2 Ne6 Bh8 Ng7 Be5 Qc1 Bh5 Qdc6 Ngh4 Qb1 Bg4 Q6d7 Bh5 Bbg2 Bf3 Bh1 Ng2 Qd5 R2a3+
R2B2Nk/1bb5/1N1Q4/1p3Q1P/1K2nRq1/1N1r3b/1bB2n1B/1BNrQnq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 c5 d4 g5 Kd2 Kg7 a4 e5 d6 b5 d7 b3 Kc3 c4 d5 g4 f6+ Kh7 a5 b2 d6 g3 h6 g2 a6 e4 h5 e3 f5 e2 a7 e1B+ Nd2 b1B f7 Bh4 f6 Bg6 Bd3 Qe7 d8B Bg5 d7 Bf4 Rh4 Be4 Nb3 Bc7 Bc2 Bg7 f8Q Nc6 Ne2 g1Q Qe1 Nb4 Bf4 Nd3 Nec1 Nf2 Bh2 Qe6 Kb4 c3 f7 Nf6 Rf4 Qeg4 Ra2 Rb8 a8B Rb7 Bb1 c2 Qc5 Rg8 f8N+ Kh8 h7 Bg2 Ra6 Bh3 Qf5 N6e4 Ra1 Rb6 Bd5 Bf6 Ra8 Bb2 Bf7 Rd6 Bg6 Kg7 h8N Rd3 Bh7 Bb7 Nf7 Rd1 Nh6 Kh8 Bg6 Rg7 Ng8 Rf7 Na2 c1N Bc2 Ne2 Nac1 Rh7 Bb1 Q1g2 Qe5+ Nf6 Be7 Ng3 d8Q Qg1 Nd7 Nf1 Bgc2 Rh6 Qf5 N6e4 Nb6 Rhd6 Qdd7 R6d2 Bd8 Rd3 Qd6
N3rRr1/1b4B1/R1B2bq1/PB2qNBQ/r1n3qr/2kR3Q/p1n3Q1/5R1K b - - 0 1 illegal: No possible last move, all moves rejected
q3kbQn/n1QRq3/NK1B2BP/1Np3N1/b2N2Q1/q4BrQ/8/r1b2Rq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 d4 f5 h4 a5 b4 g4 e4 a4 e5 a3 d6 f3 Ke3 c6 d5 f2 Kd4 f4 Kc5 a2 b6 f3 b7 g3 h6 g2 h5 Ra4 b5 Bg4 b6 Qh4 e6 Bf5 e7 Ra3 d7+ Kf7 d8N+ Ke8 h7 Ra6 d6 Qg4 Ba3 Bd3 Nf7 Ra7 Be2 f1Q Nc3 f2 Ng5 Qa4 Nb5 Qa6 N1f3 g1B Nfd4 Bc2 Bf3 Qe2 h6 Bh2 Rf1 Ba4 Qb3 Bf4 Rad1 a1Q Qe6 Bc1 Qg4 Qe6 Rd2 Kd7 e8B+ Kd8 Bh5 Ne7 d7 Rg8 h8Q Qb2 Bb4 Qa3 Bg6 Rg7 Qg8 Qee3 Rh1 f1Q Qh3 Qfe2 Rf1 Qg1 Qge6 Qee3 Qeg4 Qe5+ Kc4 Ra8 Bd6 c5 Rdd1 Nbc6 b8N Na7 b7 Qc6 Na6 Qc8 b8Q Rg8 Bh5 Ng6 Rd3 Nh8 Bg6 Qe7 Qb7 Qb8 Kd5 Nc8 Kc6 Na7+ Kb6 Nc6 Bf4 Ra7 Bd6 Qa8 Nb4 Ra5 Na6 Na7 Qd5 Rg7 Qg8 Rf7 Bb7 Rf3 Rd2 Rg3 Bf3 Qa1 Rdd1 Qa3 Ne2 Bc2 Be5 Qc3 Rd5 Ra1 Ned4 Qa3 Bb8 Qh7 Bf4 Ke7 Be5 Ba4 Bb8 Kf6 d8Q+ Qe7 Qd6+ Qe6 Qc6 Ke7 Rd8 Qf7 Rd7+ Ke8 Bd6 Qb2 Bc2 Qa3 Qc7 Qe7 Bg6+
kq1RR3/b6R/b1Q1Q1rp/1B4b1/NR2KNNr/r1BP4/rn1Q4/Q1q1n3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 c5 f4 Kc7 b4 Kb7 g4 a5 b6 e5 g5 a4 b5 c4 d6 a3 g6 c3 f6 h3 f7 a2 f5 e4 f6 h2 d7 c2 g7 Ra6 Ne2 Ra7 Nf4 Qe8 d8R Bd6 f8Q Nd7 f7 Ne5 Bb2 c1Q Bc3 Nf3 Qe7+ Ka8 f8R Bb8 Qe6 Ne7 g8N Ng6 Nh6 Rg8 Ng4 Ra3 Bd3 Ne1 b7+ Ka7 Kd4 e3 Ke4 e2 Bc4 Rg7 d3 Ne5 Qd2 Rg6 Rg8 Qf8 Rh8 Qd6 Rhe8 Qf8 Bd5 Qd6 Bc6 Nc4 Bd7 Nb2 b6+ Ka6 Ba4 Ba7 b8Q h6 b7 Qb6 Qbe5 Qd6 Rg1 h1R b8Q Rh4 Qa8 Qb6 Bc6 Qb8 Q5f6 Kb6 Bb5+ Kc7 Qad5 Ba6 Qc5+ Kb7 Rh1 Rh5 Rh4 Ka8 Qh8 Nf3 Qhf6 e1B Qfe5 Bg3 Qcc4 Ne1 Qcc6+ Bb7 Qd4 Bf2 Qdf6 Bfe3 Ne2 Na4 Bb2 Qc8 Nf2 Bb8 Nbc3 Bg5 Kf5 Rb3 Rb4 Rh4 Ng4 Qc7 Ke4 Qb6 Rbd4 Qa7 R4d7 Ra3 Rb1 a1R Rh7 R1a2 Nf4 Qb6 Ba1 Qc7 Rb4 Qc8 Qb3 Ba7 Qfe6 Qb8 Qb1 Nb6 Na4 Nc4 Bc3 Nb2 Nd5 Bb6 Qa1 Ba7 Qcc8 Ba6 Nf4 Rb3 Qcc4 Rba3 Qcc6+
qn4Qq/1Q2n3/BK3PqB/R2bNbq1/3R4/BN5k/2B1Qrp1/N2Qbr2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 d5+ Kc5 a5 c4 g5 f4 g4 h4 d3 b4 g3 h6 a4 b6 d2 b5 a3 h5 d4 b7 a2 b6 d3 h7 g2 h6 Qd7 Rh4 Qe8 Ba3 Qd8 Ne2 Be6 Nd4 Bg7 Nb3 Nc6 b8N Ra4 b7 Bd5 Kb5 e5 c5 Qd6 Kb6 e4 Be2 e3 Nd7+ Kf7 b8Q Nge7 f6 Kg6 f5+ Kg5 f7 Rf4 f8Q Rf1 Qb7 Nb8+ c6 Bc3 Ne5 Qg6 Qe8 Rf8 h8Q Bb4 Bg4 e2 h7 e1Q Qg8 Qe4 h8B Kf4 Bh5+ Kg3 Bg7 Qf3 Rf4 Kh3 Bh6 Qfg4 Rd4 Q4g5 Bf3 Rf7 Be4 Rf6 Qe1 d1Q N1d2 Qdh5 Qed7 Rf7 Qe2 Qhh4 Qd6 Rf2 c7 Rf8 Rg1 a1Q c8B Qa2 Na1 Rf7 Nb1 d2 Bc2 d1B Nd2 Rf8 Ndb3 Be1 Bc1 Qa8 Ba3 Rd8 f6+ Rd7 Qe4 Bg4 Qe2 Bf5 Rf1 Bd2 Rd1 Be1 Ra4 Rc7 Ra5 Rc4 Qdd8 Rcf4 Rd4 Qhh5 Bd7 Rf1 Bb5 R4f2 Ba6 Qhh4 Qd1 Qhh5 Qde8 Qhh4 Qb5 Qhh5 Qbe2 Qhh4 Bg7 Qh8 Bh6
b1q1Nk2/1R6/rb1QRPrN/2B2qn1/1QBn2Q1/3b3p/1KB1r1Q1/1R4Bb b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 g4 d5 f4 e5 b4 h5 c4 d3 Kc3 e4 g6 e3 g7 d4+ Kb2 d2 c5 a4 g5 d3 b6 h4 b7 h3 g6 e2 b5 e1R c6 Rh7 b6 Bb4 c7 Qe7 Na3 Ra6 Ne2 Bd7 c8B Qd8 Rb1 Bc5 Nd4 Bc6 Nab5 Qd7 Nd6+ Ke7 Ne8 Nh6 g8Q Ra8 g7 Ra6 Qc4 Re4 g8Q Nf7 Qb4 Rh6 Qh5 d1B Be3 d2 Bc4 Qd8 Re1 Bf3 Bg1 Bh1 Qg2 d1B Qhg4 Be2 Bd7 Bd5 Bc8 Nc6 b8Q Re3 b7 Ng5 Qd6+ Kf7 b8R Rg6 Bb7 Qc8 Ba8 Bf1 Bb7 Bb6 Re2 Rd3 Re6 Re3 Ba8 Na7 Bc6 Nb5 Bb7 Bf3 Be4 Kg8 Bed3 Ba8 Rb7 Be2 f6 Bf1 f5 Re1 Rf7 Be2 Rb7 a3+ Kc2 a2 f7+ Kh7 f8B+ Kg8 f6 Bf1 Nf5 Nd4+ Kc3 Re4 Qe7 a1Q+ Rb2 Qa2 Rb1 Qa5 Bc2 Bd3 Kb2 Re2 Qd7 Qd5 Bc5 Qf3 Qd6 Qf2 Ree7+ Kf8 Nh6 Qff5 Re6#
K6n/3R2Bq/1Q1QBpn1/R6r/Bq1NQ3/Q1N4B/3q2Pb/Nqr2nkb b - - 0 1 illegal: No proof kernel
k7/1N1RNK2/B3PRQr/Nqr1Nq2/1Bq4b/3Q2q1/1n3pRn/r1Rb3Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kf5 g5 d4 c4 h4 f3 b4 f6 Kg6 Kc7 e4 Kb7 e5 f5 d6 a4 e6 a3 b6 a2 b5 g4 d7 c3 d5 c2 d6 g3 h6 f2 h7 f4 h5 g2 h6 f3 Qd3 Nf6 Na3 Be7 Bd2 c1R Nc4 Rg8+ Kf7 Bf8 h8R Ng4 h7 Be7 Bb4 Rg5 Rf8 Rh5 h8Q Bh4 Rh2 Qg5 d8R Rh6 d7 Nc6 Na5+ Kb8 b7 Qf5+ Qf6 Rc5 Rc1 a1Q Be2 Ka7 b8N Bb7 Bf1 Qc3 Be2 Qh5+ Qfg6 Qc4 Bf1 Ne3 Be2 Nd1 Bf1 Nd4 Nbc6+ Kb6 Ne7 Ka7 Be2 Nb2 Bf1 Bd5 Be2 f1Q b6+ Ka6 b7 f2 b8Q Bf3 Qg3 Ka7 Qh3 Bg4 Nf3 g1Q Ne5 Nf3 Rg2 Qf5+ Kg7 Qb5 Qh1 Nh2 Rf6 Bf3 Kf7 Bh5 Bd1 Be2 Bb3 Bd1 Bd5 Qe2 Bb7 Qee4 Ba6 Qd5 Rf8 Qdc4 d8N Kb8 Rg8 Ra7 Rg7 Ka8 Rg4+ Qg2 Ndb7 Qg1 Rd4 Qg3 Rd7 Qe3 Qgg1 Ng4 Nac6 Qa4 Bb5 Nh2 Rg3 Ra5 Ba6 Qab5 Rg6 Ra3 Nca5 Ra1 Qg4 Qef4 Qh5 Qf3 Rg2 Qg3 Qg6
Q2n1K2/1R1bB3/RRBbP2N/Qn5r/2n1bb1k/N1Rr1N2/3qqp2/5B1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 a5 Ke4 f5+ Ke5 h5 g4 c5 d4 a4 b4 f3 e4 h4 b6 h3 b5 f2 d6+ Kf7 b7 Kg6 d5 f4 d7 f3 Ke6 c4 b6 c3 e5 c2 d6 a3 Qd5 h2 Nh3 a2 Na3 Nf6 Qa5 Na6 b8R Be7 b7 Kh7 Kf7 Qc7 d8N Bf5 d7 Nc5 Bb2 c1Q g6+ Kh6 g5+ Kh5 g7 Qc2 g8B Bd6 g6 Qd2 g7 Nfe4 Ng5 Ne6 Bc3 Qc8 Bb4 Nc3 Rc1 Nb5 Rc3 a1B Rg1 Bc7 Be7 h1B Bh7 Bh3 g8B Kh4 Be4 Bd6 Bc6 Rh5 Bh7 Bb2 Bhe4 Bc1 Ke8 Qc7 Ndf7 Nd8 Kf8 Qb6 Rg2 Qbe3 Nh6 Qee2 Rh2 Ra6 Ra8 Ra7 b8R Rc7 Rb7 Rc8 Bg2 f1N Ra6 Ne3 Bf1 f2 Rg2 Nc4 e6 Bf5 Rbb6 Bg6 Rgg3 Be8 Rb3 Bg2 Rgc3 Ra8 Bed5 Be4 Rb4 Nb7 d8Q Bd7 Qb8 Nd8 Rb1 Ra7 Qa8 Rc7 Bb7 Rc5 Bdc6 Rd5 Rbb3 Rd3 Rb4 Bh7 Bh1 Be4 Bc6 Qa2 Rb7 Bcf4 Rbb3 Qad2 Rb2 Nc7 R2b6 Nb5 Nf3+
1b1Q3q/1N1RQ1k1/1bNP3N/2nq2q1/BrQ1R3/1rn4K/bNq2p2/4Q1BB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kg2 a5 b4 f5 e4 Kf7 h4 c5 d4 g4 h6 a4 h7 c4 h5 c3 e5 g3 e6+ Kg7 h6+ Kf6 d6 c2 d7 f3+ Kh3 a3 e7 g2 e8B f2 b6 a2 d5 f4 d6 f3 b7 Nc6 b8N Bb7 b5 Na5 b6 Nb3 Nd2 Bc8 b7 Qa5 Nc4 Ra6 Qe1 Nc5 Nb2 Bg7 Nc6 Ne7 b8Q Rb6 Qa7 Rb4 Be3 c1Q Rb1 Bb7 d8N a1Q Bd3 f1Q Be4 Rf8 h8Q Qf2 h7 Qfc2 Qg8 Nd5 h8Q Nc3 Qc4 Rg8 Bf2 Qg5 Be3 Ba8 Nb7 Rb3 Bd7 Rb8 Bf2 Qd5 Qd8+ Kf7 Rc1 Bd4 Rd1 Be3 Rd4 Kg7 Be8 Qg5 Bd5 Qb5 Re4 Qba5 Ne5 Qb5 Ne2 g1B Nf7 Qba5 Nd4 Q5a2 Na5 R8b4 Qae7 Bb7 Ba4 Bc6 Be6 Bd5 Ndc6 Bd4 Nb7 Be3 Bg4 Bd4 Bg3 Bge3 Bh2 f2 Bb5 Qa8 Bf3 Qad1 Ba4 Qdd2 Qdc7 Qe8 Qcd8 Qh8+ Rh4 Qdd1 Bg1 Qdd3 Rh2 Qe4 Rg2 Be6+ Rg4 Qd5 Rh7+ Kg6 Qa1 N5e4 Nh6 Ra3 Qec7 Qde5 Qa6 Ba7 Bh1 Ba2 Qc4 Qd5 Qe1 Beb6 Rh4 Nc5 Re4 Bb8 Rhe7 Qhd4 Nf7 Rab3 Qcd7 Qdf6 Qe6 Kh7 Rd7 Qh8 Qee7 Kg7+ Nh6+
2Rb2qq/N4NQ1/2Bpr2Q/1nq1RKBb/1B1Qrb2/Pn6/N3b1BQ/2k5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 c4 g5 h4 b5 f4 d6 a3 b3 c6 b2 c5 b4 c7 b3 c6 g4 h6 g3 h7 g2 h5 Bh6 Qd3 Ne7 Nh3 g1Q Qd4 Nd7 Ng5 Ba6 c8N Be2 c7 Nd5 Na7 Qg8 c8B Nc7 Nf7 Nb5 Bb7 Re8 Bc6 Re6 Nc3 Q1g7 Ra2 b1Q+ Rc2 b2 Bg2 Bg5 Bd2 Qg1 h6 b1B Rh3 Ba2 Re3 Bac4 Rc1 Bh5 Rc2 Bce2 Rc1 Qc8 Be1 Rf8 h8Q Rfe8 h7 R8e7 Qf8 Qh8 Qg8 Bh4 Qg3 Qcg8 Qh2 Qhg7 h8Q Nc5+ Kd5 Nb3 Ke4 Re8 Qh7 Q7h8 Qg7+ Ke7 Ba8 Kd7 f6 Kc7 Kf5 e4 Bc6 Bg3 Qd2 Kb6 Qd4+ Ka5 Na2+ Ka6 Bb4 Bh4 Rc5 Bg5 Rec3 e3 Re5 Bh4 Rc2 Bg3 Nc3 Qc1 Bc5 Ka5 Ne4 Rb8 Nd8 Qh1 Qd5 Ka4 Bd7 Na1 f7 Bf1 Kg5 Rc8 Bb4 Rc3 Qd4 Kb3 Be8 Rd3 Rc8 e2 f5 e1B f6 Bf4+ Kf5 Re3 Bc6 Kc2 Qh6 Re2 f8B Bh4 f7 Nb3 Be7 Re3 f8Q Bfe2 Qff6 Qc1 Qfg7 Kb1 Nf7 Qc5 Nc3+ Kc1 Bf8 Bd8 Be7 Re4 Bf6 Bf1 Bg5 Bfe2 Na2+
b2Rqnr1/2KRb3/r1Pn2r1/4B3/RQ1NBrB1/N3NBkQ/bpR2q2/8 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 a4 e5 h4 e4 c4 e3 f4 b3 a5 b4 h6 g4 a6 e2 h5 e1Q a7 g3 h7 g2 c6 d6 c5 b2 c7 b3 h6 Qee7 Qe1 Qdd7 Ra4 Qde8 Qb4 Qh5 Be2 Qd7 Bf3 Qg4 Rh2 Qh5 Nh3 g1R Na3 b1B Bb2+ Kf7 Be5 b2 f6 Kg6 f7 Kf5 Nf2 Qh4 Ng4 Be7 f8N Qe8 Rc2 Nd7 Kc6 d5 Ne6 Nf8+ Kb6 Bb7 c8B d4 Kc7 d3 Nd4+ Kg6 f5+ Kg5 f6 d2 f7 d1R Ne3 Rdf1 Bd7 Ba2 Bdg4 Nf6 Be4 Rg8 h8R Rf5 Rh7 Qf2 Rg7+ Kh4 h7 Rf4 h8Q+ Kg3 Qh6 Rd8 a8B Rd6 Qh5 Ra6 Qh1 Ng6 f8R Rg2 Bef3 Ne4 Qh7 Nd6 Qh1 Bc8 Bae4 Bb7 c6 Ba8 Rgf7 Bf6 Rd7 Be7 Rd8 Rg1 Rf7 Nf8 Qh6 Rh1 Qh7 Rh6 Qh8 Rhg6 Qh6 Bf6 Rfd7 Be7 Qh3#
1k1n4/b1qbqr1R/2P2q1B/R1b1QRNr/3B1Q2/n1q4p/1RBQK2N/5B2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 a5 b4 d5 c4 Kd7 g4 Kc7 g6 e5 g5 h5 g7 e4 b6+ Kb7 f6 d3 f7 d2+ Ke2 d4 g6 h4 b5 e3 f5 a4 f6 a3 c5 a2 Nc3 Nh6 g8Q Ng4 g7 Bd7 Ne4 Rh5 Nf3 Qc7 Qh8 Ra7 g8B Ne5 Neg5 Nbc6 Bh7 Nd8 c6+ Kb8 b7 Bc5 f8Q Nc4 f7 Na3 Nh2 d3+ Kf3 e2 Qe5 e1Q Qh6 Bd6 f8R Be7 Rf5 Bc5 Qde2 d1Q Bf4 Qc1 Qd2 Nc4 Be3 Qc2 Bd4 Na3 Qhf6 Qb2 Qef4 Qe7 Q6e5 Qc3 Bg6 Rh7 Ke3 Rf7 Kf2 Ra5 Kf3 Ka7 b8B+ Ka8 b6 h3 Rg1 Qf6 Rg4 Rb5 Rh4 Qe7 Rh7 Ra5 Qb2 d2+ Kf2 d1Q Qbd2 Qdb3 Ke2 Qbe6 Ba7 Q6f6 Bb8 Qc8 Bd6 Qc7 b7+ Ka7 b8R Rb5 Rb6 Ra5 Rb2 Ka8 Rab1 a1B Ra2 Ba7 Rbb2 Rb5 Bb4 Kb8 Bbc5 Qee6 Bf8 Qee7 Rb1 Bb2 Bh6 Bc1 Rbb2 Bc5 Qd1 Be3 Qd2 Ba7 Bb6 Bc5 Ra1 Bd6 Bd4 Bdc5 Raa2 Nb1 Ra6 Na3 Ra5 Rb4 Bg1 Be6 Qfe4 Ba2 Rf3 Be6 Qh4 Bd7 Bc2 Nc4 Rf5 Na3 Bb3 Rg4 Bd4 Rf4 Qg3 Rh4 Qgf4 Rh5 Bc2+
1b2B3/Qb5k/2pBnb2/3Bq1NN/q1BRrQK1/NR1b1Q2/P2q4/Nn1r4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 Kg7 g4 h5 d4 b5 d6 e5 g6 b3 d7 b4 g5 c6 d5 b2 d6 h4 Rh3 b3 Bf4 e4+ Kg4 e3 Ne2 Na6 Qd4+ Qf6 d8N Nb8 d7 Ra5 Bd6 Ne7 f4 Kg8 g7 Rd5 Ne6 Rh7 d8N Na6 Na3 b1Q Qa7 b2 Nc5 Rd1 Nde6 Qe5 f6 Qc2 f5 b1B Nb3 Nc5 N2f4 e2 Nh5 e1B Bc4 Bc3 Rg3 Rh8 f7+ Kh7 f6 h3 Rd3 h2 Rd4 h1Q g8B+ Kg6 Bd5 Qhh2 Bc4 Bg7 f8Q Qhd2 Bf7+ Kh7 Be8 Bb7 f7 Bf6 Bd5 Rg8 Bc4 Nd5 g6+ Kh8 g7+ Kh7 Bb5 Bb4 Bc4 Nc3 Bd5 Ba5 Bc4 Bc7 Ng5+ Kh6 Bd5 Bb8 Bc4 Rh8 g8B+ Kg6 Bd5 Ne6 Bc4 Qb2 Bd5 Bd3 Rb1 Qbc2 Na1 Qa4 Rb3 Rh6 Qe7 Nb1 Qc7 Rh7 f8Q+ Rf7 Bd7 Re7 Qf7+ Kh6 Be8 Bh8 Qf3 Bg7 Bgf7 Bf6 Nh3 Kh7 Bc4 Nf8 Bfd5 Ne6 Ng5+ Kg8 Qcb6 Rf7 Qg2 Be7 Re4 Rf6 Qbf2 Rf4+ Kg3 Bd8 Rd4 Re4+ Qf4 Bf6 Qf3 Kh8 Kg4 Kg8 Nf7 Kh7 Ng5+
2Rr3B/N1k1q1QN/rpnR2b1/2q2Q2/4Q1P1/1r1N2nr/1b1Q1RB1/1N2Kb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 e5 d4 h5 g4 c5 g6 h4 d6 c4 d5 e4 g7 h3 f6 c3 f5 b3 a5 c2 a6 h2 f7 b6 f6 e3 a7 b2 Bg2 e2 Ra2 Qc7 Nh3 Ne7 g8Q Qc4 Nf2 Ng6 Qg7 Be7 f8Q Nf4 f7 Bf6 Qd2 Nh5 Nd3 Qc5 Rf1 h1B Rf2 Ng3 Ra4 Rh4 Rc4 Nc6 Rd4 Rb8 a8Q Ba6 Rc4 Re8 Qb7+ Kd8 d7 Rh3 Qa8+ Kc7 d8R Qe7 Rd6 Rd8 Rc5 Bc4 Qa4 Bb5 Qaf4 Ba6 Qe8 Bc3 f8N Be5 Qf5 Bc4 Bf1 Be4 Nh7 Ba6 Bg2 Bb5 Na3 b1R Qeg6 Ra1 Nb1 Ra6 Bb2 Bc4 Ba1 Bb2 Qge6 Bf3 Qee4 c1R+ Qd1 Rc3 Qd2 Rb3 Rg6 Kb8 d6 Kb7 d7 Kc7 Rh6 Bf7 Rc4 Qc5 Rd6 Bg6 Qgf7 Ba3 Bh8 Bc1 Qg7 Bb2 Bh1 Bg2 Rc2 Bf1 Bg2 Rg8 d8N+ Kb8 Ne6 Rd8 Nc7 Kb7 Nb5+ Kb8 Qgd4 Kb7 Na7 Kc7 Rc4 Ne7 Qfe5 Qc6 Q4f4 Kb7 Qg7 Qd5 Rcc6 Qc5 Qf5 Kb8 Rf4 Kb7 Kf2 Kb8 Rf3 Kb7 Rc8 e1Q+ Kg1 Qe6 Kf2 Qd7 Q4e3 Nc6 Ke1 Qc7 Qee4 Qe7 Ra8 Kc7 Rf2 Raa3 Rb8 Ra6 Rc8+
K7/Q1rR3N/P1R1bqR1/4rk2/b1np2qQ/3nqN2/BR3b1B/2Bq2QQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 b5 Kd5 g5 a4 e5 h4 e4 c4 e3 f4 b3 a5 b4 h6 g4 a6 e2 h5 e1Q c6 b2 h7 b3 h6 g3 c5 g2 c7 d6 c6 Nd7 Rh2 Be7 Bc4 Qf2 Nd2 b1Q Ne4+ Kf7 f6 Kg6 f5+ Kf7 Ng5+ Ke8 f7+ Kf8 N1f3 b2 Qg1 Ra7 Ba2 Qbc2 Rb1 Qce2 Rh4 Qg3 Rg4 Ne5 Rd4 Bd7 c8R Qg4 c7 Qe3 Rb8 Be8 c8R Nc4 Rb6 Ba4 Rcc6 Rc7 Rd3 Bf6 Rd1 Ke7 f8Q+ Kd7 Qf7+ Qde7 Rd3 Bd4 f6 Bc5 Qg7 Bd4 f7 Qf6 Qh1 g1Q f8Q+ Qfe7 Qb8 Qd1 Qg6 Qf6 Qa7 Ke7 Qg1 Bc5 Qh5 Bd4 Qh4 Bc5 Ra1 b1B Rb2 Bbc2 Rab1 Bcb3 Rg2 Kd7 Rbb2 Ke7 Ne4 Kf7 Neg5+ Kg6 Rb6 Qed2 Qhh1 Bf2 Rd4 Qh3 Rb4 Ne5+ Rc4 Qe3 Rg4 Nd3 Rg2 Rb7 Rgg4 Rb5+ Kc6 d5+ Kc7 Qg2 Rc6 Kf5 Rg3 Rc5 Kb8 Ne7+ Kb7 Ra8 h8Q Rc8 h7 Rc7+ Ka8 Nc8 Rgg4 Nd6 Qd8 Qf8 h8B Ra5 Nh7 Qfe7 Rh4 Qg4 Rh6 Qeg7 Qdh4 Qf7 Re4 d4 Be5 Qf6 Bh2 Rc5 Re6 Re5 Re7 Be6 Rd7 Nc4 Rg6
2Q3Q1/1N2qq1P/1R3nBb/1brB1pkn/2Q2Rr1/2K1n3/1R2N1n1/BB3bR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 d5 b4 f5 c4 a5 e4 g5 h6 a4 c5 a3 h7 d3 b6 d4 b7 a2 h5 g4 h6 g3 e6 Kf6 e5+ Kg6 b5 g2 c6 Ra4 e7 Ra8 e8B+ Kg5 c7 Nf6 e6 Qd7 b6 Ng8 e7 Qe6 Bf7 Ra4 e8B Bd7 c8Q Nf6 Qb3 Nh5 Nc3 Qe7 Bd5 Bb5 Nge2 g1Q Qbc4 Nd7 b8R Ndf6 b7 Bg7 Rb1 a1N Rb4 Nc2 Bg6 Ne1 Bb2 Ng2 Ba1 Qh2 Rb2 Qhc7 Rg1 Ra5 Ra8 Rg8 h8Q Qcd7 h7 Bh6 b8R Qc7 Kc1 d2+ Kc2 d1N Na4 d3+ Kd2 Qcd7 Nc5 Ne3 Kc3 d2 Rb6 d1B Nb7 Qf7 Ra7 Qde7 Raa6 Rg7 Qhg8 Bc2 Ra8 Bd3 Rb8 Be8 Ra8 Rc5 Ra4 Bb5 Ng3 Be4 Bd3 Bf3 Bb1 Be2 Qh8 Bf1 Ne2 Rg8 Rab4 Rd8 Qg8 Rd6 Bc6 Rd4 Bd5 Rg4 Rd2 Nhf4 Rbb2 N4h5 Rd4 Rh4 Re4 Rg4 Rf4
b3kR1N/7p/qPqQb2n/N1Rr1R2/QK1bN2r/n1B2BN1/6q1/1bR3Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 f5 b4 c5 d4 a5 Kd2 f3 Kc3 c4 e4 f4 d6 f2 g6 f3 e5 a4 g5 a3 e6 a2 d5 Ra4 d7+ Ke7 g7 Qc7 d8N Qf4 d6+ Ke8 g6 Ba6 e7 Nf6 g8Q Kd7 e8Q+ Kc8 g7 Qh2 Ne2 Ng4 Bd2 Nd7 Bg2 Nh6 Rf1 Nb6 d7+ Kc7 Qg6 Bc8 Nc6 Bc5 d8N Kd7 Nf7 Bb7 Qb8 Rd8 g8R Ba8 Nh8 Be3 Qgc2 Qh3 Rg5 Ke8 Ng3 Qh2 Kb2 c3+ Kb3 Nc4 Qf4 Rd4 Qd6 Qg1 Qcc1 c2 Nc3 Qh2 Rb1 a1Q Qa3 c1Q Be1 Qd2 Rc1 Qh1 Rh5 Rh4 Rc5 Qd5 b6 Qh2 b7 Bd4 b5 Ra5 b6 Rb5+ Qb4 Qa6 Na5 Na3+ Rc4 Qc6 Nce4 Qh3 Bc3 Rbh5 Qa4 Rd5 Rc5 Qh1 Re1 f1B Kb4 f2 Re3 Bd3 Rf3 Bb1 Qg1 f1B Rf4 Qh2 Bf3 Bh3 Rf6 Be6 Rf5 Qh1 Qe5 Ke7 b8R Qg2 Rbf8 Kd7 R8f7+ Kd8 Qd6+ Ke8 Rf8#
R1rR1K2/2qbQ1Pp/qR1N2B1/5Bn1/4RB2/r2N1Bbr/3q1Q1q/2N2k1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 f5 g4 a5 e4+ Kb4 g6 c5 g5 c4 g7 f3 g6 a4 d6 c3 d7 c2 Ke6 a3 Kf7 a2 b6 f2 e5 f4 b7 f3 d5 Na6 b8R+ Kc5 d6 Qa5 d8Q Bd7 b4+ Kc6 b5+ Kc5 e6 Nf6 g8B Bc6 e7 Qe1 e8B Qa5 b6 Qd2 d7 Kd4 g7 Ke3 b7 Nb4 Bh3 f1Q Nc3 Kf2 Nb5 Ne4 Ne2 Qg1 Nd6 Nd3 Qe7 Qh2 d8R Bd7 Bf5 Ra3 Qe1+ Kg2 Ra8 f2 b8N f1Q Rb1 a1R Rb6 Ndf2 Na6 Rh3 Nc5 Raa3 Nd3 Ng5+ Kf6 Qd1 Bf4 c1Q Beg6 Qc7 Nec1 Qd2 Bb3 Qfe2 Bd1 Rg8 Rf1 Nh1 Rf3 Qf1 Re3 Qfe2 Qg3+ Kf1 Re4 Rh8 Ne1 Qa6 Bf3 Ne6 Kf7 Rg8 Qe8 Be7 Ned3 Bh4 Qe7 Rh8 Qg4 Bg3 Qgh4 Re8 Qf8 Ng5+ Kg8 Re5 Qe7 Rc5 Kf8 Qb8 Rbb4 Rc8 Rb1 Qc7 Rb6 Nf7 Qhf6 Ng5 Qd4 Qaa7 Qe3 Qa6 Qf2+
Nnb3B1/r2rB1p1/RQ1N3k/bq6/RrQKQn1N/5P1B/b7/Nq1bB3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 a5 c4 e5 b4 d5 h4 a4 f6 a3 b6 a2 b7 Nh6 b5 Na6 b8Q Bd6 b6 Re8 b7 Re6 c5 Kf8 f7 Rg6 c6 Nc7 Na3 Qd7 Nc2 Qe6 Qf3 Ra7 Bd2 Rg3 Bh3 Qd7 Be1 Nf5 h6 Ne6 h7 Ne7 h8N Rg4 h5 Bb4 h6 Ba5 c7 Nc6 h7 Ke7 Qe4 Kf6 f8N Kg5 Nf3+ Kh6 Nh4 Qe8 f3 Qd7 Rb1 a1Q Rb6 Qb1 Ra6 Qe8 Nd7 Qh5 Qa8 Nb8 Nb6 Rf4 Rh2 Rf7 Rg2 Rd7 Rg4 Qg5 Ke2 Qh5 Na1 d3+ Ke3 d2 Qc4 d1B Rf4 e4 Rg4 Nf8 Kd4 e3 Rf4 e2 Be6 Qb4 Bg8 Bb3 Rg4 Ba2 Rf4 Qe8 Nf7+ Kh5 Rg4 Ng6 Nd6 Kh6 Re4 Nf4 h8Q+ Kg5 Qh7 Qb1 Qf5+ Kh6 Qg4 Rf7 Qg1 Qeb5 Qf2 Be6 c8B Rd7 Re3 Bg4 Ra3 Bf5 Ra4 Bg4 Bd2 e1R Bc3 Re3 Be1 Rb3 Qg1 Rb4 Qe3 Rf7 Bf5 Rd7 Qb3 Bh5 Bh3 Bg4 Kc3 Nc6 b8B Bf5 Bc7 Nb8 Bd8 Be6 Be7 d4+ Kd2 d3 Kc3 d2 Qae4 d1B Na8 Rdb7 Qb2 Bc8 Qf2 Rc7 Qb6 Rd7 Kd4
1Bq5/1b2qpq1/n2RrRn1/2b1RB2/1NN5/1b3kQR/QPQ5/Q2K1brN b - - 0 1 illegal: No possible last move, all moves rejected
B2NbqR1/2r1P1QN/5QQ1/2b5/1rRR1q2/1rB3nK/pnR3N1/1qr1Nk2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 Kd6 h4 Ke5 b4 Kd4 e4 f5 d6 a5 h6 g5 h5 c5 e5 g4 d7 g3 b6 c4 e6 a4 e7 f3+ Kh3 f4 b7 g2 b5 a3 h7 a2 h6 f2 b6 c3 Ne2+ Kd3 Qc2+ Kc4 d4 g1R d5 f3 d6 Rg6 Bd2 Na6 b8R Nf6 b7 Ra7 Bg2 f1Q Rh2 f2 Nf4 Rg4 Qg6 c2 Bc3 c1R Ra8 Qh1 b8N Bg7 Be4 f1Q+ Ng2 Re8 h8Q Nb4 h7 Qf4 Bf3 Ne4 Na3+ Kd3 Nc2 Be5 Qhf6 Bd4 h8Q Bc5 Qhg7 Rc7 Rb1 Ba6 Rb3 Qc8 d8N Bb5 Nd7 Rg8 Nf8 Be8 d7 Rh8+ Qh5 Ng3 Nh7 Qe1 Bc6 Ke2 Qhg6 Nd3 Rb4 Kf1 Rc4 Nb2 Be4 Qd1 Nce1 Qc2 Raa4 Qb1 Ba8 Rf8 Rd4 Rf7 Rac4 Qb8 Qfg5 Rf6 Qh4 Rb6 Qhf6 Rbb7 Nf7 Rb3 d8R Bd7 Rg8 Qf8 Nd8 Be8 Nh4 Qf3 Rc2 Re4 Nhg2 Qf4 Rd5 Rd4 Ra4 Rdb4 Rd4 Rb5 Rac4 Rb8 Rd3 R8b4 Rdd4
1r1R2N1/2K1p1b1/1NR1PNnr/q3Qrk1/1Bb3n1/3n1R2/BN2B2q/1Q2R1n1 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 Kf2 f5 Ke3 Kf7 Kd4 Kg6 Kc5 a5 e4 a4 h4 f4 b4 c6 d4 a3 e5 f3 d6 a2 h5+ Kf5 b6 f2 g6 g3 b5 g2 d7 Qe8 d8N Ba6 b7 Qd7 Kb6 c5 h6 c4 g7 c3 d5 c2 h7 Ra7 d6 Nc6 b8N Qe6 d7 Qb3 Nf3 g1Q Nfd2 Kf4 Nc3 Nf6 g8B Qg3 Nd5+ Kg5 Nf7+ Kf5 d8R Qgd3 Be2 f1N Ba3 c1N Rh6 Ng4 Nc4 Ng3 Nf6 Qd6 Bb4 Qb2 Nbd7 Qbd2 Nb2 Nd3 Qb1 Bg7 Rg6 Kf4 Nh6 Ra8 Bd5 Qc5+ Kc7 Rb8 b6 Bc4 b7 Qa5+ Nb6 Rf8 e6 Nce5 h8Q Qc2 Rg5 Ng6 Nhg8 Rf7 Re5 Rf8 Re3 Kg5 Rf3 Rf7 Nd7 Rf5 Ndf6 Qd2 Rd6 Qc2 Rc6 Qd2 Bd1 Ne2 Qh2 Ng1 Qe5 Qh2 Be2 Rd8 b8R Rf8 Qe1 Rd8 Rc1 a1R Qd1 Rf8 Rd8 Ra3 Qc2 Rc3 Re1 Rb3 Nh6 Rh8 Nhg8 Rh6 Qb1 Qa3 Ba5 Rb5 Bb4 Qc3 N6a4 Rb8 Nb6 Qa3 Qc2 Qa5 Qb1 Bb5 Bb3 Bc4 Ba2
KR1B4/N2PqBq1/1N6/BqBN3Q/Q3Q3/bq1p2k1/nnb3n1/r1rQ1R2 b - - 0 1 illegal: No proof kernel
q1R1BnKN/3P1nb1/n7/2Q1Q1qq/2RpR3/1QNBBk2/1B1r2r1/1b1Q1n2 b - - 0 1 illegal: No proof kernel
2q1r1Bb/R2p1BRr/1Nk3P1/4bbRr/N1Qrq1Q1/1nQn1B2/3B2Q1/1K6 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 g4 e5 c4 h5 Kc2 e4 b4 e3 f4 h4 g6 a4 g5 e2 b6 e1B g7 h3 g6 h2 b5 a3 b7 a2 c5 Bd2 b6 Rh4 c6 Be3 c7 Bd2 f6 Ra3 f5 Be1 f7+ Ke7 f6+ Kd6 Bc4 Rd3 Na3 Nh6 g8B Nf5 Ne2 Ng7 Nc3 Rhh3 Qg4 Rh7 Rg1 h1R Ne4+ Kc6 Nc5 Na6 b8Q Rd1 b7 Bc3 Qa8 Nf5 b8Q+ Bb7 c8B Bd6 f8R R1h5 f7 Re1 Bd2 Re8 Be6 Bf4 Nc4 Be5 Nb6 d3+ Kc1 Bh8 Qbf4 Nb4 Qc4 Bce5 Qa3 Qe7 Qac3 Nd4 Kb2 Ba8 Rg2 Nb3 Bb7+ Kd6 Bf3 Be4 Bd5 Bf5 Rgg1 Qh4 Qg2 Qe4 Be6 Rb8 Re8 Rc8 f8Q+ Kc6 Bef7 Rb8 Re7 Re8 Rab1 a1R Qg7 Ra4 Ra1 Nd5 Kb1 Nf4 Qg4 Rb4 Ra7 Ra4 Bc1 d2+ Qc2 d1Q Rg3 Bd6 Qgc3 Nd3 Qg2 Qe2 Bd2 Bde5 Be6 Qe3 Rg7 Qg5 Bef7 Qd8 Q4h3 Qa8 Rg5 Qc8 Qhg4 Rb4 Qa6 Rd4 Qb5+ Kd6 Qbc4 Kc6 Nca4+
r3b1n1/1Bp1BkN1/BQ3RN1/1R1K1P1b/3n1NR1/3b2N1/B2Q3b/q1q1q2r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 b5 Kd3 h5 Ke4 e5 f4 b3 a4 b4 d4 b2 g4 b3 d6 h4 d7+ Ke7 g6 h3 g5 h2 f6+ Ke6 d5+ Kd6 g7 Rh6 a5 Qe7 d8Q+ Qd7 f7 Ra6 f5 Rc6 g6 Rc4+ Qd4 Nc6 a6 Bb7 a7 Nb8 a8B Ne7 g8B Rb4 g7 Ra4 Nd2 Nbc6 Nh3 b1B+ Bd3 b2 Nf1 Bc2 Rb1 Bd1 Nf4 Bh5 Ba6 Bc8 Rg1 h1Q+ Rg2 Ra3 Ng3 Qf1 Bd2 Qc1 B8b7 Rh7 Qf2 Nd4 Rh2 Ra5 Rh4 Ra1 Rg4 Ra2 Be3 Ra1 Qd2 Ra3 Qe8 Qa4 Qb5 Bd7 Qb6+ Bc6 Rg6+ Kd7 Rh6 Kd8 Bf2 Be8 d6 Qad1 d7 Ra1 Bf1 Ra8 Rf6 Qa4 Bfa6 Qa1 Nh1 Rh6 Bh4 Rh7 Ng3 Rh6 Bh7 Ng8 Kd5 Ke7 d8N e4 Nde6 e3 Bg5 e2 Bg6 Rh7 Bh4 Nh6 g8R e1Q Bg5 Bg7 f8N Rh8 Bf7 Rh7 Rh8 Ng8 Bh4 Rh6 Rh7 Bh8 Rg7 Rh7 Rg4 Bg7 Nd3 Bh6 Ng7 Bf4 Nf1 Bh2 Ng3 Qg1 Nf4 Qce1 Rc1 b1B Rc5 Bd3 Rb5 Rh6 Kc5 Qgf1 Ba2 Qec1+ Kd5 Qfe1 Rc6+ Kf7 Be7 Re6 N8g6 Re3 Qc2 Rf3 Qg2 Rf1 Qd2 Rh1 Rf6+
2N2KNr/2p1RP2/B1b2b2/2r1R3/N2Bn3/1Q1q1nk1/1q1r1R2/b2NBQBr b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 a5 Kg5 Ke5 b4 h5 Kg6 Kf4 Kf7 e5 g4 a4 d4+ Ke4 f4 a3 g5 h3 b6 h2 d6 h4 g6 a2 g7 h3 b7 Nf6 g8N Ra7 d5 Nfd7 f6 Ra3 f5 Ra5 b5 Nc5 b6 Nd3 d7 Nc5 d6 Rh4 Bb2 Kf4 Bd4 e4 Nc3 e3 Ba6 e2 Qf1+ Kg4 Na4 e1Q Ne2 Nd3 Nec3 Nb4 Nd1 N8c6 b8B Qe3 b7 Qe1 Bba7 Qc3 b8Q Nd5 Qb3 Bb7 Rc1 Qb4 Rc5 Nc3 Re5 a1B Bg1 Qa3 Bad4 Rh8 Re7 Qb8 d8N Ne4 d7 Bg7 Ke8 Ba8 f7 Rc5 f8R Ne5 f6 Bc6 f7 Qb5 Nb7 Nf3 Nd6 Qb2 Nc8 Kg3 Re5 Q5e2 Ke7 Qd3 Re8 Bf6+ Kf8 Rc2 d8B Rd2 Be7 Rh5 Bb4 Rg5 R5e7 Rc5 Bge3 Kh4 Rg1 h1R Rg2 h2 Rf2 Kg3 Bbc3 Rg1 Re5 h1R R8e7 Rh8 Bb4 Rgh1 Ba5 Rdc2 Be1 Rd2 Rh2+ Kg4 Bg1 Kf4 Rf2 Kg4 Nd6 Kg3 Nc8
nr1B1b2/KP1N4/2R1Q1b1/3bQ1qB/1Nq2n2/1Nkr2NQ/pq4qQ/3BR3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 b4 e6 f4 a4 b6 h3 g5 h4 b5 a3 b7 h2 g6 a2 g7 h3 f6 c6 b6 Rh7 f7 Ra5 f5 Ra3 f6 Nd7 b8Q+ Qc7 b7 Ra7 Qe2 Be7 f8N Nc5 f7 Ra3 Nd7 Nd3 f8Q Nf4 Qe8 Nf6 g8B Bf8 Bf7 Rh8 Bh5 c5+ Kc4 e5 Kb5 c4 d4 c3 Nd2 e4 Nb3 e3 Qd2 c2 Bfe2 Ne6 Bd1 Nf4 Ne2 Rg8 Rg1 h1Q Re1 h2 Ng3 e2 Bb2 Qg1 Rc1 h1B Qa5 Bf3 Ka6 Qg2 Ka7 Be4 Qf7 Ne8 Qf5 Rh8 Qh3 Bg6 Ba1 Ke7 Bc3 Qc4 d6+ Kf7 d5 Nc7 Bd4 Na8 Bb6 Kg7 Bd8 Rg8 Ne5 Be6 d7 Rh8 d6 Bd5 Bb6 Kf6 d8N Rg8 d7 Rh8 Ndc6 Rg8 Rf1 e1Q Nb4 Qec3 Re1 Qb2 Qa6 Rh8 Qh2 Ke6 d8Q Rg8 Qdc8+ Kf6 Rb1 c1Q Qch3 Qe3 Rc1 Qec5 Nd2 Rd3 Nb3 Qcg1 Nf1 Qg5 Ng3 Qgg2 Rc3 Bg7 Qc7 Rb8 Qc5 Bf8 Qe3 Ke7 Nd7+ Kd6 Qa5 Qa3 Bd8 Qab2 Na6 Kc6 Qc7+ Kb5 Qce5 Qa4 Rc6 Qc4 Qee6 Ka4 Nb4 Kb5 Q3e5 Ka4 Na1+ Ka3 Nac2+ Kb3 Nd4+ Kc3 Nb3+
Rq1rr1BR/Np1n4/6B1/4nq2/Q4B1K/Q1N1rbQ1/1kP5/brn2RRB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 a4 Kf7 g4 d5 f4 h5 Kf2 e5 Kg3 e4 g6+ Kf6 g5+ Ke7 g7 b3 f6+ Ke6 f5+ Ke5 c6 d4 f7 e3 f6 b2 a5 e2 g6 e1R c7 d3 a6 Kd4 a7 d2 Kh4 Ne7 g8Q Re3 g7 Bg4 c8B Bf3 Na3 Kc3 Bg2 b1R Bf5 Nd7 Bg6 Qb8 Rh2 Nc6 Bh1 Bc5 f8R Bd4 f7 Nce5 Qf1 d1Q Qb5 Qf1 Qa4 Qd3 Bd2+ Kb2 Nb5 Bc3 Ne2 Qf5 Rf2 Bd4 Rf1 Bc3 Rd8 Bd4 f8Q Bc3 Qe6 Bd4 Qfd6 Re8 Qec4 Bc3 Qg4 Bd4 g8B Bc3 Kh3 h4 Rc8 Bd4 Nec3 Rd8 Be1 Re8 Bg3 Rd8 Bf4 Re8 Kh2 h3 Kg3 h2 Kh4 Rd8 Qg3 Re8 Bg2 h1N Qc5 Nf2 Bh1 Nfd3 Rd8 Qc7 Qe7 Rb8 a8R Nc1 Na7 Rc8 Rg1 Qb8 Re1 Na2 Nab5 Rd1 Ne2 Rf8 B8f7 Rc1 Re8 Rd8 Rg1 Re1 Na7 Rg8 Nc1 Kc3 Bb3 Rf8 Qea3 Rf1 Re7 Rfe8 Ne2+ Kd2 Rb1 Ba1 Nc3 Rc1 Bg8 Rd1 Rb2 Kc1 Rh7 Re1 Rh8 Rd1 Qe7 Re1 Rb6 Rd1 Rd6 Kb2 Rd5 Rc1 Rdd1 Rb1 Rdf1 Nc1 Qea3#
2b1rR1N/Kpn1N3/B4n1r/2P1N2B/2qq3Q/1rbQ1RB1/R2rR3/2kN1b2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c6 Kf7 Kd2 Kf6 Kd3 Ke5 Kc4 Ke4 Kc5 g5 c4 d5 f4 g4 h4 d4 a4 d3 h6 g3 f6 d2 f7 Ke3 h7 g2 a5 b3 f5 b2 f6 Bg7 f8N e5 f7 e4 h5 Bg4 c7 Qg5+ Kb6 Qh4 c8B Qf2 c5 Be2 a6 Bf3 h6 Ra7 Nc3 b1B Ng6 Be2 f8R Qf4 Ra3 Ra8 a7 Na6 Bh3 Nc7 Ne7 Re8 Nf3 g1Q a8R Kd3 R8a5 e3 Rh2 Qf7 Qb3 d1R Ka7 Qf2 Qb5+ Kc2 Bg4 Rd5 Bb2 Rd2 Nd1 Bd4 Rb3 Nf6 Ra2 Qe6 Ba1+ Kc1 Qd7 Bed3 Qd8 Bf5 Ba6 Bbd3 Qd5 Bf1 Bc3 Rc2 Be1 e2 Ne5 Qe3 Qd8 Qc4 Bg3 Bc8 Qd7 Qd2 Rf3 Bc3 Qd5 Qe3 Qd3 Qed4 Rhf2 Rb2 Rg2 e1R Rgf2 Rg8 h8Q Rb3 h7 Re2 Rg2 Rd2 Re2 Nh5 Qf6 Rg6 h8N Rh6 Qh4 Nf6 Bh5
n1Q5/1p6/2R2NB1/NP1bb3/1Qr1bn2/1KR1qN2/rQBr1R1R/Nq1k3r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 d5 hxg5 d4 b5 d3 Ba3 Bg7 Bb4 axb4 cxd3 Bf8 d4 Ra3 d5 Ra8 d4 Kd7 Kd2 Kd6 Kc2 h5 g4 e5 f4 c5 a4 e4 f6 h4 g6 e3 g7 e2 f5 e1R a5 h3 a6 c4 f7 h2 g5 c3 f6 Ra7 g6 Re7 Qe2 Be6 Ra3 Rd7 Nd2 Bg4 Ngf3 Nc6 Kb3 Nh6 g8B c2 g7 c1R Bh7 Qa5 g8N Nf5 Bg6 Bg7 f8R Rc4 f7 Nb8 Nf6 Ne3 Qg2 Rh5 Bfd3 Bf5 Rc1 Ra8 a7 h1B Rh8 Rh7 f8R Be4 Rc3 Qc7 Ra6+ Qb6 Qf2 Ng2 Qe2 Ke7 d6+ Ke6 Qf2 Rd8 d7 Nf4 d5+ Kd6 Qg2 Kc5 d6 Rh4 Rh6 Rh5 Ra2 Na6 Rfh8 Nc7 Rb2 Rf8 d8Q Rf7 Qf8 Rd7 Qe2 Bg2 Qc8 Rh1 Rbc2 Rd8 d7 Bd5 Ra2 Qe6 Rh2 Qe3 R8h6 Be4 Qe1 Bh8 Qb1 Bg7 Qb2 Bh8 Nd5 Be5 Nf6 Bd5 Ng5 Bge4 Ngf3 Rg8 d8Q Re8 Qdd7 Rd8 Qe7+ Rd6 Ne1 Kd4 Nc2+ Kc5 Na1 Kd4 Rf2 Rd8 Ra6 Rd7 Rc6 Rd8 Ka4 b3+ Qb4 Rd7 Rhh2 Rd6 Qc2 b2 Kb3 b1Q+ Qb2 Qee1 Nf3+ Ke3 Nh4 Qe2 Bc2+ Kd2 Bd3+ Kd1 Nf3 Rb8 a8N Qe3 Nb6 Ra8 Rh8 Ra2 Rhh2 Rd4+ Nc4 Na8 Bf1 Rd2 Bd3 Re6 Ng8 Re7 Nf6 Rc7 Re6 Rc5 Rd6 Bc6 Na5 Rc4 Re6 Bcd5 Rd6 Re1 Rc6 Rh1 Bc2+
1b1N1n2/PQ1Q4/4bKB1/N1q1p3/k1B1qRQr/5rr1/1Bq1nQR1/3Br2N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 b5 Ke4 h5 Ke5 c5 a4 c4 d4 h4 f4 e6 g4 h3 f6 c3 f5 b3 d6 Kc6 a5 b2 d5+ Kc5 a6 Kb4 f7 h2 d7 c2 a7 Rh6 g6 Rh3 f6 Na6 g7 Nb8 d6 Rg3 g5 Ne7 g8B Rc3 g6 Qb6 d8N Qf2 g7 Qd2 d7 Qf2 Na3 b1Q Bc4 Nd5 Bb2 c1Q Ne2 Qf3 Ra2 Qbc2 Bh7 Ka4 g8B b4 Bg6 b3 Ng3 Nf4 Rf1 Ne2 Nh1 Bh6 f8Q Qfe4+ Kd6 e5 Ke7 Rf3 Qf7 Bf8+ Ke6 Rg3 Rf4 Bd6 Qh7 Qce3 f7 Qc5 f8Q Rf3 Kf6 Bc7 Ng3 h1R Bgd5 Rh3 Nh1 Rh4 Qg1 Bd6 Qg4 Rg3 Bdf7 Rf3 Bh5 Bc7 Bfg6 Rg3 Ba1 b2 Qff7 b1R Bb2 Re1 Qf8 Qcd5 Qc5 Bd6 Qf2 Qc5 Qf7 Rf3 Qd5 Rg3 Qb7 Bc7 Nf7 Rf3 d8Q Be6 Qd6 Rg3 Nd8 Nd7+ Ke7 Nf8 Kf6 Ka5 Qd7 Bd6 Bb5 Kb4 Nc4 Rc8 Na5 Bb8 Ra1 Rc7 Rd1 Rc6 Bc4+ Ka4 Rd2 Qb5 Bd3 Rc3 Bc4 Rcf3 Qg1 Nd4 Rg2 Ne2 Qf2 Rb3 Qd1 Nc3 Qf5 Qc5 Qd6 Ra3 Bd1 Ne2 Qg4 Raf3 Qdd7+
R2N1QR1/PN1N1b1q/1p1Bb1BN/kB2n2q/1rb2n2/2KQbB2/5Q2/4r2q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 e5 d4 h5 Kd2 c5 g4 Kc7 d6+ Kb6 f6 b3 d5 b2 f7 h4 f5 e4 f6 e3+ Kc3 e2 a5+ Ka6 g6 b6 g7 c4 d7 e1Q+ Nd2 b1B g5 h3 d6 h2 g6 Qf2 Nb3 Bc2 Bf4 Nc6 Nc5+ Kb5 a6 Bd3 Nf3 Qa2 Rg1 h1B Ne5 Qe8 d8N Qe7 d7 Qh2 Rg2 Be2 Qd3 Rh4 Ng4 Qh3 Bd6 Ne5 Nh6 Qh2 Rg4 Bd5 Qd2 Bd3 Qf2 Qe8 Rg1 Ne7 g8B Be2 g7 N7g6 Bh7 Nf4 g8B Qh1 Rd1 Ka5 a7 Be7 f8N Qh5 f7 Bg5 Bg6 Rg4 Kc2 c3 Rg2 Bea6 Bb5 Be6 Rd5 Q1h4 Kb3 c2 Kc3 Bcb7 Rd1 Bbd5 B8h7 Ba2 Be4 Qh2 Bf3 c1Q+ Bc2 Qb1 Bg6 Qh1 Bb8 Bb7 Bge4 Bed5 Nde6 Nfg6 d8Q Nc4 Qd4 Bc8 Qf2 Bf4 Qd6 Bd7 Bc7 Re8 Bf5 Re7 Rdg1 Be8 Nfd7 Qe4 Re1 Rh4 f8Q Bf7 Rg3 Bc1 Bb8 Qb1 Rgg1 Re4 Rg5 Nf4 Rg8 Rd4 Bh7 Qbg6 Re5 Qg7 Bhe4 Qh7 Bg6 Re4 Bc7 Re1 Re4 Be3 Bb8 Bb7 Qd3 Bd5 Ng7 Re6 Bd6 Re8 Re7 Bb3 Nge6 Rc8 Re8 Ne5 Rd8 Rc7 Ra8 Ba2 Nd8 Bde6 Nf6 Rd7 Be7 Rd4 Nfd7 Rb4 Bd6 Bac4 Ncb7+
N1Bq1r2/p1NR3R/1n1B4/1r1N1b1q/2QqB3/Q1B5/1qNPQ2r/1kn2Kb1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 b4 Kf6 f4 c5 d6 e5 g5+ Kf7 d7 h5 b6 c4 b5 e4 b7 h3 b6 e3 g6+ Kf6 g7 c3 Ra6 h4 Qe2 c2 Nc3 h2 Bh3 Bb4 Nd5+ Kf7 f6 Kg6 f7 Bc5 f8Q Rh6 Kf1 Nc6 b8Q Rh5 b7 Nf6 g8B Nd4 Qc7 Nb3 Bb2 Nc1 b8B Re5 Bg4 h3 Bc3 Bb6 Bf3 Kf5 Qa3 Bc5 Bg4+ Ke4 f5 Bd4 Bh7 Bb6 Qf2 Kd3 Nf3 Bc5 Rd6 e2+ Ke1 Bb6 Nd4 Bc5 Qg2 Bb6 Kf2 e1R Qc6 R1e2+ Kf1 Bc5 Bc7 Rb8 Qca4 Re8 Qc6 Rb5 Qca6 Rf8 Bb8 Qc7 d8N Nd7 N8e6 Qd8 Nec7 Nb6 Na8 Bd7 f6+ Bf5 Nc6 Bg1 f7 Nb3 Qf2 c1Q+ Qe1 Kc2 Ncb4+ Kb1 Rd7 Rg2 Nc2 Re2 Bd6 Rg2 Bd1 Qb2 Bg4+ Nc1 Qe2 Bf2 Rg1 h1Q Qc8 Qh2 Qcc4 Qf4 Rh1 h2 Bg6 Qd4 Bh7 Re8 f8N Bg1 Ne6 Rf8 Nec7 Be3 Rg1 h1Q Bg6 Qh5 Rh1 Bf2 Rh4 Rh2 Rh3 Be6 Be4 Bf5 Rh4 Bg1 Rh3 Qg6 Rhh7 Qh5 Rdf7 Bg6 Bc8 Bf5 Rd7
7K/p1B1r3/Qq2nB2/nRbN2PB/b1Q5/1q1NrkB1/1r6/rN1Rq1RN b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 e6 g4 c6 f4 h3 f6 h2 b6 h4 b7 h3 f7 Na6 b8N Rh7 g5 Bh6 f8Q+ Re7 f5 Qc7 b5 Nb4 f6 Qd8 f7 Nf6 b6 Ng8 b7 Qe8 Qb3 Bd7 Be2 Qd8 Qc4 Nd3 Bh5 Nc5 Na6 Rb8 Nb4 Qb6 Qc8 Bf8 Nd3 Qb3 Ne2 e5+ Ke3 e4 Kd4 e3 Ng3 e2 Rg1 e1R Nh1 Be8 Bb2 R7e3 Ra5 Ne7 Rb5 Bd7 Qd8 R1e2 Qb6 Re1 Qa6 R1e2 Ng3 h1Q Ba1 Qh2 Nh1 Qf2 Bc3 h2 Ba1 Bh6 f8N Be8 Ne6 Bf8 Nc7 Bd7 Ng3 h1Q Bc3 Re8 b8B Qe1 Bb2 Qf3 Nh1 Rh2 Ra5 Qb6 Rb5 Qfd1 Bc3 Qb3 Bb2 Ng6 Ba1 Ne5 Bb2 Re7 Bc3 Be8 Ba5 Kd7 d6 Rf2 Nd5 Ke6 d7 Kf5 d8B Rh2 Qb4 Nc4 Bg3 Bd7 Qa4 Rf2 Bc3 Na5 Qc4 Rg2 Bdc7 Rf2 Bg6+ Kg4 Ba1 Kf3 Be8 Bf5 Bf7 Be4 Bc3 Ne6+ Ke5 c5 Kf6 Bf5 Bh5+ Bg4 Kg6 Rg2 Bf6 Rh2 Qd4 c4 Qc5 c3 Qc4 Bg7 Kh7 c2 Kg8 Bf8 Kh8 c1R N3f4 Rf2 d4 Rb2 Nd3 Ree2 Ne3 Rd1 d5 Rc1 d6 Rd1 Na3 Ra1 Nd5 Re5 d7 Re3 Bf7 Bf5 d8R Bh7 Nb1 Bg6 Bg8 Be8 Bf7 Bc6 Rb4 Ba4 Rb5 Rd7 Bg6 Bc5 Bf7 Re7 Rd7 Nd4 Bh5+ Ke4 Ne5 Rf3 Nb4 Ke3 Rd5 Ne6 Rd3+ Ke2 Rd1+ Ke3 Ned3 Ke2 Bg6 Re3 Nd5 Kf3 Bh5#
2KbR3/3Q1R2/1BN1r1qp/1PB4b/Bn2b2N/4bb2/nQ2Qb2/BN1Nr1k1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 e4 f5 b4+ Kb6 g4 c5 d4 c4 d6 a4 d5 c3 g6 c2 g5 h6 d7 f3 Ke6 f2 g7 a3 e5 a2 d6 f4 g6 f3 Ne2 Rh7 Ba3 c1B Nec3 Be7 Qe2 Qf8 Nd1 Bb7 d8N Ra5 d7 Qe8 Nc6 Nf6 g8Q Ne4 g7 Be3 Qh8 Nc3 g8N Bd8+ Nge7 Ra6 Bg2 Rg7 Re1 f1B Bh1 Qh5 Ng6 f2 Nh4 Rg1 Be4 Rh1 Bc2 Bg2 Ba4 f1B Kd6 Qe8 e6 Bf3 e7 Qg6+ Qf6 Bh5 e8Q Bg2 Qf7 Bgf3 Ke6 Bc7 d8B Be4 Qd7 Rg1 Be7 Bd8 Bb2 Bef3 Ne5 Bbe4 Nc6 Ra7 Rf1 Na6 Rf2 Re1 Rf1 Rc7 Bc5+ Kb7 b6 Bf2 b5 Nb4 Qd5 Re7+ Kd6 Re6+ Kd7 Be3 Qfd4 Bfg4 Rf7 Bgf3 Nd2 Bf2 Rc1 a1B Nb1 Nca2 Qg7 Ka8 Kc8 Be3 Bf6 Bad4 Qd7 Bf2 Be5 Bde3 Ba1 Rf6 Bd6 Bf4 Rc5 B2g3 Rf8 Re6 Rcf5 Bd2 Na5 Bdf4 b7+ Ka7 b8B+ Kb6 Re8 Bd2 Bde5 Kc5 Rf7 Bdf4 Nc6 Bfg5 Qed2 Kc4 Bec7 Bf2 Ba7 Bf4 Q2d6 B4e3 B7d4 Kd3 Bcb6 Ke2 Bdc5 Kf1 Qb2 Kg1 Qd3 Bd2 Qc4 Bde3 Qce2
bQb5/3rb1k1/2b2pQ1/1q1bn1Q1/1BR2B1K/RP1b2Q1/Rr4B1/3BN1Nn b - - 0 1 illegal: No possible last move, all moves rejected
1QB1k2b/QnN1B2n/2r2q1n/b4r1n/1BB1pR1b/N2NPR2/5bKN/Q7 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 h3 fxg4 Qa4 g3 Qd1 g2 Nc3 g5 Nb1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Ra3 Qc8 Ra1 Qd8 d4 h5 f4 e5 b4 c5 f5 a5 b6 a4 f6 a3 b7 h4 b5 h3 g5 e4 b6 a2 e3 c4 d6 c3 g6 h2 g7 c2 d5 Ra3 f7+ Kd7 Bd2 c1B Bc4 Ra7 Na3 Nf6 g8B Ra4 Nf3 g1B Kf1 Nc6 b8Q Ra6 b7 Nh5 Qa7 Qf6 Kg2 Bf2 Bb4 Na5 b8Q+ Nb7 Rf1 h1N Nh2 Be7 f8B Rc6 Qda4 Bd8 Be6+ Ke8 Be7 Rf8 Bc8 Bd2 Rae1 a1B d7+ Kf7 Rb1 Ba5 d8N+ Ke8 d6 Bde1 Ne6 Bd4 Kh3 g2 Nc5 g1N+ Kg2 Nf3 Nd3 Ng5 Qd1 Bh4 Rf3 N1g3 Qa4 Bf2 Rf1 Ba1 Qd1 Bd4 Qa1 Nf5 Rf4 Nh7 Rf3 Qe6 Rf4 Bh8 d7+ Kf7 d8N+ Ke8 Rf3 Qf6 Ne6 Nh6 Rf4 Qc3 Rf3 Rf5 Rf4 Qd4 Rf3 Qf6 Rf4 Bg1 R1f3 Bgf2 Nc7+
1NKQBBNR/Q2r3N/B2r2NR/2nn1qP1/2b2p2/3b1r1B/7r/1Rb1k1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 d4 a5 e4+ Kb4 b6 h5 g6 c5 g5 h4 b7 f3 d6 h3 d7 a4 Ke6 c4 d5 a3 e5 c3 d6 f4 g7 f2 Nf3 a2 Ba6 f1B Qa4+ Kc5 b4+ Kb6 b5 Kc5 b6 c2 Nbd2 h2 Nh4 Bb5 Ng6 Rh4 Rb1 Nf6 g8B a1R Bh7 Nd5 Ba3+ Nb4 Bg8 Kd4 Ne4 Kd3 Nf6 Ke2 Nh7 c1B Bf7 Ra7 Be8 N8c6 b8R Nd3 b7 Rh6 Ra8 Bg7 b8N Ne7 Qd4 Rc7 Qa7 Nd5 Bf7 Qg8 Bc5 Bb7 d8N Qf8 d7 Bc4 Ndc6 Ra3 d8Q Rd7 Ne7 Bc6 Be8 B6b5 Ng8 Bf6 Bd6 Be7 Bb4 Bc5 Bf7 Bg1 Be7 Qg7 Bf8 Ke1 Be8 Rf7 Kd6 Nc5 e6 Rf3 Bd7 Qf6 Bdc8 Qf5 e7 Bd3 e8B Bbc4 Be6 Rd7+ Kc6 Qf7 Bh3 Qf5 Qac7 Ne6 Kb7 Nc5+ Kc8 Bf1 Nh8 Bfd3 Qa7 Rhd6 Ng6 Qe6 Be7 Ne3 Ngf6 Bf5 Bf1 Rg3 Qdc7 Rd5 Nc6 Rd2 Bf7 Be4 Kb8 Na4 Kb7 Qe5 Rh8 Qf5 Be8 Rf3 Ng8 R2d6 Bf8 Bed3 Nb8 Nc5+ Kc8 Nd5 Qd8 Bd4 Rg1 h1R Rg2 Be3 Rh2 Bg1 Rh6 Rh2 Bh3
1Qr1r1rB/1b4Nk/q2pB3/1BPb1K2/3QN3/N3b3/nnbQRN2/1Q4Rr b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 Kg7 Ke4 h5 g4 a5 c4 e5 f4 a4 b4 d6 f6+ Kg6 b6 d3 b7 d2 f7 h4 b5 h3 f5+ Kh7 g6+ Kh6 c5 a3 b6 a2 f6 h2 g7 Qe7 g5+ Kg6 Bb5 Qe6 Na3 Na6 b8Q Nh6 g8N Nf5 b7 Ne3 Nh3 Bh6 f8Q Nc4 f7 Kh7 Re1 Nb2 Nf2 Nb4 Re2 Qe8 Qc2 d1B Qd2 Qe7 Rb1 a1R Qd8 Qd7 Qf6 Na2 Qff4 Qe7 Qfe3 Be6 Qed4 Bd5+ Kf5 h1B f8N+ Kg7 g6 Bc2+ Nd3 Be3 Nf6 e4 Nf2 Rg8 Ne6+ Kh6 g7 Qf8 Qa7 Qc8 b8Q Qa6 Qab6 Rc8 g8B Bf3 Bf7 Bg2 Nh5 Kh7 Neg7 Rg8 Be6 Bb7 Q8c7 Rac8 Ng3 Bf3 Qb8 Bh1 Q2d3 Bg2 Bd2 Bf3 Rg1 Re1 Rg2 Rh1 Bc3 Bd2 Qa5 e3 Ne8 Rg1 Qe5 Ba4 Bec4 Nd1 Re1 e2 Qb1 Rh1 Rgg1 Bfc6 Bb2 Bh6 Qd2 Bc2+ Qe4 Bf4 Bh8 Nb2 Bf7 Bd5 Ng7 Ba4 Qed4 Bh6 Rd1 e1R Rc1 Re6 Nge4 Ree8 Rce1 Bc2 Re2 Be3 Be6
1bn5/r3n2p/1BBn2BB/Q2b1N2/1bR4P/2nbq1Q1/kNR2QNK/2Q1r3 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 e4 Ke7 c4 Ke6 h4 d5 f4 g5 Kf2 a5 Kg2 a4 c6 a3 c7 a2 c5 g3 c6 d4 b6 d3 b7 g4 f5+ Ke7 f6+ Ke6 f7 d2 Ne2 Bd7 c8N Ra3 c7 Bc5 f8Q Ne7 Nbc3 Bb4 Nd6 Qe8 c8Q Nbc6 b8B Na7 Qa6 Bc6 Qf2 Nac8 Ba7 Bd5 Bb6 Ra5 Qc2 d1B Rh2 Ra3 Qcd3 Bc2 Qa5 Ra4 Qd1 Bd3 Bh6 Rg8 Kg1 g2 Rc1 a1N Nf5 Nb3 Qd2 Rh8 Nd1 Nd4 Nb2 Nb5 Rc4 Nbd6 Qde3 Ra1 Qeg3 Re1 Nf4+ Kd7 Rd4 Kc6 e6 Rf8 e5 Rf7 Rh1 Rg7 Kh2 g1N Bg2 Ne2 Be4 Nc3 Ng2 Re3 Rd1 Re1 Rd2 Rf7 Rc2 Rg7 Qa1 Kb5 Rc4 Rf7 Qc1 Rg7 Nd1 Ka4 Nb2+ Kb3 Bf3 Ka2 Be4 Nc6 Bf3 Ra7 e7 Qd8 e8Q Qg5 e6 Qe3 Qh5 N6e7 Rd4 B5c4 Bc6 Bb3 Qe5 Bd5 Rc4 g3+ Kh3 Ndb5 Nf4 g2+ Ng3 g1B Ng2 Nf5 e7 Bf3 e8B Nfe7 Bg6 Bh2 Qc7 Bfe4 Qc5 Bf3 Nf5 Bg3 Qf4 Bd5 Qg5 Bc7+ Qgg3 Bb8 Kh2 Nbd6 Qa5+
bNbkR2q/1b3QP1/Qr1NB3/7B/1n5K/bNr2p2/1n4Q1/N1BQRn1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 g4 c5 e4 a5 b4 h5 d4 a4 g6 h4 d6 f3 d7+ Ke7 b6 f4 g5 h3 g7 h2 e5 a3 b7 a2 e6 c4 b5 c3 b6 c2 d5 Qc7 d8N Qc3 g6 Nc6 b8N Qa5 d6+ Ke8 b7 Rh3 e7 Ra7 Nd2 Qg5 Be2 Nf6 g8B Ra6 g7 Nb4 Nf7 Qh6 Nb3 Rb6 Qd3 Nh5 Qa6 Qh7 Bd1 Qh6 Ne2 Ng3 Ned4 Qh8 Re1 h1B Rb1 Bg2 Na1 Bh1 Ndb3 Bg2 Be3 c1N Rb2 Bh1 Rbe2 Bg2 Ne5 Bh1 Be6 Bg2 Nc4 Nh1+ Kg1 Ncd3 Bc1 Rg3 Re4 Nb2 Be2 Qg8 Kh2 f2 Re3 f1B Bh5+ Rg6 Re4 Qh8 R4e3 Bd3 Re5 Bc6 Kh3 f3 Kh4 Bf1 Nd7 Bd5 b8Q Ba8 Qba7 Bd3 Nb8 Bde4 Qc7 Beb7 Qc5 Nd5 Qf2 Ne3 Qg2 Nf1 Bf5 Kf7 e8Q+ Kf6 d7 Ba3 Re7 Rg5 Bd3 Rc5 d8Q Rcc6 Nd6 Rc3 Nc2 a1N Bc4 Na4 Be6 Nb2 Ncd4 Nc2 Na1 Nb4 Ndb3 Nh2 Nf7 Nf1 Qd1 Be4 Nd6 Bed5 Ra7 Bdb7 Qeg6+ Ke7 Qf5 Kd8 Qf7 Bd5 Re7 Bdb7 Re8+
r4Q2/NQ1p4/1n1nbQNq/KNn2r2/n2b4/Q1B1rRr1/3kP1N1/4R1RB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 Ke6 c4 Kf5 h4 Ke4 b6 a5 b7 f5 e6 g5 b5 d3 Kc3 f4 b6 f3 c5 f2 c6 a4 e7 a3 Kb4 g4 c7 d2 h6 Ke3 h7 a2 h5 g3 h6 g2 Nc3 Nf6 Qa4 Rg8 h8Q Na6+ Ka5 Rg3 e8R+ Ne4 b8Q Bc5 h7 Bb7 c8N Bd4 Bb2 d1N Nh3 g1N Bg2 f1R Qa3 Nf3 Na7 Bd5 Rf8 Be6 Qb7 Nd6 Ncb5+ Kd2 Rg1 Qh4 Bh1 Ne5 Nf4 Qh6 Qf6 Nc3 h8N Na4 Ng2 N6c5 Ng6 Rf5 Rae1 a1R Rf7 Rb1 Ba1 Rbb3 Bc3+ Kc2 Qc6 Re3 b7 Rg3 b8Q Re3 Ba1 Kd2 Qf8 Rg3 Qb7 Rbe3 Bb2 Nec4+ Kb4 Ncb6 Bc3+ Kc2 Ka5 Rh5 Q6e7 Rd5 Rf3 Rf5 Ba1 Kd2 Qef6 Bd5 Bb2 Be6 Bc3+
2kR2QN/R1P2B1b/R6N/2BQbN2/Kb1B3r/2pnn3/1R1r1rN1/1br4q b - - 0 1 illegal: No possible last move, all moves rejected
4R3/B1pk2Nn/1nr2b2/1Q1q2b1/2Bn2Qr/Rnb1PB2/3Q1QKN/1b1B3R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 f5 d4 a5 g4 h5 b4 f4 g6 h4 d5 c3 b6 f3 g7 c2 g5 a4 b5 h3 g6 a3 e6 h2 d6 a2 d7+ Ke7 b7 Nf6 g8B Ra4 g7 Na6 b8Q Rb4 b6 Ne8 b7 Rh6 Nh3 Rd4 Bg2 Nb4 Nf4 Nd5 Qa7 Nb6 b8Q Nf6 Nh5 Rh4 Be3 c1B Nd2 Nh7 Nf1 Bb2 Kg3 f2 Bf3 Bc3 Kg2 Bb7 Bf7 Be4 g8B Bb1 Ng7 Rf6 Bd4 Kd6 e3 Be7 B7h5 Rg6+ Bhg4 Bg5 e7 Rf6 e8R Rfh6 Nd2 f1N Bc4 Re6 Qbb7 Qa8 Qbb8 Qd5 d8Q+ Kc6 Qf6 Kd7 Bh5 Rc6 Qa5 Na8 Ba7 Nb6 Qf4 Bcf6 Qe2 Bc3 Qf2 Bcf6 Nb3 Nd2 Nd4 Nb3 Qae1 Bc2 Qed2 Bb1 Re1 h1N Qg4+ Qf5 Bd1 Ng3 Rh1 Ne2 Nf3+ Ned4 Nh2 Qe6 Qgg3 Qe4+ Bhf3 Qd5 Qg4+ Bf5 Rb1 a1B Rc1 Bc3 Ra1 Bb4 Ra3 Bc3 Ne6 Bb1 Qb7 Nc8 Qb5 Nb6 Ng7+
KbNN1bN1/1p1n1QR1/3Bnb2/1QBQ3Q/1qR2nBn/k4r2/1r5P/4Nb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 g5 a4 e6 f4 g4 a5 b3 f6 c6 a6 b2 f5 g3 h6 g2 a7 Bg7 h7 Ne7 Nf3 g1N Qe2 Qe8 Qb5 Rg8 h8Q Qd8 Ra4 Nh3 Ne1 Rf8 Rg1 Qa5 Rc4 Ng5 Qh5 Ng6 Be2 Nf4 Bg4 Nd7 Nc3 b1N Ba3+ Qb4 d3 Bh6 f7 Nd2 f6 e5+ Ke3 e4 Kd4 e3 Ne4+ Kc7 Rg3 e2 Rg1 Rg8 f8Q Bg7 Qfe8 Bf8 f7 Rb8 Nf6 Kd6 a8N c5+ Ke3 Rg7 d4 Ndf3 Ng8 Nge6 Nb6 Nh4 Ke4 Rg5 Rg3 Rf5 Rg2 Ra8 Rg3 Be7 f8B Ra5 Qef7 Ra6 Bc1 Ra2 Be3 Rb2 Rg2 Nd3 Bg1 Rf3 Bf2 Ndf4 Rg3 Kc7 Be3 Bf6 d6+ Kb8 d5 Ka7 Qc6 Ka6 Be7 Ne5 d7 Ka5 d8N Nd7 d6 Qa4 Nd3 e1B Qcd5 Bb4 Ne1 Ba3 Bd4 Qb4 Bf2 Nb8 d7 Kb5 Bd6 Ka5 Na8 Ka4 Nb6+ Kb3 Qc6 Ka2 Qb5 Kb3 Rd4 c4 Be3 c3 Rc4 c2 Bec5 c1B Rg2 Nfg6 Kd5 Bcg5 Be7 Ngf4+ Kd6 Bh6 Rg1 Bf8 Rg3 Ng5 Kc7 Ka2 Bed6 Kb3 Nd5 Nge6+ Kb6 Ka2 Ka7 Kb3 Ka8 Ka2 Nc6 Kb3 d8Q Nd7 Nb6 Ka2 Be5 Bd6 Rg1 Bb8 Bed6 Qd2 Bf8 Ne5 Bf5 Ng7 Be3 Bae7 Rg4 Ka3 Qdd5 Qb4 Bc5 Be6 Rg6 Nd7 Nc8 Bed6 Bh3 Bf5 Rg3 Nge6 Nd8 Bd3 Rg7 Bf1 Bg4 Bde7 Rg5 Bg7 Rg6 Bef6 Bfd6 Bf8 Rg7
B1bn4/rpr2kB1/B7/1RQ3r1/4bbP1/1NQ1n1r1/qN2Q2N/RQK1B1b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 c5 Kd2 h5 a4 e5 f4 b3 g4 e4 d6 h4 f6 c4 f5 b2 g6 h3 f7+ Kd7 d5 h2 g7 Rh3 a5 Qf6 a6 Rh5 a7 Rh7 Nf3 Rh5 Nc3 b1R Na4 Qg6 f6 Rg5 Qe2 Nc6 Nb2 Nh6 g8Q Qh7 Qg6 Kd8 d7 Bc5 f8B Bg1 f7 Nf5 Bg7 Ke7 d8N Ne3 Ne6 Qg8 Nc5 Nd8 Ra5 Ra1 Nb3 Ra3 Rb5 c3+ Ke1 c2 Kd2 Rb8 a8B Ra2 Qh7 Ra7 d6+ Ke6 f8Q Qf7 Qfh8 Qg8 Kc3 Kf7 Bd2 c1B d7 Qe8 Be1 Qe6 Nc5 Qa2 Nb3 Nd5+ Kc2 e3 Qf2 e2 Qc5 Bf4 Qe4 Ne3+ Kc1 Bf2 Rg1 h1B Nh2 Bg2 Rh1 Bg1 Qeb4 Bf3 Qh7 Bd5 Qb1 Be4 Qbc3 Nd1+ Bd2 e1R Bd3 Re3 Be1 Nc6 d8Q Rg3+ Bd2 Ne3 Be1 Bh7 Bf1 Be4 Qd1 Nd8 Bd3 Bd7 Qe2 Rc8 Ra5 Rc7 Ba6 Bc8 Rb5 Qa4 Bd2 Bf2 Rd1 Bg1 Be1 Qc4 Rd4 Qe6 Ra4 Qc4 Ra1 Qa4 Qf2 Qa2 Qe2
1k3K2/prbQPB1r/2q1b2n/3B2NR/1bQrB1RN/1R6/R6N/2Bbr2n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 g4 h5 b4 c5 d4 Kc7 e4 c4 b6+ Kb7 b5 c3 g6 c2 g5 h4 e5 h3 g7 h2 e6 Nh6 g8B Ba3 e7 Be6 d6 Qd7 g6 Bc5 d5 Qc7 g7 Bc8 d7 Bd6 d8R Qc4 Nd2 Qc7 Bg2 Nf7 Nf1 Nc6 Ra2 Bb4 d6 Nh6 d7 Rh7 Bd5 Qd6 g8B Kb8 b7 Qg6 Bgf7 Nd4+ Kf2 f3 Ke3 f2 Kf4 Qc6 Kg5 f4 Nf3 Ne2 Rg8 Ng3 d8N Bd7 Nh4 Be6 Bge4 f3 Kf6 Nh5+ Kg6 Ng3 Ne3 f1B Ng4 f2 Kf6 Bc8+ Ne6 Be2 Qf1 Bd1 Qc4 f1R+ Kg6 Qc5 Ng5 Rf4 Rg7 Be6 Rg8+ Kc7 b8R Qc6 Rb6 Rd8 Rb8 Rd7 b6+ Kd6 b7 Kc7 Rf1 h1R Nh2 Rg4 Rf5 Re1 Kf6 Nh1 Rg6 Rh8 Kg7 Rh7+ Kf8 Rf4 Ngf3 Rg4 Rh5 Rf4 Ng5 Rg4 Bb2 c1B Rg8 Bcd2 Bc1 Bd6 Ngf3 Rf4 Rg4 Bc3 Ng5 Bcb4 Bb1 Rd4 Bbe4 Be5 Ra8 Kb6 b8Q+ Rb7 Qe8 Kc7 Rd8 Bg3 Rd6 Bf4 Qd7+ Kb8 Bfg6 Qa6 Rb6 Bc7 Be8 Qb5 Bf7 Qc6 Rb5 Bc3 Rbb2 Bb4 Rb3
Qr3kq1/2R2Rn1/2bn2BB/K7/QBN1p1q1/2r1P1Q1/BrNq2rN/5r1Q b - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 cxd5 Bh6 axb5 fxg4 Rh3 g3 Rh2 g4 Rh1 Bg5 hxg5 Be6 Na3 Bf5 Nb1 Bc8 f4 h5 b4 c5 d4 e5 Kd2 a5 Kc3 c4 f5 h4 f6 h3 g6 h2 d6 g2 d7+ Kf8 d5 g3 g7+ Kf7 d6 a4 b6 a3 b5 a2 Kb4 c3 b7 c2 b6 Qc7 d8Q Ne7 g8B+ Kg6 d7 Rh7 f7 Kg7 Nd2 Rh3 Nc4 Na6+ Ka5 Rb8 Nf3 g1R Qe8 g2 d8Q Nf5 Qa4 Nd6 f8N Nc5 Ne6+ Kg6 Qe1 Bd7 Ned4 Qc8 Bh6 c1Q Nc2 Bc6 e3 e4 Bh7+ Kf7 Qd1 Qb2 Rc1 a1R Qh8 Ke7 Bg6 Ra3 Qe5+ Qe6 Qg3 Qg4 Be2 Ne6 Bf1 Rc8 b8B Ng7 b7 Kf8 Ba7 Rd8 b8Q Rc3 Qa8 Rb8 Bc5 Rh4 Bb4 Rh3 Nce1 Qd2 Nc2 Rh4 Bd3 Rf1 Rg1 h1R Nh2 Rf2 Rf1 g1Q Nb2 Qg2 Bc4 Rh5+ Bd5 Rg5 Nc4 Rg1 Ne5 Rgf5 Ba2 Rf7 Nc4 Rb7 Ba3 Rb2 Bb4 Rf7 Rf5 Rf1 Qdf3 Qg1 Qh1 Rf2 Re5 Rg2 Re7 Rf1 Rc7 Qgf2 Re7 Qf7 Rc7 Qg8 Rd1 Qde2 Rd5 Qe1 Re5 Qed1 Ree7 Qd2 Rf7+
4Bq1B/1pqRkbqN/N1BNr1n1/1P1QN2b/1q3b2/8/KQ2Q1Q1/3n1R1q b - - 0 1 illegal: No proof kernel
1bn1R2B/B5p1/k5b1/nbNB1Nr1/3qq3/R2R2P1/1QR1Q2N/NK1nq2n b - - 0 1 illegal: No proof kernel
7Q/b2k4/NpN1b1B1/1PQn2r1/1Nn2bbK/2R2BRb/2n1Bqb1/B1QQ4 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 d5 cxd5 Be7 Qc2 Bc5 Qd1 Bf8 a4 g5 hxg5 b6 a5 Na6 Rh4 Rb8 Rh6 Rb7 Rh1 Nb8 a6 Be7 axb7 a5 Ra4 Bc5 Ra1 Bf8 d6 f5 d4 c5 Kf2 a4 g4 c4 e4 h6 b4 a3 d7+ Ke7 Qd2 h5 g6 a2 e5 h4 d5 h3 d6+ Ke6 g7 c3 g5 h2 b5 f3 Kg3 c2 g6 f2 Nc3 Rh5 Nge2 Be7 Rg1 h1B Nd5 Bf6 Bb2 Ne7 Rc1 a1N Nb4 Na6 b8N Qf8 d8Q Nc5 d7 Bd5 Qc7 Rg5+ Kh4 f4 d8Q f3 N8a6 Ncb3 Qc5 Na5 Rg3 Nc4 g8Q+ Qf7 Bg2 f1B g7 f2 Qh8 Bf3 Qc3 Bg4 Qd1 Nd5 Be4 Bg2 Nd4+ Kd7 Ndc6 Ke6 Bg6 Bd8 Bd3 Bc7 Be2 Bb8 Qa3 Ba7 g8B Nf4 Bh7 Nd5 Bg6 B2h3 Be4 f1B Bh1 Qf2 Bhf3 Bfg2 Bc3 Kf5 e6 Bd7 e7 Ke6 e8B Bc8 Rb1 c1B Rb3 Bf4 Qac1 Nc2 Ba1 Bd7 Bg6 Bc8 Qcd4 Kd6 Re3 Bce6 Rc3 Kd7 Qc5
2B1nN2/4k3/QB2R1b1/N1q1Nq1p/1BqR3P/1nB1Q1bb/R1b2r2/2q3NK b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 a5 cxd5 b5 axb5 Ra6 Ra2 Rf6 Ra3 exf4 Ra1 f3 Qa4 f4 Qd1 Rf5 gxf5 Qf6 Nh3 Qg5 Ng1 Qd8 Kf2 c5 h4 h5 e4 g5 d4 a4 b4 c4 d6 a3 e5 g4 d5 a2 f6 c3 d7+ Kf7 b6 c2 e6+ Kg6 d6 Ne7 b7 Na6 b8B Kf5 b5 Nd5 b6 Qc7 d8R Qc4 b7 Ndc7 d7 Bd6 e7 Ke6 f7 Nc5 Ba3 c1Q Bb4 Ne8 Nd2 Rf8 Qa4 Nb3 Bh3 Q1c2 Qb5 Qf5 Qa6 Kf6 Re1 a1Q Rh2 Qac3 Bc7 Qc1 b8N Bb7 Rg2 Be4 Bb6 Bc2 Nc6 Bc7 Na5 Be5 Ne2 g3+ Kg1 f2+ Kh1 f1B Ng1 Bfd3 Ndf3 Bd6 Ne5 f3 Bd4 f2 Bdc3 f1B Rd2 Ke6 Ra8 Kf6 d8B Ke6 Bg4 Bh3 Bb6 Kf6 Rd8 Bb8 Rd4 g2+ Kh2 Qf3 Be6 Bg6 Bc8 Qf5 Rf2 Ng7 e8Q Bd6 Qc6 Ne8 Qe4 Ke7 Qe3 Rg8 f8N Rg7 Nf3 Rf7 Kg3 g1Q+ Rg2 Qgf1 Kh2 Qc5 Ng1 Qfc4 Kh1 Kf6 Nef3 Bg3 Ne5 Ke7 Rge2 Qd2 Ra1 Qc1 Ra4 Qfe6 Ra2 Rf2 Red2 Qf7 Rd6 Qff4 R2d4 Qf5 Re6+
4Q3/N1K2Rr1/N1QrRN2/2B2qp1/Qn1R2Pn/1n6/1Rbrq2Q/1Bn1k2r b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf6 h6 Bg7 hxg7 Kd7 Nf3 Ke7 Ng1 Ke8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 c5 e4+ Kb4 d4 a5 d6 f5 d7 h5 Kd6 f3 e5 f2 d5 h4 e6 a4 b6 h3 e7 g5 e8R a3 b7 f4 Ra2 c4 Nc3 f3 Be3 h2 Ne4 c3 Nf6 c2 Re6 c1N Ne2 Nb3 Nc3 Ra7 Nb5 Nh6 g8Q Na6 b8N Qe8 d8Q Rg7 Bd3 f1R Qd7 f2 Qc6 Nc1 Bb1 Bd7 Qdc2 Rd1 Rf1 h1R Na7 Rd2 b3 Rhh7 Rb2 a2 Qh8 Qf7 Qe8 a1N Qd1 Qg6 Bc5+ Kc3 b4 Qf5 b5 Nb4 b6 Nab3 b7 Rg6 Na6 Rhg7 b8Q Bc8 Rfe1 f1Q Qbc7 Qg2 Rf1 Qe2 Qb8 Bd7 Kc7 Bc8+ Qe7 Bb7 d6 Bc8 d7 Bb7 Qcd6 Be4 d8R Bd3 Qc6 Bc2 Rf8 Kd3 Rf7 Kc3 Qee8 Kd3 Re1 Kc3 Ng8 Kd3 Re4 Rd6 Nf6 Kc3 Qec8 Kd3 Rd4+ Ke3 Qe6+ Kf2 Qee8 Qb5 Qbb7 Qe5 Qe2+ Kg3 Qcd7 Nf5 Nc6 Nh4 Na7 Qf5 Qd5 Qbd3 Qa4 Qb5 Q2e5+ Kf2 Qdc6 Qf1 Ree4 Qe2 Qh2+ Ke1 Re6
1K2Bq2/3bq3/b1QRpNB1/5n2/1Q1b1N2/BQ1Q2Bn/1Rb1P2k/3qrqR1 b - - 0 1 legal: proof: c4 b5 g4 a5 h4 d5 cxd5 g5 f4 gxf4 a4 Nf6 axb5 Rg8 g5 Rh8 h5 Ra6 Kf2 Ng8 Ke1 Rg6 hxg6 Bh6 Kf2 Bg7 Ke1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 c5 b4 a4 g7 c4 b6 a3 b5 h4 g6 h3 b7 c3 b6 h2 Nd2 f3 Nh3 f5+ Kf4 c2 Bg2 f2 Ra2 f1B Rg1 h1B Be4 Nc6 Rb2 Nh6 g8B a2 g7 a1Q Bf7 Ng4 g8Q Qa8 Be8 Nf2 Qg2 Bg7 b8B+ Qc7 Bd3 Ba6 b7 e6 Qf3 Bfg2 Be4 Rh7 Qb3 Bh8 Qf1 Bf3 Qg2 Bh5 Qgf3 Ne7 Qfc3 Bg6 Bd3 Ng8 Qcc4 Nh6 Qc6+ Ke7+ d6+ Kf6 d5 Qe7 d7 Rf7 Ke3 f4+ Kd4 f3 d6 Nf5+ Kc5 Ke5 Nf4 Nh3 Kb6 f2 Kc7 f1Q Ne4 Bg7 Nf6 Rf8 Bd2 c1Q Bb4 Qcd1 Ba3 Be4 Bb1 Bc2 Kc8 Bh8 d8Q Rg8 Qd3 Bh5 Qdb6 Bf3 Qbb3 Rg6 Qcb6 Bc6 Q3b4 Bd7+ Kc7 Rg2 Qc6 Rh2 Qbb3 Rh1 Qb4 Qa7 Qbb3 Qf8 Qb4 Bc8 d7 Bg7 d8R Bd7 Qbb3 Qac5 Ba7 Qb4 b8Q Qbe7 Q8b4 Nd6 Rg2 Qg1 Qg6 Be4 N4h5 Bdc8+ Kb8 Qf2 Nh7 Re1 Rg4 Qf1 Rg1 Bf6 Bf2 Bg7 Ng3 Kf4 Bc2 Bd4 Nf6 Bh1 Bf5 Be4 Qh7 Bc2 Qg6 Nc4 Rd6 Bd7 Bd3 Ne3 Qge4+ Kg5 Qf3 Kh4 Bg6 Nf5 Qfe3 Nf4 Qed3 Kh3 Ngh5+ Kh2 Bh4 Nh3 Nf4 Be3 Bf2 Bd4 Bg3+
1Q1Bb1B1/R1bNN1nk/1QQp1N2/2nn1rr1/1bB5/8/nQ1P1n1K/2R2N1b b - - 0 1 illegal: No possible last move
2Nrr3/3n3N/R4nnb/QN1r1B2/B4B1p/2K3P1/1pRQ1Rkb/3qR1Nb b - - 0 1 illegal: No possible last move, all moves rejected
Qb5B/1r4qB/2npPNbr/Rp1R2NB/R2N3r/3k2nQ/2R2b2/1N1K2n1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 e4 Ke7 a4 Ke6 h4 g5 c4 b5 c6 f5 h6 d6 c5 f4 h5 f3 c7 b3 h7 g4 a5 b2 h6 g3 c6 g2 a6 Qe7 a7 Qe8 Rh5 Qe7 Ra5 Qg7 Qb3+ Ke7 e6 Kf6 e5+ Kg6 e7 f2+ Kd1 Nd7 e8N Rb8 a8R Be7 Nf6 Bd8 Qh3 Rb7 Be2 f1N Nf3 g1B Nd4 Ng3 e6 Bf2 Rd5 Ne5 R8a7 Bd7 c8R Bb6 c7 Ne7 Bf4 Nf3 Be5 Ng1 Bh5+ Kg5 Ra4 Nc6 R7a5 Rf8 h8Q Be8 h7 Bg6 Qg8 Ba7 h8N Rf7 Rf8 Re7 c8B Bb8 Bd7 Rf7 Rc8 Rf8 Be8 Rff7 Nd7 Rf4 Nf6 Rh4 Bf7 Nd8 Rc2 Nc6 Be2 Rh6 Qc8 Rh4 Bg8 Rh6 Bh7 Rh4 Ng4 Rh6 Bf6+ Kf4 Nf7 Ke4 Bf3+ Kd3 Ng5 Rd7 Qa6 Rb7 Qa8 Rh4 Be5 Rh6 Nf6 Rh4 Na3 Rh6 Bh5 b1R+ Rc1 Rb2 Nb1 Re2 Rcc4 Re4 Rc2 Rh4 Ne8 Qc7 Bh8 Qg7 Nf6
b3Qrb1/6q1/1pBp1k2/n1NP1R1K/rQ2Q3/1Br1Rn2/B3n3/N1N1BQ1b b - - 0 1 illegal: No extended proof kernel
N1K2Nk1/q2p1n2/1Qb5/r2Qp3/B3R3/R1b2rB1/b1PNr1NR/nRQ1n3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 g5 Kc4 e5 Kd5 a5 b4 g4 f4 g3 h4 d3 b6 d2 f6 a4 f5 a3 b5 a2 h6 g2 h7 Nc6 b7 Be7 b8N Bb4 h5 Nh6 b6 Qe7 b7 Nd8 Nh3 g1R Nf4 Kf8 f7 Kg7 f8N Nhf7 h6+ Kf6 Na6 Ng5 b8Q Kf7 f6 Nh3 Nc7 Ra6 Na8 Ng5 Bb5 Rg2 Qb6 Rf2 Ng2 Nh3 Ba4 Rf3 Rh2 Rg8 h8R Ng5 h7 Bc3 Qh1 d1B Nd2 Qe8 Kd6 Be2 Kc7 Ra5 Rb1 a1N Rh4 Bca6 Re4 Bab5 Kc8 Bc6 Qe1 Rg7 Rg8 Bd3 h8R Bc4 Rh2 Ba2 Rgh8 Rg6 R8h3 Kg8 Qee3 Qe7 Qd3 Qa3 f7+ Kg7 Qd5 Qc5 Qc7 Qa7 Qb6 Rgf6 Rg3 Rf2 Rd3 Re2 Rde3 Nf3 Rd3 Bb2 Ra3 Ne1 Ne6+ Kg6 f8Q Nd3 Nf1 Bc3 Qh6+ Kf7 Bf4 Ne1 Bg3 Rf3 Qc1 Kg8 Nf8+ Nf7 Nd2
n4N2/Qr1p4/5PNQ/b2RB2n/1BQ1bnqB/3p1bQ1/B3k2K/Rr2R1r1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 b4 h5 g4 e5 f4 a5 Kf2 e4 Kg3 h4+ Kh2 a4 f6 Ke6 f7 a3 f5+ Ke5 c5 e3 f6 Kf4 c6 h3 c7 a2 g6 Rh5 g5 Ra7 g7 Ra6 b6 Ne7 g8R Bg7 f8B Nbc6 b7 Na5 b8Q Rd6 g6 Nf5 b5 Rb6 Ne2+ Kf3 Nbc3 Ng3 Nf4+ e2 Ne6 Bh6 g7 Nc4 Bg5 Rb7 Qc1 e1N b6 Nd3 Ne2 Nf4 Bh4 Rb5 Bb4 Ngh5 Qa7 d3 Nf8 Rg5 Rg1 Rg3 Bg2+ Kf2 Re1 Bg5 Kh1 h2 Bd5 Qe7 Rh8 Qe6 g8Q Qf5 Rh7 Qg4 Re7 Bh6 Re5 Bg5 Be6 Kf3 Rd5 Rg2 Rb1 a1R Qd2 Bh6 Rbd1 Rb1 Qg5 Rb8 b7 Nb6 Bg8 Na8 Bf7 Ne6 Nf4 Rg3 N4g6 Nef4 Nh7 Bf8 Qc1 Bc5 Nhf8 Bb6 Qh6 Ba5 Qcc5 Rb2 Ra1 Rb3 Qg1 Rb1 Rf1+ Ke2 Rc1 Re3 Qg3 Re5 Rf1 Rg5 Rd1 Ne6 Kg2 h1B+ Kh2 Be4 Rg1 Rf5 Rd1 Rf1 Bg8 Rg1 Bf7 Nef4 Rf1 Nb6 Rc1 Ra8 b8B Bb7 c8Q Bc6 Be5 Rb8 Qca6 Na8 Qc4 Rb7 Rd4 Bh1 Qcc5 Re1 Ba2 Rg1 Qc4 Bce4 Rd5 Bhf3 Re1+
6N1/2PbNrB1/1B1BNbbr/2prp2B/kn4KQ/qQ3n1R/N7/R5Qn b - - 0 1 illegal: No proof kernel
B2RrR2/pk3b2/b3n3/1n4RP/r1n1p2N/B3B2N/KQ3r1N/b1Qq2RN b - - 0 1 illegal: No possible last move
K1Bn1Nq1/1Q1q2Qb/3RBbN1/2rn4/1bR2BQQ/k1pN4/1r3Ppn/5N2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kd6 a4 g5 h4 c5 f6 e5 f7 b5 a5 g4 h6 c4 a6 b3 h5 g3 h7 c3 a7 b4 h6 b2 Rh4 b3 Bc4 g2 Nd2 b1N Qg4 b2 Nf1 Qa5 Bf4 Bd7 Ne2 Qc7 Ra6+ Nc6 Nc1 Rb8 a8B Ne7 Bb7 Be6 Ba2 Qd7 Bc8 Rb4 Nd3 Bf5+ Kf3 Rg8 h8N Bh7 Ng6 Nd2+ Ke3 Nf3 Ke4 b1Q Bb3 Bg7 f8N Bf6 Ba2 Rh8 Bc4 Qb3 Rb6 Bg8 h7 Nh2 Ra6 Qa2 Rb6 Rb2 Bb3 Be6 Ra6 Rg8 h8Q Rg7 Qh6 Bg8 Bc4 Rh7 Qg7 Rh5 Rb6 Bh7 Ra6 Kc7 Bb3 Nd8 d6+ Kb8 Bf7 Nd5 Be6 Qb3 Rc6 Ka7 Rc4 Kb6 Rh3 Qdb5 d7 Ka5 Re3 Qc6 Re2 Be7 Rd2 Bb4 Rd1 Ka4 Rd2 Ne7+ d5 Ka3 Rd1 Qc7 d6 Nd5 Rd2 Nb7 d8Q Qd7 Qb6 Nd8 Qb7 Qa2 Nc5 Rg5 Kd3 e4+ Kd4 e3 Nd3 e2 Ke4 Qc7 d7 e1B Rd1 Bd2 Kd4 Nf7 d8Q Qd7 Qe7 Rh5 Qeh4 Be3+ Ke4 Bd4 Rd2 Bf6 Rd1 Re5+ Kd4 Ba5 Kc5 Nd8 Rd2 Nc6 Rd1 Bb4+ Kb5 Nd8+ Ka6 Nc7+ Ka7 Rc5 Rd2 Nd5 Ka8 Qb1 Ne1 Qf5 Nd3 Qg5 Ne7 Qg6 Rd1 Qf7 Neg6 Qg8 Nde5 Ne3 Rd6 Nd5 Nd3
K3NB2/N2B1R2/1b1r4/2Q2Qk1/1RN1p3/1qB3nb/bpRP1Rnq/1nB3r1 b - - 0 1 illegal: No possible last move, all moves rejected
n2n1r2/k4Rq1/1q1nr1BQ/1b2R2R/2pN3b/P4KBR/3QQpN1/bBQ5 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 e4 c5 d4 Kc7 h4 Kb6 h6 f5 h5 g5 h7 c4 h6 b3 d6 f4 d5 g4 a3 b2 d7 f3 d6 Qc7 d8R Qc6 d7 Bd6 e6 Ra6 e7 Ka7 e8B b5 e5 b4 e6 b3 e7 Qb7 Bd3 Nc6 Nd2 b1Q Rh5 b2 Nh3 Nf6 Nf4 Nd5 Nb3 Nb6 Ng2 Rf8 h8Q Be5 h7 Na8 Bf4 g3+ Ke3 Bf6 Nd4 Bh4 Beg6 f2 Re8 Nd8 Qc1 Re6+ Qe5 Qc7 h8Q Ba6 Kf3 Bb5 Qe2 Qe5 Qh6 Qg7 Ne3 g2 Bdf5 g1B Ng2 Qc2 Bg3 b1N Qed2 Nc3 Qe2 Rf7 Rf8 Bh2 e8R Ne4 Rb1 Qa2 Rb3 Qb1 Rd3 Rff6 Rf7 Nd6 Re3 Qb4 Rh8 Qa5 Re5 Qb6 Rh7 Re8 Rh8 Rfe6 Bc2 Rf8 Bb1 Be7 Bh4 Bf4 Bg3 Bd2 Rh3 Bc3 Rh7 Ba1 Rh8 N8b7 d8Q Bh4 Qdg5 Bb2 Qgd2 Ba1 Rff5 Nd8 Rh7 Qgc7 Rhf7 Qe7 Rh5 Qd7 Rf6 Qg7 Rf7+
RrB1NQR1/4b2n/R1b1rQBn/1nR1B3/K1pN2p1/2r1P2N/k2q4/qN6 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 b4 Kd7 h4 f5 d4 a5 Kd2 g5 Kc3 c5 Kb3 f4 e6+ Kd6 b6 g3 b7 c4+ Ka4 g2 e3 f3 b5 f2 b6 Ra6 e7 Rh7 e8B Be7 h5 Nh6 Bb2 Rg7 Bg6 Rh7 Nh3 g1N Qf3 Qg8 Qf8 Nd7 b8N Rh8 b7 Nf6 Nc6 Nh7 b8N Qf7 Nd7 Qe8 Nf6 Qd8 Be2 f1R Bg4 Bb7 Bc8 g4 Ra3 Ng8 h6 Ne2 Rh2 Rb6 Rf2 Rd1 Rf5 Rd3 Ba1 Rc3 Rh5 Ng5 h7 Nh6 Ra2 Rg8 h8R Nh7 Bb2 Nf4 Re5 Ne6 Rf5 Nc7 Ba1 Rg7 Rg8 Nb5 Rh5 Ba8 Ra3 Rb8 Bb2 Kc7 d6+ Kb6 d5 Kc5 Nd4 Bc6 d7 Rf7 Ne8 Rf6 Rf5 Re6 Qf6 Qc7 d8R Qh2 Rf3 Qd2 d6 Kd5 Rf5+ Ke4 d7 Kd3 Nf3 Kc2 Qf8 Rb3 Bf6 Rc3 Rc5+ Kc1 Be5 Kb2 Rb3+ Ka1 Nd4 Ka2 Ra3+ Kb2 Ba6 Rb6 Ra8 Rb8 d8Q Bd6 Qdf6 Be7 Rb3+ Ka1 Bc8 Na7+ Ka3 a4 Bg3 Nb5+ Kb4 a3 Be5 a2 Rba3 Kb2 R3a6 a1Q Na3 Ka2 Nb1+ Na3+ Ka5 Nb5 Ka4
2bQRQBr/6bk/B3N1q1/1q3qrp/p2RPnbQ/1Q2BRN1/6Bn/2K5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 f5 g4 Kf7 d4 Kg6 Kd2 h5 b4 c5 b6 a5 b7 f3 b5 c4 b6 f4 d6 a4 d5 f2 d7 f3 d6 Kh7 g6+ Kg7 g5 Qf6 d8Q Ra6 d7 Ne7 Qb3 Ra7 Ne2 Nec6 Nd4 Be7 Rh3 Ba3 Nc3 Bd6 Bg2 f1Q Nce2 f2 Rf3 Bf8 Ng3 Na6 b8R Ne5 b7 Nc5 Ne6+ Kg8 g7 c3+ Kc2 Ncd3 Be3 Ra5 Rd1 Nf4 Rd4 Qb5 Kc1 f1B Ra8 c2 b8Q Kh7 g8B+ Kg6 Qe7 Bg7 d8Q Be2 Bf7+ Kh7 Qbd6 Qf5 g6+ Kh6 Qef8 Ng4 Qh4 Nh2 Qdd8 Bd1 Rf2 Bg4 Rf3 Qe8 Ra7 Re5 Re7 Qb5 Re8 Qf6 Nc5 Rg5 Ne6 Qff5 Qfd6 Be5 g7 Qg6 g8B Bg7 Qf8 Qbf5 Nc7 Qb5 Bc4 Qbf5 Bgf7 Kh7 Ba6 Qb5 Kb2 Qbf5 Ne6 c1Q+ Ka2 Qcc5 Kb1 Qce5 Kc1 Qb5 Bg8+
3q1N1k/1NQ4q/1rQ2r1n/rbnPQ3/1K5p/1BR5/RpNbRB2/N1Q1q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 Kd2 Kg7 a4 e5 g4 b5 f4 c5 f6+ Kg6 a5 h5 d6 Kh7 d7 h4 f5 e4 a6 b3 Kc3 c4 f7 b2 a7 e3 d5 e2 f6 e1R Be3 Ba6 Na3 b1Q Rh3 Qc1+ Nc2 Re2 Bf2 Bc8 g6+ Kh6 g7 Kh7 g5 Qb1 g6+ Kh6 Ra2 Ne7 g8R Re6 g7 Kh7 Nf3 Rc6 Na1 Na6 Nd4 Nf5 Ndc2 Nc5 Qc1 Ba6 Be2 Bd6 f8Q Bf4 f7 Rb6 Qd6 Nh6 Re8 Rf8 Bd1 Bg5 Qe5 b4+ Kd4 b3 Kc3 Bb5 Kb4 b2 Rc3 Bd2 Re7 Rc8 a8Q Rcc6 Qb7 Rf6 Qc6 Re8 f8N+ Kg8 Na3 Qh7 Re6 Re7 Qec7 Re8 Re2 Ree6 Ba4 Ra6 Bb3 Ra5 Qe5 Rd6 Qc7 Rb6 N3c2 Bg5 Rf3 c3 Qc6 Bd2 Qec7 Qe7 d8N Qe8 Nb7 Qd8 Ne1 c2+ Rc3 Nd7 Qb1 c1Q Nec2 Qe1 Qc1 Nc5 Qe5 Re6 Qh2 Kf7 g8Q+ Kf6 Qgg2 Rd6 Qgh3 Kg7 Qf5 Rf6 Qhc7+ Kh8 Qfe5
r3qN2/5n2/3Q2B1/RrBp1r1Q/Kb3N1Q/2N1RQnn/2pPR2q/3N1bk1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 a4 Nc6 c3 Nd4 cxb4 Nc2+ Ke2 Rh6 a5 Rh8 a6 Bxa6+ b5 Bc8 Kd3 Kf7 Kc3 Kf6 Kb3 Kg5 h4+ Kf4 b6 e5 f6 a5 b7 c5 b8R d5 h6 g5 h7 g4 f7 e4 h5 e3 h6 c4+ Ka4 g3 b4 c3 b5 g2 b6 e2 b7 e1R Bd3 Qc7 Ne2+ Kf3 Bg6 g1N Ba3 Kg2 f4 Kf1 f5 Be7 f8Q Bb4 f6 Bh3 f7 Ne3 Re8 c2 b8Q Qh2 Nec3 Nf5 Qh5 Ng3 Qbd6 Re5 Nd1 Rf5 Re3 Rb8 Nbc3 Rb5 Qe8 Bg2 f8N Bh3 Qf7 Bg2 Nb2+ Kf2 Qh4 Nh3 Rhe1 Bf1 Nbd1+ Kg1 R1e2 Ne7 Bb2 Nc6 Ba3 Nd8 Qff6 Rg8 h8Q Nf7 h7 Qg2 Ne6 Ra8 Qe8 Qf2 h8N Qh2 Nf8 Rg5 Qf3 Rf5 Kb3 a4+ Ka2 Ba5 Bc5 a3 Qee5 Bb4 Kb3 Rd8 Ka4 a2 Bh5 Rdb8 Nhg6 Rc8 Nf4 Ra8+ Kb3 Ra4 Bg6 Ra8 Rb1 a1Q Rb2 Nh6 Ra2 Nf7 Ra5 Qb1+ Ka4 Qc1 Nb1 Qb2 Qeh8 Qe5 Q8h5 Qe8 Nbc3
2q1n3/1B2RrBr/K4b2/2QpRBnQ/N1B3R1/P4R1p/1kb1q3/1N1q1n1Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Nc3 Kf7 Kd2 h5 Kd3 e5 Kc4 d5+ Kb5 e4 f4 e3 g4 e2 a3 e1N f6 Ke6 g6 b6 g7 h4 f7 b3 c6 b2 g5 b1Q+ Bb2 h3 g6 Nd3 c7 Nf6 g8Q Nb4 f5+ Ke5 g7 Ra4 Nf3+ Kf4 Nd2 Ke5 Qh7 Kd4 g8R Qa2 Qhh5 Rh7 Rg4+ Ne4 f6 Be7 f8R Nd7 f7 Ra7 Rc1 Nf6 Na4+ Ke3 c4 Ng5 c5 Ne8 c6 Bf5 c8B Nc2 c7 Rb7 Be6 Qc8 Ka6 b5 Rhg1 b4 Bg7 b3 Bc4 b2 Bd7 b1Q Re1+ Kf2 Re6 Ne3 Qh1 Nf1 Rce1 Qd1 Nb1 Bg6 R1e3 Qae2 R3e5 Ke1 Bc6 Bc2 Bd7 Qd8 c8B Rc7 Bb7 Qc8 Nbc3 Kd2 Nb1+ Kc1 Rf6 Nd6 Re8 Bd8 f8Q Be7 Rff4 Bf6 Bf5 Rf7 R8e6 Ne8 Qc5 Ne3 Re7 Nf1 Nac3 Kb2 Rf2 Ne4 Rf3 Ng5 Na4+
4R2N/1n1k4/Nnrnq3/b2p3P/r3RQ2/Qp1B2Q1/2q1BK1N/2b1NQBb b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 d5 a4 b5 h4 e5 f4 g5 h6 e4 h7 g4 h5 g3 c6 e3 f6 b3 f5 g2 f7+ Ke7 f6+ Kd6 c7 e2 a5 b4 c5+ Kd7 a6 b2 a7 b3 c6+ Kd6 Be3 Ke6 Rh4 Bg7 f8Q Nh6 f7 Bc3+ Nd2 b1Q Qa3 Be5 f8Q Qd7 Ndf3 Bf4 Nh2 Nf5 Kf2 e1N Be2 Qc2 Ngf3 Nd6 Qd3 Rg8 h8N Rg6 Qd2 Ba6 c8B Bd3 c7 Be4 Bca6 Qf7 c8Q+ Nd7 Qcd8 Nb6 Qg5 Kd7 Bad3 Qe6 Qg3 Bg5 Bd4 Bh6 Qd1 Bc1 Qff4 Rh6 Rg4 Rf6 Rg8 Rh6 Re8 g1B+ Kf1 Bge3 Bc5 Bed2 Bg1 Ba5 Kf2 Ng2 Ne1 Nb7 Ra2 Nh4 Ra1 Bh1 Ra2 Rd8 a8N Nf5 Nc7 Nfd6 Na6 Rc8 Ra1 Rc4 Ra2 Ra4 Rb2 Qb1 Rc2 Rf6 Rc4 Qc2 Re4 Rf8 Rb8 Rc8 Ra8 Rc6 Re8 Bb2 Qda1 Bc1 Qaf6 Rc7 Q6f5 Rcc4 Qfh3 Rc6 Qf1
1R1B3b/QN2r1B1/K1NnN1b1/Q1P2k1q/Q1n2r1p/1q6/1pB1NB2/3bR2r b - - 0 1 illegal: No possible last move, all moves rejected
2Qnn2q/B2Q1QQb/6R1/n1pN2br/RB6/rR1BpPRq/r6k/4K1N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 h5 f6 a5 f7 e5 f3 c5 g5 h3 g6 a4 b6 a3 g7 h4 b7 e4 b5 a2 b6 h2 Qb3 e3 Bd2 h3 Bb4 Ra3 Bd3 Rh7 Nc3 Nc6 b8R Rh5 b7 Nf6 g8R Be7 f8Q Bf5 Rg3 Bh7 Qg7 Qh8 Rg8 Ne8 b8B+ Nc7 Rb1 a1N Ba7 Ne8 Qc4 Nd8 Rb3 Kd7 d6 Ra2 Rb1 Nb3 Nd5 Ke6 d7 Bg5 Rb2 Na5 Rb3 Nf7 d8Q Ra3 Qb8 Nd8 Qc8+ Kd6 Ne2 Ra2 Rf1 h1Q Ng1 h2 Rf2 Qg2 Rd2 h1R Rd1 Rc2 Ra1 Qh3 Ra4 Rch2 Ne7 Rb2 Qcf7 Ra2 d5 Ra3 Be4 Rh2 Bd3 Nf6 Qd7+ Ke5 d6 Kf4 Qc8 Rha2 d7 Bh6 Rg6 Bg5 Nd5+ Kg3 Nf4 Ne8 Nd5 Ndb7 d8Q Kh2 Qdd7 Nd8 Qa1 Bf6 Rg3 Be7 R8g6 Bg5 Qag7
3kNQ2/6Nn/RQ6/1PK2NRq/2Bpqb1p/2Q1rb1Q/2n1R2q/3RrbB1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 b6 a5 Ke2 e5 Kd3 d5 b4 h5 f4 a4 c4 a3 g4 h4 b7 a2 f6 Rh7 c5 Ne7 c6 Ra7 f5 Qb6 g6 Be6 b5 Rh6 f7+ Kd8 c7+ Kd7 g7 Qd6 g8R Nec6 c8Q+ Ke7 g5 Rh7 g6 Ra3+ Nc3 Bh6 f8N Nd7 b8Q Nf6 g7 Bd7 Be3 e4+ Kc2 Bg5 Qb6 Qh2+ Nge2 Bf4 Ne6 d3+ Kd2 d4 Re8+ Kd6 g8R Rg7 Qb3 Rg1 Rg5 Nh7 Ng7 Be6 f6 Bh3 f7 Bg2 Qa5 Nb4 Nd5 Bh3 Qb8+ Kd7 f8Q Bg2 Nc7 Bh3 Rc1 a1Q Rc6 Nc2 Ra6 Bg2 Qbb6 Qc3+ Kd1 d2 Ng3 Qd3 Bf2 e3 N3f5 Qc4 Qab4 Qf7 Ke2 d1B+ Kd3 Qh5 Kc4 e2 Qh3 e1Q Kc5 Bdf3 Bc4 Qe2 Re6 Rc1 Re1 Bf1 Bg1 Qd3 R6e3 Qe4 R3e2 Re3 Qc3 Rd1 Nce8 Rb1 Rd2 Rc1 Ree2 Re1 Rd1 Kc8 Qg6 Kd8 Qb6+
2R4b/4b2R/2nR4/1p1QqqN1/N3rrQP/k3RBBr/b1pQ2K1/Q2B1n2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 Kf2 Kd6 a4 Kc5 d4+ Kd6 f6 e5 h6 c5 f5 b5 h7 g5 a5 c4 a6 g4 a7 g3+ Kg2 e4 f7 c3 f6 e3 Nh3 b3 Ra6+ Nc6 Ng5 c2 Nc3 b2 Qg4 b1R Be2 Ne7 Bd1 e2 Na4 e1Q Bf4+ Qe5 h4 Be6 Rh3 Rb8 a8B Bg7 f8R Nf5 f7 Qf6 Rc8 Re8 h8Q Rb3 f8R Rb7 Rg8 Rf7 Bb7 Bf8 Rg7 Be7 Rh7 Ra3 Kg1 g2 Re3 Qg6 Bg3 Qh5 Kf2 g1B+ Kg2 Bf2 Qg7 Be1 Qf6 Bc3 Ba8 Ng7 Qf1 Rf4 Qh1 Nf5 Rb6 Kd7 d6 Ba2 d5 Qg6 Qe1 Bd4 Qc3 Qge6 Qa1 Rd3 Bf2 Ng3 Be1 Nf1 Bg3 Q5f5 Bb7 Bh8 Ra6 Qee5 Rb6 Rd8 Ba8 Ke8 d7+ Kf8 d6 Re8 d8Q Ra3 d7 Rc3 Rh6 Rd3 Nh7+ Kf7 Rh5 Ke6 Ng5+ Kd5 Rh7 Kc4 Ra6 Kb4 Bb7 Na7 Rd6 Ka3 Bbf3 Nc6 Qa5 Rc3 d8Q Qfe4 Bh2 Qc4 Rf6 Qd6 Ree6 Qcd3 Bd5 Bf8 Qd7 Rb3 Qd2 Qf5 Re1 Rh3 B5f3 Qdd5 Bg3 Ree4 Rg6 Qd4 Qd5 Be7 Rd6 Qde5 Re3+
1qQ1kb2/n3B1RR/8/P3rn2/qrp1b3/1B1BB2Q/1KQp1nN1/N3N1rN b - - 0 1 illegal: No proof kernel
RQbqk3/n2BqnrR/1B1QBr2/pR6/n3K1N1/2b2P2/5p2/Q1QqNB2 b - - 0 1 illegal: No possible last move, all moves rejected
RQQB4/1B3q2/bn2nR1R/prN1R3/3qP3/1Nprb2n/2k1N2q/1B3K1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 b4 Kd7 e4 Kd6 d4 f5 g4 a5 g6 h5 g5 c5 b6 c4 b7 f3 g7 f4 b5 c3 g6 h4 b6 h3 Bg2 h2 Nd2 Ne7 g8B Qd7 g7 Nbc6 b8R Rh5 b7 Ra6 Ra8 Qc7 b8Q f2+ Ke2 Kd7 d6 Nd8 Ba2 Kc6 g8B Bh6 d5+ Kc5 d7 Kd4 d6 Rb5 Bgd5 Bb7 Bc6 Nd5 Nb3+ Kc4 Qd2 Ne6 d8N Rab6 d7 Ba6 Nb7 f3+ Kd1 Qd6 d8R f1N Ke1 f2+ Ke2 Nfe3 N7c5 Ng4 Bb7 Rc6 Rf8 Nb6 Rf5 Rc8 Rg5 Rd8 Re5 Qd7 Qdd6 Bd2 Qf8 Bg5 Kf3 f1Q+ Kg3 Qd2 Ne2 Qf7 Rb1 Rd6 Qfc8 Nf2 Bf3 Qe3 Kg2 Rd2 Rf1 Qd4 Ra1 Rd1 Bd2 Bh6 Bg5 Rd2 Bf6 Be3 Bd8 Rd1 Rh1 Rd2 Raf1 Rd1 Nd7+ Kd3 Ndc5+ Kc2 Rfg1 Rd3 Kf1 Qh7 Rg6 Qg7 Rf6 Qf7 Rg1 h1Q Rh6 Qh4 Rgg6 Qhf4 Bh1 Qh2 Rf6 Nh3 Bb1+
1br1BR2/qN4B1/1r3BR1/p1PQ4/Qbq3p1/Rb1Qq2k/2N3Qn/Kn3R2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 Kc2 a5 f4 d5 b4 g5 Kb2 e5 h4 d3 c5 g4 h6 d4 h7 e4 h5 e3 b6 e2 b7 e1B h6 d2 b5 d3 b6 Bd7 Ne2 Bh4 Ng3 Qc7 Qa4 d1Q Ra3 d2 Ka1 Na6 b8Q Bd6 b7 Ra7 Bb2+ Be5 Qd8+ Ne7 b8R Bb5 Qd3 Bd7 Rb6+ Be6 Be2 Nb8 Rf1 Rc8 h8Q+ Kf7 f6 Qc2 f5 d1Q h7 Qdd2 Bc3 Nd5 Qd8 Ra6 h8B Nc6 Ne4 Nd4 Bg7 Nf3 Bb2 Nc3 Q8d5 Be1 Nd6+ Kg8 f7+ Kh7 f8R Qa7 Bf6 Kh6 Nb7 Kh5 Bg7 Kh4 f6 Bc7 f7 Nh2 Qg2 Bc4 Rg6 Rb6 Bf3 Qe3 Bc6 Bb8 Be8 Bb3 Qgd5 Na2 Bbf6+ Kg3 Rh8 Qe2 f8Q Nc3 Qe7 Qc2 Rf8 Kh3 Qee4 Qc1 Ra2 Qc2 Na3 Nb1 Qh1 Qc4 Nc2 Bd2 Ra3 Bb4 Qhg2#
B1k1N3/2N1qqn1/1N1n1q1P/Qb3n2/R4r1p/B1R3rN/pbB3R1/3KB2Q b - - 0 1 illegal: No proof kernel
b2RR2b/k2B3n/2r1q1Bp/1qQq4/N1R1P2K/3N1pQ1/b4QBn/r1B2Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Ra4 Kd7 Kf2 c5 b4 Kc7 d4 Kb7 e4 a5 g4 f5 d6 f3 Kg3 c4 b6 f2 d7 c3 b5 c2 g6 Ne7 g5 Rg8 g7 Nec6 g6 Na7 d5 Rh8 g8B Nac6 d6 Ne5 g7 Ng6 Bf4 c1Q Nh3 Be7 Na3 Qc5 Nc4 Ra7 Be6 Nh4 g8B Bf6 Bc1 Nf3 Bg2 f1B Nf2 f4+ Kh3 Bd3 Bgf7 Bb1 Qf1 Ra6 Rb4 a4 Be8 Rf8 Bg6 a3 Rh2 Qe7 d8Q Nd7 Bg4 Kb8 b7 a2 Qb6 Qd5 Qc5 a1Q Rh1 Rc6 Ra4 Nb6 d7 Qb2 Rh2 Rf7 d8R Nd7 Be6 Nf8 Bef5 Qed6 Kg4 Rfc7 Bd7 Qe7 Rh5 h6 Re5 Qed6 Ree8 Bh8 Kh3 Nh2 Kh4 Q6e6 Rb4 f3 Nd3 Nh7 Qcf2 Rc5 Ra4 Qdd4 Rb4 Ka7 b6+ Ka6 b8Q Ra5 b7 Qdd5 Qc5 Rc6 Qg3 Ra1 b8Q Bb7 Qgf2 Ba8 Nb6 Ba2 Rc4 Qb5 Qbg3 Ka7 Na4+
1QQ1R3/1q1r2n1/1N4pK/5R1Q/1b1b1N2/1NqRn1Pn/1rqB3p/Q1RB2k1 b - - 0 1 illegal: No extended proof kernel
2n5/1bK3R1/r1BRN1p1/2NR1rB1/nb1R3Q/1N2p1Q1/1k2NqPq/4Qn1r b - - 0 1 legal: proof: e4 d5 a4 b5 axb5 f5 exf5 Qd6 c4 Qg3 cxd5 Qxh2 Ke2 Kf7 Ke3 Kf6 Ke4 a5 f4 e5 d4 c5 b4 h5 b6 h4 d6 a4 Kd5 c4 b5 h3 b7 e4 b6 c3 d7 a3 d8R g6 Nd2 a2 Rd6+ Kf7 f6 c2 f5 Rh5 Bb5 Rg5 Ne2 Qg1 Bc6 h2 Qe1 Nd7 b8Q Rg3 b7 Rc3 Nb3 Nc5 Bg5 e3 Rd1 a1N Ke5 c1R d5 Rc4 Rd4 Qf2 Qa7 Rd1 b8Q+ Bb7 Qa4 Ne7 Rf1 h1Q Qc7 Kg8 f7+ Kg7 Qb8 Ra6 f6+ Kh7 Qab4 Na4 Ke6 Qhg1 Kd7 Nc8 Kc7 Rc5 Qc4 Be7 f8N+ Kg8 f7+ Kg7 Nd7 Qh2 f8N Rb1 Na5 Nb3 Ne6+ Kf7 Rh1 Nd2 Nb3 Nf1 Qcb4 Rb5 Ndc5 Rba5 Bf4 Kf6 Bg5+ Ke5 Qc4 Qhg3 Rh7 Qh2 Rg7 Bf8 Rd8 Rc1 d6 Rb5 d7 Rd1 Ne4 Bb4 N4c5 Kf5+ Rf4+ Ke5 Ne4 Bc3 Qd2 Rb4 N4c5 Ng3 Rh4 Rf1 Qe1 Rh1 Qg4 Rf4 Qh5 Ba8 Qb4 Rf5 Qbg4 Nf1 Qf3 Bb7 Qg3+ Rf4 Rg4 Bd2 Qhh4 Bb4 Bb5 Kd5 Bc6+ Kc4 Rdg8 Rd4 d8R Re4 Rd5 Rf4 N6d4 Rf5 Rgd8 Ra7 R8d6 Ra6 Nd7 Kd3 Ne6+ Kc2 Rgd4 Kb2 Ndc5
Q3N2R/rR3K1b/nbnB1pB1/3N4/3b1qq1/R1p3q1/r3PR2/kB2Q1BN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 h5 d4 c5 g4 a5 b6 a4 d6 h4 b7 f3 d7 f2 g6 h3 d5 h2 d6 a3 b5 a2 b6 Qh4 d8R Be6 g7 Nf6 g8B Qh3 d7 Ra7 g5 Qh4 g6 Nh5 g7 Bf5 Bh7 Be7 g8N Nf6 Nc3 Nh5 Be3 Ng3 Bh3 f1Q Bg6 Qf2 Qe1 Kb3 Nf6 Kb2 Ne8 c4 Nd5 Na6 b8B Qg4 b7 Bc5 Kf6 Bb6 Bd6 Qff4 b8R Rf8 Kg7 f6 Rb7 Rh8 Bf2 Bb1 Ra8 Nf5+ Kf7 Nd4 d8Q Nc6 Rb8 Qgg3 Bhf5 Rh4 Ra8 Be4 Rc1 a1B Nh3 Qfg4 Rf1 h1Q Bg1 Qhf3 Rf2 Qff4 Rc3 Ka2 Rcf3 Bad4 Ra3+ Kb2 Qc8 c3 Qb8 Bf3 Bb1 Be4 Rh2 Bc2 Nf2 Rh8 Nh1 Rh4 Bh5 Bh7 Bhg6 Rh5 Rf2 Rg5 Ndc7 Ra5 Nd5 Ra4 Qc7 Ra5 Rc8 Ra4 Qb8 Ra5 Qa8 Ra4 Rb3+ Ka1 Rd8 Ra2 Ra3 Be3 Ng7 Bec5 Rh8 Bd4 Ne8
3q1QRr/5KN1/3Bp2B/1Q1b4/QQ2R3/bBp1bR1P/n2k2n1/2BNqrn1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 d4 g5 b4 c5 h3 a5 f6 a4 f5 g3 f7 g2 f6 g4 d6 g3 d7 a3 d5 a2 d6 Nc6 b6 Bh6 f8B Nb8 b5 Nc6 b7 Bg5 b8B Ba6 f7 Ra7 Qa4 Qc7 d8R Qb6 d7 Rh6 Bd6 Rg6 Nf3 g1N Nh4 g2 Nf5 Rf6 Bh6 Be3 f8Q Nb4 Ng7 Bb7 Bb2 Ra8 Nc3+ Kf3 Rc1 a1Q Re1 Na2 Nd1 Ke4 Re8 Qd8 b6 Rf7 Re2 Nf6 Qb5 Bc6 b7 Nh5 b8Q Nf4 Rf2 Bc1 Rf3 Rf5 Qa7 e6 Qaa4 Rf6 Qe7 Rc8 Rg8 Rf7 Qf8 Ra8 Qbb4 Bd5+ Kb5+ c4 Kc5 Qe7 Qfb8 Qd8 Q8b5 Qb1 Ba1 Ba3 Bb2 Qc1 Be2 Qc3 Rh2 Qe1 Rh1 Qg5 d8Q Rf5 Qf8 Qd8 Ne3 Rb8 Bd1 Kd3 Bb3 Ke2 Nd1 Ra8 Rc3 Kd2 Rf3+ c3 Kd4 Rf7 Kc5 Ne2 Rhf1 g1B+ Re3 Ng2 Rf3 Nef4 Kd4 Ne2+ Ke5 Rf4 Re4 Be3 Rg3 Rf1 Rf3 Qb6 Kf6 Qd8+ Kf7 Ng1 Rf5 Rc8 Rf3 Rc4 Re5 Rh4 Re4 Rh5 Bg5 Rh7 Bh6 Rh8 Bc1+
QRbR2N1/K2NqnB1/1r2p1r1/4B2p/5RQN/1Pq3r1/1Nkbn2R/3B2n1 b - - 0 1 illegal: No possible last move
2K2RQQ/2NNq2b/R1Rpb1pn/1B2N1b1/3rN2r/2Bq4/n3Q2P/Qn5k b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 b4 a5 c4 g6 f4 a4 h6 d3 h7 a3 f6 a2 f7 d2 f5 Nc6 f6 Bh6 f8R e5 Kd6 Ke3 f7 Kf2 b6 e4 c5 e3 b5 e2 b7 e1Q b8N Qde7+ Kc7 d6+ Nd7 Nb4 c6 Q7e4 b6 Bb7 Nc3 Ba6 b7 Q1e2 b8N Bc4 Kc8 Be6 c7 Q2d3 Nf3 Bg5 Bb2 Nh6 Ne5 Ra4 Na6 Qh4 Be2 Kg2 Ne4 Qe1 Qb1 d1B Bc3 Bdb3 Rf1 Qh4 Rc1 Bbc4 Bf1+ Kh1 Qc2 Bcd5 Qe2 Bb3 Bd4 Qe1 Rc6 Bbc4 Bc3 Bb3 Rb1 a1N Rb2 Bbc4 Ra2 Nb3 Ra1 Nd2 Ra3 Rg8 h8Q Na2 Qg4 Qh4 Qf6 Qc2 Qd8 Be7 Kb7 Bf5 c8Q Nb4 Qa8 Rh8 Nc7 Nb1 Re8 Ng8 f8Q Bf7 Bh3 B5e6 Kc8 Qd2 Qb7 Na2 Qb2 Rd4 Bf1 Qd1 Ba6 Qd3 Qa1 Rh5 Bc4 Nh6 Qe2 Bg8 Bb5 Bh7 Qh8 Qg5 Raa6 Rh4 Rg8 Qf6 Qf8 Qg7 Qf7 Bg5 Rf8 Qf6 Qfg7 Qe7 Qgg8
QkbnK1n1/RN2BNRq/pN6/1r5B/Nbq2RB1/r2Pr2Q/1pR5/6n1 b - - 0 1 illegal: No possible last move
r3q1r1/1N5p/4N2P/Qqp2Qqn/nRB2BB1/b2K1b1b/Nk6/2NR1BQ1 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 g5 a4 d5 cxd5 Nh6 axb5 Ng8 f4 gxf4 Kd2 Ke7 e4 a5 b4 f5 g4 c5 h4 a4 h5 a3 e6 Kd6 h6 Ke5 e7 Kd4 e8N f3 e5 f4 e6 a2 g5 f2 g6 f3 g7 Bd6 b6 Qh4 e7 Bb7 b5 Qg4 Nc3 Ra3 Rh4 Nd7 Nc7 Qe4 e8B Ba8 b7 Ne7 b8Q Ng8 b6 Ne7 g8B Nf5 b7 Nb6 Bd7 Ng7 Qc8 Na4 b8Q Be5 d6 Nh5 Bgc4 Rg8 Bg4 Qc6 Qb1 Qe8 Qb4 Bb7 Rb1 a1Q d7 Ba8 d8N Bh8 Bfe2 f1B Qa5 f2 Na2 Bf3 Qf5 Bh3 Nb7 f1Q Qe1 Be5 Kc2 Bf6 Bf4 Qg2 Rc1 Qb1+ Kd2 Qb3 Rd1 Qg3 Bf1 Qbb5 Bg5 Qge5 Bf4 Bg5 Be6 Qd5 Ne2+ Kc4+ Kc2 Bf6 Bf7 Bb2 Ne6 Qdd8 Qf2 Qg5 Kd2 Kb3 Qg1 Be5 Nec1+ Kb2 Ned8 Bg7 B7c4 Bc3+ Kd3 Bb4+ Nc3 Ra1 Ne6 Ba3 Nb3 Rc1 Na2 Rc2 Nbc1 Re2 Nc7 Re7 Ne6 Rf7 Nbd8 Ra7 Nb7 Ra8 Bh2 Nf6 Bh5 Qa6 Bb5 Kb1 Rb4+ Ka1 Bc4 Qab5 Bg4 Nh5 Nb3+ Kb2 Bc7 Bc6 Bf4 Bf3 Nbc1+
N1K3B1/6pk/Rpn5/n2qNN1r/4q3/1r1P1Q2/b1Rb1BBb/RQ1B2Rn b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 c5 Kf3 f5 Kf4 Kf7 h4 c4 a4 c3 e4 c2 d3 b3 h6 Kg6 d6 b2 d7 b6 e6 Qe8 Ke5 f4 d8R f3 h7 f2 a5 Ra7 e7 Nd7+ Ke6 Ra6 e5 Ra8 a6 Nh6 a7 Ng8 Be3 c1B Nc3 b1N Ne4 Nc3 Ng3 Nb5 Bg2 f1Q Bf2 Ngf6 h5+ Kh6 Qf3 Ng4 Nf5+ Kg5 h6 Ba6 Rc8 Kg6 Rc2 Rg8 h8R Na3 h7 Nb8 Kd6 Qe2 Kc7 Qb5 e6 Bd2 Kd8 Qe4 e8B+ Kf6 e7 Nc6+ Kd7 Nc4 Bh5 N4a5 e8B Bd6 Bef7 Bh2 Be6 Rge8 Bg8 Re5 Kc7 Kg5 Kd7 Qbd5+ Kc7 Rb8 a8N Rb7+ Kc8 Bc4 Ne2 Ra7 Ned4 Ba2 Rhg1 Ne3 Bg4 Nf1 Bh5 Ng3 Bg4 Nb4 Nc6 Nh1 Bh5 Re6 Ne5 Nbc6 Qd1 Rf6 Qb1 Rh6 Bd1 Rh4 Bf7 Rh5 Rg8 Qdd4 h8Q Qdd5 Rd8 Ra6 Qf8 Ra7 Bg8 Ra6 Nh4 Kh6 Qf3 Ra7 Bf7 Kh7 Nf5 Nb3 Rd7 Ra3 Ra7 Nba5 Ra6 Rb3 Bg8+
1Q3N2/4Np2/N1Q2r2/n1P1pNb1/1b6/n1q2BBr/BB1k2R1/Kb2QrRq b - - 0 1 illegal: No possible last move
1B4r1/2RRP3/pn1RrB2/3q1rbb/1Nb1B2Q/2Kp4/1Bn1NNQ1/1q1N1k2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 Ke6 b4 Kd5 c4+ Ke4 e6 f5 h6 g5 e7 d5 e8N a6 h7 d3 b6 f4 h5 f3 b5 g4 c5 g3 c6 d4 h6 g2 c7 f2 b7 Be6 c8R Qd6 b6 Ne7 Bb2 Qe5 Rc7 Kf4 e4 Kg3 Qe2 Qh5 e5 Rg8 h8B Nec6 h7 Rg7 Nf6 Rd7 Ng4 Ba3 Nc3 Be7 Rd1 Nb4 Bf6 Nc2 h8Q Bc4 e6 Qd5 Rh7 Rd6 Rf7 Nd7 b8N Bd8 b7 Nb6 Rfd7 Be7 Nc6 Rg8 b8B Bd8 Nh3 g1Q Bg2 f1R Nb4 Rf5 Ngf2 Kh2 Bf3 Qf1 Nf4+ Kg1 Be4 Rc6 Bh4 Bg5 e7 Re6 Qhh5 Bh6 Bf6 Bg5 Qh4 Qe1+ Kc1 d2+ Kb1 Qf1 Qf3 Qe1 Nfe2+ Kf1 Rc1 d3 Ncd1 Ne3 Rc3 Nc2 Qfg4 Bb5 R3c6 Bc4 Rcd6 Qa5 Bbe5 Qd5 Kb2 Be3 Kc3 Bg5 Nb2 Qb1 Qgg3 d1B Qg2+ Ke1 Ng3 Bh5 Ne2 Bg6 Nbd1 Bh5 Bf4 Nd4 Bc1 Nc2 Qgh2 Kf1 Bb2 Qb5 Q2g3 Qd5 Qg2+
2rqbB1K/n3p2n/bQBrNB2/3N1Q2/p5R1/4PBqN/1R1k1Nn1/2r3R1 b - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 cxd5 Bh6 axb5 fxg4 Rh3 g3 Rh2 g4 Rh1 Bg5 hxg5 Be6 Na3 Bf5 Nb1 Bc8 f4 Kf7 b4 Kg6 d4 Kf5 Kd2 Ke4 d6 a5 d7 c5 e3 h5 d5 h4 g6 c4 g7 h3 b6 h2 f5 a4 f6 g2 b5 g3 d6 Rh3 b7 Ra7 f7 Qc7 d8N Ra8 f8B Qc5 d7 Rh4 b6 Rh5 Bb2 Ra5 Nh3 g1Q Nf2+ Kf5 Qf3+ Kg5 Nc3 g2 Nd5 c3+ Kd3 c2 Ke4 c1R Be2 Nc6 b8Q Rh8 b7 Na7 Bf6+ Kg6 Ke5 Qb6 Nf7 Qd8 Ng5 Ra6 Ngh3 Rd6 Rb1 Qe1 Rb4 g1N Rg4+ Kh5 Qf4 Nf3+ Kf5 Qg1 Bb5 Qg3 Rg1 h1B Bc6 Ne1 Qc7 Bf3 b8R Ba6 Rb2 Ng2 Qb6 Bfe2 Qe4 Beb5 Qd3 Qb8 d8N Qc7 Ne6 Qd8 Be5 Nf6 g8B Nh7 Bf6 Nc8 Ba8 Be8 Bc6 Na7 Rg5+ Kh4 Qc2 Bd7 Kg6 Be8+ Kg7 Qh2 Rf5+ Kg3 Rg5+ Kf3 Rg4 Qg3 Qcc5 Rc2 Bf7 Ke2 Bg6 Kd2 Be4 Qh4 Bf3 Qg3 Rb3 Rc3 Qcb5 Rc2 Qf1 Rc3 Qb1 Rc4 Qf5 Rc1 Rb2+ Rc2 Rb5 Bg6 Rb3 Qc7 Rb2 Bf7 Kh6 Rg8 B8g7 Rc8 Bf8 Be8 Kg7 Qd8 Rb3 Rc5 Kh8 Rc1 Rb2+
1rR1bn2/1q1qp1R1/np1R1P2/1q1RbB1N/1n1Q3N/K5B1/Brk2N1B/5Q2 b - - 0 1 illegal: No possible last move
1Kn4N/2p1QB2/R5BQ/B2r2N1/1B2N2r/1k4bP/q2Qpq1Q/n1Rrn2b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 a4 b5 f4 g4 h6 b3 a5 b2 h3 e6 f6 b4 f7 b3 f5 g3 h7 g2 a6 Be7 f8B Nf6 a7 Rg8 h8N Bb7 Qc2 Rg6 Nc3 b1R Bc4 b2 Ra6+ Bc6 Nf3 g1N Ng5 Ng4 f6 Rh6 f7 Ne3 d3 Qc8 Bd2 e5+ Ke4 Kc5 d4+ Kb4 Bd3 Nf3 Rc1 Be8 d6 Nd7 d5 Nb6 d7 Bd6 d8Q Ne1 Qe7 Bc6 Bc4 Rb8 a8B Ra1 Ba2 b1Q Bb7 Qd7 Bc8 Qe8 Bf5 Nc8 Bg6 Rb5 Bb3 Qa2 Bc4 Nf3 Be1 Rc5 Qh2 Nc2 Kf5 e4 Ke6 Be5 d6 e3 d7 e2 d8Q Rh4 Qd2 Bg3 Bd5 Ba8 Bc4 Qea4 Nce4+ Ka3 Bd5 Kb2 Bb3 Qd4 Bc4 Qf2 Kd7 Nd6 Be6 Rd5 Kd8 Kb3 Kd7 Nc4+ Kc8 Nd6+ Kb8 Bb7 Bg7 Bc6 f8Q Nc8 Bef7 Rb1 Bd4 Na1 Bb6 Ba8 Qh6 Bb7 Rc4 Rd1 Ba5 Bc6 Qd4 Bb7 Beb4 Ne1 Qd2 Rd4 Nd6 Bh1 Nde4 Rd5 Rc1
n4B1B/bqpQ2N1/3Rr1QN/3qN2R/2pQ3n/K2B1B2/1rb1qQrP/4k3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 e4 Ke7 d4 Ke6 Kd2 g5 Kc3 f5 b4 a5 Kb2 g4 h6 g3 b6 g2 b7 f4 b5 f3 b6 f2 d5+ Kd7 e6+ Kd6 h7 Ke5 d6 a4 e7 Ra6 e8B Nh6 d7 Qh4 d8Q Qe7 Nh3 g1Q Bh5 Ng8 Bh6 Ra8 Bd3 f1R Ng5 Kf4 e5 Ke3 e6 Kf2 Nd2 Nd7 b8Q Re1 b7 Qg2 Bf3 Nb6 Qa7 Rb8 Qd7 a3+ Ka2 Qd6 e7 Re6 e8N Ne7 Ng7 Nf5 Nf7 Rg8 h8B Nh4 Qc1 Qb4 Rd1 Bc5 Rb1 Qa5 Rb5 Na8 Qc2 Bb6 Rh5 Qd5 Qb3 Be3 Qd4 Qf1 Qbb6 Qe2 Qbd6 Ree8 Qg6 Re6 Ka1 a2 Kb2 Nb6 Ka3 Na8 Qd8 Bd7 Qe7 Ba4 Qd7 Rbf8 b8Q Bc2 Qb7 Rb8 Qba7 Rb2 Qde4 Rf8 Bg2 Bb3 Nf3 Rb1 Nf5 Qb5 Bc2 Qb7 N3e5 Ba4 Rd4 Ke1 Rd6 Qd5 Bd3 Bc2 Qb6 Bf2 Qb2 Ba7 Qbd4 Rb7 Qee3 Rb1 Qgg4 Rg8 Bf3 Rb4 Qge4 Rg2 Bf8 Rb1 N7h6 Rb8 Qb2 Rb4 Ng7 a1Q+ Qa2 Qb1 Qa1 Rb7 Qad4 Qbb5 Qh7 Qbc6 Qf5 Rb2 Qg6 Qb7 Qf2+
6br/B1pBk2P/4b3/q1q3rN/2RrpNn1/4bRQK/3R1QR1/1n3NNQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 e5 Kf2 g5 Kg3 b5 a4 g4 d4 e4 h4 b3 h6 b2 h7 b4 f6 b3 a5 Qd6 h5 Ba6 f7+ Kd8 h6 Qd7 f5 Qa4 d6 Qa2 d5 Bb7 f6 Bg7 f8R+ Kd7 a6 Bc6 f7 Ra7 Be3 Bd4 Rh2 Qa5 Ra4 Nf6 Rc4 Bb5 Bh3 Bc6 Nd2 b1B Nf1 b2 Rg2 Rg8 h8N Rg7 h7 Ra8 a7 Ba2 Ng6 b1R Nf4 Rb4 Nh5 Na6 Bf2 Rc8 a8Q Nc5 Qb7 Ra4 Qbb3 Rg5 Kh2 Ra8 Qg3 Nb3 Qc1 Nd2 Qb1 Ba1 Ba7 Bd4 Qd1 Re8 Qdf3 Kd8 d7 Ke7 d8N Bd7 Ne6 Be3 Nef4 Nb1 Qff2 Be6 d6+ Kd8 d7 Ke7 d8R Rb4 Rc2 Rd4 Rd6 Rb8 Rdc6 Ra8 R6c4 Rad8 Rd2 Rb8 Rg8 Rc8 Rg6 Rh8 Qff3 Bb3 Rgf2 Ba2 Qh1 Bb3 Rf3 Ba2 Qf2 g3+ Kg2 Ng4 f8Q+ Kd7 Qb8 Ke7 Qb3 Bg8 Qc3 Bb3 Rcc6 Bbe6 Rc4 Nf6 Bf5 Ng4 Kh3 g2 Qd3 Bd5 Bd7 Bde6 Qde2 Qd5 Qee1 Qa5 Nge2 g1Q Qg3 Qf2 Ng1 Qe2 Qef2 Qd3 Rc5 Qdb5 Rc4 Qc5 Rc1 Nh2+ Qg4 Re5 Rc4 Rf5 Qgg2 Rfd5+ Rg4 Rf5 Rgg3 Ng4 Qgh2 Rfd5 Rg2 Rg5 Qhg3
K1R1N1rr/1p2Qbn1/N4b2/1QBp1N2/2r2N2/1PR3q1/qR3nBB/1B3kn1 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 cxd4 g4 h5 gxh5 Qc7 Na3 Qb6 Nb1 Qd8 Na3 a6 Nb5 Qb6 Na7 Qc7 Bxa6 Qb6 Bf1 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 h4 d5 a4 g5 c4 g4 f4 d3 b3 g3 f6 d2 a5 Ke3 f5 Kf2 a6 g2 f7 Rh6 f6 Bd7 Nb5 e5+ Nd6 e4 a7 e3 Nf3 g1N Nd4 e2 Ra2 e1R Bg2 Be6 Qe2+ Kg3 Rb2 Qe7 Kb6 d1Q c5 Rf1 c6 Nf3 c7 Ne5 c8B Nec6 Ne8 Qc2 Qb5 Kf2 Nf5 Rh7 h6 Qb4 h5 Ke1 Bf4 Rg1 Bh2 Rg7 h7 Qf4 h8N Qg3 h6 Na6 h7 Nd4 Ng6 Nb4 h8R Nf3 Nf4 Be7 f8Q Nh6 f7 Bf6 Qe7 Nd3 f8B Rg4 Bd7 Rb8 a8N Nf2 Ka7 Qb1 Nac7 Qa2+ Na6 Rc8 Ne3 Bf7 Bf5 Rc4 Kb8 Rh4 Bb1 Nf5 Ka8 Ng7 Rg8 Rh8 Nf5+ Ne5 Qed7 Nf3 Bc5 Nd4 Qe7+ Ne2 Nc7 Qa1 Rc8 Qa2 Bge4 Kf1 Ne8 Bg5 Bf3 Bf6 Bg2+ Ke1 Qe4 Qg4 Bd6 Ne6 Bh3 Qh4 Bf1 Rgg8 Bc5 Ng7 Qe7 Qg3 Rg1 Qe3 Rg3 Ng1 Bg2 Qe5 Ne6 Qf4 Rc3 Qg3 Bf3 Kf1 Nf4 Bg5 Bh1 Bf6 Bg2+
4RN2/1pr1kB1r/Ppbn4/N3nQ1n/1K1B2qR/1R2q1RQ/3rB3/b3N2B b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 g3 b5 Nh6 b6 axb6 hxg3 Ra5 g4 Ng8 g5 Ra8 g4 h5 a4 c5 d4 e5 Kd2 c4 Kc3 h4 f4 h3 g6 e4 g7 e3 f6 h2 f7+ Ke7 f5 e2 d6+ Kd7 a5 e1Q+ Nd2 Rh5 d5 Qe3+ Kb4 c3 a6 c2 f6 Qe5 g5 Rh6 g6 Qe3 Ngf3 Qee7 Ra3 Rh3 Rb3 Rh8 Ne1 Qe3 Be2 Qg3 Nc4 Qe3 Bb2 c1R Bd4 Nh6 g8B Qf3 g7 Qh3 Qd3 Qe3 Na5 Rc7 Qh7 Nf5 Qh3 Be7 f8Q Rh7 f7 Bf6 Rg1 Qde8 Rg3 Kd8 d7 h1N Qc5 Nd6 f8N Q8e6 Bf7 Ke7 d8R Qg4 g8B Nd7 Qc2 Ne5 Qf5 Bd7 Rc8 Rc2 Rc5 Rc8 Rc4 Rh5 Bh7 Rc7 Bhg6 Rh7 Bh5 Qg7 Bhf3 Rd2 Bg2 Bc6 Bgf3 Nc8 Bg2 Qg4 d6+ Kd8 d7 Nd6 Be4 Ke7 d8R Bh8 Rg1 Ng3 Bh1 Nh5 Rg3 Bf6 Bc3 Qg7 Rh4 Qg4+ Bd4 Nec4 Bc5 Ba1 Bd4 Ne5 Re8+
NRq2Nr1/P2b4/6Qr/Q1Q1b3/Rq2kR1p/1N1bq2N/p1Qn1nK1/5BB1 b - - 0 1 illegal: No proof kernel
1Rr1rk1K/p1Q1q2n/1b1bN3/nN1B1N2/3B2PN/1qQ1nR2/3R3p/1Q2R2b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 c5 Kf3 h5 Ke4 e5 g4 c4 b4 c3 d4 h3 f4 h2 f6 h4 f5 c2 f7+ Ke7 b6 h3 b7 Qc7 b5 Qc5 b6 Bg7 f8N Bf6 d6+ Ke8 d7+ Ke7 d8R Qc3 d5 Qa5 d6+ Kf7 d7 Qa4+ Bc4+ Kg7 Qf3 Bh4 Ra3 Qc6+ Bd5 Qc3 Bb2 c1B Ng6 Bf6 Ne2 Nc6 b8R Bb7 Nh4 Bf4 Ng3 Qb3 Re1 h1N Nc3 h2 Nb5 Na5 Bd4 B6g5 Qc3 Nf6+ Kf3 Bc6 b7 Nh7 Ke4 Re8 f6+ Kf8 Kf5 e4 Kg6 e3 f7 Bd6 Ngf5 Bf6 Kh6 e2 Kg6 Ng3 Kh6 Ng5 Kg6 Nf1 Kh6 Ne4 Kh7 Bg5 Kh8 Be3 Ra2 Nf6 Rd2 Bf2 Rdc8 Ne3 d8Q Nh7 Qc7 Bfg3 Rd8 Bc5 Rd6 Bb6 Rf6 Bf4 Rc8 Bd6 b8Q Bb4 Qbb7 Bd6 Rb8 Rc8 Rf1 e1Q Rf3 Ng2 Re6 Qe3 Re4 Qg5 Re1 Qe7 Qa1 Re8 Qbc8 Bb7 Qb1 Ne3 Qc3 Bc6 Qd7 Bb7 Qdc7 Bc6 Rb7 Rac8 Rb8 Ba8 Bc6 Bb7 Rf4 Ba6 Ba8 Bb7 Rff1 Bh1 Bd5 Qd7 Ng7 Ke7+ f8N Red8 Ngf5+ Ke8 Nfg6 Qe7 Nf4 Kf8 Rf3 Re8 Ne6+
b2bN2Q/p1kRnr2/rqP1nB1N/Q1p3RQ/1R3b2/1q2Q2K/6Bn/R5B1 b - - 0 1 illegal: No possible last move
3Q1Rn1/p3pR1K/P5r1/r1b2BQ1/Q5q1/1q1QNRn1/1BrNb2B/1B1q3k b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 b4 d5 cxd5 Nc6 bxc5 Nb8 h4 gxh4 Ke2 Kd7 Kf3 b5 Ke4 h5 d4 h3 f4 h4 a4 h2 g4 b4 g5 b3 d6 Kc6 g6 h3 a5 b2 g7 Ba6 d7 Be2 a6 Qb6 d8Q Nh6 g8Q Qc7 f6 Ng4 Kf5 Qc8+ Kg6 Bh6 d5+ Kb5 f7 Kc4 f8Q Nd7 c6 Ngf6 f5 Qc7 d6+ Kc5 Qfe8 Rc8 Ra3 Qb8 c7 Be3 Nf3 Qb3 Nh4 Rh5 Ng2 Ne4 f6 Ng3 f7 Nf6 Nd2 Kd4 f8R b1R d7 Ra5 Bb2+ Kd3 Kg7 Bc5 Ne3 Rc1 Bg2 Rc2 Rf1 h1Q Rf7 Rb8 c8B h2 Bh3 Rb6 Bf5+ Qe4 Rf3 Nfh5+ Kh7 h1Q Qg5 Rg6 Ra4 Qg1 Rb4 Qe1 Rb8 Qf1 Qb1 Qd1 Bb7 Bf1 Ra8 Ke2 Rc8 Qg4 Bbe4 Ke1 Rb8 Be2 Ra8 Rc4 Qd3 Rc3 Qb5 Rc1 Bb1 Rc3 Qd3 Nf6+ Kh8 Ng8 Kh7 Rb5 Qb8 Rc4 d8B Ra5 Bc7 Rc2 Qa4 Nh1 Rg3 Kf2 Rf3+ Kg1 Qbd8 Ng3 Bb8 Kh1 Bf4 Ne4 Bh2 Ng3 Q8d7 Qe6 Raf8 Qb3 Qd8
5N2/n1B2r1R/4NQ1b/4K3/1Q2RR1q/1n1p2p1/RP1rB1rN/Bbr1krB1 b - - 0 1 illegal: Other
2n1rq2/R2n1Q2/2B2b2/Kb1NB2B/1RRbQp2/k1N1bN2/1N1P1p2/1b3rR1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 b4 Kd6 g4 a5 e5+ Ke7 d6+ Kd7 g6 c5 g5 f5 b6 Kc6 b7 h5 g7 a4 d7 f3 e6 f4 b5+ Kb6 g6 Ka5 b6 Kb4 e7 h4 e8B c4 Qc2 a3 Bg2 h3 Kd1 f2 Nf3 h2 Bb2 a2 Nc3 Rh7 Rg1 h1B Qe4 Rh8 Kc2 Qf6 d8N Rh4 Nf7 Rh8 N7e5 Ne7 g8N Nd7 b8R Ba6 b7 Nc8 g7 Bb5 Bh5 Bc5 Ne7 Re8 g8Q Qf8 Qf7 Be3 Rac1 Ra3 Ra8 a1B b8R Ra5 Ra7 Ra3 Ne2 Rb3 Bd4 c3 Nc4 Rb1 Be5 Bb2 Kd3 c2 Nd5+ Kb3 Rbb7 Bbd4 Nec3 Ra1 Rcf1 c1B Rc7 Ba4 Nb2 Ka3 Kc4 Rb1 Rcb7 Ra1 Rb4 Rb1 Nd3 Bb2 Rc1 Ba1 Rc2 Rc1 Nb2 Rf1 Rc7 Bc6 Rc1 Ba4 Rcb7 Bc2 Kb5 Bd3+ Ka5 Bb5 Bh3 Bg2 Be6 Bh3 Ra7 Bf5 Rc2 Nb8 Bd7 Bg6 Bc6 Nd7 Bc7 Bf6 Be5 Bh7 Nca4 Bg6 Rcc4 Bf5 Nd1 Bad4 Nab2 Bh7 N1c3 Bg6 Qf5 Bh7 Q5e6 Bc2 Qf5 Bb1 Qe4
3B1K1b/nB4nQ/R1R3NB/4b3/b2Bbp2/1rNpN2q/2P2kr1/2Q2QNb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 a5 b4 a4 g6 a3 g7 a2 b6 d3 g5 h4 g6 d2 b7 h3 b5 f6 b6 d6 Nc3 h2 Bg2 Na6 b8B Nc7 b7 Rh6 Ba7 Na6 b8B Qc7 Bd4 Ne7 g8N Qd7 g7 Nc6 Bc7 Rh3 Ne7 Na7 Bd8 Nc7 Ng6 Ne8 g8N Qh7 Nh6 Bd7 Ng4 Ba4 Ne3 d5+ Kf4 f5 Kg5 Bd6 Be4 Kd7 e6+ Kc6 e7 Ng7 Kf6 Be5+ Kf7 Rf3 Kf8 Qh3 e8Q+ Kd6 Bb2 f4 Qf7 Rc8 Qc1 d1B Qg8 Rf2 Qh7 Rb8 Ba3+ Kc6 Be7 Rb4 Bg5 Rb3 Bh6 Kd6 B4b6 d4 Bb7 d3 Bd4 Bc6 Nf5+ Ke6 e4 Ba4 Ne3 Bf3 Qd1 Rg2 Qc1 Bf6 e5 Be4 Qd1 Ne8 Qc1 Bh8 Qd1 Ng7 Qc1 Kd7 e6+ Kd6 e7 Ke6 e8Q+ Kd6 Rb1 a1B Qb5 Bb2 Qh5 Ba1 Qhd1 Bb2 Ra1 Ke6 Ned5 Kf5 Nge2 Kg4 Ng1+ Kg3 Ne3 Bb5 Ra6 Ba4 Nf3 Ba1 Re1 h1B Ng1 Rd2 Re2 Bb2 Rh2 Rg2 Rc6 Kf2 Ra6 Qd7 Rh5 Qc8 Rc5 Qh3 Rcc6 Ba3+ Kg8 Bd6 Kf7 Bc7 Kf8 Be5 Qf1+
6bB/8/K2R1Nkb/3PbNp1/QpQn1B2/3B2Bq/b2bRnQr/2Q3rN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 g5 f4 b3 h4 b6 d4 e4 a4 c4 f6 c3 a5 c2 d6 b2 d5 e3 a6 e2 f5 e1B d7 Bg3 a7 Qc7 d8N+ Ke8 h6 Qd7+ Nc6 Kf7 h7 Be7 h5 Bed6 h6 Ba3 Ra2 Bb7 Bd3 Bc8 Nh3 Be7 Nd2 b1B Ne4 Bgd6 Bf4 c1B Nhf2 Bd2 Qc1 Bc3 Re2 Qc7 Nd4 Kf8 f7 Bd2 Nf6 Nc6 Qc4 Bd7 Ka6 b5 Qc1 Re8 a8Q b4 Rh2 Ba2 Nh1 Qd8 Re6 Qb8 Rhe2 Be5 Rd6 Be6 Qa7 Qd8 Qac5 Qd7 Q5c4 Bd8 Bg3 Bb6 Bf4 Bc5 Bg3 Ke7 f8B+ Kf7 Be7 Rf8 Bd8 Re8 Bc7 Rf8 Nc2 Nd4 Ne3 Ne7 Bb8 Ng6 Bc7 Nf4 Bb8 Rhg8 h8Q Nh3 h7 Nf2 Bf4 Rg6 Bg3 Rc8 Qe8+ Kg7 Bc7 Bg8 h8B+ Kh6 Bb8 Rg7 Bf4 Rh7 Bg3 Qe6 Qa4 Rf8 Nfg4+ Kh5 f6 Qd7 Nf5 Kg6 Bf4 Rh2 f7+ Qe6 Nf6 Rc8 Rb6 Bf8 Rd6 Bh6 f8Q Rc5 Qc8 Rc7 Qc4c2 Rc3 Qc4 Rb3 Qf1 Rb1 Qg2 Rg1 Qc1 Ne4 Ne3 Qh3 Nf5 Nf2 Ba7 Nb5 Bae3 Nd4 Bg3 Be6 Bef4 Bf7 Q1c2 Bg8 Qc1
B1rb3B/RBN1QK1Q/2n5/1b1p1N2/R1k2b1n/1R1qbQbB/1r3Pp1/6R1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 Kf7 Ke3 a5 Kf4 g5+ Ke5 d5 c4 g3 h4 g4 b4 a4 c6 g2 b6 g3 c5 a3 c7 e6 b5 a2 c6 Ra3 b7 Bh6 b6 Rb3 f6 Rh7 h5 Na6 b8R Qf8 b7 Rb2 Qf3 Rh8 Na3 Be3 h6 Bd7 c8B Ne7 c7 Bb5 h7 Nf5 Ra8 Nb8 Ra4 Nh4 Ne2 g1B Nd4 Bh2 Rg1 Qc5 Bd7 Qc4 c8B Qd3 Nf5 Nc6+ Kd6 e5 b8R e4 Bh3 Rd8 Bb7 Rc8 h8Q Kg6 Ke6 g2 f7 Bhf4 f8Q Kg5 Rb1 a1B Rba8 Bg3 R8a7 Bef4 Qc3 e3 Qch8 e2 Kf7 e1B Qh7 Ba5 Bd2 Bd8 Bc3 Rb3 Bh8 Bd4 Qc5 Bde3 Qb4 Rb2 Qe1 Rd2 Rb3 Rb2 Nc2 Ra8 Nb4 Rc8 Na6 Nb4 Bc3 Bc5 Ba8 Bcb6 Kf8 Bd4 Bdc6 Kf6 Bcb7 Nc6 Qf1 Ke5 Nc7 Rb8 Kf7 Rc8 Ng7 Kd6 Q1e2 Kc5 Qee4 Bde3 Nf5 Nb4 Qe7+ Kc4 Raa1 Nc6 Bh8 Rb8 R1a2 Rc8 R2a4+
4b2N/3nr1Nk/1n3p2/PN3KQr/Rqbb3p/RB1B1RB1/3b4/1Qb3NB b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 h5 Ke3 b5 Ke4 c5 g4 f6 a4 Kf7 d4 Kg6 a6 c3 a7 c4 d5 c2 d6 c3 a5 h4 e6 b4 d7 b3 e7 b2 e8R Kh7 g6+ Kg7 g5 Nh6 Ra3 Qb6 d8N Nf5 Rh3 Nd4 Nf7 Ne6 Bf4 c1B Bg3 c2 Nc3 b1B Kf5 Be7 e4 Ba2 e5 Qc7 Bd3 Be3 Qb1 c1B Nb5 Nc5+ e6 Rh7 Nh8 Bed2 Rd8 Ba6 Rd4 Nbd7 Rda4 Re8 a8B Qb8 Bh1 Bd8 e7 Rh5 Bf4 Qb7 Rf3 Bf7 Bg3 Kg8 g7 Bb6 Bh2 Kh7 Bg3 Ra8 e8N Ra7 Nec7 Be8 g8B+ Kg7 Bd5 Kh7 Ne6 Qb8 Bb3 Qb7 Raf4 Na4 Ng7 Bf2 Rd4 Nab6 Rda4 Bd4 Nc7 Bc4 Nb5 Rh6 g6+ Kg8 Ne6 Qb8 g7 Kh7 Ke4 Rh5 g8Q+ Kh6 Qg5+ Kh7 Kf5 Qd6 Be4 Qb4 Bec2 Ne5 Ng7 Re7 Be4 Ned7 Bd3
1b1QN1kb/3Qq1N1/b3pb2/2B1N2K/R4Rrn/2p2Q1R/2Pn1B1r/1Q1b3N b - - 0 1 legal: proof: d4 e5 dxe5 Ke7 a4 h5 g4 b5 gxh5 Nc6 axb5 Nb8 e6 Kf6 e7 Ke6 e8N d6 e4 Be7 e5 Bf8 Bc4+ Kf5 e6 Ke4 e7 Ke5 Bd2 Kd4 Be6 fxe6 Bc1+ Kc5 Ke2 a5 Kf3 g5 Kg4 c6 b4+ Kc4 h4 c5 f4 a4 f5 d5 f6 a3 f7 a2 h6 d4 h5 Kd5 b6 d3 b7 d2 b5 c4 h7 Ke5 b6 Qd6 h6 Qd7 Ba3 Nc6 b8R Ba6 b7 Nd4 Nh3 Nf3 Ng7 Kf6 Kh5 g4 Nf2 g3 Rh3 g2 Nh1 g1B Bc5 Bd4 Na3 Nh4 Re8 Be5 b8Q Qa7 Qc8 Bb8 Qb1 Qc7 Qd7 Ra7 Nf5 Bg7 Rf8 Rb7 Bf2 Rb3 Bc5 Rg3 Bf2 Rg4 e8N+ Ke5 Bc5 Bf6 Nfg7 d1B Bf2 Ne7 Bc5 Nef5 Bf2 Nf3 Bc5 Rg8 h8Q N5h4 h7 Rg2 Nb5 Rh2 Na7 Qd6 Bf2 Qe7 Nc6+ Kf4 Ne5 Ke4 Nf5 Rg4 Qg8 Kf4 h8B Nd2 Bg7 Ke4 Bh6 Bh8 Bhe3 Bf6 Bc5 Bh8 Nfg7 Kf4 Qb3 Ke4 Rb1 a1B Qb4 Bb2 Ra1 Bd4 Qb1 c3 Ra4 Kf4 Qd8 Ke4 Qh7+ Kf4 Nc4 Bde5 Qhd3 Bf6 Q3d7 Ke4 Rg8 Kf4 f8Q Ke4 Qf7 Kf4 Rf8 Ke4 Ncd6+ Ke5 Nc4+ Kf4 Ne5+ Nc4 Rg8 Rg1+ Rf3+ Ke4 Qdb5 Bg5 Qf8 Rg4 Nd7 Kd5 Rh3 Nd2 Nb6+ Ke5 Qbd7 Bh6 Qf3 Bf4 Nd6 Kf6 Nde8+ Kf7 Nc4 Be5 Nf5 Bd4 Rg7+ Kf8 Rf7+ Kg8 Nfg7 Bb8 Rf4 Bf6 Ne5
br3NN1/r3rQn1/n1Rp4/QpB3r1/2B4P/1rb3RQ/1R4K1/k2qQ1RB b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 h4 Kf6 a4 Ke5 f4+ Ke4 Kf2 e5 a5 b5 f6 g5 h6 g4 c6 g3+ Kg2 b3 f5 b2 a6 d6 h7 Qe7 c5 Be6 a7 Nd7 c7 Bg7 c8Q Qe8 f7 Bf8 f6 Ba2 c6 Nb8 c7 Bc4 Be3 Qe7 Rh2 Nh6 Nd2+ Kd5 Bc5 b1R Ne2 e4 Qe1 e3 Nd4 e2 Ne6 Bg7 f8Q Nf5 f7 Rb3 Qfd8 Na6 f8Q Bc3 Ne4 Ng7 Nf6+ Ke5 Ng8 Bd5+ Qf3 Qf7 Rc1 Qh5 Nf8 Rb8 Qh3 Ba8 c8R Rb7 Bb4 Kd4 Qf7 Kd3 Rb1 Kc2 Rc6 Rc7 Rd1 Kb2 Bc5 Rd7 Qa5 Qd5+ Kg1 g2 Rd3 Rc7 Rg3 Qd1 Kf2 g1R Rhg2 Bb7 a8B Kb1 Qd2 e1R Bc4 Ree7 Qe1 Bc8 Rh2 Ra7 Rhg2 Bb7 Rh2 Rg2+ Kf1 Ra2 Rb2+ Ka1 Kg2 Ra4 Nf6 Rg8 h8R Raa3 Rh6 Rh8 Rhg6 Rh5 Bf1 Rg5 Ng8 Ra4 Qc7 Rae4 Bc4 Re8 Qd8 R4e7 Qa5+ Ra3 Rf6 Re6 Kf1 Ra4 Rc7 R6e7 Rg1 Bc6 Rf3 Ra3 Rfg3 Rb8 Rc8 Be8 Be4 Bc6 Bh1 Bb7 Rc6 Ba8 Qd8 Rb3 Kg2 Ree5 Qb6 Ree7 Qa5+
2n3br/2bKRB1P/3n4/R2bQNB1/NQ6/1p2B2p/r2q1Qk1/1Bbb1R1R b - - 0 1 illegal: No proof kernel
2N1rQr1/2n2QP1/n6R/bk1np2K/1q3R2/2RBNBN1/p2BbnR1/Bn6 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 g4 c5 f4 a5 d4 h5 b4 e3 Kf3 h4 b6 e6 d6 Kc6 b5+ Kd5 b7 e2 g6 Kc4 d5 h3 g5 a4 Kg4 a3 d7 h2 d6 a2 f5 Qb6 d8R Bh6 f6 Nc6 b8R Ra6 g7 Rh7 d7 Bb7 f7 Ne5+ Kh5 Ng4 f8Q Ne7 g8B Bc6 g6 Rg7 Rdc8 Nd5 d8B Ra8 Bf6 Nc7 Qd7 Ne3 Bd2 Ned5 Qdf7 Be8 Bd4 e5 Nc3 Bc6 Bg2 e1N Nge2 Nd3 Nd1 Nb4 Bf3 Nba6 Bh7 Rg8 g7 Qb7 b6 Kb5 Bc2 c4 Ng3 c3 Ne3 Bd7 Bh7 c2 Rag1 c1N Ba1 Ne2 Rg2 Nec3 Bg6 Nb1 Bd3+ Ka4 Rf1 h1N Rff2 Bb5 Rf1 Ne8 Rc3 Nec7 Re8 Rc8 Re6 Nf2 Rec6 Qb8 b7 Re8 Rf6 Bc4 Rf4 Kb5 Rh1 Bg5 Rh3 Bd8 Rhh4 Qa8 b8N Qb7 Nd7 Qb6 Rhh2 Qa5 Nb6 Qb4 Bf5 Be2 Nc8 Na8 Rhh4 Ba5 Bd3+ Ka4 Rf6 N8c7 Rhc4 Kb5 Rh6 Qa4 Rf4+ Qc4 Bf5 Qb4 Bd3+
nBbR1qb1/1kBr1Np1/7p/4BNr1/2QRB1bn/4P2N/QbQ5/3bN2K b - - 0 1 illegal: No proof kernel
2qB2B1/2rr1pb1/3Q2N1/2P5/2Q2RRr/B2Q1n1p/2Q1bNk1/1K1NnrrN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 Kc2 h5 e6 a5 b6 d5 b7 h4 g6 h3 e7 a4 e8Q+ Ne7 b5 a3 b6 a2 g7 Rh6 g8Q Bd7 c5 Be6 g5 Ra6 g6 Nf5 g7 Qf6 Nc3+ Ke5 e4 Ra8 Qa4 Nh4 Ba3 Kf4 e5 Kg3 Nge2+ Kf2 Rg1 Bd7 e6 Ng2 e7 Rg6 e8N Bf5+ Qd3 Nc6 b8B Qe6 b7 Bg4 Nd6 Qc8 Ng3 Ne5 Bc7 Rh6 b8Q Rh4 Bd8 Ra7 Qgh7 Nf3 g8N Bg7 Ne7 Rc7 Qac4 Nge1+ Kb2 Bh5 Ng6 Bg4 Rc1 a1R Be2 Bh5 Bd1 Bg4 Bc2 Bh5 Rf1+ Kg2 Nd1 Bg4 Nde4 Bh5 Qdc3 d3 Nef2 d2 Qb6 d4 Qd6 Bg4 Q3d3 Rb1+ Ka2 Rbb7 Rb1 Rd7 Rb4 Rbc7 Kb1 Bh5 Qdc3 Bg4 Bf5 d3 Qb2 Ng1 Qbc2 Be2 Qb5 Ngf3 Rg4 Ng1 Qb4 Ngf3 Qbc4 Ng1 Nc3 Re7 Nfe4 Red7 Ne7 d1R+ Qc1 d2 Rff4 Ngf3 Nf2 Nc2 Be4 Rf1 Bd3 Nce1 Qc2 Rg1 Qhe4 Rh7 Qe3 Rh5 Bh7 Rh4 Ng6 d1R+ Bc1 Qa8 Bg8 Nd3 Qed2 Rde1 Ncd1 Qc8 Ba3 Ref1 Qe3 Nde1 Qed4 Rh5 Qdd3 Rh4 Ngh1+
2n5/R1p2R2/BnKn1Q2/b2R1b2/1rNq2n1/p2PBR1Q/1NkB4/Nr3Bn1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 f4 h5 d3 e5 f6 a5 g5 h3 g6 h4 f5 a4 d6 h2 Kd5 h3 b6 e4 b7 e3 d7 e2 f7 e1N g7 Nf3 f6 Ra6 Ne2 Nh6 g8B Bg7 f8R Ng4 f7 Nge5 Nd2 Ne1 Nc4 Qg5 d8Q Rah6 Qf6 Qe3 Nc3 Rh4 Qg4 Kb3 Nd1 Ng6 Bd2 Kc2 b4 Nd7 b8B Nf3 b5 Nb6+ Kc6 Qd4 Ndb2 Ng1 Ba7 Bf5 Rd8 Bf8 Rd5 Bb4 f8R Ba5 Rf7 R8h7 Qh5 Re4 Qh6 Re1 Qe3 Rb1 Qee6 Rh4 Ra2 Nc8 b6 Nf8 b7 Nd7 b8N Ndb6 Nd7 Rg4 Nc5 a3 Nb3 Ne2 Rg1 h1N Rg3 h2 Rf3 Nhg3 Qe3 h1N Qeh6 Re1 Qh3 Ne4 Ra1 Ng1 Rb1 Na8 Bc5 Nhf2 Ba7 Ned6 Bb6 Qe4 Bbe3 Qd4 Bh7 Be4 Bf5 Rh4 Be6 Ng4 Bd7 Bf5 Be6 Ncb6 Bc8 Rd1 Ba6 Nbc8 Rb5 Re1 Rb7 Nab6 Ra7 Re2 Re1 Rh2 Re2 Rh1 Rg2 Nh2 Rg6 Ng4 Rg5 Qe4+ Kc5 Bd7 Qh2 Nf2 Bh3 Ne2 Rd5 Rb1 Ne5 Bf5 Bf1 Ng1 Kc6 Rf4 Qh3 Ng4 Bd4 Qe3 Bc5 Rb4 Nec4 Qe4 Bce3 Qd4 Na1+
Q2k1b1r/1Prb2p1/Q1pn4/4BR2/1b2q1BN/2B1b1N1/K1R2BQQ/nN3b2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 a5 e4 f5 d4 g3 Kd2 f4 Kc2 a4 b4 f3 Kb2 c6 b6 g2 e6 a3+ Ka2 f2 h5 Ke7 b5 Ra6 h6 Qd6 h7 Qd8 e5 Ra7 d6+ Ke8 d5 Nf6 e7 Ra5 b7 Be6 b6 Bg8 d7+ Kf7 e8N Ke7 e6 Ng4 Qf3 Qc7 Bf4 Qe5 Nd6 Qe4 Rh2 Ne5 Nf5+ Kd8 Ne2 g1B Nh4 Nd3 Qg2 Be7 Be5 Nb2 Ng3 Ra4 Be2 f1B Bg4 Na6 b8B Qf5 b7 Be2 Bc3 Bf8 Bbe5 Ke7 d8B+ Ke8 d6 Nc5 Bf4 Ra8 Bfe5 Qe4 Bb6 Nc4 e7 Nb3 Bf2 Rc8 d7+ Kf7 d8Q Rc7 Nd2 Bf1 Qd4 Ke8 Nb1 Be6 Qa7 Bd7 Qa6 Rg8 h8Q Nd6 Qh6 Rh8 Qe3 Qd5 Qea7 Qe4 Bfe1 Be3 Bf2 Bd3 Nd2 Bb5 Rf1 Na1 Nb1 Bd3 Bfe1 Bb5 Rf5 Bf1 Bf2 Nc2 Kb3 a2 Kb2 a1B+ Ka2 Bb2 Rh1 Be2 Rc1 Na1 Rc2 Ba3 Qh2 Bf1 Qg2 Bc8 Qh2 Kd7 Qg2 Bb4 Qh2 Ke6 Qg2 Bd7 e8Q+ Be7 Qh5 Bf8 Qh7 Ke7 Qh6 Bec5 Qd2 Be3 Qh2 Kd8 Qd5 Qd4 Qdg2 Qe4 Qa8+
2b3K1/1R1rB1RB/Q3n3/2b2Bk1/3nr1b1/1PNN1pb1/1qR1QpN1/2nN3R b - - 0 1 illegal: No possible last move
1Q5B/R2Rn1B1/BNbR1R1r/2r3QQ/4P3/3pp1nK/2qbk2b/2nb1NQ1 b - - 0 1 illegal: No proof kernel
N3Q1K1/1RRnBQ2/1B1r1bBQ/Q6n/r1Pb1prR/4kp2/1Nb4r/1Bq5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 a5 c4 f3 b4 a4 h6 d6 c6 g4 b6 a3 h7 g3 b7 f6 b5 a2 b6 g2 h5 Nd7 b8B Qc7 h6 Bb7 Qd5+ Ke7 Kf5 Bc8 Kg6 f5 e4 f4 e5 Ra5 e6 Rb5 b7 Rb4 Rh4 Rb6 Ba3 Ra6 Nc3 Ndf6 Qa5 Ra7 Bd3 Nd7 Nd1 Ngf6 Nb2 Qb6 c7 Qf2 Nh3 g1R+ Ng5 Qe3 Bb1 Ra6 Ba7 Qd2 b8R Qc1 Bb6 Nh5 Rb7 Bg7 Bb4 Bf6 B4c5 Rd8 h8Q Rg4 Kh7 Bd4 Qg8 Kf6 e7 Ke5 e8B d5 Be7 Ra8 Qd2 Ra4 Beg6 Rf8 Kh8 Rf6 h7 Rd6 Ra7 Bb7 c8Q Bc6 Qce8 Ba8 Bbd3 Bb7 Rb1 a1B Ne6 Ba8 Bf1 Bc6 Qa5 Bb5 Bf7 Ke4+ Qg7 Bc6 Kg8 Ke3 h8Q Ba8 Qh6 Bb7 Nc5 Bf6 Qgg6 d4 Bd3 Be4 Rc7 Bf5 Bc2 d3 Na6+ Bd4 Qgg7 d2 Bg6 d1R Qgf7 Be4 Rc8 Rf1 Nc7 Rh1 Na8 Rh2 Rc7 Bf5 Nd3 Bc3 Rb3 Be4 Bb1 Bf5 Nb2 Bd3 Rb5 Bc2 Rbc5 Bf6 Rb7 Bcd4 Rcc7
1nr4k/2b1n3/2B5/RQ1p1N2/RqB1n2R/Rn1Pr2N/1B4p1/BQNK2bb b - - 0 1 illegal: No possible last move
k1n1QBrR/B1bQb1q1/K2nQ1N1/1Rp1b3/p1B2B2/P3Q3/2N2rr1/1N2r3 b - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 g5 c4 bxc4 h3 f5 Na3 Bb7 Nb1 Bf3 gxf5 g4 Qc2 g3 Qd1 Bg4 hxg4 Ke7 Qd6+ Kf7 Qd1 Ke8 Kd2 a5 Kc3 d5 b4 Kd7 e4 Kc6 f4 Kb7 g5 c5 a3 h5 g6 a4 e6 g2 f6 h4 e7 h3 e8Q h2 e5 Qb6 f5 Nh6 b5 Bg7 e6 Rg8 e7 Nc6 Ne2 g1B Bf4 Qa7 b6 Nf7 Nd4 Nd6 f7 Be5 f8N Rd8 g7 Ka8 f6 Qc7 f7 Na7 Qc1 Nac8 Qe3 Qa7 Kd2 c3+ Kd3 c2 Qd7 c1B Ng6 Rdf8 Nc2 d4 e8Q Bf2 Ra2 Bh4 Rb2 Be7 Rb5 Bd2 Be2 Ba5 b7+ Kb8 Rg1 h1R Rg4 Bb6 Rh4 Rg1 Rh8 Bc7 Bf1 Rg2 Be2 Ne4 Kc4 d3 Bf1 d2 Bd3 Qb6 Bf1 Ka7 b8B+ Ka8 Ba7 d1R Be2 Qb7 Bd3 Bg5 Be2 Rf1 Qee6 Re8 f8B Ned6+ Kd3 Qd5+ Qd4 Rff2 Qee7 Bef6 Rb4 Qf7 Qd5+ Nb7 Kc4 Bc3 Kb5 Qf6 Qa2 Nbd6+ Ka6 Ba1 Rb5 Bd4 Rh6 Rh8 Qaf7 Ba1 g8Q Bb2 Bc4 Qg7 Ne5 Bf6 Qh5 Bg5 Qgf7 Rg8 Rh8 Bc3 Qhg4 Bf6 Ng6 Bh4 Qe1 Re6 Qh3 Be7 Qfe8 Re4 Qd2 Be5 Qhe6 Re1 Qe3
2B2BR1/6RN/1bR1b3/1P1k1rQn/3qRN1Q/1pQ1B1nQ/bK3p1r/n3b3 b - - 0 1 illegal: No proof kernel
QN1RBn1B/bBN5/2nN4/Qp6/r1N2pK1/2R1RR2/b3bP2/n1qkn2r b - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 e5 dxe5 c6 b4 Nh6 a4 Qe7 axb5 Qd8 b6 Ng8 b5 cxb5 e4 Ke7 Ke2 Ke6 Kf3 f5 c4 a5 h4 d5 h6 g5 h5 a4 h7 d4 c5 f4 b7 d3 h6 a3 c6 d2 c7 a2 Qa4 d1B+ Ne2 Ba3 Qa5 Qd6 Kg4 Qc6 Bb2 Qc3 Bg2 Qc2 Re1 Ra6 Nd2 Bd7 c8R Ne7 Rc3 Bc5 Nc4 Nbc6 b8N Ba7 Bf3 Be8 Ng3 Qc1 Ree3 Ng6 Nf5 Be2 Nfd6 Nf8 Rb1 Bf7 Ra1 Ke7 e6 Kf6 e7 Bg8 Rb1 a1N e8N+ Kg6 e5 Bf7 Qb4 Ra4 e6 Bg8 e7 Bf7 Na3 Ba2 Nc7 Kf6 Qa5 Kg6 Kh3 g4+ Kh4 g3 e8B+ Kf6 Nac4 g2 Kh5 g1N Kg4 Bd3 Bg2 Nf3 Bh1 Ne1 Bg2 Nb4 Bb7 Nc6 Rf3 Bf1 Rfe3 Be2+ Rf3 Qd2 Rd1 Qc2 Rdd3 Qc1 Re3 Rg8+ Kh3 Rg1 h8Q+ Kg5 h7 Bd4 Qa8 Ba7 Qd4 Rf1 h8R Rg1 Qb6 Rf1 Qa5 Rg1 Nf7+ Kf5 Red3 Ke4 Rd8 Rf1 Kg4 Rh1 Rh3 Nd7 Ne3 Nf8 Nd6+ Kd4 Rc5+ Kd3 Nec4+ Kc2 Bh8 Kd1 Re5 Bb6 Re3 Ba7 Rc3 Bf1 Rfe3 Be2+ Rhf3
r1kB3b/1N3nNQ/RKn1nn1p/3r1r1B/2Q2Q1N/3b1B2/B2pQ2P/qR6 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 g5 Kd3 d5 Kd4 Kd7 c4 a5 f4 h6 e4 g3 b6 a4 f5 g2 c6+ Ke7 Kc5 g4 e6 a3 b7 a2 f6+ Ke8+ e7 g3 c7 Kd7 f7 d4 e5 d3 Bg5 d2 Be2 Rh7 Kb6 Ra4 e8N Bb4 f8Q Bd6 c5 Rc4 c6+ Ke6 Na3 Rc5 Qg7 Qf6 Nf3 g1N Nb5 g2 Nh4 Nh3 Qg6 Rd7 Qh7 Bf8 Nbd6 g1N Bh5 Rf7 Qe2 Nf3 Rhb1 Bg7 Bg4+ Ke7 e6 Bh8 Ng7 Bd7 c8B Nf4 c7 Bb5 Bd7 Ne5 c8Q Bd3 Bc6 Ra5 Bd5 Ra8 Qc2 Kd8 Bb3 Rd7 Qc1 Nf7 Qc4 Nc6 b8Q+ Ke7 Bf3 Ra5 Nc8+ Kd8 Qbe5 Rd6 e7+ Kd7 Qed4 Ne6 Qf4 Rd4 Nd6 Rf5 Nb7 Rdd5 Rh1 Kc8 Rhb1 Nfd8 e8B Qe5 Beh5 Nf7 Be7 Nf6 Bd8 Qc3 Rb2 Qe5 Rab1 a1R Ra2 Qc3 Ra5 Ra3 Ba2 Qa1 Rab5 Ra7 Ra5 Ra8 Ra6
1rN1nK2/Q3N1B1/QB5p/5R1r/1qPBpR2/R3n2b/1br1Bkb1/N2R1b2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Ke4 e5 Kd5 h6 c4 d3 f4 e4 b4 d2 g4 d6 g6+ Kf6 g7 a4 b6 a3 b7 a2 g5+ Ke7 b5 Nd7 b8B Qe8 g6 Kf6 b6 Nc5 b7 Qb5 Ne2 Ra5 Qa4 d1B Na3 Qd7 Bg2 Rb5 Bc7 Rb3 b8Q Ne6 Nc3 Nc5 Nc2 Nd3 Be3 Qe8 Bf3 Nf2 Qba7 Be2 Rhd1 Qe7 Q4a6 Rb2 Nb5 Ng4 Bcb6 Bf1 Kc6 d5 Nd6 Be6 Nc8 Qb4 Kc7 d4 Kd8 d3 Ke8 d2 Bec5 Ne7 g8R Nd5 g7 Bd6 Bf2 Be5 Bfd4 Nge3 Rf8+ Bf7+ Kd8 Nc7 Kd7 Ne8 g8N+ Kg7 f6+ Kg6 f5+ Kg5 Kd8 Kf4 Nge7 Be6 f7 Kg3 f6 Bf5 Rg8+ Bg4 f8B Kf2 f7 Bgh3 Bg7 Bf6 f8R Be5 Re1 d1B Rf4 Bfg2 Rgf8 Be2 R8f5 Bef1 Rad1 a1R Kd7 Raa2 Na1 Ra5 Rd3 Bf6 Red1 Rc2 Ra3 Be5 Ke6 Rd5 Kf7 Rg8 Bdc5 Bb2 Bcd4 Rb5 Bh8 Rg5 Kf8 Rh5 Bhe5 Qa5 Bg7 Qb4 Bc7 Rb7 Bcb6 Rb8 Be2+
1BB2r1n/1r1qbQN1/R4Qp1/1nB1K2P/1n3Q2/N1nb1B2/3RR1p1/1r2R1k1 b - - 0 1 illegal: No possible last move
n1K1N3/B1Rr2Qb/r1bPB3/3p2p1/N2Q2k1/B4RBn/q1Q1b1R1/rQb5 b - - 0 1 illegal: No possible last move
3N1r1b/4b2Q/Q1bpBR1b/B3Pp2/qNR1NNr1/4Rn2/2nk2Q1/1K1n2R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 Ke6 c4 Kf5 Kc2 Ke4 h4 a5 c5 g5 h6 f5 h5 a4 c6 a3 c7 g4 e6 d6 e7 g3 e8R+ Qe7 b6 a2 b7 g2 b5 Nc6 b8Q Ne5 b6 Nc6 h7 Qe5 b7 Ra3 h6 Qe6 Qa7 Nb8 Nc3+ Ke5 e4 Rb3 Bd2 Ne7 Qg4 Rb1 Nd1 Rb6 Bc4 Na6 b8N Rb4 Nf2 Nc6 Ngh3 g1B Nf4 Bb7 c8R Be7 Qg2 Qd7 Be6 Rf8 h8N d3+ Kc1 Nd4 h7 Ba8 Rc4 Nf3 Rh6 Qa4 Rf6 Bc6 Rb1 a1B Be1 Rb7 Ba5 Nb4 Na6 Nc2 Nb4 Bc3 Ra1 d2+ Kb1 d1N Qa6 Bd2 Ra3 Rb8 Re3 Rg8 Rc8 Rg4 Rg8 Bh2 Rcc3 Kd4 Nf7 Rd8 h8Q Rf8 Qh7 Bg3 Nd8 Bh4 Rfg6 Bhf6 e5 Bh8 Rf6 Bc1 Re1 Bd2 Rg1 Bc1 Rc4+ Ke3 Rg7 Rh4 Rg3 Rg4 Nh5 Ke2 Rh3 Bg5 Nf4+ Kd2 Rg3 Bh6 Rh3 Nfd4 Re3 Nf3 Ne4+
1Rbn3K/1n1qn1Q1/3p2rN/k1rPB1BQ/1b1pr2r/3NQ2B/Q2N4/4N2R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 b4 d5 b3 Qd4 cxd4 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Kd3 e5 Ke4 g5 c4 g4 b4 a4 f4 g3 h4 a3 b6 a2 b7 g2 c5 Bd6 b5 Qb6 c6 Kd8 c7+ Ke8 h6 Ra6 h5 Nc6 b8Q Bb4 f6 Na5 Kf5 e4 Kg6 e3 Kg7 e2 h7 e1R f5 Bd2 f7+ Ke7 f8N Kd6 h6 Kc5 f6 Kb4 f7 Qb7 b6 Re2 Qa7 Nc6 Ne6 Bg5 f8Q+ Be7 Nf4 Qb8 b7 Re1 Nd3+ Ka5 Bg5 Bd8 Nf3 g1N Bh3 Be7 Nbd2 Re4 Nfe1 Ne2 Rb1 a1R Qf7 Ra4 Qh5 Ng3 Rb2 Qa8 b8B Rc4 Rb7 Bb4 Rb6 Bb7 c8Q Nd8 Be5 Ne7 Qc7 Rc1 Qc3 Bc8 Rb8 Qb7 Qb3 Rc5 Qa8 Re8 h8Q Rh4 h7 Ne4 Qf8 Qc7 h8N Nd6 Nf7 N6b7 Nh6 Nf5+ Kh8 Kb6 Bef6 Ree4 Be5 Ne7 Nb2 Kb5 Qff7 Rg6 Qe3 d6 Nbd3 Qd7 Qg7 Kb6 Qa1 Kb5 Qb2 Ka5 Qa2+
3BQb2/2Nn2r1/1pQ1N1BR/p3B2K/kb4n1/2rRQqR1/P4Q2/1nn1R2b b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 b4 d5 cxd5 Nc6 bxc5 Nb8 h4 gxh4 Ke2 Kd7 Kf3 h5 d4 a5 g4 e5 f6 b6 f7 h3 d6 Kc6 d7 h4 d5+ Kc7 d6+ Kc6 g5 e4+ Kg4 h2 f4 h3 f5 e3 f6 e2 g6 Kb5 c6 Qe7 g7 Rh6 c7 Rh5 Qe1 Ba6 d8B Nd7 c8Q Rh6 Bb2 Qe3 Nf3 Ka4 Qc6+ Bb5 Na3 Rh7 Be5 Nh6+ Kh5 Rc8 g8R Rg7 Ng5 Ng4 Ne6 Qf3 Qf2 e1B Qe3 Rc7 Bd3 Bb4 Bg6 Rc8 Rhe1 h1N Rad1 h2 Rd3 Nhf2 Rh8 h1N Rh6 Nc5 d7 Nfe4 Rc3 Nhf2 Rb3 Bd6 f8Q Nc3 f7 Nb1 Qe8 Nfd3 f8Q Nc1 Qff4 Bf8 Qf2 Qd1 Rg3 Qf3 Q4e3 Rc7 Qd6 Ba6 Nb5 Bb7 Qc6 Rc8 Bdc7 Ba8 d8R Bb7 Rd3 Nd7 Bd8 Rc7 Qd5 Rc3 Qdc5 Qf4 Qc4 Bh1 Nbc7 Qf3 Qc6+
2N4B/1BQ1nBKn/PR6/1Rpbr3/Q2N1q1n/b3Qn2/3bp2k/4RrRB b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 a4 Kf4 g4 b5 a6 h5 g6 h4 a7 c6 g5 e3 g7 h3 g6 e2 a5 e1B a6 h2 d6 e6 d7 b4 Qa4 b3 Ne2+ Kg4 Ke5+ Bb4 f4 c5 d4 b2 d5 Qb6 d8R Qa5 d6 Bd7 f5 Rh3 f6 Rb3 f7 Rg3 f8R Bc6 d7 Rg1 Nd2 b1N Ne4 Qb5 Bg2 Ba3 Nd4 Nf6 g8B Qb4 g7 Bd2 Nd6 Kg3 Nc8 Rf1 Bb2 Bd5 Bf7 Nh7 Rg1 h1N g8Q+ Kh2 Qg5 Ng3 Qe3 Nf5 Bh1 Nh4 Rde8 Qc4 d8Q Qb4 Qc7 Nc6+ Kd6 e5 Re6 Rb8 a8B e4 Bb7 Ne7 Ke5 Qc4 Rb6 Qb4 Qf3 e3 Rb5 e2 Qe3 Qc4 Rfg8 Qb4 R8g6 Qc4 Rgb6 Qb4 Na7 Rg8 Nc8 Rg5+ Kd6 Re5 Kd7 Nc3 Ke8 Ne4 Re1 Neg5 Bc3 Ngf3 Ba1 Nhg5 Kf8 Nh7+ Kg7 Qc4 Ne6 Qf4 Bb2 Rh5 Bf6 Re5 Nd4 Qe4 Kh6 Qf5 Bh8 Qf4+ Kg7
2bN3B/K2N3Q/p3R2p/r2R1bQ1/n4rr1/b1n2PNQ/kQ1qB3/r4N1B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 e5 d4 c5 b4 e4 g4 e3 b6 a6 b5 h3 g5 e2 g6 e1R g7 h6 f6 h2 b7 Re8 f7 Nf6 g8B Bg4 b6 Nfd7 Ne2 Qc7 Ra5 Bh5 Nd2 Nc6 b8N Bg4 b7 Qc8 Bb2 Rd8 Qb3 Be6 Qh3 Nb4 Ng3 Bf5 Be2 Na2 Re1 h1B Ndf1 Nc3 Rb5 Be7 f8Q Bg2 Be6 Rg8 Qf7 Rg4 Qh7 Rf8 Bf7 Qd8 Bh5 Rf4 Bhf3 Rg8 Ra5 Rg5 Be4 Bf3 Rb5 B3g4 Bh1 Ra7 f3 Bf8 Nc6 Be7 b8Q+ Rc7 Ne5 Nb6+ Kb3 c4+ Kb4 Rg7 Ka5 Nba4 Nd7 Bf8 Qb7 Rc5+ Qb6+ Ke7 d6+ Ke6 Ba1 Kd5 Bb2 Nd1 Ba1 c3 Bb2 c2 Bc3 c1R Ba1 Ke6 d5+ Kf7 Bb2 Ra1 Be5 Qg5 Qb8 Ndc3 Bd4 Nb2+ Kb6 Nba4+ Ka7 Qd8 Ra5 Qg5 Qb2 Be7 Nf8 Rb5 d7 Ba3 d8Q Bc8 d6 Bgf5 Ng6 Ke6+ d7 Kd5 Nf8 Rg8 Bh8 Rc5 Bd1 Kc4 Re6 Re5 Rd5 Rg6 Rd3 Ra5 Be2 Rg8 Qde7 Rg6 d8N Rg7 Qc1 Kb3 Rd5 Ka2 Nd7 Rg8 Ne4 Qg2 Neg3 Rgg4 Qg5 Qf2+ Ne3 Qe1 Nef1 Qd2 Qb2+
B6N/Q3rNP1/n1nQ4/1p2Rr2/b1BB4/K2p1nq1/QN1kn2b/1Rb1Q2B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 g4 d5 f4 b5 c4 e5 Kc2 h5 Kb2 b3 a4 h4 c6 h3 a5 h2 c5 e4 c7 e3 g6+ Kf6 c6 d4 a6 e2 a7 e1B g5+ Kg7 Nc3 Rh7 f6+ Kh8 f5 Rh4 f7 Kg7 f6+ Kh8 g7+ Kh7 Be3 Kg6 Rb1 Kf5 g6 Rh8 Na4 Ke4 Nf3 Qd6 Ne5 Ne7 g8Q Bg3 g7 Bg4 c8B Rh5 c7 Rf5 Qe1 Na6 Bc4 d3 Bb7+ Nc6 c8Q Bd1 Qc7 Re8 a8B Re7 Bd4+ Kf4 Rg1 h1N Rg2 Bc2 Re2 Bh2 Qca5 Qc7 Ka3 Ng3 Nb2 Qb8 Re3 Ne2 Qb6 Qc7 Qa7 Bd1 Ng4 Qe5 Re4+ Kf3 Nh6 Qg3 Re5 Kg2 Qb4 Kf1 Qd6 Ke1 Qe6 Ncb4 Bh1 Kd2 Qd6 Nc6 Qe6 Rc7+ Qd6 Be7 f8N Bc2 f7 Bg5 Ng6 Re7 f8Q Bd1 Na4 b2 Qe8 Be3 Nf7 Bc2 Rg1 Bd1 Ngh8 b1N+ Ka2 Bf4 Nb2 Ba4 Rc1 Nbc3+ Ka3 Ne4 Rb1 Ng5 Qc8 Nf3 Qce6 Qh4 Qgd8 Qg3 Qa5+ Kc2 Qab4 Bc1 Qb3+ Kd2 Qa2 Rh5 Qh3 Rg5 Qf1 Rf5 Qe1+
QBNr3N/QR3Pb1/b1p3p1/1Q1rr3/kq5R/Bnb3K1/2N1b3/2B1NBn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 Kf2 e5 d4 b5 h4 c6 a4 g6 d6 b3 a5 e4 a6 b2 a7 b4 f6 b3 f5 e3+ Kg3 e2 d5 Qa5 f7 Qb5 h6 Ne7 h5 Qa4 h7 Na6 f6 Qa3 h6 Ng8 Rh4 Bg7 f8B Qa4 f7 Nf6 Qd3 Nc5 Na3 b1R Nf3 b2 Qb5 Ba6 Nc2 Qb4 Nfe1 Rd8 a8Q Ng4 Qa7+ Kc8 Ra3 Nf2 Rb3 Nh3 Be7 Rhf8 h8Q Ng1 h7 Rfe8 Qf8 Ra1 h8N b1B Qg8 Ra5 Rb2 Bb7 d7+ Kc7 Bf8 Re5 Rb3 Rb8 d8N Ba2 Rb2 Bc4 Be7 Nb3 d6+ Kc8 Qf8 Ba6 Nb7+ Kd7 Qg8 Rd8 Rb1 Ke6 d7 Bd3 Bc5 Kd5 Nd6 Bc4 Nc8 Bd3 Qbb6 Bdb5 Bd6 Bd3 Bb8 Rc5 Bf4 Kc4 Bc1+ Kc3 Qbb7 Rcd5 Qba8 Bdc4 Qh7 Bcb5 Qh5 Bd3 Rh3 Kc4 Rh4+ Kb5 Ba3 Ka4 Rb2 Rde8 d8B Bb5 Bg5 Red8 Bc1 Bc4 Nd3 e1B+ Kf4 Bc3 Kg3 Nc5 Nde1 Be2 Qf5 Qd4 Rb5 Nb3 Rb7 Qc4 Qd3 Qb4 Qb5+
1b2Br2/1B2kprQ/7r/2n2R1P/n1pQ4/2QrB2q/1RQB1Kb1/b1NNN3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 d4 c5 b4 g5 e4 f3 b6 c4 d6 a4 d7+ Ke7 h6 a3 h5 g4 b7 g3 h7 a2 e5 g2 e6 Kd6 b5 Qe8 d8N Ne7 d5 Qc6 b6 Qc5 Nc3 Nbc6 Qc2 Qa3 b8Q+ Kc5 b7 Ne5 d6 N5c6 d7 Qa4 Nd1 Kd5 Be3 Qa7 Ne2 g1R Rb1 a1B Kf2 Rg7 Nc1 Nb4 Rb2 Na6 Nc6 Nc5 Qg3 Qa3 b8B Bb7 Ne5 Nc8 d8Q+ Bd6 e7 Ke6 e8B Nb6 Ned3 Nba4 Ne1 Qc3 Qb6 Ke7 Bg2 Bc6 Ba7 Bb8 Bd2 Rf8 h8Q Qb3 Kf1 f2 Qhh7 Qc3 Ke2 f1R Rg1 Rf3 Rf1 Rf6 Rf5 Rh6 Kf2 Bd5 Bh1 Bg2 Qgd3 Qa3 Qa5 Qb3 Qd4 Qh3 Bb6 Ra7 Qac3 Rd7 Ba7 Bf1 Bb7 Bg2 Bb6 Rd8 Bc7 Rd7 Bcf4 Rd5 Bfe3 Rd8 Qf4 Rd3 Qfd4
1Q1n1BNb/R2BprN1/1Q1p3k/1r5P/1Q1Rq1B1/3N1Q2/4nrr1/3bK1nB b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 c4 Kf7 h4 a5 f4 g5 b4 Kg7 f6+ Kh7 f5 a4 h5 d6 c6 a3 f7 a2 b6 g3 c5 g2 c7 g4 f6 g3 b5 Bg4 c8B Bd7 c6 Be8 c7 Qd7 b7 Ra4 b6 Ra3 Qd4 Ra6 Bh6 Qh3 Nc3 Qh2 Ne4 Bd7 Qb4 Qh4 Ne2 g1N Nf4 Ra5 Nd3 Nc6 b8Q Nd4 b7 Rb5 Bg2 Bg7 f8Q Bg4 f7 Bd1 Bd7 Nde2 c8B Bf6 Bg7 Nh6 Bg4 Be5 Bcd7 Bd4 Rh3 Bb2 Bh1 g2+ Rg3 Bd4 Qa7 Rg8 Qfa8 Rf8 b8Q Be5 Qab6 Bd4 Rc1 a1R Rc7 Ra2 Ra7 Bb2 Nc3 Ba1 Qf3 Rd2 Nd5 Be5 Bh3 Qe4 Rg4 Bd4 Rh4 Rc2 Bhg4 Ra2 Be5 Rb2 Bf4 Bh8 Nf6+ Kg7 Qff2 Qg6 Bdf5 Ng3 Bd7 Nh3 Be2 g1R+ Qf1 Rg2 Bc1 Ra2 Rd4 Ng1 Beg4 Qe4+ Be3 Rad2 Qf5 Rdf2 Qf3 N3e2 Bg5 Rc8 f8N Nf7 Be3 Re8 Bc1 Nd8 Ne6+ Kf7 Bh6 Rf8 Nd5+ Kg8 Bg7 Rf7 Bf8 Kh7 Ng7 Kh6 Nf6 Qa8 Ra3 Qd5 Ra7 Qe4 Ng8+
2B2bN1/4p1PQ/6Q1/r1n1R3/3KNr2/bQB1n1r1/r1b1kpB1/RQ2Rq1B b - - 0 1 illegal: No proof kernel
3n2b1/r2pb3/1p1P2r1/3RRq1k/2B2bRb/4R1BN/1QNNKBQ1/n2N3n b - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 e4 h5 g4 f5 exf5 Nf6 gxh5 Ng8 b6 cxb6 d4 Kf7 f4 a5 c4 g5 h4 e5 d5 e4 f6 g4 f5 a4 h6 e3 h5 g3 h7 g2 h6 e2 c5 a3 c6 a2 c7 Be7 Nd2 Bd6 Qc2 Ra4 Rh5 Re4 Nh3 Nc6 b8B Bb7 c8N g1N Ne7 Bh2 Bg3 Qe8 d6 Na5 Nd5 Bc6 Nc3 Qc8 Nd1 Re6 Rg5 Qb7 Rg4 Ne7 Bf2 Rc8 h8Q Ra8 h7 Bd5 Qb2 Ra7 Qa8 Nec6 h8R Qc7 Rh5 Nd8 Bg3 Bc4 Qg2 Qc5 Rb1 a1B Bf2 Kf8 f7 Rg6 Rhg5 Be5 Bg3 Kg7 f8R Kh6 f6 Bb3 f7 Bf4 Re8 Qf5 f8N Bg8 Re3 Nb3 Kf2 Rg7 Ne6 Rg6 Qa2 Bg7 Nd4 Bf6 Nc2 Na1 Rb5 Be7 Ba3 Qe6 Rgc5 Qf5 Qb2 Kh5 Ra5 Rc7 Rce5 Ra7 Ng5 Nh3+ Ke1 Ra8 Rad5 Ra7 Bc5 Nf2 Nh3 Nh1 Rb3 Rg7 Bcf2 Rg6 Rbe3 Kh6 Nc4 Kh5 Kd2 e1B+ Ke2 Bc3 Nd2 Bh4 Re7 Bcf6 R7e5 B6g5 Ke1 Bf6 Bc4 Be7 Ke2
n1Br1Nrn/1nPR4/2B4K/1b1R1Qp1/pb2qN2/2kb2R1/1n1B2B1/4QN1N b - - 0 1 illegal: No possible last move, all moves rejected
2n2q1R/PN1B1Rn1/2Q3QQ/1K1N4/N2B2Np/1Qp1b1r1/b1n1B1k1/1r2r1r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 e5 Kc4 h5 a4 c5 g4 b6 d4 e4 f4 b3 g6+ Kf6 g7 b2 a5 e3 d6 e2 d5 e1N a6 Ne7 g8B Nec6 d7 Be7 d6 Nd4 g5+ Kg7 a7 Ndc2 f6+ Kg6 f7 Kf5 f8N Ke4 g6 Qc7 d8Q Nd4 g7 Bg4 d7 Qc8 f5 Nec2 f6 Bf3 f7 Ne6 Ne2 Nc6 Qc7 Bg5 d8N Ne7 Ng6 Be3 Kb5 c4 Nb7 Qf8 Ne5 Re8 Ng4 Nc8 Nf4 Bg2 Qdd6 Kf3 Nc3 b1R+ Bb2 Re1 Bd3 Rg1 Na4 Rh6 Rh4 Rg6 Bd4 c3 Nd5 Bh3 Re1 Kg2 Qcc6 Rg5 Bgh7 Rg6 g8Q Ng7 Be2 Rg5 Nh6 Be6 Rf1 Rg3 Bf5 Re7 Ng4 Re8 Kc4 b5+ Kc5 b4 Kb5 b3 Rh3 Bd7 Qg6 b2 Rh1 Be6 Rf3 Qe7 f8Q Bf7 Bd7 b1R+ Nb4 Ba2 Qb3 Qd8 Nd5 Re6 Qf4 Qf8 Qfh6 Re5 Rf7 h4 Rh3 Rg5 Rh1 Rgd1 Rhf1 Re1 R1f6 Rf5 Re6 Rff1 Re8 Rg1 Rd8 Qa3 Rg8 Qf8 Rh8
b2R1Rq1/pBKN1R2/2Q2r1r/nR1B3n/2n2r2/3BrPBN/Q1N3p1/2bk4 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kd4 e5+ Kd5 g5 b4 d6 c4 e4 h4 e3 f3 g3 b6 e2 c6 e1R c7 g2 h5 g4 h6 g3 h7 Bg7 b5 Re6 b7 Re8 b6 Re3 c5 Kg5 f6 Kf4 c6 Qe8 f7 Qf8 Bd3 Qd8 f8R+ Bf5 c8B Bh6 c7 Nc6 b8Q Na5 b7 Bg5 Qd2 Nf6+ Kd4 d5 Kc5 d4 Qa2 Bd7 Na3 Bc6 Be6 Qc8 Rf7 Qg8 Qe8 Rd8 c8B Rd6 b8N Ba8 Nd7 Bh6 Bf1 d3 Bb7 d2 Bd3 d1N Nc2 Nb2 Bed5 Nbc4 Rb1 Bg5 Rb5 Rb6 Rg7 Nh5 Rf7+ Rf6 Qc8 Bh6 Qc6 Qd8 Bb2 Re1 B3e4 Qc8 Ne5 Qg4 Be6 Qg7 Na3 Ke3 Nh3 Ke2 Nc2 g1R Bc1 Qg4 Bf4 Na3 Kd6 N3c4+ Kc7 Rg2 Rg1 Kd1 Bd3 Qg6 Rf8 Qg8 Bd5 Re2 Rd8 Re4 Nd7 Bg5 Be5 Bc1 Rg2 Rg4 Re2 g2 Bg3 Rgf4 Re7 Qg5 Rg7 Re3 Rf7 Rf8 h8R Rh6 Rfh7 R8f6 Rhf8 Qg8 Rhf7
R4nn1/pRrQ4/R2Q1QP1/6pb/BQN1B2b/1Rqr2b1/3N3r/B1b2K1k b - - 0 1 illegal: No proof kernel
2BbRnK1/1b1N4/1N1rr1Q1/1qQRR3/2nNb1q1/Bk1pR1P1/3pB2b/2B5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 c4 e5 b4 h5 f4 a5 g3 h4 g6+ Ke7 b6 Kd6 b5 Kc5 f6 Kb4 b7 h3 b6 a4 f5 h2 c5 a3 g7 a2 f7 Qh4 f6 Qh5 c6 Qh3 c7 Nd7 b8N Bc5 f8B Nh6 g8R Qg4 f7 Nf5 b7 Ne3 Na3 Ra6 Rg5 Rhh6 Ne2 Rhe6 Qc2 Rad6 Nc4 Bb6 Be7 Nf8 Nd7 Bc5 b8R+ Bb7 Rg1 h1B Ncb6 Nc4 Re8 Bf3 c8B Bg2 Qd2+ Kb3 Rh5 Bf3 Qh6 Bh1 Qg6 Bf3 Bf4 Bh1 Rc1 a1Q Re1 Qa4 Bc1 Qa5 Rg2 Qb5 Rf2 Bg2 Rf3 Bh1 Re3 Bf3 Ng1 Bg2 Nf3 e4+ Ke2+ d3+ Kf2 d4 Be2 Nh7 f8Q Bh1 Rd5 Bg2 Qff5 Nf8 Na4 Bb6 Qfh5 Bd8 Nab6 Kc2 Qhg5 d2 Q5f5 d3 Nd4+ Kc3 Qe5 Rc6 Qc7 Bh1 Bea3 Rcd6 Qc5 Bg2 Kg1 Bf3 Kh2 Bg2 Rf3 e3 Rff5 Be4 Rg5 Qf4 Kh3 Qf3 Kh4 Qf4+ Bg4 e2 Kh5 Qf5 Kh6 Qf4 Rh1 e1B Kg7 Bf2 Rge5 Bg1 Be2 Bh2 Kg8 Qg4 Rf1 Qb3 Rf3 Qb5 Nf5 Kc2 Re3 Kb3 Nd4+
3bk1QB/1q1RNNB1/2rQ4/b1rR4/q1Bb2np/1nB5/pRQ4P/1R1bK3 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 c4 a5 e4 g5 f4 d5 b6 h5 e6 a4 b7 g3 e7 a3 c6 g2 f5 d4 c7 a2 e5 d3 f6 g4 f7+ Kd7 e8R g3 e6+ Kc6 c5 h4 e7 Kd7 c6+ Kd6 Bd2 Bg7 f8B Ra5 Bc3 Bf6 Bg7 Nd7 b8B Nh6 Nh3 g1B Ng5 g2 Nf7+ Ke6 Ba7 Ng4 Bad4 Rc5 Be5 Ba6 c8Q Rh6 c7 Bd4 Rh8 g1B e8Q+ Qe7 Rh7 Bc4 Qg8 Bb3 Qc2 Bge3 Qcf8 Bfg5 c8R d2+ Ke2 Bf2 Rb8 Be1 Bh8 Ba4 Beg7 Rf6 Rb2 Rg6 Kf3 d1Q+ Kg2 Bb3 Rh5 Bgf6 Rd5 Bd2 Bc4 Bfg5 Nh6+ Qf7 Qb8 Ke7 Qf4 Be1 Kf1 Rgc6 Rg1 Ba4 Rg2 Bgf6 Rd2 Bb3 Rf5 Qd5 Nf7 Qe4 Rd5 Qh7 Bf8+ Ke8 Qd6 Bd8 Bfg7+ Nf8 Rf2 Qe4 Rf4 Qe7 Rf2 Qb7 Rd2 Ba4 Na3 Bb3 Rab1 Ba4 Nb5 Bb3 Qgh7 Ne6 Na7 Ba4 Nc8 Bb3 Qcd3 Qc2 Q3g3 Qe4 Qf5 Bd1 Ne7 Qc2 Qg1 Qa4 Qff2 Be5 Qf5 Nd4 Qc2 Nb3 Qg2 Bd4 Rd3 Bef2 Qg1 Bfe3 Ke1 Bg5 Qgg2 Ba5 Bh6 Qa7 Ng8 Bgd8 Rg5 Bg1 Qc7 Be7 Rd7 Bd4 Qd6 Nf2 Rd5 Bed8 Ne7 Qb7 Qg5 Ng4 Bf8 Be5 Qg8 Bd4 Bfg7#
1R1r4/B2nn2B/kN3rB1/q3NnK1/nNp1R1R1/b2P1bN1/5q1p/1Q2Q2B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 b4 c5 g4 Kc7 e4 Kb7 d3 h5 b6 a5 e5 c4 e6 a4 g6 h4 d6 a3 e7 h3 e8Q h2 g5 a2 b5 Ra6 d7 Ra7 g7 Ra5 g6 Rh6 Ne2 Rh5 Be3 Qe7 d8N+ Ka8 Nc6 Kb7 Na3 Ra6 Nc2 Qd8 Bg2 Qd4 Rg1 Rh8 Bh1 Qc5 Rg4 Nd7 Ng3 Be7 Rc1 a1N Qg1 Qa3 Re1 Qa5 Re2 Bc5 Qb1 Ba3 N2b4 Nb3 Qe6 Ne7 g8B Nbc5 g7 Na4 Bf7 Rd8 g8B Ndc5 Bg6 Nd7 Kg2 f3+ Kh3 f2 Kh4 f1N Kg5 f4 B8h7 f3 Qe4 f2 Ne5+ Kb8 Bd4 Ne3 b7 f1Q Bb6 Nf6 Ba7+ Kc7 b8N Qf2 Nbd7 N3f5 Re3 Bb7 b6+ Kc8 Re2 Bc6 Qe3 Bf3 b7+ Kc7 b8R Rc6 Ra8 Kb7 Nb6 Nd7 Qec1 Rf6 Ree4 Rg8 Qe1 Rd8 Nc2 Ka6 Rc8 Qb4 Rb8 Qa5 Nb4+
k3N2B/B2R1b2/1r1qq1Np/b1n3P1/2N1BRbQ/2pB1N1R/4nbr1/K4Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 f5 Kc2 a5 b4 c5 Kb2 Kc7 g4 Kb7 e4 f3 b6 a4 e5 c4 e6 h6 b5 f2 d6 f4 g6 f3 d7 Bc5 d5 Nc6 e7 Rb8 e8N Bd6 g7 Bb4 d6 Na5 Bd3 f1B Nd2 f2 Rh3 Qh4 d8Q Ka8 d7 Nc6 Ngf3 Qg3 Qh4 Nf6 g8B Ne4 d8R Nd4 Rd7 Qd6 Bh7 Nc5 Bhe4+ Rb7 Ra2 a3+ Ka1 Ne2 Bb2 Rg8 Bh8 Ba5 Qc1 Bg2 Qf1 Bh1 Rb2 a2 Rb4 Rg6 Qd1 f1Q g5 Qf2 Qf1 Qe3 Rh7 Bg4 Rd7 Qef4 Ra4 Qf5 Rb4 Qfe6 Ra4 Kb8 Rb4 Rc7 b7 Ka7 b8N Rb7 b6+ Ka8 Kb2 a1B+ Ka2 Bd4 Nc6 c3+ Nc4 Bg2 Nce5 Bf2 Ka1 Rf6 Ng6 Bh1 Nfe5 Rf3 Ra4 Rg3 Nf3 Rg2 Bf5 Rc7 Bfe4+ Rc6 b7+ Kb8 Bf5 Rb6 Rb4 Ka7 b8B+ Ka8 Ba7 Rh2 Nd4 Bd5 Bfe4 Rg2 Nf3 Qc6 Ne3 Qed6 Rd4 Bf7 Nc4 Qcd5 Bf5 Q5e5 Rf4 Qee6 Bfe4+
Q3N3/r1rBQ2n/qR1R3p/2p1b1k1/QBQ3r1/1KPNn1b1/B2B4/2Rr1q2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 Kd2 Kf7 Kc3 Kg6 b4 d5 e4 a5 f4 d4+ Kb3 d3 g5 h6 b6 c6 b5 d2 c3 Be7 f5+ Kg7 f6+ Kg6 b7 Bb4 f7 Bc5 f8B Qd6 e6 Qd3 e5 Qd6 b6 Nf6 e7 Nd5 e8B+ Kf5 g6 Nd7 b8R Qc7 g7 Kf4 g8Q Rh7 b7 Be3 e6 Ra7 e7 Qc8 Na3 N7f6 Bc4 Bd4 Nb5 Ne3 Nf3 g1B Nc7 g2 Bd7 Bf2 e8Q g1R Ne5 Rg4 Qe7 Bg3 Ne8 Rhg7 Ra4 Kg5 Nd3 Bde5 Qc2 d1Q Bd2 Qf1 Qge6 Rh7 Rb4 Rf7 Rb6 Rh7 Ra8 Rg7 b8Q Qa6 Qb7 Rf7 Rd8 a4+ Kb2 a3+ Kb3 a2 Qa8 a1R Qd5 Qf3 Rc1 Qf1 Qa2 Rg7 Qa4 Rh7 Qe4 Rf7 Bd5 Rg7 Qec4 Rc7 Qe6 Nh7 Bb4 c5 Qe7+ Nf6 Rc2 Rd1 Rc1 Rh7 B7e6 Rg7 Rdd6 Ra7 Bd7 Rf7 Qe6 Nh7 Qe7+ Rf6 Kb2 Qf5 Qd4 Qb7 Rdc6 Qa6 Ba2 Qf3 Qc4 Qf1 Qef7 Rg6 Kb3 Rd6 Be6 Rd8 Rd6 Rc8 Bd7 Rcc7 Qe7+
1r3bN1/NR6/1n1PNQKN/4pp2/1R2rq2/1bBRn1bQ/3B1kq1/3Rb2B b - - 0 1 illegal: No proof kernel
1nK1QbkQ/3N4/1Rp1r1B1/BpNb2q1/1Q1Q4/B5qR/PnBbb2N/2r5 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 e5 Ke4 h5 g4 h4 f4 b6 d4 c6 d6 b3 f6 b2 d5 h3 f5 h2 d7 Ne7 d6 Na6 g6+ Kg8 g5 Bg7 f7+ Kf8 Qd4 Ra7 Nf3 Rh3 Nc3 b1B+ Bd3 Bc2 Ba3 Rh8 Na4 Nb8 Nc5 Bf6 Rab1 Kg7 f8N Qc7 d8Q Nd5 d7 Ne3 Qe8 Bd1 d8B Be2 Nfd7 Nd1 Bc2 Be7 Rb2 Rf8 f6+ Kg8 Kf5 e4 Ke6 e3 g7 Qg3 Rb3 Nb2 Rb1 h1Q Nh2 Qf1 Rd3 Qfg1 f7+ Kh7 Bc7 Rg8 f8Q Ra5 Qff4 Bf8 Qb4 Rh8 g8B+ Kg7 g6 Rh6 Bf7 Kh8 Na4 Rc5 Qf2 Rc3 Nc5 Qg5 Qfh4 Q1g3 Qhg4 Ba6 Qge4 Bc4+ Qd5 Rh5 g7+ Kh7 Bg6+ Kg8 Bd8 Rh6 Bc7 Bf1 Bd8 e2 Re3 e1B Rf3 Bb5 Qdd4 Bfe2 Re3 Bd2 Rd3 Qe1 Rh3 Qeg3 Bb3 Rh4 Qa4 Re4+ Ne5 Rc1 Bc2 Nd1 Qa5 Ba6 Rb5 Nb2 Qab4 Rf4 Bc7 Rf7 Bd8 Re7+ Kd6 Re6+ Kc7 Rd6 Ned7 Bc8 Ne5 Be6 Ned7 Bd5 Kc8 Re6 Ra5 b5 Ra6 Rb1 Ba5 Rc1 Rb6 Qf5 Bh5 Kh7 g8Q+ Kh6 Qgg4 Kh7 Qh4 Kg8 Bg6 Qfg5 Qhh8#
7n/3RR2b/QpBnnk2/r1Q2NqP/2R1Nrq1/b1B2RB1/Q5p1/K4n1B b - - 0 1 illegal: No possible last move
5kQQ/5bbp/nR2q3/1NnPB3/2Q3rN/2b2N1p/r2Rq3/NRK2RbB b - - 0 1 illegal: No possible last move
1bBKN3/B3r2p/3nQ1pP/1Bb3R1/1nr1qqQR/3R2r1/N3k3/N1RN1r2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 exf4 cxd5 f3 Na3 f4 Nb1 Bf5 gxf5 Qd6 Ra3 Qe7 Ra1 Qd8 Kf2 Kd7 d4 Kd6 e4 c5 b4 a5 h4 c4 h5 a4 f6 g6 e5+ Kc7 b6+ Kb7 f7 Ka6 b7 Kb5 h6 a3 e6 a2 d6 Ne7 d5 Bg7 f8R Nec6 e7 Bc3 e8B Bd4+ Be3 Na6 b8N Qg5 d7 Nc5 d8N Nb3 d6 Na5 d7 Be5 Nb7 Bb2 d8R Qf6 Nd2 Ra6 Nb3 Rb6 Nd6+ Ka4 b5 Kb4 Rc1 a1Q Bd7 c3 Ne8 c2 Ne2 Kc4 Rh4 Qb1 Na1 Ba3 Bc8 Rb7 b6 Nb4 Rd3 Re7 Nc6 Nb7 Nc3 Nd6 b7 Qf5 b8Q Qe4 Ke1 f2+ Kd2 f3 Qb6 Qf4 Rf5 Rg8 Be2 f1R Rg5 Rg1 Bf1 f2 Qg4 Rg3 Nd1 Rgg7 Ke2 Rc7 Kd2 Rge7 Be2 Na6 Nb4 f1R Na2 Bc5 Qc6 Qb7 Qcd7 Qbe4 Qde6+ Kb5 Kc3 Nb4 Rb1 c1B Bd4 Ba3 Rc1 Nf5 Kb3 Bd6 Ba7 Rc4 Bb8 Kc5 Ka4 Be5 Ka5 Nd6 Rb3 Kd4 Kb6 Na6 Ba7 Nb4 Ndc3 Ke3 Nd1+ Kd2 Re3 Rd4 Bb5 Rc4 Rf3 Ke2 Qd7 Nc6 Kc7 Bc5 Qe6 Nb4 Rd3 Nf5+ Kd8 Bb8 Qd4 Nd6 Qg1 Qf7 Qg2+ Qf2 Qgh3 Qf4 Qhg4+
4Rk2/RR2r2p/3b1p1N/n2rq1n1/B1q1QBbP/2bB4/1QK2NQ1/4BQ1b b - - 0 1 illegal: No possible last move, all moves rejected
5RqB/3bNrp1/PK3nBB/1N5r/q2kN3/p1R1RRQr/1n3bQB/1r6 b - - 0 1 illegal: No proof kernel
1K1RQbBB/nQ1q1p1R/1QB1pr2/qq5r/5R2/3q4/B1Q1NP2/N1nb2k1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 a5 c4+ Ke6 h4 g6 b6 a4 d5+ Kf6 c6 e3 c5 a3 b7 e2 d6 e1Q d7 a2 c7 Na6 b8Q Qa5 h6 Bb7 c8B Qb4+ Bc4 Qc3 h7 Qb3 c6 Qdb6 d8R Qb2 h5 Qa3 h6 Ra7 c7 Qd3 Nd2 Nc5 Qc2 Qb5 Bf5 Nb3 c8B Bf3 Bcd7 Ra6 Qb7 Bd1 Bc6 Rb6 Ba3 Nc1 Ne2 Qd7 Nb3 g5+ Ke4 g4 Bb2+ Kg5 Rh4 g3 Rf4 g2 Bg7 Qa4 Ke5 g1Q Rb1 Qg3 Na1 Qga3 Rb3 Ra6 Rh3 Qad3 Bce6 Qab5+ Bed5 e6 Be4 Ne7 Rh2 Rg8 h8Q Nc8 h7 Na7 Qb6 Qh3 Bf6+ Kh5 Qg7 Ra5 Qg2 Rg6 h8Q+ Rh6 Bh7 Rg6 Bg7 Rf6 Qh1 Kg5 Bg8 Qf3 Rh7 Qfd3 Rf3 Kg4 Rf5 Rh6 Qe4+ Kh3 Rf4 Kh2 Qb4 Qe8 Qe7 Rh5+ Kd6 Ra3 Kc7 Qd7+ Kb8 Ra4 Nb3 a1Q Qb4 Qac3 Na1 Qcd2 Qbb2 Qda5 Ba2 Rd4 Qbb1 Rd5 Bc3 Rf5 Qb7 Rf6 Qbb2 Qbf5 Q2b6 Qfb5 Qb2 Bc5 Qg7 Rfh6 Qc2 Be7 Qg5 Bf8 Bh8 Rg6 Qe7 Rf6 Rf3 Kh1 Qe8 Kg2 Rf4+ Kf1 Nd4 Kg1 Ne2+
q3B1n1/q2rprNR/1B5N/q1b2p1q/4PQ2/2n3Rk/NK2R1Nb/3B1QR1 b - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bg7 g4 Qd6 h3 Bf8 g5 Bg4 hxg4 Qd8 b4 Kd7 e4 c5 d4 a5 Kd2 h5 Kc2 f5 b6 c4 b5 c3 d6 Ke6 g6 a4 b7 a3 g7 f3 g5 f2 g6 h4 b6 a2 d7 h3 d5+ Ke5 d6 h2 Be3 Ra6 Ne2 Rh7 Nf4 Qc7 d8R Kf6 d7 Kg5 Bb5 Kh4 Qf1 Nf6 g8B Nc6 b8Q Qa7 b7 Rf7 Bb6 Bg7 Ng2+ Kh3 Qf4 Nb4+ Kc1 c2 b8R Ra3 Kb2 Rd3 Nc3 Nbd5 Rdc8 Qa5 d8N Qa8 Rg1 h1Q Ne6 Rd2 Re1 c1B+ Ka1 Qh2 Be8 Ba3 Re2 Bc5 Rc6 Bh8 g7 Rd4 Kb2 a1Q+ Kc2 Q1a6 Kb2 Qa5 Na2 Nc3 Rd8 Rd7 Rd6 Qg3 Rd3 Qf3 Rc8 Rf8 Bgf7 Ng8 Bh5 Rf7 Rc6 Nh6 g8N Be5 Ng7 Q8a7 Nf6 Ng8 Ng4 Qa8 Nh6 Bc7 Qd1 f1Q Re6 Qf2 Qf1 Qh4 Rg6 Qe3 Bf3 Qh5 Rg3+ Kh2 Red2 Qd4 Bd1 Qda4 Re2 Q5a7 Rd6 Q4a5 Rdg6 B7d6 Ne6 Be5 Rg7 Bed6 Rh7 Bc7 Rg6+ Kh3 Ng7 B7d6 Qd2 Bg3 Qdf4 Bh2 Rg3+
1Qq1b3/r2p3B/8/2rBBPnR/4pb1n/n1RN1q2/KQ1NNN2/2Q2Bnk b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 a5 Kc2 e5 Kb3 h5 g4 d3 f4 d2 b6 h4 b7 a4+ Ka2 a3 b4 h3 b5 h2 b6 Ra6 g6+ Kf6 g7 Ra7 c5 Nh6 g8B Nf7 c6 Bh6 c7 Nc6 b8Q Ng5 b7 Ne7 Bh7 Ng6 Ne2 Nh4 Bb2 Re8 Qc1 d1N Nd2 Nf2 Rb1 Nfh3 Ba1 Ng1 Rb3 Re6 Rc3 Rc6 Bb2 Rc5 Ba1 Ke7 f6+ Ke6 f7 Kd5 f8N e4 f5 Ke5 Ne6 Qf8 N6f4 Qe8 Kb3 a2 Nh3 Qf8 Nf2 Qh8 Qb2 Qf8 Nc1 Kf4 Ncd3+ Kg3 Qc2 N5f3 Qb2 Bf4 g5 Qe8 g6 Ng5 g7 Qd8 Be2 Kg2 g8B Qe8 Bd5 Qf8 Qa8 Qe8 b8N Ba6 Nc6 Qc8 Nd4 Bc4+ Kb4 Bb3 Qb8 Bc4 Bc6 Be6 Bd5 Bf7 Kb3 Be8 Qc1 Qa6 c8Q Qc6 Qa6 Qc8 Bb2 a1N+ Ka2 Nc2 Qa3 Rb7 Qb4 Na3 Ba1 Ra7 Qbb2 N1f3 Re1 h1Q Bf1+ Kh2 Re3 Ng1 Ne2 Qg2 Rg3 Nf7 Rg5 Qf3 Rh5 Ng5 Q2b5 Qa6 Rc2 Qc8 Be5 Qg2 Rc3 Qf3 Nh3 Kh1 Q5b7 Bg6 Qbb2 Be8 Nhf2+
1BKQR3/2p2nb1/1k3QQR/r6r/2P1Nq2/nn2NB2/Q1Rp4/b1nN2qR b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 Kd2 d5 Ke3 Kd7 Kf4 a5 Kf5 h5 c4 h4 b4 d4 e4 h3 f4 d3 b6 Kc6 Ke6 h2 g5 a4 b7 a3 g6 a2 b5+ Kb6 g7 Na6 b8Q+ Ka5 f5 Qh4 Kd7 Qg5 f6 Bd6 b6 Bb4 f7 Be7 f8Q Ra7 e6 Bd8 e7 Qf6 e8R Ra8 b7 Be7 e5 Qf4 e6 Qg4 Qf6 Nb4 Be3 d2 Na3 Nd5 Be2 Qf4 Qb1 Rh7 Nh3 g1B Bf3 g2 Nf2 Nb4 Ba7 Nc2 Kc8 Bf8 e7 Nh6 g8Q Nf7 Nd1 Bd4 Qgg6 g1Q Qb2 Bc3 Rc1 a1N Qa2 Bg7 Rh8 Bb2 e8N Rh5 Nd6 Nb3 Rh7 Ba1 Rh6 Ncd4 Rc3 Nb5 Nc2+ Na3 Nce3 Ka6 Rc2 Ka5 Kd7 Ka6 Qbd8 Ka5 Bb8 Kb6 Kc8 Raa5 Qe8 Qgg5 Re1 h1N Qed8 Nf2 Rh1 Nd3 Ba7+ Ka6 b8R Ndc1 Ra8 Qg2 Bb8+ Kb6 Ra7 Rag5 Ra5 Rf5 Re5 Qg1 Re8 Ra5 Ne4+
r1b1R1QK/p4BrB/1B2Rp2/B5q1/1qn1r1NP/k5Q1/2n2b2/r1NQQ1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 g5 d4 c5 e4 f3 b6 f2 d6 c4 d5 g4 d7 c3 b7 g3 d6 c2 h6 g2 h7 Kb3 Bd3 f1R Na3 Qc7 d8Q Bd7 Qe1 Bh6 Ne2 g1Q Nc4 Qgb6 Bd2 c1R Ra6 Bc8 Ba5 Be3 Rg1 Ka4 b4 Nh6 b5 Rg8 h8R Qbc6 b6 Rc2 Nc1 Rg6 Re8 Bg5 Ne3 Rc4 Ng4 Rg7 Qd7 Bf4+ Kf6 Rb4 e5 Nf5 e6 Ne3 e7 Rd4 Bh7 Re4 Qd8 Qc4 d7 Nc6 b8Q Qb4 b7 Ne5 Re6 Qc2 Qd6 Qcb2 b8Q Qg2 Qdd1+ Ka3 Qdc7 Nc2 d8B Nc4 Qcd6 Qe2 Bdb6 Be3+ Qf4 Bf2 Qg5 Rg8 Qg3+ Qe3 Qg6 Rf8 Kg7 f6 Qg5 Rf7+ Kh8 Rg7 Qg6 Qbb3 Qf7 Qg5 Qg8 Qc3 Rf8 Qb3 e8B Qc3 Bf7 Qb3 Qb8 Qb4 Rfe8 Re2 Nd3 Qbd2 Qc1+ Nb2 Qg3 Qb4 Qed2 Re4 Qb1 Rd1 Qe1 Nc4 Qa1+ Kb3 Qd4 Ra1 Qd8 Ka3 Nc1+ Qc3 Qdd1 Qb3 Nd3 Qb4 Nc1+
Q1K1k1b1/5R2/2p1NB1q/RQPB1BnN/pr2N1Q1/q5q1/3Q3N/3rb1br b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Na6 h3 Nc5 h4 Ne4 Bd2 fxg4 Bc1 g3 Nd2 g4 Nb1 Ng5 hxg5 Bg7 Qd4 Bh6 Qd1 Bf8 Kd2 a5 Ke3 d5 Kd4 h5 e4 c6 f4 h4 c4 g2 b4 g3 f5 h3 g6 h2 e6 Ke7 Ke5 d4 g7 d3 b6 d2 c5 Qe8 b7 Bd7 b8Q Nf6 g8Q Qd8 b5 Rh3 b6 Be8 b7 Qc8 Bc4 Ra7 Bb2 Kd8 e7+ Kd7 Qa8 Nd5 b8Q Bf7 e8N Bg7+ f6 Rb7 Nf3 g1B Nc3 Bf2 Rf1 h1R Nh2 Ne7 Bd5 Rb4 Qb5 g2 Qde2 d1Q Qd2 Kd8 Kd6 g1Q e5 Qc1 e6 Rd3 Ne4 Ng6 Ra2 Bh8 Ng7+ Nf8 Nh5 Ke8 e7 Be1 Qg4 Ne6 Rf2 Bg8 Be5 Kf7 e8B+ Kf8 f7 Qa6 Kd7 Qg3 Ra1 Ng5 Bf6 Qa7+ Kc8 a4 Rb1 Qa3 Bd7 Bg7 Bf5 Qe7 Bd4 Qf6 Rb3 Ke7 f8N Qh6 Ne6 Ke8 Bc3 Be5 Bb2 Bf4 Bf6 Be3 Qc2 Nh7 Be5 Qb2 Qbb7 Rc4 Bg6+ Bf7 Rb5 Qa3 Ra5 Rd1 Qb5 Rb4 Qd2 Ng5 Bh7 Bg8 Rf7 B3f2 Bf6 Bg1 Bf5
2r5/R2k1r1B/pp3B2/1B1qR3/PbRr1n1K/R4rQN/nnQN3B/1r3N2 b - - 0 1 illegal: No possible last move
4B1rQ/1R1bn2K/NR6/3q2pB/1Nn1p1B1/4B3/1NkrRrP1/2rN1rnQ b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Bg7 h6 Ng8 hxg7 Qb6 Bg5 Qc7 Bc1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 a5 f4 e5 b4 h5 c4 h4 b6 a4 b7 a3 b5 d3 b6 a2 c5 g5 c6 d6 c7 h3 Be2 d2 Nf3 h2 Ne1 Rh6 Nc3 Nc6 b8N Nce7 b7 Bd7 Nd3 Be6 c8B Nc6 Re1 h1R Rb1 Nge7 g8B a1R Bf7 Na7 Nc6 Nb5 b8N Na3 Rb7 Nc4 Ncb4 Qd7 Nb2 d5+ Kf3 d4 Kg4 e4 N8a6 d3 Bf3 R1h3 Re2 Qd5 Qe1 d1N Qh1 Qb5 Bd7 Rg8 Bde8 Bd7 Bd2 Rc1 Be3 Na3 Be6 d2 B6f7 Rhg6 Be6 Rg3+ Kh5 Nf2 B6f7 d1R Bg4 Rd4 Ncd1 R6g7 Kh6 Rf3 Bh3 Qc5 Bg4 Qc6 Bg6 Nh3 Bgf7 Nd5 Bg6 Rd2 Bgf7 Rf1 Bg6 Ke7 f6+ Kd6 f7 Ne7 f8R Nc4 Rf5 Rf8 Rfb5 Ng1 R5b6 Rgf7 f5 Ke5 f6 Rg8 B6h5 Qd5 Bf2 Rff8 f7 Kf4 Kh7 Ke5 Bg3+ Kd4 Bd6 Qa5 Bf4 Qd5 Nf2 Kc3 Be3 Kb3 Nfd1 Rg6 Bf5 Rfg8 Bfg4 Rgf6 Bh3 R6f2 f8Q Rg6 Qh8 Rg8 N4d3+ Kc2 Bf5 Qd6 Bfg4 Qd5 Ndb4+
2RRr1qB/pbn1r3/1N1nn1p1/1B6/K2RBN2/3q1NP1/5QRN/kQn2n2 b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf6 h6 Bg7 hxg7 Kd7 Nf3 Ke7 Ng1 Ke8 e4 Kd7 b4 Kd6 d4 f5 Kd2 c5 Kc2 h5 Kb3 h4 g3 c4+ Ka4 h3 e5+ Kd7 b6 f3 b7 c3 e6+ Kd6 b5 c2 b6 f2 e7 h2 e8Q f4 Qf8+ Qe7 Bb2 c1N Ra2 f3 Nd2 Nd3 Qb1 Nf4 Bb5 Nh6 g8B Nf7 Nf1 Na6 b8N Rh5 b7 Rh7 Nd7 Ne6 b8R Bb7 Nb6 Nac7 Rc8 Rg7 Nh3 Rb8 Ng5 Rh7 Rg1 h1N Nh2 f1N Rg2 Nf2 Ba1 Nd3 Rad2 f2 Ngf3 Nc1 Rd1 Ne5 Qf4 Qe8 Qe3 Ke7 d6+ Kf6 d5 Re7 Rd4 Nc4 d7 Nd6 d8N Qf8 Bf7 Qg8 Bfe8 Ra8 Bec6 Rb8 Rd3+ Kf5 Bh8 Ra8 Qc5 Ke4 Rd4+ Ke3 Nf7 Rb8 N7e5 Ra8 Nd3 Ke2 Qc3 Kd1 Qcb2 Rb8 Rf8 Rbe8 Nf4+ Nd2 Q2a2 f1Q Qab2 Qd3 Q2a2 N6c4 d6 Nf1 d7 Nd6 Qf2 Nd2 Qb4 Kc2 Qb1+ Kc3 d8R Nf1 Bd5 Ne2 Qbe1+ Kb2 Qb4+ Ka1 Be4 Nc1 Rc8 Rh7 Qbe1 Ree7 Rfd8 Re8 Qb4 Rhe7 Qb1+
4B1b1/b3K2N/N6p/1br1Q2P/R1rqp2B/2qR3b/1QQRn3/k1r1RNN1 b - - 0 1 illegal: No possible last move
Qb4b1/1nqpqkQ1/1r1P2NR/1p3N2/1Bb2R2/K7/1N1rB1Q1/RNq2Q1b b - - 0 1 legal: proof: e4 g5 b4 f5 exf5 b5 h4 Na6 hxg5 Nc5 c4 Na4 c5 Nb6 cxb6 a5 Bc4 axb4 Be2 Bh6 Bf1 Bf8 d4 c5 Kd2 e5 Kc2 h5 Kb2 h4 g4 h3 f4 b3 a4 h2 d5 e4 b7 c4 b8N e3 f6 e2 a5 e1Q d6 c3+ Ka3 b2 a6 c2 f5 Qd2 a7 Qe7 g6 Qg7 g5 Qf7 g7 Qd4 g6 Qe7 Nf3 Qd5 Nd4 Bb7 Bd2 c1Q Bb4 Qdc6 Be2 Qc7 Nbc6 Nh6 g8Q Nf7 g7 Nd8 Na5 Bd5 Qf1 Nb7 Nc4 Rb8 a8Q Rh6 Qh8 Bg8 Qh7 Rg6 Qhh3 Kf7 Qhg2 Bh7 g8R Bg7 Rh8 Bg8 Rh4 Bh6 Rg4 Be3 Rf4 Kf8 f7 Re6 Nc3 b1B+ Nb2 Bd3 Nb1 Rf6 Kb3 Rg6 Ka3 Kg7 f8N Bdc4 f6+ Kf7 Nf5 Ba7 Ng3 Rg5 Ng6 Rd5 Nf5 Rd2 Qff2 Ke6 f7 Kf6 f8Q+ Ke6 Rd1 h1B Qh6 Kf7 Qff1 Nd8 Qhg5 Rb6 Qh6 Bb8 Qg7+ Ke8 Re1 Nb7 Rd1 Rd4 Rd3 Rd5 Rh3 Rd2 Qe5 Kf7 Rh6 Rc6 Qc3 Rb6 Qg7+
B4q2/r1qR1n2/2Bp1B2/qQ2RQ2/3p3k/Q1nP4/1R1rNN1K/bq1B1Q1n b - - 0 1 illegal: No proof kernel
kr6/2qRR1N1/1np3r1/Kpq2bnQ/1P4Rq/Q1B4N/B1Q1N3/Rr4rN b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 c4 gxh4 cxd5 f5 exf5 Bg7 a5 Bc3 Ra2 Bd4 Ra1 Bb6 axb6 Bd7 Na3 Be6 Nb1 Bc8 Ra4 Kd7 f4 h5 g4 a5 d4 e5 Kd2 e4 Kc3 e3 g5 e2 f6 e1R f7 h3 f8Q h4 f5 h2 d6 Kc6 d5+ Kb7 d7 c6 f6 h3 f7 Rh4 g6 Qe8 d8Q Na6 d6 Nc7 g7 Rb8 d7 Ne6 Qh5 Ree4 Bd2 Rhf4 Bc4 Nf6 g8N Re5 Ne7 Rg5 Nf5 Rd4 Ng3 Qe7 b3 Ka8 b7+ Ka7 Bd5 Ra8 b8R Rg6 Be1 Rd2 Rg4 a4 Rb6 Rb8 Rb7+ Ka8 Bc4 Qe8 Kb4 a3 Nc3 a2 Ka5 a1R+ Qa3 Rb2 f8N Qf7 b4 Ng5 Ba2 Nd5 Nce2 Nb6 Bc3 Qe7 Ne6 Qc5 Qe7 Rd1 d8R Bd7 Ng7 Bf5 Nf3 Rc1 Rf1 h1Q Nfg1 h2 Qe4 Qg2 Re1 h1Q Re7 Qh4 Rdd7 Qgh2 Nh1 Qc7 Nh3 Rb3 Qc2 Rd1 Rf1 Rb2 Rf3 Rg1 Rf1 Rb3 Ra1 Rb2 Nhf4 Rbb1 Nh3
1B3rrR/N2q1BpQ/1Bq5/1kN2rPK/3Q1Q2/3N1p1n/1n3RrQ/1b3Nq1 b - - 0 1 illegal: No proof kernel
rn1rrB2/Nn1k2p1/2RQR3/qpqB1QPN/B7/B2br2N/2RR4/n5K1 b - - 0 1 illegal: No proof kernel
2R2qn1/K1k5/2Bppr2/4BrR1/1rR1P1N1/1qN2n1B/R1Q1n1B1/2b2NrQ b - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Qd8 g6 Bb7 g5 Bf3 h3 Bg4 hxg4 Qc8 Ra4 Qc7 Ra1 Qd8 Kd2 a5 Kd3 f5 Kc4 h5 Kc5 f4 c4 d3 e4 h4 b4 d2 g7 a4 b6 f3 b7 h3 g6 a3 b5 h2 g5 f2 b6 a2 Qc2 d1R Nf3 Re1 Bf4 Ra4 Nc3 Ra3 Bg2 f1N Nd2 Re2 Be5 Ne3 Nf1 Nc6 b8Q Rd2 b7 Nf6 g8R Rd4 g7 Ra6 g6 Ned5 Qc8 Rh7 b8R Nf4 Qb7 Rh4 Rc8 Rh5 Qbb1 Rf5 Kb5 Ne2 c5 Rda4 Rg1 h1Q Rh8 d6 g8B Kd7 g7 Ra8 Bd5 Qh3 g8N Bh6 Qbd1 Bg5 Nh6 Bc1 Ng4 Qf8 Kb6 Ncd4 Rh7 Ng8 Bc6+ Ke6 Rh5 Nf3 Rg5 Rf6 Qe1 R8a5 Qh4 Qg3 Qh1 Rc4 Kb7 Rb5+ Ka7 Rcb4 Rb1 Qh3 Rb2 a1R+ Ra2 Qg3 Be8 Rab1 c6 Ra1 c7 Rc5 Bf7+ Kd7 Bd5 Qh3 Rb8 Rcb5 c8B+ Kc7 Bf5 e6 Rc8+ Kd7 Rc4 Rab1 Bc6+ Kc7 Ngh2 Qg3 Bfh3 Rd5 Ng4 Rc5 Bf4 Rcf5 Be5 Ne1 Nd1 Qb3 Nc3 Nf3 Ng3 Bf4 Rc1 Bd2 Nf1 Ra1 Rd1 Bc1 Rd5 Rb1 Rdc5 Bf4 Nfe3 Rg1 Ba4+ Kd8 Nf1 Bc1 Rc7 Bf4 Bc6 Bc1 Rb7 Kc8 Rb8+ Kc7 Rc8+
3BN2q/R6p/1qrbp1BK/Qr1bN2B/4QRN1/1qk3BP/2Nq1Qnr/8 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 gxf4 d6 b5 e4 b4 d4 b3 e5 Nf6 e6 Nbd7 axb3 Ng8 b4 Bg7 exd7+ Kf8 b5 Bh6 d5 Kg7 Nd2 Kf6 Nb1 Bf8 Kd2 Ke5 g4 Kd4 b4 f5 h3 a5 b6 c5 b7 e6 b8N c4 g5 f3 b5 a4 b6 f2 g6 f4 g7 f3 b7 a3 Be2 f1Q Na6 f2 b8N a2 Nc6+ Ke4 Qa4 Qh4 d8Q Qg3 d7 Bd6 Na3 Rb8 Nc7 Be7 d6 Qh2 Qf8 Bb7 d8Q Nf6 g8B Nd5 d7 Ne3 Nf3 Qfg1 Bf7 Qhg3 Nh2 f1R Beh5 Bd6 Ng4 Ng2 Ke2 Qc5 Bf4 Qb3 Bg3 Ba8 Kd2 Rb5 Be8 Re1 Rf1 Qa7 Rf5 Rh1 Beg6 Rh2 Qf7 Rg8 Qff6 Rg7 Ne8 Bb7 Qa8 Qb6 d8B Rc7 Rf2+ Kd5 Ke2 c3 Kf3 Kc5 Q4a6 c2+ Ke4 c1Q Nc2 Kc4 Rf1 Bf8 Qf7 Ne3 Kf4 Qd2 Qa3 Bc5 Kg5 Bd6+ Kh6 Rc8 Qf3 Ng2+ Qe3 Rc7 Rf7 Rc8 Raf1 a1Q Q3a5 Qh8 R1f4+ Qbd4 Qf2 Rc7 Q5a6 Kc3 Nce5 Qb6 Qa4 Rc8 Qe4 Bd5 Qa6 Rcc5 Ra7 Rc6 Qa5+
5QqQ/p7/B1Bb1nrr/2B1Nk1q/2r1qQ1n/1pN4R/P3rN2/K1B2RN1 b - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 Qf6 h3 Qd8 Kd2 g5 Ba3 g3 Bg2 g4 Bf3 b6 Ke1 Bb7 Bg2 Bf3 Bf1 g2 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 Kd2 Kf7 Kc3 Ke6 Kb2 h5 f4 d5 c4 b5 e4 b4 c6 b3 c7 d4 c8Q+ Nd7 c5 d3 g5 h4 g6 h3 f5+ Ke7 g7 d2 f6+ Ke6 c6 h2 f7 Rb8 c7 Bb4 f8B Rh7 Bc5 Nh6 g8Q+ Rf7 Qdg4+ Nf5 Nc3 d1Q Qf8 Qg5 Qf4 Qgh5 Ba6 Nh4 Rb1 Qh7 Ka1 Qh8 Qce8+ Re7 c8N Ra8 Nd6 Nf6 Nf7 Qhh5 Qb8 Qdg4 Qh8 Kd7 Qbf8 Rc8 e6+ Kc6 Bb6 Bd6 e5 Qf3 Bbe3 Qe4 Bc5 Ree8 e7 Kd7 Nd1 Ke6 Nc3 Red8 e8B Rc7 Nf3 g1R Bc6 Rg2 Rf1 h1R Ng1 Re2 Rb2 g2 Rd2 Re7 Rd3 Rc8 Rh3 Rcc7 Nh6 Rh7 Ng4 Rhg7 Nf2 Rg6 Qg3 Kf5 e6 Rh6 e7 Rg6 e8N Rc8 Nc7 Rh2 Ne6 Rh1 Ng5 Rh2 N1f3 g1Q Nf7 Qg2 Ng1 Rc7 Ne5 Rc8 Bb4 Rc7 Ba4 Rc4 Bc6 Qh7 Bab7 Qgf3 Ba6 Qg8 Bc5 Ng2 Rh4 Rh3 Rg4 Rhh6 Rh4 Qh5 Rh3 Nh4 Qf4+
3bN3/p1BN1R1r/NQ1pRq2/2rq3Q/k2B2Q1/2Nb4/PKnbbBB1/7q b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 exd4 h3 g5 gxf5 Nc6 h4 g4 Rh3 Ne5 Rh2 Nf7 Rh1 Ng5 hxg5 Ke7 Bf4 Kf7 Bc1 Ke8 Kd2 h5 c4 b5 Kc2 h4 f4 b4 e4 d3+ Kb2 h3 f6 h2 g6 g3 f7+ Ke7 e5 g2 g7 d2 e6 Qb6 c6 Kd6 e7 Kc5 f5 Rh3 f6 Rg3 c7 Qa6 Na3 Bb7 c8Q+ Qc6 Nc2 Rg5 Qb8 Kb6 c5+ Ka5 Qh5 d1Q Ne2 g1B Nc3 Qe6 c6 Be3 c7 Bc5 c8Q Be3 Bg2 Nh6 g8N Ba6 Re1 h1Q Qd6 Rb8 e8N Be7 f8B Nf5 f7 Bd8 Bg7 Rb7 f8B Nd4 Ngf6 Rgb5 Rf1 Rc5 Be7 Bg5 Bf4 Qf3 Rad1 Qed5 Rde1 Rbc7 Bg3 Bd2 Qe6 Qf2 Bed6 Qff3 Re4 Be2 Qb7 Qf4 Qeg4 Qh6 Re6 b3 Ka3 b2 Nb4 b1B Kb2 Bbd3 Na6 Qg6 Rf4 Qf7 Bf2 Nc2 Qb3 Rb7 Bb8 d6 Bh8 Re7 Nd7 Qg6 Bhd4 Rh7 Rf7 Qgf5 Nb1 Qf6 Qb6+ Ka4 Bc7 Rh6 Qgh3 Rh8 Q3g4 Rh7 Nc3+
K3R1Bb/B1p2N1b/R1P4r/n5rR/r1NQ3Q/1p3rrk/1N3Q1b/3N1n1Q b - - 0 1 illegal: No possible last move, all moves rejected
n1k1BBnn/p2bQb2/1b1R1n2/3NK2Q/2R3r1/2r2N1N/P1Rr2p1/1B3N1R b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 fxg4 h4 g3 Be3 g4 Bc1 Qg5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 Kd2 Kd8 Ke3 b5 Kf4 d5 e4 h5 c4 h4 e6 b4 e5 g2 g6 g3 c6 b3 e7+ Kc7 e8Q d4 e6 b2 c5 d3 g7 d2 e7 h3 Qdh5 d1R Ke5 h2 f4 Rd7 f5 Rd2 f6 Rd3 f7 Na6 Bh6 Rc3 Nh3 g1N Nd2 b1N Bd3 Ne2 Nf1 Nd2 Rd1 Nf4 Bb1 Ne4 Rd6 Nef6 Qd7+ Kb8 e8B Nc7 Qd8 Be7 f8N Rh7 Qd7 Bd8 Qe7 Bd7 Ne6 Kc8 Neg5 Rb8 Nf3 Na8 c7 Rb2 Ra6 Rd2 Rd6 Kb7 c8N Bb6 c6+ Kb8 c7+ Kb7 Qe6 Rh8 Ne7 Ng6+ Kf5 Rh7 c8R Nh8 Rc4 Kb8 Ke5 Kb7 Rg1 h1B Nd5 Kb8 Qe7 Kb7 Rb4 Kc8 Rb2 Bg2 Rc2 Bh1 Nfg5 Be4 Nf3 g2 Rh1 Bg6 Qe6 Ne7 g8R Bf7 Rg4 Neg8 Bf8 Rg7 Qe7 Rg6 Re4 Rg4 Rc4+
2BB4/6q1/5Rn1/RNr2p2/2BQ1PrQ/rN1nbk2/nQpRn1Q1/1r1R3K b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Nb8 d5 Bg7 Nc3 Kf8 Nb1 Bd7 e6 Bh6 exd7 Kg7 Qg4+ Kf6 Qd1 Bf8 f4 Kf5 Kf2 Ke4 g4 h5 Kg2 c5 b4 f5 g5 a5 g6 e5 b6 h3+ Kh2 h4 b7 a4 g7 c4 b5 c3 b6 a3 Qd2 a2 Na3 c2 Nf3 Qc7 d8Q Ne7 g8B Ng6 d7 Nc6 b8Q Nb4 d6 Ra5 b7 Bg7 Qe7 Rc5 d8R Rh5 d7 Rg5 Ba6 Rg4 Qg2 Bh8 Rb1 a1R Rf1 Ra2 Bb2 Ke3 Kg1 e4 Ra1 Bd4 Nd2 Qe5 Bgc4 Qg7 Nab1 Ra4 Nc3 Raa5 Ra3 Na2 Qbe5 Ra4 b8Q Raa5 Rf2 Ra4 Rf8 h2+ Kf1 h1N Kg1 h3 d8R Raa5 Bc8 Ng3 Qh4 Ra4 Qbd6 Ra7 Nb3 Ra8 Qf1 h2+ Kg2 h1R Nb5 Rg1+ Kh2 Ra5 Qg2 Rb1 Bc3 Ra6 Rf6 Ra7 Ba5 Ra8 Qg1 Ra6 Rg2+ Kf3 Qh1 Bf2 Qb2 e3 Rd7 e2 Bd8 e1N Rg1+ Ng2 Rd1 Ne2 Qde5 Ra4 R7d2 Be3 Qed4 Ra7 Qg1 Ne1 Kh1 Nd3 Raa6 Re7 Ra8 Ra7 Qgh2 Ra4 Ra5 Ra3 Qg2+
RqN1B2b/4n1pR/2r2n2/Np2Q3/2Q4r/Q1Nr1Q1r/1nR3PB/k3K1nN b - - 0 1 illegal: Other
6r1/Q1k2Br1/Q4R2/K1pp1N2/n2b1RnN/1NNbB1R1/bP3Q1p/r1Q1q3 b - - 0 1 illegal: No proof kernel
2Nb2K1/3N2R1/1B6/1p3NBQ/5P1r/BRqN1pbk/B1n2r1p/Qb1n1n1R b - - 0 1 illegal: No proof kernel
2rk4/2RQq3/1Nn3p1/1R1pbn1p/b1Q1P2N/2QB1rB1/rN6/R1R1bQ1K b - - 0 1 illegal: No proof kernel
4nQ2/3bBn2/B1p3Q1/1PQ1N2r/p1pN3R/3RrR2/2nbR1qB/1k1K1Br1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 b6 Kd7 d4 Kc6 g4 Kb5 b4 e5 f4 h5 g6 a6 g5 h4 g7 h3 g6 h2 d5 e4 d6 e3 d7 e2 f6 Rh3 f7 Bb7 f5 Rh7 f6 Rh5 Ra2 Nc6 Qc2 Rd5 Bg5 Bc8 b7 Ne5 b8B Qe8 d8R Qc6 Qf5 Be7 f8R Be6 f7 Nf6 Nf3 Ne8 Nbd2 a5 g8B Rd3 g7 a4 Nb3 Ra5 Rd7 Bd6 Be7 Re3 Bh7 Bc5 Rd3 Bd7 g8Q Qa8 Kd2 e1N Kd1 Qd5 Rad2 Nc2 Re2 Bd4 Qh5 Bc3 Be4 Bd2 Qgg6 Qb7 Rg1 h1R Rg4 Qa8 Bb7 Rg1 Bc8 Qe4 Rh4 c6 Qhg5 Qg4 Q5h5 Qg2 Nbd4+ Kb6 Bb7 Rd5 b5 Ka5 Bbd6 Rc5 Ba6 Kb4 Nb3 Ka3 Nbd4+ Kb2 Qhf5 Ng4 Bh2 Kb1 Qe5 Rd5 Qed6 Rde5 Qc5 Rh5 Ne5 Nh6 Rf4 Rhh3 Rh8 Rh4 f8Q Nf7 Rh5 Rhh3 Rhf5 Rh8 Rh4 Rh5 Rf3
4bQr1/1Qbr2P1/1R1r1RBn/bK5B/4N2p/2BpRq2/1pRN4/k2BnQ2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 Kd3 d5 f4 h5 a4 b5 c4 e5 g4 h4 c6 d4 c5 b3 c7 b2 a5 b4 Kc4 d3 c6 e4 g6+ Kf6 g5+ Kg7 a6 b3 a7 e3 Kb5 e2 Ra6 e1B Nh3 Qd4 Nf2 Ba5 Rh3 Bc3 Nd2 b1R Re3 b2 Be2 Nd7 Nfe4 Bcb4 Rb6 Ne7 Bh5 Rh7 Qf1 Ba5 f6+ Kg8 g7 Nf5 Bg6 Nh6 f5 Bd6 Bh5 Bb7 c8B Ne5 c7 Ra1 Bd7 Ra2 Bde8 Nf3 c8R Ne1 Rc2 Bc7 Beg6 Rd8 Bd1 Rd6 a8Q+ Bc8 Qb7 Qd5+ Nc5 Qg2 Nce4 Qf3 Bh5 Ra4 Bg6 Rad4 Bh5 Rh8 f7+ Kh7 f8Q Rg8 f6 Bd7+ Kc5 Be8 f7 Rd7 Kc6 R4d6+ Kb5 Ng4 g6+ Kh6 Ng3 Kg5 Nge4+ Kf5 Ng5 Rh8 g8B Nh6 g7 Kf4 Bh7 Rg8 Nge4 Ke5 B7g6 Kd4 Nb1 Qh3 Bd2 Qg2 Ka6 Qf3 Bc3+ Kc4 Rce2 Bb4 Rc2 Kb3 Kb5 Ka2 Nbd2 Ba5 Qe7 Qg4 f8R Ka1 Rf6 Qf3 Qf8
B3r3/BbK1kQPp/2BN1R1n/7n/Q5pN/1r2p1NR/R1n2Bq1/br5N b - - 0 1 illegal: No proof kernel
r4k2/bRQ3p1/n1qp1B1B/2nrb2N/4R2P/1Q1BRK2/b3p1Q1/1NQnB3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 e5 f4 a5 h4 d3+ Kf3 a4 b4 d2 c4 a3 b6 a2 f6 Ne7 b5 Nd5 f7+ Ke7 b7 Ra7 c5 Nb6 h6 Qe8 f5 Nc6 b8R Qd8 f6+ Ke6 h7 Qe8 Bd3 Ra3 Qb3+ Nd5 b6 d1N b7 Qd8 Nh3 Nf2 Re1 Ne4 Re3 Nb4 c6 Bc5 f8B Kf7 c7 Na6 Be7 Ba7 Nf4 Qe8 Nh5 Nec5 Bd2 Rf8 h8Q Ra5 Qh7 Rh8 Qe4 d6 Be1 Bh3 c8Q Be6 Qg4 Nc3 Qg2 Kg8 Bd8 Kf8 f7 Bc4 Bg5 Nd1 Bh6 e4+ Kg4 Ke7 f8B+ Kf7 Kg3 Qc6 Be7 Rd8 Bf6 Kf8 Qc7 Be6 Qc4 Rb5 Qc1 Bc4 Rf3 e3 Rf4 e2 Re4 Ra5 Kf3 Re8 Rd8 Bf7 Rd7 Re5 Re7 Rd5 Re3 Bg8 R7e4 Be6 Nd2 Ra4 Rb1 a1B Rb3 Be5 Nb1 Rdd4 Rb4 Ba2 Rb2 Rd5 b8Q+ Qe8 Qb3 Qc6 Bc2 Rb4 Bd3 Rb8 Qa3 Rd8 Rb7 Ra8 Qb3
1Rn1N2R/1N1r1p2/QR3rb1/1B1p1Nbq/1BN4P/n1K2p2/2n1R2b/2BkQ3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kd2 Ke7 e4 Ke6 h4 Ke5 b4 Kd4 c4 g5 h6 d5 h7 a5 b6 a4 e5 a3 e6 f3 c6 a2 c7 g4 b7 g3 c5 g2 e7 Ra6 e8N Bh3 c8Q Bg4 b5 Rd6 b6 Ne7 c6 Na6 b8R Re6 b7 Rd6 c7 Nb4 Qe1 Bf5 Na3 Rd7 Nc4 Bg6 Rh2 Nc2 Rb1 a1N Rb6 Na3 Ne2+ Ke4 Kc3 g1B Rf2 Bh6 Nd4+ Be3 Re2 N1c2 Nf5 Bh2 Qf2 Rg8 h8R Rg7 Qe1 Rh7 Ra8 Rh6 b8B Kf4 Qb7 Nc8 Qa6 Qg5 Ba7 Qh5 Rab8 Ne7 c8N Ke4 Kb3 Kd3 Nc8d6 Nc8 Nb7 Bd2 Rb4 Bg5 Bc5 Bh7 Kb2 Rf6 Rb6 Bg6 Bb4 Bg1 Nce3+ Ke4 Rg2 Bh2 Bb5 Kf4 Re2 Ke4 Nc4+ Kd3 Re7 Ne3 Qg3 Ke2 Kc3 Kd1 Ree6 Nec2 Re2 Qh7 Qf2 Qh5 Qe1+
QN2R2R/B1KBPk2/1r4Q1/1Bbp2Q1/p7/1nq2N1Q/pn2b1Nr/B2r3n b - - 0 1 legal: proof: f4 b5 g4 c5 d4 h5 gxh5 e5 fxe5 Na6 dxc5 Nb8 a4 bxa4 Kd2 g5 Kd3 d5 Kd4 a5 b4 f5 h4 g4 c4 g3 e4 g2 h6 a3 h7 a2 b5 a4 b6 f4 c6 f3 e6 f2 Ke5 Ba6 c7 Bc8 e7 Nd7+ Kd6 Ba6 c8Q Kf7 h5 Bh6 e8Q+ Kg7 e5 Rb8 e6 Qf6 c5 Bb7 c6 Ra8 c7 Qd8 Nc3 Ne7 Nce2 Ng6 Nf4 Qg5 Nf3 g1N Bb5 f1R Qd2 Rd1 Ng2 Qh4 Qg5 Qh3 Be3 Ba6 b7 Rb8 Ba7 Nc5 e7 Rd2 Rc1 Nb3 Qe6 Rd4 c8B Ne2 Bcd7 Rd1 Rc8 Ng3 Rh2 Nh1 Kc7 Qg3+ Qd6 Qh3 Qd8 Kf7 Qb6 Bg7 h6 Bd4 Qd6 Re8 h8B Nf4 h7 Bc5 Ba1 Nd3 h8Q Nb2 Qhh4 Qg3 Qh3 Qe1 Qb6 Rh8 Qd6 Rh7 Qh8 Qc3 Re8 Ra8 b8N Rh4 Nc6 Rb8 Qdh6 Rb6 Nb8 Re4 Qc6 Re2 Qa8 Rc2 Qd4 Re2 Qg1 Red2 Qhg3 Rc2 Rhh8 Rcd2 Qh3 Rc2 Nf4 Rh2 Ng2 Rf1 Qgh6 Rf2 Qgc1 Re2 Qcg5 Re1 Bbc6 Be2 Bb5 Rd1 Qhg6+
r1r2B2/PBq2QNK/B1Q1p2b/1R4B1/2brR1pR/3n1p1b/4N2n/1N4kN b - - 0 1 illegal: No proof kernel
3R1RR1/p1Nrb3/2q1B1RK/5NB1/P1p1r1k1/rp3n1B/1n1N1nbQ/3B3Q b - - 0 1 illegal: No possible last move
qR1R1N1R/pBnK3n/2Q2NQ1/b1bP3R/2Nr4/5k2/5ppr/BQQb3r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 g5 b4 f6 h4 f3 h6 g4 h5 f2 h7 g3 h6 g2 b6 c4 b7 c3 b5 c2 b6 Bh3 Nc3 Be7 Nf3 Qd7 Rb1 Nc6 b8N Qe6+ Ne5 Na5 b7 Qf7 Bb2 c1B Ba1 Nb3 Nc4+ Kc7 d6+ Kd8 d5 f5+ Ke5 f4 e4 f3 d7 Kc7 d8R Nf6 Nd7 Bd2 Nf8 Rc8 Qc1 Bg4 Rh5 Nd4 Be2 f1R Rb5 Rg8 h8R f2 h7 Ne6 Rb4 Bf3 Kf5 Qe8 e5 Rd1 Ne4 Bc5 Rb6 Ba5 Rb2 Nd7 Nf6 Rg4 Bd3 Rd4 Rb4 Ng5 e6 Rh1 e7 Nb8 Be2 Qc6 e8Q Na6 Qg6 Ra8 Bd3 Bd1 Ke5 Rc8 Bf5 Rb8 Bc8 Ra8 Rg8 Rb8 h8Q Rh2 Qhh6 Nh7 Rh8 Rh1 Rb1 Ra8 Nb2 Kb6 Kf5 Nc7 b8Q+ Qb7 Qhf4 Kb5 Qd6 Kb4 Qc6 Rh2 Qf4 Kc3 Nc4+ Kd3 Qc1 Ke2 Rb6 Kf3 Rb5 Na6 Ke6 Nc7+ Kd7 Qa6 Qbb6 Qb7 Qgb1 Rb8 Qg6 Qa8 Rb1 Rb7 Qbb2 Rb3 Bb7 Re3 Qbc2 Re1 Rb4 Reh1 Q2b1 Re1 Bc8 Rf1 Rb8 Rfh1 Bb7
3b1B1n/4rbNq/Bn1Q1Rr1/2q2R1Q/1Q2N2P/p1Q2KBp/5p1R/2B2k1r b - - 0 1 illegal: No proof kernel
KR1RR3/1Q3NQ1/1b2q3/2R1Q1q1/Bp2nNpn/1Br4b/P2qQ1p1/r1B2k2 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 d4+ Ke4 h4 b5 f4 g5 d6 e5 h5 c6 h6 b4 f6 g3 a6 g2 h7 Ra7 d5 Qd7 Kb6 c5 f7 c4 f5 c3 f6 c2 Qe2+ Kd4 Na3 e4 Nb5+ Ke5 Rh5 e3 Nh3 Ke4 Nf4 Ra8 a7 Qg4 d7 Bg7 d8R Bd7 Kb7 Nh6 f8R Be8 d6 Nf5 d7 Na6 f7 Rc8 a8B Nh4 Nd6+ Kd4 Qf2 Qe6 Bb5 Rc3 Ba4 Nc5+ Kb8 Ne4 Bd5 Bf6 Bdb3 Be7 Qf3 e2 Ka8 e1Q Qe2 Qd2 Qe3+ Ke5 Rb8 Bd8 Rb1 Ba5 d8Q Bd7 Qe7 Bb6 Rfd8 Bc8 f8Q Bd7 Bb2 c1Q Nf7+ Kf5 Ra1 Kg4 Qg7 Rf8 h8Q Re8 Qe2+ Kg3 Qe3+ Kh2 Qe5 Rf8 Qhg7 Bc8 Qh3+ Kg1 Qe3+ Kf1 Qb7 Re8 Rh8 Re7 Rhe8 Rd7 Qh3 Rdd3 Ba3 Re3 Rb1 Re1 Qe3 Qc6 Bd5 Bh3 Q3d4 g4 Nh5 Qdb2 Bdb3 Qg5 Qe3 Rc4 Nf4 Qe6 Rc1 Qd2 Rc3 Ra1 Bc1 Rd4 Rc4 Rd3 Rc5 Rc3 Qe2+
k2nK1R1/1Nr2BQ1/2Q2b2/RbB4p/2Q5/p1PrpNB1/2R2q1b/2qQ1Bn1 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 e5 Ke3 a5 g4 h5 b4 d5 f4 Kd7 c3 Kc7 f5 Kb7 c6+ Ka7 c7 a4 f6 Rh6 f7 Qd6 g6 Ba6 c8Q Qd8 g5 Ne7 g7 Qd7 g8Q Rf6 g6 Rf5 g7 Ng6 Rh2 Rg5 Qc6 Qd6 Nd2 Be7 f8Q Nh4 Nb3 Bf6 Na5 Nf3 Nb7 Rg3 Rc2 Qe7 Bd2 Qf7 Be1 Rh3 Bg3 d4+ Ke2 e3 Kd3 e2 Ke4 e1B Kf5 Qa2 Kg6 e4 Qgc4 d3 Kf7 d2 g8B Qb2 Qg7 a3 Ke8 Bf2 Bf7 Bb6 Rb1 Bc7 Be1 Bh2 Bg3 Nd4 Nf3 Ne2 Qc1 d1Q Qd2 Qe1 Qd1 Qc1 Rb3 Bd8 Rbb2 Ng1 Rb3 Nd7 Rbb2 Ne5 b6+ Kb8 b5 Qf2 Rb4 Ra7 Ra4 Bf6 Ra5 e3 Nd6 Rc7 b7 Ka7 b8R Rh4 Nb7 Rd4 Rc8 Rd3 Rd8 Rc8 b6+ Ka8 Bg6 Qe1 Nd6+ Kb8 b7 Qe2 Kf8 Nf7 Re8 Nd8 Bf7 Be5 Ke7 Qe1 Rg8 Qf2 Ke8 Bd4 Qc7+ Ka7 b8B+ Ka8 Ba7 Bf6 Nb7 Bb5+ Q7c6 Rc7 Bc5+
KNk1q1Q1/4R1bq/1Q1R1b2/1N1p1Pn1/b2QBrRB/n3Rp2/2B3p1/4r2B b - - 0 1 illegal: No proof kernel
k1B3rr/3K2B1/2R2b1p/n1N3qb/5p1P/NNRQ2Nn/1QRp2Q1/q5bQ b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 dxe5 Na6 axb5 Nb8 f4 gxf4 Kf2 a5 Kf3 f5 g4 d5 e4 Kd7 h4 Kc7 c4 Kb7 g5 a4 g6 d4 b6 d3 e6 h6 e5 a3 e7 a2 e8N d2 c6+ Ka6 e6 Be7 g7 Nd7 b7 Ka7 b8N Ndf6 c7 Qd6 c5 Nh5 c6 Qd8 Ne2 Bc5 e7 Nhf6 Bh3 Nd7 Nf6 Ba3 e8Q Nb6 Qd7 Rh7 Qd3 Qe7 Bb2 Bd7 c8Q Qe6 c7 Bf8 Ng3 Qb3 Nfe4 Ne7 g8Q Ng6 Na3 Qb5 Na6 Nc4 Nec5 Na5 Nb3 Bc5 Bg7 Rh8 Rc1 a1B Rc3 Bg1 Nac5 Be8 Q1b1 Rb8 Qb2 Ka8 Qce6 Bf7 c8R Be8 Rc6 Bf7 Qh7 Rbg8 Qee2 Be8 Qg2 Bf7 Nce4 Qd5 Qdb1 Qd8 Nec5 Qg5 Bg4 Be8 Rh3 Bf7 Rc2 Be8 Ke2 f3+ Kd3 f2 Kd4 f1Q+ Kd5 Nf4+ Kd6 Bh5 Kd7 Qe1 Qg6 Qe5 Qd6 Qef6 Qd3 Qe5 Rh1 Nh3 Rc3 f4 Be6 Bf2 Rhc1 Qef6 R1c2 Be3 Qbh1 Bg1 Bc4 Qfe5 Ba6 Qe1 Qa2 Bb2 Bc8 Qa1 Rc4 Bbd4 Qb2 Bf6 R4c3
2BbQNR1/1q1NQ1qB/2k4p/2pn3r/1p2R1RP/Q1br1nB1/K1Rb4/6B1 b - - 0 1 legal: proof: c4 f5 e4 d5 cxd5 a5 exf5 Na6 g4 Rb8 f4 Nh6 b4 axb4 g5 Ra8 f6 Nb8 f5 Be6 g6 Bf7 gxf7+ Kd7 Qe2 Ng8 Qg4 Ra4 Qd1 Ra8 h4 g5 a4 b5 d4 e5 Kd2 c5 Kc2 g4 Kb3 e4 d6 e3 d5 h6 a5 g3 a6 g2 a7 e2 Ra4 e1B Be3 Bg7 f8R Bc3 f7 Nf6 Nh3 g1B Nf4 Be1 Na3 Na6 Qa1 Qc7 Ne6 Qc8 Re8 Nb8 f8R Bd2 Bh3 Qc7 Ka2 Bc3 Rg8 Bd2 Nc4 Nh7 f6 Qc8 f7 Qd8 f8Q Bgc3 Rh2 Na6 Qb2 Qe7 Qa3 Rc8 a8B Nc7 Qf6 Rd8 Ne5+ Kc8 Rf2 Qg7 Qe7 Ng5 Nd7 Bh2 Nef8 Nf3 Re2 Bf4 Bg1 Bg5 Bf5 Bgf6 Bh7 b3+ Kb1 b2 Ka2 Be3 Rc2 Bed2 Rg4 b4 Bc6 Bfg5 Bb5 Kb7 Bbd3 Bgf6 Bdf5 Bfg5 Nb8 Bgf6 d7 Kb6 d6 Nd5 Qe1 Kb7 Ree4 Re8 d8B Re5 Be6 Rh5 Nbd7 Kc6 Bc7 Bfg5 Nb6 Be7 d7 Bef6 d8Q Be7 Qb8 Bd8 Bg3 Qb7 Bhf5 Rh7 Bc8 Rd7 Bh7 Rd6 Kb3 Qg7 Nbd7 b1Q+ Qb2 Qd1 Ka2 Qe2 Qb3 Qa6+ Qa3 Qb7 Qba8 Ne7 Qb8 Rd3 Qe5 Nd5 Qe8 Qf6 Qe3 Qe5 Qg5 Qg7 Qge7
1B1q1BbB/1r2N2Q/1N4pR/1n1q4/1p1Nn1R1/1rk1NKp1/PQr4R/2bB4 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kf7 f4 Kf6 h4 b5 d4 e5 h5 c5 h6 b4 a6 c4 h7 g3 d6 c3 d7 e4 a7 g6 d5 e3 d6 c2 Qd2 Qb6 d8Q+ Be7 d7 Na6 Kf3 e2 Rh2 e1Q Na3 Qd1+ Be2 Qd6 Nc4 Nc7 Ne3 Nb5 Qc7 Qb6 d8N Bd7 Nc6 Rb8 a8N Qe1 Bd1 Bd6 Ne7 Rf8 Ne2 Be6 Nd4 Qh1+ Qg2 Qb8 Nb6 Qd8 Bb2 c1R Qd7 Kf7 f6 Rc2 f5 Bf4 Rc1 Rc3 Ba1 Rb3 Rc6 Bc4 Re6 Bg5 Re4 Re8 Rg4 Bf4 Ned5+ Re7 Qa7 Rb7 Ne7 Kf8 f7 Kg7 f8R Nf6 Re8 Ne4 f6+ Kf7 Rh6 Qh5 Qe2 Qhd5 Qb2 Rf8 h8B Bg5 Ndf5 Ke6 Nd4+ Kd6 f7 Kc5 Be5 Rh8 f8B Bf4 Rh1 Rh2 Bb8 Rc2 Rh2 Bg5 Bg7 Bf4 Reh8 Bh6 Bf8 Bf4 Ne2 Bg5 R8h6 Bf4 Nc3 Kd4 Ne2+ Kd3 Nd4 Bg5 Nf1 Bc1 Ne3 Qg5 Re2 Bg8 Reh2 Qgd5 Ndf5 Rbc3 Qb1 Rd7 Nec8 Rc4 Bh8 Rc3 Nd4 Rb3 Qb7 Kc3 Qa7 Rd6 Qh7 Rd7 Ne7 Rb7 Qb2+
3NQ1r1/2k1Q2b/2P2NRB/rB1p4/1Qp1q1n1/n5nR/R2N2pq/2K1b1NR b - - 0 1 illegal: No proof kernel
1B2NB2/q2B3R/Q1pbP1R1/1r5b/1R3r1p/QR1B1p1q/2Kn2N1/3nknN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 b4 Ke5 d4+ Kd6 Kd2 h5 b6 a5 b7 f5 b5 f3 g6 f4 g5 a4 g7 a3 g6 a2 b6 f2 e5+ Ke7 d6+ Ke6 d7 Kd5 Qb3+ Ke4 d5 c6 d6 f3 Bd3+ Kf4 Ba3 Kg3 Kc2 f1N Nd2 Kf2 Nc4 Qf6 d8N Nd7 b8B Ng3 b7 Nc5 d7 Qh4 Rb1 a1Q Nf7 Ra5 d8Q Rh7 Nfd6 Qh3 Ne3 Ra4 Qdb6 Ne7 g8B Bg4 g7 Nf1 Be6 Nd5 g8R Ne4 Bd7 Ned2 e6 Rf4 Qa6 Nc3 Rg6 Nd1 Ne8 Ke1 Bb4 Qg7 Qba3 Bd6 Rb3 Qd4 Rh2 Qa7 Rh1 Be5 Bf8 Bd6 Bc7 Rhf7 b8R R7f5 R8b4 Rb5 Rh2 Ra5 Bb8 Rb5 Rg2 h4 Rg7 Qc7 Rh7 Bh5 Rg6 Qa7 Ng2+
q2nB2N/Q1K3Q1/qpRBQp2/3R1N2/p3QRN1/1Pn2b2/5b1R/1rrk3b b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b6 a4 Nh6 a5 Ng8 a6 Qd7 Na3 Qc6 Nb1 Qb7 axb7 Bc5 Nf3 Bd6 Ng1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 a5 e4+ Kb4 h4 c5 b3 g5 d6 f3 h6 a4 h7 g4 d5 c4 d7 c3 d8R c2 d6 g3 h5 f2 h6 g2 d7 Nf6 Na3 Kc3 Qd5 Ra7 Qe6 Ng8 Bb5 f1B Ne2+ Kb4 Ng3 Kc3 Nf5 g1Q Nc4 Nf6 Rh2 Ne8 Bf4 c1Q Nce3 Qg2 Ng4 Kc2 Rb1 Rg8 h8Q Nf6 h7 Kd1 Qg7 Nd5 h8N Bc5 Rf8 Bf2 Kd6 Nc3 d8R Nc6 b8Q Rc7 e5 Bb7 Qa7 Be2 Rb2 Qe3 Rc2 Bf3 Bg3 Qe2 Bf4 Na5 Be8 Qa6 Bg3 Rc4 Rd7 Nc6 Kc7+ Bd5 Rd6 Nd8+ Rc6 Bf3 Rd2+ Kc1 Rd4 f6 Rf4 Kd1 Rf7 Qf1 Rd7+ Qd3 Rd5 Qa5 Qb8 Qa8 Qa7 Bh1 Qef7 Bf3 e6 Rc5 e7 Bh1 Re5 Qa6 Qe6 Rc4 Rcc5 Bbf3 Rc6 Ne2 Rb5 Rc1 Rd5+ Qd3 Rfd4 Nc3 Bd6 Rb1 Rf4 Rf8 Bh5 Rg8 e8Q Rf8 Ra5 Qa6 Qe4 Rf7+ Qd7 Re7 Be8 Re5 Qde7 Rc5 Q7e6 Na2 Qh6 Rcc1 Qg7 Nc3 Rd5+
7B/2n4n/Prb1Qp1k/1qR1b3/1bBRr1B1/2QQ1Np1/2N1Nq1p/K1N1Q3 b - - 0 1 illegal: No proof kernel
4Kb2/1BN4r/p1N5/1R1RN1R1/1B2n3/r1P1p1qB/Q1k1b2p/n1BqQN1b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 h5 Ke4 d5+ Ke5 e6 g4 a6 b4 d3 f4 d4 b6 d2 f6 Kg6 f7 d3 b5 h4 b7 h3 f5+ Kg7 b6 h2 c3 Qe8 f6+ Kg6 Qe1 d1Q Bh3 d2 Ra5 Rh6 Rd5 Bc5 f8B Rh4 f7 Ba3 Bb4 Rh8 Kd6 e5 f8N+ Kf7 g6+ Kf6 g7 e4 Nf3 e3 Ne5 Nd7 b8N Qg6 b7 Nc5 Nbc6 Nb3 b8R Rh7 Rg1 Bb7 Kd7 Na1 Ne6 Qg5 Ke8 Qh4 Ned4 Qg3 Nb5 Kg5 Rg2 Kf4 g5 Ke4 g6 Ra7 Nc7 Nf6+ Kf8 Ba8 g8Q Rb7 g7 Rb5 Qe6 Ra5 g8B Ra4 Rbb5 Bb7 Rd8 Ba8 Qa2 Bb7 Nd7 Kd3 Bd5 Ne4 Ke8 Ba8 Na7 Ra5 Bb7 Ra4 Nc6 Ra5 Qe6 Kc2 Nde5 Ra4 Rdd5 Ra5 Rg1 Ra4 Ba5 Bf8 Bb4 Ra3 Qf7 Qdg4 Qe6 d1B Nd2 Be2 Nf1 Bc4 Rd3 Qd1 Rdd5 Be2 Rg2 Qf3 Rg6 Qg3 Rg5 Ra2 Rd7 Bg7 Na5 Nc5 Bc8 Bh1 Nac6 Bf8 Bb7 Ne4 Qc4 Ra4 Rdd5 Ra3 Qa2+
1K3b2/QRN3rk/pP1b3r/4N1B1/BQRn4/qbN1n1p1/R2R1p2/3q1BN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 f5 Kf3 Kf7 h4 g5 e4 Kg7 d4 c5 b4 c4 e5 c3 d6 a6 d5 c2 h6+ Kh7 e6 Ra7 e7 Qd7 e8B Qe7 d7 Qg7 d8N Be6 h5 Qd7 d6 Rc7 b6 Ne7 b5 Kg8 h7+ Kg7 b7 Ng8 h6+ Kf6 b6 Ne7 Rh4 Nd5 Qd2 Nc6 b8Q Nc3 Qa7 Bc4 Ne6 Bb3 Ra2 Qe7 d7 Qa3 d8R Rg7 Nc7 Nd5 Qb4 Ne3 Rd2 Bd6 Nc3 g4+ Kf2 g3+ Kf3 Nd8 Ba4 Kg6 Nge2 Nc6 Ng1 Ra8 h8N+ Kh7 Ng6 Rh8 Ne5 Bf8 Ke2 f3+ Kd3 f2 Rc4 f4 Ke4 f3 Kf4 Nd4 Ke4 Nef5 Kd5 Bd6 Rd3 Bf8 Bg5 c1B Rd1 Bf4 Rdd2 Ne7+ Kd6 Nd5+ Be7 Ne3 Kd7 Qc1 Kc8 Qb2 Kb8 Qa3 Bh3 f1Q Bg5 Qd1 Bf1 f2 Kb7 Rg6 Kb8 Kg8 h7+ Kg7 Nef3 B4d6 Ne5 Rg8 h8R Re6 Ng4 Rh6 Rh7+ Kg6 Re7 Rg7 Ne5+ Kh7 Rf7 Bde7 N7b5 Bc5 Rb7 Bcd6+ Nc7
1QRB1r2/kbR1qp2/nN3r2/1KNB2b1/6NQ/P3npNp/3R2R1/3n2Bq b - - 0 1 illegal: No possible last move
8/K1N2p2/NQ4rn/2R2Nr1/pqq2p2/1k2QQbR/RB1Rr2P/Qn3b1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Ke7 Kd2 Kd6 Kd3 a5 Kc4 g5 e4 c5 b4 a4 h6 g4 e5+ Kc7 b6+ Kb7 Kb5 g3 h7 c4 e6 g2 d6 c3 d7 c2 d5 Qe7 d8R Qd6 e7 Qc7 e8Q Ra6 d6 Bg7 d7 Bb2 Ra2 Bd4 Ne2 g1Q Ng3 Qg2 Bd2 c1R Qe3 Nf6 Na3 Rc2 Qdf3+ Rc6 Bc3 Rf8 h8R Ng4 Rh3 Rg8 Nf5 Qd2 Bg2 Rg5 Rc1 Nh6 Bh1 Ra8 Rcc2 Na6 Ka5 Rb8 Nb5 Nc5 Rc1 Ne4 Rcc2 Qd6 Nc7 Qd3 b5 Qc4 Rd2 Bc5 Re8 Qe7 d8Q Rcg6 Qdd4 Be6 Rd8 Bd5 Rd6 Re8 Rc6 Qd6 Qh8 Bd4 Rc5 Re7 Qd3 Bf2 Qde3 Bg3 Qg7 Qb3 Qf6 Bc4 Qh8 Bf1 Qe5 Kb8 b7 Ka7 b8N Qc4 b6+ Kb7 Nba6 Ree6 Rb5 Kc6 b7 Qdc5 b8Q Re8 Rd5 Nd2 Qh8 Nb1 Rdd2+ Re4 Qhd4 Qa3 Rd5 Re5 Qb2 Qd6 Qa1 Re8 Qef2 Re2 Rc5+ Kd7 Qde3 Qdd4 Ng7 Kd6 Kb6 Qb4+ Ka7 Qd3 Rdb2 Qdc4 Rd2+ Qd5 Qd4 Bg2 Q2e3 Bf1 Ra5 Kc6 Nf5 Qe4 Re5 Qd5 Ne8 Kb5 Qb6+ Kc4 Nec7 Qdc5 Red5 Kb3 Re5 Qd4 Rc5 Qc4 Bb2+
R3q1N1/N1kRp3/1N6/1nBQ4/3Qr3/nrbbpB2/KRBpRr1P/5B1q b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 dxc5 h5 axb5 Rh6 gxh5 Rh8 Bh3 a5 Kd2 g5 Kc3 d5 Kb3 g4 f4 Kd7 c4 d4 b6 d3 c6+ Kd6 b7 e3 h6 g3 c7 g2 c5+ Kc6 h7 Bd7 c8B Bf5 Na3 Qc7 Ne2 g1Q Nd4+ Kd5 c6 Kd6 Nc4+ Kd5 Nb5 Qf2 Re1 Qd6 c7 Kc6 Re2 Na6 b8N+ Kc5 Nd7+ Kc6 Nf6 Qf1 Bb7+ Kc5 c8B Qh1 Bf1 a4+ Ka3 Bg6 f5 Nh6 b3 Rg8 h8Q Rb8 Bf3 Nf7 Raa2 Qc7 Rad2 Nb4 Kb2 Rg7 Ng8 Nc2 f6 Qc6 Bf5 a3+ Kb1 a2+ Kb2 Qd5 b4+ Kc6 Qh5 Nd6 f7 a1R Na7+ Kb7 b5 Qc6 b6 Ra4 Qh8 Rb4+ Ka2 Bh7 Ba3 Rg2 Qe5 Bg7 f8R Rf2 Qe4 Bc3 Bg6 Rb5 Bc5 Na3 Re8 Rd8 Qb3 Kb8 b7 Kc7 b8R Rb4 Ra8 Rdb8 Rd8 Qe8 Rb2 d2 Qg4 R8b7 Bc2 Bd3 Qf4 R7b5 Nb6 Rd4 Qd5 Rb3 Qf6 Re4 Qfd4 Ndb5 Rd7+
2k5/2Bp4/2Nn1b2/1rbPpBq1/K1p3r1/QRq4R/1NNQ1Q1N/2BB1bn1 b - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 c6 exf5 Qb6 a5 Bh6 a6 Qb7 axb7 Kd8 cxb5 Bg7 b6 Bf8 b5 Ke8 g4 Kd8 d4 a5 Kd2 e5 Kc3 h5 Kb3 h3 f4 c5 f6 h2 d5 h4 f5 c4+ Ka4 h3 g5 Bd6 g6 Nc6 b8N Bb7 g7 Kc8 f7 Be7 f6 Rh4 Na6 Nd4 Nb4 Nh6 g8B Rg4 Qd2 Nf3 Be2 Rb8 Nc2 Nf5 Nc3 Bc6 Ra3 Nd6 f8Q+ Bd8 f7 Rb7 Qg7 Bf6 Rb3 Rb8 Bd1 Rb7 Ka3 a4 Bh7 Rb8 Kb4 a3 Na4 a2 Nb2 a1B Ka4 Rb7 Bf5 Rb8 Nd3 Bd4 Nb2 Bc5 Qf2 Rb7 Qh6 Rb8 Qhd2 Rb7 Ne2 Ng1 Ned4 Ne2 Re1 h1Q Nf3 Ng1 Nh2 Qf3 Ree3 Qf4 Rg3 Qg5 f8Q+ Ne8 Nf3 h2 Rh3 h1Q Nh2 Qf3 Qd6 Qc3 Qf8 Rb8 b7+ Kc7 Qe7 Nd6 Qf8 Re8 b8B+ Kc8 Bc7 Rd8 Nb4 Re8 Ka5 Rd8 b6 Ba4 Qe7 Qg3 Nc2 Qc3+ Rb4 Bb3 Qf8 Ba2 Ka4 Bb1 Rb3 Re8 Nd4 Bd3 Nc2 Bf1 Qe7 Ne4 Qf8 Bd4 Qa3 Nd6 Bd8 Bc5 b7+ Kb8 Ba5 Rc8 Bb6 Rc6 Bd8 Rb6 Bc7+ Ka7 b8N Kb7 Qd3 Kc8 Nc6 Rb5 Qdd2
1QR1rNb1/r2p1RB1/q1B1pbk1/RPB5/1NK5/qn2B3/1Np2n2/2QNq3 b - - 0 1 illegal: No proof kernel
k2NRQ2/2PbKBR1/4Q1p1/b7/1R1Rr2n/1rb2Q1p/1pq2Q1q/BBN2n2 b - - 0 1 illegal: No proof kernel
R1Q1n1Q1/1rpbR1B1/Q1B3Qb/r5n1/2Np4/1qBK1Nq1/PpB1n3/5kR1 b - - 0 1 illegal: No proof kernel
1B2k1bb/n1p1r3/K5RN/4Q1PQ/3N3N/2r1p1pQ/4BBQ1/1n1qNRrq b - - 0 1 illegal: No proof kernel
2n2qr1/r1pp1NR1/p1NB1kRb/1B3q2/B4Q2/P5QB/1n1K2QR/r1Rb4 b - - 0 1 legal: proof: e4 b5 d4 e5 dxe5 g5 c4 bxc4 h4 f5 hxg5 Bd6 exf5 Bf8 f4 Ke7 g4 h5 b4 a6 e6 c3 g6 h4 g5 c2 g7 h3 b5 h2 b6 Qe8 b7 Qd8 f6+ Ke8 e7 Kf7 e8R Rh6 f5 Ne7 a3 Rh5 Qd2 Nbc6 b8Q Ng6 Bh3 Nf4 Qb3+ Ne6 Nc3 Na5 Nge2 Be7 Ne4 Rh6 Rg8 Bb4 Nd4 Bc5 Qg3 Nf8 g6+ Ke8 f7+ Ke7 Qdg2 Bb7 Nd6 Bb6 Nc6+ Kf6 Bf4 c1R+ Kd2 Rc5 Rac1 Ra7 Rhg1 h1Q Rh8 Qa8 g8B Qc8 g7 Rg6 Bh7 Re5 g8B Rg7 Bg6 Re1 B6h7 Ng6 f8Q+ Rf7 Qh6 Rf8 Bb3 Rg8 Ba4 Qf8 Nf7 Rf1 Bd6 Be3+ Kc2 Bd2 Qhf4 Ne7 Bg6 Nc8 Rh7 Qh6 Rg7 Nc4 Bh5 Qh2 Be2 Nb2 Beb5 Qh7 Rh1 Qg1 Rh2 Qf2 Qb4 Bh6+ Qd2 Qg1 Qdf4 Qc5+ Kd2 Re1 Rc3 Rb1 Rc1 Ra1 Nd4 Qh8 Nd8 Bf3 N4c6 Bd1 Rg4 Rg6 Rg5 Kg7 f6+ Kg8 f7+ Kg7 f8R Qf5 Nf7 Kf6 Rg8 Qg7 Rg4 Qf8 Rg5 Rg7 Rg4 Rh7 R4g5 Rh8 R8g7 Rg8 R5g6#
Q4N2/Rp1RrQ1r/3P4/1B2B2n/pb2R2q/1BQ5/K1N2pnk/QBb1qb2 b - - 0 1 illegal: No proof kernel
KN6/bp1B4/1P6/Q2Nqrr1/4B1pB/n2BRN1Q/1pN4n/bkRb1Q1q b - - 0 1 illegal: No possible last move
1Bn5/P2R1R2/1qpQ2Bp/1prq4/bKR1Q1nb/4NRQk/2B1rBr1/7N b - - 0 1 illegal: No possible last move, all moves rejected
1b1R4/1RB1B1nQ/3K2P1/2p4N/2B1R1qk/1nrN4/1bbpbr1p/B3N1QN b - - 0 1 illegal: No proof kernel
Q5R1/1rbnbQNK/b2BpRBQ/1q3r2/3bn1QP/Bkp5/p2N2NN/8 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 c5 Kf4 a5 Kg5 c4 b4 a4 d4 a3 h4 g3 f4 g6 d6 c3 d7 a2 f6 Ke6 b6 Kd5 f5 g2 f7 Bb7 b5 Nf6 Nd2 Qe8 d8N Ng4 f6 Ra3 Ngf3 g1B Bd3 Nh6 Ne6 Ng8 Nh2 Nc6 Nf4+ Kd6 d5 Kc5 d6 Kb4 d7 Rh6 d8N Bc8 b7 Ne5 b8B Ra8 b6 Ra3 b7 Rb3 Ng2 Nd7 Qg4+ Bd4 Ne6 Ka4 Ng7 e6 Rf1 Be7 f8Q Rh5+ Kf4 Bb6 f7 Ngf6 Ba3 Ne4 Bbd6 Bc7 b8Q Ba6 Qa8 Rb7 Qg8 Qb8 f8Q Ra5 Qgf7 g5+ Ke3 Rab5 Rf6 Rf5 Rg1 Qe8 Qh8 Qb8 Qh6 Qe8 Qh3 g4 Bb1 g3 Qg4 Rd5 Kf4 Ra5 Qgg5 Rf5+ Kg4 Qb8 Kh5 Qe8 Kg6 Qb8 Ne3 g2 Qg4 Qe8 Kh7 Qb8 Re1 g1B Ng2 Bd4 Bd3 Qa7 Rb1 Qc5 Rb6 Qb5 Rc6 Ba5 Rc8 Bc7 Rg8 Rf4 Bdc5 Ng3 Bg6 Ne4 Nb1 Kb3 Bd6 Rf5 Nd2+
N2k4/4n1Bp/1K1NNb1R/2BB1r2/RpQ1b2Q/1b1r1N2/1p1R2Pn/q2b2R1 b - - 0 1 illegal: No proof kernel
b7/1B1B2pp/1B2p2N/Q5P1/rr2k1Nn/1BQ2qrQ/4n1RK/R1R1b1rR b - - 0 1 legal: proof: e4 c5 a4 b5 axb5 f5 exf5 Qc7 d4 Qf4 dxc5 Qxh2 g4 Kf7 b4 Kf6 f4 a5 c4 d5 c6 e6 b6 a4 b5 a3 c5 a2 b7 d4 b6 d3 c7 Ra6 c6 Qg2 g5+ Ke7 f6+ Kd6 f5 Ke5 f7 Ra7 f6 Qe4+ Kf2 d2 Kg3 Qd3+ Nf3+ Kf5 Qe1 d1R Qa5+ Bc5 f8R Qd7 f7 Qe7 Kh2 Nf6 Nbd2 Nh5 Ne5 Ng3 Nb3 Rg8 Be3 Nd7 b8R Rb7 Nd4+ Ke4 Nf5 Rd3 Nh6 Qd6 Neg4 Rd1 Bc4 Rh8 Bb3 Qd5 Bd4 Ra7 b7 Bb4 Bb6 Ne2 Re8 Be1 f8Q Rc1 Qf6 Nf8 Qfc3 Ng6 Re7 Bd7 c8B Nh4 c7 Bc6 Bd7 Rc8 Rf7 Rb1 Rf2 Rf8 c8B Rf3 Rg2 Rg3 Ra8 Rb2 Rb1 a1R b8Q Ra6 Ra7 Ba8 Rc1 Qd3 Qbc7 Qf3 Qd8 Ra4 Qf8 Rb4 Qf7 Rb1 Qh5 Ng6 Qh3 Nh4 Qb5 Ra3 Qa5 Raa4 Rc7 Rb2 Ra1 Rb1 Rc6 Bd2 Ba6 Rg1 Bb7 Be1 Qce5+ Kd3 Qc7 Ke4 Rcc1+ Kd3 Ba6+ Ke4 Qc3 Kf4 Bac8 Ke4 Bb7+
2RQ2Qb/1N2p3/B3BpK1/5pbR/1RQ1P3/rRn1Nb1n/rb2kBB1/2q5 b - - 0 1 illegal: No possible last move, all moves rejected
nBb1KBRN/2p4r/4B1BR/pR5R/1r1rNn2/1pPq4/2k1N1b1/Q1r4Q b - - 0 1 illegal: No proof kernel
q1b3N1/Rrp1Q1b1/n3P2b/1B1Bk3/pR3R2/p2B1bB1/3N1K2/rN2n1QR b - - 0 1 illegal: No proof kernel
4qn1B/1pr2BR1/3BN1b1/2N1Bk1b/Rp2bN2/P2n1NbK/2R1p3/r5QQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 f4 Kf7 Kf2 h5 Kg3 e5 c4 d5 c6 h4+ Kh3 e4 g4 d4 c5 e3 c7 d3 c6 d2 f6 Ke6 f7 Qd3 f5+ Ke5 f6 Qh7 g6 Ra3 g7 Kf4 Ne2+ Ke4 Nf4 Qg6 Rh2 Qh6 Ne6 Be7 f8B Ra7 g5 Ke5 f7 Ra5 g6 Qh7 Bb2+ Ke4 Bc4 Bd8 Bd6 Rc5 f8B Ne7 g8R Qh6 g7 Kf5 Bde5 Na6 Qh1 d1B Rc2 Qh5 Nd2 Qe8 Nf3 Ng6 Bfd6 Nf8 Bbc3 Bd7 c8N Bc7 Nb6 Ra5 Bd5 Nc5 Na4 Nd3 Nac5 Rh7 Bb3 Bb8 c7 Bc6 c8N Be4 Nb6 e2 Rcc1 Bc2 Nd5 Bb1 Rc2 Ra8 Kh2 h3 Ndf4 Bc7 Kg3 h2 Bc4 Bd8 Bd5 Bh4+ Kh3 Ra5 Rh8 Ra8 g8Q Rc7 Qgg1 Bg3 Rg8 Ra5 Bh8 Ra7 Bce5 Ra3 Qhg2 h1B Rg7 Ra8 Neg5 Ra3 Bf7 Ra5 Nge6 Ra3 Nfg5 Bf3 Q2f1 Bh5 Qd1 B1f3 Qh1 Bg6 Qdg1 Bfh5 Nf3 Nc1 Rc3 Be4 Rc2 Nd3 Rb1 Ra7 Rb3 Ra6 Ra3 Rb6 Ra7 Ra6 Ra8 Ra3 Ra6 Rb3 a3 Rb1 Ra5 Ra1 Ra4
2BnbRq1/1pbN1rb1/1NB3nR/2KQQ2p/6pP/4BN2/R3Nn1q/B4k2 b - - 0 1 legal: proof: f4 a5 g4 f5 c4 d5 cxd5 e5 fxe5 f4 b4 axb4 Bb2 Ra6 Ba3 Rf6 Bc1 Rf5 gxf5 Kd7 Ba3 Ke7 Bc1 Ke8 Kf2 Kd7 a4 g5 d4 c5 e4 f3 Ke3 c4 a5 f2 a6 h6 a7 b3 a8N b2 d6 Kc6 d5+ Kb5 Kd4 Qe8 f6 Na6 f7 Ne7 e6 Qd7 e5 Bg7 f8N Nb4 Bh3 f1Q Be3 c3 Nf3 c2 Ra2 c1B Nb6 Qe8 d7 Ng6 d8R Bd7 e7 Qe2 d6 Rh7 Rda8 Qf7 e8B Qg8 Rc8 Bc6 d7 Qc2 Bf5 g4 d8B Qf2 h3 Qh2 Bf6 Bd7 e6 Nc6+ Kd5 Nd8 Nc3+ Kb4 Be5 b1N Ne2 Nd2 Ba1 Ne4 Qd3 Ba4 Bc6 Nf2 Nfd7 Bcb2 Ra8 Bbe5 Qe4+ Kb3 Kc5 Bc7 e7 Bb5 e8Q h5 h4 Ba4 Rd1 Bb5 Q8e5 Ba4 Bb2 Bb5 Rd3+ Kc2 Rda3+ Kd1 R3a6 Ba4 Ba1 Bb5 Ng5 Ke1 Q4d5 Kf1 Nf3 Nf7 Rf8 Nd8 Qde4 Bc4 Q4d4 Bf7 Qdd5 Be8 Nf6 Bh8 Bc8 Rf7 Nfd7 Bg7 Nc4 Nd1 Bb5 Ne7 Rh6 Nf2 Bc6 Ng6 Ncb6
1RK1NNR1/2nB4/3Nq1q1/4pQ1p/k1BQPB1b/1n6/p1BR2N1/r1qb3b b - - 0 1 legal: proof: c4 b5 g4 a5 h4 d5 cxd5 g5 f4 gxf4 a4 Nf6 axb5 Rg8 g5 Rh8 h5 Ra6 Kf2 Ng8 Ke1 Rg6 hxg6 Bh6 Kf2 Bg7 Ke1 Bf8 Kf2 Kd7 Kf3 f5 d4 h5 e4 c5 b4 e6 g7 a4 g6 c4 b6 a3 d6 Kc6 d5+ Kb5 b7 a2 d7 Bc5 d6 Qa5 d8Q Nc6 b8N Ba7 d7 Rh7 Ne2 c3 Qd4 c2 Nd2 Qb6 Nc4 Rh6 Qg5 Qc7 d8N Qe7 Nb7 Bd7 Bh3 Qd8 Rh2 Qc8 Nbd6+ Ka4 b5 Na5 b6 Nb3 b7 Ne7 g8B Nd5 g7 Rf6 Ne8 Nc7 Rb1 Bb5 Nd7 Ba6 Be3 c1Q b8R Rg6 Qgf6 Rg1 Nf8 Bc5 Qg6 Be7 Ncd6+ Bc4 Bf7 Bh4 g8B Rh1 Ra1 Qg1 Qgf6 Qg6 Rg1 Qd7 Rhg2 Qe7 Rd1 Rg1 Rd2 Ra1 Nc1 Qd7 Nd3 Qc6 Ne1 Qb6 Rg4 e5 Ng2 Qa6 Rg3 Qb6 Kf2 f3 Bf4 Qa6 Ke3 f2 Bd5 f1B Bge6 Qh7 Rg8 Qg6 Bd7+ Qc6 Bg4 Be2 Qg5 Bd1 Be2 Qe6 Bd3 Bf3 Bc2 Qg6 Qb2 Bce2 Bc4 Bd1 Qd4 Qe6 Kd3 Qg6 Bh2 f4 Qf5 Qe6 Ne1 Bh1 Ng2 f3 Bf4 f2 Kc3 Qg6 Nb5 Qce6 Nbd6+ Ka5 Bd5 Bg4 Kc4 Nc1 Kc5 f1Q Kc6 Nb3 Kb7 Qc1 Bc4 Bd1 Nb5 Kb4 Kc8 Ka4 Nbd6+
qNQ2q2/1n1RBb2/1np1B3/k1PQB1R1/nQ5p/5b2/pb1B1K1Q/N1r3N1 b - - 0 1 illegal: No possible last move, all moves rejected
1r3BQ1/1q1k1pr1/R1p2K1R/2PR2Bb/1Q2q3/1Br2RQN/nN3p2/Q2n3q b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 b4 g5 b3 g6 Bd6 axb3 Ne7 b4 Ng8 b5 Bc5 Rh3 Be7 Rh1 Bg5 hxg5 Ke7 Ra4 Kf8 Ra1 Ke8 Kf2 h5 Kf3 a5 Ke4 a4 Kf5 d5+ e6 c6 b4 f3 e4 d4 c4 h4 b6 d3 c5 d2 b5 h3 g7 h2 b7 a3 e5 a2 b6 f2 g6 Qe7 Nc3 Ra5 Bc4 Ra3 Bb3 Qf8 Nh3 Rh7 Na4 Na6 b8B Qe7 b7 Nb4 Bd6 Bd7 b8Q+ Qd8 Nb2 Bc8 Bf8 Nf6 g8Q Qd7 g7 Ne4 Qg1 d1Q Bg5 Nc3 Kf6 Qb7 e7 Kd7 e8R Qe2 Qh8 Qb6 g8Q Qb7 Qg3 Rg7 Rhd1+ Qd3 Re6 h1Q Rd2 Qdd5 Rd3 Nd1 Rf3 Qe4 Rd6+ Ke8 e6 Ra8 e7 Ra3 Re6 Kd7 e8R Ra8 Rb1 a1R Re5 R1a3 R8e6 Na2 Ra1 Qc4 Ref5 Qe4 Qbf4 Rb8 Rd6+ Ke8 Rfd5 Bg4 Qd2 Bh5 Qb4 Nc1 Ba4 Rc3 Bb3 Qe3 Ra6 Na2 Kf5 Qe2 Rh6 Qc2+ Kf6 Qe4 Qhh7 Qg4 Qb1 Qe4 Rdf5 Kd8 Qa1 Kd7 Rd5+
8/KQ2Q3/1Np1bB1N/Rq1p1r2/r1P2b2/qBrQ1B1Q/k2N2p1/1Nq1R2n b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Na6 h3 Nc5 h4 Ne4 Bd2 fxg4 Bc1 g3 Nd2 g4 Nb1 Ng5 hxg5 Bg7 Qd4 Bh6 Qd1 Bf8 Kd2 Ke7 Ke3 Ke6 Kd4 d5 e4 h5 c4 a5 f4 a4 b4 h4 b6 a3 b5 h3 b7 h2 b8N g2 g6 g3 g7 a2 f5+ Kf7 f6 Ke6 b6 Rh6 b7 Rh3 f7 Ra4 Qd3 Rh4 Nf3 g1R Be2 g2 Bg5 Ne7 Kc5 Rb4 g8N Bg7 f8Q Bh6 Nd7 Rf4 b8Q Rf6 Nb6 Ra4 Qb7 Rc1 Re1 h1Q Nfd2 Rf5 Bf6 Qd7 Bf3 Bf4 Qh6 Rc3 Qh3 Qe8 Nh6 Bd7 Re3 Qc1 Re1 Qb8 Na8 Bc8 Kb5 Kd7 e6+ Kd6 Nb6 Qa3 Bd1 Qc1 Bb3 Qa3 Na8 c6+ Kb6 Ng6 e7 Ne5 e8B Ng4 Bh5 Nf2 Bhd1 Be6 Bf3 Qc1 Nc7 Nh1 Na8 Rb4+ Ka6 Kc5 e5 Bg5 Qc8 Qb5+ Ka7 Bf4 Nb6 Ra4+ Qa6 Bc8 e6 Kb4 e7 Be6 e8Q Qa3 Nf1 Qc1 Nbd2 Ka3 Qf8+ Kb2 Qe7 Rb4 Qab7 Ka3 Rb1 a1Q Rb2 Qa2 Rb1 Qab2 Ra1+ Qa2 Nb1+ Kb2+ Qa6 Qa3 Nfd2 Ra4 Be4 Qac5 Qhe3 Rb4 Ra5 Ra4 Qab7 Qa3 Qh3 Ka1 Bf3 Kb2 Bc2 Ka2 Bb3+
6K1/5p2/pkQ1R1N1/2p1r1b1/1B2Q2q/NqPRN1qn/1RBN1B2/Bbn1n3 b - - 0 1 illegal: No possible last move, all moves rejected
r3NK1R/7p/br1B1Q2/Qr1p4/1r1B1Q2/rBn1Np1q/4RQRP/2k1b2R b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 d3 Nc6 d4 Nce7 fxe5 cxd4 Ra3 f4 Ra1 Nf5 gxf5 Kf7 Kd2 Ke7 Ke1 Ke8 Kd2 Kf7 Kd3 a5 Kc4 g5 Kd5 d6 e4 g4 b4 f3 c4 d3 f6 Kg6 b6 a4 b7 d2 b8B Kg5 b5 Kf4 e6 Ke3 e7 g3 e8R a3 f7 a2 e5 g2 b6 Qc7 e6 Bh6 f8Q Ba6 b7 Qe7 c5 Bg7 c6 Qh4 c7 Qf2 c8R Ra7 e7 Bb2 Ke6 d5 Kf7 Qe2 Nc3 Kd3 Qa4 d1R Be3 Rb1 Nd1 Nf6 Qa5 Rc1 Nh3 g1R Bd6 Ng4 b8Q Bc3 Nf4+ Kc2 Bd4 Ra8 Ne6 Nf6 Nc7 Rb1 Ne3+ Kc1 Qbb4 Qd1 Bc4 Rg6 Bb3 Be1 Qg7 Ne4 Qf6 Rg4 Rg1 Qe2 Rg2 Nc3 Qc4 Qc2 Qf1 Qf5 Qf2 Rhg8 Rcd8 R8g5 Rh8 Re4 e8Q Rg6 Qea4 Qh3 Rde8 Rf4 Kf8 Re4 Bb6 Rb4 Bbc5 Rb5 Qah4 Rg4 Bd4 Re4 Qhf4 Re6 Bb4 Reb6 Bd6 Bd2 Bc4 Kb2 Nd1+ Kc2 Qa4+ R1b3 Qa5 R3b4 Rb1 a1R Ba2 Bc8 Re2 Bb7+ Ne8 Ba6 Bc4 Raa4 Ra1 Ra3 Ne3+ Kb2 Ng4 Kc2 Rh1 Kb2 Ba2 Kc2 Ne3+ Kb2 Nf1 Kc1 Ne3+ Be1 Bb3
3R1B1K/4rQnN/5bBb/1NB1Q2b/n3NBQk/1R5p/1p1p3P/nQ1q2b1 b - - 0 1 legal: proof: d4 b5 b4 a5 f4 f5 g4 c6 gxf5 Nh6 f6 Ng8 f5 axb4 e4 c5 dxc5 Qc7 f7+ Kd8 Qd4 Ra6 Qd1 Rf6 e5 Qb6 exf6 Kc7 Ba3 Kc6 Bc1 Qd8 Kd2 Kd5 Ke3+ Ke5 c4 d5 a4 h5 a5 g5 a6 h4 a7 h3 a8N g4 c6 b3 c5 b2 c7 b4 c6 g3 Nd2 b1N Ra3 b3 Ne4 b2 Bd3 g2 Rb3 d4+ Kf3 e6 Kg4 Rh7 Kg5 Nh6 Kg6 Nd2 Nf3+ Kf4 Nfg5 g1B Bb1 Ba6 c8Q e5 c7 d3 Qe6 Nd7 c8Q Nb6 Nc7 Na4 Nb5 Bb7 Qf1+ Kg4 Qd5 Be7 f8Q Kh4 f7 Bf6 Qh8 Qd7 f8B Re7 Qf7 Bd5 Kh7 Ba8 Nc5 Bf3 Nce4 Bh5 Qhg7 Qd8 Kh8 Qd7 Nh7 Qd6 Ra3 Nb3 Bf4 Na1 Rb3 Qd7 Bc2 Qd5 Qb1 Qd6 Ng3 e4 Qc3 e3 Ne4 e2 Qe5 Re6 Be7 e1B Bf8 Qd4 Be7 Bd2 Bc5 Bge3 Rf1 Bg1 Rd1 Bc1 Rd2 Re7 Rd1 Bg5 f6 Nf5 Qfd5 Bce3 f7 Bf6 f8B Bc1 Qf7 Qd7 Kg8 Bce3 Qgg6 Ng7 Kh8 Qg4 Rf1 d2 Rf3 Bef2 Rfd3 Qd1 Rd8 Bd4 Ned6 Bge3 Bf5 Bg1 Ne4 Bg5 Qge6 Bh6 Bg6 Bc3 Q5d6 Bf6 Qde5 Ra7 Q6f5 Re7 Qg4+
1R1qq1BK/p3kb2/QbRb2QB/p2rQ1B1/2R1b1pN/3N2P1/n4R2/2rB4 b - - 0 1 illegal: No possible last move
r5Bk/1qBpN1B1/R1QPq1pK/QQ6/B2p1n2/r1b2bb1/3N4/R1Q1Rb2 b - - 0 1 illegal: No proof kernel
2r2N2/q1R1pQ2/R1KB1n1k/QRBBBp2/1b2PRQq/7p/1bb1n1N1/b7 b - - 0 1 legal: proof: c4 b5 g4 a5 h4 d5 cxd5 g5 f4 gxf4 a4 Nf6 axb5 Rg8 g5 Rh8 h5 Ra6 Kf2 Ng8 Ke1 Rg6 hxg6 Bh6 Kf2 Bg7 Ke1 Bf8 Kf2 c5 Kf3 h5 Ke4 f6 b4 c4 d4 a4 d6 f5+ Kd5 h4 e4 a3 b6 h3 b7 a2 b5 f3 g7 Kf7 g6+ Kf6 d7 f2 b6 c3 Nf3 c2 Ne5 Rh4 Na3 Nh6 g8R Bg7 Be3 c1B Nc2 Qc7 d8Q Nd7 b8B Qc3 b7 Bb2 Qg4 Qa3 Ne1 Bh8 g7 Qa8 Bd6 Qa5+ Kc6 Bc3 b8B Qa7 d5 Bb2 Bc4 f1Q Ng2 Qf4 Bec5 Nb6 Rhb1 Be6 Ng6 Na4 Qa5 Nc3 Nf8 Ne2 Bbc7 Ba3 Rb5 Bb4 Rf1 Qg3 Rf4 a1B Be5+ Kf7 d6 Rh5 d7 Qh4 Ba2 Bb3 d8R Rg5 Rd5 Bc2 B7d6 Rg6 Rd3+ Re6 Bd5 Bb2 Qg5 Ng4 Rc3 Nf6 Qg4 Ba1 Nh7 Bb2 Ra8 Ba1 Nf8 Kg8 Ng6+ Kh7 g8Q+ Kh6 Qf7 Bb2 Nf8 Ba1 Bed4 Re5 Bc4 Rd5 B4e5 Rd3 Bd5 Rg3 Qf3 Rg8 Qg4 Bg7 Ra3 Bb2 Rc8 Ba1 Rc7 Bb2 Nh7 Rc8 Nf8 Bd4 Qa4 Ng8 Bf6 Ba1 Qa6 Bh8 Qb6 Bg7 Ra6 Bh8 Bb2 Bhc3 Qa5 Nf6 Bc1 Be5 B1e3 Bec3 Bed4 Bcb2 B4e5
1k3K2/n4p1Q/3Qq2p/R2pr2b/qB6/3NQP1B/2RBnB1Q/q1NRq1b1 b - - 0 1 legal: proof: e4 g5 h4 d5 hxg5 b5 a4 a5 axb5 Ra6 e5 c5 d4 Rd6 exd6 cxd4 Ke2 Kd7 Kd3 e5 c4 h6 b4 a4 g4 a3 c5 a2 g6 Qg5 c6+ Kd8 d7 Kc7 d8B+ Kd6 g7 Qe7 f3 Bd7 c7 Qh4 c8R Nf6 g8Q Ne8 g5 Bg7 b6 Ba4 b5 Nd7 b7 Nef6 b8B+ Ke6 b6 Qe1 g6 Qf2 b7 Rh7 Na3 Rh8 Ba5 Nb6 Bcd2 Kd7 Qb3 Qe1 Rc2 Nc8 Ne2 Ne4 Ba7 Nc3 Qh7 Re8 Nc1 Ne2 b8Q Bf6 Bc5 Na7 Qd6+ Kc8 g7 Bd7 g8Q Bg4 Bab4 Bh5 Qg1 Bg5 Qb2 Be3 Nc4 Re6 Qh2 Bg1 Qc3 Re7 Nb2 Re8 Rb1 a1Q Bh3+ Kb7 Qf6 Qa4 Ra1 Kb8 Qff4 Qd7 Qe3 Qe6 Ra5 Re7 Qa3 Qd1 Na2 Qa1 Nc1 Re8 Be1 Re7 Bbd2 Re8 Bf2 Re7 Bcb4 Re8 Rc7 e4+ Kc2 d3+ Kb3 Qb1 Bd6 Nd4+ Kb4 Qf6 Kc5 Re5 Qe1 e3 Bc3 d2 Nbd3 d1Q Bd2 e2 Be7 Qf5 Kd6 Qa4 Rc2 Qa1 Qc5 Qc8 Qc6 Qa6 Kd7 Qb6 Ke8 Qa6 Qd7 Q6c6 Kf8 Qe6 Qg3 Bh2 Beb4 Qf5 Rf1 Bg1 Qh2 Qe6 Qd6+ Ka8 Bdc3 Kb7 Qd2 Ka8 Rd1 e1Q Qe3 Ne2 Bd2 Kb7 Qa6+ Kb8 Qd6+
2qn2Q1/BQNBpp2/2n2Rn1/qn2r2p/N3Q2B/N1BQRP2/4K2k/r1b5 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Nb8 d5 Bg7 Nc3 Kf8 Nb1 Bd7 e6 Bh6 exd7 Kg7 Qg4+ Kf6 Qd1 Bf8 g4 Ke5 b4 a5 f3 c5 b6 h5 b7 a4 g5 a3 b5 h3 g6 c4 b6 a2 g7 c3 Qe2+ Kf5 Bg5 h2 Bh4 Kf4 Bh3 c2 Na3 Qc7 d8B c1N d7 Nc6 b8B Ra5 b7 Nf6 g8Q Ng4 d6 Nb3 Ba7 Bh6 b8Q Nbd4 Qb7 Qc8 Rc1 Rd5 Ba5 a1Q d8N Nge5 d7 Nb5 Bc3 Ng6 Qc2 Rf5 Ke2 Qa2 Rd1 Rc5 Rd3 Re5+ Re3 Qd5 Bf6 Kg3 Qe4 Bf4 Ne6 Nd8 Nc7 Qc5 Be6 Qb4 Bg4 Qa5 Bh4+ Kg2 Rd3 Bc1 Rd6 Rh6 Rf6 Rh8 Kd3 Rh6 Ne2 Rh8 Rd1 h1N Re1 Ng3 Bh3+ Kh2 Bf5 Ne6 d8Q Rh6 Qdd4 Nd8 Bd7 Nf5 Qde3 Bb2 Kd2 Nfd4 Q3d3 N4c6 Bb4 Nbd4 Nc3 Nb5 Re3 Bc1+ Ke2 Nf8 Na4 Rg6 Nc2 Bb2 Bh3 Rg1 Bc3 Ra1 Bd7 Ng6 Na3 Bc1 Qdd4 Nf8 Qdd5 Ng6 Qdd3
1Rn2K2/BQ1bp2k/3p1n2/q1pN2n1/1Q2Bb1R/4PB2/1R2Nr2/NR1q2Nn b - - 0 1 illegal: No possible last move
BBRK1Rr1/2N2Rnq/5pB1/1Qbp4/p2n1P2/QN4p1/1rN2b1k/3BbR2 b - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 hxg4 d4 d6 dxc5 Kd7 e5 Rh4 Bf4 Ke6 Bc1 Kf5 e6 Bd7 exd7 Rh8 Bg2 Kf6 Bf1 Ke6 Ke2 Kf5 Kd3 e5 Kc4 a5 Kd5 g5 b4 e4 h4 f6 c4 g3 b6 g2 b7 g4 b5 g3 c6 e3 h5 Kf4 Ke6 d5 c5 a4 c7 Bh6 c8B Qb6+ c6 Na6 b8R Qa7 d8N Qg7 b6 Ne7 Kd7 Qg8 b7 Bf8 h6 Qg4+ Ne6+ Ke5 c7 e2 h7 e1B Qb3 Qb4 Ne2 g1B Na3 Qe4 Kd8 Qg4 Bf4+ Kf5 Nc2 Qh4 Ne2d4+ Kg4 Qa3 Qh2 Bd3 Kh3 Nb3 Bb4 Bg6 Bc3 Rf1 Rg8 h8R+ Kg2 Be5 Qh7 f4 Qf7 R1h7 Nf5 Bd7 Bgd4 c8B Be1 Nc7 Ng7 Bc6 Nb4 Bg4 Bdf2 Rc8 Rb8 B4h5 Kh2 Bd1+ Nh5 Bd6 Qg7 Be5 Qh6 Rf7 Ng7 Bd6 Qh7 Be5 Nd3 Bd6 Nc1 Be5 Ne2 Bd6 Ra8 b8Q Nd4 Qb5 Ra6 Ba8 Rc6 Ne3 Rc2 Be5 Ra2 Nc2 Rb2 Bd6 Ne8 Be5 Bc5 Bd6 Rg7 Rhf8 Rg8 Ne6 Ng7 Bb8 Qh5 Nc7 Qf5 Bgh5 Qh7 Bg6
3K1k2/2N1Rb2/2p1PB2/B2QRp2/1NnQ1R1n/1r2q3/1pnp3N/bB1R2rB b - - 0 1 illegal: No proof kernel
1r4N1/1QN1Rk1N/1p1B3K/2rNBb2/2n2nB1/pQ2p1Rp/3Rq2P/b1n3B1 b - - 0 1 legal: proof: b4 b5 a4 Bb7 axb5 Ba6 b6 Bc8 b5 Na6 b7 Nb8 e4 g5 f4 d5 fxg5 Bg4 exd5 Bc8 b6 cxb6 Kf2 h5 Kf3 a5 Kf4 f5 c4 a4 g4 e6 d4 a3 d6 h4 d7+ Ke7 c5 h3 d5 Ra6 g6 e5+ Kg5 e4 g7 f4 c6 f3 c7 f2 Qb3 Rh6 Nc3 Ra4 Nf3 Ra5 Ra2 Ra8 Rd2 Rd6 Be2 Ra5 Re1 Nh6 g8R Qe8 d8B+ Kf7 Bf6 f1N Be5 Nd7 b8B Re6 d6 Ra7 Nd5 Nf6 d7 Ng3 Rg6 Bb7 c8Q Bg7 Bbd6 Ra8 Bcb2 Rb8 Bbd4 Re7 Bg1 Nfh5 Qc6 Ba6 Qb7 Bd3 Bd1 Nhf5 d8N+ Kf8 Ne6+ Kf7 Be2 Nf4 Nec7 Ne3 Bd1 Bh8 Kh6 Nge2 g5 Nc4 Rg8 Nc1 Rg7+ Kf8 g6 e3 Ng5 Bf5 Bg4 Qb5 Rh7 Kg8 g7 Ree8 Ree2 Rec8 Rg2 Qa6 Rg3 Qb5 Na8 Rc5 Nac7 Qa6 Ne4 Kf7 Nef6 Ra5 Bb4 Rc5 g8N+ Kf8 Re7 Qb5 Re6 Kf7 Nh7 Qa6 Bd6 Bb2 Bc3 Ba1 Bce5 Qb5 Qa4 Qb2 Qb3 Qc2 Re8 Qd1 Re6 Qe2 Re7+
RQ1Rn1k1/2QNb3/1pRPp3/2r1r2p/b1Qn2Bq/4p3/1K1R1QnB/3BN3 b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 f4 Kf7 a4 c5 g4 h5 d4 e3 f5 b6 d6 Kg7 g6 Be6 g5 Bc8 d5 Qe8 d7 Ra7 d8R Ra8 d6 Nc6 a6 Be6 a7 Bc8 a5 Nh6 a6 Ng4 f6+ Kg8 f7+ Kg7 Nc3 Qd7 Ne4 Nd4 Nf3 Nh2 Ra2 Nb5 Be2 Ng4 Qc2 Bb7 Kd1 Bc8 Ne1 Bb7 Nf6 Qc7 Nd7 Nh6 Bg4 Rc8 a8B Bc6 a7 Ng8 Qf2 Qb8 Kc2 Nf6 Kb2 Nd4 Rf1 Ba4 Baf3 Qb7 a8R Qe4 Bd1 Ne8 Rg1 Rh6 Rg3 Kh8 g7+ Kh7 Rf3 Re6 Rf5 Re5 g6+ Kh6 g8Q c4 g7 Rcc5 Bd2 Qh1 Bc3 Qh4 Qc2 Kg6 Rf2+ Kh6 Rd2 e6 Qgh7+ Kg5 Qhe4 Kh6 g8Q Be7 f8Q+ Ng7 Qf2 Ne8 Bb4 c3+ Ka1 Nf3 Qc4 Nd4 Qc1 c2 Kb2 Ra5 Qgf8+ Kh7 Bc3 Rac5 Rac8 Ng7 Rc6 Ne8 Qa1 c1N Qb1+ Nf5 Qc2 Ne2 Qc1 Nf4 Ra1 Red5 Be5 Ng2 Bh2 Re5 Ra3 Nd4 Ra2 Bb3 Raa8 Bc2 Qa1 Bb3 Qa7 Bc2 Qb8 Ba4 Q8f5+ Kh8 Qfd3 Kg8 Qa3 Bc2 Qaa7 Ba4 Qac7
K1QN3k/4BQ1p/Pp1q1rp1/1R1n1B1Q/5Q1r/1N1bb1p1/2R1rn1B/3R3R b - - 0 1 illegal: No proof kernel
8/5p1B/PB1R1rNN/k1NK1BQ1/3Rpp2/BQ1b1rbn/1nrqp3/Q6N b - - 0 1 illegal: Other
2B1rR2/q1nQP3/R1bb2Qp/4p3/2k1r1NN/r4QRQ/3pRpn1/2NKB3 b - - 0 1 illegal: No proof kernel
1N1qr1k1/1N1p2Bp/n2pB1bN/1Rp1P2r/1BRn4/n1N1Q1KB/Q2b3Q/8 b - - 0 1 illegal: No proof kernel
Q7/p1QR2p1/3Br2R/1Q1P2Nn/Kp6/1N1R1n1b/bbQ1R1rp/kB3Nq1 b - - 0 1 illegal: No proof kernel
QN3nQR/8/1BB2qr1/2kp2p1/1RP1RB1p/q3bp1N/2N1N2r/1RnK3b b - - 0 1 illegal: No proof kernel
5rB1/1q3R2/2Q1p1np/1Q1B1BNK/1Nb1P2Q/4bB1p/3pR2N/1n1Nrqk1 b - - 0 1 illegal: No proof kernel
2r1b1Q1/BB3Np1/2Q2ppN/1qqBP2R/k2rRb2/8/BNp1n1K1/2Rn1R2 b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 a4 g4 a3 g5 Be7 g6 hxg6 bxa3 Nf6 a4 Bf8 a5 Ng8 Kf2 Kd7 d4 c5 e4 b5 a4 f6 h4 c4 a6 c3 h5 c2 a7 b4 e6+ Kd6 h6 b3 e7 b2 e8R Ne7 a5 Rg8 h7 Nec6 h8R Qe7 a6 Kd7 d6 Na5 d5 Bb7 Nh3 Qe5 Na3 b1Q Rh5 Rh8 Be3 Qbb2 Ng5 Bc8 Nc4 Nac6 Rc1 Qa2 Nb2 Qc3 Kg2 Na5 Bc4 Qd4 Nf7 Qc5 Qf3 Qb1 Ba2 Nbc6 Nh6 Rb8 a8B Nd4 a7 Nc4 Bb7 Ne2 a8B Rg8 Bd4 Rh8 Rhf1 Ne3+ Kh1 Nd1 Kg2 Be7 Qc3 Bd8 Re6 Bc7 Re7+ Kd8 d7 Bf4 Re6 Kc7 d8N Rg8 d6+ Kb6 d7+ Kb5 Ndf7 Rd8 Bbd5 Ba6 Bab7 Rbc8 Qf3 Ka5 Bf2 Bb5 Ree5 Rh8 d8Q+ Kb4 Qg8 Be8 Rh4 Rd8 Reh5 Rd7 e5 Rd6 Bdc4 Rd4 Qc6 Ka3 Bd5 Kb4 Nd3+ Ka5 Rg4 Qbb5 Bg1 Ka4 Bf2 Bh2 Re4 Bf4 Nb2+ Ka3 Ra1 Bd7 Nf5 Qe7 Ne3 Rd3 Qh7 Rc8 Rc1 Be8 Ng4 Qf8 Bb6 Rd4 Qg8 Qfc5 Ba7 Kb4 Ngh6 Ka3 Nd3 Ka4 Nb2+
NB1N1R2/RBqP1p2/n7/r1B1p2q/3r1knp/Qp4N1/2QB3N/1bb3KQ b - - 0 1 illegal: No proof kernel
q1Q1n2b/1p6/RBR1B2K/1k1bQ1r1/B3N1PN/Q3pQp1/4pnRB/3rq3 b - - 0 1 illegal: No proof kernel
1q6/PN2qp1p/3pBr1B/pr3nB1/7k/2N1N1Rb/2Q2B2/1RQKnRbN b - - 0 1 illegal: No proof kernel
1Q2n2B/pQrbQ2B/1pQ3N1/b2pqn2/1R2Rq2/1Rp2B2/P2N4/2B1K1kr b - - 0 1 illegal: No proof kernel
2r3qN/2Rp3B/nnk1ppBr/3bPR2/1Q3K2/2B2pQ1/1B1r1R2/Q3nRN1 b - - 0 1 legal: proof: d4 g5 h4 c5 dxc5 b5 f4 gxf4 a4 Na6 axb5 Nc7 g4 Na6 g5 Bh6 g6 Bg5 hxg5 Nb8 Kd2 a5 b4 h5 c4 f3 Ke3 h4 c6 f6 g7 e6 c5 h3 g6 a4 c7 a3 b6 a2 c6 h2 b5 Rh6 b7 Qe7 b6 Qd6 Na3 Qd5 Nb5 Qd6 Bb2 Qc5+ Kf4 Rh8 e4 Rh7 Bd3 Ra3 Nd6+ Ke7 Nf7 Rh3 Nh8 Na6 b8B Kd6 b7 Ne7 g8Q Rc3 g7 Qd5 e5+ Kc5 Bg6 Rg3 Ba7+ Kb5 b8Q+ Bb7 c8R Qd6 c7 Kc6 Bd4 Rg2 Rb1 Rcc2 Bdc3 a1N Qe1 Ba8 Qb4 Rgd2 Qg3 Bb7 Rf1 Rc1 Rb8 Nc2 c8R+ Qc7 Qe8 Ne1 g8B Rcc2 B8h7 Nd5+ Ke4 Nb6 Kf4 Rc1 Qee7 Ba8 Qa5 Rcc2 Qa1 Bb7 Rf2 Ba8 Rg8 Qc8 Rb7 Qf8 Rg7 Qg8 Qb4 Rc1 Nh3 Rcc2 Rhf1 h1R Ng1 Rh5 Bd3 Rh6 Rg5 Rc1 Bdg6 Kd5 Bd4 Rc8 Bdc3 Kc6 Ra7 Bb7 Rf5 Kc7 Ra8 Bd5 Ra7+ Kc6 Rc7+
B1R1QQ2/1p2r3/R1r1N2q/Np1kpQb1/1Q2N1n1/1Pr5/K2np2B/4R1Nq b - - 0 1 illegal: Other
Q4Q2/BB3qbq/r1Q4R/p1K2np1/5Nkp/PRnpB3/b1N1QB2/2b1N3 b - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 f5 gxf5 b5 h4 a5 c4 Ra6 h5 Rg6 hxg6 bxc4 Kd2 Ke7 Ke3 h5 Kd4 d5 e4 c3 b4 c6 f4 c2 b5 Be6 f6+ Kd7 g7 Nh6 g8N Qc8 f7 Rh7 b6 Bf5 e6+ Kd6 b7 Rg7 e5+ Kc7 e7 Kd7 e8Q+ Kc7 e6 Kd6 e7 Ke6 Be3 c1Q Bg2 Qd8 Nf6 Rh7 Qe2 Qf1 Na3 Nd7 b8B Bg7 f8Q Qc7 Nc2 Nc5 a3 Ne4 Nf3 Nc3 Kc5 d4 Rb1 d3 Nfe1 Bh3 Qg6 Nf5 Rb3 Rh6 Ba7 Qd7 e8Q+ Qe7+ Kc4 c5 Qa8 Qf7 Rh2 Qh1 Bb7 Bg2 Qh7 Be4 Nd5 Rf6 Qg6 h4 Rf2 Qf3 Rf1 Qh5 Rf3 Qh7 Qh6 Nd4 f5+ Ke5 Qg6 Ra6 f6 Bf5 Rf4 Be6 Rf3 Nf5 Rf4 Qd7 Qge8 Qf7 Qc6 Ne4 Kb5 c4 Rf2 c3 Nf4 Nfg3 Rf3 Kf5 Bf2 Kg4 Bae3 Qfg6 f7 Nf5 Ba7 Nf6 Kc5 Nd5 Qh8 Qf6 f8B Qf7 Be7 Nde3 Bf6 Nd1 B6d4 Bd5 Bde3 Be6 Nb4 c2 Qhf8 c1B Nbc2 Bd5 Rb4 Ba2 Rb3 Nd4 Nfg2 Nc3 Rf6+ Kh3 Rh6 Nf5 Nf3 Kg4 Nf4 Bh8 Be1 Be5 B1f2 Bg7 Nfe1+
3n1R2/Qp1N2pB/p3B1B1/4B3/p1Q3r1/b1q1Nr1N/PNb3R1/2k1qrRK b - - 0 1 illegal: Other
NKB2n2/1B4kB/2bB2N1/2Rr1prn/p1p2QQ1/2npb3/bR2NP2/R4N2 b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Na6 a4 Be7 h4 gxh4 a5 Bf6 b6 Nb8 b5 Bg7 b7 Bf8 Bh6 Qf6 Bc1 Qb6 axb6 Bd6 Ra5 Bc5 Ra1 Bf8 Kd2 c5 Kc3 d5 g4 f5 e4 Kf7 g5 h5 e6+ Kg6 e7 a5 e8N d4+ Kc4 a4 Kd5 h3 e5 h4 e6 d3 e7 h2 Kd6 h3 Kc7 Nd7 b8N Rh6 b7 Ra7 b6 Rh7 Qg4 Rh8 Ne2 Rh5 Nc6 Ra5 b8Q Bg7 b7 Bh8 Nd2 Ra6 Ne5+ Kh7 g6+ Kh6 g7 Rg5 Ba3 Ra5 Ng6 Ngf6 g8B Ne4 Bh7 Nf8 Bg2 Bd4 Rhc1 h1B Nf1 Be6 Rc3 Bf7 Kc8 Bd5 Nc7 Ba2 e8B Kg7 Bd7 Be3 Na8 Rb5 Rc4 Nc3 Qbg3 Ra5 b8R Rb5 Rb6 Ra5 Bb7 Bc6 Rb2 h2 Q4f4 h1N Qgg4 Ng3 Kb8 Nh5 Bdc8 Rb5 Rd4 c4 Rd5 Rb6 Ra5 Rb5 Bd6 Rd5 Rc5
1b1Nnn2/3p1RQB/7B/5B2/QNbRrRp1/p2PR2k/p3Qr1n/1BbK4 b - - 0 1 illegal: No possible last move
1B1R1NQQ/1bb2b1p/7P/B1rNN1Q1/1B4Kp/k1b5/Bp2nrp1/1QqR4 b - - 0 1 illegal: Other
qBN1Q3/1Q3B2/1NKbQNp1/rRpp2r1/3NQ3/2bp1nP1/b1R3b1/k1B5 b - - 0 1 illegal: No proof kernel
nQBr4/RN3RpN/3BpQ1n/3QQ3/2R1p3/1BK1pb2/P3kbqp/5Br1 b - - 0 1 illegal: Other
n7/3KR1R1/RR2RB1Q/1n3Rb1/3pP1B1/nB1N1Bq1/N1p1p1r1/k5b1 b - - 0 1 legal: proof: d4 f5 g4 h5 gxh5 b5 e4 e5 a4 a5 axb5 d6 b4 a4 Qf3 Ra5 bxa5 f4 dxe5 Qe7 c4 Bd7 c5 Qe6 c6 Qf6 a6 Bc8 b6 Qd8 Qe3 Bb7 cxb7 fxe3 Ke2 Ke7 Kd3 Ke6 Kc4 g5 Kb5 c5 h4 c4 f4 g4 f5+ Kf7 e6+ Kf6 h6 Ke5 e7 Kd4 e8B g3 h5 g2 a7 a3 a8B c3 f6 d5 f7 a2 h7 e2 h6 c2 Nf3+ Kd3 Rg1 d4 Bd7 Ba3 f8R Bb2 Bg4 Bc3 Rf5 Qf8 Bg5 Be1 Bf6 Qg7 Ne5+ Ke3 Nd3 Bd2 Nc3 Na6 Kc6 Ne7+ Kd7 Nc7 b8R Rg8 h8Q Nb5 Re8 Nd5+ Re7 Ndc7 Bd5 Na8 h7 Qg5 Bf3 Qg3 b7 Bc1 b8R Kd2 Bb3 Rg7 Rh1 g1B Rb6 Rg8 Rbe6 Rg7 Rb1 a1N Na2 Kd1 Rb2 Bg5 Bh3 Kd2 Bhg4 Rg6 Bd5 Nb3 Rh6 Na5 Bb3 Nc4 Qg7 Nca3 h8R Kd1 R6h7 Kd2 Qh6 Rg7 Rb8 Rg8 Rbb6 Rg6 Nac1 Kc3 Ra2 Rg7 Ra1 Rg8 Nb4 Kb2 Rhg7 Nc4 Ra5 Nca3 Nbd3+ Ka1 Na2 Rh8 Qg6 Rh2 Raa6 Rg2 Qh6
kbRQNb1N/1B3R2/3R2q1/K2bq2n/2R3R1/1P4R1/B1b1B2q/nn1rB3 b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 d4 Kd7 Kd2 e5 Kc3 h5 b6 c5 d6 Kc6 b7 c4 d7 e4 f6 a4 f7 e3 d5+ Kb6 g7 Ka7 d6 h4 Kb4 h3 g6 c3 Nf3 a3 Nh4 a2 Rg1 h2 Be2 h1Q Na3 c2 Nc4 f3 Bd2 c1B Be1 f2 Rg3 Qc7 d8R Bd7 Rc8 Ne7 g8B f1B g7 Qg2 Ng6 Be6 d7 Bd5 d8R Nd7 b8R Rh1 Nh8 Nf6 Nd6 Nh5 Ne8 Qb6+ Ka4 Qg6 Rd6 Qh2 Rc4 Bh3 Rb7+ Ka8 Ka5 Bf5 Rbb4 Bd2 Rac1 a1N Bh7 Bb1 g8B Bc2 b3 Bc3 Rcg4 Bd4 Rc4 Ba7 Qd2 Bb8 Qd3 Bh6 f8R Bg7 Rf7 Bf8 Rc8 Rf1 Qd4 Rh1 Ba6 e2 Qb6 Rf1 Qd8 Rh1 Bc3 Rd1 Be1 Bb1 R1c4 Bc2 Bd2 e1Q Bc3 Qe5 Be1 Qgg7 Bd3 Qg6 Bh7 Ng8 Bf1 Ngf6 Be2 Ne4 Rg1 Qgf5 Bd3 Nd2 Be2 Bce4 Bg6 Qg5 Bf5 Qg6 R1g3 Bh1 Bfd3 Bhe4 Bb1 Bc2 Ba2 Nb1 Bb7+
B1B5/2RrBnRN/1R1Q1r1r/R1r1q1B1/2n4n/4N3/1n3kPr/1K3BqB b - - 0 1 illegal: Other
KB2qB1k/2NNb1r1/1R1R3p/BR1r4/3Rq1P1/1nQq4/2Br2R1/1b2R2n b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Kd3 Kg7 Kd4 e6 f4 b3 b6 h6 d6 c6 Kc5 b2 d4 e5 g6 e4 b7 e3 d5 e2 Ra6 e1Q Qd3 Qee7 Rb6 Qe2 Na3 b1R Nf3 Qd7 Bd2 Qe1 Ba5 Qde7 Ne5 Qc7 Nb5 Qe4 Qc3 Qa4 Bd3 Ra7 Nd7+ Nf6 Bc2 Rh7 Re1 Qd8 Nc7 Qe4 g4 Kg8 g7 Nh5 f6 Qde8 f5 Rd1 Rb5 Ra8 Kb6 Na6 b8B c5 Kc6 c4 Rb6 Kf7 g8R Rd2 Rg5 Ng3 Rh5 Kg8 Rg5+ Kh8 f7+ Qd4 f6 Be7 f8B Nc5 f7 Nh1 Rh5 Qe5 Rh2 Ba6 Rg2 Nb3 Rb5 Rg7 Rb6 Bb5+ Kb7 Ba4 Rb5 Ra6 Rb6 Qe3 Rb5 Rc6 Ka8 Qh3 Ne5 Qe3 d7 Qd3 d8R Rc5 d6 Rd5 d7 Qe4 Rc8 Qd3 d8R Qe4 Rd6 Qd3 Qa1 c3 Rcd8 Qe4 Rbb6 Bd7 Rb5 Bf5 Rdb6 Qd3 Rdd6 Be4 Nd7 Bg6 Bd1 c2 Qc3 c1Q Bc2 Qb1 Bd1 Qh3 Kb7 Bh7 Ka8 Bd8 Be7 Rc5 Rd4 Rd5 Beb4 Qhe3 Be7 Bc2 Bc5 Q3e4 f8R+ Rg8 Rff2 Rg7 Bf8 Be7 Rff6 Bd3 Rfd6 Qc2 Qa1 Qc4 Qb2 Bb1 Bc2 Qcd3 Qc3
1k1B1B2/N1R2pKb/N3N3/2qn1N2/N3RN2/rb1nrr2/B3nrBP/7Q b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Bc5 f4 exf4 axb5 a4 Bg2 Bb6 Bf1 Ba5 bxa5 Rh7 Nc3 Rh6 Nb1 Rh8 Kf2 Kd7 Kf3 g5 Kg4 c5 Kf5 c4 d4 a3 e4 f3 d6 f2 e5 a2 d5 c3 e6+ Ke8 h6 c2 b6 g4 b7 g3 d7+ Ke7 d6+ Kf8 h7 g2 e7+ Kg7 e8N+ Kf8 a6 Nc6 b8N Na7 Nc3 Qe7 Bg5 c1N Nge2 g1R Nc6 Rg2 Nb4 Rg4 Ng7 Nc6 a7 Ba6 d8N Qc7 d7 Rg3 Bg2 f1B Nf4 Bac4 Na4 Nf6 Nde6+ Ke7 d8N Re8 h8B Nd3 Rc1 Kd7 Bd5 Rb8 a8B Kc8 Bg2 Be2 Re1 a1R Rc2 Bh5 Re4 Rf3 Qh1 Nd5 Be7 Rb6 Bf8 Bb3 Kg5 Ra2 Kh6 Nd4 Ndc6 Ra3 Na7+ Kb8 Nf5 Qc5 Bf6 Bg6 Bd8 Bh7 Kg7 Ne2 Bc6 Re7 Bb5 Rf2 Bc4 Rc6 Nc7 Rh6 Nce6 Rh3 Rc1 Rhf3 Rc3 Bc2 Ba2 Bb3 Rc2 Qd6 Rc7 Qc6 Nec5 Re5 Nce6 Qc5 Rd4 Ree3 Rc4 Nb2 Re4 Nd3 Na6+
q7/1k2nB2/3qN2r/1KB3R1/1n1R4/1PB1nBb1/2BpNbQ1/rBRnR3 b - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Ke2 e5 Kd3 h5 Kc4 a5 g7 h4 f6 e4 b3 d3 f7+ Ke7 b6 Kd6 b7 Kc7 g6 d5+ Kb5 d4 c4 a4 c5 d2 c6 h3 g5 d3 Bg2 h2 Bb2 e3 Nh3 a3 Bc3 e2 Bf3 e1N Qc2 d1N Nf4 a2 Qg2 d2 Ne6+ Kd6 c7 Ne3 c8B Ne7 g8B Nd3 g7 N3f5 g6 Qc7 Rc1 h1Q Bh7 Na6 b8R Nf2 g8B Nd1 g7 Nfe3 Bc2 Rh6 Bgh7 Ra7 g8R Nb4 Rg5 Bg7 f8B Be5 Bd7 Bg3 Be8 Qd8 Bf7 Qh2 Rb7 Qa8 Rb8 Kd7 Rb6 Kc8 Rd6 Bf2 Rd4 Qd6 Bb2 Ra3 Nc3 Ra4 Rab1 a1B Ne2 Bg3 Bc3 Bb2 Rdd5 Kb7 Bhd3 Ra1 Rd4+ Nbc6 Bdg6 Ba3 Bge4 Bc5 Bed3 Nf2 Re1 Nfd1 Rc1 Ba7 Bb1 Bb6 Bdc2 Ba7 Rgd5 Nb4 Rg5+ Nec6 Rf5 Qdb8 Qh2 Ng4 Re4 Baf2 Rd4 Nge3 Bc5 Qd6 Rfd5 Ne7 Qg2 Kc8 Rf5 Kb8 Rfd5 Kb7 Rg5+
R2N1R2/3RBKR1/PR6/Bn3BN1/4rRq1/nn1Bk2Q/q1bb3p/1q4b1 b - - 0 1 legal: proof: f4 g5 g4 b5 c4 d5 fxg5 f5 g6 f4 g7 a6 cxd5 f3 h4 Qd7 h5 Qd8 g5 a5 b4 axb4 exf3 Ba6 f4 Bc8 f5 Ra3 Bh3 Ra6 Bf1 Rg6 hxg6 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 a4 b3 f6 e6 f7 b4 a5 b2 a6 b3 Qf3 h4 Ne2 c6 Nbc3 b1N Ra4 b2 Qh3 Ne7 g8B Qa5 g7 Nd7 g6 Nc5 Bh7 Na3 g8R b1Q g7 Qg6 d3 Qg4+ Nf4 Nb3+ Ke4 Kc5 Ke5 Nf5 Kf6 e5 d6 e4 d7 e3 d8R e2 Bd2 e1Q Rd7 Nd6 Bf5 Qb1 d4+ Kb6 d5 Kc5 Be2 Ndb5 d6 Rh7 Bc4 Kd4 Ne4 c5 Bd3+ c4 Ng5 Bb7 Rh8 Be4 g8R Rg7 Bb4 c3 Rh2 Rh7 Rb2 c2 Rg7 c1B Ke6 Be7 f8R Bd2 Kf7 Rh6 Ra8 Re6 Rhe8 Bd8 Rf8 Bb6 Bc5+ Ke5 Bb4 Bg1 Bc5 Re8 Nfe6 Kd5 Rc4 Ke5 Nd8 Kf4 Bb6 Qa4 Ba5 Re5 Qh1 h3 Qg2 h2 Qh3 Nc1 Rbb4 Nb3 Rc6 Re6 Rb6 Re8 Qg2 Ke3 Qh3+ Bf3 Rf4 Re5 Rdb7 Re4 d7 Qc4+ Nde6 Qcc2 d8B Qba2 Be7 Qcb1 Qh8 Be2 Nd8 Bd1 Rd7 Bc2 Qh3+
4N1N1/2p3b1/qr6/RRn1k3/1Bn1B1RK/R3RB1b/1Q1PR1bq/4n1qB b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Kf2 Kd7 b4 Kd6 b6 h5 f6 e5 f7 h4 b5 e4 b7 h3 b6 f3 Kg3 f2 g7 e3 g6 a4 Bg2 f1B Ra3 e2 Nf3 e1N Nh4 h2 Nc3 Qd7 Bf3 Ke5 d6 Qf5 d7 Bb5 d8R Ng2 Re1+ Ne3 Rd5+ Kf6 Qb3 h1Q Qb2 Ng2 Re2 Nf4 Ne4+ Ke6 Nd6+ Qe5 Ne8 Bc4 Nf5 Ne7 g8B Qh6 g7 Na6 b8R Nc6 b7 Nc5 Ne7 Na5 Bh7 Nfd3+ Kg4 Bb5 g8B Bg7 Bhe4 Qeh2 Rg5 Rh7 Ra8 Ne1 b8R Bc6 Rb5 Nc4 Raa5 Rh8 Rae3 a3 Bgh7 a2 f8R a1Q Ng8 Qb1 Rff5 Qg6 Raa3 Qf6 Bg6 Rh6 Bh1 Qa1 Bef3+ Be4 Rf4 Qd4 Bf5+ Ke5 Rba5 Rb6 Rb5 Qg1+ Kh4 Qa2 Rfg4 Qg2 Rad3 Qa6 Ra3 Bd7 Qb3 Qd6 Bb2+ Qd4 Bc3 Qg1 Ba5 Qd6 Bb4 Qh6+ Rh5 Qf4 Qb1 Qfh2+ Kg5 Qgg2 Rba5 Qhg1 Kh4 Kd4 Rf4 Nb3 B3g4 Be6 Bh7 Bc8 Rhb5 Nc5 Bh5 Bh3 Qb2+ Kd5 B7g6 Q2h2 Bf5 Beg2 Be4+ Ke6 Bhf3 Be5 Rec3 Bg7 Rg4 Ke5 Rce3+
1NR2r1r/2R1Np1q/1qq2B1q/2Pn4/k2KQbB1/1B3B1R/B2nR3/B6q b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 b6 h5 gxh5 a5 b3 a4 Qd3 a3 Qd1 Bb7 Bg5 Bc6 Bc1 Ba4 bxa4 Bc5 Bg2 Be7 Bf1 Bf8 Kf2 g5 h4 d5 e4 Kd7 c4 Kc6 e6 a2 e5 d3 Ke3 d2 h6 g4 e7 g3 e8B+ Qd7 e6 g2 h7 Bb4 h5 Ra5 e7 Bc3 h6 Kc5 b7 Kb4 c5 Rb5 a5 Bf6 a6 Qc8 a7 Bh4 a8B Qc7 Rh3 Qd7 Nc3 Qd8 Bc6 Bf6 e8B Ne7 Nf3 Rb6 Bb2 Qc7 Qe2 d1Q Bed7 Be5 Nd4 Qa4 Bg4 Nd7 b8R Nf6 Re1 a1Q Rb7 Qb1 Ba1 Ne4 Qf3 Qab3 Re2 Nd2 Qe4 Rf8 Bcd7 Qc6 Rc7 Rbb8 h8B Q1c2 h7 g1Q+ Rf2 Ka3 Bf6 Qh1 h8R Qbb6 Bc4 Rbc8 Bde6 Bf4+ Ke2 Qcc1 Kd3 Rcd8 Re2 Rde8 Nf3 d4 Nd5 Ka4 Ne5 Rd8 Nd7 Qh2 Ne3 Nd5 Nb8 Rc8 Nf5 Rce8 Rf3 Qh7 Ne7 Qch1 Rg8 Q1h6 Rh3 Rc8 Rg7 Rh8 Rg8 Rf8 Ba2 Nb1 Kc4 d3 Kd4 d2 Bb7 Ne3 Bec4 d1Q+ Qd3 Qdh1 Qe4 Nd5 Ba8 Rd8 Re8 Nd2 Rf8 Rd7 Rfc8 Rdd8 Bg7 Nb4+ Qd5 Qd7 Bf6 Rdf8 Bb7 Qe8 Qe6 Qeb5 Bbf3 Nd5 Qe4 Q5c6 Bcb3+
1B2KN1R/2pR3b/1b1B3r/PbNk1qR1/3B2q1/1R1B1bb1/Q5B1/B2b2r1 b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 g3 h4 Bh6 e5 Kd7 f6 Bf8 f5 Nc6 f7 Nf6 exf6 Nd4 Na3 Ne6 Nb1 Ng5 hxg5 Ra5 Be2 Ra3 Bf1 Ra8 Ke2 Kd6 Kf3 h5 Kf4 b5 a4 b3 d4 e6 a5 b4 g6 g2 Kg5 e5 g7 h4 Kg6 b2 g8B b3 Bd3 e4 Qc2 e3 Nf3 g1Q+ Ng5 Qg4 Ra3 e2 Rg1 e1B Be3 h3 Nc3 h2 Na4 Bh6 f8B+ Qe7 f7 h1B f6 Bb7 Bg7 Bc6 f8B Bb7 f7 Bf3 Qf2 Qh4 Nh7 Kd7 d6 Ke6 d7 Bbc6 d8B Qh2 d5+ Kd6 Ba7 Qh4 Bc3 Be3 Qh2+ Kd7 d6 Bh1 Qe2 Ke6 d7 Qc5 Bd6 Bhd5 Bdf6 Bb5 Qg2 Bb7 d8R B3f2 Rd7 Qf5+ Kg7 Bb6 Qc2 Re8 Rg5 Bef2 Bfe5 Qhg4 Bed4 Bh1 Qb1 Bg3 Qa2 Re7 Bb8 Re8 Bf1 Re7 Kf8 Bf3 Bg2 Bd1 Nf6 Rh6 Nh7 b1B Bg7 Qd5 Bgd4 Be4 Ba1 b2 Rb3 Qdf5 Nc5+ Kd5 Be3 Bef3 Bg1 Re1 Bd4 Rg1 Ke8 Kc6 f8R b1B Bf7 Qff4 Rh8 B1d3 Nf8 Bh7 Bc4 Qff5 Be2 Kd5 Bd3
3BR1NR/1q1bbnkB/NBBrR3/2pP4/KB2B3/2r5/4qp2/R2Qb1n1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 h4 g5 d4 f5 Kd2 Kf7 Kc3 c5 Kb3 f3 e4 f2 b6 f4 d6 g4 b7 f3 a6 g3 e5 g2 a7 Qg5 h6 Ne7 h5 Kg8 h7+ Kf7 d7 Kg7 d8B Bd7 e6 Qf4 h6+ Kf6 Na3 Qd2 Bd3 f1Q Nb5 f2 Ka4 Qg5 Ne2 g1B Nc3 Qg4 Bd2 Rg8 h8R Nc6 b8B Qfh3 h7 Ne5 Ne4+ Kg7 Bb4 N7c6 e7 Bh2 e8B Bf4 Bbc7 Bd2 Re1 Qh1 Bb6 Nf7 Nc7 Qe2 Na6 Be7 Nf6 Rc8 a8B Nce5+ Bc6 Nf3 Be4 Rf8 Ng8 Ng1 Bb5 Rc6 d5 Rd6 Bc6 Qhf3 Qc1 Bc3 Qd1 Qb2 Re3 Be1 Re2 Ng5 B8g6 Nf7 Bef5 Qd3 Re6 Qde2 Bc2 Ng5 Bge4 Rf3 Nf6 Rc3 Re8 Nf7 h8R Rg3 Ng8 Rh3 Bd2 Rc3 Bh7 Qb1 Bce4 Qb2 Ba7 Qb7 Bab6 Rd3 Bda5 Rc3 Bb4
1N3B2/2prR2b/N1qk4/2bN1R2/b1p3R1/5q1R/2R1rPnQ/1n1KRNB1 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 b4 hxg5 b3 axb3 Na6 b4 Nh6 b5 Nb8 b6 Ng8 b4 d5 b5 Nf6 b7 Qd7 b6 Qb5 cxb5 Ng8 Bc4 dxc4 d4 Kd7 g4 e5 d5 a5 g6 h5 f6 h4 f7 a4 g5 h3 d6 a3 g7 h2 g6 a2 Nf3 e4 Nfd2 e3 Qh5 e2 Nc3 Rh6 Nf1 Ne7 g8R Ke6 d7 Ra3 d8R Bd7 g7 Rh7 Re8 Na6 b8N Nc5 b7 Kd6 b6 Na4 Na6 Ng6 b8R Nf4 Nd5 Re3 b7 Nc3 Re7 Nb1 Rd8 Re4 b8N Re5 Rde8 Ba4 Rh8 Re6 g8R Re4 Rhg1 h1B R8g5 Re5 Bd2 Be4 R1g4 Rg7 Qh2 Bh7 Rf5 Re3 Re4 Be7 f8B Rf7 Bg7 Bf8 Rd8+ Rd7 Re7 Na3 Rde8 Bb3 Ref7 Bg8 Rhh5 Bh7 Rc1 Nb1 Ne7 Ke6 Rh3 Ba4 Qg1 Re4 Nc8+ Be7 Be5 Kd5 Rcc3 Ba3 Ne7+ Ke6 Bg7 Kd6 Bf8 Re6 Rfg7 Bb4 Rc1 Bc5 Qh1 a1Q Bc3 Qa3 Rc2 Qb2 Nd5+ Ree7 Bf6 Qb6 Bh4 Qb5 Bg3 Qc6 Bh2 Nc3 Bg1 Ng2+ Kd2 Nb1+ Kc1 e1Q+ Kb2 Qe4 Kc1 Qe5 Qh2 Qf4+ Kd1 Qg3 Re4 Qf4 Rg4 Qg3 Re1 Qf4 Bh6 Re2 Re7 Qg3 Bf8 Qf4 Qh1 Qf3 Qh2+
4R1q1/P2pn2N/N1nN1q2/qr3Rb1/b2N1N2/rk1pB1NQ/5K2/R1R1B3 b - - 0 1 legal: proof: e4 h5 d4 a5 g4 f5 exf5 c5 gxh5 e6 dxc5 a4 Bc4 a3 Bd5 exd5 bxa3 Qb6 a4 Qc7 a5 Qd8 h4 Kf7 f4 b5 c4 g5 a4 g4 h6 d4 h5 d3 h7 b4 h6 b3 a6 b2 a5 g3 a7 g2 a6 Qf6 c6 Bg7 c5 Qc3+ Kf2 Ke7 c7 Bd4+ Be3 Nf6 c6 Kd6 Ne2 Kd5 Nd2 b1Q Ne4 Kc4 N4g3 Nd5 f6 Ne7 f5 Bb6 f7 Qbb2 f8R Qd4 f6 Qb5 f7 Qbc5 Qf1 Qc3 Nd4 Bb7 c8N Q3a3 c7 Qg5 Nd6+ Kb4 c8R Bc6 Rce8 Rg8 h8N Ka4 h7 Qh5 Ng6 Bd8 h8B Qe5 Nf4 Rg5 Bf6 Rh5 Bh4 Qf6 Rg1 Bb5 Rc1 Nbc6 Ra1 Rb8 a8N Rf5 Nc7 Ra8 Rc1 Kb4 Ra1 Ba4 Rc1 Rb5 a7 Rab8 Ra1 Ra5 Rh1 Rbb5 Na6+ Kc3 Qg1 Kb2 Qh2 Qa2 Qh3 g1Q+ Kf3 Qe1 Rg1 Qc3 Rgc1 Qae6 Kf2 Qg4 Rh8 Qg8 f8N Qa3 Rh5 Qaa2 Nde2 Kb3 Nh7 Qd2 Nb8 Ra6 Rf5 Qa5 Nd4+ Kb4 Ra2 Qff8 Kf1 Qc7 Kf2 Bd1 Ng6 Nc8 Nge4 Bg5 Raa1 Qf6 Kg3 N8e7 Nf4 Ra3 Na6+ Ka4 Kg2 Qa5 Bhf2 Bb3 Ng3 Bc2 Nb8 Kb4 Na6+ Kc3 Kf1 Kb2 Be1 Ba4 Nde2 Kb3 Kg2 Kb2 Kf2 Kb3 Nd4+
3Bb2B/7R/2rBk1nQ/1n1r1r2/K1Np1pr1/5BB1/nNB1q1PN/R6N b - - 0 1 legal: proof: f4 c5 d4 cxd4 b4 b5 a4 e5 fxe5 g5 axb5 g4 c4 g3 c5 Qa5 hxg3 Qc7 g4 Qd8 g5 Bd6 Rh6 Bc7 Rh1 Bb6 cxb6 Qe7 Rh6 Qf6 Rh1 Qd8 Kd2 Ke7 Kc2 h5 Kb3 f5 e4 a5 g6 d5 b7 h4 e6 d3 g7 d2 b6 d4 e5 h3 b5 h2 Nh3 Qe8 Qh5 d1N Bg5+ Nf6 g8N+ Kd8 e7+ Kd7 e6+ Kd6 Qh6 Kd5 Bd3 Ra7 Ka4 Nfd7 Nc3+ Kd6 Nf2 Ke5 Bc2 Nf8 Nf6 Nc6 b8B+ Rc7 b7 Bd7 b6 Ng6 N6g4+ Kd6 Bf6 Rf8 Bh8 Rf7 Ba7 Rf6 b8B Nb4+ Ka3 a4 b7 Na2 Bb6 Ne3 Ncd1 Nd5 Ba5 Ndc3 Nb2 Kd5 Bb6 Rc6 Bg3 f4 b8B Rf8 Bd8 Rf5 Rhc1 h1R Bd6 Rhh5 Nh1 Rh4 Nh2 Rg4 Re1 Qf8 e8B Qe7 Bf7 Be8 Re4 Qa7 Ree1 Qa6 Bg8 Qe2 e7+ Qe6 Bh7 Qe2 Be4+ Ke6 Bf3 Nc1 Kb4 a3 Rd1 Nb5 Ka4 a2 Rd3 Rc2 Rc3 Rd5 Rc7 Rc6 Rb7 Bf7 e8N Rf5 Nf6 Be8 Ne4 Rd5 Nd2 Rf5 Rb1 Rd5 Ndc4 a1R+ Kb4 Ra8 Ra1 Na2+ Kb3 Ra7 Rg7 Rf7 Ka4 Rf6 Rd7 Nh4 Bhe4 Ng6 Rh7 Rff5 Bc2
BN6/pb1Qn3/4qkr1/R1b1p1Nq/1P2NBr1/3K2N1/Rr4N1/2BB1N1r b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Nf6 h4 Ng8 h5 Nc6 g5 Ne5 Ra5 Kd7 Ra1 Ng6 hxg6 Ke8 Ke2 h5 d4 e5 b4 Ke7 d6+ Ke8 d7+ Ke7 f6+ Ke6 b6 c5 d5+ Kf5 b7 c4 b8N h4 f7 h3 d6 c3 g7 h2 g6 c2 Kd3 f3 Nd2 f2 Ra5 Kf6 Ne2 Kf5 Ng3+ Kf6 Bg2 Ne7 g8N+ Kg5 g7 f1R Nf6 Nd5 g8B Rh5 Nfe4+ Kg6 Ra2 Qe7 d8B Rhf5 d7 Qd6 Bg5 R5f4 d8N Rg4 Ne6 Bb7 Bf4 Rf2 N6g5 Qe6 Ndf1 Bc5 f8N+ Kg7 Rg1 h1Q Ng6 Qh5 Nh4 Ne7 Bf3 Rh2 Ng2 Kg6 Qd2 Kg7 Bd1 Kg6 Bb2 c1R Ra5 Rc2 Bc1 Rb2 Rh1 Rh3 Rh2 Kg7 Nc6 Rf8 Nb8 Rf6 Bf7 Rhh4 Be8 Rg6 Bc6 Bc8 Ba8 Bb7 Kc3 Rh3 Qd7 Rhh4 Kd3 Rh3 Ne1 Rhh4 Rf2 Rh2 Ng2 Rh1 Nc3 Kf6 Rc2 Rb1 Rca2 Rb2 Nce4+
Rnn3r1/1pN3n1/5Q2/nR1bkB2/B7/N3bB1R/1PB1pRrR/1n2K1R1 b - - 0 1 legal: proof: e4 a5 d4 c5 dxc5 g5 f4 f5 exf5 a4 f6 a3 Nxa3 Kf7 Nb5 Ke8 Na7 Qb6 Nf3 Qc7 Ng1 Qd8 h4 Qb6 g4 Kd8 h5 Qc7 f5 Ke8 Bf4 gxf4 g5 Qd6 Bd3 Qd5 Bc4 Qf7 Bf1 Qg6 hxg6 Bg7 Ne2 Bh6 Ng1 Bf8 Kf2 e5 c4 d5 a4 Kd7 a5 h5 g7 d4 c6+ Kd6 c5+ Kd5 f7 h4 c7 h3 g6 h2 f6 e4 a6 d3 c6 d2 Be2 f3 Ra3 Bf5 c8B Nd7 c7 Ke6 Nh3 Rb8 Nb5 Rh6 a7 Bb4 f8R Ba5 a8R Ne7 g8R e3+ Kf1 f2 g7 Bc3 f7 Bd4 Nf4+ Kf6 Rd8 Be4 f8R+ Ke5 Ne6 Rg6 Rh8 Bc6 g8B Rg2 Rg1 h1N Bh7 Ba7 Qc1 d1N Bc2 Nc3 Rh2 Nb1 Ra5 Bc5 Na3 Bf3 Rf6 Bc6 Rg8 Bd5 Rgh8 Ba7 Bh5 Bd4 Ke2 f1N+ Kd1 Bb6 Be2 Nfd2 R8h3 Ng3 Rff1 Nf6 Bd7 Ngf5 c8B Nc4 Nc7 Ng7 Bda4 Nd7 Rb5 Na5 Qd2 Bc5 Ke1 Ba7 Bg4 Bb6 Qf2 e2 Qf8 Be3 Rf6 Nec6 Rf4 Nb6 B8f5 Re8 Qf7 Nb8 Rf2 Nc8 Bf3 Rg8 Qf6+
B2K2bB/NN1RP2r/k5rn/1r6/2npNn2/2Q1p3/2RNb3/B1B2BrB b - - 0 1 legal: proof: e4 c5 h4 b5 d4 cxd4 a4 g5 axb5 Na6 hxg5 Nb8 f3 e5 Kd2 d5 Ke2 d3+ Ke1 d4 f4 Qd5 exd5 e4 Qg4 Bg7 Qd1 Be5 fxe5 Ke7 Be2 Kf8 Bf1 Ke8 Kd2 Kd7 c4 Kc7 g4 Kb6 b4 a5 d6 f5 c5+ Kb7 g6 h5 d7 h4 d8N+ Ka7 g7 h3 c6 h2 e6 f4 g5 a4 c7 a3 g6 a2 b6+ Ka6 b5+ Ka5 b7 f3 b6 f2 e7 Bg4 c8N Rh7 Qb3 Nc6 b8B Rh8 b7 Bf3 Na7 Rh5 Bc7+ Ka6 b8B Rh4 Nh3 Na5 Ng5 Bg4 Qc3 Rh7 Nb7 Nf6 g8B Rh3 g7 Rg3 Bd5 Bh3 g8B Be6 Be5 Bf7 Bbd6 Ng4 Bb4 Rb8 Bh8 Nh6 Bc6 Bc4 Bgd5 Rg4 Rg1 h1R Rg2 Rg3 Bba3 Rhh3 Bab2 e3+ Kd1 d2 Kc2 d1R Ne4 Rg6 Nbd2 Be2 Rb1 Nc4 Kb3 a1N+ Kb4 Nc2+ Kc5 Ne1 Ba1 Rh4 Rh2 Ng2 Rb2 Nf4 Rc2 Rhg4 Rh5 Rh4 Rf5 Re1 Rf8 Rh3 Rd8 Rh1 Rd7 Rhg1 Bg2 f1B Bh1 Bh3 Ba4 Be6 Kc6 Bg8+ Kc7 Rd1 Bac6 Rdf1 Be6 Rf2 Bh3 Rh2 B3g2 Rh5 Bf1 Rb5 Bd5 Rf8 Bc6 Rf7 Kd8 Rfg7 Na5 Rf7 Ba8 Rh7 Nb7
1QN5/1q3p1q/1N1NNB2/N2bqq2/nrR2R2/kpR5/bR1P2B1/N3bK2 b - - 0 1 legal: proof: c4 b5 b4 a5 g4 axb4 f4 d5 cxd5 g5 h3 e5 fxe5 h5 Nc3 Ra6 Nb1 Rah6 Kf2 h4 Ke1 Rh5 gxh5 g4 Qb3 g3 Qd1 Nd7 Qa4 Ndf6 Qd1 Ng4 hxg4 Bc5 Nh3 Bd6 Ng1 Bf8 e4 Kd7 a4 c5 e6+ Kd6 a5 c4 g5 Kc5 a6 g2 g6 h3 g7 h2 e5 c3 h6 c2 e7 b3 e8R Kb4 d6 b2 e6 Qc7 d7 Be7 d8N Qc6 h7 Bf8 e7 Qd5 a7 Bh3 a8N Qb3 Na3 b1B Nb6 Qe6+ Ne2 g1Q Ra2 Nf6 g8N Bg7 Nac4 Qge3 Bg2 Qc6 Rf1 h1Q Ne6 Nd7 Rc8 Bf6 e8N Nc5 Bb2 c1Q Ne7 Qe5 Na5 Qc2 Nd6 Qcf5 Bd4 Bg4 Rb2+ Ka3 Qc1 Be4 Qb1 b4 Nc1 Qb7 Ncb3 Na4 Rc3 Rb8 h8R Qhh7 Rf4 Bd5+ Kf1 Bh4 Rhc8 Be1 R8c4 Bd1 Na1+ Bb3 Rc1 Ba2 Nec8 Qe3 Bf6 Qee5 R1c3+ b3 Qd3 Qa6 Qg3 Rb7 Nd7 Rb4 Ndb6 Qa8 Qg8 Qb7 Qd8 Qa7 Qc7 Qb7 Qb8
1rN3K1/2B5/B3npp1/1rN2B2/n1rn1R2/B4PB1/Q1Nk1B1n/4qnNR b - - 0 1 legal: proof: b4 b5 e4 d5 a4 dxe4 axb5 c5 bxc5 f6 g4 Qb6 h4 Qa6 g5 Kd7 g6 Qb6 h5 Qd8 h6 Bb7 Ke2 Bd5 Ke1 Bf7 gxf7 g6 Ra5 Qc8 Ra1 Bg7 hxg7 Qd8 Ke2 Ke6 Ke3 Ke5 f8B a5 c4 h5 c6 h4 f3 h3 c7 a4 c8N a3 d3 a2 b6 h2 c5 Ra4 b7 Nc6 Na3 Qa5 Qd2 Rc4 Nc2 Nd8 c6 Ne6 c7 Nh6 b8B Qc3 Rb1 a1R g8B Ra5 Nb6 Rb5 c8N+ Kf5 Nd7 Ng4+ Ke2 e3 d4 Qa1 Kd3 e2 d5 Qa5 d6 e1N+ Ke2 Qb4 Ba3 Nd3 Nc5 Nb2 d7 Na4 Kd3 Qa5 Qg2 Qe1 Bg3 Kg5 Bf2 Kf4 Bf7 Rg8 d8B Rh8 Rb4 Rg8 Nd6 Rh8 Bc7 Rg8 Bg7 Rgb8 Bh6+ Ng5 Bd4 e5 Ne8 Qf2 Ne3 Rc2 Nd6 R5b7 Be6 Rc1 Bf5 Rc2 Ba1+ e4+ Kd4 Qh4 Ba6 Rb5 Kd5 Rc1 Rd4 Rc4 Qa2 Qf2 Nc2 Qe2 Ne1 Ke3 Nc8 Qd1 B1b2 Qa1 Nd3 Kd2 Kd6 e3 Ke7 e2 Kf8 e1N Kg8 Nc2 Nb4+ Ke3 Re4+ Kd2 Bd4 Qe1 Bf8 Ne6 Bfd6 Ra5 Bf2 Rab5 Bb2 Ncd4 Nc2 Rbb4 Ba3 Rb3 Nh3 R3b5 Rf1 h1N Be5 Ng3 Rh1 Nf1 Beg3 Ngh2 Ng1 Ra5 Rh4 Rab5 Rf4
3k4/1BNn1R2/n2K2p1/B2NnQNB/b1q3Bp/3Pr1Np/N1N3rR/7q b - - 0 1 illegal: Other
2bR1q2/2K1Bnq1/4p3/BNP1Q2b/1p3N1R/pNNBrb1B/6Nr/N2k4 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Rh6 d4 cxd4 a4 Rh7 a5 Rh8 b4 e6 Bh6 Bc5 Bc1 b5 Be3 Nc6 Bc1 Bb6 axb6 a5 Ra3 a4 Ra1 Na5 bxa5 Kf7 Bb2 Ke7 Bc1 Ke8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 f4 a3 h4 g4 c4 d3 b7 d2 b8N d6 a6 g3 h6 g2 a7 Qe8 c5 Bb7+ Nc6 Qb8 h7 Qe8 h5 Qe7 h6 Qd7 Qh5 d1B Nc3 Qe7 Bd2 Be2 Rd1 Bc8 Nf3 g1Q Nfd4 Qc7 Nb3 Bb7 Na1 Rb8 a8B Qg6 Rh4 Re8 Bh3 Bc8 Nd4 Qa5 Ndb3 d5+ Kd4 Kf7 Ke5 d4 Kd6 Kf6 Be4 Ba6 Bd3 Qa4 Kc7 Rd8 Be1 Kf7 f6 Bf3 Qe5 Qg7 f5 Bc8 Bd2 Qa8 Be1 Ke8+ f7+ Ke7 f8B+ Kf7 f6 b4 Be7 Bh5 Bg3 Qf3 Bh2 Qf5 Rd2 Kg6 Rd1 Kg5 f7+ Nf6 f8N Bf3 Bb1 d3 Ng6 d2 Nf4 Rd3 Ng2 Re3 Bd3 Bh5 Rg1 d1B Bg3 Bde2 Rd1 Bef3 Rd2 Rg8 h8N Rd8 Ng6 Rh8 N6f4 Rh7 Bb1 Rh8 Rd7 Rh7 Bd3 Rh8 Bd6 Ng4 h7 Nh6 Bh2 Nf7 Rd8 Re8 h8N Rf8 Nhg6 Rh8 Nfe2 Rh6 Ned4 Rh7 Qe4 Qff6 Ndb5 Qf8 N2f4 Q6g7 Be7+ Qf6 Ng2 Re1 Kb6 Bhg4 Bc7 Rh8 Rh6 Rh7 Bed6 Q6g7 Qd4 Re4 Be7+ Kf5 Kc6 Rh8 Ba5 Rh7 Be2 Re3+ Kc7 Rh8 N6f4 Rh7 Ne1 Rh8 Bg2 Rh7 Rg6 Rh2 Bc4 Bh5 Rg4 Qh7 Bh3 Qhg7 Qd7 Ke5 Neg2 Kf5 Rh4+ Ke5 Na4 Ke4 Bf1 Bfg4 Qd6 Kf3 Bd3 Kf2 Bb1 Bf3 Qe5 Kf1 Ng6 Ke2 Bd3+ Kd1 N6f4 Qfg8 Rd6 Q7f8 Rd8 Qgg7 Nac3+
2BBN3/1R2q3/n2PBRN1/1Q4rp/1pR1RK1B/1qnR3p/2rRq3/6rk b - - 0 1 legal: proof: h4 a5 b4 d5 bxa5 g5 c4 gxh4 cxd5 Nf6 d6 Ng8 e3 Bd7 Be2 Bg4 Bf1 Bc8 f3 e5 d3 e4 d4 Bg7 d5 Bd4 exd4 e3 Qe2 Bf5 Qd1 Be4 fxe4 Ra7 Qg4 Ra6 Qd1 Ra8 Ke2 Kd7 Kf3 b5 g4 h5 a4 c5 g5 f5 a6 b4 e5 c4 a5 f4 e6+ Kc8 e7 Kd7 e8R e2 a7 e1R g6 c3 g7 c2 a6 h3 Ne2 Qg5 Re4 Qh4 Na3 Qd8 Ra2 Qf8 Qd3 Qe8 Nb5 Qg6 Nc7 Nc6 Ne8 Nf6 g8B Rb8 a8R Qg1 a7 Rd8 Rc8 Qg7 a8R Nb8 Rc4 Na6 Rb8 Rc8 Rb7+ Rc7 Bg2 Qe7 Rf1 Rh7 Be3 c1Q Rd2 Qb1 Bf2 Qb3 Bh4 Rg7 Rf2 Rg5 Be6+ Kd8 d7 Rg1 Rc3 Rc5 Qb5 Rc8 Rcd3 Rc2 Rc3 Qb2 Rc4 Qb3+ Re3 Ne4 Rdd3 Nc3 Re4 Qh7 Bf1 Ke7 d8R+ Kf8 d6 Qe7 Bc8 Kf7 d7 Kg6 d5 Kf5 Nd4+ Kg6 Nc6 Kf5 Rfd2 Qb1 Ne5 Qb3 Kf2 f3 Ke3 f2 d6 Nc5 Bg2 f1Q Ng6 Qd1 Re6 Qg4 Bd5 Na6 Ree4 Qg2 Nf6 Qh2 Rh8 Qg2 Rh6 Qg4 Ne8 Qd1 Nf4 Kg4 Rf6 Qf1 Rf5 Qd1 d8B Qf1 Bde6 Qe2+ Kd4 Nc7 Ke5 Na6 Rd5 Kf3 Ng6+ Kg2 Kf4 Kh2 Rf6 Kh1 R5d3
qB1Bb2r/1nNp1B1b/3R1bB1/p1Q4N/1q2P3/1B2pk2/Rb2B3/N1N4K b - - 0 1 legal: proof: d4 b5 e4 e5 h4 g5 hxg5 c5 dxc5 a5 a4 bxa4 Be2 f5 Bf1 Nc6 Bf4 Nd4 Bc1 f4 f3 Nf5 exf5 e4 Bb5 e3 Bf1 Ra6 Qd2 Re6 Qd1 Re4 fxe4 Bh6 Rh3 Bg7 Rh1 Bf8 c4 Kf7 g4 h5 b4 h4 f6 Kg6 c6 h3 c5 f3 b5 h2 b6 a3 f7 a2 b7 Be7 b8B Ba6 f8N+ Kg7 g6 Kf6 g5+ Kg7 c7 Bd3 c8B Bf6 c6 Qc7 Bb7 Rh7 Na3 Qd8 c7 Bb1 c8N Qb6 Bb2 Nh6 Qd6 Qb3 Be2 f2+ Kf1 Qd1+ Kg2 Qd4 Na7 Ng8 Qc5 Rh8 Nh7 Qd2 N7b5 Qb4 Nc7 Qa4 Nc2 Nh6 Bd5 Nf5 Bb3 Qb4 Ba3 Bb2 Nf6 Nd6 Bf7 Nb7 Be8 Qb3 Bb4 Qa4 Ba3 Qb4 Nh5+ Kg8 g7 Kh7 g6+ Kh6 g8B f1Q+ Kg3 Qf4+ Kg2 Qf8 g7 Bf6 Bd5 Kg5 g8B Bb2 Bg6 Qd8 Ba7 Qa8 Bb8 Kh4 B8f7 Kg5 Bec4 Kg4 Ne2 Bf6 Rd1 h1B+ Kg1 Kf3 Nc1 Bg2 Rd3 Bh3 Kh1 Bf5 Bb5 Bb2 Bb3 Bf6 Rd6 Bb2 Be8 Bf6 Bgf7 Bh7 Bb2 Be7 Bg7 Bf6 Bf8 Bb2 Be7 Bf6 Bd8 Bb2 Na3 Bd3 Bg6 Bc4 Nc2 Be2 Bef7 Bc4 Rb1 a1B Ba6 Bf6 Rb2 Be2 Ra2 Bab2 Na1 Bc4 Bg8 Bf7 Bf1 Be8 B8f7 Be7 Ba6 Bef6 Be2+
k1NR1Kb1/b3B1Qq/1R4R1/rn1P1B2/2rq1n2/1B4b1/1N1b3B/bB1B1R1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Kd7 Ke3 a5 Kf4 c5 Kf5 Kc7+ e6 Kb7 g4 h5 b4 c3 d4 h4 e4 h3 e5 a4 b6 c4 g6 a3 g5 a2 g7 f6 Kg6 c2 Kf7 h2 b5 f5 e7 c3 e8R f4 g6 f3 e6 f2 e7 Nd7 Na3 Rh6 Be2 f1N Nf3 Ra7 Nd2 Qc7 Nac4 Ngf6 g8B Ng3 g7 Qc5 Rd8 Rh5 e8B Nge4 Nb2 Ng4 Qg1 Ngf2 Ndc4 Rh4 Bh7 Bd6 g8B Ndf6 Bd1 Bg3 Nd6+ Ka8+ Kf8 Nd5 Beg6 Nf4 Bf5 Ra5 Bb3 Qb4 d5 Qd4 Bd2 c1B Bhg6 c2 Bb4 Nc3 b7+ Kb8 Qg2 Bd2 Rg1 c1B Bh7 Ka7 b8B+ Ka8 b6 Be6 Nc8 h1Q Be7 Bg8 Bb1 Qh3 Bhf5 Nb5 Be5 Nh1 Rf1 Bf2 Qg7 Rg4 Rg1 Qh7 Rg3 Rh4 Rg6 Bde1 Bb8 Bcd2 Bc7 Nd3 Bh2 Nf4 Rgd6 Bg1 Rg6 Bg3 b7+ Kb8 Bbd3 B1f2 Rc1 a1B Bb1 Bfe3 Nd6+ Ka7 b8R Bef2 Rb6 Bg1 Rd7+ Ka8 Nc8 Qd3 Rbc6 Ng2 Bdg4 Ba7 Rd8 Qe3 Be2 Rc4 Rf1 Nf4 Rb6 Qd4 Bed1
4RkN1/1rRr1b2/1N1q4/NP4b1/K1R1QRqn/nN2B3/4q1Bq/2Nr1Nq1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 e5 f4 h5 g4 a5 d4 c5 Kd2 a4 Kc2 h3 g5 h2 f6 e4 f7+ Ke7 d6+ Ke6 b6 c4 d7 Ke7 g6 e3 f5 c3 g7 e2 d5 e1R b5 h4 b7 a3 Kb3 h3 Nd2 c2 Bg2 a2 Qg4 Rd1 Nf1 Nh6 Ne2 Nc6 b8N Nb4 Be3 c1Q Na6 Rb8 Nc5 Rb7 Ka4 Nc2 Nb3 Qd2 Rc1 Na3 Rc4 a1Q Nec1 Rh7 Qe4+ Qe5 Rg1 h1Q Rc7 Qe8 d8N+ Qd7 Rc4 h2 g8N+ Kd6 f6 Qe2 Rc7 Be7 f8N Qdg4 f7 Be6 Nd7 Nf5 f8R Bg5 Nc6 Nh4 Nb6 Rd7 Rf4 Bf7 Nca5 Qee6 Nf6 Ke7 d6+ Kf8 Ng8 Re7 d7 Qd6 Bf3 Qhg2 Rc4 Q2g3 Bg2 h1Q Rc7 Qhh2 d8R+ Kg7 Rc4 Red7 Rdc8 Qgf2 R8c7 Kf8 Rh1 Qhg1 Rh3 Qh2 Rg3 Qfg1 Rh3 Nf3 Rh6 Nh4 Re6 Qgh3 Re7 Qhg4 Re8+
R3nKb1/1PN1R3/4Q1qr/3rrR2/2NR1qnk/1N5n/2RRBbrB/3b1N2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 e5+ d6 a5 b4 h5 d4+ Kf6 f4 c6 g4 e4 g5+ Kg7 b6 h3 f6+ Kg6 d5 a4 f7 h2 b7 h4 f5+ Kh7 b5 h3 b6 a3 f6 Kg6 Nf3 Kh5 g6 e3 g7 e2 Ra2 e1R Bf4 Rh6 Be2 Kg4 Rc2 a2 Nfd2+ Kh4 Na3 a1R Nf1 Be6 Nc4 R1a2 Be5 Be7 f8N Qe8 f7 Nf6 g8R Ng4 Nd7 Rb2 f8N Qg6 Rg7 Bg8 Ne6 Rba2 Rg1 h1N Bh2 Nhf2 Nc7 R8a7 Qb1 R7a5+ Qb5 Bg5 Re7 Bf4 Rg2 Bg3 Rd2 Rd1 Rd4 Rad2 Rf4 Re1 Rf5 Raa2 Qa6 Rab2 Bg1 h2 Qa2 h1B Bh2 Rd3 Qb3 Rdd2 Qe3 Rbc2 Qe6 Nh3 Bd1 Rh8 Rh7+ Nh6 Ne8 Ra2 Na5 Rab2 Ne5 Nf2 d7 Rb5+ Kd6 c5 Ke7 c4 d8R c3 d6 c2 d7 c1Q Nb3 Re4 Nc4 Ree5 Kf8 Nh3 Re7 Na6 b8R Ng4 b7 Nc7 Rg5 Rh6 Rf5 Ra5 Re2 Bf3 Ra8 Rda2 Rf2 Qf4 Rg2 Nb5 Re2 Nd6 Nc7 Ne8 Rb2 Be4 Rg2 Bc2 Bf3 Bd1 Re2 Rd2 Rf2 Rd3 Rc2 Rc3 Be2 Bf2 Rdc8 Rg3 d8R Rg1 Rdd2 Rg2 Rcd8 Rac5 R8d3 Rcd5 Rd4
NR1N2B1/2N3b1/3r3N/Bb1QrPkq/3B2bn/BNnN4/3b1Kbn/R1b5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kf6 d4 e5 g4 c5 d6 a5 d7 h5 b6 h3 b5 a4 d5 e4 b7 c4 d6 h4 b6 c3 Bc4 c2 Ra3 h2 Nd2 h3 Kf2 Qe8 d8B+ Ne7 d7 Qh5 Ra1 a3 Nb3 a2 Ba3 c1B Bg8 Bh6 Nf3 Nc6 b8B Na7 b7 Nb5 Qd5 Ra5 Ne5 Nc3 Ba7 Bg5 b8N Rh6 Rf1 h1B Bd4 h2 Na6 Bg2 Nc7 h1B Na8 Rc5 Bc7 Ng6 d8N Nh4 Ba5 Rb5 Rb1 a1B Re1 Bab2 Ra1 Bd2 Reb1 Bbc1 Rb2 Rg6 Rbb1 Bh6 Rb2 Bg7 Rbb1 Rc5 g5+ Ke7 Nd3 Rd6 g6 e3+ Kg1 e2 Kf2 e1N f6+ Ke8 f7+ Ke7 f8N Bg4 f5 Nef3 Rb2 Nh2 Nfe6 Bf1 Nec7 Bhg2 Qf3 Re5 Qd5 Kf6 Rbb1 Bh8 g7 Bfe2 Nbc5 Kg5 Rb8 Bef1 Nb3 Bfe2 Be6 Bef1 g8N Bg7 Nh6 Bfe2 Bg8 Bef1 Nf4 Bb5 Nd3
nQ3RNr/8/N1Bb1P2/4nbk1/N1nN1rnN/2qnBb2/BbN2RB1/5K2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kf7 b4 Kg6 f4 h5 g4 a5 d6 e5 d7 c5 d5 e3 b6 e2 f5+ Kh7 d6 a4 f6 Kg6 b7 h4 b5 c4 b6 c3 Nf3 e4 Ra2 c2 Bg2 h3 Nh4+ Kh7 Nc3 a3 Na4 h2 Be3 c1B Qb3 Na6 b8N Nc5 b7 Nh6 Nc6 Bb2 b8N Na6 Nb4 Qa5 d8N Bf5 d7 Nc7 Na6 Bd6 Ne6 Rag8 d8N Na8 Rf1 h1B Nf7 Rg6 Kf2 e1N Nd4 Nf3 Nbc2 Ne5 Qb8 Qc3 Rfa1 Rgg8 Kf1 Rc8 Rd1 Rc4 Rd2 Rb4 Rf2 Rc4 Ra1 a2 Re1 a1N Rc1 Ng8 Nh6 Nb3 Rd1 Na5 Rdd2 Ne7 Ng8 N7g6 Rd3 Qd2 Rb3 Qc3 Rb6 Rb4 Rc6 Nac4 Rc8 Nf7 Rf8 Nge5 Bh3 Bf3 Bg2 Nh6 Ne7 Rg8 g6+ Kh8 g5 Nhg4 g7+ Kh7 Rd8 Rh8 Rf8 Be6 Ng8 Bd7 Nhf5 Kg6 Nh4+ Kh5 g6 Bf5 Nh6 Nd3 g8B Nde5 Bf4 e3 g7 Bg6 Bd5 Bf5 g8B e2+ Kg1 e1N Kf1 N1d3 Bc6 Ncb6 Ba2 Nbc4 Bh2 Kg5 Ng8 Na5 Bg1 Rc4 Nb5 Rf4 Nbd4 Nac4 Rd2 Be6 Be3 Bf5 Rf2
N3N1r1/1BP1K1Q1/3B1N1q/q1R1Nb1R/n2R3R/1k2p1N1/r2Nnb2/3q1r1b b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 b4 a5 f4 e5 h4 g5 c4 g4 f6 Ke6 b6 a4 f5+ Kd6 c5+ Kc6 b5+ Kd7 c6+ Kd6 c7 Kc5 f7 Kb4 b7 g3 h6 a3 h7 a2 h5 g2 h6 Nf6 b6 Nh5 f6 Ra4 Bf4 Qd6 Rh4 Be7 f8R Ra6 f7 Qe6 Ne2 g1Q Bg2 Bc5 Rd8 Rf8 h8N Bd6 h7 Qh1 Qg1 Qg4 Ng3 Kb3 Ng6 Nd7 h8R Bc5 b8N Rg8 f8N Qg5 b7 Nb6 Nbd7 Na4 Nf6 Bf5+ Be4 Ra7 b8N Qh6 Qg2 Qe1 Ne6 Qa5 Nbd7 Ra8 Nb6 Ra7 Nf1 Ng3 Na8 Ne2 Ng7 Bb6 Nge8 Ra6 Na3 Bc5 Rd1 a1R Ng3 Ba7 Rd2 Rf1 Rc2 Bc5 Nb1 Bb6 Rc5 Ra7 Nc3 Ra6 Kd2 d3 Ke3 d2 Nb1 d1B Bf3 e4 Ne5 Qf8 R8h5 Qh6 Qh3 Bc2 Qg4 Bd3 Qg5 Bb5 Qg7 Bc6 Rh2 Rh1 R2h4 d4+ Kf2 d3 Ke3 d2 Rd4 d1Q Nd2+ Ka3 Bg2 Rf1 Rdc4 Bb5 Nf7 Nac3 Bf3 Ba7 Bg2 Rb6 Rd5 Bc6 Rd7 Ng1 Kd4 Na4 Rc2 Bd5 Ke5 Rb2 Kd6 Ra2 Ke7 Bf2 Rc5 e3 Be4 Bc6 Rd4 Ne2 Bd6 Bb7 Ne5 Bd5 Bd3 Bh1 Be4 Kb2 Bb7 Ka3 Ndc4+ Kb3 Nd2+
1k1Rb1Q1/R3r1n1/Bnbn2P1/K6b/1NNB2R1/2BB2Rq/4pRrR/b2b4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 h5 f4 e5 b4 d5 g4 Kd7 c4 Kc7 b6+ Kb7 b5 a5 f6 e4 f5 a4 c5 d3 Kc3 d4+ Kb4 d2 g6 d3 g5 e3 g7 h4 f7 h3 f6 h2 Nc3 a3 Bb2 a2 Qb3 d1B Nf3 d2 Bd3 e2 Ne5 Rh6 Nc4 Nd7 Nd5 Qe8 Bc3 Ne7 g8R Rb8 Ka5 Nf5 Nb4 Bg7 f8B Nd6 f7 Re6 c6+ Ka8 c7 Re7 Rg1 h1B Rg3 Bc6 b7+ Ka7 Rh8 Nb6 Rh2 Bg4 c8B Qd7 g6 Bh5 Bd4 Qh3 Rg4 Ra8 b8R Bc2 Rg3 d1B Ba6 Be8 Rc8 Be5 Rc7+ Kb8 Ra7 Bf6 Rb1 a1N Bg7 Be5 Qa2 Ba4 f8R Nc2 Rff2 Ne3 Rg4 Bf6 Rb3 Nef5 Bh8 Ng7 Bc3 Nbc8 b6 Bac6 b7 Nb6 Bd4 Re3 Rc3 Rg3 Ra3 Rg2 Qb3 Kc7 Bc3 Rd8 Qa2 Rd7 b8R+ Bb7 Rd8 Re7 Bd2 Ba1 Bc3 Ngf5 Bhd4 Ng7 Rd7+ Kb8 Rd8+ Nbc8 Nb6 Ba8 Qg8 Bac6 Nc4 Bf3 Bf5 Bb2 Be1 Bfc6 Rag3 Bc3 Bd3 Ba1 Rdd7 Nb6 Bd2 Bc2 B2c3 Bd1 Rd8+
2R1RbN1/r4PB1/pRn1Q2K/1Nn5/1k1n2N1/1BrqNb2/1b2R1R1/2Rn3n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 Kh5 e5 f4 h6 d4+ Kb4 g4 c5 f6 a6 f7 h3 f5 h2 b6 e4 d6 c4 d5 e3 b7 c3 d7 e2 d6 e1B f6 c2 g5 Bh4 g6 Qc7 d8R Be7 f8R Bd7 g7 Bb5 f7 Bd7 Na3 Bc8 d7 Be1 Rfe8 Bg3 Qg4+ Kc5 b4+ Kc6 b5+ Kc5 b6 Bf8 Nh3 Ne7 g8N Nec6 Nc4 Kb4 Re2 Qd6 Nf2 Be5 Rg1 h1N Bb2 c1N Rg2 Nb3 Rc1 Nc5 Re8 Ra7 d8R Nd4 Ne3 Nc6 b8N Bb7 Qe6 Bf6 Nfg4 Nf2 Ba1 Nd1 Rc8 Ba8 Kg6 h5 b7 h4 Bb2 Rh7 Ba1 Rg7+ Kh6 h3 Bb2 h2 Ba1 h1N Bb2 Ne5 Nc6+ Kb5 b8R+ Bb7 Na5 Nec6 Nac4 Kb4 Na3 Qd5 Ba1 Qc4 Nb5 Qd3 Rh2 Ba8 Rb6 Be5 Bg2 Bb7 Bd5 Rh7+ Kg5 Rh3 Bb3 Nc2 Ne7 Qd5 Nf2 Nb8 Nf1 Qd7 Bb2 Bd5 Kg6 Nc6 Ng8 Rd3 Bd4 Bf3 Rg2 Beg7 Ng4 Qd5 Bg1 Bb2 Bd4 Rc3 Bg7 Qd3+ Kh6 N2d4 Nfe3
1B4N1/1RB2B2/1B2bRBr/4R1q1/2k1KQ2/P1qnBpr1/bn5R/r1N1b1b1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kf3 b5 e4 c5 h4 g5 d4 f5 e6 Kd6 a3 c4 e5+ Ke7 h6 c3 h7 c2 h5 f4 h6 b3 d6+ Ke8 e7 Kd7 e8B+ Ke6 d7 Kd5 e6 b4 e7 b2 Qd2 b3 Nc3+ Kc6 d5+ Kc5 d6 b1R Bc4 g4+ Ke4 b2 Rh2 g3 Nd5 g2 Ne2 g1B Nf6 f3 Bh5 Na6 e8R Qa5 d8B Nb4 d7 Nd3 Bcf7 Ne7 Ra2 Rg8 h8B Nf5 h7 Rg3 Ng8 Ra1 Be5 b1B h8R Ne3 Bb8 Nd1 Rh6 Ra6 Rb2 Ba2 Rb7 N1b2 Bdc7 Rd6 Rhe6 Kc4 Qe3 Rb6 Qf4 Qg5 Be3 c1Q R8e7 Qc2 Nc1 Qd2 Re8 Bb4 Re5+ Re6 Bcb6 Qc2 d8B Be1 Bdc7 Qb3 Rd8 Qc3 Rd6 Bd7 Be8 Rh6 Rf6 Bg4 Bef7+ Be6 Bhg6
bKQR1rq1/2n1qk1n/7q/1NR2R1B/rr1P3p/2B1N1N1/2N4R/b3RR1q b - - 0 1 illegal: No possible last move
1Qr1rB2/BKBN1k2/1R3B2/Bnrp1B1q/rRn1bb2/R1nP4/8/NqR5 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 f5 exf5 Nf6 axb5 Ng8 g4 hxg4 Ke2 d5 Ke3 a5 Kd4 g5 h4 e6 c4 g3 f4 g2 f6 a4 h5 a3 h6 g4 d3 g3 f7+ Ke7 b6 a2 b7 Qd7 c6 e5+ Kc5 e4 Kb6 e3 h7 e2 c5 e1N f5 Qe6 f6+ Kd8 Nd2 Qd6 Nb3 Bd7 Bf4 Nf3 Qb1 Na6 b8B Ne1 Kb7 Be7 f8B Ke8 c7 Qe5 c8R+ Kf7 c6 Bd6 c7 Bf5 Rh4 Nc2 Ba7 Na3 Rb8 Be4 c8R Nc7 Nf3 g1R Bh3 g2 Bf5 Ncb5 Rc1 Nc4 Bd2 Qh2 Ba5 Bf4 Bd6 Rf1 Rh6 g1Q Bdc7 Qh5 Qb2 Rf2 Rg6 Rc2 Qe5 Nh6 Qd6 Rf8 h8B Ng4 Qb6 Re8 Ne5+ Kf8 f7 Nge3 Rh6 Nd1 Nd7+ Ke7 f8B+ Kf7 Qd6 Ndc3 Qb4 Qf1 Rb6 Qg1 Bf6 Rc8 Rab1 a1R Ra6 Raa2 Na1 Ra4 Qd6 Qgd1 Rb4 Qe1 Kc6 Re8 Rbb6 Rac8 Kb7 Rca2 Rc2 Qb1 Rc1 Rc2 Bcd8 Rg2 Qb8 Rc5 Bc7 Rg8 Bfd6 Rc8 Bde7 Rgd8 Bf8 Re8 Rc6 Ne2 B5b6 Ra3 Raa4 Ra2 Ba5 Nec3 Rb6 Ra3 Rb3 Ra2 Rab4 Ra4 Ra3
3R1BR1/nb5k/nKn1B3/B1pR4/3B1r1b/Q1qRR1rn/Rb2PN2/2q4N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 b4 g5 d4 f5 h4 Kf7 b6 Kg7 h6+ Kh7 b7 c6 b5 a4 h5 g4 b6 a3 d6 f3 Ke3 a2 d5 f4+ Kd4 g3 Kc5 f2 Bd2 g2 Rh3 f3 Nc3 Be6 Qb3 Bd7 Qa3 Qg5 Ne4 Bc8 Ba5 Bg7 d7 Qd8 d6 Bf6 Ng3 Qe8 d8R Ne7 d7 Rg8 Nh1 Rg3 Rd1 a1B Rd5 Qh8 Rg8 Bfc3 d8R Bcb2 Rd3 Bf6 R8d5 Bh4 Re3 Bb2 Rgd8 Rg6 Rg3 Qg7 Nh3 g1N Bg2 f1Q N3f2 Rg4 Bh3 Rf4 Be6 Qf6 Rgg8 Nh3 Rdd3 Ra6 R8d5 Qe1 Rg1 Qd2 Ra1 Ra7 Ra2 Qc1+ Kd6 Na6 b8R c5 b7 Qd4 Ra8 Qg7 b8R Bb7 Rg8 Qgc3 Rad8 Nc6 Kd7 Ra8 Kd6 Na7 Kd7 Nb8+ Kc7 Nbc6 Kb6 Rc8 Rde8 Rc7 Rb8 Rg7 Rgd8 Rg8 Rbc8 Kh8 h7 Kg7 h8B+ Kh7 h6 Rg3 Ng4 f2 Bg7 f1N Bf8 Ne7 Ngf2 Nec6 Rf3 Ne3 Rb8 Nf5 Rfe3 Nd6 Ra8 Ndb5 Rac8 Kg6 h7 Nc7 h8B Kh7 Bd4 Na6 Rc7+ Kg6 Rg7+ Kh6 Rgg5+ Kh7 Rg8
1rq4B/1b1N1nq1/qk2BPRB/b1n3BB/2r5/Nn3Q2/1p2R2N/1qN1BK2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 h4 g5 d4 c5 a4 Kc7 f6 b5 f5 e5 f7 c4 h6 g4 h7 c3 h5 e4 d6+ Kb6 d5 b3 d7 b4 d6 c2 a5+ Kc6 h6 b2 a6 b3 a7 e3 Qf3+ Kc5 Be2 g3 Ra2 g2 Na3 Qc7 d8N b1N d7 Qc6 Ne6+ Kb6 d8B+ Qc7 Nf4 Na6 Nd3 Rb8 a8B Nc5 Bg5 Qd6 Bd5 Nd2 Be6 Bb7 f6 Be7 f8N Bd8 Bb2 Rc8 Bc3 c1Q+ Bd1 Qb1 Nc1 e2 Rh4 Qdd3 Rg4 Qa6 Rc2 b2 Nd7+ Ka7 Kf2 Ndb3 Be1 Ba5 Rd2 Ne7 Rc2 Ng6 Rd2 Rhf8 h8B Ne5 h7 Nf7 Bg7 Rc7 h8B Rb8 B7h6 Qf5 Be3 Rcc8 Rg6 Qh3 Ne5 Kb6 Beg5 Rc6 Qd3 Qg4 Ngf3 Qgc4 Nh2 g1Q+ Kf3 Qgg4+ Kf2 Qc2 Qf3 Qb1 Bc4 Qc8 Be6 Rc7 Rg7 Qh7 Rg6 Qg7 Rc2 Na4 Kg2 Rc4 Rd2 Nac5 Nd7+ Ka7 Bf2 e1Q Re2 Qd2 Be1 Qc2 Kf1 Qb1 Bc2 Rg4 Bcf5 Rb4 Bg4 Rc4 Ne5 Kb6 Bh5 Bd2 Qh3 Bc3 Qf3 Ba5 Nd7+
4KNN1/4b3/1rPN1R1r/p1k2q2/1r1B1n1Q/1B2n1N1/4Bbq1/RbBr1N1N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 h5 Kd3 e5 Ke4 Ke7 Kd5 a5 f4 d3 g4 h4 b4 e4 c4 d2 f6+ Ke8 f7+ Ke7 b6 h3 f5 d6 f6+ Kd7 b5 e3 b7 e2 g6 e1B c5 h2 g5 Rh6 b6 Nc6 b8B Bg7 f8N+ Ke8 f7+ Ke7 b7 Qc7 Qa4 d1Q+ Nd2 Bh4 Ba7 Rh7 b8N Nd8 c6 Bf2 Ne2 Rh6 Na6 Ne6 Nh7 Bf6 f8N Qc2 g7 Rb8 g6 Rb6 Qh4 Qd7 Ng5 Rb4 Rg1 h1R Nf7 Rh3 Bd4 Rhb3 Ng3 Qa2 Nc5 Nf4+ Ke4 Bg5 Be2 d5+ Ke5 Nf6 g8B Qh3 g7 Bf5 Ba3 Bb1 Nd3 Ng4+ Kf5 Qg2 Nd6 Qc2 Rf1 Ne3+ Ke5 Rb6 Bc1 R3b4 Be6 Bg1 Rf3 Bf2 Ndf1 Qc5 Nh1 Qc2 Nc5 Qh7 Nce4 Qg6 Bc5 d4 Neg3 d3 Bb3 d2 Bd4 d1R g8N+ Kd8 Bbc4 Kc7 Ba2 Be7 Bb3 Nh3 Rf6 Qh7 Ke6 Qf5+ Kf7 Nf4 Qh3 Rb7 Bdb2 Kb6 Ke8 Kc5 Qh4 R7b6 Bd4+
2nr1qBk/1BqN3P/2R1b1p1/2b2r1R/3r3r/R3N1B1/RB1QRRn1/1K5b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 c5 h4 a5 d4 f5 Kd2 Kf7 Kc2 g6 b4 Kg7 b6 c4 b5 c3 e5 a4 b7 a3 d6 a2 e6 f3 e7 f2 e8B f4 h6+ Kh7 b6 f3 d7 Na6 b8R Bc5 h5 Bd6 b7 Bc7 d5 Bb6 d6 Bc5 Nd2 Ba7 Bc4 f1Q Rh2 f2 Ngf3 Qg2 Nf1 Nf6 Qd2 Qh3 Bb2 Ng4 Ne3 f1B Rf2 Nc7 Ne5 Nb5 Kc1 Rf8 Bg8+ Kh8 h7 Qc7 d8R c2 Bc6 Qf3 d7 Bc5 Re8 Rf5 d8R Na7 Rd3 Be6 Rbc8 Bg2 b8B Bh1 Bb7 Qf4 Rb3 Qh6 Ra3 Qf8 Nf1 Ne3 Nd7+ Qg7 Re7 Ng2 Ne3 Qf6 Rf8 Qg7 Rf6 Nc8 Re8 Qf8 Re7 Qc6 Bg3 Qc7 Re8 Ra4 Re7 Rd4 Re8 Bb3 Rc6 Bc4 Ng4 Bd5 Ree2 Be6 Ne3 Kg7 Rb1 a1R h8R Ra2 Rc3 Rh4 Ra1 Raa4 Rca3+ Rad4 R1a2 Bf7 Ba1 Be6 Kb2 c1R Rh6 Rc2+ Kb1 Rc3 Bb2 Rcc4 Ne5 Rd8 Rh7+ Kf6 h6 Rcd4 Nd7+ Kg5 Rf7 Kh5 h7 Kh6 Rf6 Kg7 Rf7+ Kh8 Rf6 Rf3 Rf5 Rff4 Rg5 Rf5 Rh5
1rRb2Rk/1p1bN3/BQBN1r2/2r2B1P/qB2B2K/n1b2R2/3nb3/2R1r1B1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 d5 Kg3 f5 e4 Kf7 a4 g5 c4 Kg7 h4 g4 e6 b3 e7 d4 e8B d3 a5 b2 e5 d2 c6 Bd6 c7 Nh6 c5 Qd7 a6 Qc6 a7 Nf7 h6+ Kh7 h5 f4+ Kh4 g3 e6 g2 e7 f3 Nh3 g1B Nc3 b1B Nd5 f2 Ng5+ Kg8 h7+ Kg7 Ba6 f1R Rh3 Qa4+ Ne4 Be6 c8R Bd3 c6 Bc7 Ba3 Nd7 Rf3 Nde5 Qb3 d1R Rc1 Rb8 a8R Ng5 Qb6 Bd7 Bb4 Bd4 Bg6 Bc3 e8B Be2 Nd6 Rde1 Ne7 Nc4 Be4 Bd8 c7 Rg8 Rf5 Rf8 Rf3 Rf5 h8B+ Kh7 Bg7 Na3 Bd4 Rf2 Be3 Kh8 Bec5 Rff1 Be3 Rc5 Bg1 Be6 B8c6 Bd7 Re3 Rf8 Rf3 Rf6 Bc2 Ne4 Bcd3 Nd2 Bde4 Nac4 Ra7 Ra8 Rb8 Na3 c8B Be8 Bcf5 Bd7 Ng8 Be7 Re8 Rc8 Ra8 Rc7 Rad8 Rc8 Rf8 Rb8 Rc8 Bd8 Ne7+ Kg7 Rf7+ Kh8 Rg7 Qd1 Rg4 Qa4 Rg8#
2k2bQ1/pN1nqb2/2r2nN1/1NB5/b3RR2/RBbP1r2/r1R1rN2/N4N1K b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 c5 f4 h5 Kf2 e5 Kg2 c4 b6 c3 b5 c2 f6 e4 f7 e3 d6 e2 g5 e1B f5 Qe7 b7 Qe5 g6 Na6 b8N+ Kd8 f6 Qe8 g7 Qe6 d7 Nc7 b6 Qa2 b7 Bd6 f8N Na6 f7 Nc7 Na6 Ne7 g8R Ned5 b8N Nb6 Nc5 Qe6 Nba6 Ne8 Rg4 Qe7 Nb3 Nf6 Ng6 Rf8 Rh2 h3+ Kh1 h4 Ba3 c1R Re4 Rc6 Bc5 Bb7 d3 Bc3 Rc2 h2 Nc7 Ba6 Bh3 Bb5 Qf1 Ba4 Nb5 Re8 f8R Rac8 Kg2 h1R Be6 Rh3 N1d2 Rf3 Ra3 h3+ Kh1 h2 Nh3 Rb8 Na1 Rbc8 Kg2 h1B+ Kg1 Bg2 Nf2 Bh3 Bb3 Be6 Kh1 Bf7 Qg1 Rb8 Nd4 Kc7 d8N Kc8 Qg5 Nbd7 Nf1 Rb4 Nb7 Rbb6 Bc4 Rb2 Nb5 Ra2 Be6 Bf4 Qg4 Bh6 Bb3 Bg7 Rh8 Bf8 Rh4 Qd8 Rf4 Re2 Qe6 Qe7 Rhg4 Be8 Qg8 Bf7 Re4 Rg3 Rh4 Rf3 Rhf4
N2b1q1B/NnQ5/r1qR1qNB/n3B1kN/2R2bp1/5nP1/N2N2B1/1b1K2n1 b - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 a4 exf4 axb5 g5 Nc3 g4 Nb1 Ra6 Qa4 Rg6 Qd1 Rg5 hxg5 Bg7 Qc2 Bh6 Qd1 Bf8 d4 Ke7 e4 h5 b4 f5 d6+ Kf7 b6 Kg6 e5 c5 d7 a4 b5 a3 b7 h4 d5 h3 b6 c4 e6 h2 g3 f3 d6 c3 e7 f4 e8N c2 Bb2 c1N Ng7 a2 Qc2+ Nd3+ Kd1 f2 Nf3 Qc7 d8B Nh6 d7 Nf7 Nh5 Bh6 Nc3 Qd6 Nd2 f3 Bg2 f1N Rc1 a1B Na2 f2 Bdf6 Qf8 d8N Nc6 b8N Nd6 b7 Na5 Na6 Bf5 b8B Ne1 Qc7 Nf3 Nc6 Bb1 Na7 Ndb7 Rc4 Ng1 Bg7 Kf5 g6 Bf4 Bbf6 Rh6 Bh8 Bd4 g7 Bb6 g8N Kg6 Be5 Kg5 Ne7 Rc6 Ng6 Qf6 Qh7 Bd8 Nc7 Ra6 Na8 Qf8 Qc7 Qf6 Nb3 Nd2 Ba1 Ndf3 Nd2 Ne2 Re1 Neg1 Re6 h1Q Bd4 Qf8 Bdg7 f1Q+ Re1 Qd3 Re6 Qc3 Rd6 Qcf6 Rdd4 Ne1 Qf7 Qa3 Bd5 Be4 Be5 Bb1 Qc7 Qaf8 Bc6 Qg2 Rd7 Qd5 Rd6 Qb5 Be4 Qc6 Bg2 Nef3 Bh6+
2q2nK1/7p/6pB/2q1BbN1/1RnQ1BBn/Nkb1Br2/1r1P2R1/B3rRR1 b - - 0 1 illegal: No proof kernel
K2B1b2/5bPn/1N1qn2N/1p3R1N/1n1rB3/1Nq1Q1Nk/2N1R2p/2R2rRq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 c4 a5 c3 g6+ Kf6 a6 c2 g5+ Kg7 d6 b2 Kd5 e4 d7 e3 a7 h4 Qf3 h3 Nd2 b1Q Nb3 h2 Bg2 e2 Qe3 e1N Be4 Qa5 d8R Qba2 Re8 Nd3 Ne2 Nb2 Ng3 Nd7 Kc6 Nc5 d5 Q2a4 d6 Rb8 a8N Nb7 d7 Ba3 d8N Nc5 Nb6 Rh5 f6+ Kh8 f5 Be6 g7+ Kh7 f7 Nf6 f8N+ Kg8 Rg1 Nbd3 Ng6+ Kh7 g8N Qd4 Nf4 Bf7 Nh6 Rh4 Nfh5 Qac3 Ne6 Nb4+ Kc7 Qdd3 Ned4 Rg4 Bd2 c1Q Nc2 Ra8 Be1 Ne6+ Kb7 Qd6 Bd2 Qd1 Rc1 Qe1 Re7 Rf8 Re8 Qf1 Ka8 Qf3 Be1 Qh1 g6+ Kh8 g7+ Kh7 Bb7 Rd4 Bf2 Ng4 f6 Kg6 Qe2 Kg5 Be4 Kh4 Qe3 Kh3 Be1 Bg6 f7 Nf6 Bd2 Nh7 Be1 Rg8 f8R Rh8 Rf2 Rf8 Re2 Rf2 Rf8 Rf1 Rf5 Bf7 Bd2 Na2 Qd3 Bc5 Bg5 Nb4 Qe3 Qf4 Ng4 Bf8 Nh6 Qd6 Bd8
1B3qQ1/Pqqk3R/1bbN1RBr/5KB1/1B3B2/1N2p1p1/nR3r2/1B2nrR1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 d5 Kf3 b5 Kf4 d4 a4 g6 h4 e6 c4 d3 c6 b3 h6 b4 h7 d2 c5 b2 h5 b3 a5 Ne7 h6 Qd5 f6 Rg8 h8B Nd7 c7 Nf5 f7+ Ke7 a6 Qg2 a7 Bb7 c8B Qh3 c6 Qg2 h7 Nh4 c7 Bg7 f8R Qc6 Ne2 Qc3 Na3 b1Q Rf6 b2 Nb5 Ne5 Qb3 d1R Nd6 Bc6 Nd4 Nhf3 Bd3 Ne1 f3 Qa2 Bb1 Rf8 Qb8 Qc2 Nb3 Qa3 Ra2 Rf7 Rg1 N5d3+ Kg5 e5 f4 e4 f5 Nb4 Bf4 e3 Ba6 Rf8 c8R Kd7 Bd3 Rf7 Rg8 Bf8 Rg7 Rc1 Kg4 g5 Be4 Be7 Qg8 Raf8 Bd3 Bd8 Be4 Re7 Rgf7 Rd1 Bg7 Ba5 h8B Bb6 Bh6 Rd2 Bd3 Rf2 Rh7 Rff7 B8g7 Re6 Bf8 Qc5 Be7 Qca5 Bd8 Qe5 Bc7 Rf1 Bb8 Qc5 Bbc2 b1Q Rb2 Na2 Be4 Qab4 Bcd3 Qbc1 Bb1 Q1c4 Rg6 Qa6 f6 Qb7 Bed3 Qc2 Kf5 g4 Bg5 g3 Rgh6 Bh1 Rg6 Qcc7 Bdc2 Bc6 Be4 Rg7 f7 Rf2 f8B Rf7+ Rf6 Rf1 Be7 Rf8 Rff7 Rh6 Rf6 Qa3 Bd5 Qb4 Bf7 Rf2 Bg6 Rf7 Ne8 Qa3 Bb4 Rf1 Ba5 Qf8 Bb4 Nc3 Kg4 Rg7 Re6 Ba5 Be5 Rgf7 Nd6 Bb6 Bgd3 Qe7 Bg6 R7f2 Bef4 Na2 Kf5 Qf7+ Rf6 Qg7 Bf7 Qf8 Bg6+
1rb1k2B/5B1B/N2rB3/2rqRPb1/2n3Q1/b2n1pN1/NR1pB1rB/2N4K b - - 0 1 illegal: No proof kernel
r4R2/b1Qbp1P1/1R1BB1kN/6R1/1B5n/2KpB1B1/N1b1qrb1/2R2nrB b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 h5 f4 d5 g4 a5 b4 h4 b6 a4 f6 h3 f5 h2 c5 a3 b7 d3 b5 d4 c6 a2 g6+ Ke8 g5 Rh7 c7 Bg7 b6 Rh4 f7+ Kf8 Nc3 Re4 Bg2 Ra3 Rb1 a1R Nf3 Bh6 Nh4 Kg7 f8B+ Kh8 f6 Qe8 g7+ Kh7 f7 Qc6 Qc2 Bd7 c8B Qc4 Na2 Na6 b8B Nb4 b7 Rf4 Nf5 Kg6 Bd6 Ra8 b8B Nd5 Bca3 Ne3 Rhc1 h1B Rb6 Rf1 Be4 Bg2 Bab4 Qb5 Qc7 Rf2+ Ke1 Nf1 Bg3+ Kh5 g6 Be3 Nh6 d2+ Kd1 Qa6 Kc2 Qe2 Bd5 d3+ Kc3 d1B Bdb7 Nf6 g8R Ng4 Bg7 B1a4 f8R Ngh2 Bd4 Nf3 Bd5 Nh4 Be6 Bd1 Bb7 Bc2 Bdc5 Bh3 Bh1 Bg2 Bcd6 Bc5 Ba7 Rb1 g7 Kg5 Rf5+ Kg6 Rgf8 Ra1 Bdf4 Rb1 Be3 Ra1 Bb8 Rb1 Rd6 Ba7 Rb6 Ra1 Rg5+ Kh7 Qc6 Nh2 Rd1 Rb1 B8d6 Ra1 Rd2 Rg1 Rd1 Nf1 Qb7 Bb5 Qc7 Bd7 Rgf5 Kg6 Rc1 Nh2 Re5 Nf1 Rg5+
N2bbb1K/3Rq3/3n4/rbRQR1rB/pn6/R1RBp3/N2NPNk1/4qR2 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 h4 Ke5 d4+ Ke4 h5 a5 d6 e5 h6 c5 h7 f5 b4 g4 d7 a4 d5 c4 d6 c3 b6 c2 b5 c1Q b7 Be7 b6 Qe8 d8R Qg5 d7 Nf6 g8R Qd2 Kh4 f4 Kg5 g3 Kh6 f3+ Kg7 g2 Nh3 g1B Nf2+ Kf4 Bg2 Kg3 Ra3 Qc1 Qd5 e4 Nd2 Bh2 Rf1 Nc6 b8N e3 b7 Qb1 Na6 Ng4 b8R Bb4 Nc7 Ra5 Rb5 Nh6 Rc5 Ba6 Na8 Bb5 Bh3 Qee4 Bf5 Qe1 Rge8 Kg2 Re5 Nf7 Bg4 Bf4 Bh5 Nd6 Rcc3 Re8 h8R Bg5 Kh7 Qh4 g7 Rg8 Rc8 Bc5 d8N Nb4 Nc6 Bd8 Rc7 Qe7 Rd7 Rf8 Rg8 Rf5 Kh8 Rg5 Rf8 Qb1 g8B Qe1 Nfe4 f2 Bh7 Rg7 Rff5 Rg5 Rh1 f1B Nf2+ Kg3 Rg1+ Bg2 Rf1 Bf3 B7g6 Kg2 Bh7 Na6 Nb4 Be4 Qd4 Bec6 Na2 Nb4 Qd5+ Kg3 Rc7 Be8 Rf7 Kh2 Bd3 Kg3 Rd7 Kh2 Rf3 Kg2 Rff5+ Ne4 Qd4 Qe6 Red5 Bf8 Rdc5 Nd6 Rfe5 Qe7 Qd5+
B2kbBBQ/2N4K/R2b3n/3rRp1B/1q4B1/4P1r1/1p1N1rBq/R1R1nr2 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 b5 Ke3 h5 Kf4 c5 a4 b3 d4 f6 g4 c4 e3 b2 d6 b4 d5 c3 g6 c2 g7 h4 g5 h3 a5 h2 d7+ Ke7 Kf5 b3 Kg6 Ra6 e6 Rh5 Qd4 Ra7 a6 Rh7 Nh3 Nh6 g8B Bb7 Nd2 b1Q Bg2 Nf5 Nf4 Rh3 Ba3+ Nd6 Rc1 Qc7 d8R Nd7 Ra8 Rg3 Kh7 Bc6 g6 Nc5 g7 Nf5 Qc3 Qb8 d6+ Kd8 d7 Bd6 Nd5 Nh6 Nc7 h1R Qd4 Rb7 a7 Rh2 Bf7 b2 g8B f5 Bh5 Rb5 Bg4 Nd3 Qh8 Rd5 Bc5 Ne1 Bb4 Ke7 d8R Be8 Ba3 Qb7 Rdb8 Qb4 Rb5 Rh1 Ra5 Rf1 Ra6 Rf4 Rc8 Rf2 a8B Rb5 Rb8 Rd5 Rb5 Kd8 e7+ Kc8 Rd1 c1R Rc5 Qd3 Rca5 Rb1 Rc1 Qf1 Rac5 Qh1 Rb5 Qh2 Rba5 Bd7 e8B Kd8 Beh5 Be8 Ra4 Qb7 Re4 Qb3 Bc5 Qb4 Re5 Nd3 Rc3 Rbf1 Rcc1 Ne1 Nb5 Bc7 Bf8 Bd6 Nc7
1k1N2K1/2B2BRR/3nNr1N/bB2PN2/n3b1N1/r3qpp1/1BQb1b2/2qN4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Ke3 f5 Kd4 a5 h4 g5 e4 c6 b4 Kc7 h5 a4 d6+ Kb7 b6 a3 d7 g3 h6 g2 b5 g4 e6 c5+ Kd5 g3 d4 f4 h7 c4 e7 a2 Ke6 f3 Kf7 c3 e8B c2 d5 Ra5 e5 Ba3 d6 Ra8 Nh3 g1B Nc3 Ra5 Bb2 c1B Nf2 Bf4 Ng4 Bh6 Qc2 Bg5 Nd1 Ka8 b7+ Ka7 Rh6 Qb6 d8N Nf6 d7 Bd4 Ne6 Nc6 b8N Ne4 d8N Nb4 Nbc6+ Ka8 Rb1 a1Q Ne7 Na6 Nf5 Bd2 Rc1 Qc5 b6 Bf2 b7+ Kb8 Bfb5 Qe3 Rh3 Rg8 h8N Nac5 Rh7 Rg6 Rg7 Bab4 Kg8 Ra3 Nhf7 Qb1 N7h6 Ba5 Bf7 Rf6 Rh7 Na4 Rg7 Ka7 b8B+ Ka8 Bc7 Nd6 Bb6 Kb8 Qe4 Qa1 Rc7 Bb7 Qc2 Be4 Rh7 Ne8 Bh5 Qb1 Rcg7 Qc1 Bf7 Nd6 Bc7+
KN1n1B2/1N1qBr1k/4rp2/3q2B1/2R2RRn/2bb2bB/2p1P1b1/3RQR1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 c5 Ke4 g5 h4 g4 b4 g3 d4 g2 h6 a4 h7 f6 b6 Kf7 h5 Kg7 b5 c4 h6+ Kg6 d6 c3 Kd5 a3 d7 f3 b7 a2 b6 c2 Bg5 f2 Nf3 g1Q Bh3 f1B Nc3 Bb4 Nb5 Bc5 Nd6 Bb4 Ne5+ Kh5 Nc6 Kg6 Qe1 Qe7 d8R Nd7 b8B Qee3 Nb7 Qf4 Bd6 Qfh2 Nb8 Nc5 Kc6 Qhg2+ d5 Bf5 Bf8 Ra7 Rb1 Qg4 d6 a1B d7 Be5 Rc8 Qc4 d8R Bg3 Rdd1 Bc3 Rb4 Qg4 Rf4 Bg2+ Kc7 Qd4 Rf1 Ne4 Kc6 Ne7+ Kc7 Rg8 h8R Nd6 h7 Nc6 Be7 Rg7 Rhg8 Nd8 h8R Bd3 Rh4 Qe5 Rgh8 Qgf5 Rhg4 Rf7 Nd7 Ra6 Bf8 Qd5 Kb8 Qde5 Rcc4 Qfe4 Nbc5 Qe8 b7 Bh1 Bg2 Rc6 Ka8 Nf5 b8B Re6+ Nb7 Qd5 Bbd6 Qe7 Nb8 Qd7 Rh3 Nh4 Bde7 Kh7 Rh2 Qe8 Bh3 Bg2 Rhh1 Qeb5 R4f3 Qbd7 Rff4
1R1k2N1/3RNn2/pR1q4/P1rR2R1/1bbr4/RQ1Bq1NK/r4pr1/B3nN2 b - - 0 1 illegal: No possible last move
1R2K3/rpqB2B1/k1qN1Q1p/5BB1/rR5P/1R1BN3/1B2b1n1/br2Rrq1 b - - 0 1 legal: proof: f4 a5 g4 f5 c4 d5 cxd5 e5 b3 Nc6 b4 axb4 fxe5 f4 Ba3 Nce7 Bc1 Nf5 gxf5 Ra5 Na3 Ra6 Nb1 Ra8 Kf2 Kd7 Kf3 c5 Kg4 Kc7 Kh5 Kb6 a4 g5 h4 b3 e4 h6 Kg6 f3 Kf7 f2 d4 b2 e6 c4 a5+ Kb5 e5 g4 d6 g3 d7 g2 e7 Qc7 d8B Qc5 e8B+ Bd7 d5 Qb6 a6 Bg7 f6 Ne7 e6 Nf5 d6 Qd4 a7 Rg8 e7 Qc5 Bd3 f1Q Rh3 Bf8 Nc3+ Kc6 Nge2 b1R Nf4 g1Q Ng2 Qce3 Qf3+ Qe4 Ne3 Rg5 Bb2 Kc5 Nb5 Bc6 d7 c3 Nd6 c2 Ra4 c1R Rb4 Bb5 Qf2 Rc8 a8R Bg7 Rb8 Rg4 Rh1 Qh2 Rg1 Qd1 Re1 Qc6 Rb3 Bh8 Kf8 Ra4 Bg6 Qg4 e8B Qgg1 f7 Be5 Bg5 Kb6 d8R Ka6 Bd7 Bf6 Bf1 Be2 Ke8 Bc3 f8B Qf4 Nec4 Ne3 Bf5 Ng2 Ne3 Qfc4 Bg7 Q4c5 Ba3 Ba1 Bab2 Qa5 Qf4 Qab6 Qd4 Qbc7 Qf6 Rd1 Kf7 Rdc1 Re8 Rd8 Re4 Re8 Reb4 Re4 Rf8 Re8 Rh8 Ra8 Rb8 Ra7 Ke8 Bb5 B1d3 Rd1 Re2 Rf1 Re1 Bc4 Bde4 Be2 Bd3+
r1N4R/2K2b2/1rRB2BQ/1pq3RN/N3RnpR/b4kN1/r1bR1bP1/4r3 b - - 0 1 illegal: Other
N2r1Nnr/2pB2qB/2NR1nr1/5n2/b6p/B1P1n3/kr2NNN1/1R1B2KQ b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 Be7 h4 fxg4 Ra6 g3 Ra5 g4 Ra1 Bg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 f4 Kf7 b4 Ke6 e4 h5 f5+ Kf7 g6+ Ke7 g7 a5 c3 d5 f6+ Ke6 f7 d4 f8N+ Ke7 e6 Kd6 e7 g2 Kf2 d3 e8N+ Ke5 b6 d2 b5 h4 b7 a4 b6 a3 Be2 a2 Nf6 Ne7 g8B Ra6 Ba3 Nd7 b8N Ra8 Bh7 Ng8 b7 Qe7 Nh5 Qg7 Nf4 Ndf6 Qf1 d1R Nd2 Bd7 Rb1 a1N Rh3 Re1 Rd3 Nc2 Rd6 Ba4 Bd1 Ne3 Nge2 g1N Ng2 Nf3 Qg1 Nd4 Qh1 Nf1 Kg1 g3 Na6 Nf5 Nb4 Re8 b8N Rd8 Nd5 N1e3+ Nf1 Rc8 Nb6 Re8 Na8 Rd8 Nef4 Re2 Nh3 Rb2 Nf2 Bb3 Nf4 g2 Ng3 Ba4 Nge2 Rb5 Rb6 Rb4 Nc6+ Kd6 e5+ Kc5 e6 Kc4 e7 Rb2 Kh2 g1R e8B Rg6 Bd7 Nc2 Ra6 Kb3 Ng2 Ka2 Kg1 Nce3 Ra5 Rg5 Rd5 Rg6 Rd6
2NbNR2/2R4n/1BbR1br1/KR3R1k/1Q3B2/1pPR1nB1/pp4nq/2r4B b - - 0 1 illegal: No proof kernel
1br1N1Qb/N5rn/5R2/B4BBK/2pn1N1N/1pb2B1q/2P1rkNp/R6N b - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h3 d5 exd5 f5 Bd3 Bd7 Bc4 Bb5 Bf1 Be2 gxf5 g4 Rh2 g3 Rh1 Bg4 hxg4 Ra3 Bb2 Ra6 Bc1 Ra8 Ke2 Kf7 Kf3 Kf6 d4 e5 a4 b5 g5+ Kg7 Kg4 c5 f4 e4 f6+ Kg6 f7 h6 d6 e3 f5+ Kh7 f6 Kg6 a5 g2 a6 e2 a7 e1B d7 b3 d5 b4 d6 c4 Ne2 g1B Bh3 b2 Ng3 b3 Na3 b1R Nb5 Be3 Rf1 Bb6 Qd5 Qe8 d8N Qe3 d7 Qf2 Ne6 Bd6 d8B Bbc5 Ba5 h5+ Kh4 Rh7 f8N+ Kf7 Bf5 Qf3 Rf2 Nc6 Ng6 Bc3 Ngf4 Bb8 Ng2 Rg7 Bf4 Re1 g6+ Ke8 f7+ Ke7 f8N Kf6 Bc1 B5d4 Nef4 Re2 Qd8+ Ke5 Qe8+ Re7 g7 Nf6 g8N Nh7 Nf6 Qd3 Qc8 Rg7 Ne8 Qf3 N4e6 Kd5 Ng6 Bf6+ Bg5 Nd4 Qc7 Be5 Qf7 Bf6 Qg8 Qe3 Kh3 h4 Kg4 h3 Kh5 h2 Nef4+ Kc5 N6h4 Qe6 Be4 Qh3 Bd3 Rge7 Rf3 Bh8 Bf5 Rg7 Rff1 Be5 Rf2 Rc8 a8B Bb8 Rff1 Ne6 Na7 Kd4 Ne1 Ke3 Bf3 Nd4 Neg2+ Kd2 Rfe1 Rf2 Re6 Re2 Ra4 Kd1 Rf6 Kd2 Ra3 Kd1 Ra1+ Kd2 Ne1 Ke3 Neg2+ Kf2 Nh1#
2B4n/K7/RBPQ1nNb/pB1R4/B1k1nrp1/2Bp2N1/1R5q/1B1rRbb1 b - - 0 1 illegal: No possible last move
3BR3/BrN1p1qN/1b1pr2B/3np3/K2BBNbQ/3b4/1k1P3n/R1r1BN2 b - - 0 1 legal: proof: h4 b5 a4 g5 hxg5 c6 b4 f6 c4 Bg7 cxb5 Bf8 b6 Bh6 b7 Bg7 e4 Bf8 e5 fxe5 a5 Kf7 b5 Qb6 axb6 Ke8 g4 Kf7 f4 Ke6 f5+ Kd5 g6 Kd4 f6 a5 f7 h5 g5 c5 g7 h4 g6 a4 Bg2 h3 Nf3+ Kc4 Bb2 a3 Nc3 d6 Nh2 a2 Nf1 h2 Ne2 Ra3 Bd4 Kd3 Qa4 c4 Kd1 Nd7 b8B c3 b7 Rb3 b6 Nh6 g8N Rh7 g7 Nf6 Ba7 Bg4 b8B Bf3 b7 Be4 Bc7 Rb5 b8B Nhg4 Bd8 Nd5 Nf6 Rb7 g8N Bh6 f8B Be3 Ne8 Rh6 Nc7 Re6 Nf6 c2+ Kc1 Bg6 Nh7 Bh5 Rg1 h1B Bh6 Nh2 Bac5 Bg4 Bba7 Bf2 Bcb6 Be3 Kb2 c1R Ka3 Bf2 Qb4 Kc2 Ka4 Be3 Nf4 Bf2 Bh3 Be4 Bg2 Bd3 Be4 Be3 Qb5 Bf2 Qe8 Be3 Qh5 Bf2 Rg2 Bg1 Bf2 Kb2 Be1 Bc5 Ba5 Bb6 Qh4 Bh5 Rg8 Bg4 Re8 Rc5 Rd1 Rc1 Bb4 a1Q+ Ba3+ Ka2 Bc5 Qc3 Bcf2 Kb2 Be3 Qc5 Bg1 Qe3 Bgf2 Qg3 Bc5 Bf5 Bg1 Qg7 Bc5 Bg4 Bcf2 Rc5 Ra1 Rc1 Bd4+
RBn1q1k1/4b1NR/1N1p2NR/N2pN1N1/r2np1q1/1b1rP3/5QB1/2nR2K1 b - - 0 1 legal: proof: f4 b5 a4 g5 axb5 h5 fxg5 h4 d4 c6 d5 cxd5 g3 Ba6 gxh4 Bb7 h5 Bc8 Kf2 a5 b4 e5 c4 f5 h4 Kf7 h6 f4 h7 e4 h5 f3 c5 a4 c6 a3 b6 a2 c7 Ra4 h6 Bg7 b5 Ra5 g6+ Kf8 b7 Na6 b8R Nf6 b6 Rg8 h8N Nh7 b7 Qf6 Na3 Rb5 Qc2 Qd8 Ra8 Nf6 b8N Ne8 h7 Ra5 Nc6 Nd6 Bf4 Nb4 Bg2 Qe8 Rh6 Ra4 Nh3 Nd3+ Kg1 Bf6 Ng5 Ba6 c8N Bc4 Nb6 Bb3 Nac4 Nc1 N6e5 Nc8 Na5 Be7 Rb1 a1N e3 Ra3 Qd2 Nc2 Qf2 Nd4 Bh2 Nd3 Rd1 Nc1 Nd3 Kg7 Bb8 d6 Ne5 Rf8 Nhf7 Ra4 h8N Kg8 Nd8 Rf4 g7 Rh4 Qc2 Rh2 Nhg6 Rh1+ Kf2 Re1 Nde6 Re2+ Kg1 Rd2 Rh7 Rd3 Qf2 Bc4 Qe1 Ba2 Rh2 Bb3 Nh3 Kh7 g8R Ra3 Rf8 Ra4 Rf7+ Kg8 Rh7 Bf8 Nhg5 Be7 Ng7 f2+ Kf1 Qf8 R2h6 Qf7 Bf3 Qe8 Kg2 f1Q+ Kh2 Qh3+ Kg1 Qhd7 Bg2 Qg4 Qf2
N4K1n/1Nb1Rp2/p1q2R1n/nNprk3/RN6/1BNR4/bq1B1P2/QrN5 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 g5 a4 d5 cxd5 Na6 axb5 Nb8 h4 gxh4 Kd2 Kd7 Kc3 c5 Kc4 h5 g4 h3 b4 h4 e4 h2 g5 h3 e6+ Kd6 e5+ Kc7 b6+ Kb7 g6 a6 d6 Kc6 g7 Qe7 b5+ Kb7 Kd5 Rh7 d7 Rh5 Ra4 Qf6 e7 Qh4 Kd6 Rh8 e6 Nf6 g8R Qe4 Rg6 Qe1 Bc4 Qe2 Bb3 Ng4 Bd2 Bg7 e8N Bh6 Ke7 Bg7 Nc7 Rh7 Nc3 Nh6 Qa1 Be5 Kf8 Nc6 e7 Rb8 e8N Na5 Na8 Bc7 Rf6 Rg7 d8R Be6 Rd3 Rg5 Rd7 Qe5 Nge2 Kc8 Rc1 h1N Rd1 h2 Nc1 Ng3 Rd3 h1Q Nd6+ Kd8 b7 Ngf5 b6 Nh4 Ndb5+ Qhd5 Nb1 Qb2 N1c3 Rc8 b8N Ng6+ Kg7 Ke7 b7 Re8 Nc6+ Kd7 Nb4 Nh8+ Rg6 Ke7 b8N Rh5 Rf6 Qc6 Ra3 Rd5 Ra4 Qb6 N8c6+ Kd7 Nb1 Rb8 Nd8 Qc6 N1c3 Rb7 Kf8 Rb6 Na7 Kd6 Nab5+ Ke5 Nb7 Rd7 Bc2 Ba2 Bb3 Rd4 Rd6 Rd5 Rd7 Kf5 Re1 Kf6 Re6+ Kf5 Red6 Ke5 Rf6 Qe6 N5d6 Ng8 Nc2 Qa3 Bc4 Rb1 Ndb5 Qc6 Bb3 Qb2 Nb4 Nh6 Re7+
B1b1kqrB/1rppPpr1/4B3/3BN1RK/n1N3nb/6R1/3N2BN/3Q2rB b - - 0 1 illegal: No proof kernel
n1B5/1B2Bk1R/rR1Bp2n/1K4b1/2n1p2N/Rb2Pp1R/2R2nNQ/bR4q1 b - - 0 1 illegal: No proof kernel
2r5/NRp1B1nK/1N2kPp1/NB2n1p1/br2n3/8/QN1p1RB1/1BqNb2N b - - 0 1 illegal: No proof kernel
2Bb1B1r/2b3R1/1R4pp/K1n1NBP1/n1B2B1N/q3p2p/4R2B/1k1bQ1Rq b - - 0 1 illegal: Other
4KBB1/3r1rRq/3qB2N/pR1p1r1B/3Npn1B/2pk1b2/2NP2QN/B6n b - - 0 1 legal: proof: b4 g5 e4 f5 a4 fxe4 c4 b5 cxb5 g4 a5 g3 hxg3 Bh6 g4 Be3 g5 Bb6 axb6 Kf8 Ra6 Kf7 Ra1 Ke8 Ke2 Kf7 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 f4 h5 Kg6 e5 Kf7 d5 g4 c5 g6 a5 g5 e3 g7 h4 b7 c4 g6 c3 f5 e4 f6 h3 b6 e2 b5 e1R Qg4 h2 Bb2 Rh7 Nf3+ Kc5 Na3 Nd7 b8B Rh3 b7 Qc7 b6 Ne5+ Ke8 Re2 f7 Ra6 f8B+ Ne7 g8B Rf2 g7 Bf5 Qg2 Rh5 Be6 Bh3 g8B Bf5 Be2 Bg4 Rhg1 h1Q Nc2 Nd3 Nh2 Kc4 Rab1 Nf5 Ba1 Ra8 Rb5 Rg5 Bd1 Bh3 Bh5 Ra6 Ba7 Bg4 b8N Ng3 b7 Nf4 Nc6 Kd3 b8N Qd6 Nd8 Rf5 Nf7 Bf3 Nh6 Rb6 Nc6 Rb7 N6d4 Rd7 Bb6 Rff7 Bd8 Rf1 N2g4 Qh2 Bh4 Nh1 Qf2 Qh3 Nh2 Qf5 Rg7 Qh7 Rb6 Rg1 Rb8 Rg5 Qg2 Rgf5 Rb5
1n2B3/B2B1Bb1/1R2B1b1/nKBk1rn1/B3N1bQ/bNB1q1bP/2Rr1q2/8 b - - 0 1 illegal: No possible last move
2b5/BPR1q3/2B2B1B/3B1b2/qbnnB1rB/1QRr4/rr1nBk2/4NN1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 Kg2 Kc5 b4+ Kd4 e4 h5 e5 c5 e6 a5 e7 f5 e8B c4 b6 c3 g6 h4 g5 c2 b5 a4 g7 a3 b7 a2 b6 Nf6 g8B Nfd7 g6 Ne5 d6 Nc4 g7 Qe7 d7 Nc6 Rh3 f3+ Kh1 f4 b8B f2 d8B f3 Bh7 Rg8 Be2 f1B b7 f2 Rc3 h3 Be4 h2 d3 Ra5 Bh6 c1R Nd2 Bfh3 Nf1 Bhf5 Qb3 Rd1 Rac1 a1Q Bd7 Ra6 Ba7+ Rb6 Be8 Qa4 R1c2 Ra1 Bd7 Ra2 Nf3+ Kc5 Ne1 Nd4 Bb8 Rb5 Bdc6 Rb4 Ba7+ Rb6 Ne3 f1N Rc1 Nd2 Nf1 Qe8 Bh4 Qe7 Kg2 h1R R1c2 Rh8 g8B Rh3 Bgd5 Rf3 Kg1 Rg8+ Kh1 Rg4 Rc1 Kd6 R1c2 Ke5 Rc1 Qg5 R1c2 Kf4 Rc1 Bb4 R1c2 Nb5 d4 Rd3 Qb2 Nba3 Bf7 Bfe6 d5 Bf5 d6 Bc5 d7 Ne5 d8B Nb5 Ra3 Nd4 Bfd5 Rbb3 Bd7 Bb4 Rc7 Nec4 Qc2 Rb1 Rc3 Rbb2 Ng3 Ke3 B7c6 Kf2 Qb3 Qg7 Bdf6 Qe7 Nf1+
NnbB4/1NK5/rrQR3r/6Nn/BN5N/q1pNqNb1/Pkqn4/3R3N b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 d4+ Kb6 f4 Ka5 h4 g5 d6 c5 h6 b3 h5 Ka4 f6 b4 d5 c4 f5 e6 d7 c3 d6 g4 f7 g3 f6 g2 h7 Ra6 h6 Ne7 Qd5 b2 Nd2 Ka3 Qc6 b3 Ndf3 Qe8 d8N Ra5+ Bb5 Ra7 d7 Ra5 Kd6 e5 Bg5 b1N Ba4 b2 Kc7 e4 Nb7 e3 d8N e2 Nh3 e1R Nf2 Bg7 f8N g1Q f7 Rf5 Nd7 Re6 f8N Qg2 Nde5 Qg3 Nd7 Qh4 Nb6 Qb4 Na8 Ng8 Rd1 Nf6 Rd6 Nh5 Nh1 Nd2 Rd1 b1Q Nd3 Qc2 Bh4 Ra5 Bf6 Rg8 h8N Ra6 Ng6 Rh8 h7 Qbb2 Be7 Be5 Ngh4 Bg3 Bg5 Rh6 Be7 Rf8 h8N Rff6 Nhf7 Rfg6 Bf6 Qe3 N7g5 Qbc1 Qc4 Q1b2 Nc6 Qbb3 Bd8 Re6 Ndf2 Kb2 Nb4 Qa3 Qc6 Re5 Rg6 Rb5+ Rd6 Rbb6 Nfd3+
NRbn3R/2B2B1K/q3rBrB/1P6/N2r2kb/2pbB3/1nnBB3/Q3Br2 b - - 0 1 illegal: No possible last move, all moves rejected
6bN/1P3B1B/r5BK/1bB4B/rB1Rn1qB/3b1Br1/k3pn1b/r1R2Q1N b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Ke2 Kf7 Ke3 Ke6 Kf4 a5 c4 h5 g4 d5 b4 a4 b6 h4 b7 a3 b5 h3 c6 d4 c5 Kd5 b6 e6 g6 a2 c7 d3 c6 Kc4 g5 e3 g7 h2 g6 e2 Nf3 e1R Be2 Na6 b8B Ne7 Kg5 e5 g8B+ Qd5 b7 e4+ Ne5+ Kb4 f4 d2 f5 e3 g7 Qa5 f6 Bf5 c8B Rh7 f7 Ra7 c7 Rh6 Ng6 Nc5 Nh8 Ng6 Bh5 e2 Bh7 Ne5 g8B Rha6 Nc3 Ng4 Ne4 Rg1 Nf2 Qa4 Qf1 Kb3 Ba3 d1B Rc1 a1R Bb4 Bd3 Bcf5 Rg3 c8B Bd6 Bfg6 Ka2 f8B+ Bb3 B8f7 Ra8 Rg1 h1B Rc4 Bc6 Rd4 Be6 Nh1 Nf2+ Kh6 Bcb5 Bf3 Bb3 Bcg4 Nce4 B4h5 Be5 Bfc5 Be6 Be8 Bg8 Bbd6 R8a7 Be1 Qc4 Bef7 Ra4 Be7 R7a6 Bh4 Qe6 Rc4 Qg4 Ba5 Rh3 Bab4 Bh2 Rc1+ Qe6 Rg5 Rg3 Rd5 Qg4 Rd4+
N1BK3b/b1nR4/3p2B1/2Rn2nQ/p1k2PN1/2Bq1b1B/2B2B1B/1rrb3B b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Ke3 Ke6 Kd4 h5 c4 a5 b4 e3 g4 h4 b6 h3 b5 e2 b7 e1N g6 h2 b6 a4 g7 Na6 b8B Qc7 g5 Bb7 g6 Bc8 b7 Nd3 c6 Ne1 c5 Qa5 c7 Nh6 g8B+ Nf7 c6 Rh6 g7 Kd6 Ba7 e6 b8B Nb4 Bb2 Nh8 Bh7 Rg6 g8B Nd5 Bf7 Qa6 Nd2 Ng2 Nh3 Ngf4 Rc1 Rg1 Bfg6 Nf7 Bg2 Ng5 Rc5 Qb5 Qe2 Rb1 Rd1 h1B Bc3 Bb7 c8B+ Nc7 f3 Nd5 Nf2 Qb3 Ng4 Bg7+ Nf6 Bh8 Nc4+ Ke7 Nb6 Kd6 Bc2 Qa3 Bhg6 e5+ Kc4 e4 Ng4 e3 Rd4 Ke6 Qd1 e2 Rd2 Na6 Bh2 e1B c7 Bf2 f4 Rb8 Rd4 Rc1 Kb5 Bg1 Bg2e4 Bf3 Na8 Bc6+ Ka5 Rbb1 Rd2 Be2 Bh1 Bf3 Qe2+ Kd6 Qe8 Bd1 Qf7 Qb3 Qh7 Qc4 Qh5 Qd3 Bb6 Ndb4 Ba7 Bcf3 Kb6 Bf2 Bb7 Ke6 c8B Nc7 Bbe4 Bg1 Kb7 Nbd5+ Bb6 Bfe2 Beg2 Bf3 Bh3 Kd6 Kb8 Bf2 Ba6 Bfd4 Kc8 Bg1 Kd8 Be3 Rb5 Kc6 Bc8 d6 Re2 Bc5 Re7 Bg1 Rd7 Bf2 Ba7 Be3 Rb6+ Kc5 Rb5+ Kc4 Bad4 Bd2 Bdg1 Be3 Bf2 Ba7 Rc5+
2b2b2/KR3B1b/1B3P1k/NpNp3n/1N1N1n2/2nR4/2Qp3B/1RB2q1R b - - 0 1 legal: proof: b4 c5 a4 f5 e4 a5 bxa5 g5 exf5 g4 d4 cxd4 a6 g3 hxg3 Kf7 g4 Ke8 g5 Qc7 Rh2 Qb6 Rh1 Qd8 a7 h5 a5 b5 a6 d6 Nd2 Nc6 Nb1 Rb8 axb8B e6 Ne2 Rh7 Ng1 Rb7 axb7 Qf6 Ra2 Qe7 Ra1 Qd8 Kd2 Kf7 Kd3 Kg7 c4 h4 g4 e5 f4 h3 g6 h2 c5 Qg5 f6+ Kh6 f5 Nge7 g7 Nd8 g8R Nd5 c6 Nc7 f7 Qf4 f6 Bd7 g5+ Kh7 g6+ Kh6 g7 Be8 Na3 Na8 c7 Kg5 c8N Ne6 Bc7 Kh6 b8B Bc6 Ne7 Be8 Qc2 Nd8 Rb1 Nb6 Nc6 Na4 Ne2 Ne6 Na5 Bc6 Bb6 Nc3 Bg2 Be8 Bd5 Bd7 Bb3 Bc8 Bd5 Be7 Rd8 Bf8 g8R Ng7 B8c7 Nh5 Rg7 Bb7 Be6 Ba6 Rd7 Bc8 Rg3 d5 Bb8 Bd6 Rb7 Bf8 Re3 Qf1 B8c7 Bb4 f8N Bc5 Nd7 Bf8 Nc5 e4+ Kd2 d3 Nd4 Qf5 Rh3 Qf1 Ke3 d2 Bd6 Kg6 Bf7+ Kh6 Rg1 h1B Bh2 Bf3 Rh1 Bd1 Qa2 Bdg4 Nac2 Bgf5 Nb4 Bh7 Qc2 Qc4 Nde6 Qf1 Kd4 e3 Rg3 e2 Rd3 e1N Na4 Bg7 Kc5 Ng2 Nd4 Ngf4 Kc6 Ng6 Nc5 Ngf4 Kc7 Bf8 Kb8 Na4 Ka8 Nc3 Ka7
nk1qr1B1/r3NrR1/5n2/PBN2pb1/7q/q1NqN3/1RB1B3/1R2QKR1 b - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 a5 cxd5 h6 b4 Qd7 bxa5 Ra7 g4 Qd8 g5 Be6 g6 Ra8 Ba3 Kd7 Bc5 f6 Be3 Bf7 Bg5 hxg5 gxf7 Qc8 Na3 Qe8 Nb1 Qd8 e4 Kc8 d4 c5 a4 b5 h4 c4 e6 c3 e7 b4 e8B f5 d6 g6 d7+ Kb7 a6+ Kc7 h5 b3 a7 g4 h6 b2 e5 g5 a5 g3 h7 g2 d5 g4 d6+ Kb7 e6 c2 e7 c1R Nf3 g1Q Ne5 g3 Ng4 g2 Nc3 b1Q Ne3 Qb2 Rb1 Qh2 Be2 Na6 Rg1 Qdb6 d8R Q2b3 d7 Nf6 Rb8+ Kc7 d8R Qa2 B8b5 Qc4 e8B Rg8 h8N Bh6 f8N Qd3 Bf7 Bg5 Nd7 Re8 Ng6 Qbd6 Kf2 Qa3 Ne7 Qh5 Qe1 Qh4+ Kf3 Rc2 Bg8 Rc1 Nc5 Rd1 Rh1 g1Q Rd4 Qgh2 Rg1 Qd6 Kg2 Qd8 Kf1 Rd2 Rdg4 Rb2 Bh7 Rb4 R4g2 Rd4 Bg8 Rd7 Nc8 Rh7 Ne7 Rf7 Rb6 Rb8 a8B Rb7 Rb2 Ra7 Bb7 Kb8 Be4+ Rb7 Rg3 Nc7 Rg4 Na8 R4g2 Bh6 Rg7 Bg5 Rb1 Q3d5 Bc2 Qd3 Rd6 Rd7 Rd4 Rc7 Rdb4 Ra7 R4b2
R2BQn1K/P6p/1RR2nBq/1N4n1/3NbNkN/B2qB1q1/8/b1r1R2q b - - 0 1 legal: proof: f4 g5 g4 b5 c4 d5 fxg5 f5 g6 f4 g7 a6 cxd5 f3 h4 Qd7 h5 Qd8 g5 a5 b4 axb4 exf3 Ba6 f4 Bc8 f5 Ra3 Bh3 Ra6 Bf1 Rg6 hxg6 Ba6 Qe2 Bb7 Qd1 Bc8 Kf2 Kd7 Kg3 c5 Kf4 e6 Ke5 c4 a4 c3 d4 b3 a5 b4 a6 c2 d6 b2 f6 b3 f7 Bb7 d5 Nf6 g8R Qc7 a7 Ba6 g7 Qb7 g6 Qb5 Bd3 Nh5 Nf3 Qb7 Be3 c1N Re1 Qc6 Nd4 Bb7 Qe2 Na2 Na3 b1Q Nab5 Nc3 Ra6 b2 Rb6 Ne4 Bc2 Be7 Rc8 Nhf6 f8B Ng5 g8N Qc1 g7 b1Q Be4 Qd3 Nh6 Qc7 g8R Qcd2 Kf4 e5+ Kf5 Qcc1 Qh5 Qh2 Rcc6 Qh1 Ng4 Ba8 Nh2 Qcd2 Nhf3 Qdh2 Qg6 Qh6 Nh4 Bd8 Be7 Bc7 Rg7 Rc8 Rg8 Bd8 Ra6 Ba5 Rab6 Bc3 Qh5 Bb7 Qe2 Ba1 Bf8 Ke8 d7+ Kf7 d8B Nbd7 Ba3 Nf8 d6 Rc7 d7 Ba8 Re6 Rc1 Red6 Qb1 Bc2 e4 Rdc6 Qb3 Rh8 Qd3 Qh5+ Kg7 Qe8 Bb7 Bb3 Ba8 Bf7 Bb7 Bg6 Ba8 Bf4 e3+ Ke5 e2 Be3 Qh3 Bde7 Qh1 d8N Qh5 Ne6+ Kh6 Nf4 Bb7 Rg1 e1Q Bd8 Qg3 Re1 Ba8 Rc3 Be4 Rc5 Qhe2 Rcc6 Qed2 Rg8 Nh3 Rh8 Kg5 Rg8 Kg4 Rh8 N8d7+ Ke6 Qdh2 Kf7 Nf8 Kg7 Ng5 Rg8 Qhd2 Kh8 Qdh2 Rg7 Qhh3 Rgb7 Qh3h2 Rb8 Qhh3 Ra8 Qh3h2 Nhg2 Qh6 Nh4
1b1n2NB/b1b3K1/NN3B1r/N6R/3BRb2/1R1n3p/2Pb2bR/1QqB2k1 b - - 0 1 legal: proof: d4 f5 e4 fxe4 f4 b5 g4 c5 dxc5 b4 f5 b3 f6 Na6 axb3 Nb8 b4 Qc7 b5 Qb6 h3 Kd8 f7 Qg6 b6 Qf5 gxf5 a5 h4 g5 Ra2 g4 Ra3 Ra7 Ra4 Rc7 Ra1 Rc6 Ke2 Rg6 Ke1 Rg5 hxg5 Bg7 Qd6 Bh6 Qd1 Bf8 Kf2 h5 Ke3 d5 Kf4 Kd7 Ke5 Kc6 b4 e3 f6 e2 g6 e1B b7 g3 g7 h4 Qf3 g2 Na3 h3 Qh5 d4 Bg5 d3 Qd1 a4 Be2 d2 Nf3 g1B Nc4 a3 Rh2 a2 Qb1 d1Q Nb6 Qc1 Bd1 Na6 b8R Bb7 Nd2 Rh6 Ndc4 Bd2 Na5+ Kb5 c6 Nc5 c7 Nd3+ Kf5 e5 c8R e4 Re8 e3 Re4 Bd6 f8B e2 f7 e1B Bf6 Bc7 Bc5 Beg3 f8B Bgf4 Bcd4 Ne7+ Ke6 Bge3 Kf7 Nc6 g8N Nd8+ Kg7 Ba8 Rb7 Bb8 Bfc5 Bfc7 Bb2 Bef4 Bcd4 Ba7 Nac4 Kc6 Na5+ Kd6 b5 Bcb8 Na4 Kd5 b6 Bfc7 Rh4 Bcf4 Rh5+ Ke4 Bbc3 Bbc7 Rb8 Bd5 b7 Bc6 Nb6 Bd5 Re2+ Kf3 Rh2+ Kg3 Bb2 Bg2 Bbc3 Nf7 Re8 Nd8 Re3+ Kf2 b8N Kg1 Na6 Bab8 Re4+ Bfe3 Qb2 Bf2 Rb1 a1B Qb4 Bb2 Qb5 Ba3 Qb2 Bad6 Qa1 Bfe3 Rb3 Ba7 Qb1 Bg3 Kf8 Bcb8 Bh8 Bgc7 Bdf6 Bg5 Kg7 Bgf4 Bcd4+
2b2Qr1/KR2NP1p/2q1q3/2rBN3/N3B2R/1RbqB3/R1b1r1r1/2k2B1N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f6 axb5 f5 Qg4 e5 Qe2 Nc6 Qd1 Nd4 Ra4 Nf6 Ra1 f4 f3 Nf5 exf5 e4 Ra4 e3 Ra1 Ne4 fxe4 Bd6 Nf3 Bb4 Ng1 Bf8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 c5 b4 a5 d4+ Kf6 g5+ Kg7 e5 e2 d6 e1R e6 a4 g6 Kf6 g7 Kg5 g8B h3 d7 h2 e7 a3 e8B a2 b6 Bh6 Kb5 c4 d5 c3 d6 c2 b7 Re5+ Bd5 Qc7 b8R Rf8 d8N Ra6 f6 Qf7 d7 Re2 Nh3+ Kg4 Nc3 f3 Nf2+ Kg3 Na4 Rh8 Rb7 Bg7 Nc6 Ra5+ Kb6 Rc5 d8N Qe6 f7 Bc3 b5 Rg8 Be3 c1Q Ka7 Qc2 b6 Qd3 Ng4 f2 Ne7 Ba5 Ndc6 Bc3 Bc4 Kf3 Nce5+ Ke4 Qc1 Rc2 Qa3 Re2 Re1 a1R Bc6+ Qdd5 Rb1 Raa2 Ra1 Rab2 Ra2 Rbc2 Rg1 h1B Rg2 Rb2 Rh2 Bf3 Rh4 Rbc2 Bh3 f1Q Qb4 Qd1 Bf1 Qd3 Qa3 Rb5 Qd6 Rc5 Qd8 Bg2 Qf8 Rb2 Bc1 Rbd2 Nf2+ Ke3 Nh1 Be4 Bb3 Qdd6 Bbd5 Bf5 Be4 Bg6 Bcd5 Qc6 Rd7 Rg2 b7 Re2 b8R Rg2 Bb2 Rde2 Rb3 Kd2 Ba1+ Kc1 Rdb7 Ba5 Bd4 Bc3 Bg1 Qc4 Bf3 Bc2 Bfe4 Qd3 Be3+
N5n1/1p1R1bBB/1P1r4/BrN2n1n/R2B4/2q2k1p/RbNQ2b1/RK2N3 b - - 0 1 legal: proof: b4 d5 a4 a5 bxa5 g5 c4 f5 cxd5 f4 h4 gxh4 e3 Bd7 exf4 Bc8 f5 Qd6 Qf3 Qc6 Qd1 Qb5 axb5 Kd7 Nc3 Kd8 Nb1 Ke8 d4 Kf7 Kd2 Kf6 Kc2 e5 f4 h5 g4 c5 g5+ Ke7 a6 Kd6 f6 e4 f7 c4 g6 e3 g7 e2 a7 e1Q f5 h3 f6 h2 Ra2 c3 Be3 h4 Ne2 h3 Qd2 Bg4 Nf4 Nh6 g8R Nd7 Na3 Re8 a8N Qa1 Nd3 Bg7 f8B+ Re7 f7 Bf6 Bg7 Be6 f8N Bf7 Ne6 Rh7 Nec5 Re5 Bg2 Re6 Be4 Nf5 Rb1 h1B Kc1 Re7 Nc2 Rh5 Rh8 Rg5 Rh4 Re6 Rg4 Bg2 Bf2 Ng3 Bh7 Nh5 Rh4 Be5 Re4 Ndf6 Rh4 Ng8 Rg4 Ke7 d6+ Ke8 d7+ Ke7 d8B+ Kd6 Be3 Kd5 Ba5 Rd6 b6 Rf5 Rb2 Qa3 Ra1 Qb4 Rba2 Bf6 Na3 c2 Re4 Qc4 Kb2 c1N Nc2 Ne2 Kb1 Qc3 Rf4 Kc4 d5+ Bd4 Rh4 Neg3 Bg1 Rg5 Rf4 Nf5 Rg4 Rc6 d6 Kd5 d7 Rd6 d8R Bf6 Rga4 Bd4 Nb3 Ke4 Rd7 Kf3 Bf2 Nfg3 Be3 Rb5 Bf2 Nf5 Bg1 Bc5 B1d4 Bb4 Nbc5 Ba3+ Rb4 Bb2 Rc4 Kg4 Rca4 Kf3 Nde1+
qRk3b1/5QrP/r2R1N2/B1B4B/2q2rn1/p1N3rp/3KN1n1/N1R1BR2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 Nh6 c4 Ng8 cxd5 Bb7 Bc4 Ba6 Bf1 Bc8 g3 gxh4 Rh3 h5 Rh2 h3 Rh1 h2 Bh3 h4 Qb3 Bg7 Bf1 h3 Qc2 Bf6 Qd1 Bh4 gxh4 Kf8 Ra6 Kf7 Ra1 Ke8 b4 Kd7 f4 e5 d4 a5 d6 c5 d5 a4 b6 c4 b7 a3 f6 e4 b5 e3 b6 e2 f5 c3 h5 c2 h6 Qc7 h7 Kd8 f7 Be6 f8N Ra5 f6 Qe7 f7 Qg5 d7 Qf6 Bd2 c1R Nc3 Bf5 Ne6+ Ke7 d8R Ra4 Nd4 Qe6 Rd6 Nf6 Nc2 Nc6 b8N Nd4 b7 Rg8 Nd7 Kd8 f8B Rg3 b8R+ Kc7 Rab1 Ng4 Nf6 Ra6 Na1 Qg8 Bg2 Ne6 Bf3 Nf4 Be7 Rc2 Rc1 Be6 Bf8 Rb2 Qb3 Rb1 Qa2 Rb4 Qb3 Nh6 Bh5 Ng4 Be3 Re4 Kd2 e1R Bc5 Ng2 Nge2 Rf4 Rf1 h1Q Bh6 Qc8 Bg5 Bg8 Bh4 Re4 Qc4 Re7 Qf4 Qe6 Qf5 Qe4 Qe6 Qc4 Qf7 Rd7 Nf4 Ree3 Nfe2 Rgf3 Bg3 Rf4 Be1 Rde7 Re6 Rg3 d6+ Kc6 d7+ Kc7 Rbb6 Kd8 Red6 Kc7 d8B+ Kc8 Qg6 Rg7 Qf7 N2e3 Rbb1 Qa8 Ba5 Ng2 Rb8+
b2kq3/1b1pNBp1/RB4Nr/R1Qb4/2PR1bpN/1b3B2/2B5/3KRr1N b - - 0 1 illegal: No proof kernel
nN2KR1B/3rR3/4Bpr1/1k1BBp2/NpRn1N2/1qN2rP1/p1b5/3Q3R b - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 d5 h4 g5 hxg5 e6 a4 d4 f5 exf5 a5 d3 cxd3 Bd7 d4 Bc8 d5 Bd6 Rh5 Bc7 Rh1 Bb6 axb6 Qf6 Qc2 Qd6 Qd1 Qd8 Kf2 Kd7 Kg3 a5 Kh4 h5 e4 a4 d4 a3 d6 Kc6 d5+ Kb7 d7 Ka6 d6 a2 c6 Ne7 g3 Ka5 e5 b4 b7 Rg8 g6 Ra6 Kg5 h4 Kf6 h3 g7 h2 e6 Qc7 d8B Ra8 d7 Ra6 Nh3 Kb6 Nc3 Ra5 Nf4 Rd5 Bc4 Rd2 Bd5 Rc2 Bb2 Kc5 Rc1 Na6 b8N Rd2 Ba1 Qa7 c7 Bb7 c8N Nc6 e7 Nc7 e8R Na8 Nb6 Qa4 Bc7 Qb3 d8R Nd4 Ke7 Rf2 Rf8 Rf3 Ke8 Ba6 Rc2 Bd3 Be5 Be4 Rc1 Bb1 Rd7 Bc2 Ne4+ Kb5 Re7 Nc6 Na4 Nd4 Rf1 h1R Nec3+ Ka5 Re1 Rh6 Rf1 Rg6 Rh1 Rh8 g8B Rh7 Bh8 f6 Bge6 Rhg7 Nce2 Kb5 Bb2 Bb1 Rc4 Bc2 Ba1 Nc6 Be5 Nd4 Ra7 Rd7 Rac7 Rd6 Re7 Rd7 Nec3+
3K4/N1rB1R2/1BBq1r2/qB2b1N1/P2n2N1/1RRn3n/Nb2qQr1/Rb5k b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 c4 d6 h4 Kd5 c3 d7 h3 f6 Kg6 Ke6 h2 f7 b2 d5 c2 d6 e4 Nc3 b1Q Qe2 e3 Qf2 b4 Bb5 b3 Nf3 e2 Na2 e1R+ Be3 Re2 Rc1 h1N Nh2 Bg7 f8R b2 Rf7 Be5 Bb6 Nh6 Bc6 Qc7 Ke7 Rh7 Ke8 Ra6 d8N Rd2 d7 Qd6 Ne6 Nf5 d8N Nd4 Bd7 Bb7 Nc6 Ba8 Na7 Be4 Bc6 Nd7 Kd8 Rg7 Bb5 Nc5+ Bd7 Nd3 f5+ Kh7 g6+ Kh6 g5+ Kh5 f6 Rh7 Rf1 c1B g7 Qc2 g8B b1Q g6 Qb5 g7 Qa5 Ng5 Bb2 Ng4 Qd1 Re1 Qe2 Rec1 Bf5 Rc3 Be4 Qg2 Nhf2 Qg3 Nh3 Qf2 Rc2 Rb3 Rc7 Rc3 Rh6 Bh7 Rg6 g8B Rg7 Bf5 Rg6 Be6 Rg7 Bd5 Bh7 Bc6 Be4 Qf1 Kh4 Bh7 Kg3 Bb5 Bd5 Be4 Bc6 Bg2 Be4 Rb3 Bf5 Bgc6 Be4 Qf5 Kg2 Qf4 Ne1 Qf2+ Kh1 Re7 Rg6 f7 Rg7 f8R Rg8 Nf3 Bb1 Rf7 Nd3 Ng5+ Qe4 Rf3 Qe2 Bc5 Rg6 R8f7 Rb6 Bb7 Rbc6 Bb6 Rf6 Ba8 Rc1 Rc3 Rg1 Bac6 Rg2 Rb3 Nb4 Rfc3 Nd3 Re7 Qc5 Rg7 Qd6 Rf7
1N1Rn1rr/3bqk2/3b3N/1rnP2B1/Bn3R2/3nBNN1/2Q3RK/2Bn1q1R b - - 0 1 illegal: No possible last move, all moves rejected
KR1Nq1Nr/Rn4Nk/1B1nBQ2/1rbRb3/N5q1/B4r2/3Pb3/1n1BR2r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kg7 Ke4 e5 f4 a5 g4 c5 b4 h5 g5 a4 b6 a3 f6+ Kg6 b5 c4 d6 h3 Kd5 h4 f5+ Kh7 g6+ Kh6 d7 a2 g7 h2 b7 e4 f7 c3 b6 e3 f6 h3 Qf3 c2 Be2 Kg6 Bd1 e2 Nc3 e1Q Ne4 Ba3 f8R Qg3 f7 Na6 Kc6 Rb8 Nf6 Nh6 g8B Nc5 Ne2 Nf5 Re1 Qg4 Nc3 Nd6 Qf2 Qe7 d8N Qe8+ Kc7 h1N Qf3 h2 Bb2 Ra8 b8B Ra5 b7 Ng3 Ba7 h1R Kb8 Ne2 Ka8 c1B b8R Ba6 Bb6 Ncb7 Qf1 Rf5 Qf4 Bc5 Qe5 Rf3 Qe6 Qd7 Re8 Kh6 f8N Bc4 Re7 Qe8 Qe5 Bb5 Nfe6 Bc4 Ng7 Kg6 Ba3 Bb2 Bb4 Bb5 Bgb3 Bc4 Ng8 Kh7 Qf6 Ba6 Na4 Nc3 R7e5 Nb1 Be6 Be2 Rd5 Be5 Nc3 Na3 Rc1 a1R Rc2 Rb1 Ra2 Rb2 Ra1 Nb1 Ra7 Rb3 Ba3 Rb5 Na4
1b1B1r1q/b4rrn/n1B1krR1/6N1/b3N1B1/1RNP2Rq/Q1KB2NR/7q b - - 0 1 illegal: No possible last move
2br3N/1q1nq1b1/1kB1qR1B/N4q1Q/1R2NbN1/BP2R2r/B7/r1R2K1n b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 e5 g4 a5 f6 c5 f5 Kc7 d6+ Kb6 d5 h5 g5 e4 f7 h3 d7 a4 f6 a3 g6 c4 d6 h2 g7 h4 Bg2 a2 Bh6 c3 Qh5 e3 Nd2 e2 Ngf3 c2 Ne4 c1B Ne5 h3 Ng4 Be3 Rc1 Ka7 b6+ Ka6 b7 Ne7 g8B Qe8 d8N a1R d7 Nf5 Nc6 Qe7 d8N Bg7 f8R Ng3 f7 Nd7 b8R Bf4 Rb4 Rb8 Rf1 h1Q Na5 h2 Re8 Qg1 f8B h1Q Bd5 Qgc5 Ba2 Qf5 b3 Ra8 Nf7 Qee6 Rd4 Kb6 Ba3 Rh7 Nh8 Rb8 Kf2 e1Q+ Kf3 Qb4 Kf2 Qbe7 Bf3 Qg2+ Ke1 Nh1 Rf2 Qh2 Kf1 Qg3 Bg2 Qc3 Rf3 Qc7 Rf8 Qb7 Re3 Ra8 Rf6 Rb8 Nf7 Rh8 Rc4 Rd8 Nh8 Ra8 Nc6 Ra4 Na5 Rb4 Rd4 Rc4 Bf3 Rc3 Rb4+ Qb5+ Rd3 Rc2 Nd6 Rh2 Bc6 Rh4 Ne4 Rh3 Ra4 Qbd5 Re3 Qdf5 Rb4+
1qNnN3/R1B1R1PK/n1bQ1N2/4rnB1/knB2r2/R2B2Nn/1b6/n1R3q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 a5 e4 f3 d4 f2 g4 f6 Kg6 a4 b4 a3 b6 h4 b5 c4 d6 c3 d5 h3 e5 f5 b7 a2 e6+ Ke8 d7+ Ke7 b6 Kd6 e7 Kc5 e8N Kb4 d6 h2 Nd2 c2 Bd3 f1Q Ne4 f4 N4f6 f3 Ne2 f2 Ng3 Na6 b8B Bg7 b7 Qg1 Bc7 f1N b8N Ka4 Nc6 Rh4 Ne7 Nh6 Kh7 Ra7 g6 Bb7 g5 Qb8 d8R Rf4 d7 Nf7 Nc8 Bc6 Qd2 Bh8 g7 Ne3 g8B Nf5 g6 Rb7 Qd1 Rb5 Be3 Re5 Bd2 Rf1 Bg5 Rf4 Rc1 a1N Qd2 Qd4 Rhe1 h1N Re2 Qg1 Re3 N7d6 Bgc4 Nf2 Qd1 Nh3 Re4 Rd5 Re7 Nb7 Qd2 Rg4 Qf4 Re5 Qd4 Rf4 Qd6 Rc5 Ng8 Bc3 g7 Bb2 Ngf6 Re5 Na7 Ne3 Rc8 Nf5 d8R Bh1 Rdd7 Bc6 Ba2 Nd8 Bac4 Qbb6 Ra8 Qb8 Rb1 c1N Nc8 Na2 Rc1 Nb4 Ra7 Ra5 Re3 Rb5 Rde7 Re5 Bb1 Re6 Rec3 Re2 Bbd3 Re5 Ra3+
Nq2BRBR/2n3Br/2NKRrb1/Q2N2nr/2B1Pk2/R2rb3/4n3/1Nb1b3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 g4 a5 b4 h5 d4 f3 g6 a4 g5 f6 b6 c4 b5 f2 b7 c3 b6 c2 g7 a3 g6 a2 Qd2 h4 Bb2 c1B Qa5 Qc7 Nh3 Rh5 Nf4 Na6 b8N h3 b7 h2 Nd7 Qb8 Nb6 Nh6 g8B Nf7 g7 Nc7 e3 Be7 Bb5 f1N Be8 Rh7 Rg1 h1R Rg6 R1h5 Bc3 Ra6 Na8 Rc6 Bb2 Rc3 Rh6 Rd3 Bc3 Qa7 b8N Bb7 Nc6 Qb8 Rg6 Ng5+ Kf5 Bf8 e4 Bc8+ Be6 Bd7 g8B Ng3+ Kg4 Ne2 Kf5 Bh6 Ne5 Ke7 d6+ Kd8 d5 Bb5 d7 Ke7 Rg7+ Kd6 Re7 Ba4 d8R+ Bd7 Kg6 f5 Kf6 Be3 Nc6 Bc1 Ng2 f4 Ne3 f3 Kf5 f2 Bg7 Ba3 Rc8 Bb4 Kf6 Be1 B6f7 Bf5 Re5 f1R Re7 Qb5 Re6+ Kc5 Ke5 Bg6 d6 Rf6 Nd5 Kc4 d7 Qb8 Qd2 Kc5 d8R Kc4 Nce7 Kc5 Qa5+ Kc4 Kd6 Kd4 Nb4 Ke3+ Ned5+ Kf3 Bb5 Kg4 Nc6 Kg3 Rf8 Kf3 Na3 Kg3 Be8 Kg4 Rc1 a1B Rc3 Bb2 Nb1 Bc1 Ra3 Nh3 Bgf7 Bhe3 Bc4 Ng5 Rh8 Kg3 Bg8 Kf3 Bd7 Kg4 Rf8 Nd4 Ndc3 Kf4 Be8 Ne2+ Nd5+
2r1NB1B/nrR1N2P/K2k2Qn/1r2qq2/3Bbb2/1RN3rN/1qBR3R/6q1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 c5 Kc4 e5 d4 g5 h4 a5 f4 e4 b4 e3 h5 a4 f6 a3 d6 e2 d5 e1R f7 g3 f5 g4 b6 a2 Kb5 g2 h6 c4 f6 g3 b7 c3 h7 c2 Qg4+ Re6 Be3 c1R Bd3 Ra6 Bc2 Qe7 Nc3 Ra4 Bd4 Qe8 Rh2 Nh6 Qg6 Rf1 Rc1 a1Q Nh3 Bg7 f8N+ Kd8+ d7 Kc7 f7 Nc6 b8N g1Q d8R g2 Nfd7 Re3 f8B Bb7 Nf6 Qf2 Rd6 g1Q Rd7+ Kc8 d6 Qb2 Rb1 Rg3 Rc7+ Kd8 d7 Qf5+ Kb6 Ra1 b5 Qee5 Rd1 Rb1 Rdd2 Ba8 Ka6 Na7 b6 Be4 b7 Rf4 Rc5 Rh4 Nc6+ Kc7 b8R Rh5 Ne7+ Kd6 Rc7 Rg8 Rb3 Bh8 Bg7 Rc8 d8B Rhg5 Bf8 Rh5 Nfg8+ Bf6 Qg4 Bg5 Nf6 Bf4 Qg6 Rhg5 Rc5 Ra1+ Ba5 Ra4 Rc7 Rb4 Bab6 Ke6 Bbc5 Rb7 Bg7 Rh5 Bh8 Rhg5 Neg8 Rh5 Bf8 Rhg5 Ne7 Kd6 Rd1 Rh5 Rdd2 Qfe6 Ra3 Q5d5 Rdf2 Re5 Rb3 Qf5 Rd2 Qde6 Bb1 Reb5 Bc2 Qee5 Ne8#
6n1/Q3NbbN/2r1B1Bn/1B1K4/q1PR2pN/B4r1q/Rq1R3k/bR2r1N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kg4 h4 Kg3 Rh2 a5 e4 g5 b6 f5 h6 a4 h5 d6 b7 d3 b5 f4 h7 g4 b6 a3 e6 f3 h6 d2 e7 f2 e8B a2 e5 Qd7 e6 Qg7 e7 Ra6 Bg6 Bf5 e8B Nc6 b8N Qd7 b7 Nf6 Nc3 Be6+ Nd5 Qg7 Bd7 Rg8 h8R Nd4 c3 Nf5 h7 Nh6 Qa4 d1R Nc6 Re1 b8R Rb6 Bfd3 f1Q Ba3 Qh3 Qa7 Ra6 Rab1 a1B R8b2 Rb6 Bc8 Rb3 Ra2 Bf7 Bc5 Ra3 Be6 Rb3 Rhb2 Ra3 Be2 Kh2 Nce7 Rb3 Ne3 Ra3 N3f5 d5+ Kd4 Rb3 Nh4 Ra3 Ke5 d4 Bb4 Rb3 Ba3 d3 Kd4 d2 Bb5 Qf3 c4 Qh3 Kc5 Rf3 Rc2 Nd7+ Kd6 Qb2 Kc6 Bg7 Kd6 Rb8 Rd8 Nf6 h8N Rc8 Rd7 Be8 Nf7 Nfg8 Ng5 Bf7 Nh7 Rc5 Ne2 d1Q+ Rd2 Qa4 Rd8 Rcf5 Kc6 Rh5 R8d4 Rc5+ Kd6 Rc7 Kd5 Rc6 Ng1+
Q1R2bB1/Rb1B2r1/5k2/2N2PNn/p1rN4/nR2n2b/B1RK1B1n/4Nq1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kf7 b4 e5 g4 a5 f4 c5 d6 h5 g6+ Kg7 d7 e3 b6 h4 d5 h3 b7 e2 d6 e4 g5 h2 b5 c4 f5 c3 b6 c2 Nh3 Qe8 d8R Qe6 d7 Rh4 Kd2 e1N Bb5 Nh6 Na3 Qc4 Qf3 Ng2 Rg1 Ne3 Rg2 h1B Rf2 Nc6 b8R Nb4 b7 Nd3 Re8 Rg4 d8N Nf4 Bd7 Ra7 Nc6 Qf1 Nd4 Bg2 Bb2 c1N Nac2 Ncd3 Ne1 Rh4 Ba3 Rg4 Bc5 Nh5 Ra3 Rf4 Ra8 a4 b8N Nhg4 Na6 Bb7 Rec8 Nh2 Rb3 Rg4 Bb6 Rf4 Re2 Nf2 Nc5 Nh1 Rf2 Kg8 g7 Kf7 g6+ Kf6 Ng5 Bh3 g8B Rg4 g7 Rf4 Bf7 Rh4 g8B Rg4 Nge6 Rg7 Rg2 Ra5 Ncd3 Rc5 Ng5 Rc4 Ra7 Nc2 Bd5 Na3 Nc5 e3+ Kd1 e2+ Kd2 Ke7 Bdf7 Kf6 Rf2 Ba6 Qa8 Bb7 Ned3 e1N Bfe6 Nec2 Ne1 Rh7 Bc7 Ng7 Rb2 Qd3+ Kc1 Rb4 Bg3 Qf1 Ba2 Rc4 Rb3 Ne3+ Rc2 Nh5 Bf2 Rg7 Kd2
1R1qBN2/6b1/1R1B1q2/2QK1n1p/qRP1n3/1NrNBq1q/2b4k/N2R1r1B b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 c4 h5 g4 d3 f4 d6 b4 d2 b6 a4 b7 a3 g6+ Kf6 g7 a2 b5 Nh6 g8R Qe8 b6 Ra4 g5+ Kf7 f6 Ke6 f5+ Kd7 f7 Qd8 g6 Ra3 g7 Na6 b8B Nc5+ Kd5 e4 b7 e3 f6 e2 Bg2 e1Q Ne2 Nf5 Nf4 Rc3 Nd3 Ne4 Na3 Qh4 Rb1 a1Q Nc2 Qh3 Qg1 d1Q Rb6 Qdf3 Be3 Rh6 Rh8 Qa6 g8B Bg7 f8R Qa4 f7 Rf6 Bc7 Qa6 b8N+ Ke7 Kc6 Ke6 Nd7 d5 Bd6 d4 Qf2 Qa1 Rd1 Qb2 Bh1 Qa1 Nc1 d3 Ne5 d2 Ned3 Qb2 Na1 Bd7+ Kb7 Ba4 Rh6 Bc2 Kc6 Qfg2 Ncb3 Qgf3 Rc1 d1Q Rb4 Nfg3 Rb1 Kf5 Kd5 Kg4 Re8 Nf5 f8N Rf7 Bh7 Rf6 Bg6 Rf7 Bd2 Rf6 Qc5 Kh4 Be3 Rf7 Re5 Kg3 Rb8 Rf6 Be8 Kh2 Rc1 Qa2 Rb4 Qdf1 Rd1 Qa4 Rb8 Rg6 Rb4 Rg1 Rg6 Q1f2 Rh6 Rf1 Re7+ Qf4 Reb7 Qfh4 Re6 Qhf6 R7b6 Qfg3 Re7 Qf4 Reb7 Qfg3 Rb8 Qf4 Ne5 Qff3 Nd3+
N1KQ1rN1/4r1R1/1r1b4/B1B5/1nqq1B1n/pb1BRN2/1kR3rP/Nq5R b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 a5 b4 g5 f4+ Ke4 d4 e5+ d6 a4 f6 a3 f5 c6 d5 g3 f7 g4 f6 g2 b6 g3 b5 Bd7 b7 Ne7 b6 Ra6 Nf3 g1R Ra2 g2 Bf4 Ra7 Rc2 Bh3 d7 Ra4 Kd6 Qc8 d8N c5 Ne6 c4 Nc7 c3 Na8 Na6 b8N Be6 b7 Qc4 Nc6 Nb4 Kc7 Ra6 b8R Rb6 d6 Nf5 d7 Nh4 Re8 Bd6+ Kc8 Rf8 Bd3+ Kd5 Nbd2 e4 Nb3 e3 Na1 e2 Qd2 e1R Qd1 Qd4 Ne7+ Kc5 Qd2 Bb3 Ng8 Re7 d8B Qc4 Bc7 Kb5 Qd1 Ka4 Qd2 Rge1 Qd1 g1Q Qd2 Qcd4 Bd8 R7e2 Re3 Rg2 Qd1 Ree2 Qd2 Qb1 Qd1 Re8 f8R Re7 f7 Ref2 Re8 Rf1 f8B Rff2 Rce2 c2 Bc7 c1Q Rc2 Reg7 R8e5 Re7 Rg5 Rf1 Rc6 Qcc4 Rg7 Na2 Bd8 Kb4 Rc7 Kc3 Rc5 Nb4 Bc7 Rb7 Ba5 Kb2 Bg6 Be5 Rf7 Qde4 Nd4 Qa6 Bg3 Re6 Rg7 Reb6 Be7 Rff6 Nf3 Rf8+ Qd8 Qd4 Bf4 Bc7 Rcc3 Qac4 Bc5 Bd6 Bd3 Re7 Rc2+
N1b1R1n1/1n2b2q/R3Nb2/2PR2np/5kqN/rR1Q4/BBr1B3/1BbKN3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 e5 g4 h5 b4 a5 f6 Ke6 b6 d5 f5+ Kd6 b7 d3 f7 d4 b5 e4 g6 Ke5 f6 a4 b6 e3 g7 e2 c5 a3 g5 a2 g6 Qc7 Bb2 Bd7 Nf3+ Ke4 Nc3+ Kf5 Na4 Be7 f8N Ra7 f7 Bc8 Ne6 Nc6 f8N Na5 b8R Nb7 Kd2 Ke4 Ne1 Rh7 Kc1 d2+ Kc2 Qd7 Rg1 Ra5 Rg5 Rb5 Qb1 d1N Rd5 d3+ Kd2 Nc3 Qd1 Nf6 g8B Qc7 Bf7 Ng8 g7 Rb4 Qc2 Rc4 Ng6 Rh6 Kc1 Rh8 Qb3 d2+ Kc2 Rh6 Nh4 Rf6 Qb5 Rf3 Bg6+ Ke3 Qb3 Rh3 Bd3 Ne4+ Qc3 Ng5 Ra8 Nh6 g8B Rg3 Rb1 a1B Bf7 Ng8 Ra6 Na5 b7 Qd7 b8R Nb7 Nc7 Kf4 Nb6 Qf5 Nba8 Qh7 Nef3 e1B Be2 Bf2 Ne1 Be3 Kd1 Rf3 Qb3 Rc2 Bf5 Rh3 Qd3 Rg3 Bc3 Rf3 Rb3 Bb2 Bh8 Bc1 Bb2 Bd4 Qb5 Rfc3 Qd3 Bdf6 B7e6 Bd7 Re8 Bc8 Rb5 Ra3 Rb3 Rc4 Qh3 Rc3 Bb1 Rc2 Qd3 Qe4 Rc3 Nd6 Bf3 Ra2 Rd4 Ra3 Bea2 Kg3 Rb3 Qh7 Rd5 Nb7 Ke2 d1Q+ Kf1 Qd2 Ne6 Qb4 Bg4+ Be3 Bd1 Qg4 Bf3 Bd2 Ke2 Be3+ Kd1 Bc1 Ng7 Kf4 Be2 Qe4 Rdd6 Qef5 Rd5 Qh7 Ne6+
7K/3b1N2/B1Rq1P1Q/B1nB3n/1N2rbp1/r4Nk1/1Bq1Nqb1/1bR3RR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 d5 Kg6 a5 c4 d3 f4+ Ke4 h4 e5 b4 d2 h6 d4 f6 d3 c5 a4 b6 a3 b7 a2 f7 Qb6+ c6 Bh3 b5 Qc5 h5 Ra7 c7 Qc3 c8B Ba3 f8R Bc5 h7 Qc2 b6 Bg4 h6 Bd7 f5 Kf4 Bg2 e4 Rf6 e3 Bd5 e2 Rc6 e1Q Bb2 Ra3 Nf3 Bd6 Nc3 Nf6 Qc1 Nh5 f6 Qf2 Rg1 Na6 b8B Re8 h8N Nc5 Kh7 g5 b7 g4 Nf7 Re4 Bc7 Be5 Rb1 a1Q b8N Qa2 Na6 Qc4 Qe1 d1B Kh8 d2 h7 Qcd4 Nb4 Be2 Ra1 d1B Rc1 Bf1 Ba6 Bg2 Ba5 Kg3 Qd2 Bb8 Qh6 Bf4 Kg8 Be2 h8R Bd3 Rh7 Qe5 Kh8 Qd6 Qg6 Ng7 Rhh1 Nh5 Qg7 Bc4 Qg5 Ba2 Qh6 Bb1 Ne2+
4rBb1/bk3r1n/2P2bBp/B3N1qq/K5N1/RRN4N/Qr3nBR/R2r4 b - - 0 1 illegal: No possible last move, all moves rejected
bNB3r1/RN6/pQ6/2b3kr/KN3q1R/R1r2Nn1/Pr1Rr3/B1BB1rq1 b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Nc6 h4 Nd4 Qd2 Ne6 Qd6 fxg4 Qd1 g3 Bd2 g4 Bc1 Ng5 hxg5 Kf7 Nc3 Ke7 Nb1 Ke8 Kd2 Ke7 Kc3 h5 Kb3 b5 f4 d5 e4 a6 c4 d4 f5 d3 f6+ Ke6 f7 h4 c6 h3 c7 g2 c5 h2 g6 d2 g7 g3 c6 b4 Nf3 g1Q Nc3 g2 Ka4 b3 Nd5 b2 Nb4 b1R Qb3+ Qd5 Be2 Be7 f8B Qb6 Bd1 Bd7 c8B Kf7 e6+ Kf6 e5+ Kf5 Qb2 Bd6 e7 g1R e8R Qe3 e6 Ne7 g8N Rg3 Bg7 Bc5 Nf6 Qde4 Rd8 Be8 Nd7 Q4f4 Nb8 Qg1 Rd7 Rg8 c7 Ra7 Qd4 Rb2 Qd6 Kg6 Qb6 Nf5 e7+ Kh5 Bc3 Rg2 Bf6 Re2 Bg7 Bg6 e8N Ng3 Nd6 Be4 Nb7 Ra8 Rd3 Bd5 Ra3 Be4 Bc2 d1R Bh8 Rf1 Bd1 Rec2 Bf6 Rc3 Rb1 Re2 Rb2 Kg6 Rd2 Ra7 Na5 Ba8 Nb7 Kh6 Bg4 Kg6 c8R Kh6 Rc7 Kg6 Nd8 Rb7 Bc8 Kh6 Qd6 Rb6 Ra7 Rb5 Qd4 Kh5 Nb7 Kg6 N4c6 Rb2 Nb4 Kh5 Qd6 Kh6 Qb6 Kg6 Bg7+ Kh5 Ne1 Kg5 Rc2 Rd3 Be6 Rb1 Ba1 Rc3 Bc8 Rb2 Rd2 Qgf2 Rg1 h1R Rg2 Rh5 Rh2 Qg2 Rh4 Qg1 Nf3+
2R1kqNb/1q2BR2/1QNp4/1BNbbn2/1B4nq/2b2R2/1N1P3R/K1B1q1r1 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 f5 e4 g5 exf5 Bb7 a4 Bg7 h4 gxh4 b6 Bc8 b7 Ra6 b5 Rd6 b6 Rd5 Nh3 Rb5 axb5 a4 Ng1 Bf8 g4 e5 f4 c5 g5 h5 g6 a3 g7 c4 f6 a2 f5 h3 f7+ Ke7 Na3 h4 Nf3 h2 Qb3 c3 Kd1 h3 Kc2 e4 Nc4 e3 Nb2 e2 Ng5 e1Q Ne4 Nh6 Nc5 Nc6 b8B Ng4 b7 Rg8 b6 d6 Ba7 Qe8 b8R Be6 b7 Bd5 Qb6 Qh4 Rb1 a1B Rc8 Qd8 b8N Nd4+ Kd3 c2 Kc3 Qe1 Bb5 Qh4 Rf1 h1Q Rf3 h2 Nc6+ Kf6 Bd3 Q1e1 Bb5 Be7 f8B Kf7 f6 h1Q Nb7 Ke8 Nc5 Rh8 g8N Nf5 Rc7 Qb8 Rc8+ Bd8 Be7 Rh7 Qb7 Rg7 Bb6 Qhf1 Ba5 Qc7 Qb6 Qb7 Kb4 Rg5 Ka3 Rg7 Bb4 Rg6 Nc4 Be5 Ka2 Rg7 Rbb3 Qff2 Rh3 Qff1 Rh2 Qff2 Bca3 c1B Rf3 Rg6 Kb1 Bcb2+ Ka2 Bbc3 Bc1 Qfe3 Kb1 Qeh6 Nb2 Qf8 Ka1 Ngh6 Nb3 Rg1 f7+ Kd7 Qa7 Ng4 Qb8 Bb6 Qa7 Bbd4 Qb6 Qfh6 f8R Qg7 Rf7 Qf8 Bd8+ Ke8 Nc5 Bh8 Ra8 Bdg7 Rc8 Bge5 Be7+
qnr3B1/N1BqrnpN/n1b5/RR2N3/2R3RQ/3r1N2/pBk2B1P/b6K b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 d4 Kf7 f4 Kf6 Kf2 e5 Kg2 a5 b4 c5 b6 g3 d6 c4 d5 a4 b7 c3 b5 c2 d7 e4 b6 a3 d6 e3 Qe1 e2 Nf3 Rh4 Bb2+ Kf7 f6 Kg6 f7 Kf5 Rg1 Ke4 f5 Kd3 f6 c1N Nbd2 Rh8 Nc4 Na2 Nce5+ Kc2 Kh1 Be7 f8R Ra7 f7 Na6 b8B Bb7 Bc7 Qa8 d8N Nh6 d7 N2b4 Ndc6 Bf6 Rc8 Nb8 f8N Nf7 d8B N4a6 Nh7 Rg8 Qb4 e1R Qh4 Re3 Bc4 Rd3 Be7 Rh8 Bc5 Re8 Bf2 a2 Rae1 Rf8 Be6 Rh8 Re4 Re8 Ra4 Red8 Ra5 Rg8 Ne7 Bc6 b7 Rh8 Rd8 Re8 Rd4 Rc8 Rg4 Ng5 Bg8 Nf7 N5g6 Bd4 Ne5 Bc3 Re1 Bd4 Ree4 Bc3 Ba3 Ba1 Bb2 g2+ Kg1 Nd7 b8R Rb7 Rb4 Ra7 R8b5 Ndb8 Nd5 Rb7 Nc3 Ra7 Rbc4 Rb7 Bd8 Re7 Bc7 Nd7 Rb7 Ndb8 Bd4 Re3 Nb5+ Rc3 Rca4 Rb3 Na7 Rc3 Rbb5 Re3 Rc4+ Rc3 Kf2 g1Q+ Ke2 Qe3+ Kf1 Qd3+ Kg2 Qd2+ Bf2 Qd7 Rcd4 Rb3 Kh1 Rd3 Rc4+
bn5q/1N1rN3/p2R3k/nr1BBQ1P/4R3/Kn3r2/2Bb2p1/R1rR1BNN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 c5 d4 g5 Kd2 f5 Kc2 Kf7 Kb3 Kg7 e4 g3 h5 g2 d6 c4+ Ka3 g4 b4 a6 d7 g3 e6 c3 d5 c2 e7 f4 e8B f3 d6 f2 e5 Kh7 e6 Ne7 b6 Bb7 b5 Nec6 e7 Bg7 Qf3 Qc7 d8N Na5 d7 Qe5 Bb2 c1R Bg6+ Kh6 e8B Rf8 Qf5 Rc5 Bef7 Re8 Nc3 Bf6 Bd5 Bh8 Ne4 Qe6 Be5 Ra7 Bh7 Bc6 b7 Rf8 b6 Qe8 Bg6 Bf6 Rh4 Bg5 Rg4 Ba4 Nc6 Qd8 Ne7 Rb5 Rd1 Qc8 d8N Bd2 Ra1 Bd1 Bh7 Bf3 Rd1 Nbc6 b8R Rd7 Nb7 Rf7 Bg6 Qh8 Rd8 Nb8 Ra1 Rc7 Rd6 Rd7 Ng5 Rf6 Re4 Rf8 N5h3 Rf6 Bd3 f1N Nf2 Rf8 Nh1 Rf6 Ne2 g1R Bc2 g2 Bgf7 Qg7 Bc4 Qh8 Bfd5 Ne3 B4d3 Rc1 Ng1 Nb3 Bf1 Nc4+ Ka2 Nca5 Ka3 Qe8 Nd8 Qg8 b7 Nbc6 b8R Qh8 Rc8 Nb8 Rcc4 Nbc6 Nb7 Nb8 Re1 Be4 Rd1 Bf3 Be6 Bd5 Re4 Bc6 Qg4 Rf3 Qf5 Bd5 Nd8 Ba8 Nb7 Qf8 Bd5+ Qf6 Be6 Qh8 Bd5+
2r2nbK/1Bb2BNn/1q1NpR2/2R5/k2N1Br1/5Q1B/P1N2pb1/R2q1b1R b - - 0 1 illegal: No proof kernel
RK1Bb2b/8/3Nrb2/Bknbrrp1/2N2NB1/1q1R2P1/R2b1B1p/4QR1N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Nc6 h5 Nce7 Qa4 Qd6 Qd1 Ng6 hxg6 Qd8 Kf2 Kd7 Kf3 h5 Ke4 a5 Ke5 c5 b4 f5 d4 h4 e4 a4 d6 a3 d5 a2 g7 c4 g3 h3 b6 h2 b5 f3 b7 c3 b8B f4 b6 c2 b7 f2 Ba7 f3 b8R Rh4 Bh3+ Rg4 Bd2 f1R Bf2 c1B Rb3 Ra5 Na3 Ne7 g8R Qb6 Qe1 Bh6 Rd3 Qb4 Nc4 Bb7 Ra8 Nc8 Bc3 Kd8 d7 Kc7 d8N Bd2 Ne6+ Kd7 Nf4 Qb3 Bb4 Nb6 Bc3 Ra6 d6 Kc6 d7 Kb5 Kd6 Bg7 Kc7 Bd5 d8B Nd7 e5 Re6 Ba5 Nc5 Kb8 Rh4 Bg4 Bf6 Ngh3 Rh7 Rc1 a1B Rc2 Rhe7 Ra2 Bac3 Bd4 f2 Be3 Ra6 e6 Bh8 Rg1 Bcf6 Bd4 Re8 e7 Re6 Rh1 Rg1 Be3 f1B Nf2 Bh3 Bd4 Rf1 Rg1 Bhg2 Nh1 Bge4 Be3 Bg6 Bd4 Rf3 Rf1 Bh5 Bf2 Bg6 Ne2 Rf5 Nf4 Rfe5 Rd4 Rf8 e8N Bf7 Rd3 Bh5 Ng7 Be8 Nf5 Bfg7 Nh6 Rff5 Nf7 Bf6 Nfd6+
1R1b3B/1NPpp1pr/bK2R3/n2BR2n/b3BN2/2qr3B/N2Q4/nR1Nk3 b - - 0 1 illegal: No proof kernel forced: wxDB
R1RkN1NK/4bB1b/B1pB4/bq2pRrq/QNpN3P/6n1/5r1n/1R4B1 b - - 0 1 illegal: No possible last move, all moves rejected
r2b2q1/P6p/B2K2bR/B7/nrB2p2/R3Qr1R/pB1nRN2/k1qN1NN1 b - - 0 1 illegal: No possible last move, all moves rejected
KQ3n2/p2B2q1/4R1Nr/1b1kPq2/2RbNn2/nNN1rBp1/p2BR3/5B1R b - - 0 1 legal: proof: f4 b5 g4 c5 d4 h5 gxh5 e5 fxe5 Na6 dxc5 Nb8 a4 bxa4 Kf2 Ke7 Kf3 Ke6 Ke4 g5 b4 d6 h4 g4 c4 a3 b5 g3 h6 f6 c6 a2 b6 Qe7 c7 Qd8 h7 Bg7 c5 Bd7 c8B Nc6 b7 Na5 b8R Nb3 c6 Na5 h5 Nb3 c7 Qe7 h6 Nd4 Bb7 Qf7 c8R Qe7 Bd2 Nf5 Nf3 Qf7 Nc3 Bb5 Rc4 Nd4 Re8+ Ne7 Qb3 Nc2 Re1 Na3 e3 Rc8 Re2 d5+ Kd4 f5 e4 Ra8 Kc5 d4 Qb2 d3 Nd4+ Kd7 Nb3 Ke6 Bc6 f4 Bb7 f3 Bd5+ Kd7 e6+ Kc7 Bb7 Ng6 e7 f2 Bc6 Nf8 Bd5 Rg8 h8N Rd8 h7 Rd6 Bc6 Rh6 Ng6 Be5 h8N Qg7 Kd5 Bd4 Nf7 Rgh8 Nd6 R8h7 Bg2 f1Q e5 Qf5 Qb1 Rh4 Qb2 Re4 Bf1 Re3 Nde4 Rh6 Bd7+ Kb7 Kd6 Qf4 Bg4 Qf5 Bf3 Kb6 Rd8 Kb7 e8B Kb6 Bd7 Kb7 Be1 d2 Re8 d1N Bd2 Nf2 Re7 Nd3 Re6 Nf4 Qb1 Ka6 Kc7+ Bc6 Kb8 Kb6 Re7 Bb5 Ka8 Ba4 Nbc5+ Kc7 Bc8+ Kc6 Qb8 Bb5 Nb3+ Bc5 Nb1 Kd5 Bd7 Bb6 Re6 Bd4 Nbc3+
Bbr2nNB/1NN2RQ1/Nk1K2Rq/1r2Rb2/pr4BR/6p1/p4P1n/2r4B b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 Rh6 dxc5 Rh8 a4 bxa4 Kd2 g5 Ke3 d5 Kd4 Kd7 Ke5 Kc7 c4 a5 b4 d4 h4 g4 h6 d3 f6 g3 b5 d2 f7 e6 h7 a3 b6+ Kb7 c6+ Ka6 c7 a2 h5 a4 c5+ Ka5 b7 Qe7 h6 Qd7 c6 Ra7 Nc3 Ra8 Nb5 Qe7 Ne2 Ra7 Ned4 Kb6 Nb3 Qh4 Bb2 Qh2 Na5 Be7 f8R Qg1 Bg2 Qh2 Qg4 d1R Rf7 Na6 b8N Bd7 c8B Rd4 c7 Bg5 Bcb7 Rc4 c8B Nc7 Rae1 Rb4 Ba8 Nf6 Nb7 Ra5 Na6 Re8 h8R Qh3 h7 Qh6 Kd6 e5 Rh4 e4 Bh1 e3 Rg8 e2 h8N Ne6 Ng6 Nf8 Ne7 Bf4+ Be5 Rd8 Qg5 Ng4+ Kd5 Nh2 Bh8 Bd6 Qe5 Bh3 Rg6 Re8 Bf5 Rc8 Qg7 Bg4 Be6 Bb8 Ng8 Bh3 Nbc5 Bg4 Nbc7 Rab5 Kd6 Bh3 Nb7 Bg4 Rd1 e1R Rd5 Rc1 Re5 Bh3 Bc4 Be6 Be2 Bf5 Bg4
2rb1Qnr/1rn1N1p1/1p1PkBB1/3R1Nr1/N1b5/K3p2B/3RRN2/2B1qR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 a4 e5 f4 c5 d4 b3 Kd2 b2 Kc2 c4 a5 c3 Kb3 e4 d6 e3 h6 b6 f6 c2 f7 Qf6 d5 Qd4 f5 Qd2 a6 Qe1 h5 Ne7 a7 Na6 h7 Ng6 f6 Nb4 h6 Bb7 Ra2 Rg8 h8R Bc6 h7 Ba4+ Ka3 Ne5 Rh5 Nbd3 Nh3 Bc6 Nc3 b1R Qf3 Ra1 Nf2 Ng6 Na4 Nc5 Bh3+ Kd8 d7 Rb8 a8B Kc7 d8B+ Kd6 Bb7 Be7 f8N Be8 f7 Nd7 Ne6 Bh4 f8R Ne7 Nd4 Nc5 Nf5+ Kd7 d6 Bf7 Ba6 Rb7 Bd3 Bc4 Rf7 Ke6 Rg5 Nd5 Bf6 Ne7 Rh5 Re8 Rhf8 Bg5 h8N Ng8 Ng6 Na6 Nge7 Rb1 Qf4 Rb5 Be4 Reb8 Rc8 Ra5 Rc5 Rd8 Rd5 Nc7 Rd2 Rda8 Bc6 Rb5 Be8 Rba5 Rf8 Rd5 Bg6 Rc8 Bcb2 c1R Re2 Rcd1 Bc1 R1d4 Qf3 Rh4 Rad2 Rb5 Qc6 Ra5 Qe8 Re5 Rf7 Rc5 Qf8 Ra5 Ba1 Bf6 Rg5 Rh8 Rh5 Bh4 Bf6 Rc5 Nh6+ Rf5 Bfb2 Bb5 Nfg4 Qh1 Nd5 Bd8 Ne7 Rf3 Rhd5 Rg3 Rff2 Qg1 Bf6 Qe1 Rf1 Bc4 Nhf5 Rg1 Nf2 Rg2 Bcb2 Rg5 Bc1
bn3NBq/2qB2N1/BB5Q/3PnbK1/qB3rB1/4Q3/bN2R3/1B2b1kb b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 b4 d5 f4 e5 fxe5 d4 h4 d3 h5 Ra6 Ra4 Rg6 hxg6 Qe7 Ra3 Kd8 cxd3 Nh6 d4 Ng8 d5 Qd7 Rf3 Ke8 Rf4 gxf4 g5 Qd8 Kf2 Ke7 Kf3 h5 d4 f5 e4 c5 e6 Kd6 g7 h4 b6 c4 b5 c3 e7 h3 e8B c2 g6 h2 e5+ Ke7 e6 Kf6 e7 Kg5 d6 Kh4 d7 a4 b7 a3 b6 a2 d5 a1Q Nc3 Qa4 Bd2 c1Q Nge2 Qca3 Nd4 Qc7 d8B Qad6 Qe2 Nc6 b8N Qdd7 b7 Nf6 g8B Ng4 g7 Qe6 Qe3 Qee5 Bd3 Kh3 Nd7 Nb8 Nd1 Rh4 Ne6 Qea1 Rg1 h1B+ Rg2 Qf6 Bg6 Ne5+ Kf2+ f3 e8B f4 Ba6 Bc5 Nb2 Bb4 Bb1 Qh6 Bh5 Qh8 Ndf8 Bd7 Be8 Bc6 Bd7 Ba5 Bb4 Rg4 Rg1 Kh2 Rf1 Rh4 Bgh7 Rg4 g8B Rh4 Ke1 f2+ Kd2 f3 Bhf5 Rf4 Bg4 Kg2 Ng7 Kh2 Re1 f1B Re2+ Bfg2 Rf2 Kg1 Nc4 Bh3 Nb2 Qc8 Bb6 Qc7 Bh5 Bf5 Bg4 Re4 Qh6 Rc4 Ke3 Rf4 Rd2 f2 Rc2 f1B Rd2 Bcb5 Rf2 Nbc6 b8Q Bfc4 Qc8 Nb8 Qe8 Bc6 Qe7 Ba2 Qc5 Rc4 Qd4 Bb7 Kf4 Ba8 Qe4 Rd4 Kg5 Rc4 Qe3 Rf4 Ba3 Bc3 Bb4 Be1 Re2+
QNn2KRB/Q3r3/3Qb2k/1P1b3r/2r2RrQ/2qN3Q/4Q1rb/Qr2N3 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f7+ Kd7 cxd3 Qe8 d4 Qd8 d5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Bg7 h4 Bb7 h5 Bh6 f5 Bf8 f6 Bc8 g5 Nc6 Bd3 Ne5 Bf5+ gxf5 Rh2 Qe8 Rh1 Ng6 hxg6 Qd8 Kf2 h5 Kg3 a5 Kh4 c5 b4 e5 d4 c4 b6 f4 b5 c3 g7 f3 g6 f2 Kg5 f1R d6 Ke6 d5+ Kd7 b7 h4 Nh3 a4 Nf2 c2 Na3 e4 Bb2 c1R Nd3 h3 Rg1 h2 Qe2 h1B Nc2 a3 Nce1 Nh6 g8Q e3 g7 a2 Kg6 Rc7 Qh7 Rf2 g8Q Nf5 Qgg7 Rc4 Qh3 Qa5 b8N+ Kd8 d7 Nd6 Rg4 Qc3 Rf4 Raa4 Qgh7 Be7 Kg7 Rab4 Rd1 a1R Q7h4 Rh5 f8Q+ Ne8+ Kg8 Rg2+ Qg7 Rb1 f7 Nd6 Rc1 Bg5 Kf8 Bf6 Qhf2 Bh4 Qd4 Bg3 Qff1 Bh2 Qa7 Qd2 Bh8 Qc3 Qea2 e2 Qa1 Bb7 Rc2 Nc8 Ra2 Ba8 Ra6 Ra4 Rg6 Bc6 Rg8 Bb7 Nc2 e1R Qff2 Re7 Qe2 Ra2 Nce1 Rg4 Qef3 Rag2 Qf1 Kc7 Qe2 Kd6 d8Q+ Rd7 Qdh4 Re7 Qab2 Bc6 Qba2 Bd7 Qa1 Be6 Q7a4 Kc7 d6+ Kd8 d7 Rf2 Qeb2 Bhd5 Qe2 Rfg2 Q4a3 Kc7 Qa7+ Kd6 d8Q+ Bd7 Ne5 Ke6 Re4 Kf5 N5d3 B7e6 Qd6 Ba8 Bg7 Kg6 Bh8+ Kh7 Rf4 Bad5 Qa8 Rh6 Qc5 Bf5 Qca7 Rec7 Ke8 Rh5 f8Q Bfe6 Qfc5 Re7+ Kf8 Kh6 Qd6
3qBq1B/n2BRr2/NN1PbBr1/4KbQ1/5pN1/1q3B2/1BQ3kB/1n3b2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 h4 Nf6 b4 Be6 g4 Bf5 Ra3 Bh6 Rf3 Qe7 Rf4 gxf4 g5 Qd8 g6 Bg5 hxg5 Ng8 Rh3 Bd7 Rh1 Bc8 Kf2 Kd7 Kf3 h5 Ke4 a5 d4 c5 g7 f6 b6 c4 e6+ Kd6 b5 h4 b7 f3 e7 h3 e8N+ Ke7 b6 h2 g6 f5+ Ke5 a4 e4 c3 d6+ Kd7 d5 f2 Qc2 a3 Be2 f1B Nf3 a2 Na3 a1Q Bb2 Qe1 Nc7 Bg2 Nc4 Ne7 g8B Qf1 g7 Ra7 Na6 Rh6 Rg1 h1B Nh2 Rg6 Ng4 Qf3 Re1 Bf1 Bf7 Bhg2 g8Q Bh3 Qg7 Qe3 Qf6 Qh6 Qg5 Qhf8 Bg8 Ke8 Bh7 Be6 d7+ Kf7 Bg8+ Kg7 Bf7 Kh7 Be8 Kg7 Kd6 Nbc6 b8B Rc7 e5 Na7 b7 Kh7 Nb6 Kg7 Qd1 c2 Qb1 c1Q Qc2 Rc4 Bc7 Qb1 b8B Rc3 Rc1 Rf3 Re1 Qc8 d8B Qa2 Na4 Qb3 Bd7 Rf4 Ba5 Rf2 Bac3 Rf4 Bb6 Qcd8 Bg1 Kh7 Bh2 Kg7 Nb6 Rf3 Kc5 Rf2 d6 Nd5 Kd4 Rf3 Bc7 Kh7 Ba5 Nc3 Bb4 Nb1 B4c3 f4 Ke4 Re3+ Kd4 Bf5 e6 Kg7 e7 Be6 Nh6 Bhf5 Ng4 Rh3 Ke5 Rh7 Ne3 Kf7 e8B+ Kg7 Qf6+ Kh6 Ng4+ Kh5 Qg7 Qg5 Bd8 Kh4 Bf6 Kh3 Qh6+ Qh4 Qg5 Rf7 Bh8 Be4 Kd4 Qg3 Qe7 B4f5 Beb5 Qf3 Qg5 Bd5 Re7 Bde6 Be2 Qe4+ Kc5 Kg2 Bcf6 Qc6+ Kd4 Qc8 Ke5 Qd8 Bf3+
Rb4N1/N1N2p2/2QR1NP1/n1NNB1r1/1r2Qn1p/N2R4/n2K1bq1/r4k2 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 b5 fxe5 g6 a4 Bc5 axb5 Ke7 g3 Ke8 Bh3 Bf8 b6 Nc6 Bf5 Nb8 g4 Na6 h3 Nb8 g5 Be6 Bd3 Bg4 Bf5 gxf5 hxg4 Bc5 Nc3 Bb4 Nb1 Bf8 e4 Kd7 d4 c5 b4 a5 d6 Kc6 e6 Kb5 d5 Kc4 b5 h5 b7 f4 e5 h4 b6 f3 e7 a4 e8N a3 d7 f2+ Kd2 f1R g6 a2 g5 Rh5 e6 Qc7 d8R Qg3 g7 Rf6 d6 Ra6 d7 Rh8 e7 Rh5 g6 Ra5 Na3+ Kd4 Qe1 c4 Nc7 Nc6 e8Q Rab5 b8N Bc5 b7 Rf1 Nh3 Nf6 g8N Na5 Nf4 Rg5 Nba6 Rb4 b8N Nh5 Nfd5 Nf4 Rh3 Qg2+ Q1e2 Ba7 Nc5 Bb6 Bb2+ c3+ Kc2 Rd1 Qe6 Rh1 Qc6 Ba7 Re3 Rg1 Re6 Rf1 Rd6 Rg1 Nba6 Bb8 Ne8 Rh1 Nef6 Re1 Rc1 a1B Nac7 Rg1 Rf1 Rh1 Rf3 Rf1 Bc1 Bb2 Bd2 Ra1 Rf8 Bc1 d8N Bb2 Be1 Bc1 Bf2+ Be3 Bg3 Bf2 Qe1 Qh3 Qb1 Qg2 Kc1 c2 Kd2 c1N Rc3 Na2 Rd3+ Ke5 Qc2 Kf5 Re8 Ne6 Be5 Nf4 Nh5 Kg4 Qc4 Qf3 Nhf6+ Kh3 Qe4 Kg2 Qd7 Kg1 Nc6 Qh1 Na7 Qg2 Qc6 Kf1 N7a6 Bc7 Ra8 Bb8 Nac7
1B2rBBB/1NQn2K1/Q3pB1Q/1n6/1N4Pr/1pbq4/k1r1qbR1/3B3B b - - 0 1 illegal: No possible last move
5r1N/5NK1/NNBbNr2/2Qq1P2/B3Q1nB/bpb3NN/3np3/k3b2R b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 h5 a4 Rh7 f5 Rh6 f6 Rh7 Ra3 Rh8 Rg3 Kd6 Rg2 Bf5 gxf5 Kd7 Rg4 hxg4 Kf2 Kd6 Ke3 Kc5 Ke4 Kb4 Ke5 c5 h4 b5 d4 g5 d6 e6 h5 c4 d7 c3 d5 g3 h6 g2 a6 c2 a5 Kb3 a7 Ka2 a6 b4 d6 g4 h7 b3 Qd3 g3 Nh3 g1B Qe4 g2 Nc3+ Ka1 Bg5 c1B Ne2 Be7 f8Q Qb6 d8N Ba3 d7 Qb7 f7 Nf6 Nc6 Bf2 d8N g1B Nb4 Be1 Bh4 Be3 Ng3 B3d2 Bb5 Bc3+ Qd4 Ne4 Ba4 Rg8 h8N Nd2 Qe8 Qd7 f8N Bd6+ Kf6 e5 Ndf7 e4 Ne6 Rf8 Kg7 e3 Qc8 e2 Qc5 Nc6 Qde5 Rab8 a8N Rb6 a7 Qb7 Na6 Qd7 Qed4 Ne5 Qe4 Rc6 Nb6 Ng4+ Nd4 Qe6 a8B Qd5 Bb7 Bf4 Ba8 Rf6 B8c6 Bd6 Ne6
1Q1B2qQ/K1QR3P/b1p1rbQ1/p5Q1/2Q2q1R/2n1N2N/2k3N1/2brrQ2 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 h5 f5 Bd7 g5 Bc6 Be2 Bd7 Bf3 Bc8 Bg4 hxg4 f7+ Kd7 Qe2 Kd6 Qf3 Nd7 Qd1 Ndf6 gxf6 Kd7 Kf2 Kd6 Ke3 Kc5 b4+ Kc4 d4 e5 h4 g5 d6 a5 b6 e4 b7 c6 b8Q g3 d7 g2 h5 g4 h6 g3 b5 Kb4 d5 Rh7 Kd4 e3 b6 e2 b7 e1R d6 Rg7 h7 Re3 Qe2 Kb3 Kc5 Rc3+ Qc4+ Kc2 Nh3 Rg5 Nd2 Rg6 Nf3 g1Q+ Nd4+ Kd1 Qc7 g2 Kb6 Rcg3 b8Q Bh6 f8N R6g5 f7 Qe1 f6 g1B Ne6 Re5 f8Q Ree3 f7 Qf1 Nef4 Bg7 Ng2 Nf6 Qg8 Qf4 f8Q Rg4 Nf5 Bh6 Qg6 Ba6 Rh2 Qc8 d8Q Ne4 d7 Nc3 Qdg5 Kc2 d8Q Re1+ Be3 Bg7 Rd1 Bf6 Rd7 Bf2 Bc5 Be3 Qh8 Rh4 Qdf8 Bc1 Be7 Rh6 Rh1 Qe8 Bd8 Rd1 Qff7 Qg8 Qf1 Ra7 Q7c4 Ra8 Qba7 Rc8 Qab8 Re1 Ka7 Rd1 Be7 Re8 Bd8 Re7 Nf2 Re3 Rh4 Ree1 Nh3 Bg7 Qgf7 Rhe6 Qfg6 Bf6 Nfe3#
2r2R2/1rpQQ2B/qQ1NqQ2/n1p3Q1/3bq2P/1k2B1Qr/7Q/2R1KbR1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 c4 b3 axb3 Bb7 b4 Na6 b5 Bc8 b6 Nb8 b7 Rh6 Ra5 Rh7 Ra1 Rh8 b4 d6 b5 Qd7 c5 Qd8 Nc3 Nd7 Na4 Nb6 cxb6 Qd7 Nc5 dxc5 Ra4 Qd5 Ra1 Qd8 b8Q Kf7 d4 e5 f4 g5 h4 a5 b7 a4 f6 Ke6 f5+ Kd5 h6 g4 b6 e4 f7 g3 f6 g2 h7 a3 Be3 a2 Ne2 Kc4 d5 g1Q d6 Qh2 d7 Ra6 Rc1+ Kb4 Rg1 a1R Nd4 Ra7 Nb5 Ne7 Bd3 Qa2 Nd6 Qe8 d8Q Bg7 f8R Bh3 f7 Nc6 Qg5 Qa6 Qc8 Bf6 b8Q Rb7 Qe2 Ra3 Qd7 Qe6 Qh2 Kb3 Qa8 Rg8 h8Q Bd4 Qhf6 Na5 Qae8 Bg2 Qee7 Bf1 Qff4 Rh8 Qfg3 Rg8 Rc8 Rd8 f8Q Re8 Rb8 Rd8 Qff6 Rc8 Bf4 e3 Bh7 Kb4 Ra8 e2 Be3 Rd3 Rb8 Kb3 Ra8 Ra7 b7 Rc3 b8Q+ Rb7 Kf2 e1Q+ Kf3 Qd1+ Kf2 Qc2+ Ke1 Qce4 Qa7 Rd3 Qb6+ Qb5 Qgf3 Rh8 Rc8 Rd2 Qhg3 Rh2 Qfg2 Rh3 Q2h2 Rg8 Rf8 Rh8 Rf7 Rc8 Qa7 Qbc6 Rf8 Qa6 Qb6+
BQB3nn/2NK1Q1B/2B1r2r/n3k3/1Q1pBq2/Bp3rb1/2nN2P1/3RB3 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 a4 b6 f5 Ba6 h3 Bd3 Ra3 Ba6 Rf3 Be2 Rf4 Bg4 hxg4 gxf4 Kf2 Kf7 Kf3 h5 Ke4 e5 Kd5 h4 c4 b5 a6 e4 a7 e3 c6 b4 g5 f3 c7 d6 c8B f2 g6+ Ke8 Ke6 b3 g7 d5 c5 d4 a5 e2 c6 e1N c7 h3 a6 h2 Bd2 Nf3 Ne2 Nc6 Qe1 Nge7 g8B Rh3 Nec3 Rb8 a8B Rb4 a7 Bg7 Nb5 Na5 Bh7 Ng8 Be4 Ne5 a8B Rf3 f7+ Kf8 Bfd3 f1N Bec6 Ne3 Bde4 Nc2 Qf2 Qh4 Be1 Qf4 Nd2 Ng6 Kd7 Bh8 Qf1 Kg7 f8B+ Kf7 f6 Bg7 Rg1 h1R Bd6 Rc4 Ba3 Rh6 Rh1 Bf8 Rg1 Bd6 Rh1 Kf8 f7 Kg7 Rg1 Kf6 f8Q+ Ke5 Qf7 Rb4 Q1c4 Ra4 Qb4 Nh8 Bg3 Nb7 Rd1 Ra6 Be1 Na5 Bc8b7 Qf6 c8Q Qf4 Qb8 Bc7 Bcd5 Rae6 Bdc6 Bd6 Nc7 Be7 Bb2 Bh4 Ba3 Bg3 Bc8
4Q1nK/Q2b1r1P/3Q1pQ1/2Qr1rB1/R1BQ1N2/4R2p/Q1Rb3k/1bb4q b - - 0 1 illegal: No proof kernel
q1R2QR1/2bp3N/2k4Q/1nPn4/2R1pb1R/b2BR1n1/2RR1KQB/1b4r1 b - - 0 1 legal: proof: g4 f5 f4 a5 d4 b5 a4 c5 dxc5 h6 axb5 Nc6 e4 Ne5 g5 Ng4 Nd2 Ne5 Ndf3 Nc6 Ne5 h5 Ng4 hxg4 exf5 Qc7 f6 Kd8 f5 Nb8 f7 Ra6 Ra3 Rf6 gxf6 Qb6 Bh6 Kc7 Be3 Kb7 Ra1 Qd8 Bc1 Kc7 b4 e5 h4 g5 c4 a4 h5 g3 b6+ Kb7 b5 a3 h6 a2 c6+ Ka8 c7 Kb7 c5 g2 h7 e4 Rh4 g4 Nf3 g1N Qe2 g3 Ng5 g2 Kf2 Qe7 Bf4 Qe8 Rd1 a1B Bh2 Qe5 Rd2 Bh6 f8R Nc6 f7 Qe7 f6 Qd6 Qg4 Qd5 Bd3 Nge7 Rg8 Be5 f8Q Bf4 f7 Na7 Rh3 Bg7 Re3 Bb2 Qh6 Ne2 f8Q Ba3 Rc2 Ng3 Rc4 Nac6 Qe2 Nd4 Qb2 Ka8 b7+ Ka7 b8R Qa8 Qa2 Ba6 c8R Nd5 Rb6 Bc7 Rd6 Kb7 b6 Nb5 Qc2 Nf6 Rd5 Kc6 b7 g1B+ Ke1 Nh1 b8R Bf2+ Kf1 Bg3 Qg2 Bf4 Rdd4 Ng3+ Kf2 Na7 Rb2 Nb5 Rg7 Rg8 h8R Nd6 Rd2 Nd5 Rcc2 Bc4 Rhh7 Ba2 Rdc4 Bb1 Rh8 Bc1 Nh7 Ba3 Rg4 Rg7 Rg8 Rg6 Qhh3 Nb5 Rh4 Nh5 Qgf3 Rg1 Qhg2 Ng3 Qh5 Nbc3 Qg5 Nb5 Qgh6+
1N2N1K1/1rr4R/r2Q4/3NB2B/Q1nNk1bb/p1qN2B1/Nq2PN1p/r7 b - - 0 1 legal: proof: c4 b5 b4 g5 a4 d5 cxd5 e5 axb5 e4 Ra4 e3 fxe3 Nh6 e4 Ng8 e5 Bg7 Na3 Bh6 Nb1 Bf8 h4 Qd6 g4 Na6 h5 Qd8 Ra3 Nc5 Rf3 Nd7 Rf4 gxf4 g5 Bh6 Qb3 Nf8 Qd1 Ng6 hxg6 Bf8 Kf2 Ke7 Kf3 c5 Ke4 a5 d4 h5 d6+ Ke6 b6 f3 b5 c4 d7 a4 g7 h4 g6 f2 b7 a3 b8B h3 d5+ Ke7 Kf5 f6 e6 c3 b6 c2 b7 Rh4 Bg3 Ra5 b8N Ra7 Nc3 Qe8 d8N Bd7 Na2 Bc6 Bg2 f1Q+ Nf3 Rh7 Nb7 Qe1 Bcf4 c1R Qa4 Ra6 Nc5 Bd7 Nd3 Rc7 Be5 Qc3 Nd4 Bc8 Rh2 Qb5 Bf3 Qbb2 Bh5 Rb7 Rf2 h2 d6+ Kd8 d7 Ke7 Rf4 Rc7 Rh4 Nh6+ Kf4 f5 Kg5 f4 g8N+ Kd8 Kf6 f3 g7 f2 Kg6 f1R Nf6 Ke7 Ne4 Nf5 Nef2 Ra1 Rh3 Ne3 g8N+ Kd8 Ne7 Nc4 Nd5 Be7 Bd6 Bh4 Bde5 Rh6+ Kf7 Rh7+ Kg8 Rf7 Nb6 Ke7 Bd6+ Kf6 d8Q+ Rfe7 Bde5+ Kg5 Qd6 Rh7 e7 Bg4 e8N Rb7 Nb3 Kf5 Nd5 Rhc7 Bf7 Bd8 Rh7 Bf6 Bh5 Bh4 Nh3 Ke4 Nd4 Rab6 Ndc1 Rbc6 Nd3 Ra6 Nhf2#
1n2kR1R/1Qrp2K1/1n2q2P/n1p1Qb2/5q1B/b2R2RB/2N1B2R/2R3Rn b - - 0 1 illegal: No possible last move, all moves rejected
rb2N3/B1Q3r1/1NN2n1k/2b4p/2R2N1q/Rb2N2P/1nN2Npp/1Q1RK3 b - - 0 1 illegal: Other
1Qn3Q1/1KB4b/r1Qp3k/5Nb1/2BQQQ2/3P2qR/B1qr1n2/Q1bNr2b b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c5 b4 Qc7 b6 Qc6 b5 Qc7 Ra4 Qd8 Rb4 cxb4 Ke2 Kf7 Kd3 g5 Kc4 Kg7 Kc5 a5 h4 b3 f4 b2 c4 a4 h6+ Kh7 b7 g4 f6 a3 f5 g3 f7 a2 f6 a1B b6 g2 h5 Qe8 Qg4 Ra3 Nf3 g1R Nh4 Re3 Rh3 Rg2 Qe4+ Rg6 Nc3 b1B Nd1 Nc6 b8Q e5+ Qd6 Bc3 b7 Ba2 Kb6 Be7 b8Q Bb2 f8Q Nb4 c5 Bb7 c6 Qc8 c7 Nd3 f7 Re1 Qdc6 Nf2 Bc4 Bg5 d3 Ne7 Bf4 Bc1 Qd8 Re8 f8Q Re2 Bg3 Rd2 Qff4 Ba8 Ba6 Bg8 Bc4 Kh8 h7 Kg7 Ka7 Kh6 h8Q+ Bh7 Qg8 Re6 Qd4 e4 Kb6 e3 Qde4 Ng6 Qdf6 e2 Qfd4 e1Q Ka7 Qd8 c8B Ne7 B8a6 Qc8 Ba2 Rg6 B6c4 Qe3 Qff5 Re6 Bc7 Qg3 Qff4 d6 Qa1 Re5 Kb6 Ra5 Qee6+ Ng6 Qcd5 Qd7 Qb5 Bh1 Qf3 Ra6+ Kb7 Re7 Qbe5 Qa4 Q5f5 Qc2 Qc6 Re8 Qe3 Ne7 Qed4 Nc8 Qff4 Re1 Qe8 Bg6 Qee4 Kh7 h6 Bf5 Qdd5 Bf6 Qdd4 Kh8 h7 Kg7 Nf3 Kg6 h8Q Be7 Qf8 Bg5 Nh4+ Kh5 Qd8 Bh7 Qg8 Kh6 Nf5#
5QqN/qN1QBpp1/r2RR1Q1/3QK3/n1Q1Q2b/n2b4/4qrP1/2bQN2k b - - 0 1 illegal: No proof kernel
2bnB1B1/1n2p2B/pq2br2/1BQ1BbQ1/K2b1r2/RB2PB2/N1kb3N/2N5 b - - 0 1 illegal: No proof kernel
k3R2n/1QrRN3/3r4/n1QrRQ1R/K2bN1q1/2p1p2p/b5RP/1B2R1nR b - - 0 1 illegal: No possible last move
4Q3/qpNR4/Rq1p2Qb/BnbR1b2/1R1nR3/Q5p1/1rRP2Nk/1r2RK2 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c6 b4 Ra7 bxa5 Ra8 Bb5 cxb5 a4 Kf7 f4 Kf6 h4 e5 c4 g5 a6 e4 a5 b4 a7 b3 c5 d6 c6 e3 a6 e2 h6 g4 c7 b2 h5 Bg7 h7 Nh6 Qc2 Qd7 Nf3 Rf8 h8Q Qf7 Rh4 Rd8 Nc3 b1Q Nb5 Be6 c8R Qe8 Nc7 Qe7 Qe8 Nf7 h6 Ne5 h7 Bb3 h8R Ba4 R8h7 Qb4 Bb2 Bb5 Bc3 Qc5 Ba5 Nec6 Ra4 Qee3 Rb4 Bf8 Rd7 Bh6 Rh1 Qb3 Nh4 Bd3 Ng2 Nd4 Kf2 Nbc6 Re1 g3+ Kg1 Rb8 a8Q Na7 Qb1 Nab5 a7 Be4 Qd3 Qb2 Qa3 Qa2 Qh5 Rh8 Re8 Bb1 Re4 Rbg8 Qae8 Qb6 a8R Rg5 Ra6 Rf8 Rd1 e1B Kf1 Bf2 Rde1 Ne2 Qg4 Bc5 Qgh5 Ned4 Qg4 Rf7 Qh5 Kg7 f6+ Kh7 Qg4 Kg6 Qh5+ Kf5 Qg6+ Kg4 f5+ Kh3 Ra7 Kh2 Ra6 Re7 f7 Ne6 f8R Ned4 f6 Ree5 f7 Qa1 Rg4 Bf5 Rg8 Re3 f8R Rb3 Re4 Rb2 Rf6 Rh5 Rfe6 Qa2 R4e5 Rh4 Rd5 Re4 Ree5 Re3 Re6 Reb3 R6e4 Rb1 Rgg7 R3b2 Rge7 Qa1 Rc1 Qa2 Ree1 Qa1 Rc2 Nc6 Ra8 Bh3 Qa2 Nc3 Ree4 Nd4 Qb3 Qa4 Qa3 Ncb5 Ra7 Bf5 Ra8 Qc6 Bb6 Qa6 Ba5 Qcb6 Qh7 Qaa7 Qhg6 Qb8 Ra6 Qa8 Qe5 Qaa7 Qee8
1N2N3/2R2bNQ/p2K2Nn/BB2Nr2/8/Q1b4N/pkn2PB1/1nb3Q1 b - - 0 1 legal: proof: e4 c5 b4 h5 c4 f5 exf5 d5 cxd5 Nd7 g4 Nb8 gxh5 Bd7 Qe2 Be6 Qd1 Bc8 bxc5 a6 a4 Ra7 a5 Ra8 Ra3 Qb6 axb6 Ra7 bxa7 b5 Ra4 bxa4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 a8B g5 d4+ Ke4 h4 e5 d6+ Nc6 d7 g4 d8N a3 d5 g3 d6 a2 f6 g2 f7 Be7 f8Q Bd7 h6 Rh7 h5 Bh4 Nh3 g1B Bd2 Be7 Ne6 Rf7 h7 Bh2 h8N Nh6 Ng7 Bd8 Na3 Nf5 h6 Rf6 h7 Be8 d7 Re6 Ng6 Ba5 h8Q Bg3 d8N Bc3 Qh7 Rf6 Qg4+ Bf4 Qg1 Nh6 Be2 Bd4 Ba5 Bc1 Qd6 Bc3 Bd3+ Kf3 Kd5 e4 Bb5 e3 Nc4 Ke2 Nce5+ Kd2 Qf8 Rf3 Kd6 Nb4 c6 Kc2 c7 e2 c8N e1N Ndc6 Bf7 Nb8 Rf5 Bg2 Nf3 Ke7 Ba3 Nd6 Bcb2 Qa1 Nd2 Nde8 Kc3 Qd1 Nb1 Re1 Ba1 Re2 B3b2 Qg1 Bc1 Rc2+ Kb3 Rc7 Nc2 Kd7 Bc3 Qc5 Kb2 Kd6 Bd5 Qb4+ Bb3 Qc5 Bf7 Qa3+
1B1bkB1K/Q6R/1N6/2rr4/P6n/br1Bn1Bb/BQp4B/Q1R1Rb2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 Nf6 c4 Ng8 cxd5 Qd7 Na3 Qd6 Nb1 Qd8 gxh5 c5 d4 e5 Na3 c4 Nc2 Qd7 Qf3 Qc7 Qd1 Qc5 dxc5 Bd6 Nd4 exd4 Nh3 Be7 Ng1 Bf8 Ke2 b5 Kf3 g5 Kg4 b4 h4 c3 a4 b3 f4 d3 c6 d2 h6 b2 Kh5 b1B Kg6 c2 h7 g4 d6 g3 f6 g2 c7 Nd7 a6 Bg7 h5 Bb7 c8B Nb8 d7+ Kf8 d8B Bc6 a7 Be8+ f7 Bd7 h6 Bh3 f5 Na6 Be6 Bb2 Ne2 g1B Nc3 Bf2 Bh4 Bd4 Bg3 Bg7 Bd3 Bg4 Ba2 Nc5 Nd5 Rc8 a8Q Nf6 Nb6 Ba3 Re1 Ne6 Qa7 Bh3 Bb2 Rb8 Bbe5 Ng4 Bef4 Rb7 Bb8 Bf6 Bh2 Ke7 f8B+ Ke8 Bfd6 Bd8 f6 Ne3 Bdg3 Nd4 Qc1 d1R Qb2 Rf8 h8R Nf3 h7 Rc7 Kh6 Rc5 Kg7 Nh4 Bg8 Ba2 Rc1 Bd5 Be6 Bdg2 Ba2 Bf1 Qa1 Bc7 f7+ Ke7 Qb2 Rc8 f8B+ Ke8 Rg8 Bd8 h8Q Rd5 Kh7 Rb5 Rg7 Rcc5 Kg8 Rb3 Rh7 Rd2 Qa1 Rd1 Qhb2 Rd2 Kh8 Rd1 Be4 Rdd5 Bd3
1b2r3/bKbqQ1B1/BQ2B1N1/q5rR/1Q5p/2nN2N1/2P4p/4NkNN b - - 0 1 legal: proof: d4 a5 e4 f5 exf5 c5 dxc5 a4 b3 b5 a3 b4 axb4 a3 b5 Ba6 b6 Bb5 Bg5 Bc6 Bc1 Ba4 bxa4 g5 g4 Na6 h4 Nc7 h5 Qb8 h6 Na6 Rh4 gxh4 g5 Nc7 g6 Ne6 Bb5 Qc7 Bf1 Ng7 hxg7 Qd8 Qd5 Nh6 Bd3 Ng8 Nd2 Nh6 Ke2 Rb8 Bb2 Qc8 Ngf3 Ra8 Rh1 Qc6 Bc1 Kd8 Nb1 Qc7 Ke1 Ke8 Ng1 Qc8 Bf1 Ng8 Qd1 Qd8 Ke2 e5 Ke3 Ke7 Ke4 Kf6 Kd5 h5 f4 a2 a5 a1B b7 h3 b8Q e4 a6 e3 c6 h2 c7 e2 c8N e1B a7 d6 Kc6 Qa5 Qg4 Qb4 Ba6 Bd4 Nd2 Bg3 Bb2 Be5 Ndf3 Qa3 Qb6 Qa1 Kb7 Qa3 Ne1 Qd3 Ne7 Rd8 a8N Qd2 Nc7 Qe2 Ne6 Re8 Nc5 Qb5 Ncd3 Qa5 Qe2 Bf2 Qe4 Rh7 Qeb4 Bc5 Qc7 Ba7 Qcb6 Nh6 g8B Nf7 g7 Ng5 Ba2 Ne4 Be6 Nc3 Ba1 Rh6 Bb2 Rg6 g8N+ Kg7 Nh6 Rg5 Ng4 h4 f6+ Kh7 f7 d5 f5 d4 f6 Bc7 Nf5 Kg6 Ng3 Bfd6 f8Q Bcb8 f7 Bdc7 Ngf2 Kf6 Nc1 Ke5 Qfe7 Kf4 f8N Ke3 Ncd3 Kd2 Ng6 Ke3 Nc5 d3 Ba1 d2 Ncd3+ Rc5 Bb2 d1Q Ba1 Ne4 Bg7 Nc3 Ngh3 Kd2 Rg1 Rg5 Nfh1 Qg4 Rf1 Qd4 Rf8 Qd7 Rh8 Kd1 Rh5 Kd2 Nf5 Ke2 Ng1+ Kf1 Nfg3+
1b1bnK2/B2q2Q1/1B1r1QBr/1B3P2/1NQbR3/2B2Bb1/N2q2kn/N5n1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Nh6 b4 Na6 f5 Rg8 Ra3 Bd7 Rf3 Nb8 Rf2 Rh8 Rf4 gxf4 h3 Ng8 g5 Be6 Ba3 Bf7 Bb2 Bh5 Bc1 Bg4 hxg4 Bh6 Qb3 Bg7 Qd1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 a5 f7 h5 b6 e5 b5 a4 b7 h4 g6 h3 g5 c4 g7 h2 g6 f3 b6 a3 Bb2 f2 Qb3 c3 Qc4 c2 Ne2 c1B Nd2 a2 Nb3 a1B Nc3 Na6 b8B+ Nc7 b7 Ra6 Na2 Rb6 Bc3 Bd2 Ba7 Bb2 b8N Bg5 Na1 Qd7 Nc6 Ne6 Ncb4 Rh6 Bg2 f1N Bf3 Bfe7 f8Q Bf4 Rg1 h1Q Rg4 Qg2 Qf6 Rc6 Qf7 Kc7 d6+ Kb7 Kd5 e4 Qf6 e3 Qe5 Bg3 Re4 e2 Qf6 e1B Qf7 Qd8 d7 Bb8 Qf6 Qc7 d8Q Qd2 Qdf8 Rd6+ Ke5 Bh4 d5 Nd4 Q8f7 Bd8 Qf8 Rc6+ d6 Ne2 Ke6 Ng1 Q8e7 Be1 Kf7 Qd7 Kf8 Bg3 Qee5 Nh2 Qed4 Ne7 g8B Nd5 g7 Nc7 Bf7 Ne8 g8B Ra6 Bg6 Rb6 Qb3 Rc6 Bc4 Ra6 Nbc2+ Kc6 Qg7 Rb6 Qdf6 Ra6 Qb4 Rb6 Bb5+ Kd5 Be5 Bd4 Qa4 Qe6 d7 Rd6 Qa6 B8b6 d8B Qd7 Be7 Bd8 Qa4 Rc6 Bec5 Rd6 Bcb6 Bbc7 Bg2 Bc5 Bc3 Bb8 Qb4 Bd4 Rf4+ Ngf3 Bh3 Ng1 Bg4 Rh7 Bge2 Rh5 Rh4 Rh6 Bg4 Ke4 Qc4 Kf4 Ncb4 Ke3 Bd1 Kf2 Re4 Kg2 Bf3+
r2R4/2K2n2/q1RQ2qN/Pk1N3n/b1b4b/3Q1nR1/2rRnR1R/2QB2N1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 h6 g4 Bg7 g6 Bf8 g7 Qd7 Kf2 Qd6 Ke1 Qd8 g5 Na6 g6 Rh7 Bb2 Rh8 Bf6 Nb8 Bg5 hxg5 Ke2 Kd7 Kf3 b5 Ke4 e5 a4 c5 d4 g4 h4 b4 h5 g3 a6 g2 a7 b3 f6 b2 d6 Kc6 d5+ Kb6 f7 c4 a5+ Kb5 d7 Bb7 h6 Ne7 g8R Bc6 g7 Nc8 h7 Qg5 d8Q Qh6 Ra2 Nd7 Qd3 Be7 f8R Bh4 Be2 Nf6+ Kf5 e4 Ke5 e3 d6 Qg6 d7 Nd6 Rh2 Nh5 Bd1 e2 Rf2 e1N Qe7 Rc8 a8Q Bd5 d8R Nf7+ Kd4 Qa6 Qd6 Rc5 Qc8 Be6 Qcc7 Nf3+ Ke4 Bd5+ Kf5 Bc6+ Ke6 Bd5+ Kd7 Rc6 Qd2 c3 Qd3+ Bc4 Rc8 c2 Rgd8 c1N g8R Nd4 Rg3 Nf3 Rd2 Rg8 h8N Rc5 Rf2 Ne2 Nc3+ Kb4 Qf5 b1B Qfd3 Bc2 Nd5+ Kb5 Rb2+ Bb3 Rc2 Ba4 Rd2 N7g5 Nf7 Rh8 Nh6 Nf7 Qa7 Rf8 Rc6 Re8 Nh3 g1Q Kc7 Qg2 Ng1 Rg8 Rgh3 Qg6 Rg3 Rh8 Rd7 Rb8 Rd8 Ra8 Qe3 Bcb3 Qd3+ Rc4 Qad4 Ba2 Q3a3 Rc2 Qdd3+ Bc4 Qc1
1Q3nB1/kR1b3B/2qR1RbQ/3q2Qn/b2nBNr1/Bn3P2/1b4B1/1K1B4 b - - 0 1 illegal: No possible last move
1b4b1/P3R2Q/1Nq2BBr/bN1Bn3/1qNQ1p1k/1B6/Kn2n3/Q1Br3B b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Bd6 f4 Ba3 fxe5 Bf8 g4 h5 gxh5 b5 a4 Rh7 a6 Rh6 a5 Rh8 Ra4 bxa4 h4 Ke7 d4 f5 Kd2 c5 Kc3 g5 Kb2 c4 e4 g4 e6 Kf6 d6 g3 d7 c3+ Ka2 g2 e5+ Kg7 a7 c2 h6+ Kg6 d5 f4 h7 a3 d6 Qf6 d8B Qg5 a6 Qg4 h5+ Kh6 d7 Be7 Bc4 Kg5 h6 Qh4 Nc3 Nf6 Qd4 Ne4 Nb5 Rg8 h8Q Qe1 h7 Kg4 Nf3 g1Q Bb3 Qh2 Nd2 Ng3 Nc4 Qb4 Nb6 Qg2 Re1 Bd6 e7 Kh4 e6 Rg6 e8B+ Rf6 e7 Ne2 Qg8 Nc6 h8Q+ Rh6 Qgh7 Bb8 Bef7 Ne5 Bfd5 Qg6 e8B+ Qf6 Bc7 Qc6 d8N Be6 Nb7 Bf7 N7d6 Bg8 Ka1 a2 Ndc4 Kg3 Kb2 a1B+ Ka2 Kh4 Bg6 Bc3 Bd6 Qbc5 Bf8 Ba5 Bg7 Qb4 Bh1 Bd6 Qa1 Rd8 a8B Bb8 a7 Rd1 Bd5 Nd3 Bb7 Nb2 Bc3 Nd4 Re7 Nf3 Qd4 Ne5 Bh1 Qd7 Bbd5 Qc6 B1d2 c1N+ Kb1 Ne2+ Bc1 Qcc5 Ka2 Qc6 Be1+ Kh3 Bh4 Kg4 Bf6 Kg3 Bg7 Kh4 Bf6+
k1nB2Kb/nbNQ4/1rBrPNbB/3Q1Q2/2b4q/5q2/4p2R/Q1QQ1N2 b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 h4 Nb8 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 f4 e5 fxe5 d6 e6 d5 b4 Na6 e4 Bd7 e5 Bc8 Ra3 Nb8 Re3 Nh6 Re2 Ng8 Re4 dxe4 Ke2 a5 Ke3 h5 Kf4 f5 g4 h4 c4 h3 e7 e3 g6 a4 Kg5 h2 g7 f4 Kg6 e2 c6 a3 g5 a2 c7 a1Q c5 f3 b6 f2 c6 Ra4 b5 Qad4 b7 Nh6 g8Q Ra1 b6 Bh3 c8Q Bg4 c7 Qd7 Nh3 Ra3 Qgd5 Bf3 Nd2 Rg8+ Kh7 Qc6 g6 Rd3 g7 Nf7 Qf5 Be4 c8Q Nd6 Bg2 f1B Ng5 Rb3 Bf3 Bg2 Nf1 Rb1 Qc7 Nc8 Ne6 Bd3 Bf4 Bc4 Bh6 Rb5 Be4 Bf3 Qa1 Bh5 Qcd6 Rb2 Qda3 Rb3 Q3c1 Rb5 Bg2 Rb2 Qdd1 Qf3 Qd5 Nc6 b8B Bf7 b7 N6a7 Bc7 Rb6 b8Q Rd6 Qbb2 Kd7 Qb3 Be8 Qdd1 Kc6 Ba5 Bh5 Nc7 Bf7 e8N Qh4 Qba4+ Kb7 Qad7 Be7 e6 Bf6 Bb6 Rf8 g8Q Bh8 Nf6 Rd8 Ba5 Rb6 Qgg5 Be8 Kg8 Bg6+ Qe8 Rdd6 Qd7 Kb8 Qgd2 Qd3 Bc6 Qf3 Rg1 h1B Rg2 Qff4 Rh2 Bg2 Bb5 Bb7 Qdd5 Qf3 Bc6 Rb4 Na6+ Ka8 Bd8 Rb6 Nc7+
5n2/1kNN1BK1/pr3rb1/Q2B2Q1/2NbQ3/Bb3nN1/N2Pr1R1/Nn4n1 b - - 0 1 illegal: No possible last move, all moves rejected
N5n1/B1n1b1Q1/NRN2pP1/K4R1N/1Qqb2k1/3rr3/N2Qp3/q3qR1N b - - 0 1 legal: proof: e4 d5 f4 Kd7 c4 b5 cxd5 g5 fxg5 b4 d6 Ke6 d7 b3 axb3 Bg7 b4 Kd6 b5 Bf8 d4 Ke6 g4 h5 d5+ Ke5 g6 Kf6 d6 Ba6 g5+ Kg7 Bh3 Bb7 Bg4 Bd5 exd5 hxg4 Kd2 e5 Kc3 a5 h4 c5 b4 g3 b6 c4 b7 e4 b5 a4 Kb4 a3 h5 e3 b6 a2 Qg4 e2 Nc3 g2 Be3 Be7 h6+ Kf8 h7 Kg7 Nh3 g1B Rf1 a1Q Rf5 Qc1 Nf2 Qc2 Na2 Qc7 d8Q Bf6 d7 c3 d6 Bh2 Rf1 Be7 Nh1 Na6+ Ka5 Nh6 b8N Bf6 Qb4 Qc6 b7 Qb2 Ba7 Nc7 Na6 c2 b8R c1Q Rb6 Re8 h8N Kg8 g7 Kh7 Ng6 Q6c4 Nf4 Be7 Nh5 Ng8 g6+ Kh6 Rd1 Be5 Rdf1 Nf6 g8Q Qba1 Rc6 Bb2 Rb6 Qe1 Qh8+ Nh7 Qd4 Nf6 Qdc3 Ng8 Qd2+ Bg5 Qf6 Re3 d8N Bd4 Ne6 Rd8 Qe5 Be7 d7 Ra8 d8N f6 Nc6 Rd8 Qh2 Be5 Qg2 Rd3 Qd5 Bc3 Qd7 Bd4 R5f2 Nd5 Nec7 Kg5 Na8 Nc7 Rf5+ Kg4 Qe6 Qf2 Qf7 Qfe1 Qg7
1bq1kr2/b1p1r1r1/Bn2Q3/B2P1R1R/q3QQ2/6Bn/2NpB2K/R1B4B b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 Rh6 gxh5 Rh7 d6 Rh8 e4 Bb7 d4 Nf6 d5 Na6 Nc3 Ng8 Nce2 Bc8 Nd4 exd4 e5 Bf5 f3 Be4 fxe4 Nb8 Kf2 f5 Kg2 a5 h4 g5 b4 a4 d7+ Ke7 h6 a3 h5 g4 b6 a2 e6 g3 e5 f4 h7 d3 b5 d2 b7 Bg7 b6 Ra3 h6 Ra6 Qa4 Qf8 d8R Ra5 Be2 Rb5 Rh5 Nd7 b8Q Ngf6 b7 Qg8 Qc8 Rb3 b8Q Rc3 Qe4 Nb6 Nf3 Rc6 Rf8 Rc5 Ne1 Ra5 Nc2 Ng4 Rff5 Nf2 Kg1 g2 Kh2 g1R Qa8 Rb5 Qaa4 f3 Qca6 Ke8 e7 Nh3 Qf4 f2 Qae4 Na4 Qe6 f1Q Bf3 Qf8 Bh1 Rg8 h8B Rb4 h7 Nb6 Qg2 Bh6 Qge4 Qd1 Bg7 Rb3 h8B Re3 Bf6 R1g7 Bh4 Qf6 Bg3 Rf8 Qg8 Qe6 Qf7+ Kd7 e8B+ Kd8 Qg6 Qc8 e6 Bg5 Qf7 Be7 Qg6 Bc5 Bb5 Qg4 Be2 Ke7 Qgh6 Ke8 e7 Qh4 Rb1 a1B Qhe6 Bad4 Ra1 Qg4 Ba6 Qd1 Nb4 Qa4 Nc2 Na8 Be2 Ba7 Ba6 Bb8 Be2 Bda7 Ba6 Rh7 Bc3 Nb6 Ba5 Re1 Q6e5 Kd7 e8B+ Kd8 Bd7 Rg7 Bdb5 Re3 Be2 Kd7 Qb4 Kd8 Qf6+ Ree7 Qbe4 Ke8 Qfe6
2b2Q1n/P1q5/2NQQ3/QNN1bp1b/K2n1k1q/1p5q/Q5RQ/2r1B1BB b - - 0 1 legal: proof: g4 a5 a4 b5 c4 g5 f4 d5 cxd5 e5 fxe5 Bd6 b4 Qf6 bxa5 Kd7 h4 Ra6 h5 Qd8 Ra3 Be7 Rf3 Bf8 Rf4 gxf4 g5 Rg6 hxg6 Ke8 d4 Kd7 Kd2 f5 Kc3 h5 Kb3 c5 e4 f3 d6 Ke6 g7 f2 a6 h4 d7 b4 a7 h3 a8Q h2 a5 c4+ Ka4 c3 d5+ Kf7 g6+ Ke7 d6+ Ke6 a6 c2 Nf3 Ne7 Be3 c1Q Ne1 Rh3 Nc3 Qc7 d8B Qb6 g8Q+ Kd7 e6+ Ke8 e5 Qb7 g7 Rh4 Nb5 Nec6 e7 Kd7 Qh8 Ke6 e8Q+ Qe7 d7 Qd2 Rg1 h1Q Nd3 Qb2 Bg2 f1B Ba5 Re4 Qh2 Nd8 g8Q+ Nf7 a7 Qf2 Qd8 Qeh4 Bd4 Nc6 Nc5+ Kd5 e6 Qff4 e7 Be2 e8Q Bd6 Qb6 Bb8 d8N Be5 Qgf8 b3 Be1 Qc1 Qa5 Bh5 Bf3 Qcf4 Rg3 Nh8 Qde2 Qf1 Qb8 Qfh3 Bh1 Qc1 Qa2 Qc2 Ka3 Qc3 Bg1 Nd4 Ka4 Qc2 Rf3 Re3 Nc6 Rc3 Nd3 Ke4 Qbd6 Qc1 Qeg6 Qcf4 Qge6 Rc1 Rg3+ Nf3 Rg2 Nd4 Nc5+ Kf3 Qde7 Qfg3 Q7d6 Qg7 Rg3+ Kf4 Qdd5 Qf7 Qdd6 Qc7 Rg2+
nKQQB3/2pqQ1bN/1N4p1/2n1B1n1/2b3P1/2BNn2B/R3p1Bk/6nB b - - 0 1 legal: proof: d4 e5 dxe5 b5 h4 a5 a4 f5 axb5 g6 c4 Na6 h5 Ne7 h6 Rg8 Ra4 Rg7 hxg7 Ng8 Ra1 Ba3 Nd2 Bb7 Rb1 Qg5 Rh6 Ke7 Rh1 Nh6 Ndf3 Rh8 Nh3 Ng8 Nhg1 Bc8 Ra1 Ke8 Nd2 Qd8 Nb1 Bf8 b4 h5 b6 h4 b5 Rh5 b7 Rg5 b6 Be7 Qc2 Bc5 Qd1 Bf8 e4 Nf6 e6 Nd5 Ra4 Nf6 Rb4 Ng8 e5 Rg3 Ra4 Rb3 Rb4 Rb2 Ra4 Rb5 cxb5 Ba3 Rg4 Bf8 Re4 fxe4 Ke2 Ke7 Ke3 d5 Kd4 e3 b8Q h3 f4 e2 g4 h2 f5 a4 b7 a3 b6 a2 f6+ Ke8 e7 Kf7 e8B+ Ke6 f7 a1N Nd2 Qd7 Nc4 Nb4 Nh3 Nf6 g8B Qe7 Bc6 Bd7 Nf2 Bc8 Bh3 Bh6 Bb2 Bc1 Nd3 Bh6 Bc3 Qe8 Kc5 d4 Bcg2 Nbd5 f8B+ Qf7 Kc6 Ne4 Bd6 Bg7 Qa7 Ng5 b8N Ba6 b7 Nb3 Qc5 Nb6 Nd7 Na8 b8Q Bb5+ Kb7 Ba6+ Ka7 Bb5 Rg1 h1N Nf6 Nf2 Nb6 Bc4 Qa3 Nc5 Nh7 Nfe4 Qf8 Nf3 Kb8 Neg5 Rh1 Ng1 Qd2 N1f3 Ra1 Ng1 Qb4 Nb3 Ra2 Nc5 Nb2 d3 Qd1 d2 Nd3 Bh8 Qd8 Bf6 Qda4 d1N Qa6 Bg7 Bh1 Ne3 Qac8+ Nd7+ Kb7 N5f3 Na4 Kd5 e6 Ke4 e7 Qe6 Bde5 Qf7 Qd6 Nc5+ Kb8 Qe6 e8B Qd7 Nc1 Bh6 Q6e7 Bg7 Bf6+ Kf4 Nd3+ Kg3 Nb6 Kh2 Bd5 Ng5 Bdg2 Qf5 Bfd4 Qd7 Be5+
nk4QB/1qR2Bb1/3KpNp1/1bRBB1Rp/3QP2r/1b3B2/1B1p4/q2Q4 b - - 0 1 legal: proof: g4 a5 h4 f5 gxf5 b5 a4 g6 axb5 Ra6 h5 Rf6 h6 Rf7 Nc3 Rg7 hxg7 Bb7 Nb1 Bc8 d4 c6 b4 Bb7 b6 Ba6 Nc3 Bc8 b5 c5 Nd5 Kf7 Nb4 cxb4 Rh2 Ke8 Rh3 Qc7 Rh1 Qd8 c4 Nc6 c5 Qc7 d5 Qd8 dxc6 Bb7 c7 Bc8 Kd2 d5 Kd3 Kd7 Kd4 h5 Ke5 b3 e4 e6 f4 d4 c6+ Ke8 b7 d3 b8Q d2 b6 b2 f6 b1B f7+ Ke7 b7 a4 f5 a3 Bg2 a2 Qa7 Qe8 b8B Bd3 Bf3 Nf6 g8B Bda6 Bb2 Nh7 Rc1 a1Q Qd4 Ng5 Nh3 Bd7 c8B Kd8 c7+ Ke7 Rc5 Bdb5 Rg1 Qb1 Nf4 Qc6 Bb7 Nh7 c8R Nf6 Rg5 Ne8 Nd5+ Kd7 f6 Bg7 f8Q Qa1 Bf7 Nc7 Qg8 Na8 Bc7 Ba4 Bd6 Qb6 Bb8 B6b5 R8c6 Bf8 Rc7+ Kd8 Bc6 Bb3 Bb7 Be8 Bc6 Bg7 Kd6 Qb5 Ne3 Rh7 Bd5 Qb7 Ng4 Rh8 Qh7 Rf8 Qg8 Bb5 Be8 Qc1 f7 Qb1 Nf6 Qa1 Bd7 Re8 f8B Re7 Be8 Rf7 Ng4 Rf4 Nf6 Rh4 Bf7 Bc6 Re7 Kc8 Bc7 Bh6 Bg7+ Be8 Bh8 Bg7 Ba5+ Kb8 Rec7 Qc8 Bac3 Bb5 Qc4 Qa7 Be5 Qa1 Qh7 Qb7 Qd4 Bd7 Qg8+ Be8 Qh7 Bb5 Qg8+
1K1BbN1n/2B1b3/1nB4p/3qR1qB/1Q1R3P/6Qq/1B2rB1n/krQ1qR2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 Kd7 f6 Ke8 f5 Kd7 Nc3 Ke8 Nce2 Nd7 Nf4 gxf4 Ra6 Nb8 Ra5 Ba6 Ra1 Bc8 Ke2 Kf7 Kf3 e5 Ke4 c5 h4 a5 g4 c4 b4 f3 d4 h6 d6 a4 Kd5 f2 d7 a3 g5 a2 b6 e4 b7 e3 b5 c3 b6 c2 Bg2 f1N Ne2 Bg7 Kd6 Nd2 g6+ Kf8 d5 Ra7 f7 Qe7+ Kc7 Ra5 d6 Bf6 Re1 Kg7 Bc6 Qe5 d8R Ne7 Ba3 c1Q Nf4 Qd5 d7 e2 Bc5 Re8 Bf2 Qa3 Qc1 Qh3 Rf1 Bg5 f8B+ Kf6 g7 Ke5 g8B e1Q f6 Rb5 f7 Rb1 Ne6 Ng6 Ba3 Nf3 f8Q Nh2 Bf7 Nh8 Qb4 Be7 Bh5 Qed2 Nf8 Qg5 Qbd2 Ke4 Qb4+ Kd3 Re1 Qd2 Re5 Qg5 Qcf4 Kc2 Qe3 Rb2 Rf1 a1Q Qee1 Qad1 Qec3+ Kb1 Qc1+ Ka2 Bb5 Nc6 b8Q Qe1 b7 Na5 Bc6 Nc4 Qa8 Qde6 b8B Qd5 Qa7 Rb1 Qae3 Ba6 Qg3 Bb5 Kc8 Ka1 Bc7 Nb6+ Kb8 Bf6 Re4 Re5 Rd4 Be7 Re8 Re2 d8B Bd6 Re5 Be7 Bb7 Bd7 Bc6 Be8 Bb2+
1R1RnRn1/2N4Q/Q4p2/5b1q/K3QbB1/b2b2rq/kQ1QQP1N/nr1N4 b - - 0 1 illegal: No possible last move, all moves rejected
r2n2QN/2Q1QN2/pbp1N1R1/2Pr2Rb/QQqn4/n1q5/1B2k3/Q3q1RK b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Bh3 Be7 fxg5 Nf6 g6 Bf8 g5 Ng8 Bg4 hxg4 Kf2 Ke7 Kg2 Ke6 c4 Kf5 b4 Ke4 h4 d5 b6 f5 b5 f4 g7 d4 e6 d3 g6 g3 e7 d2 e8Q+ Kd4 e4 Ke3 h5 a6 e5 Ba3 b7 Bc5 b6 Bg4 h6 Kd3 h7 Ke3 e6 Qc8 e7 Bf5 Rh5 f3+ Kh1 f2 Na3 f1Q Nc2+ Kd3 Rg5 Nh6 g8Q Bf2 g7 Nc6 b8Q Bg6 b7 Nf7 Bb2 Bh5 Nd4 Nfd8 Ne6 Nd4 Qea4 c6 Qc1 d1N e8Q Ne3 Qe7 Nec2 Qbc7 Na3 b8Q Qd7 Qbb4 g2+ Kh2 Qe8 Nf3 Ke2 Ne5 Qe1 Qb1 Qc3 Nf7 Qd7 Qa2 Qd5 Rf1 Qc5 Qa1 Be3 Rf6 Qb5 Rfg6 g1Q+ Kh3 Qge1 Kg2 Bg1 Kh1 Qc5 Qge8 Rg8 h8N Rf8 g8R Qb5 Nd6 Rf5 Ndf7 Rd5 R8g7 Nf5 Qg8 Bb6+ Rg1 Nd4 c5 Qbd3 Rg5 Qdc4 R7g6
3q1n2/2r2BKB/b3Q2B/1B5p/3NNbp1/2nbk1bP/1Br3b1/QNQ3RB b - - 0 1 legal: proof: d4 b5 g4 c5 dxc5 e5 b4 f5 gxf5 Qg5 a4 Qe7 axb5 Qf6 Ra6 Qg5 Rd6 Qd8 Rd4 exd4 Kd2 Ke7 Kd3 Kf6 Ke4 a5 f4 h5 c4 g5 b6 a4 b5 a3 h3 g4 c6 d3 c7 d6 b7 a2 c5 a1B b6 d2 c6 Bd7 c8B Na6 b8N Bh6 b7 Rh7 c7 Bb5 Bb2+ Kf7 f6 Kg6 f7 d5+ Ke5 d4 f8Q d3 e4 Bc6 f5+ Kg5 f6 Rg7 f7 Qe8+ Qe7+ Nf6 f8B Rh7 Bf5 Qf7 c8B Qe8 Qe6 Qd8 Nd7 Nc7 b8Q Nfd5 Qc1 Nc3 Nc5 Ra2 Qa8 Bb7 Qa7 Ba6 Ne2 Rf7 Bh7 Rd7 Ba3 Rc2 Bb7 Rg7 Nd4 Re7 Qe1 d1B Rg1 d2 Bb2 Bde2 Qc1 Bed3 Bc6 Rf7 Bg2 Rd7 Bh1 Re7 Bb5 Rd7 Qf1 d1B Qe1 Bf3 Qc1+ Kh4 Kf5 Bg2 Kg6 Bf4 Bh6 Kg3 Qa8 Kf2 Qa7 Rd6 Kg7 Rc6 e5 Bg3 Qd6 Bf4 e6 Bg3 e7 Ne6+ Kf6 Nf8 Kg7 Bf4 e8B Rc7+ Bf7 Bg3 Qe6 Bf4 Qa8 Bg3 Qg5 Bf4 Ne4+ Ke3 Ba3 Bb2 Qc5 Bc1 Bb2 Bd2 Qa3 Be1 Qa1 Bh4 Qad5 Bg3 Qb3 Rd2 Qd1 Rc2 Qc1+
knQ4N/2n1p3/1pR2N1Q/1P3B2/bR1Q4/p1q3b1/1QqRr1Qr/n2NQK2 b - - 0 1 illegal: No proof kernel
1n6/rrBB1NB1/B1n1BQbP/6b1/1Rn5/5K1N/1Nqq1nNr/k4Q1N b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 fxg5 h6 g6 h5 b4 Bb7 g4 Bc6 g5 Bd7 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 d4 Kd6 h4 e5 h5 c5 g7 a5 h6 g3 g6 a4 f6 c4 b6 a3 b7 e4 b5 e3 b6 g2 f7 a2 Nh3 a1Q Na3 g1R Bb2 c3 Kf3 c2 Ba6 c1N Nc4+ Ke7 d6+ Kf6 d7 e2 d5+ Kf5 d6 Qa5 Qf1 Qc7 d8Q Qac5 d7 Bd6 f8N Ne7 g8B Nd3 g7 Qa5 Ng6 Ra7 Ngf4 Rh7 Ng2 Nf2 Bd4 Bf4 Nb2 Bg5 Be6+ Kg6 g8B Qd2 Rh2 Rh1 Bg7 Qcc2 Bg4 Nec6 B8e6 Qd4 Qf8 Qdd2 d8N Bd7 Nf7 e1N+ Kg3 Ned3 Kf3 Be8 Bd7 Ndb4 Bge6 Na5 Qe7 Nc4 Qd6 N8c6 b8B Rb7 Bc7 Nb8 Qe5 Ra7 b7 N4c6 Nd6 Bf7 Nf5 Be8 Ng3 Bf7 Ng1 Be8 Rh4 Rh2 Nh1 Bf7 Bf8 Be8 Qd6 Kf6 Nh3 Bg6 Rg4 Ne3 Rb4 Nc4 Ba5 Rg7 Qe7+ Ke5 Bc7+ Kd4 Qd6+ Kc3 Qe7 Qd4 Qf6 Re7 Bg7 Rf7 Ra4 Kb3 Rb4+ Ka2 Bf5 Re7 Bde6 Nd7 b8N Qdd2 Bg4 Na5 Nc6 Nb8 Ne5 Nac6 Nf7 Rd7 Bg3 Rdb7 Be5 Qe1 Bd7 Ka1 Bge6 Qec1 Bc7 Q1d1+ Qe2 Qdd2 Qf1+
2Q1qNNN/R3n2n/2R1nR2/1nP2b1N/1Q1bnN1k/3B1K2/2R2Rn1/2b4r b - - 0 1 legal: proof: a4 a5 g4 f5 gxf5 c5 d4 b5 axb5 h6 dxc5 Ba6 e4 Bc8 f4 Qb6 e5 Kd8 f6 Qc7 f5 Ra6 Bg5 hxg5 f7 Rf6 exf6 Qb6 Ra2 Kc7 Ra3 Kb7 Ra2 Qd8 Ra1 Kc7 Kf2 d5 c4 Kd7 h4 e5 b4 e4 b6 d4 b5 a4 b7 e3+ Ke2 a3 h5 g4 b6 g5 h6 g3 h7 d3+ Kf3 g2 Rh4 e2 Rg4 d2 Qc1 d1N Nc3 a2 Nh3 g1B Nd5 Qe8 Ne7 Bh6 f8R Nc3 f7 Nf6 Ng8 Nc6 b8Q Bd4 b7 Nce4 Nf4 Ne7 c6+ Kd8 Rg2 e1N+ Ke2 g4 c7+ Kd7 c5 g3 Qc4 Bg5 Qb4 Bh6 Rf2 g2 Nh5 Bhe3 Rc1 a1N Rc2 Bc1 Qa8 Nb3 b8R Bc3 Rb7 Bd4 Ra7 g1N+ Kd1 Ng2 Bd3 Nh3 Ke2 Nhf4+ Kf3 Ne6 Qab7 Na5 Qb8 Nb7 Qa8 Ng4 f6 Nbd6 Qab8 Nb5 Qa8 Nd8 Qb7 Ke6 Qb8 Bb7 c8R Kf5 Rc6 Kg5 Qc8 Kh4 Nh6 Rg8 h8N Rg7 Ng8 Rh7 Qa3 Ne6 Qb4 Qd7 Re8 Ba8 f8N Qd8 f7 Ngf6 Qe1 Qd7 Qb4 Rh6 Rd8 Qe8 Rdd6 Nh7 Nfg6+ Kh3 Ngf4+ Kh4 f8N Bb7 Qd8 Bc8 Qd7 Ng7 Ra3 Kg5 Nhf6 Rh1 N6h5 Kh4 Qf5 Be6 Ra7 Bd7 Rf6 Be6 Qe5 Bf5 Qb8 Ne6 Qc8
1NNRk1qR/N1K5/P1N3b1/4B3/1pQ1Qnrb/Q2q1N2/4r3/1QnQqr2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 g4 h5 f4 g6 g5 Bg7 Be2 Bh6 fxg6 Bf8 Bg4 hxg4 f5 Qd7 Qb3 Qd6 Qd1 Qd8 Ke2 c5 Kd3 e5 Ke4 b5 d4 g3 h4 g2 a4 c4 a6 c3 a5 c2 g7 Bd7 f6 Bc8 h5 Bc5 h6 Bb4 d6 Rh7 Kd5 e4 d7+ Kf7 a7 e3 a6 e2 Na3 e1R Bf4 c1Q Be5 Be7 Nf3 Qf8 d8N+ Ke8 g6 g1Q f7+ Kd7 Nc6 Qe8 f8Q Rh8 h7 Nh6 g8N Qc3 g7 Bb4 Nge7 Re2 g8Q Qge1 Qb1 Bb7 Nc8 Be7 Ra2 Bd8 Rd2 Nf5 Qg4 Rg8 h8Q Bh4 Qhh5 Qd3 Kc5 Bg5 Kb6 Bh4 d5 b4 d6 Rg6 Qc4 Ne3 Nb5 Ng2 Qff4 Rg5 Qe3 Qg8 Qhg4+ Ke8 Kc7 Nd7 Nb8 Nc5 d7+ Kf8 d8N Nf4 Qd7 Be4 Ndc6 Nb3 Rd1 Rg4 Qdd5 Be7 Rh8 Ke8 Qec1 Bf5 Qa3 Bg6 Qdd4 Nc1 Qg1 Qf2 Rd2 Bh4 Qd1 Qde3 Rd6 Qe1 Rd5 Qd3 Rd4 Kf8 Rd8+ Be8 Ng5 Re4 Rd4 Qb3 N8e7 Re2 Rd3 Bg6 Nd7+ Ke8 Rd4 Nfd3 Rd5 Rd8 Ndb8 Rd6 Nc8 Rf6 Rd7 Rf1 Nf3 Kf8 Rd5 Nf4 Rd8+ Be8 a8Q Qbc3 Qa7 Qd3 Qe4 Kf7 Qad4 Kf8 Nba7 Kf7 Qdc3 Kf8 Rd4 Bg6 Qc4 Ke8 Rd8+
4NrNb/1R2B2R/N1Nnqb1N/Rr4P1/4r1R1/K3QpQb/2r1k1n1/3R4 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b4 g5 hxg5 a6 e3 Qd7 b6 Kd8 b5 Ke8 b7 Qd6 b6 Qd8 Bb5+ axb5 d4 Kd7 Kd2 c5 Kc2 h5 Kb3 f5 g4 f4 e6+ Kd6 g6 f3 g5 b4 g7 h4 e4 h3 e7 h2 e8R Qd7 Ba3 Rh7 Qe2 Qe7 Nh3 Nc6 b8R Bf5 b7 Nd8 Nc3 Rh4 Na2 Nh6 g8N Bg7 Qe3 Ne6 Nf2 Nf7 Ng4 Bf6 N4h6 c4+ Kb2 Nf4 e5+ Kc7 e6 Kb6 d6 Kb5 d7 b3 d8N Ng2 Bb4 Bh3 Nc6 Nd6 Ba3 Rf4 Nab4 Re4 Na6 Qd7 e7 Qe6 Bb4 c3+ Ka3 Kc4 d5 b2 Rf8 b1R e8N Bh8 Rf4 c2 Rg4 Bf6 Rd1 h1R Bc5 Rh2 Ra2 Nc8 d6 Rb5 d7 Nd6 d8R Bh8 Rd7 c1B+ Ka4 Bf6 Rh7 Bcb2 Raa1 Bbe5 Ka3 Bh8 Bb4 Bef6 Bc5 Nf7 Be7 Nd6 Rc8 Rb8 Rc7 Rd8 b8Q Rc8 Ng7 Rd8 Rb7 Rf8 Qf4 Kc3 Ne8 Kc2 Qa7 Kc3 Qg3 Kc2 Rdc1+ Kd3 Rc5 Ke2 Rd1 Rbb4 Ra5 Rb5 Qb6 Rh1 Rd4 Rc1 Rd1 Rc2 Qe3+
2b3BN/B3rN2/1KQ2b2/1NP3QB/3B2Rp/rq1r2rr/2N2B2/3kq1Nn b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 h4 Kf7 b4 Qb6 g4 Qc6 f5 Qc7 h5 Nc6 Ra3 Qd8 Rf3 Ne5 Rf4 gxf4 g5 Ng6 hxg6+ Ke8 Kd2 h5 Kc3 e5 Kc4 a5 f7+ Ke7 b6 d5+ Kb5 a4 c4 d4 g7 e4 f6+ Ke6 g6 Kf5 b7 f3 b8Q Kg4 c6 a3 c7 a2 c5 a1R Kb6 h4 b5 d3 Na3 e3 Qb7 d2 Nc2 e2 Qc6 e1Q Be2 Bd6 f8B Kg3 f7 f2 Bh5 f1R Qg4+ Kf2 Qg5 Nh6 g8B d1R g7 Ng4 Be3+ Kg3 Bd4 Be5 Bd6 Qe7 f8N Rd3 Ng6 Rh7 Nh8 Rff3 Rh3+ Kg2 Rg3+ Kf1 Rg2 Bf6 Bg3 Q1e6 Bgf2 Rh3 Rg3 Qb3 Rg2 Bb7 c8N R8a3 Na7 Bc8 Rg3 Qe1 Rg2 Ne3 Rg4 Rad1 Bgf7 Rb1 g8N Nf5 Nh6 Ng3 Bg8 Nh1 N6f7 Rdg3 Kc7 Rd1 b6 Rg7 b7 Rdd3 b8B Rh7 Nb5 Rg7 Nf3 Ke2 Kb6 Kd1 Ng1 Rh7 Ba7 Rg7 Nd8 Re7 Ndf7
N4nK1/n2rQ1pn/bbQ1BP2/R2Qq1qR/2R5/8/R2Q1N2/R2nkn1Q b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Na5 axb3 Nc6 b4 Nb8 b5 Ba6 Nf3 Bb7 Ng1 Bc8 b3 h6 Ba3 a5 Bb2 Ra6 Bd4 Re6+ Be3 Re5 Nf3 Na6 Ng1 Rf5 gxf5 Nb8 Bg5 hxg5 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 d4 Ke3 h4 Kf2 d6 c5 Kd5 e5 d7 a4 Ke6 e4 h5 g4 b6 c4 h6 a3 d5 a2 d6 e3 b4 g3 b7 g2 h7 c3 b5 c2 b6 c1N Rh4 e2 Rc4 e1N Nc3 Be7 f8R Na6 Kf7 Nc7 b8Q Nb5 b7 Qc7 d8Q Nc2 d7 Qh2 Qbd6 Ne2 b8R Na7 Rb5 Nc6 Ra5 Qe5 Na4 Nc2d4 Nb6 Ng3 Na8 Na7 Qc6 Bc5 Bd3 Ba6 Nh3+ Ke3 Re8 g1Q Nf2 Bb6 Re6 Qg2 Qh1 Kd2 Qe7 Qgd5 d8Q Nf1 Qdd6 Qg2 Qdd5 Qg5 Bc2 Ke2 Bb3 Kd2 Qb4+ Ke2 Re7 Ne6 Qbd6 Nf8 Rc7 Ne7 Qd8 Rg8 h8R Neg6 Rh5 Nh7 Qe7 Rb8 Rb7 Ngf8 Kg8 Re8 f7 Rd8 f6 Rd7 Qd8 Be3 Rbb4 Bd4 Rba4 Bb6 Rac1 a1N Ra2+ Nc2 Rca1 Qb2 Qe7+ Nce3 Qed6 Nd1 Qf4 Ng6 f8Q Ke1 Qe7+ Qbe5 Bc2 Bb5 Bf5 Ba6 Be6 Ngf8 Qfd2+
Bqk1B1b1/8/1Rq2b2/2QQ4/2pQrr2/rbBbQB1n/B1NP4/K3R2Q b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Na6 Na3 Bc8 Nc2 Nb8 h4 Ne7 g4 Qd7 h5 Nbc6 Ne3 Ng8 Ng2 Nce7 Nf4 gxf4 g5 Ng6 hxg6 Qd8 e4 Kd7 b4 a5 d6 h5 e6+ Ke8 b6 f5 b7 c5 b8Q a4 d7+ Ke7 b5 f3 g7 h4 g6 f4 b6 a3 b7 a2 e5 h3 Qa7 h2 b8Q Rh7 Ne2 Nf6 g8Q Qe8 g7 Kd8 Bg2 Nd5 Qbb3 Rh6 Qe3 Rh4 Rb1 a1Q Rb6 Be7 Nd4 Qa2 Nc2 Qb1 Bb2 Bf6 Bc3 f2+ Ke2 f1R Kd3 Rf2 Re1 h1B Bf3 Bb7 e7+ Kc7 Bg4 f3 e6 Nf4+ Kc4 Qc1 Kb3 Qb8 Ka2 Nh3 e8B Re2 e7 f2 Qa5 f1B Bf3 Rf4 Qd5 Bc6 g8B Ba4 Bg6 c4 e8B Qa3+ Kb1 Qd6 Ka1 Qc6 Qac5 Ra6 B8h7 Ra5 Bge4 Bb3+ Na3 Ra7 Bb1 Kd8 Ba2 Ra6 Nc2 Ra3 Bhe4 Bhg2 Qed4 Re3 Qg5 Bd3 Bd5 Ree4 Qg3 Qcc7 Ba8 Bh1 Qgg1 Qc6 Qe2 Bg2 Qh1 Kc7 Qee3 Kd8 Bd1 Bf3 Be2 Bg4 Bd1 Be6 Bf3 Bg8 Qb5 Ke7 d8Q+ Ke6 Q8d5+ Ke7 Bd7 Kd8 Be8+ Kc8 Qbc5
1kB4Q/pn1b2P1/2r3Rb/1q1RR3/1qQ1q2r/3pr3/N1Q1Q3/1RR1BKQ1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Bh6 f6 Qd8 f5 Bf8 g4 Nc6 h4 Kf7 h5 Na5 Nc3 Nc6 Nce2 Ke8 Nf4 gxf4 g5 Ne5 Kf2 Ng6 hxg6 Nh6 Ke1 Ng8 b4 d5 c4 Kd7 b6 e5 b7 Kc7 b8R h5 b5 f3 g7 e4 c6 d4 f7 d3 f6 e3 g6 e2 b6+ Kd6 b7 Kc7 c5 h4 Ra5 h3 Bd2 h2 Bh3 Be7 f8R Nh6 g8R Qd4 f7 Qc3 Re8 Qc2 f8Q Qa2 Qg7 Rh7 Bd7 Bf8 Re5 Qf7 Kf2 e1R Ne2 Qb3 Nc3 Qb2 Qe2 Rh8 Na2 Rc1 Be1 Qb4 Kf1 Nf5 Rd5 Rh5 Qd4 Bh6 Qg1 f2 Be6 Bd7 Re5 Be8 Bc8 Bd7 Rb5 Qa5 Rb1 Rc3 g7 Qb5 Rd8 Rh4 Rc1 Be6 Rd6 Bd7 Rg6 Rcc4 Rb1 Rce4 Rc1 Nd6 Rd5 Re3 Rb1 Kd8 c7+ Ke7 c6 Ke8 Qgg4 Ke7 Rg1 h1Q Rc1 Qb4 Qc4 Qe4 R1g5 Ke8 Rge5+ Be6 Ra5 Qd4 Bd7+ Ke7 c8Q Qd5 Rb1 Rhh3 c7 Ref3 Qh8 Qb2 Qc6 Rh4 Rc8 Re3 Qh5 Qc4 Qh1 Qe4 b8Q Qbd4 Qb2 Nb7 Qd2 Kd6 Qg1 Qa4 Rac5 Qb5 Rd8 Rc8 Rcc1 Qed5 Qf3 Qdc6 Kg2 f1Q+ Kg3 Qh3+ Kf2 Qg4 Kf1 Qgb4 Qfe2 Qce4 Qc2 Ra8 Rgg5 Bf5 c8Q Bg4 Q8c3 Rc8 Q3b3 Rc6 Rg6+ Kc7 Bc8 Kb8 Rdd5 Bd7 Qbc4
Q1Q3n1/BRRQ2Q1/Bb1P1b2/3bN2r/K1Br3p/2Bp2Q1/1B1b2k1/6nn b - - 0 1 illegal: No possible last move, all moves rejected
b2Q3n/QR2q2q/N3k1B1/1Q2p3/2r1rN2/3pN2b/1pN1PQb1/1K2NR1Q b - - 0 1 legal: proof: h4 g5 b4 c5 d4 a5 bxa5 e6 dxc5 Qc7 g4 Bh6 f4 Qb6 f5 Kd8 f6 Kc7 Bf4+ gxf4 g5 Bg7 Kd2 Kc6 Ke1 Qd8 g6 Bh6 Nh3 Bg5 hxg5 Kb5 Ng1 Nc6 Rh3 Nce7 fxe7 Kc6 Rh4 Qc7 Rh1 Qd8 Kd2 Kd5 Kc1+ Ke5 e8Q d5 a4 h5 c4 b5 g7 f5 a6 h4 c6 f3 c7 d4 g6 d3 c5 f2 a5 h3 c6 b4 a7 h2 a6 f4 Bh3 f1Q Bf5 f3 Na3 b3 Rb1 f2 Nc2 Qg2 Nf3+ Kd6 Nfe1 e5 Rf1 Bb7 c8Q h1B c7 Rb8 a8Q Nh6 g8Q Qe4 g7 Qd5 a7 Qc6 Qgf7 Rf8 g8N Qdd7 Bg6 Ba6 Ne7 Qc5 Nd5 Bb7 Qcd8 Bg2 Ne3 Rc8 Rb2 Bh3 Kb1 Bbg2 Qff3 Nf7 Qab7 Bh1 a8N Nh8 Qa7 Rf4 Qc1 Re4 Qg2 Rb8 Qg1 Rbb4 c8N+ Kc6 Ne7+ Kd6 Nc7 Rbc4 Na6 Ke6 N7d5+ Qce7 Qg3 Qb7 Qb5 B1g2 Rg1 f1B Qf2 Bh1 Qd1 Bfg2 Rf1 Qh7 Ra2 Qbe7 Nf4+ Kf6 Ra3 b2 Rc3 Ra4 Rc7 Rac4 Nfd5+ Ke6 Rb7 Bf3 Qc1 B1g2 Nf4+ Kf6 Rb8 Rb4 Rh1 Red4 Qd1 Be4 Nf3 Ba8 Rb7 Rbc4 Qdg1 Re4 Nfe1 Bg4 Qh2 Bf5 Rf1 Bfh3 Nh5+ Ke6 Qhg1 Rc3 Qh1 Rcc4 Nf4+
3nR1Bq/4N1Qp/2R2N2/K4p1P/1p5Q/1N1b1qR1/R2N1r1r/nRN3kr b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 c5 b4 Bd6 b6 Kf8 b5 Ke8 Bd2 Bf8 Bb4 cxb4 Kd2 Ke7 e4 Ke6 g4 d5 c4 f5 h4 a5 b7 d4 c5 a4 c6 a3 b6 a2 g6 d3 c7 Nf6 g5 Qe7 h5 Qc5 g7 Qa5 g8N Bc5 g6 Bf8 g7 Qa3 Rh3 Nbd7 b8R Qb3 b7 Qa3 Ne2 Qb3 Nc1 Bc5 Qg4 Bd4 Ne7 Ne8 Qh4 Ra7 Ra8 Rg8 b8N Nc5 Nd7 Ba6 c8R Nd6 Rc6 Bf2 Be2 Rc8 g8N Bc4 Ngf6 Bg3 Bd1 Qa3 Bb3 Ra4 Ke3 d2 Kd4 d1R+ Nd2 Rh1 Rb1 Rg8 Raa6 Rg4 Ra8 Rf4 Ra5 Rf2 Ra7 Kf7 e6+ Kg7 e5 Kh6 Raa6 Bd3 Kd5 a1Q Bc4 Nb3 Nc5 Na5 N5b3 Nf7 Kc5 Nd8 Kb6 Qc3 Ra8 Qaa1 Ra7 Ra2 Ra6 Nab7 Ra4 Nc5 Ka5 Rb2 Ra2 Rfh2 Nde4 Rbf2 Ned2 Qab2 Ned5 Qa1 e7 Qab2 e8R Qa1 Qd4 Kg5 Ne7 Qab2 Qd7 Kf4 Bg8 Ke3 e6 Qa1 Nf1+ Kf3 Nfd2+ Kg2 Qd4 Kg1 Qh4 Qab2 Nfd5 Be5 Ng6 Rhg2 e7 Bd4 Rf8 Bc4 e8Q Be5 Qf7 Qf3 Nge7 Rgh2 Nd4 Bd3 Re8 Bg3 Qff6 Nce6 N4b3 Nd4 Qf7 Nc2 Qf8 Qg7 Nf6 Qh8 Qg7 Na1 Rxg3+
1Qb1n1qN/1R2b1k1/R1RQQ1b1/2p4q/Nq6/2P3QR/K1n1r1Q1/1rBnR3 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Bh3 Be7 fxg5 Nf6 g6 Bf8 g5 Ng8 Bg4 hxg4 Kd2 d5 Kc3 a5 Kb3 c5 e4 f5 h4 g3 e6 f4 h5 a4+ Ka2 f3 b4 a3 e5 f2 b6 f1N b7 d4 h6 d3 e7 d2 g7 Kf7 e8R g2 b5 Nc6 b8R Ba6 b6 Na7 b7 Be7 e6+ Kg6 h7 Qc8 Nf3 g1Q Rh3 Qd4 Nc3 Nc6 Na4 Nf6 c3 Rf8 h8R Qb4 Rg8 Ne3 Nh4+ Kh7 g6+ Kh6 Qe2 d1B Qd3 Bc2 Qd6 Rf7 Rgf8 Nd4 g8Q Rh7 g7 Bg6 Rf7 Nc2 Rff8 Rh8 Rf7 Qd8 Rc8 Rb8 Rc6 Qc8 Qg3 Qd8 Qf8 Qd1 Qg2 Qh5 Qg3 Rh7 g8Q+ Rg7 Rd8 Ne8 Rd1 Bd6 Re1 Be7 Bb2 Nd1 Bc1+ Bg5 Qfd6 Rh7 Rfc7 Re7 Qf8+ Kh7 Qf1 Kg7 Qfg2 Rd8 b8Q Bc8 Qdf4 Rd2 Rd7 Re2 Rb7 Rc7 Qd6 Be7 Nf3 Rd7 Ne5 Rd8 Nf7 Rd7 Ra7 Rb7 Nh8 Nc7 Nb6 Qe4 Ra6 Bf8 Kb3 a2 e7 Qe6+ Qgd5 Qg8 Rb1 a1Q e8Q Qa5 Qee6 Ne8 Qdg2 Be7 Rb2 Qb5+ Ka2 Qc4+ Rb3 Qf4 Na4 Rb4 Ra3 Rb1 Rb3 Qd4 Rb5 Qb4 Rb7
1q2NBB1/1b1N3N/rb2p3/1n1B4/2b2BN1/Rp1QQ1K1/N3P1B1/2nrrk1q b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h5 a4 Bg7 g6 Rh7 g5 Bf8 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 Kd7 d4 Kd6 h4 b5 a6 c5 g7 f5 g6 f4 a5 c4 a7 c3 a6 e6 h5 f3 h6 c2 h7 b4 Nc3 b3 Bg2 Qg5 Kg3 f2 Nf3 f1B Qd2 Qd8 Ne5 Qf6 Qe3 Nc6 Nd7 Nge7 g8B Ne5 g7 Nd3 Na2 Bb7 Rg1 Rd8 a8B Nc8 a7 Qf7 Bd2 c1R Rh1 Ba6 Bb7 Qf5 a8N Na7 Nc7 Bc4 Rh5 Nb5 Ne8+ Ke7 Bc6 Re1 Rh4 Nc1 Bb7 Ra8 d6+ Kd8 d5 Ra6 Bc6 Be7 Rh5 Qf8 Ba8 Kc8 Re5 Bd8 Re4 Bd3 Ra4 Bc4 Ra3 Bc7 Ndf6 Bb6 d7+ Kb8 d8Q+ Ka7 d6 Rd1 Bgd5 Bg2 d7 Bh1 Bg2 Qb4 Bad5 Qd6+ Qe5 Qb8 Bf4 Re1 Qe3 Rd1 Kh4 g3 Ng4 Re1 Qf6 Rd1 d8B Re1 Be7 Rd1 Bf1 g2 Qg6 g1Q Bf8 Bf3 Bg2 Qh1+ Kg3 Be4 Ba8 Bb7 Qgd3 Re1 Bf7 Rd1 g8N Re1 Ng8f6 Rg8 h8N Rg7 Bg8 Rd7 Qf5 Rdd1 Qee4 Be3 Nh7 Kb6 Nf7 Bc5 Nfd6 Be3 Qg6 Kc5 Nef6 Bg1 Qf3 Kd4 Nd7 Be3 Ne8 Bg1 Nb4 Be3 Qge4+ Kc3 Na2+ Kd2 Be5 Bb6 Qef5 Rf1 Qe3+ Ke1 Qb1 Rf6 Bd5 Kf1 Qbd3 Rf4 Bed6 Rd4 Bf4 Re1 Qde4 Rd2 Q4d3 Rdd1 Bf3 Bc8 Bad5 Bb7 Bg2+
Kn2b1q1/1R4b1/ppBB1r2/1N6/2n3kn/1NQN3r/BP2N1b1/NQ2B1Bq b - - 0 1 illegal: No proof kernel
3r3B/1BNqQ1nn/R1Qn2Bp/1Q4pB/2Qp2PQ/b3b2K/2r1b3/B4kR1 b - - 0 1 illegal: No proof kernel
1qkQrQ1Q/n2N1B1B/N7/3r4/2n1BR1p/B1b1nP2/1N2Q1n1/2K2Qn1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 c4 d5 cxd5 b4 a4 f4 a6 f3 exf3 Be6 f4 Nf6 f5 Bd7 Ra3 Bb5 axb5 Ng8 b6 Nf6 Rc3 Ng8 Rc6 Bg7 Rf6 Bh6 Rf8+ Bxf8 g4 Kd7 d4 h5 Kd2 c5 b7 e5 a7 b3 g6 c4 g5 h4 f6 b2 d6 e4 f7 Nf6 d5 Nh5 g7 Na6 b8N+ Kc8 g8Q Qe7 g6 Ng3 g7 Kd8 d7 Qb4+ Nc3 Ne2 Nf3 Ng1 Qe2 Nc7 Na6 Rh5 Qh8 Nb5 g8B Bg7 Ne5 b1N+ Kd1 e3 Ba3 Rc8 a8B Nd2 Na4 c3 Nb2 c2+ Kc1 Na7 Bh7+ Qf8 Rh3 Nc4 Rf3 Qe8 f8Q Rf5 Ng6 Bc3 Rf4 Rh5 f3 Rb8 Qg2 e2 Ne5 e1N Qe2 Ne3 Bh3 N1g2 Be6 Rc8 Bf7 Rf5 Nb4 Kc7 d8Q+ Kb8 d6 Qb5 Qd7 Re8 Qde7 Kc8 Be4 Qb8 Nd7 Rd5 Qf1 Bd4 Kd2 c1N Na6 Nd3 Qe6 Ne5 Kc1 Rc5+ Qec4 Bc3 Qce2 Rb5 Nf6 Rd5 d7+ Kb7 d8Q N5c4 Qb6+ Kc8 Nd7 Nd6 Qa5 Ndc4 Qd8+
1Bq3bR/5QQ1/RnPN2K1/1Bk1p3/1b1nR3/R1n5/Q2B3p/rq2QR2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 d4 c5 dxc5 b4 a4 f4 a6 f3 a5 Qb6 exf3 Qd8 f4 Ra7 f5 Rb7 Na3 Rb6 axb6 Bh6 Nb5 Bf8 Na7 Bb7 Nc8 Bxc8 Ke2 h5 Kf3 d5 Kf4 Kd7 c4 Kc6 g4 d4 f6 d3 b7 e6 g6 e5+ Kg5 b3 f4 b2 a7 b1Q a8R h4 f5 h3 g7 h2 Nh3 d2 R8a6+ Qdb6 f7 Ne7 g8Q Qe4 f6 Rh6 R1a3 Bf5 Nf2 Rh3 Qe1 d1N Qg7 Bg6 Bd2 Qg2 Ne4 Bh5 Nd6 Nd7 b8B Rc3 Be2 Rh3 Rf1 Qe4 Rf4 Qc2 Re4 Qb3 Kh6 Rc3 g5 Nc8 g6 Be7 f8Q Rc2 f7 Na7 Qfg8 Bg4 f8R Be6 Rf1 Nc3 Q8f7 Rc1 Kh5 Qb1 Kh6 Nf6 Kg5 Nfd5+ Kh5 Kd7 c6+ Kd8 c7+ Kd7 c8R Qd8 c5 Qdb6 Qh7 Bf5 g7 Qb7 g8Q Q1b3 Qfg7 Nc6 Nf7 Nb6 Qg1 Be6 Bb5 Ra1 Qf5 Qb1 Q1g7 Qc7 Re8 Qc8 Kg6 Bd6 Rd8+ Ke7 Qf4 Nd4 c6 Bb4 Qf3 Bb3 Qf4 Ke6 Re8+ Kd5 Nd6+ Kc5 Qf3 Ba4 Qa2 Bb3 Rh8 Bg8 Qff7
BBRQb3/3p4/4QQ1q/2rP1Rpq/3BR1r1/R4K2/Nq1b1R2/k4b1Q b - - 0 1 legal: proof: e4 a5 b4 c5 bxc5 f5 exf5 b5 g4 Bb7 a4 Ba6 f6 Bc8 Nc3 Nh6 Nd5 Ng8 Nb4 axb4 axb5 Qb6 Nf3 Qa5 Ng1 Qd8 h4 g5 f4 Na6 f5 Nc7 h5 Nd5 Be2 Qc7 f7+ Kd8 Bc4 Nh6 Bf1 Nf4 f6 Nf5 gxf5 Ng6 hxg6 Qa5 Rh4 Kc7 Rh2 Kb8 Rh4 Qd8 Rh1 Kc7 Kf2 e5 d4 h5 c4 b3 g7 h4 g8Q b2 c6 Kd6 c5+ Kd5 b6 b1B b7 e4 b8B e3+ Kf3 h3 c7 h2 c6 e2 Bg2 Kc4 Bb2 e1Q Ra3 Ba6 c8Q Bc5 f8Q+ Kb4 f7 Bd6 c7 Ra7 f6 Qd2 Ne2 Qe8 Nc3 Bf1 Qd8 Rh4 c8R Rc7 Na2+ Kc4 Qfg7 Rc5 f8R+ Qf7 Re8 Rg4 Re4 Bf4 Qh6 Qe6 f7 Qg6 Rg1 Qh5 Qhf6 h1Q Qgg6 Qh6 f8R Q1h5 Rh1 Qb4 Rh2 Bd2 Bh1 Bbd3 Rf2 Qb5 Bc3 Qb2 Qa1 Bc2 Qe6+ Kd3 Rf5 Bb3 Qgf6 Kc2 Qa6 Bf7 Qae6 Be8 Bg2 Bd3 Qh1 Ba6 Bf1 Kb1 d5 Rc4 Bd4 Ka1 Bd3+ Rc1 Bc2 Bc4 Ba4 Bf1 Bc6 Rc5 Ba8
8/QB1Pnn2/3n1QRN/b1p1Q2B/3rnB1N/1Np5/qq2Q1B1/1k3KQ1 b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 b5 axb5 g5 b4 a4 h4 Nh6 hxg5 Ng8 c4 d5 b6 Ra5 bxa5 Bb7 Ra2 Ba6 Rc2 Bb5 cxb5 Kd7 Rc5 Ke8 Rc4 dxc4 d4 Kf7 f4 e5 g4 h5 a6 c5 b7 h4 b6 c3 f6 Kg6 f7 e4 d5 h3 d6 e3 f5+ Kg7 d7 a3 f6+ Kg6 a7 a2 a8B a1N Qe2 h2 Nf3 Ne7 Nh4+ Kh7 g6+ Kh6 g7 Kg5 g8B Kf4 g5 Ke4 g6 Nb3 g7 Na5 Rg1 h1N Rg6 Nbc6 b8Q Nf2 b7 Ne5 Qa7 Qb6 b8Q+ Nb7 Bg2+ Kd4 Bd2 Qb2 Kf1 Nd6 Bab7 Nfe4 Bh7 Qa2 g8N Bg7 f8Q Nef7 Qbe8 Bh6 Qg7 Bf4 Nh6 Rf8 Qf2 Kd3 Qg1 Kc2 Bc1 Rh8 Nd2 Qb2 Nb3 e2+ Ke1 Be5 Bf4 Kb1 Bg8 Nc4 Bh7 Bc7 Bg8 Ncd6 Bh7 Ne5 f7 Ba5 f8Q Nef7 Qe5 Rg8 Rg3 Rg4 Bg6 Qa2 Bh5 Neg5 Bd2 Rd4 Bf4 Nge4 Rg6 Nf6 Kf2+ e1Q+ Kf3 Nfe4 Qfh8 Ng8 Qhf6 Qc1 Q8e6 Ne7 Qc4 Kc2 Ke2 Qcb2 Kf1 Kb1 Qe2
1Q2NB2/bR3Qrp/BnBR1Pp1/1rr1Q3/3n1K2/6Qp/4R2p/k4BB1 b - - 0 1 illegal: Other
R2n1Q1b/R2p1N2/2Q4p/1r1R4/R1P2n1r/BQpRnB2/3p1K1k/4BB2 b - - 0 1 legal: proof: e4 e5 h4 g5 hxg5 b5 c4 f5 exf5 c6 b4 Bc5 a4 Ba6 a5 Bb7 a6 Kf7 axb7 Qe8 Nc3 Qc8 Nce2 Bf8 Nd4 c5 cxb5 exd4 b6 c4 b5 c3 d3 Qc4 dxc4 Ke8 f4 Ke7 g4 Kd6 f6 a5 f7 a4 f5 Ke5 f6 d3 g6 h6 g7 d2+ Kf2 Kf4 g5 a3 g6 a2 Rh5 Be7 f8Q Nc6 b8R Ba3 b7 Nce7 b6 Ra5 f7 Rh7 Qc8 Rg5 f8Q+ Rf5 Nf3 Nf6 g8R Rc5 g7 Rc7 Qb3 Nc6 Rd5 Nd4 Ra8 Be7 b8B Ne6 b7 Nd8 Ne5 Rc5 Qc6 Rb5 Ra7 Bd6 Nf7 Nh5 Rd3 Be5 Ba3 Kg4 Bbd6 Nf4 b8R Kh4 Rba8 Rh8 Ke3 Kg3 Rd5 Kh2 Kf2 Bf6 Be7 Be5 Bh4 Bf6 Ra4 Be5 R8a7 Rh7 Re1 a1N Re3 Nc2 Red3 Ne3 Rh8 Bd4 g8B Rg7 Bh7 Rg1 Be4 Rg4 Rg8 Bh8 Bf3 Nh3+ Ke2 Re4 Be1 Nf4+ Kf2 Ng6 Qfb4 Rh4 Re8 Nf4 Qf8 Nb7 Rb8 Nd8 Rba8
2K3N1/2b5/2RPQ1Rb/Q2pq1QB/2Qp1b2/k2bN2N/4p1Rp/1R1r1R2 b - - 0 1 legal: proof: g4 c5 h4 a5 a4 g5 d4 f5 gxf5 b5 axb5 g4 d5 Ra6 Be3 Ra7 Bd4 cxd4 c4 d6 e4 Qc7 c5 Qd8 e5 Nh6 c6 Rd7 c7 Nc6 dxc6 d5 Rh2 Nf7 Rh1 Rd6 exd6 Ng5 hxg5 Bb7 Kd2 Ba6 Ke1 Bc8 Ke2 e5 f4 h5 b4 g3 Kf3 a4 g6 a3 g7 g2 g8N a2 f6 h4 f5 e4+ Kf4 h3 Ke5 h2 b6 e3 b7 Qd7 b8Q Rh5 b5 Rh7 b6 Rh6 b7 Rh4 Nh3 g1B Qc2 Rg4 Qa8 Qg7 b8Q Qg5 Qc4 Rg2 Nc3 Re2 Nd1 Rc2 Qa5 Rb2 Rb1 a1B Be2 Rb6 Bh5+ Qg6 Rb2 Kf7 Rg2 e2 Ne3 Bf2 Rb1 Ba6 c8Q Bh6 c7 Bc3 Qa7 Bfe1 Qe6+ Kf8 c8R+ Qe8 f7 Bg3+ Kf6 Bgf4 Rc6 Rb5 Qd8 Ba5 Qac5 Bb6 Rg6 Rb3 Qa5 Rd3 Rg2 Bc7 Rg6 Rd1 Rg2 Bfg5+ Ke5 Kg7 f8R Kh7 f6 Bf4+ Kf5 Qe7 f7 Qf6+ Kg4 Qe5 Qg5 Bb5 Qc1 Bd3 Qc4 Qf6 Rfb8 Qh8 f8R Qe5 Qh4 Kg7 Rf6 Kh7 Rc1 Kg7 Rbb1 Kh7 Qg3 Kg7 Rg6+ Kf8 Qf5+ Ke8 Qh4 Rd2 Rf1 Rd1 Qe4 Kd7 Qg5 Kc8 Ra1 Kb7 Rc1 Qg7 Kf5 Qh8 Ke6 Qg7 Qe1 Qe5+ Kd7 Ka7 Qef5 Kb7 Qe6 Ka7 Rc5 Kb6 Rb5+ Ka6 Rb4+ Ka5 Kc8 Qh8 Rc3 Qf6 Rb1 Qe5 Qc5+ Ka4 Rcc1 Bd8 Qc4+ Ka3 Qd2 Bc7 Qe1 Bc2 Qa5+ Ba4 Qca6 Qf5 Q6b5 Qe5 Qd2 Bb3 Rc6 Bc2 Qc4 Bd3 Qa5+
2bk1BN1/6QR/4r2R/2nbnnrQ/2Q1q1r1/2BB1PQ1/n2QB3/2R1K2n b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 g4 exf5 g3 h4 Bg7 f3 Be6 Nc3 Kd7 Ne4 Na6 Ke2 Nh6 Nf2 gxf2 g4 Ke8 g5 Ng8 g6 Nb8 Qe1 Bf6 Qd1 Bg5 hxg5 Bc8 b4 e5 d4 h5 b6 c5 f6 a5 f7+ Ke7 f8B+ Ke8 b7 h4 g7 c4 b5 c3 g6 a4 d6 h3 b6 c2 d5 a3 Qd4 h2 Bd2 c1R Bc3 e4 Nh3 e3 Nf4 a2 Qc4 Kd7 Nh5 Qh4 Nf6+ Kd8 d7 Na6 b8Q Rb1 b7 Nc5 Qe5 Ra4 b8Q Rb6 Qh5 Ne7 g8B Re6 g7 Nf5 Bh7 Rg8 Rc1 a1N Qg3 Nc2 Kd1 Qf4 Be2 f1B Bg6 Nb4 Ke1 Na2 Bh7 Rh8 g8Q Qe4 Q8g7 Bh3 Bg6 Rh6 Bh7 Rg6 Ng8 Rg5 Qb3 Rd4 Qc4 Qe5 Bg6 Rdg4 Bh7 Nd6 Bhd3 Qe4 Rg1 h1N Rg2 Rf4 Rh2 Bf5 Rh4 Rfg4 Rh3 Bg6 Rh4 Bf7 Rh2 Kc7 d8Q+ Kb7 Bd1 e2 B3c2 Nb3 Qhh6 Nc5 Kd2 e1N Be2 Rf5 Qhg6 Kb8 Rh7 Ref6 Qh5 Ned3 Qd7 Ne5 Ke1 Rfg5 Bb1 Nb5 d6 Nd4 Qd8 Rh6 d7 Nf5 Bc2 Rgg6 Qdg5 Kc7 Qd2 Bd5 Bd3 R6g5 d8R+ Bf7 Ne7 Bd5 Rd6 Rhg6 Rf6 Kd8 Ng8 Rh6 Rf7 Rc6 Rf6 Re6 Rfh6
q1N1QbQ1/1k3BN1/5R2/N1R5/1q1rr2Q/NP3b1q/1K2nnQ1/2Q1qn1R b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 d4 Kd7 Kd2 c5 Kc3 Kc7 h4 a5 f6 e5 h5 e4 d6+ Kb6 d7 c4 d5 a4 d6 a3 h6 a2 h7 e3 f7 g4 Kb2 e2 Nh3 e1Q Nf2 g3 Ne4 g2 Na3 g1N Rc1 Qdh4 d8Q+ Kb7 b6 Ne2 d7 Nf6 g8Q Nd5 g7 Na6 Qe8 Nab4 d8R Ra4 Rd6 Bh3 Rf6 Bg4 Bg2 Ne3 Nd6+ Ka6 b7 Bf3 Qc2 Qh3 b8N+ Ka7 Qd1 Nf1 Nc8+ Kb7 Nc6 Qeh4 Rc2 Q4g4 Qc1 Nd3+ Ka1 Nf2 Kb2 Qd4+ Rc3 Qc5 Rc2 Qb4 Rc3 Bd6 f8N Be7 Ne6 Bf8 Rc2 c3+ Ka1 Bh5 Bd5 Bf3 Na5+ Kb8 Rd2 c2 Bc4 Ka8 Rd5 Kb8 Rc5 Ka8 Qb2 c1Q+ Qb1 Qd1 Kb2 Qde1 Qc1 Kb8 Qgf7 Ka8 g8Q Kb8 Qg2 a1Q+ Kc2 Rg8 h8Q Rg4 Ng7 Rd4 Qfg8 Ka8 Bf7 Kb8 N5c4 Kb7 Qh4 Ra5 Rh5 Re5 Rhf5 Ree4 Rc5 Qac3+ Kb1 Qa4 Ka2 Qcb4 Kb2 Qa8 Na5+
3bRR1r/1n1rBN1k/bBb5/3bB1R1/QQ1n1Pr1/2R1q2Q/1K4B1/R4q2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Ba6 cxd5 Ra8 Nc3 Nd7 Na2 Bb7 axb5 Nb8 b6 Ba6 b5 Bc8 Nb4 axb4 g4 Kf7 f4 Kg7 d4 h5 Kd2 c5 Kc2 e5 f6+ Kh7 d6 c4 d5 b3+ Kb2 e4 f7 e3 b7 h4 b6 h3 g6+ Kh6 g7 h2 d7 e2 g5+ Kh7 d6 e1Q Be3 Ra4 Nh3 Ne7 g8R Nf5 Bg2 Qe8 d8R Na6 b8Q Nc5 d7 Be7 f8R Nd4 b7 Ra7 Bf2 Qf1 g6+ Kh6 g7 Kh7 Rg1 h1B Qd6 Bh4 b8B Ba6 Rc8 Qe3 d8B Rd7 Be7 Nb7 Qb4 Bg5 Be5 c3+ Kb1 c2+ Kb2 c1R Rc3 Bh4 Re8 Bg5 Rgf8 Bf6 Qf3 Re1 Qc6 Rd1 Qca4 Bg5 Ka3 b2 Ka2 b1B+ Kb2 Ba2 g8Q+ Kh6 Qf7 Bd5 Qe6+ Bf6 Ng5 Rc1 Ne4 Kh7 Nd6 Re1 Nf7 Rd1 Bc5 Bd8 Bb6 Re1 Bh4 Rc1 Be7 Bc6 Bh3 Bhd5 Rg5 Rd1 Bg2 Rd2+ Ka3 Rf2 Qg4 Rf3 Kb2 Rg3 Qf3 Rg4 Qh3+
5RR1/R2B4/rQN1r2R/3Q2Pq/5k1b/1RB3b1/nbQqr2Q/2rn2BK b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Bb7 f5 Bg7 Nc3 Na6 Nce2 Nb8 Nf4 gxf4 Ra6 Bc8 Ra1 Be6 h3 Bf7 g5 Bh5 Ra6 Bh6 Ra1 Bg4 hxg4 Bf8 Kf2 Kd7 Kg2 Kd6 b4 Ke5 g6 c5 b6 a5 b7 h5 g7 h4 d6 c4 d7 c3 b5 c2 g5 a4 f7 f3+ Kh2 f2 f6 h3 d3 a3 b6 a2 Bb2+ Kf4 d4 c1R d5 e5 d6 e4 Qc2 e3 Nf3 e2 Nd4 e1B Nc6 Rh6 Bc3 Ra6 Bb5 Ne7 g8R f1R Ba4 Bg7 f8B Nd5 f7 Re6 Be7 Ne3 f8R+ Bf6 Bb5 Nd1 Ba4 Qc8 d8Q Bh4 d7 Rfe1 Bc5 R1e2+ Kg1 Qc7 Rh2 Qe5 Kh1 Qd6 Bg1 Qd2 Bb5 Ra8 Ba4 Na6 b8R Nb4 b7 Ra5 Qb6 Ra6 Rg2 h2 d8Q R6e3 Qd5 Re6 Rb1 a1B Rb3 Bb2 Ra8 Na2 Ra7 Ba3 b8Q+ Bd6 Rc8 Bfe5 Rg3 Ba3 Rh3 Bb2 Q8c7 Kg4 Rcd8 Beg3 Q7h7 Kf4 Rde8 Bf2 Bb5 Bhg3 Rh6 Bh4 Rd8 Bfg3 Rdf8+ Kg4 Qhc7 Bf2 Kg2 h1Q+ Kf1 Be1 Ne7 Bhf2 Bd7 Qh5 Kg2 Bh4+ Kh1 Bef2 Qh2 Bfg3 Rc8 Kf4 Nc6 Ra4 Rca8 Ra6 Raf8+
4b2b/2b1Pb1B/2Rb3b/2nk2BQ/B1R2RQ1/Q3rrq1/n3B3/3QB1NK b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 h4 g5 hxg5 f5 e4 Nc6 e6 Nb8 e5 Na6 Nc3 Nb8 Ne4 fxe4 Kf2 Ke7 d4 c5 b4 h5 g4 a5 Kg2 a4 b6 e3 g6 c4 g5 a3 g7 c3 b5 e2 d6+ Ke8 g6 e1B d5 a2 b7 h4 e7 Kd7 b6 c2 Bd2 c1B Qh5 Bb2 Be2 Na6 b8R Rh7 b7 Nc5 Rc1 a1B Rc4 Nf6 g8B Bc1 g7 Bg3 Be1 Bh6 Rh2 h3+ Kh1 Qb6 Rf2 h2 Rff4 Ra3 Ra8 Rf3 b8Q Qb5 Ra6 Qb3 Qb4 Nfe4 Rc6 Nc3 Qa3 Rh8 Bh7 Na2 g8Q Bb7 Ra6 Bc6 Qgg5 Rg8 Rb6 Rg6 Qgg4+ Re6 Ra6 Bfg7 Rb6 Bh8 Ra6 Bc3 Rb6 Ba5 e8B+ Kd8 d7 Ke7 Ra6 Bb5 Rc6 Bc7 Beg6 Qc3 d8B+ Kd7 d6 Qe3 Rf5 Re7 Be8+ Ke6 d7+ Kd5 Rf7 Qg5 e6 Bgd6 Rff4 Ba4 Kg2 h1B+ Kh2 Rf7 Be7 Re3 d8Q Be4 Bf6 Bg6 e7 Rf8 Kg2 Bf7 Kh1 Qe5 Bg5 Bb5 Rf6 Qg3 Rff4 Be6 Rb6 Ke5 Beg6 Be8 Rfd4 Rff3 Bc2 Bg8 Rc6 Bgf7 Qgh4 Ke6 Rf4 Ke5 Ba4 Ke6 Qb8 Nd3 Qbb3 Kd5 Q4g4 Nc5 Qd1+
2r1B3/2Q3R1/k2qN2q/NN1R2Nb/PQnn1Q2/2nK4/1rQRn1n1/2q2Q2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 d5 cxd5 a4 f4 a3 f6 Nc6 g3 Na5 bxa3 Nc6 a4 Nb8 a5 Ra7 Bh3 Ra6 Bf1 Ra8 f5 h6 Ba3 e6 Bc5 Bd6 Be3 Be5 Bg5 Bf4 gxf4 hxg5 Ke2 Kd7 d4 c5 a4 Kc7 h4 b5 a6 Kb6 f7 g6 f8N e5 f6 c4 a7 c3 d6 c2 d5 c1Q f7 g4 h5 g5 f5 g3 d7 b4 d6 g4 f6 g2 h6 b3 h7 e4 Nd2 e3 Ngf3 g1Q Ng5 g3 Nc4+ Kb7 Rh5 b2 Na5+ Kb6 Qc2 b1N Nfe6 g2 f8Q Ne7 f7 Nf5 Kd3 e2 Ra3 Qc7 d8R Nd4 d7 Nbc6 Qb4+ Ka6 f8Q Nc3 Qf4 Rb8 a8N Qh2 Ra1 Re8 h8Q g1N Qhf6 Qd6 Ra2 Rf8 Rh7 Qh6 Rg7 Rb5 Bg2 Bb7 Be4 Rh8 Bg6 e1N+ Kc4 Rb6 Be8 Ng2 Kd3 Nge2 Qf1 Rg8 Q6f4 Rb5 Qcb3 Rh8 Rd2 Rf8 Qc2 Rg8 Qa3 Rb2 Qb4 Rf8 Nc4 Na5 Nac7+ Ka7 Nb5+ Ka6 Qe3 Bf3 Qf4 Nac6 Na5 Bh5 Rc8 Rg8 d8Q Rf8 Qc7 Rh8 Nb3 Na5 Rd8 Nc4 Na5 Rf8 Rdd7 Rg8 Rdf7 Rh8 Rf5 Rf8 Rd5 Rh8 Bc6 Rc8 Be8
kB3qR1/1b3r2/q1q3Br/Pq1BBR2/1n1QQ2N/4Q2R/3KQ1Q1/4r1bq b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 h6 g5 Ra6 f5 Ra8 Nc3 h5 Ne4 Nc6 Nf2 Ne5 Ng4 hxg4 Bg2 Nc4 Bf1 Nd6 Bg2 Ne8 Bf1 Nef6 gxf6 Rh7 Qb3 Rh6 Qd1 Rh8 d4 g5 h4 c5 a4 Kc7 d6+ Kb8 a6 b5 a7+ Kb7 a5 e5 d5 c4 d7 e4 d6 c3 h5 c2 h6 e3 h7 g3 Rh3 b4 Nf3 g4 Nh4 b3 Qe2 Bg7 f8Q g2 f7 g1Q f6 g3 Qe7 b2 f8Q b1Q f7 g2 Qfe8 Rb8 f8Q Qb5 Qff2 Ka8 Qe4+ Bb7 Ra2 Qc8 d8R Qh1 d7 g1Q Qfg2 Ne7 Ra1 Rf8 h8B Bd4 Be5 Nc6 Qe6 Rh8 Rg8 Nb4 d8Q Rh6 Bb2 Bb6 Qdd4 Qf8 Rb1 Rc8 Bb8 Rc7 Rd1 c1Q Ba1 Qcc6 Rc1 Rf7 Rc5 Qgh2 Rf5 Qhd6 Q6e5 Ba6 Bb2 Kb7 a8B+ Kc8 Qe2g4 Bc7 Qed3 e2 Rh5+ Qcd7 Qee3 Na2 Qdd5 Nb4 Kd2 e1R Qc3 Q6e6 Bd3 Qde8 Qf6 Bh2 Q4e2 Bg1 Bg6 Qeb6 Qde5 Qee6 Bae4 Qec6 Rf5 Kb7 Bd5 Ka8 Q5e4 Bb7 Qfc3 Q6a6 Qcd3 Qbc5 B2e5 Q5b5 Qdd4
B1BK3R/1PR1NbBb/5bQ1/B2RrR1n/3n3B/1qbn2b1/4q1kQ/Q7 b - - 0 1 illegal: No possible last move
N1qRn3/3b3Q/1R1bPQR1/N2Kn3/1br5/QQN3n1/q5kN/1qN2nB1 b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 f5 axb5 e5 fxe5 f4 Bh3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Nf6 Ra1 Ng8 Kf2 Ke7 d4 c5 b4 g5 e4 f3 Ke3 c4 h4 a4 f6+ Kf7 e6+ Kg6 d6 Kh5 f7 f2 e5 f1N+ Ke4 a3 d7 c3 d5 a2 e7 c2 e8N Qf6 d8R Nh2 b6 Qe6 b5 Qd7 e6 Bg7 f8Q Nh6 b7 Nf7 b6 Nc6 b8N Rg8 b7 Nf1 d6 Qe7 d7 Qa3 Be3 c1Q Nc3 Nce5 Nge2 g3 Kd5 Kg4 h5 Kf3 h6 g4 h7 g2 h8Q g1B Rh6 g3 Rg6 g2 Qh7 Bh2 Nc6 g1N Nf6 Nd6 b8N Ne8 Rb1 a1Q Na6 Q3a2+ Qb3 Qa1b2 Ng4+ Kg2 Qc5 Bf8 Qa3 Bb4 Nc7 Rf8 Na5 Rf4 Na8 Rc4 Bf2 Qcc2 Nc1 Ne2 Bb6 Neg3 Bg1 Qba1 Rb2 Q1b1 Qba4 Bc5 Rb6 Bb4 Q4b3 Ba6 Rdb8 Bc8 d8Q Bd7 Qf6 Re4 Nd1 Qc8 Nc3 Rc4 Be3 Bg1 Nh2 Bf2 Bd4 Bd6 Bc5 Be1 Bg1 Bd2 Nd1 B2b4 Nc3 Qc7 Rd8 Qb8 N1e2 Qc8 Nc1
Bn4Rr/2B2R2/B1n3Nr/1Q3R2/KQ3qq1/3Pkn1R/b3nQ1R/3Bnn2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 g4 Be6 h4 Bf7 f5 Bh6 Nc3 Nd7 Nce2 Be6 Nf4 gxf4 g5 Nb8 g6 Bg5 hxg5 Bc8 b4 Kd7 d6 c5 b6 Kc6 b7 Kd5 g7 Kd4 b5 a5 d7 e5 g6 h5 f7 h4 f8R f3 f6 c4 f7 a4 b6 a3 Qc2 h3 Kd1 f2 Ra2 c3 Ba6 f1N d3 e4 Nf3+ Kd5 Bf4 e3 Nh4 Kd4 Bc7 h2 Qf2 Rh5 Kc2 Qf6 Kb3 c2 Ka4 Ne7 g8B c1N g7 Qf4 Ng6 Nec6 d8R+ Bd7 Bh7 Ne2 g8B Rh6 Rde8 Be6 Rd2 Nd7 b8Q a2 b7 a1N Rb2 Bd5 Re5 Be6 Rf5 Ba2 Rd8 Nc2 f8R Ne1 Bb3 Qg4 Bd1 Nf3 R8f7 Qf4 Rh8 Qg4 Rg1 h1Q Qf8 Qh2 b8Q Qhh4 Qb5 Ndb8 Rg8 Qh2 Rh1 Qhf4 Rh3 Neg1 Qg3 e2 Qfb4+ Ke3 Rd2 e1N Rdh2 Nd7 Qg2 Re8 Qb2 Ndb8 Qf6 Ne2 Qh4 Re5 Qf6 Rc5 Qh4 Rc3 Qf2+ Kd2 Rfh5 Qd7 Be5 Ncd4 Ne7 Qe3 Rh8 Qf4 Be4 Qdg4 Re8 Rh8 Ba8 Rh6 Rhf5 Rh8 Qa3 Rc6 Bc7 Rch6 Ng6 Ndc6+ Qab4+ Kc1 Qbd4 Kd2 Qdc4 Qe5 Rg8 Qef4 Qg2 Ke3 Qcb4 Qfg5 Qg3 Q5f4 Qf2#
BNB2NN1/3r2k1/b1B2R1n/1Q1rB1N1/1K1bB3/1P2qQ1Q/rn1p4/4n1b1 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 f4 g6 g5 Bh6 Ra4 Bg7 fxg6 Bh6 f5 Bf8 Rg4 hxg4 Kd2 a5 Kc3 e5 h4 d5 b6 a4 b3 a3 f6 e4 b7 d4+ Kb4 e3 c4 g3 h5 g2 h6 e2 h7 e1B+ Nc3 a2 g7 Kf7 g6+ Ke6 f7 Kf6 Nh3 g1N Bd3 a1R Bb2 Bd2 Be4 d3 Ng5 Rb1 Qf3+ Bf5 Rh6 Be3 Na2+ Ke7 c6 d2 c7 Qd3 c8B Ra7 c5 Bd4 c6 Ra1 c7 Nd7 b8Q Nc5 Qb5 Kf6 Bd7 Qe3 c8B Rb7 Bdc6 Rd7 Bc3 Bd6 f8N Bh2 Ba8 Na4 Bec6 Nb2 Be4 Ne7 g8B Kg7 Bgd5 Ng8 Bdc6 Bh3 Nf7 Bf1 Ng5 Bf6 Be5 Be2 Nc3 Ra2 Na4 Bf1 Nb6 Bc4 Rh4 Nh6 Rf4 Rd5 Nbd7 Bf1 Qc5 Ba6 Qb5 Rg8 Nb8 Rh8 Bc7 Bd4 Rf6 Rd7 Be5 Rd5 Nfd7 Re8 Nf8 Re7 Qd1 Nf3 Qh1 Ng4 Qg2 Ne1 Qf3 Kh6 h8Q+ Rh7 Qg8 Rhd7 Qe6 Kg7 Qef5 Nh6 Q5h3 Kh8 g7+ Kg8 Rf7 Bg1 Rf6 Qf4 Nge6 Qg5 Ng6 Kh7 g8N Qe3 Ng5+ Kg7 Nf8
K2b4/Qr1nRnb1/8/2kqR1P1/1p6/1r1R1N2/QBNnN1Nr/2Q1N1Rb b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 g4 h5 f4 g6 g5 Bg7 Be2 Bh6 fxg6 Bf8 Bg4 hxg4 f5 Qd7 Qb3 Qd6 Qd1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 e5 Kb5 c5 h4 b6 a4 e4 d4 g3 f6 g2 g7 c4 h5 e3 f7 e2 a6 e1R a7 c3 a5 c2 a6 Re3 h6 Re4 h7 Nf6 g8R Ne8 Na3 Bg7 f8N Nc6 Nf3 g1B Ne6 Rb8 a8Q Re1 a7 Bf8 Nf4 Qe7 Ne2 Bf5 Ka6 b5 Bb2 c1N Rg7 b4 Nc2 Be4 Ra5 Qd8 Re7 Na2 Qc1 Be3 Rg1 Rf1 Nce1 Rg8 h8N Nc3 Ng6 Ne5 Ngf4 Rg6 Nfg2 Nf7 Rc5 Rc8 Kb7 Nb1 Qb8+ Rc7+ Ka8 Qd7 Qb7 Nd2 Qa6+ Rc6 Qa2 Rh6 Ra5 Rh2 Rc5 Kc7 d6+ Kb6 Rce5 Rc7+ d5 Qb5 d7 Nf6 d8R Rb7 d6 Bg7 d7 Qd5 Rh8 Bf4 d8N Nd7 Ne6 Be3 Rc8 Kb5 Rc4 Bb6 Rc3 Bd8 N6d4+ Kb6 Ndc2 Rf2 Nfd4 Rf3 Rd3 Re3 Ndf3 Kc5 Rd4 Rc3 Rd3 Rb3 Nfd4 Ra3 Nh4 Bh1 Nhg2 Nf6 Ndf3 Rd7+ Kb8 Rb3 a8Q Rc7 Q8a4 Rb7+ Ka8 Nd7 Qa7+
r4R2/1P2B1KQ/R1N3N1/q1qn4/p2QN1b1/k2brN2/1nbR1Q2/qN5Q b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 g6 a4 Bb7 axb5 Bc8 f6 Kd7 f7 Bg7 Nh3 Bh6 Ng1 Bf8 g4 Bg7 h4 Bb7 f4 Bf6 f5 Ba6 g5 Qc8 Bd3 Bc3 f6 Qd8 Bc2 Be5 Bf5+ gxf5 g6 Bf4 Ra3 Be3 Ra1 Bg5 hxg5 Bc8 Kf2 Kd6 Kf3 Kc5 Kf4 Kb4 Ke5 h5 f8N a5 d4 c5 b6 h4 f7 f4 g7 h3 g6 c4 d6 e6 d5 h2 d7 c3 d6 c2 b7 f3 Nc3 f2 Nf3 f1B Bg5 c1Q Be7 Na6 b8R+ Qb6 d8Q Rh6 d7+ Kc4 b4 Rh3 b5 Nf6 g8N Nc5 g7 Kb4 Ng6 Nd5 f8Q Bd3 Nf6 a4 g8Q Qc6 Ra2 Qa1 Rd2 Ka3 b6 Bc2 Rf1 h1B b7 Bg2 Rff2 Bf1 Qh7 Bfd3 Ne4 Qb5 Qh1 Rg3 Ne1 Re3 Rf6 Qc4 Nf3 Qb4 Kd6 e5 Qb6 Qd4 d8N Bg4 Nc6 Qc4 Qfh8 Qb4 Rbf8 Qc4 Nf2 e4 Ke5 Be2 Nd8 Rd3 Rd1 e3 Ne4 Qb1 Na2 Qbb5 Nac3 Qa5 Rd6 Bf1 Rdf6 e2 Rd2 e1Q Qa7 Qa1 Ra6 Qcb5 Nc6 Qbb4 Qf6 Qbb5 Qfh4 Re3 Qf2 Be2 Kd6 Nd3 Qd4 Nb2 Ke5+ Nb4+ Kf6 Bed3 Kf7 Qc5 Kg7 Nd5 Nb1+
6N1/3N1nK1/NP3rQ1/N3qr1p/2qR1qbk/r1BR3Q/1b1QN3/2Qb2R1 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f7+ Kd7 cxd3 Qe8 d4 Qd8 d5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Bg7 h4 Bb7 h5 Bh6 f5 Bf8 f6 Bc8 g5 Nc6 Bd3 Ne5 Bf5+ gxf5 Rh2 Qe8 Rh1 Ng6 hxg6 Qd8 Kf2 h5 Kg3 c5 Kh4 a5 d4 e5 b4 e4 d6 Ke6 b6 c4 b7 c3 b8N a4 d5+ Ke5 d7 e3 d6 Kf4 g7 a3 b5 a2 g6 c2 b6 Ra7 Bd2 c1R Na3 Rh6 Ne2+ Kf3 Kg5 f4 Na6 Qc7 d8Q Bg4 d7 Qc4 Bc3 Ra8 Qd2 Rf1 Rd1 a1Q Qc7 Qc1 d8R Bc5 f8Q Bd4 f7 Kg2 Rh4 f3 Rd6 f2 Qfc8 Kf3 f8N Ra7 Ng3 e2 Nd7 e1Q Ne2 Be5 Rd3+ Kg2 Ba5 Bb2 Bc3 Ra8 Rh1 Ra7 Rd4 Ra8 Rg1+ Kh3 Nc2 Ra7 Na1 Ra8 Nb3 Ra7 Kf4 Kh4 Ke5 Ra8 Nb4 Ra3 Na6 Ne7 Kf6 Nc6 g8N Nd8 Na5 Nf7 Rd3 Qf4+ Kg7 Qc4 Qc2 Q1f4 R1d2 Qa1 Rd4 Qe1 R2d3 Qa1 Qd2 Qe1 Kf8 Qa1 g7 Rf6 Qc6 Qe1 Nc1 Qee5 Ne2 Rfa1 Qf3 f1B Qcc6 Bfh3 Qf1 Rf5 Qh1 Bf3 Qfc1 R1a2 Qg2 Bhg4 Qh3+ Kg5 Qe3 Ra1 Ngf6 Rb1 Qc2 Rf1 Nc1 Bd1 Qed2 Qfe3 Ne2 R5f4 Qcc1 R1f3 Ng8 Rf2 Ne7 Rf6 Kg8 R2f4 Kh7 R4f5 g8Q+ Rg6 Qg7 Q5f4 Ng8 Qee5 Qh8 Rgf6 Kg7 Qb4 Qh7 Qc4 Qg2 Kh4 Qg6 Qe8 Qf3 Qee5 Qh3+
b1b1Q1Qn/RnQ2b2/Rr6/3bN2R/B2N1Nk1/b2K3p/n1Q2Q1P/q2N4 b - - 0 1 legal: proof: b4 a5 f4 b5 a4 e5 fxe5 c5 bxc5 g5 axb5 Nc6 e4 Bb7 d4 Ra7 e6 Nb8 d5 Ke7 Bf4 Kf6 e5+ Kg6 e7 gxf4 Bc4 Ra6 Bf1 Re6 dxe6 Bc8 Kd2 Kg5 e8R d5 g4 h5 c4 f5 e7 f3 b6 f2 b7 f4 e6 d4 c6 a4 c5 f3 c7 a3 c6 h4 Qc2 d3 Ne2 a2 Nf4 h3 Nc3 Qd7 Nd1 Na6 b8N Rh6 Rd8 Nb4 e8Q Qf7 e7 Qg7 Rd5+ Kh4 g5 Kg4 Be2 f1B g6 Bg2 Qf7 Qb2 e8Q Ne7 g7 Ng6 g8N Nh8 Rh5 Rg6 Ke3 d2 Bb5 f2 Ba4 f1B Ne7 Bc4 Re1 Rh6 Neg6 Bgd5 Qg8 Qc1 Kd4 Bf7 Re7 Bcd5 Rd7 Bd6 Qe1 Be7 Qf2 Bf8 Na6 Bd6 Nc5 Be7 Nce6 Bf8 Nb2 d1B Re7 B1f3 Nd1 Na6 Kc3 Nc5 Nd4 Nb7 Re6 Ba3 Kd3 Bd7 c8Q Bg2 Rb1 a1N c7 Nb3 Qce8 Bc8 Ra1 Qb1 Ra6 Nc1+ Kc3 Na2+ Kd3 Bce6 c8Q Bgf3 Qc7 Bc8 Ra7 Qb2 Rb1 Qa1 Rb6 Bg2 Rba6 Bh1 Qh7 Bhg2 Ne7 Rb6 Neg6 Nd8 Qg7 Ba8 Qgf8 Nb7 Qg8 Bgd5 Ne5#
n1k5/1R1q1Qb1/N1N1Bbn1/4Nr2/2Q4N/NKP1Qpnb/2RQ3n/2R1q3 b - - 0 1 legal: proof: f4 b5 a4 e5 axb5 f5 d4 c5 dxc5 a5 fxe5 h6 Bg5 hxg5 g3 f4 g4 Ra6 Nd2 Rf6 Nb1 Rf5 gxf5 Rh4 Bh3 Rh5 Bf1 Rh8 Kd2 d5 Kc3 Kd7 e4 a4 h4 g4 b4 g5 c6+ Kc7 f6 a3 f7 a2 h5 d4+ Kb3 g3 h6 g2 h7 g4 e6 g3 e5 d3 c3 d2 e7 Bb7 e8Q Ba8 e6 Qd5+ Bc4 Qc5 e7 Qh5 Nf3 g1N Be6 g2 Na3 Qc5 Rh2 Qd6 Ne5 Na6 Rc1 Bg7 f8N a1Q Qf7 Qd7 e8Q Ne2 Nfg6 g1B Nh4 Ng3 Re2 Bd4 b6+ Kd6 b5 Nc7 b7 Ne7 b8R Ng6 b6 Rf8 h8Q f3 Rh2 Bb7 Qhg8 Bc8 b7 Na8 c7 Bf6 Qc2 d1N Qd2 Ne3 Re2 Ng4 Rf2 Qe7 Re2 Bd7 c8N+ Kc7 Na7 Nh2 Nac6 Bc8 Rf2 Qd7 Qee7 Bg7 Qc5 Bf6 Qc4 Bg7 Qe8 Rf5 Qgf7 Be3 Qee7 Bg5 Qec5 B5f6 Qce3 Qe7 Rff1 Bd7 Rc2 Qe1 Rh1 Qf2 Rhc1 Qe1 Re8 Qd8 b8N Kc8 Re7 Qe8 Bd5 Be6 Rb7 Qd7 Na6 Rf4 Qee2 Bh3 Be6 Rf5 Qee3
6qn/k2N2R1/Rn2RQ1K/1Q1pnr1P/3R3r/q2QB1b1/Q5nQ/N1N2r2 b - - 0 1 illegal: No possible last move, all moves rejected
2nB2QN/3p1NBK/4N2Q/4nk2/3r3N/4q1rQ/rN1Qn1bP/R1r3qB b - - 0 1 illegal: No possible last move
1N2n1rQ/KB1rqb1R/Q2NN2p/3P3k/1R2q2r/2b1R3/n1Q4p/2QN3N b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 b5 e4 f5 exf5 b4 h4 b3 axb3 Qd6 h5 Bd7 h6 Bc6 b4 Ba4 b3 Nc6 Bb2 Bb5 Bf6 Ba6 b5 Bb7 Bb2 Qg6 Bf6 Qg7 hxg7 Nd8 Be5 Nc6 Bg3 Ba6 Bh4 gxh4 g5 Nb8 g6 Bc8 Ke2 a5 Kd3 c5 Kc4 e5 d4 h3 f4 a4 d6 a3 b4 e4 d5 a2 b6 e3 Kb5 e2 f6 e1Q f7+ Kd8 b7 c4 Kb6 c3 d7 Ke7 d8N Kf6 b5 c2 f5 Kg5 f6 c1R Ne2 Qc3 Qc2 Kh4 Ng3 Nc6 b8R Be7 f8N Ra7 f7 Bd6 Nb7 Ra8 Ne6 Qf3 f8Q Nce7 Qf6+ Kg4 Nc3 Be5 Nd1 Qe4 Nd6 Bc3 Rb7 Rb8 Ka7 h2 b6 h6 Ba6 Rh7 Rb1 a1Q Rb4 Qa3 Re1 Bd7 Rc7 Be8 b7 Bf7 Nh1 Kh5 Re3 Rd8 Qf1 Nf6 b8N Ne8 g8Q Rg7 Qf4 Rd7 Qh8 Rg8 g7 Ra1 Qf6 Ra2 Qc1 Rg2 Qf2 Rg4 Qfc2 Rh4 Rcb7 Qa5 Rc7 Qb5 Bc8 Qe2 Bb7 Nc6+ Ka8 Rf8 g8Q Qe1 Qgg7 Rg8 Qf6 Qe2 Qf1 Qe1 Qa6 Qe2 Rd4 Nb4 Ka7 Na2 Rb4 Q2c4 Ng5 Qe7 Ne6 Qd3 Rcc4 Qe2 Rg4 Qc4 Rg7 Qe4 Rh7
2k2N1q/r1q1BPN1/n2r3Q/2p1n3/2Qp2B1/3Q1BB1/r2bNN2/1K2R1bB b - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 c4 h4 a4 h3 axb5 Qe7 b6 Rh6 b7 Qf6 gxh3 Rh5 h4 Rh8 h5 Qd8 e4 f5 e6 d6 e5 Qh4 b5 Bd7 b6 Qf6 Ra4 Bb5 cxb5 Qd8 Re4 fxe4 Kd2 c5 Kc2 g5 f4 a5 h4 g4 e7 Kd7 e8B+ Ke6 h6 d5 h7 g3 f5+ Ke7 h5 e3 f6+ Ke6 h6 g2 f7 a4 Bc6 d4 Nc3 a3 Nce2 a2 Nh3 g1R Nf2 a1Q Qd3 Nf6 Bfg2 Qc3+ Kb1 Nfd7 Bgf3 Rg7 Re1 Rhg8 h8Q Rg2 h7 Ke7 e6 Kd6 e7 Nf6 e8B Rg1 Bed7 R1g7 Bdg4 Na6 b8Q+ Qc7 b7 Qa5 b6 Rg6 Qc8 Ra7 b8N Nd7 b7 Ne5 Nd7 Qd8 b8B+ Qac7 Nf6 Bh6 Nh5 Bf4 Qg7 Bh2 h8N Bg1 Qh6 Ke7 Bce4 Rd6 Ng7 Qe8 Qce6+ Kd8 Ng6 Rf8 Nef4 e2 Qec4 Rh8 Bh1 Rh7 Bef3 Qh8 Rf1 e1B Ne2 Bd2 Nf8 Qg8 Re1 Qh8 Qhg6 Rh2 Qh6 Bc3 Bf4 Bd2 Bg3 Rg2 Nd7 Kc8 Nf8+ Qd7 Bc7 Rh2 Bd8 Rg2 Nfe6 Qc7 Be7 Qa5 Ne4 Bf4 Nc1 Ra2 Nf2 Qc7 Ne2 Bd2 Nf8+
n1n1Bq2/p1Qq3B/1Rrr1QRQ/1P1B2Q1/K1B3nR/1N3b2/kp6/3b2B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Bg7 exf5 Na6 b4 Bh6 b6 Nb8 b5 Bf8 c4 Bb7 d4 Bd5 Nc3 Bf7 Nd5 Bh5 Nb4 cxb4 c5 Bf3 Qd2 Bb7 Qd1 Bc8 c6 Bg7 Rh5 Be5 Rh2 Bd6 Rh1 Bc5 dxc5 Kf7 Ra4 Kf8 Ra1 Ke8 Kd2 Kf7 Kc2 d5 Kb3 h5 f4 e5 g4 h4 g6+ Kf6 g7 h3 b7 h2 c7 d4 c6 e4 g5+ Ke7 f6+ Ke6 f7 Kd5 f8Q e3 g6 e2 f5 e1Q f6 d3 f7 d2 Bc4+ Kd4 Ra6 Nf6 g8B Rh6 g7 Nbd7 b8R Bb7 c8B Qc7 Ka4 Kc3 Qg4 b3 Nf3 d1B Be3 Kb2 Nd4 Ka2 Bg1 Qe7 Bh7 Ne4 g8B Rd6 Qh6 Qf8 Qgg5 Qcd8 c7 Nb6+ Ka5 Rc6 Bd7 Nd6 Be8 Ndc8 Qhf6 Qd7 Bd5 Nc4+ Ka4 b2+ Nb3 Rd6 Qfh6 Bc6 Rbb6 Bb7 Be6 Bbf3 Bd5 Rb8 Rc6 Rb6 Qhf6 Qg7 f8Q Qgf7 Q8h6 Qf8 Rc5 Rbc6 Rb6 Ne3 Bc4 Nd5 Bgf7 Nce7 c8Q Nc7 Qb7 Nc8 Bfd5 Na8 Qc7 Qde7 Be3 Qd7 Rg1 h1N Rg3 Re6 Bg1 Nf2 Rh3 Rcd6 Rcc6 Ng4 Rh4 Re5 Be6 Rc5 B6f7 Rd4 Rd6 Rc6 Bd5 Rd3 Qd4 Rd2 Rg6 Rd3 Qdf6 Rd4 Be6 Rdd6 Bed5
b1q2B2/2BBQ1P1/7R/1Q1q1kbr/2B4Q/Kp1n1pqN/1nN1BQ2/4b1N1 b - - 0 1 legal: proof: g4 a5 a4 b5 c4 g5 f4 d5 cxd5 e5 fxe5 Bd6 b4 Qf6 bxa5 Kd7 h4 Ra6 h5 Qd8 Ra3 Be7 Rf3 Bf8 Rf4 gxf4 g5 Rg6 hxg6 Ke8 e4 Ke7 d4 h5 Kd2 c5 Kc2 f5 Kb2 b4 d6+ Ke6 d7 h4 g7 h3 d5+ Kf7 d6 Ke6 a6 c4 g6 f3 a5 f4 a7 h2 a8Q b3 a6 f2 a7 f3 Be2 f1Q Qb7 c3+ Ka3 c2 a8Q Qe1 Qaa7 Qc3 Qe1 Rh6 Qh4 Qe8 d8B Bd7 Qb5 Na6 Bc7 Nf6 g8B+ Qf7 g7 Ne8 Qaf2 Bc8 Be3 Be7 Bc5 Qe1 d7 Bg5 Bf8 Nb4 d8Q Bd2 Qdg5 Bd7 Qge3 Bc6 Qa7 Nd6 Qab7 Kd7 e6+ Ke8 e5 Nd3 e7 Kd7 e8N Ke6 Nf6 Kf5 Ne4 Rh5 Qba7 Qd5 e6 Ba8 e7 Bg5 e8B c1B+ Ka4 Bb2 Na3 Nc4 Nc2 Bc3 Bc6 Ncb2+ Ka3 Bcd2 Qac5 Qc1 Qe7 Be1 Bf7 Qe5 Bc4 Qd5 Nc3 Qf4 Nh3 Qfe5 Bd7+ Qee6 Rg1 h1Q Rg4 Qg1 Rg3 Bf4 Rg6 Bg5 Rh6 Qg2 Bd1 Qh2 Ne2 Qf4 Neg1 Qg3 Be8 Qd7 Be2 Qc8 Bd7+
1qR1R3/1B1b1PQK/BR2p3/1QrR4/2q2BNb/1p1k1bQ1/1Q1r1Q2/r5n1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 g4 Bh6 h4 Qd6 h5 Nc6 Nc3 Bf8 Nce2 Qd8 Nf4 gxf4 g5 Ne5 Ba3 Rb8 Bc1 Ng6 hxg6 Ra8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 a4 Kc3 f7 b5 d6 c5 d7 h5 d5 f3 a6 f2 a7 c4 f6 h4 Kf5 b4 a5 h3 d6 h2 g7 e6+ Kg6 b3 a6 Rh4 Nh3 Qa5 d8Q Re4 d7 Qa3 Qd3+ Kb4 Kh7 c3 g6 c2 Bf4 c1R Qb5+ Kc3 Rg1 h1Q Rg5 Qb4 Rd5 Rb8 a8R Qg2 a7 Nh6 g8Q Nf5 g7 Re2 Ra6 Qg3 Rb6 Be7 f8Q Nh4 f7 Rd1 Qh8 Ra1 g8Q+ Kc2 Qd4 Qc4 Qfg7 Rd2 Be2 f1B Nf2 Bf6 Ng4 Bg2 Qf2 Nf3 Qe7 Bh1 d8R Ng1 Re8 Bd7 Qa3 Rc8 Bf1 Rc5 Rac8 Bg2 a8B Bf3 Bb7 Bh4 Qba4 Qb4 Bfa6 Qc4 Qb5 Qh2 Bh6 Qc7 Bf4 Qb8 Qab2+ Kd1 Qg3 Ke2 Qgf6 Bh1 Qgg7 Bf3 Rf5 Kd3 Qfd4+ Ke2 Qdf2+ Kd3 Rd5+
3q1Nq1/1nr1N3/k3pB2/BQ2p2Q/3p1b1P/1B1KQ1bR/3N1rB1/N4nB1 b - - 0 1 legal: proof: b4 b5 a4 d5 axb5 c5 g4 h5 gxh5 c4 e4 c3 Ra6 Qc7 Re6 Qd8 Re5 f6 dxc3 fxe5 c4 d4 c5 Bg4 Bb2 Be6 Bc1 Bd5 exd5 Qb6 Ke2 Qa5 Ke1 Qd8 Ke2 Kd7 c4 Kc7 f4 Kb7 h4 a5 h6 g5 b6 a4 c6+ Ka6 f5 g4 h7 g3 c5 a3 b5+ Ka5 f6 g2 f7 a2 c7 a1B c8B Qd6 b7 Nc6 b8Q Ra6 b6 Na7 b7 Nh6 c6 Qb4 c7 Rg6 d6 Bg7 f8N Qc3 d7 Qc2+ Nd2 Rg3 d8B Rc3 Nf3 g1Q Ne1 Nf5 Be6 Nc6 c8N+ Ka6 Ba5 Ne3 Bb3 e6 Rh3 Bh6 Ne7 Bf4 Bg2 Nf1 Qc8 Qg6 Nc2 Nd8 b8Q+ Nb7 Qc5 Bg3 Qa3 Bb2 Na1 Qg5 Qe8 Rc6 Kd3 Rc7 Qdh5 Rg8 h8B Rg7 Qb4 Rf7 Qa3 Rf2 Bf6 Qg8 Nf3 Qh8 Be3 Bc1 Nd2 Qg8 Bh1 Qg2 Qd7 Qd5 Bg2 Re2 Bg1 Rf2 Nb1 Be3 Nd2 Bef4 Qc1 Qd6 Qe1 Qb6 Qe3 Qd6 Qde8 Qd8 Qb5+
3RN3/2NB1Kpp/bp2nQN1/3rBPN1/2Q2bQ1/2b4B/2Nkq3/3rb2Q b - - 0 1 illegal: No proof kernel
r1R3k1/2p1qr2/2Qrp2b/P3n2Q/R1NB3R/1K2BBr1/np2Q2R/R6Q b - - 0 1 illegal: No possible last move, all moves rejected
1r6/2pbNN1k/NQQb4/2n1p2b/1NBqBp1K/2PN3R/1bQ1B2B/2q5 b - - 0 1 legal: proof: e4 a5 f4 e5 a4 d5 exd5 b5 axb5 Ra6 f5 Re6 fxe6 g5 b4 Na6 h4 Qf6 g4 Nb8 h5 Nc6 Ra3 Nce7 Rf3 Ng6 hxg6 Qe7 Rf4 gxf4 g5 Qd8 Kf2 h5 d4 f5 e7 h4 b6 h3 b5 h2 g7 Kf7 e8B+ Ke7 c3 f3 Kg3 f2 d6+ Ke6 d7 a4 b7 a3 b8Q a2 g6 Kf6 d5 a1B b6 Rh5 b7 Qe7 d8Q Be6 d6 Bd7 Qc2 Rh8 Be2 f1Q Na3 Bb2 Nf3 Rh4 Bf4 Nh6 g8B Kg7 Ne1 Ng4 Bgc4 Ne3 Nd3 Bb5 d7 Kh8 g7+ Kh7 g8N Qd6 Qf6 Nd5 d8N Qc1 Nf7 Nb4 Bc6 Qd4 Ne7 Na6 Be4 Bd7 Qc6 Nc5 Qa7 Rh5 b8N Rg5+ Kh4 Rg8 Qab6 Rh8 Ng6 Bd6 Na6 Rb8 Bg3 f4 Ne7+ Kg7 Rg1 h1B Bh2+ Bg2 Rf1 Bgh3 Rf3 Bhg4 Rh3 Bf3 Qb1 Bh5 Nc2 Bf5 Ncb4 Kh7 B4f3 Bc8 Qc2 Bd7 Be4+
RB4BK/1k2p3/3Q4/5Qn1/Nq1rr1r1/1QpnBB2/2bpPpQR/2R4B b - - 0 1 legal: proof: f4 h5 a4 g5 fxg5 b5 axb5 Nh6 g6 Ng8 g4 Bb7 c4 Rh6 g5 Bc8 b6 Ba6 Na3 Rh8 Nc2 Bb7 Ne3 Bc8 Ng4 hxg4 b4 c5 d4 Rh4 b7 Bg7 b5 Rh8 Bh3 Qc7 Bf1 Qc6 b6 Qb5 cxb5 c4 Ra5 Be5 Ra4 Bd6 Ra1 Bc5 dxc5 Rh5 Qc2 Rh3 Qd1 Rh8 Kf2 Kd8 Ke3 d5 Kf4 a5 h4 f5 g7 a4 c6 a3 h5 c3 c7+ Kd7 h6 a2 g6 g3 Kg5 g2 h7 f4 Be3 f3 Qb1 d4 Qf5+ Kd6 Rc1 a1R Nh3 g1Q+ Bg2 d3 Nf4 f2 Ne6 d2 Nc5 Nf6 Kh6 Nc6 g8Q R8a7 Kg7 Nd4 b8B Qd1 b7 Nd7 b6 Rb1 Na4 Nf3 Rh2 Kc6 Bh1 Rb4 Qb3 Rf8 h8Q Rd4 Qhg8 Ne5 Kh8 Nd3 g7 Be6 c8B Rfd8 Qf6 Re4 Qf5 Bf7 Be6 Bg6 Bf7 Bh7 Bh5 Ng5 B5f3 Rd4 Be5 Rc4 b8R Rd7 b7 Rdd4 Ra8 Qc2 b8Q Qb2 B5f4 Qa3 Qbd8 Qb4 Bb8 Kb7 Qd6 Rd5 Qfg6 Rg4 Qf8 Rce4 g8B Rdd4 Qgf5 Bg6 Qg7 Bf7 Qa3 Bb3 Qgg6 Bc2 Qb3 Ne5 Qh7 Nd3 Qh3 Nc5 Qf1 Nd3 Qg2
1R6/pn2pp2/2kN1n2/1N1rRr2/1bQ1Q3/BPnQ3Q/p2N4/2KQR1Rb b - - 0 1 illegal: No proof kernel
N2n1q2/K2b1Nb1/2Q2Qrk/2nQr1R1/2q1RRR1/1b1p2q1/3P4/NNB2Nn1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 Ke2 Kf7 Kd3 d5 Kd4 g5 Kc5 Kg7 c4 a5 h4 b4 f4 b3 f6+ Kh6 f5 b2 f7 g4 f6 g3 Qf3 g2 Ra4 d4 Qd5 d3 Ne2 g1N Ng3 Qe8 Nf1 Nf3 Rg1 Ne5 Rg4 Kh7 h6 Nbc6 b8Q e6+ Qbd6 Qe7 h5 Ra6 b7 Bg7 f8R Nf3 b8R e5 f7 e4 Rb5 e3 Re8 Qh4 Ree4 Nd8 Q6c6 Nf6 Rab4 Re8 f8N+ Kh8 h7 a4 Ref4 e2 Ne6 e1Q Nd4 a3 Nb3 a2 Na1 Ng1 Ra5 Qe5 Kb5 Qd4 c5 Re5 Rba4 Qe3 Rad4 Qeg3 Rde4 Ra8 Kb6 Bd7 Rb5 Rb8+ Ka7 Rb6 Qb7 Rd6 c6 Rde6 c7 Rb6 Re2 Ne4 c8N Rg6 Nb6 Nc5 Na8 Qe7 Ree4 Qf8 Nc3 b1B Qbc6 Bc2 Nb1 Bb3 Ra5 Bf6 Rb5 Kg7 h8N Kh6 Nf7+ Kh7 h6 Bg7 Nc2 a1Q+ Ra5 Qd4 Na1 Qc4 Rb5 Rgg5 Ra5 Qd6 Rb5 Kg6 h7 Kh5 h8Q+ Qh6 Nd6 Rg6 Qf8 Qh8 Qf6 Kh6 Nf7+ Kh7 Rg5 Qe8 Rb4 Qf8 Nd6 Kh6 Rfg4 Qc3 Ref4 Qc2 Rbe4 Qc4 Nf7+
7Q/R1p1n2n/r1N1BQ1Q/2P2BB1/kq4bK/r4qQ1/B1r4B/N1Nq1bb1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h5 g4 Ne7 g6 Ng8 b4 Nc6 g5 Nb8 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kf2 f5 Kg3 d5 c4 Kd7 h4 a5 e4 d4 e6+ Kd6 b6 Kc6 h5 a4 g7 f4+ Kh4 g3 h6 d3 c5 Kb5 b7 a3 e7 g2 e8B+ Nd7 b8Q+ Bb7 h7 f3 e5 f2 e6 a2 e7 a1Q g6 Qa2 Bf7 Ra5 Nd2 Ra6 Nb3 Ka4 b5 d2 b6 Ba8 b7 Ra7 Qh5 d1R Na1 Ne5 Bd3 f1B Qh6 Re1 Bg5 Qd2 e8Q+ Nc6 Ne2 g1Q Bf5 Qge3 Nc1 Nf6 g8B Qf3 g7 Ra6 Ba2 Bd6 Qe7 Bh2 Bge6 Bg1 g8Q Re3 Qgg7 Rg8 h8B Nh7 Qef6 Ra3 Qc8 Rf8 b8N Ne7 Nc6 Qa5 Qgg6 Qdd1 Bg7 Rf7 Qh8 Bb7 Rh2 Bc8 Rb2 Qad2 Rb7 Rf8 Ra7 Qb4+ Bf4 Rd8 Qg3 Rd2 Bf8 Rc2 Bg7 Nd5 Bf8 Bd7 Bd6 Ne7 Be5 Be8 Bd6 Bh5 Be5 Bg4 Bg5 Nd5 Qf2 Ne7 Bh2 Qdd5 Qe1 Qdd1 Qg3
1nKR1bkB/4R2q/3b1Bpr/n2Q2P1/R3Q1Q1/1N2rr1b/Q1Bnb3/2BB4 b - - 0 1 legal: proof: f4 b5 g4 e5 fxe5 d5 c4 b4 cxd5 h6 Nc3 b3 Ne4 Qd6 Ng5 Qd7 axb3 Qd6 b4 Qd8 b5 Ba3 N5h3 Bf8 g5 h5 Nf2 Nf6 Ng4 hxg4 Qb3 Ng8 Qa4 Qe7 Qd1 Qd8 Kf2 a5 Kg3 c5 Kf4 f5 d4 Kf7 e4 c4 h4 a4 b4 a3 h5 g6 h6 g3 h7 c3 b6 g2 b7 c2 b5 a2 d6 Ra3 d5 Ra6 b6 Bh6 e6+ Kf8 Ke5 f4 d7 f3 Kd6 f2 e7+ Kg7 e8B Ne7 e5 Nec6 e6 Ra7 e7 Ra6 Be2 f1B Nf3 g1B Nd4 Ra7 Nb3 Na6 b8R Rf8 h8B+ Kg8 b7 Bg7 Rh7 Qb6 d8B Qa5 Bd7 Bf2 e8Q Bg3+ Ke6 Bf4 d6 Qc7 Bf6 Na5 Qd2 Be5 Bd1 Be2 Ra8 Bh6 Re7 Nb8 Qf4 Ra6 Qg4 Rc6 Qf5 Rc3 Qg4 Nbc6 b8Q Re3 Qbb4 Nb8 Qbe4 Qb7 Qd8 Bh2 Qb6 Rf7 Qa6 Bf8 Qc4 Rh7 Qa4 Rh6 Qa3 Nac6 Ra4 Na5 Rb1 a1R Qa2 Qa7 Rb2 Bb7 Bc6 Bc8+ d7 Bd6 Bb5 Rb1 Bd3 Rf3 Be3 c1N Rd2 Qc7 B3c2 Qa7 Nd4 Rb6 Nb3 Rc6 Bf4 Rcc3 Rdd4 Rce3 Rd5 Bca6 d8Q Bf1 Qd7 Bae2 Qc6 Bh3 Rd2 Bc7 Rd8 Bd6 Qd5 Qc7 B4e5 Qa7 Bb2 Qb7 Nc5 Ncb3 Bc1 Nd2 Nb3 Qc7 Ree8 Qh7 Re7 Na6 Kd7+ Qf7 Qdd4 Qh7 Kc8 Nb8 Qdd5+
n6N/KN2qp1N/1N6/R4nrR/1r1bQP1b/Q2bNQ1B/2r1R2R/2n1r2k b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e5 d4 Qf6 d6 Qh6 d5 Qf6 Be3 Qd8 Bd4 exd4 Kd2 Kd7 Kd3 g5 Kc4 a5 Kc5 c6 e4 a4 f4 g4 h4 d3 b4 d2 h6 g3 e5 g2 h5 a3 h7 a2 b6 Bh6 b5 Qh4 e6+ Ke8 d7+ Ke7 d8R Kf6 b7 Kf5 Kb6 Ke4 d6 c5 e7 c4 e8Q+ Ne7 d7 c3 Nf3 g1R Na3 c2 Nc4 c1N Ne3 Bg5 h6 Na6 b8N Nc5 Bh3 Ne6 Rh2 Ng7 Re2 Rf8 h8N Ne6 h7 Ra3 Qf1 Rd3 Ka7 d1R b6 Rd4 b7 Nf5 Qe7 Rg2 Qa3 Rb4 Re8 Rg4 d8N Re1 Nd7 Rg3 b8R Ba6 Rg2 Bd3 Nb6 Be7 Nb7 Nc7 Rbd8 Rg5 Rd5 Na8 Ra5 Rfg8 Rb1 a1B Qe2 Ra4 Rb5 R8g6 Qf2 Rc6 Qf1 Rc2 Rc5 Rg6 Qe2 Rb4 Ng5+ Kd4 Qf3 Bd8 Ne4 Qe7 Nf6 Rg7 Ng6 Rg8 h8Q Bc3 Qh4 Bb2 Nh8 Rg5 Nh7 Ba1 Qe2 Ke4 Qhh5 Bd4 Qg6 Be5 Qf1 Bd4 Qh1 Kf3 Qe6 Rf2 Qe4+ Ke2 Nf6 Rg4 Qc6 Qd6 Rg3 Ne7 Rh5 Nf5 Nh7 Bh4 Rg8 Qe7 Qce4 Rg6 Rc8 Rg5 Rg1 Rfg2 Rc7 Kf2 Rc2+ Re2 Re1 Kg3 Qf1 Kh2 Qff3 Rgf2 Rg1 Re1 Rg2+ Kh1 Ra2 Rc2 Rb2 Rc6 Rbe2 Rc2 Rh2+
r2NB1NQ/1n2BpBr/1rBR1P2/Q3b2q/p3B1k1/K2N3b/4n1r1/1Q4Nr b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 e5 b4 Nh6 d4 Bf5 d6 Ng8 d5 Bg4 Ra3 Be6 Rd3 Bc8 Rd4 exd4 Kd2 Kd7 Kc2 a5 Kb2 h5 f4 c5 g4 a4 e4 d3 g6 d2 b6 h4 e5 c4 f5 c3+ Ka3 h3 e6+ Ke8 f6 c2 e7 Kd7 b5 h2 b7 Rh4 g5 Rh6 g7 Rh5 g6 Rh3+ Nc3 Rg3 b6 Rf3 Bb5+ Nc6 b8Q Ra5 b7 Re3 Qa8 Re2 b8Q Rg2 Ne4 Nh6 g8B Nf5 g7 Ng3 Bh7 Ne2 g8N Qc7 Qe1 d1R Bh6 c1R Bg7 Rb1 Nf2 Ra6 Be4 Qa5 Qb6 Ra7 Qab8 Ra8 Nd3 Rb2 Qc3 Rf1 Qc2 Rf3 Qd1 Rh3 Qb1 Rh7 Qa6 Qe1 Qa5 Qh4 Qae1 Qh5 e8B+ Kd8 Qb4 Na5 d7 Nb7 Bc6 Bd6 Qc5 Be5 Qca7 Rb6 Qa5 Ra6 Qa8 Kc7 d8B+ Kd6 Be7+ Kc7 Qa7 Bh3 d6+ Kc8 d7+ Kc7 Bd8+ Kd6 Qb8+ Ke6 Be7 Ra7 Nf3 Raa6 Rd1 h1R Ng1 Ra7 Bed5+ Kf5 d8N Kg4 Be4 Ba1 Nc1 Ra8 Rd6 Bc3 Nd3 Be5 Nh6+ Kg5 Ne6+ Kh4 Bed7 Bh2 Qh8 Kg3 Ng8 Kg4 Be8 Be5 Nd8
N5rn/3b2Bb/1n5p/1Bk4q/1b2Q2P/BQ2BnK1/Qnp2RN1/4QNBr b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 Kd7 f6 Ke8 b4 Be6 f5 Bd7 Ra3 Be6 Rf3 Bc8 Rf4 gxf4 Kf2 Kd7 g4 Kd6 h4 a5 d4 c5 g5 e5 b6 a4 b5 a3 g6 e4 g7 h6 b7 f3 f7 a2 f6 a1N b6 e3+ Kg3 e2 Qe1 c4 Nh3 f2 Nd2 c3 Rh2 c2 Nf4 Qd7 Ng2 Nc6 b8B+ Qc7 b7 Be6 Ba7 Be7 f8B Qc8 b8Q+ Qc7 f7 Nf6 g8Q Nb3 Bg7 Nc5 f8B Na4 Qb3 Nd7 Qh7 Bh3 Qe4 Rg8 Qa2 Ndb6 Qb3 Kd7+ d6 Nd8 d5 Nf7 Ba3 Be6 Bc5 Bf5 Be3 Bh7 Qa2 Qc5 Qb3 Kd8 d7 Kc7 d8N Kd6 Ne6 Nh8 Nc7 Nb2 Qa2 Rd8 Na8 Qb5 Qb3 Qe8 Qa2 Qh5 Qb3 Kd7 Qa2 Bb4 d6 Re8 Qb3 Re5 Be7 Rd5 Qa2 Kc6 d7 Kb5 d8Q Rd3 Qeb1 e1N Qb8 Nf3 Be2 f1B Qe1 Bc3 Ba3 Bb4 Qd4 Kc6 Qe4+ Rd5 Ba6 Bb5 Nf1 Ba4 Qb7+ Kd6 Bb5 Rd1 Qbf7 Rb1 Qfb3 Rd1 Bd3 Bd7 Bb5 Ra1 Nf4 Rc1 Rf2 Ra1 Ng2 Rd1 Bd2 Kc5 Be3+ Nd4 Bb8 Qf7 Kh2 Qf4+ Ng3 Bh3 Qd2 Qg5 Bbe5 Rf1 Qe1 Bd7 Bb8 Rg1 Nf1 Qh5 Bbe5 Bc6 Kh3 Rh1+ Bh2 Be8 Kg3 Bd7 Bf4 Nf3 Bg1 Bhf5 Bd2 Bh7 Be3+
R2R3R/1p1B1r1r/n3NQ1b/QB1B2qR/1p2p2b/2krP2Q/K1b1n3/2BB4 b - - 0 1 illegal: No proof kernel
n5k1/Qp5R/2rQN3/N1r1Q1Kp/p2bB2B/1BQqn1BN/1P2b3/3bn1Q1 b - - 0 1 illegal: No proof kernel
4R3/Q2Q2p1/2N1b1rp/1Kbp2R1/1N5k/2rB1R1P/Q1RQ1q2/QqN2qnn b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 f4 d6 f3 gxf3 Nd7 f4 Nb8 f5 Bd7 Qa4 Be6 Qd1 Bc8 d4 c6 d7+ Kf7 Ra4 Qc7 d8N+ Ke8 Ra1 Qb6 d5 Nh6 d6 Ng8 Bf4 Nf6 Nb7 Ng8 d7+ Kf7 Bd6 exd6 Nd8+ Ke7 Kd2 Kf6 Kc3 Kg5 Kc4 a5 e4 c5 b4 a4 f4+ Kh4 f6 a3 h3 a2 f5 h6 f7 Ra5 e5 Bb7 f6 Bc8 e6 Bb7 e7 Ra6 e8Q Qc6 b6 Kg5 b5 Ne7 Bd3 Ra3 Nc3 Ng6 Nge2 Kh4 Rc1 a1Q Rg1 Ra6 Nd5 Qb1 Rg5 Ne7 Rc2 Nf5 Nb4 Qf3 Ndc6 Bc8 d8Q Qf2 b7 Ng3 b6 Nd7 b8R Nh1 b7 Ne5+ Kb5 c4 Qed7 c3 Nc1 Nf3 Ra8 Be7 b8Q Ng1 f8Q d5 f7 Rg8 Qa5 Bc5 Qa1 Rh8 Qfd8 Rf8 Qda7 Be6 Qdd7 Rc8 f8R Rc7 Qd2 Rc8 Ra2 c2 Qh2 Rc7 Rae8 Rc8 Nb3 c1Q Rc2 Qcf1 Nc1 Rc7 Ne7 Rcc6 Rff5 Ra3 Rf3 Rc3 Qg2 Bg8 Qh2 Rg6 Nc6 Bf7 Q1a2 Be6 Qe5 Ra3 Qeb2 Rc3 Qba1
K1b4r/NQqN4/r2Rp2N/R6N/1b1n2BR/b3P3/pqQ1npk1/1Q3R1N b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 Kf2 Kd7 Kf3 Kd6 Ke4 a5 h4 c5 d4 a4 b6 c4 e3 a3 b4 g4 b5 f6 b7 g3 h5 c3 h6 c2 h7 c1B b6 g2 Be2 Bg4 Nc3 Bd2 Qc2 Qe8 Nh3 g1Q Nf2 Ra5 Nb5+ Kd7 d6 Ke6 d5+ Kd7 Na7 Qh2 Rhf1 Qg1 Nh1 Na6 b8Q Qc8 b7 Nh6 g8N Qf2 g7 Nf5 Nh6 Nb4 g8N Nd3 Qa8 Bh3 Bg4 Qc7 b8Q Qh2 Qbb1 Nf4 Qab7 Ra6 Ra2 Bb4 Ra1 Kd8 d7 Nd4 Ra2 Qc6 Ra1 f5+ Ke5 Qf2 Nf6 Nfe2 Nh5 f4 Ke4 f3 Ke5 Rg8 h8N Qc3 Ng6 Rh8 Ke4 Qg3 Ne5 f2 Qa8+ Kc7 d8R Ra4 Nd7 Kd6 Qb7 Qb2 Rc8 Qh2 Rc5 Ra6 Ra5 Qg3 Ra2 Qa1 Rb2 a2 Rb3 Ba3 Rb4 Qe5+ Kd3 Qb2 Kc4 Nb3 Kb5 Qg3 Nb6 Ke5 Kc6 Nbd4+ Kc7 Qf4 Kb8 Qf7 Ka8 Qh7 Bf3 Bc8 Bg4 e6 Rba4 Bfc5 d6 Qc7 d7 Bb4 d8R Ba3 Rc4 Bb4 Rc3 Ba3 Rd3 Bb4 Rd5+ Ke4 Nd7 Ba3 Ra4 Bcb4 Rda5+ Qc6 Bh3 Kf3 Bg4+ Kg2 Rd2 Nf3 Rd6 Qc7 Bf5 Bd2 Rh4 Bdb4 Qb6 Nfd4 Bg4 Qcc3 Qb8 Qc7 Qb7+
1Q4k1/1p1bQ2q/NQ6/1b2R1r1/3bpp1Q/3rn1NQ/4RP1N/N1bnBRK1 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 d5 exd5 a4 Bb5+ c6 b3 cxb5 bxa4 Ra6 a5 Ra8 Kf1 g5 c4 f5 a4 Kf7 h4 e5 d4 g4 d6 f4 c5 e4 h6 g3 d7 b4 d5 b3 a6 b2 a5 Qc7 d8R Nd7 a7 Qb6 a6 Ngf6 h5 Kg8 c6 Qb3 h7+ Kf7 d6 Nd5 h6 Qa2 c7 Qa5 Nd2 b1B Ngf3 g2+ Kg1 Rg8 h8Q Qa4 h7 N7b6 d7 Qa2 Rh5 Rg4 Re5 Bd3 Nb3 Ne7 Bd2 Rg6 Nh2 Rg3 Be1 Rg5 Qb1 Na4 Qb2 Rb8 a8N Nd5 a7 Ne3 Rd1 Bb4 Na1 Bd2 Qb6 Nb2 Qe8+ Kg7 Qe7+ Qf7 h8N Bc1 Ng6 Bf1 Nh4 Bb5 Nf5+ Kh7 Rd2 Nbd1 Ng3 Qg7 Rg8 Qf7 d8Q Bcd7 Re2 Qg7 Qdf8 Rd8 c8Q Qf7 Rg6 Qg7 Qff6 Kg8 Rh6 Qh7 Rh5 Bg4 Qc3 Rd3 Nc7 Bh3 Na6 Bhd7 Ng4 Rg6 Qh4 Rg5 Kh2 g1B+ Kh1 Be8 a8Q Bh2 Qb8 Bd7 Nf1 Bg3 Kg1 Bb5 Ngh2 Bd7 Qh3 Bh4+ Ng3 Rg4 Rh6 Bf6 Qh4 Rg5 Qcc8 Bb5 Qch3 Bd7 Rb5 Bd4 Re5 Bc8 Rc6 Bcd7 Rcc2 Bb5 Rb2 Bd7 Rb1 Bb5 Qec5 Nc3 Qb4 Ba3 Bd2 Bb2 Rd1 Bc1 Rf1 Ncd1 Bc3 Bd2 Qe7 Bc1 Q8d6 Bec6 Be1 Bd7 Qb8+
KQRbQB2/Q1B4Q/6b1/NpR1R2b/4p1rp/4pQRP/n1B1n3/2kq1r2 b - - 0 1 illegal: No proof kernel
N1bn1R2/2knrQ1K/2q1rNQp/5p2/1R2R2Q/b2rp2P/pN2N3/1B2Q1N1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Nf6 e4 Na6 exf5 Ng8 f6 Nb8 f7+ Kd7 f4 e6 b3 Ba6 f5 Ke7 f6+ Kd7 Bb2 Bd6 f8N+ Ke8 f7+ Ke7 Be5 Bc8 Bf6+ gxf6 Ke2 c5 Kd3 a5 Ke4 a4 d4 a3 g4 h6 g5 c4 g6 e5 g7 a2 h3 c3 b6 c2 b4 c1R b5 Rc4 b7 Bd7 b6 Rc5 Nd2 Be6 Ng6+ Kd7 f8Q Qe7 Qe1 Ra7 Qf7 Rb5 Bd3 Bg4 Nc4 Ra8 Rb1 Rc5 Rb4 Nc6 b8Q Na5 b7 Nc6 Bb1 Be2 Kf5 e4 Nf4 Bh5 Nfe2 Ra3 Qbe8+ Kc7 b8N Bf4 Nb2 Bc1 Nd7 Na5 Nb6 Bg4+ Kg6 Rd3 d6+ Kb7 d7 e3 d8Q Qd7 d5 Rh7 d6 Nc6 Re4 Re5 Qde7 Qc7 d7 Re6 d8R Qd7 Rc8 Nd8 Rcc4 Kb8 Rb4 Qc6 Rh2 Red6 Rg2 Bc8 Rg3 f5+ Qef6 Ne6 Qh4 Nf6 g8N Nd7 Nf6 Nd8 Rg2 Re6 Qeg8 Rh8 Qgg7 Rf8 Kh7 Rfe8 Qgg6 R8e7 Qgh5 Rd5 Nd1 Kc7 Rg8 Bd2 Qg6 Bc1 Rf8 Ba3 Nb2 Rd3 Na8+
rnQbk2N/3p3B/1nRB3b/2NNNprp/Q5Q1/pq1b3B/3P3K/1N4Q1 b - - 0 1 illegal: No proof kernel
rQ2B3/1q1R1Q1b/Q5Rp/N5N1/kbrqNK2/2Q1p2R/2npR1pP/5Rn1 b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 f5 axb5 Bb7 g4 Bc8 gxf5 c5 d4 Qd6 Be3 Qc7 d6 Qd7 d5 Qd8 Bd4 cxd4 Kd2 Kd7 b4 e5 f4 g5 c4 a5 f6 a4 f5 e4 b6 h6 b5 g4 c5 a3 b7 g3 f7 d3 Ke3 g2 b6 d2 f6 a2 Qc2 Qe7 c6+ Kd8 d7 Qe8 Nh3 Bd6 f8R Ba3 f7 Ra7 c7+ Ke7 d8N Kd6 Qc3 Ra4 Bb5 Bb2 Kf4 Ra3 Ng5 e3 Rf1 Na6 b8Q Nb4 b7 Ra8 Nc6 Qd7 Na5 Ba3 Ba4 Qe7 Be8 Bf5 c8Q+ Qc7 Re1 Bh7 Re2 Ne7 Rg8 Nc2 f8R Nf5 Qa7 Nfd4 b8Q Bb4 Rf5 Nf3 Rg6+ Ke7+ Re5+ Kf8 d6 Ng1 d7 Qb7 Rb5 Ke7 d8R Rf8+ Rf5 Rf6 Qa6 Rc6 Qcc4 Rc5 Nc3 Rc6 Rd1 a1Q Nce4 Qd4 Rf1 Rc7 Qc3 Rc4 Qba7 Qb6 Rd3 Qd4 Qce6+ Kd8 Qf7 Kc8 Rf3 Kd8 Rh3 Kc8 Qfe6+ Kc7 Qf7+ Qd7 Rdd5 Ba3 Kg4 Bb4 Qff6 Qd6 Rf1 Qb6 Kf4 Qd4 Qae6 Rc6 Qb8+ Kb6 Rd6 Kb5 Qef7 Ka4 Rd7 Rc4 Qa6
1bBr2B1/2k3np/Q7/1R2p2b/pq1N1nB1/p3q1QB/1Q1R3P/KQB2rR1 b - - 0 1 illegal: No proof kernel
Q3BB2/1rNK3p/p3p1B1/2R1Brb1/PQ2R1RR/2nQp3/k3pn2/q4bR1 b - - 0 1 illegal: Other
1bq3nb/2N1n1R1/1k2R2n/1qB1R2N/q6N/P1R1NqrQ/b2KR2R/7R b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 h5 g5 b5 f5 Ra6 Be2 Rb6 Bg4 Rf6 gxf6 hxg4 d4 c5 h4 Kc7 d6+ Kb7 d7 e5 a3 g5 a6+ Ka7 h5 b4 d5 e4 d6 e3 h6 g3 h7 g2 Qb3 g4 Ra2 e2 Nf3 g1B Bf4 c4 Kd2 e1N Nc3 g3 Nd5 g2 Nh4 Qc7 d8R Qa5 d7 Qb5 Ne3 Nc6 Bd6 Nc2 Re8 Qa4 d8R N2d4 Rd7+ Kb6 a7 Bh2 Re6 Bg7 f8N g1Q f7 Qg3 f6 Nce7 Nfg6 Ndf5 f8R Nfh6 f7 Qf3 Re8 Ba1 Qc3 b3 f8R b2 Nf4 b1Q Nh5 Qbb5 Rc2 Bb7 Rf5 Bd5 Rfe5 Bf4 Qd3 Bd4 Qf1 Bb2 Qh3 c3+ Ke1 Ba2 a8N+ Ka6 Nc7+ Kb6 Re2 c2 Rc8 c1Q+ Nd1 Nc6 Rg7 Nce7 Rhh2 Qcc6 Ne3 Qb7 Kd2 Qba8 Re8 Qc8 Rc5 Bfe5 Rc3 Qac4 Rg3 Nf6 Rh1 Rf8 h8R Qba6 Rhg8 Qcb7 Rgg2 Qfe4 Ra8 Nfg4 Nb5 Qbc8 Rd3 Qca4 Rgh2 Rf3 Bb4+ Bd6 Rgg6 Bh8 Rc3 Nhg8 Rg7 Rg3 Ra7 Qf3 Rg5 Nc6 Rag7 Bb8 Nc7 N4h6 Rge5 Q6b5 Bd6 Nce7 Bc5+
Nkb3K1/B1p5/1NQ5/nrNN4/2NbRb1N/1BnB3q/2r1NB1P/3n1r2 b - - 0 1 illegal: No possible last move
Nn4k1/Rr5b/5n1p/6B1/1BQrq1N1/KnNB3n/P1B3n1/1N2NNNq b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 bxa3 Na6 a4 Nb8 a5 Be6 Be2 Bh3 Bf1 Bc8 h4 Nh6 g4 Na6 f5 Rg8 Na3 Nf7 Rb1 Bg7 Rb4 Nb8 Rf4 gxf4 g5 Rh8 g6 Nh6 Ba6 Ng8 Be2 Bh6 Bf1 Bg5 hxg5 Ra6 Rh3 Ra7 Rh1 Ra8 d4 Kf8 Kd2 b5 Kc3 e5 Kb2 c5 g7+ Kf7 g6+ Ke8 a6 b4 d6 f3 f7+ Kd7 f8B Ke8 a7 f2 f6 b3 f7+ Kd7 d5 e4 Bg5 e3 Bd3 f1Q Qc2 e2 Qc4 e1N Nb1 Qb6 Ka3 Nf6 g8N b2 g7 Kd8 d7 Qe6 Nh6 Rg8 Nf5 Qf4 Ng3 Ng2 Nf1 Qee4 Rh2 Rh8 g8B Qff3 Rh4 h6 Bh7 Qh3 Bd6 Ba6 f8N Qh1 Ng6 Re8 Nf4 Re7 Nfe2 Bc8 Qa4 c4 Bb4 c3 Qc6 c2 Qc4 c1N Nec3 Nb3 Bc2 Qe3 Bhd3 Re4 Rf4 Rd4 Re4 Ba6 Re7 Qe4 Rg7 Nc6 Re7 Rb8 a8N Rb7 Be2 Ng8 Qd3 Ra7 Nbd2 Bc8+ Qa6 Nf6 Rg7 Rc7 Qc4 Nf4 Rh7 Nb8 Rf7 Rc5 Bed3 Nh3 Rf8+ Ke7 d8N Qg4 Ne6 Qge4 Nf4 Bf5 Ng2 Bh7 Rf7+ Ke8 d6 Rb5 Re7+ Kf8 Ra7 Rb7 d7+ Kg7 d8N b1N+ Ka4 Kh8 Nf7+ Kg7 Ne1 Kg8 Nd1 Nc3+ Ka3 Ncd5 Nb1 Ne3 Ndc3 Ng2 Ne5+ Kh8 Ng4 Kg7 Qb5 Kg8 Qc4+
R2BB1NQ/3nR3/1Rpk4/3rR3/KbRr2bb/1rB1r1b1/1P6/RB1nR3 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 f5 c4 d5 cxd5 f4 a4 h6 axb5 Qd7 Nc3 Qf7 Ne4 Qf5 Ng5 hxg5 gxf5 g4 e4 Kd7 d4 a5 Kd2 g5 Kc2 g3 Kb3 g2 h4 c6 e6+ Kd6 e5+ Kc7 f6 g4 f7 f3 e7 g3 e8B f2 d6+ Kb6 d5 Kc5 h5 Bd7 e6 Rh7 h6 Rh8 b6 Ne7 h7 Bg7 f8R Ra7 b7 Nf5 e7 Bc8 d7 Bc3 d8R Bb4 d6 Nd7 b8R Rb7 Nf3 g1B Nh4 g2 Qh5 Bh2 Ka4 g1B Ng6 Bg3 Bd3 f1R Bd2 Rf3 Bc3 B1f2 Bb1 Re3 Rf7 Bh4 Rg1 Bfg3 Re1 Rg8 h8R Kd5 Nf8 Rg4 Nh7 Rd4 Nf6+ Ke5 Rg7 Rb5 Rb6 Rd5 Ng8 Ke6 Kb3 Ke5 Rg4 Ke6 Rh7 a4+ Kc2 a3 Kb3 a2 Ka4 Nb8 d7 Kd6 Bd2 Rb3 Bc3 Ne3 Rf7 Nd1 Qh8 Re5 Rf5 Re3 Re5 Rd5 Rc4 Rd4 Beg6 Rd5 Rf8 Rd4 d8B Bg4 e8R Nd7 R8e7 Rd5 Bbf5 Rd4 Be8 Rd5 Rc1 Rd4 Bb1 a1R+ Ba2 Nf2 Rff5 Rdd3 Ra5 Rd5 Rfe5 Rb1 Ra8 Ra1 Rc2 Rad1 Rc1 R1d4 Ra1 Nd1 Bb1
3N4/2p2N2/NRP1Kb1r/n1b1Brqk/5Qnn/1NBB1pNq/3NB1N1/7b b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h5 g4 Ne7 g6 Ng8 b4 Nc6 g5 Nb8 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kf2 f5 Ke3 a5 Kf4 d5 c4 a4 h4 g3 e4 d4 c5 d3 b6 a3 b7 d2 g7 Kf7 e6+ Kg6 Ke5 g2 c6 f4 b5 f3 e7 a2 e8B+ Kh7 g6+ Kh6 h5 a1N b6 Qd7 Qa4 Nc2 Ne2 g1B Nf4 d1Q Bb2 Qf7 Bc3 Ne3 Be2 Kg5 h6 Qdb3 h7 Be7 Nd2 Bd8 Ng2 Nh6 g8N Qd7 g7 Be7 Bg6 Qh3 Nf6 Rf8 h8B Ng8 Nh5 Be6 Ng3 Bf2 Rb1 Na6 b8N Bd7 b7 Nf6 g8N Rc8 Nh6 Qg8 Rb6 Nc5 Na6 Nb3 b8N Rf8 Nc5 Na5 Nba6 Nf5 Ncb3 Bfc5 Nf7+ Kg4 Bg7 Nh4 Nd8 Kg5 Qc4 Rb8 Qf7 Ng4+ Kd5 Bc8 e5 Bf6 e6 Bd7 Bh8 Kh6 Bb1 Qg5+ Be5 Rc8 e7 Bf5 e8N Bd3 Bd1 Bf1 Bd3 Ra8 Ke6 Rc8 Ne3 Bg2 B1e2 Bh1 Ng2 Rb8 Qd7 Ra8 Qd4 Rb8 Nd6 Rf7 Ngf5+ Kh5 Qf4 Rh7 N6f7 Rh6 Nb7 Rd8 Bc3 Rd5 Nbd8 Kg6 Ng3+ Rf5 Bc4 Bfe7 Bhe5 Bf6 Ngf1 Kh5 Bb5 Ng6 Bbd3 Nh4 Ng3+
2BqN2q/R3qb2/R1R2BN1/N1B5/K3n1B1/4n2b/R2P3B/1bR1rqk1 b - - 0 1 legal: proof: c4 a5 b4 f5 a4 d5 cxd5 b5 e4 Be6 exf5 Kf7 Qb3 Bc8 axb5 Ra6 b6 Ra8 b5 Ke8 Qb4 axb4 g4 g5 f4 Bh6 h4 Nc6 f6 Na5 f7+ Kd7 f5 Nc6 Bb2 Nb8 Bc1 Ra3 f6 Rf3 Bh3 Rf5 gxf5 g4 Bf1 Bg5 hxg5 Qf8 Rh6 Qe8 Rh1 Qd8 Kd1 Kd6 Kc2 Ke5 Kb3 Ke4 f8R h5 f7 c5 f6 e5 b7 g3 b6 c4+ Ka4 h4 g6 h3 d6 h2 d7 g2 g7 b3 Bb2 c3 Nh3 Kf3 Ng5+ Kf2 Ne6 g1Q Nc7 e4 Ba6 e3 Ne8 e2 Na3 e1Q Nc4 c2 Ra2 c1Q Na5 Nh6 g8B Qdc7 d8R Ng4 Rd6 Rh7 Rc6 Nd7 b8B Qc3 b7 Qe7 Ba1 Qb1 Rc1 h1B Bb2 Qcd8 Bh2 Qh3 b8R Ne3 Ra8 Bd5 Ra7 Rh5 Bh7 Re5 Bf5 Qh8 Bg4 Re4+ Bd4 b2 Rg8 Kg2 f8N Bf7 Rg6 Qd3 Rh6 b1B Ng6 Qf1 Bb7 Bg8 f7 Nf6 f8B Bf7 Ba6 Re5 Bg7 Ne4 Bf6 Re6 Bc5 Bd7 Bc7 Kg1 Bc8 Re5 Bf3 Bh3 Bfg4 Re6 Bh2+ Kh1 Nf4 Nd5 Rcc7 Nf2 Bh4 Re1 Rha6 Ne4 Bf6 Ne3 Ng6 Kg2 Rcc6 Kf2 Bc7 Kg1 Bh2+
BR2B1r1/2K2n2/1R4P1/1b2rb2/3NbkRb/1RB2n2/BrqbQ1R1/4B2R b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 Nc6 c4 Bb7 cxd5 Bc8 Na3 Ba6 Nc2 Nb8 axb5 Bb7 b6 Ba6 b5 Bc8 Nb4 axb4 Kf2 Ke7 Ke3 c5 Ke4 h5 d4 h4 g4 h3 d6+ Ke6 d5+ Kd7 b7 c4 b6 h2 g6 f6 e6+ Ke8 g5 f5+ Ke5 c3 e4 c2 e7 Kd7 e8R f4 g7 b3 g6 f3 Bb2 c1B Re6 f2 Qe2 Rh6 Bg2 f1R Ra2 Rh8 Bc3 b2 Nf3 b1B Nd4 Nh6 g8B Re1 Bf7 Na6 b8R Nb4 b7 Rg8 Rf6 Bd2 Be6+ Ke8 d7+ Ke7 Bf3 Qa5 d8R Qa4 Rf4 Ra5 Rg4 Rb5 Rd6 Bd3 Rb6 Nc2 Bg2 Rb2 d6+ Ke8 d7+ Ke7 Kd5 Kf6 d8B+ Be7 Bf3 Qb3+ Kc6 Ke5 Kc7 Bh4 Be7 Bb5 Beb4 Nf7 Bg2 Rbb1 Rb2 Qa4 Ba2 Bf5 Rb3 Rb2 Rd8 Ra1 b8R Ne1 Bf3 Rab1 Rg2 Kf4 e5 Rc1 Ba8 Nf3 e6 Ra1 e7 Re1 Rhg1 h1B e8B Bg4 Rd5 Be6 Rh5 Bf5 Qc4 Re5 Qe2 Bc1 Be1 Be3 Bbc3 Bd2 Ra3 Qc2 Rb3 N3g5 Rh2 Bhe4 Rhg2 Nf3 Rhg5 Rf8 Rh1 Rg8 R5g4+
bbkrR2R/q1b1N1NK/1Rn2Q1n/7N/P2n3p/1b3Nn1/N3R1B1/3NR3 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 g4 Bh6 h4 Qd6 Bb2 Bf8 Be5 Qd8 Bf4 gxf4 g5 Qd7 Nf3 Qd6 Ng1 Qd8 g6 b5 Qe2 Ra6 Qd1 Rb6 Bc4 Rc6 Bf1 Rc3 Rh3 Rg3 Rh1 Rg5 hxg5 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Kd7 Kd3 e5 Ke4 h5 d4 c5 a4 c4 f7 h4 g7 c3 d6 f3 a6 f2 g6 c2 f6 c1N Kf5 b4 a7 e4 a8R e3 d5 e2 Qd4 e1B Ra6 b3 Bg2 f1N Rh2 b2 Nc3 Nb3 Rb6 Nbd2 Nf3 Bg3 Nd1 Be7 f8N+ Ke8+ Ne6 Kd7 f7 Qe8 f8R Nc6 Qf6 Qd8 Re8 b1B+ Kg5 Nh6 g8N Nb3 g7 Ba2 Kg6 Bf8 Ne7 Nf7 g8N Bb7 Ng7 Rh5 Rb1 Nh6 Kh7 Be5 Kg6 Qc7 Nef5 Ba8 Ng3 Nb4 Nc3 Nf5 Bh1 Na6 Re2 Nh6 Rbe1 Nb4 Bg2 Nc6 Nd1 Qb8 Re3 Be7 R3e2 Bd8 Ne7 Bf4 Kh7 Rf5 N3h5 Ng4 Rh8 Nh6 Ng6 Kc8 d7+ Kc7 Rb5 Ng3 Rb6 Qb7 d6+ Kb8 Rg8 Nbd4 Rh8 Re5 Ne7 Nb4 Nd5 Bb3 N5c3 Re8 Na2 Nbc6 Rf8 Bc7 Rh8 Rc8 d8R Be5 d7 Bcd6 Ra6 Qa7 Rdf8 Kb7 Re8 Bb8 Rb6+ Kc7 Nf5 Bd6 d8N Kd7 Ne6 Bdc7 Neg7 Rd8 R8e7+ Kc8 R7e3 Kd7 Ree8 Kc8 Ne7+
q6B/3bBpbB/8/1b4K1/pR1PQ1RB/3R4/R2B3n/rNnBqkRr b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 b4 h5 gxh5 c6 b6 Qc7 Nc3 Qd8 b5 c5 Na2 Qf6 Nb4 cxb4 Nf3 Qd6 Ng1 Qd8 Kf2 Kd7 Kg3 a5 Kg4 g5 e4 b3 h4 b2 d4 b1B d6 Ke6 b7 Ne7 b6 Bd3 h6 Na6 b8R Be2+ Nf3 Ng8 h5 Bd7 h7 Bd3 b7 Qe7 h6 Bc4 Nd2 Nb4 Ra2 Qe8 Qe2 Na6 Nb1 Qe7 Bd2 Nc5 Rg1 Bc6 d7 Ba6 d8B Qf6 Be7 Bab5 Qf3 Nb3 Bd3 Kd7 e6+ Kc7 e5 Kb6 Bf5 Nc1 Qe4 Bd7 Re8 Bg7 b8R+ Ka6 Rec8 Qg6 Rc3 Ra7 Rd3 Nf6+ Kh3 g4+ Kh4 g3 Rb7 Re8 h8B g2 h7 Ng4 Rb8 Nh2 Rb7 Bh6 Bhf6 Qg8 h8B Bg7 Kg5 Rc8 Rb8 Rc6 Rb7 Qa8 Bh7 Rc2 Ba3 Rc6 e7 Rd6 e8B Rb6 Bd8 Rh6 e6 Rh4 e7 Rh3 Rh1 g1Q+ Qg2 Qe1 Rg1 Rf3 Qe2 Rf1 Rg4 Rh1 Qe4 Bbc6 Rbb2 Ba4 Bab4 Kb5 Bd6+ Kc4 Bg3 Nb3 Bh4 Nc1 Rb8 Bdb5 Bc6 Ra6 e8R Ra7 Bb7 Bd7 Re5 Bab5 Be7 Qe2 Qg2 Ra6 Ra1 Ra7 Bf3 Bbc6 Rdb3 Ra6 Rf5 Qe1 Bd1 Ba4 Rf1 Ra7 Re3 Ra6 Ree4 Kd3 Rb4 Bac6 Rg1 Bb5 Bc3 Ra7 Ref4+ Ke3 Rf2 Ra6 Ra3 Ra7 Qc6 Ra6 Rfg2 Ra7 R2g3+ Kf2 Bd2 Ra6 R1g2+ Kf1 Qe4 Rc6 Rge3 Rc3 Raa4 Ra3 Rd3 Ra1 Ra2 a4 Rg1+
Q1r4b/3R1n2/B2b1kR1/2p4R/qb4Kb/3NNrNR/P3p1N1/1NR1Rn2 b - - 0 1 illegal: No proof kernel
1q1rk1RR/rQ1N1R1b/B1p2bN1/2Pn2bR/4rq2/6NK/3NN2R/2Rn3b b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Nc6 g5 Nb8 g6 Qf6 Be3 Qd8 Bg5 hxg5 Kf2 f5 Kg2 d5 h4 a5 e4 c6 b4 d4 c4 a4 e6 d3 e7 f4 e5 a3 c5 a2 b6 d2 b7 g4 b5 g3 b6 Kd7 e8N f3+ Kh3 g2 e6+ Ke7 h5 f2 h6 Qd6 h7 Qd8 Nf6 Ra7 Nh5 Nh6 g8R Nd7 b8N Nf6 b7 Ke8 g7 Nf5 e7 Nd5 Nd7 Nfe3 Ne2 g1R b8R Rg4 Rb7 Re4 Qb3 d1B Rh2 Qc7 Qb2 Qb8 Nhg3 Bb3 Nd2 Nd1 Rb1 a1B Rc1 Ba2 Qb4 Bf6 Rc7 Ba6 Qb3 Bd3 Qb7 Kf7 e8R B8e7 Rec8 Bg5 Rge8 Bef6 Re5 Rd8 g8R Bb3 Rf5 Ke7 h8N Bbc4 Nf8+ Ke8 Rf7 Bb1 Nhg6 Bca2 Bg2 f1Q Rh8 Qff4 Bf1 Bh4 Rfh5 Bhg5 Ng1 Bb3 Ba6 Bc4 Rg8 Be2 Rgh8 Bf3 N1e2 Bh1 Rg7 Nb2 Rgg8 Nd1 Rc7 Bd3 Rf7 Ra4 Ne7 Bh7 Neg6 Re4 Nd7+
3qR2N/1RbNN3/1n2kn2/Nq1N3r/1rq1p3/4RbQ1/1NR1PqB1/1n1KR3 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 h4 Kd7 d4 c5 h5 e5 d6 f5 b4 a5 h6 f4 d5 f3 h7 e4 b6 c4 b7 c3 b5 g4 b6 g3 Nh3 c2 Nd2 c1N Nf4 a4 Ra3 g2 Nc4 g1Q Qd3 f2+ Kd1 Qe7 Qg3 Qe8 Re3 a3 Nb2 Nf6 g8N a2 g7 a1Q Ne7 Qa5 g8R Qd8 Rg5 Qh2 Bg2 Na2 Re1 f1Q Rf5 Qb5 Rh5 Nc6 b8R Qf2 b7 Ra4 Rh6 Na7 Rh3 Rg8 h8N Rg5 Rc3 Bg7 Rc5 Rh5 Rc2 Ke8 d7+ Kf8 d6 Nc3+ Kc1 Rb4 Nfd5 Nb1 Kd1 Qfc5 Nc7 Qcc4 Ncd5 Qdc7 d8N Bg4 d7 Bf3 Ndc6+ Qd8 Na5 Nc8 Rh1 Nb6 Re1 Qe8 d8R Bh6 Rbc8 Bf4 Rd7 Qd8 b8N Bd6 Rb7 Bc7 Nd7+ Ke8 Nhg6 Kf7 Nh8+ Ke6 Qg7 Bg4 Re3 Bf3 Qg6 Qg1 Qg3 Qf2 Ne5 Qd6 Re8 Qd8 Nd7
3nRbN1/3pRRqb/2kB2b1/3NN3/N2P3N/R1n4R/1r1q1rbQ/1q3NK1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c6 b4 Qc7 b6 Bh6 b5 Bg7 b7 Bf8 b6 Qd8 Bb5 cxb5 Kf1 e5 f4 a5 g4 h5 c4 e4 d4 e3 c5 a4 c6 h4 f6 b4 c7 a3 f7+ Ke7 f5 Kd6 g6 b3 g5 a2 g7 h3 f6 b2 g6 h2 Qe2 Ne7 g8N Kc6 g7 Ra5 Nd2 b1B Ba3 Bc2 Ngf3 Rf5 Bd6 Rc5 Nh4 Na6 b8R Nd5 b7 Rb5 Qg2 Nb4 Ne7+ Kb6 g8N e2+ Kf2 Nc6 Nf1 Nc3 Qg1 Rb2 Nd5+ Kb5 Re1 a1Q Ra8 Bd3 b8N Bb7 c8N Qb1 Ra3 Bg6 Ncb6 Qe7 Na4 Nd8 Nc6 Rh5 Ne5 Rf5+ Nf4 Bf3 Nd5 Bfh5+ Kg2 Bh7 Qf2 B5g6 Qf4 Bh6 f8R Qg7 f7 Rf6 Re8 Rf5 Nef3 Kc6 f8R Rf6 Rf7 Rf5 Rc1 e1Q+ Qd2 Qe3 Re1 Rf4 Qf2 Qd2 R1e7 Rf5 Rg1 h1B+ Kh2 Kb7 Rg3 Bg2 Kg1 Kc6 Rh3 Rf6 Ne1 Rf4 Nd3 Rf6 Qg3 Rf2 Qe5 Qh8 Qg3 Bf8 Qh2 Qg7 Ne5+
n1BKb1Q1/Nr2p1q1/1R1b1Nn1/1bN1q3/1kBB1r1B/3B4/N3PB2/1b1N3q b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 h5 g4 Rh6 g6 Rh8 b4 Rh7 g5 Rh8 Ra3 Ba6 Rg3 Bc8 Rg4 hxg4 Kd2 d5 Ke3 Kd7 Kf4 f5 Ke5 a5 h4 d4 c4 d3 h5 f4 b6 Kc6 b5+ Kb7 h6 g3 g7 f3 h7 f2 g6 d2 Bh3 f1B Bf5 g2 Rh6 a4 Nh3 g1Q Bd3 a3 Qb3 d1B Nc3 a2 Bg5 a1Q Nf2 Ra3 c6+ Ka8 c5 Bg4 b7+ Ka7 c7 Bg2 c8B Qa5 c6 Kb6 c7 Kc5 b6 Bh5 Ke6 Nc6 Kd7 Ra4 b8B Be4 b7 Qh1 Na2 Ne5+ Kd8 Nf6 g8B Ne8 g7 Ng6 Bgc4 Q5c3 g8N Qe5 Nf6 Bg7 Bh4 Ra7 Qb2 Rf8 h8B Ba4 Nd1 Bb5 Qb3 Qac3 Bd7 Rf7 c8N Nc7 Bf5 Na8 Bh3 Qf5 Bbg3 Qfe5 b8N Rb7 Na7 Qb2 Bc8 Qbc3 Nd5 Rf4 Bf2+ Qcd4 Qa4 Bf5 Qa6 Bf6 Qe6 Bg5 Qg8 Qg7 Bfg3 Qde5 Nf6 Be4 Nac3 Kb4 Bf2 Rg4 Nbd7 Bf4 Nc5 Bg3 Bc2 Rf4 Bb1 Nf8 Bbd3 Bhe8 Nh5 Bh2 Rb6 Ng6 Nf6 Bg2 B4e6 Bd5 Bf7 Ba2 Bfc4 Bb1 Na2+ Ka3 Bg4 Qe3 Bge6 Rf3 Nb3 Qh7 Nc5 Bd6 Bef5 Rf4 Nfd7 Qe6 Bc3 Qe5 Nf6 Qh8 Bc8 Qg7 Na6 Ka4 Bb2 Ka5 Bbd4 Ka4 Nc5+ Ka5 Nc1 Kb4 Na2+
3r1NRq/1N2N1p1/Np3R2/2n3K1/1k4pQ/2Nbr1b1/bP1BRR2/R2Nnq2 b - - 0 1 illegal: No proof kernel
1q5q/pnNp1R2/1R4N1/RrBrnq1p/1B2b2K/6B1/2kP1N1N/2bBBN2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c5 b4 Qb6 Qg4 Qb7 b6 Qc7 b5 Qd8 Qb4 cxb4 g4 Kf7 c4 e5 f4 h5 Kf2 b3 Kg3 e4 g6+ Kf6 b7 e3 g7 e2 g5+ Kf7 b6 b2 f6 Ke6 g6 Kf5 f7 Ke4 f5 Kd3 f6 Bc5 f8B Nc6 b8B Bb4 f7 Be7 b7 Kc2 c5 Kb3 Nh3 e1Q+ Nf2 Qa5 Na3 b1Q Nb5 Nb4 c6 Qb2 Be2 Qd1 Nc7 Nf6 g8N Qaa3 g7 Qf1 Bd1+ Qc2 Kh4 Ne4+ Nf6 Nc5 g8N Qaa6 Nh6 Ncd3 Ra5 Qe2 Nf5 Rg8 Ng3 Qb6 Ba3 Nc5 Nf1 Rg5 N6g4 Nbd3 Bb4 Qe5 Ngh2 Qh8 Rg1 Ne5 Rg4 Qg8 Rf4 Qh8 Rf6 Bd6 Be7 Kb2 f8N Qf5 Ng6 Kc1 Rf7 Kb1 Na6 Qbd8 Bc7 Qde8 b8B Nb7 Bb6 Qef8 B8c7 Rb8 Be3 Bc5 Bcd6 Bd4 c7 Bb2 Bec5 Bc1 Bf6 Nd8 Bfe7 Bb7 c8R Be4 Rc6 Rb5 Rb6 Nb7 Nc7 Qb8 Bd8 Rg3 Bg5 Rd3 Bf4 Rd5 Bg3 Qbg8 Nh3 Qe8 Be1 Qb8 Nf2 Kb2 Be3 Kb1 Bf4 Kb2 Bg3 Kb1 Bdc5 Kb2 Bf3 Kc2 Bd1+
R4b1q/1B1B3N/B3Pbnb/KRn1RR1r/8/1q2RRQb/1B2b3/Qr3k2 b - - 0 1 illegal: No possible last move, all moves rejected
1r3B2/6Rk/2rr3r/2B2RR1/1Q2bQKn/1R1n1Bb1/2B1bRPr/r2NR3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 f4 Be6 h4 Nh6 f5 Bc8 Nc3 Ng8 Nce2 Qd6 Nf4 gxf4 Qa4 Qa3 Qd1 Qh3 Ra2 Qg4 Ra1 Qg5 hxg5 Be6 Qf3 Bd7 Qd1 Bc8 Ke2 Kf7 Kf3 c5 d4 h5 b4 a5 g6+ Ke8 g7 Kf7 d6 e5 d7 h4 d8R h3 d5 c4 b6 c3 d6 e4+ Kg4 c2 b7 e3 b5 h2 d7 a4 b6 e2 Qd6 e1R Ne2 a3 Qb4 f3 Ra2 f2 Be3 c1R Nc3 Re2 Nd1 Rcc2 Bc5 Red2 Be2 f1B Bf3 Nc6 b8Q Rd6 b7 Be2 Re1 h1R Qc7 Rc1 b8R R8h2 Re8 Rc2 d8R+ Nge7 Rd7 Kg8 f7+ Kh7 f6 Ng6 Re5 Nh4 Rg5 Bb7 Rb2 Be7 f8R a2 f7 a1R Ra2 Bf6 Re7 Be5 g8B+ Kh6 Ra5 Bg3 Bh7 Rc4+ Be4 Rc3 Rf5 Kh7 Bc2 Ne5+ Kg5 Neg6 Kg4 Be4 Rbb5 Rc8 Ra3 Re8 Rb3 Nf4 Qb8 Nd3 Reb7 Rf6 Qf4 Rd6 Rg5 Bg6 Bd4 Rb8 Qe5 Rh3 Rd7 Bf1 Re8 Nf5 Qf4 Rcc6 R8e2 Rh6 Rf2 Nh4 Be3 Be4 Rbf5 Rh3 Bc5 Rh2 Re7 Be2 f8B+ Kh8 Re6 Kh7 Reg6 Rc1 Rg8 Ra1 R8g7+
K1b1BR2/3rN1Q1/1r1Q1bqR/Nr1RNnN1/3P1Nb1/1r6/2b5/2k1R1Nq b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 g4 Bb7 h4 Bh6 b3 Bc8 h5 Nc6 Ba3 Ne5 Bd6 Ng6 hxg6 Bg7 Bf4 gxf4 g5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 d6 h5 Kd5 a5 Kc6 e5 d7 e4 b6 h4 f7 e3 g7 a4 g6 f3 f6 e2 b7 e1R b8N h3 Bc4 a3 Nd2 Kc3 b4 Kb2 b5 f2 b6 f1B b7 a2 Bb3 h2 Qf3 Re5 Qd5 Rh3 Ne4 Nh6 g8Q Be2 g7 Be7 f8R Bg4 f7 Ra7 Re1 a1Q Qd6 Nf5 Ng5 Qe8 Ba4 Bf6 Qh7 Rb5 g8N Rg3 Ne7 Rgb3 Qg7 Kc2 Rg8 Qc1 f8R Qg6 d8N Qd1 Nd7 Kc1 b8N Rb6+ Kd5 c5 Ne5 c4 Nbc6 c3 Na5 c2 Be8 Rc7 Nde6 Rd7 Re4 R6b5+ Kc6 Qf1 Nf4 Qf3 N1h3+ Qd1 Rhe1 h1B Rh8 Bhf3 Rh7 Be2 Rh6 Bd3 R1e3 Qh1 Re1+ Kd2 Ng1 c1R+ Qc5 Rcb1 Qd6 Qh4 R4e3 Bc2 Rc3 Qh3 Rc5 Qh1+ Rd5 Rd8 Nb7 Rb6+ Kc7 Rd7+ Kb8 R3b5 Ka8 R1b3 Re4 Kd1 Na5 Kc1 Re1+
bQN5/2K1nN2/1N2NN2/k4R2/1BQNqn2/r1P5/1bq1pqrR/1R1rR3 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 f4 g6 g5 Qc7 Bh3 Qb6 fxg6 Qd8 Bg4 hxg4 f5 Bb7 Nd2 Ba6 Nb1 Bc8 Kf2 e5 Kg3 a5 b4 d5 h4 Kd7 g7 Kc7 b6+ Kc6 f6 Kb5 f7 a4 h5 e4 Kf4 a3 Ke5 g3 h6 g2 b7 a2 c3 e3 g6 d4 h7 e2 c6 d3 c7 d2 Qa4+ Kb6 b5 d1R Be3+ Bc5 f8N Rd7 Na3 Rf7 Ne6 Ne7 g8R Rf3 g7 Rf6 Qc4 Nd5 Re1 a1Q Rf8 Rg6 g8N Qg5+ Rf5 Qg4 Nf3 g1Q Nf6 Qd1 Rh2 Rd8 h8N Nf4 Nfd4 Ka5 b6 Qc2 Nf7 Qh4 Bf2 Rg2 Be3 Bd7 c8N Bf8 Bf2 Bh6 Be3 Qgf2 Kd6+ Bb5+ Kc7 Nc6 b8Q Ne7 b7 Qg4 Nf3 Rd1 Bc5 Bc6 Nfd4 Ra6 Qa7 Qgf3 b8R Qfe4 Rb1 Ba8 Qb8 Nh5 Nb6 Bc1 Nab5 Bb2 Na7 Nf4 Nbd5 Rb6 Nc8 Rb3 Ndb6 Ra3 Bb4#
Rq3Bb1/rQ3r1B/1qB2k1n/5N2/R2nR3/1pr1RBPR/3n2K1/2bQ3R b - - 0 1 legal: proof: c4 a5 e4 h5 b4 f5 exf5 d5 cxd5 g5 bxa5 h4 f4 h3 Na3 Bh6 Nc4 Bf8 Ne3 Be6 fxg5 Bd7 g3 Bc8 Ng2 hxg2 Kf2 Kf7 d4 e5 a4 c5 h4 b5 g6+ Kg7 d6 e4 d5 b4 a6 c4 a7 c3 a5 c2 d7 b3 h5 Rh7 d6 Ne7 a6 Kf6 g7 Bb7 g8B Qa5 d8R Nc8 d7 Bc6 h6 Qd5 Nf3 g1R Ba3 c1N Nd4 Rf7 h7 Qc5 h8R Nd6 Bb5 Nc4 Bh7 Qb6 Re8 Nd2 d8R Bh6 Bf8 Nd7 Ra4 Bd5 Bc6 Ne2 Rb8 Rf1+ Kg2 e3+ Re4 Ne5 Re8 Ng4 Re7 Rc8 a8B Rg7 a7 Bg8 Rh3 Bf4 Bab7 Nh6 a8Q Rc7 Rh1 Rf3 Qb8 Rf7 Ba8 Ra7 Qb7 Nc1 Rh3 e2 Re3 e1Q R7e4 Ne2 Rh1 Kg5 f6 Qf1+ Kh2 Qe1 Nf5 Nd4 Kg2 Qe2+ Kh3 Qeb5 Kg2 Rc7 f7 Kf6 Bc5 Re7 f8R+ Rf7 Rfe8 Bg5 Bf8 Qe5 Reh4 Bf4 R4h3 Qb8 R8e4 Bg5 Re2 Rd3 R2e3 Rc3 Bb4 Ne2 Bb5 Qc8 Rd3 Qbd8 Re7 Nf1 Qf3 Bc1 Rde3 Nd4 Qd5 Qc5 Qd7 Qcc7 Bf3 Qb6 R7e4 Nd2 Qb7 Qc8 Bc6 Qcc7 Bg6 Bh7 Ra8 Bg8 Bh7 Qb8 Bf8
b1Nb3n/1N4kq/R1n1P2q/2r1rR1q/2Np1NQ1/1B5R/3R2R1/Q2KR1r1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 f5 gxf5 c5 a4 c4 axb5 c3 dxc3 h6 c4 Ne7 c5 Ng8 Bg5 hxg5 b4 Kf7 h4 a5 c4 d5 e4 d4 f6 g6 c6 a4 e6+ Ke8 c7 a3 b6 g4 h5 g3 b7 g5 h6 a2 h7 g2 b5 g4 e7 Kf7 e8N g3 c5 Ra3 c6 Re3+ Ne2 g1R e5 g2 b6 Bb4+ Nd2 Ra3 Nd6+ Kf8 f7 Kg7 f8R Qf6 Nf4 Be6 c8Q Ra6 c7 Bf7 Ng6 Ra5 Qcg4 Ne7 c8N Qf3 e6 Be8 Rf5 Ba3 N2c4 Nbc6 b8R Rc5 b7 Qh3 Rh2 Qh6 Ra8 Rf8 Rb1 a1Q b8R Bb4+ Ke2 Ba5 h8R Bd8 Ra6 Qa5 R8b2 Qc7 Rd2 Qb7 Rf2 Rff5 Rf8 Qc7 Rh3 Rfd5 Qe1 Re5+ Kd1 Qh5 Nb7 Bd7 Nh4+ Ng6 R8f5 Be8 Bd3 Qe7 Be4 Qeg5 Rfe2 Nh8 Ng6 Qgh6 Bd5 Qf4 Kc1 Na5 Rh4 Qh7 Be4 Rf1 Bc2 Bc6 Bb3 Qh2 Nbd6 Ba8 Nb7 Nc6 Kc2 Rh1 Qc1 Qf4 Qb2 Rf1 Qa1 Qfh6 Rbe1 Rh1 Kd1 g1Q Ref2 Qh2 Rg2 Rg1 Rhh5 Q2f4 Rh4 Qh5 Rh3 Qfh6 Nf4+
4BNn1/QnB3N1/q3p1rk/1r1R1bP1/3r4/1Q2QB1b/brQ3B1/Q1Q3K1 b - - 0 1 illegal: No possible last move, all moves rejected
2QQnr2/1B1KR1rp/B3B1bQ/3n3Q/k2BQQ2/r1P4q/4b3/q2NR2r b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 g4 Nc6 h4 Kf7 f5 Ne5 Nc3 Nc6 Nce2 Nb4 Nf4 gxf4 g5 Bh6 g6+ Ke8 Ne2 Na6 Ng1 Bg5 hxg5 Nb8 Kd2 a5 Kd3 d5 Kd4 Kd7 Ke5 e6 b4 d4 c3 d3 b6 Kc6 g7 Kb5 g6 a4 f7 a3 f8Q a2 c6 f3 f6 f2 b7 Na6 b8Q+ Bb7 f7 Qh4 Kd6 e5 c7 e4 c8Q e3 Qfe8+ Kb6 f8Q d2 b5 Ka5 b6 e2 Kd7 e1R Qe4 Nh6 g8B Qg5 g7 Nf5 Qbf4 Nb4 Nh3 Nd5 Ba6 f1R Be6 Qg4 g8B Ng7 Nf2 Ne8 Q8h6 Qh3 Qdh5 d1B Be3 Rg1 Bd4 Be2 Nd1 Ka4 Rb1 a1Q Rb5 Ndc7 Re5 Rg7+ Bf7 Bd5 b7 Rf8 b8Q Ba2 Qd8 Nd5 Qbc8 Bb1 Rg1 Rgg8 Rg7 Rh1 Bg6 Bbd3 Re7 Rg7 Bb7 Kb5 Bgf5 Ra3 Bg4 Ka4 Bf3 Bf1 Be2 Bb1 Bea6 Be2 Rg5 Bc2 Rg1 Bcd3 Re1 Bb1 Qee5 Bg6 Qee4
R1Q1nqkR/b1NQ4/R3RP1R/8/Bq4N1/nbNq2p1/1n3r1R/1b2K2N b - - 0 1 legal: proof: g4 a5 c4 d5 cxd5 b5 f4 e5 fxe5 f5 a4 h6 axb5 f4 b3 Kf7 Ba3 Ke8 Be7 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 h4 Kf7 e4 c5 d4 g4 b4 g5 h5 a4 f6 c4 h6 a3 d6 c3 e6+ Ke8 e5 f3 e7 Kf7 e8N g3 h7 a2 b6 c2 d7 c1Q b7 g4 b5 g2 e6+ Kg6 b6 g3 e7 Kf7 d5 Qc4 d6 Nc6 b8Q Nb4 b7 Nh6 Nc3 Qg4 Bb5 Nf5 Nc7 Ng7 Rh6 Ne8 Nh3 Qg6 Qa8 Qd3 b8N Ba6 Ba4 Bc4 Qd2 Bb3 Nf2 Qc8 d8R Qg4 Rd1 a1N d7 Qf4 Rb1 Qfc4 Nc6 Nac2+ Kd1 Qc5 Rb2 Na3+ Ke1 Qcd6 Rc2 Q6d4 Nh1 f2+ Kd1 f1B Qc8 g1Q Ke1 Qh4 Qd1 Qc5 Rh2 Bg2 Qd2 Be4 Qd1 Rg8 h8R Rg5 R8h7+ Kg8 Ne5 Rf5 Ng4 Rf2 Qd2 Nd5 Qd1 Ne3 Qd2 Nec4 Qd1 Ned6 e8R Nb2 Re6 Ne8 Qd2 Qb4 Qd1 Qg5 Ra6 Qg7 Qd2 Nd6 Re8 Bf5 Re5 Ne8 d8R Bc5 Ree6 Qf8 Qd1 Ba7 Qd2 Qdb5 Qdd7 Bg6 Qb7 Bd3 Ra8 Bb1 Qbc8 Qd3 Rh8#
1R5r/Q1q3BN/Knq4p/3PQ1B1/Q5r1/BB5r/bN1rk1Bn/BrQ5 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 b4 Na6 g4 Kd7 h4 Rb8 f4 Bg7 f5 Bb7 Ra3 Ra8 Rf3 Bf8 Rf4 gxf4 g5 Bc8 g6 Bh6 Bc4 Ke8 Bf1 Bg5 hxg5 Nb8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 d6 a5 f7 c5 f8B e5 g7 f3 b6 h6 Kb5 a4 g6 f2 b7 a3 f6 c4 f7 c3 d7 c2 Bg5 c1Q Nh3 a2 Nd2+ Kf5 Bg2 f1R Qa4 Kg4 Nc4 a1R Nb2 Qe7 d8B Nd7 b8Q e4 Qba7 Qe8 Bdf6 e3 Ka5 e2 b5 e1R b6 Re3 b7 Re5+ Ka6 Re3 Ba3 Rd1 f8B Nb6 Be5 Bf5 b8Q Nf6 g8B Qec6 g7 Rd2 Bb3 Bb1 g8Q Ba2 Qgc4 Rb1 Bg7 Red3 Qc7 Rag8 Qcb5 Q1c4 d5 Qf4 Qc5 Kg3 Q7d6 Ng4 Qc1 Nh2 Bd4 Kg4 Qe5 Qf7 Rf1 Qfc7 Rf8 Rc3 Rb8 Rg3 Nf4 Rh3 Bc3 Kg3 Nh5+ Kf2 Nf6 Q7d7 Qed4+ Ke2 Nh7 Qcc7 Nd1 Qdc6 Ba1 Re8 Qdc3 Re4 Nb2 Rg4 Qe5+
Q3n1qR/rRn1k3/2BNpr2/r2Q3r/1P4RB/qn6/4K3/Q1QRQQb1 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 h6 f5 Kd7 g5 Kd6 g6 Be6 Nc3 Kd7 Ne4 Bf7 Ng5 hxg5 gxf7 g4 h4 g5 b4 a5 d4 c5 b6 a4 h5 g3 h6 c4 d6 g2 b7 e6 d5 c3 h7 c2 Ke2 a3 Nh3 g1Q Nf2 g4 Bg2 a2 Rh4 g3 Qe1 Ra6 Bg5 c1R Rg4 Ra7 Ne4 Rc7 Bh4 Qh2 Rd1 Na6 b8R a1N Rb7 Bg7 f8Q Nh6 f7 Qe8 f6 Nb3 Qg8 Qa8 f8R Qh3 f7 Bd4 Qg5 Ng8 Qc1 Nf6 Rfg8 Qc8 f8Q Ne8 Qff1 Bg1 Bf3 g2 Rf8 Rg8 h8Q Rg5 Qha1 Rh5 Rh8 Ra8 Ng5 Kd8 d7 Ke7 Be4 Rc5 Bf3 Ra7 Ne4+ Kf7 d8Q+ Nac7 d6 Rca5 d7 Qb8 Nf6 Qa8 Qb8 Ke7 Bc6 Qg3 Rgd4 Qg8 Rg4 Bf2 Qc8 g1R Qb8 Rg3 Qc8 Rf3 Ne4+ Rf6 d8Q+ Kf7 Qdd2 Bg1 Nd6+ Ke7 Qd5 Qb8 Rb5 Qb6 Qa6 Qd4 Qb7 Qc3 Qa8 Qh3 Rb7 Qc3 Qh6 Qb2+ Qhd2 Qa3 Qdc1
4KR2/1b1R1Q1B/2qPR1rB/8/1Bk1qnNR/rqb5/2BRq1p1/1bQR4 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 f5 c4 d5 cxd5 f4 a4 h6 axb5 Nc6 Nc3 Nd4 Ne4 Nf5 Ng5 hxg5 gxf5 g4 Kf2 Ke7 d4 g5 b4 c5 e4 a5 h4 f3 Ke3 f2 f6+ Kd7 f7 g3 b6 g4 Kf4 c4 Kf5 g2 Kg6 g3 b5 c3 e6+ Kd6 e5+ Ke7 h5 a4 b7 c2 b8B a3 b6 a2 h6 Bb7 h7 Bg7 f8R Bc8 b7 Nh6 Rh2 Ra7 Bd3 f1B Nf3 g1Q Rd2 g2 Nh2 Qc7 Ng4 Rg8 h8R Nf7 Rh4 Qd8 Bc7 Ra8 b8R Qh2 Rb6 Qe8 Bd6+ Kd8 e7+ Kd7 Bb4 Qg3 d6 Ke6 d7+ Kd5 e6 Bb7 Rb1 a1Q d8R+ Qd7 e8Q Qa2 e7 Ra3 Rf6 Ng5 Re6 Nh3 Kf7 Nf4 Bh7 Kc4 d5 Qa4 d6 Bc3 Rd7 Bd3 Qf1 Qe1 Qc8+ Qc6 e8B Qb3 Ke7 Qe4 Beg6 Qe2 Ke8 Rg7 Be4 Rg6 Qf2 Nd5 Qf7 Nf4 Bb2 c1Q Qc7 Qce1 Rbd1 Bd4 Bc1 Bb1 Bc2 Ba1 Bb2 Qe4 Bg7 Bc3 Bh6 Q1e2 Qa5 Ra1 Qa3 Ra2 Qb2 Ra3 Qc1
3rNQn1/R5bR/Q3rQpr/6k1/1BB5/bP1RRR2/b1b1Kn1b/2R4Q b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 f5 c4 d5 cxd5 f4 a4 h6 axb5 Qd7 Nc3 Qf7 Ne4 Qf5 Ng5 hxg5 gxf5 g4 d4 Ke7 e4 a5 h4 c5 d6+ Kf7 b6 c4 f6 Kg6 h5+ Kg5 d5 c3 b3 g6 h6 a4 d7 a3 d8R c2 h7 g3 e6 a2 d6 g2 e5 Ra3 e7 Ra6 e8R Nc6 d7 Ra5 b7 Nb8 f7 Kf5 e6 f3 e7 f2+ Ke2 Kg4 Ba3 c1B Nh3 g1R Bb4 Bg7 f8R Nc6 b8Q Ra6 Nf4 Ba3 Ne6 Ne5 Qb6 Nd3 Nc7 Kg5 Rf3 Rg2 Rc1 a1B Qb7 Rc6 Qa6 Bae5 Rh6 Bb7 Ra8 Re6 d8R Be4 Ra7 Rh2 Qe1 Rh5 Qc3 Bh2 Qf6+ Kg4 Rd6 Rd5 Rhh3 Rh5 Rd7 Rh6 Red8 Bf5+ Re3 Be4 e8Q Bf5 Rf3 Kh5 Qd4 Kg5 Qf8 Be4 Ne8 Bf5 Kd1 Be4 Be2 f1B Kd2 Nf2 Bc4 Bh3 Ke2 Bc2 Rdc7 Bhf5 Qdf6+ Kg4 Rd5 Bb1 Rf7 Bfc2 Rd3 Ba2 Rfb7 Ne7 Rbd7 Rg8 h8Q Kh5 Q6f7 Kg5 Qf6+ Kg4 Qc8 Bc7 Rf5 Rh4 Nd6 Bh6 Qf8g7 Rd8 Qgf8 Ng8 Qa6 Bb8 Rf3 Bc7 Qa1 Kg5 Ne8 Rh2 Qac3 Rh4 Qe1 Bh2 Rh7 Rh5 Qb2 Bg7 Qh1 Rh6 Qbf6+
K2RN2N/1R6/nBrRb1rR/3R1n1N/k3PRQ1/2Q4b/N2ppn2/3q1r2 b - - 0 1 legal: proof: d4 b5 g4 d5 a4 e5 axb5 h5 gxh5 c6 e4 Bd7 Kd2 Bc5 Bg2 Be6 exd5 e4 d6 Bc8 d5 Kf8 d7 Bd4 d6 e3+ Ke1 e2 Bd5 cxd5 Kd2 Be3+ fxe3 Qb6 Qf1 Qc7 Qd1 Qd8 Kd3 f5 Kd4 a5 Kc5 g5 b4 f4 c4 a4 h4 g4 h6 f3 b6 g3 b5 g2 h7 f2 b7 f1B h5 d4 h6 a3 e4 d3 b6 a2 Be3 d2 Nh3 g1N Nc3 Nf3 Nf4 Bh3 Qg1 Bf5 Rf1 a1R Na2 Qg5 d8R+ Kf7 d7 Ke7 Nh5 Qg7 Qg4 Nh2 Rf4 Na6+ Kc6 Qg5 b8R Nf6 c5 Qh4 b7 Re8 h8N Nd5 h7 Be6 Nf7 Rg1 h8N Qe1 Nd6 Rf8 Ne8 Qd1 Bd4 Ne3 Kb6 Bg8 c6 Nf5 c7 Be6 Kc6 Rg8 Bb6 Ra7 Ra8 Rg6 b8R Re1 Rb7 Rf1 Qh3 Ng4 Qc3 Nf2 Rh2 Nc5 Rh3 Ra3 Ra5 Na6 Rd5 Ra5 Nhf6 Ra4 Rh6 Ra3 Nh5 Ra4 Ba5 Rc4+ Kb6 Rc6+ Ka7 Ne3 Bb6 Bh3 Nd6 Nf5 Ka8 Ke6 Rf8 Ke7 d8R Bd7 Rf6 Be6 Re8+ Kd7 Reb8 Rc4 Ne8+ Kc6 Rbd8 Rc5 c8Q+ Kb5 Rff7 Ka4 Rfd7 Rc6 R7d6 Qa1 Qd7 Qd1 Qdg7 Rf6 Qg1 Rg6 Qg4
1N1N2Q1/1K1nB3/7k/r2n2Qq/Q1QN1bBQ/P1Q2p1p/3bN2r/3rr1R1 b - - 0 1 legal: proof: g4 d5 c4 g5 cxd5 a5 f4 e5 fxe5 a4 a3 Bh6 b3 Bg7 bxa4 Nc6 a5 Na7 Ra2 Ke7 Rc2 Bf8 Rc4 Nc6 Rf4 gxf4 g5 Bg4 h3 Ke8 hxg4 Nb8 Kf2 f5 Kf3 Kf7 e4 Kg6 d4 h5 e6 b5 d6 c5 d7 b4 e5 c4 d5 c3 a6 c2 a7 b3 d6 h4 e7 b2 e8N h3 e6 Nf6 e7 Rh6 Nc7 Nc6 e8Q+ Kg7 g6 Nb4 g5 Na6 Qd3 Rh4 Qe5 Rb8 a8Q Rg4 Qc4 Be7 Nc3 b1R N3b5 Qf8 d8N Qg8 d7 Qe8 Nd4 Nc5 Nge2 Nd3 Rg1 Bd6 Qaa4 R8b2 Na6 Nb4 Nb8 Nd5 Qe3 Rg2 Qec3 Rb5 Be3 c1B Bd2 Kg8 g7 Kh7 g6+ Kh6 g8Q Ra5 g7 Rh2 Be1 Bd2 Bh4 Re1 Bg2 Nh7 Be7 Nf8 Bf1 Qg6 Qh8+ Qh7 g8Q Bc7 Nd8c6 Bd6 d8Q Nd7 Qf6+ Qg6 Qh4+ Qh5+ Qgg4 Be5 Qg8 Bf6 Nd8 Bg5 Bg2 Rd1 Kf2 f3 Kg3 f2 Kf3 f4 Ke4 f1R Bf3 Ra8 Qf5 Ra5 Bg4 f3 Qf4 N7f6+ Ke5 Rfe1 Kd6 Nd7 Kc6 Rc5+ Kb7 Ra5 Qe5 Bgf4 Qeg5+
2Q1n1N1/2B2R1k/1K2b1rP/p1NrQ1QN/2qQr1b1/6r1/1Qn1p2Q/1N3R2 b - - 0 1 legal: proof: f4 b5 a4 g5 fxg5 d5 axb5 d4 e3 d3 cxd3 Ba6 d4 Nc6 d5 Nb8 d6 Bc8 d4 h5 g4 Bh6 g6 Nc6 d5 Bf8 g5 Bg7 Bh3 Bd4 exd4 Nb8 Bg4 hxg4 Kf2 Kf8 Ke3 Kg7 b4 c5 h4 a5 b6 f5 b5 e5 b7 g3 d7 g2 h5 c4 b6 e4 h6+ Kf8 d6 c3 d5 f4+ Kd4 e3 Kc5 f3 g7+ Kf7 g6+ Kf6 Ne2 g1R Qd2 c2 Ng3 e2 Nh5+ Kf5 Qc3 f2 Bf4 f1B Qb2 Qg5 d8Q Ne7 g8N Rg3 g7 Kg6 d7 Qf5 Bc7 Qf7 d6 Nbc6 b8Q Nb4 b7 c1R+ Kb6 Nf5 Qg5+ Kh7 d8Q Qc4 d7 Bh3 Rf1 Nd6 Rf7 Be6 Qe8 Rc2 d8Q Rd2 Qdd7 Bg4 Qee5 Ne8 Qdd4 Bce6 Qc8 Ra7 b8N Nc2 Nd7 Rdd3 Nc5 Ra6+ Kb7 Rd2 Qh4 Rd6 Qh2 Rd5 Kb6 Rdd3 Na3 Rde3 Raf1 Re4 Nb1 Kg6 Ngf6 Rh7 g8Q+ Rg7 Qf8 Rg8 Qe7 Rg7 Ng8 Kh7 Qed7 Qa4 Qdd8 Qc4 Rf8 Rg6 Qdg5 Rge3 R8f6 Rg3 Rf7+
bR1R2Rk/8/b1PK1bB1/2BR2bn/r1pq2nB/8/RR2N2p/3QQB1n b - - 0 1 illegal: No possible last move, all moves rejected
4B1r1/4k1B1/1p1BrnQQ/qp3bQ1/1R3B1P/B2r4/1R1Q2K1/n1nn2NB b - - 0 1 legal: proof: f4 d5 b4 c5 bxc5 e5 e4 h5 exd5 e4 g4 Bd6 gxh5 Be5 fxe5 a6 Nc3 b6 Nb5 axb5 Kf2 f5 a4 g5 d4 g4 h4 f4 c4 e3+ Kg2 g3 d6 e2 d5 e1R a5 Nf6 c6 Ra7 c7 Rg8 c5 Kf8 d7 Qe7 d8B Kf7 a6 Bg4 c8Q Rg7 e6+ Ke8 c6 Be2 d6 Bc4 h6 Nbd7 h7 Be2 h8B Ne5 d7+ Kf8 c7 Qd6 e7+ Kf7 e8B+ Kf8 Ra4 Qa3 Qd2 Nf3 Rb4 Qa5 Rh2 Nd4 Ba3 Nc2 Qb8 Rg6 c8Q Bg4 Qc6 Rg8 Bc7 Bf5 d8B Na1 Bd6+ Rae7 a7 Re3 a8Q Rd3 B8c7 f3+ Kh1 f2 Bg2 f1N Qd8 Ne3 Bf3 Neg4 Kg2 Nf2 Qcc2 Nd1 Qac6 Rd4 Bf4 Re6 Qdd5 Rd3 Bg7+ Ke7 Qcc1 Bg4 Qg5 Bf5 Qe4 Bg4 Qeg6 Bf5 Kf1 Rf8 Re2 Rg8 Bh1 g2+ Ke1 Rd7 Qc6 Bh3 Q6h6 Re4 Qb2 Bf5 Nf3 g1N Kf1 Rd3 Kg2 Re5 Rd2 Ne2 Ng1 Nc1 Qbc3 Re1 Rdb2 Ree3 Qe4+ Be6 Qeg6 Bf5 Qd2 Re6 Bcd6+
NnN2BrB/p6p/b1r5/1Q1BB2Q/n1rn4/2k3B1/1RBPr3/1qN2K1N b - - 0 1 illegal: Other
bn2k3/1np2BP1/rnR2R2/1Bnr2N1/1B6/B1K2Rp1/BB3Q1n/3QR1b1 b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 g4 axb5 g3 c4 Bc5 b6 Na6 b5 Nh6 b7 Ng8 fxg3 Bd6 g4 Nb8 g5 Bf8 g4 h6 b6 Bd6 g6 Qf6 Nc3 Bf8 Ne4 Qc6 Ng5 Qb5 cxb5 Ke7 N5h3 Ke8 g5 h5 Nf2 Rh7 Ng4 hxg4 Nh3 Rh5 Ng1 Rh8 Kd2 d5 e4 f5 h4 a5 g7 f4 e6 d4 e7 f3 g6 a4 h5 a3 h6 d3 h7 a2 e5 f2 Rh6 g3 Ba3 Ra6 Rc1 a1N Nh3 Bf5 Rc6 Be6 Kc3 d2 Ng5 Nc2 Bc4 f1N Ba2 Nd7 b8B Bf7 b7 Nc5 b6 Ra5 Ba7 Rb5 b8R+ Kd7 e8R Na1 b7 Nf6 g8B Nab3 Ra8 Na5 b8Q Bg7 Qb6 Nab7 Rf8 Nh2 Rae8 Bc4 Bd5 Rg8 h8B Bd3 Ree6 Be4 Rf7+ Kd8 Bdc4 Nfd7 Rf3 Rf8 Ref6 Re8 e6 Nb8 e7+ Kd7 Rh3 Rg8 Rh6 Ke8 Be6 Ra5 Rh4 Ra6 Rg4 Bd5 Re4 Bh6 Re1 Rg7 Nh7 Be3 Ng5 Bg1 Qb2 Rf7 Bb6 Rh7 Ba5 Rh4 B5b4 Rd4 Rf7 Be4 Be5 Rd5 g7 Bd3 Qbc2 Bf1 R7f6 Bg2 Kc4 Bh1 Beb2 Bg2 Kc3 Bh1 Qe2 Bg2 Qf2 d1N+ Kc4 Ne3+ Kc3 Nc4 Qd1 Nb6 Bg8 Kd7 e8B+ Kd8 Be6 Ke7 Rd6 Bh1 Bb5 Bg2 Rc6 Ke8 Rg6 Bh1 Rgf6 Rd4 R3f5 Nd8 Rd6+ Bc6 Rf3 Rd5 Bd3 Ba8 Rc6 Ndb7 Be2 Nc8 Bb5 Nb6 Bf7+
3k4/R5qp/1p2b2n/1Q3NQ1/K3R1PR/1r2Q2Q/p1bRq1nr/2Q1BQ1B b - - 0 1 illegal: No possible last move
1K2n2R/1N3R1N/3RR1rq/2bn1Q1p/RQNp2Np/Pnk1B3/4b3/2qR4 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 a4 h4 a3 h5 g6 h6 Qc7 Be2 Qd8 bxa3 Ra5 a4 Ra7 a5 Ra8 g4 b5 g5 Ra6 Bh5 gxh5 g6 Nf6 g7 Ne4 g8N Rg6 Bd2 Rg7 hxg7 Nf6 Be3 Ng4 Bc1 Nf6 Kd2 Kf7 Kc3 d5 Kd4 h4 Ke5 h5 c4 b4 f4 d4 c6 b3 c7 e6 a3 b2 a6 Bc5 a7 Na6 a8R Bd7 c8Q Rh7 Nd2 b1Q Nh6+ Ke7 g8R Rh8 Nh3 Nh7 Qe1 Ba4 Ng4 Nf8 f6+ Kf7 f5 Bb5 Rg6 Bb4 c5 Qb6 c6 Ba5 Kd6 e5 Rh2 e4 Re2 e3 Nhf2 Nc7 Nfe4 Ba4 Nc5 Nfe6 Nb7 Bb4+ Kd7 Bb3 Ra4 Ne8 c7 Nf4 Kd8 Be6 Qd7+ Be7+ Kc8 Bc4 Kb8 Rg8 Qb5 Qa6 Qf2 Bd3 Qb4 Bc5 Re1 e2 c8R Nd6 Rd8 Rg7 Rh6 Ne8 Rh8 Qe6 Rd6 Rg5 Rf1 e1N Qf3 Nc2 Re1 Rg8 Re5 Be2 Qe4 Kf8 f7 Ke7 f8N Qb2 Rb1 Na1 Nh7 Nb3 f6+ Kf7 Qf3 Kg6 f7 Nd5 Re4 Rg7 Qd3 Kf5 Nc4 Qh6 Be3 Rg6 Rd1 Qd2 Qc2 Qc1 Ree6+ Bd3 Nce5 Ke4 Qf2 Be2 f8R Qd2 Nc4+ Kd3 Rf7 Kc2 Qb6 Kc3 Qf5 Qc1 Qb4+
1k2N1R1/1rQn2p1/Q3R1Np/B3Q3/Kb2b2Q/Qp1qn3/Q2q1q1P/R1R5 b - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 e5 dxe5 c6 a4 Qh4 axb5 Qd8 b4 Nh6 b6 Nf7 b7 Qh4 b5 Qf6 b6 Qd8 Bg2 Nh6 Be4 Ng8 Bd3 Qc7 Ba6 Qd8 Bb5 cxb5 Kd2 d5 Kc3 Kd7 Kb3 a5 c4 h6 e4 d4 f4 d3 e6+ Kc6 c5 d2 e7 b4 e8R Qd4 f6 Qb2+ Ka4 b3 f5 Rh7 e5 Ra6 f7 Nd7 b8R Qc2 e6 Rh8 f6 Qa2+ Na3 Qb1 e7 Qa2 b7 Kc7 c6 Ra8 Ne2 Rh7 Qc2 d1Q Nf4 Qb2 Ng6 Qdd4+ Nc4 Qg4 Bd2 Qe4 Rhc1 Qd3 Nd6 Ra7 Be1 Rh8 Bd2 Kb6 c7 Qbd4+ Bb4 Qf2 Ra8 Qdd2 b8Q+ Bb7 Qd8 Be4 c8Q+ Rc7 Rb8+ Ka7 Qa2 Rb7 Qcc2 Rc7 Rb6 Qd3 Qc8 Qfd2 Rd8 Rb7 e8Q Ne7 Rc6 Nf5 Qe5 Rg8 Ne8 Ne3 Re6 Rc7 Bc3 Bb4 f8Q Qf2 f7 Qdd2 Kb5 a4 Qe7 a3 f8Q Rh8 Ka4 Rb7 Qab2 a2 Qh4 Rg8 Qfd6 Rf8 Qa3 Rf7 Qc4 Rc7 Qe2 Rb7 Nc7 Re7 Rg8 Rf7 Ne8 Rc7 Qda6+ Kb8 Rab1 a1Q Qca2 Qab2 Ra1 Qbc2 Qd1 Qcd3 Qdc2 Bd6 Ba5 Bb4 Qeb2 Rf5 Qbf6 Rb5 Qe5 Rb7 Qcxc7+
n1k2rR1/p2P4/p3r1qQ/2pRNR2/1nQR3R/4K1BN/1rRr4/Q1b3Q1 b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b4 Na6 a4 Rh6 b5 Rh8 b6 Bd7 Be2 Nb8 Ba6 Bb5 axb5 bxa6 Ke2 Kd7 f4 e5 h4 g5 d4 c5 b7 e4 b6 g4 d6 g3 d5 g2 f6 e3 f5 Qe8 h6 Qe4 h5 Qf4 h7 Qd4 f7 Qf4 h6 Qe5 f6 Qh2 Nh3 Bg7 f8Q Qf4 f7 g1R Ra4 Qe4 Rd4 Rg6 Na3 Qb1 Rh2 Rg1 Nc4 Rg6 Qg1 Nc6 b8R Rf6 b7 Nce7 Bd2 Nc6 Be1 Qf5 Bg3 Nge7 Rg2 Rg8 h8R Rg6 h7 Be5 Qh6 Nc8 f8R Qe6 Rf5 Bf4 Ne5+ Kd8 d7 Rf8 Rg8 Nb4 h8Q Qf6 Kf3 e2 Ke4 Kc7 d8R e1R+ Kf3 Qg7 Rc2 Rb1 Kf2 Bc1 Ke2 Ba3 Ke3 Re6 Rh4 Rd1 Rd6 Nb6 Rbd8 Qf7 Q8g7 Rb1 Qg4 Qg6 Qc4 Rb2 Qa1 Rc8 Qg1 Na8 R6d7+ Kb6 b8Q+ Ka5 Qa1 Rcc6 Qd6 Kb6 Qe7 Rc7 Qeg5 Kb7 Rd6 Rd7 Qgg4 Rc7 Qgd1 Rd7 Qg1 Qh7 Rgg4 Qg6 Rd4 Rff6 Rg8 Rf8 Rg5 Rdd8 Rd7+ Kc8 d6 Rf2 Rf7 Rf8 Rff4 Rh2 Rd5 Rd2 Rfd4 Rb1 Rgh5 Bc1 Rf5 Rb2 d7+
1kr1r1RQ/pN1pN2Q/3N3K/b1N1p1Qn/PN1q1NQ1/1q3R1b/4B2p/8 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 g5 hxg5 e5 dxe5 Na6 bxc5 b4 c4 Nb8 e4 f6 e6 Ke7 e5 Na6 Bb2 Nc7 Bd4 Ke8 e7 Kf7 e6+ Kg6 Be5 Nb5 cxb5 fxe5 Ke2 Kf5 Kf3 h5 e8N h4 a4 h3 g4+ Kg6 e7 Kf7 g6+ Ke6 c6 h2 c7 b3 b6 b2 g7 Rh4 b7 Rh5 b8N Rh7 g5 Rh3+ Kg4 Rc3 Kh5 Rd3 f4 Ra3 g6 Ra2 Qg4+ Kd5 f5 Ba6 c8N Nh6 g8Q+ Nf7 f6 Bg7 Nc3+ Kc5 Ne4+ Kd5 Qh7 b1Q Ne8d6 Bc4 e8N Rc2 Ne7+ Kd4 Nh3 Nh8 f7 Bh6 f8Q Qdb6 g7 Bd2 g8Q Ba5 Nf4 Be6 Nb7 Rc8 Kh6 Ng6 N8d6 Q1b3 Ra3 Re8 Na6 Rac8 Qg5 Bh3 Be2 Qc5 Rg1 Qcb4 Nd3 Nf4 Nec5 Nh5 Qf3 Q4c3 Qgh8 Qd2 Qg4+ Qf4 Ng8 Kd5 Rg3 Kc6 Ne7+ Kb6 Nab4 Qd4 Nf4 Kc7 Rg2 Kb8 Rg1 Qbd5 Rf3 Qb3 Qe6 Rc7 Qgf5 Qbd5 Rg8 Rcc8 Qg5 Qb3 Qeg4
K1n5/2bb4/np1R4/QP2RNQ1/N1NN1Q1r/5r1Q/4nkbr/BQ1q1bQ1 b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 Nd7 cxd5 Nb8 h3 Nh6 h4 Ng8 b4 a5 Bc4 g5 hxg5 a4 Bb3 axb3 Ke2 Kd7 Kf3 Kd6 Ke4 c5 g4 e5 f4 h5 a4 h4 d4 b2 b5 c4 a5 c3 a6 h3 a7 h2 f6 c2 f5 Rh5 f7 Na6 g6 Nc7 g7 Qh4 f6 Rb8 a8Q Ne7 g8N Be6 Na3 b1B Nh6 Bg7 f8Q Na6 f7 Nc7 Qh8 Qf2 f8Q Bd7 g5 Rd8 g6 Bf6 g7 Rb8 g8Q Be8 Ne2 Qf1 Nc4+ Kd7 d6 Na6 d5 Bg7 Nf5 Nc8 Bb2 c1N+ Qc2 Bh6 Nc3 Qd1 Re1 Ne2 Na4 Bf4 Qg5 Rh4 Ra3 Ba2 Qb1 h1B+ Rf3 Bg2 Ba1 Rh2 Qh3 Bf1 Rd3 b6 Qgg2 Rb7 Qh1 Ra7 Qfh6 Bg3 Qf4 Rc7 Na5 Rc3 Nc4 Bb3 Rd2 Rf3 Rd4 Kd8 d7 Kc7 d8N Bd7 Nc6 Bg2 Ncb2 Bc4 Rd2 Be8 Ncd4 Bd7 Ng7 Kd6 Rd3 Ke7 Ngf5+ Kf6 d6 Kg6 Rd2 Bd3+ Kd5 e4 Nc4 e3 Nh4+ Kh5 Qa7 Be6+ Kc6 Bef5 Kb7 Bd7 Qf7+ Kg5 Nhf5 Kf4 Qf6 Nc1 Qf8 Bdf1 Ka8 e2 Rd3 Bh4 Qf7 Bd8 Qf6 Bc7 Qf8 Nb4 Qa5 Na6 Qfh6+ Ke4 Qf4+ Kd5 Qe3 Be6 d7 Nb8 d8Q+ Bd7 Qdh8 Na6 Qg5 Ke4 Nb3 Qd2 Rd1 e1R Rd5+ Qc2 R1d3 Qd1 Qhc3 Ree3 Qd2 Ne2 Rd6 Rf4 R3d5+ Rd3 Nbd4 Rh4 Nc2 Rg3 Re5+ Kf3 Ncd4+ Kf2+ Re4 Qc2 Qdf4+ Rf3 Re5 Qd1 Qg1+
3B2N1/B1p4Q/1nN5/1K2N3/rb2q2R/1NPr1q2/B1b1B2b/kNnbNQ1r b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h5 g4 Ne7 g6 Ng8 b4 Nc6 g5 Nb8 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kd2 Ke7 Kc3 Ke6 Kc4 f5 h4 a5 e4 d6 c3 g3 b6 a4 b5 a3 g7 f4 g6 g2 h5 f3 h6 f2 b7 a2 b6 a1B h7 d5+ Kb5 d4 Nf3 g1R Rh4 d3 Be2 f1Q Ne1 Nc6 b8N d2 b7 Na5 Nc6 Nf6 b8B Bb2 g8N Bb4 g7 Nb3 Ba7 B2a3 Qc2 d1B Bg5 Qf5 Nh6 Nc1 g8N Qf1 Nf5 Rg3 Qd3 Nd5 Nfd4+ Kf7 Be7 Nb6 Nb3 Qe8 Bd8 Qf3 e6+ Kg6 e7 Bf5 e5 Bd6 e6 Bab4 Qd5 Bfc2 Qc4 Kf5 Qd3+ Qe4 Qc4 Qf8 e8B Rd3 e7 Bh2 B8h5 Qf7 e8N Qf8 Bhg4+ Kf4 Bgf3+ Ke3 Nef6 Qf7 Nd7 Qf8 Bb8 Ra4 Ba7 Qff4 Bg4 Qf2 Nde5 Qff3 Nc5 Qg2 Be6 Qgf3 Na3 Kd2 Bf7 Nb3 Nb1+ Kc1 Bd5 Kb2 Be6 Nc1 Nb3 Qeg4 Qf4 Qe4 Qf1 Qgf3 Nh6 Rg8 h8Q Rg1 Qh7 Rh1 Ng8 Ka2 Nc5+ Kb2 Ba2 Ka1 Nb3+
2Q1Q3/1p2rr2/RK1R4/1R4nq/NbQ4R/r2q2Qn/kPN2R2/nb2BrR1 b - - 0 1 illegal: No proof kernel
1KRQ3R/r1r2knB/Rn1p4/2pP1q2/1B4qB/1N5b/Qb1RRnB1/4R1r1 b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 b5 gxh5 Nh6 c4 Rh7 Nc3 Ng8 Nd5 Nh6 cxb5 Rh8 b6 Ng8 b5 Ba6 Nb4 axb4 Qc2 Bb7 Qd1 Bc8 Ke2 e5 Kf3 g5 Ke4 b3 Kd5 g4 d4 e4 a4 e3 f4 e2 h4 e1Q a5 b2 f6 b1N f5 g3 b7 g2 h6 Na3 f7+ Ke7 h7 Qf2 b6 Nb5 a6 Bh6 f8R Qf4 a7 Bg5 h5 Qh2 h6 Na6 b8Q Qe8 f6+ Kd8 b7 Bh4 f7 Ke7 Qc2 Qd8 Qa2 Qf4 Re8+ Kf6 f8B Kg6 Ne2 g1R Bb4 c5 Bg2 d6 Kc6 Qf2 Bg5 Nf6 Nc1 Bf5 Re2 Nac7 Nb3 Qg8 Qd8 Bh3 b8R Nc3 Kb7 Ng4 Rc8 Ne6 Rae1 Na4 Rh2 Bg3 Bh4 Kf7 Rc6 Rc8 a8B Rc7+ Kb8 Qf5 Ra6 Be5 Bae4 Nb6 d5 Nf2 Bd3 Qgg6 Rd2 Re8 h8R Bb2 h7 Qgg4 Rg8 Ree7 h8R Ng7 Re8 Qe6 Bh7 Ra7 Qd7 Qee4 Rc8 Qef5 Qd8 Rec7 Bf1 Ne4 Rhe2 Nf2 Bg2
Rq1bK1k1/3Q2Q1/bnn5/rQpp1N2/1Q6/N1nqRrR1/R1PRB1R1/2q5 b - - 0 1 illegal: No possible last move, all moves rejected
3r1n2/2N3R1/NQp2p1N/1rr2N1R/1NR3RQ/r1PrB3/1q3N2/1kb1nbK1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Bh3 Be7 fxg5 Nf6 g6 Bf8 g5 Ng8 Bg4 hxg4 Kf1 Ke7 h4 Ke6 e4 a5 b4 d5 h5 a4 b6 g3 c3 a3 b5 c6 b7 a2 h6 d4 b6 d3 g7 f6 h7 d2 g6 Nd7 b8R Bb4 b7 Ba5 Rh5 Ra6 Nh3 g2+ Kg1 Ne7 g8R Qb6+ Nf2 Nd5 g7 Qa7 Qb3 Bb6 Na3 Be3 Qb6 Nb4 Nc2 Nd3 Nb4 Nf8 Ra8 Bd7 b8N Qb7 Ra7 Ra3 N8a6 Ne1 Rb1 d1R Ra1 Bg5 Be3 Rd2 Rd1 Rd5 Rd4 a1R Rc4 Qb8 Rb7 Rad1 Rc7 Rb5 Rb7 Ke7 e6 Kd6 e7 Ke5 e8N Bh3 Nd6 Rd3 Nf5 Rc5 Bd4+ Kf4 e5 Kf3 e6 Ke2 e7 Kd2 e8N Kc1 Be3+ Kb1 Rf7 Qb7 Nec7 Qb8 Kh2 g1R Re7 Rg3 Rf7 Bg2 Kg1 Bh6 Rd7 Rg5 Rdd4 Bf1+ Rg4 Ng6 Rc8 Rhd8 g8N Nf8 h8Q Qb7 Ra8 Qb8 Ra7 Rb5 Nd4 Rgc5 Nf5 Bf4 Ngh6 Bg5 Bd4 Bc1 Be3 Rba5 Na8 Rab5 Rag7 Qf4 N8c7 Qf3 Qg8 Qe2 Qe6 Qb2 Qe4 Rd7 Qh1 Rd8 Qh4
bQK2NQB/1nnQN1Nn/3r1q1b/2pB2NR/rNP3p1/5k2/2N1r2r/2Q5 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h5 g4 Ne7 g6 Ng8 b4 Nc6 g5 Nb8 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kf2 Ke7 Ke3 Ke6 Kf4 f5 h4 d5 e4 a5 c4 c5 g7 a4 g6 a3 h5 a2 h6 a1R h7 d4 b6 d3 b5 d2 b7 R8a4 b6 R4a3 Rh5 Qd6 Ne2 Qd7 Nd4+ Ke7 e6 Kf6 e5+ Ke7 Bb2 Qd5 Bg2 Qc6 Bd5 R1a2 Nc3 Qd6 Ne4 Nf6 g8Q Nc6 b8Q Ra6 b7 Ra8 g7 R8a4 Qc1 d1R Nc2 Na5 Kg5 f4 Kf5 f3 Bc3 f2 Ba1 Nd7 Bb2 Ke8 e7 f1N Ba1 Qb6 Bd4 Qb2 Ke6 Nf6+ Kd6 Ne3 Kc7 Nc6 Bc3 Nd8 Bd4 Bd7 Bc3 Bb5 Kc8 Bc6 Be6 Rd6 Rh4 Ra8 Na3 Ra4 Qa7 Ra5 b8N Qg2 Na6 Bb5 Qb8 Nc6 Nb4 Re2 Nac2 Ned5 Rh2 Nc7 Bd5 Qf1 Qe6 Nd8 g8N Ra4 Qf5 Re6 Rh3 Kf7 e8Q+ Kg7 Bd4 Rea6 e6 Bc6 e7 Ba8 Qfd7 Nb7 Qed8 Kg6 e8N Qf2 Bb2 Qh4 Ne7+ Kh5 Bd4 Rd6 Bb2 Bh6 Ba1 Rf8 h8N Nh7 Nhg6 Rff2 Bc3 Rh2 Bh8 Be3 Ng7+ Kh6 Nc3 Kg5 Qg8 Bd2 Nf8 Kf4 Ne4 Qf6 Rh6 Kf3 Rh5 Bh6 Ng5+
1qbnN3/Qrp1k3/R1b1N1n1/2PQbNK1/p1N3B1/rQ3R2/3N2N1/1Q2qb2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Nc6 g5 Nb8 g6 Qf6 Be3 Qd8 Bg5 hxg5 Kf2 d5 Kf3 f5 e4 a5 b4 d4 c4 g4+ Kf4 g3 h4 d3 b6 d2 e6 g2 e5 Rh5 b5 Qd6 e7 Na6 c5 Rg5 h5 Rb8 b7 Qd3 b6 Nb4 h6 Be6 h7 Qb5 h8N Nc6 Ne2 g1Q Nf7 Na7 Nd8 Nc6 Rh3 Bd5 Ne6 Rc8 b8Q Bg2 b7 Qh1 Qa7 Ra8 b8Q+ Nd8 Qb3 d1B Nd2 Bb7 Rf3 Rg3 Bh3 Bc8 Bg4 Qe1 Kg5 f4 Ra4 Kd7 e8N Ne7 g8N Bg7 Nd6 Rh3 Qbb7 Rb8 Nh6 Qb4 Qbb6 Rb7 Nhf5 Bh8 g7 Ng6 g8Q Rg3 Nh4 Ke7 N2d4 Bc2 Ng2 Be4 N6c4 Bc6 Qb1 Qb2 Qb3 Rh3 Rb4 a4 Rb6 Rg3 Ra6 Rh3 Re3 f3 Rc3 f2 Rf3 f1B Nf5+ Kd7 Nf8+ Ke8 e6 Be5 e7 Rg3 Ne6+ Kd7 e8N Rh3 Nfg7 Ke7 Nd4 Rg3 Qd5 Rh3 Nge6 Rg3 Rf8 Re3 Rf3 Rd3 Q3a2 Ra3 Qb3 Rb8 Q3c2 Qb7 Qca2 Qa8 Qab2 Rb7 Qb3 Qb8 Nf5+
2n1N3/RR2QpbK/2NpR1r1/2nk1b2/2QPr1B1/Rp4N1/3qRq2/N1nR4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Nf6 b4 Ng8 Ba3 Rh7 axb5 Qc7 b6 Rh8 b5 Qd8 Bb4 cxb4 Kf2 Ke7 Kg3 Ke6 Kg4 a5 c4 g5 e4 a4 h4 a3 d4 a2 h6 b3 Kh5 d6 b7 g4 b6 g3 c5 g2 h7 Qf6 c6 Ra3 c7 Ra5 Qe1 Qf2 Be2 Qf6 Bg4+ Ke7 Na3 Nd7 b8R Qf2 b7 Ra7 e6 Qd2 e5 Bh6 Ne2 g1Q Ng3 Ra5 Nc2 Kf8 e7+ Kg7 e8R Ra3 e6 Kf6 e7 Qb4 Rd1 a1N Rh2 Nb6 Re2 Bd7 c8Q Qd2 Qc4 Nc8 Ra8 Bf8 b8N Bg7 Ra7 Bf5 Nc6 Ra5 Rb7 Re5 Ra7 Nh6 Rb7 Rg8 h8R Qf2 Ra7 Nb6 Rb8 Na4 Rbb7 Nc5 Ra3 Ra8 Re8 Re4 Raa7 Ng8 Ra3 Ra5 Ra8 Nd3 Raa7 Rd5 e8N+ Ke6 Rb8 Ne7 Rbb7 Qb4 Kg5 Nc8 h5 Nc1 h6 Qa5 h7 Qd2+ Ne3 Nc2 h8R Nb4 Rh6+ Bf6+ Kh5 Nbd3 Nc2 Nc5 Rg6 Na4 Na1 Nc5 Qb5 Rde5 Qb4 Kd5 Rh6 Bh8 Re6 Rf4 Kh6 Ree4 Rg6 Bg7+ Kh7 Bd7 Re6 Rf6 Qh1 Rg6 Qh4 Qde3 Qe7 Qd2 Rf6 Bf5 Re6 Qb2 Qb5 Qd2 Qc4+
3rRBk1/2R1npRR/8/b1b3Kn/1n2Np1n/3r1RPQ/2B2R2/1qR1RB2 b - - 0 1 illegal: No possible last move, all moves rejected
N4B2/2nrq2R/2rrr1R1/2P1Nb2/2R4R/BnR1K3/B1B2Bk1/nbnR4 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 f5 g4 e6 gxf5 Qf6 e4 Ke7 f4 Ke8 Qg4 hxg4 e5 Qd8 Kf2 Be7 Ke1 Bf6 exf6 Rh5 Ra3 Rh7 Ra1 Rh8 c6 Kf7 Kf2 g5 c4 a5 h4 d5 b4 a4 c7 e5 c5 a3 h5 d4 h6 e4 b6 d3 b7 a2 b5 d2 h7 d1B b6 Ra7 Bd3 Qd7 Na3 Ba4 Nc4 Bc2 Ba3 Ne7 Rh4 Nd5 Rd1 a1N Nf3 Bb1 Bc2 Rd8 h8R Nc6 b8R Na5 b7 N5b3 Nb6 g3+ Ke2 e3 Na8 g2 R8h5 Kf8 f7 Kg7 Kd3 g1N f8R g4 f6+ Kg6 Rh7 Kf5 f7 e2 Re8 e1R Re4 g3 Rc4 Ra6 f8R+ Qf7 Rc3 g2 Rg8 Rc6 Rg6 Ne2 Rc4 Nd2 Rc3 Be6 c8B Qf6 Bd7 Qf8 Be8 Rd7 Bf7 Qg7 Rf8 Qf6 b8B g1R Rgg7 Rg3 Rg6 Qe5 Bd6 Nc7 Rb8 Qf6 Rb4 Qg5 Re4 Nc1+ Kd4 Bc4 Bg8 Bd3 Ba2 Rh3 R4h5 Kg4 Rh4+ Kg3 f5+ Kg2 f6 Rg3 f7 Qe7 f8B Rg5 Ref4 Re6 Re4 Rg4 Ke3 Ndb3 Bg3 Rf4 Ne5 Rf5 Nf3 Rfd5 Ne5 R5d6 Rec4 Bf5 Bf2+
5N1R/bnkP1BNR/KR1Rb3/2qbN1Rb/4r3/2B1b2N/1Nqp4/n2R4 b - - 0 1 legal: proof: d4 b5 c4 e5 h4 g5 hxg5 d5 cxd5 b4 d6 b3 d5 Qe7 Qd4 Kd7 axb3 Qf6 b4 Qd8 b5 Ke8 f4 exd4 e4 a5 e5 Ra6 e6 Rc6 Kf2 Rc3 Ke1 Re3+ Kd2 Re5 fxe5 Bd7 Ke1 Bc8 Ke2 c5 Kd3 f5 Kc4 h5 b4 d3 g4 h4 b6 f4 Kb5 d2 d7+ Ke7 g6 a4 b7 f3 g5 a3 g7 h3 g6 h2 Bb2 a2 Na3 f2 Nh3 c4 Rd1 a1B Bc3 Qc7 d8R Nh6 g8R Nc6 b8N Bd7 g7 Bb2 Ka6 Rh7 b5 Be8 b6 Nf5 b7 Nd6 Nd7 Nd4 b8R Nb7 Rh8 Bh5 g8R Nb3 Rg5 Bh6 Nf8 Qc5 Rd6 Na1 Bd3 f1B Bg6 Rg7 Bf7 Rg6 Rh7 Rf6 Rh8 Rf4 Rh7 Re4 Rh8 Na5 Rbb6 Nb7 Rh7 Bd3 Rh8 Bc2 Rh7 Ba4 Rh8 Bd7 Rh7 Kd8 e7+ Kc8 e8N Kd8 Ng7 Kc7 e6 Bc8 e7 Be6 Ba5 c3 Nc4 c2 Bc3 c1Q Ne5 Qc2 e8N+ Kb8 Nd3 Ba3 Nf6 Kc7 Ng4 Bb2 Nge5 Ba3 Rg6 Be3 Rg5 Bb4 Nb2 Ba5 Rb4 Bb6 Rb5 Ba7 Rbb6 Beg4 Rdh6 Be6 d6+ Kc8 d7+ Kc7 Rhf1 h1B Rff6 Rd4 Rh8 Bhd5 R6h7 Re4 Rfg6 Bf5 Rgd6 Bfg4 Ng1 Bge6 Nh3
1RN1N2r/NR1nN1RN/P6K/1B6/kp2qpb1/n1q2R2/1r2pB1p/1R4R1 b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 Kd7 exf5 Ke8 f6 Bg4 Qf3 Be6 Qd1 Bc8 f4 Nh6 g4 Na6 h4 Rg8 f5 Be6 Qf3 Bc8 Qf4 gxf4 g5 Rh8 g6 Ng8 Nh3 Bh6 Ng1 Bg5 hxg5 Nb8 Ke2 Kd7 Kf3 b5 Kg4 e5 Kh5 c5 d4 h6 a4 b4 f7 c4 f8N+ Kd6 f6 e4 f7 e3 a6 c3 g7 c2 a7 Bb7 g6 Nd7 a5 Qf6 a6 Re8 a8N Nc5 Nb6 Kc7 d6+ Kc6 d7 Nb3 d8R Re4 d5+ Kc5 d6 Ba8 d7 Qe7 Nf3 Qd6 Nd4 Qf6 Nd2 Re7 Nb5 Qd4 Rb1 Kc6 Rg1 Na5 Na7+ Kc5 Nh7 Qc4 f8R Qd3 Rb8 Qe4 d8R Nc4 Rd3 Na3 Nbc8 Re6 Bb2 c1Q Nc4 Qc3 N4d6 Bb7 Ne8 Nf6+ Kh4 h5 Kg5 h4 g8N h3 g7 h2 Rf7 Nd7 Nge7 Kc4 g8R Kb3 Rgg7 Ka4 Ba1 Re5+ Kh6 Bd5 Bb2 Be6 Bc1 Rc5 Bd2 Bf5 Be1 Bg4 Bf2 Ra5 Rf6 Rd5 Rfb6 Rg5 R6b7 e2 Bh3 Rd5 Rf3 Rd2 Bg2 Rb2 Bh3 Bh5 Be6 Bg4 Bc4 Rf8 Bd3 Rh8 Bb5+
1q3r2/pp2br2/5Bp1/R4RP1/R1R2B2/RN1B1b2/nKbB1Rnn/4Nk1B b - - 0 1 illegal: No proof kernel
1KBBr2B/7N/B1q5/3b3R/RnP1BpRp/N3NBk1/4bb1r/2r1R3 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 f4 c5 fxe5 Bg7 dxc5 Bh6 Qd2 Bf8 g4 Bb7 h4 Bg7 Qf4 gxf4 g5 Bc8 h5 Nc6 Rh4 Nce7 Rh1 Ng6 hxg6 Bf8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 Kg4 b4 h5 e4 a5 g7 f5 c6 a4 b6 a3 b7 f3 b8R h4 c7 f2 b5 a2 g6 d6 Kc6 f4 b6 d5 b7 d4 e6 d3 e7 d2 e8B d1R e5 Ra7 e6 Re1 e7 Re2 Na3 Nh6 g8B Re1 g7 Re3 Bg6 Bf5 c8B Rf3 e8N Rg3 Nh3 Qf6+ Kc7 Kf3 Ba6 f1B c4 Ng4 Nf2 B1d3 Bd5+ Bfe4 g8R Ne5 Nd1 Nc6 Bb2 Rg4 Re1 Nb4 Ne3 Be2 Ra8 Rg2 Kb8 Qe6 Nf6 Qc6 Nh7 Kg3 Rab1 B4f3 Bge4+ Bg7 Bf6 a1Q Bd8 Rh2 Rb2 Bh1 Bf3 Bg2 Bde4 Qd1 Rd2 Bh1 Rd5 Bg2 Ra5 Qdd7 Rd5 Qg4 Rh5 Bd4 Rgg5 Bc5 Bb5 Ra6 Ra7 Rb6 Ra4 Re8 Ba6 Bd4 Ka7 Bh1 b8B Bc5 Be5 Bg2 Nec2 Bf2 Ne3 Rb5 Bef6 Rd5 Bh8 Rd1 Kb8 Rc1 Nd5 Bh1 Ne3 Qd5 Bd3 Bd1 Bfe2 Qc6 Bg6 Be4 Bf3 Bd5 Bge4 Be2 Rxg4+
2R4B/1N1q2n1/2bn3N/2bBB1q1/4bB1R/4P1N1/K1N1qrkB/1B1qR1b1 b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 f5 axb5 e5 fxe5 f4 Qc2 Ra6 Qf5 Rf6 Qg5 Rf5 gxf5 Kd7 Qg3 Ke8 Qg4 hxg4 Kd1 Kf7 Kc2 g5 Kb3 c5 h4 c4+ Ka2 g3 b4 a4 d4 c3 f6 Kg6 h5+ Kf5 b6 Ke4 h6 a3 e6 c2 e7 f3 e8B g4 b7 f2 h7 g2 b5 g3 b6 Qd7 f7 Nf6 d6 Be7 f8R Qb5 d5 Nbd7 b8B Ne5 b7 Nh5 d7 Ng7 d8N Bf5 d6 Nc4 d7 Bc5 Nf7 Nd6 d8N Qd7 Bf4 c1Q e3 Qd1 Bc4 f1B Ne2 Kf3 Nh6 g1B Bd5+ Be4 Rh4 g2 Ng3 Bb5 Bg6 Bc6 Bc7 Rg8 h8B Qf1 Re8 Rf8 b8B Qd3 Nb7 Qe2+ Nd2+ Kf2 Re1 Rf5 Rc8 Rf8 Kb3 a2 Nb1 a1Q Na3 Qad1+ Nc2 Qc1 Bg5 Ndf5 Nb4 Bh2 Nf1 g1Q Bh7 Bb1 Bf6 Qg5 Ba1 Bc2+ Ka2 Bg1 Bh2 Qcd1 Ng3 Rf6 Bf4 Nd6 Bae5 Qgg4 Bg5 Rf8 Be6 Kg2 Bd5+ Rf3 Bgf4 Qg5 Bb3 Rf2 Be4+ Rf3 Bed5 Be4+ Bc2 Qed3 Bb1 Rf2+ Nc2 Qf1 Bf6 Qfe2 B6e5
1r1B1RB1/8/n3n1BB/nn2R3/nBr2q2/1kb3p1/NNPR2Br/3K2NR b - - 0 1 illegal: Other
rN1n2R1/RB3N2/4NR2/1B2pKNr/1Rn1P1p1/1Nk1r2r/1B3Np1/2b3b1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Qf6 f5 Qe6 fxe6 Bf8 g4 h5 b6 f5 Na3 f4 Nb1 Ba6 Qb3 Bc4 Qh3 Bd3 Qf3 Bf5 gxf5 Bb4 Qg2 Bf8 Qg4 hxg4 Kf2 Ke7 h4 Kf6 e4 a5 d4 c5 b4 g5 e7 g3+ Kf3 a4 Kg4 g2 e8B a3 b5 a2 h5 c4 h6 c3 h7 f3 d6 c2 d7 f2 d8N Ra6 b7 Bd6 d5 Ne7 b6 Nec6 Rh6+ Ke7 f6+ Kf8 f7 Kg7 f8R Ba3 d6 Nd4 d7 Bc5 Nd2 Nb3 Bb5 f1R Rhf6 Nc6 b8R Ra3 b7 Rf5 Nh3 Nba5 Nb3 Nc4 Nf7 Bg1 Nf2 Nd8 Bb2 Ra8 Ba3 c1B Ba6 Rf3 Bb5 Rc3 Kf5 g4 Ng5 Re3 Bf7 Rh3 Bd5 Rh5 Rc8 Rh3 b8N Rh5 Rb1 a1R Bb7 Ra2 Ra6 Re2 Ra7 Kh6 Rf7 Rh3 Rf6+ Kh5 Rb2 Ree3 Rb1 Kh4 Rb2 Kg3 Rb1 Rf8 h8N Rh5 Nf7 Rfh8 Nc5 Rh3 Rb4 R8h5 Nb3 R5h4 Nh7 Kf3 Nhg5+ Ke2 Ra5 Nc6 d8N Rh5 Ne6 Nd8 Ra7 Ke1 Rc7 Ke2 Re7 Ke1 Re8 Ke2 Rg8 Ke1 Na5 Kd2 Nb3+ Kc3 Bb2+
3Q3b/1bBB4/1BBBq1b1/bKB3NP/4r1b1/B2n1p2/1R1Bn3/rk1B2R1 b - - 0 1 illegal: No proof kernel
K1Br1B2/2Rb2R1/n2RP3/p1bRrn1q/3R4/1Qpb1p2/3kRRRQ/7N b - - 0 1 illegal: No possible last move, all moves rejected
1nkB2R1/1bb1NpBn/qBn5/2Bb3Q/3B2rN/1r1bq3/2BB1P2/2K2B1Q b - - 0 1 illegal: No proof kernel
B3BR2/2N4K/7p/2r2B1q/3n1b2/NnpQ1N2/1qrQQqP1/N1B2Q1k b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 c4 d5 cxd5 b4 a4 f4 a6 f3 exf3 Be6 f4 Nf6 f5 Bd7 Ra3 Bb5 axb5 Ng8 b6 Nf6 Rc3 Ng8 Rc6 Bg7 Rf6 Bh6 Rf8+ Bxf8 Ke2 Kf7 Kf3 e5 Kg4 c5 Kh5 e4 d4 h6 f4 e3 b7 e2 f6 e1Q d6 Ke6 Kg6 Kd5 a7 Ke4 d5 b3 f5 c4 d7 c3 d6 b2 f7 Qc7 d8Q Qe7 d7 Qe6+ f6 Nc6 b8N Nd4 Qe2+ Kd5 Nc6 Qd2 Na3 Rh7 Na5 Qa6 Nb3 Qc6 Na1 Bb4 f8Q Qb5 f7 Nb3 Rh3 Bd6 Rf3 Rc8 a8B+ Kd4 Rf2 Bf4 Qd6+ Qd5 f8Q Rf7 Qda6 Qe3 Qad3+ Ke5 Rf3 Rf6+ Kh7 b1Q g6 Ne7 g7 Nc6 g8B Ncd4 Be6 Rc5 Bf5 Qb2 Qf7 Rd6 Qg5 Rb6 d8N Rb7 Ne6 Ra7 Qed2 Qf2 Qg4 Ra6 Nc7 Raa5 Nb1 Ra7 Qf8 Ra2 Na3 Qf7+ Kh8 Qh5 Kh7 Qb1 Be2 Rc2 Bd1 Qb2 Qf7 Qg3 Rf1 Qf2 Qge2+ Be3 Qf8 Kf4 Qe7 Kg3 Bc8 Kh2 Qg4 Qg3 Rf8 Na5 Bf5 Bf4 Qgf3 Kh1 Qff1 Qf2 Bdf3 Qg5 Bfc6 Qgh4 Be8 Qh5 Qee2 Nab3 Nf3+
2B3QB/1pqqq2b/r5BK/1P3qB1/2kR2R1/b3QpR1/2nQ2RN/7Q b - - 0 1 legal: proof: c4 e5 h4 g5 g4 f5 b4 d5 cxd5 Nd7 f4 a5 b5 Ra6 Na3 Re6 Nc2 Nc5 Rb1 Ne4 Nb4 axb4 fxe5 f4 Ra1 Rf6 Nh3 Rf7 Ng1 Rf5 gxf5 g4 Nf3 Ng5 hxg5 Kd7 Ng1 Ke8 Kf2 Ke7 a4 c5 e4 h5 d4 g3+ Kf3 c4 g6 c3 a5 c2 d6+ Kd7 e6+ Ke8 g7 g2 d7+ Ke7 e5 b3 a6 h4 Kg4 h3 Kg5 b2 a7 b1Q a8R h2 d5 Qb3 R1a4 Qb1 Nf3 Rh3 Rg1 h1Q Nh2 f3 Rg4 Qa5 d8R Qb6 Ra2 Nf6 g8Q Qa1 Rd6 Nh5 f6+ Ke8 f7+ Ke7 Bb2 c1Q+ Qd2 Qbc5 Bd3 Qc7 Bg6 Qd7 Rg3 Kd8 e7+ Kc7 e8Q Ng7 e6 Qab1 e7 Nf5 Bh8 Rh6 Ra4 Qd3 Rag4 Nd4 Bf5 Nc2 Be6 Bg7 f8Q Bb2 Qff7 Rf6 Qfh7 Ba3 Qh6 Qh7 Qeh5 Qf7 e8B Qfe7 Bg6 Qb1 Qh3 Qc1 Kh5 Qb1 Qhe3 Qc1 Re1 g1Q Kh6 Qhg2 Qh5 Qh3 Re2 Qgd1 Reg2 Qg1 Rh4 Qf5 Rhg4 Qf2 Qec3+ Qc5 Qce3 Qd4 Qh3 Qc6 Rd7+ Kb6 d6 Kc5 Rd8 Bd7 Qh5 Be8 Bc8 Qcd5 d7 Ra6 Nf1 Qde6 Qh1 Kc4 Nh2 Bf7 Re8 Qc6 d8B Qcd7 Rf8 Bd5 Rf6 Bf7 Rd6 Be6 Rd5 Bf7 Qh7 Bg8 Qg7 Bh7 Qg8 Qc5 Bdf6 Qcc7 Bg5 Qe1 Qd1 Qb4 Qdd2 Qbe7 Rdxd4+
3rQ1N1/2Kb2BP/Bp1r1N1Q/1bbp3Q/Q2Bnk2/N1qB4/N7/2R3nn b - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 e5 g4 f5 d4 h5 dxc5 f4 gxh5 f3 exf3 Ke7 f4 Ke8 f5 Kf7 Ra3 Ke7 Rd3 Ke8 Rd4 exd4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 d5 h4 g5 f4+ Ke4 c4 g4 c6 d3 c5 g3 a6 b6 a7 g2 a5 d2 c7 Bd6 c6 Qe7 f6 Bh3 c8B Bf5 f7 Bc5 f8B Bd4 h6 Qg5 a6 Bg6 h7 Bh5 c7 Bg6 h5 Bg7 h6 Bf5 Bb2 Bc3 Bg7 Ne7 Ne2 g1N Na3 Nd7 Qa4+ Bb4 Nc3+ Ke3 Na2 d1B Bd3 Be6 f5 Ne2 f6 Rf8 h8Q Nf4 f7 Qg1 Bbd4+ Kf3 h7 Nc5 Qg8 Rb8 a8Q Qg2 a7 Qd2 Ba6 Be2 c8N Nf5 Kc6 Rd8 f8N Nh3 Rc1 Kf4 Ne7 Ng1 Kc7 Ng3 Nd7 Qc3 Nf6 Rd6 Q8c6 Rf8 a8Q Nh1 Qae8 Bd7 Qgf7 Ne4 Neg8 Bc5 Qh5 Bf1 Qeg6 Rd8 Qa8 Bb5 Qc6 Bh3 Qce8 Bhd7 Qgh6+
1K2n1N1/1P3Rpk/3Q1rp1/3bR3/QRBNqrNn/NQ1R4/1q4r1/3b3Q b - - 0 1 illegal: Other
N1bN1N2/1nbQ3k/1bR1pQN1/P1q1B3/3bQ3/1bpB1r2/5QB1/B1K4n b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 a4 b5 f5 h5 g5 Ra6 Ra3 Ra8 Rg3 Ra6 Rg4 Rf6 gxf6 hxg4 h4 g5 d4 c5 Kd2 c4 d6 g3 h5 g2 a6 g4 h6 b4 h7 b3 d5 b2 a7 e6 a8B g3 a5 Qe8 Nc3 b1B Nf3 g1B Bd3 g2 Qa4+ Kd8 d7 Bf2 Nh4 g1B Nb5 Qe7 Bb2 Bg3 Ba1 Ba6 Nc7 Bb6 Kc1 Qc5 Ng6 Bg7 f8B Bc2 f7 Nc6 f6 Bc8 Bd6 Bd1 Bde5 Nge7 Bb7 Re8 f8Q Nf5 h8Q Bb3 Na8 c3 Qe4 Bh2 Rd1 Ng3 Qhh4 Nh1 Qf2 Bg3 Qd6 Rh8 f7 Rh5 Rd2 Rf5 Rb2 Rf3 Rb1 Bc2 Rb4 Bb3 Rc4 Ne7 Qc6 Nf5 Qa4 Nd6 Qb5 Qd4 Rc6 Bf6 Nf4 Ke7 d8N Kf8 Ng6+ Kg7 Qa4 Nf5 d6 Qc5 d7 Kh7 Qad4 Bg7 Qd6 Bh8 Qe7 Nd6 Qf6 Nb5 Bf1 Bh2 Ba6 Bg7 Bg2 Nd6 Bd3 Bh8 Nb7 Bg3 d8Q Bh2 Qe8 Bg3 Nd8 Nb7 Bc7 Be5 Qd7 Bd4 Be5 Bg7 Qff4 Bf8 Qg5 Bd6 Qf6 Bdc7 f8N+
1BQKB1n1/r4B2/N5k1/R3R1Bb/p1R1q2b/1QP5/QQr2pbb/3Rq3 b - - 0 1 illegal: No possible last move, all moves rejected
Q1R1QRr1/n1rb1BNk/2bn4/2B1K1P1/6r1/B1p2b1p/1b1Q1QBR/3R4 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bh3 Na3 Bc8 h4 Qe7 g4 Qc5 h5 Ke7 Nc2 Na6 Ne3 Qc2 Ng2 Qg6 hxg6 Ke8 Nf4 gxf4 g5 Nb8 Kf2 f5 Kf3 a5 e4 h5 b4 c5 d4 a4 g7 Kf7 b6 Kg6 d6 c4 d5 a3 e6 h4 b5 a2 d7 c3 d8Q h3 b7 Kh7 e7 Nh6 e8Q Ra5 g8R Ra6 b6 Ra4 d6 Nc6 b8R Nb4 e5 Be7 e6 Na6 d7 Nc7 b7 Ba3 e7 Nf7 Qe2 Nb5 Bg2 Nfd6 Rf8 Rg8 Rh2 Bb2 Qf2 Na7 Ne2 Rc4 Qa5 Rc7 d8Q Bd7 Nd4 Bc6+ Qd5 Bd7 Rb1 a1R Ne6 Ra4 Rc8 Rd4 b8B Rb4 Ke2 f3+ Ke3 Rg4 Qdd2 f4+ Kd4 Bc6 Ng7 Bd7 Qfe2 f2 Ke5 f1B Qf2 f3 Ra1 Bfb5 Rb1 Ba1 Ba3 Bbc6 Rd1 Bb2 Bc5 Rb7 Qa5 Rc7 Qa4 Nab5 Qa8 Na7 Qf1 f2 Qg1 f1B Qgf2 Nab5 Ba3 Bd3 Ba7 Bde4 B7c5 Bed5 Qef7 Bf3 e8B Na7 Qe6 Rb7 Bf7 Rc7 Qe8
rQ1Nk2b/p2nN1R1/2R3bK/2pRq3/6Q1/P2N2qN/3nRp1Q/Q5Bn b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 fxe5 d6 b4 Bg4 bxc5 Be6 c6 Bc4 c7 Ba6 c8N Qg5 c4 Rh6 c5 Qg2 c6 Rh8 c7 Qg5 Bg2 Qd8 Bc6+ bxc6 d4 c5 d5 Nd7 Bh6 Rb8 Be3 Rb6 Bc1 Rc6 dxc6 Bc4 Qc2 Bb5 Qd1 Ba6 Kd2 f5 Ke3 g5 h4 d5 h6 g4 Kf4 d4 e4 d3 e6 g3 h7 d2 a3 g2 e7 Kf7 Kg5 f4 h5 f3 e5 Ngf6 e8Q+ Kg7 e6 Nd5+ e7 N7f6 Nc3 Ne3 Na2 Qd4 Nb4 Rg8 h8N Bc4 Nf7 Nfg4 h6+ Kh7+ Kh5 Qd7 Rh4 Nf2 Rd4 Qe6 Nd3 Bg7 Qf8 Qd6 e8R Neg4 Re2 Be6 Ne7 Ne4 c8Q Ne5 c7 Bf5 Rd5 Bf6 Qf1 d1N Be3 Nd2 Qe6 Be4 c8R Nd7 Rc6 Nf2 Qa8 Rb8 Nd8 Nh1 Bd4 Kh8 h7 Kg7 Qb7 Ra8 Qb8 Kf8 Rb1 Ke8 h8Q+ Nf8 Rb4 Bf5 Qa1 Qe5 Bf2 Bg7 Rg4 Bf6 Qh6 Bh8 Rg7 Nd7 Qf4 Bh7+ Kh6 Bg6 Nh3 g1Q Qh2 Qgg3 Bg1 f2 Qg4
1K6/2BBpQ2/4PN2/1R3BBr/1Q1bb2b/1p2nNNQ/qn3nkN/Q1n2r2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h5 a4 Bg7 g6 Rh7 g5 Bf8 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 Kd7 Ke3 Kd6 Kd4 f5 h4 b5 e4 g3 a6 b4 a7 g2 g7 f4 a5 c6 h5 b3 e5+ Kc7 Kc5 f3 d4 f2 a6 Bf5 d6+ Kd7 e6+ Kc8 d7+ Kc7 h6 Be4 d5 Rh7 g6 Bd3 Nc3 Be2 Ne4 Bb5 Qg4 Bd3 Rh5 Bc4 Bd3 f1N Nf3 g1N Ng3 Ne2 Nh2 Nf6 g8Q Ne3 Bf5 Bd3 g7 Be4 Qf7 Qe8 g8N Bg7 Bd2 Nc1 d8N Rh8 h7 Nbd7+ Kd4 Kb6 d6 Nc5 d7 Na4 Ke5 c5 Nc6 c4 d8B+ Kc5 Bc7 c3 Nd4 c2 Ndf3 Rc8 a8Q Nb2 a7 Qa4 Qb8 Rf8 a8B Qa2 Bc6 Kc4 Qb4+ Kd3 Ngf1 Ke2 Ng3+ Kf2 Bd7 Kg2 Rg5 Nfd5+ Nf6 Ned1 Rh5 Nf2 Bg5 Ne3 Kd4 Ne2+ Kc5 c1B Kb6 Bd2 Qe8 Nc1 Qf7 Bd3 Kb7 Be1 Ne8 Be4+ Kb8 Rhg8 h8Q Bd4 Qe5 Rh8 Qea5 Qb1 Qa1 Qa2 Qg6 Rf6 Qf7 Rh7 Bg6 Rf5 Nf6 Rh6 Bh4 Rf4 Rb5 Rh5 Bg5 Nfd3 Ng1 Rf1 Ngf3 Nf2 Bf5 Nh1 Ne2+ Bg3 Qf4 Bh4 Ng3 Nf2 Qg4 Rd1 Ne5 Re1 Nef3 Rf1 Qh3+
RB5n/2N1R1rN/b1RBp2q/1r1r3k/1b3p1N/1K2N2n/2B1R1P1/2B1Rq2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 f4 Be6 h4 Bf5 Qa4 Bc8 f5 Qd6 Qd4 Qg3+ Qf2 Qg4 Qf4 gxf4 Nf3 Qg5 hxg5 Bg7 Ng1 Bf8 Ra2 Kf7 Kd1 h5 Kc2 c5 d4 a6 b4 c4 d6 h4 d5 a5 g6+ Ke8 g7 Kf7 Ba3 e6 b6 a4 b5 c3 b7 h3 b6 h2 d7 Ra7 d8R Ra8 d6 Rh4 d7 Nc6 b8N Rh8 b7 Bd6 Na6 Ne5 b8B Rh5 Nd2 Ng4 Bd3 Rh6 Re8 Ne7 Nc4 Rg6 d8R Nf2 Ne3 Rg5 Bb2 Ra7 Nf3 a3 Rf1 Bb4 Rd6 h1Q Rc6 Qh3 Kb3 Qh6 Nh4 c2 Rb1 c1Q Rba1 Qh1 Re1 Rh5 Bc1 Qf1 Rae2 Ng6 Be4 a2 Bb1 Rd7 Be4 a1R Bb1 Bf8 Bc2 Kg8 f7+ Kh7 g8N Bb4 f8B Ra5 Bfd6 Nh8 Nc7 Nh3 Nf6+ Kg7 Nh7 Kf7 f6 Rhd5 Ba7 Ba6 Ra8 Rab5 Bb8 Kg8 f7+ Kg7 f8R Re7 Nhf5+ Kg6 Nh4+ Kh5 Re8 Rg7 Re7
4qN2/1P2rRpb/1R2N3/2npB2N/1B4NR/q2rNB1r/6pb/1kBRK3 b - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 f5 Qc7 g5 Kd8 Qg4 hxg4 Nf3 Nc6 Ng1 Ne5 g6 Nf7 gxf7 Qb6 Ra6 Kc7 Ra3 Kb7 Ra5 Qd8 Ra1 Kc7 b4 a5 c4 e5 h4 d5 h5 e4 h6 a4 h7 a3 c6 Kb6 c5+ Kc7 b6+ Kb8 b7 Kc7 b5 g3 Rh4 e3 Nh3 e2 Nd2 g2 Nf4 a2 Nh5 Bd7 b8B+ Kc8 c7 Kb7 c8R Ra5 c6+ Kb6 c7 Kc5 b6 Qe8 b7 Be7 f8B Nh6 f7 Ra7 f6 Ra6 Nc4 Kb4 Ne3+ Kc3 Ng4 Ba3 Bb4+ Kc2 f8N Ng8 f7 Nf6 Ne6 Ne4 f8N Nc5 Rd8 Bb2 c8N Ra3 Nb6 Be5 Nc4 Bh2 Be5 Rd3 Ra8 Ba4 Ra6 Bb5 Rb1 a1Q Rb6 Qa3 Ra1 Kb3 Rb1+ Ka2 Nce3 Bc4 Bcd2 Bb3 Rd1 Bc2 Bc1 Bb1 Rh3 Bc2 Rf3 Kb1 Rf2 Nd7 Rf7 Nc5 Kf2 e1R Be2 Rg8 h8R Rh1 Nd8 Re1 Rhh6 Rh8 Bf3 Rh7 Nc4 Re4 Nce3 Rh8 Ke1 Rh7 Bg3 Re7 Be5 Rh8 Nde6 Rh7 Rhf6 Rh8 Rf4 Rh7 Nhf6 Rh3 Nh5 Rd4 Ngf6 Bh7 Rh4 Rd3 Nfg4
3R1nK1/2b4N/krN5/1N2R2N/1n2b1R1/1B1q3n/1PNBb1NN/b4rNn b - - 0 1 legal: proof: e4 d5 a4 b5 axb5 c5 g4 h5 gxh5 f5 exf5 c4 Na3 c3 Qf3 d4 Qd5 d3 cxd3 c2 d4 Qd6 Qa2 Qd8 Qb1 cxb1B d5 Ba6 Ke2 Bb7 Ke1 Bc8 Nh3 Kd7 Ke2 Kc7 Kf3 Kb7 Kg4 g5 d4 e5 f4 a5 h6 e4 Kh5 a4 Kg6 g4 Kf7 e3 f6 g3 h7 g2 d6 g1N d7 e2 b6 e1N d5 Ngf3 d6 Ba2+ Bc4 Ra6 f5 Nd4 Rg1 Nb5 Rg4 Ra5 Bb3 Ra6 Bd2 Nc2 Re1 Na7 Re5 Kc6 b7 Qb6 d8N+ Kd7 Ne6 Kc6 Nd4+ Kd7 Nf3 Kc6 d7 Nb5 d8R Nd7 b8N+ Kb7 Nc6 Bd6 Kg7 Qg1 f7 Qd4 f8N Rb6 f6 Nh6 f7 Bc7 Ng6 Bb1 f8N Nf7 Ngh4 Nb4 Ng2 Be4 Nc2 a3 Nhg5 a2 h4 a1B h5 Nfd6 h6 Nc3 Nh3 Nf5+ Kf7 Ng3 Kg7 Nh1 Nh2 Rb5 Ng1 Ncd5 Kf7 Rg8 h8N Rb6 h7 Nf4 Nhg6 Nh3 h8N Qd6 Nh7 Rf8+ Kg7 Rf1 Nf7 Nf8 N6f4 Be6 Kh8 Bc4 Nh5 Be2 Kg8 Qd3 Nd6+ Ka6 Nb5
2k1B2b/B1N1B1q1/P6q/1B2p1Bn/R1Np2KB/nb1bN3/1rn5/3BRB2 b - - 0 1 legal: proof: e4 c5 d4 a5 dxc5 f5 exf5 a4 g4 a3 f6 Ra4 bxa3 Ra6 a4 Ra7 a5 Ra8 f4 h5 g5 b5 Qg4 hxg4 f5 Qb6 Bb2 Kd8 Ba3 Kc7 Bc1 Kc6 f7 Ra6 Kd2 Qd8 Ke2 Kd5 Ke1 Rf6 gxf6 Kc6 Ke2 Kb7 h4 d5 a4 g5 c4 e5 h5 d4 h6 b4 c6+ Kc7 h7 g3 Kf3 g2 c5 b3 a6 b2 a7 Qe8 a8B Kd8 a5 Qd7 a6 Ne7 Na3 b1B Ne2 g1Q Nc4 Qe3+ Kg4 Bg7 f8N Qd3 c7+ Ke8 c6 Bh6 Ra4 Qd6 Ne6 Nd7 Ng3 Nd5 f7+ Ke7 Bd2 N5b6 f8B+ Ke8 f6 Bg7 Be7 Qg6 Rg1 Bd3 Nf5 Rf8 Bb7 Bh8 Nfe3 Qg7 Ba8 Bb7 c8B Rg8 c7 Bd5 Bc6 Rf8 Na5 Nc4 Bb5 Na3 Nac4 Qb6 Bb7 Rf7 c8B Qd6 Kg3 g4 B7c6 Rf8 Kh4 g3 Kh3 g2 Nc7+ Kf7 Rh1 g1N+ Kh4 Nf3+ Kh3 Nb6 Bg4 Ne1 Bd1 Nec2 Be1 Rb8 Bh4 Nd7 Bg5 Nf8 Kg4 Ng6 Bd7 Qc6 Bc5 Qd6 Ba7 Nf4 Be8+ Kf8 f7 Nh5 Rg1 Qdf6 Rh1 Ke7 f8B+ Kd8 Bfc5 Qh6 Be7+ Kc8 Rg1 Bg7 h8B Qf7 Nb2 Bb3 Nbc4 Bf6 Bg7 Qg8 Bgf8 Bh8 Bg7 Qf8 Bg7f6 Qf7 Bh4 Qfg7+ Bfg5 Ba2 Bbc6 Rb2 Bb5 Bb3 Bg2 Ng3 Re1 Nh5 Bf1
QQ1N2qk/2pNbr2/1P6/RP2n1b1/3KNB2/Bb2RBnR/1r2r3/4Q3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 h5 d4 g5 g4 gxf4 gxh5 e5 dxe5 Kd7 Ne2 Ke7 Ng1 Ke8 Ke2 Kf7 Kd3 Kg7 b4 a5 h4 f3 f6+ Kh7 d6 f2 f7 a4 e6 a3 e7 a2 e8R Ra6 b6 Nh6 d7 Ra5 b5 Bb4 f8B Bd2 Nc3 Nf7 h6 Nc6 h5 Na7 Re3 Nd6 Be2 f1R Ne4 Rg8 Qe1 Rg6 Nf3 Nc6 Ne5 Re6 Rhh3 Kh8 h7 Nf5 Bfa3 Qg8 d8N Ng3 Nd7 Ne5+ Kd4 Rf7 Bf3 Bb7 Bg4 Bd5 Bd1 Bb3 Bf3 Kg7 h6+ Kg6 h8Q Bb4 h7 Be7 Rb1 a1B+ Rb2 Ra8 Bh5+ Kh6 Nc6 Raf8 Nd8 Rf2 Bd2 R8f7 Bc1 Re2 Bd2 Rc6 Bc1 Rc3 Ra2 Bb2 Bd2 Bc1 Ra1 Rc2 Ra2 Qg5 Qg8 Rb2 h8Q+ Rh7 Qd5 Qg7 Qe8 Qg8 Qa8 Kg7 Rc3 Ba4 Nb7 Rh8 Bb4 Bh4 Qeb8 Be7 Nd8 Bb3 Ra5 Rh7 Ba3 Kh8 Bh6 Rf7 Rd3 Bcg5 Re3 Bh4 Bf4 Bhg5 Bf3+
1q1rRb1k/5R2/4KB1Q/Q3P2n/1Nn3nB/1N3q1P/QB4qb/Nr1R1b2 b - - 0 1 illegal: No possible last move
5NK1/1R2rN2/2n1PB2/1Rn1rn2/b1BbQB1r/3P1Q1n/N5Rn/k1q2Q2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 g5 h4 c5 d6 f5 d7 f3 Ke6 f4 Kf7 f2 a6 f3 e5 c4 b6 c3 a7 g4 h6 c2 h5 Kb3 e6 g3 h7 g2 b7 Nf6 h6 Be7 Rh5 Ne4 Ne2 g1N Ra2 Nc5 Nf4 Bg5 Ng6 Nh3 Nc3 Bf6 Nf8 Nc6 b8R+ Bb7 Qe1 Qc8 d8Q Bd4 Qe4 Qc7+ Qe7 Qc8 Bb5 f1N d3 f2 Qf6 Ng3 Bf4 f1N Rg5 c1R Rg2 Ra1 Na2 Nf5 Bc4+ Ka3 Qf3 Nh2 Qf1 Ba6 Rb7 Bb5 Rh5 Rb8 a8Q+ Ba4 Qe5 Rc1 Qe4 Re1 Qef3 Re5 Qe4 Rg8 h8N Rg4 h7 Rh4 Kg8 Qc7 Rhg5 Re8 Nf7 Re7 h8B Qc8 Bf6 Qc7 Rgb2 Qc8 R2b5 Qc7 Bb3 Kb2 Rg3 Qa5 Rg1 Qe1 Bc4+ Ka1 Rg2 Qc1 Qef3 Bb3 Qa4 Bc2 Qb4 Bb3 Qbe1 Ba4 Qee4
2r1n3/n2NQR2/1q6/1B1r1BPb/1qRr1Rn1/rP2n1N1/BQ1Q4/1N3k1K b - - 0 1 illegal: No possible last move
QQ1qn3/3RNb1B/3pnbR1/2P1bQ1r/r5Pk/B7/3BNKb1/2b1NR2 b - - 0 1 legal: proof: d4 b5 e4 f5 exf5 g5 a4 h5 axb5 c5 g3 cxd4 f3 h4 gxh4 g4 fxg4 Bh6 Qf3 Bg7 Qd1 Bf8 b4 Kf7 c4 Kf6 h5 a5 h4 e5 h6 e4 h7 e3 b6 a4 h5 Kg5 b5 d3 h6 a3 b7 a2 b6 Ra3 f6 Bd6 f7 Bf8 Qc2 Qf6 Nc3 Qe7 Nce2 Na6 b8R Nc7 b7 Ra4 Bd2 Bg7 f8B Ne6 Rd1 Qd8 Ba3 a1B c5 Nf6 Bg2 Ne8 Be4 Bge5 Nf3+ Kf6 O-O d6 Ne1+ Kg5 Rf6 Bad4 Rg6+ Kh4 Ra8 Bd7 b8Q Bc6 Ra7 Bb2 Bf5 Bg2 Rd7 Bc1 Be4 Rf8 h8Q Rf5 h7 Rh5 Qg8 Bf6 h8N Be5 Nd4 e2 Kf2 Bf6 Rh6 Be5 Bh7 Bf6 Rg6 Be5 Bf4 d2 Qf5 Bf6 Nd3 Be5 Rf1 d1B Bd2 Bb3 Ne1 Ba2 Nf7 Bf6 Ne5 Bc4 Nec6 Bcd5 Nd3 Bb3 Ne7 e1B+ Ke2 Bf2 Ne1 Bg3 Qf8 Bge5 Kf2 N6c7 Ne2 Bf7 Qh6 Ne6 Qhf4 Re4 Qf3 Ra4 Qfa8
N4N2/1Q2QnB1/2KnR1PR/b4qb1/3B3r/4Rnkp/r1B2P2/1QN1b2b b - - 0 1 illegal: Other
Q1B2b1k/NR1Rr3/2BqPKNn/6Bq/1r2P3/pQ3N2/Rn2Q3/q3r2n b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 f5 cxd5 e5 f4 Be7 fxe5 Bf8 g4 fxg4 h3 g3 Qc2 g2 Qb3 Ba3 Qd1 Bf8 Na3 g5 Nb1 g4 Ra4 g3 Ra1 Bg4 hxg4 Qc8 Qa4 Qd7 Qd1 Qd8 e4 Kf7 Ke2 Kg7 Kd3 h5 Kd4 a5 b4 c6 g5 a4 g6 h4 b6 a3 b7 h3 d6 h2 d7 Bd6 b5 Nf6 b6 Qe7 d8R Nh7 Rd7 Qf7 Nc3 Ra6 Qe2 Kg8 g7 Qf3 Ra2 Nf6 Nd5 Ra7 Nf4 Bf8 Ng6 Qh5 Nf3 g1R Bh3 Na6 b8Q g2 b7 Nc5 Qa8 Na4 b8Q Re1 Qb3+ Kh7 d3 Ng4 Bg5 c5+ Kd5 g1Q Ke6 c4 d4 c3 d5 c2 d6 Nh6 Kf6 c1Q Rb7 Qg3 d7 Rf1 d8N Qa1 Bc8 Re1 Nc6 Nb2 e6 Ra4 Na7 Rb4 Rg1 h1N Rf1 Rc1 Rd1 Qc7 Rd2 Re1 Rd7 Qd8+ Ke5 Qe7 g8B+ Kg7 Bf7 Rh7 Be8 Kg8 Qed1 Qd6+ Kf6 Re7 Qe2 Kh7 Rdc7 Kg8 Bc6 Kh7 Rd7 Kg8 Nf4 Kh8 Ng6+
2R1BBr1/Q6k/1q1Q1prN/1qq3n1/R1RN4/2q2PQ1/4Prb1/N1B2nK1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 h4 gxh4 d4 e5 dxe5 Bd6 bxc5 Bc7 c3 Ba5 Rh3 Bb4 cxb4 Qa5 Rh1 Qd8 g4 Kf8 c6 Kg7 f3 a5 Kf2 d5 e6 h5 c7 a4 g5 a3 e7 a2 e8Q f6 g6 h3 b6 h4 b7 d4 b5 h2 b6 d3 Nc3 d2 Ne4 Nd7 b8N Ne5 b7 Ne7 Nh3 Nd5 Nc5 Rh6 Qe7+ Nf7 Nb3 Ne3 Ng5 h3 Nc6 Be6 Rg1 h1R b8B h2 Bh3 Nf1 Rg4 Qd3 Qa3 Qb5 Qa7 Kg8 g7 Bc8 Rb1 a1Q Ra4 Qb6+ Kg2 Qc3 Na1 Qcc5 Bd7 Qcb5 Ne4 Kh7 Rbb4 Q5c5 Nd6 Qcb5 g8R Ng5 Nf5 Rg6 Nh6 Q5c5 Qe1 Qcb5 Rd4 Rg1+ Kf2 h1Q Rd8 d1Q Qd2 Ne3 Rdc4 Qdb3 Qb4 Qh3 Nd4 Nf1 Bc6 Bd7 c8Q Qc3 Qcc7 Qhf5 Qg3 Rh1 Rg8 Rh2+ Kg1 Rf2 Bd6 Qfe5 Be7 Bh3 Qd6 Qec5 Rf8 Rc8 Bd7 Bg2 Re8 Rc7 Bf8 Rb7 Bc6 Rbg7 Bd7 Rg8 Rc8 Qbc7 Bc6 Qcb6 Bd7 Qcc5 Be8+
2Q2NNQ/2KR1P2/5RPb/pk1B1q1Q/q3RB1B/5q1r/b4r1q/3q2Nb b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 g5 a4 b5 axb5 g4 f4 Nd7 c4 Nh6 f6 Nf7 f5 Ng5 hxg5 Nb6 Be2 Qd7 Bf1 Nd5 cxd5 Qd8 Ke2 Kd7 Ke3 h5 Kd4 a5 Ke5 c5 b4 e6 d4 h4 d6 c4 d5 c3 f7 e3 f6 c2 g6 e2 b6 h3 b7 h2 b8Q g3 b5 g2 b6 Ba6 b7 Qc7 Nd2 e1Q+ Ne4 Rh3 Bf4 c1Q Bc4 Bh6 Ra4 Qb4 Qh5 Qcb1 Qh8 Rf8 b8Q Qc6 Bb3 Bc4 Qb7+ Kd8 d7 Qf1 Qa6 Kc7 Qc8+ Kb6 d8B+ Kb5 d6 Qd7 Be7 Qf3 Ba2 Qb1 Bb3 Qe8 d7 Qc2 Kd6+ e5 d8R Bd5 Nd2 e4 Rd7 e3 Re4 e2 Ba2 Qa4 Kc7 e1Q Bd8 Qe6 Be7 Rd8 f8N Qf5 f7 Qed1 Bh4 Be6 Bd5 Re8 Ba8 Ba2 Bd5 Re6 Rd4 Re3 Ne4 Re2 Nf6 Rd2 Re4 Rf2 Ne2 g1Q Ng8 Qgg3 Rf1 h1B Ng1 Qgg2 Re6 Qh2 Rf6 Qfa3 Re1 Qaf3 Re4
1B1QNn1K/RPpQk1Nn/2n4P/4r2B/2B1n3/Rn1QRn2/1nNr4/7b b - - 0 1 illegal: No possible last move
2BB3Q/knn3NQ/B3NqPq/n1q1R1N1/1P5r/rp4Q1/2R1K1Rr/6q1 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 b4 Nb8 b5 Bg7 Qb3 Bh6 Qd1 Bf8 a3 a5 Qg4 Bg7 Qg5 Bc3 Qg4 Bb4 Qe2 b6 Qd1 Ba6 bxa6 b5 Bc4 Bc3 Be2 b4 Bd3 b3 Bf1 Bb4 axb4 Kf7 Rh2 Kf8 Rh1 Ke8 f4 Kd7 g4 Kc8 d4 e5 d6 c5 d5 h5 d7+ Kc7 d6+ Kb6 f6 c4 f7 a4 f8N h3 a7 a3 g5 a2 g6 e4 f5 c3 f6 e3 f7 c2 Qd3 h2 Ne2 h4 Nbc3 h3 Ng3 e2 Nf5 Qe7 d8Q+ Kb7 d7 Qg5 Ne4 Qg1 Qh4 Nf6 d8Q Nc6 Bg5 Ne8 Ng7 Na5 Rc1 a1Q Nfe6 Nc7 f8R Qf6 Re8 Qc5 Kd2 e1N Rg1 h1Q Qdg3 h2 Ke2 Nd3 Rg2 Qhg1 Qh7 h1R Bh4 Rh2 N4g5 Nf2 Qd4 Ne4 Qa1 Nd6 Qd4 Rc8 a8B+ Ka7 Bb7 Ra8 Bc8 Ndb7 Re7 Rd8 Qb2 Rd3 Qd4 Rd1 Qd8 Rd4 Qdh8 Rc4 Nf4 Rd4 Re5 Rc4 Nfe6 Rd4 Ra1 c1Q Ra2 Rf4 Rc2 Rc4 Nh3 Qh6 Bg5 Qff8 Be7 Qf6 Nhg5 Rch4 Bd7 Rd8 Bc8 Rd1 Bd8 Ra1 Kd2 Ra4 Ba6 Ra3 Ke2
b3bQn1/1Nn3kq/1Qn2bN1/5K1R/1B1q3p/R1R3N1/B2nP1P1/1BQ3b1 b - - 0 1 illegal: No proof kernel forced: bxLB
1n1r1nn1/bN1pp3/2Q2rr1/1Q1P1P1R/BN1kNR2/5qRb/3K4/1Q3B1B b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Na6 b4 Nb8 bxc5 Ba6 Kf2 Bb7 Ke1 Bc8 fxg5 h6 g4 Qa5 g6 Qb6 g7 Qd8 g5 Nf6 g6 Qb6 Bb2 Ng8 Bf6 Qd8 Bg5 hxg5 h4 a5 c4 a4 d4 g4 c6 a3 b6 g3 c5 g2 c7 a2 c6 Rh6 h5 Rh8 h6 Nf6 g8B Ba6 c8Q Nh7 b7 Nf6 c7 Rh7 g7 Ra7 Rh5 Bb5 Nc3 Ra4 Bd5 Rh8 g8B Rc4 h7 Bh6 Qb1 Rc6 Nge2 g1R Bh1 Be3 Nf4 Rg6 Bb3 Ng8 Ba4 Kf7 Nd3 Kf6 Nb4 Qe8 d5 Ke5 Kd1 Kd4 Ne4 Rcf6 Kc2 Bg1 Kd2 Be2 Rh3 Bg4 Re3 Bh3 Rg3 Nc6 Qa8 Nb8 c8N Bf2 Ncd6 Qc8 Qa6 Qc3+ Ke2 Qb3 Kd2 Qf3 Qb5 Bg1 Qc2 Bf2 Qcc6 Bg1 Re1 a1N Re2 Nc2 Rf2 Qg4 Rf4 Qf3 Rfg4 Na3 Rf4 Nc4+ Kc1 Ne5 Kc2 Nh6 Kd2 Rd8 h8R Ng8 Rh6 Rg5 Rh5 Ng6 Be2 Nf8 Bf1 Na6 b8Q Rgg6 Q8b7 Nb8 Q7b6+ Ke5 Nb7 Bd4 Q6a6 Ba7 Qc1 Kd4 Qb1 Ke5 Qd6+ Kd4 Qdc6
1rr1q2r/5b2/pp5Q/1PQPq1n1/1RBNbNn1/2N1Bk2/2R1R3/K2Q1B2 b - - 0 1 legal: proof: b4 d5 h4 c5 bxc5 g5 c4 gxh4 cxd5 f5 e4 Bh6 exf5 Bg7 a3 Be5 Nf3 Bc3 Ng1 Bb4 axb4 Qa5 Qb3 Qb6 Qd1 Qd8 g4 Kd7 f4 e5 d4 h5 Kd2 a6 Kc3 b6 Kb2 e4 d6 Kc6 f6 Kd5 f5 e3 c6 Ke4 d7 e2 f7 e1Q f8Q h3 g5 h4 b5 h2 g6 h3 c7 Qf2+ Ne2 Nc6 g7 Na5 f6 Nc6 f7 Bb7 c8R Qe1 Ra2 Rb8 Be3 Nf6 g8B Ne5 Ka1 Bd5 Nbc3+ Kf3 Qc5 Nh7 f8Q+ Bf7 Qh6 Qe8 d8N Ng5 Ne6 Ng4 N6f4 Qg3 Rg1 h1R Rb2 h2 Rg2 Rg1 Rb4 h1B Rc6 Bh5 Bc4 Bf7 d5 Qh2 Ne6 Qe5 Rh2 Rg2 N2f4+ Re2 Qb1 Rc2 Qd1+ Kg3 Re2 Be4 Rc7 Kf3 Nd4+ Kg3 Qe7 Qd7 Na2 Bh7 Bb3 Be4 Rcc4 Qe8 Qc7 Rd2 Qc8 Rd3 Rcc2 Rc3 Qcc6 Rc5 Nc3 Rc4 Qcd6 Rc6 Bc4 Rcc8 Nde6 Kf3 Qc6 Rh7 Qc5 Rh8 Nd4+
R1R3b1/b2bb3/1rQ5/P1p1nPNK/3qNB1Q/BrRp4/BQ2Nq2/k7 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 b5 c4 c5 cxb5 Nh6 d4 Nc6 d5 Ng8 dxc6 Ra6 Nf3 Ra7 Ng1 Ra8 f6 Kf7 Ke2 Ke6 Kf3 Ke5 Kg4 g5 h4 b3 a4 b2 c7 Ra6 h6 Rb6 Nd2 Kd4 f4 Kc3 h5 b1B f5 e5 h7 d5 h6 e4 f7 e3 Rh3 d4 Bc4 Ne7 Qf3 Ng6 Qc6 Be7 f8N Ba2 Ne6 Qd6 Bd5 Bd7 c8R Kc2 Bb2 e2 Ne4 e1B Rd3 Rg8 h8Q Bg3 h7 Bb3 Ra2 Kb1 Qg7 Qe5 h8Q Qf6 Bc4 Bb8 Qh4 Qe5 Kh5 g4 Rf3 g3 Ne2 g2 Qgf6 g1Q Ra3 Ra6 b6 Qf2 b7 Rb6 Bc1 Ba2 Rfb3+ Ka1 a5 Ba7 b8B Rb4 Qg7 Qd5 Bbf4 Rb7 Ra8 Rgb8 N6g5 Qe5 Rb6 d3 Rab3 Qf6 Ba3 Qc3 Qd4 Ne5 Bf7 Qb2 Qb4 Qbd4 Rc3 Bb3 Rb5 Ba4 Ba2 Bb3 Qa4 Bg8 Qc2 Rc7 Rb7 Rcc8 Rc7 Rb3 Qd2 Rcb8 Rc8 R8b6 Qb2+
q2q2N1/PB6/2R1q3/3NNB1b/qr3R1p/Q1K1R2k/B2Pp2r/1Q2nn1Q b - - 0 1 illegal: No possible last move
2RB2n1/R5B1/1p1KN2B/P3n3/nQ2b1r1/N2kPQ2/2r1pbNb/Qn2R3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 h4 c4 h3 c5 Rh6 c6 Rh4 gxh3 Rh6 h4 Rh7 h5 Rh8 e3 f5 Bd2 b6 Bc4 f4 Be2 f3 Bc1 fxe2 Kd2 Qh4 Qc2 Qc4 Qa4 Qa6 Qd1 Qb7 cxb7 Ke7 Na3 Kf7 Nb1 Ke8 Kc3 Ke7 Kc4 Ke6 f4 Kf5 Kd5 g5 a4 c5 h4 g4 h6 d6 h5 g3 a6 g2 a7 c4 e6 c3 e7 c2 e8Q Nc6 b8R Nd4 h7 Bd7 h6 Be7 Qf8+ Bf6 Ba3 c1N Nh3 g1B Rc8 Bh2 Re1 Rb8 a8Q Nc2 Ng5 Rb7 Ne6 Rc7 Qd2 Rc6 Qb4 Nd3 Bb2 Be8 Na3 Bg6 Qg7 Bg5 Bf6 Bh4 Bd8 Bf2 Ra2 Rc7 Qa1 Rg7 Kc6 d5 Kd6 d4 Qf3 Ne5 Qbb2 Nf6 Qb4 Re8 h8N d3 h7 d2 Rb8 d1N Rc8 Bf7 Ng6 Nb2 h8B Ng8 Ng5 Bd5 Ne6 Rc7 Bg7 Be4 Bh6 Nd4 Bg7 Nb3 Bh6 Ree7 Bg7 Rc1 Bh6 Nd2 Nh4+ Kf6 f5 Rc2 Ng2 Nb1 Bc7 Rg7 Bd8+ Kf7 f6 Rg4 Bg7 Kg6 f7 Ne7 f8B Ng8 a5 Na4 Bh6 Rc4 Rd2 Rc2 Qg3 Kf5 Bfg7 Rb2 Rdc2 Ra2 R2c7 Rc2 Qc4 Bb7 Qb5 Ke4 Qb4+ Kd3 Qf3 Be4 Ra7
2nBK1b1/r2N1R1B/2q1Q3/4QN1k/1n1q1n1n/3q1P2/BpNp2P1/3R1R1Q b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 d4 c5 b4 axb4 dxc5 Ra4 Kd2 Ra3 Ke1 Ra8 Kd2 b5 Na3 f5 Bb2 e4 Bc3 Bd6 Nb1 Be5 fxe5 f4 Bb2 f3 Bc1 f2 Rh6 Ra3 Rh1 Rf3 exf3 Qa5 Rh5 Qb6 Rh1 Qd8 Ke3 Kf7 Kf4 Kg6 a4 d5 c4 h5 e6 e3 Ke5 e2 a5 e1Q+ Ne2 h4 e7 h3 e8Q+ Kg7 c6 h2 a6 d4 c5 b3 a7 b2 a8N d3 c7 b4 g6 b3 c6 Rh3 Bg5 d2 Na3 b1N Nc2 b2 Nb6 Rh7 Nd7 Na6 Kd6 Nc3 Ng3 Nb4 Bc4 f1Q Ba2 Ncd5 Rc1 Qc4 Rf1 h1N Rb1 Bb7 c8Q Qd3 c7 Qee4 Qe1 Bc6 Rd1 Nge7 Qa6 Qed4 c8R Q8b6 Rc7 Nc8+ Ke6 Qb7 Bd8 Kh6 g7 Nf4+ Kf7 Qbb6 Kf8 Bd5 g8B Qc6 Q8e5 Bf7 Nf5+ Kh5 Qc4 Ng3 Qce6 Rg7 Bh7 Bg8 Ne7+ Nf5 Ke8 Rg5 Ra7 Nh4 Nf5 Rg4 Q1e3 Rg3 Qg1 Rg7 Qh1 Qcc4 Nb8 Rc7 Nd7 Qc6 Ra3 Ra7 Rc3 Qcb5 Rc7 Qc6 Rb7 Qca6 Nb6 Qac4 Rf7 Qc6+ Nd7
1qB1b2Q/bn4Pk/R2p3r/2Nr3P/RQ3BQp/pNn1n1B1/4R2N/7K b - - 0 1 legal: proof: d4 b5 h4 f5 g4 h5 a4 c5 axb5 cxd4 e4 g5 hxg5 h4 exf5 Qb6 Ra6 Qg6 Ra1 Qh5 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 f4 Kf7 Kf2 Kg7 Kg2 e5 b4 a5 c4 e4 f6+ Kh7 b6 e3 c5 d3 f5 a4 b7 d2 f7 e2 g6+ Kh6 c6 e1Q f6 Bg7 f8Q Ra6 b5 Qe5 c7 Rh7 b6 Qf5 f7 Nf6 Qg4 Qa5 Nf3 Ra8 Nh2 Ne8 Qfb4 Bd4 f8Q+ Ng7 Ba6 Qc5 Re1 Nc6 b8N Nd8 b7 Qd6 Re2 Ba7 Kh1 Qf4 Ra3 d1N Nd2 Nc3 Nb3 Rh8 Bd2 Rh7 Be1 Qe5 Bg3 d6 Nd7 Qb5 b8B Nb7 Ndc5 Bd7 c8R Be8 Rc6 Qb6 Ra1 Qd8 Bc7 Qb8 Bd8 Rh8 Bf6 Rh7 Bfe5 a3 Rd1 Rh8 Rd4 Rh7 Qg8 Nf5 g7 Rh8 Qf8 Kh7 Bef4 Ne3 Rc4 Nd8 Bc8 Nb7 Qf7 Rf8 Qe7 Rf6 Qf8 Rh6 Rd4 Bb6 Rc4 Ra5 Rd4 Ba7 Ra6 Na4 Qe1 Nc3 Ra4 Na2 Qb4 Nc3 Nd3 Re5 Ndc5 Rd5 Qh8#
k1b2qbK/1qn2BNp/3RQ2p/2r1BpR1/P1P1NR1B/2Q1NQ2/1b6/7b b - - 0 1 legal: proof: d4 a5 h4 c5 dxc5 e5 b4 b5 bxa5 d5 e4 d4 h5 Nd7 h6 gxh6 f3 Nb6 f4 Nd5 exd5 e4 Qe2 Ra7 Qd2 Re7 Qd1 Re5 fxe5 Bb7 Qf3 Ba6 Qd1 Bc8 Kf2 Kd7 Kg3 Kc7 Kf4 Kb7 a4 f5 g4 e3 c6+ Kb8 e6 d3 Ke5 d2 c7+ Ka8 d6 e2 g5 e1Q+ Ne2 b4 e7 b3 e8N b2 d7 Qh4 g6 Qb4 a6 Ka7 g7 Qc4 Nd4 Nf6 g8Q Qb4 Ng7 Qa3 Nc3 b1B Qf3 d1B Bf4 Be2 Qe6 Ne8 Rg1 Ba2 Ne4 Nd6 Rg5 Bb5 Bc4 Qc3 Rf1 Qe7 d8B Qd7 Kf6 Qa3 Be5 Bb7 c8Q B5c6 c3 Qb4 Nc2 Nb5 Ne3 Nc7 Rf2 Be7+ Kf7 Bf6+ Be7 Kb6 a7 Re8 a8R Qd5 Qd7 Bc8 Ra6+ Kb7 Rf1 Qdb5 Qd2 Qa3 Rb6+ Ka8 Bb3 Bd5 Rd6 Qb7 Bd8 Re7+ Kg8 Bc6 Kh8 Rd7 Rd4 Rd5 Rd3 Rc5 Rd6 Be8 Qe1 Bf7 Bd5 Bg8 c4 Bb1 Qb4 Bd3 Qc3 Be2 Qh5 Bf3 Rf2 Bh1 Rf4 Qb4 Qf3 Qb5 Qe7 Qe8 Bf7 Qf8 Rh5 Bh4 Rg5 Be1 Qd7 Bd2 Qe6 Bc1 Rg2 Ba3 Bh4 Bb2 Rg5
NN1rR1qn/1p3QRR/1nb4B/1k1Q2P1/p6B/p3P1Q1/bb1B2p1/1N4K1 b - - 0 1 illegal: Other
K1Q2q1n/1R1q1RN1/1pQ1BRp1/1Q5k/1Brn4/1P2N1pp/4PBq1/1N4b1 b - - 0 1 legal: proof: f4 d5 a4 f5 c4 e5 cxd5 b6 fxe5 Qe7 g4 Kf7 a5 Bb7 a6 Ke8 axb7 Qd8 h4 a5 h5 a4 h6 Ra5 Bg2 Rc5 Bf1 Rc6 Rh3 Rd6 Rh1 Rd7 Qc2 g6 Qd1 Rg7 hxg7 fxg4 Kf2 Kf7 Ke3 c5 Ke4 h5 d4 h4 e6+ Kf6 e7 a3 e8Q g3 d6 c4 Kd5 a2 d7 c3 b3 c2 Be3 c1Q Bf2 Kg5 Nf3+ Kg4 Ne1 Kh5 Nc2 Qa3 Ne3 Na6 Kc6 Qa8 d8B Qb4 d5 Qe1 d6 Qb4 d7 Qd2 Bh3 Qb4 Be7 Qa7 d8Q Rh6 b8R Rh8 Qc1 Nc5 Be6 h3 Qc8 Nh6 g8N Nf7 Rb7 Rh7 Kc7 Nh8 Qb5 Qe4 Nh6 Qg2 Nhf5 Qa4 Qa5 Qd7+ Kb8 Bg7 Re1 Bd4 Rf1 Rg7 Qc6 Rg8+ Ka7 Rc8 Qab5 Rc7 Bf7 Ne6 Bb4 Bc5 Ka8 Nd4 Be6 Be7 Qe4 Rc4 Qec6 Bd6 Qa3 Bc5 Qaa6 Qd6 Rf7 Qf8+ Qc8 Qf3 Na3 Qg2 Rad1 a1Q Rd3 Qc3 Nb1 Qd2 Rf6 Nc2 Rd7 Qd4 Rdf7 Qd7 Rc1 Nd4 Rc2 Qgd5 Ra2 Qe4 Ra7 Qg2 Rb7 Qh1 Nd1 Nc2 Bfe1 Bg1 Bf2 Qg2 Nde3 Nd4 Ng7+
3rb1n1/b2r3B/PqPR1BNk/1n1Q4/5NRn/2n2B2/1K1R3r/NQ2bnQ1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 b5 f4 g5 h4 Kg7 c4 e5 Kc2 d5 f6+ Kh7 f5 g4 a5 b3+ Kb2 e4 c6 d4 c5 e3 c7 g3 h6 e2 f7 e1N a6 b4 f6 d3 c6 d2 h5 g2 Nh3 g1B Bg2 Bd6 f8Q Bf5 c8B Ra7 f7 Bc7 Na3 Nd7 Ra2 Bg6 Bf3 Ndf6 Bf5 Nd5 Qd6 Ne3 f8Q Nf1 Nc2 Ng2 Nf4 Nh4 Na1 Ba5 Qd5 Qb6 Qb8 Rd7 Bc2 Bf2 Rg1 Rd8 Qe1 d1R Rg4 Rd3 Be3 Be8 Bd4 Rd7 Bf6 Bc5 Rg6 Rd2 Qe3 Rh2 Qg1 Be3 Kb1 b2 Rg4+ Ng6 Bd3 Bf2 Kc2 b1N Kb2 b3 Qb7 Nc3 Bf5 Qc5 Qb4 Qa7 Qbe4 Qc7 Qb1 Nb5 Kc1 Rg2 Bc3 Qb7 Be5 Bae1 Qbd3 Rh2 Bg7 Be3+ Rd2 b2+ Kc2 b1N Kb2 N1c3 Qb1 Bd4 Bc2 Ne7 Be5 Bf7 Bf5 Kg8 h7+ Kf8 h6 Nh4 B5e4 Rg8 h8R Ba7 h7 Qb6 Bc2 Be6 Bd3 Kf7 Bg7 Rgd8 Re8 Ng8 Bf6 Qb8 Bde4 Qb6 Re7+ Kf8 h8N Bf7 Re6 Bg6 Rd6 Be8 Bg5 Kg7 Bf6+ Kh6 Bh7 Qb8 Nhg6 Qb7 Qbe4 Qb6 Qb1
qr5b/2Nq4/1Bbn1RNK/Pr1RrQQB/5P2/5B1R/r1N1k3/r1n3nQ b - - 0 1 illegal: No possible last move, all moves rejected
3bQ2n/r2rQQ2/bRN1Pr2/n2bR2N/2q4r/KP3B2/2rN1kq1/3B2BR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 d4 Kd6 Kd2 a5 Kc3 f5 Kb3 c5 e4 h5 g6 f3 g7 c4+ Ka4 f4 b3 f2 b6 c3 b7 h4 g5 h3 g6 c2 Ne2 f3 Bg2 f1Q Nd2 h2 Ng3 f2 Qh5 Ne7 g8B Nbc6 b8R Qc4+ Ka3 f1R g7 a4 Be6 Ng6 g8Q Ra7 Bg4 Be7 B2f3 Rd7 Qe8 Ba6 Rb6 Qa8 Qf7 Bd8 e5+ Kc7 e6 Kd6 Qg5 Rh4 Nh5 Nh8 Qgg8 Qb7 Qge8 Qa8 Bd1 Rf6 Bgf3 Qb7 Re1 h1B Re5 Qa8 Bb2 c1R Rb1 Rc2 Rc1 Kc7 Ra1 Na5 d6+ Kc8 d5 Bg2 Rc6+ Kb7 Bd4 Bh1 Bg1 Bg2 Bh2 Ka7 Rc7+ Kb6 Rb7+ Kc5 Rb6 Kd4 Qee7 Re4 Rc1 Ke3 Ra1 Kf2 Rb1 Rb7 d7 Rh4 d6 Rc7 Bg4 Bd5 Bgf3 Qac6 Qee8 Be7 d8N Rd7 Qg7 Qb7 Nc6 Qa8 Qef7 Qg8 Qgf8 Bd8 Q8e8 Qg6 Bde2 Qg3 Rh1 Qg2 Bd1 Rb7 d7 Bc7 d8Q Bb5 Qb8 Bd8 Qd6 Rd7 Bg4 Nb7 Qg7 Qd3 Kb4 a3 Nf1 a2 Qde7 a1R Nd2 Ra7 Qgf7 Na5 Ka3 Qc4 Bgf3 Ba6 Bg1+
RN1b1qQ1/2N2b1P/nq2Prr1/R5Rn/n1B5/1Q2n2k/7B/NBn1KQq1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 e4 c5 b4 g5 d4 a5 b6 f5 d6 Ke6 b5 g3 b7 g4 d7 a4 h5 g2 h6 a3 h7 f4 b6 f3 Rh6+ Nf6 Ne2 g1Q Nbc3 c4 Nd5 a2 Bf4 c3 Rg6 c2 Nc1 g3 Nb3 c1N Rg5 g2 Bh2 Na6 b8Q Rg8 b7 Rg6 Qe2 Qe8 d8Q Nh5 Qd3 Be7 Nc7+ Kf7 e6+ Kf6 d5 Qb6 d6 g1Q d7 Qf8 Qe8 Bd8 e7 f2+ Kd2 Qg7 Qg8 Qf8 e8B Ra7 Be2 f1N+ Ke1 Ne3+ Bf1 Ra8 Bf7 Ra7 Bc4 Ra8 Ra5 Ra7 e5+ Kg5 e6+ Kh4 Rb1 a1N Rb2 Kg4 Rg2+ Kh3 Qd1 Ra8 Bd3 Ra7 Bb1 Ra8 Nc5 Nab3 Rg5+ Qg2 Bc4 Ra7 Nd3 Nbc5 Nb4 Na4 Nc2 Qg4 Na1 Qg1+ Kd2 Ra8 Qb3 Ra7 Qa8 Rf6 b8N Bb7 Qf7 Be4 Qg8 Bg6 Qh1 Bf7 Qg2+ Kh4 Qf1 Rb7 Nd5 Rc7 Ke1 Rc5 Nc7 Rd5 Rg2 Rg5 Rg3 Rgg6 Rg2 Be7 d8R Kh3 Rgg5+ Kh4 Rc8 Bd8 Nd7 Qfd6 Ra8 Qf8 Rg2 Kh3 Nb8 Qh1 Rgg5+ Qg2 Qfd3 Qg1+ Qf1+
1bk3B1/n1BP3b/1b4q1/nNBQQ1PQ/5r2/1nR2nNN/R2q4/1n2rR1K b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 h5 Kf2 a5 g4 c5 Kg2 e5 b4 c4 b6 c3 b5 c2 d6 h3+ Kh2 e4 f6 h4 g5 a4 b7 e3 f7 e2 d5 e1N b6 a3 f5 a2 f6 Ne7 Qe2 Nbc6 b8B Na5 b7 Nec6 Ba3 c1B Qh5 Be3 Bd3 Bb6 Nd2 Na7 Ne4 Rh7 Rc1 a1N Bc4 N1b3 Rc3 Be7 f8Q Rf7 Qfh8 Qg8 Bb4 Qg6 Bc5 Bed8 Ng3 Bdc7 Qg8 Re7 f7 Re4 Be2 Rf4 f8N+ Kd8 Bc4 Bf5 d7 Bd3 N1e2 Bd6 Rf1 Nf3+ Kh1 h2 Nd4 Be5 Kg2 h1N Nb5 Nf2 Qgh8 Bd6 Qe5 Nd1 Kh1 h3 Ne6+ Ke7 d8R h2 Rg8 Kd7 Bc7 Re8 b8Q Bc2 Qa8 Bf5 Rc2 Nc3 Ra2 Nb1 Qc6+ Kc8 Rf8 Rd4 Nf4 Bc2 Nh3 Rf4 Rc1 Bd3 Rc3 Bf5 Bd8+ Bdc7 Qa8+ Bb8 d6 Re7 Qad5 Re6 Bc7+ Re8 Kg2 h1Q+ Kf2 Qe1+ Kg2 Qf2+ Kh1 Be4 Qc6 Qd2 Bg8 Qf6 Qcd5 Bh7 Qed4 Qg6 Rf6 Re2 Q4e5 Ng1 Rf7 Re1 Rf5 Ra4 Rff3 Rf4 Rf1 Nf3 d7#
3BQ2r/R1bq1Nn1/1n2Bn1B/Q1R3n1/PK6/P2Nrbk1/1N3q2/Rb1q3Q b - - 0 1 legal: proof: h4 d5 e4 a5 c4 g5 cxd5 gxh4 b3 f5 exf5 a4 bxa4 Be6 Qf3 Bd7 Qd1 Bc8 d4 Kf7 Kd2 Kf6 Kc3 e5 f4 h5 g4 c5 a3 b5 d6 c4 d7 h3 d5 h2 d6 h4 Be2 e4 Kb4 h3 Be3 c3 Bf1 c2 Bg2 c1Q Nd2 Bb7 Nc4 Qc2 Nf3 Qf2 Nfe5 Ra5 Bb6 e3 Bd5 e2 Nd3 e1N Ncb2 Nf3 Be6 Ng5 Qf3 Bc6 Rhc1 h1N Rc5 Ng3 Qh1 h2 Bc7 Qe8 d8N Nd7 Nf7 Nb6 d7 Bf3 d8Q+ Be7 Qa8 Bd6 Bd8+ Qe7 Qa6 Nh5 Qa8 Bc7 Qa7 Kg7 f6+ Kg6 Qa6 Qd7 f5+ Kh7 Qa8 Ng7 Qd5 Ra7 Qa8 Rb7 Qa5 Rb8 Nfe5 Kh6 f7 Rc8 f8R Nf6 Rf7 Rb8 Be7 Rbe8 Bd8 Ngh7 g5+ Kh5 g6 Kh4 Re7 Kg3 Nf7 Ng5 Qf1 Ngh5 g7 h1Q g8Q Ng7 Qe1 Rh3 Qh7 Rh8 Qg8 Qf1 Qe8 Qe2 Qf1 Qd1 Qh1 Na8 Kc3 b4+ Kc4 b3 Kb4 Nfh7 f6 Nb6 Nh6 Qfe2 f7 Qf2 f8B Nf6 Nc4 b2 Nf7 b1B Ncb2 Nf5 Bh6 Ng7 Qe1 Rh1 Qe4 Re1 Qea8 Re3 Qd5 Bh5 Qh1 Bf3 Qa7 Qc6 Nd6 Bb8 Nf7 Bf4 Rc7 Qd7 Qa5 Be5 Rb7 Bc7 Ra7
1QnR4/4br2/6bP/BrQNRqq1/KN3N2/2Rr1nqP/B1Q1n2B/k4n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Ke7 d4 Kf6 Kd2 g5 Kc2 a5 Kb3 c5 h3 a4+ Ka3 f3 b4 f2 d6 c4 d7 c3 b6 g4 d5 Ke5 b7 f5 h6 g3 d6 f4 b5 g2 b6 f3 Rh2 c2 Qe2 Kd4 e5 Ra7 e6 Ne7 Nc3 Nbc6 b8Q Ne5 Bg5 c1N Qc2 Ne2 b7 Ra5 Na2 Rb5 Rc1 Rh7 Qbc7 Rf7 b8Q Bb7 Bd2 Be4 Nb4 Nc8 e7 Bg6 e8N Qg5 d8B Be7 d7 Qg3 Nf6 Qg5 Kb2 a3+ Kb3 a2 Bf4 a1R Nd5 Ra6 Rh1 Rd6 Bh2 Qg3 Ka4 Qg5 Nc3 Qg3 Qca7+ Kc4 Re1 Rd3 Ba5 Qg5 d8R Qg3 Qb1 Qg5 Ncd5 Qg3 Nf4 Kc3 Qd1 Kb2 Nfd5 Nc1 Re4 Ka1 Ne2 g1Q Qc2 Q1g2 Nef4 Ne2 Qac5 Qg1 Bg2 f1N Rc4 f2 Rc3 Qg5 Be4 Nf3 Bf5 Q1g3 Be6 Rd1 Rg1 Rd3 Rg2 Ne3 Rg1+ f1Q Rh1 Qb1 Rd1 Nf1 Re1 Ned4 Re4 Ne2 Re5 Re3 Qb3 Qbf5 Qc2 Rd3 Ne3 Rf8 Ba2 Rf7 Ned5
q7/BBR1N1Qb/4QP2/r7/3b2N1/1n1Rq1Bb/2R1qbPn/1KQnkrN1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 h5 c4 e5 Kc2 d5 b4 a5 b6 d3+ Kb2 d4 c5 e4 b7 a4 b5 d2 f6 Kg6 f7 Kf5 b6 a3+ Ka2 e3 g6 Ke4 c6 d3 c7 e2 f5 Ke3 g7 Kf2 f6 e1Q Qc2 h4 Qb2 h3 Qd4+ Qe3 Qg4 d1N Nc3 d2 Ne4+ Ke1 Nf2 h2 Kb1 Nc6 b8B Bc5 f8Q Na5 b7 Nh6 g8N Nb3 Qe6 Ra5 Ra2 Ng4 Ne7 Qd3+ Rc2 Qde2 Qff7 Rh3 Qg8 Rf3 Qg7 Bd7 c8Q Ba7 Rc7 a2+ Kc2 a1B Kb1 Bb6 Ba7 Bad4 b8R Rf4 Rbb7 Rff5 Rc2 Rf3 Qef7 Bf5 Qfe6 Bh7 Rc7 Rf4 Ngh3 Rff5 Rg1 h1Q Ba3 Nh2 Ng4 Qe4 Bc5 Qa8 Bd6 Qe3 Bb5+ Rf1 Bc6 Qe2 Be5 Bf2 Bd6 Bbd4 Bg3 Qe3 Nf4 Nf3 Nh6 Qh5 Be4 Nh2 R2c6 Nb2 Ne2 d1B Rb7 Kd2 Rc3 Re1 Qcc4 Nc5 Rc7 Nb3 Rf1 Qb5 Ng1 Bg4+ Rc1 Bh3 Ng4 Rd1 Re1 Qh6 Re3 Rf1 Qcc6 Qe2 Rf3 Nd1 Rd3+ Ke1 Qc2 Ra3 Bb7 Ra5 Qb2 Qg5 R1c2 Qge3 Qc1
4BkN1/2bNn3/3PQK2/bQB2QP1/2r3qb/1r1bRB1q/5R1N/1nR1nq2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 a5 Kf3 c5 Ke4 h5 Ke5 f5 e4 c4 d4 c3 g4 a4 b4 f3 g6 h4 b6 f2 g7 a3 b5 c2 d6 f4 g5 a2 d5 h3 b7 h2 d7+ Kf7 b6 f3 Na3 Ra4 Be3 c1B Be2 f1Q Qe1 f2 Bc5 Rh3 Nc4 Bd2 Nf3 Ne7 g8N Ba5 Rc1 Na6 b8Q Nb4 b7 Nc2 Nb6 Rc4 Qc7 Qe8 d8R Qa4 b8Q Ba6 Nd7 a1B+ Qb2 Bb5 Re8 Qb4 Rg1 h1Q Nh2 Rb3 Bf3 Kg7 Qe3 Ne1 Qc8 Qh3 Qd3 f1N Rg2 Nd2 Rf2 Nb1 d6 Q1f1 Qd5 Bc7 Qe6 Ba5 Qd4 Bc3 Qf5 Bd2 Qd3 Bf4+ Ke6 Bg3 e5 Bh4 Qd5 Qc3 Qcb7 Qd4 Qb8 Ba6 Qb5 Qdg4 Qe4 Nc6 Qe2 Be7 Qe3 Bed8 Re7+ Kh8 Kf6 Bdc7 Re8 Ne7 e6 Bb7 Qe2 Be4 Qe3 Bd3 Qe2 Ng6 e7 Kh7 Rd8 Kh8 e8B Ne7 Qee6 Bb4 Ke5 Kg7 Ra8 Bd2 Ra2 Bb4 Rae2 Bba5 Re3 Bd2 Nb8 Bb4 Bf7 Kf8 Kf6 Bd2 Be8 Bda5 Nd7+
2Rb4/4NRrQ/q1Pq2N1/1nB2Q2/r3B1P1/1NRn1b1K/1B2k3/nQ1rbn2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 e5 Kf2 h5 Kg3 a5 b4 d5 c5 d3 b6 a4 g6+ Kf6 b7 a3 b5 d2 g7 a2 b6 d4 c6 d3 Kh2 e4 g3 e3 Qg4 d1Q Bg2 d2 Be4 h4 Qh5 e2 Nc3 e1B Nf3 h3 Rf1 Ra4 Bb2 Na6 b8R Qd3 b7 Ne7 g8Q Ng6 Rc1 a1N Nd4 Rh7 Nb3 Rg7 Qgh7 Nc7 g4 Ne5 Rc2 Be6 Rc8 Be7 b8Q Bd8 Qb4 Qa6 Qb6 Ke7 f6+ Kd6 f5 Nb5 f7 Nd3 f8N Ke5 f6+ Bf5 Qf7 Be6 Rf2 Bd5 Kg3 h2 Kh3 h1N Ng6+ Kd6 Rf5 Ng3 Qf8+ Ke6 f7 Nf1 Qfc5 Qe2 f8B d1R Rf7 Qd2 Qf2 Qf4 Bc5 Qd6 Ne7 Ke5 Ne2+ Nd4 Rc3 Nb5 Bg6 Bf3 Nf4 Nc1 Bb1 Nd3 Nfg6+ Ke4 Qc2 Rd4 Qa5 Ke3 Qc1+ Ke2 Bc2 Ne5 Qb1 Ra4 Be4 Nd3 Ba7 Nc7 Qf5 Nb5 Bc5
BrNqB2R/1N1r1bP1/r5n1/Qq2R3/Q4n1Q/KPB4q/b2b1N2/1kR1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 e4 Kd6 d4 c5 Kd2 a5 Kc2 h5 Kb3 f5 g6 a4+ Ka2 f3 g7 f4 g5 f2 g6 f3 b6 h4 b7 a3 Bd2 c4 Qa4 c3 Nh3 c2 Nc3 c1R Rh2 Be6 Bg2 f1Q Nf2 Nc6 b8R Nge7 g8N h3 g7 Ng6 Ne7 Rd1 b3 Nce5 Rc1 Ra6 Rc2 Nf4 Rb5 Bf7 Rc5 Qb5 Nc8+ Kd7 d6 Ke6 d7 Neg6 d5+ Ke5 Rh1 h2 Be1 Be7 d6+ Rd5 Bd2 Bg5 Be1 Qb4 Rb5 Kd4 e5 Ke3 Ra5 Qb5 e6 Rd4 e7 Rf8 Ng4+ Kd3 e8B f2 Ba8 f1Q Ne4 Qh3 Bc3 Rh8 Rf1 h1B Ngf2+ Ke3 Nc5 Be4 Rh1 Rd5 Kb1 a2+ Kb2 a1R Nb7 Re1 Ka3 Bd3 Rc1 Bb1 Rc2 Ba2 Rh2 Qdb6 d8Q Rf8 Qf6 Qd8 d7 Bh6 Qh4 Bg5 Ne4 Kd3 Rh1 Ng2 Rh2 Bd2 Rh1 N2f4 Rh2 Qg5 d8Q Rd7 Qc7 Qd8 Rh1 Qc6 Re5 Qb5 Qca5 Be3 Re2 Bd2 Nf2+ Kc2 Rh2 Kb1 Rh1 Be3 Rc2 Bd2 Qg5 Qg3 Rh8 Qh3 Qh4 Qe7+ Ncd6 Bc4 Bf7 Rb8 Be8 Qd8 Nc8 Bf7 Rc1+
bN1rR3/b2N2P1/2n3k1/B1PQQ3/1rq1b1B1/1rrQn3/1R1B2Rn/q1N3K1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 Kf7 Kf2 e5 g4 h5 b4 d5 c4 a5 f6 h4 f5 d3 b6 e4 b5 d2 b7 a4 b6 h3 Na3 h2 Rb1 d4 Be2 d3 Rb2 Nc6 b8N Rh5 b7 Rh4 c5 Nh6 Nc4 a3 Nb6 a2 N6d7 a1Q Kf1 e3 g6+ Kg8 g7 Kh7 g8R Bd6 g5 Ra3 f7 Rc3 f8B Rb4 f6 Ng4 Bg7 Kg6 f7 Rcb3 Qc2 d1N f8Q Bg3 Qc3 d2 Qf3 Be5 Rh8 Qg8 Qd5 Bg3 Bf3 e2+ Kg2 e1R Ne2 Be5 Rg1 Nde3+ Kh1 d1R Bd2 Bc7 Nc1 Bb6 Qcd4 Qe6 Re8 Ba7 Qd3+ Qe4 Bh6 Re2 Be1 Rc2 Rg2 Rcc3 Be2 Nge5 Bg4 Nf3 Nb6 Bf5 N6d7 Ng1 Bd2 Qc4 Bg7 Be4 Bf6 Rf1 Bd8 Rf8 Bb6 Nf3 Ba5 Kh7 g6+ Kg7 Re5 Rd8 Re8 Kh6 g7 Kg6 Rg1 Nc2 Kg2 h1B+ Kf2 Ne3 Rg2 Nh2 Kg1 Nf5 Na6 Ne3 b8Q Ne7 Qbe5 Nc6 Nab8 Nd4 Rf2 Bf5 Qg8 Ba8 Re2 Nc6 Rg2 Be4 Qgd5
3r3N/3BRPQQ/P2K2n1/B2B2kQ/4bn2/2q1br2/q1R4N/q2bbRnN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 b4 d6 b2 Kd5 h4 f6 Kg6 f7 b3 a5 c4 f5+ Kh7 f6 Kg6 d7 c3 a6 h3 Bd2 e4 Nf3 h2 Bb5 c2 Re1 c1N Ba5 h1B Nbd2 b1Q Nh2 e3+ Qf3 b2 Ne4 e2 Qh3 Bd6 f8Q Qb6 d8N Ra7 Nf7 Qc2 Bd7 b1Q Ke6 Qd2 d5 Q6b4 Ng3 Be5 d6 Be4 Nh1 Qbc3 Rf1 e1B Ra2 Ra8 Rc2 Nd3 Qe7 Qe2 Qf8 Rh4 Nh8+ Kh7 Rc1 Qeb2 Rc2 Bcb7 f7 Nc6 Be8 Bf4 d7 Bf3 d8R Rb8 Bd7 Bd1 Re8 Be3 Kd6 Q2a2 Re4 Qba1 Re8 Qg7 g6+ Kh6 g5+ Kh5 Re4 Qgc3 g7 Nge7 g8B Rd8 g6 Nd4 g7 Ne2 Bh7 Ng1 g8Q Bd5 Bg6+ Kg5 Qfg7 Rf4 Q8h7 Rf3 Re6 Bb7 Be4+ Ng6 Re7 Bd5 Re2 Nf4 Rc2 Bb3 Ba8 Bd5 Bc6 Be4 Ba8 Nd3 Bd5 Nf4 Q3h5+
8/1PBK1k1r/1Q2B2r/1r1b1P2/1R2nqN1/2b1bQqr/2bN2Q1/RRNn3B b - - 0 1 illegal: No possible last move
q3BN1Q/1nQ1R1Q1/2B1b2N/1rP1P2b/r3RK1n/1Nb3p1/3B2k1/1q2rn1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 b4 Ke4 h4 g5 e6 f5 e7 d5 e8B a5 c5 g4 h6 a4 h7 a3 b6 a2 h5 d3 b7 d4 h6 d2 b5 d3 b6 Bg7 Nh3 Be6 Nf4 Nc6 b8Q Nge7 b7 Na5 Ng6 Bc3 Nf8 Ng6 Qc7 Nh4 b8R Nb7 Bg2+ Ke3 Bgc6 Ra4 Rc8 Rg8 h8N f4+ Kh2 Kf2 e4 f3 e5 Qd5 h7 Qd8 Qb3 d1R Nf7 d2 h8Q Re1 Nh6 d1B Nd2 Rg7 Rb1 a1Q Qb2 Rd7 Nb3+ Rd2 Qa3 Rb2 Bd2 Qa2 Rc1 Qb1 Qcg7 Be2 Rc7 Qa8 Re7 Bd1 Qb4 Be2 Qb6 Bd1 Na5 Rb5 Qc7 Be2 Nb3 Bd1 Nf5 g3+ Kh3 Bb4 Kg4 Kg2 Rc4 Bc3 Re4 f2+ Kg5 f1N Nh6 Bh5 Kf4
3NBrN1/5nQ1/2RN1q1R/P2Rrq2/n2b3k/K1B1Pp1b/1nrQQ1b1/1B6 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Ke7 Kd2 g5 Kc2 b5 Kb2 c5 h4 f5 a4 b3 a5 b4 h6 f4 h5 f3 d6+ Kf7 e6+ Kf6 h7 c4 h6 g4 e3 Kg5 e7 g3 e8B g2 d7 Bc5 d5 Qe7 d8R Bd4+ Nc3 Nd7 d6 Nc5 d7 Qf6 Nh3+ Kh4 Qe2 g1R Bd2 Rg5 Rg1 Re5 Rc1 Ra7 Rc2 Rc7 Nf2 Ba6 Ng4 Na4+ Ka1 b2+ Ka2 b3+ Ka3 b1B Ne4 c3 Nd6 b2 Rc1 c2 Bc3 Qe7 Nf6 Ba2 Qd2 b1Q Rg6 Be6 Bd3 Bh3 Be4 Baf1 Qe2 Qf7 Bf5 Ne7 Ng8 Qf6 Bb4 Bc3 Qd2 Bd4 Rc8 Rcc5 d8N Kh5 Rb8 Bg4 Rb5 Rc7 Rd5 Rc8 Be4 Nf5 Ne7 Rg8 Qd3 Rc7 h8Q Rf8 Ng8 Rc5 Qh7 Rc4 Qc7 Bg2 Qe2 Kh4 Qc6 Rc5 h7 B4h3 h8Q+ Nh6 Qg7 Nf7 Qb6 Rc6 Qc5 Rc7 Qc3 Rc5 Qcd2 Rc6 Rd1 c1N Rh1 Nd3 Rc1 Ndb2 Rc3 Qc1 Bb1 Qc2 Rc4 Qcf5 Rc3 Rb6 Rc7 Rc6 Rc8 Rc2 Bc3 Qe7 Rc6 Qef6 Rh6+
3q2n1/1N1P4/4PbB1/Rr1Qr1p1/N1bB2Nq/k1Q4n/r2n2K1/RQ2qRB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 Kd6 d4 f5 b4 a5 h4 g5 h6 c5 h5 a4 b6 c4 b5 f3 b7 c3 b6 a3 e5+ Ke7 d6+ Kd7 d5 a2 h7 f4 h6 c2 Be3 c1N Bd3 Be7 Nc3 Ra5 Nh3 Bf6 Na4 Rb5 Qc2 Nb3 Bg6 Nd2 Rhf1 Nc6 b8Q Nd4 b7 Ne2 Qa8 Ng1 b8Q Ba6 Bc5 Ra5 Qbb1 Bc4 Bd4 Rb5 Qa5 Ne7 Be3 Re8 h8B Ng8 h7 Re7 Bg7 Re6 h8R Re8 Ke1 Re6 Nf2 Nh3 Ng4 f2+ Kd1 f3 Rh4 Kc8 d7+ Kb7 d6 Kc6 Bb6 Rb3 Qa8+ Kb5 Qd5+ Kb4 Bh8 Ka3 Bd4 Qb6 d8N Rb5 Nb7 Qd8 d7 Re8 Re1 f1Q Bg1 Qf2 Rf1 Qh2 Ke1 Re7 Rh7 Re8 Re7 Qf4 Re6 Qh2 Ra6 f2+ Kd1 Qg3 Ra5 Qh4 Bg7 Bb3 Ke2 Bc4+ Ke3 Re6 Re1 f1Q Bh8 Rc6 e6 Rcc5 Rc1 Ne4 Bg7 Qfe1+ Kf3 Nd2+ Kg2 Be7 Bc3 Bf6 Qc6 Re5 Qd5 Qe3 Rf1 Qee1 Qbd1 Be2 Bcd4 Bc4 Rc1 a1R Rb1 Ra2 Ra1 Qh8 Qdb1 Qhh4 Qc3+
k3br2/q1BPnN1n/3K3b/1Q1P1b2/1RRB4/4NN1b/2p2Qr1/Q2B1nRb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Ke5 Kc7 e4 Kb7 g4 h5 d4 f5 b4 f3 g6 f4 d6 h4 g7 h3 b6 a4 b5 h2 g5 f2 d7 a3 g6 a2 Bb2 c4 Na3 c3 Nf3 c2 Be2 f1B Rg1 h1B Nc4 Ne7 g8N Qe8 g7 Qh5+ Kd6 Ra4 e5 Qg4 e6 Bfg2 Ne3 Bh3 Nh6 Ka8 g8Q Qg7 Qf7 Qh7 Rb1 a1N Qc1 Qg7 Bd1 Nb3 Ba1 Nd2 Rb4 Ra3 Rc4 Nf1 Qf6 Qh7 Nf7 Bh6 Qf5 Rf8 b7+ Ka7 Qb2 Rd3 Qc1 Rd2 Bc3 Rg2 Qa1+ Na6 b8B+ Ka8 b6 Qg7 Nd2 f3 Bc7 f2 Nf3 Qh7 Qc5 Bf5 Qb5 Bb7 Bb2 Bc6 Qc5 Ba4 Qb5 Nb4 b7+ Ka7 b8R Nbd5 Rb6 Nf6 Qc5 Ka8 Rbb4 Nd2 Qb5 f1B Qc5 Bh3 Qf5 Bd3 Qf4 Nf1 Qh4 Qe4 Qf2 Qb7 Bc3 Bg6 Bb2 Qa7 d5 Nh7 Bh8 Bb5 Bd4 Ng8 e7 Bgf5 Rc3 Bbd3 Rcc4 Bg6 Bf6 Bdf5 Bd4 Rb8 e8Q Ne7 Qh8 Rf8 Qa5 Bh5 Qb5 Bhg6 Bc5 Bh5 Qa1 Bhg6 Bd4 Bh5 Nh8 Be8 Nf7
R1n2NQr/1bP1P3/N2r3N/r2B1qb1/Q1KbB1R1/2p3b1/1B4nk/R4nQ1 b - - 0 1 illegal: No proof kernel
1Q4n1/p3q1Rn/2Q4b/kN2Pb1r/N2r1r2/P1KRq1B1/1BN1BQ2/1r2r2R b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxc5 Ng8 e4 Kd7 h4 Kc7 d4 g5 Kd2 f5 c6 Kb6 d6 f3 e5 f2 d5 f4 h6 f3 c7 g4 d7 g3 h7 g2 a3 Bb4+ Nc3 Na6 h5 Nc5 d6 Na4 h6 Qf8 d8R Qe7 d7 Ka5 Qe1 b5 Bb2 Rb8 Be2 f1R Qf2 Nc5 Kc2 Ra8 Na4 Bd2 Rd1 Bg5 Rd3 Ne6 Kc3 Re1 Rf8 Bf4 d8B Ng5 Rf7 Bf5 Rg7 Rb8 c8N+ Rb6 Nd6 b4+ Kc2 b3+ Kc3 Bc1 Nb5 Be3 Qg3 f2 Nf3 f1R Qf2 g1Q Nfd4 Qg3 Nc2 Qh3 Qg2 Rf4 Qf2 Bc1 Qf1 Qe3 Qf2 Qe6 Be7 Rd6 Bf6 Rdd4 Be7 Nh3 Bh4 Qe7 Bg3 Ng5 Ba1 b2 Nb4 b1R Rg6 Qf8 Nc2 Qe4 Bb2 Qf7 Rf3 Rh4 Rd3 Bg4 Rg7 Qe7 Qf3 Bf4 Qf2 Qe3 Rf7 Nf6 Rg7 Rf8 h8Q Rh5 Qh7 Ng8 Qg6 Bh3 Qe8 Be6 Qb8 Rf5 h7 Bd7 h8Q Nh7 Rf7 Bh6 Qf6 Rff4 Qc6 Bf5 Rg7
3B2N1/2Q3KB/1n1rq1nR/Rb1kr3/P3Q1b1/2qrb2P/2bp2R1/3QN1BN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 b5 Kd4 d5 Ke5 g5 c4 b3 f4 b2 h6 g4 c6 b4 f6 b3 c5 e6 c7 g3 h3 d4 c6 g2 h7 d3 f5 Bg7 Bg5 d2 Nc3 b1B Bd3 b2 Nce2 Bf8 Rh2 Ra3 Ng3 Qe8 Nh1 Bc2 Nf3 b1B Ne1 g1Q Rg2 Qe3+ Be4 Ba6 c8N Ne7 c7 Rd3 a3 Rg8 h8R Bb5 Rh6 Rg6 Bh4 Ba2 Bf2 Bd5 Bg1 Bdc6 Ra2 Bd7 Ra1 Nd5 Ra2 Bc5 Ne7 Nf4 c8Q Qg3 Qc7 Be3 a4 Bc8 Rb2 Qc6 Rb4 Qc3+ Rd4 Qg4 Ng8+ Nd7+ Kd6 Kf8 f7 Nb6 Rd5 Kg7 Ke7 e5 Rc5 Rgd6 Rd5 Bba6 Ra5 Ng6+ Ke8 Qe2 Ne7 Kf6 f8B R3d5 Bd3 e4 Ng8+ Ke5 Kf7 Bb5 f6 Bg4 Be7 Rd4 Kg7 Kd5 Nf3 Qe1 f7 Qe2 f8Q Qe1 Bf1 Qe2 Qfd8 Qec4 Bf6 Rd3 Qce7 Qc8 Ne1 Qe6 Qdc7 Bg5 Qc1 e3 Qd1 e2 Qe8 Qb4 Bd8 Be3 Nf3 e1R Qee7 Re2 Ne1 Bc5 Qh4 Re5 Qhe7 Qc3 Qe8 Rde3 Bd3 Bd4 Bf5 Rd3 Qee7 Be3 Qe8 Nh4 Bh7 Ng6 Qee7 Rc6 Qb4 Rd6 Qe4+
1q1rb1b1/1Qnn2N1/1R5R/kN2BBNn/p4R1b/P3Pr1q/3K1b2/QB4Q1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxc5 Ng8 h4 Kd7 d4 Kc7 e3 a5 a3 b5 h6 g5 h7 f5 c6 Kb6 h5 b4 c7 f3 h6 f4 d6 b3 d7 g4 d5 b2 d6 f2+ Ke2 g3 Rh4 f3+ Kd2 g2 Rf4 a4 Nh3 g1B Bd3 f1Q Nc3 b1B Ng5 f2 Bb2 Ba2 Nb5 Nf6 Bb1 Qh3 Be5 Bg8 Qb3 Bb7 c8B Ne8 Qd1 Qc7 d8N Nd7 Nde6 Bc6 Ng7 Qb8 Ra2 Ra5 Rb2 Nc7 Rb3 Be7 Qg4 Nf6 Bcf5 Be8 d7 Ra8 d8R Ka5 Rd6 Nd7 Qf3 Ra6 Qb7 Rc6 Re6 Rc1 Rb6 Rf1 Rc3 Bd8 Rcc6 Bf6 Ne4 Bh4 Ng5 Bgf7 Rg6 Rf8 h8Q Bg8 h7 Rd1+ Kc3 f1N Rh6 Ng3 Kc2 Rf1 Kc3 Nh5 Kd2 Bd5 Qg8 Rf3 h8Q Bgf2 Qf7 Bb3 Qc4 Ba2 Qf1 Bg8 Qg1 Bef7 Qh7 Rd8 Qg6 Be8 Qd6 Qf1 Qd4 Qh3 Qa1
Br2n1R1/2Q5/4R1bK/Q2PbBNN/1n1b1qr1/rr1pQ1q1/R2P1B2/kN6 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 axb5 f5 exf5 d4 Nc3 Nh6 Nb1 Qd5 cxd5 Ng8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kb4 g4 h5 f4 e5 f6 c5 b3 a5 f5 e4 f7 h3 b6 a4 f6 h4 b7 e3 Kg6 c4 g5 h2 Nf3 a3 Bb2 h3 Ra2 c3 Qe1 c2 Ba6 d3 Bd4 e2 Bf2 Bc5 f8N c1Q f7 Bd4 Nh7 Qc4 f8R Nc6 Nf6 Bf5+ Kg7 Rh4 g6 Rb8 Ng5 Rg4 Re8 Be4 Rg1 h1R Re6 h2 Kh7 Be5 Nh5 Nf6+ Kh6 Ne8 g7 Bg6 g8B Qf4 Bh7 Bd4 Rg3 Be5 Qg1 e1Q Bb5 Qee3 Qe1 Qef3 Qe3 Rd1 Rg2 h1R Rg1 Q3g3 Ba4 Bf7 Bf5 Bg6 Bb5 Rc1 Ba6 Rc3 Bb5 Rd8 b8Q Rhh4 Qc7 Rb8 Ba6 Bd4 Bb7 Be5 Rb2 a2 Ba8 a1B Ra2 Rh1 Rg2 Rhc1 Qca7 R1c2 Rg1 Rb2 Qc7 Rc5 Rg2 Ra5 Rg1 Ra3 Qca7 Kb5 b4 Kc4 b5 Kb3 b6 Nb4 b7 Kc2 Rg2 Kc1 Qa4 Rbb3 Qa5 Bad4 Ra1 Rd8 b8Q Kb2 Qbc7 Rb8 Rg1 Bf7 Rc1 Bg6 Rcc6 Ng7 Rcd6 Ne8 Rd8 Nd6 Rh8 Ne8 Rg8 Ra2 Nc3 Ra4 Rc1 Ra2 Rc2+ Ka1 Nb1 Raa3 Ra2+
1k2b1n1/3N1N2/1r3qr1/Q1RpRRP1/KB1Q1P1N/5B1n/2nQ3q/2bb1Bn1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 h5 Kc2 e5 Kb3 h4 f4 e4 g4 d6 c5 Kd7 g6 Kc7 f6 h3 c6 d3 g7 e3 f7 e2 g5 e1N Ka4 d2 b4 h2 Nc3 Bb7 b6+ Kc8 b5 Qc7 Nf3 Nf6 g8B Nbd7 Ba3 Ne5 Nh4 Rb8 Ne4 Nc2 Bb4 Rh6 Qc1 d1B Qd2 Bg7 f8N Rg6 Bd5 Ng8 Rg1 Qe7 c7 h1N Rg3 Qd7 Re3 Bc6 Rb1 Kb7 c8R Qh3 Re2 Ka8 b7+ Ka7 Re3 Be8 Rc5 Nf2 Bc6 Bf6 Rc1 Nf3 Rf5 Bh8 Re2 Qh2 b6+ Ka6 Qd4 Ng1 Qd2 Bb2 Qd4 Rc8 b8Q Nfh3 Qc7 Rb8 b7 Ba3 Qd2 Ka7 Qg7 Ra8 Qgd4+ Kb8 Nf6 Bb2 Ree5 Ra6 Ng4 Rb6 Nh6 Ba3 Nf7 Bb2 Bfb5 Ba3 Bf3 d5 Ra1 Bb2 Ra3 Bc1 Rc3 Rbd6 Rc5 Rde6 Kb3 Rb6 Bf1 a4+ Kc3 a3 Kb3 Rb5 Ka4 a2 Qb2 a1Q+ Qa2 Ka7 b8Q+ Ka6 Qd6+ Kb7 Qb6+ Ka8 Qa5+ Kb8 Qa3 Qd4 Qb2 Qc3 Re3 Qg7 Qbd4 Qf6 Ree5 Rb6+ Nd7+
7k/1r1NB1q1/4p2b/1bq1BP1P/1n3RQ1/4RB1R/bnb1rQNK/2Q2N1n b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 b4 g5 f4 Kg7 Kf2 a5 Kg2 d5 c4 g4 b6 a4 b7 d3 b5 a3 c5 d4 b6 d2 c6 a2 c7 d3 Rh3 e6 Ba3 g3 Qf3 d1B Qf2 d2 Nf3 Nd7 b8Q Bc2 b7 d1B Nbd2 Qe7 Ne1 Qc5 Be2 Nb6 Bf3 Nh6 Nf1 Bd7 c8Q Rh7 f6+ Kh8 f7 Ng4 h6 Bb5 h5 Nc4 f5 Bb3 Qf4 Nb2 b8R Bdc2 Qc6 Rg7 h7 Ra4 Ra8 Re4 Ra4 Re2 Re4 B3c4 Re3 B4b3 Rd1 a1N Rd4 Ba2 Kg1 g2 Rb4 Nf6 Kh2 Ne4 Qg4 Ng3 Rf4 Nh1 Qc7 Be4 Qc6 Nc2 Qc8 Nb4 Qc6 Be7 f8N Bg5 Nd7 Bh6 Qc7 Qd4 Qc1 Bc2 Nb6 Rb7 Nd7 Na6 Bf8 Nb4 Be7 Qc5 Bg5 Kg7 h8B+ Kh7 Be5 Kg8 Bd6 Kh8 Bge7 Qd4 Rh4 Qg7 Be5 g1Q+ Kh3 Ba6 Qfg2 Bd5 Rb3 Qe3 Kh2 Bad3 Rh3 Qc5 Qf2 Bb5 Re3 Ba2 Ng2
4R3/4bRq1/n1Pr1qnn/BB1bP2r/2RN2p1/1QQnk3/2K1NN2/2Q2qB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 e4 Ke6 b4 d5 h4 f5 c4 a5 b6 g5 h6 g4 h7 d3 b7 f4 h5 f3 b5 d4 h6 a4 b6 a3 c5 f2 Ne2 a2 Nbc3 Nc6 b8N Qf6 b7 Nb4 Nc6 Na6 b8Q Ne7 Qb7 Ng6 Qbb3+ Kd7 Rb1 a1Q e6+ Kc7 e7 Bb7 e8R Rd8 Rb2 Be7 Rc2 Rd6 Ba3 Qb2 Qc1 Kd7 Kd1 d2 Bb4 Ba8 Rh5 Qa1 Rd5 Ke6 Ba5 Qg7 Re5+ Kf6 Re6+ Kg5 Rf6 Bb7 Rf7 Qf6 Ng1 Kf4 Bb5 Ke3 Nh3 f1N Nf2 Ng3 Ne2+ Qc3 Nd8 Nf5 Ne6 Bd5 c6 Qg7 Qa4 Qa1 Rc4 Qf6 Kc2 d3+ Kb3 Qae5 N6d4 Qg7 Kc3 Qe6 Qb3 Qef6 Qg1 d1Q Kb2 Rg8 h8Q Qf1 h7 Nh6 Kc3 d2 Qh1 d1N+ Kc2+ Nc3 Qg1 Nc5 Qh1 Nd3 Qg1 Na4 Qh1 Qf8 Qg7 Nc5 h8B Qh3 Qe1 Na6 Qec3 Qf1 Qh7 Nf5 Qh1 Nh6 Bg7 Rh8 e5 Qg8 Bf8 Qgg7 Qg1 Bd8 Be7 Qf3 Bh4 Qff6 Bg3 Be7 Bh2 Ng8 Qh1 Rh5 Bg1 Nh6 Bh2 Qh3 Qhb1 Qg2 Bg1 Qf1 Qc1+
1K6/1nBQrb1P/N1Nq1RQQ/4Np1B/1R1q3b/2rq3R/n3nP1n/B6k b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 Kd2 Ke7 Ke3 Ke6 Kf4 d5 e4 a5 h4 f5 c4 a4 h5 d4 h6 a3 b6 d3 c6 g6 h7 a2 c5 d2 c7 g3 b7 g2 c6 Ra5 Be2 Bb4 Nc3 Bc5 Rh3 Nd7 b8B Nh6 Nf3 g1Q Bb2 Re8 Nb5 Ra3 Rb1 a1Q Qc1 d1N Na7 Rc3 Qe3 Bb7 c8R Qf1 c7 Re7 Nc6 Ng4 Qd2 Qa7 Ba1 Nh2 Rb4 Ba6 Qe3 Bc4 Qc1 Qa6 Qe3 Qh8 Rf8 Qa3 c8Q g5+ Kg3 g4 Kf4 g3 Bc7 g2 Qe8 g1N Qg6+ Qf6 Qc1 Bd6 Qd2 Nc5 Qh6 Qg6 Rf6+ Kd7 Qd5 Qg7 Qf7 Nb7 Qfg6 Nb2 Bd1 Bf7 Be2 Na4 Bd1 Bc5 e6+ Ke8 Ke5 Ne2 Kd5 Be3 e5 Bg5 Ne1 Bh4 Nd3 Nc1 Bh5 Na2 Nb2 Qb1 Nc4 Qf1 Nb8 Qd3+ Kc6 Nac5 Kb6 Na4+ Ka7 Qh8 Nc6 Qg7 Rb1 Qad6 Kb8 Kf8 Rb4 Ke8 Qg1 Qg4 Qg3 Qgd4 Qgg7 Rc1 Qgg6 N4c3 Ne3 Ne2 Ng4 Rd7 e7 Rc5 Qf4 Rc3 Qfh6 Q4d5 Qd2 Q6e6 Bd8 Rc7 Qdh6 Kd7 e8N Q5d4 Na7 R7c5 Bb6 Qed6+ Nc7 Ke7 e6 Re5 Rf3 Q6d5 Na6 Kd6 e7+ Qe6 e8Q Kd5 Rh3 Ke4 Rg3 Qd6+ Bc7 Re6 Qd7 Re7 Rg2 Kf3 Rg1 Nf1 Rh1 Kg2 Rh3 Nh2 Nc6 Kh1 Nge5
N2Knr2/2QR2Pn/pq1q4/1q4QR/2Bb1Bq1/2R2NPr/4brNk/QB6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 c5 b4 f6 g6 f3 g3 a6 g7 f2 b6 c4 b7 c3 b5 h4 b6 c2 Nd2 h3 Nc4+ Ke7 d6+ Ke6 d5+ Kd7 Kf5 h2 e4 Qc7 e5 Rh3 Bf4 c1Q Ra3 Qb2 Rc3 Qe2 Kg6 f5 Kf7 Qg4 Ne3 Nf6 Ng2 Nh7 Bc4 f1R Nf3 Rf2 Qc1 Be7 Qa1 Bf6 e6+ Kd8+ e7+ Kd7 Rb1 h1Q Rb5 Bd4 Ra5 Qb1 e8B+ Kd8+ d7 Qd6 Kg8 Ke7 d8R Kf6 Bg6 Nd7 b8Q Qb2 b7 Qbb6 Qc7 Rb8 Rb5 Ra8 b8N Bb7 Bd2 f4 Bb1 Bc6 Rc5 Ba4 Bc1 Bd1 Rb5 Be2 Ra5 Nc5 Rd7 Ne4 Rb5 Kf5 Kf7 Qbc5 Ke8 Qcb6 Ng1 Kg5 Kd8 Nef6 Rc5 Ne8 Ra5 Qh5 Nf3+ Kg4 Bd2 Rh4 Bc1 Kh3 Rb5 Qg4 Ra5 Qdc5 d6 Qcb4 Rh5 Qa3 Nfe1 f3 Bf4 Kh2 Bd2 Rf1 Bf4 f2 Nf3+ Kh1 Rf7 Rh3 d7 Qad6 Kc8 Qg5 d8Q Qgg6 Rd7 Qg4 Ng1 Kh2 Qg5 Re1 Kd8 f1Q Bd2 Qff5 Bf4 Rf1 Nf3+ Kh1 Bd2 Qfb5 Bc1 Rf2 Bf4 Ra7 Nc6 Rb7 Ne7 Rb8+ Nc8 Qb6c6 Qca5 Rb7 Nb6 Ra7 Na8 Qcc5 Ng1 Kh2 Qb6 Rc7 Qc6 Qcb6 Nf3+ Kh1 Qb7 Rc5+ Qc7 Rf5 Nfh4 Kh2 Rf3 Rf7 Rc3 Rf8 Nf3+
n3qN1R/1Q3P2/K1b1q2N/2r1R3/PQBb3p/R2nQ2b/kBBbN3/3r3q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 e5 Kc4 h5 Kb5 c5 a4 c4 f4 e4 d4 e3 g4 h4 d6 c3 g6+ Kf6 d5 b3 d7 b2 g5+ Ke7 f6+ Kd6 f5 c2 f7 b6 f6 e2 g7 e1B g6 Qe8 Qf3 Bd2 Ne2 Ne7 g8Q Bg7 f8N Rh5 f7 Nec6 d8R+ Nd7 Nbc3 b1Q+ Bb2 c1Q Nd4 Nb4 Nce2 Nd3 Rh3 Qa2 Qe3 Be5 g7 Bf6 Bg2 Qh1 Re1 Bb7 Qh8 Rc8 g8B Bc6+ Ka6 Kc5 d6 Kc4 Qh7 b5 Nf5 Kb3 Bf1 b4 Nh6 Rc5 Qhe4 Bd4 Bh7 Nb6 d7 Na8 Q4f4 Rc1 Qc7 Rd1 Qb7 Rc7 Rb8 Rc8 d8Q Rc7 Qd6 Rc8 Bc3 Ka3 Qdf4 Qae6 Bb2+ Ka2 Qd6 b3 Qdb4 Nf2 Bc2 Nd3 Ba3 b2 Rg3 b1B Bb2 Rd8 Rg8 Rd5 Rh8 Rb5 Bh3 Qb3 Be6 Rc5 Bc4 Nf2 Bh7 Bf5 Bg6 Bg4 Bc2 Be6 Rg1 Bf5 Rg5 Bh3 Re5 Nd3 Q4b6 Qe6 Bd5 Rc1 Qd7 Qe7 Qa5 Qf3 Rb6 Qf1 Qb7 Rd1 Be6 Qd5 Rb3 Qe8 Qab4 Qd6 Bd5 Qde6 Bc4 Qh1 Ra3#
1QR1r2n/3NPRN1/2QBnb1k/B3b3/3Q1Prn/5p1K/1q1R1b2/1Bq1N2b b - - 0 1 illegal: No proof kernel
Q1q1b1NR/1P1p3n/1nn3n1/3QbQ2/1BB4q/2NKb2P/1N3Rrr/2BRk3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 b4 Ke5 f4+ Ke4 h6 g5 b6 e5 f6 a5 b7 a4 h7 g4 f5 g3 f7 d3 b5 g2 f6 a3 c5 a2 c6 Ne7 b6 Ng6 c7 Bh6+ Kc3 d2 f8B Ke3 f7 Kf2 Qg4 d1N+ Kc4 e4 Nc3 e3 Na4 e2 Qd4+ Be3 Qd5 e1Q Nb2 Nc6 b8Q Nc3 Kd3 Na4 Ne2 g1N Nc3 Nf3 Bb4 Bb7 c8N Ng5 Ne7 Qc8 Ng8 Ra5 Rb1 a1B Qa8 Rb5 Rg1 Ba6 b7 Nb6 Rg4 Ra5+ Rc4 Ra2 Be2 Qh1 f8Q+ Ke1 Qff5 Bb5 Bf1 Ba4 Rd4 Bd1 Rf4 Bg4 Rf2 Bh5 Nf6 Rg8 h8R Rg7 Ng8 Nh7 Nba4 Rc2 Rb2 Re2 Rd2 Bb2 Nb1 Bc3 Nb2 Be5 Rf4 Rf2 h3 Rh2 Nc3 Qg1 Rdf2 Qg5 Rd2 Qh4 Be2 Nge7 Rf2 Be8 Bd1 Rg1 Bb3 Ng6 Bc4 Rgg2 Rd1#
1QBRnBrB/2b2NqP/6bN/2r2p2/2r2n1K/NP1Q3n/k2Q2R1/2n2Rr1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 h4 Kd6 d4 g5 e4 a5 h6 c5 h7 a4 h5 f3 Kg3 a3 b6 a2 b7 f2 h6 c4 b3 g4 Bg5 c3 Bb5 f1R Ba6 c2 Nh3 c1N Kh4 g3 Nf2 g2 Na3 g1N Rh2 Qf6 Qd2 Qg7 Ng4 Ne7 Rg2 Rg8 h8B Rf4 h7 Nh3 Bh6 Nd7 b8R Bb7 Rd8 Rc8 Rb1 a1R e5+ Kc7 d6+ Kc6 d5+ Kc5 e6 Nf6 d7 Ne8 d6 Nd5 e7 Rc4 Qd3 Ndf4 Qd2 Bc6 Qd3 Rc7 Bc8 Be4 Qd2 Bg6 Qd3 Nce2 Rf1 f5 Qd2 Nc1 Qd3 Nf6 e8Q Kb4 Qee3 Ne8 Qed2+ Qc3 B6g7 R7c5 Nh6 Be7+ Rg5 Bf6 Bf8 Be5 Rg2 Ng7 Re8 Rb1 d8Q Ra1 d7 Bc7 Re6 Ne8 Rd6 Rb1 Qg5 Ra1 d8N Rb1 Ndf7 Ra1 Qd1 Qg7 Rd8 Rb1 Qd6 Kc3 Qb6 Ra1 Qb8 Rb1 Rg4 Kb2 Qd3 Ka2 Rg2+ Nce2 Rf3 Rg1 Nc2 Nc1 Rf1 Nfe2+ Qf4 Rc3 Qf2 Nef4 Qfd2 R3c4 Na3+
N3nQ1N/4bBqQ/5R2/n1k1p1rq/K1N1R1q1/BQRb2b1/b2PP3/4B1b1 b - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 a4 a5 h3 b5 axb5 Ra6 h4 Rg6 Nh3 fxg4 Ng1 g3 Ra3 g4 Ra1 Rg5 hxg5 Be6 Qc2 Bd7 Qd1 Bc8 b4 Kd7 f4 Kd6 b6 e5 b7 h5 b5 c5 b6 a4 f5 a3 f6 g2 g6 a2 g7 g3 f7 c4 Qb3 c3 Kd1 h4 Kc2 h3 Ba3+ Kd7 d6 Kc6 d7 h2 Nf3 g1B Bh3 g2 Nh4 Rh5 Ng6 Bgc5 Nh8 g1B Be6 Qe8 d8B Nf6 g8Q Rg5 Qh7 Bfe7 f8Q Qh5 Bf7 Bgf2 Re1 h1B Rf1 Bg3 Rf2 Ne8 Rf6+ Bed6 Be7 Bg1 Bd8 Be6 Be7 Na6 b8R Nc5 b7 Bf3 Bd8 Be7 Rc8+ Kd6 b8N Be4+ Kd1 Qg4 Na6 Bd3 Nc7 c2+ Kc1 Kc6 Kb2 Nb7 Kc3 Na5 Na8+ Kd7 Rc5 Kd6 Rc4+ Kd5 Re4+ Kc6 Bb6 Qh5 Bbc5 c1Q+ Kb4 Qc2 Ka4 Qc4+ Bab4 Kd5 Na3 Kc6 Rd1 a1Q Rc1 Qad4 Rc2 Qd7 Rc3 Qcd4 Nc4 Qc7 Rh4 Qdg4 Bf2 Kd5 Be1 Kd4 Ncb6 Bec4 Ba3 Bd5 Qb2 Ba2 Nc4 Qa7 Qb3 Qb7 Bb2 Kc5 Bc1 Qbe4 Bb2 Qeg6 Bc1 Qg7 Bb2 Qf3 Re4 Qfg4 Ba3#
2BbQqR1/1NQ3P1/1Bb1Qk1N/n3pb1K/2B1Rb2/1n2P1N1/1bb5/4r1qR b - - 0 1 legal: proof: c4 b5 g4 a5 h4 d5 cxd5 g5 f4 gxf4 a4 Nf6 axb5 Rg8 g5 Rh8 h5 Ra6 Kf2 Ng8 Ke1 Rg6 hxg6 Bh6 Kf2 Bg7 Ke1 Bf8 Kf2 h5 Kf3 f5 b4 e5 d4 Ke7 g7 c5 d6+ Kf7 d7 a4 b6 c4 b7 c3 d5 h4 d6 c2 b5 h3 g6+ Kf6 b6 a3 Nd2 h2 Nh3 a2 Ng5 Be7 Bh3 Na6 b8R Qf8 d8Q Nc5 d7 Nb3 Qc7 Bd8 b7 Ne7 g8B Nc6 g7 Nca5 Nf1 Rh4 Bd2 c1B Nf7 Rh8 Rb1 a1B Be3 Bab2 Qd5 Rh4 Nh6 Rh5 Kf2 f3 Kg3 f4+ Kg4 f2 Bb6 f3 Ng3 Bf4 e3 f1Q Ra8 f2 b8Q Qg2 Ra1 f1B Ra4 Qf2 Re4 Bd3 Be6 Bc2 Qdc6 Ke7 Bc4 Qg1 Qd5 Rf5 Kh4 Rf6 Kh5 Rd6 Qdc6 Rd1 Qd5 Kf6 Bg4 Be7 d8N Bf5 Nb7 Re1 Qe8 Bd8 Bh3 Bh7 Be6 Bf5 Bc8 Qf1 Rg1 h1B Qg8 Bg2 Rh1 Qg1 Rd4 Nc5 Bd7 Bc6 Re4 Be7 Qeb8 Ncb3 Qd5 Qh8 Qbg8 Rc1 Re8 Rf1 Bc8 Re1 Qdd7 Bd8 Qgd5 Qh7 Rh8 Qg8 Qe8 Qf8 Rg8 Bh3 Qdd7 Bf5 Qde6+
1r1k4/1bRNp3/B1NR2Q1/2QPb2b/1N1R1P2/K3n2n/nBq4p/rr1B1Q2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 c5 g4 a5 d4 h5 Kd2 a4 Kc2 c4 Kb2 c3+ Ka3 c2 f4 h3 d6 h2 f6 h4 g5 h3 f7+ Kd7 b6 Ra6 g6 Ra8 b7 Rh4 g7 Rh6 b5 Ra7 b6 Rf6 Ba6 Re6 Nf3 Nh6 g8B Qc7 Qf1 Ng4 Bb2 c1N Nc3 Nf2 Na2 Re1 Nb4 Na2 Rd1 Kd8 d7 Qc2 Ne5 Nc6 b8Q Ra8 b7 Na5 Qd6 Bg7 f8N Rb8 Bb3 Bh8 Rg1 h1B d5 h2 Rd4 Rb1 Qc5 Bf3 Rg2 Bh5 Nec6+ Kc7 d8R Nh3 Rd6 Bf6 Nd7 Be5 Na7+ Kd8 Rgd2 Nc6 Rc4 Nd4 Rc3 Nf5 Rd4 Ra8 b8Q Ne3 Qbb5 Bb7 Qbd3 Rb8 Qg6 Qc1 Bd1 Qc2 Qcb5 Nc1 Rc7 Qd2 Na2 Qc2 Kb4 a3 Qa5 Ra8 Qc5 Rb8 Nc3 a2 Ka3 a1R+ Na2 Ne2 Qa5 Nc3 Qc5 Qc1 Kb3 Qd2 Nb4 Na2 Ka3 Qc2 Nac6+
2b1rb2/rp2nK1b/1Q3p1R/R2P1BR1/3r1Q1N/5Pq1/N2n4/B2nQBNk b - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 h5 b4 axb4 g4 e5 gxh5 Qd6 dxe5 Qd8 Kd2 Kd7 Ke3 g5 Kd4 c6 a4 g4 e4 g3 h4 g2 e6+ Kd6 a5 b3 e5+ Kc7 a6 b2 h6 Qe7 h5 Qd8 a7 Qh4+ Qg4 Bg7 h7 Nd7 f3 Ne7 h6 Rg8 h8N Bf8 h7 Nf6 Nc3 b1B Ng6 Ne4 h8R Qg3 Ra5 Nf2 R1h5 Nd1 Nh4 Bh7 Bb2 f6 Na2 Kb6 Rg5 c5+ Kc4 Kc7 Ba1 Kb6 Qf4 Kc7 Kb5 c4 Kc5 c3 Ra6 c2 Ra5 Nf5+ e7 c1N Nh3 g1R e6+ Nd6 e8B Nb3+ Kb4 Rg2 e7 Nd2 Kc5 Re2 Bh5 Re4 e8Q Rd4 Qe1 Kd7 Bg6 Nf5+ Kb5 Ne7 Kc5 Bh6 Ng1 Re8 Qfe3 Bf8 Bf5+ Kc7 Qb3 Bg6 Rh6 Bh7 Kb5 Kd6 Qc4 Ne3 Kb4 Ke5 Kc5 Kf4 Kd6 Nd1 Qc5 Qg2 Qb6 Qg4 Bd7 Qg2 Ke6 Qg3 Kf7 Nb1 Qeb4 Nd2 Bf5 Ke3 Q4d6 Kf2 Qe5 Qg4 Qee6 Kg3 Qe1+ Kh2 Bg2 Qg3 Bf1 Rb8 a8Q Kh1 Qaa7 Ra8 Qb8 Ra7 Qf4
B1q2knR/2N2r1n/1bb4r/R1pqN3/1rQN1Q2/P3b2p/PB2Q3/B3KR2 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 d5 cxd5 gxh4 Na3 a4 Nb1 a3 bxa3 Bh6 Ne2 Bg7 Ng1 Bf8 d4 b5 g4 h5 f4 e5 f6 c5 d6 b4 g5 h3 d7+ Kf7 d5 e4 f5 e3 d6 h2 Nf3 e2 Bg2 h4 Nc3 b3 Nd5 b2 Nd4 b1R Bb2 Qe7 d8B Qb7 g6+ Ke8 g7 Ra6 d7+ Kf7 Nc7 Ra7 Bc6 Qa6 Ba8 Rh6 Be7 Qb7 d8R Nd7 Bd6 Be7 Be5 Nf8 Rd6 Bd8 Ra6 Bd7 Ra5 Nh7 Rf1 Rc1 Rb1 h1Q Ba1 Qc8 Rb8 h3 Nc6 Qd5 Nb5 Rc4 Beb2 Ne7 Qd3 Qe4 Qc2 Nf8 g8Q+ Ke8 Qd5 Qb7 Ne5 Nh7 Nd4 Rb4 Qdc4 Bc6 Qd1 Qd5 Rc8 Ng8 f7+ Ke7 f8N Bb6 Rd8 Qc8 Nfe6 Ngf6 Rh8 Ng8 f6+ Ke8 f7+ Ke7 Kd2 e1B+ Ke2 Rd7 Nc7 Bf2 Qdc2 Be3 Ke1 Kd6 f8Q+ Re7 Qf4 Rf7 Q4c3 Ke7 Qc4 Kf8 Q2e2
1B1K3Q/1rN3r1/2rN2R1/P2Rpb2/n3Rk2/1nPBNq1Q/bp1b1B2/4Q2q b - - 0 1 illegal: No possible last move, all moves rejected
BQ3N2/q3r3/1PR1Bnp1/3kb3/b3rp2/1R2q1Q1/nPQB1N1R/KN2r1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Ke7 h4 Kd6 d4 c5 Kd2 f5 Kc2 a5 h6 f3 e5+ Ke7 h7 f4 h5 c4 b6 c3 d6+ Ke6 d7 f2 h6 g6 d5+ Kf7 d6 Ke6 Rh3 a4 Bd2 a3 Bc4+ Kf5 e6 Ke4 e7 f1R e8B a2 Be6 Qe7 d8N Bg7 d7 Re1 Rd3 Ba6 Nh3 Ra7 Nf2+ Ke5 Qf3 Bb5 Qg3 Nf6 Kb3 Rg8 h8R c2 h7 c1B Kc2 Na6 Rb3 Ba4 B8f7 Nb8 Bd5 Kd6 Ne6 Re8 Nf8 Na6 Ba8 Qe3 d8Q+ Kc5 Bg8 Re4 Qb8 Rae7 Be6 Kd4 Rg8 Kc5 h8Q Kd4 Qhh2 Kc5 Na3 Kd4 Rb1 a1Q Rh8 Qa2 Ra1 Kc5 Nb1 Qa3 Nc3 Nb4+ Kb1 Na2 Rh7 Be8 Qhg2 Qa7 Rh1 Ba4 Rh2 Nb4 Raa3 Na2 Ka1 Kd4 Nb1 Kc5 Bc8 Kc4 Rc3+ Kd4 Rc6 Kd5 Bb4 Bd2 Rb3 Bc3 Bh3 Bd4 Bd2 Qe2 Nd3 Bg1 Nf2 Qd3 Qf1 Qe3 Qe2 Nd7 Qd1 Be5 Qc2 Nf6 Be6+
2R1RQ2/BQqr3P/pQ5P/2pB3r/r2q1k1B/1Nn2N1K/n7/Rn2N1bb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 Kd6 h4 Ke5 e4 f5 d4+ Kd6 b4 c5 b6 g5 e5+ Kd7 b7 a6 b5 g4 d6 Ke6 b6 g3 d7 f3+ Kh3 f4 h6 Kf5 e6 f2 d5 f3 h5 g2 e7 Nc6 b8B Ne5 e8R Rh7 d6 Qc7 d8N Rd7 b7 Bg7 Qb3 Nf6 Na3 Nd3 Qb6 Nd5 Nc6 Bd4 Na5 N3b4 Nb3 Na2 Nc2 Ndc3 Bc4 f1N Ba7 f2 b8Q Nd2 Nf3 f1R Q8b7 g1Q Nce1 Ndb1 Bd5 Rf2 Bb2 Kf4 h7 Rb8 h6 Re2 Rh2 Re5 Rf2 Qg7 Re2 Bg1 Rh8 Rf5 Ree8 Qd4 Rhg8 Re7 d7 Rh5+ Kg2 Re4 d8Q Bf5 Qdf6 Rd8 Qf8 Rd7 Rc8 Qf6 Rh8 Ra4 Re8 Be4 Bc1+ Kg4 Bg5 Qd4 Bf6 Kf4 Rc8 Re5 Kh3 Rh5+ Bh4+ Qf6 Qd8 Qg7 Re8 Qd4 Ne5 Bh1 N5f3 Bh2 Qe7 Bg1 Qf8+
Q3N1K1/N3qBNp/4Q3/2Q2n1b/2bn4/R1PPb1k1/q1RpqBr1/r5RB b - - 0 1 illegal: No possible last move, all moves rejected
Qn2nrQ1/b2pkb1n/p7/R1qRP3/1P1QN2K/2B2NRN/Bq6/1rq4B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kg3 g5 e4 d3 b4 g4 c4 a6 h4 d2 e6 Qg5 b6 Qf6 e7 Bb7 c5 Qf7 c6 Qg7 c7 Qh7 c8N Nf6 h6 Bc6 h5 f4+ Kh4 f3 e5 f2 b7 g3 Ra5 g2 Rh3 Qc2 h7 Be4 h6 Qc7 Bb2 Ng8 Bc3 Bg6 Rg3 Nf6 Nh3 g1N Bg2 f1Q Bh1 Qf2 Qg4 d1Q Nd2 Qde1 Qd4 Bf7 Nf3 Qc1 Rd5 Rg8 h8Q Qc5 h7 Qfb2 Qg7 Rh8 Qg5 Rg8 h8Q Bh6 Qg6 Be3 Qg5 Rf8 Qgg8 Ra7 Nb6 Bf2 Nc4 Ra8 Ncd2 Be3 Nf2 Nh3 Nde4 Ng5 Nh3 Ngh7 Bg2 Nc6 Bh1 Rc8 b8R Bg1 Rb5 Nb8 Ra5 Rc6 Qe3 Rd6 Rd1 Rd2 Qf2 Re2 Rd5 Re1 Qd4 Qcd2 Qg4 Rb1 Qe6 Qdc1 Qc6 Bh5 Qa8 Kf7 e8B+ Ke7 Bf7 Ne8 Be6 Bf7 Qg8 Qc4 Qd3 Ba7 Qd4 Qb5 Rc5 Qb6 Ba2 Qb5 Rd5 Qc4 Rab5 Qc5 Ra5
Q3n1rb/Q3q1Qr/2p1k1K1/B2r4/R3BPNr/1N1P2R1/bR3pr1/4NnB1 b - - 0 1 illegal: No proof kernel
4K3/R1Q1bp1b/1b1Br1bR/1p1qB3/3n1bP1/4N1P1/1kNRnQ2/1BN2r1Q b - - 0 1 legal: proof: f4 d5 b4 a5 bxa5 e5 fxe5 g5 c4 dxc4 h3 g4 hxg4 Bf5 Qb3 Be6 Qd1 Bc8 Kf2 Ke7 Kf3 Ke6 Ke4 b5 d4 c5 a4 h5 d5+ Kd7 Kf5 c3 e4 c2 e6+ Kd6 e5+ Kc7 a6 Kb6 d6 Ka5 g3 Kb4 a7 Kb3 d7 c4 a5 c3 a6 h4 e7 h3 e8N h2 e6 Ba3 e7 Rh4 Nd6 Rh8 e8Q Rh7 Qe5 Bb2 Na3 Rh3 Qf3 Nf6 Ndc4 Nh5 Qf2 Nc6 Qc7 Nf4 Ne2 Rh6 Ne3 Re6 Ra2 Bb7 Bd2 c1B Nac2 Ba3 Be1 Rc8 a8Q Be7 a7 Bca3 Bg2 Bac5 Be4 Bb6 Bd2 Rh6 Bc1 Nd4+ Ke5 Bd5 Bb2 Bc6 Bg6 Be4 Qac6 Bf5 a8R Bd3 Bh7 Bg6 R8a7 Ra8 Ba3 Rc8 Bd6 Ra8 R2a4 Kb2 Nc1 Nfe2 R4a6 Rc8 Rd1 h1B Rd2 Bhe4 Qd5 Bd3 Qh1 Bdf5 Qcb7 Rc4 Qc7 Ra4 Kd5 Ra1 Ke5 Qa8 d8B Qf3 Na2 Rf1 Nc1 Bf8 Kf6 Qd5 Be5 Bb4 Be7 Be4 Ne1+ c2 Kg7 Bef5 Kf8 B4c5 Ke8 Bb4 B7f6 Be7 Bd6 Be4 Bg8 Bh7 Bh8 Re6 Bhe5 Bhg6 Bh7 Kb1 Nb3 c1B N1c2 Kb2 Na5 Bc5 Ng2 Bh5 Nce1+ Kc3 Ra2 Bf4 Ne3 Rg6 Nb3 Qc4 Nc1 Qd5 Rd2 Bc2 Rb6 Kb2 Rc6 Bb6 Bc5 Rg7 Rh6 Rg6 Bb4 Re6 Be4 Bg6 Bbd6 Bh7 Rd1 Bb3 Bb1 Ba4 Rd3 Bc2 Rd1 Bcd3 N1c2 Bdg6 Rd2
r2r3q/1R1QP1pn/b2R2K1/NQ2kP1r/8/b1NrB1Nn/B1Rp4/2BQ1r2 b - - 0 1 illegal: No proof kernel
1BBRb3/2p1R1b1/qNr5/2QR1kB1/1K2Nb2/N1pb1P2/4PQb1/n1nr3Q b - - 0 1 illegal: No possible last move, all moves rejected
4bB1R/1bb2N2/N2Q4/1NQ1R2B/BPbK1R1n/1Pr1p1r1/1np2Q1q/3nk3 b - - 0 1 legal: proof: h4 d5 e4 b5 c4 g5 cxd5 gxh4 a3 f5 exf5 b4 axb4 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 g4 Ke5 d6 a5 g5 h5 b3 c5 f3 c4 g6 c3 g7 a4 d3 a3 f6 a2 f7 h3 d7 h4 Na3 h2 Nb1 h3 Nd2 Ba6 Ne4 Nc6 Qc2 Qb8 d8N Nh6 g8B Bc4 Qf2 Na5 d4+ Kd5 f4 e5 f5 Bd6 f6 Bc7 Rb1 a1N Nc5 e4 Ne2 Ra7 Bh7 Rg8 f8R Rg4 f7 Rg3+ Qf3 Ra6 Bg6 Rc6 Na6 Rc5 Bh5 Nf5+ Kf2 Nh4 Bh6 Rc6 Re1 Nc2 Rh8 Rc5 f8Q Ne3 Nf7 c2 Qe7 Rc6 Bf8 Rc5 Rg1 h1B Qg2 h2 Nc3+ Kc6 Nb5 Kd5 Bd3 Nd1+ Ke2 Rc6 Qf2 e3 Ref1 Be4 Rg2 h1B Qc5+ Ke6 Rgg1 Bf5 d5+ Kf6 Nh6 Ke5 d6+ Bhd5 d7 Bg6 d8Q Be8 Bf3 Kf4 Nf7 Qc8 Rh1 Qh3 Rh5 Qh2 Re5 Rh6 Qdd6 Bb7 Qd7 Rc6 Qdd6 Be6 Bde4 Nc4 Kd3 Ncb2+ Kd4 Bc4 Bh5+ Rf3 Qd2 Kg3 Qe1+ Kg2 Bf5 Rh3 Bd7 Rg3 Rf4 Be2 Qa7 Rc3 Qac5 Bd3 Na3 Bc4 Ba4 Qg1 Qe2+ Qf2 Rh3 Kg1 Qf3 Kf1 Nb5 Ke1 Bg4 Ng6 Rh8 Qh2 Bh5 Nh4 Qf2+
1k1Bb1B1/2R1R2r/4R3/1n3PQ1/3n1bN1/N1rp1rrP/2NpQ1nq/KQ5B b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 f4 Kd7 c4 Kc7 Kc2 a5 b4 g5 Kb2 e5 b6+ Kb7 h6 d3 b5 d4 f6 g4 f5 d2 f7 e4 h7 g3 c5 g2 h3 e3 Na3 e2 Nf3 e1N Nh2 g1R Ng4 Qd5 Bg2 Na6 c6+ Kb8 b7 Nc5 c7+ Ka7 b8N Qd6 Qe2 Bd7 c8B Ne7 Na6 Ne6 Nb4 Be8 b6+ Kb8 b7 Nd5 Nbc2 Bh6 f8Q Bf4 Qg7 Ndc7 Qg5 Nb5 Ra2 Rf1 Ka1 Rf3 Rf1 Qc7 Bh1 Ng2 Re1 a4 Bb2 d3 Bf6 Ra5 Bd8 Ned4 Be6 Ra7 Rc1 Rg8 h8R Rg6 Bg8 Qd6 Nc4 a3 Rh7 Rg7 Rb2 a2 N4a3 Rc7 Re1 Rc3 Re7 Qc7 Rb4 Qe5 Rc4 Rg3 Kb2 a1R Rcc7 Rf3 Qf2 Qd6 R1e6 Re1 Qf1 Ree3 Ka1 Rg3 Qd1 Ref3 Qe2 Qe5 Rc5 Qe3 Rcc7 Qg1+ Qf1 Qh2 Qe1 Bc6 Qe2 Be8 Rh7 Nd6 Rhg7 Rc6 Rcf7 Rc3 Be7 Kc7 b8Q+ Kc6 Qb3 Kc7 Qb1 N6b5 Bd8+ Kb8 Rh7 Rd7 Rhg7 Rd5 Rc7 Rd7 Rgg6 Rg7 Ree7 Rh7 Rge6
1b1RbK2/2k2Q2/3n1N1r/2PR3B/1N3r2/B1RBpn2/NqnQpPQ1/1b3n2 b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 dxc5 h5 axb5 Rh6 gxh5 Rh8 Kd2 a5 Ke3 d5 Kf4 Kd7 Kg5 e5+ Kg6 e3 Kf7 g5 h4 g4 c4 g3 b4 e4 c6+ Kc7 b6+ Kd6 b7 a4 c7 e2 c5+ Kc6 h6 g2 h5 a3 h7 a2 h6 d4 b5+ Kd7 b6 d3 Nf3 g1N Qd2 Bg7 Ng5 Bf6 Rh5 Ne7 Nc3 Na6 b8Q Nd5 b7 Ne3 Ba3 Nf3 Qa7 Be5 Rc1 a1N Na2 Rb8 Rc4 Nac2 Rc3 Kc6 Qa8 Bf5 c8B Qd4 Be6 Rbe8 b8N+ Kc7 Nc6 Ref8+ Ke7 Bg6 Bg4 Be8 Ncb4 Bh2 Qd5 Rf4 Qf7 Bg3 Rb3 Qb2 Rc3 Rg8 h8Q Rg6 h7 Rh6 Qhg8 Bh2 Bg2 Nf1 h8R e3 Ne4 Bg3 Rd5 Bh2 Qd1 d2 Bh5 Bg3 Qe1 d1B Nf6 Kb7 Bh3 Na1 Rh7 Rc4 Qfg6 Nc7 Qd2 Nb5 Qe6 Bc2 Bf5 Bb1 Bd3 Bb8 Qg2 Rf4 Rg7 Kc7 Kf8+ Bd7 Re7 Nd6 Re8 Nc2 Rd8 Be8 Qf7+
1r5R/Q1KN1n2/BRNB1rP1/1PpB2R1/2Q2n1p/r3q2n/2Qb1kb1/1N5r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 g4 h5 b4+ Kc4 d4 c5 g6 a5 g7 h4 d6 f3 g5 f2 b6 f4 d7 a4 d5 a3 b7 a2 g6 f3 d6 Qc7 d8R Bh3 Qc2+ Kb5 Bf4 Nf6 g8B Bh6 Bd5 Nh5 Bg3 Qc6 d7 Nf4 Rf8 Rg8 d8N Qe8+ Kd6 Bg2 Kc7 Nh3 Bd6 Qe3 Nc6 Ra3 Rf5 Bf4 Rg5 Nd7 Rh2 Ne5 b8Q+ Ka6 Qa7+ Kb5 Rh1 Nf7 Rh2 Rb8 Rh1 Qd3 e4 Bd2 e5 Qe2 e6 Qd3 Be2 f1R Rh2 f2 Nf3 Rh1 e7 f1R Nfe5 Rf6 Bd1 Qe3 e8Q Rhf1 Nd7 Rh1 Qf5 Qd4 Qg8 Qe3 Be4 Kc4 Be2+ Kb3 Bb5 Kb2 Bc4 Kc1 Bed5 Kd1 Qc2+ Ke1 Ba6 Kf2 b5 Qe2 Rh5 Qe3 Rh8 Rf8 Nc3 Rb8 Rg1 a1N Nb1 Nb3 Re1 Qf4 Re5 Qe3 Re6 Nf4 Rh3 Nd4 Rg3 Nf3 Rg5 Ng1 Re8 Ra8 Rb8 Ngh3 Rb7 Rb8 Rb6 Nd8 Qe6 Nf7 Qee4 Ra8 Qb4 Rb8 Qbc4
2bbn3/K3NB1n/P2Rp2n/2rQ4/bN1n1kp1/2B2R2/1rR1P2Q/2N1B1Qq b - - 0 1 legal: proof: g4 a5 c4 g5 b4 d5 cxd5 axb4 h4 f5 gxf5 g4 Bh3 Qd6 Bg2 Qf6 Bf1 Qg5 hxg5 Bg7 Ba3 Bh6 Bc1 Bf8 f4 Kd7 Kf2 Kd6 Ke3 b5 Kd4 h5 a4 h4 g6 b3 a5 b2 a6 b4 f6 c6 f5 b3 f7 h3 f6 h2 g7 Bd7 Bg2 Ra7 Nf3 Be6 Ne1 Nh6 g8N Bf5 Nc2 Bd3 Qg1 Bg6 Ra3 Bg7 f8Q Be4 Nb4 Bf5 Nc3 b1N Nca2 b2 Rg3 Nd7 Qb8+ Rc7 d3 Na3 Bd2 b1B Nc1 Ba2 Be1 Bb3 Bc3 Bf8 f7 Nf6 Bf3 Bg7 f8B Ba4 Be4 Bd7 Bg6 Bc8 Bf7 Nb5+ Kc4 c5 d4 Rh7 Be1 Bh8 Bg7 e6 Ne7 Bb7 Qe3 Bc8 Rf1 h1Q Qg1 Nd7 Rff3 Nf8 Bf6 Rg7 Rc3 Nh7 Rc2 Rg5 Bg7 Rf5 Bf6 Rf3 Bg7 Rb3 Bf6 Rb2 Bg7 Kd7 d6 Rc6 d5 Nc7 Bgc3 Ne8 Nba2 Bf6 Nb4 Bb3+ Kb5 c4 Ka5 Rc5+ Kb6 Ba4 Ka7 Bg5 Bd4 c3 Bf6 Kd8 d7 Bh4 Qf4 Bg5 Qff2 Kc7 Qfh2 Kd6 Bh8 Bf6 d8R+ Ke5 d6 Kf4 d7 Bh4 Rd2 c2 Bc3 Bf6 Rd6 Nc7 Rg8 Ne8 d8Q Bg5 Qd7 Bf6 Qc6 Bh4 Qd5 Bg5 Nca2 c1N Rg7 Nb3 Nc1 Bh4 Rg5 Nd4 Re5 Bf6 Ree3 Ng5 Rd3 Nh7 Rd2 Bh4 Rc2 Bg5 Ng8 Bd8 Ne7 Bad7 Bg6 Bc6 Bf7 Ba4 Rf3#
kb3rnQ/1n1rq1P1/1RN1pRNQ/bR3Q1B/6B1/PN2p1bb/2r5/K1B5 b - - 0 1 illegal: No proof kernel
n1qr1Rk1/Q1Rp4/B2P3n/rP4KR/rBpN3r/1N1B2nQ/N1b5/2Q1b3 b - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 c6 exf5 Qb6 a5 Bh6 a6 Qb7 axb7 Kd8 cxb5 Bg7 b6 Bf8 b5 Ke8 Ke2 Kf7 Kf3 e5 Kg4 h5+ Kg5 a5 d4 e4 g4 c5 f4 c4 f6 e3 d5 e2 d6 e1N f5 h3 Nf3 h4 Bd3 h2 Ba3 h3 Nc3 a4 Bb4 a3 Nd4 a2 Nb3 Nc2 Qc1 Na6 b8Q Nd4 b7 Nh6 Qa7 Bg7 b8N Kg8 Nc6 Ne2 Ncd4 Bb7 f7+ Kh7 f8Q Nc7 f6+ Be4 f7 Ng3 Qaa3 Ra5 Qa8 Rd8 Qa7 Na8 f8R Ra4 Re1 Bf5 Re5 h1R Rc5 h2 Rc7 Be5 Rb1 a1R Na2 Rg1 Rb2 h1Q Rh2 Qc6 Rh5 Re1 Qe3 Rh1 Qac1 Rh4 Qf3 Nh1 Qh3 Qa6 Be4 Bg3 Bb7 Qc6 Ba6 Be1 Kf6 Qd5 g5 Qg8 g6+ Kh8 Kg5 Bc2 g7+ Kh7 Rc5 Ng3 Rc7 Qh8 g8B+ Kg7 Bf7 Ra5 Nc3 R1a4 Bg6 Qg8 Na2 Qh8 Rf2 Kg8 Bd3 Qe5+ Kg6 Qc5 Rff5 Qc6 Kg5 Qb7 Rf2 Qc8 Rf8+
nr2n3/N1BpPK1N/Q4Pn1/1B3bBQ/3p1Q1b/1k5R/n2b4/rq1N1R1R b - - 0 1 illegal: No proof kernel
k1Nr3q/2P2Q2/Q1b1p2n/b5b1/1r2R1N1/n1pRrPBK/bR1B2N1/QB6 b - - 0 1 illegal: No proof kernel
r3Q1qR/4qB1B/r3rpPR/2k1r3/2b2pNb/1R2P2n/Q2NNBn1/3Q1K2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 Kd6 d4 c5 g6 a5 b6 h5 g5 c4 g7 a4 g6 h4 b7 a3 b5 c3 b6 a2 Be3 h3 Nd2 c2 Rb1 c1Q Rb3 a1R Bf2 h2 e3 Na6 b8Q+ Nc7 b7 Qa3 Ne2 Ne7 g8B Nf5 Bh7 Nh4 Qa7 Ne6 b8N Ba6 Nc6 Ng5 Ne5 Be7 Ng4 Re8 Bh3 Bf6 Kf1 Bc4 Bg2 Qb4 Qa2 Nh3 Be4 Re6 Bf5 Kd7 d6 Kc6 d5+ Kc5 d7 Qg8 d8Q Ng2 d6 Bh4 d7 f6 Qe8 Qb7 d8R Qe7 Qab1 R1a6 Qa2 Reb6 Be6 Rd6 Rg1 h1R Bd5 Rh2 Bf7 Re6 Rh1 Ne1 Ne5 Rg2 Rdb8 Rg5 Ng4 Rge5 Rh2 Ng5 Rh3 Ng2 Rh1 Bg3 Rh6 Bh4 Qea4 Nh3 Rf8 Qg7 Rh8 Qg8 Qe8
4Q2q/b1k3n1/K1Pb3N/Q1B2R1b/R2RNr2/N3q3/pp1P2rB/QBb1n3 b - - 0 1 illegal: No proof kernel
6Nn/1Q5r/Kp2rb2/1R2Rk1q/BbQ2n2/Q1b4P/p2BP1Nq/2N1Bb1R b - - 0 1 illegal: No possible last move, all moves rejected
6QB/R2n1n1R/4N1pb/1b6/Nn1q1B2/2Qp1NR1/n1B2rPP/1Q1bK1kn b - - 0 1 illegal: No proof kernel
b3rk1N/B1b1bQN1/2r3pP/4Q3/2n1pnPB/1KnR1q1R/2QpN2B/R7 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 b5 dxc5 h5 a4 h4 axb5 h3 g3 Qc7 Bg2 hxg2 Qf3 Qb6 Qd1 Qd8 Kd2 e5 Kc3 a5 h4 d5 b4 d4+ Kb3 e4 c4 g6 f4 d3 f6 Bb7 f7+ Ke7 h5 Ba6 f5 Nc6 h6 Qb6 f6+ Ke6 g4 Ne5 c6 Qa7 c5 Nf3 c7 Nh2 c8R Qd7 b6 Bd6 f8N+ Kf7 b7 Bb8 c6 Nf3 c7 Ra7 b5 Rh7 b6 Ne7 Na3 Ne5 Qc2 Qf5 Ne2 g1N Rh3 Qf3 Bg5 Ra8 Bh4 Nc4 Ne6 Nd5 Ng7 Nc3 Rd8 d2 c8Q Bc7 b8B Bb7 Qf5 Ra6 Rd3 Rh8 Qc5 Ba8 b7 Re8 Nb5 Rc6 Nd6+ Kf8 f7 a4+ Kb4 a3 Kb3 a2 Ba7 Qf5 b8B Qf2 Qe5 Qf3 Rf1 a1B Rd1 Bb2 Ra1 Bc1 Qf4 Bd8 Rh2 Nh3 Qf6 Ba3 Qe6 Nf4 Rh3 Nh5 Qf6 Bc5 Qf4 Bcb6 Bc7 Bf6 Qh2 Ke7 f8Q+ Kd7 Qg8 Ke7 Nf7 Bg5 Bf4 Bc7 Nh8 Bf6 Qd5 Kf8 Be5 Be7 Qf2 Qf6 Bh2 Qf4 Qfd4 Qf3 Q4e5 Nf4 Qf7#
NqBk3R/1Qb2b2/1rpP1K2/N5B1/nQ1p4/nQnR3B/b3P1Rp/rN6 b - - 0 1 illegal: No proof kernel
RKn2NB1/R1R3QQ/pP1B1b2/2ppBn1b/1kNP4/1Q1q4/r1b5/1r2n1N1 b - - 0 1 illegal: No possible last move, all moves rejected
3Q4/pRK5/4rN1R/3BP1PN/n1pb1n2/N4bbk/3pQ1n1/RqBBQr2 b - - 0 1 illegal: No proof kernel
r3n1K1/1N1q4/QQp1rb1k/p3qR2/p1bPQNB1/n1RN4/1n5P/BB3R2 b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Nh6 fxe5 Ng8 a4 bxa4 Kf2 g5 Kf3 a5 Ke4 c6 d4 g4 b4 f6 b5 Kf7 b6 Kg7 b7 g3 h6+ Kg6 e6 g2 h7 f5+ Ke5 f4 e4 f3 e7 f2 e8B+ Kg7 d6 Nf6 d7 Nd5 Ke6 Ne7 e5 Ng8 Nc3 Ne7 Ne4 Nf5 Ne2 g1Q Bg6 Ra7 Bh3 f1N Qd3 Qgg5 Ra3 Rg8 h8R Qh4 Nc5 Qh6 Qa6 Nd6 Bg4 Be7 Bb2 Nc4 Ba1 Nfd2 Rf1 Nb1 Rc3 Qf4 Rh5 Nba3 Bb1 Nb2 Nd3 Ra8 Rf5 Kh6 Kf7 Rg6 e6 Qdc7 d8N Nd7 b8Q Nf6 Qba7 Qg3 Q6b6 Ba6 Nb7 Bc4 Qaa6 Qe3 Nef4 Qd7 Nd5 Bd8+ e7 Qe4 Kf8 Qe1 e8Q Qe2 Qe7 Ne8 Qe5 Re6 Kg8 Bf6 N5f4 Qe3 Qd5 Qe5 Qe4
1NrN1bN1/3P2b1/1BRq2QR/1K6/BpBpQ3/3P2Rn/pr1qQ2k/2n1q3 b - - 0 1 illegal: No proof kernel
4b1rB/P4N2/2q3qn/2n2r1p/1QQ1N1R1/1BppbNQP/7K/Bk1RR1n1 b - - 0 1 illegal: No possible last move, all moves rejected
4Bn2/Rr2pRR1/pr3qnN/B3N3/3k2KB/3Q2PN/bP3bp1/r2Qr1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
2r1bBr1/4K2n/1P2np2/3R1N2/1rN4Q/q2qRBpR/3QBpP1/2QN1kq1 b - - 0 1 illegal: No possible last move
3n1r2/1r3b1K/3p1b2/bRPp2Bp/2RN1Q2/1B3N1k/n1B3rP/Q1nRN1Q1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c6 fxe5 f4 d4 Qg5 d5 Qf5 gxf5 cxd5 Kf2 Kf7 Kf3 g5 Kg4 a5 Kh5 d6 b4 a4 e4 h6 c4 f3 f6 Ke6 Kg6 h5 b6 f2 b5 g4 f7 a3 c5 a2 b7 g3 b6 g2 Na3 Nd7 b8N Bh6 f8Q Ra5 b7 Ndf6 Nc6 Ra6 b8R Rh7 Rb5 Bd2 Bd3 f1N Nf3 Nh6 Bc2 Ng3 Qg1 Ba5 Bg5 Nf7 Rd1 a1B Rc1 Ra8 Ncd4+ Kd7 Qh6 Nd8 e6+ Ke7 e5 Ne2 Rd1 Nc1 Bb3 Bd7 Nac2 Rf7 Qh8 Be8 Nce1 Rb8 Bc2 Rf8+ Kg7 Bf7 Kh6 Ke8 e7 Ne4 Kh7 Kd7 Bb3 Nc3 e8B+ Kc7 e6 Rb7 e7 N3a2 Bd7 B1c3 e8Q Bb2 Qge3 g1R Qf4 Rg2 Bf5 Ba1 Bfc2 B1c3 Qee3 Kd7 Ne2 Bf6 Qg1 Ke7 Rd4 Ke6 Rc4 Nd3 Qfe3+ Kf5 Ned4+ Kg4 Qc1 Kh3 Qa1 Be5 Qf6 Ndc1 Qf4 Bg7 Qf2 Bf6 Rf1 Bc3 Qg1 Bb4 Rf2 Bc3 Rd2 Ba5 Rd1
1nRb2Br/pB1N4/1b1BQ3/4RR2/4pN1k/4Qp2/KNP2Pb1/b1br1Q1q b - - 0 1 illegal: No proof kernel
3b3k/n1QKQ3/p1pbpQR1/1b3B2/RN2P3/1b2B1Rr/q1BNr1P1/1b2N3 b - - 0 1 illegal: No proof kernel
N1N3Q1/1pR2R2/nbBq1b1K/P2pQ1N1/pr6/2bP1Q1R/3k1b2/Bb1n3B b - - 0 1 illegal: No proof kernel
1K2B3/2QpbN1n/1p2bb2/Nb5r/3Pq3/1pQPkR1N/3q4/1rBQB1RR b - - 0 1 legal: proof: d4 g5 h4 f5 hxg5 a5 e4 Nc6 exf5 Ne5 b4 Nd3+ cxd3 axb4 Ke2 Kf7 Kf3 h5 Ke4 c5 Ke5 b3 a4 e6 g4 h4 f4 c4 a5 c3 g6+ Kg7 f6+ Kh6 g7 h3 f5+ Kh7 g5 c2 a6 b6 a7 h2 f7 Bb4 f8B Rb8 a8Q Qe7 f6 Kg6 f7 Nf6 g8N Rh5 Qb7 Ra8 Be2 Nh7 Qc7 Ba6 Nh6 Bb5 Nh3 Rc8 Rg1 h1B Na3 Bd5 Nc4 Qe8 Na5 Be7 Qc3 Bf6+ Kd6 e5 Be7 e4 f8R e3 Nf7 Kf5 g6 Be6 g7 Rc4 Bf3 e2 g8Q e1Q Qg3 Qd2 Qh2 Ra4 Kc7 Ra2 Rb1 Rb2 Bb4 Be7 Ra1 Rb1 Rh1 Qa8 Qd6 Qe4 Kb8 Bf6 Qdc7 Be7 Bd6 Bf6 Bg3 Be7 Be1 Bf6 Ba3 c1B Rg1 Qa2 Be2 Bcg5 Bc1 Qd2 Rh1 Rh4 Bh5 Be7 Nh8+ Bgf6 Be8 Rh6 Nf7 Rh5 Qdc2 Kg4 Rg1+ Kf3 Qd1+ Ke3 Rh1 Bc5 Qg4 Qd5 Bg3 Bg5 Rg8 Bf6 Ra2 Bd6 Be1 Qe4 Qd1 Bc5 Rgg1 Bce7 Ba3 Qc1 Rf2 Qc2 Bc1+ Qd2 Rf3+
5NKN/3BbBnQ/2p1Q3/1kB2nQ1/4nP1R/R2N2qq/1pP3bp/n2R2r1 b - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 b4 axb4 h3 f5 gxf5 b5 h4 g4 Be3 Ra6 Bg5 Rg6 Bc1 Rg5 hxg5 Ba6 Rh6 Bb7 Rh1 Bc8 Kd2 h5 Ke3 d5 Kf4 Kd7 a4 Kc6 e4 h4 e6 d4 Ke5 b3 f4 h3 e7 g3 e8B+ Nd7+ Ke6 g2 Kf7 b2 e5 d3 f6 d2 a5 b4 g6 b3 g7 Ba6 e6 Qb8 e7 Qc8 Qg4 d1Q Qg5 Qd6 Bc4 Qd3 Nf3 g1N Na3 b1N Nh4 b2 Be3 Nf3 Bc5 Nbd2 Rad1 Nb3 Ng6 Bb7 a6 Na1 a7 Nd4 a8R Qg3 Be6 Nf5 Nc4 Rh4 Ra3 Rg4 Nh8 Kb5 Ne5 Bg2 Nd3 c6 Bd5 Nb8 Rh2 Na6 Bd7 Nc7 e8Q Bd6 Qe6 Be7 Qg6 Ne8 Qh7 Bd8 Kf8 Rg5 f7 Ngf6 g8Q Ne4 Qgg6 Neg7 Kg8 Bf6+ f8N Be7 Rhh1 Rg4 Qg5 h2 Rhe1 Qe8 Re3 Qh5 Ba2 Qgh4 Rh3 Qg3 Rh4 Qh6 Qh5 Rg6 Qg5 Qh5 Rg4 Qhh3 Rh4 Qe3 Qef6 Bf3 Qgh6 Rg1 Qhg5 Bg2 Bf7 Qeg3 Qe6
1N2B3/Rn3r2/2b1RN1p/r1R2bb1/Q1P2Q1P/nN1kp1B1/2r1Qr1p/K6B b - - 0 1 illegal: No proof kernel
5NR1/1rQ1p2p/NP1RnB1k/1qnb1r2/5QK1/pB3Q1p/3N3P/nbB1R3 b - - 0 1 illegal: No proof kernel
BRNr2Rq/N1p4r/nbP2b1N/3QP3/QrR2k2/2p2pnQ/K2B1p2/7B b - - 0 1 illegal: Other
1b3R1N/2R4B/5p1N/Q1n1n2r/QKP1p1np/1Q2r1q1/2p2P1B/B3NkrR b - - 0 1 illegal: No proof kernel
q2B4/NQb1Qrqb/Qp2K2n/Pn1p2p1/3RR2p/kPN5/B3N3/qR3B2 b - - 0 1 illegal: No proof kernel
qR2Q1B1/p3Rq1B/4pN1n/1KR3NQ/P5Pp/2B1QbN1/2n1r1p1/k2n2r1 b - - 0 1 legal: proof: b4 c5 bxc5 f5 e4 g5 Qg4 d5 Qe2 dxe4 Qd1 Bg7 g3 Be5 g4 Bg3 gxf5 g4 Bh3 Bd6 Bf1 g3 Nc3 g2 Nb1 Bg3 hxg3 Kf8 Rh2 Kf7 Rh1 Ke8 Ke2 Kd7 f4 Kc6 a4 Kd5 c4+ Kd4 f6 b5 f7 h5 f8Q h4 f5 b4 c6 b3 c5 e3 c7 b2 f6 Bd7 c8Q Na6 f7 Kc4 d4 Bc6 d5 Be8 c6 Rh5 d6 Rd5 d7 Rc5 c7 Nf6 Nc3 b1N Nd5 Ne4 Nf6 Kc3 Bd2+ Kb2 Kd3 e2 Qh6 e1Q f8N Na3 Qe3 Nc2 Ne6 Rg5 Kc4 Nb8 Rc1 Rb5 Ne2 Nf2 Ng5 Bh5 Bc3+ Ka2 Qd5 Bf3 g4 Nd1 Ng3 Rb1 Bd3 Qf2 Re1 Nc6 Bh7 N6d4 Qa5 Qf8 Qe8 Nf5 d8R Nh6 c8B Rab8 Qae5 R8b2 Be6 Ka1 Beg8 Qf7+ Kc5 Qd2 Rb8 Qd8 Rb4 Qa8 Rb8 Nb4 Kb5 e6 Rf1 Ka2 Qf5 Re2 Qg6 Ra1 Qh5 Nc2 Rf2 Re1 Rd2 Re2 Rd7 Rb1+ Bb4 Ka1 Re7 Ne1 Rc5 Nc2 Rbc8 Nb2 Bd2 Rg1 Rb8 Nd1 Bc3+
3RN2Q/q1QBbQBp/3r2N1/3rn3/p2p2PN/3b1R1P/1p2k1B1/1R1b1bK1 b - - 0 1 legal: proof: d4 b5 b4 c5 f4 g5 a4 e5 dxe5 Na6 bxc5 gxf4 Qd4 b4 Qd3 Nc7 Qd1 Nb5 axb5 Bd6 Kf2 Be7 Ke1 Bf8 Kf2 Ke7 c4 Ke6 e4 f5 g4 d5 c6 a5 b6 a4 c5 f3 b7 f4 b8Q d4 c7 b3 h3 b2 c6 Bh6 Ra3 Qf6 Nd2 Ra7 Qdb3+ Ke7 e6 Kd6 e5+ Kc5 e7 Ba6 c8R Bg5 e8Q Ne7 e6 Ng6 e7 Rd7 c7 Qg7 Rd8 Ne5 c8B Bd3 Qbf7 Rd6 Ne2 Bf6 Kg1 f2+ Kg2 Bg5 Bd7 f3+ Kh2 Rg8 Bg2 f1B Nf4 f2 Nf3 Bfe2 Ng6 f1B Kg1 Bd1 Nfh4 Rd5 Qef8 Kc4 e8N Be7 Bh6 Rh8 Qf6 Qf7 Qa7 Rg8 Qh8 Qg7 Qf7 Rf8 Qe6 Rf6 Qf7 Rd6 Qa5 Bb1 Re3 Bbd3 Qa7 Kc3 Qc7+ Kd2 Rg3+ Ke2 Rf3 Qf6 Bg7 Qg5 Nf8 Qc1 Nfg6 Qc5 Qb8 Qa5 Qc7 Qa7 Kh2 B1c2 Rg1 Bb3 Bh1 Bg2 Rb1 Bd1 Kg1 Bf1 Bg2
1k3BQK/N3N3/rp2R1p1/n4QR1/2pN1n1b/p4qq1/1Pn3Pq/B4QRB b - - 0 1 illegal: Other
Q1R2r1B/1r2Q1R1/n2Kp1p1/pp4N1/3PNBBb/2k1P1pb/1N5R/Qr3q2 b - - 0 1 illegal: No proof kernel
4rq2/B1p1pNkB/4Rp2/1NB1rQ2/p1Q5/QR1R1PP1/1npKb3/n4Nq1 b - - 0 1 legal: proof: c4 g5 d4 b5 h4 bxc4 hxg5 d5 e4 Bg7 exd5 Bf6 Qh5 Be5 Qd1 Bd6 a3 Bb4+ axb4 Bb7 b5 Bc8 b4 Kf8 d6 a5 g6 h5 b6 c3 g3 c2 b5 f6 b7 a4 d7 h4 d5 h3 d6 h2 f3 Rh6 g7+ Kf7 b6 Rh8 Kd2 Rh5 Ne2 Ra7 Nd4 Ra6 Bd3 Ra7 Nb5 Rh7 Ra3 Nc6 b8R Qf8 d8Q Be6 d7 Rh4 b7 Re4 Qc8 Rh4 Re1 h1Q Bh7 Ra5 Rd3 Nb4 Ba3 Qg1 Qc1 Bc4 Re6 Nh6 Qb2 Nf5 d8N+ Ke8 g8Q Nd4 Qa2 Re4 Qb2 Ra8 Qg4 Re5 Qa1 Nbc6 Bc5 Nb4 Qa3 Nb3+ Kc3 Qg8 Nd2 Kf8 Nf1 Na1 Kd2 Qf7 Qd4 Kg7 Qd5 Qf8 Nf7 Na2 Qe4 Nc3 Qf5 Nd1 Qd8 Ba2 Qd5 Nb2 Qc4 Bb3 Rbd8 Rc8 b8B Ba2 R8d6 Re8 Bba7 Bb3 Re3 Ba2 Rdd3 Bb3 Qd5 Bc4 Rb3 Bd3 Qc4 Be2 Red3
B7/1pK2p2/N4RQn/2R4p/qBpb1Qp1/Q7/r1Pnk1PR/1NB1q1Nn b - - 0 1 illegal: No proof kernel
4q1R1/2n2p1p/1k1K1n1Q/1B3PBQ/1NNbr1b1/BNrb4/4RQRP/r5qr b - - 0 1 illegal: No proof kernel
2qnQR2/4Q1Bp/bNpK4/2n5/nbP1b3/3R2Qr/2R2N1P/1BNBnrkb b - - 0 1 legal: proof: d4 e5 dxe5 g5 f4 gxf4 a4 b5 axb5 Qg5 Qd2 Qe7 Qd1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 c4 f6 b4 f3 g4 c6 g5 f2 g6 a4 b6 a3 g7 a2 b5 Na6 b7 Nh6 g8Q+ Nf7 b8R Bb4 Qg3 Rf8 b6 d5+ Kd4 Kf5 b7 Qc7 e6 Nc5 e7 Ra3 e8Q Nd8 Qe1 Rb3 Bg2 f1B Bf3 Bg2 Nd2 Ra3 Bh5 Be4 Bb2 Re3 Rc1 a1N Ra8 Rb3 b8N Ba6 e3 Qc8 Nd7 Rf7 Bg4+ Kg5 Rc3 f5 Ke5 f4 Rc2 f3 Kd6 d4 Nb6 d3 Ne2 f2 Nc1 f1B Bg7 Bfg2 Bd1+ Kf5 Rg1 Bh1 Rg2 Rf8 Rc3 Nc2 Rf2+ Bef3 Ne4 d2 Rd3 Ra3 Qe2 Ne1 Rg2 Rc3 Nf2 Bd5 Bc2 d1N Bb1 Nb2 Qe7 Bf3 Qe8 Bg4 e4+ Kg5 e5 Nba4 e6 Rf4 Nd1 Rf1 e7 Kf5 Qee3 Bf3 Rc2 Be4 Nf2 Ra3 Qh8 Rb3 e8B Rc3 Bh5 Rb3 Qg1 Ra3 Qe2 Kf4 Qe8 Rc3 Rd1 Rh3 Rd3 Bd5 Q2e7 Bde4 Rdd2 Ke3 Qgg6 Qg4 Rd1 Kf3 Rd3+ Kg2 Rb8 Kg1 Rc8 Qg5 Bd1 Qg2 Qgg5 Qg4 Qe3 Qf5 Qg3+ Bhg2 Nb3 Nde6 Qeg6 Qg4 Rf8 Nd8 Qge8 Qc8 Qge5 Bgf3 Nc1 Bh1 Qg3+
BK1Q1nN1/pBnpr1bp/4q3/2k1r2n/q2RR3/1rN5/3PNQ1P/2BbQ1R1 b - - 0 1 illegal: No proof kernel
2n1Q3/4rb1q/b1QbBQ2/N3p2n/1NN3Kp/1r1k2p1/R2BR1PP/Rn1B3n b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 Ke2 Kf7 Kf3 Kf6 c4 Ke5 b4 d5 f6 h5 c5 a5 b6 g5 f7 g4+ Kg3 Ke4 f4 e5 f5 d3 f6 d4 b5 a4 c6 a3 b7 a2 b6 d2 c7 d3 Na3 Ne7 Qc2 d1N Be2 Nd7 b8R Rh7 b7 Nf2 Nc4 Ra3 Nh3 Rb3 Re1 Nh1+ Kh4 g3 Nf2+ Kd4 Bd1 d2 Re2 Rg7 Kh3 h4 Ra8 Rh7 b8N Ba6 c8B Qc7 Nd3 Qa7 Rb1 a1N Nb4 Qb7 Qg6 Nc2 Kg4 Na3 Ra1 Nb1 N8c6+ Kc3 N6a5 Qc7 Bb7 Nc8 Bd5 Bd6 f8Q Re7 f7 Kd4 Qe8 Nf6+ Kg5 Qb7 f8Q Nh5 Be6 Qe4 Qgf6 Qh7 Kg4 Kc3 Qc6 Kd4 Bc2 d1B Qfe8 Kc3 Bd2+ Kd4 Be4 Bc2 B4d5 Bg6 Be4 Bf7 Bc2 Rb7 Bd1 Re7 Nb7 Bb5 R8a2 Ba6 Bg5 Kc3 Nba5 Kd4 Bc1 Kc3 Bd2+ Kd4 Nc2+ Kd3 Nb4+
1QQ1b1nR/2b3NK/2B1r2N/2n1R3/1p1Rnppb/qPN1B3/1Q2brP1/k5B1 b - - 0 1 illegal: No proof kernel
1RR1NBB1/rBKb2b1/6Qp/r2pp1p1/qn1kr3/1Q2RnPQ/3P4/1n3NN1 b - - 0 1 illegal: No proof kernel
4b1Q1/1NN1pBBK/R2Q1r2/R1pR4/p1npP3/n1Pr3B/3k1bN1/1q1rQb2 b - - 0 1 illegal: No possible last move
2QbK3/p1pRN3/N1bQ1r1Q/BBp5/P1rq1Nb1/1pq1B3/R1P2R1n/1k3n2 b - - 0 1 illegal: No proof kernel
1R6/R1N1k1Nq/B2N4/1PprP3/3NB1Qq/1r2q3/1n3RnB/r1n3KN b - - 0 1 legal: proof: f4 h5 b4 c5 d4 a5 a4 e5 g4 exf4 gxh5 d5 c4 b5 cxd5 Be7 axb5 a4 d6 Bd7 d5 Bc6 dxc6 Qc8 Kf2 Bd8 Ke1 Ba5 bxa5 Qd8 Kf2 f5 h4 g5 e4 g4 h6 a3 d7+ Kf8 c7 a2 c8B f3 h5 f4 h7 Na6 e5 Kf7 h6 Ke6 Nd2 Ne7 Ne2 g3+ Kg1 g2 Nb3 Nf5 Ng3 Nd6 Rh2 Nb4 a6 Qh4 d8N+ Ke7 a7 Nd3 Nd4 Nc4 Nh1 Ncb2 N8e6 Rd8 h8R Rd5 Ba6 Rad8 Be3 Nc1 a8N Rg8 h7 Rg3 Nac7 Rh3 Rb1 a1R Rb8 Rg3 h8N Rh3 Bd3 Rg3 Rh3 f2+ Kh2 f1Q Be4 f3 Nf7 f2 Bf4 Qh7 Nd6 Rb3 Qg4 Qc4 Ng7 f1N+ Kg1 Ne3 Bh2 Qb4 Rf3 Qe1+ Rf1 Qeh4 Rf3 Q7h5 Bb7 Ra6 Ra1 Qh7 Rf4 Rb6 Raa8 Ra6 Ra7 Ra1 Ba6 Ra4 Bg3 Ra1 Kf2 g1Q+ Kf3 Qd1+ Kf2 Qd3 Kg1 Ng2 Bh2 Qe3+ Rf2
1bN5/nbPr1N2/BQ5b/b1B1K3/4R3/Bp3b1N/1pP3r1/kN2RNR1 b - - 0 1 legal: proof: g4 f5 a4 c5 b4 h5 gxh5 a5 bxc5 Ra6 e4 Qc7 exf5 Qb6 Na3 Qb2 Nb1 Qc3 dxc3 Ra7 Nd2 Na6 Nb1 Nb4 cxb4 axb4 Nc3 Ra5 Nb1 Ra8 Ke2 Kf7 Kd3 Kf6 Kd4 d5 h4 g5 f4 b5 c6 g4 h6 e6 a5 b3 h5 b4 c7 b2 a6 g3 a7 g2 h7 Rb8 a8N Bg7 h6 Bb7 Nb6 Ne7 Nh3 Rhd8 h8N Nc8 h7 Na7 Nc8 Rd7 Ng6 Bh6 h8N g1B+ Be3 Ra8 Ba6 Rb8 Nh4 e5+ Kc5 d4 Ng2 e4 Nf7 Bf2 Re1 Bg1 Bf2 e3 Ra4 e2 Ne3 Ra8 Nf1 Rb8 Qc1 Ra8 Qe3 Rb8 Nb6 Rg8 Nc8 Rg2 Kc4 d3 Kc5 b3 Re4 d2 Kc4 d1B Qb6+ Kg7 f6+ Kg6 Bd4 Kf5 Bc5 Kg4 f5+ Kf3 Nfd6 Bf2 f7 Bfe3 f8R Bf2 Ng3 Bd4 Rg1 e1B f6 Ba5 f7 Bde3 Nf1 Ke2 Ba3 Ke1 Bc5 Bf3 Rfe8 Kd1 f8B Kc1 R8e6 Bef4 Kd4 Be3+ Ke5 Bf2 Nc3 Bfe3 Nf7 Bf2 Ne2+ Kb1 Nc3+ Ka1 Nb1 Rg8 Ba3 Bae1 Rd6 Ba5 Qd4 Nb5 Qc5 Rg2 Rd1 Bfe3 Qb4 Ba7 Rde1 Bb8 Bc5 Na7 Qb6
8/4Bb2/4NPR1/4r1p1/1R1rbNB1/rRNkP2B/2Rp1q1p/1KRq2Q1 b - - 0 1 legal: proof: e4 c5 Ke2 e5 d4 b5 a4 cxd4 axb5 d5 exd5 e4 Ra6 e3 Ra1 Bb4 Kd3 e2 Qd2 Ba5 Qd1 Bd2 g4 Be3 fxe3 f5 Kd2 f4 h3 Ne7 h4 g5 h5 Nf5 gxf5 Nc6 Bg2 Ne5 Bf1 Ng6 hxg6 Bd7 Nc3 Be6 Nb1 Bc8 c4 Kd7 Kc2 Kd6 b4 Ke5 g7 Ke4 g8R e1R f6 a5 d6 h5 d7 h4 c5 h3 b6 h2 b7 f3 b8R f2 b5 a4 b6 a3 b7 a2 c6 Qc7 d8N Ra5 Bh3 f1B Ne2 Ra3 Nf4 Qd7 c7 Bg2 Rg6 Qf5 Nde6 d3+ Kb2 Bd7 c8B Re8 Rg1 Bh1 Rg2 Bc6 Bg4 Bd5 Rc2 d2 Bd7 Rg1 Qf1 Rg3 Qg1 Rh3 Bc8 Rh7 Bh3 Rd7 Bg4 Bb3 Bh3 Rd4 Nc3+ Ke5 Rb1 Be4 Bd7 Re7 Rc8 Bbd5 b8R Bb3 Rb4 Bc4 Ng2 Qf2 Ngf4 Bb3 Ng7 Bf7 Bdg4 Ra8 Nge6 a1Q+ Kb3 Ra2 Ba3 Re8 Rbb2 Qd1 Rb1 Ra1 Kb2 Re7 Rb3 Re8 Bc5 Ra3 Be7 Red8 Rcb8 Bh1 Na4 Ke4 Rbc1 R8d5 R8b4 Re5 Kb1 Bf3 Nh5 Bg2 Nc3+ Kd3 Bf3 Bh1 Bfg4 Be4 Nhf4+
B2r2B1/1q2R1r1/2N1B3/PrR1N1n1/6KQ/5NP1/b2B1knR/Brbbq3 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 Ke2 Kd7 Kf3 h5 a4 e5 g6 b5 g3 h4 f6 h3 a5 e4+ Kg4 b3 f4 b2 f7 h2 g7 e3 d6 Kc6+ f5 b4 d7 e2 f6 e1Q Be2 b3 Qc2 Kd5 c6 Kd4 c7 Rh5 Nh3 Na6 Ng1 Ba3 f8R Ne7 g8B Nf5 f7 Nh4 Re8 Nc5 f8B Ng2 Bd2 Ne6 Re7 Rb5 Qh7 Ng5 Bf3 Bb7 c8B Qc7 d8N Rb8 Nc3 b1R Na2 Bc1 Bce6 b2 Nf7 Rd8 Ne5 Bc8 Be4 Qb7 Nb4 Bd7 Ra2 Be8 Qh4 Bh5+ Kf5 Bd1 Bg7 Ra1 Bh8 b1B Rc2 Ba2 Rc5 Rb1 Bf3+ Ne4 Kg4 Ng5 Bc3+ Ke3 Nbc6 Kf2 Bd2 Ba4 Be4 B4b3 Ngf3 Bd1 Rg1 h1R Bf6 Rh2 Rh1 Rh3 Rh2 Nf7 Qg5 Rh7 Qh4 Ng5 Nb8 Qc8 Ba8 Qb7 Nbc6 Rf7 Ng6 Rh7 Ba1 Rg7 Nge5
kNB1rb1N/4q1n1/nP4R1/1N5q/2Nr2r1/2nB2BN/1R2rP2/r2QR1K1 b - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 a5 e4 f5 exf5 g5 a4 Bd7 axb5 gxh4 b6 a4 b3 a3 Ne2 Ba4 bxa4 Qd6 Ng1 Qd8 d4 Kd7 g4 Kc8 f6 Kb7 d6 c5 d7 e5 a5 h5 g5 e4 d5 e3 d6 a2 f7 c4 g6 h3 a6+ Kc6 g7 e2 a7 Kb7 Nc3 h4 Nb5 c3 Rb1 a1R Rb2 c2 Bf4 c1N Bg3 h2 Nh3 Nh6 g8R Nf5 Rg6 Qe7 Rg1 h1Q d8N+ Kc8 Nc6 Kb7 d7 Rg8 Ne5 Na6 Nc4 Re8 d8N+ Ka8 Nc6 Ng7 Nb8 Na2 Kd2 e1R Bd3 Re4 Rf1 Rd4 Re1 Ne6 Ke2 Ng7+ Ne3 Qh2 Kf1 Nc3 Nc4 Ra2 Nf4 Qh3+ Kg1 Qf5 Nh3 Qh5 Rb1 Re2 Rb2 Nf5 Rc6 Rgg4 Rg6 Bg7 f8N Bh6 Nfd7 Bf8 Nde5 Ng7 Nf7 Qh8 Nhg5 Qh5 Nh8 h3 Kh1 h2 Nh3 Kb7 Kg2 h1R a8B+ Kc8 Bae4 Rf1 Bf5+ Kb7 Bc8+ Ka8 Rb1 Ra2 Rb2 Ra1 Re4 Re1 Kh2 Re2 Kg1 Rd2 Re1 Rc2 Kf1 Re2 Kg1
1R1b3q/1N3KB1/4r1nR/1BPPNBr1/1N1Qq3/1Nk5/r4N2/2nrrrR1 b - - 0 1 illegal: No possible last move
3NKN1q/P1R2QBn/2n1Rrp1/7N/1n3P2/B1B1r1b1/1qN1R3/1k1r2bN b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 h5 bxa5 f5 g4 f4 Bh3 f3 exf3 Bf5 gxf5 Qd6 Bg4 hxg4 f4 Qd7 f3 Qd8 h4 Kd7 Qb3 Kd6 Kf2 Kc5 Kg3 Kd4 a4 e5 d6 Be7 h5 c5 a6 b5 a5 c4 f6 c3 f5 Kd3 Kh4 b4 Kg5 e4 Kg6 e3 Kf7 g3 d7 g2 h6 e2 f4 e1Q h7 g6 Ra2 Bd6 Na3 Bc5 Nh3 g1R Nf2+ Ke2 d4+ c2 d5 Rg4 d6 Qb6 Ke8 Qg1 f7 Qh2 f8B Rg3 f6 Nc6+ d8R Rg1 Rc8 Rd1 f7 Qh4 Bb2 Kd2 d7 c1B d8N Qh6 Qc4 b3 Bbg7+ b2 Re1 Qb3 Nh1 Bf2 Re7 Bg3 Qe6 Qh3 Qf6 Qc2 Rcc7 b1N Re6 Qh4 Bc5 Nc3 Qe7 Nd5 Rb2 Bf2 Qf6 Rb8 Qf5 Rb5 f8N Qh6 Qf7 Bh4 Rb3 Qb2 Nc2 Qh5 Ba3 Ndb4 Rbe3 Rf5 a7 Be1 a8N Bf2 Qe7 Nf6+ Kf7 Bh4 a6 Be1 a7 Re5 Nd7 Bg3 Nab6 Qh4 Re2+ Kd3 Na1 Be3 Nd5 Bg1 Qe8 Re3 Qg8 Ne4 Ke8 Ng5 Bc3 Qh6 N5f6 Qg7 Qf8 Rg8 h8B Nh7 Nh5 Qd4 Nb7 Rg7 Qf6 Rf7 Nd8 Qe5 Qe7 Qg7 Nf8 Rf6 Qf7 Qg8 Bg7 Qh8 Rg2 Qf2 Nb3 Kc2 Nd4+ Kb1 Rh2 Qc2 Re2 Qb2 Nc2
1Nb1kq2/NPrN1BpP/1b1b3b/1R5Q/K6N/5q2/2nNRB1b/2n2R1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 a5 d4 f5 Kd2 c5 Kc3 f4 Kb3 c4+ Ka4 f3 e4 f2 b4 c3 b6 g3 b7 c2 b5 g2 b6 Qd6 e6 Nf6 e7 Ng8 h5 Kd7 e8R Ra7 h6 Be7 h7 Qe5 d6 Nh6 d5 Qb2 e5 Ng4 Bc4 f1Q Nf3 g1B Nbd2 Bh2 Nh4 Nf6 Rb1 Qf2 Qh5 Qg2 Rf1 Qf3 Ba2 Qbc3 Rb5 Na6 Bb2 Qc7 Bd4 c1B Bf2 Ng4 Bc4 Bd8 Re6 Be7 b8N+ Kd8 d7 Ne3 Bb3 Qd6 Ba2 Rc7 b7 Bf8 Re7 Nc2 e6 Nab4 Bb3 Na2 Bc4 Rc6 Re8+ Kc7 d8N Qc5 Bb3 Bfd6 e7 Rf8 Nd7 Rf7 Bc4 Qce3 Bb3 Qef4+ Bc4 Rc5 Nc6 Qf5 Na7 Qf6 Nb3 Bh6 Nd2 Q6f5 Rg8 Qf6 e8B Kd8 Rf8 Qe7 Re1 Nc1 Re2 Rc7 Ba2 Bc5 d6 Bb6 Be6 Qef6 Nc5 Qe7 Bc6+ Qe8 d7 Bd6 Rg8 Qf8 Rh8 Ke7 d8N Bh2 Be4 Ke8 Ndc6 Bd6 Nb8 Bh2 Rb4 Bd6 Ncd7 Bh2 Kb5 a4 B4d5 a3 Ka4 a2 Rb5 a1B Bc6 Kd8 Be4 Bae5 Rg8 Qe8 Rf8 Bd6 B4d5 Rf5 Rf7 Qf8 Bc6 Ke8 Be4 Qc3 Bh1 Qf3 Be3 Qd5 Bc5 Rg5 Rf4+ Rg6 Rf1 Qdf3 Qf5 Rf6 Bf2 Rf7 Qg5 Qe7 Qh5 Qf8 Bxf7+
4R1Q1/1K2B1bP/1Nr1N3/5Nq1/4bR1B/N2q1NP1/1k1R2Bp/brr1bb2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 h4 Nh3 g5 Nf2 Nh6 Ra6 Nf5 Rd6 Nd7 Ra6 Nf6 Ra1 Nh5 gxh5 g4 Nh3 g3 Ng1 g2 Qc2 Qd7 Qd1 Ng3 hxg3 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kc4 d4 a5 h6 c5 d6 f3 d5 h3 d7 f2 d6 a4 b6 h2 b5 a3 h7 f6 b7 a2 b8R Qa5 d8N Bb7+ Qd5+ Kb4 b6 c4 d7 Kb3 Na3 Qe1 Bg5 Bh6 Ne6 Bc8 d8B Kb2 b7 c3 Nf3 g1B Rd1 a1B Bg2 f1B Bh4 c2 Be7 Qa5 Rd2 Bg7 e3 Bd7 Re8 Bc6 b8N Bf2 Nd7 Rc8 Nb6 Be1 Kd4 Rf8 e4 f5+ e5 f4 Qc4 Qb5 Qd5 Qd3+ Kc5 Rf6 Kd6 Rb8 Kc7 Qg6 Rg1 Qg5 Qc4 Be4 Qd5 Rc8+ Kb7 Rc6 Rh1 Bfd3 Rf1 Rh6 Rff2 Bf1 Nc7 Rhd6 Qg8 Rd3 e6 Rb3 Bd8 Rb4 e7 Rb5 Ne6 Rb3 Rf8 Rb5 e8N Rb4 Ng1 f3 Nd6 Rb3 Rfe2 f2 Nf3 Rb5 Rf4 Rb4 Rd4 Rb5 Re3 c1R Nf5 Bd5 Nc4+ Ka2 Nce5 Bd3 Nc4 f1Q Nc5 Rbb1 Na3 Kb2 Re8 B5e4 Be7 Qe2 Rd7 Qd2 Rd4 Bf1 Ne6 Qe2 Rd1 Qd3 Rd2+
8/2BR2qr/R2pNq2/1rbq4/1Pr1bQ1R/1N1NR3/k1B1KbP1/3B2qR b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 g5 h4 b5 axb5 Bh6 hxg5 Bg7 e5 Bf8 f4 d6 Rh3 Kd7 e6+ Kc7 Rh1 Nd7 Nh3 Kb6 exd7 Kc5 Ng1 Kd5 Qf3+ Ke6 Qh5 Rb8 Qd1 Ra8 Rh5 Nf6 Rh6 Kf5 Qh5 e5 Qd1 Ke6 Rh3 e4 Rh1 Ke7 Rh5 Ng4 Rh1 Ne5 fxe5 Qb6 Qh5 Qc7 Qd1 Qd8 b4 Ke6 c4 a5 g6 h5 b6 f5 c5 Kd5 b7 e3 b8N f4 e6 a4 c6 f3 c7 e2 g7 Kc4 g8R h4 e7 f2+ Kd2 h3 e8R h2 Qe1 Kb3 Re7 a3 Rg4 a2 Re3+ d3 Rh4 Bg7 Na6 Rb8 Nf3 Bb7 c8B Be4 Nc7 Qf6 d8R Rh7 Bg4 Rb5 Ne5 Bh8 Bb2 Qg7 Qc1 e1B+ Kd1 Qf6 Bc3 d2 Bd3 f1R Bd4 Rf4 Ne6 Bf2 Bb6 Bg7 Ke2 Bh8 Rf1 h1Q Bc7 Qg1 Rd7 Bg7 Bh5 Bh6 Qc4+ Kb2 Bc2 Rg4 Ra3 Bhe3 Rd1 Bc5 Re3 Bb7 Qf4 Be4 Nc3 Ka3 Nd3 Qg7 Na4 Qf6 Rab1 a1Q Rb3+ Ka2 Rf1 Qh2 Rh1 Qhg1 Rc3 Qg7 Rb3 Qaf6 Rc3 Bb6 Rc6 Bc5 Ra6 Ba8 Qe5 Rc4 Qf4 Be4 Rc6 Ba7 Nac5 Bb6 Nb3 Bc5 Bf3 Bd5 Ra6+ Ra5 Nb2 Bc6 Kd3 d1Q+ Nd2 Bb7 Bg4 Qf3 Nb3 Qe4+ Kd2 Qef5 Nd3 Be4 Bgd1 Qd5 Rc6 Rb5 Ke2 Qfg5 Rb6 Q5f6 Ra6+
1N1Kb2R/N3NR1q/4BN1n/1rbR2r1/4pB2/5B1n/PpnP2Q1/N2b2k1 b - - 0 1 legal: proof: e4 d5 b4 a5 g4 axb4 c4 f5 cxd5 h5 exf5 c6 dxc6 Rh7 gxh5 Rh8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 f4 b5 c7 g5 h6 b3 f6 b2 f7 b4 h7 b3 f5 g4 f6 g3 Qe2 e6 Nf3+ Kg4 h4 g2 h5 Kg3 h6 g1N Rh5 Qd7 Bg2 Na6 Nc3 b1B Bb2 Be7 f8N Bd8 f7 Bh4 Nb5 Nb4 Na7 Qe8 Kd6 e5 Nd7 e4 f8N Bc2 Rf1 Nd3 Rd5 Rb8 Nd4 Kh2 Bf3+ Bf2 Nf6 Qd8+ N8d7 Bb7 c8B Qe7+ Kc7 Bd1 Nc2 Bc6 Na1 Ne1 Bc3 Qg7 Kd8 Rb5 Nb8 b2 Be6 Nh3 Bb4 Be8 Bd6+ Qg3 Bf4 Nc2 Qd3 Bc5 Qe3 Ne7 Rf2+ Kg1 Qe2 Rf8 h8N Qg7 h7 Rg8 Ng6 Nf5 h8R Qh7 Ne7 Rg5 Rh2 Nh6 Rf8 Ng8 Rf7 Nf2 Rh5 Nh3 Rh6 Qg7 Rh7 Nh6 Rh8 Qh7 Qg2+
2BR1BBK/2pPBN2/8/6r1/2n1p1q1/RB2Nq1R/1k1PQ3/rrb1Nnb1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 f6 a5 g6 h5 g5 a4 g7 h4 g6 h3 d6 f3 b6 h2 d7 a3 f7 f2 b7 a2 Nc3 e6 Nd5+ Ka5 Ne3 Kb4 Ba6 f1Q Nf3 Qe8 Qe2 Kb3 Ne1 Nf6 g8B Nh5 g7 Ba3 f8B Qg6 Bf7 Qfg2 g8B Q6g4 Be7 Ng3 Kf6 Nc6 b8N Rh5 Bc8 Na5 Nc6 Rd5 Nd8 e5 Be6 e4 Nf7 Q4f3+ Kg7 Nc4 Kh8 Rg5 Bf8 Nf1 Be7 Ka4 b4 Kb3 b5 Qgg4 b6 Bc5 b7 Bb6 N3c2 Bg1 Bca3 Rb8 Bab4 Kb2 Ne3 Ra8 b8R Ra6 Rc1 a1B Rc3 Nd6 Qg2 Ng3 Nd3+ Kb1 Bd8 Bb2 Qe2 Ra1 Bb7 Ba3 Rb3+ Ka2 Bf6 Bf2 Rd8 Bb2 Bc8 Ba3 Rg1 Bb2 Rg2 h1R+ Rh2 Rhb1 Rh3 Bc1 Ne1 Nf1 Rc3+ Kb2 Ra3+ Re5 Ba2 Bg1 Bb3 Nc4 Bg5 Rd5 Bf8 Rf5 Bge7 Rh5+ Bh6 Rg5 Bhf8
3K1Bb1/4n1N1/BB3pN1/7B/pr1P3q/1PBbq2R/k3b2R/NR2rQ1q b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Ba3 g5 Bf8 Nh3 Nd7 Ng1 f6 g6 Ne5 Qc2 Kd7 Qd1 Nf7 gxf7 Qe8 Nh3 Qe7 Ng1 Qd8 h4 g5 Qa4 g4 Qc2 Bh6 Qd1 Bg5 hxg5 Kd6 Rh2 Ke7 Rh1 Kd7 Kf2 Kd6 f8B+ Ke5 d4+ Ke4 g6 h5 b6 a5 d6 Kd5 e4+ Kc6 d7 f3 Kg3 a4 Kf4 f2 Kf5 h4 Ke6 g3 g7 h3 b7 h2 b8R g2 e5 Ba6 b3 Be2 Bd2 Ne7 Nh3 g1Q g8B Qe8 d8B Qh5 Bf7 Qh4 Rb5 Rb8 Nf4 Rb6 Ra5 Rb4 Bh5 Rh7 Ra7 Kb5 Kd7 c5 e6 c4 Bb6 c3 Ng6 c2 Bc3 c1Q Kd8 Qe3 Rc7 Bd3 Bfe2 f1B Na3+ Ka6 Nc2 Kb5 Rb1 Rf7 Bef3 Bfe2 Na1 Qg2 Bb7 Qgh3 Rf1 h1B Rf2 Bd5 Qf1 Qh1 Rh2 Rg7 Nh8 Rg1 Ng6 Ng8 Rh7 Ne7 Qh3 Re1 Qf1 Nc8 e7 Bg8 e8N Ne7 Bb2 Rc4 Rh8 Kb4 Bc3+ Ka3 Ng7 Rb4 Ba6 Ka2 Bg4 Qhg5 R8h3 Qh4 Bh5
3r1R1K/1QBRP1N1/b7/2k1rR2/2B1Nr1R/P1p1B3/Rrpbr1n1/1qN5 b - - 0 1 illegal: No possible last move
1K2BbN1/1bB5/4N2p/1P4rp/rPNb2k1/1r1R2R1/3N2Nq/1BnQ1R1b b - - 0 1 legal: proof: c4 b5 h4 e5 a4 c5 axb5 d5 cxd5 e4 d4 c4 h5 g6 f3 gxh5 fxe4 Nd7 e5 Nc5 dxc5 Ke7 Nd2 Kd7 Nb1 Ke8 Kd2 Ke7 Ke3 f5 Kf4 a5 b4 c3 g4 c2 e4 h6 d6+ Ke6 d7 a4 c6 a3 g5 a2 c7 Be7 g6 Ra3 g7 Rd3 Nf3 Rc3 Nbd2 Ba6 c8N Qb6 d8R Qd4 Ne1 Rc5 Nd6 Qg1 N6c4 Bb7 Rh3 Nf6 g8N Bf8 Ng2 Nd7 Bd3 Qh2+ Rg3 Rh7 Bb2 c1B Bb1 Re7 Bd4 Rd5 Bb6 Nc5 Bc7 Nb3 Rd7 Rc5 Rd3 Bb2 Rf3 Bd4 Rd3 Qg1 Rge3 Nc1 Rf3 Kf7 e6+ Kg6 e5 Re8 Kg3 Kg5 e7 Ra8 e8N Ra3 e6 Rb3 e7 f4+ Kh3 Rd5 Ng7 Qf2 Kh2 Kg4 e8B Rc5 Ne6 Rg5 Bc2 Ne2 Rc1 a1R Bb1 Ra5 Qc2 Ra4 Rf1 Nc1 Qd1 Rd5 Rh3+ f3 Rg3+ Kf5 Rh3 Qg1+ Kg3 f2 Kf3 Qh2 Rg3 Be5 Ke3 Bb2 Rf3+ Kg4 Ke4 Rg5+ Rd5 Bc8 Rdd3 Be5 Kd5 Bd4+ Kc6 Ba6 Rg1 f1B Kd7 Be2 Rgf1 Bb7 Kd8 Be4 Kc8 Bc6 Rg1 Bb7+ Kb8 Bf1 Nh4+ Bg2 Rgf1 Bh1 Ng2 Qg3 Ng7 Qf4 Ne6 Qh2 Rg3#
N2RRK1R/1br3p1/3r4/B1P1PQ2/1rB1Rn1p/2R2Nb1/1k2q3/BNrb4 b - - 0 1 illegal: No possible last move
3R1qQb/n6p/2BqN3/2NbNr2/b1B2Ppq/2P1R1N1/Nbk2K2/2B2R2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 e4 cxd4 h4 g4 f3 Ra6 f4 Rf6 e5 Nc6 exf6 Ne5 Ra4 Nf7 Ra1 Ng5 hxg5 Bh6 Nd2 Bg7 Nb1 Bf8 b4 Kf7 b6 e5 b7 d5 b8R a4 b5 a3 b6 e4 b7 a2 c3 e3 Bg2 d3 Na3 d4 Nc4 e2 Qb3 d2+ Kf2 d1B Rh3 d3 Bc6 d2 Re3 Ne7 Ra8 Bd7 b8N Be6 Na6 Bd5 Nb4 Nc8 Rb8 Bg7 g6+ Kf8 f7 Na7 Ne5 Ke7 f8N Kd6 f6 Kc5 Rb1 a1B f7 Bb2 Na2 Bc2 Rc8 d1Q Ra8 Bf6 g7 Qd2 Qb8 Ba4 g8B Qd3 Qc8 Qf5 Qe6 Qd6 Rd8 Bg7 Nd3+ Kc4 Ne5+ Kb3 Nfd7 Qf6 f8N Kc2 Nc5 Qh6 Bf7 Rg8 Qe8 Bh8 Nfe6 Rg5 Qg8 Qdf8 Nh3 Rf5 Nhg5 Qd6 Nge4 Qhf8 Ng3 Kd1 Bd2+ Kc2 Rf1 e1Q+ Kg1 Qd1 Bc1 Qde7 Kf2 Qh4 Bb5 Qd4 Bfe8 Qb4 Bc4 Qb8 Bd7 Qbd6 Bc6
KN1r3B/2B3N1/2N1R1qR/5q1q/p1k4r/BQ2p1PB/1Rqb2P1/5bBb b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 g5 a4 gxf4 axb5 Bg4 d4 Nh6 e4 Nc6 d6 Bc8 e5 Nf5 d5 Ng3 hxg3 Bh6 Rh5 Kf8 Rh3 Kg7 Rh1 Nb8 e6 Nd7 exd7 Kf6 Kf2 Bg7 Ke1 Bf8 Ke2 Ke5 Kd3 h5 Kc4 f5 Kc5 a5 Kc6 h4 b4 a4 b6 e6 b5 f3 b7 h3 b8N f4 b6 f2 b7 h2 Nc3 f3 Ba6 f1Q Nce2 f2 Nf3+ Ke4 Nh4 e5 Nf5 Qe8 Ned4 Rh3 Qb3 Rh5 Ng7 Qd1 Ba3 Qg6 d8B f1Q Bf6 Rh4 d7 Bb4 d8B Qdh5 d6 Bd2 d7 Qff5 Bd3+ Ke3 Bde7 e4 d8B Be6 Bec5 Bc4 Ra2 Ba6 Rb2 Bc4 Be2+ Bd3 Re1 h1B Bg4+ Kf2 Rc1 Bf1 Rc4 Ke1 Bh3 Kf2 Rb4 Ke1 Rb6 Kf2 Nf3+ Ke2 Bg1 e3 Ne5 Qhh7 Kb5 c5 Kc6 c4 Bc7 c3 Ra6 c2 Kb6 c1Q Nec6 Qg8 Nd4+ Ke1 Nd7 Q8f7 b8R Qfh5 Kb7 Qd3 Ngf5 Qg8 Bh8 Qcc2 Rh6 Qgg6 Re8 Rd8 Ng7 Qdf5 Re6 Kd1 Nc6 Ke2 Qa2 Kd3 Ndb8 Kc3 Ka8 Kd3 Qd5+ Kc3 Qa5+ Kd3 Qb6 Kc4 Qb3+
nr1RNnb1/N5p1/k2PrN2/2P3Bp/2q1pK1Q/N1r1B3/R6N/1b2R1B1 b - - 0 1 illegal: No proof kernel
k1K5/N2N1B1b/nR3b1n/7P/BppR2n1/Pp2R3/1R1R4/rQN1Bb1q b - - 0 1 legal: proof: c4 b5 g4 h5 h4 g5 e4 d5 cxd5 f5 exf5 a5 b4 axb4 hxg5 h4 Qe2 Rh5 gxh5 Ra6 Qf3 Rh6 Qd1 Rh8 Ke2 Kd7 Kd3 e5 Ke4 c5 f4 Kc7 d4 Kb7 a3 b3 f6 b4 d6 h3 Kd5 e4 g6 e3 d7 h2 Ke6 e2 f5 e1N f7 Qa5 d5 Nd3 d6 Qa6 g7 Be7 f8N Ne1 f6 Qb6 f7 Bf6 Bb5 c4 Ba4 Qb5 Bd2 Na6 Ra2 Bg5 Rb2 Ka8 Nc3 Rh7 Nge2 Bf6 Nc1 Nc2 Be1 Qb8 Nb5 Na1 Na7 Bb7 d8R Rh8 Kd7 Nh6 g8B Be4 Qc2 Bh7 Qb1 Nc2 Rf1 h1B Rf3 Bd4 Rd3 Bf3 Re8 Bg7 Rd2 Be2 Re3 Qb7+ Kd8 Qe4 d7 Bf1 Kc8 Bf6 d8R Qd5 Nd7 Qh1 Red3 Ne3 f8R Neg4 Bf7 Rg8 Re3 Rg5 Rfe8 Rf5 R8e6 Rf2 Rd4 Rd2 Rb6 Rd1 Rg2 Rd2 Rh2 Ra2 Rb2 Ra1 Rg8 Nf2 Rg2 Nfg4 Rgd2
R2N4/5bB1/1Bp4p/1p3R1R/Pkr2RqR/5PBn/1N1NK3/1r1rn1qQ b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 h4 a3 h5 g6 bxa3 Qd7 a4 Qd6 a5 Qd8 g4 Bh6 g5 Kd7 Be2 Bg7 h6 Nc6 hxg7 Nf6 g8N Nb8 Bh5 gxh5 g6 Ke8 g7 Be6 Nc3 Bd7 Nb1 Bc8 d4 Kd7 a4 Kd6 a6 b5 a7 e5 f3 h6 Ne2 h4 Bf4 h3 Nd2 h2 Bg3 Rh7 Ne7 Ne8 g8R Nf6 Rf8 Rh8 Nc1 Na6 Ke2 Qd7 Nd3 Nb4 Nb2 Nd3 Nc6 Ne4 f6 Ng5 f7 Qg4 Nd8 Be6 Qc1 Rc8 a8R Ne1 Ra2 Kd7 d6 e4 d5 e3 Qd1 Rg8 Ra1 c6 Rc1 Nh3 Rc4 Rg5 Rf4 Re5 Qc1 Re4 Qb1 Rb8 Qd1 Rc4 Qb1 Kc8 d7+ Kc7 d6+ Kb6 Nb7 Ng2 d8R Bd7 Kd1 Qh5 Rd4 Be8 d7 Nhf4 Ne4 e2+ Kd2 e1R Rd5 Qh4 Rh5 Rg1 Qd1 Qg4 Qb1 Nd3 Ke2 Nf2 Rc8 Rgc1 Rc7 Rf1 d8B Rc8 Rd7+ Rc7 Rd4 Rg1 Bf6 Rd7 Bg7 Rf1 Nd8 Rd6 Qd3 Rb1 Qd1 Rd7 Qg1 Ne1 Rdd5 Rd6 Rde5 Rdd1 Nd2 Bd7 Re4 Be6 Rf4 Bd5 Qf1 Kc5 Bd4+ Kb4 Bb6 Ng2 Rh8 Ne1 f8B+ Kc3 Bg7+ Kb4 Re8 Bg8 Ree5 Bf7 Rg1 h1Q Ref5 Qh2 Rh1 Qg2 R1h4 Nh3+ Bbf2 Qh2 Qh1 Qg1 Bb6
2br1N2/3n2p1/r2R4/Brqpn1kB/1RR1RB2/2N3KP/1NR2pP1/q6Q b - - 0 1 legal: proof: d4 b5 f4 h5 a4 c5 axb5 cxd4 Qd3 e5 fxe5 Qb6 Qh3 Qc7 Qxh5 Qb6 Qh7 Qd8 Kf2 Ke7 c4 f5 b4 a5 e4 d5 e6 Kf6 e5+ Ke7 c5 d3 c6 a4 b6 a3 b5 a2 c7 d2 b7 d1R b6 f4 Na3 f3 Be2 Ra5 Nc4 Qd6 Kg3 f2 Bh5 Qb4 Rb1 a1Q Nb2 Qd4 Ne2 Qe4 Nc3 Na6 b8B Bd7 c8R Nh6 b7 Bb5 Rc4 Nf7 Bc7 Qe1 b8N Qe4 Nd7 Ra3 Ba5 Nc5 Re1 Ra4 Re2 Ba6 Rc2 Qd4 h3 Ra2 Qe4 Ra3 Qe1 Bc8 Qh1 Ra2 Nba4 Ra3 Rbb4 Rg1 Nb2 Rb3 Nf6 Nd7 Nh7 Qc5 Na4 Ke8 Nb2 Bd6 e7 Re1 Nf8 Rh6 Ra4 Rb5 Rab4 Bb8 Rg4 Ra6 Rg6 Nh8 Rd6+ Ng6 Rc4 Kf7 e8R Re4 e6+ Kf6 e7+ Kf5 Rd8 Nge5 e8R Rf4 Rb4 Kg5 Re7 Nf3 Ree4 Nfe5 Rd2 Rf6 Re8 Rh6 Rec4 Rh8 Re7 Nf7 Ree4 Nfe5 Ng6 Rd8 Nf8 Bc7 Rc2+ Qe3+ Bf3 Bb6 Re2 Ba7 Rd2 Qb6 Be2 Qc6 Bf3 Be3 Rc2 Qc5 Bh5 Bf4+ Bxf4+
2r4R/1PqR2pR/1B1p3R/1K4N1/P2pR1q1/r2n1B2/1nnk1r1N/1B4NQ b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Qb6 a5 Qd8 b3 e6 Qe2 b4 Bh6 Bc5 Bg2 Ba6 Bf4 Bb5 Bf1 Bb6 axb6 a5 Qd1 a4 Bh6 a3 Bc1 Ba4 bxa4 Ra5 Bh6 Ra7 Bc1 Ra8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 f4 a2 b7 b3 h6 b2 h5 e5 h7 Nc6 f6 Qc7 h6 Qb8 f5 Qc7 f7 Qc8 f8N Qd8 f6 Na7 f7 Nc8 Ne6 Qf6 f8R Qe7 Kb5 Qd6 c4 Nb6 c5 Nc4 c6 Rc8 c7 Ne7 Rd8 Ng6 Be3 Nf4 Be2 Rf8 h8R Nd3 h7 Rf2 Rh6 Qe7 Rhe8 Qg5 h8R Qg4 Na3 b1N Nc2 Ncb2 Ne1 Na3+ Ka5 Rf8 Nef3 Nc2 Nh2 Rf2 Rc1 a1R Kb5 Ra3 Ng5+ Kf5 Bf3 e4 Bf4 e3 Re4 e2 Bd2 e1Q Ba5 d6 Rd7 Ra2 Bb6 Qc3 Qf1 Ra3 Qh3 Re8 c8B Qc7 Qg2 Rd8 Qh1 Re8 Rce1 Rd8 R6h7 Rf8 Re6 Kf4 Reh6 Re8 Rd1 Ke3 Re1+ Kd2 Re4 Kc3 Rde7 Rf8 Bf5 Kd2 Rd7 Rc8 Be6 Na1 Ba2 Nc2 Bb1
2K1B1Bq/3r4/1ppbPP1p/Bb3NN1/1NRb1k2/br4q1/6R1/2B1BR1Q b - - 0 1 illegal: No possible last move
QN5K/5pPB/1q2B1pp/1R1b2pB/4qq2/3RBR1P/1Nk1BpN1/2r2n2 b - - 0 1 illegal: Other
8/nB1Qq2P/bRP5/1Nr2Rr1/1Rk1r1N1/R1B1bRn1/b2b4/2NK1nBb b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 d5 c4 g5 b4 e5 h6 a5 b6 e4 b7 d3 h7 a4 f6 Ke6 h5 d4 f7 g4 b5 d2+ Ke2 d3+ Ke3 a3 h6 g3 b6 g2 c5 Kd5 f5 a2 f6 Nc6 b8N Ra5 b7 Nge7 Nc3+ Kc4 Rb1 a1N Rh3 Rg8 h8B Nb3 h7 Na7 c6 Rgg5 Nb5 Bh6 f8R Nf5+ Kf2 Qd6 f7 Qe7 Nd7 Ng3 b8R Ba6 Nf6 e3+ Kf3 e2 Ng4 e1B Ne2 g1R Bc3 Bf2 Rb7 Be3 Rb6 Re5 Ba3 Re4 Nc1 Bhg5 Bc5 Bh6 Qc2 d1B+ Be2 Bhg5 Qd2 Bc2 Rb2 Bb1 Ra8 Rg2 f8R Ba2 Rf5 Bh6 Qd1 Bd2 Bg1 Bhe3 Nc7 Rc5 Nb5 Na1 Rb3 Nc2 Ra3 Bf4 Rab8 Ne3 Rh6 Nef1 Rhf6 Rh2 Rf7 Rh5 Kf2 Bde3+ Ke1 Rg5 Qd2 Qe6 Kd1 Qe7 Qe1 Bd2 Qf2 Bfe3 Qf4 Rg8 Qc7 Rg5 Qd7 Rg8 Nc7 Rd4 Ne8 Bc8 Rb2 Rg5 Nc7 Be1 Rf2 Rf4 Rf5 Bb7 Bf3 d2 Rb1 Re4 Bb2 Kb4 Be2 Rc2 R2f3 Rc5 Bb5 Bc8 Ba6+ Bb7 Re8 Bc8 Nb5 Kc4 Bc3 Bb7 Rb8 Bc8 Rb6 Bb7 Kc2 Bc8 Rf2 d1B+ Kb2 Bf3 Kc2 Bg2 R2f3 B1d2 Kd1 Bh1 Rb2 Bb7 Rbb3 Ba8 Bc8 Bb7 Rb1 Ba6 Bb7 Bg2 Rb2 Bh1 Rb4#
2qrb3/8/1R2nqq1/KNbb3N/PN1B2Q1/qB2n1Pq/R1NB3N/2rk2R1 b - - 0 1 illegal: No possible last move
NRB3R1/N6N/qq1Pbr1b/n4RB1/K1k5/3rrP2/2Bn1Q2/2rq1RRr b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 h5 Kd2 a5 Kc3 e5 Kb3 c5 f6 c4+ Ka4 e4 f3 h3 b6 h2 b7 e3 b5 c3 g5 h4 b6 h3 g6 c2 g7 e2 f7 e1R Qd2 Rd1 Qf2 Bg4 Na3 Qf6 Bd3 Qd8 Bg5 c1R Bc2 Nf6 g8B Bh6 f8R Rd3 Be6 Nc6 b8N Ne4 b7 Ra6 Bc8 Qb6 Nd7 Nd2 b8R Be6 Rf5 Re8 Rb1 Bg8 Ra1 Ree3 Rb1 Be6 Ra1 Qb2 Nb6 Qb1 Na8 Qb2 Ne2 Qb6 Rf1 h1Q Ng3 h2 Nh5 Qg1 Nf6 h1R Re1 Qf1 Nh7 Qe2 Rf1 Qd1 Re1 Ra7 Rf1 Rf7 Nb1 Rf6 Nc3 Ke7 d6+ Kf7 Ka3 a4 d7 Na5 d8R Ke7 Re8+ Kd6 d5 Kc5 d6+ Kd4 Rg8 Kc4 Ka2 a3 Nb5 Qa6 Rb1 Qb6 Na7 Qc6 Ka1 a2 Kb2 Qb6+ Bb3+ Kd4 Ka3 Kc3 Ka4 Kd4 Bc2 Kc4 Rb3 a1Q+ Ra3 Qad4 Rb3 Qa6 R3b7 Qb2 Rbg7 Qbb7 Bf4 Qb1 Rgg1 Qbb6 Bg5
2BR2Nb/2R3P1/1n2B3/1b2qn2/RnNn1n2/1PNk1Rqr/1r1q1BQ1/KR6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 Kd6 Kc3 a5 g4 h5 e4 f5 g6 c5 b6 h4 g5 a4 b3 h3 Kb2 c4 b7 c3+ Ka2 a3 g7 f3 g6 c2 Qe2 f2 Nf3 f4 Bb2 h2 Nfd2 f3 Bh3 f1Q Qg2 Nh6 g8B f2 Bd7 Bg7 Bf7 Qe1 Rf1 Nc6 b8R h1Q Rb4 Ba6 Bc8 Qh3 Bc1 Qf3 Nc3 Nf5 Rb1 Qg3 Rc4 Rh3 e5+ Ke7 e6 Kd6 e7 Bb5 e8R Qee5 Re7 Bh8 g7 Ra7 Rc7 Qdg5 Re1 f1N Bfe6 N1e3 Rf1 Qd8 Rb4 Nc4 Rf3 Nb6 Rc4 Nce7 Rb4 Ng6 Rbc4 Nf4 Rb4 Qd7 Nc4+ Ke7 Be3 c1N+ Ka1 a2 Kb2 a1N Bf2 Na2 d6+ Kf6 d5 Nh4 Bg1 Qd8 d7 Nc2 d6 Ra3 Ra4 Nab4 Bf2 Ra1 Rh1 Rd1 Rg1 Rd2 Rb1 Kg6 Bg8 Kf5 Bd5 Nd4+ Ka1 Rb2 Bf7 Ne6 Bg8 Qf8 d8N Qf7 Nc6 Qd7 Nd1 Ke4 Ne7 Qd8 d7 Nf5 Bf7 Qf8 Ng8 Qfd6 d8R Qd2 Na3 Ned4 Bfe6 Qd6 Nc4 Qe5 Nce3 Kd3 Nc3 Qe1 Rca7 Qc1 Rc7 Qd2 Nc4+
2NKb1N1/b7/2NNq1n1/BQbbrN1B/3q1k2/rP2RP2/RqBR4/n4n2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 h5 d4 a5 b3 c4 d6 h3 b6 h4 d7 h2 g5+ Kg7 Ke5 c3 Ke6 c2 d5 h3 d6 a4 f6+ Kg6 b7 a3 f7 a2 f3 Rh5 Bd2 c1B Ba5 Nh6 Nc3 Nc6 b8N Be3 Bd3+ Nf5 Nge2 Bb7 Bc2 Ba7 Na4 Ne5 Re1 h1B Ng3 h2 Qd5 Bg2 Nb6 h1Q Re3 Bf1 Nc8 Bb5 Nc6 Qg2 Qc5 Qb6 d8N Ba4 Qb4 Qd4 d7 Qh2 Qb5 Qe2 Rb1 a1N Rb2 Qg2 Ra2 Qh2 Re4 Ne3 Nf5 Nf1 Re3 Qhd2 Nb8 Bc6 Nb7 Q2c3 d8R Qb2 Nbd6 Bb7 Qd3 Be8 Qb5 Bc5 Bc7 Ra3 Nc6 Ba7 Ba5 Rh2 Bc3 Re2 Ba5 Kh5 g6 Kg5 g7 Kf4 g8B Ng6 Bh7 Qa4 Kd5 e5 Ke6 e4 Rd7 Be7 f8N Qad4 Rd8 Re1 Nd7 Bf8 Nf6 Re2 Rc3 e3 Ng8 Re1 Rd7 e2 Re3 Ba8 Ne4 Bfc5 Ned6 Nh8 Ke7 Ng6+ Kd8 Bb7 Nb8 Bd5 Nc6 Rb1 Rd3 e1Q Rd2 Qe2 Re7 Re1 Re3 Qec4 Red3 Re5 Re3 Nf8 Bg6 Qe2 Bh5 Ng6 Rc3 Qee4 Nfe7 Qf5 Re3 Qe6 Nef5
2k4n/3qQ1NK/2qb4/2bP2RP/1rN2N2/Bn1Nr2B/q3N2B/2RrrR1b b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 c5 Kf4 a5 Kg5 e5+ Kg6 c4 d4 a4 b4 e4 h4 a3 f4 a2 b6 c3 h5 e3 b7 e2 d6 e1B d5 c2 f6 g3 b5 g2 f5 Be7 b6 Nh6 f7 Bg3 f8R Nc6 b8B Nd4 b7 Ra3 f6 Nb3 Rg8 Nf7 Ne2 g1R Nd2 Ra4 Bc7 Rb4 Ba3 c1Q Qe1 Qc6 Rc1 a1Q Nc4 Qa2 Bb8 Qe8 Bh3+ Kd8 d7 Bc5 Bd6 Rh7 b8N Nh8+ Kf5 g5 f7 g4 f8N Re7 Rg5 Re3 Ng6 Be5 Ngf4 g3 Na6 g2 Qh4 Re1 Rf1 g1R Bb8 Bb6 Nc5 Bd6 Ncd3 Bbc5 Kf6 Rd1 Kg7 Ba6 Kh7 Bb5 Rf3 Rge1 Rf1 Qe6 Ba7 Kc7 d8N Kc8 Bb8 Qg4 Nde6 Ba6 Ng7 Qgd7 Rg4 Bb5 Qe7 Ba6 Ncb2 Bc4 Rg5 Bb5 Nf2 Bd3+ Ng6 Bg3 Nc4 Be4 Nd3 Bh1 Bc7 Bf2 Bh2 Bg3 Ndb2 Bc7 Ngf4 B7d6 Nbd3
1kq2nN1/2rn1B1b/rn1b4/BN3RBn/7R/n1BK1P2/1P1RQB1n/b3N3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 g4 c5 d4 Kc7 g5 h5 f3 a5 f6 e5 g6 e4 g7 a4 f7 c4 Kd2 c3+ Ke2 c2 Qe1 h3 Qh4 e3 Na3 h2 Nc4 a3 Qe4 a2 Bd2 h4 Qd3 h3 Nd6 Bf5 Rd1 a1B Bc3 Qc8 Rd2 Ne7 g8N Nd7 b6+ Kb8 b7 Bh7 Nb5 Nb6 d6 Ng6 d7 Ra6 d8B Bd6 d5 Nf8 Bg5 c1N+ Kd1 e2+ Kc2 Bb4 d6 Nb3 d7 Bd6 d8B Nc5 Qe4 Ncd7 Kd3 Na8 Bda5 e1N+ Kd4 Nc2+ Kd3 Na3 Ne2 Nab6 Nf4 Be7 Ng2 Bd6 Nf6 Rg8 Ne1 Rg6 Ng8 Rg7 Rg1 h1N Rg4 h2 Rh4 Ng3 Bh3 h1N Be6 Rg6 Qe2 Nf1 Bc4 Nh2 Bb3 Ne6 f8R Rg7+ Rf5 Nef8 Bf7 Ng3 Na7 Kc7 b8B+ Kb7 Bc7 Nh5 Nb5 Ka8 Bcd8 Kb8 Be3 Rg4 Bf2 Rc4 Bdf6 Rc7 Bg5
1RnN3N/5Bb1/knP3rB/1nr5/rQ2Rrqn/b1P5/3B1R2/K1N1NN1b b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Kd2 h5 Kc3 a5 b4 e5 Kb2 d5 g4 Kd7 f4 Kc7 g5 Kb7 b6 a4 g6 h3 f6 h4 f7 e4 f5 e3 g7 e2 b5 e1N f6 d4 Nc3 d3 Qg4 d2 Ra2 d1N+ Ka1 h2 Bd2 a3 Nce2 h3 Nf3 Qd5 Nc1 Ne7 g8N Qf5 Qb4 Nd7 Bc4 Rh4 Nh6 Rf4 Ng4 Nc3 Ne3 Qg4 Nf1 Ng2 Ne1 Nh4 Rg1 Bg7 f8B h1R f7 h2 Rb2 a2 c6+ Kb8 b7 Ka7 b8N Nb6 Rg2 Rg1 Re2 h1R Re4 Bb7 Bd5 Nec8 Bb3 Bh8 Bh6 Bg7 f8N Rh2 Ng6 Re2 Rc4 Re5 Re4 Rc5 Nh8 Bf8 Bf7 Be7 Na6 Bd6 Nc7 Be7 Rb1 Bf8 Ne6 Be7 Kb2 a1B+ Kb3 Bf6 Be3 Rg5 Rb2 Qg3 Nd8 Rc5 Re7 Bg7 Ka3 Nd7 Kb3 Nd5 Ka2 Nc7 Kb1 Kb6 Ra2 Bab2 Re5 Ba3 Ka1 Ra4 c3 Ba6 Qc4 Qf3 Re7 Rg6 Re2 Qg4 Rf2 Ka5 b6 Bb5 b7 Ndb6 b8R Ka6 Qd5 Bc4 Bd2 Nb5 Qd4 Bd5 Qb4 Bh1 Re4
r2B1kn1/n3Rb1q/3N1qR1/q2BN1n1/B1K5/1r1N1nRP/4RP2/4RqbQ b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 Kd3 d5 c4 e5 b4 a5 b6 a4 f6 a3 f7+ Ke7 b7 a2 b5 g4 c5 g3 h6 g2 c6 Be6 h7 Ra7 h3 Bc8 b6 Be6 c7 Nc6 b8N Rb7 c8B Na7 Ne2 g1N Nd7 Nf3 Rg1 Ng5 Rg3 Bg7 f8R Bf7 Nd2 e4+ Kc2 d3+ Kb3 e3 Bg2 d4+ Bd5 Be5 Ne4 d2 Nd6 d3 Kc4 Bf4 Qh1 d1Q Ne5 d2 Bd7 Qf1 Ba4 d1Q Bd2 Qde1 Ba5 Qd7 Ra8 Rb8 b7 Kf8 Bd8 Qa5 Rd1 a1Q Re1 Qg1 Nc1 e2 Ncd3 Qf1 Rg1 Bh2 Rg3 Nc6 Ra6 Na7 Rc6 Bg1 Rb6 Ra8 b8R Qe7 Rc8 Rb8 Rbc6 Rb3 R8c7 Qf6 Re7 Qb1 Rd1 e1N Rd2 Nh6 Re2 Rg8 h8R Nef3 Rh7 Rh8 Ra6 Ng8 Rh6 Qf5 Rhe6 Qf6 Ne1 Qh7 N1d3 Rb8 Rb6 Rb7 Rb1 Rb3 Rbe1 Kg7 Nc8 Qfg6 Rg4 Nf6 Bc7 Re8 Rd6 Kf8 Rg3 Ng8 Ra6 Qgg7 Rg6 Qf6 Nd6 Ra8 Bd8
1R2n3/B2rP2q/3NN2k/P3bR1r/3b2nB/1Rbn3b/Bq1n4/N2K1BBQ b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 b5 h4 c5 a4 f5 e4 Kf7 h6 Kg6 e6 c4 e5 c3 h7 f4 e7 b3 e8B+ Kh6 d6 g5 a5 g4 e6 g3 d5 b4 d7 b2 h5 b3 d6 g2 Ne2 g1B Ra3 c2 Ng3 Nc6 Ne4 Nf6 Be3 c1B Nbd2 b1N Ba7 f3 Bf7 b2 Nb3 Qc7 d8N Nd2 d7 b1Q Na1 Bd4 Nd6 Ne8 Rb3 Bfg7 e7 Bcb2 Ne6 Bbc3 d8B Qb7 Bdb6 Bge5 Qc1 f2+ Kd1 Bd7 Rg1 Qb8 Rg5 Nb4 Rf5 Nd3 Bc5 Qb7 Bg8 Rd8 Bf7 Rg8 h8B Rg5 Bf6 Qh1 Bcb6 Qb2 Bc5 Bc8 Bg8 Rd7 Bcb6 Rg2 Bh4 Rg5 Bf7 Bb7 Bc5 Bg2 Bg8 Bh3 Bf7 Kh7 h6 Rh5 Bg8+ Kg6 h7 Kh6 Bcb6 Qg2 Bf7 Qg7 h8R+ Qh7 Qb1 Nf6 Rb8 Ne8 Bg2 f1N Bc5 Nh2 Bf1 Bh8 Qc1 Bde5 Bg1 Ng4 Bg8 Bcd4 Qc6 Bc3 Qh1 Bed4 Bf7 Bhe5 R3b6 Nc4 Nc7 Nd2 Ba2 Nb4 Ne6 Nd3 Rb3
3RbB2/N1PBn2B/1r1nq1Bn/3rB3/6b1/1bR2NKQ/2Pq1N1n/1kR1b3 b - - 0 1 illegal: No possible last move, all moves rejected
2BN3n/1b1BQ1R1/qbN1r2q/BrRn3P/p5bk/1r1B1B2/1R3Pn1/2N3K1 b - - 0 1 illegal: No proof kernel
qb1N2N1/Q1Rrq3/KP6/2b1B2R/1rn1b2p/1nP1RBR1/R5NB/1k1n1q2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 f4 e5 b4 h5 g4 a5 f6 Ke6 f5+ Kd6 c3 a4 b6 a3 b7 a2 b5 Kc5 f7 Bd7 b6 Kb5 f6 Ra4 g6 Nc6 b8B Nh6 g5 Rh7 g7 Rb4 g8N Na5 g6 Qe7 g7 Nc4 Be2 Nf5 Bf4 Bc6 Bf3 h4 Nd2 Ka5 Nb3+ Ka4 Nc5+ Ka3 Ne2 Kb2 Bh2 Ba8 Nf4 e4+ Ke2 e3 Kd3 e2 Re1 Bb7 Nce6 Bc6 Nd8 Ba8 Rf1 e1B Be5 Bg3 Qa4 Bc6 Rae1 a1Q Ng2 Bb7 Qd7 Qa8 Re3 Bf4 Rf2+ Kb1 Ra2 Bc6 Qa7 Bb7 Ke2 d3+ Ke1 d2+ Ke2 d1N Kd3 Nfd6 Kd4 Na5+ Kc5 d4 Ree2 Rb2 Re3 Nb3+ Kb4 Nc4+ Kb5 Bd5 Ka6 d3 Nb7 Qee8 Nd8 Bc5 f8R d2 Rf7 Be4 Rc7 Qe7 f7 Bg3 f8R Bf4 Bd4 Be5 Rf5 Bed6 Rc8 Bb8 Bde5 Qd6 Ra5 Na1 Nb7 Nf2 Nf6 d1Q g8R Qf1 Ra2 Nd1 Rh5 Rd7 Rc7 Qe7 Nd8 Rb4 Rg3 Nb3 Ng8
1b2Nn2/q1p1nbn1/1BQ1N1P1/1b4B1/q1B2KB1/q3R1PR/4B1k1/1r2rR1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Ke7 Kg3 Ke6 b4 Kd5 e4+ Kd4 e6 f5 e7 h5 e8B a5 b6 a4 e5 Ke4 d4 a3 e6 c3 b7 a2 d5 c2 d6 Be7 b5 Ra4 b6 Qd7 g6 Rb4 Nh3 Qa4 d7 Bc5 d8N Ne7 Bg5 c1Q Qd6 Nd7 b8R Nf8 b7 Ba7 Na3 Rb1 Bc4 Qb2 Ra8 Bb8 Nb5 Rh7 Rf1 Qba3+ Rf3 Qa7 Bd7 Re1 Rd1 a1Q Rdd3 Q3a4 Rf1 Q1a3 Rc3 Ng8 e7 f4+ Kh4 f3 Kg3 f2 e8B Rh6 Bg4 Be6 Qc6+ Bd5 Bf7 Ne7 Ne6 Rh7 Bge2 h4+ Kg4 Rh5 Be8 Rh7 Bd7 Rf7 Rg3 Rf3 Bc8 Rb3 Rc3 Rbb1 Nd6+ Ke5 Ne8 Ke4 Rh1 f1B Nf2+ Ke5 Rg1 h3 Nh1 h2 Rh3 Ke4 N6g7 Kd4 Kf4 Bg8 Bcg4 Bf7 Nf2 h1N Re3 Ng3 Nh1 Ngf5 g3 Bg2 Rf1 Be4 Qb5 Bd3 Qc6 Kc3 Ne6 Kd2 Rf2 Ng7 Rh2 Qb6 Ra5 Qa7 Rh3 Rec1 Rf5 Ke1 Bd1+ Kf1 Bde2+ Kg1 Rd5 Be4 Rd1+ Kg2 Rf1 Re1 Qb5 Bc6 Qc5 Q7a6 Qb6 Ba7 b8B Bb5 Qc6+ Nd5+ Ke5 Qb7 Re4 Ne7 Kf4 Bd4 Ba7 Bf2 Bc5 Bd4 Bd6 Ba7 Bc5 Bb8 Bb6 Qba7 Re3+
rr2B2B/2N1r1r1/QBbRR1nn/nBR2P2/1p6/1N6/PN1B1qr1/K2kb3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb2 e5 g4 c5 f4 b5 f6 e4 f5 c4 f7 b3 g6 b4 g5 e3 g7 e2 g6 e1N Ne2 h4 Nd2 h3 Nc3 h2 Na4 Qh4 Qe2 Nh6 g8N Bg7 Ne7 Nc6 f8B c3+ Kb1 b2 Nb3 Bb7 Bd2 Qf2 Qa6 Ng2 Bb5 Rh7 Re1 h1R Rc1 Be5 g7 Nh4 g8B Bg3 Bf7 Rh2 Be8 Rg2 Bg7 Ng6 Bh8 Rg7 Re1 Qf4 Re4 Be1 Re3 Qf2 Re4 Kc7 Re6 Na5 d6+ Kd8 d7 Kc7 d8R Bc6 Kc2 b1R d5 Rb2+ Kc1 c2 Rdd6 Rb8 Nbc5 Rb3 Nb2 Re3 Nb3 Ra8 Na4 Re2 Kb2 c1R Rb1 Rc4 Ka1 Rd4 Nb2 Re5 Qc8+ Kb6 Rc1 Rde4 Rc5 Reg4 Ng8 Rb7 Nf6 Rbb8 Bf7 R4g3 Ne8 Re2 Nc7 Ree3 Rf6 Re7 Rde6 Rg5 d6 R5g4 d7 R4g3 d8B Rg4 Rd5 R4g3 Rdd6 Rg4 Nc1 Kc5 Qa6 R4g3 Be8 Rg4 Nd5 Kd4 Re5 R4g3 Rde6 Rg4 Nc7 R4g3 Rc5 Rg5 Nc4 R5g4 Nb3+ Kd3 Rd6+ Kc2 Rfe6 Rg5 Nd5 Kd1 Bb6 Nh4 Nc7 Rgg7 Ree5 Ng6 Re2 Rg4 Ree6 Rg2 Nb2#
1BR1K3/brBN1NR1/1Pn1kq2/1p1N4/1n1Q2R1/3R3r/2BRb1P1/r2r1nr1 b - - 0 1 illegal: No proof kernel
R5K1/2N1b1Rr/2nNr1bq/1BPkBNP1/4N2r/2p4N/r1Bnn1b1/2Q1R3 b - - 0 1 illegal: No proof kernel
5BbN/2BrB2b/NPNn3r/3n1q2/1QR1p2P/B2r2R1/1Kb1n2k/R2Bb3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 h4 a5 b4 d5 b6 g5 c5 a4 f6 a3 c6 g4 f7 d3+ Kc3 g3 b5 d2 f3 Kf4 h6 e5 b7 g2 c7 Kg3 h7 d4+ Kb3 a2 b6 d3 f4 e4 f5 Bb4 f8B Nh6 f6 Qd5+ Kb2 Ra3 f7 Bf5 c8R Nc6 Rb8 Ne7 Qb3 d1B Nf3 g1N Nbd2 Bc2 Ne5 Ne2 Rg1+ Kh2 Nc6 Qe6 Rd8 Nd5 Be7 Bg6 f8B Nf5 b8B+ Nd6 Re8 Qf5 Rc8 Ra7 Bh3 Rd7 Bc7 Ba5 Qa3 Bb4 Nb3 d2 Rg4 d1B Rg3 Be1 Nc5 Bb3 Qb4 Bdc2 Na6 Bc4 Rb1 a1R Bg4 Ra3 Ra1 Rd3 Bf3 Rg8 h8N Bh7 Bg4 Rg6 Bf3 Ng1 Bd1 Rh6 Be3 B4b3 Bc5 Ba2 Qd4 Ne2 Ba3 Nf6 Qa4 Bag8 Qb4 Nd5 Na5 Nb5 Bcd8 Rd2 Rc4 Nd6 Nc6 Rd3 Bc7
3bN1n1/1B1kbQP1/2B3Kb/1rpB1Rnr/6R1/2RqNrn1/B1P1N2r/6B1 b - - 0 1 illegal: No possible last move
R2R3R/1n2B2N/1k3n1Q/1r2BBnp/r1n2K1P/6PB/1N1N2b1/3qqbnB b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 e3 d5 Ra6 d3 Ra4 d2+ Ke2 d4 Kf2 d3 Ra5 Bg7 Ra1 Bd4 exd4 Qd5 Qe1 Qd6 Qd1 Qd8 Kg3 Kd7 c4 Kc7 b4 e5 b6+ Kc6 c5 f5 b5+ Kb7 d5 a5 g6 a4 d6 e4 g7 a3 d7 a2 Kf4 e3 g3 e2 Na3 e1N Nf3 Ra4+ Nc4 Nf6 g8B Nc6 Bh3 Na5 Ba3 h6 Qc1 d1N Bf7 Nc3 Nd2 Nce4 Nb2 Ng5+ Bc4 Qe7 d8R Nef3 Bb4 Qe1 c6+ Kb8 c7+ Kb7 Bg8 Nc4 Be7 Ng1 Bf7 Bd7 Bd5+ Bc6 c8B+ Ka8 b7+ Ka7 b8B+ Kb6 Ne4 d2 Be5 d1Q Nd2 Rf8 Bde6 Bg2 Bd5 Ka5 b6 h5 b7 Rh8 b8N Kb6 Rb1 a1N Nd7+ Ka7 Ba8 Nb3 Nf8 Kb6 Nh7 Nba5 Ra1 Rf8 Ra3 Rf7 Rh8 Nb7 Be6 Rf8 Rd3 Rc8 Rdd8 Rc5 Bd7 N1f3 Rf1 Ng1 Rf3 Rb5 Ra3 Nbd6 Bf3 Nb7 Ra2 Bf1 Bh1 Bg2 Ra1 Nc5 Ne4 Na3 Bg4 Rab4 h4 Nf7 Bh3 Nc4 Raa8 Ra4 Be6 Nb7 Bc8 Nfd6 Kg5 f4 Qd2 f3 Qf4 f2 Nd2 Nde4+ Kf5 f1B Qh6 Ng5 Kf4 N1f3 Bcd7 Ng1 Bdf5
4Q2n/nkqb4/1RN1R2K/B5N1/1pN1rP1B/1NR4P/rq3b2/1Nb2qbB b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 g5 Kg4 b5 f4 c5 a4 Kc7 d4 e5 h3 e4 a5 b3 d6+ Kc6 d7 b2 h6 e3 Kh5 c4 a6 g4 d5+ Kb6 a7 g3 h7 e2 d6 e1Q f6 g2 f7 c3 Nf3 g1B Qa4 c2 Nd4 Ba6 Bg2 Bc8 Nb3 Bc5 Bd2 c1B Ba5+ Ka6 Ra2 Qe6 Re1 b4 Bh1 Qc7 d8B Bg7 f8N Bgd4 d7 Bf2 Bh4 Nh6 d8N Bd7 Nc6 Qc4 Ne6 Re8 h8R Nf7 Ng5 Qf1 Re6 Kb7 Rh7 Nh8 Kh6 Bb6 Rhe7 Bbc5 Re3 Bg1 Rc3 Bcf2 Re6 Re7 N1d2 b1Q Ra1 Qb2 Nb1 Na6 Ra3 Qb6 Qb5 Nc7 Qe5 Nb5 Qe4 Rg8 a8N Qc7 Nb6 Na7 Nc4 Rf8 Qg6 Rf5 Qe8 Rff7 Rg6 Re4 Re6 Rf5 Bb6 Rd5 Ra6 Rd2 Ba5 Qa1 Rf3 Ra2 Rc3 Qb2 Rb6+
1rr1N2b/2N1q3/4RBpK/3Bq1PR/qP1b2Rn/2n3bQ/3B3b/kN3RR1 b - - 0 1 illegal: No extended proof kernel
Nb1r4/q1r1qR1K/2B1P1nb/B4r1B/N2P2b1/1B4Rp/kB5N/rRn3Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d6 c5 b6 h5 b7 c4 d7 a4 Kf5 c3 e4 f6 Kg6 f3 e5 c2 Ra3 f2 Bb5 f1Q Nf3 f5 Nc3 h4 Bc6 f4 Nh2 Qe7 d8B f3 Ba5+ Kc4 b4 f2 b5 h3 b6 Ra6 Bb2 Nd7 b8R c1B b7 Qe2 Qg1 f1R Rb3 a3 Na4 a2 Rg3 a1R Ra8 Be3 b8N Kb3 Ra7 Nc5 Nd7 Bg7 Ndb6 Rf5 Na8 Nd3 Rd7 Bf8 Ra7 Qc5 Rf7 Bd6 Kg7 Qb6 g6 Ne7 g5 Rd8 Kh7 Ra7 g7 Rc7 g8B Qa7 g6 Bh6 g7 Qe4 Qe3 Bd7 Rb1 Ng6 Qg1 Bc8 Rf6+ Be6 Bf7 Ka2 Bfe8 Nc1 Rf7 Qh4 g8B Qg5 Bf3 Qe7 Bh5 Rcc8 Bc6 Bb8 Rg7 Rc7 Bf7 Bc4 Bfd5 Bb3 e6 Bc4 Rf7 Bb3 Be4 Bd1 Bc2 Bg4 Bb3+
7q/2Qb4/B1P1rkB1/6r1/b2R1K1n/1qPRN2r/N2bpbBB/3Rn1NB b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 c5 hxg5 Nc6 dxc5 Nb8 Kd2 Kf7 Ke3 d5 f4 b5 a4 e5 g4 h5 a6 h4 g6+ Ke6 a7 h3 g5 b4 g7 b3 c6 b2 g6 h2 f5+ Kf6 Ba6 Ne7 g8B Nd7 g7 Nc5 Nc3 b1Q Na2 Nd3 Bh7 Qb3 Bg6 Rh6 g8R Rb8 a8B Rb5 Qf1 Bd7 Qf4 Ra5 Bd2 Qdb8 Rd1 Ne1+ Bc3 Bg7 Rd3 Qc8 Rd8 d4+ Kf2 e3+ Kg3 e4 Qc7 e2 Kf4 e3 Bb4 Nf3 Bd6 e1B B8b7 e2 Ba8 Bf8 B8b7 Kg7 Ba8 Bf2 f6+ Kh8 f7 Kg7 B8b7 Kf6 Ba8 Bg7 f8N Rg5 Ne6 Nf5 B8b7 Bh8 Ng7 N5h4 Nf5 Ne1 Ne3 Bg7 Rc3 d3 Ba8 d2 Rd3 d1B B8b7 Bh3 Be5+ Ke6 R8d4 Qh8 a5 Bf8 Nf3 Rhh5 Ke4 Bb4 c3 Ba3 Bd6 Neg2 Bc8+ Kf6 Bc4 Qb6 a6 Ba4 Bg4 Rf5 a7 Qb4 a8B Rhg5 Bb7 Bc1 Bba6 Qb3 Rhd1 h1R Ng1 Ne1 Bf3 Bd2 Bd5 Bg4 Bg3 Re5+ Kf4 Rh3 Bh1 Bd7 Bh2 Re6 Bdg2
rb2R3/7q/N1P1pR2/n1b1Qr1B/Nr1Pk3/Bb4KN/2N2BR1/1N2n1rq b - - 0 1 illegal: No proof kernel
R2k1NKn/N1Q4n/Pp3NBN/7n/1R1P1q1q/Nr1B1rn1/r4B2/b3Rb2 b - - 0 1 illegal: No possible last move
q7/R2r1BpP/NKnR1kN1/Rb1P4/1Q5q/q3n1rr/BqRB2NR/6b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 h4 a5 d4 c5 b4 f5 e4 c4 e5 a4 e6 c3 b6 c2 b7 a3 h6 f3 Ke3 f2 h5 a2 b5 Nd7 b8R Qe8 h7 Ne5 d6+ Kf6 d7 Qe7 d8R Qb4 d5 Qg4 h6 f4+ Kd4 Nd3 e7 Qg2 e8B f3 b6 Bf5 b7 Bg6 Nc3 Ne7 Nh3 Qg1 Rbc8 Bf7 b8N Qg4+ Nf4 Ne1 Kc5 Qh4 Bd2 c1Q Kb6 Ra3 Bc4 f1Q Ng6 f2 Qg4 Nc6 Nd1 Rg3 Ne3 Ng2 Bd7 Qe2 Na6 f1R Rh2 Qa3 Be6 Be8 Rd6 Rh1 Ra8 Rg8 Rc1 a1Q h8R Be7 h7 Qf2 Bb4 Qfb2 Ba2 Bd7 Qc4 Rd8 Ra7 Be8 Rc2 Rd7 Qb5 Bf8 Bd2 Be7 Nc4 Ne3 Qb4 Bf8 Nf4 Be7 Ne5 Bf8 Neg6 Be7 Re2 Rhh3 Rh2 Bd8+ Kb5 Bb6 Ng2 Ng4 Rg8 Bg1 Rh8 Ne3 Kb6 Bf7 Rha8 Be8 N6f4 Bh5 Ng6 Be2 Nb8 Bd3 Ra5 Bb5 Na6 Qd1 Ra7 Qdh5 Ne5 Qe8 Ng6 Qa8 Bf7+
2NRK1nN/5P1Q/nq3Rnr/b1qr3q/1BBk2R1/5bPB/n1p5/N1NN4 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 e5 d4 h5 f4 c5 b4 a5 d6 Ke6 d5+ Kf5 g3 a4 b6 h4 g6 h3 d7 c4 d6 h2 g7 c3 b7 a3 b5 a2 b6 c2 Qd3 Rh5 Bd2 Qh4 d8N Rg5 d7 Kf6 f5 Bd6 Bb4 Ra5 Nc3 Nh6 g8B Ra6 Nge2 Qh5 Nc1 Bc7 Bc4 Ng8 Nf7 Bd8 Rb1 a1N Nh8 Nb3 Bh3 Bc7 Re1 h1Q Rf1 Qg1+ Rf2 Bd8 Nd1 Bc7 d8R Be6 Qd7 Bd5 Qh7 Bc6 Nd3 Nc1 Rb2 Na2 Nc1 Rg7 Rb3 Rd7 Rd3 Rd6 Rd5 Ra5 Rc5 Na6 b8N Rb5 b7 Ba5 Rd5 Re6 Rc5 Bd5 Nc6 Rd6 Kd2 e3+ Kd3 e2 b8N e1Q Ne7 e4+ Kd4 e3 Nbc6 e2 Nc8 Bf3+ Rd5 Re6 Rc5 Qef1 Re5 e1N Rc5 Bg4 Kd5 Nd3 Nd4 Ne5 Ndb3 Ng6 Na1 Qe2 Rf1 Rc6 Rf3 Qe7 Rf4 Qa7 Rf3 Qb6 Rf1 Kg5 f6 Qe3 f7 Qc3 Nd6 Bf3+ Ke6+ Qe5+ Kd7 Kf6 Rf2 Qd4 Rd5 Qdc5 Nc8 Re6 Rg5 Rc6 Rg4 Ke5 Rg5+ Kd4 Ke8+ Qd6 Re2 Rd5 Rf2 Qdc5 Rf1 Nf8 Rf2 Rh6 Rf1 Ng6 Rf2 Bg2 Rf6 Bf3 Rg4+
2Q3Nr/r1P2N2/1q1p3N/n1R3nb/RqbN3k/3P4/1Bq3BN/K1R2Bnn b - - 0 1 legal: proof: h4 c5 e4 g5 b4 gxh4 a3 f5 exf5 b5 Ra2 Bg7 Ra1 Bc3 bxc5 b4 Rh3 b3 Rh1 Bb4 axb4 Kf8 Rh2 Kf7 Rh1 Ke8 f4 Kf7 g4 Kf6 c4 a5 b5 e5 d3 h5 Kd2 b2 Kc2 a4 c6 h3 c7 e4 c5 e3 b6 d6 g5+ Kf7 g6+ Kf6 c6 h2 g7 e2 b7 e1Q Ne2 a3 Nd4 a2 Qg4 h4 Nd2 b1N Kb2 h3 N2f3 Nh6 g8N+ Kf7 f6 Qe4 f5 Bd7 c8B Be6 c7 Nc6 b8N Ra7 Nd7 Bc4 Bb7 Nd2 Ba8 Na5 Nde5+ Kf8 f7 Qb8+ Bb7 Qe2 Rg1 h1B Nh2 Bc6 Rh1 B6b5 Bd5 Qb6 Bdg2 Qd1 Rg1 Nf3 Rh1 Ng5 Rg1 Kg7 f8R Nf7 Nh6 Kf6 Rg8 Nf3 Rg5 Qe1 Rh5 N7g5 Nef7 Bb3 Rh1 Be8 Rg1 Qeb4 Rh1 Kg7 f6+ Kg6 Qd7 Ng1 Qc8 Ne6 Rc5 Ng5 Bd2 Kh5 Bc3 Kh4 Rc1 Nc6 Ka1 Na5 Bb2 Be6 Ng8 Bd5 Nfh6 Bh5 f7 Bb3 f8N Bc4 N2g4 h2 Nfe6 N1h3 Rg1 h1N Nd8 Q6b5 Bd5 Qb6 Rg3 Ng1 Nh2 Nh7 Rg6 Ng5 Ndf7 Qa3 Nb3 Ne4 Bc3 Ba6 Be5 Qa4 Kb2 Bb5 Rf6 Ng5 Bdg2 Qg4 Rf4 a1Q+ Kc2 Qa4 Kb1 Qc4 Ka1 Qc2 Ra4 Qb4 Bb2 Bc4 Nd4
N7/Pn1KB1r1/kqBn4/RbQ1bN1R/B7/p1PN3n/bR2q3/1BB2rn1 b - - 0 1 illegal: No possible last move
1nB1R3/p1qPB3/1B4b1/q1qB2Bb/4n1rr/1b2b1Q1/3RR2P/NNkNK3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 d4 Kd6 b4 f5 e5+ Ke7 e6 Kf6 b6 Kg5 b7 c5 d6 c4 h6 g6 h7 c3 b5 c2 e7 Be6 e8B Nf6 d5 Ne4 d7 Bh6 d6 Bb3 Ne2 Qa5+ Nec3 Rg8 Ba3 c1Q h8B f3 d8B+ Kf4 b6 Ke3 d7 f4 Bhf6 g5 Ra2 g4 Ba6 g3 Bf7 g2 Rd2 Rg4 Bg5 Qc2 Rf1 g1Q Bd5 Qc1 Bae7 Qc2 Na4 Qc7 Nb2 Rh4 Bgf6 Qg5 Rf2 Qf5 Rg2 Qfe5 Bg5 f2+ Kf1 Qcc5 Qh5 Qec7 Qg6 Nc6 b8R Rg4 Rc8 Nb8 Bab7 Rh4 Rc2 Rg4 Nd1+ Kd3 Re2 Rh4 Re3+ Kc2 Re2+ Kc1 Ba6 Rg4 b7 Rh4 Rd2 Rg4 Ke2 f1B+ Ke1 Bd3 Re2 f3 Qd6 Rh4 Qg3 f2+ Kf1 Q7c6 Bb6 Qc7 Re8 Bdc2 Bgf6 Be3 Bg5 Nc6 b8N Rg4 Kg2 f1B+ Kf3 Bh3 Bc8 Bd3 Na6 Nb8 Nb4 Bf1 Re1 Bfe2+ Kg2 Rh4 Nc2 Bh5 Ree2 Qcb4 Kf1 Nd6 Rd8 Qbc5 Bf4 Nc6 Ba6 Bh7 Rf8 Ne4 Na1 Rd8 Rg8 Nb8 Ke1 Re8 Rh8 Rg8 Bc8 Rgg4 Re8 B7g6 Bfg5
BRQ4R/Pn1q4/1n3b1p/2nnB3/NNnP1NrB/1r2B3/K1B5/3nkR1b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 b5 g4 e5 d4 c5 Kd2 b3 Kc3 c4 Kb2 e4 a5 e3 a6 b4 a7 e2 f6 Kg6 d6 e1N d7 Bb7 f7 Be7 f8B Bd5 Ne2 Bf6 Ra2 Ne7 Nbc3 Rg8 Na4 c3+ Ka1 c2 Bg7 Bc6 Bg2 Nd3 Be3 c1N Qc2 b2+ Kb1 Be4 Qc8 Nd5 Bh8 Qc7 d8N Qd7 Nc6 Nb3 Bg7 Na5 f5+ Kf7 Nf4 Nb7 Rh2 Bf3 Bh1 Ndc5 Rf2 h6 Ra1 Be4+ Ka2 Bf3 Rb1 Bg2 Bh8 Be4 Bf3 Rg6 Bd1 Bh1 Bc2 b3+ Ka3 Ne6 Nb4 Nec5 Bg7 Ke7 Bh8 Rg8 g6 Kd6 g5 Rg7 Rc1 Rg8 g7 b1N+ Kb2 Nd2 g6 Nc4+ Ka1 b2+ Ka2 Bd8 f6 b1N f7 Be7 f8B Nbc3+ Ka1 Nd1 Rb1 Ne4 Ka2 Nec5 Nfd3 Ke6 Nf4+ Kf6 Rb2 Kg5 Rb3 Bf6 Be7 Kg4 Bd8 Rf8 g8B Kg3 g7 Re8 Bf7 Re5 g8R+ Rg5 Rf8 Rg4 Be8 Nba6 Beg6 Nac7 Bge4 Ndb6 Bg7 Rb8 Rh8 Ncd5 Bg2 Be5 Bg5 Bf6 Bh4+ Kh2 Rb1 Kg1 Bge4 Be7 Be5 Bf6 Rh2+ Kf1 Rf2+ Ke1 Bf3 Nc7 Bc6 Ncd5 Rb2 Nbd6 Ba8 Ndb7 Nh5 Nbd6 Na6 Rb7 Qc7 Nbc8 Nf4 Rb3 Rb1 Rc3 Rb8 Ndb7 Nb4 N8b6 Qc8 Rb3 Rf1+
1q1rr2r/1N1n2B1/R3R3/3bPNNb/2k2N1P/3rbn1p/1K3BBN/2Q2b1R b - - 0 1 illegal: No proof kernel
1Q6/B1B1n3/1bb3b1/1brB1kq1/3Pqb2/RqNRp3/1rN1P1B1/1N1KR2B b - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bb7 g5 Bc8 h5 Nc6 Ra6 Ne5 Ra1 Ng6 hxg6 Bb7 Bg2 Ba6 Bf1 Bc8 b4 Kd7 d4 e5 b6 f5 b7 a5 b8B h5 g7 c5 d6 Ke6 b5 c4 d7 h4 b6 e4 g6 f3 b7 h3 Rh2 c3 Ra3 f4 Rb3 c2 Qd3 a4 Bb2 c1B Ba1 a3 Qc4+ Kf5 Rg2 a2 Qc3 f2+ Kd1 f3 Qc7 h2 Nc3 h1Q Ra3 Bf4 Ba7 e3 b8R Rh5 Rbb3 Ne7 g8B Ba6 g7 Bb5 Bd5 Rb8 g8B Rg5 Bb2 a1Q+ Bc1 Rb7 Qb8 Qa2 Bd2 Qa5 d8N Rb6 Rb2 Qb3+ Rc2 Rb7 Nc6 Rb6 Rh2 Rb7 Bg2 f1B Nb4 f2 Rh5 Qh4 Bh1 Bh3 Bdg2 f1B B8d5 Bg4 Rh6 Bh5 Nf3 Bg6 Be1 Qg4 Nd2 Qf3 Ndb1 Qe4 Bg3 Rh5 Bf3 Bg2 Bh2 Qa6 Rh7 Qf6 Rg7 Qg5 Rg8 Qc4 Rd2 Qb3+ Nc2 Nc6 Ra6 Bc5 Ra3 Bb6 Rd3 Ne7 Rg7 Rh8 Rh7 Rc8 Rh3 Rc5 Rg3 Bh3 Rg1 Bg4 Bfg2 B4h5 Ra2 Bge8 Ra5 Bhg6 Ra3 Bec6 Re1 Be5 Bf1 Ba6 Rd2 Qb5 Ra2 Ba5 Bc4 Qa4 Ra1 Rb2 Rd3 Bb6 Ra3 Bab5 Bd5 Qb3 Bfg2 Bec7 Be5 Bd6 Bg7 Bh2 Be5 Bf4 Bc7
qNrq2B1/3kp3/3bn3/rR2PBRN/4b2b/qR2b1BP/b1N2Q2/4NKN1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 c4 Nd7 cxd5 Ndf6 Ra6 Nh7 Ra4 hxg4 Ra6 g3 Ra3 g4 Ra1 Ng5 fxg5 Ba6 Ra3 Bb7 Ra1 Bc8 e4 c5 b4 a5 d4 f5 g6 c4 b6 f4 b5 a4 b7 c3 b8R c2 g7 a3 b6 a2 e5 f3 d6 g2 d5 g3 b7 Rh4 h3 Rc4 Bd3 Rca4 Qe2 Nh6 g8B Be6 Qf2 R4a5 Bf5 Bg7 Na3 Bf6 Bf4 Bh4 Rb1 Nf7 Rb5 Kd7 Rh2 c1B Nc2 a1Q Rb3 Qa3 Rb5 Be3 Rb3 Ke8 d7+ Kf8 d6 Ng5 Rb5 Ba2 Rb3 Ne6 Rh1 Qc8 d8N Ke8 Nc6 Kd7 N6b4 Qd8 Nd3 Bc5 Ne2 g1B Kf1 Bb4 Nde1 Bc5 Rh2 Bb4 Rg2 Bc5 Qd4 Be3 Ng1 f2 Rb5 R8a6 Qb2 Rc6 Rb3 Rc8 Rb5 Kc6 d7 Bd6 Rb3 Qf8 d8N+ Kd7 Nc6 Qd8 N6b4 Ke8 Nd5 Kd7 Rh2 Kc6 Nf6 g2+ Ke2 Kc7 Nh5 Kd7 Bg3 f1B+ Kf3 Beg5 Kf2 Bd3 Qd4 Be4 Ke2 Bf4 Qf2 Qb6 Ra8 Be3 b8N+ Ke8 Ra6 Qc6 Ra7 Qa8 Rab7 Kd8 R7b5 Kc7 Ngf3 g1Q Rg2 Qh1 Ng1 Kd8 Na6 Kd7 Kf1 Qd5 Bh2 Qa8 Rg5 Qf3 Bf4 Qd1 Bg3 Qd4 R5b4 Qb6 Rb5 Qd8 Nb8+
1n2qQ2/R2rNn2/1n1BpRPk/1Rb1rq2/N2rP3/1R1n4/4KRq1/1B1N1B2 b - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bg7 g4 Qd6 h3 Bf8 g5 Bg4 hxg4 Qd8 b4 c5 e4 a5 d4 f5 b6 Kf7 b5 Kg6 b7 h5 d6 c4 d5 h4 d7 h3 b6 h2 d6 a4 Nc3 f3 Nh3 f4 Nf2 a3 Qd5 a2 Ba3 Ra4 Nfd1 f2+ Ke2 Qe8 d8R Rh7 d7 Nh6 Bd6 Nf7 Rg1 h1R Rg2 R1h5 Rc8 Kg7 g6 Re5 d8N Kh6 g7 Rb4 Na4 c3 g8B c2 Rc3 Rd4 Nc6 Rg7 Rb3 c1N+ Kf3 Nd3 g5+ Kh5 g6 Kh6 Ke2 Rh7 Rab1 a1Q R1b2 Qc1 Ra2 Qc5 Qe6 Qd5 Qc8 Qe6 Ra1 Qf5 Qd8 Nd7 b8R Rg7 Rb7 Nb8 Ra7 Rh7 b7 f3+ Kd2 Nh8 Bc4 e6 Ne7 Nf7 Rb5 Rg7 Ba2 Rh7 Bb1 Rg7 Be2 f1Q Rf2 Qg2 Bf1 Rh7 Re2 f2 Rb3 Na6 b8R Rg7 R8b5 Nb8 Re3 Rh7 Rf3 Rg7 Ke2 Rh7 Nc6 Be7 Ra2 Bf8 Ba3 Bc5 Ne7 Qg8 Ne3 Nd6 N7d5 Rd7 Ne7 Qfh3 Nd1 Bb4 Rf6 Qf5 Ke3 Nf7 Be2 Qf8 Nc8 Qe7 Qg8 Qe8 Ne7 Bd6 Kd2 f1N+ Kc2 Nd2 Bf1 Bc7 Bd6 Nc4+ Kc3 Bb6 Rf2 Bc5 Kc2 Ne3+ Kd2 Nd5 Ke2 Nb6 Qf8+
rBnn4/2qN1B2/p2NRR1k/r2bB1n1/1K2B2q/2nQ2q1/PP1BrN2/7R b - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 f5 gxf5 bxc4 h4 g4 Bg5 Be7 Bc1 Bg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 Kd2 Kf7 Kc3 Kg7 e4 h5 f4 c5 e6 d5 e7 h4 e8R d4+ Kd2 a6 g6 d3 Kc3 g3 f6+ Kh6 g7 h3 e5 d2 f5 h2 e6 g2 f7 Qc7 f8B Bb7 f6 Ne7 f7 Qg3+ Bd3 Bd5 Nh3 g1N Na3 Nc8 e7 Nc6 Nb5 Nd8 Nf2 Nh3 Nd6 Ng5 Qe2 d1R Bd2 Re1 Qf3 Rg8 Be4 Re2 Qd3 Rh8 Rhf1 h1Q Rae1 Qhh4 g8B+ Kh5 Bg7 Rh6 Kc2 c3 f8B c4 Be5 Rf6 Rh1 Rf5 Ref1 Kg6 Bfg7 Kh5 Bf4 Kg6 Bd4 Kh6 Bf7 Re5 Ba7 Rf5 Bb8 Re5 Kb1 Rf5 Be5 c2+ Ka1 c1N Kb1 c3 Kc2 Ra7 Rg8 Ra8 e8N Nb3 Re1 Nc5 Nf6 Na4 Re8 Qhh2 Nd7 Qhh4 Bf6 Re5 Ref1 Rf5 Re6 Re5 Qf3 Rf5 Kd3 c2 Qe3 c1Q Be5+ Rf6 Kd4 Qc7 Qf3 Nc3 Qd3 Bc6 Kc5 Bb7+ Kb4 Bd5 Bg6 Rf3 Nh3 Rfe3 Rf7 Rf3 Nf2 Rf5 Rff6 Bc4 Bef4 Ra5 Be5 Bd5 Bf7+
Kn1br1Rq/3kN3/1b3B2/pB1rB1rB/3Qb3/Bbr1N1PR/PR3b2/3N4 b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 f5 gxf5 c5 bxc5 Qd5 Ba3 Qd7 Bc1 Qd8 Na3 g5 Rb1 g4 Rb4 g3 Rb1 g2 Ra1 Nd7 Nb1 Ndf6 Nf3 Nh5 Ng1 Ng3 hxg3 Qd6 Be2 Qd4 Bf1 Qd8 Ke2 h5 Ke3 b5 c4 e5 d4 a5 f4 b4 c6 h4 f6 b3 c5 b2 f7+ Ke7 f5 h3 c7 h2 d5 Rh3 c6 Rh4 d6+ Kf6 d7 Ke7 f6+ Ke6 Bb5 Bc5+ Qd4 Bb6 f8R Rh5 f7 Ne7 Nc3 b1B Nh3 g1B+ Nf2 Rg5 Ba3 Bb7 c8B Bc2 c7 Nc6 Rg8 Nb8 f8B Bb3 Bfd6 Ra7 Rg7 Qh8 Rb1 Ra8 Rb2 Ra6 Kd2 e3+ Kd3 e2 Ng4 e1B Ne3 Bef2 Ncd1 e4+ Kc3 Ra7 Rg8 Ba8 Bca6 Rb7 c8N Bd8 Be2 Rbb5 Ne7 Rbd5 Be5 Bb7 Bh5 Bc6 Nc2 e3 Bb5 e2 Nce3 e1R Kd3 Re2 Ke4 Rc2 Bf6 Rc3 Be5 Bb6 d8B Kd7 Nc8 Bc7 Bde7 Bd8 B7f6 Be1 Ne7 Bgf2 Rf1 h1R Rg1 Rh2 Rh1 Rg2 Rh2 Bg1 Rh4 Re2 Rh3 Bef2 Qc5 Bb6 Nc8 Bd8 Bc7 Rec2 Nf5 Rd6+ Qd5 Re3+ Kd4 Rce2 Kc5 Be1 Kb6 Rc3+ Qc5 Be3 Ka7 B1f2 Qb6 Bd4 Qc5 Re8 Nce7 Bde3 Qb6 Bc5 Nfe3 Rd2 Bce5 Bd4 Bd3 Be4 Bf1 Bc5 Bfe2 Rd5 Ka8 Bd4 Qb4 Bc5 Qd4 Bcb6 Bb5+
1r3r2/1k5B/1b2N1P1/1qR1R2r/b1P3nb/RN3RpN/nBp5/nQB2K1R b - - 0 1 illegal: No proof kernel
5rN1/B6R/NQ3q1B/bb1B1p1k/2p3qr/6nP/KnnqPR2/NN3N1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 a5 Kd2 f5 Kc2 Kf7 Kb3 g5 d6 c5 h6 Kg6 h3 f3 b6 f2 d5 a4+ Ka2 c4 b4 a3 b5 g4 h7 g3 b7 g2 d7 Qg5 d8N Qe7 d6 Nh6 d7 Qe4 b6 Ng8 Qd4 Qg4 Nc6 Bb4 d8N Ba5 Nb4 Nf6 Ndc6 Kh5 Nc2 Nbd7 b8B Nc5 b7 Bd7 Nf3 g1Q Nfd2 Nd3 Bg2 f1N Bd5 Ne4 Ba7 Neg3 b8N Ne3 Na6 Nb2 Nf1 Raf8 Ne7 Bb5 Ng8 Qf2 Rh2 Qe1 Qb6 Qb4 Rf2 Qd2 Nd4 Nc2 Nb3 Rf7 Nh6 Rhf8 h8R Rh7 Ng8 Kg5 Qc7 Rh4 Rh7 Kg6 Qb6+ Kg5 Re7 Kh5 Rh7+ Qh6 Nc3 Qf4 Nh2 Nd3 Bd2 Qg4 Rh1 Bb4 Nf1 Ba5 Na1 Nb2 Kb1 Nd1 Nb3 a2+ Kc1 a1Q+ Nb1 Qf6 Na1 Nc3 Kb2 Nd1+ Ka2 Nb2 Re7 Qhf4 Be3 Q4d4 Bh6 Qd2 Rh7
q3B1NR/1rbQ2B1/3BR3/2nP1N2/5R1R/3pRrPb/2pkqN1K/3b1rn1 b - - 0 1 illegal: No proof kernel
Q7/RB1qb3/1r1n3K/3p1b2/1B1R2q1/NrB2BP1/k1pP1NNn/B3R1bn b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 g4 Ke2 Nc6 h3 Nb4 hxg4 Nc2 a3 Nxa3 g5 Nc2 Kf3 Kf7 Kg4 a5 Kh5 c5 f4 e5 b4 h6 b6 e4 f6 Ke6 b5 Kd5 f7 a4 g6 c4 g3 c3 b7 a3 b8B e3 b6 a2 g7 e2 f5 Kc4 f6 Kb3 b7 e1B Ba6 Be7 f8B Bf2 Nh3 Bg1 Be5 Rb8 Qf3 Ne3 f7 c2 Bc3 Nc4 B1b2 Nd6 Na3 Nf6+ Kg6 h5 g8B h4 Nf2 h3 Qe4 Nh7 Kh6 h2 Re1 Qe8 Ba1 Ng5+ Bh7 Qd8 Qf3 Rg8 Be4 Qe8 Qg2 Nf3 Bc6 Rg4 Re4 Rg5 Rd4 Rb5 Be4 Rb6 Bc6 Ra8 b8R Qd8 Rb7 Rb8 Ra7 Qe8 Bab2 a1Q Bab7 Qd1 Ba1 Ka2 Be4 Ng5 Bec6 Qg4 Bf3 Rb3 Bg7 Rb6 f8N Qf7 Bb4 Qd5 Bd1 Nf3 Ne6 Qdf5 Nf4 Qd5 Bbc3 Rb3 Bb4 Qb5 Ba8 Rb6 Bb7 Nc4+ Bc6 Qgf5 Ne4 Be3 Re1 h1N Rd5 Qg4 Bgc3 Bg1 Rd4 Nh2 Nf2 d6 Qf3 Bf5 Ng2 Qa4 Ba8 Qd7 Qc6 d5 Bf3 Nd6 Qc8 Bh4 Bb7 Be7 Qa8
BB5k/N1B2Kn1/3P1R2/pn2b3/3B1rR1/N1n1rqq1/P1Bb1p2/1NQ1b2R b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 gxh5 c5 bxc5 Bf5 Ba3 Be6 Bc1 Bc8 f3 e5 Kf2 e3+ Kg3 e2 Qe1 e4 Qd1 Bf5 Kf2 e3+ Kg2 Be4 fxe4 Qc8 Nh3 Qc7 Ng1 Qd8 Na3 e1Q Kh3 g5 Kg4 a5 Kf5 b5 d4 b4 h4 g4 c4 e2 h6 b3 c6 f6 Ke6 g3 h5 g2 e5 b2 d5 b1N c5 f5 h7 f4 h6 f3 c7 f2 c8B Na6 c6 Nf6 c7 Nb4 Bf4 Nd7 Bb7 Qb8 c8N Bc5 Na7 Kf8 Nf3 g1B Nd2 Nc6 Bg2 Be3 Be4 Nc3 Bc2 Rg8 h8B Rg4 h7 Nf6 Rb1 Ne8 Rb4 Qf1 Ndb1 Bd2 Qc1 Qd1 Bf6 e1B h8B Kg8 Bd8 Qc7 Ra4 Rc8 Ba8 Bh2 Rc4 Qf3 Bg3 Rg5 Rg4 Qb8 Bg7 Nd4+ Ke7 Rf5 e6 Ndb5 Bd4+ Ng7 B8b6 Qbf4 Bd8 Qh6 Bb8 Qhf4 d6 Kh8 Bdc7 Rcf8 Rg6 Qh4+ Rf6 Re8+ Kf7 Bhf4 Rg1 Qhg3 Rh1+ Rh5 e7 Rh4 Bh7 Rg8 e8R Rg4 Re3 Re8 Re5 Re6 Rd5 Re3 Rg5 Be5 Rg6 Rge4 Rg4 Rf4 Bc2+
1rRN4/4K1N1/1P2nQBq/6Pr/R1q1pR2/1k2pRB1/N1n1q3/1Bb1Rb1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 f4 a5 b4 c6 g4 h4 b6 h3 g6 e6 f5 h2 g5 e3 b5 a4 f6 a3 b7 a2 b6 Ra5 g7 Rh6 f7 Rg6 Ne2 Qe7 Nbc3 Rh6 Nf4 Nf6 g8B Qe8 Qf3 Ng4 Nh5 Nf2 Bh7 Ra8 Ng7 Nd7 b8R Nc5 Bfd3 Rh5 Bb1 Ba6 Bhg6 Bf1 Rc8 Rb8 Qf6 Be7 Rg1 h1Q f8R Qh4+ Rg4 Nh1 Rf4 Qh2 d3 Qe2 Rf7 Qh8 Bd2 Bf8 Be1 Qh6 Ra7 Be7 Ra4 Bf8 Bg3 Be7 Qf7 e5+ Kc4 e4 Qf6+ Ne6 Kb4 Kd7+ d6 c5+ Kc4 Bf8 Kd5 c4 d4 Be7 Ke5 Bf8 d5 Be7 Nd1 c3 Rf8 c2 Nc3 c1Q Rf7 Kc8 d7+ Kb7 d6 Kc6 d8R Kc5 d7 Qcc2 Kf5 Qcd3 Re8 Qc4 d8N Bd6 Ra5+ Kb4 Ra4+ Kb3 Ref8 Qe1 Rc7 Be7 Rc8 Ba3 Ke5 Bb2 Kd6 Bc1 Ke7 Qee2 Bd3 Bb2 Re1 a1N Bb1 Nc2 Na2 Bc1 Rf3 Rh3 Qa1 Rh4 R8f4 Rh5 Qf6
3K1RB1/4Nr1q/Qpb2R1R/2B4B/2nN4/1PkPq2p/rq2BnNr/5b1B b - - 0 1 illegal: No extended proof kernel
1b4q1/2rn2RN/1pBN3q/2nP2RR/B3r3/pPB1kbR1/Q2R3K/q3b2N b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Be6 a5 Qc8 a6 Qb7 axb7 Bc8 f4 Kd7 Kf2 Kd6 d4 h5 g4 e5 Kg2 c5 b3 a5 f6 e4 f5 h3+ Kh2 h4 f7 c4 g5 e3 g6 c3 f6 e2 g7 e1B Bd2 a4 Qc2 a3 Qa2 c2 Ne2 c1Q Ng3 Ra6 Bc3 Bg4 Nd2 Qc2 Bb5 Nd7 b8R Nc5 Ba4 Qb2 Rb7 Rh7 Rg1 Be2 Nh1 Bf3 Rg5 Qb1 Rc7 Qg6 Ra7 Be7 f8R Qe8 f7 Nf6 g8B Nfd7 Rh5 Bd8 Rb7 Bc7 Rd1 Bb8 Ne4+ Ke7+ d6+ Ke6 Rg5 Rg7 Rg3 Kf5 Rd2 Kf4 Bh7 Qe6 Rh8 Ke3 f8N Qg8 d5 Rg4 Bg6 Ra7 Rh5 Rf4 Nh7 Rg4 Nef6 Rf4 Bd3 Re4 Rc7 Rb7 Ne8 Ra7 Bdb5 Rb7 Kg1 Ra7 Bc6 h2+ Kf1 h3 Rhg5 Nf8 d7 Rb7 d8R Nfd7 Nd6 Ra7 Re8 Rb7 Ree5 Ra7 Nf2 h1Q+ Rg1 Qh2 Nh1 Qf4 R1g3 h2 Rh5 Qh6 Reg5 Ne5 Rf7 Rc7 Rfg7 Ned7 Rg1 Bd1 Kg2 Bg4 Nf2 h1Q+ Kg3 Be2 Rg2 Qf1 Kh2 Bf3 R5g3 Qe2 Rg1 Qd1 Nh1 Qc1 R3g5 Qa1 R1g3
3q2B1/R4R1P/1R2k3/2R1n1pn/n4q1b/Q2N1rPK/3bbB1p/3NRrNB b - - 0 1 illegal: No proof kernel
1R4qB/4BN1P/1p1N1r2/b2Pnb1q/N1pr1R1k/4NQb1/5R1N/KBnq4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 d4 Kf6 Kd2 c5 Kc2 g5 Kb2 e5 a4 e4 h4 g4 a5 g3 d6 c4 d5 b3 a6 e3 d7 g2 h6 e2 h7 e1B h5 Qb6 d8N Qf2+ Nd2 Qe3 a7 Qf3 h6 Nd7 Nf7 Qg4 Bd3 Qg3 Nd6 Qg4 Rb1 Qe2 Rh2 Qe8 Qf3 Bg3 Nf1 Qe6 Ka1 Qe8 Bb2+ Ne5 Ne3 Ne7 Bc3 Rg8 h8N Nc6 h7 Rg4 Nhf7 Nd4 Rf1 Rb8 a8N Ne2 Bb1 Nc1 Nb6 Ra8+ Na4 Ra6 Rh4 Rc6 Rf2 b6 Qd1 Be7 Nf3 g1Q Nh2 Qg8 Qf3 Qd1 Nb7 Bb4 Nbd6 Ba5 Bd4 Qd3 Bb2 Kg7 f6+ Kg6 Bd4 Bf5 Bc3 Qd1 Bb2 Rg5 Rg4 Kh5 Bc3 Bd3 f5 Qh1 Rf4+ Rg4 Nh8 Be4 f7 Kh4 f6 Bf5 f8R Qd1 f7 Qe2 Nb7 Rf6 Rb8 Qd1 f8B Qe2 Bd3 Qd1 Nd6 b2+ Kb1 Qe2 Nhf7 Qd1 Bg7 Qe2 Bb4 Qd1 Bh8 Qh1 Kc2 b1Q+ Kc3 Qd1 Be4 Qbd3+ Kb2 Q3f1 Bb1 Qh3 Rd4 Rf4 Ka1 Qhg4 Bc5 Qh5 Re4 Rg4 Rf4 Qgg5 Nc8 Bc2 Rf5 Rd4 Be7 Qg8 Ncd6 Bd3 Neg4 Be4 Rf4 Bf5 Ne3+
1RkbB3/r2qrP2/2p3q1/QnnNp3/2b2N2/Br1bRK2/2NP1B2/1R2N2N b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 g4 a5 b4 h5 f4 e5 b6 a4 d6 h3 g5 h2 b7 a3 g6 a2 f6 h4 f5 h3 f7 Bg7 f8N+ Kc6 f6 Ra3 b5+ Kb6 f7 Bf5 d7 Qf6 d8N Rg3 Nc6 Rg4 Nd4 Rgh4 Nc3 Ne7 Ne4 R4h6 Ba3 Nd7 b8B Kb7 b6 Nc5 Ng3 Nc8 Ngf3 Na7 Rb1 a1R Qa4 Kc8 Nfe6 Nb5 Nf4 Re8 Qa5 Re7 Ne1 Bd3+ Kf3 c6 Ndc2 Qg5 Ba7 Bf6 g7 Qg6 g8N Bh4 Rg1 h1B+ Bg2 h2 Nf6 Bg5 N6d5 Rh3 Rf1 Bh4 Rf2 Bg5 Re2 Ra2 Re3 Bf6 Kf2 Bc4 Bf1 Be4 Nh1 Bed3 b7+ Kd7 Ng3 h1Q b8R Qhe4 Be2 Qef5 Nh1 Rg3 Bg4 Qe6 Rb7+ Kc8 Bf5 Qd7 Bb6 Rg4 Kf3 Rb2 Ba7 Rb3 Rb6 Re6 Rb7 Bd8 Rb6 Re7 Rb7 Qde6 Rb8+ Kd7 Nfg2 Na6 Qb4 Rh4 Bd4 Nc5 Re2 Rg4 Bf2 Rh4 Rb6 Kc8 Re3 Re4 Ngf4 Rd4 Nc7 Rdd7 Ncd5 Rb7 Qa5 Ra7 Rb8+ Kd7 Nb6+ Kc7 Bg4 Qd6 Bd7 Qde6 Be8 Qef5 Rc8+ Kb7 Nd5 Qd7 Rc7+ Kb8 Rb7+ Kc8 Rb8+
q6N/1Bbr1pk1/6q1/NP2Br2/b3R3/RNRn1pqr/K3QB1P/N2N3n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 a5 Kd2 g5 Kc2 c5 Kb3 g4 e4 c4+ Ka2 a4 b4 g3 b6 a3 b7 g2 h6 c3 d6 f3 d7+ Ke7 e5 c2 d5 Rh7 e6 Kf6 e7 Qa5 e8R Rg7 d8N Rh7 d6 Be7 d7 Bf8 Nd2 Qc7 Re4 Bd6 Nb3 Nc6 b8B Ra7 Ne2 g1Q Ne6 Nge7 d8N Bd7 Nb7 Nf5 Nec5 Qg6 Be3 c1R Nc3 Ne5 N7a5 Ba4 Ba6 Nd3 b5 Ng3 Qe2 Be5 Rg1 Nh1 Bf2 Rh8 h7 Kg7 Rg2 Qd6 Rg1 Rd7 Nd1 Qg3 Re1 Qdg6 Bb7 Bc7 Rf1 Rc3 Rc1 Rc4 Na1 Rcd4 Rc3 R4d5 Re1 Rf5 Ncb3 Ne5 Kb1 a2+ Kb2 Nd3+ Ka3 Re8 Re3 Re4 h8N Rh4 Re4 Rh3 Rg1 Qf4 Rg4 Qe5 Re3 Qg3 Rge4 Bb6 Bf4 Bc7 Be5+ Rf6 Nc5 Kh7 Nc2 Rf5 Rb3 Nf4 Rec3 Nd3 Nc4 Kg8 Rb2 a1Q+ Ra2 Qb1 Na1 Bb3 Rb2 Bc2 Rbb3 Qc1+ Ka2 Qd2 Ra3 Ba4+ Rc2 Qa5 Rcc3 Qa8 Na5 Kh7 Ncb3 Kh6 Bf4+ Kg7 Be5+
1k4BK/r2PnNRp/Bp1BnR2/1Bq4P/n1bQ4/5Rq1/1NN1rb2/4b1B1 b - - 0 1 illegal: No possible last move, all moves rejected
1RKn2Rq/3p4/4B2n/RRkPbQnp/1bq2N1N/2B2R2/1P3rB1/3q1rN1 b - - 0 1 illegal: No possible last move, all moves rejected
r1Rr1Nb1/BpB1kN1r/b1nBp1Rq/1P6/8/1NR1Q3/1N5P/bNq1nK2 b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 Nd7 cxd5 Nb8 g3 Kd7 g4 Ke8 b4 h5 gxh5 a5 Bc4 a4 Bb3 axb3 Nc3 c5 d4 g5 f4 c4 a4 e6 h6 b2 d6 b1B h7 g4 f6 g3 f5 g2 d5 Nh6 a5 Kd7 a6 Nf7 a7 Be4 Qe2 Qe7 Ra3 Qe8 Nb1 c3 Be3 c2 Nf3 Bd3 Nd4 Nd8 f7 Na6 f6 Bc4 Rg1 Bh6 f8B Nc6 f7 Rb8 a8N Nc5 Nb6+ Kd8 d7 Rg8 h8R Ba6 b5 Bg7 Na4 Ra8 Rd3 Bf6 Nb3 Ba1 Nb2 c1Q+ Kf2 Rg7 Rc3 Rh7 Bd4 Qe7 Qe3 Qf6+ Ke2 Nd3 Ba7 Ne1 Bfc5+ Kc7 d8N Bd7 d6+ Kc8 Ba3 Be8 d7+ Kc7 f8N Qh6 Ng6 Bf7 Re8 Rh8 Nf8 Rh7 Be7 Bg8 Nf7 Rb8 Kf2 Ra8 d8B+ Kc8 Ng6 Kd7 Bc7 Nf3 Rc8 Ne1 Bed8 Ke8 Be5 Kd7 Nf8+ Ke8 Bdc7+ Ke7 Rf1 g1R Ke2 Rg4 Rf6 Ra4 Rg6 Rd4 Kf1 Rd8 Bed6+
R2qNr1N/1n3r2/B1KbQ2r/1p1r2R1/2n1pB1R/PNr4P/bR4B1/R2k4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 Kf6 Kd4 b5 Kd5 e5 c4 g5 f4 e4 h6 g4 h7 b3 Nc3 g3 Nge2 g2 Nd4 g1R c6 d6 c5 b2 a3 b1R Qg4 Qd7 c7 Rb3 c6 Na6 Bg2 Nc5 Bd2 Bb7 c8R Rf1 Rb8 Bc8 c7 Nh6 Qg8 Ra7 Ra8 Qd8 Kc6 Be6 c8B d5 Ba6 Bd6 Be3 Rf3 Rhb1 Rg7 h3 Nb7 Rb2 Ng4 Bc1 Ne3 Qe8 Rhg8 h8N Rh7 Qd7 Rh6 Qc8 Kg7 f6+ Kh7 f7 Rg7 Na4 Rc3+ Nc5 Rg8 Nf5 d4 f8R d3 Re8 d2 Ng7 d1R f5 Ba2 f6 Rd5 Re5 Nc4 f7 Rf4 f8R Rf5 Nf7 Kg6 Ne8 Kh5 Be3 Kh4 Nh8 Kg3 Qe6 Rf3 Bd2 Kf2 Rf4 Ke2 Rg5 Rf8 Rh4 R3f7 Bc1+ Ke1 Nb3 Kd1 Bf4+
BN2b1N1/1r3RB1/4PN2/3R2K1/k1qbrN2/Q1b1b3/ppPBNn1n/2R3b1 b - - 0 1 illegal: No proof kernel
NN1R1r2/n1nn2k1/3P4/1p2bRqr/1K1nB3/n4p1b/1BRP1NQ1/1B1B1B2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h4 f5 a4 Kf7 e4 g5 a5 b5 h6 c5 d6 c4 h5 g4 e6+ Kf6 e7 f4 e8B b3 h7 c3 h6 b2 e5+ Kg5 a6 c2 a7 g3 e6 Kf6 e7 g2 Qf3 Qd7 Nh3 g1N Bg6 Qe8 Na3 b1N Nf2 Bf5 Rh5 Nc3 Ra2 Nd7 Qg2 Nb8 Bb2 c1N Nc4 Bd7 Nb6 Na6 Bb1 Qg6 e8B Nc7 Bf7 f3 Bb3 Nce2 Bd1 Rb8 a8B Bh3 Bae4 Bg7 Na8 Rf8 Re5 Kf7 Rg5 Nf6 Rf5 Rhg8 h8R Nd4 h7 Qg5 Ra6 Kg6 Rc6 Nd7 Rc4 Be5 Rc6 N3d5 Rc2 Rg7 Rg8 Ne7 h8N+ Kh6 Ng6 Nc8 Rh8+ Rh7 Ne7 Na7 Nc6 Nge2 Nb8 Nc3 Rg8 Rc8 Re8 Kg7 Rd8 Rh5 Bde2 N3d5 Kd1 N5b6 Kc1 Nc4 Bd1 Rh6 Bc3 Na3 Kb2 Rh5 Ka2 Nde6 Kb3 Nd4+ Kb4 Nf6 Rh8 Rf8 Ba1 Nd7 Bb2 Rf7 Rc8 Rf8 Rd8
rrr1R3/2k4K/2rP3p/b2rq1B1/1n1p1N2/3B1bQ1/1PR5/N1BNNNRn b - - 0 1 illegal: No possible last move, all moves rejected
3N2nR/2B2p1B/1P1QB3/2KN2Rq/1rb1BR2/2b1Pp2/1Br2bkN/bbn5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 Kd6 d4 a5 b4 h5 b6 c5 g6 a4 b5 h4 b7 h3 g5 h2 g7 a3 g6 c4 b6 a2 Bb2 c3 Bh3 c2 Be6 c1B Nf3 Qg5 Nc3 Bd2 Rg1 h1B Nh2 Qf5 Rg5 Nd7 b8B+ Ke7 d6+ Kf6 d5 Ke5 Bc7 Nc5 d7+ Kd4 d8N Be4 d6 f3 d7 Ra4 Rc1 Bb1 Nd5+ Ke4 Rc3 a1B Rd3 Bd6 Rd4+ Ke5 Rh4+ Bc3 Ke3 Nb3 Rf4 Rb4 Qd2 Nc1 Qd1 Ne7 g8B Ba6 g7 Bc4 Bh7 Ng8 Bg6 Rh3 Qd2 Rg3 Qd3 Rg2 Qd1 Ne7 g8B Rf2 B8h7 Ng8 Nb7 Rg2 d8R Rf2 Rg3 Qh5 Be4 Rf1 Qd3 Rd1 Re8 Rd2 Nd8 Rc2 Rf8 Nf6 Rh8 Ng8 Rg2 Qh4 Rf6 Rd2 Ne7 Rc2 Rg4 Qh3 Rfg6 Qh5 R6g5+ Kf6 Rh4 Bg3 Qd6 Be1 Rg2 Bg3 Nd5+ Kg5 Rg1 Rb5 Rf4 Rb4 Ng4 Kh4 Nh2+ Qg4 Rg2 Kh3 Rg1 Qf5 Rg2 Bh4 Rg6 Qg4 Rg7 Kg2 Rg5 Bce1 Kd4 Bhf2+ e3 Bd2 Re5 Bc3+ Kc5 Qh5 Rg5+
Nrr1nN2/2p1BPR1/B4rr1/k1q5/rB1Bp2b/1RPB1nN1/3R1bK1/7Q b - - 0 1 legal: proof: g4 b5 e4 g5 a4 f5 axb5 d5 gxf5 g4 h3 g3 Bd3 Be6 Be2 dxe4 Bf1 Bf7 Rh2 Bh5 Rh1 Bg4 hxg4 Qd6 Nh3 Qd5 Ng1 Qd8 b4 Kd7 f4 a5 d4 e5 f6 h5 f7 g2 Kf2 h4 g5 a4 f5 a3 g6 a2 g7 h3 f6 h2 c3 Bd6 f8N+ Kc8 b6 Kb7 b5 Qe7 f7 Ra7 d5 Qe6 Ba3 Qe7 Nd2 Nf6 g8B Nh5 Ne2 g1B+ Kg2 e3 Ng3 e2 Bh7 e1R Nc4 Nd7 Bhd3 Bf2 Rg1 h1R Qf3 e4 Rd1 a1R Rd2 Bf4 d6 Ne5 d7 Rab1 d8B Qc5 Be7 Ng7 Qh5 Rh4 Bfe2 Rg4 Qh1 Ra4 Bf1 Kb8 b7 Ka7 b8R Rg6 b6+ Ka6 b7 Nf3 Nb6+ Ka5 Na8 Bg5 Ba6 Bh4 Bfd3 Bf6 Re8 Rec1 b8B Bh4 Ba7 Rf1 Rb8 Ne8 Rb7 Rbb6 Rb8 Rfb1 Rb7 Rbf6 Rb3 Qh5 Be3 Qc5 Bd4 Nd6 Nh7 Rc8 Nf8 Ne8 Rbb2 Qh5 Kh3 Rd6 Ne2 Rge6 Rg7 Rg6 Ng3 Qc5 Kg2 Rdf6 Rb8 Rbb6 Rb7 Rbe6 Rb1 Rb6 Rb3 Rbb8 Bb4+
4B1Kb/k7/b1r1Rr2/Q1p1q1N1/2NB4/2b1P2P/prn2r2/N1NNBRnR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb6 b4 f5 d4 g5 h6 a5 e3 a4 h7 g4 h3 g3 d6 f3 d7 f2 Ke6 g2 Kf7 f4 d5 a3 d6 a2 Qa4 f3 Qa5+ Kb7 b6 Bh6 b5 Ne7 Ne2 g1B Nbc3 Bf4 Bd2 Nf5 Be1 Nc6 Nc1 Nce7 Nd1 Rg8 h8B Rg6 Bd4 Qc7 d8R Nc6+ d7 Nb4 Re8 Qe5 Re6 Nc2 d8N+ Kb8 b7 Nh4 Kf8 Bgh2 Nf7 Bhg3 Be2 f1R Ng5 f2 Bh5 Nf3 Kf7 Rf6+ Kg8 Ra6 Be8 Ka7 b8N Ng1 Nd7 Bh4 Nb6 Bh2 Bb4 Re1 Bbc3 f1R Nc4 Re2 Be1 R1f2 b6+ Ka8 b7+ Ka7 Qd8 Rc6 b8N Ba6 Qa5 Bf4 Ne4 Bh6 Ng5 Bg7 Rb1 Bh8 Ra1 Na3 Rb1 Rb2 Ra1 Rc8 Rb1 Nc2 Nc6+ Ka8 Nb4 Ka7 Nbd3 Rc6 Nb3 Bg3 Na1 Bf4 Nf3 Bh6 Nc1 Bf8 Ng5 Bd6 Qa3 Bc7 Qb4 Ba5 Qa3 Bb4 Qa5 Bc3 Bd2 Ka8 Ne2 Bb4 Ndc3 Kb7 Rf1 Kb8 Nc1 Ka7 Nd1 Bc3 Be1
b1Rkr2n/1Q1B4/rN1n3p/NnRRP3/r5BN/1pPK4/1B6/q1N1N1br b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kd2 b5 a4 d5 g4 f5 e4 h6 c6 f4 g6 d4 c7 b3 a5 f3 g5 b4 e6 f2 e7 d3 a6 b2 c3 b3 a7 Rh7 g7 Bf5 c8R Nf6 g8N Bh3 e5 Bg2 g6 Na6 g7 Nd7 Ra5 Nac5 Be2 f1R Bg4 Rf5 Qf3 Rf4 Na3 Ra4 Ne2 Nb7 Nc2 Nd6 Rd1 Rh8 Rac5 b1N+ Ke3 d2 Kd3 Bh1 Ne1 Na3 Qb7 Nab5 Bb2 Bf3 Nc1 Ra6 R8c6 Qa5 Rc7 Qa1 R7c6 Rc8 a8N Ra4 Nb6 Rca8 Rc7 R8a6 R7c6 Nb8 Rc7 Nc6 Rc8+ Nd8 Nc4 Bh1 Nf6+ Kf7 Nd5 Ke8 g8N Bf3 R8c7 N8f7 Ndb6 Bd5 Qa7 Ba8 Qb7 Rh7 Na5 Nh8 Qd5 Rg7 Qf3 Rg6 Qb7 Re6 R7c6 Bg7 Rc7 Bf6 R7c6 Bg5 Rc7 Be3 Rc8+ Kf7 e8B+ Kf8 Rb8 Bg1 Bd7+ Re8 Ne7 Kf7 Rbc8 Kf8 Ng6+ Kf7 Nh4 Ke7 R8c7 Kd8 Rd5 Qa2 Rcc5 Qa1 Nc2 Qa3 Rf1 Qa1 Rf8 d1R+ Ke2 Rd3 Ne1 Rh3 Rg8 Rh2+ Kd3 Rh1 Rg6 Nf5 Rgc6 Nfd6 Rc8+
1n1brrk1/1n1R2nb/N1B1pRNP/R1NB3p/2KN4/N1P5/3B4/b2Qb2q b - - 0 1 illegal: No proof kernel
3KN2N/1R1br1NN/R1P1rnnQ/Bk6/3B1bBR/P1pp4/2q1N1r1/4b1r1 b - - 0 1 illegal: No proof kernel
N4b2/1nKB3N/P3r1rk/pP3Nq1/1p1R1B2/1R1B2B1/B1Q2b1n/1b3Rnn b - - 0 1 illegal: No proof kernel
1Q3NR1/B1r2npb/7q/1p6/BBN1k3/K2n1bRP/Br3RP1/n1b1NnB1 b - - 0 1 legal: proof: c4 a5 b4 axb4 e4 h5 Qxh5 d5 cxd5 Bd7 Qh7 f5 exf5 Bc8 Kd1 Kf7 Kc2 Kf6 Kb2 Ke5 d4+ Ke4 a4 e5 f4 c5 a5 b3 f6+ Bf5 d6 b6 d7 c4 h3 Qe8 d8B Qg6 a6 Qg5 f7 Qg6 a7 Nf6 d5 Bb4 f8B Nc6 d6 Ng4 d7 Nh2 Be3 Qh6 Nf3 Bd2 Qg8 c3+ Ka3 c2 Bg1 c1N Ne1 b2 Bb5 Nd3 Ba4 b5 Bdb6 Bc1 d8R Bg4 f5 Nf1 f6 Bf3 f7 Rc8 a8B Rc7 Ba7 Rh7 Rd5 Nd8 Bb4 Rh8 f8N Nf7 Nd7 Rc2 Qb8 Rhc8 Nf8 R8c7 Bb7 Rf2 Bc8 Re2 Rd8 Rf2 Be6 Re2 Ka2 Rec2 Na3 b1B+ Kb3 Re2 Nc4 Rb2+ Ka3 Kf4 Ba5 e4 Rc8 e3 Bb4 e2 Re8 Ke4 Rd8 Bg5 Re8 Bc2 Rc1 Bb1 Rc3 Bc1 Rd8 Nc5 Re8 Nb3 Rd3 Na1 Rc8 Bh5 Rg3 Bf3 Nh7 Be3 Ne5 Rb7 Bh2 Kf4 Rg8 Rc7 Ba2 Nd2 Nf8 Bh7 Nc2 e1N Rf1 Nd3 Ne1 Ke4 Rf2 Nf1 Bg1 Bc1 Nc4
2b3B1/Q1P1N3/B1K1RBpb/B1R1P3/1k1r1r2/b2nqN1p/1B1b3n/1n3RN1 b - - 0 1 illegal: No proof kernel
1bK5/Pr2rq2/1BnBk1bR/2p3nP/n2BR3/2n1Np2/3bNB1N/3R1Q1B b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h6 Kd7 Kf2 c5 Ke3 b5 Ke4 g5 Kf5 f6 a4 b3 d4 b2 e4 g4 h4 g3 a5 b4 h7 b3 a6 g2 d6 Qe8 e6+ Kd8 a7 Qb5 e5 Qe2 d7 Ke7 d8B+ Ke8 d5 Ba6 d6 Qc4 e7 Kf7 e8N Qb5 d7 Qe2 Be3 Bd6 Nd2 b1N Ndf3 b2 Bc7 Qc4 d8B Nc6 Ne2 g1B Ng7 Rb8 Bg2 Rb7 Qf1 Nc3 Be7 Na4 Bb6 Bb8 Bd6 Bh2 Bf2 Bf4 Rh2 b1N Bh1 Nbc3 Rd1 Bg5 Rh3 Qa2 Nh2 Bb5 Rg3 Qd5 h5 Bd2 Rg6 Ba6 Rh6 Bd3+ Kg4 Bg6 Nf5 Qa2 Ne3 f5+ Kg5 f4 e6+ Kg7 e7 Kf7 e8R f3 Kf4 Nf6 Re4 Re8 h8B Nh7 Bhe5 Ng5 Bd4 Ne7 Ke5 Qc4 Bdc7 Nc6+ Kd6 Re6+ Kd7 Re7+ Kc8 Qb3 Re5 Kf6 Bd6 Qf7 Rf5+ Ke6 Rf4 Bc1 Rg4 Bd2 Re4+
R4n2/PRRr3p/3nn2B/N1P3N1/2NQ1n1k/1B2p1Rb/2KBqb2/4Rb1r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 c4 e5 a4 d5 f4 b5 g4 b3 c6 b2 a5 b4 c7 b3 c5 d4 f6 Kg6 f7 d3 a6 e4 Nh3 Be7 f8B Qe8 Na3 b1B Bh6 b2 Nc4 Nc6 a7 Nf6 Ra4 Nd4 Rb4 Rb8 Rb7 Nd7 Be2 Rf8 Re1 Ne6 Qa4 Rf7 Bd1 Ba2 Bb3 b1N+ Kd1 e3 Bd2 Ndf8 Qd7 Qd8 Qd4 Na3 Na5 Bd7 c8R Nb5 Rcc7 Nd6 Kc1 Bb5 Kb2 Bf6 Kc3 Rd7 f5+ Kf7 g6+ Ke7 g7 Bh4 g8R Bf2 Bc1 d2 g5 d1N+ Kc2 Nc3 g6 Nd5 g7 Ndf4 Ng5 Bf1 Bd2 Qe8 Rh8 Qh5 g8R Qe2 f6+ Ke8 f7+ Ke7 Qe4 Kf6 Qd4+ Kf5 Rg6 Kg4 Rg7 Kh4 Rhg8 Ng6 f8N Rbd8 Nf7 Rb8 Ne5 Rbd8 Nec4 Bb1+ Kb2 Bf5 Rh8 B5h3 Kc2 Ng5 Ne6 Nf8 Rgg8 Rb8 Nd8 Nge6 Nf7 Re8 Rg1 Ree7 Ng5 Rg7 Ne4 Rg2 Ng5 Rh2 Rg3 Rh1 Rg8 Ng6 Rd8 Ngf8 Ra8
r1QB1RrN/b3NB1K/3n1kp1/q3B3/2bq2R1/rP1RP2B/1p2r1Bn/2N5 b - - 0 1 illegal: No proof kernel
rR4BN/3Prr1b/B2n1n2/pN6/kq6/1p2qr1b/BP1B3R/1N1K1BQR b - - 0 1 legal: proof: h4 d5 f4 b5 c4 g5 hxg5 e5 cxd5 exf4 a3 b4 Rh6 b3 Rh1 Bb4 axb4 Bd7 Ra4 Be6 Ra1 Bc8 g4 Kd7 e4 h5 d4 f5 e5 c5 d6 Kc6 g6 a5 e6 h4 g5 h3 d7 h2 g7 f3 e7 f4 e8B c4 d5+ Kb5 d6 Nh6 g8B Nf7 g6 Qb6 d8N+ Nd7 g7 Rh7 Ne2 c3 Bd2 c2 Ra4 c1Q Ra1 Rh6 Bh7 Re6 g8B Re7 Be4 Qc3 Qc1 f2+ Kd1 Qbe3 Nd4+ Kb6 b5 f3 Bb7 Nf6 Ba6 Bh3 d7 Nd6 Bg6 Qb4 Bc2 Kc5 Nf7 Kb6 Nh8 Kc5 Rg1 h1B b6 B1g2 b7 Bf5 b8R Bgh3 Bfd3 Bh7 Nb5 Kc6 Rg2 f1R+ Be1 f2 Rh2 Rh1 Bdc4 f1R Bg6 Rf3 Bf1+ Nc4 Bc2 Nd6 Bd2 Rf7 N1c3 Rg1 Bb1 Rgg7 Ba2 Re7 Qb1 Rgf7 Qg6 Kc5 Qg7 Qa4 Qg1 Kb4 Rc1 Qa3 Nb1+ Ka4 Rc4+ Qb4 Rh4 Be6 Rh1 Bef5 R4h2 Bg4 Rb7 Bh3 Rb8
2Q3B1/1knp2qB/N2NR1RB/P1r5/bKnP1NB1/B2b1b1p/4rq2/2b3R1 b - - 0 1 illegal: No possible last move
2kR1bnn/pRB2Nn1/P2p2b1/1r2q3/K3QN2/1B1N2r1/2P3B1/Rq2B1Bn b - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 f5 exf5 g5 b4 Na6 bxc5 Nb8 h4 gxh4 Kd2 h5 Kc3 b5 Kb4 h3 a4 h4 f4 h2 g4 h3 a5 Qf6 e6 Kd8 a6 Qh4 f6 Ne7 c6 Nf5+ e7+ Kc7 f7 Qf2 g5 Bg7 e8N+ Kd8 f8B Bd4 g6 Qh4 g7 Qg5 g8B Be3 Nf3 Qg4 Qd4 Nh6 f5 Qg7 f6 Nf7 Nc3 Rh5 Qe4 Bh6 Bg2 Nh8 f7 Qe5 Rd1 h1N Bf4 h2 Nd5 Ng3 Nd6 h1N Ne1 Nf5 Nd3 Ng7 Kb3 b4 Ka4 b3 Bg3 b2 Be1 b1Q N5f4 Ne6 Bg7 Rg5 f8B Rg3 Nf7+ Kc7 Bf6 Ng7 Bc5 d6 Bg1 Bd7 Bd8+ Kc8 Bc7 Bf5 Rc1 Bg6 Rd1 Qb6 Rdb1 Nd7 Rb4 Qb8 Rb7 Nf6 Ng5 Nge8 Bb3 Bf8 Nf7 Ng7 Bcb6 Ng8 c7 Kd7 c8R+ Qc7 Re8 Rb8 Re7+ Kc8 Rd7 Qcc5 Bc7 Qb6 Bd5 Qbb2 Bb3 Qb1 Rb4 Rb6 Rb5 Rc6 Rb4 Rc5 Rb7 Rb5 Rd8#
1Nb1bN2/N3n2K/pb1R2Bb/PQBR1pb1/3rn3/k3nPq1/5B1B/B4R2 b - - 0 2 illegal: No possible last move, all moves rejected
5q1r/bKRR1P2/BN2qpb1/QR2pP2/q2N1R1R/8/r2qn2q/B1Bk1N2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f6 axb5 Nc6 e5 Kd7 e6+ Ke8 Na3 Ne5 Nb1 Nf7 exf7+ Kd7 Ke2 Kd6 Kf3 Ke5 g4 Kd4 b4 h5 g5 c5 b6 a5 b5 e5 g6 h3 d6 h2 d7 a4 b7 a3 b8N h4 b6 c4 g7 a2 b7 h3 Ne2+ Kd3 Qe1 Kc2 Ke4 c3 Kd5 Qa5+ Kc6 Rh4 d8R Bb4 f4 Rh8 d4 Qa3 d5 Bf8 d6 Ra5 d7 Nh6 g8R Bc5 Nd2 Ba7 Rg4 Qf8 Rb1 a1Q Rb5 Qaa3 Re8 Qab4 d8R Ra2 Rd7 Nf5 Ree7 Ng3 Rc7 Qa3 Nd7 Qa4 Nb6 Bf5 b8B Bd3 Red7 Bg6 Ng1 Ne2 f5 Rh4 Rf4 Rh8 Qf2 Kd1 Kb7 c2 Ngf3 Qfa3 Nd4 Qf8 Bb2 c1Q Ba1 Qcc4 Qe3 Qe6 Qc3 Qee7 Qa5 Qe6 Rg1 h1Q+ Rg2 Qg1 Rgg4 h2 Rh4 Nc1 Bc4 Ne2 Nf1 h1Q+ Rc6 Qf2 Bd6 Qhg1 Rb4 Ng3 Rcc7 Qe2 Ba6 Qgh2 Rb5 Qd2 Ba3 Ne2 Bc1
1RBr1R2/b2bk2K/1Qn4N/R4P1b/q4bpb/Bq2R1BR/1pn1N1P1/2N5 b - - 0 1 illegal: No possible last move
1N3NNn/p3b2p/4n2P/2q1r3/K1P2q1k/3n1R1q/1q3BBB/Q1RR1NNr b - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 gxf5 b5 axb5 Nh6 e4 Ng4 f4 Nh6 f6 Kf7 e5 Ke6 f5+ Kd5 Ra6 Ng8 Ra1 Bb7 e6 Kd6 Bg5 Bf3 Bd2 Bh5 Bc1 Bf7 exf7 Qc7 Nd2 Qc8 Nb1 Qd8 Kd2 Ke5 h4 Kf4 b4 Kg3 c4 g5 Kc2 d5 Kb3 e5 b6 d3 b5 e4 b7 d2 b6 e3 h5 g4 h6 e2 Rh2 e1N Rh5 d4 Rg5 d3 Qc2 d1Q Be2 d2 Ka4 Qc7 Bf1 Nd7 b8B Qf4 b7 Kh4 Bg2 Qdf3 Qa2 Be7 f8N g3 f7 Nd3 f6 Qf2 Be5 Rd8 b8N Qb6 Bc7 Qb2 Rd5 Re8 Bb6 Rd8 Bf2 d1Q+ Qb3 Qde2 Qa2 Qeg4 Nd2 Qh3 Nf1 Re8 Rb1 Rd8 Qa1 N7c5+ Ka5 Rd6 Nfd7 Ne6 f8R Rb6 Rd6 Rb5+ Ka4 Re5 f7 Re1 Bfe3 Rd1 Nf6 Re1 Bh1 g2 Bcd2 Rd1 Rc1 Re1 Bc3 Rd1 Be5 Re1 Ne2 g1Q Bg2 Rd1 Bb6 Qc5 Rd7 Bd6 Rdd8 Ne7 Ng8 Ng6 Ng1 Be7 Bec7 Qff3 Bh2 Qf4 Rd5 Re1 Rf5 Re5 Rd8 Re1 f8N Re5 Nf6 Rg8 Rd5 Rg7 Ng8 Nh8 Rd7 Qe4 Rf3 Qf4 Ba5 Rgg5 Bc3 Re1 Bd4 Rge5 Be3 Nb4 Rdd1 Nd3 Ng3 Rf1 Bf2 Rfe1 N1e2 Rh1 Nf1+ Kg5 Ng1 Kg4 Bd4 Kh4 Bf2+
BB3r2/Rn1pp1B1/q3Pb1b/nnqRN2Q/b4RbR/3P2k1/3K4/R2N2N1 b - - 0 2 legal: proof: g4 c5 h4 f5 a4 fxg4 b4 b5 axb5 Kf7 bxc5 Ke8 Nh3 g5 Ng1 a5 Rh2 g3 Rh3 g4 Rh1 Ra6 Ra3 Rg6 Ra1 Rg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 c4 Kf7 f4 Kg6 e4 h5 b6 a4 c6 h4 b7 Kh5 d3 a3 c5 a2 g6 h3 c7 Kh4 g7 g2 f5 g3 c6 h2 f6 Nh6 g8R Nf7 e5 Nd6 f7 Bh6 Rg5 Rf8 e6 Na6 b8N Bb7 c8R Qb6 c7 Bc6 Kd2 Nb5 Nc3 Nc5 Rd8 Qa7 c8R Qa6 Rc7 Nb7 Qe2 Bf3 Nd1 Bh5 Nc6 Bg4 Nh3 g1B Ne5 Bd4 Ng1 Bb2 Bg2 Bd4 Be4 g2 Rc4 Kg3 Ra8 Bb2 Ra7 Bd4 Bd5 Bb2 Rf4 Bd4 Ngf3 g1Q Ba3 Bb2 Bd6 Qc5 Bb8 Bd4 Rh5 Bb2 Rh4 Bd4 Rf1 h1B Ng1 Bg2 Bc6 Bd5 Re1 Bb3 Bd5 Ba4 Rf1 Re8 f8B Bb2 Bg7 Rf8 Ng6 Bf6 Ne5 Bf5 Qh5 Bg4 Rb1 a1N Bh1 Nc2 Ra1 Nb4 Re1 Nc6 Re4 N7d6 Rd4 Na5 Ba8 Ndb7 Rd5
3qB1N1/KNB1B3/6R1/1Rn1b1q1/B4N2/p2Ppb2/BbQrPn2/kbn2R2 b - - 0 1 legal: proof: c4 b5 g4 a5 h4 d5 cxd5 g5 f4 gxf4 a4 Nf6 axb5 Rg8 g5 Rh8 h5 Ra6 Kf2 Ng8 Ke1 Rg6 hxg6 Bh6 Kf2 Bg7 Ke1 Bf8 Kf2 Qd7 b4 c5 g7 h5 g6 f5 b6 e5 b5 Ke7 b7 Kd6 b6 c4 Qc2 Kc5 d6 Kb4 Bh3 c3 Bg4 h4 Qd3 Kb3 Kf3 a4 Kf2 h3 Qg3 e4 Bh5 f3 Ke3 h2 Kd4 a3 Kc5 f2 Qd3 f1Q Nh3 f4 Rg1 Nh6 g8B+ Nf7 g7 h1N Bh7 f3 g8B f2 Bb2 e3 Nf4 Qg2 Be4 f1B Bc6 Qdh3 Bb5 Bg7 d7 Bf6 d8N Qh4 Qe4 c2 Nc3 c1B Ncd5 Qg6 Ne7 Nf2 Rg3 Bg7 Bf6 Bb2 Re1 Ka2 Ba4 Bfh3 Rf1 Bcf5 Kb5 Na6 b8B Bhg4 b7 Qh6 Kb6 Bf3 Bc7 Nc5 b8R Bh7 Ka7 Qg6 Nde6 Ne5 Rb5 Ned3 Rg2 Nc1 Nd8+ Ka1 Ba2 Qh6 Nb7 Rd8 Be8 Rd6 Bg5 Bge5 Ng8 Rd5 Qc4 Bb1 Qc2 Qf6 Rgg1 Qd8 Be7 Rd3 Rg6 Qg5 Qc4 Rc3 d3 Rc2 Qb3 Rd2 Qc2
7r/N2Nn2P/QBR3N1/N3pb1q/1K1pk3/6nR/qR1P1b2/b1NBB1nb b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 b5 gxh5 Ra7 c4 Rb7 Bh3 axb4 Bf1 b3 Bd3 b4 Bf1 Rb5 cxb5 Bb7 Qc2 Ba6 Qd1 Bc8 f4 Kf7 a4 Kf6 h4 c5 a5 e5 h6 g5 h7 d5 h5 c4 a6 g4 h6 d4 b6 c3 a7 c2 a8R b2 b7 g3 Be2 b3 R8a2 g2 Na3 b1Q Rb2 Bd7 Nc4 Qc7 Rh3 Bb4 Na5 Nc6 b8N Na7 Nbc6 Nb5 Na7 Kf7 f6 Kg6 f7 Kf5 f8N Nc3 Ng6 Ke4 f5 Bc6 f6 Bd7 f7 Ba3 f8N Bg4 Nd7 Qa2 Bf3+ Kd3 Ne2 g1N Kf2 Qb6 Qf1 Ne4+ Ke1 Ne7 Rab1 Rb8 h8B Bf5 h7 Ng3 Bf6 Rh8 Bh4 Be4 Bg4 Bh1 Qf6 Qd8 Qa6+ Ke4 Bh5 Qe8 Kf2 Ngf5 Kf1 Bd6 Be1 Ng3+ Kf2 Bc7 Ra1 Bd8 Bg4 Qb1 Ra4 Qa1 Rc4 Qa2 Rc6 Qf7+ Nef4 Qf5 Bd1 Qh5 Nd3 Nf3 Rb1 Ng1 Ba3 c1B Bc5 Bb2 Bb6 Ba1 Nc1 b2 Nb5 Nc8 Na7 Bh4 Rd6 Ne7 Rc6 Ngf5+ Kf1 Nf3 Ke2 Bf2 Ba4 Ng3+ Kd1 Qd5 Kc2 Ng1 Bb3 Qg8 Ba4 Qa8 Kb3 Qg8+ Kb4 Qa2 Bd1 Ra8 Ne2 Rh8 Rbc1 b1B R1c2 Kd5 Rb2 Bf5 Nc1 Ke4 Qf1 Ra8 Qb5 Rh8 Qa6
1n1rrB2/5pP1/3qq1pK/3BQRN1/5P2/1q3krN/1RB1RNR1/1R1bn2q b - - 0 1 illegal: No proof kernel
q1Brb1q1/1RQ5/R4N2/pkqR2Pr/1n1B1BR1/1pb2N1r/PR5q/2K3N1 b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Nc6 h4 Nd4 Qd2 Ne6 Qd6 fxg4 Qd1 g3 Bd2 g4 Bc1 Ng5 hxg5 Kf7 Nc3 Ke7 Nb1 Ke8 Kd2 d5 f4 Kd7 c4 Kc6 e4 h5 e6 b5 e5 a5 f5 h4 f6 g2 e7 h3 e8N g3 e6 h2 f7 d4 e7 b4 Nf6 b3 e8R d3 Re4 Bg7 f8B Qe8 Rg4 Ra6 Qc2 Bh6 Bg7 Kb7 c6+ Kb6 c7 Bd7 c8R Ne7 c5+ Kb5 c6 Qg8 c7 Be8 Ra8 Nd5 c8R Nb4 Rc6 Rh7 Bh8 Bg7 Ra7 Rh5 Rd6 Rb6 Qc7 Rb8 Be2 Rd8 Rda6 Rh3 Bf3 Rh5 Kd1 d2 Bb7 Rd3 Bc8 Rc3 Ke2 d1R Bf4 Rd8 Nd2 Rcd3 Kd1 Rf3 Nd7 Bc3 Bd4 Rd3 Kc1 Re3 Nh3 Rd3 Re1 g1Q Nf3 h1Q Rb1 g2 Rb2 Qgh2 Nf6 g1Q Rd1 Qgf2 Nhg1 Re3 Nh4 Rh3 Nhf3 Q1g2 Bde5 Qc5 Rd5 Qe2 Bd4 Qe4 Re5 Qc6 Rd5 Qa8 Rb7+
1r1N3B/bRbk3B/2nrrR1Q/1NpN3P/1R1b1NpK/N1Pn2B1/2b5/3r4 b - - 0 1 legal: proof: g4 h5 a4 hxg4 d4 e5 e4 b5 axb5 c6 f4 Rh5 d5 Ke7 d6+ Kf6 fxe5+ Kg6 e6 Rh7 e5 Qe7 dxe7 Rh8 Kf2 Kf5 Kg3 d5 e8R a5 h4 g5 b4 d4 h5 d3 b6 d2 b7 f6 b5 a4 e7 Ke6 b6 f5 Bd3 a3 Rh4 a2 Na3 Kd7 Rb1 a1B Nh3 Nh6 Bb2 Nf7 Nf4 Rh6 Qc1 d1R Qd2 Bg7 Rf8 Re6 e8N Bf6 Nc7 Bd8 Ncb5 Bc7 Qc1 Rd2 Be4 Rdd6 Bd3 c5 Bd4 Nc6 b8B Bc3 b7 B3a5 c3 Bab6 Rb4 Ba7 Bb1 Nfd8 Rb2 Nb4 Rf6 Nd3 Rb4 Nc6 Rh2 Bd8 Rhb2 Bc7 Ba2 Re8 Bg8 Re7 Bh7 Ree6 Kg2 g3 Kh3 g4+ Kh4 g2 Qd2 g1B Qe3 Re8 e6+ Kd8 e7+ Kd7 Qc1 Be3 Be5 Bd4 Rb1 Rd8 e8N Re6 Nd5 f4 Ng7 f3 Qh6 f2 R1b2 Rd6 Ne6 f1R Nef4 Rd1 Rb1 Re8 R1b3 Bcb6 Bc7 Ree6 b8N+ Ke8 Nd7 Rb8 Nf8 Re7 Rb2 Bf5 N8e6 Kd7 Nd8 Ree6 Rf8 Nc1 Bh8 Bc2 Rf6 Nd3 Rc4 Ne1 Ng2 Be5 Nd4 Nd3 Rb5 Ba5 Rb7 B5b6 Ndb5 Bd4 Rb4 Ba5 Nde3 Rd5 Bg3+ Bc7 Nf4 Rdd6 Ned5
2QB4/k1RR2N1/BN2Kn2/Npp1p1P1/R2b3B/r1r1R1R1/nP5b/n1r3q1 b - - 0 1 legal: proof: e4 d5 a4 f5 h4 fxe4 c4 g5 hxg5 b6 cxd5 Bh6 a5 Bb7 a6 Bg7 axb7 Bf8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Kf5 a5 g4 e5 f4 h5 d4 e3 d6+ Kc6 d5+ Kd7 g6 a4 g7 a3 Ne2 h4 Nd4 h3 Nc6 a2 Ba6 h2 Na3 e2 Re1 h1N Nc4 b5 N6a5 Nc6 b8R Rh3 Rb7+ Kc8 Rc7+ Kb8 d7 Ra7 d6 Nf2 Nb6 Qg5+ Ke6 Nb4 d8B Rc3 d7 Nc2 f5 Nd3 f6 Ndb4 f7 Nf6 g8R Bh6 f8N Qg6 Be3 Bf4 Bf2 Bh2 Bh4 Qg5 Qd3 Qe3 Qf5 Qg1 Kf7 Ra8 Ne6 Ra7 Ng7 Ra8 Red1 e1B Rd3 Bf2 Ke6 Bd4 Re3 Ra7 g5 Ra8 Rf8 Ra7 Rg3 Ra8 Re1 a1R Ree3 Na2 Rf7 Rc1 Qh3 Ne8 Rf4 Na1 Qf5 Nf6 Rfg4 Ra3 Rge4 Bc3 Rb4 Bd4 Ra4 Rac3 Kf7 R3c2 Rc4 Ng4 Bc8 Rb1 Bf6 Rd1 d8R Ra7 Nb7 Ra4 Na5 Ra3 Ra4 Rdd3 Rd5 Rc1 Bd8 Nf6 Ba6 Rdb3 Qd7 Rbc3 Ke6 Qf1 Nb7 Qd1 Qc8+ Ka7 Rdd7 Qg1 Na5+
1rRbN2R/1nn1NNBR/r3p1B1/N4p2/3Q2n1/2b3Pq/pb2PB2/k2KN3 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 g5 fxg5 b5 axb5 Bd7 h3 Bg4 hxg4 Qd3 Ra5 Qd7 Ra1 Qd8 b4 Kd7 d4 Kd6 g6 Kd5 g5 h5 b6 a5 b7 f5 g3 c5 b5 c3 g7 Kc4 d5 e6 b6 c2 d6 Kb3 g6 a4 d7 c4 Bg2 h4 Qd4 c3 Bc6 a3 Be3 Kb2 Nd2 c1B Nb3 a2 Nf3 h3 Bf2 h2 Na5 Ra6 Kd1 Bg5 Rc1 Nf6 g8N Ne8 g7 Bb4 Ne7 Nc7 g8N Bh4 Bb5 Nc6 b8B Bf6 Rc2+ Ka1 b7 Qe8 d8N Qh5 Nf7 Nd8 Bd7 Qh3 Be8 Bg5 Nf6 Rf8 Rf1 h1N Ne1 Rg8 Ba7 Rh8 b8R Nb7 Nd6 Rg8 Bg6 Rc8 Ra8 Rb8 Nf7 Bh4 Ne8 Bf6 Ng8 Bbe7 Bc5 Bd8 Bf8 Bg7 Ne7 Bh8 Rb2 Be5 Bg7 c2+ Kd2 c1B+ Kd1 Bf6 Rc2+ Bb2 Ra7 Nb5 Rc8 Nc7 Be3 Bc3 Rf4 Be5 Rh4 Bf6 Rh8 Nf2+ Kc1 Ng4 Kd1 Be5 Bf2 Bb2 Qd5 Bec3 Qd2 Ne5 Qd4 Ng4 Nfd6 Na8 Bf8 Ba3 Nd5 Nc5 Rah7 Nb7 Nf7 Bab2 Ne7 Nc7 Bg7
1BR5/n3n3/Rp2N1k1/R2r1bBn/K2br3/PR5b/p3PN1p/R1NBqQ2 b - - 0 1 illegal: No proof kernel
N1r2R1q/1NN1R1kP/2B1K1B1/1N1pp1N1/pbb3R1/n2r1r2/2BP2b1/3Q2n1 b - - 0 1 illegal: No proof kernel
2B2Q2/nN1p4/pr1p1q1b/Kn6/4bN1b/3B1P2/1NP1rr1N/BRRRkN2 b - - 0 1 illegal: No possible last move, all moves rejected
4N3/p1p1b1nn/rB2nr2/P3Rk1N/1pb2P2/1N1Bb2K/1N5Q/BR1Nq2R b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 Qd7 c4 Qb5 cxd5 Qxb2 h4 Kd7 a4 b5 f4 g5 Kf2 e5 Kg2 g4 a5 b4 f6 g3 f7 e4 h6 e3 h5 e2 d4 e1N+ Kh3 g2 h7 Nf6 d6 Ke6 d5+ Kf5 d7 Ng8 d8R Bc5 f8N Qe5 h6 Qe4 d6 Qe6 d7 Qe8 Bd3+ Kf6 Qc2 Be3 Ne6 Bd2 Ng7 Ne7 Na3 Qg8 Re8 Qf7 Nh5+ Ke6 Ne2 g1B Rb1 Nc6 Nc3 Ba6 Nd1 Nf3 Nc4 Ncd4 Ncb2 Bde3 Qh2 Bc4 Bd2 Rg8 h8N Rg6 h7 Rb8 Be1 Rf6 Bf2 Qg6 Nf7 Qe4 d8N+ Kf5 h8B Rbb6 Ne6 Ra6 Nc5 Ne6 Nb3 Nfg5+ Kg3 Nh7 Kh3 Bc5 Bg7 Bd6 Bb6 Be3 Bh8 Nc6 Re7 Ng7 Re6 Be7 Nd6+ Kg6 Ne8 Nd8 Rd6 Nde6 Rd4 Nf5 Bg7 Qe5 Re4 Qc3 Bh8 Nfg7 Ra1 Qd2 Rb1 Qe1 Qd2 Rf7 Qh2 Nf5 Na4 Rf8 Ba1 Rf6 Nab2 Nfg7 Bd4 Kf5 Bc5 Bf8 Bb6 Be7 Re5#
1NR1r2B/5kn1/nB1r4/2p2p1p/NR4P1/BNP2bKb/1bq1Q3/N2q2NR b - - 0 1 illegal: No proof kernel
2N2NNB/5PrR/n1K5/2R3pq/r1B1n3/p2p1RN1/1BbP3q/2Qb1Nkr b - - 0 1 legal: proof: e4 f5 exf5 c5 g4 b5 b4 h5 a3 hxg4 Nf3 e6 Ng1 Be7 Ke2 Bf6 Ke1 Bc3 bxc5 b4 Ra2 b3 Ra1 Bb4 axb4 Qb6 Qe2 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 f4+ Kh4 c4 a5 c6 g5 c7 d6 c5 e5 Kd5 a4 c6 a3 b5 e4 b6 g3 f6 e3 b7 b2 f7 g2 f8N e2 f5 e1Q f6 Qf2 f7 Qe3 Ne2 Kh3 Nbc3 b1B Ne4 Bd3 N2g3 Na6 b8R Qg1 Bb2 Bb5 Bc4 Ba4 Rc1 Bc2 Rb3 Bg4 c8N Rh7 c7 Rg7 Ne7 Nf6+ Kc6 d5 c8N d4 Rf3 d3 Ng8 Qf2 Qe1 g1R Nf1+ Kg2 Neg3 Ne4 h4 Bh5 Rh3 Rh1 Qd1 Bg4 h5 Kg1 h6 Qh2 h7 Bh5 h8B Qd7+ Kb6 Qg4 Kc6 Ra7 Rh4 Qgh3 Qe1 Bg4 Rh7 Qh5 Rf6 Bgd1 Rf3 Nc7 Rh6 Ra4 Rh7 Bb3 Rc2 Na6 Rc3 Bdc2 Qc1 Bd1 Bd5 Bbc2 Rc5 Rd4 Bb3 Ra4 Bc4
N7/1BRpR3/2Nq3B/qR1b1P2/1N1P1pQn/R2r1R1K/2p1br2/B2nb1k1 b - - 0 1 illegal: No proof kernel
4nb2/rpk1NN2/1rr3N1/3Bp3/8/1bRBP1p1/RNB1n1KP/qr1QN1R1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h6 g6 Qd6 g5 Ra6 g7 Qb4 g6 Qd6 Bb2 Ra8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 d4 f5 a4 c5 a6 e5 a7 c4 a5 g4 e3 f4 a6 f3 d6 c3 d5 c2 Nh3 c1R Ra3 Rc4 Rg1 Qg5 Bd3 Qf5 Nd2 Rc2 Rc3 Rb2 Nf4 Nf6 g8B Kd8 d7 Nh5 g7 Rb6 Ng6 Bb4 Bh7 Qe4 g8B g3+ Kf1 f2 Nf3 Bf8 Kg2 Qc4 Ne1 Kc7 d8N f1R Nf7 Be6 d6+ Kd7 Bc2 Ng7 Bd3 Kc8 d7+ Kc7 d8N Ne8 Nc6 Qa4 Nce7+ Nc6 Bc2 Rc8 a8R Bb3 a7 Qd4 Nd8 Qa4 Bd5 Qa1 Nf7 Rg8 Ngh8 Rg4 Bhd3 Rc4 Nhg6 Nd4 Rb8 Ne2 a8N+ Kd7 Ng5 Rcf4 Nf7 Rcc6 Rc8 Rfb4 Rb8 Ra6 Nb6+ Kc7 Ra8 Ra7 Nc4 Rbb6 Nb2 Ra2 Ra4 Ra3 Rh4 Ra8 Ra4 Ra7 Nf3 Re1 Ra2 Rf1 Qd2 Rc1 Qd1 Rb1 Ne1
qR4r1/pP1B2r1/pbB5/b1N2p1k/R5B1/6n1/PKB1b1B1/Q1NRnbN1 b - - 0 1 illegal: Other
2R1R3/2NKpr1N/B1p5/1bP3B1/q3rNn1/1kbB4/2PBp2r/R1Q1qb1B b - - 0 1 illegal: Other
1RRqn1R1/1p5P/1Pqp1BBn/Q1N2kNB/1p3rR1/rb1R1r2/1q4N1/4K3 b - - 0 1 illegal: No proof kernel
1r6/2Bn3p/p3kBB1/N1rp2NN/2p2b2/RqPPRb2/rQ1NRN2/1Kn5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 a4 Nc6 axb5 Nb8 e4 f5 exf5 exf4 b4 Ke7 g4 c5 b6 d5 c3 a6 f6+ Kd7 b5 c4 g6 f3 g5 Qc7 f7 Qf4 b7 Bc5 f8R Kd6 g7 Bg4 g6 Ra7 b6 Bh5 Qe2 f2+ Kd1 Qf3 Kc2 Qg4 Nh3 Kd7 Re8 Qg1 Rh2 Bd6 Ra3 Bg3 Re3 Ne7 g8N Nc8 g7 Ra8 Nf6+ Kd6 g8N Ra7 Ne4+ Ke6 Ngf6 Bg6 Nh5 Nd7 b8N Ne5 b7 Nd3 Nc6 Nb6 b8B Nd7 Na5 Bf4 Bc7 Rb8 Bg2 f1R Nhf2 Bf5 Bf3 Bg4 Bg2 N3c5 d3 Nb3 Nbd2 Bf3 Kb1 Rab7 Bh1 Rb5 Bg2 Rc5 Bh3+ Kf7 Bf5 Qg8 Bg6+ Ke6 Qd1 Rg1 Qc2 Rg2 Qb2 Qg7 Rh1 Qe5 Rhe1 Qd6 R1e2 Qb6 Nf1 Qb4 Bd2 Qb7 Be1 Rh2 Nfd2 Nc1 Nh1 Qc8 Rf2 Rg2 Ndb3 Be2 Qa2 Bf3 Rb2 Rc6 Bh4 Rg4 Bf6 Qb7 Rh2 Rg2 Qa1 Rd2 Rhe2 Ra2 Qb2 Qb5 Nbd2 Qb3 Nhf2 Rc5 Ng5#
krn5/Rq6/N2BK1Nn/q2ppR2/1Qn2r1B/2p3RP/2Pp2R1/RN3b1B b - - 0 1 illegal: Other
1n1R1B2/n3k1K1/p6r/B4Bp1/P2R2r1/3bb3/1pRpNP1B/rn1B1NQN b - - 0 1 legal: proof: c4 f5 b4 h5 e4 c5 exf5 d6 bxc5 Qa5 g4 hxg4 c6 Qc3 c7 Rh5 c5 Rh4 c6 Qa3 d4 Qc5 dxc5 Rh8 Ke2 g5 Ke3 b5 Ke4 e5 h4 b4 a4 a6 f6 b3 f7+ Ke7 h5 g3 h6 g2 h7 b2 Bf4 Bd7 c8R Bh6 c7 Bf8 c6 Bh3 Bh2 Be6 Be2 Ba2 Kf5 d5 Kg6 d4 Rd8 d3 c8B e4 c7 e3 Bf5 Bc4 Nd2 Bg7 Qe1 Bd4 Nf1 d2 Bd1 e2 Rc1 Bd3 Rc2 Be3 Kg7 Ra7 Rd4 Rb7 Rd8 Rb3 Rd4 Ra3 Rd8 Ra1 Rd4 Nd7 c8N+ Kd8 Nd6 Ne7 Ne4 Nc6 Neg3 Ke7 Rdc4 Ndb8 Rd4 Na7 Rd8 Rf8 h8B Re8 Kh6 Rf8 Bc3 Rh8+ Kg7 Rh3 Ba5 Rh6 Nh3 g1R Nf4 Rg2 Rg1 Be4 Nh1 Rg4 Rg3 Bd3 Rh3 Re6 Rh4 Rd6 Nfg3 Rh6 Qg1 e1N Nf1 Ra3 Ne2 Ra1 Rc3 Nc2 Rc5 Na3 Rc2 Rg3 Rb4 Rg4 Rbd4 Nb1 f8B#
R2B1r2/kB1r3R/4r1nP/1b1p1pQ1/1B1R1N2/1Brp1q2/B2P3p/KNnN4 b - - 0 1 illegal: No proof kernel
1R6/pB2RK2/1Qqprn1b/3R2N1/NB3Bp1/prBP4/r1B1b1PN/2r1k3 b - - 0 2 legal: proof: e4 b5 h4 c5 a4 g5 b4 f5 bxc5 Nc6 Bc4 Nd4 Bf1 bxa4 exf5 g4 Bc4 Ne6 Bf1 Ng5 hxg5 Bb7 Bb5 Ba6 Bf1 Bc8 Ke2 Kf7 Kd3 e5 Kc4 h5 Kd5 h4 f4 e4 c4 a3 f6 Kg6 f5+ Kh5 c6 e3 c5 h3 g6 Kh4 c7 Kg3 f7 Kf2 g7 h2 c6 e2 f6 e1R Qb3 Qe7 Nf3 Bb7 c8B Rh4 Bb2 Rc1 Bd3 Qd8 Qb6+ Bc5 f8B Be3 f7 Qf6 Bd6 Qc3 f8B Qf6 Bf4 Rh6 Bc2 Ke2 Bc3 Rd1 Bfb4 Ba6 c7 d6 Bb7 Kf2 c8R Rh7 Rb8 Rh6 Re1 h1R Nh2 Bf1 Ra2 Bd3 Rb2 Be2 Rb3 Rh3 Rb2 Qf8 Ke6 Nf6 g8N Qc8+ Kf7 Rc1 Nh6 Rf1 Kg6 Rg1 Nf7 Qc6 Ng5 Rh6+ Kf7 Rh3 Rh8 Re8 Rh5 Re6 Ngf3 Qb5 Rd5 Qc6 Ng5 Rg3 Bce5 Rh1 Nc3 Ra1 Na4 Ra2 Bec3 Rf3 Bc5 Rg3 Rb5 Rh3 B5b4 Rg3 Rb1 Rc1 Rbc5 Ke1 Rb2 Qb5 Rc7 Qc6 Re7 Bc5 Bd4 Rb3 Bdc3 Be3 Bc5 Ne8 Qd8 Raa1 Bc8 Bf3 Ne4 Rd1 Bfe5 Bh6 Ng5 Rdc1 Bf4 Nf6 Qa5 Rb5 Qc7 Ra5 Rb8 Ra2 Bb7 Rb5 Qb6 Rb3 B5b4 Be2 d3+
n1b1nB1R/2RBn3/1b4pb/1BQ1B2p/3Nb2p/2N3PP/1kNBp2K/5qR1 b - - 0 1 illegal: Other
2rRR3/N4B1p/b2ppPRr/k1RN3n/2pB3b/3pB3/1n1P1NK1/4qQR1 b - - 0 1 illegal: Other
1b2nr1n/2Nk2BB/1N2p2p/K1nBrp1P/NR3NPq/1RR5/4pQpN/8 b - - 0 1 illegal: No proof kernel
1bKB3B/3N2np/B4B1B/r2R1qq1/1pQ1N2P/1Rp2n1n/1P2RnkN/1b4r1 b - - 0 1 illegal: No proof kernel
1k4N1/3bRpB1/NbBnqp2/p6n/P1nr2Qp/3r1R1N/3b1P2/1KB1NRN1 b - - 0 1 illegal: No proof kernel
B1Nb2R1/1qB3rN/B1r1n1k1/N1p2p2/4p3/BRPB1PKp/1Rp1b2n/4Q2b b - - 0 1 illegal: No proof kernel
q4BN1/2rk4/2pQqq1R/1r2Q3/2B2QQN/2KRP3/1PQ1B2r/rr6 b - - 0 1 legal: proof: h4 g5 d4 b5 c4 f5 g4 e5 a4 d5 axb5 f4 Kd2 e4 e3 Bf5 gxf5 dxc4 Kc3 g4 Kd2 Be7 d5 Bg5 hxg5 Nc6 Qe1 Nf6 Qd1 Nd4 exd4 e3+ Kc2 e2 Kc3 Ne4+ Kc2 Nc3 Kd2 Kf8 Qb3 Nd1 Qa4 Ne3 fxe3 Ke7 Qd1 Ke8 b6 e1R f6 a5 f7+ Kd7 f8Q h5 d6 a4 b7 f3 b8Q a3 d5 f2 g6 a2 g7 h4 g8B h3 Nf3 g3 Kc3 g2 Be2 g1Q Qc2 f1Q Nh4 h2 Bd2 c6 Qf4 Ke8 d7+ Ke7 Qbb3 Qb6 Qa3+ Qc5 Bf7 Qg6 d6+ Kf8 Qe5 Rb8 Qf4 Qe6 d8Q+ Qe8 d7 Rb5 Qdg5 Qa8 Qfe5 Qd6 Qg4 Qf6 Bd5 Qe6 d8Q+ Kf7 Qdg8+ Ke7 Q8g5+ Kd7 Qg5f4 Rc1 Be1 Rc8 Nd2 Rc7 Ne4 Rd1 Rb1 a1R Bg3 Rg1 Rd1 Re1 Rd3 Reb1 Rg1 h1R Nf6+ Kd8 Rc1 Rh2 Ng8 Kc8 Rh1 Kd7 Nf5 Qf6 Bh4 Qfe6 Be7 Qf6 Bf8 Qfe6 Kd4 c3 Kc4 Qf6 Nh4+ Qfe6 Qcb3 c2 Kc3 c1Q+ Qc2 Qf1 Bc4 Rg2 Ng6 Qf3 Rh6 Rh2 Nh4 Qf1 Qfg5 Qf7 Qg5f4 Qf6 Qxd6+
4q3/2bB1Q2/1b4Qq/1KBP1b1B/2n3nB/k2NP1rn/1NRNBR2/4n3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 axb6 d5 f4 exf4 c4 Ba3 cxd5 Be7 a4 Bd7 a5 Ra7 bxa7 Bf8 a6 Bc8 a8B Ke7 h4 Kd6 d4 g5 Kd2 c5 Kd3 f5 Kc4 g4 e3 f3 a7 f4 h6 f2 h7 g3 h5 f3 h6 g2 Ba3 Qg5 Nh3 g1N Nf4 Nh3 Qb3 Na6 Bc6 Bf5 a8B Nf6 Ra2 Nb4 Bd7 Nc2 Kb5 Ne1 Nd2 Rg8 h8N Ng4 h7 Qh6 Be2 f1Q Nhg6 f2 h8Q Qg1 Bb7 f1N Rc2 Bg7 Qc4 Be5 Qg7 Qg2 Qf7 Qe4 Nd3 Bg3 Rg1 Qe8 Rg2 Bf4 Nb2 Be5 Nb1 Nd2 Qd3 Nc4 Nd2 Nf6 Rf2 Be6 Nf4 Rg3 Qdg6 Bf5 Nfd3 Nb6 Rc4 Bf4 Bh5 Be5 Qgg7 Ng4 Qgg6+ Kc7 Rc3 c4 Rc1 c3 d6+ Kb8 Bh1 Ka7 d5 c2 Qff6 Nc4 Bf3 Bd4 Bc6 Bb6 d7 Bc7 Kc5 Ka6 d8B Ka5 Bd7 Bb6+ Kc6 Bc7 Be2 Bb6 Nd1 Ka4 Qff7 Bc7 Bc5 Bb6 Bd4 Ka3 Kb5 Bc7 Bh4 Bb6 Rb1 c1B Rb2 Bc7 Rc2 Bb2 Bb6 Bd4 N1b2 Bc5 Ba5 Ba7 Bc3 Bc5 Bd4 B5b6 Bc5+
1nNn1K2/4Pp2/kPB2QqN/1b2N2q/1Bb1N3/1R3nrN/r4Q2/2R2B2 b - - 0 1 legal: proof: f4 h5 b4 c5 d4 d5 a4 b5 axb5 e5 c4 exf4 cxd5 a5 bxa5 c4 g4 Nf6 gxh5 Bc5 dxc5 Ng8 Kf2 Kd7 Kf3 Kc7 Ke4 Kb7 Ke5 g5 e4 f3 h4 f2 d6 c3 h6 c2 b6 g4 d7 g3 Kd6 g2 e5 Ra7 h5 Qg5 d8N+ Ka8 h7 Qe3 e6 Qg5 c6 Ra6 h6 Ne7 c7 Qf5 Qd2 Qb5 Rh3 Bd7 c8N Rg8 h8N Rg7 h7 Nbc6 Nc3 Rg4 Ng6 Re4 h8Q Ra4 Nb7 Nd4 Ne4 Nec6 Rb3 Ra3 Nh3 g1N Qf6 Nd8 Ke7 Qh5 Kf8 N4c6 e7 Nb8 Ne5 Nf3 Nbd6 Bb5 Nf5 Kb7 Nh6 Ra8 Qe1 Ka6 Bd2 c1Q Bb4 Qcg5 Rc1 Qgg6 Qd2 Ra7 Qdf4 Ra2 Qh2 Rd7 Qhf4 Rd3 Qg3 Bc4 Qg1 Kb5 a6 Rc3 a7 Ka6 a8B Bb5 Bg2 f1B Bc6 Bfc4 Qe3 Nh4 Qd2 Rg3 Bf1 Nf3 Qf2
1Q2K2N/3nB3/3rQ3/BP2bNR1/q4nb1/3PN2p/2n1n2R/3kNNrR b - - 0 1 legal: proof: b4 b5 e4 d5 c4 g5 cxd5 f5 exf5 c5 a4 a5 bxa5 c4 h4 Nh6 hxg5 Ng8 Bd3 Bg7 Bc2 Bf8 Bb3 cxb3 axb5 Qd6 Rh5 Qc7 Rh1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 h5 f4 h4 g4 h3 f6 Kg6 f5+ Kf7 d6 b2 Kd5 e4 g6+ Ke8 f7+ Kd7 a6 e3 g7 e2 d3 e1N f6 Qb6 a7 Nc6 g5 Ng2 g6 Ba6 Qe2 Nh6 g8N Qe3 g7 Re8 a8N Nd4 Nb6+ Kd8 d7 Kc7 d8B+ Kb7 Nc4 Bd6 f8Q Re6 f7 Qf4 Nf3 Ng4 Ne7 Ne5 g8R Nd7 Ne3 Be5 Bd2 Nc2 Ra2 Qa4 Rg5 Rg8 B2a5 Reg6 Nbd2 b1N Ne1 Rh6 Ng6 Nc3+ Ke6 Nf4+ Ke7 Rg7 Nh4 Rd6 Qg4 Nce2 Nhf5 Ka7 Qh8 Bc8 Ke8 Rgg6 Be7 Kb7 Bc3 Kb6 f8N Kc5 Ba5 Rg7 Ndf1 Rg6 Bb6+ Kb4 Ba5+ Kb3 Qg8+ Rde6 Qh8 Rg7 Ng6 Rd6 Qf8 Rg8 Nh8 Rg7 Ra1 Kb2 Ra2+ Kc1 Rh5 Rg8 Qg6 Rg7 Qe6 Rg1 Rb2 Bb7 Rg5 Bf3 Kf7 Bg4 Qb8 Nb4 Rd2 Nc2 Ke8 Ng3 Rdh2 Nge2 Nd5 Kd1 Nde3+
4n1QN/1Pk1B2p/K3nRn1/RQqbR3/2r2b1Q/1nr1B3/3N1P2/4Q1Q1 b - - 0 1 legal: proof: h4 a5 b4 d5 bxa5 Na6 e4 f5 a4 g5 c4 b5 axb6 c6 hxg5 Qc7 exf5 Qd8 cxd5 Nb8 Bb5 cxb5 a5 Bb7 Bb2 Ba6 Bc1 Bc8 Ke2 Kd7 Kd3 e5 g4 b4 Kc4 b3 Kb5 b2 d4 e4 d6 e3 f6 e2 d5 e1N b7 Nh6 g6 Ng8 f7 Qc7 g5 Nh6 g7 Ra7 g8Q Nf3 a6 Ne5 g6 Qd8 g7 Qg5 Ra5 Nc4 Nf3 Qg1 Ne5+ Kd8 d7 Ng4 Ng6 Nge5 Be3 Kc7 Rh5 Nbc6 Qe1 Bd6 f8R Nd8 Nd2 b1N Rf6 Qg5 Qe8 Ne6 g8Q Ra8 a7 Rb8 a8Q Qf5 Nf8 Ng6 Ka6 Bf4 Qg7 Qc2 Re5 Nd6 Qg8 Qc5 Qg7 Ne7 Ng6 Rf8 Nh8 Ng6 Qee7 Ne8 d6+ Kc6 d8Q Bd7 Qf1 Rc8 Qg8 Rc7 Qg1 Rc8 Nc4 Nd2 Qa7 Nb3 Nd2 N6g7 Qa8 Be6 Qb8 Bd5 d7+ Ne6 Qa7 Qa3 Qd4 Qc5 Qb4 Ng7 Qde8 Kc7 Qb5 Rf7 Qe8f8 Ne8 Qh6 Qc1 Qeb4 Qc5 Qh4 Re7 Rf8 Rf7 Qe4 Rf5 Rf6 Rg5 Qeb1 Rg3 Qbe1 Rf3 Bd4 Rc3 Be3 Rc4 d8B+ Kd6 Qb1 Rc3 Qh6 Qb4 Qb1f1 R8c4 Be7+ Kc7 Qe1 Qc5 Qh4
4q3/NPq2N1Q/b2Q3K/NN1BRp1N/B4P1k/2r4n/1r3Q1R/2b1rq2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 d4 c5 dxe5 Na6 c4 Nc7 a4 Nd5 Bg5 Nb6 axb6 Ra6 Bd2 Ra5 axb5 Ra7 Bb4 cxb4 c5 Ra8 Kd2 Ke7 Ke3 g5 h4 f5 e6 Kf6 h6 d5 c6 g4 Kf4 g3 e4 d4 e7 d3 e8B b3 e5+ Ke6 c7 d2 h5 g2 h7 b2 h6 Be7 b7 Ra2 b8N Ra5 b6 Bd7 c8N Rc5 b7 Bf6 Na7 Be7 Rh2 Rd5 Na3 b1R Bc4 Qc7 N3b5 Rb2 Ra5 Qb6 Ne2 g1Q Nbc6 Qe1 Ng3 Ba3 Kg5 Qc7 Nh5 Nf6 f4 Ne4+ Kg6 Ng5 Qf3 d1Q Qf2 Rf8 h8Q Nh3 h7 Qe3 Ba2 Qf1 Kh6 Rg8 Bb3 Rg3 Qg7 Qe4 h8N Rc3 Qh7 Qee2 Ba4 Rd1 Nf7 Kd5 e6 Ke4 e7 Re1 Bb3 Be6 Bd7 Bc4 Ba4 Qe3 Be6 Qee2 e8Q Bd3 Qh4 Kf3 Qf2+ Kg4 Bd5 Qee5 Qd7 Qe8 Qd6 Bc4 Nbd4 Ba6 Rc5 Rbb3 Na5 Bc1 Ndb5 Rb2 Bh1 Ree2 Re5 Re1 Qg1+ Kh4 Bd5 Ra2 Qd4 Rb2 Qf2+
QK3Nrq/n1N1pB2/5bQ1/2P1R2n/4n3/1R1BP3/2B3Bq/2knQ1Bq b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 f4 g5 fxg5 b5 d4 cxd4 a4 Rh6 axb5 a4 b6 Ra7 bxa7 Bb7 b5 Ba6 bxa6 Rh8 Kd2 d5 Kd3 Kd7 a8B Ke6 h4 Kf5 c4 a3 g6 f6 h6 a2 c5 Qb6 a7 Ke5 g7 f5 h7 f4 h5 f3 h6 f2 Rh3 Nf6 g8B Nh5 Be3 Qe6 Bf7 Ng3 Nf3+ Kf5 Ne5 Qc6 Nd7 Qf6 Na3 Nc6 Qe1 Qd6 Nb5 Bg7 Nc7 Bf6 Nf8 Rg8 h8Q Ne4 h7 Qh2 Qg7 Ke5 Bg2 f1N h8Q Nfg3 Bg1 Kf4 Qg6 Nh5 Rb1 a1Q Rb3 Qb2 Re3 Qa1 Bb7 Qb2 a8B Na7 Ba6 Qa1 Rb1 Qb2 Bc6 Qb8 Ba4 Qe8 Kc2 d3+ Kb3 d2 Kb4 d1Q Ka5 d4 Kb6 d3 Kb7 d2 Bd3 Qc1 Bac2 d1N Nd7 Qf8 Rb3 Qg7 Nf8 Qh7 Qhg7 Qh8 Kb8 Bg5 Qc6 Ndf2 Qa5 Nef6 Re5 N6e4 Qb7 Ke3 Qg6 Bf6 Qa8 Qb1 Qa1 Kd2 e3 Qe1 Qa5+ Kc1 Qb4 Qf1 Qe1+ Nd1 Bf2 Qfh1 Bg1
Q3R1qk/R3rP2/1QnK1br1/8/P1Nn2Qb/1R4B1/4ppq1/1B1RN2R b - - 0 1 legal: proof: g4 d5 b4 a5 c4 axb4 cxd5 h5 gxh5 c5 d4 Nc6 dxc5 Nb8 e3 Bh3 e4 Bc8 f3 e5 Nd2 f5 Nb1 f4 Ba3 Qe7 Bc1 Bf5 exf5 e4 Ke2 e3 Ke1 Qe4 fxe4 Be7 Qd2 Bd6 Qd1 Bf8 Ke2 Kf7 Kd3 g5 Kc4 Kg7 h4 f3 a4 f2 f6+ Kh7 f7 g4 h6 b3 d6 b5+ Kd5 b4 h5 g3 e5 g2 c6 b2 d7 b3 d8Q Bd6 c7 Bf8 c8Q Bd6 e6 Be7 Qb6 Bg5 e7 Ra6 e8R Bh4 Qdg4 Ne7+ Kd6 Nec6 Nf3 g1B Ne1 Nd4 Nd2 b1Q Nc4 Nbc6 Qa8 Qe4 Bd3 e2 Bb1 b2 Bf4 Bh2 Bg3 Bf6 Re7 Re8 Ra7 Kh8 h7 Qg2 Ra3 Bh4 Rb3 Bf6 Nd3 Bh4 Rd1 Bf6 Ne1 Bh4 Bc2 b1Q Be4 Qc1 Bf5 Qg5 Bb1 Kg7 h8R Re7 Re8 Qg6+ Qe6 Qh7 Qf5 Qg8 h6+ Kh8 h7 Bf6 Bf4 Bg3 Qg4 Bgh4 Bg3 Ra5 Qh5 Rg5 Qg4 Kg7 h8R Rg6 Qb5 Bhg5 Rh2 Bh4 Qb6 Kh8 Rh1
1n1B3R/1b3R1r/1P2B3/1p4KB/RpQ1BQPN/r2r2bB/2kq4/q6N b - - 0 1 legal: proof: f4 a5 c4 g5 h4 d5 hxg5 e5 fxe5 Qd7 cxd5 Qd8 a4 b5 b4 c6 d4 axb4 a5 c5 dxc5 Nd7 Ra3 Bb7 Ra1 Nb6 axb6 Bc8 Kd2 Kd7 Ke3 f5 Kf4 h5 e4 h4 g4 h3 g6 h2 d6 Ke6 d7 Ra4 c6 Rh5 g7 Ra5 c7 Nh6 g8Q+ Nf7 Bh3 Ra8 Nf3 Ra7 Qd4 Rh8 Rf1 h1R Nbd2 Ba6 c8B Bb7 Nh4 Ra8 Ra4 Qe7 d8R+ Qd7 Qe3 Ke7 e6 Kd6 e5+ Kd5 e7 Rh7 e8B Bd6 Ne4 Kc4 Ng3 Bc7 Bb2 Qd2 Bc6 Rg1 Rf3 Rd1 Be4 Bb8 Bc3 Kb3 Nh1 Ra6 Bd7 Bd6 Rb8 Bc7 Qc8 Nd8 Kg5 f4 e6 Nc6 e7 Ra8 Rf1 f3 e8B f2 Bh5 Bg3 Qf4 Ra7 Ra8 Nb8 Bf6 Ra6 Bd8 Ra5 Re1 f1Q Be6+ Kb2 Qc4 Qg1 Ra1 Ra3 Rf1 Qgd4 Rc1 Qh8 Rc2+ Kb1 Ra4 Qa1 Rf3 Qdd4 Rh2+ Rdd3 Qfc7 Qf2 Rf7 Qfb2 Qf4 Qd2 Rf8 Kb2 Rh8 Kb1 Rf2 Kb2 Qe3 Kb1 Rf7 Kb2 Qf4 Kb1 Qd4 Kc2 Qc4+
k1b2Q2/3NNPq1/8/3pB1Nn/1r1pNqPr/B2R4/2KQRbB1/b2N4 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 axb6 c5 a4 f4 d4 cxd4 a5 f3 b7 Nc6 exf3 Ne5 f4 Nc4 f5 Nb6 axb6 Ra5 Qf3 Ra3 Qd1 Ra8 Kd2 d5 b8N e5 f4 h5 c4 e4 g4 e3+ Kc2 e2 b7 e1B f6 h4 g6 h3 c5 h2 c6 Ra4 f7+ Ke7 g7 Kd6 c7 Rh4 f5 Be7 f8Q Bf2 f6 Qe8 f7 Rh3 Nf3 Rh8 Ng5 Bg3 Nd7 Kc6 b8B Kb7 Ra2 Ba3 Qd2 Nf6 g8N Bb2 Nc3 Qe5 Nd1 Rh4 Bg2 Rb4 Ne7 Ba1 Ba3 Nh5 Re1 h1Q Re3 Qg1 Rd3 Ka8 Rb2 Qg7 Ra2 Bb7 c8N Qh2 Nd6 Bf2 Nde4 Bc8 Be5 Qg3 Rb2 Qf4 Rbb3 Qg8 Re3 Qg6 Re2 Qg7 Rd3
4RNr1/2q1Q1R1/2Q5/4pQnp/RN1B1P1b/1n3n2/BKPR1R1r/4n1k1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 d4 cxd4 exf5 Bb7 Nf3 Ba6 Ng1 Bc8 hxg5 a5 bxa6 Ra7 b4 Nf6 b5 Ng4 b6 Nf6 b7 Nc6 b8R Bb7 axb7 Ng8 Ne2 Ra2 Ng1 Ra8 Kd2 Kf7 f4 d5 g4 e5 f6 Kg6 f7 h5 Nc3 d3 Rh2 d4 Qf3 Ra3 Rf2 Rh6 Nge2 Nf6 Bb2 Be7 Kc1 Nd7 f8Q Qc7 Na2 Rh8 Nb4 Nc5 Rd8 Rg8 b8Q d2+ Kb1 d1N Qc8 d3 Nd4 d2 Ne6 Rb3 Bc4 Ne3 Ra4 d1N Rdd2 Nd4 Qc6 Ng2 Q8b7 Rd3 Ba2 Nf3 Bd4 Nc3+ Kb2 N3e4 Qfc8 Nb3 Nf8+ Kg7 g6 Bh4 Qa7 Neg5 Qf5 Nge1 Qac5 Kh6 Qe7 Re3 Ne6 Re2 g7 Rc8 g8R Ra8 Rg7 Rg8 Rf1 Rh2 Rff2 Rg2 Rf7 Re8 Qfe4 Rh2 Rg2 Rc8 Qd3 Ne4 g5+ Kg6 Rh7 Kf5 Rh8 Nc5 g6 Nb3 g7 Ra8 Rge2 Kg4 g8R+ Kh3 Rg7 Ng5 Qf5+ Kg3 Bf2+ Kg2 Bd4+ Kf1 Rf2+ Kg1 Rd8 Ra5 Rc8 Rd5 Rca8 Rd8 Rb8 Rf8 Re8 Rg8 Nf8
2Rq4/Q2q1B2/Q2Pk1Pr/2KRb1q1/1N4p1/2R1Qr2/5pBn/QrQN4 b - - 0 1 legal: proof: g4 g5 b4 e5 h4 a5 f4 b5 a4 d5 c4 f5 cxd5 Nc6 fxe5 f4 Ba3 Bf5 gxf5 g4 axb5 Nd4 b6 Ne6 b5 Ng5 Bb4 axb4 hxg5 Ra4 Nf3 Ra3 Ng1 Ra8 Kf2 Kf7 d4 c5 e4 h5 b7 h4 b8R b3 f6 f3 Ke3 f2 g6+ Ke8 e6 h3 f7+ Ke7 b6 h2 d6+ Kf6 d5 b2 e5+ Kf5 e7 c4 Kd4 c3 e8B c2 e6 c1Q e7 Ra6 b7 Rh6 d7 Qdc7 d8Q Rf6 d6 Q1c6 Ne2 Q6d7 Nf4 Rh4 Nd3 Qc2 Qc7 Rh3 Nc3 b1R Rc8 Qda4+ Nb4 Qc1 b8Q Rh8 Qba7 Nh6 Kc5 Bg7 f8Q Nf7 Bg2 Rh6 Ra3 Ng5 Qg1 Qf4 Nd1 Ke6 Rc3 Nf3 Qcb6 Rf7 Qh8 Be5 Qba6 Qd7 Qe1 Rf6 Qd2 Qd8 Qc1 Qg5 Re1 h1Q Re4 Nh2 Rd4 Bg3+ Rd5 Rf3 Qd4 Be5 Qde3 Rb2 Qca1 Qe1 Qec1 Qe2 Bc6 Rb1 e8Q+ Kf6 Bd7 Qc2 Ba4 Qcf5 Bb5 Qfd7 Bc6 Bf4 Qee3 Be5 Ba4 Ke6 Bc6 Qh7 Be8 Qhd7 Bf7+
2kr2r1/2p5/3B3N/RQq1b2N/1r2RBp1/2P3bB/1Bq1RbKP/3QB3 b - - 0 1 legal: proof: d4 d5 e4 h5 g4 hxg4 f4 b5 a4 e5 dxe5 Ke7 axb5 d4 e6 Rh4 f5 Nf6 e5 Ne4 Qf3 Nd6 exd6+ Kf6 Qe2 Bd7 Qd1 Na6 exd7 Nc5 Qf3 Ne6 Qd1 Rh7 fxe6 Rh8 Kf2 g5 b4 a5 e7 Ke6 e8R+ Qe7 d8B Kd7 c3 f5 b6 f4 b5 a4 b7 a3 b8B d3 b6 g3+ Kg2 a2 b7 g4 Bb2 d2 Na3 Ra6 Nc4 Bg7 Nh3 Ra4 Ba7 Rb4 b8Q Rg8 Bc5 Be5 Qb5+ Kc8 Ne3 Qg5 Nf5 f3+ Kg1 g2 Nf4 Qg6 Nh6 Qc2 Nh5 Bg3 Re4 Be5 Qde2 d1R Bh4 Rdd4 Re1 a1B Qd1 Rd3 R1e2 Bg3 Bc1 Bb2 B5e3 Ba3 Bb2 Be5 Bf4 Rd2 Kf2 g1B+ Kg3 f2 Bh3 f1Q Be7 Qe1+ Kg2 Bgd4 Bf8 Bf2 d7+ Kd8 Bd6 Rd3 Rd2 Qe3 Re2 Qc5 Rhe1 Rb3 Ra4 Rb4 Ra5 Bg3 Ba1 Bc1 Bb2 Bd2 Re4 Be3+ Re2 Bef2 Bd2 Bg7 B6f4 Be5 Be1 Ke7 d8B+ Ke6 Qb6+ Kd7 Qb5+ Kc8 Be7 Rdd8 Bd6
1B4R1/p2Nr1Bn/3Pp2Q/1BB5/n2PkRK1/3q4/3Qr1Bp/1NqqR3 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 f5 exf5 d4 c4 d3 h4 gxh4 b6 Be6 b5 Nf6 b7 Qc8 b6 Bd5 cxd5 Nc6 b8B Qd7 Bxd3 Qc8 b7 Ng8 Bf1 Bg7 Ra6 Ba1 Rxa1 Qd8 Ke2 Kd7 Kf3 Kd6 d4 h5 g4 h3 f6 h4 f7 h2 f8B h3 g5 Rh6 g6 Qc8 g7 Qd8 Ra3 Qc8 Qd2 Na5 Bb5 Re6 Kg4 Nc4 f4 Nb2 f5 Na4 Nf3 Re2 Re1 h1Q Ne5 h2 Nd7 Qe8 f6 Qg6+ Kh3 Qd3+ Kg4 Qf1 f7 Qh1 Bb2 Qf1 Bc3 Qh1 Ba5 Qf1 Bb6 Nf6+ Kg5 Qh1 g8B Nh7+ Kg4 Qf1 Bg7 e6 f8R Qh1 Bf7 Qf1 Bg6 Qh1 Rg8 Qf1 Rc1 Qd1 Rb3 Ke7 Bf5 c5 Be4 c4 Bg2 c3 d6+ Kf7 Bc5 Kg6 Ra3 c2 Rc3 Qf1 Re1 c1Q Qb2 Qdd1 Rf3 Qd3 Qd2 Qg1 Bc7 Re8 b8Q Re7 Qf8 Qf1 Bb8 Qg1 Qff4 Qd1 Qg3 Qge3 Qh4 Qf4+ Kh3 Kf5 Qg5+ Ke4 Qh6 Qf8 Kg4 Qc8 Bb6 Qcc3 Bc5 Qcc1 Rf4#
nQNRn3/1K4NP/1p1B2q1/2N5/N1p3q1/2q3pN/1PQBpr2/1k3R1B b - - 0 1 illegal: No possible last move
1Nn2QBk/3N2b1/pb2b1Rp/P1B1p3/5Npp/4N1p1/1K1P4/2Q1NBR1 b - - 0 1 illegal: Other
1nN4b/B4Q1K/2qR2Bn/8/b3Pn1R/r1k1N1rP/2bq1NbB/1B1Q3B b - - 0 1 legal: proof: c4 e5 b4 b5 a4 h5 axb5 d5 cxd5 e4 Ra3 g6 Rh3 h4 Qc2 e3 Qf5 gxf5 fxe3 f4 e4 Ke7 e5 Ke8 Rxh4 Qf6 Rh7 Qd8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 a4 e4 f3 d4 f2 g4 c4 g5 c3 g6 c2 d6 a3 g7 a2 d5 a1Q b6 f6 Kg6 f5 b7 f4 e6+ Ke8 e7 Kd7 b5 f3 b6 Qa3 Rh4 Nh6 g8B Na6 b8N+ Ke8 b7 Qd7 Nc3 Qb5 Bg2 f1B Nd1 f2 Be3 c1N Nc6 Kd7 b8B Ne2 Nh3 Nc7 Bea7 Qab4 Ne3 Q5a4 Bf7 Rg8+ Kh7 Nf4 Bf3 Bfa6 Rd1 f1B Bh1 Qe1 Nf2 Qd2 h3 Bg7 Bg6 Bcb7 Bf7 Bad3 e8B+ Kc8 Bg6 Bh8 Bef7 Kd7 Ne7 Na6 Nc8 Bc6 Bc7 Bc2 Bcb8 Kd8 d7 Bg2 Bd6 Nb8 Be6 Ne2 Bh2 Nf4 Bef7 Kc7 d8Q+ Kb7 d6 Ka6 d7 Kb5 Ba2 Kb4 Qe7+ Kc3 d8Q Bd7 Qee8 Qc6 Qf7 Be8 Bb1 Bd7 Bb6 Ra3 Ba7 Be8 Bh5 Rg3 Bg6 Qc4 Qd6 Bea4 Qdd5 Qc6 Qh5 Qe1 Rd6 Qd2 Qd1
1r1bK1nN/1r4B1/r4PR1/2N1n1R1/6Nr/QB2Q1k1/1bNBP3/1qqN2q1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 f3 gxh4 Ra6 e5 Ra1 e4 fxe4 f5 Nc3 f4 Nb1 Bf5 exf5 Qd7 Na3 Qe7 Nb1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 a5 b4 c5 g4 c4 g5 a4 b6 c3 b7 c2 b5 f3 b6 a3 g6 f2 g7 h3 Qd3 h4 Qe3 h2 Bh3 f1Q Nc3 a2 Nd1 Qe1 Bd2 c1B Nf3 Rh5 Rg1 h1Q Rg6+ Kd7 Ke5 Qg2 d6 Qc8 d5 Qeg1 Ne1 Qd8 Nc2 Na6 b8N+ Kc8 Ke6 Ra7 Nd7 Bb2 Kf7 Qdg5 Ke8 Be7 Nc5 Rb7 d7+ Kb8 d8B Q2h1 f6 Rh8 d6 Nb4 d7 Nc6 Be6 h3 Bb3 h2 Rb1 a1R Rc1 Rba7 b7 Ne5 Bb6 Rb1 d8N Ra6 Nf7 Bd8 Ba7+ Kc7 b8Q+ Kc6 Qb4 Rh4 Nh8 Kd6 Qa3 Qe4 Nf2 h1R Nd1 Qd3 Bb6 Rb4 Ba5 Rb7 Bac3 Rh4 Bb4 Ne7 g8N Qdf5 Nh6 Ng8 Ba4 Qe4 Ng4 Kd5 Nb3 Ke6 Bf8 Kf5 Nc5 Qgf4 Qd4 Qfe3 Rg5+ Kf4 Bb3 Kg3 Bg7 Qgg2 Rg6 Kh3 Bb4 Q4f4 Ba5 Rb4 Bd5 Rb8 Nh2 Ba1 Nc3 R1b7 Bb3 Bb2 Rg1 Qh1 R1g5 Qb1 Nd1 Qg1 Ng4 Qfc1 Bd2 Kg3 Qe3+
K1n4R/Nrqk1BR1/2B2b1B/n3Q1Q1/7n/2B1N1Pn/P1qNB3/b2b3q b - - 0 1 legal: proof: g4 d5 e4 f5 exf5 b5 f4 g5 fxg5 a5 b4 axb4 c4 Ra3 cxd5 Rg3 hxg3 Be6 Bd3 Bd7 Bf1 Bc8 Ke2 c5 Kf3 e5 Ke4 h5 d4 c4 g6 h4 g5 b3 g7 b4 g6 c3 d6 c2 Kd5 e4 f6 h3 f7+ Kd7 Qe1 b2 Bh6 c1Q Nd2 b1N Be2 e3 Nf1 h2 Nf3 b3 N3d2 Be7 f8B Na3 Rb1 Nc2 Kc5 b2 d5 Bh4 Kb5 Qe7 Kb6 Rh7 Ka7 Nd4 Ka8 Qc2 Rc1 b1Q Rd1 Nf6 g8B Ne4 g7 Nf3 Bf7 Bf6 g8B Nh4 Bfg7 Nc6 Rc1 Ba1 Bc3 Na5 Rd1 Qd8 Rc1 Qc7 Be8+ Kd8 d7 Nd6 Bgf7 Ba6 Rd1 Nc8 Rc1 Ke7 d8N Bc4 Bb5 Bb3 Nc6+ Kd7 d6 Rg7 Bf3 e2 Ne3 Rh7 Ba6 Rg7 Na7 Rh7 Rg1 h1N Bc6+ Kd8 d7 Nf2 Rf1 Nh3 Rf5 Ke7 Rg5 Ba4 Rg7 Kd6 Qh1 e1B Qe4 Bf2 Rg1 Qe1 Rg2 Qh1 Be2 Bg1 Rh2 Bb3 Nd5 Bd4 Ne3 Bf6 d8Q+ Qd7 Qb6 Qc7 Qb5 Ba4 Qg5 Bb3 Bcd5 Kd7 Qee5 Qg6 Rf2 Bd1 Rf4 Qc2 Rb4 Rh8 Rb8 Re8 Bb7 Re6 Be4 Rb6 B4f3 Rb7 B3d5 Nd6 Rh8 Nc8 Bc6+
1bq1b1n1/r6k/1N1P2N1/4PBRN/1b2Qr2/1RB1qr1r/N1K2N2/4q1RQ b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Nd7 h3 Ndf6 gxf5 exf4 h4 g4 Ra6 Ne4 Ra1 Ng5 hxg5 Qe7 Nf3 Qf6 Ng1 Qd8 b4 Kf7 d4 Kg7 Kd2 h5 e4 c5 e5 a5 f6+ Kh7 b6 c4 d6 g3 f7 g2 d7 f3 b5 f2 b7 a4 b8R a3 g6+ Kg7 b6 a2 d5 c3+ Kc2 h4 d6 h3 b7 h2 Bb2 Nh6 Bd3 f1R Nh3 g1B Nf2 Ra3 Bf5 Ng8 Qg4 Qg5 d8Q Bd7 Qe4 Qe3 Qdh4 Be8 Qh3 Be7 f8N Bh4 Qhg2 Kh6 g7 Bg5 Ng6 Kh7 Qgf3 Bd8 Qd1 Ba5 Qc1 Bb4 Qe1 Ne7 Qc1 Rf8 g8N Ra7 Qe1 Kg7 Nf6 Ng8 Nh5+ Kh7 Ra8 Rf6 b8N Rf8 Nd7 Rf6 Kb3 c2+ Bc3 c1Q Nb6 Rff7 Rb8 Rf8 Ng4 Rf4 Qd1 Bf2 Rg1 h1R Qdf3 Qce1 Kc2 Rh3 Qh1 Rf6 Rg3 Bg1 Nf2 Rff7 Nd2 Rf3 Rc1 a1Q Nb3 Qa6 Rg5 Qc8 Rb1 Rf8 Nc1 Rf6 Be6 R6f4 Na2 Bh2 Rb3 Bg3 Ra8 Bh4 Rg1 Bd8 Bf5 Bc7 Rg5 Qd7 Rc8 Bb8 Rc5 Qc8 Rd5 Qg1 Rd1 Qg3 Rg1 Qh4 Nd1 Qhe1 Nf2
4Bq2/n2B2R1/nN1b4/n1k1QQKn/B5bB/2P1n1qr/BN5P/1n1Q2R1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Ra5 bxa5 Qf6 Bb2 Qg5 Bc1 Qd8 Kd2 Ke7 e4 d5 h6 g5 e6 Kd6 b6 f5 a6 a3 b7 d3 Ke3 a2 e7 d2 e8B g4 Kf4 g3 h7 g2 a7 d4 a8B d3 e5+ Kc5 e6 Qe7 Nh3 g1Q Nc3 Nf6 Ba4 Na6 b8Q Qf2+ Kg5 f4 Qb2 f3 Nd5 Nh5+ Qf6 Qg1+ Bg2 f2 B8c6 f1N Nf2 Ne3 Bd7 Qe1 Rb1 a1N Rg1 Nb3 Nb6 Na5 Bd5 Qg7+ Qg6 Bd6 e7 Qf8 Rg2 Qg1 e8B Qe1 Ba2 Qg1 Bdb5 Bg4 Bbd7 Qe1 Bb2 Qg1 Bf6 Qe1 Qc1 d1N Bd8 Nc3 Nd1 d2 Nb2 Qg1 Qd1 Nb5 Qf7 Na7 c3 Nec4 Rc1 Na3 Rg3 Nb1 Qg6 Rg8 h8Q Qe1 Qf6 Rh8 Qgf5+ Qe5 Qe2 Rh6 Rcg1 d1N Qc2 Ne3 Qd1 Nd5 R3g2 Qg3 Q6e5 Ng7 Bf6 Rh3 Kg6 Nh5 Bh4 Qf7+ Kh6 Qf8+ Kg5 Be2+ Qg4 Qgf2 Qgf5 Qe1 Rg4 Qg3 Kg6 Bf3 Kh7 Be2 Rg7 Bg4 Kg6 Bb8 Qee4 Be5 Kg5 Ne3 Nd5 Bb8 Qee5 Bd6 Nb6+
3BnR2/2N1nn2/Bq4N1/2BP1B2/1n1KR3/qkn4Q/r2P3b/nQ2bQB1 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qb3 a5 Qc2 Bf5 gxf5 g4 Qb3 g3 Qd1 Ra6 Nc3 Rg6 Nb1 Rg4 hxg4 Qd7 Qa4 Qc8 Qd1 Qd8 b4 Ke7 e4 Kd6 f6 h5 b6 c5 g5 f2+ Ke2 f3+ Ke3 h4 f7 a4 g6 h3 b5 g2 b7 a3 b6 c4 g7 Kc5 e5 Kb4 e6 a2 e7 h2 e8B c3 Bd7 c2 Qe2 Kb3 Qa6 Nh6 g8Q Bd6 f8Q Nf7 Qh7 Bg3 Ne2 g1B Bf5 Nd7 b8B Nf6 b7 Ne8 Ba3 c1Q Nbc3 Qb6+ Bc5 Qa3 Re1 a1N Nf4 Bh4 Be2 f1N+ Ke4 f2 Nb5 Bg3 Nc7 Ne3 Ba7 f1N b8B Nec2 Qfh6 Nb4 Qh3 Ne3 Ng6 Nd1 Qb5 Bf2 Rhf1 h1N Qa6 Bg1 Rf2 Bh2 Kd4 Rg8 Bb5 Nc3 Re4 Bh4 Bf1 Ng3 Qe2 Kc2 Qe1 Kb3 Ba6 Nh5 Rf3 Nhf6 Qef1 Be1 Rf2 Rh8 Rf3 Ng8 Rff4 Qba5 Bab6 Ne7 B8a7 Qb5 Q7h5 Ned6 Ne6 Rb8 Ke3 Rb7 Qd1+ Ka2 Bd8 Nh8 Nc7 Nbc6 Bd4 Ne8 Bg4 Qbb2 Rf8 Nf7 Bac5 Qb1 Qf4 Rb2 Qff1 Rc2 Kd3 Qb6 Bg1 Nb4+ Kd4 Kb3 Qc1 Rb2 Bf5 Ra2 Qb1+
2nn3N/Rnbk2B1/b1R4K/PNn3Q1/1Qb2BR1/3P3B/3r1r2/1RRn3n b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra4 f4 Qd6 fxg5 Kd8 h4 Ra8 h5 Nf6 g6 Qf4 g5 Ng8 h6 Ke8 Bg2 Qd4 Bf1 Qg7 hxg7 Ra4 Ke2 Ra3 Ke1 Ra8 Kf2 h5 Kg3 b5 Kf4 e5+ Kg3 c5 Kh4 c4 a4 c3 a5 e4 f6 e3 f7+ Kd7 d6 c2 Ba3 c1N Qa4 b3 Nf3 e2 Ne1 b2 Nd3 e1N Qb4 Nc6 Nc3 b1N Nf4 Nb3 Bc1 Nge7 g8Q Nc5 g7 Nb7 g6 Ncd8 Kg5 h4 Rg1 Nd3 Bh3+ Kc6 d7 Ndc5 d3 Kd6 Qb3 b4 Nb5+ Kc6 Rf1 Nc3 Rb1 Nd1 Qc3 b3 Qb4 b2 Bd2 Nf2 Rfc1 Nd1 Be3 Nd5 Bd2 Bd6 f8B Bc7 Be3 Nb6 Bd2 Nd6 Be3 Ba6 Bd2 N8b7 d8R Nbc8 Rd7 Nd8 Re7 N6b7 Re6+ Kd7 Rc6+ Ke8 Qd5 Rh7 g8R Re7 g7 Re2 Be3 Rd2 Ng6 Rb8 Nh8 Ra8 Be6 h3 Bf4 h2 Kh6 h1N Bh3 Rb8 Ra1 b1B Qg5 Ba2 Rab1 Nce6 Be7+ Kd7 Bf6 Rf2 Re8 Bb3 g8R Bc4 Rg6 Rd2 Bg7 Ra8 Rf8 Ra7 Rf5 Nec5 Rf7+ Ke8 Bf8 Be5 Bg3 Nbd6 Qe3 Rd7 Rh7 Rf7 Rg4 Rff2 Ra7 N6b7 Bg7 Kd7 Qg5 Bc7 Bf4
Q2K1QR1/4R3/4rn1P/Bnbn1qB1/N4q2/q2n2r1/2B1PBqR/B3N1k1 b - - 0 1 illegal: No possible last move, all moves rejected
5K1n/nB1Q2PR/2BN2Q1/1rk1n1R1/3r1QQN/3bP1qq/q1QB2n1/3q4 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Bc5 Rh2 Bb6 Rh1 Ba5 bxa5 Kf8 Ra2 Ke7 Ra1 Ke8 Kf2 Ke7 Kf3 Kd6 Ke4 h5 g4 c5 d4 h4 e3 a3 a6 c4 b6 f3 g6 h3 g5 c3 b7 c2 a7 h2 g7 a2 g6 f2 Nd2 Qg5 Bg2 f1Q Qg4 Qf2 Ngf3 Nc6 Nh4 Nge7 g8Q Rb8 a8B Na7 g7 f6 Qf7 Rd8 Qg6 Qg3 Rb1 a1N Rb5 Bd7 Ra5 Bb5 Bf3 Qh6 Bg2 Qh7 Bf3 Qg8 Nc4+ Kc7 d6+ Kc6 d5+ Kc5 Bd2 c1N d7 Nd3 d6 Ne5 Bg2 Nc2 Bf3 Ne1 Bg2 Nd5 Kf5 Nf4 Be4 Neg2 Bc6 Rdc8 d8Q Rc7 Qde8 Rd7 Qh7 Nfg6 Qc8 Nh8 Qhg6 Rd8 d7 Qf7 Nd6 Qa2 Rd1 h1Q Qc7 Qa1 Ke6 f5 Ke7 Qhh3 Rh1 f4 Qc8 f3 Qc7 Rg8 d8Q f2 Qdd7 f1Q Rh2 Rbd8 b8Q Qa2 Bab7 Rgf8 Qbc8 Rf5 Qf4 Rh5 Qdg4 Rd7+ Kf8 Qd1 Q7d8 Re7 Qdd7 Re6 Ne8 Rd6 Rh1 Rd4 Nd6 Kb6 Rh2 Bd3 Rh1 Nc4 Rg5 Ne5 Qdf5 Kc5 Qcd7 Be2 Qb1 Bd3 Qc2+ Kb6 Q6f5 Nef7 Qg6 Qhh2 Rc5 Rf5 Nf3 Qh5 Rc3 Rb5 Rc5 Qhh4 Rg5 Ne5 Qg4f5 Qhg4 Rh7 Q4h4 Q5g4 Qhh3 Qb2 Kc5 Nh4 Nc8 Qb1 Na7 Qc2+
Q2nn3/r1B2R2/3br1rk/QPQNR1N1/QB3r1b/Kbb4P/Q6r/6B1 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 h5 f5 Bd7 g5 Bc6 Be2 Bd7 Bf3 Bc8 Bg4 hxg4 g6 Kd7 Nc3 Qe8 Nb1 Qf7 gxf7 Rh5 Qa4 Rh3 Qd1 Rh8 b4 g5 d4 e5 Kd2 a5 Kc3 c5 Kb2 c4 d6 g3 b6 g2 b5 c3+ Kb3 e4 d5 e3 b7 e2 Qd2 e1R Qa2 a4+ Ka3 g4 Nh3 g1R Ng5 g3 Be3 c2 Nc3 Rgf1 Bg1 Re6 Re1 g2 Re5 Nc6 b8B Rf4 Bc7 Be7 f8B Nd8 f7 Ra7 f6 c1B+ Qb2 Rh6 h3 Rg6 Rh2 Be3 Qa2 Bf2 Bg7 Be1 f8Q Bh4 f7 Nf6 Qg8 Bb7 f8Q Ne8 Qf5 Ba8 Bf8 Bc6 Qh7 Ba8 Qh5 Bb7 Qd1 Ba8 Bc5 g1R Rf2 Rh1 Rf3 Rh2 Bg1 Ng7 Qd4 Ke8 Qc5 Bb7 Qg4 Bc6 Nh7 Kf7 d7 Bd6 Ng5+ Kf6 Rf1 Ne8 Qd1 Be7 d6 Bd5 Qda1 Bb3 Rf3 Rg7 Nd5+ Kg6 Qd1 Kh6 Rf2 Bf6 Be7 Rg6 Qg4 Nc6 d8Q Bg7 d7 Bf8 Qa8 Nd8 Bf6 Bd6 Be7 Re4 Rf7 Rf4 Qd1 Bc4 Kb4 a3 Qa4 Bb3+ Bd4 Re2 Nb6 Nb7 Qb2 a2 Ka3 a1B Bg1 Rh2 Qb4 Bc5 Qa2 Be3 Qba5 Bed4 d8Q Bac3 Bb4 Bc5 Qd4 Bd6 Nd5 Nd8 Qc5
KR5B/Q1k3P1/B1N1Q3/qRnnPN2/2n2q2/1BnQ4/2brn3/q2n2QQ b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 axb5 f4 d4 cxd4 Na3 g5 Nb1 a5 h3 Bh6 h4 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 g4 Nf3 Ba6 Ng1 Bg5 hxg5 Bc8 Kf2 d5 e4 Kd7 b4 h5 c4 d3 c5 f3 Ke3 g3 Kd4 f2 e6+ Kc7 c6 a4 Kc5 d4 e7 a3 e8Q d2 f6 g2 f7 h4 f8Q h3 g6 a2 Bb2 h2 Qe6 d3 Qff3 Qf6 b6+ Kd8 b7 Rh5+ Kb6 Rh7 Ka7 Qf7 b5 Qe7 c7+ Ke8 b6 Nc6+ Ka8 Rh8 b8Q Rh4 b7 Ne5 Nc3 Nc4 Nb5 Nf6 Nd4 Nd5 Nge2 g1N Rb1 a1N Qa7 Nb3 b8Q Nc5 Ng3 Ne2 Qbb3 Rh7 Bg2 f1Q Nc6 Rh4 Qe1 d1N Bh8 d2 e5 Rd4 g7 N1c3 Nf5 d1N Bh3 Qf2 Qg1 Rd2 Qba3 Qg3 Rb5 Qf4 Qb3 Bd7 Qd3 Bc8 Qh6 Ba6 c8B Qc7 Bb7 Kd7 Qbb1 Qb6 Qe6+ Kc7 Bg2 N5e3 Bd5 Qa5 Rb4 Bb5 Qc1 Ba4 Rb5 Bc2 Qa1 Nd6 Bb3 Ned5 Qgg3 Nb2 Rb1 h1Q Qg1 Nbd1 Rb2 Nc4 Qb1 N1e3 Qbe1 Ned1 Qh4 Qg2 Qhh1 Qgf1 Rb6 N1e3 Bc8+ Nb7 Ba4 Qh6 R2b5 Qhf4 Bb3 Qd1 Qa6 Nc5 Rb8 Qb1 Bb7 Ned1 Qa7 Qba1 Ba6+
B3KnbQ/n3bPQ1/qR1q3n/k1N2Pn1/2N1RR1b/8/1n2RQ2/2BR1q2 b - - 0 1 legal: proof: g4 h5 a4 d5 e4 dxe4 h4 f5 gxf5 b5 axb5 a5 f4 g5 c4 g4 f6 Ra6 f5 Rd6 Nc3 Rd4 Nb1 Rd5 cxd5 Rh7 Bc4 Rg7 Bf1 Rg5 hxg5 Qd6 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 Kb6 d4 h4 b4 c4 g6 h3 g7 h2 d6 c3 d7 e3 Ke6 g3 Kf7 e5 d5 a4 d6 g2 Na3 e4 Qd2 e2 Ra2 e1N Nf3 g1N Nd4 e3 Bg2 e2 Ba8 c2 Ne6 Be7 Nc5 Ngf3 Rf1 Nd4 Rf4 h1Q Qe3 Ba6 Qf2 Qf1 Re4 Qc7 d8Q Ndc6 d7 Na7 Ke8 Nh6 g8Q Nf3 Qg7 e1B Qc8 Ng5 d8R Bb7 Rd1 Bd5 Qd8 Bg8 f7 Nd7 Rb2 Nc6 Ra2 Nf8 Nc4+ Ka7 Qdd4 a3 Qh8 Qg3 Qdg7 Qd6 Rb2 a2 b6+ Kb8 b5 a1Q b7 Ka7 b8R Qa6 Qe3 Bh4 Rb6 Qdd3 Qf2 Qd6 Be3 c1N Re2 Nd3 Bc1 Nb2 Rf4 Qg6 Ree4 Ne5 Re6 Nc6 R6e5 Qd6 b6+ Kb8 b7 Kc7 Re2 Na7 R5e4 Kc6 b8R+ Kc7 Rb7+ Kc6 Rc7+ Kb5 Rc6 Kb4 Ne3+ Kb5 Rb6+ Ka5 Nc4+
bR1N1NQ1/QN1K1Q2/r4q1N/2b2r2/3R1B1q/PBN2nk1/P2rq1pn/8 b - - 0 1 legal: proof: e4 d5 g4 h5 gxh5 a5 c4 f5 exf5 a4 cxd5 c5 d4 a3 bxa3 cxd4 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 b5 h4 g5 f4+ Ke4 d6 e5 f6 g4 f5 b4 f7 b3 f6 b2 h6 d3 h5 d2 h7 Kf4 h6 g3 Bc4 g2 Nf3 e4 Ne1 e3 Rh4+ Bg4 Nc3 b1R Qa4 d1Q Nd3+ Kf3 Qa7 e2 Bb3 e1Q Bg5 Bg7 f8Q Nd7+ Kc6 Rb2 f7 Bd4 Nc5 Kg3 Nb7 Bc5 Rb1 Rd2 Qe7 Qf2 f8N Qf6 Qf7 Qe2 Rb2 Bf5 Rd4 Qde7 Kc7 Ne5+ d7 Nf3 Rb1 Q7e4 d8N Qh4 Rb2 Be4 Kd7 Ne7 Rb1 Nd5 Rb2 Rg8 h8Q Ne3 h7 Ng4 Rb1 Rg7 Qg8 Ngh2 h8N Rh7 Qfg7 Rh6 Nhf7 Rh5 Nh6 Bd5 Q7f7 Be4 Qb6 Ra5 Qa7 Ra6 Be6 Bd5 Rb5 Be4 Bb3 Bd5 Nd6 Be4 Rb8 Ba8 N6b7 Kf2 Bf4 Rf5 Bg5 Kg3 Bf4+
2q2k2/B1Rn3B/1qbK4/R2n3P/BP3Q2/B1bNnN2/1p2BQ2/q4rQr b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 gxh5 Rh7 Kf2 Rh6 Ke1 Rh8 b4 a5 bxa5 b6 a3 b5 Nh3 b4 Ng1 b3 Bb2 Qe7 Bc1 Qb4 axb4 Ra6 Bg2 Ra7 Bf1 Ra8 Kf2 c5 Kf3 f5 e4 g5 d4 c4 h4 c3 a6 c2 h6 Bg7 h7 Bh6 a7 Bd7 h5 Bf8 e5 Na6 d6 Bb5 d5 Ne7 d7+ Kf7 d8Q Nc8 d6 Ne7 d7 Bh6 Ne2 Nb8 Qb6 Nd5 d8B Bg7 e6+ Kf8 Ba3 c1Q Qf2 Nd7 Nd2 Bc6 Bb6 Bc3 Bd4 Re8 a8B Rc8 Ba7 g4+ Kg2 g3 Kf3 Rg8 h8Q g2 Qhd4 g1Q Rh3 Qc2 Nc1 Rg4 Qde1 Rh4 Nd3 Qc1 Rg3 Rh1 Be2 b2 Rg5 Qc2 Rc1 Re8 Bb7 Re7 Ba6 Rf7 Bb5 Rf6 Ba4 Rf7 Rg7 Qg6 Qeg1 Qf6 Rg5 Qg6 Kg2 f3+ Kg3 f4+ Kg4 Qf6 Rf5 Qd8 Qf6 Qb6 e7+ Kg8 e8B Kf8 Q6d4 Rf6 Bg6 Rf7 Qfh2 f2 Bh7 f1Q Qhf2 f3 Qf6 Qe1 Rg5 Qed1 Kf5 Qe1 Ke6 Qed1 Qfh2 f2 Qhf4 f1N Kd6 Nfe3 Qff2 Qf1 Q6f4 Qe1 Nf3 Qed1 Nde5 Qf5 Rc2 Qa1 Nd3 Qg4 Q4g3 Qc4 Qf4 Qca6 Rc1 Qc8 Rf5 Bd2 Rc5 Bc3 Re5 Rf5 Re7 Rf7 Ra5 Ne5 Nh4 Bd2 Qfg4 Bc1 Qfe1 Bd2 Rc7 Rf1 Nf3 Nd7 Qef2 Bc3 Qf4+
n3N1rr/R2KR3/Pb3q2/b2P4/3B1BQ1/k2R1n1R/p1b1n3/2BNQRq1 b - - 0 1 illegal: No possible last move
1Q1kB3/nb2rQ2/1KR2rP1/3P1Q2/B1p3Q1/n2q1Nr1/1N1Qr2r/1R1B1b2 b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bg4 b3 Bc8 h4 Ne7 g4 Rg8 Ba3 Nd7 Bc5 Ba6 Be3 Bc8 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Nh3 Rh8 Ng1 Ng8 Kf2 f5 d4 h5 e4 c5 b4 a5 e6 h4 e7 f3 Ke3 a4 e5 a3 b6 c4 b5 f2 g7 a2 d6 h3 g6 h2 b7 Rh5 b6 Nd7 b8Q Ra7 b7 Nc5 Be2 f1B Nf3 Bg2 Nc3 Rg5 Na4 Na6 Nb2 f4+ Ke4 Bf1 Kd5 Rg2 Kc6 Nc7 Kb6 Nb5+ Qc7 Rg3 b8Q Qd7 Qc5 Na3 Qd2 Qf5 Bd1 Qd3 d5 Kd7 e8B+ Kd8 e6 Ne7 g8Q Nc6 Qd4 Re7 d7 Na7 Rb1 a1R Qf7 Ra2 Qde5 Qe2 Qef5 Qd3 Rg1 h1R Qg4 Bg2 Re1 Bf1 Qe5 Rh2 Qef5 Bb7 Re3 Qe4 Rb3 Re2 Rb5 Rh2 Rc5 Qd3 Rc6 Re2 Na4 Rc2 Nb2 Rh2 Qc1 Rcf2 Qd2 Re2 Rd6 Qe3+ Nd4 f3 Qfc2 f2 Ka5 Bc8 Ra6 Kc7 d8Q+ Kb7 Ba4 Bg2 Qff3 f1R Qd6 Rd7 Qf7 Rf6 e7 Bf1 e8B Re7 Qcf5 Qd3 Q6b4+ Kc7 Nf3 Kd8 Rc6 Ba6 Qb8+ Bc8 Qbf4 Ba6 Kb6 Bb7 Qb8+
3Nnk2/1RRBb1N1/3rP2b/8/1PB1KN2/3QQB2/1qpbnBB1/1bb3r1 b - - 0 1 illegal: No proof kernel
Q3Rb2/NB1nb2Q/bpRP1r1r/4R1P1/K2R1b1R/4N1nN/B5b1/1q3k2 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 c4 g4 cxd5 Ra6 h3 Rg6 hxg4 Rc6 g5 Rxc1 g4 Kf7 f4 c5 a4 e5 d4 h5 Kd2 b6 d6 c4 a6 h4 g6+ Kf6 g7 h3 d5 e4 g5+ Kf7 f6 Kg6 a7 Kf5 a8R h2 a5 Ne7 g8B Nbc6 a6 Qd7 f7 Rh5 a7 Bh6 f8R+ Kg6 f5+ Kg7 f6+ Kg6 f7 Kf5 Rd8 Kf4 f8R+ Kg3 Rfe8 Kf2 Na3 Qf5 d7 Nb8 Qc2 e3+ Kc3+ e2 Kb4 c3 Nc4 Ba6 Ra5 Bf8 Bg2 Rf1 Ne3 Rh6 Ka4 Qd3 Bf7 Nf5 Nh3+ Ke1 Re6 Ng3 Rc6 Qh7 Qf5 c2 d6 c1B Ba2 Qg6 Qf7 Qb1 Re8 Bb2 d8N Bf6 Qh5 B6e7 Re5 Nd7 Qf7 Qc1 Qh7 Qb1 Ng1 Rff6 Nh3+ Kd2 Rac8 e1B a8Q Ke2 Rc4 Bb4 Nc6 Bd2 Na7 Bc1 Rd1 h1B Bb7 Bg2 Rdd4 Ke1 R8c6 Bd2 Nc2+ Kf1 Rh4 Be3 Rcd4 Bf4 Ne3+
Q2R2B1/KP3r2/Rp5Q/N4rPk/b3r1Rr/4Nn1Q/r2bB2R/n2q1R2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Nf6 b6 Kf7 b5 Nh5 b7 Nc6 b8R Ke8 b6 Nf6 b7 Ng8 Bb2 Nb4 Bd4 Na6 Bb6 axb6 Ke2 Kf7 Kd3 h5 Kc4 e5 Kb5 c5 g4 c4 f4 h4 d4 c3 d6 h3 g6+ Kg7 f6+ Kh6 g7 c2 f5 c1R d5 h2 f7 e4 d7 e3 d6 e2 f6 e1R Na3 Ne7 g8B Re3 Qf3 Nf5 Nc4 Kg6 Qh3 Nb4 Na5 Re8 Nf3 Ng3 Be2 Nf1 Nd2 Rc7 Ndc4 Nc2 Ne3 Bh6 f8R Nd2 f7 Re4 Rhg1 Bf4 g5 h1R Rg4 Nf3 Ra2 Ra6 Ra8 Rf1 Rb2 Rh4 Ra2 Qf6 d8Q Qd4 d7 Qd1 Qe8 Na1 d8R Be6 Qc6 Rd7 Ra7 Re7 Qc8 Bf5 Qa8 Bd7+ Nc6 Bd6 Qb8 Ng1 Qa8 Rh6 Bf3 Rh4 Rh2 Bb4 Be2 Ra2 Ra5 Be8 Ka6 Kh5 Ka7 Bd2 Ra6 Rff4 Na5 Ba4 Rd5 Rd7 Rd8 Rf3 f8Q Rdf7 Rf5 Rf2 Rf3 Rf1 Rfg3 R1f6 Rf3 Rf5 Rf1 Nf3 Qh6#
1qbrB1K1/n1B2Q2/k1RN1N1R/1rP3p1/r4PQ1/1B3R1n/3n4/2Rnb1R1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Ke2 e5 Kf3 g5 Ke4 d6 Kd5 Kd7 f4 Kc7 c4 Kb7 h4 d3 b6 d2 f6 e4 h6 e3 h7 e2 h5 e1N f7 Ka6 h6 Ra7 b7 Qd7 Nf3 Qe7 Rg1 Qe2 Nc3 Bf5 Ne5 Ra8 Ng4 Bd3 Nf6 Qe8 Nb5 Qe3 Qg4 Bg7 f8Q d1N Qf7 Qe8 Be3 Ng2 Bb6 Nh4 c5 Bf5 Bc4 Bc8 Bb3 Nf3 Rc1 Nc6 b8R Nd2 Rb7 Qd8 Rc7 Na7 Rc6 Qc7 Re1 Qb8 Rg1 Bb7 Ke6 d5 Nd6 d4 Qd7 d3 Kf7 Bc8 Qdf5 Ne7 Qd7 Rd8 h8R Nd5 h7 N5c3 Qe8 Nce4 Kg8 Rd7 Qf7 Nef2 Nde4 Kb5 a6 Nh3 Nd6+ Kb4 Nfe8 Bc3 Nf6 Rb7 Kg7 Nc4 Rd8 Bd2 h8R Be1 Rh6 d2 Kh7 Bf5+ Kg8 Bc8 Nf5 Kb5 Rd3 Ndb2 Rdc3 d1R Rf3 Nd2 Nd6+ Kb4 Rc2 Ra1 Rcc3 Ra4 Rc1 Nd1 Bd8 Nb5 a7 Rb6 Bc7 Ka5 Bd8 Ka6 Bc7 Qb7 Bd8 Rb8 a8B Na7 Rc7 Bf5 Rc8 Qc7 Bc6 Rb5 Be8 Qb7 Ba5 Be6 Rc7 Rd8 Bb6 Bc8 Rc6 Qb8 Bc7+
1Q3Kb1/BP1R2n1/1R2r2N/b1pr2P1/kB4B1/qb1B2B1/2nb2Q1/N4Qr1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Kf3 e5 Kg4 c6 Kh5 h6 Kg6 b3 Kf7 e4 d4 b2 g4 h5 f4 e3 d6 h4 b6 e2 d5 e1B b7 h3 f6 h2 g6 Ra3 f5 Rh5 g7 Rhh3 g5 Raf3 Bd3 Qa5 Qe2 Bf2 Bf4 Qd8 Nd2 b1B Ra6 Bg3 Qg2 Rh6 Nh3 Rh8 Rd1 h1R Nb3 Be1 Bg3 Rg1 Rb6 Rh6 Na1 Rg6 Nf2 Bd2 Ng4 Bc2 Nh6 Ne7 g8B Na6 Bh7 Ba4 Be2 Rd3 Bg4 Ba5 Rd2 Qc7 Rd1 Bb3 Rd2 Kd8 d7 Qd6 Rd1 Kc7 d8B+ Kd7 Bc7 Bd2 Bb8 Nb4 Ba7 Kc7 Ke8 Be6 f7 Nc2 f6 Ba5 Rd2 Nf5 Rd1 Bg7 f8B Bg8 f7 Bgc3 Be7 Be1 f8Q Re6 Qf6 Ng7+ Kf8 Beb4 Qff1 Bd2 Be4 Kd7 Bef5 Qa3 Bb4 c5 d6 Rd5 Bd3 Ba4 Rb5 Kc6 d7 Bb3 d8Q Bc3 Qb8 Bd2 Bc3 Ba2 Rbb1 Bc4 Bb4 Kb5 Bc3+ Ka4 Rb6 Bb3 Bb4 Rc6 Re1 Rcd6 Re7 Re6 Rd7
1QK1Rr2/rP1Q2Q1/2Q2n1P/3br2Q/4n3/k1pqB3/1nB1N2B/bnN2R2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 g5 h4 g4 f4 g3 f6 e6 b6 g2 b7 b3 f7 b2 f5 c6 f6 Nh6 Bd3 Qd7 Bc2 Rg8 Qf3 Ra6 Nc3 b1N Na2 Bg7 f8Q+ Kc7 Kc5 e5 d4 e4 f7 Bf6 Qg7 e3 f8Q e2 Qff7 e1N d6+ Kd8 d5 Ra7 Kb6 c5 Rh2 c4 Ne2 Nd3 Be3 Nd2 Rf1 Na6 Nac1 Nb1 Qfg6 Qf5 d7 Ba1 Qc6 c3 Qf4 Rh8 Qb8 Nac5 Rh3 Qh7 Rhf3 Re8 Rf8 Nb2 Rg8 Qd3 Rh8 Nf7 Rg8 Ke7 Kc7 Rd8 d6+ Ke6 Rh8 Ng5 Rhf8 Re8 d8B Nd7 Rh8 Nf6 d7+ Ke5 Be7 Rg8 d8Q Be6 Qdd7 Bd5 Bd6+ Ke4 Bh2 Re8 Qh6 g1R Qf8 Re5 Kc8 Nh3 Qfe7 Nf2 Re8 Rg8 Qg7 Rh8 h6 Rf8 h7 Nfd1 Beg1 Nf2 h8Q Ke3 h5 Kd2 Ba4 N2e4 Qhh7 Bb3 Be3+ Kc2 Bb5 Bc4 h6 Bd5 Qhg6 Ng5 Qh5 Nge4 Na2 Kb3 Ba4+ Ka3 Nac1 Re7 Bb3 Re5 Bc2
1nNRqn2/1B1rqBQb/1nNP3Q/4r1R1/1K6/2N1p1Pn/1b6/3QNkN1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Qd7 cxd5 Qd8 Ba3 Rb7 axb5 Ra7 b6 Ra6 b5 Ra8 Bb4 axb4 f4 Kd7 d4 Kd6 Kd2 h5 b7 e5 f6 c5 g3 h4 b6 c4 f7 h3 f5 e4 f6 h2 g6 b3 Kc3 e3 g7 b2 Ra5 Rh7 Bg2 Qe7 Kb4 Ra6 Nc3 b1N Rc5 Bh3 Rc8 Bd7 Rd8 Na3 Be4 Ra5 Bg2 Nh6 g8B Bg7 f8Q Ng4 f7 Nf6 Bf3 Bh8 Qg7 Qe8 f8Q+ Qe7 Nb1 c3 Bf7 c2 Nc3 c1Q Qh6 Nc4 Qfg7 Qe8 Bg2 Ke7 Be4 Bf5 Bf3 Nfd7 Be4 Nf8 Bg2 Nbd7 b8N Be4 b7 Ncb6 Na6 Nb8 Nc5 Bc2 Nd3 Bb1 Ne4 Qc7 Ne1 Bd3 Nc3 Bg6 Qg8 Kf6 d6 Kf5 d7 Re5 d5 Rg7 d6 Bh7 Ngf3 Kg4 Rf1 Rg6 Qgg7 h1N Rf2 Rgg5 Rb2 Nf2 Ng1+ Kf5 Ra2 Nh3 Ra5 Rh5 Rc8 Rg5 d8N Qce7 Nc6 Rh5 Rd8 Rg5 Nge2 Kg4 Na7 Rg6 Bh1 Rgg5 Nc8 Rg6 Ng2 Kf3 Ne1+ Kf2 Ng1 Kf1 Bc6 Rf6 Rb5 Rf2 Be4 Ra2 Bed5 Ra7 Bh1 Nb8d7 b8N Rc7 Nc6 Nb8 Ra5 Rd7 Rd5 Re6 Rh5 Re5 Rg5 Qf6 Nd4 Rd5 Na2 Rc5 Qg8 Bg7 Bb7 Qfe7 Nc6 Bb2 Qgg7 Re5 Nc3
3B4/1n2K1Bp/1n1NnN2/Q2R3n/3PQPN1/4Nr2/N2r2Qq/kbR1b1q1 b - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 exf5 b4 cxd5 b3 axb3 Bd7 b4 Be6 b5 Bc8 b4 g5 hxg5 a6 b6 Qd6 b7 Nh6 b5 Qd8 b6 Ng8 Bb5+ axb5 Ke2 Kf7 Ke3 e5 Ke4 c5 d4 b4 g4 b3 f6 c4 d6 Ke6 d7 c3 g6 c2 g7 b2 g5 Nh6 g8Q+ Nf7 g6 Qe8 d8N+ Kd6 g7 Qd7 Nf3 Ra2 Nc3 b1Q Rh5 Qc7 Nd2 Nd7 Kf5 e4 b8N e3 b7 e2 Qe1 Ng5 f7 Nb6+ Kf6 Rb2 f3 Bf5 Nf1 Ne6 Na2 Kd5 Nbc6 Kc4 Qa5 Kb3 Bg5 e1N Ne3 c1N Ne5 Bb4 f8B Ne2 Ndf7 N2f4 b8N Ned3 Nbd7 Qg1 Rc1 Qc2 Nd6 Qch2 Qf7 Bd2 g8Q Be1 Qfg6 Nc5 Bh4 Bc2 Qe4 Bb1 Qg2 Nb7 Bg7 Rd2 N5g4 Kb2 Rd5 Nh5+ Kf7 Ka1 Bd8 Rf8+ Ke7 Rf5 Ndf6 Rg5 Nh6 Rg3 f4 Rf3 Nhg4
qb2b1kQ/b3P3/1b4Q1/2n2r2/7N/BR2P1pQ/NrR2B1n/K1Q2qNQ b - - 0 1 illegal: No possible last move, all moves rejected
1b2B3/1n6/k1N1PNbp/n6q/QKPBq1N1/1R3n2/1bQ5/RrNQ1qN1 b - - 0 1 legal: proof: d4 b5 f4 c5 h4 cxd4 a4 a5 axb5 e5 fxe5 g5 g4 f5 gxf5 g4 Ra4 Ra6 Ra3 Rg6 Ra1 Rg5 hxg5 Ba3 Rh4 Be7 Rh1 Bf8 Kd2 d5 e4 Kd7 b4 Kc7 f6 Kb6 e6 h6 g6 d3 Kc3 g3 e5 g2 e7 a4 e8Q d2 f7 a3 e6 a2 g7 Ka7 Bb2 Nd7 Rh3 Ne7 g8N Nc5 Nf6 Nc6 Ng4 Bd6 f8N Bb7 Nh7 Qh4 Nhf6 d4+ Kc4 d3 b6+ Ka6 Bd4 Ba8 b7 Bb8 Nc3 Qh5 Nce2 Na5+ Kc3 Qd5 Qc8 Qe4 Nc1 Rd8 Rf3 Rd6 Qe8 Rb6 Qa4 Rb5 Kb2 Rb6 Ka3 Rb5 c4 Rb6 Qdc2 d1Q Be2 d2 Rb3 Qf1 Bf3 d1Q b5+ Ka7 Kb4 Qde2 Rab1 a1B Qd1 Bb2 Ra1 Be5 b8N Nb7 Ne3 Bh2 Bh5 Q2g4 Bg6 Qh5 Be8 Be5 Neg4 Bf4 Nge2 g1N Qc2 Nf3 Ng1 Nc5 Qd1 Kb7 Nc6 Bb8 Nce5 Ka7 Qc2 Rb7 b6+ Ka6 Nc6 Rd7 Bf2 Rd1 b7 Re1 Bd4 Rd1 Nd3 Rb1 Qd1 Bg3 b8Q Nb7 Qd8 Bb8 Nc1 Nc5 Nce5 Bc6 Qc2 Nb7 Bg6 Be8 Nc6 Bf7 Qd7 Bg8 Be8 Bh7 Bf2 Bf5 Qdd1 Bg6 Bd4
kq1R4/1Q1b1NQP/B4n2/3QqQ2/1KQq4/r1p1r1r1/1Pb1b2B/2R1NB2 b - - 0 1 illegal: No possible last move, all moves rejected
b2k1Qb1/2NPRp2/b2rQ1RQ/2B4q/br2N3/2R2R1b/P5B1/Kn2R1r1 b - - 0 1 legal: proof: h4 d5 f4 e5 fxe5 g5 hxg5 a5 b4 axb4 c3 d4 Kf2 c5 Rh2 c4 Ke1 Bc5 Rh6 d3 Rh1 Bd4 cxd4 c3 Ba3 c2 Rh4 Na6 Bc1 Nc5 Rh5 Na4 Rh1 Nc3 dxc3 Be6 Nh3 Bg4 Ng1 Bc8 Kd2 h5 g4 b5 e4 h4 g6 h3 c4 h2 g5 b3 Kc3 d2 Kb2 b4 c5 Qb6 g7 Rh4 d5 Rb8 g6 Nh6 g8R+ Ke7 e6 Qc7 e5 Rg4 g7 Rg2 c6 Rf2 Bg2 Rf4 Na3 Rf2 Qh5 d1B Be3 c1R+ Ne2 Nf5 Bc5+ Nd6 Re1 h1B Nb5 Rf6 Ng3 Qa5 c7 Ba6 c8R Bg4 Qh6 Bh3 Re3 Rg1 Rae1 Rg6 Kb1 b2 Nc7 Rb5 Rf3 Rb6 Be3 Nc4 Ne4 Rd6 Bc5 Rg4 Rgd8 Rf4 g8R Rh4 Rg6 Nd2+ Kc2 b1B+ Kb2 b3 Ka1 Bc2 Nc3 Qb4 Ba7 Qb6 Rgg8 Rf1 Ne8 Be2 Rf2 Bh7 Be4 Rg4 Rg6 Qc5 Rc6 Qa5 Nc7 Rfg1 Rc4 Qa3 Bc5 Bef1 Rf4 Bf3 Rh8 Bd1 Bg2 Bf3 Rf8 Bg8 Rf5 Rd4 Rd8 Bd1 Ne4 Bfe2 Rc2 Ba6 Rf8 Qa4 Rc3 Qc4 Rd8 Qe2 Rf4 Qh5 Rff3 Rb4 Rc8 Bde2 Rd8 Beb5 Rc8 Bh7 Rf8 Be8 Rfg8 Kd8 e7+ Kc8 e6 Rd7 Rf8 Bg8 d6 Rd8 Rd1 Bc6 e8Q Ba8 e7 Rc4 Qc6 Rb4 Qb6 Kd7 Re1 Kc8 Kb2 Kd7 e8Q+ Kc8 Ka3 b2 Qe7 b1B Re8 Bc2 Qef8 Bb3 Kb2 Nb1 Re7 Bc2+ Ka1 Ba4 Ne8 Rd7 Qc6+ Kd8 Qd5 Rdb7 d7 R7b6 Qe6 Rd6 Nc7+
Bqn2qk1/1B3N2/KQ4R1/1Nrq3b/N1R2q2/2p4P/Q1R2qPr/2bRR3 b - - 0 1 illegal: No proof kernel
Q7/4knPq/nb1b1N1n/2N2q2/1R1BQ1nN/2KB2pn/1N4PR/1rN1R3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 b4 e5 f4 exf4 a4 Nh6 axb5 Ng8 h3 g5 Nf3 a5 Bb2 g4 Ng1 a4 Bc1 Ra5 bxa5 g3 Rh2 Qg5 Rh1 Bg4 hxg4 Qd8 e4 c5 d4 h5 Kd2 f5 b6 c4 e5 f3 g5 f2 e6 h4 g6 f4 g7 h3 b7 f3 e7 a3 d6 a2 d7+ Kf7 e8N h2 a6 Ke7 d5 Kf7 d6 Nh6 a7 Qa5+ Nc3 Na6 b8R Qh5 Bd3 f1Q d8Q f2 d7 Bd6 Nce2 c3+ Kc2 Qf5 a8N Qh7 Be3 Rf8 Qc8 Ke7 d8N Rf5 Rb4 Rb5 Rc1 a1B Qe1 Rb8 Kb3 c2 Ne6 Bd4 Nf6 Bb6 Bd4 Rb7 Rb1 c1N+ Kc3 Rb8 Nc5 Rb7 Bc2 Nd3 Nf3 Ne5 Nh4 Nef7 Be4 Rb8 Nc1 Qb5 Qe2 f1N Bd3+ Ne3 Qf3 Neg4 Qe4+ Nfe5 Re1 h1N Qg8 Nhf2 Ra1 Bd8 Nb6 Nh3 Nba4 Bb6 Nb2 Qd7 Rh1 Qdf5 Rh2 Rb7 Qa8 Rb8 Qf4 Nef7 Qfe4+ Qe6 Rb3 Nfg5 Nd1 Ngf7 Ne2 Bd8 Rbb1 Rb4 Ra4 Rb2 Rb4 Bb6 Rc1 Rb1 Nb2 Qe5 Re1 Qe6 Nc1 Qe5 Ne6 Qef5 Nc5+
1N2q3/1QqBB1q1/2r1b3/2nRB3/bkP1N1R1/1pnQ1K1n/1N3PnB/B7 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 b5 c4 f5 exf5 b3 Nf3 c5 Bh3 e6 Ng1 Ra5 Ba3 b4 Qc1 Rb5 cxb5 c4 Qd1 c3 Bf1 c2 Bc1 Bc5 Ke2 Bd4 Ke1 Bc3 dxc3 Kf8 Kd2 Ke7 Ke1 Ke8 Ke2 Ke7 a4 g5 h4 d5 b6 Kd6 b7 Kc5 f6 b2 c4 e5 h6 d4 a5 d3+ Kf3 d2 h5 Bd7 h7 Be6 f7 Na6 b8N Qe8 f8B+ Ne7 Nc3 b1Q h6 Qb2 Nge2 Rg8 h8B Rg6 h7 g4+ Ke3 e4 Ng3 Rh6 Bh3 Rf6 Qe2 d1B Rg1 Rh6 Bd2 c1Q Qd3 Ba4 Nd1 Qg7 Nb2 b3 Ke2 Qcc3 Bf4 e3 Rad1 Kb4 Ne4 g3 Kf3 g2 Bh2 Nc5 a6 e2 a7 Qce5 a8Q Nd5 Be7 Nc3 Bf5 Qc7 Rd2 Bf7 Bd7 Rc6 Rdd1 Be6 Qa7 Qgg8 B8e5 Qg7 h8B Rd6 Qb1 Rc6 Rd5 e1N+ Ke3 Qh5 Qd3 Qe8 Qb7+ Ka5 Rf1 g1N Kf4 Nh3+ Ke3 Qef7 Rg1 Qe8 Rg4 Ng2+ Kf3 Nb5 Nd1 Kb4 Ba1 Qgg6 B8e5 Qg7 Qa8 Nc3 Nb2 Qgg8 Qa7 Qg7 Qb7+
qBn4R/1q1r2Q1/6K1/3R4/B1PN1PNq/1Q1n1RR1/1Qr1qn1p/1b1k2R1 b - - 0 1 legal: proof: g4 b5 d4 c5 f4 cxd4 a4 f5 axb5 g5 h4 e6 hxg5 Qc7 e4 Bd6 exf5 Bb7 g6 Qb6 g5 Bf8 f6 Bg7 fxg7 Qd8 Qg4 Ba6 Qd1 Bc8 Kf2 Ke7 Kg3 Kd6 Kg4 Kc5 Kh5 Kb4 c4 d5 b3 a5 b6 d3 b7 d2 Be2 d4 Qf1 d1N Qf2 a4 Qg3 d3 Nf3 d2 Na3 Kc3 b4 e5 b5 e4 b6 e3 Rf1 Ra7 Nh2 Bf5 Nb5+ Kc2 Bb2 a3 Be5 a2 Ng4 Nf2 Rad1 Na6 b8R a1Q b7 Ne7 g8Q Qb6 g7 Nc5 g6 Nc8 Kh6 Ncd3 Nd4+ Kb2 Bf3 e2 Bc6 e1Q Ba4 Qa6 Kg5 h5 Qf8 h4 g8R h3 g7 h2 Ra8 Bg6 Bb8 Rh7 Rh8 Kc3 g8R Rd7 Qg7 Qe2 Rg1 Qa2 Rdf1 d1Q Rg2 Kd2 Rd8 Qde1 Rh3 Re7 Rd5 Rd7 Qf3 Qb3 Rhg3 Kd1 Kh6 Ne5 Qc3 Bb1+ Kg5 Qa5 Qb2 Ned3 Kg6 Qd8 Bc6 Ra2 Ba4 Nh1 Rff3 Nhf2 Bd6 Qea5 b8Q Qh4 Qb6 Qa6 Bb8 Qb7 Bc6 Qa3 Ba4+ Ke1 Q2b3 Rc2 Qb2 Kd1 Q6b3 Qa2 Bd6 Nb6 Rh8 Nc8 Bb8 Qa3 Bb5 Qa5 Ba4 Qaa8 Rg1+
qq2n1K1/bRB5/1Q3Q1q/1qN2RP1/r1Nnp2b/1b1BB1R1/RP1R4/6k1 b - - 0 1 illegal: No possible last move
n1b1Qb2/1RR5/Nq3BNP/Q1n2q1k/1pKb1B1R/1Q1n2R1/3brR1P/8 b - - 0 1 legal: proof: e4 d5 g4 a5 b4 f5 bxa5 d4 exf5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Bc4 Ra6 Be2 Rh6 Bf3 Rh5 Be2 Nc6 gxh5 Nb8 Bb5+ Kf7 Bd7 b5 Be6+ Ke8 Bf7+ Kd7 Bg6 hxg6 Kf1 Ke8 Ke2 Qd7 Ke1 Qd8 f4 Kf7 Ke2 c5 Kd3 e5 a4 b4 f6 g5 h6 Kg6 d6 g4 f5+ Kg5 d7 e4+ Kc4 g6 d4+ e3 d5 g3 a6 g2 a7 Rh7 a8Q Nc6 a5 Nce7 f7 Bb7 a6 Bc8 d6 Nc6 f6 Qe7 d8Q Qb7 d7 Nce7 a7 Qf3 Ra3 Kh5 Qb3 g5 Nc3 g4 Nd5 g3 Nh3 g1Q Qe8 e2 d8B e1N Nc7 g2 Bf4 Nd3 Na6 Nd5 Be7 Qgf2 Rc1 g1B Bd8 Nc7 Qd5+ Bf5 a8R Rg7 Be7 Rg2 Rb8 Na8 Rb7 Q3e3 Qdd8 Bc8 Qa5 Qff3 Rc3 Re2 Rc1 Bf2 Bd8 Qg4 Rg1 Qg6 Rg4 Qe5 Rc7 Qef5 Rb7 Bd4 Rc7 Bd6 f8R Be7 f7 Nf6 Rg8 Ne4 Rg7 Bf8 Bdg5 Qb6 Bf6 Nc3 Ra1 Na4 Rag1 Qg6 R1g3 Qh7 Kd5 c4 Rb7 c3 Kc4+ Nac5 Rc7 Bd6 f8R+ Qg6 Rb7 c2 Rgc7 c1B Ng1 Bc3 Nf3 B1d2 Ne5 Bd4 Rff7 Qg5 Ng6 Bf8 Rfe7 Re1 Re2 Qf5 Rf2 Re2 Rh4#
2BRQ1q1/3NB1R1/n1n1qrRp/7q/1Q2R1N1/1b2K1P1/1R1rP1Nq/4r1k1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 Be7 f4 exf4 g4 Bf8 Ra6 f5 gxf5 g5 Ra4 g4 Ra1 g3 Ra6 g2 Ra1 Bc5 Qc2 Qg5 Kd1 Bb6 Qb3 Bf2 Kc2 Qh4 Kd3 Bg3 Qd1 Bf2 Kc2 Qd8 Kc3 Qd6 Kc2 Bg3 hxg3 Qc6+ Kd3 Kd7 Ke4 Qb6 Kf3 Qf6 Kf2 Qd8 Ke1 Ke8 Kf2 Kf7 b4 Kf6 d4 Kg5 f6 Kg4 d6 a5 f7 c5 f8N h6 d7 f3 d5 c4 b6 c3 b7 c2 d6 a4 b5 a3 b6 a2 Qd4+ Kf5 Bg5 c1R Qb4 Rd1 Be7 Rd5 Ke3 f2 Na3 Rd2 Nh3 g1Q Nc4 Kg4 Nf4 Na6 b8Q Qh2 Ng2 Kh3 b7 Ra7 Rb1 a1Q Ne5 Qa2 Rb2 Qe6 Qa8 Qe8 b8R Qh5 d8R Rc7 d7 Rc1 Qc6 Re1 Rb6 Rh7 Qce4 Rf7 Ng4 Rf6 Re8 Bb7 d8R Bd5 Nd7 Bb3 Rf8 Qc4 Rf7 Qe6 Bd6 Ne7 Rg7 Nc6 Be7 Qc4 Qg6 Qg8 Qe8 Rfd6 Nb8 Na5 Ne5 Rc6 Rb5 Rf6 Rc5 Nc6 Rc4 Qh8 Rcg4 Qh7 Rc2 Qg8 Rcc4 Rc1 Rce4 Rcd1 R4g6 Rc1 Rg1 Qh1 Nf4+ Kh2 Bh3 f1Q Bc8 Qfh3 Nbd7 Qhe6 Ng2 Ra1 Rc1 Rb1 Rc5 Re1 Ng4+ Kg1 Rc2 Q1h2 Rb2
1nBk4/4B3/2qN1PPR/1q2Q2p/1rq2RbB/1nrN2KR/1rR1rQ2/4R3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Kf2 a5 b4 h5 d4 e5 d6 c5 g7 a4 d5 a3 b6 a2 d7+ Ke7 b7 e4 d6+ Kf7 b5 f3 g6+ Kf6 b6 e3+ Kg3 f2 Ba3 c4 Qe1 c3 Nh3 c2 Nf4 c1Q Ba6 f1R Nd3 e2 Nc3 Rf4 Nb5 Re4 Rh3 Ne7 g8R Qd1 Qf2 Qf1 Re1 Qe8 d8B a1Q d7 Qd4 Nd6 Qc4 Bc5 Rh7 Rf8+ Rf7 Ba3 Qb5 Rh8 Rb4 Rh6 Rf8 Bc7 Rg8 d8R Nec6 Rd7 Nd4 Bd8+ Qe7 Rc7 Nb3 Rc6 Qh1 Rc2 Qhc6 Bc7 Qf7 Bd8+ Kg7 Bf6+ Kf8 Bh4 Qfc4 f6 Rg7 Bc1 Rc7 Ba3 Ra4 Bb4 Bg4 Bc5 Ra2 Bb4 Rb2 Ba3 Nd7 b8Q+ Rc8 Bb7 Ra4 Ba6 Rb4 b7 Q4e4 Qc7 Qec4 Qa5 Rc7 b8R+ Rc8 Rb7 Nb8 Re7 Rc7 Re4 Rc8 Rf4 Rc7 Ne4 Ke8 Nd6+ Kd7 Bc8+ Kd8 Rd1 e1R Ra1 Qba6 Qe5 Re2 Re1 Qab5 Nf5 Ra4 Bf8 Rb4 Nd6 Ra7 Rd2 Ra1 Rc2 Rc1 Rd2 Rc3 Rc2 Qf7 Qe4 Qe6 Qe5 Qec4 Be7+
2B1N3/qbN1rB1P/b4b1Q/k4bnK/3r3R/P2pNR2/QN1BqqN1/8 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 g4 c5 gxh5 b5 d4 b4 dxc5 Nc6 Qd4 Na7 Qd1 a4 b3 Nb5 cxb5 axb3 Ke2 d5 Kf3 Kd7 Kg4 Kc7 h4 g5 f4 e5 b6+ Kb7 a3 e4 c6+ Kb8 h6 d4 h7 b2 b7 Kc7 b8N Kb6 h5 e3 h6 b3 c7 e2 Nf3 e1Q Nc3 b1B Na4+ Ka5 Rh4 b2 Qe2 Ne7 Ne5 Be6 c8B Qb4 Na6 Qd7 Kh5 g4 f6 g3 f5 g2 f7 g1Q f6 Qb6 Nc7 Qe8 Ng4 Bbf5 Ne3 b1B Qa2 Qf2 Bc4 Nd5 Nb2 Nc3 Bd5 Qeb5 Ne8 Be7 f8N Bbd3 f7 Bf6 Ng6 Ra7 f8N Re7 Nf4 Ne4 Nfg2 Ng5 Rb1 Rg8 h8Q Qa7 h7 Bd7 Ne6 Bc6 Qg7 Bb7 Qh6 Bf1 N6c7 Qbe2+ Ng4 Rgg7 Bf7 Re4 Bd5 Rge7 Bf7 Qd2 N4e3 Bfa6 Nbd1 Rg4 Rb3 Qde2 Nb2 Rf4+ Ng4 Rfe4 Rf3 d3 N4e3 Rd4 Bd2+
RqnN1QQ1/Nrk3qP/B4Q2/R1b4q/pb5b/6n1/P1b2B1N/1NK3N1 b - - 0 1 legal: proof: e4 b5 g4 f5 exf5 a5 c4 d5 cxd5 c6 b4 Ra6 g5 Rb6 g6 c5 bxc5 hxg6 cxb6 g5 Qa4 g4 Qc2 Nd7 Qd1 Nb8 f4 Kd7 h4 e5 d4 g5 Kd2 a4 b7 e4 d6 g3 h5 g2 f6 g4 d5 g3 h6 b4 h7 b3 f7 b2 f5 Nc6 b8Q Qe7 f6 Qe8 Rh5 Qd8 Qf3 Nce7 Ba6 e3+ Kc2 e2 Be3 e1B Bf2 Qa5 Qc3 Bg7 f8Q Nf5 f7 Nge7 Qf6 Bb4 Qg8 Bh6 f8N+ Kd8 d7 Bg5 Qa8 Bh4 Ng6+ Kc7 d8N Be6 Nc6 Nc8 Nge5 Bf7 Bf1 Bg6 Nef3 Qb5 Na7 Qc5+ Nc3 b1Q+ Kd2 Qb3 Re1 Qa5 Kc1 Qb5 Nge2 g1B Nh2 g2 Nb1 Ng3 Qgf8 Bc2 d6+ Kd7 Rc5 Qf3 Rd1 Qb8 Ra5 Qh5 Re1 Rg8 Qd5 Rg5 Qdg8 Rb5 Rd1 Rb7 Rd4 Qe5 Re4 Qe8 Re7+ Kd8 d7 Kc7 Ree5 Qh5 d8N Kd7 Re8 Kc7 Be1 Bb6 Ng1 B6c5 Be2 Bd1 Bf2 Bc2 Ngf3 g1Q+ Bf1 Qg2 Ba6 Qh3 Ng1 Qd7 Qgf7 Qe7 Q7g8 Qg7 Qf3 Qa8 Ndc6 Nb6 Rb8 Nc8 Nd8 Qgf7 Qf6 Qg7 Nac6 Qa7 Ra8 Qb8 Na7
3N3Q/1qRrPq2/1n1P1b1n/p1qb3N/5B2/nNNk1RK1/1R4NQ/6Bq b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 f5 axb5 e5 fxe5 f4 Bh3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 Nc6 Bg4 hxg4 Ra3 Nb8 Ra4 Nf6 Ra1 Ng8 Kf2 Ke7 e4 c5 d4 g5 h4 f3 b4 c4 e6 Kf6 e7 c3 e8N+ Kf7 h5 c2 f6 Bg7 h6 Kg6 e5 Kf5 d6 Ke4 d7 Qb6 d8N Rh7 e6 Qd6 d5 Qe7 f7 Qf8 b6 Nc6 b7 Nce7 b8N Bb2 b5 Qg7 f8R Qg6 d6 Qf7 b6 Bb7 Ng7 Bd5 b7 Bf6 Nh3 Nc8 Kg3 f2 Nbc6 Nb6 Bf4 c1Q b8B Qc5 Qg1 Kd3 Ra2 f1Q Nd4 Qb7 Nh5 Rd7 h7 Nh6 h8Q Qf3+ Kh2 Qf1 e7 Qf3 Qg2 g3+ Kg1 g4 Qh2 g2 Ba7 Qa3 Rb2 Qc5 Be3 Qf5 Nc3 Qh7 Kf2 g1N Bg5 Qf7 Kg3 Nf3 Bf4 Nd2 Nb3 Nb1 Rc1 Na3 Nf2+ Kc4 Nfd1 Kd3 Ne3 Bd4 Kh4 g3 Kh3 g2 Kg3 g1Q+ Ng2 Qh1 Rcc2 Nc8 Bb6 Bf6 Ba7 Qcc6 Bg1 Qcc7 Na2 Qcb6 Rc7 Qc5 Nc3 Nb6 Qh7+ Qg6+ Bg5 Bg7 Qh8 Bd4 Rff2 Qf7 Bf4 Bf6 Rf3+
Nn1qn3/Q2p2rB/q1Q1r1Q1/2r5/NPQ2k2/PB3r2/b1B3RR/3n1Q1K b - - 0 1 legal: proof: c4 a5 e4 b5 h4 f5 exf5 g5 hxg5 c5 b3 a4 Bb2 a3 cxb5 axb2 d4 c4 Be2 Bg7 Bf1 Be5 Qd2 Bd6 Qd1 Bc5 dxc5 Qc7 Rh6 Qb6 Rh1 Qd8 f4 Kf7 Kf2 h5 g4 e5 Kg2 c3 b6 c2 f6 Kg6 a3 c1N c6 e4 c7 h4 f5+ Kh7 b7 e3 g6+ Kh6 b4 Kg5 g7 e2 f7 e1Q f8Q Qe3 f6 Na2 f7 Qe6 Qd4 Rh5 Nh3+ Kg6 g5 Kf5 g6 Qee7 Nf4 Qe6 Qc4 Qee8 Rh2 h3+ Kh1 Rh7 Bd3+ Kg5 Qd6 Qe6 f8Q Ra6 Nd5 Nf6 g8B Ne8 g7 Nc3 Nb6 Nd1 Nc3 b1R Nca4 Rb3 Bc2 Rf3 Na8 Ra5 Qb6 Rc5 Ra2 Qc6 Qa7 Qa6 Bf7 Rh6 g8B Rd6 Bgh7 Re6 Qd5+ Kg4 Qc6 Kf4 Rg2 h2 Qg8 Rg6 Bfb3 Rg7 Qg6 Nc6 b8Q Bb7 Qc8 Nb8 Qc4+ Be4 Qf1 Bd5 Qcb7 Be6 c8Q Bc4 Rg1 Be6 Qbc6 Bd5 Kg2 h1R Rb2 Rh3 Rh1 Rh5 Rh2 Re5 Kh1 Re4 Bd3 Re6 Rbg2 Bc4 Bf5 Bd3 Be4 Bb1 Bf5 Ba2 Bfc2 Qb5 Q8a6 Qbb6 Qae2 Qa6 Qc4+
b1Bq4/PQ4R1/1qqnr1QN/k1P2rN1/6p1/bR3BB1/b3bBBK/1Q6 b - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 gxh5 c5 dxc5 f5 b4 axb4 e4 Nc6 exf5 e4 Qd3 Ra5 Qd1 Ne5 fxe5 Ra8 Kf2 d5 Kg2 Kd7 h4 Kc6 c4 b5 a4 g5 f6 d4 e6 b3 f7 g4 e7 e3 e8B+ Bd7 h6 b4 h5 e2 h7 e1Q a5 d3 h6 d2 a6 b2 a7 b3 Ne2 Kc7 c6 Kb6 c5+ Kb5 c7 Qf6 c8B Qfh4 Nd4+ Kb4 Ra3 Qg5 Nc3 b1B Nf5 b2 Kh2 Ba2 Rb3+ Ka5 Ne4 b1Q Bg2 Qf6 Ng5 Bg7 f8Q Qee7 Qf7 Qd8 Qg6 Bc6 Qf1 d1B Bf4 Bd5 Bg3 Ne7 Bc6 Rf8 h8B Be2 h7 Rb8 Qg1 Rb6 Nh6 Nf5 Bf3 Qbb2 Qb1 Nd6 Bg2 Qe6 Re1 Bc3 Bd4 Bb4 h8Q Rf5 Bdf2 Ba3 Qhh7 Qed7 Ba8 Qc6 Qb7 Ra6 Bf3 Qbf6 Rd1 Qdb6 Bg2 Qfd8 Rdd3 Bdf3 Re3 Bd5 Re7 Qcd7 Ne6 Nf7 Ng5 Qbb5 Qb8 Re6 Qh1 Nd6 Qb1 Qbb6 Rg7 Qa4 Bc6 Qe4 Bb5 Ba8 Qb7 Qa4 Bbc6 Qab5 Bce4 Q5c6 Bef3
1k2Nr2/2r1Rn1K/B6p/Q2Pbn2/1R3NPQ/2bb2N1/Nr2N3/1rQ3Br b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 h4 Qd6 g3 Qf6 g4 Qg5 hxg5 Bh6 Ra2 Bg7 Ra1 Bf8 Ke2 Kd8 Kd3 a5 Ke4 e5 b4 c5 d4 Kc7 g6 h6 g7 a4 d6+ Kb7 d5 a3 b6 a2 f6 c4 d7 f3 Kf5 c3 Kg6 c2 d8Q e4 b5 e3 f7 e2 Be3 c1B Nd2 e1R Rb1 a1R Ne4 f2 Rb4 R8a3 Ng3 Be7 f8N R1a2 Ne6 Bc5 Nf4 Bd2 Qc1 Re2 Qh4 Re1 N1e2 Bd4 Rh3 Ka8 b7+ Ka7 Rh2 Nd7 b8N Rb2 Na6 Bc3 b6+ Kb7 Nc7 Be5 Ne8 Kb8 b7 Ra1 Bb6 Rh7 Rg2 Rab1 Bc5 Ngf6 g8Q Nh5 Qe6 Re7 Qb6 Ng7 Qa5 Nf5 Rg1 Rf7 Rh1 Rf8 Kh7 Rd1 Bh3 f1R Bg1 Rfe1 Bf1 Rd4 Rh2 Rc4 Rf2 Rc6 Rf3 Rc7 Re3 Bh8 Re7 Ne5 Nd4 Bf6 Ba6 Nf7 Nde2 Bfe5 Rd4 Ka7 b8N Ka8 Nc6 Rf1 Bc4+ Ba6 Nb4 Kb8 Na2 Re1 Bb5 Rd1 Rb4 Rf1 Bc6+ Bb5 Bb7 Bd3 Bf2 Rh1 Ba6+ Bb5 Bb6 Bd3 Bg1+
2Q1K2R/kN2RP1p/nb6/6Q1/1NqnB2n/1P1bB2R/3n1nRn/2BR3r b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 Kd7 Kf3 c5 Ke4 Kc7 Ke5 Kb7 d4 a4 g7 f3 b6 f2 g6 c4 f6 c3 f7 c2 d6 e6 d7 a3 b3 a2 d5 Qe8 d8R Qe7 d6 Nh6 g8Q Qe8 Kf6 e5 g7 e4 d7 e3 Nf3 e2 Rh3 e1N Bg2 f1N Nh4+ Nf3 Nc3 Bc5 Nd5 N1h2 Qd2 Qe1 Qg5 Nd2 Be4 Na6 Re8 Nf5 d8B Qe2 Re7+ Kb8 b7 Ka7 Bc7 Bb6 b8R Qc4 Bf4+ Bd7 Qc8 Rd8 Rb1 a1N g8R Re8 Be3 Rd8 Ree8 Bb5 Nb4 Rd5 Re7+ Rd7 Ng6 Nh4 Ne5 Rc7 Nd7 Rc6+ Kg7 Rh6 Kf8 Rh5 Ba3 c1N Ke8 Nd3 Rd1 Nf2 Bc1 Nc2 Rh8 Nd4 Rg8 Qf1 Rh8 Bd3 Nc5+ Bc7 Nb7 Bb6 Qd8 Qe2 Rc8 Qg4 Rc2 Qe6 Qc8 Qc4 Qgg4 Rg5 Qf4 Rg1 Qg5 Rh1 Qe5 Nfg4 Re6 Nd2f3 Rg2 Nf2 Qg5 Nd2 Re7
1r1B2qQ/2Q2qP1/3rp1qn/KP6/2Qn1BB1/1q3N1B/k2r1B2/N1RRq3 b - - 0 1 legal: proof: d4 g5 c4 b5 h4 gxh4 f4 d5 e4 b4 g4 b3 axb3 Bf5 b4 Bh6 b5 Bg5 fxg5 Qc8 cxd5 Kd7 d6 Be6 Ra6 Ke8 Ra1 Bd5 exd5 Qd8 Kd2 Kd7 Kc3 a5 b4 h5 g6 f5 g5 c5 g7 c4 g6 h3 b6 e6 b5 f4 b7 f3 Qe2 h4 Ra2 f2 Bb2 a4 Kb4 h2 Qe4 a3 Bg2 f1Q Ra1 h3 Nf3 c3 Nbd2 c2 Nb3 a2 Rd1 c1Q Na1 Nh6 g8B Ra6 g7 Qb1 Bh7 Qg8 Bf5 Rb6 Bg4 Nc6+ Ka4 Qfd3 Rhe1 h1R b8B h2 B2h3 Qf1 Qe2 Qg6 Qc4 Rg1 Rc1 h1Q Red1 Rg2 Ba3 Qfd3 Bc5 Qe1 Bc7 Rd2 Bb8 Ne7 Ka5 Qb3 Bc7 Nef5 Bb8 Kd8 d7 Rd6 Bca7 Ke7 d8Q+ Kf7 Qdc8 Kf6 Qd7 Q8f7 Bc7 Ra8 Qe8 Rb8 Qh8 Rdb6 d6 Qg8 d5 Nd4 d7 Rd6 Nh2 Ke5 d8Q Qf2 Qc8 Qff7 Nf3+ Ke4 Bd8 Ke3 Bg5+ Ke4 Q4c7 Kd3 Bf4 Qd8 Bc5 Qdg8 Nc2 Kc3 Na1+ Kb2 Ba7 Rc6 d6 Rcb6 d7 Rd6 d8B Ka3 Q8b7 Kb2 Qd5 Ka3 Nc2+ Kb2 Qdc4 a1Q+ Na3 Ka2 Nc2 Qb1 Na1 Qbe4 Bc5 Qe1 Bb6 Ndf5 Bbe3 Nd4 Bf2
4K1B1/6p1/NQ5k/6BP/nB1qbBnR/bnPn1Rn1/4qb1B/1R1Q1N2 b - - 0 1 illegal: No possible last move, all moves rejected
4NR1r/PQ3Q1Q/2rp4/n1BB2Q1/2rR3N/1R1qqQnr/K1kP3n/7q b - - 0 1 legal: proof: c4 a5 f4 f5 e4 b5 exf5 Nh6 g3 Ng8 f6 Ra7 cxb5 Ra8 b4 axb4 f5 g5 Kf2 g4 Ke2 Bh6 Ke1 Bf4 gxf4 g3 h3 Bb7 Ke2 Bf3+ Ke1 Bg4 hxg4 Ra6 Nf3 Ra5 Ng1 Ra8 a4 Kf7 a5 h5 g5 e5 a6 c5 a7 c4 b6 h4 g6+ Kf8 f7 Ke7 f8R Kd6 g7 Kc5 f6 Kd4 b7 e4 f5 e3 f7 h3 f6 c3 Qh5 c2 Qh7 e2 Nc3 b3 Nd5 h2 Ba3 b2 Nc7 g2 Rb1 Ne7 g8Q Nf5 Qg5 Kd3 Nf3 g1N Ne8 Nc6 b8Q Na5 Qb7 Rc8 Bc5 Rc6 Bg2 d6 Nh4 Qb6 Bd5 c1R+ Kf2 Rc4 Ke1 Nh3 Rf1 Ng1 Rf4 h1Q Rd4+ Kc2 Ra1 Qh3 Ra3 Qh1 Rb3 Qa6 Rg8 Qb5 f8Q Qb6 Qff7 Nf3+ Kf2 e1R Rf8 Rd1 Ke2 b1Q Qa8 Kc1 Qab7 Ng3+ Ke3 Rc2 Kd3 Nh2 Qfg8 Rf1 f7 Rf6 Q8g7 Rh6 Q7f6 Rh5 Qf3 Rh6 Ng2 Rh3 Nh4 Ra2+ Kc3 Ra4 Rg8 Qe4 f8Q Qb5 Q8f7 Qe3+ Qd3 Qa6 Rf8 Qb5 Q3f4 Kd1 Kb2 Rc4 Ka2 Qa6 Qdh7 Qb5 Rbd3 Kc2 Qf3 Qbb1+ Ka3 Qbf1 Rb3+ Qfd3 Ka2
KNNQ1N1r/nP6/R2nqR1r/1P3N1k/r6n/1NQ1pBr1/3n4/1Q1qB3 b - - 0 1 legal: proof: f4 b5 e4 f5 a4 d5 axb5 g5 c4 fxe4 h3 Bg7 cxd5 Bg4 g3 Be5 f5 Bf4 gxf4 Bf3 Be2 g4 Bd3 g3 Bf1 Bg4 hxg4 Qd6 Qe2 Qd7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kc5 a5 b4 c6 d4 e3 g5 e4 d6 e2 f6 Kg6 b6 e1N d7 g2 d5 e3 b5 a4 d6 a3 b7 h4 f7 a2 f8Q h3 f5+ Kh7 f6 Kg6 f7 h2 Bd2 Qc7 d8Q Ra6 d7 Rh6 Ne2 g1Q Bg2 Ra4 Ng3 Qe5+ Kb6 c5 Bf3 c4 Qa3 c3 Nf5 c2 Qc3 Ng2 Be1 c1R Nd2 Ne7 Nb3 Nbc6 Qdc2 Qf1 Qb1 Na7 Rg1 Qd3 Rf1 h1R Rf2 Nh4 f8N+ Kf7+ g6+ Kf6 g7 Kg5+ Bc6 Kh5 g8N Qe6 Kc7 Qd2 Kb8 Qd1 Ka8 Nec8 Nge7 Nd6 Nc8 Rc2 Rf4 Rg2 Bf3+ Rg4 Qb6 Rh2 d8N Rh3 Nc6 Rg3 Bh1 Rg8 Nb8 Rgh8 Qd8 Rf3 Nd2 Re4 Nd4 Rg3 Rf6 Rf4 Nf5 Rc4 Qbb4 Rd4 Bf3+ Rdg4 Rb1 a1N Qe4 Nb3 Ra1 Qe7 Ra6 Qe6 Nc4 Nd2 Na5 Qa4 Qb1 Qd1 Be4 Rf4 Nb3 Rfg4 Bc6 Ra4 Bf3+
rr6/Bn1n1QKn/R2p1N2/1p1RqQ2/N2Qb3/4Q1b1/3bPP2/1kNB1Q2 b - - 0 1 legal: proof: g4 f5 b4 a5 d4 axb4 Bg5 h5 gxh5 Kf7 Bxe7 c5 dxc5 Ke6 Qc1 Kd5 Qf4 Kc6 Qxf5 Qc7 Qf7 Qd8 Kd2 Kb5 Kd3 Ka4 Ke4 b5 Ke5 g5 c4 g4 h4 g3 h6 b3 c6 g2 c7 b2 h5 Ra6 h7 Bh6 c5 Rg6 c6 Bg5 h6 Be3 Nh3 g1B Ng5 Nf6 Bg2 Qg8 Nc3+ Ka5 a4 b1N Rh5 Ne4 Na2 Nec3 Be4 Bb6 Nc1 Nd1 Bc2 Na3 Ne4 Rg5+ Kf6 Qf8 Bc5 Ne3 Bd1 Rgg8 Rd5 Bb7 c8Q d6 c7 Bh2 Qe6 Qe8 c8Q Nac4 Ra2 Bc7 Ba7 Kb4 a5 Bg3 a6 Ba5 Qcd7 Rf8 Kg7 Ng4 Nf6 Kc3 Ra3+ Kb2 Qe3 Qe5 Qf5 Re8 Ra4 Rhf8 h8Q Bd2 h7 Na5 Qhg8 Ba8 h8Q Nd7 Qh1 Rb8 Qf1 Nb7 Qh8 Nh2 Qh4 Nf3 Qc4 Ng5 Qcd4+ Bc3 Bb6 Nh7 a7 Qe4 Bc5 Kb1 Ra6 Bd2 Bb6 Na5 Bc5 Bc6 a8N Nb7 Nb6 Rfe8 Nd3 Qe5 Na4 Ra8 Ba7 Reb8 Rc5 Bh1 Nc1+ Be4 Rd5
K5nQ/3B1b2/1q2N1Rr/1Q3q1Q/1bkP4/npB2B2/pRr3PB/n5NB b - - 0 1 illegal: Other
4r1B1/R1q1nQ2/qP6/3PnQRb/2B3Q1/rNp1KnBk/5Qp1/1NQ4b b - - 0 1 illegal: No possible last move, all moves rejected
1b3n2/1B1b1R1q/1P1PQ3/1rQpk1K1/1BqNrR1p/1n4Q1/1N2Q3/3N2Qq b - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 gxh4 e4 f5 exf5 b5 a4 d5 c4 Qb6 c6 Kf7 axb5 Qc7 c5 Qd6 cxd6 Ke8 Kd2 Kf7 Ke3 Kf6 Kf4 a5 b4 h5 g4 e6 g5+ Kg7 g6 Kf6 g7 h3 c7 h4 b6 a4 b5 a3 b7 h2 b6 a2 Bd2 Nh6 g8Q Nd7 b8Q Rh7 Nh3 Bb7 c8Q Nf7 Qbc7 Rh5 Qc5 Rh8 Qg3 Nd8 Na3 Nc6 Ba6 Nd4 Nc4 Be7 Bb4 Nb3 Rf1 h1Q Nb2 Nf8 Qe2 Bc6 Bb7 Ra5 f3 Bd7 Nf2 Rh5 Nfd1 e5+ Kg4 e4 f4 e3 Qe8 Bd8 Qe6+ Kg7 f6+ Kg6 Rc1 a1Q Rc4 Rb5 f7+ Kg7 f5 Qb1 Rd4 Bc7 Rdf4 Bb8 f6+ Kg6 Qg1 Re5 Qg3 Re4 Rf3 Nh7 f8Q Qf1 Qd8 Nf8 f7+ Kg7 Kg5 Qd3 Qeg2 e2 Qgg1 e1Q Qde8 Qc2 Rf2 Qfc4 Q8e7 Rd4 Qe2 Qh7 Q7e6 Re4 Q1h2 Ng6 f8N Qh1 Qhg1 Bc8 Nd7 Nf8 Ne5 Bd7 Nc6 Qh2 Qeh3 Qg2 Nd4 Qh1 Nf5+ Kf7 Rf1 Ke6 Nd4+ Ke5 R1f3 Re3 Rf7+ Ke4 R3f4+ Ke5 Qhg4 Re4 Qe6+
8/NNqPBKBQ/r1Pb4/q1R5/pn2R3/1pR5/2RknRn1/Qr3B1b b - - 0 1 legal: proof: g4 f5 a4 d5 e4 h5 exf5 c5 gxh5 b5 Ra3 d4 Rd3 Qd7 axb5 Qd8 b4 cxb4 Rxd4 Qc7 Rd7 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 a5 Ke6 Kf4 d4+ Ke4 c4 g5 f4 b3 h4 g4 b6 a4 c5 g3 f6 g2 b7 Rh6 d5 Bg7 f5 Qb6+ c6 Qa6 d6 Qa5 Kf7 e5 Ba3 Ke3 Nd2 e4 Re7 Qc3 d7 Ra5 Qa1 Rh7 h6 Qd3 h5 Qe2 Ngf3 g1N Nc4+ Kd3 Nd4 e3 Nd6 Ra6 Re4 Rb6 N4b5 Rh8 h7 Na6 b8R Kd2 h6 Qh2 Nb7 e2 Be7 e1Q Na7 Qc7 Rh3 Nb4 Rc3 Bf8 Bc4 Bg7 Nd6 Nd5 Rg3 Ba6 Kg6 Bc8 f7 Bd4 f8B Kc2 f6 Bc5 f7 Ba6 Bg7 Ne3 f8R Nf6 Rb7 Nfd5 Rf2+ Qd2 Kf7 Ba3 Be2 Qa5 Rgf3 Kd2 Rh3 Nc2 Rc3 Bb5 Rb8 Ra6 Rb6 Ne1 Nb7 Bc1 Bgf8 Rg8 h8Q Ba3 h7 Bd6 Qg7 Nb4 h8R Ngf3 Qg6 Nd4 Rh1 Rh8 Rhf1 Rh1 Bg7 Rg1 Qh7 Rh1 Bh5+ Be2 Rb5 Rg1 Rbc5 Rh1 Rff5 Bf3 Rf6 Bg2 Be2 Rg1 R6f4 Bh1 R4f2 Ng2 Rb1 Rc1 Bf1+ Ne2 Qh4 Rc2 Qh7 Rb2 Rbc1 Rb1 R1c2+
bN2RBR1/p2PBr1p/bRr3q1/6Q1/2P1NN2/1nR3r1/4K1nk/Qq2R3 b - - 0 1 legal: proof: h4 b5 d4 f5 a4 c5 axb5 d5 dxc5 g5 hxg5 d4 e3 Bg7 Bd3 Be5 Be4 fxe4 Ke2 d3+ Ke1 Bd4 exd4 Qd6 Rh6 Qc7 Rh1 Qd8 g4 Kd7 b4 Ke6 c4 d2+ Ke2 e3 f4 Qd7 g6 Qe8 f5+ Kf6 d5 Ke5 b6 Kf4 b7 Kg3 f6 e5 c6 e4 g5 Qf8 g7 Ne7 g8Q Qg7 b5 Na6 b8N Be6 d6 Nf5 g6 Bc8 d7 Nc5 b6 Ba6 f7 Nb3 f8B Nh4 b7 Ng2 c7 Qh6 g7 Qg6 Qd5 Rg8 Be7 Rf8 Nh3 Rf7 Re1 Kh2 c8R Qf6 g8R Qg6 Nc6 Rb8 Rcf8 Rc8 Nb8 Rc7 Nf4 Rc6 Kf1 e2+ Kf2 Rg7 Bca3 Rf7 Qg5 e3+ Kf3 Nc5 Qc1 d1B Re8 Nb3 Nc3 Bc2 Qb2 Bd3 Rec1 e1Q Ne4 e2 Rc3 Qb1 Bf8 e1R Bae7 Rc1 Kf2 Bc2 Ke2 Rg1 Qa2 Qb2 Re1 Qb1 Ng3 Be4 Qa1 Bd5 Ne4 Nh4 Rd3 Rg3 Rf3 Ng2 Rc3 Rc7 Nc6 Rc8 b8R Rc7 Rb6 Rc8 Nd8 Ba8 Nc6 Rc7 Nb8 Rc8 Qc5 Rc6 Qg5
kB2Rqn1/q3b1B1/B7/1N2P3/1n1n1rpr/RRqP2Q1/4N1p1/1K2BBQ1 b - - 0 1 legal: proof: c4 b5 g4 g5 f4 e5 fxe5 d5 cxd5 f6 a4 Nd7 axb5 Nb8 h4 Bf5 h5 Bg6 hxg6 f5 Ra3 fxg4 Ra2 Ba3 Ra1 Bf8 b4 Kd7 e4 Kc8 b6 Kb7 d6 h5 b5 c5 d7 a5 e6 a4 g7 a3 d3 c4 Kd2 a2 Kc2 c3 e7 h4 e8R g3 Bb2 g4 Na3 g2 Ne2 Qc7 d8B h3 Bh4 h2 Be1 Ra4 Qb1 Ka8 b7+ Ka7 Rg1 Nc6 b8B+ Ka8 b6 h1Q Nb5 Nd4+ Kc1 c2 Bbc3 Nh6 g8B Be7 Bc4 Ng8 Kb2 Qh6 Qc1 Ne6 Bg7 Nd4 Qe3 c1N e5 Kb7 Qg3 Ka8 Rb1 Qf6 Ka1 Qa7 Rb3 Qf8 Ra3 Ndb3+ Kb2 a1Q+ Kc2 Qc3+ Kb1 Nd4 Rb3 Kb7 Ra3 Ka6 b7 Na2 Rh1 Nb4 Rb3 Kb6 Rh6+ Kc5 Ra6 Rh4 Ra5 Ra2 Raa3 Kc6 Nd6 Rd2 Ba6 Ra2 Nb5 Rd2 Nf4 Rf2 Ne2 Rf4 Bd6 Rh6 b8Q Rh8 Qa8+ Kb6 Qe4 Rh4 Qee3 Kc6 Qg1 Kb6 Bb8 Kc6 Bc8 Kb6 Be6 Kb7 Bc8+ Ka8 Ba6
NBQ1k1KN/r3N2n/2qn1R1Q/1p3PNP/5qp1/8/N2R1Rb1/3r1Brn b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 h5 c4 d5 cxd5 a6 g4 e6 gxh5 Bc5 a4 Be3 a5 Bb6 axb6 a5 Qb3 axb4 Qa4 Bd7 Qd1 Bc8 Ke2 c5 Kd3 g5 Ke4 c4 Ke5 g4 h4 c3 f4 c2 d4 b3 d6 b2 b7 Qc7 f6 Qg7 f5 Qf7 h6 Rh7 d5 Kf8 d7 Na6 d8N Qd7 b8Q Qc6 h5 Qe8 f7 Rh8 d6 Ra7 h7 Qc6 d7 Ne7 Kf6 e5+ Qdd6 e4 Nf3 e3 Nc3 b1R Ng5 e2 Na2 e1Q Rh2 Nc7 Rf2 Ne6 Bf4 Bb7 Qc8 c1N Bh2 Rg8 h8N Qe3 Qd2 Nd3 Bb8 Re1 Rd1 Qf4 Qe3 Ba8 Rdd2 Rd1 Be2 Rg1 Bf1 Ng7+ Qe6 Nd5+ Kg6 Ne8+ Kh7 Nd6 Qh6+ Ke7 Nde6 Rd8 f8R Nf6+ Kg7 Bb7 Nc7 Nh7 Rf6 Ba8 Rg2 Bb7 Na8 Nf2 Rh2 Nh1 Rhf2 Rf8 d8N Ke8 Nb4 Rf7+ Kg8 Re7 Na2 Re1 Bd3 Rd1 Bc4 Qc7 Bf1 Bg2 Nc6+ Qd8 Qc7 Qd7 Ne7 Qc6 Qc8+
3q1rR1/q1Nq1Q1b/1n1QQR2/p7/NkNB4/4PpKQ/2n4P/2nb2QB b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 d5 axb5 h5 gxh5 d3 Qe2 d4 Qd2 Ba6 Qd1 Bc8 Be2 e5 Bf4 a5 Bd2 Be7 Qc1 Bg5 Qd1 Be3 Bf1 Ra6 Bc1 Rd6 Qg4 Rd5 exd5 e4 Qf3 Bh6 Qd1 e3 Nf3 e2 Ng1 Be3 fxe3 Qg5 Kd2 Qd8 Ke1 Kd7 Kf2 Kd6 c4 Kc5 b4+ Kd6 b6 e1N b5 Kc5 b7 g5 h6 f5 d6 d2 d7 g4 h7 f4 b6 d3 Ne2 Qf6 d8Q Qc6 Bb2 Qe6 Qc7+ Qc6 Bg2 Bf5 Rf1 Na6 b8N Nh6 b7 Rd8 h8Q Bh7 Nec3 Rf8 Na3 Nf7 Na4+ Kb4 c5 Ne5 Bd4 Nc4 Bh1 Nb6 Nc4 Nc2 Qf7 Qd7 c6 Nc5 c7 Nb3 c8Q g3+ Kg2 Qd8 Qce6 Nc1 Qdg4 d1Q Na6+ Kb5 b8Q d2 Nc7+ Kb4 Kh3 g2 Qhg8 g1Q Qgf5 Qf2 Qg1 Qfh4+ Kg2 Qd7 Qh3 Qhe7 Rf3 Qc5 Rg3 Qd8 Rg8 f3+ Kg3 Qce7 Rg6 Qed7 Rh6 Qf1 Rf6 d1B Ra2 Na1 Rg2 Nc2 Kh4 Qd3 Rg8 Qf5 Kg3 Qc5 Nb5 Qce7 Qbe5 Qa7 Nc7 Qed7 Q5d6+
2bQr3/B6R/2K3nP/1N4B1/N1Pb1p1p/q2n1kR1/3QqB2/QQ1n2Qb b - - 0 1 illegal: No proof kernel
K2b1Rr1/N7/Q3Qp2/P2N1R1r/b4N1R/1BNNb3/Pqpq4/Bk1rn3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 a4 cxd5 a3 f5 Ra6 f6 exf6 bxa3 Ra5 a4 Ra7 a5 Ra8 g5 Na6 h3 Kd7 h4 Nc5 g6 Ne4 gxf7 g5 Nh3 g4 Ng1 Ng5 hxg5 Bd6 Nf3 Ba3 Ng1 Bf8 Kf2 Kd6 Ke3 Ke5 d4+ Kf5 d6 b5 d5 c5 d7 h5 g6 h4 g7 h3 d6 b4 Nc3 h2 Nf3 b3 Ne5 b2 Nd3 b1Q Bb2 c4 Kd4 g3 Kd5 g2 Kc6 g1B e4+ Kg5 e5 Kf5 e6 Nh6 g8N Be3 e7 Ba6 e8Q Be7 f8R Qc2 Qe2 Bb5+ Kb7 Nf7 Rb1 Qd2 Ba1 Ba4 Rb5+ Ne5 Bg2 Rh7 Bd5 Qb2 Qf7 Nf3 Qe6+ Kg6 Qf1 Rh5 Qe2 Ne1 Qf1 Qe8 d8N Kg5 Nc6 Bd8 Na7 Qd7+ Ka6 Rb8 Ne7 Rc8 Nd1 c3 Bb3+ Bc5 Qfe2 c2 Nd5 Be3 N1c3 Ra8 Rb4 Rb8 Rf1 h1R Rf3 Ng2 Rf2 Rd1 Rh4 Ne1 Qf1 Qh7 d7 Qh6 Rhh2 Ra8 Rf5+ Kg4 Kb7 Qf4 Nf2+ Kf3 Rh4 Rc8 Qfa6 Ra8 Ncb5 Ke2 Nd3 Kd2 Nbc3 Bc7 Rf7 Rg8 d8N Bcb6 Rf8 Qd4 Ndc6 Bd8 N3f4 Kc1 Ne5 Qd3 Ka8 Qd2 Ne4 Kb1 Ned3 Rgg5 N5b4 Rg3 Nbd5 Rg8 Nec3+
KB1n2NR/3r1N1r/kNQPqBbR/1r3Pb1/3QqB2/3p4/5p1N/2b2N2 b - - 0 1 illegal: No proof kernel
R3KN2/1r4R1/pP1q4/5pB1/1RP2rb1/b1BQ1Q2/kn1RbRNq/6Br b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 d4 Nc6 dxc5 Nf6 g5 Ne7 gxf6 Ng8 Bh3 Rh6 Bg4 hxg4 Kf2 Rh4 Ke1 Rh8 Kd2 Kf7 Ke3 Ke6 Kd4 g5 c4 d5 e4 g3 b4 g2 h4 a6 c6 g4 h5 g3 h6 Rb8 c7 Qd6 h7 Qe7 b6 Qf7 b7 Qg6 f7 Bg7 Kc5 d4 Kc6 d3 f8B d2 b5 Bf6 Nf3 g1Q Nh4 g2 Ra2 Qa7 Rg1 Qg7 Bc5 Qf8 Ng6 Bg7 Na3 Qe7 Nc2 Qf7 Ne3 Qf8 Qf3 d1B Rd2 Be2 Rf1 g1R Rf2 Qe7 Ng2 Rf1 Nf8+ Kf7 e6+ Kf6 Qd3 Ke5 Qf3 Qh4 e7 Nf6 e8R+ Be6 c8Q Nh5 Qd8 Qh2 Qd7 Nf4 Re7 Nd3 Rf7 Nb2 Qdd3 Bf6 Rg7 Bf7 Kd7 Qb6 Be3 Bd8 Bc5 Bd5 Ke8 Qd6 Ba7 Rh1 Bb6 Rg8 h8B Be7+ Bd8 Rc8 b8R Rc7 Ra8 Rb7 Bb6 Qf6 Be3 Ba3 b6 Kd6 e5+ Kc6 Bd4 Qd6 e6 Be4 Bc3 Kc5 Bd4+ Kb4 e7 Nd1 Rb2+ Ka4 Rb1 Nb2 Bg5 Bd5 Bc3 Kb3 Bd4+ Ka2 Bde3 Na4 Rb4 Nb2 Bc5 Bd1 Rd2 Be2 Bg1 Be4 Rh7 Rg6 Bc3 Rh6 Rf7 Rh4 Rg7 Rf4 Kf7 Rb8 e8R Rb7+ Re7 Bc6 Rd7 Ba4 Ke8 Bad1 Rc2 Bf1 Rf2 Bfe2 Qfe3 Bg4 Qf3 Be2 Qde3 Qc7 Rd2 Qd6 Qd3
n1Bn2n1/1P1NB3/2QBB3/2p2kP1/qB5R/RNb3rq/Q1b1Kp2/Q5q1 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 g5 h3 Ra6 h4 Rg6 gxf5 exf4 Bg2 g4 Bf1 Rg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 b4 Kf7 d4 c5 e4 h5 b6 g3 e5 f3 d6 g2 d7 f2+ Ke2 a4 b5 a3 f6 Ke6 f7 a2 d5+ Kf5 b7 h4 e6 h3 d6 h2 e7 Ke4 e8B Nf6 b6 Qe7 d8B Qc7 d7 Rh5 Nf3 g1Q Be7 Qf4 d8Q Bd7 Nbd2+ Kf5 Nb3 Qa4 Qc8 Na6 b8B Rh4 b7 Ng8 Bd2 Rg4 Qc6 Nc7 Bh3 Na8 Bbd6 Bg7 Bb4 Bc3 Ne5 Be6 f8Q+ Bf7 Qg7 Bg6 Bf7 Bh7 Rc1 a1N Nd7 Nc2 Ra1 Bg6 Qd2 Nd4+ Kd3 Bh7 Ra3 Ne6 Ke2 Nd8 Qa2 Bg6 Bf1 Rg3 Qd4 Qg2 Qd1 Qh3 Qda1 Kg4 Bg2 Bc2 Bf3+ Kf5 Be6+ Kg6 Rd1 h1Q Rd4 Q1g2 Rh4 Qg1 Bfg4 Qb1 Nf6 Qg1 Bc8 Bd4 Nd7 Bc3 Bh5+ Kf5 Bf7 Qb1 Bc4 Qg1 Be6+
n1R1K3/p3b3/q1N5/3N1nPk/r1Q1Q1Bb/2p2RRb/RRPQB1n1/7q b - - 0 1 illegal: No possible last move
QnnQ4/1Rr3bb/2RN2k1/2n1B1n1/2p1p1q1/1n2NQ1P/1R3K1P/QB5Q b - - 0 1 legal: proof: c4 b5 e4 h5 a4 d5 axb5 f5 Qg4 hxg4 exf5 a5 cxd5 Ra6 Be2 Rh3 gxh3 Rh6 Bf1 Rh8 f4 Kf7 d4 g5 b4 c5 f6 e5 f5 a4 b6 e4 b5 g3 b7 g2 b6 g4 d6 a3 d5 c4 d7 a2 d6 g3 Ne2 g1N Nd4 g2 Bd3 Ne7 Na3 Na6 b8Q Ng6 b7 Qb6 d8Q Qb3 d7 Bh6 Bb1 Nf3+ Kf2 g1N Nac2 Ne1 Qa5 Ne2 d8Q Qa4 Ne3 Re8 Qa8 Ng1 b8R Rf8 Nb5 Ne7 Rb7 Bg7 Bb2 Qd1 Be5 Nb8 Qa4 Ngf3 Nd6+ Kg8 f7+ Kh7 f6 Bf5 Rg1 Ng5 Rg2 Kg6 Q4a5 Rg8 f8Q Nc8 f7 Qg4 Q5a7 Rh8 Qg8 Rh7 f8Q Ngf3 Qd5 Ng5 Qd1 Nd3+ Kg1 Qh5 Rgb2 Nc5 Kf2 Qg4 Qh1 Bh8 Kf1 Rc7 Kf2 Bg7 Qa3 Be6 Qff3 Bg8 Bd3 Bh7 Rf1 a1N Bb1 Nc2 Qa1 Nd4 Rd1 Ndb3 Rd5 Ncd7 Ra5 Ndc5 Ra6 Qe6 Rab6 Qg4 Rc6
b6b/2P4B/3b1N2/r1NBb3/R1Kppr2/N1Q1PNR1/1QR1kN2/n3b1q1 b - - 0 1 legal: proof: g4 f5 gxf5 a5 a4 c5 d4 b5 axb5 h6 dxc5 a4 b4 Nc6 Bg5 Na5 bxa5 hxg5 Kd2 Kf7 Kd3 Kf6 h4 Ke5 f4+ Kd5 f6 e5 c4+ Ke6 b6 Kf5 f7 Kg4 c6 d5 b7 d4 b8Q a3 h5 a2 e3+ Kg3 c5 Kf2 h6 g4 f5 g5 c7 g3 c6 g2 h7 g4 a6 g3 f6 Be7 f8N Bf5+ Kc4 Bc5 c8R Qe8 f7 Qe7 a7 Bd6 Qc1 Qg5 Nf3 g1B Ne6 g2 f8N Be4 Bd3 Ne7 Rh3 Bh2 Nfd2 g1B Nc5 Nd5 Qbb2 Nb4 Rg3 Nc2 Nfd7 Rf8 h8N Rf4 Ng6 Bf3 Bf5 Ke2 Na3 Bf2 Nf6 Be1 Rh3 Qg1 Rg3 Bf8 Qc3 Bg7 Q1b2 Bh8 Rc7 Rd8 a8B Rd5 Nde4 Bg2 Nh4 Bh1 Nf3 Bg2 Na6 Ra5 Nf2 Bh1 Bh7 Bg2 Rd1 a1B Nd2 Be4 Nc5 Bf3 Qb7 Bb2 Ra1 Bg2 Ra2 Na1 Rc8 Bc1 Qbb2 Bh1 c7 Bc6 Rb8 e4 Rb4 Bb7 Ra4 Bc6 Qbb3 Bb7 Rc2 Bc6 Nab1 Ba3 Qbb2 Bb4 Na3 Bb7 Na6 Bd6 Nc5 Bc6 Bb7 Be5 Ba6 Ba8 Bb7 Bd6 Bd5 Rf5 Rg7 Bhe5 Rg3 Rf4 Nf3+
4q1R1/1r1N4/1NrP4/1p3pRQ/Q2P4/QrQ2nrB/n1KnQ3/b3B1kB b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 f4 axb4 fxe5 Bc5 Nc3 Be7 Nb1 Bf8 a4 h5 g4 b6 gxh5 Bb7 a5 Be7 a6 Bd6 axb7 Bf8 h4 Kd7 e4 c5 h6 f5 d6 Ke6 h7 g5 h5 b3 h6 b2 Bh3 b5 Nf3 c4 Qa4 g4 Kd1 g3 Rg1 g2 Na3 b1R Kc2 c3 Nc4 Bg7 Nb6 Na6 b8Q Bf8 Qa7 Rb3 d4 Rb8 Bd2 Nf6 Be1 Rg8 h8Q Rb7 h7 Bh6 Qg7 Qe7 h8Q Bd2 Qh5 Qe8 Qc7 Rg3 Qc5 Bc1 Qaa3 Bb2 Rc1 Nb8 Q7a4 Na6 Kd1 Qg6 Q4b4 Rg5 Rc2 Rg4 Qba4 Ba1 Re2 c2+ Kc1 Kf7 e6+ Kg7 e7 Nb4 e8B Na2+ Kd2 c1R e5 Rcc3 e6 Ne4+ Kd1 Kf6 e7 Nd2 Bc6 Qf7 e8Q Rg8 Rf1 g1N Ne5 Qe6 Bh1 Ngf3 Qcb4 Rc6 Qc3 Rg4 Rg2 Qg8 Qd7 Qe8 Rfg1 Rg5 Kc2 Rg4 Qhh7 Kg5 Qde7+ Kf4 Ned7 Rg7 Qe2 Rg6 Rf2 Rg2 Qf7 Kg3 Qh5 Kh2 Rff1 Rf2 Rg3 Rg2 Rf2 Kg1 Rg8 Ne5 Rf4 Rg3 Rfg4 Nef3 R4g5
Q1q1q2k/1qN4b/1r2Q2P/1Q2R1Np/pb3R1n/3P3K/3BNq1Q/4nQB1 b - - 0 1 illegal: No proof kernel
q3N3/Bn2KB2/7p/1b1R4/rp1PPN2/Bq5n/RQBr1Q1R/Brk1r3 b - - 0 1 illegal: No possible last move, all moves rejected
Q2Q1k1b/1n3b2/2R1p1q1/N1NPP2N/K1R1qB2/2NpnN1q/6rq/3B3R b - - 0 1 illegal: No possible last move, all moves rejected
2R3qr/QB1nRQ2/K1P1qqQ1/2QN2p1/1P4B1/p5n1/1Nqb1Rk1/r2Q4 b - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h6 f5 Bb7 g5 Bd5 g6 Bf7 Bg5 hxg5 Bg2 Qc7 gxf7+ Kd8 Bf1 Qc8 Qd3 Kc7 Qd1 Qd8 Kd2 a5 Kd3 d5 h4 e5 b4 a4 c4 g4 h5 g5 c6 Kd6 b6 a3 h6 g3 h7 d4 c5+ Kd5 c7 g2 c8B Qe7 c6 Ra7 b7 Qd8 Be2 Nd7 b8Q Qa5 Nd2 Be7 f8R Bd6 f7 Qd8 f6 Nh6 Nh3 g1Q Bb7 Nf5 Bg4 Qf2 Rh2 Ng3 Nc4 Qf4 Nb2 e4+ Kc2 e3 Kb3 Ke4 Kc4 d3 Kb5 e2 Rf2 Ra8 Qa7 e1Q Ka6 d2 Rc1 Qb8 Rc8 Bc5 f8Q Be3 f7 Qf6 Qc5 Rd8 Qb3 d1Q h8Q Qc2 f8Q Bd2 Qff7 Re8 Nf4 Re5 Rc7 Qg8 Nd5 Rf8 Rc8 Rf5 Rg2 Rf1 Qh6 Qe3 Ra1 Rd1 Ra2 Ra1 Re2 Rd8 Bh3 Kf3 Qhg6 Rf8 Qa4 Qeb3 Re7 Qe3 Bg4+ Kg2 Qb3 Qee6 Qbd3 Qh7 Qb3 Rh8 Qbd3 Qg8 Qe2+ Kh1 Qd1+ Kg2 Qc3 Qce4 Qcc5 Bc1 Nd3+ Qe2 Rc2 Qd2 Nb2 Qdf2 Rc3 Qc2 Rf3 Bd2 Rf2+
3q2RN/B1rk1rBN/P1qR1bB1/b1pB1b1B/3Q4/K1Q2p1P/1Q1n3b/8 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 hxg4 c4 b5 f4 d5 cxd5 e5 fxe5 Nc6 a4 b4 Ba3 Na7 Bc1 Nb5 axb5 Rh4 Ra3 Rh7 Ra1 Rh8 d4 f5 Kd2 c5 Kc2 g5 Kb3 f4 e4 g3 h3 g4 d6 f3 b6 g2 a6 g3 d5 Qh4 b7 Bg7 b8Q Rh6 e6 Bb2 e5 Ra7 d7+ Ke7 d8B+ Ke8 d6 Qf4 e7 Rh8 d7+ Kf7 e8B+ Ke6 Nd2 Qe4 Bb6 Rh4 d8Q Qf4 Qe1 Re7 Qd4 Bb7 Ne4 Qh6 Qec3 Rf7 Ba7 Nf6 Ne2 g1B Ng5+ Ke7 e6 g2 Bd2 Bc8 Nh7 Bh2 Re1 g1B Nf4 Be3 Rg1 Ne4 Bc4 Qf8 Ka4 b3 Rg8 Qh6 Bc1 Nd2 Bd5 Ba1 Qbb4 b2 Ka3 b1Q Qbb2 Qd3 Ng6+ Kd6 e7 Bf5 Re2 Rg4 Nh8 Rgg7 Re1 Kc7 Re2 Qc6 Re1 Bg5 Re5 Bf6 Re6 Rf8 Bf7 Kd7 Bh5 Rgf7 Bg6 Rc8 Bh5 Rc7 Bg6 Ne4 Bh6 Nd2 Bg7 Qdb5 Bh5 Qb8 Qcb3 Qd8 e8B+ Kc8 Qe4 Bc3 Qd4 Ba5 Qbb4 Rfd7 Beg6 Rf7 Qbc4 Kd7 Qcc3 Qb7 Qf4 Bb1 Qcc1 Qf8 Qb6 Bf6 Qd4 Bf5 Qcc3 Qc6 Qbb2 Qd8 Rd6+
4k2K/b2rQrQP/qN3RBp/1R4Pb/2q3Q1/4RpN1/qn2B3/1Rq2R2 b - - 0 1 illegal: No possible last move, all moves rejected
1Q4nr/1qbq1PR1/R2R1Q1n/1Br1RQq1/2RK4/1N6/Pp3p2/1kqN1B2 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 bxa3 Na6 a4 Nb8 a5 Be6 Be2 Bh3 Bf1 Bc8 g4 Bd7 f5 Bg7 Ba3 Nh6 Bd6 Bb5 Bf4 gxf4 h3 Be2 g5 Bg4 hxg4 Ng8 Nc3 Bh6 Nb1 Bf8 Ke2 Kf7 Kd3 h5 a6 c5 d6 e5 a7 b5 g6+ Ke8 g7 Kd7 g5 Kc6 f7 Kd5 f6 b4 g6 b3 d7 b2 Nf3 h4 Qc2 h3 Nd4 h2 Nb3 Nh6 g8R f3 g7 Bd6 f8Q f2 f7 Qa5 d8Q Nd7 Qf6 Bc7 Qb8 e4+ Ke3 c4 d4 c3 Rc8 Qa4 g8R Qa5 Qd3 c2 Rg7 Qc5 Rhg1 h1Q R1g6 Qc6 Re8 Qh5 Re6 Qb7 Rg4 Rc8 Ra6 c1Q+ Qd2 Qcc6 Qc2 Qg5+ Rf4 Qe6 Bb5 Ne5 Qd3 Nc6 Nc3+ Kd6 Nd1 Kd5 Rc1 Ne7 Rc4 Neg8 Qc2 Qge5 Rf5 Qd7 Kd2 e3+ Kc3 e2 Rfg5 Qd8 Qcf5 e1Q+ Kd3 Qe4+ Kc3 Qe7 Qh7 Bd8 Qc7 Qb1 Rf5 Ke4 Qcd6 Rc5 Qhg6 Rac8 Qb8 Qf4 Qh7 Bc7 d5+ Kf3 d6 Ke2 d7 Qg5 d8R Qbc1+ Kd4 Ke1 Na5 Kd2 Rdd6 Qd7 Re5 Ne7 Qb1 Rh8 Qbf5 Neg8 a8B Qbc8 Bf3 Qb7 Be4 Qb1 Bc2 Kc1 Bd3+ Qc2 Bf1 Kb1 Qf3 Qcc1 Nb3 Ne7 Q3f4 Neg8 Q4f5+
B2q1R2/3RpPrq/RN2rp2/3R1NBn/P1rb3B/bR3K1k/1Q5Q/r7 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 gxh5 d5 c4 f6 cxd5 Be6 e5 Bd7 e6 Bc8 f3 g5 Qa4+ Nd7 Qd1 Ne5 Bd3 Nf7 Bf1 g4 f4 Ng5 fxg5 Bd7 Qf3 Bb5 Qe2 Bd3 Qf3 Bg6 Qd1 Bf7 exf7+ Kd7 Kf2 b5 d4 c5 h4 b3 d6 Ke6 h6 Kf5 d7 c4 h5 b4 d5 g3+ Kf3 c3 g6 b2 d6 g2 h7 c2 g7 b3 Na3 b1Q Ne2 g1R Rh3 b2 Bg5 c1B Bg2 Qc7 d8B Re1 d7 Ra4 Ng3+ Ke5 Nf5 Qa5 Nc4+ Ke6 Qb3 Qc2 Nb6+ Rc4 Bc7 b1R d8R Nh6 g8R Ba3 Qb2 Qad2 Rg7 Rg8 h8Q Rbc1 Rh7 Rg7 Bg3 Re5 Rd7 Qd6 Nh4 Nf5 h6 Rg1 Be1 Ng3 Nf5 Nh5 Beh4 Qb8 Bh1 Qd8 Bg2 Bc5 a3 Bd4 Ra2 Ra1 Rg3 Rg6 Rg7 Re2 h7 Re4 Rg8 Bh6 Rf8 Rg7 a4 Re2 Ra3 Re4 Rb3 Qb1 Rb5 Re5 Rbd5 Re4 Bc1 Bf4 Bh1 Bd6 Bcg5 Ba3 Bg2 Qc7 Ra8 Qd8 Ra6 Re1 Qg8 Re5 h8R Re2 Qh7 Qc2 Nd6 Ree1 Qh6 Qh7 Rf8 Re2 Kg4 Ree1 Rb3 Re2 Kf3 Re5 Ne4 Kf5 Ng3+ Ke6 Rc5 Rf1+ Kg4 Ra1 Ba8 Nf4 Kf3 Re4 Rcd5 Re5 Qg6 Nh5 Qgc2 Ree1 Qf2 Re5 Nf1 Kf5 R5d6 Ree1 Qh2 Re6 Rd5+ Re5 Kg2 Kg4 Ng3 Re3 Nf5 Re6 Qc7 Bc3 Kf2 Kh3 Kf3 Bd4 Qch2#
4nK2/N2bR3/p2bB3/1QPQ1nB1/NN2N2p/2r1kP1b/b1r3R1/3b1Q1N b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 f4 e5 fxe5 f5 Rh5 f4 Rh3 Na6 Rh1 Nb8 Kd2 f3 Rh5 f2 Rh2 Qf6 Rh1 Qf3 exf3 Be7 Ra6 Bd6 Ra1 Bf8 Kd3 Ke7 Kc4 Ke6 g4 h5 b4 a6 b6 d3 b5 d2 b7 d6 b6 h4 g6 Ne7 g5 Kf5 e6 Kf4 g7 d5+ Kc5 d4 Kd6 d3 g8N Ra7 c4 Ra8 c5 Bd7 g6 Rh7 g7 Ra7 Ra2 Rh8 Nc3 Ke3 Bb2 Nec6+ e7 Nd8 Nf6 Bh3 g8Q Rh5 Nfe4 Rf5 Qd5 Bg4 Bh3 f1B Na4 Rf4 Bf6 Bd7 Ne2 Nbc6 b8N Rg4 b7 Ne6 N2g3 Ncd4 Nc6 Nc7 b8N Rb7 Na7 Rb3 Nbc6 Rc3 Nb4 Rc2 Qb1 d1B Rg1 d2 Rg2 Rc3 Nh1 Bb3 Qc1 Rg6 Be6 Rg3 Qa1 d1B Rac2 Rh3 Rg7 Ba2 Rcg2 Rh2 Rh7 Bh6 e8Q Bf4+ Ke7 Nf5+ Kf8 Be5 Qb8 Ne8 Re7 Bf4 Qb5 Bd6 Rb2 Bh3 Rg2 Bdb3 Qaf1 Bd1 Rg8 Re2 Rg2 Rec2 Bg5+
1n3R2/B5rB/1B1r1QN1/p5QP/br1rnBnQ/6PN/1pR4k/b1B1K3 b - - 0 1 legal: proof: b4 c5 e4 d5 exd5 b6 a4 b5 axb5 cxb4 Ke2 h5 Ke1 g5 g3 Qc7 g4 Qg3 gxh5 g4 Ra2 Qf4 Ra1 g3 Ba3 g2 Bc1 Qg3 fxg3 Bb7 Na3 Ba6 Nb1 Bc8 h6 Kd7 Qf3 Kd6 d4 f5 c4 e5 h4 a5 Ra2 f4 b6 e4 h5 b3 b7 e3 c5+ Kd7 h7 e2 c6+ Kd6 c7 Ra6 Nh3 g1N Kd2 Rb6 Nc3 Be6 c8Q e1R Ne2 Rb4 Rc2 Nh6 Qc4 Rg8 h8B Bd7 Qe3 f3 Qg5 f2 Nef4 Rg6 Bd3 Ne2 Rf1 Ba4 Be4 Re6 Bh7 Nc3 Ng6 R1e4 Bf6 Bg7 Bd8 Nc6 Bb6 Nb8 Ba7 Bh8 Nhf4 Kd7 d6 Bf6 d5 Bd4 Rg1 f1R Rg2 Re7 Rf2 Rg7 Qa6 Re6 Qb6 Rf6 Rf3 Rf2+ Ke1 Rd2 Qh4 Ne4 Qc6+ Kd8 d7 Ba1 Qd6 b2 Qe5 Rdd4 Qeg5 Nc3 Rff2 Kc7 d8B+ Kd7 d6 Ne4 Bdb6 Re6 Nh3 Rf6 Ng1 Ke6 d7 Rb5 d8Q Rbb4 Ne7 Rfg6 Rf8 Rf6 Qd2 Ke5 Ng6+ Kf5 Qh1 Kg4 Qe3 Nd7 b8B Re6 Be5 Nb8 Qf6 Red6 Qh2 Rd2 Qc5 R2d5 Bef4 Rdd4 Ne2 Kf3 Qhh4 Kg2 Qcg5 Ng4 Ng1+ Ngf2 Rc5 Ng4 Nh3 Kh2 Rc2+
r1N3Q1/BbkN1Pr1/R5pn/N2PK3/Q1b2R2/3pb1NR/2Nn2n1/2B4b b - - 0 1 legal: proof: d4 a5 g4 d5 b4 f5 gxf5 e5 bxa5 e4 c4 Be6 cxd5 Bd6 Bg2 Bc8 Bf3 Bf8 Bh5+ Kd7 Be8+ Ke7 Bb5 Kf7 Ba6 Ke8 Bd3 exd3 h4 g6 h5 Qf6 h6 Qg7 hxg7 Bc5 Qc2 Bd6 Qd1 Bf8 Kd2 Kd7 Kc3 b5 f4 h5 a4 c5 e4 c4 d6 h4 a6 h3 e5 h2 f6 Bb7 a7 Rh4 a5 Rg4 f5 Bf3 d5 Kd8 e6 Nh6 g8Q Rd4 d7 Kc7 d8N Be7 f7 Re4 f8B Rh4 a6 Ng4 Kd4 b4 f6 b3 f7 b2 Nc6 c3 Na3 b1B Ne2 c2 Na5 Nh6+ Ke5 Bg4 Ng3 Bc5 e7 Ba2 e8R Be3 Bc5 Bc4 Rf1 h1B Rf4 Bc8 Re6 Bf3 Ref6 Rh1 Rh4 Be4 Rff4 Bb7 Rh3 Rh2 Bb2 c1N Qa4 Nb3 Nc2 Bg2 Bc1 Nd2 Qb4 Bb5 Rh5 Nf5 Na3 Nh4 Nb3 Bc4 Nc2 Bh1 Ra5 Ng2 Qa4 Bg1 Rh8 Rh7 Bd4 Rg7 Rh3 Nh4 Rb5 Bf2 Na5 Ng2 Rb6 Nc6+ Ke6 Nb4 Ke5 Rd8 a8N+ Kc8 a7 Be3 Ra6 Rf8 Nb6+ Kc7 Nd7 Nc6+ Ke6 Ne7 Ke5 Nf5 a8N+ Kc8 Ba7 Nh6 Nab6+ Kc7 Nc8 Rd8 Ncb6 Ra8 Nc8
5b2/2N1NqP1/QqQN1R2/Q1q5/PR3K1b/1kn1pnB1/2n1p1b1/QB3Q2 b - - 0 1 legal: proof: g4 h5 b4 d5 e4 dxe4 h4 f5 gxf5 b5 c4 a5 bxa5 g5 f4 g4 f6 Rh6 f5 Rg6 Ba3 Rg5 hxg5 Ra6 Bb2 Rd6 Bc1 Rd5 cxd5 Bb7 Ne2 Ba6 Ng1 Bc8 Kf2 Kd7 Kg3 Kd6 a4 Kc5 d4+ Kb4 g6 c5 d6 e5 d7 c4 f7 e3 g7 e2 a6 e4 f6 h4+ Kf4 g3 a7 h3 a8N c3 d5 g2 d6 c2 Nc3 h2 Nc7 Kb3 Nf3 g1Q Rb1+ Kc4 Nd4 Nh6 N3d5 Na6 Nf5 Nb4 Nde7 Ng4 Qe1 Qe8 d8Q Bb7 d7 Qc5 Qc8 Ne5 d8Q Nf3 Bg2 Qec6 Rf1 h1Q Ba3 Ba8 Qa6 c1B+ Qdd2 Bb2 Nd6+ Kb3 Qdd1+ Nc2 Qea5 e3 Rf2 Nh4 Be4 Qf1 Bb4 Bb7 Be1 b4 Rf3 Q6b5 Bg3 Qbb6 Rf2 Nf3 Qd5+ Ka3 Qc6 b3 Bh7 Bc3 Rb2 Be1 Bg6 Nb4 Bb1 Nc2 Nec8 Ncd4 Qe8 Nd2 Kg4 Ba8 Bh7 Bc6 Be5 Be7 f8Q Bg2 f7 Qbb4 Qec6 Qbb6 Rf3 B1h4 Bg3 Qf2 Qfe8 Qf1 f8Q Qf2 Qff7 Bf8 Qe5 Qf1 Rb1 b2 Ne7 Qf2 Bf5 Qf1 Rf4 Qf2 Rf1 b1N Qff6 Kb3 Bd3 Nc3 Bb1 Nce4 Qff5 Nc2 Qa1 Nc3 Rc4 Be4 Qf3 Bd5 Qg2 Qf7 Rf6 Be4 Qf1 Bg2 Kf4 Nf3 Rb4+
n1qn3B/p1Np1b1Q/n1R4n/1P1n2R1/4RQ2/4PNqk/3B1RrR/3BK3 b - - 0 1 illegal: No possible last move, all moves rejected
N4Q1K/R4qQ1/1bQr2P1/1Qqp3B/2R2n2/qP2Q1B1/q4Bp1/n1kN3n b - - 0 1 illegal: No possible last move
BQnn2b1/3q4/R1n1k2R/b2Rp2P/1QR1K2N/1pq1P1Q1/NR2qq2/B7 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 g5 b4 axb4 fxg5 Bg7 Qb3 Bh6 Qd1 Bf8 Nf3 b5 Ng1 h4 Nf3 Rh5 gxh5 Ra6 Ng1 Rh6 Nc3 Rh7 Nb1 Rh8 h3 Rh6 Ba3 Rc6 Bb2 Rc4 Bc1 Rg4 hxg4 Bg7 Qc2 Bh6 Qd1 Bf8 Kf2 Kd7 Kf3 c5 a4 f5 d4 e5 d6 h3 g6 h2 a5 b3 a6 b4 d5 f4 a7 c4 a8Q b2 g7 b3 g5 c3 e3 c2 g6 Qh4 Qd4 Qd8 Ra6 Ne7 g8R Bb7 g7 Ng6 Qb4 Ne7 Rh8 Nc8 g8Q Nc6 Nc3 b1N Rh6 Na3 Bb2 c1Q Qb8 Nc4 Ba1 N4a5 Ke4 f3 Bg2 f2 Na2 f1Q Qg3 Qf2 Nf3 Qc3 Rb1 h1Q Nh4 Qhf1 Rb2 Q1e2 Bf3 Qe7 Bh1 Nd8 Bf3 Ke8 d7+ Kf7 Bg2 Nac6 d6 Ne6 d8R Qd7 Bf3 Be7 Rg8 Bd8 Rg4 Ba5 Bg2 Qc7 d7 Ned8 Ng6 Ke6 Bh1 Nf7 d8R Qe7 Rd5 Nd8 Ra8 Ba6 Bg2 Bc4 Ra6 Qd6 Nh4+ Kd7 Rd4 Bg8 Rc4 Qe6 Rgg6 Qh3 Rd6+ Ke7 Bf3 Qd7 Rd5+ Qd6 Kf5 N6a7 Rd3 Kd7 Qf4 Ke7 Ba8 Nac6 Ke4 Kd7 Qg3 Ke7 Ng6+ Ke6 Rd5 Qd7 Nh4+
q2B1QN1/1N1rb2b/q5q1/1QRp4/B1B1N3/2p5/PB2rbPB/2KRk2b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 b5 c4 f5 exf5 b3 Ke2 c5 Ke1 b4 Qg4 Na6 Qd1 Nc7 d3 Nb5 cxb5 c4 d4 Nf6 Rh4 Ne4 Rh1 Nc5 dxc5 Ra4 Na3 Ra7 Nb1 Ra8 Kd2 Kf7 f4 d5 g6+ Kf6 g7 e5 b6 h5 c6 b2 b7 b3 b8B h4 c7 h3 Na3 b1Q Qe2 b2 Nf3 e4 Nb5 h2 Ng5 Rh6 Nd6 Be7 Nb7 e3+ Kd1 Bd7 c8B Rh7 Rg1 Be6 Bd7 h1B Ba4 Bg8 Bc7 Qd6 Bd8 Qa6 Qd3 e2+ Kd2 Ra7 Ne4+ Kf7 f6 Kg6 f5+ Kh5 f7 Kh4 f8B e1B+ Kd1 Bf2 f6 c3 f7 Rh6 Qb5 Bh7 g8N Re6 Bc4 Re5 Bh6 Qd3+ Bhd2 b1Q f8Q Qg3 Be3 Qgg6 Bf4 Qb2 Re1 Qa3 Bb2 Kg4 Bh2 Kh4 Nbd6 Rd7 Kc1 Kg4 Rb1 Kh4 Nef6 Re2 Nb7 Qa8 Rd1 Qd6 Be5 Qda6 Ne4 Kg4 Bf6 Kf4 Be5+ Ke3 Bh2 Qb8 Qb3 Qaa7 Ba3 Qaa6 Qb4 Qc8 Qa5 Qb8 Rb5 Qba8 Bb2 Bfh4 Nef6 Kf2 Rc5 Bg3 Qb5 Bh4 Rd3 Ke1 Ne4 Bf2 Rd1#
2Qq2B1/1qNr1n1N/5BBP/1R2p1rn/2r1Np1N/2k2N1K/P5Q1/4rRq1 b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 a5 b4 axb4 g4 h5 gxh5 Nd7 d4 Nb6 c4 Rb8 f5 Be6 fxe6 Nd7 c5 Bd6 cxd6 Ra8 Bh3 Nb8 Bg2 Qf6 Bf1 Qd8 Kf2 c5 Kg3 b5 h4 f5 e7 Kf7 e8B+ Kf6 d7 g5 h6 c4 h5 c3 h7 g4 h6 c2 d6 b3 d5 b2 Qf3 b4 Bg6 b3 Nd2 b1R Qg2 b2 Bc4 Ne7 Ngf3 Nec6 Rf1 Rg8 h8N Ra7 Kh2 g3+ Kh3 Qe7 d8N f4 Ne6 Nd8 d7 Nf7 d8N Nd7 Nf8 Qe8 Nde6 Qd8 d6 Rb7 Qh2 g2 Nc7 g1Q Qg2 Ra7 Nb3 Rb7 Nc5 Rg7 Be3 Re1 Rb1 c1R Bf2 Ra7 Bd5 Rc4 Be6 Nb6 d7 Nd5 Nh7+ Ke7 Qh2 Kd6 Bh4 Nf6 Qg2 Nh5 Ne4+ Kc6 Bd5+ Kb6 Bg5 Ka5 Bf6 Kb4 Be6 Nd6 Bg8 Nf7 Rd1 b1Q Rd5 Qd1 Rc5 Qd5 Ra5 Qb7 Rd5 Qf8 d8Q Qe7 Qc8 Qd8 Bf5 Rg5 Ng6 Ra5 Ngh4 Ra7 Ng3 Kc3 Bg6 Ra6 Rc5 Rd6 Rb5 Rd7 Ne4+
Rq3N1R/3N2p1/1P2n1P1/2qk1r1q/3n1B2/2rNp1Q1/r1q1Q3/1N1QBNK1 b - - 0 1 legal: proof: g4 b5 a4 d5 axb5 h5 c4 Bf5 cxd5 Rh6 d6 Nc6 e3 Rh8 g5 Bc8 Be2 Nb8 Bg4 hxg4 d4 e6 d5 Be7 Ke2 Bf6 Ke1 Bd4 exd4 Qf6 Kf1 Qe7 Ke1 Qd8 f3 e5 Be3 e4 Bc1 e3 Ra3 Bf5 Ra1 Be4 fxe4 Qd7 Nc3 Qe7 Nb1 Qd8 Kf1 Kd7 b4 a5 h4 f5 g6 c5 Qe2 f4 e5 c4 h5 f3 e6+ Ke8 d7+ Ke7 h6 Kd6 e7 a4 e8N+ Ke7 d6+ Ke6 d5+ Ke5 h7 a3 Nf6 f2 Bd2 c3 Nf3+ Kf5 Be1 c2 Nh2 Qb6 d8N Ke5 d7 c1Q d6 g3 Nb7 Nh6 d8N Nd7 Ne6 Rhc8 h8Q Nc5 d7 Nf5 d8Q Qc2 Qdd1 Nd4 Nf8 Nce6 Qh4 Rc3 N6d7+ Kd5 Kg2 f1R Nbc5 a2 Nd3 Qd6 Qg5+ Rf5 Nf1 Qc5 Rh4 Qa4 Qf4 Ra7 Rh8 Qc2 Kh1 g2+ Kh2 Qd6 Qg3 Qb8 b6 Qf4 b7 g1Q+ Kh3 Qb8 b5 Qh1+ Qeh2 Qc7 b8B Qc5 Bf4 Qf3 Qhe2 Qh5+ Kg2 Ra4 Nbd2 Raa3 Kg1 Ra7 Rc1 a1Q Rb1 Qa6 b6 Qac8 Ra1 Qb8 Nb1 Ra8 Ra4 Ra7 Rc4 Raa3 Ra4 Ra2 Ra8
1B3Q2/2RBpp1n/q3RQ2/PPN5/Rbn1b1nQ/1N2k1Q1/2q1q2Q/6Kn b - - 0 1 legal: proof: e4 d5 exd5 a5 b4 axb4 c4 h5 g4 b3 gxh5 Be6 Ke2 Bf5 Ke1 Bc8 f4 b5 Qc2 g5 Bb2 b4 Qc1 g4 Qd1 Ra5 Bc1 Rb5 cxb5 Rh7 Nc3 Rg7 Nb1 Rg5 fxg5 Qd6 Nc3 Qd7 Nb1 Qd8 Kf2 Kd7 d4 Kd6 h4 c5 a4 b2 a5 c4 g6 c3 h6 c2 g7 b3 h5 Bd7 h7 Qe8 h8Q Bc6 h6 Qd8 h7 Qb6 Nf3 g3+ Kg1 g2 Qe1 Qc7 Ra4 Qa7 Rh6+ Nf6 g8Q Bg7 Nfd2 Nd7 Qh4 Ne5 Nc3 b1Q Rg6 b2 Nb3 Bh6 Bf4 c1Q Bg3 Qd2 Ne4+ Kc7 Qf8 Qa6 Nec5 Kd6 Qhg8 Bb7 h8Q Qbc2 Bd3 b1N Bf5 Bf4 Bd7 Ng4 Qh2 Na3 Q8h4 Qe2 Rh6 Qe6 Qgg7 Nh7 Qgf6 Nc4 Qg8 Kc7 Qgg7 Qee2 d6+ Kd8 d5 Bd2 Qgg5 Bb4 Bf4 Bc6 Q4g3 Ba8 Q5h4 Bc6 Bc8 Ke8 d7+ Kf8 d6 Be4 Qd4 Kg8 Re6 Kf8 Qdf2 Kg8 d8Q+ Kg7 Re5 Kg6 Re6+ Kf5 d7 Qc3 Qd4 Qcd3 Bb8 Qdc2 Q4h3 Kg5 Qf8 Kf5 d8R Kg5 Qh1 Kf5 Rdd6 Kg5 Qgh4+ Kf4 Q3h2+ Kf3 Qdf6+ Ke3 Rc6 Qed3 Qhe5 Qde2 Bd7 Nh6 Kh2 g1N+ Qg2 Nh3 Rc7 Nf2 Kg1 Nhg4 Qgh2 Nh1 Qeg3+
1RqR1b2/1PN4K/1bbRp1QB/2Q5/r3b3/NpP1r1k1/1r5R/2N1RB1r b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 b4 b3 a5 Qd2 Na6 Qd1 Nc7 Na3 Nf6 Nb1 Nb5 Bc4 Ne4 Bf1 Nc5 axb5 a4 Qe2 a3 Qd1 Na4 bxa4 Rh6 Qe2 Rh7 Qd1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 h4 a2 f4 g4 c3 d6 b6 d3 h6 b3 b7 g3 a5 d2 a6 g2 a7 Qb6 h5 Rb8 a8N Qa7 h7 Qa5 h6 Bg7 Qh5 d1B Rh2 Qc7 Na3 Bd7 Ne2 Qc8 Nc7 g1B Rb1 Re8 h8R a1R h7 Ra2 Bd2 Bb5 Nc1 Rb2 Rg8 Ba7 h8R Bf8 Be3 Bb6 Rg6+ Kf7 f6 d5+ Ke5 d4 f5 d3 Bh6 d2 Kf4 Bf3 Kg5 d1R Qg4 Red8 Qg2 R8d4 Qg3 Bg7 Rd8 Ra4 Ra1 Be8 Qd6 Be4 Qc5 Kg8 f7+ Kh7 f8Q B8c6 Qe8 Bf8 f6 Re1 f7 Re3 Rgd6 e6 Nd3 Rba8 Re1 R8a6 Nc1 Ra7 Kg4 Kg6 Kh4 Kf6 Kh5 Ra8 Qb4 Ke5 Qc5+ Bed5 Kg6 Ke4 Bg5 Kf3 Bh6 Kg3 Kh7 Rh4 Bd3 Raa4 Bf1 Be7 f8R Be4+ Qf5 Rh5 Rh8 Bf8 Qeg6+ Rg5 Qc5 Rg4 Qgf5 Rh4 Qg6+ Kf3 Na6 Qa8 Rg2 Rh1 Re8 Be7 Nc7 Qd8 Rhg8 Qd7 Rb8 Qc8 Rgd8 Bf8 Rg4 Kf2 Rh4 Kf3 Rh5 Kf2 Rh2+ Kf3 Qgf5+ Kg3 Qg6+
n3QB1B/8/n1r3k1/2rRN1p1/BBnn3B/1PKpr1P1/4R1rn/Q2RN3 b - - 0 1 legal: proof: h4 f5 e4 fxe4 a4 c5 c3 b5 axb5 c4 h5 g5 Qb3 Qb6 Qd1 Qg6 hxg6 Bb7 Rh5 Bg7 Rh1 Bd5 d3 Bd4 Nd2 Bc5 Nb1 Bb4 cxb4 c3 Ra2 Kf8 Ra1 Bc4 dxc4 Ke8 f4 a5 g7 Kf7 b6 e5 b7 d5 c5 h5 f5 e3 c6 h4 c7 e2 c8R a4 b5 h3 f6 e4 b3 h2 b6 a3 Qd4 c2 Kd2 e1R Nf3 a2 Kc3 e3 Bb5 e2 Nbd2 Ra5 Rc5 Kg6 f7 Ne7 f8B Nc8 Bb2 c1N Ne4 Na6 b8B Nd3 b7 Nb6 Ba4 Ne5 Rd1 a1N Nd6 Rh6 Nf7 Na8 Bbd6 Nc4 b8B Nc2 Ba1 Rg1 Ne1 Rb5 Qe5 Nd4 Qe8 Ra5 Bde7 Rh3+ Bg3 Rb5 Rd2 Rb6 Ra5 Rc6 Bb4 Rc5 Qe3 Rc6 Bh4 Rf3 g3 Rg2 Rf1 h1R Bb2 Rf5 Qg1 Re5 Rf2 Re7 Rd1 Re3+ Nd3 e1N Re2 Nef3 g8Q+ Kf5 Qh8 Kg6 Qe5 Nh2 Qe8 Ree6 Ne1 Rc5 Qe3 Rec6 Qc1 Rf1 Rb5 Rf5 Qa1 Re5 Nd3 Ne6 Ne1 d4+ Kc2 d3+ Kc3 Re3 Ra5 Rce5 Rd5 Nd4 B2a3 Rc7 Bg7 Re6 Bh8 Rec6 Bf8 Rc5 Bb4 R7c6 Ne5+
2Q2Kn1/R1NB4/qknP1Q2/1R6/n2N1r1p/1bRR1BP1/1p1r1p2/4RN1b b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 g5 f4 Ra7 fxe5 Ra8 Ba3 Ra6 Bc5 Ra7 Be3 Ra8 Bf4 gxf4 g4 Bc5 Qb3 Qd7 Kd1 Bf2 Kc1 Qd6 Qd1 Qd8 Kc2 Bg3 hxg3 Ra7 Qc1 Nd7 Kd1 Ra8 Ke1 Nb8 Qc2 Nh6 Qd1 Ng8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 a4 b5 d4 h5 d6+ Kb7 Kd5 f5 e4 c4 e6 b4 e7 f3 e8B c3 e5 h4 d7 c2 Kd6 c1N a6+ Kb6 a7 b3 e6 f2 d5 b2 g5 f4 a5+ Kb7 g6 f3 a6+ Kb6 g7 Nh6 g8Q Nb3 e7 Na5 Ra3 Nac6 Nd2 Na5 Bg2 f1B Rc3 f2 Ne2 Bb7 Bf3 Nbc6 Nd4 Bg2 Re1 Nb3 Nf1 Qc8 d8R Nc1 Bd7 Na5 e8N Bc6 Ke7 Ne2 Nc7 Ba4 Kf8 Bh1 Qd3 Nc6 Qg6 Qb7 Qf6 Bb3 d6 Rc8 a8R Rh7 a7 Qa6 Rd3 Nc3 Rde8 Na4 Rb8+ Qb7 Qg4 Ng8 a8R Rg7 Qh3 Rg4 Ra7 Re4 Qhf5 Re2 Rc1 Rd2 Rcc3 Rd8 Kg7 Rc8 Re1 Re8 Qg4 Re4 Kf8 Rf4 Qe6 Bc4 Qe8 Bb3 Qc8 Re4 Ra5 Rf4 Rba8 Qa6 Ra7 Rc2 Rg5 Rd2 Rb5+
2rn2BN/PRQ2Q2/1bk5/n1Nr2P1/1bn1N3/B3p2R/1NpN1p2/K1R3q1 b - - 0 1 legal: proof: c4 h5 d4 a5 b4 axb4 e4 d5 cxd5 Kd7 g4 Rh7 gxh5 Rh6 d6 Ke6 d7 Rh8 d5+ Kd6 f3 Ke5 Bf4+ Kf6 Qc1 g5 Qd2 b6 Qd1 g4 Bh6 g3 Bc1 Bb7 d6 Bd5 exd5 c6 Ke2 Qc8 Ke1 Qa6 Bd2 Qc4 Bc1 Qg4 fxg4 Ra3 Ba6 Ra5 Bf1 Ra8 Kd2 Ke5 Kc2 f5 Kb2 b3 d8Q g2 a4 b5 h4 e6 h6 c5 h7 f4 h5 b4 d7 Kd6 a5 f3 h6 c4 a6 f2 g5 e5 a7 e4 Nd2 e3 Qf3 Kc5 d6 Kb5 Rh3 Ne7 Qc7 Nbc6 d8R Na5 d7 Rc8 Qf7 Nec6 Ngf3 g1B Ne5 Bh2 Nd3 c3+ Kb1 Bf4 Ba3 c2+ Kb2 B4d6 Rc1 Bc5 Ka1 Bb6 Nb2+ Kc5 Bg2 Kb5 Re8 Nd8 Re7 Rg8 h8N Rg6 h7 Rd6 Qe8 Rd5 Rg7 Be7 Nf7 Bd6 h8N Bdc5 Qb8 Kc6 Be4 Be7 Bh7 Bec5 Bg8 Bf8 Nd1 Bfc5 Nd6 b2+ Ka2 b1N Qf7 b3+ Ka1 Bb4 Nb2 Bc3 N6e4 Bb4 Nf3 Nd2 Rgh7 Ndc4 Nfd2 Ndb7 d8N+ Kb5 Ne6 Kc6 N6c5 Nd8 Qf8 Rf5 Nba4 Rd5 Rb7 b2+ Ka2 Rd6 Qf7 Rd5 Qbc7+ Kb5 Rch1 Nac6 Kb3 b1Q+ Nb2 Qc1 Ka2 N6a5 Rf1 Qd1 Rfh1 Qg4 Rc1 Qg1 Qg3 Kc6 Ka1 Qh2 Qb8 Qg1 Qbc7+
BnNrr1Q1/pp6/N1Q1RB2/B2r4/2P4B/bq3P1K/5BQp/2nk1bR1 b - - 0 1 illegal: Other
1krQ2qN/3b2n1/1n2Q1BB/P1RB1b1B/1qrp3K/p1pNP3/1RQ5/5B2 b - - 0 1 illegal: No proof kernel
1B1QB1NR/5p2/2Q1qrpq/2pb1kNP/NRP1n2K/2n3Q1/r2Q4/3Q1b2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Nh6 fxg5 Bc5 g6 Bf8 g7 Ng8 g4 a5 b4 a4 g5 Bc5 g6 hxg6 Bh3 Bb6 Bf1 Ba5 bxa5 Ra7 Nd2 Ra6 Nb1 Ra8 Kf2 Ke7 Kg3 Ke6 h4 d5 e4 c5 a6 d4 b6 a3 b7 a2 a7 d3 Nc3 d2 Rb1 a1Q Na4 Qc7 Bb5 Qd6 c4 Bd7 Nh3 Qe7 Rb4 Qf8 Ng5+ Ke7 e6 Kf6 e5+ Kf5 e7 Na6 b8Q Be6 e8Q Bd5 e6 Nc7 e7 Nf6 g8N Qh6 Qc6 Qe5+ Kh3 Rh7 e8Q Ne4 Qed7+ Qe6 Qbd8 Rb8 a8Q Rb6 Qab8 Ra6 Bb2 Rb6 Be5 Ra6 Qc1 d1B Qd2 Be2 Rh2 Ne8 Rh1 N8f6 Bh2 Nc3 Qg3 Bdf3 Qd1 Nfe4 Q7d2 Bd3 h5 Rh8 Re1 Bf1+ Kh4 Rb6 Nf6 Re8 Ng8 Re7 Re3 Ra7 Rd3 Nf6 Rd7 Bd5 Re7 Rba6 Re8 Ra8 Qg1 R8a7 Bb8 Nfe4 Qg3 Rb6 Nf6 Raa6 Rh8 Ra5 Ng8 Rba6 Nb2 Ra2 Na4 Qc8 Qb7 Rf6 Be8 Qe6 Qc6
3n3N/1rBR1q1k/2NN2BB/P2Qr1p1/Q1Bpb1KB/n2P4/R3pq2/6n1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 b4 e4 e6 exf5 b3 a6 Ba3 c3 Bb4 cxb4 Rh7 a5 Rh8 b5 Qh4 b6 Qd8 b7 Nc6 b8R Nxb8 Ke2 Kf8 Kf3 d5 h4 c5 f6 e5 f7 g6 h6 d4 a7 c4 h7 Kg7 f8B+ Kf6 h5 b2 h6 c3 Qa4 c2 Bd6 Ba6 Na3 b1N Nc4 e4+ Kg4 e3 f4 Nc3 f5 Ne7 Ra2 Qc7 Nf3 Rg8 h8B+ Rg7 h7 Ne2 Nfe5 Ng1 Bd3 e2 Rh6 Ng8 Nc6 Nd7 Bf4 Kf7 f6 Re8 Rh4 Kf8 f7 Nb6 Rh5 Qe7 Rd5 Qf6 Bg5 Qf2 Bh4 Re7 Rd6 Rb7 Rd7 g5 Bg6 Bb5 Bh5 Rg6 Be5 Re6 Bc7 Kg7 h8N Re5 Ba3 Kh7 Bf8 Ba6 Nd6 Bd3 Bg7 Nc4 f8Q Na3 Qf7 Bg6 d3 Be4 Nd8 Ne7 a8B Nc6 Qe6 Rb4 Bh6+ Qf7 Bb7 c1Q Ba6 Rb7 Qd5 Qf1 Bc4 Nb8 Nc6 Qf2 Nb4 Nc6 Bb8 Nb1 Bc7 Nd8 Nc6 Na3 Bg6+
k1qq3N/nr3Bb1/1Np2Qp1/K3Q1N1/2b1pNP1/2RR1NnP/2B5/3q3R b - - 0 1 legal: proof: b4 a5 g4 h5 e4 f5 exf5 b5 c4 d5 cxd5 a4 Ba3 Ra5 bxa5 h4 Bd6 Nh6 Bg3 Ng8 a3 b4 axb4 hxg3 b5 Be6 Qc1 Bd7 Qd1 Bc8 d4 Kd7 Kd2 e5 Kc3 g2 f4 a3 b6 g6 d6 Kc6 Kb4 Kb7 a6+ Ka8 f6 a2 h3 e4 b7+ Ka7 f5 Nd7 b8N Bb7 f7 Qe8 d5 Ba8 f6 Bg7 f8N Nc5 d7 Qd8 d6 Rh4 f7 Rh8 Qd4 Bc6 Ka5 Ba8 Nf3 g1Q Bd3 Bf6 Ng5 Qe8 d8R Bb7 d7 Qg2 Nfe6 Ka8 f8Q Na4 a7 Rh7 Qe5 Bd5 Nf4 Qc2 Nd2 Nh6 Rac1 a1Q Ndf3 Bg7 Qff6 Qc4 Rc2 Qd1 Rc3 Nb6 Bb1 Nc8 Bc2 Kb7 a8B+ Ka7 Nge6 Nf5 Neg5 Ng3 Bb7 Bg8 Bd5 c6 Bf7 Ka8 Na6 Qce6 Nb4 Qed6 Nbd5 Qb8 Be6 Na7 Nb6+ Kb7 Ba2 Qc8 Bf7 Qf8 Re8 Qfd6 d8N+ Kb8 Re6 Qdc7 Rd6 Qe7 Ba2 Bc4 Ndf7 Qed8 Bab3 Bh6 Nh8 Rb7 Qef5 Bg7 Rdd3 Bb5 Bf7 Bc4 Q5e6 Qdd7 Nbd5 Ka8 Qee5 Qdd8+ Nb6+
rq6/1r1N4/1p1bB1kq/1K1Pn1BB/BQQ1P1RB/Rb4Np/3p2qQ/8 b - - 0 1 illegal: No possible last move
1Qr2Nb1/BNBR1pq1/2p2B2/1n6/B5qp/q2B1r1k/1Rn2PQP/2K2R2 b - - 0 1 legal: proof: b4 b5 g4 h5 d4 e5 dxe5 d5 c4 a5 cxd5 g6 g5 Bh6 gxh6 axb4 a4 Kd7 axb5 Ke8 Kd2 Kd7 e4 b3 h7 g5 e6+ Kd6 e5+ Ke7 d6+ Kf8 b6 Kg7 d7 Kh6 e7 b2 e8R h4 e6 g4 b7 Kg5 e7 g3 Qf3 g2 Nc3 b1Q Ra2 Qf5 Na4 Ra5 Nc5 Nf6 Bd3 Na6 b8Q Nb4 Ne2 g1Q Nd4 Nfd5 Nb7 Qfg4 Qg2 Nc2 Rb2 Nc3 Ne6+ Kh5 Rf8 Nb5 e8B Qe7 d8B Qa3 Bd7 Rg8 h8B Ra4 Bhf6 Rf4 Re8 Rf3 Nf8 Qg7 Bc6 Bf5 Re7 Bh7 Rd7 Rh8 Be2 Bg8 Bd3 Nbd4 Ba4 c6 Bc7 Nb5 Qf1 Q1g6 Qg2 Qg3 Rf1 Kg4 Qh1 Qf4+ Kd1 Qc4 Be3 Kh3 Kc1 Qcg4 Ba7 Bh7 Ne6 Rc8 Nf8 Bg8 Qg2+
1NN2r2/2qp4/1Q2NB2/1NP2RK1/2QnB1R1/Npb2Pb1/p2k3n/1n4Bq b - - 0 1 legal: proof: e4 f5 exf5 c5 g4 h5 gxh5 b5 d4 cxd4 a3 a6 a4 b4 b3 a5 Qd3 Ba6 Qd1 Bb5 axb5 a4 b6 a3 Qe2 Rh6 Qd1 Ra4 bxa4 Rh8 Ke2 Kf7 Kf3 Kf6 Kf4 a2 c4 e6 h4 g6 c5 b3 f3 d3 b7 d2 a5 Rh6 a6 Rh7 a7 Qa5 a8N Rf7 h6 Qa7 h5 Na6 b8N Nc7 h7 Nh6 h8B+ Bg7 Bd3 Nb5 Ne2 Ng4 h6 Nd4 h7 Nh2 Be4 Rf8 Qc2 d1N Nb6 Nc3 Na3 Nb1 Nc3 Qb7 Nc8 g5+ Kg3 Ke5 f6 g4 Kh4 g3 f7 g2 Be3 g1Q Ncb5 Qf1 Kg5 Qc7 Qc4 Qh3 Bg1 Qg2+ Kh4 Kf4 Kh5 Be5 Bf6 Bd6 h8Q e5 Qh7 Qf1 Qg6 Qd1 Bd3 e4 Bc2 e3 Be4 e2 Qh6+ Kg3 Kg5 e1B Qg6 Bc3 Qh6 Ng4 Rh5 Nh2 Qg6 Kg2 Qh6 Bg3 Qg6 Rd8 f8N Re8 Ne6 Rf8 Rh4 Qc1+ Rf4 Qf1 Rf5 Qd1 Qb4 Kf1 Qc4+ Ke1 Qh6 Nd2 Rc1 Nb1 Rc2 Bd6 Rg2 Bg3 Bf2+ Kd2 Bg1+ Bf2 Rg4 Bg3 Qg7 Qf1 Qe7 Qg2 Qd6 Qh1 Qb6
r1R1RK2/7k/2NN2NQ/rR1Qn2n/1P1nBb1q/1pR4p/1Pn2p2/2BR4 b - - 0 1 legal: proof: h4 d5 f4 b5 c4 g5 hxg5 e5 cxd5 exf4 a3 Bb4 Nc3 Be7 Nb1 Bf8 d3 c5 Qc2 c4 Qa4 c3 Nd2 Qd6 Qc2 b4 Nb1 b3 Qd1 Qb4 axb4 Bb7 Nd2 Ba6 Nb1 Bc4 dxc4 Kd8 Ra5 Ke7 Ra1 Ke8 Kf2 h5 Kf3 f5 g4 Kf7 e4 Kg7 g6 a5 d6 h4 e5 c2 e6 h3 g5 a4 c5 a3 c6 a2 e7 Rh7 e8R Nh6 d7 Ra7 d8N Ra4 c7 Kg8 c8R Ng4 g7 Rh8 Rc3 Na6 Bd3 Nh6 Na3 Nc7 Ne2 Kh7 g8R Ng4 Nc6 Ra5 Nb5 Bh6 Be4 Ne6 Qd5 Nf6 Rd1 Nh5 Nd6 Nd4+ Kf2 f3 Ke3 f2 Nf4 f1Q Ng6 Qa6 Rc8 Qb7 Rge8 f4+ Kd3 f3 Kc4 Ra8 Kc5 f2 Nf7 Qb6+ Kd6 Ra5 Ke7 Qb5 Nd6 Qc4 Bd2 c1N Kf7 Nd3 Bc1 Rg8 Ke7 Rg7+ Kf8 Ra8 Rb8 Ne5 Rb5 Nf6 Rb1 a1N Rc8 Nac2 Ra1 Rb8 Ra8 Nh5 Re8 Qd3 Rc8 Qg3 Re8 Rd8 Rc8 Qh4 Nh8+ Nf5 Rcb8 Ng4 Qe6 Ngf6 R5b6 Rdd7 Qd5 Ra7 Rb5 Ra5 Rbc8 Ng4 Nhf7 Nge3 Nfe5 Nc4 g6+ Kh8 Rd2 Bf4 Rd1 Rga7 g7+ Kh7 g8Q+ Kh6 Rdd3 Ra8 Qg5+ Kh7 Ng6 Nfd4 Rd1 Ne5 Qh6+
NN2B3/1nKp4/8/3Q1Q1p/nQ1pPN1r/6qN/RPkNb3/Bn1nRb2 b - - 0 1 illegal: Other
BQR5/qp1R4/p2Q2R1/n1r1Rn2/Pp2r2N/1rB1Pk2/4NN2/1n1KR2q b - - 0 1 legal: proof: g4 g5 f4 e5 fxg5 d6 h4 e4 h5 e3 dxe3 Qe7 e4 Bf5 e5 Bg6 hxg6 Qd8 b4 a6 b5 d5 Rh2 Bc5 Rh1 Ba7 b6 Qd6 Qd4 Qf6 Qd1 Qd8 bxa7 c6 Bg2 Qf6 Be4 Qe7 Bd3 Qd8 Bb5 cxb5 a4 Ke7 c4 Ke6 c5 h5 g7 f5 c6 h4 e3 b4 g6 d4 c7 Kd5 c8R Ke4 g5 h3 e6 f4 e7 d3 e8R+ Qe7 Bb2 h2 Nh3 f3 Nf4 Nh6 g8R Ng4 g7 Nc6 g6 Rh7 Ng2 Rh5 Bc3 f2+ Kd2 Qe6 Re1 h1Q Re7 Rb8 a8B f1R Rd7 Qe7 Rge8 Na5 g8N Rc5 g7 Nh6 Ra2 Nf5 Nh6 Qe5 g8Q Qe6 Kc1 d2+ Kc2 Rf2 Ng4 Re2 Ra1 Kf3 Nf2 Qb6 Re5 Qa7 Qf8 Qh6 Qd6 Qh1 Qc1 d1N+ Qcd2 Nb2 Qc7 Nbc4 Kd1 Na3 Qdd6 Rb2 Ra2 Rb3 Rc2 Ne7 Rg8 Qh4 Rg6 Re8 Qb8 Qh8 Bd2 Qh4 Nc3 Nb1 Ne2 Nf5 Rc4 Qh1 Bc3 Rb5 Rc8 Rc5 Rd5 Re4 Re5 Rec4 Rh6 Rg4 Rg6 Re4 Nh4+
3q2n1/2kB3n/3N2R1/1pNR1R1B/n1n2r1p/2P1P1QR/qp1B3R/Q2bK3 b - - 0 1 legal: proof: h4 a5 b4 c5 f4 b5 d4 f5 dxc5 e5 Qd2 axb4 Qd1 g5 g3 Be7 fxe5 f4 g4 Ra6 Be3 Rf6 Bc1 Rf5 gxf5 g4 Nf3 Kf8 Ng1 Bg5 hxg5 Ke8 a4 d5 f6 Kd7 g6 h5 g7 f3 e3 g3 a5 d4 c6+ Kc7 f7 g2 f8R b3 e6 h4 c3 d3 e7 b2 e8R Bh3 a6 Qf6 a7 Rh6 a8R Rg6 Rd8 Qg5 Rd5 Bc8 Rh3 Bd7 Rff5 Qd8 Nd2 Rf6 Be2 Na6 Nc4 Nc5 Bd2 Na4 Nd6 Be8 Qb1 Bh5 Ra6 Rf7 Bd1 Rf8 Ne2 g1N Rh2 Nh3 Nd4 Ng5 Nb3 Nh7 Nc5 Rf7 Qa2 Qa8 Rc1 Qa7 Be2 Bg4 Qa1 f2+ Kd1 f1N Ke1 Rf6 Rh3 Rf8 Rc2 Qa8 Rh5 Rf4 Rhf5 Ngf6 g8Q Qd8 Qg6 Ng8 Bf3 Bh5 Qg3 Qa8 Bg2 Bd1 Bf3 Qa7 Bh5 Qa8 Bc1 Nd2 Rb6 Nc4 Rch2 Qa5 Bd2 Qb4 Rb8 Qa3 Rbf8 Qa2 R8f6 Kb6 c7 Kc6 c8B Kc7 Rf2 Bf3 Bc1 Bd1 Bd7 d2+ Kf1 Bf3 Rfh2 d1Q+ Kf2 Qd4 Ke1 Bd1 Rg6 Qf6 Bd2 Qg5 Qg1 Qd8 Qg3
b3b2q/5R1Q/5qB1/1p1Pp2Q/NPkb2pr/1NQ3R1/K2bn2B/B3B1B1 b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 a6 f4 Be6 h4 Nd7 a4 Ne5 h5 Qd6 a5 Rb8 f6 Kd7 f5 Rb6 g4 Nf7 axb6 a5 g5 Qh2 g6 Kd6 gxf7 Bc8 h6 Kd7 Ra3 Qxh6 Ra1 Qh2 b4 Kd6 d4 c5 b7 h5 b8B+ Kd7 d6 Kc6 d5+ Kd7 Bd3 g5 Nd2 a4 Bb2 h4 Qh5 c4 Kd1 h3 Kc1 a3 Kb1 g4 Ka2 c3 Ne2 c2 Rhf1 c1B Nc3 Bb7 Nb3 Bd2 Na4 Bg7 f8B Ba8 f7 Bd4 f6 Nh6 Bg6 Nf5 Bh6 e6 f8Q Ng3 f7 Ne2 Be3 Qh1 Qg7 h2 Rad1 Qf3 Rb1 h1B Qgh7 Qf6 Bg1 Be4 Ba1 Bc2 Q7h6 Rh7 f8Q Qh8 Qf6 Bd3 Bf7 Bg6 Qf3 Qf6 Qc3 Qh8 Qg7 Rh6 Qh7 Qf6 Qh1 Rh4 Rf3 Qh8 Rg3 Qf6 Rf1 Bh5 Bg8+ Bf7 Qh5 Be8 Bh7 Qh8 Bg6 Qf6 Kb1 a2+ Kb2 Kd8 d7 Ke7 d8B+ Kd7 Ba7 Kd6 Bh2 Qh8 Bg5 Ke5 Rf7 Qf6 Qh7 Qh8 Be3 Qf6 Bf2 Qh8 Be1 Qf6 Kc2 Qh8 Bb2 a1Q Qhf3 Rh3 Qc6 B4c3 Qc8 Rh4 Qf5+ Kd6 Qg5 Bg7 Bag1 Bgc3 Qgh6 Ke5 Nb6 Qa6 Na4 Qd6 Kb1 Qe7 Ka2 Qef6 Ba1 Bb2 Bb6 Bbc3 Nbc5 Kd4 Qh5 Bb2 Qc7 Bbc3 Qce5+ Kc4 Nb3 Bb2 Qe3 e5 Qf3 Bbc3 Bbg1 Bd4 Qc3+
B2QK3/2Q4P/nQ1B3n/N3p1N1/RQ1R2n1/3qQ3/1kp1qPp1/bn4rN b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 h4 h3 g5 Bc4 a5 Bf1 Rh5 gxh5 g4 Ke2 g3 Ke1 Bg4 hxg4 Ra6 Qc2 Rh6 Qd1 Rh8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 Kg6 e5 Kf7 c5 d4 c4 h6 e3 d6 e2 d5 e1Q b6 h3 g5 a4 h7 a3 b7 a2 d7 h2 d6 c3 g6 c2 g7 Kb3 Nh3 Ne7 g8N Qda5 d8Q Qe4 d7 Nec6 Qf3+ Qe3 Qb6+ Nb4 d8Q Qa3 Ne7 Rg8 Nd2+ Ka4 Nb3 Rg5 Nf5 Qe2 Ke8 Nd5 Qfe3 Bc5 Bg2 Na6 b8Q Bd4 Rd1 h1N Qb8c7 Rg4 Ng5 Nf6+ Kf7 Bc3 Ba8 Qd6 Bd2 Qdd3 Ke7 Bd4 Bb4 Bc3 Bd6 Bd4 Ne6 Rg6 Ng5 Ng4 Ke8 Bc3 Nc1 Bd4 b4 Ka3 b5+ Kb2 Nb3 Bc3 Rac1 a1N Rd2 g2 Ng3 Rh6 Nd4 Nb3 Ra1 Rh3 Ra4 Rh2 Rd1 Nd2 Nb3 Nb1 Rd2 Qe4 Rdd4 Q4d3 Qbb8 Rh3 b6 Rh6 b7 Rh4 N3e4 Ng3 Qb6 Rh3 Qb8c7 Rh1 b8Q Nf5 Ng3 Rg1 Nh1 Nfh6 Rab4 Ka2 Rbc4 Ba1 Ra4+ Kb2 Qb4 Nf5 Q8b6 Nfh6 Na5+
Q1N5/R2q1PqB/4np1B/B5qB/Q1q5/K1BRp2k/p3P1bR/1b3r1N b - - 0 1 illegal: No possible last move
1rb1QKQQ/P2rp2B/k3PbN1/5p2/b4bq1/1N4B1/2R3Qp/qB2R2Q b - - 0 1 legal: proof: g4 c5 d4 d5 c4 a5 cxd5 g5 f4 c4 fxg5 Bf5 h4 Ra6 b4 axb4 g6 Be6 g7 Nd7 g5 Nc5 dxc5 Ra8 g6 Nf6 Kf2 Ne4+ Ke1 Ng5 hxg5 Bc8 Kd2 Kd7 Ke3 Kc7 Kf4 h5 Ke5 b5 g8Q Kb7 a4 f5 e4 h4 c6+ Ka6 c7 c3 a5 c2 d6 h3 d7 h2 Ke6 b3 Kf7 b2 g7 Ra7 e5 Rh4 e6 Rb4 g6 Re4 Bf4 c1B Nh3 Re3 Bd3 Re5 Re1 Kb7 a6+ Kb6 Bg3 b4 Ra2 b3 Nf4 Re4 Nd2 b1Q Rc2 b2 Nb3 Ra8 a7 Rd4 Qf3 Be3 Qh1 Qa1 Qh8 b1B g8B Bd2 g7 Rb8 Ng6 Bf4 Bh7 Rd5 g8Q Bg7 Be4 Bf6 Qe8 Ka6 Kf8 Bb7 c8Q Ba2 Nd4 Bb3 Qc6+ Qb6 d8Q Ba4 Qg8 Bc8 Nb3 Rd7 Qd5 Qe3 Qd2 Qf3 Qdg2 Bb7 Qc8 Qg4 Qc3 Bc8 Qe5 Bh4 Qeh8 Bhg5 Rf2 Bh4 Bb1 Bf6 Rc2
1B2Qn1Q/KnNPR2p/3R2n1/2Bb1qr1/1BN3b1/1pp5/1B3pP1/4kN1B b - - 0 1 illegal: Other
rnR1B3/8/2Rq4/2npB2B/1bQ4P/1BP1qp2/1kp1p1NQ/1N1Q1qBK b - - 0 1 illegal: No proof kernel
3k1N1b/B1p1P1rp/2Bq4/pb1P1NBr/2r2bQB/1p1R1B1N/1Q3R2/5K2 b - - 0 1 illegal: No possible last move, all moves rejected
QnrR2NN/rRqB1p1N/1kqP4/5B2/QN3n2/4KPq1/R3pp1p/6N1 b - - 0 1 illegal: No possible last move
3nn1k1/2QR1rqB/P1b1Nrn1/4B1q1/1b2N2R/2Nb2Pq/K3Br2/1B4QB b - - 0 1 illegal: No possible last move
nB2B3/K5Q1/N1N2k2/1B1P1rR1/1qbnRnrr/1n3R1b/2BB3P/n1b4Q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 f5 Kd4 a5 Kc5 g5 e4 g3 d4 c6 b4 g4 b6 f4 d6+ Kf7 b5 f3 b7 f2 e6+ Kf6 d5 a4 b6 g2 e7 g3 e8B a3 Bd3 f1B Nd2 a2 Ngf3 g1N Nd4 g2 Bc2 Bc4 N2b3 Nf3 Bd2 Rh4 Rg1 Bh6 d7 Ne7 Rf1 Qc7 d8Q g1R Qd7 Rgg4 Rg1 Qf4 e5+ Kg5 e6 Ng6 e7 Kf6 Rc1 a1N Qf1 Qe4 Re1 Nf4 Rg2 Ra4 Qh1 Rg5 Qc7 Rf5 Rg5 Rg4 Bd7 Rb4 e8B Na6+ Kd6 c5 Kc6 Ra4 b8R Rb4 Qa7 Nc7 b7 Qe7 Re4 Na8 Nb5 Qf8 Nc7 Ra4 Na6 Qe7 Re2 Qe4 Na5 Nd4+ Kd6 Rh4 Bb5 Bd7 Rf2 Qe1 Re2 Qb1 Re4 Qb4 Rd8 Ra2 Rc8 Nfe2 Bb3 Bd3 Be3 c4+ Rc5 c3 b8B Rf2 Rg1 Bh3 Nc6 Rf5 Bc1 Bd2 Rg5 Nf4 Kd7 Be3 Kc8 Rg2 Kb7 Rgg4 Bd1 c2 Rc4 Nde6 Rc3 Bc4 Rd3 Bd2 Rf3 Be3 Bd2 c1N Bc3+ Nd4 Bc2 Ncb3 Be1 Bc1 Bd2 Nc7 Kb6 Rh8 Qb7 Na8+ Ka7 Rhh4 Qg7#
RRrNBR1b/B1Pk1Q2/r5n1/1b1n1n2/R1N3P1/5n1q/6nb/N1RrQ2K b - - 0 1 illegal: No possible last move, all moves rejected
1QNR1qkn/BrBq2R1/B1B3rQ/2R3B1/b1r1N3/4r1P1/1b2nr1P/1b5K b - - 0 1 illegal: No proof kernel
3nbq1N/2nbr1Q1/2k3n1/1n4qR/Qb4Q1/RKNP1QB1/2B2rP1/1RQ2n2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 b4 c5 d6 a5 e5 f5 b6 h5 e6+ Kc6 b7 c4 d7 a4 g6 f3 g7 h4 e7 c3 e8Q c2 Nc3 f4 Rb1 f2+ Ke2 a3 Kd3 h3 Kc4 h2 Kb3 a2 Qe7 a1N+ Kb2 f3 Qe3 Rh7 Nge2 Qg5 d8R Bd7 Nf4 Na6 b8Q Ne7 g8Q Nc7 Qc8 Nb3 Qg7 Ng6 Bd3 f1B Qee1 Be8 Qg4 f2 Qde2 Ra4 Ra8 Nc5 Qe3 Nb7 Kb3 Ra1 Ra3 Ra2 Q3e2 Nd8 b5+ Kb7 b6 Kc6 b7 Bb4 b8Q Bd7 Qh8 Re7 Qa7 Be8 Bf5 Bd7 Q2d1 Bb5 Qa4 f1N Qg7 Be8 Bb2 c1Q Bc2 Qh6 Qge5 Qf8 d3 Qe3 Qde2 Qc5 Qg7 Qg5 Qc1 Bd7 Rg1 h1N Qee3 Nf2 Rh1 Be8 Rh5 Ne4 Qeg3 Nd6 Q3f3+ Kc5 Ba1 Bbd7 Bb2 Ndb5 Ba1 Ne5 Ng6 Kd6 Nh8 Ng6 Ne2 Kc5 Be5 Kb6 Nc3 Kc5 Bd1 Rf2 Bc2 Kb6 Bg3 Kc5 Qe2 Kc6 Qef3+
2b2qrN/2k5/b4q1b/b2nqBBR/QB2B3/PK6/QnBPN1br/3Q3R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 g4 c5 f6 e5 f5 b5 a3 h5 d6 c4 f7 h4 g6 c3 g5 h3 f6 c2 g7 e4 g6 b3 Ne2 b4 Bg2 e3 Nbc3 h2 Be4 b2 Nd5 b1Q Bb2 c1B Ne7 b3 Bc3 b2 Bb4 Nc6 Qa4 Qd3 Kd1 Qd4 Kc2 b1B+ Kb3 Bd3 Rb1 Bb2 Rbf1 Qe5 Rf5 Rh6 Rh5 Bda6 Bc2 Qe8 Be4 Kd8 d7 Kc7 Bf5 Bc3 d8B+ Kb8 Bc2 Qd6 Bf5 Ne5 Bc2 Rh7 Be4 Nc4 Bf5 Nh6 g8B Nb2 g7 Ng4 Ng6 Qdc6 Bde7 Kc7 Nh8 Rh6 Bgh7 Qb6 Nf4 e2 g8B e1Q Ne2 Ne3 Be4 Qf1 Bhf5 Nd5 Bgh7 Qd6 Bhg6 Qe5 Bh7 Bg7 f8Q Qg6 f7 Qgf6 Bhg6 Rh7 Qfe8 Bh6 Qg8 Qff4 f8Q Rb8 Rb1 h1B Qe6 Bf3 Rbh1 Bg2 Qfe8 Qf8 Bg5 Qef6 Qeb5 Q4e5 Qd3 Ra8 Qb1 Rb8 Qd1 Ra8 Bc5 Ba5 Bb4 Rg7 Qee8 Rg8 Qeb5 Rb8 Qd3 Rb5 Q3b1 Rc5 Bc2 Rc4 Bh7 Rh4 Qa2 Rh2 Bfe4 Qc6 Bhg6 Qcf6 Bgf5
kR2K3/1rB1Rr1Q/4r2n/bN4qn/bnRRq3/P3B2P/B3rR2/1N2Q1r1 b - - 0 1 illegal: No possible last move, all moves rejected
2KR2QQ/1R6/4n1qB/bq3bBP/8/rBRnN2P/1brNr3/1bBb2Bk b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 c5 d4 f5+ Kd3 g5 Kc4 f3 e4 g4 h3 a4 b6 a3 Kb5 f2 b7 f4 Qe1 f3 Qc3 g3 Qd3 a2 Nc3 g2 Qc4 Na6 b8B+ Nc7+ Kb6 Qg5 b5 Ra3 Nd1 Bf5 Kb7 Nf6 b6 Ng4 Ne3 Ne5 Ba7 Nd3 Rb1 Ne6 Kc8 a1B b7 Bb2 Qb3 c4 b8B+ Ke7 e5 c3 Bb6 c2 d6+ Kf7 d7 Bb4+ d8B Re8 d5 Ba5 Be2 f1B d6 f2 Bd1 Be2 d7 f1B Nf3 g1Q Nd2 Kg7 Rh2 Kh6 Rf2 Qg6 Rf3 Q1g5 Bd6 Bg2 Rg3 Bge4 Bf8+ Ng7 e6 B2f3 Bd6 B3g4 e7 Ne6 Be2 Bgf3 Bf1 Bd1 Bf4 Rh8 e8Q Rh7 Bf6 Re7 Qg8 Re8+ d8R Re7 Qc3 Re8 Nb3 Re7 Bd2 c1R Bc5 Rc2 Bc1 Re8 Nd2 Nb4 Qb3 Bd5 Qc3 Bfg4 Qd4 Ba1 Qc3 Rf8 Bb5 Ba2 Rb2 Bb1 Ng2 Rf7 Rb3 Bb2 Bb8 Qe5 Bfe7 Rf2 Bc4 Re2 Bg1 Bf5 Rgd3 Qd5 Ne3 Qe5 R3d7 Qb5 Rb7 Nd3 Bf8+ Kg5 Qch8 Kh4 Bf4 Qd5 Bg7 Qb5 Bg5+ Kg3 B7h6 Qh7 Nd5 Kg2 Rc3 Kh1 Ne3 Qg6 Bb3
1Q6/1r2QqbK/1qn1Q3/b1NQB1P1/N2b1R2/1b3Pr1/4BB1n/1k1bqRQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 g4 e5 f6 a5 b3 c5 b6 h5 f7 c4 b7 c3 g5 c2 d6 h3 d5 a4 d7 h4 Kf5 a3 Kg6 a2 d6 h2 Be3 c1Q Bf4 h3 Bd3 e4 Nc3 Ka3 b4 Kb2 b5 e3 b6 e2 Be3 e1B Nge2 Nf6 Nf4 Rh7 Rf1 h1B Be2 h2 Ne6 Bd5 Nc5 Bg7 f8Q h1Q Qf7 Ra3 Qe6 Nc6 b8B Qf3 b7 Qb6 d8Q Ng4 d7 Nh2 Be5 Bb3 b8Q Qd2 Rc1 a1B N3a4+ Ka2 Qf8 Bd4 Rc4 Qc1 d8Q Ba5 Qe1 Kb1 Qfe7 Bd1 Qdg8 Rb3 Qd5 Be6 Qgc8 Bg8 Qce6 Rh3 Rb4 Rg3 Rc4 Qf8 f3 Qd2 Qf2 Qe1 Qg1 Qf4 Bf2 Rb5 Qec8 Be6 Kh7 Qf7 Qdd7 Bd5 Rb4+ B5b3 Qd5 Qd8 Qh3 Rb7 Qhe6 Qb6 Rc4 Bb2 Re4 Bd4 Rf4
b4kqb/3N1qN1/nbB1RN2/3Q1P2/r1rB4/Q1rb1RRn/K2R2RP/6b1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 c4 g5 Kc2 d5 Kb3 a5 f4 a4+ Ka2 d3 b4 e4 c5 a3 f6 e3 c6 d4 f5 e2 h6 e1R f7+ Ke7 c7 g4 b6 g3 h7 g2 b7 d2 b5 d3 b6 Qd7 Nh3 g1B Nc3 Bh6 Ne4 Ra6 Nhg5 Ra8 Ne6 Bf4 N4c5 Ra4 Ng7 Re3 Bb2 Na6 b8N Nf6 b7 Nd5 Bd4 Kf8 Bg2 Bg3 Be4 Nf4 Bc6 Nh3 Qb3 d1Q Qd5 Qg4 Rd1 Bh4 Rd2 Bd8 Rg2 Rg8 h8R d2 Rh6 d1B Re6 Be2 Rg3 Qe8 Rf3 Bd7 c8R Bb6 Rd8 Rc3 Rg3 Bd3 Rf3 Be3 Rg1 Rcc4 Rgg3 Bg1 Re2 Bc8 Reg2 Rc3 Rd7 Rh8 Re7 Rh4 Re6 Qh5 Ree2 Qh7 Rd2 Qg8 Nbd7+ Ke7 b8Q Bb7 f8R Qef7 Nf6 Ba8 Rd8 Rf4 Rd6 Re4 Nge8 Kf8 Qa7 Rf4 Ng7 Re4 Ka1 a2 Re6 Rac4 Kb2 a1B+ Ka2 Bb2 Qc7 Rf4 Qce5 Rg4 Qe1 Ba1 Qc1 Ra4+ Qa3 Bb2 Be5 Rgc4 Bd4 Qa7 Ng4 Nb8 Nh5 Rb3 Be3 Bh8 Ngf6 Rbc3 Bd4 Na6 Ng7 Qaf7 Ncd7#
B1r2QN1/3R4/q1RN1n1q/b1K1P1QP/3N2n1/1q1NrQ1k/1qNq1n2/2B2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h6 Ke7 Kf2 Kf6 h4 Kf5 Ra6 Kg4 e4+ f3 Ke3 c5 d4 g5 b4 f5 h5 c4 b6 c3 b5 c2 d6 Qc7 d5 f4+ Kd4 Nd7 e5 Qb7 h7 Nh6 Bd2 c1Q Ne2 f2 Bg2 f1Q Na3 f3 Nc2 f2 Nf4+ Qe2 Re1 Qb8 b7 f1Q b6 Kh4 Be4 g4 Bf3 Rg8 h8N g3 Nf7 g2 Be4 g1N Be3 Qh2 Qf3 Rh8 Rd1 Nf6 Rd2 Bh3 d7 Nhg4 Nh6 Ba3 d6 Rc8 d8N Bb4 Ng8 Ne8 d7 Qb2+ Kd5 Qfc1 Qe2 Bf1 Nf7 Nh3 d8Q+ Kg3 Qd3 Qe2 Rd1 Nhf2 Bd2+ Kh2 Qf3 Rc3 Qf6 Rb3 Qf5 Nef6+ Kc6 Rd3 Be3 Ra3 Rd7 Qd3 Bd2 Qf8 b8N Qh6 b7 Bc3 Ra4 a5 Rc4 a4 Qg5 Qe1 Bc1 Qed2 Bd5 Rb3 Kd6 a3 Nc6 a2 b8Q a1Q Qf8 Rc8 N6d4 Qa6+ Bc6 Ba5 Rc3 Bb6 Ba8 Ba5+ Rc6 Ra3 Kc5 Qdc4+ Kd6 Re3 Nd3 Qca2 Kc5 Qab3 Qe2 Kg3 Nd6 Kh3 Qf3+
2n1NN2/2Q2kB1/1b1R1Pn1/1b4nN/1r1P1bKn/nBq1Q3/Nr6/RNqQ4 b - - 0 1 illegal: No possible last move
2bnBB1B/Q1bnR3/2kP4/N4r2/1Q1qb2B/n1NB4/N1bP3K/2rRqb2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 h5 Kg2 f5 e4 a5 b4 c5 e5 h4 b6 f3+ Kh2 h3 b5 a4 e6+ Kd6 g6 f2 e7 c4 e8B f4 b7 f3 g5 a3 b6 c3 g7 a2 g6 c2 Bb2 c1Q Qb3 Na6 b8B+ Nc7 b7 Nf6 g8N Nd7 g7 Rh5 Ne2 Qe1 Ne7 Rf5 g8Q Ra3 Qc4 Rc3 Nc6 Rc1 Bh8 Qf6 Qg1 Qd4 Ba7 Ne6 Nbc3 Nd8 Qb4+ Kc7 Rb1 a1N Na2 Nc2 Na5 Na3 Nec3 Be7 Bb5 f1B Bd3 f2 Bc5 Bg2 Rb2 f1B Qf2 Bf6 Bf8 Be4 Rg1 Be7 Rg7 Bc5 Rb1 Ba7 Re7 Bb6 Qa4 Kd6 b8B+ Kc5 Bg3 Bc7 Ra1 Kb6 d6 Kc5 Bc4 Bc2 Bh4 Kb6 Bd3 Kc5 Kg3 h2 Rb1 h1B Kh2 Be4 Ra1 Nb5 Qb4+ Kb6 Nb3 Kc6 Qg1 Qc4 Qa7 Na3 Bf2 Rb1 Bg3 Qd4 Bh4 Rb2 Rc1 Rb1 Rd1 Rc1 Na5+
k7/2r1bPqn/1KQr2P1/1QRqnn2/N3R2B/3N4/1BbRRq1q/4Rq1B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kd4 h5 Kc5 e5+ d6 e4 f4 a4 b4 a3 g4 h3 d4 a2 f6 e3 f7 e2 d5 e1N g5 h2 f5 h4 b6 c6 b5 h3 g6 Ra5 f6 Rh7 b7 Ra7 b6 Ng2 Bb2 Be7 f8R Nh4 Bg2 Ra6 Re8 Nf5 Nf3 Rg7 Rf1 h1Q Re1 h2 Re4 Qe1 Nc3 h1Q Na4 Qh2 Bh1 Qef2+ Qd4 Rf7 Rae1 a1Q R1e2 Rh7 Ne1 Rf7 Nd3 Rg7 Kc4 c5 Kb5 Nc6 b8R c4 b7 c3 Ra8 c2 b8Q c1Q f7 Qcf1 Kc5 Nf6 Qb5 Nh7 Rb8 Bb7 Rc8 Rg8 Re1 Ra7 R4e2 Ba6 Re4 Rc7 Kb6 Bh4 R8e5 Be7 R4e2 Re8 R5e4 Rh8 Ra8 Bb7 Ra5 Kc8 d7+ Kb8 d6 Ba6 Bg2 Ka8 Bh1 Qe8 d8B Qd7 Rh4 Qe6 d7 Qd5 Rhe4 Re8 Qb3 Rf8 Rc5 Bc4 Qb5 Bb3 Ka6 Bc2 Kb6 Bd6 Bg5 Be7 Bh4 Rfc8 d8R Rd7 Rd2 Rd6 Rd7 Rc7 R4e2 Bg5 Rde7 Bf6 Qg4 Bg5 R7e4 Be7 Ba3 Qg7 Bb2 Ng3 Qe6 Nf5 Qd7 Ne5+ Qdc6+
b1Q1NqQK/1b2Pq1R/1q1b2k1/NR3N2/2NPnn1B/2bQ1B2/1rb2r2/7N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 Ke4 f5+ Ke5 Kf7 h4 a5 b4 a4 d4 c4 e4 a3 h6 a2 h7 f3 h5 g4 d6 f4 b6 f2 b5 g3 h6 f3 b7 g2 d7 c3 b6 c2 Na3 Ra6 Bg5 c1B Qd3 Ra7 Nc4 Ne7 Be2 f1B Nh3 g1Q Nf2 Qg2 Bh4 Qh3 Rb1 a1Q Rb5 Rg8 h8Q Bd2 h7 Na6 b8N Rg2 b7 Bc3 Nc6 Kg6 b8Q Nd5 N6a5 Qb6 d8N Rb7 Nf7 Qa3 Nfd6 Qd7 Ne8 Qf7 Bd1 Bf5 Qc8 Nc5 Rh3 Rh2 Nh1 f2 Bf3 Rg2 Rh2 Nf4 Rh3 Be2 Rh2 f1B Qg8+ Kh6 h8N Rf2 Ng6 Bg2 Rh3 Bd1 Ne7 Bc2 Rh2 Be6 Rh3 Bd5 Rh2 Rb8 Rh3 Bb7 Rh2 Qg7+ Kf5 Qb3 e5 Ne4 e6 Ba8 Nd5 Bd6 e7 Nf6 Nde3 Qf8 Bh5 Bgb7 Bf3 Qg7 Rh3 Ne4 Rh2 Qh8 Rh3 Ne2 Ke6 Nf4+ Kf7 Qa2 Qg3 Qf6+ Kg8 Qf5 Kh8 Qf8+ Qg8 Qb3 Ng7 Kg6 Nef5 Qa3 Bf6 Qac5 Rh7 Qd5 Bh4 Qdf7 Qc5 Rd8 Qc8 Rd7 Re5 Rc7 Rd5 Rc5 Re5 Rb5 Rc5 Rb4 Rb5 Rb2 Ne8+
NBB2Q1B/1n1R1nn1/P2n1k2/Prr1Qn2/n4R2/N2bn1N1/q5B1/B1b4K b - - 0 1 illegal: No possible last move, all moves rejected
1r1Nq3/3b1q1b/6n1/Rr5B/qQ4bB/2KR1Br1/QP1BBP1k/QN2b1n1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 g4 e5 c4 a5 g6+ Kf6 g7 Kg5 f6 d5 b6 h5 b7 a4 c5 d3 c6 h4 f7 e4 c7 d4 Qe1 a3 Bg2 h3 Bf1 Kh4 g5 a2 g6 e3+ Kd1 e2+ Kd2 h2 Nh3 Rh5 Na3 Qe8 Nb5 Bd7 c8Q Bb4+ Qc3 Ne7 g8B Nbc6 b8Q Ne5 f8B Qf7 g7 N7g6 Qa7 Rb8 Rg1 h1B Rg3 Be4 Nf4 Rg5 Rf3 Rg3 Ne6 Kg4 Qd1 e1R Be2 Kh3 Qa3 Kh2 Be7 Bf5 Nd8 Rh1 Rb1 a1Q Bh4 Qe8 Qaa4 Qa2 Na3 Qaf7 Ra1 Rhg1 Ra2 Rg5 Qdb3 R1g3 Nb1 Ba5 Qcb4 Be4 Kd1 d2 Rd3 Nf3 Kc2 Ng1 Bh7 Re5 g8B Reb5 Ra3 Bef5 Qa2 d1B+ Kd2 Bc2 Qa1 Bh3 Qb3 Bhg4 Qba2 Nh8 Be4 Ng6 Rdc3 d3 B4f3 Rf5 Rcb3 Rfb5 Kc3 d2 Ra4 d1Q Bd2 Bb6 Ra6 Ba5 Ra3 Be4 Rd6 Qa4 Rd3 Qf4 Bb3 Qff7 Bc2 Ne7 Bcd1 Bh7 Qd5 Ng6 Qda2 Bge6 Bh5 Bh3 Bef3 Bhg4 Bde2 Qc2+ Kd4 Qfe7 Bf4 Ra8 Qbc4 Be1 Ra5 Rab8 Qb4 Qa4 Bd2 Q7f7 Kc3
2RRB3/b2R1nK1/b3r3/nN1rQ2r/1B1nRQ1R/q2B1bP1/2PrN3/5kq1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 d5 b4 h5 f4 e5 g3 a5 f6 Kg6 b6 Kf5 f7 e4+ Kd2 d3 Kc3 d4+ Kc4 d2 g6 h4 g7 d3 b7 a4 b5 e3 b6 Ke4 f5 e2 f6 Ke3 Bh3 Kf2 Bd7 e1R Kd4 a3 Nc3 h3 Qg4 d1B Bd2 a2 Qf4+ Bf3 Rd1 Nh6 g8B a1N Bh7 Qe7 Be8 h2 Be4 Qb4+ Ke5 Bc5 f8Q Ra4 f7 Nb3 Kf6 Nc6 b8R Qa3 b7 Nba5 Q8d6 Ba7 Kg7 Rd4 Qdf6 Re3 Nge2 Rd8 Bh7 Re6 Q6e5 Rd7 Ra8 Rd4 b8R Ba6 Rb4 Rdd6 f8R Nf7 Rc8 Rd7 Bf5 Rh5 Nb5 Rdd6 Bc3 d2 Bd7 Kg2 Rfd8 Rd4 Rdb1 d1R Be8 R1d3 R1b3 Rd2 Rc4 Rdd6 Bb4 Kf2 Re3 Kg2 Rc7 R6d5 Bd3 Nd4 Re4 Kf2 Rcd7 Kg2 Rd1 h1Q Rcc8 Qh2 Rh1 Qg1 Rh3 Kf1 Rh4
q2n1r2/5B1K/k3q1r1/2Q1QQN1/5QNn/1nPRbQ2/P2bBb2/1bB1R1r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 b5 Kd3 e5 Ke4 g5 h4 d5+ Kd3 Kd7 f4 Kc6 c3 Kb7 h6 d4 Ke4 b3 c6+ Ka6 f6 b2 f7 d3 f5 b4 f6 g4 h5 g3 c7 b3 h7 g2 h6 Ne7 Bd2 Rg8 h8Q Nbc6 h7 Nf5 Bc1 Nh4 Rh3 Bc5 f8Q Be3 f7 Rg6 Nf3 g1B Qc5 Bgf2 Na3 b1Q f8Q b2 Nc4 d2+ Bd3 Qf6 Ng5 Nd8 Qf3 Qe6 Q8f5 d1R Qhf6 Rg1 h8Q Qc2 Qf7 Qa4 Be2 b1N Q5f4 Bd7 Q7f5 Be8 Qg7 Bf7 Rg3 Bg8 Qge7 Bh7 Qed6+ Qc6+ Qdd5 Rb8 c8B+ Qb7 Bd7 Qa8 Be8 Rc8 Bf7 Nd2+ Kd3 Nb3 Qdd4 Bd2 Ne3 Rb8 Ng4 Bde3 Ba3 Rc8 Re1 Rb8 Bc1 Rc8 Qdd5 e4+ Kc4 Bd4 Rh3 e3 Kd3 Rb8 Qde5 Rc8 Bf1 e2 Rg3 Bde3 Rh3 Nb7 Ke4 Rf8 Qg2 Bd2 Rd3 Bd4 Qgf3 B4e3 Rd1 e1B Be2 B1f2 Re1 Qd7 Qb8 Nd8+ Ke5 Rg7 Kf6 Bg6 Qbe5 Qdd5 Nh3 Qe6+ Kg5 Rgg8 Kh6 Bh7+ Qff6 Be4 Ng5 Rg6+ Kh7 Nd4 Q6f5 Nb3 Rd7+ Bd3 Bd1 Bc2 Rd3 Bb1 Be2
B4rbQ/2n1q3/R4b1B/2N2R2/qk1qPr2/R1bPnBR1/N1b1Q2K/R5r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 Kd6 g4 h5 Kg2 f5 e4 c5 b6 a5 g6 c4 b7 h4 b5 Kc5 g7 h3+ Kh2 f3 d6 f2 b6 c3 g5 a4 d7 f4 g6 a3 Qb3 c2 Ne2 f3 Ra2 Nh6 g8R Bg7 Ra1 a2 Rf8 Bf6 g7 Rg8 Qd3 Qe7 d8R Na6 b8Q Be6 b7 Kb4 Nbc3 Nf5 Rg1 Nc7 Na4 Ne3 Bg2 f1B Nc5 f2 Bf3 Bb3 Rd6 Ba4 Kg3 h2 Ra6 h1Q Rg2 Bc3 Rf5 Qg1 Qc8 Rf8 g8B Ra7 b8R+ Rb7 Bb2 c1B Bd5 Bc2 Rba8 Bf6 Bd4 Bb2 Nc1 Bc3 Qe2 Rb8 Bc6 Rf7 Qh8 Rbf8 Kh3 Rg7 R8a7 Rg4 Ba8 Rf4 Qd3 Be2 Rg3 f1R Ra3 Qf2 R7a6 Rg1 Be5 Bed1 Qe2 Bb3 d3 Bg8 Bd6 Bc2 Be5 Ng2 Bd6 Qd4 Kh2 Ne3 Be5 Bg5 Bg7 Bf6 N5b3 Ncd5 Bh6 Nc7 Rb1 a1Q Nc5+ Qb2 Rba1 Qa2 Rgg5 Qb3 Rg3 Qa4 Na2+
B2Q2nK/1qnrN2n/R1Qr1B1q/k4nrP/1R4N1/2Rb1NP1/1R6/1R1bb3 b - - 0 1 illegal: No proof kernel
7r/4r1k1/QNBR4/2Q1Bq1P/Q1rQ2b1/bn1Pn3/2B1n1Rb/nQ2KN1q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 a5 b4 c5 h4 g5 e5 f5 d6 Kf7 b6 f3 d7 c4 b5 a4 h6 g4 e6+ Kf6 h7 f4 h5 a3 b7 a2 b6 g3 e7 g2 e8B c3 Nh3 g1N Qa4 c2 Bd3 Nh6 Rh2 Ra7 Rg2 Na6 b8Q Ba3 b7 Nf5 Qc7 Ne3 b8Q Ne2 Qc5 Qa5 d8Q+ Re7 Bc6 Bg4 Qdc8 Kg7 Bde4 Qb5 Bf5 Qd3 Bfe4 Qd5 Bb2+ Qe5 Bd4 c1B Bc2 Bcb2 d3 f2+ Kd2 f3 Nf4 f1Q Nd5 f2 Nb6 Qf6 Be5 Qh1 Qcb7 f1R Q7c8 Nb4 Qca6 Rf4 Qbb7 Rc4 Qb8 Nf1+ Ke1 Nd5 Nd2 Nde3 Rb1 a1N Rd1 Nfg3+ Nf1 Nc1 Rdd2 Ncb3 Rdf2 Ne2 Rf4 Kf7 Qbb7 Qf5 Rff2 Ra8 h8Q Rc8 Qd8 Rb8 Qdd4 Rh8 Qcb5 Bd6 Qbc5 Ba3 Rf3 Kg8 Rf4 Qd7 Rf6 Qf5 Q6b5 Kg7 Q7a6 Nbc1 Qbb2 Ncb3 Qb1 Bb8 Bh2 Bf4 Bg3 Bg5 Bb8 Bf4 Be5 Bh2 Rd6+
2rb2Q1/R3Nb2/q4B1R/NQ2Nn1P/P1N4R/K1n5/n4qNb/1b1krB1q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h6 Kd7 h4 Kd6 f4 Kc5 a4 Kd4 h5 e5 h7 b5 f6 c5 d6 g5 d7 b3 f7 e4 f5 e3 f6 b4 Bb5 b2 Rh4+ g4 Qb3 e2 Nh3 c4 Na3 b1N Nf4 c3 Bb2 Na6 Ng2 Qb6 d8N Ne7 Nb7 Nf5 Na5 Be7 f8N Be6 f7 Rc8 Nd7 Rhe8 f8Q Bf7 h8R Ke4 d4 Kf3 Qc4 b3 d5 c2 Qg8 Nb4 Rh6 Na2 Bf6 Nbc3 Kd2 b2 Rb1 c1Q+ Kd3 Qf1 Kc2 e1Q Kb3 Qh1 Qb4 Qee3 Bf1 Qf2 N3c4 Qa6 Re1 b1B Ka3 Bf8 Rd1 Re1 Rd2 Be7 d6 Rd8 Qb5 g3 Nf4 g2 Nde5+ Ke4 Rd5 g1B Rc5 Rf8 d7 Rc8 d8N Bh2 Ndc6 Bd8 Ne7 Kd4 Rc7 Ke4 Nd6+ Ke3 Ng2+ Kd2 Ndc4+ Kd1 Ra7
nb2nR1N/R3rqQ1/N2N4/Q2N2P1/qQPnqrk1/5bB1/4N2K/1b1B1q2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 g4 h5 f4 a5 Kf2 d5 Kg2 e5 b4 a4 b6 e4 b5 e3 f6 Kg6 f7 a3 b7 h4 b6 a2 Bb2 h3+ Kh2 d3 Qe1 d4 Qd2 e2 Qd1 e1Q Be2 d2 Na3 d3 Qa4 d1Q Nb5 d2 Nd6 Bf5 Be5 Rh4 Qa5 Nd7 b8N Ngf6 b7 Qe8 Na6 Qf1 b8Q Ra7 Qbb4 Qa4 Bd1 Nb6 Ne2 Re7 Rg1 Bh6 f8Q Na8 Rh1 Bb1 f5+ Kh7 Bg3 Qf7 Rg1 Ne8 f6 Bg7 g6+ Kh6 g5+ Kh5 Rg2 Rf4 Rf2 Bh8 g7 Kg4 g8N Bg7 Bb3 d1Q Bc2 Qdd5 Bd1 Qe4 Rf3 Qfd5 f7 Be5 Qg7 Qb7 Nb5 Bb8 f8N Qbd5 Ng6 Qf7 Ng1 Qf8 Nh8 Qf7 Kh1 h2 Nd6 Qfe1 Kg2 h1B+ Kh2 Qf1 Rf2+ Bf3 Ne2 Rb7 Ne7 Rd7 Nd5 Re7 Bh4 Bc2 Rb1 a1N Bg3 Nb3 Ra1 Bb1 Qh6 Bg2 Nc8 Qfe6 Qd8 Qad7 Nc5 Rff7 Ra7 Nd4 Na6 Qa4 Qda5 Q6g6 Rf5 Bf3 Nd6 Qg8 Qg7 Rf6 Re5 Rf4 Rf5 Qge6 Rf8 Qf6 Bf2 Qf7 Bg3
1B2n2n/7R/bQ2n3/KBNq2Pb/QPrr4/bNB5/B4BnN/4Rqrk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 Kc3 c5 g4 h5 b3 f5 b6 c4 b7 a4 Kb4 a3 g6 a2 g5 f3 g7 f4 Nc3 h4 Bd3 h3 Ba3 f2 Qh5 f1N Bb2 h2 Rd1 a1R Nh3 f3 Ne2 f2 Qh6+ Nf6 g8B c3 Bb5 c2 Nhg1 c1N Re1 Nd7 Nf3 Ne5 Bc3 Ne3 Bf7 R8a7 b8B+ Rc7 Be6 Rb1 Ka5 Ncd3 Nc1 f1Q Bg8 Ng6 e5+ Ke7 e6 Kd6 e7 Ne8 Bf7 Ba6 Be6 Ndf4 b4 Neg2 Bf7 Bg7 Nb3 Ne6 Bg8 Rh7 Bf7 Nh8 Qg6 Nf6 e8Q Rh4 Qc6+ Ke7 Qb6 Ne8 Qc2 Rc4 Qa2 Be5 Qa4 Bf4 Bg8 Bc1 Bf7 Ba3 d6+ Kf8 d5 Rhd4 d7 Kg7 Bg8 Kg6 d6 Kh5 Bf7+ Kg4 Bg8 Qf6 d8N Kg3 d7+ Qe5 Nb7 Kf2 d8B Qd5 N7c5 Rbd1 Rg1 h1B Bf6 Nh4 Nh2 Bf3 Bfe5 Bh5 Rh1 Kg2 Bg3 Rc1 Bf2 Rcd1 Ng4 Rb1 Rh3 Rc1 Nh2 Kh1 Bf7 Ng2 Rh4 Bg6 Rh6 Bh5 Rh7 Qf3 Bg6 Qd5 Re3 Qe2 Bb1 Rg1 Ba2 Qf1 Re1
Rbr5/1R1qq1N1/q1B1brN1/2P1Q2K/6r1/2bnn1P1/1BbNk3/NN1Q2B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Kg4 d5 c4 a5 f4 h5+ Kh4 a4 b4 d3 f6 Ke6 g6 Kf5 b6 Ke4 c5 a3 b5 d4 f5 d2 g7 Ke3 g3 a2 b7 e4 b6 d3 Ne2 Ra6 Nd4 Bd6 Bg2 Be6 Bb2 Nc6 b8Q Nb4 b7 Ne7 g8N Ned5 Qc1 Qe7 Nb3 Ke2 Rd1 Bf4 Qe5 e3 b8B Rd6 Rg1 d1B Bc7 d2 Rf1 Qe8 f7 Qe7+ f6 Bc2 f8N d1Q Ng6 Nd3 Ba5 Rc6 Bd2 Rc8 Be1 Rh6 Bf2 Qd2 Bg1 Qd1 Qg5 Bb8 Qe5 Qd2 Kg5 h4 Rf4 h3 Rb4 h2 Rb7 h1R Be4 Qf8 f7 Qe7+ Nf6 R1h4 f8N Rf4 Bg2 Rhh4 Bh1 Rhg4+ Kh5 Qd1 Ne4 Rf6 Nh4 Qd2 Nf5 Qd1 Ng6 Qd2 Na3 Qd1 Ng7 Qd2 Rb1 a1Q Ra7 Qa2 Na1 Qc4 Ra8 Qa6 Qd4 Qc3 Qe5 Qd4 Nd2 Qda4 Qg5 Qad7 Qe5 Bc7 Bh2 Bb8 Bc3 Kf2 Rb7 e2 Nab1 Ne3 Bc6 e1B Nf1 Qa7 Bg1+ Ke2 Bb2 Bc3 Nfd2 Qa6 Qd1+
1R1R2k1/b1R1bn2/1B1n1qr1/B1P4N/R2q2P1/Qb4nr/1QR3K1/2qBb1N1 b - - 0 1 illegal: No possible last move, all moves rejected
K1n4k/NB1BN3/r1n3RB/1P1RqP1b/1n3bQ1/b2N4/qnQ1r1B1/3B1q2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 Kg7 Kc4 h5 Kd5 a5 c4 e5 f4 a4 g4 h4 b4 d3 c5 d2 c6 a3 f6+ Kh7 f5 e4 b6 e3 c7 h3 g6+ Kh6 b5 a2 g7 Kh7 f7 d6 b7 e2 g5 e1N Qc2 d1N Nf3 h2 Bg2 Nb2 Nc3 Ra7 Rg1 h1Q Ne5 Qe7 Nd3 Bd7 c8B Be8 Bd7 Nc6 b8N Qh2 Bf4 Ra8 Rd1 a1B Bd2 Qe2 Bc1 Be7 f8Q Bh5 Rd2 Ra6 g6+ Kh6 Qc8 Qf4 Qa4 Nc2 Qc7 Qff1 Qg4 Bg5 Qc8 Bf4 Rd1 Na5 Nc6 Nb4+ Kd4 d5 Kc5 d4 Nd5 Qe5 Na7 Ne7 g8B Rh7 g7 Nac6 Bge6 Rh8 g8B Qfe2 Bgf7 Kh7 Qc7 Nc8 Rd2 Qf6 Ne7 Qfe5+ Bed5 Re8 Rdd1 Kh8 Bg6 Bh2 Bh6 Bf4 Bf7 Q5e3 Bdf3 Qe5+ B7d5 Qf1 Rd2 Qb1 Bd1 Qa2 Ba4 Nd1 Bc2 Bb2 Bb3 Ba3 Ba4 Nb2 Bd1 Qe1 B5f3 Nd8 Bb7 Ndc6 Re2 Qf1 Re5 Qe2 Rd5 Qe5 Qa5 Nd6 Qa4 Nc8 Nf2 d3 Qc2 d2 Nd3 Qb8 Re1 Qc7 Re6 Qb8 Rg6 Qe5 Be2 d1Q Bef3 Nd6 Be2 Qf1 Bd1 Ra4 Kb6 Ra6+ Kc7 Nc8+ Rgd6 Na5 Kb8 Nac6+ Ka8 Qee1 Ng8 Re2 Ne7 Qc3 Rf6 Qe5 Rg6
N5n1/1RqrN3/nbq4N/P2Bk2n/2r3r1/BQ1b4/2NRb1P1/N1K1R1nQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 f4 b5 d4 c5 Kd2 e5 f6 h5 a5 e4 f5 h4 d6 c4 d7 b3 d5 b2 d6 b4 Na3 b1B Nf3 b3 Nd4 b2 Nb3 h3 Nc2 Qc7 d8R h2 d7 Bc5 Ra4 Rh5 Nba1 Rh7 Rb4 Ba6 Rb7 Bb6 Be2 Rh4 Re1 h1N Bg4 Ra7 Qf3 Rh5 Qb3 Ng3 Bf3 e3+ Kd1 e2+ Kd2 Ba2 Bc6 b1R Ba3 Rb2 Kc1 Rh4 Be4 Nh5 Bc6 Re4 Bd5+ Re6 Re8 c3 d8Q Bd3 Qc8 Nc6 Rd8 Nb4 Rd6 Na6 Qd7+ Kf8 g6 Re4 Qh7 Rc4 f7 Ke7 g7 Bb1 Rd7+ Kf6 f8N Ke5 f6 Rg4 f7 Ba2 Qc4 Rb4 Qb3 Rbc4 Ne6 Qc6 f8N Qc7 Rg1 e1N Rd6 Nf3 Re1+ Be2 Rd8 Qc6 Nc7 Bb1 Na8 Ng1 Rd6 Ng3 Qh1 Nh5 Bf3 Qc7 Rd2 Qc6 Bd5 Qc7 Nd4 Bd3 Ndc2 Qc6 Rb8 Rd7 Ng6+ Kf6 Ne7 Ke5 Nb4 c2 Rb7 Ngf6 g8N Qc7 Nh6 Ng8 Kb2 c1Q+ Ka2 Qc3 Nbc2 Qb4 Kb1 Qbd6 Kb2 Qdc6 Kc1
n1q3r1/1QN5/qN1n2P1/n1NrNPkb/2qn1RRb/1B4b1/2B2B2/K2N2Q1 b - - 0 1 illegal: No possible last move
2BB1Qqk/2q2nBr/4PP1R/R1n1b2K/2nr1NRB/2rnq3/6b1/N4QB1 b - - 0 1 illegal: No possible last move
1r4R1/kb2B3/qP3qBb/N1brQn2/1b1Q1QP1/nNq2B2/2QQ1K2/R1r5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 c5 b4 Kc7 g4 Kb7 g6 a5 e5 f5 e6 h5 g7 c4 d6 c3 e7 c2 e8B a4 b6 a3 d7 h4 d5 a2 d6 h3 Bh5 h2 Qd3 f3 Bh3 f4 Kf1 f2 Ba3 c1B Nf3 Qf6 d8Q Qc3 d7 Na6 Qc2 Nh6 g8Q Nc7 Qf7 Nf5 Nfd2 Nb5 Nb3 Bc5 Bg6 Rb8 N1d2 Rh5 Bg2+ Ka6 b7 Ka7 Nc4 Rg5 Rg1 h1R Nca5 Rgh5 Rb1 a1B Bf3 Bab2 Qg5 Bd2 d8Q Bbc1 Qd4 Be1 Bb2 Na3 Qfg7 Bed2 Qge5 Be1 Ke2 Bed2 Re1 Rg1 Ra1 f1Q+ Kd1 Qa6 b5 Rgh1 Ke2 Rg1 Kf2 Rgh1 Bd5 f3 Qef4 Rg1 Re8 Rd1 Rg8 Be1+ Kf1 f2 Bf3 Bcd2 Qfe5 Rc1 Qgd8 Bh6 Qg5 Nh4 Qgd2 Rg5 Qef4 Rd5 Qfe5 Nf5 Kg2 Qc4 Bc3 Qd3 Bb4 Qc3 Kf1 Bb6 Be7 Bc5 Kg2 f1Q+ Kh2 Qh3+ Kg1 Qh4 Kg2 Qhf6 Kg1 Bh4+ Kg2 B4g5 Kf2 Bf8 Qef4 Bgh6 Qb2 Rd8 Nc4 Bb6 Nca5 Ra8 Qbc2 Rd7 Bd8 Bb4 Be7 B6c5 Ke2 Kb6 b8Q+ Bb7 Qbc7+ Ka7 Qce5 Rd5 Kf2 Rb8 b6+
3k3q/4B1n1/KPR4q/nP3R1R/1b1n3q/Q2rQb1B/Q2r1b1Q/1QN2nN1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 c5 Kd3 a5 Kc4 e5 b4 h5 g4 e4 d4 a4 f4 a3 b6 h3 Kb5 h4 d6 h2 f6 h3 g5 c4 d5 c3 g6 c2 g7 e3 f7+ Kd7 f5 e2 f6 e1B Nc3 a2 Ba3 c1N Nce2 Ne7 g8Q Nb3 Rc1 a1Q Rc6 Nf5 Qb1 Bf2 Nc1 Na5 Bg2 Be7 f8R Bb7 f7 Ng7 Qgh7 Ra6 Qhc2 Qf6 Qca2 Qh6 Bf1 Qe8 Bg2 Kd8 d7 Ra7 Bf1 Na6 Bg2 Nc5 Bf1 Ncb3 Bg2 Bc8 Bf1 Rb7 Ka6 Nd4 b5 Bb4 Bg2 Rg8 Bf1 Ngf5 Bg2 Rg3 Bf1 Ng7 Bg2 Ke7 Bf1 Rd3 d6+ Kf6 d8Q+ Qe7 Qc7 Bg4 Qbb3 Bf3 Qbb1 Qh8 Qb8 Rd7 Qc7 Rd8 d7+ Qe6 Qe5+ Ke7 Qe3 Qh4 Rh8 Rd2 Rh5 Rd3 Rf5 Rd2 Qf4 Qeh6 Qg3 Rf8 Qf4 Kd8 Qe3 Re8 f8Q Qh8 Qeb3 Q4h6 Qd6 Re3 Qde6 Red3 Qe3 Bc3 Bf8 Bb4 Qba3 Bg4 Bd6 Bf3 Be5 Ke7 Bf6+ Kf8 Rd5 Kf7 Nge2 Kf8 d8Q+ Kf7 Rg1 h1N Rgg5 h2 Qd6 Ng3 Rh5 h1Q Ng1 Qh4 Bh3 Nf1 Qh2 Kf8 Be7+ Ke8 Rdf5 Kd7 Bd6 Kd8 Be7+
1n1B1QB1/1Rb4P/4P1RN/1b1K4/QN1bn2q/1rRqQQ2/Q1q2r2/1rqk4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kc4 b4 g5 d4 a5 d6 c5 d5 a4 d7 a3 b6 f3 d6 f6 b5 f2 h6 g4 h5 g3 h7 g2 b7 a2 b6 Nc6 b8Q Ra6 b7 Bg7 h6 Kb4 Nh3 g1R Qa7 f5+ Kd5 c4 b8R+ Rb6 e4 c3 e5 f4 Qf3 Kb3 Bc4+ Kc2 Rb7 f1Q Nf2 Rg3 Ng4 Qe2 Rh3 Qh4 d8Q Bd7 Na3+ Kd1 Qf8 c2 Qa4 Rb1 Qe7 Be8 d7 Nb8 d8Q Bb5 Qdf8 Bf6 Qc5 Bd8 Qce3 Bc7 Bd2 Rg2 Ba5 Rf2 Qf7 Rc1 Rb1 a1B Rg3 Bc3 Rb3 Bd4 Rc3 Rb1 Bb6 Rb3 Qe6 c1Q Nc2 Rb1 Nb4+ Rb3 Bc5 Qc2 Be7 Qd3 Qf7 Qc2 Bd8 Nf6+ Ke6 Rf8 h8Q Ne4 h7 Rg8 Nh6 Rg6+ Kd5 Rb6 Qg4 f3 Qhf8 Qed3 Qgf5 Re2 Q5h5 f2 Qhf3 f1Q Rg6 Qfe1 Qa2 Qed2 Q7e8 Qdc1 Qd7 Ra6 Qc6 Raa3 Qa6 Rb1 Qa4 Rab3 Ke6 Nd2 Bd5 Ba5 Kd6 Bab6 Bg8 Bc7+ Kd5 Ne4 Q3f5 Rg2 e6 Rf2 Qff3+
1RR4k/Qb1NrP2/1bn2PbK/r2q2N1/3Q2qB/1QnB4/1Q2q2Q/3q1nB1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kg7 Kf4 a5 Kg5 c5 f4 e5+ f6+ Kf7 b4 h5 g4 c4 d4 a4 f5 e4 b6 a3 d6 e3 d5 e2 b5 e1N b7 c3 d7 c2 d6 a2 b6 h3 Na3 h4 Qd2 h2 Nc4 h3 Rb1 a1Q Nf3 Qa4 Bd3 Qe7 d8Q Ra7 d7 Na6 b8Q Rh7 b7 Qe2 Nb6 Bc5 Rb2 Ra8 Qa7 Ne7 b8Q Ng2 Re1 h1B Qh2 Rg7+ Kh6 Ne3 g5 Bb7 Qh8 Qd4 d8B Nc7 Nd7 Nf1 Nf8 Qg4 Rd1 Be4 Rb8 Nc6 Rc8 Bb6 g6+ Ke8 Rb8 Nb5 Ng5 Re7 g7 Nc3 g8Q Bhf3 Ba3 c1Q Qb2 Qa1 Rd2 Qad1 Rc2 Bg2 Qgb3 Bh1 Qg3 h2 Bc5 Bhg2 Qgc7 h1Q+ Qh2 Bgf3 Bg1 Bg2 Qb7 Ra5 Qa7 Bgf3 Qhg8 Bg2 Qgc4 Bgf3 Qd4 Qhg2 Nge6 Kf7 Rc1 Kg8 Ng5+ Kh8 f7+ Ne5 Rc2 Bb7 Rc1 Bfe4 Rc2 Na2 Rcc8 Nc3 f6 Bg6 Bc7 Nc6 Bg3 Qg2e4 Bh4 Qd5 Nd7+
R1K1N2b/2P4Q/2b1r2b/qBq2BR1/n3BQ1r/3nq1N1/2n1Bk1P/B1n1N3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 c4 a5 e4 d5 b4 d4 b6 d3 c6 g3 c5 a4 b5 a3 c7 g2 c6 a2 b7 d2 b6 Ne7 Bb2 Rh4+ Kg5 f4 Qc2 d1N Ne2 g1N Nd2 f3 Ng3 f2 Be2 f1Q Nf3 Nf2 Ne1 Nd7 b8N Ra6 b7 Nc5 Nd7 Nf5+ Nf6 Bd7 b8Q Na4 c8B Qa5 Ne8 Nd4 c7 g6 Qb4 Nd3 Qbd2 Qf3 Qf4 Rb6 Bb7 Bc6 Bc8+ Ke7 Bf5 Qe3 e6 Bg7 Qb1 Nc2 e5 Bh8 Bf1 Ne2 Rg1 Nec1 Be2 Rh3 Kg4 g5 Be4 Qec5 Kf5 g4 Bd4 Rh4 Rg2 Kf8 e7+ Kf7 Bb2 Bg7 Rg1 Bh6 Bc3 Kg8 Ke6 Qe3 Kd6 Kh8 e6+ Kg8 Nf6+ Kg7 e8B Ra6 e7 Rb6 Nf1 g3 Bd7 g2 e8B Ra6 Ng3 Rb6 Rf1 g1Q Bdf5 Qgf2 Ke7 Qec5+ Kd8 Qfe3 Bed7 Kf7 Kc8 Ke7 Qg5 Kd6 Rg1 Ra6 Bde6 Rb6 Bc4 Ra6 Bb5 Rb6 Bd2 Ke5 Ne8 Ra6 Qf6+ Kf4 Bc3 Rb6 Qf7 Ra6 Qh7 Rb6 Qb4 Ra6 Rb1 a1B Qc4 Bb2 Ra1 Rb6 Bb4 Bh8 Bc3 Bd5 Ra2 Re6 Ba1 Bc6 Qd4 Qf3 Qe5+ Ke3 Qf4+ Kf2 Nf1 Bf6 Rg5 Bh8 Ng3 Qa6+ Kd8 Nb6 Ra5 Na4 Bh3 Qab6 Ra8 Qa6 Bhf5 Qa5 Qg4 Qf4 Kc8 Qfe3 Qf4+
4RQKN/kbP1bRBr/n2N2r1/2R1q1n1/3q4/P2bRBB1/Q1R5/1rb3n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 e5 Ke3 b5 Ke4 g5 Kd5 d6 h4 Kd7 c4 Kc7 f4 Kb7 f6 g4 c6+ Ka7 h6 e4 f5 b3 h7 e3 f7 e2 f6 e1B c7 b2 h5 g3 a3 g2 h6 b4 c5 b3 c6 Nd7 Ke6 d5 Nc3 b1N Nh3 g1Q Qd2 b2 Rh2 d4 Ng5 d3 Nce4 Bb7 c8R Qh1 Bg2 Bd6 f8R Nb8 Kf7 Nc3 Bf3 b1B Qa2 Na6 Bf4 d2 Bg3 d1R Rc2 Be7 Nd6 Ne2 c7 Qd7 Rce8 Bd2 Rc5 Bf5 Rac1 Bd3 R1c2 Rb1 Kg7 Qh5 f7 Bd8 Re3 Ng1 Rfe8 Be7 f8R Bc1 Rf6 Rb8 Ngf7 Qd5 Rf4 Nf6 Rf5 Qe5 Rf4 Rf8 h8Q Ne4+ Rf6 Rd8 h7 Ng5 Qg8 Qa4 Nh8 Rd7 Qgf7 Qe6 Rff5 Qd4+ Qf6 Rf7+ Kg8 Qee5 Qg7 Rf6 Qf8 Rh6 Rf7 Re6 Ng6 Rf6 h8B Re6 Bg7 Rf6 Nh8 Rh6 Bg4 Rh7 Ne4 Rd6 Bf3 Rg6 Nd6
b2n3Q/1RPQ3q/Q2rb2N/r3Rnb1/P5Q1/KQ4n1/1rr4N/kRB3qB b - - 0 1 illegal: No possible last move
k1rb1qN1/2Q1rr2/2RQ1NrN/Q1Knrb2/R2B1PN1/4Nr1B/2P1nn2/8 b - - 0 1 illegal: No possible last move, all moves rejected
qNRB1b2/NR1K2Q1/B3P2n/1N4r1/Q4rrQ/1NP1N3/b1r1r1nn/1r4k1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 a5 h4 g5 b4 a4 e6 a3 h6 d3 e4+ Kd4 e7 a2 e8N d2 c3+ Ke3 e5 Kf2 b6 g4 h7 g3 h5 g2 h6 Nc6 b7 Ra5 Ne2 g1R b8N Rg4 Qa4 d1R b5 Re1 Ng3 Re2 Rh4 Kg1 b6 d5+ e6 Bb7 Bg5 Ne5 Nc7 d4 Nc6 d3 Nb5 d2 Nca7 d1N Nd2 Bd5 b7 Nf3 b8N Nh2 Rb1 a1R Nb3 Ne3+ Ke5 f5 Be7 f4 Nf5 Qc8 Kd6 Ng2 Ne3 f3 Rh3 Qa6+ Kd7 f2 Bd8 Rc2 Bd3+ f1R Rh5 Bc4 Rc5 Raa2 Rb2 Rff4 Rc8 Ra1 Be2 Rb1 Bf1 Ne7 Bd3 Nf5 Be2 Rhg8 h8Q R8g5 h7 Nh6 Qg7 Bd5 h8Q Re5 Nac6 Qa8 Nca7 Bc4 Qb4 Ra2 Qa4 Reg5 Bd3 Nf7 Qh4 Nh6 N5d4 Bd5 Ba6 Re2 Ndb5 Bc4 Rd2 Rc2 Rd6 Bd5 Rb6 Bc4 Rb7 Bd5 Nd2 Ba2 Nb3
Qbn1bn2/1k6/2b1B2Q/1bBRr1N1/n1R1nqR1/1P1Nn2r/2PR4/NK4R1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 g5 h4 e5 f4 a5 b6 d5 b7 Kd7 h6 Kc7 h7 e4 h5 g4 h6 e3+ Kd3 e2 f6 e1N+ Kd2 a4 f5 d3 f7 g3 f6 d4 Qe2 g2 Qe6 a3 Rh5 a2 Qd5 Bd7 Nh3 g1N Nf4 Ne2 Bh3 Ne7 Be6 Nc3 Qa5+ Kc6 Re5 Ng2 Rd5 Na4 Kd1 d2 Nd3 Bg7 f8Q Nc8 f7 Be5 Qg7 Bg3 f8R Qg5 Rf4 Be8 Rg4 Nd7 b8R Qf4 Rb4 Nf8 Qf6 Ra6 Rc4+ Kb7 Qg5 Rb6 Qg6 Rb3 Qg5 Rg8 h8N Bh2 Qf6 Rg5 h7 Re5 Qh6 Bb5 Nf7 Ne3+ Ke2 d1B+ Kd2 Rc3 h8R Bf3 Rhg8 Be8 Rg1 Bg2 Rg4 Be4 Ng5 Bg2 Rd8 Bgc6 Rd5 Bb5 Ke2 Rb3 Nd2 Bec6 Rb1 a1N Rd1 Ra3 Nb3 Be8 Bd2 Bg3 Bb4 Bbc6 Ndc1 d3+ Kd2 Bh2 Bc5 Bb5 Ke1 d2+ Ke2 Bec6 Nd3 Bg3 Rg1 d1B+ Kd2 Be8 Rc1 Bf3 Rcd1 Bh2 Kc1 Be4 Rd8 B4c6 Rd2 Bg3 Kb1 Bh2 Nbc1 Nb3 Rd5 Bg3 Bb4 Nbc5 Nb3 Ne4 Bc5 Bh2 Na1 Nf5 Nb4 Rh3 b3 Ne3 Nd3 Bg3 Rdg2 Be1 Re2 Bc3 Rd2 Bb4 Bb6 Bd6 Bc5 Bb8 Qa8+
2B2RQb/3r1nq1/nNk2b2/n2Rb2P/NR1B2r1/1N1PR3/1Kb4R/3b1nQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 b4 a5 h4 c5 d6 f5 b6 g5 e5 f3 h6 a4 e6+ Kc6 h7 c4 e7 c3 e8N a3 d7 g4 h5 a2 b7 g3 Nd6 f4 Nc4 g2 Ba3 c2 Ne2 c1N Bb2 g1B Nec3 Ra4 Nb6 Nh6 Rh2 Bg7 Bh3 Na6 b8R Qg5 d8R Bg4 Rd5 B1d4 Rf8 Nf7 d3 f2+ Kd2 f1N+ Kc2 f3 Nd2 f2 Nb3 Bdf6 Rb1 a1B Qe1 Rg8 h8Q Ra3 Qh7 Bh8 Nca4 Qg7 Bd4 Bf3 Rb2 Bd1+ Kb1 Ra2 Re2 Rc2 Bc8 Bb2 Na1 Nb3 Re3 Na5 Nb3 Re2 Ka2 Bc2 Qd1 Re1 Qg4 Ba1 Qg1 Re2 Bc5 Bae5 Bd4 Re1 Kb2 Re2 Rf3 Re4 Re3 Rg4 Qg6 Nd2 Qh7 f1B Qg6 Be2 b5+ Kc7 Qg5 Nf1 Qg6 Qh6 Qh7 R8g7 Qg8 Bf3 Nd7 Be2 b6+ Kc6 b7 Bed1 b8R Rh7 Rb7 Qg7 Ndb6 Qh6 Na1 Ng5 Na8 Rd7 Nb3 Nf7 Rb4 Qg7 N8b6
N1Q1K3/nq1r1n2/3N1RQb/R1P2BR1/RB1bn1b1/nP1b4/5b2/r1R2Nk1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 g5 h4 a5 c4 d5 b3 d3 b6 a4 f6 d4 f5 a3 h6 a2 f7 g4 h5 g3 b7 d2 f6 Ke3 h7 Kf2 h6 d3 Ne2 g2 Nf4 g1B Qg4 d1N Ne6 d2 Bd3 Qe8 Ba3 Ra7 Qg6 Qd7 Bf5 Nc3 Bb4 d1B Nd2 Be2 Nc7 Nc6 b8R Bd3 Na8 Qb7 Nf1 Ne4+ Kd5 e5 c5 Bg7 f8R Ra4 Rc1 a1N f7 Nc2 Rh5 Ra1 Rg5 Na3 Re8 Bd7 f8R Bc8 Re6 Na7+ Rc6 Bd7 Rf6 Bf8 Bg4+ Kg2 Bf5+ Kh1 Rc8 Bd4 Rc7 Bc8 Rd7 Bg7 Ke6 Bf8 Kf7 Bg7 Bg4 Kg1 Ke8 Bf8 Rd8 Be6 Bh3+ Bg4 Ra6 Nc8 Qg7 Nc3 Nb6 e4 Rf7 e3 Bg2 e2 Qg6 e1B Be4 Nab1 Ra4 Na3 Rf6 Bef2 Rdd6 Na7 Rde6 Nc4 Na8 Na3 Rea6 Bg7 R6a5 Bf8 Rgf5 Bg7 Bc6 Ne4 Bd7 Bg3 Rh5 Bge2 Bg4 Bgf2 Re5 Bf8 Rh5 Ne7 Rg5 Rg8 h8N Nf5 h7 Rg7 Nf7 Nh6 Nd6 Rf7 h8Q Rd7 Bf5+ Bg4 Qhg8 Bg7 Qd5 Nf7 Qc6 Bh6 Qc8
Nq1B4/4R3/n2r1N1P/1Qnr1nKR/2BQ1NNP/2n3N1/4r2r/2Bkbb1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 b4 Kd4 d6 g5 e5 c5 d3 a5 e6 f5 e7 a4 e8N g4+ Kg2 a3 h3 a2 d7 f3+ Kg3 f4+ Kf2 c4 b6 c3 b7 c2 b5 Bb4 b6 Ra5 Nf6 Rd5 Nc3 Ne7 Nce4 Na6 b8Q Nf5 Ng3 Kc3 d4 Qf8 Rb1 a1N d8B Nb3 b7 Nbc5 Bc4 Bd7 Qe5 Bb5 b8N Qd6 Nbd7 Qb8 Nb6 Rh7 Ba3 c1R Na8 Rc2+ Qde2 Rhd7 h6 R7d6 Bc1 Rd2 h4 Kc2 Nh3 Ba5 Re1 Bc3 Kf1 f2 Kg2 f1R Nf2 Rh1 Ra1 Bb4 Ra5 Rh3 Qf1 Rh1 Re3 Re2 Qg1 Rh3 Qe8 Be1 Re7 Rde5 d5 f3+ Kf1 Rh2 Qd7 Rc6 d6 Rd5 Qb7 Rb6 d7 Rbd6 Qb6 Ba4 Qb5 Bb3 Nh3 Kd1 Nf4 Ba4 Qe3 f2 Qe5 Bc2 Qc3 Bd3 Qd4 Rh3 Kg2 Rh1 Nge4 g3 Kf3 f1R+ Kg4 g2 Kg5 g1N Ng3 Reh2 N4h5 Rf4 Ng4 Ne2 Nhf6 Nc3 Bb6 Rh3 d8N Rf2 Ne6 Re2 Nf4 R3h2 Bd8 Re4 Rh7 Nb3 Qa4 Ne3+ Kg6 Rb5 Bd2 Bf1 Re7 Rh5 Qe8 Ree5 Rd5 Nbc5 Qb5 Rhf5 Ne6 Rff2 Bc1+ Rd2 Nf4 Re4 Rh5 Nf5 Qe3 R2d5 Kg5 Ree5 Qf2 Re2 Qd4+
2R5/NQ2r1b1/bP2b3/3b4/2n1QBQq/bk1R1K1n/1B1rr1Pr/BNBB4 b - - 0 1 illegal: No possible last move
2nr1k2/PRK1R3/1N1Q1rP1/Nb1RR2q/1n2QbR1/n5b1/B1b1bB2/1n3N2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 h5 Kd3 e5 Kc4 c5 Kb5 c4 f4 e4 d4 e3 a4 b6 g4 c3 g6 c2 f6 h4 g5 b3 f5 b2 d6 e2 d5 e1B g7 h3 a5 h2 f7+ Kd7 f6 Qe8 a6 Bf2 a7 Bh4 Qd3 Qe5 Nd2 b1B Ngf3 Nh6 g8R Bg7 f8N+ Ke8 Nb3 Nf7 Na5 Rh6 Qe4 Bg4 Bc4 Na6 Kc6 b5 Re1 h1B Nh2 b4 Ba2 b3 Nf1 b2 Be3 c1N Bf2 Bc2 Rb1 Nb4+ Kc7 Be2 Nd7+ Bf8 Rg6 Rd8 Nb6 Nb3 Rg8 Nd2 g6 Nc4 Rg7 Bg3 Rh7 Rh2 Rh4 Nh8 Rg4 Bh6 f7+ Kf8 Nd7+ Kg7 f8R Bhf4 Rf5 Nf7 Nb6 Kf8 Rh5 Qh8 Re5 Na3 d7 Qh5 d6 Bhf3 Re7 Bb5 Re3 Bfe2 Re5 Re8 d8R Rh1 d7 Nd6 Rc8 Rh4 d8Q Rh3 Rb8 Nc8 Rd1 b1N Rd5 Rh4 Qd7 Rd8 Rb7 Rh2 Be1 Rf2 Qc6 Rf3 Bf2 Bg5 Qd7 Rf4 Re7 Rf6+ Qd6 Bh6 Qf3 Bg5 R3e5 B5f4 Qe4
3Q1b2/qQ1n1Q1b/Q4r1n/4N1B1/1Nnb4/1rkPR2P/2rb1QBK/1R4nN b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kd7 Kf2 Kd6 Kg2 Kc5 b4+ Kd4 d6 g5 h3 a5 b6 e5 b7 c5 b5 g3 d7 a4 f6 c4 d3 a3 f5 e4 f7 c3 f6 c2 b6 g4 Nd2 e3 Qe1 e2 Qd1 e1B Ngf3+ Kc3 Kg1 g2 Rb1 a2 Ne5 a1B Kh2 g1N Bg2 Ra6 Nf1 Nh6 Ng3 Qc7 d8Q Nd7 b8Q Qa7 Bg5 c1R b7 Bd2 Qa4 Rc2 Qbc7+ Rc6 b8N Rg8 Qa2 Rg6 Qb7 Rb6 Nbc6 Rb3 Qaa6 Bb2 Qbb5 Bb7 Nb4 Be4 Re1 Ba1 Re3 Bf5 Be4 Bb2 Qbb7 Nf3+ Kg2 Ba1 Rb1 Bb2 Nh1 g3 Nc4 Nfe5 Kg1 g2 Kh2 g1N Bg2 Bg7 f8Q Ba1 f7 Rf6 Qg8 Bh7 f8Q Bb2 Qc5 Bf8 Qf7 Ba1 Na5+ Nc4 Nac6 Bb2 Ne5 Ba3 Qca5 Bc5 Q5b6 Bd4 Nbc6 Bf8 Nb4 Rf1 Qbf6 Rf2 Qff3 Rf1 Qe2 Rf6 Qf2
qb1N1K2/N1Qb4/4B1Q1/1Pn4N/bRn3k1/PR2n3/r2QrB1r/N2N2bn b - - 0 1 illegal: No possible last move
4k2n/r3N1n1/R2NNR1n/P1N1r2n/1qQ1bQ2/2b5/B1b2K1P/brR1N1B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 g5 d4 b5 f4 c5 a5 e5 f6 g4 f5 b3 h6 b4 d6 e4 h7 c4 d5 e3 Nc3 g3 Rb1 e2 Nb5 b2 Bg2 c3 Bg5 b3 Bf4 c2 Be3 c1N Qc2 Nc6 Qc4 Nd4 Nf3 Bb7 Bg1 Qb6 Bh3 g2 Kf2 Nh6 Ne1 Rg8 h8N Rg5 Ng6 Bg7 Ne7 Ra7 Bg4 Qc5 Bh3 Qb4 d7+ Kd8 f7 Ne6 f6 Re5 Nd6 Nd3+ Kg3 Ndf4 Kf2 Bc6 f8N Nh5 f7 Bf6 Rc1 b1B Bf5 Neg7 Be6 Kc7 d8R b2 Re8 Bc2 Nd7 b1R Nc5 Bb7 Rb8 Bc6 Rb6 Kd8 f8N Bb7 Ra6 Ba8 Nb5 Ke8 d6 Bb7 Qf4 Bc6 Ba2 B6e4 Ned3 e1N Nfe6 Nf3 Ne1 Nh4 d7+ Kf7 d8Q Ng6 Rc6 Nh8 Qd3 Ke8 Qe2 Rg5 Ra6 Bc3 Qd3 Re5 Qc4 Bb7 Qf3 Rd5 Ke3 Bb3 Bf2 Bc2 Rf1 Re5+ Qfe4 Ba8 Bg1 Bd5 Ke2 Ba1 Qe3 Bde4 Rf6 Bc3 Qf4 Ba1 Bd4 g1B Kf1 Be3 Ke2 Bd2 Bg1 Bdc3 Kf1 Bf5 Kf2 Bfe4 Nd6+
R1k5/2b4q/Br1PnBR1/R1N1Q3/1bbrr1r1/1b2Nn1n/1Q1Q1RP1/RK6 b - - 0 1 illegal: No possible last move
1Q1r2Q1/1rq1b2B/2kPN2K/nP3Nn1/n4nNN/N2bQR2/1B1r2Rr/b7 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Kg4 a5 Kh5 c5 g4 h3 b4 h2 d4 h6 f4 a4 f6 c4 d6 e4 f5 e3 d5 e2 g5 e1R f7 c3 b6 c2 b7 a3 f6 a2 g6 Na6 b8Q Re7 g7 Nc5 Qf3 Ba6 Bd3 Qc7 Na3 Na4 Bh7 Bd3 Bb2 c1N Qe3 Ne2 Rf1 a1B Rf3 Ra6 Nh3 Nf4+ Kh4 h5 Kg5 h4 Rg1 h1R Nf2 h3 Rg2 h2 Ng4 Nh6 g8N Nf5 N8h6 Nd4 Nf5 Nc6 Bc3 Na5 Bb2 Nh3+ Kh5 Ng5 Kg6 Rd1 Kh5 h1N Kg6 Bh6 f8Q Nf2 f7 Rd2 Qg8 Bf8 Kh5 Re8 Kg6 Be7 Kh6 Rd8 f8N+ Ke8 Ng6+ Kd7 Ngh4 Ra7 Qbb6 Rb7 Qb5+ Kc8 d7+ Kb8 d6 Nfh3 Qbb6 Nf4 Qb5 Rf8 d8N Ka8 Nc6 Rd8 Ncd4 Kb8 Qbe8 Ka7 Qef8 Kb6 Ne6+ Kc6 Qe8+ Rd7 Qa8 Rd8 Qb8 Bc4 Kg7 Ba6 Bg6 Rh5 Bh7 Bd3 Ng6 Rh1 Ngh4 Rh3 Kh6 Rh2 b5+
5K2/R5P1/1nNQ1nk1/n2B4/1B1bNQb1/b1rR1r1b/R3NRP1/r1r3Rq b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 f5 d4 Kf7 e4 a5 b4 c5 b6 c4 b5 h4 e5 h3 e6+ Kg6 e7 a4 e8R h2 d6 c3 d5 a3 b7 a2 d7 c2 d6 Bg7 b6 Ra6 Nd2 Qc7 d8R Bd4 d7 Qc4 Re7 Nf6 Ba3 c1B Bb4 Ba3 Ne2 Qc1 Rg1 h1R Rf8 Ra7 d8N Nbd7 b8Q R8h7 b7 Nb6 Re3 Rc7 Ne4 Rc3 Rd3 Ra8 Nc6 Be6 Rb1 a1N Rb2 Nb3 Ra2 Na5 Qd2 Qe1 Qd6 Rc8 b8R Rc1 Nd8 R8c3 Nc6 Qh4 Qe3 Ra1 Rb7 Qh7 Kf2 f3 Kg3 f2 Ra7 f4+ Kf3 Bh3 Qc1 Kh5 g6 Qh6 g7 Kg6 N2g3 Qh7 Be2 f1B Bd1 Nc8 Bb3 Nb6 Bd5 Qh4 Qe3 Qh8 Ne2 Rac1 Kf2 f3 Kg3 f2 Kf4 Ra1 N2g3 Be2 Rff7 Beg4 Ne2 Bc5 Ke5 f1R Qd4 Rf5+ Ke6 Rf3+ Ke7 Qh5 Qe5 Bd4 Qf4 Qh4 Rb1 Rhc1 Kf8 R1c2 Rg1 Rcc1 Rfe7 Qg3 Re5 Qh2 Rf5 Qh1 Qd2 Rg3 Rf2 Rf3 Q2f4
BN1Q2QK/2NbP1P1/R4R1n/2b1nq2/2r4b/BNr2nk1/3N4/1r2NBnb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 b4 a5 g4 c5 d4 h4 b6 f3 g6 f6 g5 c4 b5 h3 b7 h2 b6 c3 g7 f2 g6 c2 Nd2 a4 Ngf3 a3 Ne1 a2 Ba3+ Kd7 Kf5 c1N e4 Nc6 b8Q Rh3 d6 Ne2 b7 Rc3 d5 Ng1 e5 Ra4 Qb3 Qa5 e6+ Kd8 d7 Rac4 Qd6 Ne5 b8N Qc5 Qdb6+ Ke7 d8N Bd7 Ndc6+ Kd6 Qd8 Be7 Nd4 Nh6+ Kf4 f5 g8B Bf8 Kg5 f4 Kf6 f3 Bh7 Be7+ Kg7 Bg5 e7 Bh4 Bg2 f1R Kh8 f2 g7 Ne2 Bhe4 Ng1 Nec2 Rb1 Ne1 f1N Bd3 Ng3 Bdf1 Ngf3 Rg1 Ne2 Bh1 Nc6 Rg6+ Ke5 d6 Kf4 Rf6+ Kg3 Bhg2 Neg1 Bh1 Rb4 Qbg8 Qf5 N4b3 Nce5 Bhg2 Rbc4 Bh1 Ng5 Be4 h1B Ba8 Bb5 d7 Ng5f3 Qb6 Bc6 d8N Bd7 Ne6 Rb2 Rc1 a1B Qbd8 Rb1 Nc7 Bb2 Rc2 Ba1 Ra2 Bb2 Bd6 Ba3 Ra1 Bc5 Ra6 Bd4 Bb4 Bc5 Ba3
Rrq1bbQr/PN2R2n/3k2B1/3b1R2/3N1K1n/B2Pr1QB/2n1B3/2Br3b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 c5 f4 b5 a4 e5 g4 h5 d3 c4 a5 c3 a6 c2 f6 b3 f7 e4 f5 h4 d6 b2 g6 h3 g5 b4 f6 b3 g7 h2 g6 Qc7 Ne2 Qc5+ Nd4 Qa3 Kf4 e3 Nd2 b1N Qf3 b2 Qg3 e2 Ne4 e1R Be2 Nh6 g8B Qc3 g7 Nf5 Bh7 Nh4 g8B Na3 Bg6 b1B a7 Qc5 Rf1 Ba2 Rb1 h1B Rb7+ Qc7 Rf3 Bd5 Nc5+ Kd8 B8h7 Nd7 Bf5 Qc6 Bhg6 Rb8 Bh3 Rd1 Rc7 Ba6 Rb7 Qc8 Rf1 Bb5 Rc7 Nb6 Re7 Be8 d7 Kc7 d8R+ Nd7 Rf2 Kd6 Rf1 Bg7 f8Q Re1 Qf7 Bf8 Qg8 Rd1 f7 Re1 Be3 c1R Rf2 Rcd1 Bc1 Nc2 Rf3 Qc6 Rc8 Nf6 Rf1 Rb6 Ra8 Qc8 Rf2 Nh7 Rf3 Bg7 f8B Rb7 Rfe3 Rb8 R3e5 Bdf3 Rf5 Bd5 Beg4 Re6 Be2 Re3 Na6 Qc7 Ree5+ Kd7 Bfa3 Qc8 Nc5+ Kd6 Re7 Bf8 Nb7#
BRrQ3k/n4N2/5n2/1r2rnKb/1r1BR1Pn/3q2BP/N1qBQ1B1/1R2b3 b - - 0 1 illegal: No possible last move
4K1Qn/2RNb3/n2rBR1Q/q1r5/b3P1QB/1nN3n1/P2qQ1Qq/3Nkq2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 g5 Kd4 c5+ Ke4 b5 Kf5 b3 h4 b2 e4 b4 d4 g4 d6 Kc6+ e6 c4 d5+ Kc5 h6 g3 h5 b3 h7 Kb4 h6 g2 d7 c3 e7 c2 e8N Ra5 Qe2 Be7 Nc3 b1Q Nf6 b2 Nh3 g1Q Bg5 c1N Nf2 Na6 Bh4 Qc2 Nfd1 b1Q Bh3 Qh2 Rf1 Nb3 Kg5 Rc5 Be6 Qa5 d8Q Bb7 Qd7 Qd2+ Rf4 Qbd3 Rc1 Bc6 Qc8 Qdb5 Kf5 Qbd3 Nd7 Ba4 Rf3 f6 Kg6 f5 Kf7 f4 d6 Qb1 Rf1 f3 Ke8 f2 Rc2 Bf8 Rc1 Ne7 Rc2 Rg8 h8Q Ng6 Qg7 Nh8 Qg2 Rg6 h7 Be7 Rc1 Nf7 h8Q Qa1 Qg7 Nh8 Qh6 Qb1 Re1 f1N Rc2 Ng3 Rf1 Rgg5 Rf6 Rgd5 Nf2 Qf1 Nfd1 Rb5 Nb8 Rd3 d7 Rd6 d8Q Rc5+ Nd7 Rdd5 Qg4 Kc4 Qb8 Kd3 Qbf4 Rd6 Qg8 Qde1 Qfg4 Qef2 Qb6 Qd2 Qhh5 Qdf2 Rc1 Kd2 Qb5 Q2e2 Qh6+ Ke1 Nb1 Rh5 Rc7 Rc5 Nbc3 Qd2 Qbe2+
bq1R2bN/1Nnr2qB/1B5N/N1nP4/rn2nb2/1P1RB2K/3QN3/Q5bk b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 Kd6 Kf2 c5 g4 h5 Kg2 a5 b6 e5 b7 h3+ Kg3 a4 b3 e4 g5 e3 g6 e2 f6 e1N f7 h2 g7 a3 f5 a2 f6 h4+ Kf4 c4 Qc2 h3 Kg3 c3 Nf3 Ra4 Qd2 c2 Ng1 Na6 b8B+ Nc7 Ba7 Be6 Bb6 Qb8 Bd3 Ne7 g8N Rh7 Ne2 Nc6 Na3 Nb4 Nh6 Be7 f8Q Bg8 Rb1 a1Q f7 Qb2 Be4 Ned3 Rd1 h1B Qg7 h2 f8N Nc5 Kh3 Bh4 Bf5 Bf2 Ng6 Bg1 Nh8 Bf3 Be4 h1N Ra1 Ng3 Qf6+ Kd7 d6 Re7 Bh7 Kc6 d7+ Kd5 d8N Rd7 Rb1 Nge4 Nc4 Qa1 Na5 Qc3 Ba3 c1B Ndb7 Qa1 Rb2 Bh1 Rc2 Qb2 Rc3 Qa1 Qe1 Bf4 Qd2 Rd8 Qc1 Nd2 Nd6 Bf3 Re3 Qc3 Re8 Rd7 Rd8 Qb2 Qc3 Qa1 Bc1 Bh1 Ndf5 Ke4 Qb2 Kf3 Nd6 Kf2 Qe5 Ba8 d5 Kf3 Ndb7 Nde4 Rd3+ Kf2 Be3+ Kf3 Kh4 Kg2 Qd2 Kh1 Kh3 Qb2 Qec3 Qa1 Qcc1 Qg7 Qa1
1nRq3Q/K2Q4/bB4rP/k2qbN1Q/nN1n4/3q3r/1qB3QP/R1n2QR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 a5 b4 f5 d4 c5 h6 Kc7 e5 Kb6 d6 g5 d7 a4 e6 a3 e7 a2 e8Q c4 d5 f3 Ke3 c3 Kd4 g4 d6 c2 Nc3 g3 Ba3 c1Q Nge2 g2 Ng3 g1N Qh5 f2 Bd3 f1Q Bc2 f4 Nf5 Qf3 Qf1 Ne7 Kc4 Ne2 Rg1 Qb2 Nd5+ Ka7 Kc5 Nc3 Qg2 Nec6 b6+ Ka6 b7 Nd4 b5+ Ka5 b6 Rg8 Nb4 Bg7 Qf1 Be5 Qg2 Qe8 d8R Rg6 d7 Qd1 Qf1 f3 Qg2 f2 Qf1 Nbc6 b8Q Ba6 Qb7 Nb8 Rc8 Qd8 Qbg2 Qf3 b7 Qd3 Qb1 f1Q Qc1 Qff3 Qcf1 Nbc6 b8Q Qfd1 Qd6 Nb8 Qf8 Ra7 Qh8 Rb7 Nd5 Rb3 Nb4 Na4+ Kd5 Qb6 d8Q Rc3 Qd7 Qd8 Rc1 a1N Rb1 Nab3 Ra1 Bf6 Kd6 Nc1 Kd5 Qg8+ Kd6 Rb3 Kc7 Qe6 Na2 Qd5 Bc5 Q3e2 Nb4 Rh3 Qe6 Qed3 Qc6 Bb5 Kb7 Ba6+ Ka7 Be5 Qd7 Q1d2 Bb1 Qg5 Bc2 Qd8 Bb6+
1bbB4/RQ4Bq/2BPr3/qq1Bn2r/RP6/8/bKQNbq1k/1NQ1nB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Ke7 Kd2 Kd6 Kc3 h5 b4 a5 g4 c5 e4 f5 b6 f3 g6 a4 g7 a3 b7 a2 g5 f2 g6 h4 Qg4 h3 Qd1 c4 Nd2 h2 Qe2 f4 Ndf3 Ra6 Be3 Qh4 Re1 a1Q+ Kc2 c3 Bc1 Nh6 g8B Ng4 g7 Qh7 Nd2 f3 Nb1 Ne5 Bh6 Qa5 Qe3 Nbc6 Qc1 Nd3 b8Q+ Qc7 Qa7 Qa5 Qb7 Nce5 Be6 Rb6 g8Q Rc6 Kb3 c2 Bg7 Be7 Rd1 Ne1 Kb2 Bd8 Qgf7 Bc7 Qf5 Bb8 Rd3 Rb6 Ra3 Qb5 Ra4 Ra6 Bh3 f1B Bg2 f2 Nf3 Qa5 Nfd2 Be2 Bf1 Rc6 Rg1 h1B Rg3 Qb5 Rga3 Bhf3 Ra1 Bc4 Ra7 Bfe2 R1a4 Ba2 Bf6 Qd7 Bg7 Rh5 Bf7 Ke7 Qh7 Re6 Bg8 Qc7 d6+ Kd7 d5 Qa5 Bh3 f1Q Bf7 Qf2 Bf1 Kd8 d7 Ke7 d8B+ Kd6 Bg8 Qc6 Qf5 Qcb5 Bh7 N5f3 Qd1 Reh6 Bg8 Rf6 Qg6 Ke5 d6 Kf4 Qf5+ Kg3 e5 Rg6 e6 Ne5 e7 Kh2 Bd5 Re6 e8B Qd3 Qf8 Qh7 Qf5 c1Q+ Ka1 Qh8 Bec6 Qc4 Qc1 Qcb5 Qfc2 Qh7 Kb2
R1Q1Q1N1/1R2n1nb/PB3nP1/1KBQ2N1/QQ6/1b3k1q/Bbr2q2/r2nb3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 b5 a4 c5 g4 h5 f4 e5 f6 Kg6 a5 b3 d6 b2 f7 b4 Kc4 h4 d4 b3 d5 e4 d7 e3 d6 e2 Nf3 e1N Nfd2 h3 Kb5 h2 Nc3 b1N Nce4 c4 Nf6 c3 Bc4 c2 Nde4 b2 Be3 c1B Bc5 Nc2 Ba2 Ne3 Qa4 Ne7 Ng8 N3f5 Rd1 Qc7 d8Q h1Q d7 Ng7 Qe8 Qh3 d8B Qa7 Bdb6 Be6 Rd7 Bb3 Rb7 Nd7 Qc8 Bd2 Qe8 Be1 f5+ Kh7 f6 Nc3+ Kb4 Nd1+ Kb5 Kg6 Qc8 Ngf5 Qe8 Bg7 f8Q+ Bf7 Qc8 Bb3 f7 b1B Qfe8 Bb2 f8Q+ Bf7 Qed8 Nf6 Qd5 Ng7 Qfe8 Qc3 Qdc4 Rh2 Qcb4 Qh3 Qed7 Bb3 Qd5 Rc2 Qe8+ Kh7 Qc8 Qb8 Qe8 Qbg3 g6+ Kh8 g5 Qf2 Ba7 Ne6 g7+ Kh7 Qc8 Kg6 Bab6 Kh5 Qe8+ Kg4 g6 Kf3 Nh6 Ra6 g8Q Ng7 Qge6 Ra7 Q6c8 Ra6 Qdd7 Bg8 Qd5 Bh7 Ng8 Rc4 Rb8 Bc2 Ra8 Bb3 Rc1 Ra7 Rb1 Rc1 a6 Rc7 Bd6 R7c3 Bdc5 R3c2 Bd8 Qh6 Qbd2 Bd4 Ka5 Bc4 Rb7 Bb2 Bdb6 Ra1 Qdb4 Bb3 Kb5 Qh3 Ng5+
2K1nkrB/1NR2PB1/2q2r1B/1n2q1br/q2R1r2/1P1b2Q1/Q1q4Q/1B3BN1 b - - 0 1 illegal: No possible last move
N1n2b2/n2R1P1B/NN1b2rP/r5q1/4rN2/B3Nb2/1QBr1q1b/k1KQ3R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 f4 d5 b4 e5 h4 a5 c5 g5 h6 d3 b6 g4 h5 a4 c6 e4 b5 a3 h7 g3 h6 a2 c7 d4 b7 g2 b6 Nc6 b8N Na7 b7 Ne7 Ne2 g1B Na6 Bh2 b8N Rg8 Na3 Bb7 c8B Rg6 Bd7 Nec8 Ba4 Bd6 Bb2 e3+ Kc1 Bf3 Bc2 Qb6 Rb1 a1B Nc4 Qa5 Bh3 Qe1 Bg4 Qf2 Ba3 Bf8 Rb7 d2+ Kb1 d3 Rd7 Bb2 Nc7 Be5 Nba6 Bed6 h8Q+ Rg7 Ng1 e2 Ne3 e1R Nh3 Re2 Bh5 Re1 Bg6 Re2 Qc1 d1Q Bh7 Qdg1 Qd1 Qg5 Kc1 Re1 Qg8 Rg6 Qb3 Rb8 Na8 Rb5 Qb2+ Re5 Nc4 Re4 Ne3 Bb4 Rd5 Bbd6 Rd4 Ra5 Rd5+ Ke7 f6+ Ke6 f7 d2+ Kb1 Be5 f5+ Kf6 Rd4 Bed6 Nf4 Ke5 f6 Bc5 Qdc1 d1R Rd7+ Rdd4 Qd1 Bcd6 Qb3 Rdd5 Kc1 Rd2 Qb5+ Kd4 Qbe2 Be7 f8N Kc3 f7 Rdd4 Rb7 Rd2 Nd7 Bf8 Ndb6 Qf1 Bd3 Qfg2 Rd7 Qf2 Qdf1 Kb3 Bc2+ Ka2 Qfd1 Ka1 Qb5 Bc5 Qb4 Bcd6 Qb2#
1q3N2/4r2n/7R/2B1kn2/bR1Np1Bq/QRKN2bP/1r1Q2Pn/r1R2R1q b - - 0 1 illegal: No proof kernel
2b1BR2/N2bKn2/N2B3Q/BnQQ2p1/P1rn4/bBrq2q1/3kB2P/q3R3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 b5 Kd4 g5 e4 f5 a4 f4 h6 f3 d6 Kc6 e6 f2 Ke5 Kc5 d4+ Kc6 d7 b3 h7 b4 e7 b2 Ke6 b3 e8B Ba3 e5 Ne7 d5+ Kc5 d6 Kb4 Qc2 c5 Nf3 c4 Be2 f1B Nfd2 c3 Bf7 Ng8 Ne4 Qc7 Nc5 Nc6 Bf4 Nh6 Kf6 Ra6 d8B Nd4 e6 Rc6 d7 Bh3 Re1 Rf8 Qc1 c2 Nc3 b1Q h8Q b2 Ke7 Bf5 Qe3 c1Q Nb5 Qd3 Na7 Kc3 Bd6 b1N Na6 Rc4 Qf2 Qb8 Ba5+ Kc2 d8Q Nc3 Bg8 Nf7 Qh6 Kd2 Rf1 Qcb2 Rae1 Qa1 Qd7 Bg4 Qb7 Bd7 Qd5 Rfc8 Qff5 Qb3 Qc5 Qg3 Qfd5 Qc2 Rf2 Qcd3 Rf4 Ne5 Rf8 Nf7 Kf6 Rc7 e7 Bc8 e8B Bgd7 Ke7 Rc6 Bd8 Ncb5 Ba5+ Rc3 Qb6 Rc4 Qbc5 Qf5 Bh7 Qff3 Bc2 Qd3 Bb3
3k2nb/4n1Nr/Bb3q1p/3r1b2/2PR1B2/1PNB1qR1/2qQnR2/K2R1RQ1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 g4 e5 f4 d5 f6 d3 Kc3 d2 b3 d4+ Kb2 d3 f7+ Ke7 g6 e4 b6 a4 b7 e3 g5 e2 f5 e1N f6+ Kd7 g7 h6 g6 Ne7 g8Q Nf3 g7 Ng5 Ne2 Ra5 Rh4 Nbc6 b8R Nd4 Nf4 Rf5 Ne6 Ne4 Nc3 Ne2 Rb1 a3+ Ka1 a2 Qe1 d1Q Qd2 Ng5 Rd4+ Rd5 Rb6 Ne4 Rb5 Rd6 Rg5 Rh7 Rg3 Rd5 Rg4 Nc6 Rg3 Bc5 f8R Bb6 f7 Qf6 Rd8+ Ke7 f8R Bd7 Qe1 Bc8 Bf4 d2 Qf2 Qc1 Qe3 d1Q Qd2 Qe1 Rd6 Qf2 Rdd8 Qf3 Rd6 Ng1 Ba6 Ne2 Rdd8 Qcf1 Rd6 Q1g2 Rf1 Qgf2 Na4 Qh2 c4 Qhg2 Nc3 Qh2 Nc7 Bf5 Ne6 Qhg2 Qh8 Qgf2 g8B Q2g2 Rf7+ Ke8 Qg7 Ne7 Qg5 Qh2 Rc6 Kd7 Ng7 Kd8 Re6 Qe5 Rg6 Nf6 Rgg1 Qd6 Rd1 Qe6 Rgf1 Qhf2 Qg2 Qee4 Qg1 Qc2 Ne8 Qh4 Rg3 Qg5 Rf8 Qg7 Bf7 Nfg8 Bg6 Qf6 Rf7 Be6 Be4 Bf5 Ng7 Qcd3 Kb2 a1B+ Ka2 Bb2 Rf2 Qc2 Bd3 Ba3+ Ka1 Bac5 Re4 Bd4 Rff1 Be5 Rd4 Qd6 Bg5 Bc8 Qc1 Qf4 Nh5 Bh8 Ng7 Qe3 R7f5 Qf6 R5f2 Bf5 Qd2 Qf3 Bf4
bBR1RQ1N/k4nB1/4bb1p/KP2P1R1/2q1BN2/2rqr2R/3RQ2q/1rn5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 g4 a5 b4 c5 d4 Kc7 Kd2 Kb7 Kc3 f5 g6 a4 g7 c4 b6 h6 g5 f3 b5 f4 g6 f2 d6 a3 Kb4 f3 d5 c3 Nh3 a2 Bb2 c2 Nd2 c1R Nf4 Nd7 Bd3 f1Q Qe2 f2 Nf3 Nc5 d7 Ne7 g8Q Nb3 g7 Ra3 d6 Rb1 Ng5 Ng6 Nf7 Nc1 Rh3 Rc3 Ka5 Be7 Qf8 Bf6 g8R Ne5 Rg5 Rg8 Nh8 Nf7 Bc2 Qh1 Bd3 f1B Bc2 Qc7 d8R Be6 d7 Bg2 Re8 Qh2 d8R Qc4 Rc8 Bh1 e5 Bc6 Be4 Re3 Ba3 Rg7 Rgh5 Rgg3 Rg5 Rc3 Bc5 Rge3 Be7 Rb2 Rb1 a1Q+ Ba3 Rbb3 Rb2 Qb1 Rd2 Qbd3 Be7 Rb1 Ba3 Bd8 Be7 Bcd5 Bf6 Bc6 Bg7 Bcd5 Rc7+ Ka8 b7+ Ka7 Bf3 Bf6 Rcc8 Be4 b8B+ Kb7 Bd6 Ka7 Bg2 Bc6 Be4 Ba8 Bb8#
N4bn1/3Q1bb1/q1q2qPQ/5nB1/BQn3N1/5RrN/1N2pPNr/1K2Rk2 b - - 0 1 illegal: No possible last move, all moves rejected
r1q4n/1Q1r1BQb/1Rn3Pq/q3n1R1/3b1pBB/BNPN1B1N/8/1K1k1r2 b - - 0 1 illegal: No possible last move, all moves rejected
Nq4Q1/RB4Kn/3nNNP1/Q3R1Pp/br6/3qb1RN/6r1/1rN1qkBb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kb4 g4 a5 d4 h5 d6 c5 d7 f5 g6 c4 g5 a4 d5 f3 b6 a3 d6 a2 b7 f2 Qd5 c3 Nd2 c2 Rh3 f4 Ba6 f1B Rg3 f3 Nh3 f2 Nb3 Qc7 d8Q Nf6 Qg8 Bd3 Be3 f1Q Bg1 Ne8 Nc1 Bd7 b3 Kc3 b4 Kd2 b5 Ke1 b6 B7b5 Ke6 Be7 e5 Be4 d7 Qd3 Kf7 Nd6+ Kg7 Ba4 e6 Qc8 Qc7 Kf1 d8N Nd7 b8N Nf6 b7 Bh1 Nd7 Nh7 Qa5 Qb8 Nb6 Ra7 Na8 Bf6+ Kh6 Bd4 e7 Bb6 e8N Be3 Nac7 Ra8 Nde6 Ra7 Kg7 Ra8 Nb3+ c1R Nf6 Rb1 Nc1 Ra7 Na8 Rb4 Rb1 a1Q Rb3 Qc3 Ra3 Qe1 Ra2 Rb1 Re2 Bd2 Re5 Be3 Bc4 Ra6 Bd5 Rc6 Be4 Rc2 Bd5 Rg2 Be4 Qe8 b8R Qeb5 Rf8 Qb8 Rf7 Rb4 Ra7 Rb1 Qf7 Rc8 Bf3 Rc4 Bb7 Rcb4 Qg8
7R/1Bqb3Q/2b2P1R/1PQr3N/1nq1rbBB/4B3/p1B1k1n1/NRKn1r2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 Kd2 Kd6 g4 c5 f4 h5 b4 e5 f5 a5 g6 a4 g5 a3 g7 a2 b6 h4 b7 h3 b5 h2 g6 c4 Nh3 Nf6 g8B Ra4 g7 Rh5 Qc2 Qc7 Bh7 Ng4 g8B Ne3 Nf4 Bh6 Bg2 Nd1 Be6 Bd7 Na3 Na6 b8R Nb4 Rb1 Rg5 Nh5 e3+ Ke2 e4 Rh8 c3 Ke1 e2 Be3 Ra8 Qd3 c2 Kd2 e1N Kc1 Rf8 Bf3 Qc4 Bg2 Kc7 d6+ Kb6 d5+ Ka5 Bf3 Ng2 Qd4 Qc7 Qc5 Rf7 f6 Re7 Beg4 Ka4 Bf2 e3 Bh4 e2 Bd3 e1R Bde4 Bf5 d7 Rf1 d8Q Bd7 d6 Re8 Bb7 Re4 Qg8 Ka5 Qh7 Rd5+ Qe3 Ka4 Bf5 Bf4 B3g4 Bc8 d7 Qc4 d8B Bd7 Rg1 h1B Bb6 Qc7 Qd2 Qc4 Be3 Qc7 Qf2 Qc4 Ra1 Kb3 Rb1+ Kc3 Bg6 Bc7 Qf5 Bf4 Qe5+ Kd3 Qd6 Ne1 Qc5 Bf3 Rh1 Ke2 Rh2+ Ng2 Rh3 Qc3 Nc4 Qd4 Na5 Qc4 Nb3 Bc6 Bgc8 Bg4 Na1 Bgd7 Rh1 Be8 Be6 Bed7 Bg4+ Rf3 Qd6 Re6 Bg3 Qc5 Ng7 Qb6 Qc5 Qd8 Rh6 Qc7 Nh5 Re7 Bh4 Re6 Bh3 Rf1 Be4 Nc3+ Kb2 c1Q+ Kb3 Nd1 Bg4+ Rf3 Bg6 Qc4+ Ka3 Re8 Bc2 Re4 Qf8 Nc3 Kb2 Nd1+ Kc1 Na6 Bf5 Rf1 Qc5 Nb4 Bg4+
KBN1Qk1N/Q6Q/3P3b/n1Qrq2q/N1q3Q1/1nP2BpR/b2r1r2/4Rn2 b - - 0 1 illegal: No proof kernel
1N3qq1/1KQ1BR2/1QNpB3/Qn2Q1R1/1Pn5/b2P2k1/Q3brq1/2N1rr1b b - - 0 1 illegal: No possible last move
bkq3q1/2bB2r1/1NPN1Q1N/2B3bn/2q1Nn2/rP2KR2/1Qp2R1Q/6rN b - - 0 1 illegal: No proof kernel
rq2N2R/k6r/rRpq3B/1N2nKbN/2PP1NB1/2BQ1bb1/n3N1n1/Q7 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 a4 Bg4 axb5 Bc8 e4 e5 fxe5 dxe4 Ke2 Kd7 Ke3 g5 h4 a5 c4 f5 b4 g4 Kf4 a4 b6 Kc6 e6 Kb7 e7 e3 e8N e2 b5 e1Q h6 a3 h5 a2 h7 c6 h6 g3 Bh3 g2 Na3 Be7 Rb1 a1R Ne2 g1B d3 Be6 Bg4 Na6 Rh3 Kb8 b7 Ka7 b8N Nf6 Nd7 Bf2 Rh1 Qb4 b6+ Kb7 Ne5 Bd5 Ng6 Nd7 Qd2 Kb8 b7 Ka7 b8N Ne5 Nd7 Qdb8 Ndf6 Q4d6 Rb6 Bg3+ Kg5 f4 Kf5 Rg8 Rh2 Rg7 Qc3 f3 h8Q f2 h7 f1N Rh6 Bf3 Nh5 Nd7 Bg5 Bf6 Ngf4 Nb4 Qd4 Re7 Qg7 Ra2 h8B Ra1 Rh7 Rf7 Bh6 Bg5+ Qgf6 Re7 B8g7 Ra2 Rh8 Ne3+ Kg6 Ng2 Kf5 Ra1 Qe4 Ra2 Qa1 Rf7+ Bf6 Rh7 Bc3 Ne5 d4 Nd7 Nb1 Ne5 Qd3 Ra6 Na3 Na2 Nb5+
n4b2/q3q2n/P1b3r1/R1NbB2Q/1pQ1rk2/1BrP4/1B1KnB2/R3QBN1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 Kd6 g4 b5 g6 h5 g5 e5 g7 c5 d3 c4 g6 e4 a5 e3 f6 e2 f5 Ke5 f7 b3 f6 b2 a6 b4 d6 c3 d7 h4 Ra4 h3 Qd2 c2 Ra3 h2 Nc3 b1Q Ne4 Bb7 Ra5+ Bd5 Nc5 Qe7 d8B Rh6 Bb6 Nd7 Qc3+ Kf5 Kd2 e1R Bb2 c1N Bc7 Rb8 Be5 Nb6 Qc4 Qa7 Qh4 Re4 Qe1 Ne7 g8Q Rc8 g7 Ng6 Qh8 Na8 g8B Ne2 Qh7 Qa1 Qh8 Qa4 Qh7 Q4d7 Qh8 Bg7 f8Q Qe7 Qf7 Nf8 Qe6+ Kg5 f7 Nh7 f8B Rg6 Bf7 Bc6 Qc4 Bh6 Bfg7 Rc7 Bed4 Kf4 Bgf6 Bf8 Bf2 Ng5 Qh5 Nh7 Qd4 Rc8 Bb3 Bd5 Nb7 Rc4 Nc5 Rc3 Qc4 Bc6 Nf3 Bd5 Rg1 h1B B6d4 Bg2 Rh1 Bh3 Ng1 Bd7 Bh8 B7c6 Bg7 Qg5 Be5+ Kf5+ Be3 Rh4 Qd1 Bd7 Bh3+ Rg4 Nf3 Bb5 Rf1 Bbc6 Ng1+ Nf4 Re1 Ne2 Bf1 Rf4 Qh1 Qge7 Qh5+ Ng5 Bf2 Re4 Bg7 Kf4 Bh8 Ng3 Qde2 Nh7 Rea1 Bg8 Bg7 Bgd5 Qe1 Ne2 Be5+
5Q2/6QP/1rkNN1bb/3QrqBq/2nK2QP/1R1n1QRB/2qrp3/3R3n b - - 0 1 illegal: No possible last move, all moves rejected
2R1Nn1b/K5RP/Qr2n1Q1/4rN2/2B3Rp/2NbqPn1/1Rr2Bqq/5k1R b - - 0 1 illegal: No proof kernel
4n1r1/2QB1NP1/q1pn4/2b3P1/Q3rR2/BKRb1Q2/4qQBQ/k1q1N1nb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 e4 Kd6 b4 Ke5 d4+ Kd6 Kd2 f5 Kc2 a5 b6 h5 b5 f3 g6 h4 b7 h3 g5 a4 b6 f4 g7 f2 Ra3 h2 Rc3 c6 Nd2 a3 Ndf3 a2 Kb3 a1Q Bg2 f1N Ne5 Nh6 Qf3 Na6 b8Q+ Nc7 b7 Ng3 Qa7 Nf7 b8Q Bf5 Qa4 Qc8 Qb6 Ra5 Ba3+ Rc5 Qb8 Qc1 Qf2 Bg6 Ngf3 Qa6 Ne1 Ne2 Rf1 h1B Qf3 Ng1 Rf2 Ke7 d6+ Ke6 d7 Rg8 d8Q Ne8 Qdc7 Nfd6 Nf7 Rc4 e5 Bd3 d5+ Kf5 e6 Re4 Rf1 Be7 Qf2 Bf8 e7 f3 Qe2 f2 Qbb6 Nf6 e8B Kf4 Bd7 Ne8 Qd1 Be7 Qbb8 Ke3 Qf3+ Kd2 Qcb6 Nb7 Qh2 Bc5 Qf5 Kd1 d6 Kd2 Be6 Kd1 d7 Nbd6 d8Q Kd2 Qdb8 Kd1 Q8c7 Kd2 Bd7 Kd1 Nc2+ Kd2 Re1 f1Q Qf3 Qe2 Rf1 Qcd1 Bb4 Kc1 Ba3+ Kb1 Rf2 Qc1 Ne1 Qed2 Qfh3 Qe2 Rf4 Ka1 Qf3 Bb4 Qbe3 Bc5 Qef2
1KN1b1b1/rbr1kp2/2r1n3/R5Nn/1qN1NPn1/4R2q/4BP1Q/2RNBQ2 b - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 c4 gxh4 cxd5 Bh6 e3 Bf4 exf4 Bf5 Ra2 Bd7 Ra1 Bc8 Ke2 a5 Kf3 c5 Ke4 e5 g4 h5 d4 a4 b4 c4 d6 c3 Kd5 h3 b6 h4 d7+ Ke7 g5 e4 b7 h2 b5 c2 b6 a3 g6 a2 g7 h3 Ne2 e3 Nd2 Rh6 Nc4 Rh7 Nc3 e2 Bd2 e1Q Be2 Qg1 Qf1 c1R Nd1 Ra7 Be1 Qf8 d8N Rh6 Ne6 Nc6 b8Q Nd8 b7 Bd7 Ng5 Qg2+ Ne4 Ne6 Qc8 Ba4 b8R Be8 Rb3 Nf6+ Ke5 Rc3 d5 Nh5 Qa8 Rc2 Re3 Rf6 Rg1 h1B Qb8 h2 g8N+ Kd7 d6 Qh3 Rc1 a1N Ne7 Rc3 Qb2 Nc2 Nc8 Bf3 Rg4 h1B Rg5 Bg4 Qb8 Bf5 Qa8 Kd8 d7 Bh7 Kd5 Qe7 Kc6 Bg8 Ra5 Qb4 Qb8 Rg6 Qe5 Rh6 Qg7 Bg2 Qg3 Rg6 Qh2 Rf6 Rf3 Ne3 Rg3 Ng4 Re3 Bf3 Nb6 Ra6 Kb7 Ke7 d8N Ra7+ Kb8 Rh6 Ned2 Bb7 Ne4 Nc5 Ne6 Rf6 Nc7 Rc6 Ne6 Rc7 N6g5 Ne6 Na3 R3c5 Nac4 R5c6 Nc8+
BrNR2b1/3P2Rp/b1Rq1rnP/2N4r/2b1Q1Bn/K1k3q1/BnQ1B3/B7 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 e3 d5 Ra6 d3 Ra4 d2+ Ke2 d4 Kf2 d3 Ra5 Bg7 Ra1 Bd4 exd4 Qd5 Qe1 Qd6 Qd1 Qd8 Ke3 Kd7 h4 Ke6 c4 f5 b4 a5 g4 a4 h5 a3 c5 Kd5 b6 Kc4 h6 e5 b7 a2 c6 e4 b5 Qa5 g6 Qa6 g5 Qb6 g7 Ra3 c7 Ra4 g6 Ra8 Be2 Qf6 d5 Ra5 d6 Ra3 b6 Qb2 Qc2+ Kb4 Nh3 d1Q Rg1 d2+ Nc3 f4+ Kd4 f3 Ng5 f2 Nf7 Ne7 g8B f1B g7 Qb3 Bb2 e3 Rc1 a1R Na4 Nd7 b8R Nc5 b7 Nd3 Nc5 Ra6 d7 R1a3 Nd6 R3a5 Ba1 Ng6 Be6 Nb2 g8B Qa3 Ba2 Qb3 Bg4 e2 Bc4 e1N Bce2 Qg3 Ra8 Ng2 b8Q+ Rb6 Qb7 N2h4 Qbe4 Ba6 c8B Bc4 Bb7 Rb8 Nc8 Rf6 Ra6 Rb5 Rc6 Bg8 Ba8 Ra5 Bef3 Bfc4 Be2 Rab5 Ne6 Rh5 Nc5 Qf1 Re1 d1B Rg2 Qh1 Rf1 Qhh2 Rf4 Re6 Rf8 Rf6 Rd8 Qd6+ Ke3 Qdg3+ Kd2 Qd6+ Kc1 Qhg3 Qcd3 Ba4 Qc2 Bb5 Rf2 Re6 Rf7 Rf6 Rg7 Ba6 Bb3 Nd3+ Kb1 Nb2 Ka2 Nf3 Qd1 Kc3 Ka3 Nfh4 Ba2 Rf7 Qa4 Rf6 Qac2#
8/1Pq2B1N/KQbkQ1b1/b2BR2n/4Bp1B/r4r1q/Qn1R1qP1/N1nB4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 f5 Kc4 a5 e4 h5 b4 d3 b6 d5+ Kb5 h4 c4 d4 b7 h3 e6 h2 c5 a4 g6 d2 e5 a3 g7 d3 c6 a2 c7 Nd7 b8Q Rh3 Qb3 d1Q Be2 d2 Qb6 Ra6 Na3 Qc2 Nf3 d1B Re1 h1N Bg5+ Ngf6 g8B f4 Bh4 Bh6 Ng5 Ra8 Nh7 Bb7 c8Q Bf8 Qcc4 Qd2 Nc2 Ng3 Rc1 a1Q Qa2 Qb1 Na1 Qb3 Rc2 Qc7 Bg4 Qde3 Rd2 Bc2 Bd1 Qf2 Re4 Nc5 Qd5 Ke8 e7 Ne2 Qde6 Ra3 Re3 Na4 Ka5 Ba8 b5 Bae4 Ka6 Nb2+ Qa5 Qd5 b6 Nh5 b7 Nd4 Qg6+ Kd7 e6+ Kc6 e8B+ Qdd7 Qh6 Ne2 Bg6 Nc1 e7 Rf3 e8B Bb4 Be6 Ba4 Bd5+ Kd6 Bef7 Qh3 Ree2 Bf5 Re5 Bc3 Qb6+ Bc6+ Ba4 Ba5 Bd1 Bg4 Bge4+ Be6 Qg5 Bf5 Qg4 Bg6 Qe6+
2QQ1Rr1/1PQnB1q1/b3B2k/BqBp3n/nbP5/1Kb5/NNR3r1/6rB b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 Kg7 c4 h5 Kc2 e5 g4 a5 f4 a4 g6 h4 b6 a3 f6+ Kh6 b7 d6 b5 e4 b6 d3+ Kb3 h3 f5+ e3 f7 h2 g7 d2 f6 e2 g5+ Kg6 Bg2 e1N Nf3 a2 Rf1 h1Q Ne5+ Kh7 g6+ Kh6 Nd3 Kg5 Nb2 Rh2 Nc3 Be7 f8B Nd3 f7 Nf6 g8B Qc7 g7 Nbd7 b8Q Ba6 b7 Kh6 Bd5 Qc5 Qc7 Qhg1 Bh1 Nh5 Rb1 a1B Na2 Rg2 Rf4 Bf6 Be7 Bc3 f8B Bb4 Be6 Qb5 Rf5 Qd4 g8Q+ Qg7 Qg4 d5 Bc5 Ra7 Bfe7 Ra8 Qgd8 Rb8 Rf4 d1R Bd2 Rdg1 Rc1 Rc8 Rc2 Ra8 Nd1 Nb2 Qh3 Na4 Nb2 Rc8 Be1 Rb8 Rf8 Ra8 Qhg3 Rb8 Qcc8 Ra8 Qgc7 Rb8 Nd3 Bac3 Nb2 Nab6 Rf4 Be5 Qf8 Na4 Qce8 Ba3+ Beb4 Bc3 Qg8 Qc6 Ba5 Bab4 Rf5 Qb5 Qgf8 Ndf6 Qed7 Rd8 Qdc8 Nd7 Qe8 Ne5 Qed7 Rg8 Qdd8 Nd7 Rf8
k1bN1R2/Pp1Nnr2/P1nN3R/3QBrr1/8/3BBqQq/3Bbb2/K3n2B b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 a4 Kd7 g4 c5 f4 Kc7 d4 h5 Kd2 e5 Kc3 e4 Kb2 h3 f6 h4 d6+ Kc6 f7 h2 g5 h3 g6 e3 f5 e2 d7 e1N a6 c4 f6 Rh6 d5+ Kc7 g7 Bc5 f8Q Rh4 a5 Rg4 f7 Qe8 d8B+ Kd7 d6 Kc6 d7 Nf6 g8B Qe2+ Bd2 Qd3 Nf3 Ba7 Na3 Rg5 Nb5 Bf2 Qg7 Nd5 f8B Ne7 Bc7 c3+ Ka2 c2 d8N+ Kc5 Nd6 c1R Ne5 Qf3 Bd5 Nbc6 Bd3 Rf5 Rf1 h1B Qg3 h2 Bfh6 Rb1 Bhg5 Rb5 Rb1 Bg2 Ka1 h1Q B5e4 Qh3 Bge3+ Nd4 Rh1 Bf1 Qb3 Be2 Qa2 Qf1 Rh6 Qh3 Qag8 Qfh5 Bh1 Qf3 Bg5 Ndc6 Nd7+ Kd4 Bb8 Rf7 Bgf4 Rg5 Be5+ Kd5 Ba7 Rf5 Rb4 Rb8 Rf4 Rg5 Nb6+ Kc5 Rff6 Rf5 Q8g5 Ra8 Nd7+ Kd5 Bef4 Re5 Bae3 Rh7 Rf8 Rf7 Qg8 Rg5 Ne6 Rff5 Be5 Rb8 Rf7 Ra8 Ndc5 Bd7 Rff6 Rf8 Nd8+ Be6 Rf7 Bc8 Nd7 Nb4 Ne6 Kc6 Nd8+ Kc7 Rff6 Nbc6 Qd5 Rfg8 Rf8 Rh8 Nb6 Kb8 Nd7+ Ka8 a7 Rh7 a6 Rhg7 Bb4 Rgf7 Bbd2
2BR3n/pPNB3r/k1P3bN/2rRB1QQ/q1Qq4/1rb4K/4B1Bb/2nq4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 f5 Kg2 g5 h4 d5 e4 Kd7 c4 Kc7 b4 Kb7 c6+ Kb6 c5+ Kc7 h5 g3 e6 f4 e5 f3+ Kh3 f2 h6 d4 h7 g2 Qg4 d3 e7 d2 e8B d1R e6 Bd6 e7 Na6 b6+ Kb8 c7+ Kb7 b5 Nf6 Bf4 Rb8 Nc3 Qd7 Be2 f1Q Nf3 Nb4 Nd4 Nh5 Ra5 Nd3 Nf5 Nc1 Be5 Rd5 Qc4 Qd1 Bg6 g1B e8B Qc6 Bd7 Bh2 Nh6 Be7 Bb1 Bf6 Be4 Bg7 Bg2 g4+ Kh4 g3 Kh3 Qd4 Rf1 Qd1 Rf8 Bf6 Rd8 Nf4+ Kg4 Ng6 Kh3 Re8 h8Q Re7 Qe8 Nh8 Qh5 Rh7 Qg5 Ka8 Qh5 Ba6 c8B Rb7 Bgf3 g2 Qg5 g1Q Bg2 Qa4 Qh5 Qgd1 Qg5 Qd6 c6 Kb8 Qh5 Rc5 Qg5 Rc7 b7 Q6d4 Ne4 Bg7 Nd6 Bf6 Bf5 Rce7 Bfd7 Kc7 Qh5 Kb6 b8Q+ Bb7 Ne4 Re8 Nc3 Ree7 Qd6 Ba6 Qg5 Bg7 Qdg6 Rf7 Q6h5 Rf2 Bef3 Rb2 Bfg4 Rb3 Be2 Qb4 Ra2 Qa5 Rd2 Qa4 Rd3 Ka5 b6 Bb5 b7 Ka6 Qb4 Bc4 Nb5 Bf7 Qc4 Bg6 Bg3 Qb2 Rd5 Bc3 Bd6 Qbd2 Be5 Qd4 Nc7+
2Q2r1n/3q1n1b/1B2B1NN/N2bb1Nn/R1B5/K3N1kP/p2QPR2/3bb2r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb3 Kg4 b6 g5 h6 f5 b7 d5 c5 a5 e6 f4 e7 f3 e8B f2 h7 d3 c6 d2 c7 a4+ Ka2 d4 b4 a3 b5 d3 b6 Bg7 Nf3 Nh6 Bb5 Be6+ Bc4 Qd7 c8Q Nc6 b8N Be5 b7 Bd5 Nc3 Nd8 Nc6 Nhf7 b8N Rf8 h3+ Kg3 h8N g4 Bg2 f1N Ng6 Nh8 Ng5 Ndf7 Nd8 Ra5 Qc2 d1B Nbc6 d2 Rh2 Ra6 Qb2 Bc2 Na5 d1B Be3 Rb6 Qc1 Rb1 Bb6 Bce4 Qd2 Rc1 Ne7 Bh7 Ng6 Rb1 Be4 Rc1 Bc2 Rb1 Rf2 Rc1 Kb3 a2 Ka3 Rb1 Bf5 Ba4 Ndb7 Rd1 Nf4 Kh4 Rb1 Ng3 Nd6 Rh1 Rb5 Nh5 Nd1 Kg3 Ne3 Bd1 Be6 Kh4 Rf1 g3 Rb4 g2 Ra4 g1B Ng6+ Kg3 Rf6 Bf2 Ndf5+ Kh2 Nh6 Be1 Rf1 Kg3 Rf2
n1RrB1B1/R1bQ4/3bqN2/6BB/2pP1N2/3B1PK1/4Q1b1/rrRbnb1k b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 a4 h5 g4 c5 f6 Kg6 d6 b5 d7 e5 f7 c4 a5 e4 f3 e3 a6 b3 a7 b2 Ra6+ Qf6 d8Q h4 Qe8 e2 Kf2 e1B+ Kg2 h3+ Kh2 b4 Bf4 b3 Rd6 Na6 Rd7 Qe6 Be2 Nc7 Bc1 Nf6 Nd2 b1R Bd3+ Ne4 Ne2 b2 Qa4 Bd6+ Nf4+ Kh7 g6+ Kh6 f8R Kg5 g7 Kh4 g8B Nf2 Ne4 Ba5 g5 Bb6 Bf1 Nd3 g6 Ne1 g7 Ba5 Re7 Bd7 Qc2 Ba4 Qe2 Bd1 Bf7 Rd8 g8B Na8 Bh5 Bac7 Rg1 Ra1 Rh1 b1B Nf6 Bd3 Qd7 Rb8 Rc8 Rbb1 Bgf7 Rd8 Bg8 Kg5 Kg3 h2 Rg1 h1B Rh7 Bg2 Be3 Nb6 a8B Kf5 Be4+ Kg5 Beg6 Na8 Kf2 Kh4 Be8 Ra6 Ng6+ Kh3 Bg5 Kh2 Nf4 Ra4 Qa2 Nc2 Bef7 Bb8 Be8 B1e2 Qc6 Ra6 Qb2 Raa1 Ra7 Bbc7 Qd7 Be4 Qbb5 Bc6 Qb7 Ba4 Qb2 Bd3 Be2 Bb3 Rd1 Ne1 Rc1 Kh1 Kg3 Bd1 Qd2 Bf5 Qe3 Bf1 Qe4 B5h3 Bd3 Bhg2 Qe2
7Q/n2k4/KQ1b4/N2NQrB1/1PNP4/b1QQ2r1/R2pqRb1/1nnbbB2 b - - 0 1 illegal: No proof kernel
r1B5/3rNB1n/2Q1Qb2/1K1PN1kb/6Q1/Q1RnBrnp/1PRr4/Q3r2q b - - 0 1 illegal: No possible last move
r3Q1N1/NQ6/B2n3n/N1pKRBq1/PR1n4/2r1B1b1/n1P4N/2bNbnk1 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h3 d5 exd5 f5 Bd3 Bd7 Bc4 Bb5 Bf1 Be2 gxf5 g4 Rh2 g3 Rh1 Bg4 hxg4 Ra3 Bb2 Ra6 Bc1 Ra8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 a4 h5 d6 c5 f6 e5 d7 b5 f7 b3 Qf3 b4 Ba6 h4 Nc3 g2 Rb1 h3 d4+ Kh4 d5 b2 g5 h2 d6 b3 g6 Qg5 d8N Bg7 f8N Bh6 d7 Nc6 g7 Nd4 Nc6 Rh7 Kd5 e4+ Qf5 e3 d8N e2 f4 Kg3 Be3 e1B Ng6 Rh8 Nf3 g1B Nd1 Kg2 Na7 Bgf2 Nb7 Bg3 Ne7 Rh7 Rf1 h1N Nh2 Nf2 Na5 Ne4 Rf2+ Kh1 Re2 Nd6 Qe5 Rh8 f5 Rh7 f6 Rh8 Nf2+ Kg1 f7 Rh7 f8Q Rh8 Ra1 b1N Qb8 b2 Qb7 Nd2 Rb1 Nf1 Nd1+ Bgf2 Ra1 b1N Ra3 Rh7 Rb3 Rh8 Rb4 Rh7 Nf5 Rh8 Qe8 Nc3+ Ke5 Na2 Kd5 Qf4 Ne7 Bg5 Rb5 Rh3 Rb4 Nh6 g8B Qf6 Be6 Qg6 Bc1 Rc3 Bf5 Bg3 Re5 Be3 Ng8 Qg5 Ba3 Bc1 Bb2 Re3 Bc3 Rd3 Bd2 Rc3 Be3+
nBq3b1/B1rR4/Nk6/b1p1QP2/1br1B1P1/2N2b2/1Knr1R1b/1B1BQ2N b - - 0 1 illegal: No possible last move
1R3b2/8/1RBN4/p5Rb/Qbrrr2Q/1r1Rn1Pn/1BPN4/K1NRqr1k b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 h5 f4 a5 b6 d5 g6+ Kf6 b5 e5 b7 h4 g7 h3 b6 h2 g3 e4 Ra2 e3+ Kd3 e2 Nd2 e1B Ra1 Rh4 Ba3 Qe7 Bc1 Na6 b8R Nh6 g8R Ng4 b7 Ne3 Bb2 Nc7 Ra3 Ne6 Qh5 Ng5 Ne2 Nh3 Rg5 Qe6 Rg1 h1R Bg2 Bd7 Rf1 Be8 Nc1 Qe7 Qh7 Bh5 Rb3 Rh2 Rb6+ Qe6 Rd8 Rb8 Qd7 Rh1 Qa4 Rg4 Rf3 Rf1 Rdd6 Rc8 b8R Rc4 Rdd8 Kf7 f6 Rh4 Re5 Kg6 f5+ Kg5 f7 Re4 f6+ Kg4 Rdd6 Ng1 Bh1 Kh3 Rg5 Kh2 Rd7 Nh3 Rdd8 Bg7 f8N Qe8 Ne6 Bf8 f7 Qe7 Nb1 Bb4 Ng7 Qe8 Nf5 Kg1 Bc3 Qe7 Kd2 d3 Nd6 d4 Bg2 Bh6 f8Q Qe6 Qh8 Bf8 Rff5 Qe7 Rd5 Rf3 Ke1 d2+ Ke2 d1R Nd2 Rdf1 Kd3 Bg6 Qh4 Bh5 Ndb3 Kh2 Kd2 d3 Bh1 Bc5 Bb2 Ba3 Rd7 Bb4+ Bc3 Qg7 Nf5 Re8 Na2 Nd1 Kc1 d2+ Kb1 Qe5 Bb2 Qe1 Nac1 Rd3 Bg2 Ne3 Ka1 d1R R5d6 Rdc3 Bc6 Ree4 Rd4 Rd2 R7d5 Kh1 Nd6 Rdf2 Rd1 Rd2 Rd4 Rdd3 Nd2 Rb3 Nf3 Rdc3 R4d2 Rcd4 Rd3 Rcc4 Nd2
b1Nk4/Qqb1B2B/6PN/Nr1B4/2p2n2/Nr1nRrn1/P4Rn1/2NK2nQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 b5 f4 c5 g4 h5 g6 e5 d6 c4 g5 e4 d5 h4 f6 e3 f7+ Kd7 g7 h3 f5 e2 f6 h2 g6 b3 Ba3 b4 Bg2 Ne7 g8B b2 Bh7 b3 Qc1 Bh6 f8Q Qb6 f7 Bb7 Qg7 Bf4 f8N+ Kd8 d7 Bc7 Bb4 Qa7 Na3 b1N Qd4 Qa6 Qa7 Nd2 Rb1 Bc6 Rb2 Qb7 Rc2 b2 Rc3 b1R Re3 Na6 Bc5 Bf4 Be4 Kc7 d8N Rb5 Nd7 Nb4 Nf7 Rhb8 Nh6 Kd8 d6 Ned5 Nb6 Be5 d7 Nf4 Qb1 Bc7 Nc8 Bd5 Bg2 Bc6 Bd5 Nf3+ Kf2 e1N Ne2 Ng1 Nc1 Neg2 Qa1 Nh4 Ke1 Nhg2+ Kd1 Nbd3 Qb1 Nf3 Rg1 h1N Rf1 Ng1 Rf2 Ng3 Qb6 Raa5 Qa7 Nb4 Qe4 Nbd3 Qf3 Rb3 Qh5 Rab5 Qh1 Qa6 Bb4 Ba8 Bd6 R8b6 Bb4 Rf6 Bf8 Be5 Bc5 Qb7 Be7+ Kc7 d8N Kd7 Nc6 Bc7 Bc5 Rf8 Na5 Kd8 Kc2 Nfe2 Kd1 Rf3 Bb4 Nef4 Be7+
N1qr1QK1/1k3BQ1/1rrPB3/4p1bR/n1n3Q1/1bbP2BQ/4RbNQ/1b6 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 Kc7 b4 h5 g4 e6 f4 a4 d6+ Kb6 g5 c4 f6 h3 g6 a3 f5 h2 f7 c3 f6 a2 g7 c2 Ne2 h4 Na3 h3 Nc4+ Ka7 b6+ Kb7 Nf4 Rh4 Ng2 Bd7 Qg4 Ne7 g8B Bg7 f8Q Rh6 Bf7 Qc8 Qh8 Bf8 Qhg7 Nd5 Ba3 Bb5 Re1 c1B Re2 a1B+ Bb2 Nc3 Ba3 Kc6 b7 Ba4 Nb6 Bb3 Bb2 Ra6 Na8 Na4 Bc3 Rb6 Bd4 Na6 b8Q Nb2 Bf2 Nc5 Bg3 Nca4 Qa7 Rg6 Qa6 Rh6 Qd3 Kb7 Qdf5 Rh8 b5 Be7 d3 Be3 Qfh7 Rd8 Qhh6 Rc6 b6 Bf2 Qhh4 Ba2 Qhh8 Bb1 Qhh6 Ka6 b7 Rb6 b8Q Nc4+ Ke4 e5 Kd5 Rc6 Qb2 Rb6 Qbd2 Bc3 Qa2 Kb7 Qc2 Qc5+ Ke6 Qc6 Be8 Qc5 Kf7 Qc8 Kg8 Rc6 f7 Bg5 Qgh8 Rb6 f8Q Rc6 Bf7 Rb6 Rg1 h1B Q6g7 h2 Qhh3 Rc6 Ne3 Bd5 Rh1 Rb6 Bg2 Rc6 Be4 Be6 Bf5 Bd5 B5e6 Rb6 Rd1 h1R Ng2 Rf1 Rdd2 Rc1 Rd1 Na5 Rde1 Bb3 Rh1 Nc4 Qd2 Bf6 Qdh6 Bg5 Qh2 Rc2 Q6h3 Ncb2 Qhh5 Bcd2 Qg1 Rcc6 Rh3 Bb4 Qh2 Nc4 Rh4 Bc3 Qgh3 Ra6 Q5g4 Rab6 Rh5
QnK2BR1/2b1R1Q1/1bP1Q3/b1n4N/1R3N1n/5bqr/BQ3pPb/3k2Qr b - - 0 1 illegal: No possible last move
4r2B/1nb4K/1RpN1PQ1/5b1n/NbR5/6bn/RQP1RN1R/B1qkrb2 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 Na6 gxf5 Nb8 Bh3 Ba6 Bg4 hxg4 Ra5 Bb7 Ra1 Bc8 Kd2 Kf7 Kd3 a5 Ke4 g5 b4 c6 f4 d6 h4 a4 b6 a3 f6 Kg6 f5+ Kh5 b7 a2 e6 g3 f7 Kg4 e7 g2 e8N Ra4 h5 Ra3 h6 Na6 Nh3 g1N b8R d5+ Ke5 d4 e4+ Kg3 b5 d3 b6 d2 b7 g4 h7 Nc5 Rh2 Nf6 Nc3 Nh5 Bb2 Qg5 Na4 Re3 Nd6 Re1 Nf2 Nh3 Qb1 Qe3 f6 Kf3 Ra8 Ke2 b8R d1B Rb6 Ba6 Kf5 g3 Kg6 g2 e5 g1B e6 Qc1 e7 Nb7 e8R+ Kd2 Bd4 Bf1 Qb2 Bg4 Rb1 Be7 f8Q a1B Qg7 Bf5+ Kh6 Bd8 Qg6 Bc7 Ra5 Rg8 h8B Rf8 Ree5 Re8 Rec5 Ke2+ Kh7 Kd2 Rc4 Ke2 Qa2 Bc3 Qb2 Bb4 Ra1 Kd2 Ra2 Ke2 Re5+ Kd2 Ng4+ Kd1 Ree2 Bf2 Qb3 Be4 Ba1 Bf5 Qb2 Bg3 Nf2+
KBQNBBB1/3bn2r/b1p1PN2/kb2R2R/Pb1n3Q/2n2B1Q/r1q5/b7 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 Kf2 Kd7 Ke3 g5 Kd4 b5 e4 f5 a4 b4 h4 f4 a6 g3 h5 g2 d6 Kc6 h6 Kb6 Kd5 f3 d4 g4 a7 b3 e6 b2 d7 f2 e5 g3 h7 Qe8 d8Q Ba3 e7 Bb4 Qf3 Bc3 Nh3 g1B Ng5 g2 Ne6 Nh6 Qh3 Rf8 h8B Rf5 Bg7 Qh5 e8B Bb4 Qdh4 Nc6 Bf8 Ka5 Nd8 Qd1 Nc3 b1B Ne4 Qc2 Nf6 Ba6 Bc4 f1B Bf4 Ng8 Bh2 Rb8 a8B Rh5 Bb7 Ba2 Re1 Rh7 Bb3 Bfb5 Re2 Bc3 Kc5 Nge7 Bg8 Bac4 e6 Ba1 Re5 Bf2 Bg3 Be1 d5 g1N d6 Ne2 d7 Ncd4 Bf3 Nc3 Bf4 c6 Kd6 Rb6 Kc7 Bb7 Kb8 Bc8+ Ka8 Bd3 Nf7 Be2 d8Q Bd7 Qc8 Bc4 Bd5 Ba6 Rh2 Rb2 Nd8 Bcb5 Bf3 Bd2 Rc5 Ra2 Bb8 Nd1 Rh5 Bb4 Re2 Nc3 Ree5
1QN1kNQB/Qn4n1/P1nb3R/bQ2r3/1nn2K2/Q1pB4/1bPR4/2B3qr b - - 0 1 legal: proof: g4 a5 e4 g5 b4 axb4 h3 d5 exd5 f5 Bd3 Bd7 Bc4 Bb5 Bf1 Be2 gxf5 g4 Rh2 g3 Rh1 Bg4 hxg4 Ra3 Bb2 Ra6 Bc1 Ra8 Ke2 c5 Kf3 b5 a4 h5 d4 e5 d6 c4 f6 b3 d5 h4 a5 h3 g5 g2 g6 e4+ Kf4 b2 g7 e3 a6 h2 Qe2 b4 Nd2 b1N Nh3 g1B Ne4 b3 Nhg5 b2 Nh7 Ne7 g8Q Na3 f3 b1N f7+ Kd7 Qf2 Nf5 Bd3 e2 Qa7+ Qc7 Qg5 e1B Qg8 Bg7 f8B Bb2 Bg7 Nd2 Nf8+ Ke8 Bf6 Rh6 Bh8 Qb6 Rb1 Bc5 d7+ Kd8 Ra1 Nc6 Nd6 Ne4 Nc8 Ba5 Rd1 h1N Rd2 Be7 Qg5 Qg1 Rb1 Bbf6 Rb6 Ng7 Qe5 Nd6 Qb2 Nb8 Qb5 Nb7 Re6 Rh2 Rd6 Ba1 Rh6 c3 Nb6 Ng3 Nh7 Ne6+ Ke5 Beb4 f4 Ke7 f5 Ne2 d6+ Kf7 d8Q N2d4 f6 Rh1 d7 Bb2 Qc7 Nc4+ Ke4 Be7 d8Q Ng7 Kf4 Ndc6 Nc8 Nb4 Nb6 N8c6 Qce5 Bf8 Qec5 Na2 Qa3 Nf5 Qdd6 Re8 Nc8 Re5 Qdb8 Ke8 f7+ Kd8 Qd5+ Bd6 Qb5 Nab4 f8Q+ Kd7 Qg8 Ng7 Nf8+ Kd8 Be4 Ke8 Bd3
4b2Q/b3N1bP/3b3B/qr1R3B/3RNnPK/3N1p2/Q2n1r1B/1Br1Bkb1 b - - 0 1 illegal: No proof kernel
1r1Bk3/Br1Q1rbp/4b1P1/3B2QP/4N2R/Rq1r1r2/1N3N1K/n1b1BB1n b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 Ba6 fxg5 Bc8 Kf2 e5 Kg3 f5 h4 a5 c4 e3 d4 e4 d5 e2 c6 e1B+ Kh2 e3 g4 a4 g6 e2 b6 a3 g7 a2 d6 f4 c5 f3 c7 f2 c6 Nf6 g8B Ra3 h5 Ba6 c8N Nbd7 g5 Rf3 g6 Bc4 c7 Be6 b7 Ne4 b8B Ng3 Na3 Bg7 Nh3 Nc5 Bd2 Nb3 Ba7 Qg5 Qc2 Qb5 Qc5 Qb6 Bc3 Bd2 Qg5 e1R Nc4 Rb1 Nb2 Bc1 Be1 Qb5 Bd3 f1R d7+ Kf8 d8B Ke8 Bc4 Rd3 Bd5 Rf7 Nf2 Qc4 Bg2 Rff3 Bf1 Qa4 Rg1 Nh1 Rg4 Rde3 Rh4 Kd7 Bb6 Bc4 Bf6 Rd3 Nd6 Qb4 Bf7 Rb8 Nde4 Bd5 Be6+ Ke8 Na4 Rb2 Bd8 Qb5 Bc8 Be6 Bb7 Qd5 c8Q Qb5 Rb1 a1R Bd5 Raa2 Be3 Na1 Qb7 Rb4 Rb3 Qc4 Nb2 Ra7 Ra3 Qb3 Qc8 Raf7 Ba7 R4b7 Qd7+
1rR3BQ/4Kprn/N1Nn1r1q/k3P2B/3R1Qn1/bn2Q3/b1B4P/B1Bn4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kf3 d5 Kf4 Kd7 Kf5 Kc7+ e6 Kb6 c4 g5 b4 g4 e4 g3 h6 a4 c5+ Ka7 b6+ Kb7 h7 a3 b5 d3 Qf3 g2 Nd2 a2 Nb3 d4 Be2 d2 Qe3 d1N Bh5 d3 Ne2 g1N Ned4 d2 Nc6 Ne7+ Kf6 Nf5+ e7 Qd7 e8B Rg8 h8B Nf3 Rf1 Ng1 Rf4 Qd3 Bd7 Ne7 Bf5 Nh3 Bh7 Rg7 Bg8 Be6 Rb1 a1N Rh4 Kc8 b7+ Kc7 Rb2 Nc8 Rc2 Nd6 b6+ Kd7 Rg4 Ng5 Rc4 Qf1+ Rf4 Qh3 Rg4 Na6 b8Q Nb4 b7 Nd3 Rc3 N3f2 Rh4 Nc4 Qbf4 Nd6 b8Q Bd5 Qe8+ Kc7 Rc4 Rb8 Rd4 Nb2 Rg4 d1R Rg2 Nfd3 Rc2 Rf1 Qe5 Qh4 Ne7 Qg4 c6 Kb6 c7 Qh4 c8B Rh7 Bhg4 Rf2 Ra4+ Kb5 Nc5 Ba2 Qff3 Nb3 Bcf5 Ndc4 Rc3 Nd1 Na6+ Ndc5 Bg6 Qh6 Bh5 Rf1 Q5d4 Ne5 Rcc4 Nb7 Rc8 Rf2 Nc6 Ba3 Rc4 Nd6 Ke7 Ng4 Be5 Re2 Qf6 Rc2 Qh8 Rg7 Ra4 Rc5 Qf4 Kb6 Qde3 Nh7 Ba1 Kb5 Rc4 Rf5 e5 Rf6 Rd4 Kb6 Bc2 Kb5 Na7+ Ka5 Nc6+
n3Q1b1/q2P2rR/2nB1N1Q/rb2Pk1n/5p1b/R3bbB1/3B2B1/KB2NQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 c5 Kd2 h5 Kc3 a5 g4 f5 b4 f3 Kb2 a4 g6 Kf6 b6 c4 d6 f2 d5 h4 b5 h3 d7 h2 g7 Nc6 g5+ Kg6 b7 Rh6 b8B Rh7 b6 Ra5 b7 Be7 d6 Qc7 d8Q Be6 d7 Nf6 g8Q+ Rg7 Bd2 Nh5 Bg2 f1B Ra3 c3+ Ka1 c2 Qdf8 c1B Nf3 Bb5 Nc3 Qb6 Qe1 Qa7 Bg3 f4 b8B Bec4 Qh8 Bg8 e5 Bf6 Qf7+ Kf5 Qe8 Be7 g6 Bh4 Ra2 a3 Ne4 Bd8 Qh6 Bh4 Rf1 h1B Nf6 Qb7 Bd6 Qa7 Rc2 a2 Rc3 Qb8 Ra3 Qa7 B2b4 Be3 Bd2 Nb4 Rg1 Na6 Qf1 Nc7 Ne1 Na8 Qf3 Rf7 g7 Re7 Qf1 Rf7 Kb2 a1N Kb1 Nc2 Ka2 Nd4 Ka1 Bh7 g8B Rg7 Ba2 Nc6 Bb1+ Bd3 Bd5 Bf3 Rh1 Bg8 Rh2 Bg4 Bg2 Bf3 Rh3 Bg5 Ne4 Bb5 Qh8 Nf6 Rh6 Bh4 Qh7+ Rg6 Qg7 Nh5 Rh7 Rg5 Qh6 Rg7 Nf6+
Kb3qkn/BQP1R3/3r1Bb1/4N1rn/n1RbB1N1/b6P/5bQp/Q3Q2Q b - - 0 1 illegal: No proof kernel
b1r2bRR/1qPr2Rr/1p2n2k/2N2BNP/Q1Q1QB2/2b3b1/3n3Q/1bKQ4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 d5 c4 e5 f4 g5 h4 Kg7 a5 b6 f6+ Kh7 a6 g4 a7 g3 f7 d4 c6 g2 h6 b3 c5 b2 f5 d3 f6 e4 c7 Qe8 c6 Nd7 Nc3 b1R Nh3 g1B Na4 Bh2 Nc5 Bb7 c8Q Bg3 Ng5+ Kg6 h7 Kh6 h5 Qe7 Rg1 Rb3 Qe8 Rc8 Bh3 Ba8 Bf5 Rb4 Rg2 Rd4 c7 e3+ Kc3 e2 Kb2 e1B Bf4 Qd8 Kc1 Bc3 Qe4 Rd6 Qea4 Qe8 Rg1 Qe4 Ra2 Qb7 Rag2 Be7 Qe4 Nf8 Qc4 Ne6 f8Q+ Ng7 f7 Rd7 Qe8 Nf6 f8Q Ne4 Qff7 Nd2 Qa2 Bd6 Qe4 Bf8 Qfc4 Ne6 Qb2 Rg8 Qbc2 Rgg7 h8R+ Rh7 Q2a4 Bf2 Rg4 Be1 Qh1 Bg3 Qh2 Nb1 Re1 d2+ Kc2 Qd5 Re5 Bc6 a8Q Nd8 Re7 Ne6 Rf7 Qg2 Qb7 Bf3 Qbd5 Qh1 Qdd3 Ba8 Q3e2 Qb7 Qee4 Bd6 Rff8 Be7 Rfg8 Bf8 Qdf3 d1B+ Kc1 Bc2 Qd1 Nd2 Nh3+ Ng5 Be5 Ne6 R4g7 Bd3 Ng5 Bb1 Bf4
R1rN1N2/1npB1b1B/1k4b1/4n1b1/1Q1RB1qR/1QP1n3/2r3RP/K3Rnn1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Nc6 g5 Nb8 g6 Qf6 Be3 Qd8 Bg5 hxg5 Kd2 d5 Kc1 Kd7 e4 a5 b4 f5 Kb2 a4 e6+ Kd6 c3 g4 e7 f4 e8R f3 e5+ Kd7 e6+ Kd6 e7 d4 b6 Kc6 b7 d3 b5+ Kb6 Nd2 g3 Nc4+ Ka7 Bg2 f2 Ne2 f1N Be4 d2 Na5 g2 Nc6+ Kb6 Nf4 g1N Ne6 Qd4 Ncd8 Nh6 g8R Ng4 g7 Ne5 Qb3 Na6 Re1 d1B Ka1 Nc5 b8R+ Nb7 Qb4 Ra6 Ra8 Bc2 Rd1 Qc4 Rd4 a3 Qb3 a2 Qb4 Rh3 Rh8 Re3 g8B Re2 Rh4 Bh6 Nf8 Be6 Bgh7 Bg5 Qb3 Bf7 Qb4 Nh3 Rg1 Ra5 Rg2 Ng1 Bc6 Bcg6 Be4 Rc2 Qb3 Kc5 b6 Qe6 Rgd2 Qg4 Rg2 Nd6 b7 Ra7 b8Q Nb7 Rd1 Ra6 Re1 Rb6 Ra4 Rb5 Rd4 Kb6 Nfe6 Rb4 Rh8 Rb5 e8B Rb4 Bb5 Ra4 Qc8 Ra8 Nf8 Rb8 Qd7 Rc8 Qe7 Rc1+ Kb2 a1N Qeb4 Nc2 Rg8 Nce3 Ka2 Rc2+ Ka1 Bc4 Nfe6 Nf7 Nc6 Ne5 Re8 Rd8 Nf8 Rd6 Rb8 Rd8 Ra8 Rc8 Nd8 Bcf7 Bd7#
3rQ1bN/1RB1nQ2/1nb1Nb2/1B3R1N/1rPq1PKp/3BB1b1/1r4nB/7k b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 b4 d5 g4 h5 g6+ Kf6 g7 a5 b6 h4 b7 a4 b5 a3 b6 d3 Qe1 d4 Nh3 d2 Ng5 d1N Nc3 d3 Ne2 a2 Ng3 d2 Bb5 Be6 c4 Qd4 Nf7 Nd7 b8B Ne7 g8Q Ne3 b7 Ra4 Rb1 a1R Rf1 Ng2 Bc7 R1a2 b8B d1B+ Qe2 Nb6 Be3 Bc2 Qh7 Rg8 Nh8 Rb4 Qh5 Ba4 g5+ Kg7 g6 Kf6 g7 e4+ Kg4 Rab2 Qf3 Bd5 Qe8 Bf7 Bd2 e3+ Qf4 e2 Be3 e1B f3 Ng6 Rf2 Bc5 Rf1 Rf8 g8B Be7 Bh7 Bg8 Rf2 Kg7 Rf1 Bf6 Rf2 Ne7 Rf1 Bg5 f6+ Kh6 f7 Bf2 Nh5 Bg3 Qd8 Re8 Bd3 Rf8 Qd7 Re8 f8N Rd8 Ba6 Bc6 Ne6 Qd5 Qf7 Qd4+ Nef4 Bf6 Qde8 Na4 Bb5 Nb6 Ra1 Qc5 Ra7 Qd4 Kh3 Kg5 Rb7 Be1 Be2 Kf5 Ne6 Bf2 Bh2 Be1 Bbc7 Bg3 f4 Ke4 Ra1 Ne1 Ra5 Ng2 Bd3+ Kf3 Bc1 Kf2 Kg4 Ne1 Bd2 Kg2 Be3 Kh1 Ba4 Ng2 Rf5 Bd5 Bc6 Be4 Ba4 Bc6 Bb5
1Q6/3RN1R1/r3nr2/BqQ2n1P/2bpk3/1N1B2nB/1r1RBrbP/b1BK4 b - - 0 1 illegal: No possible last move, all moves rejected
2BK3N/R1N1nQQ1/n1N5/2B1rkP1/3Rnr2/qb3bPp/1N2N1r1/2b3rB b - - 0 1 illegal: No possible last move
QNR1Q2B/B3R3/3r1n1K/P4P2/r1B1bkBp/b1N1qrQ1/2n4n/1Bb3n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kh5 b5 d4+ Ke4 a4 e5 g4 c5 f4 h6 d6 b3 d7 c4 f6 c3 d5 c2 d6 b4 a5 b2 g6 b3 g5 Ne7 g7 Nec6 g8B Ra6 f5 Qb6 d8B Nd4 d7 Bb4 g6 Ba3 f7 Nf3 f8Q Nh2 g7 Bb7 Be3 c1B Bf6 Bc6 d8Q Nd7 Bf2 Kf4 Bgc4 e4 g8B e3 Qe1 e2 Nf3 Qe3 Nc3 b1R Bh3 b2 Ne5 Be4 Qde8 Rd6 Nc6 Rh7 Qg1 e1N Bh8 Nc2 Nb8 Nf6+ Kg6 h5 Bg4 Rc7 Kh6 h4 Ba2 Rb7 Bgc4 Rb4 Qg2 Ra4 Re1 Bd2 Re2 Rf1 Rc1 b1N Bg1 Rf3 Bf2 Qd3 Ba7 Qe3 Ree1 Nd4 Rc2 Bdc1 Ree2 Nd2 Bb1 Ndf1 Re1 Ng3 Qg7 Nge2 Qb7 Qd2 Qa8 Ng1 Qh3 Bb7 Re7 Be4 Rb2 Qe2 Rb6 Nc2 Rc6 Qf2 Rc8 Qe3 Qg3+
1N1NN1kr/R1Q1rb2/b1B1p2N/n2Q3N/2r1nbP1/3BP1n1/6R1/1qb1KB2 b - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 dxc5 h4 axb5 g6 Be3 g5 Bf2 Nc6 fxg5 Nb8 g4 Ba6 Bg3 hxg3 Qd3 Bb7 Qd1 Bc8 h4 a5 b4 d5 c4 f5 h5 Kf7 c6 e6 h6 g2 g6+ Kf6 c7 a4 g7 Kf7 h7 f4 b6 a3 c5 a2 b5 d4 e3 d3 c6 f3 b7 Be7 b6 Bf8 Rh2 Qe8 Nc3 Bd6 Nh3 g1B Nd5 Ba3 Nf6 Ra7 Nf4 Bc1 Rg2 Bh2 N4h5 Bf4 Qb3 Qe7 Ne8 Nf6 g8N Ne4 Qd5 Qc5 Ne7 Qb5 Nf5 f2+ Kd1 Bd7 c8B d2 c7 Nc6 b8Q Na5 Bb7 Qb1 c8B Ng3 Bd3 f1B Bc6 Rc7 b7 Kf8 Ba4 Rc4 Qc7 Bb5 b8N Bd7 Ned6 Be8 Ba6 Bf7 Bc6 Qb5 Rb1 a1R Ne8 Raa4 Ra1 Qb1 Ra2 Ra3 Rb2 Ra2 Rb7 Rb2 Ra7 Rb7 Qce5 Re7 Qc7 Re4 Bc2 Bb5 Bd3 Rc4 Bf1 Nh1 Ke2 d1N Ke1 Ng3 Bd3 Nf2 Bf1 Rg8 h8N Nfe4 Bd3 Bg6 Nf7 Rh8 Nd8 Bf7 Bf1 Kg8 Bd3 Rc3 Bf1 Be2 Bd3 Rc5 Bc2 Ba6 Bcd3 Rc4 Nh6+
4Nqb1/2R1bQ1n/1pK1kN2/2Q5/NRP2BNr/1bNn1r1n/Pr3R2/3B3r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 e5 Ke4 g5 Kd5 b3 f4 g4 h4 d6 c4 b2 h6 e4 c6 e3 h7 e2 f6 e1N c7 b6 h5 g3 h6 g2 f5 Bg7 Rh2 Ra4 Be2 Nd7 Nc3 b1B Kc6 d5 Bf4 Nd3 Qf1 d4 Bd1 Bc2 Nge2 g1R Rb1 Ra3 Rb4 Ra6 Rf2 Ra3 Na4 Nf8 Nec3 Be6 c8R Rg2 Rc7+ Qe7 Qg1 Ng6 Qf1 Bf8 Qg1 Ke8 f7+ Kd8 f6 Bb3 Qe1 Rh2 Qe5 Rh4 Qc5 Rh1 Bg3 Ngf4 Bh2 Nh3 Bf4 Bg7 f8N Bf7 Nd7 Bf8 Qd6 Qe8 Qe5 Be7 Qc5 Qf8 Ne5 Be6 f7 Nf6 Ng4 Rh2 Rf3 Rb2 Rf2 Qg7 f8N Bg8 Nd7 Qf8 Rg2 Ke8 Rc2 Kf7 Rf2 Ne4 Ndf6 Neg5 Bf3 Ke6 Be2 Bd6 Bd1 Be7 Bf3 Bc2 Nd1 Ne1 Nh5 Re3 Ndc3 d3 Be2 d2 Bf3 Bf7 Be2 Rg8 h8N d1R h7 Bb3 Nhf6 Nd3 Bf3 Rh1 Bd1 Bg6 Nf7 Rf3 h8Q Bh7 Qg7 Rh8 Nd6 Bg8 Qg6 Rh4 Nde8 Nh7 Qf7+
B3rnR1/BKR2R2/pNB2nb1/3Qb3/krN2Bq1/5b1Q/1PPrn2B/7n b - - 0 1 illegal: No possible last move
4B1bQ/5R1P/5P1Q/rbQK4/2r1r1pk/1nBRQ1n1/3NN2b/rn2R1qQ b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 a5 f4 g5 c4 d6 b4 d3 b6 d2 h6 a4 b5 g4 c5 a3 b7 a2 h5 Ne7 c6 Bd7 c7 Nbc6 b8Q Ra5 c8Q Nd4 h7 Nb3 b6 Bb5 b7 Qb6 Ne2 Qg1 h6 Bg7 Qcc2 Rc8 Qa7 Rc4+ Qd4 Bf8 b8R Bg7 Qe1 d1N Rh3 Bh8 Bb2 d5+ Kd3 Bg7 h8Q Nc3 Nd2 Nb1 Qe3 d4 Ke4 d3+ Bd4 Bd7 h7 Bb5 Qc8 Bh6 Rb7 Bg5 Ra7 Bh4 Qcc1 Bg3 Qc5 Bh2 Qed1 Nc8 Rg3 Nd6+ Kd5 Ne4 Rh3 Ng3 Bc3 Na3 Rb1 a1R Bg2 Qh1 Qb2 Qg1 Rc1 Nb1 Rd7 Qf2 Qh1 Qf1 Re1 Qg1 Nf3 d2 Rg7 d1B Nd2 Nc1 Be4 Bb3 Bc2 Ba2 Ba4 Nb3 Rc7 Ba6 Be8 Bb5 Rd7 Ne4 Rf3 Ng3 Rd6+ Kg7 f6+ Kh6 f7+ Kh5 f8Q+ Kh4 f5 e4 Qed4 e3 Rd7 Rca4 Rf7 Rc4 f6 Raa4 Qh8 Ra5 Nf4 e2 Rd3 Raa4 Qc1 Ra5 Rd1 e1R Qe3 Rf1 Ne2 Rff4 Re1 Rfe4 Qh6+ Nh5 Nf1 Rb4 Rc7 Rba4 Qcf4 Nc1+ Kd6 Bg8 Nd2 Nb3 Rf7 Rab4 Kd5 Rbc4 Q6g7 Ng3 Qfe3 Rf4 Qgf8 Rfe4 Qfh6+
1Q2RB1B/Q2k2Pq/n1b3p1/KRrr3Q/2NB1r1n/3N2P1/3BBr1n/b6b b - - 0 1 legal: proof: h4 f5 b4 d5 c4 a5 cxd5 axb4 e4 g6 exf5 Bg7 h5 Bf8 h6 Qd6 Qe2 Nf6 Bb2 Ng4 a4 Rg8 Bh8 Qf6 d4 Qg7 hxg7 e5 Kd2 b5 f4 h5 f6 c5 f5 c4 a5 e4 a6 b3 Kc3 h4 d6 h3 Kb4 e3 a7 b2 d5 h2 g3 c3 f7+ Kd7 f6 c2 Qf3 c1R Nh3 e2 Nf2 e1N Ra5 Be7 f8B Rc5 f7 Bb7 Na3 Ng2 Nc4 Bf6 Nd3 Bc6 Be2 Nh4 Re1 h1B Be7 Rd8 f8B Nh2 Qh5 Be5 Bg5 Bf6 Bd2 Na6+ Ka3 Rac8 a8Q b1R Qb8 Rc1 Qa7+ Rc7 Kb3 b4 Rb5 Rc2 Ka4 b3 Ka5 b2 Qe5 Rb7 Qh5 Kc8 d7+ Kc7 Bd1 b1Q Re8 Ba1 Be2 Qf1 Re3 Qh3 Re8 Rc8 d8B+ Kd7 d6 Rd5 Bf6 Rbc7 Re5 Re8 Re3 Re4 Bd4 Rf4 Nce5+ Ke6 d7 Rcc5 d8Q Rcf7 Qda8 Rf2 Q7b8 R7f4 Nc4+ Kd7 Re8 Nf5 Qg4 Qh7 Qh5 Nh4 Qaa7+
1RQn1qb1/2R1BPP1/2RK4/2Nb4/pnQ1RR1k/4rrb1/2B3rN/n4bQ1 b - - 0 1 illegal: No possible last move, all moves rejected
R1b3k1/BNP1nq2/N4R2/KbrNNR1p/1nB1P2n/1Qb3Qr/N7/2n2r2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 g4 f5 b4 Kf7 c4 d5 e4 h5 b6 d3 Kc3 f4 c5 a4 e6+ Kg7 e7 a3 e8N+ Kf7 b7 f3 b5 f2 Kb4 d4 b6 d2 g6+ Ke6 g5 d3 g7 Kf7 g6+ Ke7 c6 a2 c7 Na6+ Ka5 Rh6 b8R Qd7 Qb3 d1N b7 d2 Nf3 Ne3 Nd6 d1R Bc4 f1B Nc3 Ng2 Be3 Nh4 Ne5 Nb4+ Ba7 Re1 Rd1 a1N Rd5 Ke6 Na2 Ne7 g8N Bg7 Nf6 Bd3 Bb5 Rf1 Bc4 Qe8 Rh3 Qf7 Rf3 Bh8 g7 Be2 Ba6 Bb5 g8Q Rg6 Rf4 Rg3 Qg6 Rh3 Qgg3 Nac2 Rf3 Nd4 Rf5 Ne2 Rd2+ Bc4 Nd5 Nc1 Rdf2 Bb5 R2f4 Be8 Bc4 Bb5 Nd7 Bc3 Ne5 Bcd7 Rh8 Rd8 b8N Bc8 Nb7 Rd6 Nf3 Rc6 Ne5 Rc5 Na6 Qf6 Ng6 Kf7 Re8 Kg7 Ne5+ Kh7 Rd8 Qf7 Rf6 Bg4 Rb8 Bc8 R4f5 Kh8 Ra8 Kh7 Qe1 Kg8 Qg3+
2bB1K2/n1P3N1/1PQp3r/b2B4/RN1brR1k/2n1N1r1/2q1Q1rn/1Q2QQ2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 e5 Kd5 a5 h4 g5 b4 a4 c4 d6 f4 a3 h6 a2 b6 e4 h7 d3 c5 d2 h5 e3 b7 e2 b5 e1B c6 g4 c7 g3 h6 g2 Nf3 g1R Nc3 Na6 b8Q Bg7 Nh2 Qe7 Qe2 d1N Ng4+ Kf7 f6 Kg6 f5+ Kf7 Bg5 Qd7 Bg2 Rf1 Ne3 Rf3 Rf1 Ke8 f7+ Kf8 Bd8 Rh3 b6 Qe7 Qb7 Qg5 Qc6 Rg3 Be4 Bb7 Ke6 Nf6 Ncd5 Nb8 Nb4 Ra4 Bd5 Ng4 Rf3 Rg8 h8Q Nh2 h7 Bd4 Qe5 Nc3 h8Q Qg6+ Qhf6 Qh7 Qg6 Rh8 Rf4 Bd2 Raf1 a1R Rh4 Rg2 Qeg3 R1a3 Qge1 Rf2 Qg1 Rg2 Qh1 Kg7 Ke7 Ba6 f8N Bc8 Rg4+ Qg6 f6+ Kh6 f7 Kh5 Ne6 Qc2 f8Q Rh6 Rf6 Rb3 Qb1 Rba3 Qhe1 Rb3 Rg3+ Kh4 Ng7 Rba3 Qf7 Rb3 Kf8 Rba3 Qcc4 Nc6 Qd7 Na7 Qdc6 Ra6 Q2f1 R3a4 Qce2 R6a5 Bc4 Rg5 Rgf3+ R5g3 R3f5 Qe4 Ra5 Qc2 Ra6 Ra5 Ba2 Re5 Ra4 Re4 Bd5 Na2 Nd3 Ba5 Nb4 Nc3 Rf4+
K1R3r1/NPbbQ1b1/1k1rNn1r/2BQ3B/2Q4n/Rp2Q3/1R2Q1qP/4nn2 b - - 0 1 illegal: No possible last move, all moves rejected
1nbb4/P1k1Q1nQ/2B1r1b1/1n5R/2R2K1N/1r1P3r/N1r2Nqp/B1BNN3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 e5 g4 b5 a4 h5 d3 c5 a5 b3 a6 c4 f6 e4+ Kf4 h4 f7 e3 d6 c3 a7 c2 g6 h3 g7 b4 g5 b2 g6 b3 Bg2 e2 Bc6+ Ke6 d7 Kd6 Nc3 b1R Nf3 e1R Qe2 b2 Nd1 Be7 f8B Na6 Ra4 Nh6 g8N Ng4 g7 Ne3 Nf6 Nf5 g8Q Ng7 Ne4+ Kc7 Qh7 Nb8 Rc4 Bh4 Be7 Qg8 Bf6 Qd5 Bc3 Bd8 Qe3 Re2 Ne1 Re8 f3 Re6 Nef2 Rd2 Qc5 Rde2 Qe7 h2 Rg1 R2e3 Rg5 Re2 Rh5 R2e3 B1d2 c1N Bf6 Nb3 Bc1 Ra1 Bd4 b1B Bdb2 Ra2 Ba1 Rc2 Qf7 Bf6 Qe7 Nd4 d8N+ Kb6 Kg4 Nb5 f4 Bh4 f5 Ba2 f6 Rh3 f7 Qg2+ Kf4 Bb3 f8N Bf6 Qb4 Kc7 Ng6 Be7 Nh4 Ba2 Nb7 Bd8 Nc5 Bb3 Nce4 Ba2 Rcc5 Bd5 Nec3 Be4 Na2 Bg6 Qg8 Nd7 Qh7 Rb8 Rc4 Rb6 Qf8 Nb8 Rd4 Ra6 Rc4 Ra3 Qb4 Rb3 Qe7+
2r1Qq2/pn1Q1b2/2Q3P1/B2n3N/1Prrb3/Qn3R2/2Q1B1KR/NN2knb1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 g4 Kd6 f4 e5 Kf2 h5 b3 c5 f6 e4 f5 e3+ Kg2 c4 g5 e2 b6 e1R f7 c3 b7 c2 g6 Re4 f6 Nd7 b8N Ne7 Rh2 Nc5 Bd2 c1N Nh3 Nb7 Qc2 Be6 Nd7 Rc8 Ba5 Rc4 Nf4 Bg7 f8Q Bf7 b4 Nb3 Be2 Bh6 Qg8 Qf8 Ra3 Bg7 Nc5 h3+ Kf2 h4 Nh5 Bh6 Kg1 Be3+ Kh1 Qh6 Qa8 Qf8 Qe8 Bg1 Qa8 Nd2 Nb3 Rf4 Na1 Nb3 Rf2 h2 Kg2 h1N Ra2 Nc8 Rf3 Ng3 Rb2 Nb6 Qe8 Bg8 f7 Nf1 Qa4 Re4 Qa3 h3+ Kh1 h2 Kg2 Qe7 f8Q Bf7 Qa8 Rhc8 Ra2 Qf8 Rb2 Kd7 d6 Ke6 d5+ Ke5 d7 Kd4 d6 Nd5 d8Q Rf4 d7 h1B+ Kh3 Re4 Qe8 Rf4 d8Q Rg4 Rf5 Be4 Qdd7 Ke3 Ra2 Rf4 Rf6 Kf2 Rb2 Nd8 Qac6 Ke1 Ra2 Nb7 Rb2 Bd3 Kg2 Rfd4 Rf2 N3c5 Rb3 Be4+ Rbf3 Nb3 Kh1 Nfd2 Rh2 Nf1 Kg2
n1R1B2r/1BQ2R2/4nB1r/3K2n1/4B2p/bB3N1q/PQ2nPbq/2Nnk2N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 Ke3 b5 Kd4 h5 c4 e5+ Ke4 b3 g4 b2 g6+ Kf6 g7 b4 c6 b3 c5 Bb7 Nf3 Qc8 Qc2 Ne7 g8B Rh6 Nbd2 b1N Bg2 b2 Nf1 Nd5 c7 Nc6 Ng3 Nd4 c6 Nb6 Bf7 Ne6 Be8 Ba3 Rh4 Rb8 Nh1 Na8 Kd5 e4 Qd2 e3 g5+ Ke7 g6 Kf6 g7 e2 g8B e1N Rd4 h4 Rf4 d6 Bgf7 Qd7 c8B Nc3+ Kc4 b1Q c7 Bc6 Bb7 Ne2 c8Q Qb2 Qb4 Qe5 Qc7 Rc8 Qb2 d5+ Kb3 d4 Kc4 d3 Bd2 Ba4 Bc3 d2 Rc1 d1N Bd4 Bc6 Bc3 Kg7 f6+ Kh7 Rf5 Qh2 Rf4 Ng5 Bd5 Ne6 f7 Kg6 Bf6 Kh5 Rf5+ Kg4 f8N Rb8 Ng6 Rd8 Nf4 Rc8 Nd4 Nf3 Nd3 Nfg5 Bge4 Kh3 Nf3 Kg2 Rc2 Kf1 Nc1 Rb8 Bf7 Rbh8 Be8 Ng7 Rf4 Qdh3 Bdf7 N7e6 Rc3 Bb5+ Kd5 Bd7 Qd8 Bb5 Rc8 Bd3 Qc7 Bc2 Nd4 Ke1 Bg8 Ba4 Rf5 Bc2 Nf3+ Kf1 Be5 Bd3 Bh7 Ba6 Bc2 Ng3 Rf7 Be2 Nd2+ Ke1 Bb3 Bf1 Be4 Bg2 Bf6 Ne2 Nf3+
kNnrRrqb/2nB1QB1/1B2q3/2r2Q1b/1N1R2rp/2NK1B1P/2r2PB1/8 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 a5 c4 d5 e4 Kd7 b6 Kc6 h3 Kb7 e6 h5 e7 g5 e8N d4 c6+ Ka6 c5+ d3 e5 a4 c7 Kb7 e6 a3 e7 g3 Qc2 g2 Nc3 h4 Nf6 g4 e8Q g3 Na2 Ra5 c6+ Ka8 Nb4 a2 Ne2 g1R Nd7 g2 Bb2 Ne7 Rd1 a1R Qf7 Bg7 Nc3 Na6 Nb8 Bg4 c8B Qd6 c7 Bh5 Bg4 Qe6 c8B Rc1 Bd7 Rf8 Bf3+ Rd5 Re1 Nc7 Re4 Bh8 Rd4 Nc8 b7+ Ka7 Qb1 Rc5 Ba1 Qb6 Ke3 d2 Qbf5 Rc2 Kd3 Qe6 B1e2 Rb1 Bf1 g1Q B1g2 Re1 Bb2 Re4 Ba1 Rg4 Bb2 Qh2 Re1 Qg3 Re3 Qed6 Re8 Qe6 Bc1 d1R+ Bd2 Ra1 Bh6 Ra6 Bg7 Rd6 N8a6 Rdd5 b8B+ Kb7 Ba7 Ka8 Ne4 Rd6 Bb6 Rdd5 Nb8 Rd6 Ba4 Rd8 Bd7 Qgd6 Q7g6 Qg8 Qgf7 Qe6 Nc3+
1q1qQ2N/2b3K1/6R1/B3N2k/BPb2b2/1nr3nB/pNBQBP2/rb1Rb3 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Kg6 Kd4 h5 Ke5 d5 g4 a5 c4 e3 b6 e2 c6 e1B c7 e6 b7 d4 c5 d3 c6 a4 Na3 h4 Nf3 d2 Nc4 h3 Be2 h2 Rg1 Na6 b8Q Bd7 c8B h1Q c7 Bb5 Bd7 a3 c8B Nc5 b4 a2 Nb2 Bc4 Ba4 Nf6 Qb5 Qh7 Qe8+ Qf7 Rg3 Nfe4 Qc2 d1B Bf4 Rh4 Qd2 Bc2 Rd1 Rh1 Be3 Nb3 Bb6 Be7 Ba5 Bb1 Rg2 Ng3 Bcd7 Kg7 g6 Qg8 g5 Rc8 Rg1 Bc5 Rg2 Bb6 Rg1 Kh8 g7+ Kh7 Rg2 Qf8 g8N Kg7 g6 Bc7+ Qd6 Rf1 Ne7 Kh6 g7 Bd2 Ng6 Kh5 g8B Bg5 Bh7 Qg8 Qe7 Bf4+ Kf6 e5 Qd2 e4 Bh3 e3 Nh8 Rh1 Bc2 Re1 Bed3 e2 Ne5 Rf1 Rg1 e1B Rg2 Qge8 Kg7 Qb5 Qf8 Qb8 Qe8+ Bf7 Bh7 Ne2 Rg6 Bd6 Rg2 Rc3 Rg3 Bc7 Qb5 Bc4 Bcd3 Bc2 Ra1 Rg1 Rg4 Ng3 Be2 Bf5 Qe8+ Bg6 Qd1 Bed2 Qc2 Rb1 Qc1 Be1 Qd2 Rbc1 Rb1 R1c2 Rd1 Rc1 Qc6 Bgd3 Be4 Ra1 Rg6+ Kh4 Qe8 Bb1 Nf3+ Kh5 Bc2 Rd3 Ne5+ Rf3 Ng4 Rc3 Ne5+
R2Q1Q2/4q2b/1nK1Rn1r/2B1pRP1/5r2/bR2RNnN/1Pn5/BBq3nk b - - 0 1 illegal: Other
1q4Nq/2N3Nk/2b1n3/PQr1rNR1/B2pb1r1/n2r1B1K/3P4/Rr1N2BQ b - - 0 1 legal: proof: h4 a5 e4 f5 exf5 g5 hxg5 Bg7 b4 axb4 c3 Bf8 Be2 b5 Rh2 b3 Bd3 b2 Qg4 b4 Rh1 b3 Qd1 Bg7 Bf1 Bd4 Qf3 Bc5 Qd1 Bb4 cxb4 Kf8 Ne2 Kf7 Ng1 Ke8 g4 Kf8 a4 Kg7 f4 c5 Kf2 d5 Kg3 h5 b5 e5 g6 e4 a5 h4+ Kh3 e3 f6+ Kh6 f5 e2 f7 e1R f8N c4 g7 c3 b6 c2 b7 Ra7 f6 Ne7 g8B Bf5 f7 Nbc6 b8Q Nd4 Bg2 Re5 Nc3 b1R Nf3 b2 Ne6 Rd7 f8N Ng6 Nc7 Be4 Rg1 Nb5 Nfe6 Na3 Nfd4 Nf8 Ng7 Ne6 g5+ Kg6 Bf7+ Kh7 Bf3 Rg8 Qb5 Qf6 Be8 Qh6 Kh2 h3 Ndf5 Rd8 Kg3 h2 Rg2 Qf6 Kh3 h1B Qe1 Rd7 Nd1 Qd8 Qb6 Rd6 Ba4 Qf6 Qb5 Rd7 Nh5 Qh8 Nhg7 Rd6 Nh5 Rdd8 Qc6 Bd3 Bg4 Bb5 Rg1 Be4 Bf3 Rg6 Qa6 Bc6 Rg3 Rg7 Qh1 Rd6 Ra2 Ra1 g6+ Kg8 Rg2 b1Q Bb2 c1R Bd4 Qb8 Qb5 Rab1 Ra1 Rc3 Be3 d4 Rg3 Rdd5 Bg1 Rdc5 Rg4 Rd3 Rg2 Rd7 g7 Kh7 g8N Rg7 Rg3 Rg4 Nhg7 Rf4 Rg6 Rg4 Rg5
rQB2R2/1rR2rk1/2nP1B2/1q2p3/1B2Qb2/RP1Nr1r1/bq3R2/1R1n2NK b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 f4 a5 Kf2 e5 g4 c5 Kg2 h5 f6 c4 b6 c3 d6 c2 d5 a4 d7 a3 g5 a2 b7 Nh6 f5 Qb6 d8B Rh7 d6 Nc6 b8Q Qb5 Qd5+ Be6 Bd2 c1Q Na3 Ng4 Nc4 Bh6 Qe4 Nf2 Bb4 Nd1 g6+ Kg8 f7+ Kg7 f8R h3+ Kh2 h4 Be2 Ra3 Bg4 Rg3 Rb1 Bf4 f6+ Kh6 g7 a1R g8R Rb7 f7 Ra8 Rh8+ Kg7 Ra1 Bd5 Bc8 Qb1 Ra3 Be6 Na5 Ba2 b3 Qc1 Nc4 Qb2+ Ne2 Re3+ Kg1 h2+ Kg2 Nc3 Rb1 Nd1 Kh1 Rg3 Rh6 Re3 Re6 Rg3 Re7 Re3 Kg2 h1R Rc7 Rf1 Bg5 Rff3 Kh1 h3 Ng1 h2 Bh4 Rg3 Be7 Qc3 Nb2 Qc1 Nd3 Qb2 Rh8 Rg5 f8R Rf5 Bg5+ Rf7 Rh4 Rg3 Rg4 Re3 Rg2 Rg3 Re2 Re3 Kg2 h1R Rf2 Rhh3 Bd8 Rhf3 Kh1 Rg3 Bf6+
b2n3k/Br1n4/qNP2r1B/1PpN1Q2/4RbB1/R3n2q/1QB3nn/K4N1B b - - 0 1 illegal: No proof kernel
1R1q4/1bR3R1/rP1q1rBB/nQ1Q2q1/1P1B3p/1Bn1bB2/2N1qN2/q1k4K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 Kg2 Ke5 e4 Kd4 b4 a5 d6 h5 e5 c5 e6 f5 d7 c4 b6 a4 g6 h4 g5 c3 g7 a3 g6 c2 e7 a2 e8B Qf6 d8R+ Qd6 Qe2 Ra6 Nh3 Nf6 g8B Rh6 g7 Nc6 Qb5 Na5 Rg1 f3+ Kh1 f4 Na3 f2 Bg6 f3 Be2 f1Q Bb3 f2 g8Q Qd1 Bf3 f1Q Nf2 Bb7 Rb8 Ne4 d3 Kc3 d4 Qfd3 d5 Q3e2 Bg5 Kb2 Rc1 Qd8 d6 a1Q d7 Nc3 Qgd5 Bc5 Bf6 Be3 Bd4 Qf6 d8B Qd6 Bg5 Qdd3 Bf7 Rf6 Bh6 Qdd2 Bg6 Qdd3 Rcd1 c1Q Nc2 Qcd2 Rg4 Qf5 Rdg1 Qg5 Re4 Qdd1 Re7 Kc1 Rc7 Qde1 Nd1 Qeg3 Rg2 Qd8 Nf2 Qgd6 Be8 Qgf4 Rgg7 Qg5 Bg6
QN1nq3/2b3Nr/P2N3k/Nn5Q/R6R/1bR2Pb1/BB2Nprb/2K1b1q1 b - - 0 1 illegal: No possible last move, all moves rejected
B4nnb/2b2NP1/K4k2/R1B2q1b/1BrRr1B1/Q6p/3NBPbR/q1b3Q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Kc4 e5 b4 h5 g4 d3 f6 d2 b6 d5+ Kb5 d4 c4 d3 g6+ Ke6 g5 h4 b7 h3 f7 a4 g7 a3 c5 e4 c6 e3 c7 e2 g6 e1B Rh2 a2 Nf3 Qd6 Ne5 Rh7 Be2 Kf6 Ba3 Nd7 b8B Bb7 c8B Qc7 Ba7 Rh8 Bc5 Bg2 Qc1 d1Q Nd2 Rb8+ Ka6 Rh4 b5 Rc4 b6 Bd6 b7 Nf8 Bcg4 Qd7 Bab4 Re8 b8R Bc7 Rd8 Qf5 Rd4 Re7 Ndf3 Bc3 Nd2 Bb2 Qb1 Qh1 Qf1 Bc1 Qg1 Nh6 g8B Re8 Rb1 a1B Bh7 Bab2 Ra1 Ng8 Ra5 Bc3 Nc6 Re4 Nd8 Kg5 Rd6 Bf6 Rd4 Bh8 g7 Kf6 Bg6 Bf3 B6h5 Bg2 Bgf3 Re3 Ba8 Re4 Nb1 d2 Bhg4 d1B Nd2 Ba4 Ba3 Be8 Bab4 Nh7 f8Q+ Bf7 Qe8 Nf8 Qa4 Be8 Qa3 Bh5 Qd1 Qg1 Nf7 Qe1 Nb3 Qc3 Qg1 Qa1 Nd2
2qB2R1/qb2RpP1/1QNnB3/P3K1nk/4Q1NB/Q1Q5/Q3b2r/1bbb3r b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 b5 Ke3 c5 Ke4 h5 a4 b3 g4 c4 d4 b4 a5 c3 d6 c2 d7+ Ke7 g6 h4 d5 h3 d6+ Ke6 g7 h2 g5 b2 g6 b3 Na3 b1B Qe1 b2 Nc4 Qe8 d8B Nd7 Bcg5 Nb6 d7 Bd6 Nh3 Be7 Bh4 Rh6 Rg1 Bf8 Qc3 Nd5 Nf2 Ba2 Ng4 b1B Bh3 Nge7 g8Q h1B+ Kd4 Kf5 e4+ Kf4 e6 c1Q Nce5 Bb3 Nc6 Nf6 e5 Nh7 Ra2 Qf1 Re2 Ba6 Re1 Bg7 Qf8 Nc8 Qa3 Bd1 e7 Ng5 Re3 Bf8 e6 Nd6 Re5 Bad3 Re2 Kf3 Ke5 Qf2 Qa2 Rh7 Qca3 Bh6 Ree1 Qf8 e8Q Qa7 e7 Rh8 Qc3 Qg8 Qf8 Rb8 e8Q Rb2 Qee6 Rh2 Qfe7 Qe8 Qeb3 Qg8 Qba3 Bg2 Nf2 Rh1 Be6 Rh7 Ng4 Qe8 Bb6 Qc8 d8Q Rh2 Qdc7 Rh8 Qb7 Rh1 Bd8 Rh7 Ne3 B3e2 Qb6 Rh2 Nf5+ Kg4 Ne3+ Kh5 Ng4 Nb7 Qeb4 Bd5 Qe4 Nd6 Nd4 Bb7 Nc6 Nh3 g7 Bc1 Rh1 Bea6 Re3 Ng5 Rhe1 Bae2 Rd3 Ne8 Rd7 Rh6 Re7 Nd6 Rh1 Rf6 Re1 Rf1 Re8 Rg1 Rg8 Rgh1 Bd7 Nh7 Qef3 Nb5 Kd5 Bf1 Re7 Bfe2 Be6 Ng5 Qe4 Nd6 Ke5
2k1N3/1P1rBqp1/1RK1nR2/7B/1Q1P1qR1/2n1b2Q/QnRRb3/N3nr1n b - - 0 1 illegal: No possible last move, all moves rejected
1n4nR/5N2/1r2QbKB/Bqr2Q1B/2Nq4/2q4P/R1b1bPpq/1kN1N1N1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 a5 c4 e5 b4 g5 h6 g4 c5 g3 h7 a4 b6 a3 c6 d3 c7 d2 b7 a2 b5 g2 b6 Ra5 Qe1 d1Q Be2 Be7 Bh6 Rc5 Bh5 Qd6 Nc3 Qe8 Nce2 Bd8 Nc1 Be7 Rb1 a1Q Rb2 Bd8 Ra2 Qad4+ Kf3 e4+ Kg4 Ke5 f6 e3+ Kg5 Kd5 Kf5 e2 f7 Bf6 f8Q Qee5+ Kg6 Kc4 Qf7+ Q6d5 Qa5 e1Q Qe6 d6 Qb5+ Kc3 Qb1 Q1e3 Qbf5 Bd7 c8N Bb5 h3 Nc6 b8N Qh2 b7 Be2 Nd7 Nb8 Ncb6 Qed3 Ra8 Kc2 Nc4 Kb1 Nde5 Qc6 Nef3 d5 Ne1 Qb5 Ra2 Qc3 Ra8 d4 Ra2 Qe4 Ra8 d3 Ra2 Na6 b8B d2 Bc7 d1B Ba5 Nb8 Rd2 Bg5 Rd8 Bc2 Re8 Qed4 Rc8 Nf6 Rd8 Re8 h8N Ng8 Nf7 Re7 Rc8 Rb7 Rf8 Rb6 Rc8 Nf6 Rh8 Ng8 Nb3 Qde5 Nef3 Bed3 Ne2+ Ka2 Rd1 Qe3 Neg1 Be2 Ne1 Bf6 Rb1 Qed4 Rc1 Bcd3 Rc2+ Kb1 Ra2 Bc2 Nc1
n2q1rnq/8/bNr1r3/NQQq2qN/1B1NQ3/2p1P3/2KRRPkb/NB6 b - - 0 1 illegal: No proof kernel
3b2QB/2q1RN1Q/2N3N1/1q1n4/2q1R1rB/P4Nr1/3p1PbN/Kn1Bbq1k b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb2 Ke4 h4 e5 h6 b5 h7 d5 h5 g5 c6 d4 c7 g4 c5 b3 h6 g3 c6 g2 f6 d3 a3 d2 f7 b4 Qh5 Ra4 Qh3 Nd7 Rh2 Nc5 Qe6 Ne7 Be2 Bb7 c8Q Nd5 c7 Rg8 h8N Rg3 h7 Be7 Nf3 g1Q f8N Qf1 Bd1 Qc4 Nfg6 Qd6 Qa8 Bd8 c8N Qc7 Nf7 Bc6 h8B Bb7 Nge7 Kf4 Rh5 e4 Nc3 e3 Nh2 e2 Re5 Ne4 Nb5 Nec3 Nc6 Nb1 Qa7 Ba8 N8e7 Bb7 Ng4 Kf3 Nh2+ Kg2 Nbd4 Kh1 Ng6 e1B Ndf3 Ba8 Ra2 Bb7 Ka1 Qf1 Rc2 b2+ Ka2 Ba8 Re2 Bb7 Rc4 Ba8 Kb3 Bb7 Kc2 b3+ Kd3 Bc8 Qd6 Qb8 Qf8 Nbc3 Nfe5 Bh3 Qh7 Qc7 Qfg8 Bg2 Nf7 b1Q+ Kd4 b2 Re7 Qa2 Rb4 b1Q Bb2 Qba1 Bf6 Qc1 Bh4 Nb1 Bc3 Qab2 Rc4 Qg1 Kd3 Qb5 Bh8 Qc2+ Kd4 Qa2 Kd3 Qab3+ Kd4 Q3b4 Kd3 Q4c5 Kc2 Qd4 Rb4 Qgf1 Kb3 Qc3+ Ka2 Qc1 Rf4 Rd4 Ka1 Qcc4 Rf5 Rf4 Rfe5 Rfg4 Re4
QQ1b3b/3Knqr1/B3B1b1/nr4k1/8/PRB1N1Bp/2NQPBbq/3R1r2 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 Kg3 b5 Kf4 c5 d4 f5 g4 h5 d6+ Ke6 d7 h4 g6 b3 a3 b2 d5+ Ke7 g7 c4 e6 Kf6 g5+ Kg6 Ke5 b4 d6 h3 e7 c3 Ke6 b3 e8Q+ Kh7 Qd2 c2 Nc3 b1B Nd5 b2 Bg2 f4 g6+ Kh6 Nf3 Bb7 Nd4 Ra7 Rd1 Be7 Ne3 Qc7 d8B f3 d7 Qh2 Ba5 f2 d8B f1Q Bdb6 Nc6 Qa8 Kg5 Bc3 Na5 Kd7 Rh5 Bd5 Qf5+ Be6 Bd8 Bc5 Ne7 g8Q Qff2 g7 Qf7 Bd6 Bg2+ Bc7 Ba2 Rb1 Bc4 Qe8 Bd3 g8B Bg6 Bc4 Rb7 Ba6 Rh7 Qf8 Rb5 Bg3 Rg7 Bf2 Qff4 Be6 Qf7 Ra1 b1R Qb8 R1b4 Rb1 Rb3 B1b2 c1B Ndc2 Rf5 Be5 Rb5 Bbc3 Bb2 Beg3 Ba1 Rb3 Bb2 Be1 Rf1 Bef2 Rg8 Bb4 Bh8 Bc3 Rg7 Qa8 Bc7 Qfc8 Bd8 Qcb8
R1BbRQnN/rb1B1q2/1Qnr2n1/5BNB/7p/1q2P3/1Q4KP/k3B1bn b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 c4 Ke7 f4 Ke6 Kf2 d5 c6 a5 c5 g5 c7 h5 c6 a4 e3 a3 b6 g3+ Kg2 a2 b7 d4 f5+ Kd5 e6 g4 e7 h4 e8B d3 f6 Kc4 f7 Qd7 Nf3 Rh6 Qd2 Kb3 Ng1 Rd6 Ne2 Be7 f8Q Bd8 Nf4 Ra7 Ng6 Qf7 Qf2 d2 Be2 d1N Bd2 Kb2 Nh8 Qb3 Nc3 Qf7 Qf6 Nf2 Rhf1 Nh1 Be1 Qb3 Bd7 Qf7 Rc1 a1Q Ne4+ Ka2 Rc3 Qb2 Ng5 Ka1 Qd4 Qbb3 Qb6 Na6 b8Q Bb7 c8B Nb4 Kg1 g2 c7 Nc6 Rf6 Nf2 Re6 Nh1 Bf3 Ng3 Kf2 g1B+ Kg2 Nh1 Re8 g3 Bh5 Bf2 Kh3 g2 Rc4 g1N+ Kg2 Ne2 Ra4+ Kb2 Bf5 Bg1 Bcd7 Nf4+ Kf3 Re6 c8B Ng6 Kg2 Rd6 Rae4 Ra3 Ra4 Ka1 Ra8 Ra7 Q8c7 Rd3 Qe5+ Rd4 Qeb5 Rd1 Qe2 Rd6 Qb2+
6nB/1Q1QB3/1R1r2N1/n1K2B2/2Nnq1P1/2Nq1Pp1/2b1rR1q/bBk1Bq2 b - - 0 1 illegal: No proof kernel
1N3K2/RN3nR1/n1nQ4/brN2rR1/Bb1R1P1P/2B1Q1pb/1k1q1R2/4n1q1 b - - 0 1 illegal: No possible last move
QrnK2b1/k2NR3/1N3B1q/1Qq1N1Bn/4PN2/1nqB2N1/3rqPp1/4b2R b - - 0 1 illegal: No proof kernel
Nnn1N2R/r7/rB1br1b1/1Q1Q4/2BkP1KR/N2p2P1/3q4/nBBBq1r1 b - - 0 1 illegal: No possible last move
R1N5/N1rQ1k1b/2Rq3b/2Bbb3/r2Qp1RB/1PRRP1q1/2n2B2/3n1K1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 c4 Nf6 cxd5 Ng8 Bh3 Rh6 fxg5 Na6 g6 Nb8 g5 Rh8 Bg4 hxg4 h4 e5 d4 c5 b3 f5 d6 a5 b6 e4 h5 a4 e3 a3 g7 f4 d7+ Ke7 h6 a2 b7 g3 d5 c4 d6+ Kf7 g6+ Ke6 h7 g2 Rh6 f3 Nc3 Nc6 b8B Nb4 Nd5 c3 Nb6 c2 Ba3 c1N Ne2 Ne7 g8R Ned5 g7+ Kf7 Nc3 Ne2 Nb5 Ndc3 Rc1 a1B Na7 Ng3 Qd2 Qf6 d8R Bf5 d7 Nd1 Rc3 Nh1 Bg3 Qd6 Nbc8 f2+ Ke2 Nc2 Bc5 g1Q Qd3 Qd5 Rc6 Qd6 Bh4 Qgg3 Kf1 Be7 Rge8 Bg5 g8R Bh6 Rg4 Rg8 h8B Bh7 Be5 Rg7 Qd4 Bb2 Nb5 Ra4 Nba7 Qf3 Beg3 Qff4 Kg2 f1B+ Kg1 Ba6 Bf2 Bb7 Kf1 Ba1 Re5 Ba8 Rd5 Qg3 Rg8 Ke6 d8Q Rc7 Qe5+ Kf7 Rdd3 Bb2 Qd4 Bb7 Ra6 Bd5 Rc6 Ba1 Qd7+ Qe7 Nb6 Ra5 Rc4 Bg5 Ra8 Ra4 Nbc8 Bh6 Qc3 Bb2 Qb4 Bh8 Rcc3 Be5 Qd6 Qe6 Qd4 Qf6 Qd8 Qd6 Qd7+
1K2Qb2/6rB/1bbr4/1rBq2k1/R1P1Nqn1/B1R1Pbp1/n1Q1NR1B/5B2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 Kd3 a5 Ke4 g5 Kd5 f5 c4 d3 b4 f4 h4 g4 e3 d2 h6 d6 h5 f3 b6 a4 h7 a3 e6 Kf6 b7 f2 h6 a2 b5 Kg6 e7 Bd7 e8B+ Kg5 b6 Ra7 Ba3 Nc6 Qc2 d1B Bg6 Bf3+ Be4 Be8 b8B Rg7 b7 Nb4+ Ke6 d5 Nd2 d4 Ne2 d3 Bd6 Ba4 b8B Bc6 Bc5 Nf6 Bh2 g3 Rg1 Rhg8 h8R Ng4 h7 Qa5 Rc1 a1B Rg2 Bd4 Bg6 Na2 Ne4+ Kh4 Bf5 d2 Bg6 d1R Bf5 Re7+ Kd6 Rgg7 Rg8 Rg5 h8Q+ Rh5 Qe5 Rg7+ Qe7+ Rhg5 Bh7 Qa8 Kc7 Kh5 Bb6 Rb5 Bbc5 Qa5+ Kc8 Qd2 Qe8+ Kh4 Bd6 Bb6 Bdc5 Qd7+ Kb8 Rd6 Qb1 Qf5 Rc3 Qe6 Qc2 Qd5 Nd2 Rgg6 Rg7 Kg5 Ra7 Rg7 Ra4 Nb4 Rg1 Na2 Ne4+ Kh6 Bh3 f1Q Rg2 Qf2 Nf6 Qf1 Rf2 Kg5 Bg2 Qfd1 Bh3 Q1d4 Bf1 Qf4 Ne4+
K3B2R/N1Rb2q1/4qb2/QRRnBB1r/2Pp4/2qQ1N2/1r1Prk2/q2R1n2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Kd5 Kf4 g4 e5 c4 a5 c6 h5 b6 a4 c7 h3 g5 a3 g6 h4 f6 h2 b7 h3 f7 a2 g7 e4 Qc2 e3 Qd3 e2 Nf3 e1R Nc3 Qe7 Bb2 Nh6 g8B Na6 b8R Bg7 f8Q+ Nf5 Rb5 Rh5 Qd8 Bf6 Rd1 a1Q Bf7 Rb8 Be8 Re2 Bg2 d6 Kc6 d5 Rhg1 Be6 c8R h1Q Rc7 h2 Bh3 Ng3 Bf5 Nf1 Rg5 Qg7 Rc5 Qc1 Nb5 Qc3 Na7 Rb3 Rb5 Nb4+ Kb7 Bd7 Ka8 Qg1 Ba1 h1Q Bb2 Rh4 Rh5 Q1g4 Rh8 Rh2 Rcc5 Rh5 Qa5 Qe7 Rh7 Qe6 Rf7 Qg7 Ba1 Bc8 Rfc7 Rb2 Rc1 Qce5 Rd1 Bd7 Beg6 Rh3 Be4 Bh4 Rc1 Ng3 Nh2 Ra2 Be8 Rc2 Bc3 Rb2 f3 Qd1 Bd4 Qa4 Rd1 Nf1 Bc3 Kg3 f4+ Kf2 f5 Bd8 f6 Qa1 Bf5 Rh5 Nf3 Qd4 Qb1 Qde3 Be5 d4 Qc2 Qc3 Qd3 Nd5 f7 Qh8 f8R Qg7 Rg8 Bf6 Rh8
3n2b1/1rr5/3R1nk1/2q3b1/q1pPNrBB/1PBQKB1N/qr5R/1BQ4Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 g4 a5 d4 f5 e4 Kf7 g6+ Kg7 e5 c5 d6 h4 b3 f3 d7 h3 e6 h2 e7 c4 e8B a4 g5 f4 b6 a3 b7 a2 Be2 Qe7 d8B Nf6 Qd3 Nc6 b8Q Rh7 Nc3 Qc5 Bd2 Ra7 Nh3 Be7 Qb7 Be6 Bd7 Bg8 Raf1 a1Q Ne4 Qa6 Bg4 Qa2 Bc3 Qa4 Qa8 Rc7 Ra1 Qa2 Qa3 Rb7 Qc1 Qa4 Ra2 Rc7 Rg1 h1Q Rg2 Qd1 Rh2 Qc2 Ra3 Qa2 Qh1 Kf8 g7+ Kf7 Qc1 Kg6 Qh1 Bf7 g8Q+ Rg7 Qh8 Bg8 Qh4 Rf7 Qg3 Rg7 Qgg1 Rb7 Qc1 Rh7 Kg1 f2+ Kg2 Rg7 Kf3 Rf7 Bd1 Rc7 Bc2 f1R+ Ke2 f3+ Ke3 f2 Bb1 Rg1 Bf3 f1R Bg4 Qab5 Ra6 Rg2 Bf3 Qba4 Rb6 Ne5 Rd6 Rb2 Bg4 Nc6 Bf3 Kf5 g6 Rff2 g7 Kg6 Bg4 Rf4 Bf3 Bh7 g8B Rg7 Be6 Bg8 Bc8 Rb7 Bb6 Bd8 Bba5 Rgc7 Bcg4 Be7 Be1 Nd8 Bac3 Bf8 Qdc2 Bh6 Qd3 Bg5 Bh4
3qnB2/2N1N3/1N1bB2N/3bkqp1/NR1PP3/4KR1n/Q2nQ1q1/nr4Br b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 h4 Kd6 b4 g5 e4 c5 b6 f5 h6 a5 d3 c4 h5 f3 h7 a4 b5 a3 b7 f4 b6 c3 h6 c2 Bh3 a2 Be3 c1N Be6 Be7 Rh3 Ra4 Na3 Nf6 Qe2 Ra5 Rb1 a1N Nb5+ Ke5 d6 Nc6 b8N Nd5 d7 Na2 b7 Ra8 Nc7 Nf6 Rb4 Nd4 Nc6+ Kd6 b8N Bb7 Rg3 Nc1 Rh3 Bf8 Ne7 Ke5 Qa2 Ra4 Ne2 Ne8 Nc3 Bd5 Qe2 Ra3 Na4 Ndb3 Qa2 Ne2 Bb6 Rg8 h8N Ng1 h7 Nd2 Be3 Rb3 Nf7+ Kf6 Rg3 Rh8 Nh6 Rb1 Bc5 Ke5 Bb6 Rg8 h8Q+ Rg7 Qg8 Rh7 Qg6 Rh8 Qh5 Rh7 Nc8 Bd6 Nc6+ Kf6 N6e7 Ke5 Qh3 Rh8 Qf1 Rh7 Qd1 Rh8 Ba7 Rh7 Ncb6 Nh3+ Ke1 f2+ Ke2 f3+ Ke3 f1Q Qe2 f2 Rf3 Qc8 d8B Qg2 Nef5 f1Q Be7 Qd7 Bf8 Qd8 Ne7 Rh8 Rg3 Qf7 Rf3 Qf5 Nf7+ Kf6 Nc4 Qf4+ Kd4 Qf5 Bc5 Nf2 Ncb6 Rh4 Nh6 Rhh1 Ke3 Be5 Bd6 Bh2 Bg3 Nh3 Bf2 Bd6 Bg1 Ke5 d4+
1B2r3/3R4/Bnk1q1bK/n1RprNn1/4qr1b/P3B1r1/P1QNR1B1/Q2B4 b - - 0 1 illegal: No possible last move, all moves rejected
N2bN2n/r2QR2q/2qq4/RB1p4/2b2PR1/r1P2n1N/1k3q2/1RRb1QBK b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 b4 Kf6 b6 Ke5 f6 a5 b7 g5 h6 d3 h7 Kd4 h5 e5 h6 g4 b5 g3 b6 e4 f7 a4 Nd2 Kc3 Nh3 e3 Nc4 g2 Nd6 g1Q Ne8 e2 Be3 Kb2 c3 Nc6 b8N a3 b7 a2 Na6 Qh2 Nac7 Be7 f8Q Ra7 Na8 Ne5 b8R+ Bb7 f4 d5 Qf5 Qd6 Bg1 Bd8 Qd7 Ne7 Rc8 Qc6 Rc7 N7g6 Rc1 Rg8 h8R a1Q h7 Qaa6 Ra1 Rg7 Rg8 Nh8 Ra5 Rg2 Rg4 Qd6 Ra1 Qac6 Ra5 Ba6 Ra1 Nhg6 h8R Bc4 Rh7 Ra3 Ra7 Nh8 Ra5 Rf2 Re7 Rg2 Nf2 Qh7 Nh3 Rg3 Kf2 d2 Qe1 d1B Rc1 Re3 Kg2 Nf3 Ra1 Qc2 Qf2 e1Q Be2 Qh7 Qf1 Ba2 Bb5 Bc4 Rh2 Re2+ Kh1 Rc2 Rhe2 Qf2 Re1 Re2 Rc1 Re6 Ra1 Rg6 Rc1 Rg7 Ra1 Bde2 Rec1 Bd1 Rg6 Rf7 Rg4 Qb7 Re2+ Nd2 Qf5 Qbc6 Re3 Rd7 Re7 Ra7 Qd7 Nf3 Rab1+
2K1RN1n/Q4N1r/RN2rrN1/bPP5/1pB3k1/q1b5/2NnbB2/rQ2q1Q1 b - - 0 1 illegal: No proof kernel
rR2n3/1rqbQ3/2Bnb1rk/1PpNB1Q1/1Qq2Q2/3N1KR1/b2PRQ2/6b1 b - - 0 1 illegal: No possible last move, all moves rejected
n1N1bn2/r7/1N1bbQ1q/P2kBR2/4Rn1N/RP1rbRQ1/B4p1K/3R1q2 b - - 0 1 illegal: No proof kernel
1Qq3N1/1r1b1n2/3r4/pnPB2B1/3BB1n1/NkB1n2q/q2bKN1P/Q3R1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 Ke7 c4 Ke6 e4 g5 h6 d5 b6 a5 c5 f5 h7 f4 b7 d3 b5 d4 b6 d2+ Ke2 f3+ Kf2 d3 Nc3 g4 Nd5 Nf6 Nh3 Ra6 Ne7 Nc6 b8B Bd7 b7 Qc8 Rg1 Nd8 Bg2 Bh6 Ng8 g3+ Kf1 Rc6 Nf2 Nf7 Bd6 Rc7 b8Q Rb7 Bf8 Bf4 Bg7 Ng4 Qe1 d1N Qc3 Bh6 Bg5 d2 Qa3 Nb2 Re1 d1N Qa1 Nc4 Bh1 Nc3 B7f6 Ba4 Bg2 Nb5 Bh1 Kd7 e6+ Kc6 e5 Kd5 e7 Nfd6 e8N Nf7 Ne4 f2 e6 g2+ Ke2 Nce3 e7 Kc4 N8d6+ Kb3 e8B f1Q+ Kd2 Na7 Bc3 Bd7 Nc4 Nb5 Na3 Qf3 Nf2 Qh3 Ne7 Rg8 h8B Rg6 Ng8 Rf6 Ke2 Rd6 Rgf1 g1Q Be4 Qh1 Rg1 Q1g2 Bhd4 Nf5 Bd8 Bd2 B8f6 Nfe3 Bg5 Be6 B8c6 Bd7 Bf5 Qe4 Bg6 Qc2 Bge4 Qa2 Bcd5+
n1bN2rr/3Rb2B/B2n3p/bQ1BBP2/1brN1K2/4R1QP/Q3q3/q1Bk4 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 Ke7 Ke3 Ke6 f4 Kf5 c4 g5 h3 a5 e6 d5 b6 g3 b7 h6 e7 a4 e8B g2 c6 g4 c5 g3 c7 a3 c6 a2 Nf3 g1R Bg2 Qd7 Nc3 Rh7 Nb5 Qe7+ Ne5 Nd7 b8B Ra4 Qe1 d4+ Kf3 d3 Nf7 d2 Nd8 d1Q Nd4+ Kf6 f5 Ke5 Bh5 Rh8 Bg6 Ngf6 Bh7 Nb6 Rh2 Kd5 Kf4+ Kc4 e4 Kd3 e5 Ne4 e6 Nd6 Bd5 Rc4 Re2 g2 Qh4 Qf6 e7 Na8 e8Q Be7 Qd7 Kc3 Re3+ Qd3 Rb1 a1B Rb7 Bb2 Qf2 Ba3 Qa2 Bc5 Qe8 Bb4 Qg8 Ba5 Qg3 Qg7 Bb2+ Kd2 Bc1+ Kd1 Ra7 Bb7 c8Q Qe2 Qd7 Bc8 c7 Qf6 Qb5 Bb4 Re4 Qg7 Nc2 Qa1 Nd4 Rh1 Re5 g1B Re3 Bf2 Rb7 Bfe1 Ra7 Rg1 Rb7 Be6 c8B Ba5 Rc7 Beb4 Ba6 Bc8 Rd7 Rg2 Qf2 Rgg8 Qg3 Nf7 Be5 Nd6 Qa3 Nc7 Qb2 Na8 Qa2
Q1bb2k1/4r3/5P2/2R3Np/Q1q1P2Q/KnRnR3/1Nq1BR2/Brqqn1R1 b - - 0 1 illegal: No proof kernel
2q3bQ/N2Nb1Bb/3Rnpb1/RKQn1P2/BNR5/7r/1Nq3PN/k1r4n b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 axb5 exd4 h4 Ba6 hxg5 Bc8 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 f4+ Ke4 c6 a5 c7 h5 g6 f6 g7 d3 b6 d5+ Kb5 Kd4 e4 a4 c4 d2 c5 a3 e5 h4 c6 h3 b7 h2 e6 a2 e7 Na6 e8Q Nc5 b8N Be7 Na3 Kc3 Qdh5 d1B Nf3 d4 Nc4 d3 Nb2 d2 Nd7 Ne6 Qc5+ Kb3 Bd3 Bc2 Rd1 h1N Nh2 Rh3 Qeh5 Ra4 Qh8 Rc4 Be2 Bb7 c8N Bg6 c7 Bd5 Na7 Qc8 f5 Bh7 Nc6 Rc2 Nb4 Rcc3 Rg1 d1B Bh6 Rc1 Bd3 Bh5 Rd1 B5g6 Bc2+ Ka3 Ba4 Bb3 Rb1 a1Q Rd6 Qa2 Ra1 Qa8 c8N Bd5 Na7 Qc8 Rb1 Qb3 Rb6 Qc2 Ra1+ Ba2 Rc6 Bd6 Ra6 Ne7 g8R Nd5 Bg7 Be7 Rd8 Re1 Rd1 Rg1 Rd4 Rc1 Rc4 Bb3 Nbc6+ Ka2 Ra5 Ka1 Nb4 Ng5 Nf8 Nb6 Rf4 Bbg8 Rc4 Ne6 Rd6 Nd5 Nd7
n2nqQ2/2R2N2/1BQ2pRP/3B4/B4n1R/KnPrrq2/b1R1k2r/1R3Nb1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 Ke6 e4 g5 b4 a5 c3 d5 Kc2 f6 Kb3 g4 b6 g3 b7 a4+ Ka3 d3 h6 d4 h7 d2 h5 d3 h6 g2 Nf3 g1N Bg2 Ne2 Ng5+ Ke7 b5 Nf4 e6 Kd6 e5+ Kc5 b6 Kc4+ e7 Be6 Rh4 Na6 b8R Nc7 b7 Qe8 Qf3 d1Q Be3 d2 Rc8 Kd3 b8R Ba2 Qc6 Qf3 e6 d1R Bb6 Ke2 Nf7 Rd3 Nd2 Ra6 Rf1 Na8 Rc7 Ra5 Bh1 Rh5 Rg1 Re3 Nf1 Rd3 Rhg4 Rh2 Rh4 Re3 Rg6 Rd3 Kb4 a3 Rbb7 Bd5 Rb8 a2 Ka3 a1N Bg2 Ba2 Bh1 Qg3 Bd5 Nb3 Rbb7 Qf3 Rb8 Bg7 Rbb7 Qd7 e8Q Ne7 Qf8 Qe8 Ra7 Rg8 h8R Re3 Qb7 Nc6 e7 Nd8 Qc6 Qd7 e8B Qe6 Qfc5 Bf8 Rab7 Rg7 Rg8 Qee4 Qb4 Bc5 Bd7 Bd4 Qf8 Qe8 Rb8 Rd3 Rbb7 Bg1 Rg2+ Ke1 Rc2 Rgg2 Rg6 Re2 Qc4 Ree3 Ba4 Kd1 Qc6 Ke1 Bd4 Nc1 Rbb2 Nb3 Bb6 Kd1 Nd2 Ke1 Rb1+ Ke2 Nf1+
1QRnR2q/1B2r3/4PQK1/N1qk1N2/b3N1bR/q2p1NP1/qbn4B/r6N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 h5 b4 a4 c5 d3 g6 h4 g7 d2 c6 d6 c7 a3 b6 h3 b5 h2 b7 a2 b6 f6 Nf3 Rh5 Nc3 Nh6 g8N Na6 b8N Ra7 b7 Bg7 Nc6 Qf8 b8Q Nf7 Nge7 Rh7 Nf5 Nd8 Ng3 Nb4 Na5 f5+ Kf4 d5 Kg5 f4 e4 d4 Kg6 Qh8 Ba6 d3 Bb7 Nc2 Qf1 d1B Ba3 Qg8 Rc1 a1Q Bd6 Qa3 Qf2 Bd7 c8N Ba4 Ne7 Ra8 Nef5 Qh8 Rg1 h1Q Re1 Qh4 Rh1 Qe7 Rh4 Qa2 Bc7 Qc5 Nh1 Qaa3 g3 Bf6 Bb6 Re7 Ba7 Qa2 Qf1 Qca3 Bg1 Be2 Bh2 Bg7 Ng1 f3 Qf2 Qc5 Qf1 f2 Nf3 Nd4 Rc2 Qaa3 Qa1 f1Q Qb2 Qb1 Qb6+ Kd7 Qf6 Qba2 Rc1 Nc2 e6+ Ke8 e5 Ra7 N3d4 Bg4 Ne4 Rf7 e7 Kd7 e8R Re7 Qg5 Bf6 Nf3 Ke6 Ba6 Bg7 Qf6+ Kd5 e6 Ra8 Qg5 Ba1 Qf6 Bb2 Bb7+ Bc6 Qf7 Qa7 Kg5 Nb4 Ba6 Qb1 Nfd2 Qb3 Kg6 Qb6 Rc4 Nc2 Nb7 Bb5 Rc7 Qc5 Nf3 Bc6 Qf6 Bd7 Bb5 Ra1 Na5 Q1a2 Ba6 Qba3 Rc8 Ba4 Bb7+
2NR1nk1/n7/4PqrB/KB4rN/RRP2q1b/2QNrN1q/1NQ3p1/1b5r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 g5 h4 a5 e4 d5 b4 f5 e6 g4 b6 a4 b5 f4 e5 d3 Kc3 a3 b7 g3 h6 g2 h5 f3 h7 a2 e7 Kf7 Kb4 f2 h6 d2 b6 d4 Nc3 d3 Na4 Bd7 Rh4 Bg7 e8N Bf5 Nf3 Qf6 Nb2 Nd7 b8R Ra5 b7 Ne7 Rd8 Rg8 h8Q Nc8 b8N Na7 h7 Nf8 Nd7 Be4 Rb1 a1R Nb6 R1a3 Nc8 Bf5 Qe2 d1Q Bh6 d2 Rhd4 Re3 e6+ Kg6 c3 Bd3 Ra1 Rg5 Ra4 Bb1 Rc4 Qf4 Nf6 Qc1 Re4 d1R Nh5 Bf6 Qc2 Rg7 Ba6 Rh1 Bb5 f1Q Ka5 Qce1 Rab4 Qeg3 Ra4 Qh3 Reb4+ Qd3 c4 Qdf5 Rb3 Rg8 Rbb4 Be7 Qhc3 Rg7 h8N+ Kh7 Qe5 R7g6 Nf7 Qf6 Qd4 Kg8 N7e5 Bd6 Ned3 Be5 Qe4 Bc3 Qf5 Be1 Qe5 Bh4 Qec3
7n/NB1n2R1/nN1QP1kq/1N1PQpBN/1b4BK/3q1N1b/3q1rr1/5R1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 g4 h5 d4 a5 b4 f5 e4 Kf7 d6 f3 Kg3 c4 b6 a4 g6+ Kg7 d7 a3 b7 f2 b5 c3 g5 a2 e5 c2 b6 Rh6 Nc3 Qe7 d8N Qa3 Nc6 Qe7 Bh3 f1Q Na7 Qb4 Kh4 Qd3 Ncb5 Na6 b8Q Bb7 Nf3 Qbd2 Rg1 Bb4 Bg4 Ne7 Rg3 Bd5 b7 Rh7 Qc7 Rg8 b8N Bb7 Rb1 a1N Nd7 Nb3 Nb6 Nbc5 Qe2 Nd7 Qd6 Qe1 Bf4 Qed2 Rf1 c1Q Qh2 Kf8 g7+ Kf7 Rgg1 Be4 d5 Rhh8 e6+ Kg6 Be3 Rh7 Qhe5 Rhh8 Ne1 Bh1 Nf3 Bg2 Bf4 Bh3 Be3 Rc8 g8N Rc2 Nf6 Rg8 Rg3 Nc6 Rgg1 Nd8 Rg3 Nf7 Rgg1 Kg7 g6 Nh8 Bg5 Qde1+ Rg3 Rf2 Bd2 Qee3 Rgg1 Kh6 g7 Kg6 Rg2 Qh6 Bg5 Qcd2 Rg3 Rc8 g8B Rc2 Bf7+ Kg7 Na4 Rg2 Nb6 Nf8 Bf4 Q2e3 Be8 Rcf2 Bd7 Qed2 Bc8 Nd7 Bb7 Nc7 Ng1 Na6 Be2+ Bg4 Nf3 Qh7 Kg5 h4 Bd1 h3 Be3 h2 Ne1 h1N Nh5+ Kg8 Kh4 Qh6 Be2 Kh7 Bd1 Bf3 Rg8 Bg4 Bg5 Bh3 Bg4 Q3e3 Nf3 Qed3 Rf8 Kg6 Rf7 Ndb8 Re7 Nd7 Rg7+
bQBB2Qq/1Q6/KbNP1bk1/Prrp4/nB6/1Nq4Q/1nb5/1R1RQ1q1 b - - 0 1 illegal: No proof kernel
N1qk2Q1/r6R/NnP2Nq1/bq3pq1/1Q1P2b1/3NR2B/rBK2bR1/1n1N4 b - - 0 1 illegal: No proof kernel
3k1rB1/N1r1nb1R/1Np2rb1/Qr2PN2/Qn4qR/2qN1Q2/1N3P1b/4B2K b - - 0 1 illegal: No proof kernel
3q1n2/1bqR4/1P1n1bRp/KQq1rN2/2B1Nk1P/2r2r2/N3Q1N1/1QBN3r b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 Kf7 Kc3 Ke6 Kb4 Kf5 f4 d5 e4+ Kg6 h4 g3 c4 g2 f5+ Kf7 b6 g5 e6+ Kf6 e7 Ke5 e8N d4 f6 d3 f7 d2 Ne2 g1R Nc7 g4 Nbc3 g3 Ka5 a6 c6 g2 c5 h6 Na2 Bd7 Nec3 Bc8 Qe2 d1R N7d5 Ne7 c7 Nd7 c6 Bb7 c8N Nf5 c7 Re1 Nd6 Bg7 f8Q Bf6 Ne3 Rc8 Ncd1 Kf4 e5 Rg8 e6 Rg3 e7 Rf3 Ne4 Nd6 Rh3 Rh1 e8Q g1Q Rg3 Qf2 Qfe7 Nf8 Q8b5 Qh2 Qh7 Qg1 Ka4 a5 Rg6 Qg5 Rb1 Qc5 Rb4 Be5 Rd4 Bf6 Qeb2 Re2 Qe7 Re1 Bc4 Re2 Qb1 Ree1 Kb3 a4+ Kc3 a3 Qe6 Qf5 Kb4 Qc5+ Ka5 Re2 Nac3 a2 Qe7 a1Q+ Na2 Nf7 Rd7 Qae5 Qe8 Nd6 Qe6 Rb8 c8N Ree1 Ne7 Rc8 N7f5 Qcc7 Qe7 Qec5 Ndf2 Rd1 Qe6 Rd5 Nfd1 Re5 Qd5 Bh8 Qdd3 Bf6 Qe2 Q7c6 Ndc3 Qd4 Bb3 Qcc4 Ncd1 Qf7 Re7 Rc3 Bc4 Qc5 Rc7 Qc6 Re7 Qfd5 Rc7 Qdc5 Rd7 Qcc7 Ng2+
n3QB1K/8/1P3kpB/2Nr2RB/QrBQBb1r/1N1r1R2/P4q2/1qn1bb2 b - - 0 1 illegal: No proof kernel
R1Q3k1/1bRq1NB1/1pN1r1P1/3N1B2/1K1b1n2/P1B1b1q1/2q2Nnb/1N1Q1r2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 g4 h5 d4 e5 Kd2 c5 d6 c4 a3 b6 d5 c3+ Kd3 h4 Kc4 c2 d7 h3 d6 b3 f6 h2 f5 b2 Kc3 e4 Bd3 e3 Kb4 e2 Bd2 e1B Bc3 c1B Nh3 Rh6 Nf2 Ne7 g6+ Kg8 g5 Be3 g7 Ng6 Rf1 Qc7 d8N h1Q Nf7 Nd7 Be4 Nc5 d7 Bd4 d8N Qf3 Nc6 Bd6 Rg1 Nh4 Bd3 Kh7 g8N Qd7 Nge7 Qg3 Nd5 Bb7 g6+ Kg8 Rf1 Bd2 Re1 Rf8 Re8 Rh7 Ra8 Ne6+ Ka4 Re8 Nd8 Qg7 Ra2 B6f4 f7+ Kh8 f8Q+ Qg8 f6 Bc7 f7 Be3 Ncb4 Qg2 Nd2 b1Q Ba1 Qf3 Bc2 Ng2 Bf5 Rh1 Rc2 Bh2 Rc7 Rf1 Bc3 Nef4 Nbc6 Qc2+ Kb4 Re6 Nb1 Qg3 Qe8 Kg7 f8B+ Kh8 Qd7 Qg7 Qc8 Qd7 Nf7+ Kg8 Bg7+
N1k2rR1/qQ4Q1/p1B5/6B1/b1Pn1Q2/P1bqQ1q1/R1qr1B1n/1QN2b1K b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 b3 gxh4 c3 c4 bxc4 d5 Ba3 d4 cxd4 Qd6 Bc1 Qd8 g4 Kd7 f4 h5 Kf2 e5 Kg2 b5 f6 a6 d5 b4 d4 b3 f7 e4 f5 b2 g5 e3 f6 e2 d6 e1Q a3 Bg7 f8Q Qc3 d5 Qe7 f7 Qe6 g6 Bb7 Ra2 Qce3 Ne2 Q6e5 Qe7+ Kc8 Rg1 h3+ Kh1 h2 Nbc3 b1Q Bg2 h4 Na4 Qa7 Be3 Qc2 Nc1 Bc6 Bf2 Qg3 Qe3 Bc3 g7 Nf6 f8Q+ Be8 g8Q Ng4 Qf1 Nc6 Qff4 Nd4 Qg7 Rf8 Qfd3 Rb8 Qde4 Rb2 d7+ Kb7 d8B+ Kc8 d6 Bc6 Nc5 Ba4 Bg5 Qd3 Qeg6 Rd2 Ne6 Qc2 Nc7 Qd3 Qe2 Qc2 Bc6 Qgd3 Kg2 h1Q+ Kf1 Qh2 d7+ Kb8 Q7f6 h3 Bgh4 Qf5 Qee3 Qb2 Rg2 Ne5 Rg5 Qg3 Na8 h2 Qh8 h1B Qhg8 Qgh3+ Kg1 Bg2 Rg3 Qhg4 Qh8 Bf1 Kh1 Qfb1 Qc2 Qg7 Be7 Qb3 Qb2 Qd3 Qb1 Qc7 Qh7 Nef3 Rg4 Qg8 Beh4 Nh2 d8Q+ Ka7 Qdd7 Kb8 Qdf7 Kc8 Rg7 Qbc2 Bf6 Qh8 Rg8 Qa7 Qhg7 Qh4 Bg5 Qg3 Qfb7+
3BN2K/1r4RP/1NBqBNr1/5nqQ/1Br3r1/p6k/QP1Rn3/bb2Bb2 b - - 0 1 illegal: No proof kernel
1rR1r2N/2Q3Kp/1r2kNN1/nqPQ2B1/1R1b1bb1/PrN2BN1/5n2/q5B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 Kd3 d5 Kd4 b5 Ke5 e6 g4 b3 f4 d4 c4 b4 g6+ Ke7 a3 b2 g5 d3 f6+ Kd7 c6+ Kc7 g7 b3 f5 d2 g6 Bb7 f7 Bb4 f8N Kc8 c7 Qg5 Rh4 Bc5 Be2 Bf3 Nc3 Bg4 Bf3 b1R Nge2 b2 Ng3 Nf6 g8N Ne4 g7 Nf2 Ng6 Kd7 N8e7 Re8 g8N Be3 Qb3 d1Q Nh8 Qe1 Neg6 Bf4+ Kd4 Kd6 f6 Qb5 c8Q Ra6 f7 Rb6 Qc5+ Kd7 f8B e5+ Kd5 e4 Qc2 e3 Nf6+ Kd8 Bh6 e2 Be3 Nc6 Bg5 Na5 Kd4 Qh1 Qd5+ Kc8 Qc1 e1B Ra2 Nd3 Bg1 Nf2 Qe3 Bd2 Qe7 Bfe3+ Ke5 Rb8 Nf5 Bd4+ Ke6 B2e3 Kf7 Bf4 Ng3 Rb6 Kg7 Rb8 Qee4 Kc7 Qb7+ Kd6 Qd3 Ke6 Qc7 Ra1 c5 b1R Rd2 Rb3 Rd1 Rab1 Qe4+ Bde5 Rd8 R1b2 Qd3 Bd4 Rc8 Rb1 Bh2 Qc1 Bg1 R1b2 Qd1 Qa1 Rh1 Rb4 Qb3+ Qc4 Bh2 R4b6 Rb1 Nc6 Bg1 Na5 Nd5 Qb5 Qa2 Rc2 Rb4 Rb2 Nc3+ Rb3 Qd2 Bde5 Qdd8 Bd4 Qd5#
3q1Qkb/q5P1/b1q5/1B2K1B1/1q1n1rN1/1n2PBBN/2BQ1rRp/2QRb3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 Kd3 f5 g4 Kf7 c4 h5 b4 d5 b6 f4 b7 f3 b5 a4 b6 a3 c5 f2 g6+ Kg7 e6 a2 c6 h4 e7 h3 e8B h2 c7 Nd7 b8B Nh6 b7 Ra4 g5 Kg8 g7 Bb4 Bg2 f1Q Nd2 Qf8 Nh3 Nf5 Ne4 Be1 Qd2 Qb4 Bf3 Qf6 Rg1 Qc6 Rb1 a1B Nef2 Bb2 Ng4 Nc5+ Kc2 Rh6 Rg2 Nb3+ Kd3 Rf6 Bd7 Qcb6 Bb5 Qc6 Ba7 Rf8 b8Q Ba6 c8Q Bc3 Bb6 Ba1 Bc7 Bc3 Kc2 d3+ Kd1 Re8 Qb2 d4 Bg3 d2 Kc2 Qe6 Kd3 d1Q+ Bd2 Qf7 Ra1 Rd8 Ke4 Ra2 Qc4 Kh7 g8B+ Kg7 g6 d3 e3 Rf8 Rb1 Qa7 Bh7 Qc2 Kf4 Bd4 Bc3 d2 Qe2 d1Q Qc8 Qdd2 Rd1 Rf6 Qc1 Qdd3 Ba1 Qc6 Qec2 Rf7 Qc3 Rf2 Q3d2 Qdc4 Qe8 Q4d5 Bb2 Qd8 Ba3 Qa4 Be7 Qb4 Bg5 Bf6+ Qe4 Nfd4 Qe8 Be7+ Ke5 Rf4 Bg8 Kh8 Bgc4+ Bf8 Bd3 Kg8 Qe7 Bh6 Bc2 Bg7+ Qf6 Bh8 g7 Qcc3 Qe7 Qc6 Qf8+
b1Q2BB1/R2NnPq1/1rr3R1/2q1N3/7Q/Bn1Rn2p/P2Rb2b/nR3k1K b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 g4 Kd6 f4 h5 Kf2 b5 Kg2 c5 f6 e5 f5 b3 g6 b4 g5 c4 f7 h4 f6 e4 g7 c3 g6 c2 Ba6 h3+ Kh2 e3 Ba3 c1Q Nd2 b2 Qc2 b1N Bd3 e2 Bb5 e1N Bc4 Rh6 Nb3 Ng2 Qf5 Ba6 Nc5 b3 Qf2 b2 Qh4 Nc6 Nd7+ Nb4 Nf3 Rc8 Rd1 Rc6 Rd2 Ne3 Nfe5 Ne7 g8R Qc7 g7 Rb6 Rd3 Nd2 Rb1 Nb3 Rh8 Bb7 g8R Ba8 Rh7 Qc3 Rgg1 Qc5 Kh1 Nbc2 Rg6 Bg7 f8B Nca1 Rbg1 b1B Rgd1 Bc2 Rb1 Rc6 Rd2 Bd1 Rd3 Kc7 d6+ Kb7 Be6 Ka6 d5 Kb5 Bg8 Bh5 f7 Be2 Rh8 Rh5 Rhh6 Rf5 Rh5 Rf6 Rhg5 Rb6 Rg4 Bh6 Ra4 Bf4 Ra7 Re6 Nf6 Qb2 d7 Rec6 d8Q Bh2 d6 Qbd4 d7 Qg4 Nf3 Kc4 Qc8 Qgd4 d8R Qg4 Qf2 Qgd4 Nd7 Qg7 Rdd1 Kc3 Nfe5 Kc2 Qh4 Kc3 Rdg1 Kc2 R1g3 Kd2 Rb2+ Ke1 Rd2 Nc4 Rgd3+ Kf1 Re8 Nf5 Ree6 Nce3 Red6 Ne7 R6d4 Qa5 Rb4 Qc5 Rb5 Nd4 Rbb2 Ndb3 Rb1+
1Q2bK2/n2N1P1R/6P1/1b2Bkb1/B2NNr2/1rbN2Q1/pqr2NR1/1n1B2q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 e5 b4 a5 f4 c5 d4 h5 g4 c4 g6 h4 b6 a4 g5 a3 d6 Ke6 b7 c3 g7 c2 f5+ Kf7 g6+ Kf6 d5 a2 b5 h3 b6 h2 d7 Ra3+ Nc3 Ra7 d6 Nc6 b8Q Rh5 b7 Rh6 Nh3 Qe8 d8N Rh4 d7 Be7 Nf2 Rf4 Qf3 Ra3 Qg3 Na7 Bb5 Rb3 Bb2 c1R Nf7 Rc2 d8N Bd7 Ba4 Bb5 Nc6 Qc8 Rhg1 h1B Rg2 Bd8 Rb1 Ne7 g8B Qe6 Nd4 Qb6 Rbg1 Be8 Rh2 Bf3 Ba1 Be2 Rh7 Qb4 Rg2 B2b5 Nd6 Qa3 Nd3 Qb2 Nd1 Nac8 Nc4 Na7 Nd2 Nd5+ Ke2 e3 Nf2 Re4 Kf3 e2 Be6 e1B Bc8 Re3+ Kg4 e4 Kh5 Nc3 Kh6 Rf3 Bd7 e3 Bc6 Rf4 Bf3 Qa3 Bd1 Nb1 Bc3 e2 Bb2 Bf7 Ba1 Qb2 Nde4+ Ke7 Kg7 Bfe8 f6+ Kd7 f7 Bc3 Ne1 Bg5 Ned3 e1Q Kf8 Qg1 Qa8 Kc7 b8N Kd8 Nd7+ Kc7 Nd2 Kd6 Qb8+ Kd5 N4f3 Ke6 Nde4 Qc1 Bb2 Kf5 Ba1 Bd2 Bd4 Bc3 Be5 Qb2 Nd4+
nbr1n1kr/4P3/N3R1BR/K4Q2/1nbn1R2/RR2p2q/1Q1Bq1P1/2B1rN2 b - - 0 1 illegal: No proof kernel
6q1/Qq1bp1Q1/1b1N3r/NRr1N3/K1N1Rn1B/1R1P3P/2bbN3/1B1nrk2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 a4 Kd6 h6 Kc5 d6 Kd4 f6 g5 f5 b5 h7 c5 f7 g4 f6 g3 a5 c4 a6 c3 h3 b3 a7 b4 d7 c2 Qg4+ Ke5 Ra3 g2 Qg7 Kd4 Bd3 b2 Rb3 Nh6 Na3 b1Q Nc4 Nc6 Bf5 Qe8 d8N Ng4 Nb7 Nf2 Nba5 Nd8 Bg6 Rb8 a8Q Rb5 Qa7+ Rc5 Bd3 Ne6 Ne2+ Kd5 Rf1 Nd1 Rf4 g1B Re4 Nf4 Bb2 c1R Bc3 Qb2 Bb1 Bf5 d3 Bd7 Bd4 Qc8 Bf2 Qa2 Bh4 Qb7 Qg8 Bh6 Qg7 Bd4 f8R Bg5 f7 Be3 Rc3 b3 Rb8 b2 f8N Bf2+ Kd2 Qab3 Ba2 b1B Ng6 Bc2 Bb1 Bd4 Nge5 Bg1 Re3 Qa2 Rb3 Bf2 Nc3+ Kd4 Re1 Bg1 Ne2+ Kd5 Qb6 Qa6 Bg3 Ne3 Kc3 Rc6 Kb4 Ne6 Nd4 Qa8 Re2 Re1 Nd2 Nd1 Ra3 B5e3 Bf2 Nf4 Qa7 Rcc8 Rb6 Qb7 Bh4 Rc6 Kb5 Rhc8 h8N Rh6+ Kb4 Rc7 Nhf7 Bgf2 Nf1 Bd2+ Rc3 Rcc6 Nd6 Qc4+ Ka3 Kc5 Rcb3 Qg8 Re4 Kd5 Ne6 Rc3 Rbb4 Bb6 Rb5+ Rc5 Ka4 Qbc8 Nf8 Qc7 Nec4 Qb7 Re5+ Kd4 Ng6 Re3 Ng3 Re4 Nb2 Ke3+ Nbc4+ Kf2 Re6 Re1 Re4 Kg2 Ne2 Kf1 Nge5
5k1q/1n2p1R1/3BBr1Q/2Rb2br/3PPbK1/1QR4r/1Qb2N1q/1NR1n1R1 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 Kf2 c5 Kg3 a5 b4 f5 h4 a4 d4 c4 e4 f4+ Kg2 a3 g6 f3+ Kg3 a2 b6 f2 h5 c3 h6 c2 g7 Na6 b7 Nc5 b8R Bb7 d6 Nd3 b5 Ra3 b6 Nf6 g8R Bd5 h7 Nd7 b7 N7c5 Bh3 f1B Bf4 c1B Rg7 Ne1+ Qb3 Bd3 Rc8 Bc2 b8Q Nb7 Rc5 Bd2 Kh4 g3 Be6 g2 Nh3 g1Q Nf2 Qh2+ Kg4 Bc1 Qb2 Rh3 Rg1 Qc8 Bg3 Bg5 Be5 Na5 Q8b3 Nb7 Nc3 Rh5 Rc1 a1R Nb1 Ra6 d7+ Kd8 Bf5 Rf6 Be6 Rh3 Bd6 Qa8 Rf7 Bfh6 Rg7 Bf4 Rc3 Bhg5 Rc5 Rhf8 h8Q Rh5 Qh7 Rh8 Qh6 Rh3 Qg6 R8h5 Qh6 Qb8 Rc3 Qc8 Bc5 Kc7 d8R Qb8 Rd6 Qh8 Ra6 Kd8 Ra5 Ke8 Bd6 Kf8 Rac5
q1Bq4/Rr1P2Qk/qnnp3N/1N4PB/qbrQ4/2R4b/1BbKN3/4B1B1 b - - 0 1 illegal: No proof kernel
1bQ1Q1q1/1k1pb1B1/2N2nNR/n2P4/4q2r/N1nR2Q1/nK1Qr1PB/1Q5b b - - 0 1 illegal: No proof kernel
2nNnr2/1KP1N1Bn/5Rq1/2P1b1qB/2b1n1B1/Q3p1B1/3QR3/1k1rbRB1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Ke2 Kf7 Ke3 Kf6 Ke4 a5 Kd5 e5 c4 h5 f4 a4 b4 h3 g4 h2 g5+ Kf7 f6 Kg6 c6 Kf5 g6 h4 c7 h3 b6 a3 b7 e4 f7 a2 g7 e3 b5 Qg5 b6 Nc6 b8B Ba6 b7 Na7 Ne2 Nc8 Qd2 Bb4 Nbc3 d6 Kc6 d5 f8Q+ Nf6 g8B d4 Bg2 d3 Bf7 Nh7 Re1 h1Q Bf3 h2 Nd5 Qhg2 Bg4+ Ke4 Ne7 h1N Nd4 Ng3 Ne6 Nh5 Bb2 N5f6 Re2 Ne8 Rf1 a1B Bg7 Be5 Bfh5 Qg3 Nd8 Rg8 Qf6 Rf8 Qd6 Bbc3 Qa3 Ba5 Qdc1 Be1 Qd2 Qg2 Ba7 Qg1 b8B Bb5+ Kb7 Qg3 Qda2 d2 Bc5 d1N Qd2 Nc3 Bd4 Bd6 Bdf6 Qg6 Bh4 Qg2 Bf2 Be5 Bg1 Qg3 Qb4 Ra1 Qa3 Rd1 Bd7 Q3g5 Bdg4 Rf7 f5 Rf6 Ba7 Bh2 Bd4 Rf7 c5 Bc4 f6 Bf4 Qdb2 Kd3 Be5 Bfg3 Qa5 Ne4 Qba3+ Bc3 Bd6 Bf2 Bg3 Be1 Q3b4 Be5 Qa8 Rf8 f7 Rg8 f8R Rh8 R8f3 Rf8 Rf6 B1c3 Ree1 Kc2 Re2+ Kc1 Qaa5 Be1 Qd2+ Kb1 Qa3
2kRq2B/2PN3q/1B1QP1q1/2K1Qr2/qR2B3/2R1pb1n/n2R3b/2nr1NR1 b - - 0 1 illegal: No possible last move, all moves rejected
1B1N1nNQ/1nPp1n1N/1N5q/3nRb1P/2rQ4/1r1q1RQ1/K1k1Nb2/3B3r b - - 0 1 illegal: No possible last move
2K2B1R/1PR1Q1Q1/k3B1qR/q4rN1/1b1R1r1n/b3pPBn/1q3Nq1/Rb6 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 Kc7 d4 Kb7 b4 h5 g4 c4 b6 c3 b5 e6 f6 a4 d6 a3 g5 c2 d5 a2 d7 h3 f3 h4 g6 h2 g7 h3 d6 Na6 f7 Nb4 Nd2 Nh6 g8R Nf5 Rg7 Rh5 Ne4 Nd5 Qd4 Nf4 Nf2 Ra4 Bc4 Rb4 Bd2 c1B Be1 Ba3 Qb2 Qc7 d8Q Nh4+ Kf6 e5 d7 e4 Qe7 e3 d8R Re5 Rd4 Bf5 Be6 Bb1 Qc3 Ka8 b7+ Ka7 b6+ Ka6 b8R Rd5 b7 Qa5 Rc8 Ra4 Qe8 Bfb4 f8B Rc5 Ke7 Rf5+ Kd7 Bb2 Ne2 B2a3 Rf1 h1Q Qe7 h2 Ng1 Qg2 Ngh3 h1Q Ng5 Qhh3 Rh1 Qhg4 Rg8 Nh3 Rh8 Qh5 Rc7 Qg6 Kc8 Bc5 Rd5 Raf4 Qcg7 Bcb4 Rd4 Be4 Rac1 a1Q Rh2 Qb2 Ra1 Rf7 Nd1 R7f6 Bg3 R6f5 Nf2 Bb1 Rh6 Ng1 Qe8 Rd5 Rh7 Nf5 R2h6 Nh3 Qed7 Nh4 Rh8 Rdf5 Qde7
1Q1q2rq/1P2BNN1/1b3kq1/2rR1bp1/4rBBP/N1q3n1/KBQ2Bn1/4R3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 a5 b4 g5 d4 c5 Kd2 e5 Kc3 e4 Kb3 c4+ Ka2 g3 f6 e3 b6 a4 f5 e2 b7 e1R d6 c3 b5 c2 d7 a3 b6 g2 d5 Re4 d6 Ne7 Ne2 g1Q Nf4 Qd4 Bh3 Qg1 Bb2 c1Q Bg4 Qc2 Ne6 Qdc7 d8Q Q7c3 d7 Na6 b8B Rg8 b7 Ng6 Bf4 Qgd4 Ng7 Bc5 Re1 Bb6 Qe2 Q2d3 Qc2 Nc5 Qc7 Ra5 Qb8 Qd6 Rd1 Qa6 Rd5 Qc7 Bfc1 Nf4 d8N+ Kf8 f7 Ke7 f8B+ Kf6 Be3 Ng2 Nf7 Qd8 Bd6 Be6 Bf2 Bd7 Nd2 Qd3 Re1 Rb5 Ka1 a2 Bf4 Be6 Rd7 Qd6 Nc4 Qc6 Rd5 Qce8 Nfe5 Qg6 Na3 Qc4 Qc1 Rd4 Bc3 Ke7 Ne8 Ne4 Qc2 Rc5 Nf7 Ng3 Kb2 Re4 Ka1 Qd4 Kb2 Qh8 Ng7 a1Q+ Kb3 Qd1 Ka2 Qd3 Bb2 Qd4 f6+ Kf8 Nh6 Qc3 f7 Ke7 f8B+ Kf6 Nf7 Bf5 Be7+
K2n1qQ1/NP2kb2/3b2N1/1QRRq1p1/n2P4/b1bB1R2/n2r3N/2rN1NB1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 c5 Ke3 e5 Ke4 g5 f4 a5 h4 g3 b4 g2 d4 a4 h5 a3 h6 a2 h7 c4 f6 c3 b6 c2 b5 Ba3 d6 Bb4 Kd5 e4 b7 e3 f5 e2 b6 e1Q d7+ Kf8 f7 Bd2 Qe2 Bb4 Rh3 Bd6 Be3 c1N Qb5 Qe2 Nd2 Bg3 Ngf3 g1B Nh2 Nd3 Rc1 a1B Rc5 Qe8 d8R Be1 Rf3 Nd7 Kc6 Ra5 b8N Ke7 f8N Bc3 Ne6 Nh6 Nf4 Ra2 Nh3 Qf8 Nf2 Nc1 Nd1 Nf7 b7 Rb2 Kc7 Nb6 Rdd5 Na2 Bf2 Qe6 Bd3 Nd8 Ndf1 Rd2 Be3 Rg8 h8Q Na4 Bf2 Rg7 Qg8 Qe4 Be3 Be6 Bf2 Bf7 f6+ Ke6 Nc6 Qe5+ Kc8 Bb4 Na7 Ba3 Bh4 Be3 Bf2 Bf4 Bg1 Rh7 Rc7 Rh3 Kb8 Rg3 Ka8 Rgg2 Be4 Rc2 Rcc5 Bc3 Bg6 Rc1 Bd3 Rd2 Qg7 Be8 f7 Ke7 Qg6 Qeh8 Qg8 Bd6 Qb1 Qe5 Qb5 Qh6 f8N Bf7 Ne6 Qhg7 Nf4 Qf8 Ng6+
r1rrk3/1PQN1qb1/rb1KBPn1/RR2N2N/5B1n/Q4q1p/4b3/2N1N2R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 h5 Kd3 c5 Ke4 a5 Ke5 h3 g4 e6 d4 c4 b4 a4 f4 h2 b6 c3 b5 c2 f6 h4 f5 a3 d6 h3 g5 a2 g6 Ra4 d5 Rhh4 g7 Be7 f7+ Kd7 f8N+ Ke8 b7 Rhg4 b6 Qc7 Na3 Bd8 Qf3 Rgd4 Ne2 Qf7 Nd7 Ra8 Bf4 c1R Nc2 Nh6 g8N Rd2 Ne1 Nc6+ Ke4 e5 b8R Bf6 Qa3 Ne7 Bg2 Rc7 Nc1 Bg7 Bf1 Ng6 Ngf6+ Kd8 Nh5 Ke8 f6 Nf5 Be2 Nfh4 Bg4 Rc3 Be6 Rdd3 Rb1 a1R Rb5 Rd1 Rb7 Rd2 Ra7 Ba6 b7 Rcc8 Rb2 Be2 Rb5 Nf3 Kf5 e4 Raa5 e3 Ke4 Ra6 Kf5 Nfh4+ Ke4 Rda2 Kd4 Rd8 Kc5 Rc2+ Qc3 Bh8 Nb8 Bf1 Ra2 e2 Bh6 Ra7 Rg1 h1Q Bf4 Qf3 Rh1 Bg7 Ra3 Ra8 d7+ Kf8 d6 Re8 d8Q Rd2 Qc7 Rc8 d7 Raa2 d8N Ke8 Ndc6 Rdd8 Ne5 Ra1 Ne1d3 e1B Nbd7 Bf2+ Kd6 Bb6 Ne1 Be2 Ra6 Ra3 Qd3 Rb3 Ra1 Rba3 Qb3 R3a7 Raa5 Ra6 Qa3
K2b2R1/Bp1P3k/N1q1RrrQ/3N4/8/1n1Pr2B/Nqb1n1qQ/N2BNr2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 e5+ d6 b3 a4 c6 g4 e4 f4 e3 d3 b2 g6 e2 f6+ Kh6 g7 e1R g5+ Kh7 f5 h4 a5 h3 a6 h2 a7 Ne7 g8N Bd7 f7 Nc8 f6 Re2 Ne7 Bh3 d7 Nb6 Nf3 Rc2+ Nc3 b1R Ne1 Nd5 Qd2 Bh6 f8Q Bf5 f7 Qc7 Ra6 Bg4 Rg1 h1Q Qh2 Re2 Be3 Rg8 Bh3 Qg2 Na2 Nc3 Nd5 Rg6 Qfd6 Qc8 Qdf4 Rc1 Kb6 c5+ Qd6 c4 f8N+ Kg7 Ne6+ Kh7 Qdf4 Nc6 Nc5 Na5+ Qf6 Bf8 Nb3 Be7 Na1 Nb3 Qfd6 Rb8 a8N Qc6+ Ka7 Rf8 Nac7 Rff6 Ka8 Bd8 Ba7 Re3 Rb6 Ne2 Na6 c3 Qdf4 Qb5 Re6 c2 Qd6 Rd1 Qf8 c1Q Qh6+ Kg8 Qb8 Qbc6 Qh2 Rg7 g6 Qb2 Nf3 Rf1 Ne1 Rgf7 g7 Rg6 Qg5 Kh7 g8B+ Kg7 Qgf4 Rff6 Bf7 Kh7 Be8 Rg7 Bh5 Rgg6 Qg5 Nf4 Qh4 Bd1 Qg5 Bc2 Bd1 Ne2 Qgf4 Qh1 Rg4 Qg2 Rg3 Rh6 Rg8 Rhg6 Qh6+
2n1Q2Q/P1KNR2r/b3Nb2/n4r2/2p2Qqn/bNPq2N1/B2RnkN1/3B4 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 f4 Qd8 fxg5 h6 g6 Ra6 g7 Ra8 g4 Be7 g5 Bc5 g6 Bf8 Bg5 hxg5 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kf4 e4 Ke3 a4 f5 h4 b5 c3 c5 a6 f4 a7 b4 a5 g4 e6 d6 e7 b3 e8N b2 e5 g3 h5 f3 a6 g2 h6 f2 e6 Qa5 h7 Nd7 Kc6 d5 e7 d4 Be2 f1N Qc1+ Kf2 Ra2 d3 Nd6 d2 e8Q d1Q Nf5 Ng3 Nd2 b1N Nh4 Na3 Nb3 Nh6 g8N Qd3 g7 Nhf5 Rd2 Qa4+ Kc7 Nc4 Bd1+ Ne2 Nf6 Ndb6 g8B Na5 Nd7 Qg4 Bf7 Rb8 a8N Be7 a7 Bf6 Rh3 Ba6 Re3 Nc8 Re7 Rf8 h8Q Rb7+ Kd8 Rc7 Bc4 Rb7 Nc7 Rf7 Ne6 Rh7 Na1 Rb5 Ba2 c4 Kc7 Rd5 Nb3 Rb5 Ngf3 g1B Ng2 Nh4 Nh2 Rf5 Nf1 Bh2+ Kd8 Bd6 Ng3 Ba3 Kc7 Qdd4 Qc2 Qd5 Qe4 Qd3 Qf4+
rR2N2n/PN1B1BNK/n3qrp1/5bQ1/2b1q2R/BP6/3bb3/k1Q2nNN b - - 0 1 illegal: No proof kernel
n2rN1RK/P1BRb1B1/krq1p3/1bQN4/1nBq1R2/4P1bR/6br/2R3Q1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 g5 fxg5 Na6 gxh5 Nb8 b4 axb4 Kf2 Kd7 Ke3 f5 Kf4 b5 Ke5 c5 a4 Kc7 h4 Kb6 d4 b3 a5+ Ka6 h6 b2 h5 c4 h7 f4 e3 f3 h6 b4 g6 b3 g7 e6 d6 f2 d5 Kb5 a6 Be7 a7 Na6 d7 Nc5 d6 Qa5 d8R Qa6 d7 Qb6 Nd2 b1R Bb2 Qc6 Rh4 Nf6 g8R Ne8 Ne4 Ba6 Nh3 Nc7 Rf4 Bb7 Be2 f1B Nf6 N5a6 Ne8 Nb4 Bc3 Rb2 Rc1 Ka6 Qd5 Rc8 Qc5 Na8 Bd4 Bd6+ Kf6 Rb8 Bd3 Rh2 Kg7 b2 Be5 Be7 Bc7 b1Q Be2 Qb5 Bd3 c3 Bc4 c2 Ng1 Bd3 Ne2 Qb3 Nc3 Qa4 Nd5 Bd6 Rc8 Bc6 d8Q Rb6 Qg5 Be4 Rb8 Bg2 Rd8 Be7 Qg4 Bh4 Rd7 Bg3 Ba2 Qd3 Bc4+ Bb5 Qd1 Qd2 Qg1 Qd1 Rh4 Qf3 Rh3 Qf4 Rf8 Qd6 Rf4 Rf8 h8B Qc6 h7 Qa1+ Kg6 Qd4 Bg7 Rg8 h8R Rf8 Rb1 c1B Kh7 Ba3 Rc1 Rg8 Nef6 Rd8 Rg8 Na2 Kh8 Bb4 Qf8 Be7 Ne8 Nb4 Qf5 Bf6 Qe5 Bg5 Qd6 Be7 Qc5
RqN1n1Qk/P6P/3b4/N2QR2n/b2q1Brr/1Q6/2Qp1bB1/r1rB1KQ1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 f4 d5 h4 b5 a4 g5 f6 e5 a5 b3 c6 b2 h6 b4 c7 d4 f5 e4 h7 d3 c5 e3 c6 e2 h5 g4 a6 b3 h6 g3 Bf4 g2 Nd2 b1R Nc4 b2 Nh3 g1B Na5 Bh2 Nf2 Ne7 Ne4 Bd7 c8Q Qe8 c7 Bg7 Bg2 Ba4 Nd6+ Kf8 f7 Ng6 a7 Rg8 h8Q Bd4 Qe5 Qd8 Qd5 Na6 h7 Kg7 f8Q+ Kh8 f6 Rc1 f7 b1Q Rf1 Rb8 Qh3 Qb2 c8B Nc7 Bg4 Rb4 Nc8 Ne8 Qfc5 Qb1 Qe3 d2+ Kf2 e1R f8Q Rbc4 Qc2 Qb8 Bd1 Qf6 Qb5 Bb6 Ra3 Qd4 Qbb3 Bc5 Ra2 Bg3+ Kg1 Bd6 Rb2 Ra1 Qf2 Re4 Re1 Rc6 Qfe3 Bf2+ Kf1 Rc4 Qg3 Rc3 Qh2 Rc4 Qg1 Rc3 Be3 Rh4 Bf4 Rc6 Re5 Rc5 Bg5 Nf4 Qff7 Nh5 Bf4 Rgg4 Qfe6 Kg7 Qg8+ Kf6 Qe3 Qb3 Qb1 Rc1 Qc2 Qb7 Rb4 Qa8 Qeb3 Qb7 Qge6+ Kg7 Rb5 Qc7 Rb8 Kh8 Ra8 Qb8 Qg8+
Q2qB1BB/B2kR1bR/1P2b3/b2r2Bb/n1N1P1pn/3N1QK1/3b1r2/2b3R1 b - - 0 1 illegal: No possible last move
KbQ2N2/n2RN1r1/1pP1bkN1/3b2bn/5N2/5QbB/q1P3RB/2r1RN1b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 e5 Ke4 g5 Kd5 b3 f4 g4 h4 d6 a4 e4 a5 b6 h6 b2 h5 e3 f6 e2 a6 e1B f5 g3 a7 g2 h7 Qc7 h6 Be7 Nh3 g1B Nf4 Ba5 Nd2 b1B Bh3 Bh2 Qf3 Nc6 Nf1 Be1 Rg1 Beg3 Rg2 Qb7 Be3 Qa6 Bg1 Rb8 a8N Na7 Nc7 Rb7 c6 Qa5+ Kc4 Bd8 Ncd5 Qa2+ Kb4 Be6 Ne7 Qb2+ Ka4 Bba2 Re1 Qa1 Kb4 d5 Ka4 d4 Kb4 Nc8 Kb5 d3 Ka6 d2 Qe2 d1B Qf3 Kf8 f7 Bed5 Nh5 Bb8 Nf4 Bg3 Bh2 Na7 Qe4 Nf6 Qf3 Rg8 h8R Rd7 h7 Kg7 f8N Nh5 f6+ Kf7 N8g6 Rg7 Re8 Be6 h8Q Bad5+ Qa3 Rd6 Kb7 B1f3 Ka8 Qa2 Rg8 Bfe4 Rd2 Bh1 Qf3 Be4 Rg2 Rd1 Re8 B4d5 Rg8 Bdc7 Rd8 Rc1 Rd7 Bh4 Qc8 Bg5 Ne2 Bg3 Nef4 Bf5 Ne2 Ke6 f7 Kf6 Nef4 Bfe6 f8N
rR2qQ1b/1N1N1pr1/RR1rQ1r1/1Br2N2/KN6/1P2nP1n/k2BNb2/3r4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Nb8 d5 Bg7 Nc3 Kf8 Nb1 Bd7 e6 Bh6 exd7 Kg7 Qg4+ Kf6 Qd1 Bf8 Kd2 Ke5 Kc2 h5 Kb3 c5 g4 a5 g5 c4+ Ka4 h3 f3 h4 g6 c3 b3 c2 g7 h2 b6 h3 b7 Nh6 g8N Ng4 Bg2 Na6 b8R Nb4 Kb5 a4 Bh6 c1R Qf1 Kd4 Bd2 e5 Ra2 a3 Nf6 e4 Ra1 a2 Bg5 e3 Nd2 Kc3 Qf2 Kb2 Bf1 e2 Qe3 e1B Nde4 Nf2 Ng3 Bg7 Nf5 Qe8 Bd3 Rc3 Ne2 Rg8 Qe7 Ra6 Bd2 Bh8 Qe4 Rcc6 d8N Nc2 d7 Ne3 d6 Rg7 Nb7 Rc5+ Kb4 Rac6 d8N Ra6 Rg1 h1R d7 h2 Bb5 Nh3 Nc6 Bf2 Rg6 Rd1 Rh6 h1R d8Q Rhg1 Nd7 Qe5 Rf6 R1g6 Qf8 Qe8 Qee7 Rb6 Ka5 Ka3 Nb4 Kb2 Rc6 Ka3 Qe6 Kb2 Rc7 Rd6 Rc6 Ka3 Rb1 a1R Rb6 Ra2 Rc1 Re5 Ra1 Rc5 Nc2+ Kb2+ Kb4 Ra7 Raa6 Ra8 Ka4 Ka2 Nb4+
2Q1n3/R1QqnNR1/Rb2b3/B5K1/rR2N1Rr/bp1PkrP1/3Q2b1/1r5B b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 a4 Kd4 g6 h5 d6 b5 d7 c5 a5 e6 d3 b3 a6 b2 g7 b4 a7 h4 g3 b3 f6 h3 f7 h2 Ra6 c4 Qd2 c3 Bg2 c2 Nc3 b1R Nf3+ Kc5 Ng5 Kd4 Nce4 Ba3 f8R Nf6 g8R Nc6 Rg7 Ne8 Nf7 Ne7 Kg5 e5 f4 Rh4 f5 Qc7 d8Q+ Qd7 Rf1 h1B f6 Bc5 Ba3 c1B Bb4 Ba3 Rf4 Bb6 Rg4 Rf1 Ba5 Rf3 Bh3 Bg2 Qc7 Qb5 Rh8 Be6 Rhh7 Qd7 Rh5 Rb8 a8R Rc8 R8a7 Ra8 Nc5+ e4 Rh8 Nd6 Rb8 Ne8 Rbb7 Rf4 Rb8 e3 Ne4 e2 Rbb7 e1R Rb8 Bf3 Bg2 Rb1 Bh1 Bg2 Rbb7 Rf3 Rb8 Bbc5 Rb5 Bb6 Rb4+ Kd5 Nfd6 Ke5 f7 Kd5 f8Q Ke5 Nf7+ Kd5 Rb5+ Kd4 Qdc3+ Ke3 Rb4 Nd6 Qfb8 Ne8 Qbc8 Rh3 Rb7 Ba7 Rd6 Bd4 Bb6 Ra6 Ra7 Ra4 Ba5 Rh4 Rda6 Bb6 Qd2#
1RN1N3/bk3r1n/br2QRRb/4q3/3NP2K/2r2NNB/P2p2rB/Q5nb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 b5 Kg3 g5 h4 d5 c4 Kd7 h6 Kc7 e6 f5 e3 g4 h5 f4+ Kf2 f3 Kg3 f2 c6 d4 c5 d3 h7 b3 e7 b4 h6 b2 Bh3 f1R Qb3 Ba6 Nc3 b1R Ne4 Rf7 Qe6 b3 Kh4 b2 Nf3 g3 Rf1 g2 Ng3 g1B Rf2 Qd7 e8N+ Kc8 c7 Kb7 c8R Nf6 Nd4 Rg8 h8N Qb5 h7 Nbd7 Ng6 Ne5 h8Q Nh7 Rf6 Bh6 Qg7 Ra7 Ra8 Qa5 Bd2 Qc3 Be1 d2 Bf2 Rc1 Be1 b1B c6+ Kb6 c7+ Kb7 c8N Be4 Qh8 Bh1 e4 Rb1 Qg7 Rb6 Rc1 Qb2 Rc6 Bge3 Bf2 Rc7 Bg1 Nf3+ Kh5 Qc3 Bh2 Ng1 Kh4 Qa5 Qh8 Qe5 Rd6 Rc3 Rc6 Qb5 Ne5 Bf2 Nef3 Qe5 Qc4 Rg5 Rg6 Be3 Rcf6 Bf2 Qe6 Be3 Nf1 Rg2 Ng3 Rb5 Ncd6+ Kb6 Rf7 Rc1 Nc6 Qd5 Rf5 Rf7 Qc3 Qe5 Nc8+ Kb7 Rff6 Ba7 Ncd4 Rb6 Qa1 Rc3 Rb8+
2Q1rR2/1B4RN/Q2KB1N1/b1pb2P1/nB2BQ1P/2r1Bq2/nb6/4rbrk b - - 0 1 illegal: No proof kernel
N1Q4B/r1qn1Nb1/1n2n1P1/1pNrr2b/r4kR1/2B4K/1n2RP2/1N3NQB b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 g4 b5 d4 c5 a5 h5 g6+ Kf6 a6 e5 a7 b3 d6 e4 g7 h4 d5 Ke5 d7 b2 g5 c4 d6 c3 f6 h3 f7 h2 g6 e3 Ke2 c2 Kf3 e2 Kg3 e1N Ne2 Rh7 Bg2 Nd3 Bd2 c1N Rg1 h1R Ra2 Ne7 g8Q Qc7 d8B Nf4 d7 R1h5 Bh1 Bg7 f8N Ned5 Ne6 Nb6 Nc5 Ncd3 Bf6+ Kf5 d8N N8d7 Bdc3 Ne6+ Kg2 Kg4 Qf8 Rd5 Ng3+ Kf4 Nf7 Rhh5 Qg8 Rhe5 Nf1 Bb7 Kh3 Bc6 Nbd2 b1R Qc8 Rb4 Nb1 Ra4 Re2 Nb2 Qe1 Rdd4 Rg3 Bf3 Qd1 Bh5 Rg4+ Kf5 Qe1 Rdd5 Qc1 Rb8 a8N Rb7 Nfd2 Rba7 Qg1 Qb8 Nf1 Qc7 Rg2 Kf4 Rg3 Bh6 Bh8 Bg7 Rg4+
B2K1B1Q/2B5/nr1P1rBN/1Pp2N2/b1R3rn/N2b4/kbqB2Q1/br1R4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 b6 h3 d6 a4 g5 h2 g6 e6 f6 a3 f5 h4 d5 h3 g7 a2 d7 Qe8 d8N Na6 f7 Nf6 g8B Bd7 d6 Bg7 f8B Rh6 b7 Ne4+ f6 Qg6 b8B Ng3 Bc7 Nf5 Qd2+ Kb3 Qg2 Rb8 Bh7 Ba4 Nf3 Rb6 Bd2 Nh4 Nf7 Qc2 Na3 Bh8 Rg1 h1R Rc1 a1B Bg6 h2 Nd4+ Ka2 b4 Bg7 b5 Bb2 Kf4 e5+ Kg5 e4 Nf5 e3 Bd3 e2 Rgd1 e1R Be4 Reg1 Ba8 Qb3 Rc4 Qc2 Ne5 Ba1 f7 Bh8 Ng4 Bhb2 Bh5 Rf6 Ngh6 Rf1 Bg6 Rf4 Be7 Rg1 f8Q h1B Qh8 Re1 Bf8 Rd4 Qf2 Be4 Qg2 Bd3 Ne7 Rf2 Nef5 Rg1 Kf6 Rg4+ Ke7 Rh1 Ng7 Rf6 Ngf5 Rg1 Kd8 Rf1 Re1 Rg1 Re3 Rc1 Re1 Rb1 Rd1
1N3n2/Rk2n1R1/p4n1r/bNRb1Qq1/2b1b3/QPRn4/rBP1K3/RB4B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 g5 f4 e5 h6 d5 f6 Kd7 f7 Kc7 h7 e4 b6+ Kb7 h5 e3 h6 e2 f5 d3 f6 d4 Be3 a6 Rh5 g4 Nc3 g3 Rc5 g2 Nb5 Nd7 Qc1 Rb8 Nf3 g1N Ne5 Nh3 Bg1 Ne7 Nc6 Ng5 Qe3 Bg7 f8R Ne6 f7 Nf6 Rg8 d2+ Kf2 e1N f8Q d1B Qa3 Qd5 Bc4 d3 Ba2 d2 Bb1 Qg5 b3 Be2 Qf7 d1B Qh5 Bf8 Rg7 Bc4 Qg6 Bd5 Qf5 B1f3 Kf1 Bh1 Ke2 Bhe4 Rc3 Bd7 Rc5 Rc8 Nb8 Nd3 Rc3 Rc6 Rc5 Rg8 h8R Be8 h7 Bf7 Rg6 Bh6 Rg7 Rgc8 Re8 Nf8 h8B Rd6 Rc3 Rc4 Rc8 Ra4 R8c6 Bc4 Rc5 Bfd5 Nd4 Ka8 b7+ Ka7 Nb5+ Kb6 Qb4 Ra2 Qa3 Neg6 Rh7 Nh5 Nc6 Ne1+ Rd3 Bg7 Qc8 Be5 Qf5 Bc3 Rc7 Ba5 Bb2 Re6 Rg7 Rd6 Nb4 Ne7 b8R+ Bb7 Nc6 Rh6 Ra8 Nf6 Nb8 Bbd5 Kd1 Kb7 Rc3 Nd3 Ke2 Rh4 Qe6 Rh8 Qf5 Rh6 Ra7+
2Q1qR2/1rR1k1P1/6BQ/2Nnb2R/1Bp4b/K2B1Prb/n3nN1b/4RR1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 h5 Kd2 c5 Kc2 e5 Kb3 a5 g4 h4 f3 e3 b6 e4 b7 a4+ Ka3 h3 b4 h2 g6 e2 g7 e1N g5 c4 d6 e3 d7+ Kf7 d5 e2 d6 Ra6 b5 Qf6 d8Q Bg4 b6 Ne7 g8B+ Kg7 d7 Qc6 g6 Kf6 g7 Bf5 Qc8 Be6 d8R Rh3 Qd2 Qe8 Nc3 Nd3 Rd6 e1B Bf7 Ra7 Rc6 Bh4 Bg6 Nf4 Bfd3 Ne2 Qh6 Na6 b8R Rg3 b7 Nb4 Bd2 Ned5 Nh3 Ke7 Rae1 Na2 Rhf1 h1N Nf2 Bd7 Ra8 Bh3 b8R Rb7 Nce4 Rc7 Rb5 Rb7 Kb2 a3+ Kb1 Nac1 Nc5 a2+ Kb2 a1B+ Ka3 Be5 Bb4 Na2 Rc7+ Kf6 Rc6+ Bfd6 Qd7 Qe6 Rf8+ Qf7 Qf5+ Ke7 Qc8 Qe8 Qd2 Bb2+ Ka4 Ne3 Na6 Rg1 Rh5 Nd5 Nc5 Bh2 Qh6 Bbe5 Ka3 Rg3 Rc7+
2R3BB/1KbnPnP1/NQQ3q1/bn1Q4/1bn5/1b5p/5B1Q/rQk2rNR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 d4 a5 d6 c5 Kd5 h5 e4 f5 d7 c4 g6 c3 g7 f3 b6 a4 e5 f2 g5 c2 b7 Kb3 g6 f4 e6 h4 Be3 h3 Qc1 f3 Na3 Qf6 d8B Ra5+ Nb5 Nh6 g8Q Nd7 Kc6 a3 b8Q a2 d5 Bb4 d6 Nf7 Nc7 Rf5 Qb1 c1B Qa8 Bcd2 Na6 Rf4 Bd3 f1N Bf2 Ne3 e7 Nf5 Bdb6 Ba5 Bbd4 Bdb4 Qd8 Qe6 Qb6 Rd8 Bh8 Nd4+ Kc7 Nb5+ Kc6 Rf8 g7 Qg6 Qab7 Re4 Q7c7 Re1 Bc4+ Ka4 b3+ Ka3 Bd5 Nc5 Qcb7 Be6 d7 Rd1 d8Q Nd7 Bc4 Rf1 Qdc7 Ra8 Qe5 Ra7 Qd5 Ra8 Q7c7 Ra7 Qh2 Ra8 Qbe4 Kb2 Rc1 a1B Rc2+ Kb1 Kb7 Be5 Qdc6 Bc7 Qf5 Bd2 b4 Be1 Rc3+ Kb2 Ba2 Bb3 Rc5 Bc3 Qfd5 Kc1 Rc4 Na7 b5 Bb4 Qbd4 Bba5 b6 Nb5 Q4c5 Ra7+ Kc8 Bb4 b7 Bba5 b8Q Bb4 Bg3 f2 Q5b6 Ra8 Nc5 Ra4 Kb7 Ra3 Na6 Ba5 Bb1 Ra1 Bd3 Bb4 Rc5 Ba5 Bc4 Bcb4 Bh4 Rd1 Bg3 f1N Bf2 Nd2 Qh5 Nh6 Bg8+ Nc4 Qhd5 Rf1 Qf6 Bf4 Rc8 Nf7 Qfc6 Bg3 Qbe5 Bf4 Qee4 Bc7 Qb1+
K1kb1Bn1/1p1N1Rn1/Q1nqbr2/3NP1B1/n1Q5/1RbN1B2/1Pr5/3NbN2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 Kf2 Kd7 e4 g5 h4 c5 d4 f5 a4 g4 a5 c4 a6 c3 h6 f3 Ke3 g3 e5 g2 h7 c2 h5 f2 h6 Qa5 d6 Nc6 d5 Rb8 Nc3 Nf6 Nf3 g1B Nd2 Qa2 Rh3 Bg7 Nd1 Nb4 Kd4 f4 Kc5 f3 Kb6 Nh5 Bg2 Bf6 Nf1 Ng3 Bg5 Rg8 h8Q c1B h7 Rg6 Qg8 Qa3 h8B Nh5 Bg7 Bd2 Bf8 Bc3 Qf7+ Kd8 d7 Ng7 Qa8 Nc6 a7 Qe7 Rh7 Rh6 Ra3 Qd6 Rb3 Bh2 Qe6 Bg3 Qg4 Be7 Qc4 Rf6 Bh1 Ne6 Rf7 Ng7 Kb5 Kc7 d8N Be6 Bg2 Kc8 Kb6 Bf5 Ne6 Bd8+ Nc7 Be6 Nfe3 f1N Bh1 f2 Bf3 Nd2 Nf1 Qa3 d6 Bh4 Qc5 Ne4 Qc4 Be7 Nd5 Nc5 Nd2 f1N d7+ Kd8 Nb4 Be1 Nd5 Nh2 Nf1 Rc8 Qb8 Bcd2 a8N Ng4 Qa7 Bc3 Qaa6 Nb8 Ka7 Nh6 Nab6 Ng8 Ka8 Na4 Nf4 Rc7 Nd3 Qd6 Nd5 Rc6 N5e3 Kc7 d8N Kc8 Nd5 Rc5 Nc6 Bd8 Ncb4 Rc6 Nc5 Rc7 Nd7 Rc5 Nd3 Nc6 Bf4 Bca5 Qc1 Rc2 Bg5 Bab4 Qf4 Bbc3 Qfc4
R2B1NBq/1P4R1/rQQ2qnQ/r3B2K/N2bQ2p/1q3QrP/3q4/2q1nk2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 exf4 cxd5 f3 Na3 f4 Nb1 Bf5 gxf5 Qd6 Ra3 Qe7 Ra1 Qd8 Kf2 Kf7 e4 Kf6 b4 Ke5 h3 Kd4 f6 c5 f7 h5 e5 g5 e6 a5 e7 g4 e8Q c4 b6 c3 b5 a4 d6 c2 d7 a3 b7 a2 b6 h4 Bc4 Ra5 Nc3 Nc6 b8Q Bg7 f8Q Nge7 b7 Rh6 Na4 Ng6 Bg8 Kd3 Bb2 c1Q Ne2 Nd4 Qc8 Nc2 Nd4 Ne1 Ne6 Qc4 Bd4 Qb3 Be5 Qg5 d8B g3+ Kf1 f2 Rg1 Bh8 Qcc6 Bg7 Qf6 Bh8 Nf8 Bg7 Rc1 a1Q Qfe6 Qd4 Ra1 Qh5 Qdf3+ Qe3 Bb8 Bd4 Rg2 Qe5 Ra3 Qh8 Be5 Rh5 Q8e7 Ra6 Qh7 Rf5 Qh6 Rg5 Bg7 Rb5 Be5 Rba5 Rg1 Nc2 Kg2 f1Q+ Kh1 Qc1 Kg2 Qf6 Qed5 Qh8 Qfe4+ Ke2 d3 Bc5 d4 Qd2 Qf7 Qc1 d5 Bd4 d6 f3+ Kh1 f2 d7 f1Q Ra1 Qf4 Kg2 Qg5 Qff4 Qgf6 Qff3+ Kd2 Be7 Qef4 d8Q Qfe3 Qdb6 Qeg5 Qff5 Qge3 Bd8 Ke2 Qef4 Qed2 Qfe6 Kd3+ Kf3 g2 Kg4 Ke2 Kh5 Ne1 Qec4+ Nd3 Qc3 Ne1 Qfe4+ Kf2 Rh1 g1R Qg3+ Kf1 Qgf3+ Bf2 Rh2 Rg4 Rg2 Rg3 Qff5 Re3 Rg4 Rg3 Qff3 Ne7 Rg7 Ng6 Ra3 Rb5 Qa5 Rab6 Nb2 Rc5 Qab4 Rd5 Ra7 Ra6 Na4 Rc5 Qbb6 Rca5 Qd1 Be3 Ra8 Bd4 Qdf3+
N1qq1b2/2NkR2N/2bN4/5Kp1/1BbPn1P1/3rb1QQ/B3N1n1/1q1Rb2Q b - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 a4 exf4 axb5 g5 h5 Ra6 Nh3 Rg6 hxg6 Na6 Ng1 Nb8 Kf2 h5 Kf3 c5 Ke4 f6 g4 h4 b4 f3 d4 h3 b6 f2 b7 a4 d6 a3 b5 a2 b6 c4 d7+ Ke7 g7 c3 Kf5 c2 e4 h2 e5 Rh7 e6 Nc6 b8N Nb4 b7 Rh3 Nd2 Rd3 Ne4 Nd5 Ne2 Nf4 Bd2 c1B Nd6 Ng2 Bb4 Be3 Rg1 h1Q Na6 Qh3 b8Q Qh8 Nc7 Bb7 Na8 Bc6 Qb3 Qc8 Rd1 a1B Rh1 Qd8 Rh7 Bc3 Qd5 Be1 Qe4 Nf4 Qh1 Qc8 Bg2 f1B Bd5 Ng2 Ba2 Kd8 Qb5 Ke7 Qe5 Qd8 Qg3 Qc8 Kg6 f5 d8N f4 Kf5 Nf6 g8Q+ Qg7 Qh8 f3 Qhh3 f2 Qh1 Qf7 Rg7 B3d2 Q8h3 Be3 Nb5+ Ke8 Nb7 Qfd7 N7d6+ Kd8 Nbc7 Ne4 Ke5 Qe8 e7+ Kd7 Kf5 Qed8 e8N+ Be7 Rg6 Bf8 Re6 Rc3 Nc1 Bc4 Ne2 f1Q+ Nf4 Qd3 Ne2 Qb1 Re5 B6b5 Re6 Rd3 Nf6+ Kc6 Nh7 Kd7 Re5 Bc6 Re7+
k5b1/3bn1PR/n1b1n1B1/1RB2QQ1/N1qb4/2p3N1/2PNqNb1/1NK1B1r1 b - - 0 1 legal: proof: d4 b5 a4 a5 axb5 g5 g4 e5 dxe5 Bb7 f4 gxf4 h4 Bc8 h5 Ra6 g5 Rg6 hxg6 Bd6 Nh3 Be7 Ng1 Bf8 Kd2 d5 b4 Kd7 e4 f5 b6 Kc6 b7 h5 g7 h4 e6 d4 e7 h3 e8N f3 g6 d3 e5 f2 e6 f4 e7 f3 Be2 f1B Nf6 f2 e8Q+ Bd7 Qf7 h2 Nh5 a4 Qf5 a3 Nh3 a2 Ng3 Na6 b8B Kb7 b5 c5 b6 c4 Bh5 Bc5 Ba7 Qh4 Qdg4 Bg2 Qgg5 f1B Nf2 Ne7 g8N Ka8 g7 Bd4 Bg6 c3+ Kd1 d2 Nf6 Rf8 N6e4 Bc4 Ba3 Bg8 Bc5 Qf4 Bb8 Qd6 Bc7 Qd5 Bd8 Qc4 b7+ Kb8 Bdb6 Rf6 Bd8 Rb6 Bc7+ Ka7 b8N Ka8 Na3 Rb2 Rb1 a1N B7b6 Ra2 Rb5 Nb3 Nb1 Ra1 Bc7 Be5 Bd8 Nd4 Bdb6 Ne6 Bd8 Bc6 Nd7 Bd4 Nb6+ Kb7 Nh3 Bd7 Nhf2 Kb8 Na4+ Ka8 Rg1 h1B Bc7 Bf1 Bd8 Bhg2 Rh1 Bc6 Rh7 Bd7 Nf6 Bgc6 N6e4 Bg2 Qe3 Nd5 Bh4 Ne7 Qeg5 Qb4 Nh5 Nc8 Nd3 Ra2 Na3 Ne7 Bf2 Rb2 Nhg3 Rb1+ Ke2 Rh1 Nb1 Qb3 Be1 Rg1 Ndf2 Qd5 Kd3 d1Q+ Ned2 Qc1 Ke2 Qb3 Nde4 Qe3+ Kd1 Qc4 Ned2 Qee2+ Kc1
2N5/rb1NRQQ1/2r1q1nB/1Kn5/1BR1qN1p/1Pr3q1/1Nk4P/nn1N3B b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kb3 Kd7 Kc4 Kd6 d4 g5 e4 h5 b6 a5 f5 c5 b3 g4 f6 h4 f7 g3 f8B+ Ne7 e5+ Kd7 b7 a4 d6 Kc6 d5+ Kb6 d7 Ka5 e6 a3 d6 a2 Ne2 g2 Bch6 g1Q Nbc3 Qg8 Nc1 Ng6 Qd5 Qg5 d8N Ra7 d7 Qg3 e7 Qe6 e8N Na6 b8N Bb7 Bg2 f1N Nd1 f2 Nd6 Rg8 Rb1 a1N Nc8 Rh8 Nd3 Nd2+ Kc3 f1R Rc1 Nb1+ Kc4 Rf6 N3b2 Qe4+ Qd4 Rc6 Ne6 Rh7 d8Q+ Rhc7 Nf4 Qe6+ Q8d5 Qe4 Bf3 Qe6 Kd3 Kb5 Qe3 Kb4 Re1 Ka3 Kc4 Ka2 Kb5 c4 Bg4 c3 Nd7 c2 Qed4 Nc5 Bf3 Na4 Q5c5 Qf5 Ne6 Rd6 Qg7 Rcc6 Bh1 Rd3 Qd5 Qf7 Bb4 Nc5 Nf2 Rf3 Nbd3 Qf5 Rcd1 c1Q Nef4 Qc2 Re7 Re3 Qdf7 Qe6 Rc1 Rf3 Nb2 Qce4 Rc4 Re3 Na4 Rc3 Nab6 Kb2 Nd1+ Kc1 Na4 Kc2 Nab2
1b1KbnQ1/5pb1/k1P1QB2/n2QNP1B/2n4b/2NR3q/RN5q/r2qNN2 b - - 0 1 legal: proof: e4 c5 g4 d5 d4 h5 gxh5 b5 a3 a5 a4 Ra7 axb5 Rd7 Nc3 cxd4 Nb1 d3 Bh3 d4 Bf1 Rd5 exd5 Rh6 Nh3 Rh7 Ng1 Rh8 Kd2 Kd7 b4 Kc7 h4 Kb6 c4 e5 f4 g5 c5+ Ka7 d6 a4 c6 g4 h6 g3 h7 e4 b6+ Ka6 b5+ Ka5 d7 g2 b7 a3 b6 a2 h5 Bc5 h6 Bf8 f5 Qf6 d8Q Ba3 Qe7 Qg6 Ne2 g1B Bb2 Qg3 Nec3 Nd7 b8N Bd6 b7 Nb6 Nd7 Nd5 b8N Qe5 Nc5 Qh2+ Be2 Ngf6 N5a4 Ne3 Nd7 Ka6 Qe6 Bb8 Ne5 Nd7 Nf3 Nf8 Ne1 Bd7 Qdb3 Rg8 h8N Be8 h7 Rg5 Qbd5 Nc4+ Kc1 d2+ Kc2 d1N Kb3 d3 Kb4 e3 Kc5 d2 Bh5 Bf2 Ng6 Bh4 h8Q e2 Qg8 Nde3 Ne5 d1Q Nd2 Na5 Nf1 Nec4 Rg1 Rg4 Rg3 Qb3 Rd3 Rg1 Rc1 a1Q Rc2 Qd1 Ba1 Bf6 Ra2 Bg7 Nb2 Qa3+ Kd4 Qd6 Ke4 Qh3 Kf4 Rh1 Kg5 Qc7 Nd7 Qch2 Ne5 Bh6+ Kf6 Bg7+ Ke7 Rg1 Nc2 e1B Kd8 Bh4+ Qe7 Qc1 Nfe3 Rg2 Ne4 Bg5 Nf3 Qe1 Na4 Q2g3 Bf6 Qe5 Nb2 Rg1 Qee6 Bh4 Nc3 Qeh2 Ne5 Rh1 Bd1 Qed2 Bh5 Ra1 Ne1 Qd1 Nf1
7q/rqBB2bP/1QRNRp1n/n1q5/R1RN1P2/r3nR2/2Q2KQr/1nk5 b - - 0 1 illegal: No possible last move, all moves rejected
n2K4/pq5Q/1NkRRnrN/B1q1R3/PQ1R3n/1q5Q/P3B1br/5rRn b - - 0 1 illegal: No possible last move, all moves rejected
8/r1n2Q2/pb1P2Q1/q1b1nq1N/kB3q1n/P3N1Q1/bKR1Q3/1BQqR2B b - - 0 1 legal: proof: f4 d5 b4 c5 bxc5 g5 fxg5 Bg7 h4 Bh6 e4 dxe4 g6 Bf8 g4 b5 g5 a6 h5 Ra7 g7 Rd7 c6 Rd3 Na3 Rd6 Nb1 Rg6 hxg6 Qd4 Ne2 Qd5 Ng1 Qd8 d4 e5 Kd2 h5 Kc3 f5 c7 Kd7 d5 e3 a3 b4+ Kb2 f4 c4 e4 c5 b3 Kc3 f3 Qc2 e2 Qd2 e1B Rh3 h4 Rh2 h3 Bd3 e3 Ne2 b2 Nf4 f2 Nh5 Ne7 g8Q f1Q g7 e2 g6 Nbc6 Qf7 Qf4 g8Q Rh7 g7 Ne5 c6+ Kd6 Kc2 Kc5 Nc3 Be6 c8B Bf2 Nd1 Qa5 c7 e1N+ Kb3 Ng2 Ne3 Nh4 Bb7 Bg1 Bb1 Kb5 c8Q Bf2 Kc2 Ka4 Qe2 Bg1 Rf2 h2 Bd2 h1Q Bb4 Qh3 Kc3 Qhf5 Qg6 Bf7 Rh2 Be6 Q8f7 Bf2 g8Q Bg1 Ng2 Bb6 Ne3 Rg7 Qg3 Rh7 Q8g6 Rg7 Bd3 b1Q Rf2 Qd1 Bb1 N7c6 Kb2 Nd4 Rh2 Bfc5 d6 Ba2 Bh1 Nb5 Rg2 Bd4+ Qc3 Bdc5 Qc1 Rh7 Qec4 Nc7 Rc2 Rh8 Qf1 Ra8 Qe2 Ra7 Qcd2 Bc4 Ba2 Qe1 Rd1 Bd5 Bb1 Ba2 Qc1 Qd2 Rf1 Qd1 Re1
NB2N2Q/q1pRn2Q/n2RR1r1/1r2Pn1r/q2b2kq/2P5/3r1QQ1/1BK2Q2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 Kd2 Kf7 b4 Ke6 f4 a5 e4 h5 c3 d5 f5+ Ke7 e6 Kf6 b6 Kg5 f6 d4 e7 h4 e8R h3 e5 d3 b7 h2 f7 a4 b5 a3 b6 a2 Re6 Qd4 Na3 Rh3 Ne2 g1R Nf4 g2 Nc4 Ba3 f8Q Rh8 Nh5 Nd7 b8Q Bb4 b7 Rh6 Ng7 Bd6 Qf2 Nf8 Ne8 Rh5 Nb6 Ra5 Qa8 Bc5 b8Q Rb5 Qab7 Qa4 Na8 Bd4 Ba3 Ne7 Kc1 Nfg6 Bc5 Nh4 Ba7 Nhf5 Be2 Nd6 Qdf1 Ndf5 Bf3 Kf4 Be4+ Kg5 Rb1 a1N Qd8 Nc2 Bb8 Nb4 Rb2 Na6 Rd2 Ng3 Rd6 Kh4 g5 Kg4 g6 Ngf5 g7 Ra5 Rd1 d2+ Kb1 Rc5 Qb2 Rb5 g8Q+ Ng7 Qh7 Ngf5 Rc1 d1R Qc8 Rd3 Rd1 Rd2 Kc1 Rg5 Bb1 Rg6 Qc4 Rf1 Rg1 h1Q Rd7 Re1 Qcf1 Qh4 Rh1 g1Q Rh2 Qhg3 Rh6 Qh4 Qa2 Re3 Qd5 Rg3 Qdg2 Rg5 Re6 Rh5 Qh2 Qh1 Qhg1 Qb7 Qgg2 Qa7 Qd8 Ng6 Qf6 Nge7 Qfh8 Bb6 Qd3 Rdb2 Red6 Kg5 Qdf1 Rg4 R1d3 Rd2 Rh6 Rg3 R3d6 Bd4 Rhe6 Rg4 Q2e1 Rg3 Qfe2 Kf4 Qeh1 Rg6 Qgf1+ Kg5 Qef2 Kg4 Qhg2+
b1N1B1R1/2rbKP1p/2Q3RP/k1r3B1/1q1n2b1/Q3b1Bb/Q3bN1Q/5r1Q b - - 0 1 illegal: No possible last move, all moves rejected
3B2KN/1B1bBn2/n1rR1b1r/5Q1k/RprPr2b/4n2r/1P4B1/1B1NQ1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 b4 Ra3 Qd7 Ra1 Qb5 axb5 Kd7 Na3 Ke7 Nb1 Ke8 Kf2 c5 Kf3 a5 Ke4 f5+ Ke5 Kf7 g4 Kg6 e4 h5 d4 a4 d6 h4 d7 c4 Ke6 f3 b6 f4 b7 f2 e5 c3 Ne2 h3 Bg2 f1N Qe1 f3 Nf4+ Kg7 g6 Kh6 Kf7 f2 d8B h2 e6 c2 e7 a3 e8B a2 g7 Na6 b8Q Rh7 Ng6+ Ne3 g5+ Kh5 Bec6 f1R+ Qf4 Be7 Nc3 Rh6 Nd1 Bd7 Qf5 Rc8 Bb7 Rf4 Nh8 Rcc6 g6+ Bg5 Rf1 h1R Bd2 c1B Rf3 Nf6 g8B Re4 g7 Rh3 Bh7 Ne8 g8Q Nd6+ Kf8 Rc4 Qg7 Nf7 Kg8 Nf1 Bf4 Ne3 Bd6 Rc6 B6e7 Bd2 Qg1 Be1 Qge5 Bh4 Qg3 Rc4 Q3e1 Rhc6 Qe5 Rh6 Rf6 Rc6 Rd6 Rc4 Rc1 a1R Qf5 Rb1 Rc3 Rc1 Ra3 Rc6 Ra4 R1c4 Qff2 Bf6 Bf5 Rf4 Bb1 Re4 Qf5+
2brQN2/2P1n3/2r1N1Np/2nk1RBr/6Qb/n4b2/NQ1KBN1P/rR5r b - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 gxf5 b5 axb5 Nh6 e4 Ng4 f4 Nh6 f6 Ng4 f5 Qb6 e5 Kd8 f7 Qf6 exf6 Nh6 Ke2 Ng8 Kf2 Ba6 Ke1 Bc8 b4 Kc7 c4 Kd6 c5+ Kd5 b6 a5 b5 e5 b7 g5 b6 e4 c6 a4 c7 a3 Ne2 d3 Nd4 e3 Nb3 d2+ Ke2 g4 Nd4 g3 Nb5 g2 Nd6 g1R Ra2 Na6 b8Q Rg6 b7 Nc5 Ne4 Be7 f8N d6 f7 Bh4 f6 Ne7 Rb2 a2 Ne6 a1R f8N h6 f7 R8a5 Qa4 d1R Nf2 Rf6 Ng6 Rd8 f8N Rb5 Qf4 Rba5 Kf3 e2 Ke3 e1N Rb5 Nc2+ Ke2 Re1+ Kd2 Na3 Be2 Rf1 Rg1 Re1 Qg4 Rf1 Rg3 Rh1 Rf3 Bd7 Bd3 Rc8 Qa8 Kc6 b8Q+ Nb7 Ke2 d5 Bd2 d4 Ng7 Be6 Rb4 Rh5 Bg5 Kd5 Kd2 Bf5 Bf1 Rc6 Be2 Nc5 Rf4 Bd7 Nge6 Re8 Rc4 Rc8 Rc1 Re8 Qb2 d3 Ke3 d2 Nc3+ Kd6 Na2 Kd5 Rb1 d1B Ba6 Rb8 Kd2 Bf3 Be2 Rc8 Nh7 Rg8 Qf8 Bc8 Rf5+ Kd6 Qf7 Re8 Nhf8 Rd8 Rf6 Kd5 Qe8 Na6 Rf7 Nc5 Rf5+
r7/1qk3Nb/QB2Q3/PR2rQQK/3pr1r1/Q2nqr2/2rP2B1/3Bb1RN b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 b5 hxg5 Nc6 Be2 axb4 Bf1 b3 c4 b4 Qc2 Nd4 Qd1 Nb5 cxb5 Ba6 Qg4 Bb7 Qd1 Bc8 Ke2 e5 Kf3 c5 Kg4 d5 f4 Kd7 a4 d4 b6 c4 g6 h6 f6 e4 b7 b2 b8Q e3 a5 b3 f5 e2 g7 e1Q f7 c3 f6 c2 Qf4 Kc6+ Kh5 Qd6 g4 Bf5 g5 Qb8 g6 Be7 f8Q Qb7 f7 Bh4 Qg5 Qe3 Qe2 Kc7 Na3 b1R Nc4 b2 Bg2 Be1 Qa3 Ne7 g8B Nc6 f8Q Ne5 g7 Bh7 Nd6 Nd3 Bb3 Rg8 Qff5 Rge8 g8Q Re5 Ra2 Ra1 Qe8 b1R Qee6 Rb2 Ba4 Rb3 Nh3 Rc3 Bb2 c1R Bd1 R1c2 Nf2 Re4 Rg1 Rb1 Bc1 Rb5 Rb2 Rbe5 Rb5 Rb3 Qfg4 Rbc3 Nf5 Rb3 Kh4 h5 Ng7 Rbc3 Qgf5 Rb3 Qgf4 Rbc3 Kg5 h4 Nh1 h3 Kh5 h2 Q4g5 Rg4 Bb2 Ree4 Qef1 Rc5 Bc3 Rce5 Bb4 Nb2 Nf2 Nd3 Bc5 h1R+ Nh3 Bh4 Nf2 Rh3 Nh1 Rf3 Qe2 Be1 Qa6 Nc1 Qc4 Nd3 Qce6 Rf1 Ba7 Rf3 Bb6+
n1Rk3B/4N3/6Nb/p4r2/1QB1B1PB/1QrrrR1K/Pr1N1r2/2q1nBq1 b - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 Qf6 h3 Qd8 Kd2 g5 Ba3 g3 Bg2 g4 Bf3 b6 Ke1 Bb7 Bg2 Bf3 Bf1 g2 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 e4 h5 f4 a5 c4 d5 f5 d4 c6 d3 c7 b5 c8Q b4 e6 h4 f6 b3 c5 b2 e5 h3 e7 h2 c6 Rh3 c7 Nd7 Nf3 g1R Bg5 g2 Kf2 d2 Qb8 Rg3 c8N Nh6 Qb4 Rh3 Nh4 Qc7 Ng6 Rc3 Qdb3 d1R Nd2 b1R Bh4 Rb2 Rc1 Nb6 f7+ Kd7 Bc4 Rge1 Rf1 h1R Rc2 Bg7 f8B Ree3 Rc1 Qc5 e8B+ Kc7 e6 Nf7 e7 Bh6 Beb5 Ng5 e8B Kd8 Bed7 Rh2 Nce7 Nf3 Kg3 Ne1+ Rf3 Rc8 Bbc6 Na8 Bg7 Rb8 Be8 Rb5 Bh8 Qg5 Be4 Rf5 Nb1 Rdd2 Beb5 Rd4 Bf1 Rdd3 Ba6 Rf2 Bc4 Rb2 Nd2 g1Q+ Bg2 Qf1 Bh3 Rf2 Rc2 Qh1 Bf1 Qg1+ Kh3 Ree2 Nb1 Qc1 Nd2 Ree3 Be6 Rcc5 Bf7 Rb5 Rc6 Rbc5 Bfd5 Rcc2 Bc4 Rcc3 Rc8+
bQ5B/1Pb2N1Q/R1b1rp2/5R1Q/1n1k1r2/3br2Q/b1N1BP1R/n2b1KQ1 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 h4 g5 hxg5 b4 Rh4 Qf6 Rh1 Qa6 b3 Qb5 cxb5 a4 Ba3 axb3 Bb2 Ra4 Bc1 Ra8 a4 Ke7 e4 Ke6 g4 c5 a5 d5 g6 h5 b6 f6 a6 c4 a7 b2 g7 h4 g5 h3 g6 h2 Qc2 b3 Ne2 d4 Na3 b1B Bh6 d3 Qc3 b2 Ng1 Bd6 Nh3 Na6 Nc2 Bb7 Ra5 Ne7 Be2 d2+ Kf1 Rae8 a8R Nc5 R8a6 Ba8 b7 d1B Qb3 Rhf8 g8Q+ Rf7 g7 Nc6 Rb5 Ba2 Qh7 b1B g8Q Bc7 Qg1 Rfe7 Qc3 Nb3 Bg7 Na1 Bh8 Rb8 Qf3 c3 Qfg3 Rbe8 Ng5+ Kd7 Qe3 Nb4 Nf7 Re6 Qeh3 Ke7 Nd4 Bd3 Nc2 Rg8 Rc5 Rg4 Rca5 Rf4 Rc5 Rd6 e6 Rc6 e5 Rd6 Ne3 c2 Rca5 c1R Nc2 Rb1 Rd5 Rb3 Rc5 Ke8 e7 Re6 Rb5 Kd7 Rba5 Bb6 e8Q+ Kc7 Qb8+ Kc6 Ra4 Kc5 R4a5+ Kc4 Rb5 Bc7 Rd5 Rc6 e6 Kc3 e7 Re6 Rf5 Kc4 Ne1 Kd4 e8Q Bb5 Qgg4 Rbe3 Qeg8 Bbc4 Qgh5 Bd3 Nc2+ Kc4 Rg1 h1B Rg2 Kc3 Rh2 Bc6 Qg1 Kc4 Ne1 Kd4 Nc2+
1rNQ1q2/2KQn1q1/B1PN3b/5bR1/p1Nkr2r/P4rBR/2bN2N1/3Qb3 b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Nc6 h4 Nd4 Qd2 Ne6 Qd6 fxg4 Qd1 g3 Bd2 g4 Bc1 Ng5 hxg5 Kf7 Nc3 Ke7 Nb1 Ke8 Kd2 Ke7 Kc3 Ke6 Kc4 h5 Kb5 a5 e4 d5 c4 d4 f4 h4 a3 g2 c6 g3 f5+ Kf7 f6 Ke6 g6 b6 f7 a4 g7 h3 c5 d3 c7 h2 Kc6 d2 Ne2 g1B Nf4+ Ke7 e6 Kf6 e7 Ke5 e8N b5 Ng2 b4 Bc4 b3 Ba6 b2 Nd6 Rh4 Nc4+ Kd4 e5 Re4 e6 Rb8 e7 Bf2 e8N Be1 Ned6 Bf5 c8N Qe7 Rg1 h1R Ra2 Qf6 Kc7 Rhh4 c6 Ne7 g8Q Bh6 f8Q Rb3 Ra1 Rf3 Qg4 Qf7 Qd8 Qf8 Qb3 d1B Bf4 Bc2 Nbd2 b1R Ra2 Bd3 Qd1 Rb8 Rb2 Bc2 Rb3 Bg6 Qgd7 Bf5 Nge3 g2 Bg3 Rf2 Rh1 g1Q Rb5 Rf3 Rh3 Bh7 Rg5 Bf5 Bh2 Qg3 Ng2 Qe5 Bf4 Qeg7 Bg3
k7/1pB2NnQ/1n3QNQ/qb3b2/qQPKn2Q/B1RbnBb1/1P2r3/5R2 b - - 0 1 illegal: No proof kernel
1b5n/Nk3PRQ/Qrr2p2/KN4Nb/RN1B1b2/2Nn3B/3r1P1R/1bbr4 b - - 0 1 illegal: No possible last move
1RrQ2n1/3b2Q1/1n4n1/B5PB/k3p1R1/b2BRbr1/1rnBPK2/Bb4NN b - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bb7 g5 Qd6 h5 Qg6 hxg6 Bc8 b4 Kd7 d4 e5 g7 h5 d6 f5 b6 Kc6 d7 Kb5 d8B a5 b7 c5 d5 a4 d6 a3 d7 f3 Qb3 c4 Qd1 f2+ Kd2 c3+ Ke3 a2 Bd2 h4 Qc1 c2 Bf6 h3 d8B f4+ Kf3 h2 Bfe7 Ka4 b5 Nd7 b8Q Nb6 Bh3 f1B Bf5 Bd7 Kf2 f3 Bf6 Rh3 Bd3 Bg2 Qb2 c1N Bc7 Bd6 Qd8 Rc8 Qc3 Rg3 Qb2 Nh6 g8B Ba3 Bf7 Ng8 Bh5 Bgh3 Qc3 e4 Qb2 Bhe6 Bh8 Bb3 Qg7 Bc2 Nc3+ Kb3 Qdf6 Bb1 Qd8 Kb4 Nd1+ Ka4 Ke1 f2+ Kf1 Rf3 Kg2 f1R Nf2 Nc4 Bca5 Nb6 Bc2+ Rb3 Bd3 Rb2 Kg3 Nb3 Kg2 Nd4 Kg3 Nc6 Kg2 Nc4 b6 Nce7 b7 Nb6 b8R Ng6 Kg3 Bc2 Rc1 Bb1 Rc3 a1N Qh7 Rb5 Bc4 Be8 Re3 Bd7 Bd3 Nc2 Ba1 Rb4 Qg7 Rb2 Ngh3 Re1 Rg1 h1B Rg2 Rd1 Rg1 Bf3 Nh1 Rc1 Kf2 Re1 Rg3 Rg1 Rg4 Rg3 Ng1
nRBrQ3/N2pr1QK/2B1n3/3P1k2/1BN1b1nb/b1b3n1/2r1BRP1/3R2B1 b - - 0 1 legal: proof: h4 e5 a4 b5 b4 g5 hxg5 Be7 axb5 Ba6 b6 Bc8 b7 Kf8 c4 Bd6 f4 exf4 c5 Qf6 b5 Ke8 Rh2 Be7 Rh1 Qb6 cxb6 Bf8 Kf2 Ke7 Kf3 Ke6 Kg4 h5+ Kh4 a5 d4 c5 e4 f5 g6 f3 Kg5 a4 e5 c4 g7 h4 Kg6 f4 Qb3 a3 Qc3 h3 Bb2 h2 Ra2 f2 Nf3 Nh6 g8B+ Nf7 Nbd2 Na6 b8B Rh7 b7 Be7 b6 Nc7 Ba7 Bh4 b8Q Bb7 Ba1 Bd5 b7 Bc6 Qf8 Rd8 b8R Na8 Be2 Bb7 Rd1 f1N Bd3 h1R Qe8+ Be7 Bc5 Ne3 Bb4 Ng4 Be4 Re1 Bc6 Re2 Qb2 c3 Nc4 c2 Qc3 c1B Rad2 Re3 Rf2 Rh3 Kg7 Rg3 Kh7 Kf5 e6 a2 Nfe5 Bh4 e7 f3 Bb2 a1B B2a3 Nfh6 Bgd5 Nf7 Bc5 Re2 Bab4 Rc2 Ba7 Ba3 Qb2 Ba6 Bb7 Rh3 Bc8 Bb7 Nc6 Rh1 Bac5 Re1 Na7 Re6 Bc6 Ng5+ Kh8 Re1 Bb6 Ne6 Kh7 Ba6 d5 Re5 Nd2 Bd3 Nc4 Re3 Qg7 Bc3 Rfd2 Re1 Bg1 Be4 Rf2 Re3 Qeh8 Ree2 e8B Re1 Bh5 Ree2 Rff1 f2 Qe8 Re3 Rfe1 f1N Re2 Ng3 Red2 Nf2 Bf3 Ng4 Rf2 Bd3 Rb6 Re5 Rb7 Be4 Rb8 Nf8+ Kg8 Re7 Kh8 Ne6 Kg8 Nh5 Kh7 Ng3 Be2+
1Q2n1BK/1Qbrq2R/1BkPB1bQ/2nN1Q1R/4Qp2/p2n4/2Pr4/Nb4r1 b - - 0 1 illegal: No proof kernel
5n1R/1B3k2/1KbPnBr1/n1QPp1N1/N7/b1RQb1qQ/p1r5/N1Qr2Q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Kd3 h5 Kc4 c5 d4 a5 g4 a4 f4 h3 b4 h4 g5 h2 b6 h3 Kb5 a3 b7 a2 g6 c4 d6 c3 f6 c2 g7 Rh4 f5 Ra6 f7+ Kd7 f6 Ke6 Qd3 Rf4 Nf3 Qe7 Nbd2 Re4 Ng5+ Kf5 Bg2 Kg6 Nb3 Nc6 b8N Nh6 Nd7 Qe6 Ndc5 Na5 Na4 Nf5 g8Q+ Ng7 Bf4 Be7 f8Q c1B f7 Be3 Rac1 Bb7 Rc3 Qg4 Na1 Qg3 Qc8 Bc6+ Kc5 Kf6 f8Q+ Kg6 Qb3 Rb6 Qbb1 Ra6 Qc1 Rb6 Re1 h1N Re2 h2 Qh3 Nf2 Re1 Ng4 Rh1 Nf6 b5 Nh7 Qfc8 Nf8 Bf3 Rb7 b6 Rc7 b7 Nge6+ Kb6 Bf6 b8Q Bg7 Qc4 Bh6 Qd3 Rg7 Qg1 Kf6 Qbb7 Rg6 Qbc7 Bc1 Bd2 Re2 Qa7 Ba3 Qac7 Bd7 Bb7 Bc6 d5 Rf2 Bf4 Rc2 Be3 Bb5 Qc5 Bc6 Nf7 Kg7 Bg5 Kg8 Bf6 Bhc1 Ng5 Be3 Nf3 Kf7 Qc1 Nc7 Qcg4 Nce6 Ng5+ Ke8 Re1 h1R Re2 Rd1 Rh2 Qf4 Qg1 Qg3 Qhg2 Ng7 Rh8 Ne6 Nh7 Kf7 Q2h2 Qg4 Qh3 Qg3 Ng5+
Q2n3N/KQ2bn1N/RNp4b/2Pr2NB/3QnBr1/1r1N1P2/q2Rbp2/3k4 b - - 0 1 illegal: No proof kernel
1KRR1b2/1nr2p2/4PN1P/1pNQ4/QR2qrnb/1Q1Bkr1R/1B4b1/4n1R1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 g5 Kd4 b5 h4 b3 a4 c6 e4 b2 e6+ Kd6 h6 g4 h5 g3 e5+ Kc7 d6+ Kb6 a5+ Kb7 Kc5 g2 d4 Qd7 e7 Qg4 e8R Qe6 h7 Nh6 a6+ Ka7 d5 Rg8 h8R Bd7 Qb3 Ng4 Nf3 g1N Ne1 Nf3 Nc3 b1R Nd3 Ne1 Bb2 Rc1 h6 Rg6 Rh3 Rf6 Rg8 Rf3 Ra4 Qf5 e6 Qe4 Rg7 Bc8 Rb4 Bb7 Rc8 Rc2 Ne5 Rcf2 Na4 Rf4 Bd3 R2f3 Rc4 Nd7+ Kb4 c5+ Ka5 Qe2 Rb4 c4 Nc5 c3 Rg6 c2 Rg5 Ne3 Rg1 c1B Ng4 Rb8 Nf6 Ng4 Rd8 Qe4 Rc8 Nb6 d7 Na4 d8Q Ba8 d6 Rb7 d7 Rc7 Qe8 Be3 d8R Bf2 Qd7 Bh4 Qdd5 Bc6 Ncd7 Nc5 Nb8 Ka8 a7 Kb7 Na6 Rg3 Qa4 Rgf3 Qdb3 Bd5 Be5 Kc6 Bb2 Nd7 a8Q+ Kd6 Re8 Nc5 Kb6 Nb7 Ka7 Bc6 Nc5 Bd5 Ba3 Ke5 Kb8 Kf5 Red8 Ke5 Bc4 Kd4 Bd3+ Ke3 Bb2 Bc4 Be5 Nd6 Qd5 Nb7 Bc2+ Bd3 Bc3 Bf1 Bd3 Bg2 Bb2
1B3KR1/2b1p2B/2n2Brk/qRn4R/pb3Pn1/1rNbrP2/3Q1Q1B/4N2B b - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 f5 e3 f4 exf4 Bh6 Bd3 Bg7 Bf1 Bf8 Ke2 Kf7 Kd3 Kg6 Ke4 h5 Ke5 a5 d4 c5 b4 c4 d6 c3 b6 c2 d7 h3 Ke6 h2 b7 a4 d5 h4 b5 h3 b6 Nh6 d6 Ra5 Qf3 Ra8 Bb2 c1B Nc3 Bd2 Rb1 Na6 b8B Be1 b7 Rh7 g3 Nb4 Bg2 Nc6 Ba1 Bd2 Rb5 Qc7 Qe2 Qb6 Nf3 Rg7 Ne1 Ng4 Bc7 Kh6 b8B Ba6 d8Q Rg5 Kf7 Rg6 d7 Bg7 Qe3 Bd4 Kf8 Be5 Bd6 Qa7 Qa5 Qc7 d8R Ra7 Qb4 Qa5 Qb2 Rb7 Qc2 Bc1 Qed2 Ba3 Rb2 Rc7 f3 Nf2 g4 Rf6+ Kg8 Rb7 g5+ Kh5 g6 Qb6 g7 Rg6 Ne4 Qa5 Bc5 Ng4 Bg1 Bd3 Qc5 Kh6 Qcf2 Rb5 Nc2 Bc7 Rf8 Re5 Rb5 Bb4 Bd4 Ne3 Nc3 Ng4 Qfe2 Re4 Bf6 Re3 Kf7 Nge5+ Ke8 Nd7 g8B Nc5 Bh7 Re5 Rg8 Re6 Bf2 Re3 Rb1 h1R Kf8 h2 Bg3 Re1 Ra1 Rb1 Qf2 Rb3 Re1 Re6 Re4 Re5 Ne1 Re6 Re5 h1N Qg1 Nf2 Bh1 Ng4 Qgf2 Qa7 Rg5 Qa5 Bh2 Re3 Rh5+
b3bqQ1/2p3N1/2PrRBN1/1n1R1Bn1/1K1B1nB1/3QPB2/1Rp5/1rb1r1k1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Nf6 c4 Ba3 Qa4 Bf8 c5 Ng8 Qc4 dxc4 b4 Kd7 g4 Ke6 d4 Kd5 Kd2 Ke4 Kc3 f5 e6 h5 b6 a5 e3 a4 e7 h4 e8B h3 b5 a3 c6 f4 g6 h2 d5 a2 b7 f3 b6 f2 d6 Be7 d7 Rh3 g5 Rh4 g7 Nf6 g8B Ba3 g6 Be7 g7 Ba3 Be6 Nh7 g8Q Ng5 Bg4 Na6 b8R Bb7 Bfh3 f1R Bb2 Nb4 Nf3 Rh6 Nh4 Nd3 Nf5 Re1 Ng7 Rd6 Beh5 Qf8 d8B Nf4 Bf6 Ra6 Rd8 Ba8 b7 Rb6 b8Q Rb4 Rg1 h1B Qb5 Bf3 Rg2 Bd1 Rd2 Bb3 Rd5 Bd1 Be6 Bg4 Bf5+ Kf3 Re8 Kf2 Nd2 Kg1 Rb1 a1N Re6 Nb3 Bg2 Bf3 Bhg4 Nd4 Qa6 Be4 B2f3 Bd3 Ba1 Bc1 Rb2 Rb6 Qa3 Nb5+ Kb4 c3 Nc4 c2 Ne5 Be4 Qd3 Rb8 Bh3 Rb7 B5g4 Bg6 Bf5 Be8 Ng6 Ra7 Bhg4 Ra2 Rb3 Rb2 Bd4 Rb1 Bac3 Qf6 Rb2 Qf7 Bf6 Qf8 Bcd4
2q1Rrr1/1p1Q2p1/R2Qb3/1B1PKnb1/QPN1Q3/QN4rn/b1R1n3/1B3k2 b - - 0 1 legal: proof: g4 d5 f4 a5 c4 h5 cxd5 e5 fxe5 a4 gxh5 a3 b3 Rh6 Bb2 axb2 Bg2 Rh7 Bf1 Rh8 Kf2 Ke7 Ke3 f5 Kd4 c6 h4 f4 e4 f3 a4 f2 e6 Kf6 a5 Nd7 a6 Bd6 e5+ Kf5 a7 Kf4 h6 Kg3 e7 Ngf6 e8Q Ng8 b4 Ne7 e6 Nc5 h7 Ne4 h5 Qd7 h6 Rg8 h8R Nc5 h7 Bc7 d6 Nf5+ Ke5 Nh6 d4 Nf5 d5 Na4 e7 c5 Ne2+ Kf3 Rh2 c4 Na3 c3 Nc4 Nc5 Ra6 b1B Qa4 c2 Nc1 Ne6 Bd3 f1R Nb3 c1N Rc2 Nf4 Qd8 Nh3 e8B Rb8 a8Q Ba2 Qa3 Qc6 Qd7 Ne2 Bg6 Kf2 Qa4 Rd8 Re8 Rg1 h8Q Kf1 Qh4 Rg3 Qg4 Bb6 Qe4 Be3 Qa7 Bg5 Qae3 Ra8 Qc1+ Kf2 Qca3 Qc5 Qc7 Be6 d7 Kg1 Qd6 Kf1 Bh7 Rdc8 d8Q Qc6 Q8d7 Qc5 Re7 Rf8 Re8 Rd8 Nb2 Qc6 Bb5 Qc8 Nc4 Rg8 Qg4 Nh6 Bd3 Nf5 Qe4 Rf8 Rc3 Rg8 Bb1 Rf8 Rc2 Rg8 Re7 Rdf8 Re8
b1nB3N/P2b2rB/n1r1B3/BRbP1pkr/1N5n/4qR1Q/6p1/K1BQ3Q b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Ke7 Kd2 c5 Kc2 g5 Kb2 f5 a4 b5 e4 b3 h4 c4 d6+ Ke6 d7 b4 a5 g4 a6 g3 a7 g2 h6 Bd6 h5 Qh4 d8B Qg5 h7 Kf7 h6 Kg6 e6 Qg3 e7 Qg5 e5 Bc7 e6 Bb6 Ra3 c3+ Ka1 c2 Nf3 Bc5 Nc3 Qh4 Na2 Qe4 Ne5+ Kf6 e8Q+ Ne7 Nf7 Qe3 Bc4 Na6 Re1 Rg8 h8Q+ Rg7 h7 Bd7 Ra5 Kg6 Rf1 Nc8 e7 Rb8 Rf3 Ra8 Nd6+ Kg5 Be6 Rb8 Qeg8 Rb6 Rb5 Rc6 Bb2 c1N Bc3 Ne2 e8B+ Ne7 Bb2 Nf4 Bc1 Ng6 B8f7 Nh4 Bg6 Rf7 Ba5 Rg7 Qb8 Nc8 Nf7+ Kf6 Qh2 b2+ Kb1 Qe2 Qhh1 Qe3 Kc2 b1B+ Kb2 b3 Ka1 Be4 Nb4 Rb6 Qh3 Ba8 d5 Rd6 Qg8 Rc6 Nh8 Kg5 Qf8 Nc7 Qd6 Na6 Qdh2 Ne7 Qhh1 b2+ Ka2 b1R Bd8 Rb3 Ka1 Rd3 Nf7+ Kf6 h8B Rc3 Ba5 Nc8 Bh7 Rc4 Ne5 Kg5 Ng6 Rf7 Be5 Rg7 Nh8 Rg4 Bec7 Re4 Beg8 Ree6 Bf7 Rh6 Be6 Rh5 Bd8+
n1qNk1RN/2Qrr1BK/1Nb2r2/BB6/1R3p2/1n4b1/2PpbNPQ/1N3q2 b - - 0 1 illegal: No possible last move, all moves rejected
2B3b1/5NR1/r1b1QR1N/b4r1P/qpN1q2n/n4R1p/kR3P1K/B1R1r2Q b - - 0 1 illegal: No proof kernel
qN4K1/2nnNQ2/1B2B1b1/4pn2/2qQ1RNN/bNkp1P2/1R1rP3/1brB4 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 f5 gxf5 c5 hxg5 cxd4 a4 Kf7 axb5 Ke8 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 a5 c4 h4 b4 h3 b6 d6 g6+ Kf6 c5 h2 c6 d3 c7 d2 b7 a4 g7 a3 b5 a2 b6 Nd7 b8N Ra7 b7 Ra3 Nf3 Rh5 Bh3 Rh4 Rf1 Nh6 g8B Rc4 Nh4 Ra6 Bb2 Rc1 Bd4 Qe8 Be6 Qf7 Bb6 h1B+ Bg2 Kg5 f6 Kf4 Be4 Nf5 Qa4 d1N Qd4 Bf3 Nd2 Bh5 Rb1 a1Q Rb2 Bg6 Nb3 Qg8 f7 Ra2 f3 Be7 f8Q Qf7 Rg1 Nc3+ Kc4 Nb5+ Kd5 Qg8 Qf7 Bf8 Qc5 Be7 Bc2 Bf8 Rd1 Be7 Rd4+ Ke3 Bd1 Bf8 Rb1 Rd2 Rb2 Qa8 Qc4 Kf2 Qd3 Ke1 Rf4 Be7 Qd4 Bf8 Nc6 Be7 b8N Bb7 c8N Nc7+ Ke4 Bf8 Ne7 Ba6 Na5 Bc4 Nd5 Ba2 Nf6 Bb1+ Qd3 Be7 Ng4 Qc8 Nb3 Qca6 Bc2 Qc4+ Qd4 Ng7+ Ke3 d5 Bd1 Ba3 Qc3 Bgc2 Qd3 d4+ Ke4 Nh5 Kf5 Ng7+ Kg6 Nf5 Qc3 Be4 Kh7 d3 Ba7 Nh6+ Kh8 Bg6 Qd4 Nf5 Ne7 Rdc2 Na5 Kd2 Bb6 Qa4 Qf2 Kc3 Nb3 Rd2 Kg8 Qc4 Qd4+
B3r1Rr/kb3QQB/3Q1Q2/1N2p1K1/5P2/1nnQp1BR/N1q1b2P/b4q1n b - - 0 1 legal: proof: e4 b5 d4 f5 g4 fxe4 a4 c5 dxc5 h5 axb5 Rh6 gxh5 Rh8 Kd2 a5 Ke3 d5 Kf4 Kd7 b4 Kc7 c4 Kb7 c6+ Ka7 c7 g6 h6 a4 h7 a3 c5 e6 c6 d4 Bg2 a2 b6+ Ka6 b7 d3 b5+ Ka7 b6+ Ka6 Na3 d2 Ne2 e3 Nc3 Qd5 Rg1 Qe4+ Kg5 Nh6 Nab5 Nd7 b8Q Nf6 b7 Bg7 f4 Re8 h8Q Nhg4 Qf3 d1B Bd2 Nd5 Be1 Bd4 Qg7 Be2 Bg3 Nf2 Rae1 a1N Na2 Kb6 Rd1 Qc2 Rd3 Nh1 Qe4 Bd7 c8Q Nc3 c7 Nb3 Qd8 Bc6 Qdf6 Rh8 Qbf8 Re8 b8Q+ Bb7 c8B Ka6 Q6f7 e5 Bf5 Kb6 Rdd1 Ka6 Rdf1 Kb6 Rf3 Ka6 Kg4 g5 Bh7 Kb6 Kf5 g4 Qd3 Ka6 Kg5 Kb6 Bf2 Ka6 Rh3 g3 Bc6 g2 Bg3 Kb6 Qbd6 Ka6 Rc1 g1Q Qgf6 Qg2 Rg1 Qf1 Q8g7 Kb6 Nc7 Ka7 Bd5 Ba6 Ba8 Bb7 Rg2 Na4 Rg1 Ba1 Rg2 Nc3 Rg1 Bc6 Nb5+ Ka6 Bf2 Bd1 Qgg6 Ne4+ Kf5 Nc3 Rg4 Kb6 Bg3 Be2 Qh6 Ka6 Rg8 Kb6 Kg5 Ka6 Nc7+ Ka7 Qhg7 Bb7 Nb5+
4NqB1/R2NR3/K3N3/NnP1p1r1/1Q3bBq/1P1k2r1/qp2n1n1/B1Q2bN1 b - - 0 1 illegal: No proof kernel
Nb2Q3/3q2Rb/rQ3B2/1qp1N2n/R5R1/qRPp2B1/2NbkP1R/r1n3K1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 Na6 gxf5 Nb8 Bh3 Ba6 Bg4 hxg4 Ra5 Bb7 Ra1 Bc8 Kf1 Ke7 h4 d5 b4 a5 e4 c5 c3 g5 b6 a4 e6 Kd6 e5+ Kc6 f6 Kb5 b7 Kc4 b5 g3 h5 a3 b6 a2 h6 g4 h7 d4 e7 Bf5 e8N Nc6 b8R Qd5 e6 Ne5 b7 Ra6 e7 Qd7 f7 Nd3 Nf3 g2+ Kg1 Nf6 Bg5 Nh5 Rh4 Nc1 Nc7 Bh6 Bf6 Bd2 e8Q Kd3 f8R Be4 Qc2+ Ke2 Rg8 d3 Rg7 Rf8 h8R Rg8 Ne5 Bh7 Kh2 g1B+ Kh1 g3 Qb3 Qb5 Rhg4 Bh2 Na3 Qd7 Nc2 Qb5 Rb1 a1Q Ra8 Qa3 b8B Qd7 Qb6 Rf8 Bd8 Rf4 Bf6 Rfa4 Rb3 Qb5 Kg2 R4a5 Kh3 g2 Ra7 g1Q Na8 Qd1 Kg2 Bg3 Nb4 Qc2 Kg1 Qca2 Nc2 Qaa4 Rad7 Q2a3 Rdd4 Qd7 Bd6 Qab5 Bc7 Qb2 Rc4 Ra1 Ra4 Qa3 Bb8 Bf5 Rh6 Bh7 Bd6 Nf4 Rh1 Nh5 Rh2 Qf7 Nc4+ Qe6 Bf8 Bc7 Bd6 Bb8 Bg3 Qe7 Ne5 Qf7 Qbd8 Qfd7 Qb6
n1N3q1/B1R3B1/3Rr2B/1BpqBPQp/N1Nbn1bP/k1r4n/4Q3/1K4b1 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 f5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 fxg4 Kd2 Kd7 Kc2 c5 h4 h5 f4 a5 e4 g5 b4 a4 b6 g3 f5 g2 b5 a3 b7 g4 e6+ Kd6 e5+ Kc7 e7 Kb6 e8Q Ka5 e6 Ka4 e7 g3 d6 a2 d7 Ra5 b6 Nc6 b8B Na7 b7 Rh6 Nd2 Rc6 Nc4 Nf6 Qd2 Ne4 Ne2 g1B Qg5 g2 Be5 Bg7 b8B Nb5 Ba7 Re6 Nc3+ Kb4 Bd2 Ra3 Na4+ Rc3+ Kb2 Bb7 Rh2 Qb6 d8B Qc6 Bdc7 Bh8 Bg7 Qd5 Bce5 Nc7 Rh3 Na8 Rd3 Be3 Rd1 g1N Bc1 Nh3 Re1 Qc6 Rd6 Qd5 Rd1 Bc6 Rd7 Bg1 Rc7 Rb3+ Kc2 a1Q Rd3 Qa3 Bd2+ Rc3+ Kb1 Kb3 Be3 Bb7 Qb5+ Qb4 e8N Bc6 Qa6 Qb8 Ned6 Qg8 Nc8 Bb5 Qd8 Bc6 Beh6 Kb4 Qg5 Bb5 Na5 Ka3 Rd1 Bc4 Rd4 Bb3 Bb5 Bd1 Rd3 Qb7 Rd6 Qd5 Bf8 Bf6 Bfg7 Bg4 Nc4+ Kb3 Bf4 Bfd4 Bfe5 Kb4 Nab6 Kb3 Qa2+ Kb4 Qe2 Kb3 Na4 Kb4 Nd2 Ka3 Nc4+
5b2/2n2QNK/1b1q3R/Pr3RBp/3knQ2/1Qr2Bnb/P1Q1Np2/q4Q1B b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 b4 Bg7 bxa5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 g4 b5 d4+ Kc4 d6 c5 g6 h6 d7 b4 Kf5 b3 e4+ Kb4 d5 c4 g7 Kc5 e5 c3 e6 f6 Kg6 f3 d6 f5 e7 f4 e8Q c2 g5 f2 Be2 f1N Nh3 b2 Nc3 b1Q Bf3 Ba6 Ne2 Qdb6 d8Q Qb7 d7 Q7b6+ Qf6 Q6b4 d8Q Ng3 Q8d3 Bc8 Qf1 Na6 Qef7 Nc7 Bd2 c1B Qc2+ Qc3 Rh2 Qb6 Rb1 Qe6 Rb5+ Kc4 Rf5 Rb8 Bh1 f3 Nhf4 f2 Nh5 Rb5 Bf3 Qd5 Qd6 Nf6 g8Q Bb2 Ng7 Nfe4 Qf4 Bba3 Rh1 Bfc5 Rh5 Bb6 Rh2 Be6 Qb8 Rc8 Kh7 Bf8 g6 Qd6 Qb7 Kb4 Be3 Qa1 Qd5 Rc5 Rh3 Kb5 Qdb3+ Kc6 Rh4 Rb8 Bc1 Rc3 Bh1 Bd5 Rhh5 Kc5 Qf3 Ba7 Ne8 Rb5 g7 Bb6 Bg5 Nd2 Rh4 Qe5 Qf4 Bg2 g8B Qd5 Ng7 Bh3 Qe8 Qe5 Bgd5 Qe6 Rf6 Qd6 Bdf3 Nde4 Qef7 Bg2 Q4c1 Bh3 Rhf4 h5 R4f5+ Qe5 Qf4 Qd5 Nc1 Kd4 Rh6 Qd6 Ne2+
1Q2qN1r/1K1BNnn1/2N1b3/P1bP1p1r/4R2B/1BNQ2pq/7k/3nrNR1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 g5 Ke4 c5 d4 b5 a4 f6 h4 b3 h6 b4 h5 b2 h7 g4 e6+ Kd6 h6 g3 e7 c4 e8Q c3 a5 c2 Ra4 b3 Qd3 Qb6 Nd2 Kc7 d6+ Kb7 Kd5 b1R e4 f5 d7 Kc7 d8N b2 e5 Nd7 e6 Qb8 e7 Nc5 Ne2 Ne6 Nc3 Ng7 Nc6 Be6+ Kc5 Ra1 d5 b1N Re4 Ra6 Ba3 c1Q Rg1 Qd8 Be2 Qf1 Bd1 Qh3 Nf1 Qd7 Qa8 Qe8 Bb3 Ra7 Bb2 Kd7 Kb6 Kd6 Qb8+ Rc7 Ne2 Nc3 Bc1 Rb1 Bg5 Re1 Bh4 Nd1 Ka6 Kc5 Nc3 Rb7 Bc2 Rb2 Bb3 Rh2 Ka7 Nf6 Kb7 Ng4 Ne2 Ne5 Nc3 Rg8 h8N Nf7 Ng6 Rh8 h7 Qg2 Bf6 Rh5 Bh4 Qh3 Qc8 Qd8 e8B Kd6 Bd7 Qe8 Nge7 Kc5 Ra4 Kd6 Nb4 Ke5 Qd8 Kf4 Qb8+ Kg4 Nbc6+ Re4 Qd4 Kf3 Qd3+ Re3 Re4 Kf2 Ng8 Bc5 Nge7 Re1 Na2 Rf8 h8N Rg8 Nhg6 Rgh8 Rh1 Kg2 Nc3 Ba3 Nf8 Bd6 Nd2 Bc5 Rg1+ Kh2 Nf1+
1qnkQ3/3B4/Bb2BBrR/pK4P1/rN1p1B1P/1b1n3n/R2Q2q1/1QN3r1 b - - 0 1 illegal: No possible last move
1b1KB2q/kQ2rN1B/4N1Rn/p1Bp4/b2b1R2/1P1r4/1Bn3Pq/2QR1rB1 b - - 0 1 illegal: No possible last move
B2NR1qQ/K4b1r/3n2P1/4b1p1/B2kBn1q/pr2BqR1/PN1bB3/3NQ3 b - - 0 1 illegal: No possible last move, all moves rejected
1Q4n1/1K3BB1/nB2r1pR/4r1RP/b1p4Q/BkPb1N1n/1Nq1N2q/2Br4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 e4 e5 a4 Bd6 axb5 dxe4 Qe2 e3 Qg4 e4 Qd1 Be5 fxe5 Rh7 Ra2 Rh6 Ra1 Rh8 Ke2 Ke7 d4 Ke6 b4 Kd5 h4 Kc4 c3 c5 d5 f5 h6 a5 h7 a4 b6 f4 d6 g6 e6 a3 b5 a2 e7 Nh6 e8N Qg5 d7 Qd8 b7 Qe7 d8B Qc7 b6 Bd7 Qe1 Ng8 Nd6+ Kb3 Nc4 Na6 b8B Ba4 Nb2 c4 b7 Qe5 Bg2 Qd6 Bb6 f3+ Kf1 e2+ Kf2 Qd2 Bd6 Qc2 Ke3 f2 Kd4 f1B Kd5 e3 Ba3 Re8 b8Q Re6 Qf2 e1N Ne2 Re5+ Kd6 Nd3 Bd5 Nf4 Bf7 Nh3 Qf4 Nc5 Kc7 Na6+ Kb7 Re6 Rg1 Re5 Rg5 Re6 Ng3 e2 h5 e1Q Qh4 Qh2 Ne2 Qd1 Nd2+ Kc2 Ng3 Bd3 Nf3 Kb3 Ne2 Qc2 Rb1 Nf6 Ra1 Rhe8 h8B Ng8 Bg7 Re5 Bce3 R5e6 Re1 a1R Bc1 Re5 Rd1 R8e6 Rd2 Bf5 Rd8 Bd3 Rc8 Nh6 Rh8 Ng8 Rh6 Rb1 Bce3 Rd1 Bc1
R2B1BB1/1Bb5/2K1N1p1/P7/nbRBknp1/3rPQrq/b2QN2r/1q2N3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 Kf2 Ke7 Ke3 b5 Ke4 c5 d4 c4 a4 g6 h4 f6 e3 c3 a6 c2 d6+ Ke6 d7 b4 h5 b3 d5+ Ke7 h6 b2 e6 Kd6 e7 Bb7 e8Q Ne7 a7 Na6 Nc3 b1Q h7 f5+ Kd4 f4 Ba3+ Nc5 Qd2 c1B Qf7 f3 Nce2 f2 Nf3 Qa5 Ne1 Rd8 a8B Bb2+ Kc4 Ke5 d6 Qa7 Kb5 Nd5 Qf3 Nf4 a5 Bc8 Bb7 Na4 Kc6 Qd4 Bg2 f1R Ra2 Bc3 Rc2 Bb4 Rc4 Rg1 Bf1 Rg3 Bg2 Re8 d8N Be6 d7 Bfd6 Rf1 Bg8 Ne6 Bc7 d8B Kf5 Rf2 Qg7 Bf1 Qh6 Rh2 Qh3 Rh1 Bc3 Bf8 Bb4 Bg2 Re7 Rf1 Rd7 Rh1 Bf7 Rh2 Rg8 h8B Rd3 Bd4 Rh8 Bf1 Qg2 Rh7 Bg8 Re7 Rh2 Re8 Bf7 Bh4 Qh3 Ra8 Bg8 Bd8 Bf7 Nc3 Bg8 Be2 Bf7 Bd1 Bg8 Bb3 Bf7 Ne2 Bg8 Qf2 Ke4 Nc5+ Kf5 Rc3 Bc4 Qf3 Ba6 Bf7 Bc4 Bg8 Bb3 Ne6 Ba2 Qf2 Ke4 Rc4 Nb2 Qf1 Na4 Qf3+
q1q1N2n/Nr2Q1RN/1n3P2/3p4/2R1b3/3Q1Pk1/QK1bQ1p1/BB1Qn1rq b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 Kf6 b4 Ke5 c4 Kf4 Kc2+ Ke4 f3+ Ke5 f6 d5 h6 a5 c5 g5 h5 g4 c6 g3 h7 a4 h6 e6 b6 a3 c7 g2 b5 a2 b7 d3+ Kb2 d2 b6 Kf4 Rh4+ Kg3 Nh3 e5 Bd3 e4 Na3 e3 Nb5 e2 Bb1 e1Q Ng5 Qd7 Nd6 Qf2 Rc4 Qg1 Ne8 Ne7 Qe2 Rg8 h8Q d1Q h7 Qh1 Qg7 Ng6 h8Q Q1a4 Qhh7 Bb4 Qge7 Nh8 Qhd3 Bd2 Nh7 Rg7 Qd1 Qf5 Q3e2 Be6 c8N Nd7 Na7 Bf7 Qd3 Bg6 Q3e2 Rc8 b8Q+ Rc7 b7 Nb6 Qd3 Qc8 Qa8 Be4 b8Q Qaa6 Qbb7 Qa5 Qa6 Rc6 Qd8 Rb7 Qe7 Rc5 Rb4 Rc3 Rc4 Qa4 Q3e2 Re3 Qd3 Re1 Q3e2 Qac6 Qaa3 Rg1 Qad3 Ba5 Be3 Bd2 Bd4 Qa4 Bc2 Qa6 Rc1 a1N Bb1 Nc2 Rc7 Ne1 R1c4 Qh6 Nb5 Nd7 Kb3 Bb4 Qg7+ Kh4 Ba1 Nb6 Kb2 Bd2 Qf8 Kg3 Rg7+ Bg6 Qfe7 Qh1 Rh4 Qa7 Rc4 Qab8 Qa2 Qa8 Ng5 Bh7 Na7 Be4 Nh7+
Q3N2B/2N5/1kB2p1B/3Qr3/p2q1bKb/1B1R1P2/1Pr2r2/nBRb1qRn b - - 0 1 legal: proof: d4 b5 g4 h5 a4 hxg4 axb5 e5 dxe5 c6 bxc6 Qg5 Bf4 Qf6 Bc1 Qd8 c4 g5 e4 d5 Ke2 a5 h4 a4 c5 d4 h5 f6 c7 Kd7 e6+ Kc6 h6 g3 Kf3 d3 e7 d2 e8Q+ Nd7 h7 g2 e5 Bg7 e6 Ra7 e7 Ra5 Bc4 Nh6 Ne2 g1B Nf4 Nf5 Nd5 Bh6 Na3 Ng3 Rh3 Nh1 Kg4 Rg8 Qf3 d1R h8B Rd2 Bb3 Rc2 Nc4 Ba6 Nd6 Be2 c8B Bd1 Qh5 Bh2 e8B Bg3 Ba6 Bh4 Bd3 Rg7 Bh7 Re7 Bd2 Re2 Qe4 Qb6 Rd3 Qa6 f3 Rf2 Qf7 Qc4 Qg8 Qc3 Qc4 Qd4+ Be4 Rb5 Bg6 Ra5 Ne8 Kb7 c6+ Ka7 c7 Nc5 Kf5 g4 c8R g3 Ndc7 g2 Bc6 g1Q Qcd5 Kb6 Bf4 Qf1 Kg4 B6g5 Be4 Bh6 Bd2 Bf4 Rc1 Be5 Bh6 Bd6 Rd8 Bf4 Rd7 Rb5 Rg7 Ra5 Kh5 Rb5 Rg1 Ra5 Kg4 Rb5 Bc4 Nb3 Bg6 Na1 Bb3 Rbc5 Rd2 R5c3 Ng7 Re3 Qa8 Rcc3 Bb1 Re5 Rd3 Rcc2 Nge8
5q2/1KnBqN1r/R1QQP1n1/2r1b2n/2QQ3B/k2BP2q/2p4p/Nb4QR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Ke7 Ke3 h5 Kd4 f5 Kc5 a5 d4 h3 g4 c6 b4 h4 g5 f4 b6 f3 b5 h2 g6 f2 e6 a4 b7 h3 g7 a3 b6 a2 d6+ Kf6 d5 Ke5 Nf3+ Ke4 Nbd2+ Ke3 Nb3+ Ke4 Bg5 Ne7 g8B Bg7 d7 Be5 Bh4 Qf8 d8Q Ng6+ Qd6 Rh7 Rb1 a1Q Ng5+ Ke3 Nf7 Qa7 Na1 Na6+ Kc4 c5 Kb5 c4 Kc6 c3 b8Q c2 b7 Nc7 Rb6 Ke4 Qc1 Kd4 e3+ Kc3 Bb5 f1N Qd1 Ng3 Qg1 Kb2 Qc5 Ne8 d6 Nh5 d7 Nc7 d8Q Qa3 Qf6 Ra5 Qc4 Qae7 Qa8 Ka3 b8Q Ba6 Ba4 Rd5 Qg7 Bb5+ Kb7 Rc5 Qh8 Bb2 Qd8 Be5 Qd6 Ba6+ Ka7 Bb7 Bd7 Bf3 Qac6 Bd5 Q4b5 Ba2 Qc4 Bb1 Kb7 Bf4 Qhd4 Be5 Qg5 Nh8 Rc1 h1Q Qg1 Ng6 Rf1 Rh6 Bh7 h2 Re1 Qf3 Rc1 Qh3 Rf1 Ngf4 Bd3 Rh8 Qg3 Rh6 Rh1 Rh7 Qg1 Ng6 Ra6+
3N1RN1/1b2r2R/2nP2nQ/RpPq1B2/k2q3b/1r1p1r2/qR3B1K/4RQQ1 b - - 0 1 illegal: No possible last move, all moves rejected
2NBrn2/3bQ3/QQnpRQ2/1K2p3/Rb3P1R/1q2q2k/1PB5/1q1Q1Nrb b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 e5 h4 g5 h6 a5 h7 d3 h5 d2 b6 a4 h6 a3 b7 d6 Nc3 g4 Nge2 Kg5 f6 a2 f7 g3 Kb5 Kg4 Na4 g2 c4 g1Q c5 Nf6 c6 Bf5 c7 Na6 b8Q Nb4 c8Q Qh2 Nb6 Ne8 Qa6 Qh3 Nc8 Qe3 Qbb6 Rg8 h8Q Nc6 h7 Bd7 Qf6 Bh6 h8R Ng7 f8Q Ne6 Q8e7 Nf8 Bg2 Qe8 Rg1 Qf7 Be4+ Kh3 Bc2 Qe6 Rg4 Q6b3+ Rb4 Rg1 Ng3 Rb8 Nf1 Ra8 Rg8 Bf4 f3 Bg3 Rg6 Be1 Na7 Re8 Nc8 Qa3 Ra4 Qac3 Rb1 a1Q Rag4 Qa2 Ra1 Qb1 Raa4 Qa3 Qf4 Qaa2 Re6 Qaa3 Qff6 Qac3 Qe2 d1B f4 Qa3 Bd2 Qab3+ Bb4 Bc3 Qe1 Bf3 Qd1 Q3a2 Ba5 Bb4 Qbb7 Bg2 Bd8 Bh1 Qbb6 Qab3 Rh4+
bq1r2R1/1n3NN1/R1PP3K/5Q1B/1rQkq2Q/n1p1r2N/N4BNp/bb6 b - - 0 1 illegal: No proof kernel
n1NnK3/B1k2r1B/qpnP1Q2/4Q2R/1B3b1B/P6p/q1B3Nq/r2b2RN b - - 0 1 illegal: No possible last move, all moves rejected
1N2b1B1/r3R3/QpqpBnQR/3r4/1BNq1n1K/q1P1P3/1kB5/2b1BR1b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 Ke6 a4 g5 h4 f5 c6 d6 c7 b6 a5 g4 h6 b3 e3 b2 h7 Qe8 a6 Qd7 h5 f4+ Kh4 g3 a7 g2 h6 f3 Ne2 g1Q Nd4+ Kd5 e6 f2 e7 Qg6 e8R Ne7 Bc4+ Ke4 Qf1 Bg7 Na3 b1Q Nc6 Qb2 Bd2 Qd4 Be1 Bb7 c8B Rg8 Be6 Nd5 h8B Nf4 Qa6 f1B h7 Bb5 Nc4 Qg1 Bb4 Qc1 Re7 Qa3 Raf1 Be5 Bf7 Rg5 Bg8 Qe8 Bf6 Nd7 h8Q Rf5 Bg7 Nf6 Nb8 Qc6 Qh6 Rg5 Qg6+ Rf5 Bh7 Kd5 Be1 Kc5 Be6 Rg5 Bg3 Kb4 Bhg8 Kc3 Bh8 Qcc5 Bg7 Be8 Rh2 Bh1 Be1+ Qd2 Bh8 Qc6 Rh3 Kb4 Rh2 Bb2 c3+ Kb3 Bg7 Nh7 Bd4 Rd5 Bc5 Bc1 Bb4 Nf6 Kg3 Qa1 Rh6 Qd4 Kh4 Qa3 Nd7 Rd8 Nb8 Rd7 a8B Ra7 Bb7 Ka2 Bbc8 Ka1 Bf5 Ka2 Bce6 Ka1 Bc2 Ka2 Na5 Kb2 Nc4+
3N1Q1b/rN2Q3/P2Q1pkq/1BP2nb1/2b1rR2/3pB1Qn/1q1N1RQK/7n b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 d5 Kg2 g5 a4 b5 h4 f6 e4 Kf7 c4 d4 e6+ Kg7 c6 g4 c5 b3 h6+ Kg6 h5+ Kh7 c7 g3 e5 b4 e7 b2 e8Q b3 e6 Qd6 e7 Na6 a5 Bg7 Nd2 b1N Qf8 b2 e8Q Ra7 Ra4 Nc3 Nh3 b1Q Nf4 Nd5 Qee7 Be6 c8N Nab4 a6 Qb2 Bb5 Nd3 Rh2 Nf2 Rb4 Qc7 Nd6 Nh1 Nb7 d3 Qe2 Bf7 Ne6 Qf4 Ned8 Qg5 Kh3 g2 Rf4 g1B Qg2 Be3 Qg3 Qg6 Rhf2 Qg5 Qd6 Nge7 Kh2 Nf5 Qfe7 Re8 Qg2 Bh8 Qg3 Kg8 h7+ Kg7 h6+ Kg6 Qg2 Nc3 Qg3 Bc4 Qg2 Ne2 Qg3 Bg7 h8Q Ng1 h7 Nh3 Qhf8 Bh8 Qg8+ Kh5 Qgd5 Qg6 Qdg2 Qh6 Rd4 Bg5 Rdf4 Bg7 h8Q Kg6 Qhf8 Bh8 Qec7 Re4 Qce7 Qh5 Nb3 Qh4 Be3 Qh6 Nd2
k1qB1QB1/1bN3B1/p1q2r2/2Qnn2p/2Q1N1Pb/1n6/KP3Br1/1BR1q1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 f5 Kd2 h5 Kc3 c5 Kb3 Kc7 g4 Kb7 b6 c4+ Ka2 c3 d6 a6 g6 f3 e5 f4 g7 f2 d7 f3 d5 c2 e6 Qe7 d8Q Qe8 d6 Qc6 e7 Qc3 e8Q Bd7 Qe6 Rh6 Na3 Qc8 Qd4 Nc6 Nb5 Ne5 Be3 c1Q Nh3 Bc6 d7 Be7 Rg1 Bh4 Bd3 f1N Nc7 f2 Ng5 Nd2 Qc5 f1Q Bf2 Qfe1 Qdf8 Ne7 g8B Nd5 d8B Nb3 Bb1 Rf6 Ne4 Kb8 b7 Qcc3 Be3 Rf2 Bh6 Rg2 Bg7 Qc2 Qa5 Ka7 b8B+ Kb7 Qac5 Ra7 Ne8 Ka8 Qef7 Rc7 Ba7 Bb7 Bb6 Rc6 Nc7+ Kb8 Qf1 Rf6 Qfc4 Qcc1 Q5b4 Qh6 Bf2 Qg6 Qbc5 Qe8 Bc2 Qb5 Rc1 Qc6 Ne6 Ka8 Bd3 Kb8 Bb1 Ka8 Nc7+
Qb3R2/2N1qN1b/pK3kq1/NP2RBN1/6Q1/Bnn2r2/1P3p2/Nnqr2Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 d4 f5 e4 c5 h4 g5 h6 g4 h7 f3 Ke3 f2 d6+ Ke6 d7 a6 e5 c4 d5+ Kf7 Kd4 c3 e6+ Kg7 h5 g3 d6 c2 Kc5 g2 h6+ Kf6 e7 f4 e8N+ Kf5 Bd3+ Ke5 Bf5 f1Q Na3 f3 Nc7 f2 Qg4 Ra7 Nh3 g1N Kb6 Qe7 d8N Qd3 d7 Nf3 Ng5 Nc6 Ndf7+ Kf6 d8N Na5 Nb7 Nb3 Bf4 c1Q Bd6 Nfd2 Na5 Nb1 Nc2 Bb7 Rh3 Be4 Ba3 Ra8 Rf3 Rd8 Rf4 Qg3 Rf3 Rd1 Rf4 Qe8 Rf3 Ne7 Rf4 Rg8 h8Q+ Rg7 h7 Nd5+ Ka7 Qg2 Qg8 Bd6 h8Q Ndc3 Kb6 Qe7 Qh2 Rh7 Qa8 Rh3 Qg1 Bd3 Ra2 Re3 Na1 Rf3 Re4 Bc2 Re5 Bd3 Bb4 Bc2 Ra4 Be4 Ba3 Bc2 Nce6 Bb8 Nc7 Bd3 Rd4 Be4 Rd8 Qg3 Bd7 Bh7 Bf5 Qg2 Rf8 Qg3 Qb4 Qg4 Qc4 Qh5 Qf4 Qg6 Qfg4
1QnQ1r2/R2nRnQ1/p1N1R2B/1P3Q2/Q1K5/bB2P3/p1bk1r2/1q1Nq1r1 b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Nh6 fxe5 Ng8 a4 bxa4 d4 Ke7 Kd2 c5 Kd3 g5 b4 f5 h4 f4 h6 a3 b5 a2 d6+ Ke6 d5+ Kf5 h7 g4 h5 f3 d7 g3 h6 f2 d6 g2 e6 Qf6 d8Q Ke5 e7 Qh4 e8R+ Ne7 Nc3 Nd7 Qa4 a6 Nf3+ Kf5 Ne5 g1R Nd1 c4+ Kc3 Ke4 Nc6 Rhg8 h8Q R8g2 h7 Rh2 Kb4 c3 Qg7 c2 Bh6 c1N h8Q Nd3+ Kc4 Rb8 Bh3 f1Q Be6 Qhe1 Qhh7+ Qf5 e3 Rf2 Rc1 Bb7 Rc3 Nc8 Re7 Kf3 Rh4 Ke2 Re4 Kd2 Bf7 Ba8 R4e6 Bb7 Qc7 Ra8 Qb8 N3e5+ Kd4 Qc2 Qf5 Qb1 Bg8 Nf7 Rc5 Na7 Kc4 Nc8 Rce5 Nf6 Rc7 Be7 d7 Ba3 d8Q+ Nd7 Na7 Be4 Nc6 Bc2 Ra7 Rh2 Re7 Rf2 R5e6 Qf1+ Kd4 Nc5 Qd7 Ncd6 Rf6 Ne5 Qbe8 Qe1 Bb3 Nef7 Rfe6 Rb8 Qb7 Nd7 Qb6 Rd8 Qb8 Nc8 Kd5 Nde5+ Qd7 Rf8 Qd8 Nd7 Kc4
5B2/2bQK1NN/pn1Q2r1/PR1q2N1/4n2q/2QQn1P1/pQq2RB1/2k1r2b b - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 exf5 g5 hxg5 d4 a5 d3 cxd3 Nf6 d4 Ng8 Qa4 bxa4 d5 Ba6 Rh4 Bb7 Rh1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 f4 Kb3 d4 Kc2 b4 h5 g6 c5 f6 a3 f7 e6 g7 h4 g3 a6 b5 c4 f5 h3 d6 c3 f6 a2 d5 h2 d7 Nh6 g8Q Bc5 f8N Be3 Kd6 e5 f7 e4 b6 Rh7 b7 Bd2 Ba3 e3 Ne6 e2 f8Q e1N Qh8 Qh4 d8Q Ng2 Nf3 Nd7 b8Q Be3 Nbd2 Ng4 Ne4 Rf7 Rb1 Nf2 Nf6 Re7 Nh7 Bb6 Nfg5 Bb7 Qf3 Rg7 Rb5 Rg6 Rg1 h1Q Bc5 Ne1 Rg2 Ra7 Rh2 Ng2 Qde8 Kd2 Qg7 c2 Qb2 Ba8 Qfc3+ Kd1 Qf7 c1Q Qf5 Qd2 Qfd3 Bd8 Qc7 Nb6 Q7g7 Rf7 Qgf6 Re7 Ng7 Re1 Bb4 Ne3 Bh3 Nfg4 Rf2 Bc6 Ke6 Bc7 d6 Qf3 d7 Be4 d8Q Qe2 Qd3d4 Bh1 Bg2 Qed3 Kf7 Q2c2 Q8d7 Qdd2 Qfe5 Nf6 Bf8 Ne4 Ke7 Qdd3 Qdc4 Qdd2 Qed6 Qd5 Qbb3 Kc1 Q4d3 Rh6 Qbb4 Rg6 Qbb2#
rbRn2b1/nB3Nkp/1BBQ2r1/1N4r1/1P3N1N/pN6/P1q2RQ1/5qnK b - - 0 1 legal: proof: e4 b5 c4 g5 h4 c5 hxg5 f5 exf5 bxc4 d4 Bh6 dxc5 Bf8 g4 Kf7 f4 e5 Kf2 d5 Kg2 a5 b4 a4 c6 d4 g6+ Kg7 c7 c3 g5 d3 Ne2 d2 Na3 e4 Rh2 c2 Nb5 a3 Ned4 e3 Kh1 e2 Rf2 e1N Bg2 Nf3 Nb3 Ba6 c8B Qd6 Bb7 Nh2 Bgc6 Ne7 f6+ Kg8 g7 Ra7 f5 Nf3 Rb1 Kf7 g8N Ng1 Rb2 Bh6 g6+ Kf8 f7 Qd3 Rb1 Kg7 f8N Bf4 Nh6 Rg8 Nf7 Nc8 Ra1 Qf1 Ne6+ Kf6 g7 Ra8 Rb1 Na7 Bb2+ Be5 Nf4 c1R Bd4 Rc5 Rc1 Rd5 Bb6 Rd6 Qf3 d1Q Qd5 Re6 Qd6 Qc2 N5d4 Bc4 Nb5 Rc8 g8Q Re8 Bd5 Nbc6 Qg2 Rg8 Be4 Nd8 Bec6 Qcd1 Rc3 Rg5 Rcc2 Kg7 f6+ Kg8 Be8 Bd5 Rc8 Qc2 Bec6 Bc4 Nh8 Bd5 f7+ Kg7 f8N Reg6 Nf7 Be6 Qe7 Bb8 Qd6 Rf6 N8g6 Bd5 Nfh8 Bg8 Nh4 Rfg6 Nf7
2R3bQ/2Qq1B1p/4rr1P/7P/b2k1pnR/KB2N3/1B3qrQ/nB2BNn1 b - - 0 1 legal: proof: h4 c5 a4 e5 f4 b5 fxe5 Qg5 axb5 Qg6 d4 cxd4 g3 Be7 h5 Bh4 gxh4 Qb6 Ra4 Qf6 Ra1 Qd8 Kd2 Ke7 b4 Ke6 e4 d5 c4 g5 Kc2 a5 Kb2 f5 b6 a4 h6 d3 b7 d4 b5 g4 h5 g3 b6 g2 c5 d2 c6 d3 c7 Qd7 Nc3 Ra5 Ka3 Nc6 b8B Nb4 b7 Rd5 Rh4 Nc6 Qe2 d1Q Nf3 g1R Nd2 Rd4 Nd5 Rg6 Ne3 Rd6 Qh2 Qf3 Bh3 Rg3 Ndf1 d2 Bg4 Qf2 Bd1 Nf6 Bb3+ Rd5 Ba7 d1B b8Q f4 Qa8 Bb7 c8Q Nd4 Qc7 Re8 Qac8 Re7 Qh8 Ne2 Bd4 Bc6 Bc3 Ng1 Be1 Ng4 Ra2 Re8 Rc2 Rg2 Rc4 Rd6 Rc2+ Ke7 e6 Bd5 e5 Rf8 Rc5 Rf6 Rc4 Be4 Rc5 Bg6 Rc4 Bf7 Rc5 Bg8 Rc6 Ke8 e7 Rde6 Rc3 Kf7 e8B+ Ke7 Bg6 Bc2 Rc4 Bd1 Bb1 Kf7 Kb4 a3 Rc6 a2 Ka3 a1N Rc4 Rb6 e6+ Ke7 Rb4 Rc6 Rb8 Bc2 Rc8 Ra6+ Qa5 Kd6 e7 Rc6 Qa7 Ke5 e8B Re6 Qc7+ Kd4 Bf7 Bd1 Bc4 Ba4 Bca2 Bb5 Bb3 Ba4 Bb2+
nq3b2/bRrrRKP1/n2Q4/B2N1Np1/kNb1BP2/3p1BQ1/8/n1NqN3 b - - 0 1 illegal: No proof kernel
2b2K2/2r1BNP1/R1k4b/PN1p4/n1q2q2/1R2rQN1/npNN2B1/nQ2b1R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 h5 Kd3 d5 Kd4 Kd7 Ke5 b5 f4 h4 g4 h3 c4 h2 a4 b3 c6+ Kc7 c5 b2 g6 e6 g5 b4 g7 b3 f6 Ba6 f7 Be7 f8Q Bb5 f5 Qd7 f6 Qc8 g6 Na6 f7 Qb8 Nd2 b1N Bg2 b2 Ne2 Bd8 Ng3 Ne7 Kf6 e5 g8R e4 Kg7 e3 Rg1 h1Q a5 e2 Ra3 e1B Rb3 Be2 Qc2 Nc3 Qb1 Rh5 Rh8 Bd1 Rh6 Nc8 Kg8 Nb4 g7 Nb6 Rf6 Kc8 c7 Kd7 c8N Qf4 Na7 Rh3 Nb5 Nba4 Ra6 Nca2 c6+ Ke6 c7+ Kd7 c8N Bg5 Qc5 Bh6 Qe3 Bg4 Qf3 Ra7 Kf8 Nc2 Ncd6 Na1 N2c4 Qe4 Bg5 Rc7 Be7 Qf4 Nd2 Qh2 Nd4 Be6 Nc2 Qc4 Nb5 Bf5 Ngf1 Qhf4 Ng3 Rc6 Kg8 Rc7 f8N+ Kc8 Ng6 Kb7 Nh8 Bc8 Ra8 Kc6 Nf7 Rh5 Kf8 Re5 Ra7 Re3 Ra6+
1kr2qQR/2RQQbpN/4B2r/r4P2/1BQ2Q2/1K2P3/np1b1nq1/B1qN4 b - - 0 1 illegal: No proof kernel
Q1nqQ2K/4n1pR/1Qp1r1P1/5RPQ/R1N1QN2/1r3qk1/1q5b/1BB2rb1 b - - 0 1 legal: proof: c4 e5 f4 exf4 g4 d5 cxd5 b5 a4 Ba3 axb5 Bc5 h3 Bd6 g5 Bg4 hxg4 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 Kf5 a5 d4 f3 e4 h4 b4 f6 Kg6 f5 b6 c6 b7 h3 b5 a4 b6 f4 e5+ Ke7 e6 Kd6 e7 h2 e8Q a3 Bd3 a2 Qe4 f2 Ne2 f1R Nd2 f3 Nc4+ Kd7 d6 f2 d5 Rh3 Bb1 Rb3 Kh7 Ne7 g6 Raa3 g5 Re3 Qe1 Rab3 Nf4 Re2 Kh8 Ree3 Qf3 Re6 Rg1 h1Q+ Qh5 Qf3 Qe4 Qe2 Rh1 Qb2 Rh2 Rd1 Rh1 f1Q Rh3 Qf3 Rh1 Na6 b8Q Nb4 b7 Nc8 Qa8 Rf1 b8Q Be7+ Kh7 Bf6 Qb6 Bd4 Rh2 Bg1 Rh3 Ke8 d7+ Kf8 d6 Nd5 Kh8 Nde7 Qb5 Qe8 d8R Bh2 Rd7 Qd8 Ra7 Ke8 Ra4 Bg1 Qbf5 Kd7+ Qf8 Bh2 Qg4 Bg1 Rh7 Bh2 Qh5 Bg1 Bd3 Bh2 Rb1 a1B Nd5 Qa2 Ra5 Qe8 Rc5 Bd4 Ra1 Qc2 Ra4 Qb2 Bb1 Bdg1 Rca5 Re5 Rc5 Ke6 Rca5 Qd7 Qe8 Qc7 d7 Qd6 d8Q Qd7 Qb6 Qd8 Qe2 Re4 Qh6 Kf5 Nf4+ Kg4 Qh5+ Kg3 Rf5 Re6 Qe4
r2BN1bK/1n4pP/k2nqq1Q/NRr1b3/2QBn3/p1Q3R1/3PQ2Q/1r5B b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 e5 Ke4 a5 f4 c5 b4 Kc7 h4 Kb6 d6 c4 d7 c3 h5 c2 h6 a4 f6 a3 Kf5 e4 Kg6 e3 f7 g3 f5 g2 f6 e2 Rh5 e1Q Nc3 Ba6 Bb2 c1R Nge2 g1N Nd5+ Kb7 b6 Rc6 b5 Nf3 Nd4 Bb4 f8Q Bd6 f7 Rc8 Bg2 Be5 Bh1 Bg3 Nc7 Qf2 Ne8 Rh7 Nb3 Qf1 Bd4 Qe2 Qb4 Qc4 f8Q Rc7 Qc3 Qc8 d8B Rc5 Qd6 Nc6 Qe2 Ng5 Rg1 Be5 Rg3 Ne4 Qe6 Qb4 Q6c4 Ngf6 Rhg5 Qe6 Na5+ Kb8 b7 Ka7 Rf5 Nd6 Rh5 Rh8 Rf5 Rf8 Rh5 Nfe4+ Kh7 Rf4 Kh8 Qb2 h7 Rf7 Rf5 Qa1 Rfg5 Qf1 Rh5 Qff6 Rhg5 Rc7 Rf5 Kb6 b8Q+ Bb7 Qc8 Ba6 Qd7 Ka7 Qf7 Rb7 Qg6 Rbb8 Qh6 Bb7 Nb3 Na5 Rh5 Bd5 b6+ Kb7 Rf5 Rb5 Rh5 Ka6 b7 Rc8 b8Q Nab7 Na5 Rc5 Q4d3 Ba2 Qc7 Bc4 Qh2 Rb1 Qde2 Bf4 Rd5 Be5 Qf7 Rc7 Rb5 Rc5 Qg8 Qh3 Bg1 Ba2 Qgb3 Qhf5 Qa4 Bg8 Qac4 Q5e6 Bd4
k2nRN2/1B1NQP2/Bp6/r3R3/p2BBBr1/1r2P1bn/1Q1Kbq2/2Qb2q1 b - - 0 1 illegal: No possible last move, all moves rejected
1n1kqbK1/b1rN1p1R/7B/1PQR1n1R/Q5NP/2p4q/BrrN4/2Rb1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 g5 Ke4 c5 Ke5 c4 d4 a4 e4 c3 h4 f3 b4 f2 d6 a3 h6 a2 h7 g4 d7+ Ke7 b6 g3 b7 g2 d5 Qb6 d8R Be6 b5 Ra6 Nf3 g1Q Bc4 f1R Bh6 Ra4 Nbd2 Re1 Rc1 a1B Ba2 Rd4 Nh2 Bf5 Qa4 Rd3 Ng4 Qg2 Rf1 Qc6 Re8+ Kd7 d6 Ne7 Kf6 Rde3 e5 Bc2 Rc8 Qce4 Rc5 R3e2 e6+ Kd8 d7 Bd1 Rh5 Rg8 h8R Nf5 Rh7 Bb2 Bd5 Qh3 Ba2 Bba3 e7+ Kc7 e8R Bac5 Re5 Ba7 Rc5+ Kd8 Rd5 Na6 b8N Qe8 Nf3 Rb2 Nd2 Re4 Re1 Re7 Rf1 Kc7 d8Q+ Kb7 Re5 Rc7 Qd5+ Kc8 Qc5 Kd8 Nd7 Nb8 Rd5 Rg7 Nh2 Rg2 Ng4 Ng3 Nf3 Rgc2 Nd2 Be7+ Kg7 Bf8+ Kh8 Nf5 Kg8
1Qq1RN1B/1Bq2p2/3n4/np3Q1B/2kBbP2/1b2K1RN/4BP2/r1n2Qrr b - - 0 1 illegal: No possible last move, all moves rejected
B1Bk4/3brp2/QP2N1NB/1r1b1B1n/1B1RPNQ1/4q3/p2b3R/3rqn1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 a5 g4 h5 Kg2 c5 d4 c4 b4 h4 d6 c3 d7+ Ke7 g6 c2 g7 a4 g5 a3 g6 a2 d5 Ba6 d6+ Kf6 Na3 Be7 Nh3 Qe8 d8Q Rh6 d7 Ke6 Qb6+ Nc6 d8N+ Kf6 Nc4 Rh8 Ne5 Bd6 Rh2 Ke7 Kh1 f3 Bh6 c1R Nf4 f2 Bg2 Nf6 g8B Nh5 g7 Bc8 Bh7 Ra5 g8B Nd4 Ba8 Nf5 Qa6 Ne3 Bg6 Bc5 B8h7 Rg8 Qg1 f1Q Rb1 Re1 Rd1 Be6 Rd5 Rd1 Be4 Bd6 Rd4 Qe1 Beb7 Nf1 Bf5 Bd7 Qg4 Rg6 Bc8 Re6 b6 Rd5 b5 Bb4 b7 Bd2 b6 Rb5 Nf3 Re4 b8B Re3 Nb7 Ree5 Nc5 Kd8 e3 Qe6 Bd6 Qb3 Rf2 Re7 Ne5 Qe6 Neg6 h3 Kg1 h2+ Kh1 Qb3 Nce6+ Ke8 Kg2 h1B+ Kg1 Qa3 Bb4 Bd5 e4 Qd3 Kh1 Qde3 Ng7+ Kd8 Rg2 Re6 Rh2 Re7 Nge6+
5b2/RRQ2pPb/1nQR1r1r/5P1B/N2BKb2/5pRB/n2k1qRN/1r4q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 e5 axb5 d4 f5 d3 cxd3 Nh6 d4 Rg8 d5 Rh8 Qa4 Ng8 Qf4 exf4 Kf2 Kd7 Kf3 Kd6 e4 Kc5 d4+ Kb4 g4 c5 g6 a5 g7 h5 d6 h4 b6 c4 b7 a4 g5 h3 d5 h2 e5 c3 e6 c2 d7 a3 d6 a2 e7 Qe8 d8R Nf6 g8R Qd7 e8B Nh5 g6 Bh6 Bh3 Kb3 Nc3 Ra6 Na4 Bf8 Ke4 Kb4 Be3 c1B Bd4 Rh6 Nf3 Nc6 b8Q+ Bb7 Rg1 h1Q Rg3 Qg1 Qc8 Rb6 Nh2 Nf6+ Kf3 Qc7 d7 Nd5 Ke4 Ba6 Qb7 Be2 Rb8 Be3 d8R Bh5 Rd6 Bd2 Qc8 Qa7 Rb7 Kc4 Qe6 Nb4 Bc6 Ra6 Qd7 Nb6 Rg2 Kb3 Bb5 Kc2 Be2 Be3 Qc6+ Kd2 b3 Qf2 Beg4 f3 Rg7 N4d5 b4 Bf4 b5 Nb4 Rg3 N6d5 b6 Qg1 Rb1 a1R Re7 Qf2 b7 Nb6 b8Q Na2 Qbc7 Qg1 Rb3 Rb1 Rb4 Na8 Rb7 Nb6 Rh7 Qf2 g7 Bg6 Rh8 Bh7 Bh5 Nc8 Red7 Qc5 Rg2 Nb6 Re7 Qc1 Rg3 Qcg1 Red7 Be7 Ra8 Bf8 Raa7 Ra5 Rdg6 Rd5 Rg2 Rd6 R6g3 Rdf6 Rd6
2r1kb1n/1Q1qP1rb/4p3/2rN4/NRq3nb/PR1N2B1/K1p4R/RQ4RB b - - 0 1 illegal: No proof kernel
1K3QR1/1b1qPq2/pb1RN3/3P1rq1/Nk1r1B2/1B2pnn1/N1Q3rB/N3N3 b - - 0 1 illegal: No proof kernel
1B1R4/1nBRPPrp/q4pN1/2b2R1K/k1q2R2/1bn1q2Q/4BnRN/2Q4r b - - 0 1 illegal: No proof kernel
bN6/RR1Pn1n1/2RNqr2/1Bp1q1q1/4RPR1/Bp2Qrb1/1Q6/K1bNk3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 d4 Kf6 Kd2 Kg5 Kc2+ Kh4 Kb2 b5 f4 g5 h6 e5 a5 c5 h7 b3 a6 g4 f6 g3 f7 e4 a7 g2 d6 e3 d7 e2 d5 e1B d6 b4 Qd3 Nf6 Ra4 Bb7 Be2 Bc8 Nh3 g1Q Ng5 Na6 Ne4 Bg3 Ka1 Bf2 Qe3 Qg6 Rg1 Bb7 Nbc3 Ng8 Ba3 Qdg5 d8N Ne7 d7 Nc7 Nc6 Ne6 Nd6 Ng7 Nd1 Bg3 Nb8 Qe6 Ra6 Bd5 Rc6 Kh3 Re1 Kg2 h4 Bf3 h5 b2+ Kb1 Rg8 h8R Bd5 h6 Bf3 Kc2 b3+ Kc3 b1Q h7 Qbe4 Kb2 Q4f5 Ka1 Be4 Na6 Rb8 a8R Rb6 Nb8 Bd5 Ra7 Bf3 Rcc7 Ba8 Rcb7 Qfe4 Rh1 Rc6 Rh4 Ra6 Rg4 Q4d5 Bf3+ Kf1 Be2+ Ke1 Rb5 Ng6 Rbb7 Be7 f8R Qde5+ Nb2 Rc6 Re8 Bf6 Rc8 Rb6 Rc6 Re8 Rf8 Ne7 h8Q Ra6 Qh2 Rb6 Rf7 Rh8 Qg2 Rh1 Rf8 Rf1 Re8 Rf3 Qh2 Qe5f5 Qh8 Bc3 Qh2 Bd2 Nd1 Bc1 Qh8 Nh5 Qb2 Ng7 Rf8 Qfe5 Rf5 Qd4 Re5 Ra6 Re4 Qde5 Nf2 Rb6 Nd1 Rb5 Nc8 Rb6 Rcc7 Rd6 Rc6 Qc4 Raa6 Qf7 Raa7 Rf6 Nd6 Qfe6 Bb5+
b2qr3/2NpQ2B/1Rq2B2/B1pB1PN1/R5P1/5B1Q/1qn1nk1K/bn3Qr1 b - - 0 1 illegal: No proof kernel
rN1N1Nr1/BnPQ1K1p/3bpR1P/q4B2/2q1b3/8/rNn1BQ1b/2kR2N1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 Ba6 fxg5 Bc8 Kf2 Kd7 Ke3 Ke6 Kf4 Kd5 d4 f5 g4 a5 h4 a4 c4+ Ke6 b6 a3 c6 a2 b7 e3 d5+ Kd6 c5+ Kc7 Ke5 f4 g6 f3 g5 f2 g7 e2 h5 e1Q+ Be3 Ra3 h6 Nd7+ Ke6 Qe2 b8N Ra5 g6 Bb7 Nd2 Ngf6 g8Q Qc4 g7 Ra8 Kf7 Ng4 Be2 f1R+ Bf2 Ne3 Qc2 Nb6 Rd1 a1B Rh4 Bd4 Rf4 Na4 Rf6 Be5 Qb2 Nc2 Qd4 Qb5 Nc4 Bh2 Nb2 Qc4 Be3 Rf2 Qh4 Rf3 Qf2 Rh3 Bd4 Ra3 Be3 Ra2 Bd4 Kc8 c7 Bc6 Be3 Kb7 c8B+ Ka7 Be6 Qa5 d6 Be4 c6+ Nc5 c7 Kb6 d7 Kb5 d8N Kb4 Bd4 Nb7 Ba7 Qd3 B6g4 e6 Bf5 Bfd6 Qe8 Ka3 g8N Qc4 Ne7 Rg8 Ng6 Kb3 Nf8 Kc3 Rc1 Kd2 Qd7 Na1 Rc3 Nc2 Rd3+ Kc1 Rd1+
Rn2N2n/r1pR2B1/2b1Q2R/B2N3Q/B1PK1b2/p4q1R/P4R2/1q1n1qkr b - - 0 1 legal: proof: e4 f5 exf5 b5 g4 h5 gxh5 Rh7 c4 Rh6 d3 bxc4 dxc4 Rh8 Kd2 Kf7 Ke3 Kf6 h4 Ke5 f4+ Kf6 b4 a5 h6 e5 b5 g5 b6 d5 h7 a4 h5 a3 b7 g4 h6 e4 Nf3 g3 Nd4 g2 Bd3 g1N Qe1 Bc5 Rh3 Bb4 Bd2 Bd6 Bc2 Ne2 Ne6 Bd7 Ba4 Bc6 Ng7 Ne7 Ba5 Ra7 Nc3 Qf8 Rd1 Ng6 Rd2 Be5 Rd3 Qb4 Rd1 Qb1 Ne8+ Ke7 f6+ Ke6 f7 Kf5 f8B Kg4 f5 d4+ Kf2 d3 Ke3 d2 f6 Bg3 Nd5 Nc3 f7 Bf4+ Kd4 e3 Bg7 e2 f8R Rg8 Qh1 e1Q h8R Qf1 h7 Qf3 Rh6 Kg3 Qh3+ Kf2 Qe6 Kg2 Rf7 Qf1 Rd7 Kg1 Re1 Rf8 Re2 d1Q+ Rd2 Qg4 Rf2 Qf3 Rh3 Nd1 Rh6 Na6 b8R Rf7 Ra8 Nb8 Rg8 Rf5 h8Q Rh5 Qh7 Rh1 Rh8 Nf8 Qhf5 Ng6 R8h7 Nh8 Rh3 Nf7 Qh5 Nh8 Rh6
2q1Nn1R/1bp2r1Q/NB2B2K/4B1rQ/2Pn1kbp/qBNP2n1/2B5/2R4q b - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 g5 fxg5 b5 axb5 Bh6 Ra5 Bg7 Ra1 Bf8 h4 e6 g4 Bd6 h5 Ke7 g6 Ke8 h6 Bf8 g5 Bg7 hxg7 Qd3 Nf3 Qd7 Ng1 Qd8 Kf2 Ke7 Ke3 Kd6 Kf4 a5 b4 f5 c4 h5 b6 e3 b5 a4 b7 a3 b6 e2 Nh3 e1Q Bb2 a2 Be2 Nd7 b8N Nh6 g8B Nf8 g7 Rh7 b7 Ra5 g6 h4 Nc3 Qe8 Kg5 Ke5 Nf2 f4 Na6 f3 b8B Bb7 Nfe4 f2 Nd6 f1B Ba7 Qc8 Bb6 Nf5 Ne8 Ng3 Rc1 a1N Rg1 Nc2 Bf7 Rd5 g8B Bh3 g7 Nd4 Bg6 Bg4 Bc2 Ra5 Rg2 Qh1 d3 Rc5 Bf7 Rb5 g8Q Rg7+ Kh6 Kf4 Rh2 e5 Rg2 e4 Be6 e3 Qh7 Rf7 Bf3 e2 Bc6 Rd5 B6a4 e1Q Bab3 Rg5 Qe2 Bh3 Qh5 Bg4 Re2 Qd2 Re5 Qdd1 Rd5 Qdf3 Rd8 Qc6 Ba1 Qc5 Ng7 Qa3 Nd1 Ng6 Rh8 Nb5 Ne8 Nf8 Bg7 Nd4 Nc3 Qa4 Bf6 Qa3 Be5+
1k1bNb1K/2p1B2P/2Q3NB/1B1rnB1R/r1PB2n1/2q5/qn2p1q1/4Q1RR b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 h5 gxh5 b5 axb5 Be6 Qe2 Bf5 Qd1 Bc8 f3 e5 Kf2 e3+ Kg3 e4 Ra5 e2 Kg2 e3 Ra3 Bb7 Ra1 Be4 fxe4 Qf6 Ra3 Qh4 Ra1 Qd8 Kg3 Kd7 Kg4 Kc8 Kf5 e1N b4 a5 h4 g5 d4 g4 c4 e2 b6 f6 Kg6 f5 d5 g3 d6 a4 e5 g2 e6 f4 d7+ Kb7 e7 f3 e8B f2 b5 a3 h6 a2 h7 Bh6 h5 Bf8 h6 Nd3 Nd2 Ra5 Ne4 Qh4 d8B Nc6 Nd6+ Kb8 b7 Na7 Be7 Nc5 Nh3 g1B Qe1 Nb3 Nf4 Nc6 Bh3 f1Q Bf5 Bc5 Bd2 Ka7 b8R Nf6 Bed7 Bd4 Ne8 Ng4 Rb1 a1Q b6+ Ka6 b7 Ka7 Kf7 Qa2 Ng6 Rd5 Rd1 Rg8 h8B Qg2 h7 Nc5 Bh6 Qhh3 Be5 Bf2 Bd4 Bh4 Rd8 Qc3 b8Q+ Ka6 Qb5+ Ka7 Rb8 Bg5 Rb6 Na4 Qc5 Ka8 Rb5 Nb2 Ra5+ Kb8 Ra1 Nb4 Bb5 N4d3 Qc6 Bh4 Nh8 Rg5 Ng6 Nde5+ Kg8 Rh5 Kh8 Bg5 Bec5 Bd8 Be7 Rh3 Qf2 Rd3 Rag1 Rd1 Qe1 Ra1 Ra3 Qb1 Rb3 Ra4 Ra3 Qa2 Rb3 Qc1 Rbh3 Qc3 Rh5
2qr1r2/kP1b1BnQ/q3B1rB/1BB1Qp1p/4N1bK/3Q4/1RR4P/1nn2N2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 c5 fxe5 Be7 d4 cxd4 g5 Bf6 gxf6 Qb6 Ra5 Qc7 Ra1 Qd8 Kf2 h5 Kg3 a5 e4 g5 b4 d5 c4 Kd7 f7 Kc7 f8B Kb7 b6 g4 b5 d3 c5 a4 e6 d2 e5 a3 e7 d4 e8Q d3 e6 a2 e7 Be6 c6+ Kc8 c7 Kb7 Nf3 Nf6 Qd7 Ne8 Kh4 g3 Ng5 g2 Ne4 Na6 c8B+ Kb8 b7 g1R Qc2 d1B Bch6 d2 Qcd3 Ng7 Be2 Rg5 e8B Ka7 Bf7 Nb4 Bf1 Bg4 Bc5+ Kb8 Rg1 d1N Rg2 Rf8 Rb2 Nc3 Nbd2 Rg6+ Qe7 Qc7 Rc1 a1Q Rcc2 Qa6 Be2 Bd7 Nf1 Nb1 Qe5 Bc6 Bd7 Na2 Bde6 Ne8 Qg7 Bd7 Qh8 Qc8 Qh7 Kc7 b6+ Kc6 b8Q Ng7 b7 Nc1 Bb4+ Kb6 Qe5 Rb8 Qdc3 Ka7 Bb5 Qc4 Qd2 Rbd8 Qd3 Qc8 Bc5+
2K2R2/1P1NQ1k1/B1bb4/pQrn1pn1/2RRqn2/3b1B2/1rBqP3/1B3NB1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 Kd3 d5 g4 f5 b4 Kf7 c4 h5 c5 h4 c6 h3 e6+ Kg7 g6 h2 e7 Rh3+ Nf3 Na6 e8B Nh6 b6 Bb7 b5 Qb8 c7 Be7 c8B Kf8 g5 Kg7 Bg2 Ra7 Ra4 Ba8 b7 Nf7 b6 Nd6 Rc4 Rg3 Be3 Rg4 Ne5 Nb5 Nd7 Bd6 Nd2 Nc3 Nf1 Nc7 Bg1 Ne4 Bf3 Ne6 Qe1 Qc7 b8Q Qd8 Qb4 Rc7 Ba6 Bc6 b7 Rh4 Qb5 Rc8 Qc7 Nf4+ Kc2 d3+ Kb3 d2 Ka4 d1N Rd4 Kg8 g7 Ne3 Bf7+ Kh7 g8B+ Kg7 g6 Ng5 Rc4 d4 Be6 Kh6 g7 d3 Bed5 d2 Bde4 d1Q+ Bc2 Qd3 Bgd5 Qe8 g8R Qee4 Rf8 Kg7 Rd4 Rg4 Ba2 Qd2 Bab1 Ned5 Qd8 Rg3 Qe7+ Kh6 Bg4 Rb3 Bf3 Rb2 Be3 Bc7 Rg1 h1B Rg4 Bd6 Bg1 Ra2+ Kb3 Rb2+ Kc4 Bb8 Kc5 Rc7 Qd8 Kg7 Kd6 Bg2 Qa4 Bb5 Qb3 Bc4 Qb5 Bd3 Qe8 Ne3 Qe6 Rc5+ Ke7 Ned5+ Kd8 Be5 Qe8 Bc7+ Kc8 Bh1 Rh4 Bg2 Rh6 Bh1 Rc6 Bd6 Qe7+ Kg6 Rh8 Nb6+ Kd8 Rc3 Bh2 Qe5 Bg4 Bg2 Rc5 Bc6 Bf3 Nbd5 Kc8 Qe4 Rf8 Kh6 Bg1 Kg6 Rcc4 Kh6 Rb4 Rc5 Rbc4 Kg6 Qd8 Kg7 Qe7+
2NbrR2/1PBR4/2p2qQ1/R2N3q/P1n3Bp/1k2Bb1K/b1r1Rq2/1n4QR b - - 0 1 illegal: No proof kernel
7b/1P3p1N/1nn5/1Bk1Pbr1/1p1NQqRB/2BKBB2/q2n1r2/N2Qq1R1 b - - 0 1 illegal: No proof kernel
QnNq4/1pn1b1rB/b1Br1Q2/PqB3Q1/7B/2qk1N2/2R2nPp/1B3KR1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 e4 Ke7 d4 h5 a4 f5 a5 c5 e6 Kd6 e5+ Ke7 g6 f4 g7 h4 Nf3 c4 Na3 h3 Rg1 b3 Ra2 c3 Be3 b2 Qc1 b1Q Nc4 h2 Nb6 c2 Bd3 Qb2 Kf1 Nf6 g8B Ra6 Qd2 c1N Bb1 Qc3 Rc2 Bd7 d6+ Ke8 d5 Rh7 e7 Rg7 Bd4 Nd3 Bc5 Bb5 Nc8 Kd7 Qf2 Rb6 Qh4 Ba6 Qg5 Ne8 Qf6 Nc7 Qg5 Qe8 Qf6 Qg6 Qg5 Qf6 e8B+ Kd8 d7 Rd6 e6 Be7 Bg6 Nf2+ Bd3 Qf8 Bb5 Nd3 Bc6 Qe8 Ne1 f3 Qf6 f2 Nf3 Na8 Qg5 Kc7 Qf6 Bf8 e7 Qd8 e8Q Be7 Qh5 Qb4 Ke2 Qc3 Qhg5 f1Q+ Ke3 Qc1+ Ke2 Q1b2 Kf1 Qe8 Ba4 Qb5 d8B+ Kd7 Ba2 Nc7 Bb1 Re6 d6 Kc6 d7 Qf8 Qgf4 Kd5 Qg3 Kc4 Qgg5 Qb3 Bc6 Nf2 Qgh6 Kd3 Qhg5 Bd6 Be7 Qb5 d8Q Qe8 Bd4 Ba3 Bec5 Bb4 Be5+ Qd7 Bg3 Rd6 Bh4 Qe7 Qe8 Qd8 Qg3 Qd7 Ne7 Re6 Bb6 Qc8 Ba7 Nd7 Qgg5 Bd6 Bc5 Qb8 Nd5 Be7 Nb6 Qa8 Qb8 Rd6 Qa7 Qb8 Qa8 Qd8 Nc8 Nb8 Bh7+
1kqb1Q1B/np3R2/3PN2R/1P2RB2/1NrR4/1B1n2bK/1bpqr3/nQ2R3 b - - 0 1 illegal: No proof kernel
R7/1pR1q2q/PNRB3N/2p2P2/1B6/2rbr3/Bnk2bRK/r2QnQRn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 Kf2 Kf6 Kg2 g5 a4 e5 d4 c5 h4 e4 a5 e3 h6 e2 d6 e1N+ Kh2 b3 h5 g4 a6 b2 d5 Qc7 d7 Be7 d8Q Nd7 h7 Nh6 d6 Re8 h8R Nc2 Bc4 Ne5 d7 Qb8 Ne2 Nc6 Bd2 N6b4 Ba2 Qc7 Na3 b1Q Rh7 Nd3 Bb4 Nb2 Rg1 Ne1 Rg2 Qc2 Nc4 g3+ Kh3 Qe4 Nd4 Ng4 h6 Qe6 Nb6 Nf2+ Kh4 Nh1 Kh3 Rg8 Qf8+ Qf7 d8R Rh8 Re2 g2 Kh2 g1R Rg2 Bd6 Rhg7 Qe7 h7 Bd7 Rc1 Bb5 Rc8 Bd3 Rc6 Rg8 h8R Re8 Rcc2 Rf1 Rg1 Rf3 Rgh7 Rf1 Rcg2 Rg3 Qh6+ Qg6 Qh3 Re3 Rg7 Qh7 Rhg8 Rf8 Rh8 Rf7 Ra8 Rff3 Rgg8 Rg7 Rgc8 Rf1 R8c7 Rgg3 Ne6 Rgf3 Nd8 Rg3 Be6 Be5 Nf7 Bd4 Nh6 Re2 Qb3 Bf2 Qd1 Ree3 Ba2+ Kg7 f6+ Kg6 Ng4 Kf5 f7 Ke4 f8B Kd4 f5 Rgf3 Ba3 Kc3 Nh6 Rg3 Qa1 Kc2 Bb4 Rg4 Qf3 Rc4 Qg4 Rc3 Qd4 Qef7 Bd6 Qe7 Qc4 Be4 Be5 Ned3 Bd6 Rc1 Qb5 Ne1 Qf1 Bd3 Bg8 Kd2 Qa4 Ra1 Ba2 Kc1 Qb3 Kd2 Qg8 Kc1 Qg4 Kc2 Qd1+
3n4/P4nbr/R1Npq3/2NQ1N2/BBNQ3N/Rrb3KP/pq1R2b1/r5k1 b - - 0 1 illegal: No proof kernel
rRB4R/p2P2N1/2Q1n1Rb/KN1Q2bq/N4P2/n1p1rbB1/1k1qR3/2nR4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 d4 c5 Kd2 e5 Kc3 h5 b6 c4 f6 h3 b5 e4 Kb4 h4 b7 e3 g5 h2 g6 e2 b6 e1B+ Nc3 h3 f7 Bd2 g7 Bf5 Ne2 Bd3 Qa4 Qe8 Ka5 Ne7 g8R Qd8 Ra2 Na6 b8R Nc7 b7 Bfh6 f8N Nf5 Ne6 Be4 Rg6 Re8 Ng7+ Re6 Rc8 Ne3 b8R Nc2 f3 Qd7 Rh8 Bdg5 f4 Na3 Be3 Bf3 Bf2 Qd8 Bg3 Qd7 Rg1 h1N Rc2 h2 Bh3 Nf2 Rd1 h1Q Nb5+ Ke7 Rb2 Re3 Nec3 Nd3 Re2 Nc1 d6+ Kf7 d5 Ne6 Qc2 Qh2 Na4 c3 Qe4 Qe8 d7 Ke7 Rf6 Qh5 Rg6 Kf7 d8Q Qf2 Ree1 Qd2 Qb6 Ke7 Re2 Kd7 Qd3 Ke7 d6+ Kd7 Qd8+ Kc6 Qb1 Kd5 Qe8 Kc4 Qe4+ Kb3 Q8c6 Nd8 Bc8 Ne6 d7 Ka2 Qed5+ Ka1 Nb6 Kb2 Na4+
2K2b1n/4BBNQ/4RB1b/2NP1q2/3Nb2Q/rppR1NP1/2r3N1/bnk3b1 b - - 0 1 illegal: No proof kernel
b6n/B1Q2N2/K1N1Q1Rb/1p2b1p1/1Pn1k1b1/Q2QP1q1/1rRQb2N/4Br2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 Bg2 a4 Bd5 d3 Bb3 axb3 cxd3 Qe7 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 c5 Kc3 f5 Kc4 g5 Kb5 b6 a4 c4 h4 f4 h6 f3 a5 f2 h5 f1B h7 c3 e6+ Kd6 e7 b2 e8Q c2 h6 Ra7 a6 Ne7 Be3 c1B Qd2 Bg7 Nc3 b1B Rh2 Be4 Nf3 Rf8 h8B Bg6 h7 Nec6 Qe6+ Kc7 Qd3 Rb7 a7 Be5 a8Q Be8 Qa3 Nd7 Ka6 Na5 d6+ Kc6 Nd5 b5 Ra2 Bf7 Rh6 Qc7 Rc2+ Nc4 Nh2 Bb2 Rg6 Be8 Bd2 Rf2 e3 Nf8 Be1 Be2 d7+ Qd6 d8Q Ba1 Qf7 Bcg4 Qe6 Rbf7 Bf6 Rf1 h8N Bc3 Bg7 R7f2 Nf7 Bd7 Bh8 Bg7 Qda5 Bh6 Bf6 Rg2 Bd8 Be8 Bb6 Ba1 Ba7 Bb2 Rg7 Ng6 Rg8 Nh8 Rg6 Bd7 Qd2 Ba1 Qad3 Bc3 Qa3 Bb2 Qee4 Bdf5 Qe6 Be4 Ne7+ Kc7+ Nc6 Qg3 Nb8 Ba8 d5 Rgf2 Nc6 Bf6 Qee4 Be5 d6+ Kd7 Rg7 Ke6 d7 Rg2 d8Q Rgf2 Qc7 Rg2 Qdd4 Kf6 Qed5 Kf5 Q4c3 Rgf2 Qe6+ Ke4 Rg6 Rf3 Bf2 Rb1 Be1 Rb2 Qcb3 Rf1 Qbd3+
n1nR1B2/1rRQN3/1b4Qq/NpPB2N1/2nk2N1/2nR1p2/3P2nN/2Kb1r2 b - - 0 1 illegal: No proof kernel
1Nrb4/B3rB1K/Q1B1R2P/5nRp/3B3N/nbBqb1bp/4k2P/1Q2bR2 b - - 0 1 illegal: No proof kernel
2q1BQ2/B1BRB3/Npn1p3/1Q2bb2/4Rkrb/1B2bn1P/2NrP3/1b3Q1K b - - 0 1 illegal: No possible last move, all moves rejected
7b/B3N1nP/q4R2/Nn1Q2R1/NK3N1p/2Nb1B1r/bkP1r2p/b1b3QR b - - 0 1 illegal: No proof kernel
RN1bKN1r/3Q1PrR/Q1BpN2N/1br1pk2/1Pn5/Qr4q1/7r/BN5n b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 e5 Kd5 g5 c4 a5 b4 a4 h4 a3 f4 g4 h6 a2 b6 d3 b7 g3 h5 g2 c5 d2 h7 Ra3 h6 Ra8 c6 Bc5 c7 Ra4 Bb5 Bd6 Nh3 g1R Ng5 Bc5 Ne6 Ra5 Bc6 Rg7 Bb2 Ba7+ Kd6 Bb6 Qf3 Rc5 Qa3 d1R+ Bd4 Na6 b8N Rd2 Rh4 Bb7 c8Q Nc7 Rh2 Ba8 Qca6 Ne7 Rh3 Qg8 Rh1 Kf7 f6 Kg6 f7 Ncd5 f8N+ Kf5 Rh3 Rh2 Rh5+ Ke4 f5 Bd8 f6 Bb7 Rh4+ Kf5 Bc3 Ne3 Bb2 Rf7 Rh3 Qg3 Bc3 Rg8 h8N Rfg7 Nf7 Rh8 h7 Ba8 Bb5 Bg2 Bc6 Bf1 Bd4 Bb5 Rh4 N7d5 Bc3 Ng4 Nh6+ Ke4 Rh3 Nf2 f7 Nh1 Rh5 Ke3 Rh3 Nb6 Rh5 Bc7+ Ke7 d6 Rh3 Nc4 Ke8 Bd8 Rh4 Rhg8 h8Q Kd3 Rh5 Ke3 Nc7 Kf4 Qh7 Rh8 Qf5+ Ke3 Qd7 Kf4 Nf5 Kg4 Rh7 Kg5 Nh6 Kf6 Nd2 Kg5 Ne6+ Kf6 Re1 a1R Nb1 Raa2 Ba1 Rab2 Re2 Rb3 Ra2 Rg5 Qc1 Rg2 Qab7 Rh2 Ra8 Rg6 Qa6 Rg7 Ng8+ Kf5 Qe3 Rbb2 Qea3 Rb3 Nh6+
2NR2NN/QNpr4/3Qb3/2R1Bnn1/b1P1B3/nn1Pp2q/KN2Q1k1/4r1n1 b - - 0 1 illegal: No possible last move
1N3n1b/1Pnb2B1/n2P2N1/1p3rr1/BQ3RBQ/nN3p1K/k5NN/1q2n2R b - - 0 1 illegal: No proof kernel
Q3b2k/2N1r1N1/BQb2b1R/2n5/q1PNpN2/rb1Q4/3nKPp1/BR3Nr1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 h4 a5 h6 g5 b6 e5 f6 d5 h5 g4 h7 d3 b5 d4 h6 a4 b7 g3 b6 g2 Bb2 a3 Ne2 a2 Nd2 Nd7 b8N Bb7 Na6 Qe8 Nc7 Be7 c3 Be4 b7 Nc5 b8Q Ra3 Qb6 Ba8 Rc1 a1R Rh5 Kg6 f7+ Nf6 f8N+ Kf7 Rh2 Nfe4 Nfe6 Qa4 Rh5 Bd8 Rg5 Re8 h8Q Bf6 h7 Bc6 Rg6 Re7 Qa8 Rb1 Ng7 Be8 h8N+ Kg8 Nf7 Kh7 Nd8 Kh8 Nf4 Bc6 Qe2 Rba1 Nb3 d2+ Kd1 Rb1 Ba1 Be8 Qe3 Bc6 Bd3 Be8 Ke2 d1B+ Ke1 Bh5 Nc6 Bf3 Ba6 d3 Qe2 d2+ Kd1 Bg4 c4 Bd7 Nd4 Bb5 Qd3 Bc6 Ke2 d1B+ Ke3 Bc2 Nd2 Bb3 Re1 Rd1 Ke2 Rb1 Nf1 Nd2 Ne3 e4 Rg1 Rc1 Re1 Rc2 Rb1 Rc1 Bb5 Ne6 Ba6 Rg1 Nf1 Nc5 Rh6+
b2b1Qk1/4b2n/NN1rR2b/4B1pn/B1rRPR2/1QqpPR2/n5R1/4Q2K b - - 0 1 legal: proof: g4 b5 d4 h5 a4 hxg4 axb5 e5 f3 c5 dxc5 e4 fxe4 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 f5 Kg2 Kf7 h4 d5 b4 g5 c4 a5 e3 a4 b6 f4 b7 g3 c6 d4 c5 a3 b5 a2 h5 Ra3 h6 Qd6 c7 Nc6 b8Q Qd5 b6 Na7 h7 Nc6 b7 Bg4 c8R Be6 Rh3 f3+ Kh1 f2 Re8 Bd6 Bb2 Bd7 Nd2 Be7 Ne2 Nf6 Qe1 Qc4 Nb3 Nb4 c6 Qc3 c7 Ra6 c8Q Rd6 Rd1 a1B Nf4 Bc6 Bb5 f1N Nd5 Na2 Nc5 d3 Ba4 Rf8 h8R Nh7 Nb6 Bd5 Rd2 g2+ Kg1 Ng3 Na6 Bd8 Re6 Nh5 Rf3+ Kg7 Kh2 g1B+ Kh1 Bh2 Rg2 Be7 Qc5 Rc8 Rhf8 Be5 Qc4 B5f6 Qb3 Rc4 Qc8 Bd8 b8R Bfe7 R8f4 Kg8 Rb7 Bc6 Rd7 Ba8 Qb8 Qa5 Bh8 Bg7 Qc8 Bh6 Be5 Rdc6 Rd4 Rd6 Ref6 Qc5 Qf5 Qb4 Re6 Qc3 Qf8+
3n1nQB/Rr5N/1k2BK2/b1BpBQP1/2PR1n2/1B1pqb2/N1r2r2/1Q5r b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Ke4 d5+ Ke5 Kd7 f4 Kc7 g4 h4 b4 a4 b6+ Kb7 f6 e6 b5 h3 f7 a3 f5 a2 g6 h2 g7 Rh7 f6 Be7 f8B Bc5 f7 Ra6 Nc3 Ne7 g8B Nbc6+ Kf6 e5 Nh3 e4 Bc4 e3 Ng5 d3 Bb3 e2 Bb2 e1N Qb1 Bb4 Rg1 Rg7 Nh7 h1R g5 Ba5 Rg4 Qe8 Rd4 Ng6 Bc5 Nd8 f8Q Qe3 Be6 Ng2 Qg8 Ra8 Qf1 Nf8 Qf5 Kb8 b7 Kc7 b8B+ Kb7 b6 Nf4 Re1 a1R Be5 Rc1 Na2 Ka6 c4 Rb7 Bc3 Rc2 Ra1 Bd7 Bb2 Be8 Bc3 Bh5 Bb2 Bf3 Bc3 Rd7 b7 Ra7 b8Q Rab7 Ba4 Rbb2 Bb3 Rf2 Qb4 Rbc2 Bb2 Rb7 Qe1 Rb8 Qb1 Kb7 Nc1 Kc6 Ra3 Rb7 Na2 Bc7 Ra7 Ba5 Ba1 Rc7 Re4 Rh5 Bed6 Nd7+ Ke7 Rb7 Bh8 Nf8+ Kf6 Rhh2 Rd4 Rh1 Bb4 Kb6 Be5 Nh3 Bbd6 Nf4 Bc5+
1rb1B1rQ/q4N1R/bQ3nB1/1p3P2/n1n2p1P/b5R1/5BNk/KRB1B1n1 b - - 0 1 illegal: No proof kernel
2B3Q1/5nR1/1nrNn2N/P1rk2pp/q3N2P/2N1B3/Nr2Bn2/bRb1Q1K1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 c4 e5 fxe5 d5 cxd5 f4 Nf3 Be7 Ng1 Bf5 gxf5 Bf8 Kf2 Kf7 a4 b5 e4 c5 d4 g5 h4 h5 e6+ Ke7 e5 b3 Be3 b2 Qe1 b4 Nh3 c4 Nc3 b1R Kg1 f3 Nf2 b3 Be2 b2 Nfe4 Ra6 a5 Rc1 Rb1 Nd7 Rh3 Rc6 d6+ Ke8 d5 Nc5 e7 Kd7 e8N Ne6 f6 Bg7 f7 Nh6 f8Q Nf7 Qg8 f2+ Kh2 f1N+ Kg1 Qb8 Rf3 Nh2 Rf6 Ng4 Rg6 Bf6 Rg7 Qb4 Qf1 Nf2 Qe1 Kd8 d7 Ke7 d8N Qa4 N8d6 Rc5 Nc6+ Kd7 Na2 c3 Na7 c2 Nab5 Rh7 Nbc3 Rh8 Qh7 Rb8 Qg8 Rbb5 Nc8 Rb7 d6 Kc6 d7 Rbb5 Ncd6 Rb6 Ncb5 Kd5 d8N Rcc6 Nf5 Rc5 Nb7 Rbc6 Nh6 Rb6 Ra1 b1N N7d6 Nd2 Rb1 Nc4 Nbc3+ Kc6 Bd3 Rb2 Bf1 Nb6 Be2 Ned8 e6 Be5 e7 Ne6 Nd1 Kd5 e8B Rc6 Qf8 Rb4 Bd7 Ba1 Qg8 Rb5 Rb3 Rbc5 Rb4 Rb1 Bc8 c1B Rb5 Rb2 Rb4 Rbc2 Rb1 Rb2 Ndc3+
3KRN2/q1n5/1n1R1N2/p1Ppn1PN/QN1rr2k/1b6/2B1Qb2/n1BNQ1r1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 b4 h4 c4 e4 f4 d3 g4 d6 b6 h3 f6 Kg6 b5 h2 c5 e3 b7 d2 b6 e2 f7 e1R f5+ Kh7 f6 Kg6 Qe2 d1N Nh3 Qc7 Nf4+ Kh7 g6+ Kh6 g7 Kg5 Nh5+ Kh4 g5 Qd7 Nc3 Na6 b8N Qa7 Kc6 Ne3 b7 Nc2 Nd1 Nc7 Na6 Be6 b8Q Bb3 Kd7 d5 Kd8 Bd6 f8Q Bg3 f7 Bf2 Nb4 Ne7 g8N Nc8 Ngf6 Nb6 Qfe8 Rh7 Bg2 Rg1 f8N Rh8 Ra2 Na1 Be4 Rh7 Qd7 Re7 Bh7 Re4 Qa4 Rd4 Qc8 Rb8 Bc2 Rb7 Qce6 Rb8+ Ke7 Rd8 Q6e5 Rd6 Q5e3 Re6+ Kd8 Ree4 Qc3 Rg3 Rf1 h1N Qce1 Rg1 Ra3 Bg3 Rf5 Nf2 Re5 Ng4 Re6 Bf2 Rd6 Ba2 Rf3 Bb3 Rf5 Rf1 Re5 Rg1 Re7 Ne5 Re8
1Kb3QQ/Q4RrR/bn1n1qpQ/5Q1B/2PB2P1/p5b1/rN1kNR2/2n1n3 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Ng8 h6 Qb6 Bd2 Qf6 Bc1 Qg7 hxg7 Bb7 Rh6 Ba6 Rh1 Bc8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 f4 h5 c4 d5 b4 a5 Kb6 e5 Kc7 h4 f6 d3 f7 d2 b6 Ke3 b5 h3 g3 a4 f5 d4 b7 e4 b6 d3 f6 h2 Nc3 Nd7 b8Q Nh6 g8Q Nf5 b7 Rh7 Qc2 Rg7 Nge2 Nd6 Qa7+ Nb6 Bb2 d1N b8Q d2 Rc1 Be7 f8R Nf2 f7 d1Q Bh3 Bh4 Bg4 Nd3 Bh5 Qd2 Rcf1 Nc1 Rf4 Qd4 Qb1 Kd2 Nd1 e3 Qf5 Qe5 Bd4 Qf6 Nb2 Ba6 g4 Bc8 Rhf1 h1B Re8 Be1 Re7 Bg3 f8Q Bhb7 Rf7 Ba6 Rd7 Re7 Qh6 Rg7 Qgh8 Bcb7 Qbg8 Bc8 Nc3 e2 Re7 e1N Ne2 a3 Rf7 Rb8 R1f3 Na4 Re3 Rb3 Ree7 Nb6 Kb8 Rc3 Rc7 Rc2 Rf8 Re7 Rf7 Rd7 Rh7 Rg7 Rf7 Nb5 Nd3 Ra2 Nb2 Nd6 Rf2+
R6n/r2nr2b/br2P1k1/NBpB4/QP2RBN1/1K3N1B/pQ4q1/1b1Bb3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 g4 c5 d4 h5 Kd2 f5 Kc3 Kf7 e4 a5 d5 h4 g6+ Kg7 g5 h3 b6 a4 e6 a3 e5 h2 b7 f4 d6 f3 e7 f2 e8B Rh4 d7 Ra4 Bh3 f1B Nd2 Re4 Ngf3 Qe7 d8N Bd3 Nb3 Nd7 b8Q Ra7 Nf7 Bb1 Nh6 Ba6 Ng4 Nh6 Na5 Nf7 Qa4 Nh8 Re1 h1B Bf4 Qe6 Qbb3 Bd6 Qa2 Qg8 b4 Rb7 Qb2 Rb6 Rd1 Bg2 Rd4 Re1 Re4 Bf1 Bf7 Bfd3 Bd5 Bb8 Bc6 Qd5 Bb5 Re3 Kd2 c3+ Kd1 c2+ Kc1 Kg8 g7 Kf7 g8B+ Kg6 Kd2 Qb7 Kc3 c1R+ Kb3 Rh1 Bd5 Qa8 Bg2 Rh7 Bh3 Re7 e6 Be5 Ra2 Bc3 Ra1 Be1 Ra2 Kf5 g6 Qc6 g7 Kg6 g8B Re2 Bf1 Rh2 Bg2 Rhh7 Bh3 Qc7 Be3 Qh2 Bf4 Qg2 Bf7+ Kf5 Nge5+ Kf6 Bh5 Rhf7 Re3 Bh7 Re4 Kg7 Nd4 Kf6 Bd1 Rg7 Ng4+ Kg6 Nf3 Rgf7 Qd4 Rg7 Rf2 a2 Qb2 Rgf7 Bg3 Re8 Nfh2 Nb8 Rf1 Rg7 Rf8 Ra7 Bf4 Ree7 Nf3 Nd7 Ra8
rn4q1/br3B2/1b1pR2n/3NB1QK/NQ3QQ1/k6R/p3PQP1/1rr1Bb2 b - - 0 1 illegal: No possible last move
Kn3r1r/2bb4/3pRPp1/P1kN2Q1/n3QQN1/5n2/B3R3/BQ1qrQBn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 e5 Kf3 Ke7 Ke4 b5 Kd5 g6 c4 e4 f4 d6 a4 b3 h4 b4 f6+ Kd7 c6+ Kc7 h6 Kb6 f7 b2 h7 e3 c5+ Ka5 c7 b3 f5 Kb4 c6 e2 h5 e1N a5 Ng2 h6 Ra7 Rh2 Nd7 Be3 Ne1 Nh3 Ra6 Nf2 Rb6 Bc4 Qf6 Ng4 Ne5 Nc3 b1N Re2 b2 Bg1 Rb7 Ba2 Be7 f8Q Ng2 Qf1 Bd7 c8Q Qg7 c7 Nc6 Qa8 Rb8 c8Q Nh4 Qcd8 Nf3 Re6 Bh4 Qg5 Rd8 Qff6 Rf8 Qe5 Nb8 Qef4+ Ka3 Qc6 Bf2 Qcb5 Bb6 Qbc4 Bc7 Qce4 Nbd2 Rc1 b1R Rc2 Nc4 Re2 Re1 Qb1 Nb2 Qfe4 Na6 Qef4 Na4 Qbe4 Bc8 Kc6 Bd7+ Kb7 Ne7 Nd5 Nb8 Ka8 Qd4 Qb1 Qd1 Qfe4 Rd8 Qgf4 Rhf8 h8B Rde8 Bc3 Rh8 h7 Ref8 f6 Nf5 Bcd4 Ng3 Ba1 Nh1 Qg5 Re8 Qef4 Rhf8 h8Q Rc8 Qhh2 Rh8 Qc4 Rcf8 Qc6 Qb3 Ne7 Kb4 Qb7+ Kc4 Qbd5+ Kb4 Qdf5 Kc4 Nd5 Kb5 Qfe5 Kc6 Qee4 Qd1 Rf2 Kc5 Qhf4 Qd3 Rb2+ Qd4 Rf2 Qd1 Re2+
1Q5K/1BQ1qr1b/2p1BBB1/1b2RQ1B/3N2Pr/r1k1RN2/p1P2nr1/b1n5 b - - 0 1 legal: proof: f4 b5 d4 h5 a4 e5 axb5 g5 dxe5 h4 Qd3 Na6 fxg5 Nb8 g4 Ba3 Qe3 Bf8 Qg3 hxg3 Kd2 Ke7 Ke3 Ke6 Kd4 f5 e4 a5 b4 d5 h4 c6 h5 f4 h6 g2 b6 f3 h7 f2 g6 a4 b5 a3 g7 a2 b7 Be7 b6 Nf6 g8B+ Kd7 e6+ Kd6 Rh5 Ra5 Nc3 Ra8 Re5 Ra5 Nf3 g1R Bg5 Bd7 Ba6 f1R Re1 Qf8 Re3 Ra3 Ne2 Rg2 Bh4 Bd8 e7 Bf5 e8B Nbd7 Bg6 Qe7 Be6 Nc5 b8Q+ Bc7 b7 Nd3 Qa7 Nc1 b8Q Rff2 Qc8 Ba5 Bb7 Bd2 Rc3 Bh6 Qf8 Bg7 Re3 Ng8 Be8 Bf6 Qa8 Rh2 B6d7 Rh3 Bf7 Rg2 Bg5 Be6 Bh5 Bg7 Qf7 Nf6 Rf5 Qf8 Bdc8 Rh4 Qg6 Bg8 e5+ Kc7 e6 Kd6 Qf7 Ne4+ Qf6 Nf2 e7+ Kc7 Ke5 Kb6 Qb8 Kb5 Bg6 Kc4 Bh5 d4 Bg6 d3 Bh5 Ra6 e8B Bh6 Qfd6 d2 Qdc7 d1B Be6+ Kb4 B8f7 Ra3 Kf6 Bg7+ Kg6 Bd4 Bf6 Ba1 Ned4 Be2 Rfe5 Qe7 Kh6 Bb5 Be8 Bf7 Kg7 Rf8 h8Q Bg6+ B8f7 Bgd3 Qh7 Kc3 Qe4 Kb4 Qf4 Bg6 Qf5 Bh7 R3e4 Kc3 Re1 Qd6 Bfg6 Rf7+ Kh8 Qe7 R1e3+
3n4/bQ1r4/NpQBR2b/2BKRqN1/2r1B1r1/1PkP3p/n1nn2Q1/BB6 b - - 0 1 illegal: No possible last move
R2B1n2/3r4/PnPb2bR/K3b3/B1R1Q3/2Q2prR/1qBr1p2/1r1NkNR1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 b4 Qg5 bxa5 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Ke5 c4 Ke4 a4 g5 h4 f5 a6 d5 a7 b5 h6 d4 h5 g4 h7 f3 h6 g3 a5 f2 a6 f4 Nd2+ Ke3 Nh3 g2 Qa4 Qd5 Ka5 g1B c6 b4+ c5 b3 c7 Bf5 c8R b2 Bg2 b1R Be4 Qe6 Bc2 Nf6 Bb2 Rg8 h8Q Bd3 h7 Nd5 Qf6 Qd7 h8R Bd6 Rh6 Qb7 Rh2 Nb6 Nf1+ Ke4 e3 Kf3 e4 Ke2 e5 Ke1 e6 Rg3 e7 N8d7 e8B Bg6 Rc7 Rb8 a8R Nf8 Qc6 Rd8 Qe4+ Re3 Bc6 Rd7 B6a4 Be5 Rh1 Bh2 Ra3 Bd6 Rg1 Be5 Rc3 Bg3 c6 Qb8 Rc4 d3 Ng5 Bd6 Qc3+ d2 Ba3 Be5 Be7 Qb7 Bd8 Bh2 Qf5 Rg3 Ne4 f3 Rcc8 Nd5 Qg4 Qb2 Rc7 Nb6 Qe6 Rd4 Rch7 Rd7 Rh3 Bd6 R7h6 Be5 Qb3 d1R Nc3 R1d2 Nd1 Rg4 Qd3 Bf4 Qed5 Rg3 Qc3 Bd6 Qf5 Bfe5 Qe4+
r2RR3/nr1b1nRP/k3pB1b/4BQ1R/3b4/NN3r2/2QpP3/bKRQ2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 Ba6 dxc5 Bb7 Bh3 Bh6 fxg5 Bg7 g6 Bc8 g5 Bf8 Bg4 hxg4 Kd2 d5 b4 Kd7 h4 Kc7 c4 Kb7 Kc2 f5 b6 a5 b5 g3 g7 f4 h5 g2 h6 d4 g6 f3 h7 f2 Na3 f1R Bb2 a4 Rc1 d3+ Kb1 d2 Nf3 g1B Nd4 Qd5 Nb3 Ra6 c6+ Ka8 c7 Kb7 c5 Nc6 Rh5 Nd8 Bf6 Nh6 g8R Rf3 g7 Bd7 c8R Nc6 Re8 e6 Rd8 Be7 Rge8 Qg5 g8R Ra8 Rg6 Rb8 Rg7 Na7 c6+ Ka8 c7 Kb7 Rh1 Bd4 Rh5 Nf7 c8Q+ Ka8 Qcc2 Kb7 Rg6 Bf8 Rg8 Bh6 Rg7 Qg1 Qf5 Nc6 Qfc2 Ka8 b7+ Ka7 b6+ Ka6 Qf5 Na7 Qfc2 Ra8 b8B Rf8 b7 Rg8 Nc4 a3 Bbe5 Rh8 b8Q Rf8 Qf5 a2+ Kc2 a1B Qc7 Rb8 Na3 Rb7 Kb1 Ba4 Rd5 Bd7 Qcc2 Rg8 Re7 Ra8 Re8 Bc6 Rdd8 Ba4 Rhg5 Bd7 Rh5
1rn4b/1b2Nb1P/2p2Pn1/kQRB2N1/q2Q1p2/1nR5/1BKnN1QQ/r2Q4 b - - 0 1 illegal: No possible last move, all moves rejected
2r1R3/1NrRn2P/p1b2k1r/b1NRpQ1P/2r4B/q4n1B/Q4Rb1/3K2RN b - - 0 1 illegal: No possible last move
3n1B2/N1K3p1/1Q1B2Br/p2rN3/1Rbk4/bNbP3N/1Pn1R1q1/N1bQ1r2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kd4 a5 Kc5 Ke5 h4 g3 f4+ Ke4 f6 e5+ d6 c6 f7 g2 b6 Be7 f8N Be6 b7 Bf5 h5 Nf6 h6 Bh7 f5 Qc7 Nh3 g1R Nd7 Rd8 Na3 Ne8 f6 Rg6 f7 Bg8 f8B Nf6 h7 Ng4 h8N Rh6 Rh2 Ne3 Nf7 Nc2 Re2+ Kd3 Ra2 e4 Bg2 Qc8 Kb6 e3 Nfe5+ Kd4 d3 c5 Be4 c4 Bg6 c3 Nc5 Qg4 d7 Nc6 b8Q Qg2 Kc7 Bc4 Qb6 Rab8 Bd2 Ra8 Be1 Rab8 Bg3 Ra8 Rd2 e2 Bh2 e1B Re2 N2b4 Bf4 c2 Bh2 c1B Nc2+ Kd5 Ra1 Bc3 Ra4 Ra6 Na1 Nc2 Rb4 Kd4 Be8 Rf6 Bg6 Rf1 Bg3 Rb8 d8N Rba8 Ndb7 Nd8 Nd6 Rb8 Bh2 Rba8 Nc8 Rb8 Qe6 Rb5 Na7 Rd6 Qf6 Rd5 Qa6 Rb6 Bg3 Re6 Qb6 Red6 Ned7 Re6 Bd6 Ref6 Ne5 Re6 Be4 Rh6 Bg6 Rf4 Ra4 Bg5 Bde7 Bb4 Nb7+ Bc5 Bd6 Rf1 Qc6 Ba3 Nc5 Bcd2 Qb6 Bc3 Rb4 Bc1 Ncb3#
2B4B/q1B3pK/2np2n1/Q3QRB1/r3NQ1R/k3n1rb/1PPN2B1/bn1b4 b - - 0 1 illegal: Other
1k1B2B1/3B1pK1/Qbr4r/Pb4PB/qb5p/r1nRN1RQ/4n1B1/1b3QN1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kf3 c5 Kg4 Kc7+ Kh5 b5 d4 b3 g4 h6 e4 c4 a4 b2 a5 b4 d6+ Kb7 d7 b3 d5 c3 g6 c2 d6 Nc6 g7 Ra6 e6 Nd4 e5 Rb6 e7 Ka8 e8B Ne2 e6 Kb7 e7 Ka8 Na3 b1B Bg2+ Rb7 Rh3 b2 Bg5 c1B Qf1 Bf5 Rd3 b1R Nc2 Rb2 Raa3 Rb3 Ne3 Kb8 Bh4 Qb6 d8Q Qb4 d7 Qa4 Qb6 Bb2 d8Q Bd4 Qf6 Bb6 Bd7 Rc7 e8B Ne7 g8B Nd5 Qde7 Rc5 Qee6 Ndc3 Bb5 Be7 Bed7 Ba6 Bbc6 Rh7 Bcf3 Bb5 Qh8 Bf8 Bd8 Rc6 g5 Bb4 Qhf6 Be4 Qh3 Rh8 Rd4 Bc2 Rg4 Bb1 Rg3 Rb2 Rb3 Ra2 Qg6 Ra3 Qge6 B5d3 Qc4 Rh7 Qa6 Bb5 Bfg4 Na2 Rd3 Nac3 Kh4 Rh8 Bh5 Rh7 Kg4 Rh8 Kf5 Rh7 Bhf3 h5 Ke5 h4 Bh5 Rc4 Kf6 Rh6+ Kg7 Rc7 Be7 Rcc6 Bd8
2bQ4/1r2P3/rr1N3K/RN2bBQp/k3n3/3Np1P1/N1b1bB2/1RBNq2n b - - 0 1 illegal: No possible last move
2qQ2NQ/1Nn1p3/RN2n2b/2pb3P/K3PR2/2bN4/1Rr2nb1/2NBrkB1 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 h4 Kd7 e4 Kd6 b4 Ke5 d4+ Kd6 Kd2 c5 Kc3 a5 Kb3 f5 b6 g3 g6 f4 g7 g2 b7 f3 b5 f2 b6 Rh6 h5 Qe8 Ne2 g1N Na3 Nh3 Be3 Be6 Nc2 Rg6 Nb4 Nc6 b8R Rg2 b7 Qc8 Nd3 Nf6 g8N Nd8 Ka4 Ne8 Nec1 Nc7 Be2 f1B Bg1 Nf2 Rh4 Bh6 Rf4 Bf7 Qb3 Nde6 Qc3 Rh2 Ra2 Bg2 Bd1 Ra6 Ra8 Rb6 b8N Rb1 Nd7 Ra1 Ka3 a4 Nb6 Rb1 Ra6 Ra1 Kb2 a3+ Kb3 Rb1+ Rb2 a2 Ka4 a1B Rb5 Rb2 Rb4 Rc2 Rb2 Rh1 Qb4 Bh3 Qb5 Bg2 Qe8 Rh3 Qf8 Re3 Qg7 Re1 Qh8 Ne8 Rb4 Bc3 Rb2 Kc7 d6+ Kc6 d7 N8c7 d8N+ Kd6 Nb7+ Kc6 Kb3 Kb5 Nf6 Bg8 d5 Bf7 d6 Bg8 Na8 Bf7 Ka3+ Kc4 d7 Kd4 d8Q+ Ke3 Ng8 Kd2 Na2 Ke3 Ka4 Kd2 Bg4 Ke3 Nb6 Kd2 Bf5 Ke2 Nac1+ Kf1 Bh3 Ng7 Bf5 Bd5 Bg4 Nge6 Bd1
3b4/B1BQpR2/3n1rPR/qBBrP1B1/2rQkbp1/4rn1N/7N/nK1R4 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 axb5 f6 cxd5 Bf5 h4 Bg6 h5 f5 hxg6 fxg4 f4 Kd7 e4 Kd6 b4 h5 d4 a5 Kd2 c5 Kc2 a4 f5 h4 f6 a3 b6 h3 b7 c4 b5 g3 b6 g2 f7 g4 Qd3 h2 Nh3 g1B Nd2 a2 Nf3 c3 Bg5 Nd7 Rd1 a1N+ Kb1 Bh6 f8R Ra5 Rf7 Ngf6 b8B+ Qc7 b7 Rf8 Qb5 Ne8 Ba7 Ne5 b8B Bf2 Bb6 Be1 B8a7 c2+ Kb2 c1R Qd3 Rc2+ Kb1 Rc4 Bc5+ Kd7 d6 Kc6 d7 Nd6 d8B Bc3 Ba3 Rd5 B3c5 Qa5 Bc7 Bb4 Rg7 Rf6 Rf7 Qa4 Qe3 Ba5 Qf4 Bb6 Qf5 Qa5 Qe6 Nd3 e5 Ne1 Qd7+ Kb7 Rg1 h1R Nh2 Nf3 Rg2 Rg1 Re2 Rg3 Ree1 Rc3 Bb5 Re3 Rh1 Rg2 Bh4 Bf4 Bg5 Rd2 Ba3 Rc5 d5 Rc4 Bc5 Nc8 d6 Rd5 Bd8+ Bc7 Qf5 Bb6 d7 Nd6 Qd3 Bc7 Qd4 Bb6 Ba6+ Kc6 Bc7 Re4 d8Q Re2 Qc8 Re3 Bcb8+ Bc7 Qe6 Bd8 Bc7 Ne1 Qc8 Nf3 Qb7+ Kd7 Bb5+ Ke6 Rh7 Kf5 Rh6 Rec3 Rhf1 Rd3 Qc6 Re3 Qd7+ Re6 Rfe1 Nh4 Qc3 Ke4 Rf1 Bg3 Rf8 Rf6 Rf7 Bf4 Qb2 Nf3 Qd4+
1Qb4B/n1Nrp1b1/2P1p1B1/4NR2/4Nn1n/KP5N/bRr1kN2/Bq1Q1n2 b - - 0 1 legal: proof: e4 c5 d4 h5 dxc5 b5 a4 h4 axb5 h3 e5 Nh6 e6 fxe6 gxh3 Na6 h4 Nb8 h5 Ng8 Kd2 Kf7 Kc3 Kf6 Kb4 Kf5 f4 Ke4 c4 d5 h4 g5 c6 a5+ Ka3 a4 f5 g4 c5 d4 h6 g3 h7 d3 b6 g2 h5 d2 f6 Ke3 c7 Qd6 b3 Bg7 f7 Qd3 f8N Ra7 h6 Qc4 b7 Qf4 Bd3 Qf1 Nd7 Nc6 b8N Nf6 Bg6 Nd5 Bb2 Nf4 Nh3 g1N Ne5 Nf3 Rh2 Nh4 Na6 Rd8 h8Q Rd7 h7 Qh1 Qc2 d1B Nc3 Bh5 Rd2 Qb1 Ne4 Bd1 Qc1 Bc2 Nef2 Rb7 Rd5+ Ke2 Ra2 Na7 Ba1 Rb6 Rb2 Rc6 Kb4 a3 Qd1+ Ke3 Qf8 a2 h8B Bd3 Ka3 Bf5 Nf3 Bd3 Rf5 Bc2 Qg1 Ke2 Ne5 Bb7 c8N Qc1 Nd1 Kd2 Nd6 Rcc7 Qa8 Bc8 Nf3+ Kd3 Qg4 Bb1 Ndf2+ Ke3 Qb8 Qf1 Rc2 Rc6 Bc3 a1N Ne5 Ba2 Rd2 Qb1 Qd1 Rcc7 Nde4 Nc2+ Ka4 Rc6 Ba1 Rcc7 Nf7 Rc6 Re2+ Kf3 Nc7 Ne3 Ka3 Nf1 Rb2+ Ke3 Qc2 Kf3 Ne5+ Ke3 Nd2 Ke2 Nde4+ Rd2 Qc1 Rd6 c6 Rc2 Nf7 Rd1 Ne5 Rd7 Qd1+
3n1b2/1RrP2NR/b2Q2pq/rp2N3/B1Pkb3/5Q2/Q1nB2rR/1bK1RR2 b - - 0 1 illegal: No proof kernel
2br4/N2p4/BQr1bRK1/3R2P1/p2rP2b/1Q1Nkn2/2qBB2n/1rBB2R1 b - - 0 1 illegal: No possible last move, all moves rejected
8/N1pn2Q1/n1PnR1Q1/1p5q/rR3R2/2RPr3/BN1K1Qbk/B1nR2bb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 axb4 e4 Nc6 exd5 Nb8 c4 Ke7 h4 b5 a4 g5 h6 f5 d6+ Ke6 h7 f4 c5 Kf5 h5 g4 a5 g3 e6 b3 a6 f3 d7 Kg4 a7 b2 h6 g2 e7 Kg3 e8Q Qf6 d8R Bg4 Ra6 Qf5 Qg6 Qe4+ Qe2 Qc6 Rh4 Qe6 Nc3 b1B Bb2 Nc6 Ba1 Qe8 Nd1 Nb4 Nb2 Nf6 Re6 f2+ Kd1 Bd6 Nf3 g1N Nd4 Nd7 Nc6 Na6 Bh3 Rf8 h8R f1N h7 Rf3 Rf8 Re3 h8Q Be4 Qhg7 Bg2 Rf4 Kh2 Rb4 Bh5 Rhf4 Ng3 Qf3 N1e2 Qf2 Nc1+ Bg4 Rc8 a8R Nf5 Na7 Rb8 c6 Bc5 Bf3 Nd6 Kc2 Bg4 Bd5 Bf3 Ba2 Rb7 d3 Qh8 Rdf8 Qh5 Kd2 Rb8 R8f5 Rh8 Rae8 Bb6 R8e7 Ra8 Rc5 Bd5 Qe1 Bh1 Rc3 Bdg2 Ref7 Rg3 Rf1 Bg1 R7f4 Re3 Qf2 Nac5 Nc8 Ra4 Na7 Na6 Rd1
2n4n/RP1K3b/N3Bk2/r2Brb2/pB1RQ2n/PN4n1/pqQ3N1/4NN1r b - - 0 1 illegal: No proof kernel
K2n1rQ1/Rp3bb1/4N1Pr/1p1RBb2/r1kP4/4Q1B1/1NBB1b2/n3q1BQ b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 a6 h4 Nf6 hxg5 Ng8 b4 Nd7 b5 axb5 Rh5 Nb8 Rh2 Qd6 Rh1 Qd8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 h4 a4 e6 f4 h3 g6 h2 g7 c6 f6 Rh3 g5 Qe7 f5 Qf7 a5 Ne7 g8Q Re3 g6 Qh7 f7 Qh8+ f6 Bh6 f8B Rf3 a6 Bg7 a7 Rf5 Nh3 Rh5 Bd3 Na6 Nc3 Nc5 Nf4 Bd7 Na4 Rh6 Bc2 Re8 Rg1 h1B a8Q Bc8 Rg5 e5+ Kc3 e4 Kd4 e3 Nb2 e2 Ra7 e1B Ne6 Bd7 d3 Be4 Bd2 Bf5 Qa1 Bg3 Qh1 Rd8 Qc8 Be8 Rh5 Bf7 Qb8+ Kd7 Qe5 Bf2+ Qe3 Nb3+ Ke5 c5 d6 Nc6+ Kd5 Be8 f7 c4 d4 Na1 Kc5 c3 Kb6 Rc8 Be7 Nd8 f8B Ra8 Bh4 Bf7 Bg3 Rc8 Be7 Rc4 Bf6 Ra4 Bfe5 Qh7 Bb1 c2 Bh2 c1R Bg1 Rc8 Bc2 Nc6 Bg3 Rf8 Be5 Nd8 Bg3 Ke8 d7+ Ke7 Kc7 Kf6 Kb8 Ke7 Ka8 Qh8 Nf4+ Kd6 Ne6+ Be5 Qh3 Kd5 Qh4 Qf6 Qh2 Qh4 Qh1+ Qe4 Rg5 Nc6+ d8B Bg7 Nd1 Kc4 Rh5 Nb8 Bdc7 Nc6+ Bb8 Nd8 Bbd6 Bh3 Rd5 Bf5 Bb8 Qh4 Bbe5 Qe4 Qf4 Qe2 Qe3 Qe1 Nb2#
Bb2qnb1/pb1N3r/1B2b3/1R1n1QPk/2R4R/7K/R1pQ1PNn/3R2rB b - - 0 1 illegal: No proof kernel
2B2qbK/p2bB1Q1/3br1P1/R1b3P1/2QR4/3NB1Bp/3n1nNk/r2B1Rn1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 h5 g4 c5 d4 h4 b4 f3 g6 f2 b6 h3 b7 f6 g5 c4 b5 c3 b6 c2 Na3 Nh6 Nf3 Rg8 Ne5 Nf5 Be3 c1B Qd3 Bg7 Nc2 Qe7 Qc4 Nh6 Ra5 Ng4 Ne1 Nd7 Kf5 Nh2 N5d3 Bh6 Ng2 Qf8 b8Q+ Ke7 b7 Nf3 Rg1 Ba3 Qbc7 Bc5 b8B Bd6 Rh1 Ng1 Qb7 Bc5 Bg3 Rb8 Bh4 Kd6 Qb2 Rb4 Qa1 Rb1 Qac3 Kc7 d6+ Kc6 Qb2 Ne5+ d7 Kd6 d5 Ra1 Qbd4 Ng4 Qdc3 Bb7 d8B Bc6 Qb2 Rg7 Qb7 Re7 Qb2 Re6 Be7+ Kd7 d6 Ba4 Qe5 Kc6 d7 Bb3 Kf4 f5 d8R Ba4 Qed4 Kc7 Qg7 Bd7 Bd2 Kc6 e4 Kc7 Be2 f1B e5 Nf2 Be3 Kc6 Qc3 Kd5 Bd1 Be2 Nc1 Bc4 Nd3 Nf3 Rf1 Ng1 Kg3 Ke4 Qc2 Rd6 Qc3 Bg8 e6 Bd4 Qc4 f4+ Kh2 f3 Kg3 Nh1+ Kg4 f2 Kh5 Rc6 Ba4 Kf3 Bb3 Bc5 Ba4 Be8 Rd4 Rb6 Bd7 Bd6 Bc8 Bd7 Bf6 Bc5 e7 Re6 e8B Bd6 Be7 Bc5 Rb1 f1N Re1 Nd2 Rf1+ Nf2 Bf7 Re4 Bd5 Bd6 Bc6 Bc5 Ba4 Re6 Bd1+ Ne2 Qh8 Bg7 Qh6 Be5 Qg7 Bed6 Kh6 Bf7 Bc2 Ng1 Kh7 Bg8+ Kh8 Bc6 Ngf4 Bd7 Bd1+ Ne2 Nh5 Kg2 Nhf4+ Kh2 Ng2 Ng1 Bg3+
5K2/R1bbBn1N/n7/4NrQ1/2PPB3/kNn1q3/p1R1Rr1p/2NnqQN1 b - - 0 1 illegal: No proof kernel
1r6/2q3R1/1NN1kqR1/4nbp1/2p2QPP/NrQ1N1bK/1QrnB3/5rBN b - - 0 1 legal: proof: e4 b5 a4 d5 axb5 h5 c4 f5 exf5 Nf6 cxd5 Ng8 g4 h4 Qf3 Qd6 Qc3 Qd8 Qg3 hxg3 b4 Kd7 f4 a5 d4 e5 f6 c5 d6 g5 b6 g2 Kf2 c4 Kg3 e4 f5 e3 d5 e2 b7 e1R f7 a4 b5 a3 b6 a2 f6 Be7 f8Q Re2 f7 Ra6 Be3 Rf2 Na3 Rf4 Ne2 Nc6 b8Q Qc7 b7 Rh6 Qg7 Nd8 f8Q Rc6 Bg1 Rh8 Qc3 Rf2 Qf4 Nh6 Kh3 Rf8 Ng3 Nhf7 Be2 Ne6 Rd1 Ke8 d7+ Kd8 Rb1 a1Q Rb6 Bf6 Ra6 Ke7 d8N Rc5 d6+ Kd7 Nc6 Rb5 Nd4 Nc5 Ndc2 Rb3 Ne3 Ne4 Ra7 Ke6 d7 Nd2 d8N+ Ke7 Ra6 Be5 Rg6 Bf5 Nc6+ Kd7 Rg7 Bd6 Rg6 Ne5 Rg7+ Ke6 Rg6+ Rf6 Qh8 Qb2 b8N Qa1 Rg7 Rf8 Nd7 Rfb8 Nb6 Rf1 Bf2 Rc1 Rd1 g1R Nh1 Rf1 Bg1 Nb1 Rd5 Nd2 Ra5 Rc2 Ra7 Qe7 Rg6+ Qf6 Rag7 Bc7 Nb1 Qa5 Na3 Bd6 Kg3 Qa7 h4 Qc7 Kh3 Nd3 Qfd4 Bg3 Qf4 Ne5 Qf8 Rfc1 Qfb4 Rcb1 Qb2 Rf1 Q4c3
5Qb1/1RBb4/3nn2R/N4P2/qBB2q1r/b1B1b1rp/KpBP2k1/1Q1Q2N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 f4 c5 g4 e5 g6+ Kf6 g7 b5 d6 h5 d7 h4 a5 h3 a6 c4 a7 e4 Be2 b3 Nf3 c3 Bf1 c2 Ng1 b2 Bd3 e3 Na3 b1B Nc4 e2 Na5 Nc6 Bb2+ Nd4 Bc3 c1B Bc2 Ne7 g8B b4 Bc4 Qc7 d8B b3 Ra2 Qd7 Bc7 Ba3 Ra1 Rb8 a8Q Rh4 Qe4 Qa4 Qd3 Ba2 g5+ Kg7 g6 Kh6 g7 Kh5 g8Q b2 f6 Bd7 f5 Rb3 f7 Bh6 f8B Nc8 Bfb4 Ne6 Qf8 Kg4 Rh2 Nd6 Rg2+ Kf4 Rg6 Bg5 Qe4+ Kg3 Rh6 Kh2 Kf2 e1Q+ Kf3 Qg3+ Ke2 Qe5 Kd3 Qf4 Qee1 Nc8 Qb1 Kg2 Qed1 Nd6 Bb5 Qg4 Nb7 Nf4+ Kd4 Qa5 Kc5 Qa8 Be5 Rg3 Bc3 Bg8 Be2 Ne6+ Kd5 Ne4 Kc4 Nd6+ Kb3 Be3 Bc4 Qg5 Bc5 Bb4 Ra7 Ba3 B5b4 Qf4 Ka2 Qc8 Nc5 Qa8 Rb7 Qa6 Nb3 Qa4 Na5
4q1B1/2R3N1/3BBQbk/R2PQ2p/1N1r1n2/1bn1PKb1/1R1B2p1/1B2qbr1 b - - 0 1 illegal: No proof kernel
rBbR1RR1/1rQq1k1B/1b1Q4/1P2Pb1K/N1Rp1p1n/Q4N2/b1n5/1R5q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 a5 Kf3 f5 e4 h5 g4 d5 c4 a4 b4 a3 e6 a2 b6 h4 b7 h3 b5 h2 g6 d3 c5 d4 e7 d2 g7 Qc7 g5 Rh6 g6 Qa5 c6 Nd7 b8Q Qa4 c7 Rh8 Qb3 Nh6 g8R Nf6 g7 Rh7 Qa3 Qa7 Nc3 Nfg4 Rb1 a1Q Na4 Ne3 Bd3 Kf7 e8R d1B+ Kg3 Bf3 Kh4 Bg4 Nf3 Nc2 Bf4 Bc5 Rhc1 h1B Qb6 Bg2 Qd6 Bb6 Bh2 B4h3 Kh5 Qb7 Be5 f4 Rd8 Qd5 Rge8 Bhf5 g8R Rg7 Nh4 Bgh3 Nf3 Bce6 c8Q Rh7 Qdc6 Qd7 Bb8 Ba2 e5 Rg7 Qcd6 Rh7 Rb4 Rg7 Rcb1 Rh7 R1b2 Qh1 Rb1 Bfg4+ Kg5 Qb7 Ba7 Nf5 Qc1 Nh4 Qa3 Bd7 Qcc6 Bc8 Rc4 Rg7+ Kh6 Qe7 Bh7 Bhf5 Bb8 Qc7 Qdb4 Qe7 Qcc5 Ke6 Kh5 Rf7 Ref8 Qb7 Rfe8+ Re7 Qc6+ Kf7 Qbd6 Qc7 Qcd7 Qc6 Qa7 Rc7 Qb7 Qd7 Qbc6 Rca7 Qcc7 Rb7 Ref8#
3RqnB1/4R3/1qQPb3/2NRr3/1NKPQp1n/BQR3p1/4rRb1/b1b4k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 Ke2 Ke5 Kd3 g5 b4 a5 d6 f5 b6 c5 b5 a4 b7 g4 h6 a3 h5 g3 b6 a2 h7 f3 h6 Kf4 e5 f2 e6 Qh4 e7 Nd7 b8R Qh3 e8R Ndf6 b7 Ne7 Qe2 Qg2 Nc3 Ra6 Nf3 Be6 Rbd8 Bg7 b8Q Ng6 Ng5 Ra5 Rh2 Nh4 Re7 Qa8 Nge4 Nd7 Ba3 Nf8 Rd1 a1Q Qb3 Qb2 Na2 Qc6 Bg2 f1B Nb4 Qe8 Bf3 Bc3 Rf2 Bg2 Rc8 Rg8 h8Q Rg6 h7 Rh6 Qe1 c4+ Ke2 Bd4 Nc5 c3 Kd3 c2 Bd5+ Kg4 Bc4 Kh3 Qe4 Kh2 Qf6 c1B h8R f4 Qf7 Bd7 Qfd5 Be6 Qc6 Rh5 Bd5 Re5 Kc4 Qb1 Rd8 Ba1 d4 Ra6 Rd3 Kh1 Rh5 Ra7 Rc3 Ra8 Bb2 Ra2 Ba3 Re2 Rg5 Qa2 Bb2 Qa7 Ba3 Bd7 Bg8 Qb6 Reg7 Re7 Rd5 Re5 Rf7 Be6 Re7
qB4nR/brN3b1/3PR1n1/1rbNQ1R1/1pb1pP2/R1N3Q1/2q5/RB3k1K b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 d4 Kf6 a4 e5 a5 g5 h6 b5 d6 c5 d5 c4 a6 g4 d7 e4 a7 Ke5 h7 b3 f6 g3 h5 g2 h6 b4 f7 b2 Nh3 g1B Qf3 Kd4 Bf4 c3 Ra3 c2 Qg3 c1B Bd3 Qh4 Kf1 Qg5 Kg2 Qh4 d8R Be3 Nc3 b1Q Re8 Nd7 Re6 Rb8 a8N Qc2 Nc7 Bg7 f8R Rb7 Rf5 Qd8 Rg5 Nf8 Bd6 Ng6 Nf4 Qd1 Bb1 Qc2 Be5+ Kc4 Bd6 Ba7 Be5 Bd7 Bd6 Qa8 Be5 Bh2 Rg1 Ba4 Kh1 Bb3 Re1 Bg1 f3 N8e7 Rd1 Rg8 h8Q Bgc5 h7 Rgb8 Qe8 Rb5 h8R Ng8 Qe7 R8b7 Qf6 R7b6 Bd6 Rb7 Qe5 Ba2 Ne8 Qd2 Bc2 N8e7 Ra1 Ng8 Bb1 Qc2 Bb8 Bb3 d6 Ba2 Ng2 Kd3 Nc7 Bc4 f4+ Kd2 Ne3 Kd3 Ncd1+ Ke2 Ned5 Kf1 N1c3
q2n3B/N2qbNK1/3P4/1p2Q2Q/2pPN1BQ/5rq1/1n1Rb1r1/1kRQq2Q b - - 0 1 illegal: No possible last move, all moves rejected
4N1nB/1qRK4/N2p1q2/5QB1/r1NP1n2/Bk2NPQ1/r1pRN1bb/3r2r1 b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 b5 cxb5 Bb7 g4 Bc8 gxh5 a6 b4 Nh6 b6 Ng4 b5 Nf6 b7 Ng8 b6 Nc6 Be2 Nb8 Bb5 axb5 Ke2 Kf7 Ke3 g5 Ke4 c5 Kd5 e5 a4 c4 h4 c3 d4 b4 f3 g4 a5 b3 f6 g3 a6 g2 h6 c2 h5 e4 a7 b2 h7 e3 h6 e2 Rh2 e1Q Nd2 b1R Ne2 g1R Nf1 Qf2 Ne3 Rb4 Qd3 Nc6 b8Q Na5 b7 Rb2 Qf5 Nb3 Qg3 Qe1 b8N Ra2 Na6 Nc5 Rg2 Bg7 Kd6 Nd3 Rb1 Qd2 Rb7 Nf4 Rc7 Qd1 Bd2 Qb1 Bc1 Qb7 Bd2 Rb8 a8N Rd1 Nb6 Ra8 Nbc4 Rg1 Nc5 R8a4 Na6 Bf8+ Ke5 Bc5 Rf2 Ba7 Kd6 Bb8 Bc1 Kf8 f7 Qf6+ Kc5 Ke7 f8B+ Ke8 Ba3 Kf7 Be7 Rd1 Qh5+ Ke6 Rg2 Qg7 Bg5 Qf6 Rf2 Ne7 Rh2 Rg8 h8N Rg7 h7 Ng8 Nf7 Rg6 h8B Rg7 Bh4 Rg4 Qe1 Rg1 Qg3 Qa8 Nfd6 Nh6 Nb2 Raa1 Qgg5 Ra2 Ne8 Ng2 Nc3 Ng8 Rb7 Bg3 Rc7 d6+ Kb5 Nf4 Rd2 Bh2 Qg3 Bd7+ Kb6 Bb5 Qc5 Bf1 Bg5 Bg2 Ne2 Qd5 Qb5 Qb3 Kb7 Qb4 Kc8 Qb3 Ng4 Qb4 Qd3 Kd5 Kd7 Qb8 Ne5 Qb7 Qf5 Rdf1 Nd1 Re1 Nc6+ Kc4 Ne3+ Kb3 Ne5 Rd1 N5c4
1KN2rn1/BB2N1R1/3p1kbP/2rnnQ2/1QRP1Q1p/1Q1b2Q1/5n2/2R1qq2 b - - 0 1 illegal: No possible last move, all moves rejected
q3r3/R3NQ2/P2n1N1n/2P1k1nR/1pN5/2q1p3/bbBr3N/Q1BR1KNn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 f4 Kf6 h4 b5 a4 d5 h6 g5 h5 e5 h7 b3 c6 b2 c7 d4 c5 d3 h6 e4 a5 e3 Na3 b1Q Nc4 Be6 c8N b4 Ne7 g4 a6 g3 Rh5 g2 Qa4 Kf7 f6 Nc6 f5 Nd4 Be2 Qe8 Bd1 Bg7 Bc2 Qb3 Rb1 Nb5 Qa1 d2+ Ke2 Kf8 f7 d1N Ke1 Bb2 Ke2 Nf6 Ke1 Rg8 h8R Nd6 h7 Kg7 f8N Ng4 Nd7 Ndf2 Nf6 Nh6 Ng4 Qc8 Nh2 Re8 f6+ Kf7 Rg8 Nh1 h8Q Qc3+ Ke2 Bd5 Qg7+ Ke6 f7 Ra7 Qf8 Qa8 Rg7 Rd7 Qg8 Kf6 f8N Bf7 Nh7+ Ke6 Nh3 g1N+ Kf1 Nf3 Ng1 Ng5 Nf6 Rdd8 Bd2 Rd7 Rd1 Rdd8 Bc1 Rd7 Nb6 Ke5 Qf8 Bd5 Qf7 Ba2 Nc4+ Kf4 Qf8 Nc8 Nf5 Rd2 Ra7 Nd6 Qf7 Qe4 Na5 Ke5 Ne7 Qa8 Nc4+
bB1bq1r1/1N3BQ1/P1p2Q1R/N3qqRK/nn3NBN/3p4/N1P3q1/2k1r3 b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 e5 dxe5 f5 exf5 Be7 gxh5 Bf8 Ke2 Kf7 Kf3 g5 Kg4 b5 f4 d5 a4 d4 h4 c6 h6 d3 a5 b3 e6+ Kf6 e7 b2 e8B b4 a6 b3 h7 Nh6+ Kh5 g4 Nc3 b1Q Bf7 g3 Be2 g2 Nh3 g1Q Qf1 b2 Ra5 Qg8 Bg4 Ke7 f6+ Kd6 f5 Qa2 Nf4 b1Q Be3 Qd7 Ba7 Qe1 Qg1 Qd8 Rh3 Nd7 Bb8+ Qc7 Rc5 Qg7 Re5 Rg8 h8N Qc4 Nhg6 Qce4 Rc5 Q1e2 Ne5 Bb7 Ra5 Nc5 Nc4+ Kd7 Rb5 Be7 Na5 Kd6 Bf3 Ra7 Be6 Ke5 f7 Qh8 f8N Bg5 f6 Qhh7 f7 Qf2 N8g6+ Kd4 f8N Ke3 Nd7 Kd2 Bf7 Na4 Nc5 Nf5+ Kg4 Qfe1 Qd4 Bd8 Qf6 Qg7 h5 Ba8 h6 Ne7 h7 Nd5 h8Q Kc1 Rh6 Nb4 Kh5 Q1e2 Nh4 Qgg2 Bg4 Qe8 Qh7 Qc8 Qhh8 Re7 Ncb7 Qcd7 Rg5 Qf5 Qhg7 Qee4 Bd1 Qd4 Bf3 Re1 Bg4 Qde5 Na2+
2r4b/nQk2q2/p6Q/2BR1pQB/3BqN1P/1b3qq1/1NRPB1r1/K2n2B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 c5 b4 g5 d6 f5 b6 f3 b5 g4 e5 a6 b7 g3 b6 c4 h6 g2 e6+ Kc6 d7 c3 e7 c2 e8B Qe7+ Be2 Nf6 d8Q+ Nfd7 h7 Qg7 Ra5 Qg4 Qg5 Bb4 Bh5 Bc3 Rd5 Qb4 Nh3 Rg8 h8B Qe4 Na3 Nc5 Nf4 Be6 Nc4 Na4 Ba3 c1Q Bc5 Nb2 Bhd4 Qcc2 Qb1 Nd1 Nb2 Qb3 Qd3 Qa2 Qe3 Qc4 Rf1 g1Q Qh6 Qg6 Qg1 Qf7 Qgg5 Qcd3 Bg1 Bh8 Bgd4 Nd7 b8Q Ne5 b7 Rg7 Qa7 Rc8 b8B Qde3 Bc7 Qg1 B7b6 Qg3+ Bf2 Rg6 Bd4 Rg7 Bbc5 Rgg8 Qa8+ Kc7 Rg1 Nc6 Rh1 Qh2 Bg1 f2+ Kf1 Bd7 Qe7 Rg2 Qeg5 Qg3 Rh3 Qg4 Rg3 Na7 Rc3 Qg3 Rc2 Bc6 Bc4 Ne3+ Ke2 Ba4 Bd3 Nc4+ Kd1 Ne3+ Kc1 Nd1 Kb1 f1Q Bde2 Qff3 Ka1 Bb3 Qb7+
2N1qnQn/1nk3rP/2R4K/2BQbb2/1N1PR3/1p1B2r1/1B1R2p1/B1nq3B b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 c5 Kf4 b5 Kg5 e5+ f6 c4 f4 c3 a4 c2 h4 e4 a5 e3 d6 g6 f5 e2 a6 e1Q h6 b3 h7 b2 a7 b4 h5 b3 h6 Qe6 Ne2 Qe4 Ra6 Qc4 Rc6 Qc3 Rh4 Qc7 f7 Qe5 Ng3 Bg7 f8B Ne7 Nc3 b1N Na2 Qd8 Nb4 Na3 Ne4 Nc4 Bb2 c1N Bd3 Rg8 h8B Na5 h7 Nb7 Qf3 Bf6+ Kh6 g5 Rf4 g4 Bhg7 Bh4 f6 g3 f7 Ng6 Be7 Qe6 f8Q Bf6 Qh5 Qf7 Qd5 Qfe8 Bh8 Rg7 Qfg8 Be5 Rg4 Qa5 Bf8 Kd8 d7 Qa1 Nd6 Qb1 Rh4 Qc2 Re4 Qd1 Ra6 Kc7 d8R Bf5 Nc8 Nd7 Bc5 Rb8 a8B Ndf8 Ba1 Re7 Bf6 Nh8 Bg7 Bd6 Bgb2 Be5 Rdd6 Rg7 Na7 Rd8 Nc8 Rdd7 Ra2 Rg5 Rg6 Rg7 Rc6+ Kb8 Bb1 Rg4 d4 R4g5 Bd3 Rg4 Rf6 Kc7 Re2 Nd8 Qg2 Be6 Ba3 Qd7 Rad2 Qe8 B3b2 Bf5 Bf3 Nb7 Qd5 Re7 Re4 Rg8 Qg1 Rf7 Bh1 Rg4 Qe3 g2 Qg5 Rg3 Qg8 Rfg7 Rc6+
3b1n2/3Q2p1/B1NnB3/2p3nk/1PrRrBqq/N1N3b1/QKPB2n1/2RB4 b - - 0 1 legal: proof: d4 h5 a4 e5 dxe5 b5 axb5 Bc5 f4 Ke7 g4 hxg4 e3 Bb7 e4 Bd5 f5 Be6 fxe6 Ke8 Bc4 Be7 Bf1 Bf8 Kd2 a5 Kc3 d5 h4 c5 b4 f5 h5 a4 h6 a3 e7 Kf7 e8N Kg6 b6 d4+ Kb3 g3 b7 d3 h7 a2 e6 f4 e7 f3 e5 d2 e6 g2 Nd6 f2 Nc3 Nd7 b8B Nh6 e8B+ Nf7 Rh4 Be7 Nc4 Nf8 Bd7 Nd6 Nge2 g1N Na3 Nf3 Rd4 Ng5 Kb2 Kh5 Rb1 Bf6 e7 Ra6 Be6 a1B+ Ka2 Ra7 e8B+ Rf7 Bb5 Re7 Ba6 Re8 Bfh3 f1N Bhf5 Ne3 Bg4+ Kh6 Kb3 Ng2 Bc7 Be5 Bh5 Bg3 Bhg4 Rg8 h8Q+ Kg6 Qh3 Rh8 Qg1 d1Q Bd2 Qf6 Rc1 Rh4 Qf2 Qe7 Qf7+ Kh6 Bf3 Qd8 Qhf5 Rg4 Qd7 Kh5 Qd5 Qf6 Bb8 Qf4 Ka2 Qh1 Kb1 Qh4 Qa2 Qe4 Ncb5 Bb2 Na7 Bc3 Nc6 Re7 Rc4 Bf6 Rd4 Re8 Bc7 Bd8 Nc3 Qf5 Kb2 Re7 Bed5 Re4 Bd1 Qf3 Bb3 Rgf4 Be6 Qfg4 Rd3 Rc4 Rd4 Re4 Bb8 Ne8 Be5 Nd6 Bef4
2b2B2/4BPbb/Bp1P1r2/NR5b/B1qQ3n/2k1qR1N/2prnB2/1Q3K1R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 c5 g4 e5 d4 h5 g6+ Kf6 g7 b3 g5+ Kf7 a5 e4 a6 b2 f6 h4 a7 c4 f5 c3 d6 e3 d5 h3 d7 e2 d6 b6 Na3 b1B Be3 h2 Qd4 Rh4 Nc4 Rh6 Na5 Nc6 Nh3 Nge7 g8R Bg7 Ra3 Qc7 d8B Ng6 Be7 Nh4 Bf2 Be4 Rb3 Bf3 Re8 Bh5 Rb5 c2 Rh8 Rb8 a8Q Rg6 Qb2 Nd4 Qe4 Qc4 Qb1 Rb7 Qd3 Rc7 Qc3 Rc5 Qca1 Rd5 Rd8 Ne6 Qd4 Nf4 Rd7 Rh6 Rc7 Rg6 Rcc5 Rh6 Rb3 Rg6 Rcb5 Rh6 Rf3 Rg6 Qdb2 Rd2 Qd4 Rh6 Rg1 h1B g6+ Ke8 f7+ Kd7 f6 Ke6 f8B Bg2 Re3+ Be4 Rf3 Bf5 Rh1 Bd3 Be3 Be4 Kf2 e1Q+ Kg1 Qee2 Bf2 Qe3 Bd3 Ne2+ Kf1 Bh8 g7 Bh7 f7 Rg6 g8B Bg7 Be4 Rf6 Bc6 Bd3 Bh7 Be4 Rb3 Bd3 Ba4 Bf5 Qc3 Kd5 Rb5+ Ke4 Qe5+ Kd3 Qd5+ Kc3 Qc5 Bfe6 Be4 Bed7 Bb7 Bf5 Ba6 Bh7 Qd4+
1R6/B3p1n1/q5Nr/B1NBKb2/prP1R1rB/5Q1b/PN6/kQn1rqB1 b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 Bh6 gxf5 dxe4 Na3 g4 Nb1 Bg5 hxg5 Qc7 Bg2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 c4+ Kd4 c6 a5 g6 h5 f6 b5 g7 h4 f7 e3 f8B g3 c7 a4 Nf3+ Kc5 d4+ Kb4 d5 e2 d6 e1R d7 h3 Bg2 h2 Be3 Nc6 Ne5 Rb8 Bd5 g2 Ng6 g1Q Ba7 Nf6 g8N Rh3 Nc3 Ka3 Rb1 b4 Bh6 b3 Bg5 Ng4 Nf6 b2 Nfe4 Nh6 Nc5 Qe8 d8B Ba6 c8Q Rg3 Qf5 Bc8 Ba5 Nd4 f3 Ne2+ Ke5 Rb7 f4 Qb5 Qdc2 Qf2 Nd1 Qa6 Qce4 Qf1 Qf3+ Rb3 Q5d3 Rg2 f5 Nc1+ Be3 Rg1 f6 Nf5 f7 Ng7 Qdf5 Rg3 Rg1 Rg5 Rg4 h1R Rf4 Rh6 f8B Ne8 Bg7 Rb6 Bf6 Ng7 Ra1 b1B Rg4 Bd3 Rb1 Rb5 Rh4 Rg2 Q5e4 Bh3 Bg1 Rb8 Rf4 Rg4 Bh4 Rb3 Qee3 Bf5 Re4 Rc3 Rb8 Rb3 Bc3 Rb7 Qd3 Rb6 Ba5+ Rb3 Nf2 Kb2 Nd1+ Ka1 Nb2 Rb4 Qb1+
2Q2QQ1/bB1bp2K/1NPq1Qrp/P1q3Nb/2kB3Q/2r1RB2/6Rn/b5n1 b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 c5 hxg5 Nc6 dxc5 Nb8 Ke2 Kf7 Ke3 Ke6 Kf4 d5 a4 b5 g4 b4 c4 e3 c6 b3 g6 b2 Kg5 e2 f4 e1B g7 h6+ Kg6 d4 c7 d3 g5 d2 f5+ Kd6 c5+ Kd5 a6 Nf6 g8Q+ Be6 c8Q Ne4 a5 Nc3 c6 Bf2 a7 Nb5 f6 Na6 f7 Nb8 Rh3 Bd7 Be2 Nd4 Qg7 Rg8 Qa4 d1B Be3 Nf3 Ra2 Nh2 Nf3 Qb6 Qf4 Qc5 Kh7 Qd6 Qg6 Bg7 f8Q Bd4 Qh5 Rg6 Nc3+ Kc5 Nd5 b1Q Rd2 Qc2 Q4f6 Bg1 Rg3 Qc1 Rd3 Kc4 Rg2 Ba1 Bd4 Qca3 Qh4 Qac5 Ne1 Bf2 Bf3 Be2 Re3 Bg1 Be4 Bh5 Nf3 Be6 Rge2 Nd7 Rg2 Rb8 a8B Ne5 Bb7 Bf5 Q6h8 Bd7 Qhf6 Rg8 g6 Bf2 Ne1 Nef3 g7 Ng1 Bf3 Bde8 Ba8 Rb3 Bb7 Bd7 Nd3 Qb8 N3f4 Qbd6 Ne6 Ra3 Ng5 Rc3 Q8f7 Rd8 g8Q Rf8 Qgh8 Rg8 Qff8 Rg6 Qhg8 Rc2 Re6 Qb4 Bc3+ Bd4 Re3 Qa3 Bg4 Ba7 Bd4 Qac5 Bf3 Rc3 Nb6+
5QNq/K2pn2k/BB1Q4/bN2pq2/4r1R1/1b1PnRrB/1Q1Pq1q1/4BB2 b - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 f5 a4 fxe4 axb5 c6 Ra6 Qc7 Ra2 Qg3 Ra1 Qd3 cxd3 Bg7 Qa4 Bh6 Qd1 Bf8 Ke2 Kf7 Ke3 Kg6 Kd4 h5 Kc5 a5 Kb6 h4 g4 e3 f4 h3 b4 e6 f5+ Kh7 g6+ Kg7 g5 e2 Na3 e1Q Qc2 h2 Nh3 a4 Nf4 c5 Qb2+ Nf6 Nh5+ Kg8 g7 c4 Rg1 h1Q Rg4 Ne8 f6 c3 f7+ Kh7 g8B+ Kg6 Nf6 c2 Rb1 Be7 f8Q Qg2 Ra1 Ba6 Bf7+ Kf5 g6 Nc6 g7 Nd6 g8B Re8 Bh5 Qd1 Bgf7 Qdf3 Ng8 Qfe2 Rb1 Bf6 Ra1 Ne7 Ka7 Bc3 b6 Nc4 b7 Bb5 b8B Ne3 Bg3 Bc4 b5 Bb3 b6 Ba5 Nb5 a3 b7 a2 b8Q Rh7 Bf2 Rg7 Qd6 Rg6 Rb1 a1Q Be1 Rg7 Rd4 Rg3 Rg4 Qa4 Ra1 Qf4 Ra4 Qff2 Rgf4+ Kg5 Bg4 Qff3 Rad4 Qd5 Bh3 Qf5 Nh6 Kf6 Rf3 Kg5 Bg8 Kg6 Bf7+ Kh7 Ng8 e5 Bc4 Rc8 Rg4 Rc6 Bd5 Rc4 Bb7 Re4 Ba6 Qef2 Qa2 Qe2 Ba3 c1Q Qb2 Qc8 Bc5 Qe8 Bb6 Qeh5 Qc5 Qh4 Qb4 Qhf6 Qc5 Qh8 Qd6
N2rr3/1bRp1NQ1/2qP1R2/2rN1N2/1Bkp1N2/K1B1Q2n/P2Q3q/b1r4n b - - 0 1 legal: proof: e4 a5 d4 h5 g4 f5 exf5 a4 gxh5 c6 d5 a3 d6 Ra4 Bc4 Ra7 Bd5 cxd5 bxa3 Ra8 a4 Nf6 a5 Ng8 Kd2 Kf7 Kc3 b5 Kb4 e5 h4 g5 f4 e4 c4 e3 f6 Ke6 h6 g4 c5 e2 c6 e1R a6 g3 h5 g2 f5+ Ke5 h7 Bh6 f7 Qf8 c7 Qe8 f8Q Qd8 a7 Bg7 h6 Nf6 Nc3 Bb7 c8N Ng4 f6 Na6+ Ka3 Qc7 f7 Nb4 Nge2 g1Q Ne7 Nd3 Bd2 Ndf2 Qe8 Qh2 f8Q Nh3 Rc1 Rd8 a8N Ngf2 Rf1 Nh1 Qff7 Rg8 h8B Rf8 Qg6 Rf5 h7 Rh5 Rf7 Qc8 Nf4 Kd4 Qh6 Bf6 Bg7 Qc4 h8N b4+ Ka4 b3+ Ka3 Rhe5 Nf5+ Kc5 Qg5 b2 Qg3 b1R Qf8 Ree8 Qe3+ Bd4 Bf6 Rb4 Qg7 Rb5 Be5 Rf1 Rf6 Re1 Qde2 Rg1 Rc2 Rc1 Nf7 Ra5+ Na4+ Kb5 Bb4 Ba1 Q2d2 Qc5 Bb2 d4 Rc3 Qb6 Rc7 Qc6 B2c3 Kc4 Ng6 Rc5 N4b6+ Kb5 Nd5 Kc4 Ngf4
bBKN1qB1/1nP4P/4N1nn/n5q1/p2R1b1N/NN4BQ/rr2kR1p/Q7 b - - 0 1 illegal: No proof kernel
k1b4q/bp1QN1Nn/1bq1N1NQ/Qp2P3/5N2/PbB2B2/3r3n/K2R1Rr1 b - - 0 1 legal: proof: f4 d5 b4 h5 c4 e5 cxd5 h4 fxe5 a6 b5 axb5 g3 Ra3 gxh4 Ra7 h5 Ra8 h4 Kd7 d4 g5 Kd2 f5 Kc3 c5 Kb2 Kc7 e4 f4 h6 g4 e6 g3 a3 g2 h7 f3 e5 c4 d6+ Kc6 d7 f2 h5 Ra6 e7 Bg7 e8N Kb6 d5 Ka7 h6 Ka8 d6 Qf6 d8N Bf8 d7 Rd6 Bd2 Nc6 Nh3 g1B Nf4 Nd4 Nc3 Nf3 Be2 f1B Ng7 Nh2 Nde6 Ba7 Ncd5 c3+ Ka2 c2 d8Q c1Q Bf3 Be7 Qa5 Bd8 Ne7 Qc6 Bc3 Bb6 Qd3 Qf8 Rd1 Nf6 Ka1 Rg8 h8N Nh7 Nhg6 Be2 Qd5 Bc4 Rhf1 Bb3 Qd3 Rd7 Qd6 Qd8 Qc7 Rd2 Qd7 Nf6 h7 Qf8 h8Q Nh7 Ngh5 Qe8 Qf6 Rg7 Qg5 Qh8 Qh6 Rg8 Ngf8 Rg5 N8g6 Rg1 Nhg7
6Rb/1pn1Pq1b/1b2P1kr/3p2B1/1r1N1Bq1/2BK1Q2/2BQB1n1/Q1b1NR2 b - - 0 1 illegal: No proof kernel
1r4Rk/p7/1R2r1q1/1RQ4r/4BRbN/r1p1B1P1/n1PR1NQN/1q1n2bK b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 b4 Kf7 f4 Kg7 Kf2 c5 e6 d5 f6+ Kh6 b6 h3 e7 h2 e8R c4 b7 d4 b5 c3 b6 d3 f7 Kg7 f5 h5 f6+ Kh7 g3 h4 Kg2 d2 Re7 Bg4 Qf3 d1Q Ra4 Nc6 b8R Q8d6 b7 Nd4 Nh3 Nh6 Bd3+ Nhf5 Be3 Ne2 Rf4 Rg8 Nf2 Kh8 Nd2 Rg6 Be4 Nc1 Nf1 Na2 Rg1 h1R Nh2 Qb1 Rd1 Rh6 Rd2 Rh5 Qe2 Re1 Qf1 h3+ Kh1 Qe6 Rc7 Qe8 Qg1 Bg7 f8N Qg6 f7 Bd4 Re7 Nd6 Rd7 Nc4 Re7 Nb2 Rc7 Qh7 Qf1 Nd1 Ng6+ Kg7 Nh4 Qg6 Rd7 Ra5 Qg1 Ra3 Qf1 Re2 Qg2 Bb6 Re8 Bc5 Re6 Kh8 Rb6 Re8 b8R Rf8 N2f3 h2 Rb5 Rg8 f8Q Bb6 Qb4 Re8 Rbb7 Rb8 Rg7 Bc5 R7b6 Bd4 Qc5 Re1+ Qf1 Re2 Kg2 h1R Qg1 Rh3 Nh2 Re1 Kh1 Re2 Nf5 Rh5 Qg2 Ra5 Bc6 Qa1 Nd3 Qb1 Bf2 Be5 Nh4 Bd4 Bg1 Bf2 Bb7 Re6 Be4 Be1 Bd4 Bf2 Be3 Bg1 Nf2 Ra3 Rg8+
r3Nk1b/6B1/BQK3PB/3RRnB1/nq1b3p/1NQbp3/q3PRB1/1q2n3 b - - 0 1 illegal: No possible last move, all moves rejected
2bRqqB1/2K3b1/1r4P1/QQnN2qN/nRpn4/2Pk4/5B1p/2b1RRQR b - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 a4 f5 h4 b5 axb5 Ra6 Ra3 Rg6 Ra4 fxg4 Ra1 g3 Qd2 g4 Qd1 Rg5 hxg5 Bd6 Rh2 Bc5 Rh1 Bf8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 b4 c5 f4 h4 f5+ Kf7 Kd5 h3 e4 g2 b6 d6 b5 g3 b7 h2 f6 Kg6 b6 a4 f7 a3 e6 a2 e5 Kf5 g6 Na6 Kc6 Ke4 b8R d5 b7 d4 e7 d3 e8Q d2 e6 Qf6 Nh3 g1Q Nf4 g2 Qd8 Bg7 f8R Nh6 Qa5 Qe3 Nh5 g1Q Rd8 Nf5 Bc4 Qgg5 Qg1 Qf8 e7 d1N Bg8 c4 Bd2 Nc3 Be1 Nc5 Bf2 Nd4+ Kc7 N3a4 e8R+ Kf3 Re5 Ke2 Nc3+ Kd2 Rb1 a1B Rf1 Bb2 Nd5+ Ke2 c3 Bc1 Ree8 Kd3 Re7 Qef3 Ree1 Qe4 Ra8 Qee3 b8Q Qee8 Qbb5 Rh6 Qba6 Bf6 Kb8 Rh7 Ra7 Rc7 Rb7 Rc6 Rb4 Rb6+ Kc7 Bg7 Q6b5
3K2nb/P1Qn3R/b3k1Qb/R2q4/1qB1p1p1/1RB2R2/q1Q1N1Pr/R2n2N1 b - - 0 1 legal: proof: e4 d5 b4 a5 h4 axb4 c4 b5 cxd5 g5 Bd3 f5 exf5 g4 Bf1 Ra6 Nc3 Rg6 Nb1 Rg5 hxg5 Bg7 Be2 Bh6 Bf1 Bf8 Ke2 Kf7 Ke3 e5 Ke4 c5 f4 h5 a4 c4 d4 c3 a5 h4 d6 b3 Kd5 b4 d7 h3 f6 e4 f5 c2 a6 b2 a7 b3 Bd2 c1B Bc4 h2 Qc2 Rh3 Nc3 b1N Nce2 b2 Bc3 Qb6 d8R Nh6 g6+ Kg8 g7 Rh4 f7+ Kh7 f6 Kg6 g8Q+ Bg7 f8R Kf5 f7 Qa5+ Kd6 Qb4+ Kc7 Bh8 d5 Ba6 d6 Nd7 Rb8 Rh5 Qg7 Ng8 Kd8 Bh6 Re8 Qa4 Rb3 Qa2 Qf8 Rh4 Re5+ Kf6 Rd5+ Ke6 Qg7 Rh3 f8R Rh5 Bf6 Nc3 Qg6 b1Q Rf7 Qd1 Ra5+ Qd5 Rh7 Nd1 Bc3+ Ndf6 d7 Rh4 Nh3 Rh5 Rf1 h1Q Rf3 Qe1 Nhg1 Rh2 Kc7 Qd2 d8Q Qd4 Qg5 Nd7 Qg6+ Ngf6 Qc8 Qc5+ Kd8 Qb4 Qh5 Ng8 Qc7 Qb6 Qg5 Qb4 Qg6+
2Q2q1k/Kb4n1/3p1nr1/1R1Q4/BBpPRN2/7N/1B1nP1rq/1qBrBN2 b - - 0 1 legal: proof: b4 h5 f4 e5 a4 exf4 c4 b5 cxb5 h4 a5 h3 gxh3 Be7 h4 Bc5 h5 Bb6 axb6 Qg5 Bb2 Qe7 Bc1 Qd8 Kf2 Kf8 h4 c5 b7 f5 h6 a5 h7 g5 h5 Kg7 b6 a4 b5 c4 h6+ Kf6 Rh4 f3 Ke3 f4+ Kd4 g4 Kc5 a3 Bh3 Nc6 b8Q g3 b7 g2 b6 f2 d3 f1N Nd2 a2 Rb1 a1Q Rb5 f3 Re4 Ng3 Nf1 f2 Bf5 Ne5 Nh3 g1R Bg6 Qb1 Be8 Rg2 Qc7 Ne7 b8B Rg8 h8N Ng4 b7 Rg6 Kb6 Nef5 h7 Ra1 Ba7 Ng7 b8B Qe7 Qb7 Qe6+ Bd6 Qe5 Bb4 d6 Qd7 Bb7 Qc8 Ne3 Bd7 N3h5 Be1 Qh2 Bc6 R6g5 Ng6 R5g4 Ngf4 Rg6 h8B Kf7 Bd7 Nf6 Be8+ Kg8 Bb4 Nc2 Be1 Nd4 Qd2 Nb3 Qa5 Bd5 Ka6 Nd2 Bc5 Bc6 Bb4 Bb7+ Ka7 Kh7 Rc5 Kg8 Ba4+ Kh7 Ng3 f1Q Rb5 Qf3 Nf1 Qh5 Qe6 Qf5 Qd5 Qc8 Qc7 Qf8 Qc8 Qc2 Bca3 Rd1 Bb2 Qb1 d4 Ne6 Bg7 Kg8 Bh6 Kh8 Nh5 Ng7 Be3 Nf3 Bec1 Nd2 N5f4
1Qr2N1k/K1p1bNq1/2p1R3/3Bn3/NnB5/1nP1Q1B1/3Pr1NN/2q1Rq1r b - - 0 1 illegal: No proof kernel
1N1K2k1/3n2r1/Qn1P1pp1/QB2n1Q1/1Q3B2/1qN1q2R/rbqrNP2/3Q3R b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 e4 Kd7 d4 Qe8 e5 Rh7 d6 Ke6 d5+ Kf5 e6 Kf6 Ne2 Bd7 exd7 Qd8 Ng1 Rh8 Kd2 a5 Kd3 e5 Kc4 c5 b4 g3 h4 g2 b6 e4 Kb5 a4 h5 a3 b7 g6 h6 c4 h7 Kg7 Qd2 a2 Nf3 g1N Rh4 f6 Nc3 e3 Nd4 e2 Qg5 e1Q Nde2 Ra7 Rh3 Nf3 Bf4 Ne7 Rb1 Qc7 d8Q a1R d7 Ne5 Qc8 Kf7 d8Q Nbd7 b8N R1a2 Qa6 Qb7+ Qdb6 Rg8 h8Q Nc8 Qhh5 Rg7 d6 Kg8 Qhg4 Rd2 Qa5 Qf3 Qba6 Ncb6 Rc1 Qd1 Ra1 Qe3 Q4h5 Nf7 Kc6 Qb3 b5 Ra8 Kc7 Nfe5 Kd8 Ra7 Nd5 c3 Rd1 c2 Ndc3 c1Q Qhg4 Nbc4 b6 Qcc2 b7 Ra8 Ng3 Ncb6 Bb5 Rh7 Ra1 Bh6 Rah1 Re7 Qd1 Rg7 Nge2 Ra7 Nc6 Ra8+ b8Q Ra7 Qbc8 Ra8 Qb4 Ra7 Qaa1 Ra2 Qa6 Qee4 Ba4 Rd3 Qgg1 Ra3 Bh2 Bc1 Qg5 Bb2 Bf4 Qe3 Bb5 Ra5 Qaa3 Ra4 Qba5 Rd2 Q3b4 Ra2 Nb8
K3NR1n/5p1r/2k2nnR/Q1r1PN1p/r2NQ1N1/1Bb2r1P/r2N4/1q1QB3 b - - 0 1 illegal: No possible last move
2Q1b1R1/3rrR1k/rn1R2N1/qQ1r1b1K/4R1p1/4bpB1/P1BRr1P1/N4Q2 b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 g5 b4 axb4 h3 e5 fxe5 Nd7 h4 g4 Bb2 Ndf6 Ba3 Ne4 Bc1 Ng5 hxg5 Kd7 Na3 Ke7 Nb1 Ke8 Kf2 h5 Kg3 b5 Kh4 f5 e4 Kf7 d4 Kg7 d6 c5 d5 b3 e6 b4 e5 f4 e7 b2 e8R f3 d7 b3 e6 c4 e7 c3 g6 c2 d6 Ra6 Na3 b1R Qe1 b2 Ne2 Nf6 Bf4 c1R Bg3 Rc2 Nf4 Rd1 Bd3 b1B Qf1 Qa5 d8Q Bd7 Qc8 Re2 Bc2 Rd5 Rh3 Bf5 d7 Rh7 d8R Nd7 Rh1 Kh6 g7 Nb6 g8R Rf7 Ng6 Kh7 Kg5 h4 Kh5 h3 Rd6 h2 Red8 Bg7 e8Q Bd4 Qb5 Rd7 Rde8 Be3 Re4 Rb7 Bd3 Bc2 Rd1 Rd7 Rd2 Ba4 Nc2 Re7 Na1 Rd7 Qbc4 Re7 Bc2 Be8 Qb5 Rd7 Qf2 Re7 Rb1 Rd7 Qf1 h1R+ Bh4 Rg1 Bg3 Re7 Qf2 Rge1 Qf1 Rd1 Rb3 Rb1 Rbd3 Rb3 Rdd4 Rd3 Rf6 Rdd7 Rdd6 Rd5 Rf7+
N2rBbk1/R1B3Qp/2pQbnQ1/1qP1b3/1b5b/Q3K3/1RB1PrQ1/2N1q3 b - - 0 1 illegal: No possible last move, all moves rejected
3N1B2/RBPb4/2rq1rq1/1Nrrkn2/1R1p4/1pR1Q3/1PR1r1RK/Qn5Q b - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 f5 exf5 c5 d4 cxd4 a3 b4 Be3 b3 Bf4 e6 Bc1 Bb4+ axb4 Ba6 Qg4 Bb7 Qd1 Bc8 f4 Kf7 Kf2 Kf6 Kg2 g5 h4 d5 c4 a5 h6 g4 h7 e5 b5 a4 h5 e4 b6 a3 h6 e3 b7 d3 c5 d4 c6 d2 c7 a2 Ba6 g3 Nh3 e2 Rg1 e1Q Na3 Ne7 Nb5 Re8 h8R Qe5 h7 Nd7 b8R Nc6 Ng5 Qd6 Ne6 Rf8 Bb7 Qe8 Nd8 Nde5 Qe2 d1R Qe3 Qee6 Rg8 Qf7 h8Q+ Qg7 Qh5 Nc4 Qh1 Bd7 Rh8 Qg8 Rh2 Na3 Bd2 Rc1 Bb4 Qf7 Kh3 Ra5 Rc2 g2 Kh2 Nb1 Rc3 Kg7 f6+ Kg6 Rc2 Kf5 Bc5 Qe8 f7 Ne7 Rc3 Rc2 Rc1 Re2 R1c2 Kf6 Ba3 Nf5 Bb4 Rg8 f8Q+ Qf7 Qfe8 Rg6 Qeg1 Ra6 Qee3 Rc6 Qgc1 Rg5 Qcg1 Qg6 Qd1 Qe5 Bf8 Qd6 Qdg1 Re1 Qf1 g1R Rg2 Re2 Qe1 Ng3 f5 Rf1 Rc2 Na3 Rac1 a1R Rc3 Ra2 R1c2 Nb1 Ra8 Ra5 Ra7 Na3 Qa1 Nb1 Qf3 Ke5 f6 Rf5 f7 Rf6 Qf2 Nf5 Qfg1 Rf4 Qe3+ Re4 Bg7 Rc5 f8R Ra6 Rh8 Rac6 Bf8 Rd5 Rh3 Rcc5 Rc4 Rc6 Rb4 Rcc5 Qf3 R4e3 Qf2 Rec3 Rd3 R3c4 Rdc3 Rc6 Qf3 R4c5 Qe3+
2R4K/r3b2p/4n1b1/nQn1N1p1/2QR2P1/1B1RBq1k/b3bBP1/B1q1N2B b - - 0 1 illegal: Other
1B2bk2/1BP3qr/4N1n1/qqNR3R/2R1np2/4qP2/Q2pb1BK/bR1Q1R2 b - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 g5 hxg5 b5 axb5 Ra6 Rh4 Rd6 Rh6 cxd4 Rh1 d3 Qe2 d4 Qd1 Rd5 exd5 Bg7 Na3 Bh6 Nb1 Bf8 b4 f5 g4 e5 c4 h5 d6 h4 g6 e4 c5 e3 g7 h3 f3 e2 Kf2 h2 Kg2 e1Q d7+ Kf7 c6 d2 g5 d3 b6 a4 b7 a3 b5 a2 g6+ Ke7 b6 Qe5 Nh3 Qc3 Ng5 Qe8 d8R Rh6 Rd5 Bd7 Ne6 Nf6 g8Q Qa3 g7 Ne4 Nc3 Qa5 Na4 Rh7 Nac5 f4 c7 Nc6 b8R Qh5 b7 Be8 Ra8 Qf5 b8R Ne5 Rbb1 Ng6 Ra6 Qe5 Rc6 Qd4 Bb2 Qe3 Bd4 Qb5 Na6 Qa5 Rc4 Qb5 Nac5 Qa5 Qb3 d1B Qc2 Be2 Qd1 Nh4+ Kh3 d2 Bg2 Qb5 Rf1 Ng6+ Rh5 Qa6 Rb5 Qa5 Rab1 a1Q Qf7+ Kd6 g8B Bg7 Qf5 Ke7 Qd5 Qb3 Bg1 Q1c3 Bf7 Qe3 Qa8 Ba1 Bg8 Qac3 Qa2 Qg7 Ra5 Qb5 Bf7 Bd7 Be8 Bc6 Bd7 Kf7 Bc8 Be8 Bb7 Ke7 Ra8 Kf7 Rd8 Kg8 Rd5 h1Q+ Bh2 Qhg1 Bg3 Qec3 Bf2 Qca5 Bd4 Qe3 Kh2 Nf6 Nd7 Kf7 Ba7 Ne4 Bb8 Kg8 Ndc5 Kf7 Nd4 Kf8 Nde6+
N2R1n1r/1rBqBB2/1Q1p1K2/1QnPBp1r/n5k1/2n3RR/P2b1q2/5B1N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 b4 Qb3 Ba6 Qd1 a4 b3 Bb5 cxb5 axb3 Kf2 Ke7 Ke3 Ke6 Kf4 f5 h4 c5 e4 g6 d4 c4 h6 b2 b6 d6 h5 c3 h7 b3 h6 c2 d5+ Ke7 Kg5 Qe8 b7 Qd7 e6 Qc6 e5 Qa4 Ne2 Ra7 Na3 b1N Nc4 b2 Rh3 Nc3 Qd4 b1N Nb6 Qd7 Ng3 Na4 Na8 Nbc3 Qb6 Nf6 Nh1 Na6 b8B N6c5 Bc7 Rb7 Rb1 Bg7 Rb3 Bf8 Bf4 c1R Bg3 Rc2 Bh4 Rh2 Ra3 Ke8 e7 Kf7 e8B+ Ke7 e6 Bg7 Kf4 g5+ Kg3 g4 Kf4 g3 Kg5 g2 Bf7 g1Q+ Rg3 Rd8 h8B Qf2 h7 Bh6+ Kg6 Bg5 Bg7 Bf4 h8R Bd2 Bg5 Rdb8 Rd8 Rh5 Rh3 N3e4 Rag3 Nec3 Be3 Nh7 Be5 Qg1 Be8 Qf2 Bg5+ Kf8 e7+ Kg8 Bc4 Nf8+ Kf6 Kh7 Bf7 Rc8 Bh4 Kh6 e8Q Qb5 Bf1 Nh7+ Ke7 Rcb8 Qec6 Rc8 Rd7 Rh8 Rd8 Nf8 Qa5 Bc1 Qcb6 Bd2 Bg8 Qc6 Kf7 Qd7+ Be7 Rh4 Kf6 Kh5 Re3 Kg4 Bf7 R4h7 Qab5 Rh5 Reg3+
1N1Qr1RK/1B3q2/2pR1B2/Q1n1bB2/3qQpn1/2r3q1/3kPPBN/2n1B2q b - - 0 1 illegal: No possible last move
1Nq3R1/7b/1P2N1Bb/RRN1r1Q1/q1krpB2/2r3rb/n2pPK1N/6QN b - - 0 1 legal: proof: h4 c5 a4 b5 axb5 g5 hxg5 Qb6 g6 Qb7 g7 Nh6 f4 Qa6 d4 cxd4 g3 Ng8 g4 Nc6 f5 Qb6 g5 Qd8 Nd2 Ne5 Nb1 Ng6 fxg6 Qb6 Ra2 Qc7 Ra1 Qd8 c4 f5 b4 e5 b6 Ke7 b7 Kd6 b8R a5 b5 Kc5 b6 h5 Rh2 d5 Rh4 f4 Nh3 e4 Na3 a4 Nf2 f3 Nh1 d3 Kf2 d4 Nb5 d2 Nc7 d3 Bh3 a3 Qg1 d1R Bf4 a2 Bf5 Nf6 g8N Ra5 g7 Nd5 g6 Nb4 Nh6 Rg8 Ng4 Kd4 c5 Kc4 c6 Re5 Rh2 h4 Ne6 h3 c7 Rc1 Rg2 Rc3 Nh2 d2 Rb1 a1Q Ra8 Qa4 Ra5 Na2 Rbb5 Bd7 Rg3 Qc8 Rg5 Rh8 g8Q Bh6 g7 Be8 Rg4 Bg6 Qd8 Rg8 Qg5 Bh7 Bg6 Rd8 g8N Rd6 Nf6 Rd4 Nf1 h2 Nd7 Ra3 Nb8 Rc3 Nhg3 h1B Nh2 Bg2 Nh1 Bh3 Rg2 Qa6 c8N Qb7 Ne7 Qa8 Na6 Qc8 Kf1 f2 Nac5 Bg4 Rg3 Bf5 Kg2 f1R Nc6 Rff3 Nb8 Rfe3 Kf2 Bh3 Rg2 Rg3 Qf5 Bf8 Bf7 Rgd3 Rg8 Rg3 Qg5 Bh6 Bg6
5R2/2qQrN2/qBp2K1b/1kpQrRn1/2Qq1P2/1bPq2QB/3B1N2/4Qb2 b - - 0 1 illegal: No possible last move
Q1q1n3/4R2B/1nN1r1p1/4n2P/B1bqr1kQ/1Bp1q1P1/1R1BN1Q1/3q1B1K b - - 0 1 illegal: No proof kernel
qq2bk2/Q1pp4/B1QB3R/Nn2R3/B1Pb3P/1KNQ2bQ/2Qq3r/b1r5 b - - 0 1 legal: proof: d4 h5 a4 e5 dxe5 b5 axb5 Bc5 f4 Ke7 g4 hxg4 e4 Be3 e6 Kf6 f5 Nc6 e5+ Kg5 f6 Kg6 Ke2 Bc5 Kd2 Bf8 Ke1 Nce7 fxe7 Rh4 Qd5 Rh7 Qd1 Rh8 Kd2 a5 Kc3 f5 e8B+ Kh7 b4 g5 b6 Kg7 e7 a4 b7 f4 b8Q a3 e6 g3 b5 f3 b6 a2 b7 g2 Bh5 f2 e8Q g4 e7 g3 Ba6 f1Q Qd3 Nf6 Bf4 Ne4+ Kb3 Qd1 Qa7 Qd2 b8Q Kg8 c4 Nc3 Qb5 Bb7 Qc6 Nb5 Nf3 g1B Bd6 g2 Nc3 Bd4 Ne5 g1Q Bd1 Qb8 Qh5 Qgg2 e8Q Rh6 Rc1 a1B Qeg6+ Bg7 h3 Bf2 Bc2 Bg3 Rcf1 Qe4 Rf7 Qd5 Re7 Kf8 Bd1 Bh8 Qc2 Rh7 Qgd3 Qf3 Qcb6 Be4 Nc6 Bd4 Na5 Bg6 Qc6 Be8 Ka4 Na3 Nb3 Qd8 Qc1 Rb8 Qca8 Qdf4 Na5 Qd5 Bb3 Rb6 Qcc2 Qd2 Rh2 Qh1 Qg4 Qb1 Qc6 Qa8 Qh5 Rb5 Qh4 Re5 Kb4 Re1 Qg4 Qbd1 Ba4 Rh6 Qe6 Qh5 Kb3 Rc1 Qg4 Qd5 Rhe2 Qc5 R2e6 Rh4 Rh6 Qb6+ Bb4 Nb5 Bd6 Qbb8 Qe6 Re4 h4 Re2 Qh3 Rh2 Re5+
2k2qRN/1N1nr2p/4r3/2N1pBqb/4b1PB/1N2rRQP/1N6/1QrB2bK b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 f4 c5 fxg5 d4 Ra4 Na6 Ra1 Nc7 d3 Nd5 exd5 c4 Qh5 cxd3 Qf3 Qd6 Qd1 Qd8 Kf2 Kd7 g4 a5 Kg2 f5 b4 a4 c4 e6 g6 a3 g7 d2 c5 d3 c6+ Kc7 h3 a2 b6+ Kb8 b7 f4 d6 Qb6 c7+ Ka7 b8Q+ Ka6 b5+ Ka5 d7 Nf6 d8N Ra6 g8N Bd7 c8B Qc5 b6 Be8 b7 Kb6 Nc3 Bh5 Ne7 f3+ Kh2 f2 Qg3 e5 b8N Kc7 Nge2 Qe3 Ng6 Bc5 Nd4 Re8 Nb7 Re7 Be2 f1Q Nd7 Bb6 Qde1 d1B Na4 d2 Nh8 Bc2 Nb3 Be4 Nb2 d1R Bf3 Bd4 Ndc5 Rd3 Be6 Qh6 Bg5 Nd7 Bh4 Qg5 Qc1 Bf2 Bd1 Re3 Rg1 Rb6 Rg2 Bg1+ Kh1 Qff6 Bf5 Rbe6 Qc2 Rf3 Rf2 Re3+ Rf3 Kb8 Nca4 Qf7 Rc1 a1R Qd3 Qe8 Rc4 Rc1 Qb1 Qc8 Rc5 Qd8 Ra5 Kc7 Nac5 Qdg8 Ra8 Q8g7 Rg8 Qf8 Ncd3 Kc8 Ndc5
q2Br1R1/2qpRn1b/8/B1r2n1r/1P1NN2N/1KQPNQnN/2B4p/k3r3 b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 g4 Kf7 f4 Kf6 b7 a5 b6 c5 Bd3 h5 Qc2 e5 Kd1 e4 Nh3 e3 Rg1 a4 Nc3 Nc6 b8N a3 b7 Nd4 Nc6 a2 b8B c4 Bc7 Rh6 Ba5 Ba6 Rb1 a1Q g5+ Kf7 f6 Ke6 g6 Nf5 f7 Qc7 f8Q Re8 Qb2 e2+ Kc2 e1R Nd1 Kd5 g7 c3 Kb3 c2 Qc3 Rh7 Nd4 Ngh6 g8N Nf7 Bb2 c1R Bc2 Bd3 Rg6 Be4 d3 Rh6 Re6 Rh8 Re7 Rh6 Bb6 Qa8 Ba5 Rh8 Nhf2 h3 Nf6+ Kd6 Ba1 h4 Ne3 h2 Nh3 h1N Rb2 Rh5 Ra2 N5h6 Ra4 Bh7 f5 Ng3 Bb2 Re2 Ra1 Rce1 Rd1 Rf2 Rd2 Rf4 Rg2 Re4 Bc1 Re6 Rg1 Ke5 Ne4 Rc8 f6 Nhf5 Ng2 Kd5 Bg5 Re8 Ne3+ Ke5 Nf4 h3 Bh4 h2 Nh3 Ne2 Rg8 Neg3 Qg7 Rc8 Qg4 Re8 Nc4+ Kd5 Qf3 Rc6 Bg5 Ne5 f7 Rc5 f8N Nf7 Ng6 Nf1 Ne6 Kc6 Ne3 Kb5 Nh4 N1g3 Bd1 Rc8 Ree8 Rd8 Kc2 Ka4 Nd4 Rb8 Re5 Rf8 Bd8 Re8 Nb3 Ka3 Re7 Ka2 Nd4 Qe5 Qc4+ Ka1 Kb3 Qd6 Bc2 Qc7 Qc3+
1N6/1bkbp2P/rNB3Q1/q6r/3N2pn/1q3NNR/1b2PQrQ/1K1RB1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 c4 Nd7 cxd5 Ndf6 Ra6 Nh7 Ra4 hxg4 Ra6 g3 Ra3 g4 Ra1 Ng5 fxg5 Ba6 Ra3 Bb7 Ra1 Bc8 b4 Kd7 d4 f5 Kd2 a5 Kc2 c5 h4 g2 d6 f4 d5 f3 g6 a4 h5 f2 h6 a3 h7 c4 b6 a2 b7 c3 b8N+ Ke8 g7 Qa5 b5 Kd8 d7 Kc7 d8Q+ Kb7 b6 Qa6 d6 Be6 d7 Ra7 Nd2 Qa5 Ngf3 g1R Bg2 f1B Qe1 Ra6 Ne4 Nh6 g8Q Bg7 Bd2 Nf5 Qf2 Nh4 Rd1 a1Q Rh3 Q1a3 Be1 Qb3+ Kc1 c2 Ng3 Bd4 Qg6 Rg8 Bh1 Rg2 Qc7+ Ka8 d8N Bd7 b7+ Ka7 Qgd6 Rg5 Qg6 Rd5 Ne6 Rh5 Qf4 Kb6 Qfh6 Bc5 Ned4+ Kc7 Nbc6 Bb4 b8N Bc3 Na7 Ba1 Nc8 Bc3 Nb6 Ba1 Bc3 Bb2+ Kd2 c1R Bb4 Rg1 Bc3 Bg2 Kd3 Qf7 Be1 Rb1 Kc2 Qfa2 Nh2 Bb7 Bc6 Rg2 Nhf3 Q2d5 Qg1 Qdb5 Qh2 Ra1 Qe3 Qbb4 Qf2 Qba4+ Kd3 Qb3+ Bc3 Qbd5 Kc2 Bbc8 Rd3 Rag1 Rd1 Bb7 Kb1 Qb3 Be1
2B2k1q/Np2RB1p/N3B1Q1/1Q1q1Q2/2b1nQ1P/qbn1r1Q1/qP5K/4b2R b - - 1 2 illegal: No proof kernel
2R3b1/PnQpnk2/R2P1bRK/3n2B1/r1R1rNbN/n2Bn3/3pR1Q1/2B5 b - - 0 1 illegal: No proof kernel
5bQN/r3Q1p1/3B1p2/1R1R3B/2Pb1r1B/1N2rn1K/nr4P1/BrBbk2R b - - 0 1 illegal: No possible last move
3Q2n1/kNN2n2/B2nr2r/b2R1pN1/3K2pN/1r3PPr/R1bQN3/B1nQ4 b - - 0 2 legal: proof: e4 g5 b4 c5 h4 d5 bxc5 dxe4 a4 b5 axb5 g4 Na3 Qd5 Nb1 Qg5 hxg5 Bf5 Nf3 Bd7 Ng1 Bc8 Ke2 Kd8 Ke3 Kc7 d4 Kb7 c4 a5 d5 h5 b6 f5 d6 e5 f3 h4 d7 a4 d8Q a3 g3 a2 g6 h3 g7 h2 Ne2 Bd7 Nd2 Na6 Bb2 Rb8 c6+ Ka8 c7 Nc5 c8Q Rh3 b7+ Ka7 Bd4 Ba4 Qcd7 Bc2 Rg1 h1R Qd5 Nh6 g8N Bg7 Ne7 Ng8 Q5d7 Rh6 Bc3 R1h3 Ng6 Bf8 Qd5 Bd6 Rh1 Bc7 Nh4 Bb6 Rh2 Ba5 Rb1 a1N Rb5 Nab3 Ba1 Nc1 Qd3 Ra8 b8N Nb7 c5 Nd6 Na6 Rb8 c6 Rb6 c7 Rb7 Rd5 Rb3 Kf2 e3+ Ke1 e4 c8N+ Ka8 Nc7+ Kb7 Nc3 e2 Kf2 e1R Ne2 Kb8 Ke3 Kb7 Kd4 e3 Ne4 Kb8 N2c3 e2 Q3d2 Kb7 Ng5 Kb8 Nb6+ Ka7 Nba4 Nd3 Rg2 Ne5 Nc5 Nef7 Qb1 Rc1 Nb7 e1N Bc4 Nd3 Ba6 Re1 Qbd1 Ree6 Ne2 Nc1 Nc3 Ne7 Qf4 Bb1 Ra2 Bc2 Qfd2 Ng8 Ne2
B3R1Nn/1K1BpQ2/pR1BP2n/N2r2bn/2Q2Q2/1qnq1Q2/P5nk/1Q4q1 b - - 0 1 illegal: No possible last move, all moves rejected
B6B/1b1R1B1K/7B/1bpr4/n3r1k1/1NQ2ppP/1q1BnRPR/r1Q1Nn2 b - - 0 1 illegal: No possible last move
3b1qbk/1BR3N1/2Q1n2P/n2pPQ2/Rp6/Q4p2/rB1RN2K/r1QrQ2n b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 f5 Kg3 Kf7 a4 b5 h4 d5 c4 g5 e4 Kg7 a5 f4+ Kh2 f3 c6 b3 h6+ Kh7 e6 b4 a6 b2 e5 g4 h5 Qa5 e7 Qb5 e8Q Qc5 c7 Bd6 a7 Qb6 c5 Bf5 c8Q Qb7 c6 Nf6 c7 Qc6 Ra4 Ne4 Qe1 Ng5 Na3 b1R Ba6 Ra1 Ne2 Be7 Nb5 Be6 Nd6 Qc5 Nf5 Bg8 Qc6 Bd8 Ng7 Ne6 Bb2 Qf8 Bb7 Ra2 Qcc1 Nc6 Rg1 Ra1 Rg2 Na5 Qd7 Ra2 c8Q Ra1 Qdc6 g3+ Kh3 Ra2 Rf2 g2 Kh2 g1N Rg2 Rb8 a8Q Nh3 Qa7 Ra8 Qae3 Nf2 Qa3 Bf7 Q8d7 Rg8 Qdc8 Kh8 h7 Nh1 Q8d7 Nc5 Qf5 Ra6 Nf4 Ra8 Rd2 Ne6 Ne2 Ra6 Ne8 Rg5 Ng7 Bg8 Ne8 Nb3 Qg3 Qd6 Ra5 Ra1 Qa2 Rg7 Qf2 Rg1 Qh4 Rd1 Qe1 Nbc5 Qb3 Qf8 Ra2 Ra3 Qbc3 Rb3 Ra4 Rba3 Qb3 R3a2 Qa3 Nd7 Nf6 Kg7 h8R Ndc5 Rh6 Bh7 Ne8+ Kh8 Rf6 Bg8 h6 Nb3 Rf7 Na5 Ng7 Bb6 Re7 Bd8 Rc7
6n1/R1r3N1/N4pR1/b1BPRrbp/1QK2kR1/2P2bp1/4BNR1/Q1nq1n2 b - - 0 1 illegal: No possible last move, all moves rejected
2kQq1n1/1nb4N/1B2pPpB/2Q2rbr/4R1N1/5R1Q/3PpBB1/2rbK1B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 Rh6 gxh5 Rh8 h4 Kd7 b4 a5 f4 c5 b6 a4 f5 c4 h6 c3 h5 e3 f6 g6 d6 c2 h7 e2 b7 a3 h6 e6 b5 a2 b6 Na6 b8B Ra7 b7 Nc5 Rh4 Ra3 Ba7 Rf3 b8Q Rc3 Bb2 c1B Bg2 Rc2 Nh3 Nb7 Ng5 Qe7 Re4 Nc5 Na3 Qf7 Bd4 Qe7 Bg1 Rb2 Nc2 Qg7 Ne3 Qf7 Qc2 Rb5 Ng4 Nb7 Baf2 Bb2 Qc5 Qe8 Rd1 Kd8 d7 a1R Qg3 Rba5 Qh3 Be5 Rb1 Bc7 Rc1 R1a3 Rc3 Bg7 Rf3 Rc3 Qd6 Rf5 Qc5 Bb8 Qe5 Rc6 Qc5 Kc7 d8B+ Kd7 Ba5 Bc7 Bb6 Kd8 Qa5 Bd7 Qb4 Rc2 Qe7+ Kc8 Qc5 Ne7 Rff4 Ba4 Rf3 Rf8 h8Q Ng8 h7 Bh6 Qg7 Rc3 h8B Bd1 Qge7 Rc1 Nh7 Bg5 Bg7 Rf7 Qf8 Rd7 Qfe7 Rdd5 Bh6 Be3 Qg3 Rh5 Qed6 Rdf5 Qh3 Bg5 Qd8+
5NR1/QK4kB/1Qnpn3/NB1R2bp/1Q2PB2/3PBr1p/B3b2q/r1n4r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 fxe5 Nf6 bxc5 Ng8 Kf2 f5 Kf3 Kf7 g4 a5 c4 h6 g5 f4 Ke4 f3 Kd5 f2 e4 a4 b6 h3 g6+ Kg7 c6 a3 c7 a2 c5 Qe8 c6 Ra4 e6 Bb7 c8B Qe7 Bb5 f1R d3 Rf6 Qd2 Qa3 e7 Rh7 e8Q Qb4 Qe6 Ba8 b7 Rf7 c7 Qa3 Ne2 Qe7 Qb6 Rf4 Qb4 Rf2 Be3 Ra7 Nd2 Qh4 Nd4 Na6 N2b3 Nc5 Na5 Be7 Raf1 Rf7 Rf5 Bg5 Re5 Rf3 Ne6+ Kh8 Nf8 Ne7+ Kd6 Kg7 b8B Ne6 Rd5 Nc6 Bb7 Qf2 c8Q Qc2 B7a6 Bb7 Qcc7 Bc8 Bc4 Qd2 Bab5 Ra6 Qca7 Qg2 Rg1 Qh2+ Rg3 a1N Bc7 h5 Ba2 Nb3 Bb8 Nc1 Bc7 Kh6 g7 Rf1 g8B Rh1 Bb8 Rf7 Bh7 Rf3 Bc7 Ned8 Kc5 Kg7 Bcf4 Ne6+ Kd6 Ned4 Kc7 d6 Rg1 Bg4 Kb7 Ne6 Rg2 Rff1 Rc2 Be2 Rcc5 Ne7 Rc8 Rf3 Ng6 Nc6 Rh8 Qf2 Nf8 Qh2 Nc4 Ra3 Na5 Ra4 Bac4 Ra1 Bb3 Qg1 Ba2 Qh2 Rg8+
NR4r1/K4B1B/2PNQ2p/3nr1pk/1bB3b1/P2n1n2/R2rB1Qp/B2q2R1 b - - 0 1 illegal: Other
2k2NRQ/Q1b1r2n/1Bp5/3Bp1Q1/1P1NPrp1/r2B1QR1/bnKQb1q1/8 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 h4 Kd7 e4 f5 d4 a5 Kd2 e5 b4 c6 g6 f4 b6 a4 h5 f3 d6 f2 b7 a3 d5 a2 g7 Qh4 h6 Qh3 h7 Kd8 d7 Bd6 Ne2 Qb3 Rh3 Ra3 Nbc3 Ra6 Na4 Nh6 g8B Nf5 Nc5 Qg3 Nd4 Rb6 Qf3 Bc7 Bd3 f1B Kc2 Be2 Be3 Qg2 Rg3 Nd6 Bf2 Nc4 Nce6+ Ke7 Rh1 a1R Nf8 Kd8 Be6 Rg8 h8Q Ra3 Rh6 Nb2 Rg6 Rg7 Rg5 Rh7 Rg8 Rf7 Be3 Rf4 Bf7 Na6 b8Q Nc5 Qa7 Ne6 Bg1 Ng5 Be3 Ke7 Bg1 Kd6 d8Q+ Bd7 Bf2 Nh7 Qg5 Be6 Bg1 Rb7 Bf2 Rf5 Qd2 Ke7 d6+ Kd8 d7 Ba2 Bd5 Rf4 Be3 Bb6 Qa6 Ra7 Qa4 Kc7 d8Q+ Kb7 Qh4 Kc8 Qg5 Re7 Qa7 Bd8 Nb3 Bc7 Bb6 Bb8 Nd4 Bd6 Qe1 Bc7 Qd2
R3NQq1/n3R2b/bpkB2pP/5n2/r5Qn/1p2r2Q/1P1BB2B/NKB3r1 b - - 0 1 illegal: No proof kernel
QNn5/RB6/P1nkr1Rp/P3N3/KpQ4r/p4b2/Q1Qr1Bqb/2bQ3R b - - 0 1 illegal: No proof kernel
3n1N1Q/2k1r1nR/P1p2NR1/K1bP4/1p2Nq1p/B2BrN2/2N2Qb1/Q3n2r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 Kd2 b5 f4 h5 g4 e5 a4 c6 a5 e4 f6 b3 Kc3 b2 f7 e3 g6 e2 g7 e1N a6 Qg5 d6 Qg6 Kb4 Nh6 g8N Qf6 g5 Nc2+ Ka5 b4 g6 Qe7 f5 Ne1 f6 Bg7 f8Q Rh7 d5 Bh8 f7 Qe3 g7 Qf4 Nf3 Nf5 Na3 b1R Nc2 Ra7 Bb5 Rb3 Ba3 Re3 Bd3 Rb7 Ra2 Rc7 Qa1 Ra7 Ne7 Rh6 g8Q Bd4 Qh8 Ng7 Ng8 Bc5 Rh2 Rg6 Rh3 Rg1 Rg3 Rh1 Rg6 Re8 Rb2 h4 Nf6+ Kd8 d7 Kc7 d8N Bh3 Nb7 Bg2 Nd6 Re3 Nde4 Nd7 Rh6 Ne5 Rh7 Bd4 Qc5 Rb7 f8N Nf7 Rb1 Nd8 Rd1 Kb8 Rd2 Re7 Rf2 Kc7 Rf1 Be5 Rg1 Bd6 Qcd4 Bc5 Qdb2 Bf1 Rg6 Bg2 Qd4 Re2 Qg1 Re3 Qf2
2k2b2/1b3B1N/p3RRn1/1QNR1Qr1/1bN1npp1/2r1P3/3N2P1/K2NqBr1 b - - 0 1 illegal: No proof kernel
q1N1Q3/1N2Q2p/Q4nQb/2K1p1b1/2nB1pb1/2PRPn2/Q1RB3r/1Rrk4 b - - 0 1 illegal: No proof kernel
rn1qbkNb/3Np2p/1RR5/p3R3/1B1n1NBP/3K1Qr1/1PR5/3bQRr1 b - - 0 1 legal: proof: e4 b5 f4 g5 fxg5 d5 a4 dxe4 axb5 c6 bxc6 Qb6 Nf3 Qa5 Ng1 Qd8 Ke2 a5 d4 f5 c4 e3 g4 f4 h4 f3+ Kd3 e2 g6 e1R g7 f2 d5 Bd7 c5 Qc8 c7 Qd8 c8R Kf7 c6 Re6 c7 Rg6 d6 Nf6 g8Q+ Ke8 g5 Na6 Nd2 Nb8 Qe1 Nh5 Ne2 Re6 g6 Na6 g7 Rf6 Ne4 Rf4 Nc5 Rf7 Bd2 Ng3 Nf4 Nh5 Be2 f1B Bb4 Bfh3 Bg4 Ng3 Rf1 Nb8 Ra3 Bc6 Rb3 Nf5 Nd7 Rf6 Qd5 Rg6 g8N Bg7 Qf3 Nd4 Bd2 Ba4 Rb6 Bd1 Bb4 Rg5 Ne5 Kf8 d7 Qe8 d8R Bg2 Nf6 Rg8 Rd5 Qd8 Rc5 Bh8 Ned7+ Kf7 Re5 Bh3 Bf5 Rg1 Bg4 Rg5 Ng8 Kg7 Bh5 Be6 Bg4 Bf7 Rc6 Be8 Rc2 Na6 Rb8 Kf7 Rbb5 Nb8 c8R Kg7 R8c6 Rg3 Nc5 Kf8 Rbb6 Rg1 Bc8 R5g2 Bg4 Rg3 Nd7+
1kB1n1r1/1pRK1b2/1R2P3/RQBp1R2/3nr3/P2r4/p3Q1Bn/N1bRqN2 b - - 0 1 illegal: No proof kernel
1Q1rQNnr/p3k3/QpB5/BR1n4/3N2bp/nq1Qr3/1bPPRQ2/R6K b - - 0 1 illegal: No proof kernel
r3BQQ1/q4RQQ/Nb2b2R/N2BK1p1/B2n1p2/1n1P4/r3kpPQ/2n3q1 b - - 0 1 illegal: No proof kernel
K3B1Qn/B7/NQRN1b1r/1Qr2p2/4bP2/PN3RN1/p2qqp2/1n1Nk2n b - - 0 1 illegal: No proof kernel
B3N1NR/Nr2Q2K/2n3NR/1b1P2BP/N1p1krQp/p1r2R2/2q3nq/6b1 b - - 0 1 illegal: No proof kernel
2B1NBBn/rNNk1B2/3b2QP/2q2p2/4Rpb1/r1P1nQ2/2prR3/q1B1K3 b - - 0 1 illegal: No possible last move
rr1RB3/8/1bbn1PBB/2N3Pp/bBpk3q/1BQ5/1qRK1np1/1R3QN1 b - - 0 1 illegal: No proof kernel
2q1b1r1/B5Q1/1bp4K/qpp3Q1/PNnQQ3/Q1R3bk/r1PN1nR1/5N1B b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 a4 Qf3 a3 Qc6 dxc6 bxa3 c5 a4 Qd7 a5 Qd8 Ke2 Kd7 Ke3 e5 h4 g5 a4 g4 d4 e4 Kf4 b6 h6 e3 h5 e2 d5 e1B f6 g3 Kg5 g2 f4 Kd6 h7 Ne7 f7 Ba6 f5 Ke5 d6 Ra7 d7 Bg7 f8Q Rg8 h8Q Bc8 f6 Ng6 a6 Ke6 h6 Ba5 h7 Ne7 f7 Nec6+ Qe7+ Kd5 f8Q Ne5 Nf3 Ke4 Be3 Rb7 a7 Na6 a8Q Nb4 Rg1 Nd3 Nh2 Nf2 Ra3 Bf6+ Kh6 Kf5 Bd4 Nc4 Nd2 Kf4 Be3+ Kg3 Qhg7+ Kh3 h8Q Bh4 Qeg5 Bg3 Rc3 Qe8 d8N Bd7 Nc6 Qc8 Qf3 Be8 Nb4 Rb8 Qae4 c6 Bf4 Rb7 Qgd4 Rb8 Qhg7 Rb7 Qfe3 Rb8 Be2 Rb7 Bf3 Rb8 Rf1 g1Q Bh1 Rb7 Rb1 Qe1 Bb8 Rf7 Rd3 b5 Nb3 Rgf8 Nd5 Rg8 Ba7 Bb6 Qc1 Qd2 Qa3 Qa5 Rc3 Nd3 Nd2 Rf1 Nb4 Nf2 Re1 Nd3 Re2 Ra1 Rg2 Ra2 Nhf1 Nf2 Q7e7 Ne3 Qgg7 Nc4 Qeg5
Q5QB/BB2qq1P/3p1kR1/1r1PR3/N2r4/Rnp4q/2pB1N2/b1BbKn2 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 Nf6 gxh5 Ng8 c4 bxc4 f4 Kf7 a4 c5 d4 e5 h4 g5 h6 e4 f6 c3 d5 g4 h5 c4 a6 e3 f5 e2 a7 g3 h7 c2 h6 g2 a5 Qb6 a6 Bb4+ Nc3 Qd6 Ra3 Qh2 Nh3 g1Q Nf2 Qgg3 Rg1 Qf4 Rg3 Bc5 Na4 Nc6 Rg5 Rb8 a8R c3 a7 Nd4 Qd3 Rb1 Qg3 Qh3 Qg2 Ba6 Re8 Ne7 a8Q Rb5 Rg4 Rf8 h8B Nb3 h7 Rg8 Rg3 Rg4 Qg1 Qc7 Qg2 Rd4 Rg5 Ng8 Re5 Nh6 Qg3 Bc8 Qg1 Ng4 Rg7+ Kf8 f7 Nh2 Ra1 Ba3 Qg5 Bb2 Ra3 Qh6 Bh3 Qe6 Qg6 Ke7 f8B+ Kd8 f6 d6 f7 Nf1 Be7+ Kd7 Beg5 Ba1 Bgd2 Ke7 Qg3 Bd7 f8B+ Kf6 Bg4 Be8 Bf5 Qef7 Bc8 Qcd7 Bb7 Qh3 Be3 Rg4 Bc5 Rd4 Ba7 Bd7 Re8 Bg4 Be7+ Kf5 Beg5 Bh5 Bgd2 Bf3 Qg4+ Kf6 Qgc8 Bh5 Re5 Bg4 Nd3 Bf3 Qg8 Bh5 Kf2 e1Q+ Kg1 Qeh4 Bb8 Qg5+ Kf2 Bd1 Ke1 Qgh4+ Nf2 Qh6 Rh5 Qhd7 Ba7 Qde7+ Re5 Qh3 Rg6#
1RQB4/2rBR2p/n1B2bP1/Bp1qn2b/5K2/3Pr1R1/k4pNn/q1BQ3N b - - 0 1 illegal: No proof kernel
b1q1b1QB/2r1nq1p/1r2nRpn/4P3/Q1Nk1R1P/1p3RN1/1RR1B3/1B1K4 b - - 0 1 legal: proof: f4 a5 c4 e5 b4 axb4 g3 d5 cxd5 f5 Kf2 Bc5+ Ke1 Be3 fxe5 f4 Nh3 f3 Ng1 Bf4 gxf4 Qg5 Kf2 Qf6 Ke1 Qd8 a4 Kf7 e4 c5 d4 b5 h4 b3 d6 Ke6 d5+ Kf7 e6+ Kf6 a5 g6 f5 Ke5 f6 b2 f7 c4 f8R c3 e7 c2 e8Q+ Qe7 a6 b4 d7 Ra7 d8R Qe6 d6 Nh6 d7 Qe7 Rh3 Ng4 Be2 Bb7 Rf4 Rf8 Ra2 Rf6 Na3 b1N Rb2 Ba8 Rc8 Nc3 d8R Nb5 Qg8 Nd4 Rf8 Rc7 a7 Rb6 R8f6 f2+ Kd2 f1B Rhf3 Ne6 Nc4+ Kd4 e5+ Be4 a8B Qf7 Bc6 Nh6 Bd7 Nd8 Bf5 Ne6 Ke1+ Kc5 Qd7 b3 Qa4 Ba8 Bd2 Nc6 Bb4+ Kd5 Bf8 Bh3 Bg7 Ne7 Bh8 c1Q+ Bd1 Nd8 Ne2 Ne6 Ng3 Qc2 Be4+ Kd4 Be2 Qc3+ Kd1 Bf5 Bb1+ Bfe4 R4f5 Bec6 Rf8 Be8 Rf2 Qa5 R5f3 Qa6 R3f4+ Kd5 R2f3 Qc8 Rc3 Kc5 Rcc2 Kd5 Rf3 Kd4 R6f5 Qg7 R8f6 Qf7 R5f4+
2N2bQ1/1b1B2p1/2PN3r/2q1npKB/6n1/QrBk1pqR/P2B4/n1RBR3 b - - 0 1 illegal: No proof kernel
n1R1n2b/R2Pq3/2prP1Bp/NR4Q1/r2b1RpR/BNN2q2/8/Q1Kbk3 b - - 0 1 illegal: No proof kernel
Q2rB2Q/1NBP4/p3Nn2/K1Q2pRb/PNq4k/4R2p/n2qnr1Q/2b3Q1 b - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 e5 c4 exf4 b4 d5 cxd5 Nc6 bxc5 Nb8 g4 Ke7 a4 f5 d4 h5 Kd2 b5 Kc3 h4 Kb4 h3 e4 f3 e5 f2 e6 a6 d6+ Ke8 e7 Kf7 e8Q+ Kg7 c6 Kh7 g6+ Kg7 g5 Qb6 c7 Qc5+ Ka5 b4+ Bb5 f1N d5 b3 d7 b2 d8N Nd2 d6 Be7 Qe2 Bb7 c8Q Bf8 Nc3 b1Q Nf3 Ra7 Na2 Qd3 Re1 Be4 Nb4 Rb7 Nd4 Nb1 Bf4 Qd2 Qh2 Bf3 Re3 Qc4 Qc5 Nc3 Rg1 Ne2 Rg2 Rd7 Nb7 Bh5 Bg3 Nf6 Ne6+ Kg8 g7 Kh7 g6+ Kh6 g8Q Nc6+ Kb6 Bg7 Qa8 Rc7 Qgc8 Rd8 Rg1 Bf8 g7 Re7 g8Q Red7 Nd3 Nb4 Ka5 Na2+ Nb4 Rg7 Be5 Rg2 Be8 Rf2 d7 Bd6 Bg3 Be5 Qcb8 Bb2 Bc7 Bc1 Rg2 Bf3 Rg6+ Kh5 Rg5+ Kh4 Qh8+ Bh5 Qg1 Qcd4 Bb6 Q4d3 Qbh2 Qc4 Bc7
4q3/1BRpNBrB/1Qp1N3/1Pn2rR1/1r1n1b1B/1p1q2BP/b4K1Q/Q1k5 b - - 0 1 illegal: No possible last move
1n2b3/NrP2Q2/B2rRNN1/2NB4/pb2RqqB/2Ppnk2/6pQ/2NbK3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 h4 Ke7 b4 Kf6 e4 Ke5 h6 f5 c6 d5 b6 a5 b5 g5 h7 f3 c3 f4 h5 a4 h6 d4 b7 g4 b6 g3 c7 g2 Rh4 Qd6 Ne2 Qa3 Nd2 Bg7 Qb3 Bf6 Qf7 Be6 Nb3 Nd7 b8N Qb4 b7 Bg4 Nc5 Ra7 Be3 Bh5 Bf2 Be7 Nc1 Ngf6 Ba6 Rd8 h8Q d3 h7 Bg6 Rh6 Bf8 Bh4 f2+ Kd2 f1B Ke1 f3 Nc6+ Kf4 b8N Ke3 e5 Rb7 e6 Ng4 e7 Be2 e8B Bd1 Na7 Bh5 Re6+ Qe4 Nbc6 Nb8 Ne5 Rd6 Bc6 Bg6 Ned7 Be7 Qff6 Be8 Qf7 Bf8 Nf6 Kf4+ Kd2 f2 Bd5 f1Q Rb1 Ne3 Rb4 Qf3 Ke1 Qg4 Rc4 Kf5 Rd4 Qef4 Rde4 Rc6 N5b3 Bb4 Nc5 Rd6 Qhg8 Be2 h8N Bd1 Ng6 Qgg5 Nh7+ Kg4 Qh8 Kf3 Qe5 Qg4 Nf6 Qfg5 Qh2 Q4f4 Ne2 Qgg4 Nc1
B2k2B1/B1p4r/NRP2rpn/4p3/1Bn1RP2/2bq2NK/3BQ1QN/q3r2b b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 f6 gxh5 Kf7 d4 Rh6 dxe5 Ke8 e6 Rh8 e5 fxe5 f4 d5 Kf2 a5 Kg3 d4 c4 d3 h4 a4 b4 a3 e7 a2 c5 d2 h6 g6 h5 Rh7 b6 Bb7 b5 Rf7 h7 Ra4 h8Q Rb4 h6 Rf6 h7 Rb2 Bc4 Rf7 Nc3 Bf3 b7 Qd3 b6 Qe3 Rb1 a1Q Ne4 Qa4 Qe2 d1R Bd2 Bh5+ Nf3 Qc6 Kh3 Qd6 Re1 Rb3 Ng3 Nh6 Nh2 Nd7 b8B Qf2 b7 Rg7 Ba7 Qd3 b8N Ra3 Rb6 Qg1 Bg8 Bf3 Na6 Bh1 Qg2 Ra2 Re4 Re1 Qe2 Rf7 Qf6 Ra3 h8B Rh7 Qg5 Qgd4 Bg7 Qa1 Qgg4 Ra4 Qgf3 Rd4 Bf6 Rd6 Qfg2 Rc6 Bh4 Rf6 Bg5 Nb8 Bh4 Nc6 Bg5 Kd7 e8B+ Kd8 Bef7 Bd6 Bd5 Na5 Ba8 Nc4 c6 Bb4 Bh4 Bc3 Bg5 Nf5+ Bh6 Rhf7 Bf8 Nh6 Bd6 Rh7 Bb4
1Br1B1Q1/PbRq1q1q/6Qn/Pp3QK1/1B1b2RB/N3k1p1/3N2pn/2r3B1 b - - 0 1 illegal: No possible last move
R1Q3k1/PB2n1p1/4r1r1/2n1NQ1p/b5RB/K1b1p3/1P2BqNr/1B1R1q1B b - - 0 1 illegal: No possible last move, all moves rejected
8/pq3q1B/3k1bp1/1RQ1R1n1/P1QKQr1q/7N/1BP1bp2/NnQQ2rN b - - 0 1 legal: proof: f4 c5 g4 e5 b4 exf4 bxc5 h5 gxh5 d6 cxd6 Qd7 Bh3 Qc7 Bf1 Qd8 Kf2 Kd7 e4 b5 d4 f5 h4 f3 Ke3 b4 a4 b3 e5 b2 d5 f2 e6+ Ke8 d7+ Ke7 h6 f4+ Kd4 f3 h5 Qe8 d8N Qg6 d6+ Kf6 h7 Nh6 d7 Ke7 Nc6+ Kd6 d8Q+ Bd7 e7 Qg5 e8Q Qb5 Ne7 Qa5 Nd2 b1Q Nh3 Qa6 Bb2 Nf7 h6 Rg8 h8Q Qb7 h7 Ng5 Nb3 Na6 Qc1 Nc5 Bd3 Nce4 Re1 Nd2 Re5 f1Q Bg6 Qa2 Rb1 f2 Na1 Qf7 Qc8 Qe2 Qc4 Bg4 Qec8 Bf3 Qf5 Qf1 Qe4 Qh1 Qd1 Be2 Nf5+ Kd7 Qc1 Be7 Ng3 Kd6 Qd1 Qh2 Nh1 Bf6 Bf5 Rgf8 Qg8 Qg3 h8Q Qh4 Bh7 g6 Qgg7 Rab8 Qh6 Rbe8 Bc1 Rd8 Rb5 Nb1 Bb2 Rc8 Qb3 Rc3 Qc4 Rg3 Qg8 Rg1 Qc8 Qe8 Qgc4 Qef7 Qh5 Rd8 Qhg4 Rd7 Qgf4 Re7 Qfc1 Rc7 Qa2 Rc3 Qb3 Rf3 Qbc4 Rf4 Q8c5+
7k/p1b4B/P1R2rq1/Pr2QnB1/1p1Q1p2/Q4q1R/q4NNK/bQ2Q1Nn b - - 0 1 legal: proof: g4 e5 a4 d5 c4 h5 gxh5 Na6 cxd5 Be6 f4 exf4 a5 Bd7 b3 Ba4 bxa4 Nb8 Kf2 g5 Kg2 b5 e4 f5 h4 Kf7 d4 Kg7 a6 c5 e5 f3+ Kh2 b4 e6 c4 d6 c3 a5 f2 d7 g4 d5 c2 h6+ Kh7 e7 Qb6 d8Q Qc7+ d6 Qd7 e8Q Bg7 h5 Qf7 d7 Nf6 Nc3 Nc6 Ne4 Rb8 Bg5 c1B Bd3 f1Q Nf2 Rb5 Qee1 Qa2 Qf3 Bb2 Rc1 Ne7 Rc6 Ba1 Qc8 Qfe2 d8N Ne4 Ne6 Bge5+ Nf4 Ng3 Ng2 Rf8 Bb1 Rf6 Qa3 Qd1 Qd8 Qdb3 Qd3 Kh8 h7 f4 Qdd1 Qf3 Bf5 Bc7 Qb1 Kg7 Bd3 Nef5 h8Q+ Kf7 Qd8 Kg7 h6+ Kh7 Qd4 Kh8 h7 Ne4 Nh4 g3+ Kh3 g2+ Kh2 Neg3 Be4 Kg7 h8Q+ Kf7 Qe8+ Kg7 Qee5 Kh8 Bc2 Nh6 Bh7 Nhf5 Ne2 g1Q+ Kh3 Qf1+ Kh2 Qh5 Ng1 Qg6 Ng2 Qfe2 Qbd3 Qf3 Qdb1 Qfb3 Kh3 Qd1 Ne3 Qg4+ Kg2 Qge2 Rh3 Nh1 Kh2 Qf3 Ng2
7n/1Q1K1B2/q1N5/2k5/1Rrnp2Q/BR1PQN1N/2bNNpPp/b2n1nr1 b - - 0 1 illegal: No proof kernel
Qr2B2b/r3Q2n/2Q1K3/QB1Qpnq1/2p3PN/2r1p3/1RP1RB2/2krbN2 b - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f4 dxe4 fxg5 Nh6 h4 Ba6 g4 Ng8 h5 Bc8 Na3 Bf5 Nb1 Bg6 hxg6 Qd5 Ne2 Qd4 Ng1 Qd8 Kf2 Kd7 Kg3 Ke6 Kf4 Kd5 Kf5 Kd4 b4 h5 b6 c5 b5 e5 g7 a5 g6 f6 b7 a4 b6 h4 Ra2 h3 Ke6 h2 Rb2 f5 Qe1 f4 Bb5 Nf6 g8Q f3 g7 Nc6 b8Q f2 b7 f1R Qc8 a3 b8Q Ne7 Qc6 Ra7 Qba8 a2 d3 a1B Nd2 Kc3 d4 c4 d5 Nf5 d6 Rh3 d7 Nh7 Ngf3 Qg5 d8Q Be7 Rg1 h1R Nh4 Bf6 Rg2 Rd3 Re2 e3 Qe7 Rhg1 Qgf7 Rf4 g8B Bh8 Qcd7 Rfd4 Qdc6 Rd8 Nf1+ Rd2 Qfe8 Rb8 Bf7 Rh1 Qd1 Rd3 Q8d8 Rg1 Be8 Rh1 Ra2 Bb2 Qdd5 Ba3 Qdd8 Bb4 Qa5 Rg1 Ra1 Rh1 Bd2+ Kb2 Be1 Rc3 Qdd5 Rg1 Ra2+ Kc1 Bf2 Rh1 Nd2 Rd1 Rb2 Rd3 Ne4 Be1 Ng3 Rc3 Nf1
5bQ1/2b2B1B/2RqN2n/1Pp2b1K/1kr1R3/Bp3P2/2p1B1BR/NbQn3r b - - 0 1 illegal: No proof kernel
1Qn1BB2/N3rQ2/1N2p2K/2k1BB1b/4pr2/P3Bnbq/P1R1r2p/1r2R1N1 b - - 0 1 illegal: No possible last move
B1N2Q2/4NK1p/p7/4qbBP/1B1P1Q1r/2rr2bR/2pB1nr1/n1k2RRB b - - 0 1 illegal: No possible last move, all moves rejected
1b1NRK1b/3p2N1/6b1/2r1R1BQ/B2Bp3/nb1P1Nqr/pPknQN2/1N6 b - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 f5 a4 fxe4 axb5 c6 bxc6 Qc7 Ra2 Qa5 Ra1 Qd8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 Ke5 a5 c4 e6 g4 a4 f4 a3 f5+ Kf7 c7 h4 c5 h3 c6 a2 f6 Kg6 f7 h2 Qe2 e3 Nf3 Bb7 c8N Rh4 c7 Bd5 Ne7+ Kh7 Kd6 e5 c8Q Ra3 g6+ Kh6 g7 Bb3 Qc5 Nf6 g8N+ Kh7 g5 Rc4 Qb5 Rc5 Nh6 Na6 Nf5 Nb4 Ng7 Nc2 g6+ Kh6 Rg1 h1B Rg5 Qa8 Rf5 Qe4 Bg2 Qf4 Qa5 Qg3 d3 Ra4 Bd2 Rh4 Bc3 Rh3 Bd4 Qe1 Nc3 Qg3 Re1 Na3 Nb1 Nh7 Ne6 Bg7 f8B Nf6 Nc6 Ne4+ Ke7 Nd2 Ncd8 Rc4 Kf7 Rc5 Be7 Bh8 Bg5+ Kh5 g7 Kg4 Qf2 e2 g8N Rh7+ Kf8 Rh3 Rg1 e1B Qe2 Bf2 Ng7 Be3 Qb5 e4 Re5 Bf4 Re8 Bb8 Re5 Qe1 Nf6+ Kg3 Ng4 Qf2 Bf6 Kf4 Bh4 Qg3 Nf2 Rc4 Re8 Rc7 Qh5 Rc5 Bf1 Bg2 Qd1 Bh1 Be2 Bg2 Qe1 Bf1 Bd1 Be2 Bc2 Bd1 Be7 Bf7 Rg2 Bg6 Ba4 Bb3 Qd1 Qh4 Rg5 Qg3 Bc3 Ke3 Re5 Rh2 Qf1 Rh4 Qg2 Rh3 Bg5+ Ke2 Ng4+ Kd1 Bd4 Kc1 Qe2 Kc2 Nf2
Q4RNr/2np3N/1r1n4/Bp3RQp/B5rk/1PN1Kb2/2q2P1B/3bNNr1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 exf5 Bg7 d4 cxd4 a5 Be5 Kd2 Bc7 Ke1 Bb6 axb6 Bb7 Nc3 Ba6 Nb1 Bc8 Kd2 Kf7 c4 a5 g4 e5 g6+ Kf6 c5 Kg5 b7 h6 c6 d3 g7 e4 c7 a4 f6 a3 f7 a2 f8N Qe7 Be2 Ra5 Rh5+ Kf4 g5 Kf5 g6+ Kf6 Nc3 Ra4 Nf3 Rd4 Ne1 Rc4 Qa4 Na6 b8B Bb7 c8N Nc7 Qa8 Qc5 Bd1 Ne7 g8Q Nf5 g7 Nd6 Nb6 Qc6 Ke3 d2 Ba4 d1B Rd5 h5 Bd2 Rd4 Rc1 a1R b3 Qc4 Nh7+ Kg6 Ne2 Qc2 Rf5 Rb1 Nd5 Bc6 Kf4 e3+ Kf3 Re4 Nc3 Re6+ Kf4 Bf3 Ng3 e2 Nf1 Kh6 Qd8 Rg6 Ke3 Rg4 g8N+ Kg6 Rf8 Ra1 Nhf6 Kg5 Qe7 Kh4 Nh7+ Rg5 Nd5 Rb1 Ba5 Ra1 Qg7 Rg4 Qh6 Qb2 Rc5 Qc2 Nc3 Rb1 Qf4 Rc1 Nd3 Rb1 Rcf5 e1R+ Kd4 Re6 Ne1 Ne4 Qc1 Rb6 Ke3 Nd6 Qd2 Rc1 Qdd5 Ra1 Qe5 Rb1 Qg7 Ra1 Qg5+ Kh3 Qd8 Nf7 Nh6 Ne6 Bh2 Nc7 Ng3 Nd6 Ng2 Bde2 Qg5 Rg1 Ng8 Bd1 Nf1 Rh1 Ne1 Rhg1 Qg6 Kh4 Qg5+
1b3rnN/1r1p2PQ/3RpR1b/Nkb4N/1B4P1/1pQ1n3/BNq3bR/4KN2 b - - 0 1 illegal: No proof kernel
nBQ5/1rP1r3/4Rnq1/kQ1N2p1/2bQBQ1p/pQN1Kb2/2r3PR/1r2R3 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Bg7 h6 Ng8 hxg7 Qb6 Bg5 Qc7 Bc1 Qd8 Kd2 e5 b4 d5 c4 Kd7 f4 Kc7 b6+ Kb7 b5 a5 c5 h5 f6 h4 f7 e4 f8Q g5 f5 a4 f6 d3 f7 d4 Nh3 a3 Nf4 Na6 Nd5 Rb8 Rh2 Qe8 Nbc3 Nf6 g8R Be6 Rg6 Nc7 Qg4 Na8 c6+ Kc8 Qd6 Rb7 f8Q Rhh7 c7 Re7 Qdf4 Kd7 Rh6 Qg6 Qd1 Bg8 Qg7 Be6 Qb3 Bf7 Be2 Be6 Bf3 e3+ Kd1 e2+ Kd2 e1R Be4 Bg8 Bb2 Rc1 Qh8 Ra7 b7 Rb1 b8Q Rb7 b6 Kc6 Qf8 Rc1 Qc8 Rc2+ Ke1 d2+ Ke2 d3+ Ke3 Kc5 Re1 d1B Ba1 d2 Qg7 Ra7 b7 Bf3 b8Q d1R Qh8 Rb1 Bb2 Nh5 Qd4+ Kc6 Bc1 Rb7 Bd2 Qd6 Re6 Nf6 Na2 Bf7 Ba5 Bg8 Bb6 Bf7 Ba7 Bg8 Nab4+ Kb5 Nc3+ Ka5 Nbd5 Qc6 Qd8 Qe8 Qbc8 Qg6 Qdd7 Bf7 Bb8 Be8 Qdd6 Bb5 Qdd7 Bc4 Qdb5+
rq3n2/2p1Q1Rb/QQ2b2P/2r5/1bQ3BN/pBP3n1/p3R3/BQkNK1b1 b - - 0 1 legal: proof: e4 b5 d4 e5 dxe5 h5 a4 bxa4 g4 f5 exf5 Nf6 gxh5 Ng8 h4 Ke7 b4 d5 f4 g5 e6 Kf6 h6 a5 e7 g4 e8B g3 b5 d4 h5 g2 h7 d3 h6 a3 b6 a2 b7 a4 Nc3 a3 Be2 Bb4 Bb2 Bf8 Bg4 Be7 Rh2 Qd6 Ba4 Nc6 b8Q Qd8 Qb1 Qf8 Nf3 g1B Qb6 Bb4 Bb3 Ne7 Nh4 Be6 Re2 Rg8 h8Q+ Rg7 Qa6 Ng6 Qg8 Qb8 Qb6 Nf8 Qa6 Bbc5 Nd1+ Nd4 c3 Bb4 Qb6 Rg5 Qg6+ Ke7 f6+ Kd7 f7 Rc5 Qe4 Nf5 Qc4 Ng3 f5 Ke7 Qba6 Kf6 Qb6 Kg5 f6 Ng6 Qca6 Kf4 f8Q Bc8 f7 Be6 Qe8 Nf8 Rh2 Ke4 Qeb5 Kf4 Nf2 Ke3 Qc4 Nh7 f8Q d2+ Kd1 Qb7 Qe7 Qb8 Qf5 Nf8 Rb1 Qd8 Ba1 Qb8 Rg2 Qe8 Rb2 Qb8 Kc2 d1B+ Kc1 Nh5 Qb1 Ng3 Rd2 Bc2 Rd7 Bh7 Kd1 Bf5 Ke1 Bc2 Qed6 Bg6 Rg7 Bh7 Qe7 Ne2 Kf1 Kd2 Rh2 Bhg8 Nd1 Bh7 Qf5 Kc1 Ke1 Ng3 Re2 Bd7 Qfd3 Be6 Qb1+
1RbN3K/pprr2B1/5Nq1/k3NBN1/1PQb4/N3Q2R/1n2Pp1r/1nr4R b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 Nc6 g4 Nb4 gxh5 Nxa2 Kf2 Kd7 Ke3 c5 Ke4 Kc7 d4 Kb6 h4 g5 b3 f6 e6 f5+ Ke5 f4 d6 f3 d7 g4 e7 f2 e8N c4 h6 g3 h7 g2 d5 c3 h5 c2 d6 Qh4 d8R Qc4 d7 Bg7+ Nf6 Qb5+ Qd5 Bh6 Rh3 Bf8 h6 Ka5 Bb2 c1R Na3 Rb1 Nf3 g1R Ng5 Bc5 Qc4 Nc3 Rf8 Rd1 d8N Qa4 Bg2 Nb1 Be4 Bb6 Bf5 Rd7 Ke6 Rd2+ Kf7 Ne7 Kg7 Nd5 Be5 Bd4 Re8 Rf8 h8N Qc6 h7 Ndc3 Nhf7 Nd1 h8Q Nb2 Qh6 Rh8 Rf8 Rh7+ Kg8 Rg7+ Kh8 Rc1 Re8 Bb6 Rf8 Rd7 Bd4 Rc7 Ne5 Qe8 Rg8 Qg6 Re8 Rgd7 Rf8 Rh1 Re8 Rh2 Rf8 Nd2 Rh1 Nb1 Qb4+ Ka6 Nfe4 Nc4 Nge6 Rc6 Nf3 Nb2 Nf7 Rc1 Qc4+ Ka5 Bg7 Bd4 N7e5 Rc7 Nf6 Bd7 Qe3 Re8 Nfg5 Re7 Rb8 Bc8 Nd8 Red7 b4+
1BNR2R1/1nQ2knB/KRr2bp1/1B1q2Pp/2Q1p2P/5N2/3rr1q1/1R3Rq1 b - - 1 2 legal: proof: c4 a5 e4 d5 cxd5 b5 a4 f5 b3 fxe4 axb5 a4 b6 a3 Ra2 Bd7 Ra1 Ba4 bxa4 Ra7 Nf3 Ra6 Ng1 Ra8 Ke2 c5 d4 e5 g4 h5 h4 c4 f4 a2 d6 e3 g5 c3 Kd3 c2 Kc4 e2 Kb5 e1Q f5 Qe7 b7 Kf7 f6 Qe4 d5 Qd8 a5 Qe7 a6 Nd7 b8R Qd4 a7 Qe4 Nf3 Qe6 Rb6 Ne7 Qd3 Nc8 Qc4 Ke8 Na3 Nc5 d7+ Kf7 d8Q Rb8 a8B Ne7 d6 Nf5 d7 Nb7 Rb1 a1Q Ka6 Be7 Qdc7 Rhe8 d8R Q6d5 Bf4 c1R Bh2 Qad4 Nb5 Qg1 Na7 g6 Nc8 Ng7 Bf4 Kf8 f7 Bf6 Bg3 Qg4 Bd3 Qg2 Rf1 Qgd4 Bh2 Qdg1 Be2 Rd1 Bg3 Rd2 Bd3 Ne6 Bf4 Kg7 f8R+ Re7 Rfe8 Kf7 Rg8 Ng7 Bh2 Nd6 Bc6 Nb7 Bb5 e4 Bc2 Re2 Bb3 Rd2 Qe5 Re6 Qec3 Rc6 Bd6 Na5 Ba2 Rb7 Bb8 Re2 Qe5 Rd7 Qc7 Nb7 Rb3 Qe6 Qd4 Qf5 Rge8 Qe6 Rbb1 Qc4 Rh8 Ke6 Qc3 Rdd2 Qc1 Kf5 Qc3 Qcc5 Bg8 Qd5 Bh7 Ke6 Qc5 Qe3 Qc4 Qeg1 Qg3 Kf7 Rhg8 Re1 Qe5 Ree2 Qc7+
qQR4N/1Q2k3/n1KR4/Q2pr3/r1pQq3/1pP1N1rb/1Pn1Qn2/2B1B1B1 b - - 0 2 legal: proof: g4 e5 f4 g5 d4 h5 dxe5 b5 a3 b4 Bh3 b3 fxg5 Nh6 g6 Ng8 g5 Bd6 Bg4 Bb4+ axb4 hxg4 Kf2 a5 Ke3 d5 Kd4 f5 Kc5 f4 h4 a4 e4 a3 b5 c6 e6 a2 e7 g3 g7 f3 c3 f2 h5 f1Q b6 g2 g6 Qf4 h6 Rh7 e5 Qf6 b7 Bd7 Nf3 g1N Nh4 Nf3 Nd2 Bf5 Nc4 Qf8 Ne3 Qc8 Qd4 Nf6 g8Q Ng1 g7 Nf3 Ng6 Be4 Qf7+ Kd7 g8Q Qfe8 e6+ Kc7 Nh8 Rg7 h7 Ng4 Rh6 Nf2 Qgf8 Qed7 e8Q Rg3 e7 Qg4 Rd6 Bf5 Q7g7 Ra4 Qeg6 Qg5 e8Q+ Qe7 Qgg4 Ne1 Qe2 Bh3 Qa6 Rb4 Qa5+ Rb6 Qf3 Nc2 Qe2 Qd8 Nf7 Qe4 h8B Rg5 Qh7 Re5 Bf6 Qc8 Bh4 Qd8 Bg3 Qc8 Bh2 Qd8 Bg1 Qc8 Rb1 a1R Qeg8 Ra4 Nh8+ Bd7 Qg3 Kd8 Ra1 Ke8 Qf4 Bh3 Qc7 Ra6 Qg3 Ra8 Kb6 Na6 b8B c5 Qb7 Qd8+ Kc6 c4 Bc7 Qb8 Bd8 Qa7 Bh4 Rd8 Qf4 Qa8 Qh2 Rd7 Bg3 Rg7 Ra3 Nh1 Be1 Nf2 Ra2 Rg2 Qf4 Nc7 Qg3 Ke7 Qg8 Rg6 Qb8 Rg3 Qg8 Qf8 Qac5 Rb4 Ra8 Ra4 Qa5 Qb8 Qbb4 Na6 Qc8 Nc7 Qca6 Qa7 Rc8 Qb8 Qa8 Na6 Qbb5 Qa7 Qab8 Qa8+ Q5b7+
r1qb1R1q/1N1bBRn1/2k5/b1PQ4/p1r5/qp1pQN1R/1P2B1Q1/1K2Q1Q1 b - - 0 1 legal: proof: e4 c5 h4 b5 a4 g5 d4 f5 exf5 Na6 dxc5 gxh4 Qf3 b4 Qd3 Nc7 Qd1 Nb5 axb5 Ba6 Rh3 Bb7 Rh1 Bc8 c6 d5 Kd2 a5 g4 h5 f4 e5 c4 h3 Kc2 h2 g5 d4 c7 Kd7 b6 e4 f6 e3 c5 h4 b7 h3 b8Q e2 g6 e1B f7 a4 g7 Qe7 f5 Ra7 f6 Qe2+ Nd2 Ne7 g8Q Rh5 Qg2 Qa6 Qba8 Re5 Be2 Qc6 Nb3 Re4 Na5 Nf5 Bg5 Be7 f8Q Bd8 f7 Ng7 Be7 Rg4 Qb7 Ra8 Rc1 Qf3 Kb1 Qa3 Rc4 d3 Rf4 Bc3 Qe1 b3 Qh8 Bb4 f8R Rh4 R4f7 Rc4 Qh5 Bc3 Qb8 Bd2 Nb7 Ba5 Qgf2 Kc6 Qe3 Bg4 Nf3 Bf5 Qhg5 Bc8 Qg2 Be6 Rg1 h1Q Rf1 Qh2 Rh1 Qg3 Qgg1 h2 Qc8 Bh3 Qf5 Qg4 Qfg5 Qd7 c8Q+ Qc7 Qcg4 Qc8 Q4g2 Bf5 Qg1f1 Bd7 Qd5+ Kb5 Rg1 h1Q Qff2 Qh8 Rh1 Bdc7 Rh3 Bd8 Qdg5 Kc6 Qfg1 Bdc7 Qge5 Bd8 Qd5+
q1N2NKN/R4R2/1b1pQ2k/2qQBR1p/p4b2/P1RRPn2/B3r1n1/3b2q1 b - - 0 1 legal: proof: g4 b5 h4 g5 b4 a5 d4 c5 bxc5 f5 Bd2 e5 dxe5 Ra6 Bc1 Rg6 Qd2 fxg4 Qd1 g3 Bh3 g4 Bf1 Rg5 hxg5 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 Kg7 Kd4 h5 Kd5 d6 f4 b4 c4 b3 c6 g2 c7 b2 f5 g3 c5 Qe7 c6 Qe8 e3 Rh7 e6 Na6 f6+ Kg6 e7 Qd7 e8R Qg7 f7 Nb8 Re7 Qh6 Ne2 g1Q Nbc3 b1Q Nd4 g2 Bb2 Qc1 Ne4 Qb1 Ne6 Bb7 c8R Rg7 Bc4 Qh7 Be5 Qb4 a3 a4 Ba2 Ba8 Ra7 Be7 f8R Nh6 Rf7 Qh8 Qg4 Qe8 Rd1 Nf5 Rd3 Nd7 Qh3 Kh7 g6+ Kh6 Nf8 Nh4 Ke6 Qc5 c7 Rg8 Ng5 Bf3 g7 Bd1 Qf3 Qd8 Qd5 Qe8 Bf4 Ne5 Rh3 Nef3 Be5 Qec6 Rf5 Qb7 Kf7 Bd8 Rg3 Qb8 Rg4 Qa8 Rgf4 Rh8 g8Q Rh7+ Ke8 Rg7 Qge6+ Rg6 Rc4 Rf6 Rcc3 Rg6 Rb8 Rf6 c8N Bb6 Ngh7 Rg6 Rff7 Rf6 Ng6 Rf4 Kf8 Rc4 Rc1 Rc2 Kg8 Re2 Rbb7 Qh2 Rf5 g1B Rc2 Ng2 Rbf7 Qh1 Rcc3 Bh2 Nhf8 Bf4 Bf6 Qh2 Be5 Qg1 Nh8#
1q1N4/2bRN2p/bnKB3n/5p2/4B3/RQn1PPbB/2rRpR1k/RQ1q4 b - - 0 1 illegal: No proof kernel
1q3N1q/Qr3Rr1/1p2B2b/ppRn4/NP1R2RK/P3rQ2/Rqn3Q1/2B1k3 b - - 1 2 legal: proof: g4 g5 h4 e5 hxg5 e4 f4 e3 dxe3 b6 e4 Ba6 e5 Bb7 Qd3 Be4 Qb3 Bg6 f5 c6 Qb5 cxb5 fxg6 Qc7 Nf3 Qc8 Ng1 Qd8 Kf2 Ke7 Kg3 Ke6 e4 a5 c4 d5 b4 f5 a3 h5 g7 d4 g6 d3 g5 f4+ Kh4 d2 c5 d1R c6 f3 c7 f2 c8R Qd2 Bh3+ Ke7 e6 Kd6 e7 Ke5 e8Q+ Kd4 e5 Kd3 e6 f1Q e7 Qf5 Qc6 Nd7 e8Q Ne7 g8Q Ne5 g7 Qd7 g6 Qc7 Ne2 Qb2 Nbc3 Ng4 Nd4 Nd5 Ra2 Re1 Na4 Re3 Ne6 Ke2 Rd1 Rb8 Qe7 Rh7 Rd4 Ke1 Qb7 Qd6 Rc5 Qe5 Qa7 Rb7 Qef7 Qb8 Qf4 Bd6 Qf6 Bf4 Nf8 Bh6 Qf3 Nc7 Qh8 Nd5 g8R Rhg7 Qg2 Re4 Qf3 Nge3+ Bg4 Re5 Be6 Nc2 Qg2 Re3 Qh7 Rgd7 Qf7 Rdc7 Qff3 Rg7 Kh3 h4 Rh8 Rbd7 Rh7 Rb7 Kg4 h3 Kh4 Rgf7 g7 h2 g8R h1Q+ Kg4 Rfc7 Rf7 Qh2 Rg5 Qe5 Rg6 Qh8 Kh4 Rd7 Rgg4 Re7 Rf5 Rg7 Rf7
6QK/r3r1p1/1pQQQrb1/1q3Qn1/2B3PN/pBq1RnP1/2nR4/B1N4k b - - 0 1 illegal: No proof kernel
2B1QrQ1/Bp3n2/5Q1b/4r2R/3n1r1q/pP1pB2N/1q2BPK1/k1N1RBn1 b - - 0 1 illegal: No proof kernel
1N1KB3/3Q2NB/1PRbQ3/2pB3b/4p1nR/2p1P3/2qn1Br1/2QnBnkn b - - 0 1 legal: proof: f4 d5 a4 b5 axb5 g5 fxg5 Nf6 h4 Ng8 c4 dxc4 g6 Qd6 Ra4 Qd7 Ra1 Qd8 g4 a5 h5 Qd3 g7 Ra6 g5 Rg6 hxg6 Qd8 Kf2 Kd7 Ke3 Ke6 Ke4 c5 b4 h5 d4 f6 d5+ Kd6 e3 e5 b6 c3 b5 a4 b7 h4 Na3 h3 Nc4+ Ke7 d6+ Ke6 d7 h2 Nb6 a3 Nf3 a2 Nd4+ Kd6 Kf5 e4 Bd2 Nc6 Ne6 Na5 Qc1 Nc4 Be1 Nb2 b8B+ Qc7 Bc4 Nd1 d8Q+ Bd7 Rb1 a1N Bd5 Nb3 Ra1 Rh4 Ra6 Rg4 Qc8 Be8 Nd7+ Ke7 Rc6 Rg2 b6 Nd2 Qb7 Qd8 Bbg3 Qa8 Qc8 Qa2 Nb8 Qb3 Rf1 h1N Rf4 Bf7 Rh4 Qa4 Nf4 Qa2 Nh5 Qc2 Qb7+ Kd8 Qa7 Bd6 Qa4 Be8 Ke6 Nh6 g8Q f5 g7 f4 g6 f3 Qf7 f2 g8B f1N g7 Ng4 Bh7 Be7 g8B Bd6 Qf5 Bg6 Ng7 Bh5 Ba2 Bg6 Bf7 Bh5 Kd5 Ke7 Be8 Bg6 Qb3 Bh5 Qd7+ Kf6 Qc4 Kg5 Ke6 Bc7 Ke7 Bf4 Qdd3 Bd6+ Kd8 Ngf2 Rh2 Kg4 Qe6+ Kf3 Bd5 Ng4 Rh4 Re2 Qb2 Kg2 Qc1 Kg1 Qb5 Rg2 Qa4 Qa2 Qa7 Qb2 Qad7 Qc2 Bgf2+
2R1QQB1/r2pnb1N/3k1K2/4R2b/p1BP1BB1/2p1B1N1/Pbq2b2/3n1bR1 b - - 1 2 legal: proof: f4 e5 fxe5 g5 h4 b5 c4 bxc4 hxg5 Ke7 e6 a5 Qa4 c6 Qc2 Kd6 e7 Na6 Qd1 Qb6 e8Q Bb7 Qxa8 Nc5 Qd8 Na6 d4 h5 Kf2 f5 Ke3 a4 Kf4 c3 g4 c5 b4 c4 e4 c2 g6 h4 Kg5 f4 g7 h3 e5+ Kc6 b5+ Kd5 e6 f3 e7 h2 e8B c3 Qe1 f2 Bh5 Bd6 Nd2 Bc7 Ngf3 Qe6 b6 Bg3 Ne4 Nf6 g8R Nc7 Rg1 h1B Bc4+ Kc6 Rb1 f1B Rb5 Bf2 Ng3 Nfd5 Qc8 Ba8 b7 Qe4 b8B Ne3 Kf6 Nd1 Ng5 Bf3 Nh7 B3e2 Bh6 c1B g5 Bb2 g6 Qc2 g7 Bf3 Qe2 Bd5 Qe7 Bf7 Be3 Bb7 Re8 Rf8 g8B Ba8 Qcd8 Nd5+ Kg5 Bb7 Bbf4 Ba8 Bhe2 Bh5 Qf7 Ne7 Re5 Kd6 Kf6 Bd5 Bg4 Be6 Qa8 Bd5 Rb8 Re8 Qf8 Bdf7 Rbb5 Rc8 Rbc5 Rc7 Qae8 Ra7 Rc8
1R1K1Nr1/4pN1p/1pr1qQRn/B3NP2/4PQN1/N3n3/R4r2/kr1B1br1 b - - 0 1 legal: proof: g4 a5 c4 g5 b4 d5 cxd5 axb4 h4 f5 gxf5 g4 Na3 Bh6 Nb1 Bg5 hxg5 Ra6 Bg2 Ra3 Bf1 Ra8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kc4 a4 c5 f6 b3 e4+ Kb4 a5 b2 d6 c4 d7 c3 f7 c2 f8N Kb3 d5 b6 f5 Ba6 Kf4 g3 Ke5 g2 Ke6 Bd3 d6 Bb5 g6 Qe8 d8Q Ra6 d7 Nh6 g7 Qh5 g8N Qh3 Be2 Qf3 Nf6 Qh3 Qd6 Ba4 Ra2 Qe3 Bd1 Qd2 Na3 b1R Qf4 Bc6 Ng4 Rg8 Nf3 g1R Nfe5 Bb5 Qc7 Qc3 d8N Bf1 Ndf7 Nc6 Kd7 Nb4 Qd6 Qc6+ Kd8 Nd5 Bd2 Ne3 Qf6 Qe6 Bc3 Ra7 a6 Rc7 a7 Rc6 a8R Rb2 Bf3 c1R Ba5 Rcb1 Rb8 Rf2 Rh5 Rh8 Rg5 Rg8 Ra1 Kb2 Bd1 Rbc1 Rg6 Rb1 Nb5 Rh1 Ra4 Rg1 Na3 Ka2 Rd4 Kb2 Rd2+ Ka1 Ra2+
N7/R6b/1b1r2p1/Nk1B1b1R/p3Q1qB/1p3P2/BK1B1bP1/1QBQ1brn b - - 0 1 illegal: No proof kernel
1r1Q3b/1pb4n/B6Q/4BN2/N2Pr1r1/pPN1Bpqr/R5N1/K1k2bNR b - - 0 1 illegal: No proof kernel
3R2q1/b1p5/Qp1b1n2/r3nRNB/1R1K4/1BQNp2b/1P2P3/bkn1BRR1 b - - 1 2 legal: proof: a4 g5 h4 f5 a5 d5 a6 g4 c4 Nxa6 cxd5 Nb4 g3 f4 gxf4 a5 f5 Na2 Qb3 Ra6 Qc2 Rg6 Qd1 Rg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 f4 Kd7 Kf2 Kd6 Ke3 Kc5 d4+ Kc4 d6 e5 d5 h5 d7 h4 g6 a4 g7 h3 f6 a3 f7 g3 f5 h2 d6 e4 f6 g2 Qd2 Kb3 Nc3 Rh3+ Nf3 Rh6 Kd4 e3 Nd5 g1B Qc3+ Ka4 Bd2 Qe8 d8R Bg4 d7 Bh3 Be1 Nc1 Ng5 a2 Bg2 Rh5 Nf4 Bb4 Rb1 a1B f8R Qe6 f7 Nf6 g8B Qg4 Qc5 Kb3 Rb8 Ka2 d8R Ba3 Qc3 Bc5+ Ke5 Bb6 Bf3 Ba7 Nd3 Bf2 Rf1 h1N Rg1 Bh4 Rf1 Nf2 Rg1 N2e4 Rf1 Nc5 Rg1 Qg2 Kd4 Bg3 Rf1 Bd6 Bg4 Rh6 Bh5 Qg3 Rfe8 Qg2 Re5 Ncd7+ Rc5 Rh7 f8Q+ Rf7 Qe8 Ne5 Qb5 Qg3 Ra8 b6 Rc4 Nd5 Rb4 Rf5 Rf8 Qg2 Rad8 Qg1 Rf7 Nf6 Rff8+ Nc4 Qa6+ Ra5 Rf7 Ne5 Rff8+ Nd5 R8f5 Qg2 Bh7 Nf6 B7g6 Qa8 Be8 Qc8 Ba4 Qe6 Rg1 Qg8 Bd2 Bf1 Nc5 Ncd3 Rd1 Nc1 Nd3 Kb1 Bb3 Bg2 Rdf1 Bh3 Be1
2n3B1/1K2Bkq1/r5p1/2R2bPb/nB1bNqR1/2PR4/R1pNp1R1/QQ1b4 b - - 0 1 illegal: No proof kernel
1Qr5/nqrN1prq/1N3P2/1rNRB2B/1R2QPp1/b2R2kp/6b1/KR3R2 b - - 0 1 illegal: No proof kernel
2NqN2B/K1n1qN1n/2N3R1/2Pn2pR/N1B2kr1/bBQ1p3/Qrp1P3/4n3 b - - 0 1 illegal: No proof kernel
1B2R2Q/bQR1q3/pn3P2/PN1p1B1K/6rN/rr6/N2Npq1B/3rk1nN b - - 0 1 legal: proof: c4 f5 b4 g5 e4 c5 exf5 b6 bxc5 Nf6 h4 gxh4 d4 Bb7 d5 Bc6 dxc6 Ng8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Ke4 a4 d5 a5 e5 f6 b5 f5 b4 f7 h6 c7 b3 c8N b2 c6 a6 f6 h3 c5 h2 c7 Qd7+ Kh5 Nc6 g4 Be7 f8B Qe6 g5 Nb8 g6 Ra7 c6 Nd7 g7 Bc5 Qb3 Nb6 Bh3 Ne7 g8Q Ng6 Ne7 Nh4 c8N Nf3 Ne2 Ng1 Nf5 Rg7 c7 Rg4 Nh4 Qe7 Nbc3+ Kd3 Nd6 b1R c8N e4 Ndb5 e3 Ng3 e2 Ncd6 Bf2 Ba3 Kd2 Na2 Ke1 Nc4 Rd1 Bc1 Rd3 Qb1 Ra3 Nd2 Rh7 Qh8 Rhg7 Nac3 Rb4 Be6 Rbb3 Na2 Rg4 Bf5 Rgb4 Kg6 h5 Bh6 Rc4 Bf4 Bc5 Bb8 Rg4+ Kh6 Bd4 Qc2 Bf2 Qcc8 Bd4 Qb7 Bc5 Ng6 h4 Kh5 h3 Nh4 Qe4 Ndf1 Na4 Bcf4+ Kf2 Rc1 Nf3 Qh6 Qe7 Ng2 Ba7 Nd2 Nb6 Bfc7 Rg6 Rhg1 h1R Bd7 h2 Bf5 Rg7 Rc5 Rg8 Rgc1 Rg4 Qh8 Rd1 Nh4 h1Q R5c4 Qf1 Nh1+ Ke1 Bh2 Qf2 Rc8 Ng1 Re8 Nf3 Rc5 Ng1 Rc7
N1Qr1qQ1/1R6/3rN2r/2bp1Qn1/2rqpQK1/3P2BN/2b1Pp2/1B1RQk2 b - - 0 2 illegal: No possible last move, all moves rejected
Q2Nr2r/r1N1Q2p/R4b1P/K3p3/QBN1P3/3Bp1NR/2n1r2n/2kr1Nb1 b - - 0 2 illegal: No proof kernel
n3Qr2/2NprpKQ/2Bkb3/BrRp1R2/3PPR1n/bNR3R1/5Q2/r3b3 b - - 0 1 illegal: No proof kernel
n1K4n/1Nb3R1/1pN1B1rQ/r5b1/P2R1Q2/N1Bp3B/p1BPb2r/2B3bk b - - 0 1 illegal: No proof kernel
bbB1n1k1/BNr3p1/Q1bN1Q2/1p5n/1Q1N2Pr/1Pp2R2/2Q3b1/rR2Q1K1 b - - 0 2 legal: proof: c4 b5 a4 d5 cxd5 h5 f4 e5 a5 exf4 Qc2 Qf6 Qh7 Qb6 axb6 Be7 Qxh5 Bd6 Qh7 Bf8 Kf2 a5 d4 f5 h4 Kf7 e4 c5 h5 a4 b7 c4 d6 a3 d7 a2 d8Q c3 b3 f3 h6 f4 d5 Ra3 e5 Bd6 Rh3 Bc7 d6 Ra4 d7 Ra8 Nd2 Ra5 Nc4 Nc6 b8Q Nf6 Qc2 Ra6 h7 Ra4 Rb1 a1R Qb7 Ra6 Be3 Bb8 Ne2 Na5 Nd4 Ra7 Qa6 Rc7 Kg1 Nh5 g4 Bb7 Bd3 Bc6 Bf5 Nb7 Qg5 Re8 h8Q Nd6 Rg3 Rg8 d8N+ Kf8 e6 Ne8 Qhh6 Rh8 e7+ Kg8 Qd6 Rh6 Bc8 f2+ Kh2 f1B Qb4 f3 Nb7 f2 Qf6 Rh8 Rf3 Bg2 Ncd6 f1B Kg1 Rh6 N4f5 Bd3 Ba7 Bde4 Nd4 Rh8 Na5 Ba8 Nab7 Bc6 Qe2 Nf4 Rf2 Rh4 Qc2 Nh5 Rf4 Bf1 Rf3 Bg2 N6f5 Nd6 e8Q+ Kh7 Qee6 Ne8 Qe1 Kg8 Nfd6
BBbRk3/P3B1np/3b4/N2r1pr1/1N4pn/4Q3/2BRKPB1/bnRQ1n2 b - - 0 1 illegal: No proof kernel
1kQr3n/2rQ4/R2N3R/1P2pq2/1RP1bp2/pR1Np3/4RB1b/n1rNK2B b - - 0 1 illegal: No possible last move, all moves rejected
2b1r1NQ/b2kNQ2/B1pP1N1r/1np5/8/3Bp2n/n1PqN1pK/1RRQ1N2 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 d6 b4 Rh7 bxa5 Rh6 Ba3 Rh8 Bc5 dxc5 d4 e5 f4 b5 Kf2 g5 Kg3 b4 a4 e4 h4 b3 h6 b2 h5 e3 f6 g4 h7 c6 d5 Qc7 d6 Qd7 f5 Ra6 f7+ Kd8 f6 Qb7 h6 Ra7 a6 Qb3 a5 Qe6 Bd3 Qa2 Nd2 b1N Nf1 Bf5 Ne2 Nd2 Rc1 Nc4 Kh2 Ra8 a7 Qb2 a6 Be7 f8Q+ Kd7 f7 Nf6 Qg7 Re8 h8N Nh7 Ng6 Ng5 h7 Bd8 h8N Bb6 Ne7 Qd4 Ng8 Na3 Ng6 Nh3 N6e7 Nb5 f8Q Qb4 Qh8 Qd2 Qf7 g3+ Kg2 Ng5 Kg1 g2 Kh2 Nh3 Rb1 Kd8 Rc1 Bc8 Rb1 Nd7 Rc1 Rb8 a8B Nf6 a7 Kd7 Bb7 Nd5 a8N Ndc3 Nc7 Na2 Ncd5 Ra8 Rg1 Ra4 Ba6 Ba7 Rh1 Rh4 Ndf6+ Kd8 Rb1 Qc1 Nfg3 Rh6 Qg1 Qd2 Qe1 Qa5 Qd2 Qc3 Rhc1 Qa5 Qd1 Qd2 Nh7 Kd7 Nf1 Qe1 Bb7 Qa5 Ba6 Qd2 Nhf6+
2k1bBN1/5r1p/1QN3R1/bQ3r2/1r2P1QQ/Rp2Q1np/B1pKPn2/1R3q2 b - - 0 1 legal: proof: h4 d5 c4 a5 cxd5 g5 b4 gxh4 bxa5 e5 f3 e4 fxe4 Bf5 Qa4+ Bd7 Qd1 Bc8 g4 Kd7 d4 b5 a4 f5 g5 c5 a6 b4 a7 f4 d6 f3 g6 c4 a5 c3 d5 c2 a6 f2+ Kd2 Be7 g7 Bb7 Ra3 Qc8 Nf3 Qd8 Ne5+ Kc8 d7+ Kc7 d6+ Kb6 Nc6 Qe8 d8Q+ Kb5 d7 Nf6 g8R Qf7 Bh3 f1R Rg6 Rf5 Qg1 Rf8 Qg4 Nh5 Nc3+ Kc5 Qc7 Ng3 d8Q Nd7 Nd5 Ne5 Nf6 Rb8 a8Q Nd3 a7 Nf2 Ng8 Bf6 Qd3 Bd8 Qe3+ Kb5 Qd7 Ba5 Bb2 Ka6 Bg7 Qf6 Rb1 Rf7 Bf8 Bc8 Qe7 Bd7 Qd8 Rb7 Qab8 Be8 Qe5 Rb6 Qb5+ Kb7 Qe7+ Kc8 a8Q+ Rb8 Qaa7 Qa1 Qab6 Rb7 Rb2 Qf1 Rb1 Rb8 Qgf4 Rb7 Bg4 h3 Qh4 Rb8 Bh5 Rbb7 Qfg4 Rbc7 Nd8 Rfd7+ Rd6 Rc4 Bf7 Rb7 Bd5 Rf7 Nc6 Rd4+ Qed3 Rc4 Rg6 Rd4 Ba2 b3+ Ke3 Rb4 Kd2 Nfh1 Qdd4 Nf2 Qe3
2B4k/1Q1Kp3/1NR2Bp1/p1bB1BPN/2qrRQ1p/2rn1br1/3N1Pn1/2B5 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Ng8 h6 Qb6 Bd2 Qf6 Bc1 Qg7 hxg7 Bb7 Rh6 Ba6 Rh1 Bc8 Kd2 Kf7 Kd3 a5 Ke4 d5+ Ke5 h5 b4 h4 c4 d3 g4 d4 c5 d2 f6 d3 c6 Bd7 c7 Be8 c8B Nh6 b6 Kg8 Ke6 Nd7 f7+ Kh7 g8B+ Kg7 g5 Ng4 b5 Ndf6 b7 Rh6 b8N Nh5 b6 Nh2 b7 Rh7 Ne2 Ng4 Bh3 Ne5 Re1 Kh8 Nd7 Bg7 Qa4 d1Q b8Q d2 f8B Qc2 Nf4 d1R Re4 Rd4 Nb6 Bc6 Nd2 Nd3 Qb7 Bd5+ Kd7 Qc4 Ne6 Nhf4 Ra2 Ng2 Bf5 Be5 Bh6 Bd6 Rc2 Rf7 Ng7 Ba3 Qb4 Rf6 Qd6 Bc5 Qf4 Rf8 Re5 Bf3+ Bd5 Rf6 Re4 Rc6 Ne6 Rb8 Bg7+ Kg8 Bf6 Kh7 Ng7 Kh8 Qbc7 Rb7 Na8 Rb3 Qb7 Ra3 Rc3 Rb6 Rc2 Rbb3 Nb6 Rc3 Rb2 Bd6 Rb5 Bb4 Rc5 Rab3 Rc7 Bc5 Rc6 Rb1 Qh2 Ngf4 Ba3 Rg1 Bc1 Rg4 Qg3 Ng2 Qf4 Rg3 Nh5+
3k1KN1/3pP1N1/2R1bp1Q/p3p1RB/2qrPq1b/4Q1n1/1B5r/1Q1Q1QnN b - - 0 1 illegal: No possible last move, all moves rejected
1bkBBqNR/1p1R2RR/2pQPQ2/2p5/N5n1/rn2R1pK/1B3rP1/1n2r3 b - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 a5 b4 d6 bxa5 g4 h3 g3 c5 Bg4 hxg4 dxc5 d4 Kd7 a4 f5 e4 h5 a6 h4 d5 h3 d6 h2 g5 f4 e6+ Kc8 e5 f3 a5 f2+ Ke2 Rh6 Kf3 Rf6+ Kg4 Rg6 e7 Bh6 e8R Rf6 g6 Rf5 g7 Rf4+ Kh3 Ra7 Ne2 Nc6 d7+ Kb8 Nbc3 Rf6 Qd6 Nce7 Nf4 Nf5 Nfd5 Ne3 Bb2 Rf3 Ne7 Nc2 Bb5 f1N Rd1 Rd3 Na4 Nf6 g8R Rd5 Rg7 Na1 Ng8 Ng4 e6 Qc8 d8B Rd2 Ree7 Be3 Be8 Rf2 Rd7 Nd2 Rde1 Bf4 Re3 Ra8 Bdf6 Qd8 a7+ Kc8 a6 c6 Bg5 Nab3 Bh4 Rb8 a8Q Nb1 Bg5 Qe7 Qa7 Qf7 Bd8 Ra8 Qb6 Qf6 a7 Qf8 Qb4 Be5 Qc3 Bf4 Rd1 Be5 Rd5 Bf4 Rh5 Be5 Rhh7 Bf4 Qf6 Be5 Kh4 h1R+ Kg5 Re1 Kh4 Rb8 a8R Bf4 Ra5 Ra8 Kh3 Be5 Nc3 Ra6 Ra2 Ra3 Na4 Bf4 Ra1 Nc3 Rd1 Nb1 Rd5 Be5 Rh8 Bf4 Rdh5 Be5 R5h7 Bf4 Qd1 Bb8 Qd6
B1Nn1Rn1/3Q1b1b/2p1q2k/1Np4p/2pBN3/R1K1BBbn/2Pr3P/3Q1B2 b - - 1 2 illegal: Other
nq1BBK2/pkB5/1N2P3/PQ1pQ2B/B6b/N2r1p2/1pb1bR1R/2n1n1N1 b - - 0 1 legal: proof: d4 c5 b4 cxd4 f4 e5 fxe5 b5 e4 h5 g4 Bb7 gxh5 Na6 e6 Rc8 e5 Rc5 bxc5 Bc8 Kf2 f5 Kg3 d5 Kf4 g6 a4 d3 c4 d2 h4 b4 e7 Kd7 Kg5 Kc6 h6 b3 h7 f4 e6 b2 a5 Bb7 h5 Nb4 h6 Qd6 e8B+ Qd7 Qb3 d1B Be2 Ne7 Kf6 g5 Kf7 g4 Na3 g3 Bh5 f3 Bg5 g2 Rh2 Nd3 Qb5+ Kc7 c6 Ne1 c5 Kc8 c7 Bc2 Bf4 Rg8 h8B Qd6 h7 Ba6 Bf6 Rg4 h8Q Qe5 Bg3 Rd4 Bfh4 Qd6 Qe5 Rd3 Rd1 Bg7 Rd2 Bf6 Kf8 Qb6 Bf4 Kb7 c8N Bg5 Rf2 Bf6 Nh3 g1N Bhg5 Ne2 Ng1 Nc1 c6+ Ka8 c7 Qb8 Nb6+ Kb7 Bh4 Nc8 Bhg5 Bh8 Bd8 Bf6 Nbc4+ Nb6 c8B+ Ka8 Bcd7 Bh4 Qg7 Kb7 Bfc7 Rb3 Qe5 Rd3 Qc5 Na8 Nb6 Rc3 Qb4 Be2 Ba4 Rd3 Qb5
8/N2Nnqp1/P3N1nN/1pNkBb2/4R3/1RnBrr1p/2QK2Pp/1B2r2Q b - - 0 1 illegal: Other
qR1Q4/B1ppQKQ1/2P1N3/N3RR2/4P1b1/k1rp2b1/B2p2Qn/2q1nn1Q b - - 0 1 illegal: Other
Kb6/b2N1R2/B3k2P/2npB1q1/1p1pN2Q/B1RbB1rN/1P2qp1Q/1B1r4 b - - 0 1 legal: proof: g4 e5 a4 c5 d4 cxd4 f4 h5 gxh5 b5 fxe5 Na6 a5 Nc5 a6 Nb7 axb7 Ke7 Kf2 a5 Kf3 f5 b8B g5 h4 f4 Ke4 g4 Kd5 f3 c4 f2 e4 g3 e6 d6 Kc6 a4 c5 g2 h6 d5 h7 a3 h5 a2 h6 Ra7 e5 Ra5 Bd3 Ra3 Qh5 Ra7 Nc3 Ra5 Ne4 Ra4 Bb1 Bg7 Rh3 Ra7 Be3 Rd7 Qh4+ Nf6 Bd6+ Ke8 e7 Kf7 e8N Ba6 Rf3 Ra7 Nh3 Rg8 h8B g1B Rf5 Bh2 e6+ Kg6 e7 Kf7 Rf4 Ke6 Rf3 Nd7 Rf7 Bge5 N8f6 Rg3 e8Q+ Qe7 Qb8 Qe8 Be7 Qg8 Bf8 Qg5 Bd6 Ra8 Kc7 Bf4 c6 Nc5 Nd7 Ra7+ Kb6 Ra8 Qc7 Rg8 Ka7 Rg1 Bd3 Rd1 Rc1 a1Q Bb1 Qa3 Bf8 Qd3 Ka8 Qe2 Rc3 Bd6 Be5 Rg6 Qd8 Bb8 c7 Ba7 c8B Bg3 Beg7 Bgb8 Be5 Nb3 Ba3 b4 Qg3 Nc5 Qh2 Bd3 Bb7 Qf4 Bc8 Rg3 Qh4 Qg5 Ba6
1n3N1N/4pQ1K/1pRB1q2/p1B1b2N/rqQb4/P1Np1R2/qP4B1/k5rN b - - 1 2 legal: proof: f4 c5 g4 f5 e4 Nc6 exf5 Nb8 d4 Kf7 f6 Ke6 f7 cxd4 f5+ Kd6 f6 Kc6 h3 g5 Qd2 b6 Qd1 Ba6 Na3 Bd3 Nb1 Bf5 gxf5 g4 h4 Na6 Bh3 Nc5 Bg2+ Ne4 Bf1 Ng5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 Kf2 Kd5 Kg3 a5 Kh4 h5 c4+ Ke4 g6 d5 Kg5 d3 g7 Kd4 Kg6 g3 c5 g2 a3 d2 c6 h4 c7 h3 c8Q h2 Nc3 Rh7 Nge2+ Kd3 Qb3 g1B Qcc4+ Ke3 Bg2 d4 Ng3 d3 Rb1 Bf2 Rf1 Qd4 Nh1 Rh4 Ra1 Re4 Kh7 Qc5 Rb1 Qb4 Ra1 Bg3 Rb1 Be5 Rf2 Nh6 g8N Bg7 f8N Nf7 Ng6 Nd8 f7 Nc6 f8N Nb8 f6 Bd4 f7 Bge5 Nf6 Rf4 Ng3 h1Q+ Nfh5 Qh4 Nh8 Qf6 Nh1 Rg4 Na2 Re4 Rf3+ Ke2 Ra1 d1Q Be3 Qb1 Nc3+ Ke1 Bg1 Kd2 Bh2 Qa2 Rc1 Bc7 Bd6 Rg4 Bc5 Bce5 Ne6 Rh4 f8B Rg4 Bg7 Rh4 Rcf1 Re4 R1f2+ Kc1 Nf8 Rg4 Qf7 Rf4 Qbc4 Rh4 Nb5+ Kb1 Rc2 Ka1 Nc3 Rg4 Bh3 Rg1 Bg2 Ra7 Bh6 Rc7 Bf4 Rc8 Nfg6 Rg8 Nf8 Rg4 Re2 Bc7 Re6 Bce5 Rc6 Qbb3 Be3 Bf4 Bc1 Bf2 Bd6 Be5 Qcd5 Ra4 Be3 Qb4 Bec5 Bfd4 Qc4
1k1r2N1/Q2R2RK/n3q3/b1BpPRpQ/4r1B1/qp3p1N/3P3B/1BBq3n b - - 0 1 illegal: No possible last move
1bKQN3/6k1/2Pp1RqN/1Qq1Rp2/2pR2r1/n1RBr1p1/2RPnB1N/1q6 b - - 0 1 illegal: No proof kernel
B1BB3N/NnN5/1pBrQ2p/1pBr2nQ/Rb3kpR/2P2r1P/8/K3nb2 b - - 0 1 legal: proof: d4 f5 b4 c5 dxc5 a6 f4 Nh6 g4 Qb6 gxf5 Qc7 e4 Rg8 e5 Rh8 f6 Ng4 b5 axb5 f5 Qc6 f7+ Kd8 Nf3 Nh6 Ng1 Qf6 exf6 Ng8 Kd2 Kc7 Kc3 g5 Kb2 e5 a4 d5 c6 Kd6 a5 d4 c7 e4 a6 Ke5 a7 h6 Bg2 b6 Ne2 e3 Nbc3 d3 Nd5 d2 c3 Rh7 Ra4 Na6 Ka1 Ne7 Nd4 e2 Nc6+ Kd6 Bf3 Bd7 c8B e1N Nc7 Rb8 a8B Ng8 Na7 Ke5 Bfc6 Nc5 Qh5 Nb7 Ba3 g4 Be7 Be6 Bd8 Bb4 f8N Kf4 f7 Bc4 f6 Bf1 Ng6+ Ke3 f8B d1R+ Kb2 Rf7 Nh8 Rd5 Bc5+ Kf4 Ka1 Rf8 f7 Nf6 Bde7 Rfd8 f8Q R8d6 Qfe8 Ne4 Bd8 Ng5 Qe6 Rd3 Rg1 Rf3 Rg3 Rd5 Rh3 Rd6 Rh4 Rd5 h3 Rd6 B8d7 Rd5 Bde7 Rd8 Bc8 R8d6 Bd8
2N1B2b/2B1q1k1/K4nRN/BQBQ1pp1/4n1PN/Pb1R3p/pr4bB/2b5 b - - 0 1 illegal: No possible last move
6K1/bk2Np2/pR1B3B/QNP2BQr/5pnr/q2nRp2/5P2/Q1BBnn2 b - - 0 1 illegal: Other
KNQN1r2/6BN/k1p1Bpr1/4P2p/p1Nr2RR/NR3P1n/qnQ5/r4b2 b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Na6 a4 Be7 h4 Bc5 a5 Bb6 axb6 gxh4 Qd3 Nb8 Qd5 Ne7 Qd1 Ng8 Kd2 a5 Kc3 d5 Kd4 Kd7 Kc5 h5 e4 f6 g4 h3 e6+ Ke8 f3 a4 e7 Kd7 e8N d4 b7 h2 e5 d3 g5 d2 b6 Nc6 b8Q Rh6 g6 Ra7 b7 Nge7 g7 Na5 g8R Nec6 b5 Qe7+ Nd6 Rg6 b6 Rh6 Na3 Qg7 Bc4 Nd4 Rb1 Ne2 Rb3 Rg6 Nh3 Qf7 Ng5 Nf4 Qc2 d1R Nh7 Nh3 Bh6 Ra8 Bg7 Rd4 Bd5 Nc4 Be6+ Ke7 Kc6 Nb2 Ndc4 Bd7+ Kc5 Bb5 Qc8 Ba6 Kc6 Rb8 Rg1 h1R Rg4 Ra1 Rh4 Ra8 b8N Bb5+ Kb7 c6 Nd7 Rb8+ Ka7 Ba6 b7 Bb5 Qc7 Rf8 Nc5+ Ke8 Ka8 Ba6 Nb6 Bf1 Qc8+ Ke7 Bg4 Qc4 Ne6 Qd5 Nd8 Qc4 Qb8 Qe6 Nbc4 Kd7 Qa7 Kc7 Qc5 Qd5 Be6 Qe4 Qd5 Qe1 Qde4 Qb1 Qf5 Qa2 Bh8 Rh6 Rgg4 Rg6 Bg7 Re4 Bd5 Rf4 Ne3 Rb4 Qc8+ Kb6 Bg8 Ka5 Be6 Rd4 Nec4+ Ka6 b8N#
1R2r1B1/2Bp1Rk1/1NBrn3/PKN1qnNB/2QP4/1p1nQ3/6pp/2n2b1B b - - 0 1 illegal: No proof kernel
1NN2rQ1/B2pr2b/2pR1p2/1NP1RPR1/2Nrb1k1/4nN2/QK4Bp/2n4r b - - 0 2 illegal: No possible last move, all moves rejected
3k4/1K3N2/2pNpqqp/RQ3B1r/4Q1Rr/Bpn3Rr/1PbRPR1Q/1r6 b - - 0 1 legal: proof: c4 f5 g4 fxg4 a3 b5 Nh3 d5 cxd5 g6 Nf4 b4 Nh3 b3 Ng1 Bg7 h4 g5 Bh3 g3 Kf1 g4 Ke1 Bh6 Bf1 Bg5 hxg5 Nc6 Nh3 Bd7 Ng1 Nb4 axb4 Bc8 d4 a5 Kd2 c6 Kc3 h6 Kc4 a4 Kc5 g2 f4 g3 b5 e6 f5 a3 f6 a2 b6 Qd7 d6 Ba6 f7+ Kd8 f8R+ Qe8 d5 Bb7 g6 Ra4 d7 Ra7 g7 Ba6 b7 Ne7 Kb6 Rg8 b8Q+ Bc8 Nc3 Ng6 Qd4 Ra3 Bf4 Ra8 Nf3 g1R Rh4 g2 Ng5 Nh8 Qe4 Ke7 d8R Rh1 Nf7 g1R Nb5 Ba6 Bh3 Rb1 Nbd6 Ng6 Bf5 Bd3 Rg4 Bc2 Kb7 Ra4 Bd2 Rh3 Bb4 Nf4 Ba3 Ng2 Rg3 Ne3 Rg4 Nd1 Rg3 Rh8 g8R Nc3 R8g4 Rg8 Qc7+ Kf6 Qb6 Ke7 Qb5 Rg5 Nc8+ Kf6 d6 Rgh5 d7 Rd4 Ncd6 Ke7 Rfg8 Qf8 Rf4 Qg7 Rf2 Qf6 R8g6 Rdd1 R6g4 Rdh1 Rd3 R1h2 Rdg8 R3h4 Rd2 R2h3 R8g5 Rbh1 Rag1 a1Q R1g3 Qe1 Rg8 Qa1 Ra8 Rb1 Ra5 Qg6 Bb4 Qa4 Ba3 Qd4 Kc7 Qdf6 Kb7 Kf8 d8Q+ Kg7 Qdb6 Kf8 Qbd4 Ke7 Qg2 Kd7 Qde4 Ke7 Qh2 Kd7 Ng5 Kd8 Ngf7+
8/2q1pR1q/p1p1BBrQ/4b2R/1bB1bNN1/Q1Pp2bB/P1B4k/n4KN1 b - - 0 1 illegal: No proof kernel
QN3Rb1/1N3bbb/1RQQ1B2/3p2p1/r2n2P1/1p5p/3PQ1rk/bRQB1K2 b - - 0 1 legal: proof: f4 a5 h4 e5 fxe5 b5 c4 b4 b3 Qg5 h5 Qg6 Rh3 Nc6 Rh2 Nd4 Rh1 Nb5 cxb5 a4 Qc2 axb3 Qd1 Qd6 Nc3 g5 Nb1 Qg6 hxg6 Be7 Rh5 Bc5 Rh1 Bf8 a4 Ke7 g4 Ke6 e4 f5 b6 c5 g7 h5 b7 d5 b8Q b2 a5 b3 a6 h4 a7 h3 Be2 c4 Kf1 c3 Na3 b1B Nb5 c2 Nd6 f4 Nb7 f3 Bb2 f2 Qc1 Ne7 g8R Nf5 Bd1 Nd4 Nf3 Bg7 Rf8 Bd7 Ra4 Be8 Rb4 Bf7 Qc7 Re8 a8Q Rh6 Qcb8 Rf6 Rb5 Rc8 Ba1 Rc4 Bb2 Ra4 Rb6+ Ke7 e6 Rf4 Ng1 Kf6 Qd6 Rf3 Bc3 Rg3 Ne2 Rg2 e5+ Kg6 Qb2 c1B Qba3 Bf5 e7+ B5e6 e8Q Bb2 Qec6 Ba1 Qc1 Bg8 Ng3 Bf7 Nh5 Bg8 Nf6 Bef7 e6 Rg3 Ne4 Rg2 Nec5 Kf6 Qdd8+ Ke5 e7 Kf4 e8Q Kg3 Na6 Bh7 Nb8 Bhg8 Rg1 Kh2 Qde7 Ne2 Bf6 Nd4 Q7d7 Nb5 Ke2 f1B+ Ke1 Bd3 Qe2 Nd4 Kf1 Bdh7 Qde6 Nf5 Qed6+ Be5 Q1c4 Bh5 Bc2 Kg3 Ke1 Bhf7 Rh1 Kh4 Rf1 Ba1 Qc3 Nd4 Qb2 Rg1 Kf2 Rg3 Rb1 Rg2+ Ke1 Ra2 Qc1 Ra4 Qde6 Kg3 Kf1 Kh2 Bd1 Bhg6 Qe7 B6h7 Qed6+
2rk3q/1bQN1pQQ/1B1bQP2/1prBR3/2Rp1b1N/Q2p2B1/1P6/1qb2K2 b - - 0 1 illegal: No possible last move, all moves rejected
rkN1q3/2NN4/p1B2Rpp/BnPr2pN/4p3/1R2bP2/bNQ1Kn2/BQ6 b - - 0 1 illegal: No proof kernel
4Bb1N/KN1R4/npp3R1/rpNP1p1k/3B1P2/3QNn2/3Qbnp1/1qN1Q3 b - - 0 1 legal: proof: c4 h5 g4 d5 gxh5 a6 cxd5 Qd7 b4 Qd8 b5 axb5 d6 Nd7 d4 Nc5 e4 Kd7 e5 Ke6 d7 Ra6 Ba3 Rd6 exd6 Kf6 d5 Na6 Bc1 Nb8 Ke2 g5 Kd3 e5 h4 c6 a4 e4+ Kd4 e3 Kc5 e2 f4 e1N h6 Kg6 h5+ Kh7 a5 f5 a6 g4 a7 g3 a8Q g2 Qd2 Be7 Ra7 Bh4 Na3 Nc2 Ne2 Qf8 Kb6 Na1 d8N Qe8 d7 Bf6 Ne6 Be5 d8N Nf6 Nc5 Bd4 Nc4 Bb2 Ne3 Ba3 Bb2 Rf8 Nc1 Na6 Bd4 Nc2 Be2 Be6 Rh4 Ne1 Rg4 Bf7 Rg6 Qe4 Qb8 Ne8 Qe5 Qb1 Qe4 Rg8 Qed3 Nd6 Bg4 Nf3 Qe1 Rg7 Qed2 Kg8 h7+ Kf8 h8N Ne4 h6 Nf2 h7 Ke7 Rg5 Bh5 Rg6 Bb4 Ra8 Rg8 Ka7 b6 Ndb7 Re8 Rd8 Kf8 Rf6+ Kg7 Rd7+ Re7 Ng6 Kh6 h8Q+ Rh7 Qe8 Rf7 Nc2 Rf8 Qee1 Rc8 Ne3 Re8 Ne4 Bf8 Nec5 Rc8 Rff7 Rb8 Nh8 Re8 Rg7 Re4 Bf6 Ra4 Bd4 Ra5 Rg8 Ng5 Bf3 Bg4 Rg6+ Kh5 Be4 Be2 Bf3+ Kh4 Bh5 Nf3 Rg5 Qa2 Be8 Qb1 Rg6 Kh5 Q3c3 Bd1 Qcc2 Be2 Qcd3
1N1RBb2/1k3R2/NnQp1Nbr/K1p2pq1/Np4p1/1PPr4/1R3B1b/2Q1N3 b - - 0 2 illegal: No possible last move
R4r2/Bpp2R2/2kpB3/B1Q1pK1R/6p1/R2nQn2/2PP1r2/bn1N1NRb b - - 1 2 legal: proof: e4 a5 b4 axb4 a4 h5 g4 f5 gxh5 d6 exf5 Kd7 a5 Ke8 a6 Be6 a7 Qc8 Be2 Na6 Bf1 Qb8 axb8Q+ Kd7 Ke2 g5 Kf3 g4+ Ke4 b3 h4 b2 f4 Nh6 f6 Rg8 f5 Rh8 f7 Ba2 f6 e6 Qa7 Be7 f8R Nb4 f7 Rh7 Nf3 Rc8 Bc4 Rd8 Nc3 b1N Rg1 Bf6 Ba3 Rc8 Qe1 Bd8 Nh2 Rg7 Qc5 Bf6 Nd1 Bc3 Nf1 Rd8 Qee3 Nc6 Bb4 Rb8 Ba5 Bb3 Ra3 Nf5 h6 Rg8 h5 Nh4 h7 Rg6 h8R Rf6 h6 Nf3 h7 Ba1 Re8 Rf5 f8R Nb4 Bd5 Rd8 Bc4 Nd3 Rf7+ Kc8 Reg8 Rf8 Rg5 Ba4 Rh5 Bc6+ Bd5 Rf6 Rg8 Kd8 h8B Rf5 Bhc3 e5 Bb6 Kc8 Bca5 Rf6 Ba7 Rf5 Rf6 Kd7 Rgh8 Nh4 Rg8 Rf2 Rgh8 Nf3 Kf5 Rf7 Ra8 Rf8 Bf7 Bd5 Qcd4 Kc6 Be6 Nb4 Rf7 Nd3 Kg6 Nh4+ Kg5 Bh1 Qb4 Nf3+ Kf5 Bc3 Qbd4 Ba1 Qc5+
2N4B/1Qrr3B/1p4pq/1B3nP1/1Pn1b2n/Q1rkb1Q1/1n2BRN1/n3RBK1 b - - 0 1 illegal: No possible last move, all moves rejected
NNqr4/5r2/2R3pB/3p1nqB/q1B2BPQ/qBnP1K1b/k4b1Q/1qR1Q3 b - - 0 1 illegal: No possible last move, all moves rejected
br4Q1/2NR4/qBQ2NpK/3n4/3p2r1/b1nB1RP1/n2P1BNk/N1rN2rq b - - 0 1 illegal: No proof kernel
r4R2/r1brnRnQ/2p1N2q/Qb2NB1n/p3rB1q/2K5/P1P3NQ/kQ4Q1 b - - 0 1 illegal: No possible last move, all moves rejected
Q2nQ3/2b3p1/2Bkr3/p1q5/bBn2K1N/NBQ1Q1rR/P2bq1P1/1r1b1RQ1 b - - 0 1 illegal: No proof kernel
K1Q3Rn/R2r4/2B2NQB/2Q2rn1/1bb2pQ1/BkN3p1/r3qPP1/1b2b1Qr b - - 0 1 illegal: No proof kernel
4NQbr/1B1n4/B1p1NQ2/5N1k/pn1rB1qp/nB2bR1P/P4b1K/1r1R2B1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 f4 g5 fxg5 Ba3 Kd2 Be7 Ke1 Bf8 Kf2 d5 Kg3 f5 e4 Kf7 b4 Kg6 h3 h5 b5 a5 b6 d4 e6 h4+ Kh2 a4 g4 c3 b7 d3 e5 d2 e7 f4 e8B+ Kh7 g6+ Kh6 g5+ Kg7 e6 f3 e7 c2 Ne2 f2 Na3 Qd7 Nb5 Na6 b8Q Rh7 Nd6 Qe6 Bc6 Rh8 Bb7 c6 Nd4 Qg4 Qf3 d1N Be3 Nb2 Rd1 Nb4 Bfa6 f1R Bg1 c1B Qf4 Nf6 e8N+ Kg8 g7 Kh7 g8B+ Kg6 Bd5 Kh5 g6 Be3 g7 Nc4 g8B Be6 Rd3 Rb1 N6f5 Bc5 Be4 Nd7 Rb3 Bf7 Ne6 Na3 Qbe5 Bcd4 Qf6 Rd8 Rc3 Bf2 Rf3 Bde3 Qd6 Ne5 Qc5 Rd4 Qf8 Nd7 N6c7 Bg6 Bb3 Bh7 Ne6 Bg8 Qd8 Qg6 Qdf6 Be1 Bf2 Qg7 Rf1 Qg4 Bg1 B1f2 Rd1
2rR4/Qp1R3Q/2N3bR/3r2qp/1k1nRbQ1/p1r1B3/1PRK3P/1b1nN1nB b - - 0 1 illegal: No proof kernel
2BbB3/1np2KRq/1q1Q1n2/2B2p2/2Pn1P2/bQR1N2b/2R1r1Bp/N3kr1B b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 b4 a5 f4 Kg3 e4 Kf2 g4 h5 c4 f5 g5 d6 e6 a4 e5 a3 b6 a2 e7 h3 e8B h4 b7 h2 g6 h3 e6 Rh6 g7 Rh7 e7 Ra7 b5 Nc6 b8R Rh6 b6 Na5 b7 Re6 Bg2 Re2 Bc6 Bd7 e8B Qf6 Qb3 Ke1 Na3 Qg6 Rb1 a1B Rb2 Ra8 Rd2 Bf6 Rc2 Bd8 Be3 Qh6 Bc5 Nf6+ Kd4 d5 g8B Ra6 Be6 Rb6 Qd3 Rb1 Ra8 Ra1 b8Q Nb7 Ra5 Qg6 Rb5 Bd6 Rb3 Rd1 Rbc3 Rb1 Ba4 Bc6 Bc8 Rc1 Nb1 Qh7 Nd2 Rb1 Nb3 Rd1 Bb6 Ba3 Bc5 Rc1 Na1 Qg6 Qe3 Rb1 Ke5 d4 Ke6 d3 Bb5 d2 Qe5 d1N Ba4 Be4 Bac6 Ne3 Qd6 Bf3 Be4 Bg4 Bd5 Qh6 Kf7 Rd1 Qa7 Rc1 Qab6 Rb1 Qb3 Rd1 Rc1 Nc2 Bdf3 Nd4 R1c2 Rd3 Bd5 Rf3 Bdc6 Rf1 Nf3+ Kf2 Nd2 Ke1 Rg1 h1Q Bcf3 Qh2 Bh1 Qf2 Rg3 h2 Bfg2 Bh3 Rg6 Qh7+ Rg7 Rg1 Nf1 Qe3 Kf8 Qe6 Ne3 Rf1 Qd7 Qa6 Qd6 Qb6 Kf7
2BQN1kr/Rp2p3/n4q1R/1R1Kp2b/1Pr5/R1b1Pr1n/1B2N2Q/1R2q1Bb b - - 0 1 illegal: No proof kernel
2qQ1rR1/p2Q1pb1/2q1q2k/1bN1r2n/3N3Q/PB1n1PB1/3NR1pQ/K2Q1r2 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 Kd2 d5 Kc3 b5 Kb2 g5 c4 b4 h4 d4 e4 g3 a3 g2 c6 b3 c5 g4 e6 g3 e7 d3 f3 d2 h5 Bh3 h6 Qa5 h7 Bg7+ e5 Bh6 c7 Be3 c8N Bf4 c6 Na6 c7 Qd5 Nb6 Qe6 Nd7 Nf6 Rh2 Nb4 Bc4 Bh6 Ne2 g1R Nd4 Bg7 Nc5 Nh5 Re2 Rf8 h8Q Bf1 Qh6 Rd8 c8Q g2 Qb8 Rc8 Qg5 Rd8 Qh4 Qc8 Ra2 Nd3+ Ka1 Rd5 Re4 Be2 Rg4 Rf1 Rc2 Bf6 Rg8 Bg7 Qde1 d1Q Bf4 Qd2 Qd1 Qe3 Bg3 Qh6 Nd2 b2+ Kb1 Qc6 Bb3 Nc1 Qd6 Bb5 Qh6 Nd3 Qh2 Nhf4 Q6h4 Q6e6 Nc4 Nh5 Re2 Qcc6 Nd2 Qec8 Kc2 b1Q+ Kc3 Qa1+ Kc2 Qc3+ Kb1 Qc4 Ka1 Q6e6 Nc6 Bh8 Nb4 Qec6 Nc2 Bf6 Na6 Kd7 Nd4 Bg7 Nc5+ Kc7 e6+ Re5 e8Q Kd6 e7 Q4e6 Nd7 Qed5 Nc2 Ke6 Nc5+ Kf5 Qd8 Kg6 e8Q Kh6 Qed7 Qde6 Nd4
k2b1QK1/1RQpB1p1/1Q1N1b2/n3b1P1/4BbbR/B2Pq1BN/3pB3/1r2n2r b - - 0 1 illegal: No proof kernel
1N4bQ/r3b1nB/4kn2/R5B1/3b1p1Q/pq1n1PR1/P1b2pBr/1N1Q1KQQ b - - 0 1 illegal: No proof kernel
6BK/1b1R1Q2/r2q1BB1/2Bp1NQN/2rP1pkn/1n1RbR2/1rn2Ppn/1B6 b - - 0 1 illegal: No proof kernel
b1QB3b/1pR1b1rk/Q2Qq2N/1Qn3Qp/3R1p2/n4N2/2r2PKP/n2BR2n b - - 0 1 illegal: Other
nB2q1B1/pN4NN/4Qr2/P2rp3/pb1RbRN1/1b1N4/kr1QP3/rnKQ4 b - - 0 1 illegal: No proof kernel
1n3r2/6p1/2p2NBQ/Q2Bnrn1/QRq2kP1/1BP1BrNR/2p3b1/2K1bBr1 b - - 0 1 illegal: No proof kernel
r5qr/B1prBR1b/1n1Npb2/1BBR3Q/pkPnb3/5b2/RB1KPN2/Q7 b - - 0 1 illegal: No possible last move
B1Nn4/1rR2NNR/pB1qrbp1/n3k3/2q5/PQpbr3/2P4N/Q1Br2NK b - - 0 1 illegal: No proof kernel
Q4B1q/KQp1Qp1k/4p3/1BP1rb2/nB6/1p1NPQb1/2R1Rnr1/1N2Qb1r b - - 0 1 illegal: No proof kernel
n1Bb2r1/1pQqQ3/1QR2Q2/2nk1R1p/1PRn1r2/2QN3P/KB1p1p2/1rN4b b - - 0 1 illegal: No proof kernel
2r4b/4Kppb/1Qr1nB2/1N1k1P2/pQBb1Q2/2Qp2P1/RB1N1q1n/r1Q1R3 b - - 0 1 illegal: Other
r6B/3rq1pp/1p1NB2P/bQ1R1bQ1/1Ppn2R1/R5q1/2qk2B1/1RN2nRK b - - 0 1 illegal: Other
4rQb1/3B2bN/1nQ1pq1N/4p2B/p2bPr2/1qN3RN/Pn1K1p1k/R3B2N b - - 0 1 illegal: No proof kernel
3N2Q1/kpBB4/R2KN1pp/r2n1N1P/q3r2r/3R1bP1/1bnB2pN/1Q4qN b - - 0 1 illegal: No proof kernel
QNB3bq/b7/1B3pK1/1nn3p1/1pkN1PN1/2Rp3N/1qBr1rP1/q4QNR b - - 0 1 illegal: No proof kernel
7n/Q3r1b1/Q2B1Q1q/p1p1B1n1/qk1q2Q1/1NPpNQ1R/P1pr4/1BKb2R1 b - - 0 1 illegal: No possible last move, all moves rejected
3rB1rb/QQ1n4/bR2p1pR/N2pn3/4N1k1/3B1pP1/2N1Pqnq/K1B2B1B b - - 0 1 illegal: No proof kernel
4Bk1B/4p1b1/n3B1p1/p3p1Nn/r2R1nR1/R1r1P2R/PRb2Qq1/K3N1nQ b - - 0 1 illegal: No proof kernel
4Nb2/b1p1kNpQ/B7/2Pnqr2/pR4pK/P4bp1/rnQBNQQ1/4QR2 b - - 0 1 illegal: Other
1r4n1/QkN1p1p1/1r1Q2Bp/1Q2Bbb1/1bn1PRB1/2q2R1P/1NQp1p2/QK6 b - - 0 1 illegal: No proof kernel forced: wxDB
3B3B/B3B3/B1r1r1b1/Q5P1/3B2K1/nBqRP3/n1n1rR2/rNn1knN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Bc5 axb5 Qd6 Qc2 Ba3 Qc5 Kd7 Qxa3 Qf6 Qf8 Qd8 Kf2 a5 Kf3 c5 g4 h5 d4 f5 b4 a4 b6 c4 d6 Ke6 b5 Kd5 d7 h4 g6 c3 b7 Kc4 g5 a3 g7 c2 d5 h3 b6 h2 d6 a2 Bb2 c1N Nh3 Rh6 Bc3 Re6 Be5 Nc6 b8B Qf6 d8B Nd4+ Kg2 f3+ Kg3 f2 b7 f4+ Kg4 f3 d7 Raa6 Be7 Rac6 d8B Nc2 Rg1 h1R Ba3 Rh2 Bg2 f1N e3 Kd3 Ba7 Ke2 b8B f2 Qb4 Ne7 g8B Nd2 Qa5 f1N Bad4 Nc4 Bba7 Nd5 Bae7 N4a3 Rh1 Kd1 Ng1 Nc3 Bd5 Rd2 Rh2 Ke1 Bb3 Re2 Rf2 Bd7 Bh7 Be8 Bd3 Bg6 Ba6 Qh8 B8b6 Qc8 Bbd8 Qc7 Bh8 Qe5 Nd2 Qf6 Rb1 a1R Rb2 N3a2 Nb1+ Ncb4 Rd2 Nbc2 Qa4 Qe5 Rd3 Qa5 Qb5 Qc3 Qa5
1Nq1r3/KpRb1R2/1R2Bn2/kN3R1P/Pn3nr1/2Q1B2R/R2n1n2/2R4r b - - 0 1 legal: proof: c4 c5 e4 d5 cxd5 f5 exf5 a5 d4 h5 g4 e6 gxh5 c4 b4 Bc5 dxc5 axb4 Kd2 Kd7 Ke3 Kc7 Kd4 g5 a4 b3 f4 c3 h4 b2 f6 c2 f7 g4 f8R g3 h6 g2 d6+ Kc6 f5 Ra7 h7 Qg5 d7 Qg7+ f6 Na6 d8R Qc7 f7 Nb4 Qd2 Qg3 Na3 b1R Ra2 Ra6 Nb5 Ra5 Qc3 Qc7 Nf3 g1N Be3 c1N Bc4 Nh3 h5 Nf2 Rh3 Ra6 Rd7 Nf6 Bb3 Rg8 h8R Ra8 Rh6 e5+ Kc4 e4 Rd1 Ncd3 Rc1 Rg4 Nfd4+ Kd7 Nc6 Nf4 Rg6 Qd8 Rh6 Qe8 Nb8+ Kd8 c6 Bd7 Kc5 Ra1 Bd2 e3 Kb6 e2 Be6 e1N Be3 Nf3 Rg6 Nd2 c7+ Ke7 c8R Rb1 Rc5 Qc8 Rc7 Ra1 Rfg8 Rb1 R8g7 Kd8 Rcc2 Rh1 f8R+ Ne8 Rf5 Nf6 Na3 Ra5 Rc1 Re5 Nb5 Re4 Bc4 Re8 Ka7 Be6 Rcf7 Bd7 Nd4 Kc7 Be6+ Nc4 Ka8 Kb6 Nb5+ Ka5 Ka7 Bc6 Rc7 Nd2 Rgf7 Bd7 Bd5 Ng8 Rb6 Nf6 Be6
3R1N2/RRQrbk2/3r2R1/Rr5P/p2P1R2/1BB4R/K3nn1b/N3nb1r b - - 0 1 illegal: No possible last move
r2b1r2/PnNQN3/6q1/1K6/pN3BBN/2qNb1Pp/1k2N3/b1RrR2N b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 a4 Nb8 a5 b6 a6 Bb7 axb7 Qd7 Ke2 Qc8 Ke1 Qd8 b4 a5 Bc4 a4 Ba6 Nc6 Bf1 Na5 bxa5 Rb8 Bd3 Rc8 Bf1 Ra8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 b8N h5 d4+ Ke4 f4 e5 a6 c5 d6 h3 f6 h4 f7 h2 f5 h3 d5 Qe7 d7 Qd8 f6 Qe7 d8N Qc7 g3 Ne7 a7 Nc6 d6 Be7 f8N Na5+ Kb5 c4 d7 c3 f7 c2 Nb7 Bd8 Nd2+ Kd4 Nc6+ Kc3 Be2 e4 Nb4 e3 Ng6 Rf8 Bg4 e2 Ne7 e1B Nc5 Nb7 Ncd3 Bf2 Rb1 Be3 Ra1 Bd4 Ne4+ Kb3 Bf4 Qc3 Qd2 c1B Ne2 Bg7 Rd1 h1R Re1 Be5 Nef2 Bd4 Ka6 b5 Rb1+ Bb2 Rbc1 Be3 Qd1+ Ka3 Qd2 Rg1 Nh1 Ba1 Qd1 Ba5 d8N Bc7 Ndc6 Bd8 Nbd5 b4 Kb5 b3 Ncb4 b2 Nc7 b1Q Qd2 Rg8 f8N Rh8 Ndf2 Qg6 Qd7 Kb2 Nfd3+ Ka3 Nfe6 Rf8 N6d4 Rf1 Ndf5 Kb3 Ne5 Kb2 Nh4 Rf2 Nd4 Rd2 Ne2 Rd1 Ned3+
1BBn2NB/K2pP3/3b2PB/N1k3r1/Rb2p1BB/4p1rn/5nQ1/1q1R1B2 b - - 0 1 legal: proof: e4 f5 d4 fxe4 a4 g5 h4 b5 hxg5 Kf7 axb5 Ke8 b6 e5 d5 c5 Qe2 c4 Qxc4 Ba6 Qc7 Be2 Ra6 Bg4 Ra1 Be6 dxe6 Bc5 Rh6 Bd6 Rh1 Bf8 Kd2 Ke7 Kc3 h5 Kb4 a5+ Kc5 e3 b4 a4 f4 e4 g4 h4 c4 a3 b5 a2 b7 h3 Kb6 h2 g6 Na6 b8B Ra7 g7 Nb4 g5 Qc8 g6 Qe8 f5 Rh4 c5 Qc8 c6 Rh5 f6+ Ke8 f7+ Ke7 Nd2 Nh6 g8B Rh3 Ngf3 Rh4 Ne5 Na6 Bb2 Rh3 Ng4 Rf3 Nb3 Bg7 Na5 Nb4 Nf6 Nd3 Qg3 Bf8 c7 Nf2 Qg2 Kd6 Bc3 Be7 f8B Nf7 Bh6 Rg3 Rg1 Qe8 c8B+ Rc7 Ka6 h1N b6 Nd8 b7 Kc5 Ka7 Bd6 e7 Nh3 Be6 N1f2 Bg4 Rc6 Rd1 a1B Ng8 Rb6 Be5 Bc3 Bh8 Rb5 Ra1 Bb4 Ra4 Qf7 Bc7 Qb3 b8B Bf4 Bce5 Qb1 Bef6 Be5 Bh4 Bd6 Nb7+ Kc6 Rh1 Rg5 Na5+ Kc5 Bfa6 Qa2 Rd1 Qb1 Bf1
1nR5/pNP2k2/QB1Bb1B1/pNB2b2/P1B1R3/1p4r1/1B3nB1/2qr1nK1 b - - 0 1 illegal: Other
nB4q1/2BK1Bq1/BQ2PP2/5nNN/3b2k1/2pRpbp1/1R4B1/B3rBn1 b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 e5 d4 b5 b4 Bb7 bxa5 b4 Qc2 Ra7 dxe5 Ra6 e6 Bc8 e5 Rb6 Qe4 Rb5 cxb5 fxe4 Kd2 Ke7 Ke3 c5 Kf4 d5 Kf5 g5 f4 c4 h4 d4 a4 d3 h6 g4 a6 b3 h5 g3 b6 d2 a7 d1N a8B b2 h7 Nf2 b7 Bd7 a5 Ba4 h6 Nd3 a6 Nc6 b8B Bb5 a7 Ndb4 Bb7 Qd2 a8B Qd6 Nh3 Na6 Ra2 Nd8 Nd2 b1Q Ng5 Qc7 Rb2 Qd7 Rh2 Nc7 Ba6 Nc6 Rf2 Nd5 Rf3 Qa2 Rd3 Bg7 B8b7 Nb6 Ba8 Qb7 Bc7 Ke8 e7 e3 Ke6 Ba4 f5 Bd1 Nde4 Bf3 Bd2 Qa7 Bb8 Nd4+ Kd6 Ne2 Ba5 Qb3 Bd5 Na8 Bac7 Ng1 Bdb7 Nf6 Bd5 Rf8 h8Q Ng8 h7 Nh6 Qg8 Bf6 h8B Qab7 Qg6+ Rf7 Kc5 Kd7 e8B+ Ke7 Bec6 Rf8 Bf7 Rd8 Rc3 Rd1 Rd3 Re1 Bcd5 Qa7+ Kc6 Bg7 Nf6 Qd4 Ba7 Qb8 e6 Qg8 Nh5 Qg4 Bab8 Bd4 Qh7 Qg7 Nf4 Kf6 Kd7 Qh5 Qg8 Qg6 Qc8 Qh7 Qb7 Qg8 Qb6 Bd1 Bdg2 Bg4 Ngh3 Bf3 Nf2 Kg5 N2h3+ Kg4 Nh5 Qg5 Bhe5 Q5g7 f6 Nf5 Ng5 Bc5 Bc3 Bd4 Rc2 Kh4 Ra2 Kg4 Ba1 c3 Rb2
1B6/3nNbBr/qN2n1R1/n1k1P2Q/K1B3R1/nBbBn3/Pr1b4/r1B1B3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 h4 Kd7 e4 f5 d4 c5 Kd2 g5 Kc2 b5 Kb3 b4 e6+ Kd6 h5 g3 a6 c4+ Ka4 b3 e7 g2 e8B c3 h6 f4 a7 g4 h7 g3 Bd3 b2 Rh4 f3 Nh3 g1N Na3 b1N Rg4 f2 Beb5 f1N Bbc4 c2 Nf4 g2 Ng6 Ne3 Ne7 Ne2 Bb3 g1R e5+ Kc7 d6+ Kb6 d7 Nf4 d5 Nc6 d6 Ne6 Nc4+ Kc5 Rg6 Rb8 a8B Na5 Nb6 Nf6 Qh5 Na3 Bad5 Bb7 Rg4 Qc8 d8B Nd7 B5c4 Bd5 Bc7 Qa6 Rg6 Rb7 Bb8 Bh6 Rb1 Bf4 Rb2 Bg3 Rb1 Be1 Ra1 Bc3 Rb1 Rf8 h8B Rf7 Rg4 Rh7 Bg7 Nf4 Rg6 Bf7 Rg4 Ne6 Ra1 Ndf8 d7 Rf1 d8B Nd7 Nc6 Rg1 Bh4 Rf1 Ne7 Rg1 Bb2 c1B Be1 B1d2 Rd1 Bc1 Rd2 Rf1 Rf2 B1d2 Rf6 Rh1 Rfg6 Rf1 Bf2 Rd1 Be1 Ra1 Na8 Rb5 Bc1 Rb6 Bbc2 Rb3 Nb6 Rb2 B2b3
nk1BrB2/4N3/4Qb2/1bnPr1N1/RBb1nBq1/rB1B4/3rq1PB/4R2K b - - 0 1 illegal: No proof kernel
KB3Q2/2q1b3/3B4/P7/Bnnr1BqN/2RNqPRr/2rrB1BB/k3bb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 e5 Kc4 c5 Kb5 h5 d4 c4 g4 e4 a4 b6 a5 e3 f6 e2 d6 Ke6 d5+ Ke5 d7 e1B g6 b3 f7 h4 g5 h3 g7 c3 d6 b2 g6 h2 Ne2 c2 Rg1 h1R Rg3 R1h3 Raa3 Na6 Kc6 b5 Bg2 b4 Nd2 b1Q Nf4 Kd4 Nd3 b3 Nf3+ Kc3 Nh4 Nh6 g8B Be7 f8B Ng4 g7 Ne3 f3 Nc4 Bf4 c1R Bd5 Rh6 g8B Rc2 Bgf7 Qc1 Be8 Qe3 Qb1 Nb2 Bc4 Rh7 Bb5 Nc4 Ba4 Rd2 Qa1+ Kc2 Qf6 Kb1 Bb5 b2 Rc3 Ka1 Ba4 b1Q Bf7 Nb6 Bc4 Qb4 Qh8 Bf6 Qg8 Qde7 d8B Rh6 Bcb5 Nc4 d7 Qg7 Bdc7 Be7+ Bcd6 Rg6 d8B Rg4 Bb8 Qf7 Bg5 Rd4 Bdc7 Be6 Kb7 Qg7 Ba7 Rc8 Bab8 Qd6 Bf4 Nb4 Ka7 Qg4 Ka8 Qd8 Bcd6 Qc7 Bg7 Bf7 Bge5 Be8 Ba6 Bb5 Qf8 Nb2 Nf2 Bf1 Be2 Nc4 Nd3 Rc2 Nc5 Rdd2 Nd3 Rd8 Bc5 Rd4 Bcd6 Qf5 Rg7 Qg6 Bh2 Qh5 Rg3 Qg4 Bf4
7N/q1k1b2R/nrN1Prb1/2R3R1/K1Br1n1R/3q1PR1/Q3r3/2B1RbRq b - - 0 1 illegal: No proof kernel
rqk3B1/3Q1rb1/Nb2N3/1K3nRN/4nN1r/3N1NB1/b2P2P1/1NR1brr1 b - - 0 1 illegal: No possible last move
2B5/b2R1nR1/RP3k2/pNK3Qq/1NR3rr/PB1b2n1/1Rq3qq/R1rR4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 f4 Bf8 fxg5 h6 g6 Qf6 g7 Qd8 g4 Bd6 g5 Ba3 g6 Bf8 Bg5 hxg5 Kd2 Ke7 Kd3 c5 Kc4 f5 b4 a5 e4 g4 h4 g3 e6 d6 a3 g2 b6 f4 b7 f3 h5 f2 b5 Rh6 e5 Ra6 Qc1 Nd7 b8R Ra7 Nh3 g1R Nf4 Rg5 Nc3 Ngf6 g8B Qc7 g7 Ne4 Nd3 Rg4 Bh3 Ba6 Rd1 f1Q Bf7 Qf3 g8R Qg2 Nb4 Ng3+ Qf4 Rh8 h6 Ra8 Rb7 Rc8 h7 Qb8 Rg7 d5+ Kd3 d4 Kc4 d3 Rc7 Rg8 h8R d2 Rh6 Rh8 Rf6 Rhh4 Rc6 Ne4 Qg5 Rc7 Rd6 Ng3+ Rd4 Rc6 Re4 Qc7 Kd5 c4 b6 Qb8 Nb5 c3 Kd4 c2 Rf2+ Nf6 Re2 c1Q Rf4 Qc2 Rfe4 Kd8 e7+ Kd7 e8R Bd6 Rf4 Ng8 Re7+ Kd8 e6 Nh6 Bg8 Nf7 Rd7+ Ke8 e7 Rc7 Rdb1 d1Q+ Rd2 Rc3 Rb2 Qdh1 Rdd1 Bc7 Na7 Bd3 Nb5 Qhh2 Re4 Qc8 Kd5 Bb8 Kd4 Ba7 Kd5 Qge2 Rc4 Qa8+ Kc5 Qag2 Rd6 Rf4 Bc8 Qh5 Rd7 Rfg4 Rbb1 Qa2 Rb2 Rc1 Bh7 Be2 Bc2 Bd3 Bb3 Nh6 Rg8+ Kf7 Rg7+ Ke6 Qd5+ Kf6 e8R Nf7 Ree7 Bb8 Ra7 Qb1 Red7 Qbc2 Ra6 Ba7 Qg5+
1B2qbR1/1Q1q3P/1P1NB1B1/2b2rbq/1NB2BBp/n6k/1B1K4/Rb3r1n b - - 0 1 illegal: No proof kernel
3r1R1r/2qr1pkQ/3NP1B1/BP1B4/1bBN2bB/2b1bn2/1qB5/1n1R2BK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 a5 Kg2 d5 h4 g5 b4 d4 c4 d3 e4 d2 e6 g3 e5 g4 c6 a4 b6 a3 c7 a2 e7 Nc6 h5 Qd6 b5 Rb8 c5 Nf6 b7 Be6 c8B Bc4 h6 Ra8 b8B Qd5+ Nf3 Qd8 h7 Ra4 Bf5 Qd4 Bg6 Qb2 Ba7 Ng8 Nd4 Nf6 Nc3 Be2 Ne4 Nd5 Kg1 Bf3 Bc4 g2 Qe2 Nc3 Nd6+ Kd7 e8B+ Ke7 e6 Ne5 c6 Kf6 c7 Kg7 c8B Nb1 Bc6 d1R+ Kh2 Ra3 Bce4 Rad3 Bg5 Be7 Bcb7 g1B+ Kg3 Bf8 Bh4 Be3 Kh2 Be7 Bbd5 g3+ Kh3 g2 Kh2 R1d2 Rd1 Bg4 Bef5 g1B+ Kh1 Nf3 Bb6 Bgf2 Ba5 Be1 Bfe4 Nc3 Rac1 a1Q Qh2 Bf6 Qe5 Qaa3 Qh5 Qc5 Ra1 Nb1 Bef5 Rb3 Bc2 Qc7 Ra4 Rdd3 Ra3 Bb4 Ra4 Rd8 h8B+ Kg8 Bg7 Rd7 Bh6 Rd2 Bf4 Kg7 Bh2 Rd8 Bg1 Rbd3 Bb6 Rh8 Ra8 Be5 Rf8 Bf6 Nb3 Bfc3 Ba5 Rd4 Bb7 Rd5 Nd4 Rd3 Nc8 Rd7 Nd6 Rd2 Bbd5 Ne1 Ne2 Rh7 Bg2 Rd8 Nb7 R2d5 Nd4 R5d7 Nd6 Rh8 Bgd5 Nf3 Qh7+
3B3B/B1P4b/P1n1r1pq/NBn2rNR/1bB3k1/QB4b1/2r1r1p1/R5KB b - - 0 1 illegal: No proof kernel
3b1b2/NP2pB1q/rk1nB3/2BBbBR1/1NB4R/1n2B2Q/p1nP1K2/1b4r1 b - - 0 1 illegal: No possible last move, all moves rejected
2BKBqrn/2R1RB2/1NqP1p2/B1B1n1n1/bp1N3B/6nQ/1P2b3/1k2Br2 b - - 0 1 illegal: No proof kernel
6KB/p1nrPQ1B/Pq2rbN1/NNN1qR1N/6N1/2R1n1p1/b1bN4/1b2k3 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxc5 Ng8 Kf2 Kd7 Kf3 f5 e4 b5 h4 g5 d4 b4 a4 b3 c6+ Kd6 e5+ Kc7 a5 b2 a6 Kb6 e6 Bb4 h6 Bd7 e7 Nf6 h5 Bc5 h7 Rg8 h8N Ne8 d6 Ba3 c7 Ka5 c8N Kb4 h6 Ng7 d5 Qc7 h7 Qc4 Ne2 Qb5 Rh5 Qb7 Ng6 Ne8 h8N Nc6 Ng3 Qb6 Nf7 Na5 Nd2 Kc3 Nfe5 b1B Ng4 Nc7 Bd3 Ba4 d7 Bb2 d8N Bac2 d6 Nc4 d7 Ne3 Ne6 Rh8 d8N Rh6 Nd6 Ba2 N8f7 Rd8 Nfe5 Rd7 Nc5 Bcb1 Nec4 Bc2 Nf8 Re6 Na5 Bcb1 Qf1 Bc2 Kf2 f3 Ng6 f4 Rh3 Bcb1 Nh5 Bc2 Rb1 Ba1 Rb5 Bcb1 Kg1 f2+ Kh2 f3 Kg3 Bb2 Qd1 f1B Qb3+ Kd4 Qd5+ Kc3 Qf5 f2 Qf7 Ba1 Be4 Bfd3 Bb2+ Kc2 Bh8 Kd1 Kf3 Bdc2 Bd3 Rf6+ Ke4 f1Q Rf3 Be5 Rf5 Ba1 Rb3 Qe2 Rc3 Ke1 Ke5 Bb2 Nb5 Ba1 Nf2 g4 Be4 g3 Ng4 Rfd6 Bd3 Be6 Kf6 Bea2+ Kg7 Re6 Kg8 Bb2 Rc4 Bf6 Be4 Qf3 Bd3 Qe4 Rc3 Qe5 Nf8 Bc4 Rg5 Ng2 Bh7 Bca2 Ng6 Ne3 Rf5
2n1B2N/2RK2B1/bNpp1QPn/3r4/1Bq3Bb/BpB2R2/7P/1r1k1Bnb b - - 0 1 illegal: No proof kernel
1r3NNr/q1Nn1p2/nkp3Bb/1NBb4/3P1R2/2R1K3/NpQ1NPN1/1q5n b - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 g4 h5 gxh5 Nf6 cxb5 Ng8 b4 axb4 Ke2 Kd7 a4 e5 h4 g5 d4 c6 a5 Kc7 d6+ Kb7 h6 b3 h7 g4 b6 e4 d7 e3 h5 g3 h6 g2 Ba3 b2 Rh4 Be7 Rf4 Qc7 d8N+ Ka6 b7 Bf5 Bc5 Qd7 Ra3 Ra7 Qc2 Qd5 Ne6 Ra8 Nf8 Bf6 Nc3 Bh4 Na2 Be6 Rc3 Nd7 b8N+ Kb7 a6+ Kc7 a7 Ne7 Na6+ Kb7 Kd3 e2 Nc7 e1N+ Ke3 Rb8 a8N Nd3 Ne2 g1Q Nb5 Nb4 Nac7 Bg5 Bh3 Qb3 Bf5 Na6 Bd3 Qa4 Bg6 Rg8 h8N Bd5 h7 Qb1 Be4 Qa5 Nhg6 Bh6 Nh4 Rh8 Ng2 Qa4 Bg6 Nf5+ Kd2 Ng3 Ke3 Rg8 h8N Nh1 Bh5 Qa3 Nhg6 Rh8 Ne7 Qa5 Ng8 Qb6 Bg6 Qa7 Ba3 Kb6 Bc5+
1BK2bB1/qNPn2BR/prQ1p3/1Bn5/5Bb1/2pR1rP1/1Nq5/2kBq1B1 b - - 0 1 illegal: No proof kernel
8/1B5r/1Q1B2PN/K2RpB2/BB1pqN1P/n2r3b/B1n1B2p/r1b1k1rR b - - 0 1 illegal: No proof kernel
2BB2R1/Nk1K1P2/bq1B3B/1Rrp3r/n2p1B2/1pQ2n2/Bb1bN1P1/5Bb1 b - - 0 1 illegal: No possible last move, all moves rejected
1R5r/b1R4q/k1RRb1p1/2RBQ1R1/1P2K3/r4n1p/p1Pp1RNB/2r2N1n b - - 0 1 illegal: No possible last move
r1r3NB/2p3R1/4N2p/Nn6/1Npq3P/NBN2kpK/n1Rbr1PQ/N6n b - - 1 2 illegal: Other
q4R2/3P1NpK/6Bp/rN2nn2/B1B1r1Qq/1p2pp2/1B3RBP/1bBB3k b - - 0 1 illegal: No proof kernel
kq1qnN2/2n2bRK/4nQ2/B2QB1B1/P3B2Q/1n2R3/2pR2P1/q3N3 b - - 0 1 legal: proof: h4 d5 b4 c5 c4 g5 hxg5 b5 d3 a5 d4 axb4 cxd5 c4 Rh2 Ra7 Rh4 Rc7 Rh1 Rc5 dxc5 Bd7 Qa4 Bg4 Qd1 Bc8 e4 h5 e5 Rh6 f3 Bg7 f4 Rd6 exd6 e5 Bb2 e4 Bc1 Be5 fxe5 Ba6 Be3 Bb7 Bc1 Bc8 Kd2 Kd7 Ke3 f5 Kf4 e3 a4 b3 c6+ Ke8 d7+ Ke7 e6 Kd6 e7 Kc7 e8R c3 d6+ Kb6 c7 Kb7 g6 c2 g7 e2 Na3 e1N Bb2 b4 Qd3 h4 Nf3 h3 Be5 b2 Rd1 b1Q Nc4 b3 Rd2 h2 Nb6 Nf6 Kg5 f4 Kg6 b2 g8Q Qa1 Qh7 b1Q Qh4 Na6 Re7 Qbb2 Rg7 Ne8 Kh7 Qba2 Rg1 h1Q Be2 Qh2 Rh1 Qg3 Rh3 Qd5 Bf1 Qdg5 d8B Be6 d7 Bf7 c8Q+ Ka7 Bdf6 Nac7 d8B Qh2 Qcf5 Kb8 Qb5 Nd3 Nd7+ Ka8 Ne1 f3 Nf8 f2 Re3 Nc5 Bd3 f1N Be4 N5e6 Qd3 Qhf4 Bfe7 Qfg3 Qf6 Qh2 Rd1 Nd2 Bb4 Nb3 Rd2 Qhg3 Ba5 Q3f4 Qg6 Qe7 Qf5 Qd7 Bg5 Qd8 Qg6 Qg3 Qf6 Qf4 Bg6 Qb4 Be4 Qbb8 Qxd5+
6nB/R6K/3r1rP1/Q4B1Q/b2RnN1q/3P1Bb1/1nQb1q1k/1BN4N b - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 a5 axb5 g5 bxa5 d4 h4 c6 bxc6 gxh4 c3 Qb6 cxd4 Qc7 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 h5 g4 e6 d6 h3 c7 h4 d7 h2 g5+ Kg7 f6+ Kg6 f7 h3 a6 Bh6 f8Q Qe7 d8Q Bg7 a7 Bh6 Nc3 Bd7 c8B Bc6 Nce2 Kh5 Ng3+ Kh4 N1e2 e5+ Kf5 e4 Kg6 e3 f4 Bb7 f5 Na6 f6 Qc5 f7 Nb4 Bb2 Bc6 Qfe8 Nd3 Nc1 e2 f8N e1B Ne6 Qg1 Be5 Nb2 Bd3 Qc5 Rf1 h1N Bb1 h2 d3 Kh3 Rf4 Nf2 Qc2 h1Q Rb4 Qe3 Rd4 Ne4 Ra3 Qh2 Nh1 Bg3 Qd5 Rh7 Bh8 Rd7 Qa2 Rd5 Kh7 Qef2 Qh5+ Kg2 g6 Qh4 Ra6 Kh2 Qa5 Bd2 Nf4 Ba4 Be6 Rf8 Bf5 Rd6 a8B Nc3 Ra7 Rff6 Bg2 Ne4 Bf3
2Q1R2N/2QQ4/1q4B1/bn1r4/rRB2PQ1/1B3n2/3k1NnP/R1bbb2K b - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 f5 a4 a5 axb5 f4 bxa5 f3 exf3 Be6 f4 Bh3 f3 Bc8 f5 h6 f6 Qd7 fxg7 Qd6 f4 Qd8 g4 Be6 g5 Bd7 g6 Bc6 Bb2 Bd7 Bf6 Bc8 Bg5 hxg5 Kf2 Kd7 Kg2 Kd6 d4 c5 b6 e5 a6 c4 b7 e4 a7 g4 Nc3 e3 Bd3 e2 Nf3 g3 Nh4 Be7 Re1 Nh6 g8B Bg4 g7 Na6 b8R Nc7 Rb4 Nf5 Kh1 Rh5 Ng6 Ne3 Nh8 Nb5 Bg6 Qc7 Be6 Bd8 g8B g2+ Kg1 Ke7 d6+ Kf6 d7 Qb7 d5 Bf3 Na2 c3 d6 c2 Nc3 c1B Bb3 Qc6 Bgc4 Rd5 Ne4+ Ke6 Bh5 Kf5 Nf2 Bc7 d8Q Bg4 Nd3 Ke4 d7 Kd4 Bg6 Kc3 Qb8 Qb7 d8Q Bh5 Kf2 g1N Qd7 Ng2 Qbd8 Rc8 a8Q Qa6 Qac6 Ra8 Qb8 Qb7 Qcd6 Ra4 Qbc8 Ba5 Q6c7 Qc6 Rf1 Qb6+ Kg3 Ne3 Rf3 e1B+ Nf2 Ne2+ Kh3 Ned4 Rg3 Bf3 Rg5 Be2 Re5 Bh5 Qf3 Kd2 Re8 Bg4+ Kg3 Bh5 Qg2 Bd1 Kh3 Nf3 Qgg4 Nf1 Kg2 Ne3+ Kh1 Ng2 Qdd6 Qa7 Qdd8 Qb6 Qdd7
n1Rb2Q1/4Qq2/q1qN4/1RPPnq2/1B2Q1Nr/1k1N4/4BB1b/1K1B2q1 b - - 0 1 illegal: No possible last move
b3Br2/b2NP2b/BN2PQbq/2KR1RNQ/8/Q2B2b1/1n2B1kq/n7 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 d5 fxe5 b4 a4 d4 a6 d3 a5 Nd7 cxd3 Ra7 d4 Rb7 d5 Rb6 axb6 Nb8 Bb2 Bh6 Bd4 Bg7 Bc5 Bh6 Bf8 Bxf8 Kf2 Ke7 Ke3 f5 Kd4 h5 g4 c6 e4 f4 g6 h4 e6 Kd6 g7 h3 g5 h2 a7 b3 a8B f3 b7 b2 e7 f2 g6 Qc7 e5+ Kd7 d6 Ke6 d7 Kf5 d8Q Kf4 Ba6 Kg3 Ra5 f1Q Na3 b1B Rd5 Nf6 g8B Nh5 g7 Nd7 b8N Bh7 Nc4 Qf6 Nh3 Nc5 Bf7 Nf4 g8B Qh6 Nd7 Nfd3 Rf1 h1B Ncb6 Kg2 Rf5 Nb2 Qh5 Qcd6 Be8 Nb3+ Ke4 c5 d4 c4 Ng5 Bg6 Bh7 c3 Qc7 c2 Qc3 Na1 Qa3 c1B Bc6 Be3 Bcb5 Bf2 Be2 Bg3 Ke3 Na4 Kd3 Qb8 Kc4 Nb2+ Kc5 Bb7 e6 Ba8 Rde5 Be4 d5 Bg7 d6 Rf8 Rd5 Bb1 Ne5 Bd3 d7 Bf6 d8Q Bh8 Ned7 Bd4+ Kc6 Qf4 Qc7 Qh4 Qe5 Qh2 Na8 Ba7 Nab6 Kg1 Kc5 Bhe4 Qf6 Kg2 Rd6 Ba8 Rdd5 Bb1 Rfe5 Bf7 Bhd3 Bg6 Rf5 Bc2 Bdc4 Be4 Bcd3 Bh7 Rf4 Beg6 Rff5
R3R3/1Q2bR2/N3Q1qb/Q2N1PNN/KB1rr1B1/b1q1r2r/3k2P1/1b6 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 e4 f5 exf5 d4 c4 d3 h4 gxh4 b6 Be6 b5 Nf6 b7 Nd5 cxd5 Qd7 Bxd3 Qd6 b6 Bc8 Bf1 Na6 Bxa6 Qd7 Bf1 Qd8 b8R Kf7 d4 Kf6 Kd2 Kg5 f6 Kf4 d6 e5 b7 c5 d7 a5 d5 h5 f3 c4 f7 a4 d6 h3 Nc3 a3 Qe1 h2 Nb1 a2 Qd1 e4 Kc3+ e3 Kb4 h4 Nc3 h3 Qb3 Qg5 d8N Qg6 Ba3 e2 Ne6+ Ke3 f4 e1R Nf3 Rh4 Be2 Bh6 Rf1 h1Q f8Q h2 Nfg5 Kd2 Nd5 c3 d7 c2 d8Q c1B Bg4 Re3 Ng7 Bf5 Qfd6 Bb1 Qe6 Ra4+ Kb5 Rc4 Nh5 Rce4 Rc8 Qg1 b8N h1R Na6 R1h3 Be7 Ba3 Qa5+ Bb4 Rf3 Qc1 Re8 Qc3 Ka4 Ba3+ Bb4 Bd3 Re1 a1B f5 Bc2 Rf8 B1b2 Rf7 Rd4 Ra1 Bb1 Rf4 Bc1 Re4 Bcb2 Qd7 Bc1 Re8 Bf8 Qb7 Be7 Bd1 Rhf4 Bg4 Rfe4 Qc4 Bcb2 Qcc6 Bc1 Qe6 Bf8 Qac7 Kd3 Ka5 Be7 Nb8 Bab2 Nh7 Re1 Ra2 Bh6 Ng5 R1e3 Kb5 Bhf8 Ra8 Ba3 Ka4 Kd2 Na6 Bh6 Qa5
5rB1/1r2bRP1/3Q2bN/6QB/k5nr/P2qQ1NR/2p3Bq/KbR3R1 b - - 0 1 legal: proof: c4 b5 d4 a5 e4 c5 b4 g5 bxa5 f5 exf5 d5 cxd5 c4 h4 b4 hxg5 b3 Na3 b2 Be3 Na6 Rc1 b1Q Rc2 Nc5 dxc5 Qc1 Bd4 Qb1 Ba1 Qxa1 Kd2 Kd7 f4 h5 g4 e5 a6 h4 g6 h3 a7 h2 g5 e4 f6 Rh7 d6 Kc6 f7 Rh8 g7 Qe7 f5 Rh3 f6 Rh4 g6 Rb8 a8Q+ Qb7 d7 Ne7 d8Q Qc1+ Kc3 e3 g8B e2 g7 e1R Nb5 Qf4 Kb2 c3+ Ka1 Qc7 a3 Qd6 Ne2 Rh3 Ng3 Re6 Rg1 h1B Qa7 Bd7 Rc1 Nd5 Bg2 Be7 f8R Qa6 f7 Rf6 Re8 c2 f8R Be6 Rf7 Rh4 Qd3 Qc7 Nd6 Rb7 Ndf5 Qf4 Qd4 Kb5 c6 Ne3 c7 Ba2 c8B Bb1 Q4d6 Ka4 Nh6 Ng4 Qe3 Qd3 Bf5 Qf2 Bg6 Rf3 Bh5 Rf5 Bh3 Be4 Bg2 Qfd2 Ref8 Rf1 Rf3 Bg6 R8f7 Q2e2 Nh1 Qf2 Rg3 Qf4 Rh3 Qh2 Ng3 Bg5 Re7 Rf8 Rf7 Be7 Qa5+ Kb3 Qf5 Ka4 Qfg5
b3qk1b/2r2b2/N4P1r/PnNR3q/B2Q1p2/1Q1NBQ2/b2BR3/K2B4 b - - 0 1 legal: proof: f4 h5 c4 d5 cxd5 e5 fxe5 f5 b4 c5 g4 a5 gxh5 axb4 d4 f4 dxc5 Nc6 e3 Nce7 e4 Nf5 exf5 Be6 Bg2 Bd7 Bf1 Bc8 Kd2 b5 Kc2 g5 Kb2 g4 h4 g3 a4 b3 c6 b4 e6 g2 a5 Ra7 c7 Rb7 d6 Nf6 d7+ Ke7 h6 Rb5 h5 Rb6 h7 Qe8 d8N Qa4 h6 Qd7 Rh2 Rg8 h8Q Ke8 h7 Rg4 e7 Qa4 Nf3 g1Q Nc3 Qf2+ Bd2 Qb5 Ne4 Rg3 Ne5 Bb7 c8Q Rg7 Be2 Qe3 Nc5 Nd5 Qa8 Nc7 Ned3 Rh6 Na6 Qe6 Qb8 Ba8 Nb7+ Qc8 Kb1 b2 Nbc5 Kf7 Ka2 b1B+ Kb2 b3 e8B+ Ke7 Rh5 Rf7 Qd4 Ba2 h8B Bg7 Qh1 Bf6 Bd1 Kf8 Qf3 Qd8 Bc6 Qe8 Rb1 Be5 Ka1 Rfh7 Bf6 Rd7 Bd8 Bh8 f6 Re7 Rd5 Qh5 Bb7 Qbe8 Rb2 Nb5 Bb6 Rc7 Bc6 Bb1 Ne5 Bg6 Ned3 Bf7 Qb7 Nc3 Ba4 Nb5 Rc2 b2+ Ka2 b1B+ Ka1 Ba2 Ba7 Nc3 Qb3 Bb1 Be3 Ba2 Re2 Nb5 Bd2 Qd7 Bb6 Qe8 Qe5 Rh7 Nb7 Qg5 Bbe3 Rh6 Nbc5 Qh5 Qd4
1R3Q1B/KPk1N1b1/2B3PB/2R5/2qN2b1/Q2Q1q2/p2q3N/nbbr2Q1 b - - 0 1 legal: proof: b4 a5 h4 b5 e4 d5 a4 f5 axb5 g5 exf5 gxh4 c4 d4 b6 d3 b5 Nf6 b7 Nd5 cxd5 Nd7 Bxd3 Nf6 b6 Ra6 Bxa6 Ng8 Be2 Bg7 Bf1 Bf8 Ke2 Kd7 Kd3 h5 Kd4 e6 b8B c6 g4 a4 f4 h3 d6 a3 Kc5 h2 d4 h4 g5 e5 f6 a2 d5 e4 f7 h3 b7 e3 f5 e2 g6 e1Q f6 Qee8 Bh6 Qee7 Na3 Qc7 Nc2 Rh7 Bg2 Kd8 Nd4 Qe1 Ngf3 Qd2 Qg1 Bg7 d7 Ne7 Rc1 Nf5 Rc4 Qcf4 Kb6 c5 Be5 Ne3 Ka7 Nc2 Rc3 Rh8 Rc4 Re8 f8Q Na1 f7 Qh4 Bf6+ Kc7 d8N Bg4 N8c6 Re1 Ne7 Rd1 Rc3 c4 d6+ Kd7 Rc1 c3 Qa8 c2 Be5 Bf8 Bh8 Bg7 f8Q Rf1 Rb1 c1B Rb5 Rd1 Rd5 Qhg5 Rc5 Qgf4 Kb8 Qf7 Qa3 Qc4 Ka7 Qdc2 Qf2 Qd2 Re1 h1Q Nh2 Qhf1 Qg1 Qff7 Ree5 Qf3 Rc8 Rf1 Rec5 Rd1 Nf1 h2 Rb8 h1B Nh2 Qff4 Be4 Qf3 Ndf5 Qfb3 Bd5 Be4 Bc6+ Ke6 d7 Bb1 d8Q Qh3 Qb6 Qf3 Nd4+ Kd6 Qbb3 Kc7 Qd3
1n3K2/2n1PNQ1/1BQ5/NP2Bq2/4r1Rr/Nr3B1B/k4p1Q/qrn4R b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 f4 e5 g4 exf4 gxh5 Qe7 c4 Qd7 cxd5 Qd8 d3 a5 Ba3 c5 Qb3 c4 Bb2 c3 Qd1 a4 Bc1 Be6 d6 Bc4 dxc4 Be7 Qd3 Bf6 Qd1 Bd4 Nh3 Bb6 Ng1 Ba5 bxa5 Rh6 Qd3 Rh7 Qd1 Rh8 Kf2 Kd7 Kf3 Ke6 Ke4 g5 h4 a3 d7 f6 a6 c2 a7 f3 h6 f2 c5 g4 h7 a2 h5 g3 c6 g2 h6 Qb6 d8N+ Ke7 Kd5 f5 e4 f4 e5 f3 c7 Qe3 c8Q Nd7 e6 Qa3 Nf7 Kf6 e7 Kf5 Qc6 Nb8 Qd4 Qd3 Be3 c1N Ne2 g1R Bh3+ Rg4 Na3 f1R Kd6 Qb1 Qg7 f2 Bb6 Nf6 Nd4+ Kf4 Nb3 Qf5 Rb1 a1Q Na5 Nd5 Rb4+ Kf3 Rf4+ Ke2 Rb4 Rh4 Rg4 Rf8 h8Q Kd1 h7 Nc7 Qh6 Rg8 Q8g7 Rf8 h8B Re1 N3c4 Kc2 Qf4 Kb1 Na3+ Ka2 Qg3 Nba6 Qh2 Rac8 a8B Re4 Qg5 Rg8 Be5 Nb8 Qg7 Rgd8+ Kc5 Rd3 Bb7 Rb3 Kd6 Nca6 Ba8 Qh7 Ke6 Nc7+ Kf6 Rb1 Qh6 Qf5+ Kg7 Rh8 Qhf6 R8h5 Kf8 Rg5 Qg7 Rg6 Rf4 Rg3 Rg4 Rgb3 Qcf6 Ree3 Bf3 Re4 Qc6
N1Bk4/bnp4q/1Qn1qR1p/1rnB4/R1P1RBB1/3P4/QN4r1/K6N b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e6 e4 e5 fxe5 dxe4 hxg5 a5 bxa6 Be6 b4 Be7 b5 Ra7 b6 Bf5 b7 Nc6 b8N Bc8 Be2 Bb7 axb7 Ra8 Bf1 Bf8 c4 f5 g4 f4 e6 e3 e7 h6 d3 f3 g6 e2 Kd2 e1Q+ Kc2 f2 Kb2 Qd7 g7 Qd2+ Qc2 Qc8 g5 Ra7 g6 Nb4 Ne2 Qd7 Bh3 f1N Ra4 Qf4 Nbc3 Qe4 Bg4 Qe3 Ng3 Qf4 Ka1 Qfd4 Bf4 Qg1 Nd1 Na6 Qa2 Nc5 Nb2 Qe6 Nd7 Ra5 Nb6 Rb5 Na8 Kd7 e8B+ Kd8 Rh4 Ne7 g8B Nc6 g7 Qf2 Bg6 Nd2 Nh1 Nde4 B6f5 Nd6 Bf7 Qf3 g8R Qfe4 Rg6 Rg8 Rf6 Be7 Bh3 Rg3 Bfg4 Qh7 Bg8 Rg2 b8Q+ Kd7 Qb7 Kd8 Qb6 Ndb7 Bf7 Qd5 Bc8 Qe6 Bg4 Bd6 Bg6 Be5 Be4 Bd4 Bd5 Nd7 Qa6 Ba7 Qb6 Ndc5 Rh3 Rh2 Re3 Rg2 Re4
1RbN2k1/1nB1pQ2/2KB1r2/Q1N1r1qb/1P2N2r/1R2p3/1P2Q3/2R1r2R b - - 0 1 legal: proof: d4 f5 e4 g5 h4 d5 hxg5 b5 exd5 b4 c4 b3 axb3 Bh6 c5 Bf8 b4 Bg7 Bd3 Be5 Be4 Bd6 cxd6 fxe4 Ke2 Kf7 Ke3 a5 g4 h5 f4 c5 d7 h4 f5 h3 g6+ Kf8 f6 c4 g7+ Kf7 g5 c3 d6 a4 d5 a3 Kd4 h2 Kc5 a2 Bf4 c2 Nc3 c1R Nh3 Ba6 Nf2 Bc8 Qe2 Rh5 Nd3 Rg1 Rc1 Qe8 d8N+ Kg6 d7 Kh7 d6 a1R f7 Nc6 f8R Nh6 g8R R8a7 Kd5 Rb1 Nc5 Nf7 Be5 Rh4 g6+ Kh6 g7 Kh7 Bg3 Na5 Bf4 Nb7 Kc6 Ra5 Be5 Nh8 Rf3 Qg6 Re8 Qg5 g8Q+ Kh6 Bg3 Rf1 Qgc4 Kh7 Rd3 e3 N3e4 Kg7 Rb3 Nf7 Nde6+ Kh7 d8Q Rh5 d7 Rf5 Rcc3 Rf6 Na6 Re1 Bd6 Re5 Qa5 Rh4 d8B Bd7+ Kb6 Rf3 B8c7 Rf6 Rb8 Bc8 Nac5 Kh8 Rc1 Kg8 Rf1 h1B Kc6 Bf3 Nd8 Bfg4 Rh1 Bh5 Qxf7+
NrR1Q3/r1Pp3K/1B2N2R/3PB3/6bN/r1p3R1/1rr3nN/Bk3Qb1 b - - 0 1 legal: proof: e4 b5 b4 h5 a4 f5 exf5 h4 axb5 h3 b6 a6 b7 Rh6 b5 Rh7 gxh3 Kf7 h4 Ke8 h5 Rh8 c4 Nc6 Bd3 Na7 b6 c6 Be2 Qc7 bxc7 Nb5 Bd3 Na7 Bc2 Nb5 Ba4 Nc3 Bb5 axb5 Ra5 b4 Ra1 Nb5 cxb5 Ra4 Na3 Ra7 Nb1 Ra8 Ke2 Kf7 Ke3 Kf6 Kf4 e6 b8R g6 d4 b3 h4 b2 h6 c5 d5 c4 h7 Bg7 h5 Ne7 h6 Rg8 h8B Ra3 b6 Ba6 b7 Re8 h7 Ra2 Nf3 Ra3 Nc3 b1R Nh2 Rb2 Be3 e5+ Ke4 g5 f4 g4 Bb6 g3 Qf1 g2 Na4 g1R Rc8 Rg6 b8Q Rgg2 Rb1 Rbc2 Rb3 Ng6 Rg3 Nh4 Qa8 Rgf2 Qb8 Ng2 Qa8 Ke7 f6+ Kd6 Kf5 e4 Kg6 e3 f7 e2 f8N e1R f5 Ke5 f6 Ke4 f7 Rea1 Ne6 Bd4 f8N Be3 Bb2 c3 h8B Be2 Be5 Kd3 Kh7 Kd2 Qb8 Bg4 Ng6 Re2 Qa8 Bg1 Nh4 R1a2 Ba1 Rf8 Qf7 Kc1 Qa6 Kb1 Qe8 Rcb2 Qb5 Rc2 Qf1+ Ne1 Ba5 Rg8 Nb6 Rf8 Na8 Rg8 Qf4 Ng2 Bb6 Ra7 Qff8 R2a3 Qf1+ Bd1 N2f3 Rg4 Ba5 Re4 Nf5 Rf4 Rh6 Rfb4 N5h4 Rb5 Nh2 Rb8 Qf2 Be2 Bb6 Bg4 Qf1+
2n5/p4bB1/P3k3/1NN3rQ/1B1B1K1N/1r1N1pp1/R1b2rPQ/b1R3R1 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 fxe5 g5 b4 g4 h4 Qg5 hxg5 Ne7 e4 Nf5 Bd3 Ne3 Be2 Nd7 Bf3 c5 bxc5 Nb6 cxb6 Nf1 Be2 Nh2 Bf1 Nxf1 Kf2 Kd7 a4 h5 d4 f5 d6 b4 d5 h4 b7 g3+ Kf3 b3 b8N+ Kd8 g6 h3 g7 h2 g8N b2 a5 f4 d7 Ne3 a6 Rh6 e6 Bb4 e5 Kc7 d6+ Kb6 d8B+ Kc5 d7 Nc2 e7 Rh5 e8R Na3 e6 Rh4 e7 Ba5 Ne2 Nb5 Na3 b1B Bd2 Kd5 Bb6 Rh8 d8B Bbf5 Qg1 Nc7 Rc1 Bh7 Nh6 Bb7 Nd7 Bc2 Nf5 Bc3 Nb5 Rh5 Nh4 Ba1 Nc5 Rb8 Bb4 Na8 Rf8 Rf5 e8Q Rg5 Qh5 Bc8 Be7 Be6 Bf6 Bf7 Bg7 Rb7 Re8 Rb8 Re3 Rb7 Ra3 Rb8 Nb7 Ke6 Bbd4 Nb6 Ra2 Nc8 Nc5+ Ke7 Nd3+ Ke6 Nec3 Rb6 Ke4 f3 Kf4 Rb7 Na4 Rb8 Qf2 Rb6 Rhf1 h1R Qg1 Rb7 Rfd1 Rb8 Qh2 Rf1 Nb6 Rf2 Nd7 Rb7 Rh1 Rc7 Rhf1 Rc3 Rg1 Rb3 N7c5+
4k3/n4Q2/q1n1N1QP/1pq3P1/3p1BRp/NN1qQK2/QnB5/1B4Rr b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 f5 exf5 h5 dxc5 Nc6 g5 Nb8 h3 b6 Ba3 Ba6 Qf3 Be2 Qd5 Bg4 Bc1 g6 Qd4 Bh6 gxh6 g5 Qd5 Bf3 Qd3 g4 Qe2 g3 Qd1 Bg4 hxg4 Qc8 Bd3 Qc7 Bf1 Qd8 Ke2 d5 f4 e5 c4 b5 a4 b3 g5 d4 c6 h4 a5 b2 f6 e4 f7+ Kf8 f5 e3 c7 g2 c8B Nd7 a6 Nb8 a7 Qd7 c5 Qd5 c6 Qc4+ Qd3 Qc2+ Kf3 e2 c7 e1Q Qe3 Qcc3 Na3 b1N Ne2 Na6 Rg1 Rb8 a8Q Qd1 Qd5 Nb4 Qa2 Qdd2 Bd7 Re8 c8Q Qc5 Qc6 Re7 Qg6 Qd3 Bd2 Re8 Nc1 Ne7 Nb3 Nc8 Bc6 Rh7 Be4 Ke7 f8N Na7 Ne6 Rf7 f6+ Kd7 Be2 Nc3 Bd1 Na4 Bc2 Nbc6 Bf5 Nb2 Raf1 Rh7 f7 Re7 f8Q Rhf7 Kg4 Re8 Rf4 Ra8 Kf3 Re8 Rh1 g1Q Rg4 Qa1 Rhg1 Ra8 Qd6+ Ke8 Qf4 Rb8 Be4 Rb6 Qff5 Ra6 Be1 Ra4 Bg3 Rc4 Bb1 Rc1 Bf4 Re1 R1g2 Rh1 Rg1 Qb6 Bc2 Qc1 Bb1 Qcc5 Bc2 Qa6 Bb1 Qdc4 Bec2 Qd3 Qfxf7#
1q6/1pR4Q/q1nk3N/p1P2qn1/3P1RNB/2KNpR1n/3B2BR/1r2Q3 b - - 0 1 legal: proof: c4 f5 b4 g5 e4 d5 cxd5 a5 exf5 Bd7 h4 Bb5 a3 Ba6 b5 gxh4 bxa6 Bg7 Bb2 Bc3 Bc1 Bb4 axb4 Kf7 Rh3 Kf8 Rh1 Ke8 d4 Kd7 Kd2 c5 g4 h5 f4 e5 a7 e4 f6 c4 d6 e3+ Kc3 h3 f5 h2 f7 h4 f8R h3 g5 Nf6 g6 Qc8 g7 Qc6 g8N Qf3 Bg2 Rh6 Nd2 Rh8 Nf1 Qf2 Bd2 Nh7 f6 Qf3 f7 Ng5 Ne2 Qf5 Nc1 Nc6 Qe1 Rc8 a8Q Ke6 d7 Kd6 d8B Rh7 Rg1 h1N Nh6 h2 Ra2 Nf2 Nd3 h1Q Nh2 Nfh3 N2g4 Qh2 Rf1 Qhe5 Rf3 Qb5 Re8 Qa6 f8R Rg7 Re7 Rg6 Kc2 c3 Rc7 Rg7 Kb3 c2 Kc3 c1Q+ Rc2 Qe6 R8f4 Qf5 Qh4 Qf1 Qe1 Qa7 Bf6 Qb8 Qa6 Rf7 Qc4 Rg7 Qg8 Rg6 Qh7 Qe2 Nc1 Qa6 Nd3 Rd8 Bh1 Nf7 Ngf2 Ke6 Qa1 Kd6 Bc1 Rg1 Nfg4 Kd5 Bh4 Nfg5 Rh2 Ke6 Bd2 Rd5 Qd1 Kd6 Bg2 Re1 Qe2 Rb1 Qe1 Rc5+ bxc5+
q4nnB/4rb2/N5r1/K1bBNB1b/3N2q1/4QQqk/PPR2QQ1/4r1R1 b - - 0 1 illegal: No possible last move, all moves rejected
1R1qR1q1/kn3NNB/2r2b2/b1R4n/6P1/3n1QBP/NR2Br2/2b2rQK b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 Ra3 h5 Ra4 h4 Ra1 h3 gxh3 Qd6 Kf2 Qd7 Ke1 Qd8 Na3 g5 Nb1 g4 Bg2 g3 Bf1 Bg4 hxg4 Kd7 Ra4 Ke7 Ra1 Ke8 e4 Kd7 d4 Kc8 b4 Kb7 d6 c5 h3 a5 e5 f5 d5 f3 d7 c4 e6 a4 d6 c3 b6 f4 e7 c2 e8B a3 b5 a2 Nc3 g2 Kf2 Nf6 Rb1 a1N Na2 Ng8 Rb2 Na6 Ne2 Nc5 Kg1 Nd3 Nd4 Bg7 Be2 Nf6 Nf5 Rh6 Bg6 Nh5 Bh7 Bf6 Ng7 f2+ Kh2 f3 Bf4 f1R Bg3 Kb8 b7 Ka7 b8R c1B Rg1 Qg8 d8N f2 d7 Nb3 Nf7 Na5 d8Q Nb7 Qd5 Qd8 Rh1 g1B+ Kg2 Qg8 Re8 Rc8 Rh2 Rc6 Qf3 Rg6 Kh1 Rg5 Bh4 Rf5 Rg2 Bh2+ Rg1 Bc7 Bg3 Re1 Rf1 Ba5 Rg1 f1Q b6+ Ka6 Qd5 Qf2 Qf3 Rf1 Qe1 Qd4 Qef2 Nc5 b7 Ka7 b8R Nb7 Q2g2 Rf2 Re1 Qd7 Qg1 Qd8 Rd1 Rf4 Rdd2 Rf5 Rdc2 Rf4 Rc5 Rf1 Qg2 R4f2 Qf3
b1rR1n2/KQ1R4/B4N1Q/1Q4n1/N1qr1P1q/kBN2B2/3Pqb1n/Q3b3 b - - 0 1 legal: proof: a4 b5 axb5 d5 c4 f5 cxd5 g5 e3 f4 exf4 g4 f3 Bd7 Ke2 Be6 Ke1 Bc8 fxg4 h6 b3 Qd6 g5 Bg4 g6 Qf6 g7 Qg5 Bb2 Bh3 g4 Qf6 g5 Bc8 g6 Qd6 Bf6 Qd8 Bg5 hxg5 Ke2 Kd7 Ke3 Kd6 Kd4 a5 h4 c6 h5 g4 b4 g3 b6 a4 b5 g2 b7 a3 h6 a2 h7 Nh6 g8B Nf7 b6 Nd7 b8N Bb7 g7 Ng5 Ne2 g1N Nec3 e5+ Kc4 c5 Kb5 c4 Na4 e4 Nbc3 e3 Rh2 Bc8 b7 e2 Be6 e1B g8B Qf6 Bg4 N1f3 Rh6 Nh2 Bf3 Bg7 Bf7 Rd8 h8Q Nf8 Kb6 Qe6 Rh7 Qe2 Nd7 Be5 Rc1 a1Q Nf6 Bg4 Qb3 Rac8 Qb5 Bd4+ Ka6 Bdf2 b8Q+ Rc7 Qa8 Rcc8 Qab7 Bf5 Be6 Be4 Re7 Qa3 Qh6 Qc5 Re8 Qc7 Ra1 Qh7 Ra3 Rd7 Rd8 Qe7 Nb1 Qh7 Rd3 c3 Bg8 c2 Nbc3 c1Q Rd4 Qf7 Ka7 Qh5 Be6 Qed1 Bc4 Qe2 Bb3 Qh4 Bh3 Qcd1 Bf1 Qc4 B1e2 Ke7 Bd3 Qe2 d6+ Ke6 Qc7 Ba8 Qcb7 Rdc7 d7 Rc5 Re4+ Kd6 Re7 Rd5+ Q5b6+ Qc6 Ba6 Rd4 Qb5 Qc7 Rde8 Qcc4 d8Q+ Nd7 Qda5 Nf8 Nb6 Qd5 Qa1 Qdc4 Qba4 Kc5 Rd8 Nd7 Qac6+ Kb4 Rf7 Nf8 Rfd7 Qcd3 Nba4+ Qb5 Qd1 Ka3 Qc5+ Qb4 Qcb5 Qbc4 Qa1#
3rqBn1/Rn6/1B1q1Nb1/BBP1N3/8/Q1qPbRnQ/K1k3r1/N2r3Q b - - 0 1 legal: proof: b4 b5 e4 c5 a4 d5 axb5 f5 exf5 h5 g4 Nh6 gxh5 Ng8 c4 dxc4 bxc5 Ba6 Bg2 Bb7 Bf1 Bc8 h4 Kf7 f4 Kf6 h6 e5 h5 a5 b6 g5 b7 g4 h7 a4 h6 c3 Bb5 g3 d3 c2 Kd2 g2 Kc3 a3 Kb3 e4 Ka2 e3 Nd2 e2 Ngf3 e1R Ne5 g1N Nb3 Ne2 Bd2 c1Q Rf1 Qe7 Rf3 Nc6 b8B Qe8 Ba7 Na5 Bb6 Qc3 Qc1 Nb7 Qb2 Qd4 Bda5 Ng3 Qc3 Rd1 Qb4 Ke7 f6+ Ke6 f7 Qd6 f5+ Kd5 f6 Bf5 Qa4 Bg7 f8B Rd8 f7 Bf6 Qb4 Bg5 Qc3 Be3 Qb4 Nf6 Qa4 Rg8 h8Q Rg4 h7 Ng8 Qb4 Bg6 Qc3 Rb1 Qc1 Rg5 Qh1 Rg1 Qf6 Rf1 h8Q Rd1 Q8h3 Rg4 Bh6 Rg5 f8N Rg4 Nh7 Rg5 Nd2 Kd4 Bf8 Rg4 Qe6 Rg5 Nf6 Rg4 Kb3 a2 Kb2 Rg5 Qb3 Rg4 Qa3 Rg5 Rc1 a1Q+ Kb3 Qc3+ Ka2 Ne2 Ra1 Rg2 Rb1 Ng3 Rb2 Qb4 Nb3+ Kc3 Re2 Bf2 Re4 Kc2 Rh4 Qc3 Rh7 Be3 Rd7 Rb8 Rg7 Nd8 Ra7 Nb7 Qh7 Rc8 Q7h3 Rd8 Na1+
5KRR/1bn3nq/5R1P/r1N4n/4B3/2rQb1Qn/Pk1Qn1NQ/2r2BN1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 h6 g4 Bg7 g6 Bf8 g7 Qd7 Kf2 Qd6 Ke1 Qd8 g5 Na6 g6 Rh7 Bb2 Rh8 Bf6 Nb8 Bg5 hxg5 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Ke4 Kc5 h4 Kb4 d4 c5 a6 b5 d6 c4 Kd5 g4 f6 c3 d7 e4 Ke6 c2 Kf7 c1R h5 e3 d5 e2 d6 e1N a7 g3 h6 g2 Na3 Kc3 Qd3+ Kb2 Nc2 b4 Ne3 Ne7 g8R b3 g7 Qc7 d8N Nf5+ d7 Bc5 Ne6 Na6 Ke8 Bb7+ d8Q Bd4 f7 Qc2 f8Q Nc7+ Kf7 Bc5 Qd2 Nd3 Qfd6 Nf4 Kf8 Nh5 Qd3 Rh7 Rh8 Bb6 g8Q Nfg7 Qh2 Rc8 Nh3 g1N Ng2 Be3 a8B Qb1 Nc5 Qc2 Nhf4 Nh3 Ne2 Qb1 Ng1 Rc3 Qgc4 Qc2 Rc1 Qb1 Rg8 Rh8 Qdd6 Qh7 Qcd3 Rb8 Ke7 Bd5 Re8 Rc2 Nf3 Na6 Qb5 Ka3 Rg1 b2 Ngh4 b1N Bd3 Nc7 Rcf1 Rc1 Rg4 Nc3 Ng2 Bc6 Ng1 Nge6+ Rf7 Be4 Bf1 Ne2 Qdg3 Bc6 Qa5+ Kb2 Qd3 Rb3 Rgg7 Bf3 Rf6 Bc6 Qae1 Rbc3 Bb7 Be4 Ra8 Rb8 Bc6 Rb5 Rh8 Ra5 Bd5 Qf5 Rgg8 Neg7 Kf8 Qh7 Ba8 Bg6 Bf3 Be4 Qed1 Ba8 Be4 Bb7 Q1d2+
Q1n1Nqn1/r3bPnK/PR1b4/3N1rr1/8/Q4kB1/3N2Rn/QQbR3B b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Ra7 h4 Ra4 f4 Ra3 fxg5 Be6 h5 Bf7 Nh3 Ra5 Ng1 Bg6 hxg6 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 d4 c5 a4 h5 f6 b5 Kf5 e4 a5 c4 g7 h4 Kg6 b3 a6 e3 f7 c3 Ne2 h3 Bg2 c2 Nbc3 b2 Rb1 Nf6 g8Q b4 Qh7 b3 Qg1 Ke7 d6+ Ke6 d5+ Ke5 d7 h2 d6 Ra7 Nd4 e2 Nd5 e1B Qh3 Qe7 d8Q Nc6 d7 Bh4 Qb6 Ng8 d8Q Rh5 Qa8 Qb4 Qa5 Bd6 Qa1 Nce7+ Kg7 Nc8 g6 Bd8 g5 B8e7 Bd2 c1B Be1 Qc5 Qf1 Qa3 Rg1 h1N Bg3+ Bf4 Rd1 b1N Qd3 b2 Nb3 Nd2 Qdb1 Qb4 Bf3 Nf1 Rg2 Nh2 Be4 Nh6 Kh7 Qc5 g7 Qa3 g6 Rg5 Bh4 Ng3 g8N Bc1 g7 Ngf5 Ngf6 Ng8 Ne8 Qc5 Qe3 Qb4 Qc5 Qb8 Qca3 Qb4 Nb6 Kf4 Bg3+ Kg4 Bb7 Qc5 Nd5 Kf3 Rc2 Qb4 Rc6 Qc5 Rb6 Qb4 Qc2 b1R Qca2 Rb2 Q2b1 Rf2 Bc6 Ngh6 g8R Qc5 Rg6 Ng8 Re6 Ng7 Re2 Rf1 Rg2 Re1 Bb5 Ree5 Bd3 Ref5 Be4+ Kg4 Re2 Qb4 Bh1 Qc5 Rg2 Kf3 Nec7 Qb4 Ne8 Bd8 Qc2 Be5 Kh8 Qf8 Qcb1 Be7 Kh7 B5d6 Nd2+
4B1Bn/n3NPQQ/3n2N1/2n5/1r1RPK2/R1Q1Q2b/6rB/k1nRqbq1 b - - 0 1 illegal: No possible last move
2RrQ1n1/rbKnR3/1B1nB1N1/BkB1R1q1/8/1Pb1qn2/P7/q1Q1N2Q b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b3 a5 Bg2 a4 Bf1 a3 Qc2 Qd7 Qb2 Qd8 Ba6 axb2 Bxb7 Ra7 Kf1 Ra3 Ke1 Ra8 Ke2 Kd7 Kf3 c5 Ke4 g5 Ke5 g4 h4 g3 d4 e6 f4 c4 f6 g2 f5 c3 h6 c2 h5 Kc7 f7 Kb6 d6 Nf6 d7 Qe7 d8Q+ Kb5 d5 Ne4 d6 Rh7 d7 Ra4 f6 Kb4 Qc7 Qc5+ Bd5 Rh8 d8B Qa5 h7 Nd2 h6 Qb5 Ne2 g1N Rh5 Be7 f8R Ne4 f7 Ra7 Na3 b1N Nf4 Nbc3 Be3 Bb7 Re1 c1Q Rg8 Qa1 f8B Qc5 Nc2+ Kb5 Qc8 Bg5 Ba5 Nf6 Bf2 Qe7 Bfb6 Nce4+ Qc3 Qc5 Ng6 Bd2 Qb2 Bb4 Bd6 Bd2 Rf8 Bb4 Rc8 Rd8 h8Q Ng8 Qh7 Bd2 Qe7 Bb4 h7 Bd2 h8Q Bc3+ Kf4 Nd7 Qc1 Nf3 Qe8 Qg1 Bdc5 e5+ Kf5 Qg2 Ke6 Qg3 Rf5 Qg5 Re2 Nd6 Qh3 e4 Qhh1 e3 Rf7 Ne4 Re7 Nef6 Kd6 Ne4+ Kc7 Nd6 Re1 e2 Be6 Qd2 Rg1 e1Q Rg5 Qh4 Rf5 Qhg5 Ne1 Qde3 Re5
1b2QQ2/1n4Nr/1P3r2/b7/1NQRB3/1nBKbbn1/n1P3N1/q1k1RB1Q b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Kd2 Kf7 h4 Kf6 f4 g5 h6 e5 b6 d5 h5 d3 h7 d4 a6 g4 h6 e4 a7 g3 Qe2 e3+ Ke1 d2+ Kd1 g2 Qa6 Nd7 Ke2 d1N Qd3 Nc3+ Ke1 e2 Kd2 Bb7 Nf3 g1B Rh4 Na2 Bb2 Nc5 Qc4 Ne7 Bc3 Nc1 Ne1 Bf3 Ng2 Nb7 Ra5 Bg7 Re5 Nb3+ Kd3 e1B Re2 Be3 Rg4 Rc8 a8B Rc6 Rh4 Qd5 Rg4 Qa5 Rh4 Rg8 h8Q Qa1 h7 Rf8 Qhg8 Rf7 h8Q B1d2 Qh5 Bh6 Rg4 Rh7 Qge8 Bg5 Qh3 Bh4 Qh1 Bg3 Bb2 Ba5 Nc3 Nc8 Na2 Ncd6 Rh4 Ne4 Nb4 Bh2 Bc3 Ng3 Nd5+ Kg7 Rg4+ Kh6 f6 Re6 f7 Rf6 f5 Kh5 Re4 Kg5 Ngf4 Kg4 f8N Kg5 N8e6+ Kg4 Ng7 Kg5 Qc5 Kg4 Kc4 d3 Rd4 d2 Kd3 d1N Qc4 Kg5 Nb4 Kg4 Be1 Nc3 Ng2+ Kg5 Bd2 Na2 Be1 Nd8 Be4 Nb7 Nh4 Kf4 Bc3 Rfh6 f6 Rg6 f7 Rf6 f8Q Nf5 Bh3 Kg3 Re1 Kf2 Bd2 Bb8 Bc3 Ng3 Bf1 Nh5 Rd1 Ng3 Rd2+ Ke1 Re2+ Kd1 Ng2 Kc1 Re1+
3Br3/R1KN2N1/B1P1r1Rk/1Rr5/bR1Q4/3Q1Brr/r1NP1n2/3rqn2 b - - 0 1 legal: proof: b4 b5 e4 c5 h4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 gxh4 cxd5 c4 Ba3 Bd4 Bc1 Bc5 bxc5 Qd7 Ne2 Qc7 Ng1 Qd8 Ke2 Kf7 Ke3 Kg7 Kf4 h5 Ke5 a5 g4 c3 f4 c2 d6 e6 c6 a4 d7 a3 Kd6 h3 f6+ Kh6 f7 e5 f8R h4 f5 a2 b6 e4 b7 h2 f6 h3 f7 e3 Qf3 e2 Bb2 c1R Na3 e1R Qd3 Re4 Ne2 Nf6 Ng3 Qe8 d8Q Nbd7 b8R Nd5 Rg8 N7f6 f8N Ba6 Nd7 Ne3 Rb4 Bb5 Kc7 Re6 Nc2 Ra3 Nh5 Ne4 Bf6 Ba4 Ng7 Nf2 Qd4 Rb3 Ba6 Nf1 Rb1 a1R g5+ Kg6 Rb5 Rg3 R1b4 Ra2 Be7 Kh7 g6+ Kh6 Rg1 h1R Rf8 h2 Rf7 Rce1 Qd3 R1e4 Bh4 Rd4 Qf6 Rf4 Qfd4 Rf5 Bd8 Rc5 Kb8 Rd6 Ne6 Rf3 g7 Ng3 g8B Re3 Rg2 Rd1 Nb6 h1R Ng7 Rh3 Ra7 Nf1 Kc7 Qe6 Rg5 Reg3 Nd7 Qe1 Bd5 Re6 Bf3 Rhe8 Rg6+
2BN1nR1/b1KQrQ2/Q2R3r/R3NPq1/1n1Q4/4q1PB/4nkq1/3rq1B1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 f5 f4 b5 axb5 Be6 h3 Bf7 e4 Bh5 exf5 Bg4 hxg4 gxf4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 d4 h5 b4 a5 b6 e5+ d6 c6 g5 f3 b7 a4 g6 a3 g7 h4 d5 h3 b5 a2 b6 h2 Ne2 f2 Rg1 h1R Nd2+ Ke3 Nc4+ Ke4 Nf4 Nf6 g8B Bg7 d7 Nh7 Kd6 c5 Ne6 Ra7 Bf4 Nf8 Bh2 Na6 b8Q Nb4 b7 Qg5 d8Q Rh6 Qa8 Bh8 b8Q Re7 g3 Qe3 Qd3+ Kf3 Bh3 f1Q Qd7 e4 Qba7 Kf2 Qd4 Qg2 Ne5 c4 Kc7 c3 d6 c2 Nd8 c1N Rd1 Ne2 Be6 Re1 Rd3 Rd1 Qa6 Bf6 Qad5 Bg7 Rc1 a1Q Rc5 Qb2 Ra5 Qd2 Qdb7 Re8 Qf7 Re7+ d7 Qc1+ Qc5 Bf6 Rd6 Qd2 Qc3 Qg5 Qcd3 e3 Qd4 Qc3+ Qbc6 Qc2 Nd3+ Kf1 Qb2 Ng1 Qg6 e2 Nf7 Bd4 Nde5 Ba7 Qd4 Qb3 Qf6 Re8 d8R Nh7 Qg6 Qbe3 Bc8 Re7+ Qd7 Kf2 Rg8 e1Q Nd8 Ne2 Qf7 Nf8 Bg1+
N1b1R3/3b1BKR/r2qqQRP/1N6/1rB2N1r/1N1n1P2/1Q2bk2/B2q2q1 b - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 h5 g3 b5 axb5 g5 Bf4 h4 Ra4 g4 Bc1 Bg7 Ra1 Bf6 Kd2 h3 Ke1 Bh4 gxh4 g3 Na3 g2 Kd2 Na6 Nb1 Nc5 Ke2 Ne4 Ke1 Ng3 hxg3 Rh7 Qf3 Rh6 Qd1 Rh8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 Kg6 d5 c4 a5 b4 e5 f6 d3 c5 d4 f7 h2 f8N d2 h5 a4 f3+ Ke3 g4 a3 b6 d3 c6 e4 b5 a2 g5 Qd5 c7 Ra4 b7 Bd7 b8Q Bg4 c8N Bh3 b6 Kf2 b7 e3 Kg7 e2 g6 e1Q Nc3 Rf4 Nge2 g1Q Nd4 Rg4 Nfe6 Qd6 Ncb5 Re4 Nb3 Ne7 Nf4 Rb4 Bb2 Bd7 Nb6 Qee6 Na8 Nc6 Qb1 d1B Qf8 d2 b8R Bc8 Qf6 Ne5 Bc4 Nd3 Qc2 Bd7 Re8 Be2 Bc3 d1B Qb2 Bc2 Rc1 a1Q h6 Qd1 Rg1 h1R Rg4 Qa7 Ra1 Qae3 Ra7 Rh4 Rd8 Ne1 Qa1 Qe6e5 Kf7 Bdf5 g7 Kf1 g8B Qg1 Rg6 Kf2 Nb6 Bg4 Qa2 Bcf5 Ba1 Nd3 Qb2 Qe3 Re7 Rh7+ Kf8 Bc8 Na8 Bh3 Bgd5 Rf7+ Kg8 Bhg4 Ree8 Ra7 Rd7 Ra6 Rh7 Bgd7 Bf7 Qee6 Kg7
2B1krnR/Q2r1R2/2B3P1/R1Q1QnPQ/rqbN1nN1/3q4/7q/2K1Nn2 b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bg4 b3 Bc8 h4 Ne7 g4 Rg8 Ba3 Nd7 Bc5 Ba6 Be3 Bc8 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Nh3 Rh8 Ng1 Ng8 d4 h5 Kd2 c5 e4 a5 b4 f5 d6 a4 d5 a3 e6 c4 d7+ Kf8 e7+ Kg7 e8N+ Kf8 b6 c3+ Kc1 c2 b5 f3 b7 f2 d6 a2 e5 f4 e6 f3 b6 h4 Nd2 h3 Ba6 f1Q Nf6 f2 e7+ Kg7 e8B Kf8 Ne2 h2 Ng4 Qe1 Nd4 f1N N2f3 Nc6 b8Q Rh7 b7 Nce7 Qa7 Nf5 b8Q Qb4 Ne1 Bb7 Qe2 Bd5 Bc8 Bc4 Qe5 Rf7 Qbc7 Rg7 Rg1 h1Q Qcc5 Qh2 Rg3 Rf7 Ra3 Rh7 Ra5 Rf7 Rb1 Rg7 Rb3 a1R+ Rb1 Ra2 Rb3 Ra4 Rf3 Qf6 d8Q Rd7 Qdc7 Qd8 Qh8 Rb8 Qh5 Ra8 Bf7 Rb8 Bd5 Ke8 Bc6 Bb3 Kb2 c1N+ Kb1 Ne2 Qe5+ Nfe7 Rf7 Nf4 Kc1 Bc4 Qec5 Nf5 Qe5+ Qe7 Qac5 Qb3 Q7a7 Qd3 Ba6 Kd8 Qh6 Nf6 Qh5 Rdb7 Qb4 Rc8 d7 Qf8 Rh7 Ng8 Qbb5 Qb4 Qbc5 Rcc7 Be4 Rb6 Bc8 Rf6 Bc6 Rf8 Rh8 Be6 Qc3 Ke7 d8R Rb7 Rd7+ Ke8 Rf7+ Rd7 Qg7 Bb3 Qcc5 Bc4 Qge5+
1N6/RRB3B1/Bn1q1P2/1K1krP2/2Nb3r/2QN1Q2/b2r1qbQ/1bQ2q2 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 f5 e4 d5 exf5 b5 cxd5 Nc6 axb5 a4 Qb3 Kd7 Qd1 Na5 bxa5 Ke8 Ke2 Kf7 Kd3 e5 Kc4 c5 g4 h5 d4 a3 f4 a2 d6 h3 g5 e4 d5 h2 a6 h4 f6 h3 a7 e3 b6 e2 d7 e1R b7 Qe7 b8N Qd6 d8B Be6 Nd2 Re5 Ne2 Bg7 Bc7 Rh4 Kb5 c4 Bb2 c3 Nc1 c2 Nd3 c1Q Nc4 Qe3 Qc1 Ne7 Qc3 Qf3 Be2 Nc8 Rhb1 h1B Qc1 h2 Bc3 Re3 Bd4 Qa3 d6 Nb6 d7 Qd6 d8Q Bg2 Qc8 h1B Qh8 Qf2 Be5 Rg4 Qh2 Rh4 Ne1 Bh6 Na5 Qf1 Ka6 Na4+ Rb6 Bf5 g6+ Ke6 Qc3 Bd5 Bd3 Qh3 g7 Bg6 Be2 Qg2 g8Q+ Bf7 Bd3 Be4 Qg5 Qf3 Qgg1 Bg2 Bd4 Re2 Be3 Rd2 Bb5 Bc2 Nd3 Bg5 Nbc6 Bg8 Rb7 Re8 Qf1 Qe2 Qf3 Bf7 a8Q Nb6 Nb8 Qf2 Bc4+ Kf5 Qa7 Re5 Bb5 Bfb3 Nc4 Ke6 Qa8 Re4 f5+ Kd5 Qa7 Bf4 Qa8 Be5 Bh6 Bd4 Bg7 Qfg3 Rb1 Qf2 Rb2 a1Q+ Ra2 Qaf1 Ka5 Qdg3 Kb4 Qe5 Qa3 Bb1 Qac1 Qf4 Ra8 B3a2 Ba6 Q4g3 Kb5 Qd6 Qe2 Re7 Raa7 Re5 Qf3+
1q5r/2q3QP/5n1N/n3BR2/KBR2bP1/Q2RrqR1/3QN3/kqrn2B1 b - - 0 1 illegal: No possible last move
5kB1/K2n1N2/2Q1bbn1/N1R2P2/1Q1Bb1q1/3P4/2QN2Qn/bR1B1rbb b - - 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 Ke2 e5 Kd3 c5 Kc4 h5 b4 h4 d6 e4 b6 e3 Kb5 c4 g7 h3 d3 c3 d7+ Kf7 b7 h2 Nd2 c2 Nh3 a4 Be2 f3 Bb2 c1B Bd4 a3 Qc2 f2 Bd1 f1B Rb1 a2 g6+ Ke7 Ng5 a1B Kc5 e2 b5 e1N b6 Nf3 Nf7 Bg2 Rb5 Qe8 d8N Nd7+ Kc6 Rh5 b8Q Bcb2 b7 Rh4 Kc7 Rf4 Qa8 Bc3 Rf1 h1B b8Q Nh2 Rc5 Be4 Qb4 Rf2 Re1 Rf1 Nb7 Bcb2 Na5 Bc3 Be3 Bf6 Qd5 Qd8+ Kc6 Ke8 Bd4 Ne7+ Kb5 Qc7 g8B Qf4 g7 Qg4 Qb7 Ng6 Ka6 Bd6 Ka7 Bf4 Qc6 Be3 Bf3 Bg1 Rb1 Ba6 Bd1 Bc4 Bh7 Ke7 g8Q Be6 Qg7 Ke8 Bg8 Ke7 Qh7 Ke8 Qh3 Kf8 Qg2
2R3nR/rn1Q1KQN/1B6/nP3NB1/PrN4R/1r1n1N2/r4Q1b/1k2q2n b - - 0 1 legal: proof: e4 d5 b4 b5 g4 f5 exf5 a5 bxa5 h5 gxh5 b4 c4 Ba6 Be2 Bb5 cxb5 Kd7 Bd3 Ke8 Bc4 dxc4 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 g5 Ke6 Kd4 a4 Kd3 f4 c5 h4 g4 f6 c3 f7 g3 h6 b3 h5 b2 h7 c2 h6 c4 f5 c3 f6 g2 a6 Nc6 a7 Na5 Ne2 g1R Nd4 Nb7 Nf5 Qa5 Qg4 Rg2 Rh4 Bg7 f8Q Qb4 f7 Be5 Qfg7 Bh2 Na3 b1R f8N Rb3 Kf7 e5 Nc4 e4 Qf4 e3 Qf2 e2 Ra2 Rb8 a8Q e1N Qaa7 Ra8 Rb2 Nc5 Qc7 Nb7 Ra2 Ra7 Ra1 Rg4 Qd7+ Ke4 d4 Kd3 Bf4 c1N d5 c2 d6 Ne2 Bg5 c1N Ra2 Ng3 Rc2 Nce2 Rc1 Nh1 Rc2 Nd4 Rc1 Ne7 Rc2 Rg8 h8N Ndc6 h7 Nca5 Nhg6 Qc3 h8R Qd2 Nce3 Rgb4 Nh7 Rc8 Rc5 Ng8 Nc4 Kc2 Nge5 Kb1 Nf3 Nd3 Rc7 Rd8 Rc8 Qe1 Qe8 Rb2 d7 Ra2 Qe7 Re8 d8B Rb3 Qc7 Re4 Qd7 Rg4 Bb6 Rf4 Nd6 Rfb4 Nc4
B1N1R1B1/Q3q2R/3B3N/q2bb2P/7k/2rR1P1R/b2q1b1N/K3nqQr b - - 0 1 legal: proof: c4 b5 g4 f5 e4 fxe4 a4 h5 axb5 g5 h4 d5 cxd5 Nd7 hxg5 h4 Bc4 Ndf6 Bf1 Nh5 gxh5 Qd7 Nc3 Qd6 Nb1 Qd8 b4 Kf7 d4 c5 Kd2 e5 Kc3 a5 Kb2 h3 d6 e3 b6 h2 b5 e4 b7 a4 b8Q c4 g6+ Kf6 b6 Kg5 d7 Qe7 d8R Bg7 b7 Nf6 d5 Kh4 d6 e2 d7 e1B Na3 e3 Nb5 e2 Na7 a3+ Kb1 c3 Bg2 Nd5 Bf4 Rf8 Bd6 Be5 g7 Nb4 g8B Rf3 Qc7 Nc2 b8R Bb7 Nc8 Bd5 Qa7 Be6 Rb3 Rb8 Re8 a2+ Kc1 Bf7 d8N Rb6 Rab1 a1Q Ra3 Bb3 Nf7 Ba2 Nh6 Rg3 Ba8 Rc6 Nh3 Rg1 Ng5 Rf1 Rg1 h1B Rg3 Bhd5 Rd3 Rh1 Rb3 Ne3 Rb7 c2 Rc7 Qd4 Rbb3 Rc3 Kb2 Ng2 Ka1 Qa4 Qb1 c1Q Rd7 Qd2 Nf3+ Kh3 Rc7 Qa5 Nh2+ Kh4 Qc1 Qa6 Rg3 Qa5 f3 Bf2 Qg1 Ne1 Rcb7 Qe6 Rh7 Qe7 Qb6 Ng2 Qa7 e1Q+ Rb1 Qf1 Re1 Qfb5 Re3 Ne1 Rd3 Qc4 Re3 Qce2 Rd3 Qf1 Rh3+
n4Br1/Bn2q1NR/P4q2/n4q2/Q1N1qQ2/b2n1r2/3Q1RPK/kRB2Q2 b - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 a4 f6 g6 f7+ Kd7 b3 Nf6 bxa4 Ng8 a5 Ra6 Na3 Ra7 Nb1 Ra8 f4 Nf6 f5 Ra6 h3 Ng8 f6 Ra8 Bd3 Kd6 Be4 Bg4 hxg4 Kd7 Bf5+ gxf5 Kf2 Kd6 Kg3 Kc5 d4+ Kc4 a4 c5 a6 b5 a7 h5 d6 e5 d5 e4 a5 e3 d7 b4 g5 h4+ Kh3 b3 a6 b2 g6 f4 d6 e2 g7 e1N Be3 f3 Qc1+ Kb3 Bg5 c4 Qe3+ c3 Qe8 c2 Ne2 c1N Nbc3 b1Q Kh2 Kb2 Ne4 h3 Nf4 f2 Nh5 f1Q Nd2 Nh6 g8R Qff5 Ng7 Qe7 d8B Qbe4 d7 Ned3 Bb6 Nb3 d8Q Na5 Qa4 Nd7 Bf2 Rb8 a8Q Rb3 Ba7 Nb6 Qab8 Na8 Qf4 Ra3 Rab1+ Ka2 Kg3 h2 Rhf1 h1Q Nc4 Qh5 Rf2+ Qhe2 Kh2 Q4e6 Rb2+ Ka1 Qdd6 Q2e4 Qdb4 Qg6 Qbd2 Nf5+ Bh6 Nd6 Rb3 Rh7 Rh8 Ndb7 Rb4 Qe6f5 Rb6 Qed7 Rb5 Bd6 f8B Qde7 f7 Qgf6 Nh5 Rg7 Rh7 Rg8 Ng7 Ra2 Rb6 Ba3 Rb4 Rc2 Rb1+ Ka2 Nb2 Rc3 Nc4+ Nb2 Bg5 Rf3 Qfd6 Qb5 Q6d3 Q4e6 Qf1 Qe4 Qd8 Qfc6 Bc1 Qcg6 Qd2 Qbd7 Ne6 Qdd4 Bh6 Qdg7 f8Q Qg7f7 Qb8 Qgf5 Qbf4 Qf7f6 Qdb4 Rb3 Bf8 Rf3 Nd2 Nd3 Ng7 Qe3 Nc4+ Qe2 Rb2+ Ka1 Qbd2 Q2e4 Rb1+
1Q1Q3k/1P2BKNb/1bb1N1n1/B2b1nPq/rn2R1N1/4q1R1/3B3B/4n2Q b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f5 Ba6 f7+ Kd7 f6 Kd6 cxd3 Bc8 d4 Ke6 d5+ Kd7 h4 a6 g4 Ra7 g5 Bb7 Bd3 Bc8 Bf5+ gxf5 g6 Ra8 Ke2 a5 Kf2 Ra6 Ke1 Rc6 Rh2 Rc4 Rh3 Rg4 Rh1 Rg5 hxg5 Bh6 Nc3 Bg7 Nb1 Bf8 Ke2 c5 Kd3 e5 Kc4 h5 d4 a4 b4 a3 d6 Ke6 b6 h4 g7 a2 b7 f4 d7 e4 b5 f3 b6 f2 Nc3 f1B+ Qd3 h3 Nb5 h2 Bd2 e3 Re1 a1N Nf3 e2 Ne5 Bg2 Qh7 Nb3 Rhg1 h1B Ng4 Ne7 g8Q Bc6 Rg3 Ng6 Nd6 Na6 b8B Nb4 b7 Qe8 d8B Bhg2 Qh3 Rh4 Qh1 Bgf3 Nf5 Bfd5+ Kc3 c4 Ba5 Bc5 f8B+ Qf7 Be7 Bb6 Bc7 B8d7 Qb8 Qh7 f7 Qh5 f8N+ Kf7 Bcd6 Kg8 Ng7 Kh8 Be5 Bf5 Nfe6+ Nf8 Bc7 Bh7 Bcd6 Bde4 d5 Nd4 Be5 Nf5 d6 Bg2 d7 Bgd5 Rc1 e1N d8Q Rh2 Bef4 Re2 Ra1 Re4 Ra4 Rd4 Rg2 Re4 Bh2 Rd4 Rg3 Rf4 Kb2 c3+ Ka3 c2 Kb2 Be4 Kc3 c1Q+ Kb3 Qa3+ Kc4 Qe3 Ra3 Be8 Rd3 B4c6+ Rd4 Ng6 Re4 Rf2 Bc3 Ra2 Bd2 Ra4 Rd4 Bg2 Re4 Nc6+ Kd5 Bf3 Nf8 Nb4+ Ke6 Bc6 Kf7 Bd1 Ne8 Bb3+ Ne6 Bbd5 Ng7+
4b2R/k2bNQnR/r1Qr4/2PN2PR/1Q1b3b/BK2n3/R2N2B1/rb4r1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 cxd4 f3 Nc6 f4 Nb8 fxg5 Nh6 g4 Ng8 h4 Nc6 g6 Na5 h5 Qc7 g5 Qb6 g7 Qg6 hxg6 Nc6 Rh3 Nb8 Rh6 Ba6 Rh1 Bc8 Kd2 Kd8 b4 Kc7 c4 Kb6 Kc2 h5 f6 e5 f7 a5 c5+ Ka7 Bh3 d5 Kb3 h4 Kb2 a4 Be6 a3+ Kb3 e4 Qf3 d3 Rh2 a2 Bf5 e3 Be6 d2 Bb2 d1R Bd4 e2 Bg4 e1B Bh3 Nh6 g8N Bg7 f8Q Nc6 Bg2 h3 Ne2 Ne7 Nec3 Bh4 Nd2 Bd7 Q8f7 Nef5 Ne7 Ne3 Bf6 d4 Qc6 d3 Ncd5 Rh1 Bb2 Nhf5 Ba3 Bd4 g7 Rh6 g8R Rg1 Rg7 Rd6 Rh7 Ng7 Rh1 h2 b6+ Kb8 b7 Ra6 b5 Ka7 b8R Be8 Rc1 a1R Rc2 Bd7 Rbh8 Be8 Nc4 d2 Rh5 d1B Nd2 Bf3 Ra2 Be4 R5h7 Bb1 b6+ Kb8 b7 Ka7 Rh5 Re1 Rf1 h1B Rf6 Rg1 Rfh6 Bf5 R6h7 Bfd7 Bh3 Be4 Bg2 Ra4 Qc7 Bb1 b8Q+ Ka6 Qb4 Ra5 Qc8+ Ka7 Qc6 Ra4 Nc4 Ra6 Nd2
1B4RB/3n3R/1NNNKB1Q/1q2b1Q1/k2PB1nq/1n3q2/2P5/1qRb1b1q b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 d5 e3 b5 axb5 d3 Kd2 Kd7 Ke1 d2+ Ke2 Ke8 Na3 e5 Qe1 a5 Nb1 g5 Qd1 d4 Kf3 d3 Kg3 e4 f4 Rh6 Kg2 Rd6 Kf2 Rd4 exd4 Ra7 Bh3 Re7 Bf1 Re5 fxe5 Qd7 Bh3 Qd5 Bf1 Qd8 Ke3 Kd7 b4 f5 h4 a4 b6 Kc6 h6 Kb5 b7 g4 Kf4 g3 e6 a3 Ke5 f4 e7 f3 e8N g2 h7 a2 h8B f2 h5 e3 h6 e2 h7 e1N Nf3 g1Q Nd6+ Ka4 b5 Be6 b6 Nf6 Bg2 f1Q Na3 Bh3 Nac4 Ng4+ Ke6 Qh4 Nfe5 Bg7 Nc6 Be5 Be4 Nd7 b8B Nf3 b7 Qe2 Ba3 Bf1 Qc1 d1B Qg5 d2 Rc1 a1Q Bb4 Qge3 Ba5 Qa2 Bd8 Qb1 Bdf6 Qeb3 Rh3 Qb5 Rh2 Ne1 Rh1 Qf3 Rh3 Nd3 Nb6+ Ka3 Ba7 Qh1 b8R Qf3 Rg8 N3c5+ Ke7 Nb3 Ke6 Bde2 Bb8 d1Q Bhg7 Qh1 h8Q Qdd3 Qhh6 Qdf3 Bh8 Bd1 Qf8 Qe1 Rh7 Qeh4 Ne7 Kb4 Qfg7 Ka3 Q7h6 Kb4 Nc6+ Ka3 Nbc8 Ka4 Nb6+
1q1kB3/QqrrRKn1/Qn1B3P/2Q4B/4r2r/1RN4P/3qNQ1r/rN6 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 d5 e3 b5 axb5 d3 Kd2 Kd7 Ke1 d2+ Ke2 Ke8 Kf3 e5 Ra4 d4 Kg2 d3 Ra6 e4 Ra1 Bc5 f3 Bd4 exd4 e3 Be2 Bf5 Bf1 Be4 fxe4 Qh4 Qg4 Qe7 Qd1 Qd8 Kf3 f5 Kf4 a5 Ke5 g5 Ke6 e2 c4 e1R b4 g4 d5 g3 h6 f4 c5 g2 c6 f3 d6 f2 b6 a4 c7 a3 c8Q a2 b7 Re3 b5 Re2 b6 Nc6 b8N Ra6 e5 Nge7 d7+ Kf8 b7 Na5+ Nc6 Ra8 b8Q Nf5 h3 Ra7 Nb4 Nc4 Nd5 Rc7 Qa6 Nb6 Qe1 d1R Ndc3 d2 Qba7 Qb8 Kf6 Re4 e6 Rh7 Nge2 g1R Ba3+ Re7 Bd6 Rgg4 Bg2 f1Q Qf2 Ng7 Bf3 Rh4 Bh5 Qg2 Re1 Rc1 Qc5 d1Q Qf2 Rc2 Qc5 Qe8 d8Q Qd2 Qdc8 Qd8 Qf2 Qh1 Kg6+ Ke8 Kf6+ Rf7+ Kg6 Rcd7 Qcc5 Qb8 e7 Rb2 Nd5 Rc7 Ndc3 Kd7 e8B+ Kd8 Rg1 Rc2 Rg3 Rfd7 Rf3 Rb2 Rf7 Rc2 Re7 Qg2+ Kf7 Rb2 Na3 Rc2 Rc1 a1R Rg1 Qh1 Rg3 Qb1 Rd3 Qb5 Re3 Qc6 Rg3 Qcb7 Nab1 Rc1 Nd5 Rh1 Rb3 Rh2 Ndc3
1n1B4/1RrR4/3N4/1b2rk1K/n1qBp2b/r1Q2Nb1/NP1BP3/N2n2RQ b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 g4 h5 g6 a6 bxa6 Be6 g5 Bg4 Bh3 Bc8 Bg4 hxg4 Kf2 Kd7 Kg3 c5 d4 f5 h4 e5 d6 Ke6 d7 c4 a7 e4 g7 c3 g6 c2 d5+ Kf6 d6 Ke5 h5 Nf6 Kh4 g3 g8N f4 h6 f3 h7 g2 g7 f2 Bd2 f1N Ne7 c1R g8N Qb6 d8B Bf5 d7 Nh2 Na3 Rc3 Nh6 Nf1 Nd5 Qc7 Nc2 Ne3 Ndb4 Be7 Na2 Nfd5+ Kh5 Re8 h8B+ Kf4 Rh3 Qc4 Nf3 g1B Bd4 Bf2 Nf7 Bg3 Qh1 Nb6 Rg1 Beh4 Nd6 Na4 Na1 Be6 Rh2 Bd5 Rhg2 Bc6 Rf2 Bb5 Rfg2 Bh2 Rg7 B2g3 Rh7 Na6 Rg7 Rc8 a8Q Ra3 Re7 Nb8 Qa5 Rc7 Rg7 Re7 Qc3 Re6 B8f6 Re7 d8R Re8 Rdd7 Re6 Ne8 Kf5 Bd8 Nd1 Rh7 Re5 Rhe7 Rc6 Rb7 Rcc5 Red7 Rc7 Nd6+
1n1rb1k1/r5n1/1bQ1QNB1/BRq5/2QP4/4q1nN/1Q1PpR2/1KN1r1B1 b - - 0 1 illegal: No possible last move
1n2NB1b/q2Q1q1Q/np3n1R/N1P2q1B/8/RPK5/Q2N1b1N/r2rkB2 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 gxh5 b6 a4 a6 b3 Kf7 Bxa6 Nh6 a5 Ke8 Bf1 Ba6 Bh3 Bf1 Bxf1 Ng8 Kd2 Kf7 h4 Kf6 c4 Ke5 f4+ Ke4 h6 g5 f6 e5 f7 d5 h5 g4 h7 g3 c5 d3 h6 d4 f5 g2 f6 Qd6 a6 Bg7 f8Q Qc7 f7 Qa7 Ra3 Nf6 Nf3 g1B Nh2 Bf2 Qe2+ Kf4 Qd6 Kg3 Qd7 Rd8 h8Q e4 Qh7 Bh8 f8N e3+ Kd1 d2 Kc2 d1N Ng6 Nb2 Ne5 d3+ Kc3 d2 Nc6 d1Q Nd2 Nd3 Na5 Nb4 Bb2 Qc7 a7 Qb1 Qa6 e2 Bc1 e1Q Qe2 N8c6 Qa6 Rac8 a8B Nb8 Bf3 Qe7 Bh5 Qa7 Ra2 Re8 Nac4 Qf5 Bhe2 N8c6 Nhf3 Nh5+ Qg7+ Kf4 h7 Ra8 Nb1+ Ke4 Qa4 Qa5 Bh6 Nb8 Rh3 Qef8 Nh2 Q8f7 Qa3 Re5 Qg8 Qa4 Bf8 Rd5+ Qg7 Rd1 Nbd2+ Kf4 Qb2 Qa6 Qb1 Qb7 Qc2 Ra3 Na5 N4a6 Rh4+ Ke3 Bf3 Nf6 Rh6 Qa7 Bh5 Ra4 Qg6 Bg7 h8N Qg8 Nf7 Bh8 Nd6 Qf7 Qh7 Ra3 Ne8 Ra4 Rb2 Raa1 Ra2 Bh4 Rb2 Kf2 Ra2 Ke1 Ra3 Bf2 Qa2
b6B/1b1NqNBP/2r3nK/3N2B1/2QR2p1/2B1brP1/2kR1R1n/1q3rQ1 b - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 fxe5 h4 axb5 h3 g3 Bd7 Bg2 hxg2 Ra5 Be6 Ra1 Bc8 Kf2 Ke7 Kf3 a5 Kf4 c5 Kg5 f5 d4 c4 b4 c3 e4 g6 h4 f4 e6 Kd6+ e7 a4 e5+ Kd7 d6 Ke6 d5+ Kf7 b6 c2 h5 f3 b7 f2 e6+ Kg7 b5 f1B d7 a3 h6+ Kh7 b6 a2 d6 Bg7 Bd2 c1R Rh2 Ra3 Nc3 Nf6 e8R Ra8 e7 Ng4 Nf3 g1Q Rf2 Ra6 Ne5 Rf8 Nf7 Qh2 Nd5 Nc6 b8N Nce5 b7 Rac6 Bc3 Bg2 Qg1 Rf1 Rd1 a1Q Rd4 Qc7 d8B Qb1 Nd7 Be4 b8B Bb7 Rd1 Qg2 Ba7 Nh2 Bb6 Ba8 Bbd4 Qa7 B8b6 Qa3 Rd8 Qab4 Nh8 Rf3 e8Q Qc5 Qf7 Qa3 Kh4 g5+ Kh5 g4 Qf4 Ng6 Nf7 Bf8 Bh8 Bg7 Be3 Bd4 Bc1 Bb6 B1b2 Be3 Bcg7 Qa7 Bbc3 Bb7 N7b6 Qa3 d7 Qe7 Qc7 Rcf6 Qc4 Rc6 Rfd2 Ba8 Rd4 Qd2 Rf8 Bf5 d8B Bc8 Bc7 Ba6 Bf4 B6b7 Bg5 Nf4+ Kh4 Kg6 h7 Kf5 Nd7 Ng6+ Kh5 R3f2 Kh6 Rf4 Rd3 Bd4 Nd8+ Ke4 Rf6 R4f2 Nf7 Rf4 Rf3 Rf5 Rf2 Rf3 Qa4 Kd3 Rf4 Bc5 Qc4+ Kc2 Re4 Be3 Rf4 Re1 Rd4 Rf1 R1xd2+
1kr1Q3/1qn4p/5q1R/2BQbRq1/rN1P3B/4PBQ1/1Rn3BN/5Kbr b - - 0 1 legal: proof: c4 b5 g4 e5 f4 d5 cxd5 g5 a4 Bf5 axb5 Bg6 h3 f5 Ra3 exf4 Ra1 Bh5 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Kf7 Qc2 Ke7 Qd1 Ke8 b4 Kd7 f6 Kc8 g5 c5 f7 a5 b6 f3 e3 g2 b7+ Kc7 g6 a4 g7 a3 d6+ Kd7 b5 a2 b6 c4 Na3 c3 Nc2 Qe8 Rh6 Qe7 Rb1 a1Q Ba3 Na6 b8Q Nf6 g8B Ne8 b7 Bg7 f8R Qg5 Bc5 Qb2 Bd5 Nb4 d4 Qb3 Rb2 f2+ Ke2 Ra5 Nf3 Ra4 Nh2 Rg8 Qa8 Nc7 Qe1 Bf6 b8Q Bh8 Na1 c2 Rf4 c1R Nc2 Rca1 Be4 Rc1 Qd5 Rd1 Qb5+ Kc8 Qbc6 Rb1 d7+ Kb8 Qg6 Rc8 Qe8 Be5 d8B Qg7 Bh4 Qg5 Qde6 Qd5 Rf7 Qb7 Qd5 g1B Bfg2 f1Q+ Kd2 Qff5 Ke2 Bf2 Bef3 Qfg6 Rf5 Q6f6 Qc3 Rh1 Qe1 Bg1 Qg3 Qg4 Kf1 Qgg5 Ne1 Nc2 Nd3 Qf4 Nb4 Qg4 Qec6 Qgg5 Qe8
1NB3q1/BQR1nP2/b1q1N2R/5R1r/1brN3R/Q1P1p2n/1bk1K3/6rQ b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 h4 Kf7 f4 Kf6 c3 g5 b6 d5 a6 e5 b7 g4 h6 e4 h7 g3 h5 d3 a7 d2+ Ke2 d4 h6 g2 Qb3 d1R Qa3 Ne7 Nf3 g1B Be3 Ng6 Nbd2 Qd5 Bh3 Qg8 Nb3 Nc6 b8N Bb4 Ng5 Nce7 Ne6 Rf1 Rd1 Ba6+ Rd3 Bf2 Bg4 Rg1 Rh4 Be1 Bf2 Bd2 Bh3 Kf7 f6 Bc1 f5 Bb2 Bg4 Qc8 Bh3 Qc6 Bg4 Rc8 h8Q Rc7 h7 Nf4+ Kd2 Nh3 Ke2 Nd5 Qc8 Ne7 Qb7 Rc8 h8R e3 Bg3 Rc7 R8h6 Rc8 Bc7 Rh8 Bb6 Rh7 Nd7 Rc8 a8Q Rhh8 Ba7 Rh7 Rg6 Rh5 Rh6 Rc7 Qd8 Rc8 Nb8 Rc7 Qd5 Rc8 Kf3 Rc7 Rd1 d3 Nbd4 d2 Rb1 Qa4 Rf1 Rc4 Ke2 Qe8 Rf2 Qf8 Qh1 Qg8 Kd3 d1Q+ Rd2 Qa4 Ke2 Qc6 Rd1 Ba5 Rb1 Bc1 Rb5 Bb4 Rc5 Qd5 Rc8 Qc6 Rc7 Bb2 Nf4 Kf8 f7 Kg7 f8R Qc5 Rd6 Qc6 f6+ Kh7 Nfe6 Kg6 f7 Kf6 Re8 Ke5 Rec8 Qg7 Rh8 Qf8 Rh6 Qg8 Nf3+ Ke4 Rd5 Rg3 Nfd4+ Rg2+ Ke1 Kd3 Kf1 Kd2 Rf5 Kc1 Ke1 Rg1+ Ke2 Qd6 Rf4 Kb1 Nd8 Kc1 Bc8 Qc6 N8e6 Kb1 Rf5 Kc1 Nb3+ Kc2 Nbd4+
Nr2Qq2/1q3PNR/N1n2B2/q2Q1P1R/3r1k2/b1pBn2Q/1b1n3K/2R1N3 b - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 a5 e4 f5 exf5 g5 a4 Bd7 axb5 gxh4 b6 a4 b3 a3 Ne2 Ba4 bxa4 Qd6 Ng1 Qd8 f6 Kd7 g4 Kd6 f4 c5 Kf2 h5 Kg2 e5 d4 c4 a5 c3 b7 a2 f5 e4 g5 e3 a6 e2 a7 e1Q g6 Qd7 f7 Ne7 g7 Qc8 g8R Ng6 Na3 Qce6 Nh3 Q1e5 Qf3 Qe8 Nc2 Ne7 Nf4 h3+ Kg1 h4 Rg5 Rh7 Ne1 h2+ Kg2 Rh5 Bd3 h3+ Kg3 Rh4 Ba3+ Kd7 d6 Nd5 Rc1 Ne3 d5 a1B Bc5 Qd8 Bd4 Bb2 Qh5 Qh8 Bf6 Qa5 Ne6 Rd4 Ng7 Be7 Qf3 Qf8 Qg4 Kd8 d7 Kc7 Qh4 Bea3 d6+ Kc6 d8Q Kd5 d7 Kd6 Rg1 h1Q Qe8 h2 Qh5 Qc6 d8Q+ Qd7 Rf1 Nc6 b8N h1N+ Kh3 Kd5 Na6 Ng3 Rh1 Rb8 a8N Ngf1 Qg4 Nd2 Kg3 Qh8 Rh7 Qf8 Rgh5 Kd6 Qh3 Kd5 Be7 Ke5 Kh2 Kf4 Bf6 Qb7 Qd5
2Qb4/n1N1P1pq/3Q1n1k/1QR4B/K1P3r1/1r2q1R1/1rNNNb2/3R2Bq b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 b6 h5 gxh5 a5 b3 a4 Qd3 a3 Qd1 Bb7 Bg5 Bc6 Bc1 Ba4 bxa4 Bc5 Bg2 Be7 Bf1 Bf8 Kd2 f5 e4 Kf7 c4 d5 Kc2 f4 Kb3 f3 h4 d3 h6 Kg6 e6 a2 b7 d4 e5 d2 h5+ Kh7 e7 f2 e8Q d3 e6 Bd6 a5 Qg5 a6 Qg2 a7 Bg3 e7 Bc7 Ne2 Qh2 Rg1 Bd8 Qb5 Nc6 b8N Qg2 Na6 Qe4 Nb4 Nf6 Ka4 Qe3 Nc2 Rb8 a8N Na7 Nc7 Rf8 Bg2 f1R Bf3 Rf2 Rg3 Rh2 Ba3 Rh4 Bc5 Rg4 Qd7 Rb3 Qb5 Qe5 Bg1 Qe3 Qf1 d1Q Nd2 Qe1 Rd1 a1B Qh3 Bd4 Qh2 Kg8 h7+ Kf7 h6 Kg6 Nb1 d2 h8Q Qd3 h7 Bf2 Qg8 Qf5 h8R Qh5 Qe6 Qh7 Qc8 Rb2 Rc1 d1Q Rg8 Qc3 Nd2 Qe3 Rb1 Qf1 Rd1 Qg2 Rh8 Qh1 Rg8 Rg5 Bh5+ Kh6 Rh8 Rg4 Rg8 Nd5 Rh8 Rf3 Rf8 Nf6 Rf7 Ng8 Rf5 Nf6 Re5 Qee4 Rc5 Rfb3 Qg2 Qe6 Qd5 Qe3 Qd6
1N3qQ1/1bNPbrRp/4qQ1B/n1B3B1/qb6/R2K2nN/5P1Q/4kN1r b - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 exf5 b4 cxd5 b3 axb3 Bd7 b4 Be6 b5 Bc8 b4 g5 hxg5 a6 b6 Qd6 b7 Nh6 b5 Qd8 b6 Ng8 Bb5+ axb5 Ke2 Kd7 d4 Kd6 g4 e5 f6 c5 f7 b4 g6 b3 g5 c4 g7 e4 g6 c3 Ra4 b2 Nh3 e3 Nd2 b1Q Ra3 c2 Qg1 Nf6 g8Q Qa1 g7 Be7 f8B Nc6 b8N Bb7 Nf1 Ne4 Qf7 Ng3+ Kd3 e2 g8Q e1Q Bch6 c1B Qh2 Na5 Rg1 Qe6 Qf6 Bd2 Na6 Bb4 Nc7 Qa2 Bg5 Qa1 Bfh6 Qf8 Rg2 Qc1 Be3 Qc6 Beg5 Qa4 Be3 Kd7 d6 Kc6 d7 Ra6 d8B Ra8 Na6 Kb5 d5 Rc8 d6 Rc1 d7 Ra1 Nd2 Rf1 Bc5 Rh1 Qgg7 Rg8 Nf1 Rh8 Qgg5 Rg8 Rg1 Rg7 Qgg6 Rf7 Qg8 Bd5 b7 Be4+ Ke3 Kc4 b8N Bc6+ Qe5 Bb7 Nc7 Nh5 Rg7 Ng3 Ra2 Kb3 Ra3+ Kc2 Kd4 Kd1 Qf6 Ke1 Kd3 Bc8 Qf3 Bb7 Qf5 Bd6 Bdg5 Be7 Qf6
2B5/P2Pq2b/2RN1rN1/b1B1nrq1/Q3knN1/2b3Q1/1Q3KpR/r4NR1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 g4 c5 gxh5 d5 cxd5 Qc7 d4 Qa5 dxc5 Qd8 a4 Kf7 h4 Kf6 f4 e5 d6 b5 c6 g5 c7 g4 d7 e4 h6 g3 h7 b3 a5 b4 a6 e3 h5 e2 h6 b2 a7 g2 Rh2 b3 Be3 Bc5 Nd2 b1Q Ngf3 b2 Nc4 Bd6 Nfd2 Ne7 Bc5 Nbc6 Kf2 Nb8 Qa4 Bb7 c8R Ng6 Rc6 Rg8 h8N Qe7 h7 Qbe4 Nf7 b1R Nh6 Rf8 h8Q+ Qg7 Qg8 Qe6 Qh8 Be5 Qg8 Bc7 Qh8 Ba5 Ng4+ Kf7 f6 Qe7 f5 Nf4 Qh4 Qg5 Qg3 e1B+ Kg1 Kg8 f7+ Kg7 f6+ Kg6 Be2 Kf5 Nf1 Bec3 Kf2 Rd1 Rc1 Ke4 Rb1 Rh8 f8Q Rh6 f7 Rf6 Qg7 Re1 f8N Rc1 Rcb6 Nc6 Ng6 Ne5 Rc6 Raf8 Qh8 R8f7 Qb8 Ba8 Qb2 Rf8 Nfe3 Rh1 Rg1 Rf5 Nf1 R8f6 Ra6 Bd5 Rc6 Bg8 Na3+ Bcb4 Ba6 Bh7 Nc4 Bd2 Bc8 Bdc3 Rh6 Rh3 Qh4 Re3 Qg3 Re1 Rh2 Ra1 Nd6+
rQ4QB/1N4p1/1rrNnQ2/kbqrP2B/N6B/1r2R2K/n2R2P1/5Nb1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 f4 e5 a4 exf4 b4 b5 bxa5 h5 axb5 h4 Qc2 h3 Qh7 Bb4 Nxh3 Be7 Ng1 Bf8 Kf2 Kd7 h4 c5 d4 Kc7 e4 f5 e5 c4 b6+ Kb7 h5 Ka6 h6 f3 Kg3 f2 d6 Qe7 d5 Qf7 b7 Nf6 d7 f4+ Kh3 f3 d6 Nc6 b8Q Nd5 Qf5 Nce7 d8N Bd7 h7 Nc7 Ra3 Qd5 Be2 f1R Re3 f2 Nf3 Nc6 Nfd2 Rd1 Bh5 f1R Nf7 Nb4 Nc3 Na2 Na4 Bb5 d7 c3 d8N c2 Qf6+ Ne6 Nd6 Qc5 Rg1 Rfe1 Nf1 Rd5 Ba3 Rg8 h8B c1R Bb4 Re2 Be1 Rb2 Bh4 Rc3 Ng3 Rbc2 Rd1 Rb3 Nf1 Rcb2 Rd2 Be7 Nc6 Rc8 Nd8 Rc6 N8f7 Qd4 Qg8 Qc5 Nd8 Ka7 a6 Rb1 Nb2 Kb6 a7 Ka5 Na4 Qb6 Nc8 Bc5 Nd6 Bd4 Rf3 Bg1 Re3 Rb8 a8Q+ Qa7 Qb7 Ra8 Qb8 Qc5 Bg3 Bc4 Bf2 Rbb6 Be1 Bb5 Bh4 Rb3 N8b7+
2b1r3/8/Br3Q1N/B1nRn1PR/Nr1R1b1P/3pQq2/K2kr3/QR2n2B b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 g5 fxg5 h5 gxh5 Bg7 e4 Bh6 exf5 Bf8 Kd2 Kf7 c4 a5 Kc2 e5 Kb3 d5 h4 e4 f6 Ke6 h6 Kf5 b6 a4+ Ka2 d3 b4 e3 b5 Kf4 f7 a3 h7 d2 c5 d4 c6 e2 c7 Ke3 b7 e1R b6 d3 Ne2 Bh6 f8Q Ne7 Qf6 Qd6 Nd4 Qc5 Bg2 Qa5 Nc3 Bg7 Na4 Na6 b8R Ng6 b7 Re8 h8R Re2 Rh5 Nc5 Bb2 Re6 Bc3 Ne5 Qc1 Qb5 Ba5 Rb6 Re1 Qe8 Rb1 Qc6 Bh1 Qf3 Rg1 Bf8 Rg4 Bd6 Qb2 Rb4 Qa1 Ra6 Ra8 Rab6 b8Q d1R+ Qb2 Bb7 Qa7 Rde1 Rd8 Ba6 c8B Bb7 Bd7 Bc8 Bb5 Bb8 Rd5 Bc7 Ka1 a2 Ba6 Bb8 Qa3 Kd2 Nf5 Bc7 Rgd4 Bd6 Qb3 Bb8 Kb2 a1N Ka2 Nc2 Qa3 Nc6 Qh7 Rg2 Qhe7 Bf4 Qb2 Rh2 Qh7 Re8 Qhe7 Re2 Qa1 Ne1 Qe4 Ne5 Nh6 Qf2 Qf3 Qe3 Qf2 Qf3 Qe3+
3N1rNB/Q5Bn/q3QbRb/1r2P3/2KP2RQ/rpn2B1r/2k1Nn2/1N6 b - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 gxf5 d5 cxd5 e5 b4 g4 h3 g3 Ba3 Be6 Bc1 axb4 fxe5 Bf7 Na3 Bh5 Nb1 Bg4 hxg4 Ra6 Qb3 Ra3 Qd1 Ra8 e4 Ke7 Ke2 b5 Kd3 h5 a4 c5 a5 b3 g5 c4+ Kc3 b2 d4 b4+ Kc2 g2 a6 b3+ Kc3 h4 g6 h3 g7 h2 a7 Nh6 e6 Kd6 g8N Bg7 f6 Ng4 f7 Qc8 e7 Nf2 e8Q Nd7 Qe1 Bf6 Ne2 g1R Bh6 Qa6 Bg2 Nf8 Bg7 Nh7 Bf3 Rg5 Rg1 h1R Rg4 Rh3 Kb4 c3 f8B+ Be7 Bf6 c2 B8g7 c1B Qf7 Rf8 a8Q Rgh5 Ra5 Bh6 Qa7 Re5 Qh5 Ra8 Qh4 Rf5 Nd2 b1N Rg6 Nc3 Nb1 Bd8 Rb5 Rh5 Kc4 Re5 Ne7 Rf8 Ng8 Rg5 Bh8 Re5 Bfg7+ Bf6 Rg4 Re7 Rg6 Rb7 Rg4 Kc7 d6+ Kc6 d7 Kd6 e5+ Ke6 d8N+ Kf5 Qh1 Rbb8 Kc5 Rb6 Rb4 Rb5+ Kc4 Qa4 Nb7 Rd5 Qa6 Be7 Bg2 Qa1 Ra4 Rb5 Qa5 Qa3 Nd8 Qd6 Qc7 Qg6 Ra7 Qf6 Rb7 Ra3 Rb6 Qd6 Qa7 Beg5 Rb8 Qa6 Rb6 Be7 Rbg6 Beg5 Rg3 Bf6 Qg1 Bd2 Bf3 Bh6 Bg4+ Ke4 Bf3+ Ke3 R3g5 Ra1 Qgg4 Ra2 Na3 Kd2 Nb1+ Kc2 Qe6 Ra3 Rg4
5n2/N1R2K1Q/1b1Nr1n1/pq4PN/3Q4/1r3Nr1/1n1QBbPn/1kBRR3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 f5 f4 b5 axb5 Be6 h3 Bf7 e4 Bh5 exf5 Bg4 hxg4 gxf4 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 Ke6 a5 d4 c5 b3 h5 b6 h4 f6 c4 b7 f3 g5 c3 f7 c2 d6 h3 d5 f2 d7 h2 d6 Qb6 d8N Qb5 d7 Rh3 Nf3 Rg3 Nbd2 Kc3 b4 Ra6+ Nc6 Rb6 d8Q Nd7 Rg1 h1R b8Q Rhh3 Be2 f1N Nc4 Nh2 Qbc7 Kb3 Rb1+ Ka2 Qd4 Bg7 Qd2 Bd4 f8R Bc5 Kf7 e5 Qa7 e4 Nd6 e3 Re1 Ne7 Rh8 Nf8 Rh7 Ra6 Qad7 Neg6 Na7 Rb6 Qf6 Rc6 Qfd4 Bb6 Rg7 Rc8 Qb7 Re8 Qbe4 Re5 Qh4 Re6 Qh7 Qc4 b5 Qd3 Bf1 e2 Rd1 e1B Be2 Bf2 Re1 Bc7 b6 Qb5 b7 Bd8 b8N Bb6 Ng1 Rb3 Nd7 Rhf3+ Nf6 Rg3 Bb2 c1N Nh5 Nd3 Nf3 Re3 Rbd1 Re6 Bc1+ Kb1 Kg8 Nb2 Rc7 Na4 Kg7 Nb2 Kf7
2N1B3/1Nr1q1bn/6pr/2R2B1k/2P2rRr/3QNBn1/2bR2Pb/2R1K2Q b - - 0 1 legal: proof: d4 a5 e4 b5 b4 f5 exf5 c5 dxc5 Nc6 a4 Rb8 axb5 Ra8 b6 Nb8 h4 g6 b5 Ra6 h5 Ra8 h6 Qc7 Bd2 Qf4 Bc3 Qd4 Bb4 Qg7 hxg7 axb4 c4 Kf7 f4 h5 b7 d5 c6 e5 c7 b3 b6 d4 f6 b2 f5 e4 Na3 b1Q Be2 d3 Nf3 h4 Ng5+ Ke8 f7+ Ke7 Nc2 Kf6 Ra2 h3 Ne3 h2 Bf3 Ne7 g8B Bg7 f8N Rh4 Rd2 Nd7 b8Q Qb4 b7 Ra7 Nfe6 Nf8 Bf7 Nh7 Be8 Bd7 c8B Ba4 Qd6 Bc2 b8R Rc7 Rf1 h1R Nf7 Rh6 Qb1 R1h4 Rb5 Qa3 Rc5 Qa7 Nd1 e3 Qd7 e2 Ned8 Qa3 Nd6 Kg5 f6+ Nf5 f7 Rf4 f8R Rfh4 Bd5 Kh5 N8b7 Ng3 Ne3 Qa7 R8f4 Qa3 Rg4 Qa7 Kf2 e1B+ Kf3 Bf2 Rc1 Bg1 Qd8 Qa3 Bf5 Bh2 Kf2 Qa7 Nc8 Qa3 Rdd1 d2 Bf3 Qa7 Qd3 Qa3 Re1 d1R Re2 Re1 Rd2 Rh1 Rb5 Qe7 Rc5 Re1 Nf1 Re4 Ne3 Rf4 Ke1 Rc6 Qf1 Rc7 Qh1 Ba1 Qb3 Bg7 Qd3
1R5Q/2b2np1/Pr2B1B1/b2K3P/NRrR1BnN/r7/q1N2QBn/6kr b - - 0 1 legal: proof: f4 d5 c4 a5 cxd5 e5 fxe5 Ke7 b4 axb4 g4 Ke8 d3 c5 Qc2 h5 gxh5 c4 Bd2 c3 Bc1 Bd7 Qa4 Bb5 Qd1 Bc4 dxc4 Qb6 Bh3 Qc7 Bf1 Qd8 Kf2 Ke7 Ke3 f5 Kd4 b5 h4 c2 a4 b3 e4 f4 h6 b4 h5 b2 h7 b3 e6 Kd6 a5 f3 a6 f2 e7 Qd7 e8R Ra7 Nc3 b1R Qf3 b2 Rh4 Qf5 Na4 Nf6 Bg2 f1N Qf2 Rf7 Nf3 Nbd7 Bf4+ Ne5 Rb8 c1B Ra2 Rg8 h8Q Bd2 Ra3 Qe6 Rd3 Nh2 c5+ Kd7 d6 Kc6 d7 Nfg4 Rdb3 Rh1 R3b4 b1R d8N+ Kd7 c6+ Kd6 c7 Qa2 Rb3 Ba5 c8B Bc7 R3b7 Rb6 Ne6 Be7 Bd7 Bed8 Bc8 Rf6 Bd7 Rb3 Rb4 Ra3 Bc8 Ba5 Bd7 Bdc7 Bc8 Nh6 Rg4 Nf7 Nh4 Ke7 Bd7 Rc8 Kc5 Rg6 Nd4 Rb6 Nc2 Kf6 Rd4 Bd2 Be6 Ba5 Rg3 Neg4 Rb3 Rd1 Kd5 Rh1 Bg3+ Kg5 Bd6 Bd8 e5 Rc4 Rb4 Bc7 Bc8 Ngh6 e6 N6g4 Bg3 Nge5 Bf4+ Kg4 Bf3+ Kh3 e7+ Neg4 e8B Nd6 Bg6 Nf7 Be6 Qb3 Bg5 Qa2 Qe3 Kg3 Qf4+ Kf2 Bg2+ Kg1 Qg3 Rd3 Bf4 Ra3 Qf2+
kBRBQ2n/1Qp1b2n/2b5/bRr5/K1RNR1P1/B6b/4rqPr/4NN2 b - - 0 1 legal: proof: c4 g5 e4 f5 exf5 d5 cxd5 a6 f4 Bd7 f6 g4 b3 Ba4 Bb5+ axb5 bxa4 g3 hxg3 Kd7 d4 Kc8 Kd2 e5 Kc3 h5 Kb3 b6 f5 Kb7 f7 h4 d6 b4 a5 h3 a4 b5 f6 e4 a6+ Ka7 d5 e3 d7 h2 a5 e2 d6 e1B Ra4 Bh6 f8B Bhd2 f7 Ne7 Ba3 Bh6 Nf3 Qe8 d8B Ng6 d7 Qe2 Qd6 Bg5 Nbd2 Qf2 Nf1 Rh5 Qe6 Bed2 Ne1 Nh8 Bg7 Bh4 f8R Be7 Bd4+ Rc5 Rf5 Bc3 Rg1 h1R Rf4 Rh2 Re4 Nc6 Be3 Ne5 Qf6 Rb8 Qb6+ Ka8 a7 Ng4 Rh1 Nf6 Rc4 Rh6 Rh5 Nh7 Qg6 Kb7 a8R Bd2 Re5 Rh2 Qe8 Rc8 Rb8+ Ka7 a6 Bc3 Ree4 Bd2 Rb6 Ka8 a7 Rb8 Ra5 Rb7 Rh6 Rb6 Rf6 Re6 Rf8 Ree5 Qg6 Bc3 Qb6 Bd2 Kb2 b3 Bd4 b4 Rb5 Bd6 Bg5+ Re8 d8N Be7 Ne6 Bc3+ Kb1 b2 Ka2 b1B+ Kb3 Bd3 Ka4 b3 Qd6 b2 Ra5 Kb7 Qe5 Kc8 a8Q+ Kd7 Qb7 b1B Rg4 Bd6 Rh4 Rc6 Rd5 Bf5 Ba7 Bbe4 Rb5 Rc5 Bb8 Ba5 Nd4 Bc6 Qb6 Bh3 Qe2 Re6 Qh5 Re2 Re4 Qe3 g4 Qf2 Rc8 Bf8 Bd8 Be7 Ndc2 Bd5 Qa7 Kc6 Qf7 Bb6 Qa5 Kb7 Nd4 Bc6 Qe8 Bd5 Rb3 Bc6+ Qb5 Ka8 Rb1 Bb7 Rbb4 Ba5 Qb6 Bd5 Rb5 Bc6 Qb7+
b1BR4/B1pQr3/5P1r/nN1QQ2r/kn6/NN6/q1P2bRR/Nrb4K b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 d4 f5 dxe5 b5 e4 Qh4 exf5 Qd8 a4 axb4 axb5 Be7 Qd4 Bd6 Qd1 Bf8 f4 d5 Kf2 Kd7 Kg2 g5 h4 g4 h6 d4 h5 b3 b6 Kc6 f6 b2 e6 d3 f7 Kb5 h7 g3 f5 Qe7 h6 Nf6 b7 Qa3 e7 Be6 e8N Bc5 f8R Nfd7 Ne2 d2 Nd6+ Ka5 Nb5 Ra6 Rh2 Bd4 Rd8 Bc5 Ned4 Bf7 Nb3+ Kb4 Kh1 Ne5 Bh3 Nbc6 b8N Ka4 Nd7 Qa2 N1a3 b1R Qh5 Re8 h8Q Re7 h7 Nd3 Qg7 Be3 h8Q Na5 f6 Nb4 Qe8 Bd5+ Rg2 Bb7 Qd5 Ba8 Qgg5 Rc6 Qge5 Rc4 Qef7 Rh4 Qfe6 Rh6 Qf7 Bg1 Qe8 d1R Be3 Rf1 Ba7 Rf5 Qef7 Rfh5 Qfe6 Rb2 Rf1 Bd4 Na1 Be3 Rff2 Bc1 Rh2 Rb1 Rfg2 Qc4 Nb8 Qb3 Nc6 Qa2 Ncd4 Bb7 Ndb3 Ba8 Rd2 g2+ Kg1 Rg7 Qf7 Rgh7 Bc8 Rg7 Qfd7 Re7 Kf2 g1B+ Kg2 Bf2 Kh1 Bc5 Rg2 Bd4 Qf7 Bf2 Qfd5
Rr1Rk1rq/1q4B1/4Q1r1/4RbQP/p5N1/r1N4b/n2NP2K/1nR3BB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 g5 Kg2 a5 h4 c5 b4 f5 d4 f4 h5 g3 e6 c4 b6 g4 d6 c3 d7+ Ke7 b7 c2 b5 Nh6 d5 Na6 b8B Nb4 b6 Nf5 b7 Na2 Ba7 Nd4 b8R Nb5 Nf3 Na3 Bb2 c1Q Bg1 Qc6 Qb3 Qb7 Nc3 Nb1 Nd2 a4 Rh4 f3+ Kh1 f2 Bg2 Ra6 Ra8 f1B Bf3 g2+ Kh2 Qe8 d8N Rg8 Be4 Rb6 Nf7 Rb5 Ne5 g3+ Kh3 Bg7 Ng4 Bf6 d6+ Kf8 d7 Bd8 Qd5 Rb3 Qg5 Ra3 e7+ Kf7 Bc6 Rg6 Be4 Qh8 Bc6 Ba5 d8Q Bf5 Qd6 Bd8 Be4 Ke8 Qd5 Rc6 Qe6 Rc8 Nb5 Rb8 Bg7 Nbc3 Rc1 Nb1 B1d4 g1R+ Bg2 Bd3 Nc3 Be4 Nh6 Bg6 Re4 Bf5+ Ng4 Rc8 Kh4 Rb8 Bh1 Bh3 Re5 g2 Kg3 Re1 Nc4 g1R+ Kh2 Rd1 Bf2 Rd6 Nd2 Rg3 Qb3 Rg6 Bg1 Rd3 Qe6 Rd6 Bf6 Rg8 Bg7 Ra6 Qc4 Rh6 Qe6 Rg6 exd8R#
5B1R/QQ1R1r2/KP3Qqb/5r2/QPNp1Nqq/B3n2B/k1Nn4/q2b4 b - - 0 1 legal: proof: g4 c5 e4 d5 d4 f5 exf5 h5 gxh5 b5 a4 Be6 axb5 Bc8 c4 cxd4 cxd5 Rh7 Kd2 Rh6 Ke1 Rh8 Kd2 Kf7 Kd3 a5 Kc4 g5 h4 e5 f4 g4 b4 g3 d6 e4 d7 e3 f6 Ke6 f7 a4 b6 g2 Kb5 Kd5 h6 e2 h5 e1Q f5 a3 h7 a2 h6 Qee8 f6 Ne7 Qa4 Qc7 Nf3 g1Q Nfd2 Ng6 Nc4 Ne5 Nba3 Ra7 Nc2 Qg4 Bh3 Nf3 Ba3 Nc6 d8N Qh2 Ne6 Nd2 Rae1 Rg8 h8Q a1Q h7 Rg5 Qg7 Rf5 h8Q Qhg3 Qh5 Q3h4 Qhh7 Rb7 Ka6 Ne7 Qgh8 Bg7 f8Q Bh6 Qh8g7 Qeg6 f7 Bd7 Qb8 Bc6 f8B Be8 Qb3 Ba4 Qa7 Rd7 Qa2 Rb7 Reg1 Bb3 Qf6 Ba4 Ne1 Bd1 Nc2 Qg4g5 Re1 Qgg4 Qb3 Bg7 Bf1 Qf2 Qa4 Rd7 Rh6 Qfh4 Bh3 Rc7 Na5 Rb7 Nc6 Kc4 Nf4 Nd5 Re7 Ne3 Na5+ Kc3 Nc4 Rd7 Qac6 Kb3 Qa4+ Ka2 Rh5 Bh6 Qhf7 Bg7 Rh8 Bh6 Qd5 Rc7 Qdb7 Rd7 Re4 Rh7 Re7 Rf7 Rd7
2qb1Bn1/nb1P4/6nB/1R4rN/1Bn4R/1Q1PNBpk/8/qrQ1QKR1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 h4 Kd7 f4 c5 d3 e5 b6 g5 f6 b3 h6 e4 f5 e3 b7 e2 h7 b2 h5 g4 h6 c4 f7 g3 f6 c3 d6 Ke6 d7 Kf5 Nh3 Kg4 Qb3 c2 Nd2 b1Q Nc4 Kh4 Nf4+ Kg4 Bg2 Ra5 Nh5 Be7 f8B Nc6 b8R Na7 f7 Rg5 Rb5 Bb7 Bc6 Bf6 Bb4 Qc8 f8B Bd8 Rg1 Kh3 Bf3 Qb2 Ne3 Qd4 Ra4 Qa1 Kd2 e1N Ke2 Ng2 Kf1 Qa2 Bcd2 Nf4 Bc1 Ng6 Bcd2 N8e7 Bc1 Rg8 h8Q Qa1 Qhb2 Rh8 Q2c3 Ng8 Qe1 Rh7 Bcd2 Re7 h7 c1N h8Q Ree5 Qc2 Nb3 Qcc1 Na5 Qh7 Re6 Qf7 Rb6 Qb3 Nc4 Bh6 Rc6 Bbf8 Ra6 Rab4 Ra2 Ra4 Rb2 Bdb4 Rb1 Ra6 Qd4 Rf6 Qe5 Rf4 Qa1 Rh4+
1RNk1q2/1N1bp2n/KB1P2rR/bRr2Qq1/Q5bR/B2P4/7N/B1r4q b - - 0 1 illegal: No possible last move
3Q2Q1/2rn3b/2BR4/1N5k/B2K1br1/rpQP2P1/2qrrNR1/Bq2R2Q b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 exf5 a5 c4 axb4 cxd5 Nd7 h4 Nc5 hxg5 Ne4 Bg2 Ngf6 Bf1 Ng3 fxg3 Ng8 Ke2 Kf7 Ke3 b5 a4 h5 d6 c5 a5 e5 d7 c4 f6 Kg6 f7 c3 a6 e4 a7 h4 d3 h3 Qe1 b3 Ra2 b2 Kd4 b4 Bg2 c2 Qc3 h2 Na3 b1Q Nb5 e3 Nh3 e2 Re1 h1R Bc6 Bh6 f8Q Qc7 d8R Nf6 Bb2 c1R Ba1 Nd7 Nf2 Rg8 Qf3 Rh4 Qh1 b3 Rb2 Rh2 Ra2 Kg7 g6 Bf4 Rd2 Kh6 g7 Kg6 g5 Kh5 Rb2 Rc2 g6 Rd2 Rc2 Rh4 Ra2 Rh8 g8Q Rh7 g7 Bb7 Rc1 e1R Qf8 Ree2 g8Q Rg7 Re1 Rg4 Rc2 Rc8 a8B Rh2 Bf3 Be4 Bc6 Bh7 Qd6 Ra8 Qf6 Ra3 Rb2 Nc5 Rd6 Nd7 Qfd8 Rh3 Na7 Rh2 Ba4 Qc8 Nb5 Re7 Qb4 Qcc2 Qc3 Rg7 Bc6 Re7 Nh3 Rhe2 Nf2+ Rh4 Qgf8 Nb6 Na7 Qcc1 Nc8 R2e3 Rf1 Rd1 Qg8 Rc7 Ne4 Nd7 Rg2 Re2 Na7 Rdd2 Nf2 Qd1 Nb5 Qdc2 Qg1 Rg4 Re1 Be4 Qf1 Bh7 Qh1+
3qN1n1/B1rrQ2Q/Nn1Q1nK1/1R1p3n/kN1b1P2/P2Q1B2/1nB1q3/R7 b - - 0 1 legal: proof: b4 c5 d4 g5 dxc5 a5 e3 f5 f3 f4 exf4 axb4 fxg5 b6 g4 Bh6 h4 Bb7 h5 Be4 f4 Bg6 hxg6 Bf8 Ke2 e5 Kf3 d5 c4 Kd7 a3 Kc6 g7 h5 g6 h4 g5 b3 Kg4 b5 Kf5 e4 Nc3 b4 Be3 b2 Nh3 b1Q Na4 b3 Bd3 b2 Nf2 Qa2 Bb1 h3 Qd3 Nf6 g8Q h2 g7 Na6 g6 Qb6 Qh7 Qb8 g8Q Nc7 g7 Nce8 Qf7 Ra7 g8N Qd8 Qe7 Bg7 Kg6 Rc7 Rf1 h1N Bd4 Ng4 Nf6 e3 Rd1 e2 Qd6+ Kb7 c6+ Ka6 Nc5+ Ka5 Na6 e1N Ba7 Ka4 c5 Nh6 Qe7 Rd7 c7 Ng8 c8Q Ng3 c6 Nh5 c7 Qc4 Qb7 Qc2 c8B Qe2 Qh6 Rh7 Qb6 Bh8 Qbd6 Rc7 Bg4 Rd7 N6e4 Bd4 Bf3 Nef6 Rc1 Rf7 Rc5 Rh7 Rb5 Rf7 Ba2 b1N Qh7 Nd2 Bb1 Rc7 Ng5 Rd7 Ne6 Nc4 Ng7 Nb6 Ne8 Rc7 Ng4 Rd7 Ne3 Rc7 Nc2 Rd7 Qd2 Nd3 Ncb4 Nb2 Qd3 Rc7 Qf8 Rfd7 Qfg7 Ne4 Qge7 Nef6 Bc2+
r3b3/1b1Nk2N/2RB2B1/qb1R2K1/bn5n/R2Q1q1P/pR1P3q/1N1Q1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 g4 Ra6 Bg7 Ra1 Bh6 Nh3 a5 Ra3 Bg5 hxg5 h5 Rc3 h4 Ng1 h3 Ra3 h2 Ra1 Rh3 gxh3 Ra6 Ra2 Rh6 Ra1 Rh8 Kf2 c5 b4 f5 e4 c4 b6 a4 g6 g3+ Kf3 g2 e5 a3 e6 c3 b7 c2 g7 Ke7 b5 Nh6 g8B Na6 b8N Bb7 b6 Nb4 Bh7 Bc6 b7 Qa5 Bg6 Be8 Bb2 c1Q Be5 Qc6 Nd7 Rf8 b8Q a2 Qb5 Rg8 Qd3 Rh8 Na3 Qc3 Rc1 Qb3 Rc6 Qc3 Ne2 g1Q Nb1 Rf8 Nd4 Qg3+ Ke2 f3+ Ke3 f2+ Nf3 f4+ Ke4 Qca3 Ng5 f3 Nh7 Nf5 Bb8 Qg2 Kf4 Rh8 Rg1 h1B Be5 Qh2+ Kg5 Nh4 Rg3 Bf7 Bf4 Ra8 Be5 Be8 d6+ Kd8 Nb8 Qb3 d7 Ke7 d8R Qbd5 Nd7 Qe4 Be2 f1B Rb8 Bfg2 Bf1 f2 Rb5 Qe2 Rd5 Be4 Re3 Qf3 Bd6+ Kd8 Qa6 Bc2 Ra3 Ba4 Qd3 Bf7 Bg2 f1B e7+ Ke8 Qe4 Be2 Bf1 Beb5 Qd3 Bg2 Be4 Bh5 Bf5 Kf7 e8R Bg6 Rb8 Bh1 Be5 Ke7 Be4 Be8 Bg6 Bg2 Bd6+ Ke6 Nc3 Qe3+ Kg4 Nc2 Rdc5 Ba6 Rb2 B6b5 Nb1 Nb4 Rb6 Bb7 Rbc6 Qe4+ Kg5 Qf3 Bf4+ Ke7 Rd5 Qd8 Be5 Qa5 Bd6+
K1Q3n1/7N/N2B1Qnk/4B1Q1/bqRqr1Pq/1rB2B1R/2rq1P1p/1N6 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 f5 e4 d5 exf5 b5 cxd5 Bg7 axb5 a4 Rh3 Bf6 Rh1 Bc3 Qe2 Bd4 Qg4 Bb6 Qd1 Ba5 bxa5 Kf8 Qg4 Kf7 Qd1 Ke8 Ke2 Kf7 Ke3 Kg7 Ke4 h5 g4 e5 d4 c5 a6 a3 a7 a2 d6 c4 Kd5 h3 b6 h2 d7 c3 f6+ Kh7 b7 e4 f7 e3 f8B c2 Bd2 c1Q Qf3 h4 Bd6 e2 Bg2 e1R Qf5+ Kg7 Bc3 h3 Nf3 Na6 Kc6 Qa3 b8N Nc5 d5+ Re5 Ng5 Qb4 Na6 Rb8 a8Q Ne6 Nh7 Nf4 Bf3 Ng6 Rc1 Qda5 d8Q h1Q Qdf6+ Kh6 Qb7 Be6 Qc8 Re4 Bce5 Qd2 Rc4 Qab4 Bc3 Bf7 Bde5 Qh2 d6 Be8+ d7 Qg3 Kc7 h2 d8B Ba4 Be7 Qh4 B7d6 Rb5 Qb7 Rc5+ Kb8 Rc7 Ka8 Rc6 Na3 Rc7 Re1 a1Q Re3 Qab2 Nb1 Qd4 Qb8 Qbd2 Qbc8 Rc6 Ng5 Rh7 Rd3 Rb7 Re3 Qbc5 Nh7 Rb3 Bd1 Qb4 Rh3 Rc5 Bf3 Qb6 Rb4 Qc2 Bb2 Qcd2 Ba1 Rcc3 Rc4 Rc2 Bc3 Qb4 Q5g5+
1r2k1q1/R7/Rnrq3r/1nn1RnN1/PQ1B1Q2/Q3QP2/bN1N2p1/3K1B2 b - - 0 1 legal: proof: c4 c5 e4 d5 cxd5 f5 exf5 a5 d4 h5 g4 e6 gxh5 c4 b4 Bc5 dxc5 axb4 a4 g5 h4 b5 c6 e5 f3 b3 c7 c3 h6 b4 h7 b2 h5 g4 f6 e4 h6 e3 d6 c2 f7+ Kf8 d7 b3 Ne2 g3 Qd4 g2 Qb4+ Qe7 d8N Bg4 c8R Be6 Nec3 e2 Nd2 b1Q Nd1 Ra6 Bb2 Nd7 Ra8 c1R Rh4 Rd6 Ra6 Qg6 Bc3 b2 Bd4 b1N Rh2 Rc5 Nb2 Qgg5 Ra3 Bc4 Re3 Ba2 Re5 Nb6 Rh3 Qe6 Rg3 Qgf6 Rg7 Nc3 Qa3 Ke7 Qb4 Rcc6 Qa3 Kd7 f8Q+ Qfe7 Rf7 Qg4 Rg7 Rf6 Ne6 Nb5 Rf7 Qg6 Rg7 Qgf7 Qe3 Qd8 Qb4 Ne7 Qea3 Qfe8 Rf7 Rf8 h8Q Qc7 Qh7 Qd6 Qf5 Qa8 h7 Rh6 Qf4 Rfc8 Kf2 e1N Ke2 Nd3 Kd1 Nc5 Rg7 R8c7 Rf7 Qg8 Rg7 Rb7 Qfe3 Rh4 h8Q Ke8 Qhh6 Nf5 Qhf4 Rb8 Rga7 Rh6 Ng5+
Nq1b1b1r/7Q/1n6/2k2p2/R4Br1/Q2RRP1K/PbN1NBR1/1b2Qqq1 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 f5 g4 b5 c4 Na6 cxb5 Nc5 g5 Ne4 Bh3 Nef6 Bg4 hxg4 gxf6 Rh6 Qd3 Rh4 Qd1 Rh8 Kf1 g5 Kg2 c5 h4 d5 e4 Kd7 e6+ Kd6 f3 g3 f7 c4 e7 g4 e8R d4 e5+ Kd5 e6 d3 e7 d2 b6 c3 h5 c2 b7 Qb6 b8B Qd8 h6 Ra6 h7 Bb7 Qe1 d1Q Rh2 Bg7 f8Q Rg6 a6 Kc5 a7 Nf6 a8N Nd5 Bbf4 Qb8 Na3 Nb6 Ne2 Be4 Rb1 Bh6 Rb3 Rg7 Bcd2 c1B Nc2 Bb2 Rd3 Rgg8 Red8 Bg5 e8R+ Be7 Qf7 Bf8 R8d4 Rg7 Bde3 Rgg8 Kg1 g2 Qa7 Qa1 Kf2 g1B+ Kg2 g3 Kh3 g2 Bf2 Rg4 Qa3+ Kc6 Qd2 Qf1 Ra4 Kb5 Qe1 Kc6 Bd4 Bf2 Re5 g1Q+ Rg2 Bh4 Bf2 Bd8 Re7 Rhg8 h8Q Kb5 Qh7 Rh8 Rd6 Bd3 Re3 Be4 Na1 Bb1 Rdd3 Kc6 Nc2 Kb5 Qb3+ Kc5 Qa3+
2R1rQ2/q1r1b3/BQn3r1/Pp6/r1kNP3/1qRNB3/2bKQq1N/3Q2R1 b - - 0 1 illegal: No possible last move
1Q2Qq2/r4bq1/1n2B1Pb/2k3b1/Q2pR1rB/4NR1B/1P2Nq1b/K1N3B1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 gxh5 g5 e4 g4 exf5 Nc6 Ke2 Ne5 Kd2 Nf7 Ke1 Ng5 fxg5 Qc7 Nc3 Qb6 Nb1 Qd8 Kd2 a5 c4 d5 Kc2 Kd7 h4 Kd6 h6 e5 b6 g3 b7 e4 b8Q+ Qc7 h5 g2 f6 e3 f7 a4 h7 a3 c5+ Kc6 h6 a2 g6 e2 Nc3 e1B Nge2 g1B Bh3 Qg3 Bg5 Bef2 Bh4 Ra6 Nc1 Be6 N3e2 Bh2 Rf1 Be3 Rf3 d3+ Kb3 Be7 f8N d2 Nd7 Qf2 Nf6 Ra7 Ng4 Nf6 Kc2 Bef4 Ne3 Nd7 Kb3 Rc8 h8Q Beg5 h7 Bf7 Qe8 Rcc7 Rb1 a1Q h8B Qa3+ Kc2 Bh6 Bd4 Bfg5 Ra1 Ra4 Kb1 Rca7 Ra2 Rc4 Ka1 Qc3 Qdb3 d1Q Ra4 Qdf1 Qd1 Qb4 Qb3 Qb7 Qc2 Kb5 c6 Nb6 Qd1 Qd7 c7 Kc6 Bc5 Rg4 c8B Kb5 Qb3+ Kc6 Qa2 Kb5 Re4 d4 Bd6 Kc6 Bc7 Kc5 Qa4 Qe7 Be6 Qf8 Bcg3 Q1g2 Bf4 Qgg3 Bc7 Qf4 Be5 Qf6 Bf4 Q6g7 Bfg3 Qg1 Bf2 Qe1 Bg1 Qd2 Ng3 Qf2 Nge2
1q1q1b2/q1Q2k1b/Br1P1Nn1/3R1P2/R1N5/2pBKbR1/2B1BQ2/qQ2r3 b - - 0 1 legal: proof: d4 b5 h4 d5 a4 e5 axb5 g5 dxe5 d4 hxg5 Qd7 c4 Qd8 e4 Ke7 e6 f6 e5 Na6 Bf4 Nb4 Bh2 Ke8 e7 Kd7 Bg3 Ke6 Bf4 Nd5 cxd5+ Kf5 e6 Ke4 Bd2 Ke5 Bc1 Kd6 Bf4+ Kc5 Be5 fxe5 Rh6 Kd6 Rh5 Bd7 Rh1 Bc8 Kd2 c5 e8B Ke7 f4 a5 b4 h5 g4 c4 f5 d3 b6 a4 b5 h4 g6 a3 g5 h3 b7 h2 b8Q a2 b6 e4 b7 c3+ Ke3 d2 g7 Qc7 g6 Qa5 d6+ Kf6 e7 Ra7 Nh3 Bd7 Qf3 d1Q Ba6 Bc6 Qf2 Rh5 Qc7 Qg1 b8Q Rb7 Nf4 Bd5 Ba4 Rb6 e8B Ne7 Beb5 Bg8 Na3 Bh7 g8R Qb4 g7 Kf7 Rd1 a1Q Nc4 Qg5 Rhf1 h1B Rd5 Bf3 Bc2 Rh1 Rg1 Qb3 Rg4 Rf1 Bd3 Re1+ Be2 Qh4 Nh5 Qaa3 Nf6 Qg5+ Kd4 e3 Ba4 Qb5 Bc2 Qe8 Bed3 e2 Rg3 Qh4+ Ke3 Qaa4 Qbb7 Qb8 Rg4 Qd7 Rf4 Ng6 Rg4 Rc6 Qb1 Rb6 Rg3 Rf1 Rh8 e1Q+ Be2 Qd1 Bcd3 Re1 g8B+ Kg7 Bf7 Q1a4 Be8 Qa1 Bc2 Qf7 Bea4 Qd7 Bd3 Kf7 Bac2 Qe7+ Ne4 Qd7 Rg8 Qhd8 Nf6 Bg7 Re8 Bf8 Ree5 Q7e7 Ra5 Qed7 Ra4 Q7e7 Qb7 Qec7 Rd5 Qcd7 Qc8 Qda7 Qc7+
KNq5/1Rq1QP1Q/N2N4/kr3nB1/3rP2p/RB1Qqr1n/6Bq/2Q3b1 b - - 0 1 legal: proof: c4 b5 e4 e5 h4 g5 a4 gxh4 axb5 f5 d3 Bb7 exf5 e4 Qc2 e3 Qd1 Be4 dxe4 d5 cxd5 Ke7 Bd2 Kd7 Bc1 Ke8 Ke2 Kd7 Kd3 h5 Kc4 c5 f4 Kc7 b4 Kb6 g4 a5 f6 e2 g5 e1R g6 h3 f5 h4 d6 h2 Kd5 c4 g7 c3 d7 c2 f7 a4 f6 a3 Bg5 c1Q Nc3 a2 Na4+ Ka7 b6+ Kb7 b5 Qa3 Ne2 Bc5 f8Q Ra5 Nec3 Ra6 Qe7 Bg1 Bg2 Ra5 Nc5+ Ka8 b7+ Ka7 Qc1 Kb6 Na6 Nh6 g8B Qc7 d8Q Nd7 b8N Ra4 Be6 Rf8 f7 Nc5 Bd7 Ka5 b6 Rf1 b7 Rf3 Nb5 Nf5 Nd6 Ne6 Bc6 Rb4 Ba4 Qe3 Rb1 a1Q Rb3 Qh8 Ra3 Qcb6 Qdd7 Qa7 Kc6 Nf4 Kc7 Nh3 Kc6 Ng7 Qf5+ Rb5 Qh7 Rd8 Kc7 Bf2 Rd1 h1Q Rdd3 Bg3 Rdb3 Bh2 Nd7 Bg1 Nc8 Re5 Rb4 Qab6+ Kb8 Rg8 Ka8 Rd8 b8Q Nf5 Qbd6 Qh2 Ndb8 Qc7 Rb7 Rb5 Qd3 Rd4 Nd6 Qhc8 Bb3+
N1qQ4/PNnRq1nK/3r4/7k/2pq1B2/R2n1Q2/2QPb2n/1NBNB2r b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 g3 a3 bxa3 Qd7 a4 Qd6 a5 Qd8 f4 h5 f6 e6 f5 Ba3 Be2 Bd6 Bg4 Bf4 gxf4 hxg4 Kf2 Kf7 Kg3 g5 a4 c5 h4 b5 a6 e5 d6 c4 h5 e4 a5 b4 d7 b3 h6 e3 a7 e2 h7 e1N a6 b2 Ne2 Nc2 Ra3 Qe7 d8N+ Ke8 Nec3 Nb4 Qc2 Nd3 Nb7 Kf7 Nd1 Nh6 Rh2 Rd8 h8Q Rd6 Qd8 Bd7 Rh1 Bc6 Re1 Bf3 Re5 Be2 Rd5 Rc6 Rd7 Rd6 Kh2 g3+ Kh3 g4+ Kh4 g2 Kh5 g1Q Kg5 Nc6 Kh5 Rb8 a8N Qd4 a7 g3+ Kg5 Ng4 Kh5 Nh2+ Kh6 g2 Kh7 g1N Qc7 Kf8+ f7 Nd8 Qc6 Ne6 Qf3 Qg5 Rd8+ Ke7 f8B+ Kf7 f6 Nh3 f5 Nhf4 Be7 Nd5 Rd7 Re8 Bd8+ Re7 Bb6 Ng7 Bc5 Nc7 Bb6 Qdf4 Bf2 Qd4 Bg3 Qge3 Be1 Qe6 Rd8 Qc8 Rd7 Kf8 f7 Re4 Qe3 Rf4 Qh3 Rf1 Qf3 Rg1 Rd8+ Ke7 f8B+ Kf6 Rd7 Kg5 f6 Rf1 f7 Rh1 Qf6+ Kh5 Qd8 Nge8 Bh6 Ng7 Nbc3 b1Q f8Q Qb5 Nb1 Qbe5 Bf4 Qe7 Qf6 Rd5 Qc6 Rd6 Qf3+
r6R/p4K1R/1r2PN2/N1b2bN1/BPQ3Q1/4B2Q/RnRq4/q2r1brk b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kd6 Ke4 g5 h4 c5 d4 g4 b4 f6 b6 c4 b7 c3 h6 f3 h5 f2 h7 c2 h6 g3 Nh3 g2 Nc3 g1Q Ra2 Qg3 Be3 c1R Ng5 Na6 b8Q+ Nc7 Rh2 Qh3 Kf4 f5 Nce4+ Ke7 Ke5 f4 Rg2 f3 Nf6 Ne8 Qb3 Qg4 Qc4 Rd1 Rh2 Qg1 Rc2 Qd7 d6+ Kd8 d5 Ne7 Bg2 f1B Ra2 Rg8 h8R f2 h7 Rg6 Be4 Rh6 Bc2 Rg6 Rg2 Rh6 Ba4 Ng6+ Ke4 Nf4 Ke5 Nh3 Rh2 Qb7 d7 Ke7 d8N Qd7 Nb7 Nd6 Na5 Qd8 Qg4 Bf5 Qc7+ Qd7 Qcc4 Qd8 Nge4 Kf7 Ng5+ Kg6 Qg3 Be7 Qcg4 Qd7 Rc8 Bf8 h8R Qd8 Rcc2 Qh1 Bd2 Qg1 e4 Nc4+ Kd4 Qd6 e5 Nb2 Rh7 Qd8 d6 Be7 d7 Bc5+ Kd5 Qh1+ Qe4 Qg1 Qc4 Qh1+ Nfe4 Kh5 Rh8 Qf3 Rh1 Qc3 Rh2 Qf6 d8Q Qe3 Qd7 Qa6 Nh7 Rb6 Neg5 Qe2 Qg7 Qe3 e6 Qd3+ Ke5 Qe2+ Be3 Qd2 Nb3 Qa5 Kf6 Qa6 Kf7 Qa5 Bf4 Qa6 Qgd3 Kg4 Be3+ Kg3 Nf6 Qa5 Rh1 Qa6 Na5 Kg2 Rg1+ Kh2 Rg4 Kh1 Rgh4 Be2 Qg8 f1R R4h7 Rg1 Qdd4 Bf1 Qg4 Qc1 Qb8 Qa1 Qd6 Qc8 Qdf4 Qd8 Qfg3 Qd2 Q3xh3+
5QBb/R2R2bb/1q2Nr2/b1pK1BP1/1R1Q1b2/1n1Br2B/P4N1Q/b5k1 b - - 0 1 illegal: No possible last move
RR3Q2/b3P2k/NQ3b2/1Pr3BK/bQb3rN/1b1nBNp1/1bR3N1/5q2 b - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 h5 axb5 e6 g4 Bd6 gxh5 Be7 d6 Bf8 d7+ Ke7 e4 Kd6 f4 Qe8 d4 Nh6 f5 Ng8 d5 Kc5 d6 Na6 Bc4 Qd8 Bd5 exd5 e5 Kb4 Qc2 Nc5 Qd1 Ne6 fxe6 Kc5 Kf2 f5 Kf3 a5 h4 g5 e7 d4 e8R Kd5 b4 c5 h6 c4 h5 c3 b6 c2 e6 Ke5 b5 Kf6 h7 Kg7 b7 a4 b8Q a3 Qe1 g4+ Kf4 a2 Kg3 d3 Nh3 d2 Nf4 d1B Be3 c1B Qb4 Ra4 Rh2 Qf6 d8B Bb2 d7 Ne7 Qb6 Nc6 Nd2 Bc5 Nf3 Ne5 Ng2 Nd3 h6+ Kg6 Be7 Qf7 Kh4 g3 d8N f4 Rf8 Rg8 h8N+ Kh7 Bf6 Rg5 e7 Be6 Ng6 Beb3 Nc6 Bcd4 Rb8 Rc5 Bg5 Qf8 Rb1 a1B Kh5 Bf6 Rc1 Bbd4 Ra8 Bab2 Nb8 Bdc2 Na6 Qf7 Ne5 f3 Rhh1 f2 Nf3 Qf8 N6h4 Bd1 Rc2 f1B Bd2 Bg1 Be3 Bf2 Q4a5 Rg4 Qb4 Nc1 Rb8 Bfc4 Rf1 Bg1 Rff2 Ba4 Rfd2 Bf2 Rdd8 Nd3 Ra8 Bab3 Rdb8 Ba4 Rc1 Bdb3 Rc2 Bg1 Q6a5 Bh8 Nfe1 Qf1 Bf2 Bhf6 Nef3 Rc8 Qc7 Kh8 h7 Bfd4 Qca5 Ba7 Bc5 Bgd4 Qb6 Bdc3 Bf2 Kg7 Bfe3 Rc5 Qd8 Bf6 h8Q+ Kf7 Qhe8+ Kg7 Qb6 Kh7 Qf8
1bR3qN/b2b1nQQ/N1b3B1/n1nQB1P1/4n1N1/7R/B1p1KBrP/6k1 b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 b5 a4 e5 axb5 exf4 g3 Ba6 Nc3 Bb7 Nb1 Bc8 Nh3 g5 Ng1 h4 gxh4 a6 Ra2 g4 Ra3 Be7 Ra1 Bf8 Qa4 a5 Qc2 Rh5 Qd1 Rg5 hxg5 Ra6 Ra3 Rh6 Ra1 Rh8 b4 Kd7 d4 Kd6 e4 c5 b6 f5 b7 c4 b5 g3 b6 c3 Nd2 a4 Bc4 g2 Ba2 a3 Nh3 g1B Qh5 f3 Qh7 f2+ Ke2 f1N Nf3 f4 Ne5 Bf2 Be3 Nd2 Ng6 Nc6 b8N Na5 b7 Bd7 Rhc1 Nh6 Na6 Nf7 Qg7 Rh4 Nh8 Bg1 Bf2 Rg4 Rab1 Qa8 Rb3 Rg2 Rc2 Be7 Qh7 Bd8 b8B+ Bc7 Qg7 Qb7 Qh7 Qc8 Qg7 Qg8 e5+ Ke7 d6+ Ke6 d5+ Kf5 e6 Kg4 e7 Ne4 e8B f3+ Kf1 Bc6 d7 Bg3 d8Q Be5 Bfa7 f2 d6 Kf3 d7 Bf4 Qc7 Bg3 Bb1 a2 d8Q a1N Qd5 Be5 Ra3 N1b3 Ba2 Nc5 Qcd7 Bf4 Be5 Bg3 Rb2 Bf4 Rb8 Ke3 Rc8 Kf3 Bf6 Bb8 Be5 Ke3 Nf4 Kf3 Nd3 c2 Qb7 Kg4 Ke2 Kh3 Ke3 f1B+ Nf2+ Kh4 Kf3 Bfb5 Ng4 Kh3 Qe7 Bd7 Bb6 Bf2 Ba7 Bbc6 Ke2+ Rg3 Qh7+ Kg2 Qf8 Kg1 Qfg7 Rg2 Rh3 Nd8 Bh5 Nf7 Bg6 Nd3 Bc5 Be3+ Kf3 Bd4 Bb4 Be3 Be1 Bea7 Bh4 Ndc5 Ke3 Rg3+ Ke2 Rg2+ Bf2+
1r2N1rB/1R3P1k/2B1N2r/1R2Bn2/K3P1Qb/3q2QQ/p7/b1bNrbQ1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 gxh5 Kf7 a4 Ke8 axb5 Be6 Nc3 Bd7 Nb1 Bc8 d3 fxe4 Bf4 e5 Bc1 e3 Ke2 Qe7 Ke1 e2 Kd2 Qd8 Nh3 e4 Ng1 e3+ Kc2 Nd7 Nd2 Nc5 Nb1 Ne4 dxe4 Bb4 Qe1 Bd6 Qd1 Bf8 Kb3 Kf7 h4 e1B f4 a5 b6 c5 f5 g5 h6 g4 h7 Kg7 d6 g3 d7 e2 h5 g2 f6+ Kf7 h6 Kg6 b7 c4+ Ka4 c3 b8N c2 b4 Ra7 b5 Qb6 d8Q Rg7 f7 Bc3 Na6 e1R Bf4 c1B Qh4 Qd6 b6 Qe6 b7 Nf6 b8Q Ng8 Nh3 g1R Nc7 Qc6+ Bb5 Qd6 Ne8 Rg3 Ng5 Qd3 Ne6 Ba6 Bc6 Be7 Be5 Rh3 Qhg4+ Beg5 Rh2 Ne7 Rb2 Rgg8 Rb7 Nf5 Rb5 B3b2 Nc3 Rh2 Rb1 Ba1 Rb7 Rhh1 R1b5 Rh5 Kb3 a4+ Kb4 a3 Ka4 a2 Qg1 Rf8 Qdg4 Rhg8 h8B Kh7 Nd1 Bd8 Qd6 Bh4 Qa3 Qd8 Qag3 Qd3 N8c7 Rc8 Ne8 Rb8 Ng5+ Kg6 h7 Rh6 Ne6+ Bhg5 Nf2 Qb1 Bhf6 Rh5 Rd5 Bf1 h8Q Qd3 Rdb5 Rh4 Nd1 Rh1 Qhh3 Rh2 Qhg2 Kh7 Bh8 Rh6 Q2h2 Bh4 Qhh3
3kr2B/1R1Np3/B4B1N/1Q6/P1PQ1N1b/1b1Q3b/rn1R1n2/nQb1Kn2 b - - 0 1 legal: proof: e4 c5 g4 a5 b4 axb4 d3 f5 exf5 c4 dxc4 Ra6 Ne2 Ra7 Ng1 Ra8 c3 h5 gxh5 b5 Bh3 b3 Bg2 b2 Bh3 b4 Bf1 b3 Bg2 Qb6 Bf1 Qb4 cxb4 Ra7 Qd6 Ra4 Qd1 Ra8 a4 d5 h4 g5 f4 d4 b5 g4 b6 d3 f6 g3 b7 g2 f7+ Kd7 h6 Kc7 h5 Nf6 f5 Be6 h7 Bg7 f8Q Ne4 h6 Kd7 f6 Bg8 f7 Na6 b8Q Nac5 Nf3 g1B Nd4 Be3 Qb5+ Kc7 Nf5 Re8 Bg2 Bf6 Rh2 Kd8 Nc3 b1N Nd5 b2 Nf4 Nbd2 Rb1 Nf2 Bb7 Bh4 Ba6 Nf1 Qg7 Nb3 f8N Bf7 Qc3 Na1 Nd7 Be6 Qdc2 Rhg8 h8B Rg2 h7 d2+ Ke2 d1N Q3d3 Bg3 Nh6 Bh4 Ke1 Bf5 Bd2 Bh3 Bdc3 Bc1 Bcf6 Nb3 Ra1 b1B Qb2 Bc2 Qb1 Nb2 Ra3 Na1 Rb3 Rg3 Rb4 Bb3 Rg2 Nh1 Rd2 Nf2 Qh5 Bg5 Rb7 Bh4 Qb5 Rgg8 Bc3 Rgf8 Bhf6 Rg8 h8Q Rg2 Qg7 Rh2 Qg4 Rg2 Bh8 Rh2 Bcf6 Nbd1 Re2 Nh1+ Qgg3 Rf2 Qd4 Rh2 Re5 Ra2 Re2 Nb2 Rd2 Nf2 Qgd3
r6B/6q1/3N2Rr/R4Prr/Q3k1r1/N4NRB/RqqpPKb1/1Q3nQ1 b - - 0 1 legal: proof: d4 b5 h4 e5 f4 g5 a4 c5 axb5 f5 g3 g4 Qd2 Be7 Qd1 Bg5 hxg5 cxd4 Rh2 Na6 Rh5 Nb4 Rh1 Nd5 fxe5 f4 Bh3 f3 Bf1 Nf4 gxf4 Ke7 Qd3 Kf8 Qd1 Ke8 c4 Ke7 b4 Ke6 b6 Kf5 b7 a5 b8Q d5 g6 h5 b5 h4 e6 a4 c5 g3 b6 h3 e7 a3 e8Q a2 g7 f2+ Kd2 h2 c6 g2 c7 d3 Ke3 d4+ Kf3 d2 b7 d3 Bb2 Ne7 g8R Rh5 Bg7 Qd4 Na3 Nd5 Bh8 Qb2 Rg3 Ne3 Qea4 Rg5 Qb1 d1Q Qba7 Qdc2 b8R d2 Rb6 Bb7+ Rc6 Rh5 c8N Qg7 Nb6 Qb2 Nh3 g1R Ng5 Rh6 Bg2 Nf1 Nbc4 Rh5 Ne6 Rg5 Bh3+ Rg4 Qb6 Rg2 Rg1 h1R Ng5 Rgh2 Bg2 Rh6 Bh3 Rh5 Kg2 Rh6 Nf3 Ke4 f5 Qg7 Rc5 Rg5 Bg4 R1h5 Bh3 Rg4 Ra5 Rhg5 Qd1 Rhh5 Rc1 a1Q Qb1 Qab2 Qe1 Nh2 Qd1 f1R Qe1 Qd3 Rc2 Qdc3 Qf2 Re1 Qc5 Nf1 Kf2 Rh6 Qa2 Ra1 Qb1 Rhh5 Qb6 Ra6 Qa7 Rah6 Nd4 Ba6 Re5+ Kf4 Nab5 Qe7 Rd3 Qg7 Qb4 Rgh4 Qd6 Rg3 Qg6 Bb7 Qa8 Ra6 Nba3 Qa1 Ra2 Qc2 Qae8 Bh1 Ra5 Ra8 Qa4 Ke4 Rb3 Qb2 Rb6 Ra6 Qg5 Ra8 Rg6 Rc3 Qg3 Rb3 Qh2 Rg3 Nf3 Rgg5 Rg3 Bg2 Qg1 Rhg4 Nd6#
B6Q/nq4B1/nn3NP1/K4QQR/3rq2N/2p1b1RB/1N2knPQ/3n1q2 b - - 0 1 legal: proof: c4 d5 a4 dxc4 d4 b5 axb5 g5 h4 a6 hxg5 Kd7 e4 Nc6 d5 Nb8 d6 Ke8 Bf4 a5 Rh3 Ra6 Bc1 Rc6 Rh2 Rc5 Rh1 Rd5 exd5 Bh3 Nc3 Be6 Nb1 Bc8 f3 e5 Ra2 e4 Ra1 e3 Nh3 Bf5 Ng1 Be4 fxe4 Qd7 Bd3 Qc8 Bf1 Qd8 b4 Kd7 g6 c5 e5 f5 b6 h5 b7 a4 b5 a3 b6 f4 Qf3 a2 Bb2 e2 Kd2 e1Q+ Kc2 h4 Qg3 h3 Qh4 h2 Na3 c3 Kb3 f3 Ka4 f2 Qf6 c4 Ka5 Bh6 Nf3 Qe7 Bd3 f1N Be4 Ne3 Nh4 Na6 b8Q Nd1 b7 c2+ Bc3 c1N Qf5+ Qe6 Rb1 a1Q Rb3 Qf1 Bb2 Bg5 Rg3 Na2 Bd4 c3 Nc4 Rh6 Nb2 Nf6 Bf3 Qb1 Bg4 Ne3 Bh3 Nd1 Qh8 Rh5 Qh6 Be3 b8N+ Kd8 d7 Ke7 Qhg5 N2b4 Qgf4 Qf7 e6 Qe4 Q4g5 Kd6 d8Q+ Nd7 e7 Qg7 Qh8 Nb6 e8B Qb7 Bg7 Kc5 Qgf4 Rg5 Bc6 Rg4 d6+ N4d5 d7 Nc8 d8Q Na7 Rg1 h1N Qdg5 Nhf2 Qc7 Rf4 Rh1 Rg4 Nd3+ Kc4 Nd7 Rf4 Nf6 Nb6 Nb2+ Kd4 Nc4 Kd3 Nb2+ Ke2 Qce5 Qb8 Ba8 Qc8 Rf3 Rg4 Qh2 Qcb7 Rg3 Qd3 Qb5 Rd4 Qbf5 Qde4 Nf3 Ng4 Qg1 Ngf2 Bg4 Bf4 Rh5 Bb8 Bh3 Bf4 Qh2 Be3 Nh4
2q3rq/b6p/2B1Qb1N/Bkq2B1P/2RP3N/2K2b2/2Q1Q2R/1qn2qQR b - - 0 1 legal: proof: f4 e5 b4 c5 a4 d5 bxc5 b5 axb5 d4 e3 dxe3 g3 f5 Bc4 a5 Be2 e4 Bf1 Nd7 g4 Ne5 fxe5 f4 Be2 Ra6 Bd3 Rf6 Bf1 Rf5 gxf5 Be6 Nh3 Bd7 Ng1 Bc8 h4 Kd7 c4 g5 d4 e2 Kd2 f3 f6 g4 b6 Kc6 h5 f2 e6 e3+ Kc3 e1Q+ Nd2 a4 f7 a3 b7 e2 b8R a2 e7 g3 e8Q+ Qd7 Qe6+ Qd6 Nf3 g2 Ne5+ Kc7 c6 g1Q c5 Ne7 Rb4 Qg4 Rh2 Bb7 Bg2 f1Q Rc4 Ng6 Bh1 Bg7 f8Q Nf4 Nf7 Nd3 Nh6 Rg8 Qf2 Bf6 Qg1 Qgh3 Rb1 a1Q+ Bb2 Qeh4 Nf3 e1B+ Qd2 Q4g4 Nh4 Bg3 Qde2 Qg7 Rc1 Qa2 Ba3 Qhf5 Bb4 Qb1 Bf3 Qh8 Ba5+ Kb8 c7+ Ka7 c8B Ka6 c6 Kb5 c7 Qdc5 Rd1 Nc1 Bd7+ Bc6 c8Q Bb8 Be4 Qg4 Bf5 Ba7 Qce8 Qgf4 Qc2 Qb8 Qee2 Qa8 Q8e6 Qb8 Bc8 Qc7 Bb7 Bf3 Bc6+ Ka6 Qed2 Qf2 Qg6 Qc8 Rdh1 Qg2 Qde2 Qf1 Ba8+ Kb5 Qg1 Qf2 Bae4 Qf1 Bc6+
4Q3/1kq1R2Q/Q1n3q1/1r2BB1b/3N1Ppr/6N1/r1RB1R1P/rrr1B1K1 b - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 hxg4 a4 b5 axb5 f5 e3 f4 Qb3 f3 Qa4 Be6 Qd1 Bc8 Na3 e5 Nb1 e4 Ra4 Nd7 Ra1 Nb6 Be2 Bd6 Bf1 Bf4 exf4 e3 Ra6 e2 Ra4 Nc4 Ra1 Ne3 fxe3 Ba6 Kf2 Bc8 b4 Kd7 d4 e1R b6 g5 b7 a5 b8Q c5 b5 a4 e4 c4 d6 c3 b6 Kc6 d5+ Kd7 e5 c2 b7 a3 e6+ Ke8 d7+ Ke7 Qc7 a2 b8B Re5 Bd2 Ra6 Qe2 Rh4 Na3 Rf5 Rb1 a1R Nb5 R6a2 Rc1 Ba6 Nd4 g3+ Ke1 g2 Kf2 Qc8 d8R+ Qd7 Re8+ Kf6 e7 Bc8 Qa6+ Kf7 Nge2 g1Q+ Ke1 Qg4 Bh3 f2+ Kf1 Qh5 Rg1 Qg6 Ng3 Re5 Kg2 f1R Qca7 Rfe1 Rf1 Qd8 Kh1 Bg4 Kg1 Bh5 Bf5 g4 Q7b7 Rd1 Be1 Qa5 d6 Rb5 d7 Qc3 d8B Qc8 Rb1 Qc4 Rb2 Rdb1 Be5 c1R Bda5 Qc3 Qd7 Qc7 Bd6 Kf6 Bad2 Kf7 Rc2 Kf6 Rd8 Kf7 e8Q+ Kf6 Rf2 Ne7 Qh8+ Kf7 Qh6 Kf6 Qdc6 Kf7 Rd7 Ke8 Qc4 Nc6 Qh7 R5b3 Rf7 Kd8 Qe6 Rb7 Rd7+ Kc8 Be5 Kb8 Qef7 R7b4 Re7 Rb5 Qa5 Kb7 Qe8 Qh6 Qa4 Qg6 Qa6+
n3K1NR/2Q1prBR/1N3BQq/3N3q/2B1Qnnq/3nP1P1/6r1/1B1k2n1 b - - 0 1 legal: proof: c4 a5 g4 f5 a4 fxg4 b3 b5 axb5 d5 cxd5 a4 b6 a3 Bb2 g5 Nh3 g3 Be5 g2 Nc3 g1N Nb1 g4 Bd4 g3 Bb2 g2 Bc1 Bg7 Ng5 Be5 Nf3 Bg3 hxg3 Bd7 Qc2 Ba4 bxa4 Nf6 Qd1 Ng8 d4 Kd7 Kd2 Kd6 Kd3 c5 Ke4 h5 Kf5 c4 Kg6 a2 Kf7 h4 a5 h3 a6 h2 e3 c3 a7 c2 b7 Na6 b8N Nh3 Ng5 g1Q f4 Qa5 f5 Qd2 f6 Qe2 Nc3 Qg4 Nh7 Qf5 Nd7 Qe5 Qd3 Rc8 a8B Rd8 Qg6 Nc7 Bb2 c1N Nb6 Qh5 Bc4 Nd3 Rf1 a1Q Rf4 Qad1 Rh4 Rd7 Bb7 Na8 Ke8 Qgf1 f7+ Qf6 f8B Qa4 Bg7 Ndf4 Bba6 Qe6 Nf6 Nh6+ Ng8 Ng1 Bd3 Ng4 Bb1 Rh6 Bc4 Rh7 Bf6 Rf7 Ba1 Kc7 d6+ Kc6 d5+ Kc5 Bg7 Ra7+ d7 Kb4 d6 Rb7 Qe4 Qeh6 Ncd5+ Ka3 Baf6 Ra7 Bb5 Kb3 d8Q Qc4 d7 Ra2 Ba6 Rg2 Qc7 Qd4 d8Q Kb2 Qa7 Kc1 Qd6 Kd1 Qac7 Qb4 Bb2 Qd4 Qdg6 Qf6 Bf1 Qfg5 Rh3 Qgh4 Bbf6 Nf3 Rg1 h1N Rh2 Nhf2 Rgh1 Ng1 Bc4 N2d3 Nb4 Qc5 N4d5 Q4g5 Rh5 Qh4 Rh2 Q6g5 Rh8 Qgh6 Nb4 Qf5 N4d5 Qfh5 Qd6 Qh7 Qg5 Q5g6 Qh6 Qhg5 Rh5 Qh4 Qc7 Qgg5 Qhg6 Qe5 Rh6 Qeh5 Bf8 Qg7 R6h7 Qgh6 B8g7
1RKR4/4Rn2/1qQBNk2/1qp2B1Q/P1RQ2N1/3n4/3qPb2/rnNq1n2 b - - 0 1 legal: proof: c4 b5 b4 a5 g4 axb4 f4 d5 cxd5 e5 fxe5 g5 h3 f5 Bb2 f4 Ba3 Bf5 gxf5 g4 Bb2 g3 Bc1 Ra6 Na3 Rg6 Nb1 Rg4 hxg4 Qg5 Qa4 Qf6 Qd1 Qd8 a4 Kf7 d4 h5 Kd2 c5 Kd3 h4 Ke4 b3 d6 b4 Kd5 g2 g5 h3 f6 b2 d7 h2 e6+ Kg6 e7 b3 Kd6 f3 d5 f2 f7 Na6 Bf4 Rh6 Nc3 b1N Nf3 g1N Na2 b2 Qd4 Nc3 Nc1 b1Q Bh3 f1Q Ne5+ Kg7+ g6 Rh5 Bf5 Qe8 d8Q Nh6 Qb6 Nf3 Qc6 Kf6 g7 Qd1 g8R Bg7 f8N Qd2 Ne6 Nb4 Kc7 Nf7 d6 Nd3 d7 Bh8 d8R Qb6+ Kc8 Nb1 Rhg1 h1Q R1g7 Nh2 Ra2 Nf1 Rc2 Qd5 Rc4 Rh1 Rh7 Bg7 Bh2 Bh6 Bg3 Be3 Bh2 Qf8 e8Q Bf2 Bg3 Qb5 Rhg7 Qfd6 Rh8 Ng5 Qh5 Rg1 Rb7 Nf7 Rb8 Qd1 Rhe8 Rh1 Re7 Qd2 Qb7 Qdb6 Qc6 Qd1 Rc3 Qa2 Rc4 Qad2 Bh3 Na3 Nb3 Nh2 Bf5 Q1c2 Bf4 Ra1 Nc1 Nb1 Nf3+ Nde5 Qe3 Nd3 Bd6 Qcd1 Ne5 Nf1 Qee4 Ra2 Qd4 Ra1 Ng4#
2qn1QNn/R2q1Rp1/3N3B/q3RnQ1/n1Qbq3/rk1P2N1/5P2/QK3B2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 c4 g4 hxg4 Be2 d5 Bf1 a5 Nh3 Bb7 Ng5 Ra6 Bf4 Rc6 Bc1 Rc5 dxc5 d4 Nh3 d3 Ng1 d2+ Ke2 Bd5 Ra2 Be4 Ra1 Bd3+ cxd3 Qc7 Qc2 Qd6 Qd1 Qd8 h4 Kd7 b4 e5 f6 a4 h5 e4 f7 a3 c6+ Kd6 c7 a2 c8Q c3 h6 e3 b6 c2 b7 g3 h7 g2 b5 Qd7 b6 Nh6 Qc4 Nc6 b8N Nd8 b7 Nf5 Na3 Ke5 Rh5 Bc5 f8Q Bd4 Qe1 d1N Nb5 Nb2 Nd6 Na4 Bd2 c1N+ Kd1 Ne2 Kc2 Nf4 Ne2 g1Q Ng3 e2 Bc1 Ng6 Bh6 Rg8 h8Q Qh1 Qh7 Nh8 Qg6 Qhc6 Qg5 Qcc8 Qd1 e1Q Qb1 Qe4 Kc1 Qd5 Nc6+ Ke6 Ne7 Ke5 b8R Qe4 Qf7 Re8 Ng8 Re6 Qf8 Rg6 Nb5 Ra6 Nd6 Ra8 Qb2 Ra7 Ra8 Ra5 Rb1 a1Q Ra7 Qa3 Ra1 Qb4 Qb1 Ra6 Ra3 Qa5 Rb7 Ra7 Qa1 Ra6 Kb1 Ra8 Qa6 Kd5 Ra7 Kc5 Rc3+ Kb4 Rcc7 Kb3 Rcb7+ Qdb5 Rf7 Qbd7 Qf6 Ne3 Re5 Nf5 Qg5 Qb6 Qg4 Nb2 Rb7 Qb4 Qc6 Ra3 Qg5 Na4 Ra7 Qa5 Qc4+
2Q5/Q5PN/KnRQ2q1/3qP3/R3N1q1/1nB1NpR1/1nkbn2R/1b1q1B2 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qc2 h5 Qd1 a5 Qc2 Rh7 Qd1 Rf7 h4 Rf5 gxf5 g4 Ra3 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 d4 Ke7 Kd2 Kd6 Kc3 c5 Kc4 g3 e4 h4 b4 h3 g6 h2 f6 f2 e5+ Kc7 f7 Kb6 d6 g2 d5 f3 d7 a4 d6 a3 Nh3 g1Q Nd2 a2 Ne4 Bh6 f8N Na6 Bd2 Ne7 Nf4 Nd5 Bc3 Qg4 Ng2 Bd2 Ne3 Bb7 Rg1 h1Q g7 Qhh5 Nh7 Qhg6 Rg3 Ba8 Rc1 a1N Rc2 Qg8 d8R Nb3 d7 Bc6 Rc8 Bb7 Bd3 f1Q d8R Ba8 Qa1 Qd1 Bf1 Bc6 Rf8 Bd7 Rf4 Bf5 Nef6 Be4 Rb2 Bb1 Ne4 Nc1 Ra2 Nd3 Ra4 Qd8 Rf6+ Qd6 Rh8 Qde6 Qa2 Qc6 Qc2 Nb2+ Kb3 Ne7 Bd4 Nd5 Nhg5 Q4h5 Ra2 Nc4 Ka4 Qg4 Rh2 Kc7 Nh7 Nb2+ Ka5 c4 b6+ Kd7 b7 c3 b8Q Nc5 Qa4 c2 Bc3 c1N b5 Ne2 b6 Ke7 b7 Nb6 Qc4 Nb3+ Ka6 Qcd7 Qd3 Qd4 Rc6 Qc5 Rc7+ Ke6 Qa7 Qd6 b8Q Qc5 Qdd8 Qd6 Nf5 Kd5 Qdc8 Qc6 Ra3 Kc4 Ra4+ Kd3 Ne3 Qc5 Rc6 Qd5 Nc4 Kc2 Qbc7 Qdf7 Qd6 Qd5 Ne3+
1B2NBK1/1q1N4/1R1B1r2/P3r3/2QpPn2/R3QpNk/3bNn1n/2r3Rb b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 e5 fxe5 a4 g4 a3 bxa3 Nf6 a4 Ng8 a5 Ra7 Kf2 Ra6 Ke1 Ra8 a4 b5 a6 h5 gxh5 Qg5 a5 Ne7 Bg2 Ng8 Bd5 Qe7 Bb3 Qd8 Ba4 bxa4 Kf2 Ke7 Kg3 Ke6 Kf4 d5 e4 f5 c4 g6 h4 a3 h6 d4 c6 a2 c5 Qc7 Kg5 f4 a7 f3 h5 Qf7 h7 Bd7 h6 Bd6 c7 Nf6 c8R Qg8 c6 Ng4 c7 Nc6 Rb8 Bb4 c8Q Qf7 Ne2 Nd8 Nbc3 Re8 h8B Rf8 h7 Nh2 Kh6 g5 Qg1 g4 Bg7 g3 h8B g2 Qe3 g1N Kh7 Nh3 Ng3 Nf2 Nce2 Bd2 Ba3 Re8 Rag1 a1R Bd6 Rc1 Rb6 Rb8 a8N Rb7 Rb3 Rb6 Ra3 Ra6 Qc6 Bc8 Qa4 Qb7 Nb6 Kf7 Qc6 Ne6 Bgf8 Nf4 Nd7 Re6 Qc5 Re7 Bb8 Rf6 Bhg7 Re8 Bfd6 Ree6 Kh8 Kg6 Kg8 Kg5 Qc4 Kh4 Bgf8 Re8 e6 Kh3 e7 Rc3 Rb1 Rc1 Ne5 Bf5 Rg1 Bg4 Nc3 Bd7 Rb6 Bb5 Qc5 Bf1 Qc4 Bg2 Nd7 Bh1 Nce2 Rc8 e8N Rc5 Nc7 Re5 Ne8
1n1r1n2/2B5/2R1b1BN/p2NQQ1Q/q3pnKP/1b1Pr3/4Rb1B/3k2NN b - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 d5 gxh5 f5 cxd5 Qc7 exf5 Qd8 a4 cxb4 axb5 Qd7 Nh3 Qc7 Ng1 Qd8 Ke2 Kd7 Kf3 Kd6 h4 Ke5 f6 Kd4 h6 a5 f7 g5 h7 e5 b6 b3 d6 b2 b7 Ra6 d7 Ra7 Nc3 b1B Bd3 Bb4 f8Q Bc2 Rh2 Ba4 Bg6 e4+ Kg4 Kd3 f4 Bd6 f5 Bf4 f6 Qe7 f7 Qa3 Nce2 Bc2 Ng3 Be3 Re2 Bb3 Nh1 Bf2 Bb2 Qa4 Be5 Ne7 Bh2 Ra6 Rc1 Rf6 Rc6 Rf3 Qa1 Rg8 h8Q Re3 Qh5 Rh8 Qe5 Rg8 Ra6 Kc2 d3+ Kd1 Rc6 Rh8 Qd8 Rg8 f8N Rh8 Ne6 Rg8 Bf7 Ng6 Qdf6 Nf8 d8N Bd7 Qef5 Rh8 Nf4 Bde6 Bg6 Rg8 Qe5 Rh8 Qh7 Rg8 Kh5 g4 Nf7 g3 Nd5 g2 Kg4 Rh8 Qh5 Rg8 Nf3 g1N Nh6 Nh3 Ng1 Nf4 Ra2 Na6 b8B Rh8 Bc7 Nb8 Qd6 Nh7 Re2 Rd8 Qe7 Nf8 Qg7 Rf3 Qb2 Re3 Qe5
7Q/1Bb4r/NPb1R3/R1K2kQP/1NRp2N1/3rQ2n/B1n1qbNp/1r6 b - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Na6 b4 Nb8 b5 Ba6 Bg2 Bb7 Bf1 Bc8 h4 g5 h5 h6 Bf4 Bb7 Bg3 Ba6 Bh4 gxh4 g5 Bb7 gxh6 Bc8 Kd2 Kf7 Ke3 Kf6 Kd4 d5 b4 a5 f4 e6 c4 h3 b6 a4 b5 a3 h7 h2 c6 a2 c7 Bb7 c8R Ra7 c5 Na6 c6 Ne7 c7 Bc6 b7 Bg7 b8N Bf8 b6 Qd6 Nf3 Nb4 Qb3 Bb7 Bc4 Ba8 Re1 Nd3 Na3 Nc1 Qe3 Qc6 Nh4 Ng6 Na6 Nd3 Nc2 Nb4 Ng2 Qb5 Bb3 Rg8 h8Q+ Rg7 Qh6 Rd7 Re2 Bc6 Qg5+ Kf7 f6 Bd6 f5 Nf4 Ree1 Qe2 Bc4 Be5+ Kc5 Nh3 Bb3 Bf4 Bc4 e5 Bb3 Rd8 Bc4 Ke8 f7+ Kd7 f8Q e4 f6 Ke6 f7 Rd7 Qh8 Rd6 Rad1 a1R Ba2 Rb1 Rd3 Bg3 Ra3 Rd7 Ra5 Bf2 Qgh6+ Kf5 f8N d4 Ng6 Rh7 Ne5 Bg3 Qc1 e3 Ng4 Bf2 Re8 Ra8 Re6 Bg3 c8B Bc7 Bb7 Rf8 Na3 Nc2 Rd1 Re8 Rd3 Rg8 Rc3 Rg5 Rc4 Rgg7 Nf6 Rg3 Ng4 Qf1 Bb3 e2 Rd6 e1B Re6 Qe2 Ba2 Nb4 Nc2 Rd3 Qcd2 Bf2 Q6g7 Nd5 Ncb4 Ne3 Qc1 Nc2 Qe3 Qf3 Qe7 Qe2 Q7g5+
NB5k/2B2r1B/P1q2rNR/b1R1K1n1/2Ppp1Q1/2bNQ3/1N2r3/1b2nQ2 b - - 0 1 legal: proof: g4 b5 e4 f5 exf5 h5 gxh5 c5 d3 c4 dxc4 b4 c3 a5 cxb4 a4 b3 axb3 Kd2 Kf7 Ke3 d5 Kd4 g5 a4 Kg7 f4 b2 h4 g4 a5 g3 h6+ Kh7 h5 e6 b5 g2 f6 Bd6 a6 Bb7 f7 Qc8 f8Q Be7 b6 Nd7 f5 Qc6 f6 Qd6 f7 Qg3 Ra5 Bh4 Qg4 Ra7 Nh3 g1B+ Nf2 Ne5 Bf4 Qh3 Nc3 b1R Nd1 Bd8 Rc5 Qg2 Nb2 Nf6 Bd3+ Ne4 Bh2 Bc6 b7 Bd7 b8B Re1 Bc2 Nd3 Bhc7 Bh2 Qe8 Ng5 f8N+ Kg8 h7+ Kg7 Bb1 Re2 Bc2 Bc6 Nd7 Rf8 h8N Ne1 Nfd3 Rf6 h6+ Kh7 Ng6 e5+ Kc3 Qf3 Nb6 Ba4 Bb1 Bc2 Na8 Qg2 Qee6 Bg3 Qef5 Kg8 Qf1 d4+ Kb4 Qc6 h7+ Kg7 Rh6 Bf4 Ba2 Bb1 h8Q+ Kf7 Qe8+ Kg7 Bb3 Bc1 Bc2 Bd2+ Kb3 Bc3 Qee6 Qb7+ Ka4 Qc8 Kb5 Rb7+ Kc6 Ra7 Kd5 Rb7 Bb6 Rbf7 B6c7 Kg8 Bd6 Bda5 Bdc7 Qe8 Qgg1 Qa4 Qe3 Qb5 Qg4 Kg7 Ba4 e4 Ke5 Qb7 Bd7 Qc6 Bf5 Kg8 Ngf4 Kg7 Bh7 Kh8 Ng6+
nb6/1P6/R3nR2/q3rp2/N2r1Qb1/NKB2Bp1/1PnB3R/B1QNkb2 b - - 0 1 illegal: Other
1b3B2/nP1K1N2/RQB1n1B1/npp5/2kP1rR1/2qR4/3Nb3/2B1rbQQ b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 e4 d5 a4 b5 c4 f5 exf5 Bb7 cxd5 Bc8 a6 Qd6 a5 Qb6 axb6 Kd8 Ke2 Kd7 Ke1 Ke8 Ke2 Kf7 Kd3 c5 Ke4 e5 g4 h5 f4 h3 d4 h2 a7 h4 d6 h3 Kd5 e4 f6 e3 g5 e2 f5 e1N d7 Ba6 d8Q Rh4 Bd3 Bd6 Nd2 Ng2 Ngf3 Rf4 Qg1 Bc8 Ra6 Nc6 Bc2 Rb8 a8B Na7 Bc6 Rb7 Bd3 Re7 b7 Bb8 Qb6 Re1 Be4 Nh6 Bc2 Ng4 Bd3 Ne5 g6+ Kg8 g7 Kf7 g8R Nc4 Rg4 Na5 Qe3 Bd7 Rf1 h1Q Qg1 h2 Ng5+ Kf8 f7 Ke7 f8B+ Kf6 Bb2 Be8 Rf3 Bh5 Qf1 Qg1 Bc1 h1B Nf7 Qe3 Bb1 Qc3 Rd3 Nh4+ Qg2 Nf3 Qg1 Bg2 Qh1 Bf1 Bc2 Bc7 Qg1 Ng5 Qh1 Bd8 Kd6 Bc7+ Kd7 Bb8 Bd6 Kg7 f6+ Kg6 Bf8 Kf5 Ne5 Ne6 f7 Ng5 Bh6 Ne6 f8Q+ Bf7 Qg7 Bh5 Qg8 Kf6 Bf8 Kf5 Rh4 Bhe2 Qgg1 Kf6 Rg4 Kf5 Bg2 Kf6 Nf7 Kf5 Nf3 Ke4 Bb1 Kd5 Bc2 Kc4 Nd2+ Kb4 Bc6 Bd6 Rdg3 Bc7 Bg6 Bb8 Ne4 Kb3 Rd3 Kc4 Nd2+
4R1b1/BP2B2q/nrb1rN1N/pPBnk2Q/K1QrN3/4b1p1/1RQ5/4B3 b - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 d5 gxh5 f5 cxd5 c4 exf5 Ba6 Bd3 Bc8 Bc2 Nh6 a4 Ng8 Bb3 cxb3 axb5 Qc7 Qf3 Qd7 Qd1 Qd8 h4 Kf7 f4 Kf6 d4 a5 Kd2 e5 Kc3 g5 d6 e4 d5 g4 h6 b2 Kb3 e3 d7 g3 h5 e2 h7 e1R b6 Re7 b7 Na6 h6 Re8 b5 Nb4 d6 Re5 Ra2 Ra6 Nd2 b1B Qc2 Rd5 Nh3 Rc5 Ka4 Ra8 Ng5 Qe7 d8N Bg7 d7 Rc3 Ndf7 Rf3 d8B Rd3 Re1 Bd7 Rb2 Be8 Bb6 Qd7 Nde4+ Ke7 f6+ Kf8 f5 Qc6 Ba7 Qe6 Bd2 Ba2 Re3 Qc6 Be1 Ne7 Qc4 Rg8 h8Q Rd4 h7 Qc7 Nh6 Ned5 f7 Ke7 Nf6+ Kd6 Nge4+ Ke5 f8B Bc6 Be7 Rae8 Qc2 Rgf8 Qg8 Qd7 Bec5 Re6 h8Q Bc4 Qf7 Na6 Qh5 Rfe8 Qg8 Bh8 Qgg4 Qh7 Qge2 Ba2+ Qec4 R8e7 Ne8 Rg7 f6+ Rg5 f7 Rf5 Qg6 Rff6 f8B Bg7 Bfe7 Bf8 Nf5 Bh6 Re2 Be3 Nh6 Bd7 Qg4 Rb6 Qf3 Rfe6 N8f6 Bc6 Qh5+ Kf4 Qd1 Rd6 Nf2 Bd2 Qc2 Ne3 Qb4 Bg8 Bf8 Nd5 Re8 Re6 Bfe7 Bc1 Qbc4 Be3 Qh1 Ke5 N2e4 Bc1 Qh3 Be3 Qh5+
3Q2N1/Bq2qnb1/N1B3rR/3B1K2/b1PpP1R1/2Q2p1r/1kBQr3/1n4R1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 axb5 e4 d4 cxd4 f3 Ba3 fxe4 Be7 e5 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 d3 c4 d6 b6 g4 h6 f6 h5 g3 b7 g2 h7 d2 h6 Qd7 a6 Nc6 b8Q Nge7 a7 Qe8 Nc3 Nd4 Nf3 g1R Ng5+ Kd7 e6+ Kc6 Na2 Kc5 Nf7 Nec6 e7 Ne5 Nb4 Ndf3 Rh4 Bg7 Rg4 Bd7 Qd8 Ba4 Kf5 d5 e4 Kd4 Na6 Kc3 Bd3 Rg3 Qe2 d1Q Be3 Qb1 Bc2 Qb7 Rg1 Kb2 Qd2 Rg2 Bc5 Re2 Bb6 Qf8 e8B Qfe7 Bc6 Rb8 a8B d4 Ba7 Rg8 h8Q Rc8 Nd6 Nf7 h7 Rc7 Ne8 Rc8 Kg6 f5 Nf6 f4 Kf5 Rc7 Bd5 Rc6 Q8a5 Rgc8 Ng8 Rg6 Qd8 Rcc6 Q8a5 Rh6 Qd8 Rcg6 Bc6 Rh3 Bd5 Qbb4 Bac6 Qbb7 Q8a5 Ka2 Qdc3 Nd2 Qab4 Nb1 Qd2 f3 Qbc3 Bh6 Qf6 Bg7 h8R Qbc7 Rh6 Qb7 Qcd3 Kb2 Qd6 Be5 Qd8 Bg7 Q3c3+
1RnN3k/2b1BRNQ/2q1Q2B/r1P4B/4bP2/1R5n/3K1p1p/r2B1qQr b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 f4 f5 e3 e5 fxe5 Bb7 Rh4 Ba6 Rh1 Bc8 Rh5 f4 Rh6 f3 Rh2 Qf6 Rh1 Qf4 exf4 Kf7 Nd2 Ke7 Nb1 Ke8 c4 Kf7 g4 Kg7 b4 a5 e6 h5 e7 d5 e8B d3 g6 a4 g5 f2+ Kd2 a3 c5 h4 b6 h3 b7 h2 b5 a2 b6 d4 Nf3 Ra7 Nh4 Nc6 b8B Rc7 b7 Nb4 Be2 Rd7 Bd6 Ne7 b8R Nbc6 Qg1 Ne5 Nf5+ Kg8 g7 Bb7 B8h5 Nc8 Bb2 Be4 Na3 Nf7 Nc2 Rb7 Rd1 a1R Nb4 Be7 Re1 Bd8 Be7 Bc7 Nc6 Rb6 Bc3 Rbb1 Bd1 Rh6 Nd8 Rha6 Nd6 R6a5 Ne8 Kh7 g6+ Kh6 g8Q Ng5 g7 Nh3 Qd5 Kh7 g8Q+ Kh6 Bb3 Ra8 Q1g4 Ng5 Reg1 Nh3 Qde6+ Bg6 Rg3 Re1 Rhg1 R8a5 R1g2 Rg1 Qd1 Rh1 Qg1 Na7 Qgf7 Nc8 Qff5 Kh7 Bb2 R1a4 Kd1 d2 Bc1 Kh8 Bb2 Ra1+ Qb1 Bf5 Rc3 Bd3 Rg7 Bf5 Ke2 d3+ Ke3 d1Q Rf7 d2 Bc2 Qg4 Rcb3+ Qg7 Bbf6 d1Q Bg5 Qf1 Bh6 Qe5+ Kd2 Qe4 Bcd1 Qc6 Ng7 Bc2 Qb2 Bb1 Qd4 Bc2 Qd3 Bb1 Qdf5 Be4 Qh7+
1R2r3/2BbQn2/1NQR2r1/P4q1n/QNbpPQ2/1p1Bkn2/R5q1/KN6 b - - 0 1 legal: proof: d4 a5 h4 e5 g4 g5 b4 axb4 f4 f5 fxe5 c5 gxf5 g4 dxc5 Bg7 Qd6 Bh6 Qd1 Bg5 hxg5 Ra6 Bg2 Ra4 Bf1 Ra8 Kd2 Ke7 c4 d5 Kc2 b5 Kb2 h5 e4 b3 a4 g3 a5 h4 g6 h3 c6 d4 c5 b4 e6 Kf6 e7 Ke5 e8Q+ Qe7 f6 g2 f7 h2 f8Q Nf6 c7 Nbd7 g7 Nh5 g8R Ng7 c6 Qe6 Ne2 g1N Nec3 Ra6 Qee7 Nh5 Na2 Nf3 Bd3 Rb6 Rhg1 h1Q R1g6 Qg2+ Qc2 Ra6 Bg5 Rb6 Bf6+ Kf4 Be5+ Ke3 Qff6 Bb7 c8N Qf5 c7 Bc6 Qff7 Bb5 Rd6 Bc6 Rd8 Re8 Bh2 Ra6 Nb6 Nde5 c8Q Bd7 Qff8 Nf7 Qc6 Ra7 Qa4 Rc7 Rb8 Rc6 Rh6 Rg6 Bc7 Rg4 Rd6 Rg5 Kc1 Rg6 Qcc6 b2+ Kd1 b3 Nb4 Qfh3 Ra2 Qf5 Qh6+ Nf4 Qh2 Nh5 Qf4+ Kf2 Nd2 b1B Kc1 Bc2 Kb2 Bb1 Qg4 Ke3 Ka1 Bc2 Qg3 Bd1 Nb1 Be2 Bc2 Ba6 Bd3 Bc4 Qf4+
nBB5/Q1N2qB1/qRb3P1/2pP3N/p1b1r1QN/r2q4/n1k3K1/1RN1Q3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Kf2 Kd7 d4 Kd6 b4 e5 g7 c5 f6 h5 f7 a5 f8N a4 g6 e4 b6 f3 b7 h4 b5 h3 b6 h2 Nc3 Nd7 Bh3 Ngf6 g8N e3+ Kg3 f2 b8B+ Qc7 b7 f1Q Qg4 e2 Bh6 Nb6 Bg7 Be6 Nf3 Ra6 Rb1 Na8 Rg1 h1B Na2 e1Q+ Kh2 Bf7 Nh4 Qd3 Nc1 Qef1 Ne6 Ne4 Nf6 Nc3 Nh5 Na2 Rg2 Rb6 Rgb2 Rb4 Rb3 Rc4 Rb4 Re8 R4b3 Rc3 Rb6+ Kd7+ d6 Bc6 Bh8 Qa6 Bg7 Qfd3 Kg1 Ra3 Kf2 Qd8 Nc7+ Qf5+ Kg1 Re4 Kg2 Bc4 d5 Qf6 Nf4 Qf7 Nh5 Kd8 d7 Ke7 Kh1 Kd6 d8Q+ Q5d7 Qdg5 Qdf5 Qe3 Qf1+ Qeg1 Qe2 Qe1 Qd3 Bh6 Ke5 Kg2 Kd4 Bg7+ Qf6 Qg1+ Kc3 Qe1+ Kc2 Qg5 Qe7 Bc8 Qd7 Qg4 B6b5 Ba7 Qf5 b8Q Qf7 Qb7 Bd7 Bb8 Bc6 Qa7
1b6/rQ2nnQB/qP2BK2/3bN3/kn3R2/1p2RR2/PNq1Q1p1/3BrB2 b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 c5 gxh5 Qc7 d4 Qb6 dxc5 Qd8 c4 a5 b4 b6 b5 Qg5 Ba3 Qf6 cxb6 Qe7 c5 Qd8 Bb4 axb4 Kd2 g5 Kd3 d5 Kd4 Kd7 e4 f5 h4 g4 h6 f4 h5 b3 h7 g3 c6+ Ke7 h6 f3 c7 Kd7 e6+ Kd6 b7 f2 e7 g2 e8B Qd7 e5+ Ke6 b6 Bd6 Nd2 Qb5 Bg6 Kd7 e6+ Kc6 e7 Be6 e8B+ Bd7 c8B Ne7 Rh3 Qa4+ Nc4 Kb5 Nf3 Bc6 Be6 Na6 b8Q Nb4 Qe2 Ra7 Nfe5 Qa6 Re3 Ka4 Qb7 Bb8 Rd1 Rf8 h8Q Rf5 h7 Rf6 Kc5 d4 Qg7 d3 Kd4 d2 h8R Rf5 B8f7 Bd5 Rhh3 Rh5 Rhf3 Rh1 Re1 d1Q+ Bd3 Rg1 Bh5 Qc2 Bh7 Rh1 Re4 Rg1 Ref4 Rh1 Qe4 Rg1 Ree3 Rh1 Be2 f1N Bhg4 Ng3 Bf1 Rg1 Qd3 Ne4 Qe2 Nd6 Nb2+ Ka5 Nd7 Rh1 Ke5 Nf7+ Kf6 Rg1 Ne5 Rh1 Nd1 Ka4 Nb2+ Ka3 Rh3 Bd6 Qe1 Ra8 Bd1 Bb8 Bc4 Ra7 Rhf3 Rf1 Qf2 Re1 Qd2 Be4 Bf1 Bd5 Nbc4+ Ka4 Qe2 Kb5 Nb2+ Ka5 Nbc4+ Ka4 Nb2+
RbNk4/3n1pR1/QNR1qrB1/4b1r1/p7/1Q1rP2R/2KP2N1/Bn2q1Q1 b - - 0 1 legal: proof: b4 a5 g4 b5 f4 d5 c4 h5 cxd5 e5 gxh5 exf4 a4 Be7 axb5 Be6 b6 Bc8 b5 Ba6 bxa6 Bf8 h4 g5 a7 c5 h6 g4 h5 f3 h7 c4 h6 a4 e3 g3 d6 g2 d7+ Ke7 b7 c3 Rh3 c2 Ne2 g1R Nf4 Na6 b8Q Rg5 Qb3 Re5 Bd3 Qb8 d8R Qd6 Ng2 Ra5 Bg6 Rg5 Nc3 Nb8 Bb2 c1B Ne4 Nf6 Rc8 Qe6 Rc6 Nd5 Nd6 Nd7 Nc8+ Kd8 Rb1 Be7 Ba1 f2+ Ke2 Bb2 Kd3 f1Q+ Kc2 Rb8 a8N Nc3 Nab6 Qe1 Qe2 Rb7 Qa6 Bd6 Rd1 Re8 h8Q Bb8 h7 Nb1 Qg8 B2e5 h8R Rc7 Rc1 Ra7 R8h7 Rf8 Rg7 Rc7 Rc3 Rc6 Rc5 Rd6 Rc7 Re8 Ra7 Rd4 Ra8 Rd3 Qh7 Rh8 Qh5 Rh6 Qd1 Qh4 Qg1 Qe1 Be4 Rf6 Bg6 Bec7 Kb2 Bh2 Rc6 Bhe5+ Kc2
Bn2b1q1/1B2pnQp/Rq1k1r2/Q6R/P3R3/1QN5/2R2bKP/r2b2NN b - - 0 1 legal: proof: e4 c5 b4 g5 c4 b5 f4 a5 fxg5 d5 bxa5 Ba6 exd5 Bb7 Ba3 Bc8 Bb4 cxb4 cxb5 Qd7 Nh3 Qc7 Ng1 Qd8 Kf2 Kd7 d4 f5 g4 f4 a6 f3 a7 b3 g6 b2 g5 Nh6 d6 Ba6 d5 Qa5 b6 Qb5 b7 Rg8 g7 Qb4 g6 Nf5 Qb3 Nd4 Bg2 Ne2 Nc3 Rh8 g8Q b1Q g7 Nc6 b8R Bd3 Rb5 Qg4 a4 Nc1 Ra2 Nb8 Rc2 Bg6 Ra5 Bf7 Ra6 Be8 Qf7 Qg6 g8N Bg7 Nh6 Rg8 Ng4 Bd4+ Kg3 f2 Qg7 f1B Be4 Bb5 Kg2 Qe6 Nf2 Be2 Bf3 Nd3 Be4 Kc8 d7+ Kc7 d8R Bd1 Rc8+ Kd7 d6 Ne5 Rc5 Nf7 Rh5 Bb6 Bb7 Be3 Qa2 Qb6 Qb1 Qc4 Qb3 Ke6 d7 Kd6 Nf3 Qe6 Re1 Rf8 Nh1 Bf2 Re4 Rg8 Qg5 Rg6 Ng1 Rf6 Qg4 Qd5 Qc4 Qg5 Qb3 Qg8 d8Q+ Nd7 Re1 Rc8 Qg7 Rc5 Qa8 Nb8 Re4 Rb5 Qa2 Rb1 Qb3 Nd7 Qd8 Rc1 a8B Ra1 Qc8 Nb8 Qf5 Ne5 Qfg5 Nf7 Qa5
3K1k2/N1pb2B1/R1Pq2Q1/n2N2BQ/1NnB1Rr1/rp6/N3P2Q/b3q1n1 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 f6 exf6 Qe7 bxa5 Qd8 f3 Nh6 f4 Ng8 g4 h5 f5 g6 Bh3 Nh6 fxg6 Ng8 g5 Rh7 Be6 Rh8 Bg4 hxg4 Kf2 d5 Ke3 b5 Kd4 g3 Ke5 g2 a4 d4 h4 b4 c4 b3 a6 d3 a5 d2 a7 Nh6 c5 Nd7+ Ke6 Rb8 a8Q Rb5 g7 Ba6 g8N Qc8 g6 Rb4 g7 Rb5 f7+ Kd8 c6 Rb8 h5 Ba3 f8B Ke8 Nc3 Bd3 a6 Nf7 a7 Rb5 h6 Be4 h7 Nh6 Nh3 g1N Be7 Bg6 Nf2 Bd3 Rh4 Bb1 Rf4 Ba2 Bf6 Nf7 Ne7 Rh5 Ned5 Nd6 Nd3 Bb1 N3b4 Nb7 Nca2 Rg8 h8B Qd8 Qb8 Bg6 a8N Rh1 Nab6 Na5 Nc8 Nb6 Na7 Nbc4 Qb5 Bb2 Qf1 d1Q Qg2 Rh5 Qh2 Qe1 Be3 Be4 Bg5 Rh4 Bd4 Rg4 Bdf6 Rf8 g8Q Bg2 Bd4 Bh3 Bhf6 Bc3 Qh7 Rh8 Qg6+ Kf8 Nc1 Rh5 Ra3 Ba1 Nca2 Qb8 Kd7 Qb6 Na6 Qc5 N6b4 Qd6+ Kc8 Nb7 Ra6 Nba5 Qc5 Rgh4+ Kb8 Bd7 Qb5 Rg4 Qc5 Be8 Kc8 Bd7+ Kd8 Rh3 Qg3 Qf1 Ne3 Bc3 Nc1 Rh1 Qh2 Nh3 Bh4 Qf2 Qcg5 Rf1 Qb5 Ng1 Qbh5 Rd1 Bhg5 Qe1 Ned5 Bb2 Ncd3 Ra1 Nc1 Ra3 Nca2 Ba1 Bg7+
Q6B/2B2n1b/1Q1R3b/7N/2p1RR2/Nr1q1b1p/KbPBkPQ1/R2rn3 b - - 0 1 legal: proof: e4 e5 g4 b5 d4 f5 exf5 b4 dxe5 b3 axb3 Nc6 b4 Nb8 b5 Kf7 Qe2 Ke7 Qd1 Ke8 g5 h6 gxh6 g6 h7 Bg7 Nh3 Bh6 Ng1 Bf8 h4 Bd6 h5 Nh6 Be2 Ng8 h6 Bf8 Bh5 gxh5 Kd2 Ke7 Kc3 a5 Kb3 d5 f6+ Ke6 f7 Kf5 e6 Ke4 b6 c5 e7 c4+ Ka3 h4 b4 d4 b7 h3 b5 a4 b6 d3 Kb2 d2 Qf1 d1B Na3 Bf3 Bd2 Bf5 Ka2 Na6 b8Q Qd3 b7 Nc5 Ne2 Ra6 Qa7 Rb6 b8B Rb3 Nf4 Bg7 f8R Bg6 Nb5 a3 Bc7 Bb2 Qb6 Bf5 Rd1 Bc1 Ka1 a2 e8R+ Ne6 Ng2 Be2 Bg5 Qe3 Qc5 Kf3 Nf4 Nd4 Na3 Be4 Qg1 B2d3 Nh5+ Ke2 Qg2 Nf3 Re6 Bc6 Rf7 Bg6 Rdd7 Qe4 Rhd1 Ne1 Qb6 Qe3 Rff6 Bf3 R7d3 Ne7 Rf7 Rd8 h8Q Nc8 h7 Nd6 Re4 Rd7 Rf5 Nf7 Qa8 Rd8 h8B Bh7 Rdd5 Bd2 Rb1 Rd6 Rf6 Bc1 Rdf5 Rd1 Rd6 Bd2 Red4 Qd3 Re4+ Be3 Bf4 Rc3 Kb2 a1B+ Ka2 Bb2 Ra1 Rb3 Bfe5 Qd2 Bc3 Qd5 Bd2 Qd3 Red4 Bg5 Rff4 Bh6 Rde4+
1K3bQ1/1R2r3/b1N1q3/NR3pnB/PQnN2P1/1rBp1nn1/2R5/k1Q3Q1 b - - 0 1 illegal: No possible last move
1K2nn2/5Q2/1b4R1/1B2pbP1/q2N1N2/RB1nr1nP/2R1p1Nr/B1N2kQ1 b - - 0 1 illegal: No possible last move, all moves rejected
2kq2Q1/8/1Pn1Rb1b/3p1QQR/1nN1P2p/2r1Q2B/1r3nKn/1NBN2B1 b - - 0 1 legal: proof: d4 b5 g4 e5 f4 g5 fxe5 f5 a4 c5 axb5 cxd4 h3 Bb7 gxf5 g4 Ra2 g3 Ra4 Bf3 Ra1 Bg4 hxg4 Qe7 Ra6 Qh4 Ra1 Qd8 b4 h5 c4 d5 f6 Kd7 b6 a5 b7 g2 Kf2 a4 c5 d3 c6+ Kc7 e6 a3 g5 d2 b5 a2 g6 Bd6 e7 Bb4 e8Q Ra7 f7 Ba3 f8Q Ra6 g7 Rb6 Qe3 Rh6 Qf5 Ne7 g8Q Nd7 b8B+ Kc8 c7 Rhc6 Ba7 Rc3 Nh3 g1N Kg2 Nf3 Nf2 Nh2 Qdc2 d1N Qfg5 Rb7 Qcf5 Nc6 Bd4 Bf8 b6 Bh6 Bc5 Ra7 Bd4 Nb4 Bc5 Nb2 Nd1 N2d3 Bd4 Nf2 Bc5 Kb7 c8N Ne5 Nd6+ Kb8 Nc4 Nec6 Kg3 Raa3 Bh3 Rab3 Kg2 Rb2 Qed3 Ne4 Bg1 Nf2 Qde3 Kb7 Bg4 Nf1 Rh4 Nh2 Bh3 Kb8 Re4 Kb7 Re6 Kc8 Nbd2 Rbc2 Rb1 a1B Rb3 Rb2 Nb1 Na6 Ra3 Nab4 Ra7 h4 Rh7 Bg7 Rh5 Bf8 Qh8 Bh6 Qhg8 Ra2 Na5 Rd3 Qee4 Bf6 Nc4 Rb2 Qd4 Rf3 e4 Rc3 Qde3
RQRB4/2p2p2/r4n1R/BQRN1N2/1n1PqN1P/1r1B1n1K/1kb5/b6n b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Ke7 Kg2 Kd6 e4 Ke5 d4+ Kf6 h6 g5 b6 g4 d6 g3 h7 Qd7 a6 Qe8 a7 Be6 e5+ Kf5 d7 Ke4 d8B Qe7 b7 Bf5 e6 Na6 b8Q Nb4 Ne2 Nf6 Qa4 Kd3 Qab5+ Kc2 Bd2 Kb2 Ra5 Bc2 Kh3 g2 Nbc3 f3 Nf4 f2 Bd3 f1N Ncd5 Ng3 Be1 Rg8 h8R Qe8 e7 g1N+ Kh4 Qc6 e8N Nf3+ Kh3 Rg5 Ng7 Bc5 Nb6 Qe4 Nbd5 Re5 Bd2 Re6 Be1 Ra6 Nf5 Rb6 Rh6 Rb7 Rg1 Nh1 Rg8 Bf8 Ra3 Bc5 Rc3 Bb6 Rc5 Ba5 Bd2 Rb6 Qc8 Rab8 a8R R8b7 Qb8 Ra6 Qc6 Na2 Be1 Rb3 Qcb5 Bc3 Re8 Nb4 Reh8 Ka3 Bd2 Ba1 Bc3 Na2 Ba5 Nb4 Kg2 Rd6 h4 Ne1+ Kh3 Kb2 Be7 Nf3 Rc8 Ra6 Bd8
2Bn2q1/1N4R1/Kn2rr2/1R1B1r2/4Q3/b1P2p1n/1N2BpP1/BQq1kNR1 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 h4 exf4 d4 Ba6 dxc5 Bc8 b6 g5 hxg5 a5 b3 a4 Bb2 a3 Bc1 Bb7 Rh4 Bc6 Rh1 Ba4 bxa4 Ra7 Bd2 Ra6 Bc1 Ra8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 Kb5 Kg4 e4+ Kg3 g6 Kf2 g7 h5 b7 d5 a5 f5 c3 d4 c6 d3 e5 a2 a6 d2 a7 h4 c7 f3 c8B f4 e6 h3 e7 h2 e8N Nh6 g8B Nd7 b8R Nb6 Be2 Nf7 Bb2 Rh6 Na3 Rf6 Nc4 Ba3 Qb1 d1R Ned6 Rd5+ Ka6 Rdf5 Rb7 Rb8 a8Q Qf8 Re7 Nd8 Bd5 Qg8 Rg7 Re6 Nb7 Ref6 Bc1 Ke1 Nb2 Re6 Bf1 Ref6 Ne2 Re6 Rg1 h1N Ng3 Nf2 Ne4 Nh3 Nd2 Ref6 Bd3+ Kf2 Nf1 Ke1 Be2 f2 Qd3 f3 Rb1 a1Q Qe4 Re6 Qa7 Na8+ Qb6 Ref6 Na4 Re6 Rb5 Rff6 Bb2 Qc1 Ba1 Rf5 Qc6 Nb6 Nb2 Ref6 Qb1 Re6 Nc5 Rb7 Qe8 Rbf7 Nb7 R7f6 Qg6 Nf7 Qg4 Nd8 Qge4
NN5b/2qr4/2rB1RR1/q1pqrkN1/p2n1P2/B2P2R1/3QR3/1QKn2Q1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 f5 g4 f4 Bh3 f3 exf3 Bf5 gxf5 Qd6 Bg4 hxg4 f4 Qd7 f3 Qd8 b4 Kf7 h4 Kf6 b6 g5 b7 e5 d6 c5 d7 a5 b5 e4 b6 e3 h5 e2 h6 g3 h7 a4 Ra2 g4 Ba3 g2 Nh3 g3 Ng5 Qe7 d8Q Ra7 Rh3 Ra6 Nc3 Ra8 Nb5 Ra7 Nc7 Ra5 Na8 Nd7 b8Q Ra7 b7 Nh6 d3 g1Q+ Kd2 e1R Kc1 g2 Qa5 Re5 Qd2 Qe8 Rg3 Qh1 Qg1 Qc8 Rb2 Rg8 h8R Rg6 Rg8 Bg7 Re8 Bh8 Re6+ Kg7 Ra2 Ng4 f6+ Kh6 f5 Qc7 f4 Nf2 f7 Nf8 f6 Nd1 Rc2 Kh5 Rb2 Rh6 Rbb6 Kg6 Rbc6 Kf5 Ra6 Ng6 f8R Nh4 f7 Nf3 Rfe8 Nd4 f8B Qh5 Rab6 Qf3 Rg6 Qd5 Rbe6 Qa5 Bd6 Qc7 Qf1 g1Q R8e7 Qgh1 Qg8 Qa5 b8N Rd7 Qg1 Qhf3 Qd8 Qb7 Qb6 Qfd5 Qbb2 Qbc7 Qb1 Rh4 Rh7 Rg4 Rh2 Rh4 Re2 Rhh7 Be7 Rd6 Bf8 Rc6 Bd6 Rd7 Ref6+
4N1N1/2NN2kq/r2Pn3/r1prb1B1/R2B4/R1p3R1/q1P4n/Q1qB1Q1K b - - 0 1 legal: proof: e4 d5 a4 a5 g4 b5 Qe2 f5 exf5 h5 gxh5 Bd7 Qc4 dxc4 axb5 a4 b6 a3 b3 Ba4 bxa4 Ra7 Be2 Ra6 Bf1 Ra8 h4 Kf7 f4 e5 Kf2 g5 Kg2 c5 d4 e4 b7 g4 h6 a2 h5 g3 a5 e3 a6 e2 a7 e1Q f6 Nc6 b8N Qd5+ Nf3 Ne5 f5 Rh7 Nd7 Rg7 h7 Rg5 h8Q Rc8 a8R Nc6 h6 Qe8 h7 Ne5 Be2 Rc6 Ra4 Rc7 Na3 Rg6 Nb5 Bh6 Rh3 Qde6 d5 Bf4 d6 Rb7 Nd2 Rg5 Bd1 Rb6 Ne4 Ne7 Kh1 Ng4 Nc7 Be5 Bf4 Rh5 Bg5 Nd5 Ra3 Q8e7 Qa8 c3 h8B Qe8 Qa6 Kg8 f7+ Kh7 f8Q Nf4 f6 Nh2 f7 Q8e7 Qa7 Ra6 Ndf6+ Kg6 Ng8 g2+ Kg1 Qb3 Nef6 Ne6 Rg3 Ra5 Qa6 Qd5 Qfa8 Qd7 f8N+ Kf7 Rc1 a1R Qf1 Qa2 Rb1 Qe7 N8d7 Kg6 Rb4 Qh7 Bg7 Kf7 Rba4 Ra6 Be3 Rg5 Bh6 Rh5 Bhg5 Kg7 Bd4 Ra5 Kf2 g1Q+ Ke1 Qh1 Kf2 Qf3+ Kg1 Qe3+ Kh1 Qc1 Na6 Rb1 Nc7 Rb6 Qb7 Rba6 Qb1 Rh4 Qa1 Rg4 Bg1 Rd4 Bf2 Rd5 Bg1 Bf4 Bd4 Be5 Nfe8+
3NqNn1/k2rQ1qQ/2p1PR1r/1Pb3B1/1Q4Nn/2q1B1pQ/8/B3nK1R b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Be6 Bh3 Bf5 gxf5 Qe7 Bg4 hxg4 Qb3 Qd6 Qd1 Qd8 e4 Kd7 b4 Kc8 h4 Kb7 d4 g5 h5 a5 e6 c6 h6 f3 b6 f2+ Kf1 g3 e5 g4 d6 a4 d5 a3 h7 a2 b5 Be7 f6 Qf8 d7 Qg7 d8N+ Kc8 b7+ Kc7 f7 Kb6 f8Q Bg5 d6 Ra7 e7 Ra8 e8Q Bd2 e6 Ne7 d7 Bh6 Qd3 Ng6 Nh3 Be3 Qee7 Ra7 Nf4 Nh4 Na3 Bc5 Nc2 Qc3 Rb1 a1N Ne3 Nc2 Ng6 Ne1 Qff5 Qc4 Nf8 g2+ Ke2 g3 Qh3 g1Q Ng4 Qc3 Be3 Qg2 Qc4 Qh2 Qb4 f1Q+ Kd1 Qf4 Ra1 Qg1 Ke2 Qf7 Rd1 Qe8 Rd2 Qh2+ Kf1 Qg7 Rf2 Qc3 Rf6 Qhb2 Rh6 Qg7 Rg6 Qbc3 Rf6 Na6 b8B Nc7 Qc4 Rb7 Qb4 Nd5 Be5 Ka7 B5d4 Qc2 Ba1 Qc3 Rf5 Nf6 Rf4 Rg8 h8Q Rc7 Qh6 Rh8 Qh7 Ng8 Rf6 Rb7 Nf7 Rc7 d8B Rb7 Ba5 Rc7 Nd8 Rd7 Bc7 Nc2 Bcf4 Ne1 Qh5 Rh6 Bg5 Bd4 Qg6 Bc5 Qh7
n1QQ1qN1/B2PB2n/N5B1/b4kq1/1p1K1Np1/Pr1R1Q1R/b1b5/1Nn5 b - - 0 1 legal: proof: c4 b5 b4 a5 e4 d5 g4 h5 gxh5 f5 exf5 axb4 d4 c5 cxd5 c4 Bd3 Ra7 Be2 Rc7 Bf1 Rc5 dxc5 Rh7 Ne2 Rh6 Ng1 Rh8 Kd2 Kd7 Ke3 g5 h4 e5 f4 b3 h6 c3 c6+ Kd6 a3 b2 c7 g4 f6 c2 h5 e4 h7 b4 f5 Ke5 f7 Qe7 h6 Kf6 d6 Kg5 f6 Nd7 Bd3 Bb7 c8N Ba8 Rh3 Qe5 Qf3 Bg7 f8B Qf5 f7 Bd5 Be7+ Ngf6 f8N Nb6 d7 Na8 Kd4+ e3 Ne2 Ba2 Nf4 e2 Be3 c1N Bg1 Qb5 Bg6 e1Q Bf2 Qef1 Be3 Rg8 h8Q Qa5 h7 Qf2 Bh5 Kf5 N8e6 Re8 Nc5 Bh6 Bf7 Bg5 Na6 Qb5 Qg8 Qff1 h8Q Nh7 Bg1 Rf8 Be8 Rf6 Bf7 Rc6 Qe8 Rc3 Qd8 Rb3 Qde8 Re3 Bd6 Re2 Qb7 Be7 Ng2 Rf2 Bg6+ Kg5 Ke4 Rc2 Nc3 b1B Ba7 Bd8 Ne7 Re2+ Kd4 Ba5 Qec8 Re3 Qhd8 Qf8 Nf4 Bc2 Qf3 Nd3 Rd1 Nc1 Nb1 Rb3 Rd3 Qbf5 Ne2 Kf6 Ng8+ Ke6 Be7 Qb5 Bh5 Qg5 Nf4+ Kf5 Bg6+
B2rB1q1/2P2Q2/R1nNqR1p/B1n2qbB/5bNQ/2P1N1k1/4K1p1/2R2n2 b - - 0 1 legal: proof: f4 c5 g4 e5 d4 exf4 dxc5 a5 a4 f5 Na3 b5 axb5 f3 Nb1 f4 Kd2 Ra6 Ke1 Ra7 h3 g5 Qd2 Bb7 Qd4 Be4 Qd1 Bf5 Kf2 Ra6 Ke1 Rg6 gxf5 g4 Be3 g3 Bc1 Rg4 hxg4 Qc7 Rh4 Qb6 Rh1 Qd8 b4 Kf7 e4 Kf6 b6 Ke5 f6 d5 f7 f2+ Ke2 g2 c6 h6 g5 d4 g6 a4 b5 a3 c7 a2 g7 Bb4 f8Q Be7 b7 Nd7 b8N Bg5 b6 Rh7 b7 Ndf6 Qf7 Nh5 Nf3+ Kd6 e5+ Kc5 e6 Kd6 e7 Qe8 Ne5 Rh8 Bd2 Nhf6 Na3 Ne4 Ng4 Nc5 Ne3 Ke5 Nc6+ Ke4 Rc1 a1B b8R Qd8 e8B Ne7 Ne5 Nc6 Ba5 d3+ Kd2 f3 g8B Qd7 Nb5 Qe6 Ng4 Be5 c3 Bef4 Be2 f1Q Ra8 f2 Ra7 Bh4 Qe1 Bhg5 Kd1 d2 Ra6 Qg1 Rh3 f1N Rf3 Qh1 Qh4 Qh3 Qhh5 Qg3 Qh1 Qh3 Rf2 Qh5 Rf3 Qhg6 Bh7 Qgf5 Bg6 Rg8 Bh5 Rf8 Bc4 Rh8 Ke2 d1Q+ Kf2 Qb3 Ke2 Qeg6 Be6 Qg8 Bc8 Qbd5 Bb7 Qde6 Ba8 Be5 Rh3 Kf4 Rh4 Kg3 Nd6 Qc8 Nh2 Qce6 Rf4 Qfh7 Rf6 Qhf5 Nhg4 Bef4 Qe7 Rh7 Qf8 Rd7 Qf7 Rd8 Qh4+
1rB3K1/4kr1r/4N2q/r1Q2p2/2Q3nP/1pN1r1Q1/NR3PR1/1R1b1BRn b - - 0 1 legal: proof: d4 a5 a4 e5 dxe5 b5 axb5 h5 g4 Qe7 gxh5 Qd8 b6 Rh6 b4 Ke7 Bd2 Rh8 b5 Ke8 Bb4 axb4 c3 b3 Ra5 Qg5 Ra1 Bb4 cxb4 Qd8 Kd2 c5 Kc3 f5 Kc4 g5 Kd5 c4 e4 g4 h4 c3 h6 g3 h7 d6 e6 c2 e7 c1R e5 g2 b7 Qa5 Qg4 Qa4 b6 Rc4 b5 Qa3 Nf3 g1R Nd4 Qb4 Nc3 Rc6 Ne6 Qf4 Rb1 Nd7 b8R Nc5 b7 Ra1 b6 Rg2 Rg1 Qc1 Qc4 Rg3 Rg2 Kd7 e8B+ Ke7 Bd7 Ra5 Ra8 Qe3 b8N Qh6 b7 Rc7 Na6 Re3 b8Q Ne4+ Qbb5 Rb7 Qbc5 Ng3 Nb4 Nh1 Nba2 Rb8 Rb2 Ba6 Bc8 Bb5 Rb1 Be8 Rg1 Bh5 Ra7+ Ke8 Rag7 Bd1 R7g2 Ke7 Rb2 Qg5 Rb1 Nh6 Rb2 Rf8 h8Q Rf7 Qg8 Qf4 Qg3 Ng4 Nd4 Qh6 e6 Ke8 e7 Rh7 Kc6 d5+ Ne6 d4 Kd6 d3 Rb1 Kf7 e8R d2 Kd7 Kf6+ Kd8 Bf3 Re7 d1R+ Ke8 Rd7 Rb2 Bd1 Rb1 Qh5+ Kf8 Qh6+ Kg8 Rda7 Rd7 Rab7 Rd2 Rbf7 Q5d4+ Ke7 Rdb2 Qf6 Qde5 Qh6 Qec5+
2k1nK2/2Nr4/NPN1r3/3rP1R1/2p1R1r1/B3B1n1/rp2BQ2/1Q1b1NqQ b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 h5 gxh5 a5 b4 e5 bxa5 b4 f4 b3 a3 Bb4 axb4 exf4 Kf2 Kd7 Kf3 f5 e4 g5 d4 c5 h4 b2 e5 c4 a6 Qc7 d6 Rh7 d5 Qb7 h6 Qc6 h5 Qb6 a7 Qb5 Nc3 Qa6 b5 Rg7 b6 Nf6 h7 Re7 h8Q Nh7 h6 Bb7 Ne4 Nc6 Rh5 Nb8 Qf6 Qa3+ Be3 Kc8 Ne2 Na6 Nc5 Rd7 Qb1 Nc7 Na6 Qc5 Ng3 Ne8 Be2 Qd4 Qf8 Nf6 h7 Ne4 Nf1 Ng3 h8Q Bc6 Rh4 Ba4 Rg4 Bd1 Qh1 Rb8 a8N Qc5 Bd2 Qg1 N8c7 Ra8 Ra3 Ra7 Re3 Ra8 Re4 Ra7 Nb4 Ra2 Nba6 Qc5 Kg2 f3+ Kh3 f4 Be3 f2 Qf7 f3 Qf6 Nf5 Rg2 Ng3 Kg4 Nf5 Kh5 g4 Kg6 g3 Rg1 g2 Qfh4 Ng3 Q4h2 Rd8 Kf7 Rd7+ Kf8 Qd4 Nd2 f1R Qh4 Re1 Nf1 f2 Qf4 Re7 Qf6 Re6 d7+ Kb7 d8N+ Kc8 d6 Qc5 Nd2 f1R Nc6 Rf4 Qf7 Rg4 Nf1 Rg7 Qf2 Rd7 Bg4 Re2 Bf3 Rd2 Bg4 Rde7 Be2 Rd5 d7+ Kb7 d8B Kc8 Rg4 Red7+ Be7 Qd4 Rg5 Qg4 Ba3 Qd4 Qh5 Qg4 Rh1 g1R Rh4 Qd4 Re4 Rg2 Bf4 Rg1 Qh1 Rg2 Qe1 Qg1 Be3 Nh5 Rd4 Rg4 Qf2 Ng3 Re4
1K2b3/2nBNnp1/q4N1b/1R3B2/2kr1n2/N1p1nPRQ/P1N2B2/n2R3Q b - - 0 1 legal: proof: c4 b5 b4 a5 e4 d5 g4 h5 gxh5 f5 exf5 axb4 d4 c5 cxd5 c4 Bd3 Ra7 Be2 Rc7 Bf1 Rc5 dxc5 Rh7 Ne2 Rh6 Ng1 Rh8 Kd2 Kd7 Ke3 e5 Ke4 b3 h4 c3 c6+ Kd6 f3 Kc5 c7 b2 h6 b4 h5 b3 f6 Bd6 h7 Qe7 f7 Bg4 f8N Bc8 h6 Na6 Ne2 Qf7 Nd7+ Kc4 Rh5 Kb4 Nd4 Qe6 Bh3 Kc4 Nf6 Bd7 c8B Nc7 Qh1 Be8 Be3 Ba3 Bg1 Qa6 d6 Bc5 Nc2 Be3 Kf5 e4 Ke5 Bc1 d7 e3 d8R e2 Ba7 e1N Bcf5 Ng2 Rd1 Nf4 Bf2 Qc8 Nd2+ Kb5 Kd6 b1N Bg6+ Nfd5 Rg1 b2 Rg2 Na8 Nb3 Kc4 Bd7 Nd2 Rg3 b1N Re5 Nf1 Bgf5 Nbd2 Rb1 Ndb6 Rb5 Qa6 Kc6 Nc7 Ra1 Qa5 Kb7 Qa6+ Kb8 Nbd5 Rb1 Ba3 Rd1 Bc1 Nc5 Nb3 Nce4 Bd2 Nb4 Be3 Nd2+ Kd4 Nb1+ Kc4 Nc2 Na1 Bh3 Bf4 Bhf5 Nfe3 Nd4 Nge7 Nc2 Nc8 Qe1 Bh5 Qh1 Re8 h8N Re4 h7 Rd4 Ng6 Nd6 Ne7 Be8 h8Q Nf7 Q8h2 Bh6 Qh3 Nf4 Nba3+
5RN1/3rQp2/PQb4n/n1Np2R1/n3q1PK/R4B1B/1Q2Nk2/n3r1nR b - - 0 1 legal: proof: d4 e5 b4 a5 bxa5 c5 dxc5 g5 f4 Nc6 fxe5 Be7 Bf4 gxf4 g4 Bh4+ Kd2 Bg3 hxg3 Nb8 Ke1 Qc7 Qd2 Qb6 Qd1 Qd8 Kf2 Ke7 c4 Ke6 e4 b5 a4 h5 g5 d6 a6 b4 a5 b3 g4 f3 Kg3 f2 a7 b2 g6 Rh7 a6 Qf6 g7 Bb7 c6 Ne7 g8N Qf5 c7 Nbc6 c8R Na5 c5 Bc6 Nd2 b1N Ne2 Nc3 Nb3 Na4 Rf8 Rd8 a8B Rd7 Bh3 f1N+ Kh4 Ne3 Qb1 Nc2 Ra3 Na1 Qb2 Rh6 Bb7 Rf6 Ba8 Qg6 Bb7 Rf1 Ba8 Re1 Bb7 Bd5 c6 Qh7 c7 Bc6 c8Q Nf5+ Kg5 h4 Qc7 Nh6 Qb6 Qh8 Bf1 h3 Kh4 h2 Bh3 Nc5 Nf6 Na4 Nc5+ Ke7 e6 Qh7 e5 Qe4 Rg1 h1N Ba8 Ng3 Rh1 Nh5 Rg8 Ng3 Rg5 Kf8 Ng8 Ke8 Nc3 Ne2 e7 Ng1 Ne2 Rc7 Nb3 Kd7 e8R Rb7 Rc8 Ke6 Rf8 Kd5 Nc5 Rd7 e6+ Kc4 Nc3 Kd4 e7 Ke3 e8Q Kf3 Ne2+ Kf2 Qe7 Bb5 Bd5 Bc6 Bc4 d5 Bd3 Qh7 Be4 Qf5 Beg2 Qe4 Bf3
1n2N2n/1K2R1BN/QR2Nn2/1q3Q1p/4nb1N/4r1PR/2Pp3Q/rr1k1B2 b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 f4 f5 fxg5 b5 axb5 Ba6 exf5 Bb7 h3 Be4 Ke2 Bf3+ Ke1 Bg4 hxg4 Qc8 Qd3 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 d5 b4 a5 f6 Kg6 b6 h5 b7 e5 b5 a4 f7 a3 b6 d3 Nd2 a2 Nb3 d2 Rh3 d4 Ke4 d3 Nf3 Nc6 b8Q Rh6 b7 Qa5 Qe2 d1R Bb2 d2 Nc5 Qb5 Kd5 e4 Qh2 e3 b8R Rb1 g3 Bd6 f8Q Bf4 Rb6 Ra3 Qc4 e2 Bg7 e1N Qa4 Rc3 Qa6 Ng2 Qfc8 Re3 Nh4+ Kh7 Qe6 Nb8 Qe5 Nf6+ Kd6 Rg6 Kc7 Rh6 Ne6 Rg6 Kb7 Rh6 Nf3 Nh4 Qf5+ Ng6 Nh4 Be5 Qd3 Bf4 Qd7 Nh8 g6+ Kg8 g5 Rh7 Bf8 Re7 g7 Kh7 g6+ Kh6 Nd8 Kg5 g8N Ree1 g7 R7e3 Ne6+ Kg4 Qd5 Rb4 Rb1 a1N Rb3 Ra4 Rc3 Ra5 Rc7 Rb1 Re7 Nb3 Ng2 Nh7 Qf5+ Kf3 Nf6 Raa1 g8N Kf2 Nh4+ Ke1 Ne8 Kd1 Bg7 Nc5+ Ka8 Ne4 Kb7 Qd3 Ngf6 Qb5 Nd7 Nhf6 Ndf8 Rbb3 Nh7 Rb2 Kc8 Rbb1 Kb7
3bNQQB/2N1R3/n7/pBk1b1n1/R1n1N2K/nPbRqP1p/1rB3N1/8 b - - 0 1 legal: proof: c4 g5 e4 b5 a4 a5 axb5 f5 f3 d5 cxd5 fxe4 g3 g4 h3 Ra6 Nc3 Rf6 Nb1 Rf4 gxf4 g3 Ra4 Bg7 Ra1 Bg4 hxg4 Bf8 d4 Kd7 b6 Kd6 b7 e5 g5 h5 g6 c5 b3 e3 f5 h4 f6 e4 f7 e2 g7 h3 Bb2 c4 Nd2 c3 Ra4 g2 Kf2 e1N Kg3 c2 Bb5 c1B Ne2 g1N Nf4 e3 Ng2 Nf6 g8B e2 Bh7 Qc8 Bc2 Rg8+ Kh4 Na6 b8N Qc5 Nd7 Be7 f8Q Ng4+ Nf6 Ne3 Ba1 Nc4 Ne4+ Kc7 d6+ Kb6 d7 Bd8 d5 Qe3 d6 Bb2 Qd2 Be5 Qd5 Rg5 Qdg8 Rg3 Bd1 Nc2 Bb2 Rg5 Ne8 N2a3 Bc2 e1B+ Ng3 Bf4 Bh8 Bc3 Ne4 Ne2 Re1 Nd4 Re2 Ne6 Re1 Bdf6 d8N B4e5 d7 Rg4+ Kh5 Ng5 Ne6 Be7 d8R B7f6 Rd3 Bd8 N6c7 Rg3 Nf4 Rg2 Kh4 Rd2 Ng2 Re2 Rd7 Rd2 Re7 Rf2 Rd1 Re2 N4d6 Kc5 Rd3 Rd2 Bd1 Ra2 Bc2 Rb2 Ne4+
2NbBn2/2n3pR/b1rB4/N1b1Q3/1QR4Q/B2NnpK1/1Pk1P2n/q3Q3 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b5 a4 a5 axb5 Ra6 bxa6 Bd6 Ra4 Be7 Ra1 Bf8 Kf2 Kd7 h4 Kd6 d4 f5 a7 c5 a8N c4 h6 a4 h5 a3 h7 c3 h6 a2 Bh3 f3 Nd2 f4 Bd7 c2 Nb3 Ba6 Qe1 Qe7 Be8 Bc4 Nb6 Qd7 Nh3 Qa4 Na5 Nf6 Be3 Bd3 Rc1 a1N Bd2 Nfd7 Bb4+ Nc5 Rh2 Nd7 Rh1 Be7 Rh2 Rf8 h8Q Rf6 h7 Ba6 Qf8 Re6 Qf5 Nf8 Qg4 Qa2 Ba3 Rg6 Qh5 Re6 h8Q Bf6 Kg1 f2+ Kg2 f1N Qe5+ Ke7 Nf2 f3+ Kh3 Bh4 Nd3 Bg5 Qh5 Be3 Qf4 Rc6 d6+ Ke6 Nc8 Qb1 Qhg4+ Kd5 d7 Nce6 d8B Nc7 Bde7 Qa2 Kh4 Bg1 Rh3 Nh2 Kg3 Qb1 Rh7 Qa2 Nb7 Kc4 d5+ Kb3 d6 Ba7 d7 Bc5 d8Q Qb1 Rd1 c1B Bd6 Nc2 Qe5 Bg5 Rc1 Qa1 Qde7 Ne3 Qgb4+ Ka2 Rc4 Bf6 Qf2 Kb1 Na5 Bg5 Qd4 Bf6 Qh4 Bg5 Qe5 Bd8 Re4 Kc2 Qfe1 Bf6 Rg4 Bd8 Rc4+
3BR1NK/p1P1qQ2/r1Rbb2N/B1B1Pnp1/1r3k2/r2rR3/1Q3R2/4b1N1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 d4 c5 dxc5 f5 a4 f4 axb5 Nc6 Bg2 Nd4 Bh3 Nf5 gxf5 Be7 Bg4 hxg4 Kd2 Bd6 Ke1 Bf8 Kf2 Ke7 b4 g5 h4 d5 e4 d4 c4 d3 b6 g3+ Kf3 d2 Kg4 f3 c6 g2 e6 Kf6 b7 Ke5 b8B+ Bd6 e7 f2 e8R+ Ne7 h5 f1R c5 Re1 b5 Re3 c7 Rh6 c6 Re6 f6 Ra3 h6 Rf3 Kh5 Kf4 e5 Rc3 h7 Rf3 Kh6 Bb7 Kg7 Ng6 h8N Re3 c8R Re7+ f7 Qd7 b6 Nf8 Qh5 d1R Ra3 Qe6 Bc7 Ba6 b7 Bc5 b8Q Kg3 Qb2 Rb8 Bd8 Qd6 Rh2 Re6 Bd2 Rb4 Nc3 Bc4 Nd5 Ng6 f8B Qe7+ Nf7 Nh4 Nf6 Kf4 Ng8 Bd6 Kh8 Nf5 Nfh6 Ra1 Be1 Rd3 Qf7 Rg6 Rb3 Ra3 Rc3 Be6 Rc7 Rd1 Re3 Rdd3 Bd2 Rbb3 Ba5 Rb4 Rb7 Rf6 c7 Rg6 Rb6 Rf6 Nf3 g1B Rc6 Bf2 Ng1 Be1 Rc3 Bc5 Rhh3 Bd5 Rh5 Ra6 Rhh3 Qd7 Rh2 Be7 Rc6 Be6 Bg7 Qd6 Bf6 Bf8 Bfe7 Qd7 Bc5 Bd6 Rhe2 Qe7 Rf2+
K2BNQ1r/n2b4/2R4R/P1N1qk2/RP1Q3r/1q1p4/1rpNB3/1rN1b2Q b - - 0 1 legal: proof: g4 a5 e4 f5 exf5 h5 gxh5 Rh7 b4 axb4 c3 Rh8 Qe2 c5 Qg4 b5 Qd1 b3 d4 b4 cxb4 c4 Nc3 Na6 Nb1 Nc5 dxc5 Ra4 Bg5 Ra3 Bc1 Ra8 Kd2 Kf7 Kc3 Kf6 Kd4 e5+ Kd5 g5 a4 d6 Kc6 b2 f4 c3 h4 e4 h6 d5 h5 c2 h7 g4 a5 e3 h6 g3 Ne2 d4 Nd2 b1Q Ra4 Bd7+ Kb7 g2 c6 g1R c7 d3 c8R Be7 Rc6+ Kf7 f6 Kg6 f7+ Kf5 f8N Rg2 Ne6 Qf8 Nc5 Kg4 f5 Bh4 f6 Qe8 f7 Rg1 f8Q Ne7 Bb2 Bf2 Nc1+ e2 Bf6 Nc8 Bd8 Qb3 Rh2 Ra6 Kb8 Na7 Ka8 Qe5 Rh5 Rg8 h8N Be1 Nf7 Rh8 h7 Kf4 Rhh6 Kf5 Rc7 Rd6 Rc6 Rd4 Nd6+ Kg4 N6e4 Rh1 Nf6+ Kf5 Nb7 Rdh4 Nc5 Bf2 Qe1 Bg3 Qd1 e1R Be2 Reg1 Qf1+ Bf2 Qg2 Rd1 Qg1 Be1 Qd4 Rf1 Na2 Rb1 Nc1 Rg8 h8Q Rb2 Qhg7 Rh8 Qg2 Rg1 Qh1 Bg3 Na2 Rgb1 Nc1 Be1 Ne8+
2q1k3/2Nn1R2/RB2qpNN/2PnQ3/1B2Q2K/pr1P4/BQn3N1/4r1bn b - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 d5 a4 b5 axb5 e5 b3 d4 c3 Be6 cxd4 Bc4 d5 exf4 Ra6 Bd3 Ra5 c4 Ra4 c3 Ra1 Bc4 bxc4 Qe7 Kf2 Qd6 Ke1 Qd8 Kf2 g5 e4 a5 h4 g4 h6 a4 c5 c2 d6 f6 d7+ Ke7 e5 f3 Kg3 f2 b6 Bg7 e6 Bf8 h7 Bh6 h5 Be3 b7 Qc8 d8B+ Kf8 h6 Nc6 b8Q Qb7 e7+ Ke8 Nh3 Nd4 Na3 Kd7 Qe1 Ke8 Nb5 Qc7+ Kh4 g3 Ba3 c1N Nf4 g2 Bc4 f1N Ba2 g1Q Bb4 Ng3 Ng2 Qc8 Bb6 Nd3 Qe5 Bf2 Qb1 Rb8 Qb2 Qe1 Rh3 Nc2 Nc7+ Kd7 Qe4 Ne5 d3 Bg1 Rh2 Qe3 Rh3 Nh1 Rg3 Qc1 Rg7 Qe3 Rf7 Qe2 e8N+ Kd8 Nd6 Nd7 Nf5 Ne7 Qee5 Rf8 h8N Nd5 h7 Re8 Ng6 Qe3 h8Q a3 Nh6 Rb7 Qh7 Re6 Rf1 Qe4+ Rf4 Qf5 Qd6 Re1 Qde5 Qe6 Rd4 Nf4 Rd6 Nd5 Ne7 Rb8 Qhe4 Rb7 Ng6 Rb8 B6a5 Rb5 Ra6 Rb8 Bc3 Rb5 Bb6 Rb3 Nb5+ Ke8 Bd2 Nd4 Bb4 Nc2 Nc7+
1Nrq1B2/2q1Q3/1qPRb1pR/B1Q1RR1N/K3N3/2Pq1kB1/2n1p1n1/7r b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 f5 g4 e6 gxf5 Qf6 e4 Ke7 f4 Qg6 Be2 Qe8 Bf3 Qd8 Bg4 hxg4 e5 Ke8 Kf2 Be7 Ke1 Bf6 exf6 Rh7 Nd2 Rh5 Nb1 Rh8 Kd2 Kf7 Kc3 a5 Kb3 d5 h4 e5 b6 g3 h5 e4 b7 d4 h6 e3 h7 g2 c6 Na6 b8B d3 Ne2 g1Q Rh5 d2 Qe1 d1Q Nbc3 g6 Ng3 Q1d6 Bd2 Nc7 Rd1 Ke8 f7+ Ke7 f8R Ra6 f6+ Ke6 f7 Nh6 f5+ Ke5 f6+ Kf4 Re8 Ra8 f8Q Qd4 f7 Kf3 Rf5+ Qf4 Ka3 a4 b4 Na6 Re6 Qf1 Qc5 Ng4 f8B Bd7 Bc7 Rc8 Ba5 Qc4 Bc1 Qf1 Rd4 Qd3 Ree4 Rg8 h8R Rg7 Re6 Rh7 Re8 Rh4 Nh5 Rh1 Qh4 e2 Rh6 Ne3 Re7 Qd2 Ne4 Qd3+ c3 Ng2 b5 Nb4 b6 Nc2+ Kb2 a3+ Kb3 a2 Ka4 Nb4 Bd2 Nc2 Be1 Na3 Rdd5 a1Q Bg3 Qb2 Re6 Nc2 Qhe7 Kg4 Ref6 Qfc7 Rfd6 Be6 Rde5 Qb1 b7 Qb2 b8N Qbb6 Bf4 Kf3 Bg3+
1N3B2/1Rq2Q1P/1kBnRN2/4bb1B/1K3B2/1Np1bQnP/Q4p2/1br4q b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Rh6 f4 exf4 axb5 a4 Nc3 Ra7 Nb1 Ra5 bxa5 Rh8 d4 Kd7 Kd2 g5 Kc3 f5 e4 c5 h3 Kc7 b6+ Kb7 a6+ Ka8 h6 c4 d6 a3 h7 a2 d5 f3 a7 Kb7 a8B+ Ka6 d7 f2 b7 g4 e5 g3 d6 g2 e6 f4 e7 f3 e8Q Bh6 Be2 f1B Kb4 f2 Bh5 c3 Ne2 g1B Qf7 Bh2 Ng3 Bd3 Qdf3 Kb6 Re1 Ne7 Ne4 Qc7 d8B Nd7 Nf6 Nf5 Be7 Re8 b8N Ne5 d7 Nc4 d8Q B6f4 Qdd5 Ncd6 Bf8 Bc2 Rd1 Re1 Nd2 Rh1 Re1 Bd3 Rb1 a1Q Bc6 Bg5 Re7 Be5 Rb2 Ng3 Ra2 Rg1 Ra7 Bcf5 Re6 Rf1 Qa2 Bc2 Bb2 Qd1 Nb3 Bb1 Bc1 Qd5 Qg4 Qh1 Qf3 Bgf4 Bd2 Rc1 Be3+ Bd4 Bd2 Bfe5 Bf4 Be3 Rb7+
n1q1qNB1/k5pR/4npq1/1BP1B1NP/3qR3/Q1B5/KRrr3b/1Q3N2 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 b6 h5 gxh5 a5 b3 a4 Qd3 a3 Qd1 Bb7 Bg5 Bc6 Bc1 Ba4 bxa4 Bc5 Bg2 Be7 Bf1 Bf8 Kd2 d5 h4 Kd7 e4 Kc8 c4 Kb7 Kc2 d3+ Kb3 f6 h6 a2 h7 d2 a5 d4 e6 d3 c5 Nc6 e5 Nb8 a6+ Kc6 a7 Kb7 e7 Qd6 e8B Ka6 b7 Qd4 e6 Qe3 e7 Nh6 Bb2 Nd7 b8B Nf7 Nh3 Nb6 Ng5 Nd8 Bf7 Ne6 e8R Bd6 Bc3 Bh2 Bbe5 Rd8 Bg8 Na8 Qc2 d1Q Nd2 Qde1 Rb1 a1Q Rb2 Qe4 Qb1 Qg6 Be2 Kb7 Nf1 d2 Bb5 Qa6 Re7+ Rd7 Re8 Qc6 Ka2 d1Q Re7 Qd4 Re8 Nb6 Re7 Qc8 Re8 Rd6 a8Q+ Kc7 Qa3 Kb7 Rg1 Qee4 h5 Na8 Rg4 Qec6 Rd8 Qce8 Re4 Ra6 Bf7 Rf8 h8N Ka7 Bg8 Rf7 Rg4 Rd7 Re4 Qgf7 Ng6 Rd5 Nf8 Qg6 Bd2 Ra4 Ba5 Rc4 Bb4+ Qa6 Bd2 Rc2 Ba5 Qc8 Be1+ Qa4 B1c3 Rdd2 Nfh7 Qc7 Bf7 Qec6 Rh8 Qe8 Nf8 Qcb8 Rh7 Qbc8 Ba6 Qb4 Bg8 Qd4 Bb5+
2R2r2/QB2P3/1NBQ1nR1/2q1N2b/Q2Rb1p1/Bb2pqRb/1KP5/3k3r b - - 0 1 legal: proof: d4 a5 g4 d5 f4 h5 gxh5 c5 b4 e5 e3 e4 Bg2 Bd6 Bf1 Be5 fxe5 axb4 dxc5 d4 Qe2 d3 Qf3 Nc6 Qd1 Nd4 exd4 Kd7 Qe2 Ke7 Qd1 Ke8 Kd2 Ke7 a4 Ke6 h4 Kf5 e6 Kf4 d5 g5 e7 b5 h6 f5 c6 g4 c7 b3 Kc3+ e3 h7 d2 d6 b2 d7 Rb8 a5 Nh6 h5 Qe8 d8R Ke4 a6 f4 a7 f3 a8B+ Kf4 Bc6 f2 Rh3 Bb7 c8R Ng8 h6 Nf6 Ra6 Qh5 Na3 b1B Nf3 b4+ Kb2 b3 Bg2 f1B Ne5 Ba2 Rg3 Qg5 Bgd5 Bh3 Nac4 Rf8 h8Q Qh5 Kc3 b2 h7 b1B Nb6 Bb3 Ba3 B1a2 Kb2 Ba8 Qa1 d1Q Be4 Qh1 Rd4 Qf3 Qg7 Bf7 h8Q Bab3 Qg6 Qg5 Qgh6 Bh5 Qg8 Rb7 Qc4 Rd7 Qa4 Rd6 Rc4 Rd1 Rd4 Rh1 Qa2 Nd5 Qd6 Nf6 Bb5 Bad5 Bc6 Qf5 Bd3+ Be4 Bc4 Qd7 B4d5 Qc7 Bb7 Qc5 Bdc6 Qf2 Rg1 Qf1 Nd3+ Kf3 Rg3+ Ke2 Ra5 Qc4 Rg5 Kd1 Rg6 Qf3 Qa7 Qc5 Qa4 Bf7 Qa7 Be6 Qb3 B6d5 Qba4 Bb3 Ne5+
2K2N1N/3BP2p/5r1R/2bnNq2/Br1B1kPR/1Q1q4/1rnN1p2/R2rQ3 b - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 a5 f4 g5 hxg5 e5 a4 Bd7 axb5 exf4 b3 a4 b6 a3 Nh3 Nh6 Ng1 Ba4 bxa4 Ng8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 Kf5 f6 d4 a2 g4 c4 e4 f3 a5 f2 a6 c3 g6 c2 g7 Qe7 b7 Qf7 e5+ Kd7 e6+ Kd6 e7 Nc6 b8R Ra7 Rb6 Qe8 Nf3 Qd8 Bb2 c1R Nbd2 Qc7 Rh4 Qb8 Qe1 Rc2 Bb5 f1Q Ba4 Rb7 a7 Qd8 a8B Qb5 Bc3 Rb2 Ne5 Qa5 Ra6 R7b4 Bb7 Qb5 Bc8 Qda5 Bd7 Qd3+ Kf4 f5 Rb6 Nf6 g8Q Nh5+ Kg5 Nf4 Kf6 Bg7+ Kf7 Ne2 Ke8 f4 Ra6 f3 Rb6 f2 Ra6 Kc7 d6+ Kb8 d5 Ncd4 Rc6 Nc2 Bd4 Nc3 Ra6 Qab5 Kd8 Bh6 Rc6 Be3 Ra6 Qf5 Rc6 Qbd3 Rb6+ Ka8 Kc8 Ka7 Be6 Ka8 d7 Ka7 d6 Nd5 d8N Ka8 Rd1 a1R d7 Ka7 Qf7 Rf8 Qg8 Rf6 Ndf7 Rab1 d8N Rc1 Bed7 Ra1 Bc3 Bc5 Ne6 Rc1 Nf8 Ka8 Qe3 Ka7 Rdh1 Rd1 Bd4 Ka8 Nh8 Ka7 Re6 Ka8 Kd8 Kb7 Qe1 Kb8 Ra6 Kb7 Rh6 Kb8 R1h4 Kb7 Ke8 Kc7 Ra8 Kd6 Kd8 Nf4 Qc4 Nd5 Qb3 Nf4 Kc8 Qb5 Nef3 Qbd3 Bb5 Nd5 Ra1 Ba7 Nh2 Bb6 Ba4 Bc5 Be3 Ke5 Bd4+ Kf4 Nhf3 Qg6 Ne5 Qg5 Qf1 Qgf5 Qe1
N1q1qRB1/K1BP3p/1R1q4/1qNR1B1n/2rPpn2/1N4k1/Q6r/Q2b2R1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 gxf4 h4 Ba6 g5 Bh6 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 a5 b4 e6 f6 c6 g7 a4 g6 a3 f7 a2 f8R f3 b6 f2 b7 Qe7 b5 Nd7 b8N Qf7 b6 Ra6 b7 Nc5 Bh3 f1Q Ne2 Rb6 Nd7 Rb2 b8R Qe8 Nb6 Nd3 Bf5 Nf4 Nec3 Qb5 Rg1 Nf6 g8Q N6h5 g7 Bd7 d3 Rh2 Nd2 Bc8 Rb1 a1Q Na8 Qa3 Rb6 Ba6 Nb3 e5+ Ke3 e4 Kd4 Bc8 Na4 Bd7 Nac5 Be6 Bg6 Bg4 Bf5 Be2 Qe1 Bd1 Ra1 Qaa6 Ra5 Qac8 Qf7 Qce6 g8B Qh6 Kc3 Ke5 d6 Qf6 d7 Qd6 Ne6 c5 Qf1 c4 Nec5 Qa6 Kb4 c3 Ba3 Qac8 Kb5 c2 Qe1 Qcb8 Ka6 c1Q Qc4 Qbc8+ Ka7 Qb2 Qc2 Qb1 Qa2 Qb2 Nd4 Qb5 Ndb3 Nh3 Bb2+ Kf4 Be5+ Kf3 d4 N3f4 Bd5 Rg8 Bc4 Rgg2 Bg8 Rc2 Qc3+ Kf2 Qca1 Kf3 Bf6 Rc4 Bd8 Ng2 Bc7 Kg3 Na6 Qb4 Rd5 Qb5 Rf1 Ngf4 Nac5 Bg4 Re1 Bd1 Rg1+
1b2B2N/Q2p1b1K/2qPQ1Bp/nP1r1BR1/4B1Q1/N7/N2q1k1b/R2br3 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 exf5 b4 f6 b3 f3 b2 f4 Qb6 f5 Qb5 Na3 b1Q axb5 Qa2 Nb1 Qa5 Ke2 Qc7 Ke1 Qd8 g4 Bg7 h4 Bh6 h5 Bf8 Bb2 Nc6 Be5 Nb8 Bh2 Nc6 Bf4 gxf4 g5 Ne5 Bc4 Ng6 hxg6 Rb8 Bf1 Ra8 Ke2 a5 Kd3 e5 Ke4 f3 d4 f2 c4 a4 c6 a3 c7 a2 f7+ Ke7 f6+ Kd6 Kf5 h6 d5 Kc5 d6 e4 g7 e3 Kg6 e2 Bh3 e1Q Bf5 f1B Ne2 Ra3 Rg1 Rc3 Nc1 Qd2 Qg4 Qd1 Na3 Be7 f8N Qc2 f7 Ba6 c8Q+ Qc7 Qb8 Qd2 Qa7+ Qb6 Rg3 Rd3 Rg2 Bb7 Rg3 Nf6 g8B Bd5 Bh7 Be2 Kg7 Bd8 Ng6 Re8 f8Q Bef3 Nh8 Bd1 g6 Ng8 Qf7 Re1 Qe6 Ne7 Rg2 Nc6 Kg8 Rh3 g7 Rd3 Bhg6 Bc7 Kh7 Na5 g8B Bb8 B8f7 Rd4 Be8 Rd3 Qee4 Bf7 Qe6 Rd5 Rg1 Qf4 Rg3 Kd4 c5 Qa6 c6+ Qb6 Rb1 a1B c7 Qc5 c8B Bc3 Qf3 Qd2 Na2 Bb2 Ra1 Bc1 Qa8 Qc6 Rg5 Bb2 Bb7 Bc1 Be4 Bb2 Qg2 Ke3 Qgg4 Be5 Bef5 Kf2 Qa7+ Rc5 Nc1 Bh2 Ba8 Qc8 Bae4 Qc6 Qa8 Re5 Na2 Rd5 Qa7+
N1Nk1n1Q/PR4n1/2Npnr2/2b1n1BR/1r3B2/N3Q2K/R3PpB1/1n4b1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 c5 dxc5 e5 fxe5 f4 h3 g5 Na3 b6 Nb1 Qf6 Be3 Bb7 Bd2 Bf3 Bc1 Qf5 gxf5 g4 Be3 g3 Bc1 Bg4 hxg4 Kd8 Rh3 Ke7 Rh1 Ke8 c4 h5 a4 h4 e6 g2 Kf2 h3 e7 f3 Kg3 f2 g5 d6 f6 b3 f7+ Kd7 e8N b2 c6+ Kd8 a5 b5 a6 h2 c7+ Kc8 c5 b4 a7 b3 g6 Nd7 g7 Rb8 Qd3 Ne7 g8R Bh6 f8B Ne5 Rg7 Be3 Nf3 Rh6 Nd4 Rf6 Kh3 Rb4 Nc6 N7g6 Be7 Nf8 Na3 b1N Ra2 b2 Rf7 Bd4 Bf4 Nd2 Qe3 b1N Rg7 Kd7 c8N Ne4 Nc7 Ng5+ Kh4 Ra4 Na8 Nge6 Kh3 Rb4 Rh7 Ke8 Rh5 Kd7 Rg1 h1N Bd8 Rf7 Bdg5 Ng3 Rh1 g1B Bg2 Rf6 Rh7+ Ke8 Rb7 Nf5 Na5 Nfd7 c6 Ndf8 c7 Nfg7 Nc6 Ng4 N8e7 Ne5 c8Q+ Nd8 Qb8 Bc5 Nc8 Nde6 Qc7 Nh5 Qh7 Nhg7 Qh8 Rb5 Kg3 Rb2 Rh5 Rb4 Rb8 Kd7 Kh3 Ke8 Rb5 Kd7 Rb7+ Ke8 Nd4 Kd8 Nc6+
1Q3B1K/1NRn2pp/1P3Pr1/7b/b3NrBr/k1n2N2/1R2Q1BR/2R3rb b - - 0 1 illegal: No proof kernel
2Kn2B1/4BnP1/1k3b1q/p1Q2R1N/P5qQ/b2pb2R/Qq6/1R1BnQN1 b - - 0 1 legal: proof: g4 h5 c4 g5 f4 c5 b4 f5 bxc5 b5 e4 fxe4 d4 a5 c6 Ra6 c7 Nf6 c5 Kf7 f5 Bb7 d5 Rd6 h3 Bc6 dxc6 Ng8 f6 Ke8 Bb2 Rd5 Bc1 Rf5 gxf5 g4 Bc4 g3 Bf1 Rh7 Bc4 Rg7 Bf1 Rg4 hxg4 Bh6 Qd3 Bg7 Qd1 Bf8 Ke2 d5 Ke3 e5 c8Q g2 a4 b4 g5 b3 g6 b2 g7 h4 f7+ Ke7 c7 h3 c6 Kd6 f6 Kc5 Qb3 h2 Bc4 Be7 f8Q Bd6 f7 Be7 Qa2 Nh6 Qg4 Kb6 c8Q Bf6 c7 Nc6 Qh4 Qd7 Nd2 b1Q Ba3 Nd8 Nf1 Qg4 Ng3 Qb4 Rb1 d4+ Kf2 d3 Ke3 Qb3 Nh5 Qb2 Qf5 Nb7 Q8c8 Nd8 f8R Nhf7 Qff2 Nb7 Be7 Nbd8 Nh3 g1B Qf5 Nd6 Bg8 N6f7 c8B Qb5 Kd2+ e3+ Kc3 e4+ Qe5 Qb3+ Kd4 e2 Bd7 Qb2+ Kd5+ e3 Qf1 Bf2 Ng1 e1B Qc3 e2 Qc5+ Ka6 Bf5 Be3 Be4 Bg3 Bf3 e1N Bd1 Bd6 Qd4 Ba3 Qc5 Ne6 Kc6 Ned8+ Kc7 Qge2 Nf3 Qg2 Kc8 Qge2 Rg1 h1Q Rg3 Qhh2 Ng1 Qg4+ Qcf5 Kb6 Rh3 Qgg2 Qfg5 Qf4 Qf5 Qh6 Qc5+ Ka6 Re8 Bf2 Bd6 Be3 Re5 Qe4 Rf5 Qg4 Qc1 Ka7 Be7 Kb6 Qc5+
2bQB1BB/6P1/N1p2RK1/Q1qb3n/Nnbnp1R1/3kq3/2P5/N1R1B1q1 b - - 0 1 illegal: Other
qbQNk1nn/1PP1Q3/4pR1B/1R6/1b1BbR1R/2qQ3N/2qpB3/6Kn b - - 0 1 legal: proof: g4 h5 a4 c5 e4 a5 h4 f5 gxf5 b5 axb5 g5 f4 g4 d4 cxd4 f6 Rh7 e5 Rg7 f5 Rg5 hxg5 Qc7 Ke2 Kd8 Kf2 Ra6 f7 Rf6 exf6 Qb6 Bd3 Kc7 Ke1 Kd6 Bf1 Qd8 Kf2 a4 b4 d3 c4 d2 g6 a3 g7 a2 c5+ Kc7 b6+ Kc6 b5+ Kb7 c6+ Ka8 c7 Kb7 Na3 d5 Nc4 e6 Nh3 d4 Bb2 d3 Kg1 h4 Ne5 g3 Be2 g2 Nc6 Bb4 f8Q Nd7 f7 Ne5 f6 Ng6 Bd4 Nh8 Qe7 Qf8 Rc1 a1Q Rc4 Qc3 Qb3 Bd7 Nd8+ Kc8 Qc2 Qe8 f8R Bc6 f7 Be4 Qb1 Qc6 Qf1 d1Q Rh2 Nf6 g8Q Qdc2 Qf3 d2 Qd3 Qd7 Re8 Qd5 f8B Qa8 Bh6 Bg6 Rf8 Be4 Qgg3 Ng8 Rf6 Nf7 Qg5 Nh8 Qf8 Kd7 b7 Q3b3 b8R Qbc3 Qfc5 Ke8 b6 Qc6 Qgd5 Q6a4 Qb7 Qa8 Kf2 g1B+ Kf1 Bg6 Qc8 Bf5 Rf2 Be4 R2f4 Be3 Nf2 h3 Kg1 Ba3 Qg5 Bc5 Rb4 Be7 Rb5 Bb4 b7 h2+ Kf1 h1N Nh3 Bf2 Rh4 Bg3 Kg1 Bgd6 Rff4 Bdc5 Rf6 Qa6 Ra8 Ba7 Rhf4 Bb8 Qg7 Qaa3 Ra4 Qaa1+ Rf1 Bf3 Be5 Bd6 Rh4 Be4 Bd4 Qa8 R1f4 Bb4 Qe7+
2R3bB/b2P4/2pRB1rq/R1PNq2R/K7/1QBn1N1b/4p1k1/2Nb2Qb b - - 0 1 legal: proof: g4 b5 e4 g5 h4 a5 a4 d5 axb5 a4 exd5 Ra5 f4 gxf4 b4 Na6 bxa5 Bg7 g5 Nc5 g6 Ne6 Rh2 Ng5 hxg5 Bh6 Rh1 Bf8 c4 Kd7 d4 Kd6 Kd2 h5 Kc3 e5 Kb4 f5 b6 a3 g7 a2 a6 e4 b7 c6 b8N f3 a7 e3 a8R h4 g6 h3 Ne2 f2 Ka4 h2 Nd2 f4 Nf3 Be6 Qb3 Qh4 Nd7 Qh6 Nf6 Ne7 Ra5 Rg8 Bh3 f1B Bb2 Bg2 Bg4 Bh3 Nc1 Bf7 Rd1 h1B Be6 Bg4 Bc3 Bh3 Rb1 a1Q+ Qa2 Bg4 Rbb5 Qb2 Qb3 Bh3 Nh2 f3 Rd2 f2 Nf3 f1B Rd3 Rh8 g8Q Be2 g7 Bd1 Rc5 e2 Rd2 Ng6 Rcb5 Kc7 d6+ Kd8 d5 Nf4 d7 Kc7 d8B+ Kd6 Bb6 Nd3 Bbd4 Be7 Rb8 Bd8 Rc8 Bb6 c5+ Ke7 Qh7 Ba7 Qg6 Bg8 Qg1 Rh7 Bg4 Kf7 d6+ Kg6 Nd5 Rh8 Be6+ Kh5 d7 Rh7 Ne1 Kh4 Be5 B3g2 Bed4 Kg3 Nf3 Rh8 Rf8 Rh7 Rf5 Rh8 Rh5 Rh7 Qe3 Bh3 Be5+ Kg2 Bed4 Bf7 g8R+ Rg7 Rc8 Rg6 Bh8 Bg8 Nc7 Nf2 Rd6 Nd3 Nd5 Qg5 Bd2 Qbe5 Bc3 Qh6 Qg1+
R3Q2b/2q1BP2/pBPQ4/2N1Qq1k/p2n3b/rN3B1q/1K3bb1/1BR3N1 b - - 0 1 legal: proof: d4 f5 a4 c5 dxc5 b5 e4 bxa4 exf5 Nh6 g4 Na6 f4 Ng8 f6 Nb8 f5 Qa5+ Qd2 Kd8 f7 Kc7 f6 Qb6 Qd4 Kc6 Qd1 Qd8 h3 g5 Be3 a6 Bd2 Kb7 Bf4 Nc6 Be3 Nd4 Bc1 Nf5 gxf5 g4 h4 Kc6 Bd3 Nh6 Bc4 Rg8 Bf1 Rg5 hxg5 Ng8 Kf2 Rb8 Ke1 Qb6 Bd3 Bb7 Nc3 Bg7 Nb1 Nh6 Bf1 Rh8 Ra3 Bc8 Rh2 Ng8 Rh1 Qd8 Ra1 Bf8 Kd2 Kd5 Kc3+ Ke4 b4 d5 b5 h5 c6 e5 g6 d4+ Kb2 h4 c4 d3 g7 g3 c5 d2 b6 Kf4 b7 Kg5 b8Q g2 c7 e4 c6 e3 Be2 h3 Bf3 Ne7 g8Q+ Bg7 f8N h2 Nd7 e2 Qe8 e1B Nc5 Rh3 Qe2 Qd5 Qe5 Bh4 f7 Bh8 f6+ Nf5 f8B Qd8 Qd6 Nd4 f7 Bf5 c8B Be4 Bf5 Qc7 Bg6 Bd5 Be7+ Kh6 Ne2 g1B Qb5 Be3 Ng1 d1Q Nd2 Qf1 Ndb3 Qd3 Bd2 Qf5 Ba5 Bef2 Rc1 Be4 Bb6 Bd5 Bg4 Bg2 Qe2 Rc3 Qee5 Re3 Bf3 Rc3 Nh3 Rd3 Rhe1 h1Q Ng1 Qhh3 Re4 Qe6 Bf5 Rc3 Rg4 Kh5 Bb1+ Qf5 Rg8+ Qg4 Qed7 Rd3 Ra8 Re3 Bfe4 Qh3 Qe8 Rd3 Na5 Ra3 Nab3 Qb7 Bd5 Qc7 Bf3+
RRQQN1KB/p7/1r1r4/2bBqP2/k2rQQ2/4n2P/BqR1r1Np/6q1 b - - 0 1 legal: proof: e4 d5 a4 b5 axb5 g5 c4 f5 cxd5 fxe4 h3 g4 Ke2 h5 Ra2 h4 Ke1 g3 Ra1 Bg4 Ne2 Nc6 hxg4 h3 Nbc3 h2 Ng1 Nd4 Nb1 Ne2 Ra2 Nf4 Ra1 Nh3 gxh3 Rc8 Ne2 Rb8 Ng1 Ra8 Ke2 Kd7 Ke3 c5 Kf4 e5+ Kf5 g2 Kg6 c4 Kf7 e3 b4 e4 d4 e2 f4 e1Q g5 e3 f5 e2 b6 c3 b7 c2 b8R Qd2 d6 Kc6 g6 e1R d7 Re8 g7 Qc7 b5+ Kd5 b6 Kc6 b7 Qb4 d5+ Kb6 d6 Be7 d8Q Qe4 d7 Qf3 Qd4+ Kc6 Ne2 Kb5 Nd2 g1R Nc4 Rg3 Bb2 c1Q Nf4 Qe1 Rg1 Qfd1 Qe4 Rg2 Ra2 Qc2 Qc8 Rh6 d8Q Rgg6 Ng2 Nf6 g8B Nd5 Bh8 Qb2 Bd3 Kb4 Bb1 Rb6 Nd6+ Kb3 Ra4 Qec1 Rc4 Ne3 Rc2 Qc5 Re1 Qce5 Ba2+ Ka3 Ree2 Qg1 Red2 Bf8 Rd5 Ree6 Ne8 Bc5 Rd7 Rhf6+ Kg7 Red6 Bgd5 Rfe6+ Kg8 Re7 Qf3 Ree6 Rf7 Ka4 Rf8 Qf6 Qf4+ Re4 Qe6 Rd4 Qee4 Qe5 Rc8 Rdc6 b8Q Rd6 Qb7 Rb8 Qbc7 R8b7 Ra8 Rb8 Qcc8 R8b7 Qg3 Re7 Qgf4 Nf1 Rf7 Qf6 Qd3 Re2 Qde4 Ne3 Rb7 Qe5 Rbb8
N1b1rr2/P2p3b/BnQ3kb/2QR4/1N1RpR1K/7N/NQPB2b1/5r1b b - - 0 1 legal: proof: g4 c5 e4 f5 exf5 a5 b4 axb4 d4 g5 dxc5 Ra5 h4 Ra8 f4 Qa5 f6 Nc6 f5 Kd8 f7 Qa3 f6 Qg3+ Ke2 Nd4+ Kd2 Qf4+ Ke1 Nf5 gxf5 g4 Nf3 Ra5 Ng1 Qg5 hxg5 Ra8 Kf2 e5 Kg3 b5 a4 h5 a5 b3 g6 e4 g7 b4 a6 b2 c6 b3 a7 Rh6 Qd5 Rh7 Ra4 Rh8 Rd4 Ne7 g8N Bh6 Kh4 g3 Nc3 b1B Ba6 g2 Nh3 g1R Na2 b2 Bd2 Rf1 f8N Ke8 c7 Rb8 Qb5 Kf7 Ne6 Nd5 Ne7 Nb6 Nc6 Rf8 Ncb4 Re8 Rg1 Ra8 Rg5 Rf8 Nc1 Ba2 Qc6 Bd5 Nca2 b1B Qc3 Bc4 Qb2 Bb7 c8Q Bd3 Nc1 Ba2 Qc6 Rae8 Nc7 Bc8 Na8 Bac4 Nca2 Be2 Rg2 Bf3 Rf2 Bg2 Rf4 Kg8 f7+ Kh7 f6 Kg6 Rf5 Be6 Rfd5 Bf5 Kg3 Rh8 f8Q h4+ Kh2 Rg8 Qfc5 Rgf8 f7+ Kh7 Ng1 h3 Kg3 h2 Kh4 h1B Nh3 Kg7 Be3 Bh7 Bd2 Rg8 f8R Rh8 Q6b5 Kg6 Rf4 Rhf8 Qbc6+
Rn2r3/2k3QK/3PqB2/1Rq5/1np2RBn/1p1N4/1BQNn1P1/rN2n1N1 b - - 0 1 illegal: No possible last move
2K1Nn2/N2B2QQ/3pqp1B/r2Pnn2/nR4B1/n1B5/kQR1NPq1/6r1 b - - 0 1 legal: proof: h4 g5 a4 gxh4 b4 b5 axb5 Bh6 b6 Nf6 c3 Bf8 b5 Ng8 e4 d6 e5 Bd7 e6 Bg7 exd7+ Kf8 Qc2 Bd4 Qb3 Bc5 Qd1 Bb4 cxb4 Qe8 Qf3 Qc8 Qd1 Qd8 Ke2 h5 Ke3 c5 Kf4 a5 Kf5 e5 d4 Ke7 g4 a4 g5 e4 g6 h3 g7 a3 b7 e3 b6 c4 b5 c3 Qg4 c2 Nc3 a2 Qf4 e2 Ne4 e1Q Nf6 h4 Rb1 a1N Rb4 h2 Bh3 Ra5 Ne8 f6 Ne2 Na6 b8Q Nc5 b7 Na4 Bg4 h3 Qa7 Qb6 b8Q Rh4 Be3 c1N Qbb7 Nc2 Qg2 Qb7 d8B+ Kd7 Rg1 h1N d5 h2 b6 Nd3 Qc4 Ne5 Bh6 Na3 Qc1 Rh3 Bc7 Rg3 Qh3 Kc8 Ke6 Ne7 g8B N7g6 Rf1 Rg1 Bd8+ Qc6 Qg7 Ng3 b7+ Kb8 Bh7 Ka7 b8N+ Qb7 Nc6+ Ka6 Na7 h1Q Bb6 Qe4 Bd4 Qg2 Bc3 Qb5 Bg8 Nf8+ Ke7 Nf5+ Kd8 Kb6 Be6 Kc5 Kc8 Qb6 Bd7 Qb5 Rb2 Kc4 Rc2 Qb2 Qh5 Kb3 Qhg6 Qd1 Q6h7 Ka2 Re1 Qd4 Rd1 Qde4 Rd4 Neg6 Rc4 Qe6 Rb4 Ne5 Qxb2+
r1b1rB1N/4B1Q1/2p2p1N/3NrP1b/2QPq3/5N1k/1KQ1Bbq1/R1rR4 b - - 0 1 legal: proof: a4 d5 c3 b5 axb5 d4 cxd4 Qd5 Ra4 Qd6 Ra1 Qd8 g4 e5 g5 e4 d3 exd3 g6 Bd7 Ra5 Bf5 Ra1 Bc8 h3 f6 Ra4 Nd7 Nd2 Nh6 Ra3 Ne5 Ra1 Nef7 gxf7+ Kd7 Nb1 g5 Nf3 Nf5 Ng1 g4 h4 Ng7 Ra2 Ne6 Ra1 Ng5 hxg5 Bb7 Nc3 Ba6 Nb1 Bc8 Kd2 Ke6 Kc3 Kf5 f4 h5 b4 a5 e4+ Kg6 e5 Kf5 e6 c6 g6 a4 b6 g3 e7 d2 e8N h4 b7 g2 b8Q a3 g7 h3 g8N h2 b5 a2 b6 Ba6 b7 Qd5 Nd6+ Kg6 f5+ Kg5 Nh6 Kh4 Nf3+ Kh3 Qa7 Qe4 b8Q Bc8 Qc2 d1B Be2 g1R Qb4 Re1 Kb2 Rg8 Rg1 h1Q Qbc4 Qg2 Nc3 Be7 Bf4 Re8 f8B Bd8 Bh2 Bc7 Ndf7 Bg3 Nd5 Bf2 Bhd6 Re5 Nh8 Re8 Rb1 a1R Qg7 R1a5 Ra1 Rf1 Nc7 Rae5 Nd5 Re1 Bd3 Be2 Bde7 Rc1 Rd1 Bd7 Nh4 Bh5 Be2 Bc8 Nf3
qr4n1/Qp1NRK1k/3q2R1/1qp3P1/1Nn1q1Q1/1B2Q3/R2Q1P2/2N1r1Br b - - 0 1 legal: proof: e4 d5 b4 a5 c4 axb4 cxd5 f5 exf5 g6 g3 Qd7 Ba3 Qd6 Bc1 Qd8 Bd3 g5 Ba6 g4 Bf1 Bd7 Bc4 Bh6 Bf1 Bf4 gxf4 g3 h3 Bb5 Nc3 Be2 Nb1 Bg4 hxg4 Qd7 Bb2 Qc8 Bc1 Qd8 Ke2 Kf7 Kf3 Kg7 Ke4 c5 Ke5 h5 Ke6 h4 d4 b3 a4 h3 f6+ Kh6 f7 h2 f8R b2 f5+ Kh7 f6 g2 a5 Qd7+ Kf7 Qf5 g5 e5 d6 e4 d7 e3 d8Q e2 d5 e1R a6 Qe4 d6 Nc6 d7 Nce7 a7 Nc6 Bc4 Rc8 a8Q Qd3 Qa7 Rb8 Bf4 Qh3 Qe7 Qh4 d8Q Na5 Na3 b1Q Bb3 Re3 Q8d2 Qf5 Ra2 Re1 Ne2 g1Q Nc2 Ra8 Nc1 Re8 Nb4 Nc4 Qee3 Rb8 Qg4 Qf1 Re8 Qd7+ Re7 Qb5 Bd6 Qd3 Bg3 Qd6 Bf4 Re2 Re1 h1Q Bh2 Qe4 Rh1 Re1 Bg1 Qdd4 Rh3 Qa1 Rf3 Qg3 Rf5 Qa6 Rfe5 Qh2 R5e6 Qb5 Ra5 Qb6 Qa8 Qf5 Rc6 Qc2 Ke6+ Kg6 f7 Qb5 Ra4 Rh4 Ra3 Kg7 f8N+ Kh8 Qa5 Qe4+ Kf7 Rh6 Rg6 Qd6 Nd7 Rh1 Qa8 Kh7 Ra7 Qb2 Ra1 Qa3 Ra2 Qaa4 Qa6 Qaa5 Qb6 Qa8 Qa7
QQ2n1Qr/1rkP2n1/1p1N4/2P2Nq1/1n1r2p1/2n1N2R/1rR2K2/2BQ1BB1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 a5 gxh5 Rh7 b4 axb4 c4 Rh6 c5 Rh8 d3 d5 Bb2 e6 Nc3 Bd6 cxd6 c5 Qa4+ Bd7 Nb1 c4 Bc1 c3 Qb3 Bb5 Qd1 Bc4 dxc4 Qb6 Be3 Qa5 Bc1 Qd8 a4 Kd7 f4 g5 h4 g4 f6 b6 f5 c2 c5 e5 a5 e4 a6 b3 a7 e3 h6 e2 f7 b2 f8Q d4 h7 d3 f6 d2+ Kf2 e1R h5 Re3 f7 Rh3 h6 Nc6 Nf3 Rg3 Qg7 Nd4 f8Q+ Kc6 Na3 b1R Nh4 Rbb3 Ra2 Rg1 Rh3 Rb8 a8Q+ Rb7 Nc4 Qg5 Nf5 Ne6 Nce3 Nf6 Qfg8 Ne8 d7 Kc7 Qa1 Rd3 Rb2 Rh1 Q1a7 N6g7 Qe6 Rf8 h8B Rd4 h7 Rg1 Qg8 Rg3 Nc4 Rb3 Ra2 Rb2 Ne3 Ne6 Bf6 N6g7 h8N Nd6 Qh7 Nde8 Nf7 Rh8 N7d6 Rb5 Bb2 c1N Qg8 Rb3 Be5 Rb5 Bh2 Nd3+ Ke2 Rbb4 Bc1 Rb2 Bg1 Nb4 Kf2 Rb3 Rc2 Rb2 Qe1 d1N+ Ke2 Nc3+ Kf2 Rh7 Qd1 Rh8 Q7b8+
R3r3/2QNN3/Q6p/n1Qb1Bb1/KpBNRBr1/2P1pb1Q/7P/1nk3q1 b - - 0 1 legal: proof: e4 c5 f4 d5 exd5 a5 a4 g5 fxg5 b5 b4 c4 bxa5 b4 a6 c3 a5 Qxa5 Nxc3 Qc7 Nb1 Qd8 g4 Kd7 d4 Kd6 Kd2 f5 g6 e5 c3 h6 Kc2 e4 Kb3 f4 g5 f3 a7 f2 g7 Qa5 g6 Bb7 Nd2 Nc6 Ngf3 Rh7 Bd3 f1B Ne5 Nb8 Nd7 Na6 Qg4 Qc7 Ka4 Rh8 Qh3 Rd8 a8Q Re8 Nf3 Nf6 g8B Nb8 g7 Be2 Re1 Nc6 Qa6 Be7 Bc4 Ba8 Bh7 Rhg8 Bf5 Qb6 Ra2 Bd8 Bg5 Na5 Bf4+ Ke7 Ra3 Kf7 d6+ Bd5 Nd2 Bf3 Nb3 Nh7 Ra2 Bg5 Raa1 Nf6 Ra3 Rh8 g8N Qc5 Ne7 Rhg8 Nb6 Rg7 d7 Rg6 d8Q e3 Nd7 Ne4 Rf1 Nd2 Qdb6 Nb1 Qd6 Qb6 Qc5 Rg7 Rg1 Qg6 Rg4 Rgg8 Nb6 Kf6 Ra2 Be6 d5 Rg7 d6 Bed5 d7 Rgg8 d8Q Qg7 Bh7 Qg6 Nec8+ Kf5 Nd4+ Ke4 Nd7 Rg7 Ne7 Rgg8 Qac6 Rg7 Qdc7 Rgg8 Bb3 Kd3 Ra1 Kd2 Bc4 Kc1 Qa6 Qd3 Bf5 Qf1 Be5 Qg1 Re4 Bf6 Ra3 Rg4 Bf4 Bg5 Qa8 Qh1 Kb5 Nb3 Ra6 Qg1 Ka4 Na5 Qac6 Qg2 Ra8 Qg1 Qa6
2k3B1/q1r2PRQ/2BRnNR1/5P2/p3Qppb/K1N2b2/n5N1/2rQ1bQ1 b - - 0 1 legal: proof: f4 b5 g4 f5 gxf5 d5 c4 e5 cxd5 b4 f6 b3 f5 Ba3 axb3 Bd6 b4 Be7 b5 Bf8 h4 g5 b3 g4 Bb2 Qd7 Ba3 Qg7 Bd6 Qg5 hxg5 Na6 Bc5 Nb8 Be3 Ba6 Bf4 exf4 Nh3 Bb7 Ng1 Bc8 e4 Kd8 d4 h5 Kd2 c5 Kc2 a5 Kb2 c4 e5 h4 b6 h3 d6 c3+ Ka3 h2 g6 c2 b4 Ne7 d7 Rh4 g7 Nec6 g8B Bb7 f7 Rh8 d5 Ra7 e6 Ba8 b7 Kc7 d8R Rh7 d6+ Kb6 d7 Kc7 e7 Ra6 e8Q Rh6 Nf3 Rd6 b5 Bh6 Nc3 Rd5 Ne1 Rc5 Ng2 Nd4 Qe4 Nbc6 b8N Ne6 b6+ Kb7 Rc1 a4 Bb5 Ra7 Qg1 Bg5 Rd1 Bf6 Rd6 Bh4 Rf8 Rc4 d8Q Rc5 Nd7 c1Q+ Ka2 Qe1 Ka3 Qf2 Nf6 Rc4 Qee1 Nb4 Qe4+ Rc6 Re8 Na2 Qd7+ Nc7 Ree6 Kb8 b7 Rc5 Ne2 Rc1 Nc3 Qe3 Bc6 Qb6 Nh5 Qd4 Rg6 Ne6 Rg7 Qb6 Nf6 Qd4 Qf2 Qb6 Rhd1 h1B Qg1 Qc7 Ne1 Bf3 Ng2 Be2 R1d3 Bf1 Rh3 Bg5 Rh6 Bh4 Rhg6 Ra5 Qe2 Rc5 Qe7 Qb6 Qd1 Qa7 Qe8+ Nd8 Qe4 Ne6 Bb5 Rc8 Bd7 Kc7 b8Q+ Kd8 Qbb6+ Rc7 Bc6+ Kc8 Qh1 Bg3 Qh7 Bh4 Qg1 Bb7 Qc4 Ba8 Bb5 Be4 Bc6 Bf3 Qe4
3Qq1Nr/1B1Qb3/2QP1P1n/KpBRb1p1/N2nR1bp/n2k4/2N5/2B3N1 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 Nd7 g4 Nb8 b4 axb4 f6 Ra7 Ba3 Ra4 Bc1 Ra8 h4 b5 f4 g5 h5 Nh6 f5 Kd7 f7 Ng8 f6 Ra3 Nh3 Rf3 Ng1 Rf5 gxf5 Bh6 Rh3 Qf8 Rh2 Qg7 Rh1 Qg6 hxg6 Bf8 a4 Kd6 d4 e5 Kd2 h5 a5 c5 a6 b3 Kc3 e4 g7 b2 a7 c4 Kb4 c3 a8N e3 Na3 b1Q+ Ka5 h4 Nc2 e2 Nb6 e1N Na4 Nd3 Bg2 Nh6 g8N Be7 f8B Nb2 f7 Bd7 f6 Qa2 Rh3 Qa3 Re3 Bg4 Re4 Qc5 Ra2 Qc6 Ra3 Qe8 Rb3 Kd7 d6 Kc6 d7 Kd5 d8Q+ Kc4 Qf3 Bc5 Qf5 Be7 d5+ Kd3 Qfd7 Nc6+ Kb6 Nd4 Ka5 Ba3 Bd6 Bc5 f8Q Ba3 Bc5 Nc4+ Ka6 Bb2 Qfd6 Na3 Ka5 Ba1 Q6c6 Bb2 Ne3 Ba1 Rb4 c2 Re5 Ne6 Rf5 Be5 Re4 Nd4 Bh1 Bd6 Bg2 Bf8 d6 Be7 Bd2 c1B Nc2 Bb2 Bc1 Ne6 Bf3 Be5 Bg2 Nd4 Bf3 Bh2 Rd5 Be5 Re3+ Kc4 Qcb6 Bg3 Rde5 Bf5 Bb7 Bg4 R3e4 Kd3 Rd5 Be5 Qbc6
3BN3/Q1Q1P1pb/1r4PN/2Q3pq/n4k1b/Rn3B1R/QbBpK1n1/7R b - - 0 1 legal: proof: d4 a5 a4 b5 axb5 e5 f4 c5 fxe5 f6 dxc5 Na6 g4 Nc7 h4 Na6 g5 Nb8 h5 fxg5 Be3 Ra6 Bc1 Rg6 hxg6 Qb6 Nh3 Qc7 Ng1 Qd8 c4 Ke7 e4 Ke6 b4 h5 b6 d5 c6 d4 c7 a4 b5 h4 c5 a3 c6 h3 b7 a2 b6 d3 Qd2 h2 Ne2 Nh6 Nd4+ Ke7 e6 Kf6 e5+ Ke7 Bb2 Na6 b8R Qd6 b7 Nb4 Be2 Ng4 Na3 Ne3 Nc4 Na6 Bf3 Nc5 Bc3 Rh4 Ba5 Na4 Qg2 Bd7 c8Q d2+ Ke2 Be8 c7 Bf7 Qf2 Qd7 Nd6 Ng2 Ne8 Bg8 Qe1 Bh7 Qb1 Rg4 Ra8 Rf4 b8Q Rf6 Qa7 Qc6 Qb3 Qc2 Rae1 a1B Qa2 Bb2 Rc1 Qf5 Rc3 Qh3 Ra3 Qh5 Rb8 Rf4 Rbb3 Rf5 Nb5 Rf4 Nbd6 Rb4 Nf7 Rb8 Nh6 Rb6 Rg1 h1N Qcb8 Nf2 c8Q+ Rb7 Rh1 Nd3 Qc1 Ndc5 Qc7+ Nd7 Rd3 Rb6 Q7c5+ Kd8 Q1c4 Bd6 Qcc7+ Ke7 Q7c5 Rc6 Bc7 Rb6 Bd8+ Kf8 Qcc7 Ndc5 Rdc3 Nb3 Q4c5 Na5 Nf7 Nb3 e7+ Kg8 e6 Bg3 Rcc1 Be1 Rh3 Bh4 Rch1 Qh6 Ned6 Qh5 e8B Kf8 Bb5 Ra6 Nh6 Rc6 Bd3 Rb6 Nb7+ Ke8 Q5e5 Kf8 Bc2 Ke8 Qea5 Kf8 Qcc5+ Ke8 e7 Kd7 Nd6+ Ke6 Qcc7 Kf6 Qb4 Ke5 Qbc5+ Kf4 Ne8+
B4K1B/p1r1Bpr1/1RN3Q1/1B2n3/2QP2P1/2N2b2/RRbrQp2/3bk2q b - - 0 1 legal: proof: h4 d5 f4 b5 a4 g5 hxg5 e5 axb5 exf4 c3 d4 Na3 c5 Nf3 c4 Nb1 Nc6 Ng1 Bb4 Nh3 d3 Ng1 Nd4 cxd4 c3 Ra6 c2 Ra1 Bc3 dxc3 Qd5 Rh2 Qd6 Rh1 Qd8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 g4 h4 b4 h3 g6 d2 c4 f3 c5+ Ke6 c6 h2 b6 f2 b7 Qg5 b8B Qc5 c7 Qg5 g7 Qd8 b5 Rh4 b6 Qf6 b7 Ne7 g8Q Rh8 Ra2 Qg7 Bg2 Ng6 Nf3 Rh4 Nc3 Ne7 Ne5 Qh6 Nc6 Qf8 Ba3 c1R Qg6+ Kd7 Ke5 Qh6 Kf6 Rh3 e4 Rd3 e5 Rc2 Re1 h1B Re2 Qh3 Qb1 d1B Kg7 Rdd2 Kf8 Rc1 Be4 Bf3 Qd3 Qh1 Bd6 Nd5 Ba3 Nb4 e6+ Kd6 e7+ Be6 e8B Bc2 Qh5 Beb3 Rb2 Ke6 c8Q+ Kf6 Qh7 Kg5 Qg6+ Kh4 Bd5 Kh3 Be5 Kg2 b8R Kf1 Rb6 Bd1 Bh8 Bbc2 Qca6 Rd8 Qdc4 Nd3 Be7 Ne5 Qcd3 Rd6 Qac4 Re6 Na5 Rf6 Ba8 Rf5 Bb5 Rg5 Qh7 Rg6 Nc6 Rg7 Qdg6 Rd3 Rd2 Ke1 Ra2 Ba4 Rdb2 Rd2 Qgd3 Bac2 Qhg6 Qg2 Na4 Bfe2 Nb4 Bb3 Qd5 Rc7 Q5c4 Qh1 Nc3 Bf3 Nc6 Bbc2 Qe2+
Q3NrR1/n1n3Q1/2pP3R/B1np2q1/1b1Nr1B1/BQ1P4/2p3K1/2q1k1NQ b - - 0 1 legal: proof: e4 b5 g4 a5 c4 bxc4 b4 h5 bxa5 Nf6 gxh5 Ng8 Nc3 d5 Nb1 Qd6 f3 Bf5 e5 Be4 exd6 e5 Ne2 Bg6 Ng1 e4 Bb2 e3 Bc1 Be4 fxe4 Ra7 Nh3 Ra6 Ng1 Ra8 a4 Kd7 h4 Ke6 h6 Ke5 h7 Kf4 h5 Kg3 h6 f5 a6 g5 e5 g4 e6 c6 a5 f4 a7 c3 a6 c2 e7 e2 e8N f3 Ba3 Bg7 Bh3 Ne7 Nc3 Rf8 h8Q Nc8 Nb5 Bc3 h7 Bb4 Qg7 Rf4 h8B Rd4 Nc3 Re4 d3 f2+ Kd2 f1N+ Ke1 Nd2 Nb5 Re7 Nd4 Ne4+ Qd2 Nc5 Qc3 Re4 Ra2 Kf4 Kf2 e1Q+ Kg2 Ke3 Qb3 g3 Bg4 Kd2 Rh6 Qc1 Ra1 Ke1 Ra2 Nbd7 Rb2 Rb8 a8Q Ne6 a7 Nc7 Qb7 Qg5 a8Q Nc5 Qh7 Qc1 Bf6 Na7 Bd8 Ncb5 Ba5 Nc7 Nf6 Rf8 Ne8 N7e6 Qbe7 Nc7 Qh4 Qg5 Qg7 Qc1 Qh1 Qg5 Kh3 g2 Rb1+ Kf2 Rd1 Qc1 Rd2+ Ke1 Rf2 Qg5 Rf5 Qc1 Rg5 Qf4 Qd7 Kd2 Rg8 Qg5 Nge2 g1Q Qg7 Qc1 Ng1 Ke1 Kg2
R1NB2q1/4Q1kp/1b2P2p/qNNK4/1R3Qq1/1P2B2R/b1nNr1p1/5nQ1 b - - 0 1 illegal: Other
2Q1NBNn/R1K3P1/5Q1B/k2rP2B/5NpR/pqn2p1q/1Qb2Q2/3b1b2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 c4 d5 cxd5 f3 Ra5 f4 Ra6 Bf5 Ra1 Bc8 Kf2 g5 Ke1 a5 h3 Bh6 h4 Ra6 Qc2 Rf6 Qd1 Rf5 gxf5 g4 Rh2 Qd6 Rh1 Bg5 hxg5 Qd8 Kf2 Kd7 d4 h5 e4 c5 b4 Kc7 g6 Kb6 d6 a4 g7 h4 d5 h3 d7 h2 d6 c4 e5 a3 f6 c3 f7 c2 Nh3 Qe8 d8Q+ Ka7 b6+ Kb7 d7 Na6 b5 Qe6 Qe1 Qh6 Nd2 Qe6 Nc4 Rh4 f8B Qf7 Rb1 Nh6 Nd6+ Ka8 b7+ Ka7 b8N Qa2 Bc4 Nb4 Qf6 Kb6 d8Q+ Ka7 Ne8 Nd5 b6+ Kb7 Qf1 Nf7 Nc6 Rh5 Be3 Nh8 Ne7 Qb2 Bd3 c1Q+ Qe2 Qbc3 Bg6 Bf5 Ng8 Qb4 Qc2 Ka6 Qdc8+ Ka5 b7 Nc3 b8Q Qc4 Qe2 Bc2 Qb3 Rh4 Bh5 Qd5 Qe1 Qe6 Qa2 Qf7 Rb7 Qb3 Qb2 Qd2+ Kf1 f2 Kg2 Qd3 Qe2 f1B+ Kf2 Bg2 Qf1 Bf3 Qg1 Be2 Qe1 f3 Bh6 Qd1 Qg1 Qf1+ Ke3 Qg2 Qf2 Qf1 Rg1 h1B Kd4 Bg2 Nf4 Rh1 Kc5 Bh3 Kc6 Qg2 Ra1 Rd1 Rc1 Rd5 Rh1 Bed1 Kc7 Qg3 Rh2 Bf1 Rh4 Qh3 Ra7+
1QQK2N1/5Pn1/2qR2b1/1B2qR1R/N2r4/1R2Pp1B/kNpqp2r/nB6 b - - 0 1 illegal: No possible last move
5RNn/2RQ1PB1/6qp/r2QKb1p/1PbRN2Q/1B3r2/1kp3N1/1qb1N3 b - - 0 1 legal: proof: c4 b5 h4 f5 e4 e5 a4 d5 cxd5 f4 axb5 Be6 h5 Nc6 f3 Nd4 h6 Nf5 exf5 e4 fxe4 gxh6 e5 h5 Rh4 Bd7 Rh1 Bc8 Ke2 Kd7 Kd3 c5 Ke4 a5 d4 f3 g4 h6 b4 c4 e6+ Kd6 g5 a4 f6 c3 g6 f2 e7 a3 e8Q a2 f7 c2 b6 Be7 b7 Rh7 b8R Bb7 g7 Qa5 Nf3 Qb6 Bc4 f1B Nbd2 Qc5 Ne1 Bc6 Bb2 Bd7 Bb3 Ra7 Rh4 Kc7 Ke5 Qc6 Ne4 Qg6 d6+ Kc6 Rd8 Kb5 d5 Ra5 Qd4 Nf6 g8N Bc4 Rc8 Rg7 Rc7 Nh7 Qc8 Bf5 d7 Nf6 d8N Nh7 d6 Bg5 d7 Nf8 Ne6 Bd2 Rd1 a1Q d8Q Bc1 Nf4 Qa2 Nfg2 Qb1 Ba2 Ka4+ Q4d5 Bb5 Bd4 Ka3 Qcd7 Bd3 Bb3 Bc4 Ba7 Kb2 Rf4 Qb6 Qh4 Rg3 Rd4 Rc3 Rg4 Qg6 Bc5 Re3 Be7 Rf3 Bf6 Qg5 Bg7 Ng6+ Kd6 Nh8 Ke5 Qg6 Rg3 Rf2 Rc3 Rf3 Rc8 Be2 R3c7 Bc4 Rf8
2bQ4/1q1nkP2/BRp3p1/5qnp/4P1RQ/2Knr1b1/4QBN1/1B3NQR b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 f5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 fxg4 h4 a5 h5 g6 h6 Ra6 Rh5 Rf6 Rh2 Rf7 Rh1 Rg7 hxg7 Bf5 Nc3 Bd7 Nb1 Bc8 Kd2 h5 f4 c6 b4 a4 d6 g3 d7+ Kf7 b6 a3 b5 a2 f5 g2 b7 Qe7 d8Q Nf6 g8B+ Kg7 b6 Nh7 e6 Kf6 Nf3 g1Q Kc3 Qg4 Nh4 Ng5 Nd2 Na6 b8R Qg2 b7 Qh2 Ng2 Ke5 f6 Qe8 e7 Qf7 e8Q+ Be7 e4 Ke6 Qe2 Qc7 Qd4 Qb6 Qed8 Nb4 Qg1 Nd3 Rh4 Qb1 Rg4 Bd6 Ba3 Rh7 Bc5 Bg3 Bf2 Qb5 Rb1 Qf5 Rb6 a1N Ra8 Rg7 b8Q Rh7 Qf4 Nb3 Ra1 Nbc5 Rc1 Nd7 Rd1 Nh3 Qg5 Rh8 Qh4 Ng5 Re1 Kd6 Ra1 Qg7 Ba2 Re8 Rd1 Re5 Bb1 Rd5 Nf3 Qe7 f7 Rb5 Nh2 Rb2 Qf3 Re2 Rc1 Re3 Be2 Ke6 Nf1 N7c5 Rd1 Qb7 Rc1 Nd7 Re1 Nb2+ Bed3 Kd6 Qe2 Bf4 Nd2 Nh3 Qh2 Bg3 Rh1 Ng5 Nf1 Ke6 Qg1 Kd6 Kc2 Ke6 Ba6 Nd3 Kc3 Kd6 Qg8 Ke7 Qd8+
1Q1Rq1B1/5p2/RK1n4/N2P2N1/1Q3QPR/3k3r/p1NNBpnq/3b1nr1 b - - 0 1 legal: proof: h4 e5 a4 d5 c4 g5 cxd5 b5 axb5 Bh3 hxg5 Bg4 f4 Nc6 b3 Bc8 f5 Nb8 e4 Ke7 f6+ Kd6 Ba3+ Kd7 Bd6 Be7 fxe7 Ba6 e8B+ Kc8 Bc5 Qf6 Be3 Qd8 Bf4 exf4 e5 Bb7 e6 Ba6 e7 Bb7 Bc6 Ba6 Bb7+ Kd7 Bc6+ Kd6 Be8 Bc8 Kf2 Ke5 g4 Kd4 g6 c5 g7 h5 b6 a5 b7 a4 b4 c4 d6 f3 b5 a3 d7 c3 b6 h4 Qa4+ Kd5 Ke3 h3 d4 h2 Nh3 c2 Ng5 c1Q+ Nd2 f2 Bd3 Nh6 g8N Qdc7 d8N Q7c3 Nc6 Na6 b8Q Be6 b7 Nc7 Na5 Nb5 Qf4 Qg1 b8Q Qc8 Bh7 Nd6 Qab4 Nhf5+ Kd3 Qg2 Nh6 Ne3 Nf5 Ra7 Bg8 Rh3 Ba4 Qe8 Bd1 Rc7 Be2 Rc1 Ra2 Rg1 Bf3+ Ne4 Ra1 Bd7 Ra2 Ba4 Ra1 Bd1 Ra2 Qd7 e8R Qg3 Rd8 Ng2 Rc2 a2 Rc6 Qh4 Ra6 Qh6 Nd6 Qe8 Nb5+ Qd6 Na3 Re1 Rf1 h1N Nc2 Ng3 Rh1 Rg1 Nh7 Ke6 Kc4 Nf1 Rh2 Neg3 Rh1 Nf5 Ng5+ Kf6 Bc6 Qc7 Kc5 Qd6+ Kb6 Qde5 Qe3 Qh2 Bf3 Nd6 d5 Qe4 Ne1 Ke5 Qed4+ Kf4 Qe5+ Ke3 Nc2+ Kd3 Qf6 Qhe5 Qf4 Qh8 Rh2 Qe8 Rh1 Rg3 Rh5 Rh3 Rh4 Qhe5 Qf6 Qg3 Qff4 Qh2 Be2+
n1B5/1BQ1Np2/B3p3/1b1b1q1R/p1PKNP2/n1Q1N3/k5rR/1R1nq2B b - - 0 1 legal: proof: d4 a5 a4 b5 axb5 c5 dxc5 d5 e3 d4 e4 Ra7 Na3 Rd7 Nb1 Rd5 exd5 Qd6 Na3 Qb6 Nb1 Qd8 f3 g5 Be3 g4 Kd2 g3 Bf2 gxf2 g4 Kd7 h4 Bb7 g5 Bc8 g6 Bh6+ Ke2 Bg5 hxg5 Ke8 Kd3 Ba6 Kd2 Bc8 b4 Kd7 Kd3 h5 b6 a4 d6 Ke6 g7 Kd5 g6 e6 b7 h4 c6 h3 b5 h2 d7 Qf6 d8N Qh4 c7 Rh5 f4 Kc5 b6 Kb4 Qd2+ Kb5 Nf3 Rd5 Ng5 Qh5 Nc3+ Kb4 Nge4 Qh8 Ra2 Nc6 b8R Rb5 b7 Bd7 c8B Nge7 g8B Rg5 g7 Rg2 Bh7 Na5 g8B Nd5 Nd1+ Nc3 Rb2+ Ka3 Ne3 Nc4 Nc6 Nb1 Ne7 Qf6 Bg6 Nb6 B8h7 Qf5 Rb5 Qd5 Qc3+ Ka2 Bh5 Be8 Bf3 Na3 B1e2 f1Q Rc5 Qd7 Rh5 Na8 Bf5 Qd5 Bh3 Rg6 Bhg2 Qe1 Bef1 Qf5 B1e2 Qh4 Rb1 Qe1 Bh1 Rg2 Bf1 Nb6 Ra8 Bd7 b8Q Be8 Ra5 Na8 Qbc7 Bc6 Rc5 Bb5+ Rc4 Qd5 Nf6 Qe5 Bfb7 Qg5 Ke4 d3 Kd4 d2 Ne4 d1N Rc5 Qg6 Rcg5 Qf5 Rh3 Be8 Bfa6 Bb5 Rgh5 Rg3 Bg2 h1B Rh2 Rg4 Bh3 Bf3 Bg2 Rg5 Bh1 Rg2 Nc5 Bd5 Ne4 Qh7 Qd2 Qf5 c4+ Nb2 Qb4 Nd1 Qc3
Bq1n1BqQ/2bP1nb1/3rp3/1pP5/N1q5/K1B1p2Q/N1k1R2R/B2N3Q b - - 0 1 legal: proof: e4 a5 c4 f5 g4 fxe4 b4 h5 gxh5 d5 bxa5 d4 d3 b5 Qc2 c5 Qd1 Be6 Ba3 Bd5 cxd5 c4 Bb2 c3 Bc1 Ra6 Qf3 Rc6 Qd1 Rc4 dxc4 Qd6 Bf4 Qd7 Bc1 Qd8 h4 Kf7 a4 Kf6 f4 Kf5 a6 g5 h6 g4 d6 e3 a7 Ke4 a8N c2 d7 d3 c5 g3 f5 e6 a5 g2 f6 Ne7 h7 Rg8 h8B Nd5 h5 Nc7 h6 Nd5 h7 Bd6 f7 Rg4 f8B Rg6 a6 Nc3 a7 Na6 Rh2 Nb8 Nb6 Rg8 a8Q+ Nc6 Nh3 g1Q Qh5 Rg5 Ra2 Qb8 Na4 Rd5 Bd2 c1B Be5 Qg4 h8Q Bc7 Beg7 Bb2 Bg2+ Qf3 Bd4 Rd6 Bh1 Qg2 Nf2+ Kf4 Qb7 Qg8 Nd1 Ne4 Nbc3 Ng5 Qh3 Nf7 Bf3 Ba1 Rc2 Ncd8 Na2 Bb2 Qd5 Ba1 Qdh5 Bb2 Ba8 Ba1 Bdg7 Bf6 Q5f3+ Ke5 Qh1 Kd4 Rb2 Kc4 Rc2+ Kb3 Re2 Be7 Ba1 Bf6 Nf2 Bg7 Kd1 Nb7 Kc1 Nbd8 Bdc3 d2+ Kb1 Kc4 Kb2 d1Q Ka3 Qd4 Nd1 Kd3 Rh2 Qe4 Rce2 Qc4 Bd2 Kc2 Bdc3+
3n2R1/KP6/Bnb2q2/PNR1QqNr/2B1np2/2Qp2pr/3B1k2/1NQ2Q2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Bd6 Nh3 Bc7 Ng1 Ba5 bxa5 Ra6 Qd2 Ra7 Qd1 Ra8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kc5 Kg4 c4 g5 e4+ Kh4 e6 d5 b6 f5 b7 d3 e5 g4 e7 d4 e8B f4 e6 d2 h6 a3 h7 g3 e7 a2 Nh3 Bg4 Bf7 Nh6 e8N Qe7+ Kb6 Qe6+ Nd6 Qe7 c5 Bd7 c6 Qe8 c7 Bc8 Ng5 Qe6 Ba6 d3 Qf1 d1N Bd2 Kg4 h4 Nc3 h5 Qf5 Bfc4 Ne4 Nb5 Bd7 c8Q Nf7 h6 Bc6 Qc7 Nd8 Rh5 Re8 h8Q Re5 h7 Rd5 Qb2 Rc5 Qce5 Nd7+ Kc7 Nb6 h8Q Rd5 Qbc1 Rc5 Rh6 Rb8 Rg6 Ra8 N1a3 Rd5 Rb1 a1Q Rg8 Qb2 Ra1 Rb8 Nb1 Rc5 Qe7 Qbf6 Qe5 Q5e6 Ra3 Qh6 Qa1 Nd7 Rg6 Qh7 Bd5 Nf7 Rc3 Nb6 Qd4 Rh8 Rg8 Qhh6 Kb8 Nd8 Ka7 Qhf6 Qc4 Qee5 Ne6+ Qeg5 Qb4 Rh3 Ba2 Rd5 Rc5 Qgg6 Qb3 Rdh5 Qe5 Qf5 Qbc3 Qg7 Qfe1 Kf3 Bc4 Qgf6 Ng5+ Kg2 Qh1+ Kf2 Qhf1#
B6Q/pqNq1P2/2R3QB/1r2Rn1R/K1p1bNN1/Pn6/bqNB1p2/k7 b - - 0 1 legal: proof: e4 f5 c4 d5 g4 h5 gxh5 b6 b3 f4 b4 c5 bxc5 dxc4 Qc2 Na6 Qa4+ Bd7 Qd1 Bc8 Nc3 e5 Nge2 b5 Ng3 Be7 Nge2 Bh4 Nb1 Rb8 Ba3 Rb6 Qc2 Rf6 Bc1 Rf5 exf5 e4 Qd1 e3 Ng1 Bf6 Ke2 Bd4 Kf3 e2 Kg2 Be3 fxe3 Qf6 Kf2 Qd8 Ke1 Kf7 h4 Kf6 d4 g5 Kd2 g4 Kc3 f3 d5 Ke5 f6 f2 d6 g3 d7 e1Q+ Bd2 g2 f7 Nc7 Kb4 Rh6 e4 Kd4 e5 Nf6 e6 Rh7 e7 Nce8 h6 Qc7 d8N Qd6 h5 Rh8 h7 Qd5 c6 Be6 h6 Qd7 c7 Qe4 c8R Qh4 Qc2 Ne4 Nh3 g1Q Na3 Qhg3 Nf4 N8d6 e8N Bf5 Rh5 Qf3 Bg2 Qc1 Nf6 Nc5 Ng4 Qd5 Ka5 b4 Bf3 Re8 h8B+ Re5 h7 b3 Bg7 b2 h8Q b1B Bh6 Nb3+ Kb4 Q5c6 Bh1 Qa6 Ba8 Bg6 Rc6 Qab7+ Ka4 Bh7 Qe8 Rb5 Re5 Bf5 Qh8 Bh7 Qf5 Qc2 Qff6 Be4 Qg6 Qc1 Qe8 Nf5 Qh8 Bbd3 Rb1 Qc3 Rh1 Bb1 Rh5 Qa1 Be3+ Kc3 Nc2 Kb2 a3 Ba2 Nde6 Kb1 Nc7 Qb2 Nb4 Ka1 Bc1 Qe7 Bd2 Qd7 Nc2+
5Q1K/B1R1p3/4b3/2BnQ2b/p1n1nP1Q/b2QNp1P/rNB5/2RNk1r1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 g5 g4 Bh6 gxh5 Bf8 f4 gxf4 e3 f3 Kf2 Qd6 Ke1 f2+ Ke2 Qd8 Kd3 f5 Qf3 f4 Qd1 f3 Kc3 Qd6 Kc2 Qf4 exf4 Kd8 Ne2 Kd7 Ng1 Ke8 Kd3 Kd7 Ke4 Kd6 d4 c5 b4 a5 b6 a4 h6 c4 h7 c3 b7 c2 h3 Bg7 b5 Ra7 b6 Nh6 Qd3 Bg4 Nc3 Ng8 Be3 c1N Nge2 Bf8 Ng3 Na2 Nf5+ Kd7 d6 Ke6 d5+ Kf6 d7 Nh6 d8N Ra6 d6 Nf7 d7 Rg8 h8Q+ Kg6 Nd1 Nb4 Qh4 Bg7 Nc6 Ne5 d8Q Nd5 Nb4 Nc4 Bc5 Bh5 Qf8 Bb2 Nfe3 Nd7 b8Q Ba3 b7 Re6+ Qe5 Rd6 Be2 f1B b8B Re6 Bba7 N7f6+ Kd4+ Ne4 Rc1 Kh7 Rh2 Rg1 Rg2 Rc6 Rg6 Rc8 Rc6 Rd8 Rc7 Kg6 Qb3 Rc8 Nd3 Rb8 Qc2 Rb2 Qc3 Ra2 N3b2 Bg4 Bd3 Bh5 Bb1 Bd3 Qhe1 Bc2 Qd3 Bb3 Bc2 Bg4 Qef6+ Kh5 Qec3 Be6 Qe5+ Kh4 Qef6+ Kg3 Qh4+ Kh2 Qa5 Bf7 Qae1 Bh5 Qec3 Ncd2 Ke5 Nc4+ Ke6 Kh1 Nf5 Kg2 Qe5 Bg4 Kf7 Bh5+ Kg8 Bf7+ Kh7 Bh5 Qdc3 Kf1 Kh8 Ke2 Qcd4 Kf1 Nfe3+ Ke2 Qg4 Ke1 Qh4+ Ng3 Qc8 Nc3 Qdd8 Nd2 Qcd7 Be6 Rc8 Nc4 Qd3 Nd5 Rc6 Bg8 Qf8 Be6 Qg4 Ne4 Rc7 Ndf6 Qgg5 Nd5 Qh4+
2bqn3/RB3Q1b/2qPN1NR/bP4rp/pp1BR2R/N7/1Q5K/kq4Q1 b - - 0 1 illegal: No possible last move, all moves rejected
R7/2P2nR1/3prb2/p2K2Q1/1PNB3p/Q2B1Nb1/Q1qqQ1b1/Nqk4B b - - 0 1 legal: proof: d4 f5 a4 c5 e4 cxd4 exf5 b5 axb5 Bb7 f4 Bc8 g4 Kf7 f6 Ke6 f5+ Ke5 f7 Kd6 g5 a5 Bc4 Ra6 Be2 Kc7 Bf1 Rf6 gxf6 Kd6 h3 g5 Be2 Nc6 Bf1 Ne5 h4 g4 Kd2 Nf3+ Ke2 Ng5 hxg5 Qc7 Ke1 Qd8 Kd2 Kc5 Kd3 Kb4 Ke4 h5 c4 e5 c5 d3 c6 g3 c7 d2 b6 g2 b7 Rh6 b8Q+ Kc5 g6 Bd6 f8Q Rh7 g7 Ne7 g8B Rg7 f7 Nc6 f6 Nb4 Na3 Nd3 Qe2 d1Q Nc2 Kc4 Nf3 g1Q Be3 Rg6 Qe7 Qg2 Bd4 Qb1 b4 Kb3 Kd5 e4 f8Q e3 f7 Qf2 Qg5 Bg3 Qe8 d6 f8N Bh3 Nd7 Bg2 Nb6 Re6 Nc4 Ne5 Bh7 Bh4 Be4 Nf7 Qeg8 Qf8 Qe8 Qh6 Qee7 Qg6 Qg3 Qfe1 Qeg5 Qd2 Qh3 Bg3 Rg1 h4 Bd3 Qb2 Re1 Qb1 Na1+ Ka2 Bc2 Be5 Be4 Bf6 Qhg3 Bh3 Bg2 Qh7 Bh1 Bg2 Bd3 Qbc2 Qef2 e2 Ref1 e1B Qe2 Kb1 Rf2 Bf1 Qh3 Kc1 Rfg2 Nh8 Rg4 Bg3 Rf4 Bd8 Rf8 Bf6 Ra8 Nf7 Qe8 Bf2 Qa4 Be1 Rg4 Bg2 Qa2 Qb1 Qf5 Bg3 Rg7 Qdc2 Qfe5 Qh6 Qef5 Qhd2 Qg5 Re4 Qd7 Re7 Qda4 Re6 Q4a3+
QBq2n2/1N3Q2/1qB3np/4N1P1/1pRNRpr1/5q1k/1rPN2Qr/2R1K3 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 axb4 d4 e5 fxe5 c5 dxc5 Na6 g5 Nb8 h3 b6 Qd3 Bb7 Qc3 Be7 Nf3 Bf6 gxf6 g5 Qd2 g4 Ng1 g3 Qd6 Bf3 Qd1 Bg4 hxg4 Ra3 Bd2 Ra5 Bc1 Ra8 e4 Kf7 a4 Ke6 f7 d5 f8N+ Ke7 c6 b5 a5 g2 c7 b3 c8N+ Kf7 a6 b4 a7 h6 e6+ Kf6 e7 b2 e8Q d4 Ne6 d3 Qf3 Rh7 Nd6 Nd7 Nd2 b1R Nb7 Qc8 Rh4 Rf7 Nd4 Kg5 e5 Nf8 e6 Rb2 e7 Rb8 a8Q Rg7 Nd8 Rb5 Qf7 Rc5 e8R Ne7 Q3d5 Neg6 Ngf3+ Kf4 Qdb7 Kg3 Re4 g1Q Ne5 Rd5 Qc6 Rd7 Nb7 Re7 N4b3 Qb6 Bg2 Rd7 Rc4 Rd4 Bh1 Rf4 Nd4 Rf2 Qe4 Rh2 Qe2 Rg8 Bc6 Rg7 Nb1 Rg8 Be3 Rg7 Nd2 Rg8 Rc1 f4 Rh5 Rg7 Rf5 Kh3 Rf6 Nh8 Re6 Rg5 Re7 Nhg6 Qf2 Rh5 g5 Rh4 Nef3 Rg4 Re4 Qcc7 Ne5 Qc8 Qg2+ Kh4 N2b3 d2+ Kf2 d1Q Nd2 Qf3+ Ke1 Qb5 N4b3 Qa6 Ba7 Qa5 Bb8 Qb6 Qf2+ Kh3 Nd4 Qbd8 Qe2 Qb6 Qg2+
1Q2N3/1NBRqP2/n3B1R1/3Q1bpk/2r1p2R/p2nq3/P1N1N1K1/qq3B2 b - - 0 1 legal: proof: g4 b5 c4 f5 gxf5 d5 e4 dxe4 b4 c5 bxc5 a5 h4 g6 f4 Ra7 h5 Nf6 h6 Ng8 f6 Rc7 f5 Bg7 hxg7 Rc6 Nc3 Rd6 Nb1 Rd5 cxd5 Qb6 Nh3 Qd6 Ng1 Qd8 Kf2 Kf7 d4 h5 d6 e5 c6 h4 c7 a4 d7 b4 d5 b3 d6 b2 Kg2 e3 Ne2 e4 Na3 b1Q Nc2 Qf8 d8R a3 d7 Nh6 g8N Qe7 Qd2 Ng4 Qd5+ Qe6 Bd2 Na6 Ba5 Ne5 Bb6 Nd3 Ba5 Bb7 c8B Rh5 Bc7 h3+ Kg1 h2+ Kg2 Qb2 Rb1 Qa1 Rb6 g5 Re8 Rh7 Re7+ Kf8 f7 Kg7 f6+ Kg6 d8N Kh5 Rd7 Qe7 f8Q Rg7 Ned4 e2 f7 e1Q Rf6 Qe3 Ne2 Rg6 Rfd6 Bc6 Nb7 Ba4 Rb6 Rc6 Qd8 Rc4 Nf6+ Kg6 Ne8+ Kh5 Rg6 Bc6 Qa5 Bd5 Qb5 Be6 Qd5 Qb1 Rd6 Bg4 Be6 Bf5 Rd7 Qa1 Qb8 Qd2 Kg3 Qdc1 Bh3 Qcb1 Rf1 h1Q Rf4 Qhc1 Bf1 Qd2 Kg2 Qe3 Rh4+
b1K2QB1/2R3Nb/N1Q2qP1/1b3n1P/N4p1k/Qb2pp1N/Rb5B/R2n4 b - - 0 1 illegal: No proof kernel
n5K1/1nr4n/B1Q1pN2/1Pr1k1Bp/RN1RP1r1/R1B2p1R/qr2N3/5Q2 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 a5 axb5 d5 cxd5 a4 f4 gxf4 b4 Bd7 g5 Bg7 h3 Bg4 hxg4 Bd4 Ba3 Bb6 Bc1 Ba5 bxa5 Ra7 Ba3 Ra6 Bc1 Ra8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 Kf5 c5 e4 f3 d4 f6 Kg6 a3 Kf7 f2 g6 c4 a6 f5 g5 a2 a7 c3 g7 f4 g6 c2 Bh3 f1N Bb2 c1R Na3 f3 Bc8 e6 Ba6 Qh4 Ne2 Qh3 Bc3 Rh7 Nc2 Nh2 Nb4 Rb1 Qf1 Nh6+ Kf8 Qg3 g8Q Rc7 g7 N2g4 Rh3 Nf6 Qh7 Qf4 g8N Qh2 Qg6 Nf5 Qe8 Nbd7+ Kf7 Ng4 Nf6 Nb6+ Kg8 Rac8 a8R Rb2 Ra7 Rc5 Ra8 R8c7 Qc6+ Ke7 Ra7 Nd6 Ra8 Qg2 Ra7 Nb7 d6+ Kd8 d7 Ke7 d8R Na8 d5 Qf2 Rd1 a1R Rd3 Rd1 Be1 Qh2 Ra3 Qg2 Bc3 Qh2 Qg2 Rg1 Qf1 Rg3 Kh7 Rg1 d6+ Kf7 d7 Qf2 Nfd5 Nf6+ Kh8 Nh7 Nf6 Kg6 Kg8 Rg3 Re8 Rg4 d8B Qe1 Re7 Qb1 Rd7 Qa2 Rd4 Kg5 Nc1 Rh4 Ra4 Kf4 Ne2+ Ke5 Nfd5 Rd2 Bg5 Rb2 Nf6 Rg4 Ra3 Nd8 Bc8 Nb7 R7a4 Nd6 Ba6 Nb7 Qe8 Rg2 Qd7 Rg4 Qc6
2n2B2/BRR5/rQp1BKNp/b2Pn1Q1/R3b2N/2B2p2/P4nk1/2Q3bb b - - 0 1 illegal: No possible last move
3BNRR1/P2N2BB/2b3q1/Q2p2Qn/p2N1nB1/2k1p2q/P2nR2n/2Kn4 b - - 0 1 legal: proof: f4 f5 e4 b5 d4 a5 b4 h5 h4 c5 g4 a4 e5 Qb6 e6 Ra5 bxa5 g5 Nd2 Rh7 Nb1 Rf7 exf7+ Kd8 Ba3 cxd4 Bc1 Kc7 gxf5 g4 f6 Kc6 f5 Qd8 Bf4 Bh6 Bc1 Bg5 hxg5 Bb7 Bf4 Ba6 Bc1 Bc8 Kd2 Kd5 f8R e5 c4+ Kc5 g6 Kb4 f7 d5 f6 e4 g7 d3 a6 g3 c5 g2 c6 h4 c7 h3 a7 h2 Qe1 Bb7 c8B Bc6 Nc3 Qe7 Nge2 g1N Nd4 Qd6 Bg4 Ne7 g8Q Nd7 Qg5 Ng6 Rg8 Nf4 f8B Kc4 f7 b4 Ncb5 b3 Bg7 b2 f8N Nf6 Nd7 N6h5 Nc7 Qg6 Ne8 b1N+ Kd1 Nf3 Qa5 Nbd2 Bfh3 Nf6 Re1 N6h5 Re2 h1Q+ Bf1 Qh2 Rb1 Qh3 Rb8 Nh2 Bb2 e3 Kc1 Ba8 Bf6 Bb7 Bd8 Bc6 Bg2 Nb1 Be4 d2+ Kc2 d1N Kc1 Nd2 Bc2 Qf7 Bh7 Qg6 Rb6 Ba8 Rf6 Bc6 Rff8 Kd3 Nb5 Kc4 Bg7 Kd3 Nd4 Kc4 Qb6 Kc3 Qa5+
1kq4N/2nB2KR/1Q1n1n2/2BR1Q1r/R2B1p1p/3qN1p1/4QPP1/1qn2R2 b - - 0 2 legal: proof: b4 a5 a4 b5 h4 g5 Bb2 g4 Bc1 c5 axb5 cxb4 Ra4 Ra6 Ra3 Rg6 Ra1 Rg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 d4 d5 c4 Qb6 c5 Bg7 c6 Qd8 e3 Be6 e4 Be5 Ra3 Bd6 Ra1 Bc5 dxc5 d4 Be3 Ba2 Bc1 Bd5 exd5 Qd7 Na3 Qc8 Nb1 Qd8 Ke2 e5 Kd3 h5 Ke4 d3 Kf5 g3 b6 b3 c7 Kd7 c8R h4 b7 a4 d6 f6 Kg6 e4 c6+ Ke6 c7 Kd7 Kg7 d2 g6 e3 Ne2 f5 Ba3 b2 Bc5 a3 Nbc3 b1Q Nf4 a2 Ncd5 e2 Ne3 e1N Bb5+ Nc6 b8Q Qb3 Qe2 d1N Rf1 Qd3 Qb6 Rh5 Rb8 Qc8 Rb7 Nc3 Rd1 Qc4 Rd5 a1Q Ra7 Nf6 Ra4 Nce4 Bd4 Ke8 d7+ Ke7 Bc5+ Nd6 d8B+ Kd7 Bd4 Nd3 Be7 Qb1 Bf8 Qd8 c8R Qe8 Rc7+ Kd8 Rf7+ Kc8 Rb7 Nb8 Bc6 Nf7 Bfc5 Na6 Ra7 Nc7 Bd7+ Kd8 Rb7 Nc1 Bc6+ Qd7 Kf8 Qcb3 g7 Kc8 g8Q Nb5 Qgg4 Q3d3 Ng6 f4 Qf5 Nfd6 Nh8 Qe6 Rh7 Nc7 Qa5 Kb8 Kg7 Qe8 Bd7 Qc8 Qb6+
1n2kR1B/1N3qPQ/N1p1R1p1/2b2N1r/1p1R3P/1p6/Bbn2N1Q/1K1Q1r2 b - - 0 1 illegal: No possible last move, all moves rejected
4N3/2nQ1b2/q1r1b1P1/B1RB4/Q7/bQP1pp1n/RpK1kNp1/1NR1N3 b - - 0 1 legal: proof: d4 b5 e4 c5 dxc5 d5 exd5 h5 g4 g5 b4 a5 gxh5 axb4 f3 g4 f4 Ra6 Kd2 Rg6 Ke1 Rg5 fxg5 Qa5 Ke2 Qb6 Ke1 Qd8 Kd2 Kd7 a4 f5 h4 e5 a5 e4 d6 Kc6 g6 Kd5 d7 Kd4 h6 g3 a6 g2 a7 b3 a8N f4 c6 b4 h7 f3 h5 b2 h6 b3 c7 Nc6 Nh3 Qf6 d8Q+ Bd7 c8R Qe6 Ra2 Na5 Bc4 Bd6 Nc7 Nf6 Nf2 Ne8 Bd5 Nc6 Qe7 Rg8 h8Q+ Ne5 h7 Ba3 Qd6 Rg7 Qg8 Nd3 h8N Nf4 Nf7 Nh3 Ne5 Qf6 Qe7 Qa6 Ned3 Be6 Ne1 Rf7 Rg1 Rf6 Qd7 Bf7 Rf1 Rc6 Rh1 Nd6 Ne8 Nb5 Rg1 Nc7 c3+ Ke5 Qc2 Kf4 Kd1+ Kg3 Bg5 e3 Bd8 Be6 Qe4 Bf7 Qa4 Be6 Nd2 b1B Qgf7 Bbf5 Nb1 b2 Qg8 Bg4 Kc2 Bf7 Rh1 Bge6 Rg1 Nb5 Ba5 Nc7 Ned3 Rc5 Rc1 Rc6 Ne1 Kh2 Qf8 Kg1 Qfb4 Kf1 Qbb3 Ke2 Rb8 Na8 Rb5 Nc7 Rc5
1K1Q2n1/4pN2/1B5p/B1RNQ1p1/3qrnBP/1kNr3B/Rp1P2q1/5Qb1 b - - 0 1 legal: proof: e4 c5 g4 d5 exd5 b5 a4 f5 gxf5 a5 axb5 Ba6 b4 cxb4 bxa6 Qc7 Ra2 Qd6 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 h4 g5 c4 h6 f4 b3 a7 Kb4 d6 a4 Kd5 a3 c5 a2 f6 Ka4 c6 Nd7 c7 Ne5 c8B Qd7 f5 Qc7 d7 Nf3 d8B Qb8 Kc6 Bg7 f7 Qh2 Kb7 Ne5 f8Q Qg3 f6 Nf7 Qe1 Ne5 f7 Nc4 Nc3+ Kb4 Bb2 Qd3 Ba5+ Kc5 Bfh3 Bd4 Nf3 Bf2 Qd8 Ne3 f8Q Kc4 Bcg4 Nd5 Qe5 Nf4 Rhc1 Qe4+ Kc7 Rb8 a8N Rb4 Rc2 Bb6+ Kb8 Bg1+ Bb6 Qe2 Nc7 Qg2 N7d5 Ra4 Rac1 a1Q Ba3 Rb4 Ra2 b2 Rc2 Kb3 Qff6 Rc4 Bb4 Re4 B4a5 Qe1 Qf7 Qe3 Qff5 Rd4 Qd3 Re4 Qf1 Qc5 Qe6 Qd4 Ne5 Rh7 Qed6 Rf7 Q6c7 Rf6 Nf7 Rfe6 Qc5 Re3 Qcd6 R6e4 Qe5 Rd3 Nd1 Qb4 Rc5 Qd4 N1c3
3B2B1/B1RP4/nK1Np2n/1N1pq3/4R1q1/Q1Rp1pN1/2Pk1Q2/r1rb2B1 b - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 gxh5 g5 fxg5 c6 a4 Rh7 axb5 Bh6 g6 Rh8 e3 Bf4 e4 Bd6 e5 c5 exd6 cxd4 Kf2 Kd7 h4 Ke6 b4 Kf5 h6 Ke4 b6 a5 b5 f5 g7 d3 h7 a4 h5 a3 h6 f4 b7 a2 b6 f3 Bg5 Bh3 d7 Be6 Na3 Bf7 Ne2 Qc7 Bh3 Ra4 Qe1 Qd8 Be6 Ra8 Rh4+ Ke5 Ke3 Be8 Ng3 Nf6 g8Q Ra6 Qf2 Qc8 Nb5 Qc3 Qf8 Qa5 Bg8 e6 Qa3 Bh5 Rc4 Qb4 Re1 a1Q Rc7 Ne8 Bd8 Bg4 Re2 Ra7 Rc3 Na6 b8B+ Nd6 b7 Ra8 Ba7 Nf7 b8R Bh3 Rb7 Bf1 Re1 Be2 Rbc7 Bd1 Re2 Qe7 Re1 Kf6 Kd4 Kg5 Re5+ Kf4 Re1 Qg5 Re5 Nb8 Kc5 Qg4 Kb6 Na6 Re1 Nd6 Bf7 Rg8 h8N Nf5 h7 Nh6 Re2 Rg5 Bg8 Rh5 Nf7 Rh1 h8B Rg1 Rb3 Qe5 Bg7 Re1 Bf8 Rf1 Bc5 Rh1 Nfd6 Rg1 Qh2 Rf1 Bg1 Re1 Rf2 Ke3 Rbc3 Rf1 Qh4 Re1 Rf1+ Kd2 Rf2+ Be2 Rf1 Rc1 Re1 Bd1 Re4 Nb4 Bb8 Ra5 Ba7 Na6 Qc5 Raa1 Qa3 Qgg5 Qh3 Qh5 Qf1 Qg4 Qf2+
8/p3Qr1N/Pb6/B2Kp1NR/2Pp1Q1q/1bB1rB1R/N2n2p1/q2Nk2Q b - - 0 1 legal: proof: e4 e5 d4 c5 dxe5 c4 b3 f6 bxc4 Kf7 e6+ Ke7 e5 Ke8 g4 fxe5 c3 b5 Bg5 h5 gxh5 b4 Bc1 b3 Nf3 Na6 Ng1 Nb4 cxb4 Rh6 Be3 Rh7 Bc1 Rh8 Ke2 Ke7 Kd3 Kf6 Ke4 g5 h4 d6 a4 g4 f4 b2 h6 g3 e7 g2 e8Q Qa5 f5 Bg7 h5 Bd7 h7 Qb5 a5 Qc5 a6 Ne7 h6 Ba4 b5 Qa3 b6 Nd5 b7 Rg8 h8N Rc8 b8B Bf8 h7 Rd8 Nf7 Nc7 h8Q+ Bg7 Be2 Rd7 Bd2 Rf8 Qc1 Qg3 Rh3 Bb3 Nc3 Nd5 Na2 Ne3 Bc3 Nf1 Bc7 b1Q+ Kd5 Nd2 Bf3 Qh4 Ng5 Rdf7 Ne2 Rg8 Qh5 Bh6 B7a5 Qb2 Rb1 Qa1 Qf1 Rgf8 Qf2 Rh8 Rbh1 Bf8 Qf1 Be7 Qf2 Bd8 Qf8 Bb6 Qe7+ Kg7 Qg3 Rh7 Qhg4 Kh6 f6 Kg6 Qd4 Kf5 Qh2 Rh8 Bb2 Rh5 Nec3 Rhh7 Nd1 Rh5 Kc6 d5 Bbc3 Rh6 Qf2 d4 Kd5 Rg6 Nh7 Rg4 Ng5 Rg3 Qf1 Kf4 Qf2 Rg7 f7 Rh7 f8N Rf7 Be4+ Kg4 Nfh7 Rd3 Qff6 Re3 Qh6 Rg3 Bf3+ Kf4 Nb2 Ke3 Qhf6 Kf2 Qf4 Qf1 Nd1+ Ke1 Bh5 Re3 Bf3 Qg3 Rh5 Qf2 Qg1 Qg3 R1h3 Qh4 Qgh2 Qd3 Qef6 Qb1 Qe7 Qa1 Qh1+
1R4nq/B6R/B2p1Np1/N3Pp2/1p1n1q2/1QB2NbK/1Q2N1RP/n2rk3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 d6 gxh5 Bg4 e5 Bd7 e6 Bc8 f3 b5 Be3 Bd7 Kf2 Ra3 Bc1 Re3 Qd2 Re4 Qd5 Qc8 exd7+ Kd8 Be2 e5 Qd1 Ke7 Bc4 Qd8 Bf1 Rd4 Ke1 e4 Ke2 e3 Ke1 Re4 fxe4 Qe8 Qd2 Qc8 Qd1 Qd8 c4 Kf6 a4 Kg5 c6 Kf4 c5 f5 c7 g6 c8N b3 h6 b2 c6 b4 h7 Qc7 d8N Bg7 a5 Qa7 c7 Na6 Ne2+ Kf3 Nb6 Qa8 c8Q Nf6 Nd5 Rg8 h8B Nc7 a6 Nfe8 a7 Rf8 Nf6 Ne6 Qc3 Qc6 a8R Qc8 Qdb3 Nd4 R1a7 Rf7 Qcc2 Rc7 Nc6 Bh6 Rb8 Bf4 Rg1 Bg3+ Kd1 Kf2 Na5 Rc3 Nd2 b1Q Rh7 Rd3 Bg7 Qa2 Bb2 Qc4 Bc3 Qg8 e5 Qh8 Qcb2 Qa3 Bh6 Qa2 Nh5 Nf6 Bg5 Ng8 Bd8 Bh4 Nf6 Bg3 Bb6 Qa3 Ba7 Qa2 Q3a3 Qf7 Qab3 Qc4 Kc1 Ke1 Rg2 Nf3 Kc2 Qf4 Kc1 Rd5 Kc2 Nd4+ Kd3 Qh4 Ng1 e2 Ke3 Nc2+ Kf3 Na1 Rf2 Qf4+ Kg2 Rc5 Kh3 Rc8 Bcd4 Rc1 Bc3 Rb1 Bg2 Rd1 Bb7 Nc2 Rg2 Nd4 Nde4+ Kf1 Bc8 e1N Ne2 Nec2 Nd2+ Ke1 Ba6 Na1 Nf3+
3K3Q/B2n4/1p1P1p1N/1b1B1N2/pRRpbR2/n2PN2N/3kQqqn/6B1 b - - 0 1 legal: proof: g4 h5 f3 e5 f4 exf4 gxh5 d5 c4 d4 Bg2 Rh6 Bh3 Rd6 Bf1 Rd5 cxd5 Be7 Nc3 Na6 Ne4 Nh6 Ng5 Qd6 Bh3 Be6 Kf2 Kd7 Kf1 Rh8 Ke1 Bf8 Bf1 Nb8 Ne4 Ke8 Nc3 Bc8 Nb1 Ng8 Qc2 Qf6 Qd1 Qd8 a4 g5 a5 b6 a6 Nc6 Nc3 Be7 Bh3 Nh6 Qa4 Bg4 Qc2 Qd6 Ra2 Kd7 Qd1 Rb8 Nb5 Ke8 Qb3 Ng8 Ra1 Bc8 Na3 Rb7 Nb1 Bf8 Qd1 Qd8 Bf1 Nb8 axb7 a5 Qc2 a4 Qd1 Bb4 b3 Ba5 b4 Bg4 bxa5 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 c5 h4 f3 d3 g4 h6 f2 d6 g3 h5 g2 h7 c4 h8Q c3 a6 c2 h6 Qd7 a7 Qh3 a8R Qe3 h7 Be6 Nd2 Kc3 Rb1 Bb3 Nh3 g1Q Nc4 f6+ Ke6 Qg2 e5 Qc6 Bg2 f1B Bd5 Nd7 b8B Qc7 Ba7 Bg2 Rf1 Bf3 Qe2 Qg5 Ne3 Qc6 Rc8 Nh6 Ke7 Qg1 e6 Ng4 Kd8 Qf2 e7 Nh2 e8N Be4 Ng7 Bc4 Rb4 Ba6 Ngf5 Bb5 Nc4 Qb7 Be3 c1N Rc7 Nb3 Rc8 Qe1 Rf4 Nd2 Bg1 Qf2 Nce3+ Qc6 Qg8 Nc4 h8N Na3 Nf7 Qf3 N7h6 Qf2 Qf1 Kd2 Qh8 Qb7 Rcc4 Qa8+ Kc7 Qg8 Qg2 Qg6 Kd8 Qg7 Qf3 Qgg2 Qe2+
nK6/N1B3pB/4pnB1/2P2R1Q/k5Qr/P3RQpp/1nNn2q1/2bN3Q b - - 0 1 illegal: No proof kernel
1K2Q2b/5Npr/2r1pp1B/4RN1q/RB3P2/1qP1Q1pb/4Q1R1/3Bb1kB b - - 0 1 illegal: Other
K3NR1Q/1n4RB/kbP1Q1P1/B2Nn3/r1Rp1p2/2Q2p1p/N2n4/1b4Rn b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 exf4 d4 c5 dxc5 f3 Ra6 f4 Ra5 Bb7 Ra1 Bc8 Kd2 g5 Ke1 Qf6 h3 Qf5 gxf5 a5 h4 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bd6 Ra4 Be7 Ra1 Bf8 Kd2 Kd8 Kc3 Kc7 Kc4 Kb7 Kd5 h5 e4 a4 c4 h4 b4 a3 c6+ Ka7 c7 h3 c5 g3 b6+ Kb7 f6 d6 f7 g2 b5 a2 e5 Rh7 e6 Rh4 e7 Rh8 e8N Bg7 f8R Bd7 c8R Nh6 Qc2 Be5 Ne2 g1N Qc3 Rh7 Bd2 Nc6 Nc1 Bd4 Bd3 Ne2 Rg1 Rg7 Bh7 Ng3 g6 Bf2 Rc7+ Kb8 b7 Ka7 b6+ Ka6 b8Q Nh1 b7 Bf5 Qc8 Nf7 Qe6 Bc2 b8Q Nfe5 Qd8 Rg8 Rg7 Na5 Qb8 Nb7 Be1 Nd7 Kc6 Ne5+ Kc7 Be3 c6 d5 Qbc8 Bf5 Kb8 Bb6 Ka8 d4 Qe3 Ba5 Nc3 Bb1 Nd5 Bb6 Ba5 Rh8 Bg8 Rh5 Bh7 Rg5 Qc3 Rg2 Re7 Rb2 Rd7 Rb4 Rg7 Ra4 Qd8 Bc2 Rb1 a1N Rb4 Nb3 Na2 Nd2 Rc4 Be4 Qdf6 Bb1 Rc7 Rb4 Qh8 Ra4 Rg7
3Q2nB/1RR1pQNQ/6nb/n1PnN2p/4kp2/NPrB4/K2B1r1p/N7 b - - 0 1 legal: proof: g4 c5 e4 d5 h4 g5 a4 gxh4 d4 b5 dxc5 d4 axb5 Qd5 exd5 Nc6 f3 Bd7 g5 Bg4 fxg4 Nb8 Kd2 Kd7 c4 h5 Kc2 a5 Kb3 f5 g6 f4 b6 d3 d6 Ke6 c6 Ke5 g7 h3 d7 d2 d8N a4+ Ka2 h2 b3 a3 g5 Kf5 b7 Na6 b8B Nc7 g6 Na6 c7 Nf6 c8N Ne4 g8Q Rh7 g7 Rh6 Nd6+ Ke5 Bd3 Nac5 Qh7 Ne6 g8Q Nf6 Qgf7 Ng8 Ne2 Rf6 Rg1 Bh6 Nd4 Nf8 Nc2 Ng6 Nf5+ Rd6 Ba7 Rc8 Ng7 Rd4 Rh1 Re4 Re1 Re2 Be3 Rf2 Bb2+ Kd6 Nc6 Rc7 Qe2 d1N Bd2 Ne3 Qd1 Nd5 Bf6 Rc8 Re6+ Kc5 Ne5 Rc7 Rb6 Rc8 Ne1 Kd4 Rb7 Rc7 Nc3 Rc5 Rc1 Rc7 Nb1 Rc6 Ka1 a2 Na3 Rc7 Kb2 a1N Kb1 Nc2 Ka2 Nce3 Nec2+ Kc5 Na1 Kd4 Qg4 Rc6 Qc8 Rc5 Be2 Ke4 Qd8 Nf5 Rc3 Nd4 Rc1 Nc6 Bd3+ Kd4 Ne8 Na5 Bh8 Rb5 Ng7 Rb4 c5 Rc4 Rg1 Rc3 Rg5 Nf8 Rf5 Ng6 Rf6 Rf3 Rc6 Rf2 Bc4 Ke4 Rcc7 Rg2 Bf1 Rf2 Bd3+
1bbn2b1/1p5p/1R2r1p1/7k/b1p2RRb/K1P3P1/2QNN1QQ/1NRB1B2 b - - 1 2 legal: proof: b4 d5 h4 e5 a4 a5 f4 f5 d4 c5 e4 c4 exd5 g6 b5 e4 g3 e3 h5 e2 b6 Na6 h6 Bd7 c3 Ra7 bxa7 Qc7 Ba3 Nb8 Bb4 axb4 a5 Ke7 a6 Nc6 Kd2 Ne5 fxe5 Qc6 Rh5 Qf6 Rh1 Qg7 hxg7 Ba4 Bh3 Be8 Bf1 Bd7 Kc2 Kf7 Kb2 e1B a8R b3 d6 f4 d5 f3 a7 f2 e6+ Kf6 e7 Kg5 e8B Bg4 d7 Bc5 d8Q+ Nf6 g8N Bd7 d6 Bd2 Qc2 Ba4 d7 Bde3 Rh4 Bd6 Rf4 Kh5 Ne2 Bb8 Ka3 b2 Qe7 Ne4 d8R Ng5 Rdd4 Bd2 Qee4 Ne6 Qg2 Nd8 Rg4 Bh6 Rdf4 Bg5 Bb5 Bh4 Nf6+ Kh6 Ne4 Kh5 Ned2 Re8 Bc6 Re6 Be4 Be8 Bc6 Bf7 Bf3 Bg8 Qh2 Bc7 Rc8 Be5 a8Q Bb8 B1g2 f1B Rc6 Re5 Rb6 Re6 Ng1 Bd3 Bd1 Be4 Bf1 Bc6 Ne2 Ba4 Kb4 Bd7 Qa2 Ba4 Na3 b1B Qab2 Ba2 Rc1 Bd7 Qg2 Bc8 Nab1 Bb3 Ka3 Ba4 Qh2 Nc6 Qe4 Nd8 Qeg2 Nf7 Qa2 Nd8 Qc2
n1QQ4/3B4/Np1K2n1/PkrR1r1B/p1p4Q/p2p1NP1/1qR3Q1/4bRB1 b - - 0 1 illegal: Other
1Bn3Q1/2n1p1q1/N3RP2/2QN2P1/3p1pNk/rBbNp3/1p1RRnK1/2B5 b - - 0 1 illegal: Other
1q2Q1n1/4p2R/R1r4N/2Rq1P2/N4rp1/Bp1p2Bp/1KBkP1RQ/1b5N b - - 0 1 legal: proof: g4 b5 d4 a5 b4 axb4 a3 f5 gxf5 c5 dxc5 b3 Bg2 b2 Bf1 b4 h4 g5 Ra2 g4 Bf4 b3 Ra1 Na6 Bc1 Nb4 axb4 Bg7 Qd3 Bh6 Qd1 Bg5 hxg5 Kf7 Nd2 Kf8 Nb1 Ke8 Kd2 Kf7 Kc3 d5 f4 h5 g6+ Kf6 c6 h4 g7 Rh6 b5 Ra4 b6 Bd7 b7 Qb6 b8B Ra7 c7 Qe6 c8Q Ra4 Qe8 Rh5 Nh3 Bc6 Bg2 Rh8 Qg1 Rb4 Be4 Ba8 Qh2 Rd4 Nf2 Qd6 Ra6 Nh6 g8N+ Kg7 Rg1 h3 Nh1 Kh7 f6+ Nf5 f7 Kg6 Rg2 Rh6 Bc7 Kh5 f8R+ Rg6 Bb8 Nh6 f5 Kh4 Bd3 Rf4 Rf7 Kg5 Rh7 Qd8 Bd6 Qb8 Ba3 Rf6 Bd2 Bb7 Be1 Rd6 Bg3 d4+ Kd2 Bd5 c4 Rc6 c5 Be4 Nc3 b1Q Na4 Qa2+ Kc1 Qd2+ Kb1 Qa5 Kc1 Qad8 Kb2 Qd5 Bc2 Bd3 Bd1 Bb1 Bc2 d3 Rf2 Rg6 c6 Rd6 c7 Rc6 Nf6 Ng8 c8R Rb6 Rc5 Re6 Rg2 Rc6 Bf2 Rf3 Rg3 Kf4 Be1 Ke3 Rg2 Rf4 Bg3 Qa8 Ne4 Qc8 Nd6 Qb8 Nf7 Kd2 Nh6
1K4NQ/p1n2p1p/1p1n2P1/kb1QpBN1/3b4/b1BBR1Q1/1PN1Q1R1/1q6 b - - 0 1 legal: proof: f4 e5 h4 Ke7 a4 g5 c4 gxh4 e4 d5 exd5 b6 d4 Ba6 a5 Nf6 c5 Nc6 f5 Bc8 a6 Ng8 d6+ Kf6 d5 Nb8 c6 Qd7 cxd7 Nc6 Nf3 Rb8 Ng1 Rb7 axb7 Nb8 Qa4 Nh6 Qb3 Rg8 Qf3 Rg6 Qd1 Ng8 Be2 Kg7 Bf1 Re6 fxe6 Kf6 Ke2 c5 Ke3 c4 Ke4 h3 d8N h2 g4 c3 g5+ Kg7 g6 Kf6 d7 Ke7 d6+ Kf6 Kd5 c2 e7 Nc6 b8Q Bb7 e8B Kf5 Bd3+ Kf6 Nc3 Nh6 Qe2 Be7 Ra3 Ba6 Nh3 Bb5 Na2 Bf8 Rg1 h1Q+ Rg2 Nf5 Nb4 Na5 Ndc6 Qh2 d8Q+ Be7 d7 Qg3 Bd2 c1B Ng5 Nd4 Bc3 Qe1 Qdc8 Bf8 Ne7 Nb7 d8Q Be3 Qh3 Qb1 Bd7 Nd6 B7f5 Ne6 Qg3 Bd4 Qa8 Ba6 Kc6 Nc7 Kd7 Bc4 Qd5 Bb5+ Nec6+ Be7 Qe8 Ne4 Kc8 Nd6+ Kb8 Bf8 Rb3 Be7 Qg8 Bf8 Na5 Ke7 Qh8 Kd8 Nac6+ Ke8 Ne7 Kd8 Ne6+ Kd7 Ng8 Be7 Qdf3 Bf8 Nd5 Kc6 Ng5 Nde8 Qfe4 Ba3 Nb4+ Kc5 Q4f3 Nd6 Qfe4 Bc4 Qa8 Kb5 Qc6+ Ka5 Qd5+ Bb5 Bc4 Ne6 Bd2 Bc5 Re3 Bd4 Bcd3 Nc7 Be1 Ne6 Bc3 Nc7 Nc2+
R1N1rnB1/n1pB2nB/1pP5/1P1q1R2/1Q3RK1/2N1p3/pqpkR2Q/7Q b - - 0 2 illegal: No possible last move, all moves rejected
B5nq/r1b2q1n/N2RqB2/2r3Q1/NKb1n1Q1/3P2r1/bRP2Bk1/Q2Q3R b - - 0 1 illegal: No proof kernel
qqnQ4/2NB2nk/r2n4/N3q1rB/1Q1B2R1/1NP3R1/Bb3P2/r1b1QbK1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 b4 Kf7 g4 Kg7 g6 a5 c3 d5 g5 h5 b6 e5 b5 a4 b7 d3 b6 d4 Nh3 a3 Be2 d2+ Kf1 a2 Ba6 d3 Qe1 d1R Nd2 e4 Nb1 h4 Be3 d2 Be2 Ba3 Nf4 h3 Bh5 h2 Nd5 Ra6 Rg1 h1Q Bd4+ Nf6 Nc7 Nc6 b8N e3 b7 Na7 Nc6 Rg8 b8Q Bc1 Na5 Qa8 Rg4 e2+ Kg1 Bd7 Rg3 Nc8 Qb4 Bb5 Rg4 Kh8 g7+ Kh7 Rg3 Ne8 f6 Ned6 f7 Bd3 f8Q Qe8 Qe7 Qb5 Qd8 Qbb8 Qf1 e1Q g6+ Kh6 Rg4 Qe5 Qe1 Bf1 Rg3 Rf8 g8B Rf5 g7 Rg5 Be6 Kh7 Qe3 Re1 Bd7 d1N Qe2 Ne3 Nd2 Rd1 Ndb3 Nef5 Rb1 a1B Qe1 Bab2 g8B+ Kg7 Bc4 Kh7 Ra1 Ng7 Ra2 Ba3 Re2 Bcb2 Re4 Ra1 Reg4 Bc1 Nc5 Bab2 Ba2 Rc6 Ncb3 Rb6 Be6 Ra6 Bd7
qb2R1K1/B3q3/NN6/nR2Q3/2QrR1B1/1PrqPnkn/1r2b1b1/QRN5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 h4 f5+ Kd4 g5 h6 g4 h5 f3 b6 f2 h7 g3 h6 g2 b7 f4 b3 f3 Qc2 a4 Rh4 a3 Nc3 a2 Re4 Qe7 Rb1 Bh3 Na4 Nf6 Qc4 Ng4 Nb6 a1Q+ Bb2 Rg8 h8Q Ra4 h7 Ne5 Qg7 Rb4 h8Q Qa8 d3 c6 Bc1 Ra4 Be3 Ra2 Qg3 Rb2 Qh2 Rg4 Qg3 Na6 b8N Nc5 Na6 Nb7 Qf4 Na5 Qh2 Qh7 Qh1 Bh6 Qe8 Bf4 Qb8+ Ke7 d6+ Kf6 d7 Kg5 d8R Kh4 Rd5 Qe7 Rb5 Kg3 Qd6 Rh4 Kc5 Bg4 d4 Bh3 d5 Bg4 Nh3 g1N Bg2 f1Q Nf2 Bh3 Nd3 f2 Bf3 Bg2 Bg4 Nef3 Nc1 Nh3 Bd4 Qd1 e3 f1B Qg1 Be2 Qh1 Qea7 Qe5 Qd3 Kd6 c5 Ke6 Qc7 d6 Qcb7 Qa4 c4 d7 c3 d8R c2 Qc4 Qg7 Re8 Qg5 Qed5 Bb8 Kf7 Qd8 Kg8 Qe7 Na2 c1R Qe5+ Kf2 Bc5 Rcc2 Nc1 Rc3 Bh5 Rf4 Bg4 Kg3 Ra1 Ra2 Na4 Qf6 Ba7 Bd6 Rd4 Bc5 Nb6 Rb2 Na2 Bd6 Qb1 Bc7 Nc1 Bb8 Qa2 Qd6 Rb1 Qe7 Qa1 Kf2 Rd6 Re4 Rf6 Rd4 Rf4 Kg3 Re4+
n1k5/P1B5/Q1rR1nN1/3Q1N1q/2P1B1q1/NK3QbQ/1nRRb3/1q2rrb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 d5 a4 Kd7 c4 g5 Kc2 b5 h4 e5 f4 g4 a5 g3 c6+ Kc7 f6 e4 f7 g2 f5 d4 f6 d3+ Kb3 d2 a6 e3 h6 e2 h7 e1R h5 Qd4 h6 Qf2 a7 Qh4 Ra6 Bg4 Na3 Be2 Nf3 g1B Rh2 Qg4 Nd4 Bd6 f8R Nd7 f7 Ngf6 Nf5 Bg3 Rd8 Nb6 f8Q Rc8 Bg2 Na8 Be4 Rg8 Qc5 Rf8 h8N Qh5 h7 Rf7 Qc2 d1N Qd5 Nb2 Qc3 Qg4 Qf3 Rf8 Kc2 b3+ Kc3 Rf7 Ng6 Qh5 h8Q b4+ Kd2 Re7 Rf2 Rf1 Rd6 Qg4 Qh3 Re6 Rh2 Rce8 Rd7+ Kc8 c7 Rc6 Rg2 Nd1 Rh2 b2 Kc2 Re5 Kb3 b1Q+ Bb2 Qd3+ Bc3 Nb2 Rd6 Re6 Rb6 Qd2 Be5 Qdg5 Ra6 Q5h5 Rd7 Rc5 Rad6 Rc6 Bf4 Bd1+ Rc2 Re8 Bd3 Ree1 Be4 Be2 Re6 Nd3 Qa5 Qhg5 Ka4 b3 Rd4 b2 Kb3 Q5h4 Qd5 Kb7 Bd6 Qhh5 Bf4 Ne5 Rdd2 Nd3 c8Q+ Kb6 Qcd8+ Kb7 Q8a5 Kc8 Bc7 b1Q+ Ka4 Rf2 Rd6 Nb2+ Kb3 Rff1 Qa6+
bR2n2b/BN3r1N/3n3K/b2Q1bQP/1b2R1rP/Q1B5/BN4rn/kB5q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 h4 Ke5 e4 Kd4 b4 f5 d6 c5 b6 a5 e5 g5 e6 c4 b7 g4+ Ke2 c3 b5 c2 e7 f3+ Kf2 f4 e8B a4 d7 a3 b6 a2 Bf7 Ra7 Nh3 Bb4 Ng5 Nf6 Bd3 Ne8 Nh7 Rg8 Nc3 Nc6 b8Q Ne5 b7 Nc4 Qa8 Ncd6 Bb2 c1B Rb1 a1B b8B Rg5 Re1 g3+ Kf1 f2 Kg2 f1B+ Kf3 g2 Ba2 Qb6 d8N g1R Nb7 R1g2 Re5 R5g4 Na4+ Bc3 Bf5 Qc6+ Re4+ Kd3 Bg6 Bb4 Bc3 Bf5 Qb3 Ba5 Qa3 Kc2 d4 Bd2 d5 Bb4 Nb2 Bc4 Nd8 Rf7 Ba7 Ba5 Qb7 Ba6 Qe7 Bb7 Qg5 Ba8 Nb7 Be1 Bf6 Beb4 Bc3 Nc8 d6 Qd5 d7 Ncd6 d8Q Qc6 Bf2 Qd5 Ke2 f3+ Ke3 Qd1 Bg1 f2 Qd7 Qd5 Kf3 f1N Ba7 Nh2+ Ke3 R4g3+ Kf4 Qd1 Qe6 Qh1 Qd5 Rd3 Qg4 Rd4 Kg5 Rc4 Kh6 Rd4 Re5 Rc4 Qg5 Rcg4 Nd1 Bb2 Re4 Ba1 Bd2 Bh8 Bc3 Bc5 Rb6 Bcb4 Nb2 Nc4 Bb3+ Kb1 Ba2+ Ka1 Re3 Bc8 Bgb1 Ncd6 Re4 Bd7 Nd8 Be6 Rb8 Bf5 Nb7
K3b1nN/Rr2b3/NQBr1kBB/r1rP4/4Qn2/R1b5/3QR1nP/2qB2r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 f5 Kc5 g5 b4 f4 e4 a4 d4 c6 e6 f3 d6+ Kf6 b6 a3 d5 f2 b7 g3 e5+ Kg6 b5 a2 e7 g4 e8B+ Kf5 b6 g2 e6 g3 e7 Rh7 d7 Bg7 Bg6+ Kf6 e8B Qc7 d8R Bd7 Na3 Ra6 Nf3 g1R Nc2 g2 Be2 f1N Ne5 Ne3 Nf7 Qc8 Kd6 c5 Qd2 c4 Nb4 c3 Nh8 c2 Bd1 Nc6 b8Q Nd4 Qc7 Ne6 Qc4 Ba4 Rd7 Nf4 Qe4 Ra5 b7 Bf8+ Re7 Re1 b8Q g1R Qc7 Neg2 Qb6 Rg7 Na6 Rf7 Ba3 c1R Bc6 Rcc5 Bc1 Bb5 Ba8 Be8 Bc6 Qf5 Kc7 Qg5 Rd7 Be7 Kb8 Rh7 Ra7 Rf7 Qeb1 Re6 Ka8 Rd6 Qe4 Qh6 Rb1 a1B Rb3 Bc3 Ra3 Re1 Rf1 Qg5 Rf2 Rg1 Qb5 Qg3 Re2 Qe1 Qb6 Rg7 Qdb2 Qd2 Q2b4 Qc2 Be3 Qc1 Qb2 Rf7 Qd2 Ne6 Kb7 Bf8+ Ka8 Rb7 Qdb2 Be7 Bh6 Nef4 Qd2
q6B/Q1N2B1r/2Nn2b1/bPn1NB2/k1b2Q1P/2rR3B/bKn5/R2b1Rr1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 g5 h4 a5 e4 d5 b4 Kd7 c4 f5 Kc2 d3+ Kb3 g4 c5 d2 h6 g3 h7 g2 b6 Kc6 b7 a4+ Ka3 f4 e6 f3 e5 d4 e7 d3 e8Q+ Nd7 b8N+ Kb5 e6 f2 e7 Nf6 c6 Ne4 c7 Nd6 Nc6 Nc5 Kb2 Be6 c8B Ba2 Nf3 g1R Bfh3 f1B Bcf5 Rc8 Qd7 Be2 Qb3 d1B e8B d2 Qe3 Bec4 Qa7 Bc2 Bf7 d1B Qf4 B2d3 Nfe5 a3+ Kc3 Qa5 Be3 Qa6 Bd4 Ka4 b5 Be7 Qb7 Bd8 Qa7 Rg3 Rf1 Rg1 Nd2 Bc7 Ne4 Bb6 Ng5 Ba5+ Nb4 Qb7 Ne6 Qa8 Nc7 Bdb1 B5e6 Bg6 Bef5 Rhe8 h8R Re7 Rd8 Rd7 Bg8 Rh7 Bf7 Bab3 Rc1 a2 Kb2 a1N Nbc6 Nc2 Ra1+ Ba2 Bc3 Ndb7 Rd3 Nd6 Ng4 Re8 Bg7 Re3 Nge5 Rf3 Bh8 Rfg3 Rd4 Rc3 Rd3
1k3BK1/1N1P1r2/QR2b3/2bBQ3/3Pr3/r1nQR2b/2N1bqnN/1n3BNb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 h5 Ke4 c5 Ke5 Kc7 b4 f5 e4 a5 d4 f3 g4 f2 g6 f4 g5 f3 g7 c4 g6 a4 Ra3 h4 Bh6 c3 Qd3 Na6 d6+ Kb8 b6 c2 b7 c1R b5 Be6 d7 Nf6 g8N h3 g7 Nd5 Nf6 h2 g8B Nab4 Ng4 Bc5 Bf8 Nc3 Rb3 Nba2 Na3 Qe7 Nc2 a3 Bf7 Qe8 Kf6 Re1 Kg7 Rh7+ Kg8 Nb1 e5 Nac3 Rb4 a2 Rb2 Bf5 e6 a1N e7 Ra3 Bd5 Re4 Rb4 Qc8 e8N Rf7 Nd6 Be6 Rb2 Nd2 Rb1 Qd8 Re1 Qf6 Re3 Qh4 Bg2 f1B Bh3 Be2 Bf1 Kc7 b6+ Kd8 Nc8 f2 b8Q Ndb1 b7 Qf6 Qa8 Kc7 Qaa6 Kb8 Nd6 Qf5 Nf3 Qf4 Rg1 h1B Ngh2 Qf6 Rg6 Qf4 Nb4 Nc2 Ng1 Ne1 Nc2 Ng2 Nc8 Bf5 Rb6 Be6 Nd6 Ne1 Bg2 f1B Bh3 Qf2 Bg2 B2g4 Bh3 Bfe2 Bf1 Ng2 Bc6 Ref4 Nc8 Kc7 b8Q+ Kd8 Bb7 Bh3 Qe5 Re4 Nd6 Kc7 Bd5 Qf4 Qg7 Qf2 Nb7 Kb8 Qe5+
B3Q1NN/2KP2Q1/R1R1qn2/1rnQN1B1/kP3n2/n3b1Qr/n6r/1bb2B2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 h5 d4 a4 b4 h3 d6 h4 Kd5 c4 b6 a3 f6 a2 g5 e4 f5 h2 g6 e3 b7 e2 g7 e1N f7 h3 f6 c3 Nf3 c2 Bg5 c1N Nc3 Qb6 Ne4 Be7 f8Q Nc2 f7 Na6 b8Q Na3 Qe1 Rh7 Qg3 Nf6+ Ke5 Kc6 g8B Bf5 d7 Rh6 d8Q Nc5 Qg7 Ra5 f8N Rb5 Ng6 Qa6 Rb1 a1B Nh8 Na2 Rc1 Bb2 Rg1 h1N Be6 Ne8 Nf6 h2 Ng8 Bb1 Qa5 Nf2 Bd5+ Kd7 Rc4 h1R Ba8 Bc1 d5 Nh3 d6 Nf4 Rg2 R6h4 Rh2 Rh7 Rh6 Nf6 Qbf8 Rh2 Qff7 Kc8 d7+ Kb8 Rg6 Ka7 Qe8 R7h3 Rc2 Bd8 Rc3 Bb6 Kd6 Nce4+ Kc6 Bbe3+ Kc7 Nc5 Ne5 Rh5 Qa4 R5h3 Qb3 Qe6 Qd5 Ka6 Rc4 Ra5 Rh6 Kb5 Rc2+ Ka4 Rg6 Ncd3 Rc6 Rb5 Rh6 Ng4 Rf6 Nc5 Rg6 Qf5 Rge6 Nf6 Rb6 Qg4 Rec6 Qe6 Ra6+
K4R2/n1Pk4/1RrN2q1/BNQ3NB/bQ6/N3bB1n/1r2P1n1/Rnn2b1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Ra6 d5 Kf2 g5 Kf3 f5 b4 f4 h4 d3 c4 d2 h6 d4 Ke4 d3 e6 g4 c5 g3 c6 g2 b6 f3 e7 f2 b7 Qb6 Kd5 Qe3 c7 Rh7 b5 Qg3 b6 Qg6 h5 Nc6 b8N Bd7 b7 Rf7 h7 Rf6 h8Q Nh6 Qb3 d1N Nh3 g1N Rb6 a5 Bg2 a4 Ng5 d2 Bf3 Ng4 h6 a3 h7 a2 Qb2 Re6 Qhd4 a1N h8N Nh3 Nhf7 Ra2 Na3 Na7 Nc6 Nb3 Qbc3 Bg7 Qdc5 Rb2 Nd4 Ba4 b8R+ Kd7 Ndb5 Bd4 Rf8 Rf6 Kc4 Nge3+ Kb4 Rc6 Nfd6 Na1+ Ka5 Ng2 Ka6 Be3 Kb7 Nb3 Q3d4 Nc3 Ka8 d1R Bd2 Nd5 Ba5 Nc3 Qdb4 Ra1 Rc1 Rab1 Rc2 Rh1 Rc1 f1B Ra1 Nb1 Qd2 Nc1 Qdb4 Qe6 e8B+ Ke7 Bf7 Kd7 B7h5 Qf6 Qcc3 Qg6 Qcc5
1rNq1k1b/n1Q3R1/1B2Q3/KnBQ4/4qqNq/2BP1bP1/BN5q/2Rnr3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 h5 f4 c5 b6 e5 d6 a5 g3 c4 f6 e4 b7 e3 f7+ Kd7 f5 e2 f6 c3 b5 h3 b6 c2 Bb2 c1Q Nf3 h4 Bc3 a4 Nh2 a3 Ng4 a2 Na3 h2 Nc4 h3 Nb2 Bg7 f8B Ne7 f7 Na6 b8Q Nc6 b7 Na7 Qc7+ Ke6 b8B Bb7 d7 Bf3 Bc5 Re8 f8Q Bh8 Qh6+ Kf7 Qhd6 Re7 Qe6+ Kf8 Bb6 Qc2 Rc1 a1Q Bg2 Qab1 d3 Qa4 Kd2 Qba2 Qdb3 e1Q+ Kc2 Qb4 Qbd5 Qee4 Rhf1 h1N Bc5 Nb5 Bba7 h2 Bab6 Nf2 Rfe1 h1Q Re3 Qc8 d8N Na7 Nb7 Nd1 Nd6 Qd8 Nc8 Rb8 Bh3 Qf4 Re5 Qe1 Rg5 Qee4 Rg7 Qbd4 Bg2 Qdf6 Bh1 Qh4 Bg2 Qac4 Bh1 Qh2+ Bg2 Qcd4 Kb3 Qdf6 Bh1 Qfh4 Bg2 Nb4 Ka4 Nc2+ Ka5 Na3 Bh3 N3b5 Ne5 Qhe2 Bf5 Qf2 Ng4 Q2d2 Bg6 Qdh2 Bf7 Qhg5 Qef5 Qe6 Qdd7 Qgh4 Qg6 Qee2 Ba2 Qee3 Qd5 Qed4 Nd6 Re1 Qge6 Qde4 Nc8+
3BNn1n/qB1br3/4bB1q/bR1RR1Bk/1Q1N3P/1qP2K2/b5r1/1b4NQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 e4 d5 h4 f5 b4 Kf7 b6 g5 h6 Kg6 b7 d3 c3 a4 e6 d2 b5 a3 h7 a2 e5 d4 e7 d3 e8R g4 e6 f4 b6 f3 e7 g3+ Ke3 g2 Kf2 Qd6 Qe2 d1B Qe3 d2 Bb5 Ba4 Qe4+ Kh5 Ne2 d1B Bc6 Be6 Bh6 Bdb3 Bd7 Ra7 Bc8 Bad7 Bg5 Nh6 Ng1 Rg8 h8B Nf7 Bhf6 Nh8 Nd2 Qa3 Kg3 f2 Ndf3 f1B Rb1 a1Q Nd4 Bd3 Kf3 Ba2 Rb5 Qb3 Rd8 Bc2 e8N Qc1 Rh3 Bb4 Qd5 Na6 b8Q Bcb1 b7 Ba5 Qf4 Nc5 b8B Rg7 Bb7 Re7 Bc7 Ra6 Nge2 g1Q Qde4 Rd6 Qh2 Rd5 Qh1 Re5 Qf4 Re4 Qd6 Rg4 Qf4 Rg2 Rg3 Bc6+ Rd5 Nd7 Bd8 Nf8 Qd6 Qd2 Qb4 Bcd7 Rg4 Qdc1 Re4 Qd2 Ree5 Qdc1 Nc2 Qa7 Ng1 Qd2 Nd4 Qc1 Bh6+ Qg5 Nf5 Qg7 Bhg5 Qh6 Nd4
2B2b1B/QKBrr2Q/8/r5bN/1QP1kn1q/1NP1N3/R3bB2/R1q1nrr1 b - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 d3 f5 exf5 b5 axb5 c4 dxc4 Qb6 Ra5 Qc7 Ra1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 e5 Ra3 a5 Kd5 h5 b4 a4 f4 e4 g4 e3 c3 d6 b6 h3 b5 Be7 b7 e2 b6 e1B Ne2 h2 Be3 h4 Bf2 h3 Nc1 Rh7 Nd2 Nd7 Kc6 d5 b8B d4 b7 d3 Ncb3 Ra5 Qc2 Nc5 Bc7 Qd4 Rg1 h1R b8Q h2 Qb4 Bd6 Bh3 Ne7+ Kb6 Qe3 Nf1 d2 Qe4 d1R g5+ Kg7 g6 Kf6 g7 Bd2 Qa8 Ng6 g8Q Nd3+ Kc6 Qg3 Qa7 Qh4 Kb6 Rg7 Qh7 Bb7 Bg4 Bf3 Bh3 Be2 Kb7 Be3 Bg4 Be7 Bh3 B3c5 Ne3 Bcd6 Re1 Rf1 Bg4 h1R Bh3 Kf7 f6 Rhg1 f5 Ngf4 Bg4 Rd2 Rb1 Ne1 Bh3 Kf8 f7 Bg5 Rc1 Ke7 f8B+ Kf7 f6 Be7 Bc8 Rd7 Rc2 Ke6 Rc1 Rf7 Bg7 Bd6 Bh8 Ke5 Ra2 a3 Rac2 a2 Rd2 a1Q Ra2 Rg7 f7 Nd5 f8N Nf4 Ne6 Qb2 Qh5 Ke4 Rca1 Bf8 Qh6 Rh7 Ng7 Qc1 Nh5 Rhe7 Qh7+
2nq4/2B1N3/B2R2rr/1kb1r1Pq/b1RB1N2/2rQ1n1n/4r1P1/K1Q1BQ1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 f5 Kd2 a5 Kc3 c5 b4 h5 Kb2 f3 b6 f4 d6 Kc6 e5 f2 e6 f3 b7 h4 d5+ Kb6 b5 h3 e7 a4 e8Q c4 d7 h2 d6 Ra6 Nd2 Rh4 Ne4 Ne7 Ng3 Nbc6 b8B Rh6 Qf7 Ne5 N1e2 a3+ Kb1 c3 Be3+ Ka5 b6 Kb5 b7 c2+ Ka2 c1R Bc7 Rc4 b8N Rc3 Qc1 Rb6 Rg1 h1N Nc6 Rg6 Kb1 a2+ Kb2 Ba6 Bd4 Nc8 Ne7 Rh6 Rb1 a1R Qf6 Ra5 Nf4+ Rd3 Be2 f1Q Qf5 f2 Bf3 Qe1 Bb7 f1R Ra1 Nf2 Nh1 Re3 Ra4 Rc3 Rc4 Qd1 Qd3 Re1 Qf1 Nf3 Kb1 Qe8 d8B Nh3 d7 Qh5 Kb2 Ra2+ Kb1 Rac2 Ka1 Rbg6 Ba5 Ree6 Bdc7 Rce2 d8Q R6e5 Qd6 Rd3 Be1 Rc3 Qa3 Qd2 Nc6 Bc5 Ne7 Rc2 Qd3 Rc3 Bd5 Bb7 Be4 Bc6 Bd5 Bd7 Bb7 Be8 Qf5 Na7 Be3 Nc6 Bg3 Ne1 Qf2 Nf3 Rd1 Na7 Qf1 Qd8 Be1 Nc8 Rd6 Bc6 Qfc2 Be4 Bd4 Bd3 Q2d1 Bc2 Qd3 Ba4 Ba6#
5qQ1/R3q2b/b2Nq1rB/qq1BP1kr/1P1b3N/4R1nn/4R1NQ/NK1Q4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Ke7 e4 Kf6 b4 c5 d4 a5 Kd2 g5 Kc2 a4 b6 f3 b7 a3 h6 g4 h7 a2 h5 c4 h6 g3 d6 g2 d7 c3 d5 f2 d6 Ra6 Rh4 Bg7 Ne2 g1Q Ba3 Qf8 d8R Bf5 d7 Ne7 Rc8 Nbc6 b8Q Nd8 Nd2 Qg5 Rh2 Ne6 d8Q Nf4 Nb3 Nh3 Bg2 f1Q Nf4 Qb5 Bb2 Qh4 Rc7 Kg5 Ra7 Rg6 Q8d5 f6 Qg8 Qg4 Rc1 a1Q Qe5 Qaa6 Kb1 Qaa5 Na1 Qge2 Bf3 Qec4 Rcc2 Qe6 Rce2 c2+ Kc1 Nc6 Re3 Nd4 Ng2 Qee7 Bc3 Ne2+ Kb2 Ng3 Bd4 Qab6 Ka2 c1Q Qb8 Qcc8 Kb1 Qa4 Qg1 Qaa5 Rh1 Nh5 Qbh2 Qbb5 Qf1 Ng3 Qd1 Qce6 Rhe1 Qff7 R1e2 Qff8 Ne1 Kf4 Bg2 Rg5 Bf3 Rh5 Bc3 Bg6 Bd4 Kg5 Ng2 f5 Bc3 f4 Be5 Qfc8 Bb2 Bd4 Bc3 Bc5 Bg7 Bf7 e5 Bd4 Be4 f3 Bb7 f2 Bd5 Q6d7 Qd8 Rf8 h8N Bg8 h7 Rf6 Ng6 Qde6 N6h4 Rg6 h8N Bh7 Qg8 Qcf8 Nf7+ Kg4 Nd6 Kg5 Qh8 f1B Rf2 Qc6 Qg8 Ba6 Rfe2 Qcb5 Bh6+
RRrn4/2n3rn/N3B3/k2Pqnb1/1q2b1Rn/5N1Q/K2P4/BQB1Nr1R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 h5 f4 a5 g5 c5 b6 e5 f6 a4 f5 c4 b5 a3 b7 Kc7 f7 Kb6 g6 h3 g7 e4 f6 c3 Qe2 e3 Kd1 h4 Kc2 h2 Kb3 h3 Qh5 a2 Ba3 c2 Qf5 c1N+ Kb2 e2 Qe5 e1N Qe6+ Nc6 b8N Be7 f8R Rh7 f7 Ne2 Nf3 Nf4 Rg1 h1N Qh6 h2 Qe6 Nf6 g8Q Neg2 Na6 Qd6 Qg6 Nh4 Bh3 Ka5 b6 Rg7 b7 Ng3 b8B Qc5 Be5 h1R Re8 Bd7 f8R Nh7 Rc8 Bg5 Bf6 Ra7 Ra8 Rc7 Rfb8 Nd8 Kb3 Qd4 Bb2 Rc4 Na3 Rc8 Nc2 Qe4 Rad1 a1Q Bc1 Qaa4+ Kb2 Qab4+ Ka2 Qf5 Bc3 Qe5 Ba1 Be8 Qe4 Bg6 Rdf1 Bf5 Nce1 Bg6 Qg4 Nfe6 Qb1 Nc7 Qe6 Be4 Qh6 Ng6 Be6 Nf5 Qh3 Ngh4 Rg4 Rg1 Rf2 Rh1 Rh2 Rf1 Rh1
2BQ2n1/2q3R1/rB1Q3B/1P2nqB1/1bnrrRP1/1b3NK1/3n3Q/2k1NNn1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 Kf2 h5 g4 c5 d4 e5 f6 a5 f5 c4 b6 h3 b7 h2 b5 e4 f7 c3 f6 h4 Nd2 c2 Nb1 a4 Na3 h3 Be2 e3+ Kf3 Be6 Bc4 e2 Bb3 e1R Qe2 Nc6 b8N Ne5+ Kg3 Qc7 Nd7 Nc4 Nb1 a3 Ne5 a2 Nd2 Ra6 Nd3 Be7 Rb1 a1N f8B Rh6 Ba2 Nb3 Nf1 Nbd2 f7 Rg6 Qf2 Re4 Bh6 Rf6 f8B Rff4 Nf3 Bf7 Rb4 Be6 Rg1 h1Q Nde1 h2 Bg5 Bf7 Bfh6 Be6 Bb2 c1N Rg2 Nd3 Qe2 Bf7 Rf2 Nde5 Bb3 Kd7 d6 Ke6 d7 Kd5 Ra4 Bb4 d8Q+ Rd6 Qf8 Be6 Ra8 Ra6 Re8 Bf7 Re7 Be6 Rg7 Qg1+ Kh3 h1N Qe7 Ng3 Ba2 Re3 Qd6+ Ke4 d5 Bf7 Bd4 Be6 Qd1 Ne2 Bb6 Rd3 Qb3 Rd4 Qb2 Qg2+ Kh4 Ng1 Bb3 Qh1+ Kg3 Bf7 Qe6 Qh5 d6 Qg6 d7 Qf5 Qd6 Bd5 d8Q Bf7 Ng2 Kd3 Qa2 Re4 Nge1+ Kc3 Bc2 Nb2 Bb1 Bb3 Bc2 Nbc4 Bb1 Re3 Be4 Re2 Bb7 Re3 Bc8 Ree4 Qa5 Kb2 Qa2+ Kc1 Nh4 Bc5 Rf4 Bb4 Nhf3 Nb1 Qe2 Nbd2 Qh2
2nQQqN1/2kRq3/3b1n2/P1B4R/K1B5/4R3/1NPNr1B1/nbrnnR1b b - - 0 1 illegal: No possible last move
bb3N1N/1b2N3/r1nQb1P1/2B1R1qR/3P2B1/2r3k1/r1NB3Q/1Knbq2R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 c5 Kc2 h5 b4 f5 e4 a5 g4 a4 b6 h4 b7 h3 b5 c4 e5 a3 g6 a2 d6 Ke6 d7 f3 g5 c3 b6 f4 g7 Kf5 g6 Kg4 e6 h2 e7 Na6 e8R Qg5 b8Q Ne7 d8B Bb7 g8N Nb4+ Kb3 c2 Kb2 Ra6 Be2 Kg3 Na3 f2 Qf1 Nec6 Nh3 Bd6 Re5 f3 Bd2 c1R Ne7 Rc3 Nc2 Rh7 Qd1 f1B Qe1+ f2 Bg4 Bd3 Qe2 f1B Kc1 Ba8 b7 Bf5 Bb6 Be6 Bc5 Rh4 Qd8 Bb8 Qd6 Bg2 Rb1 Bf3 Rb3 a1Q+ Rb1 Bc7 b8N Rh6 Nd7 Bb8 Nf8 Nd3+ Kd1 Nc1 Rb5 Rh7 Ra5 Rf7 Rb5 Ra2 Ra5 Rf6 Rb5 Qf4 Ng5 Qe3 Nf7 Qg5 Re1 h1B Nh8 Nb4 Ra5 Bfb7 Rb5 Bhf3 Rh1 Nc6 Bb4 Qf4 Reh5 Qb1 Rbe5 Qg5 Bc5 Bg8 Qe6 Nd3+ Bc1 Nd8 Qd7 Rfa6 Qd6 Qb6 Bd2 Be6 Re1 Nc6 Reh1 Ndb4 Kc1 Qb5 Qd1 Qe2 Nd7 Qe1 Kb1 Nd3 Nf8 Be2 Ne3 Nc1 Nc2 Qg1 Qf1 Bd1 Qe2 Qe1 Qh2+
1n1b1k2/1b1n1R1b/BQ3Pr1/1qrn1QR1/1Q2B2q/1P3B1N/b3b1KR/2B4N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 h5 c4 e5 f4 d5 Kf2 a5 f6 h4 b6 h3 g6 d3 g5 d2 c5 a4 g7 h2 c6 d4 b7 e4 f5 e3+ Kg2 a3 c7 d3 g6 a2 Nh3 e2 Kg3 e1Q+ Kg2 Be7 Qf3 d1B Nc3 d2 Be2 Bc2 Nd1 Ra6 Ndf2 Be6 c8B d1B Qb3 Qd3 Qb4 Qc4 Bf3 Bd8 Rf1 Bb1 Nh1 Ne7 g8B Qeh4 g7 Rh5 Bh7 Qb5 g8R+ Kf7 Rg4 Be2 Rg5 Kf8 f7 Bbd3 Rb1 a1N Rf2 Ba2 b3 Rg6 Rf1 Nd7 b8Q Nc2 Ba6 Nd4 Rb2 Nc6 Qb6 Ncb8 Rd2 Kg7 Bg8 Nd5 f8Q+ Kh8 Qfc5 Kg7 Bh7 Be4 Rf2 Bc2 f6+ Kf7 Rd3 Ke8 Re3+ Kf7 Re7+ Kf8 Qf4 Bcb1 Qf5 Bc2 Qb4 Bcd3 Ng3 h1B+ Kg1 Ne5 Qff4 Ne3 Bc6 Rg8 Rg4 Bf1 Rh2 Bfe2 Bcb7 Bhf3 Nh1 Ned7 Bd5 Rf5 Rg5 Re5 Bdb7 Rc5 Bf5 Bde4 Bg4 Bg6 Qf5 Bh7 Bc6 Bd5 Bf3 Rg6 Bcb7 Bdg8 Bbe4 Bd5 Rg7 Bb7 Re7 Nd5 Kg2 Nc7 Rg7 Nd5 Rf7+
r2QN3/k3b3/qP2BNQ1/Rrr1Rb1q/1B1P1Kn1/1q2BRr1/7N/3n2Br b - - 0 1 illegal: No possible last move
4b1b1/k3bP1b/NqB2RNr/q2NR3/2n4B/2n1PBrq/1N4Q1/3QKbR1 b - - 0 1 illegal: No proof kernel
1K1n1B1r/Q2b1Pr1/1QQRq2P/nN1nb2R/R1N5/5r1k/B1qQr2B/1r6 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 Kh4 d4 a5 f4 g5 b4 c5 f6 c4 f7 a4 f5 c3 b6 c2 d6 a3 f6 g3 d7 e6 b5 g2 d5 a2 b7 g4 b6 g3 d6 Bh6 f8B Bg5 f7 Ra6 Nc3 Qe7 d8R Nf6 d7 Ra3 Nb5 Rf3 Qd2 Nd5 Bc4 Bh6 Ba3 c1Q Bd6 Qc2 Qc3 Kg4 h4 Bd2 h5 Bf4+ Kd4 e5+ Kc5 e4 h6 e3 Rh5 Nc6 b8Q e2 b7 e1R Qa7 Qf6 b8Q Re2 Qbb6 Qe6 Qd2 Be5 Bc7 Rb3 Nf3 g1R Qc1 g2 Nd2 Rf3 Bb8 Bb2 Bh2 Bc3 Bb3 Be5+ Nc4 Rd1 Qd2 g1R Qbc7 Rb1 Qd6 Nf4 Kb6 Rgg2 Kc7 Rgg3 Re8 Nd8 Kb8 Nd5 Qdc7 Rbe1 Rd1 a1N Ba2 Nb3 Ra1 Rb1 Re7 Qf6 Re6 Na5 Rd6 Qe6 Qc6 Rgg2 Bb3 Rgg3 Ra4 Rgg2 Ba2 Rgg3 Rg5+ Kh3 Rf5 Rg7 Rg5 Ndb7 d8Q Bd7 Qdb6 Nd8 Rh5+
1Q2N1q1/B1PRb2q/rQRBn2n/2b2b1Q/1R5r/bb1rP1kB/N3K3/4R3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 Ke7 h4 Ke6 c4 Kf5 e3 g5 c5 d5 c6 a5 c7 g4 b6 g3 h6 a4 b7 d3 e6 a3 h7 g2 b5 d2+ Ke2 Kg4 b6 f5 h5 a2 h6 f4 e7 d4 e8R Bc5 Ba3 Nc6 b8B Bf5 b7 Ra6 Nf3 g1B Bh3+ Kg3 Re6 Bf2 Qb3 d1R Ng5 Rd3 Re1 Qf8 Qb4 Nd8 Rc6 Ne6 Ba7 Qa8 Qb6 f3+ Kf1 Qc8 Nc3 Qd8 Rac1 a1B b8Q Bb2 Rcd1 Qd5 Bb4 Ba3 Na2 Qd8 Nf7 Qe7 Re2 Be1 Nd6 f2 Ne8 Qd8 Ba5 Beb4 Ree1 Be7 Ke2 Bbc5 Rd2 Qc8 Bb4 f1Q+ Kd1 Qh1 Ke2 Nf6 Rdd1 Ng4 Rd2 Rf8 h8R Rg8 h7 Nh6 Rf1 Rg4 Rf8 Rh4 h8Q Qd8 Ng7 Qe8 Re1 Qg6 Ne8 Qd5 Ng7 Qh7 Rf6 Qd8 Qe8 Qc8 Qh5 Qcg8 Ne8 Rb3 Rdd1 d3+ Kf1 d2 Ke2 Rd3 Rf7 Be4 Rf2 Bf5 Rf4 Bd4 Bd6 Bdc5 Rb1 Bf8 Rbb4 Be7 Rbd4 d1B+ Kf1 Nf8 Be5 Bg6 Rd7 Bf5 Bd6 Bb3 Ke2 Ne6 Rb4+
N1qrN1RQ/2P1Pr2/b3Q1nK/bn3B2/3b2N1/1qB1Nrk1/5R2/B1b2Rb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 e4 f5 c4 a5 b4 a4 h4 g6 c6 a3 c5 a2 c7 d4 h5 d3 b6 d2 b5 g3 c6 g2 h6 Ra4 h7 Bd7 c8N Ba3 b7 Qf6 b6 Qd8 c7 Ne7 Kg5 f4 Nf3 g1B Bd3 Bb5 Nh2 f3 Bb2 f2 Ng4 f1R Qe1 d1Q Rh2 Bd4 Kh6 g5 Bc3 Bc1 Nd2 Nbc6 b8R Na7 b7 Ra3 Nb6 Ng6 Rf2 Qb3 Na8 Ba6 Nc4 Nb5 Nce3 Qc8 Rb1 Rg8 h8B a1B Qe2 Rd8 Qa2 Ke7 e6 Kd6 e7 Bb6 Bc2 Ba5 e8N+ Ke6 e5 Bab2 Ngf6 g4 Bg7 g3 Ng4 g2 Bf5+ Ke7 e6 g1B Be1 Be5 Bc3 Bd4 Ba1 Bdb6 Bgc3 Bd4 Ng7 Kd6 e7 Qd7 Rc8 Qe8 b8Q Qd7 Nh2 Ke5 Ne8 Qde6 Rg2 Kf4 Rf2+ Kg3 Ng4 Qb2 Qb3 Qd7 Qg8 Qb3 Qb6 Qde6 Qh8 Qd7 Rb8 Qc8 Qe6 Bd2 Re1 Bc1 Ra2 Rf3 Rf2 Ra4 Ref1 Rc4 Qeg8 Rc6 Qd5 Rf6 Qe6 Rf7 Qc4 Rd7 Nef6 Qb7 Rg8 Qc8 Ne8 Rd8 Qe6
rrQ2R2/BP2n2r/1Nq2bNn/2Nbr2Q/2RR4/PKQ2qk1/4q1Q1/3B1r2 b - - 0 1 illegal: No proof kernel
Q4BQQ/3R2rN/n3Kb2/3NPrrr/r1B1R2N/1bBr1nQ1/4kqP1/3r4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 d4 a5 b4 c5 d6 h5 d7 f5 d5 h4 d6 h3 g6 a4 g7 a3 b6 h2 b7 f3 b5 f4 b6 a2 Ba3 f2 Bc1 f3 Ke6 Qh4 Bh6 Ra4 Qe1 Be7 Ke5 Nf6 d8B Rg8 d7 Nh7 Bc7 Bf6+ Ke6 Na6 b8Q Qf4 Be5 Ng5+ Kd6 Qg3 d8Q Be6 b7 Ra3 e4+ Rd3+ Kc6 Bd5+ Kd6 Qh4 Be2 f1R Qg3 f2 Nf3 Rd1 Re1 f1R Nc3 h1R Qa8 Qf4 b8Q Rh5 Nh4 Qf2 Rb1 a1R Rb7 Nf3 Rd7 Ra4 Qe8 Be6+ Nd5 Rg5 Bc3 Rh1 Nf5 Rhh5 e5 Rf8 g8N Rf7 Bf1 Rfg7 Nh4 Bf7 Bb4 Kd4 Qf8 c4 Ba5 c3 Qb3 Be8 Ke6 c2 Qbb8 c1R Bc3+ Kc4 Qf7 Rca1 Qg6 Rab1 Qh7 Rb7 Qh8 Rf5 Qd8 Rgg5 Bf8 Ra7 Rh7 Rag7 Re4+ Kb3 Qdb8+ Kc2 Qc8 Bb5 Qe8 Bc4 Be2 R7g6 Rd7 Bb3 Qec8 Rg7 Qc4 Bd8 Ngf6 Kc1 Nh7 Bf6 Ba1+ Kd2 Qcc8 Re3 Bc4 Rd3 Qe8 Qe3 Bc3+ Ke2 Rd4 Qf4 Qf7 Qe3 Qfg8 Qf2 Re4+
4b1R1/3kbPN1/KQbb2B1/n1N2RR1/2r2bBP/B1Qb1n2/2R1q1b1/2rN4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 b5 Kd3 d5 h4 e5 c4 g5 f4 d4 a4 b3 c6 b2 c7 g4 h6 g3 f6 b4 h7 g2 a5 b3 c5 e4+ Kc4 e3 Kb5 e2 f5 e1B a6 d3 a7 d2 f7+ Ke7 c6 Bb7 c8R Bg3 c7 Nd7 Bd3 Bf4 Ra5 Qe8 Nf3 g1B Nd4 Bg2 Ne6 Bgh2 Nc3 b1B Rf1 b2 Ka6 Ne5 f6+ Kd7 Ng7 Nf3 Qb3 d1B Rg5 Ne7 Qb6 Ba4 Bg6 Nc6 Nd1 Be7 f8R Ba2 f7 b1B Rg8 Bd5 Ba3 Na5 Rf2 Rb8 a8N Bdc6 Rc2 Bfd6 Rcc5 Bhf4 Rcf5 Bf6 Qf2 Rb4 Nb6+ Ke7 Qd4 Rc4 Nd7 Bbc2 Nc5 Bd3 Nb3 Kd7 Qb6 Qe2 Nc5+ Ke7 Ra8 Be8 c8B Bac6 Be6 Bed7 Rgc8 Rd8 h8Q Be8 Rd5 Rd7 Bg4 Rc7 Rdf5 Bed7 Rg8 Be8 Ra7 Kd8 Qb1 Rc8 Rc7 Bfe7 Qb3 Rb8 Qc3 Rb1 Qh6 Rc1 Rb7 Qf2 Rb2 Qe2 Rc2 Bce4 Qe1 Bc7 Bh7 Bb8 Qc6 Bbd6 Qb6+ Kc8 Bg6 Bc6 Qb5 Kd8 Qc3 Kc7 Qb6+ Kc8 Nb7 Kd7 Nc5+
1NQbQ3/1RB5/r4r1q/R1B2B2/5rr1/b1N5/2qkPnNP/KR1bR1nq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 d4 Kf6 Kd2 Kf5 Kc3 Ke4 Kb2 c5 h6 g5 d6 a5 b6 f5 h7 c4 b7 a4 b5 g4 d5 c3+ Ka2 c2 d7 f3 d6 f2 b6 f4 Bh3 f1R Bb2 Ke3 Be5 c1Q Bb2 g3 Ba3 f3 Bb2 a3 Be6 g2 Bf7 f2 Be6 Nh6 Qe1 Ng4 Bb3 Ra6 Be6 Qc2 Nf3 g1Q Nc3 Qf6 d8B Nd7 b8N Nde5 d7 Rg8 h8R Qh6 Nh4 Nf3 b7 Bd6 Qb1 Kd2 Bc7 Be7 d8R+ Bd7 Rh7 Bg5 Rf8 Ba4 Rf5 Bd8 Ra5 Qg2 Rg1 Qh1 Bf5 Rgg6 Ng2 Rgf6 Re7 Rc1 Bg3 f1R Bc7 Rf2 Re1 Ng1 Rg7 Rf4 Rh7 Nf2 Re7 Qd1 Qe4 Qc2 Rb1 Bb3+ Ka1 a2 Qc6 Qe4 Re6 Rg6 Qe8 Rf6 Nd7 Rf3 b8Q Bd1 Na4 Rc4 Ba3 Qc2 Bc5 Rg4 Reb6 Rff4 Rb7 Qd3 Kb2 a1B+ Ka2 Bd4 Qc8 Bb2 Nb8 Qc2 Nc3 Ba3+ Ka1
qR1bN3/r2n3q/1nRK2R1/2N2NB1/1Q1brQ2/b7/PP1Brk1n/5BNb b - - 0 1 illegal: No proof kernel
1R1Q1Rb1/q1bN1q2/2Q5/R2BqBn1/Nr6/1kQrBP1P/R2b4/K1nb2r1 b - - 0 1 illegal: No possible last move
q1k1r3/b1rbbN2/b1Rn2K1/4q2B/RRQRB3/B1P5/2PNN1n1/1Q1n2q1 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 f5 exf5 gxh4 Ra4 c4 Ra1 c3 dxc3 Bb7 Qd4 Ba6 Qd1 Bc8 Kd2 a5 Kd3 h5 Ke4 d5+ Ke5 Kd7 b4 a4 f4 a3 g4 a2 g5 h3 b6 d4 b5 h4 b7 h2 f6 h3 Kf5 e5 b6 d3 g6 e4 g7 e3 f7 e2 Bg2 e1B Ba3 d2 Qh5 d1N Nd2 Qc7 Ne2 Be7 f8R Na6 b8R Qe5+ Kg6 Ra7 f5 Nc5 b7 Ne4 f6 Nh6 g8B Nd6 f7 Ng4 Be4 Nge3 Qh4 Ng2 Rd8+ Kc7 f8Q Bd7 Qf1 Bf2 Bf7 Re8 Rg1 h1B Qg4 Nde3 Qb1 h2 Rf1 Bg1 Rf6 Nd1 Qh4 Nf5 Rb6 Nd6 Rb4 Be3 Ra8 Bb6 b8N Rb7 Raa4 Bg1 Qb2 Ba7 Rb1 a1Q Nc6 Qa2 Ra1 Qad5 Qb1 Qdd4 Qf4 Qg1 Ra2 Rb5 Rab2 Rc5 Rd4 Rc4 Rbb4 Rc5 Rdb8 Rc4 R8b6 Kc8 Nd8 Rc7 Qg4 Nge3 Bf5 Bb7 Rc6 h1Q Be4 Ng2 Qe6 Ba6 Qc4 Qf4 Bfd5 Qe5 Nf7 Qhh2 Be6 Qd5 B6f5 Qhe5 Bg4 Qa5 Bh5 Qad5 Rcb6 Qa8 Rc6
2r1k3/nnRBb2B/4q2N/1q4r1/1qB1r2r/1P1Q3R/RP2b1NB/3QNbK1 b - - 0 1 illegal: No possible last move, all moves rejected
k1qbb1BB/1Br3b1/2B5/KR6/3Rq3/PQ2qR2/1n1Pr1Q1/nNqQn1N1 b - - 0 1 illegal: No possible last move, all moves rejected
r3b1r1/2NqB3/3BQ2k/N1n1r3/1RK3Bb/Pn2qP2/NbB1Q1Q1/2r2nR1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 Kg7 g4 b5 g6 h5 f6+ Kh6 f7 e5 a3 c5 d6 h4 d7 h3 g7 b3 f3 h2 Bh3 b4 Qe2 e4+ Kc4 b2 d4+ e3 d5 b3 d6 Ne7 g8B Bg7 f8Q Nec6 Qf7 Nd4 Nd2 b1Q Bh7 b2 Nb3 Na6 Bc2 Rg8 Na5 Nb3 Qe6+ Bf6 Bd2 Qc1 Bb4 b1N Ra2 Qe7 d8N Bd7 Rb2 Be8 d7 Qd2 Kb5 c4 Bd6 c3 Kc4 Nac5 g5+ Kg7 g6 Bh4 Bg4 Kh6 Qe4 Qe1 g7 Qc1 Qg2 e2 Ne6 e1R d8B Qd7 Nc7 Qe3 B8e7 Rc1 Ne2 N1d2+ Kb4 Nf1 Rg1 h1R Kc4 Re1 Nc1 Re2 Na2 Re1 Bd1 c2 Qe5 c1B Bc2 Re2 Rb1 Bb2 Qeh2 Rh8 g8Q Re1 Qd5 Rg8 Qe2 Rc1 Qhg2 Rh3 Qc6 Rg3 Qd5 Rg5 Qg8 Re5 Qe6+ Kg7 Bd8 Nd4 Qf7+ Kh6 Bh3 Bc3 B8e7 Rg8 Rb4 Bb2 Bg4 Ndb3 Qe6+
1R6/q1n3NQ/b4NQ1/2k3n1/R1rB1rqb/PBP2rQ1/nN1b4/bKB2Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 a3 b5 Kd2 g5 h4 d5 f4 Kd7 f6 Kc6 h6 e5 f5 b3 h5 b4 h7 e4 h6 b2 f7 e3+ Kd3 g4 f6 d4 Qe1 b3 Rh2 g3 Nd2 b1N Ne4 g2 Ne2 g1B N2c3 e2 Rh4 b2 Na4 Be7 f8Q Qc7 f7 Nc3 Rb1 Na6 Qf2 Kd5 c6 e1B Qh2 Qb8 c7 Na2 Rg4 Bb7 c8Q Nf6 Qce8 Nc7 Qh4 Rg8 h8B Nh7 Qg3 Bh4 Be5 Ng5 h7 Bc3 h8Q Be3 Qh7 Ra6 Qh5 Qa7 Qh7 Rc6 Be2 Rgg6 Bd1 Rgd6 Rf4 Rc5 Qe6+ Kc6 Qeg6 Rf6 Qd8 Kb5 f8N Ba6 Ne6 Rf8 Qdf6 Rf7 Ng7 Rc6 Ke2 d3+ Kf1 d2 Ke2 Rc5 Kd3 Rf8 Rg4 Bed4 Qf1 Bb4 Ra1 b1R Rf4 Rf5 Nf6 Bdc3 Rd4 Rb3 Rb1 Ba5 Re4 Rb4 Rb3 Ba1 Nb2 Kc6+ Rc4 Ra4 Rb8 Rb4 Re8 Rf4 Rb8 Rb3+ Ke2 Rd3 Rcb4 Rcc4 Ra4 Bb6 c3 Be3 Bb3 Kc5 Kd1 Qb7 Kc2 d1Q+ Kb1 Bd2 Re8 Qg4 Rg8 Qa7 Rb8 Rdf3 Bd4+
nNb1N2n/B1B1K3/R5q1/6n1/1B1N1PP1/2QQbr1r/4Qqb1/R1rr1B1k b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 b4 c5 d4 e5 g4 a5 f4 c4 f6 h3 b6 h4 b7 h2 f7 c3 b5 h3 b6 a4 Qe1 c2 Qd2 a3 Qe2 a2 Nd2 Nh6 Qe1 Qf6 Bd3 Nd7 b8N Ra3 b7 Nb6 Bc4 Na8 Bf1 Rf3 Ne2 Qg7 Bb2 c1R Bc3 Rd1 Rg1 h1N Qg3 Be7 f8Q h2 Qe8 Nf7 Qe1 Rhh3 Bb4+ Kc7 Nc4 Nh8 Qc3 Bc5 Qe6 Nf2+ Kf5 h1B Nd6 e4 Rg2 Qg8 Kf6 e3 Ke7 Ne4 Qe5 Qg6 Rh2 Rhg3 Rh6 Ng5 Qe6 Kb6 Qe4 Rh3 Qe6 Ka7 Qe5 Bb6 Ne8 Bg2 d6 Bc5 d5 Kb6 Nd4 e2 Qee3 e1Q Qe2 Qf2 Rc1 Ka7 Ra1 Bb6 d7 Rc1 Nb3 Be3 d6 Kb6 Nd4 Rd1 Na6 Rc1 b8B Rd1 d8B+ Kb7 Rb1 a1R d7 Rc1 Bdc7 Rd1 Rb3 Rab1 Ra3 Rbc1 Bcd6 Kb6 Ra1 Kb7 Nf5 Kb6 d8Q+ Kb7 Bdc5 Kc6 Bbd6 Kd5 Nd4 Ke4 Ba7 Nc7 Qd7 Na8 Bc7 Qb6 Ba3 Rfg3 Nb3 Bh1 Qeb5 Kf3 Nb8 Qc6 Re6 Qe4 Bb4 Qg6 Be2+ Kg2 Bf1+ Kh2 Qe2 Rf3 Qdd3 Bg2 Nd4 Kh1 Rea6
1r2NQR1/Q5N1/1NBr1nR1/5rN1/bKQP3n/n1nqB3/1bP1b1Bk/6q1 b - - 0 1 illegal: No proof kernel
1Q1qq2N/3n1R2/rQ2r3/R2b4/BPBbn2B/1R1b2q1/4QP2/1nbkN1RK b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kf7 b4 Kf6 d4 h5 d6 c5 d7 a5 d5 Ke5 f6 Ke4 f7 e5 b6 h3 b7 h2 d6 h4 g5 h3 g6 c4 g7 a4 Be2 c3 Kf1 c2 Bb2 c1B Bh5 a3 Bg4 a2 Nf3 Ra6 Qe1+ Kd3 Be6 Kc2 Ng5 e4 Rg1 h1B Nd2 e3 Ndf3 h2 Bc4 Nf6 g8B Ne4 Bf6 Bg7 f8R Rh6 Nf7 Rg6 Bh4 Re6 Bb5 Bd4 Nh8 Nc3 Rb1 a1Q Rb3 Nb1 Ba4 Qc3 Rf7 Qcc7 Ng5 Bc6 Nf3 h1N Kg2 e2 Qf1 Bb5 Ne1+ Kd1 Kh2 Bd3 Kg2 Nc6 b8Q Ng3 Qb6 Ne4 Kh1 Ne5 Qb8 Qf6 d8R Bb7 d7 Bd5 Rc8 Qd6 d8Q Nd7 Rc5 Qg3 Qdb6 Qd8 Ra5 Bc2 Nf3+ e1Q Qfb5 Bd3 Qc4 Qf1 Ne1 Qe8 Qc3 Qe2 Qb2 Qd2 Qa2 Qdg5 Qb2 Qgd8 Qa2 Ba3 Qe2+ Kc1 Q6c7+ B5c4 Re7 Re5 Qf1 Kd1 Qcb6 Bc1 Bd5 Re6 Rf7 Bb5 Bc4 Bc6 Rg2 Ba8 Rg1 Bd5 Qe2+
q2n4/Bbq1Q2q/1N2bKR1/r3N2P/3N1bBn/4Rrk1/PQ1q2Nr/6QB b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 b5 Kg4 g5 Kf5 c5 h4 g4 d4 b3 e4 f6 h6 b2 d6 b4 e6+ Kc6 d7 Kd6 h7 g3 d5 g2 e7 b3 e8Q c4 Ne2 g1Q Nbc3 b1Q Bh3 b2 Be3 Qc7 Nd4 Nc6 Na4 c3 Nb6 c2 Bg4 c1Q Rh3 Qg2 Qg1 Bb7 d8N Ra5 N8e6 Bh6 Nf4 Qcd2 Rf3 Qh1 Ng2 Nd8 Bf2 Bg5 Re3 Nh6+ Kg6 f5 e5+ Kc5 e6 Kd6 e7 f4+ Kg7 f3 Qf7 Bf4 e8B Qe4 Bc6 Ke5 d6 b1B d7 Nf5+ Kg6 Bd3 Rf1 Bc4 Qe7+ Be6 h5 Nh4+ Kg7 Re8 h8Q Rf8 Bd5 Re8 Rc1 Rf8 Rc6 Re8 Bg3 f2 Rd6 f1R Bf2 Nf7 d8N Rf8 Bg3 Rf3 Bf2 Rh3 Rc6 Rh2 Qd7 Bf5 Rg6 Be6 Qe7 Bc6 Nb7 Nd8 Nc5 Bb7 Ne1 Bg5 Ncd7+ Kf4 Ne5 Rf6 Qe8 Qed3 Qb5 Qhe4 Qb2 Qa6 Qh1 Qa8 Bg1 Qed3 Bdf3 Kg3 Ng2 Rf8 Be4+ Rf3 Bc6 Bf4 Kf6 Bc4 Ne6 Bd5 Rg8 Qc4 Re1 Qcc8 Na4 Bh6+ Ngf4 Qe4 Ba7 Rf1 Nb6 Qcb8 Nd4 Qh7 Rg6 Be6 Be4 Qc7 Re3+ Kf2 Bef3 Kg3 Bg2+ Rf3 Qf1 Bd7 Bh1 Bf5 Ng2 Bf4 Qfc1 Be6 Qg1
1N3Qq1/b4qB1/1r1QqR1r/2b1n1PQ/nrk5/K1NR3r/b5P1/1NR1RB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 d4 Kd6 Kd2 c5 Kc2 h5 Kb3 f5 b6 a5 b7 c4+ Ka2 f3 b4 f2 b5 c3 b6 f4 Ba6 f1Q Bd2 c2 Be3 c1Q Bf2 f3 Qd3 a4 Qc4 h4 Be1 f2 Rh2 h3 Qd3 a3 Qf3 Nh6 Qh5 Qc6 Ne2 Nd7 b8N Nf7 b7 Nb6 Nec3 Na4 Bc4 Rh6 e5+ Ke7 e6 Kd6 e7 Be6 e8Q Ra6 Rh1 h2 Be2 Be7 Qf8 Ne5 Kb3 a2 Ka3 Rb6 Bb5 Qg1 Bf1 Qce8 Bd2 Qf7 Bc1 Rb4 Bb2 Rb6 Bd3 Qd1 Re1 h1R Bf1 Qg4 Rc1 Rh3 Re1 Rb4 Rc1 Kc7 d6+ Kb6 d5 Kc5 d7 Kd4 Re1 Bc5 d6 Bd5 Rc1 Qge6 Re1 Qde8 d8R Qg8 d7 Qe8f7 Re8 Ba7 d8R Rb6 Be2 f1R Bc4 Rf5 Bf1 Rf4 Rd6 Kc5 Red8 Rfb4 Rc1 Bb3 Rd3+ Kc4 R8d6 Qee8 Rf6 Qee6 Re1 Qgh7 Nb5 Qef5 Nd7 Bb8 Re6 Nf3 Bg7 Ne5 Rf6 Qhg8 N5c3 Ba7 b8Q Q5e6 Qbd6 R4b5 Ne4 Rb4 Nb8 Kb5 Nbc3+ Kc4 Rac1 a1B Nb1+ Bc3 Rcd1 Bd4 Nec3 Ba2 Rc1 Be3 Qe2 Bc5 Qh5
1B2QbqN/1r1qB1n1/5RQN/3P2K1/kQN2r1N/r2Bb3/P3R1bn/6rq b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 c5 Kf4 e5+ Kg4 b5 d4 g5 f4 e4 h4 c4 h6 e3 h7 e2 d6 Kc6 h5 e1Q h6 b3 d7 b2 f6 c3 f7 b4 f5 b3 f6 c2 Qe2 Ne7 Qe3 Qd1+ Nf3 Bb7 Rh2 Ra3 Qg1 Nf5 Re2 Kb5 Nh4 Ng7 Bf4 c1B Nd2 b1Q Nc4 Nc6 Bb8 b2 Qg2 Rg8 h8Q Ka4 h7 Be3 Qg1 Qe8 d8N Qg6 Qg2 b1R Qe4 Qh6 Qg6 Rbb3 Rc1 Ba8 Rb1 Rb7 Rb5 Qb3 Rf5 Qe7 Rff2 Qd7+ Rf5 Ne6 Rff2 Ne5+ Kf5 g4 Rf3 Bb4 f8B g3 f7 g2 Be7 g1R f8Q Ng4 Nf7 Nh2 Qe5 Bd6 h8N Ng7+ Kf6 Qh5 Nh6 Rg4 Rf5 Rf4 Qe4 Qf3 Kg5 Qh1 Rf6 Bb4 Qfe8 Bc5 Bd8 Bf8 Be7 Rb6 Qe5 Bg2 Qd6 Rb7 d5 Qb6 Qh7 Qd8 Qhg6 Rc7 Rb2 Bf3 Qf5 Rb7 Qf7 Q8c8 Kg6 Qcc6 Qc5 Qce6 Bd3 Be4 Re2 Ne8+ Kh5 Rg1 Q5g6 Bg2 Kg5 Ng7 Qe8 Qg8 Qb4+
3Q1q2/Nnr5/1r1N3Q/qq1P4/kr4bR/5PRB/1nRK3B/b2nNrQR b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 a5 d4 c5 f6 h5 g5 e5 b6 h3 g6 c4 b5 a4 g7 h4 f7 e4 b7 c3 d6 c2 b6 Kc6 f3 h2 d7 e3 Na3 e2 Kd2 e1N Rb1 h3 Kc3 Na6 b8R Rh6 b7 Nd3 Bg5 c1R+ Kd2 Nf6 g8R Bg7 f8Q Nd5 Nc2 a3 Bf6 a2 Qf7 a1Q Rh8 Nac5 Qh5 Nb2 Ne2 Kb5 Ng3+ Ka4 Ne4 Nc3 d5 Qf8 d8Q Bg4 Be5 Rb6 Rc8 Rb8 Nd6 Bf6 Rg1 h1Q Rg3 h2 Bh3 Qf1 Qh6 Qb5 Qg1 h1R Ne1 Ncd1 Rc6 Rc4 Rc1 Rc8 b8N Nb7 Rh7 Rf4 R6c2 Rc7 Nc6 Rb4 Na7 Bg7 Qg6 Qa3 Rh4 Qa2 Qh6 Bh8 Qc5 Rf1 Qg1 Qa3 Rb1 Qc3+ Kc1 Qcc5 Kd2 Qa5 Rbc1 Qcb5 Qge3 Rh1 Nd3 Nc3 Bd4 Rg1 Rf1 Ncd1 Ne1 Nd3 Qf2 Rh1 Qg2 Bg7 Bg1 Ba1 Bh2 N3b2 Qe2 Rg1 Qf2 Rg2 Rh1 Rg1 Qc5 Rf1 Qg1
3qB1BQ/6bR/N3N1qr/1Pb2B1N/1r1P1BR1/Q2rqr2/5Q2/kn1n1b1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 Kd6 Kg2 Ke5 b4 Kd4 e4 h5 b6 f5 g6 c5 d3 a5 b5 a4 g5 c4 g7 h4 d6 f3+ Kh2 f2 d7 a3 g6 c3 b7 f4 e5 c2 e6 a2 e7 f3 e8B h3 Bh6 c1Q Qe1 Bc5 Bf4 Rh4 Na3 Qe3 Qe2 Kc3 Bg5 Na6 b8N Nc7 Bf4 Nf6 g8Q Ne4 g7 Nd2 Qf8 Kb2 g8B Nd5 Bh5 Nc3 Qd6 Nd1 Nc2 Nb1 Be8 Ra3 Na6 Rc3 Bg2 f1Q Qf2 Rh6 Ne2 Qg1+ Kg3 h2 Ncd4 Rb3 Ne6 Rb4 Qf8 Bb7 Qd6 Bd5 Qf8 Bc4 Qd6 Qe1 Bh3 Qc3 Bf5 Qcf6 Rg1 h1R Rg2 Re1 Rh2 Rh1 Rh5 Rf1 Kh2 Qg6 Qe7 Re1 Ng3+ Re2 Kh1 Rd2 Qh2 f2 Qf8 Qb8 d8Q f1R+ Qg1 Rf3 Qf2 Qc8 Rh3 Qb8 Nh5 Qa8 Qde7 Qd8 Qff6+ Nbc3 Rc1 a1B Qh8 Ka2 Rg3 Nb1 Rg4 Bg7 d4 Bf1 Qa7 Ka1 Qe7 Ba7 Rc7 Bc5 Rb7 Rd3 Qf8 Be5 Rh7 Bg7 Qd6 Bb6 Qc5 Ba7 Qc1 Bc5 Qa3+
6rn/6Q1/q3b2Q/Pq1R4/P1Bk1BR1/rRq1bn1Q/N1bN1Bb1/2Kn3R b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 f4 Kf7 g4 Kf6 d6 h5 d7 b5 a3 e5 Ra2 c5 Nf3 c4 Rb2 e4 Qe2 e3 Kd1 h3 Kc2 c3 Rb4 h4 Re4 h2 Qg2 e2 Re5 e1Q Bc4 b4 Qh3 Qb6 d8R Ne7 Rd3 Qe2 a4 Qb5 Rde3 Nd7 Rd3 Ng6 g5+ Kg7 Rde3 Bc5 Rd3 Be3 f6+ Kf8 f7 Kg7 f8R Rh7 f5 Nh8 g6 Qf1 Rfe8 Kf6 Re4 Ne5 g7 Be6 g8Q Rg7 Qh7 Rg3 Rg4 Qa6 Re7 Rg8 Qh5 Qg2 Re8 b3+ Kd1 b2 Qh6+ Kf7 f6 Qf1+ Ne1 Qf5 Nc2 Nf3 Nb4 Qfb5 Na2 c2+ Ke2 Bg1 Rb3 Ba7 d3 Be3 Nd2 b1N d4 Nc3+ Kd3 Nd1 d5 Nc3 d6 Nd1 Bb2 c1Q Be5 Qa3 Kc2 Qac5 Qg2 h3 d7 Qcc8 d8B Qcc6 Rf1 h1B Kc1 h2 Qgh3 Bg2 Bb6 h1B Bf4 Qcc5 Rc8 Qe5 Rc5 Qd4 Re5 Qc3+ Kb1 Ke8 f7+ Ke7 Re1 Kd6 f8Q+ Kc6 Qfg7 Kd6 Bd8 Kc6 Bh4 Kd6 Re4+ Kc5 Re5+ Kd4 Re2 Bf1 Rh2 Bhg2 Rh1 Qcb4 Qhh7 Bd3+ Kc1 Bc2 Qhh6 Qc3 Ra3 Ng1 Rb3 Rf3 Be1 Rg3 Bf2 Nf3 Q3h5 Rh3 Qh4 Rg3 Qh3 Ne1 Qh2 Qcb4 Bg1 Bf2 Rb1 Ra3 Q2h3 Nf3 Rb3 Be3 Bf2 Qc3 Rd5#
b4N1r/k1bKN2R/3B2bP/N1qQ3n/nqQq1r2/Pr2B3/Q1r1B2N/3R4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 g5 Ke4 e5 d4 c5 f4 Kc7 h4 Kb6 f6 g4 f7 b3 a3 g3 d6 g2 Kd5 e4 h6 e3 d7 b2 Ke6 e2 d5 e1Q+ Be3 Ka7 h7 b5 d6 b4 f5 b3 f6 Qc3 h5 Bb7 Qc2 Qb4 Nf3 g1Q Be2 Na6 Nc3 b1B Nh2 b2 Nd5 Qdb6 d8N c4 Qa4 c3 Ne7 c2 Kd7 c1R Qb3 Qg7 Qc4 Bg6 Rd1 Bbe4 Nb7 b1R Na5 Rc2 h6 Rb3 Rac1 Q6c5 Rb1 Bh5 Rbc1 Qg1 Rb1 Bg7 f8B Bhg6 f7 Be5 Rb2 Rc1 Rbd2 Rc2 Rd5 Qd4 Rc5 Bb7 Rc7 Nf6+ Ke6 Rc8 d7 Qg5 d8Q Rcb2 Bd3 Nh5 Bg7 Rf8 h8Q Rf2 Ng8 Rc2 Be2 Qdb6+ Qd6 Bf4 Be5 Qg4+ Ke7 Nc5 Qdd5 Qc6 Rd7 Qc7 Qg7 Ba8 Qf6 Bg3 B5f4 Rb8 Qa1 Rbd8 Be5 Qd4 Qa2 Na4+ Ke6 Rc8 Re7 Bh4 Rd7 Bd8 Bd6 Rb8 Nf6 Rh8 Ng8 Rb7 f8N Qcc5 Rg7 Rf7 Rh7 Bc7 Ne7 Rf4 Kd7
2nrQB2/n1bRQ2r/5QP1/5N1n/2NbNq2/1q2Pq1b/1RN3k1/1K1RbB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 Kd6 d4 a5 Kd2 f5 Kc2 c5 e3 h5 b6 h4 b7 a4 g6 f3 b5 f2 g5 h3 g7 c4 b6 a3 g6 h2 Bd2 c3 Qh5 a2 Qh4 f4 Nh3 f3 Na3 Nc6 b8N Rh7 b7 Na7 Nd7 Qb6 b8R Ne7 Rd1 a1B g8N Qb3+ Kc1 c2 Ne5 Be6 Ng5 Bh3 Nh6 Nec8 Rg1 h1N Nec4+ Kd7 d6 Kc6 d7 Kd5 d8Q+ Bd6 Rb7 Ng3 Ne4 Nh5 Qde7 Bc7 Bb4 Bc3 Qe8 Be1 Qf6 Rb8 Bf8 Ra8 Bd3 f1Q Rg2 f2 Nf5 Qe2 Rh2 f1Q Qee7 Qef2 Qe8 Q1g2 Bf1 Qf4 Qee7 Qgf3 Rhd2 Qa4 Kb2 c1B+ Kb1 Qb3+ Rb2 Bcd2 Nc2 Bc3 Ned6 B7a5 Rd7 Bc7 Qe8 Nb6 Qee7 Rd8 Qe8 Nbc8 Qfe7 Kc6 d5+ Kc5 Qf6 Bd4 Ne4+ Kb5 d6 Kc6 Qg7 Kd5 Qge7 Qh1 Ng5 Qhe4 Qf6 Qg2 Re7 Rd7 Ne6 Ke4 Nc5+ Kf3 Ne4 Rd8 d7 Qf2 Qef7 Re8 d8Q Q2g3 Qdd6 Rd8 Rd7 Qg2 Qe8 Qf2 Be2+ Kg2 Qde7 Q2f3 Bf1+
bQQr2q1/1RB1B3/r2N1Pqq/3B2Qn/3R1P1N/3nQ3/1rn2bn1/1N1K2k1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 g5 e5 b6 a5 b5 a4 g6 e4 g7 h3 b7 e3 b6 c4 Nd2 e2 Nb3 a3 Bg2 h4 Bf3 a2 Na5 c3 Rh2 c2 Rg2 h2 Qd2 h1R Rb1 a1Q Nb3 h3 Qe3 h2 Nd2 Na6 Ba3+ Nb4 Rg5 Nf6 g8Q Nh5 f6 c1N b8B+ Qc7 b7 Qa2 Rg2 Ra6 Qg5 Bd7 Rb2 Bc6 Nb1 Nd3+ Kd2 e1N Kd1 Be7 Rgd2 Rd8 Bg2 Bf8 Nf3 Rf1 Nh4 h1Q Be4 Rf2 Bf3 Qh2 Be4 Ng2 Bf3 Kd7 d6 Qg8 d5 Nc2 Rb5 Qc8 Bc7 Qg6 b8Q Ba8 Rb7 Nc5 Rd4 Nd3 Nf5 Qh4 Qg3 Qhg5 Nh4 Q5h6 Qg5 Nce1 Ra4 Rb2 Rd4 Nc2 Be4 Ke8 d7+ Kf7 Bb4 Bc5 d6 Ke6 Ba3 Rh8 Bb4 Qcg8 d8Q Ba7 d7 Bb6 Be7 Ba7 Rdb4 Bc5 Bf5+ Kd5 Qdc8 Ba7 d8N Bb6 Qc1 Bd4 Nf7 Bf2 Nd6 Kc5 Nc4+ Kd4 Be6 Ke4 Bd5+ Kd4 Ncd2+ Ke3 Ra4 Q8h7 Rd4 Rd8 Bb6 Qhg8 Bc7 Be1 Nc4+ Kf2 Qd2+ Kg1 Nd6 Bf2 Qe3
1R2B1b1/1Kn2N1n/N3P1Qq/1Q2br2/1b2QbPQ/B7/N1r1rq1n/kB1R4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kc4 b4 h5 d4 a5 d6 c5 g6 a4 b6 h4 d7 h3 d5 f3 b7 h2 b5 a3 b6 a2 d6 f2 g7 Na6 b8Q Qh4 d8Q Be6 d7 Nc7 Qd4+ Kb3 b7 c4 Nc3 Bb4 Nf3 f5+ Ke5 f4 e4 Rh5+ Ng5 f3 Bd3 f1N Qf6 f2 Qg6 Nf6 g8B Nh7 d8Q Bd5 Rg1 h1Q Bf7 Nh2 Ba3 f1R Bb1 Rf2 Rd1 Re2 Be8 Bg8 Qd3 Qf2 Qdf6 Rh4 Nf7 Ra5+ Qd5 Rc5 Kd6 Rh5 e5 Rf5 Qe4 Rc6+ Kd7 Rc5 Kc8 Rc6 Nb5 c3 e6 c2 Qh4 c1B Rd8 Rcc2 Nc3 Bf4 Rd1 Na6 Qbe5 Nc7 b8N Bc1 Na6 Bf4 Rd8 Qc1 Kb7 Qd2 Qb5 Qde3 Bc1 Qh3 Be3 Kb2 Bc5 Qhe3 Rb8 Qh3 Qg3 Qh6 Qh4 Rcd2 Bd3 Rc2 Rd1 a1B Bd6 Rg5 Na2 Rf5 Nc1 Kb1 Bf8 Bae5 Na2+ Kb2 Bd6 Rcd2 Bb1 Rc2 Bc5 Ka1 Be7 Bbd2 Ba3 Bdc3 Rbd8 Bb4 Rb8
3BrB2/1Nn3Q1/3QP1r1/KB2Rq1q/R3b1P1/1rnb1Nn1/2N2k1B/bR5r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 d4 Kd6 Kd2 a5 Kc3 c5 b4 h5 g4 f5 g6 c4 g7 a4 b6 f3 b7 f4 b5 h4 Kb4 c3 b6 h3 Be2 c2 Kb5 f2 Nc3 f1Q Bb2 c1R Nb1 a3 Qd3 h2 Qe3 f3 Bd3 f2 Qg5 a2 Na3 Ne7 g8R Rc6 Nc2 Na6 Ka5 Bf5 Nf3 Rb8 Qg7 Nc7 Bb5 Qe8 Rg1 Qd3 Rgb1 f1N Bc3 h1B Bb4+ Rc5 Ba3 Qh5 Bb4 Re8 b8Q Ng3 b7 Rh6 Rh8 Rg6 Rh7 Qh4 Rh5 Qh3 Rg5 Qh5 Ba3 Be6 Re5 Bf5 Rb4 Rc3 Rab1 a1R Qd8+ Bd7 b8B Rb3 Ra4+ Rb4 Bc1 Rb3 Be3 Qf1 Bg1 Qf2 Bh2 Bg2 Ba7 Bf1 Qb8 Bc6 Bb6 Bd3 Bc5+ Kd7 d6 Qf1 Qh6 Ned5 Qg7+ Be7 Ba3 Nc3 d5 Qf2 Nd2 Qf4 Nf3 Qff5 Qb6 Kc8 Qd4 Kb7 d7 Bf6 d6 Bd5 d8B Bc6 Rb2 Rh1 d7 Bd5 Rb1 Bc6 Rc5 Bd5 e5 B5e4 e6 Ka7 Rd5+ Kb7 Ba6+ Kc6 Bf8 Be5 Qb4 Bd4 Qb8 Be5 Rd6+ Kc5 Bb5 Nd1 Rc6+ Kd5 Rcc4 Ba1 Rcb4 Nc3 Re1 Ra3 Rbb1 Rb3 Qb6 Qe5 Bf6 Bf5 d8N Qf4 Ree4 Qfg5 Rec4 Bfe4 Nb7 Qf5 Bd8 Qf6 Nd2 Ke5 Qc5+ Kf4 Nf3 Qff5 Qa3 Rf1 Rc5 Rh1 Ncd4 Ke3 Nc2+ Ke2 Re5 Kf2 Qd6
r6b/B5Nb/2RBPP1r/1n2r3/1nK1nrk1/1B1Q1q1Q/N2N1B2/2bR1Q1q b - - 0 1 illegal: No proof kernel
B1bb1B2/1Qnr1N1Q/qn1P1q2/1n4r1/QQ3n2/R1b4N/k1N2P2/4BqRK b - - 0 1 illegal: No possible last move, all moves rejected
2n1K3/q1r1B3/nPr1rRQR/2NR3B/Q2Pb1q1/3Qb1k1/1n2bBr1/N6B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 a5 b4 e5 f4 h5 g4 c5 b6 a4 b7 a3 b5 h3 f6 a2 b6 h2 f5 c4 g5 h4 g6 c3 g7 h3 f7 c2 f6 Bg4 Bg2 Ra5 Nc3 Ne7 g8B Be6 Na4 Bg4 Nf3 Rc5 Ne1 Rc6 Nc5 Na6 b8Q+ Qc7 Qe8 Bh6 f8R Nc8 f7 Be2 Kf5 e4 Kf6 e3 d4 Qd7 Qd3 Qg4 Qee4 Bf4 Qg6 Rh6 Bd2 c1N Nc2 Rh7 Be1 Bh6 Bf2 Rg7 Rb1 a1Q Bg1 Rc7 Rb5 Qa5 Qb3 Nd3 Na1 Nb2 Qbd3 Rc6 Re8 Qa4 f8Q+ Re7 Qff7 Rec7 Re5 Qa5 Qe8 Qa4 Bf7 Qa2 Bf2 Qa4 Rf1 h1R Bg1 Rh2 Bh1 Rg2 Rh5 h2 Rff5 Bf3 Rh3 e2 Rh4 Bd2 Rh6 e1R Kg7+ Re6 Kf8 Be2 Rf6 Ne7 Qa8 Be3 Ke8 Qa2 Qg8 Qa5 Bh5 Qa2 Qgg6 Nc8+ Kf8 Nb4 Qa4 Qa3 Qac2 Qa7 Qa4 Na6 Ncb3 Kd7 d6 Rc4 Nc5+ Kc6 d7 Kd5 d8B Rc2 Rb3 Rc4 Ne4 R4c6 Nc5 Rh7 Nb7 Rhc7 Be7 Qf5 Qc3 Ke4 Qd3+ Kf4 Ke8 Rc1 Qf7 R1c6 Rb5 Kg3 Rd5 Qh3 Qfg6+ Qg4 Nc5 Rf2 Bg2 h1B Bh3 Bhf3 Bg2 Be4 Bh1 Rg2 Bf2+
K4n2/1QrN2k1/PrB4r/n2RbqQ1/2B2qNn/4Q1PN/3nb3/B3bBR1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 b5 Ke3 h5 Ke4 c5 a4 c4 d4 f6 d6 Kf7 Kd5 f5 e4 b3 a5 h4 e6+ Kg7 a6 b2 e7 h3 e8Q b4 e5 c3 g6 c2 e6 b3 e7 h2 d7 f4 Nc3 b1R Qf3 b2 Nd1 Qc7 d8N Bg4 Nf2 Rh6 Nf7 Ra7 Ngh3 Nd7 Rg1 h1N Ne5 Ng3 Ra5 Nf5 g3 Nh4 Qh1 Qb8 Kc6 Be2 d5 f3 Nfg4 f2 d6 Qb4 Bf4 c1B Rd5 Bd2 Be3 Be1 Bd4 Qd2 Qe4 Qa5 Qc8 Qd2 e8B Qf4 Qb7 Ne7+ Kc7 Qf5 Qe3 Nc6 Kc8 Na5 Bc3 Kg8 g7 Be7 Kc7 Nf8 Kb8 Bf6 Nd7 Be5 Bd4 Kh7 g8B+ Kg7 Be6 Ra1 Bg8 b1N Bc3 Ra4 Ba1 Rb4 Ndf6+ Qd7 Rd4 Nd2 Qb5 Nhg6 Bg2 f1Q Bc4 Rh4 Rd5 Rc7 Ka8 Bb2 Qb7 Qdf5 Bc6 Q1f2 Bf1 Rh6 Ne5 Rb6 d7 Qd3 d8Q Qdf5 Nfg4 Q2f4 Nd7 Nh4 Ng5 Bc3 Nh3 Be5 Qg5+
BnQb1rkn/2qNQbQ1/PB2Nqr1/3n1QR1/3r4/1q1P3B/3K2R1/1N4n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Nc3 Kf7 g4 c5 a4 h5 f4 Ra6 d3 e5 a5 b5 d6 e4 d7 c4 f6 e3 f5 h4 Nge2 b3 Nf4 b2 Rh2 b1Q Qd2 Be7 g6+ Kf8 f7 b4 g5 h3 Bg2 b3 Ba8 b2 Ra2 e2 Rg2 Kg7 f8N h2 Rg4 Qb6 d8Q Be6 Nd7 Rh4 Qe8 Bd8 Qe7+ Kh8 Rg3 Nh6 g7+ Kh7 f6 h1R+ Rg1 Nf7 g8B+ Kh8 Qe3 Qb3 Bh7 Qa1 Bf5 b1N Bh3 Rh2 Qe4 Rf2 Be3 Rc6 a6 Rf3 Ncd5 c3 Bb6 c2 Nc3 Rg4 Ra5 Rf2 Rg2 c1Q+ Nd1 Qc5 Nc3 Rd6 Qc6 Rh4 Qc8 Qc7 g6 Bc4 Be3 Rf3 Rag5 Bd5 Bb6 Re6 Nb5 Nc3+ Kd2 e1N R5g3 Ne5 g7+ Kh7 f7 Ng6 f8Q Nh8 Qff7 Rg6 Na3 Be6 Rg5 Nd5 Nb1 Qae5 Ne2 Rd4 Qff6 Rf1 Qf2 Bg8 Nf4 Qf5 Ne6 Nf3+ Ke2 Ng1+ Kd2 Qf8 Qf4 Qf5 Qf3 Qfe5 Qg4 Rf8 Qf5 Bf7 g8Q+ Kh6 Bg4 Qf6 Bh3 Re8 Qgf8+ Kh7 Qh6+ Kg8 Qf3 Rf8 Qf2 Qce5 Qf5 Qc7 Qg7+
rQ4bK/1R1QR1nP/3brB2/3b3k/1nQPBqq1/qN1B4/7q/4rRNQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 Kf3 c5 Ke4 f5+ Ke5 Kf7 e4 a5 b4 g4 h4 c4 d4 a4 h6 Kg6 d6 g3 h7 f3 b6 a3 b5 g2 b7 f2 d7 f4 b6 c3 h5+ Kg5 h6 a2 Qb3 c2 Bd3 f1B Qc4 Na6 b8R Nb4 b7 Nf6 Nd2 Ne8 Nb3 Qc7+ Ke6 Rg8 Kf7 Rg6 h8Q Ng7 Kg8 Re6 e5 Bd6 d8Q+ Kg4 h7 f3 Bg5 c1Q Qd7 f2 Bf6 Qf4 Re1 a1Q Be4 Be2 Rf1 Qa2 Rh3 Qa6 Re3 Kh5 Bd3 Qa3 Re4 Re7 e6 Bf3 Ree1 Bd5 Re3 Rf7 e7 Qg4 e8B Qf4 Ra1 f1R Re7 Re1 Rd1 Re6 Rf1 Re1 Qdc6 Bce6 Qd7 Nf5 Qg7 Qh2 Qg3 Ng7 Qe3 Qf4 Qec1 Qh2 Kh8 Qf4 Nf3 g1Q Qb1 Qgg4 Ng1 Qa2 Qd1 Qc5 Qf3 Qah2 Qh1 Qa7 Qdb5 Qa3 Bc6 Nf5 Qa4 Rg7 Qa7 Rg6 Qa4 Ng7 Qa7 Bg2 Bce4 Bg8 Qa4 Bf3 Qd7 Bg2 Rc8 Bf3 b8Q Rh6 Rc7 Bg2 Be5 Re6 Rb7 Bf3 Bf6 Bg2 Bf5 Bd5 Bfe4
r1r2Q2/5P2/3Nb1kn/b1BNqQ1r/qq4PR/1nRn1B2/3BN1Q1/n2K2N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 d4 h5 g4 a5 f6 e5 b6 c4 f5 e4 d6 e3 d7 h3 b7 h4 b5 h2 b6 a4 d5 a3 d6 e2 Nc3 a2 Nd5 c3 Bg2 h3 Bf3 c2 Bd2 c1N Qc2 Nb3 Rc1 Qe8 d8Q a1Q d7 Na6 b8N Qa5 b7 Nh6 Nc6 Nb4 b8Q Qa4 Qf4 Qe5 Nd4 Bc5 Qb2 Bb6 Rc3 Ba5 Qa2 Na6 Qc2 Na1 Qb2 Nc5 Qe7+ Kg8 d8N Ncb3 f7+ Kg7 f6+ Kg6 f8B Be6 f7 Rg8 Nb7 Rh8 Bg7 Rhc8 Nd6 Qb4 Qf8 Qa4 Kf2 e1N Bf6 Qb4 Be7 Nd3+ Kf1 Qf5 Ke2 Qe5+ Kd1 Qa4 Ne8 Qb4 Bc5 Qa4 Nge2 Qb4 Nd6 Qa4 Re1 h1Q Ng1 h2 Nde2 Qg2 Rf1 h1R Rf2 Qh3 Rh2 Qh4 Qa2 Qe7 Rh4 Qb7 Qb2 Qbb4 Be1 Bc7 Nd4 Rh2 Rh5 Qa6 Qg2 Rh1 Bd2 Qaa4 Ne2 Rh3 Nc1 Ba5 Nce2 Rg3 Rh2 Rh3 Rh1 Rh5 Rh2 Qbe4 Rh4 Qeb4 Qf5+
B1Qb1qq1/1rn2P2/R4RQB/1n1PRr2/3rQ2N/3b2Nr/K1BRn1q1/5k2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 Kd2 e5 Kc3 a5 Kb3 e4 g5 e3 g6 a4+ Ka2 c4 g7 a3 b6 h3 b5 c3 b7 h2 b6 e2 f6 e1Q f7 h4 f5 c2 f6 h3 Nf3 Qee7 Nfd2 Bf5 Qh5 Bd3 Qh4 Ra5 Qg5 Na6 b8Q+ Nc7 b7 Rh4 Nf3 Nh6 g8B Nf5 Nc3 Rf4 Rg1 h1Q Qa8 h2 b8Q Qg2 Qc8 h1R Bh7 Rh3 Ne2 Qee8 Qg8 Be7 Nh4 Qf8 Qg6 Ra7 Rh1 Rb7 Ng3 Qg8 Be2 Qdf8 Bf3 Bd8 Re1 Re4 Bh6 Re5 Rad1 Re4 Rd2 c1N+ Ka1 Rg4 Re5 a2 Qa4 Ne2 Qc2 Bc4 Qe4 Bb5 Kb2 a1R Kb3 Rf1 Ka2 Qfg7 f8R Bd3 Rf7 Q7f8 Rfe7 Ng7 f7+ Nge6 Rf5 Nb5 Re5 Rb6 Ra7 Rb7 Ra6+ Ke7 Qh5 Kf6 d6 Rf4 d7 Rf5 Qe3 Rd1 Bc6 Nec7 d5 Rc1 Qg4 Rc4 Qge4 Rd4 Qg1 Rb8 Ba8+ Rb6 Bg7+ Kg5 Bg6 Rb7 Qb1 Be7 d8R Bf6 Rdd6 Bd8 Qe3+ Kg4 Bh6 Rh1 Qf4+ Kh3 Rf6 Kh2 Qc2 Kg1 Qe4 Rh3 Bh5 Nf4 Bd1 Ne2 Qc6 Kf2 Bc2 Ke1 Rg6 Kf2 Qf6 Ke1 Qg7 Kf2 Rgf6 Kg1 Qg6 Kf2 Nh1+ Kf1 Ng3+
2Nn3B/KQ2BP2/1R2qP2/3r1B1R/1bN3q1/1rrbb2R/Q1q1N3/k3nqN1 b - - 0 1 illegal: No possible last move, all moves rejected
1Br5/Nr3PK1/1P4Qr/nB1B1qb1/BN2R3/rqn3Rb/2nQ4/k2Rq2Q b - - 0 1 illegal: No possible last move
Nk2b1nB/4Pr1R/B1r2q2/KPrn4/3r1q1q/b1nRRQB1/3Q3B/Q4N2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Kd7 h4 a5 e4 c5 d4 Kc7 Kd2 f5 Kc3 g5 h6 c4 h7 a4 b6+ Kb7 h5 g4 h6 f3 d6 a3 d7 a2 e5 g3 d5 g2 e6 f4 d6 f2 Nh3 g1R Ng5 f3 Bf4 Ra7 Nd2 Ra5 Bh2 Rc5 Bg3 Qe7 d8Q Na6 d7 Nc7 Rh3 Ka8 b7+ Kb8 Rb1 a1R Rb3 Ra6 Be2 Rac6 Nf1 Rg2 Bh2 Rg4 Qd3 Ka7 b8B+ Kb7 Qd2 Rd4 Qe8 Qf6 d8R Bd7 Qf7 Be8 Rd7 Bd6 e7 Ka8 Ne6 Qh4 b5 Kb7 Kb4 c3+ Ka5 c2 Re3 c1N Bc4 Na2 Bd5 Nc3 Rd8 Na8 Nc7 Nb6 Be6 Nbd5 Na8 Ngf6 Bd7 Rf8 h8Q Ng8 Bc7 Ka7 h7 Kb7 Qf5 Rf7 Qhe5 Ka7 h8B Kb7 Bc8+ Ka7 Ng3 f1Q Ba6 f2 Qf3 Qc4 Qg7 f1Q Rd7 Qf6 Rh7 Qh3 Nf1 Qg3 Qg6 Qgh4 Qb1 Qhf4 Bb6+ Kb8 Qa1 Rc7 Bg3 R5c6 Bh2 Ba3 Bc5 Q4h4 Bcd6 Rc5 Bdg3 Qhf4 Qc2 R7c6 Rd6 Qa2 Qd3 Qf2 Qd2 Q4h4 Rd3 Qe3 Re6+ Qef4 Ree3
1N1q4/3P1q1B/1Q1Rr3/K2NNr2/1P1BbbB1/4B3/3nRnQk/1rQb2qr b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 c5+ Ka4 e5 g4 a5 b4 h3 f4 c4 b6 e4 f6 h2 f7 h4 b7 h3 f5 e3 f6 e2 g5 e1R g6 c3 g7 c2 Kb5 a4 Qd3 a3 Be2 a2 Qf3 Bg4 Be3 c1R Qg2 Nh6 g8B Nc6 b8N Ne5 Bh7 Nf3 Nc3 Nd2 Nf3 Rb1 Ne5 Ra3 Rf1 h1Q Rf2 h2 Bf3 Be7 f8Q Qf1+ Re2 h1B f7 Ra7 Qg7 Bg5 f8B+ Re7 Qg8 Bf4 Bg7 Rf7 Qe8 Bh5 Bg4 Rf5 Ka6 Qf3 Qb5 Re8 Qc4 Re6 Bh8 Rb2 Rc1 Rb1 Rd1 a1Q+ Kb5 Qa7 Qc8 Qf7 Ka6 Qf1 Qc4 Qc8+ Ka5 Qg1 Bf6 Ng8 Bg7 Nf6 Bh8 Nfe4 Bg7 Nf2 Qc6+ Ke7 d6+ Kd8 d7 Ke7 Qc4 Kd6 d8Q+ Qcd7 d5 Rf1 Qh3 Be4 Qg2 Re1 Qdc8 Rf1 Qb5 Qd8+ Qb6+ Ke7 Bf8+ Kf6 d6 Kg5 d7 Kh4 Bfc5 Re1 Bcd4 Rf1 Qh1+ Kg3 Qf3+ Kh2 Nd5 Qg3 Qc5 Rh1 Qc1 Nf1 Rd3 Nd2 Rc3 Qg1 Rc6 Bc2 Rd6 Bd1 Bh3 Bg4 Qe4 Bf3 Bg4 Bg2 Qec2 Be4 Qc6 Bd3 Nc7 B3c2 Qf3 Bd3 Nd5 Be4 Qg2+
Q1B2NBb/n2P1qB1/3rrb1N/1R2rb2/QP1n1K1n/6N1/1k1Nr2Q/1q3R2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 g4 Kc5 b4+ Kd4 d6 a5 d7 e5 g5 h5 d3 c5 b6 c4 g6 a4 f6 e4+ Kf4 a3 b7 h3 f3 e3 g7 h2 f7 h4 Kf5 e2 f4 e1R Ra2 h3 Rc2 c3 Rf2 a2 Qd2 a1B Qc2 Qc7 Nd2 Re2 Qa4 Nc6 b8Q Na7 Bb2 Be7 f8Q Bf6 Rg2 Qb7 Rg5 Rh5 Qe8 Re6 d8N Qf7 Bg2 Rh6 Bb7 Ne7+ Kg4 Re5+ f5 Ng6 g8B Nh4 Kf4 Bh8 f6 Bf5 Bc8 Re6 Ba3 c2 Rh5 Kc3 d4 c1N d5 Re5 d6 Nb3 d7 Nd4 Qd6 Rb8 Bc1 Rb6 Ne2+ Kd3 Ng3 Kc3 Qb8 Rbe6 Rf1 h1Q Qf8 h2 Bb2+ Kd3 Rg5 Qg1 Qa8 h1R Qd6 Rh2 Bc3 Rhe2 Qdb8 Qe7 f7 Rd6 f8N Rhe6 Nf7 Qh1 Qa6+ Kc2 Nh6 Qf7 Qa4+ Nb3 Rf2 Qb1 Bd4 Bc3 Rf1 Kb2 Rh5 R5e3 Bg7 Bf6 Rg5 Nd4 Rh5 Bd3 Rb5 R3e5 Qbb7 Bh7 Qg2 Bf5 Qh2
KB3rq1/1P1knbR1/N2b4/1Q2qq1r/BN6/n3rNRn/P3N1R1/5QnB b - - 0 1 illegal: No proof kernel
2B4B/PrN1nR1n/R2bK3/3N4/1Pn1k2b/q2Q1qB1/2N1r1qq/1B1bR1Q1 b - - 0 1 illegal: No proof kernel
3rnr2/rkb5/2N1R2q/2B4r/R1K1n1nP/3r1b1N/QQR4P/B1R2BQr b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 a4 exf4 g3 b5 axb5 h4 gxh4 Ba3 Qc2 Bb4 Qd1 Bf8 e4 Kd7 Ke2 c5 Kd3 Kc7 b4 g5 b6+ Kb7 e5 f5 e6 a5 e7 a4 e8Q c4+ Kc3 g4 d4 g3 b5 a3 d6 a2 d5 g2 d7 f3 d6 f2 Qf3+ Nc6 Qd5 f4 Na3 f3 Qe7 Rh5 Nc2 Nf6 Nb4 Ne8 Qg7 Qg5 Bb2 Qh6 Nh3 g1R d8R+ Be7 d7 Bd6 Re1 a1R Re6 R1a7 Ba1 Rg3 Qd2 Bc7 Qa2 Ne5 Nc6 Ng4 Kb4 c3 Kc4 Nef6 Rf8 c2 d8R c1N Rd2 Nd3 Rc2 Ne8 Rf4 Nc5 Rg1 Bd7 Qgb2 Rd8 Qbb1 Ne4 Qe1 Bb8 Qe3 Kc8 b7+ Kc7 Qe1 Kb6 Rh1 Bc7 b8B Kb7 b6 Bc8 Rf5 Bd7 Ra5 Bc8 Ra4 Bd7 Be2 f1R Qf2 Bc8 Qg1 f2 Bd3 Re1 Be2 Rgd3 Bf1 Bg3 Bbe5 Bd7 Bed4 Bc7 Be2 f1R Bc5 Rf8 Bf1 Kc8 Nb4 Bc6 b7+ Kd7 b8Q Ba8 Qb5+ Kc8 Nc6 Rc1 Qa5 Kb7 Qb5+ Bb6 Qd4 Nc3 Bg2 Kc8 Qbb2 Bc7 Nb8 Bf3 Nc6 Ne4 Qe3 Rf1 Qec1 Rf2 Rd1 Rf1 Qe3 Rh1 Bf1 Bd6 Qg1 Bc7 Qf6 Kb7 Rdc1 Ba5 Qe5 Bc7 Qeb2+
1RQ3R1/3Nr2b/b5qP/1rNBB1kP/7b/n3N2Q/3rb1nN/R1Q1b1Kb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 h4 f5 b4 g5 c4 a5 e4 d5 b6 a4 b7 g4 e6 Kf6 e7 d3 e8R a3 h6 d4 h5 f4 c5 f3 b5 g3+ Ke1 g2 Kf2 d2 c6 a2 b6 d3 c7 Ra5 Be2 Be7 Qc2 d1B Qd2 Na6 b8Q Bf5 c8N Nc7 b7 Nb5 Ba3 Bh7 Rh4 Qd6 Qc1 d2 e5+ Kf5 e6 Ba4 Nb6 d1B Rg4 Nf6 Bc4 Nd5 Rh4 Ne3 Bb2 Na3 Nc3 Bc6 Rd8 Kf6 Rg4 Re8 Rg8 Rc5 Nba4 Re5 Rb1 a1B Nd5+ Kf5 Bd4 Bc3 Ra1 Bg5 e7 Qg6 Rc8 Rd8 e8N Re7 Qg3 Bh4 b8Q Rdd7 Nc5 Rb7 Ne2 g1R Nef6 Re1 Ng1 Be2 Rce8 Rb5 Nfd7 Rd1 Be5 Bb7 Qc7 Ba8 Rb8 Rd4 Nh3 Be1+ Kg1 Rd2 Nf2 Bb7 Ng4 Kg5 Qc8 f2+ Kh2 Ba6 Qh3 f1B Kg1 Bg2 Nh2 Bh1 Ba2 Ng2 Ne3 Rg7 Bb3 Re7 Bd5
2Q5/b2b1PNN/NQbB1N1n/1R2Rr1b/PK4B1/1nr2qB1/3k3b/1n1Qb3 b - - 0 1 illegal: No possible last move
3bn2K/N2P2Rn/3b4/1NRB1BPN/br5B/nrb1kbR1/R2b4/2Q1Q1q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 c6 b4 h4 f5 e6 b6 e3 g6 e2 b5 e1B f6 h3 b7 a4 b6 a3 f7 h2 g7 a2 Nh3 Qe8 Nc3 Rh5 Rg1 h1B Bd3 Rh4 Nf4 Nf6 g8B Nh7 Nh5 Na6 b8R Nc7 b7 Bd7 Rg3 Bf3 Bf5 Ra3 Rc8 Rb3 b8N Qe7 d3 Ne8 Bg5 Bd2 Qe1 Qd8 Rc7 Qe7 Rc1 a1N Rc2 Qd8 Ra2 Be7 f8Q e5+ Kc4 c5 d4 e4 Qh6+ Bf6 Nc6 e3 Na7 Ba4 Rg7 e2 Bge6 Nc2 Bf7 Rh3 Bh4 Qb6 Kd3 Rb4 Ncb5+ Ke7 Qf4 Na3 g5 Bc3 Qfc1 c4+ Ke3 Qc5 Kf4 Qb6 Nc7 Kd6 B7e6 Be7 Bf7 Bd8 Ncb5+ Ke7 Ke5 Qc5 Qf1 e1B Qf2 Bed2 Qfe1 Qb6 d6+ Kf8 d7 Ke7 B5e6 Bf4+ Kf5 Bd6 d5 Qg1 Kg6 Bb2 Qed2 c3 Bf5 c2 Qf2 Bc3 Kh6 Bb6 d8R Bbc7 Rc8 Bd8 Qcf1 c1B Rc5 Bcf4 Qc1 Bfd2 Qfe1+ Bde5 Nc7 Kd6 B7e6 Bef4 Kg6 Bfe5 Kf7 Bef4 Kg8 Bfe5 Kh8 Bef4 Be4 Ke5 d6+ Kd4 d7 Bd6 B4d5 Kd3 Bf5+ Kd4 Qed1 Ke3 Ncb5 Rb3 Rg2 Rg3 Qf1 Rg4 Rg3 Rgb4 Qfe1+
2Kb1BbQ/N1P1b2n/r1BbR1rN/P5Qq/1N1nk3/B4R1b/4n2B/1b5Q b - - 0 1 illegal: No possible last move
1R1Rr2n/3N1k1r/2b1Rn2/3QbK1b/1n1Nn2N/2P2Bq1/Q1P3Bb/1RB2n2 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 f5 exf5 gxh4 Ra4 c4 Ra1 c3 dxc3 Bb7 Qd4 Ba6 Qd1 Bc8 Kd2 h5 Kd3 d5 b4 e5 f4 a5 g4 d4 Ke4 d3 b6 a4 b7 a3 b5 a2 b6 d2 f6 h3 g5 h4 g6 h2 f5 h3 g7 Qd6 Bg2 Nc6 b8N Nb4 b7 Kf7 Nd7 Ne7 b8R Ng6 Qh5 d1N Rb7 Rh7 Qh4 Nh8 Na3 Ne3 Nc4 Ng4 Rb1 a1N Qg3 Nb3 Nd2 Qc7 Qh4 Bd6 Ngf3 Qb8 Rd1 h1B Nd4 h2 Re1 Bc7 Qg5 Nc5+ Kf3 Ne4 g8B+ Ke8 Bb3 Bd6 Ba4 Kf7 Bc6 Qc7 Rb5 Bb7 Re2 Re8 Re3 Ba6 Rb8 Bb5 Ba8 Bc6 Re1 Nh6 Rd8 Ng8 Kg4 Qb8 Bf3 Bg2 Re2 h1N Re3 Bf1 Bg2 Bfb5 N2f3 Nhg3 Nh4 Nf1 Re1 Be2+ Bf3 Ne7 Qd2 Ned5 Qd3 Kg8 f7+ Kg7 f8R Ndf6+ Kh3 Bc7 Qa6 Bd6 Qa2 Qc7 Bg2 Bh5 Bf3 Ned2 Rb8 e4 Rd8 e3 Bg2 Ba4 Baf3 e2 Qd5 Be5 Rb8 Re6 Rfd8 Kf7 Qa2 Bc6 Qd5 Ng8 f6 Ne4 Qa2 Bg6 Kg4 Bh5+ Kf5 Bh2 Rd1 e1B Rd2 Beg3 Re2 Nd5 Re3 Re8 Re2 Nc5 Re6 Nb4 Qd5 Ne4 Ne5+ Kf8 f7 Ngf6 Nd7+ Kg7 Qc4 Be5 Qa2 Qb7 Qd5 Qb5 Qa2 Qe2 Qd5 Qe1 Qa2 Qg3 Qd5 Rh6 f8Q+ Kh7 Qfd6 Kg8 Qb3 Rh7 Qa2 Kf7 Qdd5
2b2r2/1RQ1NkNn/nBB3r1/KBqrPr2/1Q3r2/3Q3b/1NQ4P/1b1Rb3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 b4 d5 c4 f5 e4 g5 h6 g4 c5 g3 h7 g2 b6 d3 Kc3 f4 b7 a4 c6 d2 b5 f3 b6 a3 e6 f2 c7 a2 e5 Qd6 e7 Bh3 c8Q+ Kf7 Ne2 g1R Nf4 Bg4 Ne6 Nf6 Na3 Na6 b8Q Qc5+ Nc4 d4+ Kb3 d3 Ka4 Rg2 Rb1 a1R+ Ba3 Bf5 b7 Rg6 Ng7 Ra7 Qc6 Bc8 Qbc7 Ra2 Qc2 d1B b8Q d2 Q6d6 Bdg4 Qbb7 d1B Qb4 Bh3 Nb2 Ra8 Bd3 f1R Bb5 Rf4 Ka5 Bdg4 Qdd7 Bf5 Qdd3 Rb8 Rhg1 Rb6 Rgd1 Rd6 Ne6 Bh6 Ng7 Rd5 e8B+ Kf8 Bd7 Kf7 Qce2 Rf8 h8N+ Kg8 Qf2 Nh7 Qfc2 Bg5 Bc6 Bh4 Qe3 Be1 Qed3 Rgd6 Ng6 Ra1 Qd8 Kf7 Ne7 Rg6 Qc7 Be4 Na4 Rf5 Bc1 Ra3 Be3 Rc3 Nb2 Rc4 Qa3 Bd3 Bf2 Rcf4 Bd4 Bc4 Qad3 Ba2 Bf2 Qc3 Bb6 Qc5 Ra1 Bb1 Ra3 Qc3 Rb3 Qc5 Ba7 Rfd8 Qbd2 Qe3 Bc5 R5d6 Bc4+ Rd5 Rb7 Qf2 B4b5 Rf8 Bb6 Qc5 Qb4
Bb1K1n1B/5b2/5rNR/4Pq1N/1Q1Br1Nq/P2Rrnkr/Q7/R2Br1r1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg3 c5 Kh4 f5 Kg5 b5 d4 g6 e4 c4 h4 b3 e6 Kd6+ e7 b4 h6 b2 h5 f4 a3 c3 h7 c2 h6 b3 Qd2 f3 Nc3 b1Q Nge2 f2 Nd1 b2 Ne3 Be6 Ng3 Nf6 e8B Nc6 Be2 f1R Nh5 Bf7 Ng4 Ra4 Bd1 Ne5 Bc6 Qe7 Ba8 Nf3+ Kf4 g5+ Kf5 Nd7 Qb4+ Nc5 Be3 c1R Rh4 Rc3 Bf2 Re3 Rh1 Kd7 d6 Ne6 d5 Qd3 Bg1 b1R Rh2 Qc2 Rh4 Qf2 e5 Rc1 Rh3 Rc6 Rh4 Rfe1 Rh3 Qd8 Rh2 Qc8 Kf6 Qh4 Rh3 Raa6 Bf2 Rc4 Rh1 Rce4 Rh2 Kd8 d7 Bd6 Bg1 Kc7 d8R Nf8 Bf2 Rd3 Bd4 Rde3 Nf2 Qch3 Ng4 Qf1 Rd7+ Kc8 Rh3 Bb8+ Ke7 Rf6 Rd6 Kc7 Rb6 Qd3 d6+ Kc8 d7+ Kc7 Rb7+ Kc6 Kd8 Kd5 Rc7+ Ke6 Rc3 Kf5 Rh1 Qf1 Rd3 Qfh3 Kc8 Qf1 d8Q Qfh3 Qd5 Qf1 Nh2 g4 Qa2 g3 Ng4 g2 Kd8 g1R Rh2 Rg8 h8N Kg5 Ng6 Rh8 h7 Kf5 Ng7+ Kg5 Ne7 Kf4 Ng6+ Kg3 Rh1 Qg5 Rh6 Qf5 Ne6 Qh3 Nef4 Qh4 Ne7 Rg8 h8B Rg5 Neg6 Rh5 Rh7 Qhg5 Rh6 Rh3 Rb3 Qh5 Rd3 Qh4 Nh5+
qrBKQ3/2nNNNB1/5r2/4Pnbr/4Pk1Q/1b1RR3/2Q1rrB1/1B4rq b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 b4 a5 g4 d6 c4 d3 g6 h4 c5 f6 c6 h3 g7 a4 c7 d2 b6 h2 b5 a3 g5 a2 b7 Rh5 g6 Be7 b6 Nc6 b8Q Ra6 b7 Nd4 Qc2 d1R Nf3 Nf5 Bg2 Re1 Bh6 d5+ Kf4 d4 Nc3 d3 Nd5 d2 Rd1 Bd7 Qc8 a1R b8N Rb1 e3 Re2 Rhe1 h1Q Ke4 Ba3 Ne7 Bc1 Kf4 Qf8 Qe8 Bb5 Nd7 Ba4 c8B Rb8 Ke4 Bb3 Kf4 Nh4 Ke4 f5+ Kd4 f4 Kc5 Raa8 Kc6 Nf5 Kc7 Ra2 Kd8 Rf2 Re2 Nf6 Ree1 Nd5 g8B+ Qf7 g7 Nc7 Bh7 Qg8 Ng6+ Kd5 Ng5+ f3 Nf7 Qh8 g8Q Re2 Bh3 f2 Bg7 f1R Ne7+ Ke6 Qgf8 Ra6 Bg6 Rff2 Qg8 Qa8 Bg2 Qh7 Qh8 Rab6 Rf1 Rc6 Rde1 d1R Rh1 Bd2 Rh3 Ra1 Rd1 Bc1 Rd5 Bd2 Rg3 Rg1 Rd3 Nh6 B6e4 Rh3 Qd1 Rh2 Rd5 Ra6 Bb1 Qe4 Bf1 Qh1 Bg2 Rd6 Rd3 Rh3 Ng8+ Kf5 Qc2 Rf6 Rf3+ Kg4 e4 Bg5 Ne7 Nf5 Rfe3 Kf4 Qh7 Rhh6 Qhh8 Rhg6 Qh5 Rh6 Qh3 Rh5 Qh4+
2B3N1/n2r1r1b/Q1RrP2R/2BQ1R1q/1nQ1bK2/b6R/N2P1b2/r2rN2k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 b4 a5 h4 c5 b6 g5 h6 f5 h5 a4 h7 a3 b5 a2 h6 c4 b7 c3 b6 g4+ Ke2 g3 Kf3 g2 d6 c2 d7 Nc6 b8R Nge7 b7 Ra6 Be2 Na7 Ba3 c1R Qb3 Nd5 Nc3 Qa5 d8Q Rd1 Qc4 Rd6 Rh3 Nb4 Rc1 a1R Na2 Rg8 h8Q+ Rg7 Qhg8 Rgd7 h7 Qd5 h8R Be7 Kf2 f3 Ke3 f2 R8h6 f1B Bg4 Bd3 Qb6 f4+ Kf3 Qf7 Qba6 Qh5 Ra8 Bf8 b8N Bb7 Qgf7 Nbc6 Bc5 Nb4 Ne2 g1B Nd4 Be7 Nc2 Bf2 Ne1 Bd5 Qf8 Bg8 Qd8 Bh7 Rc3 Nac6 Ra7 Bb1 Rc7 Na7 Rc6 Bc2 Ra3 Bd3 Ra5 Bf8 Kg2 f3+ Kh2 Kf4 e5+ Bde4 Rb5 Rc7 Bc8 Rcd7 e6 Bh4 Bd4 f2 Bc5 f1R Qda5 Bf2 Qd8 Rf7 Nd7 Rg1 Ra5 Rgg7 Nf6 Rfd7 Rb5 Rgf7 Ng8 Rd5 Qa3 Rc7 Be7 Bg7 Rcc5 Bb2 Qa6 Ba3 Rc6 Rd3 Qdd4 Rd7 Rf5+ Kg4 Qe5 R3d4 Bc5 R4d6 Qed5 Bh4 Rhf3 Bg3+ Kg1 Kh3 Kf1 Kh2 Ke2 Kh1 Ke3 Bh4 Kf4 Bf2 Rh3+
2QBR3/1Q1B1nNq/PR1r4/3b2b1/2Q1r2N/b1k3Nr/R1Nrbn1P/K6b b - - 0 1 illegal: No possible last move, all moves rejected
b2r1BbQ/2kn4/P5b1/1N1RP2Q/2N2b2/1K1bn2R/1n1NQnRR/1B1r2q1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 e4 b5 d4 g5 Kd2 f5 Kc2 c5 h4 c4 a5 g4 e6+ Kc7 a6 b3+ Kc3 b2 h6 b4+ Kc2 f4 e5 f3 e7 f2 e8Q g3 h5 g2 h7 c3 h6 Nf6 Ne2 g1N Rh3 Nbd7 Ra2 Ng4 Qh5 Bb7 Nd2 b1B+ Kb3 c2 Ba3 Ne3 Nc3 Qg5 Bd3 f1B Qde2 Rd8 Bf5 Rg8 h8R Ba8 h7 Bh6 Rh2 Nh3 d6+ Kb6 d5 Qg1 Bg6 Bf4 Nb5 Nf2 Rh3 Rg7 Rg8 Bg2 h8Q Be4 Bh7 Bd3 Bf5 Rg2 Rg7 Rh2 Rg2 Rh1 Rgh2 Qg5 Bh7 Rd1 Bf5 Qg1 Bh7 Nf8 d7 Bg6 d6 c1N+ Ka4 Ncd3 Kb3 Nb2 Rg2 Re8 d8N Bbd3 Nf7 Rd8 d7 Kc6 Nfd6 Kb6 Nc3 Kc7 N6c4 Bf7 Bf5 Bg8 Bh7 Rc8 d8R Nd7 Rf8 Rd8 Rf6 Bb1 Rd6 Bg6 Rd5 Nbd3 Ka4 b3 Bf8 b2 Kb3 b1B Rgh2 Nb2 Nb5+ Kc8 Rg2 Bbd3 Qh4 Bgf5 Rg4 Bb1 Nf1 Nfd3 Qf3 Na4 Rah2 Nf2 Qh5 Nb2 Rgg2 Bfe4 Bf5 Kb8 Nfd2 Kc8 Bg4 Bg6 Qe2 Bbe4 Bf3 Bef5 Be4 Kb8 Bb1 Bd3 Na7 Kc7 Nb5+
Rb2N3/1rN1B1P1/1R6/3B3r/2bQ1Nb1/1r1Q2Qb/2BP1qnK/3krQnb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 Kd6 Kg2 Kc5 e4 Kd4 b4 f5 e5 a5 g6 h5 d6 c5 b6 c4 g5 a4 b5 c3 g7 a3 d7 h4 b7 a2 e6 c2 g6 h3+ Kh2 f3 b6 f4 e7 f2 e8B f3 Nc3 Ra7 Bf7 Qf6 d8Q+ Nd7 b8Q Nh6 g8N Nf5 b7 Ne3 g7 Rh5 Qe8 Ne5 Kg3 h2 Qd8+ Bd6 Nge2+ Kd3 Nd5 Bg4 Ba3 c1R Rg1 Qf5 Ngf6 h1B Ne8 Rc3 Qf6 Bc7 Be7 Rca3 Bg2 f1B Bg6 f2 Qd8 Nf3+ Qfd6 Rc3 b8Q Rb7 Rb1 a1R Rb6 Rb3 Bh7 Nh4 Kh2 Rab1 Qe1 Kc2 Qd7 Ra1 Qbd8 Rc1 Qg3 Bb8 Ndc7 Rcb1 Bf3 Bfh3 Qb5 f1B Qd4 Neg2 Bd5 Re3 Qef2 Rbb3 Qa6 Re4 Qb5 Qf3 Nf4 Bd3 Qfe3 Qf2 Ra1 Ree5 Ra7 Kd1 Ra8 Bf1 Qec3 Re1 Bb1 Bfe2 Qbb4 Ba6 Qbc4 Bb5 Qf1 Bc4 Ra2 Nf5 Qdd3 Nd4 Ra8 Ne2 Qcd4 Ng1 Bc2+
K1bkr1Q1/1QP1R2B/2r1qRPN/B7/n3Qbn1/1rbb4/Q3NNr1/2R4r b - - 0 1 illegal: No possible last move, all moves rejected
1q1b1B2/bP1b1Kb1/4N1R1/2nkR2B/B5bb/2Q1r3/R2r1RPN/Qq3n1Q b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Ke2 Kf7 Ke3 Ke6 Kd4 d5 f4 h5 c4 a5 b4 h4 g6 e3 f5+ Kd7 Ke5 e2 c6+ Kc7 g7 e1B f6 e6 c5 d4 f7 a4 Ba3 d3 Nd2 h3 Ne2 h2 Nf4 Na6 Ra2 Ne7 Kf6 e5 g8R e4 Qa1 e3 Rg6 e2 Nf3 d2 Rg1 h1Q Nh2 Bh6 f8R d1B Kf7 Bf2 Re8 e1B Be2 Bg4 Rf1 Bd7 Bh5 Nd5 Re4 Be3 Rf3 Bg5 Rff2 Re8 b6+ Kc8 b7+ Kc7 b5 B1g4 Rc4 Qb8 Re4 Ba5 Bb4 Bh4 Ba3 Qb1 b6+ Kd8 Bb4 Bd4 Ba3 Ne3 Bb4 Nf1 Ba3 Bc8 c7+ Kd7 Ne6 Kc6 Bb4 Kd5 c6 a3 Bf8 Bd7 c8B Nc5 c7 Qa7 b8Q Be3 Rab2 a2 Ba6 Qb7 c8Q Qc7 Qa7 Qb8 b7 Bad8 Bb5 Bd4 Qa3 Ra6 Qh3 Rd6 Rbc2 Be3 Ba4 Bd4 Qac3 a1B Ra2 Bg7 Qf6 Bd4 Qc3 Nd3 Qe1 Ba7 Qa1 Nc5 Qc7 Rb6 Qg3 Rb2 Qgc3 Rc2 Ng5 Re5 Ne6 Rd2 Qec1 Ng3 Qh1 Nf1 Rb4 Re1 Re4 Re3 Re5+
2nB1b2/PR3b2/2N4Q/5NKb/3bB2B/1bRqrb1B/NR1q2P1/1Qr2k1n b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kf3 h5 Kf4 b5 d4 c5 e4 f5 a4 c4 g6 c3 e6+ Kd6 g7 b3 a5 b4 e7 b2 e8Q b3 a6 c2 a7 h4 Na3 b1B Qd3 h3 Qf7 h2 Be3 c1B Be2 b2 Bd2 Be6 Nc2 Na6 Ne3 Rc8 Qg6 Ba2 Qh6 b1B Be1 Ne7 g8B Nc5 Bg4 Bb2 Bh7 Bb3 Kg5 f4 Ra3 f3 Bh3 f2 Ne2 f1B Nc3 Be2 Bh4 Bf3 Na2 Bh5 Rc1 h1Q Rc3 Qe1 Ra4 Qc1 Rb4 Qd2 Rb7 Qd7 Qf1 Nd3 B7f5 B1c2 Qb1 Nf2 Bh7 Rc6 Bg6 Nc8 e5+ Ke7 Bgf5 Bef7 e6 Kd6 Be4 Nh1 e7+ Bfg6 e8R Bcd1 Qc1 Bdf3 Qb1 Rh7 Re5 Re7 Rf5 Rc7 Rf7 Qb5 Rf4 Qbd3 Nf5+ Kd7 d6 Ke6 d5+ Ke5 d7 Bf7 d8B Ba1 Rc2 Bd4 Rb2 Rc1 d6 Re8 d7 Re6 Bc6 Re7 Ba4 Kd5 Bc6+ Kc4 Be4 Re5 Bc6 Re3 Be4 Q3c2 Rg4 Qcd3 Rg3 Q3c2 Bc6 Kd3 Be4+ Ke2 Bc7 Bhg4 d8N Bgh5 Nc6 Qcd3 Bd8 Kf1 Rg4 Bfd1 Rf4+ Kg1 Rf2 Bdf3 Re2 Kf1 Rc2 Qe1 Rc3 Qf2 Rec2 Qfd2 Rb2
R1N2QNK/n3rbN1/Qn3N2/1Bq5/r1Q2bBB/n4P1r/3Pk2r/R2b1b2 b - - 0 1 illegal: No possible last move, all moves rejected
N2n1kb1/2NQ1Rr1/1r3BB1/2bR3B/3Pn3/QP1R1nq1/bB1Nr3/K1n2r2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f4 h5 g4 a5 f6 c5 f7+ Kd7 b3 e5 b6 Ke7 b7 a4 g5 a3 f5 h3 g6 e4 g7 a2 Nc3 h2 Bb2 h4 Be2 h3 Na4 e3 Bh5 e2 Nb6 c4 Nf3 Nf6 g8B c3 Bh7 c2 B7g6 Ra4 Na8 Nc6 b8B c1N B8e5 Qd6 d4 Ra6 Kd2 e1R Kc2 Nd8 Nd2 Ne4 Qg4 Re2 Rd1 h1B Rb1 Be6 f6+ Kd7 Qf5 h2 Qg4 Be7 f8Q Rh7 f7 Rb6 Bf6 Qg3 d6 Rg7 Ra1 Bf5 Re1 Ke6 d7 Bc5 Rd1 Bg2 Rb1 h1R Qh3 Nc6 d8R Rf1 Rd5 Nd8 Re1 Nd3 Rbc1 a1N+ Kb1 Nc2 Rcd1 Nc1 Qg4 Ref2 Re3 Ne1 Ka1 Re2 Rd3 Nf3 Re1 Ba3 Qc5 Bh1 Qa5 Bc5 Qa3 Bg2 Re5+ Kd6 f8N Be6 Rf5 Bg8 Ne6 Bh1 Nec7 Kd7 Be5 Ke7 Bf6+ Kf8 Rd5 Bg2 Qd7 Bh3 Qc6 Bc8 Qd7 Ba6 Re3 Bd3 Rd1 Bb1 Re1 Rh2 Rd3 Ba2 Re2 Nf2 Re6 Ne4 Re7 Re2 Rf7+
1n4n1/R5b1/1n1rNQk1/rB1Q4/P2qr1P1/2Rb1R1r/2BQ1N2/n1K1b1BB b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 b5 e4 h5 d4 c5 Kd2 f5 g6 c4 d6 h4 g7 Kf7 d5 f4 e6+ Kg6 e5 h3 d7 b3 d6 f3 e7 f2 e8R h2 e6 b2 e7 b4 Bg2 f1R Ne2 b3 Nd4 Ra5 Ne6 Re1 Rf1 h1R Rf3 R8h6 Nc3 R1h3 Bh1 Ba6 Ne4 Bb5 Nf2 Re4 Qc2 b1N+ Kd1 b2 Qd2 Qb6 d8Q c3 d7 Bd3 a4 Qc5 Ra3 Qd4 Rb3 Na3 Qb6 b1N d8Q R6h4 Qd5 Rh6 Bb2 c2+ Kc1 Nc4 Rc3 Nba3 Rd8 Ra8 Rd7 Ra5 Qbc6 Nb6 e8B+ Kh7 Ra7 Rf6 Bd7 Kg6 Nc7 Rd6 Ne6 Nf6 g8B Bg7 Nd8 Nbc4 Bge6 Ng8 Qa6 Nb6 Bb5 Nac4 Ba3 Ne3 Bc5 Be2 Kb2 c1B+ Kb1 Nc2 Bf5+ Kf6 Ne6 Bd3 Qc6 Ba3 Qd5 Bb4 Kc1 Na1 Nd1 Qc4 Bg1 Qd4 Nf2 Nc8 Ng5 Rb6 Be8 Be2 Rc2 Rf4 Qe3 Be1 Rc3 Bc4 Bc2 Bd3 Bb5 Kg6 Qe2 Re4 Qd2 Rbe6 Qad6 Nb6 Q6f4 Rc6 Ne6 Rd6 Qf6+
3R3r/bQQ1nnqb/KB1rk1B1/1P2n1Nn/b4RQ1/5P2/5N1N/2bQ1Rr1 b - - 0 1 illegal: No possible last move
Nk3n1R/bNbbBrr1/b1r1q3/1P3QQ1/1RBR3K/P1Q3n1/Q7/1B1n1r2 b - - 0 1 illegal: No proof kernel
b3NN1b/2q3Qr/1rPP1nb1/1Q4R1/6BN/3QR1B1/kr2r2n/Q1n1BnK1 b - - 0 1 illegal: No possible last move
1N2qR2/1nN2N1P/1n1Q4/Prr1r3/2bn1rBR/b4Q2/kN2Qb2/2BbR2K b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 Kf2 c5 Kg2 e5 d4 g5 a4 b5 h4 g4 h6 g3 h5 c4 h7 b3 f6 e4 f5 b4 a5 b2 h6 e3 d6 c3 d5 c2 d7 e2 d6 e1B Bd2 c1R Qf3 b3 Bc3 Ba6 Nd2 b1B Be5 b2 Nh3 Bc2 Qe2 b1R Bb2 Qe8 d8Q Ne7 d7 Bc4 Nf4 Na6 Rh4 Nc8 Nd5 Nb6 Nc7 Bd1 Kh1 Nc5 Bh3 Bf2 Bg4 Nb7 Qb8 Rc3 Bc1 Ba3 d8R Rf8 h8N+ Kg8 Nf7 Rb5 Rb1 Re3 Rc8 Ree5 Rd8 Nd6 Qb7 Rc8 Qbf3 Nb7 Ra1 Bd3 Nc4 g2+ Kh2 g1N Nb2 Bc4 Kh1 Bc2 Bf4 B2b3 Re1 Ba4 Bc1 Bd1 Na6 Rcc5 Nc7 Nh3 Ra8 Ng5 Rc8 Ne6 Rb8 Nd4 Rc8 Qd8 Ra8 Rfe8 h7+ Kf8 Rb8 R8e6 Rc8 Qe8 Nd5 Qd8 Nh8 Re4 f7 Bcb3 Nc7 Ke7 f6+ Kd6 f8N Rf4 f7 Ree5 Nd7 Qe7 Rg8 Qe8 Qfe3 Be6 f8Q+ Kc6 Nf7 Ba2 Ne6 Kd5 Nb8 Bab3 Qh6 Ba2 Rf8 Bab3 Nd3 Kc4 Nb2+ Kb4 Nc7 Bc4 Qe4 Kb3 Q4f3+ Ka2 Qd6
3rn3/PR2r2b/5rP1/NRB3N1/BN1brb1Q/3QQ1q1/R1nK2N1/4nkb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 h5 f6 Kg6 a5 b5 f7 h4 a6 c4 a7 c3 d6 e4 d7 e3 d5 e2 d6 h3 Qa4 h2 Ra2 c2 Qb3 Bg7 f8R Bd4 Kd2 e1B+ Ke2 Nf6 Qe3 b3 Nf3 b2 Nc3 b1N Bg2 b4 Nd5 b3 Nb4 b2 Rf7 Qg8 d8N Rh4 d7 Na3 Nb7 b1R d8Q Bf5 Na5 Ne8 Rb7 Bf2 Ne1 Na6 Kd2 Bg1 Bc6 Nc5 Ng2 Nd3 Ba4 Ne1 Qd5 Rh7 Qc4 Rg7 Qcd3 Rd8 Bb2 Re7 Bc3 Kf7 g6+ Kf6 g7 Bh7 f5 Re4 g5+ Ke5 f6 c1B+ Ke2 Rb3 f7 Nac2 f8N Kf5 Ba1 Kg4 Ne6 Rc3 Bb2 Rc7 Ba3 Re7 g6 Qf8 g8Q Qf4 Nac6 Qg3 Na5 Kh3 Qh8 Bd2 Kd1 Bc1 Qf3 Bf4 Qfe3 Bf2 Rf1 h1R Kd2 Bg1 Qf6 Bh2 Rf2 Rf1 Qh8 Bg1 Ng5+ Kh2 Rb5 Bc7 Rf7 Rf6 Nbc6 Bf4 Bc5 Bf2 Nb4 Kg1 Qa3 Kf1 Qc3 R7e6 Rfb7 Re7 Qa3 Bg1 Qc3 Bg8 Qh4 Bh7 Qd3+
B1Q1r3/1Kn1b2r/3NBN2/Q5R1/1n2RR2/1q2PB2/r1Nk2PB/nr1n2qb b - - 0 1 illegal: No proof kernel
1b1K3N/1R1R1Rr1/5Q2/r2NBbn1/B3N1P1/2n2P1q/2Qqq3/qr1BrNk1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 Kc5 Kf4 g4 a5 b4 e5+ d6 h5 d4+ e3 b6 c6 d5 e4 f3 Kg3 g6 Kf2 b5 e2 b7 e1Q g7 a4 b6 a3 Nd2 h4 Qc2 e3 Bb2 a2 Nh3+ Kg3 Bb5 Kg2 Ba4 e2 Nf2 h3 Rd1 a1Q Nfe4 h2 Nf1 Rh7 Be5 Nf6 g8B Bf5 Rd2 Bh6 d7 Bf4 Kd6 Na6 b8N c5 b7 c4 Nc6 c3 b8R Nc5 Ne7 Ra5 Rb7 Rg7 Kc6 Ne6 d6 Qed1 Nd5 Ng5 Bh7 Qh8 Kc7 Qe1 Bg6 Qh3 Bf7 Qf2 d8N e1R d7 Qe2 Bg6 Rb1 Nf7 Re1 d8Q Bg3 Nf2 Nfe4 Qf6 Rb1 Kd8 Re1 Qb2 c2 Nh8 c1Q Qc2 Nc3 Ne4 Bf4 Rd4 Qcd2 Bge8 Rb1 Bb3 Re1 Bea4 Bg3 Rf7 Rb1 Rb4 Bf4 Rbb7 Bg3 Bd4 Bb8 Be5 Re1 Nfg3 Rb1 Rd1 h1R Nf1 Kg1 Nh2+ Qhf1 Qc1 Qf4 Nc7 Kg2 Rdd7 Qfd2 Nd5 Rg1 Bc2 Kh1 Qb2 Qh3 Bd1 Re1 Nf1 Kg1 Qc2
r4Rr1/Bq1bQ1rN/1R1N1r2/2q2Bn1/3Qq1PP/bB3B2/q4n1k/3N1KR1 b - - 0 1 illegal: No proof kernel
4br1B/1k2rRK1/2rq2B1/4RP2/RbQ1q2n/P1b1B1N1/1r3BN1/2Q1b1nQ b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 g5 Ke4 e5 d4 c5 f4 Kc7 h4 b5 d6+ Kb6 d5 g4 d7 g3 d6 c4 f6 g2 Kf5 b3 Kg6 b2 h6 e4 h5 c3 f7 e3 h7 c2 h6 e2 Be3+ Kb7 Nf3 g1B Nh4 e1B Qc1 b4 Bd3 b3 Nc3 b1Q Ng2 b2 Ne4 Ra7 Ng3 Nc6 Rh5 Nd4 Re5 Ne2 Bf2 Qe7 d8B Bd7 Bdb6 Be8 d7 Bg7 d8Q Qd6+ Qf6 Bh2 Bbe3 Ng1 Qe6 Ne7+ Kg5 Rg8 h8Q Ng6 f8R Nh4 h7 Bb4 Rf6 Rf8 Bg6 Be1 f5 Bb4 Qd1 c1R Qc4 Qe4 Qdf1 Rc2 Qc1 b1R Kh5 Rbb2 Rf7+ Kb8 Kg5 Re7 Kh5 Kb7 Kg5 Bf6+ Kh6 Bg5+ Kg7 Be1 Qf1 Rc6 Qg8 Bf4 h8B Bg5 Qh7 Bc3 Qc4 Bb4 Bd4 Bgd2 Bde3 Bbc3 a3 Be1 Rb1 Rb5 Rb4 Rbb6 Ra4 Rb2 Nh1 Bf4 Ng3 Bb4 Bc5 Bfd2 Bce3 Bdc3 Qh6 Nhf3 Qh2 Nh4 Qh1
1rBR4/B1Rq2N1/2nb4/2P2nNr/1rP1Q3/1N2R2R/B1k3Kb/qb1brQ2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 g4 Kf7 f4 Kf6 Kf2 e5 b4 a5 b6 h5 b7 d5 Be3 e4 Kg2 d4 Ra3 a4 Nf3 d3 Qe1 d2 Rh3 d1B Ba6 Ne7 Nbd2 Qd7 Nb3 Nbc6 Ng5 Rb8 Bg1 e3 c3 Ra8 b8R e2 Rb7 Rb8 Rc7 Rb7 Qf1 e1R Qf3 Rb6 Qe4 Bb7 Re3 Ba8 Bc8 h3+ Kg3 h2 Kg2 h1R Rh3 Kg7 f6+ Kh6 f5 h4 f7 Rb5 f6 Nf5 Qe3 Kg6 Qe4 Bd6 f8Q Rh5 f7 Rb8 b5 Bb7 b6 Ba6 b7 Bd3 Bh2 Bb1 Ra2 a3 Re2 a2 Ree3 a1B Bg3 Ra8 b8R Bb2 Ba6 Kf6 Rd8 Rb8 Bc8 Rb4 Qfe8 Rhf1 f8N Rf4 Qf3 Rb8 Qf1 Rfb4 Nfe6 Bc1 Ng7 Bd2 Rf3 B2f4 Qg6+ Ke5 Re3+ Kd5 Qh7 Bd3 Qg6 Kc4 Qe8 Kb5 Qe4 Ka4 N5e6 Ka3 g5 Kb2 g6 Bb1 Ng5 Bfe5 N7e6 Bf4 g7 Bfe5 g8B Bf4 Qef3 Kc2 Ng7 Bfe5 Nd2 Bf4 Ba2 Bfe5 c4 Bf4 Bf2 Bh2 Bg3 Bf8 Ne8 Be2 Bd6 Be5 Rh1 h3+ Kg1 h2+ Kg2 Rd1 Qf4 R8b5 Rb7 Bg4 Bc7 Bfd6 Q1f3 Rb6 Ra7 Rb8 Nb3 Rc1 Bb6 Rd1 Ng7 Rc1 Rg1 h1Q+ Kf2 Rd1 Rg3 Qe1+ Kg2 Qc3 Qf1 Re1 Rh3 Bd1 Rc7 Qa1 Qh4 Bg3 Ba7 Bh2 Qe4+
2R2K2/r2Q1NR1/q6P/3b1qRq/1QBrB1nP/N1N1b2B/1n1kr3/4Bqr1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kg4 Kd5 Kf5 Kc4 e4+ d3 b4 g5 h4 a5 h6 d5+ e6 a4 b6 g4 e5 g3 b7 a3 b5 a2 b6 g2 Ne2 g1R Bd2 d4 Nec3 Na6 b8R Nf6 b7 Nb4 Be1 Ra7 Ra8 Qe7 b8Q Qc5 Rh3 Rhg8 Rg3 Bb7 e7 Bd5 e8N Ng4 e6 f6 Bh3 d2 e7 d3 Na3+ Kd4 Rg2 Ke3 Nd6 Rg6 Rc1 a1Q e8B Qa5 Nf7 Bc5 Qb5 Rg8 Bd7 Re8 Kg6 f5 Kg7 f4 Be6 f3 Rc8 f2 Qb8 Ree7 Kf8 f1Q Bf5 Qa6 Be4 Qe6 Qb7 Qef5 Qd7 Qa2 Ra1 Bb6 Qb1 d1R Qb3 d2 Qb1 Nh2 Rg7 Nd3 Qb4 Nb2 Rb1 Qa1 Rg5 Qa6 Bf1 Ng4 Bc4 Rc1 Rg7 d1Q Rg5 Qdf3 Rg7 Rd1 Rc1 Bb7 Rc5 Qh5 Rcg5 Rd4 Bf5 Qf1 Nd5+ Kf3 c3 Ba8 Bb3 Ke2 c4 Rd1 c5 Qa2 c6 Qb1 c7 Bf2 Rc5 Rd4 Bc4+ Kd1 Bh7 Re2 Nc3+ Kc1 Bc2 Bd5 Rc6 Be3 Bf5 Nh2 Bh3 Qbf5 c8B Bf3 Bb7 Ng4 Rc8 Bg2 Be4 Bf3 Bed3 Bd5 Bg3 Kd2 Be4 Qe1 Bf2 Qf1 Be1+
r2qQQRr/3QnQKB/2r1bP1B/1n4bb/N2N4/1kN1RP2/b2q4/5r1B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 c5 Ke4 h5 Ke5 a5 b4 e6 g4 h3 d4 a4 f3 h2 g5 h4 b6 a3 b5 h3 d6 c4 b7 a2 d7 c3 d5 c2 b6 Na6 b8Q Be7 b7 Nc7 Qa7 Nb5 b8Q Bb7 d6 Bd5 Bd2 c1R Bg2 Rc6 Ne2 Bb3 Rf1 h1B Nbc3 h2 Na4 Bd5 Rc1 a1R Rc3 Ba2 Rg1 Rc1 Qb3 Rf1 Re3 Bf6+ Kf4 Be7 g6+ Kf6 g7 e5+ Kg4 e4 Qf7+ Ke5 Nec3 Bg5 f6 Ne7 Qab7 Kd4 g8B Bh4 Qf8 Bg5 Bh7 Kc4 Kh5 Kb3 Q7a7 Qc7 Qbe8 Qd8 Re1 e3 Re2 Qc8 d8N Qd7 Re1 e2 Ne6 Qc8 d7 Qd8 Ra1 e1Q Nd4+ Kc4 Bf4 Qd2 Re1 Kb4 Re3 Kc4 Bh3 Bg2 Qb7 h1B Qff7+ Nd5 Kg6 Kb4 Kg7 Ne7 Ne6 Kb3 Qa7 Qc7 d8Q Qb6 Qef8 Qc7 Qde8 Qcd8 B3f5 Bh3 Qad7 B1g2 Nd4+ Ka3 Bd3 Bg4 Bdf5 Bh5 Bh3 Bh4 Bh6 Bg5 B3f5 Bh3 Bd3 Ra1 Bf1 Bhe6 Bg2 Rf1 Bh1 Bh4 Bg5 Beg4 Kh6 Bge6 Bf4 Kb4 Rg8 Ka3 Kg7 Kb4 Bh6 Bg5 Nf5 Kb3 Nd4+
7r/b1b1R2q/1PKPn1qN/2B2b1Q/nrB5/1B1Q1Rn1/5N1b/kQ1N1nQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 Kb4 d4 e5 g4 a5 g5 h5 d6 c5 Kd5 c4 f6 c3 d7 h3 b3 h4 b6 c2 g6 a4 g7 h2 b7 e4 f7 h3 f5 a3 f6 e3 Qf3 a2 Bc4 e2 Be3 e1Q Nc3 Ka3 b4 Kb2 b5 c1B Qh5 Bc5 f8Q Nc6 b8Q Qc7 d8N Ba7 b6 Bf5 f7 Qeg3 Qc5 Qg6 f8Q Qb7 Qc7 Nf6+ Kd6 Ne4+ Kd5 Bd2 Re1 a1B Nf7 Nd8+ Q7c6 Qd7+ Qfd6 Ne6 g8B Re8 Bf2 Bf4 Nh6 Qdh7 Nd1+ Kb1 Qcc7 Nc3+ Kc6 Na4 d5 Bae5 Re3 Re7 Rf3 Ka1 Qe3 Rf7 Qdc5 Rf8 Qd3 Re8 Qc8 Bc7 d6 Re7 Ne2 Bg3 Re1 h1N Ng1 h2 Nh3 Bf4 Be3 Ng3 Nhf2 h1N Bb3 Nf1 Qcc2 Re8 Bc5 Re7 Qd7 Re8 Qg7+ Be5 Bf7 Ref8 Qg8 Bh2 Re4 Nhg3 Re2 Ng7 Bfc4 Re8 Ree3 Re4 Re2 Rh4 Re7 Ne6 Qg7+ Qf6 Qgg4 Qfg6 Qgg5 Ne4 Qg1 Neg3 Bb5 Rb4 Ba6 Bg4 Bac4 Bf5 Qb1#
5r1B/QrrRP1Pq/1b2Bn1q/2k1N2r/nn3Q2/1K2Bb1R/4NQ1N/3n2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Ke7 e4 Kd6 b4 c5 d4 a5 Kd2 h5 Kc2 f5 e5+ Kd7 e6+ Kd6 g6 a4 b6 h4 b7 c4 e7 a3 g7 f3 g5 a2 g6 h3 b5 f2 b6 c3 Qd2 f4 Bc4 f1N Kb3 c2 Ne2 Nd7 b8B+ Qc7 b7 Ngf6 g8Q f3 Qf7 h2 Qh6 f2 Be3 c1R Nd2 Ra5 Nf3 Bg7 Qh4 Rc2 Rd1 Nb6 Rd3 Rh5 Qf4+ Re5 Ba7 Na4 b8Q Bg4 Bb6 Rc5 Qa7 Qc6 Ba5 Rc1 Bc3 Rb1+ Bb2 Qa6 Rd2 Rc7 Rd1 Kd7 d6 Kc6 d7 Rh5 d8B Bh8 Be6 a1N+ Ka2 Nc2 d5+ Kb5 d6 Nb4+ Kb3 Qb6 Rd4 Kc5 d7 Bg7 Ne5 Bf3 Ng4 Rb7 Bc7 Rc1 d8N Bh6 Nc6 Rc2 Bd2 Ne3 Rd7 f1R Nce5 Nd1 Qf8 Bg5 Bd8 Bh4 Ba1 Bf2 Be3+ Kb5 Bc7 Qa6 Bcb6 Rcc7 Rg1 h1Q Rg3 Qh4 Bbd4 Qc6 Nh2 Qe4 Qf7 Qg5 Rh3 Qh6 Qf5 Qh4 Qf4 Qh7 Bc5 Qg5 Bcd4 Qgh6 Bac3 Bh4 Bg1 Bf2 Bd2 Be3 Ba1 Bb6 Bde3 Ng4 Q7f6 Rf2 Qh4 Nf6 Bb2 Rf1 Qf2 Ng8 Q2g3 Bd4 Qfh4 Bc6 Nef3 Bb6 Bh8 Rf2 Ne5 Rf8 g7 Nf6 Qf2 Bf3 Nd3 Kc6 Qhg3 Kb5 Qf4 Kc6 Ne5+ Kb5 Rd4 Kc5 Rd7+
3n2bQ/B4Q1r/1bBq1B2/q3n3/k1rRB2N/q4RQK/PpP2R2/r4nN1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 h4 b5 f4 g5 Kf2 d5 Kg2 Kd7 f6 Kc6 h6 e5 h7 e4 f7 g4 h5 d4 f5 b3 h6 d3 f6 b2 Bf4 b4 Bg5 Kb5 c6 g3 c7 b3 Qh5 e3 Ne2 d2 Ng1+ e2 Bf4+ Ka4 Rh3 d1N Qe5 e1Q Bd3 Bc5 f8Q Nd7 f7 Bb6 Nd2 b1Q Be3 Qc1 Ndf3 Ne7 Be4 Nc6 Nh4 Qa5 Bc5 Bb7 c8B Qa3 Rh2 b2 Kh3 g2+ Qg3 Ba6 Bb7 Ne3 Rd1 Bc4 Rd4 Nf1 Qg7 Rc8 f8R Qe7 Rf3 Nde5 Qf7 Nd8 Bbd5 Qd6 Ba8 Re8 h8B Re7 h7 Ra7 Bf6 Rcc7 Ne2 g1R h8Q Rc8 Rhf2 Rc6 Qff8 Rh7 Qf7 Rc7 Rd2 Rc6 Be3 Bb3 Rd4+ Rc4 Bad5 Nd2 Bb7 Ra1 Ng1 Nf1 Rd5 Bc7 Ba7 Bb6 Rd4 Rb4 Qh5 Bg8 Qf7 Rc4 Bbc6+
1nQ1Bqkq/2rq1BB1/3Q2N1/2b4N/7K/1RPB2Pn/1nR3p1/1br1b1RN b - - 0 1 illegal: No possible last move, all moves rejected
3K4/B7/Qr2RB2/1nNN1B2/b5nN/PPp1r2n/r1q3Q1/bkbR1QBq b - - 0 1 illegal: No proof kernel
B1N2q1N/r2n3K/R1Qq4/b2B2bn/N4p2/Pk2rP2/2rRQ1n1/BB2b2Q b - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b6 d4 g4 e5 g3 d6 Bd7 d5 a5 b4 axb4 e6 Bh6 hxg3 Kf8 exd7 Kg7 g4 Kg6 g5 Bf8 Ke2 Kf5 Ke3 Ke5 g4 f5 a3 c5 g6 h5 f3 c4 g7 h4 g5 b5 g6 b3 Nd2 b2 Qe2 b1N Ra2 h3 Bb2+ c3 Ne4 b4 Ba1 b3 Rd2 Nf6 g8B h2 g7 b2 Bh7 c2 g8B c1B Be6 Qc7 d8N Nc3 d7 b1R d6 Rb2 Bd5 Ra7 Ba8 Rc2 Nf7+ Ke6 Kf4 Nh5+ Kg5 Nd1 Kg6 Ne3 d8Q Ng2 d7 Qd6 Qa5 f4 d8Q Bh6 Qdb6 Re8 Qbb5 Nd7 Nh8 Bg5 Qc6 Bb2 Qaa6 Bc3 Qe1 Bb4 Ne2 Ba5 Rg1 h1Q N2c3 Qh4 Na4 Qf2 Bd3 Qc5 Qh4 Qb4 Qh1 Qb8 Qc3 Qc8 Rb1 Qd8 Rb7 Kd5+ Qf6 e5 Rb6+ Qc6 Nd6 e4 Nc8 e3 Qh4 e2 Qh1 e1B Qb5+ Nc5 Ra6 Re3 Qb2 Qe7 Be4+ Kc4 Qe6+ Qd5 Qc6 Qed8 Qe5 Kb3 Qee8 Nd7 Qe5 Qc4 Qeb5+ Qb4 Qe2 Ng3 Kg7 Qd6 Bhf5 Q8f8+ Kh7 Nh5 Bg6 Rb2 Bb1 Ra2 Bge4 Rc2 Bd5+
k1n5/Q1K1BQrq/2nNR3/1r2QN2/1Q2Pb1B/2p2RP1/B1b3rq/2nb2N1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 e4 a5 d4 h5 b4 c5 d6 c4 d5 a4 g6 h4 g3 c3 b6 a3 g7 h3 b5 h2 b7 a2 b6 Rh3 Bc4 Qc7 Qf1 Ra7 Ba3 Nc6 b8Q Rh5 b7 Nge7 g8N Bh6 Nd2 Bg5 Rd1 a1N Ba2 Nb3 Nh6 Nc1 Nc4 Kd8 Rd3 Qd7 Kf2 f3 Bc5 f4 Nf5 Qc7 d7 Bh6 Ncd6 Bg5 Ke1 f2+ Kd1 f3 Kc2 Bd2 Qa8 Bh6 b8Q Bf4 Qb4 Qb7 Re3 Kc7 Qfc4 f1R d8B+ Kd7 Qd4 f2 Rf3 Re1 Qe5 f1B Qb8 Qc7 Q8b6 Rb7 Qa7 Re2+ Kb1 Rg2 Ka1 Ng6 Bh4 Nge7 Kb1 Be2 Kc2 Rh7 Ne3 Rg7 Nef5 Nd3 Kb3 Rb5 Kc4 Bd1 Ne8 Kd8 d6 Ba6 d7 Nc1 Ned6 Qb7 Bb3 Kc7 Ba2 Nc8 Kd5 Rb6 Ke6 Bd3 Kd5 Rb5 Ke6 N6e7 d8Q+ Kc6 Qg8 B3c2 Qf7 Kc7 Qb6+ Kb8 Qc7+ Ka8 Kd7 Qa6 Qb6 Nc6 Kc7 Qa5 Nc4 Qa3 Bce7 Qb2 Ncd6 Qa1 Ne2 Qb2 Rhf1 h1Q Ng1 Qh2 R1f2 Qb3 Rd2 Qe6 Rd4 Qh6 Rc4 Nd4 Rc6 Qh7 Ne8 Qg6 Re6 Qh7 Ned6 Nc6 Qa7+
1Q1Q1r2/1NB2R1B/1b1K1R2/N1r1Rqnb/p5n1/1PR1r1P1/qB2k3/4n1Nb b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 e5+ Ke4 a5 f4 h5 g3 a4 b6 c4 d6 h3 Kd5 c3 d7 h4 b7 c2 b3 h2 Qg4 h3 Bb2 c1R Ra2 e4 Qd1 e3 Nd2 e2 Nc4 e1N Na5 Bc5 Bd3 Nc6 b8Q Qf8 d8N Ne5 Ndb7 Nh6 Ra1 Rc4 Rc1 Nhg4 Rc3 Bb6 Qd2 Qf7+ Kd6 N5f3 d5 Ng5 Bb1 Rf8 Be4 Kg7 f6+ Kh6 Bh7 Kh5 f5 Rc5 Qd1 Be6 Qd3 Qg6 f7 Re8 f8R Bf7+ f6 Re3 Re8 Qf5 Re5 Be8 Qc7 Bg6 f7 Rg8 f8R Rh8 Rf6 Rf8 Nf3 Bf7 Rf1 h1Q Ng1 h2 Qd8 Qg2 Qb5 h1B Qbe8 Qgc2 Qb8 Qb1 Qed8 Qa2 Rf4 Nh6 Rf3 Kg4 Rf2 Bh5 Rf7 Qe4 R2f6 Qc2 Ke7 Qd3 d6 Qdb1 d7 Qf5 Nh3 Kf3 Kd6 Ke2 Ng1+ Kf2 Qe8 Kf1 d8B Ng4 Bc7 Kf2 Qed8 Kf1 Nh3 Ke2 Ng1+
5q2/1Br2Nq1/2rN3n/2PRnr1b/2BQRp1Q/1K2Bn2/R2P4/b2kqN1B b - - 0 1 illegal: No proof kernel
1qkN1K2/Q2q2n1/2NrB3/rbP1n3/Pb5p/3Q2N1/1RR1b1qR/2BrR1Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 h5 Kd3 d5 Kd4 Kd7 Ke5 b5 g4 b3 c4 b2 a4 d4 f4 d3 f6 b4 g6 h4 f7 d2 c6+ Kc7 g7 e6 g5 b3 f5 Nf6 g8Q Qe8 g6 Rh7 g7 Ba3 f8N Rh8 Nc3 b1B Nf3 b2 Nd4 Qg6 Qf7+ Be7 g8Q Nh5 f6 Bd3 Ne4 b1Q Bh3 Rh6 Rh2 Be2 Ng3 Ng7 Qc2 d1R Qd3 Bd7 c5 Kc8 c7 Bb5 Nc6 Bd8 Kd6 Nd7 Qe7 e5 Be6 e4 f7 e3 Ra2 Ra6 Rb2 Ra5 Rc2 Kb7 c8R Qe4 Ra8 Qg2 Ra7+ Kc8 Rb7 Bc4 Rbb2 Bb5 Qh7 Rg6 Qg5 Bf6 Qg4 Bc3 Ke7 Bb4 Qg5 Bf1 Qg4 e2 Qgd4 e1Q Qg1 Qee2 Qc3 Qd2 Bf5 Ne8 Rb3 Bbc4 Ne6 Bfe2 f8R Ba3 Ned8 Rh6 Qf7 Ng7 Qf3 Qd4 Qd3 Qg4 Rb6 Rd6 Rb7 Q4h3 Bg4 Qb6 Bf5 Qa7 Rbb2 Bb4 Bg4 Qb8 Bf5 Ne6 Ke8 Ne5 Qa7 Bb5 Bg4 Nd7 Rf1 Ne5 Bf5 Qg4 Re1 Qg7 Bh3 Qg4 Ke7 Ng7 Kf8 Qd7 Be6
1Rn2Nb1/n1R4k/N1b1qQqB/1NP1PBQ1/q2r1B2/8/p1n2KN1/br1Q4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e6 Qf6 Qd2 g5 b4 d5 h4 a5 c4 g4 e4 g3 b6 g2 h6 a4 b5 d3 h5 d4 h7 a3 e7 a2 b7 Nc6 b8B Ra4 h6 Be6 b6 Na7 b7 Bg7 Nh3 g1Q Nf4 Qgg6 Na3 Bd7 Qe2 Qe6 Bh3 d2+ Kf1 d1N c5 f6 Rb1 Kf7 e8N d3 Be5 d2 Ng2 Qh5 b8N Kg6 Qe1 f5 Nf6 f4 Na6 Bc6 Rb8 Ne3+ Kf2 d1Q Nb5 Ne7 Qf1 Rd8 h8Q Rb4 h7 Nec8 Qg8 Qa4 h8Q Nc2 Qd1 Rb1 Bg4 Qg5 Rh7 Rd6 Qd8 Qh6 Qhf8 Bh8 Rc7 Bg7 Ng8 Kh7 Bf5+ Qhg6 Be3 Rd7 Bd6 Bc3 e5 Bd4 Qg5 Ba1 Be7 Rd4 Qd8 Qd5 Bf8+ Qf7 Bh6 f3 Kg1 Qe7 Bf4 f2+ Kf1 Qf7 Ke2 f1B+ Kf2 Bc4 Qde7 Kh8 Nf6 Qe8 Qd6 Bg8 Nd7 Kh7 Qdf6 Qe6 Nf8#
R2n1B2/1bRqr3/Q1QrN3/Pq1n3R/1k1N1Q1b/1BR1Bq1P/3K2pn/1r6 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kd7 f4 Kd6 a4 e5 h3 c5 f6 g5 h6 b5 f5 c4 f7 c3 h7 e4 a5 b3 f6 g4 Bd2 b4 Qc1 c2 Ne2 g3 Nf4 g2 Ne6 Ra6 Na3 b2 Bc4 Be7 f8Q b1Q f7 b3 Ra2 e3 Nb5+ Kd7 d6 Kc6 d7 b2 Ra3 e2 Rg1 Nf6 Be3 Bb7 Kd2 e1N Rh1 Rg8 h8R Rg7 Rh5 Qe8 d8R Nf3+ Kd3 Nh2 Kd2 Rb6 Rb3 Rh7 Qh6 Rg7 Qf4 Ra6 f8B Rf7 Qcf1 c1Q+ Ke2 Qe4 Rd3 b1R Bb3 Qc4 Kd2 Qed5 Q1f3 Rh7 Rc1 Qc5 Qf1 Qf3 Rc4 Rb6 Rdc3 Rf7 Na3 Ra6 Nc2 Kb5 d5 Nc6 d6 Nd5 d7 Bh4 Ra8 Re7 d8Q Qd7 Qc8 Nd8 Qd3 Qb4 Rc6+ Qc4 Ncd4+ Kb4 Qf1 Rb6 Qcc7 Qc5 Qa6 Qb5 R6c5 Rd6 Qcb6 Rg1 Rc7 Rb1 Qc6
b2R2rb/QN6/2q2b1P/3n2R1/B2Nkr1r/4q1Q1/1PRBQ1qp/1Rn1K2N b - - 0 1 illegal: No proof kernel
1n1RR3/k3BN2/1bB1R2p/1NrPKQ1r/2q1b1R1/1qnqrP2/N5Q1/4nQ2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 g4 Kb7 b4 a5 d4 e5 f3 a4 b6 a3 f6 h3 g5 a2 f7 h6 b5 h2 d6 c4 d7 c3 d5 c2 g6 Ra6 g7 Qe7 d8N+ Ka8 b7+ Ka7 Ne2 Qe6 Ba3 c1Q Nbc3 Rc6 Be7 Rc5 Nd4 Qb6 Rg1 h1R Rg4 Rh5 Qe2 Qd2 Re1 a1Q Na2 Qac3 Bh3 Qc4 Qf1 Qd1 Re2 Qa6 Re3 Qdb3 Re1 Nd7 b8R Qaa3 Rb6 Nb8 Re6 Rh7 Bh4 Bd6 f8Q Bc7 Be7 Bb6 Qf5 Qa6 Nf7 Bd7 Qg5 Nf6+ Kf5 e4 g8Q e3 Ke5 e2 Qf5 Ne4 Qgg5 Ba5 Qgg6 Nc3 b6+ Ka8 b7+ Ka7 Qg8 Bb6 Qgg5 Qd3 Qd2 Qac4 Qc2 Na6 b8R Bb5 Rd8 Nb8 Ra1 e1N Qcg2 Ba4 Rc1 Rh8 Rc2 Re8 Re2 Qb2 Re3 Bc2 Ree4 Qbb3 Re2 Qd1 Re3 Be4 Nb5+ Ka6 Re2 Qdd3 Rf6 Nd1 Kf4 Qcc2 Bf8 Rh4 Qe6 Rh5 Rg8 Qcc4 Bf5 Nc3 Rg4 Kb7 Qe5 Re7 Bd7 Bg6+ Qe4 Qcd4 Bc6+ Ka6 Rfd6 Ree5 Re8 Qdb4 Be7 Q4c4 Rdd8 Bh7 Nd4 Ka7 Qg6 Reg5 Re6 Re5 Qg5 Re2 Qf6 Be4 Qf5 Re3 Ke5 Rh3 Rgg6 Rh1 Rg4 Rh5 Nb5+
1nb2Rnk/N2q1q1B/2NQQ1P1/1p2K2b/3B3b/2r2P1R/2q1RN2/1rR1Q2r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 Kg7 Kd4 c5+ Ke5 h5 d4 e6 a4 h4 g4 c4 f3 b3 f6+ Kh7 f7 h3 a5 b6 g6+ Kg7 d6 h2 d7 c3 g5 c2 d5 b2 d6 Rh5 a6 Nh6 a7 Rh4 Na3 b1B Be3 c1R Bd4 Ng8 Bd3 Kh8 Nh3 Rc3 Qe1 Be7 f8R Qc7 d8N Qd7 Nc6 b5 Nc4 Bd8 Nb6 Qf7 d7 Bc2 Rg1 h1Q Ra2 Qg2 Nf2 Rh1 Rf1 Be7 d8Q Qh3 Qd6 Qh2+ Ke4+ e5 Rb2 Bb3 Re2 Bbe6 Rg1 Bg4 Rg3 Bf6 Rh3+ Bh5 Bb1 Qd7 Kd5 e4 g7+ Kh7 Bd3 Qf4 Bc2 Bd8 Bb1 Qff7+ Ke5 Be7 Rc2 e3 Rc1+ Qg6 Be4 e2 Bb1 Qc2 Re8 Nf6 g8R Bd8 Rgf8 Ng8 Re7+ Kh8 Ree8 Qb3 Bh7 Qbf7 g6 Bh4 Qe6 Ba6 Nc8 Bb7 Qd2 e1Q+ Qe3 Qd1 Qe2 Qc2 Qe1 Na6 Qd6 Rb8 a8Q Rb3 Ra1 Rb1 N8a7 Rc8 Qab8 Rc7 Qe6 Bc8 Qb6 Nb8 Qc5 Rb2 Qcd6 Rb3 Rc1 Rb1 Nd8 Rc3 Ndc6 Qfe7 Rf4 Qf7 Rf8 Qde7 Re4 Qd7 Re2
b1b1nqB1/1R4Nn/q3rP1K/q2Q4/2nbNQrP/1pQ5/RB2k3/BRR5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 a4 c5 h4 g5+ Kg4 Ke5 f4+ Ke4 d4 e5 a5 b3 a6 b2 h6 b4 Kh5 b3 d6 g4 d5 c4 a7 c3 d7 g3 d6 c2 f6 g2 f7 Bg7 f8Q Na6 h7 Nc7 f5 Ne8 Nf3 g1Q Qd2 Qgb6 Qc3 Qa6 Nd4 Ngf6+ Kg5 Rg8 h8B Qe7 d8R Nh7+ Kg6 Rb8 a8R Rb6 Bc4 Bf6+ Kh5 Rg4 d7 Re6 Nd2+ Kf4 Rb1 e4 Rd1 e3 Kh6 e2 Ra7 e1N Rb7 Ng2 Ne4+ Ne3 Qf7 Qf8+ Bg7 Rb6 Ne6+ Kf3 Rh1 Bd4 Rg1 Qc5 Bf6 Qca5 Ng7 Re6 Qf8 Re7 Bg8 Re6 Qd6 Ke2 Qf4 Nc4 Rd1 Nc7 Rf8 Ne8 d8Q Ba7 Qd5 Bd4 Ra1 b1B Bb2 c1Q Ra2 Qd2 Rc1 Bc2 Rb1 Qc1 Ba1 Qca3 Rff7 Qf8 Rfc7 Nb2 Qcg3 Bd3 Rcc1 Bb5 Qc3 Bc6 Ra3 Nc4 Bb2 Re5 Ra2 Re7 Be5 Re6+ f6 Bf2 Re7 Ba8 Rb7 Bd4 Ba1+ Nb2 Bd6 Qd3 Ba3 Qda6 Nd2 Nc4 B3b2 Rd6 Ne4 Rb6 Ng5 Re6 Ne4
1N4KB/1nQ3bB/1q2PRNp/1q5k/Q1Rrr3/nBPrb1Qb/8/3qR2Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 f5 Kd3 Kf7 Kc4 Kg6 Kd5 a5 g4 h6 e4 d3 b4 d6 b6 a4 b7 f4 b5 d2 b6 f3 e6 f2 e7 a3 e8Q+ Kh7 e5 a2 g6+ Kg7 g5 Na6 b8R Rh7 b7 Bd7 Bd3 f1Q Nc3 Qb6 Bb2 Qf5 Rh4 Qff2 Nh3 Qf4 Nb5 Qf1 Na7 Nc5 Nc6 Ra3 Nf4 Bh3 Rc1 Qe2 Qh1 a1B Re1 d1Q Qd7+ Be7 Rf8 Rh8 b8Q Nb7 Rf5 Nf6+ Ke6 d5 Qbc7 Ng4 Rf6 d4 Bc4 d3 Bb3 d2 Bc3 Qbf2 Nb8 Re8 Qa4 Ne3+ Rg4 Qb5 Bb2 Kg8 g7 Kh7 Kf7 Bc5 Ng6 Nc4 Rgf4 Be3 e6 Rd8 Be5 Rd3 Rh4 Bad4 c3 Ra1 Re4 Na3 Ref4 Bb6 Rc4 Bbd4 Ke7 Rb1 g8B+ Kg7 Bh7 Rb2 Ba2 Rb4 Bb3 Qb1 Nh8 d1R g6 Bd2 Rc6 Rg3 Rf8+ Qf6+ Kd7 Qb6 Rc5 Qc2 Rc6 Re3 Rc5 Re4 Rc6 Bf4 Rc5 Bde3+ Ke8+ Rd7 Bd4 Be5 Rc6 Qg5 Rf4 Bf5 Rff1 Kf6 Kf8 Qd1 g7 Qgh5 Rf2 Kg5 Rf3 Bh3 g8Q+ Kh4 Qgg2 Qg5 Ng6+ Kh5 Kg8 Bh8 Qgg3 Qgb5 Be5 Rd3 Rc5 Rbd4 Rc4 Bg7 Rf7 Bf8 Bh8 Bg7 Rf6
N1BR4/b1n1R1q1/n1N1p1q1/2P3r1/1R1P2Qn/2b4r/k1QB2NB/2Kb1qR1 b - - 0 1 illegal: No proof kernel
1qbb4/N1qb1rk1/2p1n3/r1q1Q3/rN1B3n/2R1PRKP/1N2Q1BB/R5N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 g5 d4 f5 b4 Kf7 h3 a5 e3 g4 b6 a4 b5 f3 h6 f4 d6 a3 d7 a2 h7 Nh6 d5 Nc6 b7 Nd4 b8R Be7 d6 Ra5 b6 Nhf5 b7 Nh4 Bb2 Ne6 Nd2 Rf8 h8Q Bf6 Qh5+ Kg7 Bg2 Rf7 Bd4 Qf8 Rc1 a1R d8N R1a4 d7 Qc5 Qe2 g3+ Ke1 Rb5 Qe5 Rba5 Nc4 f2+ Kf1 Ra2 Nc6 R2a4 d8N Bd7 Qb2 Bc8 Ke2 f1B+ Ke1 f3 Qe2 Bd7 Nb2 Bc8 Na7 f2+ Kd1 Bd7 Ndc6 Bc8 Nb4 c6 Q2h5 Bd3 Rc3 Bf5 Qe2 f1Q+ Kd2 Bd7 Rf8 Qf4 Ke1 Bg4 b8B Bc8 Bf3 g2 Kf2 Bd7 Qe4 Qc7 Qe5 Kh6 Kg3 Bd8 Rg8 Bc8 Rg6+ Kh7 Rf6 Kh8 Be4 Kg7 Nf3 Bd7 Ra1 g1Q+ Qg2 Qb1 Ng1 Nf4 Qe2 Bc8 Bh1 Bgd7 Bg2 Ne6 Kg4 Qc4 Na2 Nf5 Qd5 Ba6 Nd1 Qcb7 Bh2 Qc7 Qe5 Qbb8 Nb2 Bac8 Nb4 Nh4 Kg3 Qc5 Rf3+
qQR2nRq/R1r5/q1p5/b1KPRBr1/b2NQ3/7P/1kN2n1Q/n4rBN b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 d6 Kf7 Ke2 Kf6 Ke3 Ke5 b4 g5 f6 a5 b6 g3 b7 g4 f7 g2 h3 g3 d7 a4 b5 a3 b6 a2 Qe2 Nh6 Na3 Rh7 f4+ Kd5 d4 e5 f5 e4 f6 Bb4 f8Q Ra5 Qe7 Qh8 d8R+ Nd7 b8R c6 f7 Ba6 f8N Bb5 b7 Ng4+ Kf4 e3 Rbc8 Bc3 b8Q Bd2 Qf2 e2+ Kf3 e1R Ne6 Bb4 Ne2 g1Q Be3 g2 Rg8 Nf8 Ng3 Rb1 Qh4 Rc7 Bd3 Qf1 Bh7 g1Q Nc2 Kc4 Ke4 Kb3 Qh2 Kb2 d5 Ra3 Ba7 Qb6 Qe7 Qb7 Bf5 Qa8 Rg1 Be1 Nh1 Rg3 Rg2 Bc3 Re2 Bb4 Bg1 Nf2+ Kf4 Rg7 Ke5 Re1 Kd4 Rg5+ Ng7 Bc3+ Kc5 Rc1 Re4 Qe2 Ne6 Rf1 Ned4 Bd2 Re1 Qd3 R1e3 a1N Qee5 Qe2 Ra3 Qd3 Ra7 Ba5 Qef4 Qe2 Re5 Qd3 Nb4 Ba4 Qe4 Qa6 Nbc2+
2BR3B/nbbn1BR1/1PQ4K/1P2k3/3Qb2Q/N1rqp3/n1qQN3/r2R3q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 h5+ Kg5 c5 d4 e5+ f6 a5 f4 h3 g4 c4 b4 e4 f5 h4 b6 h2 b5 e3 Qd2 h3 Na3 c3 Bb2 a4 Rd1 c2 Ne2 c1Q Rg1 Ne7 f7 h1N f6 h2 Bh3 Bg7 f8R Qc2 f7 Qd7 Rd8 Nf2 f8Q h1B Qe8 Be5 Rg3 Rg8+ Kh6 Nec6 g5 Be4 g6 Bb7 g7 Nd3 Bg4 Rf8 g8B Na7 Bf7 Nb4 Bh3 Na2 Rg7 Bg3 Ba1 Bf5 Qe4 Re8 Qh4 Be4 Qc3 Re5 Bhe6 Rg5 Qc6+ Ke7 Rc8 Kf6 Nc4 a3 d6 Nb4 d5+ Qb2 Re1 a2 Rgg8 Qd8 d7 Bc7 d6 Qc3 Bb2 a1Q Rg1 Qf1 Bh3 Qf3 Rd1 Qh1 Qe1 Re5 Qd2 Qc2 Rg4 Kf5 Bc3 Rd5 Bh8 Rd3 Rg7+ Kf6 Na3 Rc3 Nc4 N8a6 Rb8 Nc5 Rc8 Qe1 Rb8 Nc8 Bhe6 Ra2 Na3 Qh1+ Bh3 Ra1 Ra8 Qe7 d8Q Na7 d7+ Ke5 Rc8 Na2 Rb8 Qg2 Bhe6 Qd6 Qh4 Qd4 d8Q Qh1 Qdd7 Qdd3 Rd8 Qc4 Q7d3 Qd5 Bc8 Nd7 Qdc4 Qdd3 Qd4+
r1Bb2BB/2R1k2q/P7/1Q3nbr/1nbp4/QR1R3n/QPrq1N2/3N1B1K b - - 0 1 illegal: No proof kernel
8/B1kRQr1R/p4nKP/2brb3/rn2BQB1/1Q1q3N/N1PNqB1q/3b4 b - - 0 1 illegal: No possible last move, all moves rejected
n3Nn2/R5nP/4BRb1/Q1q1bN1B/1Q5k/B1R1pb1B/r1P4q/2KQrq2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 Kf6 f4 d5 h4 b5 c6 e5 c7 g5 a5 b3 h6 d4 a6 e4 h7 b2 a7 b4 h5 g4 h6 g3 Be2 g2 Bf3 b3 Rh4 d3 Nc3 b1Q Nb5 b2 Ne2 g1Q Nd6 Ne7 Bh5 Nd7 Rh3 Qc5 Nd4 Bg7 Rg3 Rf8 h8Q Re8 h7 Nf8 Rf3 Be6 c8B Bf7 Be6 Qdc7 Qg8 Bg6 Ra5 Rab8 a8B Qa1 Bb7 Ra8 Bbc8 Bh8 Ra7 b1N+ Ke3 d2 Ba3 Nc3 Bcd7 Bf7 Qgg1 Bg6 Qge1 Ncd5+ Ke2 Qc8 Rc3 Nc7 Ke3 Qb8 Bc8 Kg7 f6+ Kh6 f7 Be5 f5 Kg5 f6 Nf5+ Ke2 Re7 Ne8 Ng7 Bh3 Qc1 Bce6 Qa1 Qb1 d1B+ Kd2 Bg4 Kc1 Bf3 Qd2+ Kh4 Qd1 Qa2 Qb4 Qac4 Qa5 Qf1 Bc4 Nd7 f8Q Re6 Qd6 Nf8 f7 Re7 Ra6 Ra7 Bce6 Na8 Qdb6 e3 Qb3 Reb7 Qc4 Rb2 Qcb4 Rb7 Ra7 Ra2 Bb3 Bf6 Bbe6 Qh2 Nc7 Be5 Ne8 Nd7 f8R Rb5 Rf6 Nf8 Qba4 Rbb2 Q4b4 Rb3 Rc4 Rd3 Rc3 Rd2 Rff7 Re2 Rf6 Re1 Nf5+
qQ2nRKQ/4BR1P/2N1R3/n1B2k2/R1Pq1bp1/2r2B1b/r1nrbQ2/6N1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 g5 Kd5 a5 b4 e5 h4 a4 f4 d3 c4 d2 h6 d6 h7 a3 b6 g4 b7 a2 h5 e4 h6 e3 b5 e2 b6 e1N Qe2 d1R+ Nd2 Bg7 Qf2 Ra3 Bg2 Nc6 b8Q Rf3 b7 Bf8 Bb2+ Rc3 Bf3 Nd3 Nb3 Ne1+ Nd4 Nc2 Ba3 Rd2 Bc5 Na5 Rh5 Kf7 f6 Kg6 f7 Kf6 Re1 a1Q f5 Qb6 Rh1 Qa6 Re4 Qa8 Re6+ Kg5 f6 Bg7 Ke4 d5+ Ke5 Bd7 f8R Bc6 Rf7 Bf8 Re8 Bd6+ Ke6 Bf4 Qc8 Qd1 b8Q Bb7 Nc6 d4 Rh2 d3 Rh5+ Kg6 Re5 Qa1 Re1 Qb2 Ra1 Qb6 Ra4 Kg5 Kd7 Kf5 Re6 Qb2 Ke8 Qb6 Kf8 Qd8+ Kg7 Qd4 Ne5 Bd5 Nc6 Be4 Bd1 Bg2 Bf3 Bh3 Qe8 Ne7 Qec8 Nd5 Qe8 Rf8 h8B Nc7 Qec8 Rd8 h7 Ne8+ Kg8 Rd6 Rc7 Re2 f7 d2 Bf6 d1B f8R Rd2 Rd7 Be2 Rdf7 Rd7 Qd8 Ra7 Kh8 Rb7 Rg8 Nc7 Qf8 Rbb3 Qg7 Rb7 Rgf8 Ne8 Kg8 Rb2 Qh8 Ra2 Bfe7+
5r2/1QN1Q2P/1Bq3p1/1BQ2n2/2bP2rb/1Q1n4/R2Nbqk1/KRnr2NR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 Ke7 e4 Kf6 h4 Ke5 h6 a5 h7 c5 b6 f5 b7 c4 b5 g6 b6 c3 d6 f3 h5 Kf4 d4+ Kg3 d7 a4 e5 f4 h6 c2 Kd2 a3 Kc3 f2 e6 f3 e7 a2 Kb2 Na6 e8N Be7 b8Q+ Qc7 d8R Bg4 b7 Bh4 Qa7 Ne7 b8Q Nc5 Bd2 c1N Qbb7 Nf5 Rb8 Qc6 Bb5 f1B Qb3 Kg2 Ba5 f2 Nc7 Bc4 Bb6 f1Q Nd2 Bge2 Qa5 Re8 h8Q Qf2 h7 Re4 Qe5 Rg4 Rb1 a1R Qe7 Rg3 Rg8 Rf8 Qaa3 Rg4 Rh8 Rf6 Ra8 Rf8 Qab4 Ra4 Q4a3 N5d3+ Ka1 Rb4 Qd1 Rb3 Qac5 Rc3 Qb3 Rc2 Ndf3 Rd2 Ra2 Rd1 Nd2
2Bn3k/N1BrQn1P/1bP5/pqB2Qq1/2N3Qr/R1n2bK1/q4QR1/r1R5 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 d5 Kf2 g5 b4 Kg7 c4 a5 f6+ Kh7 h6 e5 h5 e4 b6 e3+ Kg3 g4 b5 e2 f7 e1N f5 d3 b7 d4 f6 d2 c5 d3 c6 Qd5 b6 Bd7 Na3 Qa2 Nc4 Ng2 Nf3 Ne3 Ba3 Nd5 Bh3 Ra7 Nd4 Nc3 Bc5 Na6 b8Q Nc7 b7 Ne6 Qf4 Nd8 b8B Be8 Qdf1 d1Q Bc7 d2 Q1f2 Qf1 Nb5 d1R Rg1 Be7 f8Q Bf7 Rb1 Bd5 f7 Bf3 Rc1 Bg5 Q4d4 Be3 Qe7 Qfe2 Rg2 Rg1 Be5 Rd7 Bc7 Qeb2 Na7 Qb5 Kh4 g3 Qg4 Bd4 f8Q+ Nf7 Rh2 g2 Kg3 Re1 Qc8 g1Q+ Rg2 Be3 Ba3 Bb6 Bc5 Nf6 Qcf8 Nfd5 Qc8 Nf4 Qcf8 Rg8 Qc8 Kh8 h7 Rgd8 Qf5 Ne6 Bg4 Kg7 h8R Re8 Rh6 Nd8 Rg6+ Kh7 h6 Kh8 h7 Re4 Bh3 Rh4 Re6 Rg8+ Qg4 Rg7 Re3 Rd1 Qf5 Re1 Rc2 Ra1 Rd3 Qc1 Re3 Qd2 Rd3 Qg5 Rc1 Rg6 Re3 Rd6 Rd3 Rd7 Re3 Na4 Ra3 Nc3 Qfe6 Qgd2 Qgg5 Rd6 Qed5 Qe3 Bc8 Rd7 Qg4 Qg5 Qf5
3bRQr1/1n3n1p/1q3b2/rQQr2NB/BqqBK3/2P3Nk/1QP5/1RR2b2 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 h4 f5 exf5 gxh4 Ra4 c4 Ra1 c3 dxc3 Bb7 Qd4 Ba6 Qd1 Bc8 Kd2 Kf7 Ke3 Kf6 b4 Kg5 g4 a5 b6 d5 f6 e5 b7 e4 f7 h3 f4+ Kh4 g5 h2 g6 a4 f5 d4+ Kf4 d3 b5 e3 f6 a3 g7 e2 b6 e1B Qe2 a2 Nd2 Nd7 b8Q Nh6 g8B Ra5 b7 Qb6 Rb1 a1Q Nh3 Nc5 Ne4 d2 Nhg5 d1R Be3 Qa2 Bd4 Bg7 f8Q Bh3 f7 Qc4 Ng3 Bf6 Qf2 Rd2 Be2 Bf1 Bh5 Qcb4 Rg1 h1Q Qbe8 Qh2 b8Q Nb7 Qb5 Qg2 Qfc5 Qd5 f8R Qdc4 Ke4 Nf7 Re8 Rd3 Qff5 Bd2 Qfc8 Bf4 Qd8 Bc7 Qdd6 Bcd8 Qf8 Ne5 Be6 Nf7 Bd7 Rg8 Bc6 Qa4 Qb2 Qab4 Ba4 Rd2 Ne6 Kh3 Qbe5 Be2 Rgc1 Bf1 Qb5 Rf2 Qed5 Rf5 Qdc5 Rd5 Ng5+
2n1r3/1B2brRp/3R1Q1N/BkN5/qq1r2Q1/nP1bR3/P3nB1K/2B2qN1 b - - 0 1 illegal: No proof kernel
nbnqBb2/R5Qp/P2Qq3/RNN4R/4BQr1/1n1K4/1qP3b1/B1rQk3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 g4 e5 a4 d5 f4 b5 c6 b3 c7 b4 g6+ Kf6 g7 d4 a5 b2 a6 b3 Bd3 e4 Qf3 Bb7 c8R Nd7 Nc3 b1Q Ra5 b2 Rh5 Rb8 Rc7 Ne7 g8B Nc8 Nge2 Ndb6 Ng3 Na8 Bf7 Rg8 Be8 e3+ Ke2 Qd7 Nb5 Qe6 Be4 Bc6 Kd3 e2 Bd2 e1B Ra7 Qa1 Bb4 b1N Bc3 Nd2 Bb2 Nb3 Bc3 Bb7 g5+ Kg7 g6 Kf6 g7 Qb2 Nf1 Bg3 Nd2 Qc1 Ba1 Qb2 Nb1 Bc6 N1c3 Rb7 Na4 Bh2 Ke2 d3+ Ke3 d2 Nc5 Rb6 Kd3 d1Q+ Ke3 Rh8 g8Q Qd8 Qgg4 Bd5 Kd3 Rg8 Qgg2 Rb7 Qd2 Rg1 Qb4 Rbg7 Qc4 Bb7+ Qd5 R7g4 Qd6 Kg7 f6+ Kg8 f7+ Kg7 f5 Kf6 Rh3 Kg5 f6 Rc1 Rh6 Bg3 Rh1 Bh2 Qf4+ Kh4 Qf3 Bg7 f8Q Bc6 Qh8 Bf8 f7 Bb7 Qf4 Kh3 Qg7 Bd5 Bg6 Kg2 Bf5 Bf3 Be4 Bg3 Rh5 Kf1 Na4 Ke1 Nc5 Bg2 Qf3 Be7 f8Q Be5 Q8f4 Bf8 Qdd7 Bc7 Qdd6 Bb8 Qd1+
1BB4R/B1r1NP2/q1p2K1b/N5Q1/1r1n4/R2k1b2/2qPb3/1QrQnqQN b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 a5 f4 h5 b4 e5 g4 a4 b6 c6 b5 h3 d6 a3 d7 h2 b7 a2 b6 h4 Ba6 h3 Bb2 Bh6 Bd4 Qe7 d8Q Ra7 Ne2 Nd7 b8B Rc7 b7 Rh7 Bda7 Nc5+ Kf3 Rh8 Na3 Nd3 Ke4 Ne1 Ng3 Be6 Qd5 Qh7 Nc4 Ne7 Na5 Rd8 Qc5 Bc4 Qg1 Be2 g5+ Kf7 g6+ Kf6 g7 Rd4+ Ke3 e4 g8Q Rb4 Qd8 Rb1 Kd4 e3 Bc4 Rb2 Be6 Qg6 Bc8 Rb4+ Kc5 Qh7 Kd6 Qg6 Rc1 a1Q Rc3 Qa2 Ra3 Qc2 Qg8 Qf7 Qd8 Qfc4 Qg8 Qa6 Qg5+ Kf7 f6 Nf5+ Ke5 Nd4 Qh4 Kg6 f7 Bh5 Qe7 e2 Qc5 Bf3 f5+ Kg5 f8N Bg4 Kd6 Kf4 f6 Bh5 f7 Bg4 Nh5+ Ke4 Qg5 Bf3 Ng6 Bg4 Ra1 Kd3 Ke5 Bf3 Ne7 Bg4 Kf6 Bf3 Q1g2 Bg4 Rg1 h1R Ng3 h2 Rf1 Rg1 Nh1 Bh5 Rf4 Bf3 Rh4 Bg4 Ng3 h1B Qf2 Bhf3 Nh1 Ng2 Qg3 e1Q Ra2 Qf1 Ra3+ Qb3 Rh2 Ne1 Qf2 Be2 Rh5 Bgf3 Rh2 Rg4 Qg1 Re4 Rh3 Re5 Rh2 Rc5 Rh5 Rc1 Rh4 Bf8 Rh8 Bh6 Ng3 Rbc4 Nh1 Rd7 Bh2 Qc3 b8Q Rb7 Ra4 Qc2 Be5 Rd7 Qb1 Rb4 Beb8 Rc7 Ra3+
q1B2b2/Qnb1Rpr1/3R2qr/rb2B3/1NPRQP1N/8/n2N3k/KnQ1Q3 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 f4 Kg4 e4+ Kg3 c4 h5 b6 d5 e6 a5 e7 h3 e8Q h2 c6 a4 c7 d4 b7 d3 e5 h4 e6 h3 e7 d2 Nf3 Nf6 Nh4 Nc6 b8N Ra5 Na6 Qd3 Nb4 Ba6 c8Q Nd7 Qb7 Nc5 Qa7 a3+ Ka2 Rg8 Bb2 Qh7 Be5 Qg6 Qc1 d1N Nd2 Bb5 Bd3 Rg7 Bf5 Nb7 Re1 h1R Bc8 Kh2 g4 Nb2 g5 Nd1 Rb1 Nc3+ Ka1 a2 Rb3 Nb1 Rd3 Nd4 Re4 Ne2 Rd6 Nec3 Red4 Kg3 Qc6 h2 Nhf3 Kg2 e8R Kg3 Qe4 Kg2 Kb2 Kg3 Nh4 a1B+ Kc2 Na2 Re7 Re1 Kb3 h1Q Kc2 Kh2 Kb3 Qf6 g6 Rg1 Qce1 Rg5 Kc2 Rh5 Qc1 Rh6 Qee1 Rgh7 g7 Qg6+ Qe4 Qhg2 g8Q Rg7 Kb3 Bb2 Qee1 Qc6 Qh7 Qe8 Bg4 Qa8 Bc8 Qf6 Qhc2 Qg6 Qce4 Bc3 Nd3 Bb4 Kb2 Bc5 Ka1 Bb6 Nb4 Bd8 Qc3 Bc7 Qcc1
2B1qr2/1NRRpr2/n1Bb2Qr/1qn3B1/3Pb2q/2K4N/1QPRR3/4Qkn1 b - - 0 1 illegal: No proof kernel
N7/Q1PnKRB1/1rp1Q3/b1BBP3/2Qq1rb1/1q1N2nR/3n1B2/1bk1N1r1 b - - 0 1 illegal: No possible last move
1nb1RQbK/qBp1R2n/R1r3Bb/2n2q2/2Q3PN/4r2q/2PBR3/1N1N2k1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 Ke2 Kf7 Kf3 d5 Kf4 a5 b4 h5 g4 d4 b6 a4 b7 d3 e6+ Kf6 e7 d2 e8B h3 b5 h4 b6 a3 Ne2 a2 Bg6 h2 Nec3 h3 Bg2 Qe8 Qe2 d1N Bd2 Rh4 Re1 h1B Qc4 h2 Re2 Nb2 Nd1 Qb5 Ke4 Rh8 f4 Nd3 Kd4 Rh6 Bd5 Na6 b8R Ndc5 Bb7 Bd5 Re7 h1Q Re2 Bd7 Rbe8 Nb8 R8e7 B5e6 Bb4 Qh3 Bd2 Nd3 Ke4 Ra3 Kd4 Bf7 Ke4 Nc5+ Kd4 Kg7 Ke5 Bc8 f6+ Kh8 f5 Re3+ Qe4 Bb3 f7 Kg7 Bb4 Nf6 Bd2 Nh7 f6+ Kh8 Ba5 Bg7 f8Q+ Bg8 Bd2 Qd3 Qd8 Bf8 f7 Kg7 Qd6 Rh4 Qf6+ Kh6 Qd6 Kg5 Qd8 Bh6 f8N Qh1 Qe8 Rh3 Qf7 Kh4 Qf2+ Reg3 Qc4 Qd7 Qf1 Rc3 Qf6+ Kg3 Qf5 Ng5 Kf6 Qg2 Qf1 Kh2 Qff4+ Kg1 Qd6 Rhe3 Qdf4 Nh3 Qf5 Bg5+ Kg7 Bh6+ Kh8 Ng5 Qcf7 Kh2 Bc6 Nd3 b7 Kg1 Ba4 Nh7 Ne6 Na6 b8R Qh3 Bc6 Bb7 Rbe8 Nb8 Ng5 Bc8 Bb7 Rc6 Qc4 Nc5 Qff7 Qf5 Nf3+ Kf1 Nh4 Kg1 Na3 Nba6 Qf8 Nb8 Rb1 a1Q+ Rb2 Bge6 Nb1 Qa7 Rb6 Bg8 Ra6
k7/1PRr1qNB/3R2bn/QK1N1p2/1Q3n1N/2b1QPr1/1br3Bn/q1N3B1 b - - 0 1 illegal: No possible last move, all moves rejected
2r1b1Q1/1P5q/K2bBq2/nP6/rQ1Bn3/NrB1N1RQ/p3q3/2N1BRnk b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b6 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 Ke4 Kb5 h5 d4 a5 f4 c5 g4 e5 b4 c4 b7 c3 f6 h3 g5 a4 g6 a3 g7 a2 d6 c2 f7 h2 d5 h4 f5 h3 d7 Ra3 d6 Rd3 f6 Ne7 g8N Ng6 Ne2 Kf3 Bd2 c1R Rg1 h1Q Qb3 h2 Bh3 e4 Na3 e3 Nh6 Nf4 Ng4 Nc6 Ka6 Rh4 b5 Na5 Qc3 Qe7 d8B Bd7 Bb6 Be8 d7 Qd6 Qb3 Rc8 d8B Qd4 Qe6 Rb3 Bc3 Bd6 Rae1 Qe5 Nc1 e2 Ne3 Rg4 Rd1 e1Q Qd7 Qf2 Rdf1 Qf5 Bc5 Rh4 Rg7 Ne2 Ba7 Ra4 Bad4 Ng1 f8Q Bb8 f7 Bd6 Bh4 Qf6 Re1 Qe2 Qg8 Qhg2 Qe6 h1N Rf1+ Nf2 Rg6 Qh1 f8Q Bb8 Qb4 Bd6 Qd7 Qh2 Qdh7 Qh1 Be6 Qh2 Ng4 Kg2 Ne3+ Kh1 Rg2 Ne4 Bhe1 Qhh5 Rg3 Qhh6 Qf5 Qh7 Qh3+
Bq3Q2/BP1rnK2/2r2p1q/7n/4RQPN/N1kb2n1/Nq2Q1B1/NbbR4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 b4 c5 g4 h5 d4 a5 b6 a4 b7 a3 g6 a2 d6 f3 d5 h4 b5 h3 e4+ Kb4 g7 c4 b6 f2 d7 h2 d6 c3 Nf3 f6+ Ke6 c2 e5 Rh5 Be3 c1Q Na3 Na6 b8Q Rh4 Bg2 f1B Qe2 Qc5 Rd1 a1Q Kf7 Rh8 e6 Nc7 e7 Qc2 e8B Nd5 Nh4 Nge7 g8Q Bh6 Qf8 Qac1 Bg1 Qdc7 d8N Q2b2 d7 Kc3 Nb7 Ra7 d8N Bf5 Na5 Nf4 Nb3 Bb1 Nc6 Nh5 Na1 Qg3 Rd4 Rd7 Nb4 Bd2 Bf2 Rg8 Rg1 h1N Qf4 Rg5 Ba8 Rc5 b7 Rc6 Re4 Qh2 Ba7 N1g3 Qee3+ Bfd3 Qe2 Qd1 Rh1 Bc1 Re1 Qdd2 Rd1 Rd5 Bd7 Rdd6 Be6 Rd7 Bd5 Qe3 Re6 Qe5 Bg2 Qb8 Re4 Ng7 Nf3 Qh6 Nh4 N7h5 Na2+
4qNb1/P3Q3/KB1bQ3/3Q4/3qBpn1/1PB1R1Rr/2n1RnB1/1rbk1Nq1 b - - 0 1 illegal: No proof kernel
r7/PQRNN3/3R3r/b1p1q2R/3qN3/1BBP1rbn/1Kb1n2B/3QkqB1 b - - 0 1 illegal: No possible last move
R7/P1Q2Nb1/Bqp4P/2qN3B/1Q3n1K/2B1NrR1/rRB1k1b1/1rq2n1n b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg3 g5 h4 f5 e4 b5 d4 g4 a4 b3 e6 Kd6 h6 b2 h7 b4 h5 c6 a5 b3 h6 Na6 e5+ Ke7 d6+ Ke8 e7 Kd7 e8B+ Ke6 d7 Kd5 e6 Ke4 e7 f4+ Kh4 f3 d5 f2 d6 g3 Qd2 g2 Ra3 Ra7 Ne2 Kf3 Nf4 g1Q Bg6 Nc5 a6 Na4 Bc2 Nf6 e8B Nc3 Ng2 Nce4 Rh2 Bg7 Ne3 Rf8 h8R Ng3 Qb4 Nh1 Nc3 b1Q Ncd5 b2 Bd2 Qc1 Bc3 Qb6 d8N b1R d7 Nh5 Nf7 Nf4 d8Q Bh3 Qc7 Bg2 Bfd3 f1N Rg8 Rb7 a7 Ra1 Ba6 Ra2 Rb3 Qc5 Rb2 Rb5 Rh3+ Ke2 Rg3 Qb6 Ng4 Qgc5 Nge3 Nd3 Nh8 Rf3 Bh5 Nf4 Ra8 Ra1 Nc4 Rb1 Nf7 Ra5 Rb3 Ra4 Rb2 Ra2 Nce3+
1N6/P2q1pqb/1rR1nN1Q/PR1N1Bn1/3k2Bb/1b2B1QN/4KQ2/q3nr2 b - - 0 1 illegal: No possible last move, all moves rejected
rR5b/Bk3b2/1n4nr/2bb1Q2/2NQRbN1/1N2PBp1/1q2rPK1/B2R1B2 b - - 0 1 illegal: No proof kernel
1B1r2b1/b2krbQB/1q3n1Q/n5n1/1PR2p2/RQ1BPR2/1K3b2/N2bQN2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 a5 d4 f5 Kd2 h5 Kc3 c5 d6 c4 b6 f3 b7 h4 d5 h3 g6 a4 d7+ Ke7 g7 a3 g5 a2 g6 f2 Nf3 h2 Nd4 Nf6 g8B Nh7 g7 Ra7 Nb3 Ng5 Qe1 Qb6 d8R Nd7 b8Q Nf6 Bf4 Be6 Rc8 Kd7 d6 Bf7 Bh7 Rg8 Kc2 c3 N1d2 Be7 e3 Rd8 Kc1 c2 Bd3 f1B g8Q Be2 Qg7 Bd1 Rf1 h1B Rc4 Bhd5 Rf3 Rc7 Be5 f4 Nf1 Bg8 Qh6 Bdf7 Qg7 Ke6 d7 Bc5 Kd2 c1N Kc3 Ra7 Qb7 Ke7 Bb8 Ke6 Nbd2 Nb3 Qh6 Na5 b4 Be7 Nb3 Bc5 Kb2 Be7 Rac1 Bc5 R1c3 a1B+ Ka2 Bb2 Na1 Bc1 Rb3 Bd2 Ra3 Ke7 Kb2 Ke6 Qe2 Be1 Qc7 Bf2 Qe1 Rf8 d8Q Re8 Qd4 Rd8 Qc8+ Rad7 Qc7 Re7 Qdc3 Bd4 Qe5+ Kd7 Qd5+ Qd6 Qe5 Ba7 Qb3 Qb6 Qd4+ Nd5 Qh8 Nf6 Q8g7
1qr1Q3/RRbRbbK1/n2nB3/Bbr2p2/1nbQ1B2/1N2PP2/4N1k1/1BQ5 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 c4 Kg4 c6 a5 e6 d5 Ke5 f5 b6 h5 b7 d4 g3 h3 e7 a4 e8B a3 c5 d3 c7 h2 c6 d2 Bf7 a2 Be6 Na6 b8B Bd7 c8R h4 c7 Ne7 Kf6 h3 Ba3 Bb5 Bb4 Ra7 Ba5 Nc6+ Kg6 Qd6 Rd8 Ncb4 c8Q Rc7 Rd7 Be7 Kg7 Rc5 Qc1 d1B e3 Bb3 Nd2 B3c4 Qe8 Qb6 Bf4 Qb8 Bd3 Rf8 Rb1 a1B+ Rb2 Rh8 Nb3 Rf8 Ne2 Kf3 g4 Kg2 Rd1 h1B g5 h2 g6 Rh8 Ra7 Rf8 Qd7 Rfc8 Bg8 Bf7 Qd4 Bfc4 Rb1 Bc3 Be6 Ba1 Qf6 Be5 Rb2 Bc7 Qd4 Kh3 Bb1 Bhd5 f3 h1N Kh6 Ng3 g7 Kh2 g8Q Kg2 Qe8 Ne4 Kg7 Nd6 Bd7 Bf7 Be6 Bg6 Qdc3 Ne4 Rd7 Bf7 Qd4 Nd6 Rd2 Bb6 Rdb7 Bc7 Qe5 Ne4 Rd7 Nd6 Qd4
Nb4bB/1r2k2B/q2R4/n1nbKp1P/n2B2Q1/1P1QR3/NnQ1n2B/5r1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 c5 Ke4 g5 h4 a4 d4 g4 d6 a3 h6 f3 h7 f6 h5 a2 d5 f2 d7+ Kf7 d6 g3 b6 g2 b7 c4 Nc3 Ne7 Rh3 Ra7 Be3 Na6 b8B Nc6 Bd4 Qb6 d8Q Bb7 d7 Bd6 Re3 Rf8 Nh3 g1N Qc8 Ke7 h8B Na5+ Kf5+ Be5 Qc2 Nc5 Rd1 a1N Na2 c3 Rdd3 Na4 d8Q+ Kf7 Bg2 f1B Nf2 N1b3 Be4 Bd5 Nh1 Nbc5 b3 Qa6 Rd1 Bd6 Rd2 Rb7 Bc7 Be7 Bh2 Bd6 Bd3 Bb8 Qd6 Nf3 Kf4 Ne1 Bh7 Bfg2 Qg4 Ned3+ Kf5 Ndb2 Kf4 f5 Ke5 Rc8 Rd1 Rcc7 Qd7+ Kf8 Qb5 Bf1 Qbd3 Ke7 Qdd2 Qh6 Qb1 Qa6 Rf3 Be6 e4 Bc8 Bdg1 c2 Kd4 c1N e5 Kd8 e6 Re7 Qbc2 Re8 e7+ Kd7 Qe3 Bg2 Qee4 Rd8 e8N Ne2+ Kd5 Qd3+ Qd4 Qa6 Nc7 Ke7+ Ke5 Be6 Rg3 Rd6 Na8 Bg8 Qdc4 Rdb6+ Rd6 B2d5 Bf2 Rb4 Q4d3 Rf4 Bd4 Rf1 Re3
n1k4n/1R5B/R1Q1NqN1/1brPBPR1/b5nB/nN3p2/Q1r2R2/bn4K1 b - - 0 1 illegal: No proof kernel
1bb3Q1/2RkN2n/3bq2R/bbP3R1/pN3P2/KBQrBB2/2N5/3n1nRr b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 d5 Kc3 a5 Kb3 e5 h4 g5 c4 a4+ Ka3 e4 f4 e3 b4 d4 c6 g3 b6 g2 b7 g4 c7 e2 c5 e1N f6 d3 h5 g3 b5 d2 f7+ Kd7 h6 Qe7 b6 Ra6 h7 Nd3 Rh5 Qe5 Nh3 g1B Qc2 d1B Qc3 g2 Rg5 Be7 f8Q Nb2 Nf2 Qe6 Nd3 Bf2 Be2 g1B Bf3 Nh6 Qg8 Bd6 Nb4 Be1 Bd2 Be2 Be3 Nc6 b8R Nd4 b7 Nf7 Ra8 Bb5 b8R Rb6 Ra6 Nd1 Rba8 Rb8 Rc6 Ne2 Raa6 Ng3 Rab6 Nf1 Ra6 Bb7 Rab6 Rd8 c8B+ Ke7 Bd7 Bc8 Be8 Bb8 Ra6 Rd3 Rab6 Nh6 Bf7 Ng4 Ra6 Nf6 Rab6 Qf5 Bb3 Kd7 Ra6 Nd5 Rh6 Nf6 Rc6 Qg4 Ka2 Qh3 Na3 Qe6 Nac2 Bgf2 Ka3 Bd6 Bc1 Bd4 Be3 B4e5 Qf8 Rg8 h8N Nh7 Ng6 Rh8 Ne7 Bb8 Rb1 Bed6 Qg8 Nf6 Rhg6 Rh1 Rh6 Nh7 Na2 Nf2 Qcg7 Ba5 Nab4 Ng3 Rg1 Nf1 Qc3 Nd1 Rc7+
2n1b1b1/B5n1/1Q1n4/1pR2N2/R1PNR2P/2kQr3/QbrN4/nBq1nQK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 h4 Kf6 a4 Ke5 h6 b5 a5 g5 c6 d5 c7 g4 f3 b3 Kf2 b2 a6 g3+ Kg2 d4 f6 d3 h7 Kd4 f4 e5 f7 d2 a7 e4 f5 e3 f6 e2 Nh3 Nh6 Ng1 Nf5 Rh2 Nd7 Na3 b1B Nc2+ Kc3 Nf3 Nb6 Ne3 Bd7 c8R Ba3 f8N Ng7 f7 Qg5 Ne6 Re8 f8Q e1N+ Kh1 Bg6 Bd3 Nc2 Re2 Bf7 Rc7 Rad8 a8Q Nc8 Qc6 Bb2 Ra4 g2+ Kh2 Na1 Bb1 g1N Qa3+ Nb3 Qf1 d1N Qa2 Bg8 h8Q Na1 Qh5 Re7 Nf5 Be8 Be3 Nf2 Ba7 Rd2 Qb6 Rc2 Rc5 Qc1 Ned4 Ne4 Nd2 Nf3+ Kg2 Ne1+ Kg1 Ned6 Qg4 Re4 Qgg2 Rf4 Re4 Rf3 Qge2 Re3 Qd3+
4B3/rRrk1RK1/n3r2p/2nb2R1/1QrN3P/PqN1N3/QbB2Rr1/b3Q3 b - - 0 1 legal: proof: c4 a5 b4 e5 bxa5 d5 cxd5 e4 Bb2 e3 Bf6 gxf6 fxe3 f5 e4 f4 e5 Qd6 Na3 Qd7 Nb1 Qd8 Kf2 b5 Kf3 c5 Ke4 h6 h4 f6 g4 b4 d4 b3 g5 c4 e6 f5+ Ke5 c3 e4 f3 d6 f4 g6 f2 d7+ Ke7 a6 f3 a7 b2 d5 c2 g7 c1B Ne2 Qb6 d8R Be3 Qe1 Qb5 Rd7+ Ke8 e7 Bb6 Rb7 Qa5 Nbc3 b1R Rh2 Bg4 Nd4 Qb4 d6 Na6 Bd3 f1R Rf2 Qb3 Bc2 Nf6 g8R Rc1 Rg5 Bg7 a3 Rc8 a8Q Rh7 Qb8 Rg1 Ra2 Rg2 d7+ Kf7 d8Q Rc4 Qdc7 Be6 e8N+ Kf8 Qcd8 Bd5 Nc7+ Kf7 Qg8+ Ke7 Qbf8+ Kd7 Qb4 Bh8 Rf1 f2 Kf5 Ba5 e5 Ne4 Kg6 Nec5 Rb2 Re7 Ra2 Re6+ Kf7 Bc6 N7d5+ Bc7 Ne3 Bd5 Rg1 f1R+ Rf5 Rgg6 Rg5 Rf2 Kf8 Rg2 Rf7+ Re7 Bd3 Re6 Raf2 Kc8 Bc2 Bd8 Rb5 Ra7 Rb6 Bdf6 Rbb7 Rc6 e6 Rb6 e7 Re6 Ndf5 Bd4 Na2 Bb2 Nc3 Na4 Nd4 Rc7 Qg6 Kd7 Qh5 Ba1 Qhe2 N4c5 Qec4 Qb1 Qa2 Qb3 Kg8 Rc6 Ncd1 Bg7 Bb1 Ne6 Ndf5 Bgb2 Nd4 Nec5 Kg7 Rc3 Bc2 Rc4 Nc3 Re6 e8B+
3Q2bQ/1q3Q1r/2NN1P1N/rk5K/2R2Pr1/nb1Rp3/1B1bB2R/1R1b1bn1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 e5 Kg4 h5+ Kh4 d5 f4 Kd7 b4 e4 g4 d3 c4 e3 b6 Kc6 b7 d2 f6 a4 c5 a3 g6 d4 g7 d3 g5 a2 g6 Be6 Qe2 d1B Na3 d2 Rb1 a1R Nb5 Qd5 Rh2 Ne7 g8R Na6 b8Q Rh7 g7 Nc7 Bb2 R1a5 Qd8 Bb3 Nd6 d1B Qc4 Nb5 Be2 Na3 Nf3 Nf5+ Kg5 h4 Rh8 h3 g8N Rd7 Nh6 Bg8 Kh5 Rg7 Rh7 Rg4 Rd7 Qe4 Qe6 Nd4 Qee7 R8a7 b5+ Kd5 c6 Kc5 c7 Qb7 Ne5 Nf3 b6 Ng1 c8R+ Kb4 Nc4+ Kb5 Qf7 Bb4 Nc6 Be1 Rd3 Bd2 Rf2 h2 Nd6+ Kc5 Rc7 h1B Rh2 Bg2 Rc8 Bf1 Rc7 Qb8 b7 Qc8 b8Q Qb7 Ne5+ Kb6 Rc4+ Ka6 Ndf5 Kb5 Nc6 Bh7 Qh8 Bg8 Qd8 Qc8 Qfe8 Rh7 Qf7 Qb7 Nd6+
RBr1QB2/rnr1qb1k/4QPn1/R2Q3P/1pB1B2r/4R1N1/K3N1rn/4b3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 f4 g5 a4 Kg7 d4 b5 Kd2 c5 Kc2 e5 Kb3 e4 d6 e3 f6+ Kh7 a5 c4+ Ka2 e2 a6 e1R h6 g4 d7 c3 f7 c2 d5 g3 d6 g2 a7 Bb7 h5 Bd5+ Bc4 Na6 f5 Qe7 d8Q Re2 f6 Nc5 d7 Nb7 Bf4 c1R+ Nd2 Rc8 a8B b3+ Kb2 Rf2 Ne2 g1N Qe8 Nf3 d8Q Rg2 Nf1 Nh2 Qdd7 Rc7 Ra5 Ra1 Qe6 b4 Rc5 Ra7 Ng3 Bg7 Kb1 b2 Ra5 Bf8 Ka2 b1R Qb3 Rf1 Bd6 Rf4 Re1 Bg7 f8B Rh4 Qee3 Bf7 Qe6 Qd8 Qf3 Ne7 Qfd5 Ng6 Bf4 Rc5 Bb8 Qe7 Rf1 Rc8 Rf3 Rc7 Qdb5 Nd6 Be4 Nb7 Qbd5 Qd8 Bd6 Qe7 Re3 Rf8 Qeb5 Rfc8 Qe8 Qd8 Bf8 Qd6 Qc5 Qe7 Qcd5 Rh3 Q8d7 Qd8 Rd3 Rh4 Bc5 Kg8 Qa4 Qd6 Rc3 Re8 h7+ Kf8 Qad7 Bh6 Qc8 Bd2 Re3 Be1 h8R+ Bg8 Rh7 Rd8 Rd7 Re8 Rd8 Bf7 Qcd7 Kg8 Rc8 Qa6 Bf8 Kh7 Q7b5 Rd8 Qa4 Qd6 Qae8 Rc6 Bc7 Qe7 Rb8 Rc8 Ra8 Rc5 Bb8 R5c6 Qed8 R6c7 Qe8
1b2nQnn/1BNN2q1/1N1r1p2/R1B2b2/bRB1PP1b/6br/K4Qk1/Q1Q5 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 c4 Ke4 f4 g5 h4 d5 e6 a5 h5 a4 h6 d4 e7 d3 e8B d2 b6 a3+ Ka2 g3 b7 g2 c6 g4 e3 g3 h7 Ra6 c7 Nd7 b8Q Be7 c5 Ndf6 c6 Qd4 Qe1 d1B Qf2 Bf5 c8N Ba4 c7 Rd6 Nf3 g1B Bc4 g2 Ne5 Bh2 Nd7 g1N Ncb6 Bg3 c8Q Nf3 Bd2 Ne5 Bb4 Bd8 Bc5 Ng6 Re1 Be7 Re2 Bd8 Rb2 Bc7 Qa7 Bb8 Rb4 Qc3 Qh2 Kf3 e4 Qd4 Nc3 Qe5 Qh6 Kg2 Ncd5 Qe7 Nc7 Qf8 Ne5 Qg7 Bc6 Ne8 Ned7 f6 Qh5 Bh4 Qd1 Bg3 Qc1 Bh4 Qca6 Bg3 Kb1 a2+ Kb2 Bh4 Bb7 Bg3 Rb1 a1B+ Ka2 Bc3 Ra1 Bce1 Qa5 Nh6 Q5a6 Bh4 Qa5 Beg3 Q5a6 Rf8 h8Q Rf7 Qf8 Ng8 Rab1 Re7 R1b3 Nh8 Ra3 Bc2 Ra5 Ba4 Qb5 Rf7 Qc6 Re7 Qd5 Re5 Qdd1 Red5 Qe1 Rd1 Qec3 Rh1 Q3a1 Rh3 Be3 Bh2 Nc8 Bg6 Q7d4 Bf5 Ncb6 B2g3 Bf2 Be6 Qdd2 Bf5 Bc5+ Bf2 Qdd4 Bfg3 Qf2+
2N5/1bR1bqb1/bR1nQpP1/K1b2Q2/1N5r/8/B2n2PR/Rnr1BBkN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Kd7 b4 Kd6 d4 h5 Kd2 c5 Kc3 a5 g6 c4 b6 a4 b5 h4 Kb4 a3 b7 f3 b6 a2 Qe2 c3 Bb2 h3 Nd2 h2 Nh3 c2 Ba3 c1B Nf2 Nd7 b8N Bb7 Na6 Qc7 Ka5+ Nc5 Bb4 Nf6 Qe1 Rc8 e5+ Kd7 e6+ Kd6 e7 Rh4 e8B Be7 Bd7 Ba3 Be6 Ne4 Qb1 Nc3 Qf5 Nb1 Bc3 f6 Nb4 Ne4 Bg8 Bf8 Be6 Bg7 Nc4+ Ke7 Be1 Ned2 Bf7 Qd7 Nd6 Rc1 Bg8 Qe6 Nc8+ Kd7 Nbd3 Be7 d6 Kc6 d7 Qb3 d8R Qf7 Ne4 f2 Ng3 Ne4 Rd7 Nd6 Qg4 Kd5 Qf5+ Kc4 d5 Kd4 Nb4 Ke3 Rc7 Na3 Rb1 a1B Qe6+ Be5 Ra1 Nb1 Qf5 Bd4 Qe6+ Ne4 d6 Bc5 Qf5 Ned2 d7 Re4 d8Q Rh4 Be2 f1B Qdd5 Qf8 Bc4 Qf7 Ba2 Bb5 Bc4 B5a6 Bf1 Qe8 Qc6 Qf8 Ba2 Qf7 Rg1 h1N Qce6+ Be4 b7 Nf2 Qd6 Bd5 b8R Nfe4 Rb6 Bdb7 Qdd5 Nd6 Rh1 Rc3 Rh2 Rc1 Bd3 Qf8 Nh1 Qf7 Bc2 Ke2 Be4 Ke3 Qde6 Ke2 Bf3+ Kf1 Be2+ Kg1 Bf1
1n2N1N1/3kr1n1/1Bb1pKnq/b3B3/Q1RQr2B/4P3/PQ1b1Nn1/4R1nQ b - - 0 1 legal: proof: f4 a5 g4 h5 b4 g5 bxa5 d5 c4 Bd7 cxd5 Bc8 Bh3 Bf5 fxg5 Rh6 g6 Bc8 g5 Rh8 Bg4 hxg4 Kf2 b5 Ke3 f5 Kd4 c5+ Ke5 e6 d4 b4 h4 c4 d6 g3 d5 f4 g7 b3 e3 b2 a6 f3 g6 c3 h5 f2 h6 f1N a7 g2 d7+ Ke7 h7 c2 Nc3 b1N Qd4 Nf6 g8Q Nh5 g7 Nfd2 Bb2 c1B Rh4 Na3 Nh3 g1N Nf2 Bb7 Nce4 Nc2 Nd6 Qe8 d8B+ Kd7 Bb6 Qg6 Ne8 Bb4 d6 Ba5 Qf8 Ne1 g8N Ng7 Qf3 Be4 Qh1 Ng2 Bc3 Qh5+ Kf6 Nc4 Rf4 Bd2 Re1 Ne5 Bb2 Kc6 d7 Ng6 d8B Qh6 Ba1 Bf3 Qb2 Kd7 Rc4 Bc6 Be7 Na6 Bed8 Rc8 a8Q Nb8 Qa6 Rc7 Qab5 Ne2 Qa4 Rb7 Qbb4 Ng1 Be5 Rc7 Qb2 Rb7 Ne7 Rg8 h8Q Rc7 Nd6 Re8 Ng8 Re7 Ne8 Rb7 Bbd4 Rb5 B8b6 Rd5 Bg3 Rg5 Bde5 Rg4 Bh4 Qh5 Qh6 Re4 Qf4 Qh6 Qf5 Rg4 Qd3+ Rd4 Qdc3 Re4 Qd4+
1QB1r3/n1b2rR1/1Bp1N3/K1Nb3k/b1R2b1P/B1Q1rb1n/P2Qq2N/6N1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kf7 Kd2 g5 f4 e5 h4 b5 h6 e4 d6 b3 Kc3 e3 Kb4 g4 d5 g3 h7 e2 f6 Kg6 f5+ Kh5 f7 g2 f6 b2 Qd2 e1R Qc3 Qe8 Qb3 Qe2 Qc4 Ra7 Nd2 b1B Ndf3 Bb7 Ba3 Be4 Qc3 Bh6 f8N Bf4 f7 Nf6 d7 Ng4 d8B Nf2 d6 Bbd5 d7 Nh3 Nh2 Bf3 Ne6 Re8 f8N Rb7 Ka5 b4 Nc5 b3 Rd1 b2 Rc1 b1B Nfe6 Bc2 Qd2 Ba4 h8Q+ Kg6 Rc4 Nc6+ Ka6 Na7 Qhc3 c6 Ka5 Kh5 Bb6 Rc7 d8Q Rf7 Qc8 Qe4 Bd3 Re3 Qb8 Qe5 Bf5 Qe4 Ne2 Qd3 Rc1 g1B Rc2 Bf2 Ng1 B2g3 Rc1 Qe2 Rf1 Bd6 Rf2 Bc7 Rg2 Bgf4 Rg7 Rc8 Nd4 Rcf8 Bc8 Rfe8 Nde6
n1Rb1K2/1BBb4/1P3R2/3p1NQ1/1kn2BbN/2b1rPbN/Qq5r/Bn1Q4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 e5 Kc4 Ke7 Kd5 g5 h4 a4 b4 e4 c4 d3 h6 g4 h7 a3 b6 d6 f6+ Kd7 h5 d2 c5 g3 b7 g2 h6 e3 c6+ Kc7 b5 Kb6 f7 Ka5 c7 e2 b6 e1N Ba6 a2 Nh3 Nc2 Rf1 Nd7 Ke6 g1B b8B d5 Bb7 Be7 f8Q Na3 Kf7 Kb4 Qg7 Bh2 Qg5 Bg3 Nc3 Ra7 Ne4 Nb1 Nd6 Ra3 Nf5 Ne5+ Kg7 Be6 c8Q Bd7 Bc7 Nf6 Qa8 Nc4 Kf7 Ne8 Qa7 Rg8 h8B Re3 h7 Qc8 Bf6 Bd8 h8N Qa8 Ng6 Rh8 Ngh4 Qc8 Qdh5 d1B Qhg4 Rh6 Kf8 Rh5 Qd4 Bg4 Qd1 Qb8 Qa8 Qa7 Bfe5 Qa3 Bf4 Qc3 Bb2 Qc2 Bbe5 Qb2 Bd4 Nbd2 Rb1 a1B Rc1 Nb1 Qa2 Rh7 Bb8 Nc7 Rc2 Na8 Bbc7 Nca3 Rc6 Rh5 f3 Nc4 Rf6 Qc2 Rf2 Bc3 Rd2 Qb2 Rc2 Rh8+ Kg7 Qc1 Ng1 Bce1 Ba1 Re2 Ng2 Na5 Bb8 Re3 Rc8 Bc3 Bbc7 Rh2 Ngh4 Nc4 Kf8 Qb2 Nh3
n2Br3/3b3P/2Q1q3/1k1NB3/nP1n1rp1/Q1n2BNR/2Rbn2B/3bR1NK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kg2 a5 h4 g5 e4 f5 b4 c5 d4 f3+ Kh2 g4 e5 c4 b6 a4 h6 a3 b7 f4 h5 a2 d6 Kc6 d5+ Kb5 h7 f2 d7 f3 h6 Qe8 d8Q Na6 b8N Qe6 d6 Ne7 d7 Nc5 Be2 f1B Qc7 f2 d8B Nd5 Bf4 Nb6 Nd7 Nca4 Bf3 c3 Nf6 c2 Nh5 c1N Ng3 Be2 Qb3 Bd1 Qa3 f1N+ Kg2 Bd7 Rh3 Rc8 Kh1 Ne2 Qb7 Rg8 h8B Ne3 h7 Nd5 Bg7 Rc4 Qc6+ Ka6 Bh8 Bh6 Nc3 Re8 Rc1 a1N Rc2 Nb3 Bg7 Nbd4 Bgf6 Nc7 Nd5 Ncb5 Bh8 Nbc3 Bhf6 Qd6 e6 Bg5 e7 Qe6 Bb8 Bh6 Bfe5 Bd2 Qc7 Kb5 Qd6 Rh8 e8R Na8 Re7 Re8 Qc7 N8b6 Qc6+ Ka6 Nf1 Nf5 Bdc7 Nf4 Bf6 Qd6 Re5 Qe6 Re1 Nfe2 Bh2 Rf4 Bd8 Nfd4 Qc7 Na8 Ng3 Kb5 Qc8 Rf5 Be5 Rf4 Qc6+
r3Q2n/B6P/R1RQ1N1p/2bb1rk1/3BbN2/brbRKBP1/1n4q1/Q1R5 b - - 0 1 illegal: No proof kernel
3R1r1N/b1qb2Pn/8/3rkb2/BQ1N3N/KPB2B1Q/b2QRbp1/2Q2rn1 b - - 0 1 illegal: No proof kernel
bB2n2b/RBbQ2p1/2nr3n/q1k2bKB/1R3N2/1b4Nr/N2P1PN1/1R1Q4 b - - 0 1 illegal: Other
B3Q3/2Rr1P1q/6QR/r1P3kb/RB1b3b/1b1N1bBK/Q1r1p1n1/4N1Qn b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 Kf6 Kf2 a5 Kg2 e5 c4 d5 b4 g5 h6 e4 b6 d3 c5 a4 h5 e3 b7 d4 b5 g4 b6 d2 h7 a3 h6 a2 Nc3 g3 Nf3 d3 Ne2 Qc7 Ba3 Na6 b8Q Ne7 b7 Ra7 Ne1 Nb4 Nc1 Nbd5 Bb4 Be6 Kh3 g2 Qe8 g1B b8B Bf2 Qg4 d1B Bg2 d2 Ncd3 Bf3 Qc6 Rg8 h8Q+ Bg7 h7 d1B Qb6 Re8 Qg8 Bh4 h8Q Rd8 Qe8 Ra5 Qhg8 Rd7 Rh2 e2 Bh1 Ba4 Qg1 Ne3 Qa6 Bh5 Ba8 Ng2 Qc4 Bh8 Rh1 Bd5 Qe6+ Kg7 f6+ Kh6 f5 Kg5 f7 Bdf3 f8R Bb3 f6 Nf5 Rf7 Ng3 Re7 Qb7 f7 Bd4 Rh2 Nh1 Bg3 Qe4 Qca6 Qh7 Qeb6 Rd8 Rc7 Rd5 Rc1 a1R Rc4 Rd7 Qd6 Rb5 Qa2 Ra5 Bc3 Bg6 Ra4 Rc1 Bb4 Rc2 Qd5+ Kf6 Qh5 Bg5 Qh6 Be4 Kg4 Bc6 Rh4 Bf3+ Kh3 Kf5 Re4 Bh4 Re6 Bgh5 Qg7 Qg6 Qgg8 Kg5 Ra6 Qg7 Rh6 Qg6 Qh7 Qg7 Qhe4 Qh7 Qg6+
QB2RN1K/N1R1PR2/b1b4B/5P2/4k1N1/1b2n2q/p2brQ1R/1Bbr2rn b - - 0 1 illegal: No possible last move
1R4K1/RB2PN1Q/Qn1pb3/2b2P2/3n1R2/2N3Br/QNQ1bnr1/2kq2nn b - - 0 1 illegal: No proof kernel
R1N1K1R1/2BP4/B2rb3/QNp1k1P1/Q1nQ4/Q1r2nnq/nnR4b/3B1r2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 h5 g4 a5 b4 f3 b6 a4 b7 f6 b5 h4 b6 a3 g6 h3 g5 a2 g7 h2 Na3 f2 Nb5+ Kd7 Kf5 Ra3 Kg6 f5 Kf7 f4 e4 f3 d6 Ra4 e5 Rb4 d5 Re4 Na7 Rd4 Ba6 f1R Ne2 f2 Bf4 Ne7 g8R Rh3 Qa4+ Nbc6 b8Q Nf5 b7 Ne3 Nc3 Nc4 Ncb5 N6a5 Qa8 Rc3 b8Q Nb2 Qb6 Nac4 Qba5 Rd2 Rg1 h1N Rg2 Ng3 Qa3 Rdd3 Q5a4 Qa5 Rh2 Qb4 Rg2 Qb3 e6+ Kd8 e7+ Kd7 Rh2 Bg7 Qa5 Be5 Kf8 Rh1 Q3a4 f1N Rc2 Nh2 Qa3 Rf1 Q5a4 Nf3 e8B+ Kd8 Bh5 Kd7 Qa5 Ne1 Bd1 Nf3 Rac1 a1N Rb1 Bb7 Nc8 Bc6 Q3a4 Qa3 Kf7 Nb3 Ra1 Nc1 Kf8 Qb3 Qa3 Na2 Q5a4 Kd8 Qa7 Be8 d7 Bf7 Qb6+ Bc7 Qba5 Be6 Be5 Bb6 Nbd6 Kc7 d8Q+ Kb8 Qf6 Kc7 Nb5+ Kd7 d6 Bc7 Qh8 Kc6 d7 Rd6 Ke8 Kd5 Bf6 Bb8 Bd8 Ke4 Bc7 Kf4 Qh4+ Ke5 Rg2 Qc2 Rd2 Qf5 Rc2 Qh3 Qd4+ Kf5 Q5b4 Rf2 Ba5 Rd5 Qa4b3 Nf1 Bb7 Nc1 Qaa2 Bh2 Bc7 Ng3 Qa6 Rf1 Qb6 Nh5 Ra8 Ng3 Q4a4 Na2 Qba5 Rd6 Qba3 Nb4 Qg7 Na2 Ba6 Kf4 Qh8 Ke4 Qh4+ Ke5 Qd4+
2n2rBR/2QprRrP/2N2N1R/1k1BbrBK/4b1P1/8/8/NrQnqNn1 b - - 0 1 illegal: No proof kernel
4N3/2P2N2/N1pB3b/1n1Qnr2/PKbB1R1b/2rB2n1/QR1B1kb1/R1qb4 b - - 0 1 illegal: No possible last move
4n2K/n1PQp3/3B3n/1n2P3/2Q3bQ/1Q1bR1RN/k1qRBbrn/4rB1N b - - 0 1 illegal: No possible last move, all moves rejected
1bR1bn2/R1p3BB/3N4/NQbb2r1/1B2rkP1/3qQ1nr/1P2R3/K1B1Q1b1 b - - 0 1 illegal: No possible last move, all moves rejected
1QN1bRQ1/1Bp1N2r/8/1bPbBBnr/5nP1/K1Q1qQr1/3b4/1RNk1b2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 Kd2 Ke7 Kc3 h5 Kb3 a5 g4 d5 c4 h3 f4 h2 c5 h4 e6 Kf6 e7 h3 e8B d4 b6 d3 b7 d2 Bc6 a4+ Ka2 a3 b4 Bh6 b5 Bd7 b6 Qe8 Qe1 d1B Bfg2 Na6 b8N Qe3 b7 Be2 Bge4 Be8 Nd2 Bb5 Rb1 Rh7 Nc4 Bg5 Bd3 Nh6 Nb6 Nf7 Nc8 Nb4+ Kb3 a2 Ne2 a1R Rf1 h1B Qc3+ Ne5 Bg2 h2 Nc6 Nd5 b8Q R1a3+ Kb2 Rh5 N6e7 Bh6 Bf3 Bg2 Bd2 h1B Nc1 Bg5 Be1 R8a6 Bg3 Rd6 Bfe4 Rd7 Rf3 Bf1 Rf2 Kf7 f6 Ke6 f7 Nf3 f8Q Bh6 Bh2 Ng5 Rf3 Nb4 Bb7 Nd5 Ng6 Rh7 Nge7 Ra2+ Kb3 Rg2 Ka3 Rg3 Bc2 Nb4 Rf2 Bd5 Rf3 Nd3 f5+ Kd7 f6 Ke6 f7 Nf4 Qd3 Kf6 Qg8 Ke5 Qb3 Kd4 f8Q Qd3 Rf2 Ke3 Qf6 Qc3 Bf5 Qd3 Rf3+ Kd2 Qbc3+ Kd1 Rf2 Qe2 Qf3 Bg7 Qb2 Bc3 Qa1 Bd2 Qac3 Rg1 Qh3 Qe3 Qf3+ Ne2 Bd6 Rg3 Be5 Bec6 Bd7 Bd3 Qe4 Bdb5 Rf8 Nf4 Bf5 Be8 Qf3+
6n1/QP1Q1br1/4bN1N/BPn4R/RR1qRBQ1/2b3pB/2nr1k2/2Kn3n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 Ke5 h6 Kd4 d6 c5 d7 f5 h5 a5 e5 g5 e6 a4 b6 f3 h7 f4 b7 g4 b5 g3 e7 c4 e8R c3 h6 c2 Rh4 a3 Nc3 a2 Nh3 Bg7 Ne4 Na6 Nhf2 Nc5 Ng4 f2+ Ke2 Be5 Bh3 f1N Nef6 f3+ Ke1 Qb6 d8B Ne3 d3 f2+ Kd2 Qa7 Ba5 f1B Rb1 Be6 Rb4+ Bc4 Qf3 a1N Qf2 Rd8 Re6 Ne7 Qe2 Rhg8 h8R Rg7 h7 Ng8 Nh6+ Rg4 Rh5 Rg7 Re8 Nd1 Qg4+ Bf4+ Re3 Bg2 Ra4 Bd5 Rb4 Bf7 Ra4 Ne7 Re8 Ng8 h8Q Qb6 Rb4 Rd7 Ra8 Qd6 Ra7 Qe5 Ra6 Qe4 Qh7 Be5 Qhf5 Rd8 Qe6 Rd5 Qb6 Rd7 Qa7 Rd6 Ba3 c1N Re2 Nc2 Re3 Na2 Bc1 Nf2 Re2 Nh1 Kd1 Rd7 Bf4 Nc3+ Kc1 Qd5 Re3 Nd1 Re4+ Kc3 d4 Kd3 Kb1 Qd6 d5 Bc3 Kc1 Qb6 d6 Bce6 Nf5 Rd8 d7 Qd6 Nh6 Qd4 Qg6 Nde3 Qf5 Ke2 Qg5 Kf2 Qg4 Rc8 d8Q Nd1 Qd6 Rd8 Qe7 Qc4 Qc7 Rd2 Qd7 Qd4 Rd6 Qd3 Rdd4 Qc4 Ra4 Qd3 Rdc4 Qd4 Rcb4
1b3N2/kP2Bn2/1q1b1nN1/rP2R1Bn/Npr5/1Q1n1Q1R/n1N3bQ/1B1K4 b - - 0 1 illegal: No proof kernel
3b1K2/1P2PBRN/1n2rq2/1R4Q1/2p5/RrB3Nr/rN2kbRr/1Q2Bbn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kg4 h4 c5 b4 a5 e4+ f3 d4 g5 h6 f5 h5 f4 h7 a4 h6 a3 d6 a2 d5 Ne7 Kf6 Ra3 Kf7 Rg8 h8R Qb6 e5 Nbc6 e6 Qc7 h7 Nf5+ d7 Ba6 b6 Ng3 d6 Na5 b7 Qc6 d8Q Rg6 b8R Nc4 d7 Be7 b5 Rb3 b6 Ne2 Rg8 f2 h8B f3 Bd2 Bf6 b7 Nb6 Nc3 Be7 Rb1 a1R Be1 Ra2 Rh2 Bd3 Bg2 f1R Na4 c4 Rg7 f2 Nb2 Rh6 Ke8 Rh3 Bd5 Kg3 Rc8 g4 Rg2+ Kf4 Kf7 Ke3 Ra8 g3 Ra3 Bg5 Qg8 Bd8 e7 Qf6+ Ke8 Rh2 Bf7 Rh3 Kf8 Rh2 Nf3 Rfh1 Nh4 f1R Nf5+ Kf3 Qc1 Ng1 Qg5 Rf2 Qh7 Bf1 Qhg6 Re2 Qh7 Bc7 d8N Re4 Ne6 Bd8 Nc7 Re6 Nd5 Rh3 Qhg6 R1h2 Qh7 Qc3 Nf6 Qe5 Qhg6 Qc3 Nh7 Qf6 Rc2 g2 Ng3 Ne2 Rd2 g1B Qc2 Bd4 Qcg6 Ng1 Rg2 Qf5 Rc1 Qf6 Qb1 Bf2 Rd1 Rd6 Rd5 Rc6 Rb5 Re6 Rg8 Qf4 Bhc3 Qf6 Qh4 Ke3 Rg7 Kf3 Qg4+ Ke3 Qg5+ Kf3 Nf5 Ke2 Ng3+
N3bQ1N/1PB1pq1r/KR1nBP2/2N1Rn2/2R1B2r/7Q/bbbb4/2Bk2r1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 b4 h5 g4 c5 f4 a5 f6 a4 d6 h3 d5 h4 g5 h2 d7 h3 f7 a3 f5 a2 g6 Bg7 f8Q Rh7 d6 Bc3 g7 Ra5 f6 Nh6 g8B Nc6 b6 Ra3 Kb5 c4 b7 Rf7 b8R Bd2 Qh5 Ke3 Nc3 Ra4 Rb6 Na5 Ne4 c3 Bd3 c2 Nc5 Nf5 Nf3 Qe8 Ng5 Rh7 Be4 Qf7 d8N Bd7+ Ka6 Be8 d7 Kf2 Rg1 h1B b5 h2 Qh3 Ke2 Rg4 Kd1 Nde6 Rd4 d8B Nb7 Rh4 Nbd6 Bc7 Rc4 Rb1 a1B Rh5 Bg2 Rb4 h1B Ra4 Bb2 Rb4 Qg6 Nf7 Bf1 Rg5 Bd3 Nh8 Qf7 Ra4 Rd4 Rh5 Bc4 Rb4 Ba2 Rc4 Ne3 Re5 Nef5 Bd8 Bf3 Nc7 Bh5 Na8 Bg6 Bd5 Re4 Bc7 Reh4 Be4 Bd4 Ba3 c1R Bb2 Rb1 Bc1 Bb2 Rd4 Qg7 Be6 Qf7 Rc4 Nd4 Bc6 Bc2 Be4 N4f5 Rc6 Bbc3 b6 Bb2 b7 Ke2 Rb6 Bb4 Bh6 Rg1 Qh2+ Kd1 Bc1 Bd2 Qh3
1bN2b1n/1pbB2N1/NN1k1br1/r1R2Pr1/8/BRP3RB/QQb3K1/4q2n b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 h4 e5 a4 Ke7 f4 d5 Kf2 g5 a6 e4 a7 g3+ Kg2 d4 a5 d3 f6+ Kd7 f5 d2 h5 g4 c6+ Kd6 a6 e3 f7 e2 h6 e1B c7 Nd7 h7 Bf2 Qe2 d1R Nd2 Ne7 Rh3 Rg8 h8Q Ng6 Ra5 Nf6 Nb3 Qe8 Nc5 Bd4 Nf3 Ne4 Ba3 Nf2 Ng5 Bf6 Nge6 Nh1 Ng7 Be6 c8B Bb3 Bd7 Qe3 Qc4 Qe1 Rb5 Ba4 Qa2 Rd4 c3 Bc2 Rb3 Rd3 Qh6 Nh8 Qc1 Re3 Qcb2 Re6 Nh5 Rg5 Ng7 Rae8 a8N R8e7 Kg1 g2 a7 Re8 Kh2 g1B+ Kg2 g3 Nb6 Bh2 a8N Rc8 Na6+ Rc5 Kf3 g2 Rg3 g1B Bh3 Bgd4 Kg2 Bde5 Nc8+ Kd5 Qba1 Ra5 Q1b2 Bc7 Nab6+ Ke5 Bb4 B6e7 Ba3 Reg6 Kf3 Bf6 Kg2 Bfd6 f8R Bb8 Rd8 Bf8 Na7 Bc7 Rc8 Bb8 Rc5+ Kd6 Rg4 Bhe5 Rg3 Bd8 Ne6 Bdc7 Ng7 Bf6 Nac8#
nR5q/P4KbQ/4R1B1/N2rRNk1/1Qr1R2r/2BPB2r/b2N2rp/b4n2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 h5 Kf4 b5 Ke5 c5 f4 b3 a4 h4 g4 c4 d6 b2 a5 h3 f6 Kg6 f7 e6 f5+ Kh7 f6 Kg6 a6 h2 d7 b4 a7 b3 Ra5 c3 Ne2 c2 Qe1 Ne7 Ng3 Rh4 Nf5 Bh6 f8B Na6 f7 Nc7 Bd3 Ned5 Bg7 Ne3 f8R Nf1 Re8 Qf6+ Kd6 e5+ Re6 e4 d8N e3 Nb7 e2 Re5 Bd7 Be4 Rg8 Na5 Na8 d3 Rh3 Nd2 b1R Rg1 b2 Rg3 Ba4 Re3 Bb3 Bh8 Ra1 Kd7 Rg7+ Ke8 b1R Qh4 e1B Re2 Ra4 Re3 Kh7 g6+ Kg8 g5 Ba2 Re2 Rb5 Qg4 Rd5 Qf4 Rgd7 g7 Kh7 g8R Bg7 Rf8 Kg6 Re3 Kh5 g6 Qh4 Rg8 Rd8+ Kf7 Rc8 Re2 Rcc4 Rb8 Bf2 Re1 Bd4 Re2 Ba1 Re1 Bf8 g7 Rab4 g8Q Bg7 Qh6+ Kg4 Qhh7 Kg5 Qf8 Ra4 Qb4 Qh6 Bb2 c1R Bd4 R1c2 Be3+ Kh5 Nf3 Rg2 Nd2 Kg4 Nd4 Qh5+ Bg6 Qh4 Nf5 Qd8 Bd4 Kg5 Bc3 Rch4 R1e4 Qc8 Qb5 Rc4 Qb4 Bh6 Bg7 Qh8 Bf8 Bg7 Bc5 Rf4 Bf2 Rfh4 Be3+
2nn1K2/P4P1r/nn5k/NN1R4/NBp4q/2QQ3N/nQ2Rb1b/Bb1B2r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 e5 Ke4 g5 h4 Kg7 f4 c5 d4 b5 a4 g4 h6+ Kh7 f6 b3 h5 c4 a5 g3 f7 b4 f5 g2 a6 b2 f6 b3 a7 Na6 d6 Bg4 Kd5 e4 d7 e3 Nh3 g1N Na3 b1N Rh2 b2 Nb5 e2 Ra5 e1B Be2 Qc8 d8N Nc5 Qd3+ Ne4 Nc6 Nf3 Bd1 Ne5 Re2 Be7 f8B Bd6 f7 Qd8 Bd2 Qh4 Bb4 Rd8 Bg7 Bf5 Bf6 Bg6 Ke6 Nbc3 d5 b1N Bg7 Bb8 d6 Na4 d7 Ne7 Bf6 Rc8 d8N Nb6 Nb7 Bf2 Nc5 Nbc3 Na4 Na2 Bg7 Rcg8 Bf6 Nf3 Bb2 Nec8 Ba1 Na8 Kd7 Bh2 Ke6 Nfg5+ Kd7 Ncb6+ Ke7 Bf5 Na3 Rg7 Rd5 Nc7 Na5 Na6 Nb5 Nd6 Bb3 Rb8 Bd1 Ndc8+ Kf8 Ne6+ Ke8 Nd8 Kf8 Kh8 h7 Be4 Rb2 Rg1 Re2+ Be5 Ke8 Kg7 h6+ Kg6 h8Q Bh2 h7 Kh6 Kf8 Bf5 Qhd4 Bg6 Q3c3 Bb1 h8Q+ Kg6 Qcd2 Nc6 Kg8 Nd6+ Re8 Rd8 Q4e3 Ndc8 Qhb2 Rd6 Qdd4 Nd8 Kf8 Kh7 Qdc3 Rh6 Ree5 Kg6 Re4 Rh7 Qed3 Kh6 Re2
3RQ2n/P1bp2Nn/bP2B1B1/BRb3bK/bN4rQ/Br3Qq1/5k2/1r5R b - - 0 1 illegal: No proof kernel
KNNbn2k/p2n1Pq1/2r1n3/2n5/RBR3R1/QB1bQbnN/1rP5/R6B b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 Kg7 Ke4 e5 Kd5 h5 b4 h4 f4 h3 g4 d6 b6 h2 b7 e4 b5 e3 f6+ Kh7 g6+ Kh6 f7 Kg7 b6 e2 f5 e1N g5 d3 Qf3 d2 Ra4 d1B Bg2 Bd7 Ba3 Qe7 Nc3 Bb5 Ne4 Bd3 Bb4 Nd7 Kc6 d5 b8R d4 Kb7 Rh6 f6+ Kh8 Qe3 Bf3 Rc8 Bg7 f8Q Rb8+ Kc7 Qf7 Nh3 Qe7 Rf1 h1N b7 Ng3 Bh1 Ng2 Nd6 Nf4 Rfa1 Qf7 Nc4 Qe7 Nb6 Qf7 Qfe7 Bf8 Qc5 Qg7 Qc3 Be7 Qa3 Bh5 Kc6 Ne6 Rc7 Bd8 Nc8 Ra8 b8N Bhe2 Kb7 Bg4 Rc4 Bf3+ Nc6 Rb8+ Ka6 Rb5 Nb8 Rb7 Ba5 Rb2 Bb4 Bfe2 Kb7 Bf3+ Nc6 Bf5 Ka8 d3 Qd4 d2 Qde3 Be2 Nb8 d1N Qa2 Nf2 Qab3 Qe7 Qa3 Nfe4 g7+ Kh7 Bg2 N4c5 Bh1 Qf7 Qg1 Bfd3 Qe3 Ne7 g8B+ Kh8 g6 Qg7 Bf7 Nef5 Bg8 Nd6 Bf7 Nd4 Be6 Bh5 f7 Ne8 Bed5 Qf6 Be6 Bf3+ Bd5 Nde6 g7+ Kh7 g8R Qd4 Rg7+ Kh8 Rg4 Qg7 Bb7 Nef8 Bd5 Rc6 Rc3 Nfe6 Bb3 Qf6 Rcc4 Qd4 Na6 Qg7 Nb8
2Q1b1r1/1nb5/1R2rQ2/rN1B1R1b/3KpNk1/4BbnB/qQ1PPRB1/1n6 b - - 0 1 illegal: No possible last move
3n1qbR/1k1r1rR1/1B1n3Q/4K1Q1/1N1P1N2/1B1P2r1/1rbB2pn/3Rb1RQ b - - 0 1 legal: proof: g4 d5 f4 b5 a4 e5 axb5 exf4 c3 h5 gxh5 d4 cxd4 Bg4 Ra3 Bd7 Ra1 Bc8 Kf2 Kd7 Kf3 f5 h4 a5 b4 c5 e4 Kc7 h6 g5 h7 g4+ Kg2 a4 b6+ Kb7 e5 a3 b5 a2 h5 f3+ Kg3 c4 Kf4 g3 e6 f2 h6 c3 e7 g2 e8Q c2 Qee1 Bb4 Qe3 Ne7 Ke5 f4 Bc4 f1N Na3 f3 Nh3 f2 Bb3 Nf5 Qg5 Rg8 h8R Qf8 h7 Nh2 Nf4 f1B Rg1 Bc4 d3 Bd7 Be3 c1R Nc2 Rb1 Bd2 Ra7 Qc1 Ba5 Nb4 Rb2 Qf1 Be8 Rd1 a1R Qe1 Rg6 Qeh4 Nd6 Qhh6 Rab1 Rg8 Bd7 Rg7 Bg8 h8Q Rc1 Q8h7 Rc7 Qh8 Bg4 Q8h7 Rf7 Qh8 Ka8 Q8h7 Rad7 b7+ Ka7 Qh8 Nf1 Qh1 Nh2 Qhh6 Be2 Qgh5 Rg3 Q5g5 Na6 b8R Nc5 Rd8 Ne6 Re8 Nd8 b6+ Kb8 b7 Kc7 b8B+ Kb7 Bc7 Bh5 Rde1 Bd1 Bb6 Bc2 Rd1 Rb1 Rh7 Rb2 Re7 Rf6 Reg7 Rff7 Na2 Bc3 Rh8 Bb4 Be3 Bc3 Nb4 Be1 Bd2
r3R3/NB1BN2n/b1N4r/3r1Prn/N1k5/Q1pbR1BK/P7/Q1q1nQb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kd7 g4 Kd6 f4 h5 Kf2 b5 Kg2 c5 f6 e5 f5 b3 g6 b4 g5 c4 f7 h4 g7 b2 g6 e4 Nc3 b1N Nge2 e3 Rh3 b3 Na4 b2 Nec3 e2 Re3 e1R Kh3 Ra5 Bg2 Nf6 g8B Nd2 g7 Rg1 Qf1 b1B Bb2 Bd3 Rae1 Be7 f8Q Nh5 Be6 Nf3 g8N Ba6 Bd7 Qc7 Qg7 Bg5 Ne7 Bf4 Bc1 Bh2 R1e2 Rf8 Bd2 Rc5 Be1 Ra5 Bf2 Ne1 Bf3 Rg5 Qh8 Nc6 Bg3+ Ne5 Bh1 Qc5 Be4 Bg1 Bg2 Kc7 Nb5+ Kb7 d6+ N5f3 d5 Ra8 Qd4 c3 Na7 Qa3 Qc5 Qc1 Qa3 Rb5 Be6 Ra5 d7 Rc5 d6 Rd5 Nc5+ Kb6 d8N Bdb5 d7 Bd3 Na4+ Ka5 Nac6+ Kb5 Na7+ Kc4 Bh1 Rg7 Ndc6 Ng5+ Kg4 h3 d8Q h2 Bd7 Nh7+ Kh3 Rg8 Qb8 Rg5 Qbb2 Rg6 Bf3 Rh6 Qa1 h1R+ Kg4 Rh2 Be4 Rg2 Kh3 Bb7 Rb2 Ba6 Rb8 Re6 Re8 Rh6 Be5 Rgg6 Bg3 Rg5 Nd4 Re5 Bb7 Rd5 Ndc6
QnNN1Q2/RQ2bqkn/4b1bn/1K1BP2P/rN1r2n1/5B1R/1N3p2/B5r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 g5 Kd3 d5 h4 f5 e4 Kf7 c4 a5 b4 a4 h6 a3 h5 a2 b6 f4 b7 f3 h7 g4 c5 f2 c6 g3 b5 g2 b6 Na6 b8Q Qf6 c7 Qf5 e6+ Kf6 e7 Qe5 e8B Nh6 b7 Qe7 e5+ Kg7 Nh3 g1R Nc3 Qf7 Ng5 Be7 Be2 Bd7 c8N Be6 Bc6 Rd8 Qa4 Rd7 Qc7 Nb8 Rh3 Ra6 Qb5 Ra4 Nd1 Rd8 Bb2 Rd7 Rb1 a1N Bf3 Nc2 Ba1 Ne3 Nb2 Neg4 Qd8 Rd6 Qe8 Nf6 Rc1 Rd8 Rc3 Rd6 Ra3 Rd8 Qa6 Rd6 Qa8 Rd7 h8N Nh7 Ng6 Rd8 Nf4 Rd6 Kc2 d3+ Kb3 d2 Nfd3 d1N Nb4 d4+ Bcd5 d3 Kc4 d2 Kb5 Ne3 Ra2 d1B Ra3 Qg8 Nf7 Neg4 Nd8 Bc2 Ra2 Qf7 Ra3 Na6 b8Q Bg6 Qbb7 Nb8 Nbc6 Rd4 Ra7 Ra4 Nb4 Rd7 Bc4 Rd2 Bcd5 Rd4 Qf8+
N2k2r1/2bb2b1/b1Q1n2n/B2pNRP1/KR2rQ2/1B3Q2/P1r1q1NN/3R2n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 d5 g4 b5 f4 h5 c4 e5 Kc2 e4 Kb3 h4 c6 e3 c5 h3 f6 h2 f5 e2 g6 e1B g5 Bd6 c7 Ra4 g7 Be5 f7+ Kd7 f8R Bf4 f6 Bh4 f7 Nh6 g8Q Na6 Nf3 Bf2 Bd2 Qe8 Nh4 Bd4 Bc4 Qe2 Ng2 Bg7 c6+ Ke7 Bc3 Bd7 c8Q Nc7 Nd2 Ne6 Nf3 Bc7 Qh7 Rg8 Qe4 Bf4 Rf1 h1N c7 Nf2 Nh2 Nh3 Rb1 Ng1 Qd2 Bg3 Rfd1 Bd6 Qf3 Bf4 Kb2 b3 Qa8 Rb4 Ka3 b2 Bb3 Re4 Qc6 b4+ Ka4 Bfe5 Qdf4 Bd6 Ra1 b1R Rd4 Rb2 Rad1 Rc2 Bd2 Be8 c8N+ Kd8 Nb6 Bde5 Na8 Bc7 Bc4 b3 Ba5 b2 Bb3 b1B Rc4 Ke7 Rb4 Bd7 Rc8 Rc5 f8N Bd3 Rb8 Rcc4 Rb6 Rc3 Ng6+ Kd8 Ne5 Ba6 Rb8+ Ke7 Rf8 Rc2 Rf7+ Kd8 Rf5
KnNR4/1N4BN/bB3P2/1Q1PkB1p/2b1rn1r/1RQ5/4Q1n1/r1bq1N1b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 c4 a5 b4 d6 b2 Kd5 e4 d7 b3 a6 e3 g6+ Kf6 g5+ Ke7 a7 c3 g7 e2 g6 Kf6 Bh3 e1N Ra3 c2 Qe2 Ng2 Be3 c1R Nf3 Bb4 Rd1 Rc4 Ng5 Nh6 g8Q Ba6 g7 Bb5 Nd2 b1B Qe8 b2 g8Q Rc3 Nf1 Rc1 Rb3 Qb6 d8N Be7 Nb7 Ba6 Q8b5 Ba2 Qc8 b1B Qc3 Ng4 Rd2 Ne5 Nh7+ Kg7 Rd3 Ng6 f6+ Kf7 f5 Ba3 Rd2 Re8 Rd1 Re4 Bg4 Kg8 f7+ Kg7 f8B+ Kf7 f6 Qd8+ Bd7 Rh4 Rd2 Re1 Bg7 Bc1 Kc5 Bd3 Bf5 N6f4 Bg1 Qd5+ Kb6 Bc4 Rd3 Bb1 Rd1 Be4 Rd3 Nc6 Bf2 Re8 a8N Nb8 Ka7 Bf3 Nb6 Re4 Nc8 Qd7 Bh3 Qg4 Ka8 Ke6 d5+ Kf5 Bb6 Rd1 Re3 Re1 Qcb4 Ke5 Q4a5 Bb2 Qa3 Ra1 Qab4 Bc1 Q4c5 Qg3 Bf5 Qe1 Rec3 Qd1 Qa3 Bd3 Rc7 Bc4 Rd7 Ne1 Qaa5 Bh1 Rd8 Neg2 Qc3+
B4kNb/3Q3r/1Q1PbNq1/n3NR2/2QK4/nP1Bn1b1/p2r2r1/1NR1B1r1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 h5 Kd3 c5 g4 a5 f4 e5 b3 h3 g5 h2 g6 a4 b6 a3 d6 h4 f6 h3 g7 a2 b7 Kf7 f5 Qe8 d7 Nh6 d8Q Nc6 b8Q Be6 Qbb6 Ng4 Qc8 Rh7 Nf3 Bd6 g8B+ Kf8 f7 c4+ Kc3 e4 d4 e3 d5 e2 Ne5 e1N Bd2 Rb8 Bd3 Ne3 Rf1 Na5 Kd4 c3 Qc4 c2 Rf4 c1B Qg4 Bb4 d6 h1R Bc3 h2 Bd2 N1g2 Be1 Rg1 Qh3 h1R Rf2 Kg7 f8N Rh2 Nfd7 Qg6 Nf6 Kf8 Bf7 Rc8 Ng8 Rc6 f6 Bb2+ Bc3 Rc5 Rf5 Ne1 Be8 Rf2 f7 Rfg2 Bc6 Rb5 Ba8 N1c2+ Ke4 Rc5 Be1 Na3 Qg4 Rd5 Qh3 Kg7 f8N B4c3 Nfd7 Bd2 Bf2 Be1 Ndf6 Kf8 Bh4 Bg3 Qg4 Bf4 Be1 Bg3 Qh3 Rh8 Qh7 Bc3 Qd7 Rh7 Nd2 Bd4 Rc1 Ba1 Nb1 Bc3 Bc2 Rdd2 Bd3 Rgh2 Nd5+ Rf7 Nf3 Bh8 Ne5 Rhg2 Ndf6 Rh7 Kd4
B1R2rbQ/1rbq1N2/pBR2n2/Q1Rn1bnk/8/rBR1P3/1P2N3/2K2bQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 f5 d4 Kf7 Kd2 Kg6 b6 c5 d6 h5 d5 f3 b7 a6 d7 h4 d6 h3 Bg2 f2 Na3 f1B Nc4 h2 Ra3 f4 Rc3 Qc7 d8R f3 d7 f2 Nd6 c4 Nf7 Nc6 b8R Bd6 Rb6 Ne5 Rc6 Ra7 e3 Rb7 Ne2 Nf6 Re8 Rh5 d8Q Qd7 Qa5 Nf3+ Kc2 Bb8 Bd2 Bc7 Kc1 Rh4 Rg1 h1B Re5 Rh8 Rec5 Rf8 Qe1 Qe8 Qd1 Bf5 Be1 Qd7 Bd2 Kg7 g6 Ng5 Bd5 Bhe4 Rh1 Be6 Rh8 B4f5 Bg2 Nd5 Be1 Kf6 g7 Kg6 g8B Nf6 Qd6 Bd5 Qh2 Bde6 Qg1 Bd5 Ra3 c3 Bh1 c2 Rac3 Nh7 g5 Kh5 g6 Bb3 Nh6 Ng5 g7 Ba2 Bb3 Nd5 Kd2 c1R g8Q Ra1 Qg7 Rf6 Rc8 Rf8 Bc4 Bb3 Qh8 Ra3 Kc1 Nf6 Bd3 Bg8 Bc4 Nd5 Ba2 Bg2 Bc4 f1N Bb3 Nd2 Bg3 Nde4 Nf7+ Bfh7 Bd6 Bf1 Be7 Nef6 Bd8 Bh2 Bb6 Bc7 Bf3+ Ng4 Qg2 Ra7 Qf2 Nb4 Bh1 Nf6 Bg2 Be5 Re6 Bc7 Bb7 Nbd5 Ba8 Rb7 Rec6 Nfe4 Qg1 Nef6 Nh6 Bf5 Nf7+
n2NB3/N1nR1R1P/2nrk1P1/r1Qr1b1b/4q1Qb/BK1B2N1/2B2Qp1/6b1 b - - 0 1 illegal: No proof kernel
1b2Qr1R/4nk1p/QQr1R1bK/3nb2N/1B2nn1q/2RP1P2/r7/4NQNB b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 a5 Kf3 e5 Kg4 c5 Kh5 h3 b4 h2 g4 c4 b6 e4 d3 e3 f3 c3 b5 c2 d6 e2 f6 e1R f7+ Kd7 b7 Ke6 g5 a4 d7 a3 g6 a2 b6 Ra4 g7 Kf6 Na3 Re7 Bd2 c1N Nc2 Rc4 Ne1 Ke6 Bg2 Ne2 Bb4 Na6 b8Q Rc6 b7 Nc7 Rc1 a1B Qa7 Be5 b8R Nd5 Qa6 Nef4+ Kg5 Bb7 Rc3 Ba8 Qe2 Bb7 Qf1 Re8+ Kg4 Bfd6 f8Q Nge7 Kg5 Bc7 Rc8 Bb8 g8N Ba8 Qh6+ Kf7 Nf6 Ref8 Nh5 Bb7 Qd6 Rhg8+ Kh6 Rg4 Bh3 Rg2 Qb6 Ra2 Bg2 Neg6 Qa6 Qh4 d8Q Nge7 Qdb6 Ba8 Re8 Bb7 Qab5 Bc8 Q6a6 Bf5 Rc8 Rc7 Qdb6 Bg6 Qe8+ Kg8 Ne2 Rc6 Rg1 h1N Rd8 Nf2 Bh1 Rd2 Rg4 Rb2 Ng1 Ra2 Rd6 Ne4 Re6 Qf2 Rg2 Qh4 Rgc2 Rd6 Rc8 Rc6 Rc3 Ra4 Ne2 Ra2 Qd7 Kf7 Ng1 Rg8 Re8 Rg7 Rh8 Rg8 Qdc8 Rf8 Qe8+
1N1b1b2/1r2Qqpn/R1NB1b2/B1r2b2/7k/K2B3P/1NPQ1RnR/1rR2n2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 Kf6 b4 a5 b6 d5 b7 e5 h3 a4 h6 d3 Kc3 a3 Kb3 d4 b5 d2 b6 d3 h7 a2 Qh5 d1R Ne2 d2 Nd4 e4 Nc6 e3 Rh2 e2 Nc3 e1B Qe2 Ra7 Na4 Qe8 Nb2 Nd7 b8N Ne5 b7 Ng6 Qg2 Bh4 Bd3 Re1 Qf2 d1N Bd2 Ra5 Rc1 Rc5 Ba5 a1B Ka3 Ne3 Qe2 Nf1 Qd2 Kf7 f6 Bf5 Kb4 Ke6 f7 Nf6 Ka3 Rg8 h8R Nh7 Qd1 Kf6 Qd2 Be7 f8Q+ Qf7 Qe8 Bf8 Qd7 Bg5 Qc7 Nh4 Qd7 Kg6 Qe7 Nf6 Rh7 Ng2 Rh4 Nh7 Rg4 Be4 f5+ Kh5 f6 Bf5 Rb4 Rd1 Rb6 Kh4 Ra6 Rh8 Nd7 Rg8 b8B Re1 Bd6 Rh8 Qd8 Re7 Ndb8 Rb7 Qe7 Rg8 Nc4 Bc3 Bf4 Be5 Nb2 Bc7 Be5 Bd8 Bd6 Be6 Bg6 Bc7 Bc3 Rb4 Qd8 Be7 Nd7 Qe8 Nd3 Rb1 Ba5 Rf8 Bf5 Rf7 Ndb8 Qd7 Qf8 Bcd8 Nb2 Qe8 Bd3 Bg4 Be5 Bd6 Bf4 Rb7 f7 Qd7 Qe8 Qc7 f8R Bd7 Rf5 Bf8 Qee2 Bgf6 Bd6 Bc8 Rf3 Bf5 Rf2 Qf7 Qe7
6n1/q1B2P1N/3bb1rp/2QQ1Q2/k4Q1P/1r2n1R1/5NRK/bNr1BrnR b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g6 f6 Qd7 f5 Nc6 Bd3 Qd8 f7+ Kd7 f6 Nb8 Bf5+ gxf5 Kf2 e5 Kg3 a5 d4 c5 b4 h6 h4 e4 d6 c4 d5 a4 b6 c3 b5 f4+ Kh2 c2 g4 e3 g5 f3 g6 e2 b7 e1B b6 f2 g7 f1R Qg4+ Rf5 Bd2 c1R Ra2 a3 Nh3 Nc6 b8Q Ra6 b7 Ne5 Qa7 Qc7 b8Q Bf2 Qab6 Bd4 Qc5 Qa7 Be1 Ba1 Rg2 a2 Nf2 Rb6 Qh5 Rb3 Qbb4 Rg5 Qf4 Rg6 Rg3 Bb2 Qhg5 a1N Rg2 Nc2 Qgf5+ Kd8 d7 Ne3 Rg3 Bd6 f8N Ba1 f7 Nf3+ Kh3 Rd1 Nh7 Ng1+ Kh2 Rc1 Bd2 Rf1 Be1 Nf6 g8R+ Ke7 Rg7 Ng8 Qfc2 Kd8 Qd3 Ke7 d8B+ Kd7 Bda5 Ke7 Bc7 Be6 Qdf5 Kd7 Nd1 Nf6 Rg2 Rc8 Nf2 Ng8 Rg3 Bf8 d6 Be7 Qcd4 Kc6 d7 Bf8 d8Q Bd6 Q5e4+ Kb5 Qc2 Rb4 Qcf5+ Ka4 Qdd5 Rb8 Qc5 Rc4 Qdg5 Rb3 Qfd5 Nd1 Qge5 Ne3 Qff5 Rc1 Rg2 Rf6 R7g3 Rg6 Qef4+
2rb3b/1r1PBBnq/k1rpb3/5N2/5QRQ/N2R2n1/PRnK2B1/QB4n1 b - - 0 1 illegal: No proof kernel
2n5/1Rp3n1/1NPQbq2/NK1P1N2/R1r1N1B1/Q2r2BR/1nbk2n1/r2Bb3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 a4 Bg4 axb5 Bc8 e4 e5 fxe5 dxe4 Ke2 Kd7 h4 Ke6 d4 Kf5 b4 a5 c4 g5 b6 f6 h6 e3 Kd3 Kf4 h7 f5 h5 g4 b5 a4 e6 g3 c5 g2 Kc4 a3 e7 a2 e8B Ra6 b7 Rh6 b6 Be6+ Kb5 Bd6 Be2 Nd7 b8N Ndf6 b7 Ne7 Nd7 Nc8 Nf3 g1N b8N Nh3 Nb6 Nf2 Rh3 Nd3 Nbd2 Nb2 Bd7 Ne8 Nc6 Qf6 Na5 Ng7 c6 Rd8 h8R Bb4 Ne4 Be1 Nh4 Rg6 h6 Rg4 Rb1 a1R h7 Na4 Ba3 Nb2 Bf3 e2 Bd6+ Ke3 Bg3 f4 Qc1+ Kd3 Nf5 Rh4 Bg4 f3 Qe3+ Kc2 Qa3 f2 Rf8 f1B h8Q Bg2 Qh6 Bf3 Be8 Bg2 Beh5 Rd5+ Nc5 Be4 Qf4 Rd7 Qd6 Kd2 Rg8 Bc2 Re8 Bg8 Re4 Be6 Rf4 Bf2 Re4 e1N Bd1 Rd8 Bhg4 Ng2 Rf4 Be1 d5 Rdh8 Ra4 R8h5 Bgf3 Rc4 Bg4 Rh4 Bgf3 Rhd4 Bg4 Nd3 Rb3 Nb2 Ne4+ Kc1 Na8 Nh5 Ka6 Ng7 Rb7 Rd2 Kb5 Rd3 Nf2 Kd2 Nb6 Qh4 Na8 Qh6 Nb6 Qf6 Ne4+
3B4/P2Qbpn1/1RKP2N1/5B2/Q3rr2/1n1NbRb1/nBQ1N1k1/2r1B1qb b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 g5 Kd4 b5 h4 b3 a4 g4 e4 g3 a5 g2 e6+ Kd6 e5+ Ke7 Kc5 b2 d4 b4 h6 b3 h5 c6 h7 Nf6 h6 Nh5 a6 Ng7 a7 Bb7 Ne2 g1B Ra3 Bf2 Bd2 Bg3 Nbc3 b1R Nf4 b2 Bd3 Rc1 Bf5 b1N Be1 Nd2 Qc2 Qd7 Nd3 Nb3+ Kb6 c5 Ne2 c4 Rh4 Rg8 h8N c3 h7 Na6 Rh6 Nb4 Rg6 Na2 d6+ Ke8 e7 Bh1 d5 Qe6 Rh6 Kd7 Ng6 Re8 Bh3 Qg4 h8B Rc8 Kb7 Rc4 Kb6 Rf4 e6+ Kc8 Kb5 Kb7 e8Q Be7 d7 Rf8 Qd8 Re8 Qa5 Qg5 Qa4 Kc7 d8B+ Kd6 Bf5 Qg4 Qd1 c2 Qd2 Rb1 Kb6 c1B Qc2 Be3+ Kb7 Nh5 Bg7 Rc1 Bb2 Ng7 Bda5 Rc8 Bd8 Rc5 Kb6 Rcc4+ Kb5 Rcd4 Kb6 Rde4+ Kb7 Bf6 e7 Qg5 e8Q Be7 Rh5 Bh2 Rh3 Qg1 Rf3 Bg3 Nf2 Rc4 Qed7+ Kc5 d6 Kd5 Nd3 Rce4 Kc7 Ra1 Qb4 Rc1 Ra6 Rd4 Qba4 Rb4 Rb6 Rbd4 Bh3 Ke4 Rf2 Rb4 Kc6 Rd4 Rg2 Kf3 Bf5 Rde4 Rh2 Bgh4 Rh3+ Kg2 Rf3 Bhf2 Qc5 Bg3 Qc2
5K2/q4brb/RN1nr3/BB1qpBP1/3R4/R4b2/3N1bnP/2QBkbNQ b - - 0 1 illegal: No proof kernel
K1Q1Q3/1B6/RRn3NP/5r1R/r1b2q1p/1kbP1q2/R3rBNr/n2N1rB1 b - - 0 1 illegal: No possible last move
2n2q1N/QR1B1rk1/1Nn4p/P1R3q1/3bQB2/1rR2b2/Q1K2n1P/2n1BQ1n b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 f4 g5 fxg5 Nh6 cxb5 Ng8 b4 axb4 Kd2 f5 a4 Kf7 e4 d5 g4 c5 b6 h6 e6+ Kg7 g6 b3 g5 d4 b7 d3 e7 c4 e8R f4 e5 f3 a5 b2 e6 f2 e7 Bg4 Nc3 b1Q Nd5 Ra7 Ne2 Be6 Bh3 Nf6 Qf1 Ng8 Ra3 Bf7 Bd7 Qbb6 Nef4 Qc8 Rc3 Qf6 Nb6 Nc6 b8B Bd5 Bc7 Qb8 Rc8 Bf3 e8Q Bc5 Qe4 Nge7 Ba3 Rg8 Bb4 Bd4 Kc1 d2+ Kc2 d1N Bcd6 Nd8 Rc5 Nc8 Be5 Nc6 Bc7 Kf8 g7+ Kf7 Ng6 Qe7 Ra3 c3 Bf4 Qbe5 Rg1 Qf8 Rg3 Rb7 Rb3 Rh8 Rb1 Rh7 Nh8+ Kg8 Kb3 c2 Be1 c1N+ Kc2 Bh1 Rgc3 Bf3 Na4 Rb8 Rb7 Qee7 Nb6 Qe5 Qa6 f1N Qa7 Ng3 Ng6 Kf7 Nh8+ Ke7 g8Q Nh1 g6 Kf6 g7 Ndf2 Qa2 Qg5 g8Q Rf7 Rc7 Rb7 Qgh7 Rb8 Qhf5+ Kg7 Qh3 Rb7 Qf1 Rb8 Na8 Rb5 Rb7 Rb3 Nb6
br2b1qR/QbkB4/B4bPB/K5n1/2NN1bP1/1Qp1qQ2/4r1RR/B5n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 c5 Kc3 h5 e4 a5 b4 f5 g4 h4 e5 f3 d6 c4 b6 h3 d5 h2 b5 f2 g6 f4 b7 a4 Kb4 a3 b6 a2 Na3 f3 Bf4 Bh6 Ne2 Nf6 Nd4 Qg8 e6+ Kd8 d7 Nh7 Rb1 a1B Rb2 Ng5 Bd3 f1B Rg2 f2 Qf3 Bc3+ Kb5 Nc6 b8Q Ne5 b7 Be2 Qa7 f1Q e7+ Kc7 d8R Qc1 e8B Rb8 Bd7 Qe3 Ka4 Ba1 Ka5 Bd1 Be2 Ba4 Rf8 Rh7 Re8 Re7 Bf1 Qg7 Rh8 Qg8 d6+ Kd8 Bf5 Be8 d7 Kc7 d8B+ Kd6 Rhg1 h1B Bd7 Re6 Be7+ Kc7 Rh2 Bb2 Rgg2 Ba1 Nf5 Bd4 Bf8 c3 Ba6 Re7 Nc4 Re6 Ba3 Re7 Bb2 Re6 Qd5 Re7 Ncd6 Nef3 Ba1 Ng1 Nc4+ Be5 Qf7 Bg7 Qd5 Bf6 Nd4 Re6 Qf3 Re7 Bg3 Bf4 Be1 Qd3 Bd2 Re2 Bc1 Qe4 Ba3 Qee6 Bf8 Qe3 Bh6 Bg7 Qg3 Ra8 Rf2 Bf6 b8Q+ Kd8 Qb2 Rb8 Qb4 Ba8 Qb3 Bcb7 Rfg2 Kc7 Qf3
4r1R1/1bNk1K2/PQ3R1b/5n2/N3pq2/1RBnNr1Q/1Bnn1RP1/q2B3n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 b5 Kd3 h5 Ke4 c5 Ke5 h4 d4 h3 a4 h2 f4 e6 g6 b3 a5 c4 g7 b2 a6 c3 f6 c2 f7+ Ke7 f5 b4 d6+ Kd7 d5 b3 f6 Be7 f8N+ Ke8 d7+ Kf7 d6 Nh6 g8R Ra7 Nd2 b1N Ra3 b2 Rb3 Nc3 Qf3 b1Q Bb2 c1N Qh3 Qc7 d8Q Ra8 Ne2 Qa1 Nc4 Nf5 Ne3 Ne4 Nc3 Bb7 Be2 Nd2 Rf1 h1N Na4 Qc4 Qa5 Ke8 Bd1 Rh4 Rf3 Rf4 Rf2 Rf3 Qb6 Qc7 f7+ Kd8 Nf1 Bg5 Ne3 Bh6 Kf6 e5 Ne6+ Kd7 f8R e4 Kf7 Nc6 Bc3 Qb8 Nc7 Nd3 Bb2 Qd8 Bc3 Qh4 Bb2 Re8 Bc3 Kc8 Bb2 Ncb4 d7+ Kb8 d8B Kc8 Be7 Qf4 Bef6 Nc2 Bfc3 Kd8 Rg6 Kc8 Rf6 Kd7 Rg8
K5BB/N6P/Q1N2b1q/1B1bb2n/NkP1R2n/q3rb2/pr3N1R/1Q2R1b1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 d5 Kd3 Kd7 Kd4 g5 h4 a5 b4 e6 f4 g3 h5 a4 c6+ Kd6 c7 g4 h6 g2 f6 g3 f7 a3 b6 a2 h7 Qe7 b5 Bd7 c8B Bc6 b7 Ra3 f5 Nf6 b6 Re3 Bb2 Nbd7 b8N Nh5 f6 Bg7 f8Q Ne5 f7 Bf6 Nh3 g1B b7 g2 Qh6 Bh2 f8R g1B Re8 Rg8 c3 Rg2 Nf2 Qf8 Qg6 Qh6 Bb5 Bg3 c4 B3h2 Nd3 Bf4 Bc3 Rb2 Rh2 Bg3 Qa4 Bf4 Qe4 Bg3 Qa6 Ng6+ Ne5 Nh4 Qg6 Kc7 Kc5 d4 Ng4 e5 Be6 d3 Bg8 d2 Nf2 Bd5 Nc6 d1B b8N e4 Na7 Bge5 Nbc6 Bf3 Bd4 Kd7 Kb6 Kd6 Kb7 Re1 Rb8 e3 Re8 e2 Bc3 Kc5 Ka8 Rd1 Qc2 e1Q Qc1 Rd3 Re7 Bd6 Re4 Re3 Be5 Qd1 Nc3 Qb3 Qf1 Qa3 Re1 Bd8 Bh8 Bf6 Qd3 Bde5 Qb1 Be6 Na5 Kb4 Na4 Bd5+ N5c6+
k3bb2/2qr3P/K1BPrb1B/1R5n/RQ1N2q1/4b1p1/2QnQ1RN/1N2b1N1 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 h5 g4 e5 gxh5 b5 axb5 Bd7 fxe5 Bc8 d4 Kd7 Kd2 a5 Kc3 f5 e4 g5 h4 c5 b4 Kc7 d5 Kb7 h6 g4 d6 f4 h5 a4 e6 g3 e5 a3 e7 f3 e8Q a2 h7 f2 b6 Ne7 b5 Qc7 h6 Bh3 e6 Nf5 e7 Ra7 Qc2 Nd7 Rh2 Nh4 Bg2+ Nf3 Bg5 Rg8 h8Q f1Q h7 Qd1 Bh6 Rg6 Qd4 Nf6 Bh1 Bg4 Rg2 Nh5 Qdd2 Bc8 Qe1 Kb8 b7 Nd2 Qe2 Rf6 Qd7 Rg6 Qdg4 Re6 e8N Bd7 Nf6 Be8 Qd4 Qg7 Ng4 Qc7 Qef2 Qe2 Nh2 Qg4 Qe2 Nf1 Kb2 c3+ Kb3 c4+ Kb4 Nd2 Qde4 Ra5 Qf4 Ka7 b8N Ka8 b6 Ra7 Nc6 Rb7 Qc1 c2 Ka5 c3 Qb4 Ra7+ Kb5 Rb7 Qcd1 c1B Ka6 c2 Nd4 Bb2 Qc1 Bc3 Qcd1 c1B Qda4 Qd8 Qc2 Rd7 b7+ Kb8 Kb5 Ka7 b8R Qc7 Rb7+ Ka8 Na3 Qg7 Ka6 Qg4 Rb1 a1B Rb3 Ree7 Nb1 Re6 Ra3 Bab2 Nb5 Bf6 Ra4 Bbc3 Nd4 Ne4 Rf2 Be1 Bf3 Bcg5 Rg2 Nd2 Bc6 Be3 Rb5+
5K2/brn3Pb/N1b2R2/1pQ2NBB/4kRP1/1N1qBr2/1nq4Q/bR1Bb3 b - - 0 1 illegal: No possible last move
n1b1K2R/B1R1b1Pb/1n1qBp2/P2B1N1Q/7b/1qQrN3/rk1NbN2/4R3 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Ke3 c5 Ke4 h5 Kf5 b5 e4 h4 a4 b3 g4 b4 d4 b2 d6 Kc6+ e6 b3 g6 c4 g5 c3 d5+ Kc5 a5 Kb4 e5 f6 g7 c2 Kg6 h3 Kf7 h2 e7 Bg4 e8N Bh5+ g6 Qc7+ d7 Nc6 e6 Nge7 g8B Na7 d8R Rc8 d6 Be2 g7 Rh7 d7 Qd6 Bg2 Nd5 e7 Nb5 Be3 c1B Nc7 Nb6 e8N Rh3 Nd2 Kc3 Bd5 b1B Bc5 Rb8 Rc8 b2 d8Q Rd3 Nh3 Be7 Nf2 Rb7 Re1 h1B Ra8 Bg2 Qc8 Bh3 Ra7 Bf5 Rh1 Bc2 Rh8 b1Q Be6 Qb3 Nd5+ Kb2 Ne3 Rd7 Rc7 Bfg4 Qh1 Rd8 Qh5 Bh3 Rb7 Nc7 Bd5 Nca8 Rc7 Nc4 Ba7 Ncb6 Qb7 Bc8 Qc6 Rc3 Qc4 Bh7 Qb4 Rd3 Be6 Qd5 Nd6 Qc6 Ndf5 Qd6 Ndf1 Rd7 Ke8 Bd2 Bd5 Be1 Bge6 Rd2 Rc6 Rd3 Nd2 Rb7 Rc7 Rb8 Nfg4 Bh4 Re1 Rb7 Rc6 Rd7 Nf2 Rc7 Rcc1 Rc4 Qc5 Ra4 Qb4 Ra3 Rc7 Ra2 Qc3+
kQ1Q3b/4K1PP/rQ3R2/2Rr1rnn/4N3/1br2pBB/B4Qq1/1qRN1r2 b - - 0 1 illegal: No possible last move, all moves rejected
1Rn1K2b/N1BrPQ2/1R1B1r1P/1N3bn1/pn1N1q2/n1B3kQ/4Bq1R/7n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 b4 c5 d4 f5 e4 g5 d6 a5 h6 c4 b6 f3 d7 f4 Ke6 f2 Kf7 f3 e5 c3 d5 c2 b7 a4 d6 g4 b5 g3 h7 g2 b6 Na6 b8R Qf6+ Ke8 Qg7 d8B+ Kg4 h4 Qf6 d7 Nb4 e6 Kg3 h5 Bg7 b7 Ra7 Be2 f1N Bb2 c1Q Na3 f2 Nf3 g1N Rh2 Nd2 Nb5 f1N Rb1 Nh3 Qb3 Ng5 Bc3 Nc4 Nfd4 Na3 Bc7+ Qcf4 d8N Ra6 h6 Rd6 Qa2 Rd7 N8c6 Qf5 Nca7 Qc5 Nb3 Qf2 N3d4 Be5 Qd5 Bg7 Qf5 Ne7+ Qf8 Rg8 h8Q Bf6 Rb2 Rg6 Qf7 Bg7 Qh7 Rf6 Qhg6 Bh8 Qh5 Ned5 e7 Nb6 Kf8 Rd5 Ke8 Bf5 Rd8 Rdd6 b8B Rd7 Bd6 Nc8 Bbc7 Ne3 Rb3 Ng4 Rb2 Qf3 Rb1 Nf2 Rb3 Nh1 Rb1 Nb6 Rb8 Nc8 Rb2 Qg2 Qh3+ Kf2 Qhh5 Nc6 Rb4 Kg3 Rb3 Nb1 Na3 Qf2 R3b6 Nb4 N3b5 Na3 Qh3+
R2BbbkN/4P1P1/pR1n4/Q4r2/rN2BN2/2n1bqb1/bQN4q/K2R2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 e4 h5 b4 f5 d4 Kf7 Kd2 c5 Kc3 f4 Kb2 a6 g4 f3 d5 h4 g6+ Kg7 d6 h3 b6 f2 b7 h2 e6 Be7 g5 Qe8 d7 Nh6 d8Q Nf5 e5 Bd7 b5 Nh6 b6 Ng4 Ne2 Nf6 Nf4 Nd5 Bd3 f1B Be4 Qf7 Na3 Nc6 b8N Na5 b7 Rh4 Rb1 c3+ Ka1 c2 Nc6 c4 b8Q c3 Qb2 Nb7 Nb4 Bc4 Qg1 Bf8 e7 Ba2 e8R Nd6 e6 Kg8 g7 Rc8 e7 Rc5 Be3 c1B Qa5 c2 Ra8 Be8 Bf2 Rb5 Bb6 Be3 Bd8 c1B Nac2 Bcd2 Rd1 Nc3 Rb1 Rf5 Rd1 Kh7 g8N Be1 Nh6 Bg3 g6+ Kh8 g7+ Kh7 Ng4 Kg8 Ne5 Qh5 Nf7 Qf3 Nh8 Rg4 Qf1 Rh4 Rg1 h1Q Rg2 Qh2 Qg1 Bgf2 Rg6 Bg3 Re6 Nc8 Rb6 Nd6 Ng2 Rhf4 Bd3 Rd4 Be4 Rc4 Nf4 Rd4 Nc6 Ra4 N6b4
b4q2/RP1Nk3/1bBR1R1B/2b1Qn1K/1r3Q1R/5N1P/2Nq2pr/1Qbn3b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kf3 c5 d4 g5 b4 f5 e4 c4 e5 c3 h3 c2 h6 a4 b6 a3 d6 a2 d7+ Ke7 b7 Na6 b8N Nc7 d5 Nb5 h7 Nc3 b5 Bb7 b6 Nh6 e6 Ra4 Bb5 Ba8 b7 Rg8 h8R Rb4 Bd2 c1B Na3 Qa5 Qa4 Nd1 d8R Rg6 Rd6 g4+ Ke2 g3 Kf3 Rg4 Nc2 Rb2 Be3 Qd2 Nd7 Rb4 Bc6 Rg7 Rb1 a1B Rh2 Rg6 Rf2 Bd4 Ra1 Bb6 Qb3 Rg7 Qb1 Rf7 Ra7 Rf6 Rg8 Rf7 Rg4 Rf6 Rh4 Rg6 Kg2 f3+ Kh1 f4 Rf1 f2 Kg2 Nf5 Kf3 Rh6 Kg4 Rg6+ Kh5 f3 Bh6 Rgg4 Re1 f1B Re5 f2 Nf3 Nd4 Rf5 Bg2 Rf4 f1Q Rf6 Ke8 e7 Nf5 Rfe6 Bh1 Rg6 Kf7 Rgf6+ Kg8 e8Q Rge4 Nh2 Re2 Nf3 Rh2 Qe5 g2 Rde6 Ba5 Nfe1 Bb2 Nc5 Rc4 Rf7 Nfe3 Rf5 Qf4 Nf3 Bc1 Rf7 Ra4 Rf5 Qfb4 Rff6 Nf5 Qf4 Bb6 d6 Qa3 d7 Rc4 d8Q Qab4 Rg6+ Kf7 Qdb8 Qa3 Nd7 Qc5 Ra5 Rb4 Qbe5 Qe7 Ra7 Qe8 Be4 Bfc5 Rd6 Qh8 Bc6 Qf8 Qed4 Ke8 Rgf6 Ke7 Qde5+
2B2K1Q/1P6/nB1Q1p2/bbnBb1r1/1k4b1/1N1R1Pr1/N1QB1N1q/1q3b1R b - - 0 1 legal: proof: e4 b5 h4 c5 b4 d5 bxc5 g5 exd5 gxh4 a4 Bg4 axb5 Bc8 Ke2 Kd7 Kf3 a5 Kg4 h5+ Kf5 e5 g4 f6 Kg6 e4 Kf7 a4 d4 h3 c4 h2 d6 a3 d5 a2 b6 h4 b7 e3 f3 e2 g5 e1Q g6 h3 g7 Qd2 Nc3 Ne7 g8Q Rh5 Qh8 Ng6 Qc2 Rg5 Nge2 Qa5 Nd4 Na6 Nb3 Qb4 Be2 Qf4 Bd2 Rg3 Raf1 a1B Rd1 Qe5 Bd3 Nf4 Be4 Ne6 c6+ Kd8 d7 Kc7 d8B+ Kd6 c7 Nec5 Be3 Bg4 c8B Be7 Bb6 Bd8 Bd2 Bb2 Rhg1 h1B Kf8 Bg2 Rh1 h2 Rdg1 Qh5 Rd1 Ke5 d6 Bf1 d7 Kd6 Bd5 Qb5 Ba7 Ba5 Bb6 Rb8 d8N Ra8 Nc6 Qe5 Nb4 Be2 Rhf1 h1B Nd3 Bg2 Rh1 Bgf1 Nf2 Ra7 Be1 Qh5 Rd3 Qh2 Bd2 Ba1 Nd4 Qb1 Nb3 Bfh3 Qd1 Bef1 Qc2 Bd7 Qd1 Bb5 Qc2 Bg4 Qd1 Ne4 c5+ Ke5 Qc2 Bb4 Bde6 Bc6 Nd5 Nc7 Bf7 Ra5 Bd7 Na6 Bg8 Bd4 Nc3 Rb5 Bf5 Ba5 Bge6 Be8 c6 Kd6 c7 Re5 c8Q Bb5 Bf7 Rc5 B5e6 Rg5 Qd8+ Kc6 Bc8 Be5 Qh5 Ba4 Qh8 Nec5 Ne2 Kb5 Nc3+ Kb4 Qd6 Bc6 Bd5 Bb5 Na2+
RkB5/rPRr1QB1/3p1Q1r/rnP1bbK1/B2N2N1/1q5r/B1Q2q1N/2n5 b - - 0 1 illegal: No possible last move
6K1/Pk2Q1p1/1n2B2N/3nBQRb/2rNb3/bB1B4/1q2Pb1R/1QrqbN2 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 Kf2 Kd7 Ke3 f5 Kd4 b5 a4 f4 h4 f3 d6 Kc6 a6 b4 d7 b3 a7 f2 a5 b2 h5 g3 a6 g2 h6 Qf6 d8N+ Kb6 Kd5 c5 d4 c4 h7 c3 e6 c2 e7 Qg6 e8B Qh6 Nf3 g1B Nbd2 b1Q Ra5 Bd7 Rh2 Qh4 Bf7 Nc6 Bb2 c1B Bh3 f1B Bhe6 Rb8 a8B Bd6 a7 Bg2 Nf1 Ba3 Qd3 Qe7 Qf5 Be8 Bg6 Bce3 Nf7 Ne5 Nh6 Qf6 Bc6 Qc1 Ba4 Rc8 Bb3 Rc4 Qb1 Bh1 Bd3 Bd2 Rc5 Bdb4 Kd6 Bg6 d5 Qd1 Nd4 Ne7 Bc3 Rf8 h8Q Nd7 Qh7 Bh5 Qf5 Kb7 Bb2 Nb6 Ba1 Na8 Kd7 Be1 d6 Rf7 Ke8 Bgf2 d7 Nd5 d8Q Nab6 Ra5 Qe5 Bb2 Re7+ Kf8 Be4 Kg8 Rec7 Qe7 Rc1 Nc6 Qc3 Rc5 Qcd2 Be5 Qb2 Nd4 Rd7 Rc8 Rdc7 Rf8 Rc4 Rf6 Rc1 Rg6 Rc4 Rg5 Rc1 Qb4 R7c4 Qe7+
Rq3b2/N1nnbbRq/N1rr1NQ1/r3N3/3B4/2PB3p/2B1KR1P/1k3Qb1 b - - 0 1 illegal: No possible last move, all moves rejected
3nr3/KBB1q3/B1RQ1k2/4n2Q/2r2q2/1nPPpbRN/N2r1N1b/1Q2B1r1 b - - 0 1 illegal: No possible last move, all moves rejected
4k2r/Q1B4B/K1RNB3/1RN2Rnn/3QqBqn/P7/nPbb3p/Q2qr3 b - - 0 1 illegal: No proof kernel
1rRb1N2/1qn2QR1/1n6/1r2B2q/kRQ1B1BP/b3Ppb1/2Kn4/1N1QRb2 b - - 0 1 illegal: No possible last move, all moves rejected
R6Q/2K4N/3n1NNq/Nb1qqBr1/kQ2qP1b/3RnP1Q/2BBp1r1/n7 b - - 0 1 illegal: No possible last move
N1QB4/2Q2qkq/1b2Rbq1/2N4q/3rBPB1/Kpn3Qb/1n1P2RN/3r1N2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kf7 f4 c5 h4 e5 d6 g5 a5 b5 d7 g4 a6 e4 a7 c4 f6 g3 h6 b3 h7 b2 h5 b4 h6 b3 Qg4 g2 Kd1 c3 Rh2 e3 Ra6 Be7 Qg3 Qe8 d8N+ Kf8 f7 Nd7 Na3 b1Q Nf3 g1Q Nc4 Qf5 Ba3 c2+ Kc1 e2 Kb2 e1B Ne3 Qb5 Re6 Bf2 Nb7 Ngf6 Rg2 Qe2 Nc5 Ne4 Nh2 Qh5 Be2 Nc3 Bg4 Ne5 Nef1 Bf6 Bb4 Bd7 Ka3 Rd8 a8B Nd3 Ba5 Nb2 Be4 c1Q Bb6 Rg8 h8Q Qb1 h7 Bc8 Bc7 Rd4 Bd8 Qh1 Bef3 Qbg6 Be4 Be7 Qe5 Bf6 Qd6+ Kg7 f8N Qef7 Nfd7 Re8 Nb6 Re7 Bgf3 Bg1 Na8 Bd7 Re5 Bh3 Bg4 Rc7 Re8 Rc6 Qc7 Re6 Bc6 Re1 Be4 Rd1 Re6 Rd7 Nd3 Bb6 Nc5 Rd4 Rf2 Qf3 Re2 Qd3 Rg2 Kh6 h8Q+ Qgh7 Qe8 Kg7 Qed7 Qc2 Qdc8 Qb1 Bd5 Qbg6 Be4
1kB2q1B/1n3qN1/2Qr2bK/2BN4/4PR1Q/2Nqr2r/1pnbPrR1/2R3N1 b - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 e5 b4 axb4 f3 h5 gxh5 e4 fxe4 Bd7 Bg2 Bg4 Bf1 Bc8 Kf2 Kd7 Kf3 b5 Kf4 c5 h4 Kc7 a4 f5 d4 g5+ Ke3 b3 h6 b4 h5 g4 Kf4 g3 h7 g2 h6 b2 a5 c4 a6 b3 a7 c3 Qe1 c2 Qd1 Nc6 Rh2 Bb4 Nc3 b1Q Ba3 c1R Qc2 Nge7 Kg5 f4 d6+ Kb7 d5 b2 d7 f3 d6 f2 Qa4 Qf8 d8R Nd4 d7 Nc2 Kh5 Ba5 Bc5 Rd1 Rh4 Nc6 Rf4 Qa2 Rc1 Rd6 Kg5 Rb8 a8N Qaf7 Nb6 Kc7 Re8 Nd8 Nbd5+ Kb7 Re5 Ra8 Ref5 Kb8 Qc6 Nb7 d8N Be6 Re5 Bf5 Ne6 Bg6 Ng7 Bb4 Ref5 Ra3 Rg4 Ba5 Rff4 Rb3 Nb1 Re3 Nbc3 Rg8 h8Q Rh3 Nd1 Bd2 h7 Re3 N1c3 Rh3 Nf3 g1Q Rg2 Qh1 Ng1 Re3 Rg3 Qf3 Bh3 f1R Bc8 Rf2 Rg2 Qh3 Nh5 Qf3 Qf6 Rg7 h8B Rh7 Ng7 Qh3 Qe7 Qd7 Qd8 Rhh3 Qf6 Bh5 Kh6 Bg6+ Qh4 Qdd8 Qb5 Qdd7 Qa6 Qb5 Qa4 Qd3 Qc6
QqknN1Qq/r1Q3b1/4Bb2/B2bN3/4PB2/R1P4p/3K1RRb/nQ3rq1 b - - 0 1 illegal: No possible last move
2Q2R1B/5b2/BK5k/r1n3qN/Q3PnP1/b1bNQ1pb/RBR1r3/1B2n2q b - - 0 1 illegal: No proof kernel
6rn/2qB2q1/1N3k2/QnnB2r1/1B1pQ1P1/R1BP1NRb/K1R3nN/2q2b2 b - - 0 1 legal: proof: h4 e5 a4 b5 b4 g5 hxg5 Be7 axb5 Bd6 b6 Bb7 f4 exf4 c3 Bf8 b5 Bb4 cxb4 Bc8 e4 Ke7 g6 f5 g7 c5 g3 d5 b7 h5 b6 a5 b5 c4 e5 d4 d3 f3 Kd2 c3+ Kc2 h4 Kb3 c2 e6 f2 Nf3 h3 Nh2 f4 Ra3 a4+ Ka2 f3 Nd2 Rh5 Rg1 Na6 b8N Qc7 b7 Rg5 b6 Nh6 g8B Kf6 e7 Nc5 e8Q Nf7 Qe4 Nh8 Bb2 c1Q Bc3 Bd7 Be2 f1B Bd5 f2 Bg4 Bc8 Qde1 Qg7 Rb3 a3 Ndf3 Qf4 Bd7 Qc7 Ka1 a2 Ra3 Be2 Kb2 a1N Ka2 f1N Rg2 Nc2 g4 Nfe3 Rg3 Bf1 Qb1 Ng2 Qb5 Qh7 Qa5 Qg7 Na6 Rb8 Nb4 Ra8 b8B Bb7 Ba7 Bc6 b7 Rg8 b8R Ba8 Rb3 Na3 Rc8 Nb5 Ra3 Bb7 Nc6 Ba8 Nce5 Bc6 Nc4 Bb7 Nb6 Bc6 Nd2 Ba8 Nhf3 h2 Bb8 h1Q Nh2 Qg1 Ndf3 Qe3 Ba7 Qc1 Bb8 Qa7 Bd6 Qc7 Bf8 Qb7 Bc4 Na6 Qe5+ Kg6 Be1 Nf4 Nd2 Qb8 Bce6 Bag2 Bb4 Bh3 Ndf3 Ng2 Qe4+ Kf6 Rc2 Qc7 Bd5 Nc5 Bec3
1bQNRRn1/1rqk2BB/B6N/3r2RK/1bp1q1nP/2b4P/2N2QbN/7n b - - 0 1 illegal: No possible last move
3B2Q1/2Qb1N2/2R1n1NN/7q/pb3rnB/1Bq5/K1P1Pnbb/QR1Br2k b - - 0 1 illegal: Other
bb4r1/1Q1NRN2/b2k4/2qqrB1P/3PQ1Q1/1R1nRN2/KB1b1n1p/6qQ b - - 0 1 illegal: No proof kernel
3nqBNQ/2N3bB/r3q2N/1r1nr1P1/4R1bp/Q1P1B2Q/1N4K1/1krq1R2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 Kf7 Kf2 a5 b4 e5 g4 d5 f6 Ke6 c3 h5 f5+ Kd6 b6 a4 b5 Kc5 g6 a3 g5 e4 b7 d3 f7 Kc4 f6 e3+ Kg2 h4 g7 d4 b6 a2 Qf3 Kb3 Na3 e2 Qh3 e1R Ne2 d2 Nc4 Kc2 Nb2 d1R Ng3 d3 Nf5 d2 Nh6 Nc6 b8Q Ra6 b7 Nge7 g8N Bg7 f8Q Nd5 f7 Bg4 Qa3 Re5 f8B Qe8 Bb5 Rde1 Rf1 d1Q Be3 Nd8 Rf4 Rh1 Re4 Rh7 Rb1 a1Q Qa8 Rh8 b8N Qa2 Bd7 Qc4 Bf5 Qcc6 Bh7 Qce6 Nc6 Rf1 Na7 Re1 Ra1 Rh1 Nb5 Re1 Ra2 Kb1 Qc8 Qd3 Nc7 Rc1 Na4 Qd1 Rf2 Be2 Rf1 Bg4 Nf6 Rg8 Nb2 Rh8 Bd6 Rf8 Nfg8 Rf7 Bf8 Re7 Nb5 Rb7 Nc7 Rb5 Be7 Q8g6 Nf6 Nc6 Qh8 Nd8 Nfg8 Qe8 Bf8
qNrb3N/2R1Bk1Q/q1r1R3/1bB1QKP1/6pQ/1R4Pr/nN4q1/R1r4n b - - 0 1 illegal: No possible last move, all moves rejected
4qn2/3RB2B/q1q1k2b/2QqrRP1/r4pN1/1NPR1Q2/N1R1Q1bn/2K4b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 g4 d5 b4 f5 e4 h5 e6 a5 c3 f4 b6 d3 b5 d4 e5 a4 g6 a3 g5 h4 g7 a2 b7 h3 b6 h2 Ne2 Nc6 b8R Bd7 b7 Be8 Ba3+ Nb4 Nc1 Rh5 Qf3 Nf6 g8R Bh6 Rf8 Ng4 Rf5 Ra4 Be2 Bg6 Rd1 Qe8 Rd8 h1B b8Q Rh3 Qc8 Nh2 Rd6 Bf7 Qc5 Nd5 Bf1 Nf6 Bb4 Kf8 e7+ Kg7 e6 Nh7 Rd7 Nf8 Ba3 Rg3 Bh3 Rg1 Bg4 Re1 Bh5 Kg8 Bg6 Re5 Bh7+ Kg7 Bb4 Bh5 Ba3 Bg4 Bb4 Bh3 Ba3 B3g2 Bb4 Qg6 e8Q+ Qf7 e7 Qe6 Na3 Qc6 Rb1 a1Q Nb3 Qa2+ Kc1 Qe2 Nc2 d2+ Kb2 d3 Rbc1 Qee4 Ba3 Qed5 Nb4 Qc4 Rc2 Q4a6 Rb1 d1Q Na2 Qe1 Rd1 d2 Qeh5 Qee4 e8N+ Kh8 Rd3 Qed5 Nf6 Kg7 Qhg4 Kf7 Qe2 Qdd7 Qgf3 Ke6 Ng4 Qdc8 Qa7 Qd8 Be7 Qdd7 Qc5 Qe8 Rg1 d1Q Rd7 Qdd6 Kc1 Qd4 Rd1 Qdd5 Rd3
1N1B1rqB/kQ2bRRb/1rq5/5P1r/1p3r2/3BN2N/KPn4q/1QQn1B2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 exf5 b4 Qc2 Qd7 Qd1 Qb5 axb5 Bg7 Be2 Bh6 Bf1 Bf8 f4 Kd8 d4 a5 Kd2 h5 Kc2 c5 Kb3 Kc7 g4 Kb7 f6 e5 g5 a4+ Ka2 a3 b6 c4 f7 e4 d6 h3 d7 h2 d8B c3 g6 h4 g7 e3 d5 e2 d6 e1R d7 c2 Qd3 h3 Qd6 Re4 Bb5 Rh6 Bd3 Ne7 g8B Nf5 Qc5 Ne3 Nc3 Nc6 Nd5 Nd4 Bd2 c1Q Bc3 Nd1 Ne3 Be7 f8Q Nc2 Bgc4 Kb8 b7 Rb6 Qf7 Ka7 b8N Bb7 Ba6 Rc4 Qg7 Be4 Qh7 Bg6 f5 Rf4 Bh8 Qd2 Qh4 Bh7 Qe1 Qg2 Bf1 Qb7 Bad3 Qc6 Kb3 a2 Qc4 Na3 Qc1 Nc2 Rb1 Nf2 Qed1 a1Q Qe1 Qa6 Qed1 Qab5 Ka2 Qg2 Ra1 Qbc6 Qb1 Qg4 Qdc1 Nd1 Ne2 Qcg6 Rg1 h1Q Rg2 h2 Ng1 Qg3 Nh3 Qc6 Rg1 Qgg6 Rg3 Qe8 Rg7 Qg8+ Nd5 Qc7 Na6 Rc4 Ng5 Rc5 Kb3 Bf8 Be7 Qc6 d8Q Rc4 Ne3 Kb7 Ra3 Qhg2 Ka2 h1R Ra5 Rh6 Nh3 Qh2 Rd5 Rc8 Nb8 Rh5 Rd7+ Ka8 Bg5 Rf4+ Rdf7 Bd6 Qc7 Rf8 Bd8 Be7 Qc8 Ka7 Qb7+
1n1krQb1/2n2B2/R2B2Bb/5P1Q/P5q1/2nB1r1R/NN2p1QK/qnb1N3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 h5 f4 e5 Kf2 b5 Kg3 c5 f6 c4 d6 h4+ Kh2 e4 g4 b3 f7+ Kd7 f5 e3 g6 b2 d5 h3 g5 b4 g7 c3 g6 c2 Nd2 b1N Nc4 b3 Nf3 b2 Bd3 Ne7 g8B Bh6 f8Q Ra6 g7 Nd2 Bh7 b1Q g8B Qdb6 Nb2 Qb4 Bg6 Qg4 B8f7 Ra3 Ne1 Ba6 Qg7 Kd8 d7 Re8 Qf3 e2 Qg2 Nec6 Qf8 Nd4 Qh8 Nb5 Qf8 Nb3 Bf4 c1B Bd6 Nd2 Qh8 Nc7 Qh7 Bg5 Qh5 Rb3 a4 Bh6 Ra3 Rc3 Rb3 Bc4 Rb6 Qa2 Ra6 Qa1 Bf4 Ke7 d8N Nb1 Nc6+ Kd7 Nb4 Kd8 d6 Ba2 Bb5 Rf3 d7 Be6 Na2 Bc4 Rg1 Be6 Bd3 Bd5 Kh1 h2 Bd6 Be6 Qgh3 Bc4 Rg3 Bb3 Kg2 h1N Kh2 Nf2 Qg2 Nd1 Rh3 Rf8 Be8 Bg8 Bef7 Ndc3 Bf4 Ke7 Bg3 Re8 d8Q+ Kf8 Qc8 Ke7 Bf4 Nc6 Qa8 Nb8 Bd6+ Kd8 Qe4 Kd7 Qe7+ Kc8 Qf8 Kd7 Bc5 Kd8 Bd6
b1N1Rbn1/2q3b1/6b1/Q3RPq1/p4kBn/Q2Q2rB/1B1K1R1P/N3r1Bn b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 f4 Kf6 c4 d5 c5 a5 b6 g5 c6 e5 c7 a4 b7 d3 h6 g4 b5 d4 b6 g3 h7 e4 Bb2 g2 Kd2 Ra7 Nf3 g1Q Ra2 Nd7 b8Q Ne5 b7 Ng6 Bh3 Nh4 Qa8 Qg5 b8R Bb7 c8B Qc7 Na3 Bg7 Nb5 e3+ Ke1 e2 Nd2 Ra6 Na7 Re6 Nb3 Be4 Na1 d2+ Kf2 e1B+ Ke2 Bg3 Re1 Re7 Qb3 d1N Kd2 Nf2 Qd3 Nh1 Bd7 Bf2 Re8 Bc6 Qd8 Ba8 Nc8 Bg3 Re5 Be1+ Kd1 Bb4 Be6 Ba3 Kd2 Bc5 Qd5 Ba3 Qa5 Bd6 Qe4 d3 Bd7 Re6 Bd4 Bdf8 Bg1 Rb6 Qe3 Rb1 Rc2 Re1 Rb2 Kf7 f6 Kg6 f7 Kh5 Bdg4+ Kg6 Qe2 Kf6 Ke3 d2 Kd3 d1B Kd2 Bc2 Qd3 Nh6 Ra2 Rg8 h8B Bb1 Qb3 Bg6 Qd3 Qh5 f5 Kg5 Rc2 Kf4 Ra2 Be7 f8Q Qg5 Qf6 Bef8 Qe7 Bf6 Qea3 Rg7 Rc2 Ng8 Qaa6 Rf7 Ra2 B6g7 Qa5 Rf6 Rc2 Rc6 Rb2 Rc3 Qd7 Nf6 Re2 Bh6 Rb5 Rf3 Rf2 Ng8 Bb2 Bhg7 Rbe5 Rb1 Rfe2 Rg3 Qdd3 Re1 Rf2+
1n2B3/q1N5/NbNrn1K1/1Qq2pN1/q7/1bbrR2P/Qbk4P/RBB3Q1 b - - 0 1 illegal: No possible last move
R4q1N/b2n4/n1r4b/q4pNK/3kBBRP/QQb2RP1/B1B4N/r2bn3 b - - 0 1 illegal: No proof kernel
q1nN1nr1/1R5B/1n1R1KBr/2nbP3/k1Q4p/3RB3/1P1q1NBN/1Qb3b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Kg4 c5 Kf5 h5 g4 h4 d4 c4 e4 c3 e5 f3 d6 c2 d5 f6 g6 a4 g7 f2 b6 a3 b7 a2 g5 Qa5 g6 Rh6 Rh3 Qd2 Bg2 f1Q+ Nf3 Qa6 Nh2 Qa7 Rd3 Ne7+ Ke4 Qa3 g8B Qa6 g7 f5+ Kd4 f4 Ke4 f3 Nc3 f2 Bh7 f1N g8B Qa3 Bg6 Ne3 B8h7 Nc4 Qf3 Qa5 Nd1 Nb6 Nf2 Qa6 Rb1 a1N Qe3 Nb3 Qh3+ Kd8 d7 Kc7 d8N N8d7 b8R Bb7 Qf3 Nec8 Kf5 Bc5 Qd1 Qda5 Be3 Nf8 Kf6 c1B d6+ Kd7 Qc2 Qd2 Qc3 Bd5 Ra1 Qb7 Ra6 Bd4 Qb4 Nc5 Qc3 Qc7 Rb7 Rb8 Nf7 Kc6 d7 Kb5 d8Q Ra8 Qd6 Qb8 Nd8 Qa7 Qc7 Rb8 Qc2 Qa8 Qb1 Kb4 Raa3 Kb5 Rab3+ Ka4 Rb5 Nb3 Qc3 Nc5 Rd7 Rb7 Rd6 Rg7 Rb3 Rg8 Rb5 Nc4 Rb8 N4b6 Rb7 Bb3 Bf4 Ba2 Nh1 Bg1 Nf2 Bf7 Be3 Bd5 Qc4+
rR3qR1/3nR2b/2r4B/2QBPPnK/2n1q1N1/1BbN1p2/q1R5/Q2kn2Q b - - 0 1 illegal: No proof kernel
2r1B1rQ/3q2Q1/1n1n1R2/2QP1b2/k2npN2/QbR3B1/nqRKPB2/q6N b - - 0 1 illegal: No possible last move
1N1K1bRR/2nbr2N/Q2N2Rn/1q1P2Q1/pr2BB2/8/n2b1k1P/N2Bbq2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 g5 d4+ Kc4 b4 f5 b6 c5 d6 a5 b5 a4 e4+ Kb4 d7 g4 Ke6 f3 d5 f2 e5 g3 h6 g2 h7 f4 b7 c4 b6 Kc5 Qd3 f3 Nd2 c3 Qa6 Kd4 Be2 Ke3 Bd1 f1N Nb3+ Nd2 Nh3 g1B Ng5 Nc6 b8R f2 b7 f1Q Ra2 c2 Na1 Bf2 Rg1 Qa5 Ra3+ Kf4 Rh3 Nh6 Rh5 Rg8 h8N Ke3 Nh7 Na7 Nf7 Rg7 Nd6 Nb5 Rg6 Re7+ Kf6 Ra7 d8Q Bd7 e6 Nc7 Ra8 Qc5 b8N Qcb5 Rh4 Rb7 Rhg4 Rg7 e7 Rb6 e8B Re7 Rg8 Rb7 Bg6 Be1+ Bf5 Kf2 Be4 Nb1 R4g6 Nc3 Bf4 c1B Rh8 Re8 Qe7 Na2 Qe5 Bcd2 Qg5 Qb1 Bec2 Re3 Be4 Qbb5 Rhg8 Rb3 Rh8 Rb4 Rhg8 Bg7+ Ke7 Bf8+ Kd8 Rb6 Nc4 Re6 Nd6 Re7 Rh8 Nc3 Nc6 Bg7 Rb8 Na2 Rc8 Rf7 Nb8 Rf8+ Ke7 Rf6 Rcf8 Rf7+ Kd8 Re7 Rfg8 Bf8 Bg4 Rc4 Bgf3 Rb4 Bd1
3qnR2/Qnb2NQ1/5r2/2PQqp1N/5BN1/1brn1RNK/nr3P2/k1RB4 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 g4 Ke7 c4 Ke6 e4 h5 g5 d5 c6 f5 g6 a5 b6 a4 b7 d4 c7 d3 g7 a3 c5 h3 Nd2 h2 Ra2 h4 Qh5 h3 Qh7 Nd7 b8R Bd6 Ndf3 Ngf6 Bf4 Ra6 Be2 d2+ Kf1 d1N Rc2 Nc3 Bd1 a2 Ne2 a1N Ng3 Nb3 g8N Na2 Qg7 Rh7 Nh6 Na5 Ng4 Ne8 Ra8 Bb7 c8Q Bd5 Qb7 Bc7 Qa7 Bb3 Rg1 h1R Rb8 h2 Kg2 Rh5 Re1 Rh4 Re3 Rh6 Rec3 Rf6 Kh3 Rb6 Ra8 Nb7 Rd3 Rf7 Ng5+ Ke7 e6 Ne5 Re3 Nd3 e5 Re1 Rf3 Re3 Qh6 Rf6 Nf7 Rb5 Qg7 h1Q+ Nh2 Qe1 Ng4 Re4 Rc8 Rc4 Rb8 Ned6 Ra8 Rc3 Rc8 Ke8 e7 Kd7 e8N Kc6 e6 Kd5 e7 Kd4 Rb8 Qe5 Ra8 Rg6 Nef6 Ne8 Nfh5 Rf6 Rb8 Bd5 Ra8 Rb2 Rb8 Bb3 Ra8 Ned6 e8Q Kc4 Qc6 Ne8 Rc8 Kb4 Qab6+ Ka3 Qd5 Nac1 Rb8 Ka2 Rc8 Ka1 Qa7+ Na2 Rb8 Qde7 Ra8 Ned6 Rh8 Qd8 Rf8 Ne8 Rc1+
B1N5/5knK/1N1q2R1/2p1P1Rn/3bQ1N1/1bq1N1rQ/q1PB1b1Q/B4rb1 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Ke2 g5 Ke3 a5 Ke4 c5 h4 d6 f4 g3 b4 a4 b6 a3 f6 g2 h5 g4 f5 g3 h6 a2 h7 Nh6 f7+ Ke7 b5 Ra6 b7 Ra5 f6+ Ke6 b6 Nf5 Bb2 Nh4 Qg4+ Nf5 Nc3 Na6 b8N Be7 f8N+ Kf7 b7 Ke8 Nh3 g1Q Nbd7 g2 b8Q Kf7 Qb4 Ra3 Nb6 Nc7 Ng6 Ne6 Nf2 Nf4 Qh3 Nh5 Ng4 Rf8 h8Q Nfg7 Ncd5 Be6 Nde3 Bb3 Qa4 Qh2 Rg1 Qg3 Rd1 Qb8 Ba1 Qa7 Qd4 Bd8 Ne7 Qa4 Nec8 d5+ Kd3 Qa7 Qe4 d4 Be2 Qe1 Bf3 Qea5 Qh6 Qa8 Qhf4 Qd5 Qfh2 Qc3+ Ke2 d3+ Kf2 Ke6 f7 d2 Rb1 d1Q Rc1 Rh8 f8B Kf7 Be7 Q1d3 Bg5 Rf8 Rcd1 Qd3c4 Rd3 Qc6 Rd6 Qd7 Rg6 Qd6 Nf5 Qce6 Bd2 Bh4+ Ke2 Bf2 Nfe3 Qd8 Qd3 Qdd6 Ba8 Qec4 Kf3 Qa6 Ke4 Qa7 Rd1 g1B Rb1 Ne8 Kf5 Neg7+ Kg5 Qaa5 Kh6 Qa6 Bb2 a1B Qe4 Qcc4 Bbc3 Ba2 Rb3 Ke8 Ng2 Bg3 Bb7 Rf1 Kh7 Kf7 Ba8 B3f2 Nf6 Qcd3 Bd4 Qg3 Re3 Rc3 Rf3 Bb3 Rf5 Qa2 Rfg5 Qe3 Ng4 Qe1 Bc1 Rg3 N2e3 Qb4 Bc3 Qba5 B3d2 Bd4 Bb2 Qc3 Ba1
q2bR2n/n5b1/1B1r1qb1/1P1RQ1Qr/b5K1/1pNBNQ1R/7P/NnR4k b - - 0 1 illegal: No possible last move
1B3bq1/nb5R/Qn1Qq1Q1/KP5R/7P/N1Nn1r1B/R1rB1n1p/k3r2B b - - 0 1 illegal: No proof kernel
r1N3RR/4Q1nQ/QR6/KPr4p/bB1P1N2/3B2b1/1brn1R2/1qk2qNb b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 Kd6 b4 h5 d4 e5 Kd2 a5 Kc3 c5 f6 c4 f7 e4 b6 h3 f5 a4 b7 h2 f6 a3 g5 e3 g6 a2 g7 e2 Qa4 e1Q+ Nd2 Qb6 Bd3 Bd7 Qa6 Ba4 Ba3 Ne7 g8Q Nbc6 b8R Nf5 Rb1 Ne5 Qh7 a1B+ Rb2 Bg7 f8R Qf1 f7 Nf3 Rg8 Be5 f8N Bg3 Ne6 Ng7 Rbe8 Rc8 Nf4 Rc5 b5 Qc6 Kb4 c3 Rb8 c2 Rb6 c1R Ka5 Rc2 Bb4 Qb1 Ra2 Bb2 Ra1 Qa2 Re1 Qb1 Ree8 Qf1 Ngh3 Qb1 Rf1 h1B Rf2 Qf1 Ng1 Qb1 Nf1 Nd2 Ne3 Qf1 Ng4 Qb1 Ne5 Qf1 Nd7 Qb1 Rb7 Qf1 Nb6 Qc8 Ree7 Qf5 Ree8 Qb1 Ra8 Qh3 Raf8 Qhf1 Rbb8 Ke7 Rfd8 Kf6 d6 Kg5 d7 Kg4 Nc8 Kg5 Rh2 Kg4 Rdf8 Kg5 d8Q+ Kg4 Nge2 Kf3 Rb6 Ke3 Qe7+ Ne4 Ba3 Kd2 Ng1+ Kc1 Rf2 Nd2 Qhe4 Rh6 Qh7 Rd6 Bb4 Rd8 Rh8 Re8 Rfg8 Rd8 Nd6 Ra8 Nc8
1bB3QN/rq1n4/1RQ1b2b/1P1N1p2/2KR2Q1/N1B2b2/R2rNP2/1k1rq1n1 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kd3 Ke6 c4 Kf5 e6 a5 c6 h5 c7 d5 e7 a4 e8N d4 c5 a3 c6 a2 Bb2 h3 Nf6 h4 Nd5 h2 Kc4 Ke4 g4 d3 g5 h3 g6 d2 g7 Nf6 g8Q Be6 c8Q Qc7 Bc3 Nh7 Na3 Nd7 Nc2 Qb7 c7 Ra7 e3 f6 Ne2 Bh6 Qa8 Ng5 c8R Nf3 Rc6 Ng1 Rb6 Rh7 Qac8 Rf7 Qc7 Rf8 Qc6 Rd8 Bg2+ Nf3 Re1 h1B Rf1 h2 Bh3 Ng1 Re1 Kf3 e4 Bg2 e5 Ke4 Bg4 h1Q Bh3 Bf3 Rf1 Beg4 e6 Bf5 e7 Be6 Rb1 a1B e8N Bb2 Ra1 Ba3 Ra2 Bd6 Ng7 Bb8 Nf5 Rf8 Nh4 Rd8 Ng6 f5 Nh8 Be3 Bg2 Bh6 Qc1 d1R Qcg5 Rd2 Rb1 Rd1 Rb4 Rd2 Kb3+ Kd3 Qg4 Rd1 Ne3 Qc8 Qb7 Qh3 Rc4 Qc6 Nc7 Rc8 Bb4 Be4 Bh1 Qf1 Bd2 Rd8 Bc3 Nf8 Bf3 Qd7 Qc8 Ba8 Bb7 Qe1 Kb4 Qc6 Qd7+ Qd5 Bc8 Bb7 Qe8 Qd7 Kc5 Bf3 Rb4 Qg7 Qc6 Rd4 Ncd5 Qb7 Bb2 Kd2 Nc2 Rd3 Rd4 Nd7+ Kb4 Nc5 Ng3 Nd7 Bc3+ Kc1 Ne2+ Kb1 Kc4 R3d2 Na3+
RrQ2n1Q/3B4/rNRr1k1n/1pN1R2P/1q6/bPr1nbBq/2QR4/4K1B1 b - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Rh7 Qc2 Rh8 Qb2 axb2 f4 Kf7 d4 b5 a4 g5 h4 e5 h6 c5 h5 g4 d6 g3 a5 c4 d7 c3 d5 e4 h7 g2 d6 e3 a6 c2 f6 e2 f5 Bg7 a7 Nh6 Nc3 b1Q Ne4 Na6 Nc5 Bb7 Nh3 g1N Nf4 Qg8 d8R Nh3 d7 Ng4 Nd5 Rb8 a8R Ng5 Nb6 Ne3 Bh3 Nc7 R1a6 Qf8 Rf1 Rg8 h8Q Nce6 Rf4 Bh6 Re4 Rg6 Re5 Bf3 Bg4 Qa2 Bb2 Qe7 Bd4 Nf8 Bh3 Qa3 Bg4 Qe6 Bh3 Nd1 Bg1 c1R Bg4 Rc3 Qh7+ Bg7 Bh3 Rh6 Qg6+ Kg8 f7+ Kh8 f6 Qb4 Qc2 Ne3 Nc4 Qg4 Rc6 Qg2 Bf5 Qh3 Nb6 Rg6 Rdc8 Kh7 d8Q Kh6 Bd7 Kh7 Kf2 e1R Rd6 Rd1 Rcc6 Ra1 Qc8 Ra6 Rd4 Ne4+ Ke1 Ng3 Rd1 Ngf5 Rd3 Nh6 Rd2 Ne6 f8Q Bh8 Qd6 Nf8 f7 Kg7 Qd5 Rd6 Qd4 Ng6 f8B+ Kf7 Bg7 Nf8 Bf6 Bg7 Be7 Bf6 Bd8 Be7 Bc7 Kg7 Qc4 Kf6 Qg8 Bd1 Qgh7 Bf3 Qh8+ Kf7 Bd8 Qc4 Nb7 Rg6 Re4 Ba3 Nc5 Rd6 Re5 Qf4 Bh4 Qb4 Rg5 Ke7 Bg3 Kf7 Rgd5 Ke7 Re5+ Kf7 Qg8+ Kf6 Qh8+
1k4N1/1qBbqbB1/2R2q2/P1B1Nr1N/nP2pn1b/KQR5/Q1B3Q1/r2q4 b - - 0 1 illegal: No proof kernel
R4B2/QBkq2N1/r2n4/P3p3/1r3nbR/BQ2b3/Pr1r1NNK/q1R1q2B b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 f4 Kd7 Kf2 h5 g4 c5 Kg2 e5 d4 b5 f6 c4 f7 c3 g5 c2 f5 h3+ Kh2 b4 f6 h4 d6 b3 d5 b2 g6 Nh6 g7 Rh7 g8B Bg7 f8Q Nf5 f7 Na6 Na3 b1R Bg2 Bh6 Nc4 Nc7 Qg7 Be3 Ba3 c1R Qb3 Rc2 f8B+ Qe7 Qf7 Rbb2 Rc1 Rd2 Qg7 Kd8 d7 Ne6 Bf7 Kc7 d8N Nf4 d6+ Kd7 Bg6 Ra6 Ne6 Rh5 Bf7 Rg5 Qh7 Rg4 Ng7 Kd8 d7 Nd6 Bg6 Kc7 d8R Be6 Be4 Qd7 Ne2 Bf5 Nc3 Be6 Nd1 Bf5 Nf2 Be6 Kg1 h2+ Kf1 h3 Bb7 Rh4 Ra8 Bg4 Bgd5 Ba7 Ne3+ Bc5 Rg1 h1Q Bdc6 Qe4 Ng2 Be3 Rh1 Qb1 Kg1 Qa1 Rf1 Qe1 Kh2 Qa1 Qhd3 Qe1 Qd4 Qa1 Qa7 Qe1 Kg3 Qa1 Rb1 h2 Rhc1 h1Q Rc4 Qe1 Rbc1 Rh6 Rd4 Re6 Kh2 Rb6 Nh4 Rb4 Bh1+ Nc4 Ng2 Ra6 Rd6 Bd1 Rh6 Bg4 Rd1 Nd6 Rh4 Qf5 Rb1 Qd7 Rc1+
qRnQrB2/k1r5/2rb1KB1/P2pR1r1/R6Q/n2PQ2Q/b6N/n2q1BN1 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 Kf7 hxg5 Ke8 c4 b5 cxb5 axb4 Ke2 e5 Ke3 d5 f4 Kd7 g4 h5 a4 c5 b6 Kc6 f6 Kb7 a5 b3 g6 e4 g5 h4 f7 b2 g7 h3 g6 h2 d3 c4 Kd4 c3 Ke5 c2 f5 e3 f6 e2 Qe1 Rh3 Nd2 b1N Ba3 c1R Ndf3 Rc6 Qh4 Ne7 g8B Rg3 g7 Ra7 Bh7 Na6 g8Q Nc5 Qgg4 Nb3 Bg6 e1R+ Qe4 Ka8 Qe3 Ba6 b7+ Kb8 Bc5 Nc8 Ra4 Na3 Bb4 Bc5 f8Q Na1 f7 Bc4 Qfh6 Ba2 f8Q Bd6+ Ke6 Qe8+ Kf6 Rg5 Qh3 Re2 Q6h4 Qd8+ Qfe7 Qg8 Qd8 Re1 Ne2 Qe8 Rg1 h1Q Nh2 Qg8 Rg4 Qf3+ Rf4 Qe8 Ng1 Qd1 Rf5 Qg8 Qc5 Re8 Qcb6 Ra6 Qbe3 Rc7 Re5 Rac6 Qeg3 Ka7 b8R Bb1 Qe1 Ba2 Qee3+ Nb6 Qh7 Ree7 Qdd7 Bc5+ Qd6 Qc8 Q7h4 Qb7 Qee1 Qa8 Qee3 Nc8 Qhe6 Re8 Qd8 Bb6 Bf8 Bc5 Qee1 Bd6 Qeh3 Rd7 Qd2 Rdc7 Qde3+
2bq1k1n/1rN1qn1r/2BBQb2/pBQbR3/2R2R2/4NB1P/2P2K1n/5n1Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 f5 e4 g5 h6 a5 h7 d5 e6 d3 e7 g4 h3 f4 b6 d2+ Kf2 d4 b7 d3 b5 f3 e5 Bd7 b6 Be6 Bg2 Qc7 Ne2 Qd7 Ng3 Bc4 Na3 Ra6 Nb5 Bg7 Nf5 Bf6 Rf1 Nc6 b8Q+ Nd8 b7 Nh6 Qa7 Nhf7 b8R Bd5 Rc8 Rb6 Ne3 Rb7 Qc5 Qc7 Qe2 d1Q Ba3 d2 Re1 Qd7 Bb4 Qe6 Ra4 Qd6 Qf1 Qe6 Qh1 g3+ Kf1 f2 Bf3 Qd6 Ba3 Qd7 Rf4 Qc7 Kg2 f1N Kg1 g2 Kf2 g1N Bb4 Rg8 h8Q Qd7 Qg7 Nh8 Qh6 Rg7 Nc7+ Kf7 Ba3 Rh7 e8B+ Kg8 e6 Ndf7 Bb4 Qe7 Qg6+ Kf8 Qe4 Ne2 Qec4 Neg3 Bb5+ Kg7 Qa2 Nh2 Ba3 Ngf1 Re2 Qd8 e7 Qb1 e8B d1B Re1 Qb4 Bec6 Qe4 Qac4 Qee7 Qe4 Kf8 Qe6 Bc4 Ng2 Bd5 Re5 Be2 Ne3 Bd3 Qb6 Bf5 Bd6 Bg4 Qc5 Kg7 Rb8 Bh5 Ba6 Kf8 Qg4 Ra7 Rbb4 Rb7 Bab5 Bg6 Rbd4 Bf5 Rc4 Bc8 Qe6
3nrQ2/q1kR1q2/1r5P/bb2Bb1N/2qR4/KQQ2QpN/B2P4/nR4Bb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 b4 a5 e4 g5 b6 c5 b5 f5 d6 a4 h6 a3 e5 f3 h7 f4 h5 a2 e6+ Ke8 b7 c4 e7 Kd7 h6 c3 b6 c2 Rh4 g4 Bc4 g3 Ba3 c1Q Bc5 Ra6 Nh3 Qe8 Bg1 Nc6 b8B Qf7 b7 Nd4 Nc3 Rb6 Ne2 Nb3 Rb1 a1Q e8R Qa4 Re6 Na1 Ba2 Qa7 Rg6 Kd8 d7 Bb4 Be5 Ne7 b8Q Re8 h8Q Nc6 Rd6 Qcc4 Qb7 Bc3 Qb3 f2+ Kd1 f1B Kc1 f3 Rhd4 f2 Nef4 Ba5+ Kb2 Bg2 Nh5 f1B Ka3 Bh1 Qa8 Kc7 Qg7 Nd8 Qaf3 Ba6 Qgf6 Bb5 Qfc3 Nc6 Qff3 Bd3 d8Q+ Kb7 Qdf6 Kc7 Qh8 Bf5 Qf8 Nd8 Rd7+
2Q1br2/1Q2RRn1/5QKP/rB1q1Bnp/rN3b1R/3Pr1kN/5b1B/5q1B b - - 0 1 illegal: No proof kernel
3Bn1NB/3nr1Q1/K3R1bP/NBP1bQb1/1QR1n3/qn1N3q/N3p3/5kr1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 f4 e5 b4 a5 h6 g5 b6 d5+ Kb5 a4 c4 g4 c5 a3 h5 a2 h7 g3 f6 d3 h6 d2 f7 Ke3 f5 Kf2 f6 d4 b7 d3 Qb3 d1N Rh4 g2 Ne2 g1B Bg5 e4 Nf4 d2 Nc3 Nd7 b8N e3 Nc6 Bd6 f8Q Be5 f7 Ra7 Ne7 Ngf6 Qg7 Rg8 f8Q Ne8 h8B Bh2 Rc1 a1N Na2 Rb7+ Ka6 Nc3 b5 d1Q b6 Qh5 Rd1 Ne4 Bb5 e2 Rd6 Kf1 Qb4 Nb3 Nd3+ Bhf4 Re6 Qf3 Qf5 Qh3 Qgf8 Rc7+ b7 Rg7 Bf6 Rg1 Ng8 Qe7 Rg4 Qg7 Rh4 Qgg3 Bd8 Qf3 Qg7 Bg5 Qfg6 Nb6 Rg4 Re7 Qf5 Bd7 b8N Bc6 Qgf7 Nd7 Qg7 Bd5 Nc6 Bc4 Rg6 Bf7 Re6 Bg6 Rf4 Ned2 Rc4 Ne4 Qg4 Qfg3 Na5 Qe3 Qh5 Qc1 Qg4 Qa3 Qf5+
b2r1Nkr/1qB2q2/2B3Bp/2nQKR2/1P2Q1bN/1B2PRnr/1N3b1b/2R5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 Kf7 b4 c5 g4 a5 d4 h6 b6 a4 d6 a3 d5 a2 g6+ Kg7 g5 c4 b7 c3 d7 c2 d6 Qe7 d8R Qe8 d7 Qe5 Nc3 Qb5 Na4 Qb6 Qd4+ Nf6 Rh5 Qd6 Nb2 Qd5+ Qe4 Bd6 Bg2 Na6 b8N Nc5 Rf8 Qb7 d8Q Be5 Be3 c1R Qdd5 Rc3 Rc1 a1B Nd7 Bd4 Rf7+ Kg8 g7 Rb8 Rh3 Nh5 Nf8 Ng3 Rh5 Be6 Bh1 Rd8 Bg2 Be5 Bh1 Nd3 Bb6 Bb8 Bc7 Nc5+ Kg2 Bc8 Nf3 Rd3 Nh4 f3+ Kh3 f4+ Rf5+ Be6 Kg4 f2 Bg2 f3 Kf4 f1Q Ke5 f2 Rf3 Qd1 Bh1 f1B Bg2 Qb3 Bh1 Bg2 e3 Rd4 Nd3 Bc3 Nb2 Bh3 Bg2 Be1 Bh1 Bf2 Bg2 Bf5 Bh1 Kf7 g8B+ Kg7 g6 Bg4 Bh7 Rd1 Qc6 Bd5 Rhf5 Qc4 Bg2 Rh1 Qd6 Bc6 Qdd5 Qb3 Bg8 Rh3 Bf7 Qc8 Be8 Ba8 Bc6 Qa2 Bf1 Qd7 Bd3 Qf7 Bc2 Kg8 g7 Qa7 Nd7 Kh7 g8B+ Kg7 Bh7 Qb7 Bg6 Kg8 Nf8 Qc8 Bb3 Qb7 Kd4 Nh1 Bb6 Bh2 Bc7 Ng3 Ke5
Knn4B/3Nb3/2QR2pq/1r1R1r2/3nq1Q1/1B1n1B2/bP2R1P1/NRN3kr b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf8 h6 Qd6 Nf3 Qe5 Ng1 Qg7 hxg7 Be6 Qa4 Bg4 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b6 a5 d3 f5+ Ke5 h5 e4 f3 d6 a4 b7 f4 d7 a3 d8Q h4 Be2 f2 Qd7 f1Q Nd2 f3 Rb1 f2 Bf3 a2 Ne2 Ne7 g8B a1N Bb3 h3 Qe8 h2 d4+ Kb6 d5 Kc5 d6 Nc2 d7 Ra5 d8R Rb5 Rd6 Be6 Rg1 h1Q Qd7 Qe1 Qc6+ Kb4+ Rd5 Qh6 Rh1 f1R Rh4 Na6 b8N Nc8 Nd7 Nb8 Rh5 Bc5 Rd6 Nd4 Rg5 Bg8 Rf5 Rh7 Rg5 Rf7 Kd5 Rh1 e5 Rf6+ e6 Rf5+ Ke4 Bf7 e7 Bg8 e8R Bc4 Ba4 Ba2 Nb3 Kc4 Na1 Qb4 Bf4 Qe1 Qa8 Ba3 Be5 c5 Qc6 Qeh4+ Ke3 Qg4 Nc1 Qe4+ Kf2 Bb4 Bh8 Ba3 Qd2 Bb4 Qf4 Ba3 Qg4 Bb4 Ne2 Kd3 Bb3 c4 Nc1+ Kd2 Kg3 Ke1 Re5 Kf1 Red5 Rf4 Rge5 c3 Re8 c2 Ree6 Qd3 Re8 Rf5 Re2 Rg5 Kf4 Kg1 Qb6 Qc4 Ke4 Rf5 Qc6 Bc5 Re6 Be7 Red6 Rb6 Re5 Qd3+ Kd5 Qe4+ Kc5 Rb4 Rd5 Rb5+ Kc4 Kh2 Nd3 Rb7 Kc5 c1N Rf2 Nce2 Nc1 Nf4 Rd2 Rb4 Re2 Kg1 Qb5 Na7 Kb6 Nd3 Kb7 Nc8 Qb6 Rb5 Ka8 Bd8 Qc7 Be7 Qc6
3R2rN/3R1q2/1Qbrr1pQ/bN3B1R/3QBP1q/2P2bk1/nr5B/1R2n1K1 b - - 0 1 illegal: No possible last move
n1r3nK/1BR1N1N1/3Qn1p1/k2QbPRP/1r2q1Bq/6N1/3B1rb1/3QB1n1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 e5 Ke4 d6 f4 Kd7 h4 Kc7 b4 Kb6 c4 g6 c5+ Kc7 f6 d3 c6 Kb6 f7 a4 h6 d2 f5 a3 c7 a2 h5 Ra6 h7 Nd7 Nc3 Ne7 Nge2 Ng8 Ng3 Ra4 Rg1 Bg7 Be2 Qh4+ Bg4 Ba6 Kd5 e4 Ke6 e3 f8N d5 Kf7 d4 c8B e2 Ne6 e1N Bb7 Be5 Ng7 d3 Rb1 a1N Nd5+ Ka7 Rb2 Nac2 Ne7 Nd4 Rc2 Ne6 Rc7 Nf3 Rg2 Ng1 b6+ Kb8 b5 Rb4 Qf3 d1Q Bd2 Qe2 Qd5 Qe4 Be1 Ngf6 Bd2 Rc8 h8Q Ng8 Be1 Ngf6 Qd8 Ng8 Bd2 Ndc5 Be1 d2 Q8d7 d1R Q7d6 Rc1 Qd1 Na4 Q6d5 Rc2 Bd2 Nf6 Be1 Ne8 Kg8 Ra2 Kh8 Rf2 Ba8 Bb7 Bd2 Ba6 b7 Ka7 b8B+ Kb6 Bb7 Ka5 Be1 Nb6 Ba7 Na4 Be3 Nb6 B3d2 Na8 b6+ Nc5 Bc6 Bf1 b7 Nf6+ Qg8 Nb6 b8Q Ne6 Bb7 Na8 Qd8 Ng8 Qd6 Re8 Qbd8 Rf8 Q8d7 Re8 Q7c6 Rc8 Qcd5+ Nc5 Ne2 Bf6 Bh3 Be5 Rg5 Bg2 Bg4 Nf3 Ng3 Ng1 Qd3 Ne6 Q3d5+
n2NQ2b/1r2n1rB/kbRB1Pb1/3q4/n1N1Qb1P/1p3q1B/R1B4N/1Q2K3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 d5 a4 Kd7 f4 Kc7 h4 e5 c6 Kb6 f6 g5 c7 e4 f5 e3 a5+ Ka6 f7 b5 c5 g4 c6 g3 f6 e2 h6 g2 h7 b3 Rh2 b4 Qd2 b2 Na3 b1N Nf3 g1B Qa2 b3 Bf4 d4 Bh3 d3 Bd6 Bb6 Nc4 Bg7 f8Q Nc3 Qe8 Ne7 Rc1 Bf5 Qb1 Ra7 c8B+ Rb7 c7 Bg6 Bcf5 Na4 c8B Rg8 h8N Nd7 Nf7 Bh8 Rf2 Rg7 Nh2 Ng8 Qe4 Ne7 Rc2 Qg8 Nd8 Qd5 Rc3 Ndc5 Bcd7 Ne6 Bc6 Nc7 Be8 Bf7 Bh7 Na8 Bed7 Bg6 Bdf5 Be3 Rc1 Bf4 Rg2 Kb5 a6 d2+ Kf2 d1Q a7 Q1d3 Ke1 Qf3 Rc2 Ka6 Ra2 Nc8 Qe8 Ne7 Bc2 Qc5 Rg5 Qcc6 Rc5 Qfd5 Kf2 e1B+ Ke2 Ba5 Kf1 Qd7 Rc6+ Bb6 Ke1 Qg4 Rc5 Nc7 Rc6 Qgf3 a8Q+ Ra7 Qc8+ Rb7 Qe6 Na8 Qe4
N1BBK1Q1/2Q2nBn/5PqR/r3NP2/4qb2/2pNRn1Q/b3b1kn/N4r2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 f6 Kf7 Ke2 Kg6 Kf3 Kg5 Ke4 a5 Ke5 c5 d4+ Kg6 Bg5 h5 f4 c4 b4 c3 g4 e6 d6 h3 d7 h2 b6 a4 b7 h4 b5 h3 b6 a3 d5 a2 d6 Nh6 Nf3 Qe8 d8Q Ra5+ Bb5 Rg8 d7 Bb4 Re1 h1B Qc7 h2 d8B Ba3 Nbd2 Bc1 Kd6 e5 Nb3 e4 Ba4 e3 Bd7 e2 Qd5 Qe3 Qe6 Nf7+ Ke7 Qd3 Rb1 a1Q Bh6 Qa4 g5 Kh5 Ne5 Kh4 Na1 Kg3 Rb4 Bd5 Qh3+ Kf2 f5 h1N g6 Ng3 g7 Qd4 Ng6 Nf1 Nf4 Ba2 Be6 Nd7 b8N Qd3 b7 Nf8 Nd7 Nh2 b8N Qg3 Nb6 Ba6 Nc6 Nh7 Na8 Re8+ Kd7 Qg6 g8Q Bd2 Bg7 Be3 Rd1 e1N Rd3 Nef3 Re4 B6c4 Rdd4 Bf1 Nd3+ Kg1 Rh4 Bf4 Rh6 Qc4 Re4 Qb4 Be7 Rb8 Re2 Qe4 Bd8 Rb1 Re3 Be2 Ke8 Rf1 Nce5 Kh1 Bc8 Kg1 Qh5 Kg2 Qh3+
1r1N4/Q1b1qR2/rBbRP1R1/1qk4K/3qPqB1/3n1np1/BQNR4/3rN3 b - - 0 1 illegal: No possible last move, all moves rejected
n5qB/1qR1Q3/1Br1PQ1r/Pb1Qq2R/n1N4b/1k2B2p/b2RBN2/3bK3 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Ke7 a4 h5 e4 f5 d4 c5 e6 Kd6 a5 b5 e7 f4 e8Q b3 g6 c4 g7 b4 g5 h4 g6 c3 Rh2 h3 Na3 b2 Be3 b1B Qh5 b3 Qf7 b2 Qh6 c2 Nf3 Ne7 g8R Ra6 Ne5 f3 Rd2 Nd7 Ng4 Nb6 Nf2 Bg4 Be2 Ba2 Rc1 Nec8 g7+ Qf6 Qhg6 Rh6 Rh8 b1Q g8Q Na8 Qb7 Qe6 Qf6 Rc6 Qbh7 Be7 e5+ Kc7 Qe4 Qb7 Nc4 Ncb6 d6+ Kd7 d5 Na4 Qgg5 Qg8 Rh7 Rg6 Rh5 Rh6 Rcd1 c1Q e6+ Kd8 d7 Kc7 Qd3 Qcb2 Rc1 Qe5 Qb3 Ra6 d6+ Kc6 Qd3 Kb5 d8B Kb4 d7 Rc6 Qd5 Kb3 Bdb6 Bd8 Qff4 Bf6 d8B Be7 Qg7 Bg5 Bf6 Bh4 Rg5 Bh5 Qe7 Bg4 Bh8 Bh5 Qff6 Bg4 Kd1 Bh5 Ng4 f2 Rcc2 f1B Nf2 Bg4 Ke1 Bh5 Bf3 Be2 Bg4 Bd1 Be2 Be8 Rf5 Rc8 Rc1 Bb5 Rh5 Rc6 Rcc2 Rd6 Nb2+ Ka3 Rc7 Kb4 Qd4+ Kb3 Nc4 Rc6 Qd5
1B6/k1qb1Rr1/3qp1P1/1QNQ2b1/1PB5/br1B1R1R/b1Q2KN1/1nn1Rn2 b - - 0 1 illegal: No possible last move, all moves rejected
N1rR3Q/1N1KBRQb/rb1P4/2r1q3/n2QB1p1/1N1Qn2k/4P2q/1nR1r3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 g5 b4 a5 b6 c5 b5 f5 h6 c4 h7 c3 b7 a4 b6 f3 Nd2 c2 Nb3 a3 Qd3 f4 Bg2 a2 Ba3 f2 Rf1 Be7 Be4 a1R Nh3 f3 Nf4 c1R Ne6 Na6 b8R g4 Nc7 Bg5 b7 Qe8+ Kd6 Bf5 h3 Kg3 h4 Nf6 h5 Nc5 h6 Qe5+ Kc6 Ra5 Na8 Rf8 Rhg1+ Kh3 Rc8 Be3 b8N Kh2 Nd7 Na4+ Ndc5 Kh3 Bb4 Rd8 Rb8 Rd6+ Kc7 Rb6+ Kd8 Rab1 Nb7 Rba6 Be7 Rc4 h8Q Rbc1 Qf8 Rb5 d6 Nd5 d7 Ndc3 d5 Bb6+ Nc7 Nb1 h7 R4c2 h8Q+ Bh7 Qf7 Rc6 Qfg7 Rbc5 Ke8 Rd1 d8Q Rdc1 Rd1 f1N Na8 Ne3 Rdf1 f2 Qd6 Rc7 Rd8 Rc8 Kd7 Qh2 Qde5 Rd1 Qed4 Qe5 Re1 f1Q d6 Qff4 Ref1 Qh2 Rf7 Rdc1 Rgf1 Rd1 R1f6 Rg1 Rf1 Rh1 Rd1 Re1 Rc1
1KBQ4/7r/1n1P2Rk/2BbNpq1/2bQN2B/q3rqRb/nN3P1N/5Q1q b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 Kd2 Kf8 Kd3 Kg7 Kc4 a5 Kc5 e5 b4 f5 g4 h5 g5 c6 b6 e4 g6 e3 b7 h3 d7 h4 Kd6 a4 b5 c5 b6 e2 Nc3 e1Q Bg5 a3 Ba6 h2 Nf3 c4 Rg1 h1B Nh2 a2 Na4 h3 Nb2 c3 Bh4 c2 Rg3 Nc6 b8N c1Q b7 Qdg5 Kc7 Qce3 d8Q Rh7 d6 Kh6+ g7 Nge7 d5 Be6 d7 Nb4 Nc6 Nc8 b8B Bg2 Ba7 Nb6 Bc8 Qh1 Ne5 Qf3 Qf1 Rb8 d6 Bc4 Qh8 Ra8 Rb1 a1Q d8Q Qaa3 Re1 Na2 Re2 Na4 Bc5 Nb6 Re3 Ra7+ Kb8 Re7 Re4 Re8 Reg4 Re6 Ned3 Re3 g8N+ Kg6 Nf6 Kh6 Qc1 Bf1 Ne4 Bg2 Qg1 Bf1 Qd4 Bg2 Nf1 h2 Ne5 Bh3 Qg2 Qd1 Qg1 Qhf3 Qg2 h1B Nh2 Qc1 Qf1 B1g2 Qe2 Qh1 Qed3 Bf1 Qb1 Bd5 Qa1 Bfc4 Qf1 Qf6 Rg7 Qg5 Rg6+
1b6/2nbKNRb/3PPQ1q/4r3/1bq1pN1B/R1NNB3/1kr1Q2n/1n4QB b - - 0 1 illegal: No proof kernel
n2K1nrb/Qr3r2/RR1PP3/p7/B1BnN1Q1/4B1N1/k4NqQ/3bqnQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 c5 d4 f5 g4 h5 g6 h4 g5 c4 g7 h3 g6 h2 b6 f3 b7 c3 d6 a6 d7 f4 Ke6 c2 e5 Kb3 d5 f2 Nh3 f3 Bc4+ Kb4 Nd2 f1N Ne4 f2 Qg4 Rh6 Ng3 Qc7 Be3 Nf6 g8Q c1N g7 Be7 b3 Kc3 b4 Kb2 b5 Rh7 b6 Ne8 Kf7 Nb3 d8N Nd7 b8Q Bg5 b7 Qa5 Qa7 Nc7 b8Q Bf6 Ne6 Nf8 Neg5 Qe1 N5e4 a5 Rb1+ Ka2 Bb5 Rh8 Ba4 Nd4 Rb6 Rh7 Rg1 h1Q Rg2 Nce6 Ke8 Ba6 Rh2 Be2 Ra6 Qg2 d6 Nd2 Qd8 f1R Nhf2 Bd1 Qh8 Nf4 g8B+ Nf4e6 Rh1 Rf7 Qh2 Bh8 Qdb8 Nc7+ Kd8 Rg1 Qc5 Ra7 Qcb6 Rb7 Q8a7 Nf1 Qc5 Nb3 Qd4 Rf3 Bc4 Na8 e6 Rff7 Qh7 Kb1 Rh5 Ka2 Rb5 Ka3 Qdg7 Nd4 Rb3+ Ka2 Qh2 Rh1 Qg1 Rh5 Qh6 Rg5 Qhh2 Rg8 Rbb6+
2R2rrb/4Nqr1/2PBb3/Nn1qb3/1pN3BR/Qr6/QN2k1BP/1R4Kn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 a4 Kf7 c4 Kf6 f4 b5 Kf2 g5 a5 e5 a6 d5 c6 e4 h6 b3 h7 g4 a7 b2 c7 d4 c5 d3 c6 d2 Na3 b1R Qa4 d1Q Bg2 Be6 c8B Bg7 Nh3 Qb3 Kg1 e3 Nc4 e2 Na5 e1B Qa2 g3 Nf2 Na6 Ba3 Qdd5 Bd6 Ne7 Nd3 Rg8 h8R Nc7 Rh4 Bh8 Nb2 Qbc4 Bd7 Raf8 a8N b4 Nb6 Qb3 N6c4 Nb5 Qa3 Qbf3 Bc8 Qh5 Qa2 Qf7 Bd7 Kg7 f6+ Kg6 f5+ Kg5 Bc8 Qg7 f7 Bc3+ Bf1 g2 f6 Nf5 Bd7 Rc8 f8N Qf7 Ng6 Rcf8 Ne7 Be5 Qa3 Ng3 Bc8 Bh3 Bg4 Kf4 Ra2 Qh5 f7 Ke4 Na4 Rb3 Re2+ Kd3 Qa2 Rb8 f8Q Qhf7 Qh6 Rbd8 Qc1 Rdf8 Qca3 Rg7 Bf3 Be6 Bg4 Bf6 Kf2 g1R Bg2 Rgg8 Re4 Be5+ Rf4 Ra1 Rb1 Nh1+ Kg1 Rg7 B4h3 Rfg8 Nab2+ Ke2 Rff1 Qe8 Rf8 Qf7 Rc8 Rf8 Rf1 Rd1 Bf5 Rd4 Rd1 Rdg4 Rb1 R4g6 Bh3 Rgg8 Bf5 R6g7 Bg4+
1R6/n4Q2/1QP3Qn/1qbK1pr1/N1BB1k2/B1N1qr2/2Bb1PR1/bqb2N2 b - - 0 1 legal: proof: e4 b5 g4 h5 d4 hxg4 a4 d5 axb5 c5 dxc5 d4 Ra6 Bb7 Ra1 Bd5 exd5 Rh3 Bc4 Rh6 Bf1 Rh8 Ke2 Kd7 Kd3 g5 Ke4 e5 b4 a5 h4 d3 c4 a4 d6 Ke6 d7 d2 c6 a3 c5 g3 h5 f6 h6 g2 h7 a2 b6 g4 b5 g3 c7 Bd6 c8B Ra6 b7 Qe8 b6 Nh6 Qc2 d1Q Nc3 Rf8 h8B Qe1+ Nge2 g1Q Rh2 g2 Rb1 a1B Ba3 Nc6 b8Q Ra5 b7 Na7 Qc7 Qh1 b8N g1B+ Rg2 Bh2 Rb4 Bf4 Na6 Bc1 d8Q+ Qd7 Bb7 Qb5 c6 Qd2 Ng3 Bc5 Bd3 Qhd1 Qb1 Qb3 Qc2 Qb1 Nf1 Qg5 Qh7 Qg3 Qb6 Kd6 Qf7 Qg5 Kf3 e4+ Ke2 e3 Kf3 e2 Ke4 e1B Rb3 Bb4 Nc5 Bed2 N5a4 Bc5 Bc8 Qg3 Bf5 Qg5 Bc4 Qf4+ Kd3 Ke5 Rb4 Qg5 Bg7 Kf4 Bh8 Bd6 Kd4 Bc5+ Kd5 Qg3 Be4 Qe3 Qd3 f5 Bd4 Rg8 Qe2 Rg6 Bc2 Rg5 Qeh5 Ra6 Qa5 Rb6 Qhg6 Rb8 Qb6 Rg8 Qgh7 Rg3 Rb3 R8g5 Qhg6 Rf3 Qa6 Qa5 Rb8 Qab5 Qb6
R2b2N1/r5r1/1qP4K/1bP2k2/3p1NBn/n1Nn4/1qQ1BNRQ/qn2Q1B1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Kd2 Kf7 Ke3 Kf6 Kf4 a5 c4 h5 g4 d5 b4 e6 g5+ Kf7 g6+ Kf6 g7 a4 c6 h3 b6 h4 b5 h2 b7 d4 c5 h3 b6 a3 Be2 a2 Qc2 Na6 b8Q Be7 b7 Nh6 g8B Rh7 Be3 Nb4 Nc3 Qb6 f3 Bd8 Qe5+ Ke7 Kg5 Nd5 b8Q Ba6 f4 Rg7+ Kh5 Ra7 Bg4 Bb5 f6+ Kf8 f7 Ke7 f8N Nf5 Qee4 Kf6 Ng6 Nh4 f5 e5 Kh6 Qb7 Qe2 Qb6 Q4c2 e4 Bf2 e3 Qe1 e2 Nf4 Ne3 Bd5 Nf1 Bdf3 Nd2 Qc7 Nb1 Be3 Rg5 Qh7 Ke5 f6 Rgg7 f7 Kf6 f8N Ke5 Qf2 e1N Be2 Nd3 N8g6+ Kf6 Ne7 Ke5 Nf3+ Kf6 Rc1 h1Q Ng1 h2 Ngh3 Qg2 Rg1 h1Q Qe1 Qf2 Qh8 Ke5 Ng8 Qfg2 Bh5 Kf5 Nf2 Qgh2 Rg2 Q1g1 Qed2 Qc1 Qdd1 Qb2 Qg1 Qh1 Bhg4+ Ke5 N2h3 Ra6 Bf5 Ng6 Qcd1 Nd2 Bfg4 Ra8 Kh5 Ra4 Rb1 a1N Rc1 Nc2 Ra1 Ra8 Ra7 Na3 Qc2 Rb8 Qf2 Rb7 Ra8 Qha1 Qe1 Ndb1 Bg1 Rd7 Nf2 Ra7 Nf6 Ra5 Kg5 Raa7 Qh2 Nh4+ Kh6 Rgc7 Bh5 Rg7 Ng8 Kf5 Bhg4+
nq1b1NQ1/3N4/k1P1b1pR/1P3n2/1BbQ2Rb/2K1Rq2/B2rQ2B/1rn1Q3 b - - 0 1 illegal: No possible last move, all moves rejected
1Q3Q1r/q2RK2n/nnp4B/1rPRB3/3B2b1/1Prk1Nb1/1n4NQ/2q3BN b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 Na6 gxf5 Nb8 Bh3 Ba6 Bg4 hxg4 Ra5 Bb7 Ra1 Bc8 Kd2 Ke7 Kc3 g5 Kd4 d5 Kc5 a5 h4 d4 c4 a4 e4 c6 f4 a3 h5 g3 b3 g4 e6 Kf6+ e7 d3 e5+ Kf7 e6+ Kf6 b6 d2 b7 g2 h6 a2 h7 g3 Na3 Qa5+ Kd6 Bd7 c5 Qd8 Qc2 d1N Nf3 g1Q Rh5 g2 Be3 Qf1 Bg1 Qe2 Nc4 Bg7 e8Q Bf8+ e7 Qe4 Ne3 Nb2 Rd1 Na6 b8B Qa5 Bc7 a1N Qb8 Bg7 Rg5 Qc4 e8N+ Kf7 f6 Bg4 Qe2 Qc1 Rgd5 Kg6 f7 Nc2 f8B Nf6 Ke7 Na3 Nd6 Nac4 Ne4 Nb6 Ng3 Ra7 R1d2 Rb7 Nh1 Bh6 Qf2 Bg5 Rd7 Bh4 R2d5 Bg3 Be5 Qa2 Bh6 Qa5 Bh2 g1R Ng2 Kf5 Qe2 Rd1 Bg1 Rd3 Qd2 Ke4 f5 Rc3 Bed4 Rg8 h8B Nh7 Bhe5 Rh8 f6 Qa2 Qf2 Kd3 f7 N6c4 f8Q Rb5 Qbc8 Nc7 Qb8 Qa7 Ne3 Na6 Qh2 Nb6 Ng2
1r3r1N/2n2Q2/qRp4P/QR3Q2/3nN2R/qN1b1P2/1n5B/bNrB1knK b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 h4 Kf7 b4 Kf6 d4 e5 h5 a5 d6 g5 h6 a4 d7 c6 f3 g3 d5 a3 d6 e4 b6 Ke5 f6 g2 Kf2 a2 b5 g4 b7 Ra3 b6 Na6 b8N Bg7 b7 Qf8 d8N Nc7 d7 Ra8 f7 Ne7 Qd3 Nf5 Rh4 Qa3 f8Q Nd4 Na6 Rb8 Ne2 g1N Kg2 e3 Nec3 g3 Kh1 e2 Qf7 e1N Nc5 Rf8 Be2 Qa6 Qdg6 Nd3 Bd1 Nb2 Nb3 Bf6 Qd3 Qa3 Ne4 g2+ Kh2 Kf5 Bf4 Qa6 N1d2 Qa3 Rb1 a1Q Qc2 Qa6 Be5 Q1a3 Qc5 Ra8 b8R Bb7 Qb5 Bc8 Rb6 Rb8 Qe7 Bg7 Nf7 Bh8 d8Q Be6 Rb7 Bc4 Rb6 Bd3 Qa5 Bg7 Qdd5 Bf6 Nh8 Bg7 Nf6 Kg5 Qef7 Kf5 Re4 Kg5 Bf4+ Kh4 Qf5 Na4 Ng8 Nge2 Na1 g1R Bb3 Nde6 Nf6 Rc1 Bd1 Ng1 Reb4 Qb3 Kh1 Qa3 Qfd5 Kh3 Bh2 Na8 Rg4 Nac7 Nfe4 Bb2 Qdb5 Nd4 Qbf5 Bc3 R1b5 Bb2 Nab3 Ba1 Be5 Nb2 Nb1 Qa4 Ned2 Qa3 Rf4+ Kg3 Rh4+ Kf2 Ne4+ Kf1 Bh2
5n2/1nQ2Q2/NPrN1q1R/Bk1Kb3/2R2q1Q/P5Rq/B2p4/nbq1rR1B b - - 0 1 illegal: No proof kernel
1NnQ1qbQ/1q4n1/1pR3k1/1Q2B3/1b2PN2/P2B1r2/2RnR1B1/2n1KBrb b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 f5 d4 Kf7 a3 h5 e6+ Kg7 g6 c5 e7 h4 e8R b6 g5 h3 d6 f4 d5 h2 d7 b3 d6 c4 Nh3 f3 Qd5 c3 Ra2 c2 Nf4 b2 Qb5 Rh5 Nd2 b1Q Nb3 Nf6 Ne6+ Kg8 g7 Kf7 g8B+ Kg6 Nbd4 Qb3 Nc6 Qd5 Bf4 c1N Be5 Rh3 Rc2 Nh5 e3 Qe7 d8Q Ng7 d7 Rg3 Rg1 h1B Rgg2 Qec5 Rge2 Rg1 e4 Ba6 Qc8 Ra7 d8Q Rf7 Re7 Bb7 Rc7 Qe7 Ned4 Rf4 Be6 Ba6 Bh3 f2+ Kd2 Qdd7 Bhg2 Rf3 Kd1 Qf5 Ne6 Qef7 Kd2 Bb4+ Kd1 Bb7 Qh8 Ba6 Qcd8 Qe7 Rc8 Qb7 Rc7 Qf8 Rc8 Nd7 Nb8 Nf6 R8c6 Nd5 Qg8 Kh5 g6 Ne7 Qh8+ Kg4 Qbd5 Nc8 Qa5 Bc4 Qb5 Ne8 g7 Bd5 g8B Ng7 Bh7 Kh5 Bg8+ Kg6 Ng5+ Qf6 Be6 Bb3 Bc4 Qd6+ Bd3 Bg8 Ne6 Qf8 Bh3 Be7 Kd2 Bd6 Bfg2 f1N+ Ke1 Nd2+ Bf1 Be7 Bg2 Bb4 Nf4+
bb1r1n2/k1r2RN1/Bp2RPq1/Q1P1nN2/3B1QQ1/r1qn1R2/7K/R1nN4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 d5 f4 Kd7 Kf2 Kc7 Kg2 e5 h4 g5 a4 g4 h6 e4 f6 d4 f7 g3 f5 b6 h7 Kb7 a5 e3 c6+ Ka6 c7 d3 f6 d2 h5 b3 c5+ e2 h6 b2 Nc3 b1R Rh3 Nc6 Nf3 Bg4 c8R Qe8 Rc7 Rd8 Bb2 Bd6 f8N Qg6 Ne6 Ne5 Nh4 Ne7 Nf5 Bf3+ Kg1 g2 Kh2 g1N Neg7 Be4 Rf3 Ba8 Rb7 Rhf8 h8Q Rf7 h7 Bb8 Qf8 Rc1 h8R Rc2 Qc1 d1N Qg8 Nf2 Nd1 Nfd3 Bd4 Rc3 Qf4 e1Q Rh5 Ne2 Rg5 Kb5 a6 Nec1 a7 Ra3 Rg2 Ka6 Re2 Qc3 Rc7 Nd7 Re6 Nf8 Be2 Nc6 Rd7 Re7 Rc7 Ree8 Rf7 Ne5 Bf1 Re7 Be2 Be4 a8Q+ Ra7 Qc6 Rad7 Qb5+ Ka7 Qb4 Ba8 Qa5+ Kb7 Bf1 Rc7 Be2 Ne1 Ba6+ Ka7 Qh8 Ne1d3 Qhh4 Nh7 Qh5 Nf8 Qhg4
2Qr2qr/3kBBrn/P1N1n1BK/R6N/2N3P1/1R2r1bb/5Qqp/3N1R1b b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 h5 Ke3 c5 Kf4 b5 g4 h4 a4 c4 d4 e6 a5 h3 a6 b3 f6 c3 f7+ Kd7 d6 b2 g6 c2 g7 h2 d5 b4 Bd3 b3 Qd2 Nh6 g8B Qe7 Bg6 Nf5 Nh3 Qf6 Rf1 Bb7 Nc3 b1B Nd1 b2 Ra5 Qg7 Kg5 e5 f4 e4 Qf2 Nd4 f5 e3 f6 e2 Nf4 e1R Nh5 Re3 Bd2 c1Q Bb4 Be7 f8Q Bd3 Bf7 b1R Ba3 Qg8 Bc5 Rh7 Bb4 Rg7 Kh6 Bd8 Bc5 Qd2 Ba3 Kc8 d7+ Kc7 Be7 Ne6 d6+ Kc6 Ra3 Bc7 d8R Nd7 Rb8 Rb3 Qc8 Ndf8 d7 Nh7 Ra5 Rb2 Qe1 Qg2 Qf2 Rd2 d8N+ Kb6 Qe1 Bg3 Qf2 Bc4 Nc6 Rd8 Be8 Bb5 f7 Bd3 f8N Bb5 Bh4 Kc5 Nd7+ Kd6 Bef7 Bc4 Re1 Bd3 Nde5 Bf1 Na7 Bd5 Nac6 Be4 Rb3 Rb8 Qb7 Bd5 Qa8 Rbc8 Nc4+ Kd7 Bf6 Qf3 Nf4 Bh3 Bh5 Re8 Bhg6 Qh8 Bg8 Rcd8 Nh5 Qh1 Qb8 Qg1 Bg5 Bh1 Rf1 Qg2 B8f7 Qf8 Bg8 Qf7 Be7 Rf8 Qa8 Qe8 B8f7 Rh8 Qb8 Qg8 Qc8+
B1kn2N1/2R2rn1/PbbR1N1B/1b1r2bB/1p4B1/QK1n3Q/P6q/4N1qQ b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 b4 Bg7 bxa5 Bf8 g4 Kd7 d4 b5 Kd2 f5 Kc2 c5 e4 h5 a6 c4 g6 f3 g7 c3 g5 b4 g6 f2 d6 f4 d5 f3 e5 h4 e6+ Ke8 d7+ Ke7 Nd2 h3 Ne4 h2 Be2 f1Q Kb3 f2 Bh6 c2 Nf3 c1B Nf6 Qg1 Ne1 f1B Bg4 Ra7 Qf3 Qe8 Qh3 Bg5 Rd1 Kd8 e7+ Kc7 Rd3 Nc6 d8Q+ Kb8 Rd1 Bb5 Qa5 Bb7 d6 Nd8 d7 B7c6 Rd6 Rb7 Qa3 Rc7 Nd5 Nf6 g8B Nh5 Nf6 Ng7 Bd5 Qf7 e8B Ra7 Ng8 Qff2 Nf6 Be7 Bef7 Be3 Bdf3 Bb6 B7d5 Qe2 Bh5 Rf8 Bfg4 Rf7 Be4 Qgf2 Rg1 h1N Rg3 Qef1 Rgd3 Qh2 R3d5 Qfg1 Bg2 Nge6 g7 Nf2 g8N Ng7 Be4 Rc7 Rd4 Nd3 R4d5 Nb7 d8Q+ Rc8 Qd7 Nd8 Qf5 Rc7 Qff3 Rd7 Qh1 Kc7 Nh7 Bg5 Nhf6 Rde7 Rd7+ Kc8 R5d6 Re5 Bh7 Bg2 Be4 Bf3 Ba8 Bfc6 Bf3 Rf5 Bfg4 Rd5 Rc7+
1n1r4/Bq1R2K1/P2N2B1/3N2kp/rPr2qN1/2Qq2n1/2B1RRqQ/1bN3b1 b - - 0 1 illegal: No proof kernel
n2nr1QB/3KQ2r/P2Q1B2/3q2pR/1N1bPb1N/rBR3Q1/1q6/1R1k1b1r b - - 0 1 illegal: No possible last move
rBR3k1/qNB2nn1/P1Q3qr/1R2pPR1/Kb1n4/2R1n1N1/2B2N2/bbQ5 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 c5 d4 g5 Kd2 b5 Kc2 c4 a4 e6 d6 c3 Kb3 g4 d7 g3 d5 g2 d6 c2 a5 Ra6 f6 Nc6 f5 Ra7 a6 Qe7 d8B Rh6 d7 Ra8 Bc7 Qe8 Bd3 Bb7 Ra5 Ne5 Rh3 Be4 Bf4 c1B Ne2 g1Q Bc2 Qa7 Nd2 Bb2 Rc3 Ba1 Ng3 Bd6 d8N+ Kf8 f7 Nf6 Nc6 Kg7 f8R Qg6 Rc8 Ne8 Qb1 Kg8 Nd8 Ng7 Qc1 Nf7 Nb7+ Bf8 Bb8 Bd3 Bfc7 e5 Nd8 Bc5 Nde4 Bd6 Nf2 Be4 Nb7+ Bf8 Ka2 b3+ Kb1 b4 Rb5 b2 Ka2 b1N Kb3 Nd2+ Ka4 Rh7 h6 b3 h5 b2 Rd8 b1N Rd4 Bf3 Rg4 Na3 Rg5 Bd5 Bd1 Bb4 Bc2 Rh8 h7+ Kf8 h6 Be4 Ra5 Nb3 Rac5 Nd4 Rb5 Rg8 h8R Nc4 h7 Ne3 Bd1 Bb1 Bb3 Ke7 Bc2 Rd8 Rg8 Rd6 h8Q Rc6 Rc8 Rd6 Qh7 Rc6 Bd8+ Kf8 Qhh1 Kg8 Qh6 Qh7 Qhh1 Rh6 Qc6 Qg6 Bdc7+
1r4r1/1Nq3R1/P5Pp/nBQn1R2/N2B1q2/2bBb2n/k1K1b1Q1/2B1R1Nn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 b5 g4 e5 d4 c5 Kd2 b3 d6 b2 d7 e4 a5 e3+ Kd3 e2 f6 Ke6 g6 Kd5 f5 e1B a6 b4 g7 c4+ Kc2 c3 f7 b3+ Kd3 c2 g5 h6 g6 Ne7 g8B Bc3 f6 Nbc6 Rh5+ Nf5 Qe2 Na5 Rg5 Qc7 d8B Bc5 f8R+ Be6 f7 Rb8 Rh5 Bd7 Bdg5 Ng3 Qh2 Bg4 Qg2+ Bf3 Re8 Bb6 Re7 Nh1 Bce3 c1Q f8Q+ Kd6 Bc4 Rg8 Bb5 Kd5 Bf2 Q1f4 Rg7 Bc5 Nd2 b1N Nc4 b2 Kc2 Ba7 Bd3 Nd2 Re1 b1N Nb2 Ne4 Na4 Bc5 Be3 Nef2 Bc1 Nh3 Bf6+ Qf5 Be5 Qf4 Rf5 Bb6 Qh2 Be2 Qg2+ Ke6 Bf6 Ba7 Qc8+ Kd6 d5 Be3 Nb2 Kc5 d6+ Kb4 d7 Ka3 d8N Ka2 Bd4 Nd2 Na4 Ndc4 Nb7 Nb6 Qf8 Nd5 Qc5
1nn1N1Qn/1q1q2B1/p1k1Nn1b/1P3r1Q/R1K4P/2QNR3/2rN1q2/4BB1b b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 c5 b4 e5 h4 g5 f4 a6 d6 g3 b6 e4+ Kc4 g2 d4 e3 f6 g4 f5 g3 b7 e2 f7 e1N f6 Bh6 f8Q Nc2 d5 Nd4 f7 Nf5 Nf3 g1N Qg7 g2 f8B+ Nfe7 Ne1 Nf3 Rh3 g1Q Nd2 Nf6 Ra4 Ng5 Qh5 Qf2 Re3 Nf7 Nd3 Rg8 Qh8 Rg5 Bg7 Rf5 Qg8 Nh8 Bb2 Nbc6 b8Q Bb7 Bc3 Nc8 Qa7 Qe8 Qb6 Nb8 Qc6+ Kd8 d7 Ra7 Qb5 Kc7 d8N Qd7 Ne6+ Kd6 Nc7 Ba8 Ne6 Rc7 Qb6+ Rc6 Qa5 Qb7 Nc7 Kd7 Ne8 Rc7 d6 Kc6 Kb3 c4+ Kc2 Qb6 d7 Qa7 Qe5 Qb7 Ba1 c3 Kb3 c2 Kc4 c1Q+ Bc3 Qd1 d8N+ Kd7+ Kd4 Rc5 Ne6 Rc7 Qg3 Kc6 Kc4 Qg4+ Ne4 Qd1 Be1 Qdd2 Nb2 Qd6 Nd3 Qd7 Nd2 Kb6+ Kb3 Rc2 Qe5 Kc6 Qc3+ Kb6 Kc4 Kc6 Ra2 Rg5 Ra1 Rf5 Ra4 Qbc7 Nd6 Kb6+ Nec5 Bh1 Ne8 Qb7 Ne6 Kc6 b5+
8/rbqnNR1B/prq5/P1n1nR2/n1B1P1kN/1QR5/KR1B4/bN1bQ3 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxc5 Ng8 d4 Kd7 Kd2 b5 Kc3 f5 Kb3 g5 h4 a6 e4 g4 a4 g3 h6 f3 c6+ Kd6 h7 g2 a5 b4 h5 f4 h6 f2 c7 f3 Ka2 Qe7 Bc4 f1Q Qb3 f2 Bd2 Bb7 c8B Qc1 Rh5 f1B Nf3 g1N Bf5 Nd7 Nh4 Ngf6 Rg5 Rg8 h8N Bg7 h7 Nf3 N8g6 Rgb8 h8R Nfe5 Rf8 Ra7 Rf7 Nc5 Rg3 Qd7 Ne7 Be2 Rc3 Qc6 Bh7 Nfd7 Rf5 Bd1 Rf7 Kc7 d6+ Kd8 d5 Ke8 Rf1 Bf6 Rf5 Kf7 Na3 Qc7 Rb1 Qc2+ Rb2 Kg7 Rg5+ Kh6 Nb1 Qc1 Rg7+ Kh5 Rf7 Bg7 Rf5+ Kg4 Rf7 Bc6 Rf5 Rb6 Rf7 Bb7 Rf5 Nf8 d7 Bf6 d8R Nfd7 d6 Qc2 Qa3 Qa4 Rf8 Qac6 Rf7 b3+ Ka1 Nb8 d7 Bg7 d8Q Nbd7 Rbc2 b2+ Ka2 Bh8 Qb3 Bf6 Na3 b1N Rb2 Bg7 Qf8 Bh8 Qh6 Bf6 Qe3 Bh8 Qe1 Bf6 Re3 Nc3+ Ka1 N3a4 Ka2 Bg5 Rd3 Be3 Nb1 Bd4 Rc2 Bb2 Rdc3 Ba1 Rb2
1r1R4/2QqbB1P/3rNBn1/2N4r/3P1q2/B1Rbb2Q/K3kQpB/b2nN3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 h4 Kf6 b4 c5 d4 a5 Kd2 e5 Kc3 g5 Kb2 a4 d6 c4 h5 c3+ Ka2 c2 h6 a3 h7 g3 b6 g2 b7 g4 b5 g3 d7 e4 b6 e3 Nf3 g1B Bc4 g2 Qd3 e2 Nbd2 e1R Rh3 Re5 Ne1 Na6 b8Q Nc7 b7 Ra6 Bf7 Nd5 Nb3 Be7 Qc7 Rd6 b8B Ba6 Nc5 Be3 Qc3 Qc8 d8B Bd3 Bb2 c1Q Rf3 Kg7 f6+ Kh6 f5 Kg5 Qb3 Qd2 Rc1 Kg4 Rc3 Qd7 Rg3+ Kf4 Rg5 Nh6 Rg8 Ng4 Rf8 Nf2 Re8 Bf8 Be7 Kg4 Rd8 Nf4 Qe6 Nd1 Qb3 Bf2 Qe6 Red5 Qe3 Ng6 Qh3+ Kf4 Be8 Bf1 f7 Be3 f6 Qc1 Qa5 Rg8 Rc8 Bg1 Kb3 a2 Ba3 a1B Ka2 Bd3 Qb6 Rh5 Bc7 Bh6 f8N Bg5 f7 Qe3 Bed8 Qf3 Bb8 Ke3 Nfe6 Rd5 f8Q Ke2 Bh2 B1e3 Qc7 Rd6 Qf4 Bf6 Bf7 Rf8 Qfh4 Qf4 Rb8 Bh8 Bg5 Bf6 Q4g3 Be7 Bf6 Re8 Ra8 Rb8 Qgh4 Rb7 Rd8 Rb8 Qf2+
2Rb1r2/NB4RP/n1KQbN2/Nn1rpq1P/5b2/4Q3/R1N1k2B/r1Bq1r2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 Rh6 gxh5 Rh8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 b4 g5 h4 g4 f4 c6 h6 a4 h5 e3 h7 e6 f5 g3 f6 a3 b6 g2 b5 a2 f7 e2 b7 e1Q b6 Qd7 Nc3 Nh6 Nge2 g1R Bg2 Ra7 Ne4+ Ke7 Kc5 Rg8 d4 Rg4 Qd2 Rf4 Qe3 Rgf1 Nf6 Qd1 Rg1 Nf5 Bf3 Ra8 Rg7 Nd6 Be4 Nb5 d6+ Kd8 d5 Ra5 Bf3 Be7 Nd4 Rf5 Nc2 Na6+ Kc4 c5 b8R Rf4+ Be4 R4f3 b7 Rf4 Ra8 R4f2 b8N e5 f8B Q7g4 d7 Kc7 d8N Kb6 d6 Qf5 Ndc6 Bd8 Na7 Be6+ Bd5 Rf3 d7 R3f2 Nbc6 Rf3 Rb1 a1R Rb2 R3f2 Rc8 Rf3 Qe2 R3f2 Ra2 Rf4+ Kb3 c4+ Kb2 Nc3 Qg2 Qg5 Ne4 Bc7 d8Q Qg6 Qe7 Bd8 Qgg5 Rf7 Bf4 Qf5 Bh2 Rc5 Ka3 Rb5 Nd6 Kc5 Bh1 Rf6 Ne4+ Kd5 Qb4 Rc5 Be7 Rf8 Na5 Rb5 Qc1 Rc5 Bg5 Rb5 Ne1 Kd4 Nc2+ Kd3 Nf6 Ke2 Bb7 Rd5 Qe7 Nb8 Kb4 Nb5 Qd6 c3 Na3+ c2 Bh6 Rd4+ Kc5 Na6+ Kc6 Rd5 Qf4 Bg8 Qd4 Be6 Bd2 c1B Nc2 Bb2 Q4c5 Bd4 Qc3 Be3 Bc1 Bf4 Qe3+
b1N3q1/5NRp/Q3nb2/1qQn2q1/1Q1NkR1B/N1P1bR1P/1rr5/2B3bK b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f4 Kf7 f6 g6 Bd3 Ke6 f7 Kf6 f5 Ke5 f6 Ke6 Bf5+ gxf5 Kf2 Ke5 b4 a5 g4 d5 Kg2 a4 b6 f4 b7 a3 b5 a2 b6 d4 g5 d3 c6 d2 h3 f3+ Kh2 f2 g6 f1Q c7 Nd7 b8Q Bb7 c8N+ Ke4 g7 e5 Ne2 Nc5 Rg1 Ne7 g8N Nd5 Nd4 Ne6 Na3 Bc5 f8R Qb5 f7 Qg5 Qf1 d1Q Nh6 Qdg4 Kh1 Ra5 Qc4 Ba8 b7 Ra4 Rf1 Rb4 Rf5 Rb2 Qa4 Qg8 Qa6 Q4g5 Qc7 Bb6 b8B Ba7 Rb1 a1B Qc5 Bb6 Bc7 Ba7 Bd8 Bb6 Qb4 Bc5 Nb3+ Bd4 Qc5 Be3 Nd4 Qe7 Qb4 Bd2 Nb3+ Ke3 Rh5 e4 Nb6 Ra2 Bb2 Qg4 Re5 Rg8 Nc8 Kf3 Rh5 e3 Re1 e2 Rg1 e1B Bc1 Bf2 Rg5 Bad4 c3 Rb2 Re5 Qee8 Bh4 Qd8 Rh5 Ke4 Rg3 Rg5 Rg8 Qe7 f8Q Bde3 Nf7 Bg1 Rf3 Qd8 Qfd6 Qf4 Rg7 Rgg2 Rf5 Rgc2 Qdc5 Qg8 Qba5 Bf6 Nd4 Qh6 Qab4 Qg5 R5f4+
R2n1q2/1B2nrP1/2qnb1Qk/RnNB1R2/1B2Q1K1/rQ4P1/p2b2rN/5B2 b - - 0 1 illegal: No possible last move, all moves rejected
k2K2bR/Qq2NRpn/3b1N2/BbQBPq1P/2r3rn/2n4n/1Q1RR3/3B4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 a5 Kf4 c5 Kf5 Kc7+ e6 Kb7 h4 a4 b4 g3 e4 a3 d4 a2 h5 f6 e5 g2 d6 c4 d5 c3 b6 c2 d7 Rh6 d6 Ra5 e7 Na6 Ke6 Qe8 b5 Rh8 Bc4 f5 Nf3 g1N Qd5+ Kb8 b7 f4 Nc3 Qd8 e8B Ra4 Ne4 Rb4 Nd4 f3 Rh2 f2 Bd2 c1N Qc5 f1B Nf6 Qb6 Nf5 Ne7 Bd5 Ng6 Re2 Rg4 Ne7 Nh3 Ba5 Nh4 Bg6 Rh6 Bc2 Nb4 Bd1 Qa7 Rb1 a1Q Rb3 Qd4 Rf3 Qe4 Kf7 Qc2 Ke8 Nca2 d8R Nc3 d7 Qf5 Rf4 Qb6 Rf3 Ka7 b8R Rc4 Rff2 Rg6 Rb7+ Ka8 Rh2 Qd6 b6 Qc7 Rd2 Qb8 Rhe2 Rgg4 Rc7+ Bb7 Rdc8 Bc6 Rb7 Bb5 Rc7+ Nc6 d8Q Bg2 Rb7 Bf1 Qdd6 Nd4+ Kd8 Ndf3 Qdc6 Ba4 Q6b5 Nfg5 Qb2 Nh7 Nc6 Bg2 Rf7 Bd6 Ne7+ Bc6 Qcb5 Be4 b7+ Ka7 Q5b4 Bb5 Q4a3 Qa8 Qab4 Bc2 Q4a3 Bb3 b8Q+ Ka6 Qc7 Qb7 Qc6+ Ka7 Qb4 Bb8 Qb6+ Ka8 Q4c5 Ba2 Rf8 Bb3 Rh8 Ba2 Rc7 Bb3 Neg8 Ba2 Rf7 Bd6 Ne7 Nf3 Rff8 Rce4 Bc6 Bg8 Rf7 Rc4 Bd5 Nh4 Qa7#
BrNn2kB/1r2QP2/2rR1Kb1/3q1N2/6R1/2rb1Nq1/1Q1n1P1p/Q2R1Rb1 b - - 0 1 illegal: No possible last move, all moves rejected
4r1Rq/3NnPkb/3B2b1/bK3Q2/r2NB1b1/pQ2BR1n/1n4qP/B5NR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 f4 a5 b4 e5 c4 g5 h6 a4 c5 g4 c6 a3 h7 g3 c7 g2 f6 Nc6 b6 Ra4 b7 Nge7 b8R Na5 b5 Bg4 c8Q Nc4 b6 Bg7 b7 Re8 h8B e4+ Kc2 e3 Kb3 d3 f5 d2 Nc3 d4 Bd3 e2 Nb5 e1N Be4 d3 Nd4 Nf3 Ra8 Kg8 b8B Ng5 Bd6 Nb2 f7+ Kh7 Rb8 Nh3 f8N+ Kg8 Qdc2 d1B f6 d2 Qf5 Bde2 Qc3 Bd3 Nd7 d1B+ Qc2 Bh5 Be3 Bdg4 Rf1 Bg6 f7+ Kh7 Rf3 Qc8 Nge2 g1Q Ra8 Qg2 Ng1 Qd8 Kc3 Bf6 Qb3 Bh4 Bhe5 Bf6 Rb8 Kg7 Rc8 Ra5 Kb4 Ra4+ Kc5 Bc2 Kb5 Bb1 B5f4 Bh4 Rb8 Be1 Bg3 Bc3 Be1 Ba5 Bc3 Nc4 Ba1 Nb2 Ra8 Qc8 Rb8 Qc3 Nc6 Qf6 Nd4 Qh4 Ra8 Qh8 Bd3 Rf8 Qc5 Bh7 Rb8 Rc8 Bc2 Rc7 Rf8 Rc8 Bg6 Re8 Qg5 Bbf5 Qh5 Be6 Be4 Bef5 Qg5+ Bfg6 Qh5 Bb4 Qf5 Ba5 Rg8+
qb1nn3/5P2/B4k1B/r1pRNP2/NQ1n1R1K/q6N/1R1b1rN1/2QbQ1n1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 c5 Kf2 h5 d4 a5 g4 e5 d6 h3 Kg3 h2 d7 a4 g5 a3 g6+ Kf6 g7 e4 b6 a2 b5 e3 b7 e2 b6 e1N d5 Qe8 d8N Qe2 d6 Qe4 d7 Nc2 Kh4 Ra7 Nc6 Nd4 d8N Ra5 Ba6 Bd6 Nc3 Qf3 Ne5 Nbc6 Na4 Bb8 Ne6 Nd8 Nh3 Qa3 Rf1 h1N Qe1 Ng3 Bd2 Bd7 Rd1 a1B Rf3 Nge2 Be3 Ne7 g8Q Bc3 Qgg1 Nc8 Bc1 Nd6 Rd2 Bc7 b8R Ne8 b7 Rf8 Rb2 Bd6 Rc8 Rf7 b8Q Bd2 Qb4 Bb8 Rc6 Rf8 Rd6 Bc6 Rf2 Bf3 Rd5 Rf7 Qgf1 Ng1 Qfc4 Bc3 Be3 Bd2 Qcc1 Bd1 Neg5 Rg7 Ngf3 Rg2 Rf1 Ke7 f6+ Ke6 f7 Rf2 f5+ Kf6 Kg3 h4+ Kg4 Bc3 Bh6 Bd2 Nf4 h3 Ng2 h2 Kh4 Ke7 Ng5 h1Q+ Nh3 Kf6 Bc8 Re2 Rf4 Rf2 Ne3 Qg2 Ba6 Qf3 Ng2 Qe4 Rd7 Qa8 Rd5
6n1/rqn1nPK1/1Q2p1QN/bR2N3/r3kRB1/bn5Q/1B2P1N1/q2qNB2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 h3 fxg4 Qa4 g3 Qd1 g2 Nc3 g5 Nb1 g4 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Ra3 Qc8 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 Kd2 h5 Ke3 c5 Ke4 h4 Kf5 c4 Kg6 h3 b6 c3 f5 c2 f6 a4 g5 a3 b5 a2 b7 h2 b6 Qc8 Nf3 g1N Bb2 c1B Qc2 g2 Nc3 Bh6 Nd1 Ra6 Rb1 a1Q Ne1 Qc3 Ne3 Nc6 b8Q+ Kd7 d6 Ke6 d7 Bf8 d8N+ Kd7 d5 Na5 d6 Qb3 b7 Nf3 Nc6 Ke6 d7 g1N Qc8 Nh3 b8Q Ra7 N3g2 Kd5 d8N Nd4 Ne5 Ne6 Ndf7 Rh4 Qb6 Ra4 Nh6 Nc7 Kh7 Qd3+ g6 Qd1 g7 Nb3 Qg6 Nf4 Qh3 Bd2 f7 e6 Kh8 Ne7 g8B Ba5 Bh7 Ng8 Rg1 Be7 Kg7 h1Q Ba3 Nd2 Rb5+ Bc5 Bb2 Nb3 Nh4 Qe4 Rg5 Qg2 Rf5 Ke4 Nc2 Nfd5 Ne1 Qh1 Nhg2 Ba3 Qf6 Qa2 Bg6 Nde7 Bh5 Qaa1 Qg6 Qd5 Bg4 Qb7 Qg3 Qg1 Qc3 Qd4 Qh3 Qdd1 Rf4#
nRbb2B1/2BQ1P2/P4N1N/B1bQq3/bQ1qp3/2q1Q1NR/1k2Kn2/1rr5 b - - 0 1 illegal: No possible last move, all moves rejected
n2bQ2n/2rqNp2/b2nQqr1/3PN3/8/RqB1R1RP/QNQ3K1/2kB1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 e4 Kd6 b4 Ke5 d6 Kd4 h6 c5 d3 a5 d7 g5 h3 f3 b6 g4 h7 c4 b7 a4 b5 a3 e5 c3 e6 c2 e7 a2 e8R Be7 b6 Nh6 Nc3 Ra6 Qd2 Nf5 Na4 Nd6 Be2 g3+ Kf1 f2 Bd1 Bh4 Kg2 f1N Re3 Bf6 Ba3 c1Q Nb2 Qc2 Bb4 Qb3 Qc2 Qe8 d8N Nd7 b8Q Ra7 b7 Nb6 Be2 Rg8 h8Q Na8 Bd1 Rg6 Qh6 Qd7 Qbc7 Be7 b8Q Ba6 Qa5 Rc7 Qc8 Bg5 Qf8 Bf6 Qe8 Be7 Rc1 a1Q Qa2 Qda4 Qe6 Qd7 Kf3 g2 Bc3+ Kc5 Nc6 Bd8 d4+ Kb5 Ne2 g1N+ Kf2 Nf3 d5 Kc5 Ng3 Nh4 Rg1 Kb5 Nf5 Kc5 Na4+ Kc4 Rgg3 Qb2 Nfe7 Qa1 Bg7+ Qc3 Ne5+ Kb4 Qab1 Ka3 Nb2 Qd4 Bh8 Qf4+ Kg1 Qf6 Kh1 Rg5 Bg7 Ng6 Kg2 Nh8 Qa2+ Kb4 Qc6 Rg4 Rcc3 Rg6 Qb1 Ka3 Rcd3 Bb5 Qcc2 Ba6 Qa2+ Kb4 Qcb1 Qba4 Ng4 Qh4 Ra3 Qb3 Nf2 Qd4 Nfd3+ Kc3 Bf6 Kd2 Be5 Qf4 Bd4 Qh4 Ne5 Qf6 Qd3+ Kc1 Bc3 Qba4 Qe4 Qb3 Qc2+
N2Rn3/k1NKBp1r/2r1NP2/1Q1R4/3B3Q/r2bqQqb/5rPn/1n2N2B b - - 0 1 illegal: Other
4B2R/KNq1Pbk1/1RQb1B1n/p3bn2/Q7/rPN3Qq/1BB2Nrn/n7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 e4 Kf7 g4 a5 d4 h5 g6+ Kg7 d6 c5 b6 c4 d7 c3 d5 h4 e5 f3 Ke3 c2 Kd4 f4 b7 f2 g5 h3 d6 h2 Kc5 f3 e6 Nh6 Bd3 f1Q Nh3 f2 Nc3 Qe1 Rb1 f1N Nf2 Qe8 Kb6 Qe4 d8B Ng3 d7 Na6 b8Q Qg4 Qb7 Nf1 Qc6 Qh3 Be4 Rb8+ Ka7 Rg8 Be7 Rb6 d8N Qf7 Nb7 Rb3 Ba3 Bd6 e7 Qf4 Qd4+ Be5 Qda4 Be6 Bd2 c1B Bc2 Bf7 Be3 Rf8 Bd2 Nb4 Be3 Kg8 g7 Rd8 Bd2 Rd6 Be3 Rg6 Bd2 Kh7 g8B+ Kg7 Be3 Qff5 Bd2 Qd7 Bf4 Qc7 Be3 Rd6 g6 Rd2 Bg5 Re2 Bh7 Bcf4 Bg8 Bd6 Bh7 Bfe5 Bg8 Bc4 Bf7 Rd2 Be8 Bf7 Nfd1 Rg2 Nf2 Kh8 g7+ Kg8 Bd3 Nc2 Bg6 Na1 Bc2 Rb4 b3 Re4 Bb2 Kh7 Rg1 h1N Rd1 Nhg3 Rh1 Nh2 Rc1 Kg6 g8Q+ Bg7 Rcd1 Ngf5 Rd4 Re1 Rb4 Re2 Rb6 Re1 Qh8 Be5 Qf6+ Kh7 Qf3 Re4 Qg3 Rf4 Qe6 Rb4 Qc4 Kg7 Qac6 Ra4 Q4b5 Ra3 Qa4 Nf1 Rh2 Qg4 Rh5 Qh3 Rh4 Nh2 Rh5 N6g4 Rh8 Ngh6 Bf6+
bbq4B/2N1P1Rp/3r3Q/qbNrR3/1QR1B2K/R1Bnr1Q1/2P2n2/1r3k2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 Kg3 Ke6 e4 d5 b4 a5 g6 f5 g7 d3 b6 a4 b7 d4 b5 d2 b6 d3 Qh5 d1R Bb2 d2 Nh3 a3 Nc3 a2 Nb5 Na6 b8B Be7 b7 Rc1 Nf2 d1R Qh6+ Bf6 Bc3 Rd6 Rh4 Nc5 Bd3 f4+ Kh3 f3 g4 Qe8 g5 Ra3 g6 Rb1 Bc7 Qf8 b8Q Bb7 Bb6 Qc8 Nc7+ Ke7+ e6 Ba8 Bba5 Be5 Qb4 Nf6 g8Q Ng4 g7 Rd5 Bd4 Kd6 Bb2 Kc6 e7+ Rd6 Qgb3 Rd8 e8R Bg3 g8R Bf4 Ba6 Nd3 e5 Bg3 Ne4 f2 e6 Bh2 Rh5 f1B+ Kh4 Ngf2 Re5 Rd5 e7+ R8d6 Rg7 Be2 Qbd2 Bf4 Bac3 Bh2 Nf6 Kc5 Qb8 Bf4 Bb7 Kc4 Nd7 Rb3 Bb4 Rc3 Nc5 Kd4 Qe1 Bh2 Reg8 Bf4 Rg4 Bf1 R8g7 Be2 Reg5 Ke3 Re5+ Kf3 Qd2 Rb3 B4c3 Bg3+ Kg5 Kg2 Rc4 Kf1 Qe3 Bh2 Qg3 Rb4 Bd4 Qd7 Rf5 Nf4 Qgh3+ Ke1 Kh4 Rc6 Rgg5 Rb3 N7e6 Re5 Ra4 Qc8 Rg3 Rcb6 Be4 Rd5 Bh8 Re3 Rg7 Rc6 Qb3 Bb5 Rc4 N4d3 Bc3+ Ke2 Qa4 Bb8 Qg3 Rcd6 Re5 Kf1 Qb4 Rbe1 Rb1 a1Q Rb3 Qa5 Nc7 Rb1 Ra3
k3q2N/NQb1pBRK/8/1BBRr2b/6R1/n1PQ2nn/R1nPNb2/2r4q b - - 0 1 illegal: No proof kernel
BQ3b1R/4p1Q1/1QbbNBK1/2RPP3/q1nrk3/4R1Q1/N1r1q1n1/2nN1n2 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 g5 axb5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 Kf2 Kd7 Ke3 Kd6 Kf4 a5 b4 c5 h4 f5 e4 g3 d4 g2 g6 c4 Kg5 f4 b6 a4 h5 c3 b7 a3 b5 f3 e5+ Kc7 d6+ Kd7 b6 Kc6 g7 Kd5 d7 f2 h6 a2 h7 c2 Nc3+ Ke6 Kg6 Nc6 b8Q Na5 b7 Nf6 Bg5 c1N Rh3 Ng4 Qe1 Ne3 Bf6 Nac4 Nd1 Kd5 g8Q+ Ke4 Ne2 g1B Qg7 Ng2 d5 Qc7 d8N Ra4 Ne6 Bd7 Qc3 Qb6 Qg3 Qb5 Qc7 Rb4 b8Q Bc6 Qcb6 Rb2 Rb1 Rc2 Ra1 Rg8 h8R Qa4 Rb1 a1Q Rb5 Q1a2 Rc5 Qb2 N2f4 Qba2 Nd3 Qb2 Be2 f1N Nb4 Bd4 Na2 Bc3 Nf4 Bb4 Bg4 Ba3 Bc8 Bb4 Ne6 Ba3 Ra5 Bd6 Rc5 Qbb5 Bb7 Qba6 Ba8 Q6b5 Kf7 Qba6 Qh6 Rg4 Qg7 Ncd2 Nac3+ Kf5 Qh2 Rd4 Re3 Qe2 Na2 Nc4 Qh4 Rf4 Qhg3 Rd4 Rf3+ Ke4 Kg6 Nb3 Rc3 Nc1 Re3+
1Rqk3B/2bP1rRq/b1B1B3/Nn1p4/q1r4R/P1NQ4/1Q1qn3/KQ2bB2 b - - 0 1 illegal: No proof kernel
n1q5/Q1np1KQ1/PNb2P1N/1B3B2/N1Rb4/3n2Br/2Bq1rR1/qQq4k b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 a4 b5 f4 g5 h4 b3 c4 b2 h6 g4 h5 g3 h7 b4 c6 b3 c7 g2 c5 Nc6 h6 Nce7 c6 Ra6 a5 Ra7 a6 Bg7 Nd2 b1N Ra2 b2 Rh4 Rb7 Bb5 Rb8 Nc4 Ra8 Ne2 g1Q Nc3 Bf8 Na4 Na3 Ncb6 Bb7 c8B Nd5 c7 Bc6 Bb7 Bc5 c8B b1Q+ Qd3 Qg5 Rg2 Qa1 Qb1 Nc4 Be3 Nge7 Bf2 Qdg8 Bg3 Ng6 Rg4 Rb8 Ba8 Be3 Bcb7 Qc8 Rh4 Rf8 h8N Bd4 h7 Qh6 Nf7 Nc7+ Kd3 Rh8 Rg4 Qh1 Nh6 Qc1 Rh4 Ne7 Rg4 Ned5 Ke4 Nb2 Rh4 Nd3 Rg4 Ke7 f6+ Kd6 Kf5 e4 Kg6 e3 f7 e2 f8Q+ Ke6 Qa3 e1Q Qc5 Qed2 Rh4 Rf8 h8Q Rf5 Rg4 Rh5 Qg7 Rh3 Nc4 Nb6 Rh4 Nbd5 Qa7 Nb6 f5+ Kd5 f6 Qe3 Rh5+ Ke4 Rh4+ Kf3 Kf7 Qed2 Rg4 Be4 Bd5 Rb7 Be6 Bc6 Bf5 Rb8 Re2 Rb7 Ree4 Kg2 Re2+ Kh1 Rg2 Rb8 Bb7 Nba8 Ncb6 Qh8 Rf4 Re8 Rh4 Re2 Rf4 Qc8 Rh4 Bf3 Bbe4 Rf2 Rg4 Nc5 Bc2 Nd3 Rh4 Bc6 Re4 Bc3 Rb4 Bd4 Rc4
1r1Nq3/BrP1Q2b/1RQ1K3/N1Q1B1pk/1r2BbN1/2rqn1R1/n5nP/6N1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 f4 a5 b4 e5 c4 g5 h6 a4 b6 a3 f6 Kg6 f5+ Kf7 b7 a2 b5 Nc6 b8N Qa5 c5 Qa6 h7 Bd7 Nc3 Nh6 Bg2 Bd6 Qf3 Ra7 Be3 Ng4 Nd1 Qc8 b6 Qe8 Nf2 Rb7 Rb1 a1R Qe4 Rg8 h8B Ra4 Rb5 Rb4 Qf3 Na5 c6 Nb3 c7 Be6 Nc6 e4+ Ke2 Bf4 Na5 Nc1+ Kd2 d3 Kc3 Ne5 Ng4 Nc4 Kd4 d2 Kc5 d1Q Bg7 Rb8 b7 d4 Rb6 d3 Bh8 Bd7 Kd5 d2 Bc5 e3 Qe4 Rc8 b8N e2 Nbc6 e1N Bf2 Na2 Nd8+ Kf8 f7 Rb8 Bhd4 Rb7 Be5 Ne3+ Kd6 Ba4 Qc6 Bc2 Bd5 N1g2 Be4 Nd5 Bc5 Qe2 Bd4 d1R Bf2 Rd3 Be3 Nf6+ Bd4 Kg7 f8Q+ Kh8 Qf7 Rc3 Qe7 Qd3 Ke6 Rf8 Bf2 Kg8 Bc5 Nd5 f6 Nde3 Bcd4 Nf5 f7+ Kh7 Be3 Kg6 Bf2 Rh8 f8Q Kh5 Bfd4 Nfe3 Bc5 Kh4 Bcd4 Qh5 Qec5 Qe8+ Qfe7 Rg8 Nf3+ Kh5 Rg1 Nh4 Rg3 Nhg2 Ng1 Qd1 Ra6 Nh4 Bd3 Qd2 Q5d6 Nhg2 Nf7 Qf8 Ba7 Qd1 Bh7 Bg6 Qdd5 Qd3 Qdc5 Qfd8 Rb6 Q8d7+ Kf6 Rgb8 Nd8 Qe8 Ke6 Bf7+ Kf6 Bg8 Be4 Bh7 Ke6
1b1r4/1BP5/2b1Nrn1/R1pN1qrq/2BB1nQ1/1RP1QBRQ/1n4r1/K4k2 b - - 0 1 illegal: No possible last move, all moves rejected
2QK2Bn/2P2Q1q/1PrNr2b/4pRRb/RB1N2q1/1b5k/rR1Bn3/1N4b1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 h4 d3 c4 d6 b4 a4 c5 g4 b6 a3 b7 d2 h6 g3 c6 a2 h7 g2 c7 Ra3 b5 Na6 Kc6 d5 b8R d4 h5 d3 h6 Qe7 Qh5 d1Q Bd2 Ra5 Ne2 g1B Nd4 Nc5 b6 Be6 Rh2 Qc1 Bg2 Qc4 Bd5 Ra3 Ra8 Bg7 Ra4 Ne4+ Kb7 Bf7 Kc8 Ng3 Rg2 Ne2 Rg5 Bg6 Be6 Qf7 Kd8 Rc3 Rb4 Bf8 Rb2 Ne7 Qf3 Rg8 h8N Qh7 Nf7 Bh5 Nd6 Rg6 Bg8 Qe6 Qf2 Rc6 Qf1 Rg7 Qf2 Ng6 Qf3 Re7 Qf2 Qhf7 h7 Bh6 h8Q+ Qg7 Qh7 Qh8 Qf3 Qc4 Qg4 Re6 Qd7 Qh7 Qc8 Qd5 Qf3 Qe4 Qf1 Qf3 Qf2 Qg4 Qf1 Kg7 f6+ Kh8 f5 Qh3 f7 Kg7 f8B+ Kf6 Nf7 Nh8 Be3 d2 Bb4 d1B Bed2 Bb3 Nd6 Nf4 Rg2 Qg3 Qf3 Kg5 f6 Kh4 f7 Ne2 f8R Kh3 Qf6 Qf4 Rg5 Qg4 Qg7 Qh4 Rf5 Qg4 Na3 Bf2 Qf7 Bg1 Rab1 a1R Ra2 Bc4 Rbb2 Bd5 Nb1 Bb3 Ra5 Ra2 Ra4
R2nb1k1/1rP4p/1RrqQN1P/5r1n/3B2B1/1K1N1NNb/3R2nB/3Qn1q1 b - - 0 1 illegal: No possible last move
1n1K3n/Q1PRp2q/QBN1r3/1qq1b2B/RPb4Q/5n1r/1nk2Q1N/R4B2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 h5 Ke4 a5 Kd5 h4 g4 h3 f4 h2 c4 d3 b4 a4 f6 Kg6 f7 d2 f5+ Kg7 c5 d6 f6+ Kg6 c6 a3 c7 a2 b6 Bh6 f8Q Ra6 b7 Qd7 f7 Nc6 b8Q Rb6 Qa7 Bg7 Ne2 Be5 Qe1 d1Q+ Nd4 Ba6 Be3 Nh6 Qfa8 Qc2 f8Q Nb8 Qff2 Nf7 Nd2 Rh3 N2f3 Qb5+ Ke6 d5+ Nc6 d4 Qh4 d3 Qef2 d2 Q8b7 Kg7 g6 d1N g5 Nb2 Rg1 h1Q Nh2 Qc3 Rg4 Qc1 Rd4 Nh8 Rd7 Qcc5 Bd4 Qa5 Be3 Bb5 Qba6 Bc4+ Kf5 Qab5 Bd4 Kf8 g7+ Kf7 g8B+ Kg7 Bd5 Qe4+ Ke6 Qh7 Be3 Kg6 Bd4 Bd3 Bf3 Be2 Rd1 a1N Bg4 Nb3 Ra1 Nd2 Bh5+ Kg7 g6 Nf3 Ra4 Kh6 g7 Bd3 Qe4 Kg5 Qee1 Kf4 g8R Be2 Rg1 Ke4 Qh4+ Kd3 Qef2 Kc2 Rh1 Ng6 Rg1 Qh6 Kf7 Nh8+ Ke8 Qg6+ Kd8 Qh7 Na5 Re6 Nc6 Qc3 Bb6 Qcc5 Qfg3 Bc4 Qf2+ Kc1 Be2+ Kc2 Rga1 Kb3 Bf1 Kc3 Qg1 Kc2 Qgf2+
2qr1RQn/qbP1p1n1/2P1NB2/Rn5N/B2b2r1/3k1K1Q/Q4nB1/2B3Rr b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Ke2 Kf7 f4 Kf6 b4 a5 c4 d5 g4 h5 c6 d4 c5 h3 g5+ Kf7 c7 h4 b6 d3+ Kf3 d2 b5 h2 f6 Kg6 f7 Kf5 c6 h3 b7 a4 g6 a3 b6 a2 g7 Be6 Ne2 Ra3+ Nbc3 Ra4 Ne4 Na6 b8Q Qc8 b7 Nc5 Qc2 d1N Rg1 h1R Bg2 Nh6 g8B Bg7 f8R+ Nf7 Ng5+ Re4 Qd3 h2 Qa7 Nc3 b8Q Nb5 Qaa3 Bd4 Ng3+ Kf6 f5 Ke5 f6 Rg4 Qba8 Kd5 Qf5+ Kc4 Nh5 Bd7 Qh7 Ne6 Q8a7 Ng7 Ne6 Nbd6 Qg6 Nb5 Bh7 Rg8 Q7a5 Nh8 f7 Qe8 Qg5 Bc8 Bc2 Bb7 Ba4 Qc8 Qae3 Re4 Qg3 Rg4 Qg5 Kd3 Q5h4 Rg5 Qhh3 Rd5 Qa7 Rd8 Qg6+ Nf5 Qh7 Rg4 Qg8 Ng7 Rb1 Na3 Rb5 a1Q Ra5 Nb5 Bg5 Be5 Bf6 Qa3 Qf2 Bd4 Qa2 Qc5 Re8 Qa7 f8B Nf5 Bh6 Ng7 Ra1 Rd1 Bf4 h1N Rf8 Nf2 Bh6 Rh1 Rg1 Na3 Bd2 Nb5 Bc1
1K2bn1r/B1p2N2/NnQ3qQ/RB4Q1/Q2P4/1n5r/1nr1P2q/1NkRR1b1 b - - 0 1 illegal: No possible last move, all moves rejected
QB1b2n1/n1p2Q2/3r1bR1/r1P5/2BBq3/2rNPq1B/R1nnQ2K/2kN3N b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 b4 Kf7 f4 Ke6 c4 h5 c5 d5 f5+ Kf7 g5 a5 f6 Kg6 b6 Kf5 e6 Ke4 b5 a4 g6 a3 e7 d4 e8Q+ Qe7 b7 h4 f7 a2 g7 d3 b6 h3 Be3 h2 Bd4 Nc6 b8N Ra5 b7 Na7 Nh3 g1B Nc6 g2 b8B Qe6 Qd2 Be7 f8Q Bd8 Ne5 Qg4 Qf6 Qf3 Qff7 Be3 Qef8 Beg5 Rg1 h1Q e3 Rh6 Qc2 Rd6 Qe2 Bgf6 Q8e8 Ra3 Qef8 Rc3 Q8e8 Ra6 Qef8 Ra5 Nf2+ Kf5 Q8e8 Qh7 Nh1 Ke4 Na3 Qg6 Nac4 Qgf5 Nb2 d2+ Kd1 Q5f4 Ned3+ Qe5 Qc6+ Qd5 Qa8 Qb7 Rc1 a1N Rb1 Nc2 Ra1 Qc6 Ra2 Qh3 Qeh5 Qe6 Ke2 d1R Kf2 Qf5+ Kg3 Qf3+ Kh2 Rd2 Nb4 Qb7 Be5 Rd6 Bd4 Qc6 Bc4 Qd5 Nd1 Qc6 Re1 g1N Be6 Qb7 Bh3 Qd5 Re2 Qb7 Rg2 Qc6 Na6 Kd3 Rg6 Kd2 Nb4 Kc1 Qg4 Qce4 Qg2 Ne2 Qf1 Ng3 Qe2 Nh6 g8B Nf1+ Kg1 Nd2 Kh2 Qe8 Qg7 Qee4 Bc4 Ng8 Qd7 Nc6 Qf7 Na7 Nd3+
1N2B1bK/Q1p3Q1/NN1P2N1/3qn1n1/3bqr2/q4qRQ/RP2k3/n2rBR2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 a5 g4 h5 f4+ Kh6 d4 h3 d6 e6 d5 a4 g5+ Kg7 d7 h2 b6 h4 d6 h3 g6 Kh6 b7 a3 g7 a2 f6 Qe8 d8Q Ra3 f7 Ra4 f5+ Rf4 f6 Kg5 Nf3+ Kg4 Qb3 Qa4 Nbd2 Qa3 Nd4 Nh6 g8R+ Bg7 Bb5 Rh7 Re1 h1Q f8Q h2 Nc6 Qf3 Nc4 h1Q Nb4 Kg3 Qde7 Kf2 Rf1+ Ke2 Na6 Bd7 Qc3 Be8 Qb3 Bf7 Be8 Bh8 Rgg1 Bg8 Bd2 Rg7 f7 Qhg2 Rab1 a1N Nb6 Rg3+ Qf6 Rh3 Be1 Rh1 Q8g7 Qg5+ Qf5 Qgg2 Kf6 e5 f8N e4 Qb4 e3 Qe4 Nc6 b8N Ne5 Ng6 Nhf7 Qa8 Ng5 Qa7 Qd5 Rc1 Qgf3 Rc4 Kd1 Rg2 e2 Ra4 Rg1 Rg3 Rh1 Bb4+ e1Q Ra5 Ke2 Bd2 Qb1 Be1 Qbe4 Ra4 Qad3 Ra2 Rg1 Ke7 Qa3 Kf8 Nef7 Qh3 Rh1 Qgh6 Bd4 Qh7 Ne5+ Kg7 Rh2 Kh8 Rf2 Rh1 Rf1 Qg7 Rg1 Bf2 Re1 Rf1 Rd1 Be1
1nb1n2b/1PkQ3p/1r3n2/R1B3KB/r2BQPBR/5RN1/2qNn2Q/5qb1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 c5 Kf4 a5 g4 a4 d4 e6 b4 h3 b6 c4 f6 a3 f7 h2 b5 a2 g5 c3 b7 c2 b6 Qe8 g6 e5+ Kg5 e4 d6 e3 g7 e2 d5 e1Q Qd3 Ra3 Be2 Rc3 Ba3 c1N Bc5 Nh6 g8B Qd1 Qe4 Nc6 b8Q Qf1 b7 Nf5 Bh5 Ng7 Ne2 Rb3 Nd2 Rb6 Ng3 Ne2 f3 Kd8 d7 Bd6 Bd4 Bc5 f8B Qf7 Qd6 Ne8 f4 Nb8 Qh6 Kc7 d8R Qd7 Be6 Qa4 Beg4 Qc2 Be7 Rf8 Rd6 Rf6 Bf8 Ra6 Rb6 Ra7 Rb3 Ra4 Rf3 Ba7 Bfc5 Rb6 Re1 a1B d6+ Kd8 d7 Kc7 Rb1 Bc3 Ra1 Bb2 Rg1 h1N Rg2 Nf2 Rh2 Bc3 Rh4 Bb2 Be3 Bh8 Bed4 Rab4 Ra5 Ra4 Be6 Ng4 Bf5 Ngf6 Bfg4 Na6 d8Q+ Kb8 Qdd5 Kc7 Qb3 Nb8 Qbe3 Nc6 Qg1 Nb8 Qh2 Qcd1 Qhg6 Qc2 Qf7+ Nfd7 Bg7 Rb3 Bb4 Bg1 Bc5 Rb1 Bgd4 Rb6 Qfe6 Ndf6 Qd7+
3r4/1pbR2QR/N1qN1q1n/Pr3b2/N3BnqB/6P1/1QQ1kbN1/K1B2q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 Kd2 c5 Kc2 e5 Kb2 h5 a4 h4 f4 c4 d6 b3 f6 Ke6 f5+ Kd5 g3 Ke4 a5 h3 d5 h2 d7 Qe7 d8N Rh4 d6 Bg7 d7 Qe8 f7 Bh8 f8N Nh6 g6 Qe7 f6 Na6 g7 Nc7 g8Q Nd5 f7 Nf4 Ne2 Kf3 Nfe6 e4+ Qg7 e3 f8Q Rh5 Qc2 Rb5 Nc7 Qf6+ Nbc3 Rb8 Kb1 b2 Na4 c3 Bg2+ Kf2 Rd1 h1Q Bd2 Qh3 Qa3 Qg4 Nf7 Ra8 d8B Bf5 Be7 Rb8 Na6 Rd8 Qh7 Bg7 Be4 Bh8 Nd6 Bg7 Nd4 e2 Nf3 e1B Nh4 Ke2 Ng2 Bf2 Rh1 Bf8 Ka2 Bg7 Rad1 Bf8 Rh3 Bg7 Qab3 Bf8 Qg7 b1Q+ Ka3 Qc1+ Qcb2 c2 Ka2 Nf7 Rh7 Nh6 Rg1 Qd1 Q3c3 c1Q Qcc2 Qe1 Rh1 Qf1 Rh5 Qc3 Bh4 Qf6 Rg5 Bg6 Rc5 Bf5 Rc7 Be7 Rd7 Bf8 Qcb1 Qc6 Ka1 Be7 Nc4 Bec5 Nd6 Bb6 Qc1 Bc7 Qb1 Be1 Qc2 Bf2+ Bc1+
bR5R/P1Bq4/3n1qB1/1NQ5/K4Rbn/1n1rp1B1/k2PRNn1/NrQ1b3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kd7 f4 Kd6 h4 Kc5 a5 e5 f6 b5 d6 g5 a6 g4 h6 e4 h5 e3 f5 g3 h7 g2 f7 b3 a7 Kb4 h6 c5 d7 c4 f6 c3 Ne2 g1N Ra2 b2 Ra3 c2 Rh2 Na6 Nf4 Be7 f8R Ne2 f7 Nc7 Nh3 Nf4 Nf2 Ne8 Ra4+ Kb3 Bd3 b4 Na3 b1B Bg6 Rb8 Bb2 Ka2 Be5 b3 Qc1 b2 Bc7 Nd6 Nb5+ Kb3 Re8 Bh4 f8Q Qf6 d8N Bg4 Nc6 Ne7 Nb4 Nef5 Rd8 Rg8 h8B Bg3 h7 Nh4 Rg2 Rg7 Rh2 Rd7 Rc8 Rb6 Rb8 Ba2 Bg7 b1Q h8R Qba1 Qe7 Qad4 Qe5 Rd8 Qc5 Qd5 Bf8 Qc6 Bg7 Qd7 Bh6 Be6 Bg5 Nfg2+ Ke2 Bd5 Kd3 Ba8 Bf4 Bb1 Ng4 Be1 Nf2 Rb7 Bg3 Ba2 Nd5 Bb1 Rf4 Ka2 Nb4+ Ka1 Nc6 Ka2 Ncd4 Rb6 Kc3 Rb7 Qd1 c1N Kb4 Nb3 Qdc1 Bf5 Nc2 Bg4 Na1 Re8 Bd8 Re5 Bb6 Rd5 Ka4 Rd3 Bd8 Rb6 Bc7 Rc6 Qg5 Rc2 Qf5 Rb2 Qfc5 Rb1 Ne4 Nhf5 Rf1 Nf4 Re2 Ng2 Rf4 Nfh4 Nf2
Q1r1Qn1q/P1N1N1RR/n2kb2n/2q3R1/4P2K/Rn2prBB/N2q1b1Q/8 b - - 0 1 illegal: No proof kernel
2B3BN/PrQrnR2/5KN1/4BR2/q1bP2Rr/6k1/nNrQ2pn/1B2q1b1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 Kg4 b5 Kf5 c5 h4 b3 e4 g4 a4 g3 d4 g2 h6 b2 e6+ Kd6 h5 f6 e5+ Ke7 h7 b4 h6 c4 d6+ Ke8 a5 b3 d7+ Ke7 a6 c3 a7 c2 Rh4 Qb6 Nd2 b1R Bd3 b2 Nh3 Nc6 Ra5 Nb4 Rf4 Qb5 Nc4 Ba6 Qd2 Na2 d8R Bg7 Rf8 Qa4 Rb5 Rd8 Rf7+ Ke8 e7 Kd7 Kg6 Ke6 e8B f5 Bc6 Bf6 Bb7 Bg5 Bc8+ Rd7 Kg7 Ne7 Rd5 Re8 h8N Bh4 h7 Bf2 Be4 Bg1 Ra5 Bb5 Bd3 Kd5 e6 Rg8+ Kf6 Rg4 Ne5 Rh4 Nf2 Qb4 Nd1 Qa4 Ra6 Bc4 Neg6 Ra1 Rc6 b1Q Rb6 Qbb4 Nb2 Rb1 Rb5+ Qc5 Re4 f4 Ra5 f3 Rf4 f2 Rb5 Nf5 e7 f1N e8B Ne7 Bf5 Nh2 Be4+ Kd6 Ra5 Qcb4 Raf5 Rb7 B8c6 Rd7 Bcd5 Qc3 Rf8 Qe3 Bg8 Qg3 Rf7 Qe1 Nd1 Rb3 Ba3+ Rb4 Nb2 c1R Bc2 Kc6 Bb1 Rbb7 Bd6 Rc2 Be5 Kd5 Rg7+ Kc6 Nf7 Kd5 h8Q Rdc7 Rh5 Nc6 Rhf5 Re7 Qh7 Rec7 Rf2 Ke4 Nfh8 Re7 Rf7 Rec7 Rf8 Re7 Qf7 Rec7 Qd7 Ne7 Qd8 Rd7 Rf7 Rg4 Qc7 Rf4 Re2+ Kf3 Rf2+ Kg3 Rf1 Kh3 Rf2 Rh4 R2f4 Kg3 Rg4+
2nbb3/b2r2BK/3Bb3/pb2n3/1Q1N1QP1/1r2N2B/BkPQ2R1/1q1bN2R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 e5 Ke4 a5 g4 h5 f4 h4 b4 d5+ Kd3 Nc6 g6+ Kf6 b6 Rh7 b5 Rb8 g7 Be7 b7 Qb6 Ba3 Be6 Nc3 Bd8 Nf3 Nge7 Bd6 Nc8 Rh2 h3 g8B Bf7 Qe2 Be8 Nd1 Rd7 Rf2 h2 Bh3 h1B Bf7 Qc5 b6 Qb4 Be6 Bg2 Rc1 Bf1 Rg2 Qb1 Bg8 Ra8 b8N e4+ Kd2 e3+ Kd3 Ra6 b7 Rb6 Be6 N6e7 Nc6 Ng6 b8Q Rb2 Qb5 Rb4 Rg3 Bg2 Qf2 e2 Ne3 Rb2 Qb4 e1B Nc4 Bd2 Rh1 Be3 Ne1 Bf3 Qe2 Bf2 Rg2 Bg1 Kd2 d3 Qf2 Be2 Ke3 d4+ Ke4 d2 Qe3 d1B Qed2 Bf1 Bd5 Bde2 Bf7 Ne5 Bg8 Nd3 Bd5 Kg7 f6+ Kg6 f7 Kf6 f8B Bf2 Nb6 Be3 Ba2 Rb3 Bh6 Ke6 Bg7 Ne5 Nd5 Bc4 Bgf8 Bb5 Bg7 Bfc4 f5+ Kf7 f6 Ke6 f7 d3 f8Q Ba7 Qc1 d2 Ne3 d1B Qcd2 Bd5+ Kf4 Bdc4 Be7 Bd5 Kg5 Bdc4 Kh6 Bd5 Nf1 Bdc4 Nd4+ Kd5 Bd6 Ke4 Kh7 Be6 Qff4+ Kd5 Qa3 Kc4 Qdf2 Kc3 Qb4+ Kb2 Ne3 Ba4 Qe2 Bb5 Qed2
Q2QrRRn/4BN2/b3n1bp/K1P2B1Q/3b1b1q/3N2Rb/5b1P/1r1BkB2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 exd5 Bd7 axb5 Bc8 f4 gxf4 c4 Kd7 g4 e5 d4 a5 Kd2 f5 Kc3 h6 c6+ Kd6 g5 f3 g6 e4 b6 f2 g7 f4 b7 a4 Kb4 e3 c7 a3 Bb2 e2 Nh3 e1B+ Nd2 a2 Rg1 f3 Rg3 Qh4 Ba3 Ne7 g8B Bf5 c8B Ng6 Nf4 Nd7 b8R Nc5 Nd3 Ne6 Bd7 Be7 Rf8 Rb8+ Ka5+ Rb4 Ba4 Bg5 Bh7 Bf4 Rc1 a1B Ne4+ Kc7 Nd6 Rb1+ Bb4 Rg8 Qe2 Nh8 Bd1 Bg6 Nf7 Bac3 d6+ Kc6 d7 Bb2 c5 Kd5 Bc3 Kc4 d8Q Ba1 d5 Bb2 Bh3 f1B d6 f2 d7 Bg2 Qe8 f1B d8Q Bf2 Qh5 Bb7 Qc6 Ba6 Qca8 Ba1 Bf5 Bh3 Rc2 Kb3 Bf6 Bad4 Ra2+ Kc3 Be7 Be1 Rag2 Bef2 Bfg4 Kd2 Bge2 Be1 Bf1+ Bef2 Ng5 Bf7 Bf5 Bg6 Rf6 Re8 Rf8 Bb8 Nf7 Bf4 Nc1 Ke1 Rg1 Bh7 Rgg8 Bg6 Rg5 Bc4 Rg3 Ba6 Nd3+
r4N1Q/4q1bK/B2bP3/3b2Q1/2R2bQP/3R3B/bRnpnr2/Q1Bb1N1k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 Kf5 g5 h4 a5 b4 d3 h6 d2 e3 a4 b6 g4 e6 g3 b5 g2 h7 a3 b7 a2 b6 Na6 b8R Bb7 e7 Nf6 e8B Nh5 Ne2 g1B Nd4 Nb4 Bh3 Bd6 Ne6 Rf8 h8Q Nf4 c3 Bc6 b7 Bh2 Rg1 f6 Rg4 Ne2 Kg6 f5 Rc4 f4 Kh7 f3 Qe1 d1B Nd2 f2 Nf1 Rf5 Nf8 Bhf4 Bg6 Rf6 Bd3 Nc2 e4+ Ke5 Qg7 Bd5 Qg5+ Rf5 Rb1 a1B Rb2 Qf6 Rbc8 Qd8 b8Q Qe7+ Qg7+ Rf6 Rd4 Ba2 Ba6 Bd5 Rd3 Ba2 Ng3 f1B c4 Bg2 c5 Bf3 c6 Bh1 Ra3 Kd4 e5 Bhd5 Nf1 Ke4 c7 Rf7 Ra4+ Kf3 Rd8 Rf5 c8Q Rf6 Bg4+ Kg2 Bh3+ Kh1 Rc4 Rf5 e6 Rf7 Qc5 Rf5 Rb6 Bf6 Rb2 Bc3 Qf7 Bg7 Qg8 Bc6 Qc3 Bc7 Qbb6 Bge5+ Kg6 d5 Rd7 d4 Qh8 d3 Rb5 d2 Rd3 Be3 Qa1 Bcd6 Rb2 Bg7 Kh7 Rf4 Qf5 Bd5 Qd4 Rf2 Qdg4 Bef4 Qfg5
RR1bn1K1/B1Nr4/2PN3r/4QQQ1/2B3n1/1PB2q2/k2b2bp/b1N2Bbb b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Ke3 Ke6 Kd4 h5 f4 a5 g4 d5 c4 h4 g6 e3 c6 h3 g7 h2 g5 e2 g6 e1B b6 a4 c7 a3 c5 a2 c6 Ra7 b7 Nf6 Bd2 Bh4 Be1 Rh6 Ne2 Ng4 Nc1 Nd7 b8B Ndf6 Bc3 Ne8 g8B+ Kd6 f5 e5+ Kd3 Kc5 g7 d4 Ke4 d3 f6 d2 f7 Bf6 Qe2 d1B Na3 Qd7 b3 Bd8 Rg1 Qd2 Qe1 Qf2 Nb5 Bd7 c8N Bf3+ Kd3 Be6 Nc7 Bed5 Nd6 Bh1 Qe2 Bfe7 f8Q Bdg2 Bc4 Bf6 g8Q e4+ Kc2 e3 Kd3 Qf3 Qg5+ Be5 Qff5 Rb7 Bb2 Kb4 Ba7 Bf4 Bc3+ Ka3 Kd4 Bg3 Qe1 e2 Kc5 Be5 Qg3 Bh8 Qge5 e1B Kd4 Bh3 Rg2 Bd2 Re2 Bhf6 Re4 B3g2 Kd5 Rb6 Ke6 Rb7 Kf7 Bfe7 Na8 Rd7 Kg8 Bb6 Rd4 Bed8 Nc7 Bc5 Rd5 Bd4 Rb5 Bg1 Rb1 a1B Rb8 Bde3 Rb2 Bf4 Rd2 Bfe3 Rd5 Bd2 Rdb5 Bd4 Ra8 Bg1 Ne2 Ka2 Rb6 Be7 Rbb8 Bd8 Nc1+
1B5B/2nR1BQ1/nQb3Nb/1r1R1NrP/1r3n2/prQR4/3q1P1K/1k2Q2n b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 d4 Kd6 h4 a5 f6 c5 h5 g5 b6 e5 b7 a4 b5 a3 f7 e4 b6 g3 Bb2 c4 Be2 e3 Kf1 c3 Kg2 g4 Bb5 e2 Qc1 e1R Rh3 c2 Ba6 Nf6 Nc3 Re5 Qe1 c1N Bc4 Ne8 Nf3 Ra4 Nd1 Ne2 Ne3 Rb4 Rd1 Nc7 Nh4 Nba6 b8Q Bd7 b7 Bh6 Ng6 Bc6 Qc8 Nf4+ Kg1 g2 b8B Rf5 Kh2 g1R Ba1 Re8 f8Q+ Re7 Rd2 Rb3 Qg7 Re4 Nd1 Rg5 Rhd3 Rb5 Ne3 Rg3 Qb7 Qd7 Qb6 Rf3 Qa5 Qd8 Qc3 g3+ Kh1 g2+ Kh2 g1N Bb3 Re7 Ba2 Nge2 Nf5+ Kd7 d6 Ng3 Bb2 Nh1 Bf7 Re4 d5 Reb4 Ba1 Qe7 Rd1 Qe3 Bb2 Qd2 Ba1 Kc8 d7+ Kb7 d8R Kb6 d6 Ka5 d7 Ka4 Rd5 Qb2 R1d3 Qd2 Re8 Rfg3 d8Q Re3 Re7 Reg3 Qc5 Re3 Bc3 Kb3 Red7 Kc2 Qb6 Rf3 Qc8 Rfg3 Qgg8 Rf3 Bh8 Re3 Qg7 Reg3 R3d4 Rc3 Rd3 Rcb3 Qee5 Kc1 Qce8 Kc2 Qc3+ Kb1 Qe1+
nrrBN1B1/6N1/b1Rr2N1/k2P1K2/3pQ2B/3PRnR1/2QnBn2/r1b3q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 axb5 f5 exf5 d4 Nc3 Nh6 Nb1 Qd5 cxd5 Ng8 Ke2 Kd8 Kf3 e5 Kg4 c5 b4 Kc7 f4 Kb6 d3 a5 Rh3 h6 Nc3 c4 Rg3 a4 Nf3 e4 Be2 h3 Ne5 h2 Qc2 h1N Ng6 e3 Ne4 c3 Nf6 a3 Ne8 Nd7 f6 a2 f5 Nc5 f7 Ba6 f6 h5+ Kf5 Be7 f8Q h4 f7 Bg5 Qe7 h3 f8N h2 Qe4 Bf4 Ne6 Nb3 N6g7 Nf2 Ba3 h1R Re1 a1R Bc1 Kb7 b6 R1h6 b5 Rc8 Ba3 Nd2 Be7 Rb8 Bd8 Nf6 Rc1 Nd7 Bh4 Ka8 b7+ Ka7 Re1 Rc8 b8B+ Kb6 Be5 Rb8 Bef6 Ka5 b6 Rf8 b7 Nb6 Rc1 Na8 Re1 Rc8 b8R Rg8 Rb6 Rb8 Qc1 c2 Rc6 Rgh8 Qb1 c1Q Qc2 Rc8 Rh1 Qg1 Rhh3 Bd6 Bfg5 Ba3 Be7 Bc1 Bd8+ Kb4 Rf3 Rg8 g4 Rgh8 g5 Rf8+ Bf6 Ka5 Rhg3 Rfh8 Bf1 e2 Re3 e1N Be2 Nef3 Bd8+ Nb6 Nf4 Rd6 g6 Nb3 Ngh5 Nbd2 g7 Rb8 g8B Rc8 Nhg7 Rb8 Nc7 Na8 Ng6 Rc8 Be6 Re8 Bg8 Rf8+ Bdf6 Rfd8 Nce8 Rb8 Bfg5 Rdc8 Bd8+
1N1b1Qn1/1Q1B1k1r/3Kb3/1NP3RN/rb1P2Bb/Nn2R3/qBnn3p/1R6 b - - 0 1 illegal: No proof kernel
N4k2/1brrn3/NK3bQ1/1PpB1N2/R2RRB2/bQqr1r2/2BP2b1/R2n4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Ke3 h5 b4 a5 f4 c6 g4 h3 b6 e4 Kd4 e3 g5 a4 d6 e2 Kc5 e1R b5 h2 b7 h4 g6 h3 f6 a3 f5 a2 g7 Re7 f7+ Kd7 f6 Qc7 Na3 Nh6 g8B Ra6 Nc4 Rh7 Ne2 Re6 Ng3 Nf5 Ba3 Be7 f8R Re3 f7 Ra7 Re8 Rf3 f8Q Ne3 Qb3 Nd1 Nf5 Rf7 Rg1 h1B Rg4 h2 Qh6 Bg2 Bd3 h1R Qg6 Rhh3 Bc2 Rd3 Bb2 Rhf3 Be5 Qa5 Bh2 Qc3 Kb6 c5 Be5 Nc6 Bf4 Bf6 Re4 Ne7 b8N+ Ke8 d7+ Kf8 Na6 Bb7 Rh4 Rh7 Bd5 Rg7 Ncd6 Rh7 Ne8 Rf7 d8R Rg7 Rc1 a1B Rb1 Bb2 Ra1 Rh7 Rd7 Ba3 Nec7 Nc6 Rd6 Rd7 Na8 Ne7 Ra4 Bc8 Re6 Rac7 Ree4 Bb7 Red4 Qc4 Bh2 Qb4 Rhe4 Qc3 Bf4
2kbrb2/1NQr2nn/2q2BPb/RBRb1n2/npB3R1/QPN5/R7/1K1Q4 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 gxh4 Qa4 Nh6 Qxa5 d5 cxd5 Ng8 Qa4+ Nd7 Qa7 Nb8 Kd1 Kd7 Kc2 b5 a4 e5 f4 h5 d4 b4 g4 h3 b3 h4 g5 h2 d6 e4 f6 h3 f7 e3 f5 e2 a5 e1B d5 Na6 g6 Qf6 Bb2 Qe7 f6 Qe2+ Nd2 Rh4 Kb1 Rh5 Nc4 Nc5 a6 Qe5 Ra5 Qc3 Ne2 Bb7 Rg1 h1N Rg4 h2 Ba1 Qf3 Nc3 Na4 Bd3 Kd8 d7 c5 Nd6 Rh7 Bb5 c4 Bb2 Bc6 Nb7+ Kc7 d8R Ng3 Rc8+ Kd7 d6 h1N Qc5 Nh5 a7 N1g3 Qd4 Rb8 a8B Ng7 Qd1 N3f5 Ba1 Bh4 Bb2 Ke6 d7 Bd5 Rc5 Re8 d8Q Qh1 Qc7 Qg2 Ne4 c3 Ba1 Qg3 Bc4 Qd6 Bb2 Qc6 Bb5 Be7 f8Q Bg5 f7 Nf6 Bc4 Bd8 Qh8 Bh6 f8R c2+ Ka2 c1B Kb1 Ngh5 Nc3 Rd7 Rf7 Nh7 Qhd4 Nh4 Rf2 Bf8 Ba1 Nf5 Ra2 Bf4 Qc1 Ke7 Qa3 Nhg7 Qd1 Bh6 Nd6 Qb6 Bc6 Ke6 B6b5 Qc6 Qb7 Rc7 Qa7 Kd7 Nb7 Kc8 Qb6 Bfe7 Ne2 Bd6 Bf6 Bf8 Nc3 Rd7 Qc7+
nBR1Brr1/b5r1/Q3npQ1/4Q2B/1Q2NRK1/3k1NP1/3qrPn1/1b1N3n b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 c4 Ke7 e4 Ke6 Ke2 d5 Kf3 a5 b6 h5 b7 f6 c6 h3 c7 h2 g3 a4 c5 d4 c6 h4 Bg2 d3 Ba3 h3 Qc2 d2 Qd3 d1N Qb5 Na6 b8Q Ne3 Qb4 Nc5 Nc3 Qd2 Nd1 Ne7 Rc1 N7d5 Q8b5 Ba6 c8N Nb6 c7 Rg8 Nd6 Bb7 Bf1 Ng2 Be2 Rc8 Bb2 a3 Rc3 Rd8 c8Q+ Rd7 Qa8 a2 Qaa6 Rdg7 Qe8+ Be7 Qg6 a1R Kg4 Ra2 Nf3 Na8 Re1 h1R Rc2 Nb3 Rc8 h2 Bd4 Rc2 Ba7 Nc5 Bb8 Ra2 Bb5 Bd8 Be8 Bb6 Re3 Rf8 Rc3 Ba7 Rc4 Re1 Rd4 h1N Rc4 Ke7 e6 Re2 e5 Be4 Bf7 Bb1 Rf4 Ra3 Ne4 Rc3 Qg5 Rd3 Bh5 Rdd8 Qg6 Rfg8 Nb2 Rde8 Nd1 Ref8 Rc6 Kd8 e7+ Kd7 e8B+ Ke7 Nd6 Ke6 Ne4+ Kd5 e6 Nb7 e7 Nd8 Rc4 Ne6 Rc8 Nec7 Bd7 Nb5 e8Q Nbc7 Qd8 Ne6 Qc7 Qc3 Ne5 Qe1 Be8 Qd2 Nc4 Kd4 Qca5 Qc2 Qe5+ Kd3 Ncd2+ Qc4 Qaa4 Qc1 Nf3 Qd2 Qa6#
1r3nk1/qR5Q/NNP4Q/b1P3b1/K1N1NR1n/b2n4/1BpBn1r1/RB1b4 b - - 0 1 illegal: No proof kernel
N6n/2NR2r1/P1r1B2B/Q6p/N1B1qb1b/Rn1R4/1Q1P1Rk1/nK1bb1n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 g4 b5 f4 c5 d6 e5 f6 Kg6 a5 h5 a6 c4 d7 b3 f7 c3 Ra3 e4 Rh4 c2 Ke2 b2 Nc3 b1N Ke3 b4 Nge2 b3 Nd4 b2 Ndb5 Be7 f8R Nh6 Nc7 Rg8 Bc4 Nf7 Na4 Nc3 Rh3 b1N Bb2 c1B Qb3 Ne2 Bg7 Nh8 Qb2 Ng1 Bh6 Qe8 d8R Rg7 Rd7 Nc6 Rf3 Rb8 Na8 Nd4 Rg3 Rb6 f5+ Kh7 f6 Kg6 f7 Nb3 Rf3 Rc6 Rf2 Bf6 Be6 Qe7 Rfd8 Be5 f8Q Bg3 Qf4 Bh4 Qfe5 Qb4 Qa5 Qb7 Kf4 e3 Ke4 e2 Kd3 e1B Bc4 Qb4 Kc2 Qe7 Rd3 Qe4 Rd7 Bb7 Qa2 Bb2 Qa1 Be5 Qb2 Nc3 Be6 Nb5+ Kb1 N5d4 Bc4 Nc2 Be6 Nf7 Bc4 Bf4 Be6 Kh7 g6+ Kg8 g5 Nca1 Bh3 Nh8 Be6+ Rf7 g7 Kh7 g8N Kg6 Bc4 Rg7 Nf6 Bc8 Nd5 Kf5 g6 Kg4 Ne3+ Kh3 Nd5+ Qf3 Ndc7 Bb7 Rf1 Kg2 Be6 Qe4 Rf3 Re7 g7 Bc8 g8B Rg7 Rd4 Bd7 Bc4 Bh3 Rd7 Bg4 Rf1 Bf3 Bge6 Bd1 Rf2+
1n2N3/2Br1kP1/Qb6/1R5B/1Kn2b1n/nQ1RQb2/1B1NrPp1/2q2RRb b - - 0 1 illegal: No proof kernel
1B2B2R/bKNb2P1/B3r3/rb3NNr/4Q3/Pn1pR3/b2k2qn/Q2r2RR b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 Ke3 d5 Kd4 b5 f4 h5 g4 e6 c4 b3 a3 b2 f6 Kg6 c6 h4 f5+ Kf7 c7 h3 c5 h2 c6 b4 Ba6 b3 Nf3 Rh5 Bf4 Nd7 Nc3 b1R Nb5 b2 Qg1 Rf1 Re1 b1B Re3 Nc5 Be5 Bd7 c8N Nh6 c7 Ba2 Ne7 Bg7 c8B Qg8 Bb8 Rd1+ Ke5 d4 Kd6 e5 Kc7 Nb3 Kb7 e4 Nc7 d3 g6+ Kf8 g5 Ng4 f7 Bd4 Qg2 Kg7 f8R Ba7 Qe2 Bb5 Bd7 Qd5+ Bc6 Qg8 Be8 Bd7 Re1 h1B Qf1 Nh2 f6+ Kh8 g7+ Kh7 g6+ Kh6 f7 Bb5 Ne5 Kg5 Nf3+ Kf4 Nf5 Bg2 Qe2 Bh3 Ng5 Bg4 Rh1 Bh3 Rg3 e3 Qg2 e2 Re3 e1R Qe2 Qh7 Rh8 Qg8 f8Q Bg4 Qf6 Qd5+ Qc6 Qg2 g8R Bh3 Qb2 Bg4 Ng7 Bd7 Qa1 Re2 Nf5 Ree1 Rg3 Re6 g7 Qc2 Rgg1 Qg2 Ng3 Ke3 Qe4+ Kd2 Rf8 Rf1 Rf3 Rd1 Nf5 Ba4 Bc4 Bab5 Rh3 Be3 Rf3 Ra5 Rh3 Ba7 Re3 Ba4 Ba6 Bab5 Qf3 Bb6 Qc6 Ba7 Qe4
5K1n/R1Br1BP1/q4QNR/k4p2/1N2b1R1/1Brrb3/2n2QRP/Nbr3b1 b - - 0 1 illegal: No proof kernel
1r2r3/4B1p1/b3K1RQ/3NN2k/N2R3B/B1PN1bb1/1r1R2Pb/1Qnnqr2 b - - 0 1 illegal: No proof kernel
N1b3br/R1bk1Bp1/1Qr4r/2R1N1PQ/3nb1QK/2n1Bq2/4P3/1Nr1R2N b - - 0 1 illegal: No possible last move
B4rNn/n1rp2N1/Qn1qb3/rRP1rRk1/R2Q1N2/3P1R2/5b2/3nB1BK b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 f4 Kf7 Kf2 Kf6 g4 a5 Kg2 e5 c4 h5 b6 a4 c6 a3 b7 e4 c7 a2 Rh3 e3 Na3 e2 Rf3 e1R Nh3 Nh6 Kh1 Qe7 Nb5 Qd6 Nd4 Ra5 Ne6 Nf7 Ng7 Nc6 b8R Ba6 c8Q Na7 Rb5 Re5 Bg2 Be7 d3 Rf8 Qg1 Nh8 Qd4 Bb7 Bb2 Bd5 Bc3 Be6 Qa6 Bd8 Be1 Bb6 Rd1 a1N g5+ Kf7 g6+ Kf6 Rd2 Nb3 Ra2 Nd2 Ra4 Bc5 Rf2 Bb6 Ba8 Bc5 Rf3 Bb6 Ng1 h3 Ne2 h4 Qf2 h2 Qd4 Ke7 f6+ Kd8 f7 Ke7 f5 Kf6 Kg2 h1R Nf4 Kg5 f6 Rh2+ Kg1 Rf2 Kh1 h3 Qb2 h2 Qd4 Rc8 f8R Rc7 f7 Bc5 Nf5 Bb6 g7 Bc5 g8N Rf1+ Kg2 h1N Ng7 Nf2 Kh2 Nd1 Kg2 Rf2+ Kh1 Rd5 Rc8 Re5 f8B Ne4 Re8 Nf6 Re7 Nd5 Rf7 Nb6 Rf6 Rc8 Be7 Rf8 Bd8 Rc2 Rf5+ Kg4 Bdh4 Rc3 Bhf2 Rc1 Rf6 Kg5 Bg1 Rc2 Qa1 Bf2 Qd4 Rc5 Rf7 Re2 Rf6 Ree5 Rf7 Rc6 c5 Rc7 Rf5+
1n3Q2/K1pN1P1Q/1R1bqr2/2Q2rRB/2P1nn1n/2rrB3/3NRNk1/b2N4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 Kd2 Kf7 Kc3 Ke6 Kc4 h5 b4 a5 f4 a4 e4 d6 b6 d5+ Kb5 d4 c4 d3 f5+ Kf7 e6+ Kf6 g5+ Ke5 f6 d2 g6 Kf4 f7 a3 e5 h4 g7 a2 b7 h3 e7 h2 e8Q Ne7 g8Q Nbc6 b8N Na7+ Ka6 Nec8 e6 Rh4 e7 Ke3 b5 Kf2 b6 Qd7 b7 Rh3 Qh7 Nd6 Nc3 Qe6 Nf3 g1N Be2 g2 Nd7 Rh5 b8N Rf5 Nde5 Nh3 Rb1 a1B Rg1 h1R Nbd7 Nf4 Rb6 Rh6 Nd3+ Kg3 Qc2 d1R Nf2 Ne4 Nd2 Rhf6 Bg4 Nc6+ Kb7 Nb8 Qb1 Ra4 Qb5 Ra8 Qc5 Ra3 Qc8 Rb3 e8R Bd6 Re7 Ra3 Qf8 Rb3 Ka7 Ra3+ Na4 Rd3 Nb2 Rc3 Rh1 g1N Rh5 Kg2 Rg5 Nf3 Re8 Re1 Nbd1 Ree3 Re7 Nh4 Re8 Ng3 Re7 Red3 Re8 Qd5 Re2 Qc6 Nf1 Ne4 Be3 Qd5 Nd2 Qe6 Bh5+
2N2Q1q/1P2Q2b/Pn2k2K/2b1N1B1/N1n1B2b/R5n1/3NQRp1/rb1B1n1r b - - 0 1 illegal: No proof kernel
N3QB2/1p1KR3/kN3Q2/1rQ1q1br/P1B2N2/r1bb2r1/BP1nR3/b2B2n1 b - - 0 1 illegal: No proof kernel
3B1r2/n3qBk1/5Bnp/R2N3P/qb1Qn1Rn/2n3QN/N1P3QK/4rqQ1 b - - 0 1 illegal: No possible last move, all moves rejected
R4Q1b/1B2B3/1n1np1QQ/1rP3K1/qNk1PQ1N/r4r2/3B1R1r/2n1qrR1 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Qd8 g6 Bb7 g5 Bf3 h3 Bg4 hxg4 Qc8 Ra4 Qc7 Ra1 Qd8 Kd2 a5 c4 h5 b4 f5 e4 d5 c5 Kd7 g7 a4 b6 Kc6 b7 f4 g6 d3 g5 Kb5 Ba3 f3 Ke3 f2 Kf4 e6 Rh2 d4 Qc2 h4 Rg2 h3 Nf3 h2 Nc3+ Kc4 b5 h1R b6 R1h3 Nh4 Qe8 Bb4 a3 Qd2 a2 Nd5 Nf6 g8R Nbd7 b8B Bg7 b7 Ra3 Bd6 Nb6 b8Q Qa4 Be7 Ne8 Re1 Bf6 g7 a1N g6 Nb3 Be2 f1Q+ Rf2 Nc1 Rf8 Rg3 g8Q Nd6 g7 Rf3+ Kg4 Rh5 Qh6 Qh1 Rd1 Qe1 Bd2 Be5 Qf7 Bf6 g8Q Bh8 Ng2 Rhh3 Qfg6 Rh2 Kg5 Kb3 Bb4 d2 Ba6 d3 Bb7 Kc4 Rd8 Qe2 Rg1 d1R Q8e8 d2 Qef8 Rf1 Nh4 d1R Bd2 Qe1 Rc8 Nf5 Nb4 Nd6 Bf4 Rdd3 Bd2 Rdb3 Qc7 Rb2 Ra8 Rb1 Qcb8 Rbb3 Qf4 Rb2 Qbf8 Rbb3 Na6 Rb5 Nb4
B3kb2/2qqqbr1/2RRQ3/b1b2Np1/N1B2Nr1/3Qn1B1/P1b3PN/R5K1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 d5 c4 g5 cxd5 Nc6 h5 Ne5 Nf3 Be6 Ng1 Ng6 hxg6 Bc8 d4 Bg7 f4 e5 Kf2 b5 f6 h5 d6 c5 d5 c4 f5 c3 Be2 h4 Bf1 c2 Be2 b3 Qe1 h3 Bg4 e4 Bf4 c1B Nc3 b2 Na4 b1Q Bf3 h2 Bg3 Rh4 Qe2 Bh6 g7 Ne7 g8B Qb2 Kf1 Qb3 Qc4 Qb6 Be6 b4 Qa6 Qa3 d7+ Kf8 d8N e3 d6 b3 f7 b2 d7 b1B Nb7 Nd5 Qd3 Ra7 d8R+ Ke7 f8N e2+ Ke1 Ne3 Kf2 Qac5 Nd6 Ba3 Ba8 Qbb4 Bb3 Be6 Nf3 Qcc3 Rc1 e1B+ Ke2 Qg7 Rc6 Bc2 Bc4 Bc3 Kf2 h1Q Qe4 Qh3 Kg1 Qb8 Nh2 Bc5 Qd3 Bg8 Ne6 Ba5 Nf4 Rd7 Rf8 Qc7 Rf6 Kd8 Rg6 Re7 f6 Qhd7 f7 Rg4 Nf5 Qf8 Nd4 Qfe8 f8Q Rh7 Nf5 Bf7 Qfd6 Qe7 Qb3 Bf8 Qbd3 Ke8 Q6d5 Rg7 Rgd6 Qee6 Q5e4 Qee7 Qe6
3nbR1N/1nn2P2/B3rp2/N1NBBK1b/qQR1n1n1/bQ2kP2/1q6/1R2B3 b - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 g5 cxd5 Kd7 h4 gxh4 e5 Ra6 Qf3 Rg6 Qd1 f6 e6+ Kd6 Qh5 Rg7 Qd1 Rf7 exf7 Kd7 Ke2 Kd6 Kd3 Kc5 Ke4 h5 g4 e5 b3 a4 d3 h3 g5 h2 g6 a3 g7 h4 b6 h3 b7 a2 d6 Na6 b8Q Ne7 g8B Qe8 d7 Nc6 d8R Bg4 Na3 Bh5 Rb1 a1Q Nf3 Qb2 Kf5 e4 Nh4 e3 Bh7 e2 Bd2 e1N Ng6 Nf3 Nc4 Ng5 Na5 Ne4 Be1 Bd6 b4+ Kd4 Rg1 h1N b5 h2 b6 Rg8 Rc8 Ba3 b7 Nd8 Qb3 c5 Nh8 c4 Rg4 c3 Qf4 c2 b8B c1N f3 Nc7 Qd6+ Ke3 d4+ Nd3 d5 Nhf2 Qdb4 h1B d6 Qa4 d7 Re8 Rg8 Re6 Rf8 Bg2 Bg6 Na8 Rc4 Ng4 Be5 Nc7 Be2 Bf1 Bh7 Nc6 d8N Bh3 Ndb7 Nd8 Qa2 Ndc5 Bd3 Nd7 Nc5 Bf1 Qab3 Be2 Na6 Ndc5 Bg6 Ncb7 Nc5 Qc1 Rd4 Qc3 Ba6 Bb5 Rc4 Be8 Bh7 Ke2 Kf4 Qb2 Bf5 Rd6 Be6 Rc6 Bd5 Re6 B1c3 Kf2 Kf5 Ke3 Be1+
r2Bqb2/RBPpR1q1/2b3n1/Q1bN1b2/2BP2N1/Nn3k1Q/1R2q3/N1b3K1 b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 a5 b4 g5 a3 gxh4 bxc5 b5 a4 b4 Bd3 Ra7 Bc4 Rb7 Bf1 Rb5 axb5 Qc7 Nh3 Qb6 Ng1 Qd8 f4 Kf7 Kf2 Kf6 g4 h5 d4 e5 c4 a4 b6 e4 g5+ Kf7 b7 a3 g6+ Kf6 c6 h3 c7 h2 c5 b3 c6 b2 g7 a2 Qa4 h4 Ne2 h3 Nec3 Ba3 Qa5 Qe8 Bc4 Bf8 Na3 b1B Re1 Na6 b8R h1Q Rb2 Qf3+ Kg1 Bb7 c8B e3 c7 Bc6 Bb7 Ne7 g8Q e2 Qg4 Ng6 Nd5+ Kf7 f6 Bf5 Qh4 Ke6 f7 Nc5 Qh5 Nb3 Qh7 Bc5 f8N+ Kd6 Ne6 Qe4 Qh5 Qe5 Be3 Qg7 Bf2 Rf8 Bh4 Rg8 Bd8 h2+ Kf2 h1Q Qh3 Qf3+ Kg1 Bg4 f5 Rf8 f6 Bf5 Rad1 a1B f7 Rh8 f8N Qd3 Rc2 Bb2 Ra1 Bc1 Nh7 Rg8 Nhf6 Qf3 Rf1 e1B Rb2 Beb4 Ng4 Qe2 Re1 Rf8 Nef4 Rh8 Ng2 Ke6 Raa2 Bf8 N2e3 Bbc5 Nec2 Kd6 Na1 Rg8 Ne5 Ke6 Ne7+ Kf6 Ng4+ Kg5 Qh5+ Kf4 Nd5+ Kf3 Qh7 Qd2 Re7 Qe2 Qc3+ Qd3 Nb5 Qef7 Ra7 Rh8 Qb4 Qe2 Na3 Rg8 Qa5 Rh8 Re6 Bfd6 Be7 Ra8 Bd8 Bf8 Re7 Qe8 Qh3#
1Rq3B1/pP3Bn1/RQN2r1b/1R1QQn2/1K3b1Q/1b1Nb1n1/P1b5/2k1B2q b - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 b5 fxg5 Bc5 c4 bxc4 h4 Bf8 g4 Bd6 h5 Bb7 g6 Bf8 g5 Na6 h6 Bc8 Bf4 Nf6 Be3 Rg8 Bc1 Rg7 hxg7 Ng8 Nc3 Rb8 Nb1 Bb7 Na3 Qf6 Qd2 Ke7 Nf3 Nh6 Qa5 Rd8 Nb5 Bc8 Qd2 Re8 Bg2 Kd8 Ng1 Ba3 Qd3 Rh8 Bf1 Bf8 Na3 Ke8 Qd1 Qd8 Nb1 Ng8 Kd2 Ke7 Kc3 Ke6 b4 Kf5 e3 Ke4 e6 f5 b5 c5 e7 h5 e8B d5 b6 h4 b7 h3 Ne2 h2 Nd4 f4 Bh3 f3 Be6 f2 Qa4 f1N B8f7 Ne7 g8Q Rh6 g7 Nc7 g6 Ng3 Na3 Nef5 Bd2 Ne8 Be1 Qd7 Rf1 h1Q Nac2 Qd8 Nc6 d4+ Kd2 d3 Kc3 d2 N2b4 d1B Rb1 Qc7 Nd3 Bc2 Rb5 Bd7 Qa6 Qc8 Qb6 Bd6 Rg1 Bf4 Qh7 Kf3 g8Q Ke2 g7 Kd1 e4 Rf6 Bd5 Be6 e5 Be3 Qh4 Bh6 Kb2 c3+ Ka3 c4 Kb4 Bf4 Qgh8 Bh6 g8Q Neg7 Qgd8 Be3 Bg8 Bf7 e6 Bf4 Nc5 Kc1 e7 Rg6 e8R Ne6 Ka3 Nh5 Qdc7 Kd1 Qd4+ Bd3 Qce7 c2 Nd7 c3 Qd6 Neg7 Qa5 Qc7 Rg3 Bh6 Rb4 Rf6 Rb8 Qc8 Nde5 c1B+ Kb3 c2 Qab6 Bcf4 Rb5 c1B Kb4 Kc2 Bc4 Be4 Ra3 Nhg3 Ra6 Bce3 Q4c5 Kc1 Be6+ Bc2 Nd3+ Kb1 Bd5 Be6 Qe5 Bf7 Bg2 Bfb3 B2d5 Qc7 Bdf7 Qc8 Nb2 Kc1 Qc4 Nd4 Qcd5 Ndf5 Nd3+
2N1r3/2Knqrq1/2P1Q1Rk/2N2Brb/1pb2B2/NPRQ2r1/1B2R3/bq2N3 b - - 0 1 illegal: No possible last move, all moves rejected
2R2n1Q/1p3q2/1R1q1nrb/1P1bP3/2nnq1NK/B2bNNN1/1kBQR1B1/8 b - - 0 1 illegal: No proof kernel
7k/1pn1Qb2/P2NQRQ1/b2r1QBb/4qB2/1P1qbqNK/B6R/1n3N1n b - - 0 1 illegal: No proof kernel
1R1q2R1/bbP1Bq1k/2Q2nn1/2R2KpN/Bn2nRP1/3n1N2/7Q/1rB3Nn b - - 0 1 legal: proof: e4 c5 a4 a5 h4 g5 d4 cxd4 h5 f5 exf5 b5 axb5 Ra6 Nc3 Qc7 Nb1 Rg6 hxg6 Qd8 Ke2 h5 Kd3 e5 Ke4 h4 g4 d3 f4 d2 c4 a4 b4 a3 b6 a2 g7 Kf7 c5 h3 b7 h2 c6 Bc5 f6 Kg6 f7 Kh7 f8R Ne7 g8N Ng6 f5 Ba7 Qf3 d1Q b5 Qb3 f6 Qf7 Kf5 e4 b6 e3 Bb5 e2 Nd2 e1N Ba4 Nd3 Rb1 a1N Rb5 Nc2 Rc5 Ncb4 c7 Qc4 Qc6 Qf7 Ndf3 d5+ Qd7 Qfe7 f7 d4 Qe6 Nd7 b8R Nf6 b7 Qed7 Re8 Q7e7 f8B Qf7 Be7 Nb2 Ne1 d3 Nef3 d2 Qd7 d1N Qe6 N2d3 Qd7 Nfd5+ Nf6+ Kh6 Rg8 N1f2 Qe6 Ne4 Qd7 Qfe8 Nh5 Ndf6 Nh3 Rh7 Rf1 h1N Nhg1 Qf7 Qe6 Bd7 Rf2 Bc6 Rf1 Bd5 Qc6 Rh8 Rc8 Kh7 b8Q Nde5 Qbb5 Ned3 Qd6 Bc6 Rb8 Bb7 Qbc6 Kh6 Rg7 Re8 Rg8 Kh7 Bf8 Re6 Qh2 Rd6 Be7 Rd4 Rf2 Rc4 Ba3 Rc1 Bb2 Ra1 Bc1 Rb1 Ne1 Qdf8 Rf4 Qd8 Nef3
1NN1q2B/1r1B2P1/1b1RnR2/B1R5/1qQ1p3/r1rrk3/r3Prb1/1QN1K1R1 b - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 axb5 Nc6 cxd5 Nd4 Qc2 Ne6 Qd1 fxg4 Qa4 g3 Qb3 g4 Qd1 Ng5 hxg5 Bf5 Ra5 Be6 Ra1 Bc8 f4 Kd7 b4 Kd6 d4 c5 f5 a5 g6 h5 b6 e5 b5 a4 f6 e4 b7 g2 b8R c4 b6 h4 b7 a3 f7 g3 Nh3 g1Q Bb2 c3 Ra2 g2 Ng5 h3 Nf3 c2 Ne5 c1R Nc6 h2 Nd2 Rc3 Qb1 Rhh3 Ne7 Nh6 Nb3 Nf5 Nc1 Rhd3 Ra1 Bd7 Rc8 a2 b8N Qe8 Rc5 Bh6 f8R Raa3 Rf7 Ng7 Rf2 Ne6 Rf6 Qe3 Rg1 h1R Nb3 Rh4 Nc1 Rcb3 Bc3 Rf4 Ba5 Rb6 Bc3 Rc6 Bb2 Rf2 Nc8+ Kc7 d6+ Kb7 d5 Qd4 Qc2 Be3 Qc4 Rb6 Rb1 a1R Bc3 R1a2 Ra1 Bc6 d7 Rb1 d8Q Bd7 d6 Rb4 Rh1 g1R Rh6 Rg3 Bh3 Rb5 Ba5 Qb2 Bc3 Qb4 Qa5 Rgf3 Qa4 Bd4 Qab3 Rfe3 Qb1 Ref3 Rch5 Bb6 Rc5 Rfe3 Na7 Bc8 d7 Rg3 d8B Bd7 Bd2 Rdc3 Be7 Rgd3 Bf8 Bc8 Bg7 Bd7 Bh8 Bc8 Nac6 Kc7 g7 Kd6 Na7 Bd7 Rc6+ Ke5 Rd6 Bd4 Bf5 Rb7 Nc8 Ba7 Rh3 Bb6 Re3 Kf4 Rg3+ Re3 Rg1 Rd3 Bc3 Ref3 Rg5 Ke3 Bg4 Rg3 Rc5 Nd8 Nb3 Qa4 Bh5 Rd4 Qc2 Bh3 Ba5 Bg2 Bg4 Rh3 Bd7 Ne6 Rd1 Qb5 Qb1 Qb4+ Rd2 Rhf3 Nc1 Rd5 Kd1 Rd4 Rh6 Kf4 Rg6 Rfc3 Rd3 Rd5 Rf6+ Rf5 Rh3 Rff3 Rh1 Rfd3+ Ke1 Ke3 Rf1 Rf2 Rg1
2rRrn1q/1n1n3n/7Q/pRNr3P/B1KQ2br/P5Bk/1N2r3/2NRQ2Q b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 e4 g6 f4 Qc7 e6 Bd6 e5 Kd8 f5 Be7 f6 Qa5+ Nc3 Kc7 fxe7 Qb6 Nb1 Kc6 Ke2 Qc7 Ke1 Qd8 Ke2 d5 Kd3 a5 e8Q+ Nd7 c4 f5 h4 b5 e7 g3 e6 g2 a3 b4 h5 d4 Rh4 g5 Bb2 g4 Bc3 b3 Bd2 f4 Nf3 g1N Ne1 f3 Ng2 b2 Qf8 f2 e8N g3 e7 Nf3 Qh6+ Ngf6 Nd6 Nh7 e8Q Nf8 Ne3 g2 Nc3 g1R Ne2 b1R Be1 Rb2 Nc1 Re2 Nb7+ Qf6 Qd2 Rg4 Nd1 Ng5 Nb2 Ngh7 Qde3 Kc7 c6 Rhg8 c5 Qh8 Bg2 f1N Kc4 d3+ Qd4 d2 Bg3+ Rf4 Rb1 d1R Rh1 Rb8 Be4 Rdd2 Bc2 Ne3+ Kb3 Nc4 Rd1 Nd6 Qee4 Rf6 Qh1 Rf4 Kc3 Rh4 Ba4 Nb6 Qe1 Bg4 Qh1 Kc8 c7 Nbd7 Kb3 Re8 Qe1 Rg5 Kc3 Rde2 Kd3 Nb5 Kc4 Rd5 Qh1 Ndf6 Qe1 Kd7 c8R Ke6 c6 Kf5 c7 N6d7 Rd8 Rc8 Nc5 Nd6+ Kc3 Nb7 Kc4 Rb8 c8Q Ra8 Qcc6 Rc8 Bc7 Bf3 Bf4 Kg4 Bg3+ Kh3 Nbd3 Rd6 Rb5 Bg4 Qf3 Rd5 Nb2 R8e5 Qfe4 Re8 Q4h1+
rR3r1B/Rb3nqP/1p6/1P3k2/Q1r2B1R/1n1n1Q1K/1Qr1nR2/1NqBN3 b - - 0 1 illegal: No extended proof kernel
q3bR2/3qbn2/pB1r1kQ1/q1n5/P1KNQ1R1/1nBB1PqR/6QR/4Nn2 b - - 0 1 legal: proof: g4 c5 b4 b5 bxc5 g5 h4 f5 e4 d5 c6 dxe4 gxf5 a6 f6 g4 Qf3 Ra7 Qd1 Rd7 Bd3 Rd5 Bf1 Rg5 hxg5 Qd7 Nc3 Qd6 Nb1 Qd8 Ke2 Kf7 d4 h5 c4 e5 a4 b4 c7 g3 c5 g2 f3 b3 c6 e3 Kd3 b2 d5 e4+ Kc4 h4 d6 e2 d7 e1Q Qd2 h3 Ra2 h2 Na3 b1N Bd3 e3 Nc2 e2 Bb2 Qg3 Ne1 Be7 Bc3 Nh6 g6+ Ke6 g7 Nf7 g8Q Rh6 Qf4 Qe8 d8B Nd7 Qg7 Nc5 Qg6 Bd7 c8R Qg4 c7 Nd2+ Kd4 Ndb3+ Kc4 Qh8 Rb8 Qg3 Rb4 Be8 Qd4 Qd6 c8Q+ Qd7 Bb6 Qg8 Qb7 Qf8 Qf2 Qh8 Nc2 e1Q Ne2 g1Q Qfg2 Qg3 Rb2 Q1e1 Ned4+ Ke5 Rf1 Qd2 Ne1 h1N Qc6 Nf2 Qa8 Ng4 Rh1 Nh2 Qc6 Nf1 Rh3 Nd8 f7 Qg8 Qh7 Rd6 Qce4+ Kf6 Ra2 Qh8 f8R+ Nf7 Ndc2+ Kg5 Bg7 Nc1 Qe6 Ne2 Qh2 Qd8 Rbb2 Qg2 Rg8 Qa5 Qhe4 Qh5 Rf8 Qhg4 Bc3 Qa8 Nd4 Nc1 Qg1 Qh2 Rg2 N1b3 Rac2 Qf4 Rgg3 Qe5 Rch2 Qf5 Qg2 Qe5 Q6d5 Kf6 Qh7 Qef4 Qde4 Qd7 Rg4 Qg3 Qhg6#
NR3QR1/1N4q1/4BQq1/p1nk2qR/2bB3B/PrbP2N1/2r1qbKb/7N b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 Nc6 Ke2 Nd4+ Ke1 Ne6 gxf5 dxe4 Rh3 g4 Rh1 Ng5 hxg5 Bh6 Na3 Bg7 Nb1 Bf8 c4 Kd7 f4 Kc6 Kf2 a5 g6 b5 a3 e5 g7 h5 f6 h4 f5 b4 f7 h3 f6 b3 Bb2 h2 Qf3 g3+ Kg2 Be6 Nh3 Rc8 Nc3 Bd6 Nf2 Rh3 f8B Bf7 Qf4 e3 Ne2 e4 Bd4 b2 Be7 b1Q Ra2 Be6 f7 Nf6 g8R Nd7 Bh4 Qg5 f8Q Rc7 Rb2 Qa2 Ng1 e2 Rb8 e1B Q4f6 e3 Bd3 e2 Bf5 Qc2 Bg4 Qcg6 d3 Rb7 Bf5 Bc3 Bg4 e1B Ne2 Rb3 Bf5 Kc7 c6 Nc5 Bg4 Bf7 Be6 Bf4 Qh6 Kd6 c7 Kc6 c8N Bc7 Nb6 Be5 Ne4 Bf2 Na8 Bd6 Qf8 Qg7 Kf3 g2+ N4g3 g1Q Qe5 Qa1 Kg2 Qd1 Qf6 Qe1 Nf4 Qe2 Nh5 Ne4 c5 Be5 Bg4+ Kd5 c6 Nc5 c7 Be6 c8N Bd6 Nf5 Re3 Nhg3 Re4 Be5 Rc4 Bd4 Qf4 Nf1 Bb2 Kh3 Rc2 Bg5 Be5 Ncd6 Bd7 Nb7 Bb5 Nd2 Bc4 Ne4 Bg3 Nf2 Bc3 Nfd6 Qf5 Nde4 Qfg6 Be6+ Kc6 Rg1 Bh4 Rg2 h1Q+ Rh2 Qc1 Nh1 Bf2 Kg2 Bc7 Rhh8 Bh2 Neg3 Qce3 Bh4 Qeg5 Bg4+ Kd5 Rh5 Rb1 Bh3 Rb3 Be6+
1R6/nn1pK2n/1P2B3/3Pb2k/B1NBR1QN/1Rb2n1b/3bQ1r1/1n1BQ1r1 b - - 0 1 legal: proof: h4 e5 a4 b5 b4 g5 hxg5 Be7 axb5 Ba6 b6 Bc8 b7 Kf8 c4 Bd6 f4 exf4 c5 Qf6 b5 Ke8 Rh2 Be7 Rh1 Qb6 cxb6 Bf8 Kf2 f5 Kf3 Kf7 g4 Kg6 d4 h5 e4 a5 d5 c5 e5 c4 e6 h4 e7 c3 Be2 a4 Bc4 a3 Nd2 a2 Bb3 h3 Rb1 a1B Qe1 c2 Bb2 c1B Qd1 h2 Bd4 Ra2 Ba4 Bg7 Qf1 Nc6 Qe1 Bc3 Rb4 Be5 Rb2 Rh7 e8B+ Rf7 b8R Ba6 b7 Ba5 b6 Bf1 Rb4 Nf6 Ra8 Na7 Rb3 Nh7 Rc8 Kg7 g6 Kh6 Ra8 Rg7 Bf7 Rg8 g7 Rc2 Bh5 Bg2+ Kf2 f3 Ke3 f2 Nf3 f1N+ Kd3 f4 Ke4 Bb4 Kf5 Bc3 Rg1 h1N Nh4 f3 b8Q Bh2 Qd8 Nf2 Rb8 Bh3 Qde8 Nd3 Nc4 Nd2 Rg2 Bc7 Re2 Nb1 Qe7 f2 Re5 Re8 g8B f1N Bgf7 Rg8 Re2 Ng5 Kf6 Nh2 Qe3 Bf4 Ke7 Be5 Be6 Nc5 Qf3 Bcf4 Re4 Nb7 Qfe3 Nh7 g5+ Kg7 g6 Kh6 Be2 Nf3 g7 Kh5 Bd1 Rf2 Qd3 Bfd2 Qde2 Rf1 Rd8 Rg1 Rb8 Rd8 g8Q Re8+ Kf7 Rd8 Qgg2 Rg8 Ke7 Rg4 Qgg3 Rg8 Qf4 R8g2 Qg4+
r4Rr1/brb1Q3/bB4Qn/N1K2N2/3pP1BR/3P1R2/kbn3r1/n1R3QN b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 h5 gxh5 Be7 b6 Bf8 b7 Bd6 c4 Qe7 f4 exf4 b4 Qe4 c5 Qc6 b5 Qb6 cxb6 Bf8 Kf2 Ke7 e4 Kd6 h4 Kc5 d3 Kb4 h6 a5 h7 f5 h5 g5 h6 c5 Qe2 Kb3 Qd2 d5 Qe3 f3 Rh3 g4 Be2 c4 Nc3 a4 Nd1 Nc6 b8R c3 b7 a3 b6 c2 Qc5 g3+ Ke3 f2 Nf3 f1R Nh4 a2 Qe7 g2 Rf3 g1B+ Nf2 Bh2 Nh1 Nb4 Kd4 f4 Nf5 Rf2 Be3 c1B Kc5 Bb2 Rc1 a1N Bd4 Rg2 Bg1 Be6 Rc8 Ka2 b8N Bf7 b7 Nbc2 Nc6 Bfg7 b8Q Bgd4+ Kb5 Be3 Rf8 Ba7 Bb6 d4 Qbd6 Bc4+ Kc5 Ba6 Na5 Bg3 Qg6 Bh2 Rh3 f3 Rg3 f2 Bg4 f1R Rh3 Nf6 Rf3 Rg8 h8Q Bc7 h7 Re1 Qhg7 Rf1 Bh5 Ng4 h8R Nh6 Bg4 Rfg1 Rf7 Rgb8 Rff8 Rb7 Rh7 Ng8 Rh4 Nh6 Bh5 Rg5 Bg4 Rg2 Qgd6 Rg6 Qh2 Rg5 Qg1 Rg6 Qgf6 Rg8 Qg6
4BB1n/b1br3n/2n3PN/k1rR1NR1/p1q2Qp1/PRb3r1/1Q2B2N/2K3B1 b - - 0 1 legal: proof: g4 c5 e4 f5 gxf5 g5 b4 d5 bxc5 dxe4 h4 Be6 h5 Bc4 Bh3 Bf7 Bf1 Bg6 hxg6 Qb6 Bc4 Qa5 Bf1 Qd8 d4 Kd7 Kd2 Kc7 c4 a5 f4 h5 f6 b5 f5 e5 c6 Kb6 a3 e3+ Kc2 b4 d5 g4 c7 a4 c8N+ Ka5 f7 e4 f6 h4 d6 e2 c5 e1B c6 h3 d7 h2 c7 e3 Qd4 e2 Nd2 Rh3 Ngf3 Bc5 f8Q Nh6 f7 Rg3 Rb1 Nc6 Qb2 Ra7 Ne7 Qc8 Ne4 Bc3 d8R e1B Be3 b3+ Kc1 Bf2 Neg5 Bd6 Bc4 Bf4 Re1 h1R Nf5 Rh5 Nh2 Qa6 c8B Rd7 Bd3 Qc4 Be2 Bc7 Ba6 Bg1 Bb5 Bf2 Qd6 Bg1 f8B Nf7 Rd1 Nh8 Rd5 Bf2 Qf4 Bg1 Bd2 Ba7 Nf7 Rg5 N7h6 Rh5 Qc2 Rg5 Be3 b2+ Kd1 Rh5 Bg1 Rg5 Rb8 Rh5 Rc1 b1N Qb2 Nd2 Rc2 Ne4 Kc1 Ng5 Rcd2 Nd8 Re5 Nh7 Rdd5 Rg5 Bc6+ Ka6 Rb3 Rh5 Bb5+ Ka5 Ne7 Nc6 Rg5 Bd8 Nef5 Bdb6 Bgc5 Bc7 Bg1 Rd3 Rd6 Ne5 Nh4 Rg3 Rf5 Rd8 Be8 Rg5 Rd3 Rd5 Rd4 Nc6 Re5 Rf5 Rd2 Rc5 Rdd5 Rf7 Rg5 Rd7 N4f5
1n5n/2Q2bb1/BQ1RQPk1/2p1BNPq/N3Nrb1/r1r2nR1/1p2B3/1K4B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 a4 e5 g4 c5 d4 b5 Kd2 h5 Kc2 h4 d6 h3 f6 e4 g6+ Ke6 f5+ Kd5 d7 e3 a5 Ke4 g7 h2 g5 e2 f7 e1R a6 Qf6 d8Q Bd6 f8B Be6 d5 Rh5 a7 Ke5 Ra6 Ne7 g8N Rh7 Nd2 b3+ Kb1 b2 Qg4 b4 Be2 Bc7 d6 Qh6 d7 Rf1 Ne4 Bf7 Rd6 Rf4 Be3 Ng6 Ne7 Nh8 f6 Qh5 Nf5 Rh6 Rd1 Bd6 Qb6 Rh7 d8Q Be7 Kc2 b1N Rd6 Nd2 Qdc7 Nf3 Kb1 b3 Ba6 b2 Ne2 Rh6 Rg1 h1B N2c3 Bg2 Na4 Bh3 Rg3 Rh7 Bh6 Bf8 Bg1 Bg7 Qh4 Bg4 Qh3 Nc6 Be2 Re8 a8B Nb8 Bb7 Re7 Qd8 Rd7 Bc8 Ra7 Qdc7 Ra6 Nac3 Ra3 Na4 Rc3 Bca6 Ra3 Rg2 Nh4 Qhb3 Bf8 Ne7 Qg6 Qc4 Nf5 Bg7 Rhh3 Bh6 Rhd3 Rg3 Rdc3 Qcb3 Nh4 Qc4 Nc6 Rd5+ Ke6 Qa2 Qh5 Bg7 Nf3 Nf5 Bg6 Qbb3 Nb8 Qbb6+ Bd6 Bf8 Be8 Ne7 Kf7 Nf5+ Kg6 Rd4 Bf7 Qe6 Be7 Rd1 Bd8 Bd6 Be7 Rd4 Bf8 Be5 Bg7 Rd6
KnkN1bRQ/1r1R3B/1P1B4/2rB2NQ/2n3Bp/nq4p1/1Nr4P/1b1bQ3 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 a5 Ke3 h5 Ke4 g5 Kd5 g3 f4 g4 c4 h4 e4 a4 b6 g2 c6 d6 e6 g3 c5 a3 f5 a2 c7 Qd7 c6 Qh7 f6 Qh6 e5 Qd2+ Bd3 Rh5 e7 Qc2 Qe1 Qc3 Bf4 Na6 Nd2 Qb3+ Nc4 Rg5 Nh3 g1N Bh7 Qc3 Nb2 Bf5 c8B Nf3 c7 Rb8 Bb7 Kd7 f7 Nd4 e8N Bc2 Ng7 Nb5 Ne6 Nh6 Nd8 Na3 Rc1 Rh5 Ng5 a1R Rg1 Ng4 c8B+ Ke7 e6 Bb1 Rd1 Ne5 Rf1 Nec4 Kc6 d5 Bd7 d4 Bdc8 Kf6 e7 d3 e8Q d2 Bg4 Qb3 Rf2 Ra2 Bd6+ Bf5 Ba8 Rb7 Re2 Bg6 Re7 Bb1 Rd7 Ra7 Rc1 d1B Bb7 Nb8+ Kc7 Ra5 Bd5 Rc5+ Kb7 Rh6 Ka8 Rg6 Rc3 Rg7 Nd3 Rc2 Nb2 Be7 f8Q+ Rf7 Qg8 Bf8 Ra7 Rg7 Qh5 Rb7 Qh8+ Bg7 Be5+ Ke7 Rf3 Bh6 Rf8 Bg7 Rg8 Bf8 Bgf3 Kd7 Bd6 Kc8 Be2 Rf7 Re7 Rf3 Reg7 Rf7 Bef3 Rfc7 Rd7 Rb7 Bg4
1N2k1q1/1Br1QN2/1PBb4/2Nbp1R1/1nrB3p/Q2N1r1R/P1b1KnnR/8 b - - 0 1 illegal: No possible last move
1b1n1n1Q/1b1N4/P5RP/Bp1b1p1n/rN4r1/qR1K4/3RBrRQ/B1N1k3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 Ke7 Ke2 f5 a4 b5 d4 c5 h4 g5 d6+ Ke6 d7 b3 a5 c4 d5+ Ke7 a6 c3 d6+ Ke6 Rh2 c2 Na3 b2 Qd2 b1B Bb2 c1R Nc2 g4 Nb4 g3 Ra3 Qg5 d8B g2 d7 Nc6 Ba5 Nf6 d8R Nh7 Rd7 Bc2 Rb3 Ra1 Rd5 Ra3 Ba1 Ra4 Rd4 Bd6 Rdd3 Ke7 e6 Bb7 e5 Rag8 Rg3 Bd1+ Kd3 Bf3 Ne2 g1N Qa2 Qg7 Nc1 Nd8 Rhb2 Ne2 Rg4 Re8 Rg6 Ng3 Re2 Bb8 Qb2 Kf8 e7+ Kf7 Rh2 Bfd5 e6+ Kg8 Qe5 Nf8 Rf2 Kh7 Rd2 Qf6 Qe2 Qe5 Qh2 Qb2 Rg2 Qa3 Rd2 Nf7 Rg2 Rc8 e8R Rc2 e7 Rf2 Rc8 Nd8 e8N Ne4 Rc2 Nf6 Be2 Rg8 R6g4 Kh6 Rb2 Ne4 Nf6 Ng3 Nd7 Rg5 Rc4 Rg4 Rc6+ Kg7 Rg6+ Kf7 Nf6 Ke6 Ra2 Kd6 Rb2 Ke5 Nd7+ Kf4 Rd2 Rf1 h6 Be5 h5 Bb8 h7 Rf3+ Kc2 Rf1 Bf3 Rf2 Kc3 Ke3 h6 Nh5 h8Q Re2 Rg3 Rg2 Be2+ Kf2 Kc2 Ke1 Kd3 Rf2 Rg2
3RQ3/2N1r1pQ/2rQrn2/3q2N1/p1bPb2b/R7/RBnNRP1K/4kBn1 b - - 0 1 illegal: No possible last move, all moves rejected
3n3K/1Rn2rp1/1N1q2b1/Q3pBb1/1P3bn1/r2BN2Q/kN2P3/1BrN2RQ b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h6 g4 Kf7 gxf5 Ke8 Bg5 hxg5 Kd2 Kf7 Kd3 a5 Ke4 e5 c4 d6 b4 g4 h4 a4 f4 g3 b6 a3 c6 g2 c5 a2 b7 Ne7 h5 Qd7 c7 Ng6 h6 Ra5 h7 Qe6 c6 Qd7 f6 Ke6 f7 Na6 b8Q Rc5 f5+ Ke7 f6+ Ke6 Nd2 Rc2 Qb6 Rc5 Qa5 Qd8 Nc4 Rg8 h8Q Nb8 Nh3 g1B Nf2 Qe8 Nb2 Qd7 Bg2 Bh2 Rg1 Be7 Bh1 Bb7 c8B Rf8 Qc1 Rc3 Nfd1 Ra3 Qc3 Ba6 c7 Bf4 Qh2 Bc4 Ba6 Nc6 c8B Nd8 Bb5 Bb3 Bd3 Bc2 Bg2 Bb1 Qh1 Bc2 Rc1 Bb1 Rc2 a1R Rd2 Bc2 Bf3 Rc1 Bh5 Nh4 Bg6 Nf5 Bh7 Bb1 Bc2 Nh6 Qch3+ Ng4 Ba6 Qc7 Bad3 Kd7 Kf5 d5 Kg6 Kd6 Bf5 d4 Bcd3 Qb6 Rc2 Qa6 Rc7 Qc6 Bc2 d3 Rb7 d2 Bfd3 Ne3 Bf5 Nd5 Bcd3 Nc7 Bc2 Rg8 f8N Qc5 f7 Beg5 Nd7 Rf8 Nf6 Qd4 Ne3 d1N Nfd5 Nf2 Ned1 Ng4 N5e3 Qb6 Bg8 Qc6 Kh7 Qb6 Kh8 Qc5 Ng2 Kd5 Nge3+ Kd4 Bcd3 Qd6 Bc2 Re8 f8N Re7 Bgb3 Rf7 Bcd3 Bc2 Nd7 Bb1 Nf2 Kc3 Nb6 Bc2 Bd5 Bb1 Bd5e4 Kb3 Nfd1 Bc2 Qf1 Ka2 Qfh3 Bb3 Bc2 Bd5 Bed3 Be4 Bc8 Bh7 Bcf5 Bg6 Bb1+
1Q1nn1N1/R2NP1QN/1n2B1BK/Q7/2b1b3/Pp2r3/2Q1prRB/3qk1br b - - 0 1 illegal: No proof kernel
4R1KB/1Q1pN1B1/1nq5/8/bR1Np2r/bQ1Pr1bk/5Prn/nRNR2B1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 Ke2 Kf7 Kf3 Kf6 Kf4 a5 h4 g6 c4 b4 h6 b3 c5 b2 h5 a4 c6 a3 h7 a2 c7 Nh6 d3 Na6 b8Q Nb4 b7 Ng4 h6 Nh2 Nc3 b1R Nce2 e5+ Ke4 g5 Bf4 g4 Nf3 g3 Nfd4 g2 Nc1 g1B Qb3 Rg8 h8R Nd5 h7 Nb6 Qa7 Rg7 b8R Ba3 Re8 Ba6 c8N Bb5 h8B Ba4 Qb7 Qc7 Ne7 Qc8 Bg3 Kg5 f6 Kg4 f7 Kh3 Kf5 e4 Kf6 Qc6+ Bd6 Rg4 f8B Rg2 Kf7 Ra5 Bfg7 Rh5 Bde5 Rh4 Kg8 Rb2 Bg3 Re2 Rb1 a1N Bd6 Re3 Bg3 Kg4 Bf4 Nf1 Bg3 Bh2 B3e5 Bg3 Bd6 Nh2 Rd1 Kh3 Bc7 Be5 Bd6 Bf6 Bg3 Be5 Bf4 Nf1 Bh2 Bg3 Bg1 Nh2 Qa8 Nc4 Rb4 Nb6 Qb7
2rn2br/2p1q1b1/BQbk4/5BQ1/P1RQ4/1NNnP2r/1p2Q1N1/2B1nRK1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 a4 b5 d4 g5 h4 f5 e3 f4 d6+ Ke6 h6 f3 d5+ Kd7 h7 b3 h5 g4 h6 b2 e6+ Ke8 d7+ Ke7 Ne2 b4 Nd2 b1R Nb3 g3+ Kg1 g2 Nc3 Kd6 e7 Na6 e8B Bb7 Rh4 Bc6 Bg6 Nc5 Bf5 Ne7 Qe2 Bg7 Rc4 Qe8 d8N Rc8 Ne6 Nd3 Nf4 f2+ Kh2 g1N Ng2 Nf3+ Kh1 Rf8 h8Q Nfe1 h7 Qf7 Qg8 Qf6 Qf7 Rh8 Qg6 Qe6 Qf6 Rb2 Qd4 Rd2 Qb6 Rd1 Nd4 b3 Kh2 b2 Nb3 Ng6 Kh1 Nf8 Rb1 Qe7 Kh2 Ke5 d6 Ne6 d7 Nd8 Kh1 Kd6 Ra1 Rf8 h8Q Rd2 Qh4 Rd1 Qg5 Rh8+ Qeh5 Rd2 Be2 f1B Kg1 Ne5 Rb1 Rd4 Bed3 Rh4 Qe2 Rh2 Rg4 R2h3 Ba6 N5d3 Rc4 Nb7 Qd1 Be2 Ra1 Bf3 Qe2 Bd5 Rb1 Bg8 d8Q+ Qd7 Qe8 Nd8 Qe4 Qe7 Qed4+ Bd5 Bd2 Nc2 Rf1 Nce1 Qdg4 Be6 Bc1 Bg8 Qgd4+
rBQ2n2/P3kQ2/3NNrn1/rN1bB2R/2B4n/pK2NP2/1R1qp1b1/3Qb3 b - - 0 1 illegal: No proof kernel
3B2nQ/P4pb1/2Q2R1r/nqrnKB2/pRP1R3/4NbQQ/bk4r1/N5B1 b - - 0 1 illegal: No proof kernel
2qqq1QR/K5nb/5bRn/B3NBr1/Q1B2N2/2N1PpP1/6kp/1bRB3r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kg4 e3+ Kg3 b6 a5 Kb5 h5 c4 f5 e6 d5 b7 a4 c5 h4 e7 a3 e8R a2 g6 f4 g7 h3 c6 d3 c7 f3 Kb6 d4 b5 d2 Nc3 d3 Ba3 Nc6 b8N Bf5 Be2 Qc8 Bb4 Be7 Ba5 Nd4 Rc1 a1Q Qa4 d1B Nc6 d2 Ne5 Nh6 g8B Bdc2 Bd1 Bf6 Bc4 Bh7 Re6 Bb1 Nge2+ Kf2 g3 Kg2 Rd6 Ne6 Rc6 Rb8+ Ka7 Ng7 b6 Qa3 b7 Qaf8 Ra6 Qce8 c8B h2 Bf5 Rg8 Rb6 Rd8 b8Q Qc5 Qa8 Rb8 Rc2 Qcc8 Re6 Rb3 Rb2 Ra3 Rb8 Ra1 Qd5 Be7 Rg6 Bf6 Bdb3 d1Q Nf4+ Kf2 Qf7 Qd6 Rc1 Qdd8 Nfe2 Kg2 Bd1 Rf8 Qg8 Rf7+ Rb7 Rd7 Rc7 Rd4 Rf7 Rg4 Rf8 Rg5 Qd5 Ra2 Rh8 Rb2 Qg8 Rd2 Bdb3 Rd1 Bbc2 Rf1 Bd1 Rh1 Nf4+
q2rbR1Q/r1nBQ3/8/1Q3qB1/3BrNpP/p4k1N/n1PbRb1K/6QN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 h4 Kf6 f4 d5 Kf2 e5 Kg3 a5 h6 g5 h7 d3 b6 d2 b5 a4 b7 e4 b6 g4 Rh2 e3 Nc3 d4 Nh3 d3 Re2 a3 Kh2 Nc6 b8B Bd7 b7 Nge7 Ba7 Nd5 b8Q Bc5 Qb5 Re8 h8N Bb4 Ng6 Nc7 Bd4+ Re5 Qe1 Be8 Nd1 Ra7 Ndf2 d1R Nh1 d2 Qf2 Ba5 Qg1 Qa8 Bg2 Nb4 Bc6 Na2 Bd7 Rf1 Rb1 d1Q Ra1 Bd2 Rb1 Kf7 f6 Re4 f5 Rf3 Ngf4 Qf1 Qc6 Rg3 Rb8 Rf3 Qb5 Rg3 Rg2 e2 Rc8 e1B Re2 Bf2 Rd8 Kf8 f7 Ke7 f6+ Kd6 Rc8 Rd3 f8Q+ Re7 Qh8 Re4 Bc5+ Ke5 Rd8 Ree3 f7+ Ke4 f8Q Kf3 Qe7 Rd5 Bd4 Re4 Re1 Qd3 Re2 Rd6 Bdb2 Qdd5 Bd4 Qf5 Rb8 Bh5 Rf8 Be8 Bf6 Rd3 Bcb2 Rd5 Bg5 Rd6 Bd4 Rd5 Bc6 Rd8 Bd7
2B1N1r1/4N3/KQ2n1B1/4k1bR/1q1NNp1Q/1n2Q1pb/Prq3P1/1B2Rrq1 b - - 0 1 illegal: No proof kernel
5k1N/1qBBb1Bn/1q2Q1bQ/r2R4/1rPNb1R1/n1p2n2/1P3KpQ/4N2Q b - - 0 1 illegal: No possible last move, all moves rejected
Qq1R1K2/B1NbN1Br/R7/1B1R4/np1p2NP/6kP/1q1nn1Qb/b5rR b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 h5 dxc5 a5 b4 axb4 g3 h4 gxh4 Rh7 Qf3 Rh5 Qd1 Rh8 Kd2 Kf7 Kd3 Kf6 Kd4 d5 f4 g5 c4 b5 a4 b3 c6 g4 Kc5 g3 c7 b2 a5 b4 a6 g2 h3 Bd7 c8R Bg7 a7 e5 Kd6 e4 c5 e3 c6 e2 c7 e1N Bb5 Rh7 Qe2 Nd3 Ra6 Nh6 Be3 Nc5 Na3 b1Q Nf3 g1B Ne5 Qc1 Ng4+ Kf7 f6 Kg6 f7 Kf5 f8B Nb3 Qg2 Ba1 Bg7 Bh2 Bc5 Qe8 Rd8 d4 c8N Qb2 Bb6 Qg8 Ke7 Nd2 Bc5 Qe6+ Kf8 Qe5 Qg3 Ke4 Ne7 Nf5 Qg1 Ng3 f5 Kf4 f6 Qc7 f7 Ne2 Qg2 Qe5 Ba4 Qc7 Nb5 Qb7 Nc7 Qc8 Rd6 Na6 Rd5 Qb8 Bb6 Nc5 Bb5 Na4 Bc5 Qb7 Bb6 Rb8 a8Q Rc8 Ba7 Qb8 Ne8 Rc1 Nc7 Bc8 R8d6 Rf1 Ra6 Rg1 Kg8 Bd7+ f8R+ Bf5 Rfd8 Bd7 Qe4+ Kg3 Kf8 Bf5 Qc2 Be6 Qe4 Bd7 Qg2+
1Q2q1N1/r6b/1NR1N1q1/B2QN1PR/4rbr1/1nbp1Qp1/3B2P1/1n1kR1K1 b - - 0 1 illegal: No proof kernel
r3rRb1/2Q1R3/1BN1b3/NQ3P2/2n3Bn/P3p1NK/qp1q1R1n/N1b1Q1k1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 d4 Kd6 f4 c5 Kf2 e5 Kg2 g5 h6 b5 a3 b3 f6 b2 f7 e4 f5 g4 h7 g3 h5 c4 h6 c3 Kh3 g2 Nd2 b1B Ra2 c2 Nb3 b4 Na1 b3 Ne2 Nf6 Ng3 Bg7 f8R Nbd7 Qe1 Nb6 Be3 c1Q Be2 Qb2 Bg4 Be6 Bg1 Rg8 h8Q Nc4 h7 Bh6 Qg7 Bc1 h8Q Qf2 Re2 Ba2 Rh2 b2 Re3 Qd2 Qb7 Qb6 Qhh7 Qb3 Qb5 Rh8 Rf7 Rhe8 Rf8 Nd7 Re2 Nde5 Qhb7 Nf3 Re3 Nh4 Q7c6+ Ke7 d6+ Kd8 d7 Ke7 Qc8 Kd6 d5 Ke5 d8N Kf4 d6 Bg8 Re2 Be6 Bb6 e3 d7 Bg8 Nc6 Be6 Rh1 g1N+ Kh2 Ngf3+ Kh3 Nh2 d8N Qbc2 Rg1 Qb1 Na5 Bb3 Ndc6 Qa2 Nh1 Ke4 Qc7 Kd3 Rf2 Ke4 Bd1 Bg8 Rg7 Be6 Re2 Kf3 Re7 Bg8 Rd7 Nd6 Rg7 Bbe6 Ng3 Nc4 Re7 Qd3 Rc2+ Qe2 Qc3 Kf2 Qcb4 Kg1 Qe1+ Nf1 Rd2 Qd3 Bh5 Qd5 Rf2 Qd2 Qe2 Nh2 Bg4 Qd5 Qd2 Qd7 Qe2 Qd2 Qe1+
1b1Q1r2/Bn2R2K/Qqq1B2R/NR2p3/b2n1P2/6n1/1r1bPNRp/BN3k2 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 cxd5 fxg4 h4 Bg7 hxg5 Bf8 f4 Kf7 Kf2 Kg6 Ke3 Kf5 b4 a5 d4 h5 g6 c5 b6 e5 b5 c4 g7 a4 b7 c3 b6 a3 d6 h4 d5 g3 d7 Kg4 Ke4 c2 d6 h3 Nc3 a2 Ba3 c1B Bb2 g2 Nb1 Kg3 Kf5 Kf2 Kg6 Nh6 g8R Na6 b8B Qc7 d8Q Bd7 b7 Ba4 d7 Bd6 Ba7+ Nc5 b8R Bd2 Rb5 Nf5 Qf6 Qb6 d8N Qc6 Nb7 Rf8 Na5 Ng3 Rg7 Bc7 Re7 Bb8 Qd6 Rhg8+ Kh7 h2 Nh3+ Ke3 Qe6 g1Q Nf2 Rg6 Bh3 Rgg8 Rb6 Nb7 Qc4 Rg6 Qa6 Rd6 Bd7 Rd4 Bc3 Rb4 Be6 Rb2 Rb5+ Qb6 Rf7 Qg2 Re7 Qc6 Rg1 Qd5 Na3 Qc6 Rb1 a1N Rg2 Nc2 Ra1 Be1 Qd8 Bd2 Rag1 Nd4 Nb1 Nf1 Rg6 Ng3 Rh6 Rb3 Ne4 Rb4 Ba1 Rb2 Ng5 Kf2 Rg2+ Ke1 Ne4 Kf1 Nf2
1Bn1r2b/1n1R1Q1N/2q2rn1/B2Bp2K/1RQR1p2/1q4RP/2P1Q1N1/1b1r1k2 b - - 0 1 illegal: No possible last move, all moves rejected
rQ2b3/4BBnR/4RB1N/2qRp1kq/pN5b/K3N3/RP4rP/3nr1Qn b - - 0 1 illegal: No possible last move
2N1R3/1rNrB1B1/8/1RP3qr/n1bn1PqN/K1Q4B/2q1kppQ/2R3bR b - - 0 1 illegal: No proof kernel
2Q2N1R/r1nB1Q1n/5n2/2pr1pN1/1k1NP1Nb/R1B1q2b/KP1b1Rq1/1Q6 b - - 0 1 illegal: No possible last move
k7/q3b1QN/1Q2R1R1/1p2p1B1/2nrnb1B/N1qrPBQ1/3nPR2/3KBb2 b - - 0 1 legal: proof: c4 d5 cxd5 h5 g4 a5 gxh5 Qd7 b3 Qh3 b4 Qe3 fxe3 axb4 h4 Kd7 d4 b5 a4 g5 h6 f5 h5 c5 h7 Kc7 a5 Kb7 h6 e5 d6 f4 d5 b3 d7 c4 d8B f3 d6 g4 d7 g3 Na3 c3 Qd6 c2 Bg5 b2 d8B b1Q Nh3 g2 Rh2 g1B Rf2 Nf6 Bg2 Qa2 Bd2 Bh2 a6+ Ka7 Bh4 Be7 Ng5 Nc6 B2a5 Rf8 h8R Bh3 h7 Ne4 Rg8 Bf4 h8Q Rc8 Qd4+ Ka8 a7 Re8 Bc3 Na5 Rg6 Rc4 Qb6 Rd4 Qg7 Nc4 Nh7 Rd3 Rd1 c1Q Bd2 Qcb2 Ra1 Rg8 Kd1 Qc3 Bh1 Bf1 Rc1 Bc5 Bdg5 Be7 Re6 Rd4 Rb1 Rgd8 Rb4 Ncd6 Rc4 Rd3 Rc6 Nc4 Rg6 R8d4 Rce6 Bf6 Rh2 f2 Bf3 Bh3 Rg2 f1N Rh2 Be7 Rf2 Qa5 Kc1 Bg2 Be1 Nfd2 Kd1 Bf1 Qd8+ Kb7 Qdg8 Qc3 a8Q+ Kc7 Qad8+ Kb7 Nb1 Qa7 Na3 Qb8 Qb6+ Ka8 Q8f7 Qc7 Qf5 Qb8 Qh3 Qa7 Qg3
q2Q2q1/R2Qq3/b7/P1nQ2N1/rpN1rB2/1B5P/rn1p1KRk/R1bB1Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 a4 b3 c4 Kf7 f4 Kf6 h6 g5 h3 d5 h7 b5 c6 e5 c7 b4 c5 e4 c6 b2 Be2 g4 Bf3 e3 Ra3 g3 Rb3 d4 Nd2 Nh6 Nc4 b1R Bh5 g2 Nf3 Rg8 h8R d3 Rh7 e2 a5 Ng4 Rf1 Ba6 c8Q g1Q Ra7 Nd7 c7 Ra1 Rc3 Ra4 Qd2 Kg7 f6+ Kh6 f7 Nc5 f5+ Ne3 f6 Rg2 Ra3 Bg7 f8Q Qd5 Qg4 Re8 f7 Qa8 Qd6+ Re6 Qd8 Bb2 Rb3 Re7 Qgd7 Rf2 Rc3 Qg8 Ng5 Nd1 Bg4 Kg6 f8Q Rg2 Qf2 Re6 Bf3 Kf5 Ra3 Rh2 Rg1 Rg2 Qf1 Rf2 Ra1 Rh2 Ne3+ Kf4 Nc4+ Re3 Rg2 Ba3 Rg1 Rg2 Bg4+ Kg3 Bh5 Kh2 Bg4 Rf2 Rg3 Nc3 Qd1 Re5 Bf4 Bc1 Qc2 Nd1 Qd2 Rf3 Bh5 Ra2 Bg4 Nb2 Bh5 Rfe3 Kf2 Re8 Qc3 R8e5 Qcd4 d2 Q4d5 Rb3 Bg6 Rbe3 Bc2 Rea3 Bb3 Ra4 c8B Qf7 Q7b7 Qg8 Bg4 Re7 Qbd7 e1Q+ Kf3 Qe4+ Kf2 Qeh7 Bh5 Re4 Bhd1 Qe7 Rg2#
2Rq2R1/QN2N3/1rQ1r3/Pb1b3K/1p5P/kR2bp2/nn1NQBB1/1q1nR3 b - - 0 1 illegal: No possible last move, all moves rejected
R1n4Q/2KR4/1Q1N1r2/P1B1Rpbb/2Nk4/n2Brb2/1p1Pr2q/2Q2QqN b - - 0 1 illegal: No possible last move, all moves rejected
QK1RR1bN/n1B2q1r/1NQ1bk2/pN1B3q/1r6/P1Q1B1p1/2n2PQ1/2q4b b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 Bh6 gxf5 dxe4 Na3 g4 Nb1 Bg5 hxg5 Qc7 Bg2 Qd7 Bf1 Qd8 Ke2 Kf7 Ke3 a5 Kf4 h5 Ke5 b5 d4 b4 c4 b3 d5 e3 c6 h4 g6+ Kg7 c5 h3 f6+ Kf8 f7 Kg7 a3 h2 d6 b2 c7 e2 d7 e1Q+ Ne2 e6 Kd6 e5 c6 e4 Qd3 e3 Bg2 Ra7 Nf4 e2 Nc3 b1B Nb5 Rh5 Qc3+ Nf6 f8N Rf5 Nd5 Ba2 Nb6 Qe8 d8B Bd7 c8Q Rf4 c7 Nc6 Qa8 Rb4 c8Q Qd1+ Bd2 Rb7 Re1 Na7 Q8c6 h1B Be4 Qb3 Rad1 Bf5 Bf4 Bc8 Rd4 Nd5 Bg2 Re7 Bc1 Kf6 g7 Bf5 g8Q Qh5 Ng6 Ne3 Nh8 Nc2 Bh6 Bd7 Kc7+ Qe6 Kb8 g3 Qg4 Bd5 Bc7 Rh7 Qh3 Bb3 Be4 Ba2 Qg2 Bc8 Rc1 e1Q Bf3 Qd2 Re1 Qc1 Re5 Bc4 Rd8 Bb3 Be3 Bd7 Bd6 Qe7 Be4 Bg8 Bd5 Qef7 Re4+ Kf5 Ree8 Be6 Qb3 Kf6 Bc7 Qd2 Qd3 Qc1 Qdc3+
4B3/8/1q1qRB1Q/pQRN1B2/PrB5/q1bnK1Q1/P2R1p1r/1nk1bN1r b - - 0 1 legal: proof: h4 d5 c4 e5 cxd5 g5 hxg5 Bd7 f4 exf4 b3 Ba4 bxa4 Qd7 Ba3 Qe7 Bc1 Qd8 Kf2 Kd7 d4 Kd6 e4 h5 g4 f5 g6 c5 g7 a5 g5 b5 g6 c4 Ke2 f3+ Ke3 f2 Rh2 c3 Qd3 h4 Qd1 c2 Bb2 c1B+ Kf3 f4 Nc3 b4 Qe2 h3 Qb5 b3 Bc4 Nc6 Nge2 Nge7 g8B Bg7 Be6 Nb4 Bf5 Nd3 Ng3 Bd2 Re1 Rb8 Nf1 Qf8 Rg2 h2 Rg5 h1R Re2 Bf6 g7 Be1 g8Q R8h2 Qg6 Qd8 Qh6 Rb7 Ba1 b2 Re3 b1Q e5+ Kc7 e6 Kd6 Ke4 f3 Re2 Qb6 Ke3 Qb2 Rd2 Qa3 Bb2 Ng6 e7 Ngf4 e8B Ne2 Rh5 Ng3 Ba1 Ne4 Re2 Nd2 Bb2 Nb1 Rd2 Ke7 d6+ Kd8 d7 Ke7 Nd5+ Kd6 Bfg6 Be5 d8Q+ Ke6 Qc7 Bg7 Ng3 f1Q Rf5 Qh3 Nf1 f2+ Qg3 Qh4 Rh5 Qf6 Re5+ Kd6 Bf5 Bh8 Nc7 Qg6 Rc5+ Be5 d5 Qf6 Qgg6 Bc3 Qg1 Ke5 Qg3+ Nf4 Ba1 Qfc6 d6+ Qd5 Qg1 Nd3 d7 Rb8 d8R Rb7 Ke2 Kd4 Qg3 Qdd6 Nd5 Bb2 Qc6 Qa6 Beg6 Rb4 Re8 Qb7 Re6 Qb6 Ne7 Kc3 Ke3 Rg1 Be8 Rgh1 Rd1 Kc2 Qb5 Bh8 Rd2+ Kc1 Nd5 Bg7 Bf6 Bh8 Bh4 Bc3 Bf6
1Nrnb3/k3r1bB/1B3qB1/pP1Qr2Q/q5R1/P1Bq4/R3n1p1/K4NQR b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 d5 cxd5 h5 gxh5 Rh7 Kf2 Rh6 Ke1 Rh8 h4 Kd7 e4 a5 b4 g5 d4 c5 Kd2 Kc7 Kc3 Kb6 Kb2 f5 b5 g4 a3 f3 h6 f2 d6 c4 h7 f4 d5 g3 e5 f3 e6 g2 h5 Nd7 e7 Qc7 e8B Ka7 h6 b6 Be3 Kb8 Ra2 c3+ Ka1 c2 Ne2 c1R Bg6 Bg7+ Nd4 Qc4 Bfd3 f1Q Bf2 Ne5 d7 Nf7 d8Q Qa4 d6 Ka7 d7 Rc7 Nd2 Ne7 Qe1 Re8 h8Q Nf5 h7 Qe2 Qg1 Re5 Nf1 Ng3 Bde4 Qd3 Nc6+ Kb7 Bef5 Ne2 Nb8 Ka7 Qg5 Rb7 d8R Bd7 Rg8 Be8 Qd8 Rbe7 Qd5 Nd8 Be4 Bf8 Bef5 Re4 Qhe5 Bg7 h8B Re3 Bh7 Re4 Bfg6 Re3 Be1 f2 Bc3 Re4 Qeh2 R4e5 Qh5 Bf8 Bf6 Bh6 Bh4 Bg7 Nh2 f1Q+ Bhe1 Qff3 Bf2 Qf7 Nf1 Qe6 Rf8 Qc6 Rf4 Qd6 Rg4 Qf6 Na6 Rc8 Nb8 Qac4 Re4 Qb4 Rg4 Qa4 Bxb6+
6N1/1N2nn1Q/1R2N2P/RRB1rQ2/2qp2rk/2pP1n1q/1b1QN2q/2bK1B2 b - - 0 1 legal: proof: g4 h5 a4 hxg4 b4 b5 c4 f5 e4 d6 exf5 Nd7 c5 Nb8 c6 Bb7 cxb7 Rh7 axb5 Nc6 b6 Nb8 b5 Rh8 h4 Kf7 f4 Kf6 d3 g5 h5 e5 h6 c5 Bg2 a5 Bc6 c4 Ra3 d5 Qb3 g3 Qd1 c3 Ne2 g4 Be3 g2 Bc5 g1N Nd2 a4 Rh5 g3 Nc4 e4 Qd2 d4 Kd1 e3 Bg2 Ne7 Nd6 Rg8 Bf1 Nbc6 b8N g2 b7 Qc7 b6 Ne5 Nc6 Re8 b8Q Ngf3 b7 g1Q Qa7 Qh2 b8R Nf7 Rb6 Rg4 Nb7 Qh3 Rab3 a3 R3b5 a2 Rg5 a1B Rh5 Ng6 Rg5 Re5 Ne7+ Qd6 Rh5 Qe6 Rg5 Bb2 Rh5 Nd6 Rg5 Qc4 Ng8+ Kf7 f6 Ne7 Rh5 Kg6 f7 Qh2 Rh3 Bc1 f5+ Kg5 f6 Bb2 Rg3 Kh4 Rg1 Bg7 f8N Nf7 Ne6 Bf8 Rg2 Rf4 Rg5 Rg4 N2f4 e2+ Kc2 e1Q Ne2 Nd8 f7 Qeg3 Kd1 Qgh3 Ra5 Bg7 f8Q Bf6 Rf5 Bg5 Qf7 Be3 Qh7 Nf7 Qb8 Ree4 Qf4 Re5 Rab5 Re4 Rd5 Re5 Qff5 Bf4 Rd8 Bg5 Ra8 Bf4 Raa5 Bg5 Qc2 Bgc1 Qd2
2N1nNk1/qbQQ4/rBq1r2P/3PpB2/R6n/1R2qnpQ/1b6/1B1KBR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 c5 d4 g5 a4 b5 h6 e5 h5 c4 a5 c3 f6 g4 d6 c2 f5 g3 a6 b3 h7 b2 d7 b4 a7 b3 Nh3 Bh6 Bd2 c1N Nc3 b1Q Nb5 b2 Nf4 Qc7 d8B Be6 Bd3 Qb6 Nd6+ Kf8 f7 Qc5 Ng6+ Kg7 f8R Nc6 Nc8 Bd5 Rf1 Nf6 Ra4 Qa2 Bb1 Nb3 Bb6 Ne7 Ke2 Qa1 Be1 Bb7 Qd2 Ne8 Kd1 Rg8 Qc2 Qd6 Qc7 Bc1 d5 Qc6 f6+ Kh6 f7 Kg7 Rf3 Nd4 Rb3 Nef5 Qd7 Nf3 h6+ Kf6 h8Q+ Rg7 Qh7 N5h4 Rh8 Qa2 f8Q+ Rf7 Qfg8 Re7 Nf8 Re6 Qg4 Qa3 Qc7 Qac5 Qhd7 Qe3 Bg6 b1Q Qh3 Qb2 Bb1 Qa3 Rg8 Qe7 Rgg4 Kf7 Rgf4+ Kg8 Rf5 Rb8 a8B Bb2 Rff4 Q7c5 Rf6 Qa5 Rff4 Qa7 Rf7 Ba6 Bb7 Ra8 Rff4 Qcc3 Bc6 Bb7 Bb5 Qc6 B5d3 Qb8 Bf5 Ra6 Rb5 Qa7 Rb3 Nd4 Rf2 Ndf3 Rf1
k2q1BR1/2Bq3n/5B1p/K1b4P/N2Q1Rr1/rbBP1n2/1Np1r2R/1QQ2n2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g6 f6 Qd7 f5 Nc6 Bd3 Qd8 f7+ Kd7 f6 Nb8 Bf5+ gxf5 h4 c5 b4 Kc7 g4 Kb7 g5 e5 h5 a5 g6 f4 g7 e4 d3 e3 b6 f3 b5 c4 d6 h6 d7 e2 Kd2 e1R Kc3 a4 Na3 f2 Bd2 f1Q Ne2 Qh3 Rh2 Qg4 Qc1 Bd6 f8Q Ra5 f7 Nf6 g8R Nh7 Qg7 Nc6 f8B Ka8 Qd4 Ne5 Rb1 Nf3 Rb4 Bc5 b7+ Ka7 b8B+ Ka8 b6 Ba6 Nb1 a3 Bc7 a2 Na3 a1N Ra4 Nc2 b7+ Ka7 Rb4 Ne3 Ra4 Bb5 Rb4 Ba4 b8Q+ Ka6 Qb5+ Ka7 Qb6+ Ka8 Qb5 Qe8 d8B Qgd7 Bf6 Bb3 Ra4 Qed8 Qb4 Bc2 Qbb1 Nf1 Rb4 Bb3 Ra4 Ba7 Kb4 c3 Nc4 c2 Nc3 Re2 Nb2 Rg5 Be1 Rg4 Ka5 Bc5 Rb4 Nhg5 Nca4 Rh7 Rh8 Rhe7 Rg8 Nh7 Qde3 Ree4 Qf2 Rc4 Qd4 Rc3 Rc4 Ba2 Rb4 Ra3 Bc3 Be6 Qde3 Bf7 Rf4 Bb3 Qd4
K1Qq3q/bB3b2/B1N3PN/1pR2Q2/k1qn3P/p1NQQ1r1/r2r1B2/Rn6 b - - 0 1 illegal: No proof kernel
1B1k1n2/1r2QR2/2b1q1pb/bB5N/Rn2r3/1q2PN1Q/1npR1PB1/1Q2QK2 b - - 0 1 illegal: No possible last move
1b1Q4/q7/2Q2Npn/4r1R1/P1bBRpB1/nQK1N2q/rBP2q1N/Qk4n1 b - - 0 1 illegal: No possible last move
N2qQ3/2RN3K/q4P1b/1p4Bb/r3QpN1/RBnr4/PnNnr2R/Q5k1 b - - 0 1 illegal: No proof kernel
k2NKRqr/1q4rR/4P1Qn/1B1BpQ2/3N2B1/5bQn/1q2P2p/bR1B1n2 b - - 0 1 illegal: No proof kernel
1KB3QB/Rn2bkr1/3p4/1n2Br1b/1rN1nqq1/1P1R1Q2/1PN1p1R1/2B1Q3 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 h5 gxh5 f5 exf5 cxd4 Qd2 b4 Qd1 b3 axb3 Rh6 Kd2 Rh7 Ke1 Rh8 Ke2 e5 Kf3 g5 Ke4 a5 Kd5 d6 h4 a4 c4 g4 f4 d3 c5 g3 h6 g2 h7 d2 h5 a3 f6 e4 c6 a2 f7+ Ke7 h6 e3 c7 e2 f5 Qd7 Rh3 Na6 Na3 Qe6+ Kc6 Qe3 f6+ Ke6 Qe1 d1N Nc2 Qf2 Rd3 Rb8 Nf3 g1Q Nd2 Nc3 Bh3+ Qg4 Nc4 Be7 f8Q Nc5 f7 Nf6 Qg8 Nfe4 f8Q+ Qf7 Rd1 Kf6 Rd3 Nb7 Kb6 Be6 c8R Nb5 Rc5 Bc8 Rg5 Bf5 Kc6 Bg6 Kb6 Bh5 Kc6 Qf3 Bc8 Qf5 Rg2 Qg4 Rb1 a1R Kb6 Na7 Kc7 Ra5 Ra1 Rg5 Ra2 Rg7 Ra3 Kg6 Ra4 Qf2 Qf3 Qfg3 Ra3 Q3f4 Ra5 Nc6 Ra7 Nd4 Qf8 Rhg8 h8B Rf7 h7 Rf5 Qd8 Kf7 Be5 Rg7 h8B Nbc5 N2a3 Rb4 Nc2 Nb7 Kb8 Nb5 Qg8+
2B1QQNq/rR1n3b/3pKb2/pR5n/2B4q/P4qR1/P2BN1r1/k1rBQ3 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 d4 cxd4 hxg5 Qb6 Bb5 Qc5 Bf1 Qa3 bxa3 Bg7 Qf3 Bh6 Qd1 Bf8 Kd2 Kf7 Kd3 a5 Ke4 b5 Ke5 h5 c4 d3 g4 d2 f4 b4 c5 h4 f6 h3 f5 b3 c6 b2 c7 h2 Ne2 Bg7 Nbc3 b1R Qe1 d1Q Bd2 Ra7 Nd5 Rc1 Rb1 e6 Kd6 e5 Ne7 e4 Rb5 e3 Ke5 Ba6 c8B d6+ Kd5 Nd7 g6+ Kf8 f7 Ngf6+ Ke6 Nh5 g5 Rg8 Bh3 Bf6 Bg4 Kg7 f8R Bb7 Rg1 h1Q Rg3 Be4 Rd8 Qf3 Re8 Qa4 Rf8 Qd4 Rf7+ Kh8 g7+ Kh7 Nf4 e2 g6+ Kh6 Rg1 Kg5 Rg3 Rh8 g8Q Qb2 Qg7 Rg8 Qf8 Qbc3 g7 Qd4 Qg1 e1Q Qe8 Qef2 Qe1 Qh2 Bb4 Qh4 Ne2 Qa1 Ng1 Kf4 Ne2+ Ke3 Bc3 Kd3 Bd2 Rf8 g8B Kc2 Rg7 Qac3 Bf7 Qb2 Ng8 Kb1 Rh7 Ka1 Rg7 Bd4 f6 Bc2 Bf5 Bb1 Bc2 Be5 Bd1 Bh7 Bg6 Qbd4 f7 Bf6 Bd3 Qc3 Bc4 Qb2 Nh6 Rg8 f8Q Qbd4 Re7 Rg4 Ng8 Rg6 Rg1 Rg2 Rf7 Bd8 Re7 Qh8 Rg7 Bf6 Rf7 Rh2 Rg3 Rg2 Re7 Nb8 Rc7 Nd7 Rcb7
5nQQ/1kRrN1K1/1Bp2r1R/2Bb1r2/pNq2Q1P/2q3Q1/P2N4/bn2nB2 b - - 0 1 legal: proof: c4 c5 b4 Qa5 bxc5 Qc3 c6 Qa5 c5 Qd8 c7 Nh6 Bb2 Ng8 Ba3 Nh6 Bc1 Ng8 e4 f5 exf5 h5 g4 Rh6 gxh5 Rh8 c6 dxc6 Ke2 Kd7 Kf3 a5 Kf4 g5+ Ke5 b5 d4 b4 f4 b3 d5 a4 d6 b2 f6 g4 f7 e6 h6 g3 h7 g2 f5 Na6 f6 Nb4 Qd3 Ne7 Nd2 b1N Nh3 g1R Qg3 Bg7 f8Q Ra7 Nf2 Nc2 Ba3 Ne1 Bc5 Rg8 Qf7 Rf8 h8Q Rg2 Nd3 Rf2 Qfg8 Rf5+ Ke4 e5 f7 Bf6 Nb4 Ng6 h3 Ba6 c8N Bc4 Ne7 Qb6 Rg1 Qb5 h4 Kd8 d7 Kc7 d8B+ Kb7 Bdb6 Bg7 Rg2 Rf6 Rf2 Be6 Rf5 Bb3 Rh5 Bd5+ Ke3 e4 Kd4 e3 Rh6 Rb8 f8Q e2 Qff7 Nf8 Ke5 Rd8 Nd3 Rd7 Nb4 Nc3 Rb1 Ra5 Rb3 Nb1 Re3 Qc4 Rb3 Rg6+ Kf5 Re6 Kg5 Ba1 Qff4 Rf6 Re3 Nc2 Re6 e1Q Rd6 Rc7 Rd8 Rd7 Rc8 Qe3 Rg6 Qeb3 Kh6 Qbc3 Kg7 Ne1 Rh6 Bg2 Be3 Raf5 Bec5 Bd5 Rc7+
1n2R2n/1N1r3k/2p1qQQ1/b4Bpq/n4R2/3P1rB1/R2Pr1N1/1bQK1BB1 b - - 0 1 illegal: No possible last move
bR1bNr2/R3r3/2pn2Kn/1PNPq1n1/1pBb1Q1k/8/1B1R2q1/Q1Q3QN b - - 0 1 illegal: No proof kernel
B2R3n/N5q1/bRppr2r/1b2R2q/1P1RK3/B1NPQNk1/r2Q4/Q1n1n3 b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Kd3 Kf6 f4 a5 g4 h5 b7 e5 b6 e4+ Ke3 d6 d3 a4 Ba3 h3 Nd2 h2 Ndf3 h4 Bg2 h3 Qd2 Nc6 b8N Nh6 b7 Qf8 Re1 Qg7 Ne2 Nf7 Nc3 Na5 Nc6 Nb3 b8R Nc1 Na7 Ba6 Rb6 Rh6 Re2 Nh8 g5+ Ke7 g6 Kf6 Kd4 e3 Ke4 Rb8 Rf1 h1B Rfe1 h2 Rf1 Ke7 f6+ Ke6 f7 Re8 f8Q Bb5 Ree1 e2 Qe3 Re7 Qa8 Ba6 f5+ Kf6+ Ne5 Re6 Rf4 Kg5 f6 Bb5 f7 Ba6 Rf5+ Kh4 f8Q Bb5 Qd2 Kg3 Qe7 Ba6 Ref1 e1N R1f4 Bb5 Bf3 Bg2 Qee8 h1Q Qe7 Qh5 Rh4 Qh7 g7 Bh3 g8R+ Qg7 Rd8 Bg2 Bb2 a3 Rhf4 a2 Ba3 Bh3 Bh1 a1R Bg2 Reg6 Nf3 Ra2 Re5 Re6 Rh4 Ba6 Qeg5+ Bg4 Qge3 Bf5+ Kd5 Bg6 Rd4 Be8 Ke4 Beb5 Qd5 Rb2 Qa2 Rc2 Qa1 Ra2 Bh3 Reg6 Bc8 c6 Bb7 Re6 Ba8
4b3/KnQ3Nr/QP6/R1Bq2bR/2N2k2/3Bp2P/nqQbBpB1/2R1q1r1 b - - 0 1 illegal: No proof kernel
QrRN1nn1/1nB2k2/P5N1/R2rqNrb/2PN2q1/pQ1p4/8/1BQ2BbK b - - 0 1 illegal: No proof kernel
n1b1Qr2/2b2n1k/P3R1PN/2R2B1R/2Q2B1p/N2Nr1N1/Kb2p1n1/4q1qB b - - 0 1 illegal: No possible last move
1k3QQq/n1nR4/P1rb2p1/1PBQQr1B/6pK/3bq3/BRN3N1/2q2rN1 b - - 0 1 illegal: No possible last move, all moves rejected
1B1k2Q1/1n3NR1/P1pr2Qr/2B1bK1b/2qN1bR1/Q2r2q1/2pQBP2/1R3n2 b - - 0 1 illegal: No possible last move
7b/1brR1B1k/p2q1q1R/QNrn3N/4PbKP/1p6/1rQR1B2/1nRQ2N1 b - - 0 1 illegal: No proof kernel
8/R6Q/p2n2b1/PP2nN1r/p1RN2k1/2qR3B/nQ2qBK1/brNRb2Q b - - 0 1 illegal: No possible last move
KQ4r1/3R1b1N/pPNQ1P2/5p1R/1b5b/2rn1B1n/1q1qr2B/kB1Q1R1R b - - 0 1 illegal: No proof kernel
2B2Q1N/3nR2P/1R5q/nR1K2bb/2B1n1r1/k1BNP2p/2p1qq1B/2r2QN1 b - - 0 1 illegal: No proof kernel
qq3B2/2n1QrQP/bR2nqBN/1n3Bp1/2kP2R1/p5N1/3b1Rr1/1K4RN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 a5 d4 c5 Kd2 g5 Kc2 f5 b6 f3 h6 c4 h5 f2 b5 c3 b7 a4 e5+ Ke7 b6 f4 h7 f3 d6+ Ke6 h6 Kd5 d7 Qe7 d8N Qf6 e6 Na6 b8R Ne7 b7 Qg6+ Bd3 f1Q Bf5 f2 Ne2 Nc6 e7 Na7 e8B Nb5 Ba3 Qh3 Qe1 f1Q Ng3 Bb4 Qe7 Ra7 Nf7 Qf3 Nd2 Nac7 Ndf1 Kc4 Kb1 Qf6 Rg1 Qh2 Nh1 Q3c6 Nfg3 c2+ Kc1 Rf8 h8Q Bd2+ Kb2 c1N h7 Qcg2 Kb1 Ne2 Nh6 Nf4 Beg6 Rf7 Qg7 Nfe6 Ra8 Qd5 b8R Ba6 Rb6 Rb7 Bb4 a3 Rf8 Rb8 Ra2 Qa8 Rb2 Be3 Rf2 Bd2 Rd6 Rb6 Rf4 Rc6 Rg4 Rc5 Rb6 Re5 Rd8 Re2 Rd5 Rg2 Re5 Qb7 Re2 Qb8 Rf2 Qa8 Nf1 Qd6 Nfg3 Qdd8 Qe8 Qdc8 Bf8 Qcb8 Qe7
q1B1RK1n/2Q3Np/Q3P1qn/3BBQNP/3b2p1/2krr3/R1b1Q3/N2r1b2 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 f5 a4 e5 axb5 Ke7 dxe5 Ke8 g4 fxg4 Kd2 Kf7 Kd3 Ke6 Kd4 a5 f4 d5 e4 g5 h4 a4 c4 a3 h5 g3 c6 a2 c7 g4 f5+ Ke7 Kc5 g2 b6 d4 b7 d3 e6 Kf6+ e7 Ke5 f6 d2 f7 Ra4 Nh3 g1R Bb2+ Ke6 e5 Rg2 Na3 Nf6 Qe2 d1B Nc2 Nc6 b8Q Rg1 Bg2 Bg7 f8Q Ra3 e8N Ba6 c8B+ Qd7 Bd4 Ne7 Qc7 Rd3 Ng5+ Kf5 Bb2 Qe6 Bd5 Ng6 Bd4 Rgg3 Re1 Rge3 Qfd6 Bb5 Qa6 Ng8 Bc3 Bf6 Ng7+ Kf4 Bb2 Nh6 Bd4 Qe8 Kd6 Qf7 c5 Rd8+ Bd7 Qe8 c6 Nh8 Bb2 Qg6 Ke6 Rg8 Bc8 Rf8 Kd7 Rf7+ Ke8 Rd7+ Kf8 Rd6 Rb1 a1Q Bc3 Qa3 Na1 Bc2 Rb2 Rd1 Ra2 Qa4 Qd2 Bf1 Qde2 Rdd3 Rb1 Rd1 Rb8 Qae4 e6 Bd4 Qf7+ Ke5 c7 Rb6 Bb2 Rbb3 Qff3 Rbd3 Qff2 Bc3 Qf5+ Kd4 Ra8 Kc5 Rb8 Bf6 Ra8 Kb4 Be5 Qh1 Bd7 Qg2 c8Q Qe4 Qc7 Qf3 Bg3 Bd4 Be5 Qe4 Re8 Qf3 Bc4 Qa8 Bc8 Kc3 Bd5+
1k2QQBR/2n1R1P1/2rqN2r/r6q/5n1P/1b4qp/1bp1NR1N/4BNBK b - - 0 1 illegal: No proof kernel
7r/2NR1bP1/Kp2RN2/4q3/Bq3rnb/3P2R1/p2rbkQB/R1B1nN1Q b - - 0 1 illegal: No proof kernel
nQ2BR2/bK3Rp1/1p1R2N1/B1q3Q1/k2N4/P6n/Rr2qnPb/1b2rQ1B b - - 0 1 illegal: Other
3r2q1/NQRB1pb1/3BkP2/r3n2b/2bnr3/4Q1Q1/R1PN1Kpq/B1R3B1 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 e4 Ke7 f4 g5 h4 a5 h5 d5 e6 d4 e5 d3 h6 g3 c6 g4 f5 a4 b6 a3 h7 a2 b7 g2 c7 g3 Qg4 Bg7 Be3 Bh6 Nf3 g1Q Na3 g2 Nb5 Ra4 Na7 Bg5 Qg3 Na6 b8B Bb7 c8Q Bd5 Qb7+ Nc7 Bf2 d2+ Ke2 Ke8 e7 Kd7 e8R d1B+ Ke1 Be6 Nd2 Ne7 Rg8 Qh2 Bb5+ Nc6 Bc5 Qf6 Rc8 Rd8 h8B Qg6 Bd4 Bd5 e6+ Ke7 Rf1 Qg8 Bg1 Bh6 Kf2 Bh5 Rfc1 Rc4 Bb2 Bg7 Be5 Rg4 Bd4 Bc4 f6+ Ke8 e7 Ne6 Bc3 Nd4 Bd6 Rh4 Rc7 Rg4 Rab1 a1R Rb2 Ra5 Ra2 Rh4 Ba1 Rg4 Qa6 Rh4 Rc8 Kd7 Rc7+ Ke6 e8Q+ Kd5 Qee3 Ne5 Be8 Ke6 Qb7 Re4 Bd7+
2N2R2/2k2pr1/pb2q3/n1Qn1BrQ/r4RQ1/qbN2PK1/2BP2R1/3B2nB b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 b3 Na6 Bb2 Nb8 f3 e5 Bd4 e4 Bf2 e3 Qc1 exf2+ Kd1 Bb7 Qc2 Ba6 Kc1 Bb7 Qd1 Bc8 e4 Kd7 g4 h5 g6 c5 e5 a6 b6 c4 b4 c3 g7 h4 b7 h3 b5 c2 d6 h2 b6 Nh6 g8B Nf5 e6+ Kc6 d7 Kd6 e7 Nd4 e8B Qh4 d8R+ Nd7 b8Q+ Kc6 g5 Bd6 b7 Rh7 g6 Bf4 g7 Qg3 Qc7+ Kd5 b8Q Qg4 Na3 Rh4 Bg2 f1Q Ne2 Bd6 Nb5 Bf4 Nec3+ Ke6 Na7 Rh7 Qc5 Bc7 Ra4 Qd3 Rg1 h1R Qbb4 R1h4 Bh1 Nc6 Rg2 Nb6 Qbd4 R7h5 Bh7 Nd5 g8B Na5 Bb5 Rb8 Rf8 Bb6 Qh8 Bb7 Rf4 Rg5 Qdg1 Rc8 Bc4 Kd7 Bb3 Qe6 Bf5 Rc6 Ba4 Kc7 Nc8 Rh7 Bb3 Rhg7 Qh5 Qde3 Bgh7 Qd3 Kb2 c1N Bd1 Ne2 Qgd4 Ng1 Kc1 Qde3 Bfc2 Ba8 Qe4 Bb7 Qf5 Qd3 Qfg4 Ba8 Bf5 Qde3 Qd4 Rc4 Qc5+ Bc6 Be2 Rb4 Kd1 Ra4 Ke1 Qd3 Kf2 Qde3+ Kg3 Qd3 Na2 Qa3 Qb5 Bd7 Bed1 Be8 Qb4 Bb5 Qd4 Bc4 Nc3 Bb3 Qc5+
2b2Qn1/2N1Pk1q/r1N1N1r1/QP1N3q/3bp1BR/2BB1q2/2K2pn1/Q2n1R2 b - - 0 1 illegal: No proof kernel
rQBR4/n1BBP2q/N1pP3b/6q1/2r1NB1N/k1b1R1nQ/1p4b1/1KR2q2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 Kd7 Kd2 g5 Kc2 b5 h4 f5 a4 g4 e4 c6 e6+ Kd6 a5 f4 h6 g3 h7 g2 e5+ Kc7 d6+ Kb7 a6+ Kb6 a7 f3 d7 f2 e7 Bh6 e8B Qc7 d8B Nf6 d5 Kc5 h5 Qd6 e6 Qh2 d6 Na6 e7 Qh4 Bc7 Ne4 Ra3 Qg5 Re3 Bh3 Qf3 Ng3 Nc3 b3+ Kb1 Kb4 Ne4 b2 Bd7 Rhb8 Bc4 f1Q h8Q Rb6 Bb3 Ka3 Qb8 b4 Qf5 Rb5 Nf3 g1B Nh4 Bg2 Qh3 Rc5 Bbe6+ Rc3 Bc8 Bf2 Bed7 Be1 Re2 Rc5 Bf4 Rc4 Rg1 Bc3+ Re1 Bf8 h6 Bfg7 h7 Bh6 Bb6 Nc7 h8R Nb5 Bc7 Qe2 Rgf1 Qeh5 Re3 Qhg6 Kc2 Qh7 Rc1 b1Q+ Kd1 Qa1 Kc2 Ka4 Rd8 b3+ Kd1 b2 Kc2 Qa3 Kb1 Kb3 Re8 Qa6 Rd8 Ka3 Be8 Ra4 Bb6 Rd4 Bed7 Rb4 Qb7 Rb8 a8N Na7 Nc7 Ra8 Qb8 Qf1 Na6 Rc4 Bc7
2B2nQ1/2QbP1bN/1rpp4/k4q2/qB3RPr/B5R1/2bR1N2/q2nQQK1 b - - 0 1 illegal: No proof kernel
R2nBq1q/K3PQb1/Pp1BbBpN/5N1N/2N5/3k2n1/r1n1R1qr/QR6 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 f5 Kd4 b3 a4 b2 h4 c6 e4 g6 d6 Ke6 Kc5 f4 d4 f3 h6 f2 a5 Qe8 Kb6 c5 h5 c4 h7 c3 a6 c2 d7 Qf7 d8N+ Kd7 h6 Qf4 e6+ Kd6 e7 Bf5 e8Q Qh2 e5+ Kd5 e6 Ke4 d5 Qh3 d6 Nf6 e7 Qh5 d7 Nc6 Ne6 Qe2 d8R Bh3 Nd2+ Ke3 Rh2 b1N Qf7 Ra7 Ra8 Qf3 Bb5 f1Q Ne2 Q1g2 Ng3 Ne4 Nd4 Bg7 Ba3 c1Q Bd6 Qb2 Nh5 Na3 Rb1 Ng3 Nc4+ Ke4 Qa4 Nc2 Qa1 Nd8 Nf5 Qf6 Be8 Kd3 Qe6 Qf8 Qf7 Qh1 Re2 Qfg2 Nfe3 Be6 Nf5 Rg8 h8N Qhh3 Kc7 b6+ Kb8 Rc7 h7 Rc5 Ka7 Ra5 Qff6 Qhh1 Nf7 Rh8 N7h6 Ra2 Qf7 Ne3 Ng4 Rb2 Nhf6 Ra2 Bb5 Rg8 Bd7 Nc2 Be8 Bh6 h8B Qh5 Bg7 Rh8 Nd7 Qhh1 Bd4 Bg7 Ndf6 Qh7 Bb2 Qhg8 Bbe5 Rh1 Nh5 Rh2 Ngh6 Qh8 Bf6
bQR3n1/1rNrp1np/QN2P1B1/2R5/1N6/K7/R3kqPq/QQ2bnBq b - - 0 1 illegal: No possible last move
b3N2b/1nNPn3/3kr1Bq/BB1qp3/1RQ1Pr2/R3Q2p/2BR4/nK3Q1q b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 Qd7 c4 Qh3 cxd5 Qxh2 e4 Kd7 d4 c5 Kd2 e5 Kc2 f5 b4 h5 b6 a5 g6 h4 b5 f4 b7 c4 g7 c3 b6 h3 d6 f3 d5 a4 Bd2 a3 g4 a2 g5 f2 g6 Qf4 Ne2 Nh6 g8B Qf6 g7 Qe7 Nd4 Qh4 Nf5 Na6 b8Q Rh7 b7 Nf7 Qa7 Rh6 b8R+ Nc7 Rh2 Be7 Bb5+ Kd8 d7 f1Q Bh7 Qh1 g8B Qh5 Qf1 Nd6 Ng7 Re6 Bg6 Bf6 Na3 Ke7 Ne8 Qh6 Qe3 Nb7 Kc1 c2 Ba5 Raa6 Rd2 Bh8 Kb2 Rf6 Qc4 Rf4 d8Q+ Kf8 d6 Nd5 d7 Re6 Qg5 Ne7 Qg2 Qd1 Qge2 Qh1 Qf1 c1Q+ Kb3 Qd1+ Kb2 Ref6 Bd5 Re6 Bdc6 Qb3+ Kc1 Qd3 Ba4 Qd5 Bcb5 Rff6 Bc2 Rf4 Rb1 a1N Rb3 Nc5 Rb6 Bb7 Kb1 Ba8 Rb4 Nb7 Ra6 Qg2 Bc6 Qh1 Nb5 Nc8 Nbc7 Ke7 Ng7 Kd6 Bb5+ Ke7 Bb6 Kd6 Ra3 Ne7 Ba5 Qh2 Rad3 Qg1 Ra3 Qh1 Nge8#
1rq1Q3/B1kP4/1q1p3K/2r2N1Q/2bpNnBb/n3nQ1R/2P3q1/1BRB1R2 b - - 0 1 illegal: No proof kernel
1B2q3/1BRp1bQ1/2RN1rQn/NrQR3k/2Pq4/2rn2Pp/5Nn1/2bKN3 b - - 0 1 illegal: No possible last move
n1Qq4/3pQ1Pb/1N1b2n1/2R1rBqR/NK3bq1/Bp2P3/Rr2R2Q/2B2k2 b - - 0 1 illegal: No proof kernel
k2N4/R1PN1qN1/1Q2Q3/2rp2p1/Bb6/1q1rRR2/bP1q4/n1BbBNKn b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 e5 f4 d5 Kf2 Kd7 h4 Kc7 f6 Kb7 f7 a5 f5 g5 c5 d3 h6 d2 f6 a4 c6+ Ka7 h5 a3 c7 e4 b6+ Kb7 h7 a2 h6 Bd7 Rh3 Be6 Re3 Nd7 Qg4 d1B Nh3 Ba3 f8N Bb4 f7 Qe8 Bb5 Ra3 Nf4 Bf5 Ba4 Rd3 N4e6 Nc5 Kg1 Ka8 Nd2 Nf6 Nf1 Nh5 Ng7 Nb3 Nd7 Ng3 f8R Nh1 Qe2 Bg6 Rff3 Qf7 Qe1 Rc8 h8B Rb8 h7 Rb7 Qe2 Ra7 Qe1 Ra5 Qe2 Rc5 b7+ Ka7 b8N Ka8 Nc6 Bf5 Nd8 Bg6 Rb1 a1Q Qe1 Qa2 Ra1 Qa3 Ra2 Na1 Qe2 Rd2 Qb5 Qb3 Qb6 Rd3 Ra3 Qc2 Rc3 Qb3 Rc4 Be1 Rb4 Bf5 Rb5 Bb4 Qe6 Bg6 Rb7 Bf5 Ne8 Bg6 Bc3 Bf5 h8Q Bh7 Re1 e3 Qhf6 e2 Qh6 Rd2 Qhf6 Bb1 Ng7 Ba2 Qb6 Rd3 Qfe6 Bc2 Rd1 e1Q Re3 Qh4 Be1 Qd4 Rd2 Qdc3 Rf2 Qd2 Rff3 Bd1 Ra7#
2RN2R1/K1p1k3/1RR1BqrQ/N3p1rr/1P2B3/1n2Pn2/bQq1B2Q/b2n4 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 d4 e5 Kd2 f5 Kd3 a5 Kc4 a4 h4 g4 d6 g3 b6 g2 Kb5 f4 d5 f3 b7 a3 e3 f2 d7+ Ke7 h5 a2 h6 Rh7 d6+ Ke6 Be2 f1Q Nd2 Ra3 Nh3 g1R Nf4+ Kf6 Rb1 a1N Nc4 Rh8 h7 Ra4 Rh6 Qe1 Ne6 Rg4 Na5 Qh1 Qg1 Rg3 Qh2 Nc6 Ka6 Nge7 g8B Nd4 Ka7 Nd5 b8Q Qe4 g7+ Qg6 Bf7 Nc3 g8B Nf3 Rc1 Qe7 d8R Nd1 d7 Rag4 Rc5 Ba6 Rc8 Bc4 d8R Rg2 Qb6 Rg1 b4 Ba2 Be8 Qf7 Bc6 Nb3 Rc3 Bd6 Qd4 Ke7 Qd2 Qb1 Be4 Qb2 Rf6 Rg6 Rf8 R1g4 Nd8 Bc5+ Rb6 Bd4 Rc6 Qf6 Be6 R4g5 Rg8 Qc1 Qc2 Ba1 Qb2 Qc2 Rf8 Rhg8 h8Q R8g7 Rg8 Rh7 Bf1 Rh4 Qh6 Rhh5 Be2
K2QQ3/RRp4b/q1pr1nqb/1P1N4/B2Nkr2/1nq2RBN/1N3P2/6Qr b - - 0 1 legal: proof: e4 b5 g4 f5 exf5 h5 gxh5 b4 c4 b3 c5 Nh6 c6 dxc6 axb3 Kf7 b4 Ke8 b5 Ng8 b4 Kd7 h4 Kd6 d4 Kd5 Kd2 a5 Kc3 e5 b6 g5 f6 e4 b7 g4 f7 g3 h6 e3 h7 e2 h5 e1Q+ Nd2 a4 h6 a3 Bb5 g2 Nh3 g1R Ba4 a2 b5 Qee7 Nc4 Qe5 Nb2 Ra7 Bf4 Ke4 Bg3 Qeg5 d5 Ne7 Kb4 Qe3 d6 Rf1 d7 Bg7 f8N Qb6 Ne6 Ra8 Nd4 Qg8 d8Q Nd7 b8R Nf5 Rb7 Nf6 Rh2 Rh1 Qg1 Qe8 Rg2 Rf8 h8N Qa6 h7 Bh6 Ng6 Qf7 Ne7 Qg6 h8Q Bd7 Qe8 Rd8 Nd5+ Be6 Rh2 Rd6 Qd8 Bg8 Rg2 Qa7 Rh2 Qc5+ Ka5 Bh7 Ka6 Qc3 Ka7 Rf7 Ka8 Rf8 Ne6 Nd4 Rg2 Rf7 Qhe8 Nb3 Nd4+ Re6 Be5 Rd6 Rg3 Rf8 Rd1 a1Q Rf3 Nd7 Rdd3 Rf4 Rd1 Qa3 Ra1 Nf6 Ne6 Rg4 Bg3 Rf4 Nd4+ Re6 Ra2 Na5 Bd1 Qa4 Qf7 Rd6 Ra1 Qab3 Ra4 Qa3 Qfd7 Nc4 Bb3 Nd2 Raa7 Qa6 Ba4 Nb3 Q7e8+
3B3R/QKp1bqbb/pN4kB/Rn4R1/3Q4/q1P2P1R/5r1r/Nq1Bn2Q b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Kd2 Kf7 Kd3 d5 Kd4 g5 h4 g3 b4 g4 f3 a6 h5 g2 f6 g3 b6 Bb7 b5 Bc8 h6 Bd7 b7 Be6 h7 Bh3 e6+ Kg6 b6 Ne7 Kc5 d4 f7 d3 c3 d2 Ne2 g1Q+ Nd4 g2 Ra5 Kh6 Na3 Bg7 f8B Nec6 e7 Ra7 e8R Ne5 Nc4 Qf6 Be2 Kg6 Be7 Nbc6 b8R Qf7 b7 Bf5 Bd8 Bd3 Qf1 d1Q Rg8 Qb3 Bh6 Bf5 Qf2 Qgb1 Bd1 g1B Nc2 Nd4 Na1 Nb5 Qd4 Nd3+ Kc6 Qa3 Rh3 Ne1 Nb6 Be3 Rc8 Bg5 b8Q Be7 Qa8 Rb7 Qa7 Nd6 Nd5 Rb2 Nb6 Nb5 Kb7 Rf2 Rb8 Bd3 Ra8 Kf5 Rb8 Bgf6 Rgg3 Bg7 Rg5+ Ke6 Rhh5 Bef6 Be7 Re8 h8Q Ra2 Rh2 Rb2 Rg6 Kf5 Bc1 Re2 Qhh4 Rh8 Bf4 Rh6 Rh8 Rf2 Bd8 Be7 Rg3 Rh5 Bh6 Bc2 Rhg2 Bd3 Qh1 Rh2 Rh3 Bc2 Qe3 Kf6 Rg5 Bh7 Re5 Kg6 Qd4 Bgf6 Reh5 Bg7 Rg5+
q1RKn3/Qrp3Qp/B1r1r3/Q2P1R2/P1NNQBqn/7b/4bbk1/3BN3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 b3 f4 b4 d4 b2 f6 Kg6 f5+ Kf7 g6+ Ke8 g7 Kf7 d6 b3 Kd5 e4 g5 e3 d7 e2 Bf4 e1R Qd3 Qe7 d8Q Qe8 Rh5 Na6 Na3 b1B Nc4 b2 Qe4 Be7 Nf3 Nh6 g8B+ Kf8 g6 Nb8 f7 Kg7 f8N Kf6 g7 Nd7 Kc6 Bd3 Ne6 b1Q a4 Qc2 Rb1 Be2 Rb8 Qd1 d5 Ra7 Bf7 Rf8 g8Q Rb7 Qg1 Rg8 Qb6 Rg6 Qa5 Qh8 Qf8 Bc5 Ned4 Ba7 Qfc5 Qe8 Nb5 Qg8 Qg1 Bf2 Be8 Qd4 Bf7 Qa7 Nbd4 Qa8 Be8 Nf8 Bf7 Ng4 Be8 Be6 Rc8 Rh6 Bf7 Ng6 Rg5 Nh4 Bh5 Bf7 Kd7 Rc1 Nb6 Rc6 Nc4 Qg6 Kd8 Be6 Ne1 Ne5 Nef3 Nf7+ Ke8 Nd6+ Kd8 Ne8 Bg4 Kf7 f6 Bd7 Bh5 Bh3 Bg4 Qh5 Rf5 Kg6 f7 Re6 f8Q Rc6 Ng5 Re6 Bf3 Qg4 Qh8 Kh5 Qg7 Bd3 Bd1 Be2 Qa7 Rhf6 Qg3 Rc6 Qc3 Rfe6 Qca5 Ng2 Bd2 Kh4 Ngf3+ Kg3 Bg5 Bd3 Bfe2 Nh4 Bf4+ Kg2 Ncd2 Bb1 Ba6 Bd3 Nc4 Be2 Ne1+
n7/bP1r2RK/B1Q1q3/1B6/bpqN2nP/1rQ1p1QN/QB1nb1RN/4k3 b - - 0 1 illegal: No proof kernel
1n2Rbq1/1P2N1r1/1Rb4n/1k1Bq1QN/p1pQ3R/1NK4P/1r4Rq/B4nB1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kd7 d4 c5 Kd2 a5 b4 g5 d6 e5 d5 e4 b6 c4 b7 e3+ Kc3 g3 b5 e2 f6 e1N f7 g2 b6 g4 f5 g3 f6 Rh7 Ne2 g1Q Bg2 Qf2 Nd2 Rh6 Bb2 Ra7 Nf4 Rh3 Nh5 Rh4 Nb3 Nf3 Qd4 Bg7 f8B Ra8 f7 Na6 b8R Qe2 b7 Qe5 h3 Rf4 Rhg1 Rh4 Ra4 Nd2 Ba1 Qdg5 Bh1 Bh6 Rg2 Rg4 Be7 Bg7 f8R Nh6 Rf4 Bf8 Bd8 Nf1 Bb6 Qg8 Bc5 Rg6 Rh4 Rg7 Ba7 Kd8 d7 Kc7 d8N Bd7 Nc6 Kd6 Rd8 Nb8 Re8 Kc7 Ne7 Bc6 d6+ Kd7 Re2 g2 Bc5 g1Q Rg2 Qgh2 Bb6 Ke6 d7 Ra6 Ba7 Rb6 d8Q Rb5 Rb4 a4 Bc5 Ra5 Rb6 Rb5 Ra6 Rb6 Nc1 Rb2 Nb3 Qd5 Qa5 Kd7 Ba7 Qdd6 Qg5 Kc7 Qd3 Qdf4 Bg1 Qe5+ Qd4 Qc5 Ra5 Kb6 Ra6+ Kb5 Rf2 Qhe5 Bd5 Qcd6 Rc2 Qh2 Rg2 Qde5 Rb6#
2QN1nq1/1PKb1Rrb/3B1Q2/4NP2/pnRbNB2/N1QBp3/q3rq2/k7 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 d6 c4 d5 h3 g5 h2 f6 a4 g6 c3 d7 c2 b6 Kb3 f5 h4 f7 e6 g7 h3 d6 Ra7 b7 Na6 b8B Nf6 g8N Nh7 Nf6 Nb4 Bd3 Bg7 Nf3 Re8 Na3 Nf8 Bf4 Re7 Qe1 c1Q Rg1 Qc4 Rc1 Ka2 Qc3 h1Q b3 Bh8 Rg7 h2 Ne4 Qf1 Bc7 Qe8 d8Q h1B d7 Qf2 Kd6 e5 Bb8 Bg2 Qc7 Bf1 d8N Bd7 Qc8 Rc7 Nf6 e4 Ne5 e3 Ne4 Be2 Rh7 Bh5 Rg7 Bg6 Rh7 Ne6 f8Q Rg7 Qf6 Rc5 Bc7 Qg8 Bb8 Nf8 Bc7 Nc2 b4 Qb3 b5 Nb4 b6 Qbf7 Qe1 Rc2 b7 Re2 Rc4 Kb2 Qd2+ Ka1 Bb8 Qd5+ Kc7 Qde6 Rc2 Qa2 Rc4 Re7 Rf7 Bh7 Qa6 Re6 Qd6 Rg6 Qf6 Rg7 Qc3+ Qb2 Nf3 Ng6 Qe7 Nf8 Kb6 Rg1 Bbd6 Bd4+ Kc7 Rg2 Ne5 Rg7 Qd2 Qb3 Qf6 Qa2 Qc3+
2B4r/1P4N1/2nBpqQn/bNR2Nqb/Q3N3/Pr1BQpR1/7q/2K2nk1 b - - 0 1 illegal: No possible last move
3R2n1/1P1p1n1r/Kn4q1/QNB1R3/QQ1N1kbp/1Q2q1Pb/Bb6/1B3r1R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Kc4 e5 f4 h5 b4 a4 f6 Kg6 f5+ Kh7 b6 a3 Kb5 d3 c4 d2 f7 h4 g6+ Kh6 f6 Kg5 c5 a2 c6 e4 c7 e3 g7 e2 b7 e1N Ba3 Rh7 Nf3+ Kf4 Bd3 Bc5 f8Q Bg1 f7 Qg5+ Qc5 Ra4 Nc3 Qg6 Bb1 Nc2 Nd4 Nc6 b8Q Ne5 f8Q+ Nf7 Qd8 Bb7 c8R+ Nd6+ Kb6 Bd5 b5 Ne3 Qb4 Be6 Qdc7 Bg4 Rd8 Bh3 Qc2 Ra5 Qca4 d1B Qbb3 Bdg4 Bc5 Ra8 Qbb7 Rc8 Ka6 Nd5 Qca5 Nf7+ b6 Be3 Qbb4 Bc1 Ncb5 Bb2 Re1 Rc6 Re5 Rf6 Qbb3 Rf5 Qb8 Rf6 Qd6 Rf5 b7 Rf6 Qdb6 Rf5 Qbb4 Rf6 Qe6 Nb6 Qeb3 Rf5 Be4 Rf6 Rh1 a1Q Bf5 Qg1 Bb1 Ne7 g8B Qe3 Bf5 Nh6 Bge6 Neg8 Bb1 Rf5 Q3c3 Nf7 Bea2 Kg3 Qcc2 Rf1 Qcb3 Kf4 g3+
3Q4/npq1q3/3N1QrR/1N1R1bpr/1PNKRQ1n/8/Br3P1k/nN1bB3 b - - 0 1 illegal: No proof kernel
b1q5/Rp1kb3/rRP1q1Q1/3BQ1Br/2NqrpNn/2Qn4/R2B1P2/1K3R2 b - - 0 1 illegal: Other
3B1r1Q/P5Kn/rNk2BQ1/1b3q2/Bb1RRp1n/pP1B4/qR4Q1/1N1nr3 b - - 0 1 illegal: No proof kernel
2Q1B2K/p1b1B2b/N2R2B1/6r1/PqknB3/2PN2nq/1pn2R2/1rQRQr2 b - - 0 1 legal: proof: h4 e5 f4 exf4 Nh3 c5 Ng1 g5 hxg5 d5 Rh5 d4 Rh1 d3 cxd3 c4 Nh3 c3 bxc3 Bd6 Ng1 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 b5 a4 h5 g4 f6 g6 f3 d4 f2 g5 h4 d5+ Kd6 d4 h3 g7 h2 g6 b4 Nf3 b3 Ne5 b2 Nd3 Ba6 Kf5 Rh4 e4 Be7 e5+ Kc7 e6 Kd6 Qe1 Qb6 Na3 Bb5 Bg5 Nc6 Rd1 Rh3 Bg2 f1N Nc2 Bd8 e7 Rg3 e8B Qa5 Be4 Re3 Ncb4 Bc7 Na6 Qb4 Rd2 Rd8 Rf2 Rg3 Rg1 h1Q Qc1 Nd2 Rd1 Nf3 Bh4 Ne1 Bg5 Nc2 Bh4 Rd7 Bg5 Ke7 d6+ Kd8 d5 Nge7+ Ke6 f5 Kf6 f4 g8B f3 Kg7 Qh3 Bh7 N6d4 Kh8 Bc4 Bh4 Rg5 g7 Nef5 g8Q Ng3 Bhg6 Rf7 d7 Ke7 d6+ Ke6 d8Q Ba2 d7 Bb1 Rfd2 f2 Qc8 f1R Rf2 Kd6 d8R+ Rd7 Qh7 Ke6 Bef5+ Kd5 Be4+ Kc4 Qe7 Rdd5 Rd6 Rde5 Ba8 Ree1 Bae4 Kb3 Bd5+ Qc4 Qf4 Ree5 Bf5 Nb4 Ne1 Rg4 Rdd2 Bd3 Bb7 Nbc2 Bh7 Be4 Nd3 Qb4 Bg5 Rb1 Rd1 Re6 Bh4 Kc4 Qc1 Bg6 Bbc6 Re1 Qee3 Rg1 Be4 Rf1 Be7 Rg5 Qe1 Bf7 Rh6 Bg8 Bhf5 Bh7 Rd6 Qb3 Bfg6 Qa3 Qb7 Qb4 Qc8
KNn2Q1B/prR5/2n3Nb/BR1P1BQQ/1PB3pq/2q3k1/2r1b3/2R1q1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 d4 g5 h4 c4 b6 f3 h6 f2 h7 f6 b7 c3 h5 c2 h6 Qc7 Nd2 Qb6 Nh3 Qb4 Nc4+ Kc7 d6+ Kd7 Kd5 f5 e4 f4 e5 f3 e6+ Kd8 e7+ Kd7 e8B+ Kd8 d7 Ke7 Nf4 Kf6 d8Q+ Kf5 Na5 Kg4 Nc6 Kg3 Ng6 Qe1 Bc4 f1N Bd2 c1Q Bd7 f2 Qh5 g4 Bf5 Nh2 Ba5 f1Q b4 Qh3 Qdg5 Qcc3 Rc1 Nf3 Rh2 Bd7 Rhc2 Ne7+ Kd6 Ng1 Kc7 Qh4 d5 Rg8 h8Q Nc8 h7 Bh6 Qg7 Re8 h8B Re2 Qf8 Rg2 Nd4 Nc6 b8R Rh2 Rb5 Rf2 Kb7 Re2 Nf3 Rd2 Nfe5 Rb8+ Ka6 Be8 Nd7 Rb7 Nb8 Rf2 Re2 Rg2 Re7 Rc2 Rg7 Rf7 Rh7 Bd7 Kb7 Be8+ Ka8 Rb7 Rc7 Bd7 Be4 Bf5 Bf3 Bd3 Be4 Be2 Bf5
3BK1Q1/pr1NQ1q1/n1k1P3/bbN1RB2/2p4R/2RBB1b1/1n1P1n1Q/4q2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Ke3 f5 Kf4 c5 b4 g3 h4 g6 e4 g2 d6 c4 b6 Qf6 e6+ Kc6 d7 Qg5+ Ke5 Rh6 d8B Bb7 b5+ Kc5 e7 f4+ Ke6 f3 Kf7 f2 e8B Qh5 e5 Be4 b7 Kd5 b6 Qe2 h5 g5 Ra5+ Bc5 Ba3 g4 Nf3 g1B Rh4 g3 Bd7 g2 Ke8 Bh2 Bf5 g1Q Nc3+ Kc6 Qe1 Bc2 Na4 Na6 b8R Qg5 b7 Bb4 Nc5 Ba4 e6 Qe5 B1d3 f1N Qb1 Rh7 h6 Bb5 Qa1 Qeg3 Qg7 Qe1 Qe7 Bg3 Bb2 Rh8 h7 Ne3 Bd4 Nd1 Be3 Nb2 Ra3 Ba5 Rc3 Qg7 Ne5+ Kd5+ Ned7 Kc6 Qf7 Nh6+ Qf8 Rg8 h8Q Ng4 Qh7 Rh8 Qhg8 Rh5 Qe7 Nf2 Rc8+ Kd5 b8Q Rh8 Qf4 Rb8 Rc6 Rb7 Rb6 Ba4 Rb5 Kc6 Nb3 Rh7 Re5 Bb5 Nbc5 Rh6 Rg4 Rh4 Qh6 Rh1 Qh2 Qh8 Rf4 Qg7 Rh4
2Kn2r1/p1RNBq2/P5N1/BRr4p/q1Pb1QBN/1Rn4b/k2bnQ2/2N5 b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 b3 gxh4 c3 c4 bxc4 d5 Ba3 d4 cxd4 Qd6 Bc1 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 b5 a4 h5 g4 e6 f6 h3 a5 h2 g5 b4 g6 b3 f7 b2 d5 Kc5 Ke5 Kb4 f4 Ba6 d4 Nh6 d6 Qd7 f5 Qd8 d5 Qg5 g7 Qd8 g8Q Qe7 f6 Qd7 Bh3 Qc7 Bg4 Qb7 d7 Qc7+ d6 Bg7 d8B Bc8 f8N Qb7 a6 Qc6 d7 Qb6 Bg5 Qc7+ Qd6+ Kb3 Nc3 b1N Ne4 Na3 Nf3 Nb5 Nf2 Nf5 Ra5 Ng3 Qf7 Rg8 Nd3 Nc3 Nh4 Nge2 Rb5+ Ka2 Rhb1 h1Q R1b3 Qd1 Nfg6 Qb7 Qc7 Nc6+ Kd6 e5 Ke6 e4 Qf4 e3 Ba5 Qc2 Qf8 Bh8 f7 Bd4 Be7 Nd8+ Kd6 Qd5+ Kc7 Rb8 Qf2 Rb6 Qh6 Rc6+ Kb8 Qd1 f8N Rc5 Qg5 Qf7 Qgf4 Ne6 d8R Bd7 R3b4 Qa4 Rc8 Nd8 Rc7 Bc8 Bf3 Bh3 Rb3 Be5 Bg4 Bd4 Qe1 Ng3 Qg1 e2 Nd7 e1B Qgf2+ Bd2 Kc8 Nge2 Nc1+
1N3q2/p1r2rBP/P1RbpR2/2q1QR1b/N2R1Kn1/B5n1/k1Q1q3/1r2Q1N1 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 h4 e6 h3 gxh3 Ke7 h4 Kf6 e7 Ke5 h5 Ke4 Nd2+ Kd5 Nb1+ Kc6 e8N d6 e4 Nh6 e5 Nf5 e6 Ne7 Bc4 Ng8 e7 Rh7 Bb3 Rh8 Be6 fxe6 Kd2 Kd5 Ke3+ Kc4 a4 b5 f4 g5 h4 b4 c6 g4 c7 b3 f5 g3 h6 b2 a5 g2 f6 d5 h7 d4+ Kf4 d3 a6 d2 f7 Nc6 h5 Rb8 h6 Bd7 c8Q Kb4 c4 Rb5 c5 Nb8 c6 Rg5 c7 Rc5 Nf6 Bc6 e8Q Ne7 Nd7 Bf3 Rh4 Bh5 Qe1 Kb3 Nc3 b1R Na4 d1Q Ba3 Nbc6 Nb8 Nf5 Qed7 Qe7 Qd6 Ng3 Qde5 Qe2 Ra2 Rg8 h8B Rg7 h7 Qe8 Rg4 Bd6 f8R Rf7+ Bf6 Qd8 Rg5 Rcc1 Rd2 Rc4+ Rd4 Ka2 Rf5 Qe8 Rg8 Qf8 Rg6 Rc3 Bg7 Rc5 Nh3 g1Q Rgf6 Rcc1 Rc4 Qc5 Rd4 Ne7 Ng1 Ng8 Qd7 Rc4 c8R Nh6 Qc7 Ng4 Qc6 Qb6 Qe4 Rcc7 Qd3 Qc5 Qdc3 Rce7 Rc6 Rc7 Qc2+
k1Q1bKQb/pn2P1N1/2rrB2n/2R2Qn1/2QR1B1b/1P1q4/qp1N4/R3B3 b - - 0 1 illegal: No proof kernel
n1N1br2/bB3b2/4Qb2/2b5/B2rN1K1/2Pq1Qp1/1PBp1B1N/R1Q2nRk b - - 0 1 illegal: No proof kernel
4nBnr/3R2b1/Q3B1r1/q3bb2/NN2PR1k/b2K3p/RbPB3p/1Q2Q2R b - - 0 1 illegal: No proof kernel
1bbk1bQ1/5NN1/PbB2bp1/N4QN1/P1Rr1q2/B1p5/R1r3nn/QK4B1 b - - 0 1 illegal: No proof kernel
3Nn1N1/2n2RPq/QpK1Q3/B3Nrr1/R2b2BR/1n2P1pn/1kbBn3/5B2 b - - 0 1 illegal: No proof kernel
bN1N2B1/1RB1K1p1/1r1n1p2/2q1RP2/r2r2r1/P4Q2/BR2N1Qk/b1nNr3 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 Bd6 cxb5 Bf8 b4 axb4 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 Kg4 h4 c5 f4 Kg3 e4 c4 e6 b3 h6 d6 f5 b2 e7 f6 e8B c3 h5 c2 a3 Ra5 h7 Qd7 h6 Na6 e5 Qa7 e6 Qc7 e7 Qd8 Rh2 Qb6 Nc3 b1R Bc4 Rb4 Ba2 Nc5 Qf1 Raa4 Nd1 Rg4 Bf7 Nd3 e8R Bb7+ Ke6 Ne7 Rb1 Qc5 b6 d5 Bg8 Ba8 b7 d4 b8N Nc8 Rb7 Nd6 Bg5 c1R Rhb2 Ra1 Ne2+ Kh2 Kd7 Rb1 Re5 Nc1 Bd2 d3 Ba5 d2 Bc7 Ne4 Kd8 Bd6 Ke8 Qg1 Kd8 Bc5 Ke8 Nd6+ Ke7 Qd4 Bgf7 Rc8 h8N Rd8 h7 Qc3 Bfc4 Bd4 Bg8 Qc5 Nf7 Bc3 Rc2 Rb6 h8Q+ Rh4 Qh7 Ba1 Rb2 Rg4 Qh6 Ra4 Qe3 Rhg4 Ndc3 d1R Qef3 Re1 Nd1 Rf8 Nd8 Rad4 Bge6 Rh8 Bf7 Rhh4 Bg8 Ra4 Re6 Rgd4 Re5 Rhg4 Q1g2+
b1qB4/4p3/r5PN/n4RPK/nnR4R/n1b1p3/1Q1QQr1n/NB2BRk1 b - - 0 1 illegal: No possible last move
B2R1R2/1RKP2N1/NB1rr2Q/1b2r3/1N2PbQN/3qnp1n/5rpB/4k1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 b4 c5 d4 f5 d6 a5 d5 g5 d7 g4 h6 f3 h7 f4 b6 c4 b7 c3 d6 g3 b5 c2 b6 f2 Bg2 f1R Nc3 a4 Nf3+ Kg4 h4 a3 h5 a2 h6 Ra5+ Nd5 Ne7 Be3 c1R Rb1 a1R Nh4 Rf2 Rf1 Na6 b8B Rc6 b7 Nb4 Bb6 Nf5 Qd4 Rg8 h8Q Rg6 h7 Bh6 B8c7 Ne3 b8N Rac5 Na6 Bg5 Be4 g2 Qf6 Kg3 h8R Rb5 Ke6 Nd3 Ndb4 Bb7 Rfd1 f3 Rf8 Bf4 Rb3 Rgg5 Qh6 Rbd5 Rd2 Rg1 Rbb2 Qb8 d8N Rge5+ Kd7 Qa7 Ne6 Qa8 Nac5 Qa3 Ng7 Ba6 Qc4 Bb5 Nca6 Re6 Rb1 Rde5 Kd8 Rcc5 Ba8 Rcd5 Bb8 Qb3 Kc7 Qc2 d7 Qb3 Ra2 Rdd6 Rd8 Rff1 Qe4 Kf2 Qeg6 Qd1 Qg4 Ke1 Rc2 Nf2 Rf8 Nf5 e4 Nh3 Rd8 Ne3 Rc5 Rg5 Rf5 Rf2 Rff8 Rge5 Bd4 Red5 Kc8 Rc6+ Kb7 Be5 Bc5 Bf1 Na2 Bh2 Bg3 Rcd6 Kc7 Rde5 Rb7 Bb5 N2b4 Qb1 Bb6 Qd3 Bf4 Bg3 Ng6 Bh4 Bg3 Bg5 Nh4 Bf4 Bh2
5r1b/NPkQ1Q1B/1N2qR2/K1bb3n/3bRp1P/p2rb2B/3n1B2/1N1BQ3 b - - 0 1 illegal: No possible last move, all moves rejected
Rn6/NP1R1K2/nQbqpQr1/2Pr1N2/3B4/1R2rp2/1rB4N/bk2NrB1 b - - 0 1 illegal: No proof kernel
3k4/qp2n1BN/4R3/1Pb3b1/1rRQ1br1/QB3P1K/QQb1bp1n/N4R1B b - - 0 1 illegal: No proof kernel
1Q1N2qQ/P2B3b/2n1bN1p/1K2Q2b/r2RrB2/k4N2/P1n1p3/bRQ3bR b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 c5 g4 e5 f4 e4 d4 h6 a6 e3 f6 h3 f7 h2 g5 e2 g6 Be6 g7 Nf6 g8Q Bg7 f5 Nc6 Qe8 Ng4 f6 Ne3+ Kb5 c4 Nc3 Nc2 Rb1 Rh7 Qh8 Qg8 Bh3 Re8 f8Q+ Re7 Na4 c3 f7 b6 Nf3 Be5 Rg1 h1B Nc5 Bh2 Re1 Bg1 Qe8 Ra7 f8R Rhe7 Nd7 Bg2 Bf5 Bh3 Bg5 Bg4 Nf6 Bh5 Qd2 Bef7 Qe3 Re4 Bd7 Be6 Qc1 Bh2 Rh1 Bg1 Ng4 Ra8 Rf4 Ra7 Kc4 Ra8 Nf6 b5+ Kb3 b4 Kc4 b3 Kb5 b2 a7 Rd8 Ra1 b1B Rfh4 Rc8 Bf4+ Ne5 Rg4 Rc4 Rgh4 Ra4 Qe7+ Kc7 d6+ Kb7 d5 Nc6 Be5 Ne3 Bf4 c2 Qd2 c1B Qc3 Bc2 Rb1 Ba3 Qe1 Bb4 Qc1 Bc3 Qeg7 Be5 Qg5 Bc3 Qe5 Ba1 Bh2 Ne7 Be8 Red4 d7 Bh7 d8Q Nc2 d6 Nc6 d7 Rf4 Bg3 Rfd4 Re4 Rdc4 Bf4 Rd4 Kc5+ Ka6 Qdb8 Ka5 d8N Rdb4+ Re3 Re4 Bd7 Rad4 Rd3 Ka4 Kb6 Rb4+ Ka6 Rbc4 Rd4 Rb4 Qd1 Ka3 Qf1 Rc4 Kb5 Ra4 Qc1+
3R2Q1/p2B1bb1/R4P2/1nK1R1Qr/B5np/NQN2b1b/b1qr1BP1/1R4k1 b - - 0 1 illegal: No proof kernel
3b1k2/pQ1K1bn1/1B1NP3/rQ1Rr3/BNN1bn2/2bQNRb1/q2P1p1R/8 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 c5 Kf3 f5 h4 g5 e4 c4 b4 c3 h6 c2 h7 Qd6 h5 Ne7 h6 Bd7 b6 Bc6 b5 Qa3+ Nc3 Rg8 h8Q Qb4 h7 Qd6 b7 Qa3 e5 Na6 b8Q+ Nc8 e6 Bd6 b6 Nc7 b7 Qa2 Ba3 c1B Qc2 Kf8 Rh2 Bb2 Bb5 Be8 Qe5 Ne7 h8N Ng6 Nd1 Bc3 Nf7 Rg7 Qc8 Rb8 Bc5 Rh7 Qd7 Rh5 Ne3 Be7 d6 g4+ Kf2 f3 Kg3 Rd8 b8N Bg5 Qd3 f4+ Kf2 Be7 Nc6 Rb8 Ba4 Rb5 Qc8 Ra5 d7 Rg5 d8R g3+ Ke1 g2 Kf2 Rh5 Nb4 Rf5 Rd6 Bd8 Rf1 Rg5 Bb6 Rf5 Ng5 Bf7 Ne4 Ne8 Qb7 Ng7 Qeb5 Rg5 Rd5 Rh5 Nd6 Rf5 Nd1 Rg5 Nb2 Re5 Ne2 g1B+ Ke1 Rh5 Nd4 Bf2+ Kd1 Bg3 Ndc2 Rf5 Ne3 Re5 Kc2 f2 Re1 f1B Ree2 f3 Ref2 Qa1 Kb3 Bh3 Kc4 Nf4 Kc5 Bf5 Kc6 Be4 Nbc4 Qb2 Kd7 Qa2 Rfg2 f2 Rh3 Bh2 Rf3 Bg3 Rh2
3R2Br/p2pPNQQ/2RqnnnQ/3b1bBR/1n1P4/K5N1/n5R1/N1rk4 b - - 0 1 legal: proof: b4 h5 f4 e5 a4 exf4 c4 b5 cxb5 h4 a5 h3 gxh3 Be7 h4 Bc5 h5 Bb6 axb6 Qg5 Bb2 Qe7 Bc1 Qd8 h4 Ke7 d4 Kf6 Kd2 Kf5 Kc3 Kg4 Kb3 g5 e4+ f3 b7 f5 h6 c5 b6 c4+ Ka3 c3 h7 f4 b5 c2 h5 Qe8 e5 Qe6 h6 Ne7 Qd3 f2 Nd2 f3 Nb3 Nbc6 b8R Nb4 Ne2 Bb7 Rd8 Rc8 Rh5 Ng6 Ng3 Qd6 e6 Bd5 b7 Rc6 Bd2 c1N b8Q Nca2 e7 Rc1 Be2 f1N b6 Ne3 b7 Kf4 Rg8 f2 Qf8+ Qf6 b8R f1B Bg4 Bh3 Qg7 Qd6 Be6 Kf3 Rbd8 Bf5 Rb1 g4 Na1 Kf2 Rb3 Kf3 Rc3 Kf2 Rc6 Kf3 Nh1 g3 Bf7 g2 Ng3 g1N Qb1 Ng4 Bg5 N6e5 Be3 Nh3 Ne4 Ke2 Qf8 Nf6 Rg2+ Kd1 Bg8 Bg6 Ng3 Ng5 Qg7 Ne6 Bg5 Bd3 Bf7 Rf8 h8N Bc2 h7 Rg8 Qh6 Rg7 Bg8 Bce4 Nf7 Bd3 h8Q Rh7 Q8g7 Rh8 Qb3+ Bc2 Qe3 Bd3 Qe4 Bc2 Qeg6 Bf5 Qg6h7 Ng6 Rhh2 Nef8 Rh4 Ne6 Rh5
3RN3/4Bq2/6nK/1n1Nrb2/1bbQ1rPp/1PB2rN1/1bQp1R2/kN1Q3B b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 a5 Kf4 h5 g4 d5 c4 h4 b6 a4 f6 Ke6 b7 a3 f7 a2 c5 d3 g6 d4 Kg5 Kd5 f4 Kc4 g7 Qe8 b3+ Kb4 c6 e5 f5 d2 c7 d3 f6 e4 Rh2 e3 Rf2 e2 Bb2 e1R Ne2 Ne7 g8N Ra4 Bg2 Bf5 c8Q Na6 b8N Ng6 Ng3 Re5 Qcc2 Nc7 Nd7 Nb5 Bh1 Bd6 f8B Qf7 Nb6 Be7 Qf1 d1B Qe1+ d2 Nd5+ Ka5 Qe2 Rf4 Bc3+ Bb4 Be7 Rh6 Qed3 Be2 Qd4 Rh7 Qd1 Rg7 Kh6 Bc4 Na3 Rf3 Rc1 a1B Nb1 Bb2 Qc2 Qe6 f7 Qd7 f8Q Rf7 Qc8 Rf6 Qb7 Qe6 Qd1 Qf7 Qc7+ Rb6 Qb7 Be4 Ne3 Be2 Rf1 Rbf6 Rf2 R6f4 Nf6 Bf5 Ne8 Bed3 Qbe4 Be2 Qdd3 Bf1 Bd4 Bd6 Rc3 Kb4 Q3c2 Bc4 Rd3 Bc5 Nc3 Ka3 Nb1+ Ka2 Bc3 Bb4 Rd8 Ka1 Nd5 Nd4 Qe3 Nb5 Qd4
k3KRr1/3BQNbN/6r1/1b3R2/Bn1p3N/rRQP1r2/q1n2pPn/N1B5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 bxc5 exf4 a4 Qa5 axb5 Qd8 Kf2 h5 Kf3 a5 Ke4 d5+ Ke5 Kd7 c4 Kc7 e4 Kb7 b6 f5 g6 d4 g7 f3 c6+ Ka6 b7 Ka7 c7 a4 c5 a3 c6 a2 Qc2 f2 Rh3 h4 Bb5 f1R Na3 f4 Nf3 Ne7 Kf6 Qd5 g8N Rh7 e5 Bg4 c8B Bd7 c7 Ng6 e6 Nc6 b8R Nge5 e7 Rh8 e8Q Nb4 Qc3 Bg7+ Ke7 Ng4 Nc2 Nh2 Nf6 Rg8 Ba4 Bb5 Nh7 Qc4 Rg3 h3 Nh4 f3 Bd7 Rf2 Rb1 a1N d3 Qa2 Rg5 Rf1 Rb3 Rf2 Na3 Nac2 Rf5 Rf1 Rd8 Kb7 c8N Ra7 Qc4 Ka8 Qc3 Ra6 Kf7 Rg6 Qe7 f2 Rf8 Re1 Be8 Re3 Bd7 Rf3 Ke8 Ng4 Bb2 h2 Nd6 h1R Bc1 Nh2 Nf7 Re1 Bh6 Ree6 Bd2 Ra6 Bc1 Ne3 Nc2 Ra7 Na1 Nec2 Rb1 Ra5 Bb3 Ra3 Ba4 Rgg3 Rb2 Rg6 Rb3
N2rR2K/B1N4B/rn1RN3/2n2pR1/q1k2PB1/1nPn3Q/p1b2Qb1/b1N5 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 f5 f4 d5 e4 a5 g4 h5 b6 a4 c6 h3 g5 a3 c7 h2 b7 a2 g6 h4 c3 h3 g7 Ra7 Be2 Ra3 Nf3 Nh6 g8B+ Nf7 Qg1 Qe8 Be3 Ra8 Qf2 Qd7 Rg1 h1N Nbd2 h2 Rad1 Ra6 Nb3 Ng3 Nc1 h1N Bh7 Nf1 Rg5 Ba3 Rd2 Nd8 Bd1 Ke7 e6 Kd6 e7 Bb2 e8R Ba1 e5+ Kc6 e6 Kb5 Ke5 d4 Kf6 d3 Be2 Kc4 Ba7 Qa4 Kg7 Nd7 b8Q Nb6 e7 Bb7 Nd4 Bg2 c8N Nb7 Bg4 Nc5 Ne6 Rf8 Rd1 d2 Qb7 Rh8 Qbf3 Rf8 Qh3 Rh8 Re1 d1B Re2 Bc2 Rd2 Rf8 Rdd8 Nd2 Rd6 Rf6 Kh8 Ndb3 Red8 Rf7 e8N Rb7 N8c7 Rb8 Re8 Ra8 Qe1 Nf2 Qd2 Nfd3 Qf2 Nd4 Ne7 Rd8 Ned5 Ndb3 Na8 Bh1 Ndc7 Bc6 Kg7 Bg2 Kh8
1BB1kNQn/Q1b1Nq2/7r/b1p1rP2/2R5/2nBpr1R/N3RP2/1NK1bb2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 b4 a5 g4 e5 d4 h5 Kd2 c5 g6 a4 b6 e4 g7 a3 d5 h4 b5 a2 b7 h3 g5 h2 b6 Ra4 d6 Ra7 g6 Qe7 Qg4 Qf7 Bd3 Rh6 Ne2 Na6 b8R Nb4 b7 Nd5 Nec3 Nge7 g8B Ra3 g7 Ng6 Ra8 Be7 b8Q Bd8 Ra4 Bc7 Qa7 Nh8 Qg3 Ba6 d7+ Kd8 Re1 h1R Re2 Re1 Kc2 Ke7 d8N Ke8 Bf4 Ba5 Ne6 Bc7 Nd1 c3 Kc1 c2 Nf8 Nc3 Rc4 Ba5 Bb8 Rb3 Kd2 c1B+ Kc2 Be3 Qg2 Bd4 Kc1 Be5 Qg6 Bec7 Qg1 Qf6 Be6 Qf7 g8N Bb5 Bc8 Ba6 Na3 Bb5 Rb1 a1B Ne7 Ba6 Qg8 Bb2+ Kc2 Bc1 Rb2 Bd2 Nb1 Bb5 Re3 Re2 Rg3 Be1+ Kc1 Re3 Rh3 Rf3 Nd2 e3 Rc2 Rb4 Nb1 Ba6 Re2 Rbb6 Nb2 Rbe6 Na4 Bb5 Nb6 Re5 Nbd5 Ba4 Nb4 Bd1 Rd2 Be2 Na2 Bf1 Re2
b6R/N2R1Q2/R2nr1NB/1p3P2/RPb1r2q/n1Q5/pBn3Kb/2Qkb1B1 b - - 0 1 illegal: No proof kernel
2Q1K1b1/n1B1Q2N/B7/1pPb2R1/2nr1R1B/b3knbN/3prq1P/RQ3B2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 Kd5 g5 f4 b5 c4 b3 a4 g4 c6 g3 h6 b2 c7 g2 h7 e4 a5 e3 a6 e2 a7 e1N Nh3 g1B Nd2 b1B Nf3 Ne7+ Kd6 Ba2 Nfg5 Bb7 c8Q Bf2 Rg1 Bg3 Bd2 Bd5 Ba5 Rg8 Qb1 Nf3 Bc7 Nbc6 h8B+ Rg7 Rg2 Na5 Rg1 Rb8 a8B Qe8 Bb7 Qf7 Ba6 Rb6+ Kc5 Rd6 Rg2 Nec6 Nh7+ Ke7 f6+ Ke6 f5+ Ke5 Kb6 Kd4 Rg1 Ke3 c5 Nc4+ Kb7 Na7+ Kb8 Be7 Rg2 Qf8 f7 Bg5 f6 B5f4 Rg1 Rg4 Bg7 Re6 Bh6 d6 Bg5 Bb3 Bh4 Bg5 Ra4 Rd4 Ra1 Bb7 Qe8 Kd2 Ra4 d5 Bd6 Ne3 Kc7 Rde4 Kd7 d4 Kd8 d3 Bg2 B3f4 Bc7 Qd6+ Qd7 Qd4 f8R Bd6 Rg8 Bg3 Qa1 Re7 Rg6 Bg8 f7 Bd5 f8Q Qb2 Rd4 Nc4 Qc8 Ke2 Rd1 Bc1 Rg5 Qd2 Qa2 Ba3 Ra1 Qb2 Qb1 d2 Rd3 Qd4 Qg7 R7e6 Qe7 Qf2 Rd4 Rg4 Ke8 Re3 Rf4 Re5 Rf6 Rd4 Rf4 Ree4 Qb2 Kd3 Bf1+ Re2 Be5 Ke3 Qb1 Bb7 Bb8+ Be4 Be5 Bed5 Bc7+
R2Q1r2/2nn4/r4N1K/P1Q2Q2/1p1q2Pn/1NBbr1pR/2Q2r1b/1B2NRk1 b - - 0 1 illegal: No possible last move
1Nb2RRQ/r2n4/4KB2/p1Pr3b/1qr2BN1/P1B2kp1/2N1nbBR/r5Q1 b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 h5 b4 d5 cxd5 Nd7 bxc5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 b5 Ke4 a5 Ke5 g5 f4 e6 h4 b4 d4 g3 d6 Kc6 f6 g2 h5 g4 f7 b3 d7 b2 h6 Be7 f8B Qb6 d8B Nf6 h7 Nh5 f5 Ra6 f6 Qb4 f7 Nf4 Nf3 g1R Bg7 Ra7 f8R Bh4 Bg2 Ne2 Bf4 Bf2 Na3 b1B Bdf6 Bg6 Nc2 Bh5 a3 g3 Rh2 Rg8 h8Q Rh1 Qc1 Rd1 Rb1 Rd3 Qg1 Nd7+ Ke4 e5 Kf5 e4 Ne5+ Kd5 Ng4 Rc3 Rb3 Rc4 Rf3 Kc6 Ke6 e3 Re8 Rf8 Rd8 Rf7 Rg8 Rf8 B4g5 Rd8 d5+ Kb7 d6 Kc6 Kf5 Kd5 Bf4 Nc1 Bc3 e2 Bgd4 e1R Bf6 Nb6+ d7 Ne2 Bg7 Rd1 Kf6 Ke4 Ke6 Ra1 Bgf6 Rf8 Be7 Rf5 Bef6 Bb7 d8N Nd7 Nc6 Rd5 Nb8 Ba6 Rh4 Bc8 Rh2 Bd4 B4e5 Be3 Be7 Bf2 Rff8+ Kd3 Bh3 Ke4 Bf4 Kf3 Bef6 Rd2 Bf1 Rd5 Bg2+
N3B3/3Q1b2/b1Nq1bpp/2Pb4/2B2B2/knQ1K2R/P2QnN2/rrr1N2R b - - 0 1 illegal: No proof kernel
1nBNNr2/K5n1/1NrbnP2/2NpbR2/2Qkp2q/B2Pb1R1/5BQ1/6Rn b - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 b4 b5 e4 d6 exf5 Ba6 a5 Bc8 a6 Bb7 axb7 Kf7 cxb5 Qd7 b6 Ke8 b5 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 a5 f4 h5 g4 a4 d3 h3 g5+ Kf7 g6+ Kf6 g7 h2 Nh3 e6 Ng5 h4 Qe2 c6 Qg2 a3 Nc3 h3 Nf7 a2 Ne4+ Ke7 f6+ Kd7 f5 d5 Rg1 h1N Ba3 Qe7 Nd8 h2 f7 Nh6 g8N Ng3 Nc5+ Kd6 Nf6 h1N Be2 Ne4 Bg4 Ng5 Bh3 Nd7 b8N Ra6 b7 Rg8 b6 e5+ Kc3 e4 Kb4 Ke5 Ne8 Kd4 f6 Qd6 Raf1 a1B Rf5 Ne6 Bg4 Be7 f8R Qf4 Rf7 Qg3 Rg7 Bd6 Bh3 Qh4 Rg3 Rf8 Bg4 Ne5 Nd7 Bb2 b8Q Ba1 Rff1 Nf5 b7 Nfg7 Nb6 Nd7 Qc8 Bb2 b8B Ba1 Ba7 Nb8 Na4 Rb6+ Ka5 Bb2 Na6 c5 Rf5 c4 N6c5 Rc6 Nb6 c3 Qa6 c2 Qb5 Nd7 Ka6 c1B Bh3 Nb8+ Kb7 Nf2 Qa6 Be3 Qa4+ Kc3 Qc4+ Kd2 Rh5 Bef4 Nba4 Ng5 Na6 Bbe5 Bc8 N5e6 Rf5 Bh6 Bd4 Ke2 Ka7 Bg5 Qh3 Nh1 Nb6 Kd2 Bf2 Be3 Qb5 Kc3 Nc5 Kd4 Qg2 Qf4 Qb3 Qh4 Qc4+
Q3Qr2/2kN4/1RN2p1K/n1Rrb1Bb/1PB3R1/p2bP1n1/1N2N3/Bb2qn2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kh5 h6 b4 f3 d4 f2 g4 a4 e3 a3 b6 c4 b7 c3 g6 c2 g7 Ra4 g5 Qe7 g6 Kc7 Ne2 Qf6 Nd2 Ra5 Bb2 c1N Qa4 Bf5 Qe8 Nc6 b8N Nb3 Rc1 Bb1 Rc5 Bd6 Ba1 Ne7 g8Q Nf5 g7 Be5 Nc4 Nd2 Nb2 Rb5 Nd7 Ng3+ Kg4 Qd6 Rh4 h5+ Kg5 Qf8 Rg4 h4 Qa8 Qd6 Qge8 h3 g8R h2 Rg6 Rf8 Kh6 h1B Qa4 Qe7 d6+ Kb7 d5 Na5 Rf6 Bhe4 Re6 Bg6 Rf6 Bh5 Re6 Nc6 Reg6 Qd8 Qa7+ Kc8 Qa8+ Rb8 Nf6 Ba2 d7+ Kc7 d6+ Kb6 Ng1 Rb7 Bb5 f1B Rd5 Bb1 Bc4 Rc7 Rc5 Na5 Qe4 Qa8 d8B Bfd3 Ne2 Qb7 Be7 Rd7 Qg2 Rd8 d7 Qe4 Qh1 Qf5 Qd5 Qf2 Qh1 Qe1 Qa8 Rc8 d8N Ndf1 Ng1 Rc7 Ne2 Rc6 Nd7+ Kc7 Rb5 Ra6 Bg5 Rd6 Rf6 Rd4 Rfb6 f6 Nc6 Rd5 Rc5
1bk1nqBb/5r2/2B1p3/r1n1n1RN/2RQQPbB/2KRb3/2P1p3/N4BQ1 b - - 0 1 illegal: No proof kernel
N1r5/Kb3R1B/B2Bp3/Q2p2QP/r1N2b1b/4BPR1/n1QR1qk1/4nn1n b - - 0 1 illegal: No possible last move, all moves rejected
6Rb/B3r2n/K2p1QbP/1P1nr2Q/1RN5/B1R1pqbB/QN2k2n/1B4b1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 h4 a5 b4 e5 h6 g5 f6 d6 f7 d3 b6 d2 Kb5 Ke3 c4 a4 b7 a3 c5 g4 h5 a2 f5 e4 c6 g3 h7 g2 c7 Ra3 h6 Rc3 f6 Bg7 f8Q Ne7 f7 Nbc6 b8B Bg4 c8B Rc5+ Ka6 Ne5 b5 Bf5 Rh3+ Nf3 Qg8 Bg6 f8R Re5 Ba3 Nd5 Bd3 Qf6 Ne2 g1B Nec3 Re7 Rh4 Ng5 Bh3 Qf3 Na4 Be5 Nb2 Bg3 Rc8 Kf2 Rc3 e3 Rb4 Re5 Qf7 Rhe8 h8Q Nh7 Ba7 R8e7 Qc2 Ke1 Qhf6 d1N Nd2 Kf2 Rc1 a1B Ndc4+ Ke1 Qb3 Kf2 Bb1 Ke2 Qa2 Nf2 Rd1 Ng4 Rd4 Nh2 Rg4 Bd3 Rg8 Bg6 Qe8 Qf2 Qh4 Bd3 Rcb3 R5e6 Qeh5+ Qf3 Na4+ Bc2 Rd3 Bh8 Rc3 Re5 Nab2 Bg6 Qf6
b2B1Qb1/1BRr1Nr1/P6r/1nq5/2QR1Npp/1BBN2Pr/n5R1/1k2n1K1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 c4 d5 cxd5 g4 Bd3 Bh6 Bf1 Bg5 hxg5 Ra4 Nh3 Ra7 Ng1 Ra8 d4 Kf7 f4 b5 Kf2 h5 a4 c5 d6 e5 g6+ Kf6 d5 c4 a5 h4 d7 c3 a6 c2 g3 b3 g7 b2 d6 e4 Qe1 e3+ Kg2 e2 Rh3 b4 Nf3 b3 Bd2 c1R Nc3 b1B Ra4 b2 Rh2 Qc7 d8N Nc6 d7 Rh6 Rd4 Ba2 Kg1 b1R Rg2 Nb4 Ne5 Qc5 Ndf7 Rd1 d8B+ Ne7 g8B Bb7 Nd3 Ra7 Qf2 e1N Ne2 Bbd5 Bc3 Ba8 Qe3 Be6 Qe4 Na2 Qc6 Rd7 Qd5 Rbb7 Qc4 Kg7 f6+ Kg6 Qb4 Nc8 Qc4 Na7 f5+ Kh5 Ng5 Rbc7 f7 Nb5 f6 Kg6 f8R Kf5 Nef4 Rg7 f7 Rd7 Re8 Bed5 f8Q+ Bf7 Rc2 Rd2 Re7 Rh2 Bg2 Rh3 Qe8 Bfd5 Nf7 Be6 Bb7 Bd5 Qf8 Be6 Rf2 Bd5 Qb3 Be6 Rd5+ Ke4 Qc4+ Ke3 Nfe5 Bf7 Rd4 Bd5 Rg2 Be6 Bh7 Bg8 Nf7+ Re6 Ng5 Rd5 Rc7 Rh6 Nf2 Rdd7 Bd3 Rc6 Nf7 Rh6 Bb2 Kd2 Bc3+ Kc1 Bc2 Na3 Bd1 Nb5 N2d3+ Kb1 Bb3
1Nb5/KQn2Br1/pNBB4/2PRP3/1QRR3k/1r1R2n1/1p1bNr2/2qn1n2 b - - 0 1 illegal: No proof kernel
8/q2N4/p3BbPk/NB4PN/Kn3p1r/1rB1rbn1/b4QR1/bR1NQ2R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 h5 b4 c5 g4 f5 d4 Kf7 Kd2 Kg7 Kc2 h4 Kb3 a6 b6 h3 b5 c4+ Ka4 f3 b7 f4 d6 h2 e5 c3 d7 f2 b6 c2 e6 Qc7 d8R Qe7 d5 Nd7 b8Q Qf7 d6 Qf6 e7 Qb2 e8B Qc3 b7 Rh4 g6 Ngf6 Bf7 Qc5 Be6 Qa7 Qe1 Nd5 Nc3 Be7 Bd2 c1B Rb1 Nb4 Nge2 Bb2 Nd1 Kh6 Bc3 Bf6 Ng3 Ba1 Bb5 f1R Nh5 Rf3 Qc7 Re3 b8N Bb7 Qb6 Bd5 Rc8 Ba2 Rc7 Ne5 d7 Nf7 d8N Ng5 Ndc6 Ne4 Na5 Ng3 Nd7 Rb8 Rc5 Rb7 Rd5 Rb8 Rd2 Rb7 Rg2 Rb8 Rhg1 h1B Qd4 Rb6 Qdd2 Rb7 Qdf2 Rb8 Rh2 Bf3 Rgh1 Rb7 Rg2 Rc7 Bd4 Rcc3 Be5 Rb3 Bd4 Bb2 Bc3 Ba1 g5+
1n2b1N1/1n1nr3/p1QpB1b1/kQ5N/5bQ1/4RPRR/1rb3P1/qQN1K1B1 b - - 0 1 illegal: No proof kernel
1KBNk3/2Q1n2P/3NRnbb/2Q1P2B/pp1b4/1N2bQ2/r4BNn/5qRr b - - 0 1 illegal: No proof kernel
k5B1/Q1q2QrP/N1NP4/R2bp1R1/5bKb/pQ4B1/5B2/rBn1nbRn b - - 0 1 illegal: No proof kernel
5R2/kb2R2p/5nn1/1B1qb3/1KPpr2r/B4NQ1/1NQB1P2/Br1n1QrN b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 d5 b4 Kd7 g4 Kc7 f6 Kb6 f7 e5 g6 a5 g7 d3 Kc3 d2 g5 a4 g6 a3 Nf3 a2 Na3 e4 Nc4+ Kb7 b6 e3 b5 e2 Nb2 Ne7 g8Q e1N g7 Bh3 Kb4 Kc8 b7+ Kc7 b6+ Kc6 c3 Be6 Qc2 d1R Bd2 Nd7 b8B Kb7 Bb5 Nf6 Be5 Ng2 Re1 Rb1 c4 Bc8 Bd4 Ng6+ Re7+ Qd7 B4c3 Ra5 Be5 Ka8 b7+ Ka7 b8N Ne3 Na6 Rg1 Nc5 Nd1 Ne4 Bb7 Ng3 Qe6 Bec3 d4 Nh1 Qd5 Rb1 Ne3 Re1 Nd1 Re4 a1R Rf4 Ra6 Be3 Nh5 Bed2 Ne5 Na4 Ra2 Ba1 Rd6 Rd7 Rb2+ Ka3 Be7 f8B Rb1 Nb2 Rh6+ Kb3 Bh4 Ba3 Bg3 Kb4 Bh2 Qe6 Re8 Rf8 Nf6 g8Q Rh4 Qh3 Re7 Qgg2 Ng6 Qf1 Ree4 Re7 Be5 Qg3
1qQ5/k2B3p/P3Nn2/r2p1bQr/4R2N/B1nn1P2/1bBnNQ2/R3NbK1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 g4 d5 a4 Kd7 c4 Kc6 f6 b5 g6 Kb7 f7 e5 f3 e4 Kf2 b3 g7 b2 c6+ Ka6 g5 b4 a5 b3 g6 Bd6 f8N Qc7 c5+ Ka7 a6 Qd8 c7 Bh3 c8B Be5 c6 Nf6 g8Q Nbd7 g7 Nb6 c7 Nc4 Ne2 e3+ Kg1 Nd2 Na3 b1B Qe1 b2 Ne6 Rb8 Bd7 Bbf5 c8Q b1N Nc2 Nc3 Qf2 Rb5 Ba3 Ra5 Ne1 Qc7 Qgd8 Re8 g8N Qb8 Ne7 Bg2 Rh5 Rg8 Rh6 Rg5 Rh4 Rh5 Re4 Bgh3 Ng6 Bg2 N2d4 e2 Nh4 Bgh3 Qg8 Bg2 Qg5 Bgh3 Nec2 e1N Bd3 Bf1 Ne2+ Bd4 Ne3 Be5 Bc2 Nd3 Neg2+ Bd4 Nc5 Na4 Ne1 Bb2 Rg4 Nc3 Ne6+ Qb6 Rd4 Qb8 Re4+
R6Q/1BBrr1PR/1b1nNK2/PnB2Q1b/2p1pR2/1n1n1Nk1/5R2/r1qQ4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 b5 Kg4 c5 d4 e5 a4 h6 f4 b3 d6 c4 g6+ Kf6 g7 b2 a5 b4 d7 b3 d5 Na6 d6 Rh7 Nf3 Qb6 d8B+ Ne7 g8Q Qd4 d7 Nb4 Nc3 b1N Na4 b2 Ra2 Nc3 Bc7 b1N d8R Qe3 Ba3 Nd2 Nc5 Nb5 Ne6 Nd3 Bc5 Nb3 Rf2 Ra7 Qh8+ Rg7+ Kh5 Qc1 g4 e4 Bh3 Bd7 Ra8 Nc8 Kh4 h5 g5+ Kf7 f6 Kg6 f7 Be8 Bg4 Ncd6 Bh3 Be7 f8R Bd8 Rf7 Rh7 Rhf1 Rb7 Rd7 Re7 f5+ Kf7 f6 Kg6 f7 Ra7 Bb8 Bb6 f8Q Rb7 Bc7 Bf7 Bg2 Kf5 g6 Ra7 Neg5 Kf4 Bh3 Rb7 Be6 Ra7 Bd5 Rb7 g7 Ra7 Rdd8 Rd7 Bb7 Re7 Kh3 h4 Re8 Rd7 Re6 Re7 Rh6 Rd7 Qc8 Bh5 Rh7 Re7 Kh2 h3 Ne6+ Kf5 Kg3 h2 Kh3 Rd7 Kh4 Re7 Ned4+ Kf4 Qe6 h1R+ Qh3 Ke3 Kg5 Rg1+ Kf6 Kf4 Qf5+ Kg3 Ne6 Rh1 Bc8 Rb7 Bd8 Rbc7 Bb7 Rcd7 Bc7 Rg1 Ne1 Rg2 Rf4 Ra2 R1f2 Ra1 Nf3
1b1QbN2/1K2nrPp/1QrBPp2/4NR1B/qrrn4/R7/N4Bkb/1BQ5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 d4 a5 b4 f3 g4 f2 g6 f6 g5 a4 g7 a3 b6 a2 b5 c4 b7 c3 b6 c2 Nc3 Ra7 Be3 c1B Nf3 Bg4 Rh5 Nh6 g8B Bd7 g6 Nf5 g7 Qc8 Bf7 Nh4 Rf5 Bb2 Bh5 Ra3 Qc1 Nc6 b8N Ra7 b7 Ng6 Bg2 Be6 Nd7 Bf7 b8B+ Rc7 Bf1 Qa6 Bg2 Qa4 Bf1 Ke7 d6+ Ke6 Bg2 Be8 Bh1 Kf7 Kd5 Be7 Kc5 Ke6 Kb6 Rf8 Bg2 Rc8 Kb7 Rf7 Bc7 Ra8 Bh1 Ra6 Bb8 f1R Bg1 Rf2 e4 Bf8 e5 Rc2 Bf2 Be7 Bg2 Bd8 Bf1 Nge7 Bd3 Bc7 Be4 Re2 Bb1 Rc2 Nb5 Kd5 e6+ Ke4 d5 Bc3 Nf8 Be5 d7 Bh2 d6 Nd4 Ne5 Bf4 d8Q Bh2 d7 Bd6 Qa5 Rc6 Nd3 R2c4 d8Q Bdf4 Qab6 Rb4 Bg6 Kf3 Bh5+ Kg2 Nc3 Be5 Bd6 Rbc4 Bc5 Bb8 Ne5 Rb4 Bd6 Rbc4 Bd3 Rb4 Rb1 Rbc4 Rb3 a1R Na2 Rb1 Ra3 Rbb4 Bb1
2B4Q/RK2QPBn/2Nqb2B/2b3p1/1N3pbR/4PQr1/3Nn1kn/2Q1r1n1 b - - 0 1 illegal: No possible last move, all moves rejected
4n1RB/r4p2/5Q1b/1K1BQ1PN/1RnP4/1nkNB2b/2qp2Qr/1Rn1r2B b - - 0 1 illegal: No proof kernel
R2Q4/3q1pRP/N3B1nB/4N2n/1Q2Bp1R/r3k1N1/P3rnb1/1bKnb1N1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxa5 Ng8 h4 Ke7 d4 Kd6 Kd2 g5 e4 c5 a6 b5 a7 g4 h6 g3 h7 b4 e5+ Kc7 e6 Kb6 e7 g2 e8N b3 d6 b2 d5 c4 d7 Kc5 h5 Kd4 h6 Qf6 d8R Ba3 d6 Bb7 d7 Qe6 Qe1 Nf6 Nc3 b1B Nc7 Nh5 Bb2 Nc6 Kc1 Ne5 Nce2+ Ke3 Na6 c3 Rh4 c2 Qb4 Re8 h8N Ng6 h7 Qd6 Ng3 Re6 Nh3 g1N Bc4 Bg2 Rb8 Re4 d8Q Qd7 Be6 Re5 Qb7 Bf8 Qb4 Re4 Bg7 Ne2+ Kb2 c1N Bh6 Bd6 Ng1 Nc3 Rc8 Bc7 Rb8 Ba5 Rc8 Rb8 a8B Rb7 Rb8 Ra7 Bc6 Re5 Be4 Ra8 Rc8 Ra7 Ra8 Nd3+ Ka3 Nf2 Kb2 Ncd1+ Kc1 Bc2 Rb1 Bd3 Rb2 Bb1 Rc2 Rd5 Rc5 Rd2 Rg5 Re2 Rgg4 Ne5 Rg7 Ng6 Qa4 Be1 Qb4 Qb5 Nc7 Ra3 Na6 Nf8 Ng6 Qd7 Ne5 Ng6 Qdb8 Qb7 Q8f8 Qd7 Qd8
1b5n/r1B2pp1/4nR2/B2Q1R2/k2PrbqN/BBKb3r/1QQ2b1P/2N1N3 b - - 0 1 illegal: No possible last move, all moves rejected
b1N2BRQ/2q1p2b/b4n2/kn4r1/r1B2N1R/PN1Pb3/BK1p4/1QQNn3 b - - 0 1 illegal: No proof kernel
kr6/1Q2p1R1/2R4P/3BN1bQ/3RP2r/rNq2BKp/2b2nQR/n2r2bN b - - 0 1 illegal: No proof kernel
b1r5/3P4/B1Q1N2b/nnB1BN2/R1B1RrRK/1Pp2kN1/1nQ2bqp/7b b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 g4 Kf6 f4 c5 Kf2 a5 b3 e5 d6 h5 b6 a4 d5 c4 b7 h3 Kg3 c3 g5+ Kf7 f6 Kg6 f7 Kf5 g6 Ke4 f5 a3 g7 h2 f6 a2 d7 Ra4 d6 Nc6 b8R Nb4 Ba6 Ne7 g8B Nec6 Na3 Bh6 f8N Nd3 f7 Bb7 Qc2 Ba8 Ne6 Na5 f8B h4+ Kg4 h3 Nb5 Qc8 d8Q Qb7 Ne2 Qc6 Rd1 h1B d7 h2 Kh4 Kf3+ Bf4 e4 Qb6 e3 Rg1 Nb2 Ng3 e2 Re8 e1B Nd6 Bf2 Nf5 Qb7 Bc5 Qd5 Rac1 a1N Qc6 Re4 Bf7 Rg8 Re7 Rc8 Rce1 Rb4 Re4 Ra4 Be5 Rd4 Rg4 Rf4 Rd1 Qe4 Rd4 Qd5 Qb1 Nc2 Ra4 Nd4 Qc2 Nb5 Re8 Rd4 Re4 Rb4 Rg8 Rc4 Rgg4 Rb4 Re1 Rf4 Ree4 Qd2 Nd8 Qe2 Bc4 Qf1 Ne6 Qg1 Kh5 Qg2 Kh4
QrB3bk/bN1p4/Bnqb2n1/R4Kn1/2B1p1N1/bR1Q4/P2P1N2/1rNR4 b - - 0 1 illegal: No proof kernel
1Q6/1bP1nn2/1br2NB1/2k1RPn1/2qppQ1N/2R1b1r1/1n3N1B/K1Q2RQ1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 b4 g5 h4 e5 f4 Ke7 c4 Kd6 Kc2 a4 Kb2 g4 b6 d3 b5 d2 f6 g3 c5+ Kd5 h6 g2 f7 d6 h7 Bh3 b7 Ra6 c6 Bd7 b6 Kc5 c7 d5 h5 d4 h6 Ra5 Rh3 Ra6 Nf3 g1B Nh4 Be8 Bd3 Bf2 Qg1 Qd5 Nc3 Nc6 b8N Be3 b7 Qc4 Bg6 e4 Nd1 Ne5 Nf2 d1N+ Kb1 Bd6 f8Q a3 f5 Nb2 Nd7+ Kb4 Qf7 Rc6 Nf6 Ne7 b8Q+ Kc5 Qg7 Rg8 h8R Nf7 h7 Bd7 Qh6 Bc8 Qf4 Bb7 Bd2 Rg7 Re8 Rg8 h8Q Rg7 Qhh6 Rg8 Bc3 a2+ Kc2 Rg7 Rf1 a1N+ Kb1 Nc2 Bd2 Ne1 Ka1 Nf3 Bc1 N3g5 Rg3 Bd2 Rd3 Ba5 Rc3 Bb6 Bd2 Be5 Be1 Rg8 Qc1 Bg3 Bd2 Bd6 Bf4 Be5 Bh2 Bf4 Qb1 Be3 Qc1 Ne6 Qf4 Rg7 Bh7 Rg3 Bg6 Neg5 Nd5 Nc8 Re5 Ne7 Nf6+
Q1Bb2nR/kBPn3K/8/1nNrpp2/8/PN4NQ/RBbq4/1bBr1nR1 b - - 0 1 illegal: No possible last move
b2k1R1r/1P2N1b1/N1r1R3/p1q4Q/P1RB2rn/b3BpN1/n2B2Q1/1R3bK1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 f4 Bf8 g4 h5 Bh3 Ba3 fxg5 Bb7 g6 Bc8 g5 Bf8 Bg4 hxg4 Kf1 c5 h4 a5 b4 f5 e4 d5 a4 c4 g7 c3 b6 d4 e6 f4 e7 d3 h5 g3 g6 d2 e5 c2 h6 Bg4 h7 Qd5 b5 Qf7 b7 Bh5 b6 Bg4 Nc3 Ra6 Nge2 g2+ Kg1 Qd5 Ne4 Qa2 Rb1 Ra7 N2g3 Be6 Rh4 Nc6 b8B Qd5 Qh5 d1B Bd2 c1B Nc5 f3 Rc4 Ra6 Ba7 Nh6 g8Q Nf5 g7+ Bf7 Nb7 Kd7 e8R Be2 Re6 Bf1 Nc5+ Kc8 Rg6 Ba3 e6 Nh4 e7 Nb4 Re6 Na2 e8R+ Qd8 Re5 Bd5 R5e6 Ba8 b7+ Kc7 Nb3+ Kd7 Bae3 Qc8 Nc5+ Kc7 Rd8 Rc6 Rde8 Bd6 Rf8 Be5 Na6+ Kd7 Qg6 Qc7 Qg4 Qd6 Qf7+ Qe7 g8N Bg7 Qfh5 Qd6 Ne7 Qc5 Kf2 g1R Qh3 Rg8 h8B Rh1 Qg2 Rh2 Rf7 Kd8 Kg1 Rh3 Ngf5 Rg3 Rff6 Rg4 Ng3 Re8 Rf5 Bh6 Bg7 Rh8 Bgd4 Bg7 Rf8+
1n4qb/Bp5R/B1bR1b1Q/5p2/2nBRK2/rPbBQP2/1rNN4/5Qnk b - - 0 1 illegal: No possible last move, all moves rejected
1r1NQ1r1/P1BK3R/1pnb1rP1/2p5/2q1bn1Q/k5N1/N1B2Br1/1B1nR2Q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 h5 f4 e6 g4 b3 d4+ Kb4 a4 c5 d6 b2 a5 b6 d7 h4 f6 h3 g6 h2 d5 Ne7 Kd6 e5 f5 e4 a6 e3 g7 e2 g8B e1N g5 Ra7 g6 Nd3 f7 Rh4 f6 Ne1 Be3 Rh5 Nc3 b1R Bd3 Rc7 a7 Rb2 Bf2 Rf5 Nge2 Rd2 Bb1 Rb7 Na2+ Ka3 Ng3 Nc2 Ke6 Rf4 d6 Nd5 Qg1 Be7 f8Q Nc6 f7 Nce3 Qh6 Nd1 f8Q Rb8 Qe8 Bb7 Qh4 Rf8 Bf7 Rg8 Qe1 Qc7 d8B Bf8 d7 Qf4 Qf1 Qc4 Bc7 Bd6 d8N Nf4+ Kd7 Rb2 Qfh3 Rc2 Re1 h1R Re7 Rg1 Qh1 Rg2 Be6 Re2 Bef5 Re6 Rh7 Rf6 Bfe4 Nb4 Bf5 Be4 Bc2 Nc6 Rc1 Nc3 Re1 Nd1 Bb1 Bf3 Bfd3 Be4 Bdc2
1rN1q3/p1K1n2B/2b1Br1p/4r1n1/kQQr1B2/3b3N/P4NPR/1Bn2R1R b - - 0 1 illegal: No possible last move, all moves rejected
n1Nb2B1/pQ6/QrNPKnb1/RP2BR1q/2B2r2/1Q2b3/1Rp1r3/k1r3R1 b - - 0 1 illegal: No possible last move, all moves rejected
8/Q2Bqn2/3N1RNr/bn1n3R/P1Q3pK/1Bq2NRn/rR2bpP1/5k1B b - - 0 1 illegal: Other
1Q2BnRn/4B2b/q3BN1q/4R2P/3R1P1Q/5ppk/rn2B1nr/1Nb1NK2 b - - 0 1 illegal: No possible last move
1q2B2K/1b3R2/1N1k4/2BpNb2/Prr1RRpb/2Q3nP/2b1Qn2/1B2qB1N b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 e5 Ke3 Ke7 Ke4 g5 f4 b5 a4 g4 c4 b3 c6 b4 h6 b2 f6+ Ke6 c5 b3 c7 d6 h3 Ba6 c8B+ Nd7 c6 Qb6 h7 Ne7 f7 Qb5 f5+ Kf6 c7 Nb6 Bd7 Nbd5 c8B Ra7 Nc3 Bg7 f8N Ng6 Qe2 Ke7 Be3 Ndf4 Re1 Nh4 Nd1 Rc7 Nf2 Bf6 Nf3 Nd3 Be8 b1B Bc5 b2 Nd7 Bc2 Nb6 b1B Be6 Rc6 Ba2 Bb7 Rg1 Rf8 Nh1 Nf2+ Kd5 e4 h8Q e3 Ne5 Rg8 Rg3 Rg7 Rf3 Rf7 Rf4 Qb3+ Qc4 e2 Kd4 Rc8 Qc3 Bg5 f6+ Ke6 Qh7 d5 Qe4 Rb8 Qg2 Rc7 f7 Bf5 f8R Bbc2 Bb1 Bd8 Rd1 e1Q Rf7 Rc6 Rd2 Bf6 Re2 Rc7 Bb4 Rc5 Ree4 Kd6 Qgf3 Bg5 Qe2 Qb2 Ba5 Rc4+ Ke3 Bd8 Na8 Bc6 Ng6 Qb7 Bb6 Be6 Ba7 Qc8 Bd4 Rbb4 Nb6 Be7 Bc5+ Kc7 R4f6 Nf5+ Kf4 Bb7 Kg5 Qb8 Ne5 Ng3 Kh6 Bec8 Rff4 Bf5 Rf8 Bh4 Kg7 Qd8 Kh8 Qb8 Bd4 Kd6 Rf7 Bfc8 Be3 Bf5 Bc5+
K2RRQ2/2b5/6NB/1BPpBb1n/2q3N1/2rr4/1P1qkpnQ/1QRQrr2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 h4 g5 c4 g4 b6 d3 h6 d2 h5 f6 b7 g3 h7 g2 h6 a4 c5 a3 Nf3 g1R Nh2 a2 Na3 Na6 b8Q Nc7 Ng4 Bd6 Nc4 f5+ Kd4 f4 e4 f3 Qb7 Kf7 e6+ Kg6 e5 Kf5 e7 Kf4 e8R f2 e6 Ra3 e7 Nf6 Nce5 Nh5 Bb5 Ne6+ Kd5 Re1 Ng6+ Kg3 Rb1 a1Q Qa6 Rf8 h8Q Rc3 h7 Bc7 Qa2 Rff3 Rf1 d6 Kc6 Rfd3 Qf8 Bd7+ Kb7 Nef4 h8B Bf5 Be5 d5 Rh1 Kg2 Rh2+ Kf1 Qh6 Qd7 Ka8 Ng2 Rd8 Qd6 e8Q Qf8 Qh7 Qh6 Qf8 Qf4 Rh3 Qd4 Re3 Qc4 Qc2 d1R Qd2 Nhf4 Qh2 Nh5 Re4 Bd6 Qc2 Bc7 Bh6 Rc1 Qaa4 Qa3 Ra1 Qab4 Qb1 Rcd1 Bf6 Rdc1 Ree8 Rcd1 Be5 Ke2 Qba2 Rf1 Rc1 Rde1 Qb1 Rc2 Nh8 Qd2 Ng6 Rcc3 Qd1+
2R1r2B/rR1n2nq/1q1B2b1/QBPpP3/5N2/1RrNpK1B/2Q2b1Q/3rk3 b - - 0 1 illegal: No proof kernel
1N1BK1QB/b2nNr2/Rn4R1/pq4p1/3Bn1q1/P2R2RP/1r4Q1/3Qkb1n b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 dxe5 f5 g4 Na6 gxf5 Nb8 Bh3 Ke7 Bg4 hxg4 Nh3 Kf7 Ng1 Ke8 Kd2 Kf7 Ke3 g5 Ke4 b5 Kd5 g3 c4 d6 f4 b4 e4 b3 e6+ Kf6 h3 a6 c6 g2 c5 b2 c7 Ra7 e5+ Kg7 c6 Kh6 f6 Qd7 f5 Qd8 f7 Qd7 f6 Qd8 e7 Rh7 e8Q Be7 f8B+ Rg7 e6 Bb7 c8Q Qc7 f7 Qd8 Nf3 Kh5 Nc3 b1N Bb2 g1Q Nd4+ Qg4 Rg1 Kh4 Rg3 Nd7 Qa8 Nd2 a3 Rg6 Bg7 a5 f8B Ba6 c7 Ne4 Kc6 d5 c8R Ngf6 Bh8 Bc5 Be7 Nb6 Qg8 Bf1 Qb7 Rh6 Ra8 Qb8 Bd8 Nfd7 Rc1 Rh7 e7 Rf7 e8R Rf2 Ba1 Rb2 Re6 Qe5 Rg6 Qb8 Ndb5 d4 Nc7 d3 N3d5 d2 Ne7 Bd4 Rd3 Be3 Rc5 Kg3 Na6 Kf2 Rcc3 Qe5 Nb8 Qb5+ Kc7 Bd4 Rg3 Bc5 Rcd3 Bd4 Qc1 d1N Qc2+ Ke1 Qg2 Ra6 Qbd5 Ndf2 Qb3 Nh1 Ra7 Nd5+ Kc8 Rf6 Ra6 Ba7 Qbc2 Rb4 Bd4 Rb2 Qb3 N5b6+ Kc7 Nd2 Qa4 Rf5 Kd6 Ne4+ Ke6 Rd5+ Kf7 Rf5+ Ke8 Rf7 Qd1+
3Q2Br/qq2B1qn/1Q1NpB2/3qr3/k1Q5/1np1PP1N/K4RB1/1Nb1Rb2 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 cxd5 fxg4 h4 Bg7 hxg5 Bf8 d4 Kd7 Kd2 c5 Kc3 a5 Kb3 h5 e3 c4+ Ka2 c3 b4 a4 g6 a3 b6 g3 f3 e6 g7 h4 d6 Kc6 d7 g2 b7 h3 d5+ Kb6 b5 Ka5 d6 h2 b6 Nf6 g8B Nc6 b8Q Ba6 b7 Nh7 Qd3 Nd4 Qc4 Nb3 Nh3 g1Q Bg2 Qg5 d8N Qd5 d7 Bc5 Qe2 Ka4 Nf7 Bb5 d8B Ra5 Qd3 Bb4 Qe4 Bf1 Bf6 Rb5 Qd6 Rc5 b8Q Qb7 Qbd8 Re5 Nf2 Qd5 Q6b6 Qb7 Bh3 Qg7 Qc4 Qd5 Rg1 h1Q Bg2 Qhh6 Nd6 Qgb7 Nh3 Qhg7 Nd2 Bd3 Re1 Bf1 Qe2 Bc5 Rb1 Bb4 Rb2 Bc5 Qc4+ Bb4 Kb1 a2+ Kc2 a1Q Nc8 Qa3 Kb1 Qh6 Ne4 Qhg7 Rf2 Qc5 Nd2 Qcd5 Qe2 Bf8 Qd3 Qae7 Ka2 Qb8 Nb1 Qeb7 Ba3 Q8a7 Qc4+ Bb4 Qd3 Ba5 Bf8 Bb4 B8e7 Ba3 Nd6 Bc1 Qc4+
q3Nr1N/q1qQ4/3np3/k2B1qbQ/p1NBbBr1/1P2NP1K/5Rn1/1R1Q4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 g4 h5 b6 a5 f6 c5 g5 e6 b3 c4 f3 c3 Kf2 h3 Kg3 c2 b7 Kc7 f7 Kb6 d6 h2 g6 h4+ Kh3 a4 d5 Rh7 g7 Ra6 d7 Nh6 g8N Ra8 d6 Ng4 Nd2 Ka5 Bc4 Bh6 f8N Rg7 Bd5 Nc6 b8B Bb7 Ba7 Bg5 Nf6 Ne3 Bd4 Ng2 Ra2 Ne5 Ng6 Nf7 Nh8 Qb6 Ne2 Qa7 Rg1 Rf8 Nc3 Ba8 Ne8 h1Q+ Kg4 h3 d8Q+ Qc7 d7 h2 Kh3 Nd6 Qf6 Qa7 Qg6 Rgg8 Qh5 Bc6 Bc4 Be4 Bd5 Qa8 Rf1 Qg1 Rf2 Rg6 Ra1 Rgg8 Rb1 h1Q+ Kg3 Qhh2+ Kg4 Qf4+ Kh3 Qf7 d8Q+ Qc7 Qd7 Qca7 Bb2 c1Q Ba3 Qc2 Bc1 Qc7 Nc4+ Ka6 Ne3 Ka5 Nb5 Q2c5 Na3 Q5a7 Nec2 Qf1 Bf4 Qd3 Ne3 Qb5 Bc4 Qe5 Bd5 Qf5+ Kg3 Bd8+ Kh2 Rg4 Kh3 Bg5 Nac4+
1Q1R1n2/3BNk1Q/QqbP2R1/1pn3Bb/1R2R3/3p4/1N2rqrP/1K2bB1b b - - 0 1 illegal: No proof kernel
1krR2Qn/N6b/q2p1K1B/1QnRP3/n4PrR/2N1qBQ1/4p2n/R1b4B b - - 0 1 illegal: No proof kernel
2R1q3/2qN2bb/BPnRPn2/5kp1/2pq2q1/1B6/NQNrN3/1rQ1B1QK b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Ke7 Kg2 g5 h4 c5 e4 f5 d4 a5 b4 g3 b6 f4 b5 a4 h5 a3 d6+ Ke6 d5+ Kf7 b7 a2 e6+ Kf6 e5+ Kf5 b6 Ra7 h6 Ke4 h7 Qe8 d7 Ra6 d8N Qa4 e7 Qb4 e8B Bh6 d6 Bg7 e6 Qc3 d7 Qe5 Ne2 Ra8 Bd2 Qc7 Nbc3+ Kf5 Be1 Nf6 Rc1 a1Q Nc6 Ra2 d8Q Rd2 Nb4 Nc6 b8N Bb7 Nca2 Qd4 Nc2 Ba8 Rg1 f3+ Kh1 f2 Nd7 Rf8 h8Q Qg4 Bg2 f1Q Bd5 Qff4 Qe7 Qa4 Bb3 Bb7 Qf7 Ba6 Qfh5 Bd3 Qh2 Qa8 Bh5 Qe8 Rg2 Rf7 Qg1 Qd4 Bf3 Qg4 Bfd5 Qd4 Bdc4 Rf8 Ba6 c4 Qhh2 Rh8 Ra1 Rh4 Qc1 Rf4 Qe3 Rf1+ Qhg1 Be4 Qb2 Bd3 Bf2 Rb1 Be1 Kg4 Rh2 Bh7 Qec3 Kf5 Qc1 Bg6 Rh8 Bh7 Q3b2 Qf7 Rc8 Qe8 Nab4 Qg4 Ra3 Qd4 Na2 Qg4 Ne5 Qd4 Ra5 Qg4 Rd5 g2+ Kh2 Qd4 Rd6 Qg4 Nd7 Qd4 Qe3 g1Q+ Kh3 Qgg4+ Kh2 Bg6 Qg1 Bh7 Kh1
1BB2Q2/1rN2q2/qP1P2Q1/bn1Q1np1/5q1R/R2r1b1N/qkR2Rp1/1N4K1 b - - 0 1 illegal: No possible last move, all moves rejected
rRq3B1/bq3N2/Rp2R1K1/R2np2n/6PQ/kPQN2B1/Nrbr1B2/7r b - - 0 1 illegal: No possible last move, all moves rejected
1rQQNN2/2n2bq1/pb5p/1Qqrr1B1/1P1B2n1/NR3B1K/1P1krNR1/8 b - - 0 1 legal: proof: h4 d5 e4 b5 c4 g5 cxd5 gxh4 a3 f5 exf5 b4 axb4 Ba6 Qe2 Bb7 Qd1 Bc8 d4 Kd7 g4 Kd6 f4 c5 Kf2 e5 Kg2 h6 g5 e4 f6 a6 f7 e3 f5 e2 f6 e1R g6 c4 g7 c3 Qh5 c2 Be2 Nd7 Nh3 Nb6 Na3 Rb8 Nf2 Qd7 Rh3 Na8 Rb3 Nc7 Bg5 c1Q Bf3 h3+ Kg3 Be7 f8N h2 f7 Nf6 g8N Ng4 Kh3 Re5 Nf6 Qc5 Rg1 Bd8 Rg2 Qe7 Be3 Be6 Qf5 Qd7 Qd3 Rg8 Qb5 Rgg5 Ne8+ Ke7 Ng7 Kf6 Ne8+ Kf5 d6 Qe7 d7 h1R+ Rh2 Ra1 d5 Re1 d6 Re2 Bd4 Kf4 Rg2 Qf6 Qa4 Qg7 Qb5 Bf6 d8B Rd5 d7 Rge5 Bc3 Ke3 Bd4+ Kd2 Be7 Bg5 d8Q Be3 Bg5 Qc6 Nd7 Qc5 f8Q Bg8 Qf5 Bf7 Nf8 Qc3 Bc5 Qd4 Qfc8 Qc3 Bh4 Bd4 Bg5+ Qe3 Bce7 Ba7 Bc5 Bb6 Bh4 Qc3 Bd4 Qc5 Bg5+
6KR/nkN3QP/N2Q3r/QBb5/2N1p3/2p1PB2/qNRBr1nn/4b1qn b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 Ne7 f5 Be6 fxe6 Ng8 Kf2 a5 Kg3 c5 d4 g5 b4 f5 h4 e4 b6 a4 e3 c4 h5 c3 b7 a3 e7 Kd7 e8B+ Kc7 d6+ Kb6 d7 a2 b5 Ba3 h6 Bb2 d5 Ra4 d6 Nf6 Na3 Ra7 Be2 Nc6 b8N Kb7 Nh3 Qa5 Nc4 Ba3 d8Q Bc5 d7 Qa3 Rb1 a1N b6 Nc2 Qg1 Qa2 Rb2 Ne1 Rc2 Ng2 Bd2 Ra4 Bd1 Na7 Bf3 Ra6 Nf2 f4+ Kh2 g3+ Kh3 Ng4 Nd1 Ra3 Ndb2 Nh2 Na6 Ra5 Nc7 Ra4 Be2 f3 Qe7 f2 d8Q f1N Qed6 Ra6 Bb5 Rf8 Bd1 Rf2 Bh5 Re2 Bf3 Ne1 Qg2 g4+ Kh4 Qb3 Kh5 Qa2 Qh3 g2 Kg6 g1Q Kf7 g3 Qhd7 g2 Kg8 Ng3 Qg7 Nhf1 Rh3 Nh2 Qdg5 Nh1 Qf5 Qf2 Qfg5 g1B Q5e5 Ng2 Qh5 Kb8 b7 Qf1 Qhg5 Bf2 Rh4 Be1 Qgd8+ Nc8 Rh5 Ka7 b8N Kb7 Qdg5 Rb6 Nba6 Qg1 Q5e5 Bd4 Qec5 Na7 Qa3 Bc5 Qa5 Qf2 h7 Qg1 Rf5 Rc6 Rf8 Rb6 Kf7 Rc6 Rh8 Rb6 Kg8 Rc6 Qdd4 Rh6 Qd6
Q4q2/KbBq3p/1Q2R3/3N1P2/p1PNRB2/2n1Q2r/B1r1Q2r/n2rNkb1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 e5 Kc4 a5 f4 a4 g4 e4 b4 d6 f6 Kg6 f7 d3 f5+ Kg7 b6 d2 Kb5 e3 g6 Kf6 g7 Ke5 b7 Kd4 g5 e2 g6 Ke3 Nf3 Kf2 Ne1 d5 Rh6 d4 Nc3 d3 Nd5 Qg5 Kb6 Na6 b8B Nc5 b5 Qe7 Bc7 Nf6 g8Q Nfe4 g7 Bb7 Re6 Rb8 Ka7 Nc3 b6 Nb3 Rb1 Na1 Rb4 Qd7 Rbe4 Bc5 f8N Rc8 Qf7 Rg8 Qe8 Be3 Bg2 Qd8 Bf3 Kf1 Bh5 Qd7 Bf7 Bg1 Qe7 Qd8 Qc5 Qd7 Qe3 Qe7 Ba3 Qd7 Bad6 Qe7 Bf4 Qd7 Qc1 d1R Qb2 d2 Qb5 Rc1 Qb2 d1R Qa2 Rh8 g8Q Rd3 Qb2 Rcd1 Qg4 Rg8 Qh5 Ba6 b7 Rg2 b8Q Bb7 Qbb6 Rf2 Qa8 Rh2 Nf3 e1Q Bg8 Qd2 Ne1 Qg2 Bf7 Qg8 Qhf3+ Bf2 Qfe2+ Kg1 Rh6 Qd8 Ne6 Qd7 Qec5 Na2 Ne3 Rg2 Bce5 Qf8 c3 Rc6 Bc7 Rh2 Qa3 Rc5 Nd4 Rc6 Bc4 Rc5 Nd5 Rdh3 Rhe6 Be3 Qh5 Rc6 Bb3 Kf1 Qc1 Bg1 Qe3 Rc4 Qg4 Rb4 c4 Nc3 Ba2 Rbb2 Qh5 Rbc2 Qhe2+
Q3q3/3R2Pb/1R2Bkrq/N1N2B1Q/Pq1b4/1B1p1N2/Rp2nrnK/4Bq2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 a4 Kf7 c4 d5 f4 e5 Kf2 h5 Kg3 b5 c6 d4 c5 e4 c7 b3 c6 h4+ Kh2 b2 g4 d3 f6 b4 g6+ Ke6 g5 h3 f5+ Ke5 f7 b3 f6 e3 g7 e2 g6 e1Q Na3 b1Q Qh5+ Ke6 Nc4 b2 Ra2 Bb7 c8R Bc5 f8Q Ra6 f7 Ne7 g8B Nd5 c7 Qe8 g7 Bd4 Rd8 Kf6 c8B Qb4 Na5 Ne3 Nf3 Ng2 Bf5 Be4 Bd2 Nc6 Rd7 Rh7 Be2 Qf1 Bd1 Rh6 Bc2 Rg6 Be1 Rb6 Bb3 Rb5 Bfe6 Rf5 Bh7 Rf4 Qg8 Bf5 f8N Be4 Ne5 Rf2 Nf3 Bf5 Qh8 Be4 Bg4 Bf5 Ne6 Be4 Nc5 Bf5 Kg3 h2 Bhg8 Be4 Bge6 Bf5 Rg1 h1Q Qg8 Qe7 Qa8 Qe8 Qh8 Qh6 Rh1 Qg5 Qh5 Qh6 Kh2 Na7 Ra1 Nb5 Ra2 Nc3 Bh3 Rg4 Rg1 Bh7 Rh1 Rg6 Bhg4 Rd2 Bgf5 Ne2 Rg1 Nh4 Rg4 Ng2 Re4 Rc2 Re5 Rd2 Red5 Rc2 R5d6 Ng1 Nc4 Rf2 Na5 Ne2 Rb6
R1Q4K/5BP1/1qN1q3/6Np/r5NB/bn1k1B2/RP1pqQnr/1bR1q2B b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 a5 Ke4 d5+ Ke5 h5 f4 d3 c4 a4 g4 a3 b6 d4 g6+ Kg7 g5 a2 c5 e6 b7 d2 c6 d3 c7 Qe7 Qe2 d1Q Nd2 Rh7 f6+ Kh8 f5 Qd7 f7 Kg7 Ngf3 Ra4 Ne4 Ne7 Nf2 Rh6 Ng4 Na6 b8N Nc5 Bg2 Nd5 Qf2 Nb3 Nc6 Ba3 f8R Ne3 Bd2 Ba6 c8B Qe2 Be1 d2 Bb7 Bd3 Ra8 Bb1 Rf1 Rh8 Bh1 Rg8 Rg1 Qd8 Rf1 Qb6 f6+ Kh8 g7+ Kh7 f7 Ng2+ Kf6 e5 f8Q e4 Qe8 e3 Qc8 Re8 Kf7 Re7+ Kf8 Kg6 Kg8 Re6 Kh8 Kf5 g8B Ke4 g6 Kd3 g7 Ree4 Nh6 Rh4 Ng4 Rh2 Rg1 Bc2 Rc1 a1Q Bf7 Qa2 Ra1 Bb1 Ng5 Nc1 Rf1 Qe6 Ra2 Nb3 Nd8 Qd1 Bf3 e2 Nc6 Ra5 Qc5 Ra4 Bh4 e1Q Qf2 Qde2 Rg1 Q2e4 Rf1 Q1e2 Rc1 Qe1 Nd4 Q4e2 Nc6
1RQ3qb/6Pp/1bKBbkqr/N1R2bP1/5r1N/B2Bn2p/3Q2Rn/N5N1 b - - 0 1 illegal: No possible last move, all moves rejected
rRB2Qb1/n1R1KPp1/P2Q2qq/kRb2r1R/4Bp2/b6N/Q1b3n1/3NB3 b - - 0 1 illegal: No proof kernel
6nb/1q3p1Q/1RnR1r1R/Nq6/1Q1BrQ2/3bpP2/n1nNk1P1/NK1N1B2 b - - 0 1 illegal: No possible last move
2b1q3/r2PnQ2/1N1K2R1/1rR4P/n1R4p/BqNN4/BB1pqqQ1/B1b1k3 b - - 0 1 illegal: No proof kernel
Bq2qr1Q/3P1kRP/1r5b/1R1n4/3N1qQn/1RB3qp/K1N1QRbp/7B b - - 0 1 illegal: No proof kernel
N1bB1bKN/1R1p1R2/1Q1r1PQ1/pB5r/6Qq/1n3n2/bPQ5/NBb2kq1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 h4 e5 c4 d3 f4 a6 c5 g4 h6 d2 c6 g3 h7 g2 c7 Ba3 h5 Bb4 h6 Qe7 b6 Qc5 b7 Ra7 Nc3 Qd6 Na4 Qc5 Nb6 Ne7 Qc2 d1B Na8 Be2 Nf3 g1B Nd2 Rd8 h8Q+ Kf7 h7 Be3 f6 Ke6 f5+ Kd6 f7 Nec6 Qe8 Nd4 h8N Nbc6 b8Q Na5 Nb3 Bc4 Rh7 Nf3 Bd3 Bed2 f6 Qg1 Kf5 Kd5 f8Q e4 Qg6 e3 Rf7 e2 Qfg7 e1Q Qb6 Qh4 Ra3 Rf8 Na1 Ba2 Rb3 Bc5 Rb5 Kd4 Qg4+ Ke3 Kg6 Kf2 Qg8 Qhg3 Kh7 Nb3 Q8g6 a5 Bf5 Re8 Be4 Re7 Kg8 Kf1 Bf5 Bg5 Bf4 Qh4 Bd6 Re4 Be7 Ra6 Bd8 Re5 Be4 Bc1 Rb4 Bb7 c8B Rh5 Bf5 Bf8 Be4 Bd5 Bb7 Bc4 Bbc6 Bd5 Ba4 Bb7 Bb5+ Ke1 Qbc7 Rd6 Qb6 Bc8 Qcc6 Bg5 Bb1 Be3 Qcc2 Bc1 Rc4 Kf1 Rc7+ Ke1 Bc6 Kf1 Rb7 Qh3 Ba4 Qh4 Bb5+
NqrN4/2p1RB2/bP2BR1r/1PB2K2/2BN1RQ1/bn6/Qp3n2/k1bq3b b - - 0 1 illegal: No possible last move
rr1R4/kPn2pq1/2b5/b1N5/1N2n2n/1NRQPpq1/2QNR1Q1/nBB3K1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 h4 g5 d4 c5 b4 Kc7 h6 Kb6 h7 a5 e3 a4 d6 g4 d5 f3 d7 c4 h5 c3 d6 a3 h6 c2 Ne2 a2 Rh2 g3+ Kg1 g2 Nd2 Qg5 d8N Nd7 Nc6 Qg3 Ned4 Nb8 d7 Bg7 d8Q+ Qc7 N4b3 Be6 Bd3 Kb7 b6 Bb2 b5 Na6 Nb4 Nf6 Bf5 Bc4 Qd3 Rhb8 h8R Bc3 h7 Qg3 Rd8 Bd5 h8Q Nc7 Qh3 Bc6 Rb1 a1N Rb2 Ra4 Q1e2 Ka8 b7+ Ka7 Ra2 Ne4 Ra3 Nd6 Be4 Nf5 Qf2 Nh4 Bg6 Ra8 b8N Ra6 Nd7 Rb8 Ndc5 Ra4 Bb2 c1N Qfe2 Na2 Bc1 Ra6 Qc2 Ra5 Qed3 Ra4 Nc4 Be1 Ncd2 Nc3 Qg4 Ne4 b6+ Ka8 b7+ Ka7 Nc4 Bc3 Ncd2 Ra6 Nd5 Ba5 Nb4 Nc3 Qg5 Ne4 Qa2 Qf4 Qdd5 Na8 Nd4 Nc3 Bb1 Kb6 Kf2 Nc7 Qc2 Raa8 Qde4 Qe5 Qed3 Ka7 Qg4 Qg7 Qg3 N3b5 Rc3 Nd6 N4b3 Ne4+ Ke1 Qh8 Qf2 g1Q+ Qff1 Nf5 Re2 Qg3+ Qf2 Qh6 Kf1 Qhg7 Qg2 Nh4 Kg1
R2Q3K/1p4nB/1Q3NPk/p1BB4/rr4b1/qPRQ3N/1N1Nn1b1/1b2qb2 b - - 0 1 illegal: No proof kernel
1R4rq/1p2N1bp/1QQ1n3/1B1Q1KNb/q1Pq4/q1Q1R2P/1kB4N/3r1nB1 b - - 0 1 legal: proof: e4 a5 d4 d5 exd5 c5 dxc5 g5 b4 axb4 f4 Nf6 fxg5 Ng8 Kf2 Kd7 Ke3 e5 Ke4 b3 a4 b2 g4 f6 h3 Qa5 g6 Qe1+ Kf5 e4 g7 e3 a5 e2 g5 Ra6 g6 Qb4 d6 Kc6+ d7 Kb5 c6 Kc4 c7 Qa3 Be3 Nc6 Nf3 Nd8 Ng5 Ne6 d8Q Rd6 Nd2+ Kc3 a6 b1Q a7 e1Q a8Q Qba2 Ndf3 Qf2 Qd5 Kb2 Bb5 Q2b3 c4 Qba4 Qc6 Rd1 Re1 Qd2 Qaa6 Qd4 Qdd5 Bd7 c8B Be8 Bg1 Bf7 Re4 Ne7+ Kg4 Rg8 Qab6 Nf5 Nh2 Ng3 Bd7 Nd8 Bf5 Ne6 Qe5 Nf1 Qed5 Rh8 g8N Bg7 Ne7 Rg8 Qe5 Nf4 Re3 Ne6+ Kh5 Be8 Bc2 f5 Qg3 f4 Kg4 f3+ Kf5 f2 Qgf3 Be5 g7 Bh5 Qfd5 Rh8 g8Q Bg7 Qgc8 Rg8 Qa8 Nd2 Qaa5 f1Q+ Nhf3 Qe1 Nh2 Nf1 Qd2 Bh6 Qd3 Qec3 Qd2 Qh8 Qe1 Qcd4 Ra2+ Kc1 Qc3 Bg7 Qdd8 Qa5 Qb8 Qb2 Q8d8 Qbb4 Ra4 Qa3 Qdd5 Q5b4 Ra8 Qba4 Qe1 Kb2 Rb8 Qa8 Qd2 Q8a4 Qc3+
2B1b2K/ppB1P3/2n3R1/1QRn1r2/2q2qq1/1RNBkB2/NP1rb2Q/N1q5 b - - 0 1 illegal: No proof kernel
bqr1NkQ1/Qpb1qq2/B2P3B/6rR/2B3R1/p2K1n2/P1N2R2/r1b3QQ b - - 0 1 illegal: Other
1q3N2/1kbR1R2/1b2QpNr/nR3B1Q/p1P2Pn1/2BK4/Q1n2qq1/1b2N2R b - - 0 1 legal: proof: e4 c5 g4 d5 d4 h5 gxh5 b5 a3 a5 a4 Ra7 axb5 Rd7 Nc3 cxd4 Nb1 d3 Bh3 d4 Bf1 Rd5 exd5 Rh6 Nh3 Rh7 Ng1 Rh8 Kd2 Kd7 b4 Kc7 h4 g5 c4 e5 f4 f6 b6+ Kb7 d6 e4 b5 g4 h6 g3 h7 g2 d7 Na6 h5 Ba3 h6 Bb4+ Nc3 Qe8 d8R Qg6 Qe2 Be7 Na4 Bd6 Nf3 g1B Bh3 Ne7 Rd7+ Bc7 Bb2 Nc6 Bf5 Qg2 Ne1 Nab4 Bc3 Nc2 Rf7 Bf2 Rd1 Bd7 Qg4 Be6 Qg8 Bd7 Qe8 Bc8 Qe6 e3+ Kc1 e2 Kd2 Kb8 Nc5 a4 b7 Na5 Nd7+ Ka7 b8N Kb7 b6 Bg1 Nf8 Bf2 Kc1 d2+ Kb2 d3 Ng6 Bd4 Nd7 Be3 Ndf8 Bd4 Rc1 d1Q Ra1 Qd2 Rd1 Qe3 Kb1 d2 Kb2 Qe5 Kb1 Kb8 b7 Bdb6 Kb2 Ka7 b8R Bd7 Rb7+ Ka6 Rb1 d1N+ Kc1 Be8 Kd2 Nf2 Rb5 Ng4 Kd3 Bc6 Qc8 Qe8 Qe6 Qb8 Rd7 Rg8 h8Q Be4+ Kd2 Rg7 h7 Rf7 Qg8 Re7 h8Q Rh7 Qgg7 Rh6 Qhh7 Nce3 Qge7 Bb1 Qa3 Nc2 Qb3 Nc6 Kd3 Na5 Nf3 e1Q Qa2 Qh4 Ne1 Qhf2 Rf7 Be5 Rbe7 Bc7 Rd7 Kb7 Qh8 Rh2 Qh5 Rh4 Qg5 Rh6 Qh5
2n3K1/q6N/2nbPpQ1/qR2N2Q/b2p4/3BRB1k/1b1P1Bq1/1NrRB1n1 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 h4 g5 hxg5 Ke7 a4 Ke8 b6 Ke7 b5 Ra6 b7 Rf6 b6 Ke8 Nh3 Rf5 Ng1 Rb5 axb5 a4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 g4 h5 g6 f3 g7 h4 g5 d6 g6 f6 Nh3 a3 Bb2 c4 Ng5+ Kd7 Kf5 h3 e4 a2 e5 f2 Qh5 c3 Nh7 h2 Bd3 c2 Bd4 f1Q+ Bf2 Qg2 Re1 h1Q Re3 Nc6 b8B c1N b7 d5 b6 d4 Bc7 Qhf1 b8R Ne2 b7 Ng1 Bd6 Qd1 Bc7 Qa4 e6+ Ke7 Bcg3 Bd7 Be1 Be8 Bgf2 Kd6 Be4 Qe7 Bf3 Qb4 Rd8+ Qd7 b8N Qa3 Rc8 Qda7 Nd7 Q3a5+ Ne5 Bd7 Rb8 Nge7+ Kf4 Nc8 Kf5 Be8 g8B Bd7 g7 Be8 Nc3 Be7 Rc1 a1B Rd1 Bb2 Bf7 Rf8 Bg6 Rf7 g8Q Bf8 Nb1 Rc7 Be2 Kd5 Bd3 Bd6 Bf7 Bd7 Qg3 Be8 Kg6 Bd7 Kg7 Be8 Bc2 Bd7 Kg8 Be8 Rd3 Ke4 Rb5 Bd7 Qg7 Kf4 Re3 Be8 Bfg6 Bd7 Bge4 Be8 Qf7 Bd7 Bcd3 Be8 Ng6+ Kg4 Bf3+ Kh3 Ne5 Nb8 Bg3 Rc1 Bgf2 Bc6 Qgg6 Bd7 Rb4 Ba4 Rb5 Nc6 Qg5 Nb6 Qfg6 Nc8 Q5h5#
kN2rQb1/4N1Rp/5QrP/1Q4B1/2p3nr/Pb1q2N1/b1B2bK1/Rb2N2R b - - 0 1 legal: proof: f4 a5 g4 f5 c4 d5 cxd5 e5 b3 Nc6 b4 axb4 fxe5 f4 Ba3 Nce7 Bc1 Nf5 gxf5 Ra5 Na3 Ra6 Nb1 Ra8 Kf2 Kd7 h4 c5 e4 Kc7 d4 Kb8 h5 b5 e6 g5 h6 f3 f6 g4 e5 b3 e7 b4 e8Q c4 d6 b2 f7 b3 d7 Bd6 f8Q Qc7 d8N Ra3 e6 Bc5 e7 Be6 Qb5+ Ka8 e8R Qd6 Nd2 b1B Bd3 b2 Bc2 Nf6 Ne2 Bg8 Re7 g3+ Kg1 f2+ Kg2 Ng4 d5 Rc3 a3 Ba2 Nf3 b1B Rg7 Bb6 Qd4 f1B+ Kg1 g2 Nc6+ Qd8 Ne1 Rh3 d6 Rh4 Ng3 Be2 Bg5 Bd1 Nb8 Qd7 Qdf2 Qf5 d7 Qd3 d8N Ba7 Ba4 Bdb3 Ndc6 Bd5 Qf3 Re8 Qf6 Bg8 Qfc5 Ne5 Kf2 g1R Ne7 Bb6 Nh5 Rgg4 Ng3 Ba7 Kg2 Bb6 Be3 Rg6 Bg5 Ng4 Qcb4 Bf2 Qbd6 Bd1 Bc2 Qf5 Bd3 Bdb3 Bc2 Qd3 Qdf4 Be3 Qf8 Bf2 Q4f6
7n/1PBQ4/KbbqQRn1/1QpQ2R1/3b1R1n/3Np2b/2PkbBBr/7N b - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 d5 fxg5 dxe4 h4 Qd7 g4 Bb7 h5 Bd5 g6 Qd8 g5 Ra6 g7 Rg6 hxg6 Bb7 Ne2 Ba6 Ng1 Bc8 Ke2 Kd7 b4 Ke6 d4 Kf5 b6 h5 b7 e5 b5 e3 Kd3 Kf4 Kc4 f5 d5 h4 b6 a4 Kb5 h3 d6 a3 d7 e4 Nd2 e2 Bb2 Ke3 Ndf3 e1N Bg2 f4 Ne2 h2 Rf1 h1B Ne5 f3 Ng3 f2 Nd3 Ne7 g8R a2 g7 Rh2 g6 Nbc6 b8Q Ne5 b7 c5 Ka6 N1f3 Qd6 Nf7 Qd5 Qc7 d8B Nh8 Qc6 Bg4 Qb5 Nh4 Bc3 Be6 Be1 Bh3 Rb1 a1B Rb4 Qe5 Bc7 Bd4 Qg4 Qf4 Qgd7 Qh6 Rg1 f1B Bf2+ Kd2 Rc4 Be2 Rf1 e3 Rb4 Bb2 Rf4 Bf6 Rc4 Bb2 Bd8 Nef5 Bf3 Rg2 Bg1 Rf2 Bb6 B1g2 Nh1 Ba3 Bd5 Bb4 Bc7 Ne7 Be4 Rf5 Rf3 Rg5 Bf2 Ba5 Bd5 Rg4 Rf5 Bgf3 Rcf4 Rg2 Rf7 Rh2 Be4 Bfg4 Bg2 Bb6 R7f5 Bh5 Rf7 Bhf3 R7f5 Nd5 Rg5 Bd6 Rgf8 Ne7 g8Q Bc6 Qd5 Be5 R8f5 Qf8 Q5e6 Bd4 g7 Neg6 g8Q Bf1 Qed5 Be2 Qge6 Qd6 Rf6
5nn1/2p4n/p1QnNBr1/6Nq/Q1Q1nrBb/P4PN1/kRR1rB1N/2K5 b - - 0 1 illegal: No possible last move, all moves rejected
K4NQb/1R3Pp1/3Nb3/1nQ2Q1R/8/1rQRpnPn/Bkb1Nn2/5qBn b - - 0 1 illegal: Other
K1Q2R2/NNrB1R1b/Bk1rqbr1/n2Np3/pPB3r1/P3Q3/1R3r1B/2q5 b - - 0 1 illegal: No possible last move
rk3b1b/B7/1r2BpQ1/BPQp2R1/R1N2P2/3Q1N1q/q3bbB1/2KbRn2 b - - 0 1 illegal: No possible last move
r3q2n/q3pbq1/2qN2R1/1N1QPR1N/5Rr1/5K2/qk1p1n1P/1BBB1Q1N b - - 0 1 illegal: No possible last move
1r1bk1nr/1BN3p1/K1Qp1B2/B2B1bR1/qbN1b1P1/2bR2NP/7Q/q6R b - - 0 1 illegal: No possible last move
3B1q2/1K1BR1Q1/1pp1Q2q/1B1n1R2/q3R2q/NPNPr2R/k1Nn1r2/q2b4 b - - 0 1 illegal: No extended proof kernel
Q2bR1k1/Q4n2/1P1nqp1p/Q1R1rNBK/3rR3/q3B3/r2RB2P/3r1N1r b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 f6 a4 Na6 axb5 Nb8 f5 Be6 g4 Kd7 g5 Bf7 g6 e6 gxf7 exf5 Qb3 f4 Qc2 Bd6 Qd1 Bf8 Kf2 Ke7 Kf3 g5 Kg4 c5 b4 a5 d4 h6 e4 c4 e5 f3 d6+ Ke6 b6 f2 b5 a4 b7 c3 b6 c2 d7 a3 Qe1 a2 Nf3 Qe8 d8R Nd7 b8Q Ne7 Kh5 g4 Be2 f1R Nbd2 g3 Nh4 g2 Nf5 g1R Qa7 Rf4 Nf1 Nc8 Qea5 Nd6 Rc8 Rhg8 Rc5 Be7 Bd2 Re4 Rd1 a1R Bg5 c1Q Rd2 Rg6 f8B Kf7 d5 Rd4 e6+ Kg8 Qc3 Qc8 Qca5 Bd8 e7 Ne5 e8R Nef7 Re4 Qa3 Be7 Nc4 d6 Qe6 d7 Rd1 Bd6 Rg7 Bdf4 Ncd6 Be3 Rh7 N1g3 Rge1 Rf1 Rh8 Rf3 Rh1 Nf1 Kh7 Rff4 Re8 Ree5 Kg8 Rfe4 Rc8 Rb5 Rc2 Rbc5 Bc7 d8Q Ra2 Qda8 Bd8 Rc7 Qd7 Rec5 Re5 Rb7 Qc8 Re7 Qe6 Re8+
R1N1KbN1/1P1Q1p2/Rq1Q4/3q1q2/1R1BN1B1/Bk3P1p/qq4r1/1bnn3R b - - 0 1 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 exd5 Bh3 d4 Bh6 d6 Kf8 d5 Kg7 c5 Bc8 h3 Kf6 h4 Ra6 d7 Rd6 cxd6 gxh4 Ne2 Bg7 Ng1 Bf8 Kd2 Ke5 Kd3 c5 Kc4 h5 g4 a4 b4 h3 b6 h2 Kb5 c4 g5 a3 g6 c3 g7 a2 b7 h4 Ne2 c2 Nd4 h3 Nf5 Nc6 b8R Nf6 g8N Na5 Ba3 c1Q Nc3 Nb3 Kc6 Ng4 b5 Qb2 b6 Ne3 Ne4 Nc1 Be2 e6 Qa4 Nd1 Bg4 Ba6 b7 Bd3 Ra8 Bb1 Nfe7 Rh5 Ra6 Rg5 Nc8 Rg6 Qb5 Kd4 f3 e5 Qb6+ Kc4 Ra8 Qf6 d8Q Qf5 Qd7 Rg7 Qc5+ Kb3 Kc7 Rg5 Kd8 Rg7 Ke8 Rg5 Rg1 h1Q Qcc6 Qhg2 Rh1 Qgf2 Ra6 Qb6 Qcc7 Bd3 Rb1 a1Q Qcd8 Kc2 Qf6 Qba2 Rb4 Q1b2 Qde7 Rg6 d7 Rg5 d8R Rg6 Ned6 e4 Qd7 e3 Ne4 e2 d6 e1Q Na7 Ne2 Qb5 Ng1 d7 Bc5 Ra8 Ne2 d8B Qd2 Bh5 Nc1 Qd7 Bf8 Qfd6 Rg5 Nc8 Rg2 Rb5 Qda5 Rb4 Qab5 Bg4 Qbd5 Ng5 Kc3 Bf6+ Kc2 Bd4 Be4 Rc4+ Kb3 Rca4 Bc2 Ne4 Bb1 Rb4+
Nk1nRn2/2p2B1q/3R2Qn/1N1KB1p1/2BQ1qb1/rRP4R/Q4Pn1/1r3n2 b - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 b4 g5 b3 g6 Be7 axb3 Bd6 b4 Be7 h4 Bf6 b5 fxg6 h5 g5 h6 g4 Ra6 g6 Ra1 Bg7 hxg7 Ke7 Bg5+ Kf7 Bc1 Ke8 Kd2 d5 Ke3 Kd7 Kd4 a5 e4 h5 b4 h4 c3 a4 b6 g5 b7 g3 b5 h3 b6 h2 Ba3 g2 Nd2 Qe7 Ngf3 g1Q Bd6 a3 Nc4 a2 e6+ Kd8 e5 Nc6+ Kc5 d4 b8Q d3 b7 d2 Nb6 Qg3 Qa7 Qf4 b8R Rh7 Qda4 d1N Nd4 Ne3 Rd1 a1N Qa2 Ng2 Bc4 Nc2 Rd3 Rh4 Rhd1 Nh6 g8B Qh7 Bf7 h1N Rg3 Rh2 Rh3 Ng3 Rb7 Bd7 Rd2 Rb8 Na8 Kc8 Rb2 Rb4 e7 Rb3 e6 Nd8 Nb5 Nd4 Be5 Ra3 Rb3 Rh1 Rd3 Nc2 Rd6 Nd4 Kd5 Rb1 e8Q Nf1 e7 Ne6 Qg8 Nf8 e8R Bg4 Qd4 Kb8 Qg6
rN3RRq/bpK2b1p/2PQ1RQP/3kq1NB/1q6/R5B1/n4n1Q/n1q2N2 b - - 0 1 legal: proof: d4 f5 b4 c5 dxc5 a5 e4 axb4 exf5 Nc6 f4 Ra4 g4 Nh6 f6 Ng8 f5 Nb8 g5 Qa5 Qd4 Kd8 Qg4 Kc7 Qd1 Kc6 f7 Qd8 Qd4 Ra6 Qg4 Kc7 Qd1 Rf6 gxf6 Kc6 Kf2 g5 Ke3 d5 Kd4 g4 Ke5 e6 a4 d4 h4 b3 c4 d3 a5 d2 a6 b2 h5 g3 h6 g2 a7 Qa5 a8Q Qd8 Nf3 g1Q Ra3 Qg7 Qc2 d1N Bf4 Qe8 Ng5 Bd7 Qa6+ Kc7 c6 Nf2 c5 Ne7 Be2 Nd5 Bg3 Ne3 Nd2 b1Q Nf1 Qb4 Bh5 Rg8 Rh4 Qh8 Rf4 Qc8 Qb2 Nc2 Rff3 Bg7 f8N Be8 Nd7 Bf7 Qd3 Na6 Nb8 Na1 Qdc2 Kd8 Kd6 e5 c7+ Ke8 Qcb1 e4 Qd2 e3 Rf4 Nd3 Qh2 e2 Rf2 e1Q Rf3 Bg6 f7+ Kf8 Qbc2 Bd4 Qcg2 Qce8 c8R Qc1 Qc2 Nf2 Rf4 Qa5 c6 Nb4 Rd8 Qa4 Kc7 Ke7 f8R Bf7 Qe4+ Kf6 Qb1 Ke5 f6 Ba7 Qg6 Na2 Rc8 Bb3 f7 Kd5 Rf6 Qe2 Rfe8 Qee3 f8Q Qb4 Qe7 Bc4 Ref8 Qe5+ Kd7 Kd4 Rcd8 Bf7 Rde8 Kd5 Rc8 Qf5+ Kc7 Qe5+ Kd8 Qbc5 Re8 Be6 Na6 Qee3 Kc7 Qb4 Ra8 Bf7 Rec8 Rd8 Rcb8 Rd6 Rg8 Qed4 Rae8 Rd8 Ref8 Ra8 Nb8 Qe5+ Qd6+
1bk1q1n1/QnBP2bN/RqQ1n3/2RnR3/1BR2pp1/r4BP1/5K1N/6Qb b - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 a4 exf4 axb5 g5 Nc3 g4 Nb1 Ra6 Qa4 Rg6 Qd1 Rg5 hxg5 Bg7 Qc2 Bh6 Qd1 Bf8 d4 Kd7 e4 c5 b4 f5 d6 h5 g3 h4 b6 c4 e5 a4 e6+ Ke8 b5 c3 d5 f3 e7 Kd7 e8R c2 g6 a3 b7 a2 g7 f4 b6 h3 Re5 h2 Bg2 Rh4 Nd2 Qc7 Nf1 Be7 Nh3 Rh6 Kf2 Nc6 b8R Na5 Ba3 c1N b7 Ncb3 Bb4 Nc5 Ng5 Qb6 Nh7 Ne6+ Qd4 Kd8 d7 Bd6 Qe3 Kc7 d8B+ Kd7 Rg1 h1Q Bc7 Qh5 Nh2 Qe8 Rgc1 Rf6 Rc2 Rf7 Rac1 a1B Ra8 Rf5 b8Q Nb7 Qa7 Rg5 Kf1 f2 Bf3 Rh5 Ke2 f1N Qg1 Ne3 Kf2 Bb2 Rc5 Bc3 Bd8 Bb8 d6 Nd5 Bc7 Ba1 Rc4 Bc3 Re2 Re5 Re1 Re3 Re2 Bf6 Re1 Ra3 Re5 Nge7 g8Q Bg7 Qf8 Ng8 Qf6 Na5 Qf5 Bb7 Qc2 Kc8 Qa4 Ba6 Qc6 Nb7 Rce4 Be2 Rc4 Bf1 Qa5 Bh3 Ra6 Bg2 Qaa4 Bh1 Qa5 Qb5 Qab6 Qa5 Qa7 Qb6 d7+
4k1Br/q2r2Np/BR1q1QPq/Q3B3/b4pr1/3rRP2/N1N2bn1/1RK2B2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Nd7 Ra1 Ndf6 d3 Nd5 exd5 c4 Ra2 cxd3 Ra5 Be6 Ra1 Bc8 Kd2 a5 g4 e5 c4 f5 b4 f4 f3 e4 d6 a4 g6 a3 c5 a2 g5 Nf6 d7+ Ke7 g7 Kf7 g8B+ Ke7 b6 Ra7 b5 Ra8 b7 Nh5 b8Q Ra3 g6 Nf6 c6 Ng4 b6 Ne3 b7 Ng2 Bb2 e3+ Kc1 e2 c7 e1Q Nc3 Qh4 Qa4 Qh6 Rb1 a1Q Nge2 Ra2 Qa5 d2+ Kc2 Ra3 Na2 d1R Rg1 Rd2+ Kc1 d3 Nd4 Rf2 Nc2 d2+ Kd1 Bg7 Be5 Rd3 Qba8 Qd4 b8R Qa7 Qc6 Bb7 Qca6 Bc6 c8B Ba4 R8b6 Qdc7 d8N Qd6 Ne6 Ke8 Rh1 Bf6 Rh5 Bh4 Rf5 Re2 Rf6 Bf2 Ng7+ Ke7 Re6+ Kf8 Bb2 Re5 Bd4 Rg5 Re3 Rg3 Be5 Rg4 Q6b5 Ke7 Qc6 Kf8 Ke2 d1R Ba6 Qdc7 Qcc3 Rd7 Qd4 Rd3 Qb2 Qd6 Qd4 Rc3 Kd1 Rd3+ Kc1 Ke7 Nh5 Ke8 Qdc3 Qe6 Qc6 Qd5 Qf6 Qd6 Ng7+
1nQR2q1/1Rb2N2/q1r1nK2/1Bk1n2P/2bN1b1B/4Np2/nRN1pP2/4QB2 b - - 0 1 legal: proof: e4 c5 g4 d5 d4 h5 gxh5 b5 a3 a5 a4 Ra7 axb5 Rd7 Nc3 cxd4 Nb1 d3 Bh3 d4 Bf1 Rd5 exd5 Rh6 Nh3 Rh7 Ng1 Rh8 Kd2 Kd7 c4 Kd6 b4 e5 h4 f5 b6 g5 b7 f4 h6 g4 b5 f3 b6 g3 h5 g2 h7 a4 Ra2 a3 Ne2 g1N Qe1 e4 Ng3 Nh6 Rb2 a2 Na3 a1B Nc2 Bd7 Nf5+ Kc5 d6 Nf7 Nfe3 Bb5 d7 Ne2 Rh4 Qf6 d8R Nf4 Rg4 Ne6 Rg7 Rg8 h8N Ne5 Nf7 Bd6 Rh7 Rg6 Rg7 Na6 b8Q Bc7 Qc8 Nb8 Rh7 Qh8 b7 Qg8 Rg7 Kc6 c5 Bc4 Nb4+ Kb5 c6 Kc5 Nbc2 Ned7 Kd1 d2 Rh7 Bf4 c7 Ne5 Rg7 Na6 b8N Rh6 Nc6 Nb8 Rb1 Bc3 Rb2 Ba5 Na3 Bb6 Kc2 d3+ Kc3 d1Q Nac2 d2 N6d4 Qe2 Qd7 Ba6 c8B Bc4 Ba6 Bc7 Qc8 Rg6 Nd5 e3 Bb5 Qd1 Rh7 e2 Nde3 Rf6 Nb4 Qa4 Nbc2 Qa6 Rg7 Bb3 Rh7 Ng4 Kd3 d1N Ke4 Bc4 Bd2 Rg6 Kf5 Ne5 Bc1 Nc3 Bd2 Rg2 Kf6 Na2 Bb4+ Kb6 Be7 Rg6+ Kf5 Rh6 Bh4 Kc5 Rg7 Ng5 Rh7 Rc6 Rg7 Ne6 Kf6 Bb6 Ng5 Ba5 Rb7 Bc7 Nf7
qNk1QK2/3N1R2/2pBBN1n/p1P3Bb/PbB1q3/4R1bb/r4q2/1R1n1Q2 b - - 1 2 legal: proof: e4 a5 d4 g5 h4 b5 hxg5 f5 c4 Ra6 exf5 bxc4 Be2 Rc6 Bf1 Rc5 dxc5 Bg7 Ke2 Bh6 Ke1 Bf8 Ke2 e5 Ke3 h5 Ke4 c6 a4 h4 f4 d6 b4 Kd7 g4 h3 g6 h2 g5 c3 f6 c2 Kf5 e4 b5 d5 b6 d4 f7 e3 g7 e2 Kg6 e1B f5 d3 f6 d2 b7 Bg3 Nf3 Qe8 Nc3 Qe3 Nd5 Qg1 Rb1 Na6 Bc4 Be1 Ne5+ Kd8 Rb3 Bd6 f8B Qg2 Kf7 Qe4 g6 Nb4 Rd3 Bf5 Nd7 Na2 Qf3 d1B Bg5 c1Q Re3 Qc3 Qh3 Qb3 b8N Qb7 Qf3 Bf4 Bd6 Bb4 Rhe1 Nc3 Qf1 Bdg4 Rd1 Kc8 Rb1 Qc2 Ke8 h1Q f7 Rh6 f8R Bg3 Rf7 Rh2 N5f6 Nh6 Kf8 Bf3 g8B Rg2 Rh7 Bh5 g7 Qa8 Bge6 Bh3 g8Q Nd1 Qg7 Re2 Qe7 Qhe4 Rf7 Qd2 Ng4 Qe1 Ngf6 Ra2 Qg2 Qd2 Qf1 Qf2 Qe8+
2R3b1/qq3N1R/3q1rbp/1n1B3k/3BQR1P/r1BPN1pK/2Bq1b2/N6Q b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 Nc6 cxd5 Nce7 Ra4 exf4 Ra1 f3 Ra6 f4 Ra1 Nf5 gxf5 Qe7 Ra5 Qg5 Ra1 Qd8 Kf2 Kf7 b4 a5 e4 c5 d6 g5 d7 a4 d3 g4 b6 a3 e5 c4 f6 Kg6 b7 a2 b8B c3 e6 c2 e7 Ra3 e8B+ Kg5 f7 Be7 f8R Ra7 b5 Nf6 b6 Ba6 b7 Bc4 Ne2 Ra3 Bd2 c1Q Bc3 Bg8 Bg2 Nd5 Nd2 Nc7 Ba7 Bc5+ Nd4 Nb5 b8Q g3+ Kg1 Kh6 Nf1 Qd2 Rc1 a1Q Ne3 f2+ Kf1 Qe7 d8N Qd6 Nf7+ Kg6 Qe1 Kh5 Bd5 Qb1 Kg2 f3+ Kh3 f1B+ Ng2 f2 Nb3 Qbb2 Qa8 Be2 Na1 f1Q Bd7 Be3 Bad4 Qg1 B7c6 Bf2 Ne3 Qbb4 Bb3 Bf3 Bcd5 Be4 Bc2 Bg6 Qe8 Qb1 Qe4 Qb3 Be6 Qbd5 Qf1 Qb7 Bd5 Qa7 Qfg2 Qgd1 Rc8 Qf3 Rhf1 h6 Qh1 B8h7 Rb1 Rf8 Rb4 Bg8 Rbc4 Qff6 R4c7 Qg7 Re7 Be1 Rf4 Bf2 Kg2 Qh7 h4 Qb7 Kh3 Qa7 Ng5 Rf6 Rb7 Qhc7 Nf7 Qcc6 Nh8 Qcb6 Rh7 Qbb7 Nf7
5n1n/1Q1q2q1/P6p/K1Q2qr1/R3bk1P/N1p1Q1qr/3NB1BN/1N3RBn b - - 0 1 illegal: No possible last move
2Q2B2/qk1KQ1rn/6Bp/1PBR3p/2bRq2b/BNr4P/N1r1bRN1/1r6 b - - 0 1 illegal: No proof kernel
2R3q1/bq1B1Nr1/Q1R2Q1K/2NrPbpN/1k2R3/1rR2pP1/5n1Q/br4B1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Nc6 h5 Nce7 Qa4 Qd6 Qd1 Ng6 hxg6 Qd8 Kf2 Ke7 Kf3 Kd6 b4 a5 d4 h5 e4 c5 g7 f5 b6 c4 b7 h4 b8Q+ Qc7 b5 a4 b6 c3 b7 a3 Nd2 c2 Bb5 h3 Qe2 a2 Nb3 h2 Nc5 Ne7 g8R Ra3+ Be3 c1R Rg6+ Be6 Nh3 Re1 Bd7 Rh7 Qa6+ Nc6 Rc1 a1B Rc3 Rc1 Re1 h1Q Bg1 Rg7 Qd8 Rd1 b8Q Rd2 Qf6 Rb3 Ree3 Qh2 g3 Be7 Qh8 Qb7 Qh4 Bd8 Rh6 Bb6 e5+ Kc7 Re1 Ba7 Re4 Nb4 Qh5 Nd3 d6+ Kb8 d5 Nf2 Bc6 Rd4 d7 Kc7 d8N Bc8 Nf7 Qh1+ Ke2 f3+ Ke3 Be6 Bd7 Qa8 Qh4 Qg8 Nf4 Rd1 Nh5 Rd2 Qc8+ Kb6 d6 Ka5 Qh2 Rd4 Qa6+ Kb4 Bc8 Qg2 d7 Qh1 d8R Bd7 Rd3 Be6 Bd7 f4+ Kd2 Bf5 Rc8 Nd1 Rg6 f2 Ke2 f1R Rc3 Nf2 Rh6 Rfb1 Rg6 Qg2 Rh6 Qf1+ Kf3 Qb5 Rg6 Qb7 Rh6 Bh7 Rg6 Nh1 Kg4 f3 Nf4 Nf2+ Kh5 Nd1 Rh6 Bf5 Rg6 Nf2 Kh6 Qa8 Nh5 Qb7 Qe7 Bb8 Rgc6 Ba7 Re2 Rd6+ Qf6 Rd5 Re4+
Q1BQ3q/1B2qb2/1n1BnP1B/Nk6/p1R1Q1pb/n3b3/NK4PR/2N1rb2 b - - 0 1 legal: proof: e4 c5 a4 a5 h4 g5 d4 cxd4 Nc3 f5 exf5 b5 axb5 g4 Nb1 Ra6 Kd2 Rg6 Ke1 Rg5 hxg5 Qb6 Kd2 Qc7 Ke1 Qd8 Kd2 d5 c4 Kd7 Kc2 h5 f4 e5 b4 h4 f6 e4 b6 Kc6 f7 d3+ Kc3 d4+ Kb2 d2 g6 h3 f5 h2 b7 e3 f6 d3 g7 e2 c5 e1B Ne2 a4 Nbc3 Ne7 g8Q Nd7 b8Q Ng6 Qc2 d1B Na2 d2 Qa8+ Kb5 c6 Nb6 c7 Bc5 f8B Be3 Qce4 Bh4 Bd6 Ba6 c8B Qe7 Qd8 Bb3 Rb1 Re8 Bb7 Ne5 Bc8 d1Q Bd2 Be6 Rc1 Bf7 Rc4 Qe1 Nec1 Qg3 Rg1 h1N Bd3 Nf2 Rh1 Qf4 Rh2 Qh6 Be2 Nh3 Bf3 Bg1 Bf4 Qh8 Bh6 Be3 Qb1 Nf4 Bfb7 Nbd5 Qe4 Ne6 Rc7 Kb6 b5 Ka5 b6 Nc4+ Kb1 Na3+ Kb2 Kb5 Rc3 Bhf2 Rc4 Bh4 Bc6+ Ka5 b7+ Nb6 Bd5 Kb5 b8N Rg8 Bdb7 Rg5 Ka1 Rd5 Nc6 Rd1 Na5 Re1 Kb2 Bg1 Bdf4 Be3 Rd4 Kc5 Be5 Bf1 Bd6+ Kb5 Rc4
3RQ1K1/bk1rb1N1/R3Q2p/2q2p1R/3N1QBq/2B2Pb1/b1q2PBn/2Q2n2 b - - 0 1 legal: proof: c4 a5 a4 g5 h4 d5 cxd5 gxh4 Na3 b5 axb5 Ra6 Nb1 Rf6 Rh2 Bg7 Rh1 Rf3 exf3 Bf8 Ke2 Kd7 Kd3 e5 Kc4 c5 g4 Kc7 d4 f6 b4 h6 g5 e4 b6+ Kb7 g6 e3 d6 e2 Kd5 e1B d7 a4 Ke6 c4 Kf7 c3 b5 c2 g7 a3 d5 a2 d6 h3 Bd2 c1B Na3 h2 Bg2 Be7 Ne2 Qc7 d8Q Nd7 Nc2 Rh7 Ne3 Nc5 d7 Nb3 Bc3 Bed2 Qe8 Qc5 Nf5 Be3 d8R Nd2 Ned4 Nf1 Qc2 Ba3 Qc1 Bd6 Qe6 Bg3 Rb1 a1Q Rb4 Nd2 Ra4 Qb1 Ra5 Qc2 Ra6 Kb8 b7 Nf1 Rc6 Ka7 b6+ Ka6 b8Q Bb7 Rc7 Bd5 Rc6 Ba2 Qf4 Bb4 b7+ Ka7 Rg1 h1Q Rb6 Qh4 Rh1 Qc4 Rh3 Be7 Rbd6 Qc6 b8Q+ Ka6 Qb5+ Ka7 Rh1 Qc5 Qe8 Kb7 Ra6 Bh2 Ng3 f5 Nh5 Bg3 Rh2 Rh8 Rh3 Nf6 g8B Rh7+ Ng7 Ng4 Rh1 Rh8 Bh7 Rg8 Bg6 Ngh2 Bh5 Rh8 Bg4 Rh7 Nc6 Qe5 Kg8 Ba7 Nd4 Qd6 Qfe3 Qc5 Qf4 Bf6 Nh5 Rd7 Ng7 Be7 Bh5 Ng4 Rh3 Ngh2 Bg4 Qg5 Rh5 Qf6 Qa1 Qh4 Qac1
4rk2/3P4/1R1nQ2B/1B1Q3n/1rN1Rp1q/1NN2Rnp/2K1bPq1/N1n2r1Q b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 Kd2 h5 b4 c5 g4 e5 b6 f5 g5 a5 b7 e4 d7+ Kf8 g6 c4 d6 h3 d5 c3+ Kc2 h4 g7+ Kf7 b5 h2 b6 e3 Na3 h3 Bb5 a4 Ne2 Rh4 Re1 h1N Nc4 Nc6 b8R a3 b7 Qc7 d8Q a2 d7 Na7 d6 Qc6 Qa5 Ng3 d8N+ Ke8 Ne6 Nf6 N6d4 Nfh5 d7+ Kf7 Nb3 Qg2 Rb1 a1Q g8Q+ Ke7 Qe6+ Kf8 Rb2 Qa4 Ra2 Qb4 Na1 Re4 Ra3 f4 Bb2 Qe7 Rb3 Qh4 Ba3+ Kg7 Be7 Rd4 Bg5 Kf8 Qa2 Re4 Qdd5 Rd4 Qb1 Re4 Kc1 c2 Nc3 e2 Kb2 Rd4 Qd1 c1N Kc2 Qg1 Qh1 Qg2 Qd3 Re4 Qdd5 Rd4 Nd1 Re4 Rf3 Rd4 Nc3 Re4 Rd1 e1R Rd2 Rf1 Re2 Rd4 Ree3 Nc6 Re4 Na5 Nd2 Nc4 Ndb3 Ra4 Ra8 Ra6 b8N Nd6 Nc6 Rb4 Rb8 Ra8 Rb6 Ba6 Ne5 Re8 Ba4 Bc4 Bb5 Be2 Nc4 Rc8 Qg6 Ra8 Qge6 Re8 Bh6+
1Q3B2/2r1pB1R/Rq2Nn2/q3PK2/1qbBR1N1/p1P4N/r2rr1BQ/1kb5 b - - 0 1 legal: proof: h4 c5 a4 b5 axb5 g5 hxg5 Qb6 g6 Qb7 g7 Nh6 f4 Qa6 d4 cxd4 g3 Ng8 g4 Nc6 f5 Qb6 g5 Qd8 Nd2 Ne5 Nb1 Ng6 fxg6 Qb6 Ra2 Qc7 Ra1 Qd8 Kf2 d5 Kf3 Kd7 Kg4 Ke6 b4 Ke5+ Kh4 Ke4 b6 f5 e3 a5 c3 h5 b7 d3 b8R a4 b5 f4 b6 f3 b7 d4 Qd2 f2 Rh3 Be6 Na3 Qb6 Nb5 Nf6 g8B Bc4 Bf7 Bh6 g7 Rc8 g8N Rc7 g6 Ra6 Qe2 d2 g7 d3 Nd4 d1R Ne6 d2 Rc8 Qb4 b8B Re1 Ba7 d1R Bd4 Rd2 Ra8 Bf4 Nh6 Ra5 g8Q Bg5+ Kg3 h4+ Kg2 Qb6 Ng4 Raa7 Rh2 h3+ Kg3 Qa5 Rh1 h2 Qb8 Ra6 Bh3 f1Q Ra7 Bh6 Bg2+ Qf3+ Kh4 Bf4 Qf2 Kd3 e4 Kc2 e5 Qe3 Nh3 Ree2 Rb1 Qe4 Rb4 Qb7 Ra8 Qbb6 Qg3 Be3 Qf4 Raa7 Kg5 Ra6 Kf5 Raa7 Re1 h1Q Qh2 Qg1 Rb1 Qbc5 Rb6 Qcb4 Ra6 Bf4 Qg3 Kb1 Qh2 Rf2 Re4 Rfe2 Qb7 Bg5 Rh8 Ra8 Rh7 Qe3 Ba7 Qeb6 Qc8 a3 Qb7 Rad8 Qb8 Ra2 Bf4 Rdd2 Be3 Bh4 Bh6 Bg5 Bg7 Rd8 Bf8 Bc1 Qh1 Rdd2 Qh2 Q6b5 Bf2 Qbb6 Bd4
1b1k4/1R1bp1K1/Q1n2BB1/pRb1P3/NN2q1R1/1RP3q1/2r5/1nNnQ1Qb b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 f5 h3 a5 gxf5 g5 h4 g4 Ra2 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Qc7 Rh2 Qb6 Rh1 Qd8 Kd2 h5 Kd3 d5 b4 g3 e4 h4 f4 g2 f6 h3 f7+ Kd7 b6 h2 g6 Qc7 e5 Na6 g7 Nh6 g8Q Qd8 b5 Nc7 f5 Bg7 f8Q Bb7 f6 Ng4 f7 Ba6 b7 Rh7 b8R Bh6 Bg5 Bc8 b6 Ne3 b7 Ne6 Nc3 Nc4 Bf6 Na3 Rb1 Be3 Rb5 Nb1 Nge2 g1B Qh6 Qf8 Na4 Kd8 Qg3 Qg7 Qge1 Qg3 c3 Bgf2 Rg1 h1B Qg6 Rh2 Nc1 Rg2 f8N Rh2 Nh7 Rg2 Kc2 d3+ Kb3 d4 Kc4 d2 Kd5 d3 Be2 Nc5 Bh5 Nd7 Ke6 Ba7 Kf7 Bfc5 Kg7 Rh2 Qde2 d1Q Qg5 d2 Bg6 Qc2 Rg2 Qf3 Rg4 d1N Qge3 Qfe4 Q3g1 Qcd3 Rb3 Qde3 Qa6 Rc2 Ng5 Rb2 Nh3 Rc2 Nf4 Qh3 Nd5 Qg3 Ra8 Nb8 Nb4 Nc6 b8R Be3 Rb6 Bc5 Rb5 Bb8 Ra7 Bd7 Rab7
1Nr2r2/2p1b2Q/P3nq1R/1bP1BQBR/Bq1r3B/5K2/1pq2N1k/1N3Rq1 b - - 0 1 illegal: No possible last move, all moves rejected
q1Nn3N/r3N1np/3R1KQk/2QNBbn1/1b3P1P/p7/n2qB1Q1/1R1R3b b - - 0 1 legal: proof: f4 b5 c4 e5 a4 exf4 axb5 d5 cxd5 f3 g3 Be6 Bg2 Bd7 Bf1 Bc8 Qa4 f5 Kd1 a5 Na3 f4 Nb1 f2 Kc2 f3 Qb3 Ra6 Qa4 Rf6 Qb3 Rf4 gxf4 Bg4 Kc3 Be6 Qd1 Bg4 Kc2 Bc8 Kd3 Kf7 Ke4 Kg6 Ke5 c5 h4 c4 e4 c3 d4 c2 b4 a4 b6 a3 b5 Na6 b7 Nh6 b8N Be6 d6 Qa5 d5 Bg8 b6 Qb4 d7 Nc7 d8N Qa4 b7 Nb5 d6 Qa5 d7 Bc5 Nc3 Be6 Ndc6 Bf5 d8R Bb4 Be2 f1N Bb2 c1Q Qd5 f2 Qc5 Ng3 Nf3 f1B Ng5 Qd2 Nd7 Bg2 b8Q Qa8 Rad1 Nh5 Nd5 Nc3 Nf7 Na2 N7b6 Rf8 Rhf1 Bh1 Nc8 Rh8 Qb7 Re8+ Kd6 Re7 e5 Rc7 e6 Re7 Ng5 Rc7 Rd7 Nf7+ Ke7 Kh6 Be5 Nd8 Rb1 g6 Rfd1 Ng7 Kf6 Qe3 e7 Qd2 Nf3 g5 e8Q g4 Ng5 g3 N6e7 g2 Rd6 g1N Qbc6 Nf3 Nf7+ Kh5 Nh8+ Kh6 Qg8 Ra7 Qa6 Ng5 Qd3 Ra6 Qe4 Ra7 Qg2 Nc3 Qf7 Na2 Qg6+
1qQ3rk/4N1q1/Q1br3p/N1qp1Bb1/bN2R1P1/R1nQB2P/7K/1BQ2b2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 f4 c6 fxg5 Na6 e5 Nc5 d3 Nb7 d4 Nd6 exd6 c5 Ke2 cxd4 Kf2 Bb7 Ke1 Bc8 g4 e5 Kf2 f5 Kg2 Kf7 b4 Kg7 c4 a5 d7 e4 b6 a4 c5 d3 h3 a3 b7 a2 b8Q e3 c6 d2 g6 e2 b5 e1Q c7 h6 b6 f4 b7 f3+ Kh2 f2 Qa7 Bb4 b8Q Qe2 Qb5 Be7 Nf3 Bb4 Ne5 Qe4 Nd3 Ba3 Nb4 Qd4 Bd3 f1B Qaa6 Bb7 c8B Nf6 Qc2 d1B Nd2 Rg8 Nc4 Rb8 Na5 Kh8 Be3 Ne4 Qc1 Bc6 Bb1 Rb6 Qd3 Qc5 Rg1 Qdf8 d8Q Nc3 Bf5 Bda4 Qdc8 Qg7 Rg3 Qb7 Rf3 Qb8+ Rf4 Bb2 Qcd2 Bc1 Qb2 Be8 Qa3 Rd6 Re4 Bd2 Qc1 Bec6 Bg1 Bg5 Be3 Rf8 g7+ Kg8 Be6+ Kh7 g8N Kh8 Ne7 Rg8 Bf5 Qbb6 Bc2 Qb8 Rb1 a1Q Rb3 Ne2 Ra3 Qg7 Bb1 Nc3 Qd4 Bfb5 Qdd1 Bf1 Qdd3
R2K1QB1/1q1pPbQN/b7/2Br1nR1/3PBp1n/q5N1/1B2Nbqq/Q5k1 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 f4 exf4 h4 g5 hxg5 Ke7 a4 Ke8 b6 Ke7 b5 Ra6 b7 Rf6 b6 Ke8 Nh3 Rf5 Ng1 Rb5 axb5 a4 Kf2 Ke7 Kf3 Ke6 Ke4 c5 d4 h5 g4 f3 g6 a3 g7 f2 g5 a2 g6 h4 Nd2 h3 Bg2 f1Q Nb3 c4 Bb2 c3 Nc1 Nh6 g8B c2 g7 Nc6 b8Q h2 b7 Qb6 Qg3 Ne5 b8B Ng6 Bd6 Nh4 Bc5 Be7 e3 N6f5 Nge2 Rh7 Rg1 h1B Qde1 Qd6 b6 Ba6 b7 Rh5 b8Q Kf6 Bf3 Qg2 Qf8 Qc7 Qg4 Qch2 Kd5 Bd6 e4 Bg3 Qa5 Bf2 Ng3 Rg5 e5+ Kg6 Nd3 c1Q e6 Qb1 e7 Kf6 Nc1 Rh5 Qe4 Kg5 Qe5 f6 Be4 Kg4 Qe1 Kh3 Qa5 Nd6 Qg5 f5 Ke5 f4 Kf6 Ndf5 Kf7 Qc2 Ke8 Qb3 Kd8 Qb7 Bgd5 Qf1 g8N Ne3 Bb1 Be2 Nf6 Be4 Rg2 Bg6 Bg8 Bf7 Qgg7 Rd5 Nge4 Nef5 Rg5 Bd3 Ng3 Kg2 Qa6 Kg1 Nh7 Bc4 Be4 Qfg2 Rb1 a1Q Qa7 Qa4 Ra1 Qab4 Qa2 Bf1 Qb1 Qc3 Ra8 Ba6 Qa1 Qa3 Nce2#
3R1k2/qp2n3/1B2QK2/5Rr1/bP1Nq1B1/1qP1Qnp1/n1Rr2QN/4N1qQ b - - 0 1 illegal: No proof kernel
Q2N1KN1/Nqn2P1k/r1R4p/1QB2R1n/2B2Bq1/2n5/1rp1R1nP/1qN4b b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kb3 Kf7 Kc4 Kg6 Kc5 a5 d4 h6 b4 a4 e4 a3 e5 c6 b6 a2 e6 Ra6 f5+ Kh7 d6 g5 b7 g4 d5 g3 b5 g2 e7 Ra4 e8N Nf6 d7 Ra3 Kd6 c5 b6 c4 Bf4 c3 Bc4 f1Q Ne2 g1N Qa4 f2 Qb5 c2 Nbc3 Qd1 Nc1 Ne2 Re1 Ng3 Re2 Nfh5 f6 f1Q f7 Qg5 d8N Na6 b8R Qg4 Ke7 Qh1 b7 Nc7 d6 Ne4 d7 Ra6 Bd6 Qdf1 Bc5 Qe1 Rb1 a1N Rb2 Nb3 Nf6+ Kg6 Ng8 Nd4 Ra8 Nf5+ Kf8 Ne3 b8B Bb7 Ra2 Qd1 Ra5 Kh7 Ra7 Ng2 Ra8 Nd5 Bf4 Nc7 Rb8 Ba8 Rb6 Qd5 Rd6 Qb7 Rc6 Qf1 Qa4 Qe1 Nb5 Nc3 Na7 Qd1 Qb5 Qg1 Nb3 Qb1 Nc1 Qg6 Qb3 Qg3 Rf6 Qa1 Ne6 Rd6 d8Q Qc6 Rf5 Nh4 Ke7 Qg4 Ra6 Qb1 Qb2 Bb7 Qa8 Qb5 Qb4 Bh1 Qa5 Ng2 Nf6+ Kg6 Qb4 Rb8 Ng8 Kh7 Nd8 Qc6 Qa5 Rb2 Kf8 Qb7 Qb5 Rf6 Rae6 Rg6 R6e3 Rb6 Re6 Ra6 Rc6
2RN1q2/BB2qpn1/1bK1NQ2/r4QN1/n5Pk/BB1p1P2/1n2Rn1Q/b4b2 b - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 a4 g5 hxg5 b5 axb5 Ra6 Rh4 Rd6 Rh6 cxd4 Rh1 d3 Qe2 d4 Qd1 Rd5 exd5 Bg7 Na3 Bh6 Nb1 Bf8 Kd2 h5 g4 e5 c4 Ke7 b4 h4 d6+ Ke6 c5 h3 d7 e4 g6 Kf6 c6 Kg5 g7 a4 c7 a3 f3 h2 b6 a2 b5 Na6 b7 Rh6 b8B Qe7 d8N Nf6 g8Q+ Kh4 b6 Qb4+ Nc3 Rh7 b7 Bf5 c8B Qb6 Qg7 Bc5 Ba7 Nh5 b8Q Qd6 Nge2 Bb6 Qc2 Nc5 Nf4 Qf8 Nfe6 Na4 Bb7 Rh6 Qge5 Ng7 Ba3 Rh5 Re1 a1B Re2 Rg5 Rg1 h1N Qf6 Nf2 Qf4 Bg6 Q4f5 Bh7 Nd5 Bg6 Ndf4 Bh7 Nh3 e3+ Kc1 d2+ Kb1 d1Q+ Ka2 Qe1 Kb3 Bg6 Kc4 Qeb4+ Kd5 Qbe7 Q5e5 Bd3 Kc6 Ba6 Qh2 Bc4 Qff4 Ra5 Qcf5 Ba6 Rg2 Bc4 Rc2 e2 Rc3 e1N Nhg5+ Nh3 Be2 Nd3 Bd1 Ndb2 Bb3 Bf1 Re2 d3 Qd4 Qb4 Qdf6 Qbc5+ Kd7 Qb4 Rc8 Qe1 Qg2 Nf2 Kc6 Qeb4 Qg1 Qbe7 Qh2+
N6B/2R3b1/b3pB2/3k1nnQ/2p3QN/RrP2Rq1/4PB1n/1q1QBnbK b - - 0 2 legal: proof: d4 b5 f4 g5 fxg5 c5 a4 a6 axb5 c4 g4 h5 g6 a5 g5 Ra7 Bh3 Rc7 Bg4 Rc5 dxc5 hxg4 Kf1 f5 Kg2 d5 b4 Kd7 h4 Ke6 c6 a4 b6 g3 h5 d4 h6 d3 b5 a3 g7 a2 c3 f4 c7 d2 h7 Qd5+ Nf3 Qf5 b7 Qc2 b6 Nh6 g8Q+ Kd6 g6 e6 g7 Bd7 c8R Qg6 Qf7 Na6 g8Q Bg7 b8B+ Kd5 b7 Bb5 Ba7 Nc5 b8B Ne4 Rh3 Ng5 Kh1 Ng4 Na3 Ba6 Be5 Nh2 Nh4 f3 Nb5 f2 Bf6 f1N Rc7 Qd3 Qh5 g2+ Kg1 Qg3 Bf2 Qf4 Rf3 Qg3 Qgf7 Rg8 h8B Rb8 Qg4 Rb6 Qfh5 Rb7 Qc2 d1N Bd2 Nde3 Qd1 Nf5 Bde1+ Nd4 Rb1 a1Q Rb3 Qb1 Ra3 Rb6 Nd6 Rb4 Nc8 Rb3 Nb6+ Kd6 Na8 Kd5 Qc1 Nf5 B2d4 Qf4 Qd1 Qe5 Kf2 g1B+ Kg2 Qd6 Kh1 Qg3 Bdf2+
8/1k2pqPq/1p2q2r/N1bRrRBr/2K3B1/1R1QB1NN/1P3nn1/1R1Q1q2 b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Be6 a5 Bc8 a6 Bb7 axb7 Qd6 Qc2 Qd7 Qd1 Qd8 Ke2 Kd7 Kd3 h5 f4 a5 g4 c5 f6 Kc7 f7 a4 g5 a3 g6 a2 f5 h3 f6 h2 Kc3 h4 d4 h3 Kb3 Na6 b8N Nb4 d6+ Kb7 d5 Bh6 f8R Qe8 f7 Ra5 d7 Nd3 d8Q Ne1 d6 Be3 d7 Nf6 Kc4 Ng2 Nd2 Rh6 Nc6 Ne4 Rb1 a1Q Be2 Nf2 Bg4 Rh5 Ne4 Qa2+ Qb3 Bd4 Bg5 Rh6 Ng3 Rh5 Kd5 c4+ Qb5 Bc5 Qa4 Qa1 Qd1 c3 Kc4 c2 Qa8+ Kc7 d8R Qa3 Rd4 Qe3 Rd5 Qe6 Qa6 Rb5 Qa3 Kb7 Qad3 Rh6 Rh8 Ra5 f8B Q8f7 Rh7 Rh5 Bfh6 Rb5 g7 c1Q+ Q1c2 Qce1 Qcd1 Qf1 Be3 Re5 Bhg5 Ra5 Rh5 Rb5 N1e2 Ra5 Rg1 h1Q Nf4 h2 Rh3 Ra8 Rh5 Rh8 Nh3 Rh6 Kb5 Qe2 Kc4 Qef3 Rf1 Q3f5 Re1 Qf1 Re2 h1R Rc2 Kc8 Rc3 Qh7 Rb3 Rh2 Bf6 Rh1 Rf5 Kb7 Bfg5 Rh2 Ng1 R2h4 Nh3 R4h5 Na5+
N1nq3r/pNP1RB2/4Rn2/3QK1Q1/B1k4R/n2pB2B/P2q1q1r/1N3q1b b - - 0 1 illegal: No possible last move
B1nbB3/2B1R1b1/1N5p/3pNQbP/1rbbR1KP/3N1R1B/nQq3b1/5k2 b - - 0 1 legal: proof: d4 b5 b4 a5 bxa5 f5 g4 c5 dxc5 Ra6 e4 Rh6 h4 Rh5 gxh5 fxe4 Ke2 Kf7 f4 Ke6 a4 Kf5 c4 Kg4 f5 Kg3 c6 d5 a6 g5 c7 e5 f6 b4 f7 e3 c5 b3 a7 e4 a8B g4 a5 b2 a6 h6 a7 Nc6 Ra3 Nge7 Rd3 Ba6 c8R Bc4 Qd2 Qc7 Nh3 Nb4 c6 Bg7 f8Q Na2 Na3 b1B Re8 Nc8 Re7 Rg8 Qf6 Rf8 Qe6 Rf4 Qf5 Bc2 Rg1+ Kh2 Bb2 g3 Nf2 g2 Be5 Kg3 Rh1 g1B Bh3 Bb1 Qb2 Bc2 Bg4 Kg2 Bb7 Bb1 a8B Bc2 Ba6 Bb1 Bb5 Bc2 Ke1 e2 Rf3 B2d3 Kd2 e1B+ Ke3 Kf1 Rh2 Ba5 Bh3+ Ke1 Rg2 Bf1 Rg4 Bg2 Ba4 Kf1 Bd6 Qb7 c7 Qc6 Be5 Qg6 Bd7 Qc6 Be8 Qa4 Bd6 Qc2 Be5 Na7 c8N Bd8 Nb6 Nc8 Rg6 Rg4 Bc7 Rf4 Nb5 Rg4 Nd6 Rf4 Nf7 Rg4 Ne5 Rf4 Kd4 e3+ Qe4 e2 Ke3 e1B Qf5 Bb4 Rg4 Rd4 Re4 Bd6 Rf7 B6e7 Kf4 Bg5+ Kg3 Bd3 Rd7 Rb4 Kg4 Bc4 Re7 Bh2 Nc6 Bd6 Ne5 Bc5 Re6 Bce3 Re7 Bd4 Nfd3+
3brbbn/rrb3RR/2b1p3/1n1BP1BQ/4RP2/4p1k1/N2Q2R1/Q1BK2N1 b - - 0 1 illegal: No proof kernel
B1nbRb2/2n2QB1/5N2/n2QRR2/K1pPBbbp/2P1b1kB/4r3/1N2rN2 b - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f4 dxe4 fxg5 Nh6 h4 Ba6 g4 Qd6 g6 Qf4 g7 Bb7 g5 Bc8 g6 Qg5 hxg5 Ng8 b4 Kd7 d3 Ke6 Kd2 Ke5 Kc3 a5 Kb3 h5 b6 f5 b5 c5 b7 h4 b6 e3 Ne2 f4 Nbc3 f3 Qd2 c4+ Ka4 f2 Ra2 Bg4 Ne4 Na6 b8N Nc7 N2c3 Kf4 b7 e5 Ng3 e4 Bh3 f1N Nb1 Ne7 g8Q Nc8 g7 Kf3 g6 e2 Rh2 e1B Nd7 e3 b8R e2 Nf6 Bf2 Bb2 e1B Qf7 Be3 g8B Kf4 Qd1 Nd2 g7 Nb3 Re2 B1d2 Nf1 Rh5 Re1 Re5 Bh7 Ra6 g8B Rae6 Be4 Re7 Ka3 a4 Rb5 R5e6 Re5 Na5 Bgh7 Bc1 Ba8 Bcd2 Ra1 Bc1 Kb4 a3 Ka4 a2 Qd2 Re8 Qg2 Bcd2 Qd5 Bc1 Be4 R6e7 Nh2 Kg3 Rf1 Bcd2 Rff5 Bf4 Bc3 Bde3 Nf1+ Kf2 Na3 Re6 Rc1 a1B Nb1 Bb2 Re1 Bbc1 Nh2 Kg3 Ba1 Bca3 Bd4 Bae7 c3 Bd8 Re2 Rb6 Re1 Rb2 Nf1+ Kf2 Bc5 Re2 d4 Bh6 Bf8 Re7 Nh2 Kg3 Bg7 Re6 Bh8 Bf8 Bg7 Re7 Nf1+ Kf2 Re6 Ra2+ Kb4 Bd2 Bh1 Rc2 B1g2 Rc1 R1e3 Re1 Ka4 Re8 Rd6 Re4 Re6 Bc1 Re8 Re5 Rd3 R5e2 Rde3 Bd2 R3e5 Be3 Nh2 Kg3 Bh1 Ne6 Be4 Nc7 Nf1+
nN3BQ1/kN1nR1P1/N2nNR1K/1rbR1r1p/1Qp3b1/2PB2b1/8/3Q1nn1 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 fxg4 h4 g3 Kd2 g4 Ke1 Qg5 hxg5 Kd8 Be3 Ke7 Bc1 Ke8 Kd2 Kd8 Ke3 h5 Kf4 c5 b4 Kc7 e4 Kb6 e6 a5 e5 d5 e7 a4 e8Q c4 g6 g2 Kg5 d4 f4 a3 f5 g3 f6 a2 e6 d3 e7 d2 c3 Rh6 g7 Na6 f7 Bg4 Nf3 g1B Bd3 g2 Nd4 Rb8 Ne6 Rh7 Na3 Bd4 Rf1 g1N Rf6 Kb7 b6 Nh6 Nb5 Rh8 Ba3 Be5 Nd6+ Ka8 b5 Nc7 b7+ Ka7 Qc8 Na8 e8R Nf5 Re7 Bg3 Rc1 a1N b6+ Ka6 Qc5 Nb3 Qb4 Nc5 Rb1 Nd7 Rb2 Ne3 Rb1 Rg8 Kh6 Nf1 Re8 Be7 f8Q Bf3 Qf7 Rf8 Qg8 Rf7 Ra1 Bf8 Re7 Bg4 Qe2 d1N Rb1 Nf2 Qd1 Ne4 Rb2 Rd8 Re2 Ng5 Re5 Ne4 Rd5 Rc8 Nf5 Rc5 b8N+ Kb7 Na6 Rb5 Nd6+ Kc6 b7 Kb6 b8N Ka7 Nb7 Nd6 Rg6 Rf5 Rf6 Nc8 Ref7 Bc5 Re7 Nd6 Qb2 Bd4 Ref7 Nc8 Bf8 Bc5 Qb4 Nd6 Re7
Nqb5/1R2k2N/4p2b/2QBBB1Q/1nr1P3/KR2b3/NPb1pQb1/b2n3N b - - 0 1 illegal: No possible last move
2R1Q2N/r1r3Q1/1b4bB/1b3pP1/1NbQn1BN/R2pQ3/1R3Pb1/3Knn1k b - - 0 1 legal: proof: e4 a5 d4 d5 h4 c5 dxc5 g5 hxg5 d4 b4 Qd5 exd5 axb4 c4 Kd7 g4 b5 a4 h5 g6 e5 c6+ Kd6 c7 h4 a5 b3 g5 h3 a6 b4 a7 h2 g7 e4 c5+ Ke5 c6 e3 d6 Ke4 d7 b2 d8N e2 Ra6 b3 Nh3 Kf3 Nf4 Ne7 g8Q Nd7 Ra4 Nf6 Na3 b1B Ng6 b2 Bh3 Ned5 Bg4+ Kg2 Nc2 Bc5 Nb4 Ne3 Ra3 Be6 c8Q Ne4 c7 Bd3 Qg7 b1B Bb2 Bec4 Qe6 Rh7 c8R Bb6 Qe7 f6 Nf7 Nf1 Nfh8 Bb5 Qe8 Bdc4 Qb3 Bc2 Qe3 B2d3 Qgg8 Rc7 Qg7 f5 Bc3 Bf7 Ba1 Bdc4 Qee5 d3 Q5d4 Rb8 a8Q Rbb7 Qa4 Ra7 Bb2 Ba6 Qe8 Bab5 Bc3 Nfd2 Rf1 h1B Nh4+ Kh2 Ba1 Bg6 Rg1 Bg2 Bb2 Ng3 Rf1 Nde4 Ba1 Nd6 Kd2 e1N Kd1 Nde4 Rg1 Nc2 Re1 Nf1 Re2 Ne1 Rb2 Kh1 Rc2 Nc5 Qdf4 Bcf7 Qgg8 Ra5 Bg7 Raa7 Qfd4 Ba2 Rb2 Bac4 Bh6 Ne4 Qgg7
2kQ3N/npr1QNQ1/BPb2K2/1N1p4/4r1RB/rnNR3R/P1n4b/5bn1 b - - 0 1 illegal: No proof kernel
rB2k2b/6n1/rnK2pRN/1NR4n/3B2r1/QR1QQ2R/p4PP1/1B1bb2r b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 c6 e4 Ba6 h4 gxh4 d4 Qb6 d6 Kd7 e5 Ke6 d7 Qc7 d5+ Kf5 Ke2 Bc8 Ke1 Qd6 exd6 Kf6 Kd2 a5 Kd3 e5 Kc4 h5 Kc5 e4 d8Q+ Ne7 b4 e3 d7 h3 d6 a4 b6 a3 b5 a2 b7 h4 b6 h2 Bd3 e2 Bh7 e1B Qe8 h3 d8Q Rg8 d7 Rg4 Nf3 Bg7 Ne5 Bh8 Na3 Ke6 Bh6 f6 Rc1 Ra6 Qf8 Nf5 Nf7 Ng7 Be3 Ra8 Qd2 Ra6 Rg1 h1N Nh6 h2 Nb5 Ng3 Bb1 h1R Bd4 N3h5 Rc3 Ra8 Rh3 Ra6 Qd3 Ra8 Qc7 Ra6 d8R Nd7+ Kc4 c5 b8B Bb7 Qf4 Bf3 b7 Bd1 Qc1 Ra8 Qca3 Ra6 Qg8+ Ke7 Kd5 Nb6+ Kc6 Ra8 Qgb3 Ra6 Rd5 Ke8 Rg5 c4 Rg6 c3 Rf1 c2 Qe3+ Ne6 Qc4 c1R Rg1 Bc3 Qcd3 Rc2 Re1 Rb2 Re2 Be1 Rc2 Rb4 Rc1 Rba4 Rc5 Ra8 Bbe5 Neg7 b8R+ Nc8 Nc3 R4a5 Rb3 Nb6 Nb5 R5a6 Bb8+
1N1QN1nk/2P3b1/Kp3Bp1/BR1n3B/3br1P1/4qQ2/nB1b3Q/Rb3n1R b - - 0 1 illegal: No proof kernel
N6b/2RPn3/k1r1nQp1/R2N2BB/1Kpr2n1/1nP1NR1n/bQ3n2/1Q4R1 b - - 0 1 legal: proof: g4 b5 h4 f5 gxf5 d5 e4 dxe4 a4 g6 axb5 Na6 h5 Qd4 h6 Qg7 hxg7 Nb8 d4 Kd8 Kd2 e5 Kc3 h5 b4 a5 f4 c5 f6 Kc7 d5 Kb7 f7 e3 f5 a4 f6 a3 d6 h4 b6 a2 b5 e2 Bg5 e1N Ne2 e4 Nd2 e3 Nc4 h3 Nf4 h2 Be2 Ng2 Bh5 e2 Nd5 e1N Qb1 Nc6 Rg1 h1N Nce3 Be6 d7 Nh6 g8R Bg7 Rc8 Nd3 f8R Ne7 Kc4 Rg8 f7 Bh8 c3 Ndf2 Kb3 Rb8 Ka4 Nh3 Rc7+ Ka8 b7+ Ka7 b6+ Ka6 Kb3 Ng4 Ka3 Re8 b8Q Ngf4 b7 N1f2 Ka4 Rc8 Kb3 Rg7 Ka4 Rh7 Ka3 c4 Kb4 Bf5 Qb2 Ne6 Qb1 Re8 Qd8 Bc2 b8Q Bb3 Qb2 Nc8 Qf6 Ne7 Rg8 Rc8 f8N Rh6 Rg7 Rh7 Rf7 Rh6 Rb7 Rc6 Rc7 Nc5 Ne6 Rh7 Nef4 Ne6 Nb6 Rh6 Na8 Rh7 Rad1 a1N Nfd5 Ba2 Rdf1 Nb3 Rf8 Ne4 Rf3 Nef2 Rfc8 Rd6 Rc5 Rc6 Rc7 Rf7 Qf5 Rf8 Qfb1 Rf5 Qf8 Rf4 Qf6 Rd4 Ra5+
4Qr2/1BnR1b2/1pRr1pb1/1k2QN1n/1P1b4/1BP2n2/2N4B/1QnKRb1Q b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 fxe5 b6 d4 cxd4 a4 Qe7 a5 Qe6 a6 Qc6 Bh3 Rh6 Bf1 Qb7 axb7 Rh8 b4 a5 e4 d5 h4 Kd7 h6 Kc6 h5 g5 e6 d3 c3 a4 e7 d4 e8R d2+ Ke2 a3 e5 g4 e6 g3 h7 g2 e7 a2 h6 Bf5 Rc8+ Kb5 Rc6 Bg6 e8B Bc5 Nf3 Nf6 Nh4 Na6 b8Q Nh5 Nf5 f6 Bf7 Rf8 h8Q Nc7 h7 Ra7 Qc2 d1B+ Kd2+ d3 Bb3 g1N Bg2 Bd4 Na3+ Ka6 Qb2 Be2 Qb1 Bf1 Nc2 Kb5 Kd1 Nf3 Bf4 d2 Bh2 Ra8 Qe8 Rd8 Qg8 Rd6 h8Q Bf7 Rg1 Bg6 Bh1 Bf7 Rg7 Bg6 Qge6 Bf7 Qc1 Bg6 Rb1 a1N Rd7 Bf7 Ba2 Nb3 Qe5+ Rd5 Qb2 Nc1 Bb3 Bg6 Ra1 Bf7 Qb1 Bg6 Qg3 Rd6 Qge5+ Bc5 Qg8 Bh7 Qg2 Ne2 Qb2 Bg6 Rc1 Nh4 Qb1 Bf7 Qg1 Bg6 Be4 Bf7 Qh1 Nf3 Bed5 Bd4 Rc4 Bg6 Bb7+ Nd5 Qe3 Nc7 Rc6 Bf7 Na1 Bg6 Kc2 Bf7 Re1 Nc1 Bd5 Bg6 Q3e5 d1B+ Kb2 Bde2 Kc2 Bd3+ Kd1 Be4 Bb3+ Bd5 Q5e7 Be6 Nc2 Bef7 Qe5+
N2b2Q1/1Q4B1/Nr3qkN/K1p1n1P1/Rn1N1r1B/n1PbR3/1b1p3p/1R4Q1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bf8 hxg5 f5 e4 Kf7 e6+ Ke7 e5 Ke8 Bd3 Ke7 Be4 fxe4 Rh5 Ke8 Rh6 Ne7 Rh1 Ng8 Kd2 a5 Kc3 h5 b4 d5 g4 e3 f4 e2 g6 e1B+ Nd2 a4 g7 c6 f5 a3 b6 a2 f6 h4 b7 h3 b5 h2 b6 Rh5 e7 Kf7 Kb4 d4 c3 d3 e6+ Kg6 f7 Rd5 Nc4 Kh7 Bg5 d2 Nf3 Ra6 Bh4 Qc7 Nd4 Nf6 g8N Nbd7 b8Q Kg6 b7 Qe5 Nh6 Rb6+ Ka4 Rdb5 e8R Ba3 f8B c5 e7 Rb4+ Ka5 Bb2 Bg7 Nd5 g5 Bg3 Qa7 Qf6 b8N Ba6 Qg1 Bc7 Qb7 Bd8 Rb1 Bb5 Na6 Ne5 Ra1 Rc6+ Nb6 Bd3 Rb1 Rc4 Ra1 Nb4 Rb1 Bc7 Ra8 a1N Ra7 Nac2 e8Q+ Kh7 Qea8 Na3 Qg8+ Kg6 Re1 Bd8 Re3 Be7 Na8 Rb6 Qf2 Bd8 Rb1 Qf5 Qg1 Qf6 Nc2 Rg4 Nd4 Rf4 N6c7 Nac4+ Ka4 Rc6 Kb5 Rd6 Ra4 Na3+ Ka5 Rb6 Na6
n2b1Q2/rb6/1B5Q/1pR1bR1Q/PP5p/kQ2nq1r/3pRn1N/B4BKN b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 cxd4 h4 g5 hxg5 Qc7 Nf3 Qb6 Ng1 Qd8 Nc3 a6 Nb5 Bg7 Na7 Bh6 Bxa6 Bg7 Bf1 Bf8 f4 h5 Kf2 e5 b4 Ke7 c4 Kd6 a4 b5 g4 e4 c5+ Kd5 f6 d6 f5 d3 f7 Kc4 g6 h4 g7 d5 c6 d4 g5 Qe7 g6 Ba6 c7 Bb7 c8R+ Bc6 f6 Qb7 Nh3 e3+ Kg1 e2 Nf2 e1B Ra2 Na6 Qh5 Kb3 Re2 d2 Bb2 d1N Ba1 Nh6 g8Q d3 g7 d2 Qh7 Ng4 g8Q Ka3 Q7h6 Be7 f8B Bd8 f7 Nde3 Bc5 Nc7 f8Q Rh7 Qc4 Rd7 Bb6 Rd3 Qcg8 Bf3 Nc6 Ra7 Ne5 Na8 Rc5 Bg2 Rh2 Qf3 Nh1 Bg3 Qgf7 Nf2 Ng4 Bgc7 Rh3 Be5 Nh2 Qf6 Rg3 Bb7 Rg5 Qf3 Qc4 Rd4 Rf5 Rg4+ Bg2 Rg3 Qcf7 Rh3 Bf1 Ra5 Q7g8 Ra7 Qb3+
2b1BNnn/r2bQ3/2k1N1r1/1pb1N1pR/2Q3n1/1PR2K1R/p5PR/4BQ1q b - - 0 1 legal: proof: f4 d5 h4 b5 c4 e5 cxd5 exf4 a4 g5 h5 Qd6 a5 Qb6 axb6 a5 b7 Ra7 Nh3 Ra6 Ng1 Rg6 hxg6 Bh3 Rh2 Be6 Rh1 Bc8 Kf2 Kd7 e4 c5 d4 h5 g7 f5 d6 f3 e5 h4 d5 a4 e6+ Ke8 e7 Kd7 e8R a3 b3 f4 Rh2 h3 Bd2 c4 Bd3 a2 Nc3 Rh4 Ne4 c3 Rc1 c2 Qf1 Rh6 Be1 Nc6 b8R Nce7 Rb6 Nf6 g8Q Ng6 Re5 Nh8 Nc5+ Kd8 d7 Kc7 d8N Rg6 Qe6 Ng8 Nd7 Ba3 Re3 Bc5 Nf8 Bd7 Rd1 c1R Rd2 Rc4 Rc2 Ra4 Rc3 Ra7 Qe4 Bc8 Qc4 Bd7 Re6 Bc8 d6+ Kb6 Rh1 h2 d7+ Kc7 Re4 Kd6 Nde6 Kc6 d8Q Bd7 Qe7 Bc8 Qe2 Bd7 Kf1 f2 Nf3 Bc8 Qd1 Bd7 Ke2 f1B+ Kf2 Be2 Bb1 Bd3 Rd4 Bf5 Ne5+ Kb6 Be4 f3 Bc6 Bc8 Kg3 f2 Be8 f1N+ Kf3 Bd7 Red3 Ne3 Rh4 Ng4 Rh5 Kb7 Qe2 Kb6 Qf1 Bc8 Nc7 Bfd7 Nce6 Kb7 Rg1 h1Q Re3 Qh2 Rh1 Qg1 R1h2 Qh1 Ke4 Kb6 Reh3 Kb7 Kf3 Kb6 Nf7 Kc6 Ne5+
1RQn1brN/2RBN1N1/b1N1b3/pQ1QP1Bn/p7/1pKP3B/8/nk3r1q b - - 0 1 illegal: Other
4rN1b/B2NQ1Rn/6K1/pP2B1p1/1bq1P1rr/1Q1p1R1b/2B2Q1R/2Rnk3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 e4 f5 c4 a5 b4 d4 h4 g6 h5 g3 c6 g2 c5 Qd5 Kg5 f4 b6 f3 c7 f2 b5 Qc6 b7 Bd7 c8R Bd6 h6 Qd5 h7 Nh6 c6 Bc5 c7 Qb3 Nc3 Bc6 Nge2 g1B Rh2 Rf8 h8Q Bb4 Be3 Rf7 Rg8 Bd7 c8R Nf5 Nd5 Rh7 Rcf8 Qc4 Rg7 Rh4 Nf6 d3 Qb3 Bc8 Ba7 Ne3 Rc1 Nd7 b8B Nd1 Rff7 Nf8 Nd7 Rg4+ Kh6 g5 Rf3 Nh7 Qf8 Rh4+ Kg6 Rg4 Bh3 f1R Qc5 Be3 Qd4 Bed2 Qf2 Bdc3 Bg2 Rg1 Bh1 Rf4 Bd6 Rgg4 Bdb8 Rf7 Nd4+ Ke7 e6 Rg3 Nb6 Nb2 Rg8 Rf4 Re3 Rh4 Bf3 Bd7 Bd1 Rg2 Ne2 Bh8 Bc2 Nd1 Be5 Rb8 Nf4 Bc8 Bb2 Kd6 e7 Kc5 e8Q Bh3 Rg7 Rgg4 Qf7 Re8 Ne6+ Kd6 Nf8 Kc5 Ba3 Kd4 Qe7 Bd2 Bd6 Bb4 Qa2 Kc3 Rf3 Bf1 Nbd7 Bg2 Qg3 Kd2 Be5 Ke2 Qb3 Kd2 Bf2 Bh3 Qg2 Ke2 Ba7+ Ke1 Qf2#
rBB2R2/q3QN2/3n1pn1/k1Pnbb2/3p1P2/5N1r/N3p2R/R2RQrQK b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 Bb7 gxh5 Bc8 exd5 c5 d4 cxd4 c4 Kd7 b4 Kc7 h4 Kb6 d6 a5 h6 e5 c5+ Kb7 b6 g5 d7 e4 b5 e3 h5 a4 h7 g4 h6 g3 Nf3 e2 Bh3 g2 Nc3 g1N Bf4 f6 Na2 Qc7 d8Q a3 Qe7 Nc6 Be5 Kb8 b7 Ka7 b8R Qd7 b6+ Ka6 b7 Ka5 Qb1 Nd8 Bg4 Ra6 Ra8 Qa4 b8Q Nf7 Q8b7 Qd7 Bb8 Nh3 Qg6 Qa4 Qbb1 Nd6 Be6 Bd7 Qg1 Nf4 Bh3 Ng6 Qd1 Be8 Bc8 Bd7 Rh2 Be6 Ra7 Bh3 Rb7 Bf5 Rbb1 Ra8 Qd2+ Qb4 Rd1 Qc3 Nh4 Qb4 f4 Qc3 Kf2 Qb4 Qd7 N8e7 Kg2 Nd5 Kh1 Be7 Qc1 Qb7 Nf3 Qa7 Qe8 Bd8 Qe7 Bc7 Qb1 Ne4 Qc1 Be5 Qb1 Nd6 Qc1 Rd8 h8N Re8 Nf7 Rh8 Nb4 a2 h7 Rg8 h8R Re8 Rb1 a1R Na2 Rd8 Rf8 Rd7 Rd2 Rb7 Qce1 Rb3 Rbb2 Rc1 Rb1 Ra3 Ra1 Rb1 Qeg3 Rf1 Rdd1 Rd3 Qe1+ Rc3 Nd2 Rh3 Nf3+
3R4/BbK1NQ1n/5pNQ/1P1Rp3/R1QB1n2/1Pp3r1/2Brn1kB/q1r1b3 b - - 0 1 illegal: No proof kernel
Q2r4/BBknK2R/3NP2N/PbQb1B2/3Qpbq1/3rR1p1/RQn1p3/6n1 b - - 0 1 illegal: No proof kernel
2RR2N1/5q2/r1P1N1r1/pr2BpbP/1QKN4/Q3R3/Q1R2bbp/1B2knn1 b - - 0 1 illegal: No proof kernel
B3R1b1/2q1N3/1BPp1k2/1pbB1PR1/3QK1N1/BR1rb1rp/NQr5/1n4n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 Ke3 b5 g4 h5 c4 e5 f4 b3 a4 e4 f6 h4 c6 h3 g6+ Ke6 a5 b2 c7 Ba3 g7 Ra6 f5+ Ke5 g5 Rh4 c5 Nh6 g8N Rd6 a6 Nf7 c6 Qe7 a7 Nh8 a8B Na6 f7 Nb4 f8B Nf7 g6 Rg4 g7 Ng5 Nc3 b1R Bc4 Nf3 Na2 Rg3 Bd5 Rb2 Rb1 Rc2 Rb3 Qf7 Ne7 Kf6 Kf4 e3 g8R e2 Be3 e1B Ke4 Bd2 Bb6 Be3 Rg5 Qg7 Rh2 Qh7 Re2 Qf7 Be6 Nd5 Qb1 Bac5 Qb2+ Nd4 Nf3 Nc3+ Kd3 Nb1 Bd5 Qh7 Ne5 Nf3 Ke4 Ng1 Re1 Bb7 c8Q Ba6 Qc7 Bc8 Qa7 Qg7 Be6 Rd3 Bd5 Qh7 N7g6 Qe7 Qa4 Qd8 Qad4 Qc7 Bd6 Ba3 Bb4 d6 Ne7 Be6 B4c5 Bb4 Re2 Be1 Ba3 Bb4 Rg8 Bc5 Re8 Rg7 Rg2 Bg8 Rg5 Rg6 Rh5 Rgg2 Rg5 Rg3 Ng4+
b1N1Q3/3bB1b1/1PB2nK1/p4NR1/3q1p2/Q2rkP1B/nNB4p/rnR4Q b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 c4 h5 g4 f6 f3 h3 c6 d6 b6 h2 g5 h4 g6 h3 g7 Bb7 c5 Ra7 Ba3 Ba6 c7 Nd7 c8N Bc4 c6 Ne7 c7 Nc6 Nd2 Nb4 Rc1 d5+ Kf4 f5 e4 d4 Bd3 Rh5 Bc2 d3 Ne2 Na2 Rg1 h1B Ng3 Bg2 Be7 Bd5 Nc4 d2 Nb2 Ba8 Qf1 Rh7 Kg5 d1N Kg6 f4 Nf5 Nf6 Qe1 Bf1 Rg5 Bb5 Qh1 h2 g8Q+ Rf7 Bb4 Bg7 Be7 Qd4 Qe8 Ndc3 Qf8 Kd7 e6+ Kc6 e5 Kd5 Bd8 Rb7 e7 Nb1 e8Q Bd7 Qa3 Re7 e6 Ke5 Qh8 Re8 e7 Rg8 e8B Rb8 Na7 Rc8 Be7 Rd8 c8B Kd5 Bf7+ Ke5 Bc4 Rge8 Bb5 Kd5 Bd6 Re1 Be7 Rf1 Qe8 Rg1 Nd1 Re1 Bc6+ Kc4 Bb3+ Kd3 Nb2+ Ke2 Bc2 Kf2 Ba6 Rd1 Bf1 Rd3 Nh4 Ke3 Bh3 Rc8 Bb5 Rc4 Bc6 Ra4 Nc8 Nac3 Qc5 Ra1 Qa3 Na2 Nf5+
1N5N/q1nR1B1Q/p2nbrRR/1b2bpN1/1pPr2P1/3B1r2/k1KQ4/3R2B1 b - - 0 1 illegal: No proof kernel
Q2N1nR1/1N4N1/p3nr2/2pn4/Kb1kR3/1QpB1RP1/2bN1P1r/1rB3Qq b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 d4 Kd7 Kd2 Kd6 Kc3 Kd5 Kb4 e5+ Ka4 h5 b4 c5 g3 a6 b6 e4 f6 h4 g6 e3 b7 h3 g7 h2 b5 e2 f7 e1N b6 Bh3 Na3 Nh6 g8R Bd7+ Nb5 Ng4 Nf3 Bf5 Nd6 Bg7 f8N Nd7 b8Q Nc2 b7 Ngf6 Ne6 Nf8 Bd3 Bg6 Rf1 h1R Nd2 R8h2 Re1 Qb6 Qd8 Qb1 b8Q Ra7 Ra2 Rf7 Re4 Bh6 Qg1 Bf4 Nb3 Bd2 Ng7 Bb4 Nd2 c3 Nb7+ N6d7 Re3 Ne6 Rf3 Rf6 Qb6 Ne3 Qa8 Ndf8 Rb2 Ba3 Rb4 Bh7 Rc4 Bf5 Qb3 Bb4 Bf1 Bc2 Bd3 Kc6 Na5+ Kd6 d5 Ke5 d6 Nd5 d7 Qa1+ Ba3 Qb1 d8N Qe1 Rh4 Qe4 Nab7 Kd4 Qg2 Rb1 Bc1 Rf7 Qg1 Rf6 Rh5 Qh7 Re5 Qh3 Re1 Qg2 Ree3 Qh1 Re4#
b1Q2r2/1Nr3kp/RBnRK2p/1QQ2R2/R1n2pN1/qr1P1b1P/8/2N1B1b1 b - - 0 1 illegal: Other
1nn1R1BQ/1N2r1P1/1n2R2N/1Q3p2/6b1/B2B1PKp/q3brQp/Nk3Br1 b - - 0 1 illegal: No possible last move
3k2r1/nBQ1N1PN/B2Kb3/2p3Q1/nQ1b4/1rBpq1RR/N1Pp1rB1/3n4 b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 g5 hxg5 Nf6 g6 Bg7 g4 Nc6 d4 exd4 f4 Ng8 f5 Bf8 g7 Qf6 g5 Qg6 fxg6 Nb8 Kd2 f5 Kd3 c5 Kc4 a5 Kd5 h5 b4 d3 e4 f4 b6 f3 e5 d6 b5 a4 e6 d2 b7 h4 e7 h3 b6 f2 Bg2 f1Q Bb2 h2 Nf3 a3 Bc3 Na6 b8Q a2 b7 Qe1 Qc7 Qg1 b8Q Rh3 Qb4 Qe3 Qg1 Nf6+ Kc6 d5 g8N d4 g7 d3 g6 Nd5 Ng5 Rf3 Nh7 Rf2 Kd6 Nb6 Bb7 Be6 Qg5 Na4 Qc6+ Bd7 Rg1 h1N Rg3 Nc7 Nh6 Qf3 g8B Bg7 Bd5 Qe3 Bg2 Bd4 g7 Rc8 Nf5 Nb5+ Kd5 Na7 Kd6 Rf4 Rh3 Nf2 Ba6 Nd1 Rg3 Rf2 Rh3 Kf7 e8B+ Kg8 Bh5 Be6 Bhf3 Kf7 Ne7 Rg8 Bb2 Nb6 Nc3 Na4 Rb1 a1R Na2 Bd7 Be4 Ke8 Bc3 Kd8 Rg3 Be6 Bd5 Ndb2 Rh1 Rb1 Rhh3 Nd1 Qcb5 Rgf8 Bdb7 Rb3 Qc6 Rg8 Qc7+
2K5/3nRPB1/1Np4N/PN6/1NBbQ1b1/q1b5/Q1nrppr1/RQr2B1k b - - 0 1 illegal: No proof kernel
1q2Nk2/2Q1bp2/1Br2R2/6Pb/K1Pn2n1/5N1p/B1pRr1R1/Nb1nRQB1 b - - 0 1 illegal: No proof kernel
N1BBQr1n/5p2/nRQ4Q/2P1rn2/1P1k1p2/N1N1p3/1b2r1B1/qb3NKR b - - 0 1 illegal: No proof kernel
n3b3/N1nR1p2/pB4Np/3QB1r1/RR1B3r/P2Nr2B/3kb2P/qQ1b3K b - - 0 1 legal: proof: e4 d5 exd5 c5 f4 g5 b4 gxf4 bxc5 Bh3 Qe2 Be6 Qd1 Bc8 c3 b5 Qf3 b4 Qg3 b3 Qf3 Bg7 Qg4 Be5 Qd1 Bc7 Ba6 Ba5 Bf1 Bb4 cxb4 Qd6 Qg4 Qb6 Qd1 Qd8 Kf2 Kd7 g4 e5 Kg2 e4 d4 b2 b5 a6 c6+ Kd6 c7 e3 b6 h6 g5 e2 b7 e1R g6 Rh7 g7 Re5 Nh3 Qf6 Be3 Qh4 Nc3 b1B Nf2 Nc6 b8B Nf6 g8Q Ne7 Qd8+ Nd7 Ne2 Rh5 Nd3 Bc2 Qb1 f3+ Kg1 Ba4 Bh3 Qf6 Nef4 Bd1 Ng6 f2+ Kg2 Qe5 Re1 f1B+ Kh1 Ra7 Bg1 Rg5 Re4 Rg7 a3 Rg8 Ra2 Bb7 Rb2 Bc6 Rb4 Bfe2 Bf2 Rg4 Be3 Rh4 Rf4 Nf5 Qg5 Nb6 c8N+ Kd7 Re4 Na8 d6 Ke6 d7 Kd5 d8B Re7 Na7 Nd6 Bb6 Nb5 Qg2 Qh8 Be5 Nbc7 Ra4 Be8 Rg4+ Ke6 d5+ Kf5 d6 Qg7 d7 Re6 Bg3 Qa1 Bed4 Re3 d8R Rg7 Rd7 Rg8 Qc6 Rg7 Ngf4 Rg5 Qcb5+ Ke4 Ng6+ Kf3 Bf4 Ke4 Bfe5+ Kf3 Nc1 Kf2 Qd5 Ke1 Nd3+ Kd2 Bb2 Ne6 Rgb4 Nec7 B2d4
B4NN1/1b1bP1pp/3K1n1k/R3R2p/4q1r1/1R1P1n1Q/1bNr4/R1BQ2rQ b - - 0 1 illegal: Other
k1rr2R1/bn1PK2p/Q2B2pB/3RB3/q1rP1nQn/3B2Np/8/1QNbN3 b - - 0 1 illegal: Other
K2B4/1QRp1NrQ/1NQ2k2/RP1br1N1/2n2B2/2pqnn2/R2P3p/4bQb1 b - - 0 1 illegal: No possible last move
br2BR1K/1np2PQ1/pBR5/2N3nN/RbR1BPq1/Q2b2N1/1r1pr3/2k5 b - - 0 1 illegal: No proof kernel
Nb5n/R1pp3q/2N1NP2/2rP3B/RKQp3k/3brB1B/2QN1R1b/n6r b - - 0 1 illegal: No proof kernel
QnN3n1/1P1RNp2/3qrp1B/3Nr2Q/R2PB3/5prn/1NKbb2k/4Q1R1 b - - 0 1 illegal: Other
3brNK1/P1NB3B/1N5R/p1r1pr1p/3B1Q1B/4bRnq/PnR2b2/k4Q2 b - - 0 1 legal: proof: e4 f5 b4 fxe4 h4 a5 c4 g5 hxg5 d5 cxd5 b6 b5 Ba6 bxa6 Bh6 Nc3 Bg7 Nb1 Bf8 Ke2 Kd7 Ke3 Kd6 Kd4 e3 g4 h6 f4 c6 g6 e6 f5 e2 a7 e1B g5 b5 f6 b4 f7 b3 g7 b2 g6 Qe7 Nf3 Qc7 Bh3 Nf6 g8B Nfd7 g7 Nc5 Ng5 Nca6 Na3 b1R Bb2 Nd7 Bh7 Ne5 g8R Be7 Rc8 Qd7 f8N c5+ Ke4 c4 d4 Bf2 Qf1 c3 B3f5 Bd8 Nc4+ Ke7 d6+ Kf6 d5 c2 Bd4 c1B Nb6 Bce3 Rc2 Rb5 Bg4 Qc8 d7 Rc5 d6 Rg8 Rh3 h5 Rd1 Rg6 Bf5 Rg7 Rf3 Rf7 Rd3 Nb8 Rb3 Nc6 Rb4 Ne7 Rb5 Bc7 d8Q Qd7 Qb8 Bd8 Bg4+ Nf5 Qc7 Qc8 d7 Rb8 Ba1 Ra8 Rbb2 Nc4 Qf4 e5 Nge6 Rb8 Rb5 Nb2 Nc7 Ke7 Rb3 Kd6 Bh3 Nc4 Bd4 Nb2 Rg3 Rf6 Rg6 Kc6 Rh6 Ng3+ Kf3 Kd6 Be6 Rf5 Rd3 Bg5 d8B Qd7 Bf6 Re8 Rdc3 Qa4 Bd7 Qb3 Rd3 Qe6 Bh8 Be7 Bf6 Bd8 Bh4 Rb5 Bc3+ Kc5 Bd4+ Kb4 Rdc3 Rc5 Rd3 Nh1 Ke4 Qb3 Rdc3 Ka3 Rd3 Rc4 Kd5 Ng3 Rdc3 Rc5+ Kd6 Bc1 Rf3 Bce3 Qb5 Qd3 Qc4 Qf1 Qf7 Qh3 Qf6 Be7+ Ke6 Bd8+ Kf7 Nd3 Rc3+ Kb2 Kg8 Ka1 Rc2+ Nb2 Qf7 Be1 Qc4 B1f2 Qf1+
1K2nr1N/p1PQ3R/1R1p2b1/2r2Q1P/B7/N1p1B1nq/QbQn3r/1B3R1k b - - 0 1 illegal: No proof kernel
2rr1NKR/pRpn2R1/Rb4B1/PnpN3P/Nn4bB/4Q3/bq1Q3k/B7 b - - 0 1 legal: proof: e4 e5 d4 f5 exf5 h5 dxe5 h4 c4 b6 c5 bxc5 g3 Rh6 gxh4 Rh7 h5 Rh8 Ke2 Ke7 Ke3 d5 Kf4 g6 Kg5 d4 b4 d3 h4 d2 f4 Nh6 a4 Kd7+ f6 Ke6 f5+ Kd5 e6 Ke4 e7 Na6 e8Q+ Be7 b5 Ng8 b6 Bb7 h6 Ke3 h5 Kf2 h7 Kg3 Nc3 Qd7 Bd3 Bc8 b7 Bf8 b8R Qb5 f7 Bb7 f6 Nb4 Nh3 Bg7 f8B Bd5 f7 Ba2 Bb2 Nf6 Be7 Nd7 Rb7 Rc8 Rg1+ Kh2 f8N Rg8 Qe1 d1B h8R Bg4 Nf4 Bf6+ Kh6 g5 Kh7 Rd8 Nb1 Bc3 Bg6 Qe2 Nd5 Qc2 Ba3 Qb2 Qc1 Be1 Nbc3 Bd2 Bf6 Be1 Qee3 Rc8 Ne6 Rgd8 Qcd2+ Be2 Rb6 g4 Qh6 g3 Qdf4 Bac4 Bh4 Qd2 Bb2 Nc2 Bf5 Bf3 Rb1 Ba2 Ba1 Qc1 Qb4 g2 Nf8 Qa3 Rb3 Qb2 Qe3 Be2 Ra6 Bd1 Rf1 g1N Kg8 Ne2 Rg1 Ned4 Rg7 Bg4 Bg6 Bd2 Qa5 Be1 Rb7 Nb5 Nb1 Bc3 Qb4 Bd2 Qbd4 Ba5 Nc3 Bb6 a5 Nb4 Na4 Kh1 Qd1+ Kh2 Qdd2+
1B1n2Q1/B1r5/b1r1q1B1/nQ2RB2/ppqNNk2/bP1P4/R4Np1/Kn5Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 b4 Nh3 Qd7 Ng1 Qb5 axb5 Rh6 Qb3 Rh7 Qd1 Rh8 e4 Kd7 h4 Kd6 h6 Ke5 h7 a5 h5 g5 d3 c5 Kd2 f5 Kc2 a4 h6 c4 b3 g4 Kb2 g3 b6 f3 d6 f4 d7 f2 d8N f3 b7 Bd6 Ne6 Ra7 Nc3 Ne7 Ra2 Nbc6 b8B Ba6 Bh3 f1Q Ka1 f2 Bf5 g2 Nd4 Nd8 Rh5 Qe2 Be3 f1N Nh3 Rc7 Nf2 Nd2 Qh1 Nb1 Rg5 Rf8 h8Q+ Rf6 h7 Nec6 Qg8 Na5 h8Q Be7 Qh8h7 Rc6 Qhg7+ Bf6 Qd7 Rc5 Qb5 Qe1 Nce2 c3 Ng3 c2 Rh5 c1Q Rg5 Qc4 Rh5 Kd6 e5+ Ke7 e6 Kd6 e7 Ke5 e8B Bg7 Qb7 Rc6 Beg6 Bh8 Nge4 Bg7 Bd2 Qe2 Bc3 Kf4 Qb5 Qe1 Nc2 Qe2 Bd4 Bh6 Bda7 Qe3 Nd2 Qee6 Nde4 Bg7+ Rb2 Bc3 Nd4 Bd2 Ra2 Bc1 Bh3 Ba3 Re5 Rg7 Bg4 Rgc7 B4f5
3R4/2q2nQk/QrRbQR2/N3r2p/1p1BP1N1/p1nb4/2NQBP1q/2K3b1 b - - 0 1 illegal: No proof kernel
2bB1b1r/1Q1kB1r1/1R3q1n/Q2KPR1B/Pq3pN1/p1R4n/2p1q1R1/2N4Q b - - 0 1 illegal: No proof kernel
qBRb4/5QQN/1k2NrnQ/1qPb1P2/7q/n2pBBpQ/4r2p/1NK1R3 b - - 0 1 illegal: No possible last move, all moves rejected
1R2bRQ1/1nNrr1n1/1qB1q3/bP4PB/3q2p1/k3N1BQ/p2p1K2/2NQ3B b - - 0 1 illegal: No proof kernel
7r/1RBNQ3/bBQN3B/1pK2Q2/k3pq1P/P4pbr/qrB4n/N3n1R1 b - - 0 1 illegal: No proof kernel
1B5Q/b2B2q1/rqR5/1pN2bp1/2N3nP/2R2KpB/3P2RN/Q1nrkb1R b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 Kf2 Kd7 a4 b5 h4 c5 e4 g5 d6 Kc6 a6 f5 e6 g3+ Kf3 c4 e5 Kd5 a5 Kd4 a7 c3 e7 c2 e8R f4 d7 Bg7 e6 Qe7 d8N Qc7 e7 Rh7 a6 Rh6 Bh3 Kd3 Ne6 Bd4 Bb2 c1Q Na3 Q1c5 Rc1 Nf6 Nc4 Q5b6 Ba1 Bf2 Be5 Nbd7 Rc2 Nc5 Qa1 Qd7 Bb8 Nb3 Rf8 Qdd4 e8B Ng4 Bd7 Nc1 Rf5 Qc3 Re5 Bc5 Re2 Qg7 Rg2 Bd4 Nd6 Rg6 Rc6 Bc5 Nc4 Kc2 Rf2 Kd1 Rg2 Be3 Nc5 Ke1 Ne2+ Bg1 Nd4 Rf6 Nf5 Rd6 Nfe3 Rg6 Nf1 Bf2 Ke4 f3 Nh2+ Bg1 Be5 f2 Kf3 f1B Bd6 Rb8 a8Q Rb7 a7 Rc7 Qb8 Be3 a8R Ra7 Be8 Bf5 Bd7 Rf6 Qh8 Ra6 Rg8 Re6 Bb8 Re4 Na5 Rb4 Rgc8 Rb1 Nc4 Qe7 Ne4 Na2 Ncd6 Qa5 Re8 Qg7 Re5 Rd1 Rec5 Nc1 Rc3 Ba7 Nc5 Qb6 Nc4
3R4/R2rqr1b/2B2N1p/n1bQRk1P/5n2/5pP1/QBpN1nN1/KQ2q1R1 b - - 0 1 illegal: No possible last move, all moves rejected
B1q1B2R/2Q1NrrR/Rb1QP1pN/npBn2k1/2b3P1/1N1pB3/K7/b2q4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 e5 fxe5 c5 bxa5 h4 d4 Ra7 dxc5 Ra6 Qd3 Ra8 Qg3 hxg3 Kd2 Ke7 Kc3 d5 Kb3 b5 h4 f5 e4 f4 a4 f3 c4 d4 e6 Kf6 e5+ Kg6 a6 f2 c6 g2 a5 d3 e7 Qd7 e8B+ Qf7 h5+ Kh7 e6 g6 c7 Nc6 h6 Rb8 a7 Bd7 c8Q Bg7 a8R Bc3 a6 Nb4 c5 Nc2 c6 Nf6 a7 Rf8 c7 Bc6 Nf3 g1B Nh4 Na3 Nf5 Ba5 Nd2 Bb4 Bg2 f1Q Ka2 Bb6 Nb3 Be4 Be3 Qg8 Qd7+ Be7 c8N Nc4 Qd6 Rb7 Rh5 Bed8 Nce7 Nd5 Rc8 Rd7 a8Q Rf7 Qab8 Qd1 Qbc7 Na5 Ra8 Bd4 Ra6 Bb2 Rc1 Ba1 Rc4 Kh8 h7 Qf8 Nh6 Kg7 Bf3 Kf6 h8B+ Rg7 Rh4 Qg8 Bc5 Kg5 Rc2 Rf7 Bhd4 Qf8 Rch2 Qg8 Qb7 Bb6 Qbc7 Rg7 Nef5 Rdf7 Ne7 Nf4 R4h3 Bd5 Be3 Bc4 Ba8 Qf8 Nhf5 Qg8 Rh8 Qf8 R2h7 Qg8 Bg1 Nd5 Nh6 Qf8 Bec6 Qb8 Be8 Qc8 Bge3+
1B3r2/b1R2B1b/1N1Qp2Q/K3n1P1/4nbQN/4pqP1/R3pNB1/2kq1Br1 b - - 0 1 illegal: Other
K3R3/R1rq2bB/nB1PNr2/2N4k/2QQP1Bp/1pp5/2b2NN1/1n1n2qQ b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 b5 Ke3 c5 Ke4 h5 a4 c4 d4 h4 g4 b3 e6 b2 g6 b4 e7 f6 g5 c3 g7 Kf7 e8N Kg6 a5 b3 d6 f5+ Kd5 f4 d7 f3 a6 f2 a7 Ba3 Nd6 Bb4 Ne4 Ba6 Bh3 f1N Be3 Be7 Nf2 Qf8 d8N Rh7 Nf3 Bf6 Ne6 Bc8 Bg4 Qa3 Ne1 Ba6 Ng2 Nh2 Nd2 b1Q Re1 Nf1 Nde4 Be7 N4c5 Nh6 g8B Bd3 Ra2 Na6 Kc6 Qac1 Kb7 Rf8 a8Q Bc2 d5 Nd2 d6 Nf5 Qa7 Bd8+ Ka8 Rc7 Bd4 Rf6 Bh7+ Kf7 Qb6 Ne3 Ra3 Be7 Ra2 Bf8 g6+ Ke8 g7 Kf7 Qc6 Qa1 Ra5 Nb1 Qe4 Qa4 g8Q+ Ke8 Qh8 Kf7 Qdd3 Nd1 Qc4 Qd7 e3 Nb8 Ra7 Na6 Qf3 Bh6 Qh3 Bg7 Qh1 Nb4 Na4 Na6 Bb6 Qd2 Re2 Qe1 Nac5 Qg1 Bg8+ Kg6 Bh7+ Kh6 Re1 Bf8 Re2 Rf3 Qhd4 Bg7 e4 Rf6 Re3 Qe7 Rg3 Qd7 Rf3 Rg6 Rf8 Rf6 Bgf5 Kh5 Re8 Qh2 Bh3 Qg1 Bg4+
1NRNq3/Q1r4B/1qnp1QR1/3p4/3bbP2/Bp2nR1K/1BQ1RP1b/k3r3 b - - 0 1 legal: proof: g4 f5 b4 a5 bxa5 h5 gxh5 f4 d4 c6 e3 Kf7 exf4 Ke8 d5 cxd5 c4 Kf7 a4 Kf6 h4 b5 a6 g5 c5 e5 h6 g4 a5 d6 a7 e4 c6 g3 h5 e3 h7 e2 c7 g2 h6 b4 a6 b3 Ra2 Ke6 Nd2 Qh4 Nc4 Qg4 Nh3 g1Q Na5 Qh5 Qc2 Qe8 Nc6 Be7 Ng5+ Kf6 Rh4 Qg3 Rh3 Bf5 c8R Qe3 Rf3 Be4 Nf7 Qb6 Nfd8 Kf5 Bg2 Nf6 Rb2 Rf8 h8Q Rf7 h7 Ng4 Qg7 Nh6 h8B Bh4 Bf1 Bg3 Qf6+ Kg4 Bg7 Nf5 Ra2 Bh2 Ba3 Nd7 Nb8 Ne3 Rb2 Ne5 Bh3+ Kh5 Bf5 Rc7 Bh7 Kg4 Nd7 Rb8 a8Q Nc6 a7 Rbb7 Nb8 Re7 Ra2 Rbc7 Qb7 Re6 a8R Re5 Qa7 Re6 Kd2 e1B+ Ke2 Bc3 Bh8 Nc4 Kf1 Bd4 Kg2 Ree7 Qb1 Re5 Re2 Ree7 Qh6 Re6 Qc2 Re5 Bg8 Kf5 Kh3 Ne3 Bg7 Bd3 Qf6+ Ke4 Qc3 Bc2 Qc5 Kd3 Bh7+ Re4 Bh8 Bb1 Qc1 Bc2 Qd1+ Kc3 Bc1 Bd3 Qc2+ Kb4 Bg7 Re5 Bh8 Be4 Na6+ Ka4 Qf5 Ng2 Ne6 Qe7 Rg8 Be3 Nd8 Bd3 Rd2 Qe8 Rg6 Ree7 Bc3 Bd4 Rc8 Re1 Re2 Ne3 Qf6 Be4 Ba5 Rh1 Nb8 Re1 Bcd2 Ka3 Bac3+ Na5 Bb2+ Ka2 Ba3+ Ka1 Bdc1 Nc6 Bcb2+
Bnn4B/5KRQ/2pr3P/1RNk1N2/2P2rQ1/1p6/q1N1b1qp/nR2RQ1b b - - 0 1 illegal: No possible last move, all moves rejected
3rR3/Rq3k2/1Rp1P2n/1bK2nb1/NpN1B3/bpq1Q1NB/2P2R2/3QBr2 b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 e5 dxe5 f5 exf5 Be7 gxh5 Bf8 Ke2 g5 Kd3 d5 Kd4 b5 f4 b3 h4 g4 a4 g3 a5 g2 h6 b4 a6 Be7 f6 Bb7 a7 Nd7 f5 Nb6 h5 Qd6 h7 Nh6 f7+ Kf8 Nd2 Nc8 Nc4 Qc6 Bd2 Bh4 Ne2 Be7 Be1 Qa6 Ng3 Rg8 h8Q Bh4 Kc5 d4 Ra3 g1B Bh3 Ke7 f8N Bg5 f6+ Kf7 Nd7 Nd6 Ndb6 Rgf8 Na4 Rad8 a8B B1e3 Ra1 Bc8 Be4 Ndf5 Rh2 c6 Rf2 Qb7 Qh7+ Ke6 f7 Bc1 Ra2 d3 Qg8 Bh4 Qg5 d2 Qe3 Bg5 Ra1 Ba3 Ra2 Rfe8 f8R Ke7 Rg8 Rf8 Ra1 Rf6 Re8+ Kf7 Ra2 Qc7 Ra1 Ba6 Ra2 Bb5 Ra1 Ng8 h6 Qb7 h7 Ngh6 h8R Rb8 Qde2 d1Q Q2d3 Qf3 Qd1 Rd8 Ra2 Rd2 Rb8 Rd8 Re8 Qa7+ Rb6 Qb7 Qed4 Qd3 Qe3 Qc3 Rf3 Bc1 Nb2 Nh4 Ra7 Rf4 Na4 N4f5 Rf2 Rf3 Re2 Rf1 Rf2 Ba3 e6+
1Q1n2N1/1Q2n3/BKp1P2R/Bb3pBq/N1NQb3/2P1qk2/r2p2n1/3N1rR1 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 b4 g5 b3 g6 Bd6 axb3 Ne7 b4 Ng8 b5 Bc5 Rh3 Be7 Rh1 Bg5 hxg5 Ke7 Ra4 Kf8 Ra1 Ke8 Kf2 Ke7 e4 Ke6 b4 d5 g7 h5 b6 a5 g6 f5 b5 a4 b7 a3 b6 h4 Nc3 h3 Ba6 h2 Qd4 f3 Ke3 a2 Nd1 f2 Ne2 f1Q Nec3 Qe8 Na4 Bd7 c3 Nc6 b8B Nge7 g8N Nd8 b7 Bb5 g7 c6 Bc7 Qh5 b8Q Rh6 Rg1 h1B Ba5 Qg2 Rb1 a1N Qb7 Qgg6 Rb2 Qe8 Rh2 Rg6 Rh4 Rg2 Rh2 Rf2 Rh4 Rf1 Rh2 Bg2 Rh4 Kf7 e6+ Kg6 e5 Kg5 Rhh1 Qh8 Rh6 Nc2+ Kd2 Ne1 Ke3 Nd3 Bd2 Nf4 Bc1 Kg4 Bd2 Nc8 e7 Qh5 e8N Ne7 e6 Qh7 Rh1 Be4 Nd6 Ra7 Nc4 Ng2+ Ke2 Qh3 Bg5 Qg6 Rg1 Qgh5 Kd2 Ra8 Nf6+ Kf3 g8Q Qg3 Qh8 Qgh3 Ng8 Qg3 Qhe5 Ra7 Qeb8 Qe1+ Kc1 Qe3+ Kb2 Ra8 Kb3 Ra7 Qd2 d4 Kb4 Ra8 Kc5 d3+ Kd6 Ra7 Kc7 Ra8 Qb2 d2 Qb4 Ra7 Qc5 Ra8 Kb6 Qe1 Qd4 Qf2 Nc5 Ra7 Bb4 Ba4 Bb5 Ra5 Ba6 Qe3 Qh8 Bb5 Qd4 Ra1 Ba5 Ra2 Na4
4NR1r/1R1b2Qn/BPq1rN1B/8/Pp6/1Qb2knp/K1BBqpR1/2Nq4 b - - 0 1 illegal: No proof kernel
r1Qq1B2/N3q3/BP1k1n2/2NRp2n/b1pn1R1B/K1R2pr1/Q2P4/b3N1R1 b - - 0 1 illegal: No possible last move
n1Q2QNK/1b1Bb2N/kpn2B1P/4R3/Q2N4/RqP1p1Rp/8/b2rRrq1 b - - 0 1 illegal: No possible last move, all moves rejected
N2R4/3K2B1/kp1QBbQp/1R1P1qrB/P1bp1qr1/2Q3n1/2N4n/q2NN3 b - - 0 1 illegal: No proof kernel
Q1QN2RK/3RqB2/qp4pQ/4nB2/2pQ2P1/k1PB4/N1rnq3/1b1r1Nb1 b - - 0 1 legal: proof: g4 f5 b4 e5 d4 a5 bxa5 f4 dxe5 f3 Bf4 h5 Bg3 h4 exf3 hxg3 f4 Ra7 f5 Ra8 Kd2 Ke7 Kc3 d5 Kd4 g6 a4 c6 h4 g2 f4 b6 e6 Kd6 h5 Rh7 c3 Rha7 h6 Re7 a6 Qc7 a5 Re8 a7 Be7 h7 Rd8 h8Q Qb7 a6 Qc7 f6 Nh6 f5 Qd7 f7 Bb7 f8Q Qe8 f6 Nf7 Qhh6 Rd7 Nd2 Ne5 f7 Nc4 Bd3 Bc8 Nf1 Nd2 Ne2 g1Q+ Qe3 Qf2 Nc1 Qe2 Na2 Rd8 Rh5 Nd7 Rh7 Ne5 Qeh6 Qd7 Qg8 Bg5 f8N Qe7 Qh8 Bf4 Rg7 Bh2 Rg8 Bb7 Qa4 Rd7 Rd1 Bg1+ Ne3 Re8 a8B Red8 a7 Re8 Bf5 Qa6 Nh7 Rf8 Ng5 Rf7 Bd3 Rf2 Nf7+ Kc7 Nf1 c5+ Ke3 Rd8 Qd4 Kc6 Bf5 Rh2+ Kf4 c4 Bd3 Rd6 Nd8+ Kb5 Bf5 Ka4 Bd3 Qe8 Kg5 Ka3 Kf6 Re2 Kg7 Qe7+ Nf7 Bc8 Bc6 Rg2 a8Q Rh2 Bd7 Re2 Qe4 d4 Qec6 Bb7 Qcc8 Be4 Kh7 Rf2 Qf6 Rh2 Kh8 Rg2 Nd8 Rd5 Be2 Bb1 Qff4 d3 Qd4 Qh4 e7 Rf2 e8B Qe7 Qh7 Nb3 Qf4 d2 Bf7 Rg2 Bf5 Rd6 Re1 d1Q Qhh6 Qd3 Rd1 Qe3 Bf3 Rc2 B3e4 Qe2 Rd2 Rf6 Rd7 Rd6 Qf2 Rd1 Qd4 Nd2 Bd3
6qb/QB2rq2/Pk2rpN1/1nnQN2B/p1q1bNRK/5P2/2p3QR/2N4R b - - 0 1 illegal: No proof kernel
1k3rNq/2r3bp/R1Q1Nnn1/b2R2QN/1P4p1/4B1P1/p4BK1/nQqB1Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Bf5 h5 Bg6 hxg6 Qd7 Ra6 Qc8 Ra1 Qd8 Kf2 Kd7 d4 Kc8 e4 c5 d6 f5 b6 a5 d5 a4 b7+ Kd7 g7 f3 g3 f4 e5 a3 e6+ Ke8 e7 Kd7 Nd2 c4 Ne2 c3 Nd4 c2 Ne4 g4 Rh5 Nf6 g8N Bg7 Be2 Nc6 b8Q Ra7 Qf1 Rc7 Bd1 Ne5 Ne6 Ng6 Be3 c1B Qb6 Kc8 e8Q Bd2 Qec6 Ba5 b4 Nd7 Nef6 Qf8 Qbc5 Kb8 Qc2 Qc8 Kg1 f2+ Kg2 Qd8 Qb1 f3+ Kh1 Qf8 Rg5 Qe8 Nh5 Nf6 d7 Qf8 d8B a2 d6 Qe8 d7 Qf8 Rd5 Qe8 Qh3 f1N Be7 f2 Kg2 Qc8 d8Q Nd2 B7c5 Nb3 Qe7 Qf8 Qh1 Qd8 Qf1 Qe8 Qed6 Qf8 Qf4 Qc8 Qg5 Qd8 Ne7 Rf8 Ng8 Qe8 Qb2 Qd8 Rc1 Na1 Qb1 Qc8 Bcd4 Qe8 Qd7 Qc8 Rc6 Qd8 Ra6 Qc8 Qc4 Qe8 Qdc6 f1Q+ Kh2 Qe1 Qf1 Qd2+ Bf2 Qc1 Kg2 Qf7 Nh6 Qg8 Bde3 Qh8 Ng8
rQ3B1b/3R3p/q2R4/1kp3P1/1bR1P3/1pn1QR2/N2QbB1K/1q1rnN1B b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 Kd7 Kg3 Kc6 d4 f5 a4 b5 e6 c3 g6 f4+ Kh2 b4 g4 b3 g5 f3 g7 f2 d5+ Kc5 e7 c2 e8Q c6 d6 Bh3 d7 Nf6 g8Q Nd5 a6 Qa5 d8B Bc8 a7 Bb7 Nc3 Nd7 Be7+ Kc4 Bg2 f1Q Nf3 c5 Nd2+ Kd4 Na2 Qe1 Rf1 N7b6 Rf3 Qb5 a5 Qc4 a6 Bg7 Bh1 Nd7 Bf8 Ne5 Nf1+ Nd3 Qd2 Nc3 Qge6 Qb5 Qee3+ Kc4 Qb8 Bc8 Bb2 Bg4 Rd1 c1B Ba1 Ba3 Bb2 Ne4 Bd4 Qb7 Rc1+ Kb5 Rc4 Nc3 Qc7 Rb8 a8R Qb1 Ra7 Rd8 Qb8 Qb6 Re7 Bb4 a7 Ne1 a8R Rg8 Ref7 Bh8 Ra6 Qb7 Rd6 Bh5 Qa7 Qa6 Rfd7 Ra8 Qe5 Rg7 Bf2 Re7 e4 Ree8 Qef4 Red8 Re3 Be2 Rf3 Re8 Qfe3 Re5 Qc1 Rd5 Qb2 Rd1 Qbd2 Ba3 Qc7 Bb4 Qb8+
R1nk4/5pq1/NN1Q1Bb1/pq3Rq1/1rPR4/5P1K/n1B1pr1Q/2QbR1B1 b - - 0 1 illegal: No possible last move
1q1bq1Nn/2r1Qp2/3Bp1RR/4N1QB/1N1K2bk/n1pN2q1/B2P3P/2r3Q1 b - - 0 1 illegal: No possible last move, all moves rejected
2q1QKn1/1B2P1B1/1ppp2q1/2B4b/Q1PR1Q1n/2k4q/1b2R1R1/1NrBr2N b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 e5 dxe5 f5 exf5 Be7 gxh5 Bf8 Ke2 Kf7 Kf3 g5 Kg4 d6 h4 b3 a4 b6 f4 b2 c4 c6 e6+ Kf6 a5 Qe8 e7 Qg6 a6 Ra7 h6 Rb7 h7 Be6 a7 Qg7 Kh5 g4 a8B g3 Be2 g2 Be3 Bd5 Ra2 Nh6 Nh3 g1Q Rh2 Q1g3 Bc5 Rd7 Bb7 Rd8 Rg2 Qd3 Nf2 Qc3 Qa4 Be4 Nh1 Qg8 Bd1 Bg7 Re2 Qf8 Rg2 Rg8 h8R Nd7 Re2 Qh3 Rh7 Kf7 f6 Ke6 f5+ Ke5 Kg6 Ra8 f7 Qc8 f8B Nf6 h5 Rh8 Rg2 Nfg8 Re2 Bf6 Bg7 Ra5 Rg2 Rb5 Re2 Rb3 Rg2 Rc3 Re2 Rc1 Rg2 Ng4 Kf7 Nh2 h6 Nf3 Re2 Nh4 Rg2 Qc7 Kf8 Bf3 Re2+ Kf4 Rg2 Bh5 Re2 Be5 f6 Bc3 Rg2 Ke4 f7 Kd3 Ke8 Bf3 f8Q Bh5+ Qf7 Be5 Kf8 Bd4 Qf4 Bc3 Na3 b1Q Rae2 Qc2 Nb1 Bb2 Be5 Qcd7 Rhg7 Rh7 R7g4 Rg7 h7 Rg6 h8Q Re6 Bf6 Re5 Nd2 Kc3 Bg7 Qg6 Nb1+ Kd3 Qf7 Qc8+ Qe8 Re4 Qh6 Re5 Rge4 Re6 Qf4 Re5 Na3 Kc3 Rd4 Re3 Red2 Re1 Rdf2 Rf1 Re2 Re1 Nb1+
N3RnB1/Nr2p3/K2Q4/B2pb1r1/bP1PQn2/1rp2QN1/3kRR1Q/5q1q b - - 0 1 illegal: No possible last move, all moves rejected
4kB1B/1RNnp2R/2b2p2/1nPp1NB1/K3PN2/b2qr1NQ/4r1qQ/b4R2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 Ba6 dxc5 Bb7 Bh3 Bh6 fxg5 Bg7 g6 Bc8 g5 Bf8 Bg4 hxg4 Kd2 a5 Kc3 d5 Kb3 f6 c4 g3 e4 g2 h4 Bg4 c6 Qd6 g7 Qh2 c5 Kf7 g6+ Ke8 c7 Nc6 c8Q+ Nd8 h5 Qg3+ Nc3 Bf3 h6 Qc7 h7 Rb8 b6 Bg4 b7 Bf3 Bg5 Qd7 Qc2 Qd6 Ka4 Qb6 b4 Qa6 b5 Bd1 b6 Qe2 Nh3 g1Q Nf4 Qd3 Qh3 Nf7 Nce2 Qg2 Ng3 Ngh6 g8N Nf5 g7 N5d6 Nh6 Nb5 g8R Ne5 Nhf5 Nd7 Rb1 Ra8 b8B Bg4 Rg6 Bh6 b7 Be2 Be5 Qd1 Rf1 Nc3+ Kb3 Rf8 h8B Qf3 b8N Kd8 Na6 Bb5 Nd3 a4+ Ka3 Bc6 Qch2 Qg2 Kb4 a3 Rg7 a2 Bc1 a1B Bb2 Bc1 Nc7 Ra2 Bf4 Re8 Ba3 Re2 Rh7 Qc2 Bh6 Qd2 Nh1 Rg8 Bf8 Rg3 Rb2 Rf3 Nhg3 Qe3 Ka5 Qd2 Rb7 Nb5+ Bb4 Ba3 Ka4 Qe3 Bc3 Qd2 Be5 Rfe3 Bf4 Qc3 Bg5 Qd2 Na6 Ke8 Nf4 Qd3 Nc7+
4K2N/1qQ1p2b/1BPP3p/1RrRB1Q1/2Np2QR/br2nn1B/2R4k/q1n5 b - - 0 1 illegal: No possible last move
B2Rkq2/NQrp1R2/bBN3p1/3n1b1r/N1P5/2B2qP1/R1nKpQ2/6nR b - - 0 1 illegal: No possible last move, all moves rejected
2b2qR1/2bpk2n/1p4Nr/1BP1B2B/n4qB1/p2N1Qr1/n1Q2K1P/R2R2N1 b - - 0 1 illegal: No proof kernel
1n1NN3/2qp3b/PR2B3/1Bb4p/Rp1r1QNN/P3n2b/K1k1qR2/1r2BQ2 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 d4 cxd4 h4 Qc7 hxg5 Qd8 Kd2 Kf7 g4 b5 c4 e5 Kc2 h5 Kb2 e4 f4 b4 f6 Kg6 a6 e3 f7 d3 f5+ Kg7 f6+ Kg6 c5 e2 c6 e1Q c7 d2 Nh3 Qe6 Bb5 Qc4 Rh2 Qe6 Qf1 d1B Bd2 Qb6 Be1 Qb7 Nf2 Qc6 Nd2 Rh6 Nf3 Qe6 Nh4+ Kh7 g6+ Kh8 g5 Bg4 g7+ Kh7 Kb1 Be7 f8Q Bb7 c8N Bh3 f7 Nf6 g8R Bc5 Rg6 Ng4 Nd6 Qc7 Ne8 Ne3 Ng4 Be4+ Rc2 Qee5 Rb6 Rd6 Qf4 Rd2 Qf1 Rd3 Rf2 Rd4+ Kb2 Qe6 Qd6 Qc4 Qf4 Qe2+ Kb3 Kh8 f8N Bh7 Ne6 Kg8 Nef6+ Kf7 g6+ Ke7 g7 Kf7 Nf3 Kg6 g8B Ra7 Nd8 Ra8 Qh2 Kf5 Ne8 Ke4 Nh4 Ra7 Be6 Rb7 Bc6+ Kd3 Ba4 Qe5 Qf4 Rc7 Rc1 Rc6 Rc2 Qc7 Bb5+ Rc4 Kb2 Rd6 Ka1 Rd4 Rd2+ Kc3 Rd3+ Kc2 Ra3 Rc3 Ra4 Rb3 a3 Rb1+ Ka2
3R4/1Nbp1B1P/K1Q1p1PB/1N1rN2k/2b1n1B1/1R1r1bq1/1BRp2n1/4q1Q1 b - - 0 1 illegal: No proof kernel
1N2Q1r1/bRpQ1Bk1/qb3NB1/n1PP3q/1nr3p1/1Q4bR/p7/B2Q1NK1 b - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 f5 gxf5 Be6 h5 Bc4 Ne2 Bf7 Ng1 Bg6 hxg6 Bg7 Rh2 Bh6 Rh1 Bf8 b4 a5 d4 e5 c4 h5 f4 h4 Kf2 a4 f6 a3 d5 g4 f7+ Ke7 g7 Kf6 b6 h3 f5 a2 b7 h2 b5 Na6 b8Q Nc5 b6 Rh3 b7 Bd6 Nc3 Qc8 Rb1 Na6 Nge2 Ne7 g8B Nc6 Ng3 Na5 Bd3 Kg7 Bb2 e3+ Kg2 e2 Nce4 e1B Nf1 Bf2 Ba1 Bdc5 f8Q+ Kh8 f6 Ba7 Bc2 Rc3 f7 Bfd4 Qa3 Kg7 Nf6 e4 Qa4 e3 Bg6 e2 Qd7 e1B Rb3 Bg3 f8Q+ Kh8 Qfd8 Rc1 B8f7+ Kg7 Rb6 Be3 Q8e7 Bd4 Qa3 Nb4 Qab3 Be3 Qd6 Qe6 Qd7 Bef2 Qbd8 Rc3 Q8e7 Rg8 b8N Bc5 Rb5 Qa6 Rb7 Bcb6 c5 Rc4 Qee8 Bf4 Rg1 h1Q+ Kf2 Qh7 Rh1 Qh5 Kg1 Bg3 Rh3
R1K2B2/2pQ1P2/3Np1nN/R1r1Bbn1/qPN2r2/1Q3p1b/4qk1N/2bB2Q1 b - - 0 1 illegal: No proof kernel
1n1k1r2/qbprpR2/BQn5/pB2R3/3bN3/P2r1q1B/1PN1QN1K/1N4Q1 b - - 0 1 legal: proof: e4 d5 exd5 b5 c4 g5 cxb5 Bf5 f4 Bg4 fxg5 Bc8 g4 h6 g6 Qd7 g5 Qf5 g7 Qf6 d3 Qd6 g6 Qd8 Bg5 hxg5 Kf2 a5 Kg3 f5 h4 g4 d6 f4+ Kh2 f3 h5 f2 b6 Ra6 b7 Rc6 a3 Nd7 b8Q Rc3 d4 Rf3 h6 Re3 h7 Re2 d5 Re6 Bh3 f1Q Qb6 Re5 Qe2 Nh6 g8B Ba6 g7 Nb8 Bf7+ Kd7 g8B Qf5 Be8+ Kc8 Bb5 Bg7 Bf7 Rf8 h8Q Nc6 Qg8 Bb7 d7+ Kb8 d6 Qh5 Bfc4 Rd5 Ba6 Qc8 d8N Bd4 d7 Nf7 Ne6 Nfe5 d8N Rd7 Ng5 Qf7 Ne4 Qf3 Ne6 Qd8 N6c5 Kc8 Nd3 Nb8 Nb4 Nec6 Nc2 Qe8 Bcb5 Kd8 Bf1 Qh5+ Nh3 Qc5 Nhf2 g3+ Kg1 g2 Kh2 g1R Bh3 Rg7 Rf1 Rh7 Qg1 Rhf7 Nbc3 Rg7 Rae1 Rg3 Nb1 Qfc3 Nh1 Rd3 Rf5 Qb3 Nhf2 Qf7 Re5 Qf3 Rf1 Ba8 Qb7 Qa7 Qb6 Bb7 Ng4 Qe3 Rf7 Qf3 Ngf2
Q1qb3K/1P1N1R1n/R1r4k/n2N2p1/2NBpbrN/Q4pqR/6P1/r1Q2B2 b - - 0 1 illegal: No proof kernel
1B2r1n1/NPQ4R/2b5/QBbPr1NK/Rqpp2n1/2k1q3/2pBQ3/4R1bB b - - 0 1 illegal: No proof kernel
4B2Q/1P2q3/nNq2pp1/Q1nQB2R/qr3R1P/4bpKQ/1R2NrN1/5bk1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 d4 Kd6 e4 a5 b4 c5 h6 f6 e5+ Ke7 e6 Kd6 h7 a4 b6 c4 b7 c3 b5 c2 b6 a3 e7 g6 e8Q f3 Bb2 c1Q Ne2 a2 Nbc3 Bh6 Kg3 Qe3 Na4 Na6 b8R Bd7 h3 Qde7 Qc8 Qf7 Qd2 Bg5 Qa5 Qc1 Rh2 Ke7 d6+ Ke6 d5+ Kf5 Be5 Ke4 h4 Ke3 b7 Nc5 Nb6 Bb5 d7 Ne7 d8N Re8 h8Q Nc6 d6 Qe7 d7 Nb4 Ne6 Nba6 d8Q Qc4 Rc1 a1Q Qd5 Qaa4 N6f4 Qe4 Qh3 Bc4 Qdd7 Qec6 Qd5 Bb5 Rc4 Rd8 Qf7 Rd2 Qd5 Rb2 Rg8 Rb4 Rg7 Rd8 Rh7 Rd6 Rh5 Rd7 Qdg8 Rd2 Qd5 Rdb2 Nc3 Ra2 Rb2 Bh6 Nce2 Bg5 Kg4 Kf2 Ng2 Be3 Rf4 Bc4 Nd4+ Kg1 Kg3 Bb5 Bd3 Bc4 Bf5 Bf1 Bd7 Qce6 Be8 Qec6 Rb3 Rd2 Rb2 Rf2 Ne2+
2B5/Qp3Rkn/B1PprN2/RP1n1Kpb/n2R3b/q1rB4/5N2/3qRQQ1 b - - 0 1 legal: proof: f4 a5 b4 h5 g4 e5 gxh5 Na6 fxe5 Nb8 Bh3 Rh6 Bg2 Rh8 d4 c5 dxc5 Qg5 Bd5 Qd8 Bb2 a4 e4 a3 c4 axb2 Kf2 g5 Kf3 f5 h4 f4 Kg4 d6+ e6 f3 a4 f2 c6 f1Q h6 Qdf6 e5 Qe7 h5 Qef6 h7 Qe7 h6 Nd7 c7 Qg7 e7 Qe1 c5 Qh4+ Kf5 Qh2 c6 Ra6 a5 Qg3 Rh4 Qg2 Rd4 Rb6 a6 Qg3 a7 Qb3 a8Q Qc4 Nh3 Qa2 Nc3 b1N Qf1 Qc4 Ra5 Ngf6 Nf2 Qc5 Bc4 Nd5 Qa7 Kf7 Nce4 Nc3 e8R Na4 Ba6 N7f6+ Re6 Bd7 c8B Be8 Qg1 Rg8 h8R Nh7 Nf6 Be7 Qf1 Bd8 Re7+ Kf8 e6 Rb5 Qg1 Qc3 Qf1 Rc5 b5 Qb2 Rd7 Bb6 e7+ Kf7 Qg1 Rc3 Rd8 Nf8 h7 Qa3 Qf1 Qh6 Rd7 Rg6 Rc7 Ne6 Rf8+ Kg7 Qg1 Bf7 e8B Qh5 Re7 Qd1 Bed7 Rh6 Ree8 Bh5 Qf1 Nec5 Re1 Rg6 Be8 Nd7 Bf7 Rh6 Bg6 Bc5 Ke6 Bb6 Bd3 Rg6 Kf5 Bc5 N6e4 Re6 Qg1 N7f6 Qf1 Kh6 h8Q+ Nh7 Qe5 Bb4 Nf6 Kg7 Qh2 Bc5 Rb4 Bd4 Qhg1 Be5 Rc4 Bg3 Rd4 Bh4 Rf7+
qr1nk3/1p3bRK/pnr5/Nb3Q2/2pQQ1P1/Pq3R2/4B3/qN1RBQB1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 c4 Nd7 cxd5 Nb8 b4 gxh4 b5 e6 Ke2 a6 Ke1 Bc5 Ke2 Be3 Ke1 Ba7 b6 Nc6 bxa7 Nb8 Ke2 c5 Ke3 h5 Kf4 h3 g4 h4 d4 c4 a3 h2 d6 h3 d7+ Kf7 d5 Qc7+ Kg5 e5 d8B e4 f4 e3 f6 e2 f5 e1Q d6 Qe8 d7 Qd6 Bb6 Qe1 d8Q Qdb4 Be2 Qf8 Bd2 Rh6 Nf3 Be6 Bg1 Qe8 Ne5+ Kf8 f7 Qg3 Qd4 Qb3 Be1 Qc8 Nc6 Nf6 Na5 Nc6 Q1d3 Ke7 f8R Nd8 Q3e4 Rb8 a8Q Nd5 f6+ Kd7 Rf7+ Ke8 Rg7 Nb6 Qf5 Bd7 Qa7 Bb5 f7+ Ke7 Ra2 Rc6 Rd2 Kf8 Rd3 Ke7 Rf3 Kf8 Bgf2 Ke7 Rf1 h1B Bg1 h2 Qde4+ Kf8 Bg3 Bg2 Rd1 h1Q Be1 Qh8 Rg6 Qa1 Kh6 Nd5 Qad4 Nb6 Kh7 Bh1 Rg3 Bg2 Rg7 Bf3 Qed3 Bd5 Qf1 Ke7 Rf3 Kd7 Rg5 Ke7 f8Q+ Kd7 Qfc5 Ke8 Rg7 Bf7 Q3e4+ Ne6 Bef2 Ra8 Qg6 Nd8 Be1 Qb8 Qgd3 Qa7 Qg5 Rb8 Qgf5 Qa8 Q3e4+
2B1q1BB/P3n1b1/pN5R/B4PpN/b1R2N1R/1n1rq3/Q1K4p/2Q1rk1q b - - 0 1 illegal: No proof kernel
Bk6/p1n4q/1b1Q2rR/2Rb1N1R/1BNR1qQp/K2bp3/P3P3/3QnNr1 b - - 0 1 legal: proof: f4 d5 b4 g5 fxg5 c5 bxc5 Qb6 c4 Qh6 cxd5 Qxh2 d4 Kd8 Kd2 Kc7 Kc2 e5 Kb2 h5 g4 b5 c6 f5 g6 b4 g7 e4 g5 e3 g6 f4 d6+ Kb6 d5 f3 d7 Kc7 d8R f2 d6+ Kb6 d7 Kc7 Nd2 b3 Bg2 f1Q Nc4 Bb7 Bd2 Ne7 g8N Rh6 g7 Qff4 Ka3 b2 Bb4 b1B Nf3 Nf5 Ne7 Rg6 g8Q Bd3 Nfd2 Nd4 Nf5 Bc5 Nf1 Bb6 Bd5 Rg1 Qg4 Nf3 Rh8 Na6 Rh6 Rc8 d8Q+ Kb8 Qd6+ Nc7 Rb1 Ne1 Rb3 Be4 Rd3 Rg8 Rd4 Bd3 Bf3 Qh4 Rh3 Qe7 Rh2 Qh7 Bh1 Ka8 Be4 Rg6 Bh1 Ne8 c7 Bd5 c8R+ Kb7 Rc6 Nc7 Rc5 Kb8 Rh3 Be6 Ba8 Bd5 Rf3 h4 Rh5 Qg5 Rff4 Qgh6 Rfe4 Qf4 Re6 Rg7 Reh6 Rg8 Qa1 Rg6 Qd1
R1B2Rk1/pqr4n/3NbB2/Qq5b/1rp2Q2/P2B1Bp1/1Qn2NP1/1KR1q3 b - - 0 1 legal: proof: e4 c5 b4 f5 exf5 g5 c4 g4 h4 Bh6 bxc5 Bg5 hxg5 d5 Qf3 dxc4 Qe2 Nc6 Qd1 Nb8 d4 Kf7 Kd2 b5 Kc2 h5 f4 e5 f6 b4 d5 h4 g6+ Kf8 f5 e4 a3 g3 c6 e3 c7 h3 f7 h2 d6 e2 d7 e1Q g7+ Ke7 f8R Qf2+ Qe2+ Qe3 f6+ Ke6 f7 Qe5 Nc3 b3+ Kb1 b2 Bg5 Rh7 Nh3 Qe7 d8Q Nf6 g8B Na6 Ne4 Nb4 Nhf2 Rb8 Nd6 Nc2 Re8 Rb4 f8Q+ Rf7 Bh7 Bd7 Be4 Nh7 c8B Qb5 Bf6 Rg7 Rg1 h1Q Qa5 Rf7 Qd2 Rg7 Be2 Rf7 Rc1 Qe1 B4d3 Rg7 Ba6 Bc8 Rd8 Qeb7 Bf3 Rc7 Qfh6 Bd7 Qhf4 Be8 Ra8 Bh5 Nde4 Kf7 Qc3 Q7c6 Bc8 Qcb7 Nd6+ Kg8 Ka2 Qee4 Rf1 Qe7 Rac1 Qe1 Qb3 b1B+ Kb2 Ne3 Ka1 Bc2 Qb2 Bd1 Kb1 Nc2 Bfe4 Bdg4 Bf3 Qe3 Rfe1 Qd2 Re7 Be6 Rf7 Qe1 Rf8+
R1rR2B1/pQ3nbQ/nq3pk1/P2Q3N/K3PR2/n2q4/4b1pB/NR3Br1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxc5 Ng8 d4 g5 Kd2 b5 Kc2 f3 Kb3 b4 h4 f6 a4 Kf7 e4 f2 c6 g4 h6 g3 h7 g2 c7 Nd7 a5 Bd6 h5 Bf8 h6 Bc5 d6 Rb8 d5 Nf8 d7 Qe7 d8Q Ba6 c8B Ra8 d6 Be3 d7 Bd2 Qb6 Rb8 d8R Rb7 Be6+ Kg6 Ne2 Qc5 Ka4 b3 Ng3 b2 Nh5 Nd7 Rh4 Nb8 Na3 b1N Rf4 Be2 Nc2 Na3 Rb1 Na6 Na1 Qd6 Qbb3 Qb6 Qb5 Bb4 Qdd5 Bf8 Qbd7 Rb8 Q7b7 Bg7 Bb2 Rc8 Be5 Ne7 Bg8 Nf5 Rh4 Nd6 Bh2 Rc1 Rf4 Re1 Be6 Rf8 h8R Nf7 h7 Rc1 Ra8 Rfc8 Rd8 Bg4 Bd3 Rg1 h8Q f1Q Bb5 Qf3 Be2 Qd3 Bf1 Ne5 Bg8 Nf7 Qdc6 Bf3 Qd5 Be2 Qh7#
7K/5b1N/qN1R3R/Q5N1/1BBnn1pp/QpPn1P2/BBk3nQ/r1r1b3 b - - 0 1 illegal: No proof kernel
Q5qB/2R2Q2/Q2n3b/4R1NN/r1B2pNr/pn1Ppb1k/KR3r1P/1R5r b - - 0 1 illegal: No proof kernel
BQ1K3N/1N1R4/R4Nb1/1B1br1PQ/8/1BrQ1np1/kq3pPp/1n1Bbb2 b - - 0 1 illegal: No proof kernel
N1r1b3/1Qr1n3/3n4/3p2Bk/Rprp2Pr/1BPBN3/3QqR1b/1BK2Q1N b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 d4 cxd4 h4 Qc7 hxg5 Qd8 Kd2 Kf7 a4 b5 f4 h5 a6 e5 g6+ Kf6 g7 d6 a7 h4 a5 e4 c3 h3 a6 h2 Ne2 b4 Ng3 Qe8 Na3 Rh5 Bd3 Be6 Nc4 Nh6 g8B Be7 Ra4 Qd7 Ne3 Qe8 Rf1 h1R Rf2 Bd7 Bb3 R1h4 Nh1 Nf7 Qc2 Kg7 f6+ Kh6 f5 Nc6 Qd1 Rd8 a8B Rc8 a7 Bd8 Bb7 Bc7 a8N Ne7 Kc2 Rg5 Qd2 Kh5 Bba6 d5 Bac4 Nd6 f7 Bb5 f8Q Rg6 f6 Bb8 f7 Rf6 Nd1 e3 Qg7 e2 f8Q e1R Ne3 Rh6 Be4 Rh8 Bcd3 Rc4 Kb2 Bc7 Bb1 Bc6 Bed3 Rf1 Re2 Rf7 Rf2 Nb7 Nc2 Nf5 Qf4 Rg4 Rf3 Qe2 Be3 Rh4 Kc1 Be5 Rf1 Nbd6 Qf2 Bh2 Bg5 Qe4 Qd2 Qe2 Ne3 Rb7 Qc7 Ne7 Qb6 Rd7 Qb7 Rc7 Qf2 Rf8 Qfe1 Rh8 Rf2 Rhc8 Qf1 Be8 g4+
1rr2qB1/n1r2Nkb/1R4NQ/1Pn2R2/rb1pP1N1/1p1Q3p/1B1R2B1/1R2K3 b - - 0 1 illegal: No proof kernel
5Q1B/RK4NQ/Rn1NPN2/1kBN2P1/npr2b1b/1p1q2rp/5b2/1B4Rb b - - 0 1 illegal: No proof kernel
2q2nQ1/3Q4/1QRKprNp/1N2P3/bp5Q/P2bBkr1/Nr1R1B2/n2r3B b - - 0 1 illegal: No possible last move
kQBKb3/r2QNqRb/R2PP1Qr/pBb1R2n/1Q6/n3p3/p5NB/7b b - - 0 1 illegal: No proof kernel
B1Q1Rn2/3NRK2/2p2Q1B/r4N2/Pb5p/1B1kr1P1/1p1rq2Q/1br1n1NN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 b5 d4+ Kb6 f4 h5 a4 b3 g3 b2 f6 e6 g6 h4 d6 b4 f5 b3 g7 Qd7 f7 Qe7 f6 Ba6 d7 Ka5 d8N Kb4 d5 Be2 d6 Kc4 d7 Qa3 Bg2 Bd3 Bh6 Na6 Qe2 Ne7 g8B Nb4 Nb7 Nc2 d8Q Qa2 Nc3 b1R Ne4 Rc1 Nf2 Ne1 Qc8 Ra5+ Bd5+ Kc3 Nd6 Bb1 Nf5 b2 Rh2 Qc4 Nh1 Qg4 Qg2 Kd3 Qh3 Qd1 Re2 Qd2 Re4 Qe2 Qh2 Rh7 Kf4 e5+ Kg5 Ng6 Ba8 Bc5 f8Q c6 f7 Bb4 Kf6 Rg7 Qe7 Nf8 Qee6 Rg4 Qe7 Rf4 Kg7 Rf2 Qf6 Kc2 Re3 e4 Raa3 Rg2 Rad3 Rf2 Rd7 Rg2 Re7 Kd2 Rc3+ e3 Rc5 Kd3 Rce5 Qf1 Re8 Rd2 Re4 e2 R4e7 Nh7 f8N Qg2 Ne6 Nf8 Kf7 Nf3 Kg7 e1R Bf7 Re3 Nc5+ Kc2 Kg8 Qe2 Nd7 Kd3 Bb3 Ne1 Kf7
1BbR4/k4B2/rQp1Qp1N/1r1N2Nr/R2QKnN1/4b1PB/4pPn1/r4q2 b - - 0 1 illegal: No possible last move
1R4QK/2Qnr2P/1nR1Q2p/1q3BrN/1pkNN2P/Br2QR2/1p1b4/2r2b2 b - - 0 1 illegal: No possible last move
rq1r2R1/2P2k2/3N1rNK/1Q2Q3/b1Bpnp2/1N1p1B2/2QRQn1P/1rB3b1 b - - 0 1 illegal: No possible last move
1B1BQrNn/K1pp1bR1/3Q4/N1P1N1nN/4n1n1/1qr1Q2p/P2b4/2R1R2k b - - 0 1 illegal: No possible last move, all moves rejected
1Q1N3B/qpbK2Rp/2RB4/Qn1n2NR/N1kb2Bn/1p4Pr/1P5r/2nB4 b - - 0 1 illegal: No proof kernel
1q4q1/Np2NBR1/2RB1bq1/4bQp1/R1KQ2PP/4N3/2B1p3/1kNb1rnr b - - 0 1 illegal: No possible last move, all moves rejected
b2bn1K1/2N2r2/1Q3q1R/Q2RPq1p/1QB2pN1/Bp2rP1N/1rNk4/2q2B2 b - - 0 1 illegal: No possible last move
3r2bN/Q1nqpB2/1R2Pn1R/B1Np4/Q1Pn3p/5kBq/1N1KR3/q2Rr3 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Nh6 h4 Qf4 g6 Nc6 h5 Qc7 g5 Ng8 h6 Bg7 hxg7 Nb8 Bg2 Qb6 Bf1 Qd8 e4 h5 b4 a5 e5 f5 b6 d6 b7 Kd7 b5 Ke6 b6 Kd5 Na3 Ke4 Nc4 a4 Nb2 d3 Nh3 f4 Nf2+ Kf5 Kd2 a3 Ne4 a2 Nc5 Nh6 g8N f3 g7 Kg4 g6 Nd7 b8R Kg3 b7 Nf5 Nh6 f2 g8Q Nf6 g7 Qe8 Nf7 Nd4 c4 d5 Qa4 Rh6 Bh3 f1Q Nh8 Qd7 Be6 Kf3 Bf7 Qfh3 Rh2 h4 Re2 Rg6 Qf8 Rg5 g8R Rg1 Rg6 Re1 Rb1 a1Q Rh6 Qdf5 Qfe8 Be6 Qa7 Qfg4 Qea4 Qf5 Be8 Bg8 Bf7 Qc8 e6 Qd7 Rf8 Rd8 b8B Qh1 Bg3 Qh3 Kc3 d2 Kd3 d1N Kd2 Ra8 Rb8 Nc3 Rb6 Rc8 Kd3 Rf8 Bd2 Rd8 Rd1 Ncb5 Ba5 Nc7 Kd2
N1Q3bN/2P2BrN/5bR1/2Bk2qR/4pb2/1R2Ppn1/3Bqp1K/nnQ4R b - - 0 1 legal: proof: d4 b5 f4 a5 a4 g5 axb5 gxf4 g4 c5 dxc5 Na6 h4 Nc7 g5 Ra6 h5 Rg6 hxg6 Na6 Be3 Nb8 Bd2 Bh6 Bc1 Bf8 Kf2 h5 Kg2 e5 c4 Ke7 b4 Ke6 e3 d5 g7 f5 c6 e4 b6 f3+ Kh2 h4 c7 f4 c5 a4 b7 h3 c6 a3 b5 a2 g6 d4 b6 f2 Ne2 f3 Nbc3 d3 Nd5 d2 Nef4+ Kd6 Bb5 Na6 b8B Rh5 b7 Qg5 Ba7 Nb4 b8R Be6 c8Q Nc2 c7 Nf6 g8N Rh7 Be8 Bh6 Rb3 Rg7 Nb6 Nd5 Na8 Nc3 Nf6 Nb1 Nh7 Bg8 Bc5+ Ke5 Qf1 d1Q Bd2 Qe2 Qc1 Qd3 Ne6 Kd5 Nd8 Qe2 Nf7 Qd8 Kg3 h2 Nh8 Qg5+ Kh3 Nba3 Rab1 a1B Rb5 Be5 R1b3 Bf6 Ra5 Na1 Rab5 Re7 g7 Nb1 Ra5 Qg1 Rab5 Bf4 Ra5 Qg5 Rab5 Bf7 g8R Rd7 Rg6 Bg8 Rd1 h1N Rg1 Ng3 Rh1 Qg4+ Kh2 Rg7 Bb6+ Kd6 Rh5 Qg5 Bc5+ Kd5 Bf7+
1R1N1bb1/K1p1B2p/2P3BQ/n2Qbq2/k1PQ2qp/2rR4/5R1N/1R3qrN b - - 0 1 legal: proof: c4 g5 d4 f5 a4 b5 axb5 f4 h4 gxh4 e3 Bg7 exf4 Na6 f5 Nc5 dxc5 Bf8 Kd2 e5 Kc3 d5 Kb4 Kd7 Ka5 d4 b4 d3 f4 e4 g4 a6 f6 d2 b6 Kc6 f7 e3 b7 e2 b8N+ Kb7 b5 e1B g5 Nh6 f5 Qe8 g6 Bf2 b6 Qe4 g7 Qe7 g8Q Qd8 f6 Be1 Ba3 Bf2 Nc6 Qd7 Nc3 Ng4 Rh3 Qf5 Rb1 Ne5 Ne4 Bd4 Nf2 Be6 Nf3 Ra7 Qg2 Rg8 Nh1 Rg7 Qf2 Rg1 Nh2 Bb2 Qdf3 d1Q Qd5 Qdg4 Bd3 Ra8 Qfd4 Ba1 Ka4 a5 Nd8+ Ka6 b7 Nc6 b8R Ra7 Be4 Rb7 Rg3 Rb3 Rd3 Rc3 Bb4 Be7 f8R Bg8 Rf7 Bf8 Ba3 Ka7 Kb5 a4 Bb4 Na5 Ba3 Bb2 Bb4 a3 c6+ Bc5 Rf8 a2 f7 a1Q Ba3 Qd7 Bg6 Qdf5 Rf1 Qad1 Re1 Qdf3 Rb1 Qf1 Bb4 Bb6 Be7 Bc5 Re8 Ba1 f8Q Bb2 Qh6 Ba1 Ka4 Ka6 Rf8 Bb2 Rf6 Bd6 Rf7 Bba3 Rf8 Be5 Rf6 Qfh5 Rf2 Qhf5 Bf6 Bf8 Be7 Rg2 Kb4 Rg1 Rg2 Nb7 Rgb2 Nd6 Kc5 Ka5 Rf2 Ka4 Q5e4 Ka3 Qed5 Nb7+ Kb5+ Nd6+ Ka6 Ka4 Bg5 Nb7 Be7 Na5 Ka7
2N5/1ppQbK1n/1PP4r/k1NBRB2/3q1b1q/R2Q4/2QnpB2/1qR2Q1n b - - 0 2 illegal: No proof kernel
3R4/1kB1Q2p/3qrRr1/Rbp1B1NP/q1Bb1p2/5qrQ/4P1Nn/2Q1K1R1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 Nc6 cxd5 Nce7 Ra4 exf4 Ra1 f3 Ra6 f4 Ra1 Nf5 gxf5 Qe7 Ra5 Qg5 Ra1 Qd8 h4 Kd7 b4 c5 d4 Kc7 d6+ Kb8 d5 a5 f6 g5 b6 a4 b7 g4 f7 g3 h5 a3 b5 g2 d7 a2 d6 Ra4 Na3 Nf6 Nc4 Qe8 d8Q Ra8 d7 Ne4 Bb2 Nd2 Qe7 Qd8 Nh3 g1R Ng5 Bh6 f8R Ra3 Qc1 Bg7 Rf6 Re8 Ne3 Kc7 b8B+ Kb7 b6 f2+ Kd1 Bh8 B2e5 Nf3 Ng2 Nh2 Bbc7 Re3 Kd2 Rg8 Kd1 Rg6 Kd2 Qf8 d8R Bd7 Kd1 Bb5 Kd2 Ka6 b7+ Ka7 Bb6+ Ka6 b8Q Re4 Qbd6 Re3 Qee6 Kb7 Bc7 Rg3 Qd3 Qd6 Qe7 Re3 Bc3 Re6 Be5 Qb6 Qh3 Bg7 Nh4 Rg3 Bg2+ Qc6 Bf3 f1Q Bd5 Qf3 Bc4 Qd6+ Ke1 Bh8 Rg1 Bg7 Rb1 a1Q Ng2 Qa4 Ra1 Qab3 Ra5 Qa4 Bb2 Bh8 Rf5 Bd4 Rf6 Be3 Be5 Bd4 Qd1 Qaa3 Qa1 Qa4 Qc1
rR3q2/pNr1pQn1/bk4p1/1P2P3/1Rq3qN/3QrnQ1/4BNR1/KRB5 b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 g6 a4 Kd7 axb5 Bg7 g5 Ke8 h4 Bd4 h5 Bg7 h6 f6 hxg7 fxg5 Ra4 g4 Ra3 Bf5 Ra1 Bc8 e4 Kd7 d4 h5 Kd2 c5 Kc2 Kc7 f4 h4 b4 c4 Kb2 g3 e5 h3 b6+ Kb7 d6 g2 b5 h2 d7 Na6 f5 Rh5 d5 Rh4 f6 Rh5 d6 Rh3 f7 Rh5 f8R Rh6 Qb3 Nc5 Ra2 c3+ Ka1 c2 Nf3 g1R Be2 Ne4 Nbd2 Ngf6 g8Q Nh5 Qgf7 Ng7 Nh4 Ng5 Qg3 Nf3 Ne4 Rf1 Rg1 h1Q Nf2 Qh3 Rh8 Qe8 d8Q Qg4 d7 Qf8 Rg2 Rd1 Ra4 Rd4 Rb4 Rc4 Rb1 Rc7 Rh7 Rh5 Rh6 Rf5 Rh5 Rf6 Rf5 Rfc6 Rf4 Rc3 Rfb4 Re3 Bb2 Kb8 b7 c1Q Ba3 Qcc4 Bc1 Nd4 Qde8 Nf3 d8N Rd7 Qf5 Kc7 b8R Ba6 Nb7 Kb6 Qef7 Rc7 Qd3
1N1N2R1/1k6/qnqBKQBQ/r5Q1/1R2pB2/r2Q1nP1/1qnpPp2/2Nb4 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Bg7 axb5 Bf6 Bg2 Be5 Bf1 Bg3+ hxg3 Bb7 Nf3 Ba6 Ng1 Bc8 Kd2 e5 Kd3 h5 Kc4 a5 Kd5 f5 b4 e4 c4 h4 c5 h3 g6 d6 b6 Kd7 b7 Kc7 c6 a4 g5 a3 g7 d3 g6 d2 b5 a2 Nc3 f4 Rb1 a1N Nf3 h2 Rb4 Nc2 Ng5 f3 Nf7 f2 Na2 Nh6 g8Q Ra3 g7 Nd7 b8N Qe8 Qf8 Ng4 g8Q Nge5 Qh6 Nf3 Bh3 Kb6 c7 Kb7 Qf6 Rh5+ Qgg5 Qh8 Qh6 Qb2 Ke6 d5 b6 d4 Bf5 d3 Qgf6 Rg5 Bg6 Rga5 Qfg5 Na1 Qb3 d1Q Bf4 d2 Qd3 Qdc2 Nc1 Qc6+ Bd6 Nc2 Qf6 Ka8 Qfg5 Ba6 c8Q Bb5 Qcd8 Ba4 b7+ Ka7 Qdf6 Nb6 Rf1 h1Q Re1 Qg2 Rh1 Qg1 Rh4 Qh2 Rg4 Qh1 Nd7 Qh2 b8B+ Kb7 Bc7 Qh3 Nb8 Qh5 Qge3 Qhb5 Qeg5 Qcc3 Bf4 Qa6 Bcd6 Qc6 Bh7 Ne5 Qgh4 Ne3 Rg8 Nf3 Q4g5 Bd1 Bg6 Nc2 Nd8+
q1R3n1/B2KNBNN/QR1PQ1RB/3p1r2/p1q1Rb2/3P4/p1b1b3/1k1n1n2 b - - 0 1 legal: proof: e4 d5 a4 b5 h4 bxa4 c4 f5 exf5 g5 hxg5 a5 c5 Ra6 Rh3 Kd7 Rh1 Rd6 cxd6 Ke8 Ke2 Kd7 Kf3 Kc6 Kg4 Kc5 f4 Kb4 g6 e5 d3 c5 g7 e4 Nc3 a3 Be2 c4 Nb5 a4 Nc7 a2 Nh3 e3 Ne6 h6 f6 h5+ Kf5 c3 g4 c2 f7 Kb3 g5 h4 g6 Nd7 Re1 Qe8 Nhg5 h3 Bh5 h2 Qe2 h1B Nh7 Ngf6 g8N Qe7 g7 Qe8 Ne7 Ba6 g8R Bc8 Ng7 Bf3 Ke6 Ne4 f5 Nc3 f6 Nd1 Bd2 Ba6 Rc1 Bc4 Bg6 Bh5 Qg4 e2 Bh6 Qa8 Qf5 Nb8 Qe4 Nc6 Kd7 Bg4+ Qe6 Bf3 Rg1 e1Q Rg4 Qc3 Re4 Be2 Bh5 Kb4 b3 Ka3 b4 Kb2 b5 Bb3 b6 Qb4 b7 Qc4 Ng5 Rh7 b8B Rh8 Ba7 Rh7 Ra1 c1N Bg6 Rh8 Nh7 Bc2 Bh5 Nb3 Rc1 Qb8 Nc8 Be7 f8R Qa8 f7 Bg5 Ne7 Nd2 Rc8 Nf1 f8Q Be3 Bf7 Bf4 Ng5 Rh7 Qd8 Rh8 Qa5 Rh7 Qa6 Rh8 Nef5 Ne7 Rc6 Rh7 Rgc8 Rh8 Nh7 Rf8 Ra1 Ng8 Ne7 Qb4 Be8 Rf5 Bf7 Qc4 Rc1 Bb3 Rc2+ Kb1 Rd2 Bg4 Rg2 Be2 Rg6 Bc2 Rb6+
3bn1b1/B1p1q1Qr/k3B3/1RP2nn1/2p1R1qp/2NN2PR/1B4bQ/K3N2B b - - 0 1 illegal: No proof kernel
r1bq4/1Q2Q1N1/1rBb1R2/3N1n2/pkpNq3/1P3q2/P2KB1bp/B1R1Q2Q b - - 0 1 legal: proof: h4 e5 c4 b5 g4 bxc4 d4 g5 dxe5 Bc5 f4 Bb6 h5 Nc6 h6 Bc5 fxg5 Ba3 g6 Nce7 g5 Nf5 Kd2 Ng7 hxg7 Bd6 Ke1 Bf8 e4 Ke7 e6 f5 b3 h5 e5 a5 Nc3 c5 Kd2 d5 Nf3 d4 Bb2 d3 Be2 a4 Rc1 f4 Rf1 h4 Nd4 f3 Ba1 h3 Qe1 Nh6 g8Q f2 g7 h2 Qh7 Nf5 Qh4 Rh6 g8Q Rg6 Qe4 Rh6 Qh1 Rg6 Qh8 Rf6 Qh4 Rg6 Rg1 f1B Rg2 Rh6 Rf2 Rf6 g6 Bg2 Kd1 d2 g7 Qc7 g8Q Qd8 Qe4 Rg6 Kc2 Rf6 Qg5 d1Q+ Kb2 Qd3 Rf3 Qe3 Kc2 Qf4 Rf1 Qf3 Qd5 Qe4+ Kd2 Qf3 Ncb5 Qe4 Nc7 Qf3 Qb7 c3+ Kc2 c4 Nd5+ Ke8 e7 Rb6 Kd1 c2+ Kd2 Kf7 e8N+ Be7 Qa6 Bd6 e6+ Kf8 e7+ Kf7 Nc6 Ke6 Nd4+ Kd7 Ng7 Qe4 Nde6 Kc6 Qb7+ Kb5 e8B+ Ka5 Bc6 Qf3 Ndc7 Kb4 Qe7 Ne3 Qf6 Qh3 Qe7 Qg3 Rf6 Nf5 Rd1 Qg4 Nd4 Qf3 Qeg1 c1Q+ Ke1 Qh6 Rc1 Qhh8 Kd2 Qh4 Qe1 Qhe4 Nd5+
N2r2n1/nBRp1k1P/3RpB1b/4QqQ1/3P1Np1/5B2/1Rrq1r1R/Kn5N b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 b5 gxh5 Ba6 c4 axb4 Bg2 b3 Bh3 b4 Bf1 Bb5 cxb5 Rh7 Bd3 Rh6 Bf1 Rh8 a4 g5 f4 c5 d4 g4 Kd2 b2 Kc2 e6 h4 c4 h6 c3 h7 Bh6 a5 Ne7 f6 Kf8 a6 Nf5 h5 Ng7 f5 Qe8 b6 Qf7 b7 Qg8 a7 Bd2 f7 Nc6 b8R+ Ne8 h6 Qg6 Rh2 Qf6 Ne2 Qh4 Ng3 Qd8 Ba6 Nd6 Nh1 Bg5 Bb7 Be3 Na3 b1N Qd2 Ne7 Nc4 Qc8 Ra6 Bg1 Qg5 Qe8 Nb6 Rg8 h8Q Nb5 h7 Qc8 Qe5 Be3 Kb3 c2 Ka2 b3+ Ka1 Qd8 Rc8 Rg6 Rc7 Ng8 Bf3 Rc8 a8B Rf6 Bab7 Na7 Na8 Rb8 Bd2 c1R Rd6 Rc2 Bb4 Ke7 f8N Kf7 Ng6 Bc1 Nf4 b2+ Ka2 Qe7 Be1 Rd8 Bh4 Rh6 f6 Qf8 Rd5 Qb4 Rd6 Be3 Nf2 Qd2 Nh1 Kf8 f7 Rf6 Nd3 Ke7 f8R Bf4 Qh5 Bh6 Qhg5 Rb8 Rfc8 Kf7 Nf4 Rf5 Rc5 Rf6 R8c7 Rd8 Rb5 Nc3+ Ka3 b1Q Rb2 Qf1 Kb3 Nb1 Ka2 Qb5 Qd5 Qbd3 Qge5 Qf5 Ka1 Rg6 Bf6 Rg5 Re2 Rh5 Qa5 Rh2 Qac5 Rf2 Qb5 Rf1 Rh2 Rf2 Qa5 Qfd3 Qg5 Qf5 Qe5
1q2kN2/Q4Pb1/BpN2p2/1Q2pN2/Rn6/1P3Q2/2qrn2B/1qRbRnRK b - - 0 1 illegal: No possible last move, all moves rejected
4kqb1/1B1NPNp1/p5rb/Q2r4/KR2p1R1/2BNBqPq/1R1Qb3/6Nn b - - 0 1 illegal: No proof kernel
3rQq2/1nr1Bp1r/p1b2KB1/4B1Q1/Nqk4P/2nR1P1n/RNQ1BR1p/8 b - - 0 1 illegal: No proof kernel
1R1n3K/2p1pN2/4npb1/3r1Q1b/2nrP3/3N1P1k/1BBQ1R1r/R2N1NbQ b - - 0 2 legal: proof: c4 a5 b4 g5 a4 d5 cxd5 b5 h4 gxh4 axb5 a4 Nf3 Qd6 Ng1 Qa6 Rh3 Qa5 bxa5 Be6 Rh1 Bc8 d4 Kd7 Kd2 h5 Ke3 a3 Kf4 a2 Kg5 h3 g4 h4 d6 Ke6 d7 h2 d8N+ Kd7 b6 h3 d5 f6+ Kg6 Rh4 b7 Bg7 a6 Ra7 d6 Bh8 g5 Ra4 Kh7 Rd4 g6 Nc6 b8R Na5 g7 Nh6 g8Q Nc4 Qg5 Bg7 Qdd2 Nf7 Nf3 Bh6 Nc6 Ke6 d7 Nd8 Nc3 Rb7 a7 Rb5 a8Q Rbd5 Qh5 Be3 Kh8 Bb7 Rg1 h1B Bb2 h2 Nce5 Bg2 Qg6 h1R+ Nh2 Bf3 Nd1 Bh5 Nd3 Bc8 Rg2 Ba6 Qg7 Kf5 f3 Bg1 Rf2 Bb5 e3 Ba4 Be2 Bc2 Nf1 Rh2 Qh7+ Kg5 Qaa5 Kh4 Qh6 Kh3 Qh7 Nb7 d8N Bb1 Nf7 Nd8 Nc5 Bg6 e4 Bf5 Bd3 Bg6 Rb1 a1N Bc2 Nb3 Nd3 Nc5 Ra1 Nce6 Qb5 Rd7 Qbg5 R7d5 Qg2+ Kh4 Qh1 Kh3 Qhh6 Rd7 Qhf4 R7d5 Qf5+
4Q3/bB3rrk/R1b1p2r/1q5n/1N1B1BNK/2Q2QRp/pR3rPP/1B2r3 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 f4 c5 fxg5 d4 Ra4 Na6 Ra1 Nc7 d3 Nd5 exd5 c4 Qh5 cxd3 Qf3 Qd6 Qd1 Qd8 Kf2 f5 Kg3 Kf7 b4 Kg6 c4 h5 c5 a5 c6 d2 b6 e6 d6 d3 b5 f4+ Kh4 f3 b7 a4 b8Q a3 c7 f2 b6 Ne7 d7 Kh7 b7 Nc6 Nf3 Nb4 Bb2 Bd6 Nc3 Ra7 Na2 Qe8 d8Q Nd5 Bd4 Nf4 Nb4 Bc5 Ne5 Qb5 Qf6 Bd7 c8B Bc6 Qf3 d1R Ng4 d2 Qa8 Rb1 b8B d1R Bb7 Rd2 Be2 f1R g6+ Kg8 g7 Rh6 Ra2 Rbe1 Bd3 Rdf2 Bb1 Bb6 Rc2 Kh7 g8R Bc5 Bd6 a2 Qe8 Bb6 Rg6 Bc5 Rc3 Bb6 Ra3 Bc5 Ra6 Bb6 Ba8 Rg7 Bb7 Ba7 Qc3 Ne2 Qff3 Ng3 Qfe3 Rff7 Qf3 Rf2 Rf1 Re4 Bf4 Re1 Kh3 h4 Rg5+ Rc2 Rf2 Nh5 Rg6 Rcc1 Rb2 Rc2 Ne3 Rce2 Kg4 h3 Kh4 Rf2 Rg3+ Qd3 Ng4 Qf5 Rc2 Qb5 Rb2+
3q2nn/3N1p1b/Kp1RQ1k1/1PPR1b2/2b1N1pB/2r2b1R/1R5Q/bB2BQ2 b - - 0 1 illegal: No proof kernel
1q4N1/k1np3K/1N1QRbQ1/3Bb3/p1p2P2/Qn1P1brB/1BRQ4/3Nb1b1 b - - 0 1 illegal: No proof kernel
3b2N1/N1Q2Qb1/2npR1Nk/B1pR4/P2bb1B1/2p2B2/3PK1n1/qb1rN1R1 b - - 0 1 illegal: No proof kernel
r1n5/1npn4/1kPN3R/1P2BRBq/1rN1B1r1/1N1R3p/p3KB2/4QQbr b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 c4 d5 e4 Kd7 f4 a5 b4 h5 f5 a4 c5 d4 c6+ Kc8 e6 d3 e7 a3 e8N a2 f6 d2+ Ke2 h4 f7 Ra5 e5 Qg5 e6 Ra8 b6 Ra5 b7+ Kd8 b5 Qd5 g5 Qd6 g6 Qc5 g7 Qa3 Nc3 Ra6 Nf3 g1R Nd4 g2 Nd5 Qh3 Ne3 Nd7 b8B Ra4 e7+ Kc8 Nb3 Rb4 Ba7 Nc5 Bb6 Nb7 Nd6+ Kb8 Rb1 Nf6 g8R Nd7 Rg5 Ka8 Qe1 d1N Rf5 Nb2 Qf2 Bg7 f8B Bd4 Bg7 Na4 Be5 Re8 Ba7 Nab6 Ra1 Rf8 e8Q+ Nc8 Qf7 Bc5 Qe1 Rg8 Rh2 Rh1 Bd2 g1R Bg2 Rf8 Be4 Rg4 Rd1 Re8 Bc1 Rf8 Rd3 Rd8 Nc2 Bg1 Bf2 Re8 Ne3 Ka7 Qc4 Kb6 Bd2 Ne7 Qcc1 Ra8 Qf1 Nc8 Qce1 Rg7 Rg2 Qh2 Rg6 h3 Rh6 Rg4 Bf6 Qe5 Bc3 Qe6 Bce5 Qe8 Bg5 Qh5 Nec4#
n2qR1N1/6p1/n7/Np2rB1R/2rn2K1/QpQnQ1B1/bPP1kNR1/1Q3r2 b - - 0 1 illegal: No proof kernel
4R2n/1p1KRBR1/2r2N2/3Pb1p1/n3kB1b/2Q1bpP1/B1q3QQ/1B1N1bn1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 e5 fxe5 d5 bxa5 Ra6 c4 dxc4 h5 Rg6 hxg6 Qd4 Rh5 Qd7 Rh1 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 a4 c5 d4 c3 a6 c4 g7 h4 a5 h3 a7 c2 a8Q f6 a6 h2 a7 c3 Qd3 Qd6 Nh3 Qa6 Nf2 Rh4+ Ng4 Nc6 Qb8 Rh6 a8Q Nb4 Bf4 Qc4 Qa2 c1B e3 c2 Qc3 Bd7 Bd3 Bb5 Qab2 Ne7 g8B+ Kd7 e6+ Kc6 Qa2 f5+ Ke5 Na6 e4 Bb2 Nf6 c1B Re1 h1N Re2 Nc8 e7 Nd6 e8R Nf2 Rc2 Qc5+ Ke6 Be3 e5 Nh3 Bf7 Ng1 d5+ Kb6 Bc4 Be7 Bb3 Bf1 Kd7 Bf8 Bg6 Nf7 e6 Bd6 e7 Nh8 Re2 Bc7 Rg8 Qc4 e8B Kc5 Bef7 Bb6 Bh7 Bf2 Re1 Bh4 Rg7 Ba7 Re8 Rg6 Qg3 Be5 Nc3 Kd4 Nd1 Qc2 Qh2 Kd3 g3 Be3 Qc8 Kd4 Qb2+ Kd3 Ba2 Nc5+ Kd8 Na4 Kd7 Qc3 Qbg2 Qc2 Rb1 Rh6 Rb6 Rg6 Rbe6 Kd4 Ng4 Kd3 R6e7 Rc6 Qd2+ Ke4 Qc7 Rg6 Qcc3 Rc6 Nf6+ Kf3 Qcd4 Qc1 Q4b4 Bb8 Bc7 f4 Bhb1 Qc2 Be5 Bd6 Qbc3 Bc7 Nh5 Ke4 Qdg2+ f3 Bf4+ Be5 Nf6+
2r5/1K1QN1r1/1b1Q1BBQ/pn2r2R/1n1NnPpk/5Q1N/Rp4PR/1r4q1 b - - 0 1 illegal: No possible last move, all moves rejected
4b3/2p1NRQr/r1bbb1K1/1P1pp3/3N2N1/1R2P1B1/qN1n3R/k1QBQ1r1 b - - 0 1 illegal: No proof kernel
q1Q1N3/2K5/r1n1B3/P2ppR1r/R1RQ1bRr/1n1P1B2/2pn1N2/1rk3BQ b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 b5 hxg5 Ba6 c4 axb4 Qg4 b3 Qe2 b4 Qd1 Bb5 cxb5 Ra6 Nc3 Ra3 Nb1 Ra8 Ke2 Kf7 Kd3 e5 Kc4 c5 Kd5 h5 g4 b2 a4 b3 f4 d6 a5 c4 f6 Kg6 f5+ Kf7 g6+ Ke8 g5 Kd7 b6 h4 f7 c3 b7 h3 g7 h2 f6 c2 g6 Qc7 d3 Qd8 Ra4 Be7 f8Q Qb6 f7 Rh5 Na3 b1N Nh3 b2 Nb5 Rf5 Nc7 Nh6 g8B Bg5 g7 Qa6 Nf2 Nc6 b8Q Bf4 Qa7 Nd2 Bg2 b1R Qd4 Rh5 Ne8 Nf5 Bf3 Qc8 Rg1 h1R Rg4 R1h4 Qh1 Ra6 Ba3 Qa8 Bc5 Kc8 Ke6 Kb7 Kd7 d5 Ba7 Ne3 Qfc5 Nec4 f8R Nb3 Be6 Ncd2 g8R Rb6 Qcc3 Ka6 Rc4 Kb5 Rf5 Ra6 R8g6 Nb4 Rh6 Ka4 Kc7 Ka3 Rhg6 Be3 Re4 Nc6 Rgg4 Bg5 Qb4+ Ka2 Qb8 Bf4 Qc8 Ka3 Qe3 Kb2 Ra4 Rd1 Rec4 Kc1 Qd4 Nb1 Nh3 N1d2 Qe4 Kb2 Bg1 Rb1 Qd4+ Kc1 Nf2
5BrN/2bk3R/r2rbp2/2R1Rbb1/1Bp5/5pq1/NBP1n1QP/1K1B1QN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 a4 exf4 axb5 c4 Kf2 Na6 Ke1 Nc5 dxc5 Qc7 Qd6 Qb6 Qd1 Qd8 Kd2 d5 e4 g5 b4 a5 b6 a4 c6 d4 b5 a3 c7 a2 b7 d3 b8B f6 h6 g4 h7 g3 b6 g2 e5 f3 e6 Nh6 b7 Qe7 Bb2 Qd8 Kc1 Rg8 h8N Nf5 e7 Ra6 Be2 Ng3 Qf1 Be6 c8R Kd7 Bd6 Qc7 Bb4 Rd6 b8B Bg7 Bd1 Bh6+ Bd2 Bf4 Nc3 Bg5 Rb1 a1R Na2 Rb6 Ba7 Rd6 Bad4 Qb8 Rc5 Qc7 Ba3 Ne2+ Kb2 Qb8+ Bdb4 d2 Be5 Rd5 Bc3 Qg3 e8Q+ Kd6 Qf8+ Kd7 Qh6 Rd3 Qg6 Rd6 Nh3 g1B Be5 B1e3 Ng1 Bgf4 Qg4 Bg5 Qgh3 Bef4 Qhg2 Rd4 Bd6 Rd5 Bf8 Bc7 Bc3 Rd6 Bab4 Qf2 Nc1 Ra3 Na2 Raa6 Ra1 Qe1 Kb1 Qg3 Bb2 Bb8 Bc1 Nd4 Qff2 Rac6 Nc3 Kd8 Ra7 Ra6 Rh7 Bc7 Bb2 Ke8 Nh3 Kd8 Be2 d1B Re1 Kc8 Qff1 Kd8 Bd3 Be2 Na2 Kc8 Ng1 Kd8 Bf5 Bd3 Ree5 Be4 Rh4 Kd7 Bh7 Bc6 Bd3 Be4 Be2 B4f5 Bd1 Ne2 Rh7+
3Bn3/1PpB2N1/Q4pKR/rQ2b1N1/1b2p2B/1nn2P1b/2Rb4/q1BkNQ2 b - - 0 1 legal: proof: c4 b5 e4 a5 a4 h5 axb5 d5 exd5 Bh3 d4 Bc8 g4 hxg4 c5 Kd7 d6 Ke6 d5+ Kf5 d7 Kf6 Bg2 Ra6 Bf1 Rd6 cxd6 Kg6 Na3 Kf5 Nb1 Kf6 Kd2 Kf5 Kd3 e5 h4 g5 b4 g3 h5 g4 h6 a4 f3 g2 h7 g3 b6 a3 b7 a2 b5 Qh4 d8B Bd7 b6 Qb4 Na3 Qb2 Nc2 Be7 Ne1 Nf6 Nh3 g1N Ng5 g2 Rh6 Nc6 b8Q Ne2 b7 g1B Qa7 Bc5 Qa6 Be3 Bh3+ Kf4 Rb1 Qa1 Rb2 Bc8 d7 Na5 d6 Ne8 Rc2 Bd2 Bf5 Rg8 h8Q Nc3 Qb5 Rf8 Qf6 Nb3 Qe2 Rh8 Qf1 Bf8 Be7 Kg3 d8B e4+ Kc4 Kf4 d7 Ke3 Qfa6 Rh7 Bf6 Bb4 Be6 Na4 Kd5 Nc3+ Ke5 Rg7 Nh3 Rg5+ Bf5 Rh5 Bh4 f6+ Ke6 Rg5 Kf7 Rh5 Be7 Rg5 d8N Bd7 Ne6 Rh5 Qba4 Bc8 Bg4 Ra5 Nhg5 Bd7 Kg6 Bc8 Qh3 Bd7 Q4b5 Bc8 Nd3 Ke2 Ng7 Kd1 Ne1 Be6 Qhf1 Bd7 Bh5 Bh3 Bg4 Qb1 Bd7 a1B Bd8 Bb2 Qa8 Qa1 Bg3 Nb1 Qaa6 Be5 Bf2 Nc3 Bh4
2BR3K/1Q2pQB1/2b3NR/qBp5/bP2r3/1QQ1p1rr/1bP5/N1N2nbk b - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f4 dxe4 fxg5 Nh6 h4 Ba6 g4 Qd6 g6 Qf4 g5 Bc8 h5 Qd6 Qf3 Nd7 Qd1 Ne5 g7 Ng6 hxg6 Ng8 Rh6 Qd7 Rh1 Qd8 Kf2 Kd7 Kg3 Kd6 Kf4 Kd5 d4 f5 b4 c5 b6 a5 b7 h5 b8Q h4 Qf3 h3 Bb5 a4 Bb2 h2 Ne2 a3 Nd2 a2 Nc1 Rh6 Ndb3 Rh3 Qc3 Nf6 g8Q+ Be6 g7 Ng4 g6 Ne3 Kg5 f4 Qa7 f3 Qf7 f2 g8B f1R g7 Rf4 Kg6 Nf1 Qa6 Rg3+ Kh7 Qa5 Kh8 e3 Qc8 Ke4 d5 Kf3 d6 Kg2 d7 Re4 d8N Bd7 Ne6 Bc6 Rb1 a1B Qb7 Bd7 Bh7 Re8 g8Q Bh6 Bf5 Bf4 Nf8 Rd8 Be2 Ba4 Bb5 Rd5 Bc8 Rh5+ Qgh7 Rhh3 Ng6 Nd2 Rd1 Nf1 Rd8 h1B Qfc4 Bg5 Qe6 Bh4 Qhf7 Kh2 Ba3 Bb2 Na1 Bg2 Qb3 Kh1 Na2 Rg5 Re1 Rgg3 Nc1 Rd4 Re2 Bc6 Rf2 Rdg4 Rf5 Re4 Rh5 Rg2 Rh7 Bf2 Rh6 Bg1 Qcf6 Bc3 Bb2 Rg3 Qd4 Be1 Qdd3 Bd2 Be5 Bc3 Bg7 Bb2 Qdc3
1nr4R/5N2/3b1Bbp/1bQ1rNr1/P2p1B1K/k2B1RQQ/3p1Q1P/4rNq1 b - - 0 1 legal: proof: d4 f5 b4 c5 e4 cxd4 exf5 a5 bxa5 Nh6 g4 Ra7 f4 Ra6 g5 Ra8 f6 Ng8 f5 Qc7 Ke2 Kd8 Ke1 Nc6 Qg4 Ne5 Qd1 Nf7 g6 Qb6 gxf7 Kc7 Bd2 Kc6 Bc1 Qd8 Kf2 Kc5 Kg3 Kb4 c4 d5 c5 g5 a6 b5 a7 e5 c6 d3 c7 h6 Qf3 e4 Ne2 g4 Kh4 d2 Nd4 g3 Bd3 g2 Qg3 e3 Rf1 g1R Rf3 Bg7 f8Q+ Ne7 f7 e2 f6 e1R Nf5 Bd7 c8N Qb6 Ncd6 Rc8 a8Q Nc6 a4 Rce8 Qc8 R8e5 Ra2 Nb8 Rc2 Bc6 Qe6 Bd7 Rc8 Qc5 Qfe7 Bf8 Rd8 Bc6 Qc7 Be7 f8B Rg2 Bg7 Qg1 Qf2 Rg5 Nf7 Bd6 Qg3 Be8 Qc5+ Kb3 Qec8 b4 Qcf2 Bb5 Qcc5 Nd7 Qf1 Rhe8 Qfh3 Nb8 Qcf2 R8e7 Rh8 Re8 Na3 Rg8 Nc4 Rc8 Nce3 Ka2 Nf1 b3 Ba3 d4 Bb4 Be7 Bd6 b2 Bc7 b1B Bd6 R5e4+ Bf4 Kb2 N7d6 Re6 f7 R6e5 f8Q Ka3 Nf7 Bd6 Bf6 Ba2 Nd8 Bf7 Qe7 Bg6 Nf7 Qg2 Qa7 Qg1 Qc5+
B4rQR/Pp1B1N2/B3bQNN/k1B3q1/2pRbn1b/1rb3p1/rP6/3K2R1 b - - 0 1 illegal: No proof kernel
RNR5/Q1Q1p3/2Q1KB1k/r2QR1p1/3q2p1/bq1n2P1/B1PN1Bb1/1qn4q b - - 0 1 illegal: No proof kernel
1q3k2/1p1q2N1/2Q2K2/2qpBPN1/2Rq2pr/2Q2BP1/3n2NR/rR1bbBN1 b - - 0 1 legal: proof: e4 a5 b4 axb4 d4 c5 dxc5 g5 h3 f5 exf5 Nc6 h4 g4 Qd5 Nd4 Qd6 Ne6 Qd1 Ng5 hxg5 Qb6 Ke2 Qa5 Ke1 Qd8 Kd2 h5 Ke3 e5 Ke4 h4 c4 b3 f4 d6 a4 h3 g3 b2 c6 h2 a5 Qf6 g6 Qh4 a6 Qh5 c5 Bg7 c7 Qg5 c6 Ne7 a7 Qh4 f6 Rh5 f5 Bf8 g7 Qh3 g8B Ng6 Bd5 Bd7 Bf4 Nh4 Nd2 b1Q+ Qc2 Qc1 Qc3 Nf3 Rb1 Rh4 f7+ Ke7 Nc4 Nd2+ Kd3 e4+ Kd4 e3 c8Q e2 c7 e1Q Ne3 Bh6 f8N Qf2 Bf3 d5 Ke5 Ba4 Nh7 Bd1 Ng2 Kf7 Qc6 Qcc5 Ng5+ Kg7 Ke6 Qfd4 Bd6 Qb5 Qc3 Qc5 Qd7+ Kg8 Be5 Kf8 Qc6 Bg7 c8N Bf6 Nd6 Bd8 Ne8 Ba5 Kf6 Bb4 Ne2 Ba5 Rg1 h1Q Ng7 Q1h2 Rh1 Qhg1 Qb5 Qa4 Rh2 Qgd4 Qbc4 Qd7 Ng1 Nb3 Qc1 Be1 Q1c3 Nd2 Qb5 Rd8 a8R Re8 Raa1 Ra8 Ra4 Ra7 Rc4 Ra1 Rh1 Qh2 Ne3 Qf2 Rh2 Qa7 Qa6 Qb8 Ng2 Qc5 Qe6 Qfd4 Qc6
1B2b3/K3pNp1/RP1qP1r1/q1k2qQ1/1qnp3r/3B1Qn1/4B2N/N2N1Q1R b - - 0 1 illegal: No proof kernel forced: wxDB
1B2b3/4NqB1/QRn1B1q1/1p5R/3rkn1N/3ppRRr/r2PPr2/3QK1N1 b - - 1 2 legal: proof: h4 g5 a4 b5 g4 c5 f4 e6 f5 c4 f6 c3 a5 Bg7 fxg7 cxb2 hxg5 Nf6 g6 Ng8 Nc3 b1N g5 Na3 Nb1 Nc4 Nh3 Bb7 Ng1 Nb6 axb6 Bc8 c4 Ke7 c5 a5 c6 Kd6 c7 Ke5 b7 h5 Nh3 d5 Rh2 f5 Nf4 d4 Ra3 d3 Ng2 a4 Rh3 f4 Bb2+ Ke4 Rc3 a3 Rc2 f3 Rc5 e5 Bc3 a2 Rd5 a1Q Nh4 Bd7 c8Q Qa6 Na3 Nc6 b8B Be8 Nc2 Nge7 g8R Qc7 g7 Ng6 Nd4 Nf4 g6 Qf7 Qb7 Qb6 Qa6 Rh7 Rg3 Rh6 Bh3 f2+ Kf1 Ra7 Ndf3 Rd7 Rc5 Rd4 Rf8 Rh7 g8R Rg7 Nf5 h4 Ng1 Rh7 Bg4 h3 g7 h2 Nh4 h1R Be6 Rh3 Rh8 Rh6 g8N Rg6 Rh6 Rg4 Qda1 Ra4 Qb1 Ra2 Qd1 Nd8 Qc2 Ng6 Ngf3 Kf4 Bc8 Qf5 Ba7 e4 Bg7 e3 Ne7 Qe6 Rf6 Qf7 Rb6 Qe4 Ng1 Nc6 Qd1 Qef5 Rh5 Q5e6 Kg2 f1R Rcd5 Qef5 Rd6 Qg5 Rf6+ Ke5 Bd7 Rd4 Bb8+ Ke4 Be6 Rf5 Ngf3 Rf4 Kf1 Qf5 Ke1 Qg4 Ng1 Rf2 Rff3 Nf4 Nc8 Qgg6 Ne7
n1bn3R/1pRN1R2/rP6/4N1Kn/Qpq1Rn1B/Q3q3/BrpkP1Q1/N7 b - - 0 1 illegal: No proof kernel
r6Q/PpN4Q/1P1K1Nqb/1R2NBn1/1B1n4/Rr1rRq2/p1p4B/k2B3r b - - 0 1 illegal: No proof kernel
2Kb3r/2Q5/1Q1NQppB/NR3R1q/q2B1QPp/r4P1R/k2nB3/nq5q b - - 0 2 legal: proof: c4 d5 cxd5 Kd7 a4 b5 axb5 Na6 e4 Nb8 d6 Ke6 d7 Kd6 d4 Ke6 h4 Nh6 d5+ Kf6 h5 Ng4 h6 Bb7 d6 Bd5 exd5 Nxh6 Qb3 Ng4 Qd1 Nh2 Kd2 Ke5 Kc3 c5 Kc4 h5 b4 a5 g4 g6 f3 e6 b6 a4 Kb5 a3 b7 f6 Be2 h4 Nh3 c4 Qe1 Kd4 Ng5 a2 Ne4 c3 Na3 e5 Nc4 c2 Na5 Qc7 d8Q Nd7 b8Q Qa7 Kc6 Be7 b5 Qa6+ Kc7 Nf1 b6 Qb5 b7 Nd2 Rh3 Nc5 d7 Ncb3 Nd6 Kc3 Kc8 e4 Rb1 Ra7 Qc7+ Qc5 b8Q a1Q Qb6 e3 Qg3 Ra6 Qf4 Qa4 Qg8 Na1 Rb5 Bd8 Qe6 Ra7 Ndc4 Ra6 d6 Qh5 Rf5 Be7+ d8R Ra7 Rf8 Bd8 d7 Ra6 Ba3 c1Q Re8 Ra7 Bf8 Qb1 Bh6 Ra6 Qca7 Kc2 Nd6 Kc1 Qbc7+ Kb2 Qab6+ Ka3 Qg8 Ra7 Ree5 Qh1 Qe8 Ka2 Rb5 Qb1 Bd3 e2 Qe6+ Qab3 Bc4 e1Q Be2 Qh1 Nc6 Be7+ d8B Ra4 Na5 Ra3 Qcd7 Rh7 Bc7 Bd8 Bb8 Qc4+ Qdc7 Rh8 Ba7 Qcb3 Qbb7 Qc4 Bd4 Qcb3 Qbb6 Qc4 Qee5 Qa4 Qe6+
r1Q1BB2/1KnBn2p/Q2q1q2/4RpRn/2P1QpB1/3RbNN1/k4P2/2n1r3 b - - 0 1 illegal: No proof kernel
K1n1B1Q1/RBkBb1Pp/qR4pQ/n2rqR2/1p2N1rP/5N2/4r3/4r1BQ b - - 0 1 illegal: No proof kernel
r7/6p1/1kRP2r1/1B1Rb1Nq/Q3pRPB/B4b2/2Kn2Np/qN1r1NQr b - - 0 1 illegal: No proof kernel
bqN3RB/3BbkR1/2Nq1pnK/5Bp1/4PNBb/b4Q1r/2R2pP1/1nQ5 b - - 0 1 illegal: No possible last move, all moves rejected
3r1R1K/4np1p/2Q2N2/PBr1q3/4kPB1/1BBrrq1R/2p1N2b/1Q3NnR b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 h4 g5 hxg5 b4 Nd2 Ba6 Nb1 a4 b3 Bb5 cxb5 axb3 Kd2 Ke7 Ke3 Ke6 Ke4 c5 g4 d6 f4 b2 a4 b3 g6 c4 a5 c3 g7 c2 g5 Qc8 b6 Nh6 g8R Nd7 g6 Nf5 g7 Qc3 b7 Ne7 b8Q Qe1 Rh3 Nc8 Qb7 Qf2 Bd2 Qb6 Bc3 Ra6 Qc6 Qc7 Nd2 Ne7 Qb1 Ra8 e3 Rd8 Be2 Qb7 Kd4 Kf5 e6 d5 Nf1 Ne5 Bb5 Qb8 Ne2 Qc7 Qa2 b1R e4+ Kf6 Qb2 Re1 Qb1 b2 Bc4 Qb7 Bb3 Qb5 Nc1 Re3 Ne2 Ng4 e5+ Kf5 Ba4 Nh2 Bb3 Ng6 e7 Qb7 e8B Ne7 e6 Nf3+ Kc5 d4 Bd7 d3 Kc4 Ng1 Kd4 Nc8 Kd5 Bc5 Rf8 d2 g8N Bd4 Nf6 Ne7+ Kd6 d1R Nd5 Rc8 Rg3 Rdd3 Rh3 Rc7 Bc8 Ke4 Bd7 Ng8 e7 Rc8 e8B Ne7 Bg4 Ba7 Qa6 Rc5 Bb5 Qb8+ Kd7 Qe5 Ke8 Rg8 Qc6 Rh8 Qc1 b1Q Qb2 Qd1 Qb1 Qg7 Rg8 Qe5 Kf8 Qe6 Kg7 Qe5+ Qf6 Bb6 Ra8 Rd8 Rb8 Rd7 Rf8 Rd8 Kh8 Ba7 Nc1 Qf3 Ne2 Bb6 Rh4 Nh3 Nh2 Rcc8 Qa2 Bd4 Rh1 Rc5 Bd2 Bc3 Qb1 Ng1 Rh3 Bb4 Nf1 Bc3 Bc1 Bd2 Bb2 Be1 Ba1 Bg3 Bc3 Qh5 Qd6 Bh2 Qc6 Qe5+ Nf6#
2BqkN2/qBQ5/1N1p4/1BNp1QB1/p1rb1r2/RR3R1n/r2P2P1/rb5K b - - 0 1 illegal: No proof kernel
6Br/Q2r1k2/1p4bb/3nppBP/R4Q2/1P1KQN1q/1b1b4/1NRRqR1N b - - 0 1 illegal: No proof kernel
B4BQ1/2Knqp1n/k1pPp2q/4N3/1R4Br/Q1N2P2/rr2B1Q1/2RNb2r b - - 0 1 illegal: No possible last move
1q1N1QNk/pQ1q2B1/b2Q1r2/bnq4R/1q2p1RR/P7/1r1QPp2/N1B4K b - - 1 2 legal: proof: d4 c5 c4 g5 f4 Nc6 fxg5 Qa5+ b4 Qb6 bxc5 Nb8 c6 Qc7 c5 Qd8 c7 Bh6 Ba3 Bg7 Bc1 Bf8 g4 h5 d5 Nc6 dxc6 Rh6 g6 Rh8 g5 Nh6 Bh3 Ng8 Bg4 hxg4 Kf2 b5 Kg2 e5 h4 f5 a3 d5 h5 f4 g7 Kf7 h6 b4 g6+ Kf6 h7 b3 Nd2 e4 Rh4 b2 Kh1 b1Q Ngf3 g3 Ne5 f3 Nb3 d4 Qd2 d3 Nf7 Ne7 g8R Nd5 g7 Ba6 c8Q Nc7 Qb8 Nb5 c7 f2 c6 Bb4 c8Q Ba5 Qbc7 Rb8 Q8b7 Qd4 Nd8 Qb4 Qd7 Qb2 c7 g2+ Kh2 Qc2 c8Q Qcc5 Rb1 Kg6 Na1 Kf6 Re8 Kg6 Re5 Rf8 h8B Rf6 Rg4+ Kh7 Rh5+ Kg8 Qd6 g1Q+ Kh3 Qd1 Kh2 Qdc2 Kh1 Qcb2 Rhh4 Qbe5 Rb3 Qe8 Rc3 Qd7 Rc4 Qe8 Rd4 Qd7 Rd5 Qdc7 Rdh5 Q7b6 Qe1 d2 Qf5 d1Q Qf3 Qdb3 Qed2 Qbc7 Qff4 Qd7 Qf5 Rh6 Qff8+ Kh7 g8N Qg3 Bd4 Qge5 Qc8 Kh8 Be3 Rb6 Qb7 Qg3 Qdc6 Qb8 Qcc7 Rf6 Qcd6 Rh7 Bh6 Rg7 Rg1 Rg3 Rg2 Rb3 Rgg4 Rb2 Bg7#
Kn2Nk2/3B1QNR/pr4Pb/r2N2p1/4r1P1/pr1BbQ2/1B3n1R/3b1R1N b - - 0 1 illegal: No possible last move, all moves rejected
1Nr1bk1B/1pr1RR1B/n1bp2pQ/6b1/nRKQ4/3P2r1/1NPR2rB/6N1 b - - 0 1 illegal: No proof kernel
1bn4Q/NBQN1Pn1/p1RQ2bn/5R2/6RK/PkB1p3/b1pRrnr1/6B1 b - - 0 1 legal: proof: g4 b5 e4 g5 c4 d5 exd5 f5 gxf5 bxc4 h3 g4 h4 Qd6 Be2 Qf6 Bf1 Qg5 hxg5 Be6 Qa4+ Bd7 Qd1 Bc8 d4 Kf7 f4 c5 Kf2 e5 Kg3 h5 b4 e4 g6+ Kf6 d6 a6 b5 c3 g7 c4 d5 c2 b6 e3 d7 c3 d8Q+ Be7 b7 Be6 d6 Nd7 b8B Kf7 f6 Nb6 f5 Nc8 d7 Nh6 g8R Bd6+ Kh4 g3 a3 g2 Bb2 c1N Rh2 Nb3 Rg4 Nd4 Nf3 g1N Bg2 Ba2 Qc7 Nh3 Qh1 Nf2 d8Q+ Be7 Qdd7 Ne6 Qdd6 c2 Nc3 Ng7 Rg1 Ra7 Nb5 Rb7 Na7 Rb5 Kg5 h4 Bc3 h3 Kh4 Rg8 Rb1 Rd5 Rb6 Rd2 Rc6 Re2 Qa1 Rf8 Bh1 Rg8 Rhg2 h2 Ne5+ Ke8 Nd7 Kf7 Rg1 Bd8 Rd1 Be7 Bf3 h1B Rd2 Bd8 Rb6 Be7 Bb7 Be4 Rc6 Bf8 Qe5 Bd6 Qg3 Ke8 f7+ Ke7 f6+ Ke6 f8R Bh7 f7 Bd3 Re8+ Kd5 Re6 Bf4 Rf6 Bd6 Nc5 Bf4 Rf5+ Kc4 Nd7+ Kb3 Qh2 Bd6 Qe5 Ne8 Qh8 Ng7 Qg1 Bh2 Qgg3 Be4 Rfc5 Bg6 Qgd6 Re8 Rf5 Re5 Rf3 Rg5 Rf5 Be5 Rgd4 Rg1 Rg4 Rg2 Qd3 Ne6 Qcd8 Bg7 Bh2 Be5 Bg1 Bb8 Qd6 Ng7 Q8c7
2BN1R2/1r2p3/6bK/Qn1NbB1Q/bRkn1p2/2BnPB2/2Q1P1p1/2rb2N1 b - - 0 1 legal: proof: g4 c5 b4 a5 d4 h5 gxh5 Qb6 dxc5 axb4 Nc3 Qe6 Nb1 Qe3 fxe3 Ra6 Nf3 Ra5 Ng1 Ra8 Kf2 g5 Kg3 b5 Kg4 b3 a4 f6 c4 Kf7 h4 Ke6 h6 d5 Kh5 d4 a5 b4 c6 d3 h7 f5 a6 g4 c5 Kd5 a7 b2 c7 f4 c6 g3 Nc3+ Kc4 Bd2 b1B Qc2 b3 Bg2 b2 Bf3 Bd7 c8B g2 c7 Nc6 Ra4+ Nb4 Rh2 Bc6 Bf5 Rb8 a8Q Nh6 c8B Rb7 Qa5 Bg7 Nd5+ Bc3 Be1 d2 Kg6 d1B h5 Rd8 h8Q Rdd7 Rh3 Rdc7 Rg3 Bb5 Kh7 Rc5 Rg8 Bd7 Rf8 Rcc7 Bg6 Nf5 h6 Nd4 Bf5 Bc6 Kg7 Be8 h7 Rc5 Ra3 Ba4 Kh6 Nd3 Rb3 Rcc7 Qe5 Rc5 h8N Rcc7 Qd2 Bbc2 Nf7 b1N Qc1 Na3 Nd8 Nab5 Rb4+ Kc5 Qb1 Nc1 Bd3 Ne6 Qg5 Be5 Qf5 Nd4 Qh5 Rc6+ Bg6 Rcc7 Be8 Bg6 Bed7 Nd3 Bf5 Kd6 Bh4 Rc1 Be1 Kc5 Qa2 Ra1 Bc3 Rc1 Rb3 Kc4 Qc2 Ne1 Rb1 Nd3 Rb4+
3q1BK1/p2kBRp1/2rp1R2/3QR3/3B1br1/P1q1r2N/Q1nP2Q1/2N1rBr1 b - - 0 1 legal: proof: e4 h5 c4 b5 g4 bxc4 gxh5 Rh7 e5 Rh6 e6 Rh8 f4 d6 Nf3 Bd7 Qa4 Nc6 Ng1 Ne5 Qb3 Qc8 exd7+ Kd8 Qb8 e6 Qb6 Ke7 Qb3 Qd8 Qc2 Nc6 Qd1 e5 Kf2 e4 Ke1 Ne5 fxe5 Qe8 Kf2 Qb8 Ke1 Qd8 Kf2 c5 Kg3 f5 Kf4 c3 Kg5 c4 Kg6 c2 b4 c3 h4 f4 a3 e3 h6 e2 h5 e1R h7 f3 e6 f2 b5 Nh6 b6 Ng4 b7 Nf6 b8B Qa5 d8B+ Ke8 h6 Ng8 e7 Re2 Bbc7 Qb6 Bb2 c1R Qc2 Qb4 Nh3 Kd7 Kf7 Ree1 e8R Re4 Be7 Qb7 Bcd8 Qc8 Qd3 c2 Qd5 Qc7 Bd4 Rc8 Nc3 Rg4 Na2 Re1 Nc1 Nf6 Rh2 Rg8 h8Q Qb6 h7 Rc6 Qa2 Nd5 Rb1 Qc7 Rb7 Nb4 Rg2 Re3 Rg3 Re1 Rf3 Re3 Rf6 Re1 Ba6 f1R Bb5 Rfg1 Bf1 Re3 Ng5 Rh3 Rh6 Rgh4 Bef6 Rc5 Ne2 c1Q Re3 Qb2 Nc1 Be7 Re1 Re8 Qg8 Rf3 h8Q Kc6 Qhh7 Qb6 Qg6 Qc3 Nh3 Nc2 Qg2 Rg4 Re4 Rd3 Bh4 Bg5 Rg6 Re7+ Kf8 Bf4 Qgd5+ Kb5 Kg8 Re6 Rf7 Qba5 Bde7 Qd8+ Bf8 Re5 Qe6 Kc6 Qeb3 Rdg3 Be7 Kd7 Qd5 Rc6 Re3 Re4 Rgf6 Re5 Rf3 Re1 Re3 Rf3 Re4 Rfe3 Re5
B2k1r2/4p1Qq/1Q2P1q1/Rppn2NB/1P4q1/1NR5/QB4n1/r2NBnKn b - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 f5 g4 fxg4 a5 g6 Bg2 Bg7 Bf1 Bh6 h3 g5 Na3 g3 Qc2 g4 Qa4 g2 Qd1 g3 Nb1 Bg4 hxg4 Bf4 Rh6 Be3 Rh1 Bb6 axb6 Qc8 Ra6 Qd7 Ra1 Qd8 f4 c5 d4 h5 b4 a5 e4 h4 f5 a4 f6 h3 e5 a3 f7+ Kd7 f8Q h2 g5 a2 d6 Ra5 d5 Ra8 g6 Ra4 e6+ Kc8 g7 Nd7 b7+ Kb8 Nd2 Rh4 Qc2 Rg4 Nh3 g1Q Nf2 g2 Bb2 Nb6 d7 Kc7 b8B+ Kb7 d6 Rh4 Nb3 Ra7 Nd1 Nf6 g8B Ng4 Qg7 Ne3 Bf7 Rh8 Bh5 Qg8 d8Q Qh7 d7 Nbd5 Bg3 Rf8 Rc1 a1N Qb6+ Ka8 Qb1 Nac2+ Ke2 Ra4 d8N Ne1 Rc3 Ra3 Nf7 Ra1 Qa5+ Kb7 Qba2 Kc8 Qb6 Nd3 Kf3 N3f4 Bd3 Nf1 Be4 Qd4 Ng5 g1Q Be1 Ng2+ Ke2 Qf6 Bef3 Qgd4 Rg1 Qg4 Kf2 Qfg6 Rh1 Nd2 Rf1 h1N+ Kg1 Nde3 Rf2 Ndf1 Ba8 Nd5 Rd2 Nc7 Rd7 Nd5 Rc7+ Kd8 Ra7+ Kc8 Qc6+ Kd8 Ra5 Qhh6 Qa6 Qhh7 Qb6+
6Rn/K7/Qr1r3b/1knBP1pp/3QN1bp/R3NqQ1/R3p1PB/2N2N1b b - - 0 1 illegal: Other
n2QN3/4B2N/1k1K1pR1/2r3BP/p3b1Pr/q2npQ1R/1b1pB3/2Nr1RR1 b - - 0 1 illegal: No proof kernel
QK1N2Nn/1RBbbN2/3p4/QrR1bP2/2p1q1Q1/B1P2N1p/n5Bp/5k1r b - - 0 1 illegal: No possible last move
B3K2b/6b1/1N1p1Q2/N1B1P1N1/n2pN3/p3Pr1p/1RbQ1QB1/1knr1Rq1 b - - 0 1 illegal: No proof kernel
rqb2Qk1/2BnrNN1/1Bp4R/3R4/Q1p1Bp2/n1n1P1RQ/P3p3/5QbK b - - 0 1 illegal: No possible last move, all moves rejected
2B4R/Qb3Q1N/Nrp3k1/3QP3/KpnRpBn1/4P3/1b2rprN/1B4qB b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 b4 g5 hxg5 axb4 cxd5 e4 Kf2 Qf6 Ke1 Qe5 fxe5 Ra7 Rh4 Ra3 Rh1 Ra8 d4 f5 Kd2 Kf7 Kc2 b5 Kb3 h5 g4 h4 a4 f4 a5 h3 d6 f3 a6 c6 g6+ Kg7 a7 h2 d5 f2 g5 Ne7 d7 Rh3+ Nf3 Rh4 d8Q Ng8 d6 Bd7 Qe8 Bg4 d7 Bh3 d8N Bf5 Ra4 Na6 Na3 Be7 Nf7 Nf6 Nc2 Nd7 Bg2 Nab8 Qd5 Rh6 Bf4 Rh3 e3 Nb6 Qed7 Nc4 Qb7 Kg8 g7 Kh7 g8B+ Kg6 Qb6 Rg3 Qc7 Kh5 g6 Bc8 g7 Nd7 N7g5 Kg6 Be6 Bb7 g8B Nf6 Nh7 Ng4 Bc8 Bc5 Qe7 Bd4 Qf8 Rb8 a8Q Bb2 Qa7 Ra8 Ncd4 Rb8 Ne6 Ra8 Nc7 Rb8 Rb1 h1Q Nh2 Qg1 Bh1 Rg2 Rd1 Ra8 Rd4 Rb8 Ra1 Ra8 Qb6 Ra2 Qa7 Bc3 Qe7 Re2 Ra6 Ba1 Rb6 Bb2 Na6 Ba8 Rb8 Bb7 Qg7+ Kh5 Rd3 Nd2+ Kc2 Ba3 Rd4 b3+ Kc3 b2 Qb3 b1R Bce6 Bb2+ Kb4 Ba1 Rf8 Ree1 Bc8 Re2 Bc4 Rb2 Bd3 Rb1 Qc7 Kg6 Rh8 Rb2 Ka3 Rb1 Qd5 Rb3+ Ka2 Bb2 Bb1 Nc4 Qcd7 Rb4 Qe7 Ra4+ Kb3 b4 Nc7 Ra5 Na6 Rb5 Ka4 Rb6 Qef7#
5N2/2R5/Qrp1Q2b/1BPnKQ2/RbpN1NPk/3B3p/1rN4p/B1r1nq2 b - - 0 1 illegal: Other
1Qr1qrQ1/4kRQ1/1p1Nb1KN/5R2/1n1P1R1p/1B1Qpn2/p2P1b2/2N1n1B1 b - - 0 1 illegal: No possible last move, all moves rejected
K2B1nNn/8/1ppRb2p/4BB2/RPk1NN2/Q2Pp1qn/1Q4r1/1Q1Q2br b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Be6 a5 Qc8 a6 Qb7 axb7 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h3 g4 a4 g5 h2 f6 a3 f5 e6 f7 a2 f6 Be7 f8Q Nd7 b8Q Bb7 g6 Ba6 f7 Ngf6 g7 Bc8 g8N Ne4 Bh3 Ng3 Nc3 Nh5 Bf5 Nf4 Nh3 Ng6 Nf4 e5+ Kc4 e4 Kb5 Ke5 Kc6 Kd4 d6 Kc4 b4 e3 Qg7 Ndf8 d7 Bd6 d8B Be6 Kb7 c6 Qa7 h6 Rf1 h1N Ne4 Nf2 Qb2 Nh3 Qaa3 Rh7 Qb1 Rg7 Bb2 Nh8 Be5 Rg2 Qab2 Ra3 Rf3 Rc3 Ka8 Rc1 Rg3 Bc7 Rg6 Bb8 Qa4 Rh1 Qad1 Nd7 f8Q Bc7 Qe7 Nf8 Bg7 Bd6 Qa7 Bb8 Qaa3 Bc7 Nd5 Bh2 Be5 Bg1 Nf4 Bd5 Rd6 Be6 Qb1c2+ Kb5 Rc1 a1Q Qcb1 Qa2 Rc3 Qd5 Rb3 Kc4 Rd3 Qc5 R3d5 Qd4 Ra5 Qd3 Ra4 Qf1 Ra7 Qf3 Ra4 Qg3 d3+
1R4Q1/2r3Np/3pRPpq/Nn1b4/2n5/2B1Q1rr/3R1bPp/BQ1KQkN1 b - - 0 1 illegal: Other
Q7/2b1RbP1/RBp1Q1p1/1b1rr3/qN2p2K/P1n2N1N/1kpnQ2R/3BQ3 b - - 0 1 illegal: No proof kernel
bBB5/1B1b1p2/kn3nr1/2p1N1q1/br1R1P2/R2p1PQN/3pR3/RQ2N2K b - - 0 1 illegal: No possible last move, all moves rejected
1N1B1Qn1/N2R1p1p/KBP2b2/2R1r3/1QBk1rP1/1pR1rb1Q/1p6/2n3qR b - - 0 1 illegal: No proof kernel
1rn5/2B1pN2/BQ2r3/P2KR1Q1/nP4RR/pN1pbp2/kqB4R/N5rb b - - 0 1 illegal: No proof kernel
2b1B3/1rP5/2B4K/2R3r1/1P1p1p1N/N1p1Rbbk/qNRBQ1pB/3nQ2n b - - 0 1 illegal: No proof kernel
3BQN2/Bp2n1rp/3p2bR/3R1N2/4pP2/bnk1KP1b/1R1R3N/1r1q1Q1B b - - 0 1 illegal: No proof kernel
1NR3N1/p2nP1bb/2p3b1/1rN1Q2B/K1P1Bn2/3Q1N1p/1kp1BR2/4rq1Q b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 g5 hxg5 d5 c4 d4 f4 Qd7 fxe5 Ke7 b3 Ke8 Bb2 Qd8 Bc3 dxc3 e4 Ke7 g4 Ke6 d4 h5 g6 f5 g7 f4 d5+ Ke7 b4 c6 e6 Kf6 g5+ Ke5 g6 c2 Kd2 Kd4 d6 h4 e5 f3 e7 f2 e8B Bf5 b6 Nd7 e6 Bh3 b5 Nc5 d7 Qc7 d8Q+ Qd7 b7 Bd6 b8Q Qe7 b6 Qb7 e7 Na4 Be2 f1B Nc3 Nb2 Ne4 Qc8 b7 Bf5 Nc5 Nf6 g8B Nd7 g7 Be5 Bh7 Nd3 g8N Bg7 B8h5 Nf4 B7g6 Bd3 Be4 h3 Rh2 Rh6 Rf2 Re6 Rb1 Qc7 Kc1 Kc3 Nf3 Qd6 Qbc7 Rb8 Rb2 Bg2 Qh1 Qd5 Qe5+ Qd4 Bd5 Bg6 Be4 Bf1 Bd1 Bd3 Be2 Ra8 b8N Bh7 Nba6 Rb8 Rb4 Rb5 Nb8 Ra5 Rb7 Rb5 Rc7 Bg6 Rc8 Bh7 Na4+ Kb3 Kd2 Qa1 Nc5+ Ka2 Ng1 Qb1 Kc3 Qf1 Nf3 Kb1 Bd5 Bdg6 Be4 Ra5 Kb3 Rb5+ Ka4 Ka2 Qd5 Kb2 Qa5 Rd6 Qf5 Rd1 Qd2 Rc1 Qd3 Re1 Qe5+
2N1Q1K1/1Brq4/BN1nQRR1/p3Q1b1/RPpp3p/3bP3/2kr1n1q/B4Q2 b - - 0 1 illegal: No proof kernel
N1BnBN2/2qq4/3PBnpR/4r1kp/pNR4p/K3Q1bP/R5b1/r1Q4R b - - 0 1 illegal: Other
q3N1k1/3Bn3/QP3Q1P/3p1RR1/4pr2/B2pNpnq/2Bb1K1N/Rb1rN3 b - - 0 1 illegal: No proof kernel
Q1Bq1r1n/3N1b1p/4qnR1/R1p2pR1/p2NP3/2kPb3/r1R1Q3/B2BK2N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 Kd6 e4 Ke5 b6 Kd4 d3 a5 d6 f5 b7 c5 g6 f3 g5 Qe7 g7 Qf6 g6 Be6 b5 Bf7 d7 Ne7 g8R Bh6 d8Q+ Nd5 b6 Na6 b8R Bf4 b7 Be6 g7 Bd7 Na3 Nb6 Rh6 Qd6 Qe2 Nd5 Nc2+ Kc3 Nd4 Be6 Rg6 Nac7 Nh3 Ne7 Nf2 Ne8 Nh1 Be3 Qc8 Qd8 Bb2+ Kb4 Ra3 Nf6 Ba1 Bf7 Bh3 Ra7 Bg4 Ra6 Rg5 Ng6 Ra2 Ra7 Ra8 Ra6 Rb2+ Kc3 b8N Ra7 Nd7 Ra6 Re8 Rf8 g8B Nh8 Re6 f2+ Kd1 Ne8 Reg6 Nf6 Bf3 a4 Qb8 Rb6 Ra5 Rb3 Bg4 Ra3 Qa8 Ra2 Bf3 Be8 Bc4 Bf7 Ba6 f1Q+ Qe1+ Bd2 Bc8 Qg2 Qe2 Be3 Ke1 Qg4 Qh2 Qf4 Bd1 Qe5 Qe2 Qe6 Rc2+
RQ1N1Bq1/5np1/4q1pR/kbp1B2Q/n4NP1/K1pNPB1R/1r2r3/3Bb3 b - - 0 1 illegal: Other
Q1q1Br2/RN1kp3/4R3/3K1n1q/2Rp2r1/P2p2bR/2NPp1Qn/bNQ3B1 b - - 0 1 illegal: Other
5b1q/3ppr2/4Rp2/NB2BQqr/1nNP1P2/3BN2n/R1R2p1b/2RQk2K b - - 0 1 illegal: No possible last move, all moves rejected
1bNR3B/1p1r1n2/1k1b1RN1/1N1K3N/PpRnp1r1/pB6/PQ1Qq1Q1/2q5 b - - 0 1 illegal: No proof kernel
R1Q3q1/Pn1NQQ2/1p3K1p/3B2r1/2n1PpR1/R1p1b1B1/brq1k3/BN5Q b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Kf3 c5 Kg4 c4 Kf5 b6 d4 f6 a4 h6 e4 c3 g4 b3 g6 b2 e6+ Kd6 a5 Qc7 g7 Ra6 g5 Qc5 g6 Rh7 Bc4 Nd7 e7 Qb5 e8Q Bb7 Rh4 Ba8 Qf7 Nc5 Ra3 Qa4 Rg4 Qb5 Nf3 Qa4 Ne5 Qb3 Nd7 Nb7 Qh1 Ra7 a6 Ne7+ Kf4 f5 g8Q Qa2 g7 Nc6 Qh8 Nca5 g8R Rg7 Bb3 Kc7 Ke5 f4 d6+ Kc6 d5+ Kb5 Kf6 Rg5 Qhg7 Nc4 Qe7 Nba5 Qgf7 Bc6 Rh8 Nb7 Rg8 Ra8 a7 Rd8 Ne5 Kc5 d7+ Kd4 d6 Bd5 Rh8 Nd2 Bc4 Ke3 Bb3 Be6 Bd5 Ke2 Rg8 Nc4 Rh8 Rc8 d8Q Rc5 d7 Rb5 Qc8 Rb4 d8B Rb3 Qb4 Bc5 Nd7 Be3 Qbe7 Rb5 Nd2 b1Q Bb2 Qg1 Ba1 Qc2 Nb1 Rb2 Bc7 Qf1 Bd6 Qg1 Bc5 Bd2 Bf2 Be3 Be1 Rg8 Qcf8 Qd1 Rg5 Ne5 Bc6 Ba2 Bd5 Nc4 Rg6 Qg4 Bg3 Qa4 Qb8 Qc2 Qc7 Rg7 Ra8 Rg8 Ne5 Qc8 Rg4 Rg5 Nd7 Qg8 Qc8
3nQn2/r1r1NQq1/1R3BPb/3p4/NQ2Bp2/R1pprP2/3R2n1/1NK1Q2k b - - 0 1 legal: proof: d4 e5 h4 exd4 a4 g5 hxg5 b5 axb5 Qf6 Ra2 Qe7 Ra1 Qd8 c4 d6 b4 Be7 c5 Nc6 b6 Nf6 b5 Nb8 c6 Bb7 cxb7 Ng8 Qb3 Bf8 Qc2 Nf6 Qd1 Ng8 Kd2 Kd7 e4 Ke6 g4 Ke5 g6 Kf4 g7 a5 f3 Kg3 e5 c5 g5 h5 e6 f5 e7 d5 e8N f4 g6 c4 Qe2 d3 Qe7 a4 Bb2 h4 Bh3 a3 Nf6 a2 Bf5 Kg2 Be4 h3 Ne2 h2 Nec3 Nd7 b8R Qc7 b7 Rh7 b6 Nh6 g8Q Ra7 Kc1 Nf7 Rd1 h1R Na4 Nd8 Qgf7 Bh6 Ng8 Nf8 Bf6 c3 Qe5 Rh2 Rd2+ Kh1 Ne7 Rg7 Ra8 Re2 b8Q Qd7 b7 Re3 Qc8 Qc7 b8Q Qd7 Qb4 Rh7 Na3 Qc7 Rb1 a1N Rbb2 Nc2 Nb1 Ne1 Qd7 Rg7 Qde8 Ng2 Rb3 Qd7 Ra3 Qb7 Rb8 Qc7 Rb6 Rh7 Qee6 Qe5 Bh4 Qg7 Bf6 Ra8 Qg4 Ne1 Qg8 Ra7 Qg3 Qh8 Nc8 Rhc7 Ne7 Ng2 Qgf7 Qg7 Qe1+
6B1/k2np1P1/p2pP2n/1b1n1rB1/2RNrp2/R2Q4/QqBr2R1/3QBN1K b - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Nh6 h4 Qf4 g6 Nc6 h5 Qc7 g5 Ng8 h6 Bg7 hxg7 Nb8 Bg2 Qb6 Bf1 Qd8 Kf2 f5 Kg2 h5 b4 a6 c4 d3 e4 d2 c5 h4 e5 Qc7 c6 Kd8 b6 Qa7 c7+ Ke8 b5 Nc6 b7 Nb4 b8B Nc2 b6 Nf6 g8B Nb4 g7 Qb7+ Nf3 Nbd5 Rg1 h3+ Kh1 h2 g6 Rh4 Bd3 Re4 Rg2 d6 Ba7 Kd7 Nd4 Qb8 Ra3 Bb7 c8R Bc6 b7 Bb5 Rc4 f4 Bc2 Kd8 Bb2 Nd7 Bc5 Kc7 Bb4+ Kb6 e6 Qc8 b8Q+ Qb7 Qd8+ Ka7 Qa5 Rf8 Qa4 N5b6 Qb3 Rf7 Qa2 Nd5 Nb3 Qb6 Qg4 d1R+ Be1 Rf6 Bh7 Qd8 g8Q Rd2 Qd1 Rde2 N1d2 Qf8 Nf1 Rf7 Bf6 Qg7 Bfh4 Qa1 Nd4 Qb2 Bf6 Rd2 g7 Re3 Qh8 Re4 Bg5 Rf5 Bg8 Nb8 Rf2 Nd7 Kg2 h1N Re2 Nf2 Qh3 Ng4 Kh1 Nh6 Qd3 N7f6 Rh2 Nd7 Rg2
1k3R2/3rQb2/KNBBrQ2/1RNp1p1P/1pRbQ2p/NP3n2/3q3b/2R1r3 b - - 0 1 illegal: No possible last move
QR1n4/2nQ4/5K1p/4r3/B2BP1NP/2NQ2pp/qk2pRnR/1rR1b1rN b - - 0 1 illegal: Other
6rk/b1pqp3/p3Nn2/3N1n1Q/1r1B2N1/P3RpBP/RR3Q1r/1K1Rn2B b - - 0 1 legal: proof: g4 b5 e4 h5 c4 bxc4 f3 d5 exd5 g5 gxh5 g4 Bd3 g3 Bf1 Bg4 fxg4 Rh7 Qe2 Rh6 Qd1 Rh8 b4 f5 d4 Kf7 Kd2 Kg7 Kc2 f4 h3 a6 g5 c3 g6 g2 h6+ Kf6 b5 Qd7 d6 Qg4 g7 Rh7 d7 Qe6 d8Q Rh8 a3 Kf7 d5 Qf6 b6 Qd6 b7 Qc6 d6 Qc5 d7 Kg6 h7 Qd6 Ra2 Qf6 Nf3 g1R Bg2 Nh6 g8R+ Bg7 Qf8 Qc6 d8N Qd7 Ne6 Nf5 Ne5+ Kh6 Be4 Rg2+ Bd2 Rh2 Ng4+ Kg6 Rf1 Ra7 Bh1 Ra8 Kc1 c2 Nc3 Ra7 Kb2 c1N Kb1 Nd3 Nd5 Ne1 Rf3 Ra8 Re3 Ra7 Qe2 f3 Qf2 Ra8 Bc3 Ra7 Bd4 Ra8 Qc8 Kf7 Rd8 Rg8 h8B Be5 Bb6 Bd4 Be5 Kg6 Bf4 Kh7 Bg3 Kh8 Bc5 Nc6 b8R Ne5 Rb7 Rb8 Rbb2 Rb4 Qb7 Kh7 Qb5 Kh8 Bd6 Ba7 Bc5 Qc8 Rd6 Nd7 Bd4+ Nf6 Qe8 Qd7 Qh5+ Nh6 Rc6 Qc8 Rc1 Qd7 Qe5 Nf5 Rd1 Nh6 Qg5 Nf5 Qh5+
k2RR1r1/8/5Kn1/pQ2Nprb/1Rr1BP2/1Np1Bq1p/P1Q1qB2/3Bn2N b - - 0 2 legal: proof: d4 e5 dxe5 b5 c4 bxc4 h4 g5 hxg5 Ba3 Qd6 Bc5 Qd1 Bf8 Kd2 c5 Ke3 h5 Ke4 a5 Kf5 d5+ e6 f6 g4 h4 e4 c3 f4 h3 b4 c4 b5 d4 e5 d3 b6 d2 g6 c2 g7 c3 g5 Rh5 b7 Ke7 Ne2 Rh6 g6 Qd5 Bg2 Kd8 Be4 Kc7 Ng3 Nc6 b8B+ Kb7 Ba7 Rh7 Bf2 Qd3 Rh2 Qd8 Nh1 Qb6 Qe2 d1R Nd2 Rg1 Rb1 Kb8 Rb4 Rg4 Nb3 Be7 Bce3 c1Q Qc2 Bd8 Rg2 Ba6 e7 Qe1 e8R Qe2 e6 Ne5 e7 Nf3 Rg1 Rh8 Rd1 Qb7 Rd5 Ne1 Ke6 f5 Kf7 Nf6 g8N Nh7 g7 Nf8 Nh6 Rg8 Kf6 Rg5 Nf7 Ng6 Ne5 Ra7 Rbb5 Ka8 Rb4 Rh8 g8B Bc4 Be6 Rg8 Bd7 Ra6+ Bc6 Rb6 Bf3 Rb5 Be4 Rc5 Bd7 Bd3 Be6 Rc4 Bf7 Nh8 Bh5 Ng6 Bhf3 Qd2 Bd1 Be2 Rd4 Bg4 Rd5 Qe2 Bd3 Qb5 Rf8 Rc7 Bg1 Bh5 Be4 Rc8 Bgf2 Qbc4 Bd2 Qcd3 Bc1 Bb6 e8Q Qg3 Qb5 Qgf3 Bce3 Bc7 Re8 Bd8+ Kf7 Rc4 Ke6 Ne7 Kf6 Ng6+ Rdxd8#
Bn2R1NN/r7/nbBKQpp1/B2pB2p/3P1PQq/k6r/Q2R2qN/6q1 b - - 1 2 illegal: No proof kernel
1R6/PN1B2pQ/qn2p1R1/2R2k2/3p1n2/2QP1rQb/N1K3pB/bQ1B1bq1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 b5 g4 hxg4 bxa5 b4 Qa4 Ra6 Qb3 Rb6 Qd1 Rb5 cxb5 Ba6 Bc4 Bb7 Bf1 Bc8 f4 Kf7 a4 Kf6 h4 c5 b6 d5 d3 d4 Kd2 g3 h5 e6 h6 c4 b7 g2 a6 c3+ Kc2 Bd6 a7 Qa5 a8B Qb5 h7 Qd7 a5 Bc5 a6 Qe7 a7 Qd8 Be2 Nd7 b8Q Qc7 Bc6 Bf8 Nh3 Be7 Nf2 Nb6 Bd7 Qb7 Ra5 Bd6 Rc5 Ne7 Rh6+ Ng6 Qg1 Re8 h8Q Rf8 Qh7 Qa6 Bd1 Bb7 Be3 Bf3 Ne4+ Kf7 f6 Bg4 f5 Nf4 Qc8 Bh3 Rg6 Be7 Qh2 Bd8 Qg3 b3+ Kc1 c2 Bg1 Bc7 Bh2 b2+ Kd2 Bd8 Nbc3 b1B Na2 Bc7 Kc1 Bd6 Kb2 c1Q+ Kb3 Qe3 Qc6 Qg1 Qb5 Bg4 Qc4 Bh3 Qc3 Bc2+ Kb2 Ba4 Kb1 Bc6 Kc2 Bb7 Qhh4 Be7 Nd6+ Kg8 Qh5 Bf3 Nb7 Be2 Qh6 Bf1 Qhh4 Nh5 f7+ Kh7 f6 Bd6 Qe4 Bf4 Qf5 Bd2 Qe4 Nf4 Qee1 Rc8 f8R Bc1 f7 Bb2 Rg8 Ba1 f8Q Rb8 Qf7 Rf8 Qf5 Qh1 Rg5+ Ng6 Bf3 Qg1 Qb1 Rf6 Be2 Kh6 Qe4 Rf3 Bd1 Nf4 Rb8 Bg4 Rgf5 Kg6 Rg5+ Kf6 Qh7 Bf5 Rc6 Bh3 Rg6+ Kf5 Rc5+
2kn1R2/3p1Rbb/5r2/2NPp3/RB1N1QQ1/2rp1qpQ/2QPBq2/2Kb1B2 b - - 1 2 illegal: No proof kernel
Qr5N/2q2k1B/3Q1B2/1prp1R1q/1PRRn1B1/pNp1K1b1/3Q2P1/1b1qB3 b - - 0 1 illegal: No proof kernel
RN3NQ1/1Nk5/1n1Bn3/Q2Q3p/R1p1BP2/q2pp1qP/5rQ1/1KRqb2b b - - 0 1 illegal: No proof kernel
R4bk1/Qq2N1p1/n1pN4/2R3PR/Bq2BQ2/p2bRpPq/K3n3/1Q2r1B1 b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 f4 exf4 a4 a5 axb5 Ra6 Ra4 Re6 Ra2 Re3 Ra1 Rg3 hxg3 Qd7 Nc3 Qe7 Nb1 Qd8 b4 h5 e4 f5 d4 Kf7 Kd2 f3 Kc3 h4 Kb3 f2 g5 h3 b6 f4 d6 a4+ Ka2 a3 d7 f3 b5 h2 d5 Bd6 b7 Be5 b6 Bf6 d6 Qe8 d8R Nc6 b8Q Rh3 d7 Rh6 b7 Na5 e5 Be7 e6+ Kf8 Nh3 Rh4 Nf4 Bb4 e7+ Kf7 Nc3 Qf8 Bd3 f1Q Qa7 Nh6 b8Q Ba6 e8B+ Kg8 Nb5 Nb3 Nd6 Qh3 Nd5 Nc5 Be4 Bd3 Be3 Na6 Bg1 Nf5 Rc8 Nd4 d8R Ne2 Ba4 c6 Re8 Qd7 Rc1 Qb7 Rc5 Rh6 Qb1 Re6 Nf7 Re7 Qf4 Re6 Ra8 Re5 Re6 Qfb8 Rc3 Bf8 Rc5 Qb4 Nd6 Q8b7 Rh6 Re6 Rh5 Re8 Bf2 Re6 Re1 h1Q Be3 Qh3 Bg1 Nd4 Re3 Ne2 Bb3 Re7 Ba4 Re5 Bf5 Nd4 Re1 Re3 Re2 Qa5 Be4 Qab4 Rg2 Re1 Re2 Rd1 Re3 Ne2 Rc1 Rf1 Rc5 Re1 Ne7+
3q4/BR1P1QKB/QRRpBNp1/2p1r3/1B1N2Q1/2Pk4/qr2np2/1nr1b3 b - - 0 1 illegal: No proof kernel
1Q1NR3/qQ1p2p1/3R1b1B/BBpp2r1/2P1BNP1/kb1K1N2/1r2Rb2/n5q1 b - - 0 2 legal: proof: g4 f5 gxf5 b5 d4 b4 d5 e6 h3 exd5 a3 Nc6 axb4 Ne5 b5 Ng4 hxg4 Qg5 Nf3 Qf6 Ng1 Qd8 Kd2 Ke7 b4 Kd6 e4 h5 f4 c5 e5+ Kc7 e6 Kb6 e7 a5 e8B h4 f6 a4 f7 a3 f5 h3 f6 h2 Nf3 a2 Nc3 Rb8 Kd3 Rh3 Bh6 Ne7 Qb1 Ng6 Ne2 Rh4 Nf4 Bd6 f8R Be7 f7 Bf6 Rg1 h1Q Rg2 Qh2 Re2 Qg1 Rg8 Ne7 f8N Rh5 N8e6 Rf5 Bg6 Ba6 Re8 Qc7 Nd8 Rg5 Be4 Qa7 Qb2 Nf5 Rae1 a1B Re6+ Kc7 Rd6 Nd4 c3 Nb3 Qb1 Bb7 b6+ Kc8 b5 Bc6 b7+ Kc7 Qb2 Kb6 Qb1 Ka5 b6 Ka4 Qb2 Ra8 b8B Bd4 b7 Bf2 Qb1 Ka3 Bc7 Ba4 b8Q Bb2 Ba5 Na1 Qb5 Rb8 Qb7 Bc1 Q1b6 Bb2 Q6c7 Rc8 Qcb8 Bb3 Bh7 Rc6 Re8 Rb6 R1e2 Bc1 Be4 Bce3 Nh4 Bd4 Nf3 Bf6 Kd2 Qh1 Re3 Ba2 Bfd3 Qh2 Re2 Qg1 Ba6 Rb5 c4 Rb2+ Kd3 Bb3 Bb5
1QB5/pBp1q1B1/5pN1/1Q1r3b/1Bnr3Q/NKbpRP1N/5P1R/b1q4k b - - 0 1 illegal: No proof kernel
1Nnq4/qn1pQQ1p/Pq1p1R2/1k2B3/2Q3r1/3PNN1r/1p1K2B1/1bR2NB1 b - - 0 1 illegal: No proof kernel
RrrR2Bb/pQ4r1/pP4Qn/1N4N1/qq2p1kQ/P7/Bn2K1p1/1R2B1R1 b - - 0 1 illegal: No proof kernel
8/2k3pK/B5Rp/2Qb1qq1/n3Br2/1NR2NPB/b2p1Ppb/1Q1nBN1Q b - - 0 1 illegal: No possible last move, all moves rejected
qN6/1Rnp1PNQ/1pbQp1pb/6B1/4B2r/2NR3q/1b1kP1Qr/BK2N3 b - - 0 1 illegal: No possible last move, all moves rejected
2n3Rr/Rp3K1b/p2RB2N/1Qp1p1B1/6q1/1Pb3r1/PqB1B2b/2NNk2Q b - - 1 2 legal: proof: e4 g5 c4 d5 cxd5 f5 f4 fxe4 fxg5 Nd7 g4 Ndf6 h4 Bg7 h5 Bh6 g6 Bf8 h6 Nh5 g5 Ng7 hxg7 Bg4 Rh5 Bd7 Rh1 Bc8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 h5 d6 c5 d5 a6 b3 e3 d7 e2 Ke6 e1B d6 h4 Ne2 h3 Rg1 h2 Kf7 h1Q Nbc3 Qa5 d8R e5 d7 Nf6 g8N Rh5 g7 Rh4 g6 Rh3 Nh6 Qb6 g8B Rg3 g7 Nd5 Bg5 Ne7 Bh7 Qg2 Nc1 Qb2 g8B Qd6 Be2 Qd4 Bhd3 Qg4 Bc2 Bg7 Rf8 Bf6 d8Q Bf5 Rb1 Bh7 Qe8 Nc8 Rg2 Bd2 Qh1 Be7 Nd1 Bc3 Kg7 Bd8 Be6 Ba5 Kf6 Bd4 Kf7 Bg1 Qc6 Bh2 Rd8 Na7 Rd6 Rh8 Rf2 Nc8 Qb5+ Ka3 Rf6 Bc3 Rg6 Ne7 Rg8 Nc8 Qbc6 Kb4 Rf8 Nb6 Ra8 Nc8 Ra7 Bd4 Ne3 Kc3 Qb5 Kd2 Ra1 Bg1 Rb1 Ke1 Nd1 Bc3 Be7 Qa4 Ne3 Rg4 Nd3+ Kd2 Re1 Qb4 Nd1 Bh2 Nc1+ Qd4 Rf1 Rg1 Rf2 Ke1 Rg2 Qe4 Rg8 Qg4 Qhc6 Rg2 Bg5 Rg3 Qh1+
N3Q3/3B1k1N/K1Q2ppb/4RP2/3prNr1/2B1rn1N/1Pb1Rp2/nb2B1R1 b - - 0 1 illegal: No proof kernel
1NKbn3/bn3B2/2n2Rb1/5Np1/BQ5r/PR1QpppN/1B2P3/k1rB1Q2 b - - 0 1 illegal: No possible last move, all moves rejected
6r1/2NQQRpr/B3Q1P1/3Bp3/k1R2pPB/1n1rRb1N/1pr1qn2/1K4B1 b - - 0 1 illegal: No proof kernel
2k3nQ/1n2ppB1/2p2PrR/pnN1b1R1/2N2N1q/2BK1B2/b4P1n/4R1QR b - - 0 1 legal: proof: e4 a5 a4 d5 c4 g5 h4 gxh4 cxd5 b5 axb5 Ra6 Nh3 Rf6 Ng1 Rf5 exf5 Ba6 Rh3 Bb7 Rh1 Bc8 Ke2 Kd7 b4 h5 g4 h3 d4 c6 b6 h2 g5 h4 f6 h3 g6 Rh4 g7 Rh7 d6 Nh6 g8R Qc7 d5 Qb7 b5 Rg7 Nd2 Ng4 Nc4 Na6 Kd3 Qa8 b7 Nh6 b8N+ Kd8 b6 Bd7 b7 Be6 d7 Rg6 Bg2 Nc7 Bf3 Nb5 Na6 Qb8 Qe1 Qg3 Ne2 Qh4 Nc5 Kc7 Rh8 Ng8 d8R Bh6 Qg1 Bf4 Rh6 Be5 Rd6 Kb8 Nf4 Kc7 b8B+ Kc8 Ng2 Bg3 Rd7 Be5 d6 Bd5 Nf4 Be6 Qg2 Bd5 Re1 h1N Qg1 h2 Bb2 Ng3 Bc3 h1N Rb7 Kd8 d7 Nf1 Rad1 Nh2 Ba7 Nd6 Rb5 Ng3 Ra1 Kc7 Rac1 Ngf5 Bb6+ Kb8 d8Q+ Nc8 Qf8 Nd6 Qg7 Na7 Qh8 Nb7 Bc7+ Kc8 Bd6 Bd4 Be5 Ng4 Bd2 Bb2 Bec3 Nh2 Bb4 Rg2 Rg6 Be6 Ne3 Bd4 Nb3 Bg4 Rf1 Qg3 Nh3 Nd6 Rce1 Nc4 Bbc3 Nd6 Qh1 Nb7 Rd5 Rg1 Nc5 Be6 Rf5 Bb3 Nc4 Nd6 Bh6 Nb7 Nf4 Ba2 Bg7 Qh4 Rh6 Rg6 Rg5 Be5 Qg2 Nb5 Rh1 Nd4 Qg3 Nb5 Qg1
5Q2/P1n2N2/1p1rR1pR/1q1rRr2/bB2p2N/1N2P1k1/rn1Q2p1/3QRBK1 b - - 0 1 legal: proof: g4 a5 c4 d5 cxd5 g6 b4 Kd7 bxa5 Bh6 g5 Ke8 h4 Bf8 h5 Bg7 h6 f6 hxg7 fxg5 Rh2 g4 Rh4 Nh6 Rh1 Ng8 a4 Kf7 f4 Kf6 Kf2 Kf5 d4 c5 d6 h5 d7 e5 a6 g3+ Kg2 Kg4 f5 b6 d5 e4 d6 h4 a7 c4 f6 c3 f7 c2 f8Q Qg5 d8Q Nc6 d7 Nb4 a5 Qb5 a6 Ne7 g8R Nd3 Bd2 c1R Bb4 Rc6 Nf3 h3+ Kg1 g2 e3 Nb2 Nh4+ Kg3 Nd2 Rh5 Nb3 Rd6 Ra5 Rhd5 Rh8 Rf5 Rh6 Nd5 Qd2 Nc7 Qd1 Rb8 a8R Bb7 a7 Bc6 Qde8 Rc8 d8N Bd7 Nf7 Rd8 Qd2 Bc6 Qd1 Rdd5 Qee7 R8d6 Re8 Rd3 Be2 Qd5 Qd8 Rf4 Qb1 Rf5 Re6 Ba4 Qf1 Qc6 Rae5 Qb5 Qc1 Rc6 Qd5 Rdc3 Qdd2 R3c5 Bd3 Rd5 Qf1 Kg4 Kh2 Rcd6 Qfc1 Qc4 Rf1 Qb5 Kg1 Kg3 Rf3+ Kg4 Kf2 h2 Bc4 h1R Qcc2 Rb1 Qcd1 Ra1 Kg1 Ra2 Rf1+ Kh3 Re1 Kg3 Bf1
R5r1/kpQ1n3/1qBN3P/3nQ1R1/1pQ3N1/1R1Rp3/KB1BPpnn/b4b2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 gxh5 e4 b4 axb4 Qc2 Ra6 Qb3 Re6 Qd1 Re5 fxe5 Bd7 Nc3 Bh3 Nb1 Bc8 h4 Kd7 d4 c5 Kd2 Kc7 Kc2 Kb6 Kb3 f5 a4 g5 a5+ Ka7 h6 f4 h5 e3 a6 g4 h7 g3 d6 g2 e6 f3 h6 f2 d5 c4+ Ka2 c3 d7 c2 d6 Nc6 e7 Qc7 d8R Nf6 e8Q Qd7 Qd5 Nb8 Rh5 Be7 Qc4 Ne4 Nd2 Nf6 Ne4 Rf8 h8B Qb5 d7 Qc5 Rg5 Qb6 Nf3 g1N Bg2 Nc6 Rb1 Nd5 Bd2 Rg8 Nd6 Bf6 Rb3 Nce7 Ne5 Nf3 Ng4 Ba1 Bb2 Nh2 Be4 Nc6 Qe5 c1N+ Kb1 Nd3 Ka2 Nce7 Bh1 Nc7 Bc6 Ne1 Qcd4 Ncd5 Qc4 Kb8 a7+ Kc7 a8R Ng2 Ra7 Kb8 Ra4 Qa6 Raa3 Ka7 Rf8 Qa5 d8Q Bf5 Qc7 Qa6 Ba4 Qb6 Rd3 Bd7 Rab3 Bf5 Bc6 Be6 Nf6 Bh3 Re8 Ngf4 Rd8 Bf1 Ng4 Ng2 Ra8+
bRN1Q1qQ/pN1rR1B1/1Bkp2KR/3P2bP/pn5b/2N5/Br2pb2/7B b - - 0 1 illegal: No possible last move, all moves rejected
5RNQ/nrNnP1B1/QQ1bNR2/K2p3b/3P2p1/n5N1/k1Bpnp2/1q5B b - - 0 1 illegal: No proof kernel
N1QB2Nr/Q2BpQp1/3r3B/5RP1/2Rnk3/1p1n3P/r1pB4/1R1qr1bK b - - 0 1 illegal: No proof kernel forced: wxDB
5k1R/3Bqn2/3n1ppB/K3BNb1/R4P1p/1b3r1P/2p2bbR/Q2R1NQQ b - - 1 2 illegal: No possible last move
1B1R1Q2/4p1b1/n1K1NP1p/1rN1R3/b2p3q/2NBP1r1/1k3p2/r2BrQBQ b - - 0 1 illegal: No proof kernel
3N1nR1/Qpr5/r3Q3/B3p1BK/kNr2pBB/4r2p/1PnbP1R1/Nr1Q4 b - - 0 1 illegal: No proof kernel
2r1Q3/rn1K4/kN2n2r/pB1p1ppR/2NR1BPB/3R1PRn/1b5Q/2Nr4 b - - 0 1 legal: proof: h4 d5 d4 g5 a4 b5 axb5 c6 h5 Bf5 e4 c5 e5 Qd6 exd6 Bg6 hxg6 cxd4 Kd2 Kd8 Kd3 Kc8 c4 Kb7 b4 a5 g4 f5 g7 h5 f3 e5 c5 h4 c6+ Ka7 d7 h3 d8Q h2 b6+ Ka6 c7 Ra7 c8N Nd7 b5+ Kb7 Ra3 Rh5 Qe2 Bb4 Qe8 Rh7 Bf4 Ne7 g8R Ra6 Rh8 Ra7 Nd2 Rf7 Rh3 Rf8 Nc4 Ng6 Rg3 Bc3 Qd2 Rg8 Ne2 Ndf8 Nc1 Ne6 Qf2 Bb2 Rc3 Kb8 b7 Kc7 b8B+ Kb7 b6 Ka6 b7 e4+ Kc2 d3+ Kb3 d2 Ka4 d1R N8b6 e3 Rd3 e2 Bbc7 e1R b8R Ngf8 Bce5 Re4 Bc3 Rg6 Be1 Nd7 Be2 Rh6 Rc8 Kb7 Kb5 Ndc5 Rc6 Re3 Rd4 Rc3 Rc8 Ra8 Rb8+ Ka7 Kc6 Nb7 Kd7 Ka6 Rc8 Rc2 Rc5 Rc8 Rb5 Ra8 Rb3 Ra7 Rbd3 Rc3 Rf1 h1N Qh2 Nf2 Rfg1 Rh4 Rh3 Rc2 Rgg3 Rh6 Rh5 Rc3 Rg1 Nh3 Bh4 Rc2 Rg3 Rc3 Nd6 Rc8 Ndc4 Rg1 Bd1 Rh1 Ba4 Rd1 Bb5+
3n1rb1/1Np2bB1/QRr1r1N1/2QN1B2/3KR1p1/p1P3p1/PQN1kB2/b5b1 b - - 0 1 illegal: No possible last move
n2bNR1B/5k1r/2K5/5n2/Pp2R1N1/p2Pp3/RpbQpqBQ/1Q2R1Br b - - 0 1 illegal: Other
bK1N1Br1/1QR5/2pp1kP1/4pQnQ/1rq1nRP1/1p1NB2B/2p3RB/6b1 b - - 0 1 illegal: Other
bKQ4r/6p1/Bp1nRkN1/1P2qn2/P2B1p1N/3bp1Qp/B2Rr1N1/3N3Q b - - 0 1 illegal: No proof kernel
1r1RR1N1/2b1pN1K/2b1p3/rB2Qn1Q/1k1q2p1/pn1P2Pp/B2N3N/2B4R b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 b4 e5 b3 axb3 Qd6 b4 Qd7 b5 Qd8 h4 g5 e6 fxe6 Qa4 g4 Qd1 Qd6 Nc3 Qf4 Nb1 Qg5 hxg5 Ba6 Rh6 Bb7 Rh1 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 b4+ Kd6 g3 h5 g6 a5 Kg5 c5 f4 c4 f5 c3 f6 h4 f7 h3 g7 c2 Kg6 a4 b6 a3 b5 Kc5 b7 Ra6 b6 Rh4 d6 Rh8 d7 Nf6 g8B Rh7 d8N Ne4 Bb5 Bd7 Nf3 Ra4 Nh2 Na6 b8Q Ng5 b7 Rc4 Qe5+ Kb4 b8N Bg7 f8R Nf7 Re8 Nh6 Nf7 Rh8 Bh7 Bc6 Nd7 Rc5 Nf6 Nf5 Ng8 Rd5 Qde1 Nc5 Q1e3 Bh6 Qg5 Nb3 Qh5 Be3 Ra2 Bb6 Rb2 Bd8 d3 Bc7 Nd2 Nd6 Kg7 Rc5 Be4 Nf5+ Kg6 Rd5 Bc4 Ra5 Bed5 Bb7 Bb5 Bc6 Ngh6 Rf8 Kh7 Rg8 Rd8 Rf8 Rb1 Re8 Ng8 Rf8 Bb2 c1Q Bdc4 Qe1 Bc1 Qe3 Rb2 Qd4 Rc2 Na1 Ba2 Nb3 Rc5 Re8 Rcd5 Rf8 Ra8 Rc8 Rd8 Rb8 Re8 Rb7 Rac8 Rb8 Rcd8
q2Q1Q1n/kBrp4/2p1PK1Q/2BR1B2/2N2BN1/7p/Pr1pnp2/bbR1R3 b - - 0 1 illegal: No proof kernel
1r1N4/1p3Qp1/n2r3P/Bqp4r/Rp2B1PN/nQpRR1B1/3N4/K1k1b2B b - - 0 1 illegal: Other
3r4/Q2p1B2/2pQ1Brn/N1p2p1Q/nB4N1/b1PP4/p3RR1R/K1k1qnQ1 b - - 0 2 legal: proof: f4 e5 fxe5 h5 a4 h4 b4 h3 b5 Rh4 gxh3 Rh5 h4 Rh6 h5 Rh8 c3 Qg5 b6 Qd8 Qc2 Qf6 Qg6 Qd8 Qc6 bxc6 Ra2 Ba6 Ra1 Bb5 axb5 Rh7 Ba3 Rh6 Bc1 Rh8 Kd1 Ke7 Kc2 Ke6 Kb2 Kf5 h4 Ke4 e6 f5 h6 a5 h5 g5 b7 g4 b6 g3 e7 c5 e8R+ Ne7 h7 c6 h6 g2 Na3 a4 Nc4 Ra6 Nh3 g1N Na5 Bg7 Ra2 a3+ Ka1 Qc7 Nf2+ Kf4 e4 Ng8 e5 Ra7 e6 Bd4 e7 Ra8 Bc4 Ne2 d3+ Be3 Bf7 Na6 b8Q Qe5 b7 Nc7 Ng4 Ng3 Rhh2 Nf1 Qa7 Nd5 b8Q Nb6 Qd6 Na4 Rae2 a2 Ba3 Rd8 Bb4 Bc1 Rc2 Nf6 Rce2 Rg8 h8Q Rg5 h7 Ba3 Qg7 Ng8 h8B Nh6 Rg8 Kf3 e8Q Qe6 Qgd4 Rg6 Qg1 Qe3 Bf6 Qd2 Ne5+ Kf4 Ref2+ Ke3 Rh8 Qe2 Ng4+ Kd2 Rhg2 Kc1 Rh7 Ng8 Rhh2 Qe1 Re2 Nh6 Rgf2 Kd1 Qh8 Kc1 Qh7 Ng8 Qh3 Nh6 Qh5
2B1k1NR/p5p1/8/1nKBQ1Q1/R1bP1p2/P1bNR1b1/pB3pq1/1n2rR1N b - - 0 1 illegal: Other
6r1/p1Q3pK/3BR1P1/R1pN1p2/brB1pq2/2R1PkB1/1Q2q3/N1bN1nB1 b - - 0 2 legal: proof: f4 d5 a4 h5 c4 b5 cxd5 Na6 g4 Nc5 axb5 hxg4 Ra6 Ne4 Ra1 Ng5 fxg5 Rh6 Qb3 Rh7 Qd1 Rh8 Kf2 Kd7 Ke3 Kd6 Ke4 c5 d4 e5 b4 f6 h4 g3 h5 g2 b6 Ne7 h6 Ng6 b5 Bd7 b7 Bh3 b8B+ Qc7 b6 Bc8 h7 Nh4 b7 Nf3 Na3 Be7 Nh3 g1Q Nc2 Ne1 Be3 Nf3 Qc1 Rf8 h8N Nh4 Ng6 Be6 Nf2 Ng2 Nd1 Rh8 Nf4 Rh4 Ra5 Qh2 Qb2 Rg4 Bg1 Qh5 e3 Qh8 Na1 Qh2 Bc4 Qh8 Rh6 Ne1 Rg6 Bf7 Kf5 Be8 Rh6 Ba4 Kg6 Qc8 Kh7 Nf3 Rg6 Nd2 Rh6 Kd7 d6 Kc6 d7 Nf1 d8Q Bd6 Nd5 f5 Qe7 Qe8 Re6 Qh5+ Kg8 Qh2 g6 Qe2 Kh7 Qc8 Bc7 Qb8 Bd8 Qc7 b8R Re4 Rb3 Qb8 Bb6 Qc7 Rc3 Rg8 Qf7 Qb8 Bc7 Rf4 Re8 Be7 Bd6 Bf6 Re7 Bh4 Nb6 Qe8 Ba2 Bf2 Bb8 Qd8 Re6+ Qd6 Bc7 Be1 d5+ Kb7 Qe7 Rb4 Bc4 Bd2 Bb8+ Qc7 d6 Bc1 d7 Qd6 Qd8 Qd4 Bd6 Kc6 Qb8 Qdg4 d8B Qf4 Bb3 Re4 Bh4 Rb4 Nc4 Kd5 Nb6+ Ke4 Qc7 Kf3 Nd5 e4 Bg3 Qc2 Ba2 Qe2 Bc4
3NNQq1/2pk2qN/1nP5/p4r1p/p1rp1RN1/B3BKb1/2B1Q1QP/2R3b1 b - - 1 2 legal: proof: d4 f5 a4 e5 dxe5 b5 g4 bxa4 e4 Bb7 e6 Nc6 f3 Nd4 e5 Be4 fxe4 f4 Nd2 Nh6 Nb1 Ndf5 gxf5 Ng8 Ke2 g5 c4 d5 b4 a5 f6 h5 b5 d4 b6 g4 e7 g3 b7 g2 b8N Ra7 Nc3 Ra6 Kf3 Rh7 Nd5 Qd6 Bd3 Qd8 Nh3 g1B Ng5 Bh6 Ne3 Rb6 Qc2 Rb7 Nc6 Ra7 f7+ Kd7 f8B Qa8 e8N Re7 e6+ Kc8 e5 Rd7 e7 Rd8 e6 Ra6 Ng4 Rd5 Be3 Nf6 Qg2 Rf5 Rc1 Nd7 Bc2 Nb6 Nh7 Bg5 Rf1 Bh4 Rf2 Bg3 Rf1 Nd5 Nd8 Rc6 Rc1 B1f2 Rhf1 Bg1 Nef6 Nb6 e8Q Qb8 Ba3 Rcc5 e7 Rc6 Ke4 f3 Qf8 f2 e8Q Rcc5 Qb5 Rc6 Ne8 Kd7 Qb3 Qc8 Qd3 Qa8 Qe2 Qb8 Rfe1 f1Q Red1 Qf2 Rf1 Qe1 Rf3 Qb4 Rf4 Qe7+ Kf3 Qg7 Qd3 Qa8 Qe4 Rcc5 Qe2 Qd5 Qg2 Qdg8 Qe2 Rb5 c5 Rb4 Qg2 Rc4 Qd3 Q8h8 Qde2 Qhg8 c6+
1NQ1nK1R/p2q1nBP/6k1/1BpQ2Q1/3prqBp/1p1Q1R2/6bP/1R1N3r b - - 0 1 illegal: No proof kernel
1N1K2B1/3nRB2/rk1n1QRB/qp1N1Q2/1N6/p4rBp/1P1pP1p1/1b2Rq2 b - - 0 1 illegal: No proof kernel
2kRQ3/B2rpppn/K4Pb1/Rp1R1Q2/4R1N1/B1qbP3/qpNQ4/1B4b1 b - - 0 1 illegal: No possible last move, all moves rejected
b2N1R1K/2pkpBp1/np1B4/1P1qQ3/1n3n2/1pP1R2N/1R2Bb1N/Q3nB2 b - - 0 1 illegal: No proof kernel forced: wxDB
1B3nQ1/pRNR4/1b1n2Q1/3pKNk1/nn1Pb2p/P3p2r/3N1QpR/6NB b - - 0 1 illegal: No possible last move, all moves rejected
rq6/1pRN1p1p/2P4P/BBQ1np2/1bR3Nk/3RQ1Q1/1n1pKp2/1Rr4B b - - 0 1 illegal: Other
2b4R/pR3p1p/N1kQP3/1R1p1K2/p3Qb1R/3P2rQ/Br3p1B/1NnN2q1 b - - 0 1 illegal: Other
r2Rq2b/kBN3n1/1q1p2b1/Q4bQ1/3Pnr2/q1R1p1N1/nB2P2B/1QRK1Q2 b - - 0 1 illegal: No proof kernel
Q2B1rN1/1r2N2r/q1q2Q1p/1kBR3B/q1p1nK1Q/2P1nbB1/3N2RP/2b3n1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 a5 Ke3 c5 f4 g5 b4 d5 b6 Kd7 f5 Kc6 f6 g3 b5+ Kb7 f7 c4 c3 h6 e6 g2 e7 a4 e8Q a3 Qe4 a2 Nd2 g4 Nh3 g1Q+ Kf4 Qd4 Rg1 g3 Rg2 Ba3 f8B Nc6 Bc5 Qe8 e3 Ra7 Qf3 Bg4 Be2 Nce7 Ng5 Qd7 Nh7 Qc6 Nf6 Rh7 Rb1 a1R Rb2 Kb8 b7 Kc7 b8N Nf5 b6+ Kb7 Qf2 Bf3 Rb5 Rb1 Ra5 Ra8 Bd1 Qd3 Qe5 d4 e4 Ne3 Qe7+ Qd7 e5 Qg6 e6 d3 Nc6 Rf8 Rb5 Ka6 b7 Rb3 b8B Qc7+ Qd6 Qb7 Ne7+ Qc6 Bc7 Rb2 Bd8 Rb4 Nf1 d2 Be2 d1Q Nd2 Qa4 Bd1 Bd5 Bh5 Bf3 Qe5 Rb2 Qg5 Rb1 Qh4 Rb2 Bd6 Rb3 Rd5 Rb7 Bc5 Bb2 Nc8 Kb5 e7 Ba3 e8Q Bb2 Qe4 Qca6 Ne7 Qe8 Nf1 Qec6 Bd2 Ba3 Be1 Bc1 Nd2 Qa1 Qf1 Q1a4 Re2 g2 Bg3 g1N Rg2 Qa8 Qe6 Q8a7 Qc8 Q7a6 Qa8 Re8 Nd7 Nf6 Qf2 Ne4 Nf6 Rg8 Qf1 Re8 Nfg8 Rf8+ Ke5 Be2 Qff6 Bf3 Kf4
8/1Rn1BB1r/r1Q4p/q3p1QB/1b4nK/rN1qRQ1P/kN1QP1Nq/5bb1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 Kf2 Kd7 g4 Kd6 b4 e5 d4 a5 b6 f5 b7 c5 b5 h6 g5 c4 h3 f3 Kg3 f2 g6 a4 b6 a3 g7 a2 Bg5 c3 Nf3 c2 Nbd2 c1R Nh4 Be6 Qc2 Qc8 Nb3 Ra5 Ng2 f4+ Kh4 Nf6 g8B f3 Bf7 Na6 b8Q+ Nc7 b7 Qd7 Qa8 Ra6 b8N Ng4 Nc6 Rh7 Nb4 Qb5 Qf5 Rc3 Nd3 Qa5 Nb2 Bd7 Rg1 Bc6 Rb1 a1B Qb7 Rc4 Bh5 Ra4 Qf4 Ra3 Be7+ Kd7 d6 Ke6 d7 Kd5 Bf6 Bb4 d8Q+ Bd6 Qf8 Bb4 Qb6 Bb7 Qg5 Bc6 Be7 Bb7 Nd1 Kc4 d5 Bd4 d6 Be3 d7 Bec5 Ne1 Bd4 Bg2 f1Q d8Q f2 Bf3 Qg2 Nb2+ Kc3 Qe6 f1Q Bf7 Qh2 Rg3 Bg1 Ng2 Qd1 Qdd6 Qd3 Qec8 Ne3 B3h5 Ng4 Re3 Ba8 Qb7 Kc2 Qf3 Bb7 Qe8 Bc6 Rf1 Be4 Rf2 Kb1 Qec6 Ka2 Rf1 Bd5 Rb1 Qg6 Na1 Na8 Qe4 Nc7 Ne1 Bd2 Na4 Nf2 Rb7 Ng4 Nb3 Bb4 Nb2 Qf5 Qef4 Bg2 Qd2 Qd3 Qff3 Bf1 Ng2
k1r1Brr1/5b2/2n2bpN/1B6/1Rqp1n2/b1R3bQ/Q1nPN1PQ/2BBN2K b - - 0 1 illegal: No proof kernel
r3k1n1/1Qp4N/q3QBKp/4q2P/1qq3Nb/2PQN2n/q2B4/1rBBRR1b b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 a5 Ke3 d5 Kf4 a4 h4 d4 b4 g3 e4 g6 b6 d3 e6 g5+ Kf5 h6 f4 a3 e5 g2 c3 a2 b5 g4 b7 g3 h5 d2 b6 Qh4 Na3 Na6 b8Q Qh2 b7 Qh4 Nc4 Qh2 Nh3 g1Q Be2 g2 Kg6 Qe3 f5 g1Q+ Ng5 Rh7 e7 Qb6+ f6 Qf4 Ne3 Qg2 Re1 Qbb4 f7+ Kd7 e8N Be7 f8B Rh8 Rf1 Qfc4 Bg7 Nc5 Bf6 Ne4 e6+ Kd8 Qc2 Nf2 Bd1 Nh3 Qd3+ Qgd5 Rb1 a1Q Nh7 Qaa6 Qa7 Qaa2 b8B Bb7 Re1 Bc6 Qb7 Qdd4 Ra1 Bh1 Ba7 Qdd5 Bad4 Qe5 Bg5 Qca6 Nef6 Q2c4 Nfg4 Ke8 Bf4 Bh4 Bg5 Qaa2 e7 Rb8 Bc2 d1Q Bf4 Qea5 Bf6 Qe2 Bd1 Qe5 Rf1 Qaa6 Nd5 Qbb5 Qa7 Kd7 e8Q+ Kd6 Bce3 Qea2 Bf3 Rb6 Rae1 Ne7+ Kg7 Qbc5 Bc1 Rb1 Bfd2 Q5b4 Bd1 Rf8 Qf7 Kd7 Qb7 Ra8 Qe6+ Kd8 Nde3+ Ke8 Qef5 Ng8 Kg6 Qh2 Qfd5 Qe5 Qe6+
3Rn1k1/1p3B1p/2rRNQ1P/1K2br2/1P4Q1/N1NNBBrq/2b3bn/2q2rQ1 b - - 0 1 illegal: No proof kernel
1Q6/KRnBq2n/2N1pr1p/1r1Qq2P/1Rrn4/1B1bbRN1/4P3/kr3RBN b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 Kf2 Kd7 b4 Kd6 h4 Ke5 g4 Kd4 d6 a5 d7 c5 b6 f5 g5 h6 b7 a4 g6 c4 h5 f3 b5 c3 g7 f4 b6 c2 Bh3 a3 Nc3 a2 Rb1 a1R Ne4 R8a7 Ng3 Na6 b8R Rc7 b7 Nf6 g8B Rc4 Rb4 Nc7 d3 Kc3 d4 Ra5 d5 Nh7 d6 Rb5 Be3 c1N Qd5 Nb3 Bg4 Kb2 Nh3 Bg7 Rf1 Bd4 Bf7 Qe8 d8R Bf5 d7 Bd3 Bg8 Qf7 Rf8 Qf6 d8N Qe5 Bd7 e6 Nc6 Ba7 Bf7 Rg8 Bfe8 Rg6 Bb6 Rf6 Bg6 Bb1 Bc2 Ka1 Bc5 Nd4 Bb3 Kb2 Rf7 Bd3 Rbf8 Bb6 b8Q Ba7 Nh1 Bb6 Ng5 Ba7 Ne4 Bb6 Ke1 Ka1 Neg3 f2+ Kd1 f3 Kd2+ Rc1 Rg7 Rb1 Kc3 Rf4 Re1 f1Q Rgf7 Qg1 Rf1 f2 Re7 Rg4 Rf3 Qh2 Rg7 Qh4 Rgf7 Be4 Kc4 Qe7 Rc1 f1R Rd1 Nf5 Bg1 Be3 Re1 Rf2 Rf1 Nd4 R7f4 Ra5 Rb7 Rc5+ Kb4 Bd3 Re4 Rc4+ Ka5 Rc5+ Kb6 Rb5+ Ka7 Rf4 Rc1 Rf6 Ref4 Rf1 Rc4 Rfc1 Rb4 Rc3 Rf1 Rc4 R4f3
R6B/bQr4p/r2B1N2/1n3pqb/1bN3BP/1r1N1Rq1/4KPr1/Nk1Qn2R b - - 0 1 illegal: No proof kernel
BBbn2Q1/bp2bRK1/5r2/b4RpN/B1q1R2n/r2QrQq1/1P1N2P1/k6B b - - 0 1 illegal: Other
kN1nnr2/p1p2bq1/b2n3Q/RR2B1Nn/r2B4/P1PqQ3/1BQ3NK/2bB4 b - - 0 1 illegal: No proof kernel
b1n1QK1B/2r2Npk/2RpBqP1/3Q3B/1bnP1r1b/3NRp2/1Q4R1/rRn5 b - - 0 1 illegal: No possible last move, all moves rejected
2N3Q1/k2Nn1b1/pr1R2B1/q3Q1QK/b1Rp1p2/2QPnP1B/r1r5/qbB3N1 b - - 0 1 illegal: No possible last move, all moves rejected
2qnB1Kb/kNRpB2r/q2Q4/3P1Q1b/1Rr2Bnp/N4bp1/3QRrP1/6Q1 b - - 0 1 illegal: No proof kernel
2Q4K/NBp2R2/BpPr1nq1/1rbrpbqN/1B4k1/4P2Q/2n4Q/1R3qRQ b - - 0 1 illegal: No possible last move
4n3/1p1R1N2/1P1qQNpR/Q1rRp1Br/b2n2P1/3K3b/1BBb1kq1/1BN3r1 b - - 0 1 illegal: No proof kernel
kr2BBN1/p3Qp2/2q1RPN1/P3Q1N1/8/1QR1KbR1/1np2n1N/2n1brqb b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g4 h5 gxh5 Bd6 Nd2 Ba3 Nb1 Bf8 Kd2 c5 b4 d5 h4 Kd7 a4 Kc7 f4 Kb7 e4 g5 b5 d4 a5 d3 h6 g4 e6 g3 h7 g2 b6 c3+ Ke3 c4 e7 c2 e8R c3 f5 d2 e5 Qc7 f6 Nh6 e6 Qc4 h5 Nd7 e7 Qd5 Rh3 Qf5 Bb5 Bg7 Ba3 c1Q Qb3 d1B+ Nd2 c2 Rg3 Be2 Nh3 g1N Ng5 Ne5 Ba4 Qcf1 Ndf3 Bf8 Nh2 Bf3 Bb4 Qb1 Ra3 Qe6 Bd6 Rg8 h8N Rb8 Ng6 Ne2 Bb4 Nc1 Bc5 Ka6 b7 Qc6 Bd6 Ned3 Bc5 Ra8 b8Q Nb2 Qe5 Rb8 Bb4 Kb7 Bb5 Rg7 Bd6 Ng8 h6 Ka8 h7 Nh6 h8N Bh1 Nf4 Be6 Nhg6 Bg4 Nd5 Rh7 Qa4 Be2 Rc3 Bef3 Qb3 Ng4+ Kd4 Qd7 Rc7 Ncd3 Nf1 Ngf2 Ke3 Bhg2 Bc5 Rh1 Nh2 Qd1 Rc6 Qd6 Rec8 Qd7 e8Q Nc1 Re6 Qb7 Ba3 Bb4 Nde7 Qf1 Rc7 Be1 Ng8 Rg1 Bc6 Bh1 Bf8 Qg2 Bd7 Rf1 Rc3 Qc6 Qe7 Qg1 Be8
4r3/p2prq1B/k2PnQ1Q/PN3b1N/n2qB3/K1NRbpB1/2R4n/2R2B1q b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 h5 gxh5 c5 bxc5 Qf6 Bb2 Qb6 Bc1 Qd8 h4 b5 c4 g5 d4 f5 Kd2 f3 Kc2 f2 Kb2 f4 e4 f3 a4 b4 e5 b3 c6 g4 c7 g3 e6 g2 a5 Be7 h6 Bb4 c5 Nc6 d5 Qe7 h5 Qg7+ Qd4 Nf6 h7 Nb8 c6 Qg5 h6 Be7 d6 Ng4 Bf4 Qf5 Na3 Qf6 Rc1 Bb7 c8B Kd8 Bg3 Na6 Nb5 Re8 h8N Nh2 h7 Qf7 Ng6 Bg5 h8Q Nc5 Ka3 b2 Qh6 Be3 Qf6+ Re7 Ne2 g1Q Ngf4 Rb8 Nec3 b1N+ Kb4 Ba6 Bb7 Ra8 Nh5 Rb8 Nd5 Nc3 Ka3 N3a4 Ndc3 Rc8 Rd1 Rb8 Ba8 Kc8 c7 Bb7 Rd2 Be4 Rd3 Bf5 Be4 Ra8 Rd5 Kb7 c8R Ka6 Rd3 Re8 e7 Ne6 Nb1 Rb8 Rc2 Rbc8 N1c3 Rb8 Bh3 f1Q Bg2 Qff2 Bh3 Qb1 Rhc1 Qg1 Bg2 Qh1 Bf1 Qb4+ Ka2 Qd4 Ka3 Rg8 e8B Rg7 Bd5 Qg8 Bf7 Re8 Bg6 Rge7 Be4 Qf7 Bh7
1b5q/1Q4nQ/1NnBnp1N/k6q/1R1q4/ppBb1P2/P2Q1R2/KBr1Q1rN b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 Kd2 b5 Kc3 a5 Kb2 d5 h4 Kd7 e4 Kc7 c4 g5 e6 d4 f3 d3 e5 a4 c6 Kb6 c5+ Ka6 c7 d2 e7 g3 e8N g2 e6 g4 c6 g3 h5 Qd6 e7 Qg6 h6 Qd3 h7 b4 Na3 b3 Nf6 Bf5 e8Q Qb5 c8Q+ Ka5 c7 Bd6 Ng4 Nc6 Qcd7 Nf6 c8Q Rg8 h8B Bb8 Qee1 Bd3 Nh3 g1Q Nh6 g2 Qcb7 Ne8 Nf2 Ng7 Rh4 Qh2 Rb4 g1N Nh1 Ne2 Rb1 Qh4 Ka1 Ned4 Rb2 Nde6 Bh3 Qbh5 Bf5 Qh3 Qde2 d1Q Q2d2 Qc2 Qe7 Qc5 Rc2 Ra6 Bb2 Rb6 Be5 Qd4+ Rb2 Rc8 Bd6 Rb5 Bh7 Rg5 Be4 Rg1 Bf5 Bf1 Bb1 Bd3 Q7h4 Rc7 Qhe4 Q3h4 Qh7 Qh2 Nb5 a3 Nc3 Na7 Na4 Rc1 Nb6 Nc6 Qed1 Nf5 Bhe5 f6 Qf1 Nfg7 Qfe1 Qc5 Bc3 Qd4 Bc5 Qe8 Bd6 Qhh5 Qf4 Qg8 Rf2 Qh8 Qfd2
Q2knRBK/2NN1p1N/3QQ1R1/1bq2Q1p/3rbP2/4q2P/1Bq2np1/B1b2r2 b - - 0 1 illegal: No proof kernel
4kBr1/2n2n2/N1KB2p1/RQ3b1N/pp3QBn/b4NP1/1P3BQr/n1Rqn3 b - - 0 1 illegal: No proof kernel
8/rb2rnQK/nb1RNk1N/1B3N2/R1b1pBB1/2b1Pp1Q/p2n1P1q/2R2B2 b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 g4 hxg4 axb5 Rh7 Be3 Rh6 Bc1 Rh8 Kd2 e5 Ke3 Ke7 Ke4 g5 Kf5 a5 b4 f6 Kg6 d5 c4 a4 h4 d4 c6 a3 b6 e4 b5 d3 b7 d2 b6 f5 h5 f4 c7 f3 c5 g3 h6 g2 c6 g4 h7 g3 Nc3 Bg4 c8B Ra4 c7 Nh6 Bd7 Na6 b8Q Bg7 c8B Qc7 b7 Nf7 Nb5 Re8 h8N Bc3 Kh7 Kf6 Nd6 Re7 Nh3 g1N Bb5 g2 Nf5 Qh2 Qc7 a2 b8R Ra5 Ra8 Ra3 Qa4 d1B Bf4 Bb3 e3 Ne2 Rd1 g1B Rd6+ Be6 Qb3 Nc1 Qb2 Ra5 Qd7 Nb3 Qa1 Nd2 Qb2 Nh6+ Nf7 Ra4 Ng5 Bh3 Rd4 Bc4 Ne6 Ra3 Bd3 Bf1 Rd6 Be2 Qa1 Bd5 Qf1 Bb7 Qh3 Ra4 Bb1 Bc4 Bd3 Qg2 Ra7 Bh2 Rc1 Bg3 Ra8 Qh2 Bf1 Bh4 Qc7 Bg5 Bg3 Bf4 Bcd7 Bfe5 Bf4 Bed4 Bc8 Bb6 Ra7 Ng4 Ra8 Ne5 Bcd7 Re8 N7h6 Nf7 Ra7 Re7 Ra8 Ra3 Ra7 Nb8 Ra4 Na6 Nf8+ Re6 Ra5 Ne5 Be8 Nc5 Bh5 Ra4 Bg4 Ra3 Kh8 Ra4 Qh7 Ra3 Qg8 Nf7+ Kh7 Ra4 Rd4 Re7 Ne6 Rb4 Ra3 Ra4 Rd6 Ra7 Ra4 Na6 Qg7#
1K2Q3/B1rppbQp/2Br2R1/1NnP2rP/1b1q2NR/1r1n2B1/1N2b1k1/N2R4 b - - 0 1 illegal: No proof kernel
1R2N2k/1Bnp1qr1/p2P1B1Q/n2n4/r3b1pn/PB1r1Q1N/1b3QQ1/1N2K1R1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 b4 c5 bxc5 Rh3 Qf3 Rh7 Qd1 Rh8 Ke2 Kf7 Nc3 b5 h4 e5 d4 g5 f4 Kg7 f6+ Kh7 d5 a6 h5 e4 a3 e3 h6 g3 f7 g4 c6 b4 c7 b3 f5 b2 f6 b1N Bb2 g2 Qd2 Bc5 f8Q Bd6 f7 Bb7 c8N Bc7 Nd6 Nf6 Rh4 Rg8 Nh3 g1R Kd1 Nc6 Qg2 Ne8 Ke2 Kg6 h7 Na5 h8Q Rb8 Qd4 Qg5 Rh8 Qh5 Qde4+ Kf6 Qh6+ Rg6 Rf8 Ba8 Qd3 Rb4 Rg8 Ra4 f8Q+ Ke5 Qff2 Rh1 Nf4 Kf6 Nh3+ Qf5 Rh8 Bb6 Qde4 Bd4 Qef3 Bb7 Na2 Bc6 c4 Be5 c5 Nc7 Nc3 Qf4 Qhh4+ Kg7 Rb8 Qf7 Ne8+ Kg8 d6 Be4 Qh5 Rg7 Qg5 Kh8 c6 Nb5 c7 Rg1 c8B Nc7 Bb7 Bd4 Qff6 Rh1 Ng1 Rh3 Qgg6 Rg3 Nh3 Be5 Kd1 Bd4 Bc4 e2+ Kc1 e1N Kd1 Be5 Bb3 Nf3 Qgg5 Nh4 Qgh6+ Bh7 Ke2 Rd3 Q6f3 Bf6 Bc1 Bd4 Bg5 Be5 Bf6 Bd4 Ne4 Bb2 Nd2 Nc3+ Kf1 N3d5 Re1 Nf5 Nb1 Nh4 Ke2 Ne6 Rg1 Nec7 Qhf4 Bg6 Ke1 Be4 Qh6+
r3r3/1N2Rpp1/krR1N3/1Bb1K3/p1Q1bPR1/Pb2n3/R1N1n2q/BQr2B2 b - - 0 1 illegal: No possible last move
1n2r2r/1pQR3k/bPq2nQ1/Qnn3Q1/RN2p1Bp/1NBqP3/3R3K/b1B5 b - - 0 1 illegal: No possible last move
rq3N2/2p3R1/1bq1p3/npPkPNQ1/bQn1Q1NB/2K2R1B/1r4n1/1QR4n b - - 0 1 illegal: No proof kernel
3R2R1/1p3brQ/2bQpb2/1PR1P1B1/KBB4b/nNQ3R1/pq1rq3/N3nk2 b - - 0 1 illegal: No proof kernel
1BR1B2k/1Qp4n/N3N1BB/bbRK1pbp/2P1rPQb/2q4r/5nq1/3Q2N1 b - - 0 1 legal: proof: e4 d5 h4 dxe4 a4 g5 hxg5 b5 axb5 Bg7 Nc3 Bh6 Nb1 Bf8 Ke2 f5 Ke3 Kf7 b4 Kg7 g4 a5 d4 e5 b6 h5 b7 a4 b5 a3 b6 a2 d5 Qd7 g6 Nf6 d6 Be7 g5 Kg8 g7 Qe8 d7 Nc6 b8B Ba6 d8N Be2 b7 Bc4 Nd2 Nb4 Ne6 Qg6 Nb3 Nh7 Nbc5 Nd3 Na6 Bb5 f3 Nf2 c3 Bd7 Bb5 Bc6 Rb1 a1Q c4 Be8 Rh3 Bc6 Rg3 Ra7 Ba4 Bb5 Rb2 Bd8 Rd2 Bf6 Rd5 Ra8 Rc5 Qc3+ Ke2 e3 Rg2 e4 Rg4 Kf7 g8B+ Ke7 Bf7 Re8 Rg2 Qg8 g6 Bg5 g7 Kf6 Bg6 Re7 Ba7 Rd8 b8Q Rd3 Qb7 Qa8 Rg3 Re8 Kf1 e2+ Kg2 e1B g8Q e3 Bb8 e2 Be3 Bh4 Bh6 Bg5 f4 Bd2 Re3 e1B Kf3 Re7 Ke2 Re8 Re4 Rh3 Rd4 Re7 Rd8 Re8 Rc8 Re7 Qa7 Qg2 Qa8 Qd4 Qc6 Ba5 Qf3 Qb2+ Ke3 Qc2 Kd4 Qc3+ Kd5 Re8 Nd8 Re4 Qg4 Nh1 Ne6 Beh4 Qe8 Nf2 Qc6 Nf8 Bh7 Kf7 Bg6+ Kg8 Qb7 Kh8 Nb4 Ba6 Bc6 Bb5 Bce8 Nh7 Na6
1RRR1B1B/5K2/2Nb4/2R1QppQ/2n2n1q/4NBkN/4bPPp/2qqqrr1 b - - 0 1 illegal: Other
nbN2b2/2p2Kp1/B2rQ3/1q1nQRbN/1q2R3/pr1QNNP1/2P1bk2/3BB3 b - - 0 1 illegal: No proof kernel
7b/2Np1rRQ/p1NPN3/K2n1n2/PB1r1QR1/1N6/bqppR3/2kBQ1rn b - - 0 1 illegal: No proof kernel
qR1b2R1/p1pkr3/B7/Kb1p3b/N2QBNpr/BN4P1/Q2Pn3/Q1Q2n1r b - - 0 1 illegal: No proof kernel
R2q1rr1/2B1QN1n/pNp2pk1/P2BQ3/1NQ1K1p1/BRB2P1b/1b6/1nb3n1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g4 h5 gxh5 Bd6 Nd2 Ba3 Nb1 Bf8 Kd2 g5 Ke3 d5 b4 d4+ Ke4 c6 a4 g4 h4 c3 b5 d3 b6 d2 b7 c2 f3 Qb6 h6 Nd7 b8B Ba6 h7 Nh6 h5 Bb4 e6 Qf2 e7 Rg8 h8B Ba3 Nc3 Nf8 Nh3 Bd6 Nd5 Qg1 Nhf4 Qg3 Nb6 Rg6 Ba3 c1B Qb3 d1N Nfd5 Bb2 Bc7 Bc5 Bc3 f6 Qc4 Kf7 e8Q+ Kg7 Qe5 Nf5 Nb4 Nd4 h6+ Kh7 a5 Rg8 Rb1 Kg6 h7 Qf2 e3 Qd2 Rh5 Bc1 Rb3 Ne2 Rh3 Qd8 h8N+ Kg7 Rh6 Nh7 Nf7 Ng1 Rh3 Kg6 Be2 Nf8 Rh8 Bd4 Bd3 Bb5 Bb1 a6 Ba2 Nh7 Qe7 Rg7 Re8 Rg8 Rf8 Qd7 Rc8 Qd8 Qe5 Ra7 Ra8 Rb7 Qe7 Rb8 Ba1 Bc5 Qf1 Bd3+ Kf4 Rb7 Rb1 Be4 Bd5 Bc2 Qd7 Bd3 Rb3 Qb8 Bd4 Bb2 e4 Nc3 e5 Nb1 e6 Bf8 Qc1 Bf1 e7 Bh3 e8Q Bh6+ Ke4 Be3 Qc5 Bec1 Qe5 Qc8 Qdd6 Rb8 Bc3 Qd7 Qde6 Rbf8 Qee7 Qd8 Qc4
2nr1Q1b/3bp3/b1n1pQK1/1RR2B1r/2B4B/2p1k1p1/R1PNPR2/1q2Nr1Q b - - 0 1 illegal: No proof kernel
1rRB1Q2/1qNB1r2/p4p2/1R1b2n1/b3QP1k/P2K2Qr/p5pn/1NRNQ1b1 b - - 0 1 illegal: No possible last move, all moves rejected
8/1Bkp2N1/2BB2qr/n2PpN1p/b1NqB1RP/1Qp4r/Kn2rb2/1QQ3R1 b - - 0 1 illegal: No proof kernel
k3q1bq/pp3B2/nR2RpRB/1rpNB3/1PP4N/1b3rQK/R1n5/b3N2Q b - - 0 1 illegal: No proof kernel
kr1qn1R1/4npp1/R3bBPq/p3Q2r/2bNK2N/1Q3p2/P3QbB1/1B2R2B b - - 0 1 illegal: No proof kernel
1r1b1K2/1Rp1RN2/3p1Nqn/N2Q1pp1/3n1r2/1Q2BbP1/2N2PBk/3qB1Rn b - - 0 1 illegal: No proof kernel
3k3B/Np1p1pn1/Q1r4b/1BQRr1Bb/1p1Pq3/b1R1n2N/1P1NNKQ1/3q4 b - - 0 1 illegal: No proof kernel forced: wxLB
1BQN2q1/Rn1Q1p2/Q1pQp1N1/3RnqNK/3Rbr2/2k1p2b/3rPP2/1Bb5 b - - 0 1 illegal: No proof kernel
3NR2q/QpRQ1RN1/BK1pnr1p/1PB2Q2/k1br3b/5b2/3p3P/1Nq1Q1n1 b - - 0 1 illegal: No proof kernel
3KnN1R/r1p3p1/pbQBQp1R/N4Q1B/5r2/2R1r2N/2PNk1P1/1brn3q b - - 0 1 illegal: No proof kernel
1R1RNBN1/n3p1Nb/p4p2/3pr1pB/1BkBP3/3bQP1r/qQ4R1/b2nK3 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 h4 g5 e4 a6 b4 d3 c4 d6 c5 Kd7 h6 Ke6 b6 Nf6 h7 Nbd7 h5 Nd5 b5 Ke5 c6 Kd4 c7 Bg7 b7 Nc3 b8Q Nb6 h6 Qd7 Qe2 Nba4 b6 Ra7 b7 Qe6 Ra2 Bd7 c8N Rg8 h8B Qh3 h7 Qg3 Qe3+ Kc4 Nh3 Nb5 Nc3 Nb2 Be2 Bf6 Nd5 Bg4 Bg7 Bh5 h8B Bg6 Bf8 Nd1 Bh5 Qg2 f3 Bh7 Ba3 Ba1 Bd4 Rh8 Nf6 d5 Bac5 Ra8 Bb4 Na7 Ng8 f6 Qh2 Rb8 Nf4 Qb2 Ne6 d2+ Kf1 Qb3 Ng7 Qa3 Rb2 Qa2 Ke2 Nf2 Rg1 d1B+ Ke1 Be2 Rg2 Bd3 Qe5 Nd1 Rbc2+ Kb3 Nd6 Rd8 Nde8 Rd6 b8R Re6 Rb2+ Kc4 Qh2 Re5 Rd8 Bb1 Bbc5 Bd3 Rbb8 Bf5 Bb4 Rh7 Bg6 Rh3 Bh5 Bg6 Rg3 Bf5 Qb2 Bh7 Rg2
1R1B1n1R/QqNr1p1N/1pp2b1p/1B1p1k2/Q2N1n2/1PP2r2/K1Q2p2/3B1B1b b - - 0 1 illegal: No possible last move
1q4b1/8/1rP3P1/n4B1r/1Bp2qq1/NB1R1nRN/NB1B3k/Q1BK2b1 b - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 a5 axb5 c5 bxa5 g5 c4 Qd7 cxd5 Qd6 h4 Qc6 bxc6 gxh4 f4 Kf7 g4 Kf6 d4 h5 a6 e5 d6 e4 d5 h3 g5+ Kf7 a7 e3 f6 Kg6 f7 Kf5 g6 h4 d7 h2 d8N h3 d6 e2 d7 Kg4 f5 Kg3 f6 Be7 f8B Nh6 f7 Na6 Ne6 Nf5 d8B Rh5 Nf4 Nd4 Nd3 Rb8 a8B Rb6 Na3 Be6 Nb4 c4 Na2 Bg5 Bf6 Nc5 Bh6 Be3 f8B Nb7 Bb4 Na5 Bb7 Bg8 Bc8 Bf2+ Kd2 Nf3+ Kc2 e1Q Bf5 Qe7 B1d3 Qe4 Bfb2 Qg4 Bhd2 Kg2 Qe1 Bd4 Kd1 Be3 Ne2 Bg1 Bc2 Ra6 Rb1 Nd4 Ba1 Rh7 Rb3 Rh8 Rd3 Rh5 Bb3 Rb6 Bab2 Nf3 Kc2 Qg3 Bdc3 Qb8 Bg5 Bd4 Rf1 h1Q Qc1 Qhh2 Ng1 Qhc7 Be3 h2 Kd1 h1Q Qa1 Qf4 Nh3 Kh2 Rg1 Qg2 Bec1 Qgg4 Rg3 Bg1 B3d2
Q1b4N/2K2n2/NP5q/1k2PR2/1BBqR1p1/2B1Nb2/q3NbN1/1bN2q2 b - - 0 1 legal: proof: b4 b5 c4 a5 a4 e5 axb5 d5 cxd5 a4 f4 exf4 g4 Ra5 bxa5 Bc5 Nc3 Bd6 Nb1 Bf8 h3 g5 Nf3 h5 Rh2 f5 Ng1 f3 Rh1 f4 Na3 Nc6 Nb1 Nd4 h4 Nf5 gxf5 g4 Ra2 Rh7 Ra3 Rg7 Ra1 Rg5 hxg5 Bc5 Ba3 Bd6 Bc1 Bf8 Kf2 Kd7 d4 c5 e4 c4 e5 c3 b6 h4 g6 c2 g7 h3 f6 a3 d6 Kc6 a6 a2 d7 h2 f7 Qf6 d8N+ Kd7 a7 Qd6 a8N Qh6 d5 Bd6 f8B Qe6 Nc7 Nh6 g8N Qf6 Bd2 c1Q Nf7 Ba6 Ne7 Qh8 Bc3 Nf5 Ne2 Qf6 Nh8 Qb2 Nd2 Bb4 d6 Bb5 Nb3 Bd3 Nc1 Qe6 Ned5 Kc6 d7 Qh6 Na6 Bb1 d8N+ Kb5 Ne3 Bc5 Qd5 Nd6 Ne6 Nf7 Qa8 Qc2 Rg1 h1B Rg2 Bd4 Bfb4 Qd1 Rh2 Bc5 Rh5 Qd4 Rf5 Bg2 Ng5 Bh1 Nh3 Bg2 Kg1 f2+ Kh2 f3 Kg3 Bd3 Rb1 a1Q Nhf4 Qa2 Rb2 Bh1 Nfg2 Bb1 Rd2 Qdd5 Rd4 Qdc4 Re4 Qd4 Nh4 Bg2 Rg5 Bh1 Kf4 Bg2 Kf5 Bh1 Bg2 f1Q Bh3 f2 Nhg2 Be7 Rh5 Bh4 Rg5 Qh5 Kf6 Qh6+ Ke7 Bg3 Ne1 Bf3 N1g2 Qe1 Ke8 f1B Rf5 Bf2 Ke7 Qdc4 Kd7 Qd4+ Kc7 Qed1 Ng3 Bc4 Nge2 Be6 Ngf4 Qg1 Bf1 Bc8 Nfg2 Qgh1 Ng3+ Ka4 Bc4 Qf1 Bb3+ Kb5 Nge2 Bc2 Be6 Bb1 Bc4+
BbB1n1r1/6b1/3RnRPN/4K1N1/1N1r4/1qN1PbNn/N2R1k1q/1Q5q b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 Nc6 c4 Bb7 cxd5 Bc8 Ba3 Bg4 axb5 Bd7 b6 Nb8 b5 Bc8 Bb4 axb4 Kf2 Kd7 Kg3 c5 Kf4 h5 g4 f5 d4 c4 e3 h4 d6 Ke6 d5+ Kf7 e6+ Kg6 b7 b3 d7 c3 e7 h3 d6 c2 b6 c1B Ba6 h2 Nc3 b2 Ke5 b1Q Nge2 f4 Ra2 f3 Rd2 f2 Ng3 f1Q e8B+ Qf7 Rf1 Qc7 d8N h1N Ne6 Nf6 Bc6 Bg7 Rff2 Ne8+ Rf6+ Kh7 g6+ Kh6 Qg1 Rg8 Ng5 Bb2 Qf1 Qa1 Qb1 Nf2 Bf3 Nh3 Bd5 Qc6 d7 Qa2 d8R Bd7 Bf3 Qfb3 Bg2 Bf5 Bh1 Qg2 R8d6 Qh2 Bf3 Qd1 Bc6 Qab3 Bg2 Qdh1 Bc6 Bf8 g7+ Bg6 Bg2 Nd7+ Kd4 Ba3 Ne6 Nb8 Ke5 Bc5 Bc6 Rh8 g8N+ Kh7 g5 Bg7 Na4 Be4 Nh6 Rg8 Nc3 Ra7 Bd7 Ra8 Bc8 Ra7 Bc4 Ra4 Bd5 Rb4 Ne2 Na6 b8N Rd4 b7 Nac7 Nc6 Bb6 b8N Ba7 Na6 Bb8 Nec5 Ne6 Nc3 Bf5 N5e4 Bg4 Nab4 Be2 Nba2 Bh5 Nf7 Be2 Nh8 Bh5 g6+ Kh6 Ncb4 Be2 Nc5 Kg5 Nf7+ Kg4 N5e4 Bd1 Ba8 Bf3 Neg5 Nf4 Nge2 Nh3+ Nf4 Kh4 Nh6 Kg3 Nfe2+ Kf2+ Ng3+
1R3nB1/3bqRn1/Nr1q4/8/rNQ3nR/2bn2P1/NN1PkqBN/2N4K b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 Ra7 c4 Qd7 cxd5 Qd8 Ba3 Rb7 axb5 Ra7 b6 Ra6 b5 Ra8 Bb4 axb4 f4 Kf7 Kf2 e5 b7 h5 d6 c5 g3 b3 Kg2 h4 f6 Ke6 f7 Kf5 g6 Ke4 b6 c4 d7 c3 f5 b2 f6 c2 g7 c1Q Qa4+ Bb4 f8N Qc6 f7 Nf6 g8B Rh6 Ng6 Qe7 d8N Nbd7 b8N Ne8 f8N Ng7 Nfe6 Nf8 b7 Bd7 Nf3 h3+ Kh2 Ra6 Bg2 Kd3 Ned4 e4 Nb3 e3 Nc3 b1Q Na2 e2 Rf1 e1N Nge5+ Ke2 Nd3 Rf6 Nb2 Bc3 Qc4+ Nd3 Rh1 Ra5 Na6 Qf1 b8R Ra4 Rc1 Qcc5 Nc6 Rg6 Ncb4 Rb6 Rd1 Qcd6 Re1+ Kf2 Re4 Qe1 Rh4 Ke2 Ne5 Qf1 Ng4 Qf3 Rf1 Qfe3 Kh1 h2 Rf7 Qec5 Bh3 Qce3 Kg2 h1N Nh2 Nf2 Kg1 Qef4 Bg2 Ng4 Kh1 Qf2 Nbc1+
2rRB1B1/q5kn/1PNR3q/5P2/B1n4q/1b1r4/Q2N1BbB/KBn1R2q b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 e4 f5 c4 fxe4 cxd5 Bg7 axb5 a4 Bc4 Bd4 Bd3 Bb6 Bf1 Ba5 bxa5 Bd7 Nh3 Be6 Ng1 Bc8 d4 Kf7 Kd2 h5 Kc3 c5 Kb2 e5 g4 c4 f4 e3 a6 e4 b6 h4 a7 h3 g6+ Kf6 f5 e2 g5+ Kg7 d6 e1N d7 e3 d5 e2 d6 h2 Qc2 Nf3 Nd2 e1Q Bd3 Rh3 Ne2 Ne5 Nd4 Rf3 Nc6 c3+ Kb1 a3 Qa2 Qf6 d8R Qh4 d7 Nc4 Re1 h1B Bc2 Qf7 Ba4 Na6 Bb2 Rb8 a8B Nc5 Re6 Rh3 Rd6 Nf6 Bb7 Ra8 Ba6 Rd3 B6b5 Nh7 Bc1 Qf8 Bb2 Kg8 g7 Bg2 Bc1 Kf7 g8B+ Kg7 g6 Nb3 Bd5 Ba6 Be4 Rc8 Bb2 Kg8 g7 Nc1 Ne7+ Kf7 g8B+ Kg7 Nc6 Bb7 Re8 Qff6 d8B Qfh6 Bc7 Ba8 Red8 Bb7 Nb4 Bd5 Be8 Bf7 Rc6 Be6 Bh2 Bf7 Rcd6 Bd5 Qb3 Be6 Nc6 a2+ Kc2 Bf7 Rb1 a1Q Qa2 Bd5 Ba3 Be6 Bc5 Bf7 Bf2 Be6 Qb2 Qa3 Qa2 Bf7 Bb3 Qa7 Ba4 Be6 Rb2 Bf7 Kb1 c2+ Ka1 Ne3 Bf4 Bb3 Rb1 Nc4 Bh2 Ne2 Bd7 c1Q Be8 Qh1 Rf1 Nc1 Re1 Rc3 Bc2 Rd3 Bb1
1K2R1bq/1NR4b/q1r1R2k/bN1B1RqB/2P1P1R1/4nb1n/1QR4n/6N1 b - - 0 1 legal: proof: f4 b5 a4 e5 axb5 f5 d4 c5 dxc5 a5 fxe5 h6 Bg5 hxg5 g3 f4 g4 Ra6 Nd2 Rf6 Nb1 Rf5 gxf5 Rh4 Bh3 Rh5 Bf1 Rh8 Kd2 Kf7 Kc3 d5 Kd4 a4 c4 f3 h4 f2 b4 a3 e6+ Kf6 b6 g6 c6 Kg7 Ke5 d4 c7 g4 b5 a2 h5 g5 h6+ Kh7 f6 d3 f7 g3 e7 g2 e8B d2 b7 g4 b6 g3 Rh2 Ba3 f8R Qg5+ Rf5 Na6 b8R Bb4 b7 Be6 c8N Nf6 Qb3 d1B Na3 Ba5 Kd6 Nb4 Nb5 Bg8 Bh5 Ng4 Qb2 Nc2 e3 Be2 Re1 a1Q Kd7 Qf6 Ncd6 Bf3 Kc8 Qc3 Bd3 f1B Be4 Bd3 Bd5 Qa2 Rh4 Nh2 Rg4 Qe5 Ra8 Qa3 b8R Qec3 Ne2 g1Q Nb7 g2 Ra7 Qd6 Rba8 Qa6 Kb8 Qg7 Rc1 Qh1 Re1 g1N Rc1 Nh3 Ng1 Bde4 Re1 Qg5 Rc1 Qc6 Ra6 Qcf6 Re6 Bd3 Ra7 Qfg6 Ree4 Qa6 Re6 Bde4 Rff4 Bf5 e4 Ne3 Rc2 Nhf1 Re5 Bg2 Bhf7 Nf2 N7d6 Bf3 Rc7 Qhh4 Nb7 Nh3 Ree7 Nh2 Be8+ Bf7 Re5 Rg8 Ree7 Rg6 Re5 Rc6 Re6 Bg6 Rf5 Qe7 Rd6 Bg8 Bef7 Qeg5 Rdf6 Kh8 h7 Kg7 Re6+ Kh6 Qb1 Qe1 Qb4 Qc3 Qb2 Qcf6 Be8 B8f7 h8R+ Bh7 Rf8 Bfg8 Bg6 Qd4 Rfe8 Qh8 Bh5+
2KNBn1N/k5B1/1R1bPQn1/nR6/1qB1N3/1r1N4/1bP1Nbbn/5bN1 b - - 0 1 legal: proof: d4 b5 f4 c5 h4 cxd4 a4 a5 axb5 e5 fxe5 g5 g4 f5 gxf5 g4 Ra4 Ra6 Ra3 Rg6 Ra1 Rg5 hxg5 Ba3 Rh4 Be7 Rh1 Bf8 Kf2 d5 Kg3 Kd7 Kf4 Kc7 e4 Kb6 b4 h5 f6 a4 e6 a3 Ke5 a2 f7 g3 g6 d3 g7 g2 e7 d4 e8B h4 Qf3 h3 Nc3 h2 Nce2 d2 Rb1 d1N Bh6 a1B Qf6+ Ka7 b6+ Kb7 b5 Ne7 g8N Ne3 Bg7 Nd7+ Ke6 d3 e5 d2 Rb3 Ka8 b7+ Ka7 b8N d1N Na6 Ng4 Nb4 Qa5 Nd3 Nb2 Rb4 Nc4 b6+ Kb7 Rb1 Ng6 Rb5 Bd6 f8N Kb8 b7 Qb4 Rb6 Ka7 b8N Na5 Rb5 Ba6 Nc6+ Ka8 Nd8 Bb2 Rb6 Rh3 Rb5 Ka7 Rb6 Nh4 Ng6 Bb5 Nh8 Ng6 Qg5 Rf3 Nf6 Ba6 Ne4 Ndf8+ Kd5 Rh3 e6 Bb5 Qf6 Ba6 Nf3 g1B Rb5 Bf2 Nfg1 Nb7 Kc6 Re3 Nh3 Rf3 Rg1 h1B Rg3 Re3 Nhg1 Bg2 Rb6 Nh2 Rg5 Bc4 Rgb5 Rg3 Ndf4 Rb3 Nd3 Bdc5 Kc7 Na5 Kc8 Bd6 Ne1 Bh3 N2g3 Bd5 Bc4 Bf1 Nd3 Ba8 N3e2 Bc6 Ng5 Bcg2 Ne4
N3b3/b2n1Pnn/rB1K1N1P/N2R4/N1B1R3/n1n1r2r/Q4B1n/1Nk4N b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 g4 h5 Ra4 h4 Ra2 Qd6 Ra1 Qg6 h3 Qh5 gxh5 g4 Ra3 gxh3 Ra2 Nh6 Ra1 Ng8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 c5 f4 a5 d6 e6 f6 h2 f5 c4 f7 h3 h6 c3 f6 c2 d5 Kb3 b6 a4 d7 a3 d8N a2 d6 Be7 f8N Ra7 d7 Ra8 f7 Ra6 b7 Bc5 Nh7 Ba7 Qe2 Nf6 Nc6 Re8 d8B Nbd7+ Kd6 e5 b8N e4 Be3 c1N Bf2 e3 Bb6 Re5 Qd2 e2 Qa5 Kc2 b4 e1N b5 Nf3 Bc4 Re3 Ne2 Bb7 Re1 h1N Ng3 h2 Rd1 Ne2 Rd5 Ba8 Qa4+ Kc1 Na5 Bc6 Qb3 Nf8 Nd7 Nc3 Nc5 Be8 Na4 N6d7 Nf6 Nh7 Be1 Nf2 Nh1 Ng4 Bf2 Nd4 Na3+ Kd2 Re1 a1N Qa2+ Nc2 Re2+ Kc1 Nb1 Rg3 Re4 Na3 Bd3 Re3 Bc4 Nc6 Bc7 Nd4+ b6 Ne6 Bd8 Ng7 Bc7 Nb8 Bd8 Nc6 b7 Nce5+ Bb6 Nd7 b8N Nde5 Ng3 h1R Nbd7 Rh3 Nh1 Nh2 Nf8 Nc6 Ne6 Ne5 Nc7 Nd7 Na8
2q5/RB1N1qkP/2RrP1bR/n1Qr3N/1N1B2r1/2r5/K2n1N1N/1nN3n1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 b5 a4 Bc5 f4 exf4 axb5 a4 Bg2 Bb6 Bf1 Ba5 bxa5 Rh7 Nc3 Rh6 Nb1 Rh8 h4 Kf8 e4 f5 d4 g5 Kd2 c5 Kc3 g4 Kb2 a3+ Ka2 c4 b6 f3 a6 f2 e5 f4 b7 f3 a7 g3 d6 g2 h6 c3 d7 c2 e6 Ne7 h7 Qb6 d8N Qa5 d5 Qb5 d6 Qb6 d7 Nbc6 b8N Nd5 h5 Na5 h6 Ne3 Nc3 Qb4 Nb7 Qb6 d8N Rg8 h8R Qc7 h7 Bd7 Nc5 Qf4 Bb2 c1R Qd4 Nc2 Ba6 f1N Nd1 f2 Nf3 g1N Rh6 Nd2 Nb3 f1R Ndc6 Be8 Bb7 Bg6 Nf2 Qf7 Nb4 Rfe1 Qc3 Re5 Nh2 Kg7 Nd7 Rad8 Nf6 Rd6 a8N Red5 Qe3 Re1 Qe5 Re3 Nb6 Rg3 Rc1 Rg4 Qh5 Rc8 Nbd7 Rc3 Qg5 Ne3 Qh5 Nef1 Ra8 Nb1 Ra7 Nfd2 Rc2 Rdd3 Qc5 R3d5 Ka1 a2 Nc1 Rh3 Bd4 Re3 Rc3 Rd3 Kb2 a1Q+ Kc2 Qa4+ Kb2 Qc6 Ka2 Qa6 Qb5 Rf3 Rc6 Rfg3 Qc5 Rc3 Ba8 Qc8 Bb7 Rd3 Be3 Rb3 Bd4 Rc3 Nh5+
3Qq3/R1BRP3/qbB5/kR1Rqn1r/n1R1q3/PnRN1q2/KB2qN2/8 b - - 0 1 illegal: No possible last move, all moves rejected
1n3R2/Brr2Bn1/bp3Q1B/r2P4/nNN1q1B1/3PR2B/1kb2B1K/1Nq5 b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 exf5 d5 cxd5 e5 g4 e4 gxh5 Bd6 b4 Be5 fxe5 axb4 Kf2 Kf7 Kg3 c5 h4 g5 e6+ Kf6 h6 Ke5 f6 Kd4 f7 g4 f8N b3 e7 b2 e8B e3 h5 e2 h7 e1N h6 c4 Nh3 c3 Nf4 c2 Nd3 Ra6 Bf7 Nf6 Rh3 Ne4+ Kh2 Ra5 Qf3 Ra4 Qf6+ Kc4 Ng6 Qe8 Re3 Ng5 Bh3 Ne6 Nb4 Ra5 Ne5+ Kd4 a4 Nd3 Ra3 Rf8 h8B Ndc5 h7 Ng7 d3 Rg8 Bd2 c1Q Be1 Qe7 Bf2 Rd8 Rc3 Rd7 Rb3 Rc7 Ra3 Ra6 a5 Na4 Rc3 Ra8 a6 b6 a7 Ba6 Rc6 Rd7 Rc8 Rc7 Rf8 g3+ Kg2 Nf5 Bg7 Qe8 Bh6 Ng7 h8B Qe6 Nd2 Kc3 Nb1+ Kb3 Bg4 Qe7 Kh3 g2 Kh2 g1R Bh3 Qe6 Bg4 Qf5 Bh3 Qe4 Bg4 Nd7 Bh3 Rb8 a8B Rbb7 Bg4 Nb8 Bh3 Ra7 Bc6 Rab7 Bcd7 Rf1 Nc3 b1B Bdg4 Bc2 Nb1 Ne8 B8g7 Kb2 Bf4 Rd1 Bgh6 Ng7 Rf3 Rc5 Nc3 Nd7 Nbc6 Qce3 Nb4 Ra5 Nec6 Rc1 Bb8 Bd1 Ba7 Nb8 Nb1+ Rc3 Ne5 Rcc7 Rg3 Qc1 Re3 Bc2 Nc4+
Rb2rN1r/2n1Pk2/2NN3B/Npq1P3/r3R2B/1b1Kn1Q1/N5Nq/q4B2 b - - 0 1 legal: proof: c4 d5 cxd5 a6 b4 Bh3 f4 Bc8 b5 axb5 g4 h5 gxh5 e5 fxe5 b6 a4 Rh6 a5 Rh7 axb6 Rh8 e4 c5 Ke2 f5 h4 g5 d4 f4 d6 g4 d5 c4 e6 g3 b7 c3 h6 c2 h5 f3+ Kd3 f2 e5 g2 h7 Bg7 h6 Ne7 d7+ Kf8 d6 Nbc6 b8N Qe8 d8B Ra6 d7 Ra8 Qf3+ Bf6 Qg3 Nf5 Nc3 Ra7 Nf3 g1Q Ne1 Qh2 Na2 Be7 Ng2 Bd6 Bh4 Ra4 d8N Qe7 Nb7 Ne3 Na5 Nd4 Nbc6 Bb8 Rg1 Qa7 e7+ Kf7 Bd2 c1Q Rh1 Re8 h8N+ Ke6 h7 Qac5 Ng6 Kf7 Nf8 Ne6 Rg1 Nc7 Rh1 Be6 Rg1 Ng4 Bh6 Bb3 Rh1 Qb2 Re1 Qbc1 Re4 Qa1 h8N+ Kg8 Be2 f1R Nf7 Rf5 Nd6 Rh5 Bf4 Rh7 Bh6 Rh8 Rc1 Bd1 Bf1 Bb3 Ndc4 Kf7 Rc3 Bd1 Ra3 Bb3 Nd6+ Kg8 Nf4 Rb4 Nab7 Rc4 Ra8 Ra4 Qh3 Ne3 Nba5 Ne6 Ng2 Nc7 Ndb7 Kf7 Qf3+ Kg8 Qg3+ Kf7 Nd6+
R3r2b/3p1q2/bB2R1Q1/1b4N1/R2rN2k/1q3BPn/3RPq1B/2Rn2RK b - - 0 1 illegal: No possible last move, all moves rejected
1n2b1q1/pr1B1R2/1B3BR1/2PrrQNB/1k4bb/1q1RnN2/4K2P/B3B3 b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 b5 f4 e5 fxe5 f5 exf5 b4 d4 cxd4 a3 Be7 axb4 Bd6 b5 Bf8 b4 Ke7 c4 d5 c5 g5 e6 d3 f6+ Ke8 h6 d4 e7 Kd7 e8B+ Ke6 b6 Kd5 h7 Kc4 b5 g4 b7 g3 b6 g2 f7 Bg4 Bg5 Bf5 Qc2+ Kb4 Be2 Qc7 Ra6 Qc6 Bd7 Qe6 Nd2 Nf6 Ne4 Nd5 Bh5 d2+ Ke2 d1R Bf6 Bg4+ Nf3 Be7 f8R g1Q Rf7 Ne3 Ng5 Re8 h8B Qb3 Qf5 Qg3 Rg1 Rb1 Rd1 d3+ Kd2 Bd8 Ba1 Re5 Bf6 Qh3 Ke1 d2+ Kf2 Qg3+ Ke2 Nc6 b8B Rd5 Bbe5 Nb8 b7 Rb2 Bc7 Qg1 Rf1 d1B+ Ke1 Be2 Bb6 Bb5 Ra3 Be7 Rg7 Bc6 Rg6 Rb1+ Ke2 Re5 Bc8 Be8 Be6 Rd1 Bd7 Rdd5 Rf2 Nc6 b8B Qg3 B8c7 Rb8 Bd6 Rb7 Rf1 Nb8 Rf2 Rd4 Rf1 Qg8 Rd3 Rdd5 Rf2 Qf4 Rf1 Qc4 Rf2 Qb3 Bdc7 Re6 Bg3 Ree5 Rf1 Bd8 Be1+ Kc4 Bg7 Bc7 Qe6 Rf5 Rf2 Bg3 Bge5 Bh3 Nd4 Bh4 Bh8 Re5 Rf7 Bg4+ Ndf3 Na6 Bf6 Nb8 Bf2 Kb4 Qf5 Qa4 Bg3 Qb3 Be1+
4N1B1/2P5/1q1RRrb1/1nNRp3/1Q3PN1/n2rbN2/bN6/Kb1NrB1k b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 gxh5 a5 b4 Rh7 b6 Kf7 b5 Rh8 Ba3 Ke8 Bb4 axb4 Kd2 Kf7 Kc1 Kf6 Kb2 Kg5 f4+ Kh4 c4 e5 c6 d5 f6 g5 b7 g4 c5 d4 b6 d3 f7 d2 c7 b3 h6 g3 c6 g2 h7 Nd7 b8N Ra3 b7 Nb6 Nf3+ Kh3 Nd7 Qg5 b8N Ra4 Qe1 d1B Nf6 Rc4 Qb4 Bc5 f8R Bc2 Na6 Bd1 Nc3 Be6 c8B Bd7 c7 Ne7 Ra5 Qg8 Ka1 Qg5 Rd8 Be3 Ne8 Be6 Rad5 Nc6 Nc5 Rf8 h8N Rd4 Nf7 Rd3 R8d6 Qg6 Nh6 Na7 Ng4 Bc2 Nd1 Rf6 Bd7 Bf7 Be6 Nb5 Rg1 Qh6 Rh1 Bg6 Bg8 b2+ Ka2 Re6 Be2 g1R Rc6 b1B+ Ka1 Nc4 Ra6 Kg2 h4 Be4 h5 Qf8 h6 Re1 Bf1+ Kg3 Rh5 Bb3 Rg5 Qf5 Rg6 Nca3 Rf6 Qg6 h7 Rd4 h8N Rd3 Nf7 B3a2 Nfd6 Qh6 Be2 Kg2 Bf1+ Kh1 Nc4 Rb6 Rc6 Qd6 Ncb2 Bg6 Nca4 Qc5 Rf6 Re6 Rad6 Qc6 Nc5 Qb6 Rf7 Rf6 Re7 Rb3 Ree6 Rc3 Nc4 Rd3 Ncb2
QN1B3R/b3n3/qB1rbN2/B3N1bB/2r4p/3RB2B/P2P3q/1nb2K1k b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 g3 h4 g2 f6 Be6 f5 Qd6 e5 Bc8 f7+ Kd7 Nf3 Qf6 exf6 g1R Na3 Nc6 Nb1 Rg5 hxg5 Nb8 Ng1 Ra3 Kf2 Ra5 Ke1 Ra8 d6 Kc6 d7 Kd5 d8B Ke4 g6 b5 g7 e5 Rh2 c5 Ba5 h5 Nh3 b3 Re2+ Kf3 Bb2 b4 Ba3 e4 Bc1 c4 Bb2 c3 Bd8 e3 Qc1 c2 Nf4 Nd7 Ng6 Rh6 Bd4 b2 Nc3 b1Q B4b6 b3 Nd5 b2 Bh3 Ne5 Kf1 Ne7 g8B Nc4 Ne5+ Kg3 Qd1 c1B Qa4 Qd3 Bh7 b1Q Bg6 Bg7 f8N Na3 f7 Qa6 f6 Be6 Nfd7 Rc8 f8B Rc4 f7 Bf6 Nb8 Bg5 Nf6 h4 Bh5 Qb4 Rb1 Qd6 Rb3 Nb1 Rd3 Qc7 Re1 Kh2 Bg7 Kh1 f8B Rg6 Bh6 Qd6 Re2 Qc7 Rg2 Qd6 Qc6 Qc7 Qa8 e2+ Kf2 e1B+ Kf1 Bf2 Rg4+ Nc6 Bb4 Bg1 B4a5 Bc5 Nd5 Ne7 Rf4 Bf2 Rf8 Qd6 Rh8 Bg1 Bbc7 Ba7 Bcb6 Qc7 Nec6 Qh2 Ne5 Bf6 Bhe3 Bg5 Bdc7 Bg8 Bd8 Rd6 Nf6+ Bd5 Nf3 Be6 Ne5+
2Kb2Rb/1Bp2r2/nRP1N1bN/b1qQ2R1/5kPR/4Rq2/2b2rR1/4B2N b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Bf4 g5 Qc1 g3 Qd2 g4 Na3 g2 Qd1 Nc6 Nb1 Nd4 Bc1 Ne2 Be3 Nf4 Bc1 Nh5 f3 g3 Ra5 Nhf6 Ra1 Ng4 fxg4 Qh4 Ra5 Qg5 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 d5 h4 d4 b4 a4 c4 d3 b6 a3 b5 d2 h5 a2 b7 Qh4 b8R Qh2 e6+ Kf6 e7 Ra7 e8R Be7 c5 Ra3 h6 Bd7 c6 Rd3 h7 Bb4 b6 Qh5 b7 Be6 Nh3 g1B Rh2 g2 Ng5 Ba7 Nc3 g1B Nf7 Ba3 Ne2 B7c5 Rg2 Be7 Nh6 Bb2 Ng3 Bd8 Nh1 Rd7 Ba6 Bf7 Re3 Bg6 Ke4 Re7+ Kd5 Kg5 f6 Rf7 Ke6 Ne7 Kd7 Nd5+ Kc8 Rhf8 h8R Kf4 Rb1 Ba1 Rb5 Nb4 Rg5 Bb2 Ra8 a1Q b8R Qa3 Bb7 Na6 Qb3 d1B Qd5 Qb3 Bd2 Bdc2 Be1 Qc3 Rg8 Qh3 Rh8 Qc5 Rh7 Qf3 Rh8 Rd7 f7 Bc3 Rh7 Ba5 Rh8 Re8 f8N Rf7 Nf5 Re6 Rh4 Ref6 Nh6 Bf2 Re6 Bd4 Re3 Nb4 Ra6 Be5 Rb6 Na6 Ra8 Rf5 Rb8 Bh8 Nd7 Qe4 Rgg3 Be7 Nf8 R5f6 Kd7 Re6 Rc3 Qd3 Rg2 Qf3 Rd8 Re4 Kc8 Re2 Re3 Rd2 Nh7 Rf2 Rg8 Bef6 Nf8 Bd8 Ne6+
4N1R1/NR1rq2B/r3q1q1/bb1b3N/kPb3P1/2N1NNp1/6B1/K2Bn2Q b - - 0 1 illegal: No possible last move
1BB5/5b1P/r3rRr1/RpP2qRN/Qq1N1R2/3nR3/N2br1Rb/3K3k b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 b5 e4 f5 exf5 c6 d4 Na6 a3 Nc7 a4 axb4 a5 c5 dxc5 Nd5 Be3 Rb8 Bc1 Nb6 axb6 Ra8 f4 Kf7 h4 Kf6 c4 e5 b7 d5 b8R g5 c6 b3 c7 g4 c5 b2 h6 g3 h5 e4 h7 g2 h6 d4 Qa4 d3 Rh3 e3 Nc3 b1Q Nge2 g1B Na2 d2+ Kd1 Qd5 Nd4 Be6 c8R Bh2 Rc7 Qb2 Rg7 Ne7 Rg5 Rg8 h8N Qb4 h7 Ra6 Ng6 Bh6 Rf3 Qe5 Bh3 Nd5 Rf2 Qe4 Rfg2 Bf7 Ra8 Re6 Ra5 Ra8 Rb1 Raa6 Rb3 Qf3+ Kc2 e2 Re3 e1R Bg4 Re2 Kd1 Nb6 Bb2 Nc4 Bc1 Be8 Bb2 Ne5 Bh3 Kf7 f6 Nd3 f5 Qe4 Bc1 Qd5 Nf4 Qd7 Kc2 d1R+ Bd2 Rf1 Nh5 Rf4 Kd1 Rg4 Be1 Qd5 Bg3 Qd7 Rg8 Rg6 Bb8 Bg5 Re4 Bd2 Re3 Qc8 Rg7+ Kf8 f7 Ke7 f8R+ Bf7 f6+ Kd7 Nb3 Kc6 Nd4+ Kd5 Bf5 Rh6 R7g5 Rg6 Rf3 Qd7 Bh3+ Ke4 Rfg3 Be8 f7 Qd5 Rf3 Qe5 Rf6 Qf5 Rg8 Ke3 f8R Bf7 R2g3+ Kf2 Re3 Rh6 Bg4 Kg2 Bh3+ Kh1 Rg2 Qe4 R8g5 Rg6 Rf4 Qf5 Bg4 Be8 Rf6 Bf7 Bf3 Re5 Bb7 Ree6 Bc8
b2B1N1N/2pKR1nR/1r3BP1/5R2/4Rn1n/1Q2b1kP/1B2nn2/R1q3Rn b - - 0 1 legal: proof: f4 d5 d4 Kd7 e4 b5 a4 g5 fxg5 Nh6 axb5 Ke6 c4 Qe8 cxd5+ Kd7 d6 Ke6 d7 Ng8 d5+ Ke5 d6 Ke6 Qa4 Qd8 Qb3+ Ke5 Qd1 Ke6 g4 h5 g6 Kf6 g5+ Kg7 Qa4 a5 Qc2 Ra6 Be2 Rc6 Bg4 Rc5 Qd1 Rd5 exd5 hxg4 Kf2 e5 Ke3 f5 b4 e4 Kf4 g3 Ke5 a4 Ke6 f4 b6 a3 h3 g2 b7 a2 b5 f3 b6 e3 Nc3 e2 Qc2 e1N Bb2 f2 Nb5+ Nf6 Nf3 f1N Qb3 g1N Nh4 Nc6 b8R Rh6 b7 Nd3 Nd4 Ne2 Rg1 Ne4 Ra8 Nef2 b8R Nfg3 Ra4 Be7 Rb5 Bb7 Rba5 Qe8 d8B Nce5 d7 Ngh1 d6 Nf3 Rf5 Ba8 Rc4 Bf8+ Be7 Qb8 d8R Ndf4+ Kd7 Qb4 Rb8 Qd2 Re8 Qc1 Ne6+ Kg8 g7 Kh7 Ng2 Kg6 g8R+ Kh5 Re4 Nh4 Rg7 Rg6 Rh7+ Bh6 Nf8 Re6 Rb1 a1N Bef6 Nc2 Ra1 Ncd4 Ree7 Nb5 Kd8 Nbd4 d7 Rb6 Ke8 Nde6 d8B Ng7+ Kd7 Re6 Ne3 Rb6 Nc4 Nf3 Nd6 Kh4 Re1 Kg3 g6 Bg5 Nf7 Bh6 Nh8 Bg5 Qg8 Nh4 Rf1 Nd5 Qe6 Be3 Re1 Ndf4 Qb3 Nfh5 Rd1 Nhf4 Rg1+
n4RR1/6R1/2Qn1b1r/N2K2pB/1P1NR1PR/BrR1Nr2/n2q2k1/6nr b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 b5 cxd5 b4 a3 Kd7 axb4 Ke8 h4 a5 b3 a4 Ra3 axb3 Ra2 Kf7 Ra1 Ke8 h5 g5 Ba6 Be6 Bc4 Bf7 Bf1 Bg6 hxg6 Bg7 Bc4 Bh6 Bf1 Bf8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 f4 h5 d4 c5 f6 h4 f7 c4 g7 b2 f5 h3 f6 c3 Ra3 h2 Nf3 c2 Nbd2 b1R Nc4+ Kc7 d6+ Kc6 d7 Be7 f8R Nh6 g8R Nf5 f7 Na6 Rg7 Nc7 Ne3 Bf6 Re8 Rb3 f8R Rh6 d5+ Kd6 Bb2 c1N Nd4 Na2 Be2 Rc8 g3 Na8 Qc2 Rcc3 Bh5 Rd3 g4 Rdc3 Rd1 h1R Rd2 Rd3 Rh2 Rdc3 Rh4 Rd3 Ng2 Rf3 Qc4 Qc8 d8N Qd7 N8c6 Qd8 Ne3 Qd7 Qc3 Qd8 Kd3 e4+ Kc4 Qd7 Ng2 e3 Na5 e2 Ne3 e1N Rfg8 Qd8 Ref8 Ke5 d6 Kf4 d7 Kg3 Kd5 Nd6 Qc6 Rf2 Re8 Nf3 Re4 Ng1 Rf8 Rf3 Bc1 Rb1 Rc3 Rb3 Ba3 Kf2 Nef5 Kg2 Rfg8 Qc8 d8R Qa6 Rc8 Qe2 Rcf8 Qd2 Ne3+
6Q1/1BPK1R2/R5Nr/NrbpR1N1/rP4Rb/3p3R/3q1k2/B1nnRq2 b - - 0 1 legal: proof: f4 b5 e4 f5 h4 c5 d4 cxd4 g4 g5 a4 Qc7 axb5 Qd8 h5 Bb7 exf5 Bd5 fxg5 Ba2 Ke2 Bf7 Ke1 Bg6 hxg6 Qc8 Ra5 Qc7 Ra1 Qd8 Kd2 a5 Kd3 d5 c4 Kd7 b4 Kd6 f6 Ke5 c5 h5 c6 h4 b6 e6 b7 h3 f7 a4 c7 a3 g7 h2 g6 a2 g5 Qd6 Nf3+ Kf5 Na3 Kg4 Nc4 Kg3 Bb2 e5 Na5 Nd7 b8R Qc5 Re8 Ne7 g8N Rh6 g7 Rc8 g6 Qc1 Ng5 Rb8 Qg4+ Kf2 Rb1 Rb5 Ba1 Nf5 Ne7 Qc6 g8R Qc1 g7 Ne3 Ng6 Nd1 Rb3 Bc5 f8R+ Qf4 Rg1 h1Q Rf7 Qh2 Ree7 Qh1 Ra8 Qg2 g8R e4+ Kc2 e3 Kd3 e2 Ra6 e1B Re5 Qh2 Rh1 Qf6 Rb1 Qg2 Rh3 Qf4 Be2 Qf1 Qe6 Kg1 Rgg7 Bh4 Qe8 Kf2 Qg8 Ne3 Re1 Nd1 Bc3 a1R Bb2 Ra4 Ba1 Qg2 Bf1 Nb8 Be2 Nc6 Bg4 Qh1 Bc8 Qg1 Bb7 Qf1+ Kc2 d3+ Kb3 Qf3 Rf4 Qe2 Rg4 Qd2 Rd7 Qg2 Rg7 Qf1 Rh7 Ne7 Rf7+ Nf5 Qh7 Rb6 Rfe7 Ra2 Qg8 Ng3 Rd7 Ne2 Rh7 Rb2+ Ka4 Nc1 Rg7 Re6 Kb5 Ra2 Rd7 Ra4 Rg7 Re7 Kc6 Re6+ Kd7 Rb6 Rh7 Rb5 Rf7+
B2k1B2/1P1RN3/Rq1QrN2/n2n2p1/2q3NP/1R1p4/1R1b1r2/1RRKbq2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 a5 h4 g5 f4 d5 b4 e5 c5 d3 c6 a4 b6 e4 b5 a3 h6 d4 b7 a2 c7 e3 b6 e2 h7 Be6 c8R Ke7 f6+ Kd7 f7 Ke7 f5 Ra6 f6+ Kd7 Nc3 Bc4 Ba3 Bb5 Ne4 Ra8 Rc7+ Ke6 Nh3 Bc4 Rb1 a1Q Nhf2 Ne7 Bg2 Qa2 Ng4 Nbc6 b8R Ra6 Rh3 Bg7 f8R Bb5 f7 Na5 Nef6 Bd7 Ba8 Qc4 b7 Nd5 Rbc8 Rg8 h8R Rb6 Rh6 d2+ Kf2 Rd6 Rhb3 Ke7 Kf3 e1B R1b2 Qb4 Ke2 Qa4 Rc1 Qb6 R8c7 Qab4 Rfc8 Rf8 Rcb1 Bh8 Rcc1 Qa4 R8c7 Kd8 Nh5 Be5 Nhf6 Bf4 Bb4 Be3 Rg6 Re6 Ba3 Rfe8 f8N R8e7 Rh6 Rf7 Ng6 Qac6 Bf8 Qc4+ Kf3 Bf4 Ne7 Be3 Qc2 Bf4 Qd3 Be3 Ke2 d1Q+ Kf1 B3d2 Rg6 Qcc2 Qg3 d3 Qd6 Qcc5 Rg7 Re5 Qc6 Qa7 Rg6 Qc4 Qe6 Re3 Qe5 Qaa6 Qf4 Qd6 Ne8 Qf3+ Nf2 Qdb4 Ra6 Qb6 Qd6 Rf5 Nf6 Qff4 Kg2 Re6 N2g4 Bf2 Kf1 Bb4 Rbc3 Be3+ Ke1 Bf2+ Kd1 Be1 Rd2 Qf1 Rcb3 Rf2 Rdb2 Bbd2 Rxd7#
k3N2q/1NQ5/1R1N1p2/B1RqbP2/n2N1qpb/R5B1/NP3bNr/1K1n4 b - - 0 1 legal: proof: d4 b5 c4 d5 cxd5 Kd7 e4 a5 a4 Ra7 axb5 Ra8 d6 Ke6 d7 Ra6 d5+ Kd6 Na3 Rc6 Nb1 Ke5 d6 Ke6 Bg5 Rc2 Bc1 Rc5 g4 f6 b6 Bb7 g5 Bc6 g6 Rd5 exd5+ Ke5 Qe2+ Kd4 Qd1+ Kc5 Be2 h5 Bg5 Bb5 Ra3 Bd3 Bd2 Kd4 Nh3 Ke4 Ra1 Kf5 Bg4+ hxg4 Ng1 Bc2 Bb4 Kg5 Bd2+ Kh5 Bc1 Bf5 Ra3 Be6 Ra1 Bf7 gxf7 Kg6 Kd2 g3 Kc2 Kf5 h4 Ke4 f4 c5 h5 e5 b7 g5 h6 g2 f5 g4 h7 c4 Qd2 a4 Qc3 a3 Nh3 g1B Bf4 Bf2 Rc1 Na6 b8R a2 Rb6 Nc5 Qg3 Na4 Nc3+ Kd4 Qh2 Qc8 d8N Kc5 d7 e4 d6 e3 Nc6 e2 d8N Ne7 d7 Nd5 Be5 Bd6 f8N Qb8 Nf4 Bc7 Ng2 Ne3+ Kd2 Nd1 Kc2 e1B Bf4 Bg3 Be5 Bef2 Bf4 Rg8 h8N Qc8 Qh7 Be5 Nhf7 Rh8 Nd6 Qb8 Qf7 Rh2 Qg7 Bh4 Bg3 Be1 Nd5 c3 Nc7 Bf2 Qe7 Qa7 Nce8 Kd5 Nfe6 Qb8 N8g7 Qc8 Ned4 Qb8 Nb4+ Kc5 N8c6 Qg8 Na5 Qh8 Nbc6 Kd5 Nge8 Kc5 Rb3 Kd5 Nb4+ Kc5 Qg7 Kb6 Nab7 Ka7 d8B Kb8 Ba5 Ka8 Kd3 c2 Qc7 Bf4 Nbc6 Be5 Rb6 Qg8 Nb4 Qf8 Rcb1 Qh8 Kd2 c1Q+ Kd3 Qch6 Rc1 Qg5 Rc5 Qf4 Kc2 Qf3 Rb1 a1Q Rc1 Qa2 Ra1 Qe6 Kb1 Qed5 Ra3 Qf4 Na2
q1r4B/3p1B2/bN5r/N1R2NRN/P3rn2/2N3r1/1Pbb3p/QBk3NK b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 h4 c5 hxg5 cxd4 Be2 a5 Bd3 b4 Bf1 b3 axb3 a4 Be3 a3 Bc1 Na6 Nf3 Nc5 Ng1 Na4 bxa4 Qc7 Qe2 Qb6 Qd1 Qd8 f4 Kf7 Kf2 h5 c4 e5 g4 e4 Kg2 d3 g6+ Kf6 c5 a2 g5+ Kg7 c6 h4 c7 e3 Nc3 e2 Be3 e1R Rc1 a1R Bd4+ Qf6 Be5 d2 Bd3 Rb8 Bb1 Ba6 c8N Ne7 Nb6 Kg8 g7 Kh7 g8N Rb7 g6+ Kg7 Nh6 Nd5 Rh3 Bd6 Kh1 Be2 Rg3 h3 Rg5 h2 Bd4 Ra3 Be5 Kf8 g7+ Ke7 g8B Bb4 Bf7 Qc6 Rc2 Rf8 Bh8 Kd6 f6 Kc5 f5 Kd4 Na2 Rc7 Bh5 Ke3 f7 Rf1 f6 Rf3 Rc5 Bc4 Be4 Ba5 Qa1 d1B Bb1 Re8 f8N Kd2 f7 Qa8 Ng6 Rf6 f8N Rg3 Nf5 Bc2 Nge7 Nf4+ Nc6 Re4 Ne6 Ba6 Neg7 Rc8 Bf7 Rh6 Nh5 Bb4 Na5 Kd1 Bd5 Bd2 Nc3+ Kc1 Bf7
1n2q2R/3Rr3/2N1Q3/1NNbrPqb/1K1PB2k/1pBN1p2/3b3B/4NNb1 b - - 0 1 legal: proof: c4 a5 f4 h5 e4 f5 b4 axb4 g4 e5 gxh5 d5 cxd5 Nc6 fxe5 f4 Qe2 Nce7 Qd1 Nf5 exf5 Be6 Na3 Bd7 Nb1 Bc8 h4 Ke7 a4 b5 a5 g5 e6 Kf6 e7 c5 e8N+ Ke7 h6 c4 d6+ Kf7 d7 c3 h5 g4 a6 g3 a7 b3 h7 c2 h6 b4 Nc7 Kf6 Nb5 Kg5 Nf3+ Kg4 Qe2 g2 Qe6 g1B Bg2 Qb6 d8N b2 Nc6 Rb8 a8N b3 Nac7 Qc5 Ra7 Qe7 Na6 Bd7 Nc5 Be8 Rd7 Nf6 d4 Rb7 Kd2 Bh5 Kc3 Rc7 Ne1 Qe8 Be4 f3 Nd2 b1B Bb2 c1Q+ Kb4 Bc2 Nf1 Qg5 Bc3 Ra7 Rd5 Re7 Rd7 Bd3 Rh2 Bc4 Rh3 Rg8 h8N Bd5 h7 Bh6 Nf7 Rg7 h8B Rg6 Rc7 Nd7 Be5 Nb8 Rd7 Rg8 Rh1 Rf8 Bh2 Kh4 Nfe5 Rf6 Qg8 Rfe6 Ne5d3 Re5 Qf7 Qg6 Qg8 Bd2 Qe6 Bge3 Rg1 Qg5 Rg3 Bg1 Rg2 Qh6 Rg8 Qg5 Rh8
4kqnK/q4b2/b3BB1R/1N1Pr1R1/pQ3R2/n1RR3P/1N1Np3/4bR1b b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 f5 exf5 g5 f4 g4 a4 g3 axb5 gxh2 Bc4 Nf6 Be2 Ng8 Kf1 a5 Qa4 h5 Ke1 h4 Qd1 h3 Nf3 Rh7 Rf1 h1B Ng1 h2 Rf3 Rh3 gxh3 Ra6 Nc3 Rh6 Nb1 Rh8 Kf2 c5 Kg3 e5 Kg4 a4 d4 c4 b4 c3 d6 c2 b6 e4 b7 e3 b5 Be6 d7+ Kf7 b6 Bc5 Nc3 Nc6 b8N Bd6 b7 Ba3 Qd2 Na5 Bc4 e2 Bb2 c1Q Nd1 Nh6+ Kh5 Bd6 f6 Be7 f5 Bd6 Qb4 Be5 Nc6 Qf8 b8R Nb3 d8R Qf4 Rb6 Nd2 Na7 Bd5 Rc3 Be6 Nf3 Bd6 Nb5 Nb1 Nd2 Kg8 Kg6 Qe8+ f7+ Kf8 Bd5 Ke7 Kg7 Qf3 f8R Na3 Rg8 Bf7 Be6 Qb7 Rb1 Bg2 Ba1 h1B Nb2 Bf3 Rf1 Qa7 Ra6 Bc5 Rd5 Bd6 f6+ Kd8 Rg5 Bb7 d5 Bg3 Rd3 Bc8 Rc6 Ba6 Rcc3 Be1 Rf4 Bg6+ f7 Bh5 Rf8 Ng8 Rf1 Rh6 Rf6 Rg6+ Kh8 Rg7 Rh6 Rg6 Rf5 Rg5 Rf4 Re5 Rf1 Ne7 Rg8 Bg6 f8R Bf7 Rg5 Ng8 Qh4 Ke7 Qd4 Qc8 Qb4+ Qcc5 Rc8 Qd6 R8c4 Ke8 Rcf4 Qf8 Rc1 Qf2 Nbc4 Re4 Bf6 Re5 Nb2 Qa7 Rcc3
7k/2nn2N1/4Pn2/pP1rRRK1/n2R3N/3rQ1p1/b1BnbBB1/2BB1B2 b - - 0 1 legal: proof: d4 b5 h4 e5 g4 g5 a4 c5 axb5 f5 f4 Qf6 Nd2 Bh6 Nb1 cxd4 fxe5 f4 Bg2 Qf8 Bf1 Qf5 gxf5 g4 Nd2 Ne7 Nb1 Bg5 hxg5 Ng8 Kd2 Kf8 b4 Kg7 c4 h5 e4 d5 g6 a5 f6+ Kh6 e6 f3 e7 d3 Ke3 f2 Kf4 g3 e8B d2 c5 h4 g7 Kh7 f7 d4 f8R d3 b6 h3 c6 h2 b7 Bg4 e5 Bc8 e6 Ra7 b5 Nf6 g8B+ Kg7 c7 Nh7 Qe2 d1B Ra4 d2 Nc3 Na6 b8B Bb7 c8B Bd5 Bh5 Rd7 Nf3 Nc7 Bb7 Nf6 Nh4 Ba2 Rd4 Rd5 Bh7 Nd7 Rf5 Rd8 Ne4 Kh8 Qe3 Be2 Ba7 d1N Kg5 Nc3 Nf6 Na4 Rg1 h1N Ne8 Ne5 Ng7 Nd7 Bh3 f1N B7g6 Bd3 Bd1 Nd2 Re1 Nf2 Bf1 Ng4 Bc6 Ngf6 Ba8 Rd6 Bag2 Bdc4 Qf3 Bd3 Ree5 Be2 Qe3 Rd5 Rff4 Rb8 Bgc2 Rb6 Rf3 Rc6 Rff5 Rc3 Bc5 Rd3 Bb4 Nc4 Be1 Nd2 Bf2
n3k2n/PR6/3R4/3BNpn1/1P6/rNKRBrq1/1nRBpQqr/R1R5 b - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 d5 exd5 a4 b3 axb3 c3 b2 f3 e5 Ne2 b5 Nf4 e4 Nh3 b4 Bg2 e3 Bf1 b3 Ng1 Bb4 cxb4 Bg4 Ba6 Bf5 Bf1 Be4 fxe4 Ra4 Qf3 Ra5 Qd1 Ra8 d4 c5 a4 f5 h4 g5 a5 c4 d6 c3 d5 c2 a6 e2 Kd2 g4 a7 g3 d7+ Kf8 d6 g2 h6 Rh7 e5 Qb6 d8R+ Kf7 e6+ Kf6 d7 Ke7 h5 Rg7 h7 Qd6+ Kc3 Nh6 h8B Nf7 h6 Rg3+ Be3 c1N h7 Rf3 Nd2 b1Q Qe1 b2 Nb3 Qe4 Qf2 b1R Bd4 Nd3 h8R Qg3 R8h7 Re1 Bd2 Nb2+ B4e3 Na6 Rc8 Qeg4 d8R Nc7 Rd6 Qg5 R7h3 Nh8 Rb8 Qg8 Rb7 Ke8 e7 Rb8 Rc1 Na8 Rc2 Ra1 Rc1 Rf4 Nf3 g1N Bg2 Ra3 Ne5 Nf3 Ra1 Q8g7 Rhc1 Ng5 Bd5 Rf3 Rc2 Qh7 Rhh1 Qhh3 Rhc1 Qhg2 Bg8 Ng6 Rc7 Rb7 Rd3 Nh8 Bd5 Rb6 Rb7 Rh6 Rb5 Rh2 Rb7 Ne6 Ng4 Kf7 e8R+ Kg6 Rd8 Ng5 Ne5+ Kf6 Rb6+ Ke7 Rdd6 Ke8 Rb7
2kBr2Q/R1N2n1B/3p2b1/Bpr1p3/B6B/3BR1K1/2rP1Pb1/nq3NN1 b - - 0 1 legal: proof: a4 b5 axb5 c6 b6 Ba6 Nc3 Bb7 Nb1 Bc8 b4 f5 e4 Nf6 exf5 Ng8 b5 cxb5 c4 g5 h4 Ba6 hxg5 Bg7 c5 Bc8 b7 Bc3 Ra3 Ba5 Ra1 Bb6 cxb6 Kf7 Qg4 Kf8 Qd1 Ke8 g4 h5 f6 a5 g6 e5 g7 d6 f7+ Kd7 f8B a4 g5 a3 g6 h4 Bb2 a2 Qh5 h3 Be7 h2 Bc3 Ra3 Bd3 Ra8 Ba5 Rh6 Bh4 Rh8 Kf1 Na6 Kg2 Qe7 b8B Kd8 b7+ Nc7 Nc3 Nh6 g8B Bf5 g7 Bg6 Ne4 Nf7 Bh7 Re8 g8B Qf6 Re1 a1R Ng3 Rc1 Re3 Rc2 Nf1 Ra6 Kg3 Rac6 Ba7 R6c5 b8N Kc8 B7b6 Na6 Bd8 Nb4 Na6 Qf5 Nc7 Qe4 Rf3 Qe1 Re3 Qb1 Qh6 Ra2 Qg7 Nc2 Qf6 Na1 Qh8 Nh6 Bb3 Nf7 Ba4 Rb2 Ne2 Rbc2 Rg1 h1B Rg2 Nb3 Ng1 Na1 Kh3 Be4 Rg7 Bhg2+ Kg3 Bg6 Na8 Ng5 Ra7 Nf7 Nc7
3B3B/1Bp3Bp/B3p1kQ/1rR5/2P2Rn1/r1r1P1K1/qNr1B3/2rN1Nn1 b - - 0 1 legal: proof: d4 b5 f4 e6 a4 Ba6 axb5 Ke7 d5 Bc8 Qd4 Nh6 g3 Ke8 Qf2 Ke7 Qe3 Ng8 dxe6 Kf6 e7 Kg6 Qe6+ fxe6 Bh3 Kf6 Bf1 Kf7 f5 g5 Ra6 g4 Ra3 Bh6 Ra1 Bf4 gxf4 g3 h3 Bb7 Ra4 Bf3 Ra1 Bg4 hxg4 Qf8 Bg2 Qe8 Bf1 Qd8 e8B+ Kf6 b4 a5 g5+ Kg7 f6+ Kf8 f7 Kg7 e3 d5 f5 g2 Kf2 d4 g6 a4 f8B+ Kf6 g7 d3 b6 d2 b7 d1R b5 a3 b6 a2 Ba6 Qe7 c4 Qc5 Kg3 Qd4 Bc6 Rd2 Nh3 Qe4 Bb2+ Kf7 f6 Kg6 f7 Qd3 Nf2 Qc2 Rh5 Qc1 Rc5 Rd4 Nd2 Rh4 Nf1 Rh5 Be7 Rh6 f8B Qc3 Nd1 Rh5 Bd8 Nf6 g8B Nbd7 b8N Ne5 b7 Nf3 Bg7 Qb3 Nd7 Ng1 b8Q Rh2 Nb6 Ng4 Na4 Ra7 Rb1 a1R Bcb7 Qa2 Bbd4 Ra8 Nab2 Ra7 Rc1 Rb1 Rc2 Rc1 Rf2 Rc3 Rf4 Ra8 Bb5 Ra4 B5a6 Rb4 Qc8 Rb5 Qd7 Nh3 Qc6 g1R+ Qg2 Rgh1 Qg1 Rhc2 Qh2 Ng1 Qh3 Rhh2 Bde5 Rc1 Qh4 Rhc2 Qh3 Nf6 Bf7+ Kg5 Bh5 Rf8 Be2 Kg6 Rd4 Ng4 Rf4 Rf5 Bef6 Ra5 Bh8 Raa3 Bfg7 Rg5 Rc6 Rga5 Rc5 Rb5 Qh6+
1k4rR/N2n2n1/bRb1R1pN/P1R2B2/2rnQ1R1/5R1p/5ppP/K3BN2 b - - 0 1 illegal: Other
3qr2q/bB4Np/7k/NQR3N1/K1P3R1/NP1qNrB1/N1p2pp1/5B1b b - - 0 1 illegal: No proof kernel
4n3/2rQKnnN/2N5/1PNN2N1/nB2b1RN/4BP2/rn1b1b2/rB2Rq1k b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 e5+ Kc4 c5 d4 a5 g4 h3 g5 h2 b6 a4 f6 e4 f3 e3 f7 h4 g6 e2 b7 e1B b5 a3 g7 a2 Bg5 h3 Qc2 Nd7 b8N Nh6 g8N Nf6 Qe2 Bf2 Qb2 Ne8 Qe2 Rh7 Na6 Bf5 Qd3 Be4 Ne7 Qa5 Bc1 Qe1 Ng6 Rg7 Be2 Qf1 Nc3 Rh7 Rb1 a1N Rb4 Nb3 Be3 Be7 f8N Nf7 Bd1 Bg5 Bc2 Ra7 Bb1 Bf4 Bc1 Bd2 Nh4 Rg7 Nh7 Rg2 Nge2 Rc7 Rg1 h1N Nf4 h2 Nh3 Ng3 N3g5 h1R Ra4 Bf4 Be3 Nf5 Ra1 Rgh2 Rg3 Nfg7 Rg4 Ke7 d6+ Kd7 Nh3 Ke6 d5+ Ke5 d7 Rg1 d8B Bg5 Bc1 Bd2 d6 Rhg2 N3g5 Rh1 Rg3 Kf4 d7 Rgh2 Rg1 Rg2 Be7 Kg3 d8N Kh2 Nh3 Qe2 Re1 Qf1 Ra4 Rhg1 N3g5 Kh1 Nd5 Ba5 Nc6 Bf5 Bf8 Be3 Na7 Ra2 Bc2 Qg2 Ndb4 Bf2 Kd5 c4 Re2 c3 Nac6 Nc5 Be3 Rga1 Re1+ Qf1 Bb1 c2 Qd4 c1N Qg4 Bg6 Qd7 N1d3 Be7 Nb2 Bd6 Nh8 Be7 Nf6+ Kd6 Bc2 Nd5 Bd2 Rd4 Nca4 Rg4 Be4 Bf8 Nf5+ Ke6 Nf7 Bb4 Ng7+ Ke7 Nfe8 Nc5
2Bn1Rk1/q1NN2Nr/qrr5/2n2N1r/4PR1n/r2PbNR1/1B4QK/3b3N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 Kg2 g5 h4 c5 e4 f5 b4 Kf7 d6 g4 h6 a4 b6 f3+ Kh2 a3 b5 c4 h7 c3 d7 a2 b7 f4 d3 f2 h5 f3 b6 c2 h6 Nf6 Bb2 c1R Nd2 Rc6 Ne2 Qe7 Ng3 Ra3 Bh3 f1R Qe2 f2 Rg1 Rb1 Nf3 f1R Qg2 Qe6 Nh1 Bc5 d8N+ Kf8 Nd2 Rf5 Nf3 Rh5 Rf1 Qe7 Ne6+ Kf7 Rf2 Nfd7 Ng7 Be3 Rf1 Nc5 Rf2 Rf8 h8N+ Kg8 Ng6 Rf7 Ngh4 Be6 Rf1 Bb3 Nhf5 Bd1 Rf2 Qe6 Rf1 Qc4 Rg1 Qa6 h7+ Kf8 Rf1 Re7 h8R+ Kf7 Rh6 Kg8 Rf6 Rd7 Nd6 Rdc7 Rf4 Rf7 Ndf5 Rfc7 Ne8 Rch7 Neg7 Qa7 Bc3 Rb5 Bb2 Rb4 Rc1 a1Q Rc2 Qa2 Rg1 Qc4 Rf2 Qca6 Rff1 Rg6 Rf2 Nc6 b8N Nd8 b7 Rc6 Nd7 Rbb6 b8N Qa5 Na6 Qb5 Nc7 Qba6 Re1 g3+ Kg1 Bc1 Re3 Bd2 Qf1 g2 Kh2 g1N Qg2 Bc1 Nfe5 Bd2 Rg3 Be3 Nf3 Ne2 Rh4 Nf4 Rhg4 Ng6 Rf4 Nh4 Nh6+ Kh8 Ng1 Re6 Rf5 Bc2 Nf8 Q6b7 R2f4 Bd1 Nf3 Rec6 Rf7 Rd5 Bc8 Qba6 Nd7 Rh5 Nhf5 Kg8 Rf8#
R2B4/1qbK3R/q1N2Pq1/1q1n1BNr/N1k1q3/B7/1rP2n1N/NNQb1b2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 h4 a5 b4 e5 f4 g5 f6 Ke6 f7 a4 b6 g4 h6 g3 h5 g2 b5 a3 b7 a2 h7 Qg5 b6 Nf6 h6 Ng4 Nf3 g1Q Bh3 Na6 b8N Nc7 b7 Bd6 Na6 Rb8 Ba3 Qh5 Qc1 e4+ Ke2 e3 Kd3 e2 Nh2 e1Q f5+ Ke5 f8N Qeh4 Nc5 Nf2+ Kd2 d3 Kc3 d2 Nb3 d1B Ne6 d4+ Kc4 Nd5 Kb5 d3 Kc6 d2 Nec5 Qd4 Na4 Bc7 Bg4 Be6 Bh3 Bf7 Kd7 Qgg6 Bg4 Qe4 Bh3 Ra8 b8N Ra7 Bg4 Rb7 Bh3 Qhe2 Bg4 Qb5+ Nc6+ Kf4 Bh3 Ke3 Bg4 Nc3 Bh3 Bc4 Bg4 Bf1 Bh3 Ra8 h8B Ra5 h7 Nd5 Bg7 Rb8 h8N Qb7 f6 Rb5 Nf7 Rh8 Nca5 Rh5 Bgf8 Rb6 Ng5 Rb5 Nd4 Rb2 Ndc6 Qb5 Bfe7 Qb7 Nb4 Kd4 Nb3+ Kc4 Nc6 Qb5 Bf5 Qb7 Nbc3 Qb5 Rb1 a1Q Bd8 Qa2 Ra1 Qb7 Nbd4 Qab3 Nb1 Q3b5 Nb3 Bf3 Ne6 d1Q Ng5 Qdd3 Ra2 B3e2 Na1 Bd1 Ng4 Rh8 Rh7 Q5a6 Nh2 Qdb3 Re7 Rh5 Rh7 Q3b5 Nac3 Qg7+ Bae7 Qab6 Ra8 Q6a6 Na4 Qg6 Ba3
B3bQq1/4Bn1n/1qb1KPk1/1B1N1r1n/1P1B4/3N2nr/1RR1BNB1/2bn4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 c4 e4 b4 d6 g4 h3 g6+ Kg7 c5 h2 c6 d3 f6+ Kh6 b6 d2 g7 a4 c7 e3 g5+ Kg6 b7 a3 f7 e2 Nc3 e1N Bb2 a2 Qf3 d1B Be2 Bf5 c8B Nh6 g8B Bd7 Nh3 Nd3 Rc1 a1Q Rc2 Qb6 Nf2 Be8 Ke6 Qa2+ Nd5 Nd7 b8N Ra5 Na6 Nf6 Bb7 Nh7 Bd4 Rc5 Rg1 h1N Ba8 Ng3 Rg2 Qc4 Rb2 Bda4 Rh2 Be7 f8B Nf7 Rg2 Ra5 Nc5 Bac6 Rh2 Bf6 Be7 Bg7 Rc2 Bh6 Rb2 Nc1 Ncd3 Nh5 Bf1 Ne2 Bg2 Neg3 Rc2 N5f6 f5+ Kg7 g6 Bc1 Ne5 Nfh5 f6+ Kh6 g7 Rc5 Qc3 Qb3 Ned3 Kg6 Qc4 Rb5 Nc3 Rf5 Nd5 Qa2 Rb2 Qaa7 Qc5 Qab8 Rh1 Q8d8 Rd1 Qdb8 Rdd2 Q8d8 Rdc2 Qdb8 Nc7 d5 Ne1 Ne5 Bd8 Nf8+ Kd6 Nf4 Bc3 d4 Bc4 Bf7 g8B Rh3 Bb5 Nh7 Be2 Nfh5 Ke7 Bfe8 Bgc4 Nf7 Nd5 Bed7 Qd6 Rg5 Bb5 d3 Bd4 d2 Ned3 d1N Bc7 Qg8 Bd8 Be8 Ke6 Rf5 Qf8 Qg7 Be7 Qh8 Bd6 Qg8 Be7
b6Q/2B2RN1/1qB5/3rRKbn/PNP1r3/nB1Nq1b1/2Bn1B2/q2k1Bb1 b - - 0 1 illegal: No possible last move, all moves rejected
n3nb2/rkNRQB1n/3PbNR1/B4P2/2R2bq1/1KRR1r1B/3rb1R1/q7 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 a5 d4 h5 Kd2 e5 Kc2 c5 g4 Kc7 f6 h3 d6+ Kb6 g5 c4 g6 e4 f5 a4 f7 a3 g7 h2 d7 h4 d5 a2 d6 c3 Bh3 e3 Qe1 e2 Na3 Qe8 d8R Qe3 Bd2 Na6 Rd1 a1B Kb3 Ra7 Nf3 Qf4 Rg1 h1B Rd7 c2 Ng5 c1R Nh7 Bf3 Nf6 Qg4 Rg2 Rc2 Rc1 Ra2 Rc4 Nc7 Bc3 Kb7 b6 Rc2 b5 Rd2 Ba5 Be5 Rc3 Bf4 Rc4 Be7 f8R Rh7 Re8 Bf8 Re3 Rh6 Rd3 Rh8 Ne8 Nf6 g8B Rh5 Bf7 Rh8 Qd1 e1N Qe2 Rh7 Qe7 Be2 Rcc3 Nf3 Rc4 Ng5 Rdc3 Nh5 Nf6 Ng7 Rd3 Ne8 Rcc3 Kb8 b7 Na8 Rc4 Rg7 Rdc3 Nh7 Rd3 Ra6 Rdc3 Ka7 Rd3 Rb6 b8R+ Rb7 b6+ Ka6 Qe3 Ra7 b7 Rg6 Qe7 Rg5 Rd8 Be6 Rbc8 Rg6 b8R Rh6 Rb5 Rh5 Re5 Rh6 Nd7 Kb7 Nb5 Rh5 Nc7 Rg5 Nf6 Rg8 Rgg3 Rg5 Bf1 h3 Rg2 h2 Rd7 h1Q Re4 Rh5 Ree3 Rh3 Reg3 Qf3 Rg6 Qg4 Rh2 Rf3 Bh3 Qa1 Rg2 Rf2 Nb5+ Ka6 Rc5 Rf3 Nc7+ Kb7 Rd5 Be3 Rdc3 Bf4 Rdd3
3RRK1b/R4nP1/2q2nQ1/1r2N1Nq/bRnP4/2B4B/qR2b2n/rRNk4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 c5 f4 h5 d4 a5 b3 a4 b6 c4 f6 a3 d6 a2 g5 c3 b7 h3 f5 c2 d7 h2 Ke6 h4 Kf7 e5 g6 e4 Qf3 h3 Bb5 e3 Ba6 e2 Na3 e1N Qe4 Kc3 b4 Qb6 d8R Bg7 b5 Nd7 b8R Rh5 Bb2+ Kd2 Ne2 c1N Bc3+ Kd1 Nc4 Bh8 g7 Ne5+ Kf8 Qc6 b6 Bd7 f7 Nf6 b7 Rg5 Rf1 h1B Qg4 Rh5 Qg6 h2 Rb1 a1Q Rb2 Ng8 f6 Ncd3 Nc1 Bf3 Rb4 Ra7 Ra8 h1Q b8R Nb2 Bc8 Qa2 R8b7 Ra4 Raa7 Be2 R7b5 Be8 Bh3 Rf5 Rf2 N1f3 Rbb7 Nh2 Rg2 Neg4 Ne5 Nc4 Rb1 N8h6 R7b4 Bf3 Rgb2 Be2 Ke7 Ra3 f8N Nf7 Nh7 Ra5 Ng5 Rf1 Ra6 Rb5 Ra7 Qhf3 Kf8 Qf5 Ne4 Qh5 Ng5 Nfh6 f7 Nf6 Ke7 Rg1 f8R Nf7 Rg8 Qg2 Rc8 Rb6 Rd8 Ba4 Ra1 Qc6 Rge8 Rb5 Kf8 Rh1 Rd2+ Ke1 Nb3+ Kf2 Rb2 Rc1 Rd2 Ke1 Rc2+ Kd1 Rb2 Rb1 Nc1 Qb3 Raa2 Qa3 Rb3 Ra1 Rb1 Qb3 Rc2 Qa2 Rcb2
2q2Bnn/2r1qR2/2R2bqP/5P2/1NRbBq2/3bR1bR/1B2r1Q1/KNRk4 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 h4 Kd6 f4 a5 d4 c5 Kd2 e5 Kc2 g5 Kb2 c4 h5 a4 h6 g3 f6 g2 f5 a3+ Ka2 c3 b6 e4 b7 e3 f7 c2 b5 g4 b6 g3 Bb5 e2 Bd3 e1Q Nf3 g1Q Rh3 g2 Bb2 c1Q Qd2 Qee7 Ne1 Nd7 b8R Rh7 b7 Ne5 Nc2 Ng6 Be4 Nh8 Nb4 Ra5 Qe2 Qf4 Qf3 Bd7 Rc8 Bb5 b8R Bd3 Rc4 Qc8 Rb7 Bg7 f8B Bf6 Qg4 Bh4 Rbc7 Bg3 Qe2 Ra7 R7c5 Rc7 Rc6+ Kd7 d6 Rf7 Kb3 a2 d5 Rf6 Qd2 Re6 Kc3 Qb6 Qc2 g1B Qg2 Bd4+ Kb3 Ke8 d7+ Kf7 d8R Kf6 d6 Kg5 d7 Kg4 Re8 Qba6 d8R Re5 R6c5 Qg6 Rc6 Re6 Rd7 Re5 Bd5 Re2 Be4 Bf6 Nd2 Bd4 Rac1 a1B Ka2 Bf6 Ba3 Bad4 Bb2 Qf2 Nb1 Kf4 Nd2 Ke3 Ka1 Qf4 Nb1 Qed6 Rf7 Qe7 Na3 Kd2 R1c3 Bc2 Nb1+ Kd1 Re3 Bd3 Rd8 Ba7 Rdd4 Bc5 Rc3 Bb6 Rdc4 Bbd4 Rc1#
1b2R1N1/b2kq3/1PbR4/2brB3/1PrRB1N1/2r1Q2R/R3nn2/BKRqr3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 c5 f4 h5 b4 e5 d4 a5 Kd2 h3 Kc2 h2 d6 h4 d5 h3 b6 c4 g5 e4 g6 e3 g7 e2 d7+ Ke7 Bb2 e1B Bd3 a4 Ra2 a3 Be5 c3 Qc1 Rh5 Nf3 Nf6 g8R Nc6 Nbd2 Nd4+ Kb1 Bb7 Rh8 Bc6 Ne4 Rc8 Qe3 Bg3 Rc1 h1R Nh2 Ne2 Ng4 h2 Rh6 Rg5 Rh3 Re1 Bc2 Qe8 d8R h1Q Rd6 Qd7 Bd3 Ke8 Bc2 Qe7 Bd3 Bd7 Bc2 Rc4 Bd3 Bc6 Bc2 Ng8 f6 Nh6 f5 Bf4 Ng3 Qf1 Nh5 Bh2 Be4 Qg1 Re6 Kd7 d6 Bf4 f7 c2+ Ka1 Bg3 f6 Rf5 Rd1 c1B Kb1 Qh1 Ba1 Rd5 Rd4 Bb2+ Rd1 Bd4 Rc1 Bc5 Be5 Bg7 f8B Bh2 f7 Qf1 Bf4 Be5 Bg7 Bg3 f8R Rc3 Nh2 Ng4 Re8 Nf2 Ng4 Bh2 Ng3 Qg1 Nf5 Qh1 Nfh6 Qf3 Rd2 Bg3 Ng8 a2+ Kb2 a1R Rd4 Ra5 Kb1 Raa3 Rd2 Qh1 Ra2 Rc4 Reh6 Rac3 R6h4 Ke6 d7 Bb8 d8R Ba7 Bfe5 Qf3 Bd4 Bgb8 Bde5 Nd4 Bgf6 Qd1 Rh6 Ne2 Rg6 Rc2 Ba1 R2c3 Rgh6 Rh5 Rd4 Rd5 Be5+ Kd7 Rd6+
2qb2N1/7Q/1rqn1q1b/1r1b2Np/BBBr3R/2B3PR/1BNkP1B1/K5n1 b - - 0 1 illegal: No possible last move
n2R1rNB/Nq2N1n1/qPNK1N2/2n1r2Q/1b1BBkP1/3Nr1p1/b7/2R3b1 b - - 0 1 illegal: No proof kernel
1R3b2/3b1p2/RNQ1nr2/2q1Br1n/R2Rk3/n2R3R/1NP1bP1r/1qB1K2N b - - 0 1 illegal: No possible last move, all moves rejected
N3R1bB/2p1RkB1/q4P2/b3BN2/K1BbP1q1/n2qN2r/2Q2B2/1n1n1Br1 b - - 0 1 illegal: No proof kernel
qNQ1BBK1/p1P3N1/2N2rR1/1N2q3/3b4/1Brb2Nn/2Pn2bq/1kR1n1N1 b - - 0 1 illegal: No possible last move, all moves rejected
2N3bn/2B1K1R1/5N2/nN6/rP4np/bk3bqQ/b2NP1Nr/1BB1N1Rb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 d5+ Kf4 h5 c4 f5 g4 a5 g6 a4 b3 a3 c5 a2 c6 d3 g5 d2 g7 d4 g6 Kd5 b6 d3 e6 Bb7 c7 Nc6 c8N Nh6 g8N Ba3 g7 Ng4 b4 Kc4 e7 Ra4 Kg5 f4 Nf3 Qd6 e8N Nce5 Bg2 Ng6 Qf1 d1B Ne1 d2 Ngf6 f3 g8N f2 Be4 Bb3 Nd5 d1B Nec7 Qg3 Qh3 f1B Nb5 Bg2 Rg1 Bh1 Nf4 Bd5 Bf5 Bdf3 b7 Rh7 b8B Nh8 Nfg2 Bdc2 N1c3 Bb1 Bc7 Rh6 Nf6 Rh7 Bd7 Rh6 Be8 Bh7 Bg6 Bg8 Rb1 a1N Nce4 Ba2 Bh7 Nb3 Kf5 Nf7 Ke6 Nh8+ Ke7 Na5 Rb3 h4 Rd3 Rg6 Rd5 Kb3 Rg5 Rh6 Rg7 Rh5 Nec3 Rd5 Bb1 Rd3 Nce4 Rd1 Nd3 Rf1 Nde1 Rf2 Nf4 Rh2 Nfg2 Bc4 Nc2 Bd5 Nce1 Bg8 Nd2+
1rNR1NBR/5b1q/1r5n/pP4b1/K1n2b1N/1Q1B1N1n/1BP1n3/N1N2k1n b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 g4 d5 b4 a5 f4 e5 g6+ Kf6 b6 h5 b5 e4 b7 e3+ Kd3 h4 g7 e2 Rh2 e1B Nd2 h3 Qf3 Ra6 Nb3 Nh6 g8B Be6 Ne2 Bg3 Bb2 Bf7 Rd1 Be7 Nec1 Qc7 Na1 Nd7 b8N Nb6 Nc6 Nc4 Ne5 Rb6 Rh1 h2 g5+ Kg7 g6 Bg5 Qe3 Kf6 g7 Qd7 Nf3 Qb7 Bh7 Rb8 Bg8 Qe7 Rg1 h1N Rg2 Qc7 Rh2 Ne5+ Kd2 d3 Rh4 Qa7 Kc3 d2 Kb3 d4+ Ka4 Nc4 Qb3 Qd7 Bd3 Qa7 Re1 d1N Re8 Ndf2 Rd8 Nh3 Rh5 Ke7 f6+ Ke6 Rh4 Qd7 f5+ Kd5 Rh5 B3f4 Rh4 Ng4 Rh8 Nh6 Bh7 Kc5 g8N Qc7 Ne7 Qa7 Bf1 d3 Nc8 d2 Bg8 d1N Be2 Qd7 Bd3 Kd5 Bf1 Ke4 Be2 Bh5 Bd3+ Ke3 f7 Kf2 f8N Qh7 f6 Bf7 Ng6 Kg2 Ngh4+ Kf2 Be4 Kf1 Bg6 Ndf2 Bf5 Ng1 Bg6 Ne2 Bd3 Bh5 f7 Nh3 f8N Be8 Ne1 Bf7 Nef3
1b2r3/PBR1r2b/3B4/QK2B2B/1B1Bnrrk/1R2qNrb/2Np1P2/2n1N3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Kc4 g5 h4 d5+ Kb5 e5 c4 g4 a4 b6 a5 e4 a6 b3 h6 b2 c6 e3 c5 d4 h5 Kg5 h7 g3 h6 g2 a7 d3 c7 d2 f6 e2 f7 e1R c6 Bb7 c8N Bd6 f8B Qe8 Ra3 Na6 Rb3 Nc5 Be2 Bb8 Bd6 Qe3 c7 Nd3 Na3 b1R Bh5 Nf6 Ne7 Bc8 Nc2 Rf8 h8B Ne4 h7 Bh3 c8B Kh4 Nd5 Rf4 Bca3 Nc1 Bhe5 Ra1 Bac5 Ra4 h8B Rd4 Ndb4 Re2 Ka6 b5 Nd3 b4 Nde1 Rc4 Bb7 Rd4 Rb1 b3 Kb5 b2 Bb4 Rd3 Bd4 Ra3 Bhe5 Ra4 Ra1 b1B Ra3 Rg4 Rb3 Rg3 Nd3 Re1 Qf3 Rg4 Qf5 Rf4 Ne2 g1R Rh2 Rg3 Ng1 Bc7 Rg2 Re8 Rh2 Re2 Nde1 Bb8 Rg2 Rgg4 Rg3 Ra3 Rc3 Re7 Rc7 Qb3 Bf6+ Ng5 Qd3 Rd7 Na1 Re8 Bfe5 Rde7 Qe3 Bg6 Nac2 Bh7 Qd3 Qc3 Qc4 Ne4 Qa2 Rb3 Rd3 Qb2 Qa5 Qa3 Re3 Rc3 Re2 Rcg3 Re3 Qa1 Ra3 Qc3 Rb3 Qe3 Ngf3+
bR2q3/P1Bn1Bbb/8/3r1pK1/rBb1kPRQ/1R1r2n1/NB4N1/bB2B3 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 Bd6 cxb5 Bf8 b4 axb4 Kd2 Ke7 Ke3 Ke6 Kf4 d5 a4 c5 h4 f5 e4 b3 a5 b2 b6 d4 h6 g6 a6 c4 h5 d3 h7 d2 a7 c3 h6 c2 b7 Be7 Ne2 Bd6 Rg1 Qe8 Qe1 d1B Bd2 c1R Rg4 Bf8 Nbc3 b1B Na2 Bd3 Kg5 Bc4 Bb4 Bdb3 Rb1 Nd7 b8B Rc3 Bc7 Ngf6 f3 Rd3 Qh4 Rg8 h8B Nh5 h7 Bg7 Be1 Bb7 Nf4+ Ke7 e6 Ng3 e5 Rd8 Ng2 Rd5 Bd3 Ba8 Kf4+ g5+ Ke3 Kf8 e7+ Kf7 e6+ Kf6 Rb2 Ne4 Bb1 Ng3 Bca5 Ke5 Bab4 Qf7 e8R Qe7 Rf4 g4 Rf8 Qe8 e7 Rc8 Rd4 Rc6 Rf4 Ra6 Rd4 Ra4 Rf4 Qg6 Rb8 Rd8 e8B Qe6 Bg6 Qe8 Rd4 Nh5 Rf4 g3 Rg4 Rd3+ Ke2 Bg8 Bf7 Bc4 f4+ Ke4 Rb3 Nb6 Kf1 Rd5 Ke2 Ba1 Be5 Nd7 h8B Bh7 Bc7 Bg7 Ne3 g2 Kf2 Ba1 Bb2 g1B+ Kg2 Ng3 Kh3 Bf2 Ng2 Be3 Qf6 Bb6 Kh4 Bd4 Kg5 Be5 Qh6 Bg7 Qh4
qr2q2q/1NRB1b1q/2Rn1q1r/PR1pB1kR/3Q1n2/R1b1NP2/8/3N2KR b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 a4 Kf6 h4 g5 a5 b5 h6 e5 f3 d5 Kf2 e4 c6 g4 h7 b3 h5 b4 h6 b2 c7 b3 c5 Bd6 c6 Be5 Ra3 Bc3 Ne2 g3+ Kg1 e3 Nf4 e2 Bh3 g2 Qd4+ Kg5 f6 Nd7 f7 Nf8 Bd7 Ng6 f8R Rb8 Rf6 N8e7 Rf7 Nf5 Rf6 Rf8 h8R Nd6 h7 Re8 Rhf8 Re6 h8R Qe7 R6f7 Qf6 R8h4 Ne5 Bd2 Nd3 Be1 Qh8 Bg3 Rh6 Bh2 Ba6 c8R Bb5 c7 Ba4 Nd2 b1Q+ Nf1 e1Q Ne2 b2 Be5 Nf4 R4h3 Qbh7 Rh5+ Kg6 Rfe8 b1Q Rfe7 Qb4 Red8 Qh4 Ne3 Q4f6 Rde8 Qb7 Rf8 Bb2 Nc3 Qa8 Ncd1 Bc3 Re6 Nb5 Rb6 Nd6 Rf7 Bc2 Rb5 Bd3 R5h3 Kg5 Re7 Bg6 Re6 Nc4 Rc6 Bf7 Rh5+ Kg6 Rd8 Nd6 c8N Qe8 Nb6 Qeh8 Na4 Qe8 Nc5 Qfh8 R5h4 Kg5 Nb7 Qf6 Rdc8 Qfh8 Kh2 Qf6 R8c7 Qhh8 Kg3 g1Q+ Ng2 Qh2+ Kf2 Rg6 Rh6 Qh3 Nge3 Qhf5 R6h2 Rh6 Kg1 Qfh7 Rh5+
4NR1r/b1PR3R/5nk1/3q2bQ/q3RBN1/RB2bpR1/b3P1r1/N2n1K1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 d5 c4 a5 h4 g5 c5 f5 e6 a4 c6 g4 c7 a3 b6 f4 b7 a2 e7 Kf7 e8N g3 b5 f3 b6 d3 h6 g2 h5 d4 h7 Qg5 h6 Nf6 Rh3 Na6 b8R Bc5 b7 Ba7 Nd2 Nc5 Rg3 Kg6 Nh3 g1B Nb3 Be3 Nf2 Bh3 Rd8 Nce4 b8R Nc3 Rd7 Bg2 Rb4 Bh1 Bh3 d2+ Kf1 d3 Ng4 Qd5 Re4 Rd8 Qc2 Nd1 Qc5 Rg8 h8R Ra8 Rb1 a1B h7 Bad4 Ra1 Bg5 Ra3 Bde3 Na1 Rb8 Nd6 Rg7 Rhe8 Rd8 R8e7 Rh8 Ne8 Qe6 Qd6 Nf2 Kg1 d1B Ne5+ Kh5 Reg4 d2 Kf1 Bb3 Rg2 Bgf4 Ng6 Beb6 Ne5 Ba2 Qd5 Rhg8 h8R+ Bh6 Rh7 Rh8 Rf7 Qc6 Rf8 Qa4 Qa5 Bc5 Re4 d1Q+ Qe1 Rg3 Bf4 Be3 Be6 Rgg8 Bb3 Qd5 Rg4 Nd1 Rg1 Rg3 Ng4 Kg6 Qf2 Bg5 Qh2 Rg2 Qh4 Rh2 Rg3 Rg2 Qh5+
4q2r/Nq3nR1/2B5/k1N1n1RN/N1NK2bb/b3N1bQ/4PpnP/r5BR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 b4 g5 d4 c5 d6 a5 h6 f5 b6 Kc6 b5+ Kb7 d7 c4 d5 f3 Ke3 f2 d6 a4 h7 g4 Qd3 g3 Bg2+ Nc6 Nd2 f1Q Ngf3 a3 Nd4 a2 Nc2 c3 Nc4 Qc7 d8R Rb8 Rd7 Nh6 Rg7 Ra8 d7 f4+ Ke4 f3 Be3 Ra7 Bg1 Bd6 N2e3 Ne5 Kd4 c2 Rg5 c1B d8N+ Kb8 b7 Nhf7 Qc3 Bg4 Ne6 Bca3 Nc5 Ra5 Qb3 Ka7 b8N Qb7 Nbd7 Bb8 Re1 a1N Ndb6 Bc7 Nba4 Nc2+ Kc3 Qf2 Rf1 Ne1 Kd4 Bd8 Rg7 Bh4 Qc3 Rf8 h8N Rc8 Ng6 Rh8 Nf4 Ra6 Bh3 Ng2 Ra1 Qf1 Nh5 Qb1 Qb3 Qg6 Rb1 Qe6 Qd3 Qe8 b6+ Kb8 Rb5 Kc8 Nb3 Kd7 Rd5+ Kc6 Nbc5 Kb5 Qh7 Ng6 Rg5 Nge5 Nd6+ Ka5 Qh6 Qc7 b7 Ra7 b8N Qb7 Qh7 Ne1 Qe4 g2 Qb1 Bc1 Qa1 Kb4 Nb6 Ra2 Qb1+ Ka5 Nba4 Ba3 Qc1 Ra1 Ndc4+ Kb4 Nc6+ Kb5 Bf2 g1B Na7+ Kb4 Nd6 Ka5 Bg2 N1d3 Qf1 Nf4 Bg3 Bf2 Nc4+ Kb4 Ncb2 Be1 Bf2 Ka5 Bg1 Beg3 Nbc4+ Kb4 Ncb6 f2 Bc6 Ka5 Qh3 Ng2 Nbc4+
B2B1q2/2Qq2q1/3b1B2/Nprn3P/1b3k2/2NKN1P1/N1rR1qbR/1n1N1N2 b - - 0 1 illegal: No possible last move
5QRk/1qr1rR2/bB1bB1RP/nBR2R1N/7K/2b3P1/1q1p1nb1/2N2Rr1 b - - 0 1 illegal: No possible last move, all moves rejected
3n1rr1/bN1nq3/qB1Pr2k/nB3pQB/BNR3R1/5b2/1n3P1K/BN4B1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 c4 a5 h4 e5 d4 g5 h6 g4 h7 a4 b6 a3 b7 e3 c6 f6 h5 Kf7 h6 Kg6 c7 e2 d5 a2 c5 g3 c6 e4 Nf3 g2 Qd4 g1R Rh4 Qe8 Rg4+ Kh5 Ne5 Ra3 Be3 Qd7 Nd3 Qe7 Nb4 Bd7 c8B Ra7 c7 Nc6 b8B Ra6 Bb7 f5 c8B Na5 Bh2 Bc6 Bd7 Nf6 Qc4 Bg7 Bb6 Rf8 h8N Rg2 h7 Kh6 Be8 Nd7 Bh5 Bd4 Bg1 Be3 Bc8 Nb7 Qd4 Nd8 Qc4 Ba8 Bb7 Qe6 Bc6 Qd6 Ba4 Qc6 Bc7 Ba7 Bb6 Qe6 Qd4 Qg6 Qf6 Rg3 Qh4 Qc6 Kd2 e1N Bfb5 e3+ Ke2 Nd3 Kf1 Nb2 Rc4 Rgg8 Nf7+ Kg7 Kg2 e2 Kg3 e1Q Kh2 Qe7 Nd6 Kh6 Nb7 Qce6 h8B Qe2 Ba5 Re6 d6 Qf1 Bb6 Qe2 Na5 Bf3 Nb7 Qf1 Nd2 Qd3 Rf1 a1N Nb1 Nb3 Bc3 Nd1 Ba1 Nb2 Rfc1 Na5 Rg4 Qe4 Rc4 Qc6 Bc5 Qa6 Bd4 Nd1 Bb6 Nb2 Qg5+
8/NnR2n2/bbP2BbB/1rQ3Nn/1P1B2BK/r1q5/B1Rpb1kN/5Bq1 b - - 0 1 illegal: No possible last move
1rNB1Nk1/2Q2Pbr/5nNP/3RR3/p3brRn/1B2q3/N2N3K/nNqn4 b - - 0 1 illegal: No possible last move, all moves rejected
1Nk2B2/2PQ1B2/1p1rNqRP/1nbB4/n2B2b1/n1B2BR1/2b2b1K/1rN2q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 e5 h4 d5 f4 Kd7 Kf2 g5 Kg3 b6 a4 d4 c6+ Kc7 h6 d3 h5 b3 f6 d2 h7 g4 f7 b2 a5 e4 h6 e3 f5 e2 c5 e1N a6 Nd7 f6 Bg7 f8N Nd3 a7 Rb8 a8B Qe7 f7 Qd8 Be2 N3e5 Bf3 Qf6 Rh3 Ne7 Kh2 Nc4 Rg3 Na3 Nh3 Nf5 Nf4 Nd4 Nc3 b1Q Na2 Ndb5 Bb2 Rg8 h8B Rb7 Qa4 d1B Nc1 Bc2 Bc3 Kb8 N4e6 Rc7 Nh7 Rd8 f8B Ra7 Qd4 Ra4 Qd3 Rb4 Ra2 Qa1 Qf5 Rb1 c7+ Ka7 c6 Nc5 Qd3 Na4 Qd7 Ka6 Bd5 Qf1 Rb2 Bd4 Nf6 Bc5 Rb4 Ka7 Rf4 Qb2 Rf5 Bf2 Rg5 Qa1 Rg6 Bc5 Qe8 Rd6 Nd7 Bf2 Nb8 Bd7 Ba5 Qf6 c8B Bc5 c7 Bf2 Rg1 Bc5 Bc3 g3+ Kh1 g2+ Kh2 Bf2 Bcb7 Bc5 Bb3 Bf2 Bf3 Bc8 Bad5 Bd7 Nc6+ Kb7 Qe7 Kc8 Nb8 Qf5 Bhd4 Qf6 Nf4 Bdf5 Bf7 Bh3 Ne6 Bg4 Bbd5 Qd3 Rd1 Qf1 Rd3 g1B+ Kh1 Qd1 Bc5 Na7 Be2 N7b5 Rg3 Be3 Bef3 Bgf2+ Kh2 Qe2 B5d4 Qd1 Be5 Bc5 Bed4 Qf1 Qd7+
R4R2/3Br3/1BRqB2k/Nn2n2N/2b1Pn2/1p1R1QRb/1P4qb/1K2b1Rb b - - 0 1 legal: proof: f4 d5 h4 b5 c4 a5 cxd5 e5 a4 exf4 Rh2 g5 hxg5 b4 Rh1 Ra6 Rh5 Rb6 Rh1 Rb5 axb5 Bc5 Ra2 Be7 Ra1 Bf8 d4 h5 Kd2 f5 Kc2 Kf7 g4 Kg6 e4 c5 b6 c4 d6 a4 d7 f3 b7 f2 d5 f4 d6 f3 Qd5 h4 Be3 a3 Bd3 f1B Nh3 c3 Bb5 f2 Qd3 a2 Nd2 Nf6 Bb6 Nc6 b8R Nd5 Rc1 a1N+ Kb1 b3 Nc4 Ne5 Ra8 Nf4 Rg1 Rh7 Qf3 Nc2 Na5 Nd4 Ba4 Qe7 d8R Nb5 d7 Bc4 Rg3 Bg7 Rf8 f1Q d8R Qg2 Rd3 Qd6 Rg1 Bd7 Rfc8 Bh8 Rc6 Re7 Rf8 Kh7 g6+ Kh6 g7 Bde6 g8B c2+ Ka1 c1B Kb1 Bf5 Be6 Bd2 Ra8 Be1 g5+ Kg7 g6 Kh6 g7 Bg4 Ng5 h3 g8R h2 Rgf8 h1B Nh7 Bh3 Nf6 Bg7 Nh5 Bf6 Rgg8 Bfh4 Rg4 Bhg3 Rg5 Bh2 Rg3 Bd5 Rcc3 Bc4 Rc2 Na7 Bad7 Nb5 Rcc3 Bd5 Rc7 Bc4 Rc6
2bR3N/6K1/kqB3bR/p1Qbn3/R2b4/Pq1r1bBR/1NPB4/2n1RqR1 b - - 0 1 legal: proof: g4 b5 h4 g5 b4 a5 d4 c5 bxc5 f5 Bd2 e5 dxe5 Ra6 Bc1 Rg6 Qd2 fxg4 Qd1 g3 Bh3 g4 Bf1 Rg5 hxg5 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 h5 Kc3 d5 Kd4 Kd7 f4 Kc6 e4 Kb7 f5 b4 c6+ Ka7 g6 b3 f6 b2 f7 h4 c7 h3 e6 g2 Ke5 h2 e7 d4 e8R g3 g7 d3 Nd2 b1B Nc4 d2 Qh5 d1B Nb2 Bf3 Re6 Qd2 Rh6 Qd7 Nh3 g1Q Bb5 g2 Nf4 Na6 Bc6 Bc5 f8B Ne7 Kf6 Qd3 g8R Qb3 e5 Ng6 e6 Nb4 e7 Ne5 e8R Bd4 Ng6 Nbd3 Bd6 Qf1 Kg7 g1Q Bd2 Ka6 a3 Be4 Rd8 Ba2 Re1 Nc1 Qg5 Bef5 Rh3 Rh6 Nh8 Bg6 Qe3 Rh4 Qc3 Rf4 Qc5 Rf3 Rh6 Rd3 Rh3 Bd7 c8R Qe3 Rb8 Bc8 Rb4 Qef2 Rg1 h1B Ra4 Bf3 Rgf8 Qe3 Rf5 Qb6 Rfh5 Bad5 R5h4 Qg5 Rh6 Qe7+ Nf7 Qe6 Nh8 Qb3 Be7 Qd6 Bh4 Qdb8 Bf2 Q8b6 Bg3
5bR1/r2B1r2/r3pr1P/4B2k/q2bBq1B/2Q3B1/b1r1PN2/RRN1K1nB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e6 axb5 Ke7 f5 Kd6 f6 Nc6 Kf2 Kc5 Ke1 Nce7 fxe7 Kd6 e8B Ke7 h4 Kf6 b4 g5 c4 d5 b6 a5 h6 Kg6 b5 g4 b7 g3 b8R d3 c5 a4 c6 d4 b6 g2 b7 d2+ Kf2 a3 h7 a2 c7 d3 Na3 Kh5 Bd7 f5 Ba4 f4 Nb5 f3 Rh2 Qf6 Rh1 Ra7 Nd4 Nh6 Qe1 d1R Bb5 d2 Nb3 Nf5 Bc6 Nd4 Be4 Qf4 Nh3 g1R Ba3 Rg7 Nc1 Rf7 Bg2 Ra6 Rb1 a1B Be7 Rg8 h8B Rgg7 Kf1 f2 Ra8 Bc3 b8B Bb7 c8B Bd5 Bd7 Ba2 Bc7 Rh7 Bhe5 Nf3 Rg1 Rhg7 Bh1 Bd4 Bcd6 Rh7 Rg8 Ng1 Bb8 Qh6 Bg3 Qf4 Be5 Rf6 Ra1 Rg7 Rb8 Rgf7 Rbb1 Rh7 Nb3 Rc1 Bd8 Rc5 Nc1 d1Q Be7 Qa4 Qc3 Rb5 Bd8 Rb2 Be7 Rc2 Bd8 Kh6 h5 Rff7 Bdh4 Rf6 Kg2 f1R Nf2 Rhf7 Nfd3 Rf3 Nf2 Rd3 Kf1 Re3 Bh2 Rg3 Ke1 Rgg7 B4g3 Kg5 h6 Kh5 Bh4 Rh7 B2g3 Rhg7 Bdc6 Rfa7 Bb5 Rgf7 Bd7
Br2b3/p1B1B3/N5qB/bRn1PNN1/q3b1rk/P7/R2r2Qq/2KBq1B1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 e5 b4 Nd7 bxc5 dxe4 Qe2 e3 Qf3 e4 Qd1 Ne5 fxe5 Qd4 Qg4 Qd3 Qd1 Qd8 c4 Ke7 d4 g5 h4 f5 h6 b5 c6 b4 c5 b3 c7 e2 Kd2 e1R h7 f4 h5 f3 a3 f2 h6 g4 d5 g3 c6 g2 d6+ Ke6 d7 Kf5 Qe2 Kg5 Nh3+ Kh4 Nc3 g1Q Ra2 b2 Bg2 f1B Ng5+ Qh2 Na4 b1Q Nc5 Ne7 Na6 Bb7 c8B Rb8 c7 Qe8 d8B Qf7 Bg4 Qc4 c8N Nc6 Ne7 Qa4 Bc7 Rg8 h8B Nb4 h7 Nd3 Bf6 Nc5 h8B Rg6 Qf3 Bb5 Bhg7 Be8 Bh6 Rf1 Qe2 Rf2 Bb2 Qd3+ Kc1 e3 Bd4 Be4 Qf1 Rfb2 Bd1 e2 Bg1 e1Q Bf3 Rd2 Qg2 Bf5 Ba8 Be4 Nc6 Be7 Nd4 Bd8 Be7 Qdg3 Bf2 Rg7 Rf1 Rg8 Bg1 Qg4 Rf6 Qf5 Rb6 Qg6 Rb5 Rg7 Bcd6 Ba5 Bc7 Qf6 Nh3 Rg4 Ng5 Qg6 Nf5+
2R2B2/b3Nr2/3BP2r/2Np1n2/3PRrBB/3r1n1K/3BrR1n/Qrkq3B b - - 0 1 legal: proof: h4 g5 hxg5 e5 f4 exf4 c4 b5 b4 d6 a4 Be6 a5 Bc8 a6 Bb7 axb7 Be7 cxb5 Bf6 b6 Be7 b5 Bf8 Kf2 Kd7 g4 Ke6 Kg2 Kd5 e4+ Kd4 d3 h5 e5 a5 e6 c5 g6 f5 g5 f3+ Kh2 f4 g7 a4 g6 f2 Qb3 a3 Qc2 f3 Nd2 Ke3 Be2 f1N+ Kh3 a2 Qd1 c4 Rh2 h4 Rf2 Nd7 b8B c3 b7 c2 b6 Ne7 g8B Ra4 g7 Rf4 Bh7 Ne5 g8R Nh2 Be4 Nf5 Bc7 Bg7 b8B Rh6 b7 Qd7 Rb1 a1R Bd8 Ra3 Rb4 d5 Rc4 Qa4 Bd6 Ra2 Bca3 c1R b8B Rc3 Qa1 Qd1 Nb3 Bf6 Nc5 Kd2 Rg4 Be7 d4 Rd3 Rc3 Rc2 Ba5 Bd8 Bf8 Bb6 Bbd6 Ba7 B3b4 Rb2 Bd8 Rc2 Rfg2 f2+ Nf3+ Ke3 Bba5 f1R Rf2 Ra2 Ne1 Rb2 Ng2+ Kd2+ Ne3 Rb1 Bh1 Nef3 Nc2 Re1 Nb4 Rh7 Nc6 Rf7 Rb3+ Kc1 Rb8 Qc2 Bd1 Re2 Rc8 Qd2 Ne7 Qe1 Bb3 Qd2 Bc4 Qd1 Bd2+ Kc2 Rf1 Re5 Rg2 Rde3 Rgf2 Ng5+ Kg2 Ng4 Be2 Rd3 Ng6 Ree3 Re1 h3+ Kg1 Re5 Be4 h2+ Kg2 h1R Bf6 Rh6 Ne7 Nh2 Bg4 Ngf3 Bh4 Ng5 Bc3+ Kc1 Bef3 Ne4 Kh3 Nd2 Re3 Ree4 Bh1 Ndf3 Re1 Re2 Bb4 Rb2 Re4 Re2 Bd2+
R1Q1kNRB/1n3b1P/K3n3/R5Rr/2n1bpBb/3RqN2/B1pr2P1/R3r3 b - - 0 1 illegal: No possible last move, all moves rejected
1Bb1r3/4B1P1/2qp2pk/Rnn4n/RK3bB1/1B2NrbQ/R3Br1P/B2N4 b - - 0 1 illegal: No proof kernel
1r2R3/K1Nk4/1n1b4/2B2BRq/nBpB1Bn1/r1P3Nq/1PQb1p2/2R3Bb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 a4 Bg4 axb5 Bc8 e4 e5 fxe5 dxe4 Kf2 f5 Ke3 a5 h4 c5 d4 g5 h6 a4 c3 a3 h5 c4 b6 g4 e6 a2 h7 g3 h6 g2 d5 f4+ Kd4 f3 d6 f2 Kc5 e3 b7 e2 e7 e1Q d7+ Kf7 Na3 Ke6 Nb5 Ra6 Bf4 Rd6 Rh5 Qe2 Rg5 Qh5 Bd3 Ra6 Ne2 g1B Qc2 Bh2 Rc1 a1N Ng3 Ra3 Bg6 Qa5 d8B Qh3 Be4 Bg7 e8R+ Kd7 Be7 Nf6 Bed6 Rg8 h8B Ng4 h7 Bh6 Bd4 Rf8 h8B Nb3+ Kd5 Rg8 Bb4 Nc5 Nc7 Na4+ Bdc5 Rf8 Kd4 Qb5 Bcd6 Qf5 Bdc5 Qg6 Bhe5 Qgh5 Bh7 Kc6 Bf6 Nd7 b8B Bb7 Bf5 Rh8 Ke4 Ndb6 Bfd4 Ne3 Ke5 Ng4+ Ke6 Rf8 Ke7 Ba8 Kd8 Qg6 Bfe3 Bg1 Nh5 Nd5 Kc8 Rf6 Na6 Bh2 Bc7 Re6 Kb8 Kd7 Ka7 Qh7 Rg6 Qf7 Rc8 Ndb6 Rgg8 B6f4 Rg5 Bh1 Bd2 Be3 Bg3 Bf4 Nc7 Bd6 Bge5 Bf4 Rcg8 Be3 Bh2 Qg6 Ng3 Qgh5 Bg1 Bef4 Bg6 Re8 B2e3 Rb8 Re8 Bf3 Be5 Bc6 B3d4 Bd2 Bf4 Bh1 Bf5+
R2QrrnR/1q2B1q1/n5N1/2pb1BB1/1B2B1kp/5bP1/1NP2K1B/r2q3N b - - 0 1 illegal: No possible last move, all moves rejected
2nRB3/2KnqQ1B/2bPbRp1/2Rrrn2/3k4/1PB4p/BbBqBN2/1N6 b - - 0 1 illegal: No proof kernel
1nKNRQrR/6r1/2PNB2b/5R1q/NN4p1/1bqr1pN1/P2n4/2B1Nq1k b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 f5 h4 b5 c4 d5 e4 d4 h6 b3 h7 d3 c6 b4 c7 b2 c5 d2 h5 g6 c6 b3 h6 Ba3 Nf3 Bd6 Bh3 Be7 Rf1 Na6 Ne1 Bc5 Qf3 d1R Nc3 b1Q Na4 Bd7 c8N b2 Ncb6 Bf8 Nd5 Nf6 Nb4 Rg8 h8R Rd3 h7 Qc2 Bg4 b1Q Bh3 Ke7 e6 Kd6 e7 Rg7 e8N+ Ke6 e5 Nb8 Qf2 Qc3 Nd6 Qe8 Ne4 Bc8 Ng3 Ne4 Qc5 Nd2 Rf3 Ba6 Bg4 Bc4 Re3 Kf7 e6+ Kf6 e7 Bb3 Rf3 Qf7 e8N+ Ke6 Nd6 Qe8 Nd5 Qf7 Kg5 Ke5 Nb4+ Qd5 Qf2 f4 Be6 Qdc5 Kg4 g5 Re3+ Kd4 Qf3 Qa5 Re5 Qac5 Kf5 g4 Qf1 Qd5 Kf6 Qh1 Rf5 Qh5 Qf3 Rg6+ Kf7 Bh6 Ke7 Rg8 Qf1 Rg7+ Kd8 Ke3 Kc8 f3 Qh3 Kf2 Qh4 Kg1 Qf6 Re3 Qf8 Qbd3 Rb1 Qf1 Rb2 Nb1 Re2 Nd2 Bd7 Rg8 Nb2 Qc4 Na4 Rc3 Re8 Ra7 Be6 Rg5 Rg8 Rd3 h8N Qc3 Nhf7 Kh2 Nge4 Kh1 Rh8 Rg8 Nd8 Rag7 Ng3+
6kb/N4q1n/1KPBr3/3BQB2/P4rb1/1n1pR1b1/qNR1N1Bp/3Bq2B b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 c5 hxg5 Nc6 dxc5 Nb8 Kd2 Kf7 Ke3 h5 Kd4 b5 f4 d5 g4 e6 c4 b4 a4 h4 a6 b3 f5 b2 a7 e3 f6 h3 g6+ Ke8 g5 e2 g7 Kf7 g6+ Ke8 c6 e1Q f7+ Ke7 Kc5 d4 c7 e5 Qe2 e4 Bg2 d3 Rh2 e3 Na3 b1Q Nb5 Bg4 c8B Qda5 Ba3 Qbd1 Bf5 Qac3 Kb6+ Kf6 Bd6 Qdd2 c5 Rh6 Rc1 Qb4 Rc2 Na6 Rh1 Be7 f8N Qc4 Rh2 Re8 a8B Qf7 Na7 Rh4 Rh1 h2 Nd7+ Kg5 Baf3 Kh6 c6 Nf6 g8B Kg7 Ne5 Nc5 Nc4 Nh7 Nb2 Bf6 Bd5 Re6 Bde4 Kh6 g7 Nb3 Bd5 Qed1 Qe1 e2 Qg3 e1B Ne2 Q1c1 Qe5 Bg3 Re1 Qb1 Bh1 Qa2 Bdg2 Qc3 Nd4 Qd2 Re3 Qe1 Ne2 Bh5 Qd5 Rf4 Qa5 Bg4 Qe5 Qf8 Bf7 Qg8 Bh5 Qf7 g8B Bh8 Bd5 Qf6 Bgf7 Kg7 B7g6 Kg8 Bfe4 Qd2 Beg2 Qe1 Bf5 Qf7 Nd4 Bh3 Bd1 Bg4 Ne2
1K6/2RBR2N/bnp2Q2/rB1pPrP1/5BB1/q4B1n/r2b1N1k/BR1q2n1 b - - 0 1 illegal: No proof kernel
6B1/2QRR1RP/R1R1P3/1q4r1/Nnp3bq/2N1Kn1p/qr1B1n2/2bB1k1R b - - 0 1 illegal: No proof kernel
1B2N1K1/1q4P1/1n2RQRb/1N6/3Bb1Bk/P1npBBpq/r5r1/nB3Rb1 b - - 0 1 illegal: No proof kernel
1B1r3B/3pnK2/q1P2N1r/kR3n2/B1R2NBr/2q1p1Pb/B6b/2NQB1b1 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Ke2 e5 Ke3 h5 f4 a5 c4 h4 b4 h3 g3 h2 b6 a4 b7 a3 g6 a2 c6 Qf6 c5 Kd8 c7+ Ke7 g7 Na6 b8B Rh6 c6 Rh5 b5 Rg5 b6 Nc5 b7 Ra4 f5 Rg4 Bh3 Rg5 Bg4 Ne6 Nh3 Nd4 Nd2 Kd6 Nb3 Ne7 Rb1 a1Q g8B Rb4 Bf7 Rg8 Nf4 Qa6 Bd2 Bh6 Be6 Rd8 Nc1 Kc5 Ba2 Kb5 Be1 Ka5 Ba7 Bg7 b8B Bb7 Rg1 h1R c8B Rh6 Rh1 Bh8 Rh4 Qg7 f6 Ndf5+ Kf2 e3+ Kf3 e2 f7 Qf6 f8N Bg7 Nh7 e4+ Kg2 Qa1 Kh3 Bd4 Nf6 Bg1 Bd4 Qc3 Bde5 Rc4 Rb4 e3 Rh5 Rd4 Rc4 Re4 Bd4 Bh2 Bde5 Nd4 Kh4 Ndf5+ Kg5 Rd4 Bd2 Re4 Bd4 e1B Bde5 Bf2 Be1 Qb6 Bd4 Ba6 Bde5 Bb5 Ba6 Bfg1 Bd4 Ba4 Bb5 Bc2 Ba4 Qa6 Bde5 Bd3 Bd4 Bf1 Bde5 Bh3 Bd4 Ng8 Bde5 Rh8 Kg6 Nge7+ Kf7 Rd4 Rg5 Rd6 N6d5 Rh4 Bh8 Rdh6 Rh5 Nd4 Re5 Ndf5 Nf6+ Qb5 Ree4 Qb6 Rb4 Qb5 Rec4 Qa6 Rb5+
R6N/1PK3pb/NRB3P1/2b3rq/1n1k4/2rR1B1q/1pqRQ1nn/B2R3R b - - 0 1 illegal: No possible last move, all moves rejected
Nqn1R2B/1pB4q/n2bp2B/1N3k1Q/q1RrR2K/1P1B2B1/1b2r2P/1n3B2 b - - 0 1 illegal: No proof kernel
3B2BR/bn2rQ2/2K3p1/1R2r3/kN2NPrn/1p2P3/rrR2R1R/q1RN1b2 b - - 0 1 illegal: No proof kernel
3kN3/2N1b3/R2rp2b/1RKR2rr/R2R1P2/nR1pB1n1/1Qb1bP2/qN3B2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 b5 axb5 f5 e3 f4 exf4 Qc7 Qd3 Qb6 Qd1 Qd8 Kd2 g5 Kd3 d5 c4 a5 h4 g4 b4 a4 b6 a3 b5 e6 h6 g3 h5 g2 h7 a2 b7 Ra4 h6 Ra8 c5 Qa5 b6 Qa7 c6 Kd8 c7+ Ke7 Ne2 g1R Qc2 Nd7 b8R Rg5 b7 Ngf6 Rh5 Nb6 Be3 Nc4 Qb2 Na3 Nec3 Ne4 Nb5 Bd7 c8N+ Kd8 Nc7 Be7 Nd6+ Bc8 Ncb5 Ng3 Ne8 Qa5 Nbc7 Ra6 Ra8 Rd6 b8R Qa7 Rb3 Qa6+ Kd2 d3 Kc3 d4+ Kb4 d2 Rb8 d1B Rb5 d3 Rd5 Bb7 Kc5 Rg6 Rd4 Bbf3 Rhd5 Bfe2 Ra4 Bc2 Rdd4 Rhg8 h8R Rg5+ Rd5 R8g7 h7 Rh5 Rf8 Qa8 h8R Rgg5 Rff5 Qa6 Rdd4 Qa8 Rf8 Qh1 Rfd5 Qg1 Rff5 Qh1 Nd2 Qg1 Rc1 a1B Nb1 Qh1 Qa2 Bc3 Qb2 Qg1 Ra6 Qh1 Rda4 Bg7 Rdd4 Bh6 Rfd5 Bcd1 Rcc4 Bc2 Rcb4 Qg1 Rb5 Qh1 Bh3 Qe1 Bf1 Qc1 Nd2 Qa1 Nb1
1RRqN1K1/5PR1/N6r/1rNQ4/3bb2n/bPBRpB2/nn1p1R2/2k1b1R1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 h4 Ke4 f4 g5 b6 a5 b7 e5 b3 a4 h6 d6 h5 g4 h7 g3 h6 a3 f6 g2 f5 d3 f7 d2 f6 Ke3 Kd5 e4 c4 a2 c5 Qb6 c6 Bg7 f8R Ra6 c7 Bg4 c8R Qd8 Rh3+ Bf3 Ke6 d5+ Kf7 d4 Bb2 d3 Na3 Rc6 Ne2 g1B Nc3 Rc5 Na4 Rb5 Nc5 Na6 b8N Bf2 Be2 Ne7 Bc3 Nb4 Nba6 Ng6 Rb1 a1B Nc4+ Kf4 Qh1 d1N Nd6 Ke3 Ne8 Nb2 Rg1 Be1 Rg8 Bf8 Rg7 d2 Rh2 Nh4 Rf2 Bg2 Bf3 Na2 Rb8 Nf5 Qh5 Nh4 Qd5 Bd6 Nd7 Ba3 Ndc5 Rg8 h8R Bh1 R7g4 Rg6 h7 Rh6 Rg7 Bg2 Rf8 Bh1 h8R Bg2 Bh5 Bh1 Rf3+ Ke2 Kg8 Kd1 Rd3+ Kc1 Bf3 e3 f7 Rd6 Rh5 Rh6 Rf5 Bg2 Bg4 Be4 Rf2 Na4 Bf3 B1b2 Ba5 Bd4 Bc3 Nb2 Nd6 Qd7 Rfc8 Qd8+ Ne8
2nNN2r/b1p1q1Qn/1P1N1B1n/4N1RN/Rnr5/1B1R4/Np1Pbr2/4K2k b - - 0 1 illegal: No proof kernel
1Nn1q1RN/2R1bb1K/5Q2/p1Br2qB/qBrp4/2q2Rn1/k1P3PB/4B1B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 h5 Ke4 a5 f4 e5 b4 d6 f6 Ke6 f5+ Kf7 g6+ Ke8 b6 Kd7 f7 Kc6 f6 d3 b5+ Kc5 b7 Kb4 g7 h4 b6 d2 Nf3 h3 Be2 h2 Nc3 Nd7 Kf5 d5 Kg6 e4 b8B e3 b7 d4 Ne5 Qc7 Na2+ Ka4 Qf1 d1Q Bh5 e2 Bd2 Ka3 Be1 Nh6 g8R Be7 f8B Nb6 f7 Be6 Qf6 Qd2 Nb4+ Ba2 Rd1 Qcc3 Nbc6 Nc8 Rb1 Ra6 Rf1 h1Q Rf3 Nf5 Bc7 Qde3 b8B Ng3 Rb7 Bd5 Bd6+ Ka2 Rc7 Ra7 Kg7 Qg5+ Ng6 Rb7 Bf4 Rb4 Be3 Rc4 Bg1 Be6 Ba7 Qh3 Bc5 Qa3 Nb8 Qa4 Bg4 Rh4 Bh5 Rf4 Bcb4 Rf5 Kh7 Rb5 Bg7 Rd5 f8B Bf7 Nh8 Qhd7 Bh6 Qe8 Bh2 Qe5 Be3 Qg5 Bec3 e1Q Beg1 Qee3 Be1 Qeb3 Bc5 Qc3 Bb4 Bd8 Bfd6 Be7 Bdc5
Q1R3bR/q1b2PPr/1N5r/1np1Nb2/p1B3RN/B6N/Nqkn4/1N2Kb2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 f4 Kd6 g4 h5 d4 c5 g5 e5 f6 a5 f5 h3 g6 h4 g7 h2 f7 a4 f6 e4 b6 e3 b7 h3 b5 e2 b6 Nh6 Ba3 Nc6 b8N Rh7 b7 Qb6 Nd7 Nf5 b8R Qb2 Nb6 Na5 Ra2 Be6 Rc8 Nb3 Qc2 Rb8 Qe4 Nd2 Ra1 Be7 f8N Bg8 f7 Bd8 Ng6 Bc7 Nh4 Ra8 Ra2 Ra6 Qf3 Ne7 Qg2 Nc6 Qf3 Na7 Qg2 Ke7 d6+ Kf6 d7 Nb5 d5 Ke5 d8N Kd4 d6 Kd3 d7 Kc2 Qd5 Bb8 Nc6 Bc7 Na8 Rb6 Ne5 Rbh6 d8N Na7 Ngf3 Nb5 Rg1 h1B Ndc6 h2 Ng5 Bg2 Nb6 h1B Nh3 Be4 Rg4 Bf5 Ra1 Bg2 Nb4+ Kc1 Na2+ Kc2 Qc6 Bh1 Kf2 Bg2 Qa8 e1Q+ Kg1 Qec1 Kf2 Qd1 Bc4 Qf3+ Ke1 Bf1 Nbc3 Qb7 Rd1 Ne4 Nb1 Qa7 Rdd8 Nd2 Rg1 Rc6 Rd6 Rh5 Rh6 Rf6 Rh8 Rh7 Rg3 Rfh6 Rg4
4B2r/1N2PRbQ/1qnb1Pp1/Nn1bN3/3R1Bp1/r2bq3/1BB2B1B/1K2k3 b - - 0 1 illegal: No proof kernel
q1q3r1/N3P1B1/3pP1K1/nB3Qn1/1RRB1bB1/r2Bqb2/1p4qk/1RB1N3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Ke3 Ke6 Kf4 b5 c4 f5 h4 d6 a4 b3 e4 b4 a5 g6 c6 b2 c5 b3 c7 Rh7 c6 Bb7 c8B+ Rd7 a6 Ne7 Kg5 f4 a7 f3 h6 f2 h7 Bg7 h8B Na6 h5 Nc5 Bd3 f1Q Na3 b1Q c7 b2 h6 Qc2 Rh4 Qfg2+ Rg4 Qe8 h7 Nc6 Qf1 Na5 Nf3 Qc3 Ne1 Bh6+ Kh4 Bd5 Nb5 Bf4 Bg7 Qh8 Qf2 g5+ Kh5 Qc4 Rh4 g4 Rb1 g3 Kg6 Qa4 Ba6 Qc8 h8B Rd8 Qf3 Rf8 Qh5 Rg8 Qf5+ Ke7 Rg4 Ne6 Rh4 Ng5 e6 Qa3 e5 Bf3 Rg4 Qg1 Rh4 g2 Rg4 Qe3 Rh4 Rb8 a8B g1Q Na7 Rb3 Bab5 Qg2 Bac6 Qa4 Bd7 Ra3 Rg4 Qae4 Rh4 Qeb7 Rg4 Qca8 c8R Qa6 Rc4 Q6c8 Rh4 Qd8 Rb4 Nc6 Be8 Bg3 Rhc4 Qdc8 Kh6 Qed2 Bh5 Na5 Bg4 Qe3 Bf6+ Kf8 e7+ Kf7 Qf4 Bh2 Bh5+ Ke6 Bhg7 Kd5 e6 Bg3 Bf1 Bh2 Bd4 Bg3 Qf6 Ke4 Qg6+ Kf4 Bg4 Bh2 Bd3 Kg3 Bh5 Kh3 Qh7 Be5 Bg4+ Kh2 Qf5 Bf4 Kg6
1R1b2N1/1BkP4/p1qBBP2/4B1Qn/Rb5R/1B2B1q1/3nNpr1/Kb2br2 b - - 0 1 illegal: No possible last move, all moves rejected
3q4/P4B2/1n1bn3/1BN1B3/r3Np1p/k1Q1BNq1/1bK1BPbR/2BR2br b - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 h4 g5 hxg5 Kd7 cxb5 Ke8 b4 axb4 a4 Kd7 d4 Kd6 Kd2 c5 g4 e5 a5 h5 g6 f5 g7 c4 g5 e4 a6 c3+ Kc2 e3 g6 e2 b6 e1B b7 Ne7 g8B Bd2 g7 Bf4 Rh2 Ng6 Bb5 Nd7 Nf3 Nb6 Bf7 Bd7 b8N Bc6 g8B Bb7 Nbd2 b3+ Kd3 b2 Nd7 b1Q+ Qc2 Qa2 Nc5 Qb3 Qb2 c2+ Qc3 Bg3 Bh7 f4 Nde4+ Kc7 Kd2 Bd6 Be2 Nf8 a7 Rb8 Bhg8 Ne6 Be8 Rh6 Bgf7 h4 B8b5 Rg6 Ba3 c1B+ Kd3 Bb2 Rd1 Ba1 Bc1 Bb2 Kd2 Qa3 Rh3 Bh2 Kc2 Bg1 Rh2 Nd7 Ba4 Kb6 Bab5 Be5 d6 Rg3 d5 Rh3 Qb3 Ka5 Qe3 Nb6 d7 Kb4 d6 Qa2 Qd4+ Ka3 Qc3+ Qb3+ Kd3 Qf8 d8B Bc6 d7 Bd6 Bf6 Qd8 Be5 Bb7 Rg2 Rh1 Rh2 Rc8 Na4 Rc4 Nac5 Ra4 Kd2 Qe8 d8B Bd5 Bdf6 Qd8 Bd4 Bc6 Bfe5 Bd5 Be3 Bb7 Nd4 Ba8 Ng3 Bg2 Nf3 Qg5 Nge4 Qg3 Qd4 Qd5 Kc2 Qa8 Qc4 Qd8 Qc3+
5b1N/p1Q1R2n/1R1p4/1B1b1Nk1/rq1b1b2/NPN1N3/qP2K1N1/r2nB1R1 b - - 0 1 legal: proof: e4 b5 d4 c5 g4 h5 gxh5 f5 exf5 cxd4 Qd2 b4 Qd1 b3 axb3 Rh6 Kd2 Rh7 Ke1 Rh8 c4 Kf7 f4 Kf6 h4 g5 h6 e5 h5 d6 c5 g4 c6 g3 c7 e4 h7 g2 h6 e3 Ne2 g1B Qc2 d3 Ra6 Bd7 c8N Qc7 Nb6 Qc4 Nec3 e2 Na3 Bc8 Bd2 Qf7 Nbc4 Bd4 Rg1 Qb7 Rb6 Nd7 Ne3 Ne5 Kf2 Qe4 Be1 d2 Qc1 d1Q Qc2 Kf7 f6 Rb8 f5 Qa1 Qc1 Nc4 Qc2 Ke8 f7+ Ke7 f6+ Ke6 Qc1 Bb7 Qc2 Bd5 Qc1 Be7 f8R Qa2 f7 Kf6 Re8 Bf8 Re7 Qg4 Qc2 Kg5 Qc1 Nf6 Qc2 Rg8 h8N Re8 Ng6 Nh7 Nh4 Rg6 Nf5 Re6 Nh4 Re4 Ng2 Rc8 Qc1 Rc5 Qc2 Ra5 Qc1 Qd7 Kf3 Qa4 Kf2 Qb4 Kf3 Bfg7 f8N Ra6 Ng6 Bf8 N6h4 Ra5 Ng4+ Ne3 Nf5 Ra6 Qc2 Nd1 N4e3 Ra5 Qd3 Ra4 Qc4 Ra6 Qc7 Ra5 Bd2 e1B Bb5 Bg3 Be1 Rf4+ Ke2 Rf1 Rf7 Bf4 Rd7 Ra4 Re7 Nf2 Bd2 Ra1 Be1 Nf6 h7 Nd1 h8N Nh7 Qb7 Bde5 Qd7 Bd4 Qc7
qBn1N3/5PNK/2n3p1/2k5/R1qpb3/Q1qP1N1N/BbN5/1Rrb1nBN b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 b5 gxh5 Ra7 c4 Rb7 Bh3 axb4 Bf1 b3 Bd3 b4 Bf1 Rb5 cxb5 Bb7 Qc2 Ba6 Qd1 Bc8 Ke2 d5 Kf3 Kd7 Kg4 Kd6 Kg5 e5+ Kg6 c5 a4 b2 f4 b3 h4 c4 h6 d4 h5 c3 a5 e4 h7 e3 f6 c2 f5 e2 b6 e1Q h6 Kc5 b7 Nd7 b8B Qe6 a6 Qe4 a7 Qd5 a8N Kc6 f7 Qe7 f6 Qed6 Nc7 Qe7 Nf3 Qdd6 Ne8 Bb7 Ra4 Qd8 Bc4 Qe6 d3 Ba8 Be3 c1Q Na3 b1N Bg1 b2 Qb3 Qc8 Nc2 Nd2 Qa3 b1B Ba2 Bb4 f8N Qc4 f7 Bc3 Ne6 Nf1 Nfg5 Bb2 Ne4 Nb6 Ng3 Qc3 Bc4 Nf6 Ba2 Rf8 h8N Ng4 Kh7 Ne5 Ng6 Rg8 Ne1 Bc2 Ngf4 Bd1 Nc2 Kb5 Nh3 Nc6 Rh2 Qa6 Nh1 Nc8 Rd2 Bb7 Re2 Qa8 Re1 Be2 Rd1 Qc4 Re1 Qd2 Rb1 Qdc3 Kg6 Bf3 h7 Bd1 h8N Kb6 Kh7 Rf8 Ng6 Kb5 Ne7 g6 Neg5 Kb6 Rb4+ Kc5 Nf5 Rg8 Nf3 Rf8 Ned6 Re8 Ng7 Re2 Nce1 Rc2 Nde8 Rc1 Ra4+ Nb4 Qb3 Be4 Nc2 Nc6 Qa3+
bN4kq/b1p3q1/B1Q2R1p/nqP3B1/P3rr2/1rN2RB1/3KbB1B/B3N3 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 d5 exd5 axb4 h3 f5 gxf5 Nd7 h4 g4 Ba3 Ne5 Bb2 Nf7 Bc1 Ng5 hxg5 Ra4 Nf3 Ra3 Ng1 Ra8 f4 Kf7 d4 b5 a4 e5 c4 h6 f6 e4 g6+ Ke8 g7 Kf7 c5 b3 f5 g3 d6 e3 d7 b2 d5 e2 d6 g2 Kd2 e1R Nc3 b1B Bb2 b4 Nf3 g1Q Ba6 b3 Rh3 Qe7 d8B Rh7 d7 Re4 Ne1 Rb8 Qf3 Bb7 Qg2 Qh2 Rf3 Ba8 Ra3 Qhe5 Ba1 b2 Rb3 Qg3 Rb6 Qe8 Re6 Ne7 g8N Nc6 Ne7 Na5 Nc6 Rbb4 Nb8 Kg8 Rc6 Bd3 f7+ Kh8 f6 b1Q Qh1 Bg7 f8B Kg8 Bd6 Rb3 Bf4 Qgg6 Bh2 Be2 Be7 Bh8 d8B Rf7 Bed6 Qh7 Bdg3 Qg7 Bf2 Qd3+ Kc1 Qb5 Kd2 Rfe7 Re6 Rf4 Rb6 Ree4 f7+ Kh7 f8B Kg8 Re6 Re5 Bfe7 Qgg6 Rd3 Nc4+ Kc2 Qed7 Nd5 Qh7 Rb6 Bf6 Qe4 Qh8 Rf3 Qg4 Kc1 Qgg7 Qg6 Ree3 Rc6 Be5 Beh4 Ree4 B4g3 Bc3 Bg5 Ba5 Nc3 Bb6 Qd6 Na5 Kd2 Ba7 Qd7 Rb1 Rf6 Rb3 Qc6
nnK1NN2/1QR2b1p/2r5/R4NN1/Bk1NPqN1/4np2/n1qR1P1B/2r4n b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Na6 a4 Be7 h4 Bc5 a5 Bb6 axb6 gxh4 Qd3 Nb8 Qd5 Ne7 Qd1 Ng8 Kd2 Ke7 Kc3 a5 Kd4 c5+ Kd5 f5 e4 h3 g4 d6 e6 h2 b7 a4 g5 c4 b6 f4 g6 f3 b5 c3 g7 c2 Na3 Nh6 g8N+ Ke8 e7 Kd7 e8N Qe7 Bf4 c1N Nh3 Qf6 Qb3 Nf7 Nc2 a3 Nd4 a2 Ne7 Ng5 Nef5 Ne6 Ng5 Ra6 Bd3 Qf7 Rd1 h1N Rd2 Qf6 Bh2 Nc7+ Kc4 d5+ Kc5 Na8 Bc2 Qh6 Qb4 Qh4 Ba4 Qf4 Qb2 Ne2 Rc1 a1N Rc4 Nc3 Qb4 Nc6 b8R Na2 b7 Nc2 b6 Ne3 Rc3 Nc7 Ra8 Rf8 Ra7 Na8 Kb5 Nb8 Ra3 Rf6 Qb2 Rc6 Qb1 Rc2 Rc3 Rc1 Rc7+ Kd8 Qb2 Be6 Qb4 Nc6 b8N Bf7 Nd7 Nb8 b7 Re6 Nf8 Rec6 Nb3 d4 Ra5 d3 Nbd4 Rf1 Nd7 Rfc1 Ndf6 Bb3 Ng4 Bf7 Re2 d2 Qb3 d1Q Rd2 Na6 b8N Qc2 Nd7 Nb8 Nb6 Nd7 Ka6 Nb8+ Kb7 Rf1 Nfh6 Rc1 Nd7 Ke7 Qb6 Rg6 Kc8 Rc6 Nef6 Kd6 Qb7 Qc4 Nf8 Qc2 Ra6 Kc5 Nhf5 Kc4 Ne8 Kc5 Ra5+ Kc4 Nb5 Kb4 Nbd4+
1KN3q1/2p1q1R1/r1r2q2/nN3RQ1/br1bk2p/7P/P4Rr1/1BBBB1BB b - - 0 1 legal: proof: f4 a5 g4 f5 c4 d5 cxd5 e5 b3 Nc6 b4 axb4 fxe5 f4 Ba3 Nce7 Bc1 Nf5 gxf5 Ra5 Na3 Ra6 Nb1 Ra8 Kf2 Ke7 Kf3 h5 Ke4 g5 d4 b5 f6+ Kf7 h3 Kg6 e6 g4 e7 b3 e8B+ Kg5 d6 g3 Kd5 Kf5 Kc6 b2 e4+ Ke6 f7 f3 d7 b4 e5 Kf5 e6 b3 d5 f2 d6 g2 e7 Bh6 f8R+ Ke5 Bg6 Nf6 e8B Ne4 Qd2 Nc3 Ne2 g1Q Rf5+ Ke4 Nd4 Rb8 Qg5 Qh2 Na3 b1R Nc4 b2 Nb5 Bg7 Be2 f1Q Bd1 Ne2 Nb6 Rg8 Rg1 Qe7 d8B Ra8 d7 Qhg2 Bh7 Ba6 Nc8 Bd4 Be3 Qg4 Rg3 Qff4 Bg1 Nc1 Rc3 Qgg3 Rc2 Nb3 Bf7 Rc1 Bd5+ Kd3 Bh1 b1R Nc3 Bb5+ Kb7 Ra4 Kb8 Ra6 Bg6 Ba4 Nb5 Na5 Bh7 Qc5 Bf6 h4 d8B Rb2 Bde7 Qce5 Bb4 Qe7 Be1 Rb4 Bg7 Qfe5 Bh6 Q5f6 Rb1 Qg2 Rb3+ Ke4 Rd3 Ba1 Rd7 Bd4 Bg6 Qee5 Rg7 Qee7 Rcf2 Rcc4 Rc2 Rcc6 Qf4+ Kd3 Rf7 Rg7 Rf2 Rc2 Re5+ Qf5 Qg4 Qh2 Bc1 Qg2 Bh7 Rgg6 Rc5 Qgd5 Rg7 Rgc6 Qg5 Qg8 Rf1 Rg2 Rf2 Ke4 Rc3 Kd5 Rcf3 Qfe5 Bb1 Qf6 Rc2 Ke4 Rf5 Qee7 Rcf2+
7R/4B3/n6P/2pbb3/k1Pp2NN/3qNbnR/R1q1Q1B1/KRqqr1RR b - - 0 1 legal: proof: d4 b5 a4 a5 axb5 h5 e4 e5 dxe5 Ne7 g4 hxg4 f4 Ng8 f5 Ke7 e6 Kf6 e7 Ra7 Ra4 Ra6 Ra1 Re6 fxe6 Kg6 e5 Rh3 Ra3 Rh7 Ra1 Rh8 Kd2 Kf5 Kc3 Ke4 e8N f5 b4 g5 Kb2 c5 h4 d5 c4 f4 h5 g3 b6 a4 e7 g4 b7 f3 h6 f2 b5 a3+ Ka2 g2 b6 g3 e6 Bg7 Qb3 Kd4 Rh3 Nf6 Bg5 Nh5 Nc3 Na6 b8R Bb7 Nf6 Re8 Ng4 Bc6 Kb1 a2+ Kb2 Ba8 b7 Bh8 Rc1 Bf6 Nd1 a1Q+ Kc2 Bh8 Qa2 Qc3+ Kb1 Qd2 Ka1 Qe2 Qa5 Qc2 Qe1 Qd6 Be2 f1B Bf3 Be2 Bh4 Rf8 e8R Bf6 Red8 Be5 e7 Rf4 e8R Re4 Rh8 Qg6 Nc3 Re3 Rdf8 Qgd3 Nd1 Re4 Be7 Re3 Nb2 Bd1 Qf1 Kc3 Be4 Kb3 Nf3 g1Q Nh4 d4 Rf7 Be2 Nd1 g2 Bc6 Rf3 Nde3 Ng3 Bd5 Ka4 Qe1 Bf1 Qe2 Qh1 Rf6 g1Q Rb6 Bg2 Rbf8 Qdb3 b8R Qbd3 Rbb1 Rf1 R8b2 Rd1 Be4 Bd5 Rf3 Qe1 Rf1 Qg1 Nef5 Qge3 Rfh1 Q1d2 Bf3 Rf1 Re1 Qdd1 Be4 Qec1 Nfe3 Rf5 Reg1 Rf1 Qf3 Re1 Qf2 Bf1 Bg2 Be2 Qf1 Bef3 Qf2 Nh5 Qe2 Ng3 Ra2+
N1R3r1/N3B1qp/4r2p/P4kbr/r1BQ3P/1nNn4/R2qN1N1/nK2N2B b - - 0 1 illegal: No proof kernel
4rqqq/8/R1K1Q2N/4B2p/2B1Bqpn/P1N2B1P/2n1rR2/NkB1Bb1n b - - 0 1 legal: proof: f4 a5 c4 e5 b4 axb4 g3 d5 cxd5 f5 Kf2 Bc5+ Ke1 Be3 fxe5 f4 Nh3 f3 Ng1 Bf4 gxf4 Qg5 Kf2 Qf6 Ke1 Qd8 Kf2 Kd7 Ke3 h5 Kd4 b5 Kc5 g5 d4 b3 e4 c6 d6 Ke6 d7 g4 d5+ Kf7 h3 Kg6 e6 b4 e7 b2 d6 f2 e5 Kf5 e8B Ke4 f5 b3 e6 Nh6 f6 Nf5 f7 Nh4 f8B Ba6 Bc4 f1N e7 Ng3 Rh2 Nh1 Na3 b1Q Nc2 b2 Ne2 Qc8 Kb6 c5 d8B Nc6 d7 Nb4 Bg7 Ra7 Bef7 Re8 Qd6 Ra8 Bcd5+ Kd3 Nc3 c4 Rf2 Ra7 Qe6 Qa8 a3 Qa2 Bf3 b1Q Be5 Qbb2 Rb1 Qc8 Na1 Nc2+ Nb3 Qb8+ Kc6 Rb7 Bdc7 Rb5 Bg3 Re5 d8N Re2 Na1 Q2b4 Ba5 Qe5 Bc7 Qh8 Bce5 Qb8 Rb6 Qb3 Nb1 c3 Bg8 Qb4 Nf7 Qf4 Nh6 Qf8 Bg7 Bc4 Ra6 Qbf4 Bf7 Qg5 Bf6 Qgg8 Bge5 Ne1 Bfg5 c2 Bcd2 c1Q Nc3 Nc2 Be1 Ra8 e8B Qf4 Bd7 Rd8 Bc8 Re8 Bb7 Ne3 Nb3 Kc2 Na1+ Kb2 Qf5 Bd3 Bc4 Nc2 Qe6 Kc1 Kc7 Kb2 Bbe4 Kc1 Kc6 Kb2 Na4+ Kb1 Nc3+ Kc1 Bb5 Rd2 Qf7 Qh2 Bef4 Bf1 Be5 Kb2 Qe6 Re2 Be3 Qg3 Bc4 Qgf4 Nb5+ Kb1 B3d2 Qgg5 Bc1 Qgg8 Nc3+
3RbNRn/2N1Nkp1/rb2q3/p2qr2B/N2r1r2/2qR1N2/PP1N4/B4KQ1 b - - 0 1 illegal: Other
1b4RB/2NBPk2/n5B1/5brB/1Rpq3p/B1PRNBbr/1K3b2/r2Q3r b - - 0 1 illegal: No possible last move, all moves rejected
6N1/2RbkN2/N2pqP1b/1R1q3n/Nr1p1r1B/2NP1pr1/BB2Q1N1/n2K4 b - - 0 1 illegal: No possible last move
3bR1r1/krBq1Bpb/2RBN3/n2PR1Q1/Rnp1P1N1/bq6/1R2p1K1/3R4 b - - 0 1 illegal: No proof kernel
N3k2b/1NB1Q1p1/2PR2q1/1K2n1BB/1BRrr3/Bp3n1q/p2P2b1/b2B1N2 b - - 0 1 illegal: Other
B1K2Rkq/pN3R1R/2N4n/R1r2p1b/1bq1PR2/3b1RP1/3r2p1/QB4Bn b - - 0 1 illegal: No possible last move, all moves rejected
b3Nn2/1pR1Q2P/1P3Bp1/nbKNp3/7k/1rbrNR2/2B2NRN/q1N2b2 b - - 0 1 illegal: Other
K1R2r2/1QbB1b1r/pp4R1/PRR2BB1/R3qp2/3rPr2/2rNk1Nn/4R3 b - - 0 1 legal: proof: h4 e5 b4 g5 f4 exf4 d4 c5 bxc5 Nc6 g4 Ne5 dxe5 Qe7 hxg5 Rb8 g6 Qd8 g5 Ra8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 c4 h4 a4 f6 c6 a6 c7 b6 a5 h3 g7 h2 g6 f3 c5 d6 c6 f2 Bg5 Rh7 e3 Be7 Bd3 f1R Nd2 Nh6 g8R Ng4 g7 Rf3 Ne2 Qe8 Re1 h1R Ra4 f5+ Kd4 Bb7 c8R d5 c7 Nh2 Rf8 Bb4 g8R Bd6 Qc2 Rhf1 Qc6 R1f2 Rg7 Rb8 Be4 Ba8 Qb7 Qg6 Rcd8 Rg2 c8R Qe8 Rc3 Bc7 Rc5 Rgf2 Rc8 f4 Ng3 Re2 Nf5 Qg6 Bd3 Ref2 Nh4 Qe4+ Kc3 d4+ Kc4 Re2 Ng2 Ref2 Rh8 Kf5 e6+ Kg4 e7 Re2 e8B Ref2 Bb1 d3+ Kc3 Kg3 Rg6 Re2 Bd7 Kf2 Nb3 Ra2 Nd2 Rc2+ Kb3 Re7 Rh5 Rh7 Nc4 d2 Rb5 d1R Nd2 Rc4 Bd3 Rc2 Rc5 Qe5 B3f5 Qe7 Qa7 Bc6 Qb7 Bd5+ Kb4 Ra2 Kc3 Rc2+ Kd4 Bf7 Rb5 Be8 Kd5 Bf7+ Bfe6 Qe8 Rc5 Ra8 Kc6 Rb8 Bf5 Qe5 Nc4 Rd3 Nd2 Qe7 Rb1 Ke2 Rb5 Nf1 Rh1 Nh2 Re1+ Kf2 Qa8 Rb3 Rf8 Rd3 Rfg8 Re8 Kb7 Qe4+ Ka7 Rd8 Qb7 Re8 Rg1 Ke2 Rh8 Re5 Rc8 Re8 Ka8 Rf8 Re1+
2B2k2/2NBq2R/KB1nRB1P/p2pp3/2B2n1b/1b1b1N2/3P2nB/1r2NQ1b b - - 0 1 illegal: No proof kernel
6R1/4r2q/2nB1R1p/1p3B1P/k1P1bNKB/1rqBq2n/1p1BRQB1/2N1q3 b - - 0 1 legal: proof: d4 c5 dxc5 a5 f4 f5 e4 e6 exf5 Nh6 g4 Ng8 b4 Be7 g5 Bf6 gxf6 axb4 Ke2 b5 Kf3 g5 c4 d5 a4 Kd7 h4 Kc6 a5 d4 a6 e5 h5 d3 a7 d2 f7 e4+ Kg4 e3 f8R e2 Nh3 e1Q Rg1 h6 Rf6+ Qd6 Qc2 b3 Bd3 b2 Nc3 d1Q+ Ne2 Rh7 Bd2 Qb1 Nc1 Re7 Rg3 Kb7 c6+ Kb6 c7 Bb7 c8B Nc6 Be6 Rd8 a8B Qb4 Rg2 Rdd7 Re2 Qc3 Ra6+ Kc5 Rf8 Kb4 f6 Rd8 f7 Rde8 f5 Nf6+ Kf3 Nd5 f6 Nf4 Kg4 Rd8 Rg8 Rd6 f8B Rd4 Bh7 Rd3 f7 Re3 Rb6 Ka5 Qf5 Ka4 Bg7 Rd3 f8B Re3 Bf6 Qbc2 Nf2 Nh3 Nfd3 Qb1 Qf2 Qbc2 Kf5 g4 Bh4 g3 Kg4 g2 Bef5 Rf3 Nf4 g1Q+ Qg3 Qge3 Qf2 Na7 Bd3 Be4 Bf5 Nc6 Bb7 Qh8 Ba8 Qh7 Bb7 Qc3 Ra6+ Na5 Rf6 Nc6 Ba8 Rd7 Ba3 Re7 Bd6 Nd8 Nd5 Qa3 Bb1 Qa7 Be3 Bc2 Nb4 Qb6 Bae4 Nc6 Bd2 Re3 Bf3 Be4 Nd5 Qb4 Bg2 Rb3 Nf4 Qc3 Bc2 Qbe3 Bd3
R3NB2/n1B1qk1N/2N1rp1b/N1n1p1pP/6n1/1N2r1R1/Q2q2P1/NK2nB2 b - - 0 1 illegal: No proof kernel
Nk1q2B1/1B3QBK/3BprnR/1p2q3/n1BR2N1/2P1P3/R2nn2p/4rbB1 b - - 0 1 legal: proof: g4 a5 d4 g5 b4 c5 dxc5 axb4 h4 f5 gxf5 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qb6 Qd3 Qa5 Qd1 Qd8 Kd2 h5 Ke3 b5 Ke4 d6 f4 Kd7 a4 Kc7 a5 b3 a6 h4 g6 b2 f6 g3 c3 h3 c6 g2 g7 Bg4 a7 Rh4 f7 Kc8 f8B Rh7 f5 Rh6 f6 Rh7 f7 Rh8 c7 Kb7 c8R Rh4 Be3 Nd7 Nd2 b1N Ngf3 g1N Nh2 Nb6 Ra2 Na4 Rc4 Rh6 Qb3 Rf6 Rd4 d5+ Ke5 Bf5 Nc4 Bd3 Nb6 Nd2 Ng4 Rc8 a8B+ Kb8 Qc4 e6 Bb7 Ne7 g8B Rc5 Qb4 Bc4 Bg7 Bd3 f8B h2 Na8 Rc4 Bf2 Rc5 e3 Ne2 Qb1 Rc6 Qe1 Rd6 Bg1 Bc4 Qf2 Ra6 Re4 d4 Qf4 d3 Rd4 Rg6 Qf7 Rf6 Rf4 Rd6 Rf5 Rd4 Rh5 Rdf4 Rh6 Rf3 Bg2 Rf1 Bge4 Re1 Bed5 Nf5 Be7 Nh4 Bb4 Nb3 Bbf8 d2 Ba3 Bd3 Bc4 d1Q Bd6+ Qc7 Bf2 Qd2 Rf1 Qd1 Bg1 Nd2 Rf4 Nd4 Bh7 Bf1 Bg8 Ne2 Rd4 Rf2 Rf4 Ng6+ Kf6 Rf3 Kg5 Rf2 Rd4 Rf6 Rd3 Qc2 Rd4 Qd3 Rh4 Qe4 Kh6 Qd5 Kh7 Qe5 Ba3 Qd7 Rh6 Qd8 Bd6+
3BNr2/3pn3/p1B3BR/p3QbR1/2B3bP/k2B3b/P1KR2n1/NB2r1br b - - 0 1 illegal: No proof kernel
1KR5/r3B3/QpNr4/Nbn3q1/3N2B1/b1Pp2n1/2pkrp1P/NNR3NR b - - 0 1 illegal: No possible last move
3QB3/1R2p1B1/1K1pn2b/N3Rp2/1pNN1rN1/n1rP2r1/q3P1kN/1N2bB2 b - - 0 1 illegal: No possible last move
7n/BBP1Q1NR/5N1p/q3pnP1/2B1K1NB/1k4r1/1rpR1p1B/1b3Bbn b - - 0 1 illegal: No proof kernel
1br5/nQp2p1p/2BqR3/2k3P1/1N2NR1B/1Pn2r2/NKpNb2N/4NbR1 b - - 0 1 illegal: No proof kernel
N1qQ3B/kn1BN1Np/2p1Kn2/nB2B1PB/8/brR2b2/p4p1P/3B2bR b - - 0 1 legal: proof: f4 e5 a4 a5 b4 g5 fxg5 b6 d4 Bb7 dxe5 Na6 c4 b5 c5 Nb8 c6 bxa4 b5 Ra7 Ba3 Bc8 Bc1 Rb7 cxb7 Bh6 Kd2 Bg7 Ke1 Bf8 Kd2 d5 Kc3 Kd7 Kd4 f5 e4 c6 g4 Kc7 e6 Kb6 Ke5 a3 e7 d4 e8B a2 g6 f4 g7 d3 g5 f3 Ne2 a4 Bh5 d2 Nf4 a3 Ne6 Bb4 Bb2 Bc5 Nc3 Ne7 g8B Bg1 Rc1 a1B Ng7 f2 Nd5+ Ka7 Rc3 Nd7+ Ke6 a2 b8N Ng6 e5 Qf8 Na6 Nh4 Ne7 Nf5 Nc7 Nd6 Na8 Nb7 Bgf7 Qe8 Bfg6 Rf8 Bc2 Rf4 Bfd3 Rb4 Bf1 Rb3 b6+ Kb8 Bb5 Qh8 Qg4 d1N Qd4 Ne3 Bcd1 Nc4 Qd2 Nca5 Qd5 Nd6 b7 Ka7 b8B+ Kb7 Bc7 Ka7 Qd3 Ba6 Qd2 Nf6 Qd5 Ndb7 Qd8 Ne4 Kd7 Qf8 e6 Qg8 Be5 Qh8 Ba4 Be2 Bb5 Bg4 Ng6 Be2 e7 Nf6+ Ke6 Bf3 e8B Qf8 Ne7 Qh8 Bc1 Bb2 Bd7 Ba3 Bb2 Qf8 Ngf5 Ne8 Bh8 Nf6 Ng7 Qe8 Rc1 Qf8 Be5 Qe8 Rc3 Qf8 Qc7 Qc8 Qd8
r1B2k2/1BQ2ppB/3BR2r/qN1b2pR/3B1BK1/1RN2P2/pr1b2P1/2n3q1 b - - 0 2 legal: proof: d4 b5 e4 d5 a4 c5 axb5 h6 Qd2 Na6 Qg5 hxg5 dxc5 d4 Bc4 Nc7 Bf1 Nd5 exd5 Bb7 Ra4 Ba6 Ra1 Bc8 Ke2 a5 Kf3 e5 h4 d3 c4 d2 b4 d1R h5 a4 c6 a3 h6 a2 h7 Qe7 d6 Be6 c7 Nh6 c8B Ra5 d7+ Kd8 b6 Ng4 b7 Rad5 b8Q Ra5 c5 Ra7 c6 Rd5 b5 Qc5 c7+ Ke7 d8B+ Ke8 b6 Qd6 b7 Rd2 Rh3 Ra5 Bf6 Ra6 Na3 Rb2 Ne2 Qe7 Bf4 Bc4 Re1 Ra8 Nc3 Qb4 Nab5 Qa5 Bd3 e4+ Kg3 e3 Bd4 e2 f3 Ke7 Rh5 Bd5 Bc2 Rg8 h8R Ne5 Bh7 Nd3 Kg4 Nc1 Qa7 Ke8 b8B Bb4 Bb7 Kf8 Qb6 Ra6 c8B Ra8 Bbe5 Ra6 Qc7 Rh6 Rd1 e1Q Rd3 Qg1 Bd6+ Ke8 Ne2 Be1 Rb3 Bd2 Nec3 Rf6 B6e5 Kf8 Rh6 Rb6 Re6 Ra6 Bc2 Ra8 Rh5 Rh8 Be4 Rh6 Bf5 Rb1 Bh7 Rb2 Bd6#
2QKRr2/Np1p3n/1P6/5pr1/1N1PN1nb/Nr1b2N1/RBn1p1kN/R5B1 b - - 1 2 illegal: No proof kernel forced: wxLB
5kQ1/p1p5/r1Rn4/1R1Np2N/1K2PnRq/P1nB1r1N/Nb1b4/BNqN3b b - - 0 1 illegal: No proof kernel
B1K1R2b/2R2rp1/R2pR3/2p1NrQ1/qRbnqBP1/3nRqkN/2P4N/7b b - - 0 1 illegal: Other
2BN3N/2QB1bb1/1p1Bp1R1/prqb2RB/rP2b3/2nNP1K1/3n2B1/nkB5 b - - 0 1 illegal: No proof kernel
2n3NB/7p/KRrQbbBN/2p1Bpn1/k3rP1n/1N1B1bBB/1n5P/3qR3 b - - 0 1 illegal: No proof kernel
B1qR3B/N2p4/qrBBRnBK/3p1qpB/b1nNQb2/3p2P1/3P3r/5Nk1 b - - 0 1 illegal: Other
3Nq1N1/2n1RpR1/pR1KpR2/Pkr1rpn1/3b1R2/B3PB2/n5Q1/3RnbB1 b - - 0 1 illegal: No proof kernel
r1N1q3/6N1/NR1RNQ2/2nN3B/1b1krBr1/4pB1P/PK5B/1n2q1n1 b - - 0 1 illegal: No possible last move
2bbK1N1/1kP1N3/1RNRr1P1/3rb2n/1B1rpN2/2N4Q/1B2Q3/3b1q1N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 c4 a5 b4 d5 Bd3 a4 c6 Nd7 c5 Ne5 Bf1 Nc4 Be2 Na5 Bc4 dxc4 bxa5 Qc7 Rh6 Qd7 Rh1 Qd8 Ke2 e5 Kf3 h5 Ke4 h4 g4 a3 f4 a2 f6 c3 c7 h3 f7+ Ke7 c6 c2 f5 h2 f6+ Ke6 b6 Be7 f8N+ Kf7 a6 Ke8 g6 Bb7 Kf5 e4 Ke6 Rh5 c8N Qd2 g7 Kd8 Kf7 Bd6 a7 Be5 g5 Qd4 g6 Bg3 Qe2 Rh7 Ne7 Qd7 Bb2 c1R Nc3 Rc8 a8Q Qf5 Qa3 Rh5 Nh3 Bc7 Nf2 Rd1 Rf1 Rd3 Nh1 Rd4 Rfd1 Qf1 Rd3 Ba6 b7 Rhd5 b8N Ba5 Rd2 Kc7 Ne6+ Kb6 Rdd1 Re8 Nf4 Bc8 Qb3+ Ka7 Rd2 Bd8 c7 Ka8 Qa3+ Kb7 Nbc6 Rg5 Qb3+ Rb5 Qe6 Rg5 Qh3 Rgd5 Nf5 Re6 Nfe7 Qd1 Ke8 Qf1 f7 Nf6+ Kf8 Nh5 g8N Rc5 Ke8 Rcd5 Ng3 h1B f8B Bf3 Nh1 Rg5 Qe1 Bd1 Qe2 Rb4 Rd6 Rd5 Bg7 Rc4 Bd4 Rb4 Bc5 Rbd4 Bb4 Ba4 Rd1 a1B Rd3 Bd1 Rg3 Rd2 Rg5 R5d4 Ra5 Rd5 Ra3 R2d4 Ra6 Rg5 B2a3 Rc4 Na4 Rd5 Bc1 Bc3 Bb2 Be5 Nc3 Rcd4 Rb6+
1q2B1r1/1n1Nb3/3rnpkP/1r1R4/R2P1b2/Np2Q3/B6R/1RKRNN2 b - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 a5 cxd5 h6 b4 Qd7 bxa5 Ra7 g4 Qd8 g5 Be6 g6 Ra8 Ba3 Kd7 Bc5 f6 Be3 Bf7 Bg5 hxg5 gxf7 Qc8 Na3 Qe8 Nb1 Qd8 e4 Ke7 a4 c5 d4 b5 Kd2 c4 h4 g4 e6 g5 e5 c3+ Kc1 c2 a6 g3 a5 b4 a7 g2 h5 g4 h6 g3 a6 Rh7 Bc4 Qa5 d6+ Kd8 e7+ Kd7 e8N Qb6 Qf3 Rg7 Rh2 Rg5 Nd2 Be7 Nc7 Nc6 Qe3 Rd8 a8N Na5 a7 Qb8 Rb1 Nb7 Ba2 b3 Nb5 Ke6 d7 Kf5 e6 Kg6 Ngf3 g1R+ Ne1 g2 Na3 Rh5 Nf1 Rb5 Kd2 c1B+ Kd1 Rc8 d8R Rc6 Nb6 Rd6 a8R Bd2 Nd7 Bc1 Qh3 Bf4 Ra4 Bf8 Re8 Ne7 Nf3 Nc6 e7 Kh7 Rc8 Ncd8 Rcc1 Rh1 Ne1 g1Q e8R Qe3 Re4 Rg1 Re5 Rg8 Rd5 Qe8 Qe3 Be7 Kd2 Ne6 Rd1 Kg6 Kc1 Rb4 Nc4 Rbb6 Na3 Rb5 fxe8B+
3NK3/2N2N2/B4NPr/1p2R3/5pqb/6nR/BQ1Prb1k/RR1rR2r b - - 0 1 illegal: No possible last move
q2bB1Q1/N2Q4/2nP2Q1/Q4RBb/KQnb1r1Q/3P1Nr1/5nq1/1kq3R1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 h4 Kd7 f4 Kd6 f6 Kc5 f5 Kd4 h6 g5 h5 c5 b6 e5 b7 b3 h7 c4 h6 g4 d6 c3 f7 c2 f6 g3 Nc3 g2 Qg4+ e4 Qg6 b2 Bb5 b1N d3 e3 Rh5 e2 Bg5 Na3 Kd2 Nc6 b8Q Bg7 f8Q Ra4 f7 Nf6 Qe8 Rg8 f8Q Bg4 h8Q e1B+ Kc1 Bf3 Kb2 c1Q+ Kb3 Nc4 h7 Ne4 Qd7 Bh4 Qff5 Nf2 Qbb7 Be5 Rb1 Rg7 Qg8 Qa8 h8Q Bf6 Qbc7 Bd8 Qa5 Bg3 Qb4 Be5 Rh3 Bh5 Rf3 Bef6 Rf4+ Ke3 Nf3 g1Q Ra1 Qg2 Qhh7 Qd2 Rg1 Qc1 Qfd5 Bd4 Qdc5 Bg4 Qh4 Bh5 Qca7 Ra5 Ba4 Rf5 Nb5 Rff7 Qaa5 Rf6 Rg4+ Rf4 Na7 Ke2 Bb5 Ke3 Ka4 Ke2 Ne1 Kd1 Nf3+ Kc2 Rf1 Qh1 Rgg1 Qg2 Qdc7 Nb8 Be8 Nc6 Qbc5 Kb1 Qd7 Rg4 Qa3 Rg3 Q3c3 Rf7 Qd2 Rf4 Qdb4+ Ka1 Re1 Ka2 Re5 Ka1 Rf5 Ka2 Qd2+ Kb1 Qdb4+
6Q1/5RNN/P2Nb1bP/qQ6/2nN3K/3B2nb/B1R1r1rN/n1N1kr1n b - - 0 1 legal: proof: f4 a5 c4 f5 b4 e5 bxa5 d5 cxd5 h6 fxe5 f4 g3 f3 Ba3 Be7 Bd6 Bh4 Be7 Bg5 Bf6 Be3 Bg5 Bf4 gxf4 hxg5 Kf2 Ke7 Kg3 c5 h4 b5 e4 c4 d4 g6 a4 c3 a6 c2 f5 c1N a7 b4 f6+ Kf7 h5 f2 h6 g4 a5 b3 a6 b2 d6 Ke6 d7 g5 f7 Ne7 Qe2 Qb6 d8Q Nbc6 Qg8 Nb3 Nd2 b1B Qb5 Qa5 Bd3 f1B Ne2 Bh3 Ra2 Na1 Nc1 Bc2 Nf3 Nf5+ Kf2 Bb1 Rf1 Ng3 Nh2 Rb8 a8B Nh1+ Ke3 g3 Kf3 g2 Rc2 g1R f8N+ Ke7 d5 g4+ Kf4 g3 Kg5 g2 e6 Kd6 e7 Ke5 e8N Kd4 e5 Ke3 d6 Bce6 Rf7 Rf1 d7 g1N d8N Ne2 Nh7 Neg3 Kh4 Rb7 Ng7 Re7 Rc4 Kd2 Rc2+ Ke1 Bb7 Bb3 e6 Ne5 Nc6 Nc4 Nd4 Re8 e7 B3a2 Rd2 Bb3 Bd5 B3a2 Be2 Bg6 Rc2 Bb3 Qf8 Rg8 Bd3 Ra8 e8N Ba2 Nd6 Re8 Rb2 Re2 Qd8 Rg2 Qc8 Re8 Rc2 Ree2 Qg8 Ne3 Bf3 Bae6 Ba8 Nc4 Bd5 Nb6 Bb3 Nc4 Ba2
n2N2N1/rR3KN1/B4Pr1/B2BR2q/2B5/B1P2nq1/N2q1q2/kbQ2q1b b - - 0 1 legal: proof: g4 b5 d4 c5 f4 cxd4 a4 f5 axb5 g5 fxg5 f4 h4 e6 e4 f3 g6 Qb6 g7 Be7 g5 Qd8 g6 Bg5 hxg5 f2+ Kd2 Qc7 Bc4 f1N+ Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Kd5 Kh5 a5 b4 d3 f6 Kc4 c3 d5 b6 a4 b7 d4 b5 a3 b6 e5 Ra2 e4 Rh3 e3 Qg4 Kb3 Nf3 e2 Ra1 e1Q Bb2 a2 Na3 d2 Rb1 a1Q Nc2 Ka2 Qf4 d1Q Ba3 d3 Qc1 d2 Ba6 Nd7 b8B Ne7 g8B+ Nd5 g7 Qf2 b7 Qde1 g6 d1Q Bc7 Ne5 b8N Bf5 Rb7 Ra7 Nc6 h6 Bf7 Rg8 Ba5 Qb1 N2b4+ Ka1 Rh4 Nb6 Na2 Q8d2 Nd8 Na8 Re4 Qg3 Bb3 Qef2 Bd5 Qh1+ Nh4 Nf3 Re5 Bd3 Qc2 Qbf1 Qc1+ Bb1 Bdc4 Re8 g8B Qhh3 Bgd5 Rg8 g7 Qhh1 Qc2 Qhh2 Rg5 Qhh3 Kg6 h5 Nf5 h4 Qc1 Qhh1 Bc7 h3 Kf7 h2 Bb6 Qfd1 Rh5 Qhf1 Ba5 h1B Rg5 Rh8 g8N Rh6 Ng7 Rg6 Re5 Qd1e2 Re8 Qee5 Re6 Qh5 Re5
3r3B/1nn2k2/3N1N1q/bN1RK1P1/2b1PB2/1N6/1RB1bqqN/qQ2B2n b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 g5 h3 Ra6 h4 Rg6 gxf5 exf4 Bg2 g4 Bf1 Rg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 Kf2 h5 e4 c5 d4 g3+ Kf3 h4 b4 h3 f6 g2 d6 h2 b6 a4 b7 a3 f7+ Kd7 b5 Ke6 d5+ Ke5 b6 c4 d7 c3 d6 Ke6 Bd3 a2 Bd2 c2 Nc3 c1Q Bc2 Nc6 b8N Rh5 b7 Qb1 Na6 Rh4 b8B Nge7 Nb5 Rh8 Be1 Qb2 Rb1 Qb6 d8B a1Q d7 Nd5 Bf6 Bb4 f8N+ Kf7 Nh7 Na5 Nc5 Ba6 Nb3 Rd8 Bh8 Nb7 Nf6 Nc7 Qc1 Q2d4 Rb2 Ba5 Qb1 Qf2+ Kg4 f3 Kf5 Qc6 Ke5 Qcb6 Ne2 g1Q Ng3 Qc6 Nf1 Qgg2 Rg1 h1N Nh2 Qh4 Rf1 Qh6 Rf2 Qb6 Rd2 f2 Rd1 f1B Rd5 Na8 Bd6 Be2 Bc7 Qbf2 Bb8 Rf8 Bd6 Nc7 d8N+ Kg6 Nf7 Rd8 Bdb4 Bc4 Nfd6 Be2 Bbd2 Bc4 Nc8 Kf7 Bf4 Be2 N5d4 Bad3 Nb5 Bc4 Ncd6+
2q1Bb1n/P2QbB1R/6bb/R1b2r2/7R/k4N1r/PRQ1R2R/2qbNK2 b - - 0 1 legal: proof: f4 e5 fxe5 d5 b4 a5 bxa5 f5 g4 d4 Ba3 f4 Be7 h6 Bg5 hxg5 c3 Nc6 cxd4 Nce7 d5 Nf5 gxf5 Rh3 Nf3 Rh4 Ng1 Rh8 h4 Kd7 d4 c5 e4 b5 a6 b4 f6 g4 e6+ Kd6 f7 g5 e7 g3 e8B c4 a7 f3 e5+ Ke7 h5 c3 h6 g2 e6 Kd6 e7 c2 h7 c1B Nd2 b3 Rb1 g4 Rh4 g3 Bc4 b2 Qc2 f2+ Ke2 Nh6 Ngf3 g1B Kf1 Bd7 Ne1 Qc8 Ndf3 Bg4 Rh2 Rb8 Bb3 Rb5 Bc4 Bg7 f8R Nf7 Rg8 Bf6 Rg7 Bh6 Bb3 Bh5 Rg4 Bfg7 Rgh4 Bf8 Bc4 Rg8 h8R g2+ Ke2 Rg5 Rh7 Rf5 Bb3 Nh8 Bc4 Kc7 d6+ Kb6 d5 Kc5 d7 Kb4 d8Q Ka3 d6 Rb3 d7 Bg4 Bcf7 f1Q+ Kd1 Qfc4 Qc7 Bc5 d8R g1B Qd7 Qf4 Ke2 Qc1 Kf1 Bgf2 Nd2 Rh3 Nf3 Qc7 Ra8 Qc8 Rb8 Bfd4 Rb5 Bf6 Bh5 Bfg5 Bef7 Bf6 e8R Bfg5 Ree2 Bge7 Ra1 b1B Be8 Rg5 Bhf7 Re5 Qcf5 Bc2 Rab1 Bh5 R1b4 Bd1 Rbb2 Bg6 Qc2 Rf5 Ra5#
qB1N4/NN1R4/2P1K1Pr/q1Nr4/2q1R3/1nbb1qRr/Q2B1k2/3r2RR b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 Kf7 exf5 g6 d4 Qc7 dxc5 Qd8 f6 Ke6 f7 Bg7 Be2 Bh6 Bf1 Bf8 g4 Na6 h4 Bh6 f5+ Kf6 g5+ Ke5 f6 Bg7 Bd3 Bf8 Be4 Nc7 Bf5 gxf5 g6 Ne6 Qg4 Ng5 hxg5 Kd5 Qd1+ Ke6 Ke2 Ke5 Kf3 d5 c4 h5 b4 a5 g7 h4 c6 h3 c5 d4 c7 a4 c6 f4 g6 d3 b6 Kd4 b5 e5 b7 h2 b8N d2 b6 a3 b7 a2 Qc2 d1R Nh3 Bf5 c8N Qa5 Nc3 Bb4 f8R Nh6 g8R Bd3 f7 Nf5 Kg4 f3 Bd2 e4 Nd6 e3 Re8 e2 f8R e1Q Ng5 f2 Rg7 f1Q Nd7 Qef2 b8B Rh3 Ngf7 Qf3+ Kg5 Ra7 Nc5 Rd7 Ndb7 Rd5 Kf6 Q1e2 Rc1 a1Q Nfd8 Qef1 Rg1 h1R Ke6 Rh6 Rc7 R1h3 Rd7 Qa8 Ree7 Q1a5 Qa2 Q1e2+ N3e4 Qef1 Ned6 Bc3 Nc8 Q1e2+ Kf6 Qee4 Na7 Qef4 Ke6 Q4g4 Be1 Ke3 Bd2+ Kf2 Rg3 Qd4 Rh8 Qc4 Ree8 Rdh1 Rcg1 Nd4+ Ke7 Nb3 Ke6 Be2 Ref8 Bd3 Rf4 R1h2 Re4 Rg2 Rh1 Rg1 Rf8 Re1 Rf5 Rd1 Rfg5 Qf8 Rgg1 Qf3 R5g3
n1QKNq2/2N1Pp2/N2B1r2/2b3RR/2P3Q1/2Nk1nrr/3b2n1/B2Nb1N1 b - - 0 1 legal: proof: d4 e5 f4 b5 fxe5 c5 dxc5 b4 g4 b3 h4 Qf6 axb3 Nc6 b4 Qd8 b5 Nb8 h5 Nh6 Bh3 Ng8 h6 Bb7 Bg2 Bd5 Be4 Be6 Bd3 Bf5 Be4 Bg6 Bf5 Bh5 Bg6 hxg6 gxh5 Qe7 Qd5 Qg5 Qd1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 c4 Ke4 h7 d5 b6 a5+ Kb5 g5 b4 a4 e6 g6 c6 g4 c7 a3 c8Q a2 h6 g5 e7 d4 e8N d3 b7 d2 Rh5 g3 Nc3+ Ke3 Ba3 Nd7 Kc6 g4 b8N g2 b5 g3 b6 Bc5 b7 Ngf6 Na6 Ne4 b8N Ng5 Nac7 Nb6 Nba6 Nf3 Bb4 Kd4 e4 Kd3 e5 Qd6+ Kb7 Qf8 e6 Be3 Rb1 a1B e7 Ra7+ Kc6 Na8 Kd7 Bf2 Rb3 Be1 Bd6 Rb7 Rb4 Rb6 Rbb5 Bb2 Ra5 Bc1 Rag5 Rc6 Kd8 Rb6 Qa4 d1N Qad7 Bcd2 Qg4 Ne3 Nd1 Rc6 Bc5 Rf6 Bd6 Rg8 h8N Rgg6 h7 Rh6 Ne2 g1R Ng6 g2 h8B Rh7 Nec3 Rh6 Rh2 Rh3 Rh1 Rf1 Bg7 g1B Nh4 Ng2 Rh2 Bc5 Bh8 Ne5 Nf3 Rh1 Ng1 Nf3 Bg7 Rg3 Rhh5 Rhh3 Nb1 Rf4 Ba1 Rf6 Nbc3
b1br1n2/P2kp1b1/B1qn2NN/2N4Q/5N2/1B1R2B1/BnP2rr1/RK3B2 b - - 0 1 legal: proof: f4 a5 e4 f5 d4 g5 fxg5 c5 g6 f4 dxc5 f3 g7 Qb6 g4 Qg6 h4 Qa6 b4 axb4 h5 Qg6 hxg6 f2+ Kd2 Ra7 g5 Ra4 Bg2 f1B Ke1 Ra8 Bh3 Bc4 Bg2 Be6 Bf1 Bf5 exf5 Ra7 Bb2 Ra4 Bc1 Ra8 Kd2 b5 a4 h5 a5 d5 c6 h4 f6 d4 a6 b3 c7 h3 f7+ Kd7 a7 b4 Qe2 b2 Qh5 b3 Ne2 h2 Nf4 d3 Nc3 b1R Ne4 Nf6 g8B b2 g7 Ne8 g6 Nd6 Rg1 h1B Rg3 Rh6 Kd1 d2 Nc5+ Kc6 Rd3 Nd7 Qg5 Rh2 Qh5 Bb7 c8B Rf2 Nb3 Rb8 Nc5 Ba8 Ba6 Rd8 Bh7 Be4 g8N Bg7 f8N Bf5 Nh6 Be6 Bg8 Bh3 Nh7 Nf8 Bb3 Bc8 Ba2 Be5 g7 Bd4 g8B Bg7 Nb7 Kd7 Bgb3 Rf3 Ke2 d1N Be3 Rg3 Bf2 Rg2 Ke1 Rc1 Kd2 b1Q Nc5+ Kc7 Ng6 Nb2 Nf6 Re1 Kc3 Re2 Bg3 Ref2 Ne5 Re8 Nd5+ Kd8 Nf4 Qe1+ Rd2 Qe4 Rd3 Qc6 Ng6 Rf6 Nf4 Kc7 Neg6 Rd8 Be2 Rf5+ Kd2 Rf7 Kc1 Rf5 Kb1 Rf6 Ne4 Kd7 Bf1 Rf5 Nh3 Rf3 Nhf4 Rff2 Nc5+
3nbQ1q/bnN3P1/1r1P1r2/1B6/1R3N2/B1R3KR/1nBp3R/k1rq2BR b - - 0 1 legal: proof: c4 b5 e4 d5 a4 g5 axb5 f5 exf5 c5 d4 Kd7 h4 gxh4 dxc5 d4 Ra3 Ke8 Ra1 Qd5 cxd5 Be6 Nf3 Bd7 Ng1 Bc8 b4 Kd7 g4 a5 f4 e5 Kf2 h5 f6 e4 c6+ Kd6 f7 h3 c7 d3 f5 Ke5 b6 Kd4 g5 h4 b7 d2 g6 a4 b5 a3 g7 h2 f6 a2 b6 e3+ Kf3 h3 Bb5 e2 Qf1 e1N+ Kg3 Nh6 Ba3 Bc5 f8B Bd7 c8B Be8 f7 Nd7 b8R Nd3 b7 Ba7 Nc3 Nb2 Rc1 Nc5 Bf5 a1Q Bc2 Rh7 Rd8 Rb8 Be7 Rh8 f8R Nf7 d6 Rh7 Nd5 Rh6 Bg5 Rf6 Nc7 Kc3 Rh8 Qb1 Rc8 Nd8 Be3 Qa1 Re1 Qb1 Re2 Qd1 Bcd3 Kb3 Bc2+ Ka2 Rg2 Ka1 Ne2 Nde6 Nf4 Nd8 Rhg1 h1Q Rh2 Ra8 b8R Ncb7 Rhg2 h2 Rh3 Bc5 Qf3 Ra6 Rf1 Ba7 Bg1 Rb6 Re2 Nc5 Qf2 Qa8 Qf3 h1R Reh2 Ncb7 Bd4 Ne6 Rg1 Qb1 Qd5 Rf5 Qe5 Bc6 Bf2 Ra6 Qf6 Na5 Bbd3 Bb5 Qf7 Rf6 Ncd5 Qe1 Rb6 Nb7 Rc3 Qh8 Qf8 Be8 Rb4 Ned8 Bb5 Rb6 Nc7 Qb1 Rgg2 Rg1 Rh1 Qf1 Bc5 Qe2 Bd4 Rc1 Rgh2 Qd1 Bg1
1N2R3/b1Rp2Q1/1Br3P1/7R/1r1R2n1/2n2Pk1/RQb2n1r/1BKR1qNq b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 e4 c5 exf5 b4 d4 cxd4 a3 Qb6 axb4 Qc7 b5 Qd8 Kd2 Kf7 g4 h5 c4 e5 c5 d3 b6 e4 a6 h4 f3 h3 f6 Kg6 a7 h2 f7 Rh5 b7 Na6 b8R Nc7 c6 Rh3 Nc3 Rh7 Na4 Qf6 Qb3 Nh6 Rb4 Nb5 c7 Bb7 c8R Bc5 f8R Qa6 Rfe8 Rb8 a8R Nc3 Rd4 Ba7 Nc5 Qc4 Ba3 e3+ Kc1 e2 Na6 Be4 Bc5 Rb4 Rc7 e1N Nb8 d2+ Kb2 d1Q Bb6 Bc2 Ra5 Re7 Bd3+ Re4 Rf5 Re6 Be4 Rc6 Rb5+ Kf7 g6+ Kf6 g7 Qf1 Rf5+ Kg6 g5 Kh5 g8Q Kh4 g6 Ng4 Rh5+ Kg3 Qg7 Qb1+ Ka3 Nd3 Qb2 Ndf2 Bf5 Ba4 Be4 Qbc1 Bb1 Bc2 Nh3 Qd3 Rd1 h1R Ng1 Qh6 Qb3 Qh7 Kb2 Rh2 Kc1 Qf1 Qb2 Rg2 Rf5 Qh1 Rh5 Rh2 Bc5 Bb6 Ra2 Ba7 Bb6
n2Q3b/2p2rn1/1N1q2Rk/R1q3bb/n4PBN/P2N2RK/2RN4/Nr3B2 b - - 0 1 illegal: No possible last move, all moves rejected
b4k2/n1R4B/1BB2R1K/N1nq1R1b/B1prP2R/3r1B1Q/2N3Pr/1nn5 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 b5 Kf3 f5 Kf4 h5 d4 c5 a4 c4 e4 h4 e6 h3 g6 b3 g7 b4 e7 b2 Kg5 b3 a5 h2 d6 f4 d7+ Kf7 d5 f3 d6 f2 a6 Nc6 a7 Nb8 Qh5+ Ke6 Qh3+ Kf7 Na3 b1R Nc2 b2 Ra5 Na6 Be3 Rd1 Bb6 b1N Nf3 Nc5 Be2 f1B Nd2 Bb7 Bf3 Be2 Nb3 Rd3 Rb5 Rb8 a8B Bd5 Bc6 Rc8 Rf1 h1N Na5 Nf2 Rh1 Rd4 Rh2 Nfd3 Rh1 Nc1 Rh2 Qe8 d8R Qd7 Re8 Qb7 d7 Rc7 d8R Rd7 Rc8 Rh6 Red8 Rd3 Qg3 Rh4 Rh1 Rh2 e8B+ Ke7 Qh3 Rd6 Rb4 Qd7 Ba4 Ba8 Rb5 R6d4 Rc6 Qe6 Rdd6 Qd5+ Kg6 Bd1 Rc8 Be2 Bc6 Bd1 Kh7 Kf7 Rc7+ Ne7 Kh6 Kg8 Qh5 Nc8 Qh4 Be7 Qh3 Kf7 g8B+ Kf8 Bh7 Bf6 Kg6 Nd7 Kh6 Na7 Rc5 Qe6 Rh5 Qd5 Rh4 Nc5 Rf1 Be2 Bh5 Bg4 Rf4 Bc8 Bf3 Bg4 Rf5 Bh5 Rdxf6+
R1Bq1bRB/1r3R2/nP3pN1/bN3PR1/Qr6/nR2nn1k/8/RQ1b3K b - - 0 1 legal: proof: b4 b5 d4 c5 bxc5 d5 c4 g5 cxd5 e5 dxe5 b4 h4 gxh4 a3 Ne7 axb4 Ng8 b5 Qc7 Be3 Qd6 Bc1 Qd8 g4 Ke7 f4 a5 Kf2 h5 Kg2 a4 e4 a3 c6 a2 f5 Nf6 c7 Na6 e6 Nd7 e5 Rh7 b6 Rb8 g5 Rb7 g6 h3+ Kh2 h4 g7 Rh5 g8R Rg5 Be2 Rg4 Nf3 Rb4 Rhg1 f6 Kh1 h2 Qc2 Ndb8 Ba3 Bd7 c8R Nc7 R1g5 Nb5 Nc3 Na6 Qb1 Be8 Bd3 Bh5 Ra8 Bg4 Bc1 Na3 Bb5 Bh5 Bd7 Bg4 Nb5 Bh5 Kg2 h1N Bc8 h3+ Kg1 Ng3 Nh4 Ne2+ Kh1 h2 d6+ Ke8 e7 Kf7 e8R Ng1 d7 Bd1 Ng6 Nf3 Rh8 Kg7 Rg8+ Kh6 e6 Nc4 e7 Na3 Rg1+ Kh5 Bh6 Bb3 Bg7 Bd1 Re1 Kg4 Re3 Kg3 Rb3 Kh3 Bh8 Kg4 Kg2 h1N Rg7 Ng3 Rf7 Nf1 Kh1 Bh6 Rg8 Bf8 e8R Kh3 Re2 Ne3 Rg2 Qc7 d8Q Qd7 Qe8 Qd3 Qb2 Qd8 Rc1 a1B Qb1 Bc3 Rg5 Rf4 Qee4 Ba5 Qa4 Rg4 Qa2 Rf4 Ra1 Rb4 Qb1
bN1r1N1r/7b/3B2nq/b1n2BBb/2P3RB/3P3Q/1RpN4/NqkBK3 b - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 b3 f5 exf5 b5 axb5 d5 c3 d4 cxd4 c4 d5 c3 Bc4 Qc7 Bf1 Qc4 bxc4 Ba6 Qa4 Bb7 Qd1 Bc8 g4 Kd7 f4 Kd6 b6 Kc5 b7 Kd4 g5 e5 g6 a5 d6 h5 g7 a4 d3 c2 f6 e4 f7 a3 d7 a2 d8N h3 f5 e3 f6 e2 Rh2 h4 Bg5 Ne7 g8B Ng6 Nd2 Kc3 Bh7 Kb2 Nb3 Na6 b8N Bf5 Nf3 Bb4+ Nfd2 Ba5 f8B Nc5 Rg2 h2 f7 h1B Bfe7 h3 f8B h2 Rg4 Bf3 Ne6 h1B Bd6 Bhg2 Bfe7 Rd8 Rc1 a1Q Nf8 Qb1 Na1 Bh1 Bh4 Bhg2 Beg5 B5e4 Rg3 Bh5 Rg4 Bh1 Bg2 Bf5 Bf3 Bg2 Kf2 Bh1 Qf1 e1Q+ Kg1 Qe4 Kf2 Qc6 Qh3 Qa6 Re1 Be4 Bd1 Kc1 Rf1 Bf5 Ke1 Bd5 Nbd7 Rac8 Nb8 Ba8 Bdg3 Qf6 Bd6 Bfe4 Rf5 Qg7 Rf7 Qh6 Rb7 Bf5 Ne6 Rh8 Nf8 Rd8 Rb2 Ne5 Bg8 Bh7 Be6 Ng6 Bf5
B3NB1n/rNr4q/BK4n1/B4Pqb/q3p2Q/N1R1N2q/2P2B2/kR2b3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 g5 h4 d5 f4+ Ke4 a6 d3 h6 d4 h5 g4 a7 g3 f6 d2 h7 g2 b6 d3 f5 Qe8 h6 Bd7 b7 e5+ Kb6 Kd4 f7 e4 Qh5 d1Q Na3 Kc3 Be3 Kb2 Nh3 g1Q Qh4 d2 Nf4 Qf3 Ng2 d1Q Rh3 Bb4 f8B Be1 Bf2 Ne7 Ne3 Nbc6 b8N Qg5 Ba6 Ne5 Nc6 Nf7 Na5 Ng6 Nb7 Ba4 Rc1 Qdd7 Rb1+ Ka2 Rg3 Rc8 a8B Rc7 Rh3 Bb5 Rg3 Be2 Rh3 Rg8 h8B Rg7 h7 Qfg4 Rf3 Qh3 Rg3 Bh5 Rf3 Rg8 Bc3 Rg7 h8N Qde7 Ba5 Qa4 Rb3 Ka1 Rc3 Nfe5 Nf7 Nh8 Nfd6 Neg6 Ne8 Qf7 Rg3 Qg8 Rg1 Qh7 Nd8 Ra7 Nb7 Rc7 Nb1 Bd2 Rd1 Be1 Na3+ Kb2 Rb1+ Ka2 Rb4 Ka1 Rb1+
1R1rnK2/2Q2n1r/1BN2RR1/P3b3/2PqBp1N/2qnq2r/1Bk1R2B/4B3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 b4 axb4 d3 e5 fxe5 c4 dxc4 Rh6 Bf4 Rh7 Bc1 Rh8 Kd2 b5 Nf3 b3 Nc3 b2 Bg2 b1N+ Ke1 b4 Bh3 b3 Bf1 b2 Ng1 Bb7 Ne4 Bc6 Nd2 Bb5 Ne4 Ba4 Nd2 Bb3 cxb3 Qe7 Bh3 Qg5 Bf1 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 d5 a4 g5 e4 d4 h4 d3 h6 f5+ Kh5 g4 Kg6 g3 a5 g2 b4 Rh7 b5 Nc3 h5 b1Q b6 Ne2 b7 Na6 b8B Qb3 Ndf3 d2 Nd4+ Ke7 e6 Qc7 e5 Nc5 Ngf3 g1Q+ Bg2 Nb7 Nc6+ Ke8 e7 Kd7 e8R Re7 e6+ Kd6 h7 Kc5 h8B Qd8 h6 Qd7 h7 Bg7 Nh4 Qh3 Bh2 f4 Rb8 Qge3 Be4 Qdd4 Bb2 Rd7 e7 Nd8 e8R Nc1 Qa4 Nd3 Rag1 d1R Qb3 Nh6 Qb7 Ng4 Qc7 Be5 Rf8 Ra6 Rf6 Nf7 Kg7 Ra7 Bc3 Rd8 Bd2 Ra1 Rg2 Ra3 Rhg1 Rc3 Re2 Rb7 Na7+ Kb4 Nc6+ Kb3 Rgg2 Kc2 Rg1 Rd7 Kf8 Qhg3 Bg7 Qe1 h8B Qc1 Rh6 Nf6 Rgg6 Ne8 Bf6 Rcb3 Bd8 Qca1 Rf6 Qac3 Rhg6 Ra7 Qb7 Rd6 Bb6 Rd8 Qd7 Nh6 Qd6 Rh7 Qc7 Nf7 Nf3 Rb1 Bc1+ Qcd2 Bg1 Qc5+ Rd6 Bf6 Nh4 Qd5 Bb2 Rf1 Bg7 Rf3 Bh2 Rh3 Bh8 Bd4 Be5 Bc3 Rdf6 Qd7 Bd6 Be5 Bb4 Qdd4 B4c3 Kd1 Bb4 Qc1 Be1 Qcc3 Bd2 Kc2 Be1+
b4r1q/rr5p/PRKP3k/1rQ3R1/2R1B3/r1QBN1bR/4Rnb1/5R1N b - - 0 1 illegal: No possible last move, all moves rejected
2n4N/1NnRN1Nq/6B1/2nRb1qR/q1N4q/2rQ1Pp1/2P1KBk1/1b2R3 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 a4 Qb6 axb5 a4 Qd2 Ra7 Qd1 Ra5 bxa5 Qd8 h4 Kf7 f3 Kf6 h6 Ke5 h7 g5 b6 d5 b7 g4 h5 a3 a6 a2 h6 d3 a7 d4 a8N d2+ Kf2 Kf4 f6 e5 f7 d3 Rh5 e4 Rg5 Bg7 f8N Na6 b8R Be6 Rgb5 Ne7 Rd5 Nc8 Na3 Be5 Nc7 Qg5 Rb7 Nc5 Nd7 Bf7 Rab1 a1Q Nc4 Qa4 Ne8 Be6 Be2 e3+ Kf1 Kg3 Nh3 Rf8 h8R Kh2 h7 g3 Qe1 d1N Nf4 d2 Bd3 Nc3 Ng6 d1Q Ng7 Nb5 Ne7 Nc7 Bg6 Qd4 Qd1 Qdh4 Ke2 Kg2 Qd3 Bg8 Bb2 Rf6 Bd4 Rc6 Rh1 Bf7 Re8 Be6 h8N Bf7 Ke1 e2 Bf2 Qh7 Rh5 Qh4 Kd2 Be6 Ke3 e1Q+ Qe2 Qeh1 Qd3 Qg5+ Ke2 Qhh4 Ra7 Rb6 Rb7 Rb3 Ra7 Rc3 Rb7 N5a6 Nc5 Bg8 Ra7 Bf7 Nb7 Nc5 Rd7 Be6 Ra5 Bg8 Nb6 Ba2 Nc4 N5a6 Rad5 Nc5 Rf8 Bb1 Rf5 Qd4 Rh1 Qdg4 Re1 Q5h4 Rh5 Qhg5 Nba5 Q4h4 Nb7
K1RRq1Rb/4qN2/3R1r2/2P1n1rb/1kPQ1Bq1/R2B1Q2/2q2r1p/3R3N b - - 0 1 legal: proof: g4 c5 e4 f5 h4 b5 a4 g5 hxg5 f4 axb5 c4 g6 c3 g5 Nc6 dxc3 Nb4 c4 Nc6 c5 Nd4 f3 Nf5 exf5 Bb7 Bd2 Bxf3 Be3 Bb7 Bc1 Bc8 Ke2 h5 Kd3 e5 Kc4 Ke7 Kd5 a5 b4 h4 c3 f3 g7 f2 g6 h3 b6 h2 b7 a4 b8R a3 Qd2 e4 Qd4 e3 Bd3 f1R Nh3 a2 Bd2 e2 Nf2 e1Q Bf4 Ra5 Rb6 Nh6 g8R Nf7 g7 Ne5 Rd6 Qe8 Nd2 Rh6 Nde4 Rf6 Ng5 Qe3 Rd1 a1Q Nf7 Qa4 Ra1 Qe2 Ra3 Qac2 Rh8 Ba6 g8R Bg7 Rg1 Bb5 Nh1 Rf2 Rd1 Qe3 Be4 Be2 Bd3 Qb8 Rd8 Bh5 Rhg8 Bh8 Rc8 Rg6 Rgd8 Ra6 Rg8 Rg5 Rgd8 Qc7 Rg8 Qd8 b5 Qe8 b6 Qee2 Rdc6 d6 f6+ Kd7 b7 Qg4 b8R Qge6+ Ke4 Q6e7 Nh6 Ke6 f7 Kd7 f8Q d5+ Ke3 Rb6 Nf7 Ra6 Rh6 Rf6 Rd8+ Kc6 Rhg6 Qb3 Rba8 Qc4 Rac8+ Kb5 Rh6 Rff5 Rhd6 Rf6 Be4 Qa4 c4+ Kb4 Bd3 Qad7 Qa1 d4+ Ke4 Qg4 Kd5 Nd7+ Kc6 Ne5+ Kb6 Re6 Bh7 d3 Qd4 d2 Bd3 Rf6 Ka6 Qee6 Ka7 Q6d7+ Ka8 Qde7 Rf1 d1Q Re1 Qde2 Rd1 Qc2 Qg7 Rh6 Qf6 Rhg6 Qf5 Rh6 Qfe4 Rf6 Qf3
K6B/n3Bq2/n1r1b3/1p2R1Rn/1NRNq1PQ/N2RRN2/1k3q1P/5rn1 b - - 0 1 legal: proof: f4 d5 d4 a5 e4 g5 exd5 h5 b4 h4 bxa5 h3 c4 Bg7 c5 Be5 fxg5 Nf6 g3 Bd6 cxd6 Ng8 Bg2 hxg2 Ke2 Kd7 Kd3 e5 Ke4 c5 a4 b5 g6 f6 a6 c4 g4 c3 g7 c2 a5 Ra7 Bb2 c1Q Ra3 Qc2+ Rd3 Bb7 Qe1 Nh6 g8R Bc8 Rg5 Qd1 Nf3 g1N Na3 Qb6 Qh4 Rc7 a7 Qb3 a8R Nf5 a6 Rc6 a7 Na6 Rb8 Qc4 a8R Ne7 Bc3 Rf8 Ba1 Bb7 Re8 Nc8 Bc3 Na7 Rac8 Qa2 Ba1 Qf2 Bb2 Qc7 Re3 Nh3 Rd1 Ng1 Rdd3 Rf7 Kf5 e4 Re5 Ba8 Kf4 f5 Ba1 Rb6 Bb2 Qb7 Rc4 Rc6 Bc3 Qc7 Ba1 Bb7 Bc3 Bc8 Bb2 Kd8 d7 Qb7 Ba1 Kc7 d8N Kb6 d6 Ka5 d5 Be6 d7 Rf8 d6 Qc7 Rcc5 Ka4 Bc3 Kb3 Rc4 Bf7 Ne6 Qb7 Re2 e3 d8B Bg8 Re1 Qf7 d7 e2 Be7 Ka2 d8N Kb3 Rc1 e1Q Nd4+ Ka2 Ree3 Qee2 Ke5 f4 Re1 Qc2 Bcb4 Kb2 Bf6 Qa4 Bh8 Qac2 Be7 Qce2 Nd2 f3 Ke4 Qg2 Ke5 f2 N2f3 f1N Ke4 Qef2 Ke5 Rg6 N8c6 Ng3 Nb4 Nh5 Ke4 Rc6 Ke5 Rcc8 Kd6 Rc6+ Kd7 Bh7 Ree5 Be4 Ree3 Bd5 Ne1 Qe4 Nef3 Rc5 Kd6 Rcc8 Kd7 Be6+ Kd6 Nc7 Kc5 Na6+ Kb6 Rc6+ Kb7 Qfh7 Nd5 Qe1 Nd2 Rf1 Ka8 Qf2 N2f3 Qf7 Nb4
2N5/Brnq2Q1/R2rpKNR/3PR3/N2q1R1N/1n4Pb/R2q2r1/2q2Bk1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g3 Bg7 g4 gxf4 Ra5 Bf6 Ra1 Bh4+ Ke2 Bg3 hxg3 Nh6 Ke1 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 a5 f6 h5 d6 f3 f7 f2 f8N a4 g5 a3 d7 a2 b6 h4 b7 h3 g6 h2 g7 Na6 b8R Ra7 Qg4 Nh6 g8N Rb7 Nf3 Nf5 Nh4 Nd4 Nfg6 Rh6 Nc3 Nb3 Ra8 c6 d3 Nc7 Ra6 Qe8 d8R Qd7 Rb1 a1Q Rf8 Qa5 Ra1 Qb6 R1a2 Qa7 Be2 f1Q Rf4 Qg2 Bf1 Qd2 Qg5 Qb6 Qf6 Qa7 Qg7 Qb6 Bh3 Qa7 d4+ Kc4 d5+ Kd3 Bf1+ Ke3 Na4 c5 Ra1 c4 Ra2 Nd4 b4 c3 b5 c2 b6 Nb3 Ba3 c1Q Bd6 Ne6 Bb8 Nc7 Nf8 Rd6 Nfg6 Qa8 Ba7 Qb8 Rg1 h1R Rg2 Qa8 Rh2 Rg1 Rh1 Rg2 Rh3 Rb8 Rh2 Qac6 b7+ Qb6 Rh3 Qd8 Rh1 Bh3 Rh2 Qd7 Rh1 Rf8 b8R Rf7 Rf8 e6 N8e7 Qbc5 Nc8 Qb6 Re4+ Kf2 Rh2 Kg1 Re2 Re7 Rf4 Qbe3+ Kf6 Qed4+ Re5 Re8 Ncb6 Rb8 Nc8 Rb7 Nf5 Bg4 Rh6 Bh3 Nfh4
K4N2/N1pnqn1b/3PNn1P/1qB1Q1Rk/1B2R3/1BB1qN2/5N1r/b4q2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Ke3 g5 Ke4 e5 b4 a5 f4 g3 h4 g2 d4 a4 b6 a3 b7 a2 b5 g4 d6 g3 Kd5 e4 h5 e3 b6 e2 f6 e1Q h6 Kg6 f5+ Kf7 d7 Qde7 d8N+ Ke8 f7+ Kd7 f6 Q7e3 Nc3 Ba3 f8N+ Ke8 f7+ Ke7 Ne4 Ra4 Bd2 Rh7 Qe2 Bh3 Nf3 g1N Nf2 Kf6 Nde6 g2 Bc3 Nd7 Kc6 Bb2 b8N Bf5 Kb7 Rg7 Nc6 Nh3 Rg1 Rg5 Na7 Bh7 d5+ Kf5 Rd1 a1Q Ka8 Qb1 b7 Ngf6 b8B Rh4 Rd4 Ba1 Re4 Qb5 Qb2 Rhh5 Bc4 Qf1 Ba2 Qec5 Bb3 Qe7 Nc8 Rh4 Ba7 Rhh5 Bc5 Rh4 Rh1 g1Q Na7 Qg3 Rg1 Qf4 d6 Q4c1 B3b4 Qe3 Ng6 Rhh5 f8B Rh4 Bg7 Rhh5 Ngf8 Rh4 Nd8 Rhh5 Nfe6 Kg6 Qe5 Rh4 Nf8+ Kh5 Nd4 Nf4 Nf3 Rh2 Nde6 Ng6 Qb2 Nh8 Qe2 Ng4 Bgc3 Nf7 Qb2 Ngf6 Qe2 Qd4 Qe3 Qd2 Qf4 Qdc1 Qe5 Qe3 Rxg5+
B2b4/qk4Br/2N2Bn1/qN1K1P2/QN6/2p1pn2/1rP1BqR1/2NbRB2 b - - 0 1 illegal: No possible last move
5qRR/qb2k1B1/B2Q2PQ/BBr2pr1/N2B2nn/1B3q2/1Pb2pN1/2K5 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 h4 g5 hxg5 exf4 Na3 a6 Nb1 Bc5 Nf3 Bb6 Ng1 Ba7 b6 Qf6 bxa7 Qd8 g4 c5 e4 h5 d4 f5 Kd2 h4 g6 h3 d6 h2 d7+ Ke7 d5 c4 d6+ Ke6 g5 a5 e5 a4 g7 a3 g6 a2 Nh3 f3 Nc3 f2 Na4 Nh6 g8B+ Nf7 Kc2 c3 Be3 Rh4 Ba6 Nc6 Kc1 c2 Bd4 Qf8 d8B Rg4 d7 Bb7 Ba5 Ke7 e6 Nh6 Nf4 Rg5 Ng2 Rc8 a8Q Ng4 Qd2 Rc7 Qb8 Nce5 Qf4 Rc5 d8B+ Ke8 e7 Nf3 Qbc7 Nh4 Bb3 Be4 Qcd6 Bd3 Rd1 h1B Bac3 Be4 Bda5 Bd3 Rb1 a1Q Bg7 Be4 Bcd4 Qa2 Rd3 Qa3 Rh3 Bd3 Ra1 Be4 Bg8 Qf3 Bb3 Bd3 Qb8+ Kd7 e8B+ Ke7 Beb5 Qb7 Ne3 Qa7 Qh2 Bb7 Ng2 Nf3 Rh6 Bde4 Qh5 Nh4 Rh8 Bd3 Qh6 Bde4 Kd2 Bd3 Rh1 Bde4 Rg8 c1Q+ Ke2 Qc3 Kd1 Bc2+ Kc1 Bc6 Qb6 Qf3 Re1+ Kd6 Re8 Kd7 Rc8 Ke7 Rh8 Bb7 Qc6 Qf7 Rcg8 Qf8 Qd6+
RrRn4/P1B1N3/R3q3/2pb4/P2n2R1/1QRb1kq1/Kp3R2/1rrB1NQ1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 g4 g5 f4 gxf4 h4 Bh6 g5 Kf8 g6 Bg5 hxg5 Ke8 d4 Kd7 Kd2 Kd6 Kc2 h5 Kb2 e5 g7 b5 f6 c5 g6 f3 f7 h4 f8R e4 a6 h3 a7 b4 Rh2 f2 Ne2 b3 Nf4 e3 Be2 f1Q Nd2 Qg2 Qg1 Bb7 Nf1 Qdg5 Rc8 Qe4 Bd1 Qh5 Re2 Nh6 g8R h2 g7 h1B Ng6 Nf7 Ne7 Qhg4 a4 Qeg2 Ra3 Ba6 Kb1 b2 Ka2 Bd3 Rc3 Qe6 Rc6+ Kd7 Ra6 Qg3 Rc8 Rf8 g8R Nd8 Rg4 Nbc6 Bd2 Kd6 Be1 Qge5 Bg3 Rb8 Bf4 Rb4 Bg3 Rc4 Bh2 Qg3 Ra8 Kc7 d6+ Kb7 d5 Nd4 d7 Bg2 d6 Bd5 Rec2 e2 Rd2 e1R Re2 Nf7 d8Q Rh8 Qa5 Rb8 d7 Nd8 Qb4+ Kc7 Ra3 Rc1+ Qc4 Kb7 Rc3 Kc7 Qb3 Rb1 Ra5 Kd6 Ra6+ Rb6 Rg2 Ke5 Rd2 Rb8 Rdc2 N8c6 d8R Rc1 Rc8 Nd8 Rg6 Kf4 Re2 Kf3 Rg4 Qh3 Bc7 Rb1 Bc2 Rec1 Bd1 Qg3 Rf2#
2n5/q2RRr2/b1KR3Q/Nr1R1PQR/3BB3/P3Nr1n/bR2pp2/1r4k1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 g4 f5 f4 h5 gxh5 a5 e3 Bg7 b3 Be5 b4 axb4 fxg5 f4 Na3 f3 Nb1 Bf4 exf4 Ra3 Nh3 Ra7 Ng1 Ra8 Kf2 Kf7 Ke3 c5 Ke4 b5 h4 e5 d4 f2 f5 c4 d6 c3 Kd5 b3 g6+ Kf6 h6 c2 h7 b2 g7 b4 h5 e4 a3 e3 h6 Kg5 d7 Kf4 Bd3 Kg3 Nf3 Kg2 Ne1+ Kg3 Ra2 e2 Be4 b3 Be3 c1R Ng2 Rc7 Qg1 Nc6 Nd2 b1B Nc4 b2 Na5 Qg5 d8R Bb7 Qh2+ Kg4 Rd1 Qf6 Qf4+ Kh3 Qg5 Kh2 Kc5 Ba6 d5 Re7 d6 Raa7 d7 Nb4 Rd5 Rb7 Bd4 Qf7 Ne3 Nd3+ Kc6 Nf4 Re8 Rb4 d8R Rb5 R8d6 Ra7 Ra1 Ba2 Rb1 Ra8 Ree5 Qa7 Ree6 Rf8 Re8 Nf6 g8R Nd7 Rg7 Nb6 Rgd7 Nc8 Ree7 Rf7 Rc1 b1R Rc2 Re1 Rb2 Rd1 Qg6 Rg8 h8Q Nh3 h7 Rb1 Qh5 Rg2 Qg5 Rg3 Qhg7 Rf3 h8R Kh1 Rh5 Kh2 Q5h6 Kh1 Qgf6 Kg1 Qfg5+
1Nn3q1/R1B1P3/1p4RN/b2P1Qbk/r1bK1b1B/2Np4/4N2N/2r2BBn b - - 0 1 legal: proof: f4 a5 g4 d5 c4 e5 fxe5 h5 b4 axb4 gxh5 Ke7 Bg2 Kd7 Bf1 Ke8 Nf3 c5 Ng1 Ra6 Ba3 Rc6 Bc1 d4 d3 Qd5 cxd5 c4 Bf4 c3 Bc1 Rc4 dxc4 Ke7 Nd2 Kd8 Nb1 Ke8 Kf2 f5 a4 Kf7 h4 g5 e4 c2 h6 Kg6 e6 b3 a5 b2 h7 f4 c5 b6 a6 f3 e7 d3 Ke3 f2 e8N g4 a7 g3 a8N g2 e5 Bd7 c6 Na6 h5+ Kg5 c7 Nc5 c8N Kh6 e6 Nb3 e7 Na5 Nf6 Bb5 Nd6 Kg5 h6 Nc6 Ne2 g1B Nf5 Bh2 Ng4 Kh5 Nc7 Bg7 Rg1 Bc3 Ra7 Nf6 Na6 Ne4 Nb8 Ba5 Nbc3 b1R Bb2 Bg3 Nh2 c1B+ Qd2 Re8 h8B Bc4 h7 Rf8 Nh6 Rf4 Bg7 Bh4 h8B Bg5 Be5 Ng3 Bhf6 Nh1 Bc7 Ra1 Bh3 f1Q Rg4 Qe1 Bf1 Qh4 Rg3 Qg4 Ba3 Qc8 Bc5 Qg8 Rg1 Ra4 Rg3 Rf3+ Ke4 Bf4 Rg6 Bg5 Qe1 Bcf4 Bg1 Rg3 Qf2 Rg2 Ra8 Na7 Kd4 Nc8 Ra7 Rg3 Qf3+ Rg4 Qe4 Rg3 Qf5 Re3 Nc1 Re1 N1e2 Rc1 Bfe5 Bd2 Bg3 Bf4 Bh4
3Rn1b1/1KR2B2/1NB3pr/NN1R2P1/1R3R2/3NqbQq/1pP1kq1b/4n3 b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 c5 g4 h5 d4 b4 dxc5 h4 e4 f5 exf5 Ra7 Bf4 Rb7 Bg3 Rb5 axb5 hxg3 Kd2 Kf7 Ke3 Kf6 Ke4 Kg5 Kd5 Kf4 h4 e5 f6 e4 f7 g2 b6 d6 h5 e3 b7 e2 g5 e1Q a6 g6 c6 b3 a7 b2 a8B Qde8 c7 Rh6 Qd3 Q1e2 Nc3 Rh8 h6 Q8e3 h7 Bf5 c8N Kg4 f4 Kg3 Ra4 Kf2 Nb6 Na6 Kc6 d5 b8N d4 Nh3+ Kf3 Kb7 g1Q Nb5 Nb4 Nc6 Qg3 Na5 Ne7 Nf2 Bh3 f5 Ng8 f6 Bd6 f8R Be6 f7 Nf6 Rd8 Qh3 f8R Bh2 Rd5 Bg8 Qb3 Qd2 Bc4 Nd3 Rb4 Ne1 Nd3 Qdf2 Rf1 Ke2 Rc8 Ne8 Rc7 Qfh4 Rf4 Qhf2 Nc5+ d3 Qc3 Qff1 Ba2 d2 Nd3 d1B Qe5 Qf2 Bc4 Be6 Ba2 Rg8 h8R Rg7 Qc3 Rh7 Rhf8 Bg8 Bc4 Nf6 Rfd8 Ne8 Rdf5 Qh5 Kc8 Qe5 Bf7 Rh6 Nc5 Kf1 Bc6 Qh3 Qg3 Qe3 Nd3 Bf3 Kb7 Ke2 Rfd5
1qNN3Q/qp1K2kB/2R1rq2/n1PNPp2/5R2/1BR3r1/N2nRrR1/7b b - - 0 1 legal: proof: f4 e5 fxe5 a5 b4 f5 bxa5 c5 d4 h6 dxc5 Nf6 g4 Ng8 g5 Be7 Bf4 Bf6 gxf6 Qe7 Bd2 Qd8 Bg5 hxg5 c6 d5 e6 Kf8 Kd2 d4 Kd3 g6 Kc4 g4 Kc5 g3 c4 d3 e4 g2 h4 d2 a4 g5 e5 g4 h5 g3 f7 Qe8 Kd6 Nh6 c5 Ra6 e7+ Kg7 f8N Qg6+ Ne6+ Kf7 e8B+ Kg8 Nc3 Qf7 Nge2 g1R Ra3 g2 Nd8 Qa2 Nf4 Kh7 Bc4 Ng4 h6 Qb1 Rh4 Nf6 Qh5 Rg8 Bg6+ Kh8 h7 Ra7 c7 Qd1 a6 Ra8 a5 Qe1 a7 Qc1 a6 d1Q+ Ke7 Bd7 c8N Ne4 Ra2 Bb5 Re2 Qa1 Rh2 Qa3 Na2 Rf1 Bd5 Nc6+ Kd7 g1Q Rh3 Qg2 Rc3 Bd3 Be6 Rf2 Bb3 Kg7 h8R Kf8 Qh1 Qgg1 Rh2 Qg5 Bh7 Qf6 Qf3 Rg3 Qh5 Kg7 Qe8 Re3 Nb6 Rc8 a8R Rg3 a7 Qa4 Rb8 Qa6 a8R Bc4+ Rd2 Bd5 Re2 Qd4 Ra7 Nd2 Rba8 Qa3 Ra6 Qda4 R8a7 Bh1 Rg2 Ra8 Nc8 Qa5 Qe6 Qb6 Nd5 Qc7+ Ke8 Qb8 Kd7 Qa4 Qe8 Qa5 Rb6 Qa4 Ra5 Ra6 Rb4 Rb6 Rf4 Qa3 Rb5 Qaa7 Rbb4 Na5 Rb5 Re6 Rb6 Rg4 Rc6 Rg3 Qh8+
2n1bN1b/5N2/r2q1npK/1B2RBpb/3BBP2/1B2RN1Q/3P4/n1kNb3 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 e6 cxd5 f6 dxe6 Ba3 g4 Bf8 g5 fxg5 h4 a5 h5 g6 h6 Ra6 Rh5 Rd6 Rh4 Rd7 Rh1 Rg7 hxg7 Bb7 Qa4 Ba6 Qd1 Bc8 e4 Ke7 Ke2 Kf6 Kf3 Ke5 b4 Kd4 e5 h5 b6 c5 b5 c4 e7 c3 e8B c2 b7 a4 e6 a3 e7 h4 b6 h3 Bg2 Kd3 Nc3 h2 Qf1+ Kd4 Bb5 a2 e8B Bh3 Bb2 c1N Nd1+ Kc5 Bd4+ Kb4 Bed7 Kb3 Bf5 Nd3 Ke4 Kc2 f4 Qd6 Nf3 Ne7 g8B Nd7 b8N Nc8 b7 Ne1 Nc6 Bg4 b8N Bh5 Nce5 Be7 Rb1 a1B Rb3 Kc1 Re3 Nc2 Nf7 Bc3 Qd3 Na1 Rhe1 h1B Qf1 Bd8 R1e2 Bb6 Re1 Nf8 Nd7 Nh7 Nf8 Bc5 Nd8 Bb2 Bb3 Rg8 R1e2 Rg7 Re1 Ra7 Nf7 Ra6 R1e2 Qb6 Ke5 Nf6 Nh2 Qd8 Bge4 Qd7 Qh3 Bg2 Bb7 Bc6 Nf3 Qc7+ Ke6 Bb6 Re5 Be8 Bbe4 Bc3 Bc5 Bd4 Re1 Bf2 Re3 Be1 Bd4 Nd7 Rd5 Nd6 Bc3 Bd4 Rc5 Bh8 Re5 Qc6 Bd4 Qc5 Ke7 Qb4 Ne6 Nf6 Kf8 Nd7+ Kg8 Nc8 Kh7 Qd6 Kh6 Nf6 Nf8
2B3q1/N1P1b3/2B1N2b/4PNRK/1rp3Q1/2bpkb1n/RNR5/1R1Rr2r b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 h5 g4 e4 gxh5 e3 b5 Qf6 a3 Ke7 fxe3 Kd8 e4 Ke8 e5 Qd8 c4 b6 c6 Ba6 c5 Qc8 c7 Nc6 Be3 Nb4 axb4 Qd8 c6 Bc8 Bc5 bxc5 Kf2 Ke7 Kf3 Ke6 Kg4 a5 h4 g5 e4 d5 b6 c4 h6 f5+ Kh5 f4 h7 g4 b5 g3 b7 f3 b8R f2 b6 a4 b7 a3 Nf3 g2 Nc3 g1B Nd4+ Kf7 e6+ Kf6 e5+ Ke7 Bg2 f1R Qg4 a2 Na4 Rf2 Nb2 Re2 Bf3 Bd7 c8B Re1 c7 Nh6 Rd1 a1B Rh2 Bc6 Rc2 Ra4 Nf5+ Ke8 e7 Kf7 e8R Be7 Rg8 d4 Rg5 d3 Ra8 Bd4 b8N Rb4 Ra2 Qg8 Bh1 Bg2 Nc6 Be3 Na7 Ba8 Bc6 Bb7 Qe2 Ng4 Rb1 Nf2 Qg4 Nh3 Rd1 Qg7 Rb1 Rf8 h8R Qg8 Rh6 Re8 Rd1 Rd8 Rd6 Rd7 Rd5 Ke6 Rb5 Ba8 Rg7 Bh6 Rg5 Bb7 Bg2 Bhf8 Na4 Ng1 Bf3 Bg7 Kg6 Bd6 h5 Rb1 h6 Bc3 h7 Be4 Rb4 Kd5 h8N Rf7 Rbb2 Bh6+ Kh5 Nh3 Nd4 Be7 Ne6 Rf6 Bh1 Rff1 Nf7 Rg1 Bg2 Rh1 Rb3 Rb2 Nd6 Rb1 Nf5 Rb2 Raa1 Rb1 Rba3 Rb7 Nb2 Rb4 Nf8 Kc5 Rab1 Kd5 Ra2 Kc5 Ng3 Kd4 Ne6+ Ke3 Bf3 Bf5 Ba8 Be4 Bc6 Bf3 Nf5#
n7/5NBN/1q4b1/2qpRB1R/Prkq3n/R6N/2KN1rPp/3RRQ1q b - - 0 1 illegal: No possible last move
2b2QRr/5B2/3Rn2B/p5RK/pBqPN3/1b3R1N/1rqR1qPB/2k2q2 b - - 0 1 legal: proof: e4 b5 a4 bxa4 d4 d5 c4 g5 cxd5 e5 h4 Bh3 d6 Nc6 hxg5 Nb4 f3 Nd5 exd5 e4 f4 Bc8 Ba6 Bg7 Bf1 Be5 fxe5 Qe7 Qf3 Qf6 Qd1 Qd8 Ke2 Kd7 b4 h5 b5 f5 g6 c5 b6 a5 g7 e3 Kf3 h4 b7 h3 b8B c4 Ba3 c3 Bc1 e2 Ra2 e1Q Rd2 h2 Nh3 f4 Kg4 c2 Nc3 f3 Ne4 f2 Bc4 f1B Qf3 Qf2 Qf8 Ne7 g8R Nf5 Rg5 Ng7 Rg1 Bd3 Rf1 h1Q Ba3 c1Q Bb4 Qe8 Bb3 Bc4 e6+ Kd8 d7 Qc2 Be5 Rb8 Ba2 Bb3 Bh2 Qf6 Rf4 Kc7 d8R Kb6 d6 Qef7 d7 Qf1 e7 Q7c4 e8R Ne6 Rf3 Qf2 Qh6 Qf5+ Kh5 Kb5 Rf8 Rb6 Rf6 Rb8 Rg8 Rb7 d8B Qff1 Bf8 Rb8 Bg7 Kb4 Bb6 Ka3 Bc5+ Kb2 Bb4 Kc1 Rg6 Nf8 Rd6 Ne6 Bf8 Qf4 Bg7 Qe3 Bf8 Qef2 Bg7 Rh7 Bf8 Rhb7 Qh8 Rh7+ Bh6 Rb6 Qg7 Rh8 Qf8 Qc6 Re2 Bd5 Bb3 Nc7 Be1 Q6c5 Ba2 Rb2 Bb4 Q5c3 Bc4 Bde6 Bd3 Bb3 Rd2 Qc5 Bb5 Q5c4 Be8 Ne6 Bf7
K1B1r2B/2N1R1RR/6n1/RrpBNQ2/5Pb1/p1k3PB/br5r/3Rrn2 b - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 g5 hxg5 b5 axb5 f6 e3 f5 Rh4 e5 Ra6 f4 Rh1 f3 Ra3 Qf6 Ra1 Qf4 exf4 Bh6 Nc3 Bg7 Nb1 Bf8 Be2 e4 Bd3 e3 Bf1 e2 Rh6 Bc5 Rh1 Be3 fxe3 Bf5 Kf2 Bc8 b4 Ke7 d4 Ke6 g6 Kd5 b6 e1R b5 c5 b7 a5 g7 h5 b6 h4 g3 a4 e4+ Kd6 d5 h3 e5+ Kd7 e6+ Kd6 e7 c3 e8B h2 Qc2 Re7 Na3 Na6 b8R Rh4 b7 Nh6 g8B Rh5 Bd7 Rf7 Ke3 f2 Ke4 Nb4 Bb2 Ng4 Nf3 Ne3 Bfh3 f1B Ne5 Nc6 Re1 Ra5 Ra8 Re7 b8R Bc4 Rb7 Rb5 Ra5 Nf1 Bdf5 Re8 Rg7 Ba2 Qb1 Bb7 Bc8 c2 Bf7 c1R Qc2 Kc7 d6+ Kb6 d7 Ne7+ Bd5 Ng6 d8R Rb1 Rdd7 Bc6 Rde7 Bd7 Rd1 Bg4 Bc3 R5b2 Nb5 a3 Nc7 Rb5 Bb3 Rh6 Kd5 Rb2 Qf5 Rhh8 Kd6 Rh4 Bd5 Rhh8 Rg1 h1R Kd7 Rhh2 Rh1 Rhe2 Bhg2 Re1 Rhh7 Rhf8 Bh3 Rf6 Nc6 Rfe6 Bf6 R6e2 Ne5 Rg2 Rgf7 Rgf2 Bh8 Rh2 Rfg7 R5b4 Ra8 R4b3 Rb8+ Ka5 Kc6 Rb5 Ra8+ Kb4 Ra7 Ra5 Kb7 Rb5+ Ka8 Kc3 Ra5
bBkN1b2/Kp1N2bN/3r2R1/4bNn1/2r3n1/1P1RPp2/3Q1nNQ/2NB4 b - - 0 1 illegal: Other
6Qb/1r1b1Nr1/2r5/B1bK4/1RP2k1B/2B1pr1r/n1pR3P/NN1BN1N1 b - - 0 1 legal: proof: e4 c5 a4 b5 axb5 f5 exf5 h5 c4 Nh6 g4 hxg4 b4 Qa5 b6 Rg8 b7 Rh8 b5 Nc6 b6 Qb5 d3 Ng8 cxb5 c4 Bb2 c3 Ba3 Na5 Bc1 Nc4 dxc4 Rh7 Ke2 Rh6 Ke1 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 a5 b8B e5 f4 g5 b7 g3 b6 g2 Kd5 d6 Be2 g4 Bc7 c2 b8B g3 b7 e4 Ra4 e3 Rb4 a4 Bd2 a3 Ba5 a2 Bf3 a1B Bc3+ Kf7 f6 Kg6 f5+ Kg5 f7 Ra6 f6 Bd7 Qd3 Rh3 Bd1 Kf4 Qg6 Rc6 Qg7 Be7 f8N Bb2 f7 Nf6+ Kd4 Ne4 Qg8 Ba1 Nh7 Bb2 f8N Ba1 Ba7 d5 b8N Bb2 Na6 Bc5+ Kd3 d4 B7b6 Ba1 Ng5 Bb2 Nfh7 Ba1 Bb2 Nc3 Nf7 Na2 Bc3 Bb2 Nhg5 Ba1 N1f3 g1R Ne1 g2 Bd8 Rf1 Ngf3 g1R Bh4 Rg7 Rg1 Rf2 Rg2 Rf1 Ng1 Rff3 Bg3+ Kg4 Ke4 d3 Re2 d2 Bh4 Bb2 Kd5 Kf4 Nc7 Ba1 Nb5 Bb2 Nd4 Ba1 Rg2 Bb2 Be2 d1R Rf2 Rd2 Bd1 Rd3 Rd2 Ba1 Bb2 Rb3 Bc3 Bb2 Ra4 Rb4 Nb3 Rb7 Na1 Rg2 Bcb4 Bh8 Bc3 Rg7 Rb4
2Kb3B/q5q1/kB1rRQ2/BpRRPp2/3B4/3b3q/1P1Rqq2/1NrNB3 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 d5 c4 f5 cxd5 Be7 g5 Nd7 a5 Nb6 axb6 Nf6 gxf6 Bb4 Bh3 Bf8 Bg4 hxg4 Kf2 Kd7 Kg3 c5 Kf4 a5 d4 g3 e4 g6 h4 c4 e6+ Kd6 f7 g2 e7 c3 e8R a4 h5 a3 h6 a2 h7 c2 b7 Kc7 Ke5 Kb6 b8R+ Ka6 d6 g5 d5 g4 d7 g3 Ke6 Bd6 f8B Bb4 e5 Bc5 d6 Bb7 Rh2 Ka7 Nh3 g1Q Rd2 g2 Rc8 Qd4 Nf2 Q8h4 d8B g1Q Kd7 Ka6 Bb6 Be4 Re6 Qh3 Qe1 Qgg2 Nd1 Qe2 Qh4 Bd3 Qf6 Qdf2 Rd8 Rg8 h8B Rg6 Be7 Ra7+ Kc8 Rh6 Ba5 Bb6 d7 Rg6 Bc5 Rc7+ Kb8 Rc6 Bd4 Rg1 Rc8 Rd6 Rc5 Bd8 Kc8 Rh1 Nbc3 Rf1 Rb1 a1Q Rd5 Be7 d8B Qa2 Bdc7 Bd8 Ra1 Qa3 Nb1 Qc5 Ra3 Qa7 Rc3 Rh1 Bcb6 Qg7 Ne3 Qa7 Rcc5 Rg1 Rd1 Rh1 Bcd2 c1Q Bdb4 Qc3 Rd2 Rc1 Nd1 Qc4 Bdc3 Qcg4 Bd4 Qg6 Rdc2 Qg5 Be1 Qgg7 Rd2
2n2b2/r1BRR1n1/2b1BBpQ/2PR1N2/1B1N2K1/1P3B2/qp2p3/1rr3kR b - - 0 1 legal: proof: d4 a5 g4 c5 e4 f5 exf5 h5 gxh5 a4 b3 b5 Ke2 cxd4 Kd2 b4 Ke1 Qb6 bxa4 b3 a5 b2 Nd2 Ba6 Nb1 Qb3 axb3 Bc8 Ke2 Kf7 Kf3 Kf6 h4 Ke5 c4 d5 f6 g6 h6 e6 f7 d3 h7 Kd4 h5 d2 h6 e5 a6 Bd6 f8R Ra7 Rf7 Bf5 Ra5 Ra8 a7 Be6 Re7 Bf5 Ne2+ Kd3 Na3 d4 Bh3 Be6 Rd5 Nc6 Nb5 Nf6 Ng3 Rhc8 h8B Bd7 h7 Ne8 Be6 e4+ Kg4 e3 f4 e2 f5 Ke3 f6 Kf2 f7 d3 f8B Ng7 Nd4 Rc7 Qc2 d1R Bf4 d2 Ngf5 Rb1 Qc1 d1Q Be5 Rac8 a8B Na7 Qh6 Bc6 Rd7 Ba3 Bb4 Qd2 Bb7 Ra8 Re7 Nc8 Rdd7 Ra7 Rh5 Ba4 Bf3 Kg1 Bg3 Rc5 Bc7 Bc6 Rg5 Nh5 Bf6 Ng7 h8R Qd3 Be1 Qc3 Rh5 Qa5 Rhd8 Bb4 Rd5 Qa2 R8d7 Rb5 Rh4 Bd6 Bb4 Rc5 Re8 Bf8 Ree7 Rca5 c5 Ra4 Be1 Rc4 Bb4 Rcc1 Rh1+
NNRn1b1R/2NpP2n/1R4B1/K1N1rB1P/5r1N/3RqQ2/n3pb1p/1k6 b - - 0 1 illegal: No proof kernel
5Q1N/1B1NRr2/2q3pN/5P1R/3B1nK1/3N2pR/2b1P1pR/r1rNn1kn b - - 0 1 illegal: Other
5kqN/5B1R/p2NrR2/qN1bPBR1/r1PK3n/ppn5/2R2r1N/3N1Q2 b - - 0 1 illegal: Other
1r2q3/K1B2Pk1/nP4R1/qN1b4/2NQ2N1/N3p1b1/rp1R2pB/1RR3bN b - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 f5 exf5 c6 a4 Qa5 axb5 Kd8 b6 Ke8 b7 Qd8 c4 Rh7 b4 Qa5 d4 Nh6 c5 Ng4 Bb5 Nf6 d5 Ng8 Bf1 Qd8 b5 Rh6 b6 Rh8 Bb5 cxb5 Bb2 Rh6 Bc1 Nc6 dxc6 Rh8 Kd2 Kf7 Kc3 g5 Kb4 d5 Ka5 e5 Ka6 e4 h4 g4 f4 g3 f6 g2 h6 d4 c7 b4 h5 b3 h7 d3 c6 d2 h6 Qe8 f5 Bb4 Nh3 Bc5 Na3 Kf8 f7 Bf2 Rb1 Bh4 Nf2 Be6 c8N Qd8 b8B Nf6 c7 Nd7 Nd6 Ne5 c8N Bg5 Bc7 Nc6 Ndc4 Bf4 N8d6 Qe8 Ndb5 Bg3 Re1 Bd5 Nh1 Rg8 h8N e3 h7 Kg7 f8R Bf2 Ng6 Bg1 Qg4 d1Q h8R Qd2 Rf6 Qa5+ Kb7 a6 Qd4 Rf8 Nge5 Nb4+ Rc6 Rb8+ Ka7 Rf7 Rch6 Rf6 Bb2 Rc6 Nd2 Rc2 Ndc4 Rf2 Ba1 Ra2 Rd6 Qa4 Rd8 a5 Rec1 Na6 Rh6 Qb4 Re6 a4 Rf6 Qc3 Ng4 Qa5 Nc2 a3 Bc3 Rc8 Be1 Rb8 Beg3 Rb2 Rdd6 a2 Bh2 a1B N2a3 Ra2 Qb2 Bb7 Rf8+ Kh7 Rd2 Bd5 f6 Kg6 Qe5 Kh7 Qf4 Be5 Qd4 b2 Rg8 Bf2 f7 Beg3 Rg6 Bg1 Rf6 Kg7 Rg6+
2N2Rq1/3NpB2/n1Q2nRQ/3B1PKN/2r2NN1/1k2P3/4p1p1/n1N1r1qb b - - 0 1 illegal: No extended proof kernel
1Nr1B3/RqpBb3/n1R5/k7/RnqP1K1p/Nn5R/1pQQPR2/1R5r b - - 0 1 illegal: No possible last move
3K1Q1q/b7/3RPp1q/1Pp1q1QQ/BQk2B2/1N3QRN/rr2pQ2/n6r b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 g5 d4 b5 h4 gxh4 a4 e4 axb5 Bf5 c4 Bg4 d6 Nc6 c5 Ne5 fxe5 Kd7 c6+ Ke6 d5+ Kf5 Kd2 Kg6 Ke1 Bd7 cxd7 Qe8 Ne2 Qc8 Ng1 Qd8 Ke2 Kf5 Ke3 h5 Kd4 a5 Kc5 c6 b4 h3 g4+ Kg6 e6 Kf6 b6 Ke5 b7 h4 b8Q e3 g5 h2 g6 h3 g7 f6 Nd2 a4 Nb3 a3 Qf3 a2 Bb5 e2 Bf4+ Kf5 Rd1 a1Q Ba4 Qc8 Kb6 c5 d8Q Qe5 d7 Nh6 g8Q Bd6 Qde8 Ng4 d8Q Ne3 Qf2 Ke4 Qh5 Ra7 Qdf8 Nc2 Qgg5 Na1 Qa8 Bb8 b5 Rhh7 Rd3 Rhd7 Rg3 Qe8 Qb7 Qg6 Kc6 Qh6 d6 Ra5 Qa8 Ba7 Qb7 Rd8 d7 Ra8 d8Q Qh8 Qbb8 Ra6+ Kd7 Kd5 Kc8+ Kc4 Qa5 Rd6 Qae1 Rd2 Qff3 Rb2 Qef2 Bb6 Kd7 Ra6 Qbb7 Ba7 Kd8 Ra5 Qfg4 Qh6 Nf3 Ra6 Rd1 h1Q Ng1 h2 Rd6 Qh8 Nh3 Qc1 Nd4 h1R Qbf3 Ra5 Bc2 Raa2 Ba4 Qc2 Nb3 Qg6 Q4f5 Qgh7 Qb1 Q7g7 Qbe1 Qgh6 Qb4+
N7/1RK2PB1/4p3/1Rp1NkQB/N1N2P2/1p3R1q/b1bR3r/bN1r1q1q b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 Nc6 h4 Nf6 e5 Nd4 exf6 Ne6 Qc2 Qd7 Qd1 Ng5 hxg5 Qd8 Ke2 Kd7 Ke3 b5 Ke4 c5 Ke5 h5 d4 g3 a4 e6 g6 h4 g7 g2 g8R h3 a5 h2 f7 b3 f6 b4 a6 b2 d6 b3 d5 Qe7 a7 Rh7 Qg4 Qd8 Qg5 Rh6 Nf3 g1Q Nfd2 Bb7 Rg7 Rc8 a8N Rh8 Be2 Qd1 Ra5 Rc7 Rf1 h1Q Nc4 Qg1 Rf3 Be7 f8N+ Kc8 Rb5 Bc6 Nd7 Qgf1 Ndb6+ Kb7 d7 Rh2 d6 Qh8 d8R Qhh3 d7 Be4 Rf7 Kc6 Na4 Bc2 Be3 Qh1 Bd4 Bf8 Re7 Qdf1 f7 Bh6 Rdb8 Rc8 R8b7 Rb8 Re8 Rd8 Rh8 Bf8 Rh4 Bh6 Rg4 Bf8 Rg2 Be7 Bd1 Bf8 Rd2 Be7 Nbc3 b1B Be2 Ba2 Nb1 Rb8 Bd1 Bd8 Bc3 Ba5 Bd4 Bc3 Be2 Rc8 Bd1 Rc7 d8N+ Kd7 Nc6 Ba1 Ne7 Kd8 Kd6 Rd7+ Kc6 Rd5 Bg7 Rd3 Qg3 Rd4 Ng6 Rd7 Nge5 Ke7 Rb8 Rd5 Kc7 Rd6 R8b7 Rd8 Bh6 Kf6 Bg7+ Kf5 Qg5+ Ke4 Rfd3 Rd5 Bh5 Rd4 Qh4 Kf5 Rf3 Rd8 Rdf2 Rd1 Rd2 Qd3 Qg3 Qdf1 Qg5+
bQR1r3/N1np3K/r3rNRB/8/2kpN2b/bQ1p2PN/P2r1N2/5B1N b - - 0 1 illegal: Other
2Q1NbB1/2nk4/r7/3pnr2/N4P1N/1p1BRBpP/2pKB1b1/3NrR1B b - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 e5 dxe5 b4 gxh5 Nc6 c4 Nb8 e4 Ke7 e6 f6 e5 Qe8 Bb2 Qg6 Bc3 Qg5 Bd4 Ke8 e7 Kf7 Bb2 Qf5 Bc3 Qd3 Bb2 Ke6 Bd4 Kf5 e6 Kg5 Be5 fxe5 Ne2 Qd5 Ng1 Qb5 cxb5 Kf6 e8B Ke7 a4 g5 f4 c5 b6 c4 h6 g4 a6 b3 a5 e4 h7 d6 a7 g3 b7 c3 a6 e3 h3 e2 Nf3 c2 Bg6 Bg7 Nc3 Bd4 Nh4 Nh6 Bd3 Re8 h8N Rf8 Nf7 Ng4 Kd2 e1R Bfe2 Bf6 Rf1 Ke8 e7 Nd7 b8N Nde5 Nd7 Ng6 Nc5 Bg5 N5a4 Kd7 e8B+ Ke7 Bd7 Bb7 Be6 Rab8 a8B Bg2 a7 N6e5 Baf3 Rb6 a8B Nf6 Bae4 d5 Nd6 Bh6 Ne8 Kd8 Bg8 Ra6 Bh5 Nfd7 Rf3 Nc5 Rc1 Rh1 Bf1 Ne6 Re3 Nc7 Qg4 Bf3 Bfe2 Rf7 Qe6 Bf8 Qc8+ Ke7 Re1 Rf5 Nd1 Rg1 Rf1 Bh1 Rff3 Re1 Rf1 Bf3 Qb8 Kd7 Qb7 Bg4 Bh1 Bf3 Bg4 Bg2 Bgf3 Bh6 Qa8 Bf8 Qc8+
r2r4/1R3N1B/pKpR1r2/R1P1P2N/3n1q2/pN1p4/1k1R1QB1/Rq2Nb2 b - - 0 1 legal: proof: g4 e5 f4 g5 fxg5 e4 h4 e3 g6 Bh6 g7 Nf6 g5 Ng8 g6 Bg5 dxe3 Bf4 e4 Bd6 e5 Be7 a4 b6 Bd2 Nc6 Ba5 bxa5 b4 Bg5 hxg5 Nd4 Rh6 Ba6 Rh1 Nb5 axb5 Bc8 Kf2 Ke7 Ke3 Ke6 Kd4 d5 Kc5 f5 e4 h5 c4 h4 b6 h3 b5 d4 b7 d3 b8R f4 b6 c6 b7 h2 Qe1 a6 Na3 a4 Qf2 f3 Nc2 a3 Ne2 Rh3 Nc1 Qd6+ Kb6 Qd5 c5 Rh7 Bg2 Qd4 Nb3 Qd7 Rhd1 h1Q Rd2 Ne7 g8N Rh6 g7 Qf1 g6 Qh1 Nf6 Qe8 g8R Rh3 g7 Qb1 Nh5 Qf7 Rd8 Nf5 g8B Nd4 Bh7 Qf4 Rd5 Rg3 Rd8 Rg8 Rd6+ Ke7 e6 Rd8 e5 Bd7 Qe1 f2 Qe2 f1R Qf2 Kf8 e7+ Kf7 e8N Bh3 Rd5 Ke6 Nd6 Bg4 Nf7 Be2 Qe1 Rf3 Qf2 Bf1 Rd7 Rg8 Rbd8 Rh8 b8R Rg8 Rdc8 Rd8 Rdb7 Kd5 Rcc7 Kc4 Rd7 Kc3 Rd6 Rh8 Rg8 Kb2 Rg4 Rhd8 Rh4 Qh6 Re4 Rf6 Rf4 Nb5 Ra4 Nd4 Ra5 Qf4 Ne1+
b2B1N2/pNN1nq1q/K1Q1P1QP/3r1pRB/2NR3N/1p3r2/1p6/2Nk3r b - - 0 1 legal: proof: g4 c5 f4 e5 fxe5 h5 gxh5 c4 b3 cxb3 a3 b2 d4 b5 c4 b4 c5 b3 c6 Bc5 dxc5 Na6 Kd2 Qc7 Ke1 Nb4 axb4 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 Ke4 h4 g5 e6 f5 c7 d5 h6 g4 c6 d4 h5 d3 h7 g3 h6 d2 e7 Ke3 e8N g2 Rh5 Qd6 Rg5 Nf6 Na3 Ng8 Nc4+ Kf2 e4 Qd8 e5 Qe7 e6 Qd7 Be2 Qe7 Bh5 Nf6 Qg4 Ke1 Ra4 d1R Ne2 Bd7 c8N g1Q Ka6 Qh2 c7 Nd5 b5 Qg3 b6 Qc3 b7 Qf7 b8N Qf3 Nc8d6 Bc6 c8Q Qe3 Nc7 Qe4 Nb7 Ne7 Nd7 Rd8 Nf8 R8d3 h8N Rf3 Nhg6 Bd5 Qe8 Rd8 Nh4 Bc6 Bf4 R8d5 Nc1 Qe5 Be3 Qeg7 Bb6 Qh7 Qg2 Qfg8 Qg6 Qgf7 Nbd6 Ba8 Nb7 Rf1 Rb4 Rh1 Qf3 R5d3 Qc6 Rf3 Ncd6 Rdd3 Rd4 Kd1 Nc4 Rd2 Nd5 Rd3 Bd8 Rd2 Nc7 Rd3 Re4 Rd5 Rd4+
2nr3R/5n2/N2pBb1R/1NN1p1NB/2r1QP2/pnR1p1K1/3PR1n1/R2k4 b - - 0 1 legal: proof: c4 b5 a4 g5 axb5 g4 b4 g3 b6 Nf6 b5 Nd5 b7 Nf4 b6 Nd5 hxg3 Nf6 g4 Ng8 g5 Bg7 Ra2 Bh6 Ra1 Bf8 e4 d6 e5 f6 e6 Qd7 Bb2 Qb5 cxb5 Bd7 exd7+ Kf7 Be5 fxe5 d8R Ke6 f4 Kf5 Kf2 Ke4 g4 a5 g6 c5 g7 h5 g5 a4 g6 a3 Kg3 c4 Re8 c3 Nf3 c2 Be2 c1N Ra2 Nd7 b8R Nh6 g8R Ra4 b7 Nf7 g7 Rc4 b6 Nb3 Rbc8 e6 b8N Be7 b7 Bf6 Rh3 Nb6 Ng5+ Kd4 Rc6 e4 Na6 Nc8 b8N e3 Qh1 e5 Nc3 Rh6 Nc5 Rh8 Nba6 h4+ Kg4 Na5 Re6 Nb3 Rh2 h3 Rf8 Rg8 Kg3 Rh8 Rf2 h2 Bh5 Rg8 Re2 Rh8 N5a4 Kd3 Nb5 Rg8 Qf3 Rh8 g8B h1N+ Kg2 Nf2 Kg3 Ng4 Rc5 Nh2 Qh1 Nf3 Rfe8 Bg7 Rh6 Ne1 Qb7 Ng2 Rf8 Nd8 Be6 Bf6 Rc7 Nf7 Qc6 Rh7 Rh8 Rg7 Ra1 Kc2 Ra2+ Kc1 Qe4 Kd1 N4c5 Rg8 Nd7 Rd4 Rc3 Rc4 Ndc5 Rd8 Ra1+
n3nN2/Kp2BBQ1/P3RR2/3p1pB1/1R1k1nB1/P7/p1qNp1R1/b3r1R1 b - - 0 1 illegal: No proof kernel
rn4k1/bRrRPPq1/1R2bB2/3BNqQ1/2R3N1/7K/RNnq3n/1N3rb1 b - - 0 1 illegal: No possible last move, all moves rejected
1qkQ2RN/5n2/R4b1B/1n2rNnb/1bP1PK2/1RN1r1N1/3n2Br/2nR3R b - - 0 1 illegal: No possible last move, all moves rejected
1N4k1/1bR2Q1N/3qP3/nn3Nb1/B1Bn2Nr/RBr5/P1r2n2/2nbBKN1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 e4 h5 g4 c5 d4 b5 d6 f5 e6 b3 e5 b2 e7 Kf7 d7 h4 d5 h3 d6 f4 Na3 b1N Nc4 f3 Bd2 b4 Qb3 h2 Ne3+ c4 Nf5 Nc3 Rc1 Nh6 e8B+ Kg8 g6 Ra3 g7 Nc6 g5 Nb5 Be2 f2+ Kf1 Bb7 Be1 Qb8 d8N Na5 d7 Be7 Ne6 c3 d8N c2 Nc6 Qd6 Bc4 Bf6 Qf3 b3 Nb8 b2 Qf4 b1B Nf8+ Nf7 Qf3 Rh4 Nh7 Nd4 Ba4 Rc3 Qf4 Qd5 Qf3 Nd6 Qh5 N6b5 Qf3 Kf7 g8N Bd8 Ngf6 Be7 Kg2 f1R Ng4 Kg8 g6 Bg5 g7 Qe6 Qd5 Rf4 Bcb3 Re4 Kf1 Re2 Rd1 c1N Rd3 Bc2 Rg3 Rc8 Bc4 Bd1 Ra3 Rc2 Bcb3 Kf7 Qf3 R8c3 g8B+ Ke8 Qf4 Qc6 Bgc4 Qd6 Nhf6+ Kf8 e6 Qd8 Nh7+ Kg8 Qc7 Qd5 Nh3 Qd6 Qf7+ Kh8 Rg1 h1N Rg3 Nf2 Ng1 Qd8 Re3 Qd6 Re5 Qa6 Rc5 Qd6 Qh5 Kg8 Rc7 Qe7 Qe8+ Qf8 Qh5 Qd6 Qf7+
1b6/1b2qN1K/Bq2Rb2/Q2bnPNR/2B2nr1/2N4P/b1BkN1r1/1BB4r b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 Kf6 Kf4 e5+ Ke4 g5 a4 d5+ Kf3 b5 Kg4 e4 f4 d4 c4 e3 c6 e2 a5 e1B h6 d3 Kh5 d2 h7 g4 c7 b3 c5 g3 a6 b2 c6 g2 a7 b4 Nc3 b1B Qb3 d1B+ Nge2 g1R Qc4 b3 Qb5 b2 Ra6 Rg2 Qa5 Bb7 c8B Be7 c7+ Nc6 Rb6 Rb8 a8B Bg3 Be6 Bb3 c8B Qd7 Bc4 B1a2 Bd3 b1Q Bc2 Qd6 Be6 Rd8 Bc4 Ne5 Ba6 B3d5 Rc6 Kf7 f6 Ke6 f7 Nf6+ Kh6 Nh5 f8N+ Kf6 f5 Nf4 Bc4 Qb6 Ne6 Rdg8 Bb1 Rg4 Ng5 Neg6 Ba6 Ke5 Bc2 Bf6 Bb1 Rf8 h8N Qe7 Rd6 Bc8 Bc6 Bb7 Ba4 Rf7 Bac2 Rg7 Ng1 Kd4 Nhf7 Ne5 Bfc4 Rg6+ Kh7 Rh6+ Kg8 Rhh4 Re6 Rh6 Ba3 Ke3 Nge2 Rg6+ Kh7 Kd2 Rf1 Rg1 Rf2 Rh1 Rf3 Bh4 Rh3 Rg2 Bb2 Bg3 Rh5 Rg8 Nh3 Rg4 Ng5 Bf2 h3 Bc5 Ba4 Bd6 Bac2 Bb8 Bc1+
R1nnN1n1/5B2/Q2bB1q1/KNBP3N/4N2r/5bNn/BrkPR3/1n2r2q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 Kd6 e4 Ke5 b6 Kd4 b7 c5 b5 a5 g6 f5 g7 h5 e5 c4 b6 c3 e6 h4 e7 a4 e8N c2 g5 a3 g6 h3 Bg2 Kd3 Nc7 f3 Ne2 h2 Nb5 f4 N1c3 a2 Ba3 c1R Bc5 Nc6 b8N Qg5 b7 Bd6 Bf1 Bg4 Ne4 Nd8 Nd7 Rb8 Ndf6 Rh4 Ne8 Qh6 Rg1 h1N Rg2 Nf2 Rh2 Rb1 Rg2 Rb2 Qa4 Nh3 Qa6 f2+ Kd1 f3 Rh2 Ra8 b8N Ra7 Rg2 Re7 Nd7 Re6 Ndf6 Qh7 Rb1 a1N Nh5 Nc2 Ra1 Na3 Rh2 Nb1 Ra5 Ne7 g8B Nc8 g7 Qg6 Bf7 Re5 g8B Re6 Bg2 f1N N2g3 f2+ Kc1 Ne3 Bf1+ Be2 Ra2 Re5 Be6 Nf5 Bgf7 Nh6 Ra5 Ng8 Ra4 Ra2 Rg2 Ra3 Kb2 Ra2+ Kb3 Rc2 Kb4 Rb2+ Ka5 Kc2 Ra2 Bf3 Bc4 f1Q Re2 Qd1 Ra1 Qh1 Ba2 Rg5 Nf1 Rg1 Nfg3 Re1 Ka4 Nge7 Qa8 Qf6 Bc4 Qh8 Ra3 Qh7 Ba2 Qg6 Qa7 Ng8 Qb6 Rb3 Qb7 Rd3 Kb4 Re3 Ra8 Rb3+ Ka5 Rb2 Qa6
1b1k2RK/BqNr1BNB/P3r1q1/q3B2b/P7/1NNb1n1R/1N3Q2/1b1bn3 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 h5 Kd3 c5 Ke4 e5 d4 b5 a4 c4 f4 c3 g4 c2 d6 b4 f6 b3 f5 h3 f7+ Kd7 f6 b2 Kf5 h2 Kg6 e4 a6 h4 g5 e3 d5 e2 Qd4 e1Q Qf2 h3 Bf4 c1Q Be5 Qcd1 Na3 b1B+ Bd3 Qdd2 Nc4 Rh5 Ne2 Qe7 Nb2 Qg1 Nc3 Kd8 d7 Nh6 Kh7 Nc6 g6 Nd4 g7 Nc2 g8B Ne1 Kh8 Ra7 Bdh7 Qg6 Ra3 Rg5 Rg1 Nf5 Rg2 Bh6 f8B h1B f7 h2 Rg3 Qb4 Bc5 Qb7 f8N Nd4 Bf7 Bf3 Rg2 h1B Bb6+ Ke7 d8N Bcf5 Nde6 Bfd3 Ng7 Bh5 Nfe6 Ndf3 Nc7 Kd8 d6 Rg4 d7 Re4 Rg3 Bf4 Rh3 Bg3 Rb3 Qdg5 Rb4 Re3 Rg4 Bg2 Bbd4 Bgf1 Bc5 Bfe2 Bb6 Bd1 Bbd4 Ke7 d8N Kd7 Nc6 Re4 Na5 Kd8 Bd6 Re6 Nb3 Qa5 B6e5 Qc6 Na8 Rd7 Ba7 Qb7 Nc7 Bh4 Nce8 Be7 Nc7 Bd6 N7d5 Bb8 Nc7 Rc6 Rg1 Re6 Nge8 Qf5 Rg8 Qg6 Ng7+
b3n1r1/5NbP/1nb2qRq/5QrR/B4b2/2N1kPB1/bB4Bn/KB1B3Q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb2 Ke4 h4 d5 a4 g5 c6 e5 f6 b5 c5 g4 f7 g3 c7 d4 h6 g2 h7 b3 h5 b4 a5 d3 a6 d2 h6 Nf6 c6 Rg8 h8B Ne8 a7 Bb7 c8B Nd7 h7 Rg5 c7 Qf6 Na3 Nb6 Ne2 g1N Nb5 Bc6 Rh5 Bg7 f8Q Nf3 Bd7 Nh2 c8B Rb8 f3+ Ke3 a8B e4+ Nec3 Qh6 Kb1 b2 Nd6 Qf6 Ka2 b1B+ Kb2 b3 Bg2 Ba2 Qh1 Qh6 Ba6 Rc8 Be2 Qf6 Ka3 b2 Nf7 b1B Bb2 d1Q Bb7 Qc1 Bd1 Ra8+ Ba6 Rb8 Bd3 Bad5 B3c2 Bba2 Bb1 Ba8 B7a4 Bdc6 Ne2 Qd2 Be5 Qdd6+ Kb2 Qh6 Nc3 Qdf6 Bc7 Qd6 Bbc2 Kd2 Ne5 e3 Be2 Rg4 Qf5 Bf6 Nb5 Ng7 Rg1 Rg8 Bb1 Ne8 Bed1 e2 Bf1 e1B Ka1 Bg3 Bh3 Ke3 Bb8 Be7 Nf7 Bf8 Bb2 Qdf6 Nc3 Bgd6 Rg3 Bg7 Bg2 Be5 Rgh3 Bd6 R3h4 Rg3 Rg4 Be5 Rg6 Rg5 Bd6 Bg3 Bda3 Bb8 Bd6 Bc7 Bg3 Bb8 Qd7 Bf4 Qf5
1R2Rrqb/1NbqN1P1/K1k3N1/5n2/3P2b1/1RrRB1n1/b4RQ1/3rb1NB b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 e5 Kc4 h5 f4 a5 b4 c5 g4 a4 g5 h3 b6 a3 Kb5 h2 g6 c4 d6 c3 b7 h4 f6 e4 f5 c2 f7 e3 f6 e2 Bg2 e1B Qf3 a2 Nc3 h3 Rb1 a1B Rb3 Na6 b8R Ne7 Nd5 Nc5 d3 Nf5 Be3 Be7 f8R c1Q f7 Ne4 Qe2 Bg7 d4 Neg3 Re8 Rh4 Rd3 Bh8 g7 Qcc7 Bf3 Bf6 Qg2 Be5 Rb7 Rb8 Ka6 Kc6 f8N Qcd7 Ng6 Rf4 Be4 Rf2 Bf3 Rc2 Be4 Rc3 Bf3 Q7e7 d7 Bc7 Be4 Qf8 Bf3 Qg8 b5+ Kd6 b6 Kc6 Ne2 Qe7 Rf1 h1R Rf2 h2 Be4 Rf1 Ng1 h1B d8N+ Kd7 Ne6 Kc6 Nc5 Be6 Bf3 Rd8 Rb8 Qd7 b7 Bf7 Rc8 Be6 b8R Bf7 Rb3 Be6 Re7 Rf8 Nb7 Bf7 Rb8 Be6 Qh2 Bf7 Be4 Bf3 Ree8 Bg4 Bh1 Bd2 Qg2 Rd1 Nb6+ Bd5 Bg5 Be1 Be3 Bdf3 Nd5 Be4 Rdd2 Bb1 Rd3 Ba2 Nde7#
2RB1n2/b2bK1P1/1N1Q2Bn/1Pq4N/rBb1Brbk/1R1b2B1/5N2/1N1n2q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 a5 Ke4 f5+ Ke5 h5 g4 c5 d4 a4 b4 f3 e4 h4 b6 h3 b5 f2 d6+ Kf7 b7 Kg6 d5 f4 d7 a3 Ke6 h2 e5 a2 d6 f3 Bg2 f1B Ba3 c4 Nh3 c3 Nf2 c2 Bb4 Nc6 b8N Qb6 Qd4 Be2 Rc1 h1B Qf4 Ra4 Qg3 Ba6 d8B Bc8+ d7 Rh4 Bc7 Bc5 Qf4 Qa7 Qf8 Nh6 Qd6 Nd8+ Ke7+ Ne6 d8B Qb6 Nd7 Bd3 Bb8 Qc6 Nb6 Bd7 Bbc7 Be3 Bb8 Qc5 Bbc7 Kg7 g6 Nf8 g5 Rf4 e6 Bd4 Nh3 f2 Be4 f1B Nf2 Bf3 Bb8 Kg8 g7 Bg4 Bbc7 Bc4 Bb8 Bfd3 Bbc7 Qf5 Bb8 Kh7 g8N Kg6 Nf6 Bc5 Nh5 Bd4 Re1 c1N Re3 Ne2 Bbc7 Bc2 Rb3 Nc3 Bb8 Nd1 Bbc7 B2d3 Bb8 Kh7 g6+ Kh8 g7+ Kh7 Nc3 Kg6 Rc1 Kg5 Nb1 a1Q Rcc3 Bd5 Rc8 B5c4 Nd5 Nb2 Qe5 Ba7 Nd2 Bge2 Kd6+ Kg6 e7 Kg5 Nb6 Qg1 Nb1 Kh4 e8B+ Qfg5 Qc5 Beg4 B8g6 Rf6+ Ke7 Nd1 Bh2 Qe3 Qd5 Qc5+ Qd6 Rf4 Bg3+
KN1kr3/b2B2B1/bq6/1N3R2/3R1nNq/r3qPn1/QNBq1rPn/3N1B2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 d5 Kd3 h5 c4 a5 b4 e5 g6 h4 g7 h3 f3 a4 f6 h2 f7+ Ke7 c5 a3 c6 a2 c7 Kd7 b6 Rh4 b7 Qg5 b5 Na6 b6 Nf6 g8B Re4 Qd2 Re2 Bh7 Ng4 Nh3 Qh4 Na3 Bc5 Bb2 Rf2 Rd1 a1R Nb5 Ra3+ Bc3 Rb8 f8N+ Ke7 Ne6 e4+ Kc2 e3 Kd3 e2 Qa2 e1Q Nef4 Ra8 b8N Qe5 b7 Ba7 Rd2 Ke8 Nd7 Nc5+ Kc2 Qe1 b8N Ne6 Kd3 Ba6 c8B Kd8 Nf6 Qe5 Bd7 Qe3+ Kc2 d3+ Kb2 Ra5 Kb3 d4 Kb4 Ra3 Rd1 d2 Nd3 Nf4 Nb2 d3 Bhf5 Nh6 Ng4 Qb6 Bg7 Qe3 Rc1 d1Q Rc4 d2 Bc2 Qb1 Rd4 d1Q Kc4 Qde2+ Kb4 Q2d2+ Kc4 Nd3 Kd5 Nf4+ Kc6 Qec3+ Bc4 Qce3 Rd1 h1N Bf1 Ng3 Rd5 Qb4 Rf5 Qbc1 Rd4 Qcd2 Ng1 Qa5 Ne2 Qab4 Nec3 Qa5 Nf6 Ng4 Ncd1 Nh2 Ng4 Ke7 Nc7 Be2 Nba6 Re8 Kb7 Kd8 Nb8 Ba6+ Ka8 Qb6 Nb5
2rb4/n1NRb1Q1/4q2N/1BRB2n1/1q1rN1BK/1PB2P2/b1N4k/n1N2n1q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 g4 Kd7 d4 Kd6 b6 e5 f3 a5 Kf2 h5 Kg3 c5 b7 a4 g6 c4 g7 e3 g5 c3 g6 e2 Qd2 e1Q+ Qf2 e4 Ne2 e3 Na3 c2 Bd2 c1Q Nc2 a3 Bc3 Nc6 b8N a2 Na6 Qe8 Nc5 Nh6 g8B Na7 g7 Nf7 Kh4 Ng5 Be6 Be7 Bg4 Be6 g8B Rd8 Rh3 Qb1 Nc1 e2 Bf7 Qd1 Qg1 e1B+ Rg3 Bd2 Bb5 Qd7 Qg2 Qh1+ Rh3 Rc8 Rh2 Rhd8 Ne4+ Kc7 Bg8 Bf7 Rh3 Qe6 Qg3+ Rd6 Qe5 Bf4 Qg7 Rd7 Rh2 Bd8 Rh3 Bd6 Rh2 B6e7 d6+ Kb6 d5 Kb7 Kg3 Kb8 Rd2 h4+ Kf4 h3 Kg3 h2 Kh4 Rb7 d7 Kc7 Rd3 Rb6 Rd1 Ra6 Rd4 Ra4 Rd3 Rd4 Rd1 Qg1 Rd2 h1N d6+ Kb8 Rd1 Ng3 Rd2 Nf1 Rd1 Bb6 d8N Ba5 d7 Kc7 Nc5 Kd6 Ne4+ Kd5 Rd3 Bg6 Nf7 Bad8 Nh6 Bf7 Nf6+ Ke5 Ne4+ Kf4 Rd1 Ra4 Rd5 Rd4 Rc5 Bc7 d8N Bb6 Nc6 Bbd8 N6b4 Qg2 Na6 Qd2 Ba5 Qc3 Nc7 Qb4 Nb3 Qd1 Rb1 a1N Nc1 Be8 Bf7 Bc6 Bg8 Bd5 Bf7 Ba2 b3 Qbc4 Bc3 Qb4 Bg8 Qf6 Bd5 Qe6 Nf6 Qde1+ Kh5 Kg3 Ne4+ Kh2 Rb2 Qd1 Kh4 Nd2 Rb1 Qh1 Rb2 Bb1 Ra2 Nf1 Ra6 Ba2 Rd6 Qa5 Rd7 Qab6 Bd3 Qb4 Bb5
4R3/3R1Q2/b1rqn2Q/1r2r2r/N1NP4/nq3B1P/2kR1b1R/R1Bq1RbK b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 b4 Kd7 f4 Kd6 Kf2 g5 Kg2 e5 h3 c5 b6 a5 b5 c4 b7 Kc5 d6 Kd4 d7 e4 d3 e3 b6 e2 f6 e1R f7 g3 f5 a4 f6 g4 Nd2 Kc3 Ra2 a3 Ngf3 Nh6 Nh2 Bc5 f8Q Re5 f7 Nf5 Qe7 Nc6 b8R Ng7 f8R Nb4 b7 Bf2 d4 Ne6 Qa4 Raa5 Nhf3 Nc2 Qc6 Rhh5 Nb3 Rab5 Ra1 a2 Be2 Na3 Qf7 Kc2 Nc5 c3 Na4 Qc7 Ra8 Qd6 b8R Bb7 d8R Ba6 Rb1 a1Q Rd7 Qa2 Ra1 Qb3 Rbe8 Rh6 Rd1 Rhh5 Kh1 g2+ Kh2 g1B+ Kh1 g3 Rd3 Be3 Nd2 Bgf2 Nc4 g2+ Kh2 g1R Bf3 Rg6 Kh1 Rgh6 Rg8 Bg1 Rg2+ Bef2 Rh2 Rh8 Ree7 Rc8 Re8 Rc7 Qb6 Rc8 Rf8 Rc6 Rae8 Nc5 Qd8 Rh7 Bh5 Ne6 Bd2 Bg3 Qg5 Be1 Be2 Rh5 Qh6 Bg3 Qg8 Bh4 Ra2+ Kb1 Rf1+ Be1 Bg5 c2 Qf7 c1Q Bf3 Qcd1 Bc1 Bef2 Ra1+ Kc2 Rd2+
3qb1Rq/1R3r1q/R2N2r1/b1n1Rb1Q/1PQ2K1n/k1R1r1RN/1q3P2/1B2B3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 g4 Kc5 d4+ Kb4 d6 a5 b6 c5 d7 h5 b3 e5 b7 c4 d5 a4 d6 e4 f6 c3 g5 c2 g6 a3 g7 a2 f7 h3 Qd3 h4 Nc3 h2 Bb2 c1Q+ Qd2 h3 Kf4 e3 Qd3 Ra6 Nb5 Ne7 g8R Nf5 Rg3 Nh4 Be2 Bg7 f8Q Bc3 Qff5 Rh7 Qh5 Be1 Bg4 Rf7+ Bf5 Bd2 Bd4 e2+ Be3 Bc3 Bd2 Qb2 Be1 Rc6 Rc1 Na6 b8R a1Q Rb7 Nc5 Qc2 Qa7 Ra1 Qb8 Ra6 Qh8 d8R Be6 Re8 Qd8 Bd2 e1R d7 Re3 Nd6+ Rb6 Be1 Bd2 Ra8 Qh7 Rc8 Ka3 Qc4 Ba5 b4 Ra6 Reg8 Rb6 R8g6 Rc6 Rf6 Qhh8 Bb1 Bf5 Re6 Qh7 Re5 Ra6 Ne8 Rg6 Nd6 Qhh8 Rc6 Qh7 Ra6 Qhh8 Ne2 Qh7 Rf1 h1B Ng1 h2 Nh3 Bc6 Rfg1 h1Q R1g2 Qe7 d8R Be8 Rc8 Qd8 Rg1 Qd5 R1g2 Qe6 Rcc7 Qef6 Rcc6 Qfh8 Rc8 Rgf6 Rg8 Re6 R2g3 Rg6 Qe6 Ne4 Rc1 Nc5 Qc4 Q7g7 Rc2 Qgh7 Rc3+
1r1rk2r/R2Rb1K1/2R5/1q1n1P2/1r1Q1Nbb/2n1NBQ1/1P2RB2/R1q2n1R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 h5 Ke3 e5 Ke4 c5 f4 a5 g4 h3 d4 c4 f6 c3 f5 h4 b6 a4 d6 c2 g5 h2 d5 a3 b7 h3 g6 a2 g7 Nc6 b8Q Ba6 Na3 Bb5 Ne2 Nce7 Nf4 Be2 Bg2 Bg4 Be3 c1Q Bf2 Ra4+ Qd4 Rb4 Qc7 Qb8 Bf3 Qb6 Nc4 Qb5 Re1 h1N Re2 h2 d7+ Kf7 d6 Nd5 d8R+ Be7 Rd7 Ke8 Rb1 a1R Ne3 Ra8 Ra1 Rd8 Qc3 Bf8 Rda7 Nge7 g8R Rb8 Rg6 Rd8 Qe1 Rg8 Qg1 Rb8 Nc4 Rh8 Qg3 Nc3+ Kd3 Ned5 d7+ Kd8 f7 Be7 Rc6 Re8 Qh4 Ng3 f8R h1R Rh8 Nf1 Qg3 Rh6 Rh7 Rd6 Rh1 Rh8 Qc5 e4+ Kd4 e3 Ke5 Rb7 Qd4 Rb8 Rc2 e2 Ne3 e1B Rd2 Rf6 Re2 Rff8 Ke6 Rfg8 Kf7 Re8 Kg7 Ref8 Qh3 Re8 Bg1 B1h4 Qg3 Ref8 Bf2 Bd6 Ra8 Ke7 d8R Re8 Rdc8 Rd8 R8a7+ Ke8 R8c7 Bde7 Rd7
R2qb1N1/B2k1BR1/Bn4BR/3r1P2/3bK2R/2q2BrP/2Q4q/n1b1Nqn1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 e5 Ke3 b5 c4 d5 f4 g5 a4 d4+ Ke4 d3 f6 b3 c6 b2 a5 b4 h6 d2 c7 g4 f5 g3 h3 g2 h7 b3 f7+ Kd7 a6 Ba3 f8R Nh6 a7 Ng4 c5 Rg8 h8R Ne3 Nf3 g1N Rh4 Rg3 Rfh8 Nc2 Nc3 b1Q Nd5 b2 R8h6 Qa2 Ne7 b1Q Be2 Qbb2 Ng8 Qc3 Ne1 Qab2 Ra2 Na1 Qc2 d1Q Bh5 Ba6 Bg6 Bb5 Bd2 Qe2+ Be3 Qf1 Rh2 Ba4 Rg2 Bb5 Kd5 e4 Bf2 e3 Ke4 e2 c8B+ Kc7 c6 Nd7 Ba6 Nb6 Bd4 Kd6 c7 Be8 Bc4 Kd7 Bcf7 Bc5 Bf2 Bd4 Ra3 Rb8 a8B Rb7 Ra6 Ra7 Ra2 Ra5 Be3 Rd5 c8B+ Kd6 Ba6 Kd7 Nf3 e1B Ra3 Bd2 Ne1 Be5 Bc5 Bc1 Ra5 Nc8 Ba7 Nb6 Bh5 Qd2 Qc3 Bd4 B6b7 Qfb5 Bb8 Nc4 Qc2 Rb3 Rg7 Qh2 Bhg6 Nb6 Ra7 Rd6 Ba6+ Qc7 Bad5 Rg3 Ra8 Qd8 Bc4 Rd5 Be2 Qc3 Bf3 Qf1 Ba7
rr1RBN2/3Bn3/1Q2n1PP/6BB/3q2QK/2b2q2/bR1B2qN/1kB1r1bq b - - 0 1 illegal: No possible last move, all moves rejected
2nb1n2/2qkq3/1B1B1PbQ/2r3q1/4P2B/RQ1b1R2/KnB1Nn1B/Br3N2 b - - 0 1 illegal: No proof kernel
1Nn1Q2k/7P/2N1Rn1q/R6q/Q1r3rN/2rb2B1/1bPb3N/1nNBrNK1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 h4 d5 f4 e5 Kf2 g5 h6 a5 b6 e4 f6 d3 h5 d2 h7 a4 b7 a3 b5 d4 f5 d3 b6 a2 h6 g4 Nf3 g3+ Kg1 g2 Nh2 e3 Qg4 d1N Be2 d2 Qa4 Nc3 Bd1 Nd7 b8N e2 b7 Nb6 Nc6 Bb4 b8N Ba6 Bb2 Kf8 f7 Nf6 Bc1 Rg8 h8N Qd6 h7 Kg7 f8N Bd3 Nfd7 Rc8 Nde5 Rc7 Nhg6 Nc8 Nh4 Kh8 Bb2 Ra5 Ba3 Rc5 Bc1 Rc4 Bb2 Nfe4 f6 Qf8 f7 Qh6 Bc1 Nf6 Ba3 Ba5 Bc5 Bb4 Bf2 Ba5 Bg3 e1R+ Kf2 g1R f8Q+ Ng8 Qe8 Bb4 Bg4 d1Q Nd2 Nb1 Ndf1 Bd2 Bf3 Qh5 Bg4 Qc1 Bd1 Rc3 Bf4 Rg4 Bg3 Rcc4 Kg1 Rc3 Na5 R7c4 Nec6 Be4 Nb3 Bd3 Qe5+ Nf6 Qe2 Qa3 Nc1 Qf8 Qe8 Na3 Rb1 a1B Rb5 Nb1 Ra5 Bb2 N2f3 Rcf4 Rh2 Rfc4 Re2 Qg5 Nh2 Qh5 Qe7 Qg7 Re6 Qgh6 Qe8+
b4Bb1/r2R1P1k/1n2N3/2Kn2qN/1r4nb/RR1PrR1R/2QR3Q/1Bqr4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kg7 Kd4 h5 f4 a5 g4 c6 b4 h3 d6 e5+ Kc5 h2 b6 h4 g5 h3 b7 a4 g6 e4 b5 a3 f6+ Kh6 f7 a2 b6 e3 f5 e2 g7 e1N f6 Ra3 Ne2 Nc2 Nf4 Nb4 Nc3 Nd5 Ne6 Kh7 Ne2 Nh6 g8R Re3 Ng3 Be7 f8R Ng4 Ba3 Bd7 Qb3 Be8 Rd1 a1R Nh5 Bf7 Bb4 Ra7 Bd3+ Kh6 Rg6+ Kh7 Bb1 Bg8 f7 Bh4 d7 Qf6 d8R Qg5 Rhf1 h1B d3 h2 Rd7 Be4 Rd2 h1R Rf3 Rd1 Rh3 Bg2 Rf6 Bf3 Qc2 Be4 Kd6 c5 Rff3 c4 Kc5 c3 Re8 Nc6 b8Q Nce7 b7 Nc8 Qh2 Ncb6 Qb3 c2 b8R c1Q+ Qc2 Kg6 Ba3 Rh6 Rbb7 Kh7 Ra8 Rf6 Bb4 Rf4 Ba3 Nc4 Rb3 Ncb6 Rff2 Bg2 Rff3 Rb4 Bb2 Rb7 Raa3 Ra7 Bg7 Ndf6+ Rf5 Ba8 Bf8 Nfd5 Rff3
4r2q/1R2P2R/1n1BPb2/1RrQq3/R2N2bb/R1n3r1/1N2Q1RK/k3qb1B b - - 0 1 illegal: No possible last move, all moves rejected
1NQB2K1/1nP2RP1/N1brR1N1/rq1N2Nq/3qB2B/n1b5/qb6/k1B2r2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 c4 e4 b4 h3 g4 d3 c5 e3 f6 h2 f5 a4 c6 a3 b6 e2 b7 e1B b5 d2 c7 a2 b6 Rh6 Nf3 Nc6 b8N Na7 b7 Bg7 Na6 Qe8 b8N Nb5 Nc3 Na3 Bg2 Ne7+ Kd6 Bh8 Nd5 Nc6 Rf1 h1R Qb3 d1Q Qb7 Na5 g6+ Kg8 g5 Bc3 f7+ Kg7 Rb1 a1Q Rb6 Qa2 Rc6 Qd4 f8B+ Kg8 Be7 Kg7 Rf2 Rf1 Bd8 Ra7 Qa8 Bb7 Rb6 Bc6 f6+ Kg8 f7+ Kg7 Qb7 Qee2 Qa8 Qb5 Ke7 d6 Qb7 Ra8 Qc8 Nb7 Ng1 Bb2 Be4 Bc3 Nh3 Ra7 Nab4 Ra5 N4a6 Bb2 Ne3 d5 f8B+ Kg8 g7 Rd6 Rf5 Kh7 g8N Kg6 Rf6+ Kh5 Kf7 Qc3 g6 d4+ Qe6 d3 Bh6 d2 Bf8 d1Q Ng5 Be8+ Ke7 Rd5 Nf7 Qde2 Rd6 Bc6 Qc8 Qh2 Rde6 Rd6 Nd5 Kg4 Bfh6 Qh5 Kf8 Qcc5 Rf2 Bhc3 g7 Qd4 Nge7 Kg3 Ng6 Kg4 Rd2 Kg3 Rd3+ Kf2 Bhg5 Ke1 Rf3 Ke2 Bh4 Kd1 Rd3+ Kc2 Kg8 Kb1 Ng5 Ka1 Rf3 Qb1 Rf2 Qa2 Rf7
2N1n1k1/nr1nq3/RR1P3r/nNBn1Rb1/B6R/2NRn3/P4K2/bQ4Nb b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kf7 f4 c5 h4 g5 d6 e5 d7 b5 d5 b3 d6 c4 h6 c3 h7 c2 f6 e4 f5 g4 h5 e3 h6 b2 Bg2 b4 Rh4 b3 Bh3 e2 Bg5 c1N Qd3 g3 Rd4 g2 Nc3 b1N Kf2 e1N Be3 Qe7 d8R Na3 Qb1 b2 Rd3 Nb3 Bc5 Nb5 Rd7 Bg7 Ra7 Bb7 Ra6 Kf8 f7 Nc2 Bg4 Na5 Bd1 Ne3 Bc2 Nf6 Ba4 Rg8 h8N Na7 h7 Bh6 Ng6+ Kg7 f8N Bg5 h8R Nbd7 Rd1 Ne8 Rd3 Rb8 Rh4 Rh8 f6+ Kg8 Ne6 Rh6 Nc7 Be4 N7b5 Rb7 Qc1 b1N f7+ Kh7 f8R Bd5 Nd1 Nc3 Rf5 Kg8 Rb1 Be4 Rb4 Ncd5 Qb1 Bf3 Ndc3 Be4 Nc7 Bf3 Rbb6 Be4 N7b5 Bf3 Nge2 g1B+ Kg3 Bh2+ Kf2 Be5 Ng1 Bh1 Ne4 Ba1 Nec3 Qf7 Ne7+ Kf8 Nc8 Kg8 Ke2 Qe7 Kf2
B4r1r/1Q1q2n1/B4B2/Nnk2Bb1/4N1RN/2N1Pq1b/K2PbBb1/5bbR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 Kd6 e3 h5 b6 c5 g6 a5 g7 f5 b5 h4 b7 f3 b6 a4 g5 h3 g6 a3 Ba6 h2 Qb3 f4 Kd1 a2 Kc2 c4 Kb2 f2 Nc3 f1B Nf3 Nf6 g8B Nc6 b8N Bh6 b7 Nd4 g7 Qd7 Nc6 Ne8 b8N Bg5 Na5 Nb5 Be6 Be2 g8B Ng7 Bf5 Kc5 Nh4 f3 d6 f2 Bd5 f1B Rg1 h1B Rg4 Bhg2 Bde4 Nd4 Qb7 Nb5 Rb1 a1B+ Ka2 Rf8 Bb2 Rh8 Nbc6 Rb8 Nb4 Rf8 Nbd5 Ra8 Nd1 c3 Nf6 c2 Nc3 c1Q Bc6 Qd1 Bd5 Qf7 d7 Rb8 d8B Qd7 Bc7 Rh8 Bg3 Rf8 Bc1 Bb2 Bde4 Ba1 Bf2 Rh8 Ncd5 Be5 Nc3 Bh2 Bb2 Bg1 Bd5 Qc2 Re1 Qe4 Bc6 Qf3 Nfe4+ Kb4 Qc7 Rf8 Ba8 Rh8 Qb7 Rf8 Nd6+ Kc5 Rc1 Rh8 Rd1 Rf8 Nde4+ Kb4 Ka1 Rh8 Nb1 Qd8 Ka2 Bh2 Bh7 Qc7 Ng3+ Kc5 Re4 Bch3 Bf5 Rbf8 Rg4 Qd7 Bf6 Bc4+ Kb2 Bfd3 Rh1 Bg1 Nc3 Bdf1 Kb1 Bcd3+ Ka2 Bde2 Nge4+
r1bqn3/2Q2rB1/b2rb1B1/bnr5/BPB1P1NB/3Q1BK1/1N6/rk3R1R b - - 0 1 illegal: No possible last move
b1rB2N1/1B3q2/BbP1N1Bn/1Q3RK1/1R2rRP1/2rRnb1B/r4k2/1b4b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 b4 Ke4 c4 a5 b6 d5+ e6 a4 b7 d3 c5 d4 b5 d2 b6 Ke3 g6 a3 g7 d3 Qb3 a2 Rh3+ Kf2 e4 d1B+ Nf3 d2 e5 Qf6 Qb5 Na6 b8R Nb4 b7 Nc2 Nc3 Nh6+ Kh5 Qf4 g8B f5 g4 Ne3 Nd4 Bf3 e7 d1R e8B Rd3 Nd5 Rc3 e6 Be7 Bef7 Bd8 e7 Bb6 e8B Ra5 Rb1 a1B Ne7 Ra2 Ne6 Qc7 Rb3 f4 Rb4 Bd7 Ba3 Bdc6 Bc1 Bce4 Bg6 Bb1 Bc6 Qd7 B8f7 Rc8 Ng8 Bb2 Be8 Qf7 Ra8 Ba3 b8R Bb2 Ra5 Ba1 Bcd7 Ba8 c6 f3 Rf4 Bb2 Bg2 Ba3 Kh4 Bac5 Bd3 Nd1 Ng7 Kg1 Qc4 f2 Bgf1 Qg6 Qa4 Ba7 Ra6 Rd8 Be3 Nf7 Bd4 h5 Rff3 Nh6 Rf4 Qf5 Rb3 Bab6 Rb4 Qf8 Kg5 h4 Beg6 Qf7 Rhf3 h3 Bf6 h2 Ra5 h1B Bh3 f1R Bc8 Re1 Bb7 Re4 Ne6 Rc8 Bda6 Bd4 Rd3 Bf3 Bd8 Be3 Bf1 Bf2 Raf5 Ne3 Be2 Kg2 Qb5 Bg1 Bf1+ Kf2 Bh3
5R2/1n1PKn1b/1q3nB1/n1R5/1nrbN2N/BkrBPNN1/1BqN4/1n1Q4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 h5 d4 f5 g6 a5 e3 c5 d6 a4 g5 c4 b6 f3 d5 h4 d7 h3 Ke6 f4 d6 c3 b7 f2 g7 h2 g6 c2 Nd2 a3 Bd3 f1Q Ngf3 a2 Nh4 Na6 b8B Nh6 g8B f3 g7 f2 Bf7 Qb6 g8N Bg7 Ne7 Qe2 Bfg6 f1N Nef5 Bd4 Ke7 Nf7 d8N Nc5 Ne6 Ra4 Ng3 Nb7 Ng5 Bf5 d7 Rc8 Be5 Rc3 N5e4 Qg2 Rg1 h1N b3 Nf2 Ba3+ Ka5 Rh1 Ng4 Rc1 Rac4 b4+ Ka4 b5 a1N Rh2 Qe2 Rf2 Nb3 Bg7 Nf6 Bh8 Nh2 Ndf1 N3a5 Bg7 Kb3 Rf3 Qa6 b6 Qg2 Rf2 Nf3 Bh8 Nd2 Rf3 Nbd6 b7 Nb1 b8N Qb6 Nc6 Ndb7 Ne5 Qh2 Bh5 Bh7 Bg6 Qf2 Rf5 Qf4 Nef3 Qfc7 Rc5 Qcc6 Qe2 Qc8 Re1 c1N Qd1+ Rc2 Re2 Na2 Rf2 Nb4 Bb2 Ng4 Be5 Nf6 Ba3 Ba1 Beb2 Qcc7 Qc1 R2c3 Qd1+ Nc2 Nd6 Qb8 Ngf5 Ne5 Be2 Rd3 Ne1 Nh5 Ne4 Q8d6+ Ke8 Qd4 N5g3 Qc3 Rf8 Nf7 Ke7 Nf6 Nef3 Qd2 Bc1 Bd4 Bcb2 Rdc3 Bd3 Qf2 Qc1 Nb4 Qd1+ Qc2 N1d2+
1n1kbNB1/P2nr3/1qRb4/N1P1nK1B/2bQN3/B2b3N/Rr2B1b1/1n3N2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 h5 Kd3 d5 a4 e5 c4 b5 f4 h4 g4 d4 Ke4 d3 g6 h3 a5 d2 f6 b3 f5 h2 g7 b4 c6 b2 c5 b3 g5 Qb6 c7 Bd7 c8B Ne7 g8B Qa6 g6 Ra7 f7+ Kd8 f6 Nd5 g7 Qb6 a6 Rh7 Nh3 Bd6 f8N Rb7 f7 Be8 a7 Nf6+ Kf5 e4 Ra2 e3 Nd7 e2 f8N e1N Be2 Nf3 Ne5 Nfd7 Nc4 Nfe5 Rf1 h1B Na5 Bd5 Rg1 Bh1 Rg6 Bg2 Qg1 d1B Nd2 b1N Ba3 b2 Nf1 Bb3 Qd4 Bc4 Re6 Be7 Rc6 Bd6 Bh5 Qc7 Be2 Rb5 Ba6 Qb6 Bh5 Rb3 Be6 Rb5 g8N Re7 Bef7 Nd2 Nf6 b1B+ Ne4 Rb2 Bb5 Bbd3 Bg8 Nb1 Ba4 Qc7 Bad1 Qb6 Bde2
1K1N1BB1/P1rR1rNb/r1rP2kn/1B3B2/1R1r1Q2/b2R4/b3q2R/1nb3B1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 b4 d6 b2 Kd5 h4 f6 c4 f5 h3 a5 h2 g6+ Ke8 f7+ Kd7 f6 b3 g5 e4 a6 c3 g7 c2 a7 e3 g6 e2 Nd2 b1B Ne4 e1B Nf3 b2 Bb5+ Nc6 Ra4 Qe7 Nfg5 Rh3 Qf3 Bc3 Ne6 Rh6 Qf4 Bd2 Rb4 Ba2+ Kc5 b1R Kb6 Rh7 d5 Nh6 g8B Ra1 g7 Qe8 Rd1 h1R Nd8 Rf1 Ng3 Qe2 Nf5 Be7 f8B Ke8 Ba3 c1R Kc7 Rc2 Bb2 Bc1 Bd4 Rd2 Bf2 Rd4 Be6 Bb7 g8B Rc8+ Kb6 Rc7 Rd3 Rf7 Be3 Bc8 Bg1 Bd7 Ka6 Ne5 Kb6 Rc6+ Kb7 Nf3 Kb8 Rg7 Nh4 Nd2 Bf5 Be6 f7+ Kd7 Bg4 Nb1 Nf5 Rh7 Ng7 Bf5 Nge6 Be4 Bf5 Rf2 Bg7 Rf1 f8R Rf3 Rf6 Ke8 Bf8 Rf7 Rg6 Rg3 Rf6 Rgg7 Rg6 Rh7 Rg2 Rhg7 Bg4 Bh7 Bf5 Ba3 Rh2 Bg5 Qh4 Bgc1 Qf4 Rc7 Rh1 Rgf7 Rh2 Kd7 Ng7+ Qe6 Qd2 Bb3 Qf4 Bab2 Nb7 Ra6 Na5 Kd8 d7 Qe2 Bd6 Ba3 Bc5 Rd6 Nb7+ Ke7 d8R Kf6 Rd7 Ba2 Nd8 Re6 Bf8 Rec6 Bg4+ Kg6 d6 Be6 Bh3 Ba2 Bf5+
b4Rr1/K1b1N2n/2QB1B1r/R2N3n/P1RP2B1/1n2bbr1/nq1R3B/k2R4 b - - 0 1 illegal: No possible last move, all moves rejected
2K3R1/1n2r1Pn/1B3bR1/N4RQ1/1bbPkN1r/2BB1R2/B1r3rn/b1q3B1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 b4 a5 g4 c5 d4 h4 b6 f3 g6 f6 g5 c4 b5 h3 b7 h2 b6 c3 g7 f2 g6 c2 Na3 a4 Nh3 Rh6 Bd2 c1B Bc3 Bf4 Qd2 Be7 Rg1 Na6 b8B+ Qc7 b7 Be5 Qg5 h1R Nf4 R1h4 e3 Rh8 Bd3 Ra7 Raf1 Be6 Rg3 Rh2 Rf3 R8h4 Rg1 Bf7 Kf5 f1N e4 Nc5 Rg4 Rg2 Nc4+ Kd7 d6 Kc6 d7 a3 d8B a2 Rgg3 a1B Na5+ Kd6 Rg4 Bc4 Rgg3 Nh2 Rg4 Kd7 Rgg3 B5d6 e5 Qc8 Bb6 Bd8 Nb3 Kc6+ e6 Raa2 B8c7 Rac2 b8R Nb7 Ra8 Bb4 Ra5 Bde7 Bb8 Qc7 Re5 Bd8 e7 Kd6 Rd5+ Kc6 Ke6 f5 e8R Nf6 g8B Nh7 g7 Bf6 Nh3 f4 Bf7 Ba6 Rf5 Bb5 Rg8 Ba6 Re3 f3 Nf4 f2 Ref3 f1R Rg4 Rb1 Rgg3 Rbb2 Rg4 Ra2 Rgg3 Ra5 Rg4 Rd5 Rgg3 Bc4 Na5+ Kb5 Rg4 Qc5 B8c7 Re5+ Kd7 Re7+ Kc8 Qe5 Nd5 Qe1 Bg3 Qd1 Bf2 Qb1 Bg1 Qc1 Nb3 Kc6 Na5+ Kd6 Nf4 Ba6 Ba2 Bc4 Ng6 Be5 Be2 Kd5 Nf4+ Ke4 Qf6 Rg3 Rg6 Rg2 Qg5 Bf6 Bd3+
3B1q1B/q2B2R1/2kb3K/3qRP2/2r4B/2Pn1RR1/rqbNRrN1/2rn2Q1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 h4 Kd7 f4 e5 b4 a5 c3 g5 h6 d3 Ke3 e4 h5 d2 f6 g4 f7 a4 h7 g3 h6 g2 b6 a3 b7 a2 b5 Ra3 b6 Bd6 f8R Na6 b8B Kc6 b7 Ne7 Nf3 Bf5 Rh5 Nc5 Bc7 Nd3 b8R g1R Rb3 Rg2 Rb7 Rf2 Nh4 Ra5 Qe1 d1Q Nd2 Qc2 Bh3 Qb2 Qg1 Qa8 Rf6 Rc8 h8B Ra7 Rb1 a1Q h7 Ra2 Bd8 Rc7 Ng2 Bg6 Kd4 e3 Re5 e2 Ke3 Qaa3 Bf5 d4+ Ke4 Nd5 Rfe6 Rc8 Rg7 Ne3 Rf6 Qbb4 Rb2 e1R Rc2 Q3b2 Rf8 Bh5 Rf6 Bd1 Bd7+ Kb7 f5 Rc4 Rfg6 Qc5 Rg3 Qa7 Bc8+ Kc6 Bh4 Qbb8 Be6 Qf8 Bd7+ Kc7 Ba3 Qb2 Bb4 Kb6 Ba5+ Kb7 Bad8 Ref1 Rc1 Bc2 Re1 Nd1 Re2 Re1 Be6+ Kc6 Rf3 Nb4+ Kf4 d3+ Kg5 Ref1 Kh6 Re1 Nb3 d2 Bc8 Nd3 Be6 Ne3 Bc8 d1Q Nd2 Qdc1 Rg3 Nd1 Be6 Qb3 Bc8 Qcb2 Bd7+ Kb7 Rf3 Qb5 Rg3 Qd5 Rf3 Qf6+ Kh5 Rff1 Rgg3 Qf8 Bg7 Ne3 h8R Rf2 Rg8 Rc1 Bh8 Nd1 R8g4 Qb3 Rg7 Qb2 Bc8+ Kc6 Kh6 Qc7 Be6 Qa7 Bd7+
3rN1R1/1Kn1k1qR/1P1r3b/1b1rB2r/1Q1PB2b/1N5q/N4b2/NB1B2nB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 c5 Kf3 h5 Ke4 a5 b4 a4 d4 h4 g4 f6 d6 f5+ Kd5 c4 e4 a3 e5 c3 d7+ Ke7 g6 a2 e6 c2 g7 f3 g5 f4 b6 f2 b5 h3 b7 h2 g6 f3 b6 Rh7 Bg2 f1Q Nc3 f2 Bf4 c1B Be4 Rh6 Qd2 Qc7 d8N Ra7 Nge2 Rh3 Nf7 Ra8 Be5 Nd7 b8N Ba3 Na6 Rh6 Nc1 Qh3 Nb3 f1R Nd6 Rf5 Nac5 Ba6 Ne8 Bb5 Rag1 a1B Na2 Bc3 Na1 Rd8 Ncb3 Rfh5 Qb2 Be1 Qc3 Bd6 Qb4 Bf2 Bb1 Nc5 Be4 Nd3 Rg2 Nc1 Bb1 Ba6 Rg3 Qa7 Kc6 Nf6 g8B Nd5 g7 Nc7 Bgh7 Ne2 g8B Ng1 Bhe4 Rf6 Bf7 Bh6 Rg8 Rhf5 Bh5 Bc5 Bg3 Rfd5 Be5 Bc4 Bd1 Rg6 Qa3 Bb4 Qa5 Bbe1 Qc3 Bh4 Qb2 Bef2 Qd2 Qa4+ Kb7 Qd7 Qa5 Bb5 Qa3+ Rd6 Qb4 Rg5 Rg6 Kf8 e7+ Kf7 Rg8 Qdg4 Bh8 Rgd5 Be5 Qgg3 Nf6 Qg7 e8B+ Ke6 Bc6 Ke7 Ne8 Ne2 Rg1 h1R Rg5 Rh2 Rh8 Ng1 Rh7 Rg2 Rg6 Rg5 Bh1 Rh5 Bhe4 Qf7 Rg8 Qg7 Bh1 Rc5 Bcf3 Rcd5 Bfe4
1q2N1qQ/BRR2P2/3R1q2/1B2r3/rn1b4/P1Rbrq2/Qr3nR1/R1K1k2N b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kd7 d4 Kd6 Kd2 c5 f4 e5 f6 b5 h6 g5 f7 c4 h5 b3 f5 c3+ Ke3 b4 h7 e4 f6 g4 a3 g3 h6 b2 Qd2 g2 Ne2 b3 Rh4 c2 Rg4 Ba6 Ng3 Bg7 f8R Nc6 f7 Bd3 Nh1 Qf6 Rc8 Nb4 Rc7 Ra4 Nc3 b1R Qf2 g1Q Kd2 b2 Rg2 Qf3 Rb7 Nf6 Rc7 Rc8 h8Q Rd8 h7 Ng4 Qe2 Re8 Qf2 Ba6 Bb5 Re5 Qe2 Nf2 Qc4 Rf5 Qa2 Rh5 Qc8 Re5 h8R Qf6 Rh3 Qf1 Qh8 Qd1+ Ke3 Qdf3+ Kd2 e3+ Ke1 e2 Kd2 e1R Rhg3 Bc8 Rb7 Bd7 Ne4+ Ke7 Nd6 R1e3 Rb6 Be6 Ne8 Bf5 Rh3 Bd3 d6+ Kd8 d7 Ke7 Qg8 Bh8 d8R Bg7 Rd5 Bh8 Rb7+ Ke6 Rc7 Kf5 Rdd7 Ke4 d5 Kf4 d6 Ke4 Kc3 Kf4 Bd2 c1Q+ Kb3 Bg7 Qh8 Qg1 Rb7 Ke4 Rdc7 Kf4 d7 Ke4 d8R Kf4 Qh7 Bh8 Rgh2 Qg8 Rg2 Qh5 Bc3 Qfg7 Rhh2 Kf3 Rd4 Ke2 Bd7 Nc2 Rb6 R5e4 Rg1 Qf3 Rc1 Ra7 Rdd6 Raa4 Rg2 Qg5 Ba5 Bd4 Qh8 Re5 Rb5 Qgf6 Bb6 Ne1 R1c4 Nc2 Ba7 Ke1 R4c5 Rd1 Rc3 b1Q+ Qb2 Rd2 Rbb6 Qbd1 Qa2 Qb7 Bb5 Qb8 Rbb7 Nb4+ Qc2 Rde2 Kb2 Rd2 Ra2 Qe2 Kc1 Qef3 Ra1 Rde2 Qb1 Rb2 Qa2
nb5R/qN1b1Pb1/2BNQ1k1/4BR2/Q3P3/2BKb2n/1BB5/Bqr1qrq1 b - - 0 1 illegal: No proof kernel
1N2qBBB/1P1rnrRn/1R1rNB2/1Qn1bbB1/1q3Qn1/8/4P2k/3rBK2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Ke7 b4 Kf6 h4 Kf5 b6 Kg4 h6 Kg3 h5 a5 b7 g5 h7 f5 b5 c5 h6 g4 d6 f3 b6 f2+ Kd2 a4 d7 a3 d5 f4 d6 c4 Bh3 f1R Qa4 a2 Na3 f3 Nb5 f2 Nc7 Na6 b8Q Ra7 Nf3 Qe8 d8B Bf5 d7 Nc5 Ng5 Bd6 Nge6 Be5 Qb5 Ne7 Rg1+ Kh2 Rb1 a1R Na6 g3 Ba3 g2 b7 c3+ Ke3 c2 Ba5 c1Q+ Kf3 Rd1 d8B f1N Kf2 Ne3 Be1 Rf8 h8B Rf7 h7 Qb2 Bf6 Rd7 h8B Qb4 Qc7 Ra8 Nb8 Ra6 Bg5 Rad6 Rb3 Ng6 Bdf6 Rad1 Bg4 Ne7 Bh5 Rh7 Bf7 Rg7 Bg8 Rf7 Rf1 g1N Rb1 Nf3 Rg1 Ng4+ Kf1 Nh4 Rb3 Nhg6 Rgg3 Na4 Qc1 Nf8 Qf4 Nh7 Rb1 Qd4 Bc5 Qb4 Rbb3 R6d5 Bd6 Nc5 Rb2 Nc6 Bf8 R5d6 Qbc4 Qd2 Bgh6 Ne7 Rb6 Qb4 Qb5 Nf2 Rg4+ Kh1 Rg7 Ng4 Qd2 Kh2 Bhg5 Qb3 Qd4 Qb4 Qf4+
N3N2b/Q1q2rR1/2Qr1q2/nn3pq1/k1bPNN2/4nN2/P3N3/KBB1r1R1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h4 Kd7 d4 c5 Kd2 b5 Kc2 f5 Kb2 g5 e4 b3 h6 g4 d6 Kc6 e6 b4 e5 c4 h7 Kb5 h5 g3 e7 g2 e8Q+ Nc6 h6 Ra7 d7 Nf6 e6 Ka4 e7 Nd5 Ne2 g1Q Nd2 Qg5 Rg1 Ne3 Ne4 c3+ Kb1 Qb6 d8N Bg7 Ne6 Ba6 Nc7 Bc4 Na8 c2+ Kb2 Rf8 h8N Rf6 h7 Rd6 Ng6 Bh8 Nh4 Qc7 Bg2 Qf6 Nf3 Rb7 Qc8 Na5 e8N Ra7 Rb1 Rb7 Ka1 Ra7 Ba3 c1Q Bh1 Qd2 Rg7 Qc1 Qd2 Qg1 Re1 Qgg5 Rg1 Rb7 Bc1 b2+ Kb1 Qc6 Qb8 Rf7 Qa7 Qc7 Qc3 Nd1 Kc2 b1N Bg2 Ne3+ Kb2 b3 Ka1 Na3 Bf1 Ba6 Qc6+ Nb5 Nf4 Bc8 Bd3 Be6 Ne2 Bc4 Rg8 Bg7 h8N b2+ Kb1 Rfd7 Ng6 Bh8 Ngf4 Rf7 Rg7 Ng4 Be3 Qfg6 Kc2 b1R Bd2 Re1 Kb2 Q5f6 Bb1 Ne3 Ka1 Qgg5 Bc1
1Q4NR/rb1n4/1b1r2q1/1N1RP1r1/2KNQBN1/pn1P1Nkq/4Bn2/4N1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Ke7 e4 Kf6 Ke2 Ke5 Kd3 c5 b4 g5 b6 f5 h6 a5 d6 g4 d7 g3 h7 f3 h5 Kf4 e5 g2 b7 a4 h6 f2 b5 a3 b6 Qe8 d8N Qe7 Nf7 Qg5 Qc2 Kg4 Nd6 f4 Nb5 Nd7 b8N f3 b7 Ngf6 Nc6 Ra6 b8Q Rg8 h8N Ra7 h7 Ne4 Ng6 Bb7 h8N c4+ Kd4 c3 Nf7 Bd6 Rh8 Bc7 Nge7 Bb6+ Kc4 Kg3 Be2 f1Q Nh6 Qg4 Qd3 c2 Qe3 Rg6 Neg8 Rd6 Qd3 Qg6 Ng4 Nec5 Qe4 Nd3 Nh3 g1B Nf4 Qh3 Ng2 Bbe3 Ne1 Bb6 Bb2 c1N Bd4 Nf2 Be3 Nb3 Ra2 Nh1 Rc2 Qh4 Rc3 Qhh5 Rd3 Qh3 Rd5 f2 d3 f1R Ncd4 Rf5 Nd2 Nf2 N2f3 Rg5 Bf4+
3b4/3rR1n1/1NNq2kR/3Rp3/qnB1KPNr/b1BP3R/Q1rRb2n/6N1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 a5 f4 e5 g4 c5 b4 h5 d6 h3 f6 c4+ Ke4 a4 g5 h2 b6 c3 b5 h4 d7 h3 b7 c2 b6 a3 Ra2 Bd6 Nc3 Bc7 Na4 Ra7 Bb2 c1B Bc3 Kg6 f7 Nc6 f8R Rh4 b8N Nge7 b7 Nf5 Bc4 Ng7 d3 Nb4 Rd2 a2 Qc2 a1Q Qa2 Ba3 Re8 Qe7 d8R Qd6 Nb6 Bg4 Rd7 Bd8 Nc6 Be2 b8R Rb7 Rde7 Rd7 Rh8 Qd1 Ra8 Qa4 Ra5 Rg4 Nf3 Rg2 Rd5 Rf2 Rg1 h1R Rg3 h2 Rgh3 Rd1 Ng1 h1N Ke3 Ng3 R8h6+ Kf5 g6 Rb1 Nf3 Rh1 Ng1 Rfh2 Rd4 Kf6 Rd5 Nf1+ Ke4 Rg2 Rg3 Rh4 Re3 Nh2 Rh3 Nh5 g7+ Rg6 Rh7 Rg2 g8N+ Kg6 Nf6 Ng7 Ng4 Bf1 Rd1 Rc2 Rd2 Be2 Rh6+
b1r3Q1/3R4/kPN3rP/1nb4p/4B1NB/nN1q4/1Bbrn1KN/1Bq1N1R1 b - - 0 1 illegal: No proof kernel
4n3/N1N1nBR1/pb1P1q1q/N1PN1r2/4R1rr/B6B/k1B2NQn/3q1bK1 b - - 0 1 illegal: No proof kernel
4R3/1Q1R1bP1/K1NR2Np/4nr1R/2n1rbB1/5BB1/3rP1kq/B2q1Rqb b - - 0 1 illegal: No possible last move
b2Br1r1/PR2n1Q1/3N2R1/1BP3R1/q1Nb2nk/BBpR1K2/r4R2/q4q1n b - - 0 1 illegal: No proof kernel
nn1Bq3/2B5/4NP2/K1n5/N1P1b1n1/1B2bRNp/1rR1B1N1/BQ1rk1nr b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 d5 g4 h5 f4 a5 b6 e5 g6+ Kf6 g7 a4 b7 e4 b5 a3 b6 d3 Kc3 d2 Nh3 e3 Rh2 e2 Bb2 e1N Be2 Ne7 Kb4+ d4 g8B h4 Nc3 d3 Bb3 a2 Qb1 d1R Na4+ Qd4+ c4 d2 Rf2 Qe5 Rf3 Nd5+ Kb5 Bc5 g5+ Ke7 f6+ Kd6 f7 Bf5 f8N Be4 f5 Be3 f6 Nc7+ Kb4 Qe8 g6 Ra7 g7 Na8 g8N Rh5 Rf2 Nf3 Ne6 Ng1 Nhf4 h3 Nh6 Rb5+ Kc3 Ke5 Nf5 Raa5 Rf3 Rb4 Ng3 Rbb5 Qc1 Ra6 Rb1 a1N Ng2 Ra7 Qc2 Ra6 Rc1 Raa5 Ba2 Nb3 Qb1 Nc5 Ba1 Rb2 Bb3 Ra7 Kb4 Ra5 Ng5 Kd4 Rc2 Ra6 Nc3 Ra3 Na4 Ra2 Ka5 Ra3 Ba2 Rd3 Bb3 Rf1 Kb4 d1N Ka5 Nf2 Ne6+ Ke5 Nd8 Rdd1 Ne6 Ng4 Nf8 Nbd7 b8B+ Kd4 Bc7 Nb8 b7 Rfe1 Bd8 Rf1 Nb6 Rfe1 Rd2+ Kc3 Ne6 Nbd7 b8B Rf1 Bbc7 Nb8 Rd7 Rfe1 Re7 Kd2 Na4 Rf1 Nh4 Ke1 Rd7 Rf2 Rd2 Rh2 Rc2 Rh1 Ng2+
1RR1NB2/n2B4/2rP1PQb/1n4N1/5N1q/2k3bn/Kp1brN2/NB2bb1B b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 h4 Kf7 f4 Kf6 d4 e5 Kd2 c5 Kc3 b5 Kb2 g5 a4 e4 h5 g3 h6 c4 d6 e3 d5 g2 a6 c3+ Ka2 e2 h7 e1B a7 g4 d7 b4 d6 g3 a5 c2 a6 Ne7 Qd3 Bf2 Na3 Qc7 d8N Qb6 Nf7 Nd5 Ng5 Bg7 Rb1 Bc5 N1h3 g1N Nf2 Nc6 Bh3 Re8 h8N g2 Ng6 Qd8 Rh2 Rb8 a8B Rb6 a7 Re2 Bb7 Bd7 a8B Na7 Bd2 c1B Nc2 Be6 Na1 Rc6 Bg4 Bf8 Rh8 Bh6 Rb2 Qe7 Rc8 Nh3 Qc2 g1B Ba6 Re3 Bd3 Nc7+ Rb3 Ncb5 Bb7 Rc7 Bh1 Re2 Bde4 Bd4 Qd3 Bh2 Qg3 Bc3 Bb1 Qd8 Qg2 Rc6 Qg1 Kg7 f6+ Kg8 f5 Bg3 f7+ Kg7 f8N Kf6 Qg2 Bc4 Nf4 Ke5 Nfh7 Kd4 Nf6 Qe7 Ne8 Qf6 Nf7 Qh4 f6 Bd3 Rb2 Kc4 Be3 Be1 Bd7 Bcd2 Ng5 Kc3 Qe4 Bc2 Qg6 Be4 Bb6 Bg2 Bd8 Bf1 Be7 Bf8 Bbe4 Bh6 Bf8 b3+ Kb1 Nc7 Ra2 b2 Ra5 Bg7 Rb5 Bh6 Rbb8 Ncb5 Ka2 Kd4 Bc2 Kc3 Bb1
2KN1r2/R3r3/3pPqb1/2NrBBNk/Q2b1nNR/2RN1n2/P6R/1rb1r3 b - - 0 1 illegal: No possible last move, all moves rejected
RnR1N1nn/1K1kb3/1p2n3/P1RNP2B/br1r4/1n1rQR2/3Bq1N1/2R2N2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 g5 Ke3 f5 Kd4 f4 a4 b6 e4 c6 h4 g4 d6 f3 e6 f2 e7 b3 h6 c5+ Kd5 c4 d4 b2 e5 c3 a5 c2 h7 g3 h5 g2 d7+ Kf7 e8N Ke7 h6 Ra7 Nf3 g1N Nbd2 b1R Qe1 Ra6 Be2 f1N Rh3 Rb3 Nh4 Rb4 Rf3 Qc7 d8R Bd7 Rc8 Ba4 Ng2 Qc3 Rc5 Nh2 Nf1 Kd7 Bd2 Ra7 Rc1 Ng4 Bd1 Nh3 Qe3 Qd3 Be2 Kd8 Bd1 Re7 Kd6 Nf4 d5 Ne6 Be2 N8f6 Bd1 Rg8 h8N Qe2 h7 Nh6 Ng6 Reg7+ Ne7 Rg3 h8R R8g4 Rb1 c1N Rg8 Nb3 Rbc1 Rgd4 Rh8 Na6 Rg8 Rb5 Kc6 Nf7 d6 Rbb4+ Kb7 Nb8 d7 Nh8 Nd5 Rh3 Ndf4 Ke7 d8R Rg3 Rdc8 Kd7 Nd5 Be7 Bc2 Rh3 Bg6 Rg3 Rf8 Ng8 Bh5 Rgg4 R8f4 Rd3 Rfc4 Rgd4 R4c2 Na6 Ra8 Nb8 Rc8 Nc6 Rc4 Nb8 R4c5
nR1bR1qN/1bBP2nR/1Nr5/1R3P1b/b1b1B3/k3pB2/B1r1nQ2/1B1K4 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 a4 Kd6 d4 b5 g4 e5 g6 c5 f6 h5 f5 c4 g7 c3 f7 h4 g5 e4 a5 b3 g6 c2 a6 h3 a7 h2 Be2 b2 Nd2 b1B Bf3 b4 Ne2 b3 Ra5 b2 Rb5 Be7 f8R Rh6 Re8 Nd7 Nf4 Bb7 Qe2 Nb6 Qf2 Rc8 a8B Nf6 g8B Ba2 g7 b1B Ng6 Nh5 Nh8 Bc4 Bb2 c1N Kd1 e3 Be4 Kd7 d6 Ne2 d5 Rc6 Be5 Bc2+ Ke1 Rc7 Bf7 Rc5 g8B Ng7 Bh5 Qb8 Bhf3 Ba4 Bb1 Bd8 Bg3 Ba2 Be5 Rc2 Nc4 Rf6 Kd1 Rg6 Re1 h1B Bf4 Bg2 Rh1 B2b3 Be4 Bf3 Rh7 Bh5 Bh6 Kc8 d7+ Kc7 Bf3 Rc6 Be6 Nc8 Nb6 Kd6 Bg5 Bc4 Bh4 Ke5 d6+ Kd4 Bg3 Kc3 Be4 Bcb3 Bh2 Kb2 Bf4 Ka3 Bf7 Be7 d8R Bc4 d7 Bf6 Bc7 Be7 Nd5 Nb6 Rc8 Bd8 Be6 Qa7 Rb8 Qa5 Bf7 Qb4 Bg8 Qf8 Be6 Qg8 Bf7 Bc8 Bb7 Na8 Nb6 Rh6 Bbd5 Bb7 Bf3 Rc6 Bde4 Bd3 Bb3 Bc4 B3a2
2B3b1/N3Rr1R/rBRbn1b1/3Bk2B/1RbQn1RN/n1qr1p2/6PP/5K2 b - - 0 1 illegal: No proof kernel
K4R2/b1B1q3/3RN3/2b3b1/1r2nNP1/kN3bRr/Rnp1B1Pr/2NNQ2n b - - 0 1 illegal: No possible last move, all moves rejected
R1rnr1bB/kNQ1N2N/5r1n/2R2B2/4Pr2/Nn1pP2B/1b6/NbqB3K b - - 0 1 legal: proof: h4 b5 d4 g5 hxg5 e5 a4 c5 axb5 cxd4 f3 e4 fxe4 Bb4+ Bd2 Be7 Bc1 Bf8 Kf2 f5 b4 d5 g4 Kd7 Kg2 Kc7 c4 Kb6 c5+ Kb7 b6 a5 e3 h5 g6 d3 c6+ Ka6 g7 a4 b7 h4 g5 a3 g6 f4 b5+ Kb6 c7 d4 Qc2 a2 Nh3 d2 Bb2 d1B Ng5 d3 Nh7 Ra7 Na3 Nd7 b8N Ra8 Na6 Ka7 Nb4 Nb8 Rb1 Be6 c8B Nh6 g8N a1N g7 Nc6 Ne7 Qc7 g8B h3+ Kg1 Bc4 Bf5 f3 Qh2 Bf7 Nbc2 Nb3 Na1 Re8 Be5 Bc2 b6+ Ka6 b7 Nd8 b8N+ Ka7 Nd7 Bg7 Rb2 Bb1 Nc5 Be6 Nb7 Qc1 Qc2 f2+ Kh2 Bd5 Qc7 Bf6 Be2 f1R Bge6 Rf4 Bd1 Rhf8 Bc8 Bg8 Rf1 Rf7 Kh1 h2 Rc2 Bh8 Rc5 Rf6 Rf2 Bg7 Rb2 Bh8 Bh3 Bg7 Bcf5 Bh8 Kg2 h1R Bc3 Rhf1 Be5 R1f3 Kh1 Rff8 Bd6 Bd4 Be5 Rf2 Bh8 Rf6 Rbc2 Bb2 R2c4 Rc2 Rd4 Nc6 Rd8 Rc3 Rc8 Nd8 Rb8 Rf3 Qd7 Rc4 Rd5 Rc7 Rc5 Rc8 Qc7 Rf4 Ra8+
1BrnN1N1/K5R1/1RN4p/R2Pr3/b1R5/3nkrRB/n1QNP3/b1qn2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 d4 Kd6 b4 c5 g4 a5 g6 f5 g7 c4 g5 a4 b6 h6 b7 a3 b5 c3 g6 a2 b6 f3 Ke3 c2 Bh3 f2 Na3 f1R Nf3 Nc6 b8N Nge7 g8N Ra5 b7 Rb5 g7 Qc7 Rg1 Nb4 Nc6 Nd3 b8R Bd7 Rg3 f4+ Ke4 Rc5 Nd2 f3 Rb6 f2 Bb2 c1N Qc2 Re1 Bc3 f1N Bb4 Ne3 Bc3 Qc8 Nac4+ Kc7 Ba5 Rf1 Nd6 Nd1 Bb4 Rf3 Ba3 Bg4 Ne8+ Kd7 d6 Ke6 d7 Rcf5 Rab1 a1B d8R Na2 Rd5 Rh5 Bd6 Qc7 Na5 Nc6 Rc1 Nd8 Nc6 Qc8 Bb8 Bc5 Nge7 Rhf5 g8R Bh5 R8g7 Bf7 Nd6 Be8 Re5+ Kf6 Kd5 Rg5 Kc4 Qc7 Rd5 Re5 Kb5 Bd7 Ka6 Re8 Na5 Ba4 Nac6 Qc8+ Ka7 Rg8 Bg2 Ke6 Ne8 Rgf8 Ng8 Kf5 Nb3 Kf4 Bh3 Ke3 Nd2 Qe6 Rdd7 Qc4 d5 Qc3 Rc7 Qa3 Rb1 Qc1 Rc8 Kf4 Rb5 Bg1 Ra5 Ke3 Rcc7 Ne6 Nd6 Rc8 Ne8 Nd8 Rcf7 Nb7 Rf4 Nd8 Rc4
nn3N1B/3bQ1N1/2B1qRP1/r2r2PB/Bb3r2/2B1p3/2KbBn2/3Q1nkR b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 c5 hxg5 Nc6 dxc5 Nb8 Kd2 Kf7 g4 Kg6 c4 h5 f4 d5 a4 b5 c6 e5 c5 h4 f5+ Kf7 c7 h3 a6 e3+ Kc2 h2 a5 b4 a7 d4 f6 Ke6 f7 Kd5 g6 Ke4 g5 e2 c6 e1B a6 Qd6 Nd2+ Ke3 Nh3 e4 Bb2 Ne7 Nf3 Bh6 f8B Bd7 c8B Qe6 c7 Nd5 Bg7 Bd2 Bc3 Rf8 Nh4 Rf4 Bh8 Bf8 Be2 Nb6 Ra5 Bd6 Rf5 Be7 Rf6 b3+ Kb1 b2 Kc2 b1N Bb7 Rf3 c8Q Bb4 Nf4 Kf2 Qc5 e3 Bc6 d3+ Kb2 Rg3 Nf5 Rg4 Qe7 Rh4 Ng7 Rg4 Nd5+ Rf4 Ba4 Kg2 Nc7 Kf2 Re1 h1N Rf1+ Kg2 Re1 Nf2 Rh1 Be1 Bh5 Nd2 Kc1 Nf1 Kb1 d2 Kc2 Qg4 Nce6 Qh3 Nf8 Qe6 Qa1 d1R Qc1 Rd5 Qd1 Bd2 Be2 Nc6 Bh5 Rc8 a8B Nb8 a7 Rc5 B8c6 Ra5 Bcb5 Na8 Bbe2 Nc7 Rh3 Kg1 a8B Bc8 Rh4 Bd7 B8c6 Na8 Rh1+
R4R2/1k4rn/r1qbPB2/2bn1br1/4B2p/R1PBN2R/1R1K2n1/1N1QBb2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 e4 a5 b4 d5 g4 Kd7 e6+ Kc7 b6+ Kb7 e5 f5 b5 h5 e7 a4 e8B h4 g6 a3 g7 a2 g5 d3 g6 f4 Qf3 Nf6 g8R Bd6 g7 Nh7 Bb2 Nc6 Nh3 d4 Kd2 Qd7 Qd1 f3 Nf4 f2 Bg6 Nb4 Rh3 Qc6 Nd5 Bf5 e6 Ra6 Ne3 Nd5 Rf8 Rg8 Bg2 f1B Be4 Bc5 Ra8 Rc8 g8R Rc7 Rgf8 Rg7 Bc3 Bd6 Kc1 Bc5 Be1 Bd6 c3 d2+ Kc2 Bc5 Qe2 d1R Qf3 Rd3 Qd1 Rd2+ Kc1 Rg2 Bd3 Rg5 Kd2 Qc8 Be4 d3 Ra7+ Kb8 b7 Kc7 b8B+ Kb6 Beg3 Qc6 Ra8 Kb7 b6 Bd6 Be1 Bc5 Kc1 d2+ Kc2 Bd6 Bd3 Bc5 Be5 Bd6 Bf6 Bc5 Qe2 d1N Kd2 Bd6 Ng4 N1e3 Qd1 Ng2 Ne3 Bg4 Bge4 Bf5 Be7 Bc5 Bf6 Bg4 Rae8 Bf5 Bd8 Kb8 b7 Ka7 b8R Bd6 Rb2 Bc5 Rc2 Kb7 Bf6 Bd6 Ra8 Bc5 Na3 Bd6 Rac1 a1B Ra2 Bb2 Rb1 Nb6 Rba1 Nd5 Nb1 Bba3 Rc2 Bab4 Ra3 Bbc5 Rb2+
5BRn/q2p1Rb1/bnBQPnrr/1R6/1RP2r1k/3B1N2/r1B4b/1N2R2K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 g4 h5 Kg2 a5 e4 f5 c4 a4 b4 h4 e6 h3+ Kh2 a3 g6 Kf6 e7 a2 e8B f4 b6 Kg5 g7 d3 b5 d2 b7 f3 e5 f2 e6 Kh4 g5 Nf6 g8B Qa5 b6 Qa7 g6 Rh6 g7 Rg6 Bg2 f1R Bh7 Rf4 g8R Bd6 Ba3 Nc6 b8R Ba6 b7 Nd8 Bc6 Nf7 Bb4 Nh8 Nf3+ Kh5 Rf1 Be5 Qe1 d1N Qd2 Nb2 Bf8 Na4 Kh1 h2 Qd6 Nb6 Bf7 Kg4 Re1 Rg5 Bc2 Rg6 Re8 Kg3 b8R Kh3 Re7 Kg4 Kg2 h1R Be8 Rh6 Rf7 Nc8 Rb5 Nb6 Ng5 Kh4 Kh1 Rf3 Rb4 Bh2 Re5 Rf2 Reb5 Rf4 Nf3+ Kg3 Na3 Kh3 Re1 a1B Nb1 Kg4 Ng5 Kh4 Nf3+ Kh3 Ne5 Rb8 Bg2+ Kh4 Rh7 Ng4 Ra5 Rg7 Bc6 Nd5 Rba4 Rb2 Rb5 Nb6 Rab4 Ra2 Beg6 Bb2 Bgd3 Rg6 Nf7 Bd4 Ng5 Bf6 Re7 Bg7 Rf7 Nf6 Nf3+
rqrBn3/1BN2q2/N1kn4/1N2P1b1/1B1rr2Q/P7/brN1pBKR/B5R1 b - - 0 1 illegal: No possible last move
2K1RB1Q/1N1rNRn1/2BBb1q1/2R1P3/b2r1B1p/PBq4b/2R5/bb2nk2 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Ke3 b5 Kd4 h5 g4 f5 e4 c6 d6 Ke6 Kc5 b3 d4 h4 d5+ Kd7 g6 b4 g7 b2 a3 b3 g5 f4 e6+ Ke8 e7 Kf7 e8R Kg6 Qd4 Kh5 g6 Kg4 Rh2 Kg3 Bb5 f3 Nh3 f2 Ng5 f1B Rc2 Qf6 Kb6 c5 Kc7 c4 d7 c3 d8B Nc6 d6 Rh7 d7 Nb4 Be7 Nd3 d8B Ra4 Nf7 Ne1 Bc6 Bfh3 Nd6 Nh6 g8B Bg7 Nb7 Nf5 Bf8 Be6 Bde7 Kf3 Qe5 Rd4 Bd6 Bh8+ g7 Qg6 Bd2 Kf2 Bf4+ Kg1 Bf7 Kf1 g8R Bf6 Ra2 Ng7 Rc1 c2 Nc3 b1B Nd5 b2 Ne7 Bd7 Bb3 Bde6 Rd1 c1Q Rd2 Bc4 Rc2 Bce6 Rc5 Bc2 Kd8 b1B Rh8 Bd3 Rac2 Bb5 Qh5 Ba4 Rg8 Nf5 Rg7 Qb2 Rf7 Qc3 Kc7 Rg7 Qh8 Rh7 Bg3 Ng7 Bdf4 Rh5 Bd6 Rhd5 Bdf4 Rd7+ Kc8 Bg5 Bd6+ Bf6 Bgf4 Rb4 Nd5 Qd2 Nb6 Ba1 e5 Rd4 Nd5 Qc3 Ne7
2RR4/R2n4/n1pbNNNq/n4k1r/1Pn1b3/3QBrn1/RP6/qN1K2NB b - - 0 1 legal: proof: h4 d5 e4 b5 c4 g5 cxd5 gxh4 a3 f5 exf5 b4 axb4 Ba6 Qe2 Bb7 Qd1 Bc8 d4 Kd7 g4 e5 f4 a5 g5 h5 g6 c6 d6 h3 f6 Ke6 d5+ Kf5 f7 h2 d7 h4 g7 a4 d6 e4 Bb5 a3 Qb3 e3 Qd1 e2 Nf3 h3 Ba4 a2 Be3 Qg5 d8R Rh5 d7 Nf6 g8N Bd6 f8R Na6 Rfe8 Qh6 Ng1 Ra7 Kd2 e1N Bb3 Nd3 Bd5 Ne5 Qf3 Nc4+ Kd1 Ng4 Nf6 Nge5 Rf8 Rc7 Rde8 Ra7 d8N Rf7 Ne6 Nd7 Rg8 Rf8 Rd8 Rf7 Ne2 Rf8 Rf1 h1N Ng1 h2 Qe2 Ng3 Bh1 Na5 Qd3+ Ne4 Rh8 Ne5 Rh7 Nec4 Ra7 Bd7 Rf2 Be8 Rg2 Bg6 Rc8 Bh7 Rg8 Rf7 Rgd8 Rf8 Bf3 h1N Bg2 Ng3 Bh1 Bg6 Ne8 Kg4 f5 Nec5 f6 Nd7 f7 Be4 Nf6+ Kf5 Ng4 Rg8 Nf6 Rg4 f8N Rf4 Ng6 Rf3 Nc3 Bf8 Rc1 a1Q Nb1 Be7 Rc3 Bf8 Ra3 Bd6 Ra2
b1b2Rb1/K4NBk/NP1q2bN/1Q1p2P1/1R2q1Br/6b1/1NNn2N1/3nr1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 Kd3 h5 Kc4 f5 e4 Kf7 b4 Kg7 g4 h4 b6 d5+ Kb5 h3 c4 f4 e6 h2 e5 a4 c5 a3 c6 a2 c7 d3 b7 d2 Kb6 f3 b5 f2 e7 Ra3 e8N+ Kh7 e6 Rc3 g6+ Kh6 g7 Qe7 g5+ Kh7 Be2 f1B Bg4 Nh6 g8N Na6 b8N Bd3 Na3 Nc5 Nd6 Bg6 Nh3 Ne4 Nc2 Re3 Nf7 Re1 Ka7 Qd6 b6 Nf5 e7 Ne3 Rb1 a1Q+ Na6 Qae5 Rf1 h1B e8Q Bb7 c8N Ba8 Nf4 Be7 Qe2 d1B Ng2 Nd2 Bb2 Qe4 Qf2 Be2 Bd4 Nd1 Qb5 Bd8 Bf6 Bc7 Ngh6 Bc4 Rb4 Bd3 Nf4 Bf3 Bg7 Bg2 Qg1 Bh3 Ne5 Bf7 Ng2 Be6 Nc4 Bg8 Bf3 Bf5 Nb2 Bg6 Bg4 Be2 Bh5 Bg4 Rf8 B4f5 Bg4 Bd7 Ne7 Bc8 Nf7 Qf6 Be6 Bg3 Bg4 Qd6 Nf5 Re2 Bc3 Re1 Nfd4 Kg7 Rc4 Rh4 Rb4 Qc5 Nf5+ Kh7 N5h6 Qd6 Bg7
4RR2/2P4q/RqNNB3/b1k1q1rQ/qPnp4/R1r1N3/2Nq1B2/K3n1Nb b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 f4 Ke7 h4 Kd6 c4 g5 Kc2 a5 b6 g4 b7 g3 f6 g2 f5 a4 h6 e4 h7 e3 h5 a3 h6 e2 f7 e1Q f6 a2 Nd2 Na6 b8N Ne7 Rh3 Qe5 Nc6 Nc5 Qh5 Nd5 Ra3 Rg8 h8N Nd3 h7 Nb6 c5+ Kd5 Nc4 Bb7 Bg5 Qde7 Be3 Rg5 Bf2 Rc8 Kb3 Bg7 f8N Ne1 f7 d3 Ne6 d2 Ned4 d1Q+ Nc2 Qd2 f8R d6 Nf7 Rc7 Rb1 a1Q h8R Bf6 Ra6 Qd7 Re8 Bd8 Rhf8 Qdf5 Be2 Qh7 Bg4 Qaa5 Bf5 Qab4+ Ka2 Qa4+ N4a3 Rc8 Ra1 Nc4 Bh3 Ba5 Be6+ Ke4 Kb1 d5 Ne3 d4 Nac2 Rc7 Nh3 g1Q Ra3 Qgh2 Ka2 Qf6 Ka1 Qhe5 Ng1 Qd8 Qd1 Rc8 Qh5 Qb6 Ra2 Rc7 Nd6+ Kd3 Nd8 Bh1 c6 Rf7 c7 Rf3 Nb5 Ke4 Ra3 Rfg3 Ng2 Rc3 Nc6 Kd3 Nge3 Nd6 Nd5 Kc4 Nde3+ Kc5 Bg3 Qd5 Bf2 Nc4 Nd6 Qe5 b4+
3k1QN1/P2NN3/N4q1P/3K1bb1/7p/rNrQBBN1/1r4rR/Rqnr3n b - - 0 1 illegal: No proof kernel
1k6/2B1qQ2/3RB1Kn/1r2bn1Q/1n1B1Bb1/B2r1NB1/qP2np1P/N2bR3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 d4 a5 e3 f5+ Ke5 g5 e4 g4 h6 a4 h7 f3 Bc4 g3 Bg5 f2 Nd2 f1B Bf4 g2 Ngf3 g1N Nb3 Na6 d6+ Kb8 d5 a3 b6 a2 b7 Be2 d7 Nb4 d6 Ra5 Be6 Qe7 d8B Rb5 d7 c4+ Qd5 c3 Rd1 c2 Na1 c1N Bc7+ Ka7 d8B Nb3 Bg3 f4 Kf5 Bg7 e5 Nh6+ Kg6 Nd4 Qb3 Re8 h8B Ndf5 Rd6 Bd1 b8B+ Ka8 Qc4 Ne2 Re1 Bf6 Bg7 Bd7 Bf8 Bh8 Bb6 Bg7 Bdc7 Rd8 Bd4 Bh8 Nb3 a1Q Qc5 Qa2 Na1 Ra5 Qb5 Bc8 Qe8 Rb5 Qf7 Bg7 Bb3 Kb7 e6 Be5 Bc4 Qe8 e7 Be6 Ng5 f3 Bf4 f2 Nf3 Qd7 e8Q Qe7 Bb3 Ng7 Bg3 Bg4 Be6 Rd7 Qf5 Rd8 Qh5 Ngf5 Qf7 Rc8 Bcb6 Rc3 B8c7 Rd3 Bbc5 Nc2 Ba3 Nb4 Bg7 Ka8 Bf6 Kb7 Bg5 Ka8 B5f4 Kb7 Bcb6 Kb8 Bc7+
K1B1rRR1/1n2N3/B3Q3/7q/BnB1pb2/R1B2k2/rPbP1qNq/1b3R1b b - - 0 1 illegal: No proof kernel forced: bxDB
1Q1bN1r1/1n5B/bk3RB1/1b1n4/P1BR1q2/1PRNRn2/q1p2rB1/4B1bK b - - 0 1 illegal: No proof kernel
2nb2KQ/R1k1q1nr/2n5/3P2Bq/2RQ1n2/1bPBp1B1/2q3NB/1NB1B1r1 b - - 0 1 illegal: No proof kernel
1qQ2rb1/b5N1/2Br1B1B/bB1pRBP1/1n2B2k/2Q1q1P1/2qR3b/N2n3K b - - 0 1 legal: proof: e4 a5 d4 f5 h4 fxe4 b4 g5 bxa5 c5 hxg5 Nc6 dxc5 Nb8 c4 Kf7 a4 Kg6 f4 h5 Kf2 b5 a6 e5 a7 h4 a5 h3 a6 h2 c6 b4 c7 b3 c5 d6 c6 b2 Ra5 Rh6 Nh3 Be6 c8Q Ne7 c7 Nbc6 Qd4 Kh5 f5 Bg8 f6 Nb4 f7 Nf5 Bb5 Kh4 Na3 b1Q Rd1 h1Q Nc2 Ne3 Na1 Qc2+ Rd2 Rb8 Bb2 Qhc1 a8B Nd1+ Kg1 Be7 Rf2 Qe3 f8B Rf6 a7 Rb6 Qb7 Qb8 Bh6 Rf8 c8B Bd8 Bcd7 Bc7 Qc8 Rc6 Bb7 Bb6 a8B Ba7 Qc3 Ra6 Ra3 Rb6 Nf4 d5 Kh1 Rd6 Ne6 Qg3 Ra6 e3 Rd2 e2 Ng7 e1B Bf5 Qe3 Be4 Bg3 B7c6 Bh2 Bd7 Rf4 Bac6 Rf8 Bh7 e4 Bdf5 Qeb6 Ra3 e3 Be4 e2 Bhf5 Qe3 Ra6 Bd4 Ra7 e1B Re7 Bc5 Re5 Ba7 Ba3 Na6 Bc5 Nb4 Bb6 Rf7 Bd8 Rf8 Bf6 Re6 Qc5 Na2 Rf2 Ba5 Rd2 Nb4 Qc3 Rd6 g3+
krr4n/4B1K1/1nR1q1R1/3p1NPN/2R1qbn1/1P3N1b/2N1RN1r/Q2B1r2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 e5 Ke4 h5 c4 d3 g4 d6 f4 Kd7 g6 Kc7 g7 Kb7 b3 a4 b6 d2 f6 a3 c5 h4 g5 h3 f5 h2 f7 a2 f6 Bd7 c6+ Kc8 c7 Kb7 c8N Nh6 g8R Bg7 f8R Bb5 f7 Qf6 Re8 Bc4 f8N Ra5 Be2 Rb5 Nh3 Ka8 Nh7 Qe6 Ne7 Rc5 Nf2 Rc8 Nf6 Nf7 Nf5 Nd7 Nh5 Ba6 Bf3 Bf1 Na3 Bh3 Nc2 Bf6 Qf1 d1N Ba3 Ne3 Rg6 Ng4 Rc1 a1R Bd1 Be7 Rg1 h1R Bc5 Rh2 b7+ Kb8 Rg3 Nb6 Rc3 Bf6 Rc4 d5+ Kf3 e4+ Kf4 e3 Be7 Ka7 b8N e2 Nc6+ Ka8 Ne5 e1Q Nf3 Rg8 Qh1 Qb4 Qe1 Nh8 Qe5 Rb1 Qa1+ Qa4 Rd8 Rb8 Rd6 Rge8 Rc6 Rec8 Re4 Bd4 Re2 Bf6+ Nb4 Bd4 R1c4 Rc1 Nc2 Be3+ Kg3 Rb1 Kh4 Bc1 Nhg7 Bf4 Kh5 Ne5 Kh6 Ng4+ Kh7 Rc1 Nh5 Rb1 Kg7 Rc1 R4c5 Rb1 Na3 Qae4 Rc4 Rc1 Bc2 Re1 Bd1 Rf1 Nc2+
BN1B4/2r1R2r/K3R1qP/2PbRbN1/1q3nn1/2bRR3/1q3pbQ/B1k4B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Ke4 b4 g5 b6 a5 Kb5 f5 c4 d5 c5 a4 h6 a3 b7 d3 h7 f4 e6 d2 h5 Ke3 e7 f3 e8B f2 h6 a2 Na3 g4 Bg2 g3 Rh5 d4 Bec6 d3 Nc4+ Kf4 e4 Ra3 e5 Qd6 e6 Na6 b8R Bg7 e7 Qg6 e8R Bf5 Re7 Bc3 Nf3 Nf6 Nce5 Ke3 Ng5 Ng4 Bh1 g2 Rbe8 g1Q Ba8 Qe1 Re6 Ra4 R8e7 Nc7+ Kb6 Ra7 b5 Rc8 Qb3 Ke2 h8B d1B Qb2+ d2 Nd7+ Kd3 Nb8 Bf3 Qb4 Kc2 Qf4 d1B Qh2 Bb7 Rb1 a1Q Rb3 Qa2 Bf6 Bbf3 Bb2 Bd5 Ba1 Kc1 Rh3 Qb1 Rhe3 Qb2 R6e5 B1f3 R5e6 Be5 Rbd3 Bc3 R6e5 Rh8 R7e6 Bg2 Bd8 Qg8 Re7 Rh7 R5e6 Qg6 Re5 Ne8 Ree3 Rc7 Ka6 Ng7 b6 Nh5 b7 Qg7 Nd7 Qg8 b8R Nf4 Rb4 Qg7 Nb8 Qg6 Rbe4 Qed2 Re5 Qb4 Nd7 Qdb2 Nb8
B1R2BR1/r2b1q1B/rQrq2P1/5k1K/2B1b2B/bP1Nbp2/n4NB1/3n2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 Kg3 Ke6 Kg4 d5 c4 a5 e4 f5+ Kh5 h6 g4 a4 b3 a3 b6 a2 b7 f4 g6 f3 c5 d3 g5 d4 g7 d2 g6 d3 c6 Qd7 c7 Qe7 Bg2 Qe8 Ne2 Ra7 Nbc3 Bd7 c8B Ne7 g8B+ Qf7 Ba3 Nf5 Nc1 Bb4 Qg1 d1Q Bh7 d2 Nd3 Nc6 b8B Ne3 Ba6 Rc8 Rc1 a1B Bd6 Bb2 Be7 Bc5 Bh4 Nb4 Rc2 Na2 Bc4+ Nd5 Bb4 Be3 Bf8 Ba3 Rh2 Rc6 Rc1 Qe1 Nd1 Qg3 N1f2 d1B Rh1 Bc2 Rh2 Bc8 Rh3 Kd7 Rh2 Ndc3 Rh1 Nd1 e6+ Ke8 e5 Bd7 e7 Rca6 Nc5 Be4 Ncd3 Qgf4 Bd5 Q4f6 Ba8 Qd6 Rc5 Bdc6 Rh3 Kd7 e8B+ Ke6 Rc2 Ba4 Rc8 Kf5 e6 Bd7 e7 Be6 Bb5 Bd7 e8Q Rc6 Bg5 Raa6 Kh4 h5 Qd8 Ra7 Qb6 Ra6 Rh1 Ra7 Kh3 h4 Bc4 Qc5 Kh2 h3 Kg3 h2 Kh4 Qd6 Kh5 Ndc3 Qb1 Nd1 Re1 h1R+ Bh4 Nb2 Re2 Rc1 Rd2 Rc3 Qg1 Nd1 Bfe7 Ra6 Rg8 Rc7 Bf8 Rc1 Rc2 Rca7 Rc3 Rc2 Bcd5 Rc1 Rc8 Rc6 Bc4
1N2k3/3q2n1/Qb1R2PR/2RBP3/2rpn3/q1Rqb3/NbBBR2K/5Brb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 bxa4 d4 Qf6 dxc5 Qd8 Kf2 d5 Kg3 f5 b4 h5 c4 a5 e4 d4 g6 h4+ Kh2 f4 g4 h3 b5 a3 g7 f3 c6 a2 b6 a4 g5 f2 c5 a3 c7 Ra7 e6 Nh6 g8B Qd5 g6 Bb7 c8B Ra6 c6 Nd7 c7 Nf5 e7 Nf6 Bd2 Qd7 Bd5 Ng7 Nf3 Ra4 Ne5 Rc4 Qe2 Rh5 Qd3 Rg5 Nc3 Rg1 Rc1 a1B Nc6 a2 Nb8 Bb2 e5 a1B Na2 Ne4 Rc3 Ba8 b7 Bc1 Qe2 Bab2 Qd3 Qa4 Bf5 Qd7 c8R+ Qd8 Be1 Be3 Rc5 Qd6 Bd2 Qd7 Bg2 f1Q Qe2 Ra4 Qa6 Qd3 Bf1 Rc4 Rc1 Qa3 Rc3 Nd6 Bb1 Ne4 Bc2 Qb4 Bb1 Qda4 Rc6 Nf5 Nd7 Ba3 Be6 Beh6 Bf4 Ned6 Bg5 Ng7 b8R+ Nc8 Rb7 Nd6 Nb8 Qd1 Bg8 Qd3 Bc1 Qc5 Rb2 Be3 Re2 Bb2 Bd2 Qa3 Bc2 Bb7 Rc7 Bg2 Kg3 h2 Bd5 Ne4+ Kh4 Bf3 Nc6 Bg2 Rc8+ Kd7 e8R Bc5 Re6 Bb6 Rf6 Bf3 Nb8+ Ke7 Rc5 Ke8 Kh3 Rg4 Rg1 h1Q+ Rh2 Rg5 Rg2 Rg4 Re2 Rg1 Rd6 Qg2+ Kh4 Qf2+ Kh3 Bh1 Rg2 Qf8 Rg4 Qf2 Rh4 Qf5+ Kh2 Qd7 Rh6
3b1r2/2QB2Bb/5Rp1/qR3B2/4n3/qbBK1P1k/RNPnRR2/2q1rNq1 b - - 0 1 illegal: No possible last move, all moves rejected
2n1N2K/4b3/1Bb3pB/PBBQkrr1/B2qP1n1/1Rb2b2/2B3qn/N1RQ4 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 a6 Kd7 Kf2 b5 Ke3 c5 Kf4 f5 d4 c4 a4 b4 h4 c3 Rh3 g3 a5 c2 h5 g6 h6 b3 e6+ Kd6 e7 g2 Kg5 f4 h7 b2 a7 f3 Nd2 b1N Ne4+ Kd7 d6 Ke6 d7 f2 d5+ Ke5 d6 Nf6 e8B Ba6 Nf3+ Ke6 Ne1 Bb7 Rb3 Be7 Kh6 g1Q Kg7 Ng4 Nf6 Ke5 e3 Qb6 d8B Qg2 d7 Qd4 Bb6 Nc6 d8Q Nd2 Ba3 c1B Nc2 Nf3 Bac5 Bd2 Rc1 Bc3 Na1 Rf8 h8B Rf7+ Kg8 Rh7 Ba6 f1B Bg7 Rh5 Bh6 Be2 Kh8 Nfh2 Qd7 Rc8 a8B Rg5 Bd3 Na7 e4 Bf3 Bc2 Bd5 Bc6 Ra8 Ba4 Rc8 Qh1 Rc6 Qe1 Nc8 Qd1 Re6 Qd8 Bb7 Beb5 Bc6 Ne8 Rf6 Qd7 Rff5 Qd5+
1b6/k1n1RR1b/1n2BP1N/RBB1pq2/5P1K/1R1nr2Q/b5bq/N1R3Br b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 Kd7 f4 a5 Kf2 h5 d4 c5 b4 Kc7 g5 Kb6 d6 e5 g6 a4 f6 a3 d7 h3 Kg3 c4 g7 h2 d5 a2 d6 c3 Nf3 c2 Nbd2 Kb7 b6 Na6 b5 Nb4 Ba3 c1N Nd4 Ra6 Qf3+ Nd5 N2b3 Kb8 b7 Nc7 Nf5 Nd3 Nh6 Ne7 g8B Ned5 Kh4 Nb6 Be6 Ka7 Bc5 Ra3 b8R Qe7 d8R Qd7 Rc1 a1Q Re8 Qb2 Re7 Qa2 Rg1 h1B Na1 Qh2+ Qh3 Be4 Rgg7 Bh7 Rgf7 Bb7 Rc8 Bd5 Bg1 Ba2 Ra8+ Kb7 Ra5 Qc8 Kg5 h4 d7 Kb8 d8B Kb7 Re8 Bd6 Be7 Rc3 Bf8 Rb3 Ree7 Kb8 Qe3 h3 Kh4 Qd7 Bg2 Qc8 Bb7 Qd7 Ba6 Ka7 Bc4 Qf5 Be6 Qg2 Qf3 h2 Qh3 h1B Rd7 Ba3 Bfc5 Qh2 Rde7 Bg2 Bcf2 Kb8 Be3 Bd6 Bc5 Na4 b6 Rc3 b7 Nb6 Rd7 Ka7 b8R Nb4 Rbf8 Re3 Rde7 Nd3 Rg8 Qh1 Rg3 Qh2 Bd7 Na8 Rf3 Bb8 Be6+ Nc7 Rf2 Rg8 Rb2 Rgg3 Rb3 Re1 Bgf2 Rh1 Bg1 Re3 Bb5+
3bn1NK/2n2b2/1BqP1r1Q/1b1Q3N/1B3pn1/RBrB4/4BPqR/Bb3k2 b - - 0 1 illegal: No possible last move, all moves rejected
b1q1q3/BN3kB1/3P1bRb/4P3/rQ2R1RB/qn2r2B/pN3K2/B2b1Rn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 b4 f5 d4 c5 e4 g5 e5 c4 b6 a4 h6 g4 h7 f3 h5 f4 b5 g3 h6 c3 d6 g2 d5 c2 b7 a3 b6 a2 d7+ Kf7 d6 Ra7 Nd2 Nf6 Kf2 Nh5 Nh3 Qe8 d8B Be7 Rg1 Nc6 b8B Bf6 b7 Bg4 Qe1 Ng3 Nc4 Ne2 Nb2 Ra4 Qb4 Ncd4 Ba7 Nb3 b8R Rf8 Bce3 c1Q h8R Qc8 h7 Bh5 Rd1 Rg8 Ra8 Rg3 Rg8 Bg4 h8B Bh5 Rh1 Ng1 Bed4 Bg4 Rd3 Bh5 Re3 Bg4 Ke1 Bh5 Rg4 f2+ Kd1 f3 Nf4 Rh3 Bg7 Rg3 Nfd3 Rh3 Be2 f1B Nc5 f2 Ree4 Re3 Bf3 Bb5 Nb7 Bc6 Rg6 Bg4 Rh4 Bh5 Rhg4 Bd5 Be2 Bc6 Bb5 Bd5 Bd7 f1Q+ Qe1 Qa6 Qb4 Rg3 Ke1 Re3+ Kf2 Qd3 R4g5 Bd1 Bh3 Qdc3 Rgg4 Qc1 Nd3 Qa3 Ba1 Bc6 Nb2 Bd5 Nc5 Bc6 Rb8 Ba8 Rb5 Ne2 Nb7 g1B+ Kf1 Bh2 Kf2 Bf4 Rc5 Ng1 Rc1 Bh6 Be7 Bf3 Rf1 Bd1 Bgf8 Bfg7 Bh4 Bf6 Bg7
N2qNb2/1k4Rq/1nprB1N1/RrB5/2B5/1B1qbbN1/PK2P1q1/1B2Q1n1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 d4 Kd7 Kd2 Kc6 Kc3 h5 g4 b5 a6 f5 e6 b4+ Kb2 h4 g6 h3 e7 h2 e8B+ Kb6 a7 c6 g5 f4 g7 f3 g6 b3 d5 f2 d6 Qe7 d7 Qh4 d8N Nd7 Nf7 Nh6 g8B Rb8 a8N+ Kb7 g7 Ng4 Nh3 Rh6 Nf4 Nb6 Ng6 Ne5 Qe1 Nf3 Nd2 Qd8 Bh3 f1Q Be6 Ng1 Ne4 Qg2 Be3 Bd7 Bc5 c3+ Ka3 c2 Kb2 Bc8 Ng3 Bd7 Bc4 Bg4 Rb1 Bf3 Nd6+ Ka7 Bge6 c1B+ Kc3 b2 g8B Rb7 B8d7 Be3 Ne8 Rb8 Rd1 b1Q Rd5 Qd1 Kb2 Qd3 Bf5 Kb7 Bde6 Rh7 Be4 Rd7 Rg5 Rd6 Rh5 Nh3 Rg1 h1Q Re5 Qd5 Bb1 Qd3 Ba3 Qhh2 Ra5 Qhh1 Bc5 Qhh2 Rh1 Ng1 Bb3 Qh7 Bec4 Rc8 Bge6 Rc7 Rh4 Rf7 Rg4 Rf5 Bb4 Rb5 Bc5 Bd5 Nh8 Bf3 Rg7+ Qd7 Ng6 Qe7 Rg8 Qd8 Rg7+
Q1n1Nb2/R2Q1B1r/P3BK2/2qBn3/3rBn1P/3pBR2/nq2N2q/Bk5b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 Ke6 Kg4 b5 e4 f5+ Kf4 d5 h4 d4 a4 b3 c4 b4 h6 b2 a5 b3 h7 Qb6 Kg5 f4 c6 f3 c7 f2 c5 Bb7 c8B+ Nd7 c6 Qc5 c7 Ne7 Na3 b1N Be3 b2 Ne2 Nc3 Nb5 b1Q Nd6 Na2 Rh3 Qb2 Bg2 f1Q Ne8 Qh1 Rf3 Qh2 Bh1 Bc6 Bb7 Rd8 c8B Bd5 Qd3 Bc6 Qa6 d3 Qa8 g6 a6 Bd5 Raf1 Bc6 Rf7 Bd5 R1f3 Bc6 Kg4 g5 Kh5 g4 Kg5 g3 Rg7 Rg8 h8B Bd5 Bc6 g2 B6b7 g1N Bg2 Ng6 Rh7 Nf4+ Bg7 Ke7 e6 Nb6 e5 Rh8 Bd7 Be4 Bdc8 Rd4 Bd5 Qba3 Bd7 Nc8 Bh1 Kd8 Kf6 Qb2 Nd6 Kc7 e7 Kb6 e8Q Ka5 e6 Kb4 e7 Ka3 B7e6 Qcc2 Qd7 Qc5 Rh6 Rh7 e8B Ne7 B8f7 Nc8 Rf1 Bg2 Ne8 Nf3 Rh5 Ne5 Rf3 Qbc2 Rg5 Kb2 Bh8 Qc1 Rg7 Kb1 Rfg3 Kb2 Bg8 Qc7 Qe7 Nc6 Kf5 Ra4 Qd8 Qa5 Ra7+ Kb1 Bgf7 Qac5 Ba1 Qb2 Qd7 Ne5 Kf6 Rd4 Rh3 Bf1 Bhe4 Bg2 Rg3 Bh1 Rf3
1rNB4/1R5n/PBn2brk/pQ3b1q/1PR2BbR/rB2BN1r/3KR3/7q b - - 0 1 illegal: No proof kernel
qB2BrR1/4NqQP/2bB4/PN1BnpNr/5N1r/1k2nN2/R1b5/1b2b1K1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 e4 g5 d4 c5 h4 f5 a4 b5 h6 g4 e6+ Kd6 e5+ Kc7 e7 Kb6 e8N Ka5 d6 b3 e6 Kb4 d5 b2 d7 c4 h7 c3 h5 c2 e7 Nc6 d6 Nf6 h6 Kb3 a5 b4 Bf4 Ng8 Bd3 Rb8 Na3 b1B Be4 Nd4 Nb5 Nf3 Nec7 Nf6 e8B Ne5 Qd4 c1Q Nf3 Bc2 Nd5 Bb7 Ne7 Bc6 Rg1 Nd5 Ra2 g3+ Kg2 Qc7 d8B Ne3+ Kh1 Qb7 d7 Qa8 Bc7 g2+ Kh2 Qf1 d8N Qc4 Bd6 Qf7 Ne6 Rc8 Neg5 Bg7 Re1 g1R Rea1 Rf8 h8N Rg4 Nhg6 Rh4+ Kg1 Rh5 h7 Bf6 Nh3 Bh4 Nhg5 Be1 Bg3 Rb8 Nf4 Rd8 Bb8 Rd6 Rd1 Rdh6 Rd2 Rh4 Rg2 R6h5 Qb2+ Kc4 Qa1 b3 Bd6 b2 Bh2 b1B Bg3 N5g4 Qg7 Kb3 Bb8 Nh6 Qg8 Bc3 Nfe6 Be1 Bgd6 Kc4 Nh3 Bb4 Nef4 Be1 Qh8 Kb3 Rg8 Nhg4 Nhg5 Ne5 Qf6 Qb7 Qg7 Qa8 Bd5+
Q6K/q1R2p1P/1bNnR1P1/1RB1Rr1B/br1NB3/4kqBn/1r4b1/3bR3 b - - 0 1 illegal: No proof kernel
2RR1q1r/1qb1P2N/4P3/B2Rrqn1/1N1Nq1nK/QR2kb1p/4B1RN/n7 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Kd7 g4 h5 b4 f5 d4 a5 e4 c5 b6 a4 b7 a3 g5 a2 d6 Kc6 e6 f4 b5+ Kb6 d7 c4 e7 h3 e5 h4 d5 Kc5 b6 c3 e6 c2 d6 h2 g6 f3 g7 h3 Kg3 f2 Na3 Na6 b8N Nc7 b7 Ra4 Bd2 Kd4 Qf3 c1Q Be2 f1Q Na6 Qc6 b8R Nd5 Nb4 Bb7 Rc8 Ra5 Rb1 a1N Rb3 Nh6 g8N Nf7 Nf6 Bh6 Nh7 Nf6 Kh4 Qf8 d8R Re5 d7 Bf4 Be1 Ng5 Nac2+ Kc5 Qd3 Ng4 Nf3 Ba8 Rg1 h1Q Nh2 Qe4 Nd4 Qff5 Rb8 Qb7 Rg2 Qf8 Qa6 Qff3 Qa3 Qef5 Nbc2+ Kd5 Ba5 Ke4 Rdc8 Qd3 Nb4 Ke3 d8R Qfe4 Rb1 Qef5 Rd5 Qe4 Qc3 Qef5 Qb2 Qde4 Qa3+ Qd3 Bf1 Qd7 Rb6 Re4 Re5 Qa7 Reb5 Bc7 Be2 Re5 Rd6 Bf3 Rbd5 Qb7 Rb2 Kf4 Rb3 Qde4 Bd3 Ke3 Rd7 Be2 Rdd8 Bf3 Be2+
1qNnq1n1/2rpPB2/rqNbk3/Nb6/1R3R2/r2NBKQ1/2P4N/2qB3B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 g4 a5 e4 h5 b4 f5 b6 f4 e6 f3 b7 d3 b5 d2 e5 a4 b6 a3 g6 h4 g7 a2 g5 h3 g6 h2 Na3 Na6 b8N Rh6 b7 Nc5 Na6 Rh4 b8N Bb7 Rb1 a1Q Qe1 d1R Be3 Qc3 Bg2 Rd5 Nb4 Rh5 Nc4 Qb2 Nd3 Qe8 Na5 Nf6 g8B Ra7 g7 Rh6 Bf7 Qb6 Rb4 Ba6 g8B Rd6 Bh5 Bb5 Bgf7 Rc7 Kg3 f2 Bd1 f1Q Nf3 Qe2 Rf1 h1Q Nh2 Ng8 Rff4 Nb7 Bd5 Qhf1 Bh1 Nd8 Qf2 Qd2 Kf3 Qfe1 Qg3 Rh3 Be2 Qb1 Bd1 Qdc1 Bc5 Bh6 Be3 Kf8 Nbc6 Qb8 Na7 Ra6 N7c6 Bg5 e7+ Kg7 e6 Qbb2 Rh4 Kf6 Rhe4 Bf4 Red4 Bd6 Re4 Qf8 e8N+ Kf5 e7 Qd4 Bh5 Qdb6 Rf4+ Ke6 Bg6 Bc5 Nd6 Qe8 Nc8 Bd6 Bh5 Bc5 Kg4 Nb7 Nde5 Qf7 Qe1 Qe8 Bd2 Rd3 Be3 Rc3 Kf3 Nd8 Nd3 Bd6 Qg3 Ra3 Bf7+
1B1B1n1k/1RPP1bQN/2p1N3/1B3K2/2rr4/qq1n2B1/1bR1N3/1b1bn1NB b - - 0 1 illegal: No proof kernel
Qb5n/1Bp2b1b/R1N3BP/B1r2B2/4q2n/Pq3bNB/1RR2rR1/1K4kq b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 d4 Kd7 Kd2 g5 Kc2 b5 e4 f5 h4 f4 a6 f3 a7 g3 e6+ Kd6 a3 f2 h5 g2 e7 g4 e8B g3 h6 b4 Ra2 b3+ Kb2 Nc6 Nd2 Nge7 Qf3 Ng6 Rh2 Qh4 Ne2 g1Q Kb1 g2 Rb2 Be6 Bd7 Qh1 Ng3 g1Q Bh3 Bf7 Bdf5 f1B Rc2 b2 Nb3 Qgg2 Bd2 Nd8 Na5 Be2+ Be1 Qgg1 Nc6 Qe3 Qg2 Bd1 Ba5 Qb3 Qf3 Rb8 a8B Rb5 Bb7 Rc5 Qg2 Qe7 Qf3 Nh4 Qg2 Qe6 e5+ Kd7 d6 Bf3+ Nf1 Be7 d5 Rf8 Qg8 Bg5 Qh8 Be3 Qg8 Bg1 Ng3 Bg6 Qh8 Rf6 Qg8 Nf7 Qa8 Nh8 Nd8 Ke8 d7+ Ke7 Nc6+ Kf7 d8R Bgh5 Bfg4 Kg6 d6 Kg5 d7 Kf4 Rb8 Ke3 d8R Bf7 Rd6 Qed5 e6 Qe4 e7 Rff5 e8B Rf4 Rhd2 Rf6 Ne2 Kf2 Bgc8 Rf4 Bhf5 Kf1 Re6 Bd4 Ng3+ Kg1 Rh2 B3h5 Rg6 Rb5 Bfe6 Qa4 Nb4 Rf2 Bh3 Bb3 Bce6 Bf3 Bbd5 Ba7 Bef5 Rc5 Ra6 Bc4 Rb5 Bb8 Bb7 Bg8 Nc6 Bh7 Ka2 b1B+ Ka1 Qab4 Beg6 Ba2 Rbb6 Qc3+ Rbb2 Bf7 Kb1 Qb3 Rg2+
n3B3/kNpb4/B1n3P1/Q1R1BNn1/bq1brP1n/4BRBq/1rB2K2/4Q3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kd7 d4 e5 a4 b5 g4 h5 g6 h4 d6 Kc6 g7 Kb6 a5+ Ka6 f6 e4 f7 h3 g5 e3 g6 b3 d7 b2 d5 h2 d6 e2 Be3 b4 Na3 b1Q Nf3 b3 Nh4 b2 Kf2 Be7 f8Q Nh6 g8B Qd3 Nf5 e1N Rc1 b1N Rc5 Nf7 Nc4 Ka7 a6 Bf6 Na5 Qe7 d8B Nd2 d7 Nc4 Nb7 Ng2 Qe1 Ng5 Bf7 Nh4 Be8 Nc6 Qa5 Qed6 Qe7 Rb8 Be2 Bb2 Rf1 h1B Qe5 Ba1 Bf6 Nb6 d8B Bd7 Qe4 Rh7 Be5 Re7 Bd1 Qa3 Bc2 Na8 Qeb4 Bd4 Qe1 Re6 Bdf6 Bd5 Bd8 Bb3 Be7 Ng2 B7f6 Ba4 Bd8 Nf3 Bh4 Ng5 Bg3 Qc3 Ke2 Qf8 Rf3 Qh8 Kf1 Qh3 Kf2 Nh4 Nbd6 Rb2 Nb7 Kb8 a7+ Kc8 Bf6 Qb4 Bg7 Re4 Be5 Nb6 a8B Kb8 Nbd6 Qb3 Bb7 Qb4 Bc8 Na8 Ba6 Ka7 Nb7
4q3/pbNb2Qk/1b5B/2r1BnPB/1Nq2Pbr/1R4q1/5B1N/1Nn1KRN1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 g4 Kg7 d4 e5 f4 h5 d6 c5 d7 c4 g5 h3 d5 c3 d6 h4 f6+ Kh7 b6 h2 b7 c2 b5 e4 b6 h3 f7 e3 Be2 Bg7 f8B Na6 b8B Qe8 d8N Bd4 b7 Nc5 d7 Ne7 Ne6 Nb3 d8N Bb6 Bh6 Nf5 Qd4 Bd7 Bh5 e2 Be3 Nc1 Be5 Rc8 b8N Rc5 Nc7 Ne7 Nf3 Nf5 Rf1 h1B Nh2 Bb7 Ra3 Bf3 Nba6 Bg4 Nf3 h2 Nb4 h1B Rb3 Bg2 Ng1 Bb7 Bf2 Na2 Ndc6 c1Q+ Qd1 Qc4 Nd4 Nc1 Ndf3 Bdc8 Qd4 Be6 Qc3 Bd7 Kd2 e1Q+ Kc2 Qee4+ Kd2 Qed3+ Ke1 Qe3+ Ne2 Qed3 Nh2 Qg3 Ng1 Qb5 Bg7 Rg8 Bf7 Qc4 Bf8 Rg6 Bg7 Qc8 Bd6 Qa8 Qf6 Qe8+ Be5 Rh6 Qe7 Rh5 Bh6 Rh4 Bh5+ Kg8 Qf8+ Kh7 Qg7+
1K1Q2b1/2RRb3/b1B5/B1B1qprn/n4P2/r1b5/1PRRB1N1/Nbkb1B2 b - - 0 1 illegal: No possible last move
1n3B1n/r2q1Rkb/R1r2rnb/2R4B/Qn3BN1/Rp1P4/2PB1N2/1r4BK b - - 0 1 illegal: No possible last move
R7/r2R2qQ/1rn3bb/R2n1B2/3pNbBR/4B1P1/KPk1bR2/1r1r1B1N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 f4 a5 c4 d5 Kc2 e5 Kb3 h5 b6 a4+ Ka2 h4 b7 e4 f6 Kg6 f7 Kf5 g6 a3 c5 h3 c6 e3 g7 Ke4 f5 d3 f6 d4 c7 e2 g3 e1B Be2 d2 Bg4 Kd3 Nc3 h2 Nh3 Bf5 c8B Rh6 Ne4 Bg6 Bcf5 Ne7 g8B Nbc6 b8R Qd7 Rb7 Ra7 Bh7 Bg7 f8R Nd5 f7 Qc7 Qf3+ Kc2 Nhf2 d1B Be3 Be2 Ra8 Bd2 f8R Be5 Qf4 Qg7 Rd7 Bb8 Qg5 Bf4 Qe7 Bc1 Bh3 Bd2 Bf1 Bc1 Bg4 Bd2 Rg1 h1R Rg2 Bc1 Rh2 Bd2 Rh4 Rg1 Bfh3 Rd1 Nh1 Be5 Bg8 Bh7 Bf2 Qg6 B8e6 Na5 Bf1 Bg7 Rf3 Bf4 Be3 Qg5 Bef5 Rb6 Rf2 Nc6 Qf7 Bh6 Qg8 Qg7 Qh8 Kd3 Qg8 Bg6 Qh7 Ncb4+ Kb3 a2 Rc1 a1R Rc2 Rab1 Rc5 Nc6+ Rb5 Rba6 Ra5 Rb6+ Ka3 Kc2 Ka2
N3nn1R/r3P3/nk4n1/4R3/Qb1bRB1N/N1b1N2q/BPR1pr2/1K1b1R2 b - - 0 1 illegal: No proof kernel
N2b1rQ1/3Pn1R1/Qr2Bb1P/1B4bR/4K3/NBqpBBB1/k2rb3/1n1r4 b - - 0 1 illegal: No possible last move, all moves rejected
1bQn1N1b/N1RP2rb/2P1R1N1/6n1/1r1kn1b1/K4BRq/1N2p1RB/3n3R b - - 0 1 illegal: No proof kernel
4r3/bbP1nRk1/4rnqp/B3B3/4N2B/N3rBPr/R2bR1Q1/KRB4b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 e5 Kc2 d5 b4 a5 Kb2 d3 f4 d2 f6 d4 c5 d3 g6+ Ke6 g7 Kf7 b6 a4 f5 e4 c6 e3 b5 e2 b7 e1B b6 h6 g3 Bc5 Ra2 a3+ Ka1 Bd6 Nh3 Bf4 Nf2 Bd6 Qf3 d1B Ne4 d2 Qg2 Ra6 Be2 Bc5 Bf3 Nd7 b8B Bb7 Be5 Ne7 g8R Qe8 c7 Ba4 Rh2 d1R Re2 a2 Na3 Qa8 Rc8 Re8 Rb8 Kf8 f7 Nf6 Rd8 Kg7 f8B+ Kg8 Bg7 Bac6 Bc3 Rd4 Ba5 Bd2 Rb8 Rd3 Rc8 Ng4 f6 Re3 f7+ Kh7 f8B Nf6 Rd8 Qc8 Bh8 Qf5 Rb8 Qg6 Bfg7 Ba8 b7 Ba7 Rc8 Kg8 b8R Bcb7 Rd8 Re6 Rdc8 Nd7 Bf6 Kf8 Bh4 Nf6 Kb2 a1R Rd8 Ng4 Be5 Nf6 Rdc8 Ra2+ Kb1 Rc2 Ka1 Kg7 Rd8 Bc6 Rb2 Bcb7 Ra2 Rc5 Rh1 Rd5 Bcb2 Rc5 Rb1 Rc1 Rb8 Rh1 Bc1 Rh3 Rd8 Rh8 Rd7 Rb8 Rd8 Rc8 Rh8 Re8 Rf8 Rc8 Qf2 Rd6 Bg4 Re8 Nc5 Bh1 Ne4 Rc6 Qg2 Re6 Bf3 Bb7 Rf7+
n3b1Qr/1P1rRQn1/QN2n3/RQ3r2/nPK1p2b/r4k1N/Q6Q/BB5q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 b4 Ke5 g4 Kf4 f3 a5 d6 c5 g5 e5 d7 h5 g6 c4+ Kc3 h3 b6 h2 g7 e4 b7 a4 f6 a3 f7 h4 Qc2 a2 Bb2 h3 d4 Ne7 g8Q Na6 d5 Nf5 d6 Ng7 Bd3 Be7 Nd2 Bh4 f8Q+ Ke3 f4 Nc7 f5 Ra3+ Qb3 Na8 f6 Qe7 d8Q Bd7 f7 Be8 d7 Ne6 Rd1 a1N Qb6+ Qc5 Qc7 Qh5 d8Q Ng7 Qf6 Nc2 Rf1 Nd4 Rf5 Nde6 Ra5 Qd1 Qd7 Rh5 Ba1 Rf5 Qfd6 Qe1 Kc2 c3 f8Q Qf1 Qb5 Qg2 Kb1 c2+ Kb2 c1N Kc3 Na2+ Kc4 Nc3 Qf8f7 Na4 Qa2 Qf3 Bb1 Qh5 Ngf3 Ke2 Rc1 h1R Ng5 h2 Nh3 Rd1 Qfb2 h1R Qda6 Ke3 Rc3+ Ke2 Rd3 Qf3 Rd7 Rh2 Re7 Qh1 Nf1+ Kf3 Ne3 Rd8 Nd5 Rd7 Nb6 Bg5 Nf4 Rh8 Qh2 Bh4 Nh3
1B2Knb1/P3NR1k/1b2p1b1/r3n1Bn/3P2NQ/b1Q2B1n/6B1/1B1Bqr1R b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 b5 Ke5 c5 a4 h5 g4 e3 d4 b4 f4 e2 d6 e1N d7 b3 Ke6 h4 a6 h3 a5 c4 f5+ Kh7 Kf7 b2 f6 c3 Qc2+ Nd3 Nf3 h2 Ne5 Nc6 Rg1 h1N Bg2 Nb8 Rf1 Qc7 d8Q Nd7 Ke8 Bg7 f7 Nb8 f8B Nh6 g6+ Kg8 g5 Nf5 Ng4 Bf6 g7 Be6 Qb3 c2 Nc3 b1B Nd5 Qf4 Qc3 Qf2 Bf4 Nd7 Bb8 Qe2 Rf4 c1B Bf3 Kh7 g8B+ Kg6 Bh6 Nhf2 Bg2 Nf8 Bh7+ Kh5 g6 Ne5 g7 Ng3 g8B Ba3 Bhe4 Qd2 Bgh7 Bg8 Bc2 e6 Bf3 Bfe7 Rf7 Bec5 Qf6 Bb6 Ne7 Ra7 Ba4 Bf5 Rg1 Be4 Bad1 Qe1 Bf5 Rh7 Qh8 Ra8 Bg5 Rh6 Bh7 Bc2 Bg2 Rf6 Rh1+ Nh3 Bf5+ Nh7 Bfe4 Rf1 Bef3 Bg6 Be4 Ra7 Bd3 Rd7 Bb1 Rd5 Bgf3 Rf2 Bg2 Rf5 a7 Rf1 a8B Rb5 a6 Ra5 Bh6 Nf8 a7 Bf5 Nc8 Kg6 Bg5 Be4 Qh4 Nh5 Bb7 Bf5 Bbf3 Bc2 Rf5 Kh7 Ne7 Be4 Rf4 Bg6+ Rf7+
2r2N2/1pn1Rn1b/1PNPBR1q/4R2k/1K3BBn/4n2B/3r1q2/2Bn1qQR b - - 0 1 illegal: No proof kernel
n5n1/K3QprB/n5r1/4rP2/q1R1N1nn/1BBQPB2/1B4Bb/2k1q1NR b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 h4 g5 hxg5 b4 Nd2 Ba6 Nb1 a4 b3 Bb5 cxb5 axb3 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 a4 c5+ Kd5 h5 f4 c4 g3 c3 e6 c2 a5 b2 e3 b3 g6 h4 a6 h3 e7 h2 Kc5 Ke4 b6 d5 b7 d4 f5 d3 a7 d2 g7 Qd4+ Kb5 Na6 e8B Bd6 b8B Rh6 g4 Qa4+ Kb6 Rg6 Bg2+ Kd3 Nc3 b1R g5 b2 Bc7 Be5+ Bec6 Re8 a8B Bg3 Bd6 Re5 Bcd5 Nc7 Bac6 Na8+ Kb7 Bf4 Ne4 Bg3 Ra2 Ra1 Bf8 b1N Bb2 c1N Bb4 Nb3 B4c3 Nc5+ Kb8 Bf4 Bb3 Na6+ Ka7 Bg3 Ra3 Ra2 Ba1 Rc2 Qf3 d1Q Qf1+ Re2 Ra2 Qe1 Rc2 Nd2 Rc1 Nf3 Bb7 Nf6 g8Q Nh4 Qf8 Ng8 Qe7 Rg7 g6 Bf4 Nd6 Bg3 Bbf3 Bf4 Bd4 Kd2 Rc4 Bg3 Bdc3+ Kc1 Ne4 Rd2 Nh3 Rd6 Qd3 Rde6 Rf1 h1N Ng1 Qd1 Re1 Nf2 Rf1 Ng4 Re1 Rh7 g7 Rg6 Rf1 Bh2 Re1 N8f6 g8B Rhg7 Bh7 Ng8 Nh3 Qa2 Rh1 Qa4 Ng1 Qe1 Bab2#
R1BN2N1/n1K2nR1/3Bb3/B1P3B1/1qr1p1n1/1knN1NQ1/bb1nP1Nq/8 b - - 0 1 legal: proof: d4 b5 a4 a5 axb5 g5 g4 c5 f4 cxd4 fxg5 Bb7 h4 Qb6 h5 Bh6 g6 Qd8 g5 Bf8 g7 Bc8 Bf4 Ra6 Bc1 Rg6 hxg6 Ba6 Kf2 Bb7 Ke1 Bc8 Kf2 d5 Kg3 Kd7 Kf4 Kd6 b4 h5 c4 f5 b6 e5+ Kg3 h4+ Kf3 e4+ Kf4 d3 b7 d2 b5 Kc5 Ke5 Kb4 b6 a4 Qe1 h3 Bg2 d4 Qg3 d1B Nc3 a3 Na4 f4 Nb2 d3 Nf3 h2 Bh3 a2 Rg1 d2 Nd3+ Kb3 c5 h1N Rg2 Nh6 g8N Be6 g7 Nf2 g6 Qh4 Ne7 Nc6+ Kd6 Nf7+ Kc7 Na7 b8B Ng4 g8N Bg7 b7 Bb2 Nf6 Rd8 g7 Rd4 g8N Rc4 Nfd5 Bc2 Ne3 d1N Nc6 Bb1 Nd8 Nc3 Rg1 Qh6 Ng2 Qh7 Nfe1 f3 Bg5 f2 Nf3 f1N Qh4 Nc8 Qg3 Nd2 Ba7 Qh4 Bb6 Na7 b8B Qh8 Qd6 Qe5 Ba5 Qh2 Qg3 Bc2 Rad1 a1Q Rdf1 Qa4 Ra1 Bb1 Ra2 Ngh6 Ra1 Ba2 Bg4 Bd5 Bc8 Qa3 Kd7 Qb4 Bd6 Ng4 Kc7 Qh3 Rh1 Qh8 Rh7 Be6 Rg7 Qh2 Bb6 Bb1 Ra6 Ba2 Ba5 Nc6 Ra8 Na7 Bf6 Bd5 Bh4 Be6 Bg5
q1b3K1/4Q2P/1pqnB1RB/n2nq3/NP4r1/k1N2n1N/N1r3Q1/R1N2N1n b - - 0 1 illegal: No extended proof kernel
r1N1NNK1/B2n1pR1/Bq2b3/k6q/qrqN4/bB3PPR/3BqQB1/5b2 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Nd7 Ra1 Ndf6 d3 Nd5 exd5 c4 Ra2 cxd3 Ra5 Be6 Ra1 Bc8 Kd2 Kd7 c4 Kc7 b4 Kb6 f3 a5 d6 h5 d7 e5 c5+ Kb7 b6 Ka6 b5+ Kb7 c6+ Kb8 b7 Ka7 b8N Kb6 g6 e4 c7 a4 g7 h4 Qc2 h3 Nc3 a3 Nd5+ Ka5 b6 h2 b7 a2 Ne7 Nf6 g8B Ra6 Ne2 Nd5 Bh7 Rh6 Na6 Rh3 b8B Nb6 Ba7 Rh4 g3 Rf4 Bg2 Rg4 Rb1 a1Q Rb4 Qa4 Bf5 Qa2 Be6 Rf4 Bb3 e3+ Kd1 Qa4 Bd2 Qc6 Kc1 Qc4 Kb2 Rg4 Nc3 e2 Nb5 e1Q Ka3 Bb7 c8B Qe2 Nac7 Bd5 Ne8 Be6 Ba6 Qb8 d8N Nd7 Nc8 Qb6 Qd1 Be7 Qe1 Rf4 Qf2 Rg8 Rc1 h1Q Rf1 Qh5 Rh1 Bc5 Rh3 Be7 Be3 d2 Kb2 d1Q+ Bd2 d3 Nd4 Qcd5 Kc3 Re4 Rc4 Ba3 Rc6 Qdb5 Rc5 Qdf1 Rg5 Rg4 Rg7 Qa4 Nc2 Rb4 Nd4 Bc4 N8e6 Rh8 Nf8 Be6 Bf4 d2 Be3 d1B Bf4 Qa2 Bd2 Qe1 Kd3 Be2+ Ke4 Bf1+ Kf4 Qh7 Kg5 Qe2 Bf4 Rg8 Bd2 Qf5+ Kh6 Qac2 Ng6 Qcc4 Kh7 Qg5 Nc7 Rd8 Nf8 Qh5+ Kg8 Re8 Nd6 Rc8 Nce8 Ra8 Nc8
bK1N1b1q/N1N5/b6p/1NQq1RPB/1N6/3NRrq1/1nn1k2P/n1Q1n1B1 b - - 0 1 illegal: No possible last move, all moves rejected
BBR3bb/Kb4Bp/5N1Q/kqBq1Rq1/1N6/1n3P2/1R3rBP/1rRrb3 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 e4 Qc2 e3 Kd1 exf2 Qb3 Ba6 Kc2 Bb7 Kd3 Bc8 Qd1 Nd7 Kc2 Nb8 e3 f5 Qe1 f4 Ra4 f3 Ra3 Nc6 Ra1 Ne5 Bd3 f1B Qe2 f2 Qd1 Nf3 gxf3 Kf7 Bf5 Ke7 Bd3 Ke8 Kb3 Kd7 Ka4 g5 Ka5 c5+ b6 a6 b4 g4 d6 Kc6 e4 g3 d7 g2 e5 c4 e6 c3 b5+ Kc5 e7 c2 e8B Qc7 d8R Qf7 b7 Rb8 b6 Be2 Bc6 f1R Na3 Qa2 Nh3 g1B Nf2 Qb1 Bb2 c1Q Bg7 Nh6 Nc2 Nf5 Ng4 Nd4 Nf6 Bf2 Nb4 Be1 Ra2 Be6 Rb2 Bg8 Rc8 Rf2 Rf1 Qc4 Qc1 Bd6 Bf5 Be5 Bh3 Qd3 Bg2 Nb3+ Ka4 Qd5 d4+ Kd6 Qf4 a5 Qh6 Qcc5 Rf8 Ba6 Rf7 Rd8 b8R Bb7 Rc8 Qc1 Rh1 Qg5 Rf8 Qe6 Kb5 a4 d5 a3 Rf1 a2 Rg1 a1Q Rh1 Bd2 Rc1 Be1 Rf7 Qb1 Rf8 Ba8 Ka6 Bb7+ Ka7 B5c3 Rf7 Kc5 d6 Qed5 d7 Qbd3 Rf8 Qb5 Rf7 Re8 d8B Re4 Bh1 Rd4 Bg2 Rd1 Be7+ Qd6 Qh4 Ba6 Nh5 Nd2 b7 Qa4 Nc2 Nf1 Rb8 Nd2 Rf5+ Bd5 Rb3 Bf6 Ra8 Rb8 Bh6 Bh8 Nf6 Qb4 Qh3 Kc4 Bhf8 Bg8 Qh6 Qd5 Bc5 Qa5 Rb6 Qb4 Rb5 Kb3 Bg7 Ka4 Rb6+ Ka5 Nd7 Re8 Nf6 Re3 Rf8 Rb3 b8B Rb1 Ba8 Bb7 Rc8 Qa4 Rb4 Qb5 Rb2 Nb3 Nb4
B1nR4/Nb2P3/1k1N1p2/b1n2b2/1NBKn3/4nPB1/4RnBr/rNQ1r2B b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 h4 g5 hxg5 b4 Rh4 Qf6 Rh1 Qa6 b3 Qb5 cxb5 a4 Ba3 axb3 Bb2 Ra4 Bc1 Ra8 Kd2 Kd8 Kd3 c5 g4 Kc7 a4 h5 e4 d5 e6 b2 g6 f6 g5 h4 e7 h3 e8N+ Kb7 e5 h2 g7 b3 b6 c4+ Kd4 c3 g6 c2 a5 Bd7 e6 Nh6 g8B Bb4 g7 Na6 e7 Bc8 Ra2 Nc5 Bg2 Nf7 Nh3 Nd6 Bf4 c1R a6+ Kc6 a7 Bb7 Bh7 Ba5 g8B Nc8 Bg3 Kb5 Qd2 Re1 Bhe4 Kc6 Rf1 h1N Nf4 Rh2 Qc1 Kb5 Nd6+ Kc6 Nc3 b1B Re2 b2 Nd3 Bc2 Be6 b1N Bef3 Nd2 Nb1 Nde4 Bf7 Ba6 b7 Kb6 b8N Bb7 Nb4 Bd3 N8c6 Bc2 Bg4 Bd3 f3 Nhf2 B4h3 Bc2 Bh1 Bd3 Ke3 Bc2 B3g2 d4+ Kf4 d3 Ke3 d2 Bc4 d1N+ Kd4 Ne3 Rg1 Ng5 Rf1 Bf5 Rg1 Rb8 a8B Nge4 Na7 Bc6 Rf1 Rb7 Nab5 Ra7 Rg1 Ra6 Na7 Bb7 Rb2 Re2 Rd1 Re1 Re2 Kc7 Rd3 Bb6 Nf7+ Ned6 Rd1 Ra1 Kc3 Ba5 Rd5 Kb6 Kd4 Nde4 Rd8 Bd5 Nd6 Bc6 Qd1 Bb7 Qc1
k1b3r1/pR2b3/b1N2Pr1/4R1nR/1rBR3n/PR1rB2Q/B6n/K1B1r2N b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 dxe4 gxf5 g4 Ba3 Qb6 Bb2 Qf6 Bc1 Qg5 hxg5 Kd7 Nf3 Kd8 Ng1 Ke8 f4 Kd8 d4 Kc7 Kd2 b5 Kc3 Kb7 Kb2 h5 c4 e5 g6 b4 a3 b3 d5 e3 g7 h4 d6 g3 f6 e4 c6+ Ka6 c5+ e2 f7 e3 d7 h3 d8R g2 f5 h2 c7 Kb7 f6 e1R c6+ Kb6 Nh3 g1N Nc3 e2 Rd4 Nh6 g8B Be7 f8B Nf7 Na2 Rh6 Qd3 Ng5 Nb4 Nd7 Nf2 Rd1 Rb1 e1R Ka1 Rg6 Qh3 N1f3 Bh6 Nde5 Bfc4 Ng4 Bge6 Ba6 c8R Nh4 c7 Kb7 Re8 Rd3 c8R Rb8 Bf7 Ka8 Rc7 Bc8 Nc6 b2+ Ka2 Ba6 Rb7 Rd8 Rg1 Rc8 Nh1 Rd8 Rh8 Rdg8 Rb3 Bc8 Rg3 Ba6 Re3 Bc8 Re5 Ba6 Ng3 h1B Bfd5 Bf3 Nh1 Nh2 Rb7 Bg4 Be6 Ne4 Bhe3 Ng5 Rh5 Bf5 Ra1 b1R Bed5 Rb6 Rb1 Be6 Ka1 Rb4 Ba2 Bf5 Bdc4 Bc8 Rb3
q1k5/2qrn1pP/Q4b2/2q2qP1/QBBRqQ1q/KQ1b1QR1/7Q/3N1r1N b - - 0 1 illegal: No proof kernel
2BnNRRB/8/1KRB1bnk/2r1p1N1/RP1Pbr1p/3n4/1B3q2/2Rrq2Q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kg7 Kd4 a5 Kc5 e5+ d6 h5 g4 c6 d4 h3 b4 h2 f4 a4 f6+ Kh6 g5+ Kh7 b6 a3 b7 a2 f7 h4 g6+ Kg7 f5 Qe8 Bh3 Qd7 Nc3 Ne7 Ne4 Ra5+ Kb6 c5 Nf6 c4 Bb2 c3 Ne8+ Kh6 f6 c2 g7 c1N g8R Nd3 Nf3 Rc5 Ng5 Bg7 f8R Nbc6 b8R Bb7 f7 Ng6 Rc8 Qf5 d7 Bf6 d8B Qf2 Bc7 Nd8 Bd6 Bg2 Rc6 Be4 Bc8 Rh7 Rf1 h1Q Qf3 Rh8 Rfc1 Qhe1 Qh1 Rh7 Rc3 Rg7 Rac1 a1R Ra3 Rb1 Ra4 Ne7 Ne6 Rg4 Ng5 Rf4 Rh8+ Bh7 Rfg8 Ng6 f8B+ Bg7 Bfe7 Bf6 Rf8 Ra1 Rhg8 Rb1 Rc2 Rd1 Rc1 Bg7 Bf6 Bh8 Bfe7 Bf6 Ka7 Bg7 Rf5 Nh8 Rff8 Be4 Bf6 Ng6 Ka6 Bh8 Kb6 Bg7 Rf7 Bf8 Bh8 Be7 Rff8 Bf6 Ka7 Qfd2 Ka6 Qdf2 Kb6
2R2B2/b4nQ1/K2b1rRR/p3B1R1/P2Rq1r1/1pN4n/2b1NPq1/Rrk2Q2 b - - 0 1 illegal: No possible last move
3Br2k/2BQ1BBN/1r2bRp1/pnR4r/qqB3R1/2bP3P/1N4Kn/1n4R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 b4 c5 e4 f5 e5 Kf7 e6+ Kf6 h6 g6 e7 c4 e8B c3 d6 c2 h3 f3 h7 Kg7 b6 f4 b5 Qe7 d7 Qd8 b7 Bd6 b6 Nf6 Nc3 Nd5 Bc4 Qe7 d8B Be6 Ra4 Na6 b8R Be5 b7 Nac7 Rc8 Qb4 b8R Nb5 Rb6 Bd4+ Kf1 f2 Kg2 f1N Rc5 Nh2 Bf7 Bf6 Bc7 Rae8 Nf3 Bd4 Ba3 c1Q Rg1 Qa1 Ng5 Bf6 d3 Be5 Qg4 f3+ Kf2 Bf6 Nd1 Ndc3 Nb2 Nb1 Kg3 f2 Kg2 f1R Rbc6 Bc8 Qd7 Bc3 Rf6 Rfe1 Bd8 R1e6 Bc7 Rb6 Bd8 Re5 Bc7 Rhe8 h8B+ Kh6 Nh7 Rh5 Rff1 Qa2 Bd4 Qab3 Rf6 Kg7 Bd8 Qd1 Be5 Kh8 Bec7 Bd2 Qd4 Be6 Qd7 Qbb3 Bb4 Qa3 Bc3 Qb4 B3e5 Bc3 Bb3 Qa3 Rg4 Qb4 Bc4 Qdb3 Bf4 Q4a4 Bh6 Qbb4 Bg7+
R5K1/2q1Rr2/2RNQpn1/4QPNk/2BP1R1B/1R4n1/p1b1rnr1/b1q2R2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 Ke2 g5 Ke3 a5 c4 e5 h4 f6 d4 Kf7 f4 a4 b6 a3 h6 Kg6 c6 g4 h5+ Kf7 b7 g3 c7 g2 h7 a2 h6 Kg6 f5+ Kg5 c5 Qd7 c6 Ra3+ Nc3 Ra7 Qe2 Ne7 Rh4 Na6 b8R Nb4 Rf4 Ng6 Nb5 Ba6 c8R Qc7 Nf3+ Kh5 Nd6 Rg8 h8R g1N h7 Nd3 Rb3 Nf2 Re8 Bd3 Re7 Bc2 Ng5+ Kh6 Qc4 Kh5 Qe6 Ne2 Rab1 Ng3 Bc4 Bh6 Ra1 Rg7 Ra8 Rb7 h8Q Rf7 Rc3 Rb2 Qb8 Bf8 Rb3 Bh6 Kd2 e3+ Kc3 e2 Qb5 e4 Qbe5 e1R Bd2 Rh1 Rf1 e3 Be1 e2 Kb4 Rh3 Kc5 Rh2 Kd5 Rg2 Raa3 Qb8 c7 Qd8 c8R Qc7 Raa8 Bf8 Bd2 e1Q Bc3 Qc1 Be1 Qd8 Rc6 Qc7 Qe3 Bd3 Q6e5 Re2 Ke6 Bc2 Ree8 Rd7 Re7 Bh6 Kf7 Bf8 Kg8 Bh6 Ree8 Rf7 Qe6 Bf8 Q3e5 Be7 Nc8 Bb4 Re7 Bc3 Nd6 Ba1 Qd7 Ng4 Nb7 Ne4 Bh4 Ngf2 Qde6 Ng3 Nd6
2n2Q2/R1Qb2b1/RRR1PpRP/1p4BK/6N1/r1kbR2B/3Nq3/1nq1rr2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg3 g5 h4 c5 e4 b5 d4 g4 a4 f6 h6 c4 d6+ Ke6 d5+ Kd7 a5 c3 h7 b3 e6+ Ke8 h5 c2 Kh4 g3 d7+ Ke7 e5 b2 h6 g2 a6 Qe8 d8R Bb7 a7 Bc6 Nf3 g1Q Nh2 Qf7 Bg5 c1R Na3 b1B Rd6 Qd4+ Ng4 Bg6 Bh3 Nd7 Nc4 Qc3 Rg1 Nb6 Qc2 Rf1 Ra6 Bd7 Rc6 Bd3 Qh2 Qg7 Kh5 Qc1 Qc2 Re8 a8R Na4 R8a7 Nc3 Rg3 Nb1 d6+ Kd8 Re3 Ne7 Qc3 Rg8 h8R Nc8 Rh7 Qe7 Rg7 Rh8 Rg6 Bg7 Rcb6 Bc6 d7 Rh7 Ra8 Kc7 d8R Bd7 Qa5 Qb4 e7 Qbb2 Qc3 Qe2 Qc2 Rg8 e8Q Rgh8 Qf7 Re8 Qf8 Rh8 Rbb8 Rg8 R6a7+ Kc6 Rb6+ Kd5 Raa6 Kd4 R8a7 Qed1 Qh2 Kc3 Rc6 Qe2 Rcb6 Nd6 Rc8 Re6 Rcc6 Re7 Qf7 Ra8 Qf8 Nc8 Qf4 Re6 Qh2 Rd6 e6 Rd5 Qc7 Re5 Ra1 Re4 Rab7 Ra3 Ra7 Ref4 Ra2 Re1 Raa6 Rff1 Ra7 Rb3 R2a6 Ra3 Nd2+
3b1N2/4n1N1/1q1P1K2/r1q1B1r1/2Bk2PN/np1p1b2/1RrbB1QN/RN5B b - - 0 1 illegal: No proof kernel
1r1r2k1/n2N1Q2/pBR1QB2/2RN4/Pnnq1Q1K/2b3P1/1p1bb3/1q1Q2QQ b - - 0 1 illegal: No possible last move, all moves rejected
1b2RBN1/1n1qQbqP/rpn5/3PQQQR/2N4Q/Q2q4/4rn1p/K2B1k2 b - - 0 1 illegal: No proof kernel
r2qn2n/N3P1Nb/B2b4/6pN/B5Pq/1rR1N1p1/3k1BR1/KQB1rB1n b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 c5 fxe5 h4 d4 Nc6 dxc5 Nb8 Qd3 Be7 Qb3 Bf8 Qg3 hxg3 Kd2 Ke7 Kc3 Ke6 h4 Kd5 b4 Ke4 Kb2 d5 c4 f5 e6 a5 h5 g5 b6 d4 h6 a4 b7 f4 b5 d3 b6 d2 e7 Ke3 e8N f3 c6 f2 c5 Nf6 h7 Ne4 c7 Bd7 c8B Qf6+ Nc3 Qg7 c6 Qg6 c7 Bb5 Nh3 Ra5 Ra2 a3+ Ka1 Nd6 Bd7 Ra4 c8B Qf6 Nf4 Nc6 b8Q Rb4 b7 Bd3 Nh5 Rb3 Neg7 Ne7 Ba4 Ne8 Rb2 Rg8 h8B a2 Rg1 Bc2 Rg2 Ng6 Rb1 Qd8 Nd5+ Kd4 e4 d1N e5 Bd6 Ne3 Kc3 e6 Rf8 Bfb5 f1Q e7 Qh1 Bf1 Nf2 Rb2 Bb1 Re2 Qh4 Rc2+ Kb4 Rc3 Nh1 Ngf5 Bc2 Bd4 Nh8 Nfg7 Bg6 Nc4 Bf5 Bf2 Bh7 Ne3 Rg8 Qa7 Rf8 b8N Rg8 Bca6 Rf8 Rc7 Rg8 Nc6+ Kc3 Qb8 Rf8 Bb2+ Kd2 Na7 Rf6 Bad3 Re6 Ba6 Re4 Rc3 Re6 Nd5 Re1+ Bc1+ Kd1 Nc6 Bg6 Bad3 Nc7 Bab5 Ra3 Kb2 a1R Qb6 Ra8 Na7 Ra3 Bdc4 Bh7 Ba4+ Rb3+ Ka1 Ne8 Rf3 Kc2 Ba6 Kd1 Qb4 Kc2 Qe4+ Kd1 Rc3 Re2 Qb1 Re1 Ba3+ Kd2 Ne3 Rd1 Bb2 Re1 Bc1+
6r1/1q1Rp1B1/1q1rnkB1/1n1R1N2/bQ2P2b/RQR2R2/1KN1Pp2/1b3Rr1 b - - 0 1 legal: proof: h4 b5 a4 d5 axb5 g5 c4 gxh4 cxd5 Qd6 f3 Qf6 Ra6 Qd4 Ra1 Qe4 fxe4 Bg4 Na3 Bf5 Nb1 Bc8 g4 c5 d4 h5 Kd2 a5 Kc3 f5 b4 Kf7 g5 a4 b6 h3 b7 h2 d6 f4 g6+ Kf6 b5 f3 d5 h4 g7 f2 b6 c4 d7 a3 d8R a2 d6 h3 d7 Ra6 Bd2 Nc6 b8R Nh6 g8Q Nd4 b7 Nhf5 Na3 Nd6 Nc2 Bg7 Bf4 N6b5+ Kb2 c3+ Kc1 Ne6 Bc7 Rd6 Qe1 Bh6+ Qd2 Bg5 Nf3 Bh4 Rg1 h1B Nfd4 h2 Nf5 Bf3 Bh3 h1R Rf1 Bg4 Ba5 Ng7 Qb3 Rg8 Ra8 Ne6 b8R Ba6 Rbc8 Bh5 Bb6 Be8 Bd4+ Kg6 Rc5 Rg1 Bg7 Kf7 Rb1 a1Q Rdc8 Qa5 d8R Qb6 Rd5 Kg6 Rd7 Qb7 Ra1 Qb6 Ra3 Qb7 Nce3 c2 Kb2 Kg5 Rc3 c1Q+ Ka2 Qd1 Kb2 Kg6 Qe1 Qd4 Nc2 Qdb6 Rf3 Kf7 Rc8 Kg6 Qeb4 Kg5 Bh6+ Kf6 Rcc5 Na7 Rc6 Bd3 Rc3 Nb5 Bg4 Kf7 Bh5+ Kf6 Ne1 Bc2 Bg6 Bb1 Nc2 Nbc7 Rd8 Ba4 Rd7 Nb5 Bg7+
N1R4b/N1K1p1Np/5BB1/1PkqR1n1/2rb2bB/q1Q2N1P/5q1B/1r3B1n b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 Nc6 gxf5 Nb8 Ke2 Kd7 Ke3 a5 Kd4 g5 Kd5 a4 d4 g4 f4 e3 c4 g3 h3 g2 f6 e2 f5 e1B f7 a3 f6 a2 Qb3 Ra3 Qc3 Na6 Nd2 Bh4 Ngf3 Bb7+ c6+ Kc7+ Ke6 Kb6 c7 g1Q c8B Qe8 d5 Ba8 d6 Qg3 c5+ Ka7 c6 Kb6 d7 Bb7 d8B+ Qc7 Nc4+ Kc5 Bg5 Qb6 Rc1 a1Q Bc7 Rb3 Bh2 Bf2 Bh4 Bg7 f8B Qh5 Kd7 Nc7 f7 Ne6 c7 Ng5 Kd8 Rb2 Bf5 Bc8 Bg6 Bg4 Rc2 Qf6 c8N Rb1 Na7 Qa3 Kc7 Nh6 Re2 Qd4 Re5+ Qd5 Rg1 Nf5 Rh1 Bf6 Bg7 Ng3 f8N Bd4 Rg1 Rg8 Rg2 Nh1 Rc2 Qh6 Bh8 Qg7 Rc1 Qf7 Bg7 Rb4 Nb6+ Rc4 Bh8 Bg7 Na8 Qf6 Nd2 Qf2 Nf3 Bh6 Bf6 Bg7 Rc2 Bh8 Kb8 Rg7 Ne6+ Kd6 Rc1 Rf7 Ng7 Kc5 Kc7 Rf8 Rce1 Rd8 Re6 Rd6 R1e5 Ra6 Rb6 Ra4 Rb7 Rb4 Rb8 Rb1 Rc8
QRrn1k2/3bpP1N/K1R1nBqb/1R6/1P1qB2q/1p1N4/7B/1BbRRr2 b - - 0 1 illegal: No proof kernel
2q1r2R/k2p2R1/4NK2/RBQP3R/qr2P1q1/1pn2N2/n5Bb/1b1rRQR1 b - - 0 1 illegal: No possible last move
1Rb3k1/1rnp2r1/BR2rP1N/qp1RR3/1P5n/1K2B1BN/1b1b2q1/3Q1BR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Qb6 a5 Nf6 axb6 Ng8 b4 Kf7 Qe2 Bb7 Kd2 g5 h4 e5 Ra6 g4 c4 e4 Kc2 g3 f4 g2 c5 d3+ Kb3 d2 h6 e3 c6 Nf6 c7 d1R c8B Ng8 h7 Bf3 b7 Bh6 h5 Rd6 Nd2 Re6 Nc4 Bg7 h6 Ne7 Qd1 e2 Ne3 e1B Ng4 Rg8 h8R Bb2 h7 Rg7 Nh3 g1Q Be3 Ng6 Rb6 Na6 b8R Qg2 Rg1 Nc7 Bb7 a5 Ba6 Bb7 Rhe8 Nh4 h8R Rc6 Re4 Re6 Rh5 Bc8 Nh6+ Kf8 Rd4 Ra7 Rd5 Rb7 f6 Rg5 f5 Bd2 f7 a4+ Kc2 a3 Kb3 Rg7 Rg5 a2 Rh5 Ke7 f8B+ Kf6 Rg5 a1Q Bd6 Qa5 Bg3 Ke7 f6+ Kf8 Ng4 Kf7 Rge5 Kg8 Nh6+
R1q2k2/2PRr3/1Nb2qN1/R4BR1/1n1N1Q1N/1K2p1p1/2BbPrN1/3q2nr b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 h6 g6 Ba6 g7 Bc8 g4 Nf6 g5 Ng8 g6 Qc7 Bd2 Qd8 Bg5 hxg5 Kd2 f5 Kc3 a5 b4 d5 h4 e5 b6 e4 b7 e3 c6 d4+ Kb3 f4 c4 g4 c5 g3 h5 f3 b5 f2 b6 d3 h6 d2 h7 Qd6 c7 Qe5 c6 Qc5 Bh3 f1Q Nf3 Qg2 Nh4 Qh2 Nc3 Bf5 c8N Nd7 b8N Ne7 g8R Be4 g7 Ra7 b7 Qf2 Qf1 Qf6 Nb6 Nd5 Qf4 Ne5 Bf5 Nf3 Rhd1 Nb4 Ncd5 Ng1 Ra4 Qce7 Ra3 Qee6 Ra2 Qc8 c7 Ra8 Nc6 a4+ Ka3 Bf3 Nd4 Rb8 Kb2 a3+ Kb3 Bg2 Raa1 a2 Bc2 Ra8 b8R Ra4 Ra8 Kf7 Ne7 Bc6 Nef5 Ra5 Ng2 Re5 Nfh4 Re7 Rab1 a1R Ra5 Ra2 Ra1 Ra4 Rg5 Ra5 Ra4 Rf5 Ra8 Ree5 Ra5 Bc5 Rd8 Re7 Rd7 Ke8 g8B Kf8 Rda1 d1Q Be6 Bd6 Ra8 Bc5 R1a5 Bd6 Qg4 Rf2 Bf5 Be5 Qf3 Bd6 Qf4 Be5 Nb5 Bc3 Nd4 Be1 R8a7 Bd2 Ra8 Rg8 h8N Rgg7 Nf7 Rh7 Ne5 Rh6 Nhf3 Rh2 Nfh4 Rh1 Neg6+
q4rn1/2P1R3/R1p1B1R1/4r1n1/2Bb1rqk/1pNnRRQ1/bP1N3N/3N3K b - - 0 1 illegal: No proof kernel
N1NQB3/1RpQqPNp/1B5r/N3n1qk/K7/3b1q1P/N3n1b1/r2RnN2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 g3 f5 Nh3 f3 Ng1 f4 Qc2 f2+ Kd1 f3 Qa4 Bd6 Kc2 Bf4 gxf4 Nh6 Kc3 Bd7 Qd1 Bc8 Kc2 Ng8 Kb3 Kf7 e4 Kg6 d4 a5 h3 Ba6 f5+ Kh5 f6 g5 f7 g4 e5 g3 d6 g2 d7 Qe7 d8Q Nc6 d5 Na7 b6 Nh6 d6 Kg6 e6 Bc8 b7 Rf8 b8N Re8 d7 Nb5 Ne2 g1N Nec3 Kh5 Ka4 Nf5 b4 Ra7 Nc6 Qc5 e7 Nh6 Na2 Qe3 Nd2 Ng4 Rb1 Na3 b5 Nc2 b6 Bb7 Bb5 Ne1 Nf1 Qg5 Be3 Ne5 Rb4 Ra8 Na7 Ne2 Nc8 Rg8 e8N Rg6 Rb2 Rh6 Qd3 Bd5 b7 Bc4 Qd5 Bd3 b8N Ra7 Bb6 Ra6 Nh2 f1B Qe6 Bg2 Nf1 f2 Ng7+ Kh4 Qdf6 Ra8 d8N Ra7 Qd7 Ra8 Ng3 f1Q Ndc6 Qf3 Qfd8 Ra7 Nf1 Ra6 Ka3 a4 Na5 Ra7 Kb4 a3 Ka4 Ra6 Nc6 Ra8 Ncb4 Qe7 Nd5 Ra7 Nac3 a2 Bc6 a1Q+ Na2 Qc1 Rb1 Qcg5 Rd1 Ng3 Rh2 Bh1 Rb2 Bg2 Be3 Rb7 Ndb6 Qfg4+ Qd4 Ne2 Na8 Rb6 Be8 Rb5 Rbd2 Rb1 Rb2 Ra1 Rb4 Qe4 Q4d7 Qeg4 Bd4 Q4h5 Rb7 Qf3 Ne6 Kh5 Bc5 Nc4 Bb6 Ne5 Ng7+
n4Q1N/Kp1Br3/3b3p/1qB1r3/1n2qP1N/NQ1bN1Nk/2RqPnN1/5R2 b - - 0 1 illegal: No proof kernel
q1r1N2Q/P1rn1RBK/2N1pRNP/qB1nbr1N/8/2N3kb/bB1B1p2/8 b - - 0 1 illegal: No proof kernel
2R1N1R1/P1P5/Np1bQNn1/1R3q2/pr4r1/n1NN1b2/3B2B1/kq1nR1bK b - - 0 1 illegal: No proof kernel
2q1R3/pqB2p2/1B1b3r/P3N1r1/1nrqb1B1/P2NBRnN/k1N1NQ1K/8 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 e5 g4 Qd7 gxh5 Qe7 f4 Qa3 bxa3 exf4 Kf2 Kd7 Kg2 Kd6 e4 Kc5 d4+ Kd6 h4 g5 a5 b5 h6 c5 h5 f3+ Kh2 b4 e5+ Ke7 h7 g4 h6 c4 d6+ Ke6 d5+ Kd7 Qc2 b3 Nh3 c3 Qf2 c2 Nc3 b2 Ne2 b1Q Be3 Qb3 Re1 c1Q Bg2 Qbd1 Rhf1 Bb7 Bh1 Ne7 e6+ Kc8 d7+ Kc7 d8B+ Kd6 Bdb6 Qc8 Bg2 Nf5 e7 Nc6 e8N+ Ke5 d6 Kd5 d7 Kc4 d8N Kb3 Ne6 Bd6+ N6f4 Qd4 Nf6 Ng3 N6d5 Ka2 Nd3 Nb4 Bc7 Bc6 Bh1 Qb7 Bb6 Rhc8 h8B Rc7 Bf6 Rh8 h7 Qc8 Be5 Bb7 Ne7 Be4 Nd5 Rc4 B5f4 Re8 h8N Re6 Bg2 Rh6 Ng6 Qb7 Nge5 Qc8 Qg1 f2 Bf3 Qb7 Bd2 Qc8 Ne3 Qb7 Nc2 Qc8 Rd1 Qb7 Rfe1 f1Q Bde3 Qf2+ Qg2 Qc8 Rf1 Qd5 Rde1 Qdb7 Bec5 Qe3 Qf2 Qd4 Be3 Nh5 Bc7 g3+ Kh1 g2+ Kh2 g1R B5b6 Rg5 Bg4 Re6 Qh4 Rf6 Rf3 Rh6 Qf2 Ng3 Rb1 Na6 Rb5 Nb4 Rd5 Be7 Rd8 Bd6 Re8
4r2B/1bB2b2/3RpbNB/2qnQ2r/2P1b2k/2QN2b1/2p1nB1P/RB3KB1 b - - 0 1 illegal: No proof kernel
1BNr1Bq1/R1np4/BQnP4/P1pB3N/nbR1n1r1/1R5K/nb2B2R/4k3 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 b5 hxg5 Ba6 c4 axb4 Qg4 b3 Qe2 b4 Qd1 Bb5 cxb5 Ra6 Nc3 Ra3 Nb1 Ra8 g4 Kf7 d4 e5 a4 c5 f4 h5 Kf2 h4 Kg2 e4 f6 Ke6 f5+ Kd5 g6 b2 g7 e3 g5 Ke4 f7 e2 g6 e1B d5 b3 f6 Qe8 b6 Qe6 b7 Bf2 Be2 Ra7 Nh3 Bg3 Na3 b1N Nb5 b2 Rh2 Nc6 b8R Be1 Qb3 Nge7 g8B Bb4 g7 Nc3 Bf4 b1N Nd6+ Kd4 Rb7 Na2 Nc8 Nbc3 Bb8 Ke3 d6 Kd2 Nf4 Ned5 Nh5 Nc7 a5 Na4 Rc1 Ra8 Rc4 Ke1 Ra7 h3+ Kg3 Be7 f8R Rh7 f7 Bf6 Rd8 Bb2 f8B Rh6 Bh7 Qg8 Bhd3 Rf6 Re8 Rf4 Re3 Re4 Rc2 Rf4 Ba6 Rh4 Rc4 Re4 Rg2 h2 Kh3 h1N Rh2 Ng3 Rf3 Rg4 Rd3 Qh7 g8B Ne4 Bd5 Qg8 Ne7 B4a3 Qb6 Bb4 Rb3 Ne8 Bc7 Rd8 Bb8 Nc7 Nc8
2Rn2r1/N3B1N1/QKN1B3/2B3b1/1P1p1Ppb/k3n3/4RrbB/1nNNnq2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 d5 h4 Kd7 b4 Kd6 c4 g5 b6 e5 c5+ Kc6 f6 Kb5 h6 g4 h5 a4 b7 a3 c6 a2 c7 Nc6 b8N Ra4 f7 Ra7 h7 Qe8 h6 Ra5 Bf4 Na7 Bh2 Nc6 f4 Nge7 Ne2 Rg8 h8B Bb7 c8N Nd8 h7 Nf5 Nc6 Be7 f8N Bh4 Bf6 Ne3 h8B Ra7 Qd2 Ka4 Nbc3+ Ka3 Rc1 a1B Nd1 Bg5 Rc5 Qd7 Nc1 e4+ Ke2 Qd6 Ne6 d3+ Kf2 Qc7 Qe2 d2 Be7 Baf6 Ng7 Qa5 Rg1 Qb5 Rg2 Ra5 Qc4 Bh4+ Ke2 Bfg5 N8a7 Qa6 Qb5 Ba8 Rc4 d4 Bc5 Ra4 Qa5 Qb5 Qa6 Ra5 Nf5 Bb7 Bf6 Ra4 Ng7 Ba8 Nf2 d1N Bfe7 Nc3+ Kd2 Ra5 Nd1 Nb1+ Ke2 Nf5 Rf2 e3 Kd3 e2 Bg2 Bb7 Bd5 Ne3 Be6 e1N+ Ke4 Ba8 Rcc2 Qf1 Rfe2 Bb7 Ke5 Ra4 Kd6 Ra5 Kc7 Ra4 Nb8 Bg2 Kb6 Ra5 Bcd6 Ra4 Rc8 Ra5 Qb7 Rc5 Nbc6 Rc2 Bc5 Rc4 Rb2 Rc2 Qa8 Rf2 Re2 Re8 Qb7 Rg8 Qa6#
1Q1r3b/3R1Br1/q1R1Nr2/R1pp3b/PnN5/1R1RK1nQ/R2B2P1/kn5r b - - 0 1 illegal: No proof kernel
1b1Bb2q/1k1R3n/3Q3p/1PR1N1bB/4BRpN/P4r2/brB1r1RB/2K2n2 b - - 0 1 illegal: No possible last move
1bRN1n2/2nr3R/6P1/2B4K/prb1k1BB/2npNnBr/P4Q1N/NNq5 b - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 f5 exf5 g5 b4 Na6 bxc5 Nb8 h4 gxh4 Ke2 Kf7 Kf3 h5 g4 d5 c4 a5 g5 b5 e6+ Kg7 e7 d4 e8N+ Kf7 c6 a4 g6+ Ke7 f6+ Ke6 f7 Ke5 c7 d3 c5 b4 c6 h3 Nd6 h2 Nf5 b3 Qc2 b2 Bg5 h4 Kg4 h3 f4+ Kd5 Qf2 Qe7 Nf3 Qe6 Be2 Qd6 Bh4 Be6 c8N Ne7 c7 Qc5 Nd6 Ra7 c8N Rd7 Nb7 Ke4 Na7 Nd5 Nc6 Qc1 Nb4 Nc7 Nc2 Bd6 f8B Bc4 Nd8 Be5 Bg3 Rh4+ Kg5 Bd6 Nfe3 Be5 f5 Rf4 Rg1 h1N f6 h2 f7 Bd6 Bh4 Ng3 Rh1 Nf1 Kh5 Nd2 Bg3 Be5 Be7 Rg4 f8B Rf4 Rf1 h1R+ Beh4 Rh3 Nh2 Nf3 Rh1 Rg4 Bc5 Bf4 Nba3 b1N Bd1 Nc3 Rb1 Rd4 Na1 Nd7 Rb8 Nf8 Nb1 Rd7 Rc8 Na6 Re1 Bb8 Re2 Nc7 Rb2 Rf4 Rb7 Nd2 Bg4 Nf3 Ra7 Rf6 Ra5 Rb6 Ra6 Rb2 Rf6 Rb5 Rf7 Rb4 Rh7
KR1BN3/8/N1Qp1Brr/3P1r2/PnpN2Bn/2bN2br/N3q2B/1Rb2k2 b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 b5 gxh5 Ba6 c4 axb4 Bg2 b3 Bh3 b4 Bf1 Bb5 cxb5 Rh7 Bd3 Rh6 Bf1 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kd5 Kf4 h4 c5 a4 e5 f6 g5 d4+ Kf5 f4 d6 b6 c4 f7 g4 h6 g3 h7 e4 b7 e3 h5 g2 h6 b2 Ne2 Kg4 f5 Kf3 f6 Kf2 Nbc3 b1R Nf4 g1B Qf3+ Ke1 Bh3 b3 Bg4 b2 Na2 e2 Nd3+ Kd1 Bf4 Rc1 Bh2 Ra7 Rb1 Bg7 f8N Nc6 b8N Qe8 Na6 Rf7 Nd7 Kd2 Qe4 e1B Qf3 Rf8 f7 Qe2 Nf6 Rc3 Ne8 Bg3 Qg2 Be3 Rhf1 Ne5 Rf2 Ng6 Kc6 Bef4 Kb7 Nf6 Qc6 Nh4 Ka8 Nd5 Rg2 Rfg8 f8N Nb4 d5 Bd4 Rgg1 Rg6 Ne6 Rb3 Rh1 Bc3 Nd4 Rf8 h8B Rf5 h7 Rh6 Rbe1 b1R Bf6 Bg5 h8B Ke3 Ne5 Kf2 Bd8 Bc1 Nd3+ Kg2 Ref1 R1b2 Rf3 Rd2 Re1 Rd1 Rh1 Rg1 Bhf6 Ra3 Re3 Kf1 Re7 Rb3 Rb7 Bf2 Nf4 Ba1 Kb8 Rh3 Bh8 Bc3 Bf3 Bce3 Ka8 Ke1 Rb8 Bed2 Ng6 Bf4 Bhf6 B2e3 Bh5 Kf2 Ne5 Rgg6 Rb1 Bg3 Bg4 Bc1 Nd3+ Kg2 Rb7 Kf1 Rb8
1bN1br2/b1rP4/p3Kb1Q/n3RB2/r1QqP1B1/1Bp1BBk1/3N1n2/3R2B1 b - - 0 1 illegal: No proof kernel
2nbN2N/1KPr1rp1/1PBBR3/k7/1Rq4p/1R4rR/QQ3nR1/nbR4n b - - 0 1 illegal: No proof kernel
3KRr2/1P4rR/n2n1rp1/P1Bn1B1R/2Bb3r/3b4/2NN1pRq/2kQ1BB1 b - - 0 1 illegal: No proof kernel
1b3br1/nPR1b2N/pQ3B2/p1RP1N2/1R1N1r2/R3KbRq/8/1nkNnB2 b - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 f5 exf5 b6 a4 h4 a5 bxa5 g3 Nf6 gxh4 Ng8 h5 Bb7 Nh3 Ba6 Ng1 Bc8 d6 Kf7 Ke2 Kf6 h4 Ke5 d4+ Ke4 b4 c5 f4 e5 Rh3 g5 d7 g4 f6 c4 d5 c3 h6 a6 h7 c2 b5 g3 h5 g2 b6 Nc6 f7 Na7 f5 Qg5 d8R Qh6 b7 Nf6 Bb2 c1B Rd7 Ba3 f8R Bg5 Nf3 g1B Qb3 Qg7 h6 Nh5 f6 Rg8 h8N Bh2 f7 Nf6 h7 Qh6 Ng6 Rb8 Re7 Bg4 Rc8 Bg3 Rc1 Rbf8 h8R B3f4 Rg3 Qh3 Rc6 Bh6 Rd7 Be7 Qb6 Bh5 Rc5 Bg7 Kd1 Ke3 Nc3 e4 Ra3 Bb8 Rdc7 Bg4 Rh4 Bh6 Bg2 Kd3 Ke1 Kc2 Ke2 e3 Bf1 Ne4 Nd1+ Kb1 Kd3 e2 Kd4 Bg7+ Ke3 Nc3 Ba1+ Kc2 Bb2 Bh5 Rb4 e1N Ba1 Kc1 Ngh4 Rd8 f8N Bg4 Ng5 Bf3 Nfh7 Rdf8 Ne6 Rf4 Nf5 Bgf8 Nf6 Rc4 Nh7 Nb1 Bc3 Rcg4 Bf6+ Rc4 Nc3 Rcg4 Ned4 Rf4 Nd1+
2nk2BQ/p3b1KN/1bN2B2/3R4/2B1Pp2/P1Rq2br/1B1r2br/1nB1R2R b - - 0 1 illegal: No possible last move
2nR2n1/p1rB3Q/RPbn1PRR/nrq2RB1/7p/b3NN2/K6B/3kB1r1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 Kd6 f4 c5 d4 e5 Kd2 h5 Kc3 e4 Kb2 h3 g5 h2 f6 c4 f5 c3+ Ka2 e3 f7 c2 g6 e2 b6 e1R g7 Re6 b7 Qg5 b5 Rf6 b6 Be6 Nf3 Rg6 Bd2 Bd7 Be1 Nc6 Nbd2 Nce7 Bb5 Bc6 Qb1 Rc8 b8B+ Rc7 Nf1 Nc8 Ne3 Be7 f8R c1N+ Kb2 Rh7 Ra6 Nb3 Ka2 Na5 Rf7 Bf8 Qc2 Qe7 Qe4 Rg1 Qh4 Nf6 g8R Rh6 Rg4 Ng8 Qh3 Re6 Ba4 Re5 Rg6+ Kd7 d6 Rb5 Rff6 Qe5 Qh4 Qc5 d5 Be7 Rh6 Bf8 Rfg6 Be7 Qe4 h4 Qc2 Rf1 Rhg1 h1N R1g5 Rg1 Qe4 Nf2 Qc2 Ke8 d7+ Kf7 d8R Ne4 d6 Bf8 d7 Ned6 Re8 Be7 d8B Bf8 Bf6 Be7 Rd8 Bf8 Bfc3 Ke7 f6+ Ke6 Bcd2 Be7 Nf5 Kd5 Qb1 Kc4 Rgh5 Qe5 Bg5 Qd4 Qe4 Bf8 Qe7 Kd3 Ne3 Ke2 Qh7 Qc5 Bb3 Rh1 Be6 Rg1 Bd7 Be7 Bf4 Bf8 Rf5 Be7 Bg5 Bf8 Ng2 Kd1 Ne3+ Kc1 Qf7 Ne8 Qe7 Qc4+ Ka1 Rb7 Qf7 Ba3 Nd5+ Kd1 Bh2 Ned6 Qh7 Qc5 Ka2 Rc7 Ne3+
rq4n1/p6P/Pb1Qr1NR/1nBbRBb1/1R6/k2p1n1R/n3Q1N1/3K1RR1 b - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 f5 exf5 h5 g4 hxg4 b4 Bd6 bxc5 Bf8 f4 Ke7 c4 g5 a4 d5 h4 b5 e6 d4 f6+ Ke8 f5 b4 c6 g3 h5 g2 e7 d3 c5 g4 c7 Kd7 e8R Kc6 h6 b3 f7 b2 f6 g3 h7 Bb7 c8R+ Kd5 c6 Kc5 a5 Kb4 c7 Bc6 a6 Bf3 Na3 b1N Re5 Bb7 Rh3 Qd5 Nc4 Qa5 Qe2 Bc6 Kd1 Bd6 f8R Bd5 f7 Be7 Be3 Qc5 Nf3 g1N Nh4 g2 Ng6 Nc6 Rb8+ Qb6 c8R Nd4 Rc6 Nb5 Bc5+ Kb3 Rce6 Nf3 Ne3 g1B Ng2 Bg5 Rf6 Qd6 Rb6 B1e3 Rfb8 Qc7 f8Q Qd8 R8b7 Qb8 Qd6 Bd4 Rg7 Bg1 Ra4 Bd4 Rb4+ Ka3 Rf4 N1c3+ Kc1 Qb7 N6h4 Nd2 Ne3 Nh6 Bg2 Raf8 Qe7 Ra8 Rf1 Rhc8 Bd6 Bf4 Be4 Re8 Rgg1 Ng8 Bf5 Na2+ Kd1 Nf3 Neg2 Qb8 Rc6 Bb6 Bc5 Bc1 Rh6 Bg5 Qd6 Re6 Ng6
1n1r1R1r/1Bb1B3/Qq2B3/N3q1nb/RN1Bp1Q1/1PpBk1B1/r1r1P3/5K2 b - - 0 1 illegal: No possible last move, all moves rejected
nB6/3q1BQ1/RN2BK2/N2qBB1p/q1rn2N1/bP6/qbpk2RP/N1r5 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 fxe5 f4 c4 Bf5 gxf5 dxc4 Kf2 Kd7 Kf3 a5 Kg4 c5 e4 g5 d4 f3 f6 Ke6 b6 h6 b7 f2 b3 a4 f7 c3 Bd3 f1Q Bf4 a3 Nh3 c4 Rg1 c2 Rg2 c1B Nf2 a2 Na3 c3 Nc2 Nc6 b8B Qh1 Qg1 Bfa3 Bg3 Qd7 f8N+ Ke7+ e6 Kf6 d5 Bcb2 d6 Nd4 Kh5 g4 e7 Ra4 e8B Rc4 Bf7 Ne7 Be6 Nc8 Bf4 Qa4 d7 g3 d8N Nb6 Nc6 Na8 Na5 Rh7 Kh4 h5 Nd7+ Kg6 Nb6 Rhc7 Be5 R7c6 Rb1 a1Q Ng4 Qa2 Na1 Rc8 Rf1 Qd7 Rf7 Qa4 Ra7 R8c7 Re2 g2 Ra6 R7c5 Qb1 g1Q Rg2 Qe3 Qg1 Qh6 Bc2 Qg7 Bb1 Qgd7 Bd3 Kh7 Kg5 Rc6 Qf1 R6c5 Qf8 Qd1 Kf6 Qd5 Ke7 Kg6 Qf7+ Kg5 Qg7+ Kh4 Kf6 Qdd7 Bf4 Qf3 e5 Qfd5 Bef5 Rc8 e6 R8c5 e7 Rc7 Rc2 Kh3 Be2 Kg2 e8B Kg1 Bd1 Kf1 Rg2 Ke1 Be5 Rc8 Be2 Kd2 Beg6 c2 Bf7 Re8 Bf4+ Re3 Bfe5 Rf3 Be6 Rf1 Bf7 Rc1 Bed3+ Ke1 B5e6 Kd1 Bdf5 Ke1 Rg1+ Kd2 Rg2+
R1nRR1QN/1b2q1q1/BB2p2R/r1Pq2pK/1rkP3b/3N1R2/3Bq3/3B1n2 b - - 0 1 illegal: No possible last move
q1NR2N1/r1N1Q1k1/r2prnB1/NbpP1PK1/8/2n4r/1QN2q1R/BN1b4 b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Kf3 a5 Kf4 h5 d4 c5 g4 a4 g5 a3 d5 a2 g6+ Kf6 b7 h3 b6 e6 g7 h4 b5 d6 Rh2 Rh5 Qd4+ Kf7 f6 Ra6 Bd3 Rg5 Qb2 Rg6 Ne2 Nd7 b8N Bb7 Nc6 Qa8 Ne7 Bc6 b7 Nb6 b8N Na4 b6 Bb5 b7 Nc3 Nd4 e5+ Kf5 e4 f4 e3 Nc2 e2 Nc8 e1Q Nc6 Rh6 b8N Qf2 Na5 Ra7 Na6 Rg6 Rh1 h2 Nc7 h3 Be3 Rh6 Kg5 Ra6 Bd4 Ra7 Rg1 h1B Rg2 h2 Bf5 Rh3 Bh7 Re3 f5 Re6 Be5 Qf3 Re2 Qf2 Bd4 Bf3 Be5 Nh6 g8N h1R Bg6+ Kf8 f7 Ng4 Bd4 Nf6 Be5 Kg7 f8Q+ Kh8 Qe7 Rh3 Rd2 Bd1 Bd4 Qf1 Rh2 Qf2 Nd2 Ra6 Rb1 a1R Be5 Ra4 Ra1 Rah4 Nb1 Rh7 Ra4 Rf7 Rh4+ Kg7 Rh8 Re3 Nh6 Rf3 Rd8 Rh3 Ng8 Qd4 Ne8+ Kh8 Qc1 Na4 Qf8 Rfa7 Nc7 Qf2 Ba1 Nc3 Qe8 Kg7 Qb2 Re4 Qe6 Re2 Qe8 Re6 Qe7+
6N1/KQ1N3b/1P5R/8/P3rR1b/qRNnBnqp/2kRbRpN/1r3B1b b - - 0 1 illegal: No proof kernel
1N3r2/K3B1Bq/P6r/2P1n1r1/2k1R1N1/2r1BbBR/NppQ1b2/N1q2B1n b - - 0 1 illegal: No possible last move
4Q2n/4r1bP/2p1pqNN/q3RNN1/Q1KnbPq1/4q2k/1BB1Rr2/2NN4 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 a5 h4 g5 f4 g3 b4 e6 d6 g2 b6 g4 f6 a4 b7 a3 f7 a2 h5 g3 b5 Qg5 b6 Qc5 h6 Nc6 b8Q Be7 f8N+ Ke8 d7+ Kf7 d8N+ Kf6 b7 Kf5 h7 Qe3+ Kc4 Bb4 d4 Nge7 d5 Qa7 d6 Bd2 d7 Qb6 Nf7 Ng6 d8N Bc3 Rh2 Bg7 Ne2 Kg4 Ng5 g1Q Ndf7 g2 Nbc3 Ra7 Rb1 a1Q Rb5 Ra2 Qa4 Qge3 Nd1 Qf6 Re5 g1Q Bh3+ Kh4 Nh6 Qa5 Qa8 Rg8 b8N Nd4 Nc6 Nh8 Ne7 Bb7 Qc8 Qg2 Bf5+ Qgh3 Rg2 Qg4 Bg6 Rd2 Bc2 Be4 Bb2 c6 Nc1 Re2 Rf2 Kg3 Nfg6 Re8 Nf3 Kh3 Nef5 Re7 Qe8 Re1 Rd2 Rf1 Re2 Rf2 Ng5+
KN1Q4/1n2Q1Pb/1R1bR1k1/1bp3P1/3B1B2/1q3rp1/BrnqB1N1/2BB3b b - - 0 1 illegal: No proof kernel
1bR3Q1/4qRpB/1n4q1/1KP3k1/1B3r2/N1q1p3/N1n1BBPb/2QrBB1q b - - 0 1 illegal: No proof kernel
bR2RbnQ/1B3Bp1/2b2b1r/qP1nN1q1/4rpNR/3P4/B1k4R/B4KB1 b - - 0 1 illegal: No proof kernel
1B3q1B/qb2rP2/1kr2BKn/RN1P3N/6N1/b5pN/n2BBp2/4QbRb b - - 0 1 illegal: No proof kernel
1n5k/K1Pn1Q2/2Pr1NN1/1N2qp1R/B1Nr2bp/4bNR1/3n1n1B/1N3qQ1 b - - 0 1 illegal: No possible last move
8/1p1q2Q1/nPBBPBB1/1b2n3/4RrBK/3qQq2/r1NpqRb1/4NB1k b - - 0 1 illegal: No proof kernel
4Rq2/1B5b/N1R2n2/2R1RN1p/2K1n1bP/Br5Q/nP2kq1p/1NRq2bN b - - 0 1 illegal: No proof kernel
1br4n/p2BNQK1/4Bp2/P1nn1q1R/B1B1kBR1/1Q3q1N/1B4Pb/q4b2 b - - 0 1 legal: proof: f4 b5 h4 g5 fxg5 c5 e4 d5 b4 dxe4 bxc5 Na6 h5 Rb8 Ne2 Rb6 Ng1 Rg6 hxg6 Qd7 Rh3 Qd6 Rh1 Qd8 Kf2 Kd7 Ke3 Ke6 Kf4 Kd5 c4+ Kd4 a4 h5 g7 f6 g6 b4 a5 e3 c6 h4 c5 e6 c7 h3 c6 e2 Nc3 e1B Bc4 b3 Bb2 h2 Ra4 Nh6 g8B Nb4 g7 Nf7 Nh3 Ba6 c8B e5+ Kf5 e4 Kg6 e3 c7 e2 Bd7 Qa8 c8B Qf3 Nd5+ Ke4 d4 Bg3 Ne7 e1N d5 Ned3 d6 Nc5 Bc6+ Nd5 d7 Bd6 d8B Bb8 Bc7 Bb5 Bf4 Ba6 Bd4 b2 B8d7 b1Q Bb2 Qbd3 Qb3 Qc2 Nf5 Bfd6 Ne7 Be5 Rb4 Qcd3 Ba4 Bb5 Bh7 Rc8 Bg8 Nh8+ Kh6 Bed6 Bge6 Qdf1 g8Q Qa1 Rb1 h1Q Qf7 Qhf1 Kg7 Q1f2 Rh1 Bdc7 Bd2 Bh2 Bh6 Qf5 Bf4 Qf3 Ng1 Bg3 Rh5 Bh2 Nh3 Ba6 Bf1+ Bc4 Bg5 Bbf4 Bh4 Bb8 Bd3+ Ke3 Bg3 Bb5 Rg4 Ba6 Bf1+ Bd3 Bf4+ Ke4 Be2 Bb5 Bd1 Bf1 Be2 Rc6 Beb5 Rc8 Bc4
1B1rN1RR/1p1Qr3/N2n2n1/N1R3qp/5PrP/nbkNN2n/nR6/4K2B b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 axb4 e4 f5 exf5 e6 f4 Qf6 g4 Bc5 g5 Be7 Bg2 Qf8 Bf1 Bf6 gxf6 Qe7 Nh3 Qd6 Ng1 Qd8 d4 Kd7 h4 Kd6 a4 g5 f7 c5 f8N h5 a5 c4 a6 c3 a7 b3 f6 e5 f7 e4 Nh3 e3 Nd7 b2 f8R c2 Bg2 g4 Nd2 b1R Nf1 g3 Nc5 e2 Ba3 c1N Nf2 Bh3 Ra2 Qg5 Rb2 Nh6 Rg8 Na2 Nfd3 Rh7 Ne3 Nf5 Rf1 Ra1 Bh1 g2 Bb4 Rc1 Na6+ Rc5 Qa4 g1N Ba5 Nd7 Bc7+ Ke7 d6+ Ke6 Qb5 Re7 Bb8 Nf8 d7 Nd6 d8R Ng6 Rh8 Bf5 Rdg8 Nh3 Qa4 Rc8 Rg1 Rd8 d5+ Kf6 Qd7 Be6 Rg2 Bf7 Rb5 Be6 Rc5 Bf7 Kd2 e1N Kd1 Be6 Rb2 Nc2 Kd2 Na3 Ke1 Ndb5 d6 Bb3 Qc7 Ke6 d7 Nd6 Qc8 Rde8 Qc6 Rg7 Qa4 Ree7 d8N+ Kf6 Nc6 Ke6 Bc7 Rf8 a8N Rd8 Na5 Nc8 Be5 Nd6 Ng2 Kf5 Qd7+ Ke4 N8c7 Be6 Bc3 Bb3 Bb4 Kd4+ Ne3 Qg4 Ne8 Qg2 Re5 Qg5 Bc5+ Kc3 Rf5 Re5 Ba7 Rge7 Bb8 Rd5 Nc1 Rd2 Nd3 Rg2 Re5 Rg4 Rc5+
r2qBn2/1Rp3N1/rPRB4/n2np1Nn/B2kP3/2Q2B2/1r2nKb1/3B2QB b - - 0 1 illegal: No proof kernel
8/1Bp2NNK/2N2P1N/n1P5/2nr4/1qknpn1N/1B1br1Nn/1Q1RRr1Q b - - 0 1 legal: proof: g4 b5 e4 g5 a4 f5 axb5 d5 gxf5 g4 h3 g3 Bd3 Be6 Be2 dxe4 Bf1 Bf7 Rh2 Bh5 Rh1 Bg4 hxg4 Qd6 Nh3 Qd5 Ng1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kd5 Kg5 Kd4 b4 e5+ f6 a5 c4 h5 Kg6 a4 f4 e3 f5 g2 b6 e2 b5 e1R c5 e4 f7 e3 f6 h4 b7 h3 g5 h2 b6 a3 Bb2+ Ke4 d4 a2 d5 Rh4 d6 Nc6 b8Q Nh6 d7 Ne5+ Kh7 Re2 g6 Bd6 f8N Nc4 b7 Bg3 g7 Be1 g8N Bd2 Nc3+ Kd4 Nh3 g1N Bg2 Ng4+ Nh6 Nf3 Re1 h1N Ne6+ Kd3 Nd5 Nhf2 Qc1 Ngh2 Ng7 Rd4 Qd1 Qe8 d8N Qb5 Ndf7 Qb3 Rc1 a1N Ndf4+ Ke4 Bh1 Nd3 Ng2 Ra2 Qh8 Rf2 b8N Rf1 Nc6 Qb4 Qb8 Nf2 Ne7 Kd3 Re2 Nb3 Nh4 Re1 Ba3 Ra1 Qb5 Ne5 Bb7 Na5 Nc6 Nef3 Ng2 Qb2 Rb1 Kc3 Qb6 Nd3 Qb5 Bc1 Rd2 Re2 Qh1 Rf2 Re2 Bd2 Rg1 Re1 Qb6 Qa2 Qb1 Qb3 Rf1 Bc1 Rd2 Ree2 Re1 Rf1 Rdd1 Bd2 Bb2+
K5N1/1BBqb1N1/pp3bN1/2P3kN/7n/Nn2n1bb/QP2R2b/1Q1R1rN1 b - - 0 1 legal: proof: e4 c5 a4 h5 g4 hxg4 d4 f5 dxc5 b6 exf5 Nc6 a5 Rb8 a6 Rb7 axb7 Nb8 Ke2 Kf7 Kd3 Kf6 Kc4 d5+ Kb5 g5 c4 e5 h4 d4 f4 d3 h5 g3 c6 e4 c7 g2 c5 g4 h6 g3 h7 d2 Rh2 e3 Na3 Be6 c8N e2 Ne7 Nh6 Ng8+ Kf7 f6 Kg6 f7 e1B f5+ Kg5 f6 Na6 Kc6 Bf5 b8N Be7 Kb7 Nc7 f8Q a6 f7 Nb5 Nd7 Bh3 Ndf6 Qd7+ Ka8 Nd4 Nh5 Nhf5 Qb3 Nh4 Qa2 Nb3 Bc4 Be6 Bd5 Bh3 Bb7 Bf2 Qe8 Bd4 f8N Bdf6 Nh6 Rg8 h8N Rg7 Nhg6 Rf7 Nhf4 d1N Ng8 Ne3 Nh5 Bd4 Bd2 Rf1 Rd1 Bdf6 Qb1 Kg4 Qf7 Kg5 Ne2 g1B Ne6+ Kg4 Be1 g2 Bg3 Bf2 Bc7 g1B Neg7 Bg3 Rg2 Bh2 Ng1 Kg5 Re2 Nc1 Qfa2 Nb3 Qc1 Nd4 Qca1 Nb3 Q1b1
2N1Brk1/3N1QB1/Nqpn2Rb/2N2qQ1/P1nN4/5p1R/1qrq1P2/4NKn1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 b6 e4 Ra3 d6 Kd7 e5 Ke6 d5+ Kf5 e6 Bd7 exd7 Ra8 Ke2 Ke5 Ke1 Kf6 a4 g5 h4 Kg7 h6+ Kh7 h5 f5 Bb5 e5 Ne2 g4 Na3 f4 Qb3 e4 Kf1 g3 Rh3 e3 Nc2 f3 Ne1 Qc8 d8N Ra5 d7 Nf6 d6 Ne4 Nd4 Nc6 Bb2 Ne5 Nb7 Nc4 d8Q Qf5 d7 Ned6 Nc5 Kg8 Qg5+ Bg7 Qa2 b3 d8N Ra8 Rc1 Rc8 Be8 b5 Na6 b4 Bc3 b2 N8e6 b1Q Nec5 b3 h7+ Kf8 h6 b2 Rd1 Qbc2 Rc1 b1Q Ba1 Rg8 h8N Qb6 h7 Qcb2 Nf7 Bh6 Ne5 Rh8 Rc2 Rg8 h8N e2+ Kg1 g2 Nhg6+ Kg7 Ned7 Rf8 Rc3 Kg8 Re3 c6 Re6 Rb8 Ne7+ Kh8 Kh2 g1N Rg6 Rd8 Nc8 Kh7 Ned3 e1Q Qb3 Qed2 Ne1 Ne5 Qe6 Nec4 Qf7+ Kh8 Ndb8 Rd7 Kh1 Re7 Nbd7 Re2 Rh2 Qbc3 Nb7 Qdc2 Nb3 Nh3 Nb7c5 Qd1 Bb2 Rc2 Ba1 Qd2 Bb2 Nf4 Kg1 Ne2+ Kf1 Ng1 Rh4 Qcf6 Rh3 Qfc3 Qd5 Kh7 Ba1 Qcb4 Bg7 Q4b5 Nd4 Qb2 Nce6 Kg8 Nec5+ Qe6 Qdf5 Qe4 Qff6 Qf5 Qf7+
N1n2N2/6N1/2b2N1q/B1rn1Pq1/2p2prB/1QP1r2k/BK2B2n/R1NrR3 b - - 0 1 illegal: No proof kernel
1Q5b/1b2qnk1/1K3R1p/p1R1q1B1/3NN2P/R1qN3b/1bP4R/r1nB1RN1 b - - 0 1 legal: proof: d4 b5 a4 a5 axb5 f5 e4 c5 exf5 cxd4 f4 Nh6 g4 Bb7 f6 Kf7 g5 Ke6 f5+ Kd6 f7 Ng8 Ke2 Ra6 Ke1 Bc8 Qh5 Kc7 Qd1 Rf6 gxf6 Kd6 Ke2 Ke5 Kd3 g5 Kc4 d5+ Kc5 d3 b4 d2 h3 d4 b6 g4 b7 g3 b5 d3 b6 g2 Ra3 Na6+ Kb5 Bg7 b8R Nc5 f8N Nb3 f7 Kf6 b7 e5 Bb2 Nh6 Rh2 Qe7 Nc3 e4 Bc1 e3 Kb6 e2 Ne6 e1Q f8R+ Nf7 Nd4 Q1e5 Be2 h6 h4 Rg8 Bg4 Bh8 Ne4+ Kg7 Be2 Bd7 Rbc8 Bc6 b8N Bb7 Qf1 d1B Bg5 d2 Nbc6 Nc1 Bh5 Bf3 Qb5 d1Q Nb4 Qd3 Rc5 Qc3 Nd3 Bg4 Qb3 Bh3 Bd1 Nd8 Rf6 Nf7 Ngf3 g1B Qb2 Be3 Ng1 Na2 Qb5 Bc1 Qe8 Bb2 Qb8 Kh7 Re6 Nc1 f6 Nd6 f7 Kg7 f8R Nf7 Rfc8 Rd8 Rf6 Rd5 Rf1 Rd7 R8c6 Rd6 Ndf3 Rd4 Rf6 Ra4 Rb3 Ra2 Ra3 Ra1 Nd4
bR2n1n1/3Bq1Nk/2Nb2p1/1B1KR2Q/p2RP3/R7/1rb2qPB/nn4BR b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 e5 h4 exf4 a4 a5 axb5 f6 h5 g6 h6 Ra6 Ra3 Re6 Ra4 Re7 Ra1 Rg7 hxg7 Qe7 Qa4 Qd7 Qd1 Qd8 Kf2 Kf7 Kf3 h5 Ke4 c5 b4 a4 d4 c4 b6 h4 b5 h3 d6 f3 d5 f2 b7 h2 b6 c3 d7 c2 d6 f5+ Kd5 f4 e4 f3 Na3 Qc7 d8R Qe7 d7 Na6 Be3 c1N b8B Nb3 Bb5 f1N b7 f2 Ne2 Nfd2 Re8 f1B d8R Nb1 Nf4 Bd3 Nh5 Bc2 Nc4 Rh7 Ra3 Na1 Na5 Nc7+ Kc4 Bd7 Bg1 Bc6 Rd5 Rh8 Red8 Rh7 Re5 Ne8 Rd4 Rh8 Bd6 Rh7 b8R Ba8 Nc6 Rh8 Nf6 Rh3 Kc5 Rb3 Nh5 Rb4 Kd5 Rb2 Ng3 Kf6 Nf5 Kg5 Ne3+ Kh6 Nf5+ Kh7 Qf3 Qh4 Qg4 Qf2 Qh5+ Nh6 Bc7 Bd6 g8B+ Kh8 Be6 Kh7 Qg4 Ng8 Bd7 Qe2 Be3 Qf1 Ng7 Qf2 Rhd1 h1Q Qh5+ Nh6 Rc1 Qhh4 Rg1 Qe7 Rh1 Qf4 Bg1 Qf2 Rg5 Bc5 Bch2 Bd6 Qf3 Ng8 Re5 Bc5 Qd1 Bd6 Qh5+
Rqr2q1b/1bp2pBR/B1Q2B1K/q3n2P/1r4N1/1BR2P1B/2N4k/1r2R2r b - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Nf6 g4 hxg4 a4 Bc5 b6 Qe7 b7 Nc6 b5 Nd4 b6 Nb5 axb5 Ng8 Bg2 Qd8 Bf1 Bf8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 b8R d5 e4 g3 h4 a4 f3 d4 b7 a3 b6 d3 Bb2 g2 Qc2 d2 Nh3 g1R Nf2 d1R Ng4 a2 Ba6 g6 Qc6+ Qd6 Kg5 Rh7 Na3 Rde1 Nc2 Nf6 h5 Nd7 Rc1 Rg7 Kh6 a1Q Bd4 g5 Bb2 Ra7 Ra8 Qa5 b8B Rb7 Ba7 Be7 Ba1 Rg8 Bd4 Rb8 b7 Bf6 Bb2 Rd1 Bad4 Bh8 Bdc3 Rd4 Ba1 Rgd1 Re1 Rb4 Bcb2 Rd2 Bd4 Rh2 Bdc3 Rh1 Bd4 Ke7+ e6 Re8 Bg7 Ne5 Nd4 Rg8 Rc3 Qd8 Nc2 Qf8 Qa4 Kd6 e7 Rb1 e8B Rb4 Bd7 Rb1 Nge3 g4 Qc4 g3 Bh3 g2 Ng4 g1Q Qa4 Nd3 e5+ Kd5 e6 Ne5 e7 Qa7 e8B Ke6 Na3 Kf5 Qc6 Kf4 Nc2 Kg3 Bd7 Q7b6 Be6 Qbb5 Nf6 Kh2 Bb3 Be6 Bb2 Bd5 Ba1 Rc8 b8R Qbb6 Qe6 Bb7 Qc6 Rd8 Rc8 Rd4 Re8 Rb4 Ng4+ Kg3 Re6 Qa7 Rg6 Qab8 Rg5 Qe7 Bf6 Rc8 Rg7 Qd8 Rh7 Qg8 Rd3 Qf8+ Bg7 Ng6 Bf6 Ne5 Nf2 Kh2 Rde3 Nc4 Rc3 Ne5 Ng4+
2R2Rnq/N3p3/NK1RBb1P/1Q3n2/1BrRqnN1/1r2P3/1kp3N1/n2q3R b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 f3 hxg4 Na3 g3 Nb1 g2 Nc3 g5 Nb1 g4 Nh3 g3 Ng1 Bg4 fxg4 Qc8 Qa4 Qd7 Qd1 Qd8 b4 Kd7 h4 Kd6 d4 c5 Kd2 f5 Kc3 a5 Kc4 f4 g5 f3 e3 a4 h5 f2 g6 a3 h6 a2 b6 Ra7 Kb5 c4 g7 c3 b7 c2 Ne2 g1Q Qd3 g2 Nf4 Rh7 Na3 Ra4 Bd2 Qd7+ Kb6 Ra7 b5 Ra5 Rd1 Qc8 Bb4+ Kd7 d6 a1N d5 Nc6 b8R Nd4 Qb3 Ra8 Bc4 Nf5 Rd4 f1Q Qa4 Qe8 Rc8 Qd1 Qa6 Rh8 Ba2 Nf6 g8N Bg7 Bc4 Qf2 Qa5 g1N Ng2 Ra7 Ba2 Rc7 Bb3 Qd8 Bc4 Ke8 d7+ Kf7 d6+ Kg6 Ba2 Qff3 Be6 Ne2 Qa4 Qe8 d8R Nf4 d7 Qe4 Qa6 Rc4 Qa5 Qf7 Rf8 Qe8 d8R Kg5 Qa6 Kg4 R8d5 Kf3 Rd6 Ke2 Qb7 Ng4 Nf6 Rg8 Nd7 Nf6 Ne5 Rh8 Ng4 Ng8 Ka5 Bf6 b6 Rc3 Nb5 Rb3 Na7 Qd8 Qb8 Qe8 b7 Qd8+ Rb6 Qe8 Rdc4 Kd3 Qe5 Qd8 b8N Qdd4 Rbc6 Qc3 Ra6 Kd2 Rd4+ Kc1 Kb6 Kb2 Qc5 Ng6 Kc7 Nfh4 Rd2 Nf4 Rfe8 Bd4 Rd6 Nf6 Na6 Nf5 Rcd8 Rf8 Rb8 Ng8 Kb6 Bh8 Ra8 Bd4 Reb8 Rc8 Rd3 Be5 Qb5 Rc4 Rf8 Bh8 Rad8 Qg7 Rb8 Qh7 Rbd8 Bf6 R3d4 Qh8 Rc8
3bR1Rk/2r1NrpN/2q1P2p/K1BRQ1p1/4P3/3r3Q/2bRnR2/bn1B1R2 b - - 0 1 illegal: No possible last move, all moves rejected
1qn5/R1N1RPb1/pNn1p3/3rRP2/5r1Q/r1Nb3N/n1B2pk1/NKB4R b - - 0 1 illegal: No proof kernel
1R2BB1r/3np2R/5b1r/p3PR2/3Kpq2/bP1nBNbN/3R1nkB/3Q2B1 b - - 0 1 illegal: No proof kernel
Rr1N2kr/1QbKp3/PR3N1B/N2B2bq/rp1p3R/1PR1nN2/8/3N1n1b b - - 0 1 illegal: No possible last move
1r1B1BBR/n3p2P/N1r2knP/7b/1q1pR2b/BN1p2R1/1RQ2KRb/5n2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 b4 a5 f4 d5 c4 g5 h6 g4 c5 g3 h5 g2 b6 a4 h7 a3 f6 a2 b5 Be6 h6 Bg7 b7 Bg4 c6 Bf8 c7 Bd7 c8R Bc6 b6 Ke6 f5+ Ke5 f7 Kf6 Qc2 Ke5 f6 Ra4 Na3 Qd6 Rh2 Be8 Nb5 Qa3 Rc3 Qb4 Ba3 Ra6 Bc4 Bg7 f8B Bh5 f7 Kf6 Ne2 g1B Nc1 Nc6 b8B Na7 b7 Rc6 Rg2 Bh2 Bc7 d3 b8R d4 Rg3 Qb1 Kf2 Qb4 Rb1 a1N Bd8 Nb3 Nc7 Nd2 Rb2 Nf1 Na6 Kf5 Nb3 Bf6 Rb6 Bh4 Rb5+ Kf6 Re5 Nd2 Re1 Nf1 Re2 Kf5 Re1 Nf6 Re4 Nd7 Be6+ Kf6 Rc5 Rg8 Rg5 Ne5 Rgg4 Bg5 Rg2 Rh8 R4g3 Bh4 Ba5 Bg4 Bg7+ Kg5 f8R Ng6 Bf7 Kf5 Rd8 Bh5 Bb6 Rf8 Bd5 Rf7 Rh8 Rf8 Bg8 Rb8 Bf8 Kf6 Bd8
R5qB/1Bp1NBn1/1r1N2NN/7N/1Pbb1n2/Q1nrb2R/kp3P1p/3B1K2 b - - 0 1 illegal: No possible last move, all moves rejected
r1nqn3/1pB1R2b/b3Pnp1/1PQ2NN1/3NrN2/N1R2Rbp/K7/1B2k1R1 b - - 0 1 illegal: No proof kernel
q1nkB2b/RR5K/1RQ5/r1BNR3/P6p/3p2n1/1q1RQPbp/rR3qN1 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 h4 gxh4 d4 Nc6 dxc5 Nb8 Kd2 b5 Ke3 d5 Kf4 h5 Kg5 e5+ Kg6 d4 c4 h3 a4 h2 g4 b4 c6 b3 a6 b2 c7 e4 f6 h4 g5 e3 a7 e2 c5 e1Q f7+ Ke7 c6 Rh7 Ra2 Bg4 c8Q Na6 c7 Bh6 f8R Bf3 Rf6 Bg2 Rb6 Nb8 Nc3 Bh3 Be3 Na6 Qe2 Bg2 Nd5+ Ke8 Qb7 Bg7 c8R Bh8 Rb8 Rd7 Qc6 Nc5 R8b7 Ne7+ Kh7 b1Q+ g6 Ne4 g7 Nc8 Rd2 d3 Bc5 Rb8 a8R Qb2 Raa7 Qeb1 Qf3 Ng3 Be2 Qf1 Qg4 Qe7 Qe4 Kd8 Bh5 Qf8 Qe2 Ra8 Bg6 Re7 Be8 Re3 g8R Re4 Qf3 Re1 Rg5 Ra1 Qe2 Qf3 Re5 Qf8 Rc7 Qf3 Rab7 Ra5 Rg7 Qf7 Ra7 Qb7 Rge7 Qb8 Reb7 Qa8 Nh3 Qfb1 Re1 Q1c1 Ng1 Qd1 Qg4 Qe2 Rb1 Qf1 Qe2
NN1KQ1r1/3R3P/pBNR2pb/6k1/1p5B/3BN2r/nP1q1r1b/1B1Bn1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 c4 d5 cxd5 e5 fxe5 b4 Bh3 Ba6 Bf1 Bb5 axb5 Qd6 Nh3 Qe7 Ng1 Qd8 Kf2 Ke7 Kg3 c5 Kf4 f5 Kg5 a6 d4 g3 e4 c4 h4 c3 h5 c2 b6 f4 b7 g2 e6 f3 h6 f2 e5 Qd6 h7 Qc5 d6+ Ke8 e7 Kf7 e8B+ Ke6 d7 Qc3 d8N+ Ke7 d5 Qc5 e6 Nf6 Bf4 c1R Qe2 Qa7 Bh5 Nbd7 b8N Rc7 Nf3 g1B Nc3 Nb6 Nd1 Nc8 Nd2 Ng8 Bg3 Rc1 Ne3 Bh2 Ndc4 Nh6 Nb6 Rc3 Rd1 Ng4 Kf5 Ne5 Ndc6+ Kd6 e7 g6+ Kf6 Rg8 e8B Qd7 Bf7 Na7 Qb5 Bh6 Bd3 Ra3 Rd2 Rf8 Rhd1 f1Q+ Bf3 Rg8 Be6 Qh1 Bef5 Qg1 Bb1 Rc3 Bfd3 Ra3 Qa4 Nb5 Bh5 Ra7 Na8 Nc3 Bhe2 Na2 Bh5 Kc5 d6 Nf3 Bg4 Ne1 Bf3 Qh3 d7 Qhg2 d8B Rf7+ Ke6 Rf4 Kd7 Qe2 Kc8 Kd6 Qb5 Ke6 Qe5+ Kf7 Qe8+ Kg7 Bb6 Kf6 Kd8 Kg5 Bb5 Qef2 Rd7 Qc2 R1d6 Qd2 Bd1 Rf2 B5d3 Rc3 Bf1 Rc4 Bfe2 Rh4 Bed3 Rh3 Bh4+
BN1N1kqq/nB2Pb1p/KR4B1/p1B4N/3Q1n2/Pp2brr1/B1r4R/7N b - - 0 1 illegal: No possible last move, all moves rejected
1NN2r2/n1p2r2/3pbn2/3Q3P/2PRqNq1/B3Rpb1/k2qN1N1/1B1N2KQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e5 fxg5 hxg4 d4 Rh5 dxe5 Rh8 Kf2 Ke7 c4 Ke6 h4 f5 e4 a5 b4 d6 g6 f4 b6 a4 b7 a3 g7 a2 b5 f3 h5 Ra5 b6 Rd5 Rh4 Nf6 g8N Bg7 Ne2 g3+ Kg1 g2 Ba3 Ra5 Ne7 Qe8 Qd5+ Kd7 e6+ Kd8 e5 Nh7 Nbc3 Nf8 Re1 a1Q Rd4 Rg8 Nd1 Nc6 b8N Nd7 b7 Qc1 Nf4 Nf6 Bd3 Ra8 Bb1 Qd2 Re3 Na7 Ne2 Bd7 Nc8 Rf8 Nf4 Qg6 e7+ Ke8 Nc6 Qe4 b8N Be6 Bc2 Kf7 e8N Bh6 Bb1 Bg5 Nb6 Bh4 Ng7 Bg3 Nf5 Ke8 Nc8 Rf7 Na5 Kd8 Nb3 Ke8 Nc1 Kd8 Na6 Kd7 Nce2 Rb8 Nh4 Ra8 Ne7 Raf8 Nc8 Qdc2 Qa5 Kc6 Qe1 Qd2 Qf1 Bf5 e6 Bh3 e7 Be6 Nb4+ Kc5 e8Q Qc3 Nc6+ Qb4 Bb2 Qd2 Nb8 Kb4 Qe7 Ng8 Qg5 Nf6 Ba3+ Ka4 Bd3 Kb3 Qd5 Ka2 Bb1+ Ka1 Qe1 Bf2+ Kh2 Bg4 Nb2 Be6 Qh1 Be1 Nd1 Bf2 Nf5 g1Q+ Kh3 Qg6 Kh2 Bg3+ Kg1 Qg7 Nh4 Qg4 Bc2 Ka2 Nhg2 Qh4 Bd3 Qg4 Bb1+
1B2N1R1/rp2PB1n/1q3R2/2Qp1Bk1/1r4p1/b1q4n/PBRRb1NK/1B2q3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 f5 c4 d5 h4 g5 e4 b3 e6 Kf6 e7 b2 e8B g4 h6 f4+ Kh2 f3 h7 f2 e5+ Kf5 c6 Bc5 c7 Be7 e6 Na6 c5 Qd6+ Bf4 Qd7 h5 Rb8 c6 Kf6 h6 Bf8 e7 Nc5 Nd2 b1Q Ne4+ Kf5 Nd6+ Kf6 Bf7 Qe6 Bd3 f1Q Nh3 Qb6 Qc2 Ra8 Rd1 Qee1 Rd2 Bd7 c8R Ne4 c7 Ra4 Qc5 Ng5 Bb1 Qc4 Rf1 Bb5 Rf3 Qd3 Ne8+ Kf5 Rf1 Nf6 Rf3 Rg8 h8B Nfh7 Bb2 Bg7 Rf1 Bd4 Bd6+ Bf2 Nf4 Nh3 Ng2 Kg5 Bde5 Be3 Rf6 Qc3 Bd6 Rb4 Bg3 Nf8 h7 Be2 h8R Rg6 Rg8 Nh7 Rd8 Bf4 c8B Bd6 Bcf5 Re4 Qg1 Ba3 Rc8 Rb4 Bb8 Qd3 Rcc2 Qc3 Rh8 Rg8 Qc5 Rf8 Ng7 Re8 Rg8 Rc8 Bc7 Ra8 Bb8 Ra7 Ne8#
B5rR/1pPN3N/1K1BBpn1/1BN1nR2/1B1q1P2/1p2b1q1/2NQ3r/1bnk4 b - - 0 1 legal: proof: e4 a5 d4 d5 exd5 c5 dxc5 h5 g4 Nh6 gxh5 Ng8 b4 axb4 Kd2 Kd7 Kd3 e5 Kc4 g5 Kb5 g4 h4 g3 c4 e4 f4 b3 a4 e3 c6+ Kd6 h6 g2 c5+ Kc7 a5 e2 a6 e1N h5 Nf6 h7 Nc2 h6 Be7 a7 Bd6 Bd2 Rf8 h8B Ne3 h7 Qe8 Nh3 g1Q Na3 Nh5 Be5 f6 h8N Qe6 Ng6 Nd7 Nc2 Qg8 Bb4 Ng3 Qd2 Nef5 Ra5 Ne7 Ng5 Qd4 Rh8 Ne2 Nh7 Nc1 Bc4 Re8 Ngf8 Qg3 Bf1 Rb8 a8B Ng6 Bd3 Re7 Bc4 Rg7 Bf1 Rg8 Bd3 Kd8 c7+ Ke7 c6 Bc5 Bd6+ Kf7 Bc4 Nde5 Bd3 Bf5 c8B Kg7 c7 Kh6 Be6 Kh5 Nd7 Kg4 Bc4 Kf3 Bd3 Qe4 Bf1 Bg1 Be2+ Kf2 Kb6 Rbf8 Bb5+ Kf3+ Bdc5 Be3 d6 Qd3 Nb8 Qc3 d7 Qd4 d8N Rf7 Nd7 Be4 Na3 Bb1 Nc2 Re7 Nf7 Ree8 Nd6 Re7 Nhf8 Rh7 Ne4 Rh2 Nh7 Qd5 Qd4 Qc4 Bd6 Ke2 Nec5 Qd3 Qb2 Kd1 Qd4 Nf8 Na6 Ng4 Bc6 Qd2 Rf5 Ng6 Nac5 N4e5 Bb5 Qd3 Qc3 Qd4 Qd2+
3Nrn1B/Pbq2NKp/P1B4R/k1p5/R1rQ4/2R1b1p1/Rr1n2q1/1RB1B3 b - - 0 1 illegal: No possible last move, all moves rejected
1N2R3/p3q2k/b1P1Qp2/b1q1R1q1/1Q1Q4/Pr2pQ1n/n1r1B3/N1QKBQ2 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 b4 Qc7 bxc5 Qd8 e4 e5 fxe5 dxe4 c4 b5 h4 g5 d4 f6 a3 Kf7 e6+ Kg7 c6 g4 c7 g3 e7 b4 e8Q b3 h6+ Kh7 c5 g2 h5 b2 d5 Ba6 c8Q Bg7 d6 Qe7 d7 Qf8 d8Q Bc4 Nd2 b1Q Ne2 g1Q Nd4 Bd3 N2b3 Qg2 Nc6 Be2 Q8d4 Qc2 Bd2 Qf7 Qee6 Nd7 Nb8 Ba6 Qf3 Bf8 Be2 Nb6 c6 Qgg7 Qb7 Nd5 Qbb4 Qc5 Kd1 Nge7 Be1 Nf4 Rg1 Nh3 Rg5 Nd5 Re5 Be7 Ra2 Qff8 Na1 Bd8 Rc2 Qff7 Rc3 Qg1 Re3 Qg5 Qf1 Ba5 Qf3 Kg8 h7+ Kg7 Qf1 Qfe7 h6+ Kg6 Qf3 Re8 h8Q Nc3+ Kd2 Na2 h7 Rd8 Kd1 Rd7 Qf8 Rb7 Qbc4 Rb3 h8Q Rb2 Qh4 Rc2 Qhf2 Kh7 Qb4 Bd8 Qf1 Ba5 Nd7 Rd8 Nb8 Rd7 Qd8 Rb7 Q8d6 Rb5 Qbd2 Rb3 Qc1 Qc3 Q6b4 Qcc5 Rc3 e3 Rc4 Qd5 Rc5 Qc4 Rcd5 Qc3 Rd8 Qcc5 Re8
B2N3b/N2NPn1N/6n1/1rp1RB2/K3Q1p1/1BBp2qb/1Pn1rn2/2k1RN2 b - - 0 1 illegal: No possible last move
NQ4R1/R2Np1k1/3B1b2/1b2R3/2P1Rbb1/p3qnRn/3BPp2/KN2N1rr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 Ba6 dxc5 Bb7 Bh3 Bh6 fxg5 Bg7 g6 Bc8 g5 Bf8 Bg4 hxg4 Kd2 a5 Kc3 d5 b4 f5 Kb2 f4 c4 g3 h4 f3 h5 f2 h6 a4 g7 Kf7 h7 d4 g6+ Kf6 c6 d3 b6 d2 b7 g2 c7 Na6 b8B Qd7 b5 Nb4 b6 Qh3 b7 Qe3 Qb3 d1B Rh5 Nc6 Bd2 Nd4 Re5 Bg4 c8N Nf3 Bd6 Nh6 g8R Nf7 b8N N7g5 Nb6 Nh3 Qb4 Ra7 Na8 Bg7 Ra3 Bc2 Ka1 Bcf5 Re4 Bd7 Qb7 Bb5 Nd7+ Kg5+ Re5+ Kh6 Qb8 Bf6 g7 Ra5 Rd3 a3 Rd4 Ra6 Rde4 Rc6 Rc8 Ra6 g8R Ra5 Rc7 Ra6 Rgc8 Kg7 Ra7 Rb6 Rc5 Rc6 Rd5 Rcc8 Rd3 Rcg8 Rc3 Rd8 Rc1 Qg5 B6b4 Ne1 Nc5 Qe3 Nf3 g1B Bdc3 Rd1 Nd7 Ng5 Bd2 Bh2 Bc5 Bf4 Bd6 Qc5 Rc3 Rc1 Nh4 Rd1 Rf3 Qe3 Rg3 Nef3 Ng2 Rg1 Ne1 Re8 h8R Rc8 Rh4 Rh8 Rh7+ Kg6 Rf7 Rhh1 Rh7 Nh3 Rh8 Kg7 Rg8+
1b1r2nN/NB2p2k/BR1Nn1NB/1Pn3Q1/6b1/1pK3Rq/p3NP1n/1B5r b - - 0 1 illegal: No proof kernel
B2bq3/1nR1bBpK/P1R1N3/3p1p1Q/1B3P2/3b1Brn/Nk1Q1B1q/n5B1 b - - 0 1 illegal: No proof kernel
8/2B1bQ1p/q1B4K/5B1b/3qP2P/N1BrNpRQ/B1pkbBn1/R2q3r b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 Bb7 axb5 Ba6 f4 gxf4 c4 Nc6 c5 Na5 c6 Qc8 b6 Qd8 b5 Bc8 Qc2 Bd6 Qd1 Nb7 cxb7 Bf8 Kd2 Ke7 b8B Ke6 h4 Kf5 g4+ Ke4 g5 a5 b7 c5 g6 d5 g7 f5 b6 a4 e6 c4 e7 d4 e8B f3 Na3 d3 Ba7 f4 b8B f2 b7 f3 Bc7 Ne7 b8Q Qd4 g8B Ng6 Qbb3 Bg4 Rh3 Bh5 Rg3 Be7 Nh3 Nf4 Bb2 Ng2 Nf4 Rb8 Nd5 c3+ Kc1 c2 Kd2 Rb4 Bc6 Rb6 Be6 Rd8 Qa2 Rd6 Ne3+ Kf4 Bf5 Ra6 Nb5 a3 Qf7 a2 Na3 Ra4 Ng4 Rb4 e4 Rb6 Be2 f1B Ne3 Rb3 Bc1 Rb1 Bb2 Qc4 Qe1 Qa6 Qf2 Rc1 Qg1 Rb1 Qh2 Re1 Qh3 Rc1 Kc3 d2 Bc4 Be2 B4d5 Rb1 Kd4 Rh1 Ba5 Rd7 Bc7+ Bd6 Bb3 Rd8 Kd5 d1Q+ Ke6 Rd7 Kf6 Rd8 Bcb6 Be7+ Kg7 Rd7 Kh6 Rd3 Rb1 a1Q Ba2 Qd2 Re1 Qad1 Bd8 Qb4 Bc5 Qd4 Ba7 Qd2 Ra1 Qd1 Bc7+ Bd6 Nf1 Qdb6 Nh2 Ke3 Ng4+ Kd2 Qe7 Bb4 Qf7 Qc5 Bab6 Qc3 Bf2 Be7 Ne3 Qd4 Bc3+
R4Bqn/3B1R2/1pR1N1N1/Bn1p4/1K3B1r/R1QR4/rp1P1nP1/1rb2k1q b - - 0 1 legal: proof: e4 g5 b4 f5 exf5 g4 b5 Bg7 b6 Bh6 c4 Bf8 c5 g3 c6 axb6 hxg3 b5 g4 b6 g5 Bb7 cxb7 b4 a4 Kf7 f4 d5 g6+ Kf6 g7 c5 a5 e5 a6 h5 a7 h4 Qf3 e4 Bb2+ Ke7 f6+ Kd6 f5 b3 f7 e3 f6 h3 Bc3 h2 Na3 e2 Nh3 c4 Nb5+ Kc5 Nc7 Nh6 g8R Na6 Ba5 Kd4 b8B c3 Nf4 c2 Rg3 c1N Ng6 Ba3 f8B Nf7 Qc3+ Ke4 Rh3 Rh4 Ne6 Nc7 Rd3 Nb5 Bf4 Nh8 f7 Qb8 Rg1 h1Q Ra2 Bb2 Ra3 Qe8 Kf2 e1R Be2 Qb8 Bg4 Qc8 Nc7 Qd8 Bd7 Rd1 Ne6 Qg5 Rh3 Nd3+ Ke2 Rb1 Rc1 Nf2 Rc2 Bc1 Rd3 Re8 a8R b2 Bfb4 Rc8 f8R Rc4 Bbd6 Ra4 Rf7 Qd8 Bdb4 Qg8 Bf8 Ra1 Rb3 R4a2 Ra3 Rb1 Qf6 Qh2 Rc6 Qh3 Qc3 Qh1 Rg7 Kf5 Rf7+ Kg4 Be3 Kg3 Beh6+ Kh2 Bf4+ Kg1 Ke3 Na7 Kd4 Kf1 Qc5 Nh3 Kc3 Nf2 Kb4 Nb5 Qc3
1R2nRQ1/2bp4/3RPNB1/3PNb2/1rpbR3/bR3K1p/1bq1r2Q/R1Bk4 b - - 0 1 illegal: No proof kernel
1n3n2/krq5/3rQR1r/p1RP2rN/N3pR1p/3rN3/P1NbK1R1/R1BB4 b - - 0 1 legal: proof: e4 g5 b4 c5 bxc5 d5 h4 dxe4 hxg5 Na6 g4 Qd5 g6 Nb8 g5 Bh3 f3 Bg4 fxg4 Qd8 d4 Kd7 c4 Kc8 c6 f5 g7 e5 c7 b5 g6 Kb7 c8N a5 g5 h5 c5 b4 c6+ Kc7 d5 e3 Na3 f4 Ke2 e4 Nb6 b3 Nf3 h4 Nd2 b2 Ndc4 b1R Na4 Qd6 Nc2 Ne7 g8R Ra6 g7 Rb7 g6 Rh6 Qd3 Kc8 c7 Qc5 Rh8 Rd6 g8R Qa7 g7 Ng6 Qd4 Qc5 Qf6 f3+ Ke1 f2+ Ke2 Qc6 Qe6+ Qd7 Bh3 f1R Bg4 Rf3 Rf1 Rf5 Rf4 Rg5 Ke1 e2 N4e3 Rgh5 Kd2 e1R Bd1 Rg5 Rh7 Reg1 Ke2 R1g3 Rf6 Ra7 Rf4 Kb7 c8R Qc7 Rhh8 Be7 Rcf8 Ka8 R8f6 Rb7 Rc8 Bf8 g8N Ka7 Rh7 Be7 Rg7 Nf8 Rgg6 Qd8 Rc5 Qc7 Rf7 Rf3 Nf6 Rh3 Nh5 Rhg3 Nf1 Rd3 Nfe3 Bf6 Rfg7 Bc3 Rgf6 Bd2 Rg8 Re5 Rg1 Rg5 Rg2
K6k/N2NB3/2p2BBp/Pr3pqP/b4Q2/R1rN2B1/1rq1nbBR/r3N3 b - - 0 1 illegal: No possible last move, all moves rejected
6rB/3qNN2/P1BRN1p1/1R1Bnnp1/1bkB3p/qN3b1P/8/2bQbKN1 b - - 0 1 legal: proof: c4 b5 b4 d5 cxd5 a5 bxa5 f6 d4 Qd7 g4 Qe6 e4 Nh6 d6 Ra7 d5 Qd7 e5 Qd8 g5 fxg5 d7+ Kf7 Ne2 Ra6 Ng1 Rd6 exd6 Ng8 f4 c5 a4 h5 f5 e5 f6 c4 h3 e4 a6 b4 a5 e3 a7 c3 a8B b3 a6 h4 Nd2 b2 Bd3 b1Q Nb3 c2 Bc6 g6 Be4 e2 Bb2 c1B Ra5 Be3 Rb5 Rh5 Bd4 Qe7 d8B Qd3 d7 Qa3 d6 Ke6 f7 Bb7 B8f6 Ne7 Bh8 Bc1 Kf2 e1B+ Kg2 Qc2+ Kf1 Nf5 Rh2 Rh7 Rd2 Rg7 Rd3 Be7 Rd2 Rg8 f8N+ Kf7 Rd3 Qd2 Ne6 Ba8 Nc7 Bf8 Nd5 Ke6 Ne7 Bb7 Bh1 Ba8 Bce4 Nc6 d8N+ Kd7 Nf7 Ke6 d7 Ne5 Nd5 Bb4 d8N+ Kd7 Ne6 Kc6 Rb8 Bb7 Ne7+ Kb5 Bc6+ Kc4 Bhe4 Ba8 Rb5 Bb7 Be3 Ba8 Rd6 Qd4 Bf2 Qa7 Bd4 Qc7 Bd7 Bd5 Bc6 Qd7 Bc2 Bh1 B2e4 Bf3 Bed5+
1n2B3/1P4Rb/rk6/pB2Nqb1/3q2RR/Pnpqp2Q/2q2N1K/B1R3BB b - - 0 1 legal: proof: e4 b5 c4 bxc4 f4 a5 h4 d5 exd5 g5 hxg5 Be6 g4 Kd7 f5 Ra7 g6 Ke8 g7 Ra6 g5 Rb6 Rh2 Bc8 Rh1 Rg6 fxg6 Bb7 Ne2 Ba6 Ng1 Bc8 Kf2 Kd7 Kg2 c5 d4 Kc7 b4 f5 a3 h5 b5 e5 b6+ Kb7 d6 c3 d7 c4 d5 f4 d6 c2 Bb2 c1Q Qb3 f3+ Kh2 f2 Qh3 h4 Nc3 e4 Nd1 c3 Nf3 Qe3 Bb5 f1Q Nf2 Be7 Ne5 Na6 Rc1 Qd2 Ba1 Nh6 g8B Qd4 g7 Nb8 g6 Nf5 Bf7 Bg5 g8R Rh6 g7 e3 Be8 Qf6 d8R Qfd3 d7 Qc2 Rhg1 Qdd3 Rg3 Nd4 Rg4 Qff5 Rh8 Rg6 g8B Nb3 Bd5+ Rc6 Bh1 Qd4 Qf1 h3 Rhh4 Qcd3 Ba4 Ka6 b7 Kb6 Bb5 Qc2 Bg6 Rf6 Rg8 Qdd3 Rg7 Rc6 Kg3 h2 Qh3 Qd4 Be8 Rh6 Bhc6 h1Q Bd5 Qhf3+ Kh2 Qfe2 Bh1 Qed3 d8B+ Kc5 Bc7 Ra6 Nc6 Be6 Bf4 Kb6 Ne5 Bd7 Kg1 Be6 Bh2 Bg8 Kg2 Bh7 Bg1 Be7 Kg3 Bg5 Kh2
N1RN2bN/7N/bNb4p/RPrB3r/K1pb1n1q/4kQB1/BpB4P/6q1 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 f4 g5 fxg5 b4 Qd3 Nc6 Qd1 Na7 b3 Nb5 cxb5 a4 Qd3 axb3 Qd5 Bh6 Qd1 Bf8 Kd2 Ke7 a4 Ke6 e4 d5 g4 f5 g6 c5 a5 b2 Kc2 d4 Kb3 h6 g7 d3 g5 d2 g6 f4 a6 f3 a7 f2 Nf3 Nf6 g8B+ Ke7 e6 Kd6 e7 Bf5 e8N+ Kd7 g7 Rh7 e5 Nd5 Nh4 Nf4 Nd6 Rc8 Nf7 Ke6 a8N Kd5 e6 Kd4 e7 Ke3 Nc3 b1B e8N Bbe4 Ra5 Bc6 Bd3 f1B Ka4 b3 Nf6 b2 Bc2 Bc4 Ng6 Rh8 Nh7 Qh4 Qf1 Be7 Rg1 Bf6 Nd8 Bd4 Bd5 Re8 g8B Re5 Nh8 Bfd7 Bgf7 Rh5 Rg8 Bb7 Qg2 Ba6 Bfe6 Bc6 Qf1 Bd3 Ba2 c4 Bd5 Bg6 Qg2 Bf7 Rf8 Bg8 Re8+ Be5 Qf3+ Kd4 Rf8 d1Q Bd2 Qf1 Be1 Qg1 Bg3 Rc7 Bde4 Bf6 Nd5 Be5 Ndb6 Rc8 Qd1+ Ke3 Bd5 Rc7 Nb7 Bd4 Rc8 Rf7 Nd8 Rff5 Bf7 Rc5 Bd5 Ng2 Qg4 Nf4 Qf3+
1n2B3/1k1N1Bnr/QN3R1p/1rnK4/N3p3/1np1P2q/5q1P/NBR1BB1q b - - 0 1 legal: proof: f4 g5 fxg5 b5 b4 a5 c3 axb4 Nf3 b3 Nd4 b2 Nf3 b4 Ng1 b3 Na3 c5 Nb1 c4 Na3 Bg7 Nb1 Ba6 d3 Be5 Nd2 Bd6 Nb1 Bb4 cxb4 c3 Kf2 Kf8 Ke1 Bc4 dxc4 Ke8 Kf2 f5 Ke3 d5 Kd4 Kd7 g4 Kc8 a4 f4 g6 f3 a5 f2 a6 e6 a7 h6 e3 Kc7 b5 Kc8 c5 Nd7 c6 Qe8 c7 Rb8 a8N Rh7 b6 Rf7 g5 Rg7 Qh5 Ndf6 b7+ Kd7 c8B+ Kc6 Nh3 Rf7 g7 Ne7 g8B Qf8 g6 Ne8 Nb6 Rh7 Nf4 Ng7 Na3 b1Q Bf7 b2 Na4 Kc7 Ke5 d4 Be8 d3 Nc2 d2 Qg5 d1N Bd2 Qf7 Be1 Nc6+ Ke4 e5 Bf5 Qf8 Kd5 Qf6 B5d3 e4 Ra3 Qc1 Na1 b1N Qh5 Nd2 Bb1 Nb2 Qg5 Ra8 b8N Nb3 Nd7 Kb7 Ra2 Rb8 Rg1 Nh5 g7 Nd3 g8B Ng7 Bgf7 Ndc5 Qf5 Qh4 Rg6 Qh3 Rc2 Qb2 Rc1 Qa2 Rf6 Qe2 Bg2 f1Q Qe5 Qh1 Bf1 Qf2 Qc7+ Ka8 Qa5+ Kb7 Ng6 Rd8 Ne5 Nb8 Nc4 Rc8 Ncb6 Rc6 Na8 Ra6 N8b6 Ra7 Qb4 Ra5 Qa3 Rb5 Qb4 Qfg1 Qa5 Qf2 Qa6+
1Q1bK2B/Q5p1/3QQp2/1nqp1Qn1/4bRNk/1RbN2P1/3P1qbn/3B3Q b - - 0 1 illegal: No possible last move
1B3N1b/K3Q1r1/4B1p1/p1pq2N1/1n1r1n2/1Pp1N1BB/1Bb1Rr1P/k4N1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 Kd7 Ke3 Ke6 d4 Kd5 h6 a5 h7 f5 b6 c3 e6 Kc4 d5 g6 e7 c6 e8N Bd6 b7 Nf6 b3+ Kb4 Kd4 f4 e4 f3 e5 f2 e6 Ne4 e7 Nd2 Nc7 Qd7 e8B Bf8 d6 Qe6 d7 Nc4 d8N Rg8 h8B Qe2 Ra2 Bd6 Bh3 f1R Nd2 Rf2 Bed7 Ne3 Bde6 Nd5 Qe1 Qd1 Be5 Nf4 Nf3 Na6 b8B Rg7 Ng5 Ra7 Rb2 Ka3 Nd5 Rad7 Ne3 Nb4 Qe2 Bc7+ Kc5 Rd4 Ndf1 Ba6 Qe1 Bd3 Qe2 Bd6+ Kb6 c5 Qe1 Be7 Ka7 Bc2 Bed6 Bf6+ Bdc7 Rf3 Qh4 Rf2 Qh7 Rg8 Qe7 Bh8 Be5 Rg7 Bed6 Ng2 Bg3 Qf3 Bd5 Qe4 Nde6 Nf4 Nf8 Qf3 Bde6 Qd5 Rb1+ Ka2 Bb2 Rf7 Rd1 Rg7 Rd2 Kb1 Re2 Ka2 Bc1 Ka1 Bb2+
2RK1br1/1b1PNP1p/B2n2B1/2B1Q3/1nR5/p2p1Bp1/3R1RB1/Nr1qk2n b - - 0 1 illegal: No proof kernel
N6n/1BKppN2/1R3rn1/4Rr1N/pr3P1P/1B1bBQ1k/3p3b/N1NqB3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 g5 Kc5 a5 c4 g4 b4 g3 h4 a4 b6 d3 b5 g2 h6 Qe8 b7 Qg6 Kb6 Qg4 c5 Qg7 c6 Na6 b8B Qg6 c7 Rh7 Nd2 Nc5 Nb3 Bg7 Rb1 Qg3 Be3 d2 Bc4 Qe5 Na1 Rh8 h7 Na6 Qf3 Bh6 Ne2 g1R Nc1 Rg2 Re1 Qf4 Bb3 Rg5 Ba7 Ke5 f6 Kf5 f7 Nc5 f8N Nd3 Ng6 Ba6 c8B Ne5 Bb7 Rf8 Kc7 Rf6 b6 Bd3 Bb8 Bg7 Re2 Nh6 Re1 Rhf8 h8N Rh5 Nf7 Rh8 Qc6 Qd4 Nf4 Ng6 Qf3 Rg5 Ba7 Rg4 Bb8 Rf8 Nh5+ Rf4 B7d5 Qb2 b7 Qc2+ Bc6 Qd1 Bba7 Rg8 b8N Rf8 Na6 Rb8 Ba8 Rb4 Bb7 Bh8 Kd8 Bg7 Nc7 Bh8 Na8 Bg7 Qe4+ Kg4 Kc7 Kh3 Rb2 R4f5 f4 Bh8 Bf2 Bg7 Bae3 Bh8 Nd6 Nf7 Bg3 Bg7 Qf3 Nfh8 Nf7 Re6 Bg1 Bd4 Re5 Ref6 Be3 Bc5 Rc2 Ba7 Rc6 Bd4 Rb6 Bc5 Bef2 Bd4 Be1 Bg1 Bef2 Bh2 Bg1 Be2 Be3 Bd3 Be1+
1n4Qb/N1p1nr2/q2BpR2/r1PB2Nb/N2Pp1r1/K1N1p1Q1/5NNR/6k1 b - - 0 1 illegal: Other
BRBk4/2Np1n1p/2rP4/1p1KQ1Nr/4R1r1/5NpN/3B1bP1/q1Bbb2B b - - 0 2 illegal: Other
2n2Q2/p1K1Q3/N2R1p2/BpQ2r1b/2b3r1/5BP1/RPr1kpQQ/2bN1q1Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 a4 e5 c4 exf4 cxd5 Nd7 a5 Nb6 axb6 Bc5 Ra4 Bb4 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 e4+ Kb4 d4 c5 d6 h5 d7 c4 d5 c3 g6 f3 b7 f2 b8Q c2 d6 h4 g7 h3 Bd2+ Kb3 Nc3 h2 Na4 Qh4 d8Q Qg4 d7 Qh4 Qe7 f6+ Kd6 Rh7 d8Q Bg4 e5 Rh8 e6 Nh6 g8Q Bf3 Qdc7 Qb4+ Qc5 Nf5+ Kc7 Bh5 Ne2 Nd6 Ra2 Bh6 Nec3 Qc4 Bd3 Nc8 Be4 Qf1 Qf3 c1R Nd1+ Be3 Ba5 Rc2 Rg1 h1B Qef8 Bf7 e7 Rh5 e8Q Rf5 Qee7 Bc4 Qh5 Bd2 Qh2 Be3 Qb7 Bc1 g3 Bg2 Qgh7 Bf3 Qh1 Rb8 Q7h2 Bh5 Qa8 Qh3 Re1 Qg2 Re2 Qf1 Rd2 Rb7+ Kc6 Rd7 Rd6 Rd8 Kc7 Re8 Qff7 Rg8 Qff8 Rgg5 Nac3 Rg8 Nd5 Rg4 Nb4 Rc3 Nd3 Kc2 Qac6 Kd2 Nb4+ Ke2 Na6 Rc2 Q6d5 Be8 Q1g2 Rff4 Qdh5 Rf5 Qhh1 Bef7 Q5h2 Bh5 Bf3#
1rBQNBB1/2p1bN2/K1p1q1p1/6P1/b1rBN2p/R1nP4/4BR2/q1bkN3 b - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 g6 axb5 Bg7 c4 Nc6 h4 Nd4 h5 Bf8 h6 Ne6 c5 Ng7 c6 dxc6 hxg7 Qf6 Nc3 Qd6 Nb1 Qd8 g4 Ke7 b4 Ke6 e4 a5 b6 f5 g5 h5 b7 a4 b8N f4 b5 a3 b6 h4 b7 a2 Nc3 f3 Ba3 Bc5 Rh2 Ne7 Nd7 Nd5 b8B Rh6 g8B+ Ke7 e6 Kd6 e7 Ra4 e8B Rh7 e5+ Ke7 e6 Kd6 e7 Rh8 Rf2 Rc4 Ba7 Ba6 Ne5 Bb5 Bd7 Ba4 Bc8 Qd7 Nf7+ Ke6 e8N Kf5 Bb4 Kg4 Ne4 Be7 Bd4 Qe6 Bbc5 Nc3 Ba3 Bd8 Bf8 Kf4 d3 Be7 Kd2 Kg4 Qb1 Kf4 Qb8 Kg4 Rb1 a1B Rb3 Bb2 Ra3 Kf4 Ba6 Kg4 Qd8 Kf4 Bc8 Kg4 Re2 f2 Nf3 Kf4 Ne1 Kg4 Bg2 f1Q Rf2 Qh1 Nf3 Qa1 Bf1 Bb5 Kc2 Bc1 Kb3 Kf4 Bdg7 Ke3 Ne1 Rc5+ Kb4 Rc4+ Ka5 Ba4 Ka6 Nb5 N4f6 Nc3 Rf5 Kd2 Ne4+ Kd1 Bd4 Rh7 Nfd6 Rf7 Rf2 Rf5 Nf7 Rb5 Qd5 Rb2 Qd8 Rb8 Be2+
4Qb2/RR2Rrp1/2n4Q/3pN1Pk/2R2R1q/KppB1N2/1BP1b1q1/3nnR2 b - - 1 2 legal: proof: g4 f5 d4 e5 dxe5 b5 gxf5 a5 b4 axb4 h4 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Kf7 Be3 Ke7 Bc1 Ke8 Kd2 Kf7 a4 h5 f4 d5 e4 c5 a5 b3 Kc3 c4 Kb2 b4 a6 h4 a7 h3 a8R h2 e6+ Ke8 e5 Rh4 f6 Rh3 f7+ Ke7 f5 Rd3 R8a4 Re3 Qh5 Rg3 Qh6 Nd7 Bd3 Rf3 Nd2 Nc5 R1a3 Rf2 Ngf3 Ba6 Rf1 h1Q Ra2 Qb8 R2a3 Qg2 f6+ Kd8 Ra1 Ne7 Rb1 Nc6 e7+ Kd7 e8R Qb7 Ra8 Ke6 Ra7 Qc7 Re1 Bb5 Re4 Kf5 e6 Qf4 e7 Qh4 e8Q Rf1 Ree7+ Kg4 Ka1 b2+ Ka2 c3 Nc4 b3+ Ka3 Ne4 Rb7 Nf2 Ra1 Nd1 Nce5+ Kg3 Rb4 Ba6 Rc4 b1N+ Ka4 Nd2 Bb2 Nd4 Kb4 Bb5 Ra4 Nc6+ Ka3 Rf2 Nd4 Nf3 Raa7 Ne1 Ndf3 Rf1 Nd2 Qg1 Be4 Qg2 Rc5 Be2 Bd3 Rf2 Red7 Be7 f8R Rf1 f7 Nb4 Rc4 Rf4 Rg8 Bd6 f8R Kh3 Rf6 Rf1 Rgf8 Nc6+ Ka4 Bc5 R8f7 Bf8 Rde7 Rf4 Ka3 Kg3 Nd7 Kg4 Rf5 Rd4 Rf1 Re4 Nf3 Rf4 Qe6+ Kh5 Nde5 Rf6 Qd6 Rh6 Rff4+ Rg6 Qeb8 Rf6 Qe8+ Rf7 Qh6+
5N1N/n1p3Np/Q3RrR1/N3q1pP/1n5b/1R1B2R1/1NP1pq1k/KBq2r2 b - - 1 2 legal: proof: d4 e5 dxe5 b5 a4 f6 axb5 Be7 e4 Bc5 e6 Bd6 e5 Bf8 e7 Kf7 g4 Ke6 f4 Ba6 Bd2 Bb7 f5+ Kd5 e6 Kc5 Bf4 Kb6 Bg3 Be4 Be5 fxe5 f6 Bf5 gxf5 Kb7 Ra2 Kc8 Ra3 Na6 Ra1 Nb8 Kd2 a5 Kc3 g5 e8N d5 h4 e4 b4 e3 Kb2 d4 f7 a4 f6 d3 b6 d2 h5 Kb7 e7 Kc6 b5+ Kd5 b7 Ke4 b6 Kf4 Nh3+ Kg3 Rg1+ Kh2 Nf4 Na6 b8R Bg7 f8N Qd6 b7 Nb4 N4g6 Na2 Rg3 Ra6 Bd3 e2 Na3 Nc1 Nc4 a3+ Kb1 Nb3 f7 Bd4 Ng7 Qc5 e8B Rf6 Nb2 Ne7 Beb5 Bf2 Bbc4 Rg8 Nh8 Na5 Ba2 Nac6 Re8 Qe5 b8N Nc8 Re6 Nb4 Nc6 Na7 Na5 Be1 Qc1 Rf1 Rg6 d1Q Re6 Qd2 Rg6 Qdc3 Qe3 Qf4 Qb6 Qce5 Qa6 Qf3 Nd7 Qfe3 f8R Qf2 Rff6 Rf8 Re6 Rf6 Nf8 Qe4 Kc1 Qe5 Rb1 Nc8 Bb3 a2 Bbc4 a1Q Ba2 Qg1 Nbc4 Qad4 Rb3 Na7 Kb1 Qgf2 Nb2 Qdf4 Ka1 Qc1+ Bb1 Qg1 Rf3 Bh4 Re3 Qf2 Rg3
2R1N3/r1p1bp2/2B1R3/2p4N/R1K4p/PNN1qP2/bk1b1RnQ/B1rb1N2 b - - 0 1 illegal: No possible last move
Nnrk4/B2p1KBq/R7/1NrN4/P1qP4/p1NpQ1nB/RB2p1Bp/5b2 b - - 0 1 illegal: No proof kernel
qNB3RN/B1kppq2/K3P2B/1R3n2/1R1r1r1n/R2bq3/bbBP4/1n2BQ2 b - - 0 1 illegal: No proof kernel
1nnBQr2/3p3K/n2rBb1R/B1BPbkNb/1p6/rP2Q1B1/1q4B1/3b2RN b - - 0 1 illegal: No proof kernel
1bN5/p2Rp3/K3NQ2/b3Rn1r/P1R1bRB1/3nPR2/1Nnnk2q/N1B1rr2 b - - 0 1 illegal: No proof kernel
4b1RR/rBq1BrB1/N4b2/3pQ3/n1bN1pK1/1bBP1P2/nN4N1/bB4bk b - - 0 1 illegal: No proof kernel
1R2n3/B2pK2B/pn1Rb1p1/B2Pb2k/N1q4r/3rb2q/1R2BnPR/1Q2N1B1 b - - 0 1 illegal: No proof kernel
5r2/B1n1b1bN/bBrpBn1p/r2B1Q2/Qqp2K1R/B6k/q2P2NP/R4B2 b - - 0 1 illegal: No proof kernel
N6K/1rR1p3/1NN1B1Nn/1p3bpk/1q2B1P1/B3n3/1P1n1B1R/nN2brQr b - - 0 1 illegal: No possible last move, all moves rejected
b2k4/6Qp/BBn1R3/RqBr1pn1/2Bb1PB1/N2Kp2N/n3PQ1B/r4qn1 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 Kd2 f5 g4 a5 b4 e5 c4 d5 c5 e4 b6 e3+ Kd3 a4 c6 a3 b5 a2 g6 Bb7 c7 Qg5 c8B Nc6 g7 Nh6 g8Q Qf4 g5 Qg4 g6 Nf7 g7 Ng5 Rh6 Kd8 Re6 Qh5 f3 Qe8 Ba3 Bc5 Nh3 Ra5 Bg2 Ba8 b7 Ra7 b8B Rd7 Kc2 d3+ Kc3 d2 b6 d4+ Kd3 Rd5 b7 Ba7 Qg1 d1N Bc5 Nc3 Bh2 Bb6 b8B Ba7 Kc4 d3 f4 d2 Na3 d1N Bf3 Nf2 Bg4 Bb6 Ba6 Ba7 Rb1 a1Q Rb5 Qf1 Ra5 Na2 Qf7 Rf8 g8B Bb6 Qg7 Ba7 Bb4 Bd4 Ba7 Rf7 Bd6 Rb7 Bdc5 Rb1 Qg3 Ra1 Bf7 Nd3 Qg1 Ne1 Qf2 Nef3 Kd3 Ng1 Rf6 Rd6 Bfc4 Rd5 Re6 Qd7 Nb5 Qb7 Na3 Qb5 Bab6+
3r2N1/1qbnn3/pBNRp1B1/1Nr3Qp/5k1p/PNr3NR/1Q2P1n1/3bNK2 b - - 0 1 illegal: No proof kernel
2bRBq2/1B1p2p1/5R2/1nrRBrPp/2BQ3P/1p1Nrk2/r1BN2Rb/1K1n4 b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 Qc7 Bd3 Qb6 Bf1 Qd8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 h4 Ke4 g4 e5 a4 h5 f4 b5 c6 Ba6 a5 Rh7 f6 Rh8 c7 Nh6 c8B Qb6 f5 Bd6 c5 Qc6 g5 Bf8 f7 Bb7 f6 Be7 f8R Ng4 a6 Qb6 a7 Qa6 c6 Rh6 c7 Nc6 f7 Qa3 Ne2 Nf2 Bb2 Kf3 Rd8 e4 f8R+ Rf6 Rg1 e3 Rg2 Rf5 Rf6 Bd6 Qd4 Nd1 Nf4 e2 Nd3 e1R Ra2 Ba6 Bb7 Re3 c8B b3+ Kc1 Qb4 Ra5 Bh2 Ba1 Qf8 Bc3 b4 Rd5 Rb8 a8B Na7 Bc6 Nb5 Bc8b7 Rc8 Ba1 Nc7 Ba4 Nb5+ Bc3 Nf2 Kb2 Rc5 Ka1 b2+ Ka2 Re4 Bc2 Nd1 Bc8 Re7 Qg1 Re4 Be5 Na3 Rd4 Rc7 Nc1 Rf4 Bd5 Rc5 Bfc4 Rf5 Nd3 Nb5 Bf7 Re1 Rd5 Bb7 Na3 b1R Qd4 Re3 Be8 Rb2+ Ka1 b3 Nb1 Bg1 Nc3 Bh2 Ne4 Ra2+ Kb1 Ba6 Bb7 Na7 Bc6 Bc8 Bb7 Nb5 Nd2+
rn1r1Q2/2bp3B/2pQq2p/B2p1QQ1/2kPb1QR/2P5/1N1n1KpR/n1Q1N3 b - - 0 1 illegal: No proof kernel
R2Bn1kN/1pPB1q1P/3RB1q1/1K1p1r2/2R1Br2/1QN2R2/1Nn3r1/7q b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 h5 g4 f4 gxh5 f3 a3 e6 b5 Be7 b6 axb6 exf3 Qc7 f4 Qd8 f5 Bg5 Ke2 Bd2 c6 d6 c7 Bb4 axb4 Bd7 b5 Bc6 Ke1 Bf3 c8B Ra6 c4 Kf8 c5 Qe8 c6 Qd8 c7 Bc6 bxc6 Ra8 Ra7 Kf7 Ra1 Ke8 Kd2 Kf7 Kd3 g5 Kc4 g4 h4 g3 f4 d5+ Kb5 g2 h6 e5 h7 e4 h5 e3 h6 e2 f6 e1R f5 Re8 Nd2 Ra6 Nc4 Ra3 Rh4 Na6 Bd7 Re4 c8B Qe7 c7 Qd8 Ne2 g1Q Bg5 Rf3 Qb3 Ref4 Nb2 Qe8 Nc3 Nb4 Bg2 Nc2 Ra6 Qh1 Rg4 Rg3 Be4 Rg2 Bh4 Kf8 f7 Nf6 Bg5 Rg8 h8N Qe6 Bh4 Ne8 Bd8 Rg5 Ra8 Rh5 Rg6 Qe7 Rd6 Qe6 Ra4 Qg6 Rc4 Qf1 Ka4 b5+ Ka5 b4 Kb5 Qh1 Be6 Rhg5 Bcd7 Qhh5 Qa2 b3 Qa3 Nf6 Nba4 b2 Qb3 b1Q Nb2 Rf3 Na2 Qg8 Nc3 Ne8 Bf6 R5g4 Bg5 Nf6 Bh4 Qhg6 Bg5 Ke7 f8R Qh1 Ra8 Q8e8 Bh4 Kf8 Bg5 Ng8 Bd8 Nf6 Rdc6 Qe7 Rd6 Ne8 f6 Rf1 B6f5 Kg8 f7+ Kh7 f8R Rg5 Rff6 Kg8 Bfe6+ Qef7 Rf4 Rf5 Rf2 Re1 Rf4 Re3 Rf1 Ref3 Rf2 R3f4 Rf1 Ne3 Rf3 Nc2 h7+
R3N3/Prp2r1b/4P3/r2B4/3pbR1r/NB4BQ/2N1kNR1/1Kb2b1R b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 axb4 c4 b3 Nf3 b4 Ng1 Qe7 Kf2 Qc5+ Ke1 Qb5 cxb5 Ke7 a4 Ra6 e4 Rd6 d4 Ra6 a5 Nh6 b6 Ra7 e6 Kd6 e5+ Kd5 a6 Kc6 e7 Ng4 e6 Ne5 dxe5 Ra8 Kf2 Kc5 Ke2 Nc6 Ke1 Na7 bxa7 Kc6 Kd2 Kd5 e8N Kd4 h4 d5 h6 f5 h5 g5 h7 b2 Kc2+ Ke4 h6 f4 e7 f3 e6 d4 Qd3+ Ke5 Nd6 g4 e8N f2 Nf3+ Kd5 Ne4 g3 Bf4 g2 Bg3 g1R Na3 b1R Ne1 Bb7 Ra2 Rg2 Be2 f1B Nf2 Bc5 Bd1 b3+ Kd2 b2 Kc2 Rf8 h8R Rf7 h7 Rh2 Rf8 Rh4 h8R Be7 Qe3 Bg5 Qc3 Bc1 Qd3 Rb8 a8B Ra1 a7 Bc6 Rhg8 Rb7 Rg4 Kc5 Rf4 Be4 Rh8 Rb4 Bd5 Rb7 Bf3 Bh7 Bb3 Kb4 Bfd5 b1B+ Kd1 Kc5 Qf5 Be4 Qh3 Kb4 Nec2+ Kc3 Ng7 Rb5 Ra8 Ra5 Ne8 Rb1 Ba4 Rb4 Bab3 Rb7 Rg4 Bh6 Rf4 Bg5 Kc1 Bh6 Kb1 Kd2 Ra1 Ke2 Rh2 Bf8 Rg2 Bb4 Kb2 Bd2 Rd1 Be3 Kb1 Bc1 Rh2 Bfg2 Rdh1 Bf1 Rg2
rnB5/2n2q1R/Pb5N/k1R5/3KRr2/NQr1RP1B/3b2B1/2NBn1bb b - - 0 1 legal: proof: c4 f5 b4 g5 Qb3 d5 cxd5 a5 bxa5 f4 Qc2 f3 exf3 g4 Qd1 g3 fxg3 h6 g4 Ra7 g5 Bh3 g6 Ra8 g7 Bc8 g4 Nd7 g5 Kf7 g6+ Ke8 Bb2 Nb8 Bf6 Qd6 Bh4 Qd8 Bg5 hxg5 Ke2 Kd7 Ke3 b5 d4 e5 h4 c5 a4 Kc7 h5 b4 d6+ Kc6 d7 e4 a6 Kb6 a5+ Kc7 a7 c4 a6 Kb6 h6 g4 d5 c3 d6 c2 h7 c1B+ Kd4 e3 Ra4 b3 Na3 g3 Ne2 b2 Bg2 b1N Rh5 Qc7 d8R Bh3 d7 Ne7 g8B Bd2 g7 Nd5 Nc1 e2 Re8 e1R d8N Re3 Nf7 Rc3 Nh6 Qf7 Re3 Nc7 Rc5 Be7 Rac4 Bd8 Qa4 Qf5 Be6 Rf8 h8R Qf7 Nc2 Na3 g8B Bg5 Rh7 Bd8 Bf1 Bg2 Bh3 Bh1 Bfg2 Qg6 Bd5 Rf4+ Be4 Qf7 Qb3+ Nab5+ Ke5 Ka5 Na3 Be7 Bc2 Bd8 Rc6 Nd4 Bd1 Nc2 Rce4 Ne1 Kd4 Qf5 Bf1 g2 Rc4 g1B Bfg2 Qf7 Rc6 Nd7 Rc4 Rc8 a8B Rb8 Bd5 Ra8 Bde6 Nb8 Bef5 Ne8 Bc8 Bb6+ Ke5 Nc7 Rc6 Rc5+ Kd4 Rc3+ Rc5+
RQ3b2/RK2N1qP/2R5/1P5R/2b3nr/1kBr2NN/r3r1B1/Bnr1B2q b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 e5 h4 g5 d4+ Kd6 h6 c5 h7 c4 f6 b3 f5 b2 f7 c3 f6 c2 h5 g4 h6 g3 Bd2 c1Q Be1 g2 Rh5 Qc3 Nh3 g1R Nd2 b1R Ra7 Rh1 Bg2 Rh2 Nf1 Qe8 Ng3 Qec6 Qg4 Nd7 Qf4 Qb2 Bc3 Ne7 Be1 Rg8 h8B Rd1 h7 Rg4 Bc3 Rd3 Be1 Bg7 f8N Rh4 Ng6 Bf8 f7 Qcc1 Bc3 Qh1 Be1 Bb7 Bg7 Rc8 Bh8 Rc1 Bg7 Nf5 Ne7 Ne3 Bh8 Ng4 Bf6 Bg7 f8R Nb6 Rc8 Na4 Rc7 Bf8 Rc6+ Kd7 d6 Nc3+ Kf5 e4 d5 Nb1 Bfc3 e3 Ke4 e2 Qe5 Ke8 d7+ Kf7 d8R Bc8 d6 Be6 d7 Bc4 Qb8 Qa1 Rcc5 Ke6 Re8 Qb2 d8B Qa1 Bda5 Qb2 Bh8 Qg7 Bac3 Qg5 Bhd4 Qg7 Qb7 Kd6 Rea8 Ke6 Ba1 Kd6 Qb8+ Ke6 Bec3 e1R+ Be3 Re2 Rcc7 Rec2 Bed2 Ra2 Be1 Kd6 Bf3 Rhd2 Bg2 Re2+ Kf5 Rec2 Ke4 Rd5 Rd7+ Kc5 Rd6 Rd2 Bf6 Kb4 Bfc3+ Kb3 Rda6 Rd8 Rd6 Bd3+ Kd5 Re2 Kc6 Bc4 Kb6 Rd7 Rc6 Rd3 Kb7
NNk1q1B1/bn2B2K/1rQb4/3P1nP1/1b3bR1/1B2RR1n/2qR2N1/B4r2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f4 gxf4 g4 Be6 h3 Bf7 g5 Bg6 Nf3 Bh5 Ng1 Bg4 hxg4 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kd7 Kd3 e5 Ke4 h5 b4 a5 d4 c5 b6 f3 f6 h4 Kf5 f2 Kg6 c4 b7 h3 f7 c3 b5 e4 b6 c2 d6 a4 d5 a3 Bb2 c1B Rh2 e3 Nf3 a2 Ne1 e2 Nd2 Ra4 Qc2 Rd4 Ng2 e1B Bc4 f1Q Bb3 Rb4 Nc4 Na6 b8R Qe8 b7 Nh6 Rc8 Rg8+ Kh7 Nc5 g6 Nf5 g5 Qf2 g7 Rb6 Bd4 Be7 f8R Bb4 Rf7 Be3 Rg1 Rf8 g8B Bf4 Ba1 Qe2 Qc3 Qc2 Rc6 Kd8 b8N Nb7 d7 Bed6 Re7 Rf6 Re3 Rf8 Rf1 Rf6 Rff3 Rf8 Rh1 h2 Rd1 h1N Rd2 Nf2 Rc5 Rf6 Ra5 Kc7 d8B+ Kc8 Ra4 Nh3 Be7 Rf8 Bb2 a1B Qf6 Bc7 Qc6 Bfd6 Bbf6 Bd4 Bh8 Rb5 Bhf6 Ba7 Ba1 Rb6 Na3 Bbc5 Rg4 Bb4 Nb5 Bf4 Qg6 Bcd6 Nc7 Rf6 Na8 Re6 Red3 Re1 Rde3 Rf1 Qh6 Bde5 Qc6+ Bc7 Qb5 Bcd6 Qc6+
NR6/BBr2q2/n1qq1R1k/N6B/P3Nb2/rr1RQ3/P3Kb1b/1q1R3N b - - 0 1 legal: proof: g4 a5 f4 e5 c4 exf4 b3 d5 cxd5 a4 bxa4 f3 Bb2 g5 Ba3 f5 Bc1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Ba3 Ne5 Bb2 Nf7 Bc1 Ng5 hxg5 Bc5 Nh3 Ba3 Ng1 Bf8 d4 Kf7 e4 Kg7 g6 h5 d6 b5 d7 c5 e5 c4 e6 h4 e7 g3 e8B g2 d5 h3 d6 c3 f6+ Kh6 f7 b4 g7 h2 Kf2 b3 Be3 b2 Bc5 c2 Qd4 c1B Ba7 Ne7 g8R Nd5 Nh3 Nb4 Qe3 Rb8 Nc3 b1Q Ba6 Rh7 Bb7 Na6 Rd1 h1Q Ne4 g1B+ Kf1 f2 Ke2 f1R Rd3 Be7 f8R Rf3 Nhf2 Bh2 Bh5 Bh4 Rf7 Qdb6 d8N Qg2 d7 Qd6 Nc6 Qgg6 Bc8 Rb3 Nh1 Bf2 d8N Ra3 Rf6 Rc7 Na5 Qc6 Rf5 Qgd6 Bb7 Rb3 Ne6 Rg3 Qc5 Rh3 Rb8 f3+ Kf1 Bcf4+ Qc1 Be1 Qe3 f2 Ke2 Rf3 Nf8 Rh3 Nd7 Ra3 Nb6 Rb3 Na8 Ra3 Qc1 f1Q+ Kd1 Re3 Rf7 Bf2+ Kd2 Qg1 Rf6+ Qg6 Qe1 Rf3+ Ke2 Rg3 Rd4 Rgc3 Rd3 Rcb3 Qd2 Qbc2 Rd1 Qb1 Rf5 Qgf6 Qe3 Qf7 Rf6+
1n2qb2/q1RNRr1P/1NnB1B1q/2K2N2/PBNRB2k/1q1q4/1r2Q1q1/8 b - - 0 1 illegal: No possible last move
4nN2/r3N2R/1bR1Nk1B/3RQN1B/5K2/1n2r3/B1n1P1Pn/rb1b2rB b - - 0 1 illegal: Other
nq2k3/BN2rq2/1rnN1B1P/bb3K2/2Q4R/p2R3R/3R1PBq/1n2NB2 b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 h5 a4 f5 exf5 d5 axb5 d4 g4 hxg4 c3 Na6 cxd4 Nb8 d5 Rh5 Ba3 Rh6 Bc1 Rh8 Ke2 a5 Ke3 g5 Ke4 e5 h4 g3 d4 g2 d6 g4 c6 g3 h5 a4 d7+ Kf7 h6 a3 d5 Bb4 b6 Qh4+ Qg4 Ra4 d8N+ Kf8 d6 Ne7 f6 Ke8 c7 Ba6 c8B Bb5 b7 Qh2 Nd2 Ra6 Ra2 Rb6 Nc4 Nd5 Bb2 Ba5 Nf3 g1N Ne1 g2 Kf5 Nc6 b8B e4 Nb7 e3 Ba7 e2 Bd4 Rg8 Rd2 Rg7 Be5 Qg3 Rh3 Re7 Rh4 Nc7 d7+ Kf7 d8R Nf3 Ba1 g1Q R8d3 Q1h2 Ncd6+ Kf8 f7 Na8 Qc4 Qg7 Rc2 Nd2 Bf6 Nb1 Rcd2 Qh8 Be6 Qg8 Bd5 Qg7 Nc2 e1Q Bdg2 Qe3 Ne1 Qeg3 Nc8 Qb8 Ncd6 Re6 Ba1 Ke7 f8R Qf7+ Bf6+ Kd7 Rg8 Re2 Rgg3 Re7 Ne4+ Ke8 Rgf3 Rd7 Rfh3 Re7 Ned6+
B2R1n2/3P3N/K1Npb2B/1Q1n1r2/2b1RB1k/2P1N2N/4Rr1q/Br1q1n2 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 gxh4 a4 Ba6 axb5 Bb7 c5 Bc8 c6 d6 Ra4 Bg7 Rf4 Kf7 Qc2 Qd7 cxd7 c5 Qd1 Bc3 Ra4 c4 Ra1 Bf6 Qg4 c3 Qf3 c2 Qd1 Bc3 dxc3 Ba6 Qe2 Bb7 Qd1 Bc8 Kd2 Kf6 Kd3 e5 Kc4 h5 f4 a5 g4 e4 b4 a4 g5+ Ke7 f6+ Kf7 b6 Kg6 Kb5 a3 b7 e3 f7 a2 f8N+ Kf5 g6 h3 g7 h2 Nd2 e2 Nh7 Kg4 f5 h4 f6 h3 f7 Nf6 g8R+ Kh4 f8B e1N Nc4 Nd5 Bb2 c1Q Bh6 Ng2 Ne3 Nc6 b8B Nd8 Qa4 Ne6 Ba7 Qd1 Rd8 Rf8 Bd4 Rf2 Be5 Ra7 Bef4 Nf8 Rc1 a1R Rc2 Bb7 Re2 Rb1 Ba1 Ba6+ Ka5 Ra8 b5 Rb8 b6 Bc4 b7 Rc8 Qb5 Rc5 Nc2 Nge3 Bg2 Nf1 b8N Nde3 Bb7 Rf5 Nc6 Nd5 Re4 Nde3 Ne2 Nd5 Rg1 h1Q Ka6 h2 Ne3 Qg2 Ba8 Qg3 Rg2 h1B Ng1 Qh2 Rg7 Bf3 Nh3 Bh5 Rg2 Bf7 Na7 Be6 Nc6 Rf3 Rb2 Rf2 Re2
1R1nNr1n/3R2R1/1b3BN1/2bk2q1/3B1pB1/3r4/rrPB1P1Q/R3rNK1 b - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 dxe5 Be7 a4 Bd6 axb5 Bf8 h4 g5 b6 gxh4 b7 Ke7 c6 Na6 b8B Bb7 cxb7 Ke8 e4 Ke7 g4 Ke6 g5 d5 g6 h5 g7 f5 Be3 f4 Qd3 h3 Qc3 h4 Bc1 d4 Qd2 d3 Qc3 h2 Bd2 h3 Be2 Nc5 Kf1 a5 Ba7 a4 b8B a3 Nf3 a2 Nh4 Nh6 g8R Qg5 Rg7 Nb7 Bd4 Bc5 Ng6 Nf7 Qa5 Nbd8 Bg4+ Qf5 Bd6 Rf8 Be7 Nh8 Bf6 Ra6 Rg1 h1R Rd7 Rb6 Qa3 Rb5 Qc1 Rb2 Qd1 Bb6 Qf3 Bc5 Qg3 Bb6 Qh2 Bc5 Ba5 d2 Bac3 d1R+ Be1 Rd3 Ba5 Be7 Nd2 Kf7 Bb4 Qg5 e6+ Kg8 e5 Bc5 e7 Kf7 Qg3 h2 Kg2 Bb6 Nf1 Bc5 Bd2 Bb6 Be2 Ke6 e8N Bc5 Rb1 a1B Bg4+ Qf5 Rd1 Ra2 Rg7 Kd5 e6 Qg5 e7 Bc3 Ra1 Rb2 Ra7 Ba5 Qh4 Bab6 Rd7+ Kc6 Nd6 Kd5 e8R Ne6 Rb8 Nd8 Ng3 Ra2 Ra1 Re1 Nf1 h1R Qh5 Rhh3 Kg1 Rb3 Qh7 Rhd3 Qh2 Rbb2 Ne8+
KRR5/Qr1pr1R1/2b3R1/1N5q/3r3N/BN1B2P1/P1Bknn1N/3r2bb b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 c5 hxg5 b5 d4 Ra7 dxc5 Ra8 b4 axb4 cxb5 Bg7 Na3 Bh6 Nb1 Bf8 Ke2 Kf7 Ke3 e5 f4 h5 f6 Ke6 f7 Kf5 g6 b3 b6 b2 g7 h4 c6 h3 c7 h2 b7 e4 Kd4 e3 Nf3 e2 Na3 b1B Qa4 e1R Bd3+ Kg4 f5 Re5 f6 Ne7 g8B Na6 b8R Nd5 Bgh7 Ra7 Nb5 Nc3 Ba3 Kf4 Rg1 h1R Nh2 Bb7 c8R Bc5+ Kc4 Ke3 f8N Kd2 f7 Qe7 Ng6 Nb4 f8N Qg5 Nh4 Bc6 Ne6 Ne2 Ned4 Rb7 Qa7 Re7 Bc2 Qh5 Nb3+ Ke3 Bhg6 Nd3 Bh7 Nf2 Bhd3 Bd4 Kb4 Rh6 Ka5 Rd6 Ka6 Rd5 Rg8 Bb6 Rg7 Rd4 Rc1 Rd1 g3 Rd2 Rf1 Rd1 Rc8 Nh1 Rf6 Nf2 Rfg6 Bc5 Bf5 Bb6 Bcd3 Bc2 Rc1 Bb1 Rb8 Bh1 Rcc8 Bc6 Bc4 Bbe4 Bd3 Bh1 Bc2 Bc5 Bfd3 Ne4 Qb6 Rc4 Na1 Kd2 Qa5+ Rb4 Qa4 Bg1 Nb3+ Ke3 Qa5 Nf2 Qa4 Rd4 Qa5 Rb6+ Ka7 Rb7+ Ka8 Bcd5 Na1 Bc6 Qa7 Kd2 Nb3+
4b3/1Nb1QNn1/b1nq1PN1/1RR4p/B2B4/3KBqq1/1R1B1RkP/r5n1 b - - 0 1 legal: proof: e4 e5 d4 b5 a4 c5 axb5 f5 dxe5 fxe4 b4 Qb6 bxc5 Qd8 g4 a5 f4 Qf6 g5 Ra6 f5 Re6 Ba3 Qe7 Bc1 Rf6 gxf6 Qd8 Kd2 Kf7 c4 h5 b6 g5 b7 d5 e6+ Ke8 f7+ Ke7 c6 Kd6 c7 Ke5 e7 Kf4 e8R e3+ Kd3 g4 c5 d4 f6 a4 c6 g3 Ra2 a3 Re5 g2 Qe1 Qe8 Nh3+ Kf3 Rb5 g1N Nf4 e2 Ng6 Qe7 Rab2 a2 Nc3 a1Q Be3 Qa8 Ne4 Nh6 Nc5 Qd6 Bd2 Bd7 c8R Nf5 c7 Nc6 b8B Ng7 Nb7 Be8 Ba7 Be7 f8B Bd8 Be3 Rh7 Qb4 e1Q Bh3 Qf2 Bd7 Kg2 Qe1 Qb8 Qe2 Qg3 Bb4 Rh8 Bd2 Rg8 Qg4 Qf3 Qe4 Rf8 Qe7 Rf7 Kc4 d3 Bad4 Qd6 B2c3+ d2 Kd3 Qf2 Bb4 d1B Bbd2 Qfg3 Nc5 Qa8 Nb7 Ne2 Rf1 Ng1 Bg4 Bb3 Bd1 Be6 Ba4 B6d7 Rb8 Bc8 Rc5 Rf8 Na5 Rf7 R8b5 Ba6 c8N Bc7 Nb7 Nd8 Na5 Qaf3 Nb7 Nc6 Qe4 Qde5 Ncd6 Re7 Nf7 Qd6 Rg5 Re5 Rf5 Rc5 Qe7 Rc1 Rc5 Ra1 Rf2+
2n1R3/1b3q2/B1P2q1p/1Qk2PRr/3NR1q1/4qRN1/2B3NN/BK1b1n1n b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 f4 cxd4 h4 g4 e4 Bh6 e5 Ba6 f6 Bc8 f5 Bg5 hxg5 Qc7 Rh3 Kd8 Rh4 Ra6 f7 Rf6 exf6 Qb6 Kd2 Kc7 Rh1 Kd6 Ke1 Qd8 Kd2 e5 f8N g3 c4 e4 Kc2 a4 b4 e3 f7 e2 c5+ Kd5 g6 e1Q b6 d6 g7 a3 b5 a2 b7 g2 b6 h6 c6 Qd7 Rh4 Qde8 Ba6 Kc5 Qe2 d5 Ng6 Ne7 g8B Nd7 b8R Bb7 f8N Qf7 Nd2 Ne5 Re8 Nc4 Nf4 Nc8 Ngf3 g1Q Nh2 Qg4 Ndf1 Nd2 Ng3 Nf1 Ng2 d3+ Kb2 d4 Ne6+ Kb4 Bg5 d2 Bf6 d3 Nd4 d1B Re3 d2 Rf3 Kc5 Qb5+ Kd6 Rh5 Qe3 Rg5 Rh7 Rc1 Rg7 Rc5 Rg6 Re5 Rg7 Re4 Rg6 Qb3 Kc5 Be5 Qg7 Bgc4 Qf7 Bd3 Rg7 Bc2 Rg8 Rh5 Rg5 Bh8 Be2 Ka1 d1N Bg7 Nf2 Qb5+ Kd6 Kb2 Bd1 Bh8 Ba8 b7 Nh1 b8R Bb7 Rh4 Rh5 Ka1 Qgg5 Rhg4 Qh4 Rg5 Qg4 Qb1 Kc5 Bg7 Na7 Rbe8 Nc8 Kb2 Qeb3+ Kc1 a1Q Bh8 Qac3 Qb2 Qbe6 Kb1 Qe3 Qb5+ Kd6 Nde2 Qeg6 Ba1 Qgf6 Qb3 Kc5 Nd4 Nd6 Qb2 Nc8 Qb5+
1Rr1N3/3KQq1P/3BrR1B/3N2PB/knb4b/1r1p1N2/1R4R1/b2qN1b1 b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 a4 cxd4 axb5 h5 gxh5 g5 e4 g4 exf5 Nc6 Ke2 Ne5 Kd2 Nf7 Ke1 Ng5 fxg5 Qc7 Nc3 Qb6 Nb1 Qd8 Kd2 e5 Kd3 d5 c4 Kd7 h4 a5 b4 g3 b6 Kc6 f6 g2 b7 a4 b8R a3 c5 a2 h6 Bd6 f7 Nf6 f8B Be6 b5+ Kd7 h5 Ne8 b6 Kc6 h7 Kb5 h6 Bh3 b7 Qa5 c6 Qa7 c7 Bd7 c8N Bb4 Nc3+ Ka5 Qe1 Nf6 Rh2 Be8 Nf3 g1B Ba3 Bc5 Nd6 Bf7 Rg2 Bb4 Rd1 a1B Be2 Bg8 Ne8 e4+ Kc2 d3+ Kb3 d4+ Nd5 e3 Kc4 Bd2 Bad6 Ka4 Rb1 Bb4 Rb2 d2 Rc8 d1Q b8R d3 Rc6 Qd7 Bg7 Bd2 Kc5 Qf7 Rcb6 Ra5+ Kc6 Rb5 Bgf8 Rb3 Bg7 Qh5 Kc7 Bf7 Kd8 Rf8 h8N Bg8 h7 Qf7 Ng6 Bc3 Qg3 Be1 Bh6 Bef2 Qe5 Bh4 Bf1 e2 Ngf4 e1R Qe7 Re6 Be2 Ne4 Kd7 Nc3 Ne5 Na2 Bh5 Nb4 Nf3 Nc6 Rge2 Nb4 Ng2 Qg6 Nge1 Qf7 Ng7 Re8 Rg2 Rc8 Ne8 Rg6 Bc7 Qf6 Ne3 Bc4 Nd5 Qf7 Re6 Rf6 Bd6 Rg6 Re4 Rf6 Rf4 Re6 Rf6
1B1R2Rr/q3BP1b/n3p3/1B1NN2P/2Kn1r1q/2N4Q/2n3N1/1rBknR2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 Nh6 c4 Ng8 cxd5 Bb7 Bc4 Ba6 Bf1 Bc8 g3 gxh4 Rh3 h5 Rh2 h3 Rh1 h2 Bh3 h4 Qb3 Bg7 Bf1 h3 Qc2 Bf6 Qd1 Bh4 gxh4 Kf8 Ra6 Kf7 Ra1 Ke8 Ke2 Kf7 Kd3 Kf6 f4 a5 b4 c5 h5 e6 d6 a4 d7 a3 b6 a2 b7 Qb6 d8N Qc7 b5 Rh6 b6 Qh7 Qf3 Ra7 Nf7 Ne7 Ne5 Nec6 Ne2 Ra4 Rg1 h1R Rg8 h2 Nbc3 Na6 b8N Nd4 Qh3 Qa7 b7 Rh8 Nbc6 Rg1 b8B h1Q Ne7 Bb7 Rb1 Rb4 Ra1 Rb1 Kc4 Be4 Rg3 Qh2 Rg8 Rg4 d3 Nf3 d4 Ne1 d5 Qg3 d6 Qh4 d7 Bc2 Na4 Be4 Kc3 c4 d8R Bd3 Nb6 Be4 N7g6 Bc2 Kd4 c3 Kc4 Be4 Nf8 c2 Nfg6 Qb7 Nc3 Qa7 Bb2 c1N Be2 Qf2 Nh4 Nb3 Ng2 Qh4 Bc1 Bc2 Rge8 Nd4 Nbd5+ Kg7 f6+ Kh6 f5+ Rf4 f7 Kg5 f6 Bh7 Qh2 Kf5 f8B Kg5 f7 Kf5 Nf3 Kg4 Qh1 Kg3 Be7 Kf2 Rf8 Rb5 Rb1 a1N Rg8 Nac2 Qh3 Rb6 Ra1 Rb1 Ne5 Ncb4 Bd1 Kf1 Ba4 Nbc2 Nd1 Ke2 Bb5 Bg6 Ra3 Be4 Rf3 Bh7 Rf1 Na1 Nf2 Nac2 Ne4 Kd1 Nec3+
1bRq3r/1pk1q1NB/5NQ1/2BR2q1/K3Pnr1/b1Pbb3/1BR3RN/3N4 b - - 0 1 illegal: No possible last move, all moves rejected
1K6/3qP1qq/q1RB3p/bBNkB2R/3R1nPN/1q1bQB1q/1R5N/3n4 b - - 0 1 legal: proof: d4 a5 a4 b5 axb5 c5 f4 cxd4 g4 f5 Ra2 g5 Ra4 e5 Ra1 h6 fxe5 f4 h3 Ra6 Qd3 Rf6 Qd2 Rf5 gxf5 g4 Qd3 g3 Qd1 Rh7 Rh2 Rg7 Rh1 Rg4 hxg4 Qc7 Bh3 Qb6 Bf1 Qd8 Kd2 Kf7 Kd3 d5 c4 a4 e4 a3 b4 a2 b6 f3 e6+ Kf6 b5 Ke5 f6 f2 c5 g2 e7 Nc6 e8R+ Qe7 b7 Nd8 b8R Nb7 c6 Ke6 c7 Bd7 c8B Na5 f7 Nf6 e5 Nh5 b6 Ng3 b7 Ne4 Nc3 Ng5 Ba3 Bg7 Bd6 Nh3 Ne4 Nc4 Qc1 Ne3 Nf3 g1Q Nh2 Nd1 Qe3 Qg3 Rc1 a1Q Rc6 Bh8 Be2 Bf6 Bf3 f1Q+ Be2 Qf5 Bf3 Qh7 f8N+ Kf7 Rd8 Bf5 Re8 Bh8 Ng6 Qa6+ Rc4 Qg5 Nh4 Qgg7 Bd7 Bg6 Bb5 Nf4+ Kc2 d3+ Kb3 d2 Kb4 d4 Nc5 d3 e6+ Kf6 e7 Bf5 Re4 Qh3 Rbc8 Bg6 b8B Bf5 Be5+ Kf7 Bbd6 Bg6 Nb3 Ke6 Nc5+ Kd5 Rc7 Nc3 Rc6 d1Q Rec8 d2 Rb8 Qc2 Rb7 d1Q Rbb6 Qdd3 Rb7 Nd1 Rb8 Qc8 Ka5 Qd7 Ka6 Qcb3 Rb7 Qdc4 Ka7 Qca4+ Kb8 Qa6 Rbb6 Qf7 Ba1 Bc3 Bb2 Ba5 Bbe5 Bf5 Bd3 Qc2 Rb2 Qfg7 Bb5 Qb3 Nf1 Qg2 Rc4+ Be4 Ng6 Bd8 Rh5 Qh1 Nh4 Qh3 Nh2 Ba5 Bh1 Bf3 Re4 Be2 Bf3 Bd3 Rd4#
1q1B2q1/1q3RR1/2k2P2/3p4/PR2r1Nr/p3bBbQ/1B3n1B/K2N1RbN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Bb7 Qd2 Ba6 Qd1 Bc8 Bg5 a5 Bh6 Na6 Bc1 Nc5 Bg5 Ba6 Bc1 b4 b3 Bb5 axb5 a4 Qg4 a3 Qd1 Na4 bxa4 Qb8 Qd3 Qc7 Qd1 Qd8 Kd2 g5 f4 d5 c4 Kd7 Kc2 e5 h4 e4 c5 g4 b6 g3 h6 g2 h5 e3 h7 e2 c6+ Kd6 h6 e1B b7 Ne7 b8B+ Kc5 c7 Bc3 c8R+ Nc6 f6 Qc7 f5 Ra5 f7 Ra8 Qh5 Qd8 Be2 Qh4 Nh3 g1B Bg5 Ra7 Bd8 Bh2 Rc7 Qf4 Nf2 Bd2 Qh3 Bd6 f8R Be3 Rg7 Bg1 Nc3 d3+ Kb1 d2 Bf3 b3 Ncd1 b2 Rff7 Nb4 Ra2 Re8 h8N Kc6 h7 Nd3 Ng6 Re4 h8B Qg5 Ra1 Bg3 Ka2 Rb7 Rb1 Rbb4 Bf4 Qe7 Bb8 Qb7 Ne5+ Kc5 Neg4 Kc6 Nh2 Rh4 Nhg4 Re4 Bbc7 B1h2 Rf1 Bg1 Nh1 Nf2 Rg8 Qb8 Bd4 Qb7 f6 Qb8 Rgg7 Qb7 Nc3 d1Q Bd6 Qe1 Nd1 Qeb4 Bb8 Qf8 Bc3 Bd6 Be5 Qg8 Bh2 Bg3 Be5 Qb8 Rc1+ Bc5 Rc4 Qb7 Rb4 Be3 Kb3 b1Q+ Bb2 Qd3+ Ka2 Qdb5 Ka1 Qb8 Re7 Q5b7 Ref7
4BN2/N2BP3/1NRN1PKR/1pBQb3/n5Rb/nqn4r/1n5p/1k2b1R1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 c4 g5 hxg5 d5 cxd5 f4 f3 b5 Qb3 e5 Qc2 Bf5 exf5 e4 Qb3 e3 Qd1 Ra6 Nh3 Re6 Ng1 Re4 fxe4 Qf6 Qb3 Qd6 Qd1 Qd8 Ke2 Kf7 Kd3 c5 g4 h5 a4 e2 d6 e1B f6 Kg6 e5 b3 Ke4 h4 d4 h3 d7 b2 e6 c4 d5 c3 a5 c2 e7 f3 a6 f2 a7 Bh6 a8N Qb6 d8R Qb7 Nc3 b1N Rc8 Qb6 d6 Qa7 d7 Nc6 d8N Qa6 Ba3 c1B Bc5 Bf4 Nb6 Nb4 Qd5 Na3 Rc6 Na2 Nf3 Be5 Ne6 Qa4+ Nfd4 Qb3 Bc4 f1N Rb1 Kf7 Kf5 Nd2 Ne4 Nc3 Rc1 Bh4 Rcg1 Na4 Rh2 Ndb1 g6+ Ke8 g5 Nbc3 g7 Kf7 Rhh1 Rh7 Rg4 h2 Rhg1 Beg3 Bf1 Be1 Bh3 Rh8 Ke5 Kg6 Nd6 Kh5 g6 Bf4+ Kf5 Be5 Nf8 Nh6+ Ke6 Nf5 Kf7 Rh6 g8B Ne3 g7 Nec4 Bh7 Ncb2 g8R Nab1 Bf5 Na3 Bd7 Rh8 Be8 Rh6 Rf4 Rh8 R8g3 Rh6 Bg4+ Kg5 Rff3 Rh8 Re3 Kf4 Kg6 Rh5 Bgd7 Rh7 Rg5 Rh5 Reg3 Rh8 R3g4+ Ke3 Rh5 Kd2 Rh6 Kc1 Ndc8 Rh7 Na7 Kb1 Nf5 Rh8 Nd6 Rh7 Kf5 Bhg3 Rhg6 Rh3 Rh6 Bh4 Kg6
2nN4/BRP2b1q/3n2nB/1r1n3K/1p2p1N1/k2P1BqR/B1RQ3n/6RN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 Rh6 Bd3 Rh7 Bf1 Rh8 Bd3 d5 Bg5 b5 Bf6 c4 Bh4 e6 Bg5 Ra3 Ke2 Bc5 dxc5 d4 Bc1 Rc3 Be4 Rh3 Bg2 Rg3 Bf1 d3+ Ke1 d2+ Ke2 Rd3 cxd3 Kf7 Ke3 Ke7 Ke2 Ke8 Kf3 Kd7 Kg4 Kc6 a4 g5 h4 e5 f4 c3 a5 e4 h6 c2 h5 b3 h7 b2 a6 b4 a7 Kb5 a8B Qc7 c6 Qe7 h6 Qf8 c7 Qd6 Kh5 g4 f6 g3 f7 g2 f8B Qe5+ f5 Nd7 Ne2 g1N Nbc3+ Kb6 Ng3 b1Q Rh2 Qa2 Bd5 Ka5 Bg2 Nf3 Bc5 Nb6 Nh1 Nc4 Ba7 Qg3 f6 Nd6 f7 Ne7 f8R Be6 Rb8 Nec8 Rb7 Rf8 Qe2 d1N h8N Ne3 Nd1 Ka4 h7 Rd8 Bd2 c1N Ndf2 Ka3 Ng4 Rd7 Bc4 Nd5 Bh6 Rg7 Qe3 Ne2 Qd2 Rd7 Rh3 Nh2 Bf3 Re7 Rg1 Bf7+ Ng6 Qa1 h8R Qg7 Ba2 Qh7 Rg8 Re8 Rc1 Rf8 Rc2 Rd8 Kg5 Rd7 Nf8 Nef4 Ne6 Ng6 Kh5 Re7 Nd8 Re6 Re8 Rf6 Re5 Re6 Rg5 Re5 Qd1 Ndb6 Qe2 Rb5 Qd2 Nd5 Ne5 Qf4 Rg1 Qg3 Ng4
5N2/K2B1R1q/1QpP4/2R5/1rb1rNpn/1RBk1B1B/Nr2qP2/2Rr2q1 b - - 0 1 legal: proof: d4 b5 h4 e5 g4 d5 a4 g5 axb5 f5 c3 Bh6 Nf3 fxg4 Ng1 g3 Qa4 g4 Qd1 Bg5 hxg5 Nc6 dxe5 d4 Bd2 d3 Bc1 Nd4 cxd4 Bf5 Rh3 Bd7 Rh1 Bc8 Kd2 Ke7 Ke3 Ke6 b4 Kd5 e6 Kc4 d5 a5 g6 h5 b6 a4 b5 c6 d6 g2 e7 h4 e8B d2 b7 a3 b8N h3 g7 a2 b6 h2 b7 Nf6 g8B+ Be6 Nd7 Ra4 b8R Nh7 Nh3 g1R Nc3 Qf6 Nf4 Qf5 Bb2 Qa5 Qb1 d1Q Bg2 Qb3 Bh3 Rg2 Rb6 Qg5 Rc1 h1Q Rc2 Qgb5 Bgf7 Kb4 Kd4 Qe1 e4 Ng5 e5 Rh5 Nf8 Rg3 Bd7 Re3 Rb8 Bd5 e6 Qg1 e7 Qa3 e8R Bb3 Ra8 Qe2 Re7 Bd5 Ra5 Be6 Rd2 Bc4 Bd5 Qb3 Rg7 Qc2 Rf7 Qh7 Rd3 Kb3 Kc5 Nf3 Kb6 Nh4 Bh1 Re4 Bf3 Rb5+ Ka7 Rb6 Qc1 Rb5 Qe3 Kc2 Qb6 Rb3 Re3 Rab4 Rc5 Kd2 Rf1 a1R+ Na2 Rb1 Bd4 R3b2 Rb3 Kc2 Bc3 Rc1 N4g6 Kd3 Re1 Rcc2 Rb1 Rd2 Rc1 Rd1 Nf4+
kn4r1/nR2n2B/1KBPnBQR/NNR3n1/r4p2/2r2b2/1Pp1NB1R/8 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 h3 f5 Ra3 g5 Ra4 f4 Ra1 Qf6 h4 Qf5 gxf5 g4 Nc3 Bh6 Nb1 Bg5 hxg5 Kf7 Ra4 Ke7 Ra1 Ke8 e4 Kd8 d4 c5 Kd2 Kc7 Kd3 Kb7 Kc4 a5 b6 h5 Kb5 c4 e5 a4 f6 h4 e6 h3 g6 c3 g7 a3 d6 h2 f7 c2 f8R g3 d5 g2 e7 f2 e8R a2 d7 Rh3 d8B Rh6 d6 Ra7 Ne2 g1R Re5 Ra4 Rf6 Ne7 g8B Rh3 Rc5 Bg4 Nbc3 Ka8 Bg2+ Bf3 Qd3 f1N Be3 Nec6 Rh6 Ng3 Bf6 Ne4 Bh7 Ng5 Qg6 Rg3 Re1 a1N Bf2 Nb3 b7+ Ka7 Re5+ Nbd4+ Kc5 Nde6+ Kb5+ Rd4 Rc5 Ra4 Ra1 Rd1 Ra3 Rd3 Rb3 Re3 Nb1 Rc3 Na3 Nd7 b8N Ka8 Na6 Ndb8 Kb6 Na7 Nb5 Rg4 Nb4 Rg3 Nc6 Rg4 Rb1 h1N Na5 Ng3 Rbh1 Nf5 R1h2 Ne7 Rc7 Rg3 Rb7 Rc8 Rc3 Rg8 Rc8 Bc6 Bd5 Rc3 Bh1 Bf3 Rc5 Bh5 Bd5 Bf3 Bc6
1n5n/1K1Q4/pN3B2/kn2qn2/NpNn3R/1nB3P1/P1r1N1RR/bB3B2 b - - 0 1 legal: proof: f4 f5 g4 d5 c4 e5 cxd5 exf4 b4 c5 bxc5 f3 Ba3 f4 Bb2 Qd6 Bc1 Qd8 Nh3 g5 Qa4+ b5 Kd1 f2 Qa5 a6 Ng1 Bf5 gxf5 g4 Kc2 g3 Qa4 g2 Qb3 Ra7 Qa4 Rg7 Qb3 Rg3 hxg3 Qd7 Kc3 Qe7 Qd1 Qf6+ Kc2 Qd8 Kd3 Kd7 Kd4 Kc7 e4 h5 Bc4 f1N d6+ Kc6 d7 f3 e5 b4 f6 h4 e6 f2 e7 h3 e8B h2 f7 Rh7 Nc3 Kc7 Kd5 Nh6 d4 Kb7 c6+ Kb6 c7 Bd6 c8N+ Ka5 f8N Bf4 Nd6 Qb6 d8R Nd7 Na4 Nb8 Bd2 Qc7 Bg6 Nf7 Nd7 Be5 Ndb6 Nh8 Rc1 Qg7 Rc2 Ne3+ Kc5 f1N d5 Ba1 Bc3 Nd2 Bf1 Qe5 Be4 Nf7 Rh8 Nf5 Rb2 Rh4 Bb1 Rh5 Rh7 Nh8 Rh6 Rh4 Rh7 Re4 Rh4 Re2 Rc2 Nd7+ Kc6 Nb3 Kb7 Nb8 Nh3 g1N Nf4 Nf3 Ndc4+ Kb5 d6 Rf2 Na3+ Ka5 d7 Rg2 d8B Rf2 Rg1 h1N Be1 Rg2 Bf6 Nf2 Qd7 Ne4 Bc3 Nf3d4 Rgh1 Rd2 R1h2 Ned6+ Ka7 Rd1 Rcg2 N6b5+ Kb7 Rd2 Ne2 Rc2 Nac4#
2NBRK2/RN5q/2N1pn1B/Q1rR1PP1/4br1n/np2r1p1/7R/B2k1N2 b - - 0 1 legal: proof: c4 a5 g4 h5 f4 f5 b4 g5 bxa5 d5 cxd5 Bg7 e3 Be5 Be2 Bc3 fxg5 f4 g6 Be5 g5 Bd6 Bg4 hxg4 Ke2 f3+ Ke1 Bf4 exf4 Rh7 Ne2 Rh4 Ng1 Rh8 Kf2 Kd7 Kg3 Kd6 a4 Kc5 h4 Kd4 d6 Kd3 a6 c5 f5 b5 Kf4 g3 Ke5 f2 d7 f1N Ke6 b4 Kf7 c4 a7 b3 g7 c3 a5 c2 h5 e6 h6 Qb6 d8B Ba6 h7 Qb7+ Kf8 Ne3 Bb2 c1R Nf3 Nc4 Rh2 Bb5 a6 Nf6+ g8N Nb6 Ne5+ Ke4 d4 Ke3 d5 Rc4 d6 Rb4 d7 Ne4 Nc6 Nc4 Qd2+ Kf3 Bg7 Nf6 Ra5 Na3 Bh6 Bd3 Rd5 Rf4 Qa5 Be4 Nd2+ Ke3 Nf1+ Kf3 Ne7 Nc6 Nc8 Rb8 a8R Ne5 a7 Ng6+ Kg7 Qc7 Nge7 Nh4 Nc6 Rb4 Rb8 Rc4 a8R Rc3 Ra7 Re3 Kf7 Rg8 h8B Rg7+ Kf8 Qb7 Bb6 Rh7 d8N Rc7 N6e7 Rc4 Nec6 Qh7 Nb7 Rc2 Bd8 Rc5 Rh3 Ke2 Rba8 Ng4 Ba1 Nf6 Rh2+ Rf2 Bc7 Bd3 N8e7 Kd1 Re8 Rff3 Bd8 Rf4 Bd4 Bc2 Nc8 Be4 Ba1+
q3b1NQ/1k1B2R1/P1r1rr1B/2p2R2/2R1pbq1/BNN1B1P1/3p4/1n3NK1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 a5 b4 axb4 hxg5 c5 c4 b5 cxb5 Ra3 d4 Ra5 d5 Nc6 dxc6 Ra8 a4 d5 f4 e5 Kf2 h5 c7 Kd7 a5 h4 g6 d4 g7 d3 b6 Kc6 g3 d2 f6 b3 f5 b2 f7 e4 b7 h3 b8N+ Kb7 f6 h2 Bb5 Qd3 Ra4 Rh3 Nf3 Ka7 Nc6+ Kb7 Rc4 Rh6 Rf1 h1R Nc3 b1Q Ncd4 Rh7 Nb3 R1h2+ Kg1 Qd5 Ba3 Ne7 g8N Bh6 f8B Rf2 f7 Bf4 Bd7 Ra6 Bh6 Re6 f8B Qc2 Qb1 Qd1 Nh2 Qg4 Qb2 Rf7 Bg5 Rff6 Bfh6 Qc6 Qa1 Nd5 Qb2 Rf3 Rf2 Qa6 Nf1 Qa8 Qa1 Rc6 Qb2 Rfe6 Qa1 Bd6 Be3 Rff6 Rf5 Bf4 Qb2 Ka7 Qa1 Ba6 c8R Kb7 Re8 Bb5 Re7 Ba4 Rg7 Bb5 Nd1 Nc3 Qb2 Nb1 Qe5 Rf7 Nc3 Rf8 Re7 Rf7 Qh8 Rff6 Rg7 Rb6 Be8+ Bd7 Bh5 Rbc6 Bf7 Re7 Be6 Be8 Bd7 Ree6 a6+
rn1nB2b/2qP2N1/1P4B1/1N2Qqp1/3pp2R/2Rb2Rn/N2B1N2/2K3Bk b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 d4 a5 e4 c5 exf5 h5 g4 hxg4 dxc5 d4 Qa4 Ra7 Qc2 Rd7 Qd1 Rd5 cxd5 Be6 Ra3 Bd7 Ra1 Bc8 Kd2 Kf7 b4 Kf6 f4 g5 h4 e5 c6 g3 b6 a4 b5 g2 d6 a3 c7 a2 h5 Qe8 h6 Qd7 h7 Ba6 c8B Qe7 b7 Bg7 b6 Be2 Nh3 g1Q Nc3 Qf2 Qe1 Nd7 b8B Qf3 Nf2 Nc5 Rg1 Nh6 Bd7 Ng4 Rg3 Bd3 Be8 Na6 d7 Bc2 Bd3 Rg8 h8R Ne3 Rh4 Nd1 Rb1 a1N Rb3 Qe4 Na2 Qd8 Rc3 Bh8 Qe3 Qc7 Qe2 Ke7 f6+ Ke6 f7 Kd5 f8N Qf5 Ne6 Rf8 Ng7 Nb3+ Ke1 Bb1 Bd2 Nbc5 Bc2 Ne6 Qe3 Qf6 Bcg6 Nd8 f5 Bd3 Qe2 Qe6 f6 Qf5 f7 Rg8 f8N e4 Nfe6 Ke5 Nc5 Rf8 Nb7 Rg8 Nd6 Rf8 Nh1 Nf2 Nb5 Nh3 Kd1 Rg8 Kc1 Rf8 Ba7 Nb8 Qh2 Rg8 Be3 Rf8 Bg1 Rg8 Nf2 Rf8 Ng4+ Kf4 Nf2+ Qg4 Rg2+ Kf3 Qe5 Qf5 Rgg4 Na6 Bb8 Rg8 Rf4+ Kg2 Rf3 Rf8 Ng4 Kh1 Rg3 Qc5 Bd6 Qc7 Bb4 Nb8 Rc4 Rf6 Bd2 Rc6 Rc3 Rc4 Qd5 Ra4 Qe5 Ra8 Nf2+
1BkbN2R/K1p1q1RR/p1NP1r1R/4q2p/2n1P2N/3B3b/NQ2b3/5qB1 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 Na3 g5 Nb1 Nc6 h3 Nce7 h4 Nf5 gxf5 g4 Qc2 Rb8 Qd1 Rb6 Nh3 Rg6 Ng1 Rg5 hxg5 Qf6 Nh3 Qe7 Ng1 Qd8 Kf2 Kd7 b4 h6 d4 Nf6 e4 Bg7 g6 Qe7 b6 Qf8 b5 Qc5 d6 Bf8 b7 Qa7 b8B Qb7 d5 Rh7 g7 Be7 g8R Nh5 f6 Qc6 f7 Rh8 f8R Qc5+ Qd4 Bd8 b6 Rh7 b7 Be7 Bd3 Ng7 Nc3 Rh8 Na2 Qa7 Be3 Rh7 Qb2 Ne8 Rg7 Qd4 Rh8 Qe5 Rh3 Kd8 d7 Bf6 Rc1 Bg5 Rc6 g3+ Ke1 f2+ Ke2 g2 Nf3 g1Q Nh4 f1Q+ Kd2 Qe6 Kc3 f3 Kd4 f2 Kc5 Qe7+ Rd6 Qh2 Kc6 Qhe5 Rdg6 Qa1 Bc5 f1B Bg1 Be2 Rf6 Qf1 Rh1 Qf7 Rfg6 Ke7 d8N Nd6 Rf6 Nc4 Rd6 Bh3 Ne6 Kf6 Rd7 Qe7 d6 Na3 Rgg8 Kf7 Ng7 Nc4 Ne8 Ke6 Rh2 Rf7 Rg7 Rf6 Rgh7 Qf8 Rdg7 Qe7 Bba7 Qf2 b8N Qg2 Kb7 Qf1 Nc6 Kd7 Bb8 h5 Ka7 Kc8 Rg2 Na5 Rh6 Nc4 Rgh7 Rf4 Bc5 Qf7 Qd2 Bd8 Qb2 Rf6 Rgg7 Qfe7 Bg1
4B2k/1p6/bP2NpQ1/4pr2/6NK/BpR2rPn/b1q3RN/1rBRB1R1 b - - 0 1 legal: proof: h4 a5 c4 d5 cxd5 g5 hxg5 Be6 b4 Nh6 e3 Bh3 b5 Bc8 Qa4 Ng8 Qb4 axb4 f4 e5 d4 Bd6 f5 Bc5 d6 Na6 d5 Bd4 exd4 Nc5 Be3 Kf8 Bc1 Ne6 fxe6 Ke8 Kf2 Kf8 Kg3 Kg7 a4 c5 b6 h5 e7 b3 e8Q c4 g6 c3 d7 c2 a5 Ra6 d6 Qc7 d8N Ra7 d7 Ra6 d5 Rh6 d6 Qb8 Nf3 Qa7 Bb5 Qb8 Nh2 Kh8 Ng4 Qa8 Nd2 h4+ Kh3 Ra7 a6 Rh5 Nf3 Rf5 Nfh2 f6 Ne6 Qb8 d8B Bd7 Rg1 Qc8 Be7 Bc6 Qf7 Nh6 d7 Be4 d8B Bd3 Ba4 Ra8 a7 Ba6 g3 Qc7 Bc5 Rc8 Bde7 Rd8 Bc6 Rd3 Be8 Rdf3 a8R Qc6 Bb4 Qc3 Be3 c1R Ba5 Rd1 Ba3 Rb1 Bec1 Qc5 Be1 Qc2 Qd7 Nf7 Qd3 Nd6 Ra2 Ne4 Rc8 Nf2+ Kg2 Kg8 g7 Kh7 g8R Nh3+ Qd2 Nf2 Rc3 Nh3 Rg7+ Kh8 Rd7 Ng5 Nf1 h3+ Kh2 Qd1 Qd3 Qc2+ Kh1 h2 Rb2 Qd1 Kg2 h1B+ Kh2 Nh3 Rbg2 Qc2 Rd6 R5f4 Qg6 Rf5 Rd1 R3f4 Re2 Be4 Reg2 Rf3 Bcb2 Rc1 Bb5 Qf2 Bd6 Nf4 Bda3 Bb1 Bd7 Ba2 Be8 Rb1 Bc1 Ne2 Kh3 Nf4+ Kh4 Nh3 Nfh2 Qd2 Rc7 Qc2 Rc3
1RbB2R1/1p3P2/Bk2N3/2NP1N2/8/pBNppBnr/r1R3b1/nQK3b1 b - - 0 1 illegal: No proof kernel
R4NN1/p2b2b1/1r3q2/1p2qP2/N2QPR2/1pp1rNBK/k1B1r3/B1R1R3 b - - 0 1 illegal: Other
1bqR1bB1/2k1n2K/qR4N1/1n1r2PR/2R1P1Bb/2B5/b2n2N1/1QBb1N1r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 h5 g4 a4 b4 c4 e4 a3 d4 h4 g6 h3 d6 f6 g7 h2 Kg6 c3 d5 a2 b6 c2 b5 f5 b7 f3 b6 f4 Bh3 f2 Nf3 f1Q Ne1 f3 Nd2 f2 Ng2 Qa6 Nf1 Nc6 b8B Na7 b7 Nb5 Rb1 a1B Rb4 Ra7 Rc4 Be5 Bc7 Bf6 b8R Bh4 Ba5 Rh5 Rb6 Ne7+ Kf7 Rc7 g8B Rc5 Bc3 Bb7 Qd3 Qc8 g5+ Kd8 d7 Kc7 d8N Bc6 Ng3 f1N Bg4 Nd2 Nf1 Be8+ Kf6 Bf7 Nc6 Rh7 Ne5 Rh8 Ba3 c1B Ng6 Bb2 Qb1 Ba1 Rg1 h1B Bc1 Rh7 N2f4 Bg2 Rh1 Bf3 Ng2 Bd1 d6+ Kd8 d7 Rd5 Rd4 Kc7 d8R Bb2 Rh2 Ba3 Ra4 Bd6 Rb4 Re5 Rh1 Ba2 Ra4 Rd5 Rd4 Bhg3 Rh5 Bh4 Rc4+ Rc5 Ba5 Be1 Rb8+ Kc6 Rh2 Bf4 Rb7 Bb8 Rb6+ Kc7 Bc3 Rh8 Rh3 Rh6 Re3 Rh2 Rh3 Rh1 Rh5 Bh4 N6f4 Nc6 Kg6 Re5 Kh7 Rd5 Rd4 Ne7 Ng6 Nd6 Ra4 Nb5 Rc4+
r2B2n1/b3Pb1q/1B4n1/KRRRrBk1/1rP1B3/1bR5/1q1q3N/1NQN3b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 h4 d5 b4 f5 c4 g5 e4 a5 b6 g4 b5 f4 e6 Kf6 e5+ Kf5 h6 f3 b7 g3 h7 a4 h5 d3 Kc3 f2 e7 g2 Kb4 d4 h6 d2 b6 a3 e6 a2 Nf3 g1R Bd3+ Kg4 Bf5+ Kf4 Rh5 f1Q Nh2 Bg7 e8B d3 e7 Ra3 Beg6 Nd7 b8R Ne5 b7 Ra5 Bb2 Qd5 Bd4 Be6 Qc1 Bf7 Bb6 Qh3 Rd8 Ra8 b8B Re1 B8c7 Re3 Rb8 d1B Bd8 d2 Be4 Bg4 Bgf5 d1B Rc8 Bb3 Rc5 Rb8 Ka5 Ng6 Rg5 Bf3 Rb5 Nf6 Rh5 Rf8 h8N Bh1 h7 Ng8 Rg5 Bd4 Rg3 Be8 Nf7 Qd7 h8R Qh7 Nd6 Bf7 Rf3+ Kg5 Rd5 Re8 Nb5 Qd6 N5c3 Rb7 Bc5 Rb4 Nd1 Qf4 Rh3 Re1 Rd3 Qd2 Bcb6 Re3 Rc3 Re2 Bbc7 Ba7 Bb6 Re1 Bg2 Re5 Bge4 Qg7 Rhh3 Qh7 Rc5 Rf8 Rhd3 Re8 Rdd5 Rf8 Na3 Re8 Rb1 a1Q Bdc7 Ra8 Bd8 Bc2 Rbb3 Qb2 Nb1 Qh8 Rcd3 Qh7 Rbc3 Ba4 Rb5 Bc2 Rdc5 Bb3 Rdd5
Nb1K2RB/1q1Pn1q1/R1N5/BBbQn3/b2n4/2rrqN2/3P4/kB1R2Rb b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 h5 b4 a5 b6 h3 b5 c4 b7 h2 b6 h4 d6 c3 Nf3 c2 Na3 a4 Rg1 h1B Bb5 h3 Nc4 a3 Bb2+ e5+ Ke4 c1N Kd5 a2 d7 h2 Qb3 Ne2 Rad1 Nc6 b8R a1B b7 Qe7 Nb6 Ra3 Na8 Qg7 g5+ Ke7 g6 e4 Bc3 e3 Ba5 Ned4 Kc5 Kf6+ Kb6 e2 Kc7 e1Q Qd5 Ne5 Kd8 Rc3 Qc4 Qh6 g7 Bc5 Qd5 Ne7+ g8B Rh7 Bf7 Qg7 Bg6 Rh3 Bh7 Nc4 Bg6 Qe6 Bh7 Ne5 Bg6 Bb2 Bh7 Kf7 f6 Rg3 Bb1 Ba1 Nh4 Rgd3 f4 Bb2 f5 Ba1 Qc4 Bc6 Qa2 h1Q Nf3 Qhg2 Qd5 Bb2 Bc4 Ba4 Bb5 Qh1 Nc7 Bba3 Ra8 Qhg2 b8N Bb7 Ra6 Ba7 Qa2 B3c5 Na8 Be4 Nc6 Bb8 Ne1 Qf3 Qb3 Qe3 Qd5 Bg2 Nf3 Bh1 Qc4 Qd5 Qa2 Kg8 f7+ Kh7 f8R Qde4 Nb4 Qb7 f6 Kh6 f7+ Kh5 Rgf1 Kg4 Nc6 Kf5 Rg8 Ke4 f8B Qg6 Bg7 Qg4 Bh8 Qg7 Qb2 Kd5 Na7 Ke4 Rg1 Kd5 Bc6+ Kc4 Qc1 Kb3 Bb5 Qf7 Nc6 Qg7 Bc2+ Ka2 Bb1+ Ka1 Qc2 Qg6 Qb3 Qg7 Qd5
1r1kq1R1/2P1q3/2rqR2B/1b1N3n/Q1nK1b2/2N3nR/1PB1NRqB/2bB4 b - - 0 1 illegal: No possible last move, all moves rejected
3bnNK1/kr1R4/1B1R4/1P1B1nb1/Nb1bRN2/3RP1rN/Qb4b1/2nqB3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 Kd7 Kg3 f5 Kf4 c5 d4 Kc7 b4 Kb7 h4 a5 b6 g3 h5 a4 d6 a3 b5 c4 d5 c3 h6 a2 h7 g2 d7 c2 d6 Na6 e6 g5+ Ke5 g4 e7 f4 Ke6 g3 Kf7 f3 e8R f2 Nc3 Nc7 Qd2 Ne7 Rh3 Rg8 h8N Rb8 Ng6 Nf5 Re4 Ne8 Nf4 Be7 Rb1 a1B Na4 Bb2 Rh7 Bh4 Ngh3 g1B Bg2 f1N Ra1 Bhf6 Ra3 Bc5 Rd3 Bb4 Rg7 Ka8 b7+ Ka7 Bf3 g2 Rg6 Ra8 b8N g1B Rg7 Bgd4 e3 Bb7 Qg2 Bg5 Bd2 c1B Be1 N1g3 Qe2 B2a3 Qa2 Bcb2 Rh7 Rg6 Rg7 Ba5 Kg8 Ne2 Bh1 B3b4 Bg2 Qb6 d8R Nc1 Nd7 Rb8 Nf8 Qc7 d7 Qc2 Bf3 Qd1 Bh1 Bh4 Bf3 Rg3 Rg6 Bg5 Rd6 B2c3 Ree6 Bc6 Bd5 Bb2 Re4 Ba8 Rc8 Bc6 d8B Rb7 Rc7 Bab6 Rcd7 Bc7 Bf7 Bd5 Re5 Bg2 Re4 Bb8 Ba5 Bc7 Bd5 Bcd8 Bb6+
1bQ4b/rB3n1b/1b2R1PB/P1nRr1Nk/1NB5/2NB2b1/K4b2/1nNq1R2 b - - 0 1 illegal: No proof kernel
2R5/N1Pr2R1/kr5n/2brPn2/RBR1n1rN/1N4qB/K1Q3B1/n1Nbr3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 g5 h4 a5 e4 d5 b4 Kd7 c4 Kc7 Kc2 Kb6 Kb3 f5 e6 f4 e5 g4 e7 a4+ Ka2 f3 e8B f2 h6 d3 h7 g3 c5+ Ka7 b6+ Kb7 b5 g2 h5 d2 h6 d4 Rh4 d3 Qc2 d1N Ne2 g1R Nd2 a3 Bg2+ Nc6 Nb3 f1R Bd7 d2 Rc4 Qh4 Bdh3 Rf6 Bb2 Bg4 Bc3 Rff1 Nec1 Re1 Ba5 Ra6 Bb4 Kb8 b7 Ka7 b8N Nd4 c6 Qg3 c7 Nf5 Nc6+ Kb7 b6 Bc5 Qb2 Nf2 Na7+ Ne4 Qb1 Ra5 Qc2 Ka6 b7 d1R b8R Rd7 Re8 Bd1 Re7 Rb5 Rg7 Rb6 Nc6 Nge7 Na7 Rhd8 h8N Ng8 h7 Ngh6 Ng6 Rd5 h8R R8d7 Kb1 a2+ Kb2 Rgf1 Rc8 Rf4 Nh4 Rg4 Rb1 a1N Ka3 Bg1 Rb2 Kb7 Ra2 Bc5 Kb2 Re3 Ra4 Re1 Na5+ Ka6 Kb1 Qf4 Ka2 Qg3 Nab3+
1Q2K3/2b2P2/k3n1RR/2RqNrB1/1r4n1/NPBNbb2/n1B1R1n1/3Brr2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 Kc7 f4 Kb7 g4 h5 d4 h3 d6 h2 b6 a4 d7 c4 Ke6 c3 Kf7 e5 g5 c2 f6 e4 d5 h4 g6 e3 g7 a3 b3 a2 d6 h3 f5 e2 Nf3 e1R Bd2 c1R Na3 Rh4 Be2 Rb4 Bc3 Nc6 Ne5 Ra5 Nd3 Ka6 b7 Nd4 b8R Bb7 Rc8 Bf3 Rc5 Ne7 g8B Ne6 Bh7 Nc6 Rb1 a1B Rb2 Qa8 d8R Bh6 d7 Be3 Ke8 Qb7 Rg1 h1N f7 h2 f8N Nf2 f6 h1N f7 Ng4 Ng6 Ng3 Nge5 Nf5 Rh1 Qa8 Rh6 Nh4 Qd2 Rab5 Bd1 Ng2 Rc8 Ra5 d8B Qb7 Bg5 Rf1 Bc2 Rce1 Bd1 Qb5 Rd8 Qc4 Qf2 Qd5 Re2 Bb2 Rd6 Bbc1 Rd7 Bf4 Qg3 Bce3 Nec4 Bc7 Rd6 Rb6 Bf5 Nb4 Nce5 Na2 Qh2 Nef4 Rdg6 Ne6 Nf4 Rb4 Bfc2 Raa4 Nfd3 Rf4 Nc6 Rf5 Qd6 Rb4 Nce5+ Bb6 Qd8 Bc7 Qb8
2bq2Br/3Bb2b/1R3r1n/1N1R1Rr1/3q2k1/QrB1P1bn/4K1NP/1R1N2N1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 b4 Kd7 d4 g5 d6 Ke6 b6 Kf5 e6 c5 b5 a5 e7 a4 e8B c4 d5 c3 b7 g3 d7 c2 e3 a3 d6 g2 b6 g4 Be2 a2 Kf2 g3+ Kf3 Be7 Nc3 Nc6 b8R Ra6 b7 Nb4 Bb5 Nd5 Bb2 c1R Bc4 Rb1 Ke2 Kg4 Qd3 f5 Nd1 f4 Qa3 Nh6 Bc3 Rb3 Rc1 a1Q Rb1 Nc7 Bg8 f3+ Kd3 f2 Ke2 Rbb6 Rb5 Ne6 Re5 Ng5 Rf5 Qc7 d8R Nh3 d7 Rb3 Ra8 Rf6 b8N Qb6 Ra6 Qc7 Rb6 f1B+ Kd2 Bc4 Nc6 Bd3 Nd4 Be4 Nb5 Qb8 Nf3 g1B Ke2 Bf2 Ng1 g2 Nf3 g1R Nb2 Bd5 Ba5 Bf7 Bd2 Qc7 Bb4 Rg2 Rb1 Bh5 Ng1 Bg6 Nd1 Kh4 Be1 Qd4 Bc3 Ba6 Rdb8 Rg3 d8N Rg5 Ne6 Kg4 Nf4 Bh7 Ng2 Bg3 Rd8 Bc8 Rdd5 Qd8 Bd7
3nq1Br/3PB2R/6nb/1N1RNbN1/1b2n1r1/qk2K1P1/bBBRR1Q1/n7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 Kd6 e4 f5 d4 a5 g3 c5 b6 h5 g6 h4 b5 f3 g7 f4 b7 h3 b6 h2 Ra2 a4 Rc2 a3 Qe2 a2 Nc3 a1N Bb2 c4 Rd2 Nc6 b8R Nge7 g8B Ng6 b7 Bf5 Nh3 Qe8 Ng5 Nd8 Rc8 Ra6 b8N Ra4 Nd7 Rb4 Bh3 Bh6 Rhd1 h1Q Ne5 Bf8 Bg4 Qh7 Bh5 Qa7 Rc7 Qa3 Rh7 Bh6 Qf1 Ra4 Qg2 Bf8 Kf1 f2 Ke2 f3+ Ke3 f1B Bg4 f2 Be2 Ra7 Bd3 Rg7 Bc2 Bd3 Bb3 Bb1 Bc2 Kc7 d6+ Kb6 d7 Ka5 d5 Kb4 d6 Ba2 Rd5 Be7 R1d2 f1N+ Ke2 Bf8 Nb5 c3 Kf3 Ne3 Kf2 Ng4+ Ke2 Nf6 Ke3 Nc6 d8B Be7 Bb3 c2 d7 Bd6 Be7 c1B Bf8 Nd8 Be7 Qa4 Bc2 Qa3+ Nd3+ Kc4 e5 Ne4 e6 Bb4 Bf8 Qf7 e7 Qe6 e8R Qe7 Bb1 Kb3 Ne5 Qf7 Re6 Qe8 Be7 Nf8 Ngf7 Rg4 Ng5 Ng6 Rf6 Be6 Rf2 Bf5 Re2 Qa4 Ne6 Qa3 Kd4 Rf4 Rd1 Rf2 Bd3 Bh6 Ng5 Rf4 Ke3 Rh4 Rdd2 Rg4 Bc2+
3b1r2/2P1nb2/B4R1K/2kq1Bn1/b1NNNBQ1/q2PRn2/n2r1bB1/5R1R b - - 0 1 illegal: No proof kernel
3B1n2/1R3NR1/b3R2r/K1Nq4/B1p2Bq1/4BNQP/1qPn1r1b/nr1Nk3 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Kd2 Ke7 Kc3 d5 Kb4 g5 f4 d4 h3 d3 e6 Kd6 b6 Kd5+ e7 Kd4 b7 g3 f6 g4 f7 d2 f5 Ke3 f6 Kf2 Nc3 g2 Ka5 g3 e8N Rh6 b4 Qd5+ b5 c5 b6 Bd6 f8N Nd7 b8B Ba6 f7 Ngf6 b7 Ne4 Bb5 c4 Ne6 Nf8 Nf3 g1Q Nc5 g2 Ba4 Bh2 Bf4 Qf1 b8R g1Q Rb6 Qg4 Rg1 Rb8 Rg6 Rb1 Nd6 Qfd3 Ra2 Q3d4 Re6 Qf6 Rg3 Qfg7 Qh1 d1R Rb2 Nd2 Rb7 Rf1 Rg1 Qge5 Nd1+ Ke2 Qg2+ Rf2 Be3 Qf6 Qg3 Qb2 Rg2 Kf1 Ne5 Ke1 Bf4 Nf3 Bce3 Nd2 Nf3+ Kf1 Bc6 Qgg5 Qg4 Bb5 Qh4 Qh5 Rg7 Qg4 Qg3 Ke2 Nce4 a6 Kb6 a5 Nc5 Ba6+ Bb5 Nh7 f8B a4 Nf7 a3 Ka5 a2 Bd7 a1N Be7 Nf8 Ba4 Kf1 Bd8 Ke2 Nd4+ Ke1 Nf3+
2NRr2N/1K1Nnq1r/5P2/1P1Q1R1R/1q4RB/q1kB1b1p/B2nB1bb/7n b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 a5 Kc4 e5 Kd5 h5 b4 d3 g4 h4 f4 d6 c4 e4 b6 d2 b7 a4 f6 e3 c5 e2 c6 e1Q f5 a3 b5 a2 g6+ Ke8 g7 Kf7 c7 Nd7 Kc6 d5 b8R d4 g5 d3 g6+ Ke8 f7+ Ke7 Be2 Kf6 Nc3 Ke5 Na4 Kd4 Nc5 Qe7 Nf3+ Kc3 Ne5 Nb6 Ncd7 Rh7 f6 Ba6 Rd8 Nc4 c8N Bb7+ Kc7 Qe8 Rf1 h3 Rf5 Be7 f8R Bg2 Nf7 Ba3 Rh5 Ne7 Nh8 Qf7 g8B Bc5 g7 Bg1 Rb1 a1Q Rb4 Qa3 Rf5 Ne3 Rg4 Bh2+ Kb6 Qh4 Qh1 d1B Rfe8 Nf1 Bg5 Qe1 Bh4 d2 Bd3 Bdf3 Rf8 Qg6 Ba2 d1N g8B Nf2 Bgc4 Qf7 Be2 Nd2 Bcd3 Qb1 Rfg8 Qbb3 R8g5 Qbb4 Qd1 Nh1 Rh5 Ra5 Rd5 Ra6+ Kb7 Re6 Rf5 Nc6 Rh5 Re8 Rdf5 Ne7+ Be4 Nf1 Qd5 Nd2 B4d3
NqBb4/1B2RrQ1/2PR2NB/pb3rqP/qk3R2/2RN4/Bnb5/r3n2K b - - 0 1 illegal: No possible last move
RRb1nr1B/P2B1N2/1K3n1B/2Nq3n/1N1bNrq1/3Bb1R1/pQ2P1k1/4q3 b - - 0 1 illegal: No proof kernel
3Nb2b/1kQn4/nn3R1b/R2nN3/1B2n1B1/2R1B1N1/1PrrP1pK/2NBq3 b - - 0 1 illegal: No possible last move
1R2Q2r/B1r3n1/1r2BbR1/b1RBNqr1/4k1bB/2P2N2/r1pn1PNK/R7 b - - 0 1 illegal: No proof kernel
2NRR1n1/n1Bq4/2B1k2r/2K5/N2pBBnr/1P1P3b/1rQbN3/Rr3r1R b - - 0 1 legal: proof: h4 f5 e4 g5 exf5 gxh4 Ke2 c5 Na3 b5 Nb1 b4 Ke1 b3 axb3 c4 Nc3 Nc6 Nb1 c3 bxc3 Nb8 Ke2 Kf7 Ke3 h5 Kd4 d5 f4 a5 g4 e6 c4 h3 c5 h2 c4 a4 g5 a3 f6 h4 c6 h3 g6+ Ke8 f5 a2 c7 Kd7 c5 Ra5 d3 Bh6 g7 Bd2 f7 Rh6 f8R Ke7 c6 Qd7 Qc2 Ra7 Nc3 e5+ Kc5 d4 f6+ Ke6 f7 e4 Nd1 e3 Nb2 e2 Na4 e1R Bg2 Rf1 Rd8 Rh4 f8B Ra8 Rb1 a1R Ne2 Ra6 Be4 Ra2 Bd6 Rb2 Ra1 Rb6 Rg1 h1N Bh2 Nf2 Rh1 Ng4 Bg3 Bb7 c8N h2 c7 Nc6 Bd6 Na7 Bf4 Ne7 g8R Rd6 Rge8 Ba8 Bh7 Bg2 Be4 Bh3 Be5 Be1 Bcf4 Bd2 Ncb6 Rfb1 c8B Rf1 Bcb7 Rfb1 Rf1 h1R Nc8 Rb6 Re1 Rf1 Bc7 Rd6 Rf8 Ng8 Rfe8+ Kf7 Bbc6 Rdh6 Ne7 Ke6 Rd1 Rf3 Rh1 Rff1 Nc8+
1N1rn1bK/r2b1NB1/1QprB3/b2R3P/1bN1k1N1/1B5P/2R2b2/Rqn1B3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 g5 d4 a5 b4 a4 b6 a3 b7 a2 h3 f6 b5 c6 b6 f3 Na3 f2 Bb2 g4 Qb1 g3 Rh2 g2 Nf3 g1B Ne5 Rh7 Nac4+ Ke7 d6+ Ke6 d7 Rh6 Ng4 Na6 b8B Nb4 b7 Ra7 Bg3 Nd3 b8N Qb6 d8R Nc1 Rd5 f5+ Kf4 Rf6 Kg5 f4 e4 f3 e5 Bb4 Bd3 f1R Bc2 f2 Bb3 Rf8 Kg6 Bd7 Kg7 Rd8 Kh8 Rd1 Bc3 f1B Rc2 Kf5 e6+ Ke4 e7 Rd3 e8B Bf2 Bf7 Nf6+ Bg8 Ne8 Be6 Be2 Be1 Rd1 Be5 Ba5 Bg7 Bf1 Rc5 Qb5 d5 Rd2 Nce3 Bc4 d6 Qb6 Rd5 Rd4 Ba4 Qb7 Qb6 Bb4 Rb1 a1B Bb3 Bac3 Ra1 Ba5 Ba4 Ba2 Nc4 Bcb4 Bb3 Qa6 Nce5 Qf1 Nc4 Qd3 Rd2 Qb1 Rc2 Bc8 d7 Rd3 Rc5 Rd6 Rd5 Nd3 Re5+ Kf4 Bd5 Nb2 Ba4 Nd3 Nce3 Nc1 Bf7 Bd5 Nc4 Be6 Rf5+ Ke4 Bb3 Bd5 Bg6 Bg8 Bf7 Ba6 Rd5 Rc8 d8N Bb7 Be6 Ba6 Nf7 Rcd8 Rdd2 Bc8 Rd3 Bd7 Rd5
bRb5/K2b3B/bBprrN1k/P1N1B2N/RQ4N1/2rn4/1b1B3P/1Rq3n1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 f5 Ke3 Kf7 Kd4 b5 e4 g5 a4 Kg7 d6 f4 Kc5 b3 d4 f3 e6 b4 e5 g4 a5 g3 d5 g2 e7 f2 e8N+ Kh7 h6 b2 e6 b3 e7 Nf6 d7 Nh5 d6 Nc6 Nd2 b1B Nc4 b2 Qd2 Nb4 Ra4 Bg7 Ne2 g1R Ng3 Ra6 Ne3 Bf5 Bd3 Nf4 Nh5 f1B Nef6+ Kg6 e8N b1B h7 Ne2 Ne4 Kh6 N8f6 Re8 h8B Re6 Kb5 Bc2 Nc5 Rg3 Qe1 Rf3 Bd2 Ng1 Qb1 Qg8 d8B Bg2 d7 Rad6 Be4 Nd3 Qb4 Bg4 Bf5 Rh3 Bg6 Ba8 Bh7 c6+ Kb6 Bb3 Bc7 Bc4 d8R B4a6 Ka7 Bd7 Rb8 Qd8 Nfe4 Qg5 Bb6 Bb2 Be5 Qf4 Nef6 Qc4 Qb3 Qc1 Qb4 Nf4 Nc4 Rc3 Ne3 Nd3 Qb5 Nh3 Qb4 Bdc8 Rd1 Ng1 Rf1 Re8 Rd1 Bgd7 Re1 Ree6 Rf1 Qc2 Rb1 Qc1 Neg4#
3nN3/3K1k1B/P1Pn1r2/Nb1N2RN/5R2/3rB1p1/r2q1Q1B/bnRRn1n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 d5 Kf3 b5 Kf4 g5+ Ke5 e6 h4 g4 a4 b3 c4 d4 f4 b4 f6 b2 h6 d3 f7+ Ke7 h7 d2 f5 b3 a5 Qd3 c6 Nf6 c7 Qf3 h5 Qf2 a6 Qa7 c5 Ng8 h6 Qb7 c6 Nf6 Qc2 d1R Nh3 Rd3 Nd2 b1N Nc4 b2 Qf2 Nc3 Be3 b1N Na5 Qb2 Nf4 Qd2 Nh5 Bg7 f8R Ne2 Rg8 Ne8+ f6+ Kf7 Bg2 Ng1 Be4 Bd7 c8N Nd6 Nb6 Bc8 Nd5 Nd7+ Kf4 Nc5 Ke5 Ncb7 Bf5 Ne2 Rd1 Nd8 Rc1 Ng1 Rd1 Bf8 Rg5 Bg7 Be4 Rf8 h8B Rb8 h7 Rb2 Rc1 Ra2 Rd1 Nc3 Rac1 Nb1 Bf4 Bh6 Bh2 g3 Bg7 Bd7 h8R Bc8 Bh7 Bd7 Rg8 Be8 Rf5 Be3 Bh6 Bc5 Be3 Bd4+ Kf4 Ba1 Rgg5 e5+ Kg4 e4 Rf4 Ke6 f7 Bd7 Bb6 e3 Bc5 e2 Be3 e1N Rgf5 Rh8 Rg5 Nf5 f8N+ Kf7 Ne6 Rf8 Neg7 Be6 Ne7 Bc4 Nd5 Bb5 Ne8 Rg8 Rf3 Rg6 Kf4 Rc3 Ke5 Rf6 Rf4 Nd6 Nb6 Qb2 Kd5 Rd3+ Kc5 Rd4 Nd5 Rd3 Kb6 Qc2 Kc7 Qd2 Kd7
5rr1/1B1NbRRP/1BR2p2/n1qn2Pr/R1b1rb2/6B1/2Q2NKN/2k1r1N1 b - - 0 1 illegal: No proof kernel
1RK2B2/k1QR1BP1/3R1n1r/3np1q1/1NrBb3/bPRbnB2/3r2r1/3N3N b - - 0 1 illegal: No possible last move
1R2qNn1/1P1B2P1/3KnNn1/b3BRB1/2bR4/p2R1brr/2r1N1B1/bk5Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 h5 g4 c5 g6 f5 d6 a4 d5 c4 g7 a3 g5 h4 b6 c3 b7 h3 d7 h2 d6 c2 g6 Kb3 Bg2 f3 Bg5 f4 Ne2 f2 Rf1 h1N Nbc3 f3 Nd5 Ng3 Nf6 Na6 b8B Bb7 Ra2 Qc8 d8R Nc5 d7 Nh5 Nh7 Be7 Nf8 Bf6+ Kd6 Nf4 e5 Rh3 e6 Bd5 e7 Nce6 Qe1 c1B e8B Kc2 b4+ Kb1 b5 Ba1 b6 Ra7 Qd1 Rc7 Rd2 Rc2 b7 Rg3 Rd3 Rh3 Rh1 f1B Rd4 Rg3 Rh5 f2 Bc7 Qa8 Rb8 Bf3 d8R Rh3 Bd7 Qa4 Ng3 Bc4 Qh1 f1R Ne2 Bd2 Rd3 Ba5 Rd4 Nh6 g8N Rg1 g7 Ng6 Nf6 Ng8 Bd2 Bb3 Rf5 Bc4 Bg5 Qb5 Rd3 Qa4 Bb6 Qb5 Bd4 Qa4 Be5 Qb5 Bc8 Qe8 Bd7 Bd4 Bc8 N8e7 Bf1 Rgg3 Bg2+ Be1 Rd7 Ng8 Rd8 Nc5 Kc7 Ba1 R8d4 Ne6+ Kd6 Bb2 Bc1 Ba1 Bd7 Ba5 Bg5+
1N2k3/1p4rR/3R1Nr1/K2n3B/4b1bN/B2nbr1P/1P1BRb1q/2nN1RQ1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 e4 c5 a4 f5 d4 g5 Kd2 g4 Kc3 c4 d6 f3 Kb4 f4 d5 f2 a5 g3 a6 g2 h6 f3 e5 c3 e6 c2 h3 Nd7 e7 Kf7 e8N Qg5 h7 Qe3 Nc3 Nh6 Bd2 c1N Nd1 Qe7 Nf6 Bg7 Rh2 Ng4 Ka5 Qe5 Be2 Rg8 h8R f1R Rh7 f2 Nf3 g1B Nh4 Nc5 d7 N5d3 d8R Ne3 Rd6 Bg4 Qb6 Rad8 a7 Rd7 a8N Qg3 Rg2 Qh2 Nc7 Kf8 Na6 Bh6 Qc5 Rg6 Nb8 Rdg7 Bf3 Nc2 Be2 Be3 Rb1 Ncb4 Qb6 Bf5 Bh5 Be4 Qa7 Re1 Qb6 f1B Re2 Bgf2 Ra1 Bfg2 Qd4 Bef3 Qg4 Bh1 Qg1 Rf1 Rc6 Bg3 d6 Nca2 d7 Bg4 d8B Be4 Nc3 Rf3 Rf1 Nd5 Nd1 Nac1 Be7+ Kf7 Ba3 Bgf2 Rd6 Ke7 Ng8+ Ke8 Nf6+
B2K2RQ/3B1k1B/1RNPPpq1/3b1rb1/2qNq1q1/1N1R4/6nr/2B1q1Rn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 Kf3 c5 Ke4 a5 Ke5 c4 g4 c3 b4 c2 d4 h4 e4 f3 b6 a4 g6 a3 g7 f2 d6 a2 g5 h3 b7 h2 g6 Ra7 d5 Qb6 b5 Qc7 b6 Qd8 d7+ Ke7 Bh3 f1Q Nf3 Nf6 g8B Nh5 g7 Ng3 Nbd2 Na6 b8R Nb4 b7 Qd3 Nd4 Ra5 Rg1 h1Q Rb1 a1Q Bh7 Qa2 g8B Bh6 Rb3 Bg5 Qh5 Kf8 Kd6 f6 Rc3 Qac4 N2b3 Qg2 Ra8 Nh1 b8R Qe8 d8N Qg6 N8c6 Qg4 Kc7 Rb5 d6 Nd5+ Kd8 Be6 Ra6 Nf4 Rab6 Rf5 e5 Qe4 Rd3 Bd5 Be6 Ng2 Bd7 Qgf3 Bg4 Qff4 Bf3 Kf7+ Kc7 Qg4 Rg8 Qa6 Kd8 Qc4 Bb2 c1Q Qh3 Qce1 Bc1 Q4e3 Nb8 Be6 Ba8 Qc2 Nbc6 Qc4 Qh2 Rf3 Qh6 Q6h5 Bf5 Qee4 Ba3 Bd5 Bb2 Qg6 Qh3 Qg7 Bc1 Rf4 Qf3 Rh2 Qh3 Rf3 Qh8 Rf1 Bh7 Qgg6 Kc8 Rf3 Kd8 Rf5 e6+
4q1bq/1QN5/rRP5/1B1R1N1n/R2bkq2/Pr1N1pB1/q2NB1RK/q6n b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 Ke6 c4 Kf5 h4 d5 h6 b5 h5 g5 h7 d4 a3 b3 h6 g4 c6 b4 e6 d3 c7 d2 e7 b2 e8B b3 c5 Nc6 Nh3 Ne5 Nf4 Nf6 Rh4 Nh5+ Kh2 Ke4 Ra2 f5 Bb5 Ra6 c6 Qe8 Nd3 Be6 c8N f4 Ne7 f3 Nf5 Bg8 e3 Bc5 Be2 Ba7 Qc2 d1Q Nd2+ Kd5 Qc3 b1Q Qb4 b2 Qe7 Bd4 Qb7 Qa1 e4+ Ke6 Qg7 b1Q Qb7 Qa4 Rc2 Nf7 e5 Kd5 e6 Qba2 e7 Nd6 Rb2 Ne4 Rb4 Qd7 e8N Neg3 Bb2 Nh1 Bc3 Ba7 Be5 Bd4 Bg3 Qc3 Rb1 Qab4 Rg1 Qbd6 Rg2 Qf4 Nf1 Ke4 Nc7 Ng7 Rh5 Qe8 Rh4 Bd5 Rh5 Rf8 h8R Bg8 Rh4 Nh5 Rh7 Qcb2 Rd7 Rf7 h7 Re7 h8R Re5 Bc4 Rb5 Rd6 Rb3 Rd5 Be3 Rh7 Be6 Nb5 Qfb8 Qd7 Qd6 Rg1 Qbh8 Be5 Bg8 Qa7 Qdb8 Rb7 Bb6 Bf4 Be3 Rb6 g3+ Kh3 g2 Qb7 Qd6 Kh2 Qdh6 Nc7 Qg5 Bd6+ Qg4 Ne5 Kf4 Nd2 Bc5 Bb5 Bf2 Rh3 Qg5 Rg3 Qgh6 Rc1 Bd4 Rc4 Qg5 Ra4 g1Q+ Kh3 Qgb1 Kh2 Qba1 Rg2 Qgh6 Ndc4 Ke4 Nd3 Qhd2 Bg3 Qf4 Nd2+
N7/K1b1n1rn/2BR2k1/2RbBb2/2n2B1q/1qBP2NP/Qn1pNN2/2R2r2 b - - 0 1 illegal: No proof kernel
n1QR4/3BNk2/K2bB2B/RN3BR1/n2b4/rP3r1P/1Rn1qpb1/1q2N1b1 b - - 0 1 illegal: No possible last move, all moves rejected
n3N1NK/N1B2r2/bR2B1k1/q3R2P/1b3Bbp/3rRP2/1QqNR3/bn5n b - - 0 1 illegal: No possible last move
7r/2K1B3/1B2Rn2/N1np1b1r/1NB1Pk2/B3bRR1/1b1RPb2/Qq3rNq b - - 0 1 illegal: No possible last move
1B1N4/1RN2r2/QK3NB1/1p2qr2/R1qnnB2/1B1R1b1b/3P2nP/2nkbR2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 a4 e5+ d6 b5 h6 g5 f6 b3 h7 g4 f7 e4 a5 e3 a6 g3 a7 c6 Nc3 b2 Qa4+ Ke5 Nge2 b1B Nd4 Kf4 Bc4 e2 Ne4 e1N Ba2 g2 Qa6 g1Q Ne6+ Kf3 Ba3 Ke2 Nf6 Qf1 f4 Ng2 f5 Qe7 Kb6 c5 d7 c4 d8N c3 Nc7 c2 Bd6 c1N Bf4 Be4 Rg1 Bh6 f8B Qe5 Bd6 Nc6 Rh1 Bd7 Rg1 Rc8 a8B Bf3 Bb7 Nd4 Be4 Kd1 Rh1 Qe1 Rf1 Bg5 Bd3 Bh4 Bdb1 Nh6 Be4 Rg8 h8R Rf8 Rh7 Ng8 Rg7 Rf7 Rg3 Bg4 Rd3 Bf3 Na8 Qe6 Nh7 Bf6 Bb3+ Rc2 Ra4 Re7 Ba2 Bh4 f6 Rc5 f7 Nf6 f8R Qc4 Bg6 Bh3 Bb8 Rf5 Re8 Rg7 Re7 Rf7 Rb7 Bf2 Nc7 Bh4 Rf2 Qe5 Rf1+ Be1 Bh5 Ng4 Bg6 Nf2 Nf6 Ne4 Bb3+
2R2B2/1BNq4/R1bN2QB/PR1q1PbN/2kr1pnb/r5b1/2N1nB2/2n1K3 b - - 0 1 illegal: No proof kernel
N1QR4/R3r3/bn4P1/nrP1N1B1/3p1bqN/3KR3/2r2RqN/bBbB3k b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 b4 e5 c4 d5 f4 a5 g4 h5 c5 h4 b6 a4 b7 h3 f6 Ke6 b5 h2 g6 e4 g5 Kf5 b6 Kg4 f5 Kg3 f7 a3 g7 a2 g6 e3 f6 Nc6 b8N Nge7 g8B Qe8 b7 Ra5 Nd7 Rh7 b8N Rb5 Ne5 Na5 Kd3 e2 Bg5 e1B Ngf3 Bh6 f8R Qc6 f7 Ba6 Be2 Kg2 Rd8 Bd2 f8R Nc8 Re1 h1R Nh2 Bc1 Nbd7 Re7 Nd2 Nb6 Ndf3 Rg1 Qc2 Kh1 Bd1 Bf4 Re2 Rg2 Re3 Qb7 Qb2 Rc2 Nh4 Qa8 Nf6 Qc6 Ne8 Qa8 Nc7 Qb7 Rb1 a1B Na8 Qc6 Re4 Bc1 Rf2 Qb7 Re3 Qc6 Bf6 Bf4 Bg5 Nc8 Qa2 Rb6+ Rb5 Rb8 Rd2 Qb7 Ke2 d3+ Kf2 d4 Bh5 Rc7 Qe6 Qd5 Rb7 Rg7 Ra7 Rb5 Qd7 Qc6 Ba2 Nb6 Bb1 Re7 Qc8 Qd5 Ke1 Qg2 Rf2 d2+ Ke2 Kg1 Kd3 d1Q+ Rd2 Kh1 Bg4 Qdf3 Rf2 Qfg3 Be2 Qg4 Bd1
1rrR1B2/7k/K1pbbB2/B2PN1rP/Q3BnNR/r3q3/3N2n1/q2RN1n1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 e5 Kc4 g5 h4 Kg7 b4 a5 d4 g3 f4 g4 h5 e4 b6 a4 Kb5 a3 b7 a2 d6 e3 d7 e2 f6+ Kh7 d5 e1Q f7 g2 f5 g3 f6 Qe6 Rh4 Bh6 f8B Qde7 d8B Q6f7 Bb2 Qe3 Qa4 Nc6 b8R Qg7 f7 Be6 Nd2 Bf4 Bbf6 Nge7 Rd1 a1R Bd3+ Ng6 Ngf3 g1R Ne1 g2 Be4 Na5 Rc8 Rb8+ Ka6 c6 b5 Rg8 b6 Bd6 b7 Nc4 Ba5 Ra3 Rd8 Rc8 b8N Qh8 Bg5 Qa1 Nd7 Rb8 Bf6 Rc8 Bf3 Nf4 Ne5 Rg5 Ng4 Rf1 Nb3 g1N Bh1 Rf2 Bg2 Rb2 Nd2 Rbb8 Bf3 Ne5 Be4+ Neg6 B8g7 Ng2 f8N+ Kg8 Nd7+ Kh7 Bh6 Qf4 Bf8 Qe3 Bf3 N6f4 Nde5 Bd7 Be4+ Bf5 Bf3 Be6 Be4+
2Rn4/2b1n3/P4B1K/rN1B4/1q1NN3/nRbR1B1p/PrN5/1kQqnbR1 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 f4 c5 g4 e5+ f6 h5 f5 b5 a6 h3 d6 e4 d7 e3 Bb2+ Ke4 d4 h4 d5 c4 d6 h2 Qc1 e2 Bg2+ Kd3 Bf3 e1B Nh3 b4 Na3 b3 Rb1 c3 Rg1 h1Q Nc2 Ne7 f7 Qa5 d8N Qb4 d7 Nbc6 f6 Rb8 Nb7 Nd8 Nd6 Rb7 Ba1 b2 Nb5 Bg7 f8N Bg3 f7 Bc7 Ne6 Bd4 Ne3 c2 f8R Bc3 Ned4 Rg8+ Kh5 Rg5+ Kh6 Rd5 g5 Rb8 Nd6 Ra5 g6 Bb7 Ng5 h3 g7 Be4 Bd1 Bg2 g8B Bf1 Nge4 Rb7 Bg4 Qf3 N6b5 Qd1 Bf3 Rb8 Nc4 Rb7 Nca3 Rb8 Qg5 c1N Nac2 Rb7 Qc5 Rb8 Bd5 Rb6+ Ned6 Kd2 Qc6 Nd3 Rfg8 Ne1 Ne4+ Kd3 R8g3 Rb7 Rc1 b1N Qc5 Ndc6 d8R Na3 Rb1 Rb6 Rb3 Rb8 Rc8 Nd8 Nf2+ Kd2 Ne4+ Kc1 Bh1 Bb6 Rd3 Bc7 Bf3 Rb7 Bb2+ Kb1 Na1 Bh2 Nc7 Qa4 Nc6 Bh8 Rbc3 Rb3 Nb5 Qb4 Qe3 Bc7 Nc2 Nc4 Ba1 Rb2 Ra3 Rb3 Bc3 Rb2 Rb3 Bhe5 Bd4 Na3 Qd2 Bh2 Bf6 Bhe5 Qg5 Bc3 N6d4 Ra4 Qe3 Ra5 Qc1+
n3K2R/5N2/pbn1N3/2b1PB2/n1R4B/1rkbR1N1/Q1P1q1rq/1B2RBb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 Ke3 Ke6 Kf4 f5 e4 d5 b4 g3 h4 a6 b6 d4 h5 g6 c6 d3 c7 g2 b7 d2 h6 Be7 b5 Nc6 b8R Na7 h7 Bh4 b6 Bf2 b7 Ne7 Kg5 f4 Ne2 g1B Ra4 f3 Rc4 Nb5 Nbc3 Qd6 Na4 Nc6 Ng3 Rg8 h8N Bc5 Nf7 f2 Qh5 Bd7 c8B d1N Bd2 Nb2 Be1 Rg7 Qd1 Nc7 Qa1 Ra7 Qa2 Na8 Kh6 g5 Rh3 Rh7+ Kg6 g4 Rh1 Rh2 Kg7 Ke7 e6 Rg2 e5 Qd2 Rh8 Bb6 Nc5 Na4 Kg8 Be8 Bd7 Qh6 Rd8 Qh2 b8R Rb7 Bc8 Bd7 Kg7 Be8 Rd3 Bd7 Re3 Be8 Be2 f1Q Kg6 Qf3 Bf1 Qe2 Kg7 Nd4 Kg8 Bb5 Bf2 Nc6 Be1 Ke8 e7 Bf2 Ne6 Bg1 Rf4 Bd3 Rc4 Bc5 Bf2 Rb2 Rbb4 Rb3 Rce4 Bb6 Rbc4 Bc5 Nh5 Bb6 Bh4 Bf2 Ng3 Bc5 Bb7 Kd7 Kf8 Bb6 Nf4 Kc7 Ke8 Bc5 Bc8 Kb6 Bf5 Ka5 Ngh5 g3 Ne6 Qd2 Re1 Bfd4 R4e3 Qe2 Kf8 Bb6 e8B Kb5 Bd7 Bdc5+ Ke8 Ka5 Bc8 Kb5 Rc3 Kb4 Bb7 Nd8 Bd5 Nc6 Bc4 Rf2 Bd5 g2 Ng3 g1B Qb1 Rb2 Ba2 Rb3 Qa1 Rg2 Bb1 Bd6 Qa2 Be7 Rc5 Bd6 Rd5 Kc3 Rd4 Bdc5 Rc4+
Bknr2B1/r1Bb1pqq/1N2nPq1/2RP4/qR1rRN2/4K1Bb/3N4/1N3Q2 b - - 0 1 illegal: No possible last move, all moves rejected
q1k1bbnr/3pbr2/2RPR2P/1K1NqQ1B/2n1R3/Bb6/2n5/N2RBN1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 Bb7 axb5 Bc8 c4 a5 e4 f5 Ke2 g5 Kd3 a4 h4 a3 b6 f3 b7 a2 h6 g4 h7 g3 c6 f4 e5 g2 c5 f2 Kc4 f3 d4 Ra6 d5 Ra8 c7 Nf6 h5 Ra7 h6 Qe7 e6 Bg7 d6 Bf8 c6 Qf7 Ne2 g1Q Qd3 Qg2 Nd2 Qg4+ Kb5 Qe7 Ng3 Qe4 Rh4 Na6 b8N Ra8 Nh1 Nb4 Be2 f1B Ba3 f2 Rd1 a1B Na6 Nc2 Nb4 Bb7 c8N Kd8 Bh5 Ng8 Nb6 Be2 Nf1 Bf6 N6d5 Kc8 c7 Qe8 e7 Qe5 Re4 Rb8 Bf7 Bh5 Qh3 Qd8 e8R B6e7 Qf5 Ra8 Nd3 Ra4 Nc5 Bg6 Nb3 Ba6+ Kc5 Bc4 Na1 Bb3 Kb5 Rc4 Ree1 Rf4 Re4 Bg5 Re6 Bge7 Nh2 f1N Be8 Kb7 c8R Nfe3 Rc6 Nc4 Nf1 Qa8 Qg4 Bf5 Bh5 Bg6 Qf5 Be8 Qh3 Rf7 Qf3 Nf6 Qf5 Rg8 h8B Kb8 Bg7 Rh8 Rc5 Kb7 Rc6 Ng8 Bf6 Kb8 Bh4 Kb7 Be1 Kb8 Rb6+ Kc8 Rc6+
1QNbn3/Pr1bb3/2n5/BnRRq2k/1NNP1RBp/1BB4K/1Rq5/3r1n2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 f4 Kf7 Kf2 h5 Kg3 c5 a4 e5 d4 b5 g6+ Kf6 a5 h4+ Kh3 e4 g4 b3 g5+ Kg7 a6 c4 d6 b4 a7 b2 d7 c3 Qb3 e3 Nd2 b1Q Bb2 e2 Ngf3 e1B Ra2 c2 Nc4 c1N Bc3 Bc5 f6+ Kf8 g7+ Kf7 f5 Nc6 Be2 Rh7 Rb2 Qa5 d8R Bb6 Rd5 Rb8 Bd1 Bd2 Ne1 Na2 Nc2 Bd7 Bg4 Bd8 Rf1 Qc7 Rf4 Qe5 Rc5 Rb7 Rd5 Rh6 Rc5 Rg6 Rd5 Nge7 g8N Nc8 Ne7 Nd6 Nc8 Ne8 Rc5 Nc1 Rd5 Ne2 Rc5 Rg7 Rd5 Ng3 g6+ Kg8 Rc5 Nf1 f7+ Kh8 f8B Be3 Na1 Qc2 f6 Bc1 Rf5 Bg5 f7 Bge7 Rf4 Rg8 g7+ Kh7 Rf5 Kg6 Rd5 Rh8 g8B Rh7 Bh6 Rg7 f8R Rf7 Bhd2 Rg7 Qa2 b3 Qb1 Rf7 Rh5 Rf2 Be1 Rd2 Rf4 Rd1 Ba5 Qef5 Bec3 Qe5 Ra2 b2 B8e6 Qce4 Nc2 Qe2 Nb4+ Qc2 Qa1 b1N Rb2 Na3 Qb1 Nb5 Rc5 Qc7 Rhd5 Qe5 Qc1 Kg5 Qe3 Qef5 Qe5 Kh6 Qb8 Qe5 Bgf5 Kh5 Bg8 Qb1 Bge6 Qc1 Bc2 Qd2 Bb3 Qc2 Bg4+
Nn4kb/R2n3R/B3pb1n/1n1Q3P/R4b1N/PK2NbB1/2N5/rR1q2Br b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 f4 b5 d4 c5 Kd2 g5 Kc2 g4 f6 c4 d6 c3 d7 e6 h6 g3 d5 g2 h7 Qe8 d8B Bc5 f5 Qd7 d6 Qc6 h5 Bd4 d7 Qb7 Na3 Qd5 Bc7 Bb7 d8R Nh6 Nf3 g1B Bg3 Rg8 h8R Rg7 Rh7 b3+ Kb1 b2 Kc2 b1N Ne1 b4 Ba6 Qf3 Rd7+ Kg8 Kb3 c2+ Be3 c1B Nc4 Na3 Nc2 Nb5 Rh4 Be5 Qd5 Qd1 Rb1 Beb2 Bc5 Bf4 Ne3 Bc6 Ra7 Rc7 Ng2 Bgd4 Bb6 Bde5 Bg1 Rc8 Ne3 Rd8 Qd4 Bf3 Qc5 Rd2 Qd5 Rh2 f7+ Kf8 Nf1 Bh8 Ne3 Rh1 Rg4 Bbf6 Rh4 Na3 Rg4 Nc4 a3 Ne5 Rh4 Ned7 Rg4 Nc6 Rh4 Rd8 Rg4 Ncb8 Rh4 Ke7 f8N+ Ke8 Ng6 Rc8 Ne5 Kf8 N5c4 Kg8 Nb6 Rc4 Na8 Rd4 Kb2 b3 Kc3 b2 Kb3 Bfg7 f6 Rc4 Rc1 b1N Rg4 Nc3 Rb1 Nb5 f7+ Kf8 Rh4 Bf6 Rg4 Rd4 Rh4 Rd2 Rg4 Rf2 Rh4 Rf1 Rg4 Ke7 f8N+ Ke8 Ng6 Re1 Nh4 Kf8 Rg5 Rf1 Re5 Kg8 Re4 Qd4 Rb2 Ra1 Rb1 Qd1 Ra4
2b2krB/6Np/1r3r1N/2b3RB/1PbN1qP1/1QB1rb1R/1N6/nK3RnR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 c5 b4 f5 d4 a5 Kd2 a4 Kc2 f3 b6 f4 b7 a3 d6 f2 e5 c4 e6 a2 d7+ Ke7 d5 f3 g6 c3 g7 Qc7 d8N Nf6 g8R Ra3 Bb2 Nh5 Nd2 Nc6 b8B Na5 Rg5 Nf4 Ne2 Nb3 Nc4 Rg8 Nf7 Nh3 Nh6 Ng1 Nd4 Qf4 Be2 f1B Be5 f2 Bh5 Be2 g4 f1B Bh8 Bf3 Qd3 B1e2 Rf1 a1R Qe3 R1a2 Kb1 Na1 Qd3 Ra6 Qc2 R2a5 Qb3 Ra3 Rh3 Rb6 d6+ Kd8 d7 Bc5 Rh1 Ke7 d8R Raa6 Rdd5 Kf8 Rde5 Ra3 Re3 c2+ Kc1 Qe5 Bc3 Qf4 Kb2 c1R Rd3 Rc2+ Kb1 Rd2 Nb2 Raa6 Re3 Bc4 Rd3 Re2 Re3 Bg2 Reh3 Re3 Rf2 Ra7 Rf1 Rf7 e7+ Ke8 Rg7 Bf3 Rg6 Rff6 Rg5+ Kd7 e8N Ke7 Ng7 Kf8 Qa4 B8e6 Qd1 Bc8 Qb3
1KnN4/BNpb2bR/6n1/qB2N3/Bk1r1P2/rBb3Qn/1R3RP1/1N1bn3 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 a4 h5 a5 h4 g6 b3 d4+ Kb4 f6 b2 d6 h3 f7 h2 g7 Rh4 d7 Nc6+ Kd5 e5 a6 e4 a7 e3 Qd3 e2 Qg3 e1B Nf3 Qg5+ Ne5 Bc3 d8N Bd7 Nb7 Re4 Ra2 Qd2 Na3 b1B f4 Qe1 Be3 Bc2 Nb1 Bd1 Rf2 Qd2 Bc4 Qa2 Bb3 Qa6 Ba4 Qa5 Re1 h1N Ree2 Rd8 a8B Na7 Ra2 Nc8 Rad2 Re8 Rc2 Re6 Ra2 Ra6 Rae2 Be7 f8R Bf6 Rf7 Ra7 Nd6 Ra6 Bc6 Ra7 Nb7 Ra6 Rf1 Nf2 Rc2 Nh3 Rff2 Nh6 g8B Ng4 Rh7 Bg7 Nf7 Ne5 Rce2 Ng6 Ne5 Be8 Bd7 Ra7 Kc6 Ra8 d5 Rd4 d6 Ra7 Nc5 Ra8 Kb7 Ra6 Bg4 Bd7 Rb2+ Bb3 Qh4 Rc4 Qg5 Bc6+ Kb8 Qb6+ Nb7 Qc5 Nd2 Ka3 d7 b4 d8N Bd1 Nef7 b3 Bd7 Kb4 Ra2 b2 Qg3 b1N Ne5 Na3 Nb1 Nc2 Bge6 Qb5 Ba7 Ne1 Bc2 Ra3 Ba4 Rd4 Beb3 Qa5 Rab2 Bb5 Bg4 Be8 Be2 Bd7 Beb5
1n1R1q1r/pB3rrN/PR1R4/2q3Nk/K1n3R1/3Q1rB1/N4P2/Br3Bqb b - - 0 1 legal: proof: g4 c5 e4 f5 h4 g5 b4 d5 bxc5 Bh6 gxf5 dxe4 Na3 g4 Nb1 Bg5 hxg5 Qc7 Bg2 Qd7 Bf1 Qd8 d4 Kf7 Kd2 h5 Kc3 e5 Kb3 b5 c4 h4 a4 e3 f6 Kg6 a5 b4 a6 h3 d5 e2 d6 e1Q c6 g3 c7 e4 f7 e3 f8N+ Kf7 g6+ Kf6 d7 Kg5 g7 g2 c5 h2 c6 Ne7 g8R+ Ng6 Nc3 Bb7 Qd3 Kh5 c8R e2 c7 Ne5 Bb2 Nc4 Ka4 b3 Rg4 Qc1 Nf3 g1Q Rb1 e1R Na2 Re7 Ba1 b2 Nh7 Qf8 d8B Rg7 Bh4 Qc3 Rd1 b1R Rd8 Qe5 c8B Qec5 Nfg5 Rb3 Qe4 Rf3 Bg3 Rgf7 R1d5 Rg8 Qd3 Rgg7 R5d6 Qg2 Rf4 Nc6 R8d7 Qg8 Rfd4 R3f6 Rg4 Rf4 Rg1 h1R Be2 Qe8 Rc7 Qe7 Bf5 Rh8 Rcd7 Qf8 Be4 Nb8 Rb1 Rf1 Bc6 Qg1 Rb6 Rb1 Rd8 Ba8 Bg2 Be4 Bgf1 Bh1 Bf3 R4f5 Be4 Rf3 Bb7
1Rb5/NN5r/1B1rN2R/3B2p1/B2n3k/qB1RqPR1/1r1qQ1PK/4qqn1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Bg7 h6 Ng8 hxg7 Qb6 Bg5 Qc7 Bc1 Qd8 b4 Kf7 c4 Kf6 c5 h5 b6 d5 b5 e5 f3 a5 Kf2 a4 Kg3 e4 b7 h4+ Kh2 e3 c6 Kg5 b6 d3 f6 a3 f7 d4 f8R a2 c7 h3 Qc2 d2 Nc3 d1Q Qf2 d3 Qe2 d2 Na4 Qb3 Nc5 Nh6 g8B d1R Bd5 Nf5 Rg8 Nc6 b8N Ncd4 b7 Rh7 Nc6 Kh4 b8R Ng3 Na7 Qc3 Rab1 a1Q R1b3 Qa3 Nb7 Qd2 Rg7 Qde7 Rd3 Qe5 Bb2 Rb1 Bc3 Rb2 Ba5 Qee7 Bb6 Qg5 Qf2 e2 Qe3 e1Q Ne2 Qe5 Nf4 Nge2 Rg8 Qg5 Ne6 Ng1 Be2 Qf1 Bd1 Qfe1 Qe2 Qge3 B1b3 Qf1 Nb5 Ra6 Na7 Qfe1 Ba5 Rd6 Bb6 Bd7 c8B g5 Rh8 Bb5 Bd7 Ba6 Bda4 Qf1 Nbc5 Bc8 Nb7 Kh5 Rf8 Qfa1 Kg3 h2 Na5 Nh3 Rf4 Qb1 Nb7 Qbc1 Rf1 h1Q Rg4 Qca1 Rf2 Qhd1 Rf1 Qab1 Rh1 Qf1 Kh2 Ng1 Kg3+ Kg6 Rh3 Qbe1+ Kh2 Rc7 Rhg3 Kh5 Rf4 Rh7 Rf6 Kh4 Rh6+
1n3N2/1b2qpNR/6Nq/q2RB2P/kQK4n/1rnR3R/3r1P2/B2q1qNB b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 e6 e4 Ba6 g4 hxg4 d4 Bd6 e5 Bb7 exd6 Bc8 Ke2 Kd7 Kd3 a5 h4 g5 b4 c5 b6 g3 b5 e5 h5 e4+ Kc4 g2 b7 g4 b6 e3 Qd2 g3 Qb4 e2 Bb2 e1N Rh3 a4 Ra3 Qe7 Rd3 a3 Nd2 a2 Ba1 Nf6 Ndf3 Ra3 Nh4 Ne4 Ng6 Rd8 Be2 Rb3 Bf3 Nc3 Be4 Na6 b8B Nf3 b7 Nh4 Bc7 Nb8 Bf3 Na6 b8R Bb7 Rc8 Nb8 Be4 Rh8 Rg8 Rh6 Rg7 Rh8 Rh7 Rd8 Ne2 g1Q Bh1 Qf1 Ng1 g2 Nh8 Ke8 d7+ Kf8 d6 Qd1 Bb2 a1Q d5 Qa7 Ba1 Qa5 Nf3 g1Q Ng6+ Kg8 Rh6 Qgf1 Ng1 Kg7 Rh8 Kf6 Rh7 Rg8 d8N Rf8 Nf4 Ke5 Nde6 Rd8 Nf8 Rd7 Bb6 Rd8 d7 Kd6 N4g6 Qd2 Rf3 Qh6 Ba7 Kc7 d6+ Kc6 Bb6 Rc8 d8R Rc7 Ne2 Rd7 Bc7 Qd1 Rd5 Qf1 Rfd3 Qd1 Rh3 Qf1 Kd3 c4+ Kd4 Qhg5 Rb5+ Ne4 Re5 c3 Ng1 Qh6 Rg5 c2 Rgg3 Qg2 Kc4 Nc3 Rf3 c1Q Re3 Qd1 Ref3 Qee5 Rf5 Re7 d7 Re6 Rff3 Rd6 Re3 Rd2 Rd3 Qe7 Be5 Nb5 Re8 Kb6 d8N Qgf1 Nde6 Ka6 Rd8 Nc3 Qa3 Kb6 Ng7 Ka6 Kd4 Kb5 Qb2 Ka4 Rd5 Ra3 Qb6 Rb3 Kc4 Ng2 Qd6 Nh4 Qb4+
1qq1r1qq/R1k2BQn/1n1RpB1K/8/R1N3r1/3NP2P/2nN2rB/N3b2R b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 f3 hxg4 Na3 g3 Nb1 g2 Nc3 g5 Nb1 g4 Nh3 g3 Ng1 Bg4 fxg4 Qc8 Qa4 Qd7 Qd1 Qd8 b4 Kd7 d4 c5 Kd2 a5 Ke3 f5 Kf4 a4 Kg5 c4 e3 f4 h3 f3 b6 a3 b7 a2 b5 f2 b6 c3 d6 c2 d5 Rh7 Nd2 Rh4 Nb3 Qc7 Bc4 f1N Bb2 c1R Qd4 Nc6 b8B Ra5 b7 Qb6 Nf3 g1Q Qg7 g2 Nfd2 Rh7 Bf6 Nb4 Kg6 Ra6 g5 Rh4 Bc7 Rc2 b8N+ Kc8 Nd7 Ra8 Ne5 Rg4 Nd3 Qb8 d7+ Kb7 d8R e6 d6 Qf2 d7 g1Q Bh2 Qfg2 Kh5 Qc6 g6 Qcc8 Bb5 Bd6 Nc4 Bg3 Re8 Rg2 Re7 Nc2 d8R+ Qbc7 Ba4 Nd2 Rd6 Be1 Be8 Qb8 Bf7 Qd7 Bh4 Nf6+ Kh6 Nh7 Bg5 Kc8 Bf6 Qd8 Ra7 Qh8 Rd1 a1Q Rd4 Qa6 Na1 Qc6 Rd6 Qc5 Rb1 Qcc7 Rb4 Qcb7 Rba4 Kc7 Qf8 Qc8 g7 Rb8 g8N Ra8 Ncb2 Nc4 Qg7 Nb6 Nc4 Rb8 Bg5 Ra8 Nf6 Qb8 Ne4 Qbc8 R7a5 Qbb8 Ned2 Qf1 Be8+ Qf7 Be7 Qff8 Bf7 Qfg8 Bf6 Qa6 Nf3 Qbb7 Rb5 Re8 Nfd2 Qb8 Rba5 Qac8 Ra7+
BnNBn2B/bKpB3n/2P1NNb1/r2r1kQR/2b1nn2/R7/2r3PN/3R4 b - - 0 1 illegal: No possible last move, all moves rejected
4KB2/nBq1b1r1/1p1RR3/r2bB1NN/1P1N4/NQ1qqP2/3R2Bq/r4r1k b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Na6 a5 Nc5 a6 Nb7 axb7 Qd6 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Kf4 Kc6 e5 b8N a5 g4 h5 d4+ Ke4 b4 a4 d6 a3 d7 a2 g5 h3 g6 h4 f6 h2 f7 h3 d5 Ra5 d6 Be7 f8B Rh7 Nf3 Rg7 Qb3 Ba6 Bg5 Bc4 Na3 Be6 Rd1 a1R Rg1 h1R Bf6 h2 Bh3 Bf7 Rg2 Rf1 Rd2 h1Q Nd4 Qh2 f3+ Kf4 Rgf2 Kg3 Rfe2 e4 Re1 e3 Ree2 Qc8 d8N Qa6 Kd7 c5 N8e6 c4 Ng5 Bd5 Ke8 c3 d7 c2 d8R c1Q Rd6 Qd3 Nd7 Qc7 Re1 e2 Be5+ Kf2 Nf6 Kg1 Nh5 Kh1 Re6 Rf7 Red1 e1Q g7 Qee4 Ndb5 Qee3 Nd4 Nh6 g8B Rg7 Bh7 Nf7 B7f5 Nd8 Be4 Bc4 Ba8 Nc6 Bb7 Na7 Rc1 Ba6 Rcc6 Bc4 Rcd6 Bd5 Bg2+
2B2Qnb/Nnq5/3N4/1Pb1B3/NRR1r3/q2pBr2/R1NP1pn1/q2B1K1k b - - 0 1 legal: proof: g4 h5 gxh5 e5 a4 b5 axb5 d6 b6 Nc6 b7 Nb8 f4 exf4 b4 Nh6 c4 Bf5 b5 Na6 b6 Nb8 Nf3 Bd7 Ng1 Bb5 cxb5 Ng8 e4 Kd7 h4 Ke6 e5 Kd5 e6 Ke4 h6 a5 h7 g5 h5 f5 h6 c5 e7 f3 e8B d5 Na3 c4 Bf7 g4 Rh4 f4 Rh2 f2+ Ke2 d4 Bb2 g3 Rg2 a4 Bh5 c3 Nc2 a3 Rc1 Nc6 b8R a2 b7 Ra3 Ra8 a1Q b8N Na5 Nc6 Bc5 Na7 Nb7 Rh2 g2 Rh4 Rb3 Bg4 Qc7 Bc8 Bd6 Ba3 Be5 Bc5 Rb4 Rb1 Rc4 Qc1 Bf6 Qa3 d3+ Kd1 Bd4 Be2 f1N Ke1 Ne3 Bd1 Rb4 Ne2 Kf3 Rb2 g1B Bb6 Rc4 Rb4 Ng2+ Kf1 Bc5 Rg4 Re4 Rc4 Bcd4 Qf8 Bf6 Be3 Bf2 Na3 c2 Rb4 c1Q Nc2 Qca3 Rh4 Bd4 Nc3+ Kg3 Na4 f3 Rf4 Kh2 Rc4 Ne7 Rg4 Rg8 h8B Kh1 h7 Rg6 Be5 Ng8 h8N Rf6 Nf7 Rff4 Bd6 Bh8 Be5 Rf6 Nd6 Rf5 Bh6 Bc5 Bg5 f2 Be3 Ref4 Rb4 Rf3 Rgc4 R5f4 Nc6 Rg4 Ra5 Re4 Na7 Q1c1 Nc3 Qaa1 Ra2 Qa3 Na4
3R1n1k/1brNR3/2q1RQ2/p3qB1q/P3bP2/3p3r/B1n1NBR1/Bb3NK1 b - - 0 1 legal: proof: c4 h5 d4 h4 c5 e6 c6 h3 gxh3 Qg5 h4 Qe7 h5 Qd8 b4 f5 e4 Qf6 exf5 Qd8 b5 Bc5 b6 cxb6 dxc5 Rh7 Qd3 Rh6 Qd1 Rh8 a4 Kf8 f4 g5 Kf2 Kg7 h4 a5 c7 d5 c6 b5 Qe1 g4 Ra3 g3+ Kg2 d4 Ne2 b4 Nbc3 b5 Kg1 e5 Ra2 g2 Ng3 b3 Nce2 e4 Qc3 b2 Be3 b1B Bf2 Bb7 c8R e3 c7 Qd5 Rd8 b4 c8B b3 f6+ Kh7 f7 b2 h6 Qh5 Rd6 Ra7 Re6 Ne7 f8N+ Kg8 Bd7 B1e4 h7+ Kg7 Bc8 b1B Nd7 Nec6 Rh2 Nb4 Ra1 Qc5 h5 Qc6 Ra2 Nc2 h6+ Kf7 Rh5 d3 Rhe5 Ba8 Ba6 Rc7 Bc4 Bb7 Rb2 Ba8 Ba2 Bb7 Nc1 e2 Qd4 e1Q Nce2 Rd8 h8B Kg8 Bg7 Rdc8 Re7+ Kh7 R5e6 Rh8 Qf6 Qd1 Nc3 Qf3 Be2 Qg4 Nf1 Qh5 Bg4 Qe5 Bf5+ Kg8 Nb6 Nd7 Ne2 Nf8 Nd7 Nd4 Rd2 Nc2 Qh4 Qeb5 Bc3 Qe5 Ba1 Rh7 Kh2 Kh8 Qf6+ Rg7 h7 g1Q+ Kh3 Qg6 Kh2 Bg2 Kg1 Qh5 Qh6 Rg8 Qg6 Rg7 Qf6 Be4+ Neg3 Ng6 Be1 Qd1 Qh4 Qh5 Rg2 Rg8 Ne2 Rg7 Bg3 Rg8 Re8 Kg7 Rd8 Nf8 h8R Qg6 Rh5 Rh8 Bf2 Rh6 Re7+ Kh8 Rhg5 Qf7 Rg6 Qe8 Qg5 Rh3 Rge6 Qh5 Qf6+
1Q1N1N2/Bn1r1rrB/3p3p/2b1BR2/P2q1bNk/2RP4/5b1q/B2R1KRn b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 b5 hxg5 Ba6 c4 axb4 Qg4 b3 Qe2 b4 Qd1 Bb5 cxb5 Ra6 Nc3 Ra3 Nb1 Ra8 a4 Kf7 g4 c5 f4 e5 b6 h6 g6+ Kf6 g7 c4 g5+ Ke7 b7 c3 g6 Kf6 Rh3 c2 Nf3 e4 Bb2+ Ke7 Ng5 c1B Nf7 e3 Nc3 Kf6 Bd3 Nc6 b8B e2 Ba7 Nge7 g8R Rh7 g7 Na5 Be4 Qb8 Nd8 Nb7 d3 Qe5 Rh5 Qd4 Qc2 Rc8 Nd1 Rc7 Nf2 Be3 Bc3 b2 Rd1 b1Q Ba1 b3 Qb2 Qa2 Rh8 Bc1 g8R Rf7 Rg1 Be3 Qb1 b2 Rhg8 d6 R8g2 Bg7 Rgh2 Bh8 Rhh1 Rd7 Ng4+ Kg7 R1h4 Kh7 f6+ Nf5 Rh2 Kg6 Rf2 Rg7 f7 Bc1 f8B Rgf7 Bc6 Ng3 Rf5 Nh1 Be4 Be5 Bg7 Be3 Qc2 b1R Qc8 Rc1 Qb8 Rcc7 Rff1 Qab2 Rc1 Qa2 Rc3 Qc2 Rf6+ Kh5 Bh7 Kh4 f5 B5f4 Bh8 Rf8 Rf7 Rg8 Be5 Rg7 Rf8 Rdf7 f6 Rcd7 Rg2 Bc1 Rgg1 Bfe3 Rf5 Ba3 Re8 Bc5 Rf8 Bf4 Rg8 Rfe7 f7 Qa2 f8N Ref7 Rf1 Rg5 Ne3 Rg2 Rg3 Qb2 Rgf3 Rgg7 Rg3 Qa2 Rgg5 Qad5 Rg3 Qg2 Ng4 Qh2 Rgg1 Bg3+ Kd2 e1B+ Kd1 Bef2 Ke2 Bf4 Rd1 B2e3+ Ke1 Bf2+ Kf1
k5r1/n1K2nBb/R1pPRbqN/1B2q3/1PRNB2n/1r1p2N1/b5Q1/3B1N2 b - - 0 1 illegal: No proof kernel
N3q2B/r3R3/1PN2n1R/R1B1N2q/3pprrq/1B3b1Q/nKPkN2b/5R2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 Kf6 b4 g5 h4 d5 h6 e5 h5 a5 h7 e4 h6 g4 b6 d3 Kc3 d2 b5 d4+ Kb2 a4 b7 g3 b6 g2 Na3 Bd7 Bc4 Qc8 Qf3 d1R Bb3 Qe8 Nc4 Rf1 Ne5 Ra7 Qh3 Bd6 Ne2 Nc6 b8N Nb4 Nbc6 g1Q Bd2 Na2 Bb4 Qg4 Bc5 Qeh5 Rg1 Qgh4 Rg7 Rg1 Rf1 Rg4 Rg5 Ne7 Rg7 Re8 h8R Rf8 h7 Ng8 Re7 Rf7 Ra1 a3+ Kb1 Kg7 f6+ Kh6 f5 Rf8 f7 Kg5 f6 Be6 Nd7 Bh2 Nde5 Bc4 Ng3 Bf1 Ne2 Bg2 Nd8 Re8 f8N Bf3 f7 Nf6 Nfe6+ Kf5 Nc7 Rf8 Na8 Kg5 Nc3 Kf4 Ndc6 Ke3 Ne2 Kd2 Ng3 Rfg8 f8R Rf4 Ne2 Rgg4 Rff7 Nb4 Rff8 a2+ Kb2 Qe8 Rf1 Qhh5 Rfg8 Qh4 Rg5 Qhh5 Bg8 a1Q+ Kb3 Qc8 Nf7 Bg2 Bd6 Bh1 Ra5 Qe1 Bc5 Na2 Nfe5 Qeh4 Kb2 Qce8 Bb3 Rf3 Rg8 Bg2 h8B Rff4 Rg6 Bf3 Rh6
b1K4N/3N1n2/1pBbpR1B/q1k2P2/2n1BqN1/1bB1n1N1/1R1rP2Q/1r2R3 b - - 0 1 legal: proof: g4 a5 c4 g5 h4 d5 hxg5 f5 gxf5 Kd7 cxd5 Ke8 b4 axb4 d4 Kd7 Kd2 Kd6 Ke3 c5 Kf4 h5 a4 b3 f6 c4 f7 h4 g6 c3 a5 c2 a6 h3 g7 h2 a7 e6 Nh3 b2 Nc3 b1Q Ra2 b6 Rb2 Nd7 Ne4+ Kc7 d6+ Kc6 d5+ Kb7 Bg2 Qa1 Re1 h1B Ng3 Qb1 Be4 Ne7 g8R Bg7 f8N Bc3 Rg6 Bb4 Rf6 Ne5 d7 Qc7 d8B Qa1 Nd7 Qa5 d6+ Nd5+ Kg5 Kc6 f4 Rh4 f5 Bb7 Nf2 Nc4 Ng4 Rh6 Be7 Rd8 a8B Bf3 Qd4 Rh1 Qg1 Qb8 Bf4 c1N Qh2 Nd3 Bf8 Rf1 Bh6 Nde5 Bd2 Nf7+ Kg6 Kb5 Bc3 Nde3 Kg7 Bd5 Bc6+ Ka6 Rg6 Qc7 Kf6 Rg1 Ke7 Rh1 Ba8 Kb5 Rf6 Qb8 Nc5 Bg2 d7 Qf4 Bb7 Nd2 Ba8 Bb3 Bad5 Ndc4 Bb7 Rc8 d8N Rc7+ Ke8 Rd7 Bbd5 Rd6 Nd7 Rf1 Bb7 Rd2 Ba8 Bd6 Bad5 Nfe5 Nf7 Bf3 Nh8 Nf7 Nf8 Bg2 Kd7 Kc5 Bc6 Rg1 Kc8 Bf3 Bc2 Bd5 Be4 Rf1 Ba4 Ba8 Bac6 Rf3 Rh1 Rf1 Rg1 Rc1 Re1 Rb1 Nd7#
B1r5/2b1qnbP/2p1P2N/1r2q3/1BkNb1Rn/1Rp2N1R/n1N1K2B/B4Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 h4 Ke7 d4 Ke6 b4 Kd5 e4+ Ke6 h6 f5 h7 g5 d5+ Kd7 d6 Ke6 h5 a5 b6 g4 h6 a4 d7 g3 b5 g2 b7 a3 b6 a2 Ba3 f4 Nf3 g1B Ke2 Qg5 Bb4 Bgc5 Rh3 Ra5 Na3 Rb5 Bg2 Nc6 b8R Bg7 b7 Bd6 Qf1 Qe7 d8B Bd7 Nc2 Be8 Rd1 a1Q Rd4 Bg6 Bh1 Qf8 Bh4 Qe7 Bg3 Bf5 Bh2 Qb2 Bc3 Nb4 Bg2 Na2 Bb4 Nf6 Bh1 Rc8 h8B Ng8 h7 Nh6 Bg2 Nf7 Bh1 Kd7 e6+ Kc6 e5 Be4 Bg2 Qf6 e7 Qh4 e8N Qe7 Bd2 Kc5 e6 Qc3 Nf6 Qa1 Ng4 Bde5 Nh4 f3+ Ke3 f2 Ke2 Bd6 Nh6 Qb2 Nf3 Qc3 Rd3 Qe5 Rb3 Kd5 Ra8 Kc5 b8N Kd5 Qd1 f1N Nc6 Ne3 Qf1 Nf5 N6d4 Nh4 Ra4 Kc5 Bc3 Kd5 Ba1 c3 Bh1 Bf8 Bf6 Bg7 Bg5 Kc5 Bg2 Kd5 Bc1 Kc5 Ba3+ Kd5 Bb4 Kc4 Bh1 Kd5 Ba5 Kc5 Ng5 Bg6+ Be4 Q5f6 Ba8 c6 Ndf5 Bc7 Nf3 Qe5+ Re4 Kd5 N5d4 Kc4 Bb4 Qf4 Re5 Be4 Rg5 Qe5 Rg4
6BK/1nr4P/P3R1qR/1b2krBR/6qB/bRqnNQp1/2p1r3/3BN2N b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 g5 Kg4 b5 Kf5 c5 h4 b3 e4 g4 a4 g3 d4 b4 a5 f6 Kg6 c4 e6+ Kd6 e7 b2 e8B f5 e5+ Ke7 a6 c3 h6 c2 h7 f4 h5 b3 e6 Kd6 h6 f3 e7 f2 Bg5 Nc6 Nd2 b1Q Nc4+ Kc7 d6+ Kb8 d7 Kc7 d5 b2 d6+ Kb8 Ne3 Qc7 d8R Qc1 d7 b1Q Rh5 Ra7 Bf7 Nf6 e8N Ng4 Be2 f1R Bg8 Na5 Nf3 Ba3 Kg7 Nf2 Nf6 Qbb6 Nfg4 Nb7 Re8 Nd3 Ne1 Rf5 Rb1 Qc3+ Re5 Kc7 d8B+ Kd6 Rb3 Be6 Nf2 Bd7 Nh1 Bb5 Bh4 Qbd4 Bdg5 Qg4 Bf3 Q1d2 Qe2 Qd1 Qf2 Qda1 Bd1 Qc6 Qf3 Qac3 Bf7 Rd8 h8R Re8 Bg8 Re6 Rh7 Qe8 Kh8 Qg6 Rg7 Re7 h7 Rc7 Rh6 Ra8 Rc5 Re8 Rc6+ Ke5 Rh5 Qf7 Rch6 Qg6 Rf7 Ree7 Rf6 Kd4 Nf1 Re2 Ne3 Ke5 Re6+
8/5Rnp/1q3B1b/PBn1Nr1N/b1KBp2B/R2Q1bqk/1N1r1q1P/3R3R b - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 f4 g5 fxg5 Na6 cxb5 Nb8 b4 axb4 Ke2 Kd7 Kd3 e5 a4 f5 g4 c5 d6 Ke6 g6 e4+ Kc4 f4 d4 f3 d7 b3 b6 b2 a5 f2 d5+ Ke5 b7 Nf6 g7 Nh5 g8R Qg5 d8R Na6 b8B+ Kf6 d6 Bd7 Ba7 Ba4 d7 Ng7 Nc3 b1Q Qd3 Qb6 Bb2 Qh4 g5+ Kf5 g6 Kg4 Nd1 Qg3 Bc3 Kh4 Be2 f1B Nf3+ Kh3 Ra3 Bg2 Ne5 Bf3 Nb2 Rc8 Be1 Rc6 Bc3 Rf6 Bd4 Rf5 Bf2 Be7 Rgf8 Bg5 Rf7 Bh6 Bd4 Re8 Bb8 Rh8 Bd6 Rg8 Be7 Re8 Bf6 Re7 Kd5 c4 Bh4 c3 Kc4 c2 Bf6 Nh5 g7 Nc5 g8N Ng7 Bh4 Re6 Nf6 Rd6 Nh5 Rd5 Ra8 Rd6 d8B Rd7 Bdf6 c1Q+ Bc3 Qb1 Rd8 Qbg1 Bd4 Q1f2 Bd1 Bc6 Ba4 Rd6 Bb5 Be8 Ba6 Ba4 Bb5 Rc6 Be3 Qd2 Qd7 Re6 Qd4 Qdf2 Qc3 Re7 Rdd1 Rd7 Qb3 Rd3 Bd4 Rd2 Qd3
3r1N2/R1rBP2n/2R2q1b/5RkB/N2p1RbN/3Q2p1/PB1n2KB/1qbn4 b - - 0 1 illegal: No possible last move, all moves rejected
3B1rbN/2qp2rQ/4qRN1/3B4/1R1R1N1q/R1nPnbrB/P1pK4/1B3k2 b - - 0 1 legal: proof: h4 a5 e4 f5 exf5 g5 hxg5 Bg7 b4 axb4 c3 Bf8 Be2 b5 Rh2 b3 Bd3 b2 Qg4 b4 Rh1 b3 Qd1 Bg7 Bf1 Bd4 Qf3 Bc5 Qd1 Bb4 cxb4 Kf8 Ne2 Kf7 Ng1 Ke8 f4 Kf7 g4 c5 b5 e5 b6 h5 g6+ Kf6 b7 h4 g7 e4 Nf3 c4 Ne5 h3 Nf7 c3 Qc2 h2 Bh3 Ne7 g8B e3 Bh7 Nbc6 b8R e2 Rb4 Rf8 Nh8 Nd4 Qd3 Nb5 g5+ Kg7 g6 Kf6 g7 Bb7 g8B Qc7 Bg6 Bf3 Bd5 Ra3 Rg1 h1Q Bh7 Qh2 Rg3 Ng8 Qc2 Nh6 Qe4 Ng4 Rd4 Kg7 f6+ Kh6 f5 Kh5 f7 Ne3 f6 Qh1+ Bf1 Qh4 Bh3 Rg8 f8N Rg7 f7 Ra8 Ne6 Rf8 Na3 b1B Nc4 b2 Ne5 Bd3 Rb1 Bc4 Neg6 Bb3 Ra1 b1R Qd3 Rb2 Rb1 Bc4 Qc2 Rb4 Ba3 Rb3 Be7 Ra3 Rb4 Bb3 Bd8 Bc4 Qa4 Bb3 Be4 Bd5 Bb1 c2 Bg8 Nc3 Qa6 Re8 f8R Bc4 Rf6 Rf8 Nc5 Bb3 Bd5 Bc4 Bc6 Bg8 Bd5 Rb3 Ne6 Ra3 Bf1 Rb3 Qd3 Ra3 Kf2 e1Q+ Kg1 Nc4 Ne5 Bh1 Rgg4 Na4 Rg3 Qee4 Kf2 Qeg4 Ng5 Qe6 Ke2 Be4 Re3 Rc3 Nh3 Ra3 Nf3 Kg4 Nf4 Kg3 Ne5+ Kh2 Bg2 Kg1 Bh3 Bh1 Qh7 Rb3 Ree4 Rbg3 Re3 Bg2 Ra3 Bf3+ Ke1 Nc3 d3 Ne3 Kd2 Kf2 Neg6 Kg1 Bf5 Kf1 Bh3+
2bB2nN/pBP3NK/R2q1p1R/nB3NRQ/bb6/5rPR/4N1qr/5k1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 c4 d6 b4 h4 b6 h3 g3 h2 b5 d3 b7 d2 b6 Bg7 c5 Nd7 b8R Ne7 c6 Re8 c7 Nc6 b7 Na5 g6 Rf8 Na3 Bh6 g7 Rh8 g8B Nc6 Nb5 Nb6 Ra6 Nd7 Nd4+ Ke7 Kf5 d5 e4 Bf4 e6 Kd6 e5+ Kc5 e7 Rh6 e8N Na5 e6 Nf6 Bb5 Bd6 Qh5 d1Q Ng7 Qe2 Bg5 Qg2 Nge2 Qd7 Bh7 Ng8 Bd8 Be7 Bg6 Qd6 Bh7 Rf6+ Kg5 Bf8 e7 Rf3 e8N f6+ Kg6 Kb4 Ndf5 d4 Ba4 d3 Bb5 Qc5 Ned6 d2 Nf7 d1B Nh8 Qd6 Nh6 Ba4 Nhf5 Bd7 Rc8 Kb3 b8R Kc2 Rbb6 Kd2 Rc6 Rb8 Rc5 Rb6 Rb8 Bc8 Re5 Rc6 Ra8 Rc2 Rc5 Nh6 Bg8 Ra2 Bd5 Ng8 Bb7 Rb2 Kh7 Rc2 Rb1 h1N Rb4 Ke1 Rh4 Kf1 Rh3 Bb3 Rc4 Ba4 Rch4 Qf4 Rg4 Bb4 Rg5 Qd6 Be7 Ke1 Ned4 Qf2 Kg6 Nh6 Nf7 Be6 Rh8 Ng8 Rh6 Bc8 Nh8 Qg1 Kh7 Rh2 Ne2 Qg2 Bd8 Kf2 Be8 Kf1 Bb5
4N2K/4Rp1b/b1Rn1kNq/Rrb2Nn1/b1rP1B1P/1N1BQ3/R3pB2/2b5 b - - 0 1 illegal: No proof kernel
3b4/n2BPb2/1brkbQN1/NR1BPp2/4R2R/4r1qR/pn1K1B1N/3b2N1 b - - 0 1 illegal: No possible last move, all moves rejected
BN6/2P1kNpK/p2R2R1/P3nQ2/1RbN4/b1N1q3/1b1b2r1/BB1nrRb1 b - - 0 1 illegal: No proof kernel
b7/2r1BR1N/n4QB1/1nbr1pb1/1R2pk2/Bn1R1PNK/2RP3n/N4Bq1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 c4 Kd7 h4 Ke6 b6 Kf5 c6 e5 b7 a5 c5 g5 c7 a4 f3 f6 Kf2 g4 Kg3 a3 h6 a2 c6 e3 h7 e2 h5 e1N h6 e4 Ba3 Ke5 Ne2 Be6 c8R Bd6 c7 Na6 b8R Be7 Rb4 Qd4 Kh4 Bd7 Ng3 Kf4 Rd8 Bb5 c8B Nc2 Bf5 Qg1 Rd3 Ra7 Bg6 Nd4 Qa4 Bd7 Qc6 f5+ Qf6 Bc6 Rh3 Bd8 Rh2 Ba8 Rg2 Ne7 Rh2 Re8 h8N Rc7 h7 Ng8 Nf7 Re5 h8B Rd5 Ng5 Nb5 Nh7 Nh6 Bg7 Be7 Bf8 Bc5 Be7 Be3 Nh1 g3 Kh3 g2 Ng3 Bc5 Bb2 Be3 Na3 Ng4 Rc1 a1N Nc2 Nb3 Na1 Bc5 Rh1 Nh2 Rc2 Be3 Ba3 Bc5 Bf8 Be7 Qg7 Bg5 Be7 Qb6 Qf6 g1B Be2 Bc5 Rb1 Bd6 Bf1 Qg1 Rbc1 Rb7 Rc7 Bc5 Rc2 Ra7 Rc8 Rad7 Rf8 Rc7 Rf7
n1kN4/1R2N1Nb/PB1n1bp1/r6P/2B1pQR1/4B1rR/3r1Bq1/2K2Nrn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 d4 b5 Kd2 c5 h4 e5 a4 b3 h6 e4 a5 g6 d6 b2 f6 b4 h7 b3 f5 c4 h5 Qe8 a6 Qe6 f7 Qf6 d5 Be7 f8R Nh6 Nf3 Nf7 Nc3 b1R Nh2 b2 Qg4 Qg5+ Qf4 Bf6 Be2 Qg1 Nf1 Qg2 Rh3 Rg8 Ra4 Ra1 h8B b1R Rb4 Ra5 Kc2 Ra7 Be3 Rc7 Rb7 Rd1 Bf2 Rd3 Bg7 Rg3 Bh6 Rg7 Kc1 Rh7 Nb5 c3 Bc4 c2 Nd4 Rh8 Nc6 Rg8 Kd2 c1N Ne7 Ne2 Kc2 Rga3 Bg5 Ng3 Kc1 Nh1 Bh6 Rg3 Bg5 Nh8 Rf7 Kd8 d7 Re8 Rf8 Nf7 Bh6 Nd6 Bg5 Be5 f6 Rc6 f7 Bf6 Qg4 Rb6 Bge3 Rb2 Qf4 Rd2 Rh8 Rg8 f8N Rg7 Rh7 Rf7 Rb2 Kc7 d8N Nd7 Rb3 Nb6 Nfe6+ Kb8 Ng7 Be6 Rh4 Rf8 Rg4 Bg8 Rd3 Na8 Rc3 Be5 Ra3 Rf5 Rd3 Rg5 Rc3 Nc8 d6 Bf6 d7+ Nd6 Nf7 Qh2 d8B Rg1 Bdb6 Qg2 Rh4 Rg3 Rg4 Bd4 Nd8 Bf6 Rh8 Bh7 Rf8 Qh2 Rf7 Qh3 Nd5 Qh2 Rb7+ Kc8 Ra3 Qg2 Rc3 Nc7 Ne7+ Kd7 Nde6 Rh3 Bed4 Rf3 Nd8 Re3 Nec6 Kc8 Bdc5 Na8 Bd4 Ree2 Rh3 Re3 Bdc5 Rf3 Bce3 Rg3 Ne7+
2bQ1bbR/6p1/n2n3R/1nRN1NPP/6B1/1K1Rr1Np/2Br1Bn1/5kqB b - - 0 1 illegal: No proof kernel
nN1R2B1/2b1B1p1/2nR1P2/3b1r2/N3bN2/kq1PK1QN/3p2bR/rBnB4 b - - 0 1 illegal: No proof kernel
4R3/N2P4/1knpN3/1bB1BRRK/PpB2b2/1B4Rb/nN1nr2n/1Q1q3r b - - 0 1 illegal: No possible last move, all moves rejected
q3R3/1nppR3/2r1BKBb/5N2/1rBR1n2/1PR3bb/2PB1N2/1QbN2kn b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 e5 h4 Bh6 hxg5 Bf8 d4 f5 dxe5 fxe4 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 f4 a5 g4+ Kg6 f5+ Kf7 b3 h5 b6 h4 b7 e3 f6 Kg6 f7 h3 e6 h2 Ke5 e2 e7 e1B e8B a4 Nh3 a3 Nc3 a2 Bd2 Rh4 Qb1 Bh6 Nf2 Ra6 Ncd1 Nf6 Bc4 Nh5 Rg1 h1N Rg3 Rd6 Rc3 Na6 b8R Rc6 Rb4 Nf4 Ra4 Bb7 f8R+ Kh7 Be6 Qa8 Rd4 Nc5 Kf6 Ba6 Bh5 Bf1 Re8 Nb7 Bf7 Bg2 Re7 Bh3 g6+ Kh8 g7+ Kh7 g5 Rg4 Nd3 Bg3 g8N Rh4 N3f2 Rg4 Qb2 Rh4 Rc1 a1B Qb1 Bb2 Re8 Rg4 Ne7 Rh4 Nf5 Ba3 Nde3 Rg4 Re1 Bc1 Ned1 Rh4 Ke7 Rg4 Bc4 Rh4 Bfe6 Kg6 Ree3 Kh5 g6 Kg5 g7 Kh5 g8B Kg5 Nd3 Kg4 Re1 Kf3 Bh7 Kg2 Kf6 Rg4 Re5 Kg1 N3f2 Rg8 Re7 Rb8 Bg6 Na5 Rc5 Rb4 Re5 Nb7 Ra5 Qb8 Ra8 Qa7 Rf8 Qa8 Rfe8
q1B4n/bP3b2/1N1b2N1/2Q2NBp/rr1N4/R1RKp3/B1n1nPR1/1k1Bb3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 g4 Kd6 d4 h5 b4 a5 g6 c5 g7 e5 g5 a4 g6 c4 b6 a3 b7 a2 b5 e3 b6 e4 Rh3 c3 Na3 c2 Nf3 Bf5 Nc4+ Kd7 d6 Ke6 d5+ Kf6 d7 Qe8 d8R Ba3 d6 Qc6 d7 Ra7 Nh4 Ra4 Nd6 Ne7 g8B Ke5 g7 Ng6 Be6 Na6 b8N Nb4 g8B Qa8 Qd4+ Kf4 Bb3 Be6 Ndf5 Bf7 Qc5 Rh7 Rh2 Nh8 Rc8 Rh6 b7 Rb6 d8N Rb5 Rb1 a1B Nd7 Bd4 Nc6 Rb6 Bd2 Rb5 Ra1 c1N+ Kd1 Rb6 Rg2 Nc2 Ng6+ Kf3 Be6 Rbb4 Nb6 Ne2 Bd7 Ng3 Bc1 e2+ Kd2 Be3+ Kc3 e1B+ Bd2 Rb1 Bc4 Rbb4 Bb3 Ke2 Ra2 Kd1 Ncd4 Bf4 Rc6 Bd6 Bc8 Bc1 Ra3 e3 Kd3 Bb2 Bc3 Kc1 Rc7 Ne2 Rc6 Na1 Bd1 Nc2 Rc7 Be8 Ba2 Bf7 Nb5 Ba1 Bf6 Bd4 Bg5 Kb2 Qd5 Ka1 Rcc3 B4c5 Nbd4 Kb2 Nd7 Ba7 Nb6 Kc1 Qc5 Kb2 Bb3 Kb1 Ba2+
4n2N/1pN1P1R1/2rk4/B2BP1Bn/bb1B4/Q1b2nRK/N1p2rN1/b1R3q1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 d5 c4 e5 cxd5 Rh5 fxe5 Rh8 Kf2 Kd7 Kg2 f5 h4 g5 a4 c5 e4 f4 d4 c4 h5 c3 e6+ Kc7 h6 g3 d6+ Kc6 h7 g4 d7 c2 a6 Bc5 a7 Qf6 d8B Qf8 e7 Ba3 a5 Bf5 a6 Kd6 d5 Nd7 Nh3 Ne5 Bb6 Nf3 Bd4 Qg7 Bc4 Bd7 Qd3 Nf6 Rg1 Ba4 Nc3 Rhf8 h8N Ne8 Na2 Bb4 Qa3 Rc8 a8N Rc6 a7 Rf6 Nc7 Rf7 Kf1 g2+ Kf2 Qg8 a8R Rf8 Bd2 Qg7 Rgc1 g1B+ Kg2 g3 Rab1 Bf2 Rb3 Be1 B2e3 Bc3 Rb8 Kd7 d6 Qg5 Bd5 Rf6 Kf1 g2+ Kf2 g1B+ Kf1 Ng7 Rg8 Ne8 Rg7 Ba1 Rc3 Bf2 Rd3 Bfe1 Rb3 Bec3 Bd2 Kc8 d7+ Kb8 d8B Qg1+ Ke2 Kc8 B2e3 Kd7 Bd2 Qd1+ Kf2 Kd6 Kg2 Rf8 Nf2 Qg1+ Kh3 Ne5 Nd1 f3 Bf4 f2 Bg5 f1N Ne3 Rf2 Ng2 Nf3 Rd1 Be1 Rc1 Ng3 Rc3 Nh5 Re3 Nd2 Rg3 Nf3 Na8 Bc5 Ba5 Bec3 Nc7 B5b4 e5+
4R3/pBP1rq2/3bpN2/2B2NN1/Q2N1n2/1b4KR/rPnnrB1n/1Bk4R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 Kf7 c4 d5 f4 h5 Kf2 h4 f6 Kg6 f7 h3 b6 h2 c5 d3 c6 d4 b7 d2 c7 d3 Na3 Nf6 Nc4 Nd5 Bg2 Nc6 b8N Ne5 Kg3 Qe8 Nf3 Rh7 Ne3 Be6 Nc6 Nc4 Qa4 d1R Ra3 d2 Nf5 Qd7 Rd3 Re8 Ncd4 Re1 Rc3 d1N Be3 Nd2 Bf2 N1e3 Ra3 Nc2 Re3 Bh6 f8R Ra1 Rh8 Rf7 Re4 Bf8 Rh3 Ra2 Re3 Rg7 Re2 Kf7 g6+ Kf6 Ng5 Bg8 Be4 Qe6 Bd3 Qf7 Ba6 Rh7 g7 Kg6 Bb7 Kf6 Ne3 Kg6 f5+ Kf6 Rf1 Ke5 f6 Nf4 Rh1 Nb1 Ba6 Nd2 Nef5+ Kd5 Bb7+ Kc5 Qa3+ Kc4 Qa4+ Kd3 Re6 Qh5 Re4 Bb3 g8B Rg7 Bh7 Qf7 Bg6 Rh7 Re6 Rg7 Rd6 e6 Rd8 Bd6 Rb8 Re7 Re8 Qg8 f7 Rh7 f8B Qf7 Ngf3 Rh4 g5 Rh6 Bh7 Rh5 g6 Rh6 Rf1 h1N+ Kh2 Rh5 g7 Ng3 g8N Rh6 Rh1 Ngf1+ Kg1 Nh2 Nf6 Ndf1 Ng5+ Kd2 Bg6 Kc1 Bh7 Nd2 Bg6 Nd5 Bh7 Rh4 Bg6 Re4 Bh7 Re5 Kg2+ Ne1+ Kg3 Nf4 Nh6 Re2 Bb1 Bc5 Bg1 Nc2 Nhf5 Rd7 Be7 Ba3 Bc5 Re7 Bb6 Bd6 Bc5 Re4 Bf2+ Re1 Bg1 Re2 Bf2+
2n5/B1rqbNNK/R2N3p/2NbR2r/P1PpnR1r/1r4B1/1qkRB2Q/8 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 Ke3 e5 Ke4 b5 g4 b3 f4 h6 c4 b2 g6+ Kf6 c6 b4 g5+ Ke7 c7 d6 g7 b3 f6+ Ke6 f5+ Kd7 f7 Kc6 g6 Kc5 f6 Kb4 Qe2 Bb7+ Kf5 d5 c8N d4 Nf3 e4 Ne5 e3 Nc3 b1R Nd6 b2 Qh2 e2 Na4 e1Q Be2 Bd5 Rf1 Bf3 Bf4 Nd7 Bg3 Rh7 Nc5 Bh1 Rf4 Be7 f8N Kc3 f7 Qf2 Nfe6 Nb6 f8B Rf1 Nef7 Nf6 g8R b1R g7 Bd5 Kg6 Rh1 a4 Nc8 Ra2 Ra5 Rd2 Rb7 Rh8 Qg2 g8R Ne4 Ng7 Qe8 Nh5 Rb3 Ng7 Bd8 Be7 Qd7 Re8 Qf2 Bf8 Bf6 Re5 Be7 Qg2 Rh4 Qh2 Bf6 Be7 Rab5 Bd8 Be7 Bb6 Ra5 Rd1 Kc2 Ba7 Nb6 Rb8 Nc8 Rb6 Rab5 Bg4 Qd2 Be2 Qc3 Ra6 Qb2 Bf2 Rbh3 Bg3 Rb3 Rd3 Rh5 Rd1 R3h4 Rd2+ Kc3 Nd3 Qd8 Nh8 Bg5 Nge8 Rc7 Ng7 Be7 Nc5 Qe8+ Nhf7 Qd7 Rd3+ Kc2 Kh7 Rcb7 Rd1 Rc7 Rd2+
1K1R3B/2B1n3/N2NrBkp/Pbb3r1/b2R1N1R/3p3R/1B1q1qnP/2Q4b b - - 0 1 illegal: No proof kernel
q7/2Q2N1N/B1N5/KBrRpnbn/4N1qk/4P1rB/R1Pp1R1q/3rB2n b - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Qd8 g6 Bb7 g5 Bf3 h3 Bg4 hxg4 Qc8 Ra4 Qc7 Ra1 Qd8 Kd2 d5 b4 h5 b6 a5 e3 f5 b7 e5 b5 Ke7 b6 d3 Kc3 d2 g7 h4 g6 Kf6 Nh3 f4 Rh2 a4 Ra2 a3 Ba6 f3 Ng5 f2 Nf7 Nc6 b8N f1R b7 Nce7 Kb4 h3 Nc3 d4 Nc6 d3 b8R Nf5+ Kb5 Rh1 Rf2 h2 Bb2 Qc8 Ka5 Rh3 Rb5 Be7 Rd5 Rg3 Qb1 d1Q g5+ Ke6 Ne4 Qh5 Bc1 Nf6 g8N Rd1 g7 h1N g6 Qh2 Qb7 Nh5 Bd2 Bg5 Be1 d2 Ngf6 Qd7 g8B Rc8 g7 Rc7 Rb2 a2 Nh7 a1Q+ Ra2 Qc8 Ne7 Rc4 Nc6 Qa8 Qc7 Qd4 Nhf6 Rc3 Bh7 Qc4 g8B Qe2 Bg6 Qf3 Nh7 Qg4 Nef6 Ne7 Be4 Nf5 Bd3 Rc5+ Bb5 Nd4 Re2 Kf5 Rf2+ Kg6 Ne4 Nf5 Nfd6 Nhg7 Be6 Kh5 Nf7 Kh4 Bc8 Nh5 Rd3 Ne7 Re2 Qf4 Bh3 Qg4 Rd5 Nf5 Rf2
1k1NB2R/Nr4B1/3Qpq2/KPpr1r2/bR1q4/2bBP1B1/2bq1N1n/1N1R4 b - - 0 1 illegal: No possible last move, all moves rejected
R3nB2/p4N1p/1b5k/P2R4/BKn1nNrB/2R3Q1/1Nr1P2R/2rnB1qn b - - 0 1 illegal: No possible last move
b5N1/1prQ2nN/4k1Bn/R1q4N/4pR2/r1rrB1B1/1PRN3P/q1n3KR b - - 0 1 illegal: Other
bRB1bQ2/r3R3/rbN5/1n1P4/2BNNb1B/N1p2R2/n1P2pRk/1b3K1n b - - 0 1 legal: proof: e4 g5 a4 d5 exd5 b5 axb5 Na6 h4 Nb4 f4 gxf4 g4 Qd6 g5 Nc6 h5 Qg6 hxg6 Nb8 b4 Kd7 d4 Kd6 g7 c5 b6 a5 b7 h5 g6 e5 b5 f5 b6 h4 Bd3 e4 Nc3 f3 Bf1 h3 Be2 f4 Ra2 f2+ Kf1 c4 Rb2 h2 Rb5 a4 Nf3 e3 Nh4 a3 Rb3 a2 Rb1 a1B Bh5 e2+ Kg2 e1N+ Kf1 Nd3 Qd2 Ra7 Qd1 Rh6 Bg4 Na6 b8R Bd7 b7 Ndb4 Re8 Na2 b8R Nc7 Re7 Nb5 Rb3 Be8 Bc8 Nf6 g8N Ng4 Rg1 h1B g7 Bb2 Bd2 Bc1 Nb1 Rg6 Rbg3 c3 Nf6 Be4 g8B Rh6 Ke2 f1B+ Ke1 f3 R1g2 Rg6 Bg5 Bc4 Na3 Bf4 Rh3 Bb3 Kf1 Nf2 Qd2 Nh1 Qf2 Nb4 Bge6 Ba2 Bf7 Bb1 Bg8 Rd7 Bf7 Na2 Nf5+ Kc7 d6+ Kc6 Ng7 Ra7 d7 Kd6 d8N Ba8 Bc4 Rh6 d5 Rg6 Rd7+ Ke5 Nf5 Bc5 Nd4 Bb6 Ne4 Rd6 Bh4 Rh6 Qg3 f2 Qg7+ Rf6 Qf8 Rg6 N4e6 Rf6 Re7 Kf5 Rgh2 Kg4 Nc6 Rh6 Rf3 Rg6 Bg3 Rf6 Rg2 Kh3 Rg1 Rg6 Bh4+ Kh2 Rgg3 Ra6 Ned4 Rg7 Re5 Rb7 Re7 Rba7 Rg2#
k2rr2r/4bnN1/1p2K3/2bPN1pQ/5Rp1/B2n1Rq1/Bb1R1RPB/B6N b - - 0 1 illegal: No proof kernel
2n2n2/B3R1P1/3pNK1p/Nb1N3N/pQq1rB1P/3kBBRr/b2R1n2/6b1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 Nf6 cxd5 Ng8 d6 Bb7 Ra2 Ba6 Ra1 Bc8 f4 g5 fxg5 Bd7 d4 Bc8 d5 Bh6 d7+ Kf8 d6 exd6 Qb3 Ke7 Qd1 Bf8 Kd2 Ke6 Ke3 Ke5 b4 f5 g4 a5 h4 c5 g6 h6 g5 a4 g7 c4 b6 c3 g6 c2 b5 Ra6 b7 Ra8 b6 Ra5 Rh3 Qe7 d8B Rd5 Nf3+ Kf6+ Kf4 Ke6 e4 Kf6 e5+ Ke6 Be2 Nd7 b8B Rd3 b7 Kd5 e6 Kc4 Be3 c1N Nc3 Ndf6 Bba7 Bd7 b8N Qf7 e7 Bb5 e8R Nh7 Bg5 Ne7 g8N Bg7 Nf6 Nc8 Re7 Re8 Nh5 Nf8 Rg3 Bd4 g7 Bb6 Qe1 Qg8 Bd2 Bg1 Bde3 Qd5 Nd4 Qc5 Kf3 f4 Ke4 f3 Nbc6 f2 Ne6 f1B Ra2 Bg2+ Kf4 Bd5 Kf5 Qd4 Bf3 Qc5 Nb1 Rb3 Qa5 Nd3 Bgf4 Nf2 Nc3 Kd3 Kf6 Ra3 Rc2 Ba2 Nd5 Qc4 Qb4 Rc3 Na5 Ra3 Rb7 Rb3 Nd4 Re5 Re7 Re4 Ne6 Rb2 Kf7 Nh1 Rc1 Rh2 Kf6 Rh3 Rc2 Nf2 Rd2#
2N1n1k1/R2BPbB1/p2Q1p2/b4P1B/1RN1n1nb/q1p5/RB2K3/rN1R2r1 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 h5 a4 d5 cxd5 Bd6 axb5 Bf8 g4 hxg4 h4 c5 e4 g5 b4 f6 f4 Kf7 f5 g3 h5 g4 d6 g2 b6 a6 b5 c4 e6+ Kg7 h6+ Kh7 e5 g3 e7 c3 e8B Be7 d7 Bf8 b7 Qc7 d8R Qa5 e6 Nd7 b8N Ne7 b6 Nc5 b7 Kg8 Bb2 Nd5 Rd7 Ne4 Bb5 Nc7 Nf3 g1N Qd6 g2 Nc6 Qa3 b8R Nh3 Ra2 g1B Nfd2 Bf2+ Ke2 Bh4 Na7 Nhf2 Bh5 Ne8 Rd1 Ng4 Nc4 Bb7 Rc7 Bd5 Bd7 Be7 Nc8 Bd8 e7 Bf7 Ra7 Ba5 Rb4 Rb8 Rc1 Rb5 Rg1 Rd5 Re1 Rd1 Rf1 Rh7 Rh1 Rc1 Rd1 Rg7 h7+ Kh8 Nbd2 Ra1 Nb1 Rg6 Bc6 Kg7 h8B+ Kg8 Bb5 Nh6 Ba4 Rg1 Bg7 Ng4 Bd7
1rRNbR2/1BpbnB2/nBB5/q2p2n1/1N2Pp2/1r3Q1k/N4P2/R3Nb1K b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Na6 a4 Be7 h4 Bc5 a5 Bb6 axb6 gxh4 Qd3 Nb8 Qd5 Ne7 Qd1 Ng8 e4 Ke7 g4 d5 b7 f5 b6 a5 e6 Kf6 e7 h5 e8B f4 b5 Kg5 Qf3 a4 Nc3 a3 Bc6 a2 Be3 Na6 b8N h3 b7 Kh4 b6 h2 g5 Bd7 g6 Ne7 g7 Qf8 g8B Qg7 Rd1 a1N Bf7 Nb3 Ra1 Nd2 Na2 Qc3 Bh3 Be8 Bc8 Qa5 Bc5 Rg8 Ke2 Rg3 Bd4 Nb3 Kf1 Nbc5 Be3 Rh3 Kg2 Ne6 Bd4 Ng5 Be3 Nc5 Na6 Rb8 N6b4 Na6 Bd4 Ra8 b8N Bd7 Qa3 Rb3 b7 Kg4 Bb6 h4 Nf3 h3+ Kf1 Rb2 Qd3 Rb3 Ne1 Kh4 Rg1 h1B Qf3 Be8 Rg3 Bg2+ Kg1 Bf1 Kh1 h2 Rg1 Bh3 Rg2 Bhd7 Rg1 Ne6 Rg8 Ng5 Rf8 Bg4 Ba4 Bgd7 N8c6 Rb8 Bb5 Ra3 Nd8 Rb3 Qc3 Kg4 Bc6 Kh4 Qe3 Kg4 Qf3+ Kh4 Kg2 h1B+ Kh2 Bg2 Kg1 Ra8 b8R Bgh3 B8b7 Bf1 Rc8 Rb8 Qe3 Kg4 Kh1 Kh4 Qe2 Kh3 Qf3+
1rBNn1q1/1PQbn1b1/3B1r2/P1p2R1N/ppB1N1b1/5R1N/5R1k/BK1n4 b - - 0 1 illegal: No possible last move
n1b1BRR1/rp4Rp/1n3R1b/B3rP1N/2r1P2N/3Q4/k1p1Kn2/1Bq3NN b - - 0 1 illegal: No possible last move
RNNb1Q2/pR1P4/P1n3Bp/5Rb1/rBqrrR2/1N6/2n4p/2kb1BNK b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 b4 d5 cxd5 Nc6 bxc5 Nb8 h4 gxh4 d4 Kd7 g4 e5 a4 b5 f4 h6 Kf2 b4 Kg2 e4 f6 e3 c6+ Kd6 f7 e2 f5 e1B g5 b3 g6 b2 c7 Be6 c8N+ Kc7 g7 Qe7 a5 Qa3 d6+ Kc6 a6 Kd5 f6 Ke4 d7 Nc6 d8N Bg4 d5 Be7 f8R Qa4 f7 Nd4 d6 Ba5 Nd2+ Ke3 Nc6 b1R Nb8 Nc2 Ba3 Rb4 Rb1 Bg5 Nb3 Ne7 g8B Bd8 Bh7 Nc6 Bg6 h3+ Kh2 Re4 Bb4 Rg8 d7 Rd4 Rb2 Bf3 Qa1 Bd1 Qa3 Qb5 Rb1 Qc4 Rb2 Rg7 Rh8 Rg8 f8R Rg7 Rf6 Re7 Rf5 Ree4 Kg3 h2 Kg2 Na1 Rbf2 Nc2 R2f4 Re5 Bc3 Ra5 Qf8 Ra4 Bb4 Na1 Ne2 Kd3 Rg1 Kc2 Kh1 Kb2 Rg3 Nc2 Ng1 Kb1 Rgf3 Kb2 Rb5 Kb1 Rb7 Kb2 Na1 Kc1 Nb3+ Kb1 Nb6 Ne5 Nc6 Bc7 Rf5 Rd8 Qc5 Re8 R3f4 Re7 Rhb8 Bd8 Ra8 Re6 Nb8 Nc6 Qe7 Ree4 Nc8 Kb2 Qf8 Kb1 Nd2+ Kc1 Nb3+
R2Nr1R1/4RqR1/2B1npN1/pP3b2/1qr3kB/bQ6/n2p1PK1/1NBBb3 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 c4 Ke7 e4 Ke6 h4 g5 c6 d5 h5 a6 c5 d4 h6 d3 h7 g3 c7 g2 c6 g4 Ne2 g1Q Qb3+ Qd5 Nf4+ Ke7 e6 Kf6 e5+ Kg5 e7 g3 e8R g2 e6 a5 e7 Bf5 c8N Nd7 c7 Kg4 Ng6 Ngf6 Nd6 Nc5 c8R Nfe4 Nb7 Ne6 Nd8 Nc3 Rh2 Bh6 Rg8 Na2 e8B Qc5 Rc7 Rc8 Re7 Bf4 Bc6 Qb4+ Nc3 Bd6 Rg7 Rg8 h8B Re8 Rg8 Qh1 Bf6 g1B Rhh8 Qd5 Bh4 f6 Bg2 Be5 Kf1 Bgh2 Nb1 Bc3 Be4 Be1 Kg2 Bd6 Rgg7 Qdc4 Rhg8 d2 Bc2 Nc3 Ra4 Na2 Ra7 Bc5 Ra8 Bf8 Bd5 Qc7 Bc6 Qf7 Ra3 Qf4 Ra4 Ba3 Re4 Rc7 Re3 Qb4 Re5 Rd7 Re3 Rd4 Re5 Rc4 Re3 Nf8 Re7 Ne6 Bd1#
7r/6KR/2Pqk2p/2N1Bb1N/1R2BRNP/R1q3bp/2nB1Np1/qn1Qr3 b - - 0 1 illegal: Other
R3Qq1R/2P1Brnn/3p4/1N1p4/4NpRk/1b2Brbq/3RP3/1NK2BqN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 b4 d4 c6 d5 cxd5 a3 Nc6 axb4 Nb8 b5 Rh6 Ra4 Rh7 Ra1 Rh8 Kd2 Ke7 b4 f5 h4 a5 c4 g5 b6 f4 b7 d6 c5 g4 h6 a4 h5 g3 e6 Kf6 c6 Kg5 h7 g2 e7 a3 e8N a2 c7 Bd7 h6 Ra6 b5 Rb6 Nf6 Be7 Qa4 Bg4 Rh5+ Kg6 Ne4 Qc8 Nh3 g1Q Nhf2 Bd7 Nh1 Na6 b8N Qf8 Nc6 Nf6 Nd4 Nc5 Kd1 Rg8 h8B Nh7 Be3 Rg7 Kc1 Rf7 Bf6 Ne6 Re5 Rb8 b6 Ng7 b7 Ra8 Qc6 Ra3 b8R Qg2 Nb5 Qh3 Bg5 Kh5 Ra8 Rb3 Bf6+ Kg4 Rg5+ Kh4 N1a3 Bd8 Be7 Be8 Rb1 a1Q Qd7 Qd4 Rb2 Qb6 Nb1 Ra3 Bg1 Rf3 Rd2 Qf2 Qe6 Qfg2 Be3 Qg1 N5a3 Ba4 Nb5 Nf6 h7 Bb3 h8R+ Nh7 Bf6 Bc2 Qe8 Bb3 Be5 Bf6 Ba1 Bd4 Bb2 Bc5 Bf6 Bb6 Be7 Ba5 Ra2 Be1 Rd2 Bg3 Rg4+
1B2Rn1B/2p3Np/b5Qr/7P/1KNN1RRp/2P2r2/1n2qq2/NkqRb2B b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g6 h4 b4 Qh5 b3 axb3 Ba6 b4 Bb7 b5 Bc8 Qg4 g5 h5 Qe7 Qb4 Qd8 Qh4 gxh4 Kd2 Ke7 Kc3 a5 f4 d5 g4 a4 b4 a3 g5 a2 e6 Kd6 e7 Be6 e8N+ Kd7 b6 Kc6 b5+ Kc5 b7 Bd7 f6 Bg7 g6 Ra7 f5 Ra5 b6 Nh6 Ne2 Ra8 Nd2 Ba4 Bb2 Qc8 Nd4 Ng4 f7 Rf8 f6 Nd7 b8B Ne3 b7 Nc4 Rd1 a1Q Nd6 Qc1 Bg2 Bb5 Rhg1 Ba6 Bh1 Bh6 Ba1 Nb2 g7 Qe8 g8Q Qe2 Qg5 Qf2 Qg6 Bf4 Rg4 Bg3 N6c4 Ra7 Nc6 d4+ Kb3 d3 Nd4 Re8 f8R Re3 f7 Rf3 Re8 Nf8 Nf5 Kd5 Kb4 Ra8 Nb3 d2 Ng7 Ra7 Rf1 d1Q Rfe1 Qde2 Rf1 Ne6 f8R Ra8 Rff4 Nf8 Ba7 Rd8 b8N Rd6 Nc6 Rf6 Ncd4 Rc6 Qd3 Rh6 Rd1 Qg2 Qg6 Be1+ Ka3 Qgf1 Bb8 Qff2 Ka2 Na4 Bc3 Nb2 Na1 Kc5 Nc6 Kb5 Be5 Ka4 Nd4 Kb4 Bf6 Kc3 Ka3 Qfe3 Ngf5 Q3f2 Bh8 Qff1 Ng7 Qff2 Nd6 Nd3+ Ka4 Kb2 Nc4+ Kb1 Kb3 Nb2+ c3+ Qe4 Kb4 Qec2 Ndf5 Qce2 Nd4+
q3rk2/1P1R4/n2K2Pb/4NR2/B4nr1/2N1pRBb/1p1Qp2N/1qBR1B1b b - - 0 1 illegal: No proof kernel
8/1PB1p2B/Bbqr1B1K/b1Rr4/R1N5/1p2pQq1/RNb1NP2/1R2nk1n b - - 0 1 illegal: No proof kernel
nbr5/PRRn4/bnQ1k3/p1R5/B3qBpK/2RPp1N1/2N5/1BqN1r1B b - - 0 1 illegal: No proof kernel
1krR4/Pqp1B1N1/1R2BN2/1n3qN1/3pB1nB/p2RQ1bK/1P1r4/1b1Rq3 b - - 0 1 illegal: No possible last move, all moves rejected
NBQ1n2R/1r1bK1N1/kP1P4/2p1R1pN/BRqr2RN/6b1/p1n3r1/1B3r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kf5 g5 d4 f6 e4 f3 h4 f2 b4 a4 h6 a3 d6 a2 h5 Qe8 b6 Kc6+ d7 Kb7 e5 Qg6+ Ke6 Qe4 b5 f5 d5 f4 h7 f3 h6 Ra5 Nc3 Qd4 Nh3 Ra3 Bf4 Qb4 Bd3 f1R Na4 f2 Rg1 Qd2 Rg4 Rb3 Bb1 Ka8 b7+ Ka7 Nb6 Qc1 Na8 Nc6 b8R Ba6 d8N Bd6 Kd7 Nge7 e6 Nc8 e7 Re8 h8R Bc7 h7 Rg1 Ne6 f1R Ng7 Rf8 e8B Qc2 Be5 N8e7 Nf4 Rg2 Nfh5 Nc8 Qd3 R1f4 Qf5 Nd4 Qe6 Nd6 Ke7 Qc4 Qc8 Rf1 Bd7 Bb7 b6+ Ka6 Ba4 Nc2 Bh2 R8f2 Re8 Rb4 h8N Rf4 Ng6 Rf6 Rh8 Ne8 Nh4 Rh6 Bf4 Rh7 Bg3 Ka5 Bh2 Bc6 Rb7 Bg3 Rd7 Be1 Bb8 Bg3 Rd6 Bd7 Re6 Qb3 d6 Rd4 Re2 Qc4 Re5 Na3 Bd3 Nc2 Bf5 Bc6 Rb1 Bd7 Qd8 Ka6 Rb4 Ne1 Bg6 Nc2 Qc8+ Ka5 Qc7 Bb5 Kd8 Ka6 Ngf5 Na3 Qc8+ Rb7 Nfg7 Bd7 Bb1 Nc2 Ke7
5n1b/rprRQ1R1/P7/b2N2n1/Kbpp2k1/4b1B1/RBBP2q1/NN1R3B b - - 0 1 illegal: No proof kernel
1Br4B/pQq5/P3RNbp/p2r1N1r/2N2n1P/3rNB2/nK2bk2/1R1R1R2 b - - 0 1 legal: proof: f4 e5 fxe5 f5 c4 d5 cxd5 b6 a4 f4 g3 f3 a5 Be7 a6 Bg5 Qa4+ Bd7 Qa2 Bf4 gxf4 Bc8 Qa5 bxa5 Kd1 Ke7 Kc2 g5 h4 c5 e4 g4 b4 g3 d4 f2 e6 Kd6 e7 c4 e8N+ Kd7 f5 c3 e5 g2 d6 Kc6 f6 Kd5 f7 Ke4 f8Q h6 d5 Nd7 b5 Qf6 b6 Rh7 e6 Qf5 e7 Qe5 b7 Nb8 d7 Qf4 d8N Qf7 d6 Nf6 d7 Nd5 Nf6+ Kd4 e8R Qe7 Nd2 Ke3 Ne2 g1R Nf7 Nf4 d8R Rg5 Ng3 Rd5 Ne5 Qc7 Qb4 Nc6 b8B Rhd7 Be2 f1B Qb7 Kf2 Bf3 Be2 Bb2 Nb4+ Kc1 c2 Nf5 Rd3 Nec4 R7d5 Nf1 Bd7 Re3 Be8 Rb1 Bg6 Bd4 Na2+ Kb2 c1R Re6+ Re3 Be5 Red3 N1e3 Rg1 Rf8 Rg5 Rhd1 Rh5 Ng8 Rd7 Bh8 R7d5 Nf6 Qh7 Bc7 Rc8 Bb8 Qc7 Rg8 Be8 Rgg1 Bg6 Rgf1+
4bRNN/3rB1BR/4Kp2/pQ1R1Br1/2k3nq/P3bb2/2p3qP/N1BN2q1 b - - 0 1 legal: proof: d4 h5 c4 b5 g4 bxc4 gxh5 e5 dxe5 Rh7 f4 Ba6 e4 Nc6 f5 Ke7 e6 Bc8 e5 Rh8 Qd4 Nb8 Qd1 Bb7 Bh6 Qe8 Bc1 Kd8 Bd3 Kc8 Bd2 Qe7 Bf1 Qd8 Bc1 Nc6 f6 Nce7 fxe7 Ba6 Ke2 Kb7 Kd2 Kc6 Ke1 Bc8 Kf2 Kb5 Kf3 g5 Kg4 d5 Kf5 c5 e8R a6 b4 d4 h6 g4 h7 d3 Qb3 d2 Bd3 d1B Nc3+ Kb6 b5 g3 Nf3 g2 Nd2 Be7 Rf8 Be2 Nd1 Ka5 b6 g1Q b7 c3 b8B c2 Bd6 Bg5 Be7 c4 a3 c3 Rb1 Qg3 Qb8 Ka4 Rb7 a5 Nb3 Bd2 Na1 Bd7 Rg1 Qh4 Rg5 Nf6 Rc7 Rg8 h8B Qc8 Bg7 Bf3 Rh5 Ra6 Rc5 Bb5 Rd5 Qb7 Rh7 Be3 Bc5 Qc7 e7 Qb4 e6 Ra7 Bd6 Qd4 e8N Qh4 Bc5 Qcg3 Nd6 Bc6 Bh6 Ng4 Bb4 Qg1 e7 Qf1 e8N Qg2 Nf6 Be8 Nf2 Re7 Bb2 c1Q Bg5 Qch1 Nd1 Bg1 Bgc1 c2 Be5 Rg7 Ng8 Be3 Bf6 Rg6 Bg7 f6 Nf7 Qhg1 Nh8 Rd7 Ke6 Rg5 Bf5 Be4 Bc5 Bf3 Qa7 Kb5 Qb8+ Kc4 Be7 Bh5 Qb7 Be8 Qb5#
3R1q1R/2b1r1Nn/2pNp1p1/BBq5/3rRr1P/k2B2K1/2Q1P1n1/N2RnN2 b - - 0 1 illegal: No extended proof kernel
2R2b2/N1K2pN1/B5Qn/1NpB3r/2bp2k1/P1n2rB1/1RP1B2b/R1N2r1n b - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 a5 gxh5 c6 f4 Na6 b4 axb4 e4 Qb6 e6 Kd8 f5 Qb5 e5 Qc5 f6 Qe7 fxe7+ Kc7 Ke2 Nb8 Kd2 Kb6 Ke1 Kc7 Ke2 b5 Kd3 d5 Kd4 g5 Kc5 d4 h4 g4 a3 g3 h6 g2 h7 b3 h5 b2 h6 b4 Qd3 b3 Be2 Ra7 Nc3 b1R Bf4 b2 Qg6 Rd1 Nb5+ Kb7 Kd6 b1N Bg3 Bg7 e8B c5 e7 Nd7 e6 Ndf6 Bc6+ Kb6 e8N Ng4 e7 Nc3 Rb1 Rf1 Rb2 Ba6 Bd5 Bf8 Ng7 Rc7 Nh5 Nf2 Ng7 Rc6+ Kd7 Ra1 e8B Rf6 Kd8 Rc1 Bec6 Rf3 Bb7+ Ka5 Kc7 Rf1 Nh3 g1B Nf4 Ka4 Nd3 Bh2 Rg1 Nh1 Bc8 R1f2 Ra1 Rf1 Nc1 Ka5 Na7 Bc4 Nb5 Nf6 Ba6 Ng4 Be5 Rg8 h8N Ka4 h7 Nh6 Qd3 Ka5 Ng6 Rh8 Kb8 Kb6 Bg3 Re1 Ne7 Rd1 Be6 Rdf1 Nc8+ Kc6 Bd5+ Kd7 Nca7 Ke7 Qe4+ Kf6 Kc7 Kg5 Qd3 Rg8 h8R Kg4 Ne8 Rg6 Ng7 Rg5 Rg8 Rh5 Rh8 Be7 Rc8 Bf8 Qg6+
b1n5/4rpN1/PQq2R2/3NRB2/p4Br1/rprr2NR/1P1B1b1K/2k1N2B b - - 0 1 illegal: No possible last move, all moves rejected
R3rk2/R3N2r/B2N2rp/Kbp1PBnp/n5R1/3N1Bn1/2PB3q/Q1N3n1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g6 axb5 Bh6 h4 Bg7 h5 Bf8 f4 gxh5 e4 Nf6 e6 Bc5 e5 Ng8 f5 Kf8 f6 Be7 fxe7+ Kg7 Nd2 Kh6 Nb1+ Kg6 Kd2 Kg7 Kc3 a5 e8B f5 g4 d5 b4 f4 e7 h6 g5 a4 b6 a3 g6 f3 b5 c6 Kb4 d4 b7 f2 b6 d3 Nh3 d2 Nc3 a2 Nf4 Nf6 Nd3 Kg8 g7 Na6+ Ka5 Rh7 b8N Bd7 Rg1 Ne4 Bg6 Ng5 e8N Qe7 Qe1 d1N Ne2 Nc3 b7 Qf6 Rg4 Qf4 Bd2 Qh2 Bg2 f1N Bf3 Ng3 Nec1 Nce2 Bf5 Ng1 Qd1 Kf7 g8B+ Kf8 Bc4 Nc5+ Ba6 Na4 Nd6 c5 Nc6 Re8 Ne7 Bc6 b8R Bb5 Rb1 a1R Ra8 Ra3 Ra1 Rb3 Ra3 Rc3 Nb3 Rc4 Qa1 Rb4 Nbc1 Rf4 B5e4 Rf6 Bf5 Rg6 Rb3 Bc4 Rb7 Bb5 Rba7
r2rB2K/3R2NR/N4kB1/N2p3P/1n1n2p1/Qb2NR1p/2rr2P1/1R1nB1b1 b - - 0 1 illegal: No proof kernel
8/p2k2rN/Rn1p2Nr/4Q2R/qb2rB2/2R2B1N/P1rP1p1K/rB1q2BN b - - 0 1 legal: proof: f4 e5 g4 exf4 b4 f5 Bb2 c5 bxc5 b6 Ba3 f3 Bc1 f4 Bh3 g5 Bg2 Ba6 Bf1 Bd3 h3 Bf5 gxf5 Nc6 h4 g4 Bb2 Nd4 Ba3 Ne6 Bc1 Ng5 hxg5 Qf6 Na3 Qe7 Nb1 Qd8 Kf2 h5 c4 b5 e4 b4 g6 b3 g7 h4 f6 b2 e5 d6 c6 h3 c5 h2 f7+ Ke7 c7 Rh7 c8B Rh6 c6 Rf6 c7 Nh6 e6 Qd7 Bb7 Qc8 Qe2 Qd7 c8R Ng8 Qe5 Qc6 Bd3 Qc3 Nh3 Qc6 Nc3 b1R Ba3 Qa4 Rc6 Rc8 Ra6 Rh6 Nd1 Rc2 Bc5 Rb4 Rc1 Nf6 g8N+ Kd8 e7+ Kd7 e8N g3+ Kf1 f2 Kg2 f1R Ne7 Nd5 Ng6 Nb6 Bf3 Bg7 f8B Re4 Bg1 Bh8 Ndf2 Rfe1 Qg5 Bc3 Qe5 Bb4 Be7 Rd1 Bg5 Rf1 Rb1 Rd1 Rb3 Ra1 Rc3 Rb2 Bb1 Rc2 Be2 f3+ Kf1 Rh7 Bf4 Rg7 Nf6+ Kd8 Nh7 Kd7 Nd3 g2+ Kf2 Rc1 Kg3 Rc2 Bc5 Rc4 Ndf2 Re4 Re1 h1R Bd4 Rh2 Nh1 Qa5 Bd1 Qa4 Bg1 f2 Bf3 Ba5 N3g5 Rh6 Nh3 Bb4 Qa5 Rc4 Re5 Re4 Rh5 Rge7 Qe5 Rg7 Bh2 g1Q+ Bg2 Qc1 Bf3 Qe1 Bg1 Qd1 Kh2
1Qr1R1BN/Bn1b1bRr/R2BBPp1/P1p2qp1/5N2/3Rbk2/4p3/KnN5 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 g4 h6 g5 hxg5 b3 Rh5 bxa4 Rh4 a5 Rh8 d4 Kd7 Kd2 Kd6 Kc2 b5 Kb2 e5 f4 g6 a4 b4 h4 e4 h5 e3 f6 b3 h6 e2 a6 c6 a7 Qb6 f7 Nf6 f5 Ne4 f6 Nd7 h7 Qa5 Bh3 Nb8 Be6 Rg8 h8N Nc5 Nh3 Ncd7 Be3 Qb4 Nc3 Ba6 Na2 Rg7 Nf4 Nc5 Rh7 Nbd7 Qb1 Bc8 Nc1 Nb7 Bg1 Rb8 a8B Qc5 Be3 Be7 f8B Nb6 Ra2 Bd7 Ka1 Rf7 Rg7 Nc4 Bf2 Rc8 Ra3 Kc7 d6+ Kb6 d5 Nd2 Qb2 Nb1 a5+ Kb5 Bd4 Qc2 Ba7 Kc4 Qe5 Qf5 Qb2 Be8 d7 Bc5 d8R Be3 Rd6 c5 Ra6 Bd7 Qe5 Re7 Qb8 Kd4 d6 Ke4 Bg8 Kf3 Be6 Be8 d7 Bf7 d8R Rec7 Re8 b2+ Ka2 Nd2 Bd6 b1B+ Kb2 Bd3 Rc3 Nb1 Ka1 Bb5 Rd3 Bd7 Rd5 Nd8 Bc6 Nb7 Ba4 Rc6 Rd3 Rb6 Bab3 Rb4 Nh3 Rh4 Nf4 Rh7 Rd8 Bfe8 Bg8 Bf7 Re8 Qh3 Ba2 Qf5 Be6
3Rn1K1/2N2B1p/1prbNB2/1p1n4/2B1P1bB/b3P2N/2kpQ3/R3rqRN b - - 0 1 illegal: No proof kernel
bB1B1K2/Rp1pP1B1/1p2rp2/2NQN2R/4N2q/3b3N/R2P1nrn/1nkB4 b - - 0 1 illegal: Other
1rn2Rk1/1B1N3p/b3N3/1n1pq1RB/qn5p/4Np1R/B2P1Pr1/3QKRB1 b - - 1 2 illegal: No possible last move, all moves rejected
q1B1n1K1/N2B1p2/BB1p1Ppb/1n5N/1k3b1N/2qQR3/1R1PR1p1/5Rrq b - - 1 2 legal: proof: c4 b5 b4 h5 g4 a5 bxa5 hxg4 Qb3 b4 Qc2 Ra6 Qd1 Ra8 e4 Ra7 Nh3 Rb7 Ng1 Rb5 cxb5 Rh6 Nh3 Rh4 Ng1 Rh8 e5 d6 Qb3 Kd7 Qf3 Ke6 Qd1 Kd5 e6 Bd7 exd7 Ke6 Ke2 Kd5 Kd3 Kc5 Ke4 e5 Kf5 c6 f4 e4 a4 b3 h4 b2 b6 g3 b7 e3 a6 e2 a7 e1B a8B g2 a5 Qc8 h5 Nf6 a6 Qc7 d8N Bg3 a7 Kb4 h6 c5 h7 c4 Ra3 c3 Ba6 c2 Qe2 Ng8 Nc6+ Kc5 Nf3 Qb6 Re3 Qb4 Rf1 Qc4 Nc3 b1Q Ne4+ Kd5 Nf6+ Kc5 Ba3+ Qbb4 Nh5 c1Q Qd3 Q4c2 Nh4 Nd7 b8R Ndf6 B8b7 Qa2 a8B Qca1 Na7 Ne4 Bc8 Nc3 Bc6 Nf6 B6d7 g6+ Kg5 Ne8 f5 Bh2 f6 Nb5 Bb2 Qba5 Bd4+ Kb4 Bb6 Q5a3 Re2 Q3c3 Rb7 Be5 Rb8 Qd5 Re3 Qa8 Re2 Rg8 h8R Rg7 Kh6 Qe1 Rf3 Qh1 Rfe3 Rg8+ Kh7 Bf4 Rb7 B8h6 Rb8 Ng7 Rb7 Re8 Rb8 Re4 Re8 Re7 Kg8 Re6 Re7 Ne8 Rf3 Re3 Rf1 Rh3 R7e3 Rf3 Rfe1 Rf1 Rb7 Rg1 Rf1 Qc6 Rc7 Qc1 Rc2 Qa1 Ra2 Qc3 Rb2+
1rr3r1/1B1r1N1K/R2nR3/b1PQ1pBR/1p2B1RB/3NppN1/1Pb5/1k2q3 b - - 0 1 illegal: No proof kernel
1R2K2N/6B1/4bprQ/1Rb2RBk/pb2N1p1/1p5P/b1Bq1PN1/2RnB2n b - - 0 1 illegal: No possible last move, all moves rejected
1N1b4/Q1BNR1n1/pK3n1b/3B4/pN2p1pB/P3Pb1B/1R1R2q1/nk3b1R b - - 0 1 illegal: No proof kernel
8/p2bPkp1/1n2NpN1/4B1qQ/n1pKBRRN/2B3P1/2Bp3r/2nRrN2 b - - 0 1 illegal: No proof kernel
2n2qRR/3K1kp1/p1N1Rp2/2pnBPNp/1B1Q1rP1/6Bp/7R/2b2BNq b - - 0 1 illegal: Other
1R2B3/1rQB1NKb/3rqN2/pn2bB1b/3p4/P1RP2k1/3N1n2/R1BNnrq1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 b4 c5 bxc5 Qb6 Bb2 Qc7 Bc1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 h5 g4 a5 c4 b5 a3 d5 c6 b4 f6 d4 c5 h3 f4+ Kh4 g5 h2 c7 b3 c6 b2 f5 Ra6 g6 Qe8 f7 Nh6 f6 Bg4 c8B Kg3 g7 h4 g8N h3 c7 Rd6 Bb5 Bh5 Nf3 Rh7 Bf5 Na6 c8B Nc7 Nc3 b1B Qc2 Bg7 f8R e6 Re1 h1Q Nd1 h2 Re3 Qg1 Bcd7 h1R Rc3 Qf7 Bbc6 Nb5 Rb8 Bh8 Be8 Qe7 Bcd7 Ng4+ Ke4 e5 f7 Bg7 f8N Qe6 Nf6 Bh8 Ng6 Rf7 Bc6 Rb7 Bcd7 Bg7 Nd5 Bf6 Nh8 Bg7 Nf7 Bf6 Kd3 e4+ Kc4 e3 d3 e2 Kc5 e1N Nd2 Be5 Nf6 Ba2 Qb1 Na7 Qb6 Nb5 Qc6 Nf2 Qc7 Qe7 Ng5 Bg8 Nf7 Bh7 Kc4 Qh2 Kc5 Rf1 Kc4 Ra6 Kd5 Qg1 Ng8 Rg6 Nf6 Qd8 Ke6 Qc8 Ke7 Rh6 Kf8 Rg6 Ng4 Rc6 Nf6 Rd6 Qb6 Qc4 Kg7 Qe6 Qc7
Q2r3R/qr1p1RN1/1N1b2pN/3P1B2/1kr2NbB/1R1K2P1/nq2B1bR/3n2n1 b - - 0 1 illegal: No proof kernel
1qBq1Nr1/2p2RNR/BB4b1/bRN2p2/NrP2P1n/1Q1B4/b1br4/K4nk1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 h4 gxh4 axb5 Qg5 Ra3 Qf6 Ra1 Qd8 Kd2 Ke7 Kc3 Ke6 e4 d5 g4 a5 b4 h5 Kb2 Ra6 f4 h3 b6 h2 b5 d4 c3 a4 g5 h4 b7 h3 b6 d3 g6 d2 g7 Ne7 g8B Ng6 Bh7 Bb4 Ne2 Rg8 Ng3 Nd7 b8N Nf6 b7 Nh5 Nd7 Rb6 Ba6 a3+ Ka2 Ba5 c4 f6 Qc2 d1R Be3 Rd2 Nc3 Rb5 Rhg1 h1B b8R h2 Na4 Bg2 Raf1 h1B Rf2 Bh3 Rh2 Bf5 Bc5 Bf3 Qb2 Bd1 Nf8+ Kf7 Kb1 Bb3 e6+ Kg7 e7 Kh6 e8N a2+ Ka1 Bcd7 e5 Bfc2 Ne4 Bf5 e6 Rb6 e7 Rb7 Re2 Ng3 Ba7 Kh5 Rh1+ Kg4 Ng7 Kf3 e8B Rb5 Nec5 Nf1 Re7 Kg2 Rf7 Bfd3 Rh2+ Kg1 Bd7 Be4 Rh6 Nh4 Bdc8 Rb6 Qb1 Bed3 Kb2 a1Q+ Kc1 Rb5 Bg6 Qe5 Rh7 Ba2 Qb2 Qe6 Qb3 Qb6 Kb2 Rb4 Ka1 Qb7 Bgf5 Qa8 Rb6 Qb8 Rb5 Be4 Bb6 Bed3 Bg4 Bg6 Be2 f5 Bd3
4rN2/B1bBN1Qp/5B1P/2r1pN1N/4k3/r1Rb1RqB/2R1Pnp1/1K1n2qb b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 gxf5 Bb7 Ra5 Ba6 Ra1 Bc8 Kd2 Kf7 b4 Kf6 h4 Ke5 f4+ Ke4 c4 a5 Kc2 g5 f6 d5 f5 e5 c5 g4 b6 g3 b7 a4 b5 a3 b6 a2 c6 Qc7 f7 Nf6 h5 Ra7 h6 Ra5 Bg5 Bg7 f8N Na6 b8B Bb7 Na3 Rc5+ Nc4 Ng4 f6 Nf2 f7 Bf6 Ba7 Bd8 Rc1 a1R Rh3 Ra3 Bf6 d3+ Kb1 d2 Rc2 d4 Ne3 d3 Nf5 Nb4 Qe1 Ba8 b7 d1B b8N Na2 Qd2 Bb7 Qg5 d2 Qg7 Qd7 c7 Qd3 c8B Bc7 Bd7 Nc3+ Kb2 Qf3 Nc6 Qg2 Nce7 Ba8 Ne6 Re8 f8R Bb7 Rf7 Qf3 Nf8 Bc6 Rc1 Bc2 Bg2 Bd3 Rc2 Ncd1+ Kb1 Ng4 Rh2 Ngf2 Nh3 Ba8 Nf4 Ba6 Bc8 Nb2 Nd4 Ke3 Bd7 Bd5 Bh4 d1Q+ Rc1 Qe1 Rh3 Nbd1 Nh5 Qg1 Rc2 Qg4 Bf1 Bh1 Rf5 Ke4 Bf6 Nd3 Rf2 Bb5 Ndf5 Qg6 Rf3 N3f2 Rfc3 Bd3 Rh4+ Qg4 Bh3 Qf4 Rg4 g2 Rg3 Qg4 Rf3 Qg6 Bb8 Qg3 Ba7
2NB2Nn/1rp2Rn1/b1n2bB1/pRNNb2q/1p3Bq1/R6k/P1PKQ3/3R1r2 b - - 0 1 illegal: No proof kernel
k1K1Rb1r/1NR1rr1n/1b3p2/3n1Pbb/2p2Q1R/p1P2B2/1R2B1BN/B1N3q1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 g4 hxg4 axb5 Ba6 Qd3 Bb7 Qd1 Bc8 Kd2 g5 Ke3 d5 Kd4 Kd7 h4 a5 f4 a4 b4 c6 e4 Kc7 e6 Kb7 Ke5 g3 h5 g2 b6 c5 h6 g4 b5 d4 e7 c4 e8B g3 h7 d3 f5 d2 c3 Qd3 Ne2 g1B Bg2 Na6 Rh4 Be7 Bb2 Kb8 b7 Ba3 Nc1 Ba7 Qf3 d1R Bc6 Ne7 Nd2 Rf8 h8N B7c5 Qf4 Qb1 Nf3 Bd7 Nh2 Ka7 b8R Re1 Re8 Bb6 Kf6 Bac5 e5 Nc7 e6 Ng6 e7 a3 Ra2 Rd8 Bcf3 Bc6 Ba1 Ka8 Be2 Bf3 Rb2 Rb8 Rc8 Bb4 e8B Nd5+ Kg7 f6 Rc7 Rb7 Nf7 Bh5 Bc6 Rh8 Nd8 Bf8+ Kf7 Be3 Bgf3 g2 Ke6 g1B Kd7 Bb6 Kc8 Bge3 Qg4 Bg5 Qf4 Be7 Bg2 Nf8 Bgf3 Nh7 Bg2 Bbc5 b6 Bf8 Bgf3 Ne3 Bce4 Nd5 Bg2 Ra7 B4f3 Be3 Rc5 Rf7 b7+ Ka7 Rc7 Bb6 Bef1 Ree7 b8R+ Ka6 Nb7 Ka7 Na2 Qd1 B1e2 Qg1 Nc1 Re3 Kd8 Ree7 Rc8 Bf2 Rd7 Bc5 Rcc7 Ka8 Kc8 Bd4 Rd8 Bb6 Re8
1kb1n1R1/5R1b/1PK1N1QQ/5R2/QBQ3B1/2rP1p1r/4N3/Rqrn2r1 b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 e5 b4 a5 bxa5 h5 gxh5 b4 f4 exf4 a6 b3 a4 b2 a5 Bc5 Nc3 Bb6 axb6 Bb7 axb7 b1B Ra3 Bc2 Ra1 Bf5 Nb1 Bc8 Kf2 Kd7 Kf3 g5 Ke4 c5 h4 f3 d6 f5+ Kd5 c4 e4 c3 d3 c2 e5 f2 e6+ Ke8 h6 g4 h5 f4 d7+ Ke7 h7 f3 h6 g3 Bd2 c1R Rh5 g2 Rf5 Rc6 Nc3 Rc7 Nge2 g1R Na4 Qe8 d8R Nc6 b8R Ne5 Bh3 f1B Nc5 Qb5 Bg4 Nc4 Qa4 Qb1 Rb7 Nb2 Bb4 Nd1 Rdf8 Bg2 Rb8 Bh3 R8f7+ Kd8 Kd6 Rd7+ Kc6 Ra6 Ra8 Nf6 Rb8 Ne8 Ra8 Rf8 h8Q Rb7 Qe5 Rh8 h7 Raa7 Qc3 Rc7+ Kd5 Rc6 Qc4 Rac7 Rb8 Rg8 h8Q Rg5 Qh6 Rh5 Nb3 Rh4 Nbd4 Rh5 Qca2 Rc1 Ra8 R7c3 Qc4 Rg5 Kc6 Rg7 Kb5 Rh7 e7+ Kd7 Ne6 Rh8 Rg5 Rh7 Rg8 Rh8 Ra5 Rh7 Bh5 Bf5 Bg4 Rh8 Qcf4 Bh7 Qc4 Bb7 Kc5+ Kc8 Rb5 Ba6 Kc6 Kb8 Rh5 Bc8 Rhf5 Bg6 Qd2 Rh3 Qh6 Nf6 e8Q Bh7 Qef8 Ne8 Qfg7 Rh5 Qgf6 Rh3 Qfg6
1Qr1N2k/Pq3q2/Q3r2Q/1q2p2R/1n1N2Pn/1K2BN1n/3BRN2/5b1Q b - - 0 1 legal: proof: c4 a5 e4 d5 cxd5 f5 exf5 a4 f6 a3 bxa3 g6 a4 Ra6 a5 Ra8 f4 Bf5 g4 Bd7 f5 Bc8 f7+ Kd7 f6 Bh6 Bd3 Bf4 Be4 Bg3+ hxg3 Nh6 Bc2 Ng8 Bf5+ gxf5 f8B Ke8 d4 Kf7 Kd2 b5 Kc3 e5 a4 h5 g5 c5 g4 f4 d6 f3 a6 h4 d5 b4+ Kb3 h3 a7 f2 a5 f1N d7 h2 a6 Bb7 d6 Bg2 Nh3 Ne7 g6+ Kg8 g7 Qe8 d8Q Nd5 d7 Rh6 Ra2 Nfe3 Re2 Bf1 Nf2 Ng2 Bd2 Nc6 Qb8 Nh4 d8N Qf7 Ne6 Nf4 Be7+ Kh7 g8N Kh8 Bf8 Rg6 Bh6 Nh3 Bhe3 Rh6 Qc1 Rg6 Qc4 Rh6 Nd4 Rg6 Qd8 Rc8 a8Q Rh6 a7 Rg6 Ka4 b3 Qa6 b2 Qd6 c4 Qdb8 c3 Ka3 Qd5 f7 c2 f8Q c1Q Qf4 Qf7 Nf6 Nb4 Ne8 Re6 Kb3 Qcc7 Bc1 Qc5 Nd2 Qb5 N2f3 Qbb7 Bcd2 Qb5 Rg1 h1Q Rg2 Qbb7 Rh2 b1Q+ Ka4 Qbg6 Kb3 Qb5 Q8c6 Qh6 Qc1 Bg2 Qg1 Bf1 Qg2 Qg1 Qh1 Qg2 Qf5 Ng6 Nh4 Qgb7 Nhf3 Nhf4 Rh5 Nh3 Qf4 Nh4 Qxh6+
5B1Q/1rNq3b/N6B/1bK1B2Q/Rn4P1/pNkP1n1p/1N2bRn1/6B1 b - - 0 1 legal: proof: b4 d5 g4 f5 a4 e5 f4 b5 axb5 d4 fxe5 c6 b6 a6 e6 d3 b5 f4 cxd3 Ra7 d4 Qg5 d5 Ra8 d6 Qd8 b7 a5 b6 Bd7 Bg2 Bc8 Bd5 Qf6 Bb3 Qd8 Bc4 Na6 Qa4 Qg5 Bb5 Bd7 Kd1 Kd8 Qe4 Be7 Qg6 Rc8 Qh6 Nb8 Bd3 Rc7 Bb5 Bf8 Qh3 Bc8 Qg3 Ke8 Ke1 Qd8 Qb3 Rf7 Qd1 Rf5 gxf5 cxb5 Ba3 g5 Bb2 g4 Bc1 g3 Nc3 g2 Nb1 Be7 Qa4 Bg5 Kd1 Qe7 Kc2 Qd7 Kc3 Qd8 Qd1 Be7 Kc2 Bh4 Nh3 Qd7 Ng1 Bg3 hxg3 Ne7 Qf1 Rf8 Kd1 Qd8 Ke1 Rg8 Kf2 Rf8 Qd1 Rh8 Ke1 Ng8 Kf2 h5 e4 f3 Ke3 h4 Kd4 b4 d7+ Ke7 f6+ Kd6 e5+ Kc6 f7 Kb5 f8B b3 d3 h3 e7 Kb4 e8N+ Ne7 e6 b2 Nc7 a4 Na3 b1B Bch6 f2 Nc4 f1B Nb2 Bc2 Nf3 g1N Rh2 Na6 b8B Nc5 b7 Nd5 e7 Be2 e8Q Ne3 Rf2 Ng2 g4 Rg8 Qh5 Rg7 Qb1 Qe7 d8B Na6 Ra3 Rh7 Qa1 Bf5 Kd5 Rf7 Nd4 Bh7 Ba7 Nf3 b8N Bb3+ Kc6 Kc3 Kb6 Qe5 Bf6 Qd5 Be5 Nb4 Nba6 Qd7 Kc5 Re7 Qb1 Rg7 Ra1 Be6 Qa2 Bef5 Qg8 Bfg6 Qh8 Be8 Raf1 a3 Re1 Bf1 Re4 Be2 Nde6+ Nd4 Rff4 Rg6 Qg5 Nc2 Qh5 Qd5+ Kb6 Bb5 Rf3 Kb3 Rf1 Nf3 Ra4 Qd7 Kc5 Qe8 Kd6 Nb4 Bg1 Qd7+ Kc5 Rf6 Nd4+ Kc3 Rf2 Rb6 Rf1 Rb8 Rf2 Rb7 Nb3+
1R3rnQ/nNN2kpP/2B2q2/1p2Pr2/4BqbR/R7/1n1NQ2N/1KR5 b - - 0 1 legal: proof: g4 a5 b4 d5 bxa5 b5 c4 h5 cxd5 e5 gxh5 c6 a4 Qh4 a6 Bc5 a5 Bb6 axb6 Qg5 f4 Qd8 Ba3 c5 Bb4 cxb4 fxe5 Ke7 Bh3 Kf8 Bf1 Ke8 e4 f5 h4 f4 d4 f3 Kd2 f2 Kc1 b3 h6 Bf5 a7 Qd7 b7 Rh7 d6 Ne7 e6 Nbc6 b8R+ Qd8 h5 Bg6 e5 Bf7 d5 Nd4 d7+ Kf8 d6 Nc2 Bg2 f1N Bc6 Qe8 d8R Na3 d7 Nc8 Qe2 Ng3 Nd2 Nc4 Rh4 b2+ Kb1 Ne4 Ra3 Nf6 Ngf3 Ng8 Nh2 Bg6+ Be4 Bf5 e7+ Kf7 Ka2 Na5 Kb1 Qf8 e8N Nc4 Nc7 Bg4 Bc6 Rh8 h7 Qd6 h6 Qf6 Rb6 Rb8 a8B Na7 Rc8 Rb7 Rb8 Qf4 Rba6 Rb6 Be4 Rf6 Bac6 Rf5 d8N+ Kf8 Nb7+ Kf7 Kc2 b1Q+ Kc3 Qb4+ Kc2 Qc5 Kb1 Qb6 Rc3 Nb2 Rc1 Ne7 Ra1 Rf8 h8Q Ng8 h7 Qa6 Ra3 Qb6 Bd7 Qf6 Bdc6
1k6/q3BR2/q2pb1P1/1QBN1NP1/1pQb3n/2rQ4/3pB3/QK2B1qR b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 c5 a4 b5 d4 cxd4 e4 f4 a6 f3 a7 Qc7 a5 Nc6 Nxf3 Rb8 a6 Qd8 Ng1 Na5 Rxa5 Rb6 Ra2 Rf6 Ra1 Rf5 exf5 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 e5 a8Q h5 g4 b4 c4 h4 Kc2 h3 f4 e4 f6 e3 a7 e2 f7+ Ke7 g6 Kd6 g5 Kc7 c5 e1Q c6 h2 f5 Qee7 f6 Rh4 Bd2 Qc5+ Nc3 d3+ Kb1 Qd4 Nge2 Ba6 Be1 Rh6 Ng3 Qc8 Be2 Bd6 f8B Ne7 f7 Be5 Nf5 Rh3 Rf1 Qb7 Qe8 h1Q a8Q Bc4 Qa3 Qc8 Nd5+ Kb8 Qc3 d2 Qd3 Qhg1 c7+ Kb7 Rf4 Qa7 Rf3 Qca8 Qc1 Qa6 c8Q+ Ka7 Qc6 Bd4 Qec8 Bb3 Qcb5 Qb7 Q8c4 Kb8 Ng3 Nf5 Bc5 d6 f8B Nh4 Rf7 Qbb6 Nf5 Rg3 Be7 Qbb7 Qdc2 Rc3 Q2d3 Qbb6 Qb2 Qa7 Ra2 Qbb7 Qa1 Qa6 Rc2 Qbb6 Rc1 Qa7 Qd7 Qba6 Qdb5+ Q7b7 Bg3 Bg7 Qg4 Qh1 Nf4 Be6 Nd5 Qg2 Qgc4 Bd4 Rh1 Qg1+ Be1 Qbb6 Qd7 Qba7 Qdb5+
1q1b1R2/n2nr2Q/1P3q1n/3QQq1B/N4R2/P2b3N/2rBb2K/1QBk2B1 b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 d5 cxd5 Nh6 g4 Ng8 gxh5 Rh6 Qb3 Rh7 Qd1 Rh8 b4 a5 b5 Rh6 Qb3 Rh7 Qb4 Rh8 Nc3 axb4 Na4 Qd6 Nc5 Qd7 Nxb7 Qd8 h4 Kd7 d4 e5 f4 c5 Kf2 g5 Kg2 e4 b6 e3 d6 Kc6 f6 Kd5 a3 Ke4 d5 b3 f5 e2 h6 Kd3 d7 Kc2 h7 e1N+ Kh2 b2 f7 b1B d6 c4 f6 c3 h5 g4 h6 Kd1 Nc5 c2 Nh3 Ra6 Na4 Be7 f8Q Nc6 f7 Na7 Bc4 Ra5 Rf1 Ba6 Rf4 Qb8 d8Q Rc5 d7 Nd3 Qg7 Ne5 f8Q Bh4 Bf7 Be2 Bh5 Rc8 Bd2 c1Q Qb4 Bbd3 Qb1 Rc2 Qc7 Bf6 d8Q Nd7 Qe5 Bg5 Qf7 Bh4 Qdc7 Bd8 Qfd5 g3+ Kh1 g2+ Kh2 Ne7 Qcb7 Rf8 h8B Ng8 h7 Nh6 Bf6 Rh8 Bg5 Re8 h8B Re7 Ra2 Qd6 Rf8 Qf6 Rb2 Qf5 Rb4 Qf6 Rf4 Qf5 Qb4 Qa1 Bc1 Qd4 Qb1 Qc3 Rh4 Qc8 Bgd2 Qb8 Rf4 Qf6 Qee4 Qf5 Bd4 Qf6 Qh7 Qf5 Qe5 Qf6 Kg3 g1Q+ Qg2 Qe1+ Kh2 Qf1 Qgd5 Qf3 Bc5 Qg4 Bd4 Qgf5 Bg1
2Q1Q2K/1bR4P/5B1Q/2k1BP2/1n1R1n1r/1nN2NNb/nNbQ1nr1/6q1 b - - 0 1 illegal: No possible last move, all moves rejected
BQ2br2/1Rb3P1/2r1B2Q/q1k2R2/qq1N3B/3Q1K1N/1qnQ3P/1n1Bq3 b - - 0 1 legal: proof: c4 e5 b4 b5 a4 h5 axb5 d5 cxd5 e4 Ra3 g6 Rh3 h4 Qc2 e3 Qf5 gxf5 fxe3 f4 e4 Ke7 e5 Ke8 Rxh4 Qf6 Rh7 Qd8 Kf2 Ke7 g4 a5 d4 c5 e4 a4 e6 Kd6 e5+ Ke7 g5 a3 b6 c4 d6+ Ke8 g6 f5 e7 Kd7 e8B+ Ke6 b7 Kd5 d7 f3 e6 c3 b5 f4 b6 a2 e7 a1Q Na3 c2 Bc4+ Kd6 d5 Ra6 Nb5+ Kc5 d6 Qa4 Nd4 Nf6 Be6 Nc6 b8Q Nd5 b7 Ncb4 Nh3 Nc3 Rf1 Qda5 d8Q Nb1 Bc6 Bd7 e8B Be7 Qbc7 Rf8 b8Q Rb6 Ba8+ Rc6 B8f7 Be8 d7 Bd6 Qcb7 Be5 Qa6 Bc7 Bd2 c1Q Be1 Qca3 Qh4 Q3b3 d8Q Nc2 Qd3 Qb2 Qh6 Q4b4 Bg4 Qba4 Bfe6 Q5b4 Kg1 f2+ Kg2 Qba5 Kf3 Qbb4 Rh1 f1Q+ Bf2 Qg1 Bh4 Qc1 Rf1 Qcb2 Rd7 Nc3 g7 Nb1 Ke4 f3 Rf2 Bf4 Rb7 Bc7 Rf1 f2 Bd1 Bd6 Qdg5+ Be5 Qgd2 Bc7 Rg1 f1Q Rg5+ Kd6 Rf5 Qf2 Rf6 Qe1+ Kf3 Kc5 Rf5+
4r1B1/3k1PrQ/4N2B/b2rN2b/n1R2b2/K3B1P1/1B1RqQ1n/Q2bQ1q1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 d4 h5 Kd2 c5 Kc2 e5 Kb3 e4 f4 h4 b6 h3 b7 h2 d6 e3 g6 e2 g3 e1R d7+ Ke7 f6+ Ke6 d5+ Kd6 f5 Qb6 d8Q+ Bd7 f7 Re3+ Nc3 Qc6 f6 Re5 g7 Qa6 Be3 Ra7 Qe1 Qe2 Rd1 Nh6 g8Q Ng4 Qa5 Na6 Rd2 Be8 b8Q+ Kd7 d6 Rd5 Qbb6 c4+ Ka2 b3+ Ka3 b2 Ne4 b1Q Ng5 c3 Ne6 c2 Qh7 Qbd1 Nf3 c1B+ Qb2 Bg7 f8B Bh5 Qf2 Nc5 Ne5+ Ke8 Rg1 h1B Rg2 Rc7 Rd4 Bd2 Rc4 Nh2 Qa1 Bh6 Q5c3 Bg5 Bh6 Rg7 Qcc1 Ba5 Qcc3 Bf4 Qce1 Qg4 Bd3 Qde2 Bb1 Qg6 Ba2 Na4 Ng4 Nc3 f7+ Kd7 Qff1 Qgd3 Qf5 Qf2 Bb1 Qg1 Rd2 Rd4 Qff2 Re8 Qg6 Bc6 Qf5 Kc8 d7+ Kb8 d8B Kc8 Be7 Kd7 Bf6 Bf3 Qe4 Rd6 Bfd4 Bd1 Ne5+ Ke7 Bc2 Na4+ Bc3 Qe2 Bb2 Rd5 Qg6 Rh7 Qg8 Rg7 Bh7 Kd6 Qh8 Ke7 Bg8 Kd6 Qh7 Ke7 Ng4 Kd7 Ne5+
4RK1B/2N4Q/2Q2N2/5k1n/1PQR1q1q/2PrqQqb/1NnN1bB1/q5b1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 h4 c5 hxg5 cxd4 e4 f4 g6 f3 g7 Ra6 g5 Rc6 g6 Rc5 Qd2 Rg5 Qd1 Rg3 fxg3 Nf6 g4 Ng8 g5 f2+ Ke2 Ba6 Bg2 f1B+ Ke1 Bc8 Bh3 Be2 Bg2 Bg4 Bf1 Bf5 exf5 Qb6 Ra3 Qc7 Ra1 Qd8 Kd2 h5 Kd3 d5 b4 Kd7 b6 e5 f6 Ke6 c3 a4 f7 h4 b7 h3 Qe2 a3 Qd2 h2 Ne2 a2 Nf4+ Kf5 Bg2 Bc5 f8Q+ Qf6 Re1 Nc6 b8N h1Q Na6 Qh4 Nc7 Qg3+ Qe3 Rh3 Qe8 Bd7 Qf3 e4+ Kc2 d3+ Kb3 d2 Nd3+ Qf4 Nb2 d4 Kc4 d1Q Kd5 d3 Be3 d2 Bd4 Qe2 Qc8 d1Q Nd2 Qc2 Rad1 a1Q Be5 e3 Qa8 Na7 Qc6 Nb5 Bd4 Na3 Be5 Nh6 g8N Ng4 g7 Qcd3+ Bd4 Ba7 g6 Qh4 Nf6 Nc2 g8Q Qef2 g7 e2 Qf7 Qde3 g8Q Qfg3 Be5 Bd4 Kd6 Bb6 Ke7 Ba7 Rg1 e1B Kf8 Bf2 Rge1 Bc8 Qfc4 Bb6 Nd7 Nf6 Re2 Nh5 Nf6 Be6 Qh7+ Kg5 Qfd5 Qef3 Nb5 Be1 Nf1 Qh2 Nc7 Bg1 Rd4 Bef2 Nd2 Q3e4 Re1 Rd3 Re3 Bf5 Ng4 Q2g3 Bh8 Qef3 Re8 Q3e3 Qf3 Bd7+ Nf6 Bh3 Qe7 Kf5 Qh7+
r3k2b/QQ6/1Br1q1qP/3N2qB/2RnB2q/nB5P/4N1Q1/n2qQRK1 b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 Bc5 g4 Bf8 b6 h5 gxh5 a5 b3 a4 Bh3 a3 Bg2 Bd7 Bf1 Ba4 bxa4 Qg5 Bg2 Qf6 Bf1 Qd8 Kf2 g5 d4 f5 e4 c5 d6 f3 d5 g4 h6 c4 a5 a2 e5 f4 b7 c3 h3 c2 e6 Nc6 b8Q Be7 a6 Bf8 e7 Nf6 a7 Rg8 Qb7 Bg7 Be3 c1Q Ne2 g3+ Kg1 g2 Nbc3 Ng4 Qe1 Bh8 Bb6 Nd4 Rh2 Rc8 a8B Ne3 Rh1 Qc2 Rc1 a1N Qa7 Nc4 d7+ Kf7 d6 Rc6 Bb7 Qg6 Nd5 Na3 e8B+ Kf8 Rc5 Qh4 d8Q Qe6 d7 f2+ Kh2 f3 Qc7 Qg5 Bh5 Qgg6 Qg3 Kf7 Qg4 Ra8 Rc4 Kf8 d8Q+ Kf7 Qc7+ Ke8 Kg3 g1Q+ Bg2 f1Q Ba6 f2 Qcb7 Rb8 Bb5 Ra8 Ba4 Bg7 Bb3 Bh8 Qb4 Qb1 Qe1 f1Q Qg5 Qge3+ Kh2 Qff6 Be4 Qd1 Qg2 Qh4 Rf1 Qeg5 Kg1
1nN2Nn1/1Pn1Q1q1/PB4b1/2bn1Bbr/n1R1B1KR/1bQN4/4k3/B2N4 b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 f5 e4 d5 exf5 b5 axb5 a4 cxd5 Ra5 bxa5 Qd7 Be2 Qd6 Bf1 Qd8 Ke2 Kd7 Kf3 Kd6 d4 h5 g4 e5 b6 c5 g5 c4 a6 a3 f6 c3 g6 a2 g7 h3 f7 c2 b7 h2 Nh3 h4 Bd3 Qg5 Qd2 Rh5 Nf4 h3 Be4 Bf5 Qc3 Bg6 Bb2 c1B Nd3 Be3 Rc1 h1N Rc2 Qh6 Kg4 h2 f4 Ng3 f5 h1B f6 Bg5 Rc1 Be7 f8N Ne2 f7 Nf4 Nd7 Ne6 f8N Nc7 Nb6 Qh7 Bf5 e4 Rc2 e3 Rh2 e2 Rh4 e1N Be4 Bef6 Bf5 Ne7 g8B Qg7 Bh7 Nc2 Be4 Ng8 Bf5 Ke7 d6+ Kf7 d5 Be7 d7 Nb4 d8Q Bc5 d6 Bd5 d7 Bb3 Nc8 Nbd5 Qc1 Bc2 Nc3 Bb3 Qe8+ Kf6 Rb1 a1N Nd1+ Nc3 Qee3 Nc2 Ba1 Nb4 Qc2 Nbd5 Rc1 Bd4 Qcd2 Na4 Rc3 Bc5 Be4 Be8 Bhf5 Bg6 d8B+ Qe7 Nb4 Ke5 Qee2 Qg7 Nd3+ Kd4 Qc2 Na8 Bb6 Nac7 Bh1 Qh8 Qe7 Qf6 Bhe4 Qg7 N1b2 Ke3 Rc4 Ndc3 Qc1+ Ke2 Nd1 N3d5 Qc3
1n5b/qB2qQ1Q/NN1R1q2/1b2R1BP/3n1B2/RPnkBb2/b1R2b1K/8 b - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 h5 g4 a5 f4 e5 Qc2 exf4 Qd1 Ra6 Bg2 Rg6 Bf1 h4 h3 Rh5 gxh5 g4 Qb3 g3 Qd1 Rg4 hxg4 Qd6 Nc3 Qe7 Nb1 Qd8 e4 Ke7 d4 Kd6 e5+ Ke7 e6 Kf6 b6 c5 b7 h3 e7 c4 e8R h2 d6 g2 Kf2 a4 d7 f3 Kg3 c3 d5 c2 g5+ Kf5 g6 a3 d6 f2 g7 a2 Ba6 f1B Ne2 g1B Nbc3 Nf6 g8Q Nd5 Nf4 Qe7 d8B Be6 d7 Bg7 Nd3 Bh8 Be3 c1N Nb4 Bb5 Na4 Ke4 Qh7+ f5 Qb3 Nc3 Nb6 Bf2+ Kh3 N1e2 Rhc1 h1B Kh2 Bf7 Rc2 Bf3 Qc4+ Nd4 b3 Bg6 Qcf7 f4 Bc7 Bf5 d8R Bg6 Rd6 Bf5 Rf1 a1Q Bd8 Qa5 Ra1 Bg6 N4d5 Kd3 Ra3 Bge4 Nd7 Qb6 Nc7 Qa7 Nb6 Bd1 Rg8 f3 Rg5 Be2 Re5 Bd1 Rb2 Bc2 Rba2 Bb1 Re2 Ba2 Rc2 Qd7 Bdg5 Qe7 Rc5 Bh4 Re5 f2 Na4 f1Q Nb6 Nd7 b8B Qff6 Bb7 Bf2 Qh6 Bd5 Na6 Bf3 Bc7 Nb8 Qhh7+ Qf5 Bd8 Qd7 Bdf6 Qe7 Bgf4 Qg6 B6g5 Qf5 Re4 Qff6 Re5+
8/2k1b2B/3R1N2/KQb2RRp/2bNrn1Q/QP2Br1n/1P2qq2/1QR2n2 b - - 0 1 legal: proof: c4 b5 e4 g5 h4 f5 hxg5 c5 exf5 b4 d4 d5 cxd5 b3 axb3 cxd4 Kd2 Kd7 f4 h5 g4 e5 g6 a5 d6 e4 g7 a4 f6 a3 f5 a2 f7 d3 Kc3 e3 Kb4 d2 f6 e2 g5 e1B g6 Bh4 Bd3 Qe8 Nf3 Ra6 Nc3 Nh6 g8Q Ng4 g7 Nf2 Bh7 Qe2 Nd5 Nh3 Nd4 Kd8 Rf1 Be6 Rf5 Nd7 Qe1 d1Q Be3 Nb6 Rc1 a1N Qf1 Qf2 Qb5 Ra7 Rg5 Re7 d7 Qdf1 Ka5 Nc2 Rg6 Re8 Rg5 Bd6 f8R Q1e2 f7 Bc5 Nf6 Kc7 d8R Nd5 Rd6 Re7 Bg6 Re8 Qh7 Ndf4 g8Q Bc4 Bd3 Re4 Qgg6 Re8 Qe4 Rg8 Qh1 Re4 Qg6 Ne1 Qf5 Nf3 Qg4 Nh2 Qf1 Re6 Bh7 Re4 Qd1 Rh8 Qd3 Nf1 Qb1 Bg3 Qh4 Bh2 Rfd8 Rf8 Rdd5 Be7 R8d6 Bg1 Rde5 Rg8 Rgf5 Rg3 f8Q Rf3 Rg5 Nh2 Ref5 Nf1 Qa8 Qfe1+ Ka6 Q1f2 Nc6 Nd5 Bf4 Qg3 Bd2 Bc5 Nd4 Qgf2 Bf4 Ba3 Be3 Ndf4 Qa7+ Kc8 Kb6 Bb4 Qaa1 Bc5+ Ka5 Kc7 Qa3
N5Nb/1Kb3q1/1P3pk1/1R4n1/3NBr2/2R1BNqP/Qn3R2/r1Rr1bQ1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 g5 Kf3 c5 Ke4 g4 d4 g3 b6 c4 a6 f3 h3 f2 a7 g2 h6 c3 d6 c2 Kd5 Qf6 e4 Nc6 e5 Qf5 d7+ Ke7 d8R Bd7 h7 Nb8 Nc3 Qg6 e6 Kf6 e7 Na6 e8N+ Kf5 Rb1 Qg4 Rc8 Be7 Be3 c1B Nb5 Bd6 Rc3 Bb2 Nf6 Qg7 Nf3 g1Q Bg2 Nh6 Ng8 f1R Rbc1 Nc5 Rh2 Rf8 a8N Kg6 Qe1 Bf5 Kc6 Nd3 d5 Bc7 d6 Bg4 Bh1 Qg3 d7 Be6 d8R Bc4 Qe2 Rd1 Nbd4 Ba1 Qf2 Nb2 Qg1 Bf1 Rd7 Nf5 Rhc2 Nd6 Rf2 Ne4 Rd5 Ng5 Rb5 Rb8 Nh6 Rhf8 h8Q Rb7 Ng8 Ra7 Nf5 Ra4 Kb7 Rf4 N5d4 Re8 Bd2 Ree1 Be3 f6 R1c2 Rb1 Nh6 Qh7 Ne6 Red1 Rc1 Nd3 Re5 Bb2 Rb5 Ba3 Nd2 Bf8 Nd4 Ra1 Qg8+ Bg7 Qa2 Bh8 Ng8 Qg7 Bd5 Nb2 N2f3 Qf7 Bc6 Qg7 Be4+
R1nNB2B/1pr3R1/1n1q1n2/5Q2/1r1QB1P1/3bK2P/QNk1b1Qb/3Bn3 b - - 0 1 illegal: No possible last move
1r4q1/P3Rr1p/BRK1b2n/1n1B2n1/1Q4NB/1NQ1B1Q1/b1P3nb/1Q4k1 b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 hxg5 a5 d4 Na6 dxc5 Nb8 b4 b5 cxb6 axb4 Kd2 Kf7 Ke3 d5 Kd4 e6 a4 b3 f4 b2 g4 Nd7 b7 Nb6 b8B Kg7 f6+ Kg6 f5+ Kf7 a5 Ba3 g6+ Kf8 f7 Kg7 g5 Nc4 a6 Nh6 a7 Qg8 Nd2 b1B Bg3 Ba2 Rb1 Bd6 Rb6 Rb8 Nh3 Na3 Bh4 Bh2 Kc5 d4 Nf2 e5 Kc6 d3 Nb3 e4 Ng4 d2 Ba6 e3 Re1 Nb5 Qf3 e2 Qc3+ Kf8 g7+ Ke7 f6+ Ke6 f8Q Kf5 g6 Ke4 f7 d1N Qa3 Be6 f8Q Ne3 Qfb4+ Kf3 Qab2 Kg2 Qb1 Rb7 Qbc5 Rf7 Q5b4 Qb8 g8Q Qg3 Rf1 e1N g7 Nf3 Re1 Ng5 Qb8 Rhf8 g8B Rc8+ Qc7 Rb8 Re2+ Kg1 Q7e5 Qf2 Qg3+ Ng2 Re3 Rd7 Re2 Qf8 Bf7 Qg8 Re3 Bf5 Bd5 Rf7 Re7 Be6 Be3#
N3n2q/1R2N2B/1qR1r1RN/b7/3NR1Q1/Bqn1K1pq/k1b1P1rP/2Q5 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 axb5 d4 f4 exf4 c3 Ba3 cxd4 Bd6 d5 Bf8 Kf2 Ke7 d4 Kd6 h6 c5 h7 g5 a6 f5 a7 f3 b6 f4 b7 c4 Bd2 c3 Ra3 g4 Bh3 c2 Rc3 Ne7 Qc1 Nd7 b8R Qb6 Rb7 Rg8 h8R Nf6 Rh4 Bf5 Be1 Re8 a8N Rg5 Rc8 Rg6 Nc3 Bg7 Rc5 Rg8 Rc4 Ne8 Rh6 Re6 Rg6 Bf6 Ra4 Nc6 Bd2 Bd8 Rb4 Bc7 Rc4 Nb4 Be3 Kd7 d6 Na2 Nd5 Nc3 Ne7 Rg7 d5 Be4 Qd1 c1Q Bc5 Bc2 Re4 Qcb1 Qc1 Q6b3 Ba3 Qa1 Ke1 f2+ Kd2 f1Q Nf3 Qg1 Nd4 f3 Bg2 f2 Ke3 g3 Bh3 Rf7 Bf5 f1Q+ Kd2 Qgg2 Ke3 Qh3 Rg1 Qh8 Rh1 Qfh3 Rf1 Kd8 d7 Qab1 Rf4 Bb6 Rh4 Ba5 Rhh6 Re5 Rc6 Re6 Bh7 Rf2 Rg6 Qb6 Nf5 Q1b4 Nh6 Ke7 d8N+ Nc7 Rg5 Rg2 d6+ Kf6 d7 Ne8 Rg6+ Ke7 Rcc7 Kd6 Nc6 Kd5 d8Q+ Kc4 Qh4 Qb3 Qg4 Qg7 Bf8 Qh8 Ne7+ Kb4 Rc6 Ka4 Qd2 Ka3 Qc1+ Ka2 Nd5 Qb1 Ba3 Q1b3 Ne7
B1BQ4/2R2Q2/2K2RRP/2Q1p2r/NP2n3/k1R1br1q/qq5Q/n2Nq2b b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 h6 g4 Bb7 g6 Na6 g7 Bc8 g5 Nb8 g6 Bb7 b3 Nc6 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kb4 d4 a5 d6 c5 Kd5 a4 d7 g4 f6 a3 f7 c4 h5 c3 b6 g3 b7 g2 h6 c2 Qf3 c1Q Ba6 a2 Rh3 Qb2 Ne2 g1Q Nbc3 Qf1 Rc1 a1Q Nd1 Qba2 Nec3 Qaf2 Na4 Qh4 Rc7 Qe8 d8R Qff2 Rd6 Qfa2 Rf6 Nc6 b8Q+ Ka3 Rg3 Bf5 Bc8 Q1b2 Qf2 Bh3 Rc3 Ra5+ Qb5 Rh7 Qh2 Bg2+ Kc5 Qg3 d5 Nb4 d6 Nc2 d7 Na1 d8Q Bh1 Kb6 Qh3 b4+ Qab3 Qf1 Rh5 Qf5 e6 Qc5 Bd6 f8Q Bf4 Qfe7 Be3 Qf7 Qe7 Kb5 e5 Kb6 Qd6+ Kb5 Qdd2 Kb6 Qe1 Kb5 Ne7 g8R Nf5 g7 Ng3 Kb6 Ne4 Kc6 Qf5 Rg6 Rh8 Rf8 Qh3 g8B Rh7 Qf3 Rg7 Bd5 Rf7 Qff2 Rf3 Rff6 Rg3 Qf5 Rf3 Qfd7 Qa2 Qf7 Qb2 Kb6 Qa2 Ba8 Qb2 Kc6 Qa2 Rc4 Qbb2 Rc3+
3NbRN1/1qP1Qp1P/qknr2n1/r5R1/2Bb2b1/1Q1R1NK1/1B6/5bRN b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 c5 axb5 e4 d4 cxd4 f3 Ba3 fxe4 Be7 e5 Bf8 Kf2 d5 h4 Kd7 e4 Kc7 c4 g5 b6+ Kc6 a6 d3 c5 d2 h6 g4 b7 d4 h5 d3 a7 Ne7 e6 Nd7 b8N+ Kb5 e5 Rh7 c6 Rg7 c7 Nc5 h7 Na4 h8R Qd7 h6 Rg6 h7 Qc6 Kg3 Qc4 Rh5 Nb6 Nf3 Ba6 Nc6 Nbc8 Nd8 Kb6 Nc3 Nc6 e7 Bg7 e8Q Rd6 e6 N8e7 Ne4 Bd4 Rf8 Ng6 e7 Bb5 Qb3 d1B Qd7 d2 e8N Be2 Rg5 d1B N8f6 Qa4 Rb1 Qa6 Bb2 Bc4 Nf2 Bd3 Kg2 g3 Ng8 Bc4 Kh3 g2 Qe7 g1Q Nh1 Qb7 Bd3 Qf1+ Kg3 Be2 Ra1 Be6 Re1 Bg4 Bc4 Bd3 Re3 Qa1 Re1 Qaa6 Rg1 Bf1 Ne6 Rad8 a8R Rd5 Rc8 R8d6 Rcd8 Rf5 Qe3 Ba4 Rd7 Ra5 Nd8 Re6 Rdd5 Rd6 Qc3 Nb4 Qc2 Be8 Qd3 Nc6 Qd1 Bc5 Rd3 Bd4 Qb3+
8/QPN1k3/bB2Rr2/1pn5/1n2qBbN/b2rb3/qQPR3Q/B1BQ1K2 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 c4 a4 c3 dxc3 Rh6 c4 Rh7 c5 Rh8 a5 b6 axb6 a6 b7 Qc7 Ke2 Qb6 Ke1 Qd8 b4 Nh6 b5 Ng8 b6 Kf7 Bc4+ Ke8 Bb5 axb5 f4 e5 h4 d5 c6 g5 c7 d4 f6 e4 h6 g4 h5 e3 h7 g3 f5 g2 f7+ Kd7 f6 e2 h6 d3 Nc3 Bd6 f8B Ra6 f7 Bh2 Bc5 Ra8 f8B Ra4 Bg7 Rd4 Nd5 Nc6 b8B Ba6 b7 Nf6 Nf3 g1B Nh4 Rf8 h8Q Ne4 h7 Rf6 Bb6 Bd6 Rh2 Be3 Ra4 Bf8 c8Q+ Ke8 Nc7+ Ke7 Rc4 Nb4 Rc6 Qd5 Rd6 Nc5 Re6+ Kf7 Qd8 Qa2 Qd6 Rd5 Rf2 Be7 Qh2 Rd6 Qc8 Bf8 h8Q Rd5 Rc6 Ke7 Qch3 Rd7 Re6+ Kf7 Qh5+ Kg8 Qd2 Bh6 Re4 Ne6 Rg4 Nd5 Be3 Ba3 Q5e5 Kf7 Na8 Rf4 Rg6 Nb4 Bc5 Rd6 Qhe3 Ke7 Bd4 Rd7 Ba1 Rf8 Qa7 Rd6 Bc7 Rf5 Qed4 Nc5 Be5 Rd7 Rc6 Rf6 Bb6 Bf4 Rg2 Rd5 Q2c3 d2+ Kf2 d1B Nc7 Rd8 Qb2 Rd7 Qd2 Rd3 Kg1 Bh6 Rf2 e1Q+ Kg2 Bh5 Qd1 Bg5 Rd2 Qe4+ Kg1 Bf3 Kf1 Be3 Bf4 Bg4 Re6+
8/bP1k3B/3q1R1r/np1Q1RB1/2b2br1/R3QbNB/1qP1RB2/1nNK4 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 e4 c5 exf5 Nh6 d4 cxd4 a4 Ng4 a6 Qb6 a5 Nf6 axb6 Ng8 h4 d5 f4 g5 a7 e5 f6 d3 h6 d4 f5 e4 h7 g4 h5 g3 f7+ Kd8 h6 g2 f6 e3 Nd2 e2 Nb3 Nc6 Rh2 Na5 Ra3 Be6 Bg5 Ne7 Nc1 Bc4 Qd2 Rb8 a8B Nd5 Qe3 Nc3 Be4 Nb1 b7 Bd6 f8R+ Kd7 f7 Bf4 Bg6 Rg8 h8B Ra8 h7 Ra6 Be4 Rh6 Bhf6 Rg7 h8Q Rgg6 Qg8 d2+ Kf2 d1B Ke1 d3 Bd4 Rg7 Bh7 Rgg6 Re8 Rg7 f8R Rgg6 Re6 d2+ Kf2 Rg7 Rf5 Rgg6 Kf3 e1Q+ Nge2 g1B Bh3 Bf2 Ref6 Qg1 Bh4 Rg4 Bg5 Qf1 Ke4 Bg1 Ng3 Qe1 Bb6 Bf3+ Kd4 d1Q+ Rd2 Bd3 Re2 Qb4+ Qc4 Qd6+ Qd5 Qe1 Ba7 Bc4 Bc5 Qb4 Bb6 Ba2+ Kd3 Qb2 Bc5 Nc3 Kd2 Nb1+ Kd1 Bc4 Bb4 Bf2 Be1 Bg1 Qe4 Bge3 Bf2 Ba7 Qe3
1Rr4Q/1bRnR2p/5NQn/rk1P3q/B2R1K2/2qq4/1rN1P3/n4QQB b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bg4 b3 Bc8 h4 Ne7 g4 Rg8 Ba3 Nd7 Bc5 Ba6 Be3 Bc8 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Nh3 Rh8 Ng1 Ng8 Kf2 Kd7 Kf3 f5 d4 c5 g7 a5 b6 a4 b7 c4 e6+ Kc7 d6+ Kb6 e7 c3 e8Q c2 b4 c1R b5 a3 d7 a2 g6 Rc7 Nh3 Rc1 Ng5 Nf6 g8Q Nh5 g7 Ra7 Bg2 Qc7 d8R Nd7 b8Q+ Bb7+ Ne4 Ng3 Qf1 Ra5 Na3 Rb1 Nc2 Rb2 Qg6+ Qd6 Rc1 a1N Rg1 Qc6 Bh1 Qf6 Kf2 f3 Ke3 f2 Kf4 Qc6 Nf6 Qc3 Re8 Qd3 Re7 Qc3 Qb3 Rc8 g8B Qd3 Rg2 Qc3 Qg1 f1Q+ Rf2 Qd1 Qbf7 Qdd3 Qa8 Kc7 b6+ Kd6 Rf3 Kc6 Qf8 Kb5 Bb3 Rba2 d5 Rb2 Kg5 f4 Rf2 f3 Kf4 Bc6 b7 Nf5 b8R+ Bb7 Rg2 f2 Rg4 Nh6 Qh8 Rd8 Qa7 f1Q+ Qaf2 Qfh3 Qff1 Qc6 Ne1 Qc8 Rc7 Qh5 Nc2 Rg8 Rg3 Rf8 Rge3 Rg8 R3e4 Re8 Rd4 Rd8 Rc3 Qc5 Rcc4 Rc8 Rc3 Qb4 Rc7 Qbc3 Ba4+
q3Nb1n/5Pr1/B5N1/3k1Qbb/p1RP1n1R/3b1BK1/2B5/N1bQBNn1 b - - 0 1 illegal: No possible last move
1R2Nq2/1NQ1Q3/R4nk1/K1nQp3/3BP1qQ/6bB/nN1rNP1n/1nb5 b - - 0 1 legal: proof: c4 a5 b4 f5 g4 fxg4 a4 b5 axb5 d5 cxd5 Qd6 Bg2 Qd7 Bf1 Qd8 h3 g5 Bb2 a4 Nc3 g3 Bc1 g4 Nb1 Ra5 bxa5 g2 Qc2 g3 Qd1 Bg4 hxg4 Qd7 Bb2 Qd6 Bc1 Qd8 d4 Kf7 Kd2 c5 Kc3 e5 e4 h5 d6 a3 d7 h4 a6 c4 g5 h3 g6+ Kf6 a7 a2 a8N h2 g7 Be7 d5 Rh3 d6 Na6 b6 Qf8 d8Q Nc5 Kb4 c3 d7 c2 b7 Kg6 b8Q Bg5 Qbc7 Nf6 Be3 c1N Ne2 g1Q Bd4 g2 Nd2 Rd3 Nc4 Rd2 Ka5 Bf4 Qe7 Bg3 Rb1 a1B d8N Na2 Rb8 Bb2 Nb7 Bc1 Qb3 Nd5 Qh4 Ndc3 Qa3 Nb1 g8Q+ Qg7 Qd5 Qh8 Nc3 Qf8 Be2 Qd1 Bf1 g1N Bh3 Qg4 Ne2 Nf3 Rd1 h1N Nb2 Nh2 Re1 Nd3 Qae7 Nc5 Rf1 Bf4 Rg1 Ng3 Rg2 Nh5 Rg3 Ng7 Rb3 Ne8 Rb6+ Nf6 Ra6 Qf5 Qc8 Qe6 Nc7 Bg3 Ne8 Qg4 Qcc7
B3Qq2/1Q2q3/1bRN2q1/p1nr4/B1Qr1Nq1/k1n3P1/1BP2K2/1Q3RBq b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 f4 f5 fxg5 b5 axb5 Ba6 exf5 Bb7 h3 Be4 Ke2 Bf3+ Ke1 Bg4 hxg4 Qc8 Qd3 Qc7 Qd1 Qd8 b4 h5 g6 e5 f6 d5 g7 Kd7 g3 Kd6 f7 a5 b6 h4 g5 e4 g6 h3 b7 d3 b5 Kc5 b6 Kb4 Nc3 e3 Bb2 d4 Nge2 h2 Ne4 Rh4 Nf4 e2 Qb1 d2+ Kf2 d1Q Nd6 d3 Bg2 Nd7 b8B d2 b7 Ngf6 g8B Nd5 g7 Nc3 Ba7 Nc5 b8Q+ Qb6 Qe8 Rd8 Ba8 Rh5 Qe7 Rd5 Qb7 Rd7 Rf1 h1Q Ra3 Be7 f8Q Bd8 Be6 Qh8 Qe8 Qf8 g8Q e1Q+ Kg2 Qe4+ Kf2 Qg4 Qgf7 Rd4 Bb3 d1Q Ba4 Qee7 Qg8 Qh3 Qe6 Qdg4 Qe2 Qh1 Qd3 Nb5 Rc3 Qbc6 Qe2 Bb6 Qe6 Qce4 Q6f7 Qeg6 Ba1+ Nb3 Rc8 Ka3 Qc4 Nc5 Rc6 Nc3 Bb8 Re4 Nf7 Bc7 Ba7 Rd5 Nd6 Na6 Be3 Red4 Ke1 Qeh7 Bf2 Nc5 Bg1 Bb6 Kf2 Qhe7 Bb2#
QB1r4/3Q2P1/KRqR1BBr/6B1/1QQ1b3/2bqnr2/2p3P1/2N1rkNr b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 f5 f4 b5 fxg5 f4 axb5 Nc6 e4 Nd4 h4 Nf5 h5 Bg7 h6 Bxh6 exf5 Bf8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Ke4 d4 c5 b6 a5 Kb5 e5 b7 h5 b8B a4 g6 h4 d6 c4 g7 a3 d5 c3 f6 h3 d7 h2 f7 a2 d6 f3 Nd2+ Ke3 Bb2 Kf2 Nb3 c2 Bd3 e4 Bf6 e3 Bg6 e2 Qd3 e1R Qc4 Rh6 Rb1 a1Q Nc1 Ne7 Rb2 Qc7 d8B Nf5 d7 Bb7 Rb3 Bc5 f8Q Qd4 Bde7 Ba7 d8Q Be4 Ka6 Ne3 b5 Qc6+ b6 Qd3 Qd7 Kf1 Bd8 f2 Qb4 Qd5 b7 Bd4+ Ba7 Bb2 b8Q Bc3 Bg5 Qc5 Bdf6 Qc7 Q8b7 Rd8 Bb8 Qc5 Qa8 Qc7 Qa5 Qc6+ Rb6 Qe2 Qdd3 Rd1 Be8 Ke1 Bg6 f1R Qd7 Rf3 Qb4 Qf1 Nge2 Kf2 Rg1 h1R Nd4 Qe2 Re1 Qd2 Nde2 Qdd5 Ng1 Qd4 Re2+ Kf1 Qde6 Re1 Qd7 Qd1 Rd2+ Qe2 Rd4 Qd3 Rd6
4N1r1/r1n2rp1/B2qr1R1/QR1R4/2q1B1B1/RPB1N3/1PKQ2b1/r5bk b - - 0 1 legal: proof: f4 e5 c4 d5 cxd5 b5 Nc3 b4 Nb1 b3 axb3 Bd6 Qc2 Bc5 Qd1 Bf8 d4 exf4 g4 c5 Kd2 h5 gxh5 c4 Ke1 Nd7 Qd3 Rh7 Qd1 Nc5 dxc5 Rh8 Kd2 Kd7 h4 f5 e4 a5 c6+ Kd6 e5+ Kc5 e6 Kd4 d6 Ke4 d7 c3+ Kc2 a4 e7 a3 e8B a2 h6 f3 h5 f2 c7 f4 h7 f3 h6 Qf6 d8R Qb6 Qd2 Bd7 c8B Ra4 Bg6+ Bf5 Bfa6 f1R Nh3 f2 Nf4 Nf6 Ne6 Rg8 h8R Re1 h7 f1R Rg1 Bc5 Nc7 Ne8 Rd5 Qd6 Na3 Rf4 Rg3 Bg1 Nc4 Rf2 Rg5 Rff1 Ne3 Kf3+ Rd3 Bh3 Rdd5 Bg2 Bg4+ Kg3 Be4 Kh2 Rg6 Kh1 Rb5 Rf7 Rd5 Nf6 Rb5 Nd5 Ne8 Nc7 Rd5 Ref1 Rb5 R1f6 Rd5 Rgf8 Rg8 Re6 h8Q+ Qh2 Qh7 Ra3 Rh8 Rg8 Qh5 Ra5 Qf5 Ra3 Rh3 Ra4 Rf3 Qd6 Qg5 Ra5 Rff5 Ra3 Rb5 Ra5 Rfd5 Ra3 Kd3 c2 Qa5 Ra4 Bd2 c1Q Bc3 Qf1+ Kc2 Qc4 Rad1 a1R R1d4 Raf1 Rd1 Re1 Ra1 Rb1 Ra3 Rd1 Qb6 Ra1 Qd4 Ra5 Qd2 Ra4 Bc8 Ra8 Ba6 Ra7 Qd8 Na8 Qb6 Nc7 Qa5
3KN2N/2NbR1r1/rrBb3q/RP1nr2b/Bk1B4/4Qp1N/2B1QP2/5q2 b - - 0 1 legal: proof: b4 c5 bxc5 b5 cxb6 e5 a4 g5 d4 Ba6 dxe5 Bc8 c4 Na6 h4 Nc7 c5 Nb5 axb5 gxh4 Kd2 Ke7 Ke3 f5 Kd4 d5 e4 h5 g4 a5 b7 f4 b8Q f3 g5 a4 c6 h3 Kc5 d4 c7 h2 Kc6 d3 g6 d2 e6 a3 e5 a2 g7 h4 Nh3 Ra3 Bd3 Rh6 Bb2 Ra7 Bc2 Rg6 Re1 h1R Nc3 Qd3 Qe2 d1B Qb6 Nf6 g8B Nd5 Qbe3 Rh6 Ba4 Bb3 Bh7 Qd2 Bc2 Bd7+ Kc5 Rg1 c8B Bc4 Bb7 Rg7 Bc6 Ra6 Ne4 Rh5 Neg5 Rb6 Nf7 Bb3 Nhg5 h3 Bd4 h2 Nh3 h1Q Nh8 Qg1 Ng5 Qf1 Nh3 Kd8+ e7+ Kc7 e6 Re5 Qe4 Qh6 Q4e3 Kb8 Kd6 Ka7 Rad1 a1R Rd2 Nc3 Kc7 Nd5+ Kd8 Ba2 e8N Bd6 e7 Bc4 Bab3 Ra6 Ba4 Bd3 Nc7 Bg6 e8N Bf7 Bb2 Bh5 Rd4 Rb7 Ra1 Kb6 Re4+ Ka5 Bd4 Kb4 Ra2 Rbb6 Ra3 Rf5 Re7 Rfg5 Bab3 Rf5 Ra5 Re5 Ba4
B2bQ3/4Q3/n3k1rq/Bp2NrR1/3P1RqQ/8/rnP1n1N1/NNnQ3K b - - 0 1 illegal: No possible last move, all moves rejected
kb1B1q2/R2Nb1R1/K2bBRPr/1Q1nQRP1/N5B1/r3r3/q2p3b/5B2 b - - 0 1 legal: proof: c4 a5 e4 f5 b4 fxe4 h4 g5 hxg5 c5 bxa5 b5 Be2 b4 Bf1 Ba6 d4 Bb5 cxb5 c4 Rh6 Na6 Rh1 Nc5 dxc5 Qc8 Nf3 Qc7 Ng1 Qd8 Kd2 d5 a4 Kd7 g4 Kc7 f4 Kb8 c6 e5 g6 h5 a6 d4 f5 d3 b6 b3 Kc3 h4 f6 e3 c7+ Kc8 a7 Kb7 a5 b2 f7 e4 Qe1 e2 Nf3 h3 Ne5 h2 Nd7 Rh7 Bg5 Be7 f8R e3 Rf5 d2 c8R Qf8 Rc6 Rh8 Rcf6 Rh3 Kd4 c3 Kc4 c2 Kb5 c1B Nc3 Bd6 Na4 Ne7 Ra3 Nd5 a6+ Kc8 Qg3 e1B Qe5 e2 b7+ Kc7 Ka5 b1Q b8Q+ Kc6 Bh4 Bg3 Qb5+ Kc7 Ra1 e1B Ra3 Re8 a8B Qa2 a7 Bf4 Bb7 Beg3 a8B Bb2 Ka6 Re6 Re3 Ba3 Bc8 Re8 Rg1 h1R Rb3 Bh2 Bc6 Ne3 Bf3 Nd5 Rb1 Bfg3 Ra1 Re7 Rf7 Bc5 Rg7 Bf4 B3e2 Ra3 Bf6 Re6 g5 Bb4 Bg4 Bfg3 Nb6+ Kb8 Nd7+ Ka8 Bd8 Re8 Rf6 Bb8 Rg2 Be7 Rgf2 Bbd6 R2f5 Bb8 Qeb2 Bgd6 Qd4 Bg1 Qe5 Rh6 Nc5 Bh2 Be6 Rh4 Nd7 Rh6 Bb6 Rc8 Bd8 Rcc3 Rc1 Rg3 Rc7 Rge3 Ra7+
2RN2q1/N3Q2P/2K1bnNn/N1R3b1/R1QRr3/1b2qq2/1pqkP1B1/B7 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kf3 c5 Ke4 b5 a4 g5 d4 g4 h4 g3 d6+ Ke6 a5 f6 h6 c4 d5+ Kd7 a6 b3 a7 b2 h5 b4 h7 b3 h6 g2 Nf3 g1Q Ra4 c3 Nbd2 b1B+ Qc2 Ba2 Bb2 Be7 Ba1 b2 Rh5 Bb3 Nc4 Qg6+ Kd4 f5 Kc5 f4 Nd4 f3 Nb5 f2 Na5 Bg5 Bg2 f1Q Qe4 c2 Qc4 c1Q e6+ Ke8 e7 Kf7 e8Q+ Kf6 d7 Kf5 d6 Qf3 Qe7 Qce3+ Qd4 Qf8 d8R Bce6 d7 Qfe8 Rc8 Qef7 d8N Nd7+ Kd6 Ndf6 Qc4 Rb8 a8R Qfg7 Na3 Rb4 Nb5 Q7f7 Na7 Qfg7 Qd5+ Kf4 Rc5 Qc2 Rac8 Re4 Qc6 Qec1 Qb5 Ke3 Qc4 Kd2 Kc6 Qg1 Nb5 Qge3 Na7 Bh4 Rhf5 Bg5 Rfe5 Ng4 Rf5 N8f6 Rfe5 Rf8 h8N Qg8 h7 Nh6 Red5+ Rd4 Ng6 Re8 Qg7 Bg4 Qd7 Re4 Qe7 Be6 Rxd4+
n1nK4/3n4/N2n2Q1/1N3RN1/nPbbR1pk/N1B3qB/R2PR1q1/3b2Q1 b - - 0 1 legal: proof: f4 d5 g4 f5 a4 e5 c4 exf4 cxd5 b5 axb5 a6 Qc2 f3 Qd1 f4 h3 g5 Qc2 h5 Qd1 a5 Qc2 Rh7 Qd1 Rf7 h4 Rf5 gxf5 g4 Ra3 Ra6 Ra2 Rg6 Ra1 Rg5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 Kf2 Ke7 e4 c5 b4 a4 e5 a3 g6 h4 e6 Kf6 b6 Kg5 g7 c4 b7 c3 d6 c2 d7 h3 f6 a2 f7 h2 e7 Qc7 d8Q Bd7 e8N+ Ne7 g8N Ba4 Ngf6 Nc8 Bb2 c1N Nh3+ Kh4 Bc3 Nd7 b8R Bg7 f8R Nb3 Nd6 Na5 Na3 Nb7 Ndb5 Nbd6 Ng5 Bh8 Qc1 Bd1 Nd5 Bf6 Rg1 h1Q Qe8 Bg7 Rg2 Bd4+ Qe3 Qh3 Qc2 Qc6 Qg6 Qg3+ Kg1 Qb7 Ndc7 f2+ Kh1 f3 Na6 Qc6 Rf5 Qb7 Ra8 Qc6 Rc1 a1N Rc2 Qb7 Ra2 Nb3 Ra7 Qa8 Rc7 Qd5 Rc4 Nbc5 Qe1 Na4 Qe3 Bf6 Re4 Bd4 Rh2+ Qh3 Bg2 f1B Kg1 Bc4 Kf2 Ncb6 Bf1 Na8 Bg2 Nc8 Bf1 Bg7 Qd4 Bf6 Ke3 f2+ Kf4 Bh8 Bg2 f1N Qg1 Ne3 Bf1 Qd3 Re2 Bd4 Bg2 Qh1 Bh3 Qg2 Rd5 Nc2 Kf5 Qdg3 Ke6 Ne3 Kf7 Nf5 Ke8 Nfd6+ Kd8 Bd3 Rde5 Bc4 Rf5
7r/rP1Q2BQ/b2Q2Rb/6bB/3k2N1/1K1NrQbn/P1rp1R2/3B2Bb b - - 0 1 illegal: No possible last move
2q3b1/5B2/QR1n1N1K/1RP2k2/bRNQQ1RP/4p1bn/2BqQ1rp/3r4 b - - 0 1 illegal: No possible last move, all moves rejected
1Qkq4/B4nP1/1b4R1/Qr1q1rq1/2pBB1Qn/1NN2pQK/4P1Rb/2B5 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 d5 cxd5 g5 a4 Bf5 axb5 Bg6 h3 f5 Ra3 exf4 Ra1 Bh5 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Kf7 Qc2 Ke7 Qd1 Ke8 b4 Kd7 d4 c5 g5 a5 g6 h5 f6 a4 g7 c4 d6 h4 d5 a3 f7 a2 b6 h3 b7 h2 b5 g2 Kf2 Rh6 b6 Ra6 Nf3 g1B+ Kg2 Qe8 Qb3 Re6 Nd4 Bf2 Kh3 Ra5 Bg2 Ra7 Nc3 Nc6 b8Q Nge7 b7 Rg6 Rg1 Rf6 Be4 Ra5 Rg6 Nd8 Qa3 Nf5 Nb3 Be7 f8Q Bb6 Qh8 Rf7 Qh5 Nh4 Qg4+ Rf5 Rb1 Rb5 Qa5 Qf8 Qc7+ Ke8 b8B a1Q Ba7 Nf7 Qb8+ Bed8 d7+ Ke7 Qg3 Bdc7 d8B+ Kd7 Bf6 Qd8 d6 f3 Bd4 h1Q+ Qh2 Qg1 Qg3 Qb2 Qg4 Qd2 Qg3 Ke8 d7+ Ke7 Qg4 Bh2 Qbf4 Qgd1 Qfg3 Qg5 Ra1 Qa8 Rb1 Kd8 Ra1 Qd5 Rb1 Nd6 Ra1 Kc7 d8Q+ Kb7 Qf8 Nf7 Qfd6 Kc8 Qb8+ Kd7 Ba3 Qdd2 Rg1 Qd8 Rg2 Q2g5 Qbd6+ Kc8 Bc1 Qc7 Qdf4 Qcd8 Qb8+
1b2r1kb/2RQP3/1NK1Np2/B2rR3/4B2p/3P1Q2/Rn4qN/1n2RNqb b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 e5 hxg5 b5 f4 exf4 a4 d5 axb5 Ba3 c4 Be7 cxd5 Bf8 Kf2 c5 Kf3 h5 Ke4 h4 g4 f3 g6 f6 d3 f2 a6 c4 d6 c3 Kd5 c2 e4 Qc7 a7 Qe7 g5 Qg7 e5 Rh6 e6 Rh8 b6 Rh6 e7 Nc6 b7 Qh7 b8Q Qg7 Bg2 f1Q Qb5 Rh7 Qf3 Bb7 Ra2 Qh8 g7 Kf7 d7 Nh6 d8N+ Kg8 Bd2 c1B Ba5 Ng4 Ne6 Nf2 Nd2 Re8 a8N Ne4 Nb6 Nc3+ Kc5 Qd1 Nf1 Ne5 Qd7 Nb1 Kb5 Bf4 Kc5 Kf7 g8R Nc4 Rg6 Bc7 Rh6 Qe2 g6+ Kg8 g7 Bb8 Rh5 Nb2 Re5 Rh5 Kb5 Qh6 Kc5 Qc1+ Kb5 Kf7 g8R Bg7 Rh8 Ba8 Rg8 Bh8 Rg4 Qce3 Rc4 Be4 Rcc5 Kg8 Rc7 Bh7 Kc6 Qd4 Qfd5 Be4 Nf3 Qg1 N3h2 Bf3 Bh3 Rg5 Bf5 Qeg2 Qe4 Rg4 Qed5 Rd4 Qe4 Rd5 Qe3 Qg6 Be4 Q6g2 Rc8 Q1f2 Rc7 Qg4 Ng3 Qg6 Rc1 Bh1 Qf3 Qg1 Ngf1 Q6g2 Re1
1kq5/1p1Rr3/3b1PNn/1B1R1RK1/1RPN4/3N4/1NB2pQ1/1nrbqqQ1 b - - 0 1 legal: proof: d4 a5 g4 f5 e4 h5 gxh5 e5 f4 c5 dxc5 Rh7 b4 Nf6 bxa5 Rh6 exf5 Ng8 f6 Rh7 f5 Rh8 Bf4 exf4 Ke2 d5 Kf3 Kd7 Kg4 Kc7 h4 g5 a4 d4 a6 f3 c6 d3 a5 f2 a7 d2 h6 Bb4 f7 Ba3 f8R Qf6 h7 Qg7 h5 Qe7 h6 Bb2 a6 Bg7 Nf3 Bd7 Nd4 Be5 Rh5 Qf7 Na3 Bg7 Nc4 Be6 Rb1 Be5 Rb4 Bd7 Nb2 Ne7 Bb5 Ng8 c4 Bd6 Qg1 Qe8 Nd3 Kc8 c7 Nc6 Qg2 Rb8 a8R Nce7 a7 Nd5 Rf7 Bc6 f6 Nc3 Rd7 d1Q+ Kf5 g4 Kg5 g3 Qg1 Be7 Rd5 g2 Rf5 Kd7 c8B+ Kc7 Rd5 Qd8 Bf5 Qe1 Nb2 Qf1 Bc2 Bd6 Rf5 Qd7 Rd5 Re8 Rd8 Qe1 a8Q Qc8 Qa6 Qf1 Rd7+ Kb8 Rf5 Bf3 Qc6 Re2 Qe4 Nb1 Qd5 Ne7 Qe4 Rd8 h8N Ng8 h7 Nh6 Ng6 Re1 h8N Re8 Rd5 Rc1 Ne5 Re7 Nhg6 Bd1 Ned3 Qe1 Qh2 g1Q+ Qeg2 Qgf1 Qhg1 Qe5+ Kh4 Qe3 Rhf5 Qee1 Kg5
B2R1B1Q/5br1/1K1bbR2/2p1RR2/kN2rPbp/3N2B1/nP3nB1/Q4q2 b - - 0 1 legal: proof: c4 b5 f4 e5 h4 d5 cxd5 f5 a4 g5 axb5 gxh4 e3 Qf6 fxe5 f4 Ra6 f3 Ra1 Qf4 exf4 Bh3 Qb3 Be6 Qd1 Bc8 Kf2 Kd7 Ke3 a5 Kd4 h5 g4 f2 e6+ Kd6 g5 h3 g6 h2 b6 a4 e7 a3 e8R c6 g7 a2 b7 Ra5 Bg2 f1B Nf3 Na6 b8B+ Nc7 Ne5 Bfa6 Nd3 Bc4 Nc3 Nh6 g8B Ra4 Re5 Kd7 d6 Rb4 Kc5 Rh7 B8d5 Bb5 Kb6 c5 Ba8 Re4 Nd5 Rg7 N5b4 Bc4 Rf5 h4 Re1 h1B Re3 Re8 Ree5 Nb5 Bc7 Bf7 Bb8 Kd8 d7 Ng4 Bd6 Nf2 Qg1 Be7 Qe1 Nc3 Qf1 Bf6 Bf8 Be7 Re3 Bb7 Bc6 Ng4 Nf2 Bf6 d4 Rg8 d5 Be7 Ka7 Kc7 Nfd3 Bf3 Bd2 Bc8 Be1 Rg6 Bg3 Nf2 Rae1 Bg4 Re6 Rg8 Bcb7 a1Q+ Ra6 Na2 Rae6 Kd8 Kb6 Qd1 R1e4 Qe2 Qa1 Qf1 Kb5 Kc7 d6+ Kb8 Re2 Ka7 Bg2 Rg6 d8Q Rg7 d7 Bd6 Ref6 Re3 Be7 Re6 Qf8 Re3 d8R Bce6 Qh8 Re5 Ka4 Kb6 Bf8 Re3 Ka3 Kb5 Re1 Kc4 Ka4 Re2 Ka5 Kb3 Kb6 Ka4 Rc1 Re3 Rc4 Re1 Re4 Re3 Ree5 Re2 Qb1 Re4 Qa1
N1kB2qQ/8/1QPPRr2/1nrpN3/K3pN1Q/1r1b3Q/B5R1/1rN1b1n1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 d4 c6 d5 Qc7 d6 Qd8 Nf3 Qb6 Qd5 cxd5 Ne5 Qc7 Nxd7 Qd8 Kd2 g5 Kc3 e5 Kb3 a5 h4 e4 c4 g4 f4 g3 f6 g2 c5 g1R h6 Rh7 c6 Rg5 b6 Qc7 h5 Kd8 f5 Ne7 b7 Rg4 f7 Rhg7 h7 R4g5 h8Q Ng8 f6 Rh7 h6 Ra7 Nc3 Rg3 Ne5 Bd7 Ka4 Rhg7 b4 Rf3 h7 Rf4 b5 Rg3 b6 Be7 f8N Bh3 f7 Nh6 Ne2 Rf6 Ra2 Rb3 Bg5 Qc8 Nc1 Na6 b8N Ng4 b7 Nh2 Bc4 Nc7 Na6 Nf3 b8Q Nb5 Rg2 Ng1 Nc7 Bg4 Qb7 Be2 Rh6 Bd3 Qb6 Qa8 Rg6 Kc8 Nfe6+ Bd8 f8Q Rb7 Qa7 Rc3 Bb3 Rc5 Ba2 Rb6 Qh6 Rb8 Kb3 a4+ Kb4 a3 Qh3 Rb7 Ka4 Qb8 Na8 Rb6 Bb1 a2 Qh4 a1R+ Ba2 Rb1 Nf4 Nc7 Rh6 R6b3 Qb6 Nb5 Rg6 Rf8 Re6 Rf6 Qg7 Bc7 Qgh6 Bd8 Qh3 Be7 Q6h4 Bd8 Qa7 Ba5 Qb6 Be1 h8Q+ Rf8 Bd8 Rf6 Qe8 Qa7+ Qa5 Qh7 Qh8 Qg8 Qb6
1Q2K3/P2rBr2/qR2Q2Q/4B2n/Q4Np1/1p1BN1RB/rqPb2q1/5kb1 b - - 0 1 illegal: No possible last move
3B1BQ1/R1KR1Qn1/1PPR1rqp/N4r1Q/NR1rp3/b3r3/2kr2b1/Q7 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 f5 axb5 Kf7 exf5 g6 d4 Qc7 dxc5 Qd8 f6 Ke6 f7 Bg7 Be2 Bh6 Bf1 Bf8 g4 Na6 h4 Bh6 f5+ Kf6 g5+ Ke5 f6 Bg7 Bd3 Bf8 Be4 Nc7 Bf5 gxf5 g6 Ne6 Qg4 Ng5 hxg5 Kd5 Qd1+ Ke6 Ke2 Ke5 Kd3 d5 c4 a5 b4 h6 b6 e6 b5 f4 c6 a4 g7 f3 b7 f2 b8R f1R g6 a3 c7 d4 c5 a2 Kc4 Ke4 c6 d3 Bg5 d2 Na3 e5 Ne2 Ra7 Nc3+ Kf5 Na4 Ke4 Qh5 Rb1 Rd1 Bh3 c8R Qe8 Rc7 Bg2 Rd7 Ne7 Kc5 Rb3 Kd6 Kd3 g8Q e4 g7 Ra5 Nc4 Nf5+ Kc7+ Kc2 Rb7 Rh7 Qh8 Re3 g8Q Ba3 f8B Qg6 f7 Ng7 b6 Rd5 Ra7 Rd4 Rab1 a1R Na5 Ra2 Bd8 Ra1 Rh1 d1R Rb4 R1d2 Rf1 Rb1 Rf6 Rf1 Rfd6 Rf6 Bfe7 Nf5 f8Q Rhf7 Qe8 Ng7 Bf8 Rf5 Qe6 R7f6 Qgf7 Red3 Qhg8 Re3 Qa2+ Bb2 Qa1 Bc1 Kb8 Ba3 Kc7
3R1Q2/3KB3/kPr2N1P/R2Q1p2/q3R1R1/pr2q2B/bn2QN2/qQ3b1q b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 a4 exf4 g3 b5 axb5 h4 Nh3 g5 Ng1 g4 Qb3 Be7 Qc2 h3 Qd1 Bh4 gxh4 g3 Nf3 g2 Ra4 Nc6 Ng1 Nce7 Ra3 Nf5 Ra1 Ng3 hxg3 Ke7 Nf3 Kd7 Ng1 Ke8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kf5 h2 b4 f3 e4 a4 d4 f6 d6 f2 e5 c4 h5 c3 h6 a3 b6 Kc6+ d7 Kb7 Ke6 f5 d5 c2 d6 Ra7 g4 Ne7 b5 Ng8 g5 Qc7 g6 Rh7 g7 Ra4 Qe2 Ra6 Nd2 Ne7 g8R Ra4 Nh3 g1Q Ne4 Qb8 Bg5 c1Q Rb1 Qc6 Nf6 Ka8 b7+ Ka7 Rb4 Rf7 Re4 Qa6 Bg2 f1B Nf2 Rh7 Bh3 Rf7 Bh4 Rf8 Rgg4 Rb4 Bg5 Kb6 Bh4 Qba7 b8Q+ Bb7 d8R Nd5 Kd7 Nc3 e6 Qa4 e7 Nd1 e8Q Nb2 Qe7 Re8 Qf8 Rb3 Bg5 Re6 Bh4 Bg2 Bg5 Qa1 Rb1 Ka5 Bh4 Ba8+ Qb7 Qe3 Qd5 Qc4 b6+ Ka6 Qdd1 h1Q Qdf1 Na4 Rb2 Bd5 Qb1 Bf1 Bg5 Rc3 Rb5 Nb2 Nh7 Bb7 Rc8 Bg2 Kd8 Qcc5 d7 Bf1 Be7 Qcd4 Nf6 Bd5 Ke8 Qc4 d8Q Qa4 Rb8 Ba2 Qd5 Rb3 Kd7 Rc6 Re8 Qed4 Rd8 Qe3 Ra5+
5knq/3qr2R/pN2P2Q/Q1n3Bb/4BKN1/1n3Rr1/QpP4n/1BQ1B3 b - - 0 1 legal: proof: f4 c5 a4 e5 fxe5 h5 g4 b5 gxh5 Qb6 d4 cxd4 Be3 Bb4+ Bd2 Bc3 bxc3 b4 Bc1 Qb5 axb5 Ke7 Kd2 Kd8 Ke1 Ke8 Kf2 g5 Kg3 d5 h4 f5 e4 d3 c4 g4 c5 d4 h6 a6 h7 d2 h5 b3 h6 b2 e6 d3 c6 Bb7 c7 Nc6 c8Q+ Nd8 b6 Rb8 e5 Ra8 e7 Be4 b7 Nf6 b8Q Kf7 e8B+ Ke7 e6 Bf3 Qbc7+ Kf8 Bg6 Rg8 h8B Ra7 Qa5 Re7 Qc4 Nb7 h7 Nc5 Kf4 g3 Ra3 g2 Qa2 Bh5 Nf3 g1N Ne5 Nf3 Ng4 Nd4 Nc3 Ndb3 Na4 Rgg7 Nb6 Ng8 Qe1 d1Q Rh2 d2 Bc4 Qe2 Qh1 d1Q Bd2 Qg2 Be1 Qd7 Qf1 Nd4 Rf3 Ndb3 Rh4 Qh3 Qg1 Rgf7 Bf6 Rg7 h8Q Qh1 Qh6 Qh3 Ke5 f4 Be4 Qh1 Bg5 Qh2 Rg3 f3 Kf4 f2 Qf1 Qh1 Rf3 Qh3 Qg1 f1N Qe3 Qh1 Qc1 Nh2 Q2a3 Nd4 Ba2 Ndb3 Q3a4 Qg2 Bb1 Qh3 Rf2 Qc3 Qa2 Qcd4 Rf3 Qc3 Qh7 Rg6 Rhh3 Qh8 Qh6+ Rgg7 Nf2 Bf7 Qg6 Rh7 Ng4 Rh4 Rhg3 Rh3 Qh5 Nf1 Rg1 Rg3 Rh1 Bg6 Rh4 Nh2 Qh7 Be8 Rh6 Bh5 Qg6 Qd1 Rh7 Qd7 Qh6+
1r1N2RK/4RNB1/QQ1r4/QQ6/1r2Pn1b/pP1n2kB/4BprB/3b3r b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Qe7 gxf5 g4 h4 Qg5 hxg5 exf4 Kf2 Kd7 e4 Kd6 d4 a5 b6 c5 g6 h5 f6 h4 f7 f3 Ke3 h3 Kf4 h2 Kg5 g3 b3 c4 g7 g2 Kg6 a4 b7 c3 Na3 c2 Be2 Rh7 Nh3 g1R+ Ng5 Bh3 Nc4+ Ke7 d6+ Kd7 d5 a3 Na5 Rg4 Be3 c1R Qd3 Rc6 Bg1 Bf1 Qa6 Rc3 Nc6 Rhh4 Nd8 Be7 f8B Nf6 g8B Nh5 Kh7 Rg2 Bg7 Nc6 b8Q Ne5 Kh8 Rc4 Ngf7 Nd3 Bh7 Nhf4 Qbb5+ Rc6 Rb1 Rh6 Rc1 Re6 Bf5 Rb8 Bh3 Bh4 Rb1 Ke8 d7+ Ke7 Rc1 Rcb6 Rc8 R6b7 Bf8+ Kf6 d6 Rb6 Bg7+ Kg6 Rc5 R6b7 Re5 Rf6 Re7 Rb6 Bc5 Kh5 Rg1 h1R Bd4+ Rg5 Rg4 Bg2 Bg1 f2 Rg3+ Bf3 Bh6 Rc5 Rg8 Rg5 Bg7 Rg6 Nc6 Rd5 d8Q Rg2 d7 R6b7 Qdb6 Bg4 Qba4 Rd6 d8Q Bf3 Qba5+ Rb5 Q5b6 Rb4 Qe8 Bg4 Ncd8 Bf3 Bf1 Bd1 Qeb5+ Bg5 Q4a5 Kh4 Be2 Kg3 Bg4 Bf6 Be2 Bh4 Bh2+
4N3/2r1N1rn/1k1NQ1RQ/3pB2P/3RnRB1/R3Kbnr/N1P1p2r/5b2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 axb5 f5 exf5 h4 Be2 g5 Qd2 Bg7 Qf4 Be5 Qd2 Bg3 Qd3 Qb6 Qd1 Qh6 Bc4 Qh5 gxh5 g4 Bd3 Be5 Be2 g3 Bc4 g2 Bf1 Bg3 hxg3 Rh6 Qf3 Rh7 Qd1 Rh8 Kd2 Kd8 b4 Kc7 f4 e5 f6 a5 b6+ Kb7 g4 d5 g5 e4 b5 a4 f7 d3 f8Q a3 f5 a2 g6 h3 g7 h2 f6 Ra6 f7 Ra4 Qg4 Ra6 Bb2 Nf6 g8N Nbd7 Nf3 g1N Ne7 Ra3 Qe6 Rh7 Ke3 d2+ Nc3 d1B Qh6 Nb8 f8R Nfd7 Ng5 Rg7 Bh3 Bf3 Nf7 Nc5 Bg4 Ne2 Rhd1 h1R Rd4 Rh2 Rg1 a1R Nd6+ Ka8 b7+ Ka7 Rg2 Kb6 Rf4 Nbd7 b8N Nf6 Na6 Ng3 Nc7 Ba6 Nce8 Nh7 Rg1 Rb3 Rg2 Rah1 Rg1 Rb4 Na2 Rc4 Ba1 Rh3 Bb2 R1h2 Ra1 Ka5 b6 Bb5 b7 Kb6 Rd3 Ba6 Be5 Rc3 Rd1 Rc4 Ra3 Rc3+ Kd4 e3 Rd2 Bf1 b8R+ Nb7 Rd3 e2 Ke3 Rc7 Rc8 Nc5 Rdd4 Nce4 Rca8 Bh1 R8a4 Bhg2 Rf6 Bf3 Rg6 Nc3 Rf4 Nce4 Rd4
1r2RK2/4R3/kPnbNpB1/rNNbP1b1/Q1p1n3/6B1/3nNQ2/3Q1nQ1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 f6 exf6 axb3 Ne7 b4 Ng8 b5 Bd6 Qc2 Bc5 Qd1 Bf8 g4 Bf5 g5 Bc8 h4 Qd6 g6 Qd8 gxf7+ Kd7 Nc3 g5 Nb1 g4 Ra2 Qe7 Ra3 Qe3 Ra1 Qg5 hxg5 Be7 Ra3 Bc5 Ra1 Bf8 Kf2 c5 Ke3 Kc7 Kf4 Kb7 b4 a5 d4 h5 e4 c4 b6 g3 b5 g2 g6 h4 g7 h3 d6 a4 d7 a3 Kf5 a2 Kg6 h2 d8Q Rh7 d5 Nd7 d6 Ra5 e5 Nh6 g8Q Nc5 d7 Ra4 Qe8 Be7 d8N+ Ka8 f8Q Nf7 b7+ Ka7 b8N Be6 b6+ Ka8 Nd7 Ne4 Na3 Bd5 Ne2 g1B Ne6+ Kb7 Bf4 Ra5 Bg3 Bd6 Nb5 Rh8 Kg7 Be3 Bg2 Nd8 Ndc5+ Kc8 Bf3 Bg5 Bh5 Kb8 Rg1 h1N Bg6 Ka8 Qfe7 Kb8 Kf8 Kc8 Rc1 a1N Rg2 Nb3 Ra1 Kb8 Rh2 Nbd2 Rh7 Bc7 Q7d7 Bd6+ Re7 Ka8 Qe1 Kb8 Qf2 Ka8 Bh2 Nhg3 Rh1 Ngf1 Bg3 Rh2 Qg7 Rg2 Rh8 Rh2 Rg8 Rh8 Nbd4 Kb8 Qa4 Kc8 Qd1 Kb8 Qea4 Nc6 Nb5 Ka8 Qh6 Kb8 Qh1 Ka8 Qhg1 Kb8 Nd7+ Kb7 Kf7 Ka6 Rb8 Rc8 Kg7 Rc7 Rbe8 Rb7 Kf8 Rb8 Ndc5+
RQ1b3K/rbP1nB2/2N2nk1/2R1p3/1N2pR2/Q4Q1b/nn1RP1r1/4BQ2 b - - 0 1 legal: proof: d4 c5 dxc5 a5 a4 h5 g4 b5 axb5 f5 gxh5 a4 b4 Qb6 Qd5 Qa7 Qe4 Qa5 bxa5 fxe4 Kd2 Kf7 Ke3 d5 Kf4 e5+ Kg5 a3 c4 a2 f4 g6 h4 d4 h6 d3 h5 d2 b6 d1B h7 Nf6 f5 Bd7 c6 Kg7 h6+ Kf7 c7 Bc8 b7 Ng8 a6 Be6 c8R Ba4 a7 Ne7 f6 Bed7 c5 Bd1 c6 Rg8 h8Q Nf5 h7 Nd6 Bh3 Nf5 Bd2 Bg7 Na3 Ne7 Nf3 Na6 b8Q Nc5 Rf1 Bb3 Nc2 Na4 Nfd4 Bd5 Rad1 a1N Rf4 Nb3 Nb4 Nb2 Be1 Nc1 Rd2 Na2 Bg4 Bf8 Bh5 Rg7 Kh6 Bh3 c7 Bb7 Rd8 Na4 Rd5 Nb2 Bg4 g5 Rc5 Nc3 Bc8 g4 Ndc6 g3 Bd7 g2 Be8+ Ke6 f7 g1N Qg8 Nf3 h8Q Rg2+ Kh7 Nh2 Qg3 Ng4 Qf3 Na2 Qg7 Nf6+ Kh8 Nh7 Qf1 Nf6 Qg3 Bh6 f8Q Bg5 Qh6 Bh4 Qh5 Bg5 Qhf3 Bh4 Bd7+ Kf7 Qa3 Bg5 Qgf3 Kg6 Be6 Bh4 Qf8 Rd8 a8R Rd4 Nd3 Ra4 Ndb4 Ra7 Qb8 Nfd5 Rc3 Nc8 Kg8 Bd8 Kh8 Nf6 Rc5 Ne7 Bf7+
1q5k/pq1Rq2n/B3Nrn1/2N3PN/KR3NQP/b2q3p/RQ3R1B/2q5 b - - 0 1 illegal: No extended proof kernel
1R1R3Q/2Nqb1n1/2bQbBq1/pBp1r3/K2P1k2/P2Nb1q1/4B3/1NN1B3 b - - 0 1 legal: proof: g4 d5 b4 Kd7 f4 c5 e4 d4 e5 d3 f5 dxc2 b5 f6 exf6 Kd6 Bb2 c1Q f7 Qc4 Ba3 Qd5 Bc1 Qc6 bxc6 Kd5 Ba6 Ke5 Bf1 Kd6 g5 b5 h3 a5 h4 Nd7 Kf2 Ndf6 gxf6 g5 Ke2 g4 Ke1 Nh6 Nf3 Rg8 Ng1 Rg5 hxg5 Ng8 Qa4 Rb8 Qd1 Ba6 Nf3 Bh6 Bb2 Qd7 Bd3 Bg7 Nd4 Nh6 Be2 Rh8 Bf1 Ng8 Nf3 Qd8 Ng1 Bf8 Bc1 Bc8 g6 Ke5 c7 h5 a3 g3 g7 g2 Be2 Bd7 c8B e6 Ba6 b4 Bab5 Ne7 g8Q Rh7 Qh8 Bh6 f8B b3 f7+ Kf4 f6 e5 Bg7 b2 f8N e4 f7 e3 Bf6 Be6 Nd7 h4 f8N h3 Ne5 h2 d3 Qd6 Bd2 Nf5 Bc3 Rg7 Qd2 Rb7 Kd1 Re7 Kc2 Bg5 d4 Qd7 Nd3+ Ke4 Qe1 Ng7 Qg3 Re8 Qd6 Bh4 Be5 Be7 Be1 Kf5 Bf6 Ke4 Nh3 g1B Nhf4 Bf2 Rg1 h1B Nc1 Kf5 Nfd3 Bc6 Rg5+ Ke4 Rd5 Bg1 Ne5 Kf4 Kb3 Bf2 Ka4 Bg1 Nd2 b1Q Ra2 Qf5 Nb1 Qg6 Rb2 Bf2 Bd1 e2 Ned3+ Kf3 Rb4 Be3 Rb3 Bg8 Ne6 Bf7 Nc7 Be6 Bc3 Ke4 Rb2 e1Q Be2 Qeg3 Be1 Rf8 Bg5 Rf5 Bf6 Ba8 Bc6 Re5 Rb8 Bb7 Bb5 Kf5 Qb6 Bc6 Qa6 Qde8 Rdd8 Qd7 Nb4 Kf4 Qb6 Bb7 Qd6 Bc6 Nbd3+
Q2N1bQ1/q2P1bP1/1r3BqR/7b/1pk1Q1p1/2q1Q1B1/3q1n2/NKB2B1R b - - 0 1 illegal: No possible last move
2rN4/1rrn1r2/RBP3pP/1NQnBR2/BBnKR2Q/2pR4/8/3rkb2 b - - 0 1 illegal: No possible last move
1Kb3nb/1b1Q1p2/3RB3/1RPnN3/NR1Bn3/3RPNN1/1p3k2/3bQqb1 b - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 h5 b4 g5 g4 e5 fxe5 a5 Bd2 axb4 Bc1 Ra6 Kf2 Rg6 Ke1 h4 h3 Rh5 gxh5 g4 Nc3 g3 Nb1 Rg4 hxg4 Be7 Bh6 Bd6 Bc1 Bf8 Kd2 Ke7 Ke3 Ke6 Ke4 h3 c4 d6 a4 b3 e3 b2 h6 b4 g5 h2 a5 b3 g6 g2 g7 Ne7 g8N Ba6 h7 Bb5 h8N Qb6 c6 Nc8 c7 Be8 a6 Qa5 a7 Bb5 a8R Ba6 Ne7 Nb6 c8Q+ N6d7 Nhg6 Nc6 Nf3 g1B Ra3 Bf2 Nc3 b1N Rb8 Qb6 Na4 Bg7 Bb2 Bh8 Nf5 Nb4 Bd4 b2 Bh3 Nd5 Rd3 Qb5 c5 Qc4 Qe1 Bg1 Rb5 Bb7 Qc7 Bc8 Bg4 Qc1 Qc3 Qf1 Qa7 N5f6+ Kf4 Kd5 e6 Ne4 e7 Ndf6 e8R Ng8 Bh3 Qd1 Qd7 Qf1 Qb4 Nbc3 Ng3 Be5+ Kf5 Bh8 Qa3 Kc4 Re6 d5 Rc6 Qe2 Rd6 Qf1 Bg7 d4 Ke5 Nd5 Be6 Bf2 Rg1 h1B Rg2 Bg1 Rgd2 Bg2 Rdb6 Nf2 Kd6 Bh1 Rdb3 d3 Bd4 Bg2 Rd1 d2 Rd3 Bh1 Rdb3 Qg2 Ra6 Qf1 Nh2 Ne4+ Kc6 Nc3 R3b4+ Kd3 Rab6 Nf4+ Kc7 Bhb7 Kb8 Nd5 Rd6 Bf2 Nf3 Bg1 Nf5 Ke2 Nge5 Ne4 Ng3+ Kf2 Qc3 Qc4 Rc1 Qe2 Rc2 d1B Rd2 Nh6 Rd3 Ng8 Ra5 Qe1 Rab5 Qf1 Qe1+
1b3Q2/1R2R3/4p1r1/N1kp3b/3r1nRQ/pKPNB2R/NN2n1P1/B4qn1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 exf5 Bb7 hxg5 Bd5 d4 Bc4 dxc5 Bxf1 Kd2 a5 Kc3 d5 b4 Kd7 f4 h5 g6 a4 b6 Kc6 b5+ Kd7 g7 a3 b7 h4 c6+ Kd6 b6 h3 c7 h2 c8N+ Kc6 f6 Ra4 f5 Kc5 f7 Rah4 f6 R4h6 Nh3 Ba6 Qg4 Rh5 Qh4 Rg5 Be3+ Kc6 Nf2 Bc4 Nd3 Nh6 g8R Nf5 Nd6 Nd7 b8R Ng3 b7 Rg6 Kb4 Bb3 Nc3 Nc5 Na2 Ne6 Nc4 Nf4 Ncb2 Nge2 Rae1 Ng1 Kc3 Bh6 f8Q Qd7 f7 Qf5 Kb4 Bg7 Re2 Be5 Re1 Bc4 Ka4 Bb5+ Kb3 Kd6 Rg7 Be8 Re2 Re6 Rg4 Rg6 Rd8+ Kc6 Rd7 Bb8 Re1 Kb5 Rb1 e6 Re7 Bc7 b8N Bd6 Nc6 Bb8 Qg5 Rh4 Na5 Qf6 Qh8 Qf5 f8B Bf7 Bg7 Be8 Ndb4 Qd3+ Bc3 Qf1 Qf8 Bf7 Nbc4 Be8 Ba1 Bf7 c3 Be8 Bd2 Kc5 Nb2 Rh3 Nd1 Rf6 Kc2 Rd3 Qh4 Bh5 Rb3 Rg6 Nb2 Ngh3 Be3+ Rd4 Rg1 h1N N4d3+ Kd6 Rb5 Ng3 Rbb7 Nge2 Rh1 Nhg1 Rh2 Rf6 Kb3 Rg6 Ndc1 Kc5 Rh1 Qf3 Rh3 Qf1 Ncd3+
1R1b3n/1N1p1r2/4p3/NK1N3n/1P2kQ2/P1pn1RBQ/Q3N3/B3Qbqr b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 b4 a4 Bd3 Qb6 Bc2 Qg6 cxb5 c4 d4 Qc6 Bb3 Qc5 dxc5 axb3 Kd2 Kf7 Kc3 Kf6 f4 g5 h4 g4 h6 b2 c6 e6 h5 g3 b6 g2 b7 Bg7 c7 Bf8 a3 Bg7 h7 Bf8 h6 Be7 Ne2 g1N Qe1 Na6 b8N Bd6 Nc6 Bf8 Na5 Bb7 c8N Bg2 Nd6 Bf3 Ndb7 Ke7 f6+ Kf7 f5 Rd8 Bf4 Rc8 Bg3 Nh3 Rf1 Bg2 Rf3 Be7 Kd4 Bh1 Nbc3 b1Q Nd5 Nc5 Kc3 Qd1 Rc1 Bd8 Rc2 Nf4 Rc1 Kf8 f7 Ng6 Rc2 Nf6 Rc1 Rg8 h8B Bg2 h7 Nh5 Bd4 Ra8 h8Q Bf1 Bde5 Nd3 Qh7 Nhf4 Qh3 Nh5 Kd4 Rg7 Rc3 Ndf4+ Kc5 Nh8 Kb5 Nd3 Rc1 Rh7 Ba1 Rh6 Rc3 Kg7 f6+ Kg6 f8Q Rh7 Qd6 Rf7 Qf4 Qc1 Rc2 Qe3 Rc1 Qg1 Qfd2 Rc8 Qa2 c3 Rc2 Rh7 f7 Rb8 f8Q Rf7 Qd6 Rc8 Rd2 Rc4 Qc7 Rg4 Qf4 Rh4 Qg2 Rh1 Qh3 Nc5 Rd4 Nd3 Re4 Rh2 Rc4 Rh1 Qd6 Kg5 Rc8 Kg6 Rb8 Kg5 Ndf4 Kf6 Qf8 Ke5 Nd5+ Ke4 Qd6 Qh2 Qc7 Qg1 Qf4+
n5kB/bBp1R3/2R1P2R/5Qq1/N3P3/KN1p1B2/b1rp2B1/n2bQ1rR b - - 0 1 legal: proof: d4 b5 c4 e5 cxb5 exd4 a4 g5 e4 a5 h4 d3 hxg5 Bg7 b4 Kf8 f4 Qf6 b6 Qb2 b7 Ke8 b5 Qe5 fxe5 Ra6 Bd2 Rd6 Bf4 Rd5 Bc1 Bf8 b6 Rb5 axb5 a4 Rh5 a3 Rh2 Na6 Rh1 Nb8 Kd2 d5 Kc3 f5 Kb3 Kf7 g4 h5 g6+ Kg7 g5 h4 Ne2 d2 Nbc3 d4 Bb2 a2 Rc1 a1Q Bg2 h3 Qe1 d3 Nd4 h2 Na4 f4 Rc6 Na6 b8Q f3 b7 f2 b6 Bd7 Qc8 f1R b8R Bc5 b7 Nf6 Bf3 Bg4 Qf5 Rh6 Re8 Ba7 b8R Rg1 Rbb6 Nd7 Re7+ Kg8 g7 Nac5+ Kb4 Bh5 Nb3 Bf7 Bd4 Qc3+ Ka3 Qa5 Ra6 Rg6 Bc3 Nb6 Ba1 Kh7 g8B+ Kh8 Bh7 Na8 Bg2 Re6 Bg6 Kg8 Bh5 Rh6 g6 Bc4 Nc1 Ba2 g7 Nb3 Bhf3 Qb5 Bb2 Na1 Nb3 Rd6 Rab6 Rd4 Rh6 Rc4 Rbc6 Rc2 Rhg6 Kh7 g8B+ Kh8 Bc4 Qd5 Rh6+ Kg8 e6 Qe5 Rf7 Qf4 Ba6 Qg5 Bh8 Rf1 Rg1 h1B Bh3 Bg2 Rh1 Rg1 Re7 Bf1 Bb7 Be2 Bf1 Bd1 B1g2
2QR1r2/1Bpn3P/KnQ3R1/Pp1b1Qq1/R1rp1R1k/3B3r/2QN3N/b7 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 bxa5 Nh6 g4 Ng8 gxh5 Rh7 Bd3 Rh6 Bf1 Rh8 c4 e5 d4 d6 c5 Qh4 Be3 Qg5 cxd6 Qh4 d5 Qd8 Bd4 exd4 Kd2 Kf7 Kd3 Kf6 Kc4 Kg5 Kb5 b6 f4+ Kh4 a4 g5 h6 g4 d7 g3 d6 g2 h7 Qe7 d8R Qe8+ d7 Na6 f6 Qe1 f5 Ne7 f7 Bg7 f8R Ng6 f6 Nf4 f7 Qe6 Qc2 Nh5 Nd2 Qh3 Ngf3+ Kg4 Bd3 Bb7 Rhg1 Nb4 a6 Be4 a7 Qg3 h4 Rb8 a8B Nd5 a5 Nhf6 h5 Bh6 Nh2+ Kh4 Ra4 Qg5 Ka6 b5 Bb7 Nb6 Qc6 Bd5 Qc2 Rg8 h8Q Rg7 Qg8 Rh7 Qg6 Rh8 Qf5 Rh7 Qe6 Rh8 Qec6 Rh7 Rf1 g1R Rg8 Rh1 Rf2 Rc1 Rg6 Bf8 h6 Bb4 f8Q Bc3 Qf7 Ba1 Qfe6 Rh8 Qf5 Rc8 Qb2 Rc4 Qc2 Re8 h7 Re3 Rf1 Rh3 Rf4+ Kg3 Rh8 Rf8 d8Q Nfd7 Qb8 Rh4 Qc8 Rh3 Rf3+ Kh4 Rf2 Rf6 Rd8 Rf8 Rf4+
B3RQ2/b1Nk1b2/1B1P1r2/1q1pQ3/1Q2BqQK/P3RB2/2ppr2n/1n3N2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 d5 bxa5 e6 h4 Ra6 hxg5 Ra8 c5 e5 d4 Qd6 cxd6 exd4 g4 c5 f4 b5 Kf2 h5 Kg3 d3 a3 b4 g6 c4 g7 b3 g5 b2 f6 c3 a6 c2 f5 Bb7 g6 Nd7 a7 Rc8 a8B Rh6 f7+ Kd8 f6 Rc4 Nf3 Bc8 Be3 d2 Bg2 Be7 Nh2 Re4 Bf3 Nc5 f8Q+ Kd7 f7 Bg5 Qe2 Na4 Nf1 Nf6 g8B Nc3 g7 Ng4 Bh7 Nh2 g8Q Rf6 Bb6 Be3 Qg4+ Ree6 Bhe4 h4+ Kh3 Bf2 Qh8 Bc5 f8Q Bf2 Bd8 Ba7 Qf4 Re5 Bb6 Re7 Qc4 Re8 Qb4 Re7 Kg2 h3+ Kg3 Re8 Kh4 Re5 Bg6 Re2 Qfe4 Na4 Nc3 b1Q Nb5 Nc3 Bh7 Qb3 Qec4 Nb1 Nc7 Qd3 Qe4 Qb5 Qg4+ Ree6 Qhg8 Nc3 Qg2 Ng4 Rb1 h2 Rg1 h1Q+ Qh2 Re8 Rb3 Kd8 Bf5 Be6 Rg2 Nb1 Qg6 Kd7 Re2 Re7 Bd3 Bf7 Qh5 Re5 Qh3 Qh2 Bg6 Rg5 Re8 Qf4 Bge4 Rg7 Re3 Rg8 Qg2 Nh2+ Kh3 Rgg6 Qe5 Rg5 Qg3 Rg4 Qh4 Rg2 Qg3 Re2 Qg2 Ng4 Kh4 Nh2+ Qg4+
2k2N1r/1P2npBb/7K/N6Q/R1rQ1QRp/1B4p1/1N1NQ1P1/nr3qn1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 fxe5 g4 b3 Be7 b4 Bg5 hxg5 axb4 Kf2 Kd7 Ke3 b5 Kf4 h5 e4 c5 a4 c4 d4 g3 d6 b3 e6+ Kc6 e5 Kb7 d7 c3 d5 c2 e7 b4 e8Q b2 g6 b3 a5 Na6 g7 Qe7 d8Q Bh3 d6 Qf8 Kg5 Nc7 d7 Nf6 g8Q Be6 a6+ Ka7 Nh3 Rc8 Ra4 Kb8 Nf4 Bh3 e6 Bf5 e7 Bg4 Nd2 b1Q Ng6 b2 Bc4 Rh6 Rh4 Rh8 Bb3 Bf5 Rhg4 h4 Qf1 Be4 Qh7 Nfd5 Qh5 Nb4 Qf6 Qa1 Qf4 b1R Bb2 c1N Bg7 Qg8 Nf8 Bh7 Kh6 Ne2 Qf1 Ncd5 Qf4+ Ka8 Qb6 Ng1 d8N Nc2 Qbd4 Rc7 Qb5 Rc4 e8N Ne7 Nd6 Qa2 Qhf5 Na1 N8b7 Kb8 Qh5 Qb2 Qbe5 Qc1 Qe2 Qf1 Na5 Kc7 N6e4+ Kc8 Nc5 Nh3 Nd3 Ng1 Ne6 Qd8 Nb2 Qd5 Nf8 Qb7 axb7#
6R1/Pn1B2p1/R1B4k/1bNKPN2/bbQ1n1Rn/2R4p/3p1Nrq/N6Q b - - 0 1 illegal: No proof kernel
b2qNK2/QQ4n1/2Pk3P/2N2R2/1Qn1B1r1/n1R2Qqp/1B2Bpp1/3B1b2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 c5 axb5 h5 g4 a6 d3 h4 d4 cxd4 Kf2 g5 Qe1 a5 Ra3 Rh5 gxh5 g4 Rh3 Bh6 Ra3 Bf4 Qd1 g3+ Ke1 g2 Ra1 Bg3+ hxg3 Ra6 Qd3 Rh6 Qd1 Rh8 Kd2 Ke7 Kd3 d5 c4 f5 e4 a4 b4 f4 g4 h3 b6 f3 b7 f2 b5 a3 g5 a2 c5 Be6 b6 Qf8 c6 Qf6 g6 Qf4 h6 Qh2 g7 Rh7 Ne2 Nd7 b8Q Bf7 b7 Nb6 e6 Qf4 e5 Na4 Bb2 Qh4 Nbc3 Bh5 Ng3 Bf3 Be2 Qg5 Nge4 Bg4 Nb5 Bh5 Nbd6 Be8 Qa7 Bd7 b8Q Nf6 g8Q Nb6 Ne8 Nc4 Qbb7 Nh5 Nc5 Rg7 Rb1 a1N Qf8+ Kd8 Qe1 Nc2 Qeb4 N2a3 Rhc1 Bc8 Qf3 Qg3 Rc3 Rg4 Re1 Ng7 Bd1 Bd7 Re4 Bc8 Rf4 Na5 Rf5 N5c4 Qf7 Bb7 e7+ Kc8 e6 Ba8 Nf6 Rh4 e8B Rg4 Qfb7+ Kd8 Bd7 Ke7 Bc8+ Kd6 e7 Nc2 e8B N2a3 Bg6 Ne3 Kd2 d3 Bh5 d4 Be6 Re4 Bd5 Rg4 Be4 Nec4+ Kc1 Nb5 Be2 d2+ Kc2 d3+ Kb3 Nba3 Ka4 Nb1 Kb5 d1B Nd5 d2 Nc7 Bc2 Bd1 Ke7 Be2 d1Q Ne8+ Qd7 Na4+ Ke6 Kc5 Bd3 Bd1 Qdc7 Be2 Ke7 Bd1 Nba3 Kd5+ Nd6 Nc5 Bf1 Qe3 Rf4 Bhe2 Rg4 Qf4 Kd8 Ke5 Ndc4+ Kf6 Qb6 Kf7 Qc7+ Kg8 Ke7 Qf3 Qd7 Nc7 Kd6 Kf8 Qd8+ Ne8+
3K1bR1/4QrN1/Pr3Bn1/1Nq5/bp1Q2pB/B3bpQ1/6Pk/2QB1Rq1 b - - 0 1 legal: proof: d4 d5 b4 a5 f4 axb4 c4 h5 cxd5 e5 fxe5 c5 Qd3 c4 Qh3 Na6 Qxh5 Qd6 Qh7 Nc5 dxc5 Qd8 Kf2 Ke7 Kf3 g5 Ke4 b5 h4 c3 a4 c2 a5 g4 a6 b3 h5 b2 d6+ Ke6 c6 f6 h6 b4 d7 Bc5 c7 Qe8 d8B Qb5 Qg7 Bf2 h7 Ne7 Nf3 Qc5 Nc3 b1Q Ba3 Qa2 Nh4 c1B Nf5 Be1 Nb5 Rg8 h8B Bd7 c8Q Bb2 e3 Bd2 Be2 Bbc3 Raf1 Bd4 Bd1 Qa7 Qc1 Bb6 Rh6 Be1 Rg6 Qd5+ Kf4 Bf2 e4 Be8 Rg5 Bfc5 Rg6 Kd7 e6+ Kc6 e5 Rf8 Rg5 Rf7 Rg6 Rb8 Rg5 Ng8 e7 Qd6 Rg6 Kd5 Rg5 Bc6 e8Q Ne7 Qd7 Rb7 Qc7 Bd7 Rg6 Ke6 Rg5 Ng6+ Ke4 Be3 Q7c3 Bec5 Qg3 Be3 Be7 Bbc5 Bd8 Be8 Be7 Rb6 Bd8 Kd7 e6+ Kc6 e7 Kd7 Ba4 Ke6 Bd1 Bd7 e8Q+ Qe7 Nbd6 Ba4 Nb5 Bd6 Qef8 Qec7 Be7 Qc5 Qd8 Bc7 Qd4 Bd6 Bd8 Bf8 Qh7 Nh4 Rg7 Ng6 Rg8 Qc3 Nfd6 Qc5 Ne8 f5+ Kd3 f4 Ke4 f3 Bh4 Qc3 B8f6 Qa1 Kd3 Kf5 Kc4 Qc3+ Kd5 Qe1 Rf2 Qg1 Rf1 Rbb7 Kc6 Rb8 Be7 Qc5+ Kd7 Rb6 Kd8 Rc6 Bef6 Rb6 Qd7+ Ke4 Qe1 Kf4 Ng7 Qf5 Qh8 Qc2 Qe7 Qcf2 Bhg5+ Kg3 Bh4+ Kh2 Qb1 Bd2 Qc1 Qc5 Qf2 Bh6 Qd4 Bg5 Qh5 Be3 Qhe5+ Bf4 Qe1 Be3 Qg3+
2K1n1R1/1B3qp1/b1Q1Q1QP/RB2br2/p3pP2/R3n3/NN1k4/Q1nq3R b - - 0 1 legal: proof: g4 b5 e4 c5 d4 f5 dxc5 a5 a4 h6 axb5 Qc7 g5 Ra6 exf5 Rf6 gxf6 Qb6 Bg5 hxg5 f4 Qd8 Kf2 Kf7 Kf3 e5 Ke4 d6 Kd5 e4 c4 a4 h4 g4 b4 g3 b6 g2 c6 Nd7 c5 Rh7 h5 Ne5 b5 Qd7 c7 Nf3 b7 Ng5 b8R Bb7+ c6 Ba6 c8B Rh8 h6 Qe8 b6 Rh7 b7 Qe7 c7 Qd7 Ra8 Nh3 b8R Nf2 Ra3 Bb5 Ne2 g1Q Nd2 Rh8 Nc1 Nd3 Ra5 Ba6 Na2 Qg6 Qg4 Nc1 Nc4 Qd8 Kc6 d5 Bd3 d4 Bb7 Bd6 c8Q Qh5 Bf1 d3 Qg5 Qf8 Kd7 d2 Qc6 d1N Rd8 Qf3 Kc8 Ne3 Qg2 Qe8 Bd3 Qd1 Qg6+ Kf8 f7 Ke7 f6+ Ke6 f8Q Qe7 f7+ Nf6 Qfe8 Rf8 Qb5 Bb8 Qb1 Be5 Qeb5 Qe8 Qa1 Qe7 Nb2 Qe8 Qh7 Qe7 Qg8 Kf5 Qb6 Kg4 Bb5 Kf3 Qc6 Qe8 Qh7 Kf2 Qg6 Qe7 Rh4 Ke1 Re8 Kd2 Rh1 Rh8 f8Q Rg8 Qff7 Rf8 Qfe6 Rf7 Rg8 Ne8 Bc4 Rf5 Bd3 Qf7 Bb5
2NQ1rQ1/n1kqp2B/1R2Rp2/pR1nP3/bb2N1NP/N2K4/1q5B/2b1R3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 f4 Bh3 b6 Bc8 b4 h5 b5 a5 fxg5 Ra6 g4 hxg4 bxa6 Rh3 Nc3 Rh6 Nb1 Rh8 d4 Kd7 Kd2 c5 e4 g3 h4 f6 a7 g2 a8N c4 g6 c3+ Kd3 c2 g7 Nh6 g8N Qc7 b7 Qd6 e5 Ng4 Nb6+ Kc7 Nf3 g1B Na3 Qc6 d6+ Kd8 d7 Rh6 d5 Rh7 Rb1 Bc5 Nh6 Bd4 Ng5 Qc5 Rb5 Rh8 Bf4 c1Q Ne4 Qa1 Qb3 Qb2 Bh2 Nc6 b8R Ne3 Ng4 Kc7 d8R Nc2 Rd6 Bd7 Re6 Qd6 Nc8 Bc3 R8b6 Bh6 Bg2 Re8 Re1 Rf8 Bh1 Be8 Qc4 Qd7 d6+ Kd8 Bf3 Ne3 Bd1 Bd2 Bc2 Nd5 Bb1 Bb4 Qb3 Qb7 d7 Kc7 Qa4 Bc1 d8Q+ Kb8 Bc2 Na7 Qb3 Bd7 Qe8 Kc7 Red6 Nc3 Qg8 Nd5 Re6 Qc6 Bb1 Qd6 Bc2 Bc6 Bb1 Qd7 Nc3 Be3 Kc4 Qc2 Rc5 Qc1 Bh7 Bf4 Kd3 Qb2 Ne4 Bc1 Rc3 Bd6 Rcb3 Ba4 R3b5 Bb4 Qd8+
1N1q1R1q/1p2n3/4N2p/rp1nQ1rR/1B2b2n/1R6/1P1KB1P1/R1NN1Q1k b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 a6 h4 Bg7 hxg5 Bc3 a3 Bb4 axb4 Nh6 b5 axb5 Qe2 Ng8 Qg4 Be6 Qd1 Bc8 d4 Kf7 f4 c5 g6+ Kf6 g7 e5 d6 h6 d5 c4 d7 c3 d6 c2 Rh5 e4 Kd2 Ra5 Nc3 Na6 Qe1 Qb6 d8N Qf2+ Nge2 Qb6 d7 Ne7 g8R Nb4 Nd1 Nbd5 Nc6 Qd8 Rg3 Rg8 Nb8 Rg5 Rb3 Qh8 d8N e3+ Kd3 Bd7 Bd2 c1Q Bb4 Qc7 Nc1 e2 Ne6 Bc6 Kd2 Qcd8 Qg3 e1N Be2 Nd3 Qe3 Ne5 Qe4 N5g6 Qe5+ Kf7 f6 Nh4 Nc7 Kg6 f7 Qd7 Ne6 Qdd8 Qd4 Kf5 f8Q+ Qf6 Qc3 Ke4 f5 Qh8 f6 Kf5 Bd3+ Kg4 f7 Kg3 Be2+ Kh2 Qe5+ Kg1 Qe8 Kh1 f8R Nf6+ Qd7 Be4 Qd3 Nfd5 Qf3 Rg4 Qff4 Rg5 Qf1#
2b3B1/1p4p1/8/r3BNQq/rk1Nnn1Q/1p1R2Q1/Q1P1rP1q/1RBB1K2 b - - 0 1 legal: proof: b4 a5 e4 axb4 g4 h5 gxh5 f5 exf5 c5 d4 e6 dxc5 Rh6 a4 Rh7 a5 Nc6 a6 Nb8 a7 Be7 Bg5 Na6 Bc1 Rb8 a8Q Rh8 Qa7 Ra8 Qb8 Bg5 Bxg5 Nc7 Bc1 Na6 h4 Ke7 c6 d5 f6+ Kf8 f7 Ke7 f8B+ Kf7 c7 b3 h6 e5 h7 Ke6 h5 e4 h6 e3 Qh5 e2 Nd2 d4 Ndf3 d3 Qg5 Nf6 Nh4 Qd7 Rh3 Ne8 Nf5 Kd5 Rb1 Kc4 Bd6 Nf6 Nf3 Kb5 Be5 Kb4 N3d4 Nd5 Qa7 Rf8 h8Q Nf4 h7 Nc5 Qa2 Ra4 Qg8 Rf6 h8Q Rfa6 Qhh4 Ne4 Q8d8 Qf7 Qgg3 Qh5 Qdg5 R6a5 Bg2 Nc5 Bd5 Ne4 Bg8 Qh8 Q3g4 Qh6 Rf3 Qh7 Qhg3 Qh2 Q4h4 Nc5 Kd2 e1R Re3 Re2+ Kd1 Rd2+ Ke1 Re2+ Kf1 d2 Rd3 Ne4 Ne7 Bf5 c8B Bg4 Bce6 Bf5 Bef7 Bc8 Nef5 Re3 Nf3 d1Q+ Ne1 Qh5 Nf3 Qh7 Bh5 Qh8 N3d4 Qh7 Bf3 Qh5 Bd1 Re2 Qe7+ Nd6 Qef6 Ne4 Qfg5
R1brn3/1N1p3R/4P2R/1Q1B1Bbn/1r1B2N1/Pn1Qp2K/1r3kp1/4R2B b - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 gxh5 c5 dxc5 f5 b4 axb4 e4 Qb6 exf5 e4 Nf3 Qf6 Ng1 Qe5 fxe5 Ke7 Bh6 Kf7 Bc1 Ke8 Kf2 Kf7 Kg3 g5 h4 b5 c4 g4 h6 b3 a3 b2 c6 e3 e6+ Kf6 h5 Ke5 h7 Ke4 h6 b4 c7 b3 f6 Bg7 f7 Bd4 f8R Bb6 c5 Ba7 c6 Nf6 Bh3 Ng8 Qd3+ Ke5 Nd2 b1N Bb2+ Nc3 Re1 Bc5 Ne4 Ba6 c8B Nf6 c7 Be7 Bb7 Ne8 c8B Nc6 Nd6 Nd4 Bd5 Rb8 Nb7 Ne4+ Kh2 Bf6 Nf3+ Kf4 Ne5 g3+ Kg2 Rg8 Bf5 Bg5 h8Q N4f6 h7 Nh5 Qf6 Rh8 Ng4 Rg8 Bc3 b2 h8R b1R Rh6 Rb4 Kh3 Nb3 Bd4 Rh8 Rh2 Rg8 Bh1 g2 Qe5+ Kf3 Qeb5 Nd6 Rf7 Rd8 Rfh7 Ne8 Nd6 Rb6 Bb7+ Rc6 Ba8 Bc8 Nb7 Rc2 Na5+ Kf4 Bd5 Rb2 Nb7 Neg7 Qe2 Ng3 Qed3 Rf8 Rh8 Rg8 Bc4 Kf3 R6h7 Re8 Nf6 Kf2 Kg4 Rg8 R2h6 N3h5 Kh3 Rf8 Nc5 Ba6 Bd5 Rb8 Rc8 Ne8 Rd8 Rb7 Ra8 Rb8 Bc3 Rd8 Bd4 Bc8 Nb7 Ra4 Rf7 Rc4 Rfh7 Rb4 Ng4+
1Q4N1/8/RqP2BR1/1bQ1N2R/bb3n2/N1pBr1p1/1np1P1bk/K1R4N b - - 0 1 legal: proof: b3 c5 b4 e6 a3 c4 a4 b5 a5 a6 Nf3 Ra7 Ng1 Rb7 Ba3 Rb6 axb6 a5 Bb2 Nh6 Bc1 Ng8 g4 d5 f4 h5 gxh5 e5 fxe5 d4 c3 Bc5 bxc5 dxc3 d4 Ke7 h4 Ke6 b7 Kf5 e6 Kg4 d5 Kg3 e7 g5 e8N f5 c6 a4 h6 a3 h5 g4 d6 b4 d7 b3 h7 a2 h6 f4 Bg2 f3 Bg5 b2 Na3 b1B Nf6 Na6 b8Q+ Qc7 d8N Bc2 Qc1 Ne7 Nh3 Re8 h8R Nb4 h7 Ba4 Rg8 Ng6 h8R Ba6 Nf7 Nf4 Rh5 Qb6 Nf2 Re3 Ne5 B6b5 Rg6 c2 Kd2 Nbd3 Qg1 Nb2 Kc1 Bb3 Ng8 B3a4 Rb1 a1B Bf6 Nd1 R1h4 Bc3 Ra1 Bb4 Rh1 Nc3 Kb2 Nd1+ Ka2 c3 Rc1 Nb2 Ka1 Bc5 Rh8 Bf8 R1h5 Bb4 R8h7 Qc5 Ra7 Qb6 Nfd3 f2 Ra6 f1B Be4+ Bg2 Nf2 Qa7 Bd3 Qd4 Rhg5 Qb6 Nh1+ Kh3 Qf2 g3 Rf5 Kh2 Rfg5 Rf3 Qc5 Re3 Rh5+
6nk/B2RpBN1/1b1P2R1/2p3Rq/n1b2bPr/bN1B4/Rp6/B1Q3KQ b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 Nf6 c4 Ng8 cxd5 Qd7 Na3 Qd6 Nb1 Qd8 f3 hxg4 Qe2 g5 Qd1 g3 Ba6 g2 Be2 Ra6 Bf1 Ra8 Nc3 b5 Qb3 g4 Nb1 g3 Qa4 Rh4 Qd1 Rg4 fxg4 Ra6 Qc2 Rh6 Qd1 Rh8 h4 Kf7 a4 Kg7 d4 c6 f6+ Kh7 a6 b4 f7 b3 a5 Qb6 a7 Qb7 a8Q Qb6 h5 Qa7 d6 Qa6 d5 Be6 h6 Nf6 d7 Bf5 d8R Qb5 a6 Bg7 f8R Qb4+ Nd2 Ng8 d6 Qa4 a7 Bc2 Rh5 Nd7 Nh3 g1B Ng5+ Kg6 h7 g2 Ne6 Bb1 Rg5+ Kh6 Bd3 Qa5 Ra2 Nc5 Rd7 Bb2 Ng7 Bh2 Kf2 Bf4 Kg1 Na4 Qe1 Qf5 Rf6+ Qg6 Qb7 Ba3 a8B Bc2 Bb2 Bd1 Qf1 Be2 Ba1 b2 Qc1 Bf1 Nb3 Be2 Bb1 Bc4 Re6 Nf6 Bd3 Qh5 Kf2 g1B+ Kg2 Rb8 h8B Bb6 Kf1 Qg6 Kg2 Kh7 Kf1 Ng8 Kg2 Qf5 Reg6 Ba5 Kg1 Rd8 Nh5 Bb6+ Bd4 Re8 Ng7 Kh8 Rh6+ Qh7 Rhg6 Qh5 Bf2 Ba5 Bb6 c5 Ba7 Bb6 Qh1 Rf8 Bd5 Rf5 Be6 Re5 Bdf5 Re2 Bd3 Rh2 Bd5 Rh4 Bf7
4N2R/q1pr1B1Q/2q4q/bpP3Qp/2R4K/2R3n1/1b4PR/2BqBkNB b - - 0 1 illegal: Other
kR3nNR/3Qq3/B2B1BB1/n2rNK2/3N1p2/2Pnr1PQ/3pN1p1/5r1r b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 fxe5 c5 axb5 f4 d4 cxd4 Na3 g5 Rb1 Be7 Nf3 Bb7 Ng1 Be4 Bd2 Bf5 gxf5 g4 Bc1 g3 Ra1 g2 Nb1 Bh4+ Kd2 Bg3 hxg3 Qc8 Ke1 Qd8 Kf2 d5 Kf3 Kd7 Kg4 Kc8 b4 Kb7 e4 a5 b6 h6 e6 d3 e7 d4 e8B d2 f6 a4 b5 h5+ Kf5 a3 f7 h4 f8B a2 e5 h3 e6 d3 e7 h2 Na3 Na6 Bb2 Rc8 Bg6 Rh3 e8N Rh8 Ne2 Qd6 Nc4 Nb4 Bf6 Qd8 c3 Nc6 Ne5 Qe7 Rb1 a1R Qa4 Kb8 b7 d1R Qd4 d2 Qd7 Na5 Rb4 Ka7 b8N+ Ka8 b6 Rd8 Nbc6 Re1 Ncd4 Rab1 Nd6 Ra1 Ndf7 Rh7 Nh6 Rad1 Bh4 Nf6 Ng8 Rh6 Rb5 Nh7 Bf6 Rc1 Ng1 Re3 b7+ Ka7 Bc4 Rf1 Nge2 Kb8 Rb2 Rh4 Ba6 Rh6 Rg1 h1N Rb6 Nf2 Rh1 Nd3 Rh2 Qe8 Bd6+ Ka7 Rb1 Nf8 Rh5 Rh7 Rh4 Qe7 Rb5 Rf7 Rh8 Rg7 Rc5 Rh7 Rc8 Rhh1 Rb8 Rc8 Bh4 Rc5 Bf6 Rd5 Re8 Kb6 b8Q+ Nb7 Qbc8 Ka7 Qb5 Na5 Qe6 Qd7 Rb8 Qc7 Qed7 Qb7 Qh7 Qc7 Qh3 Qe7 Rb6 Ka8 Qd7 Nh7 Rb7 Nf8 Rb8#
8/B3bQ2/3PBbpn/p3pR2/r1BB1Nr1/QrN2RR1/1b2P3/r1k2R1K b - - 0 1 legal: proof: g4 e5 f4 d5 c4 dxc4 a4 b5 axb5 Qf6 f5 Qe6 fxe6 f5 Nh3 f4 Ng1 Nc6 h4 Bd7 h5 Nd4 Na3 Nf5 Nb1 Bc6 h6 g6 Rh2 Bg2 Rh1 Ng7 hxg7 Bc6 Ra6 Be4 Ra1 Bf5 gxf5 Ke7 Na3 Kd8 Nb1 Ke8 Kf2 Ke7 Kg2 Kd6 b4 Kd5 d4 Ke4 e7 h5 e8Q a5 d5 c5 d6 c3 f6 c2 b6 c4 b5 h4 b7 c3 b8R Rh7 b6 Nh6 g8B Be7 Rh3 f3+ Kh1 f2 Bb2 c1B f7 c2 f8R Bcg5 b7 c1B Bc4 Bgf6 Rg3 h3 Qb3 h2 Bh3 f1R Qf7 Rf4 Bhe6 Rg4 Bd4 Bb2 Nh3 Ra6 Qb4 Rb6 Qa3 Rb3 Nf4 Rh8 Rbe8 Rh7 b8B Rh8 Kg2 h1R Bba7 Rc1 Bb5 Rc4 Kh1 Ra4 Bbc4 Rh7 Rc8 Rh8 Bdb6 Rh7 Rc5 Kd4 Nc3 Rh8 Rf1 Rh7 Rgg1 Ke3 Rg3+ Kd2 Rd5+ Kc2 Rdd3 Rh8 Ra8 Rc8 Rdf3 Rc5 Rf8 Rd5 Qg7 Rd1 Bd4 Ra1 Qh7 Bh8 Rf5 Bhf6 Qf7 Kd2 Nd1 Kc1 Nc3+
1B4b1/pr3QrR/kq1NKPN1/1Qp1n3/1bBpQ3/P1p2n2/R1R4R/7Q b - - 0 1 legal: proof: e4 b5 d4 e5 dxe5 h5 g4 f5 exf5 Nh6 gxh5 Ng8 c4 bxc4 Kd2 c5 Kc3 g5 f4 d5 h4 Kd7 b4 Kc6 a3 Kb6 h6 g4 f6 g3 h5 g2 b5 Bf5 e6 Qd6 h7 Qd7 f7 Ka5 e7 Nh6 e8Q Ng4 b6 Bg7+ Qd4 Bf6 f8Q Kb5 b7 Qc6 h6 Bd7 f5 Qb6 Bf4 Qd6 Ra2 Ka6 Nf3 g1Q Ne5 Ne3 Qff7 Ka5 Nd2 Ng2 Ne4 Rg8 h8Q Bb5 h7 Bd8 f6 Qb6 Ng6 Rg7 Rh2 Ka6 Nd6 Nh4 Qc6 Nf3 Qe4 Nd7 b8R Nde5 Rb7 Rb8 Rhc2 Qg2 Re7 Bc7 Bh2 Rb7 Qa8 Ng4 h8R Qe2 Bf4 Nge5 Rh2 Ba4 Qh8 Bb3 Qh3 Ng4 Qg2 Nge5 Qh1 d4+ Kb2 Qg2 Qfd5 Nd7 Qde6 Qe2 Nf5 Rg8 Reh7 Rg7 Bg3 Bd8 Bb8 Nde5 Nd6 Qd3 Qa4+ Qa5 Qac6+ Bb6 Qg8 Ba4 Qgd5 Bb5 Qg8 c3+ Kb3 Qe2 Qcc8 Bd7 Qcc6 Qd3 Qgd5 Be6 Be2 Bg8 Bf1 Qe2 Qf7 Nd3 Kc4 Nde5+ Kd5 Qeb5 Qe8 Bd8 Bc4 Qc7 Qd7 Qc6+ Ke6 Ba5 Qc7 Qb6 Qcc6 Bb4 Qxb5+
Q1r2n2/p5NR/KQ2Q3/1P1n4/kBr1B1Bp/Q1PRqpp1/4NB2/b5n1 b - - 0 1 legal: proof: d4 b5 g4 e5 f4 g5 a4 c5 axb5 f5 h3 Qf6 fxe5 cxd4 Bg2 f4 Bf1 Bb7 Na3 Bf3 Nb1 Qf5 gxf5 g4 Ra3 g3 Ra1 Bg4 hxg4 Be7 Nc3 Bd6 Nb1 Bf8 b6 d5 Kd2 Kd7 Kd3 Kc6 e4 Kb5 b4 h5 e6 f3 g5 Rh6 e5 Rg6 b7 Na6 b8Q+ Kc6 f6 Be7 f7 Bf6 f8B Bh8 c3 Ne7 Qb3 Rg8 g6 Nc8 e7 Bf6 e6 Bh8 g7 Nc7 Na3 Nb6 Nc4 Kb5 Qb7 Rd8 e8B+ Rd7 e7 Ne6 Bf7 Rc7 e8Q+ Rc6 Bg6 h4 Qea8 Rc5 Be4 Rc6 Bd6 Rgc8 g8Q Bf6 Ra6 Nf8 Qa3 Bg5 Be3 Bf4 Bf2 Bc1 Bh3 Bb2 Bhf5 Ba1 Ne3 R6c7 Bg4 Rc5 Kd2 d3 Nf5 d4 Ng7 R5c6 Qc7 Nd5 Be7 Rc5 Rh6 Rc6 Qe6 Rc5 Qb2 Ka4 Rh7 Rc6 b5 Rc4 Kd1 d2 Kc2 Rd8 Qcb6 Rdc8 Be3 d1N Ne2 Nf2 Rd1 Nh3 Bf2 Ng1 Kd3 R4c6 Bc5 R6c7 Kc4 d3 Qc1 d2 Qb2 Nb4 Qc1 Na6 Kd5 Nb4+ Kd6 Nd5 Bb4 Rc4 Qb2 Rd4 Qc1 Re8 Kc6 Rc8+ Kb7 Rdc4 Re1 d1Q Ka6 Qd2 Rd1 Qg5 Rd3 Qe3 Qa3#
2Q1R3/1pR1KBbN/QQ3N1q/1p1p4/R1rr3q/Q3P2P/2R2p2/1kBn1b2 b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a6 b5 axb5 f3 Na6 f4 Nb8 fxe5 h5 g4 h4 a4 h3 a5 Nf6 a6 Nc6 a7 Nh5 gxh5 Ne7 Nf3 Rb8 Ng1 Ng8 a8Q Ne7 Qa7 Ra8 Qb8 Ng8 Bxh3 Qg5 Bf1 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 c4 d6 e3 g6 c6 Be7 c7 Ra6 h3 Ra3 c5 Ra2 h6 Nf6 Kg5 f4 c6 f3 h7 f2 Nc3 Ra4 Ne4 Rd4 Qa4 Kd5 e6 Bf8 e7 Be6 c8Q Bg7 e8R Bg4 c7 Be2 Qaa8 Kc4 Qa6 Kd3 Qba8 Kc2 Nf3 Nd5+ Nf6 Nc3 Ra4 Kb1 Q8a7 Rg8 h8Q Nd1 Qh6 Rc4 Bg2 Bf1 Qc5 Rf8 Qa3 Rf7 Rg1 Rd7 Bh1 Qe7 Rg4 Qe6 Rd4 Qe7 Rd2 Qf8 Rc2 Qh8 Qh4 Rd8 Qd4 Qh6+ Kg4 g5 Kf5 g4 Ke6 g3 Qdb6 g2 Ng5 g1Q Nh7 Qg3 Bd5 Qgh4 Ke7 Rd4 Bf7 d5 Qca8 Rd6 c8R Rc6 Rc7 Rcc4 Qc8
q1qN2B1/1PNRn3/3Q2RR/B3r1Q1/NKPRN1p1/p5p1/r4pk1/2n2q2 b - - 0 1 legal: proof: g4 c5 d4 h5 dxc5 hxg4 a4 d5 e3 b5 axb5 d4 Bc4 e5 Ra6 e4 Bf1 d3 Ra3 Bb7 Ra1 Bd6 f3 Be5 Nh3 Bf6 Ng1 Bd4 exd4 e3 Ra6 Qd6 Ra1 Be4 fxe4 Qd8 h4 Kd7 b4 Ke6 h5 f5 h6 a5 c6 g5 d5+ Ke5 c7 Kf4 c8R Kg3 d6 f4 d7 a4 h7 a3 b6 f3 e5 e2 Kd2 f2 Kc3 e1Q+ Nd2 Ra6 b7 Rh6 b5 Qe8 d8N Qf7 e6 Nf6 e7 Qh5 e8N Nc6 b8R Rg8 h8Q Nh7 b6 Qe3 b7 Ne7 Rc6 Qe6 Qg7 Nf6 Kb4 Qc8 Nc7 Nd7 Rg6 Nc5 c4 Re8 Bh3 Nb3 Ne4+ Kh4 Bf4 g3 Bd2 Nc1 Ne2 g4 N2c3 Qe5 Na4 Rh5 Bc3 Qf4 Ra2 Rg5 Rd2 Qf8 Ra8 Rh5 Raa6 Rc5 Rad6 Re5 Rd7 Qa8 Bd4 Qg8 Bb6 Qe6 Rd4 Qf5 Ba5 Qfc8 Re2 d2 Re3 Rf8 Red3 Rf3 Rd7 Re3 R3d4 Rc3 Qg8 Rc2 Qd5 Ra2 Qd6 Nb3 Qc1 d1Q Qf4 Qg1 Qf5 Nc1 Bg2+ Qh2 Bf3 Kh3 Qff6 Rd5 Qg5 Re5 Bd1 Kg2 Bc2 Qg1 Rhh6 Qf1 Nd2 Ra1 Bf5 Ne2 Be6 Nc1 Bg8 Ra2 Ne4
7Q/p1BKP1pp/1p2NB1b/1Q1N1k2/1P3rNB/1ppR1BR1/4r1n1/N1b5 b - - 0 1 illegal: Other
5rn1/4r2R/bQ1bnbB1/2Q1PRQP/nQ2kbN1/1KBB1q2/8/2Nr2bB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 Kc3 Ke6 h4 Kf5 e4+ Ke6 b4 d5 b6 g5 b5 f5 c6 a5 b7 d4+ Kb3 d3 c4 g3 b6 d2 c7 f4 c5 g4 c6 f3 Nh3 g2 Nf2 g1B Bc4+ Qd5 Bb2 g3 Ng4 f2 Bc3 f1R Qc1 d1N Qg5 g2 Nd2 Nd7 b8Q Rh7 b7 Bb6 h5 Re1 Rf1 g1B Rf5 Bbe3 Qa7 Bb4 b8Q Nf8 Qab6 Ba6 c8Q+ Rd7 c7+ Bd6 Qb4 Bf4 Q8b6 Nb2 Rc1 Re2 Rf1 Rb8 Rf7 Re1 Rh7 Na4 Rf3 Rd1 Rf1 Ng6 Qf8 Rbd8 c8B Re8 Bb7 Rde7 Q4c5 Ra8 Qb8 Nf8 Rf3 Kd7 Qbb4 Ne6 Qba7 Rf8 Qab6 Bg3 Rf5 Bf4 Nf3 Qd3 Ne1 Qf3 Nd3 Nb2 Kc2 a4 Nc1 a3 Kb3 a2 Ba8 a1B Bad5 Nd8 e6+ Ke8 Bf1 Qe2 Nh2 Rb7 e7 Kd7 Bh8 Na4 Ng4 Ne6 Bg2 Bc3 Bc4 Qf3 Bh1 Ra7 Bd4 Bb2+ Be3 Bc3 Bd2 Bf6+ Bc3 Rb7 e5 Ra7 Qf2 Rb7 Qd8+ Kc6 e8B+ Rd7 Bg6 Re7 Bb5+ Kd5 Bc4+ Ke4 Qdb6 Rd7 Qfc5 Re7 Bd3#
k7/2Nq1n1q/B1q5/Rq2bB2/n6Q/N1qN2BR/b2B2PP/1brrN1QK b - - 0 1 illegal: No proof kernel
4Bb1R/1qRB1NQ1/1RrB1r2/4Q1R1/5bnb/K1n1bnqB/2PNP3/5bk1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 h4 Ke4 e6 f5 h5 a5 b6 d5 h6 g5 e7 d4 e8B d3 c6 a4+ Ka2 d2 b4 Ke3 h7 Kf2 b5 f4 b7 a3 b6 f3 c7 g3 Bb5 g4 Bg2 Qd6 Nc3 Nh6 Bd3 Ra6 Nd5 Nc6 b8Q Ne5 b7 Rc6 Bf1 g2 Qa8 g3 b8R Bh3 c8B Nhg4 Qa5 Rg8 h8R Rg6 Bdf5 Rf6 Nc3 Qe7 Nb5 Qb7 Kb3 a2 Rb1 a1B Bg6 Bd4 Bd7 Be3 Ba3 Bf4 Qc1 d1N Rc8 Nc3 Qb2 Ke3 Bh5 f2 Nf3 g1B Bhe8 g2 Nd2 Nf3 Bd6 Bgh2 Ka3 g1B Rh5 Bhg3 Rc7 Bh4 Rg5 Bg2 Qa1 Bh3 Bg2 f1Q Rb2 Kf2 Qa7+ Nd4 Qc5 Qe1 Qe5 Nf3 Bf1 Bhg3 Rh2+ Bg2 Rh8 Bh4 Rb3 Bh1 Bh3 Bg2 Bb4 Bf1 Nd6 Bgh2 Rb1 Be3 Nf7 Bhf4 Bd6 Kg1 Rb6 Qg3 Qb2 Re6 Qg7 Rh6 Qb5 Rf6 Qe5
r4Q2/B2n1R1q/kbqBN1Q1/2b2P2/3NN1R1/Bb3q1r/3b2Pn/NB1b2K1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 h5 Kf2 e5 b4 d5 c4 Kd7 g6 Kc7 f6 Kb7 c5 a5 b6 d3 c6+ Ka6 b7 a4 f7 d4 g7 a3 c7 h4 f5 e4 Qg4 a2 Na3 h3 Nc2 h2 Ne2 d2 Qg6+ Nf6 g8N d1Q Ba3 d3 Ned4 Bc5 f8N Qd7 Ne6 Rh3 Rc1 Qh5 Na1 Qc6 Rc4 d2 Bd3 d1B Bb1 Nbd7 b8B e3+ Kf1 Bb7 c8Q Ng4 Bd6 Bb3 Nf6 e2+ Ke1 Bd1 Qf8 Qh7 Ne4 Qh5 Rg1 h1Q Rf1 Nh2 Kf2 Bb3 Rfc1 Qd1 R1c3 e1B+ Kg1 Qdf3 Rc1 Bd2 b5+ Kb6 R1c2 Qh7 Rb2 Ka7 b6+ Ka6 Rb4 Bd1 R2b3 Bc8 b7 Bb6 b8B Bb7 Nc2 a1B Ba7 Bac3 Rc4 Bb4 Na1 B4c5 Rbc3 Qc8 Rd3 Bd5 Rb3 Qc6 Rb2 Bba5 Rb7 Bab6 Rb4 B5b3 Rc4 Ne5 Rf7 Nd7 Rc3 Qf4 Rg3 Qf3 Rg4
1r3qN1/RN2bb2/1K1BB1n1/1n1rP3/Qn4Q1/N2rn2R/1QPQ1k2/2N3qn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kg4 h4 Kg3 e4 f5 b6 g5 Kb5 d5 e6 a5 h6 g4 e5 f4 h5 a4 b7 a3 h7 a2 e7 f3 e8Q d3 h6 d2 Rh4 d4 Qe1+ f2 Bh3 d1N Ba3 d3 Qd2 f1N Ne2+ Kf2 Rh5 g3 Be6 g2 Rh3 g1N Nc1+ Ne2 Qd7 Qe7 Kb6 Nfe3 b5 Ra5 Bd6 Nc6 b8N Nc3 Na6 Nb4 Nc5 Qf6 Qc6 Be7 Na3 Qf8 Nb7 Bd7 Qe4 Be8 Qg4 Bh5 Kc7 Bf7 b6 Na6+ Kc6 Rd5 Qa4 Nb5 Qg4 Nf6 Qa4 Rg8 h8N Ne4 h7 Ng3 Ng6 Nh1 h8Q Nb4+ Kd7 Nc4 Qh5 Ne3 Qg4 Rh8 Na5 Rg8 b7 Rh8 b8Q Rg8 Qc3 d2 Nb7 d1R Qb2 R1d4 Qd8 Nf4 Kc8 Rd3 Kd7 Na6 Kc6 Nb4+ Kb6 Rh8 Nh4 Rg8 Nf5 Ng6 Nh6 Rh8 Rb1 a1Q Ng8 Qa2 Ra1 Qb1 Ne2 Qg1 Nc1 Rc3 Qc8 Rcd3 Qcc3 Rd2 Ra2 R2d3 Qd2+ Kf1 Qa6 Qa8 Nb1 Rc5 Nh6 Rcd5 Ra5 Qg8 Na3 Qg7 Ra4 Rb8 Ng8 Qf8 Qh2 Nc7 Qb5 Ke1 Ra7 Kf1 Qa4 Nb5 Qhg2+ Ke1 Qd2+ Kf1 Ne2 Kf2 Nc1+
1nB1KR2/1qQQb3/n3PBR1/1P1R2r1/bn2N1Bk/R3N3/B2bnn2/4r1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 h5 Ke4 c5 Ke5 a5 d4 f5 b4 c4 e4 h4 g4 a4 g6 c3 b6 f3 d6+ Ke8 d5 f2 g7 Kf7 b7 Kg6 g5 c2 b5 f4 d7 h3 Ke6 f3 d6 Kh5 Kf7 a3 e5 a2 g6 h2 Na3 Nf6 g8B Be7 g7 Kh4 Bb2 c1B Be2 f1Q Nh3 f2 Nc4 Qc7 d8Q Bd2 d7 Qg1 Ne3 f1N Ng5 Na6 b8R Ng3 Ne4 Qb7 Qc7 Rh5 d8R Bf5 Rd5 Nd7 Ke8 Rg5 Bg4 Ne2 Be6 Bh7 Rd8 Ndb8 g8B Bf5 Bc8 Be6 Rc1 a1N Rc3 Nc2 Ra3 Ncb4 R8d6 Bf5 Rg6 Ra7 e6 Ra8 Bh7 Ra7 Bf6 Ra8 Nd6 Bc2 Ne4 Ba4 Rd8 Qg3 Rf1 h1N Rd5 Qg1 Rf3 Bc3 Qd4 Bd2 Qa7 Nf2 Qd7 Qc6 Qc7 Qb7 Bh8 Nc5 Rf8 Ra6 Bg7 Rc6 Bd4 Nca6 Bf6 Rc1 Nd6 Qc6 Rh6+ Kg3 Bb1 Re1 Ba2 Qb7 Rg6 Kh4 Ne4
2qn1BQ1/R1bkBB1b/P6q/1N2R3/2nN1bKn/NQ1b2b1/1r1rP2B/N7 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 c5 Kg3 f5 d4 b5 h4 g5 a4 g4 h6 b3 d6 b2 a5 b4 h5 c4 h7 c3 e6 c2 h6 b3 e7 Ba6 d5 Bd3 Nf3 Qc8 Bf4 c1B Ne1 Nc6 Nc2 Kd7 e8N Nd8 Nc7 Rb8 Rh5 Ne7 Nba3 b1Q Bg2 b2 Ncb5 Ng6 Bh1 Rg8 h8Q Nh4 h7 Qa2 Be5 b1B Qg7+ Be7 h8B Qac4 Qf8 Q4c6 Bhg7 Bf6 Bf4 Be5 Be4 Rh8 Qg8 Rb7 Bf8 Rh7 Nc7 Rb2 Ncb5 Be3 Bf3 Bb6 Ra2 Bc7 Na1 Rf7 Qb3 Q6a6 Kh2 g3+ Kh3 g2 Bh2 f4 Kg4 g1B Be4 f3 Bg6 Rh7 Bf7 Bf4 Re5 Qc6 a6 Rd2 Rc2 f2 Rc5 Qb6 Rc6 Qe3 Rb6 f1N Rb7 Bf2 Ra7 B2g3 Qc4 Ne6 Qb3 Kd8 d7 Rb2 Be8 Nd2 Bf7 Bbc2 Bg7+ Ke7 d8B+ Kd7 d6 Nc4 Be7 Nd8 Bgf8 Rh5 Re6 Rd5 Re5 Kc6+ d7 Bh7 Rh5 Rd2 Rg5 Bcd3 Re5 Ne6 d8N+ Kd7 Nc6 Nd8 Bg1 Qb6 Ncd4 Qh6 Bh2
q7/N1b1QBPN/3RBPrb/Bbk1QQb1/Rr3qn1/n6K/1q1Q4/5B1b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 e5 Kf2 Ke7 Kg3 Kd6 b4 a5 c4 h5 f6 e4 g6 a4 g7 e3 f7 e2 f5 e1B+ Kh3 h4 g4 d3 g5 a3 g6 a2 b6 d2 b7 Bg3 b5 Nc6 b8Q+ Kc5 b6 d5 b7 d4 Nc3 d3 Qc7 Rh6 b8Q Ra4 Nb5 Nf6 g8B Ba6 Nf3 Rb4 Ng5 Ng4 Na7 Bb5 Nh7 Qd6 Qe1 d1Q Bd2 Qe2 Qe7 Nd4 Qf2 Bg7 f8Q Bf4 f6 Bg5 Qfd8 Bf8 Bc3 d2 Bf7 d1Q Qf5+ Qe5 Rh2 Nc2 Rd2 Na3 Qdd7 Qa4 g7 Rg6 Rd4 Bh6 Rad1 a1B R1d3 Bb2 Be1 Rb3 Ba5 Bbc1 Bd5 Rb2 Qbe8 Qf4 Qee5 Rb4 Q8e7 Qb3 Qdd8 Qb2 Qdd7 Nc2 Ra3 Bd2 Ra4 Na3 Qc8+ Bc6 Q7e6 Qd8 Bf3+ Qd5 Qd3 Bd6 Qe7 Qe4 Qcf5 Bdg5 Qd2 Be8 Nc8 Kc6 c5 Bc7 Na7+ Kb7 Bh1 Qf4 Bhg2 Qde4 Rd6 Bb5 Bh1 Qc6 Bd5 Ka6 Rd7 Qa8 Rd6+ Bb6 c6 Bd8 Kg2 Bb6 c7 h3+ Kh1 h2 Kg2 h1B+ Kh3 Qb8 c8B+ Qb7 Nc6 Bc7 Bce6 Qa8 Bf7 Be2 Be8 Kb5 Na7+ Kc5 Bef7 Bb5 Bde6+
2Nb2QN/2q2Pr1/1Q1bq2b/1Q5n/KN2bB2/R1Q3q1/BPnb4/1k2N1rR b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 d4 Kd7 Kd2 Kd6 Kc2 a5 Kb3 e5 h4 g5 f4 c5 h5 g3 f6 g2 h6 e4 h7 a4+ Ka3 g4 f7 e3 b6 g3 b7 c4 f5 e2 f6 e1B Nd2 c3 Qc2 Ra7 Ngf3 g1B Bc4 g2 Ba6 Qc7 Ne5 Nc6 b8Q Bb7 Qd1 c2 Nd7 Nb4 Nf3 Bd2 Bc4 Bh2 Qc8 g1Q Nb6 Qg3 Qe2 Be7 Ba2 Bd8 Qb5 Bh6 Be3 c1B Ne1 Bd2 f8Q+ Ne7 Qd3 Rg8 h8N Rg6 Qf7 Nf5 Qb5 Ng7 Qg8 Nh5 f7 Rg7 Qh3 Ra5 Qbf1 Rc5 Qb5 Rc1 Qc8 Qe7 Qc3 Qe6 Ng2 Rg1 Ne1 Ke7 d6+ Kf6 d5+ Kf5 d7 Ke4 Nc8 Qc7 Bb3 Bd6 Bf4 Nc2+ Ka2 Bdg5 d8N a3 Nc6 Bd8 Nb4 Bc6 Bc4 Ba8 Kb3 a2 Ka4 Bc6 Rc1 a1Q+ Ba2 Bb7 Ned3 Bc6 Rf1 Qc1 Rf3 Qe1 Rfh3 Qg3 Ne1 Bf8 d6 Ba8 d7 Bd6 Be5 Bc6 Nbd3 Ke3 Bf4+ Ke2 Nb4+ Kd1 Bb3 Kc1 Ba2 Bh4 d8Q Be4 Qdf6 B4g5 Qfd4 Bge7 Qdb6 Bd8 Qf6 Qg2 Ra3 Qg3 Bc4 Kb1 Qc3 Bh7 Bd5 Be4 Ba2+
1B1bK2k/rQ4qB/N4rRn/2N2n2/2b5/1R2BBq1/1qQ1PRrP/R1rn4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Ra6 g5 Kf2 c5 Kg3 f5 d4 Kf7 b4 Kg7 b6 c4 b7 c3 d6 c2 e6 Ne7 d5 Kh7 d7 Nbc6 b8Q Ng8 e7 Qb6 d8R Nh6 e8B Be6 b5 Nd4 d6 Bc4 d7 Be7 Nc3 Rf8 Na2 Kh8 Bg2 Qc7+ Rd6 a5 b6 a4 b7 a3 Bg6 Ra7 Nb4 a2 Na6 a1Q Nf3 Qb2 Ne5 Bf6 Nd3 f4+ Kf2 f3 Kg3 f2 Bh7 Be7 Be3 Bf6 Qd2 Be7 Ra1 c1R Re8 Bf6 d8R Qg7 R8d7 Bd8 Re5 Rf7 Rf5 Rf8 Be4 Rf7 Rg6 Rf6 Kg2 g3 Kh3 g2 Qc2 g1Q Ndc5 Qe1 Qc8 Qg1 b8B Qe1 Rb7 g4+ Kg3 Qg1+ Kf4 g3 Ke5 g2 Rb3 f1N Bg5 Ne3 Rf2 Nd1 Qb7 Rf5+ Kd6 Rf6+ Ne6 Ndf5+ Kc6 Qg8 Kd7 Qf8 Bf3 Qg7+ Ke8 Qe1 Rf1 g1R Be3 Rg2 Nec5 Qg3 Rf2
b1krNq1Q/B1B1R3/R7/B5n1/2BP3n/bq1qn1KN/r1N2PN1/1Q2n2r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 g4 c5 b4 a5 d6 e5 b6 h5 f6 h3 f7 c4 b7 e4 b5 h2 g5 e3 b6 h4 g6 c3 g7 a4 Bd3 e2 Bc2 h3 Ba3 Nh6 g8N Nf5 Bb3 c2 Bb4 c1Q Ba5 a3 Bc4 a2 Na3 Qe3 Qb1 Nh4 Nc2 Na6 b8B Bb7 Ba7 Kc8 Nf6 Nc5 Ne8 Qb3 Kd2 e1N Ke2 Be7 f8N Ne4 Ne6 Ng5 Nf4 Bd5 Ng2 Bc6 Ng7 Qf8 Ne8 Bb7 Bb8 Ra6 Ba7 Ba8 b7+ Kd7 b8B Kc8 Nf3 Rg8 Rg1 h1Q Bbc7 h2 Rf1 Rh8 Ng1 Rg8 Nh3 Qg1 Ngf4 Qgg3 Ng2 h1R d7+ Kb7 d8Q Ba3 Qf6 Kc8 Qd1 Qgc3 Qd3 Rh8 Ke3 Rg8 Kf4 Qd2+ Kg3 Qd1 Rb1 a1N Qh8 Qe2 Rb2 Qd2 Ra2 Qdc3 Nb4 Nac2 Ra1 Ne3 Qb1 Qd3 Nc2 Nef3 Rd1 Ne1 Ra2 Rg7 Rd2 Rd7 Re2 Rd8 Rb2 Qbc3 Rb6 Qb3 Rd6 Rb6 Rf6 Rb4 Rh6 Ra4 Ra6 Be7 Rf6 Nd1+ Re3 Ra2 Ra6 Ba3 Rf3 Ne3 Rf7 Qb8 Rg7 Qbb3 Re7
1q5R/3Nk2n/1Qqb3r/1B1B1n1b/Rb1PK2B/2BP1RrR/r2Q4/n2N1r2 b - - 0 1 legal: proof: h4 d5 e4 b5 a4 g5 axb5 gxh4 c3 f5 exf5 d4 cxd4 Qd5 Ra3 Qd7 Ra1 Qd8 Ke2 a5 Kf3 h5 g4 e5 b4 c5 f6 a4 g5 h3 g6 c4 g7 h2 f7+ Ke7 b6 c3 b7 a3 b5 c2 b6 a2 Nh3 h4 Ng5 h3 Bb5 Qe8 d3 Qc6+ Ne4 Qc7 Bg5+ Nf6 g8B c1R Bh4 Nc6 b8R Rh6 Qd2 Rg1 b7 Bg4+ Ke3 Bf3 Nbc3 Bh5 Nd1 Rg3+ f3 Qd8 Rc8 Qd6 b8Q Ra6 Qb6 Qb8 Nc5 e4 Nd7 Qb7 Kf4 e3 Kf5 e2 f4 e1B Rd8 Bg7 f8R Qb8 Bd5 Ra8 Rh8 Bf8 Rf1 h1Q Rf3 h2 Re8+ Kd6 Ree3 Nh7 Ke4 Ra7 Nf6 Ke7 f5 Ra3 Rc1 a1N Rc4 Ra2 Ra4 Qg2 Re2 h1R Rf2 Qh3 Rh2 Qg2 Rh3 Rf1 Ne8+ Kd7 f6 Bd6 f7 Qh1 Nf6+ Ke7 Qe3 Beb4 Qf4 Nd8 Qd2 Ne6 f8B+ Kf7 Bb7 Ng7 Be7 Nf5 Bd8 Be7 Bc7 Bec5 Bd5+ Ke7 Bf4 Rgg6 Bfg3 Bd6 Be1 Rgg1 Qc2 Rg3 Bc3 Qg2 Qc1 Qc2 Qd2 Qc1 Bb2 Qc5 Bc3 Qc6 Nd7+
N1qQR1Qb/2qn4/q2QK1N1/2B5/P2rnRBP/1Q5n/1b3Nbk/b1N3r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Ke4 Kg5 d4+ Kh4 a4 c5 f4 g5 f6 b5 f5 b3 h3 Kg3 h6 b4 d6 g4 Kd5 e4 h7 b2 h4 b3 f7 c4 d7 e3 f6 c3 Ba6 c2 Bd3 e2 Ke6 e1B d5 Bg7 f8N Bc3 f7 Nf6 d6 Ne4 Nh3 Qc7 Ng6 Rg8 f8Q Bh8 Rf1 Bb7 d8N Kh2 d7 g3 Nd2 b1Q Rf4 b2 Qd6 g2 Nb3 g1N Nf2 Nh3 Be3 c1B Bc5 Qc2 Be2 b1Q Bg4 B1b2 Nc1 Qd3 Qc2 Qa6 Qb3 Qc2 Ra3 Bce5 Ra1 Qc3 Ra2 Ba1 Re2 Qc8 Re3 Qca5 Re1 Qac7 Re2 Beb2 Re3 Bhg7 h8Q Ra7 Qh7 Bh8 Re2 Rg7 Qg8 Bd5+ Kf5 Rb7 Ne6 Rb4 d8Q Nd7 Re3 Rd4 Re2 Q7b7 Nc7 Qbb8 Na8 Qbc7 Ne7 Bc6 Ke6 Rg5 Ng6 Bb7 Bf3 Rg1 Bh5 Nc3 Re5 Bg2 Bg4 Ne4 Kf5 Bh1 Re8 Bg2 Ke6
4rq2/NB1R4/Bn2kBb1/KP2QRq1/2b1N1Qb/1QQ2B2/P1n1nr2/3rn3 b - - 0 1 illegal: No proof kernel
B2KR2k/1rQ1R3/6b1/RPN1Qnr1/4R2B/4qPb1/n1rb3n/n2QQqN1 b - - 0 1 illegal: No possible last move
2b4R/NnBnqQ2/1B2B1PQ/3BQ2R/K2QNb1q/1nP3rr/b2q4/6kq b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 h5 f4 a5 g4 e5 g6+ Kf6 g7 d5 b6 a4 b5 d3 Kc3 e4 b7 a3 Kb3 d4 c3 d2 b6 h4 Rh3 a2 Bc4 e3 Be6 e2 Na3 e1Q Nb5 d3 Na7 Qe7 Ka4 Nc6 b8B Nd8 Bc7 Nb7 Rb1 a1N Rb5 Nb3 Bd5 Nh6 g8B Nf7 Ba3 Rh7 Bc5 Ne5 Bge6 Nd7 Bf2 Bh6 g5+ Kg7 f6+ Kg6 Rh2 h3 f7 Rb8 Qg4 d1Q f8Q d2 Rh1 h2 Nh3 Qc1 Bd4 d1B Nf2 Qcd2 Qh4 Nd6 b7 Be2 Bc5 Bc4 B5b6 Ra8 b8Q Nb7 Qg4 Rh8 Qg1 Kh5 f5 Kh4 f6 Rg8 f7 Qe4 Ng4 Kh3 Qd4 Kg2 Nf2 Rg6 Qe8 Rg7 f8Q Rh7 Rf1 h1Q Qef7 Qh4 Rh1 Rh8 Rh3 Kg1 Rh2 Qh1 g6 Bf4 Ra5 Rh5 Qh6 Rg5 Bf3 Rg3 Rh5 N3a5 Bfd5 Ba2 Bd8 Nb3 Qbe5 Rb8 Bdc7 Nd6 Bc5 Rb5 B5b6 Nb7 Qd6 Rc5 Q4e5 Rc4+ Qb4 Re4 Qbd4 Ree3 Qhg7 Qg4 Rh6 Rg2 R2h5 Qgh4 Rh8 Rh3 Qh6 Rgg3 Ne4+
Kn1Qbr2/2Qr2R1/1PBR1N1P/nb1q2q1/1BQ1bkBq/r5b1/3N4/1Q1B4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 g5 h4 g4 c4 d3 h6 d2 b6 a4 b7 a3 c5 g3 b5 f6 h7 d6 c6 a2 b6 g2 h5 Nh6 c7 Ra6 Ba3 Be7 Bb4 Rf8 h8Q Ra8 Qg8+ Nf7 h6 Bd7 c8B Ra7 Nh3 g1Q Nf2 Qg5 Ng4 d5+ Kd4 Kf5 e4+ Kf4 e6 f5 e5 Bd6 e7 Ba4 e6 Be8 Be2 Ne5 Nf6 Nc4 Rg1 Na5 Rg2 Be5+ Kc5 d4 Rg3 Qh4 Rg7 d3 Qg1 d1B Nd2 Bc2 Rd1 a1R Bd7 Bg6 e8B Ra3 e7 Ba4 Qb3 Bc6 Qd4+ Be4 Qdc4 Qg5 Bc6 Qh4 Bed7 Be8 Qb1 Qg5 Nf1 d2 Bg4 Qh4 Ba4 Qg5 Bdc6 Qd4+ Kb5 Qf2 Bb3 Qfh4 Bc2 Bd4 Ba4 Bf2 Bb3 Bg3 Kc5 Bf7 e8Q Bh5 Qd8 Be8 Re1 d1Q Nd2 Qf3 Kd6 Qd3+ Kc7 Qd5 Rg1 Ke3+ Kc8 f4 Bbd1 f3 Rd7 f2 Rd6 f1B Qc7 Na6 b8Q Kf4 Qd8 Rd7 Qbc7 Nb8 Rg2 Nb3 Kb7 Na5+ Ka8 Qg7 Qd4 Bb5 Qc4 Qe7 Rh2 Qhg5 Rh5 Qh4 Rg5 Qee5 Rg6 Qeg5 Rg7
1nR1NQ2/4kPR1/1N3R2/N1Rrn1r1/1bq3r1/rbPBnQBK/q7/1b1N4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 f4 d5 Kf2 a5 Kg3 g5 b4 e5 h4 g4 c3 d3 b6 d2 b7 d4 h6 a4 f6 e4 b5 a3 b6 a2 h5 d3 f7+ Kd7 f5 e3 f6 e2 h7 e1R h6 Ra7 Nh3 Ra4 Na3 Qe8 Nc4 Bg7 f8R Ra6 Qf3 d1N Rg1 d2 Na5 Qe4 Bd3 Ne7 Nf2 Rg8 h8N Nec6 h7 Qc4 Nf7 Re5 h8Q Rd5 Nd6 Ne5 Ne8 Ne3 Nd1 Bh6 Kh2 g3+ Kh3 g2 Ba3 Bf4 Bd6 Rg4 Rb1 a1Q Rb5 Bg5 Rc5 Qaa2 Rf7+ Kd8 Qf8 Bf5 Rf1 g1R Rg7 Bg6 f7 Be7 Rf2 Rg5 Rf1 R1g4 Rf2 Nbc6 b8N Be4 Nd7 Nb8 b7 Ra8 Nb2 d1B Nb6 Bb3 Nd1 Ra6 Be2 Bb1 Bd3 Ng6 Bg3 Ne5 Qh1 Ra8 Rf6 Ra7 Qf3 Ra8 Rcc6 Bb4 Rc5 Ra7 Qg8 Ke7 Qh8 Nbd7 b8R Ra6 Rbc8 Nb8 Nb7 Ra4 Na5 Ra3 Qf8+
1nr1qkbN/3P4/1NRKB3/1Q3B2/1R2q2B/1nb1BN2/r3PQq1/3bq1rN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 a5 Kf3 f5 g4 h5 b4 c5 d4 a4 d6 h4 d7+ Ke7 g6 c4 g5 a3 b6 c3 b5 h3 d5 a2 b7 h2 b6 c2 d6+ Ke6 g7 Kf7 g6+ Kf6 Nc3 Ra5 Be3 c1Q Bh3 Ne7 g8N+ Kg7 Nh6 Qe8 d8B Bd7 Rb1 a1R Ne4 Qc2 Qe1 R5a2 Rb4 Ba4 Qf2 Nec6 Bh4 Na5 Ng3 Nb3 Nf7 Be7 Bg4 Bf6 Bh3 Rg8 Nh8 Bc3 Bg4 Kf8 Bh3 Nd7 b8Q Re1 Qb7 Nb8 Qa6 Rf1 b7 Rfa1 Qb5 Rf1 Kg2 Qce4+ Nf3 Rc1 Re1 h1B+ Kh2 Rb1 Rc1 Bg2 Rc2 Rg1 Bg4 Bh3 Nh1 Bg2 Nd2 f3 Kg3 Qd7 Bh3 Qde8 Rc1 f4+ Kg4 Bg7 Rc6 Bb2 Kg5 Bc3 Bf5 Bh3+ Qg3 f2 Nf3 f1Q Qg2 Nd4 Kf6 Qe1 Qg3 Bd1 Qf2 Na6 b8N Nb3+ Ne5 Qd8+ Ke6 f3 d7 Bg2 Kd6 Qe8 Nc4 Bh3 Nb6 Bg4 Qg2 f2 Qf3 f1Q Qf2 Kg7 Bd2 Rf8 Be3 Kg8 g7 Qfg2 Rc5 Bh3 Nc6 Nb8 Ne5 Bg4 Rc7 Bh5 Rc6 Bf7 Nf3 Bd5 Ng6 Kf7 g8B+ Kg7 Bge6 Rg8 Nge5 Kf8 Bg4 Rh8 Bef5 Bg8 Nf7 Na6 Be6 Nb8 Bgf5 Rh5 Bh7 Qeg6 Rc7 Qe4 Nh8 Rc5 Bhf5 Rc4 Rb7 Rc8 Rc7 Qgf1 Rc5 Qg2 Rc6
4Q2R/r1PrB2K/2nb3N/3b1B2/N2RP1Qn/1Q3bk1/3q1Rq1/r2R1qQq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 a5 b4 f5 e4 d5 h4 a4 c4 a3 c5 d3 h6 a2 h5 d2 h7 d4 h6 d3 c6 g6 c7 Qe8 Kg5 f4 b6 f3 b5 f2 b7 Nc6 b8Q Bc5 b6 Bb7 Nc3 Qc8 Na4 Ra6 Ba3 Qd7 Ne2 Ra7 Rh2 Nge7 Bh3+ Nf5 Qg1 d1Q Ng3 f1Q Rf2 Rd8 h8R d2 h7 Bd6 Rb1 Qde2 Rd1 a1R Bg4 Ba8 b7 Qg7 Bc5 Rd7 Rd8 Qd3 h8Q Qh7 Ba3 Qh1 Qh5 Qd4 Bf3 Nh4 Kh6 g5 Nf5 Qb4 Bg4 Qb2 Bh3 g4 Bb4 g3 Bg4 Ne7 Kh7 g2 Rh8 Qc3 Qbe8 Qe3 b8Q Bd5 Bc5 Qd4 Qb3 Qb4 Rb1 d1B Nh6+ Nf5 Bh3 Bf3 Rd1 Qd4 Rfd2 Qe3 Rd4 Qd2 Rf8 Bg4 Bb4 Nh4 Rf2 Nf3 Qh2 g1Q Qf8 Qgg2 Qg1 Nh4 Qd8 Bc5 Ba3 Rd6 Qf8 Nc6 Qa8 Ke7 e6 Bf3 Bf5 Kf6 e7 Ke5 e8R+ Kf4 Rh8 Kg3 Qae8 Rd8 Bb4 Be7 Ba3 Rd7 Bc5 Bg5+ Be7 Bf4 Bh3 Be5 Bf5 Bd6 Qg4#
qB2R3/BQP1nN2/Kn6/bN3P1r/R2r4/1b3qk1/1q3qNn/QBbB3N b - - 0 1 illegal: No possible last move
1BRrNR2/2Qq3P/bRn1n2b/R7/2B1k1N1/bn3QK1/r3NP2/1n1N1bn1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 c4 Kf6 b4 Ke5 b6 a5 b5 d5 b7 g5 h6 d3 h5 g4 h7 d4 c5 g3 f6 g2 f7 a4 b6 a3 c6 d2+ Ke2 d3+ Kf3 a2 h6 Nf6 c7 Ne8 Kg3 Qd7 Nc3 Nc6 b8Q Ng7 b7 e6 Rb1 a1N Rb6 Nb3 Qa7 Bb4 b8R Rd8 f8R Bd6 Qg4 d1B h8N d2 h7 Be2 Ne4 d1N Ng6+ Kd5+ Bf4 e5 Rh5 Ne6 Qb7 Ra2 Nc3+ Kd4 Rhf5 e4 Ra5 e3 Ne5 Ba3 Qf5 Bb5 Ng4 e2 Qa7 Bca6 c8N e1B Nd6 Be2 Rc8 Bd2 Ne8 Bed3 Bb8 Bh6 Qc7 Be2 Na4 Nc3 Nb2 Nb1 Nd1 Bed3 Qf6+ Ke4 Be2 Bc2 Bb5 Bd3 Bc4 Bf1 Ne2 g1N Qf3+
Q2q2B1/1q1Q4/bb1q3R/1Q1rk3/1N4b1/1P2nBNn/r1Q2PR1/2BBq1bK b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 d4 Kd7 g4 Kd6 b6 h5 g6 a5 b7 c5 b3 e5 g5 c4 g7 a4 g6 e3 Rh3 c3 Rg3 e2 Rf3 c2 Bh6 c1Q Nh3 h4 Bg2 a3 Bd2 a2 Bf4 Nd7 b8Q+ Qcc7 Rg3 Nb6 Nd2 Ba6 Bf3 Nf6 g8B Nc4 g7 Ne3 Bh7 Ne4 g8B Ng5 Qb5 Qb7 Bc2 Rh5 Nf1 Be7 Rb1 a1Q Rg2 Qa3 Ng3 Bf6 Qc1 Bh8 Bd1 Bg7 Ng1 h3 Qc2 h2 Nh3 h1B Ra1 Qc5 Ra4 Qcc7 Rc4 Qcb6 Rc7 Bf6 Rh7 Q6c7 Rh6 Ra7 Kd2 e1B+ Kd3 Bb4 Ke2 Bc5 Ke1 Bb6 Ke2 Nc4 Bc1 e4 Kf1 e3 Kg1 e2 Nf4 Ne3 Nd3 Nh3+ Kh2 e1Q Nb4 Qc4 Qe4 Qcc6 Qc2 Kd7 d6 Rd5 Ba3 Be5 Bc1 Ke8 d7+ Ke7 Qb1 Qd6 Qc2 Rc5 d5 Ra8 Rh7+ Kf6 Rh5 Bf4 Rh4 Ke5 Rh6 Q8b8 d8Q Q8c7 Qc8 Qcd8 Rg1 Bg2 Qcd7 Bf1 Kh1 Be2 Bg2 Bg4 Bgf3 Q6b8 d6 Rd5 Qf7 Ra7 d7 Qd6 Qfh7 Nf1 Rg2 Ne3+ Nf1 Bh2 Qhd3 Q8f6 d8Q Bg1 Qa8 Qfd8 Qd7 Bc4 Ng3 Ra2 Qde2 Ba6 Qeb5
2kbqb1Q/Q4nn1/1b4K1/6Q1/N2rP3/2R2n1n/BrQPb1RB/3q1BBN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 a5 Kg4 c5 Kh5 f5 b4 c4 e4 f3 g4 f2 g6 c3 b6 c2 b7 f4 d6 a4 g5 a3 b5 f3 b6 a2 g7 Nc6 b8Q Nh6 g8Q Ra4 b7 Ne7 g6 Rd4 g7 Qe8+ Kg5 Nf7+ Kf6 h5 Bc4 f1N Bb2 c1B Nc3 h4 Qe2 h3 Qd3 f2 Rh2 Nf5 Rg2 h2 Qa7 h1N Nge2 Nh2 Ng3 f1Q Kg6 Qd1 Qc2 Nf3 Na4 Nf2 Nh1 Nh3 b8B+ Kd8 d7 Ba6 Bf1 Be2 Rb1 a1B Bh2 Rh5 Bc3 Bca3 Qh8 Bac5 g8B Ng7 Rb3 Bb6 Bb4 Rf5 Rc3 Rb5 Bbd6 Bb2 Bg1 Ba3 Be5 Rb2 Beh2 Bad6 Be5 Bdc7 Beh2 Ke7 d8Q+ Ke6 Qdh4 Kd7 Qg5 Kc8 Kh7 Nh6 Bc4 Nf7 Kg6 Bd8 Ba2+
2q1q2n/2k1B3/q1n1rR1P/1n1Bn2q/RBQ5/b4B2/R2KN2P/1Qr1NR1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 b4 f5 d4 g5 h6 a5 e5 c5 b6 c4 b5 f3 b7 a4 b6 a3 d6 c3 d5 f2+ Ke2 a2 Qb3 c2 Qb4 f4 Bb2 c1Q Qd4 g4 Ba3 g3 Bg2 Nc6 b8R Nge7 b7 Qe8 Nc3 Ng6 Bb4 Ra6 Bf3 g2 Qc4 f1N Ra8 Ng3+ Kd3 Nf5 b8Q Nfd4 Nce2 Nb5 e6+ Kd8 d7 Rg8 Qe5 Nh8 Qb2 Kc7 d8R Bb7 e7 Rg6 Qb1 Re6 Rd6 Rb6 Nh3 g1N Ra4 Qh5 e8B Qe1 Bg2 f3 Nhf4 f2 Bf3 f1Q Bf7 Qfh3 Ng2 Ba8 Kc2 Rb8 Bg8 Rc8 Bf7 Be7 Kd3 Q3g4 Kc2 Qg8 Kd3 Qc1 Ne1 Qe8 Bg8 Bf6 Bf7 Bb2 Bg8 Ba3 Bf7 Re5 Rf6 Re6 d6+ Kb6 d7 Kc7 Be4 Nf3 Rf1 Qc2+ Ke3 Ne5 Bd5 Bb7 Bg6 Ba8 Bge4 Bb7 Bf3 Qcf5 Qbe4 Ba8 Kd2 Qfh3 Rc1 a1Q d8B+ Kb7 Qg6 Re7 Bg8 Bb2 Bg4 Na5 Qcd3 Qa2 Ra1 Rc1 Ra3 Qe6 Qd4 Qa6 Ra4 Ba3 Qb1 Kb8 Qc5 Bh1 Qc4 Nac6 Bf3 Qhc8 Bgd5 Re6 Bde7 Kc7 Ra2
Q1Qb1q2/n2QR2K/qP2q1RB/1b2bn2/b3kNq1/2QN4/rRP5/3r1BR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 b4 e5 f4 a5 h4 d5+ Kd3 a4 b6 a3 b5 a2 b7 g4 h6 g3 h5 g2 h7 Nc6 b8R Bd7 h6 Bd6 Nh3 g1B Na3 Qf8 Nc4 Nge7 Nb2 Na7 b6 Bc7 Rb1 a1Q Rb7 Bh2 Rg1 Ba4 Be3 Rg8 h8R Bd8 h7 Rg5 Rg8 e4+ Kd2 d3 h8Q+ Rg7 Kc3 d2 Kd4 Qa2 Nd3 Qa3 Qg4 d1B Rb2 Be2 Bd2 e3 Rc7 Kf7 Ke5 d4 f6 Rg5+ Ke4 Rd5 f5 Be5 Nhf4 Qa2 Qgh3 Qc4 R8g6 Qa6 Nb4 Beb5 Nbd3 e2 Rb7 e1Q+ Be3 Bec7 Qg7+ Ke8 f7+ Kd7 f6+ Kd6 Qc8 Bb8 Qc3 Nf5 Re7 Bbc7 Kf3 Bb8 Kg4 Bbc7 Bd2 Qe6 Kg5 Bb8 Nc5 Ke5 Ncd3+ Ke4 Bc1 Nd6+ Kh6 Nf5+ Kh7 Be5 Be3 Qe8 f8Q Q8f7 Qg8 Qf8 f7 Rd7 Ne1 d3 Q8h8 d2 Ned3 d1Q Bc1 Qe8 f8Q Qg4 Qc8 Rd5 Qff7 Qf8 Qe8 Bd6 Qgc3 Be5 Qed7 Rb8 Nb4 Rd1 Nbd3 Rb7 Nh5 Rc7 Bh6 Rc4 Nhf4 Rb4 Rb1 Rb2 Qg8 Ra2 Rb2 Qc4 Qge6 Qb3 Qec6+ Qd5 Q6a8 Qc6 Qab8 Qe6 Qa8+
3NBQR1/KP1B1nBP/8/1bBrbr2/1k2N1bq/2R1RR2/nq4rb/3Q2r1 b - - 0 1 illegal: No possible last move, all moves rejected
k4N1b/5Q1R/q1Rq2R1/1bB1n3/1R1bNK1P/2P2B2/n1p2nqr/Nr2QN2 b - - 0 1 illegal: No proof kernel
N3QRbb/nKRr2k1/3N2BN/6rp/BP2r2Q/bBP2qN1/7B/3qn2q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 e5 Kc4 h5 Kd5 a5 g4 a4 f4 a3 b4 d3 g6+ Kf6 c3 a2 b6 d2 b7 e4 g5+ Kg7 Qe1 d1Q+ Bd3 e3 Na3 d6 Nb5 e2 Qh4 e1R Ne2 Nh6 f6+ Kg8 f5 Qb6 f7+ Kg7 Ng3 Qc7 Bf4 Qc2 Rf1 Be7 f8N Qf2 Nd7 Qd8 Nb6 Nc6 b8Q Ra7 Na8 Rd7 Bc2 Rh7 Ba4 Re4 Rad1 a1B f6+ Kh8 f7 Bf6 f8N Kg7 Rd4 Nf7 Rc4 Na7 Rc7 Bb2 Be5 Rh8 Nh7 Qf3 Bf4 Bd4 Nf6 Ba3 Ng4 Ne5 Nh6 Nd3 Rf2 Qe7 Rf1 Ba6 Qe8 Rg8 Rf2 Ne1 Rf1 Nc8 Kc6 d5 Nd6 Bc4 Kb7 Na7 Rf2 Be5 Rf1 d4 Rf2 Kh8 g7+ Kh7 Rf1 d3 Rf2 d2 Rf1 Rh8 g8B+ Kg7 g6 d1Q Bh7 Rf8 Rf2 Rf5 Rf1 Rg5 Rf2 Kf6 g7 Bg8 Bg6 Qe6 Rf1 Qh3 Rf2 Qhh1 Rf1 Bh7 g8B Kg7 Bgb3 Bg8 Ne2 Qdd3 Bh2 Qd1 Ng3 Bf6 Bgf7 Kh7 Rf2 Bh8 Bg6+ Kg7 Rf1 Qg4 Rf5 Qgf3 Rf8
bKnQr2n/BNQ5/2B5/4q1P1/1NRn2kb/PB1qNNr1/3q2pb/5B1R b - - 0 1 illegal: No proof kernel
5R1r/1q1R1K1n/1kB1rB2/BP1p3n/r2RR1n1/N1P2NBb/4Q1q1/2bq3Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 Kd3 Kd7 b4 Kc7 f4 g5 h4 a5 f6 e5 f5 g4 h6 a4 h5 a3 f7 a2 b6+ Kc6 f6 g3 c3 g2 h7 Ra3 h6 Qd6 b7 Bg4 Bf4 Bh5 Qe2 Bg4 Rh4 Bh3 Nf3 g1Q Bg3 Kb6 Re4 Ra4 Na3 Nd7 Rd1 Qc7 b8R+ Qb7 Rd8 a1N b5 Bb4 f8B Qg2 f7 Ndf6 Rd7 Nc2 Bd6 Bc5 f8R Nh5 Rd2 Ngf6 Be7 Rg8 h8B Ne3 h7 Neg4 Bg7 Bb4 h8Q Nh7 Bgf6 Bd6 Rd1 Bc7 Bb4 Bd8 Bg7 Bg5 Bf6 Bh6 Qg7 Bc1 Qg5 Nh6 Qh4 Rh8 Rd2 Be6 Qh1 Ng4 Kc2 d3+ Kb3 Qg1 Bh3 Qg2 Rd1 d2 Kc2 Bf5 Kd3 Nh6 Bg4 Be6 Bf5 Ng4 Bg6 Bf5 Be8 Be6 Re7 Bc8 Bc6 Bf5 Rd7 Be6 Rc4 e4+ Kd4 e3 Re1 Nh2 Ke5 d1Q Rd4 Bh3 Kd6 Ng4 Ke6 Qh2 Kf7 Qg2 Qef1 e2 Re4 Qc2 Rd1 e1R Rdd4 Re3 Qe2 Qd1 Rf4 Re5 Rfe4 Re6 Ba5+
1q1QQ3/2b1nR2/3nB2N/P1QpRbb1/nRqrQq2/3P1k2/1NrB4/R2K4 b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 Nc6 gxh5 Nb8 c4 b5 cxb5 axb4 a4 Kf7 h4 Kf6 f4 d5 b6 c5 b7 e5 d3 g5 h6 e4 h7 g4 h5 g3 a5 g2 h6 b3 Ke2 e3 Rh4 c4 Rh1 c3 Qe1 c2 Nh3 g1B Nc3 b2 Nd1 b1N Bd2 c1Q Ng5 Ne7 Nf7 Bh2 Bh3 Qc4 Nb2 Nbc6 b8R Nd4+ Kd1 Nb5 Rb7 Nd6 Rb4 Rg8 h8Q+ Bg7 h7 Nc3+ Kc1 e2 Nh6 Qb6 Bg4 Bg3 Rh5 Qb8 Bh3 Bd7 Rg5 Rc8 Qd8 Bh4 Rh5 Bg5 h8Q Ra7 Qhe8 Rac7 Qg1 e1Q+ Kc2 Qe2 Qe1 Qf1 Bg4 Na4+ Kd1 Bh8 Bh3 Kg7 f6+ Kh7 f7 Kg6 Be6 Be5 f5+ Kf6 Rb6 Qff4 Rb4 Rb7 Rb3 Rb4 f8R+ Kg7 f6+ Kh7 f7 Kg6 Rh3 Rc7 Re3 Kh5 Nf5 Kg4 Re2 Rc5 Nh6+ Kf3 Re4 Qa6 Re2 Rd4 Rb4 Rc2 Re4 Bg7 Re5 Qc6 Rh8 Qc5 f8Q Qc4 Rh7 Bc8 Qb5 Bh8 Qc5 Bd7 Qfe8 Bc8 Bf7 Bf5 Be6 Bhf6 Rf7 Bh8 Re4 Be5 Re2 Nb7 Re4 Bc7 Re5 Nd6 Qe4+
3k1K2/1n6/RrB1R1P1/1b1R4/Rnp1P1q1/nQ1r2q1/NBN2b1r/1BB2Qq1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 a5 b4 c5 e4 h5 g4 h4 d4 h3 d6 h2 d7+ Ke7 g6 a4 g7 c4 b6 a3 b5 a2 d5 Ra5 g5 Rh5 b7 Ra7 b6 Ra4 g6 Nf6 g8B Nc6 b8B Qc7 d8R Nd7 b7 Ra3+ Nc3 Nb4 Ne2 Nc5 Rd6 Bd7 Nd4 Bb5 Re6+ Kd8 d6 Rh4 Rg1 h1R d7 R4h2 Nc2 Be7 Rg3 Bh4 Bd3 Rb3 Rg2 Bf2 Qf1 Rh3+ Rg3 R1h2 Bf7 Qc8 Be5 Rb1 b8Q Nb7 Be8 Rb3 Rb1 a1N Na2 Rb2 Na3 Nac2 Ra1 Ne3 Bb1 Nec2 Qd6 Qc7 Qdd3 Qd6 Qb3 Qc7 Ke2 f3+ Kd2 f4 Kc3 Qd6 Rg5 Qc7 Ra6 Qd6 Bh8 Qe6 Re5 Qg4 Ree6 Ne3 Kd4 Nec2+ Ke5 Qg3 Qe3 Rb3 Kf6 Rd3 Kf7 Rd6 Bhb2 Rb6 Nc3 Qg4 Ba2 Qg3 Nab1 Na3 Kf8 Nac2 Qd1 Bg1 Qd5 Qg4 Ra4 f2 Ra5 f1Q Qd1 f3 Na3 f2 Bb1 Qd3 Ra6 Kc7 d8R f1Q+ Qef3 Qfg2 Qff1 Bf2 Bc6 Qg1 Rd5 Qdf3+ Kg7 Qfg2 Kf8 Rd3 Ra2 Q2g3 Ra1 Ne3 Qb3 Kc8 Nc2 Kc7 Ne1 Nec2 R1a4 Na3 Na2 Kc8 Nc2 Kc7 Rc5 Kd8 Rd5+
4R2B/1b6/1NNQ1Pq1/1qNq2bN/1Pn1Qr1r/1b3BR1/1r1BpBK1/2k2n2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 f4 Kf6 Kf2 c5 g4 a5 b4 e5 d6 h5 d7 c4 d5 e4 d6 c3 b6 a4 b7 e3+ Kf3 h3 Na3 h4 Nb1 e2 Kf2 a3 Bg2 h2 Nd2 c2 Nh3 a2 Rg1 h1B Nc4 Qa5 d8B+ Be7 d7 Qb5 Bb6 Nh6 d8N Nc6 b8N Na5 Bf3 Be6 Bd2 c1Q Na6 Qc2 Nc6 Raf8 Rg3 Rf7 Rc1 a1R Nc5 Ra2 Kg1 Rb2 g5+ Kg7 g6 Kf6 g7 Ng4 g8Q Ne3 Qh7 Nf1 Ba7 Qd3 Nb6 Bb3 Kf2 Nc4 Rc3 Qd6 Re3 Bd8 Re8 Qd5 Ng5 h3 Nge6 h2 Ng7 Bg2 Qa1 h1Q Qa6 Qh5 Kg1 Bh3 Kf2 Bg4 Kg2 Qg6 Qh1 Rff8 Qh7 Be7 Qh1 Rh4 Nh5+ Kf7 f6 Bc8 f5 Bb7 Be3 Rf4 Bd2 Rh8 Ng7 Rhh4 Nh5 Nh2 Qb1 Nf1 Qd3 Bf8 Qd4 Bh6 Qe4 Bg5 Re7+ Kg8 f7+ Kh7 f6 Kh6 f8B+ Qg7 Qe5 Kg6 Qd6 Kf5 Re8 Qh7 Bg7 Qg6 Qd8 Bc8 Bh8 Bb7 Ne7+ Ke5 Qd6+ Kd4 Qa2 Qc6 Qb1 Qb5 Bc1 Kc3 Qe4 Qd3 Bd2+ Kc2 Nc6 Kd1 Na6 Qbd5 Na4 Qb5 Bf2 Qd4 N6c5 Qd5 Bde1 Kc1 Nb6 Ra2 Bc3 Rb2 Bd2+
5Rq1/R2r2R1/2n1p1rP/2qN1nNn/2Q3P1/q3QB2/1Q2r3/QRKbb1Bk b - - 0 1 illegal: No possible last move, all moves rejected
4Q1r1/b2R4/1qP1N2N/qR2Rn2/2PqbnRN/n1brNk1p/3B4/1Q1K1B2 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 b4 Kf7 c4 Kf6 g4 Ke5 f4+ Ke4 c6 d5 g5 e5 b6 h5 b7 a5 g6 a4 f6 d4 b5 h3 f5 d3 g7 a3 b6 d2+ Ke2 a2 f7 h4 f6 h2 Bh3 Ne7 g8R Na6 b8Q Nf5 b7 Nc5 Qe1 Ra3 Bf1 h3 Nf3 Ne6 Nd4 Qb6 Rg4+ Nf4+ Kd1+ Re3 Qe2 Bc5 f8N Rg8 f7 Bd7 Rhg1 h1Q Na3 Qg2 Rb1 a1B Nfe6 Bc3 f8N Qf2 Qe8 Qa5 b8R Ba7 Rd8 Bc8 Qe1 Bd7 Ndc2 Kf3 Ng6 e4 Nb5 Rd3 Nd6 Qfb6 Rb5 e3 Nf7 Bc8 Nh6 Bd7 Nb4 Bc8 Nd5 e2+ Kc2 Bd7 Ne3 Bc8 Rd7 d1Q+ Kb1 Qd2 Rg5 Qd1 R1g4 Qd2 Nd5 Qde3 Bd2 Qed4 Qc1 e1N Ne3 Nc2 Nh4+ Ke4 Qb2 Na3+ Kc1 Rg6 Nhg2 Kf3 Qb1 Rg8 Kd1 Nh4 Rge5 Nf5 Rd6 Bd7 Nf8 Be6 Rd7 Bd5 Ne6 Be4 Nh4+
q5NN/2n2r1Q/1Qp1k1qn/2P1rQQ1/BBbn2PK/1b6/q2B3R/3B1rR1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 f4 g3 fxg3 Bh6 g5 Kd2 g4 Ra2 g2 Ke1 g3 Be3 Be7 Bc1 Bh4 Nf3 g1N Ra4 g2 Ra1 Bg3 hxg3 Qf6 Rh3 Qg5 Rh1 Qd8 c4 Kf7 e4 h5 b4 a5 g4 d5 b6 d4 b5 d3 b7 h4 e6+ Ke7 b6 h3 e5 a4 Qc2 h2 Nbd2 a3 Be2 a2 Ng5 Nd7 b8B Ra3 f4 Rh6 Kf2 Bb7 Kg3 Ra7 f5 Ra8 f6+ Ke8 f7+ Ke7 Bd1 Qe8 Nde4 d2 Nf6 Nc5 Qh7 Bd5 b7 Rg6 Kh4 Na6 c5 Rg7 Ba3 Ne2 Bb4 g1R f8Q+ Kd8 Rb1 Nh6 Ng8 a1Q e7+ Kd7 Nf7 Nd4 Nh8 Qg6 e8B+ Ke6 Bea4 Qa2 Ra1 Bc4 Qf5+ Kd5 Rc1 Rf7 Qg5 Re1 e6+ Re5 e7 Ke6 Rg1 c6 Rc2 Nc7 Rb2 h1B Rc2 Bhd5 e8Q+ Re7 Qd8 Rf7 Qf8 Rf1 Qff4 Ra7 Qf3 Bb3 Rb2 Bdc4 Qe4 Ncb5 Bd6 Nc7 b8Q Rb7 Qf3 Ra7 Qb6 Rb7 Bc2 d1Q Qff5+ Kd5 Be7 Qda1 Bd1 Ra7 Rh2 Rb7 Bb5 Qa8 Ba4 Qa2 Qd3 Ke6 Bd6 Rd5 Bf4 Re5 Bfd2 Rb8 Qg7 Rbf8 Qh7 R8f7 Qdf5+
1RK1N2q/B2n4/pb1R1N1r/k2b1PNr/Q2q1rn1/3N4/4RnPR/1B2q2Q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 Kb6 b4 h5 f4 e6 d4 h3 d6 h4 d7 a6 f6 h2 d5 c4 f7 h3 d6 c3 f5 c2 Nc3 Rh5 Na2 Nf6 Bd3 Ne8 Nf3 Be7 f8N Qc7 d8Q Rh8 Qd7 Bb7 Ng5 Bc8 Nfh7 Qa7 Nf6 Rh4 Be3+ Rd4 Qg1 c1Q Bb1 Qc3 Nc1 Bb7 Nd3 Bd5 Ra2 Bd8 Re2 Qa1 Qd1 Qb2 Qh7 Qg7 d7 Qh8 Qa4 Qd2 Rhe1 h1N Qh5 Nf2 Rh1 Ra7 Rh2 Rc7 Qh4 Rc6 Qh5 Rd6 Qh7 Bc7 d8R Rc6+ Rd6 Qc3 Rh1 h2 Qh6 Qc5 Qh7 Rf4 Bd4 Ng7 Ne8 Bd8 Qh4 Bc7 Kf6 e5 Ke7 e4 Qh5 e3 Qh3 Kb7 b6 Nh5 b5 Nf6 Qh4 Nbd7 Qh5 Bb8 Kd8 N6g4 Qh7 Ba7 Qh3 Kb8 b7 Qc3 Qh7 Bc5 Qh5 Ka7 b8N Qb2 b6+ Kb7 Rg1 h1R Qh6 Rh5 Rh1 Qb4 Rh2 Qc4 Ra2 e2 Rc2 e1Q Re2 Ka8 b7+ Ka7 Be3 Qcd4 Qh7 Nde5 Nd7 Rb6 Nf6 Nd7 Re6 Rd6 Kc8 Bb6 Qh6 Bc7 Qh7 Rc6 Rd6 Kb6 Qb3+ Ka5 b8R Qc4 Ba7 Qd4 Qb7 Bb6+ Qc7 Rc3 Qc4 Rh6 Nb2 Rch3 Nd3 R3h4 Qc2 R4h5 Qd1 Qeb4 Qh1 Qe1 Qf7 Ba8 Qc4 Bd5 Qa4+
1n6/2qQq2p/bNNr1QP1/1nR1N2B/5BB1/qP4N1/n6r/1kBRK1bb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 Ke7 g4 Kd6 d4 f5 g6 c5 b3 a5 g5 a4 b6 f3 g7 f4 g6 c4 b7 c3 Ra2 a3 Nd2 c2 Bh3 Nh6 g8B Qc7 Ne2 Nf5 Ng3 Be7 Rb2 a2 Be6 a1Q Bg4 Ra2 Bh5 Rd8 Qe2 Bd7 Qf2 Bc6 Rb1 Qb2 Rf1 Qa3 Rg1 Ne3 Beg4 Nd1 Rf1 Bg5 Rh1 Nc3 e5+ Ke7 e6 Kf6 e7 Rd6 e8Q Nb5 Nc4 Rb2 Be3 c1N Qd7 Na2 Rc1 Bh6 Qf1 Rh2 Nb6 Kg5 Rc5 f2+ Ke2 Kf6 Bc1 f3+ Kd1 Be3 Rg1 Re6 d6 Be4 d5 Ke5 Rh1 Kd4 Rg1 Na7 Qa6 f1B Ke1 Bc4 Rf1 Kd3 Rh1 Kc2 Rf1 Nbc6 b8B Kb1 Rg1 Bb5 Rh1 Ba4 Qf1 Bg1 Qf2 Nb5 Qd4 Nca7 Qf6 f2+ Kf1 Qd8 Qe8 Qe7 d7 Nd4 d8N Ndc6 d6 Bb5+ Rc4 Ba6 d7 Nb5 Bbf4 Nb8 Nf7 Rd6 d8N Qc7 Rc5 Ba8 Qd4 Bg2+ Ke2 f1Q+ Kd2 Qc4 Nc6 Qe6 Qd7 Bf2 Rd1 Be3+ Ke1 Bg1+ Qe5 Qe7 Qee6 Bf3 Nfe5 Bh1 Qf6
k1B3QN/6Pr/Q1q3b1/1r4b1/QP6/R1nRrNp1/3q1n1N/QqB1NbK1 b - - 0 1 illegal: No possible last move, all moves rejected
1Bn2N1q/1q2BpP1/1R1N2P1/4QB1R/6b1/r1b1rN2/2nn2kq/1N1K1QBr b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 g4 Kd6 b4 c5 e4 a5 b6 h5 b5 h4 b7 h3 g6 f3 g5 h2 b6 c4 g7 c3 g6 a4 Bh6 a3 Be3 c2 Bh3 c1R Bf5 Na6 b8B+ Qc7 b7 f2+ Kd2 a2 Qf1 Nb4 Nf3 Rc3 Kd1 Nc2 e5+ Ke7 e6 Kf6 e7 Raa3 e8Q Bb4 d6 Ne7 d5 Qb6 Bc5 Re3 d7 Bc3 d8N Qb4 Nfd2 Kg5 d6 Kh4 Nf3+ Kg3 d7+ Qf4 Ne6 Rh5 d8N Bd7 Bd3 Nc8 Nf8 Bg4 Bba7 Qh6 Bb4 Qh8 Be7 Rh6 Bf5 Rh7 Qe2 f1N b8B+ Kh3 Bb6 Nd2 Nb7 Rh6 Qd3 Kg2 Nd6 Rh4 Qeb5 Rh7 Qe5 Rh6 Re1 h1Q Bc5 Qh2 Rh1 Qf4 Rh5 Qe4 Bh4 Qb7 Bf2 Rh7 Bg1 Rh6 Bb6 Rh7 Bd8 Rh6 Be7 Rh7 Rg5 Rh1 Rh5 Nc4 Nd2 Ne1 Qb5 Kg3 Rc1 a1Q Qdd5 Qb2 Rb1 Qa2 Rb4 Qb2 Nb1 Qh2 Qd4 Nc2 Qde5+ Kg2 Qa6 Nd2 Rb6 Na7 Qab5 Nc8 Qf1+
b2k4/R2nPQ2/b1qQ1Rn1/K2pQ1Bq/Q1r3R1/1N1r3P/Bb2N1n1/2r1R3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 f5 c4 d5 e4 a5 b4 g5 h6 f4 h3 a4 b6 f3 b7 f2 e6 g4 e5 a3 e7 d3 Kc3 g3 h7 g2 c5 a2 c6 d2 c7 Qd6 b5 Qc5+ Bc4 f1R b6 Nd7 b8Q Ra5 b7 Bg7 Ne2 g1Q Qa4 d1B Bg5 Qc6 Kb4 Qg4 Nd2 Qh5 Nb3 Rc5 Rg1 Rf3 Rg4 Rd3 Qba7 Bc2 Rf1 a1N b8Q Bf6 Qbb6 Bb7 Rff4 Ba8 c8R+ Kf7 e8R Ne7 Qbc7 Ng6 Qd6 Rf8 h8Q Bb1 Qb5 Nc2+ Ka5 Ne1 Rc7 Ng2 Re6 Rc8 Rf1 Ba2 Re1 Bg7 Rb7 Rc7 Qhb8 Rc8 Rf6+ Ke8 e6 Kd8 Qe5 Bb1 Qbd6 Rc7 Nbc1 Bc2 Ba2 Rc4 Nb3 Bd1 Qa4 Rc1 Na1 Bb3 Qf2 Bc4 Nb3 Ba6 Ra7 Rb7 Qfg3 Rb4 Qh2 Rbc4 Qe7+ Kc8 Qf7 Kd8 Qhf4 Bf8 Qg3 Ba3 Qh2 Bb2 Qd6 Kc8 Qhe5 Kd8 e7+
bq1Brnk1/1N1Pn2Q/qbrQ4/Q7/Nn1Np2K/1bRr4/3Q1PBR/2N5 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 g4 e5 b4 a5 b6 h5 f6 c5 g5 a4 g6+ Ke8 b7 a3 d6 a2 g7 Kf7 d5 e4 d7 c4 d6 h3 b5 h2 b6 c3 Qd2 c2 Nc3 h4 Bg2 h3 Kf1 Ra7 Nge2 Ra6 Na4 Ne7 Bb2 Qe8 d8N+ Kg8 Rc1 Nd7 b8Q a1Q b7 Rc6 Qa7 Qa3 b8N Bb7 Bc3 Ba8 Ba5 Qd3 Bb6 Qa6 Nb7 Qc8 Bd8 Qc7 Rb1 c1N Rb3 Na2 Rc3 Nb4 Qc5 Qcb6 Qb5 Qc7 Nc1 Qcb6 Ke2 Qc7 Ke3 Qcb6+ Kf4 Qc7 Rf1 h1R Kg4 h2 Qa5 Rh3 Kg5 Rd3 Kh4 Rg1 Re1 h1B Re3 Qc8 Rh3 Qc7 Rh2 Rd1 Bf1 Bf3 Bh3 Rg1 Bg2 Bd1 f7+ Kh7 Bh3 Bb3 Bf1 Rg6 Bh3 Re6 Bg2 Rc5 Nc6 Qb8 Nd4 Rc6 Qc7 Ng8 Qa5 Re8 Qag5 Be7 f8Q Bf6 Qe7 Nf8 d7 Be5 Qc5 Bc7 Qd6 Ne7 Qa5 Bb6 Ne6 Kg6 g8Q+ Kf6 Qh8+ Kf7 Qhh5+ Kg8 Nd4 Re3 Qhh6 Rd3 Qh7+
Nnk1rB2/1N1n1n2/4B1RQ/K1bR3N/P1P5/2N2pQq/2br1n2/1bR2nR1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 g5 a4 d5 c4 Kd7 h4 b5 e4 f5 c6+ Kc7 h6 g4 h5 g3 e6 g2 e5 b3 Kc3 f4 e7 d4+ Kb4 b2 h7 f3 h6 d3 e6 d2 Nh3 g1N Nc3 b1B Ba3 Qd5 Qe1 d1N Nf4 Qd7 Nh5 Ne2 Rg1 Ba2 Rc1 Bb1 Qg3+ Nf4 Bh3 Nf6 Bf5 Rg8 h8R Nf2 h7 Bb7 Bg4 Kc8 c7 Ng6 Bf5 Rg7 Rg8 B7e4 h8Q Bec2 Qh6 Nh8 Bh3 Rg5 Rg6 Nf7 Bg4 Rc5 e8N Rd5+ e7 Rd2 Bh3 Qe6 Bf5 Nfd7 Bg4 Na6+ Ka5 b4 Bh3 b3 Bd6 Qe2 Be6 b2 Bc5 Qf1 Bb4 Kb7 c8N Qh3 Nb6 Rd8 Bc5 Nab8 Nd6+ Kc7 e8R Be7 Rf8 Re8 Na8+ Kd8 Nb7+ Kc8 Ba3 Bc5 Rfg8 Bb6+ Kb5 Ba2 Bf8 Bc5 R6g7 b1N Qe3 Rd6 Ka5 Nd2 Rg5 Nf1 R8g6 Rd2 Rd5 Bab1 Qh6
3b2K1/Nb1NB1b1/1R1nk2q/2RN1BQP/r1RbrR2/1p3n2/N1P3b1/Q3n3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 Ke3 d5 Kd4 g5 Ke5 b5 h4 g4 a4 g3 f4 e6 h6 d4 h5 b3 a5 b4 c6 d3 h7 b2 a6 g2 a7 b3 c7 d2 f6 Ba6 c8N Bc5 f5 Bb7 Qg4 d1B Nh3 g1B Bd3 Bf8 Qg5 Na6 Ra5 Nh6 Nc3 b1N Na2 Nc5 Nf4 Nd2 Ba3 Qb6 Nd5 Bg7 Rh4 Bf3 Rc4 Re8 h8Q Bg2 Rb5 Qa6 Rb6 Bd4+ Kd6 e5 Be4 Rb8 a8R Nd3 Na7 Nf3 Kd7 Re6 Be7 Nde1 Rc5 Rf8 Rac8 Re8 Bd3 e4 Rc4 e3 R8c5 Rc8 Be4 Rcc6 Qa8 e2 Kd8 Kg8 Ke8 Rc7 Bd3 Re4 f7+ Kh8 f8N Kg8 f6 Nf5 Kd8 Kf7 Nd7 Rc6 Qc8 Rd6 Qa8 Ke6 f7 Rc6 f8R Nd6 Ra5 Rc5 Rf5 Rb5 Rf4 Rb4 Rac5 Ra4 Rbb4 Qc6 Rb6 Re3 Bg6 Re4 Bh7 Nd3 Bg6 e1B Bh7 Ba5 Bg6 Nc8 Ke8 Nde1 Bh7 Bgf6 Kf8 Nd6 Kg8 Bg7 Ra6 Bc7 Rb6 Bd8 Qc8 Ba8 Qa6 Bb7 Qa5 Qb5 Qc3 Qa5 Qa1 Qd2 Rg4 Qf4 Rh4 Qf6 Rf4 Qh6 Bf5#
6b1/1r1Q1nb1/NBRQ1PbR/1n2Qq2/b3bNR1/3pQRKP/5r2/2rk3B b - - 0 1 illegal: No proof kernel
R1NB1B1b/3B1k1P/1q1b4/3N2P1/1pnQ1b1K/1b1N4/1Nnb1R2/1rn2rQB b - - 0 1 illegal: No proof kernel
Q3R2N/1kr1b1PB/qb2RRb1/n3RQp1/N6r/3B2K1/BP1Bbn2/5bn1 b - - 0 1 illegal: No proof kernel
2B4b/R2R1rpK/r2NQR2/2R2n1P/b1r2nB1/B1Bk2P1/1n1q2r1/N1Qr4 b - - 0 1 illegal: Other
Q4b2/rqBKp3/k1Q5/n1b2R1P/n2Q2Bb/1Rb1Q3/N3nPNB/3r1B1b b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 a5 Kd3 d5 Kd4 Kd7 Ke5 Kc7 h4 Kb7 c4 g5 b4 d4 h5 d3 f6 d2 b6 g3 b5 a4 f7 a3 Rh3 a2 Nc3 g4 Nge2 g2 Nf4 g1B Ng2 g3 Bb2 Ra7 c6+ Ka8 c7 Kb7 c5 Nh6 Qe2 d1N Qe3 Qd7 Bc1 Nb2 c6+ Ka8 Rb1 a1B Na2 Bb7 c8B Nf5 c7 Nd4 Bd2 Ne2 Ba5 Qc6 Bg4 Bh2 c8Q Na4+ Rb2 Qf3 Ke6 Rg8 Qcc1 Nc6 Rb3 Bc3 Kd7 Rg5 Qd4 Re5 Qa3 Rd5+ Qd6 Qe4 Qe3 Rd1 Qdd4 Kb8 Rh4 Ba8+ b7 Qb1 Bd8 Na5 Rh3 Bg7 f8Q Qb2 Qf6 Bf8 Nf4 g2 Qc6 g1B Ng2 Bd6 Rf3 Bc5 Rf5 Bh2 Bb6 Be5 Bd8 Bf6 Bb6 Ra6 Bc7+ Ka7 Bh2 Bh4 Bc7 Nc4 Bh2 Ra5 b6+ Ka6 b8Q Bb7 Qcc7 Bf3 b7 Qb1 Qbc8 Qe4 b8B+ Qb7 Nf4 Bh1 Ng2 Rb5 Qd8 Na5 Qe8 Qe4 Qcd8 Rb7+ Bbc7 Ra7 Qa8 Qf3 Qf7 Qb7 Qfd5 Bg5 Qdf3 Bh4 Qc6+
br2R3/nN1P1R2/n3N1RQ/1Q2bqB1/2B2p1r/B6b/Kb3PRr/3b1kB1 b - - 0 1 illegal: No possible last move, all moves rejected
4B3/r2prqBb/1rB2kN1/8/3R4/1QP1b2P/B1rQKn1R/Nn1N1rNn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 e4 Ke7 b4 g5 e6 f5 h6 a5 b6 g4 h3 f4 c3 f3 e5 a4 b5 f2+ Kd2 d3 b7 a3 b6 g3 h7 a2 Ne2 g2 Rh2 g1R Na3 Nf6 Nc4 Ra6 Bg2 f1R Ne3 Bh6 Bc6 Re8 h8N Ng4 Qb3 Rg3 Ng1 Nf2 Rb1 Rg5 Nd1 a1R Qd5 R1a4 Rb4 Nh1 Rd4 Rb4 Ke3 d2 Ke2 Ra7 Qb3 Na6 b8Q Nc5 b7 Qc7 Ba3 Ne4 Ng6+ Kd8 Qa8 Rb6 b8N Bb7 Bf8 Re7 Na6+ Qc8 Nc5 Rg2+ Kd3 Bg5 Bg7 Be3 Qb8 Ba8 Qd5 Ke8 Nb3 Qd8 Na1 Bb7 Nf2 d1N Ke2 Nd2 Qb3 Nb1 Qd6 Rf7 Qdd5 Qf6 e7 Qf5 Rb4 Ba8 Qd2 Qe6 Rd4 Bb7 Bb5 Be4 Bc6 Qd5 Bh8 Rh7 Bg7 Kf7 e8B+ Ke6 Bf7+ Kf5 Bg8 Qf7 e6 Kg5 Bh6+ Kf6 e7 Rg7 e8B Bf5 Nf4 Bh7 Ng6 Qe6 Nh8 Re7 Ng6 Qf7 Bf8 Rg5 Bh6 Rga5 Bf8 Ra2 Bh6 Rc2 Bf8 Nb2 Nd1 Nd3 Bh6 Ndf2 Bf8 Qg7 Bgd5 Qf7 Bg7+ Kf5 Qb4 Kg5 Ba2 Kf5 Qb3 Kg5 Bh6+ Kf6 Bg7+
Qq3rrn/BQbK3N/1N4bR/3br3/p3Q2n/1B1RBP2/2b2Q1P/1k4nB b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 a5 b4 e5 c4 g4 c5 e4 h6 d6 b6 e3 c6 e2 b5 e1R c7 g3 b7 g2 h7 d3 b6 d2 Qg4 d1B Qe4 Bh5 Bc4 Nc6 b8B Nd4 b7 Nf3 Kc6 d5 Nd2 d4 Ba7 d3 b8Q Nh6 Nh3 g1N Qb7 Bg6 Ng5 Nf7 Bb3 Nh4 Nc4 d2 Nb6 d1B Be3 Be6 c8B Rg8 h8Q+ Bg7 Rb1 a4 Bd7 Qb8 Nh7+ Ke7 Rb2 Be5 Re2 Bc7 f6+ Kd8 Rd2 Bc2 Rd3 Rf8 Qg8 Nh8 f7 Bc4 Be6+ Ke7 Bh3+ Be6 Bg2 Re2 Rd5 Re1 Rh5 Re2 Rh6 Re1 Ng5 Kf6 f3 Bc4 Kd7 Bd5 Qh7 Rg8 Qd4+ Kf5 Qc5 Ke5 f8Q Bf7 Qd3 Bg6 Nh7 Re2 Bd2 Re1 Qf2 Re3 Qdf5+ Kd4 Bc1 Kc3 Qe4 Re1 Be3 Kb2 Qd8 Kb1 Qde8 Ne2 Rf1 Ng1 Bh1 Rc1 Rd1 Rf8 Rd3 Re1 Qb4 Rg8 Bd2 Re5 Be3 Rg5 Qee4 Re5 Qc6 Qb7 Qbb5 Raf8 Qa5 Qa8 Qb7 Qb8 Qaa6 Bd8 Qa8 Bc7 Q6b7
r2R4/1R2nnKN/6Qr/bP2RB1P/k1r5/2p1BBb1/b2RQbnB/5N1q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kf5 g5 h4 c4 d4 c3 e4 f6 Kg6 g4 b4 f5 d6 a4 d5 f3 e5 f4 h6 f2 h7 a3 h5 f3 b6 a2 b5 g3 b7 g2 Nd2 Qh4 Be2 f1N Nh3 g1B Ng5 f2 Bf3 Ne3 Qe2 Ng2 Nf1 Nc6 b8B Nd8 Be3 Nf7 e6+ Kd8 d7 Bb4 Kg7 Ne7 Be5 Ba5 Bh2 Bb7 Re1 a1B Rd1 Bb2 Rd2 Re8 h8R Ba3 Rg8 Bd6 Nh7 Kc7 d8R Bg3 Rb8 Rc8 Rd8 Bc6 Rb6 Bd7 Rb7+ Kd6 Ba7 Rc4 Be3 Nc8 e7 Qe4 e8B Ne7 Bg5 Kc5 d6 Kb4 Be3 Be6 Bd7 Ka4 Bc8 Bd5 Bf5 Qh4 d7 Be6 Rd5 Qe4 Re5 Qc6 Nd2 f1R Bg6 Rd1 Rh8 Qd6 d8Q B1f2 Qd7 Re4 Qc6 Ba2 Rd8 Rc4 Bf5 Qb4 Qf6 Qb1 Re1 Rc6 Qg5 Rh6 Qg6 Qa1 Rg1 Rb1 Rc1 Rb4 Rc2 Qh1 Nf1 Rc4 Rcd2
1nb2K2/qr1R2n1/1b1QpP1n/3B3B/1Pn1Qr2/1NkRr2B/7R/bR2BN2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 a5 Kd4 c5+ Ke5 h5 b4 h4 g4 c4 f4 a4 d4 h3 d6 h2 d7 c3 b6 e3 f5 e2 f6 e1B d5 c2 d6 a3 b7 a2 Nf3 Bh4 Qe1 Ra3 Qe4 Rh5 Bd2 c1R Bh3 Rc4 Be1 Re3 Nbd2 Rd4 Rb1 a1N Nf1 Qb6 d8R Nc2 d7 Rh7 N3d2 Rc4 Nb3 Na3 Kd5 Nh6 g6+ Kg8 g5 Bg3 g7 Qa7 Ke6 Be5 Na5 Ba1 Nb3 Na6 b8Q Rd4 Rd1 Nc4 Qd6 Nb8 Rc1 Rg3 Rb1 Re3 Rg1 h1N Rg2 Ng3 Rh2 Ngf5 Bh4 Rh8 Be1 Kh7 g8B+ Kg6 Bh7+ Kh5 g6 Kg5 Bg8 Rh7 g7 Kg6 Bf7+ Kg5 Qee5 Rf4 g8B Rg7 Bg2 Kg4 Bh3+ Kf3 Bh5+ Rgg4 Bg2+ Ke2 Bd5+ Kd3 Bgf7 Nd2 Qe4+ Kc3 Be8 Rg5 Bg4 Rg7 Beh5 Rf7 Bh3 Rh7 Bg3 Nc4 Bh4 Ng4 Bg3 Ng7+ Kf7 e6 Be1+ Nd2 Qb6 Bc5 Qd6 Bb6 Kf8 Bb7 Re8 Nh6 d8R Bc8 Re7 Qa6 Ra7 Qb7 Ra2 Qa6 Rd7 Qa7 Bg3 Nc4 Rad2 Ngf5 Be1 Re7 Rd8 Rb7 Rd7 Ng7 Rd3#
K4RQ1/N2b1R1P/1B2r1nR/3R1B1r/1Q1nQpbn/5P2/1Q1q2kb/2N2nr1 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 g5 e4+ Kg6 h4 Kh5 c4 f5 b6 a5 c6 a4 b7 d6 f3 f4 c5 a3 e6 g3 e7 g4 e8R g2 e5 g3 e6 a2 c7 Nd7 Kc6 d5 b8Q d4 e7 d3 Qb2 d2 Nc3 Nh6 Qe1 d1B Bd3 Ba4+ Nb5 Nf5 Ne2 g1R Qeb4 g2 Be3 Ne5+ Kb6 Bg7 c6 Ng6 Rd1 a1N Na7 Nb3 Rf8 Nd2 e8Q Nf1 Qee4 Bd7 Kb7 Bd4 c8R Bc2 Nb5 Ra6 c7 Re6 Na7 Bca4 Ra8 Bc8+ Kb8 Bad7 Rf7 Bc5 Nc1 Bb6 Bd2 Bf2 Bc3 Bg3 Bd4 Bh2 Bb1 Bc6 Bc5 Qd2 Bb6 B6d7 Bd3 Kh6 h5 Kg5 h6 Kh4 Bc2 Kh3 Bd3 Nfh4 h7 Rhe8 Bb1 Re5 Bd3 Rh5 Bc2 Re6 Bb1 Bb7 c8Q Ba6 Qg8 Bd3 Qc6 Bf5 Qce4 Bg4 Kb7 Kg3 Raf8 Nf5 Qc5 Qe3 Qcc4 Rh6 Rd3 Qd2 Rd4 Kf2 Qed5 Bg3 Rh2 Rh1 Rh5 g1N Qdc6 Bh2 Rh3 Kg2 Qcb4 Ne2 Ka8 Rg1 Qcc2 Rh4 Rd5 Ned4 Qd3 Rh6 Rh5 Nfh4 Qe3 Rc6 Bf5 Rf6 Qe4 Re6 Rg5 Ne5 Rg6 Rh5 Rh6 Neg6 Qe7 Qf2 Qea3 Qd2 Qab4
1b3Kn1/kR2P1Q1/3R1p2/1rR2Pqn/1rbNQnb1/2QBQ2R/B3N1r1/b7 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 e5 d4 Qd6 Be3 Qe6 d6 Qf6 d5 Qd8 Bd4 exd4 Kd2 Kd7 Kd3 c5 Kc4 h5 f4 a5 e4 h4 g4 f6 b4 a4 f5 d3 e5 a3 e6+ Ke8 b6 a2 b5 d2 e7 Kd7 b7 h3 b6 h2 g6 Rh6 g5 Na6 b8Q Rh8 g7 Ra7 g6 Nh6 g8Q Rc7 b7 Bg7 Nc3 Nb4 Nge2 Nd3 Qe1 d1B Nb5 Nf4 Rc1 a1B Qc3 Rc6 Qe3 Rb6 Nbd4 Rb5 Qa8 Qf8 b8R Ba6 Qh7 Ng8 Rb6 Bh6 g7 Qb8 Qg6 Kc8 d7+ Kc7 d8R Qc8 Ng1 Bg4 Bd3 Bg5 Rc2 Rh4 Rdd6 Nh5 Rc3 Bf4 Nge2 Bg3 Rhc1 h1R Qgg5 R1h2 Rb3 Nh6 g8B Rg2 Qg7 Qf8 Be6 Ng8 Rbc3 Be5 Rh1 Qf7 Rh3 Qg6 Bf7 Qg5 Rc1 Bb7 Qa3 Kb8 Qc3 Ka7 Rc2 Bc8 Rc1 Be6 Rc2 Ra5 Qe4 Ra3 Kb5 c4 Kc6 Rb3 Kc7 Qg6 Kd8 Rb5 Ke8 Qg5 Kf8 Bg3 Rd7+ Bc7 d6 Bd5 Rd8 Bb8 d7 Be6 Rc8 Bd5 d8Q Be6 Rcc6 Bd5 Qb2 c3 Rd6 Bc4 Rc1 c2 Qc3 Qe3 Qc8 Qh6 Qc5 Qg5 Rd1 c1N Be6 Na2 Rc1 Nb4 Qce5 Nd5 Qe3 Ndf4 Q5e4 Bd5 Rc2 Bc6 Ba2 Bd5 Qe1 Bf7 Rc5 Bc4 Qc3 Rb4 Rf3 Rh1 Rh3 Rhb1 Qc2 Rb5 Qc3 R1b4 Rb7+
krNn4/2qRpQ2/brbN1n2/rBQ3B1/4n2R/P1Q2KQP/6B1/B4nb1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 d5 c4 Kd7 f4 Kc6 f6 g5 a3 b5 f7 Kb7 c6+ Ka7 c7 g4 h6 b3 f5 b4 f6 d4 c5 g3 h7 d3+ Kf3 b2 c6 d2 Ne2 g2 Qc2 d1N Nbc3 b1B Ng3 g1R Bg5 b3 Nge4 b2 Nd5 Nc3 Bg2 Be6 c8B Bg7 f8Q Rc1 f7 Bd7 c7 Bd4 Nb6 Bg1 Ba6 Nc6 c8Q Nf6 Qg7 Qc7 f8Q Nd8 Qff7 Bc6 Bb5 Re8 Qd2 Bd3 h8B b1N Qf2 Rc2 Qc5 Rb2 Ra2 Rb3 Rd2 Bf1 Rd5 Rb2 Nd6 Nce4 Qh3 Rf8 Qg3 Nbd2+ Kf4 Rb8 Nc8+ Ka8 Rd4 Bc4 h3 Nf1 Kf3 Rb4 Rh2 Bd3 Rc4 Ra4 Rh1 Rb6 Rb4 Nd5 Qgc3 Ra5 Rh2 Nf2 Rh4 Ne4 Qc1 Rg8 Ba1 Ndf6 Q1c3 Raa6 Ne8 Kb8 Bh1 Bc2 Rd2 Ne6 Bd3 Ka8 Bg2 Ra5 Na7 Rf8 Ba6 Bd3 Rd1 Bc4 Rd7 B4b5 Nd6 Rfb8 Nac8 Nd8 Q3d4 Bc4 Qc3 Bd3 Bb5 Bc4 Ba4 Ba6 Bb5
N2NQ2K/r3pbn1/1nQ2bR1/1nQQN2b/1P2nBB1/7r/1PR4q/2r2k1N b - - 0 1 legal: proof: h4 d5 e4 b5 c4 g5 cxd5 gxh4 a3 f5 exf5 b4 axb4 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 Kh5 Kf4 d4+ Ke4 f4 a5 g4 c5 f6 c4 d6 a4 g5 h6 Kg6 h3 d5 h2 d7 a3 f7 h5 d6 a2 f5 c3 f6 h4 Be2 c2 Na3 h3 Nc4 Ra5 Ne5 Rh5 Bg4 Nh6 Kh7 Qc7 d8N Ra7 g6 Nd7 g7 Nb6 g8Q Be6 d7 Bg7 f8N Bf7 Bf4 c1R Ne2 Bh8 Qg7 Nf5+ Qh6 Ng7 Rg1 h1N Nfe6 h2 Qd6 Ng3 Qc5 h1B Rb1 Qb8 Nc7 a1N Na8 Rh3 Rg2 Bh5 f7 Nb3 f8Q Nd4 Qe8 Nb5 Ra1 Bf7 Ra6 Qc7 Rf2 Bf3 Rg2 Nc4 Rg6 Nb6 Nd4 Bd1 Rc2 Qd6 Nf5 Qd2 Ne6 Qh2 d8Q Be2 Qdd6 Bd1 Nd8 Be2 Nc4 Bd1 Qdc6+ Kd3 Qh5 Ne4 Ng3 Be2 Nh1 Bf3 Bd2 Ke2 Ne5 Kf1 Bg5 Nf5 Bd2 Bf6 Bf4 Ng7 Kh8 Bg5 Bc8 Bh4 Qf5 Bh5 Qfe6 Bg5 Qed5 Bf6 Bg4
b5q1/B1PNN2Q/r2RpP1k/1rb1N3/Q2n2Bn/4rR2/n2r4/2NbRKR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 b4 Kf7 h4 a5 c4 g5 f4 Kg7 c5 d5 h6+ Kh7 h5 g4 c6 d3 f6 e6 f7 g3 c7 d4 b6 a4 b5 a3 f5 a2 b7 g2 b6 Ra6 Nd2 Nf6 Nb3 Ra3 Nf3 g1N Be2 d2+ Kf1 d3 Ne5 Nc6 b8R Na5 b7 Qe8 Bg4 Bc5 f8R Nf3 Rg1 Ne4 f6 Qf7 Rd8 Nh4 Rd6 Nc6 Bb2 Qg7 Bd4 Nc3 Nc1 Qg8 Qa4 d1B Ra8 d2 b8N Rb3 Nbd7 Rb5 Rb1 a1R Bf2 Ba3 Ba7 Bc5 Rb3 Na2 Rf3 Nd4 Rb8 Rb2 Rbb3 Bb7 Rbe3 Rb5 Re4 Qc8 Re1 Ba8 Ned3 Kg8 h7+ Kf7 h6 Kg6 N3e5+ Kg5 Qa3 Rg8 h8Q Qf8 h7 Kh6 Bh5 Rg3 Qa4 Qg8 Bg4 Rh3 Rf5 Re3 Rf3 Qf8 Qg8 Qc8 Qf7 Qg8 h8N Nc3 Qb4 Ra6 Qa4 Na2 Qe7 Bc2 Qf7 d1R Nhg6 Rd2 Ne7 Bd1 Qh7+
rkb1R1R1/2P1Qp2/3Kb2q/N2B1r1P/B2R2R1/4b1N1/1nn1nn2/1Q2rBB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kg3 g5 h4 d5 e4 Kd7 b4 Kc7 c4 a4 b6+ Kb7 e6 d3 c5 d2 h6 g4 Kf4 a3 Ke5 d4 h7 a2 h5 g3 e7 g2 e8B d3 b5 Ra7 Na3 Ra4 Rh4 Bh6 Ne2 g1R Qe1 d1B Nc4 d2 Na5+ Ka8 b7+ Ka7 b6+ Ka6 Ng3+ Qd3 Bc6 Bf3 Rg4 d1N Bd5 Nb2 Be3 Nf6 Rd1 a1N Kd6 Nc2 e5 Rf4 e6 Nc6 b8R N6d4 b7 Ka7 e7 Rf5 e8B Ne2 Ba4 Qd2 Bd4 Be6 Rbg8 Be3 b8R Qc1 Rbe8 Bc8 c6+ Kb8 Rd3 Bg2 Bc5 Bh3 Rdd4 Qd2 Qb1 Ne4+ Ke7 Nf2 Kd6 Qc1 R8g6 Rg8 h8Q Rh1 Qf6 Rh8 Rgg8 Rg1 Bfg2 Re1 Qe7 Rf4 Rh4 Be6 Bf1 Rf5 Rdg4 Bd4 Bb6 Qh6 Bc5 Be3 Rd4 Nd1 Rhg4 Nf2 R8g5 Nh1 Rdf4 Ka8 Bh3 Bc1 Bg1 Be3 Bf1 Nf2 Rd8 Rf8 Rd4 Rg8 Rd7 Ba6 Rb7 Rf8 Rg8 Re8 Rd7 Rb8 Rdd8 Bac8 Qh4 Ka7 Rde8 Ra8 Qe7+ Kb8 c7+
1r1bnR2/8/q1B1Rb2/Bq1NN2p/2Qb1R2/2P1Q1b1/4P2k/r1QKnRQb b - - 0 1 illegal: No possible last move
1N1Nr3/Q4B2/pQQR1B1P/3bqr2/B1nrR3/5Prr/3k2Bq/K1b1Qn2 b - - 0 1 illegal: No possible last move
2B1kqq1/3pr1BB/4q3/4NQKn/1qbP2B1/rR1N4/P3q1b1/1n1RQ1QQ b - - 0 1 legal: proof: h4 a5 e4 f5 exf5 g5 hxg5 Bg7 b4 axb4 c3 Bf8 Be2 b5 Rh2 b3 Bd3 b2 Qg4 b4 Rh1 b3 Qd1 Bg7 Bf1 Bd4 Qf3 Bc5 Qd1 Bb4 cxb4 Kf8 Ne2 Kf7 Ng1 Ke8 Ke2 e5 Kf3 c5 Kg4 c4 d4 h6 f4 c3 b5 e4 g6 c2 g7 e3 b6 e2 b7 e1Q f6 h5+ Kg5 h4 g4 h3 f5 h2 Na3 b1B Ne2 b2 Nc4 Nh6 g8B Ra7 Be6 Qg3 Nf4 Qc7 Nd3 Qce5 Qe1 Qe2 Nce5 Na6 b8Q Nc7 Qa8 Rh7 Rg1 Nb5 Qh1 Qgf3 Rg3 Bb7 Be3 c1Q f7+ Ke7 Bd2 Qc8 f6+ Kd8 Bb4 Ng8 Bf8 Ra3 Bg7 Nc3 Qg1 Bc2 Rd1 b1Q Bf5 h1Q f8Q+ Kc7 f7 Qh3 Qb4 Bb3 f8Q Bc4 Qf7 Be4 Qb7+ Kd8 Be6 Qff2 Qf5 Ke8 Qa8 Bh1 Bg2 Qbb8 Bb7 Nf6 Ba6 Qc5 Bc8 Qcb4 Qag2 Qff3 Q2h2 Bg2 Qhh1 Qfa8 Qe4 Qc6 Bf8 Q8d6 Nc5 Qbb2 Kg6 Bb3 g5 Qe7 Bg4 Nh5+ Kf5 Bd5 g6 Qb4 g7 Nb1 g8B Rg7 Rc3 Qhd3 Bh7 Qdc4 Ncd3 Qec5 Be7 Q6a6 Bd8 Qf8+ Bf6 Re7 Kg5 Qcb3 Qf5 Qab6 Bh8 Qg6+ Kh4 Qgg8 Bg7 Q3c4 Kg5 Qc6 Nf3 Qce6 Rb3 Bc4 Nfe5
bB4nR/1n4Q1/B1r1n1K1/R1Nb1N1r/1kR1qN2/r4rPp/2q1NR1P/2Q5 b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 f4 gxf4 d6 Bd7 e3 Bg7 d5 Bd4 exd4 Bc8 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 b4 c5 g3 h4 b6 a4 b7 f3 b5 f2 b6 a3 Nc3 h3 Nce2 f4 Kf5 e5 Bb2 c4 Kg6 e4 Qe1 c3 Qc1 c2 Nf3 e3 Nh4 a2 Nf5 Nc6 b8Q f3 b7 Rh5 Qa7 Na5 b8R+ Qc7 Rb3 Bb7 Rc3 Rc8 Rg1 Ba8 Rg2 Nb7 Ba3 Qc4 Bc5 Qd3 Bb6 Rc5 Bc7 Qe4 Bb8 Rc8 Rb1 a1R Rb5 Ra3 Ra5 Ke8 d7+ Kd8 Qa1 c1Q Qc5 Qb2 Qc1 Qbc2 Qf8+ Qe8+ Qf7 Qee4 Qg7 Rc4 Nf4 Rc7 Ba6 f1B Rf2 Bg2 Ne2 Rc5 Ba7 Kc7 d6+ Kc6 d8N+ Kd5 d7 Bh1 Bb8 Bg2 Ng1 e2 Ne6 e1N Ne2 Nd3 d8R+ Kc6 d5+ Kb6 d6 Rc6 d7 Ndc5 Rf1 f2 Re8 Bf3 d8N Bh1 Bd6 Bg2 N6f4 Ne6 Bb8 Bh1 Rd1 f1R Rd2 Rf3 Rf8 Nd6 Nb7 Bg2 Nc5 Nb7 Rc8 Nf6 Rh8 Ng8 Rd1 Bh1 Rf1 Bg2 Ra4 Bh1 Rf2 Bg2 Rd4 Ka5 Rd5 Kb4 Na4 Qcd3 Ra5 Qc2 Nc5 Bf1 Ng1 Bc4 Nge2 Bd5 Rc4+
N4Q2/R3QB1B/1Bb5/nn3N1N/2nR2K1/3rqp2/1kP1rPbb/B1b1q1N1 b - - 0 1 illegal: No possible last move
2Bqn1R1/6B1/r3B2b/1BKN2r1/3p2qR/rQ1rb2N/bP2PR2/Qnk2R2 b - - 0 1 illegal: No possible last move, all moves rejected
2B2KbB/2B4N/2N3Q1/rbnrqN1n/PN1R3q/2b1p3/kP3B2/q2R1b1Q b - - 0 1 illegal: No proof kernel
7K/BkBB1q1R/1B2bQ1N/5PN1/5bQr/q1qP2n1/1rp1bnb1/4RNN1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 Kc7 b4 h5 g4 h3 f4 c4 b6+ Kb7 g5 a4 b5 c3 g6 h2 f6 h4 d3 a3 f7 h3 g7 c2 f5 a2 d6 Nd7+ Ke6 Ne5+ d7 Qc7 Be3 Ng4 Nd2 N8f6 g8N Nh5 Nh6 Nf2 Qg4 Rb8 Re1 a1Q Bd4 Bg7 f8N Ng3 Kf7 e5 Ne6 e4 Ng5 Be5 Bg2 Bf4 Kg7 Qa3 Nf1 Qc4 d8B Be6 Bc7 Qd5 Bc5 e3 Bd4 e2 Bc5 Kc8 Be3 Qc4 Bc6 Qd5 Bd7+ Kb7 Nhf7 Rh4 Nh6 Bg8 Kh8 Qf7 Rc1 e1Q Ra1 Qeb4 Re1 Re8 Bc5 Re4 Bd4 Qc5 Be3 Rb4 Bd4 Rb2 Be3 Ka8 b7+ Ka7 b8B+ Kb7 b6 Qcc3+ Bd4 Qg6 Re7 Be6 Rh7 Qh5 Ba7 Qf7 N1f3 Qd2 Rg1 h1B Be3 h2 Bd4 Ka6 b7 Bg2 b8Q h1B Qf8 Kb7 Bdb6 Qe1 Qd8 Qe5+ Qf6 Qec3 Nd4 Bf3 Ne2 Bhg2 Rh1 Qa2 Ng1 Be2 Rh2 Qaa3 Rh3 Ngh1 Re3 Ng3 Re5 Bd1 Re1 Bdf3 Rb1 Be2 Re1
N1n1B3/1KnkR1qR/1RN1qR2/1rBP1b2/3bB3/1pPb4/1r3Q1n/1b2Q1B1 b - - 0 1 illegal: No possible last move
BQ1r4/Br4b1/1r6/1b1p1b1N/r2RQ2P/2PR1Knq/n4NNk/N4QQq b - - 0 1 illegal: No possible last move
Rr1Qr2N/2q1BB2/BBbR4/KbP2k2/2qpNn1Q/3n1N2/1b3P2/bn3N2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 g4 d5 b4 a5 c4 h5 c5 e5 g6+ Kf6 b6 h4 b5 d3 Kc3 a4 Kb4 d2 g7 a3 b7 h3 b6 a2 g5+ Kf7 f6 Kg6 f7 e4 Qh5+ Kf5 Ba6 d1N Ka5 e3 Qh4 h2 g6 e2 Nf3 e1Q+ Nbd2 Ne7 g8B Qf1 g7 Nd7 b8B Nc3 Bc7 Qc4 b7 Rb8 Nf1 Nb1 Bb6 Ng6 Bg5 Qc7 Be7 Nf4 Rg1 h1B Rg6 Ne5 Rd6 Ra8 b8Q Bd7 Qd8 Bb5 Bf6 Be7 f8N Ned3 Bf7 Rb8 Ng6 Re8 g8N Bf8 Bg5 Bg7 Be7 Bb2 Nf6 d4 Nh8 Bg2 Ne1 Bb7 Ne4 B7c6 Nf3 Nd2 Rc1 a1B Rc3 Nb1 Ra3 Ne5 Ra4 Ned3 Bb7 Ne5 Ra3 Qe6 Kb4 Qd5 Ra8 Ned3+ Ka5 Qc4 Ba6
1Qq4q/2N3rQ/2B1n3/PNQ2K2/3b3Q/1rBN2PR/k1N1pn1b/rb3rR1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 h5 a4 e5 f6 b5 d6 b3 d4+ Kb4 f7 c5 g6 h4 f5 b2 d7 h3 f6 h2 d5 c4 d6 c3 g7 c2 Be2 Kb3 Bd2 b4 Qc1 Na6 Bb5 Nh6 g8Q Bg7 Ne2 Rh7 Nf4 Nc7 f8N+ Ne6 f7 Ng4 Na3 b1R Bc3 Nf2+ Kf5 e4 Bc6 e3 Nb5 e2 Nd3 Bd4 a5 Rg7 Qh8 Rb8 Qh7 Rb7 Qf4 c1B Qfh4 Bf4 Rg1 Qc7 d8N h1Q d7 Bh2 g3 Rf1 Re1 Ka2 Rb1 Ng5 Nfe6 b3 f8Q b2 Qc5 Qb8 Nec7 Ne6 Re1 b1R Rc1 Ra1 Re1 Ng5 Nde6 Qa8 d8Q Qa6 Na7 Rb3 Nab5 Bd7 Qb8 Qc8 Na3 Be8 Ncb5 Bh5 Nc2 Bf3 Bd7 Bd5 Nec7 Ne6 Be8 Bc4 Rc1 Qa8 Bc6 Qh8 Qb7 Qac8 Qb8 Be3 Ne5 Rd1 Re1 Bd4 Rh1 Bg1 Rh3 Bh2 Ne1 Bd3+ Kf6 Bb1 Nc2 Rd2 Rg1 Rd1 Kf5 Rf1 Nd3
kRR1R1N1/r1q5/1B1b2Bb/P3nQr1/1PbB2pB/1n5q/5qq1/QK1NR3 b - - 0 1 illegal: No possible last move, all moves rejected
1kRB4/bB1rb1b1/QQ4r1/P2Q1pr1/3BB3/R1Nq3n/N4P2/Kn1Qbq2 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 h5 bxa5 b6 d4 Be6 g4 hxg4 e4 Rh5 e5 Kd7 d6 Kc6 d5+ Kc5 Bd3 Kd4 Be2+ Ke4 Bf1 Bd7 e6 Kf5 exd7 Rh8 Bg5 Kg6 Bc1 Kf6 Kd2 Ke5 Kc2 f5 Kb2 c5 a4 g5 h4 c4 h5 c3+ Ka2 c2 h6 g3 h7 g2 a6 g4 a7 g3 a5 b5 Qg4 b4 Rh2 b3+ Kb2 Nf6 Rh3 Nh5 Rh2 Bg7 Qf3 Na6 Ra3 Nc7 Bd3 Rg8 h8Q Nf4 Bf1 Nh3 Ka1 b2+ Ka2 Nb5 Rd3 Na3 Bh6 c1B Qd1 Be3 Ne2 g1B Nbc3 g2 Nc1 Nb1 Be2 Rc8 a8B Ba7 Bf3 Rc7 Be3 e6 Rh1 Bh2 Be4 g1R Qh6 Rg6 Bb7 Bg3 Re1 Bh4 Re2 Be7 Rc2 Qc8 d8Q Rd7 Qb6 Qc4+ Qb3 Qa6 Qb6 Rg5 Bc5 Qb5 Rf3 Qd3 Re3 Bgf8 Rg3 R8g6 Be3 Bg7 Qa6 Kf6 Bd4+ e5 Rf3 Kf7 Re3 Ke8 Rg3 Rc7 d7+ Kd8 Re3 Rc5 Rf3 Kc7 d8B+ Kb8 d6 Rd5 d7 Qf1 N3e2 Rdd6 Ra3 Rd5 Nc3 Qd3 Bf3 e4 Qb6 e3 Be4 e2 Qa6 Rc6 Qe6 Rdd6 Qd5 e1B B8b6 Rc8 d8Q Rdg6 Q8d6+ Rc7 Q6e6 Rd7 Bd8 Nd2 Qeb6 Nb1 Na4 Qf1 Kb3 Nc3 Na2 Nb1 Rc1 Nd2+ Kc2 b1Q+ Kc3 Qbd3+ Kb2 Qf3 Ka1 Nb1 Rc4 Qg3 N4c3 Qgd3 Rc8#
RN1R3B/n1R1br2/5BP1/1knnPBqr/B2K4/3Rnp2/1QQq2bN/2b5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 f5 d4 h5 b4 c5 e4 a5 d6 c4 d5 h4 g6 f3 Ke3 h3 b6 h2 b5 f2 g5 c3 b7 a4 b6 f4+ Kd4 f3 g7 a3 g6 c2 Bd3 f1Q Ne2 a2 Bg5 c1N Bf6 Rh4 Nd2 Na6 b8Q Qe1 b7 Nb4 Nf1 Be7 Qc2 Rh5 e5 Ra7 Bf5+ Ke8 Rb1 Ncd3 Rb3 Nc5 Rd3 Qd2 Rg1 h1N Nh2 Nf2 Rc1 Nh6 g8B Nfe4 Bge6 Nc3 Bh8 a1B Bg8 Bb2 d7+ Kf8 d6 Nbd5 Bf7 Ng4 B7e6 Qg5 Bf7 Qa5 d8B Nge3 B7e6 Ke8 Bg8 Bf8 Bdf6 Be7 d7+ Kd8 Qd6 Ba3 b8R Rb7 Qa6 Kc7 d8R Qb4+ Qc4 Kb6 Ra8 Qa5 Q4a2 Kb5 Re1 Bc1 Qab2+ Nb4 Bb3 Nbd5 Red1 Ra7 Rd7 Qd8 Rc7 Qd6 Be4 Bh3 Bf5 Bf1 Nf4 Bg2 Ne6 Qa6 Nf8 Qa2 Nd7 Qa5 Qbb1 Rb7 Nb8 Qa2 Qf2 Qd2 Qb2 Qe1 Nf1 Bd8 Qfc2 Kb6 Rg7 Ne7 Nh2 Nc8 R3d2 Na7 Rh7 Kb5 Rg7 Rf7 Rh7 Rf8 Rc7 Ne6+ Kd3 Be7 Na6 Rf7 Nb8 Ncd5 Ke4 Ndf4 Rd8 Nc5+ Kd4 Nfd5 Rd3 Qd2 Ba4+
BBR3kB/2Br4/2QrP2b/1qRq2NR/2R2p2/2Pq4/2qbQn2/2n1N1Kb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 e4 d5 h4 f5 b4 Kf7 b6 g5 h6 a4 b7 d3 h7 d4 h5 g4 h6 d2 c3 f4 b5 d3 b6 a3 Nh3 a2 Qe2 d1Q Ba3 g3+ Kg1 g2 Nd2 Qd5 Be7 Ra6 Bd8 Nf6 Nf3 d2 Ne1 Nbd7 b8R Nc5 b7 Ng4 Rh2 Bf5 Rc8 Nf2 b8B Nb3 Rc4 Rd6 Rh1 Rg8 h8B Nc1 h7 Bh6 e6+ Kf8 e5 Be4 Rb1 a1Q Rb5 Qb2 Ng5 Qdc2 Rbc5 d1Q Rh5 Rg7 e7+ Ke8 Ngf3 Kf7 e8R Q1d3 e6+ Kg6 Ng5 Rgd7 Bd4 Qb6 h8Q Qb5 Qf8 Bf3 Bh8 Be4 Bdc7 Bf3 Rc8 Be4 Bd8 Bf3 Ne4 Kh7 Qf5+ Kg8 Ng5 Q5d4 Qh3 Bb7 Qhf3 Qd5 Kh2 g1B+ Kg2 Ne4 Kh1 Bc6 Bg2 Be3 Kh2 Nf2 Kg1 Bd2 Bh1 Qe5 Qd5 Bb7 Qc6 Qed5 Qc7 Q5f5 Bc6 Ba6 Ba8 Bb7 Qb6 Bh1 Qc6 Qfd5 Bdc7+
8/bknR2Qr/2P2rq1/Kp1Q1bq1/3B4/N1B1Pn1n/1BnQB3/1Q2R1rN b - - 0 1 illegal: No possible last move
2RNn2q/2qBnrr1/1pNR1QQ1/1bknb1K1/3P1N2/q7/3N2nP/1Q1Q2B1 b - - 0 1 illegal: No possible last move, all moves rejected
4r1rr/n2N2Bb/P2Q3b/1bN1N2q/R4b1k/B1p3N1/2Bn1qP1/1RK2QB1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 d4 Kf7 Kd2 e5 a4 h5 f4 c5 a5 b5 g6+ Kf6 g7 c4 d6 h4 d5 h3 a6 e4 d7 h2 d6 b3 Ne2 b2 Nbc3 b1R Na4 b4 Nc5 b3 Ra4 Nc6 Ba3 b2 Kc2 Qe7 d8Q e3 d7 c3 Ng3 Na7 Bd3 e2 Qb6+ Qd6 d8N e1B Nc6 Bd7 Nge4+ Kf7 f6 Kg6 f7 Nf6 g8N Bh6 Ng3+ Ne4 f5+ Kg5 Nf6 Bd2 f8B Qd4 Bg7 Rag8 Qc7 Bc1 Qd6 Bf4 Re1 h1Q Qc1 Be6 Nfd7 Nd2 f6 Bc4 f7 Qf2 Kd1 Kg4 Bc2 Qh5 Rh1 Bb5 Bd4 Qe3 f8B Ra1 Bfg7 b1B Bb3 Bh7 Bc2 Rb1 Re1 Qg1 Bf2 Qf1 Bg1 Rb4 Qa1 Re4 Qb1 Ree8 Qa1 Qg6 Nce5+ Kh4 Qb1 Bc6 Qb5 Qf2 Qf1 Qf5 Ree4 Qg5 Reb4 Bb5 Kc1 Qh5 Rb1
3B1K2/2Q4B/P1BNr1qk/B1Q1RQ2/4pb2/8/R2rNPrQ/1q1bqnrn b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 Kg7 Ke4 b5 Ke5 h5 a4 c5 d4 h4 g4 h3 a5 h2 d6 b3 a6 c4 g6 b4 d5 b2 d7 b3 Ke6 c3 g5 c2 d6 Qa5 Bg2 Rh6 Bd2 c1R Qg4 Rc2 Ne2 Nf6 Ra2 Nc6 Re1 h1R Nbc3 b1Q Nb5 Nb4 Bc6 b2 Qh5 Bb7 d8Q Nbd5 d7 Ne3 Nd6 Rg1 Qh2 Nf1 Qc7 Ne4 d8B Neg3 Bb4 Qb6 Ba5 Rd2 Kd7 e5 Ke8+ Kh8 g7+ Kh7 f6 Nh1 g8B+ Kg6 Ba4 Bf3 f7 Qc1 Bc6 b1Q Bh7+ Kg7 g6 e4 Rd1 Qc3 Rc1 Be7 Rcc2 Bg5 Rc1 Qce3 Rc5 Bf4 Rb5 Qc3 Re5 Qcc1 Ke7 Qe1 Ke8 Rh3 Ke7 Kh6 g7 Bh5 f8Q Rhg3 Qf7 R3g2 g8Q Ra7 Kf8 Rb7 Qc8 Re7 Qcf5 Re6 Qa7 Qe3 Qd4 Qg3 Qc5 Qg4 Qgf7 Qg6 Qg3 Bf3 Qc7 Bg4 Nc1 Bd1 Ne2 Qg4 Qh3+ Qh5 Qg3 Qg6 Qh2+
3R2qr/2Rb1k1P/2Q3p1/n4Q2/B1nn4/BQq5/1N2RP1K/bb1NrRQn b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 e5 c4 a5 b4 d5 c5 d3 h6 d4 b6 g6 f6 a4 b7 e4 h5 e3 b5 a3 f7+ Ke7 c6 e2 b6 a2 c7 Qd6 Na3 Bg7 Nc4 Nc6 b8R Qd8 b7 Bd7 c8R Rh7 Rc7 Nf6 f8Q+ Ke6 Qc2 Ne4 Qf5+ Ke7 Qd1 Qg8 Rd8 Ra3 b8Q Ng3 Qbb3 Na5 Rb1 a1N Rb2 Bf6 Bg2 Kf7 Bc6 Ra2 Ba4 Nc2+ Kd2 Ra1 Ra2 e1N Ne2 Na3 Nc3 Nec2 Qdf3 Rb1 Qc6 Ra1 Kd1 d2 Rg1 Nh1 Ke2 d1B+ Kf1 d3 Kg2 d2 Kh2 Bf3 Rb2 d1Q Ra2 Nb5 Ba3 Qd3 Rb2 Rf1 Nd1 Ne3 Re2 Re1 Rf1 Qd2 Qh3 Ba1 Ncb2+ Nec4 Qg3 Qc3 Qg1 Rg7 h7 Nd4 h8Q Be4 h6 Rh7 Qe5 Rh8 h7 Bb1 Qf5+
Bq1q4/2QRn1Qp/P1Nr2B1/4P1q1/1rr2N2/K4BRb/3kRB2/1R1rb2n b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 g4 Ke7 d4 b5 Kd2 f5 Kc2 c5 Kb2 f4 a4 b3 e4 c4 g6 c3+ Ka3 c2 e6 Kd6 a5 b2 a6 f3 g5 f2 e5+ Kc7+ e7 Kb6 g7 Ka5 g6 Nd7 d6 Nb6 e8B Bd7 d5 Bc8 Nc3 b1R Nh3 Na4 Qg4 Be7 Ne2 Nc3 Rh2 Bh4 d7 Rb4 d6 Ne7 g8R Ne4 g7 Ng3 Nhf4 Nh1 Bg2 f1R Rb1 Rd1 Bg6 Be1 Nd4 Ra7 Bd2 Rc7 Ba8 Rc4 Be3 c1Q+ Rhb2 Qd2 Bf3 Qg2 Bf2 Qg3 Rc2 Qh4 Re2 Qg5 Re8 Rf8 g8B Rf6 Bgd5 Qf5 Bgf7 Qb6 d8Q Ra4+ Kb3 b4 d7 Rd6 Rc1 Qf6 Kb2 b3 Ba8 Kb4 Rg8 Qa5 Qg5 Qg6 Qh6 Qh5 Rg3 Qg5 Qg7 Qc7 Kb1 b2 Nc6+ Kb3 Bg6 Qb6 Qc7 Qa5 d8R Bh3 Qc8 Qc7 Bc2+ Kc3 Rd7 Qd8 Qb7 Rab4 Ka2 b1Q+ Ka3 Rb6 Qc7 Rb7 Re3+ Kd2 Bg6 Qb6 Rb1 Qb8 Qc8 Qd8 Qc7 Rbb4 Re2+
b2B1Bb1/kq3NPb/3b1QP1/KQ1qr1pR/2Br4/1Q4RB/2nNQq2/3n4 b - - 0 1 illegal: No proof kernel
bQ1k3K/Nq2RPR1/2Pn3B/1bR2Q2/2r5/bpRQr2r/1q2N3/1nQ2Br1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 d5 Kf3 b5 Kf4 g5+ Ke5 e6 h4 g4 a4 b3 c4 g3 f4 g2 c6 d4 h6 b2 h7 d3 c7 b4 h5 b3 f6 d2 f5 Qd7 a5 Nh6 a6 Qe7 c5 Kd7 f7 Qe8 Kf6 e5 a7 e4 Ne2 g1Q Rh3 e3 Nbc3 b1B Nb5 Nc6 Ra5 Qg3 Nd6 Ba6 Nc8 Rb8 a8Q Rb4 Qb8 Rc4 Rb5 Bd6 f8Q Qf3 Kg7 Be4 f6 Nf7 h6 Nb4 Qc2 d1R Qd3 Qf2 Ra5 Ba8 c6+ Ke6 Rc5 Bb5 Rg3 Na2 Rg4 Ng5 f7 Qd7 Qd8 Ne4 Qg5 Nac3 Bd2 Rd8 h8R Nb1 h7 Be7 Re8 Nd6 h8R Qf6+ Kh7 Qb2 Rhg8 Rdc1 Rg3 Re1 Nc1 e2 Rg7 Rd1 Be3 e1R Kh8 Re2 Bf4 Re3 Ne2 Re1 Qg4+ Kf6 Bh6 Bf8 Re7 Rd1 Bh3 Rg1 Bf1 Re8 Qh3 Rf3 Qh1 Re3 Nb6 Rf3 c8Q Qb7 Re3 Re5 Qcf5+ Ke7 Nc8+ Kd8 Rh3 Re8 Re7 Re3 Qhe4 Rf3 Qef4 Rfg3 Qc1 Rf3 Rc7 Ree3 Re7 Rfg3 Rh4 Rh3 Rf4 Ra4 Rfc4 Rb4 Rc2 Rc4 Rc3 Qd7 Rd5 Nb7 Re6 Ba3 Re7 Nd6 Rc5 Qb7 Na7+
1b1rB3/1kqNqp2/nPBR3B/1Q2RR2/BP6/K1nr2b1/Q1qN4/1b2q2R b - - 0 1 illegal: No possible last move, all moves rejected
1nNR2bK/q3PBr1/R1b2r2/R1r5/q1BnQP2/1p6/4B2N/bkBR1Q1r b - - 0 1 illegal: No proof kernel
1qN2BR1/R1Np1b2/K3Q1q1/5PP1/B1n1bR2/3b1r1n/2rNr1Q1/2bkR1N1 b - - 0 1 illegal: No possible last move, all moves rejected
Br2r1RN/K1P5/8/5b2/R1n1QPqr/nN2B1RQ/pqNbN1R1/1r1k2b1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Ke4 c4 g5 b4 a5 h4 d5 f4 d3 f6 g4 h6 d2 f7 Ke3 h7 d4 b6 a4 b5 g3 h5 g2 h6 d3 b7 a3 b6 Bf5 Qa4 Nc6 b8R Na5 b7 Nf6 Ne2 g1B Rh2 Nd5 Bg2 Nc7 Kb6 e5 c5 e4 c6 Nb5+ c7 Bb4 f8N Qf6+ Ne6 Qb2 Rg8 Rb8 Nc5 Nc4+ Ka6 Kf2 Nb3 Ke1 Rg3 d1Q Be3 d2 Bh1 Rhe8 h8Q Bc3 h7 a2 Rhg2 Nba3 Ka7 Ba5 Qc3 Bb4 h8N Ba5 Qf6 Bc3 Qh4 Bb4 Qh3 Ba5 Nec1 Qg4 Ne2 d1R Qc6 Bd2 Qe6 Nc2 Na3 Rb1 Qd5 Kd1 Qd4 Rbd8 b8R Rc8 Rb4 Rb8 Nf7 Rh8 Ra4 Rh6 Nh8 Rh4 Bf2 e3 Qe4 Nd4 Nc2 Nb5+ Ka6 Nba3 Ka7 Rb4 Nec1 e2 Be3 e1R Ne2 Qh5 Rg8 Rb8 R2g3 Qg4 Bf3 Rc1 Rb1 Qc3 Rb2 Rb1 Qe6 Qcg7 Ba8 Qf6 Qe4 Qfg7 Nca1 Qe5 Rc2 Qb2 Nec1 Na5 Qd4 Rf8 Bf2 N5c4 Qd3 Re6 Qe4 Bb4 Be3 Rb8 Rcg2 Bd2 Nc2 Ree8 Ne2
RNQ5/1QPq4/N1n1nnBK/1kNQ2P1/1B1bb2b/3r1rQ1/1n1Rq2p/6N1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 e5 Kg4 d5 Kh5 Kd7 f4 h6 g4 a4 c4 e4 b4 a3 f6 d3 g6 e3 f5 d4 f7 a2 c5 d2 g7 d3 c6+ Kc7 f6 Kb6 c7 e2 Nc3 e1N Ba3 Bb7 Ne4 Qc8 Nc5 Bd6 f8Q Be4 f7 Nf3 Rh2 Qd7 Qc8 Be7 f8Q Nd4 Qf2 Bh4 g5 Nbc6 Qg4 d1N Qgg3 d2 Bd3 Ne6 Qd4 Bg2 Bg6 Be4 Qdf2 Nb2 Qfe3 Nge7 g8Q d1Q+ Re2 Qe1 Rd2 Nd5 Qf7 Rf8 Qf5 Nde7 Qd5 Rf3 Qef2 Qe2 Qe3 Ng8 Qed4 Rb8 Qdf2 Ka7 b6+ Ka8 b7+ Ka7 b5 Kb6 Qfd4 Ra8 Bb4 Raa3 b8N Rad3 Rad1 a1B Nba6 Na4 Qe3 Bd4 Ra1 Nb2 Nb8 Qe7 Ra8 Qd6 Nba6 Qd7 Ba3 Ka5 b6 Kb5 b7 Nc4 b8N Nb2 Bf5 Nf6+ Kg6 h5 Bb4 Rc3 Kh6 Rd3 Qg2 Be1 Bg6 h4 Qg3 h3 Qg4 Bh4 Qg3 Be5 Qed4 h2 Nb7+ Ka4 Qa7 Bd4 Nbc5+ Kb5 Qab7#
3b4/2PrrBn1/Nqq1P1Kb/QR5Q/pQ3R2/1bQ5/NB2kn2/1B2qb1B b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 e4 f5 c4 a5 b4 a4 h4 g3 c6 d4 h5 g2 b6 g6 c7 d3 b5 d2 b7 Bg7 c5 Qd4 Kg5 f4 c6 f3 b6 f2 h6 Ra6 h7 Bf8 Rh5 Bd7 c8B Qc5 Bb2 Nf6 Nh3 g1Q+ Bg2 f1B Nf2 Ng4 Nd3 Nf2 Nb4 Ra7 Nc3 Na6 b8Q Nc7 b7 Ne8 Na6 Ng7 Na2 Qd5 Kh6 g5 Bh1 g4 Qa8 g3 b8Q g2 Kg6 Qd6 Qc1 d1Q Qc3 Qe1 Qbb4 Be7 Rd1 Re8 h8Q Bd8 Rd4 Re7 Rg5 Rc7 Qh5 Qc5 Bb7 Bc8 Rc4 Rcd7 c7 Qc6 Qa7 Nd3 Rf5 Qgb6 Rf4 g1B Rc5 Be3 Rb5 Qbc5 Qb6 Nf2 Q6a5 Q6b6 Rf7 Bh6 Rf4 Rd2 Bc6 Bb7 Be8 Bd5 Bc6 Bb3 Ba8 Kd7+ e6+ Kd6 Bd5 Rd3 Bc4 Rd2 Bd3 Kc6 Bb1 Rdd7 Rf3 Kd6 e5+ Kd5 Kh7 Rf7 e7 Qc6 e8B Rfe7 Qh3 Qb6 e6 Qc6 Kg6 Qb6 Bd3 Qc6 Bf7 Qb6 Bc4+ Ke4 Qh5 Qcc6 Rff5+ Bg2 Bd3+ Ke3 Rf4 Bh3 Rg4 Bf1 Bb1+ Ke2 Rf4+
rNk2b1b/1BPR1bR1/Bqp5/NNB1N1nQ/1n4nK/P7/Q4B2/rq2b3 b - - 0 1 illegal: No possible last move
N5R1/1Pb2r1n/1N1R2Bn/1k3Q2/rPB3b1/1n1QN1q1/1K1pbq2/2B2NbB b - - 0 1 illegal: No possible last move, all moves rejected
qnr1RB2/1PRbR3/2bkB1N1/b1b1NP1q/2Q2n2/3B2rp/nKB2Q2/7R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 d5 Kc2 Kd7 g4 e5 b4 h5 f4 d3+ Kb2 e4 c5 a4 g6 e3 g7 e2 g5 e1B f6 d2 g6 d4 c6+ Kc7 f7 h4 b6+ Kd6 b7 h3 c7 d3 b5 Qh4 b6 Nh6 g8B Qf2 g7 Qe2 Bh7 Na6 g8B Nf5 b8R Ng3 b7 Bd7 c8R Nh5 Qc2 d1B Nf3 Ba5 Nc3 d2 Nd5 Qe8 Ne5 Bf3 Ne7 Bfc6 N7g6 d1N+ Kb1 a3 Qc4 Be7 f8Q a2+ Kc2 Ra7 Rc7 Nc3 Bd3 Ra8 Rb1 a1Q Be6 Na2 Qf7 Rg8 Ba3+ Nc5 Rd8 Rc8 Rbe1 Qd1+ Kb2 Qa4 Nf8 Rg3 Nfg6 Qb5+ Bb4 Qa6 Qf6 Qa8 Qh4 Qh8 Re8 Bf8 f5 Be7 Bhg8 Nf4 Re3 Qh5 Re2 Rg2 Qf2 Rg3 Bef7 Qh7 Qe4 Qh5 Nf3 Bf8 Bb3 Bg7+ Bc3 Bf6 Bbc2 Na6 Qc4 Nb8 Ree1 Bh8 Bg7 Qh4 R1e7 Qh5 Be6 Qh4 Kb1 Qh5 Bf8 Bd4 Nfe5 Bc5 Kb2
Qr1q3B/1p3R2/2r1q1kb/B2NBR2/bP1n1q1P/2N2n2/N3qN1Q/B4n1K b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 Nd7 cxd5 Nb8 g3 Kd7 g4 Ke8 b4 h5 gxh5 a5 Bc4 a4 Bb3 axb3 Kf1 Kf7 Kg2 g5 f4 e5 h4 c5 a4 e4 d4 b2 a5 e3 a6 g4 h6 c4 h7 g3 d6 c3 a7 c2 d5 e2 d7 e1Q d6 Qf6 d8N+ Kg7 d7 Qfe7 f6+ Kh6 f5+ Q7e3 f7 Q1d2+ Qe2 Qe5 f6 Ne7 Nh3 Qdg5 Nc3 b1Q Rf1 Qb3 Bb2 c1Q Na2 Qec3 Nf2 Qf5 Ne6 Qa5 d8B Qf4 Nd4 Nd5 Nb5 Ne3+ Kh1 Qd2 Be5 Nc6 Nbc3 Rb8 a8N Kg6 Nc7 Bh6 f8Q Bd7 f7 Qe6 N7d5 Nd4 Rae1 Qa8 Ba5 Ba4 Rd1 Rg8 h8B Qe1 Qb2 Qe2 Qd8 Rg7 f8B Rc7 Bfg7 Rc6 Qg8 Qaa6 Rd2 Qb6 Rd3 Qd8 Qd2 Ng4 Rf3 Nh2 Qb2 Qfd2 Rf5 Qf4 Rd1 Nf1 Rd3 Rc4 Rf3 Rc6 Rf7 Qfg5 R3f5 Qf4 Qc2 g2+ Kg1 Qdg5 Ng4 Rd8 Nd1 Nb5 Bd4 Q2e4 Ba1 Nd4 N1c3 Re8 Qf2 Qe2 Qf8 Ra8 Be5 Qge7 Qb8 Qd8 Qa7 Rb8 Qa8 Ng3 Kh2 g1N Qg2 Nf1+ Kh1 Ngf3 Nf2+ Qg3 Qh3 Qf4 Qh2
1bqB1Nb1/1p5r/4r1bQ/1P4N1/R3Rn1B/PnkBbQQ1/q1B3n1/5K1Q b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 c4 gxh4 Qa4 Nh6 Qxa5 d5 cxd5 Ng8 Qa4+ Nd7 Qa7 Nb8 f4 Kd7 d4 Kd6 b4 h5 g4 e5 g5 c5 f6 c4 g6 e4 b5 h3 f7 h4 g7 e3 f5 c3 f6 e2 Nd2 c2 Ngf3 h2 Qa3+ Kc7 d6+ Kb6 d5 h3 d7 Bd6 f8Q Ne7 g8B Ra6 f7 Nbc6 Nd4 Rh7 Ne6 Nd4 Qg3 Ka5 Qh6 Kb4 f8Q Ng6 Nf3 Nf4 Nfg5 Nb3 Be3 c1B Bf2 Qe8 d8Q Be3 Bf7 Bd7 Bg6 Kc3 Bc2 Bb8 d6 Rc6 Rg1 h1B a3 Bc8 d7 h2 Qf7 Qg8 Nf8 Bd5 Qde8 h1Q d8B Qh5 Qe4 Qh2 Qh1 Bf5 Qfh5 Rd6 Q5f3 Bg6 Rd1 Qh3 Rd4 Qc8 Re4 Bdf7 Rg2 Re6 Rh2 Qg7 Rh4 Bg8 Bh3 Qe5 Bf5 Qd5 Ra4 Nc5 Bfd3 Qa2 Re4 Nb3 Ra4 Nh3 Rhe4 Nf4 Bg1 Bc1 Kf2 e1N Kf1 Neg2 Bf2 Bd2 Qgh3 Bc1 Bh4 Be3 Qhg3
Kb6/PB1R2R1/3Pr1nN/1nB2Bp1/rNqB2rk/n1N2q1b/1Q6/3QN1r1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kf3 g5 Ke4 c5 h4 b5 d4 c4 a4 b3 h6 b2 h5 c3 a5 b4 e6 Kf6 h7 b3 a6 c2 a7 Bd6 e7 Nd7 e8N+ Ke7 h6 f6 Bh3 Bf4 d6+ Kf7 Kd5 Kg6 Kc6 Kh5 e4+ Kh4 e5 f5 d5 Ngf6 e6 Kg3 e7 Rb8 Nf3 Nf8 d7 Ng6 Nd6 Qf8 d8N Rb4 e8B Ne4 N6f7 Nd6 Be3 c1Q+ Bc5 Qc4 Nc3 b1N Ne1 b2 Bd7 Na3 Bg2 Rg8 h8Q b1R h7 Ndb5 Nh6 Bb8 d6 f4 Bf5 Bd7+ Kb7 f3 Nc6 f2 Ka8 Ra4 Nb4 f1R Bb7 Rg1 Qhd4 Rb2 h8B Rbg2 Rb1 Qff7 Q4d2 Re8 Bhd4 Re6 Qb2 Qf8 Rh4 Bc8 Rf4 Bd7 Rf2 Kh4 Re2 Rg4 Re5 Rf6 Re7 Re6 Rg7 Qf7 Bd3 Qf3 Bf5 Bc6 Rd7 Be4 Rg7 Bd3 Rc1 Bf1 Rc2 Bh3 Re2 Rf6 Ree7 Re6 Rd7
B2Q1q1B/P1R2Pqr/1rQ1R1Br/nk6/1n4n1/1Q1N2B1/rQ1N1p2/3K1bb1 b - - 0 1 illegal: No proof kernel
Qr1n1rB1/1Nb2RN1/3r4/Br1N3R/1P1nr1p1/1RK4R/2PNQ1k1/5rqb b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 f4 Kf6 h4 d5 b4 a5 b6 g5 b7 e5 h6 a4 h5 a3 h7 a2 h6 e4 Qe1 g4 Ne2 d3 Rh4 d4 Rh3 Bd6 Nec3 Qb6 Qe2 Nc6 b8N Nd8 Nc6 Rb8 Na5 Ne7 Nb7 Rf8 h8R Bc7 h7 Nec6 Bg2 Be6 Rh5 Bd5 Bf1 Kf7 f6 Ke6 f5+ Ke5 f7 Kf4 f6 Kg3 Bg2 Bb3 Nd5 e3+ Kd1 Qc5 Nd2 Qa7 Rb1 a1R Rb2 Ra5 Bh1 Bc4 Rb3 Ba6 Be4 Rb5 Bf5 Qc5 Be6 Qa7 Rg8 Qb6 h8R Qc5 Rg7 Qb6 Qe1+ Kg2 Rh3 Qa7 R8h5 Qc5 Bb2 e2+ Kc1 Qa7 Ba1 Qb6 Kb2 Qc5 Qd1 e1R Rgh7 Re4 Qe1 Rg8 f8Q Rh8 Qe8 Rf8 Bg8 Qb6 f7 Qc5 Nf1 d2 Qe3 d1R Nd2 d3 Qe2+ Qf2 Kc3 Nd4 Bb2 Rf1 Bc1 Rb6 Qa4 Bb5 Qa8 Bc6 Bb2 Rfe8 f8N Rb5 Ne6 Rf8 Nf3 d2 Rf7 d1R Ng7 Rd2 Bc1 Rdd1 Bg5 Rd2 Qe3 Rdd1 Nd2 Qg1 Qe1 Rf6 Qe3 Rdf1 Qd3 Rd6 Be3 N4e6 Bb6 Nd4 Ba5 Ree6 Nf4+ Kf2 Rg5 Bh1 Rgh5 Re4 Nd5+ Kg2 Qe2+
k2Rq1R1/N5b1/3QNbbr/3n1p2/b2Q4/B2RBP2/r2R1Pbb/1K2nBB1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 h4 b5 a4 gxh4 axb5 Qd7 Ra4 Qg4 Ra1 Qf3 exf3 Kd8 Ra2 Kd7 Ra1 Ke8 g4 Kd8 b4 c5 d4 Kc7 Kd2 Kb7 Kc2 h5 g5 e5 d6 a5 d7 c4 d8B e4 b6 h3 g6 c3 b5 h2 g7 e3 d5 h4 d6 h3 d7 e2 Bh6 e1Q Nd2 a4 Be3 a3 Ne2 a2 Qc1 Nc6 Bc7 Nd4+ Kd3 c2 d8R Bf5+ Ne4 Ne7 g8R Rh6 Nc3 Bg6 Qb2 c1B Bd6 f5 Ng5 Bg7 Ba3 Nc2 Ne6 Nd5 Rg1 Bd2 Rd1 h1B Qb4 a1B Qd4 Bc1 Rd2 h2 Rg4 Bg2 Re4 h1B Re5 Ne7 Red5 Bh3 R5d6 B1g2 Rd5 Rc8 R5d7+ Kb8 b7 Nd5 Rd6 Bg4 R6d7 B4h5 Rd6 Nb6 Rd5 Ka7 b8B+ Ka8 Bh2 Be8 R5d7 Bhg6 Bg1 Nd5 b6 Rb8 Rd6 Ba4 Nb5 Bc3 Na7 B3b2 Qc4 Bbf6 Qd4 Bb2 Qe4 Bbe5 Qd4 Bh2 R6d7 Ndb4+ Kc3 Nd5+ Kb2 Qe2 Kb1 Ne1 Rc7 Rc8 Rc3 Kb7 Rb3 Rc2 Rbd3 Ra2 Bf4 Ka6 b7 Qe3 b8Q Qe5 Nf8 Qe8 Qd6+ Kb7 Bg5 Bh3 Ne6 Bg2 Nc8 Ka8 Be3 Qd7 Na7+ Qc8 Rd7 Qe8 Rd8+
1b1Nb3/N3b2B/Rr1B3p/4bNk1/1R3nb1/b2P3P/R2nNK1Q/1Q1R2rq b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 Ba6 fxg5 Bc8 c4 e5 g4 Ke7 b6 f5 b7 a5 g6 Kf6 g7 a4 h3 a3 c6 e3 c5 e2 c7 e4 c6 h6 Qa4 a2 Ba3 f4 Qb3 f3 Nc3 Ne7 g8R Nd5 Kf2 Na6 b8R Nc5 Rb4 Ra6 Na4 Nf4 Qb1 Nb3 Nc5 Qd5 Nb7 Be7 Nd8 Rb6 g5+ Kf5 g6 Kg5 g7 Bg4 c8Q e1B+ Ke3 f2 c7 Rh7 Bd3 f1B Ne2 Bg3 Qb8 Bh2 Kf2 e3+ Ke1 Qa8 c8N Qg2 Rg1 Qh1 Na7 Rh8 Rf8 Rg8 Rf6 Bg2 Re6 Bc6 Bh7 Be8 d3 Nd2 Rf6 Rb7 Ra6 Rb6 Nc3 e2 Kf2 Nb3 Rd1 e1B+ Ke3 Bd2+ Kf2 Bc1 Ne2 Nd2 Qc7 Ng6 Qcc2 Bb8 Qc7 Bb2 Qg3 Nf4 Qh2 Rf8 g8N Bc1 Nf6 Rg8 Nh5 Rg7 Nhg3 Rgg6 Rc4 Rg8 Bd6 Ba3 Nf5 Rg6 Qb2 Rg7 Rca4 Rg6 Rab1 a1B Qc2 Rg7 Rbb4 Be5 Qb1 Bc1 Qg2 Rf7 Nh4 Nh5+ Ke3 Rf1 Ra2 Rg1 Qh2 Ba3 Nf5 Nf4 Kf2
1R1n2b1/KN2r2B/p1P2Qr1/B1BR2rQ/6r1/b3P2n/1R1rR2k/1q1r1BN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 h4 Ke6 b4 Kf5 c4 Kg4 h6 g5 b6 d5 b7 f5 h5 f4 e6 f3 c5 d3 Ke3 Kg3 Kd4 g4 e7 f2 e8B d2 e3 a6 b5 Rh7 b6 Qd7 Ba3 Nf6 Nc3 Qf5 Nb5 Qb1 Nd6 Ne4 Bg6 Ng5 Rh2 Re7 h7 Nh3 h8B Be6 h6 Bg8 h7 Ra7 Qe2 d1R+ Bd3 Rd2 c6 Nd7 b8R Ne5 Kc5 d4 b7 Nf7 Bf6 Nd8 h8Q Re6 Be7 Rg6 Bb4 Rg5+ Bf5 d3 Kb6 Rg6 Qf6 Rg5 Bg2 f1R Ra5 Rf4 Bh7 Rg6 Bf1 Rf5 Rc8 Rfg5 b8R Rc7 Qd1 Ra7 Re2 Rc7 Bg2 Kh2 Rd5 g3 Bf1+ g2 Nb7 Rd7 Bc5 Re7 Ka7 Rg4 Re1 R4g5 Qh5 Rg4 Ne2 g1R Ba5 R4g5 Rc7 R1g4 Rcc8 Rb2 Rc7 d2 Ng1 d1R Rcd7 Rbg2 Rd2 Rf2 Rb2 Rfd2 Rd5 Rf7 Bcb6 Ba3 Bc5 Re7 Re2+
8/2R2p2/RQ1Q3P/2K4b/2n1Br1b/1N1rBn1N/nPRBk1R1/1n1qBnn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 d4 Kd6 h4 c5 e4 g5 b6 a5 h6 c4 h5 f3 Ke3 g4 h7 a4 b7 c3 h6 a3 Nh3 a2 Nd2 g3 Rg1 f2 Bd3 g2 Nb3 c2 Bd2 Nd7 b8R c1N Rb7 Nb6 Rc7 Be7 Rc2 Bh4 e5+ Kd7 e6+ Kd6 e7 f1N+ Ke4 Bg4 e8R Nc4 Re7 Ra4 Rc7 Ne7 Be1 Re8 h8B Bh5 Bf6 Rg8 Bg5 Ng6 Be3 Nge5 Qd2 Rg3 Qa5 Qd7 Qb6+ Ke7 d6+ Kf6 Kd5 Nf3 Be4 Qg4 Nf4 Kg5 Kc5 Qd7 d5 Kg4 Nh3 Qd8 Rb1 a1N d7 Na2 d6 Rb4 Rd1 Ra4 Rdd2 Rb4 Rh1 g1N Rg2 Ra4 Ra7 Rb4 Ra6 Ra4 Rhh2 Rb4 Rc1 Nc2 B1d2 N2a3 Be1 Qe8 d8Q Qa4 d7 Nb1 Rcc2 Nbd2 Qdb8 Nb1 d8B Qd7 Rh1 Qd1 Q8d6 Nce5 Qbc6 Qd3 Bf4 N1h2 Bf2 Ne2 Bdg5 Nfd2 Bg6 Rb6 Rc3 Rb4 Qb6 Kf3 Rhc1 Nhf1 R1c2 Ng1 Be1 Re4 Rc4 Qe2 Kd5 Qd1 Rc6 Nec4 Kc5 Rd4 Rc8 Rd3 Rc7 Rg4 Be3 Re4 B3f2 Rg4 Be4+ Ke2 Rc3 Ndf3 Bgd2 Rf4 Rc2 Bg3 Bfe3+ Bf2 Rg5 Bh4 Rg2+
1r4B1/p1rb2Bk/b2RN3/P1RnKPbb/b2N1Q1B/3qB3/6RR/nb1Q4 b - - 0 1 illegal: No proof kernel
3RNBr1/1n6/2kR3R/P1b2qp1/n1Q1P1Q1/rbrQ3K/b3Nb2/1BrRQ3 b - - 0 1 illegal: No possible last move, all moves rejected
b4b1b/RN5K/1Q1rN1pN/2B2r1P/B1qr2P1/4Q1nk/R3B2n/3r1NbB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 d5 fxe5 h4 c4 Nf6 cxd5 Ng8 Qb3 Bb7 Qd3 Bc8 Qg3 hxg3 e4 Ke7 Ke2 f5 Ke3 c5 Kf4 a5 Kg5 a4 Kg6 a3 b4 c4 d4 a2 h4 c3 b6 c2 b7 f4 e6 g2 d6+ Ke8 e5 f3 h5 f2 d5 Ra7 b5 Be7 b6 Ra5 d7+ Kf8 d6 Bf6 Be2 f1R Nf3 g1B Be3 c1R Nbd2 Rcd1 Bc5 Rfe1 Ng5 Qc7 d8N Be7 d7 Nf6 Rh2 Ne4 Ngf7 Nc6 b8Q Ng3 b7 Nd4 Nh6 Nf3 Nf1 Rd4 Qa7 Red1 b8Q Bb7 Rf2 Rg8 Kh7 Ba8 Qbb6 g6 Nb7 Ra6 Rg2 Nh2 d8N Ke8 Rf2 Bf8+ e7 Kd7 Ne6 Qc8 Qb2 Rad6 e8B+ Ke7 Ba4 Qc6 Qc3 Qd5 Qe3 Qc4 Qb6 Rg7+ Kh8 Rf7 Bc6 Rf3 Kh7 Rff4 Bh1 Rf5 Rc1 a1B Rb1 Bc3 Ra1 Bb2 Ra7 Bc3 Ng7 Ba1 e6 Kf6 e7 Bc3 e8B Bb2 Qf3 Kg5 Qe3+ Kh4 Ne6 Kh3 Bb5 Re4 Ba4 Bh8 Bd3 Ref4 Ra2 Rfd4 Be2
rb1B2B1/Q1n1Q3/b3P2B/4r1NP/2qpn3/nnb2K2/1bRB1N1k/1R2RR2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 b4 Ke6 h4 Kf5 c4 Kg4 e6 a5 e7 g5 e8R d5 b6 f5 c5 d3 b5 a4 b7 a3 h6 a2 b6 f4 e4+ f3 e5 d2 h5 d4 c6 Bb4 c7 Na6 b8B Bc3 b7 Qd5 h7 Qc4 Rf8 Nf6 Qe2 Kf4 Ba7 g4 b8Q Bb7 c8R Nc7 Rfe8 Ba6 Bb6 Bb2 Re6 Re8 Nc3 Re7 Rb1 a1B h8B Re8 Bg2 g3+ Kf1 f2 Nd1 Ne4 Nf3 Bc3 Qa7 Bab2 Bg7 Kg4 Rg1 Re7 Bh1 Kh3 Ng5+ Kh2 Bh6 Re8 Ne3 d1N Bd2 Re7 Bg2 Re8 Bh3 Re7 Bf5 Re8 Bh7 Re7 Bg8 Re8 Qd3 g2+ Ke2 f1N Kf3 Re7 Qe2 Re8 Nf5 Nde3 Ng3 Nc2 Nh1 Na3 Qe1 Nc5 Rf6 Nb3 Nf2 Ng3 Qe2 Ne4 Rge1 g1B Qe3 Nd5 Bd8 Nc7 Rf4 Rf8 e6 Rf5 Qd3 Re5 Rf6 Ng3 Qh7 Ne4 Qe7 Ncb5 Rc5 Nc7 Nd1 Be3 Nf2 Bf4 Ra5 Nc2 Ra2 Na3 Rf8 Ba1 Rc2 Bab2 Rf6 Ne8 Nh1 Rd5 Kg4 Bb8 Rff1 Nc7 Kf3 Re5 Nf2
1rr1n3/B1Q2Q1b/1PK1bRbq/1RP1N1bQ/3N4/p2B1R2/Q1r1n3/k3r1R1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 Kf6 Ke4 g5 Kd5 e5 c4 a5 f4 d3 h4 d6 b4 a4 b6 d2 b5 e4 b7 a3 h6 g4 h5 e3 h7 g3 h6 g2 Rh3 e2 Nf3 g1R Qb3 e1R Qa2 d1B Nd4 Qb6 Rf3 Bc2 Bd3 Nc6 b8R Be7 Be3 Rg2 Nd2 Rge2 Rb7 Rb8 Rb1 Bd8 Rg7 Bd7 Rg1 Be8 Bf2 Bg6 Rb3 Na5 Rb1 Nb3 Be3 Nc1 Bf2 Qa7 Kc6 d5 Be3 Qg7 Rb4 Kf7 f6 Rh2 f5 Ne2 b6 Rg2 c5 Rf2 Nc4 Bb1 Ne6 d4 Rb5 Rg2 Bf4 Qf8 Be4 d3 Nd4 d2 Bd3 d1B Bg3 Bb3 Ne5+ Ke8 f7+ Ke7 Bh2 Be6 Bf4 Qg7 f8R Nf6 Bh2 Rg8 h8Q Ne8 h7 Qh6 Rf6 Rf8 Qg8 Bc2 h8Q Bh7 Qg3 Bb1 Rg6 Bc2 Rg7+ Kf6 Qf4 Bg6 Bg3 Bh7 Rg6+ Ke7 Rgf1 Ng7 Nf7 Qh2 Qg8 Ra8 Nb3 Nc3 Rg1 Qh6 Bf1 Rd2 Bc4 Ne2 Qg4 Bd3 Bb8 Rc2 Ba7 Rb8 Qh5 Re8 R6g4 Kf6 Rgf4 Be7 Qf8 Bd8 Qd6 Be7 Qc7 Rec8 Nd6 Ke5 f6+ Bdf5 f7 Bg5 f8Q Bfg6 Rf6 Ne8 Nf7+ Ke4 Rff1 Ke3 Nd4 Kd2 Ne5 Kc1 R1f3 Rb2 Qb3 Kb1 Qf7 Ka1 Bd3 Rc2 Qa2+
r4bq1/2b1P2Q/1Qb1pB2/1B6/n1R1r1nR/P2BN2R/B4N1k/2n1KbRn b - - 0 1 illegal: No possible last move, all moves rejected
r6N/1Pb2K2/BrRR2P1/N2pq3/1b3nQQ/Nk3b2/3nbBBN/r5rB b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 c4 e4 b4 d6 g4 h3 g6+ Ke7 c5 e3 b6 h2 g7 d3 b5 a4 g5 d2 f6+ Kf7 c6 a3 c7 a2 f5 e2 b7 e1B b6 Bd7 c8B Qe8 Nf3 Qd8 Na3 Nh6 g8B+ Ke8 f7+ Ke7 Bg2 Bg7 f8N Na6 b8Q Nc5 Ba6 Nb3 b7 Bb5 Nd7 Qe8 Nb6 Ng4 Nbc4 Nf2 f6+ Kd7 f7 Rh6 Qe2 d1B Be3 Nd2 Rc1 Nh3 Bf2 Be5 f8N+ Ke7 Qe4 a1R Qg4 Bf4 Rg1 h1R Nh2 Re6 Bh7 Bf3+ Be4 Kf7 Rf1 Rg1 Ng6 Bg3 Qd8 Nf4+ Kd4 d5 Nh8+ Kf8 g6 Rb6 Qdh4 Qe5+ Kc5 Ke8 Qhh3 Kd8 Qhh4+ Kc7 Bh1 Bd1 Beg2 Bf3 Ne3 Bbe2 Nec4 Qe8 Kd4 Qb8 Ke5 Kc6+ Kf6 Qd6+ Kf7 Qe5 Ne3+ Kd6 Rb1 Kc5 Rc1+ Kb4 Rc6 Kb3 Nec4 Nb1 Rd6 Bb4 Rc1 Nd2 Na5+ Kb2 Rcc6 Ka2 N5c4 Kb3 Qh7 Bh4 Qhh5 Bd8 Qhh4 Bc7 Na5+
2N1NBRr/KP5p/5R1q/Q1Nr1b1P/3n1k1Q/RRr1rB1n/b1b5/2N1b3 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 dxe5 Na6 axb5 Nb8 f4 gxf4 Kf2 Ke7 h4 Ke6 e4 a5 c4 d5 g4 f5 h5 d4 g5 d3 c6 f3 Ke3 a4 g6 a3 c7 a2 g7 f2 b6 d2 b7 Nh6 g8R Nc6 c5 Ra7 Nc3 Nf7 Qa4 d1R Bg2 f1B Nge2 Qd6 Bf3 Bg7 Rh3 Re1 Qa5 Bf6 Ba3 Nd4 c6 Nd8 Na4 f4+ Kd3 Bh4 Kc4 Bd7 c8R Nf7 c7 Ng5 Rcf8 Bc8 Rb1 a1R Rb3 Rad1 Bb4 Rd3 Nc1 Ree3 Bc5 Bd7 c8N Be1 Rf7 Qb6 Bf8 Be2 Rg3 Nh3 Ra3 Qa6+ Kc5 Bd1 Rb3 Bc2 Rf5 Qc4+ Kb6 Rc3 Ra3 Ra8 Rf7 Rb8 Ka7 Qc6 Rf5 Be8 Rb3 Bg6 Rf7 Bf5 Rf6+ Kd7 Ra3 Qd6 e6+ Kc6 Bh1 f3 e7 f2 e8N f1B Bf3 Bc4 e5+ Bd5 e6 Qf4 Ka6 Qh6 e7+ Kd7 Ka7 Ba2 Rf7 Ke6 Nc5+ Ke5 Rf6 Bab1 Nc7 Kf4 e8Q Ba2 Qe7 Re6 Ne8 Ree3 Ncd6 Rd8 Nc8 Be4 Rb6 Bc2 Qh4+ Ke5 Rbb3 Rd6 R3g6 Rd5 Qf2 Kf4 Re6 Bfd3 Rf6+ Bf5 Qh4+
7Q/P1KNRRnn/1n1N2n1/k5b1/P3rq1b/rBQbB3/4pB2/b1B3NN b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kd7 Kd3 g5 Kc4 b5+ Kc5 e5+ d6 e4 h4 e3 d4 g3 f4 b4 a3 b3 d5 e2 a6 b2 f6 g2 f7 g4 h5 g3 f5 Qf6 h6 Ne7 h7 Nbc6 Qd3 Ne5 Nd2 b1N Qc3 N5g6 Ne4 Bg7 f8B Nd2 Nf2 Nc4 a4 Nb6 a7 Ba6 Rh5 Bd3 Nh1 Re8 Rh3 Kc8 d7+ Kb7 d8N+ Ka6 d6 Qf7 f6 Nf5 Kc6 Re4 d7 Rg8 Nf3 g1N h8Q g2 Rh7 Nh3 Nb7 g1B d8B Bf2 Ng1 Ng5 Bc5 Bh4 Bh3 Qf8 f7 Be5 Bce7 Ng7 Be6 Bd4 Bc5 Bf6 Rh6 Nh7 Bf2 Qb4 Nd6 Ka5 Kb7 c5 f8N c4 Nd7 Rf8 Rh5+ Bfg5 Kc7 Rf3 Bd5 Bf6 Re5 Rg3 Qa3 c3 Re7 c2 Qc3 Be5 Bce3 c1B Bb3 Bef6 Ra3 Bb2 Ra1 Bfg5 Rf1 Ba1 Bc1 Rf3 Bfe3 Rg3 Rff7 Rh3 Re8 Rf3 Bf6 Rh3 Ree7 Rg3 Bfd4 Rh3 Qc2 Qd2 Bf2 Qf4 Qc3+ Ka6 Qc4+ Ka5 Bd1 Bb1 Qc6 Ra3 Bde3 Bd3 Bb3 Bg3 Qc2 B3h4 Qc3+
4b2B/1RNqNb1R/3N1k1b/2B2P2/qrBKB3/1Q2pq1r/1n2Pqr1/5Q1N b - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 a4 d5 axb5 Nc6 cxd5 Nd4 Qc2 Ne6 Qd1 fxg4 Qa4 g3 Qb3 g4 Qd1 Ng5 hxg5 Bf5 Ra5 Be6 Ra1 Bc8 d4 Kf7 Kd2 c5 Kd3 a5 b4 e5 f4 h5 f5 h4 d6 a4 d5 a3 d7 g2 b6 a2 d6 h3 b7 g3 b8B h2 g6+ Kg7 b5 Qa5 d8N Be6 d7 Rh3 b6 Nh6 b7 Bf7 Bd6 Qa3+ Nc3 Ng4 b8Q Kf6 g7 Ne3 g8B Nc4 Nc6 Ra4 d8N Bh6 Bb2 Rb4 Rb1 a1Q Ne7 Qa8 Qb3 Q1a4 Nb7 Qd7 Ba1 Qaa4 Nb5 Nb2+ Kc3 c4 Nc7 e4 Bc5 e3 Nd6 Be8 Kd4 c3+ Bc4 c2 Qa8 c1Q Qf3 Qe1 Qf4 Qf2 Qf3 Rh5 Nh3 g1Q Bg2 Qgf1 Rg1 h1B Qf4 Bf7 Be4 Qf3 Nf2 Rh3 Rg2 Be8 Rg1 Bg2 Nh1 Q3f2 Bd3 Bd5 Be4 Bdf7 Qf3 Nd1 Qg2 Qf3 Bc3 Q1f2 Qf1 g2 Ra1 Qac6 Ra7 Qa4 Rb7 Nb2 Qc1 Nd1 Kd3+ Kg5 Bh8 Nb2+ Kd4 Bf8 Rf1 g1R Qb1 Rgg3 Rg1 Bh6 Qf1 Rg4 Rg3 Rh2 Rh3 Rgg2 Rh4 Rh3 Rg4+ Kh5 Rg7 Kh4 Ng6+ Kg5 Ne7+ Kf6 Rh7+
n3qnRN/1R1B4/rrP1r1QB/2BQ4/r2Qp1K1/N2n2b1/3QP1k1/1q1B2q1 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Qd8 g6 Bb7 g5 Bf3 h3 Bg4 hxg4 Qc8 Ra4 Qc7 Ra1 Qd8 Kf2 h5 Kg3 e5 b4 Ke7 c4 Ke6 c5 f5 g7 a5 g6 d5 c6 a4 g5 f4+ Kf3 Kf5 b6 h4 b7 d3 b5 e4+ Kg2 Kg4 b6 f3+ Kh2 d2 Nc3 d4 Qe1 d1Q Nh3 a3 Nb1 d3 Qd2 f2 Nf4 a2 Na3 h3 Rb1 Ne7 g8Q a1R g7 Na6 b8Q Ng6 b7 Nc7 Qd5 Qe8 g8Q Bd6 Qa7 Rh6 b8B Nf8 Rb7 Re6 Qad4 Ra6 g6 Na8 g7 Be5 Bg2 f1R Rg1 Rb1 Qh7 Rbb6 g8B Qc2 Bc7 Qb1 Bd6 Rf3 Bc5 Bb8 Qc2 d2 Qg6+ Kh4 Qcd3 d1N Qd2 Nf2 Bf7 Rc3 Bf3 Rc4 Bg4 Nd3 Rg2 Re5 Bd7 Re7 Qgd6 Re6 Rg8 Rca4 Ng6+ Kg4 Nh8+ Kh4 Kg1 h2+ Kg2 Nb2 Kf2 Kh3 Ke3 h1Q Kf4 Kh2 Kg5+ Kg2 Kg4 Rf6 Q6e6 Bg3 Qed6 Rh6 Qg6 Nd3 Q2e3 Rh5 Qa2 Qb5 Bb3 Re5 Bd1 Re6 Qad5 Qb1 Bd2 Qg1 Bc1 Nb2 Qec3 Nd3 Bh6 Be5 Qe1 Bg3 Qd2
3q3B/1kqn2P1/B1pb4/Qbq5/bQPN1RN1/1RR4n/5Bbn/rR2K2B b - - 0 1 illegal: No possible last move
2Bb2R1/1n1N3N/n3Q3/3b2br/K1pP1kNQ/3n3R/2PBnNq1/R1b1b1R1 b - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 d5 fxg5 dxe4 h4 Qd7 g4 Bb7 h5 Bd5 g6 Qd8 g5 Ra6 g7 Rg6 hxg6 Bb7 Ne2 Ba6 Ng1 Bc8 b4 Kd7 d4 Ke6 Kd2 Kf5 Kc3 e5 Kb3 h5 b6 c5 b5 e3 b7 h4 b6 e4 Be2 a4+ Ka3 h3 Qd3 h2 Qb3 c4+ Qb4 Be7 Nc3 Na6 b8Q Nh6 g8R Bb7 g7 Qd5 g6 Bd8 Bf1 e2 Qb1 e1B Rf8 e3 g8R e2 g7 Qg2 Qb4 Beh4 Qa8 e1B Be3 Bd5 b7 Bhg5 b8N f6 Nh3 Nf7 Re8 Rh5 Nd7 Nd6 Qc6 Nb7 Rg1 h1N Qe7 Nf2 Nd1 Nd3 Bd2 Kg4 Qcd6 f5 Nhf2+ Kf3 Qb6 f4 Qbe6 Kg3 Rh8 f3 Ng4 f2 g8N Kf3 Be2+ Kg3 N8f6 f1N Nde3 Kf4 Nh7 Ng3 Nf2 Rh4 Rhg8 Rh5 Bg4 Ne2 Rh8 Bh6 Qh4 Bhg5 Ka2 a3 Reg8 Ndc5 Kb1 a2+ Kb2 Nd3+ Ka3 Bge7+ Ka4 Bg5 Rc1 a1B Rb1 Bc3 Ra1 Bb2 Bh3+ Kf3 Neg4 Bc1 Qe7 Ndf4 Nc5 Bb2 Nh6 Nd6 Nf6 Ba8 Bc8 Bd5 Nhg4 Bc1 Qh2 Rh6 Ncd7 Nd3 Qe6 Nb7 Rh7 Rg6 Rh4 Rh6 Nh7 Rh5 Qhe5 Bge7 Qg5 Kg3 Rh2 Kf3 Qh4 Bg5 Bc3 Kf4 Rh3 Qg3 Ba5 Qg2 Bd2+
1nnR3R/q2p1BQ1/1R3nB1/rP2B1rb/3Q1nr1/4K1N1/kN1P4/nr2B2R b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 f4 a5 g4 c5 g5 h5 f6 Ke6 f5+ Kd5 f7 Kc4 f8Q e5 f6 h3 g6 a4 f7 h2 b7 h4 g7 a3 b6 e4 b5 h3 Bb2 e3 Nf3 a2 Qd6 Qc7 f8R Ne7 Qe1 Kb3 g8B+ c4 Qeg3 Rh5 Qg4 Rg5 Qgf4 Ra5 Bh7 c3 Ng1 c2 Nc3 c1R Qg4 Rb1 Qdd4 Qc5 Kd3 e2 Na4 e1N+ Ke3 Nd3 Rd8 Nf4 Ne2 Qc7 Bg6 Qc5 Rg1 h1R Ng3 h2 Bc3 Ka3 Bc4 Qc7 Rc1 Rg1 Nb2 h1N Bcf7 Nf2 Rh8 Rg2 Rch1 Ne4 Rd8 Nf6 Rhh8 Nbc6 b8B Qa7 Be5 Bb7 Bc7 Ba8 b7 Nc8 b8R Rgg1 Rb6 Nb8 Be5 Bf3 Bc7 Ne8 Qg7 Nf6 Qh4 Bh5 B3e5 Ne6 Qd4 Nf4 Ne4 R1g4 Ng3 Rf1 Rd1 a1N Re1 Rf2 Rg1 Rf1 Rh1 Rb1 Nf5 Ne6 Bg3 Nf4 Be5 Ne8 Be1 Nf6 Be8 Kb3 Ng3 Ka2 Bef7+
BnNb1KNB/1Rq2B2/8/Q3RbQ1/3rp3/3B3R/P2rPrb1/q1r1R1kb b - - 0 1 illegal: No possible last move, all moves rejected
1NQ3r1/N1b2R1R/bP1pr1qP/B3Qn1Q/1Rk2nQ1/2nr4/1b2p2K/5BR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 b4 g5 f4 a5 Kf2 e5 Kg2 d3 c4 g4 b6 d6 b5 d2 c5 e4 b7 g3 c6 a4 h6 a3 c7 a2 h5 e3 f6 Ke6 f5+ Kd5 h7 Kd4 f7 Qh4 f6 Kc5 Na3 Qe4+ Nf3 Bg7 f8R Qg6 f7 Bb2 Ne5 Nc6 b8R Nce7 Qg4 d1N Bd2 e2 Nc6 Nf5 Ba5 Ba6 c8Q Nge7 h6 Rg8 h8Q Nd5 Qe5 Nc3 Rg1 Ra7 b6 Re7 Rb7 Re6 Rb1 a1B Kh1 g2+ Kh2 Rh8 Nb5 Rg8 Qh5 Kc4 Nba7 Nf4 Nb8+ Kd3 Rh1 g1R Rc7 Rg3 Rg1 Rg7 Rh8 Rg8 f8Q Rf3 Re7 Re3 Qd7 Kc4 Rhh7 Rd3 Reg7 Bc1 Rb5 Bab2 Rf7 Be3 Qfg7 Bf2 Qe8 Bh4 Qd7 Bd8 Qc8+ Bc7 Rb3 Qf6 Qgg4 Qg6 Rb4#
1b3K1n/1QR1N1p1/2r1P2k/br6/B1P1rn1N/p1BnR1qQ/R5b1/B5RB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 d5 Ke3 a5 Kd4 f5 c4 Kf7 h4 Kg6 b4 f4 e4 a4 h5+ Kg5 h6 g3 c6 a3 h7 g2 b6 Qd6 e6 Qd7 Ke5 d4 e7 d3 e8B d2 c7 f3 b5 f2 b7 Nf6 b6 Qa4 Qb3 Ra6 Ra2 Bc5 Bb2 d1R Nc3 Nh5 Nd5 Rd4 Nf3+ Kh6 Ba1 g1B Ne7 Nd7+ Ke6 Bh2 Kf7 Nf4 b8B Bb4 e5 Re4 e6 Nd3 b7 Ba5 Rg1 Nf8 Bg2 f1N Nh4 Ne3 Bh1 Ng2 Bb5 Qb4 Ba4 Ngf4 Bc3 Bd7 c8R Rc6 Bbe5 N8g6 b8R Qd6 Rc7 Rc8 Rbb7 Rb8 Qb1 Bc8 Rb3 Nh8+ Kf8 Rb5 Bf6 Bb7 Ba1 Nb2 Re3 Nbd3 Bfc3 Qe5 Qb3 Qg5 Qb4 Qg3 Qb2 Rbc5 Qb6 Rb5 Qa7 Ba8 Qb7 Ne2 Rd2 Qg5 Bab2 Rg4 Bd5 Ra6 Qb8 Nf7 Nhf5+ Kh5 Bh1 Bg2 Rc5 Re4 Qb7 Bb8 Ba1 Qg3 Rc7 Nef4 Ra2 Rc6 h8Q+ Kg5 Qh2 Nh8 Nh4 Kh6 Qh3
q1N1QRNN/1np1P3/1r1r2pk/rN2RBn1/BRPQ3K/3b4/6b1/n5bR b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 f5 dxe5 h6 g4 Ke7 gxf5 Ke8 Bg5 hxg5 f4 Kf7 Kf2 d5 Kg3 a5 c4 a4 e4 a3 h4 d4 b4 a2 b6 g4 b5 d3 b7 g6 b6 Kg7 e6 d2 h5 Be7 e5 Na6 b8Q Bc5 h6+ Kh7 b7 Qe8 f6 Qe7 f7 Nf6 f8N+ Kg8 f5 Nd5 h7+ Kg7 Nf3 Bd7 Nh2 Nc3 f6+ Kh6 f7 Nd5 Qe8 Be3 b8R Qa3 e7 Nf4 e6 Bc6 Nc3 Bg1 Nd7 Nc5 f8R Ra5 Rb4 Bg2 Nb6 Nh3 Nc8 Ng5 Kh4 g3 Bd3 Nb7 Bf5 Qa4 Rab1 a1N Nb5 Qa2 Qg4 d1B Qd4 Be2 Re1 Bd3 Re5 Rg8 h8N Rg7 Qa7 Rf7 Qd4 Rf6 Qed7 Qa4 e8B Qa3 e7 Rd6 Qd8 Qa4 Na3 Qc6 Nb5 Qa6 Bed7 Qa8 Ng4+ Kg7 Qc3 Be3 Rb2 Bdf1 Na3 Bh3 Qd4 g2 Qc3 g1R Nf6 Bhg2 Ba4 Kh6 Qd4 Bd3 Qe8 Rc1 Rb3 Bg1 Rb6 Rc3 Rb2 Rb3 Rb1 Rbb5 Rb4 Rbb6 Nb5 Bge4 Bd7 Bd5 Bf5 Bg2 Ng8+
1R5Q/1P1B1nr1/1qpB4/Pr2pN1b/K6n/1n5R/B2NN2r/2kbQBbN b - - 0 1 illegal: No proof kernel
k3n2R/1r1B1K2/Bq3b2/1n1n2R1/R1N4q/4PpQ1/1NRp1Pb1/rB1Q1B1b b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 g5 h4 Bg7 hxg5 Bh6 Be3 Bf8 Bd4 exd4 b4 h5 Kd2 f5 Kd3 a5 Kc4 h4 g4 h3 Kd5 h2 c4 d3 e3 d2 g6 a4 g7 d6 g5 Kd7 b6 a3 c6+ Ke8 c7 Kd7 c5 f4 b7 f3 b5 a2 b6 Nh6 g8B Nf7 g6 Rh7 g7 Be7 Qc2 d1N c6+ Ke8 Nh3 Na6 b8R Bd7 Nf4 Bh3 c8B Bg2 Ke6 d5 c7 d4 b7 Nb4 Nd3 Nd6 Nd2 Bh4 Be2 Nc3 Rhc1 h1B Qd1 Qg5 Rc2 Qg3 Qg1 Bf6 Qd1 Qh4 Bf1 Ra7 Ra8 Ra5 b8Q Ra7 Nc5 d3 Na4 Ra5 Nc4 d2 Ba6+ Bd8 c8B Bf6 Bf7+ Kd8 Bg6 Nbd5 g8R+ Ne8 Be4 Rb7 Rg5 Nd6 Rac1 a1Q Ra2 Qb2 Bb1 Qb6 Rcc2 Ncb5 Nab2 Bg7 Ra4 Bf6 Rb4 Ra1 Ra4 Rh7 Qb7 Rg7 Qc6 Rb7 Qe8+ Kc7 Bd7 Ra7 Qe7 Rb7 Rh8 Ne8+ Kf7 Kb8 Qe5+ Ka8 Qg3
bB1K2Q1/1Q6/1r2qn1b/1q5q/P1B2Q1N/1Q1nPR1p/N3NpN1/R2k1rn1 b - - 0 1 illegal: No possible last move
N1K2R2/BRR1Nb1n/2rQ2qn/4QrR1/pPp4q/4q1b1/kQ1bBPQ1/8 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 c5 Ke4 h5 Ke5 a5 g4 h3 b4 h4 d4 a4 b6 h2 b7 e6 f6 c4 g5 h3 d6 Rh5 d5 Qd7 Qd4 Bg7 Nf3 Bh6 Nc3 Ra5 Be3 Qc6 d7 Bg7 d8R Rc5 Nh4 Nh6 Nf5 Qe8 Kd6 e5 Rg1 h1Q Re1 h2 Be2 e4 Nb5 Qg2 Qb2 h1Q Ne7 Be6 Rc8 Nd7 b8Q Qh4 Nc7 Nf8 Na8 Nh7 Rc7 Qgh3 Bd4 e3 Rb7 Rc8 Ba7 Qg8 Rc7 Bf8 Kc6 Qg6 d6 Bd5+ Kb6 Ke6 d7 Kd6 Rg4 Bf7 Kb7 Bg7 d8Q+ Ke6 Rd7 Rc6 Rc7 Bf8 Reg1 Q3g3 Rd4 Ke5 Kc8 Qf3 Rd7+ Ke4 Ng8 Bd6 Ne7 Bg3 Qb5 Qg7 g6 Rf5 Qc5 Qg8 g7 Qff4 Bh5 e2 Qf8 e1B Be2 Qd2 Qe8 Qdf4 Qd6 Qe3 Rg2 Bd2 Rg1 Qh8 g8Q Qg7 Rg2 Qg6 Qg7 Be6 f7 Bd5 Qeg8 Be6 f8R Bd5 Bg4 Kd3 Qbe5 Kc2 Be2 Kb3 Rg1 Bf4 Rg5 Bf7 Q8h8 Ka2 Qhg8 Be8 Qgd5 Bf7 Qg2 Rb6 Rb7 Rc6+ Rdc7 Bh2 Qed4 Bf4 Qge5 Bg3 Qb2#
2N1k2n/Br2B2K/b1R3Bn/2qq1PRQ/1N2Pb2/3p1r1p/1r3B2/bN1N3Q b - - 0 1 illegal: No possible last move
Q1Q1b3/5q2/1qQn1r2/pR4Np/3P1b2/rb1N3R/PnqNNQ2/1kB2B1K b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 b4 d5 cxd5 Nc6 bxc5 Nb8 h4 gxh4 d4 Kf7 g4 Kf6 f4 h5 Kf2 e5 Kg2 b5 d6 b4 c6 h3+ Kh2 e4 c7 e3 d7 b3 Na3 b2 Nb5 b1Q Qe1 e2 Qf2 e1Q Nf3 Bd6 Nc3 Nc6 Ne2 Qc2 Rb1 Nge7 Nd2 Ne5 Rb5 Rh6 Kg1 Qf8 d8N Nc4 Ne6 Bd7 c8Q Nb2 Qc6 Qf7 Nc5 Be8 Nd3 h2+ Kg2 Nc8 g5+ Ke7 f6+ Ke6 g6 a6 Nc5+ Kf5 g7 Bc7 g8Q Nd6 Qf8 Qed1 Nd3+ Qc5 Qe7 Qc2 Qd8 Ra7 Qda8 Bb8 Rg1 h1B+ Kh2 Bg2 Rh1 Bd5 Kg1 Bc7 Rh3 Bb3 Kh1 Rg6 Rb7 Qb6 Qc8+ Qd7 f7 Rf6 f8N Bb8 Ne6 Qf7 Re7 a5 Rd7 Rc7 Rd8 Re7 Ng5+ Ree6 Rd7 Re3 Rb7+ Be6 Ne5 Ra3 Nd3 Bc7 Qa8 Bb3 Rb8 Qa6 Rb4 Qb6 Rb5+ Qcc5 Nb4 Re6 Kg1 Qg6 Qh1 Nb7 Kh2 Be5 Nh7 Nd6 Qhc6 Qc4 Kh1 Qd5+ Nf3 Ke4 f5 Bf4 f6 Qf5 f7 Rf6 Qc5 Bc6 f8Q Qf7 Qfc8 Q5g6 Na6 Kd3 Ng5 Be8 Q5c6 Qe4 Nc5+ Kc2 Kg2 Kb1 Kh1 Qc2 Nd3 Qd2 Nh4 Qc3 Nhf3 Qc2 Nd2+
Nn1q2q1/2B2NN1/R2Q1pn1/pbkr2R1/Q3rPN1/4PBRq/3Rb1n1/K7 b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Bd6 cxb5 Na6 a4 Be7 h4 Bc5 a5 Bb6 axb6 gxh4 Qd3 Nb8 Qd5 Ne7 Qd1 Ng8 Kd2 Ke7 Kc3 h5 Kb2 d5 g4 c5 b7 h3 g5 f6 e6 Kd6 b6 a6 b5 h2 e7 d4 e8N+ Kd5 g6 c4 g7 d3 Na3 d2 Nf3 h4 Qa4 d1B Ng5 h3 Bf4 Nc6 b8R Qe7 e3 Bd7 b7 Bf3 b6 Rh5 Nb5 Kc5 Be2 Qd8 Rhg1 h1Q Rg3 h2 Bc7 Nge7 g8N Ng6 Nh6 Qg1 Ng4 h1Q Ng7 Qh3 Nf7 Rd5 Bd1 Be2 f4 c3+ Ka2 Qe7 Rd8 c2 b8R c1N+ Kb2 Qgg2 b7 Nd3+ Ka2 Ne1 Rg8 Nge5 Rbd8 Ng6 b8Q Qg1 Kb2 Ng2 Ra3 Be8 Ka1 Ra7 Rd6 Qd8 Rd3 a5 Rd2 Nd4 Ra6 Nc6 Be5 Re7 Nc7 Bd7 Na8 Re8 Bc7 Re4 Qbb3 Nb8 Qd3 Bf1 Bf3 Be2+ Qb1 Bdb5 Qbd1 Bf1 Rh8 Bfe2 Rh5 Qgh2 Re5 Qh7 Rg5 Q2h3 Qb1 Qhg8 Qd3 Rde5 Qd7 Rd5 Qd6+
2Q1Rr1B/n2K1nbk/qq2prR1/5Q2/n3Q1RR/2NPP3/1NQp3r/1b2B3 b - - 0 1 illegal: No possible last move, all moves rejected
1N1b2q1/KB3bBB/2N1p3/3qR2Q/1P2QR1b/2r3p1/n2P2Bq/1QrQnk2 b - - 0 1 illegal: No proof kernel
2BNRk2/6nb/q1Rp1KQ1/rr1N1PB1/PNq1bb2/3p4/4R2r/R2n2NQ b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Ke2 g5 Kd3 b5 Ke4 e5 f4 d3 h4 b4 a4 g4 c4 g3 c5 g2 a6 d6 f6 b3 f7+ Ke7 c6 b2 a7 Qd7 c7 Qb5 h6 Bb7+ Kf5 Na6 c8R Qc4 h5 e4 h7 e3 h6 e2 Na3 e1Q Nc2 b1B Nb4 Nc5 Rh2 Ba2 Rc6 Ne6 Qh5 Nf6 Qg6 Ng4 Bd2 Rb8 a8N Nf2 Nb6 Nd1 Be3 Bg7 f8R Be5 Be2 Bb3 Bg4 Ng7+ Kg5 Qec3 Bc8 Qa6 f5 Ra8 Rd8 Bg8 Bd2 Qcc4 Bf4 Bf7 Bc1 Be8 N6d5+ Kf8 Bd2 Bf4+ Kf6 Qab5 Be3 Ra5 Bc1 Qa6 Be3 Rg8 h8N Ba8 Nf7 Rh8 h7 Bb7 Nh3 g1R Re2 Rg2 Ng1 Rh2 Rd7 Rg8 h8Q Ba8 Nd8 Rb5 Qg3 Bg6 Re7 Ra5 Qhh3 Bh7 Qg6 Rh8 Re1 Rb2 Re2 Rb3 Qh1 Rb2 Nc2 Rbb5 Ncb4 Bg8 Nc3 Bg3 Rc5 Be4 Bg5 Rh2 Rc6 Bh7 Ncd5 Bf4 Re8+
3B2Q1/kq5n/1P2R1bQ/2b3RR/3b1R1P/B1p3Kp/r1rN1BN1/qB2q1n1 b - - 0 1 illegal: No possible last move, all moves rejected
Bq2qRbK/2n5/1PNnN3/2Q1Qp2/2bB1BQb/r7/P3BprQ/Rr3k2 b - - 0 1 illegal: No proof kernel
1b2b1K1/4kn2/1P1q1Np1/q3B2B/NNN1QP1n/1p1b1r1r/2RR3B/1Q2B1r1 b - - 0 1 illegal: No proof kernel
1Q1q4/2q1rbn1/1PBp1QNB/bR1PB1R1/1QK2Bq1/3rQ3/1k2np2/Nb6 b - - 0 1 illegal: No possible last move
bKRBqQB1/2B5/1pQpB1Pb/4q2n/NnR4q/3RP1R1/4k3/r1r2N1r b - - 0 1 illegal: No proof kernel
4nq2/R1b1bQ1b/p1n4B/2n2N2/1pKP2Bq/B2Qrr1Q/3B1Pk1/1Q2R1N1 b - - 0 1 illegal: No possible last move
3q3k/1q3QRp/Nbrn2R1/3p2nP/2r1RQ1N/Q2K2b1/2Q3BP/1q2BRr1 b - - 0 1 legal: proof: e4 c5 g4 b5 a4 f5 axb5 Bb7 d4 cxd4 exf5 Bd5 Qe2 Bf7 Qd1 Bh5 gxh5 Qb6 Ne2 Qc7 Ng1 Qd8 Ke2 Kf7 c4 e5 f4 g5 b4 Kg7 f6+ Kh6 f7 Kg7 c5 d5 b6 a5 b5 a4 f5 a3 c6 g4 c7 e4 c8R e3 b7 g3 b6 g2 Kd3 e2 Nd2 e1R Rc7 a2 Ne4 Bd6 Nc5 Nc6 b8Q Bg3 b7 Nh6 Bd2 Ra6 Nf3 g1B Qc2 Na5 Nh4 Nc4 Bg2 Rc6 Na6 Nd6 f8R+ Nhf7 Qa7 Rc1 b8Q Rg8 f6+ Kh8 Be1 Ng5 f7 B1f2 Rb1 a1Q Rb4 Qb2 Rg1 Rc4 Ra4 Qb7 Rf1 Bg1 Re8 Be3 f8Q Bef2 Rg7 Rc6 Qa2 R1c4 Re6 Be3 Qf7 Bg1 Kd2 d3 Reg6 Bd4 Qc2 Bb6 Kd1 d2 Ke2 R6c5 Kd3 d1Q+ Ke3 Qb1 Kd3 Rc6 Qbc7 Be3 Qc5 Bd4 Qa3 Bb6 Qf4 Re8 Qcf7 Re2 Be4 Rg2 Rb4 Rg1 Bg2 R4c5 Rd4 Rc4 Re4
1QrN3b/B1nP1K2/6pp/3N2R1/2Qkn1qQ/2b1NR1B/2Q4P/1qnN1rb1 b - - 0 1 illegal: No possible last move
qbB4k/1N1p1K2/1q1Brp2/2BrP2R/QRQb1P2/6NR/3BR2b/2nrn3 b - - 0 1 illegal: No possible last move, all moves rejected
Br2b2B/K2pn3/pQqBQ2P/2br1P2/3q4/3QNRb1/n1Q3k1/rB1R3N b - - 0 1 illegal: No possible last move
2r3Q1/1RnpRQKp/q3b2Q/2b1rbBB/2Q1n3/1RPk1N2/nR1P4/q2N4 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 f5 axb5 Nh6 exf5 Ng8 h4 gxh4 Ke2 Kf7 Kd3 Kf6 Kd4 a5 g4 a4 f4 e6 g5+ Kg7 Ke5 a3 c6 a2 g6 h3 b6 h2 c7 Ra7 b7 Bc5 f6+ Kh6 g7 Kg6 f7 Qe8 f8Q Ra8 f5+ Kg5 f6 Qg6 f7 Na6 b8R Nf6 g8Q Bb7 c8R Bd5 Ba3 Nc7 Qc1 Ne4 Re8 Ra5 Nc3 Rb5 Rb1 a1Q Rb7 Kg4 Nh3 Kf3 Qh6 Ra5 Rg1 h1B Ng5+ Kf2 f8Q+ Bf3 Qe7 Bg4 Qf6+ Bf5 R1b2 Ba2 Bg2 Rb5 Nd1+ Ke2 c3 Kd3 Re7 Ra5 Qfg7 Bb3 Q8f7 Rc8 Bf3 Rb5 Qgg8 Bd5 Bh5 Qf6+ Kf4 e5+ Kf3 Qa6 Rh1 Bg6 Kg4 Be6+ Kh4 Bgf5 Nf3 Ng5 Rg1 e4 Rg4 e3 Rgb4 e2 R4b3 e1N Qb1+ Ke2 Qa2 Kd3 Bb4 Ne4 Ba3 Nf2 Kg5 Nc2 Kf6 Ne4+ Kg7 Ra5 Bb4 Rb5 Ba5 Nb4 Qa4 Na2 Bb6 Bb4 Be3 Re5 Bg5 Bc5 Qc4+
2N1Q3/2pR4/prnn1K2/qkb1Pb1B/B2BR3/4B1Pq/1QNR2R1/2r1n1q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 b4 h5 e4 h4 d4 h3 e5 a6 g3 h2 b6 Nh6 b7 Qf6 d6 Kc6 g6 Qg7 b5+ Kb6 d5 Ng4 d7 Bd6 d8R Be7 d6 Nh6 d7 Ba3 Nc3 Ng4 Qe2 Nf6 Ra2 Bf8 Nd5+ Kc5 b6 Rh7 Ne7 Qg8 g7 Qe6 g8B Ne8 Rb2 Qd6 Bb3 Qd2 Qg2 Rh3 Ne2 Qa5 Nd4 Rh6 Bd2 Rc6 Be2 Ra7 Re1 h1Q Bed1 Qg1 Re4 Ra8 Bc1 Kb4 Be3 Rc1 Qc2 Ra7 Qb1 Kc5 Rh2 Kb4 Nc2+ Kb5 Qb2 Ra8 Rh1 Nc6 b8Q Ra7 Rh2 Rb7 Ng6 Be7 Qa8 Rb8 b7 Bc5 Ne7 Ng7 Rg8 Ne8 d8R Be6 Rdd2 Nd6 Rd8 Bd7 Ra4 Bc8 Rhg2 Be6 Ke2 f3+ Kd3 f2 Bh5 f1N Rd7 Nh2 Rg4 Nf3 Bd4 Qd1 Ke3 Qe1+ Kf4 Qg1 Be3 Ne1 Kg5 Qf1 Re4 Qg1 Kf6 f4 Rgf2 Bf5 Rh2 Qh1 Rhg2 Qh3 Bd4 f3 Be3 f2 Bd4 f1Q Be3 Rd8 b8B Bd4 Ba7 Rb8 Bc5 Rb6 Qe8 Qg1 Nc8 Bc3 Bcd4 Bb4 Bg6 Ba3 Bh5 Bc5 Ba4+
rrQR2nn/1P1B2Q1/1K2N1rQ/4bk2/1ppNR2q/BQ1PR1R1/2b1n1q1/8 b - - 0 1 illegal: No proof kernel
NR2B1r1/1P3bqn/2qp2nb/Q3q2r/2RNP2B/R4nBR/4KBp1/1k3Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 b4 Ke7 h4 Ke6 c4 Kf5 e4+ Ke6 h6 a5 b6 f5 b5 g5 h5 f4 h7 d6 b7 f3 h6 d3 c5 a4 b6 a3 c6 g4 c7 g3 Bg5 g2 Rh3 a2 Bh4 Qe7 Nc3 Qg7 Nd5 Ne7 Ne2 Nd7 b8R Ng6 b7 Nf6 Nb6 f2+ Kd2 Ra5 Na8 Rg8 h8B Nh7 Qc1 Bd7 c8R Be8 Rc4 Bf7 Qc3 Rb5 Qa5 Rc5 Ke3 d2 Bg3 d1Q Nd4+ Kd7 Be2 Qc2 Bh5 f1N+ Kf3 Qa4 Ke2 Nh2 e6+ Ke7 Bf2 Kf6 e7 Qc6 e8Q Nf3 Qd7 Ke5 Qc8 Be7 Qf8 Bg5 Bh4 Bc1 Bf2 Kf4 Bh4 Rg5 Bf2 Qe5 Bf6 Rf5 B6h4 Rg5 Bg4 Rh5 Bd7 Bd2 Be8 Bc1 Rb1 a1Q Rb3 Qc3 Ra3 Qg7 Kd1 Bd2 Bfg3+ Ke3 Bf2+ Kd3 Bfg3 Nf6 h7 Bh6 h8B Nh7 Bf2 Qe5 Bfg3 Nd2 Ke1 Nf3+ Kf2 Kd2 Bg7 Kc1 Ke2 Kb1 Bf2 Qe6 Be5 Qf6 Beg3 Qg7 Ne6 Qce5 Nd4 Be6 Qf4 Bf7 Be1 Nfg5 Qf1 Nf3 Bef2+
4Rn2/1pK1R1n1/NB5R/p1NP4/PQq1brb1/1r2Bkb1/1Rn5/1B1BqQ2 b - - 0 1 illegal: No possible last move
1NQ2n2/p1q1r2R/3q2Pp/3B4/bkP1Nqr1/2b1n2R/1Qb1N2Q/1N3QBK b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 d5 g4 Kd7 b4 Kd6 f4 e5 Kf2 e4 Kg2 d3 g6 e3 b6 d4 g5 d2 b7 d3 f6 e2 b5 Kc5 f5 e1Q f7 Qd6 b6 Qe3 g7 Qee6 f6 Qdd7 g6 Ne7 g8N Qe3 Qe2 d1B Ra3 Nd5 Qb2 d2 Ne2 Qf4 Rah3 Bg7 f8Q+ Qe7 f7 Bd7 Kg1 Bc3 Bg2 B7a4 Qc8+ Qec7 Nf6 Nd7 b8N Nf8 b7 Ne3 Bd5 Bdb3 Ne4+ Kb4 N4g3 d1Q+ Kh2 Ng2 Be3 Qdd4 Bf2 Ne3 Kg1 Qdc5 Ne4 Q5d6 R1h2 Be1 Kh1 Bc3 Bg1 h6 Rf2 Rh7 Rff3 Ne6 f8Q Re7 Qf5 Nf8 Rf2 Qg5 Qf4 Qge5 Qh2 Qf4 Qc1 Bc2 Qf1 Qfe5 Rf7 Qf4 Nd7 Rb8 Rh7 Ra8 Qe8 Rd8 b8Q+ Qdb6 Qc8 Qbd6 Nb8 Rdd7 Nf6 Re4 Qe5 Re7 Qd4 Qh4 Qd2 Rg4 Ne4 Qf2 Qdc1 Qff4 Qb2+
2b1NQ1R/1b1R3r/1p1r1bBb/PR1P1B2/1QK1N2n/2B3pk/2b4B/2R1n1q1 b - - 0 1 illegal: No possible last move, all moves rejected
3rn3/1r2bpbR/B6b/R1Qn1KP1/B1NbQ3/q5k1/bpPB1N2/B3RR2 b - - 0 1 illegal: No proof kernel
KR3n2/2BbNr1Q/1N1Q1r2/1BQ1N3/4P3/RqNb1p1P/p2bQ3/2n1kbn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 b4 f5+ Kd3 Kd5 h6 a5 h3 f4 b6 g4 b5 a4 h7 g3 e6 a3 c3 g2 e7 Bh6 e8Q Nc6 b7 Ra7 b8N Nge7 b6 Ng6 b7 Rf8 h8Q Na5 Qc2 Rf6 Nf3 g1N Qh7 Nf8 Ne5 f3 Nbc6 Bd2 b8Q Nb3 c4+ Kc5 Ke4 d3 e3 Qb6 Ne7 Kb4 Kd5 d6 e4 Bd7 c5 Rc7 Bb2 Nc1 c6 Rb7 c7 a2 c8N Qe3 Qc5+ Kb3 Nc3 Kc2 Rb1 Rc7 Ne2+ Kd1 Nb6 Ke1 Nc3 Rb7 Qeg6 Rc7 Qg2 Ra7 Kc4 d5+ Kb4 d4 Qbd6 Rb7 Ka5 Rg6 Ka6 Bc6 Qd7 Ne2 Nec4 Rf6 Ncd5 Bb4 Rh2 d2 Nf5 d1B Na4 d3 Be5 d2 Rb3 Rb8 Ka7 Rf7 Nfe7 Rb6 Bc7 Bc2 Ne5 d1B Ra3 Ng1 Bd3 Bb5 Ka8 Rbf6 Qdd6 Bd7 Bf1 Bb1 Qb2 Ba5 Qbb5 Bb4 Rb2 Bd2 Qd3 Bbc2 Rb8 Be2 Ndb6 Bb1 Qa6 Qb3 Nc3 Beb5 Bc4 Bc2 Bd5 Bc4 Bc6 Bf1 Qac4 Bb1 Bb5 Bc2 Qce6 Bb1 Qg4 Bc2 Qg2 Bcd3 Qe2+
KR2Nb2/6n1/4BR2/1QN4r/PrnknRR1/2N4p/npb1Qq1P/3bBN2 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 f4 g5 fxg5 Nh6 cxb5 Ng8 b4 axb4 Kf2 Ke7 Ke3 Ke6 Kd4 d5 g4 f5 e4 h5 a4 f4 g6 h4 b6 b3 b7 b2 g5 c6 g7 f3 g6 f2 Bh3+ Ke7 Kc5 f1N e6 Kf6+ e7 Ke5 Be6 d4 Nd2 h3 Qe2 Nf6 g8N d3 g7 Ne8 Nf6 Ra7 g8R Ne3 Rg4 Nc4 Nf1 Ng7 Bd2 Rh5 Be1 d2 Ra3 d1B Rf3 Qd2 Rff4 Ne3 Kb6 c5 e8R c4 Nd7+ Kd4 Nc5 Na6 b8Q c3 Kc6 c2 Qbb5 c1N e5+ Kc3 Kb6 Na2 Rd8 Bb7 Rb8 Be4 Rf6 Bd3 Rgf4 Ra8 Kb7 B3c2 Rg4 Nc4 Rgf4 N6b4 Rg4 Ra6 Rgf4 Rb6+ Ka8 Na6 Qe4 Na3 Nb3 Rd6 Bg8 Nc5 e6 Rf5 e7 Rh5 e8N Rd3 Be6 Nc4 Qg2 Ne4 Nc5 Kd4 Ne2+ Ke5 Rg1 Rb3 Qf2 Rb4 Nc3 Qd4 Qe2 Qf2 Rg2 Kd4 Rgg4
b5Rb/2Q2KnN/1rB2BN1/1n1nN1p1/Qk2P3/1r1QP1N1/4pbRb/2Qq4 b - - 0 1 illegal: No proof kernel
4N1nr/RK4b1/1Q2R1b1/pk2nQ1P/n4q1b/Q3Qp2/PB1B2N1/Rb1R2r1 b - - 0 1 legal: proof: e4 d5 exd5 c5 f4 g5 b4 Qa5 bxc5 Qd8 g4 h5 Be2 Nc6 fxg5 Bg7 g6 Bf8 g5 Nb8 Bg4 hxg4 Kf2 Kd7 Ke3 b5 Ke4 e5 c4 a5 h4 f6 d4 g3 c6+ Kd6 g7 b4 h5 b3 c7 b2 g6 g2 c5+ Kd7 c6+ Kd6 Qe2 Ra7 Nd2 Ne7 g8R Ba6 c8Q Nd7 g7 Rh7 c7 Nb6 Qf5 Nc4 c8R Qe8 Rc7 Nc6 Ngf3 g1B Ne1 Qf7 Ng2 Nb6 Qe3 Bf2 Rd1 Na4 Rb7 Ra8 Ra7 Ne7 Rh8 Be2 g8Q Bg7 Qf8 Bh4 Rg8 Rb8 Rh8 Rb7 Nc4+ Kc7 d6+ Kc6 d5+ Kb5 d7 Ng8 d8B b1B+ Qd3 Qc7 d6 Qb8 Kd5 e4 d7 e3 Bb2 Qf4 Qd2 Bed3 Qa3 e2 Qe3 e1N Bc7 Bdc2 d8Q Nd3 Bce5 Rh6 Bec3 Ne5 Bd2 Rb8 Kd6 Rg6 Kc7 Ra8 Kb7 Rg4 Qe6 Bg6 Rh6 f5 Qb8 Qg5 Qf6 f4 Qf5 f3 Qd8 Qf4 Qdd6 Bf7 Re6 Rg3 Nb6 Bg6 Nd7 Rd8 Nf6 Rf8 Ne8 Rg4 Ne1 Rg1 Qc7 Ne7 Qd8 Rh8 Ng2 Ng8 Qdb6+
B1kBb3/3n1R1N/3qrRr1/p1B3bP/B1NpQ1NP/4n2r/6r1/1KQ1n2N b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 d5 h4 Kd7 f4 e5 b4 a5 c4 g5 Kc2 g4 c5 g3 f6 g2 f7 e4 b6 e3 c6+ Ke7 b5 e2 c7 Kd7 f5 e1R f6 Bb4 f8N+ Kd6 b7 Re7 b6 Re5 f7 Re3 Nd2 d3+ Kb1 d4 Ne2 g1R Nh7 Kd7 f8B Ra6 Bc5 Rg6 Nc4 d2 Bg2 Qf8 Ng3 Qf4 Rf1 Qd6 Rf7+ Ne7 Nh1 Rd3 Qc2 d1N Bg5 Nb2 Qc1 Bd2 Bf6 Nc6 b8Q Ne5 b7 Rhg8 Qa8 Bg5 Ra3 Rg3 Rf3 Nbd3 Rf2 Rh3 b8N+ Ke6 Rf4 Nd5 Nc6 Nd7 Bd8 Ne3 N6e5 Ne1 Qe4 Bb7 c8B Bc6 Bb7 Nf6 Rg7 Rf8 Qd2 Qc7 Qed3 Be8 Ng4 Qe7 Q2c3 Kd7 Bbc6+ Kc8 Qc1 Nd7 Ba4 Rae6 Ba8 Qd6 Qe4 Rf7 Rf1 Rf2 Rf7 Rg2 R1f6
N2nbrbR/NnB5/B1r3p1/k1bpP1Q1/2qQ4/1Q3N2/P1Rn4/1NK3Qb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 b5 c4 d5 h4 Kd7 e4 Kc7 h6 f5 h7 b3 e6 b4 c6 Kb6 e7 b2 e8N b3 h5 g6 h6 f4 c5+ Ka5 c7 f3 c6 f2 Nf3 Qh4 Ba6 Bc5 Qg1 Be6 c8N f1B c7 Nc6 Na7 Nge7 c8Q Bg8 Qh3 Nc8 Nc7 Bb5 Qhg2 Rb8 Na8 Rb6 Qg5 Nd6 Kd1 Qg4 Bf4 Nb7 Bc7 Ncd8 Rh2 Qf4 Rc2 Be8 e5 Qc4 Qd4 Bgf7 Qgg1 Rg8 h8Q Rf8 h7 Be6 Qf6 Bg8 Nc3 b1N h8Q b2 Qh3 Nd2 Qfg5 b1B Kc1 Nc6 Qhf1 Ncd8 Qfd3 Qb3 Q3c4 Qb5 Qb3 Qc4 Rb2 Bf5 Rc2 Bg4 Rb1 Bh3 Rbb2 Bg2 Nb1 Bh1 Rc3 Ne4 Rh2 Nd2 Rc2 Ba4 Bb8 Be8 Rh8 Rc6 Bc7+
2NK2n1/3b1BQR/3bp1q1/1p2bR2/rP1N4/kNR1bRP1/1r2Qr1N/B1n5 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 c4 gxh4 cxd5 f5 exf5 Qd6 a5 Qb6 axb6 Ba6 Nc3 Bb7 Nb1 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 f4 c5 f6 a5 f5 a4 b7 a3 d6 c4 g3 a2 d5 h3 f7 h4 d7 c3 Ke6 h2 d6 h3 f6 c2 Nf3 Nc6 b8N Bh6 f8R Ra5 f7 Bg5 Bc4 Nf6 Nbd2 Ra7 Qe2 Ng8 Nb3 Ne5 Nc6+ Ka4 Ncd4 Nd3 Bf4 c1B Be5 Bcd2 Rac1 a1B Rc3 Bdf4 Rf1 h1Q Nh2 Ra5 Rf3 Qb1 Bg7 Nc1 Bd5 Ba6 d8N Qg6+ Kd7 Bc8+ Kc7 Rh5 Nb7 Bd7 Kd8 Be3 Be5 Bgf4 Be6 Rf5 Bd5 Bc6 d7 Kb4 Be6 Ra4 Nd6 Rf6 Nc8 Rf5 Ng4 h2 Bh8 h1R Nh2 Bd6 Bf6 Nh6 Rh8 Rf1 f8Q Ng8 Qg7 Rf2 Bf7 e6 Rh7 Rd5 Nd2 Re5 b3 Ka3 b4+ Kb2 N2b3+ Ka3 Qd1 Rb2 Qe2 Rf5 Ke8 Be4 d8R Bc6+ Rd7 Rf4 Kd8 Rf5 Rc7 Bd7 R7c5 Rf4 Rf1 Rf2 Rf5 Rg2 R1f3 Rf2 Be5 Bf4 Rce3 Ra2 Nc6 Bd4 Rd3 Bde3 Ba1 Rb2 Rc3 Bfe5 Ncd4
3b1k1r/nN5r/R2p1nqN/4BQQB/3r2nN/B3pR2/Pn3P1B/1K2N2b b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 b5 c4 e5 Kc2 g5 h4 e4 h6 e3 f6 g4 h7 g3 f7+ Ke7 c6 g2 c5 Ra6 h5 Bh6 f8B+ Kf7 c7 Re6 c6 Na6 Nf3 g1N Nbd2 b3+ Kb1 b4 Bd6 b2 Bh2 Qe8 Nh4 Nc5 Be2 Nd3 Ndf3 Re4 Ne1 Bb7 c8N Rd4 c7 Nf3 Nd6+ Kf8 c8Q Bg5 h6 Nfe5 Bh5 Bd8 Qg4 Qg6 Qg5 Ng4 Qc2 Bf3 Nb7 d6 Qcc5 Bc6 Qcf5+ N8f6 Rg1 Bh1 Rg3 Rg8 Rf3 Rh8 Kc2 b1R Ba3 Rb3 Rc1 Nb2 Kb1 Rc3 Rc2 Rc7 Rc6 b3 Rb6 Rg8 h8N Rh7 Nf7 Rgh8 Neg2 Nc4 Ne1 b2 Kc2 b1N Ra6 Nb2 Kc1 Rg7 h7 Nc3 Nh6 Nb5 Kc2 Na7 Kb1 Rhg8 h8B Rh7 Nf7 Ne4 B8e5 Nef6 Nh6 Rgh8 Bef4 Rd5 Bfg3 Rd4 Be5
4nNQ1/B2KQ1Q1/2P2QB1/Rr1b1nbp/1kR1NBp1/1r4P1/2b1B3/n3q2b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 g4 d4 cxd4 Be2 Qc7 Bd3 Qf4 Bf1 Qg5 hxg5 Bh6 Qd2 Bg7 Qd1 Bf8 Kd2 d5 Kd3 Kd7 c4 Kd6 f4 Kc5 b4+ Kd6 f6 a5 g3 e5 c5+ Ke6 g6 h5 g7 a4 b6 a3 c6 Kd6 b7 a2 f7 Ra5 f5 Rb5 f6 Be6 Be2 Nd7 Bf4 Ra5 b5 Kc5 b8B Bd6 f8Q Rh6 f7 Ne7 g8B Kb4 b6 Nf5 b7 Rh7 Qf1 Be7 Nc3 Rb5 Nf3 Nf6 Ng5 Ne8 Nce4 Rh8 Rc1 a1N Rc5 Bd8 Nh7 Bg5 Nhf6 Rh7 Qe7 Rh8 f8Q Bf7 Kd2 d3 Qg7 d4 Nd7 Bd5 Ba7 Rh7 b8Q Rh8 Nf2 e4 Bh7 Rf8 Bg6 e3+ Ke1 Rh8 Ne4 d2+ Kd1 Rf8 Rg1 Rf6 Nf8 Rd6 Qc8 Rd8 Qce6 Rdb8 Qeg8 R8b7 Bd3 Rb8 Ke2 R8b7 Bc4 d1B+ Kd3 e2 Rg2 e1Q Ra2 Bf3 Ra5 Rc7 Bb3 Bg2 Bd1 Bh1 Be2 Rcb7 Bc1 Nh6 Qff6 Nf5 Bf4 Nb3 Kc2 d3+ Kb2 d2 Kc2 d1B+ Kd3 Nh6 Ke3 Na1 Kd4 Bc2 Ke5 Nc7 Kd6 Nf5+ Kd7 Rb8 Ra6 Ne8 Qef7 Ra5 Q7e7 Ra3 Raa5 Rb3 Bd3 Rb6 Be2 Rb5 Rc4+
b2Q2R1/nN2n2R/n1p1B2p/1P2n1N1/2Nr2qB/1K2N1Rr/1b2PRQ1/3kb3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Kd7 Kd2 Kd6 Kc2 a5 b4 f5 g4 c6 g6 a4 g7 a3 b6 a2 g5 f3 b7 f4 g6 f2 b5 f3 Nh3 Qd7 Bg5 Qg4 Nc3 Ra4 Bh4 Ne7 g8R Na6 b8N Bb7 g7 Ba8 Ng5 Nc8 Nd7 Na7 Bh3 f1N Kb3 f2 Ne5 Ng3 Qg1 f1N Nd1 Ne3 Qg2 Nc4 Ne3 Nf5 Raf1 a1B Rf2 Bb2 Rh2 Ne7 Rh1 Kc7 d6+ Kb6 d5 Kc5 d7 Kd4 d8N Rb4+ Kc2 Ra4 d6 Rb4 d7 Ra4 Ng6 Ne5 Nb7 Rc4+ Kb3 Rb4+ Ka2 Kc3 d8Q Rd4 Rh2 Kd2 Kb3 Qe4 Be6 Qg4 Nf4 Ke1 Nc4 Kd1 Nd5 Nf5 Ka4 Bb4 Kb3 Be1 Rh3 Ne7 Rg3 h6 Re8 Rf8 g8R Rf6 Rg7 Rf7 Reg8 Rf6 Rh7 Rf8 Re3 Rf3 Rc3 Rh3 Rd3+ Kc1 Rg3 Kd1 Nde3+
BB2Q2r/3q2kn/P1Bpb1Nn/3r1R2/4R3/Nbbbp1KB/Q1R4P/3r1R2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 f4 Kf7 Kf2 b5 c4 e5 a4 g5 c6 e4 a5 g4 c5 b3 f6 b4 a6 b2 c7 b3 c6 Bh6 f5 Be3+ Kg3 Nh6 Qc2 Rg8 Na3 b1B Qa2 Bb7 c8B Rg6 c7 Ba7 Ne2 Bd4 Bg2 Bd5 Bb7 b2 c8B Qa5 Nf4 Qd8 Rf1 Rg5 Bc6 Be6 Ng6 Bc3 Bf4 Bc2 Rac1 Bcb3 Rc2 b1B Bf3 Kg8 f7+ Kg7 f8R e3 Re8 Qe7 Bc7 d6 Bh1 Nd7 Bb8 Nf8 f6+ Kf7 Bhd5 Qd7 Re7+ Kg8 f7+ Kg7 Bg2 Nh7 f8R+ Bf7 Bh3 Rd5 Re4 Bg8 B8b7 Be6 Kg2 g3 R8f5 Bd2 Kf3 g2 Kf4 Bc3 Kg3 Ra7 Ba8 Rc7 Rcf2 Bd3 Rc2 Rc8 Kf4 Ng4 Kg3 Rh8 h6+ Kg8 Ra1 g1R+ Rg2 Nf8 h7+ Kg7 Nh4 Rg8 Rc1 Rh1 Rcc2 Rd1 Rg1 Kh6 h8Q+ Nh7 Rgf1 Rd8 Qe8 Kg7 Qh5 Rh8 Qe8 Nh6 Ng6
2qQ1R1n/kbB4P/7K/4br2/nQB4n/p1QnR1b1/3pP1r1/NNQ1B2B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kf3 d5 Kf4 Kd7 h4 Kc7 b4 Kb7 c4 a5 b6 d3 c5 d2 e6 a4 e7 a3 Kg5 d4 h6 g6 h7 f4 b5 f3 h5 f2 h6 d3 Bg2+ Nc6 Nf3 f1N Rh3 Ne5 Bh1 Ne3 Ne1+ Ng2 Nc2 Bg7 Re3 Ra5 c6+ Kb8 b7 Ka7 c7 Nh4 Qe1 d1N Bd2 Nc3 Qc1 Na4 Be1 Qf8 e8B d2 Bf7 Nd3 Ba2 Ne7 Bc4 Rg8 h8Q Be5 h7 Qf5+ Kh6 g5 Qf6 Neg6 Qd8 g4 b8B+ Kb6 Bg2 g3 Bh1 Bb7 c8Q+ Bc7 Re7 g2 Re3 Qc5 Qh3 g1B Qg3 Bf2 Qe5 Bd5 Qc3 Kb7 b6 Be5 Bd6 Qc8 Bc7 Ka8 b7+ Ka7 Qb3 Rb5 Qc3 Bfg3 b8Q+ Ka6 Ra2 Bb7 Rb2 Nh8 Rb3 Rg4 Rf3 Rg5 Rf8 Rf5 Na1 Rf2 Ba5 Rg2 Qbd6+ Ka7 Qdb4 Bd4 Bc7 Rf5 Q1b2 Bde5 Qcc1 Nf4 Re3 Nd3 Q2c3
3RR3/1N5p/2QR1Pbr/n1bK1B2/1bnR4/B1BP3N/p2nr1Qq/1n1kB3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 Kb4 f4 c5 b6 e5 d3 a5 d6 c4 g5 a4 f6 c3 f5 a3 b7 c2 d7 Kb3 f7 h3 g6 h2 g7 Bc5 f8B Nc6 b8B Qh4+ Kd5 e4 d8R e3 Be5 e2 Bc3 e1B Bh3 Ra6 B1d2 Nh6 g8Q Nf7 Qf3 c1N Qgg2 Kc2 b4 Nfe5 b5 Na5 b6 Na2 b7 Rh6 b8R Nec4 f6 Bf5 Bg4 Rg8 Nh3 Bg6 Bf5 Qf2 Rf1 h1N Qe4 Qg1 Rf4 Ng3 Re8 Kd1 Rbd8 Nf1 Be7 Bh4 Be1 Qh2 Qe6 Rh8 Qc6 Nfd2 Rd4 Bb4 Rd6 Bf2 Red8 Re8 Bf8 Re2 Be7 Ndb3 Nd2+ Kc2 Ne4 Nbd2 Rb1 Be3 Rb2+ Kd1 Nc5 Bf2 Nb7 Bg1 Rf4 Bgc5 Bf8 Nc1 Re8 a2 Rd4 Ncb3 Rc2 Nb1 Red8 Rf2 Re2 N3d2 Ree8 Rh4 Bh6 Re2 Be3 Rh6 Bg5 Ndb3 Bc1 N3d2 Ba3
4kQ1r/N1r2rPN/Q4R1Q/4BN1N/K2b1pbb/8/PQ1pn1Br/2nR3q b - - 0 1 illegal: No proof kernel
r1R2qNK/6pQ/2R3Qr/2bQR2b/3Q3R/1P1n1Nrb/1Bp3P1/1rnk2B1 b - - 0 1 illegal: No proof kernel
kbr5/6p1/K1pq1P1n/bP1n1QbB/2Rn2b1/1r4N1/R4NN1/N3BQBB b - - 0 1 illegal: No proof kernel
n2K4/Qk1n1PRN/3B1pb1/1BnpnqNB/1R1R4/R3r3/3b1P2/r1Q1B1b1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f6 axb5 Qc7 e5 Kd8 e6 Qg3 Qd3 Qg6 Qd1 Qf7 exf7 Rh6 Ra6 Rh7 Ra1 Rh8 Kd2 Kc7 Kd3 e5 Kc4 a5 Kd5 g5 h4 d6 b4 e4 c4 e3 b6+ Kb7 h6 g4 h5 e2 b5 e1B h7 g3 h6 g2 c5 d3 Nd2 a4 Rh4 a3 Nh3 g1Q Rd4 a2 Nf3 d2 Nfg5 Nd7 Ke6 d5 c6+ Kb8 b7 Ba3 c7+ Ka7 b8R Ba6 c8B Bd6 Bb2 Be5 Bc3 Ne7 Qc1 Re8 h8Q d1N Nh7 Qg6 N3g5 Nb2 Qf8 Nc6+ Qe7 Qe4 Be2 Nc4 Bh5 Bd2 Rb6 Be3 Be1 Bd2 Rb8 Qc2 Rb6 Bh2 Bb7 N6a5 Bc6 Ne5 Kd6 Bc8 Kc7 Bg1 Qc5 Re7 Kd8 Qf5 Q5a3 Ba6+ Rb8 Bc8 b6+ Ka6 Qac5 Nac4 b7 Ncb6 Bb5+ Ka7 Nf8 Re6 h7 Re7 h8R Re6 Rb1 a1N Nfh7 Nb3 Rg8 Re7 Qc7 Nbc5 Rb3 Re6 Ba4 Ka6 Rg7 Ra7 Ra8 Re7 b8B Re6 Qd6 Kb7 Bb5 Ra1 Raa3 Na8 Rb1 Ng4 Qe7 Re3 Bd6 Ne5 Bc4+ Kc6 Bd3 Ba6 Bf1 Bd3 Rbb4 Be4 Bb5+ Kb7 Rc3 Qe6 Rcb3 Bg6 Ra3 Qf5 Ke8 Kc8 Rbb3 Ndb6 Qa7 Nbd7 Rbb4 Qb1 Qa4 Kb7 Kd8 Qf5 Qa7#
2Q1rB2/q1R1P1P1/rb1K2NR/p2n1b2/Q1b2B1p/2NBn3/1B5Q/2bQk2n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kc4 g4 f5 d4 a5 e4+ Kb4 b6 h5 b7 c5 d6 c4 d7 f3 d5 c3 g6 c2 d6 f2 g5 f4 g7 f3 g6 Qc7 d8Q Bd7 Qh4 Bg4 Nh3 Kb3 Nc3 Qd8 d7 Qc8 d8B Qd7 Be7 Nh6 g8Q+ Be6 g7 Nf5 Bd3 f1B Nf4 f2 Ng6 Na6 b8B Ng3 Rh2 Qb7 Kd6 Nb4 e5 Qa7 Qf4 Bc4 e6 Bh3 Qfg4 f1N Bf4 Qe3 Rc1 Nd5 Ba7 Nh1 Bd4 Kb4 Qh4 Bf5 b3 Ka3 b4 Kb2 b5 Ra6+ b6 Qf2 Bde5 Nfe3 Bf6 Ra7 b7 Ra6+ Kd7 Qg1 Ba3+ Kb3 b8Q+ Bb4 Qgc8 Re8 Qe5 Bc5 Qhg4 Bb6 Bf8 Qf2 Kd6 Qg1 e7 h4 Rg2 Be4 Qgd7 Bf5 Qa4+ Kb2 Rg5 Qf2 Rh5 Qg1 Ra1 c1B Rh6 Ng2 Ra3 Qf2 Ne4+ Bd4+ Qcc6 Ba2 Rc3 Qe3 Rc5 Bc4 B4g5 Qg1 Qh2 Qe3 Ng3 Kc3 Bf4 Qf2 Qg4 Qe3 Ne2+ Kd2 Qh5 Ke1 Qf3 Nb6 Qc8 Nd5+ Rc6 Ba7 Bb2 Qb6 Qh5 Nge3 Nc3 Qb7 Qf3 Bb6 Rc7 Qa7 Qfd1+
QB1r1BQQ/1K2pn1p/3Qbn2/r3B3/R2b2rP/3qRBPN/7N/3n1k1n b - - 0 1 illegal: No possible last move
1bR1n3/2NPR2N/1Bq5/NrQr2Rk/4N1p1/R4nn1/P4pBb/2KbQb2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 h4 f5 d4 Kf7 Kd2 b5 e4 g5 h6 Kg6 e6 c5 h7 b3 e5 f4 e7 c4 e8R f3 e6 f2 d6 b2 d5 b4 d7 b3 e7 Na6 d6 Nc5 Bg2 Rb8 Nc3 b1B Nf3 b2 Ne4 Ba6 Qe1 Qc7 d8N Qc6 d7 Bc2 Rh3 Rb5 Nb7 Nf6 Na5 Bd1 h5+ Kh6 Rc8 g4 e8N Bd6 Nfg5 Bh2 Nc7 Ne8 Ra3 Rg8 Rb1 Rg7 h8Q+ Rh7 Qe5 c3+ Ke3 c2 Kd2 Re7 Qd4 Re5 Nh7 Rd5 Ra1 Na4 Rb1 Nc3 Ra1 Ne2 Rb1 Re5 Qc5 Ng3 Ra1 Nf6 Rg8 Ne8 Rg5 b1N+ Ke3 Nc3 Kd2 Nce2 Bb2 Nd4 Kc1 Nf3 Bd4 Rd5 Rb1 Rb8 Rb6 Bf1 Ra6 Qf6 Re6 Rb5 Re7 Qc6 Qcb4 Re5 Bb6 Rbd5 Qc5 Rf5 Kb2 c1B+ Kb1 Be3 Kb2 Bd4+ Kc1 Be5 Na6 Nc7 Nf8 Rf4 Nd2 Rb4 Ne4 Nf5 Re3 Ne8 Ra3 Bb8 Nc7 Neg7 Nfe6 Kh7 h6 Rb5 Nf8+ Kh8 Re5 Ng3 Re6 Kg8 h7+ Kf7 h8R Bc4 Re8 Bf1 Rc8 Ne8 Rh6 Rf5 Re6 Rd5 Rh5 Kg7 Nh7 Kf7 Re7+ Kg6 Rg5+ Kh6 Rg6+ Kh5 Rg5+
Nn2N1K1/n1Bp1P2/1Q2Rb1r/2R1b3/R2PQ3/1q1kp1Bb/1b4r1/BR3nB1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 Ke2 Kf7 Ke3 Kf6 Ke4 e5 h4 g5 f4 a5 c4 g4 h6 g3 h5 g2 h7 b4 c5 b3 c6 a4 h6 b2 c7 a3 Qb3 a2 Nh3 g1B Na3 b1N Nf2 Ra4+ Nc4 Ra7 Ng4+ Kf7 f6 Kg6 f7 Bf2 f5+ Kg5 f6 Bd6 f8R Kg6 f7 Nc6 b8B Bg1 b7 Bb6 Nf6 Nce7 Re8 Bd4 Qb6 Nc6 Re6 Nge7 Ne8+ Kg5 Ba3 Bb2 Bc5 Ra3 d3 Na7 Bg1 Nec6 Kd5 Rg8 h8Q Kf5 h7 e4 Qhd4 e3 h8B Ra6 Be5 Rg2 Qe4+ Kg5 Rh4 Nd2 Rb1 a1B Bg3 Bde5 Rf4 Bh8 Kd6 Nf1 Rh4 Qf6 Rf4 Qc3 Rh4 Nb4 Ke7 Qb3 Kf8 Bhf6 Kg8 Nbc6 Rf4 Bbe5 Rh4 Bab2 Rf4 Nb5 Ba7 Nb8 Rh4 Nc6 b8B Bb7 c8R Ba8 Bd6 Nb8 Rc5 Bb7 Bc7 Bd5 Rd6 Be6 Rdc6 Bh3 Re6 Qd1 Qd6 Qa4 Nb6 Qb3 Na8 Rc6 Bab6 Na7 Ba5 Rb6 Bc3 Ra6 Qdd4 Rb6 Qb4 Rd6 Qb6 Rc6 Qd5 Kf5 Ra4 Rd6 d4 Rc6 Qc4 Ke4 Qd5+ Kd3 Qf3 Ba3 Ba1 Bb2 Qf4 Bg7 Re7 Rh6 Re6 Bgf6 Qe4+
1bK1B3/2PRPNkb/5pr1/1BB1N1B1/3pb2Q/q2N2br/R2Q1Nn1/1r1n4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 d5 Kf3 g5 h4 a5 b4 a4 c4 g4+ Kf4 f6 e4 Kf7 c5 d3 h6 d2 b6 a3 h5 d4 h7 g3 h6 g2 b7 a2 e6+ Kg6 e7 Nc6 b8B Qd5 e8B+ Qf7 b5 Ne5 b6 Nc4 e5 Be7 c6 Ne3 b7 Bf5 c7 Bd7 e6 Nf5 Nh3 g1B Na3 Ba4 Ba7 Bf2 b8N Bc5 Na6 Ne3 Nc4 Bc6 Nb4 Ne7 Nd3 N7f5 e7 Bh4 Nhf2 Ng2+ Kg4 Rg8 h8Q Be4 h7 Bg3 Rh5 Rg7 Qe2 d1B Bg5 Bc2 Qd2 Rg8 Bb6 Ra3 Ba7 Bb4 Bc5 Nfe3+ Kh3 Nd1 Nce5+ Kf5 Be2 Qb3 Bf1 Ke6 Kg4 Rg6 Be2 Ba5 Bf1 Bb6 Be2 Ba8 Bf1 Ba7 Be2 Kd5 Kf5 Bb8 Bf4 Qb1 Neg4 Kc4 Ke6 Rg5 Nc1+ Rd3 Kd7 Kd5 Ne4 Qb3 Be3 Bf2 Kc8 Ke6 Bf4 Rg3 B2b5 Qa3 Be3 Rg8 Rd5 Rh3 Rd7 Bg3 Nef2 Bf5 Ne5 Bae4 Ncd3 Rg4 Rc1 a1R Rc2 Rb1 Ra2 Rg7 Qf8 Rg8 h8N Bh7 Qh6 Rg7 Qh4 Kf5 Nf3 Rg5 Nf7 Kg6 Nf3e5+ Kg7 Bf4 Rg6 Bg5
k2n3N/2pBbR2/1Pb4r/1QRN1Q2/b2NP1K1/r3N1B1/Rqb2R1p/3n2n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 f5 g4 h5 b4 a5 e4 a4 d4 h4 b6 h3 b7 h2 g6 a3 d6 Kc6 b5+ Kb6 g7 Ka7 d7 a2 g5 Qe7 d8R Rh6 d5 Nf6 g8R Qd6 g6 Rh7 g7 Nc6 Nd2 Qe6 d6 Be7 d7 Qe5 Nc4 Nd5 Rdf8 Rh6 d8N Ne3 Ne2 Bd7 Rf7 Qb2 Qd5 Nd1 Ne3 Kb8 Bg2 Ra3 Rgf8 Ka7 g8N Be8 Ne6 Nd8 Nf6 Bc6 Bh3 Kb8 Bd2 Ka7 Rc1 a1N Rc5 Nb3 Ng5 Nc1 Nd4 Ne2 Be1 Kb8 Rf1 Ka7 Rf2 Ng1+ Kg2 f3+ Kg3 f4+ Kg4 Kb8 Qf5 Ka7 Rfc2 f2 Nfd5 f1B Bg3 f3 Rd2 f2 b6+ Ka6 b8Q Bfb5 Re2 f1B Rec2 Nb7 Qe8 Nd8 Qed7 Kb7 Rf2 Ne6 Ra8 Bfd3 Ra6 Nd8 Ra5 Rb3 Ra2 Ba4 Qe8 Ka8 Qed7 Bb7 Qb5 Bb1 Rf6 Bc6 Nf7 Rd3 Nh8 Bc2 Rf7 Ra3 Qg6 Ne6 Kf5 Nd8 Kf4 Qb4 Bd7 Qb1 Qf5 Qb2 Kg4
kB4R1/1npbP1p1/K1Bb1N2/1P5Q/4rB1R/6nb/QQnb2BQ/1N3rq1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 e4 Kd7 Ke2 a5 Kd3 f5 Kc4 g3 b4 f4 h4 g2 d4 a4 d6 a3 h5 f3 d5 f2 b6 a2 Kb5 Qe7 h6 Ra3 e6+ Kd8 h7 Ra4 d7 Qf6 b7 Qg6 e5 Be7 Nh3 g1B Bg2 Bc5 Qh5 Ra6 Bf4 Bf8 Ng5 Ra7 Ne4 Ne7 Rh4 Ra4 Nf6 Na6 b8B Rg8 h8Q Nf5 Q8h6 Ng3 Qh7 Qg5 Qc2 Bd6 Qb3 Ra3 Qb2 Re3 Ka5 Nc5 b5 Nb7+ Ka6 f1B Bh3 Re8 Bg2 Ke7 d8Q+ Kf8 Qb3 Bd7 Qb2 Re1 Qc8 Qg6 e7+ Kf7 Qd8 Be3 Qc8 Rf8 e8B+ Ke7 e6 Re2 Rh1 Bd2 Rh4 Nd8 Qb7 Re4 Qa8 Nb7 Qa7 Kd8 e7+ Kc8 Qa8 Bh3 Bc6 Be2 Qa7 Beg4 Qg1 Bd7 Qh2 Bc5 d6 Rf7 Na3 Bcb4 Rf1 a1N Nb1 Ba3 Qd5 Qg5 Qda2 Nc2 Rd1 Qc5 Rh1 Qg1 Rh8+ Rf8 Rg8 Bhg4 Qh5 Bc5 Rh4 Bh3 Rh8 Ba3 Rg8 Na5 Ne8 Ne2 Bh2 Rf1 Nf6+ Be8 Bf4 Bab4 Bg5 Ba3 Qe5 Bab4 Qh2 Ng3 Bf4 Nb7 Ba7 Qe3 Bd4 Kb8 d7 Qf2 Ba7+ Ka8 Bb8 Qg1 d8Q Ba3 Qd4 Bed7 Qc3 Bd6 Qcb2
2B5/1PkR2nn/1b3Q2/1n3R2/q1BnB1p1/bbPK3p/Rr2r1NR/Q1B3N1 b - - 0 1 illegal: No proof kernel
1BR3q1/bP6/b2kp1Q1/rQ3P1p/3r1rN1/1BrnBN2/3nK1NN/2Bn3R b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 c5 d4 h5 f4 a5 f6 h3 b6 c4 b7 a4 g5 h2 d6 c3 g6 e6 b5 a3 g7 a2 f5 c2 b6 Be7 d5 Rh7 f7 Rh6 f8N+ Ke8 d7+ Kf7 d6 Rf6 Qd5 Nc6 b8B Ra3 Nd2 Ra6 Bc4 Ra5 Nf1 Nb4 Ng6 Ba6 b7 Nd3+ Ke2 Bf8 Rb1 a1R Nf4 R1a4 Ng2 Rg6 Nf3 Rg4 Bb3 Raf4 Qb5 Nf6 g8N Ne4 Nf6 Nd2 Rb2 Qe8 d8Q Bh6 d7 Qg8 Qdb6 Ke7 Qg1 Rd4 Rb1 Rgf4 Ng4 Bg5 Rb2 Bh4 Ra2 Bf2 Ra4 Be3 Rc4 Bf2 Rc7 Kd6 d8B Be3 Bb2 c1R Bg5 Rc3 Bc1 Rda4 Bh4 Ba7 Bf2 Rae4+ Be3 Rd4 Qf2 Qc8 Qg3 Qg8 Rg1 h1N N1h2 Nhf2 Rh1 Nb2 Qh4 Nbd3 Qf6 Nd1 Qg5 Nb1 Qg6 Nd2 Rc8+
b4b2/1pN1nn1Q/1RQ1RK2/1BrqrQP1/R7/n2n1Q2/1B2kPp1/4rR1N b - - 0 1 illegal: Other
rQn4K/p2N2Q1/1nNb4/P1RR2qp/2b2bBP/2N1B1RN/1k1n3r/1R1n4 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 c5 f4 g5 fxg5 bxc4 b4 Nh6 bxc5 Ng8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 g4 h5 h4 d5 a4 d4 e4 d3 a5 d2 g6 c3 c6 c2 g7 Ne7 Kg5 f4 g8N f3 c7 f2 Nh3 Qd3 Be2 f1N Nc3 Qc4 Rb1 Ne3 Qg1 N7f5 Kg6 d1N g5 Qb5 Ne7 Nc6 Bg4 Ba6 c8R Nd8 Nc6 Nd5 Be3 Rg8+ Kh7 c1B g6 Bc5 g7 Nb7 Rc7 Rgf8 g8R Nb6 Kh8 Nd6 Rh2 Ndc4 Rd2 Rfd8 Rd5 Nd2 Qg3 Bd6 Rc8 Kf7 e6+ Kf6 e7 Qc5 e8Q Ne7 Rc7 Bc4 Qg1 Rd7 Qb8 Nec8 Rgg5 Re7 Qg3 Re6 Rcg7 Qb5 Rc5 Re7 Rgd5 Re5 Rg5 Rf5 Qg2 Rf2 Qg1 Rh2 e5+ Kf7 e6+ Kf6 e7 Bc7 Rd7 Bd6 Be2 Ke6 Rg3 Kf6 e8N+ Ke6 Nd5 Kf5 Bg4+ Ke4 Nc3+ Kd3 Nf6 Kc2 Rg5 Qf5 Rc7 Qg6 Rd5 Qg5 Nd7 Ne4 Bc5 Bcf4 Qd4 Nd2 Qg7 Bfe5 Be3 Bf4 Nd8 Qe5 Rcc5 Qg5 Rc1+ Kb3 Nc6 Kb2 Rb1+
1r1QqbQ1/p2rP1Q1/B2n2p1/6N1/k4R2/4P2b/2bnK1QR/nNB1NNb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 d4 Kd7 b4 f5 h4 c5 b6 g6 b5 f4 e3 g3 h5 c4 h6 f3 b7 f2+ Ke2 c3 d6 g2 b6 Kc6 d7 Kb5 e6 c2 d5 Ba3 e7 Bb4 h7 Nh6 d6 Qe8 d8Q Nf7 d7 Rg8 h8Q Nc6 b8Q Nce5 b7 Bd6 Rh2 Nc4 Qd2 Be5 Ra4 Bg7 Nf3 g1B Ne1 Bf8 Qg7 Nfd6 Rb4+ Ka6 Qd5 Nd2 Rf4 Rh8 Qg2 Kb5 Qbc7 Rh5 b8N Rd5 Na6 Rb8 Nc5 Rd4 Nb3 Ka4 Qc3 Bb7 Qg8 Be4 Qb6 Rd3 d8N Rd5 Nf7 Rd4 Bb2 Rd3 Qcg7 c1N+ Kd1 Rd4 Ba6 f1B Qd8 Bed3 Ng5 Be4 Na5 Ncb3 Bc1 Na1 Nc4 Bf5 Rf3 B1d3 Rf4 Bc2+ Ke2 Bh3 Rf2 N2e4 Ncd2 Rd5 Nf1 Nd2 Bc4 Rdb5 Rf7 R5b7 Rf4 Rd7 Ba6+
1B3b1B/1n1Q2r1/3Q2Q1/3pR1N1/Pk2qpnb/r1nP1qNB/3R4/1BK1Qn2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 b4 Qb3 Ba6 Qd1 a4 b3 Bb5 cxb5 axb3 h4 Ke7 e4 d5 a4 f5 h6 g5 h5 c5 e6 Kd6 h7 b2 e7 b3 e8B c4 h6 Kc5 b6 c3 b7 c2 e5 g4 e6 g3 e7 g2 Nc3 b1Q Nf3 g1N Ng5 b2 Rh5 Qc8 Ne2 Nf6 Bh3 Nbd7 b8Q Ng4 Ra2 Ra7 Ng3 Ne2 Bg6 Nc3 e8Q Qb7 Qf4 Qb3 Qd6+ Kc4 Qc8+ Nc5 Qcd7 Kb4 Qe2 Rg8 h8B Rc7 h7 Rg7 Qda6 Nb7 Qad6+ Rc5 Qf1 Qa1 Qf2 b1N Bb2 c1B Qg1 Nd1 Be5 Nbc3 Qe3 f4 Bb1 Bb2 d3 Qc4 Kd2 Qe4 Qg1 Nde3 Qe1 Nf1+ Kc2 Qf3 Qg6 Ba3 Bb8 Rc7 Ne6 Be7 Re5 Bh4 Rb2+ Ka5 Ng5 Bf8 Ra2 Kb4 Kc1 Rc5 Rc2 Qa2 Rce2 Qc4 Rd2 Qce4 Qgd6 Rf7 Bf6 Nd1+ Bc2 Re7 h8Q Rf7 Qh5 Rh7 Qa6 Rc3 Qg6 Ra3 Bh8 Nc3 Bb1 Rg7 Qad6+
q3rr2/1bB1b3/1K4R1/r1pQN3/1kP4N/1R1rN1pP/4NRQ1/qnR1n2B b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Ke2 Ke7 Kd3 d5 Kd4 a5 Kc5 g5 c4 a4 b4 c6 f4 a3 e6 a2 b6 d4 h3 d3 b5 g3 b7 g4 f6+ Ke8+ e7 Kd7 f7 g2 f5 d2 b6 g3 f6 Qc7 Ne2 g1R Na3 Qd8 Nc2 Ke6 Ne3 Qc7 Bg2 Rf1 Bb2 Qd7 Be5 Qe8 Bc7 Ra6 Rc1 a1Q Rh2 Kd7 Qc2 d1R Bh1 Rd3 Rf2 Qd8 Qb2 Ra5+ Qb5 Rd6 e8N Rd3+ Nd6 Be7 f8Q Ke6 f7 Nf6 Qg8 Nd5 f8R+ Kd7 Qf7 Nc3 Qd5 Nb1 R8f6 Re1 Qg2 Rf8 Rg6 Qe8 Rg5 Ke6 Rg7 Ke5 Rg6 Nd7+ Kb4+ Nc5 b8N Bb7 Ndf5+ Bd6 Nh4 Qc8 Ng1 Kd4 Nd7 Be7 Ne5 Qd8 Re6 Qa8 Rg6 Ba6 b7 Re2 b8R Bb7 Nef3+ Ke4 Nh2+ Kd4 Rf4+ Ne4+ Bd6 Bg5 Nd5 Ba6 Rf2 Ned2 Ng4 Ree8 Ne5 Nf3 Ne3 Ne1 Qb7 Bd8 Qf7 Bg5 Bc7 Bf6 Rb5 Bb7 Qg8 Raa3 Rb6 c5+ Kb5 Be7 Qe6 Nc2 Qed5+ Kc3 Ne2+ Kb3 Ra6 Ne1 Kb6 Ra2 Ra3+ Kb4 Rac3 Ra5 Rb3+
3R1n1Q/qrB2n1k/bNQ1P1qr/2K1b1p1/3P1RNb/6pb/B3Q3/3RQR2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 f5 Ke3 Kf7 Kd4 Kg6 h4 a5 b4 f4 e4 f3 h5+ Kh7 b6 g5 e6 c6 h6 a4 d6 f2 d7 a3 e5 a2 e7 Nf6 e8Q Ne4 b7 Ra4 e6 Qc7 d8R Rg8 Nh3 Qa5 Qe2 Ra3 b5 Nd6 b6 Rg6 Nc3 Qa8 Kc5 Rb3 Nd5 Qa7 d4 Bg7 Rg1 Be5 Bf4 Nf7 Rd1 a1B Qe1 Bb2 Bc4 f1B Nf2 Bh3 Rf1 Bc3 Bg3 Rb2 Ba2 Bd2 Bh2 Bdf4 Qe2 Bg3 Qe1 Bh4 Qe2 Bg7 Bc7 g3 Ng4 Be5 Rf4 Rf6 Rdf1 Kg6 h7 Nd7+ Kc4 c5 b8R Nf8 h8Q Rb5 Qc6 Ba6 b7 Rb1+ Qb5 Rb3 Nb6 Rb2 Kd5 c4 Qc6 c3 Kc5 c2 Rbc8 Rb4 b8Q Rb1 Qe1 Rb3 Qbb7 Rb1 Qb5 c1Q+ Qc4 Rb3 Qc6 Qb1 Qce2 Rb2 Qh5+ Kg7 Qg6+ Kh8 Qf5 Rh6 Qf6+ Kh7 Rb8 Qg6 Ra8 Qb7 Ra7 Bc4 Ra3 Ba6 Rd3 Qb8 Rd1 Rb3 Nc8 Rb7 Nb6 Qa7 Qh8+
k1NBQn1n/1rbN3B/NP4QN/2nqRq1b/4nrB1/p7/Pp5B/2R4K b - - 0 1 illegal: No proof kernel
2r1b1n1/1BNB1N1K/QPP1Np1p/5Nq1/2R5/1kQ1Rn1B/3b1n1B/2rn2q1 b - - 0 1 illegal: No possible last move, all moves rejected
1NR1n2R/4q2P/N1Q1p3/2r1Nq2/KPr2k2/4b2b/1QR1np2/Rr2NrBB b - - 0 1 illegal: No proof kernel
n1rNnB2/k3qrp1/b1Qb2p1/3PP3/1rNRqBB1/K2R3R/3r4/2BRQ3 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 g5 Ba3 g6 hxg6 axb3 Be6 b4 Bc8 b5 Bf8 e4 Kd7 b4 a5 d4 f5 Kd2 c5 Kc2 Kc7 Kb3 Kb6 h4 c4+ Ka3 c3 h5 f4 d6 f3 e6 f2 h6 a4 e7 c2 e8Q Bd7 h7 Bh3 d7 Ra7 Ne2 Nh6 Nf4 Rc7 Nd2 Nf5 Nc4+ Ka7 b6+ Kb7 Qe1 Bd6 Ne6 Qe7 d8R Nd7 Be2 f1R Bg4 Rf4 Rb1 Rg8 h8R Bf1 R1h4 Ka6 b7 Ka7 R8h7 Nb6 Qc6 Na8 Rd7 Rcc8 Nd8 Rf8 Rh3 Bd3 R7h4 Rf7 Rb3 Bf1 Rbd3 Rf2 Rd1 Rd2 Rd3 Rb8 Rhh3 Be2 Kb2 Rc8 b5 a3+ Kb3 a2 b6+ Ka6 b8B a1R Bc7 Ra4 b7+ Ka7 Kb2 Rb4+ Ka3 Bc5 Be5 Nd6 Bf4 Ne8 e5 Bf1 Qce4 Bd6 b8B+ Ka6 Bc7 Ka7 Qc6 Be2 Bb2 c1Q Ba5+ Rb7+ Bb4 Qb1 Bc1 Bc5 Rd5 Bd6 Rb5 Rb6 d5 Rbb8 Rd4 Qe4 Bc5+ Rb6 Rbb3 Bf1 Nb2 Ba6 Nc4 Bc7 Bd6 Rb4 Rhd3 Qg5 Be7 Bd6 Bf8 Qh4 Rh3 Qe7 Rbd3
2B3Q1/1n2rp2/RN2Nnr1/3b2bQ/2BPpPNR/2qq4/B1N2b2/BbK1k3 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 Ba6 hxg5 Bc8 c4 e3 f4 Kd7 g4 Ke6 g6 h5 c6 a5 g5 Kf5 c5 Ke4 c7 e5 c6 a4 b6 e2 b7 Kd3 g7 a3 g6 a2 Nh3 h4 Na3 Qd5 Bb2 Bf5 Ng5 Ra7 Ne6 Nf6 g8N h3 g7 h2 Nh6 Nbd7 g8Q Nc5 b8N Rh7 Bc3 Rg7 Nd7 Rg6 Nb6 Qb3 Bd4 Be4 Bb2 Bd5 Nc2 Qc4 Ng4 Bh6 Nge3 Bg5 Bd4 Ra8 Bc3 Re8 Bd4 Nb7 Bc3 Ke4 d4 Kf3 Kd2 Kf2 c8B e1B+ Kc1 Re7 c7 Qa6 Bb2 Qa3 Bc4 Qd3 Rb1 a1Q Qh5 Bh6 Bc3 Qa5 Ra1 Bg5 Qd1 Qb4 Ra6 Qb3 Ba1 Qbc3 Bb5 Ba2 Bc4 Bb1 Ba2 Qf1 Qh5 Qfd3 Ng4+ Ke2 Bd7 Bf2 Rf1 h1B c8B Bg2 Rh1 Bd5 Bb5 e4 Rh4 Qb3 Na3 Ke1 Bc4 Qbc3+ Nc2+
3Qbb2/1qQQP1pr/1Bn2q2/2b5/nQ1P3R/1k4pB/3rR3/BBb1K1NN b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 h4 Kd7 b4 a5 e4 f5 h5 c5 e6+ Kd6 h6 c4 h7 c3 e5+ Ke7 d6+ Ke8 b6 f4 b5 a4 e7 Kf7 e8B+ Ke6 d7 Kd5 e6 g3 e7 c2 b7 f3 b6 a3 Nc3+ Kd4 Rh4+ Kc5 Ne4+ Kb4 Nf2+ Kb3 Nh1 a2 Bb2 Nc6 b8Q Qc7 d8B Bd7 b7 Nf6 Bg6 Ne4 Bh3 Nc5 d4 Be8 Qd2 c1B Qa5 Na4 Bb1 Qc8 Qbc7 f2+ Ke2 Ra7 b8Q+ Qb7 Bc3 Ba3 Kd1 f1Q+ Kd2 Qf6 Ke1 Rg8 h8Q Bc5 Qh7 Ra8 Qf5 Rh8 Qfd7 Rh7 Qcc8 Na7 Bb6 Nc6 Qcd8 Ra7 Qbc7 Ra6 Bg6 Ra7 Rc1 a1B Bb1 Bb2 Rc2 Bc1 Re2 Ra6 Ba7 Rb6 Ba1 Rb4 Bb6 Rc4 Bf1 Rc2 Bh3 Rd2 Qb4+
rB1Qk1Kb/qBP3Pn/B1pn4/4Np2/r4B2/2RNrN1r/8/Rq1QN2b b - - 0 1 illegal: No proof kernel
2nbRq2/2pR1r1r/1B1NQr1q/Q1Q4p/PRKb1n2/5N2/1rP2kQ1/RB6 b - - 0 1 legal: proof: g4 a5 d4 g5 b4 axb4 h3 e5 dxe5 f5 Bb2 b6 Ba3 Bb7 Bc1 Bf3 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Qg5 Bd2 Qh4 Bc1 Qd8 Kd2 Ke7 Kd3 d5 e4 h5 a4 b3 f4 g2 g5 d4 e6 Kd6 e7 Kc5 e8Q b5 e5 b2 f6 b4 f7 b3 g6 Ra7 f5 Nc6 f6 Be7 f8R Ra6 f7 Rh7 e6 Nf6 g7 Nd5 g8Q Na7 Rh4 Nc8 Nc3 b1R Nb5 b2 Nf3 g1B Be3 Rc1 Nd6 b1R Qg4 Rb2 Qe1 Rcb1 Qg2 Nf4+ Ke4 Bf6 Bc4 Rab6 Qed2 Rf1 Ba2 Qe7 Rh8 Qf8 Bb1 Bd8 e7 Qh6 f8Q Ra6 Nf5 Rf6 Qa5+ Kc4 Rg8 d3 Rg7 d2 Bb6 d1Q Qc6+ Bc5 e8R Qd6 Rd7 Rff7 Qfg8 Qdf8 Qd6 Bd4 Q8g5 Rb4 Qe6+ Kc3 Nd6 Rf2 Nh2 Kd2 Nf3+ Ke2 Qgc5 Rb2 Qgg5 Ng2 Kd5+ Kf1 Re4 Nf4+ Kc4 Rf6 Qgd5 Kg2 Re3 Rf1 Rb3 Kf2 Qda8 Rg1 Rb4 Rgg7 Qad5 Re7 Qg5 Ref7 Qg2+
QBn2nbN/NP6/1n2pB2/1qBPQp2/B2n1r1b/3R2N1/K4k1r/1Rq4N b - - 0 1 illegal: No possible last move
2b1NN1K/Pk1B1B1p/2n5/2B1Pnn1/pRr4B/1Q3Q2/Rb1R1q2/1R1nq1r1 b - - 0 1 illegal: No proof kernel
Qq5q/4QK2/1Rn2b1b/4NN1Q/k1pBN1n1/nNP4p/r1q3BP/3Q1bR1 b - - 0 2 legal: proof: d4 b5 a4 a5 axb5 f5 e4 e5 exf5 e4 g4 Ra6 f6 Re6 f4 Re5 dxe5 Nh6 f5 Nxg4 Bd2 Nh6 Bc1 Ng8 Kf2 h5 Ke3 d5 Kd4 Kd7 b4 g5 b6 Kc6 e6 a4 Ke5 d4 b7 d3 f7 Kb5 f6 c5 e7 a3 e8N a2 Nh3 c4 Bb2 h4 Nd2 g4 Rb1 a1Q Bg2 g3 Nd6+ Ka4 b5 e3 b6 e2 Bd4 e1N Rg1 Nh6 Nb3 d2 Ng5 Bh3 Nge4 Ng4+ Ke6 Bh6 f8N Nc6 f7 Qb8 Ng6 Qb2 f8Q Qc3 Bf3 Bf1 Nf5 h3 Ne5 g2 Qe7 Rc8 Kf7 Rg8 Rh1 g1B Bg2 Bge3 Rg1 Beg5 Rb2 Bf6 Rb1 Qa1 c3 Nc2 Rb2 Na3 Rb1 Rg6 Rb2 Qh8 b8Q Qb1 b7 Rg8 Qbc7 Ra8 b8Q Ra6 Qa8 Ra7 Qe2 d1Q Qcd7 Qdc2 Qde8 Ra5 Qd1 Ra7 Na5 Ra6 Rb6 Qb5 Nb3 Ra5 Ra6 Qb8 Rb6 Nb5 Nbc5+ Ka3 Ke6 Ra7 Qh5 Ra4 Na6+ Kb3 Kf7 Ra2 Qab7 Ka4 Nac5+ Ka3 Nb3+ Ka4 Neg3 Na3 Ne4 Qa8 Qb8 Qa7 Qbb7 Qab8 Qa8+
3NqR1N/2p3p1/2N2Br1/1BrB2nB/2P2nP1/4Rbqq/3r1QNk/n3KQ2 b - - 1 2 legal: proof: a4 e5 d4 b5 dxe5 f5 axb5 f4 Ra5 Be7 Ra2 Bh4 Ra1 Bg3 hxg3 f3 Rh2 fxg2 Rh6 Ba6 Rh1 Bc8 c4 Kf7 b4 Ke6 f4 Kf5 e4+ Ke6 b6 h5 f5+ Ke7 b7 a5 b5 d5 e6 Kf6 g4 Ke5 e7 d4 e8B d3 b6 a4 f6 a3 f7 h4 f8Q a2 Qf2 h3 Bg5 h2 Nd2 Na6 b8N Bf5 b7 Nb4 Bb5 Bc8 Ne2 g1Q Nf4 Ra6 Ng2 Qe8 Qde2 Nf6 Nc6+ Kd6 b8N Rh5 Nd8 Ke5 Rc1 a1N Rc3 Nbd5 Qef3 Nh7 Nbc6+ Kd6 Qd1 Nf4 Nf3 Bb7 Bf6 Rc5 Nfe5 Ng5 Ng6 Ba8 Nh8 Bb7 Nh4 Qg3 Ng2 Rb6 Rg1 h1Q Qf3 Qhh3 e5+ Kd7 e6+ Kd6 e7 Ra6 Be2 d2+ Kf1 Rb6 Re3 Ra6 Bd3 Rb6 Be4 d1R+ Qe1 Ba8 Bd5 Rd2 Qef2 Ra6 Ke1 Rb6 Qe2 Ra6 Nb8 Bc6 Rf1 Rb6 Bg8 Bf3 Nbc6 Be4 Nb4 Ng6 Bc3 Qe5 Qh4 Bd5 Rf8 Bf3 Qf1 Qeh2 Bb2 Ra6 Rc3 Ke5 Qhf2 Rf6 Nbc6+ Ke4 Nh4 Kf4 Bd5 Q2g2 Re3 Qgh2 Q2e2 Kg3 Ng2 Nf4 Be5 Rg6 Bf6 Qh4 Qff2+ Kh3 Qf1 Q2g3 Ne5 Kh2 Nec6 Qhh3 Be4 Rh6 Bd5 Qf7 e8B Qd7 Bg6 Qe8 Bh5 Rg6 Re4 Be2 Re7 Bf3 Re3
2Nr1nNR/1PBQq3/kp3Q2/n4q2/2p3RK/BP2b3/1nQqBQrB/r7 b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Be6 a5 Bc8 a6 Bb7 axb7 Qd6 Qc2 Qd7 Qd1 Qd8 g4 Kd7 d4 a5 f4 c5 Kf2 Kc7 f6 h5 f7 e5 b3 c4 d6+ Kc6 f5 Kb5 f6 a4 d7 h3 Kg3 h2 d5 e4 g5 e3 d6 a3 g6 e2 g7 e1N Nh3 a2 Nf4 Ra6 Na3+ Ka5 Be2 Ra7 Nb5 Nd3 Nd5 Qc7 d8Q Ka6 Kh4 Nd7 Ne7 Nb2 Bf4 Ra8 Rg1 h1Q+ Bh2 Qd5 Rg4 Qd2 Qc2 Rc8 Rc1 a1R Rh1 Qc5 Na7 Qf5 Qc7 Rd8 Nac8 Rh6 Qc5 Rg6 Qf2 Rg5 Nc6 Ne7 g8Q Bg7 f8Q Bh6 f7 Rg7 Qh7 Be3 Qfh8 Nf8 d7 Rg8 Qf6 Rg6 N6a7 Nc6 Ne7 Na5 Ng8 Rg7 Re4 Rg2 Rg4 Rb8 d8B Ra8 Bdc7 Rd8 Kh3 h4 Nc8 Qe5 Rg3 Qe7 Kg4 h3 Kh4 Qd5 Qhd3 Qf3 Rg4 Qf5 Bhf4 h2 Qd7 Qee5 Re1 h1Q+ Bh2 Qe7 Rd1 Nh7 f8B Qe1 Rb1 Qd2 Rh1 Qee4 Be7 Nf8 Ba3 Qe7 Rd1 Qc3 Rd5 Qd2 Rc5 Qfe4 Rh5 Qf5 Rh8
1b3BQn/1pk3R1/3N1p1B/1bK1R1P1/qR1n1Q1q/r1b5/1P4NR/2qBBn2 b - - 0 1 illegal: No proof kernel
8/p1Q1BbN1/PN5p/1N2b1b1/1N2BbrQ/3KQ1Rr/nr1b1q1P/1QR2k2 b - - 0 2 legal: proof: e4 d5 g4 dxe4 b4 f5 gxf5 c5 bxc5 Qd5 Ba3 Qd7 Bc1 Qd8 Ke2 Kd7 d4 Kc6 a4 Kd5 f4 Kc4 c3 g5 c6 b5 f6 e5 f7 g4 f5 g3 f6 e3 a5 g2 d5 b4 a6 e4 d6 b3 d7 b2 c7 Be7 f8N Nc6 f7 Na5 Ne6 Qf8 d8Q Nf6 Nh3 g1B Nf2 Nd5 Nd3 Nb4 Ng7 Be6 c8N Nb3 Bg2 Bg5 Ra3 Na2 Nb4 Qc5 f8Q Bf7 Qb6 Bf2 Rg1 Bg3 Qdd8 Be5 Qfe7 Rg8 Qb8 h6 Qbb6 Rb8 Qdc7 Bgf4 Qh4 Rb7 Qb8 Rd7 Bh1 Rd3 Rg3 Qf8 Nf5 Rg5 Ng7 Rg4 Qe6+ Kc5 c4 Kd4 Nc3 b1R c5 Rb2+ Bd2 Bg5 c6 Nbc1+ Kd1 Bgf4 c7 e2+ Ke1 Qc5 Nb6 Re3 Kf2 e1B+ Kf1 Rd3 c8Q e3 Be4 Bf2 Qcc7 e2+ Kg2 e1B Kf1 Bg1 Qb3 Bge3 Qe8 Rc2 Qb1 Rb2 Qe6 B1f2 Be1 Bd2 Qee7 Rf3 Qe6 Ke3 Nb5+ Nd3 Rc3 Qf8 Kg2 Ke2 Qb3 Ndc1 Qe6 Kd1 Kf1 Bf2e3+ Bf2 Bg5 Qe8 B3f4 Qe6 Rd3 Bc5 Re3 Be7 Rd3 Rg2 Rdg3 Kf2 Rh3 Rgg3 Bd6 Kf3 Ke1 Qe5 Kf1 Qd4 Bfe5 Qe3 Bgf6 Bb7 Bf4 Ke4 Bde5 Bc6 B6g5 Bd5 Bd6 Kd4 Bde5+ Kc4 Bh5 Be4 Bf7+ Ne6 Bg6 Qec5 Bfe3 Ng7 Qf2 Qd4 B3f4 Qe3 Be8 Qc2 Ne2 Kd3 Bf7 Qb1+ Nec1+ Rxc1+
1kb2RN1/R2Q3q/1rB2p2/q2n4/3K1BP1/1B1N1b1p/Q1b2PRb/2B1nR1b b - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 b4 g5 hxg5 b5 dxc5 axb4 Qe2 d4 Qd1 Ra6 Rh4 Rd6 Rh1 Rd5 exd5 Qd7 Be3 Qd6 Bc1 Qd8 Ke2 Kd7 Kd3 Kc7 a4 h5 c4 e5 a5 f6 a6 h4 c6 h3 a7 b3 a8B b2 g6 b4 d6+ Kb6 c7 b3 g7 Qe7 d7 Na6 d8B Ka7 Nc3 b1B+ Qc2 b2 c5 e4+ Kc4 e3 c6 d3 Nge2 d2 Kd4 d1B Nd5 Rh5 Nef4 e2 Nd3 e1Q g3 Qf7 Ne7 Rb5 Be2 Rb8 Rf1 Qa5 Qc4 Rb5 Qa2 Nb4 Bf3 Qg6 Bd5 Rb6 Bb3 Bbc2 Bb7 b1B Ba8 Bb7 c8R Bf3 Bc7 Qh7 B7f4 Ba6 Re8 Bc8 c7 Bh1 Bc6 Bd1 Qb2 Bdf3 Qa2 Bc2 Rd8 Nd5 Re8 Nh6 g8R Ng4 Rg7 Ne5 Ng8 Bd6 Rf8 Nc4 g4 Nce3 Re7 Ng2 Ree1 Bb7 c8Q Bc7 Re3 Ne1 Qd7 Bc8 Re7 Kb8 Re3 Bfd1 Rg3 Be2 Rg2 Bf3 Qb1 Qd2 Ra7 Qa5 Qa2 Bd6 Bfd2 Bh2 Bf4+
q1r4R/b2N1r1B/R3B1K1/n2bp2Q/2rBP3/qP1b4/1r1B2p1/RRN2Qk1 b - - 0 1 illegal: No possible last move
1rBq1r2/b1N2RR1/2b2RRp/KQrbn2N/4BqpP/krB4P/4BQ2/8 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 axb5 e5 fxe5 Nc6 g3 Nce7 h3 Nf5 Nd2 Qe7 Nb1 Nh4 gxh4 Qd8 Kd2 Ke7 c4 f5 e4 d5 b4 g5 b6 a5 b7 f4 b8Q d3 Kc3 a4 b5 h6 Kb4 d2 e6 g4 c5 f3 b6 d4 b7 a3 c6 d3 c7 Kd6 e5+ Kc6+ e7 a2 e6 f2 Nc3 Ra6 Be2 f1B Qc2 d1Q Bb2 Rb6+ Ka5 Kc5 e8B d2 e7 Be6 c8B Nf6 Bc6 Nd7 e8R Bd5 Re7 Bfg2 Rf7 Ne5 Rg7 Qf1 Nb5+ Bc4 Bcf3 d1R Be4 Qf4 Nc7 Rb3 Bc3 Rd5 Rf1 a1R+ Qa2 Rg8 Rh2 Bh1 Rhf2 Rab1 Qb2 Bb5 Rf3 Bc6 Qa7+ Rb6 b8R Bg2 Qa6 Rb3 Rb6 Be7 Qd3 Rf8 Ra6 Rb8 Qbd2 R1b3 Qb5+ Kd6 Qe1 Rc5 Qf2 Bh1 Bc4 Bg5 Ne2 Be7 Ng3 Bg2 Nh5 Bg5 Bg6 Be7 Rd3+ Bd5 Rf3 Qh2 Bcd3 Rc4 Ra8 Bd7 Qg1 Bg5 Ka6 Be3 Rff7 Bd4 R1f5 Qf4 Ka5 Rc6 Ra6 Ba7 Qh2 Be8 Be2 Bd7 Qb7 Kc5 Rg5 Be8 Be4 Bd7 R5g6 Be8 Bd1 Kc4 Rb6 Bd7 Qf2 Rc5+ Ka6 Be8 Rbf6 Bec6 Qb6 Rb4 Bdf3 Kb3 Be2 Ka3 Qb5 Rb3 Ka5
1RN1KnR1/3p1Q1P/1Q3N2/2qP1N2/pN3q2/kq2B2B/1b2Brbb/r1B1b3 b - - 0 1 legal: proof: g4 e5 a4 b5 axb5 h5 gxh5 Be7 b6 Bf8 b7 Bd6 c4 Qe7 f4 exf4 b3 Qd8 b4 Bf8 c5 Na6 b5 Nb4 Bg2 Nd5 Bf1 Nb6 cxb6 Qg5 Bb2 Qe7 Bc1 Qd8 Kf2 Ke7 Kf3 Kd6 Kg4 Kc5 Kf5 Kb4 b8B g5 d4 a5 e4 c5 h4 f6 Kg6 a4 Kf7 g4 h6 c4 h7 f3 e5 f2 h5 c3 h6 f5 e6 g3 e7 f4 e8B g2 d5 f3 b7 c2 b6 Qg5 Nd2 Qe3 Ne2 g1B Nd4 Be7 Nf5 Bh2 Bf4 Qe5 b8Q Qc7 b7 Qc5 Bh3 f1Q Ne4 f2 Nf6 Qd3 Qf1 Qb3 Rg1 Bd8 Bce3 c1B Rb1 Ne7 Rg8 Ng6 Qd6 Nf8 b8N Bb2 Qb6+ Ka3 Nc6 Bb7 Nb4 Ba6 Bc1 Bc7 Bg5 Bcg3 Bge3 Qb5 Ke7 Bh4 Bh5 Qc5+ Kf7 Be2 B5g4 Bf3 Bh5 Ra6 Ke8 Bg2 Be2 B4g3 Rg6 Rg8 h8N Rg7 h7 Rf7 Qb8 Rc6 Rg8 Rb6 Ng6 Bh4 Qg1 f1Q Qf4 Be1 Nge7 Qf3 Qf2 Qg3 Qc7 Qf4 Qa7 Re6 Qb6 Re4 Qf3 Rc4 Nc8 Rc2 Bf1 Rf2 Be2 Rg7 Qh5 Rg3 Qf7 Rgf3 Rh8 Rf1 Rg8 R3f2 Qh5 Rg1 Qf7 Qd3 Qd8 Bc3 Bcd2 Bc1 Na6 Rgf1 Rb6 B1b2 Rb8 Ra1 Bc1 Be1 Qb6 Qb3 Nb4
kBq5/3bQpP1/nNrqB2B/K7/1rRq1P2/5BN1/p1Q5/2RqbRRr b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Nd7 Ra1 Ndf6 d3 Nd5 exd5 c4 Ra2 cxd3 Ra5 Be6 Ra1 Bc8 Kd2 Kd7 b4 Kc7 g4 Kb8 c4 a5 b6 h5 c5 e5 b7 e4 g6 h4 g5 h3 d6 h2 d7 a4 g7 a3 g6 a2 b5 Ra7 c6 Ra4 c7+ Ka7 b8R Qh4 d8Q Ra3 Be2 Ne7 g8R Ra6 Qc2 Rc6 Bf3 Nd5 Na3 Nb4 Ne2 Bd7 c8B Na6 Rf1 h1R Qe7 Rh7 Rb6 Ka8 Nc4 Qg4 g7 R7h4 Ng3 Qg6 Rb7 Qd6 b6 Rf4 Rc7 e3+ Kd1 e2+ Kd2 Re4 Rh8 Rf4 Rh2 Re4 Rg2 Reh4 Rgg1 Rg4 Qe6 Be7 Rb1 Bh4 Qe7 Rf4 Ke1 Re4 Bh6 Rf4 Kd2 Re4 Kc1 e1Q+ Kb2 d2 Kb3 d1Q Ka4 d3 Rc1 d2 Kb5 Rd4 Ka5 Qee6 b7+ Kb8 Na3 Rb4 Nc4 Ka7 b8B+ Ka8 Bg2 Qd4 f4 Qed6 Be4 Qg4 Bg2 d1Q Bf3 Be8 Be6 Bd7 Nh5 Be1 Ng3 Rh3 Ne3 Rh1 Nd5 Rcb6 Rc5 Rc6 Rc4 Qh3 Bg5 Qh8 Bh6 Qc8 Nb6+
1B1R2Rq/K7/1RQ2n1B/2qnNp1k/n1p4n/2PqN3/r2NbPR1/Q3Nr2 b - - 0 2 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f5 g4 Nc6 g5 Be7 Bh3 Bf6 gxf6 Nb8 Bg4 hxg4 Kd2 Kf7 Ke3 Kg6 Kd4 d5 Kc5 a5 h4 c6 b4 d4 e4 a4 h5+ Kh7 f7 g5 f8N+ Kh6 e6 g3 c3 g2 e5 d3 b6 a3 b7 d2 e7 a2 e8Q g4 b5 g3 b6 Ra4 e6 Qd3 e7 Ra7 Nd7 Nf6 Nf3 g1N Rh2 g2 Nde5 Nd5 Ne1 Nf3 Ng4+ Kg5 h6 g1Q h7 Nh4 Ne3 Qh1 Rg2+ Kh6 Qa4 d1N Nd2 Nb2 Rb1 a1Q Qa3 Rg8 h8N Bd7 Qc8 Kh5 e8R Qh3 Nf7 Na4+ Kd6 c5 Qc6 c4 Rd8 Be8 Ne5 Nd7 b8B N7f6 b7 Qb2 Qa2 Qb6 Qa1 Qbd4 Rb6 Ra5 Rh2 Rg1 Rg2 Bg6 Rg8 Rf1 Rd8 Ne7+ Kc7 Qc5 Ba7 Be8 b8R Ned5+ Kb7 Bf7 Rdg8 Qh2 Rbd8 Bg6 Nf7 Qe5 Bb8 Qe8 Rg7 Qh8 Rgg8 Nb2 N3c2 Ra2 Ne4 Na4 Ne5 Be8 Ka7 Bf7 R8g5+ Kh6 Bf4 Bh5 Nd2 Bf3 Ne3 Be2 Rgg8+ Kh5 Bh6
R1K3bn/1N4Rn/1qp4p/PBB1q1QB/qn3BR1/r1PQ3R/k1N5/1q2b3 b - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 b4 axb4 h3 f5 gxf5 b5 h4 g4 Be3 Ra6 Bg5 Rg6 Bc1 Rg5 hxg5 Ba6 Rh6 Bb7 Rh1 Bc8 Kd2 Kf7 Kd3 d5 Kd4 c6 e4 g3 f4 b3 a4 b4 g6+ Ke7 Kc5 d4 e6 h6 f6+ Ke8+ e7 Kd7 e5 Ke6 c3 b2 g7 b3 f5+ Kd7 f7 d3 f6 Ke6 Nd2 b1Q Rh3 g2 Nc4 b2 Nf3 g1N Na5 d2 Nb7 Ne2 Ne1 Qc7 Nc2 Nf4 Bb5 Ng6 Qe2 d1Q Bf4 Qcd6+ Kb6 Kd5 e8B Na6 e6 Nb4 e7 Be6 a5 Qe5 Qf1 Rh7 Ka7 Nh8 Ra4 Qdd4+ Ka8 Qb6 Qg1 Qa1 Qg3 b1Q Qg5 Qf5 Kb8 Qaa2 Bd7 Qe5+ Kc8 Qaa1 e8R Bc5 f8R Bf2 f7 Be1 Re7 Nf6 g8Q Rg7 Rd8 Nh7 f8B Bf7 Qg3 Rg4 Qg5 Bg8 Rg7 Qa3 Bc5 Qab3 Ra3 Qa4 Rf8 Rh4 Be8 Rg4 Qe3 Rg2 Bh5 Rf2 Nd4 Ra2 Rb3 Ra3 Rb2 Qad1 Rg2 Qdc2 Rg4 Qe4 Ba4 Kc4 Nc2 Q4d4 Bb5+ Kb3 Re8 Ka2 Qd3 Qc4 Kd7 Qcb3 Ra8 Qa4 Kc8
3N2QQ/Bq2N1R1/1q1p2B1/p1n1bK1k/2RP1b2/Q1Q3B1/Pr1b1b2/nB2n3 b - - 1 2 legal: proof: f4 a5 g4 f5 b4 b5 e4 fxe4 f5 c5 bxc5 Ra7 f6 Ra6 h3 g5 Na3 Re6 Nb1 Re5 Bc4 Bb7 Bd3 Bd5 Bf1 Bf7 Rh2 Rf5 Rh1 Bh5 gxf5 g4 Nf3 g3 Ng1 Bg4 hxg4 Qb6 Rh4 Qc7 Rh1 Qd8 Ke2 Kf7 Ke3 e5 d4 h5 c4 g2 g5 b4 g6+ Ke8 c6 h4 c7 h3 c8B b3 c5 h2 g7 Kf7 c6 b2 c7 Nh6 Nh3 Bd6 Qd3 Na6 Qc3 Nc5 Rg1 h1N Bd3 Nf2 Nf4 Rh7 Bc2 Nfd3 Ne6 Ne1 Bb7 Rh8 c8Q Qb6 Bd5 Rh7 Qh8 Bc7 Bc4 Bb8 B4d3 Ng4+ Ke2 Bd6 Bf4 e3 Bg3 Rh2 Be4 Ned3 Kf3 e2 Rc1 Ne3 Rg1 Nd1 Kg4 e1B Kg5 Bf2 Kg4 Ne1 Bed3 e4 Kg5 Bf8 g8Q+ Ke8 Nd8 e3 Kf4 e2 f7+ Ke7 Ke5 Bh6 f8B+ Ke8 f6 Bf4+ Kf5 Ne3+ Kg6 Be5 Kg5 Qb7 Bh7 Qb6 Bce4 N3c2 Kf5 Be3 Bd3 B3f4 Be4 Nf3 Rc1 g1B Bd3 e1B Be4 Bgf2 Bd3 Ne6 Bc5+ Nf8 Be4 Bed2 Bd3 Qb7 Ba7 Nfe1 f7+ Ke7 Be4 Ne6 Bd3 d6 f8Q+ Kd7 Qa3 Qb6 Nc3 b1Q Nd5 Nc5 Ne7 Q1b5 Rab1 Na1 Rc4 Qb7 Rbc1 Q5b6 Bb1 Rg2 Qg4 Rh2 Qgf3 Rg2 Qfc3 Rh2 Qh6 Rg2 Q8g7 Ke8 Qh1 Rh2 Qg6+ Kf8 Qe8+ Kg7 Qg8+ Kh6 Rd1 Ned3 Re1 Kh5 Rg1 Q7a6 Qa8 Ne1 Qh8 Rg2 Qd5 Qab7 Qdg8 Bf2e3 Bh4 Re2 Rg7 Bf2 Bg3 Bc1 Qab4 Rb2 Qba3 Bcd2 Bg6#
1NrQ2RR/2Q3KN/1n2PR2/bb1p1b2/3p2n1/nB1k2b1/3PR1r1/1BBr1B2 b - - 0 1 illegal: No proof kernel
2RQ1Qr1/1N2Qn2/1qQ1B3/1k2p1r1/2b1rp2/P1BBrPb1/1N1B4/2R2bKb b - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Bg4 cxd5 Bf3 b4 axb4 e4 Na6 d6 Bg4 d5 Bc8 e5 Bg7 Bc4 Kf8 Bd3 Nb8 Bf1 Nd7 e6 Bh6 exd7 Kg7 Ba6 Kg6 Bf1 Bf8 g4 c5 a3 h5 f3 b5 Kf2 f5 Qb3 Kf7 Nh3 c4 Qc3 h4 Qe5 b3 Kg1 b4 Nf4 h3 Nc3 h2+ Kf2 b2 Nd3 b1B Nb2 b3 Nca4 c3 Qe4 c2 Bd3 Ba6 Bd2 c1R Nc5 Bc4 Nb7 Rc3 Rc1 h1B Kg1 Rh4 g6+ Kf6 g7 Nh6 g8Q Nf7 Ra2 e5 Ra1 Bh6 Qf8 Bf4 Ra2 Bg3 g5+ Kg6 Qe7 Qa5 Ra1 Rg8 d8B Qb4 d7 Qb6+ Qc5 Kg7 d6 Kf8 Qc6 Re4 g6 f4 Rc2 Ba2 Rac1 Bb5 Bc4 Rce3 Bd3 Qa6 B8a5 Qb6 Bac3 Ba6 Nc4 b2 Qb4 b1R Nb2 B2c4 d8Q+ Kg7 Qdc7 Kf6 g7 Ke6 Qb8 Ra1 Qf8 Bab5 Qce8+ Kd5 d7 Kc6 Qbe7 Ba6 Qa8 Kb5 d8Q Rh8 g8B Rb1 Bh7 Rg8 Bf5 Ra1 Rf1 Rae1 Be6 R1e2 Rcc1 Rh2 Rf2 Rh5 Rh2 Rhg5 Rh8 Kc6 Bc2 Bf1 Bd3 Bc4 Qac8+ Kb5 Qc6+ Ka6 Qg7 Rf8 Qdd6 Rg8 Qh6 R8g6 Rc8 Rg7 Qdd8 Rg8 Qcc7 Kb5 Qhf8 Qc6 Qcd6 Qb6 Qc6+
n1k4r/4r1B1/r2Rn1Q1/q1RpN3/2bb2KR/1P1p1B2/NP2BQBp/b4R2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 g5 hxg5 f5 exf5 cxd4 Be2 b4 Bf1 b3 axb3 Bb7 Qd2 Ba6 Qd1 Bc8 Ke2 h5 Kf3 e5 g4 a5 c4 d3 f6 d6 c5 Kd7 g6 h4 g7 a4 c6+ Kc7 f7 a3 g5 a2 g6 h3 Be2 Ra5 Bh6 Ne7 g8B Qd7 g7 Ng6 Nc3 Qe8 Qc2 Na6 Rf1 a1B Na2 Be7 f8Q Ra4 Bd5 Rh4 g8B Ra4 Bg7 e4+ Kg3 Bg5 f4 Be6 f5 Nf4 f6 Qh5 f7 Bf6 Nf3 Bd4 Ne5 e3 Bdf3 Bc4 Qe8 Ra5 f8R Ne6 Rf6 Ra3 Qf7+ Kc8 Qg6 Nac7 Rh2 Na8 c7 Ra6 Bf7 Nc5 B7d5 Ne6 Bg2 Qf5 Bdf3 Qh5 Qd2 Qf5 Qe1 Qh5 Qf2 Qg5+ Ng4 Qa5 Ne5 d5 Kg4 Rh7 Bd1 e2 Rhh1 e1R Bde2 Kb7 c8R Rh8 Rc5 h2 Rhg1 Nf8 Rd6 Ne6 Bh3 Kb8 Rg3 Kb7 Bhg2 Kb8 Rh3 Kb7 Nc6 Kc8 Rh4 Nf4 Bd1 Re7 Bde2 Ne6 Ne5+
2N3kR/K1B1nb2/1n1r2pr/n3B3/1b4pP/1r1RQ1BB/p3P1R1/1N2QR1q b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 a5 Ke3 f5 Kd4 Kf7 b4 c6 b6 a4 b7 a3 e6+ Ke8 e7 Kf7 Kc5 a2 d4 Ra5+ b5 Bd7 d6 Qe8 Kb6 c5 d5 c4 Bf4 c3 Qe1 c2 Be5 c1R Bh3 Rh6 Nf3 Rg6 Nd4 Be6 d7 Rh6 d8B Nc6 b8B Nb4 d6 Nc6 d7 Rc3 Bdc7 Rb3 d8R Ra6+ Kb7 Qd7 b6 Qd5 Nb5 g6 Rf1 f4 Na7 f3 Nc8 Qe4 Rd3 f2 e8R Bb4 Re7+ Kf8 Rh7 Bf7 Rg1 f1N Rg2 Nge7 Bg3 Bd2 Bce5 Qd5 Bbc7 Na5+ Kb8 Qf3 b7 Rd6 Ka7 Kg8 b8Q Bb4 Qb6 Nd2 Qe3 Ndc4 Qc3 Qf1 Nd2 Qg1 Rf1 Rc6 Nb1 Rb6 Qe1 Ra3 Rgf2 Rc6 Bg2 Qh1 h4 Rd6 Bh3 Nb6 Rg2 Rb3 Rh8+
1B3k2/b1BK3R/1N3PQP/pRr2p2/NQ5q/6rp/1r1BnN2/1Bn1nN1b b - - 0 1 illegal: No proof kernel
4R2b/2BqQNPK/bp1Bn2R/2p3rN/4nB1Q/2P3b1/2p2QB1/2Qkn1r1 b - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 a5 b4 d4 bxa5 d3 c3 Bh6 Qb3 Bf8 Qc2 dxc2 Ke2 Kd7 Kf3 Kc6 Kf4 Kc5 a4 h5 d4+ Kd5 g4 c5 f6 b6 f7 h4 g6 e6 g7 h3 a6 h2 g5 Nh6 g8Q Nc6 a5 Nb4 a7 Qd7 g6 e5+ Kg5 Ke4 f4 Rb8 a8Q+ Bb7 a6 Qd6 d5 Na2 a7 Nb4 f5 Na6 f6 Bc8 Na3 Nc7 Bg2+ Kd3 Qb7 e4 a8Q e3 Nc4 e2 Nh3 e1B Bf4 Ke2 Qa3 Bg3 Rae1+ Kd3 Re8 Qd7 d6 Nd5 Qh7 Nb4 Ne5+ Ke2 Qc1 Nf5 Qh4 Bg7 f8Q Nd4 f7 Nd3 Qa7 Qd8+ Qae7 Rg8 d7 Bh8 Kh6 Ne6 Kh7 Qc7 d8B Qd7 Bc7 Ba6 Rd1 Ne1 Rd6 h1N Rc6 Ra8 g7 Nf2 Rd6 Ne4 Rc6 Nd4 Rh6 Ne6 Ng4 Ra7 Nf6 Ra8 Nh5 Rd8 Qb2 Kd1 Ng5 Ra8 Qf6 Rd8 Q8e7 Rf8 Qf5 Qb5 Qa3 Rd5 Qff6 Qd7 Qb2 Rg8 f8B Re5 Nf7 Rf5 Qd8 Rg5 B8d6 Rf8 Qd4+ Ke2 Qf2+ Kd1 Ne5 Rff5 Nf7 Rg4 Qde7 Rfg5 Bh3 Bh2 Qa3 Rg1 Bg2 Bg3 Qc1#
1Q4Q1/2n1pRpR/2p4q/B1b1KPkP/1rR5/3R1br1/4NN2/n1bBQ1nQ b - - 0 1 illegal: No proof kernel forced: wxDB
4q1bR/3pQr1Q/1nBQPbr1/5Kp1/1NNBP1pr/k2R1N2/5n2/3N2nQ b - - 0 1 illegal: No possible last move
1RNN3b/2Pr1Pn1/1pR3N1/Bnr3qR/N2Rp2r/6pb/QKQ1k2b/1B6 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 Kf7 Kc3 Kf6 a4 Ke5 h4 Ke4 f4 e5 h5 d5 f6 g5 h6 g3 f7 d4+ Kb2 g2 c4 b6 f5 d3 c6 g4 f6 g3 c5 d2 h7 Ke3 c7 e4 a6 Bb7 c8N Nh6 a5 Nc6 a7 Ng8 a6 Qe7 Nf3 g1B Rh6 Rb8 a8Q Qc7 a7 Bf2 Qc2 Qd6 Nh4 Na5 c6 Qe7 Ra4 Nb3 Nc3 Bg7 f8N Bg1 f7 Nf6 Ne6 Nd4 Nd8 Nb5 Rd4 Ne8 Bd3 Bh2 Na4 Qg5 Ng6 Bf6 Rh5 Ng7 Rh6 Kf3 c7 d1R Bd2 Rc1 Ba5 Be5 Qd2 Rc5 Bb1 Ba6 Qc1 Ke2 Qd5 Bb7 a8R Bc6 Qc3 Bd7 Qa2 Bh3 Qc1 Re8 h8R Re7 Rh5 Rd7 R8h6 Bf6 Nce7 Rc8 Rb8 Be5 Ndc6 Re8 Nc8 Re6 Qc3 Rf6 Qc1 Rf4 Nd8 Rh4 Qc3 Ne6 Qc1 Bh8 Qc3 Ng7 Qc2+ Ke3 Nf4 Kf3 Rc6 Ke3 Ng6 Kf3 Qcb3+ Ke2 Qc2+
2r1RNb1/R1p1b2Q/R1r2Q2/2PQQ1B1/1Pbp4/4R1rq/2n2p2/1k1KBnN1 b - - 0 1 illegal: No proof kernel
4r1Bb/PpB3Nb/3N1B2/1N2Qb1N/1nR1B3/1KPQp1pR/1n1rk1n1/1q6 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 f4 Kf6 a4 g5 h4 e5 h6 d5 a5 g4 c6 b3 Kc3 g3 h7 b2 h5 d4+ Kb3 e4 a6 d3 c7 d2 c3 Bd7 c8B Be7 h6 Ba3 a7 Bc6 Bg2 Bd7 Ne2 Bb4 Na3 b1N Rh3 Qc7 Nb5 Be7 Ra4 Bd8 Rc4 Na3 Qc2 Qb6 Qd3 Ne7 Nd4 Qc6 Nd6 Nd5 N4b5 Re8 h8N Be6 h7 Qb6 Ng6 Na6 Bh1 Bg8 Be6 Ne3 Bf7 Rc8 Bd5 Rc7 h8Q+ Rg7 Be6 Bh7 Bg8 Nb4 Bf3 Nac2 Ba3 Nd1 Bg2 e3 Be4 Na2 Bc5 Nb2 Bb4 d1B Ba5 Qc5 Bc7 Bg4 Nh4 Qb6 Ng2 Bg6 Qh5 Nab4 Qh8 Ne1 Qh5 Ke7 f6+ Kd7 f5 Bh7 f7 Bf6 Nf4 Ng2 f8B Rg6 Qh6 Bh8 f6 Bf5 f7 Rf6 Nh5 Ke6 Qg5 Ke5 Be7 Re6 f8N Rh6 Nc8+ Rd6 Bcd8 Rd4 Ne6 Rd5 Neg7 Qg6 Nf6 Rd4 Qh5 Kf4 Ncd6 Rd5 Bc7 Rd4 Qc2 Rd2 Qb1 Bd7 Qc5 Bf5 Nfh5+ Kg4 Bc2+ Kf3 Be4+ Ke2 Bf6 Qf7 Qd4 Qd5 Qe5 Qd3 Qg1 Qb1 Qd1+ Kf2 Qc2 Ke2 Qd3+
n3RRb1/p5P1/B1P3Nn/3R2rp/1Bb2K2/BQQ2pRq/1b4kB/2r1nN2 b - - 0 1 illegal: No possible last move, all moves rejected
1BRr4/NNQ2K2/2B4B/3B1nkN/Q2npqpq/bP3P2/bp1r2b1/2RN4 b - - 0 1 illegal: No proof kernel
1B1krq2/1BrQ4/3b4/5pq1/1R1R1pn1/1PQr1P1K/1Bp1b1RN/1n1NB1R1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 g4 Nc6 gxh5 Nb8 Qa4 Bb7 Qe4 Bc8 Qf4 exf4 e4 g5 h4 a5 d4 c5 b6 f5 h6 c4 b7 c3 b3 g4 d6 c2 h7 g3 d7+ Ke7 h5 g2 h6 a4 d5 a3 d6+ Ke6 e5 a2 Bd2 Qf6 d8R Na6 b8B Qf7 d7 Ke7 e6 Nf6 Rh2 Rg8 h8B Nb4 h7 Rg7 Nc3 Ra3 Nd1 Ra6 Nf3 g1R Rg2 Rg6 Nh2 Rc6 f3 Rg8 Kf2 Rc7 Ba6 Nbd5 Be1 Nc3 Bb7 Nb1 Bg7 Qh5 h8Q Qg5 Re8+ Kd6 e7 Ng4+ Ke2 Ke6 d8R Bd7 Bb2 Bb5+ Rd3 Kf7 Rd8 Bc4 Rd6 Ke8 Rb6 Rh1 Qc3 Rf1 Bg3 Rf2+ Ke1 Rd2 Rd4 Be2 Rbb4 Rd3 Bf2 Bg7 Bg3 Be5 Bh4 Bd6 Bf2 Kf7 e8Q+ Kf6 Qc8 Ke7 Bg3 Re8 Bh4 Nf6 Kf2 Ng4+ Kg1 Rc5 Qe6+ Kd8 Be1 Rc7 Qf7 Na3 Rc1 a1Q Qd5 Nb1 Qdc6 Ke7 Qd7+ Kf6 Ra4 Na3 Rf2 Rcc8 Kg2 Be5 Bd2 Rc7 Ne3 Nb1 Kh3 Qa3 Rg2 Qf8 Rcg1 Bd6 Be1 Ne5 Rab4 Ng4 Qb5 Ke7 Nd1 Kd8 Qd7+
q4B2/3R4/r1rBp1kB/bP2q1qn/n4N1P/2R2Qp1/pRbQ3R/KN1B4 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 d4 g5 Kd2 c5 Kc2 a5 b4 c4 Kb2 a4 h4 e6 b6 g3 b7 g4 f6 g2 d6 g3 f5 Qc7 d7 Qf4 d8Q Na6 b8R Rh7 d5 Bd7 d6 Nc5 Be2 Ra6 Nh3 g1Q Ra3 c3+ Ka1 c2 Rh2 Qh1 Rc3 Qe5 Bh6 c1Q Nf4 a3 Qb3 a2 Bd1 Ba4 d7 Qce3 Qa5 Qb7 d8R Qa8 Rd7+ Be7 Qd5 Bc2 Qf3 Na4 Qad5 Qc5 Qd2 Qce3 Ng6 Qg5 Nf4 Rg7 Rb5 Kf8 f7 Nf6 Rc5 Rc6 b5 Nh5 Rc4 Bd6 Rb4 Bc7 Rb2 Ra6 Rd6 Ke7 f8B+ Kf7 f6 Ba5 Rd8 Rg8 Bd6 Re8 Rd7+ Re7 Ne2 Kg6 f7 Re8 f8B Rc8 Rf7 Rc4 Rd7 Rcc6 Nf4+
1B2QQ2/3r2bb/2Pp1kN1/qR1R1N1n/3K2RR/p3N2b/p2nPr1q/NB6 b - - 0 1 legal: proof: f4 b5 g4 c5 d4 h5 gxh5 e5 fxe5 Na6 dxc5 Nb8 a4 bxa4 Kf2 Ke7 Ke3 g5 h4 f5 c4 a5 b4 g4 b5 g3 c6 a3 b6 a4 c5 g2 c7 f4+ Kd4 f3 h6 f2 e6 a2 h5 a3 c6 Qe8 h7 Nh6 b7 Kf6 e7 Nf7 h6 Qd8 e8Q Na6 b8R Be7 Nd2 Ke6 Rb5 Nb8 Rhh5 Ba6 c8N Ra7 Nb3 Qc7 Bf4 Qa5 Nb6 Nd6 Nf3 g1Q Bh3+ Kf6 Nh4 Bd8 Bf5 Ne4 Qf1 Rf8 h8N Nd2 h7 Qh2 N8g6 Rf7 Rd5 Bd3 h8R Be7 Bc7 d6 Nc4 Nd7 Bb8 Bf8 Ne3 Bg7 Rg5 Rb7 Rb1 Rc7 Na1 Ra7 Qd1 f1B Rg4 Bh3 Rbb5 Nc5 Rg3 Nce4 Nac2 Rad7 Rg4 Ng3 Na1 Rf8 Ne7 Bb1 Bc2 Ke6+ Kd3 Rf5 Qf1 Re5 Qff8 Rf5 Rh5 Nge4 Rh6+ Nf6 Kd4 Rf2 Bg6 Be4 Bh7 Bf3 Bb1 Be4 Rhh5 Bg6 Nhf5 Bh7 Rhh4 Nh5+ Kd3 Ra7 Ng6+ Re7 Qg8+ Kf6 Kd4 Rd7 Qgf8+
4r1b1/rQ1q4/1P1BRN1k/p2qR2p/2P2B2/nqn5/QBp2b2/2RB1KNR b - - 0 1 illegal: No proof kernel
3BQqb1/1n1Rn3/p2B1PRp/5k1B/Bb2R3/1rr1QKpR/6P1/nN2qN2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 g5 axb5 d5 h4 fxe4 cxd5 g4 Bc4 Qd6 Bd3 Qg6 Bf1 Qg5 hxg5 Kd8 Qe2 Kd7 Qd1 Ke8 Ke2 Kf7 f4 Kg6 d4 e5 b4 c5 d6 a6 d7 g3 d8B c4 d5 c3 d6 c2 d7 e3 f5+ Kg7 b6 h6 b5 e4 g6 Bb4 f6+ Kf8 b7 Bc3 b6 Bd2 g7+ Kf7 Nf3 Ke6 Ba3 c1Q Rh3 Ne7 g8B+ Kf5 Nh2 Bb4 Qd3 Qc5 Bb3 Nbc6 b8Q Na5 Ba4 Nb7 Ra2 Rg8 Rc2 Rg4 Rc4 Rf4 Qd4 Rf3 Qd3 Ng8 Qc3 Qf8 Qd2 Ne7 Qe1 Ba5 Bd6 Bb4 Qa7 Rb8 Qa8 Nc5 Qc1 Bb7 Rd4 Bd5 b7 Rc8 b8R Nb7 Qd2 Rc3 Rc8 Bb3 Rc5+ Ke6 Rg5 Ba2 Rg6 Kf5 B8c7 Bd5 d8R Bg8 Rd7 Rb3 Bd8 Rc3 Ke1 e2 Qc1 Rfe3 Kd2 e1N Be2 Nc2 Nf1 Na1 Bh5 Red3+ Ke2 e3 Kf3 e2+ Qe3 e1Q Re4 Rb3 B8c7 Rdc3 Qe8 Nc8 Bb6 Ne7 Bd8
5BB1/Qk3BRp/qBb1npRr/1pQQ4/1Pr3N1/2q2qb1/2n1P3/NK2Q3 b - - 0 1 illegal: No possible last move
2BB1r2/2rqQP2/3p1bp1/4R1n1/R2bN1p1/n2B1NBQ/1b1PqNK1/4kN2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 hxg4 bxa5 b5 c4 b4 Ke2 Ba6 Ke1 Bb5 cxb5 Ra6 Bc4 Ra7 Bf1 Ra8 f4 Kf7 Kf2 Kf6 a4 c5 h4 e5 a6 c4 a5 e4 b6 g6 h5 c3 h6 c2 b7 e3+ Kg2 e2 h7 e1B a7 b3 a6 b2 Rh5 Qb6 Bd3 Nh6 Qf3 Qc6 Ra4 Bg7 Nh3 Qc4 Nc3 b1Q Nf2 Rd8 h8N Ng8 Qh3 Qbb3 Bb2 c1B Nf7 Qd1 Ng5 Qb5 Nf3 Nc6 b8B Rf8 Ba3 Nd4 Nce4+ Kf7 f6 Ke6 f5+ Kd5 f7 Qe2 Bb4 Nf6 Be7 Nc2 Bd8 Nh7 f6+ Ng5 Bg3 Rc8 a8N d6 a7 Qd7 Nc7+ Kc6 Kh2 Na3 Nd5 Bb2 Ne3 Rc7 Nf1 Kd5 Kg2 Bh8 Nc3+ Kc5 a8B Bg7 Bb7 Bh8 Ra8 Kb4 Ra5 Kb3 Ne4 Bd4 Bc8 Kb2 Kh1 Kc1 Ra4 Bg7 Nd1 Bef2 Kg2 Bfe3+ Ndf2 Bb2 Ra5 Bed4 Ra4 Rg8 f8Q Bh8 f7 Bhf6 Qe7 Rf8 Bb1 Qc4 Nh1 Kd1 Nhf2+ Ke2 Nh4 Ke1 Bd3 Nh7 Re5 Ng5 Bb1 Qe2 Bc2 Bbc3 Bd3 Bb2 Nf3+
N1QR1Rb1/2QNPn2/4rN1Q/3N4/1B1pB2b/4pPq1/2b1np2/kq2r1QK b - - 0 1 illegal: No proof kernel
1B2kr1b/1b2PbNn/1NpK1Q1r/4p1R1/1RqQ3R/3p1qPQ/B5RQ/3n4 b - - 0 1 illegal: No proof kernel
NRbQ3K/2bNP2p/1rb1RQ1p/3QN3/3qPr2/q1N4Q/1BB1nkp1/5n2 b - - 0 1 illegal: Other
b6K/2B1p2n/1QRN2Rn/B1b1Q1rb/Q1Rp1pP1/R1N1qP2/2k1r1Q1/5q2 b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 h4 Be6 hxg5 Bc8 d4 Kd7 d6 c6 d5 Bh6 Bc4 Bf8 Bb3 Qc7 Ba2 Kd8 d7 Qb6 Qe2 Kc7 Qf3 Kd6 Qd1 Qd8 Bc4 Ke5 d6 Kf5 Bd5 cxd5 Kf1 Ke5 Ke1 Ke6 Kd2 Ke5 Kd3 h5 g4 a5 b4 f5 c4 d4 f3 f4 c5 h4 b6 h3 b7 a4 g6 a3 b5 a2 c6 h2 b6 Nf6 c7 Nh7 g7 Na6 g8R Nb8 Bd2 Ra5 Nh3 Bg7 Ng5 Nc6 b8Q Kd5 b7 Be5 Rg6 Qg8 d8B Qe6 d7 Bd6 Ne4 Bc5 Qa4 Rb5 Rf1 h1B Ba5 Bg2 Nd6 Qe1 Rf2 Bf1+ Re2 Rb2 Qa7 Rg8 b8Q Bb7 c8R Qf2 Bdc7 Ba8 d8Q Rg7 Qh8 Nd8 Qbb6 Nf7 Qc2 Nh6 Qaa6 Bg2 Ree6 Qe1 Qf2 Re2 Ref6 Bf1 Qg2 Rf7 Re6 Rf5 Qab5 Rfe5 Qa4 Rg5 Ref6 Qc1 Nc3+ Ke5 Rb1 a1Q Rb3 Qe3+ Kc4 Bc6 Ra3 Be8 Rg8 Bh5 Rgg6 Qd1 Kb5 Qdd3+ Kc6 Qc4 Kd7 Qcd3 Nb1 Kd5 Ke8 Rd2 Nf5 Bb4 Nc3+ Kc4 Qg7 Qde2 Be5+ Kd3 Rc4 Bc5 Bc7 Qe1 Rd6 Be2 Qe5 Qf1 Re6 Bd1 Rd6 Bc2 Re6 Re2 Rf6 Ng8 Kf7 Nh6+ Kg7 Kd2 Kh8 Be4 Re6 Ba8 Rc6 Kc1 Nd6 Kd2 Qab4 Kc2 Qa4+
1Qn2RQ1/3p1Q1R/k2Bb2Q/2P1PppN/3rnb2/1q5n/1q2B3/r1B1NK1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 h4 f5 c4 g5 b4 a5 e4 a4 c5 d3 h6 a3 h7 a2 b6 Ne7 b7 Qa5 e6 Kd8 h5 Kc7 e5 Qb5 h6 Ra7 Qb3 Nd5 e7 Qa4 e8B Bg7 b5 Nf6 Nf3 Ne4 Nc3 Nc6 b8B+ Kb7 b6 Bf6 Bg2 d2+ Kf1 d1N Ne1 Ka6 b7 Ne7 Nd5 Ndf2 Bh5 Nh3 Nf4 Qb4 Qf7 Qb3 Rb1 a1Q Bd6 Qab2 b8Q Bb7 Bhf3 Ra8 Nh5 Bd5 Be2+ Bc4 Rh2 Nc8 Bh1 Bd8 Ra1+ Ba5 Ra4 Re8 h8Q Re6 h7 Rf6 Qhg8 Rg6 Bf8 Rd6 h8Q Rd4 Bd6 Ra7 Rb4 Ra8 Rb7 Bd2 Qh6 Bf4 Rc7 Ne7 Rc8 Ra7 Rd8 Nc8 Rf8 Ra8 Nd3 Be6 Ne1+ Ka5 Ng3 Ng1 Qhg7 Ra6 Rh7 Nh3 Nh5 Ra8 Qh6 Ra7 Qa8 Ra6 Bd1 Kb5 Bdf3 Ra1 Qb8+ Ka6 Be2+
1R1r1B2/B2p1nQQ/Rb1p1N1Q/2kP1Np1/B5r1/1qn1K2B/P2Q1r2/4b1q1 b - - 0 1 illegal: No proof kernel
B1kNq2B/2Ppbn1Q/4Nqp1/2pQ3r/N3QR1q/2bQ1n2/2K3Pr/2N3R1 b - - 0 1 illegal: No proof kernel
B2b1K2/QRpk3r/N1pn2pn/1NNq2R1/1bP5/2q5/3RPR1Q/N3rnB1 b - - 0 1 illegal: No proof kernel
1Brn2qn/1pNP4/pBNk3b/bB2pR2/1N2K1N1/1q3Q1Q/1PRB4/1b4r1 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 Nc6 c4 Nb4 cxd5 Nxa2 Ke2 Kd7 Ke3 c5 f4 g5 d4 e6 h4 g4 h6 g3 h5 a6 d6 g2 d5 c4 h7 c3 f6 c2 f7 Ne7 h6 Nb4 f5 Rg8 h8Q Nbc6 h7 Bh6+ Ke4 Bf8 f6 Bh6 f8B Be3 f7 Ne5 Rh2 N7c6 Ra5 Nd4 Nh3 g1Q Qf3 Rg7 Bd2 c1B Bb5+ Ndc6 Na3 Nd3 Nc2 Rg8 Nb4 Rg3 Nf2 Qg5 Ng4 Bb6 Bh6 Qf6 Bhf4 Qc3 Re2 Qb3 f8N+ Kd8 d7 Ke7 d8N Nde5 Rg2 Ng6 Bb8 Bc7 Qhc3 Kd6 h8B Bd7 Bd4 Nh8 Bb6 e5 Ra4 Be8 Nfe6 Bf7 Rh2 Bg8 Rh5 Bh7+ Rf5 Rg2 Qh3 Rg3 Qf3 Bg6 Bc3 Bh6 Bd2 Qg2 Ra1 Bh7 Rc1 Bg6 B8a7 Rc8 Bb8 Bh7 Rc2 Bg6 Nd4 Bh7 N8e6 Nd8 Ne3 Rg8 Ndc6 Qg6 Ng4 Qf7 Ne3 Rg1 Ng4 Qf8 Nd3 Qg8 Ndb4 Kd7 d6 Bg6 Bc5 Ba5 Nc7 Bh7 Bb6 Bg6 Ncd5 Ke6 d7 Bh7 B8a7 Kd6 Bb8+ Rc7 Rc1 Qd1 Kd3 Ng6 Rg5 Nh8+ Ke3 Bb1 Rc5 Qa4 Rc2 Qb3+ Ke4 Ba2 Rf5 Bb1 B8a7 Rc8 Nc7 Qge6 Bb8 Qe8 Be2 Qeg8 Bb5
nRK3kR/pNB3N1/2N1r1Rn/3P1B2/3rRbb1/2p3pq/2Q3rP/QN4q1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 e5 Ke4 c5 f4 g5 d4 c4 b4 c3 b6 g3 d6 g4 Kd5 e4 b7 g2 b5 g3 b6 e3 f6 e2 f5 e1R d7 Re4 Nf3 g1Q Nh4 Re3 Bh3 Ne7+ Kd6 Rf3 d5 Na6 b8R Bg7 b7 Bh6 Qc2 Rd3 Bf4 Nc7 Ra6 Qf8 d8N+ Kg8 f7+ Kg7 f6+ Kh7 Nf5 Bd7 Ng7 Qg2 Re1 Qf2 Re4 Qg8 f8R Bg4 f7 Nf5+ Kd7 Rd2 Rg6 Qg1 Kc8 Rg2 Rfe8 Bg5 f8Q Nh6+ Qf5 Qf8 R8e7 Kg8 Qb2 Qe8 Qa1 Qb5 Rd7 Qbf1 Be5 Bd2 Qf2 Bf4 Qc2 Nf7 Bd6 Rh4 Be5 Nh6 Bd6 Be2 Bf5 Bg4 Rf7 Rd2 Rfe7 Qh3 Be5 Rg2 Rd7 Ne6 Bc7 Nc5 Re1 Ne4 Ne8+ Kf8 Rh7 Bd1 Kd7 Nd6 Rc8 Bd2 b8N Nc4 Rge6 Kg8 Nbc6 Rd4 R1e4 Bf4 Nb7 Bg4 Kd8 Nb6 Ng7 Qe1 Rg6 Qf2 Bd6 Qg1 Kc7+ Kf7 Rg8 Re8 Be5 Re6 Rb8 Na8+ Kc8 Kf8 Bc7 Kg8 Rh8+
5BBb/2r2N1q/1B2bB2/1R3p1R/Pp3b1K/kn2PQpQ/2rRNn2/3bR3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kg3 c5 d4 g5 h4 b5 a4 f5 e6 Kd6 e7 c4 e8R b3 e3 c3 h6 c2 h7 g4 h5 b2 h6 Nc6 Rh5 Nb8 Nc3 b1B Qf3 Nd7 Re5 Qf6 Nh3 Ra7 Ba3+ Nc5 Bc4 c1B Ng5 Qe7 Ne2 Nf6 Kh4 g3 Bb4 Rg8 h8B Ne4 h7 Rc7 Bf6 Be6 h8Q Nf2 Ba3 Qh7 Nf7+ Kd7 d6 Bh6 d5 Nb3 Bb4 Bc2 Bc5 Ba3 Re1 Bf4 Bb6 b4 Bg7 Bd1 Bf8 Kc8 d7+ Kb7 d8B Bb2 Bf6 Rg7 Bd3 Rc2 Be4 Ka6 d6 Bd4 Rb5 Bb2 Ne5 Rgc7 d7 Bd4 d8R Bc3 Rbd5 Kb7 Nf7 Kc6 Qg8 Ba1 Qgg4 Bb2 Qh3 Bbe5 B6e7 Bh8 Bf6 Nc1 Ba5 Bc8 Nd6 Bd7 Rd2+ Kc5 Bd5 Bc8 Bg8 Be6 Nf7+ Kc4 Rb8 Kb3 Rb6 Ka3 Rb5 Nb3 Bb6
6BQ/b1R2r2/5RRn/1K2P1kn/p1p1b1b1/P1R1b1r1/QQNpBQ2/1N2q3 b - - 0 1 illegal: No possible last move, all moves rejected
2q1Q1N1/bN2K1b1/nP1QNQ2/N1B1pp1p/r3n1BP/3k4/4R2b/2b1R1Qr b - - 0 1 legal: proof: c4 g5 d4 b5 f4 bxc4 fxg5 d5 a4 Bg4 e4 Nf6 exd5 Bc8 d6 Bd7 d5 Bb5 axb5 Ng8 Ke2 Kd7 Ke3 c5 Kf4 h5 Kf5 a5 g4 e5 b4 a4 h4 a3 g6 c3 g7 f6 g5 a2 g6 c2 b6 c4 b5 c3 b7 Qc7 b6 Be7 Ba3 c1B Be2 c2 Bc5 Bd8 Nf3 Ra3 Re1 Bh6 Ng5 c1B Nd2 Rd3 Nb3 Na6 b8Q Rh3 Ne6 Rh1 Bg4 Qc8 Na5 Bc7 Re2 Rh7 Rb1 a1B Qg1 Bab2 Ra1 Bcf4 Rf1 Bbc1 Rfe1 Qb7 Qf8 Bh2 Qb8 Rh8 Qf8 Bb8 Qe7+ Kc8 Qf7 Ba7 d7+ Kb8 d8N Qc8 d6 Ka8 d7 Kb8 Ke4 f5+ Kd5 Nf6+ Kd6 Ne4+ Ke7 Ka8 g8Q Bg7 Qf6 Kb8 Nf7 Rh7 d8Q Ka8 Nb3 Kb7 Nd6+ Kc6 Qge8+ Kd5 Nb7+ Kc4 Qc7 Kd3 N3a5 Bgh6+ g7 Rh8 g8N Bg7 Nh6 Rg8 Qef7 Rd8 Qe8 Rd4 Ng8 Ra4 Qd6+
nN4K1/r1B5/1pN1kP1R/1Q4bb/2r2q2/1b1P2b1/p2Np1BN/1QR1QnQ1 b - - 0 1 illegal: No proof kernel
r1Q1KN2/2N1N1p1/Pr1P3q/bQBB2p1/Q4nN1/Qr1p2R1/n6k/4Rr1b b - - 0 1 illegal: No proof kernel
2n2R2/3p2B1/rR2QQ1b/1r1QB3/bbQP2Pq/4p2k/1K2NNp1/1R1bn1R1 b - - 0 1 illegal: No proof kernel
1R1qk1NK/3p1N2/1Rbr1n1b/1P3R1B/6pp/RN1Nn3/1rQ2P2/3bB1Qb b - - 0 1 illegal: No proof kernel
4R2k/1b1p1Bn1/R1Rbq3/p3Bn2/6NR/QB2pQrP/1K1P1NrB/r1r5 b - - 0 1 illegal: No possible last move
1N3NQ1/1kp2r1B/2bpPn2/4R1K1/p1R5/nN1r2Qr/PNr5/bR1R2Bq b - - 0 1 legal: proof: e4 b5 d4 e5 dxe5 h5 g4 f5 exf5 Nh6 gxh5 Ng8 c4 bxc4 Kd2 g5 Ke3 a5 h4 g4 Kf4 g3 b4 a4 e6 c3 b5 d6 h6 g2 f6 c2 h5 Ra5 h7 Na6 b6 Qe7 f7+ Kd8 b7 Rb5 b8N Rc5 h6 Qe8 Nd2 Bg7 f8N Qh5 Bd3 Re5 Rb1 Re1 Qf3 Rd1 Nh3 g1R Qg3 Bf6 Nb3 Bh4 Be3 c1R f3 Rc6 Nf2 Rdf1 Nd1 Rg2 Bg1 Rd2 Nb2 Nf6 Bg6 Rg8 h8Q Nb4 h7 Bd7 Bc2 Rg6 Qg8 Kc8 h8R Rh6 Bh7 Nc2 Rd1 Bg5+ Kf5 Na3 f4 Qf3 Rh4 Rh5 Kg6 Rc5 f5 Qh1 Rc4 Rh3 Rb1 Kb7 Rd1 Ng4 f6 Bc6 f7 Bf6 Rb1 Be5 Kg5 Rd3 Rcc1 Rdc3 Rd1 Nf2 Bd3 Be8 Ng6 Ka7 f8R Ng4 Nc4 Bc6 Rf5 Kb7 Rh4 Bh8 Rd5 Rf7 Nf8 Rc2 Bg6 Ba1 Nb2 Nf6 Bh7 R5c3 Rc4 Rd3 Re5
1r3R1N/n1pqB3/kP1npBp1/5RBN/b2R1r2/4K1QB/Pb4Qb/2R1b3 b - - 0 1 illegal: No proof kernel
Q1K4B/rPN1b3/b4Q2/kb1NpnBr/n3Q3/1p3pb1/R5BP/2Q1B1Rq b - - 0 1 illegal: No proof kernel
b1B3R1/B1Qn2K1/7N/2pN2Qq/r2r1N2/1qP2p2/RRq1pPb1/1rk1NR2 b - - 0 2 legal: proof: e4 d5 a4 dxe4 g3 f5 Ne2 b5 axb5 g6 Ng1 f4 Be2 f3 Bc4 Qd7 Bf1 Qd8 Bg2 g5 Bh3 Nc6 Bf1 Bh6 h3 Ne5 h4 g4 Qe2 Be3 Qd1 Bg5 hxg5 Ng6 Ra2 Kf8 Ra1 Nf4 gxf4 Ke8 d4 Kd7 Kd2 Ke6 Kc3 Kd5 b4 e5 b6 h5 f5 a5 b5 h4 f6 g3 g6 a4 f7 a3 f8R c6 b7 h3 b8N h2 g7 a2 b6 e3 b7 Ke4 d5 e2 d6 e1Q+ Qd2 g2 d7 Nf6 g8N Qc7 d8Q Qd6 Na3 Qe6 Nd7 Qe2 b8R Rh4 Rb2 Ra4 Nb6 Bb7 Qg5 Ba8 Nh3 g1Q Be3 Qgg4 Qc7 Qh5 Nh6 Qd1 Ba6 Nd7 Re1 h1B Rf1 Bg2 Rg8 Qb1 Bc8 Qb3+ Kd2 Rf4 Nd5 Rh4 Ba7 c5 c3 Qd3+ Kc1 Qe2 Nc2 Kd3 Ng1 e4 Nh3 e3 Ne1+ Kc4 Qg6 Rd4 Qg5 Qd3 Nhf4 e2 Qe7 Re4 Qg5 Qb1+ Kd2 Rd4+ Ke3 Q1c2 Rab1 a1R Ra2 Rd2 Rbb2 Rb1 Ng6 Rdd1 Kf4 Rd3 Kf5 Rd4+ Ke6 Bh1 Ng2 Kd3 N6f4+ Kd2 Ne1 Kc1 Ke7 Bg2 Ke6 Qh1 Kf7 Qh5+ Kg7
KQ2rR2/Q1N2p2/NR2B1pP/q6p/1R6/1qB2r1P/k1nN1n1R/N1bnq3 b - - 0 1 illegal: No extended proof kernel
b1Nk4/2N3pK/q1QqR2R/p2PB3/Qnn2pQ1/5BqN/2r2P2/1r1N1Q1n b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 e6 e4 Ba6 g4 hxg4 d4 Bd6 e5 Bb7 exd6 Bc8 Ke2 a5 Kd3 c5 Ke4 f6 h4 c4 b4 c3 b6 e5 h5 g3 b5 g2 d7+ Ke7 Kf5 c2 Kg6 f5 h6 e4 h7 e3 b7 e2 d6+ Kf8 d5 e1N b6 f4 Bb2 c1Q Rh6 Nd3 Nh3 g1Q+ Qg4 Qc5 Bg2 Qd1 Nc3 Qb1 Bf3 Qc6 Nd1 Qcc1 Be5 Nc6 b8N Qb3 b7 Qcc4 Na6 Ndb4 b8N Bb7 Nc7 Qa6 Ra2 Qa3 Re2 Nf6 Re3 Rg8 h8Q Nh5 Kh7 Ng3 Re2 Qh4 d8Q+ Kf7 d7 Nh1 Qc8 Ke7 Re3 Qg3 Re2 Ra7 Re3 Ba8 d8Q+ Kf7 Re4 Rb7 Nd7 Rb5 Re3 Rc5 Re2 Rc2 Nb6 Re8 Qdh4 Re6 Qhh5+ Ke7 Qhg6 Rf6 Qd3 Rf8 Qb7 Kd8 Nc8 Re8 Qb3 Rf8 Qa4 Rg8 Bc3 Ne5 Qbc6 Nc4 Ree6 Re8 Qg8 Rf8 Qf7 Re8 Qff5 Rf8 Qd3 Re8 Ref6 Re1 Re6 Rg1 Be5 Rf1 Ne3 Rb1 Nd1 Na2 Ng5 Qd6 Nh3 Nb4 Qf1
NBR3K1/p2b2N1/3QQ3/P3Qpp1/b4kq1/1qN3R1/2Pbr1B1/1nrQ2rN b - - 0 1 illegal: No possible last move, all moves rejected
b1QbN3/1qBB4/p2NB1Q1/5b1p/4p3/QR2rBqq/1KnPr2P/4QRk1 b - - 0 1 illegal: No possible last move, all moves rejected
R1K2B2/3rQ2q/BR1B1pN1/nBRP1N1Q/3b2q1/1p3PR1/p2r2n1/q1rk4 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 h5 gxh5 d5 bxc5 dxe4 a4 b4 Be2 Bd7 Bf1 Bb5 axb5 Qd4 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Ke6 Kf4 Kd5 Kf5 Kd4 h4 e5 c4 a5 f3 g5 b6 a4 h6 f6 Ke6 e3 c6 b3 h7 e4 b7 e2 h5 Kd3 c5 g4 c7 a3 c8B g3 h6 e3 c6 g2 c7 Ra5 Rh3 Rb5 Nc3 Nd7 b8R Bg7 Rg3 Rd5 Nh3 g1Q Rb6 Nb8 Qe1 Kc2 d4 Rd7 d5 Bf8 Nd1 Nc6 Ba6 Nge7 c8R Nf5 Nf4 Bc5 Ng6 Nh4 Qb4 e1R Bfb5 e2 Bf4 Rf1 Bd6 e1Q+ Qe4+ Kd2 Ne3 Bd4 Nf5 Na5 Rc5 Qc7 Qe5 Rc8 h8Q Rf2 h7 Ng2 Qg7 Qe4 h8B Qg4 Qe7 Qa7 Ra2+ Kd1 Bg7 Rd2 Bf8 Qh1 Qe3 Rcc7 Qg5 Qh7 Qh5 Rb7 Rc8 Rbc7 Ra8 Rc1 Rc2 Qb7 Rcc8 Qc6 Rc7 Qc3 Rc5 a2 Qd8 Rf7 Qe7 Qa1 Kd7 Rg7 Kc8 Rf7 Qe3 Rd7 Qe7
1N2NR1Q/pQK3n1/pB2pBb1/1RB2b2/r4Q2/Pqr1P2q/5q2/Qkb3B1 b - - 1 2 illegal: No possible last move
1r1b2bN/1b1pP1p1/2pn1B1Q/8/R2N1qQK/2R1nqP1/R1RN4/N1n3kB b - - 0 1 illegal: No proof kernel
N2N3n/1P1rp1B1/3r3Q/3p2p1/bqQ2rq1/R1RB4/1QB1P2q/QKB1n2k b - - 0 1 legal: proof: g4 b5 h4 f5 gxf5 c5 d4 cxd4 a4 g6 axb5 Bb7 h5 Bg7 h6 Ba6 hxg7 Bc8 Kd2 Kf7 b4 Kf6 c4 Ke5 Kc2 Ke4 f4 a5 f6 h5 f7 d5 f8Q g5 b6 a4 c5 a3 f5 a2 f6 h4 b5 h3 c6 h2 c7 Ba6 c8Q Qd6 f7 Nc6 b7 Rh4 b8Q Ne5 b6 Nd3 Nh3 Bb5 Nd2+ Ke3 Qc4 Ra7 Bg2 Rf4 Be4 Nh6 g8B Qb4 Bgh7 Rd7 b7 Bc6 Qe5 Bb5 Rg1 h1Q Rg3+ Qf3 Qfg7 Bc6 f8B Nf7 Bhg6 Nh8 Qh6 Bb5 Qf1 Bc6 Bg7 Ne1+ Kd1 d3 Qb2 Rf6 Bef5 Rfd6 Nf4 Bb5 Qfh1 Kf2 Ne6 Qg4 Nd8 Bc6 Nb3 d2 Nc5 Ba4+ Bc2 Rc7 Ra3 Rcd7 Bd3 Kg3 Rb1 a1R Nce6 Kf2 Qf1+ Kg3 Qff6 Kg2 Nc7 Ra2 Qa1 Rb2 Na8 Rb3 Bh7 Rf3 Bd3 Rf4 Rbb3 Kg1 Qfb2 Kg2 Rc3 Kg1 Qe6 Kh1 Bb3 Nf3 Kc2 d1Q+ Kb1 Qdg1 Qf6 Qh2 Bbc2 Ne1 Qh6
nn2r3/3NpBKN/k4R2/bPR1bRp1/pQ1Q1B1n/B4r2/P5B1/4Rbr1 b - - 0 1 illegal: No possible last move
kN2NnQ1/QNP2p2/b3p2B/Rr2pn1B/1r3P2/b2Q2b1/2N1QR2/K4nr1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 d6 gxh5 b4 a4 Qb6 e5 Qb5 axb5 dxe5 c4 Kd8 h4 Kc7 d4 Kb7 Kd2 a5 Kc2 g5 Kb2 b3 d5 g4 h6 g3 b6 g2 c6+ Ka6 b7 Ka7 d6 a4 h5 e6 c5 Ne7 c7 Ng6 c6 Na6 b8N Bg7 d7 Nf4 d8Q Nh3 h7 Rg8 h8Q Bf6 h6 Rg7 h7 Nc5 Q8d3 Nf4 Qg8 Nb7 h8Q Nd6 Nh3 g1R Rh2 Ng6 Na3 Ba6 Be2 Nf5 Nf4 Bh4 Nd5 Nf8 Bh5 Bg3 Nc2 Rg4 Bh6 Rb4 f4 a3+ Kb1 b2 Nf6 Rb5 Rf2 Rb4 Ka2 b1N Ne8 Nd2 Q1e2 Nf1 Qf6 Rb5 Qe7 Rb4 Rb1 Rb5 Ka1 a2 Rb3 Rb4 Ra3 Rb5 Ra5 Rb4 Nd7 Rab8 c8N+ Ka8 Ncd6 R8b6 Nb8 R6b5 Nb7 Rd4 Qb3 Rdb4 Kb2 a1B+ Kb1 Bb2 Qbd3 Bc1+ Ka1 Ba3 c7 Rg2 Qc5 Rg1 Qa7+
3n1r1n/3p1Npb/3K3B/1RQQ1P2/3r1R1Q/1N1P1Rbk/R1n1p3/2QB1rb1 b - - 0 1 legal: proof: g4 h5 a4 hxg4 b4 b5 c4 f5 e4 c6 exf5 Nh6 c5 Qb6 cxb6 Na6 b7 Kd8 axb5 Ng8 b6 Nb8 b5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 f4 a5 f6 g3 f7 e6 f5 a4 d3 g2 Be2 c5 Nh3 g1B Nd2 c4 Ra2 a3 Ng5 c3 Nb3 Bfc5 f8Q c2 Nf7 Kh3 Bh6 Ne7 Qc1 Bcf2 Bd1 Ng6+ Kd6 Nc6 b8Q e5 b7 e4 b6 Ra4 Qa8 e3 b8R e2 b7 Nd8 Qa5 Rb4 Qd5 Rd4 Ra8 Rg8 b8R Nh8 Rb5 Bb7 Ra4 Ba8 Qe7 Rf8 Qee3+ Bg3+ Qe5 Be3 Rf1 Bg1 Rf3 Bb7 Qb1 c1R Rc4 Kg2 h4 Kh3 h5 Ba6 Qb2 Rb1 Qc1 Ra1 Rac2 a2 Ra4 Rb1 Rac4 a1N Ra2 Nc2 Rca4 Rg4 Raf4 Bb7 Qc5 Bd5 Qe4 Be6 Qed5 Ra1 Bg5 Rb1 h6 Ra1 h7 Rh4 Ne5 Bg8 Bh6 Rg4 Rf2 Rh4 R4f3 Rf4 Nf7 Rd4+ Rf4 Ng6 h8Q Bh7 Qg8 Nh8 Rf3 Re8 Qf8 Rb1 Qe7 Rf8 Qh4+ Kg2 Q1a3 Ne3 Bc2 Rf1 Bd1 Nc2 Qe7 Kh2 Qc1 Kh3 Qh4+
1Qn5/1R1p4/4N3/bP3npK/1p4Q1/1RqBQNPk/1rNNn3/BQb2b1b b - - 0 1 illegal: No proof kernel
k1bn3n/PB2R3/Q6Q/3Kpp1n/1bNprR2/4bQn1/1B1NBP2/1Q2B2q b - - 0 1 illegal: No possible last move, all moves rejected
2Q2B2/3R2Np/p3q1R1/2Q2BnN/Rn1rBK1b/2kpRBr1/Pr3nP1/3n4 b - - 0 1 illegal: No possible last move, all moves rejected
b1nkNb1N/1Qpqb3/3B1QBN/3bK2B/1NRP4/5p1q/3p1PR1/1B2n2r b - - 0 1 legal: proof: h4 a5 a4 e5 d4 b5 axb5 g5 c3 gxh4 Be3 d5 dxe5 d4 Bf4 d3 Bc1 Ra6 Bh6 Rd6 Bc1 Rd4 cxd4 Ba3 Be3 Bc5 Bc1 Bf8 Kd2 f5 Ke3 h5 Kf4 a4 g4 d2 b4 a3 e4 h3 b6 h2 b7 a2 g5 h4 g6 h3 g7 Nh6 g8N Bc5 e6 Rh7 b5 Qd7 b6 Qc6 e5 Qb5 e7 Qb3 Bd3 Kd7 e8B+ Kd8 e6 Ba3 Ke5 f4 Qf3 Qb4 Nc3 Rh8 Ne4 Bb2 Ne2 Qa4 Rg1 h1Q Nef6 h2 Rg2 Na6 b8N Nf5 b7 Nb4 Na6 Ne7 b8Q Ba3 Qbb7 Nc2 Bh7 Bc5 Ba3 Ne1 Rc1 a1B Rc4 Bc3 Bb1 B3b4 Qfc6 Rh4 Nh6 Bd7 Qd6 Nc8 Bh5 Rh3 Qdb6 Bf8 Q6c6 Bbc5 Qf3 Bc6 Bb4 Bce7 Bd6 Bd5 Nb4 Rh4 Nfg4 Bg5 e7+ Kd7 e8B+ Kd8 Bef7 Bge7 Nf6 Qd7 Ne8 Rh3 Nc3 Rh4 Ne4 Rh3 Bfg6 Qf1 Ng5 Qd3 Qa6 Ba8 Qab7 h1B Rg4 Bg2 Rg3 Rh1 Rg4 Bh3 Rg2 Be6 Qh3 Qf3 Qf5 Qh3 Qf6 f3 Nf5 Qc6 Nh6 Bd5 Ngf7+ Kd7 Nh8 Kd8 Qb8 Qcd7 Qb7
QrR2N2/B1K1nRNn/RP1pQ1n1/3P1R2/3k3p/n2N1Np1/r1Bbq3/4q3 b - - 0 1 illegal: No proof kernel
R1N4q/8/2prQbp1/B7/1R1bk1Pq/rb1NN2N/PR2p1nK/1bQBR3 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 f5 c4 fxe4 cxd5 g6 h4 Nc6 h5 Nd4 h6 Nf5 Ke2 Qd6 Ke1 Ng7 hxg7 Qd8 d4 Kd7 g4 Kd6 f4 b5 Kf2 e5 Kg3 h5 a6 c6 a7 e3 f5 e4 f6 b4 f7 e2 Nd2 e1B+ Kh2 h4 Nc4+ Ke7 d6+ Kf6 d5 h3 d7 b3 d6 e3 Be2 b2 Bd2 b1B Ba5 Qe7 d8N Bf2 d7 Ba6 Nb7 Nh6 d8N Nf5 g8Q Nh4 Nc5 Ng2 Qc1 Bg7 Bd1 e2 Nd3 Bd4 Ne3 Bc4 Nb7 Bb3 f8R+ Kg5 Rc8 Bgf6 Qe6 Rd8 Rb8 Qe8 Nd6 Qh8 Nc8 Rd6 Nc5 Kf4 Rb4 Rb8 a8R Rb5 Bd8 Ra5 Bc7 Ra3 Ba5 Bd3 Rb1 Bf5 Rb2 Bb1 Nd7 Qh4 Ne5 Ke4 Ngf3 Qh8 Re1 Qh4 Ng1 Qh8 Kg3 h2 Nh3 h1Q Bb6 Qf1 Kh2 Qf2 Ba5 Qfh4 Nd3+
Qr2BBQ1/q2k2b1/3BN1B1/2RN1qb1/3P1p2/1p5p/2Nn1PNb/2Rb2nK b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 d4 a6 h4 Ra7 hxg5 Rb7 b4 Rb6 e5 Rd6 exd6 a5 Qd2 axb4 Qc2 Kd7 Qd1 Ke8 a4 h5 g4 c5 g6 f5 g5 e5 d7+ Ke7 a5 b3 a6 b4 g7 h4 d6+ Ke6 a7 h3 a8Q c4 g6 c3 Na3 c2 Qg4 b2 Bd3 b1Q Kf1 b3 Ne2 e4 Kg1 Qb6 d8N+ Kd7 Ne6 e3 N2f4 e2 Ng2 e1B Bf4 c1B Nc2 Nc6 Ra5 Nf6 g8N Ne4 g7 Qa7 Ne7 Nd2 g8B Ne5 Nd5 Bg7 Rc5 Ba6 Be4 Be2 Bf7 Rb8 Qg6 Bd1 Kh2 Bf8 Qg8 Bg7 Rg1 Nef3+ Kh1 Ba3 Rf1 Ng1 Bh6 Be5 Bf8 Bh2 Bd3 Ndf3 Be4 Bd2 Re1 Bg5 Bd3 f4 Bdg6 Be2 Rc1 Nd2 Na1 Qf5 Nc2 Qb7 Rb5 Kc6 d7 Bd1 d8B Kd7 Bc7 Qa7 Ra5 Bd6 Rc5 Be5 Bcd6 Bg7 Be8+
3k3B/2Nr1BQN/QNrRprq1/n2p2B1/1Kn1q1R1/3bP2N/p3B2P/r7 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e6 axb5 Ke7 f5 Kd6 f6 Be7 fxe7 Ke5 Qd2 Kd5 Qd1 Kd6 Kd2 Kc7 e8B a5 c4 d5 b4 f5 b6+ Kd6 b7 Ke7 c5 g5 b5 g4 c6 a4 c7 d3 Kc3 d2 b6 f4 h6 a3 h7 g3 Bf7 g2 Kb4 f3 Qa4 d1R Qa6 f2 Nh3 g1Q Nd2 Nf6 Ne4 Qg6 Bg5 Rc1 e3 Rc6 Be2 f1R Rg1 a2 Rc1 Ra7 Rg4 Rf8 h8B Qd6+ Rc5 Qf4 Rc4 Bd7 c8N+ Kd8 Rc3 Ra1 Rc5 Rc7 Rc6 Qf3 Rd6 Nc6+ Ka4 Qg2 b8N Na5+ Kb4 Rc6 b7 Qf3 Nb6 Qh1 Bh6 Ne8 Nf6 Qf3 Nh7 Qg2 Bg8 Rf6 Bg5 Qh1 Bf7 Qhe4+ Qc4 Nc7 Qd4 Nb5 Na6 Na3 Nc7 N3c4 b8Q+ Ke7 Bd1 Bc8 Qb2 Ba6 Be2 Bb5 Qc8 Ba6 Nb5 Rd7 Nc7 Bb5 Qb7 Kd8 Qe5 Na3+ Qd4 Bd3 Qa6 N3c4 Bh6 Rf2 Qg7 Rf6 Bg5
Q1KBkb2/4R3/1rpq1b2/1P2pBpn/q4QN1/1RP1bNR1/3rN3/2N2b1R b - - 0 1 legal: proof: g4 b5 e4 g5 a4 d5 axb5 dxe4 h4 f5 gxf5 Nc6 h5 Ne5 Rh3 Rb8 Rh1 Ng6 hxg6 Ra8 Ke2 e5 Ke3 h5 b4 a5 d4 h4 f4 c6 d5 a4 d6 h3 b6 h2 f6 a3 c3 a2 b7 Kd7 b8R Bg7 f7 Rh3+ Nf3 Bb7 f8N+ Ke8 f5 Rh5 f6 Ra5 Ba3 Rc5 Qa4 Ba6 Ne6 Bd3 f7+ Kd7 f8Q Qb6 Nf4 Rh7 Qa8 Qc7 Ne2 Qc8 Qf4 Rc4 Nbd2 Bf6 g7 Rd4 Nb3 Qd8 Nbc1 Ke8 Bh3 Rh4 Rg1 h1Q Rg3 Qd1 Bf5 Qa4 Rb1 a1B d7+ Kf7 Rb3 Bb2 Rb7 Qb8 d8N+ Ke8 Nf7 Ba6 Rd7 Rd2 Nh6 Rh1 Ng4 Rh7 Neg1 Bf1 b5 Rh8 Bf8 Ba3 Be7 Bb4 Bd8 Bf8 Nge2 Qc7 Rd3 Qd6 Rh3 Rh7 Rh1 Rh8 Kf2 e3+ Kg3 Ne7 g8R Nd5 Rg7 Rh7 Ra7 Rb7 Nfh2 Rb6 Kf3 Qa6 Ke4 Qa2 Nf3 Qa4+ Ned4 e2 Rah7 e1B Rd7 Nb4 Nde2 Bf2 Ra7 Bd4 Rah7 Bh6 Rc7 Nd5 Re7+ Kf8 Re3 Bhg7 Rd3 Be3+ Nfd4 Bf2 Rg3 Be3 Bg6 Bh6 Kf5 Bh8 Nf3 Nf6 Bh7 Nh5 Bg6 Bf6 Bh7 Qda3 Ke6 Qc5 Bd3 Qca3 Kd7 Qd6+ Kc8 Bg7 Rd7 Ke8 Bf5 Bf8 Re7+
bR1R2nk/2Q1npB1/QQpPNB1B/6pK/2r4n/2bn2q1/2P5/N1qB1Q2 b - - 0 1 illegal: No possible last move, all moves rejected
2R2Qrb/2N1n1nB/3Bbp2/1rnRN2p/k1K2P1Q/2np1P2/2RR3r/2B1B3 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 cxd4 axb5 g5 h4 Qb6 hxg5 Qg6 Kd2 Qd3+ Ke1 Qf3 exf3 Ba6 Na3 Bb7 Nb1 Bc8 Ke2 a5 Kd3 d5 c4 Kd7 b4 h5 g4 e5 g6 a4 c5 a3 g5 f6 g7 a2 g6 Ba6 c6+ Kd6 c7 Bc8 b6 Kc6 b7 Kb5 Nc3+ Ka6 b5+ Ka5 b6 Bb4 Nh3 Bf8 Nb5 Nc6 b8B Nge7 g8R Bg7 b7 Be6 c8R Nd8 Qe1+ Ka4 Rh2 Ra5 Nc7 Rb5 Rf8 Rg8 Ba7 Bh8 b8B Bg7 Rd2 Bh8 Rb1 a1N g7 Nb3 Rbb2 e4+ Ke2 e3 Kd3 e2 Rbc2 Ra5 Qh4 e1R Ng5 Re2 Nf7 Rh2 Ne5 Rb5 Re8 Bh3 Bb6 Ne6 Ba5 Bg4 Red8 Bh3 Re2 Bg4 Be1 Nbc5+ Kd2 d3 Kc3 d4+ Kc4 d2 Rd5 d1N Red2 Nc3 Bd3 Bh3 Be4 d3 Bh7 Rd8 g8Q Ng7 Qf8 Be6 Na6 Re8 Bd6 Rd8 Nc7 Re8 Qf7 Rg8 Qf8
2n2NR1/P1pn2k1/B4b1p/1Q2R3/1b4K1/1nb1QNN1/3rp1NP/rb1QQ1B1 b - - 0 1 legal: proof: c4 f5 e4 fxe4 g4 d5 cxd5 a5 f4 a4 g5 a3 f5 Kf7 bxa3 Qe8 a4 Qc6 a5 Qf6 gxf6 Ke8 Kf2 Kf7 Kg3 g5 d4 e5 a4 b5 a6 g4 d6 h6 d5 e3 d7 b4 d8N+ Ke8 a7 e2 f7+ Ke7 f6+ Kd7 a5 b3 d6 e4 a6 e3 Nc3 b2 Ne6 b1N Nf4 Bb7 Ng2 Ke6 d7 Rh7 d8Q Nd7 Ne4 Bc6 Qe7+ Kf5 Nf3 Kg6 Ba3 Rh8 Bc5 e1B+ Kf4 g3 Kg4 Rd8 a8Q Bc3 Qb8 Nd2 Qb5 Nb3 Qe6 Bg7 f8Q Ne7 f7+ Bgf6 Qe8 Kg7 f8N Nc8 a7 Rg8 Rg1 Ba8 Ra5 Bd5 Ngh4 g2 Ng3 Be4 Bc4 Bb4 Re1 g1B Ng2 Bf2 Qe5 Bh7 Qc3 Bd3 Re2 Bh7 Qce1 Bb1 Rd2 e2 Qe3 Bg1 Rd5 Bbc3 Re5 Bb4 Ra6 Bf2 Rae6 Bg1 Re8 Bf2 Qe4 Bd4 Qf4 Bdc3 Bg1 Ndb6 Qe3 Rd2 Qa4 Nd7 Ba6 Ra2 Qb5 Ra1 Ng6 Rf8 Rd8 Rf7 Rh8 Re7 Nf8 Re6 Qe4 Rd6 Qe3 Rd2 Rg8+
1Q1BBNk1/1NN1r3/b4Qp1/1rR3N1/nnp3R1/1Qb5/PP2pqp1/Kb2Q3 b - - 0 1 illegal: No proof kernel
r1bk3r/4QB2/R1BPR1n1/2RN2b1/PrB3p1/pR1n2K1/1pp1q1QB/4N3 b - - 0 1 illegal: No proof kernel
N2br3/1kq3Q1/r1ppBBn1/N1R1Q2R/1nP4p/N2P3Q/pr5Q/N4b1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 a4 Nc6 axb5 Nb8 e4 f5 exf5 exf4 Kf2 a5 b4 h5 g4 f3 c4 c6 d3 a4 g6 a3 b6 Qc7 f6 Kd8 f7 Bd6 f8N Na6 g5 Nf6 g7 Nb8 g8Q Rh6 b7 Ra4 b5 Ra5 b6 Rb5 g6 Rg5 g7 Be5 Ne2 Rg1 Bg5 Bh2 Qc2 Be5 Qe6 Bf4 g8Q Na6 b8Q Rh7 b7 Rh6 Nc1 Nc5 Bh3 Na6 Nb3 Re1 Qg7 Nb4 Qf5 Re2+ Kg1 Re8 Qh2 f2+ Kg2 f1R Qg4 Qa5 Qe5 d6 b8N Qc7 Na6 a2 Nd7 Rhh8 Na3 Rb1 Ndc5 Rb2+ Kg1 Be6 Rb1 Kc8 Na1 Ng8 Bf6 Ne7 Ncb3 Kb7 Rf1 Bh6 Rf5 Ng6 Qf3 Bd2 Bg4 Be1 Qfh3 Bh4 Rg5 Bd5 Be6 Bg2 Rf5 Bf1 Rg5 Qd7 Nc7 Ra8 Rf5 Ra6 Na8 Qe7 Qef4 Re8 Rc5 Qc7 Qe5 Be2 Kg2 Bg5 Rg1 h4 Kh1 Bf1 Rg4 Bf4 Rg5 Bd2 Rh5 Bh6 Qg8 Bf8 Qh8 Be7 Qg7 Bd8 Na5+
BR1n3Q/b3KRr1/p3B1k1/R1p1r2p/1BN1n2B/5P2/3RNpP1/r1qb3Q b - - 0 1 illegal: No proof kernel
Q2N1r2/1N4Pp/2N1r1pn/BPK1bb2/R2B1p2/2Q2n1R/1kqN3p/1n3B1B b - - 0 1 illegal: Other
q6Q/1NpRB2Q/N3P1n1/RN1BP1N1/1pr1R3/rb2r1bR/4p1p1/3k1nK1 b - - 0 1 illegal: No proof kernel
1Nk2b2/1npP4/Np2qR1n/1Br1B3/K3p1pr/1Q2QRBr/N2P1Nb1/2B5 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 Ra5 Nc3 Ra7 Nb1 Ra8 f4 g5 a4 e5 h4 e4 c4 b3 f6 g4 f5 b2 a5 b6 f7+ Ke7 f6+ Ke6 h6 Bd6 f8N+ Ke5 f7 Ra7 c5 Be7 a6 Rb7 c6 Kd6 h5 Nf6 a7 Na6 a8Q Rg8 h7 Rg6 h8B Nd5 h6 Ndb4 h7 Rg7 Ne6 Qf8 Qb3 Rg5 Kd1 Qg7 f8N Nb8 Nc3 b1R Rh6 Ra5 Bb5 Nd3 Kc2 Na6 Rf6 Ne5 Ra3 Ra7 Na2 Qf7 Nc5+ Qe6 Nh3 Nf7 Nf2 Nh6 Bg7 Ra1 h8B Bb7 Qe3 Rb1 Qe8 Ra8 Qf7 Rb3 Nh7 Bf8 Ng5 Rd3 Qg8 Ke7 Rc3 Qe5 Qb3 Kd8 Nge6+ Kc8 Kb2 Ra4 Kc2 Rc4 Kb2 Qf5 Ka3 Qg6 Qf4 Rg3 Rf3 Rh3 Qfe3 Rc2 Ka4 Qe8 Nf4 Qe6 N4d3 Rc3 Ba3 Rc1 Ndb4 Rch1 Bc1 Rh4 R6f5 R1h3 Be5 Ra7 Bg3 Ra8 Rf6 Ra7 Ncd3 Ra8 Ka3 Nc5+ Na6 Ra7 Kb4 Ra8 Nb8 Ba6 Bg7 Nb7+ Nc5 Ra7 Ka4 Ra8 Be2 Bd3+ Nca6 Bc4 Bd1 Bf1 Be2 Bg2 Bb5 Bh1 Rf7 Ng8 Bc4 Rh7 B7e5 R7h4 R7f6 Bg2 Bf1 Nh6 Bc4 Na5 N6b4 Nb7+ Kb5 Ra4 N4a6 Bb4 Be2 Bf8 Bf1 Rc4 Be2 Rc3 Ka4 Rc2 Bb5 Rc5 cxd7+
NrN4r/1n5N/Bn3pBk/1b1R4/1p2qP1b/1KQqpN2/2p2RPB/1Q3B2 b - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 h4 g5 hxg5 Kd7 cxb5 Ke8 b4 axb4 d4 c5 Kd2 e5 Kc2 h5 a4 e4 b6 h4 a5 c4 a6 c3 a7 f6 b7 Kf7 d6 Kg7 d7 h3 d5 h2 d6 Rh4 g6 Rf4 Nf3 Qc7 d8N Qc6 d7 Be7 Nbd2 Qc5 Ng5 Kh6 g7 Rg4 Ra5 Rg3 Ndf7+ Kg6 d8N Qc4 Rd5 Qa6 Ndf3 Nh6 g8B Nd7 b8Q Qe2+ Kb3 c2 Bf4 e3 Qb1 Nf5 Nd6 Rh3 Nde6 Nb6 Qc7 Bd7 Nc8 Kh6 Bf7 Bb5 Qc3 Nd6 Nc7 Qd3 Bg6 Rb8 a8B Nb7 Bg3 Bf8 Nh7 Bd6 Rg1 h1Q Bh2 Nd8 Bc6 Bg3 Bb7 Bh4 Ba6 Nb7 Na8 Qe4 Ne1 Qd3 f4 Qe4 Nf3 Qd3 Be2 Qe4 Rc1 Qd1 Bf1 Qe2 Re1 Q2d3 Re2 Rg3 Bf5 Rg8 Bg6 Rh8 Rf2
KnB2R2/1r1N3Q/p4BR1/b1b1PR2/2rq1BNp/1p3kpn/QPq5/1R5B b - - 0 1 illegal: No possible last move
B3N1Q1/3p1NKP/N2Q2nQ/k1r1r2p/2R2qRb/1n1bp3/p1QP4/BN5q b - - 0 1 illegal: No proof kernel
n7/pQBp1kn1/P1R2BQ1/7r/PrN1R1q1/Bbp1Q2p/q3b3/1N2KQ1B b - - 0 1 illegal: No proof kernel
3Kb2r/qP2nk1n/1R2R1Bp/pR1Bp3/P1pb4/QnRB4/3B2Q1/2NN1b2 b - - 0 1 legal: proof: e4 b5 c4 bxc4 f4 a5 h4 d5 exd5 g5 hxg5 Be6 g4 Kd7 f5 Ra7 g6 Ke8 g7 Ra6 g5 Rb6 Rh2 Bc8 Rh1 Rg6 fxg6 Bb7 Ne2 Ba6 Ng1 Bc8 Kf2 f5 Ke3 e5 d4 c5 b4 f4+ Ke4 f3 a4 h6 d6 f2 Kd5 c3 b5 c2 b6 c4 b7 Nd7 Kc6 Be7 d5 Nf8 Bd3 f1B Nc3 Rh7 Rb1 Bch3 Nge2 Nd7 Bd2 c1N Qb3 Nb6 Qa3 Nd7 Rb5 Qa8 Kc7 Ngf6 g8Q+ Nf8 Rb6 Qa6 g7 Bd7 g6 Bdh3 Rg1 Na2 Rb5 Bfg2 Rc1 Bh1 Nd1 Be4 Rc3 Nd7 Kc8 Qb6 Nc1 Qe3 Kc7 Bh4 Kc8 Nc5+ d7+ Ke7 d6+ Kf6 Kc7 Bf3 d8R Rh8 d7 Bfg4 Re8 Bf2 d8R Nb3 Rd6+ Be6 Rc6 Nh7 Kd8 Qa7 Rcb6 Bg2 Re7 Bc6 Re8 Bh3 Qd5 Bg2 g8B Nb4 g7 Bf1 Bf7 Bd4 g8B Kg7 Qf3 Nd5 Bfg6 Bd7 Qg2 Bc6 Re6 Ne7 Rd6 Be8 Bd5 Kf8 Re6 Kg7 Bgf5+ Kf7 Bg6+
B5r1/b1Npqqr1/Qp4kN/pK2QP2/P3R1n1/2BB1p2/5R1Q/Q1nr2B1 b - - 0 1 illegal: No possible last move, all moves rejected
3B1nN1/1Q2NpN1/1N1qpB2/1B1p2B1/p2P3r/Pn2k2R/K1b4n/1Q3bqR b - - 1 2 illegal: No possible last move
Q3B3/Nb5N/B1ppKP1B/R3Bp2/b1Nb1pRq/2r3N1/2kQ1P2/3rq1n1 b - - 0 1 illegal: No proof kernel
2R1rN1K/nq1p1N1n/2rp1k2/1NPN4/Q1bP1r2/pB2Q1BR/2p2R1R/4q3 b - - 0 1 illegal: No proof kernel
6KB/1B2Q2n/N1Np2p1/PQp1n2R/2pqq3/1Q1rk3/2PRbBQ1/Bb2b3 b - - 0 1 illegal: No proof kernel
b6N/1p1p4/1n5P/pkN3K1/r2Q1B2/QPnR1BRp/2qn2q1/1B1rQB1Q b - - 0 1 illegal: Other
1kr2RN1/1B1npQ2/1p1q4/p6K/3BbB2/P1nq1N2/bPQ2pQR/1Bq3Q1 b - - 0 2 legal: proof: g4 a5 h4 g5 d4 gxh4 e4 d5 exd5 Bh6 c4 Bg7 f4 Bd7 f5 Bb5 g5 Bf6 c5 Kf8 d6 Bd7 d5 Bc8 d7 Be5 Bd2 Ra6 Bc1 Rg6 fxg6 Bd6 cxd6 Nh6 Qf3 Ng8 Qe2 Qe8 Qd1 Qd8 Ke2 c5 Kf3 f5 g7+ Kf7 g6+ Kf6 a3 Ke5 Ba6 h5 Nc3 h3 Qc2 h4 Ne4 f4 Kg4 f3 Rh2 c4 Nf6 c3 Bf4+ Kd4 Kg5 Kc5 Rf1 Kb6 Bd3 Qc7 d8B Ka7 d7 Qd6 Bb6+ Ka8 d8Q Nd7 Kg4 Kb8 Bd4 b6 Qg2 c2 Qf8 c1Q Bb1 Qe3 Qf7 Qd3 Kg5 Ba6 Kg4 Bc4 Qc2 Nh6+ Kh5 Rc8 g8Q Ng4 g7 Ba2 Qg2 Ne3 Rf2 Qc7 d6 Nd5 Qh7 Qc1 g8B Nc3 Qhg7 Qcd2 Bh7 Qd1 Be4 Qc1 Ng8 Qcd1 Rc2 f2+ Nf3 Qc1 Bb7 Qcd1 Rh1 h2 Qg1 h3 Q7g2 Nb5 Rc5 Nc3 Rf5 Qc1 Qfg6 Qcd1 Rf8 Qc1 Qf7 Qcd2 Qc1 Qd1 Qc2 Qc1 Re1 h1Q Rf1 Qh2 Rh1 Qhg1 Rh2 Qgd1 Rh1 h2 Qg1 Ne5 d7 Qd1d2 d8Q Qdd1 Bh6 Nd7 Qde8 Qd1d2 Qfg7 Qf4 Qef7 Qd6 Q1g2 Qdf1 Bf4 Qd3 Re1 h1B Re6 Qcf1 Rh6 Qc1 Qg1 Bg2 Rh8 Bh3 Q7g2 Bf5 Kg5 Bg6 Rh2 Be4 Kh5
4k1B1/Q1B1N2r/q1N1r2N/2P2bb1/1KnR1pp1/1Q3p2/PpRN1p2/2Qn1Q2 b - - 0 1 illegal: Other
3B1QQ1/p1P4B/pbbBRQpq/n1k3N1/B4Nn1/2r1p1R1/1Kp3P1/4nQ2 b - - 0 1 illegal: No possible last move, all moves rejected
K4R2/nBppBb1Q/3P1bp1/NnP3N1/4p2R/Q5np/Q1N2k1n/2rQ1N2 b - - 0 1 legal: proof: e4 a5 g4 b5 h4 e5 a4 g6 axb5 f6 g5 Ra6 h5 Qe7 h6 Qg7 hxg7 f5 f4 fxe4 f5 Rf6 gxf6 Na6 Ke2 Kf7 b4 h5 c4 h4 d4 e3 Kd3 a4 b6 e2 b5 a3 b7 a2 b8N Bd6 d5 Bf8 b6 Rh7 b7 Rh8 Nd2 Rh6 Nc6 Bb4 b8N Rh5 Ba3 Rh7 Na5 Bd6 Nh3 Be7 Bg2 Rh6 Nf1 Bb7 Nbc6 Nb8 Nb4 Nc6 Nc2 e1N+ Kc3 Bd8 Be7 Na7 Kb4 Nf3 Kc5 Nh2 Ng5+ Ke8 Rb1 a1N d6 Ba6 Bb7 e4 Rb3 Rh8 Rf3 Nh6 Rf2 Rf8 g8Q Nb3+ Kb4 Bb5 c5 Nd4 Qa2 Bc4 Rf4 Bf7 Qa3 Nhf3 Rh3 Nh2 Rhf3 h3 Rh4 Ne2 Ka4 Ng3 Rf2 Nc6 Kb5 Na7+ Ka6 N6g4 Qd4 Nb5 Qd1 Ne5 Rff4 Nd4 Ka7 Nec6+ Ka8 Nb5 Qa2 Nca7 Qa3 Ba2 Nh7 Kf7 Ng5+ Kg8 f7+ Kg7 Rhg4 Kh6 f6 Kh5 Rf5 Rg8 f8Q Bf7 Qg7 Rf8 Rgf4+ Ng4 Qa2 Kh4 Qh7+ Nh5 Nh2 Kg3 Nf1+ Kg2 Qa3 Nh2 Rh4 Ng3 Rd5 Bg8 f7 Kf2 Rd3 Re8 f8Q+ Bf7 Qfh8 Rf8 Qhb2 Rg8 Bf8 Bf6 Qba2 Rg7 Be7 Rg8+ Bd8 Re8 Rc3 Re5 Be7 Rf5 Rb3 Rf3 Rb1 Rc3 Rb3 Rc4 Rf3+ Kg1 Qd5 Bb2 Q2b3 Bg8 Nb4 Rc1 Rf8 Bf6 Qdd1 Bf7 Nc2 Kf2 Qba2
1rQ5/1qrB1RB1/2b2b2/1Q2QB1r/R1p5/1NPqbNqp/K1k2Q1P/1n3B1n b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 Kf7 Kc3 Ke6 Kb3 Kf5 f4 Ke4 c3 h5 e3 c5 b6 a5 b7 g5 f5 d5 e6 d4 e7 c4+ Ka2 a4 e8B a3 b4 h4 b5 h3 f6 d3 b6 d2 f7 g3 Qb3 d1R Be2 g2 Bh5 Kd3 e4 g4 e5 g3 e6 Nc6 b8Q Nd4 e7 Bd7 b7 Nf6 Bh6 Nf5 Bg7 Ne4 Bf3 Nd2 Qc8 Rh5 b8Q Bc6 Qe5 Rb8 Qbb7 Kc2 Be2 Qc7 Qb6 Qb7 Qbb5 Bf3 Bc6 Rf1 e8B Be7 Bd5 Bd8 Be6 Bc6 f8Q Rf4 Bg4 Rd4 Qfc5 Rd7 Be2 Rc7 B8d7 Bh4 Nf3 g1Q Ng5 Qf2 Rf1 g2 Qcd4 g1B Qde3 Nb3 Nd2 Ng3 Q3d4 Qg2 Rf7 Nh1 Bf1 Qg3 Ngf3 Bf6 Qde3 Bf2 Qe1 Be3 Qf2 Nc5 Bg4 Ne4 Nb3+ Nd2 Re1 Ba7 Ka1 Be3 Re7 a2 Bg2 Kd3 Re2 Nb1 Rf7 Bb6 Kb2 Be3 Rc2 Nd2 Ka3 a1Q+ Ra2 Qd1 Bf1+ Qe2 Ra1 Kc2 Bgf5+ Qd3 Ra2+ Kd1 Kb2 Nb1 Ka1 Qd5 Ra4 Qd3 Be2+ Kc2 Ka2 Bh6 Bf1+ Bd2 Qfe1 Be3 Qf2+
BR2n2k/2n2qbB/bQp1Q1br/4rBB1/2PpQ1n1/3P3N/KQ1Nq2b/4R3 b - - 0 1 legal: proof: f4 e5 h4 exf4 a4 g5 hxg5 b5 axb5 Qf6 Ra5 Qe7 Ra1 Qd8 g4 f5 c4 Kf7 b4 Kg7 e4 a5 e5 d5 e6 h5 g6 h4 b6 f3 g5 h3 b7 a4 e7 h2 e8Q a3 d3 f2+ Kd2 f4 Kc2 a2 Kb3 f3 b5 Qd7 b6 Rh6 Qe4 Bd6 Qde1 Ra5 Nh3 Kh8 Bg2 f1N Nd2 f2 Rb1 Na6 b8Q a1B b7 Bg7 Q1e3 Rc5 Ka2 d4 Qe6 Bg3 Q3e4 Ne3 Re1 f1Q Qa7 h1B b8Q Nf6 Qb2 Qf3 Qab6 Qe2 Bf3 Re5 Bg4 Qf7 Bf5 Bf8 g7+ Kg8 Qc2 Bh2 Rb5 Neg4 Qb2 Ne8 Rb4 Rg6 Rb3 Kh7 g8B+ Kh8 Bh7 Rh6 g6 Bb7 Nf3 Bg7 Bg5 Nc5 Nd2 Ba6 Qbc6 Bf3 Rb8 Bg2 Qcb6 Bf3 Qd7 Ne6 Qdc6 Ne3 Qd7 Bh5 Qdd6 Ng4 Qdd5 Nf4 Qde6 Nd5 Qe3 Bf8 Be4 Ndf6 Ba8 c6 Qe4 Nd5 Bg8 Qf5 Bf7 Ndc7 g7+ Kh7 g8B+ Kh8 Bg6 Bg7 B8h7 Qf7 Bf5 Bg6 Bf6 Rc5 Bd8 Re5 Bg5
1Q5K/3r1RnB/p2rnb2/1rp4R/PQP1b3/r1Q2q1R/1N4Nq/QqB1R2k b - - 0 1 illegal: No proof kernel
6N1/4N1B1/Br4qp/4pB1R/Q2qq1nP/2kNPnr1/b3bbNq/BQK2R2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 g4 Kd7 d4 Kd6 Kd2 f5 b4 e5 e3 c5 b6 a5 g5 a4 b7 f3 b5 h6 b6 a3 g6 a2 g7 c4 Na3 f4 Nh3 f2 Qa4 f3 Bb2 c3+ Kc1 c2 Ba6 f1B Nf4 f2 Ng2 Nf6 g8B Nc6 b8N Qe8 b7 Be7 Bh7 Qg6 Nd7 Ng4 Nf6 Be2 Ng8 Be6 b8N Qe4 Bf5 Bh4 Rb1 Ra7 Ba1 Rb7 h3 Rb6 Nc4+ Kc7 Nb2 Kd6 Rf1 Rh7 Rh1 Rg7 Rh2 Nd8 Nc6 Nf7 Nce7 Ng5 Rh1 Nf3 Rf1 Bd1 Rh1 f1Q Rh2 Qc4 Rh1 Qc6 Rh2 Kd7 d6 Bf2 d5 Be2 Rh1 Ngh2 Rf1 Rg3 h4 Ng4 Rg1 Ke8 d7+ Kf7 d6 Bd5 d8B Bb3 Bh7 Ke6 d7 Kd6 Bf5 Kc5 Bc7 Qg6 d8Q Bbc4 Qd1 Bf7 Bd8 Bd5 Qc6+ Kb4 Qa4+ Kc3 Nc6 Ngh2 Bf6 Ng4 Nce7 Ng5 Ne1 Nf3 Bg7 Bd3 Rg2 Ngh2 Nc4+ Rb2 Rg1 Rh3 Rg5 Ng4 Rh5 Rg3 Ng2 Nfh2 Nf4 Be6 Qh1 Qg2 Qg1 Qh3 Ng2 Nf3 Qd1 Qh2 Qg1 Be4 Qe1+ Kd3 Qeb4 Rb3 Bc3 a1Q Qb8 Rb2 Qbb3 Bf7 Qba2 Rb6 Bd4 Qc3 Qb2 Be6 Qbb4 Qd2+ Kb2 c1Q+ Ka1 Qcc2 Rf1 Bf7 Bb2 Qdc3 Ka2 Qd4 Ka3 Be6 Ba1 Bd5 Qb1 Be6 Nb2+ Kd2 Nd1 Bd3 Rh1 Bb5 Rg1 Qce4 Rf1 Qd8 Kb2 Bd5 Qba2 Be2+ Q2b3 Bdc4 Qbb4+ Kd3 Kc1 Qd4 Qb2 Qh7 Qba2 Qg6 Nb2+ Kc3 Qb1 Ba2 Nd3+
1R2B2K/1nB1rqpQ/1n3nB1/b2qpB1R/R1N1rkNn/1b4R1/4P1P1/1q1Q4 b - - 0 1 illegal: No proof kernel forced: bxLB
Q3b1n1/R2n3K/nQBbR2B/1q1rNR1p/r3rRp1/N5PP/2QQ1r1n/5k2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 b4 h5 g3 g5 b6 a5 d6 c5 d5 f3 b7 f2 b5 g4 h3 a4 d7 a3 Kf5 a2 b6 Na6 b8Q Bd6 b7 Qb6 Nf3 Qb5 Bg2 f1N e4 Nh2 e5 f6 Kg6 f5 d8R f4 e6 Bd7 e7 Be8+ Kg7 Rh6 Qc7 Re6 b8Q Re4 Kh7 Ra7 Qg1 Kd3 Na3 Ke2 Ne5 f3 Bh6 c4 Qgb6 c3 Rhf1 f2 Qa8 c2 Qcc5 c1R Qcc8 Rd1 Qc2+ Rd2 Rc8 Nb8 Rc4 Ra4 Rd4 Na6 Rc4 Bc6 e8R Bd7 Re6 Be8 Rab1 a1N Rb3 Re3 Rf4 Ree4 Rb2 Nb3 Ra2 Nbc5 Raa1 Bb8 d6 Bc7 d7 Bd6 d8Q Nd7 Rfb1 f1R Bh1 Rec4 Bc6 Rf2 Rf1 Re4 Qg5 Rg2 R1f3 Rf2 Ra2 Ke1 Rf5 Rdd4 Qgd2+ Kf1 R3f4 Rd5 Nac4 Rb4 Ra5 Ra4 Na3 Nab8 Ra7 Na6 Qdd4 Ne7 Qb4 Ng8 Qbd2
Qb1r3N/1pp3n1/p3b1K1/1P4N1/PR1rRr2/2qqQQBQ/1k1B2bB/4nB2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 g4 Kb4 d4 e5 a4 h5 f4 a6 g5 h3 d6 h2 d7 h4 g6 h3 g7 Qf6 d8Q Rh4 d5 Qg6 d6 Qf6 d7 Rh6 Qd4+ Kb3 Bd2 Bb4 Nc3 Qg5 f6 Qh4 Kf5 e4 f7 e3 f8Q e2 Qe3 e1Q Nf3 Be7 Nb5+ Kc2 b4 Rh7 Nd6 Kb2 b5 Nf6 g8Q Nh5 Rc1 Ng7+ Kg6 Qhg3+ Ng5 Nc6 f5 Nd4 f6 Nf3 f7 Rh4 Qh8 Rf4 Rc4 Rb8 Rg1 h1B Rg2 h2 Re2 Qa1 Qh3 Ne1 Qde8 Ra8 d8B Be6 Qc6 Rb8 Qcf3 Bg2 Qg8 h1R f8B Rg1 Nf7 Bc5 Nh8 Ba7 Bd6 Qc1 Bf6+ Qc3 Bfe5 Rd8 Qe8 Bb8 Qg8 Qf2 Qe8 Rd4 Bh2 Qh4 Bdg3 Qe4+ Qhf5 Qd5 Qh3 Rf4 Qe5 Qd3+ Ree4 Rd4 Qc5 Ba7 Qa8 Bb8 Be2 Rf1 Qe5 Rf2 Bf1 Rf8 Qef4 Rfd8 Q3e3 Rf3 Qfg4 Rf5 Qgf3 Rf4 Rb4+
4QK2/2n3pp/4kBbb/nRr2RPP/4B1Nn/1b1N2NQ/1p2N2B/1r1Bqn2 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 Ke2 Kd7 Kd3 e5 Ke4 c5 f4 b5 d4 c4 a4 b3 g4 c3 h4 b4 a5 b2 h5 b3 d6 c2 Kd5 e4 a6 e3 f6 e2 f5 e1N a7 Nf3 f7 Qe8 f6 Be7 f8Q Nh2 f7 Qd8 Nd2 b1B Ra5 b2 Rb5 Qe8 Qf3 Na6 Be2 Bg5 Ne4 Be7 Bf4 c1N Qh3 Rb8 a8B Nd3 Bd1 Ndc5 Ne2 Bd8 N4g3 Rb7 Rf1 Na4 Be5 Bc2 Rf5 Nh6 Qg8 Bg5 f8N+ Kd8 d7 Ke7 d8N N4c5 Nde6 Nb3 Nc5 Na5 Nfd7 Ra7 Nd3 Nf1 Nf6 Nc7+ Kc5 Bc1 Be4 Be6 d5 Bf7 d6+ Ke6 d7 Bb3 Qf8 Bg6 d8B Qe7+ Bd6 Bd2 Qe8 Rf8 Rf3 Nf5 Rf4 Nh4 Rf5 Bh6 g5 Ra8 Ng4 Rf7 Qf8 Qe8 Bf6 Rc8 Bde5 Qd7 Qe8+ Re7 Nb4 Qd2 Nd3 Qe1 Bd4 Rd8 Bg1 Rd4 Bh2 Ra4 Rb4 Ra1 Rb5 Rb1 Qh8 Kf7 Kd6 Re5 Kd7 Rc5 Kd8 Nd5 Qf8+ Ke6 Qf7+ Kd6 Ke8 Nc7+ Kf8 Na6 Qc7+ Ke6 Qb8 Nc7 Qe8+
k2nq1B1/p1p3n1/1r2p2B/rB2R1N1/2P1bb1r/Nn2P3/1KQ1Q3/rBNN3R b - - 0 1 illegal: No proof kernel
n2k1r1r/1pr2bp1/2Q1pQB1/1P2K3/nbRRb3/3Q1RNb/NR2q1P1/B4Q2 b - - 0 1 illegal: No possible last move
B2BQ3/NpK1bkr1/pP6/PbB5/b3N1qN/b1B3R1/1pN4n/r3RqQn b - - 0 1 illegal: No proof kernel
rNBqQ3/1q1R2p1/1N2q3/5rBk/pp2R1n1/P3NRq1/1PKR1b2/2NQ1b1n b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 hxg4 c4 d5 cxd5 Be6 Nf3 Bd7 Ng1 Bc8 f4 Kf7 h4 b5 d4 a5 Kd2 e5 a3 c5 f6 Kg6 f5+ Kh6 h5 e4 d6 g3 d7 a4 d5 g2 f7 c4 f6 e3+ Kc2 b4 d6 c3 Rh4 Ra7 Re4 Rc7 Ne2 g1Q Nd2 Qg4 Bh3 Qg3 Nc4 Ba6 Rb1 Kg5 h6 Rc5 h7 Nc6 Bf5 Be7 f8R Nh6 f7 Ng4 Be6 Rg8 h8Q Nce5 Bd2 Rb5 Nc1 Nf2 Bf5 Nh1 Be6 Qa8 d8N Qb7 d7 Bc5 Nc6 Ng4 d8R Kg6 Rd3 e2 Bc8 e1Q Bg5 Bf2 Ne3 Rf5 Rd7 Bf1 Nb8 Qe2+ Rd2 Qea6 Rfd8 Qe6 R8d7 Re8 Qg8 Kh5 f8N Rd8 Rf7 Re8 Nfd7 Rf8 Nb6 Re8 Ne2 Rf8 Rfd7 Re8 Kd3 c2 Ra1 c1Q Qf8 Rd8 Qe8+ Qg6 Rb1 Qcc7 Rc1 Qf7 Rc3 Qg6 Kc2 Qf7 Qf8 Qe6 Qg8 Rdf8 Nc1 Qd8 Rcd3 Ra5 Rc3 Rff5 Rb3 Ra8 Qe8+ Qf7 Ned5 Qg6 Rf3 Qf7 Ne3 Qg6 Rf7 Qe6 Rfd7+
KQB2rkR/n2Npq2/B2pB1n1/2pn2QQ/2PPN2Q/1p2BR2/1r5b/3r3b b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 a5 b4 axb4 hxg5 Ra5 Rh6 Ra7 Rh1 Ra8 Ke2 Kf7 Kf3 h5 Ke4 b5 Kd5 c5 d4 d6 a4 b3 g4 h4 f4 b4 a5 b2 a6 h3 f6 h2 g6+ Ke8 g7 Kf7 g5 b3 g6+ Ke8 a7 Rh3 f7+ Kd7 f5 Rh8 f6 Qc7 Ba6 Kd8 c4 Bd7 Qh5 Nc6 Nd2 b1N Ne4 Qb8 Nf3 Bg4 Ne5 Na3 Be3 Bf3 Raf1 Nb5 Nd7 Ne5 Rf2 Bg2 Rf3 Qc8 Qh4 Rb8 a8B Na7 B8b7 Ra8 Nb8 Qf5 Nd7 Rb8 Bc8 Rh6 Rhf1 h1R Rh3 Rh5 Rff3 Rd1 Rh2 Bh1 Rhh3 Nh6 g8Q Nhg4 g7 Qf4 Qh7 Ng6+ Qg5 Rh4 g8B Bg7 Qhh5 Bh8 Rh2 Rh3 Qhh4 Rg3 Qgh5 Rg2 Q4g5 Rb2 f8Q+ Kc7 f7 Be5 Qg7 Kd8 Qgh7 Qf6 Rh4 Bh2 Rhh3 Qg7 Qhh4 Qf8 Q7h5 Qe8 f8Q Ra8 Qfh6 Qf8 Qh7 Ke8 Be6 Qf7 Q7h6 Nb5 Kc6 Nf6 Kb7 Nd5 Qg2 Na7 Q6g5 Rc1 Qd2 Rg1 Qb4 Rd1 Nb8 Kf8 Nd7+ Kg8 Qb6 Nb5 Qc7 Ra7+ Kb8 Rb7+ Ka8 Na7 Qb6 Rc7 Nf8 Rd7 Qb8 Rd8 Nd7 Rf8 Qhg3 Nf4 Qhg4 Kg7 Rh8 Nd5 Q5h5 Nf4 Qgg5 Nd5 Rh7+ Kg8 Q3h4 Rd3 Rh6 Rd1 Rh8+
2r1R3/r1R1Bn1q/B3kR2/p2nN1p1/Kb1B1p2/PQ6/1pRr1Pbn/QB1N4 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 Kd2 Ke7 Kc3 a5 Kb3 d5 h4 b5 c4 f5 e4 g3 h5 g6 h6 f4 h7 d4 e6 d3 c6 g2 e5 d2 c7 b4 c5 Bg7 c6 Bb7 c8B Ra7 c7 Qe8 Rh5 Bc6 Rf5 g5 Bd3 Bd7 Ba3 Qd8 Nf3 g1R Nc3 Re1 Bca6 Nc6 c8R Bf8 Bb1 Re2 Ka4 Nf6 Rc7 Ng4 Qb3 Nh2 Nd1 Rg8 h8B Qe8 Kb5 Qg6 Ka4 Qh7 Bg7 Ke8 e7 Nd8+ Rc6 Bc8 Rc2 Kd7 e8R Nf7 e6+ Kd6 e7 Bb7 Ne5 Bg2 Bf6 Rh8 Bb2 Rg8 a3 Rh8 Qe3 b3 Bd4 Ke6 Rc7 Rg8 Ra2 Rh8 Rac2 b2 Rd8 Rg8 e8Q+ Be7 Qb5 Bb4 Be7 Rf8 Re8 Rh8 Nc3 d1N Qc1 Ne3 Nd1 Nd5 Qc4 Rg8 Qb3 Rd2 Ba2 Rg6 Qa1 Rh6 Bb1 Rh3 Rb7 Rc3 Rd7 Rc8 Rb7 Nd6 Rbc7 Nf7 Rf6#
Kbb2B1B/pnqp1N2/2pP1RN1/R1r5/4R3/RQ1qB2q/Q1Pr3p/4nBk1 b - - 0 1 legal: proof: a4 e5 f4 exf4 h4 g5 hxg5 b5 axb5 Ba6 Rh6 Bb7 Rh1 Bc8 Rh3 Ke7 g4 Kd6 Bg2 Kc5 d4+ Kc4 Kd2 f5 b4 h5 e4 c6 b6 h4 b5 f3 e5 f2 b7 f1Q b6 f4 e6 f3 d5 Kd4 e7 f2 e8R Qc4 g6 f1Q g5 Na6 b8B Qf7 b7 Qa2 g7 Rh6 g6 Qf2+ Ne2+ Kc4 Nc3 Qff6 Nf4 Kd4 Nb5+ Kc5 Bf1 Ne7 g8R Qe6 Kc3 Nf5 g7 Qb6 Ng6 Rh8 Be5 Rb8 Qf3 Bd6 Rgf8 Nb4 g8Q Qaa6 Qg3 Rh5 Bh8 Nd3 Rf6 Ne1 Ra4 Bf4 Nd6 Rg5 Qd3 Rg2 Re7 Qe3 Ree4 Qf3 Rg3 h3 Qe6 h2 Nf7 Rf2 Rg5 Qe3 Ra3 Nd6 Bd2 Qh3 Rgf5 Ra8 b8B Qd8 Bc7 Rb8 Ba5 Rb5 Bb4+ Kb6 Kd4 Nb7 Bf8 Bg3 Bf4 Rd2 Ke5 Ra5 Qc3 Qd3 Qa1 Nc5 Kd6 Kb5 Ree5 Kc4 Qa2+ Kd4 Rg5 Qe8 Kc7 Nb7 Kb8 Qd8 Rh5 Rb5 Ka8 Qa5 B4h6 Qb6 Re3 Bb8 d6 Qc7 Qeb3 Rd5 Ref3 Ke4 R3f4+ Ke3 Bg5 Rf5 Rfh4+ Kf2 Re4 Kg1 Bgh6 Rff2 Rc5 Rf5 Rca5 Rc5 Be3+
1K1QBB2/pbRp1b2/1r1R2nk/r1NQ3p/1Q2Bp1P/qb5B/P1n5/b1QN4 b - - 0 1 legal: proof: d4 e5 dxe5 g5 f4 gxf4 b4 c5 bxc5 Qc7 Nd2 Qb6 Nb1 Qd8 Kf2 f5 Kf3 Kf7 g4 Kg7 c4 b5 e4 h5 h4 b4 e6 b3 e7 b2 e8B Kh7 c6 Nh6 e5 Na6 c5 Rb8 g5 Kg7 e6 Rb4 g6 Rb5 e7 Bb7 Nc3 b1B Qe1 Qb8 Ba3 Qd8 Ne4 Nf7 c7 Nb4 c8Q Nd6 c6 Qc7 Nh3 Qb8 c7 Na6 Qd8 Qa8 c8Q Ra5 Qcc1 Nf7 Qb4 Bc8 Nf2 Bb7 Bh3 Rh6 Rd1 Nh8 Rd6 Bc2 Nd1 Bb3 Bf7 Qc8 e8B Qc5 Bd5 Be7 Rb1 Bf6 Rb2 Bc3 Rc2 Ba1 Rc3 Qd4 Rc7 Qb2 Nc5 Qc3+ Kf2 f3 Kg3 f2+ Kf4 f1B Bf3 Bfc4 Be4 Kg8 g7 Kh7 Rd5 Rd6 g8Q+ Kh6 Qf7 Rf6 Rd6 Qd3 Qd5 Rg6 Qbc3 Nb4 Q3d2 Nc2 Qb4 Nd4 Ke5+ f4 Re6 Nc2+ Kd6 Bg7 Rc6 Qe3 Kc7 Ba1 Kb8 Rf6 Rc7 Ng6 Rd6 Qg3 Qc6 Bf7 Qd5 Qd3 Bb2 Re6 Bf6 Qg3 Ra6 Rb6 Be7 Rbb5 Re6 Rb6 Rd6 Qc3 Qd3 Qb2 Qd5 Qa3 Bf8+
N2R2K1/1Rr1p2p/B1pN3Q/2NNb2Q/3B2kP/r2bP2n/pn2p2B/3rBq2 b - - 0 1 illegal: No proof kernel
q7/1Q6/n2NPK1R/1r2p1p1/2b2Qr1/1QB2Q2/3QP1Nk/Nq2BB2 b - - 0 1 illegal: No possible last move
1N1r4/R2r1NrQ/q1Nq1Bb1/2Pp4/5p2/QkN2P1n/4BbQ1/1NB4K b - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 dxe5 Be7 a4 Bd6 axb5 Bf8 g4 a5 Ra4 h5 gxh5 Na6 Rb4 axb4 bxa6 Qh4 Nc3 Qe7 Nb1 Qd8 e4 Ke7 c4 Ke6 h4 f5 c6 g5 f3 d5 Kf2 g4 Kg2 g3 h6 f4 a7 b3 h7 b2 c7 Bd7 c8N Be7 h5 Bc5 h6 Ne7 Qd3 Rg8 h8N Qa5 h7 Qc3 Be2 Rg7 Nf7 Bd4 h8B Qe1 c5 Be3 Rh7 Nf5 Ne7 Rd8 a8Q Nh6 Kh1 Qa5 Nc6 Bf2 Qb7 Qa2 Qa3 Be8 Qc7 Rd7 Qca7 Rg8 Bf6 Ng4 Qb7 Qc4 Qba7 Qa6 Rg7 Rb7 Rh7 Kd7 e6+ Kc7 e5 Rh8 Nd2 b1Q e7 Qbb6 e6 Rg8 Nb1 Rg7 Nfe5 Bg6 Nb8 Qd6 e8Q Rd7 e7 Rd8 Qa8 Ra7 Qg8 Rb7 Nbc6 Ra7 Nf7 Kd7 e8N Ke6 Rg7 Rad7 Qa7 Kf5 Kg2 Ke6 Nc7+ Kf5 Kh3 g2 Nb5 Rc7 Ng5 Bh7 Nb8 Bh4 Bc4 Nf2+ Kh2 Nh3 N5c3 Bf2 Nge2 g1R Rd7 Rg4 Kh1 Rg2 Be7 Ke5 Nd4 Rg3 Be2 Bf5 Nc2 Rb7 Nb4 Kd4 Qg6 Bd3 N4c6+ Kc4 Bf6 Rg2 Nf7 Rg5 Nh6 Rg3 Rf7 Re7 Qd7 Rg4 Qh7 Rg7 Qg4 Rb7 Qg2 Rc7 Qa5 Kb3 Rd7 Bg6 Nf7 Rb7 Rc7 Rb4 Ra7 Rb7 Qa1 Rbd7 Qa3+
1Q1Q2N1/bN2K1Bn/2B1Q1Rb/1Q2rBr1/2P1N1bq/1b5k/2Pn2q1/2r3Q1 b - - 0 1 legal: proof: e4 f5 exf5 c5 a4 b5 axb5 c4 d3 Qc7 dxc4 Qd8 f4 g5 fxg6 h6 f5 h5 b4 Na6 g4 Rh7 g5 Nb8 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 a5 Kg3 d5 Kf4 Kd7 Ke5 d4 h4 e6 h5 d3 f6 g3 h6 d2 g7 a4 b6 g2 g6 a3 b5 a2 b7 a1Q+ Bb2 Ra5 f7 Qa2 h7 Qh4 Ne2 g1B Na3 Nf6 g8B Na6 b8Q Nc5 g7 Nce4 Ng3 Ba7 Bh3 Ke7 Rg1 Bd7 Qf1 d1B Bf5 Nd2 Ne4 Bg4 Rg3 Qa1 Qg1 Qf1 Ba1 Qg2 Qbb6 Bh5 Rg6 Bg4 Qbe3 Be8 Qc5+ Kd7 b6 Rb5 b7 Rb1 b8Q Rc1 Qa5 Ke7 Qab6 Ba4 Nb5 Bb3 Nbd6 Kd7 Kd4 Ke7 Kc5 e5 Nf2 e4 Nb7 e3 Ne4 e2 Kc6 e1R Qb5 Qgf2 Ng5 Qg2+ Be4 Bd7+ Kc7 Bh3 Bc6 Qh6 Bd4 Re4 Bc3 Rg4 Ne4 Ke6 Be5 Kf5 Kd8 Qg5 Qd6 Rg3 Bb2+ Kg4 Qde5 Bd6 Bc3 Bc7+ Ke7 Bcb6 f8Q Be3 Qd8 Kh4 Be6 Re8+ Kf7 Bf4 Bf5 Re6 h8Q+ Nh7 Qdb8 Qg4 g8N Bh6 Ne7 Qf4 Qed5 Rg5 Bg7 Re5 Qhd8 Qff2 Ng8 Bg4 Qe6 Kh3 Ke8 Qh4 Ke7
bK2N3/Q2Qb1B1/r2B2P1/P1N1Bqq1/r2Bn1q1/4bBRQ/nk1N4/1b6 b - - 0 1 illegal: No possible last move
R1b1B1rQ/1PB1Q1q1/KB3q1n/5R2/Q4B2/rPb3Rq/4Nq2/1nBkn3 b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 h5 g5 g6 Na3 Bh6 Nc4 Bg7 Ne5 Bh6 fxg6 Bf8 Ng4 hxg4 f5 Qd6 Ra6 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 h4 Ke4 d4 e5 b6 a5 Kb5 c5 d6 c4 g7 c3 f6 g3 b7 c2 d7 g2 d5 a4 g6 a3 f7 a2 d6 Qe7 d8B Na6 d7 Qd6 h5 Nb4 h6 Nd5 h7 Ra3 Bb6 Qf6 d8B Nh6 g8R Bb4 f8Q Bc3 Ne2 Kf3 g7 g1Q Qe7 e4 Rh5 e3 Bdc7 Qg4 b3 Qh3 Qd4 Kf2 Qdb4 Ke1 Qa4 Kd1 Ka6 Qf2 Rg5 Qf6 Rf8 Rg8 h8B Qf2 Rg3 Qf6 Bd2+ c1Q Bf4 Qb1 Bc1 Qbf5 Bc7 Qf2 Rf7 Rd8 g8Q Re8 Qh7 Rg8 Bg2 Qg7 Rf5 Qf6 Bf3 Qg7 Bh5 Qf6 Rb1 a1Q Be8 Qb2 Ra1 Qg7 Ng1 e2 B7f4 e1N Ne2 Ba5 Ra2 Nc3 Ra1 Qf6 Bg7 Bb4 Qh8 Nb1 Bc7 Bc3 B7f4 Qg5 Bge5 Qg7 Ra2 Qd4 Bec7 Qdf6 Ra1 Qd2 Ra2 Qdd4 Ra1 Qf2 Qa5 Ra2 Kb5 Rd2 Qab4 Rb2 Ra8 Ra2 Qa4 Ra3 Ka6
8/rPQB3Q/q1B1n1rk/2n3rP/1K2N3/NN5q/1b3q1B/1QQbRQq1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 fxg5 h6 g6 h5 b4 Bb7 g4 Bc6 g5 Bd7 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 d4 e5 Kd2 c5 Kc3 a5 h4 e4 f6 c4 b6 g3 g7 Kf7 b5 Kg6 f7 e3 h5+ Kh7 b7 a4 d6 a3 d5 g2 g6+ Kh6 b6 a2 d7 a1R d6 R8a5 Nf3 g1Q Nd4 Qc7 d8Q R5a4 d7 Qd6 Na3 Ne7 g8B Ra7 g7 Nf5 Qc7 Na6 d8N Nc5 Nb3 Nd4 b8Q Bg4 Kb4 c3 Nb7 c2 Bg2 Nde6 Bc6 Ra6 Bh7 Rg8 Bf5 Ra5 Bb2 c1Q Be5 e2 Bh2 Qce3 Qc1 Qd3 Nd6 Qa6 Ne4 e1Q+ Ned2 Q1e2 Ne4 Qef2 Qbb7 Bd6 f8Q Be5 Qbb8 Bd1 Qbb7 Qgg2 Re1 Bb2 Bg4 Qfg1 Qf1 Qh3 Bf5 Na4 Bg4 Rg5 Bf5 Qef2 Qbb8 Rh8 g8Q Nac5 Qgf7 Rg8 Qbb7 Nf8 Bfd7 Nfe6 Qf5 Rg6 Qa7 Qad3 b7 Qd6 Qaa6 Ra2 Qad3 Ra1 Qdb1 Qdd3 Nc4 Ra7 Na3 Qde2 Qf7 Qa6 Qh7+
N1q1r1kB/KB2q2N/Q1Q1qn1n/1q2b2Q/7b/2BP1R2/P1b2N2/1B2B2n b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 g5 h5 f5 b5 Na3 Ra6 Rb1 Bb7 Rb4 Bc8 Rg4 Rf6 gxf6 hxg4 Ke2 c5 Ke3 e5 h4 g5 d6 e4 h5 c4 Kd4 c3 Kc5 c2 a6 g3 a7 g2 a8B g4 h6 b4 h7 e3 Nh3 g1N Nb5 b3 Nf2 e2 Rh3 e1B Bb7 g3 Bd3 g2 Nc7 b2 Kb6 b1Q+ Bb2 c1Q Rf3 Nh3 Ka7 g1Q Bc3 Qg4 Na8 Bh6 f8Q Bf4 f7 Be5 f6 Ke6 d7 Qe7 d8Q Nh6 Qde8 Qb5 Bb1 Nd7 Qa4 Rg8 h8B Qgc4 Qa6+ Qcc6 Nd3 Bh4 Nf2 Qc2 Qg7 Qg6 f8B Qf7 Ne4 Nf2 Qh7 Nh1 Nf2 Qg6 f7 Nf6 Bfg7 Bd7 Qc8 Re8 f8N+ Kf7 d3 Bg4 Qd7 Qc8 Be1 Qf5 Qc7 Qfe6 Qcc6 Bh5 Qg6+ Kg8 Nh7 Bg4 Re3 Bf3 Qh5 Bd1 Rf3 Bc2 Bf8 Qed8 Bfb4 Qde7 Bbc3
6Q1/R3R2r/1QrNr1bk/4B2R/BQPnnr2/n2n3P/QbrQ4/3K2B1 b - - 0 1 legal: proof: d4 c5 dxc5 b5 f4 f5 a4 h6 axb5 Nf6 g4 Rg8 gxf5 Rh8 e4 Rh7 e5 Nc6 Nc3 Qb6 Ne4 Rh8 Ng5 Ng8 f6 hxg5 f5 g4 f7+ Kd8 Rb1 Nb8 Ra1 Qf6 exf6 Bb7 Qd5 Ba6 Qd1 Bc8 c4 g5 b4 e5 b6 d5 c6 a5 h3 d4 b7 g3 b5 g4 b6 e4 Ne2 d3 Rg1 a4 Nd4 e3 Qc2 e2 Ra2 a3 Bf4 g2 Ra1 a2 Qc1 g3 Bg5 Bg7 Nb5 Ra6 Be3 Rh7 c7+ Kd7 f8B Ke8 Bd6 Nc6 b8R Kf7 b7 Rb6 Kd2 e1R Be2 Ra6 Rh1 g1R Bd1 g2 Qc3 Be6 c8Q Rgf1 Qb3 g1N Qd8 Ne5 Rc8 Bd5 b8Q Be4 Rc5 Rc6 Qbb6 Ne2 Rh2 Rf3 Bg1 Rf4 Bc7 Bh8 Qd5+ Kf8 f7 Kg7 f6+ Kh6 f8Q+ Bg7 Qa8 Bg6 f7 Nf6 Qb4 Bh8 f8Q+ Bg7 Rb1 a1N Qfg8 Nc2 Ra1 Bh8 Qg2 Bg7 Qad8 Bh8 Ra6 Na3 Ba4 Rc1 Ra7 Rc3 Kd1 d2 Qd3 Bg7 Qdb1 Rc2 Qa2 Nd3 Rf5 Nec1 Bd6 Nb3 Ke2 Bh8 Qgf2 Bg7 Qe1 d1R+ Qed2 Rf1 Bc7 Rf3 Kd1 Re3 Re2 Re8 Ree5 Ne4 Re6 Ba1 Be5 Bb2 Nd6 Nd4 Rg5 Ref8 Rf5 Rf6 Ree7 Re6 Rh5+
N1K3Q1/Q5R1/n1B4B/n2p1rbr/1N1QqP2/1BbQ1P2/1k2brq1/2Q3N1 b - - 0 1 legal: proof: b4 b5 a4 f5 g4 a5 d4 c5 dxc5 h5 gxh5 f4 e3 Kf7 exf4 Bb7 Ra2 Ke8 Rb2 Bg2 axb5 Bb7 b6 Ba6 b5 Bc8 Rb4 axb4 Kd2 Kf7 Ke3 Kf6 Kd4 d5 c4 g5 c6 g4 Kc5 g3 c7 b3 h6 g2 h7 b2 b7 e5+ Kb6 e4 c5 e3 c6 e2 Na3 b1Q Qd3 e1R Nc4 Na6 b8N Nb4 Na6 Be6 Kb7 Ne7 c8B Re4 c7 Bg8 b6 Bg7 Bd7 Re6 c8Q Bh6 Bc6 Bg5 Be2 Qd6 Bd1 Re5 Bb3 Bf7 Qc7 Rhf8 h8Q+ Ke6 Qg8 Rf5 Bd2 Kf6 Be3 Bh5 Bc1 Be2 Qc8 Nc2 Nb4 Qa2 Bd2 Qe6 Kc7 Ra4 b7 Qe4 b8Q Qb2 Qa7 Ra1 Bca4 Nc6 Nb6 Na5 Na8 Rf1 Be8 Rf7+ Kd8 Rh7 Bc6 Rh5 Qcc7 Qa2 Kc8 Qb2 Be3 Qa2 Bc5 Qb2 Bf8 Qa2 Bh6 Qb2 Na2 Nb4 h4 Na6 Nb4 Qc2 Nh3 g1B f3 Bd4 Rh2 Rf2 Ng1 Bc3 Rg2 Qa2 Qcb6 Qc2 Qbe3 Qb2 Qc1 Qc2 Qf8+ Ke6 Qg8+ Kd6 Bg7 Rh8 h5 Qb2 h6 Qd2 Qb7 Kc5 h7 Qb2 Bh6 Qa2 Qdb1 Kd4 Qb8 Bh4 Rg7 Bg5 Bd1 Qb2 Qa7+ Kc4 Qbc2 Qa2 Q2d2 Qac2 Qd3+ Kb3 Qce3 Ka3 Qed4 Qa2 Bb3 Kb2 Q4c4 Qb1 Qcc5 Qf1 Qcd4 Qg2 Q4e3 Ka3 Qc1+ Bb2 Rg6 Qg4 Bf8 Qg3 Qgg7 Qg2 Qgd4 Rg8 h8Q Rg7 Q3e3 Rh7 Qg8 Rh8 Qed3 Rh5 Qcd1 Bc3 Bh6 Kb2 Rg7 Nc7 Qe1 Na6 Qc1+
1k2bn1q/2bQ2NN/PnB5/2n2r2/2BP3r/1b2Q2p/1B1K2Rq/1Q1BB2N b - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 f5 c4 g5 e4 d5 exf5 g4 cxd5 g3 hxg3 Kf7 g4 Bg7 g5 Ke8 Ra2 Bh6 Rb2 Bf8 Rb4 cxb4 f4 Kd7 g4 Kc7 d4 h5 g6 b5 g7 e5 a6 e4 g5 e3 a5 b3 d6+ Kc6 a7 Kb7 f6 h4 g6 h3 f5 b4 d7 b2 f7 e2 f6 b3 a6+ Kc7 Nd2 b1Q Rh2 b2 Ndf3 Nh6 g8B Rh7 g7 Qe4 Rg2 b1B Nh4 Ba2 Kd2 e1N Bc4 Qg4 Ne2 Qg6 Ng3 Nf5 Nh1 Nd3 Bb2 Nd6 Nf5 Nc5 Qb1 Rh4 Be2 Bb3 Bd1 Be7 f8B Qg3 Bc4 Qh2 g8Q Qe8 f7 Bd8 Bh6 Qf8 Qg4 Qh8 f8N Bb7 Qg6 Nc8 Qe8 Nb6 Qe3 Bd5 Bg5 Bf7 Nh7 Be8 Bf6 Nc6 Be7 Ne5 Ng7 Ng6 Bf6 Rb8 a8B Nf8 Bc6 Rc8 Bg5 Kb8 Bf4+ Bc7 d8Q Nfe6 Qd6 Nf8 Bg3 Rd8 Qde7 Rd5 Be1 Rf5 Qd7
n2R1qRQ/1BQ4p/1B1bnPr1/5rrQ/1b1B1Q1K/qkPQ4/8/q3RN2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 g4 Nh6 f5 Na6 Nc3 Nb8 Nce2 Bb7 Nf4 gxf4 g5 Bf3 h3 Bg4 hxg4 Ng8 Kf2 Kf7 b4 a5 g6+ Ke8 g7 Kf7 b6 e5 g5 d5 b7 e4 b5 d4 c6 d3 c7 d2 c8Q f3 Kg3 e3 b6 a4 Qd7+ Ne7 g8R f2 Bb2 a3 Qd3 e2 Bg2 f1R Bd4 a2 Nf3 Nc8 Kh4 Nd7 b8B Ra6 b7 Ncb6 Nh2 Nc5 Ba7 Ne6 b8Q Bd6 Bb7 Na8 Bab6 Qf8 Qc8 Rf2 Nf1 e1B Q1e2 Ra5 Rd1 a1Q Qd8 Qa3 Qc7+ Qe7 Rg1 Rc5 Rd8 Rg8 Qh5+ Rg6 Ra1 d1Q Rg3 Bb4 c3 Qda4 Re1 Qad7 Rg4 Qf8 Rg2 Kg8 Rg1 Qda4 Rg4 Re5 f7+ Kg7 Rg2 Qa1 Rg3 Q4a3 Rg4 Rh6 g6 Kf6 g7 Rg6 Rg1 Rfg2 g8Q R2g5 Be3 Rb5 Rg2 Ke5 Bed4+ Kf4 f6 Rbc5 Qh8 Rcf5 Be3+ Ke5 Rg4 Qg7 f8Q Qg8 Qfh6 Qe8 Bc8 Qf8 Bed4+ Kd5 Rg2 Rg3 Qf4 R3g5 Rg1 Rh6 Rg3 Rg7 Qdd2 Rg8 Qb8 Kc4 Bb7 Kb3 Qc7 Rg7 Qd3 Rg8 Rge3 Rg2 Rg3 Rg1 Rg7 Rhg6 Rg8 R1g4+ Kh3 R4g5 Kh4
q1QQ1N2/5PB1/3N2K1/2n2rQ1/n1NBP1N1/5rnp/4Nkb1/qR3Bbq b - - 0 1 legal: proof: e4 b5 a4 d5 axb5 e5 c4 g5 cxd5 f5 b4 f4 h4 Bg7 hxg5 Bf8 Ra3 Bf5 d4 Bc8 Re3 fxe3 dxe5 Ba6 Qd2 Bb7 Qd1 Bc8 Ke2 Kd7 Kf3 a5 Kg4 h5+ Kf5 c5 g4 e2 f4 e1Q e6+ Kd6 g6 h4 g7 c4 g5 c3 b6 h3 g6 a4 b5 Kc5 d6 a3 b7 c2 b6 a2 d7 a1Q e7 Qa6 e8N Bd6 Qd2 Bf8 Bb2 c1N Na3 Rh7 Nc4 Nc6 b8N Nb4 b7 Ne2 Ned6 Nf6 g8Q Nc3 g7 Rh5+ Kg6 Na4 f5 Nd3 Ne2 Qda5 d8Q Be7 Nc3 Kd4 Qg5 Ndc5 Nd7 Rb8 Qe6 Qa8 Nf8 Bd7 g8N Bb5 Nh6 Q5a6 Nd2 Be2 Qec8 Bf3 Ng4 Bg2 Ne3 Qa1 Rg1 Qb5 Ba3 Qbb1 N2c4 Qd1 Ne2+ Kd3 Qdc7 Bd8 Q7d7 Bb6 Bb2 Qdc1 Qcd8 Rc8 b8B Rc7 Q7e8 Rf7 Bd4 Ba7 Ne5+ Kd2 Qed7 Ke1 N5c4 Kf2 Qc6 Nd5 f6 Ndc3 Qcc8 Qcb1 Nc1 Ne2 Rh1 Ng3 Ne2 Rh4 Bc7 Rf4 Ba5 Rf3 Bac3 Rh7 f7 Rh5 Bg7 Qe1 Bcd4 Qed1 Qgf6 Rhf5 Qg5 Bb8 Nb7 Bf4 Nbd6 Nh5 Rg1 Bh1 Bg2 Bh2 Qc6 Ng3 Qcc8 Qdb1 Rd1 Qc1 Rd3 Qg1 Bf1 Bg2 Rd1 Qh1 Rb1 Bg1 Ng4#
2Q2r2/2PbQ2N/4Nn2/b3RPK1/3k1Bp1/1bq3qq/1nBNQ2B/2N1r1N1 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f4 g5 fxg6 h6 f5 h5 g4 Bg7 b4 Qc7 g5 Qd8 Ra3 Bh6 Rg3 Bf8 Rg4 hxg4 Ke2 d5 Ke3 Kd7 Kf4 a5 h4 a4 c4 e6 c6+ Kd6 c7 a3 g7 a2 h5 a1Q b6 d4 h6 d3 b7 d2 c5+ Kd5 b5 Ra7 c6 Bb4 h7 Ra6 g6 Ra4 b6 Ra7 Bd3 Bf8 Bc2 Qd7 Qe2 d1B Kg5 e5 Nd2 Nh6 g8Q+ Qe6 g7 e4 Qf7 e3 g8N Nd7 b8N Kd4 b7 Qb3 Na6 Nf6 b8B Bb4 Qe7 Bd7 c8Q Qac3 Nc5 Ra1 Bh2 Ba5 c7 Rb1 Nd3 Nf7+ Kh4 Nd6 Kg5 Nfe8 Nf6 Rf8 h8N Nc4 Nf7 Nb2 Nh7 Nf6 Nd8 Ra1 Qg2 e2 Qf3 e1Q Qfe2 Qg3 Ne6+ Kd5 Ndf3 Kc4 Bf4 Qa3 Nc1+ Kd5 Bd3 Bb3 Bc2 Qh3 Nd2 Qhg3 Nd3 Re1 Nc1 Qh3 Ngf3 Qg3 Rf1 Qh3 Ng1 Qcg3 Rf3 Qb4 Re3 Qc3 Nc5 Kd4 Re4+ Kd5 Re5+ Kd4 Ne6+
3bb3/rnP1pRn1/2B1P2N/1K1Nr2Q/2r4B/4Qrq1/3QBNkB/3b3B b - - 0 1 illegal: No possible last move
1R1Q1bRr/3P2qN/bQ1nN3/2N3B1/N1n3P1/Nb1K4/qp5k/2rQR1b1 b - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 h4 f5 exf5 c6 hxg5 d4 Bb5 d3 cxd3 cxb5 d4 Be6 d5 Bc8 Ke2 Kf7 g4 e5 d4 h5 a4 b6 f4 b4 a6 b3 f6 Kg6 f7 b2 f5+ Kh7 a5 e4 d6 e3 f6 Kg6 d5 b5 a7 b4 d7 h4 d6 h3 a6 h2 Kd3 e2 Nh3 e1B Nf2 b3 Ne4 Bf2 Nc5 Nh6 Na3 Qe7 d8Q Bg1 d7 Nc6 Qb6 Nf5 Rb1 Nd6 Bd2 Rb8 a8Q Na5 a7 Nac4 Bf4 Bb7 Bc1 Re8 Qad8 Ba6 a8N Qe5 Qb7 Re6 Nb6 Re7 Nba4 Re8 Qa5 Rc8 Qd8 Rc6 Be3 Rc8 Qbb6 Rc6 Rc1 b1Q+ Rc2 Qa2 Rb2 Bf2 Rf1 h1B Re1 Bd5 Bf4 Bg1 Rb1 Bh6 Bd2 Qe7 Rb2 Qf8 Bf4 Qg7 f8N+ Kf7 Nh7 Kg6 f7 Rc7 Rh2 b2 f8N+ Kf7 Rh5 Na5+ Qb5 Qg6+ Ne4 Bb3 Be3 Rc1 Ne6 Bf8 Bf4 Nac4 Qb4 Qf6 g6+ Kg8 g7 Kf7 g8R Qg7 Rb5 Kg6 Be5 Kh6 Rb8 Kg6 Qbb6 Kh6 Ne4c5 Kg6 Nf4+ Kh6 Nf6 Kg5 Nfe6+ Kh4 Bf4 Kh3 Bg5 Kh2 Nh7
4q2q/r4B2/N1RBQN1P/1n5N/2n4k/BNnr2rP/1bpN1K2/1Qq3Q1 b - - 0 1 legal: proof: h4 b5 a4 f5 axb5 h5 c4 d5 cxd5 f4 b4 Bh3 gxh3 f3 exf3 Qd6 f4 Qd8 f5 Kd7 Ra3 Ke8 Rg3 Nd7 Rg2 Nb8 Rg4 hxg4 f4 Kf7 d4 Kf6 b6 e5 d6 c5 b7 a5 d7 g5 b5 g3 h5 g4 d5 a4 h6 c4 d6 c3 b6 e4 Ne2 e3 Nd2 a3 Nd4 e2 N4b3 g2 Kf2 e1R Bc4 g1N Bf7 a2 Ba3 Qe8 d8N a1Q d7 Ne2 Ne6 Nc6 b8Q Bg7 d8Q+ Nge7 b7 Rg1 Qd5 Rg3 Qg1 Ng6 Qe4 Ncd4 Qeb1 Nb5 Qd6 Nbd4 b8N Nb5 Na6 Ne5 Qd7 Rh7 Qd5 Bh8 Ng7 Rd8 Qc4 Rd6 Qc8 Nc4 Nh5+ Ke7 Rh2 c2 Rg2 Bb2 f6+ Kf8 f5 Nec3 Qe6 Rg7 Bg6 Re7 f7 Ra7 Qd5 Ke7 f8N Qa8 Bf7 Qe8 Nf4 Kf6 Nd7+ Kg5 f6+ Kh4 Qe6 Rdd3 Bd6 Qa5 Nh5 Qad8 Ba3 Rge3 Rg3 Qh8 Rf3 Qde8 Rf5 Rg3 Rc5 Rge3 Rc6 g3+ Kf1 g2+ Kf2 Bc1 Bg6 Rg3 f7 Bb2 f8B Qe7 Ndf6 Qf7 Qgf1 Qe8 Bfd6 g1Q+ Ke1 Qc5 Qg1 Qg5 Bf7 Qf4 Nf1 Qg5 Kf2 Qc1 Nfd2
1QR3Q1/2n2QK1/Qn2P3/2NPrqp1/4RBr1/q4N2/2qkrRN1/3n1b1Q b - - 0 1 illegal: No possible last move
B1q1Bb2/Rb4Nq/1r1PQ1p1/QN1q1Pn1/2r1N3/1kB3B1/B6p/1Kn1Q3 b - - 0 1 illegal: No possible last move
3Q1n2/Kb1Q2Rp/2P3RP/Q1n2b2/2k2q1Q/pBB1Q1bR/4rN2/1rq4B b - - 0 1 legal: proof: d4 c5 e4 e5 dxe5 b5 b4 Qc7 bxc5 Kd8 a4 Ke8 axb5 Qd8 f4 g5 f5 f6 Nc3 Ba6 Nd5 Bc8 exf6 Nc6 e5 Nb8 Nf4 gxf4 Kf2 Kf7 g4 d5 h4 a5 c4 f3 Ke3 f2 Kd4 a4 b6 a3 b7 Ra6 g5 Qd6 g6+ Ke8 f7+ Ke7 f6+ Ke6 c6 Ne7 g7 Ra4 g8B Qb4 h5 Bh6 f8Q+ Kf5 f7 Ke6 c7 Qb1 Kc5 d4 Qg4+ Qf5 Kb6 d3 c5 Kd5 e6 d2 c6 d1B Nh3 Qc2 Bd2 Bd7 c8Q Be2 Bg2+ Qe4 Bc3 f1Q Qh4 Qff3 Qfd8 Ra5 f8Q Qc4 Nf2 Ng6 Rag1 Rb5+ Ka7 Na6 b8R Bf4 h6 Bg3 Rh3 Rb1 Qa5+ Nc5 Qfd8 Nf8 Bh1 Qf4 Rb7 Kc4 Qcc7 Qe3 e7+ Be6 e8Q Qc1 Bf7 Bg4 Qe5 Bf5 Qed7 Rg8 Qe3 Rg7 Bg8 Re7 Qd6 Re8 Rf7 Bc8 Rg7+ Re6 Q6d7 Bb7 Bf7 Qd1 Bh5 Qc1 Bd1 Bh2 R1g6 Bg3 Qf3 Re1 Qe3 Re2 Bb3+
2rr2Q1/1RbP1Bp1/KPN1q2B/6Q1/Q2n2B1/1RRRn3/n2p2R1/1bk1q3 b - - 0 1 illegal: No possible last move, all moves rejected
3Q4/2q1BR2/6K1/2n2p2/Br1b1BRR/2Nk1P1R/PQ1p1q2/bnQn1qR1 b - - 0 1 legal: proof: c4 e5 b4 d5 cxd5 a5 bxa5 Nf6 d6 Ng8 d4 Qg5 g4 Qf6 d5 Be7 g5 Bf8 Nc3 Qe7 Nb5 Qd8 Nd4 exd4 Nf3 f5 Qb3 Ra6 Qb1 Rb6 Ng1 Rb3 Qd3 b6 Qd1 b5 Qc2 Rh3 Qd2 Rh6 Qd1 Rf6 gxf6 Bd7 Bf4 Be6 Bc1 Bc8 h3 g5 Bb2 g4 Qd3 g3 Bc1 Be6 Qd1 Bf7 Be3 Bh5 Bc1 Bg4 hxg4 Qe7 Ba3 Qd7 Bc1 Qd8 Kd2 Kd7 e4 h5 f3 c5 e5 b4 g5 d3 Ke3 g2 Kf4 b3 a6 h4 a7 c4 a8R c3 g6 c2 Kg5 b2 g7 b1N Ne2 g1B Ra4 h3 Rh4 h2 Bf4 c1Q Kg6 d2 f7 Bb6 Nc3 Nh6 g8R Bg7 f8R Bd4 Rf7+ Qe7 Bc4 Na6 Bb3 Nc5 Qf1 Qc2 Qc1 Ng4 Rh3 Qd3 Ba4+ Qb5 Rg1 Ne3 Rg4 h1Q Rgh4 Bf6 Rgg7 Nd1 e6+ Ke8 Qb2 Qc7 e7 Kd7 Qc1 Qh2 Qb2 Kc8 e8Q+ Kb7 d7 Ka6 d8B Qf1 d6 Qhf2 d7 Ka5 Qc1 Kb4 Qe5 Kc4 Be7 Rb8 d8Q Kd3 Rg8 Bh8 Qf6 Bg7 Qb6 Bf6 Qbb2 Bh8 Kh7 Rb3 Rgg4 Rb4 Kg6 Qh1 Rfh7 Na3 Ne4 Nc3 Qg1 Qhg2 Rd1 Nab1 Rf7 Bg7 Qa3 Qh1 Nd6 Bdf6 Qe1 Qhg2 Qe5 Bh8 Rg1 Qgf1 Qc1 Nd1 Qa1 Bc3 Ne4+ Bhd4 Qab2 Ke2 Qb3 Ba1 Nc3+ Kd3 Qbb2
kN3b2/1r4Q1/P2rRn2/qP3n1Q/1R1p2B1/B2p3K/r1Bq1R1R/Qn5R b - - 0 1 illegal: No proof kernel
n2QNq1Q/B2P4/1BpBr3/P1r2rQB/1n4RK/B4b2/1n4p1/N2k1q1N b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 d5 cxd5 a4 f4 a3 f6 Nc6 g3 Na5 bxa3 Nc6 a4 Nb8 a5 Ra7 Bh3 Ra6 Bf1 Ra8 a4 h5 f5 e6 Ra3 Bc5 Rd3 Bf8 Rd4 Bd6 Rg4 Bf4 gxf4 hxg4 Kf2 Kd7 Kg3 Kd6 h4 Kc5 d4+ Kb4 h5 g5 f7 b5 f8Q+ Qd6 f6 e5 f7 e4 h6 e3 h7 c6 a6 e2 a5 e1N a7 Bb7 Nd2 Kc3 Qh6 b4 f8B b3 Ba3 b2 Nh3 b1R Be2 Nf6 Nf2 Rb2 Nb3 Nbd7 Rh4 Nd3 Na1 Bc8 Nh1 Rb5 Qg6 Qb8 d6 Nd5 f5 Nb2 f6 Rc5 f7 Nb4 d5 Nb6 Qf5 Rg8 h8Q+ Rg7 Qf4 Bf5 d7 Be4 d8B Bf3 d6 Rf5 Kh2 g3+ Kh3 g2 Rg4 g1Q Bfe7 Rc5 f8B Qf1+ Kg3 Qc8 Qf5 Rb8 a8N Rb7 Nc7 Na8 Qdd5 Rbb5 Ne8 Qb8 Qdg8 Kd2 Bb6 Rg6 Ba7 Qc8 d7 Re6 Bd6 Qd8 Qff6 Qe7 Bg7 Qf8 Qd8 Rf5 Bgd4 Rbc5 Rf4 g4 Kh4 g3 Rg4 g2 Qgg5+ Ke1 Bg1 Rce5 Bgb6 Rc5 Bd3 Kd1 Be4 Rf7 Bg6 Rff5 Bh5
b3N3/Q1P1Q1n1/4bp2/1qR3Bn/BkpB4/1r1P1n2/Nq3Q2/QQb1NK2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Nf6 b4 Ng8 bxc5 b4 c4 a5 c6 d5 c5 Ra7 Ra2 Re7 Rc2 Rb7 Rc4 Rb5 axb5 dxc4 h4 Ke7 e4 g5 h6 g4 h5 b3 d3 b2 c7 a4 e6 a3 h7 a2 e5 a1Q b6 g3 b7 g2 h6 Qa7 c6 Na6 b8Q Bg7 Rh5 Qc5 Bg5+ Bf6 Nf3 g1N Bg2 Qcd4 Qa7 Qe8 Nc3 b1B Kf1 Bc2 Ne1 Nf3 Qb1 Nc5 Bh3 Bd7 c8Q Ba4 c7 Bac6 Qcb7 Bd5 Q7b2 Ba8 Qf2 Qb8 Bf5 Qb5 Be4 Bc8 Bc6 Bd7 Nd1 Qdb2 Nc3 Q5b4 Ba4 Qb5 Bf4 Bh4 Bc1 Nf6 Bg5 Rg8 h8B Rb8 h7 Bg3 Bg7 Bf4 h8Q Bc1 Qc8 Ne4 Qca6 Nd6 Qa5 Nf5 Bh8 Ke8 e7 Be6 Q5a6 Kd7 e8N Ng7 Qa5 Bg4 e6+ Kc6 e7 Bf5 Bd1 Bc8 Qaa1 Be6 Ba4 Rb6 Qfc2 Kc5 Qh2 Kb4 Qf2 Nf5 Bg7 Ng4 Bd4 Nf6 Nd6 Rb8 e8Q Ng7 Qe7 Rb7 Bge3 Rb8 Rc5 Nfh5 Bg5 f6 Ne8 Rb6 Bd1 Ra6 Bc2 Ra3 Ba4 Rb3 Na2+
2bK1Br1/qNn1Q3/k4n1b/2QB1P2/b1NbN1pQ/2P5/Q3BRp1/2Qb4 b - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 h5 a4 f5 axb5 c5 g4 a5 d4 f4 dxc5 Ra6 Ra3 Rah6 Rg3 Rf6 Rg2 Rf5 gxf5 Be7 Rg3 Bf8 Rg4 hxg4 Kd2 d5 Kd3 Kd7 Kd4 Kc7 e4 Kb7 h4 g5 c6+ Ka7 h5 g3 c3 g4 e6 g2 Ke5 a4 c7 f3 b6+ Kb7 e7 d4 e8B d3 h6 f2 b5 a3 h7 d2 Nf3 a2 Be2 f1B Ng5 a1B Bf7 Na6 Ba3 Nb4 Qc1 d1B Nd2 Nc2 Nc4 Bd7 c8N Bb4 Bd5+ Bc6 Ke6 Nh6 e5 Bb2 N8d6+ Ka8 b7+ Ka7 b6+ Ka6 b8Q Nf7 b7 Bc5 Qc7 Ba1 b8Q Ba4 Nb7 Rg8 h8Q Nb4 Qh4 Nh6 Ne4 Bd4 Qc5 Qa5 Ke7 Bb2 e6 Qb6 Qbf4 Qa7 Qb1 Bc1 Qa2 Bce3 Rh3 Bc1 Rf3 Bce3 Rf2 Bd2 Bc6 Nd5+ Kd7 Nc7 e7 B2e3 e8Q Bd2 Bd3 Bfe2 Kd8 Bf3 Be2 B2e3 Ned2 Bd5 Ne4 Be6 Qfg5 Bc8 Bd5 Rg7 Qcf8 Ng8 Bd6 Nf6 Qc6+ Qb6 Qc5 Qa7 Qe8 Bd2 Bf8 Rg8 Qee7 Bf4 Qgg7 Bh6 Qgg5 Nh5 Qgd2 Nf6 Qc1
4r1B1/2Nn3R/nr2b1r1/KRNQp1kQ/3qP2R/n3n3/1p2PN1Q/Q4Q2 b - - 0 1 legal: proof: c4 c5 g4 h5 gxh5 a5 b4 d5 cxd5 e6 bxa5 Be7 Ba3 Bg5 Bb4 Be3 fxe3 cxb4 h4 Ke7 a4 Kf6 d4 g5 Kd2 b5 a6 g4 d6 e5 e4 b3 Kc3 b2 Kb4 g3 h6 g2 h5 Qe8 a7 Qd7 d5 Rh7 a5 Qe6 a6 Qd7 Nd2 b1N Ka5 b4 Rh4 b3 Nh3 g1N Nf2 b2 Bh3 Rh8 h7 Qc6 d7 Na3 d8Q+ Ne7 h6 Bg4 d6 Qd7 Qf1 Re8 h8Q+ Kg6 h7 f5 Nb3 f4 Nc5 f3 Qf8 Bf5 h8R Nd5 R8h7 Nb6 Qc8 Qd8 d7 Kg5 Rd1 Re6 Rd5 Rg6 Qc7 Be6 Qcd6 Qe7 d8Q N6d7 Qh8 Qf6 Qd8f8 Qf7 Bf5 Nh3 Qc6 Nf4 Qa4 Nb5 Qaa1 Ng2 Bh3 Ne3 Bg4 Rh6 Bh5 Qe7 Bf7 Na3 Bg8 Qd6 Qf4+ Kg6 Qh2 Kg5 Qg7+ Rg6 Qf7 Nec2 Nb7 Ne3 Rb5 Qd4 Nc5 Nb6 Nd1 f2 Qf8 N8d7 Qf3 Re8 a8Q Nb8 a7 N6d7 Qd5 Na6 a8N Rf8 Q1h1 f1R Nc7 Re8 Nf2 Rc1 Qf1 Rc2 Nb3 Rc6 Nc5 Rb6 Qh5+
1Bb4Q/2N1r1R1/nk1RP1n1/1B2B3/KR1Qp3/2P1R3/p2Qbbb1/1q3Rn1 b - - 0 1 illegal: No possible last move
Q3q2Q/7p/n4B2/2RB1pbr/2PrR3/5PKb/R1B1N2r/RRbQ2kr b - - 0 1 illegal: No possible last move
1b1R1rk1/p2QbRPQ/bqBR1B2/P6b/NB3rp1/3B4/1bBK4/5b1Q b - - 0 1 legal: proof: f4 d5 e4 c5 exd5 f5 b4 Qd6 bxc5 Qd7 g4 Qd6 Nc3 Qd8 Ne4 fxe4 h4 g6 f5 Na6 g5 Nc7 Kf2 Ne6 Ke1 Nf6 gxf6 g5 Bc4 g4 Bf1 Ng5 hxg5 Qc7 Bd3 Qa5 Bf1 Qd8 c4 Kf7 a4 h5 d4 b5 g6+ Kg8 a5 e5 c6 h4 c5 e3 g7 e4 d6 h3 d7 h2 d5 b4 c7 e2 c6 b3 d6 b2 f7+ Kh7 f6 b1B Bg5 Ba2 Kd2 Ba6 c8B Bd3 c7 Be6 Bb7 Be7 f8Q Qc8 d8Q Ba2 f7 Ba6 d7 Bd5 Bc6 Qb8 c8B Qb6 Bf6 Bb3 Qfe8 Rf8 Ra4 Bc2 Rd4 Bb1 Rd6 e1B+ Kc1 e3 Ne2 Bh4 Nc3 e2 Kd2 Bg6 Na4 Bg3 Qc7 Rb8 d8R Bh5 Qcd7 Be5 Rg1 h1B Rg3 Bd5 Rf3 Bb2 Rf4 Bg2 Qe1 Rh8 f8B Kg8 Qg6 Bh3 B8b7 Rc8 Be4 Rc4 Bc2 Re4 Rf3 Rf4 Bc6 Bg2 Qh4 Bh3 Qgf5 Bg2 Qh1 e1B+ Kd1 Bg3 Kd2 Bh2 Bfd3 Bf1 Qh7+ Kf7 Qh6 Rf5 Rd5 Bb8 Be5 Rg8 Qh7 Rf6 Qdf5 Bed6 Be7 Rh8 Qd7 Rf8 Bc3 Bc5 Bb4 Rf5 Bg5+ Be7 Rd6 Rf6 Qe4 Kg8 Bh4 Rg6 Rf7 Rf6 Bg5 Rf3 Bf6 Rf4 Qh7+
3R4/1Q1RB1B1/rQp3p1/3r4/k2nbpP1/Q1qnP3/N1R4R/R1nKbB2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 c4 b5 a4 d5 axb5 h4 cxd5 e4 Nc3 e3 Ne4 Na6 Ng3 hxg3 fxe3 Rh5 e4 Nb8 e5 Rh8 d4 Kd7 h4 f5 e6+ Kd6 b6 g6 b7 f4 a6 c6 a7 g2 h5 Kc7 d6+ Kb6 d5 Kb5 h6 Qf6 d7 Qf7 d8R Bd6 h7 Qf5 e7 Be5 e8R Bg7 d6 Bh6 d7 Bg7 Ba3 Na6 Qb1+ Ka4 b8Q Qf6 Rh2 Qc3+ Kd1 Nh6 Q1b6 Nb4 Q8b7 Nf5 e3 Rf8 h8B Nd3 Re7 Nd4 Ne2 g1N Nc1 Nge2 Na2 Rf5 Bd6 Be5 Bg7 Nec1 Rc2 Bf6 Rh8 Bh4 d8R Be1 Rhh2 Rd5 Rc7 Bf5 Rcd7 Be4 Be7 Ra5 Rdh8 Rd8 a8Q Ra6 Rg8 Rf8 Qaa7 Rf5 Rgd8 Rg5 Qb2 Rc5 Qab6 Rd5 Qa3+
b4nQ1/1P4BN/1r1p4/p1QPB2K/1r2Q3/N1NQ4/2bp1nRQ/kB3qb1 b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 f5 exf5 e5 d4 g5 h4 b4 hxg5 b3 a4 b2 d5 Nf6 Rh4 Ng8 Rd4 exd4 Ra3 Qf6 Rh3 Qb6 Rh1 Qb5 Na3 b1Q axb5 Qa1 Nb1 Qa5+ Bd2 Qc7 Bc1 Qd8 Ke2 Ke7 Kf3 h5 c4 a5 g4 d6 g6 Kf6 g7 Ke5 f6 h4 b6 d3 f7 Kd4 g5 h3 c6 h2 g6 Qe7 c7 Bd7 c8Q Rh6 c5 Qe6 c6 Qe7 c7 Qg5 Bb2+ Kc4 Na3+ Kb4 Qe8 Qc1 c8Q Qd2 Ne2 Qc1 Rg1 Qc2 Qc5+ Kb3 Bh3 Ka2 Bf5 h1B+ Kg4 Qc1 f4 Be7 f8N Bg5 Nh7 Bc6 Bf6 Bg2 Nc3+ Ka1 Qd2 Bf1 Qh2 d2 Bb1 Bd3 f5 Be3 Rg2 Bg1 Qee3 Bc2 Qd3 Nd7 Kg5 Rd8 Be5 Qf1 f6 Rf8 f7 Rb8 f8B Ngf6 g8Q Bb3 g7 Ba8 Qf7 Ne4+ Kg4 Bc2 g8Q Nf2+ Kg5 Rb7 Bfg7 Rh4 Qfg6 Rb4 Qge4 Nf8 Kh4 Ra7 b7 Ra6 Kg5 Rab6 Kh5
1nR1b1R1/BB1P4/1K1p1B2/2Q1p1qQ/3P4/q1rr4/2RBBnp1/1Q2q1kN b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 h5 axb5 h4 d6 h3 gxh3 Nc6 h4 Nb8 h5 Ba6 Qg4 Bb7 Qd1 Bc8 f4 e6 d7+ Ke7 f5 Bb7 Na3 Ba6 Nc4 Bc8 Nd6 cxd6 Nf3 Kf6 Ng1 Kg5 f6 Be7 fxe7 Kf6 Ke2 Kg5 Kd3 Kh4 Kc4 f5 e8Q a5 b4 g5 d4 a4 b6 g4 Kb5 g3 c4 e5 b7 f4 h6 a3 h7 a2 c5 g2 c6 f3 c7 f2 Ne2 Kh3 Bd2 Nc6 b8R Ra5+ Kb6 Nge7 b5 Rg8 h8Q+ Kg4 h4 Kf3 h5 Bb7 h6 Ba6 h7 Rg6 Rc8 Nb4 Rc1 a1Q Rc2 Rg3 Qb1 Nd3 Qhg8 Qa2 h8B Qa3 Bf6 Nc6 Qc4 Nb8 Rh8 Bb7 Qc5 Bd5 Rf8 Bf7 Rg8 Bh5 Qf7 Ra8 Qh7 Be8 Qf7 Rh3 Ng3 Ra4 Qg6 Rc4 Nh1 Rc3 Qh6 Qe7 Qg6 Qg7 Qf7 Qg5 Be2+ Ke4 Qh5 f1Q Rd8 Qfc1 c8B Nf2 Ba6 Qe1 Rc8 Rhe3 Bb7+ Kf4 Kc7 Rd3 b6 Rc3 Ba8 Rd3 b7 Rc3 Kb6 Ke4 Bd8 Red3 Bf6 Ng4 Bf1 Kf3 Nf2 Nc6 b8B Kg3 Ba7 Nb8 Qg6 Kh2 Nh1 Kg1 Qh5 Nf2 Be2 Qe3 Be4 Qg5 Bb7
1R1n1N2/2r2BQb/p1k2B1r/R2QpRPB/8/R2KQ2p/rPn4b/1R1b4 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 h4 Bd7 g4 Bg7 h5 Bh6 Nc3 Bf8 Nce2 Bc8 Nf4 gxf4 g5 Qd7 Qg4 Qe6+ Qe2 Qf7 Qd1 Qg6 hxg6 Kd8 Rh6 Kd7 Rh1 Ke8 Ke2 Kd7 d4 h5 d6 c5 b6 e6 d5 f3+ Kd3 h4 b7 h3 f7 f2 f6 a6 g7 Rh4 Be2 f1B Qb3 Rh6 Be3 Ra7 Nf3 Rh4 Ra3 Nc6 b8R Nce7 Nd4 Nh6 g8B Ng4 Qc3 Bg7 f8R Rh6 f7 Be5 Bf2 Bg2 Rb1 Ne3 Bh5 Bh2 Qe1 Nc2 Qe3 Bf3 Rb5 Nc6 Rba5 Ne7 Be1 Rc7 Bc3 Bb7 Rb8 Bg4 f8Q Nc6 Bgf7 Nd8 Qg7 Bc8 Nb3 Bd1 Bf6 e5 Nd4 Bb7 Ne6 Bc8 Rb4 Bb7 Rf4 Bc8 Rf5 c4+ Kd2 c3+ Kd3 Bb7 Nf8+ Kc8 Rb5 Ba8 Rc5 Kb7 d7 Kb6 d6 Bd5 Rca5+ Kc6 Bfg6 Bg8 Be8 Bh7 Bef7 Na1 Bfg6 c2 Bf7 Nb7 d8R c1R Ra8 Nd8 d7 Rc4 Rb8 Ra4 Rab3 Ra2 Rba3 Nb7 d8Q Nc2 Qdd4 Nd8 Qd5#
4Q1r1/1r1qP2N/1rN2K2/1Bp3Rb/1BrP1NNp/1pQ1Q1nk/3B2N1/6n1 b - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 g5 a4 Qf6 h4 Qa6 b4 Bf5 bxa5 Kd7 g4 Qc4 Ra3 Qc5 Rf3 Qd6 Rf4 gxf4 g5 Ke8 g6 Bc8 Kf2 Be7 Ke1 Bg5 hxg5 Qd8 Kf2 Kd7 Kf3 b5 Ke4 c5 Kf5 h5 d4 b4 e4 b3 g7 f3 e6+ Kd6 g6 h4 a6 f2 a7 f6 e5+ Ke7 a5 Qe8 d6+ Kd8 d7 Ke7 a6 Rh7 Nh3 Nc6 Bd2 Rb8 a8Q Bb7 a7 Qf7 d8B+ Ke8 e7 Kd7 e8N Rh6 e6+ Kc8 Qe2 Ne5 Rg1 Bf3 Na3 Qd7 Rg5 Bh5 Qaf3 Rb7 Qc3 Nf3 Nc2 Ng1 Ne1 Rh8 Ng2 Nh6+ Kf4 f5 Ke5 f4 g8N f3 g7 Rb6 Nef6 Nf5 Qee3 Ng3 Bb5 f1R Nhf4 f2 Nh7 Rc1 Kf6 f1R Nh6 Rg8 Ng4 Rb7 Ba5 Rc2 Qcd3 Rc4 Bab4 Ra1 Qc3 Ra6 a8Q+ Kc7 Ne5 Kd6 e7 Rab6 Qc8 Rd8 g8N Re8 Nh6 Rg8 Ne6 Kd5 Qf2 Ke4 Qe8 Be2 Nc6 Bd1 Qa1 Bh5 Qfe1+ Kf3 Ng4 Nh1 Qe4+ Kg3 Qb2 Kh3 Qc3+ Ng3 Qe2 Rg7 Qee3 Rg8 Nef4#
1b1bBBB1/1Np5/7R/3n1q2/Q2KQ3/3pn1BP/2p1P1Nk/Qr1NBbb1 b - - 0 1 illegal: No proof kernel
1RR1br2/1B3n2/1Q3K1N/1kpBpp2/3B1BR1/3r2P1/Qb1B2nP/Q1n3n1 b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 g5 a4 h5 axb5 h4 d4 c6 e4 h3 d6 Na6 e5 Nb8 d5 Bh6 Na3 Kf8 e6 Kg7 Nb1 Qd7 exd7 Kg6 Nd2 Bg7 Nc4 Bf8 Ne3 Ba6 fxg5 Bb7 g3 Bc8 Ng2 hxg2 Kf2 Kf5 Kf3 Ke5 Kg4 a5 b4 e6 d8B f6 g6 a4 g7 f5+ Kg5 a3 b6 a2 b5 Ra7 d7 Kd6 b7 Kc5 b6 Ra5 d6 Ra4 Nf3 g1N Bf6 Rh6 d8Q Ra5 d7 Ne7 g8B Rb5 Ne5 Kb4 Ng4 Nd5 Bg2 Rh8 Nh6 Bg7 Bd4 Ne3 Bd2+ Kc4 Qb1 Rb3 Qf6 Rd3 d8Q Nd7 b8R Ne5 b7 Bd7 Qdb6 Be8 Rc8 c5 b8B Nf7+ Kg6 Bd7 Bb7 Be8 Bf4 Ng2 Qe5 Bf6 Q1b2 Bg7 Rf1 a1N Qa2+ Nb3 Ra1 Ne2 Rhb1 Ng1 Rb2 Bf6 Re1 Bg7 Re4 Bf6 Bfe3 Bg7 Rg4 Bf6 Bf4 Bg7 Bh7 Rf8 Bg8 Bf6 Qe1 Bh8 Qea1 Bg7 Bf2 Bc3 Bd4 e5 Qc7 Kb4 Kf6 Kb5 Rb1 Bb2 Qd6 Nc1 Qb8 Nd6+ Bf7 Rh8 Bfd5 Nf7 Qd6 Rf8 Qe6 Ra3 Qb6+ Ka4 Qe6 Bc3 Ba6 Ka5 Rb4 Bb2 Rbb8+ Ka4 Bab7 Kb5 Qd6 Rd3 Qb6+
2Q3R1/b1PK2n1/2Np1Nqk/pn1Q1Rrp/q3Q2P/B1Q5/N1R2p1Q/3r4 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 c5 dxe5 c4 f3 c3 bxc3 Qc7 c4 Qb6 c5 Qd8 e4 g6 e6 Ba6 e5 Bb7 Bd3 Bd5 Bf5 Be4 fxe4 gxf5 Kf2 a5 Ke3 h5 Kd4 f6 Kd5 f4 c4 f3 h4 f2 g4 f1Q b6 f5 g5 f4 c6 f3 c5 Qe1 e7 Kf7 Kd6 Kg6 e6 Kg7 b7 Kh7 e5 Qb4 c7 Qb5 c8Q Qe8 c6 Qa4 g6+ Kg7 Ra2 Nf6 Ne2 Ng8 Rf1 Qg4 Rc2 Qg1 Nbc3 Qe3 Nd4 Qd3 Ba3 Ra6 Na2 Kh6 g7 Nf6 g8R Ra7 c7 Qb5 Nc6 Qg6 Qd5 Ra6 Rff2 Bg7 e8N Qa4 e7 Rb6 e6 Rb1 Rf1 Rd1 Rff2 Rh7 Rf1 Bf8 Rff2 Rg7 Rf1 Na6 b8Q Nc5 Qb2 Nb3 Qc3 Nd4 Rff2 Qf7 Rf1 Rg5 Rff2 Qg6 Rf1 Ng4 Nf6 Ne3 Rff2 Bg7 e8Q Nb5+ Ke7 d6 Kd7 Bh8 e7 Nf5 Qf8+ Ng7 e8Q Rd4 Qee4 Rd1 Rg2 f2 Qfe8 Qb4 Q8e5 Qa4 Qh2 Nf5 Ne8 Bd4 Nf6 Ng7 Rg3 Be3 Rf3 Ba7 Rf5
2B2bN1/1Kp1p1b1/Q2qqp2/1bRNQpN1/N1QP3k/5P1n/R2Nn3/3R4 b - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 b5 a4 Bg4 axb5 Bc8 e3 Ra7 d6 Ra6 d5 Rc6 g4 h5 h4 Rh6 g5 Rh8 g6 Rc4 Bd2 Rg4 Bc3 Rf4 Bf6 Rd4 exd4 gxf6 g7 Rh6 Qd3 Rg6 Qd1 Rg5 hxg5 Bb7 Qc2 Ba6 Qd1 Bc8 Ke2 a4 Kd3 a3 Ke4 a2 b4 h4 b6 h3 g6 h2 f3 Nh6 g8Q Bg4 b5 Qc8 g7 Kd8 b7 Nd7 b8R Ne5 b6 Be6 b7 Nc6 Nd2 Ng4 Nh3 Nb4 Qa4 Na6 Ng5 Ne5 Bh3 Ng4 Rhd1 Nb4 Qa6 h1Q Qh8 Qg2 g8N Qf1 Rac1 a1B Ra8 Qf2 b8Q Ke8 Rc5 Qg3 Qbb5+ Bd7 Qc4 Bb5 Qh5 Bg7 d7+ Kf8 d8N Nd3 d6 Nc1 Kd5 Bc3 d7 Nf2 Ra7 Ne2 Nc6 Qf4 Be6 Nh3 d8N f5 Nb7 f6 Nb4 Bb2 Qg4 Bc1 Bd7 Qg3 Qe4 Qh2 Qe5 Qg3 Ne6+ Kf7 Ng5+ Kg6 Ra8 Kh5 Be6 Be8 Bd7 Kh4 Kc6 Qe1 Nd5 Qd8 Na5 Bf8 Kb7 Bg7 Bc8 Bb5 Nab3 Qd6 Nde4 Be3 Nbd2 Bf8 Nec3 Bg7 Nh7 Beh6 Ng5 Bf8 Na4 Bhg7 Qc6 Qg3 Ra5 Qe6 Qa6 Qh2 Nab6 Qf4 Ra2 Qh2 Na4 Qg3 Qe3 Qgd6 Qe5
N4Q2/RNQ4k/p1BQR1n1/P1p3K1/r3pp2/2Qr2Np/1r2R1PQ/b6b b - - 0 1 illegal: No proof kernel
2qbN3/Kn1r3R/N3Qp1P/3b4/2BNnB1b/kn1Q1P1N/2b2Q2/rrBN4 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e5 d4 Nf6 b4 Qd7 d6 Ng8 d5 Qe7 Ra2 Qf6 Rd2 Qd8 Rd4 exd4 Kd2 Kd7 Kd3 a5 Kc4 c5 e4 g5 h4 g4 b6 g3 Kb5 a4 e5 g2 b7 a3 h6 c4 h7 d3 h5 d2 f3 c3 Nh3 g1R Bc4 c2 Nc3 a2 Qe2 d1B Qf2 Qe8 Kb6 a1B b5 Na6 b8B Be7 Bc7 Rb8+ Ka7 Nc5 b6 Bd8 b7 Nf6 Rh2 Rf8 h8Q Nfe4 Qh6 f6 Qhe3 Rf7 Qee2 Bb2 Qd3 Ba3 Rh1 Qf8 Qde3 Bb4 e6+ Ke8 e7 Be6 Qee2 Kd7 e8N Qg8 h6 Re1 Rg1 Re7 Rg7 Rf1 Bd2 c1N Rh7 N1b3 Bc1 Bc2 Nd1 Bd2 Qee1 Bg5 Qee3 Bh4 Qee1 Rc8 Bb8 Rc6 Bc7 Rb6 b8N+ Kc8 Qee3 Rd7 Na6 Nb7 Bb8 Nec5 Qe5 Ne4 Qf5 Bf7 Qe6 Rb4 Bc7 Ra4 Bb8 Ra1 Bb5 Be7 Qe5 Qg4 Bd2 Rd8 Bc4 Kd7 Nb2 Rfb1 Nd1 Rc8 Bc1 Rc7 Qf5+ Kd8 Qe5 Qc8 d7 Ba3 Qf5 Ke7 d8N Bb4 Ne6 Ba5 d6+ Kd7 Nhf4 Kc6 d7 Bg8 d8Q Bf7 Bd5+ Kb5 Bc4+ Ka4 Qd3 Rd7 Nd4 Bd8 Nh3 Bg8 Bbf4 Bd5 Bcd2 Ka3 Qe6 Rg7 Bde3 Rd7 Bc1+
nqbrQ1r1/4NKP1/kB1p1N2/q4RN1/NR1Pn1Q1/1R1r4/r2N1Q2/2b1r3 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c6 b4 Qc7 b6 Bh6 b5 Bg7 b7 Bf8 b6 Qd8 Bb5 cxb5 Ke2 a5 Kd3 h5 Kd4 e5+ Kd5 e4 c4 h4 f4 a4 g4 b4 c5 b3 f6 h3 f5 b2 g6 a3 g7 d6 c6 h2 g5 a2 f7+ Ke7 c7 Kd7 g6 e3 f6 e2 Nf3 e1Q Rf1 h1R Nc3 b1R Na4 Rb4 Rb1 a1R Rb3 Na6 b8Q Nh6 g8N Re4 g7 Rf4 b7 Be7 f8Q Rc4 f7 Ng4 d4 Bg5 Nd2 Ra2 Ba3 Rc1 Rf5 Rc3 Bc5 Rd3 Bb6 Nf2 Qg4 Qee8 Rb4 Ne4 Rb3 Ra7 Qa8 Re1 b8R Bf4 Bc5 Bg5 R8b4 Be3 Qb8 Ra8 Bb6 Qg5 Kc4 Kc6 Nf6 Bd7 Qd8 Kb7 Kd5 Rg8 c8N Qh5 Ne7 Bc8 Nf3 Bc1 Nd2 Nac5 Qd7+ Ka6 Qd8 Qb5 Qde8 Nd7+ Ke6 Qa5 Qd8 Qh1 Qfe8 Rb8 f8N Qh8 Kf7 Ra8 N8h7 Rb8 Ba7 Nb6 Ng5 Na8 Qc7 Bd7 Bc5 Rd8 Bb6 Bc8 Qcd7 Qh2 Qh4 Qhe5 Qf2 Qeb5 Ba7 Qb7 Bb6 Qb8 Qe6 Nc3 Qee2 Ne4 Qg4
5N2/2N2k1Q/2Qr1npb/n2P2R1/rqR1R2n/nN2Q1Pb/KQ1Q1n1B/3q4 b - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 b5 a4 f5 axb5 h4 exf5 h3 g3 Kf7 Bg2 hxg2 Ra3 Ke8 Ra6 Rh3 Ra1 Rh8 f4 a5 d4 e5 Kd2 c5 Kc3 e4 Kb3 e3 h4 e2 d6 e1Q d5 g6 d7+ Kf7 f6 c4+ Ka2 c3 b4 a4 b6 c2 f5 a3 b7 Qc3 b5 Qd2 b6 Be7 h5 Qf2 h6 Bf8 h7 Qe7 d8Q Qfe2 Rh5 Qe1 Be3 Bg7 Qd7 Kf8 f7 Ra5 Rg5 Ra8 Ne2 g1N Nf4 Q7b4 Qc6 Qa5 Nd2 Nh6 Nb3 Nh3 Bg1 Qab4 Bh2 Nf2 Qd2 Ra4 Rc1 Nd7 b8Q Nf6 b7 Qd1 Ne6+ Ke7 f8N Kf7 Nc7 Bd7 Ka1 a2 Qa7 Be6 Kb2 a1N b8Q Rg8 h8Q Bd7 Nfe6 Rd8 Nf8 Be6 Qae3 Rd6 Rb1 c1N Qbb6 Nf6g4+ f6 Nc2 Qbb5 Na3 Qbe2 Ncd3+ Ka2 Nf5 Rc1 Nb2 Rc4 Bh6 Re4 Nbc4 Qb2 Qa5 Qe2d2 Nh4 Rf4 Qa8 Nd7 Na5 Rc4 Qg8 Nb5 Ke8 f7+ Ke7 Nc7 Qb8 f8R Qb4 Rff4 Nf6 Rfe4 Kf7 Nf8 Bh3 Qh7+
1RKB4/NQ1Q2nN/1qRb1Q2/kp1Nrr1n/1P3n1q/3N3P/2b2N2/3R1n1b b - - 0 1 illegal: No possible last move, all moves rejected
1B2Nr2/1Rb1bq2/2RQBr1k/3R2Q1/2Kp4/2b1Bq1n/PR1P1Q2/n2bq1R1 b - - 0 1 illegal: No possible last move, all moves rejected
1QQ1rBb1/2r1N1rN/1r1p1QN1/R6n/1P2R3/2qPk1n1/RQ3b1K/qn3Q2 b - - 0 1 legal: proof: b4 f5 e4 c5 exf5 h5 g4 b5 gxh5 c4 c3 Rh6 Bd3 Rh7 Bc2 Rh6 a4 Rh8 Bb3 cxb3 axb5 Rh7 Kf1 Rh6 Ke1 Rh8 Kf1 Kf7 Kg2 Kf6 f4 e5 h4 a5 h6 g5 h5 a4 d3 b2 b6 d6 c4 g4 b7 e4 c5 g3 c6 a3 c7 e3 h7 a2 h6 e2 Rh4 e1R Nc3 b1N Nd5+ Kf7 f6 Kg6 f7 Kf5 Nf3 Ne7 Ne5 Nd7 b8Q Bg7 f8Q+ Nf6 Ng6 Be6 c8Q Ra6 Qb3 Rf1 Qb2 Qc7 Kh3 g2 Kh2 Rg8 h8Q g1R h7 Qc3 Rh5+ Kg4 f5 Kf3 Bh6 Rc1 Rg5 Nh5 f6 Rc6 f7 Bd4 Qf6+ Nf5 h8R Bf2 Nde7 Ke3 Rh7 Nfg3 Ra5+ Nf4 Bg7 Rb6 Rh4 Nfh5 Rc4 Be1 Qf1 Bf2 Qfd8 Re8 f8N Bg8 Nh7 Qe1 Rf4 Rc7 Bf8 Qc1 Qdd7 Qc6 Qf5 Qc3 Qf6 Nd2 Rd1 Nb1 Rd2 a1Q Qa3 Nh1 Ra2 Rg5 Qb2 N1g3 Nh8 Rg7 Nhg6 Bf7 Rc4 Bg8 Re4+
K3brb1/2k2pN1/1bP2N2/1R4R1/R2QQ1qb/n2NBr2/3NqP1n/1q2N1Q1 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 e6 g4 Nh6 gxh5 Ng8 Bg2 Qc7 Bf3 Qd8 Bd5 exd5 Kd2 g5 Kd3 a5 Kd4 d6 c4 Kd7 e4 g4 h4 g3 b4 a4 h6 g2 e5 a3 h5 a2 b6 Nf6 b5 Ra4 e6+ Ke7 h7 Rg8 h8N Bg7 b7 Qf8 h6 Kd8 b6 Qe8 c6 Ra3 h7 Nbd7 b8R Ne5 c5 Nfg4 b7 Rf8 e7+ Kc7 Nf3 g1Q Ne1 Bd7 Be3 Nh2 Nd2 Bf6 Ng6 Qg4+ Nf4 Bh4 h8Q Nc4 Rg1 Rb3 Qf3 Na3 Qe4 Bf5 Nfd3 Bh7 Rg2 Bg8 Rg3 Qf5 Rg5 Qg4 Qe5 Rc3 Qg3 Rb3 Qg1 Rc3 Rb1 a1B Ra8 Bb2 b8N Ba1 Nd7 Qb8 Rc1 Qb1 Ra4 Bb2 N3e5 Ba1 Nf6 Bb2 Bf4 Rf3+ Rc3 Bc1 N5d3 Bb2 Be3 Bc1 Nc4 Bd2 Rb3 Ba5 Nd2 Bb6 Kc3 d4+ Kb4 d5 e8N+ Kb8 Ng7 Kc7 Nf4 d3 Rb2 Nc4 Kb5 d4 Ka6 Na3 Rb5 Qb3 Nf1 d2 Nfd3 d1Q Nd2 Qe2 Rh5 Kd8 Kb7 Qb1 Ka8 Kc8 Rg5 Kd8 Nc1 d3 c7+ Kc8 Ndb3 d2 Ncd3 d1B Nd2 Ba5 Nfe8 Kd7 Qd4+ Kc6 c8Q+ Bc7 Qcd8 Bb6 Nf6 Bc2 Qe8+ Kc7 Nb2 Bf5 c6 Bd7 Nbd3 Bc5 Rb8 Bb6 Qe6 Be8 Qee4 Ba5 Rbb4 Bb6 Rbb5
4k1Nn/QpbQBr1q/4R3/2Qr1r2/1R1Qbrq1/1N2Rq2/1PN1nQP1/K7 b - - 0 1 illegal: No proof kernel
2Q3rq/1n5P/r6r/kn3r2/R1pB1bRQ/NBP2QB1/nQb1n2Q/K2R4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 g4 h6 g6 Ba3 Nc3 Bc5 Ne4 Bf8 g5 h5 Nf2 Ba6 Ng4 hxg4 Bh3 Bb7 Bf1 Bc8 Kd2 a5 Kc3 d5 e4 Kd7 h4 f5 b4 c5 Kb2 Kc7 h5 Kb6 e6 g3 c3 g2 h6 f4 h7 f3 e7 a4 e8Q f2 g7 d4 e5 d3 g6 d2 e6 Be7 Ne2 g1N Rb1 a3+ Ka1 a2 Nd4 Ra5 Qf3 d1R Nc2 Rd6 Na3 Nc6 Bc4 f1N Be3 Ra6 Bd4 Nh2 Bb3 Nh6 g8Q Nf5 g7 Bf6 e7 Be5 Qc4 Rh6 g8R Bf4 Qeh5 Nd6 e8Q Nb7 Rg4 Ne2 Rhd1 Rg8 Qee5 Bd7 Qh4 Bf5 Qce6 Bc2 Qc8 Qf6 Qeb8 Qh8 Qe5 Nc1 Qee2 Nf1 Qeh2 Ng3 Rb2 Ra5 Rb1 Ka7 b6+ Ka6 Rb2 c4 Rb1 Rf5 b5+ Ka5 Rb2 Nbd8 b7 Na7 b8Q Nge2 b6 Nb5 b7 Bg5 Ba4 Bd2 Rb4 Bf4 Bb3 Rff8 Qd6 Rf5 b8B Nb7 Qde6 Bg5 Bg3 Bf4 Kb2 a1R Qee3 Na2 Qd2 Bd3 Qc2 Rc1 Qb1 Bc2 Ka1 Ra6 Rd3 Rg1 Rd1 Rh1 Qb2 Rd5 Qhg2 Rh3 Qh2 Rf5 Qe7 Rhh5 Qeh4 Rhh6 Ra4#
3BQ3/3qr2N/k1p1P3/BQR1b1QB/2bn2N1/4rr1N/2P1n1n1/1KN1N1rn b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h5 g4 Ne7 g6 Ng8 b4 Nc6 g5 Nb8 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kd2 a5 h4 f5 e4 d5 h5 Kd7 h6 a4 b6 Kc6 h7 Kb7 g7 a3 b5 a2 g6 a1R Ne2 c6 Rh5 Nf6 g8N d4 g7 d3 Nh6 f4 g8N Nfd7 Nf6 Rg8 h8N f3 Ng6 f2 Nh7 g3 Ngf4 g2 Nh3 g1N Bg2 f1R Bf3 R1a3 Rf5 Rg3 Bh5 Qc7 Ng4 Na6 Bb2 Ra7 Kc1 Rc3 Nd2 Ndc5 Kb1 Ne6 Nf3 d2 Qc1 d1N Qg5 Re3 Ne1 Nf4 Bc3 Rff3 Nc1 Bg7 Bd2 Nf2 Ba5 Kb8 b7 Nh1 e6 Qe7 Rc5 Nge2 e5 Rg1 Bd8 Qe8 e7 Be6 Qg6 Nc7 Qg5 Bc4 e6 Qf7 e8Q Ng2 Qf4 Be5 Qf5 Ra8 Qg5 Ka7 b6+ Ka6 b8B Ra7 b7 Nb5 Bbc7 Nbd4 b8Q Qe7 Qb2 Qd6 Bb6 Re7 Ba5 Qd7 Qb5+
6n1/1QrNnBRQ/p1Qb2p1/P3P1qq/4k3/r5B1/B1bR1QR1/Q1n2bK1 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nge7 fxg5 Ng8 g6 Nb8 g7 Qe7 Nd2 Qf6 Nb1 Qd8 g4 Na6 g5 Qe7 g6 Nf6 g8B Kd8 g7 Nb8 Nc3 Ke8 Nd5 Qd8 Nf4 Na6 Ng6 hxg6 Bd2 Nb8 Bf4 Na6 Bc1 Nb8 Kf2 Ke7 a4 Ke6 c4 Kf5 h4 b5 e4+ Ke6 h5 d5 c6 b4 a5 b3 c5 a6 c7 d4 c6 b2 h6 b1B h7 d3 Nf3 d2 Rg1 Bd6 Rg2 Qe7 Bc4+ Nd5 Ba2 Ra7 Kg1 Bd7 c8Q Qg5 c7 Nc6 Qb7 Ne7 c8Q Bc2 Qc5 Bb5 Qf2 Bf1 Qde1 d1N Bf4 Nb2 Rd1 Nd3 Bg3 Nc1 Qc3 Qh5 Qa1 Qg5 Qb4 Rc7 Qb7 Bc4 Rd2 Nf6 Rd5 Bf1 Qbb2 Kd7 e6+ Kc6 Qbb1 Nd7 Qb4 f5 Bf7 f4 g8R Nf6 Rg7 Rf8 h8Q Nfg8 Qh3 Rb8 Qbb2 Rb3 Qh7 Ra3 Qb8 Nf5 e7 Qh5 Nh2 f3 e5 Qg5 Ng4 Qh5 Rd4 Kc5 e8Q Nfe7 Nf6 Qg5 Bb1 Qh5 Rd5+ Kc4 Rc5+ Kd3 Nd7 Ke4 Bba2 Qg5 Rd5 Qh5 Qb7 Qg5 Qd2 f2+ Kh2 Bb5 Qec8 f1Q Qf2 Qe2 Kg1 Qeh5 Qc6 Be2 Q8b7 Bf1 Rd2+
3B1nB1/pq4nB/2QP4/p1N1bR2/P3Q1q1/2r1n2q/KN1N4/1r1QBbBk b - - 0 1 legal: proof: b4 f5 e4 g5 exf5 d5 c4 g4 cxd5 g3 hxg3 b6 g4 Kf7 g5 Ke8 a4 Bg7 Ra2 Kd7 Rc2 Ke8 Rc5 Bf8 Ra5 bxa5 d4 Kf7 Kd2 c5 Kc3 h5 Kb2 e5 g4 h4 f4 e4 g6+ Kf6 b5 e3 d6 e2 d7 e1N g5+ Ke7 d5 Kd6 g7 h3 b6 h2 g6 c4 f6 c3+ Ka2 c2 b7 Rh3 f5 Ke5 f7 Ke4 f6 Rd3 Be3 c1Q Nh3 Nc2 Nf2+ Kf5 Nd2 Qc7 d8B Ba3 f8Q Nd7 b8N Nh6 g8Q Qb7 g7 Bd6 f7 Be5 Qe7 Rc3 Na6 Rb8 Qge8 Nf8 g8B Bd7 d6 Bb5 Nc5 Ba6 Rg1 h1Q Qc6 Qh3 Nfd3 Bb5 Bf2 Ne3 Nb2 Kf4 Bd3 Nhf5 Rf1 Ng7 Bg1+ Kg3 Bdh7 Be2 Rf2 Bf1 Rf5 Qc2 Qe6 Qe4 Qed5 Qf3 Qe4 Kg2 Bh4 Kh1 Be1 Nfe6 f8B Qfg2 Be7 Nf8 Rf3 Qgg4 Bd8 Qe7 Nbd3 Rb1 Nb2 Qb7 Rf5+
4qQR1/n1QBQ1Kn/2R2N2/P2b4/3p1np1/N5rk/5QPb/1QNRr1rq b - - 0 1 illegal: Other
B2Q1R2/PqRpB1Q1/2b2nn1/1QqP2K1/rb1Qp3/4k3/2R2bQ1/4nrBN b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c6 b4 Ra6 bxa5 Ra8 Nc3 c5 Nd5 Nc6 Nb4 cxb4 Bg2 Nb8 Bh3 Ra7 Bf1 Ra8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 h4 b3 d4 b2 a4 b1N c4 e6 c5 b4 c6 b3 a6 b2 h6 g6 h7 Qe7 h5 Na3 a5 b1Q c7 Bg7 h6 Qc5 a7 Qbb4 a6 Bf8 Rh2 Bb7 c8Q Be4 Be3 Nc2 Qd8+ Qe7 Qe2 Na3 Bg2 Qa4 Rc1 Bg7 Nh3 Qb3 Rc7 Bc6 Qb5 g5+ Kg4 e5 f4 Nc2 Nf2 Bf8 Nh1 Qd5 Bg1 Ne1 Bf3 Qb3 Rc2 Qd5 Kh5 g4 Bg2 g3 Kg4 Kf7 f6 Kg6 f7 Nf6+ Kh4 Rg8 h8Q Kf5 h7 Qec5 Qg7 Qb3 Bd5 g2 h8Q Bd6 f8B e4 Be7 Rf8 Qhg8 Bb7 Q8h8 Nc6 Qhg8 Ne5 Bc6 Qb6 d5 Bb4 Q8h8 Qc5 Qhg8 Rb8 a8Q Qb2 Qa7 Ra8 Bd4 g1B Qab6 Rc8 a7 Be3 Qg2 Ba8 Q8g7 Ng6+ Kh3 Bf2 Bb7 Bh4 Bg1 Bf2 Bc6 Qd6 Qd4 Qc5 Bb7 Rf7 Ba6 Bc6 Bb7 Rb8 Ba8 Rb6 Rd2 Ra6 Rc2 Nf8 Q2g3 Ra4 Kh4 Ng8 Kh5 Nf6+ Kh6 Ng6 Qf3 Bg3 Qg2 Kg4 f5 Kf4 Rd2 Bf2 Rc2 Nh5 f6 Rf8 f7 Nf6 Qdc4 Ke3 Kg5 Rh8 Ng3 Rh1 f8R Qb1 Bh2 Rf1 Bg1 Qb3 Nh1 Ba3 Qa6 Qb7 Qab5 Bb4 Qd4+
q1RBn1b1/7r/4b1Rp/1q1B2QQ/p1k2NRB/1b2R2P/P2r2qQ/K1n4R b - - 0 2 legal: proof: d4 e5 dxe5 f5 e4 c5 b4 Bd6 bxc5 Nf6 e6 Bf8 e5 Ng8 f4 Na6 Nd2 Be7 Ne4 fxe4 f5 Bg5 g3 Bf4 gxf4 Nb8 Kd2 Ke7 Kc3 a5 Kb2 b5 c4 g5 h3 d5 c6 b4 c7 e3 c5 b3 c6 g4 Bb5 e2 Qd2 e1Q Ne2 Bd7 c8Q a4 c7 d4 Bc6 Na6 Qb8 h6 c8R d3 Rg1 g3 f6+ Ke8 f5 g2 e7 Kf7 e8R Rh7 Qb5 Nb4 Nf4 Qf1 Rh1 g1Q Qh2 d2 Re6 Kf8 f7 d1B Rg6 Ke7 f8R Nf6 e6 Kd6 e7 Be6 Rfg8 Ne8 f6 Nd3+ Kb1 b2 f7 Qgf2 f8B Q2g2 Qg5 Bb3 Bg7 Ra7 Bf6 Rd7 R8g7 Qfe2 Be3 Bg8 Bf2 Nc1 Bh4 Qb5 Re1 Bge6 Re3 Qda5 Rg8 Qa8 R8g7 Bbd5 Rg8 Kc5 R8g7 Kc4 Rg8 Nc7 e8Q Rd6 Qf7 Ne8 Bd8 Rd7 Qff5 Rd6 R8g7 Bg8 Qh5 Bde6 Rg4 Rd5 Qfg5 Rd2 Rg6 Nb3 Re2 Rd6 Kc2 b1B+ Kb2 Bc2 Re3 Rd2 Rh1 Nc1+ Ka1 Bb3 Bd5+
6Kn/p2q1pbr/P2Q4/q2N4/2kN1P1Q/b3r3/1BnBR2q/bN1BQNN1 b - - 0 2 legal: proof: b4 e5 g4 c5 bxc5 b6 a4 e4 h4 e3 h5 Ke7 h6 Ba6 dxe3 Bb5 e4 Bd3 e5 Bg6 Ra3 Bh5 gxh5 Ke8 Rg3 Qh4 Rg4 Qd8 Rg6 hxg6 Kd2 Ke7 Ke3 Ke6 Kd4 d5 e4 b5 c4 b4 f4 b3 c6 b2 c7 g5 c8N g6 h7 g4 a5 g5 c5 g3 a6 g4 c6 g2 h6 g3 c7 Qd7 Be2 Bb4 Nd6 Ne7 c8N Qc6 Nf5 Ba3 Nb6 Qe8 Ne3 Qd8 Nf1 Ng6 Bd2 Qh4 Qe1 Qh2 Bd1 Re8 h8B Nc6+ Ke3 Rac8 h7 Nb4 Kd4 Rc3 Bg7 Re3 h8Q Rg8 Qh7 Rh8 Qh4 Rh7 Kc5 d4 Nd5 d3 Bh8 Qh3 Rh2 Nc2+ Kc6 Qf5 Kc7 Qh5 Kd8 Qh6 Bg7 Nh8 Ke8 Qh5 Bb4 d2 Kf8 Qe2 Kg8 Qb5 Bc3 Qa5 Bf6 Kd7 e6+ Kc6 e5 Kb5 e7 Kc4 Nh3 g1B e8N g2 e6 Bf2 e7 g1B Rg2 Qc7 Ng7 Qa5 Qh5 Bh4 e8Q Bg5 Qe7 Bh6 Ne6 Bg7 Nd4 Bf2 Bf3 d1Q Qd6 Bh4 Be5 Bhf6 Qhh4 Qd3 Bh5 Qf5 Bd2 Qd7 Nbc3 b1Q Re2 Qbb7 Ng1 Qh3 Nb1 Qh2 Nb5 Qe7 Bb2 Bc3 Nd4 Qd7 Bbc1 Ba1 Bb2 Rc3 Re4 Rd3 Bd1 Rb3 Re2 Rg3 Qg4 Re3 Qgh4
4QbNr/1B2r1Pk/1pQ1n1Q1/2pQ3K/1BBQqR2/1P5b/5nq1/1nNN1q2 b - - 0 1 legal: proof: c4 f5 e4 d5 exf5 g5 cxd5 a5 h4 a4 hxg5 a3 b3 Bd7 Nc3 Be6 Rb1 Bd7 Rb2 axb2 a4 Bc8 Ke2 Kf7 Kf3 Kg7 Kg4 b1Q f4 c5 d4 e5 g6 b6 d6 h6 d5 e4 a5 e3 d7 e2 d6 e1Q a6 Rh7 a7 Qee8 f6+ Kh8 f5 Rf7 g7+ Kh7 Qc2 Qe5 Bc4 Qd4+ Kh5 Bb7 g4 Qc8 d8Q Qa1 g5 Qf2 d7 Bd5 Bd2 Nc6 Rh4 Qf4 Nge2 Qca6 Nc1 Nd4 Nd1 Q1a2 Bb4 Qe4 Rf4 Ne7 g8N Be6 Qc7 Rc8 a8B Nd5 d8Q Nc3 Qc6 Re7 f7 Nb1 f6 Bh3 Qdd5 Ne6 Bb7 Qb5 Qc3 Qag2 Qcd4 Rb8 Kh4 h5 g6+ Kh8 g7+ Kh7 Rg4 Nd8 Kg5 h4 Kh5 Ne6 Rf4 Bf5 Qe3 h3 Qed3 h2 Q3d4 h1N Rf1 Ree8 Rf4 Be7 f8Q Bh3 f7 Nf2 Qa1 Bd6 Qad4 Re7 Qfe8 Rd8 f8Q Rc8 Qff6 Rb8 Qef7 Rf8 Nh6 Rh8 Qfe8 Rf7 Bf1 Bf8 Ng8 Re7 Qfg5 Qbe2+ Qg4 Qe1 Bc4 Qef1 Qgg6+
1B1r3R/1pR3B1/3p2KP/4b1nn/2q4B/qPQ1NBQb/1kBb3n/r1R1Q3 b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 f5 exf5 a5 d4 a4 dxc5 Kf7 Nd2 Ke8 b3 a3 Nc4 Ra6 Nb2 axb2 Qd2 Ra5 Qd1 Ra8 Kd2 Kf7 Ke3 Kf6 Ke4 b1Q f4 e5 a4 g5 h4 g4 h6 g3 a5 g2 h5 Qe7 c6 Qe6 c7 Qe7 a6 Qc5 a7 Qa5 h7 Na6 h6 Qb5 Qe1 Qb6 Bd3 Be7 c4 Bb4 c5 Qa2 c6 Qb2 Ne2 g1N Ng3 Qh2 Bc2 Qh4 Nf1 Bc3 Ne3 Rb8 a8Q Qa5 Rh2 Ke7 f6+ Kd6 Kf5 Kc5 f7 Kb4 f8B+ Nc5 Bg7 e4 Kg6 Ne6 f5 Ng5 f6 Qa3 f7 N1f3 f8B+ d6 Be7 Bd7 c8Q Bh3 c7 Nf6 Bd2 Qf4 Rc1 Rd8 h8R Nh5 Qa6 Qh4 Qd3 Ra8 Qg4 Ra4 c8B Ra7 Re2 Nh2 Qgg3 Ra8 Bg4 Ra7 Nd1 e3 Bf3 Qc4 Rf2 e2 Be3 Ra5 Ba7 Ra6 Ne3 Bd2 Qeg1 e1B Bb8 Bc3 Bef6 Bed2 Qe1 Be5 Qd4 Ra5 Qc5+ Kc3 Qc6 Ne4 Bh4 Kb2 Qc8 Ng5 Rg2 Bdc3 Rd2 Bb4 Rd5 Bd2 Rc5 Qab4 Rc7 Ra1 Qe6 Qa3 Qf6 Bec3 Qfe5 Bd4 Qa5 Be5 Qc3+
1bbr4/B1kBKB1B/3Nb1RP/b2N3p/1Bq1b2P/1n2r1Q1/1N1Q3p/6Qn b - - 0 1 illegal: No proof kernel
3nr2n/qr3QNQ/1b2bpQ1/1Bk2P2/Q1rp4/2r1Q1bP/RB2KB2/1N2N3 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e5 d4 Nf6 b4 Qd7 d6 Ng8 d5 Qe7 Ra2 Qf6 Rd2 Qd8 Rd4 exd4 e4 Kd7 f4 g5 f5 c5 h3 a5 b6 f6 e5 a4 e6+ Ke8 b5 g4 b7 c4 e7 Kd7 e8N c3 h6 a3 h7 c2 b6 a2 Rh2 a1R Bb5+ Nc6 b8B g3 b7 g2 Ke2 Be7 Bb2 c1R Ng7 Qa5 Qa4 Bd8 Nf3 g1B Ne1 Ne7 Rg2 Rg8 h8Q Ra7 Qh7 Bb6 Bc7 Rc3 b8Q Rf8 Qb7 Re8 Qg6 Bf2 Bb8+ Kd8 d7 Bg3 Bf4 Raa3 Be3 Rc4 Bf2 Rac3 Qf7 Rg8 Rh2 Ng6 Rg2 Nh8 Qg6 Ke7 d6+ Kf8 Qh7 Kf7 d8Q+ Bd7 Qdc7 Nd8 Qf3 Re8+ Qe3 Rb7 Qg6+ Kf8 Rh2 Be6 d7 Ke7 Rg2 Nc6 Qh7 Qa7 d8Q+ Kf8 Qd5 Nd8 Qcf4 Ke7 Qg4 Qb8 Qgg6 Qa7 Qdf3 Kd6 Qfh5 Kd5 Qf7 Kd6 Q5g6 Kc5 Kd2 Bc8 Ba3+ Rb4 Bg1 Re5 Kd1 Re4 Ra2 Re8 Ke2 Be6 Bb2 Rbc4 Bf2
3n2Qb/2BB1N2/1K1B3p/QnB5/4q1bp/QRB2rr1/Pb2RbrP/1R1k4 b - - 0 1 illegal: No possible last move, all moves rejected
b5rQ/p1rn4/1B2P1r1/P1qnQN2/RBr1R1kb/4b1p1/1BQ4B/5BRK b - - 0 1 illegal: No possible last move, all moves rejected
n1R2r2/1Q2Kp1R/2rB3p/2B1Pr1Q/3nr1n1/qBNR1B2/5bBP/2k2bQ1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 d5 fxe5 Bc5 Nc3 Na6 cxd5 Nb8 Ne4 Bb6 Ng3 Bc5 Nh5 Bf8 Nf4 gxf4 Kf2 Kd7 Kf3 c5 Ke4 a5 Kf5 f3 b4 c4 g4 f2 e4 c3 d4 h6 g5 c2 g6 a4 e6+ Kd6 g7 a3 b6 a2 e5+ Ke7 b7 Qd6 b5 Na6 b8Q Nf6 g8B Qc7 d6+ Kd8 d5 Nd7 b6 Nac5 b7 Qc6 e7+ Ke8 Bg2 f1N Ba3 c1R Ne2 Rc3 Rc1 a1R Bh7 Ra4 Rg1 Nb6+ Kf6 Kd7 Bc2 Ne6 Bc5 Nd4 Bb3 Na8 Qa7 Qa6 b8B+ Bb7 Qb6 Rcc4 Nc3 Ne3 Qh5 Qa7 Bf3 Ba6 Rg7 Rg8 Rc2 Rf1 Rh7 Bb5 Rc1 Rab4 Bc7 Qa3 Qb7 Ba6 Rd1 Rb6 Rd3 Rc6 Qg6 Ne6 Qg1 Re4 Qb5 Nd4 e8B+ Kc8 Qb4 Bb5 Bd7+ Kb7 Bh3 Ka6 Bg2 Rh8 Bb8 Bc4 Qb7+ Ka5 Bb6+ Kb4 B8c7 Rc5 d7 Rc6+ d6 Ba6 d8Q Be7+ Kg7 Rf8 d7 Bh4 Qg5 Bf2 d8R Ng4 Rc8 Bc4 Qh5 Bb5 Be6 Bc4 Bd6+ Kb3 Bd5 Kc2 Bbc5 Kc1 Be6 Bb5 Bb3 Qa2 Be2 Bg3 Re3 Qa3 Bed1 Rf5 Bdf3+ Bf1 Rd3 Re8 Bc2 Bf2 Bb3 Re7 Kf8 Rd7 Rc7 Rd8+ Ke7 Rf8 Rc8
2nn4/4q2R/2rQpqbQ/1KRBPr2/NN2N1R1/RQ1pn1PR/1b6/k3n3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 hxg5 f4 d4 Qc7 dxc5 Qd8 Be3 fxe3 Ke2 Kf7 Kd3 Ke6 Kc4 Ke5 b4 a5 f4+ Ke6 f5+ Ke5 b6 d5+ Kb5 h5 c4 h4 g6 e2 g7 e1N f6 e6 c6 h3 g3 h2 c7 a4 b7 d4 f7 d3 c5 Kd4 c6 a3 e5 a2 Ne2+ Ke3 Nbc3 Ra4 Bg2 Nd7 b8Q Nb6 Nc1 Kd4 Ne4 Ra6 Qb3 Bb7 c8N Nh6 g8R Qf6 c7 Bc5 f8Q Nf7 Qg7 Rh5 Qh6 Rf5 Rg4 Nd8 Bf3 Nc4 Bg2 Rc6 Nb6 Be7 Na4 Nb6 c8R Ba8 Rc7 Nc8 Rb7 Bf8 Rh7 Bb7 Rb1 a1N Na2 Nac2 Rc1 Ne3 Rc5 Bd6 Ka5 Bf8 b5 Bd6 b6 Bf8 Rb5 Ba3 Rc5 Bb2 Kb5 Ba8 b7 Qe7 Rf1 h1Q Bf3 Qg2 Rh1 Qf2 Bg2 Qf4 Rh3 Qfg5 Qc7 Qgf6 b8R Ra6 Nd2+ Be4 Ra8 Rc6 Ra5 Rf4 Qb6 Bg6 Ne4 Rf3 Qb8 Rf5 Qd6+ Nd5 Ng5+ Ke3 Nb6 Kd2 Ra3 Ne3 Be4 Qff7 Na4 Qff6 Qc4 Kd1 Bd5 Kd2 Ne4+ Kd1 N2c3+ Kc1 Na2+ Kb1 Qb3 Ka1 Nb4+
5Q1B/4Bn2/n3Rr1k/K2p1BbP/n1BPR3/1qN5/p1bR1Bq1/1rQn3Q b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 gxh5 f5 exf5 Qb6 a4 Kd8 Nc3 Qc7 Na2 Qb6 axb5 Qc7 b6 Ke8 b5 Qd8 Nb4 cxb4 h6 Kf7 c4 g5 f4 a5 d4 e5 Kd2 d5 h4 a4 f6 Kg6 b7 b3 Kc3 g4 c5 g3 Kb4 g2 f7 b2 h7 b1N b6 e4 f5+ Kg7 h5 a3 Rh4 e3 f6+ Kh6 Ne2 g1Q Ra2 Be7 f8B+ Kg5 f7 Na6+ Ka5 Rb8 c6 Bf5 c7 Qg2 c8B Nc3 Bd2 Qd7 Be1 Na4 Rd2 a2 Bf2 Bc2 Re4 Qdh3 Bf5 Nh6 Qb1 Bf6 Be7 Rhf8 h8B Qhg3 Nc1 Q3h3 Bc4 e2 Qb2 e1N Ne2 Qa3 Nc3 Nd3 Qb1 Ndb2 Qh1 Rfc8 f8Q Nd1 Nb5 Rc6 Nc3 Rd8 b8R Nf7 Rb7 Rb8 Rd7 Rd6 b7 Rb6 Rd6 Rb1 Bh7 Rd8 Rc6 Rd6 b8Q Re6 Qd6 Qb3 Qa3 Rd6 Bf5 Re6 Qa8 Kh6 Qc1 Bg5 Rd6 Rg6 Rde6 Rf6 Qf8#
b6N/1p5p/1R1r4/RP2QqQK/kqn3rN/2nn2Nn/2N1R1NP/r1Q4B b - - 0 1 illegal: Other
1bQ2N2/5N2/4bP1p/1RB2Rq1/n3QnNk/1r5p/KQQrrp1P/n2Q1R2 b - - 0 1 illegal: No proof kernel
qb2R1k1/1rnbK1Bn/Q4R2/1Q2P2N/3np1B1/1ppRP1B1/2b3R1/1r1Q3R b - - 0 1 illegal: No proof kernel
R3b2N/bQp1R1kr/n1P1p3/Qnp1N2P/KN6/R7/nQ2B1r1/2r1QQq1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 d6 c4 Ba6 b3 Rh6 c5 Rh8 c6 Bb7 Ba3 Bc8 Bc5 dxc5 d4 Kf7 Kd2 a5 Kc3 g5 h4 g4 f4 e6 b6 a4 b7 g3 h6 a3 h7 a2 b4 g2 Kb3 Qg5 f6 Qe5 f5 Be7 d5 Nh6 b5 Bd7 d6 Ng8 b6 Qd4 Nc3 Be8 d7 Qg4 d8Q Nd7 b8Q Ra5 b7 Qd4 Qe1 Qd2 Be2 Kf8 f7 Bg5 Nd5 Ngf6 Nb4 Qd4 Nf3 g1R Ne5 Kg7 f8R Bd2 h5 Qg4 Rh3 Rg2 Qa7 Qg5 b8Q Nd5 Qbb7 Nc3 Qdb8 Nb5 Qab6 Ra6 Qa5 Bc3 Rd1 a1N+ Ka4 Nb3 Re3 Nc1 f6+ Kh6 f7 Kg7 Rd5 Na2 Rf3 Bd2 Ra3 Qe3 Rd6 Qg1 Rd4 Nf6 Rd7 Nd5 Re7 Rb6 Nbd3 Ndb4 Rg8+ Kf6 Rf8 Na6 Nb4 Bc3 Qd8 Kg7 Qd4 Bd7 Ra8 Be8 Qc8 Rb8 Qb7 Rd8 Qdf2 Rd1 Qff1 Rc1 f8N+ Kh6 Nf7+ Kg7 Ng6 Bd2 Nc2 Bb4 Nge5 Bc3 Qab6 Ba5 Nb4 Nd4 Qb5 Bb6 Qa5 Nb5 Nd7 Rg8 Nde5 Ba7 h8Q+ Kf8 Qhf6 Rh8 Q6f2 Rh7 Qd4 Kg8 Qb2 Kg7 Nh8+
1B3b2/p2b2pQ/1r2k1q1/K2B2P1/1NR1NB2/1pn3Qr/1qP2rN1/nN2Q1N1 b - - 0 1 illegal: No proof kernel
1B2nN1q/pp1b1k1R/1p5q/PrN3P1/1n4RR/QrQ1N3/1R1Q3b/1b3KR1 b - - 0 1 illegal: Other
1n1b4/B1R5/p2Br1rp/1n1QBb1P/3Bn1b1/1RpQQ2B/P7/N1K2Rbk b - - 0 1 legal: proof: d4 e5 dxe5 f5 e4 b5 c4 Bd6 cxb5 Nh6 e6 Bb4+ Nd2 Ng8 e5 Bf8 g4 Bb4 f4 Qe7 g5 Bd6 Ne4 fxe4 f5 Qf6 gxf6 Bf8 Kd2 d5 h4 g5 b4 c5 e7 Kf7 e8R c4 h5 d4 b6 g4 b5 a6 b7 d3 b6 g3 Rb1 h6 Nf3 g2 Ne1 g1B Nc2 Rh7 Na1 Bfc5 Bb2 e3+ Kc1 e2 Bd4 e1N Rb3 c3 Bh3 Nf3 Qe2 Be6 Rc8 Rg7 Rc7+ Be7 Qe4 Rg6 Qd5 Bh2 Rf1 d2+ Kb1 d1B Kc1 Nd7 b8B Bd8 b7 Bg1 Bba7 Rc8 Rc4 Rc6 b8B Rd6 Rc7 Be2 Be3 Nd4 Bf2 Nb5 Bfd4 Kf8 f7 Kg7 f8B+ Kf7 f6 Bg4 Qc5 Bef5 Qd5+ Re6 Bd6 Na3 Rc6 Nb5 Bbc7 Nb8 Rc5 Ke8 f7+ Kd7 f8Q Nf6 Qg8 Ne4 Qc4 Ref6 Qgd5 Re6 Qd3 Re8 Qb7 Ke6 Rc6 Kd5 e6 Rf8 e7 Rff6 e8Q Re6 Qd1 Nf2 B6e5 Ke4 Qc2+ Kf3 Bcd6 Bh2 Qbf7 Bg1 Rc7 Re7 Re1 Ne4 Qd5 Ree6 Bf6 Re5 Rf1+ Kg3 Qd3+ Kh2 Qe7 Kh1 Bh8 Ree6 Bhe5 Bd1 Qg5 Bdg4 Qge3
3B4/pQ2q3/K1NQpBn1/P1r1P3/1r6/pb1B1pNk/3NNbN1/3bnQR1 b - - 0 2 legal: proof: c4 d5 cxd5 g5 f4 b5 fxg5 Bg7 b4 Bh3 a4 Bh6 a5 Bc8 Ra4 Bf8 h4 bxa4 g4 Bh6 g6 Bf4 h5 Bh6 g5 Bf8 h6 Qd6 Nf3 Qe5 Ng1 Qg7 hxg7 Be6 Qb3 Bg4 Qd1 Bc8 d4 Kd7 Kd2 c5 Kd3 h5 Kc4 f5 Kb5 f4 e4 e6 e5 h4 d6 c4 d5 a3 Nd2 c3 Ne2 c2 Rg1 Ne7 g8N h3 g7 h2 g6 h1B Nf6+ Kd8 g8Q Na6 g7 Rh4 d7 Bb7 Qf7 Rc8 g8N Bf3 Nh6 Ng6 Nfe4 Bc5 N4g3 Bf2 Nhf5 Nc5 Ne3 Nd3 Ng2 Ne1 Qf8+ Kc7 d8N Kd7 d6 Bbd5 Qf5 Bb3 Ka6 Rc5 b5 Ke8 Nc6 Rg4 Qd3 Kf7 d7 Kg7 d8B Kh6 b6 Rh4 Bc7 Kg5 b7 Kg4 b8Q Kh3 Qb7 Bg4 Bd8 Bh5 Bb2 c1Q Qd6 Qc3 Bc1 Qb4 Nc3 Bg4 Bd3 Bh5 Qe2 Bf3 Qf1 Bfd1 Nce2 f3 Bc7 Qg4 Bd8 Qg5 Nde4 Qf6 Bg5 Qe7 Nd2 Rb4 Bf6
3r4/1n1QK1R1/1kp1R3/1R2B3/b1bpn2p/rNP1PRQ1/1bB3pq/BR5Q b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 h4 Qe7 hxg5 Qd8 g4 f6 g6 Bc5 Nd2 Be7 Ndf3 Bf8 g5 f5 Nh2 Na6 Ng4 fxg4 Qd3 Nb8 Qd6 Ne7 Qd1 Ng8 Kd2 b5 Kd3 d5 Kd4 Kd7 f4 Kc6 a4 h5 e3 b4 g7 g3 a6 h4 e6 b3 Ke5 b2 a5 b1B f5 Rh7 f6 Rh6 a7 Ba3 a6 Kc5 g6 Bb7 e7 Nc6+ Ke6 Nb4 e8R Bb2 c3 Nc2 f7 Rc8 f8B+ Ne7 a8R Bc6 g8Q Rb8 a7 Rh5 g7 Rf5 Rh3 Rc8 Ne2 Kb6 Nd4 Rb8 Nb3 Ne1 Bd3 Nc8 Bd6 Ba4 Bc2 Nd3 Be5 Ba2 Rb1 Nd6 Qh1 g2 Rf3 Qc8+ Ke7 d4 Qe6 c6 g8R Rh5 Qd7 Qc7 Rg7 Rd8 Rb8+ Nb7 a8Q Nc5 Qa7+ Kb5 Qa8 Ne4 Qa7 Rh8 Qc5+ Ka6 Qd6 Kb6 Qg6 Rh5 Qg3 Qd6+ Kf7 Qc7 Re6 Rg5 Ke7 Rh5 Nd2 Bc4 Nb3 Rf5 Bf4 Ra5 Bd6 Ba3 Bb2 Ra8 Ba1 Bb2 Be5 Ra5 Bf6 Qf4 Be5 Ra6 Qge1 Qh2 Qg3 Bab5 Ra8 Ra3 Ra5 Ba4 Rb5+
2n3Q1/R1K1PqQ1/bR3p2/n2BN1Rp/3k1r2/2bq1pQp/3BQP1r/2BQ4 b - - 0 1 illegal: Other
1b3rq1/3p2kN/NNb1Q1B1/p4qBK/P1pP1BB1/3nb1p1/Q6n/B3Q1R1 b - - 0 1 legal: proof: b4 a5 g4 b5 a4 f5 c4 h5 cxb5 e5 f4 Ra6 fxe5 f4 Ra3 Rc6 Rg3 Rf6 Rg2 Rf5 gxf5 Bd6 Rg6 Bf8 Rg4 hxg4 Kf2 Kf7 e4 g5 h4 c5 h5 f3 Kg3 f2 h6 c4 f6 Ba6 b6 Bg7 h7 Qc8 b5 Qd8 b7 Qe7 b6 Qd6 Nf3 Qa3 e6+ Kg6 e5 Qf8 e7 Kf7 e8B+ Ke6 f7 Bb5 Rg1 Nh6 Bh3 f1Q Qe1 Kf5 e6 Kg6 e7 Rg8 h8B Kf6 Nc3 Ba6 Nd5+ Kg6 d3 Nc6 b8B Bb7 Bbf4 Ba8 b7 Be5 b8N Nb4 Nb6 Bc6 Na6 Bb8 Ba1 Rh8 d4 Qg8 Bd2 Nd3 f8Q+ Kh7 Qf5+ Kg7 Qe2 Qb1 Qfe6 Qb5 Bg6 Qf5 Kg2 g3 e8Q g4 Bc1 Qgf7 Qa2 Rf8 Bg5 Qg8 Bcf4 Bc7 Qe1 Bd6 Q8e6 Bb8 Kh1 g2+ Kh2 Qd5 Kg3 Qf5 Kh4 g3 Kh5 Ng4 Nd2 Nh2 Bg4 Bd5 Ne4 Bc6 Rh1 g1B Nf6 Bf2 Nh7 Be3 Rg1
RBbNR3/1b6/2B3Bq/r2p2rR/kQ2nP1K/3P2nR/1q4RR/b2R1b1q b - - 0 1 illegal: No possible last move
R2Q2b1/5B1r/3R1kNR/r1R3R1/2rR4/1bpR2pP/qbq3Pn/1n3NKN b - - 0 1 illegal: No possible last move
2kNq3/N2pp1r1/b2RNpR1/4nNQ1/rq1B2P1/1Nb1N3/1r1nNPK1/4R3 b - - 0 1 illegal: No proof kernel
3KB3/2pnRb2/4p3/3RP3/RRknNN1r/R1NpQ3/2RbrP1q/R2b3b b - - 0 1 illegal: No possible last move, all moves rejected
4b2k/BbK1R1NQ/1Q3Rr1/1r1PpqQ1/Q3Q3/1NPQp3/3p1Q2/2rn4 b - - 0 1 legal: proof: h4 b5 d4 f5 a4 c5 axb5 d5 dxc5 g5 hxg5 d4 e3 Bg7 Bd3 Be5 Be4 fxe4 Ke2 d3+ Ke1 Bd4 exd4 Qd6 Rh6 Qc7 Rh1 Qd8 Kd2 Kf8 Kc3 Kg7 Kb4 h5 f4 e5 g4 a6 b6 h4 Ka5 h3 b4 h2 c6 Rh5 c3 Qe7 d5 Qd7 c7 Qf5 b5 Ra7 b7 Nd7 b8Q Qe6 g6 Rh8 g5 Ne7 f5 Qg8 f6+ Kf8 b6 Qh7 b7 Kg8 g7 Qg6 f7+ Kh7 f8Q Ng8 Nf3 Nh6 Nbd2 Ra8 Qa4 Rg8 Rf1 h1B Nb3 Qf5 Be3 d2 Nh4 Qf3 Ba7 e3 Nf5 Nf6 Kb6 Bd7 c8Q a5 Qcc4 Bc6 Kc7 Nhg4 Qe4 Nf2 Qbd8 Qh3 b8Q Bf3 Qbb5 Bh5 Qbd3 Bb7 Qdd6 Rd8 Qb6 Rb8 Qh1 Bf7 Qfb4 Nd1 Qbe4 Rgd8 Ra3 Be8 Ra1 Rd6 Rb1 Kg6 Rb2 Nh7 g8Q+ Kh5 Qf8 Kg6 Ng7+ Qf5 Qh8 Kf7 g6+ Kf6 Qhg2 Re6 Qf2 Rd6 Qab4 a4 Rb1 a3 Qa4 a2 Ra1 Nf8 Qhh1 Nh7 Nh5+ Kg5 g7 Kg6 g8Q+ Kh6 Qff3 Qf6 Qbd4 Qf8 Rb1 a1R Na5 Bbc6 Rb6 Rb1 Nb3 Ra1 Rg1 Re6 Rg7 Rc1 Re7 Qf5 Qf2 Rd6 Qgg2 Rg6 Qc5 Ba8 Rf6 Rb5 Qb6 Bb7 Ree6 Nf8 Qg5+ Kh7 Re7+ Kh8 Ng7+ Nh7 Qxh7+
1K1N2NN/2Q2p2/2Q2Nbb/rp1pRB1r/3P4/NbN5/R2P2N1/r1b2k2 b - - 0 1 legal: proof: f4 a5 a4 e5 fxe5 b5 b4 Qf6 bxa5 Qg5 a6 Qg6 a5 Qd3 cxd3 Nc6 d4 Nb4 h4 g5 g4 Bb7 e6 Nc6 h5 Bc8 Ba3 Na7 Bd6 Ne7 Bf4 gxf4 g5 Ng6 hxg6 Nc6 Qa4 Ne7 Qb3 Nd5 Qd1 Nb6 axb6 Ba3 Qc2 Bb4 Qd1 Bf8 Kf2 Ke7 Kf3 Kd6 Ke4 c5 a7 h5 e7 c4 e8Q h4 b7 f3 b8N h3 g7 c3 g8N f2 g6 h2 g7 c2 Ra2 c1B Bh3 f1B Na3 Rh7 Qc2 Bg2+ Nf3 Be7 Re1 h1R Nc6 Bf8 Bf5 R7h5 Nd8 Rg5 Ne7 Rh8 g8N Bb2 Ng6 Rh6 Nh8 Rb8 a8N Rg3 Nb6 Rh5 Na4 Bh6 Nc3 Bc1 e3 Bf1 Nh4 Bc4 Ng2 Ra8 Re2 Rgg5 Kf4 Bb7 e4 Bb3 Re3 Ra5 e5+ Kc7 e6 Kd6 e7 Be4 Re2 Bd3 Re5 Rh1 Bg4 Bg6 Bf5 Rgh5+ Kf3 Kc7 Ke4 d6 Qd7+ Kb6 e8N d5+ Kf3 Rd1 Nef6 Ra7 Re8 Ka5 Ncb1 Kb4 Qcc6 Ra5 Nc3 Bb2 Re2 Ra1 Qdc8 Bg7 Kf4 Bc1 Ke5 Bh6 Kd6 Bg7 Kc7 Bf8 Q6d7 Bh6 Nc2+ Kc4 Re5 Ra4 Qa6 Ra3 Kb8 Ra5 Nfe4 Kd3 Na3 Bg5 Qc7 Bh6 Nd1 Ke2 Qac6 Kf1 Ndc3 Be3 Nef6 Bg5 Bc2 Bh6 Bf5
rQ2nb1q/rP1qQ1n1/3QQr1B/2N2QN1/4P3/3Bk3/5R2/nQnKQ1q1 b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 f5 fxe5 h5 a4 f4 axb5 Nh6 g4 Bf5 gxf5 Ng8 Ra3 Qc8 Rg3 Qd8 Rg4 hxg4 e4 Ke7 h4 c5 d4 g5 e6 Kd6 f6 a5 b6 c4 b5 f3 b7 c3 f7 g3 e7 a4 e8Q g4 b6 g2 h5 c2 h6 a3 h7 a2 Nd2 a1N Nb3 g3 Nh3 g1R Rh2 g2 Bh6 c1N Nc5 Nc6 b8Q+ Qc7 b7 Ra2 Ng5 Ra7 Qe2 f2+ Kd1 Rh1 Qe1 g1Q Bd3 f1Q Rf2 Nf6 Qec8 Bg7 f8Q+ Ne7 Qfe8 Qh2 Qf5 Qfg1 Qb5 Rf8 h8Q Ne8 Qb1 Rf6 Qg8 Bf8 Qf7 Ng6 Qg8 Nf4 Qf7 Nh5 Q7g6 Ke7 Qg8 Qc8 Qgg6 Nhg7 d6+ Kd8 d7 Ke7 d5 Qhc7 Rf3 Kd6 d8Q+ Qd7 Rf2 Rh2 Qg4 Ke5 d6 Kd4 Qe6 Qcc8 Qgf5 Rh4 Qde7 Rh3 Bc4 Rha3 Bd3 Ra8 Qba2 R3a7 Qb1 Qb5 d7 Qb2 d8Q+ Qd7 Qf1 Ke3 Qdb6 Qa2 Qe6d6 Qg8 Qde6 Qh7 Qb6d6 Qh8 Qe1+
bq1b4/1NQ5/BnRpr1B1/3P2BP/1r6/k2n2KQ/B2N2nr/B1B3Br b - - 0 1 illegal: No possible last move
6Q1/1PPQ1q2/rqq2Q2/1Q2B3/3Q1K2/kr1p1b2/N4nQQ/R2rnRnB b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 f6 g4 e6 e4 Ba6 f4 Nh6 e5 Ng8 Nd2 Be7 Ne4 Bc8 Nf2 f5 gxf5 Bf6 Ng4 hxg4 exf6 Rh4 Qd6 Rh3 Qd1 Rh8 Kd2 g5 Ke3 d5 h4 Kd7 b4 a5 c4 g3 b6 Kc6 f7 a4 f8Q a3 h5 a2 h6 e5 f6 g4 h7 e4 f5 g2 f7 g3 b5+ Kb7 f6 Ra4 Bb2 Bf5 Ne2 g1R Be5 g2 Nc3 Nh6 Rb1 a1Q Na2 Qc7 Qg7 Bg4 f8Q d4+ Kf4 e3 f7 Qc3 Qfg8 e2 f8Q Nc6 Qff6 Qf7 Ra1 Ra6 Qb3 e1Q Bd3 Qh4 Be4 Rd1 Rf1 g1N Bh1 Bh5+ Qg4 Qf2+ Qf3 Ng4 Qb2 Qh4 Qh2 Qh3 Qfg2 Nf2 Qd8 Rg8 h8Q Rg3 Qhg8 Qb4 Qdd5 Rb3 Qde4 d3 Qe3 Bf3 Qd4 Nd8 c6+ Ka8 c5 Qhe6 c7 Qee8 c6 Qc5 b7+ Ka7 c8Q Kb6 b8Q+ Ka5 c7 Nc6 b6 Nb4 b7 Ka4 Qgh3 Ka3 Q2g2 Nc2 Qhh2 Ne1 Qcg4 Qee6 Qbe8 Qcb6 Qb5 Qec6 Qgd7
k1Brb1r1/1P2r3/BK2nrBq/1B6/2B1NB2/pR6/1n1P1QBQ/4Rrn1 b - - 0 1 illegal: No possible last move, all moves rejected
R2Qq3/bn1r2k1/1R3n2/bbB4p/RQ1p1RPN/1RN3Rr/R6P/5bbK b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 d4 Kd7 e3 e6 d6 Na6 d5 Qe7 Bc4 Nb8 Ba2 Qd8 Bc4 Ke8 d7+ Ke7 Ba2 Kd6 Bb3 Ke5 d6 Kf5 Bd5 exd5 Bd2 Ke5 Bc1 Ke6 Kf2 h5 b4 c5 e4 f5 b6 Kf7 g6+ Kf6 e5+ Kg7 b7 a5 b5 d4 e6 f4 e7 f3 e8R a4 b6 a3 Qb3 a2 Ba3 c4 Nc3 Na6 b8R Be7 b7 Nf6 Bc5 Rh7 Rf8 Qe8 d8Q Bd7 Qb4 Bb5 d7 Ra7 Kg3 f2 Nf3 f1B Nh4 Bd6+ Kh3 Bc7 Ra8 Bb6 b8R Rb7 Rb1 a1B Rb3 Ba7 Rg1 Rc7 Rb6 Bb2 Kg3 Bc1 Kf2 Bd2 g4 Rc8 Rg3 Rc6 Na4 c3 Kg1 c2 Nc3 c1B Kh1 Be1 Rab8 Be3 Ra8 Bg1 Rf7+ Kh6 g7 Re6 g8R Re3 Rgf8 Rd3 Re7 Bd2 Re5 Kg7 Re2 Be1 Ra2 Bd2 Be7 Nc5 Ra4 Nb7 Bc5 Ne4 Rf4 Nf6 Rg2 Rh3 Ra2 Bb8 R8a4 Ba7 Rg3 Rh8 Rf5 Rf8 Rf4 Rf7 Qe7 Be1 d8R Bd2 Ra8 Be1 Qd8 Rd7 Qc4 Bd2 Nd1 Bb4 Nc3 Ba5 Qb4
1q2n1QN/2Q5/k2N2B1/1bK1BQ1p/pp2r1Rq/1P2rQQP/Q4q2/2Q1qn2 b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 g6 a4 Nf6 a5 Ng8 f4 g5 f6 Bh6 f5 Kf7 Ra4 Ke8 Rf4 gxf4 Qa4 Bg5 Qc2 Bh4+ Ke2 Bf2 Qd1 Bb6 axb6 Qd7 Ke1 Qd8 Kf2 Kd7 d4 c5 g4 h5 b7 Kc7 b3 Kb6 d6 e5 g5 a5 h3 c4 d5 f3 Ke3 f2 f7 b4 f8Q c3 d7 e4 Kd4 c2 g6 e3 g7 e2 f6 e1Q f7 a4 d6 Qd2+ Bd3 f1Q Nf3 Qfe1 Nh4 Q2g5 Bf4 c1Q Ng6 Ra6 Rg1 Ra5 Be5 Qgh4+ Rg4 Nf6 g8Q Na6 b8Q+ Bb7 Na3 Qf1 Nb5 Ne8 Qd2 Qb1 Qa2 Qbe1 Qh6 Qff6 f8Q Nac7 Qc1 Ka6 Kc5 Nd5 Be4 Qf3 Qf5 Ne3 Qc7 Rh7 Nh8 Qb8 d8Q Nf1 d7 Bc6 Qdg5 Re7 d8Q Qff2+ Qge3 Re6 Qd5 Bd7 Qf3 Bc6 Bg6 Re7 Bd4 Re4 Qdf5 Bd7 Qef4 Re3 Q4g3 Re4 Kc4 Re3 Nd6 Rae5 Bb2 R5e4+ Kc5 Bb5 Be5
4B3/1NK2B2/2BB1p2/3bnrRB/1Npb1Pnp/P1Q1p1k1/q7/3QBrrB b - - 0 1 illegal: No proof kernel
2Q1b1qr/2n3Qp/Q1p1Q1R1/p6Q/6N1/1QR1P1kn/Q1P1pr2/KB1bb1N1 b - - 0 1 illegal: No extended proof kernel
rr1N3Q/r4k2/p1N1B3/n1N2n1P/RBp2r2/P6N/3B3p/K2Bn1BN b - - 0 1 illegal: No possible last move
1nb1B3/2NqB2b/rpN5/5BbQ/NpNB3r/1BP1P3/q1p3N1/2k1RK2 b - - 0 1 legal: proof: f4 e5 fxe5 c5 g4 a5 a4 h5 gxh5 d5 Ra3 c4 Rb3 d4 Rb5 Nd7 Rb4 axb4 c3 Ndf6 cxd4 c3 d5 c2 Bg2 Ne4 Bf1 Nc3 bxc3 Be7 Na3 Bd6 Nb1 Bf8 h4 Ke7 d4 f5 d6+ Ke6 d7 Kd5 a5 Kc4 h6 Kb3 a6 g5 h5 f4 h7 g4 e6 g3 d5 f3 h6 b6 a7 g2 d6 Be7 Na3 Qf8 d8N Bb7 d7 Ba6 Nc4 Bb7 Nc6 Ba6 d8N Bc8 Nb7 Bf6 e7 Bf5 e8B Qf7 Nc5+ Ka2 Nh3 Kb1 Na4 g1Q Rh2 Qc7 Bg5+ Ka2 e3 Bd3 Nf4 Be7 Ne6 Bf8 Be7 Nf6 Re2 Qg8 Bh3 f2+ Kf1 Qd7 Bf5 Be4 Qd5 Kb1 Nc7 Kc1 Qf7 Bg7 Qh5 Bf8 Ncb2 Qa2 Nc4 Rg8 h8N Rg4 h7 Rh4 Ng6 Bh6 h8B Bg5 Nf4 Bd3 Kg2 f1B+ Kg1 Bh3 Ng2 Be4 Kf1 Bd3 Be6 Bh7 Bf5 Ne4 Bd4 Nc5 N4e5 Na6 Nc4 Rc8 a8B Nb8 N6a5 Rd8 Bd5 Rc8 Nc6 Bg4 Nb5 Rc7 Bdf7 Ra7 Nc7 Ra5 Nd2 Ra6 Bb3 Bf3 Nc4 Be4 N6e5 Bb7 Nc6 Bc8 Re1#
1BBrk2N/4Np2/B2b3q/4RPr1/Nb2P1Qn/bb1N4/1r1NK3/1nq3BB b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 e5 b4 Nh6 d4 Bf5 d6 Ng8 d5 Bg4 Ra3 Be6 Rd3 Bc8 Rd4 exd4 g4 h5 f4 a5 g6 c5 b6 a4 g7 h4 g5 d3 g6 a3 d7+ Ke7 b5 c4 b7 c3 b6 c2 d6+ Kf6 Nh3 a2 Nf2 a1B Be3 c1B Nd2 Nc6 b8B h3 b7 Qe8 d8N h2 d7 Ke7 Ne6 Nd4 d8N Nh6 g8B Ra5 g7 Ra7 Nc5 Ra8 Nde6 Ra2 Na4 Nhf5 Bh7 Bc3 g8B Nh4 Be4 Nb5 Bgh7 Rg8 Bhf5 Ba3 Rg1 h1Q Rg5 Qh2 Bh1 Qc6 Bg4 Bcb4 Re5 Qc4 Bd4 Rg5 e4 Ke8 Bfe2 Bh6 Nf8+ Be6 Ng6 Nc3 Nh8 Bhf8 Bh3 Qc7 Bef1 Qc8 Qg4 Bfd6 f5 Rg7 Bba7 Rb2 b8N Bc7 Nc6 Nb1 Ne7 Qf4 Bb8 Qh6 Bb6 Nc3 Nf3 Bb3 Be2 Rg5 Bhf1 Rc2 Bd4 Nb1+ Kd1 d2 Bc4 Rg6 Be6 Rg5 Ba6 Rb2+ Ke2 d1R+ Ke3 Qb7 Bc8 Qbc6 Bda7 Rd6 Nd3 Rd8 Nd2 Bcd6 Ke2 Qc1 Bg1
RN5b/2rprN2/N2nR1QN/1R3q2/R2PB2p/4qb2/P1n2k1N/1K2R1rn b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 c5 b4 Nc6 bxa5 Nb8 Ba3 Ra6 Bb4 cxb4 Be2 Ra7 Bf1 Ra8 f4 Kf7 g4 e5 c4 b5 d4 h5 Kd2 h4 Kc1 b3 g6+ Kf6 g5+ Ke7 c5 e4 f6+ Ke6 g7 Kf5 a6 e3 a7 Ke4 g6 b4 f7 e2 c6 Ke3 f5 e1Q c7 Ne7 g8N Rh6 f6 Rh7 g7 Nd5 Ne7 Rh6 g8N Nc3 Nf3 Rh7 Bg2 Bb7 c8N Nb5 Nd6 Nc6 Nh6 Rc8 Nc3 Ne5 Nc6 Bg7 f8R Bh8 f7 Qg5 Nce4 Rc7 Rb1 Ng4 Re8 Nf2 f8R b2+ Kc2 Qd5 Re6 Re7 Ndf7 Nd6 Nh2 Qe5 Qh5 Qf5 Rg1 Nh1 Qg6 Ke2 Rd8 Qg3 Rgd1 Qe3 Rb8 Ba8 Rbc1 b1N Rb5 Bb7 a8R b3+ Kb2 Na3 Nc5 Kf2 Rc4 Nc2 Nb8 Bc6 Rca4 Bd5 Nca6 Bc6 Bf1 Be4 Bd3 Bc6 Kc3 b2 Rg1 b1R Rc1 Ra1 Kb2 Bf3 Rg1 Rd1 Be4 Rd3 Rc1 Rd1 Kb1 Rg1 Re1
1q2q1Bn/2B1bN1k/1pp1rN1b/1p3pB1/1Pnr4/N2QN3/R3KPB1/1N1B4 b - - 0 2 illegal: No possible last move
K4R2/N2qB1nP/1qBQ1BB1/b3Q1nb/Qq5n/3P2NB/1b5r/k3B3 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 d4 fxg5 d3 cxd3 Nf6 d4 Ng8 d5 Bb7 Qb3 Ba6 Qd1 Bc8 b4 a5 g4 h5 g6 a4 g5 Ra5 bxa5 Be6 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 h4 Kb4 g7 e5 f6 c5 b6 c4 h5 g3 b7 a3 g6 a2 h6 a1N a6 c3 d3 g2 d6 c2 Kd5 Kb3 h7 Ka2 f7 e4 a7 e3 a8B e2 d7 e1Q Ne2 g1Q Na3 Bc5 f8B Bd4 Nb5 Nc6 b8Q Bb2 Qd6 Nh6 g8B Ne5 g7 Qb4 Ng3 Ng6 Kc6+ Nb3 Bf7 Ka1 g8Q Nf5 Be7 Nd2 Qg7 Rf8 Na7 Ngh4 Qge5 Ndf3 Bh3 Ng7 Bg6 Ng5 Bd2+ c1B Be1 Rf2 Qb3 Bc3 Qa4+ Ra2 Rh2 B1b2 Rf2 Qe8 Rf8 Qgb6+ Kd5 Bd2 d8B Bg4 Bc6 Bh5 Bf6 Qd7 Bde7 Qbg4 Bf1 Ba5 Bh3 Qbd8 Kc5 Qe4 Kb5 Qb4+ Ka6 Bc3 Qab5 Rh2 Qc4 Bb2 Qcb5 Qdg4 Kb7 Qb6+ Ka8 Qd7 Qa4+
B4R1B/N4Qq1/rqrr1R1R/1n1b2b1/2Q2R2/3BkR2/Pbnq2P1/1K4R1 b - - 0 1 legal: proof: c4 a5 e4 b5 b4 g5 bxa5 f5 exf5 d5 cxd5 b4 h4 b3 hxg5 b2 d3 Bg7 Be3 Bh6 Na3 Bf8 Rc1 b1Q Rc2 Qc1 Nc4 Qa1 Nb6 Ba6 Nc8 Bxc8 Kd2 Kf7 f4 c5 f6 Kg6 d6 Kf5 d4 Ke4 d7 h5 f5 e5 d5 h4 f7 c4 d6 h3 a6 h2 a7 Bb7 g6 Qc3+ Kc1 Bc6 f6 Bd5 g7 Na6 Ne2 Nb4 Rg1 h1R Kb1 Qb6 d8R Be7 f8R R1h6 f7 Nf6 g8Q Ne8 d7 Rc6 Qc1 Nc7 Nd4 Rhh6 Nb5 Bg5 Bd4 Rhd6 Rf2 Nc2 Rf3 Qd2 Bb2 c3 Rb8 Qdd4 d8R Qd2 Rf6 Ke3 Bd3 e4 Rde8 Qd4 Rh6 Qg7 Qf1 Qf2 Ree6 Qff6 Qh7 Qd4 Ref6 Qb6 Nd4 Nb5 Rbc8 Rb8 a8B Rb7 Rce8 Ra7 Rf4 Ra6 Ree6 Ne1 Ref6 c2+ Ka1 c1B Kb1 Nc2 Bc3 Nc7+ Nb5 Bb2 Na7 Nb5 Be5 Kd2 Rf3 e3 Qe4 e2 Qc4 Bc1 Bb2 e1Q Bd4 Qe2 Qf2 Bb2 R6f4 Qh7 Bh8 Qg7 Rfh3 Be6 Rg4 Ra3 Re8 Bc3 f8R Bd5 Ree6 Bb2 Qf7 Ra6 Rf3 Qee3 Ref6 Qe2 Rf2 Ke3 Rgf4 Qd2 R2f3+
RQ1BR1K1/q1PrB3/r1rB3q/7N/1kBR3B/n1q4n/2P3Q1/b2bn1B1 b - - 0 1 illegal: No possible last move
2b1r1Q1/2P5/3n2KQ/qq1Qk2N/1BQNPRR1/q1n3Qr/7n/3QbR1r b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 gxf5 c4 Bh3 c3 Bg4 hxg4 dxc3 Na6 c4 Nb8 c5 Bb7 Ra5 Ba6 Ra1 Bc8 Kf2 Ke7 Kg3 g5 b4 d5 e4 a5 c4 d4 h4 a4 f6+ Ke6 c6 a3 b6 d3 b5 a2 f7 d2 h5 Qd4 c5 Bd6 f8R Bd7 c7 Ra4 c8Q Qd3+ Nf3 Qc2 h6 Rc4 c6 Bc5 b7 Qb2 h7 Bb4 b6 Nf6 Rh4 Na6 b8Q Nc7 b7 Nce8 Nc3 Qa3 Nd5 Rc3 Qa8 Nd6 b8Q Qa5 Rb1 a1Q Ba3 Qb5 Rf7 Re8 h8Q Qa5 Qca6 Bc8 Qh6 Qb5 c7 Ba5 Bb4 Qa3 Qba7 Rb3 Qf2 Rc3 Kg2 g3 Kh3 g2 Qg3 g1Q Rg4 Qa7 Q6c6 Qaa6 Qc4 Re3 Qh1 Rc3 Rf1 d1N Qb7 Rd3 Rf8 Nc3 Nf4+ Ke7 e6 Qab6 Rh4 Ng4 Nh5 Nh2 Nd4 Q6c5 Rhf4 g4+ Kh4 Qd5 Rg8 Re3 Qgg1 g3 Rgg4 g2 Qbc6 Qdc5 Q6d5 Rh3+ Kg5 Qa7 Qf2 g1R Kg6 Qaa6 Qhf3 Rh1 Qd1 Nb1 Bc5 Be1 Bb4 Nc3 Qg3 Qab6 Rf6 Q6c5 R6f4 Nf7 Qf5 Kd6 e7 Qba5 Qd7+ Ke5 Qc6 Nd6 Qa8 Rh8 Qc6 Qcb5 e8Q+ Be6 Qf7 Re8 Qg8 Bc8 Q6d5+
QBn5/b3P3/6PB/1kr1BR1Q/2r4n/r1q1nBKN/rQ2NB1r/6bB b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 g4 g5 Ra4 Nh6 Rf4 gxf4 b4 Qf6 h3 Ng8 g5 Bg4 hxg4 Qd8 Kf2 Kd7 d4 c5 e4 a5 d6 f5 g6 h5 g5 a4 d5 h4 g7 f3 g6 h3 b6 a3 b5 h2 b7 a2 b6 a1R Kg3 f2 Ba6 f1R Nc3 c4 Nh3 Qf6 Ne2 c3 Bh6 Ne7 g8B Rf4 Rf1 Nbc6 b8B h1R b7 c2 Bc4 c1B e6+ Ke8 e5 Na7 Bb3 Ra3 d7+ Kd8 Qc2 Be3 Qb2 Nac8 Bd1 Rh2 Ba7 Kc7 d6+ Kc6 d8Q Bg7 b8B Rc4 d7 Bg1+ Bae3 Bf8 Qa5 Qg7 d8B f4+ Kh4 f3+ Kg3 f2 Bdc7 Nd6 Bf7 Nec8 e7 Rh7 e6 Qc3 Qh5 Nf5+ Kf3 R8a5 Be5 Nh4+ Kg3 Rac5 Bg8 Rg7 e8Q+ Rd7 Qd8 Rd2 e7 Bg7 Be6 Bf6 Bg4 Bh8 Bb3 Kb5 Bf3 Bg7 Qd5 Bf6 Qa8 Bh8 Qc1 Rda2 Qb2 Bg7 B5f4 Bd4 Bfe5 Rc7 Bh1 Ba7 Bd1+ Qb3 Nc1 R7c5 Bdf3 Qb4 Ne2 Qb3 Rd1 Qb4 Rd4 Qb3 Rf4 f1N+ Kg4 Qb4 Bf2 Ne3+ Kg3 Qb3 Rf5 Qb4 Qc2 Qc3 Qb2+
1n5r/1Q2r2R/5RKQ/2N1B1P1/Q3BP1R/rbbRR1n1/q2kr3/2R3qr b - - 0 1 illegal: No possible last move, all moves rejected
1Rn3bQ/rn2qN2/Q3Q3/PK1B2N1/2B1B2B/1k2r2r/n1qnP1B1/2Bq4 b - - 0 1 illegal: No possible last move, all moves rejected
r2bB3/N1Pb3K/1n1R1B2/b1PNQ1Qk/2B2B1n/bq2Q3/2BB3b/b3n3 b - - 0 1 illegal: No possible last move
2Q1n3/2B1q1B1/1R1Pk2K/Q2qn2b/P2bb1bR/1N2r2Q/B1b1Qb1Q/4Q3 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 g4 Bh6 h4 Qd6 Nc3 Bf8 Nce2 Qd8 Nf4 gxf4 g5 Ra7 Ba3 Ra6 Bc1 Ra8 g6 b5 Qb3 Ra6 Qd1 Rb6 Bd3 Rc6 Bf1 Rc3 Qc2 Rg3 Qd1 Rg5 hxg5 Be6 Ke2 Bd7 Ke1 Bc8 Ke2 Kd7 Kf3 h5 a4 c5 d4 e5 f7 h4 Kg4 f3 d6 f2 d5 h3 a6 c4 f6 e4 a7 c3 a8Q b4 g7 h2 g6 c2 Kg5 b3 Ne2 b2 Qa5 b1B Bb2 e3 Nd4 c1Q Bc4 f1B Ba2 Qc4 Qde1 e2 Nb3 Bd3 Rb1 Be7 f8Q Qb5 Qf7 Nc6 Qe6+ Ke8 Bc3 Ne5 Qh3 Bg4 Bd4 Qc7 d7+ Kd8 Bc3 Bc5 f7 Ke7 d6+ Ke6 d8B Bc2 f8Q Nf6 Qe8+ Qe7 Bc7 Bd4 Bb2 Rg8 Kh6 Qd5 Qeb5 Re8 g8Q+ Qf7 Qh8 Qe7 g7 Bg2 Qb8 Bge4 Qbb5 Bg6 g8Q+ Bf7 Qeg3 e1B Qe2 Bef2 Qgh7 Bfg6 Qg1 Bh5 Qge1 Rf8 Bc3 Rf7 Qd8 Ne8 Qh8 Rf3 Ba1 Re3 Qc8+ Nd7 Bc3 Ba7 Bg7 Bd4 Rf1 h1B Rg1 Bgf5 Rg4 Bhe4 Rh4 Bfg4 Na1 Bf6 Rb6 Be5 Nb3 Bd4 Qca6 Ne5 Qac4 Bg3 Qeh2 Bf2 Qce2 Nf6 Qha8 Ne8 Qc8+
2rB2q1/4r3/n6R/Q1Q1bN2/K1Q1P2R/Q2Qbr1R/pP1nQ3/1nk1q2B b - - 0 1 illegal: No possible last move, all moves rejected
4q2k/r6b/1NN2N1N/nrQ3P1/1N1Q2nB/PpNR1B2/1b6/qrQ3Kn b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 h5 g4 Bh6 g6 Bg7 g5 Bf8 a3 Ra7 Ra2 Nc6 Rb2 Nb8 Rb4 Ra8 Rg4 hxg4 Kf2 b5 h4 c5 d4 e5 h5 c4 h6 b4 d6 b3 f6 e4 a6 c3 f7+ Kd7 d5 c2 h7 Bh6 f8Q Ne7 a7 Ba6 g7 Ng8 Be2 Nf6 g8N Bg7 Bf3 Bd3 Bf4 c1Q Bg3 Nc6 Bh4 Na5 Nd2 Qa1 Nh6 g3+ Kg2 e3 Ne4 Qc8 Ne2 Ng4 Qf1 Rg8 h8Q Bb2 N2c3 e2 Qd4 e1R Qf5+ Ke8 d7+ Ke7 d8N Rb1 Nf6 Kf8 d6 Kg7 d7 Kh8 Qfc5 Bh7 Qc1 Rb8 a8N Rb5 Rf1 Rg7 Nc6 Qe8 Nb4 Rf7 d8N Ra7 Kg1 g2 Nb6 Nh2 Kf2 g1N Ndc6 Nh3+ Kg2 Nf2 Kg1 Nh1 Rd1 Ng4 Rd3
2N2b2/6r1/2Bq1bb1/knb1QB2/3NBKBR/1Nb1p1rQ/n2PP3/2BB4 b - - 0 1 illegal: No proof kernel
B2r2q1/nr6/nB2B3/4p1k1/QP3B1n/bR3nb1/1B1R1P1n/KQNB2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
KQ3RQ1/4N1n1/4b3/b1nk2Qp/qb2rQ2/2BN3n/1PQr2PR/1Q3Nb1 b - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 g5 cxd5 f5 exf5 a4 h4 a3 hxg5 a2 Bd3 Ra4 Na3 Ra8 Bb1 axb1N Ke2 Kd7 Kf3 Kd6 Ke4 h5 d4 e5 f4 c5 g6 c4 f6 c3 g7 c2 b6 Bd7 b7 Nh6 g8N Bc8 f5 Qd7 f7 Qa4 f6 Qb3 Rh2 Bg7 f8Q+ Kd7 d6 Kc6 d7 Na6 b8Q Qa2 d8Q Rh7 f7 Bb7 Qdc8+ Nc7 Bd2 c1B Nf3 Ng4 Nc4 Qa4 Bc3 Be3 Ncd2 Bg1 Nf1 Ra6 Qfd8 Bf8 Ne1 Bb4 f8Q Re7 d5+ Kc5 Qf6 Rd6 Qf4 Re8 Qcf5 Ne6 Qc2 Bc8 Ne7 Ng7 Nd3+ Kc4 Q5g5 Be6 Nf5 Re7 Qg8 Nf2+ Ke3+ e4 Ra3 Qb5 Ra8 Nd2 Qb1 Rdd7 d6 Qa4 Qh7 Rd8 d7 Nb3 Qg8 Nc5 Qc2 Rde8 d8Q Rd7 Qdb6 Kd5 Qa6 Qb5 Qa1 Qa4 Qab1 Ba5 Qa7 Ree7 Rf8 Bb4 Qab8 Nh3+ Ke2 e3 Kf3 e2 Qfg3 Kc6 Q3f4 Na6 Ke4 e1B Nc5 Rd2 Nd3 Bef2 Ke5 Bb6 Ke4 Nc5+ Ke5 Kb5 Kd6 Re8 Qe3 Kc4 Qe5 Qa3 Kc6 B6a5 Qec7 Ne4 Kb7+ Kd5 Ka8 Nc5 Qcf4 Qa4 Qcd1 Bf7 Qdc1 Re4 Qcc2 Be6 Ne7+
6R1/1nB2rR1/1b2Q1KQ/kNbPR1R1/r1Rn2B1/1Pp1nR1b/1q2B3/7b b - - 0 1 legal: proof: c4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 cxd5 a4 b3 a3 Nc3 Be6 Na4 Bd7 Nb2 axb2 a4 Be6 axb5 Bc8 Ke2 Kd7 Kf3 b1B Kf4 c5 g4 Kc7 d4 Kb6 g6 h5 Kg5 e5+ f6 c4 f4 c3 g7 h4 d6 e4 d5 h3 d7 h2 f5 e3 Be2 Ra5 Qe1 Rh6 Nf3 Ra6 Rg1 h1N Ra4 Qc7 d8R Qh2 f7 Qg3 f6 Ra5 Rc4 Bd7 Nd4 Be6 Re8 Bef5 Re5 Bc5 f8Q Nd7 f7 Ngf6 g8R Qg2 Rg7 Rh7 Qh8 Bfe4 f8R Ng3 Bd2 Nf5 Kg6 Bbc2 g5 Ra4 Rff7 Ka5 b6 Qh2 b7 Bh1 b8R Ng4 Nb5 Nd4+ Rff5 Bb6 Rbg8 Nc5 Rf1 Bce4 Rf3 Nb7 Bc1 Bc2 Ba3 Be4 Bd6 Bg2 Bc7 Bh3 Rd7 Rf7 Qh6 Rf8 Rdg7 Rf7 Kh5 Qf2 g6 Qg2 Rg5 Qf2 Rff5 Bh1 Rf3 Qg2 Rh7 Qf2 g7 Qh2 Kg6 Qg2 Rc8 Qh2 g8B Qg2 Bd3 e2 Rg7 Ne3 Bh7 Qh2 Rcg8 Qf2 Bf5 Qg2 Bg4 Qf2 Qb1 e1B Qf5 Qb2 Qe6 Bh4 Kh5 Bf2 Bd3 Bg3 Kg6 Bf4 Ref5 Bd6 Be2 Bc5 Re5
n4B2/Nq3RNb/Q4qr1/1RQ1Q3/Qb5k/b2r2P1/1pPbQ1QK/2n1N3 b - - 0 1 illegal: No possible last move, all moves rejected
5b2/rqnQ2Nk/4Q3/p4q2/1P1qQQ1B/3Brbq1/B1QQP2R/2K2N1n b - - 0 1 legal: proof: b4 b5 f4 d5 a4 h5 axb5 f5 g4 e5 fxe5 d4 gxf5 d3 cxd3 Qd5 d4 Qd8 d5 Nd7 Ra3 Nb8 Rg3 Qf6 Rg2 Qd8 Rg4 hxg4 d4 Kf7 Kd2 c5 h4 a5 d6 g5 b6 Kg7 e6 c4 f6+ Kh6 f7 g3 d5 g2 h5 g4 b7 g3 d7 Ne7 d6 Nbc6 b8Q Kg7 h6+ Kg6 h7 Nd4 Nh3 g1Q Nf4+ Kg7 Nh5+ Kh6 Qb7 g2 Rh2 Nef5 e7 Ng7 e8B Qb6 d8Q Bg4 d7 Be7 f8Q Nb5 Bf7 c3+ Kc2+ Qge3 Ba2 g1Q Bg2 Ra7 Nd2 Nc7 Nf1 Qa6 Qbd5 Qb7 Be4 Qg2 Qf3 Nf5 Ng7+ Bh5 Q1d4 Bf8 Qe6+ Qg6 Bd2 Ng3 Be1 Nh1 Bg3 Qg5 Qf4 Qf6 Kb1 c2+ Kb2 Qg6 Qde5 Qf6 Qde8 Qg6 d8Q Qf6 Qdd2 c1Q+ Kb3 Qc5 Kb2 Qg1 Kc1 Qd4 Q8d7 Qg6 Qc5 Qgf6 Bd3 Qg6 Qb3 Qe6 Qe4 Qf5 Qcc2 Qgf4 Ne8 Rg8 Bh4 Rg3 Ng7 Re3 Qbc4 Bf3 Qce6+ Qg6 Nh5 Qf7 h8Q+ Qh7 Qhe5 Qf7 Q4c6 Qf5 Ng7 Kh7 Qf4 Qg3 Qce4
2N3Rn/2PB3K/1bQ5/2Rrq1N1/5qP1/2r2b1R/pnkr3r/RQ2R1QR b - - 0 1 illegal: No possible last move
B2Qb3/Kb1nnBB1/B2kBB1R/2rN3p/2qP2Pb/8/8/1QR1nQqq b - - 0 1 legal: proof: c4 a5 h4 b5 g4 g5 hxg5 d5 cxd5 b4 f4 b3 Nc3 Bf5 Ne4 Bc8 Nf6+ exf6 axb3 f5 b4 Ra6 b5 Re6 Nh3 Re7 Ng1 Re5 fxe5 f4 Kf2 Kd7 b4 c5 e4 f5 e6+ Ke7 e5 h6 d6+ Ke8 b6 f3 Ke3 c4 Kd4 c3 Kc5 f4 d4 f2 b5 f3 g6 a4 g7 c2 b7 a3 b6 a2 e7 Kd7 e8B+ Ke6 Ne2 Nc6 b8B Qd7 b7 Qd8 Nc3 Nf6 Bg5 c1N Ba6 f1B Bf7+ Kd7 Bd5 f2 g8B Be7 Bh4 Qf8 Kb6 Nd3 Bg5 Qf7 e6+ Kd8 Rb1 a1Q d7 h5 Be5 Be2 b8Q f1Q Bh6 Qh3 Bg7 Qf3 Rf1 Qh1 Rf5 Bf3 Rg5 Bg2 Rg6 Be4 Rh6 Bg6 Rb5 Qc1 Rc5 Qa1 Qf3 Qag1 Qf1 Ne1 Bf3 Na5 Ba8 Nc6 Qd6 Bb7 Qd5 Bd6 Qe4 Ke7 Rc4 Ba3 Qb1 Bc1 Rc5 Bg5 Rc4 Bh4 Rc5 Ne4 Bef6+ Kd6 e7 Qe6 e8B Ne7 Rc4 Nc5 Ka7 Qe2 Be6 Qa2 d8Q+ Nd7 Nd5 Qa4 Rc2 Qc4 Qa5 Bf7 Rc1 Bg6 B8f7 Rc8 Qd8 Rc5 Bg8 Be8 Bgf7
2R4B/bQ1R2R1/P2N1b2/r1R2Q2/pb2br2/4PkqB/KRn2bB1/3r3R b - - 0 1 illegal: No proof kernel
n2KBB1R/1Brbp2Q/7B/NP1Q1B1P/n5N1/1kr3B1/1n1Q3r/1rq1r3 b - - 0 1 legal: proof: c4 b5 f4 g5 fxg5 d5 cxd5 b4 d4 b3 e3 Qd7 d6 Qh3 axb3 Qe6 b4 Qd7 b5 Qd8 b4 h5 g4 Qd7 g6 Rh6 d5 Rh8 g5 Bg7 Ra3 Bd4 exd4 Qd8 Rg3 Nh6 Rg2 Ng8 Rg4 hxg4 Ke2 Kd7 Kd3 a5 Ke4 c5 Kf5 g3 h4 a4 b6 g2 g7 a3 g6 c4 b5 c3 b7 f6 Nd2 c2 Qh5 a2 Nc4 a1N Nf3 g1R Qh7 Qe8 Bg2 Nb3 Nh2 Ra3 Bh6 c1R Ng4 Nc6 b8B Kd8+ d7 Nd2 Ke6 f5 Bbf4 Nf6 g8B Na5 g7 Nb7 Bf7 Rac3 g8B Rge1+ Be3 Kc7 Bf8 Qd8 Be8 f4 Bgf7 f3 Bg6 f2 Bf5 f1R d6+ Kb8 d5 Nc5+ Kf7 Kb7 Beh6 Qc7 d8Q Na4 d7 R1c2 d6+ Nd5 Bf3 Ka7 B3e4 Ndb6 Bb7 Na8 Rh3 Rb1 Rh2 Rfe1 Rh3 Qc5 Qa5+ Kb8 d8B Bd7 Qb4 Ka7 Bc7 Rcc1 Qb2 Qa3 Qc2 Qb2 Qd3 R1c2 Qd5 Qc1 Rh2 Nb2 Rh1 Ne4 Rh3 Nc5 Rh1 Bc8 d7 Nca4 d8Q Bd7 Bg3 Rh2 Qc7 Rg8 Qf4 Rg6 Qfd2 Rc6 h5 Rc7 Rf1 Bc8 Bec6 Be6+ Ke8 Bc8 Kd8 Bd7 Nce3 Kb6 Rg1 Bc8 Be8 Ka5 Rf1 Bd7 Rf3 N4b6 Nc4+ Ka4 Rd3 Rc2 Rc3 Kb4 Ra3+ Rc3 Ra6 N6a4 Rg6 Rh3 Rg8 Kb3 Rh8 Rh2 Na5+
bnKN1Bk1/b3B1r1/1QQ1Q1BN/1Pr1r3/2p1q2P/3Qr1QQ/7R/1r1q4 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 b4 h5 f4 Nh6 f5 Rh7 g5 Kd7 f7 Ng8 Ra3 Rh6 Rg3 Rh8 Rg4 hxg4 Bd3 Na6 Bf1 Nc5 Bg2 Ne4 Bf1 Nef6 gxf6 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 g5 Kg3 e5 h4 c5 d4 a5 b6 c4 d6 a4 d5 a3 b5 a2 b7 a1R b8Q e4 Qe1 e3 Ne2 Bg7 f8B Ke8 d7+ Kf7 d6 R8a4 Nbc3 R4a3 Nd4 e2 Rh2 R3a2 Nc6 Bb7 Ba3 Nh6 Ne4 Kg8 f7+ Kh7 f6 Qe8 d8Q Ba8 d7 Rb1 Qdb6 Ng8 d8Q Ne7 Nd6 Rg8 Qc3 e1R Bd3+ Kh8 Be4 Rae2 Bg6 Re5 Qce3 Rc5 Qe6 Ree5 Qdc7 Bh6 Nd8 Nc6 Be7 Rbe1 f8Q Bg7 Q8b7 Nb8 f7 R1e3+ Qf3 Qc6 Qe8 Qe4 f8Q Bh6 Qff5 Kg7 Kg2 g3 Kh3 g2 N6f7 g1R Q8c6 Rb1 Q7d6 g4+ Kg3 Rh8 Qd3 Kg8 Qg5 Rh7 Bf8 Qd5 Kf4 Rg7 Qh3 g3 Kg4 g2 Qf4 g1Q+ Qfg3 Bf4 Bb4 R5e4 Ba3 Be5+ Kf5 Qd1 Bb4 Bd6+ Kf6 Bf4 Ke7 Re5 Ba3 Q5f3 Kd6 Qe4 Kc7 Re2 Kc8 Be3 Bc1 Bd4 Bg5 Re3 Bge7 Rcd5 Qbb7 Ba7 Qbb6 Rc5 Nh6+
1rk1Q1q1/3N2r1/q3N1pN/1N2bRn1/NK6/B1Pq2rB/NP1Bq1b1/7Q b - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h5 f5 Rh7 g5 Rh8 Ra4 Nc6 Re4 Ne5 Rg4 hxg4 g6 Nf7 Bc4 Qc7 gxf7+ Kd8 Be2 Qb6 Bf1 Kc7 Kd2 Kb7 Ke2 Qd8 Ke1 Kc7 Kd2 e5 Kc3 a5 h4 d5 c6 g3 b6+ Kb8 b7 e4 h5 g6 c7+ Ka7 b8N Kb7 h6 a4 h7 g2 Na3 e3 Rh5 e2 Nb5 e1Q+ Bd2 a3 Nd7 a2 Ne2 g1R Nc1 a1Q Na2 Rb8 Bh3 Bg7 f8Q d4+ Kb4 d3 c3 Qe2 f7 Nf6 Qe8 Rg8 f8B Ne4 h8N Ng5 f6 Rg3 f7 Be5 Qe1 Rg7 Qh1+ Ka6 Bd6 Bb7 f8N Bg2 c8N Kb7 Ncb6 Qaf1 Na4 Kc8 Ne6 Qa1 Bf4 d2 Nf7 d1Q Nh6 Qdd3 Bd2 Qaf1 Kb3 Qf6 Ba3 Qff1 Kb4 Qf6 Nef8 Qc6 Ne6 Qa6 Qe7 Qg8 Qf7 Nh7 Rf5 Ng5 Qe8+
1bq1R1r1/1B6/QN3p1n/R1Q4B/BknqB1Bn/1n4P1/Q2r1Pq1/BK6 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 b4 a4 b3 Nd2 b2 Ndf3 Ba6 h5 b1Q Nh4 gxh4 Qd4 Qa2 Qd1 Bb5 axb5 Qa4 Kd2 Qe4 Ke1 Qg6 hxg6 Qe7 Kd2 Qg5+ Ke1 Qd8 Kd2 Ke7 e4 d5 c4 a5 Kc2 h5 b6 f6 e6 d4 g7 a4 b7 h3 e5 a3 g3 a2 c6 h4 c7 h2 c8B h3 c5 Na6 b8Q Qe8 c6 Nc7 Qh5 Ra3 Qa7 Nh6 g8Q Rd3 Qa6 Na8 c7 Nb6 Bb7 Qc8 Nf3 Rd1 Bg2 d3+ Kb2 d2 Re1 h1Q Kc2 h2 Bb2 Qg1 Qhg5 h1Q Re3 Qd7 c8B Qd4 Qf5 Qh3 Qf7+ Kd8 e7+ Kc7 e6 Kd6 e8B Rg8 Ne5 Kc5 e7 Kb4 Nd7 Qf1 Bgc6 Qfg2 Q7e6 Qhg4 Bh5 Q4h3 e8B Bd6 Beg6 Bb8 Qf7 Qhg4 Re8 Q4h3 Q7e6 Qhg4 Qee2 Nc4 Nb6 Q4h3 Qfe5 Qhd7 Bge4 Qc7 Bcg4 Qc8 Rc1 a1N+ Kb1 Qf5 Ka2 Nb3 Ra1 Qc8 Qf5 Re1 Bd7 d1N Kb1 Rg1 Ra5 Nde3+ Ka2 Rh1 Ba4 Rd1 Ba1 Rd3 Qe5 Nef5 Kb1 Nh4 Qa2 Rd2 Qc5+
2nrr1Qr/k2P3N/R2N1nB1/3P1p2/1B1Q1rn1/2b2q2/Bq6/1QB2BKB b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 g4 g5 Ra4 Nh6 Rf4 gxf4 b4 Qf6 h3 Ng8 g5 Bg4 hxg4 Qd8 Kf2 Kd7 d4 Kc8 e4 Kb7 e6 c5 e7 a5 e8B f5 g6 h5 g5 h4 g7 c4 e5 c3 d6 f3 e6 c2 d7 a4 b6 h3 g6 a3 b5 h2 e7 a2 Na3 a1R Nh3 Qc8 Nc4 R1a5 Ng5 R5a7 Nh7 Na6 Nd6+ Kb8 b7 Nf6 g8B Nc7 g7 Ncd5 Bg6 Qc6 e8B Nb6 Ba2 Nc8 g8Q Bg7 d5 Qc3 Qd4 Qb2 Bh5 Ra4 Beg6 Rb4 Rg1 h1Q Rg2 Qh3 Kg1 Rba4 Re2 Rc4 Re6 Qg4+ Kh2 f2 Kh1 Qd1 Bf3 Rb4 Bg2 Qf3 Kh2 Rba4 Bh1 Rb4 Bd3 f1N+ Kg1 Ne3 Bf1 Ne8 Rf6 Ng4 Re6 Nb6 Rf6 Ka7 Re6 Rd8 b8B+ Ka8 Bc7 Nc8 Ba5 Nef6 b6 Ra4 b7+ Kb8 Qd1 Rf4 Bb4 Ka7 Qd4+ Nb6 Bcd2 c1R Be3 Re1 Bc1 Re2 b8Q+ Ka6 Qc8+ Ka7 Qc2 Re1 Qb1 Re2 Re3 Re1 Rc3 Ree8 Rc5 Nc8 Rc6+ Ka8 Rb6 Ka7 Qe3 Ne4 Qd2 Bc3 Qd4 Nef6 Ra6+
2Q2q2/KR1b1N2/4r1Q1/1PQr1PB1/Br1pr1QQ/k1bn2B1/1Q1bb3/5N2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 h4 Kf7 b4 Qb6 g4 Qc6 f5 Qc7 h5 Nc6 Ra3 Qd8 Rf3 Ne5 Rf4 gxf4 g5 Ng6 hxg6+ Ke8 Kd2 h5 Kc3 e5 Kc4 a5 f7+ Ke7 b6 d5+ Kb5 d4 c4 h4 g7 h3 b7 f3 b8B a4 g6 h2 c6 f2 c5 a3 c7 a2 Kb6 a1B c6 Kd6 Qb3 e4 Bg5 e3 Qb2 e2 Nh3 e1R Nd2 Rh6 Bb5 f1B Ba4 Ne7 g8Q Ra5 g7 Rd5 b5 Ng6 Ka7 Bd7 c8Q+ Kc5 c7 Be2 Nf1 Ne5 Rg1 Qe7 Qd8 h1R c8Q+ Rc6 Qh7 Nd3 g8Q Bh6 Qhg6 Qf8 Rg4 Rh2 Bg3 Rf2 Q8g7 Rf4 Rh4 Re4 Qg8 Rb1 Rh5 Bg7 Rh7 Be5 Qdf6 Bf4 Qfh8 Be3 Rg7 Bd2 Qh4 Rc1 Rh7 Rc4 Q8g7 Rb4 Qg8 Qd8 f8Q+ Kc4 Qfd6 Qf8 Qe5 Be8 Rb7 Bd7 Bd8 Kc5 Ng5 Kc4 Nf7 Kc5 Qa3 Bac3 Bg5 Kc4 Qb2 Kc5 Qd8 Re6 Q8g7 Rb3 Qc8+ Kb4 Qb1 Ka3 Qc2 Rdd6 Qec5+ Rb4 Qge5 Qe8 Qef4 Qf8 Qfg4 Rd5 Qb2+
2Q2QNq/1Bb3r1/2k1B1Pn/3rPB1p/1BK1p1n1/2n5/R3NBB1/2rN3b b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 h4 Nb8 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 f4 e5 fxe5 d6 e6 d5 b4 Na6 e4 Bd7 e5 Bc8 Ra3 Nb8 Re3 Nh6 Re2 Ng8 Re4 dxe4 g4 f5 c4 h5 g6 a5 c6 f4 g7 f3 c7 a4 b6 a3 e7 a2 b5 a1N c5 Nb3 b7 Qd5 c6 Qd6 b6 Nf6 g8N Qb4+ Bd2 Rh7 g5 Nd4 g6 Qa4 Nc3 Qa7 Qc2 Qa4 Bg2 Bg7 Rh2 Nb5 Nd1 Bg4 c8B Nbd7 b8B Bf8 b7 Rg7 c7 Nc3 Ne2 Ra5 Ba7 Rd5 Bf2 Qa8 b8Q Bh3 Qb4 Ng4 Ba6 Nh6 c8B Nf6 Bf5 Nfg4 Qd6 Na4 Bb4 Nc3 Bd4 f2+ Kd2 f1R Be6 Rb5 Bf2 Rg1 Qc1 Rd5+ Kc2 Rh1 Kb3 Qb8 Kc4 Qd8 Bf3 Bg2 Qc5 Rf1 Bf5 Bh1 Bg2 Qd7 Qd6 Qe6 Qb8+ Kd7 Qa8 Kc7 e8B Bd6 Bf7 Qf6 Qf8 Kc6 B7e6 Qd8 Qg5 Qe8 Qd8 Bc7 Qc8 Re1 Rh3 Rf1 Rd3 Re1 Rd2 Qd8 Ra2 Qe8 Nb2 Rc1 Nd1 Ra1 Qf7 Qd8 Nf6 Qg8 Qff8 Qh8 Ng8 Rc1 Bb7#
2B1b1QB/Nn2rn2/1Nr2P1R/1K2pQ2/2n1Q3/2k1Q1N1/1bP1Q2p/1q1Q1b2 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 gxh5 g6 h6 g5 h4 Na6 b4 Rh7 h5 Nb8 Ra3 Rh8 Rah3 Bb7 R3h2 Bc8 Rh4 gxh4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 h7 a5 f6 a4 b6 d5+ Kb5 a3 b7 d4 f5 e6 f7 h3 h6 a2 c6 a1N c7 d3 Nd2+ Kd4 Ne2+ Ke5 Bb2+ Qd4 Ng3 Nc6 b8Q Ra6 Qb6 Bg7 f8Q Bd7 c8N Nb3 Na7 Be8 Nc4+ Kd5 Qf7 Qg1 Qe3 d2 Qde2 d1B Nb6+ Kd6 Qf6 Nba5 Qh4 Be5 Qhe4 Nc4 Bg2 Bd4 Bf3 Qf1 Bg4 Bg7 Ba1 Bb2 Rh2 Nf6 Rh1 Nd7 Rh2 Rf8 h8Q N6e5 h7 Rf7 Qg8 Re7 h8Q Nf7 Qh5 Qg1 Q2g2 Bf3 Qge2 Bg2 Qgg6 Qb1 Qgg5 Ba3 Bh8 e5 f6 Bf1 Be6 Bb2 Qgf5 Nc5+ Bd7 Nb7 Qd1+ Nd2+ Qhe2 Ra3 Rh1 Rc3 Rh2 Rc6 Bc8 Ng5 Rf2 Nf7 Rf4 h2 Rh4 Bd4 Rh6 Nc4 Ka4 Na3 b5 Kc5 Nd5 Nbd8 b6 Nc4 b7 Rd7 b8Q Nb7 Nb6 Re7 Qeg5 Ba1 Qg8 Bb2 Qa8 Nd2 Q4f3 Kd4 Qff2+ Kc3 Kb5 Nc4 Q2f4 Nfd8 Q4e4 Nf7 Qb8 Ree6 Qbd6 Re7 Qc5 Ree6 Qcf2 Re7 Qfe3+
2N2N2/1Qp1RRB1/K1n1Nr2/R6q/1b6/P1b3rp/Q2NP2b/n1rk1NN1 b - - 0 1 illegal: No proof kernel
1Nq2N1N/B6k/N1Q2qn1/bPR5/pR5N/P2R4/Kprbrn2/4bN1Q b - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 h5 b4 a5 c4 a4 f4 Ba6 f5 g6 Bh3 Qf6 fxg6 Qb6 g5 Qa5 bxa5 b4 Bg4 Bb5 cxb5 hxg4 Kd2 f5 Kc2 c5 Kb2 d5 e4 d4 h4 c4 a6 b3 a7 d3 e6 g3 g7 d2 h5 g2 g6 f4 e5 f3 a3 f2 h6 f1Q e7 Qf2 h7 Qh4 Nf3 g1B Rh3 Qg5 Nh4 Nf6 g8N Ne4 g7 Kf7 e8R Nc5 Nf6 Qg4 g8N Kg7 e6 Nbd7 e7 Ne4 Rd3 Bf2 Rc8 Ne5 e8Q Be1 Qc6 Bb4 Ne7 Re8 h8N Ba5 Nd7 Nf2 Neg6 Kh7 Nb8 Qe6 Qdf3 d1Q Nd2 Qf6 Qh1 Qg4 Rb1 c3+ Ka1 c2 Nf1 Qge6 Be3 c1B Bd4 Bcd2 Nf8+ Kg7 Rb2 Ng6 Qce4 Qg4 Nc6 Rb8 a8N Be3 Nc7 B3d2 Ba7 Qgf5 Qc4 Re2 Na6 Rb7 Qc2 Rc7 Ncb8 Rc3 Rc4 Qc8 Rb4 Rc7 Qc3 Rc6 Rc2 b2+ Ka2 Kh6 Qc4 Kg7 Qce4 Kg8 Rcc3 Rc4 Qc6 Kg7 Rcb3 Rc2 Rbc3 Kh6 Rc5 Kg7 Nfd7 Kh7 Nf8+
4b2n/4rR2/R2bPK2/1QQ2R2/Rp1B1q2/1Nq1R3/p1BPk1bn/rQ5R b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 h3 gxh3 Kd7 h4 Ke7 h5 Ke8 b4 c5 a5 b6 Na3 Bf5 Nc2 Be6 axb6 Bf5 b5 Bc8 Nb4 cxb4 Kf2 Ke7 Kf3 a5 Kf4 f5 Kg5 f4 e4 a4 h4 g6 b7 a3 b6 f3 h6 f2 h7 Qe8 d6+ Ke6 h5 Bg7 h6 Nf6 d7 Qf7 d8R Ra7 Bb2 Qg8 Qb1 Qf7 Ne2 Bf8 Bd4 Ng4 Nc1 Ra5 Bd3 f1B Bc2 Bd7 Nb3 Nc6 b8Q Ne7 b7 Nh2 Qc7 Be8 b8R Bg2 Rb7 a2 Qc5 Ra7 Rd5 Rg8 h8R Qf3 h7 Qc3 Rd8 Rg7 Rg8 Rf7 h8R Rf1 Rg7 Rc1 Rf7 Rf1 Kh4 g5+ Kh5 g4 Kg5 g3 Rh6+ Ng6 Rbb8 Ba4 Ra8 Re7 Rd7 Bb5 Ra4 Rd1 Rd8 Be8 Rhf1 Rc1 R1f5 Re1 Rh3 Nh8 Rda8 Bf1 R8a7 g2 Rg3 g1Q R7a6+ Kd7 Kf6 Qf2 Rh3 Bg2 Rd3 Qf4 e6+ Kd8 Qa5+ Kc8 e5 Kb7 Ra8 Kc6 Qb6+ Kd5 R8a6 Ke4 Qc5 Ra7 e7 Rf1 Be3 Kf3 Bd4+ Ke2 e6 Bd7 e8Q Bd6 Qb8 Be8 Qbb5 Re7 Qb2 Rf2 Rh1 Rf1 Qb1 Rd1 Qb2 Ra1 Qc1 Bf3 Qb1 Bg2 Re3+
BKnn1B2/4Q3/PP1BB2N/bR1r2p1/6q1/Q2Bq3/p1BQ4/kb1nr1R1 b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 c5 gxh5 Qc7 d4 Qb6 dxc5 Qd8 a4 b5 a5 Bd6 Nc3 Bf8 Qd3 a6 Na4 bxa4 Qxa6 Qb6 Qa7 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 d5 e4 g5 c4 f5 h4 a3 b4 a2 h6 f4 c6 f3 h7 f2 b5 Bb4 h5 Bc3+ Kc5 d4 b6 d3 h6 d2 c7 d1Q Nh3 Qe2 Ba3 Ba6 c8B+ Qd7 Rb1 Nf6 Rg1 Qc2 Rb5 Be1 Bd3 f1N Nf2 Qb1 Bb7 Ne3 Ng4 Re8 h8B Rf8 h7 Nd1 Nh6 Nc3 Bg7 Qb2 h8Q Rg8 Bf8 Qf7 Bb4 Nbd7+ Kc6 Nd1 Kc7 Qa3 c5 Rd8 c6 Qh5 Ba8 Qg4 Bbd6 Nc5 Qh7 Bc8 Kb8 Ne8 c7 Nb7 a6 Bd7+ c8B Ba5 Bc2 Qe3 Bd3 Nc5 Qc7 Nb7 Qc5 Rg6 Qa3 Rf6 Qg7 Rf1 Qh7 Re1 Qg6+ Nf6 Qh5 Nd5 Qh2 Ne7 Qf2 Re8 Qd2 Nd8 Ng8 Kf7 e6+ Kg6 Nh6 Kf6 Bc2 Bc6 Bd7 Nc8 e7 Bd5 Bf5 Bb3 Bd3 Bc2 Be6 Bb1 Bc2 Nf7 Bd3 Rd8 e8B Rd7 Bc2 Nd8 Bd3 Qef3 Bg6 Qe3 Bc5 Ke5 Bcd6+ Kd4 e5 Rc7 Bh7 Rc5 Bhe4 Rd5 Bc2+ Kc4 Bed3+ Kd4 Bf7 Nb7 e6 Nd8 e7 Rf5 Bfb3 Rd5 Qe2 Kc3 e8Q Qh4 Qe7 Qg4 Qa4 Kb2 Qa3+ Ka1 Qd2 Rc5 Bf7 Rd5 Be6
3B3K/1qrnp2Q/pbR1N3/1k1N2Q1/1P1r2B1/6PQ/1qBqQn1Q/2b2Q2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 f6 Bd7 Qf3 Bf5 Qd1 Bc8 f4 Nh6 b4 Nf5 h3 Be6 Ra3 Nh6 Rf3 Bg4 hxg4 Ng8 f5 Nh6 Rf2 Ng8 Rf4 gxf4 Kf2 Kd7 Kf3 c5 Ke4 h5 d4 a6 d6 f3 g5 h4 g6 h3 f7 f2 d5 c4 b6 h2 b7 c3 g7 c2 f6 Rh3 Kf5 Rf3+ Kg6 Rd3 Kh7 Qc8 Nc3 Qc6 Kh8 Rd4 Bd3 f1Q Nf3 Ra7 Ng5 Qg1 Bf4 c1B Qe2 Bb2 Ne6 Bc1 Bc2 Nh6 g8B Qe3 g3 Bb2 Rc1 h1Q Bgh7 Rc4 Bhf5 Qd2 Bg4 Qf3 Be3 Qf1 Bb6 Qh3 Bd8 Qa4 Qh2 Nc6 b8Q Rf4 Qb5 Qd4 Qbe2 Qg2 Qh3 Kc8 d7+ Kb7 d6 Nb8 Nd5 Kc6 Qh2 Qa1 Qh3 Nf5 Qh2 Bh6 f8Q Ne3 Qf7 Qb6 Qh7 Rd4 f7 Qb7 f8Q Nd1 Qff1 Be3 Bb6 Nc3 Q7h3 Bg1 d8Q Rc4 Ndc7 Qd5 d7 Qc8 Ba5 Qd2 Bb3 Ne4+ Rc3 Qa2 Bc2 Bc1 Qg8 Qb2 d8Q Be3 Qg6 Nf2 Qgh7 Nd7 Qdg8 Qa8 Nd5 Kb5 Bc7 Bb6 Bd8 Rc7 Qg5 Qb7 Qf7 Nd3 Qfh7 Rd4 Rc4 Nf2 Rc6+
qB1Q4/2BrBkP1/3rN3/QB1p4/nKn3nB/r1B1qR2/b1PQp3/N7 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 h4 Bg7 b4 Qa5 g4 Qc7 f4 Bf8 f5 Qh2 Ra3 Bg7 Rf3 Qc7 Rf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Qd8 Kd2 d5 Kc3 a5 g7 e5 g6 h5 f7+ Ke7 f8B+ Kf6 c6 a4 c7 a3 b6 f3 b5 e4 b7 a2 b6 a1R Bb5 f2 Nf3 f1N Ng5 h4 Bb4 h3 Qd2 e3 Ne6 Nd7 b8B e2 b7 Ne3 Rf1 h2 Rf3 Nh6 g8Q h1Q g7 Qe7 Qd8 Kf7 f6 R1a7 Bb2 Qf8 Be7 Nc4 Kb4 Nc5 Bc3 Bd7 c8Q Qh3 Qcc7 Ng4 Qb6 Rh6 Bc7 Na4 b8B Bc8 Qa5 Ba6 Bb6 Rd7 B6c7 Kg6 f7 Qe8 Rf4 Qe3 f8B Ra7 Bef6 Kf7 Rf3 Rg6 Bh4+ Rf6 Nf4 Rfd6 Bfe7 Qd3 Qc8 Nf2 Qe1 Nd1 Nd2 Nce3 Bc4 Nb6 Qa1 Ng4 Nb3 Qe3 Qd2 Nb2 Qa2 Qd8 Na1 Qf8 Bd3 Bc4 Qa3 Ba2 Bb5 Ra5 Ba7 N2c4 Qa8 Qb8 Qa4 Qb7 Qd8 Qa8 Bab8 Ra6 Qb3 Ra3 Qa4 Nce5 Qa7 Na4 Qa5 Nc4 Ne6+
Rr1b4/p2R1NR1/2P1pR2/P1QB3N/1k4R1/2bn2KQ/5rR1/1N1rr1rq b - - 0 1 illegal: No possible last move
4rBQr/2pQ4/N1P1QQ1k/p1P1b2n/3Q2rq/2R1N3/1Rr1Qb1q/1K4N1 b - - 0 1 illegal: No possible last move
k1rNbrRR/1n1N1p2/3b4/2BPQb1P/n7/R3R1p1/bR3R2/nQQ4K b - - 0 1 legal: proof: d4 a5 g4 d5 b4 h5 gxh5 e5 bxa5 e4 c4 Qh4 cxd5 Qd8 f4 Be7 f5 Ba3 e3 Bf8 Bd3 exd3 e4 Qf6 e5 Qe6 fxe6 Bd6 Nc3 Bc5 Nb1 Bf8 Kf2 Kd8 Kg2 c5 a4 Kc7 h4 b5 d6+ Kb7 d5 g5 e7 c4 e8R g4 a6+ Ka7 d7 c3 d8Q b4 e6 b3 e7 d2 a5 b2 h6 c2 h7 g3 h5 Bg7 Nc3 b1B Nh3 Bh6 Rf1 Bf8 Ra2 Bh6 Ng5 Bf8 Ba3 c1N Na4 Bh6 Nb6 Nc6 Rf2 Be6 Rb2 Rc8 Nd7 Bbf5 Qb6+ Ka8 a7 Bf8 Bc5 Nb3 Kh1 Nd8 Qc1 Nf6 Qb5 Rg8 h8R d1B Qd3 Ne4 Qdb1 Rg6 Rg8 Nc3 Rh8 Na4 Rg8 Kb7 a8R Bdc2 Rh8 Rg8 Ra6 Bcd3 Ra8 Bc4 a6+ Kc7 a7 Nb7 Rb8 Na1 a8R Ba2 Ra7 Bd3 Ra6 Bb5 Rba8 Bf5 Rg6 Nc3 Ra3 Na4 Re6 Bc6 Ree3 Bb5 Rd8 Bc6 e8Q Bd6 Qe5 Rf8 Nf6 Kb8 Ne6 Ka8 Nd7 Bb5 Re8 Bc6 Nd8 Bb5 Re6 Bc6 Rg6 Bb5 Rgg8 Bc6 Nf6 Be8 Nd7
3R1rrk/1P1n1Qn1/R1N2N2/6Rn/3bR1rp/1Q2Pbpn/2N3BR/1K2R3 b - - 0 1 legal: proof: c4 b5 g4 f5 gxf5 e5 d4 g5 a4 d5 axb5 g4 h4 Qg5 hxg5 Nh6 Be3 Nd7 cxd5 Nb8 d6 Ng8 d5 Ne7 Bc5 Ng8 Bd4 exd4 Kd2 Kf7 Kc2 Kg7 f4 h5 b4 c5 b6 a5 b7 h4 g6 g3 f6+ Kh6 g7 Kh7 e3 c4 d7 c3 d8R a4 f5 a3 f7 a2 f6 Bc5 f8Q Bb6 b5 Bg4 d6 Bf3 f7 Nf6 g8R Ba5 d7 Nh5 b6 Be2 Rg5 Bf3 Re8 Rg8 d8R Ng7 Rh2 Nd7 b8N Kh8 b7 Bb6 Ne2 d3+ Kc1 c2 Bg2 Bd4 Re4 Ra4 Nec3 d2+ Kb2 c1N Na3 Rb4+ Qb3 Ne2 Re1 a1R Nc6 Nf4 Nc2 Ra8 Kb1 d1N Nd5 Nfh5 Nf6 Nf2 Qe8 Nh3 f8R Ra5 Ra8 Rf5 Ra6 Rf4 Qf7 Rg4 Rfa8 Rb5 Rd8 Rf5 Qe8 Rff4 Nh7 Rf7 Nf6 Rff8 Qef7
1RN1nN1K/NN2B2Q/5Pb1/1p4N1/1pNrn1q1/2Q2r2/1P2kp2/rQb2R2 b - - 0 1 legal: proof: f4 f5 g4 h5 gxh5 e5 fxe5 d5 c4 a6 cxd5 f4 e4 Qd7 Bd3 Qf5 Bb5+ axb5 exf5 Rh7 Ne2 Rh6 Ng1 Rh8 Kf2 Kf7 Kf3 c5 Ke4 g5 d4 b4 a4 b5 h4 f3 a5 f2 h6 c4 h5 c3 a6 c2 e6+ Kf6 e7 g4 e8Q g3 a7 g2 h7 Bd6 h6 Bd7 Nd2 Kg5 Qc8 Bg3 d6 Nc6 d5 Be8 d7 Bh4 d8N Ne5 d6 Ng4 d7 Ne7 Nc6 Bh5 d8N Rb8 a8N Bf7 Nh3+ Kh5 Nb6 g1Q Nb7 Bc4 Na7 Nc6 Ng5 Bf7 Ndc4 Rf8 h8N Nd4 h7 Nb3 Ng6 Nd2+ Kd4 Qg3 Rf1 Ne4 Bd2 Qh3 Qb1 Ngf6 Ke5 Kg4 h8Q c1R Qh7 Ne8 Be3 Ra8 Bc5 Rd1 Be7 Rd4 Qc6 Kg3 Nbc8 Qg4 Ra6 Kg2 Rb6 Kg3 Nc5 Kg2 Rb8 Kg3 Nb7 Kg2 Nh3 Kf3 Ng5+ Ke2 Qc7 Rh8 Nf8 Bg6 Qc6 Bg3+ Ke6 Bf4 Qc7 Bc1 Qg3 Rg8 Qc3 Qg2 f6 Rh8 Qg7 Rh3 Qh6 Rf3 Qh7 Bf5+ Kf7 Qg4 Kg8 Bg6 Nc6 Ra4 Kh8 Ra1 N6a7
5R2/K2pbQRq/1Pqkr1bB/1r2Q1N1/P3p1nR/2R1Q3/2pR1R2/N4n2 b - - 0 1 illegal: No possible last move
3b1R1Q/1RP1Rr1q/2pNK2p/1R1R2Bk/b5n1/1N1RQP2/6np/2N1qq2 b - - 0 1 illegal: No proof kernel
Q2q4/1pQ1N1nr/3Q3R/6kb/PP1q1Bq1/Nr3p2/1N1N2Np/2R2KnN b - - 0 1 legal: proof: f4 a5 d4 d5 b4 g5 h4 e5 hxg5 c6 fxe5 a4 e3 Qd6 c4 c5 cxd5 Qd8 Bc4 Bd6 Bb3 axb3 Nh3 c4 Ng1 Bc5 dxc5 Ra4 Na3 Ra7 Nb1 Ra8 a4 Ke7 g4 f5 c6 h5 d6+ Ke6 d7 h4 c7 h3 e4 b2 g6 c3 g5 f4 g7 f3 g6 c2 Kf1 Na6 Ne2 Rh4 Ng3 Rb8 Na3 b1Q Bf4 Nf6 g8N c1Q g7 Qcc2 Ne7 Ne8 g8N Qca2 Nf6 Kf7 e6+ Kg7 e5 Rg4 Nfe4 Qbb2 Rc1 Nc5 Qd6 Rh4 Nd2 Rh7 Rh2 Qab1 Nh1 Qe4 Nf5+ Kg6 e7+ Kh5 e6 Qbd4 Nh4 Nb3 Ng2 Ng7 e8Q+ Qg6 Qg8 Qg4 e7 Ra8 e8N Ra6 Ne3 Rc6 Ng2 Rc3 Qc4 Re3 Qca6 Rd3 Qa8 Rc3 Qe7 Rd3 Nd6 Kg6 N6c4 Rc3 Ra1 Nc1 Nb2 Ne2 Rc1 Ng1 Qc5 Rb3 Qd6+ Q8f6 d8N Kh5 Nc6 Qd8 Ne7 Be6 c8Q Bf7 Ne3 Kh4 Qcc7 Bh5 Rg2 h2 Rg3 Qgd7 Rg6 Qe6 Rh6 Qg4 Bg3+ Kg5 Ng2 Qh4 Be5 Qhg4 Bf4+
5kn1/8/1pnNB1q1/1PBQ4/KNp3p1/QNN2nNn/1NP1n1b1/4r1RB b - - 0 2 legal: proof: d4 f5 e4 e5 exf5 b6 dxe5 Ne7 a4 Na6 a5 Nb8 a6 Ng8 f4 h5 g4 Rh7 b4 Rh8 g5 Be7 Ra3 Bf6 gxf6 Rh7 Rg3 Rh8 Rg4 hxg4 Bb2 Nc6 Qd3 Rb8 Bc1 Rb7 axb7 a5 Qd1 Nb8 Kd2 g5 Kc3 d5 Kb3 c5 h4 d4 b5 d3 f7+ Ke7 f8Q+ Kd7 f6 c4+ Ka4 d2 e6+ Kc7 h5 g3 e7 Kd6 e8B+ Ke6 h6 g2 h7 g4 f7 Qd5 f5+ Kf6 Ne2 g1N Bg2 Nh3 Ba3 Qe5 Rg1 Qc3 Bh1 Na6 b8N Qb2 Bd7 Ne7 Nc6 Bb7 Nb4 Ng8 Be6 Nb8 Ng3 Bg2 Nc3 Nc6 Qd6 Kg7 f8N Qc1 Nd7 Qb2 Qc1 d1N Qd5 Qa1 Nc5 Kf8 Nb3 Qb2 Nca2 Qg7 f6 Qg6 f7 Nce7 Bb2 Nc6 Bd4 Nc3+ Ka3 a4 Bc5+ Kg7 f8N Ne2 Nd7 Nh6 Qcd2 Re8 h8N Ng8 Qc1 Re7 Ne5 Kf8 Bd4 Re8 Nc3 Re7 Ned3 Re8 Ka2 a3 Nb2 Re7 Nf7 Re8 Ka1 a2 Bc5+ Re7 Nd6 Re8 Nbd1 Re7 Kb2 a1N Ka3 Re8 Na5 Nb3 Nb2 Nd2 Ka4 Nf3 Nb3 Ned4 Bd7 Re1 Be6 Ne2 Qa1 Nd8 Qa2 Nc6 Qa3
kBK2RQn/B2B2pQ/3rp1B1/Pp1r1q2/1P4R1/pB1N4/5b1Q/3rn1B1 b - - 0 1 illegal: No proof kernel
Rrq2Q2/2PBn1RK/1pp2bP1/1r6/5RN1/1R2rp2/2QR3p/BnRQ2k1 b - - 0 1 illegal: No possible last move, all moves rejected
1K2R3/p2Q1Q2/B2r1P2/3NQpQq/Nk2pr2/r3n1Q1/P1b2pnQ/1B2B3 b - - 0 1 illegal: No proof kernel
2rr1q2/1K1NQNQp/n5N1/p2n3p/NNp3P1/4BkRP/NR5Q/4q1b1 b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 a5 cxd5 b5 b4 g6 a4 Nc6 axb5 Na7 b6 Ba6 b5 Nc6 bxa6 Nb8 Be2 Kd7 Bf3 Ke8 Bh5 gxh5 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 d4 c5 g4 e5 f4 c4 a7 Bh6 d6 Bf8 d5 Qc8 b7 Nf6 Kb6 Bg7 h3 Re8 d7 Ng8 d8N Nc6 b8Q Bh6 f6 Nge7 f7 Nf5 f8Q Ng3 f5 Re6 f6 Nf5 d6 Nb4 f7 Ng3 Qg7 Nc2 f8N Ne3 Ra2 Ngf1 Nf3 Bg5 Nc3+ Kf4 Nc6 e4 d7+ Rd6 d8N Be7 Nh4 Bf6 Rb2 Be5 Qe2 Bf6 Rh2 Nd2 Nf7 Nb3 Nd7 Qf8 Rg2 Nc5 Na2 Na6 Kb7 Bd4 Ncb4 Bc5 Qc7 Rc8 a8N Bb6 Qc2 Bd4 Ng6+ Kf3 Qd8 Nd5 Qe7 e3 Nab6 e2 Na4 e1Q Bh6 Bg1 Be3 Rd8 Qd2 Rc6 Qc2 Rcc8 Qd2 Nf6 Qdd6 Nd5 Qc7 Re8 Qh2 Red8 Rg3+
2QKBrB1/n2B1N1B/4ppBp/R4Pb1/R3q1k1/R5B1/1P1p2q1/1q1r1Q2 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 d4 Bb7 dxc5 d4 Ra5 Qd6 Ra1 Bd5 exd5 Qd8 h4 Nf6 g4 Bg7 f5 Nh5 Nc3 Kf8 Nce2 Ke8 Nf4 gxf4 g5 Nd7 Qe2 Nhf6 Qd1 Ne5 h5 Ng6 hxg6 Ng8 Qf3 Bh6 Qd1 Bf8 Kf2 Kd7 Kf3 a5 Ke4 a4 Ke5 a3 c4 f3 d6 h6 c6+ Kc8 c7 Kd7 c8B+ Ke8 c5 a2 g7 f2 c6 f6+ Ke6 d3 c7 Ra4 b6 Ra5 b7 Rd5 b8Q Rb5 g6 Rh7 Rh3 Rb4 Be2 f1Q Bf4 d2 Bg3 Qg2 Qf1 Rb3 Nf3 Re3+ Ne5 Rh8 Bh5 Re1 Bb7 Qe4 c8B Rd1 Rh4 Qc7 d7+ Kd8 Bd5 Qb7 Bc6 Qa8 Kf7 e6 Ba4 Ne7 g8B Qg2 g7 Qae4 Bg6 Nc6 B8h7 Bc5 g8B Na7 Qa8 Kc7 Ke8 Kd6 Kd8 Be3 Nf7+ Kc5 Rf4 Kd4 Rf3 Bf4 Ra3 Bg5 Ke7 Qc2 d8R+ Qd5 Rf3 Ke4 Be8 Qdc6 Rd5 Qd3 Kd8 Qe2 Ra5 Qg2 Bcd7 Qb7 Rb1 a1Q Qc8 Qa2 Ra1 Qb1 Rf4+ Ke3 Rfa4 Q7e4 Qb5 Kf3 Qf1+ Kg4 R1a3 Qb4 Nd6 Qf4 Bg8f7 Rf8 Bfg8 Qfe4 Nf7
1qn4k/Np3P2/1n2q1BQ/3RR3/1pQp4/2r2R2/Qp1P2QB/1b1n1QKQ b - - 0 1 illegal: Other
3K1N1q/Q1pN4/2Q2pR1/3QPN2/ppB1n1Rp/2P5/1kb2n2/1brN1N1N b - - 0 1 illegal: No proof kernel
QK4N1/n5kq/bbqRrNPr/2n1n3/p4NB1/NR1bRQ2/PN1N4/r7 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Na6 g5 Nb8 g6 Qa5+ Bd2 Qd8 Bg5 hxg5 Kd2 f5 Kd3 b5 Kd4 a5 Kd5 a4 e4 b4 h4 g4 c4 b3 e6 d6 e7 g3 c6 f4 h5 f3 c5 g2 h6 b2 c7 f2 e5 Bg4 c8N Qc7 h7 Nd7 c6 Bf5 Na3 b1N Ne2 g1Q Nf4 Ra6 Qf3 Qb6 c7 Nd2 Bh3 f1B Bg4 B5d3 Rb1 Nc5 Rb3 Qh2 Rg1 Qb5 Nb6 Nc4 c8N Bfe2 Rd1 Qc6+ Kd4 d5 Rd2 Nd6 Nbc4 Nf6 g8N Nfd7 N8b6 Nc8 Nb2 Na7 N6c4 Bh6 Rd1 Bg7 Nd2 Bf1 Kc3 d4+ Kb4 Rb6+ Ka5 Ba6 Rc1 d3 Rc4 Bf6 Rd4 Bh4 Rd5 Bf2 Rd6 Qe4 Rd4 Re6 Rd6 Qc6 Nh6 Rf8 Ng8 Rf5 h8Q Qh7 Qg7 Rh5 Qf6 Qc8 Qa8 Rh6 Qf5 Nb8 Kb6 Nbc6 Ndb1 d2 Qh5 d1R Nd2 Bad3 Qh3 Nb8 Qhf3 Qa6+ Kc7 Ra1 Qab7 Nbc6 Qa8+ Nd8 Kb8 Qc6 Rd4 Ba6 Rdd3 Nf7 Re3 Kd7 e8R Bfd3 Re7+ Kd8 Rd7+ Ke8 Rd5 Kf8 Rd6 Re7 e6 Kg7 Bh3 Ne5 Bg4 Rf7 e7 Rf6 Ne4 Bg1 Nd2 Re6 e8N+ Kf8 Rb4 Nb3 Re1 Bb6 Nef6 Nc5 Rb3 Kg7 Re3
6BQ/Qp2Q3/rP3PK1/k7/1qq1Q2Q/1RqQ1N2/nq1BNb1r/2q2bBn b - - 0 1 legal: proof: b4 d5 a4 a5 g4 f5 c4 h5 gxh5 f4 cxd5 f3 b5 Ra7 exf3 Rh7 f4 Rh6 f5 Ra8 Ra2 Rh7 Rb2 Rh8 Rb4 axb4 Ke2 Kd7 Ke3 c5 Ke4 Kc7 f4 Kb6 h4 e5 d4 g5 f6 b3 a5+ Ka7 d6 g4 f5 b2 h6 g3 h7 c4 h5 g2 h6 c3 d5 c2 a6 Kb6 d7 Ba3 d6 Qc7 d8Q Ka5 b6 Bd7 a7 Qc5 f7 Bc8 f8B Na6 f6 Ne7 d7 Qc3 Qd3 Nb4 Bd2 c1Q Rh3 Na2 Nf3 g1Q Qe8 Nf5 d8Q Qg8 Bc5 Qc4+ Q8d4 Q3b4 Nc3 b1Q Ne2 Qbb2 Qe7 Bd7 Rg3 Bb5 Bh3 Q1c3 Bg4 Ba6 Bh5 Bb5 Bf7 Qcc1 Bg8 Q1c3 Rh3 Ng3+ Ke3 e4 Kf4 e3 Kg5 Ba6 Kg6 Nh1 Q4e4 Qcc1 Rg3 Qb4c3 Bd4 Bd6 Rh3 Bg3 Bc5 Bf2 Bd4 Re8 a8Q Q3b4 Qa7 Ra8 Be5 Q1c3 Bh2 Qcc1 Bg1 Q1c3 Ned4 e2 Rg3 e1Q Ne2 Qf1 Bd5 Rhb8 h8Q Qfc1 h7 Rd8 Bg8 Rd4 Qc6 Rh4 Qce4 Rh2 Qhg7 Qca1 h8Q Qe1 Qgh7 Qec1 Qb8 Bb5 Qhh4 Ra6 Qa7 Bd7 Ne5 Bh3 Re3 Bf1 Nf3 Qca1 Qdd4 Qcc1 Rb3 Q1c3 Qed3 Qac1 Qd4e4
1bBQ2NB/1n2p3/3PB2R/2q1P1Q1/Q1q2B1R/1n2r3/K1bkBnrn/2b4B b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h6 g6 Qd7 Nc3 Qd6 Ne4 Qd8 g5 h5 Nf2 Rh6 Ng4 hxg4 Bh3 Rh4 Bf1 Rh8 a4 Kd7 d4 Kd6 Kd2 c5 Kc3 b5 Kb2 f5 e4 b4 h4 f4 a6 f3 h5 g3 a7 b3 h6 c4 g7 f2 g6 g2 h7 Qc7 a5 Nh6 g8Q Ng4 g7 Nd7 a6 Nc5 Ra4 Bf5 Nh3 g1Q Be2 f1N Nf4 Nfh2 Nh5 Nb7 Nf6 c3+ Ka3 b2 Ka2 Rc8 a8B b1N a7 c2 Be3 c1B Bf4+ Ne5 Rc4 Nd2 Qa4 Nb3 Rb4 Qc4 Rb6+ Rc6 Ra6 Nd8 Bb7 Qe3 Bc8 Nb7 a8B Rb6 Qf7 Rg8 Qh5 Qec3 Qg5 Qa5 Rg1 Qac5 Rg4 Bg6 Rh4 Bf5 Bd2 Nd3 Be3 Nf2 Bd2 Rh8 g8B Bg7 Bge6 Rg8 h8B Bh6 Be3 Rg6 Ng8 Rc6 Qf6 Rg2 Qg5 Bg7 Bf4+ Be5 Bd3 Bg4 Bf1 Bd1 Be2 Bc2 Ra7 Kc7 d6+ Kb6 d7 Bb8 d5 Rc7 e5 Rc6 Qa3 Kb5 d8Q Rc7 Qa6+ Kb4 Qa4+ Kc3 Ra6 Rc6 B6g4 Rc7 Rah6 Rc6 Bh3 Rg6 d6 Rg3 Qb5 Re3 Qa4 Kd2 Bhe6 Rg7 Qf6 Rg2 Qg5 N7a5 Be4 Nb7 B4d5 Rg1 Bh1 Rg4 Qf6 Rg2 Qg5
1K1R1rNQ/1R1R2q1/1RBQ1pRQ/8/P2bN3/2bb1Pnr/r6k/3b1nRq b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra7 g4 Ra8 gxh5 e5 d4 Rh7 d6 Na6 d5 Rh8 Be3 Nb8 Bd4 exd4 Kd2 Kd7 Kd3 c5 Ke4 b5 Ke5 g5 e4 g4 h4 c4 a4 d3 h6 b4 h5 c3 h7 c2 f3 c1R h6 g3 a6 d2 a7 g2 Nh3 g1B Bb5+ Rc6 Nc3 b3 Ng5 b2 Rb1 Bf2 Rg1 Ke8 d7+ Ke7 Bd3 Qa5 d8R Na6 Bb5 Bf5 Rd6 Qb4 Rg6 Nc7 d6+ Kd7 Nd5 Nf6 Ne7 Nh5 Ng8 Ng3 Qe1 d1B Qd2 Rc8 a8R Nd5 Rb8 Ne3 Rb6 Nef1 Kd5 f6 e5 Qg4 Ne4 Bd4 e6+ Ke8 e7 Kf7 e8R Rc2 d7 Bb4 d8R Bbc3 Kd6 Qg5 Ra1 b1Q Bc6 Ra2 Re5 Rb8 Kc7 Qg4 Red5 Ke6 R5d7 Ke5 Qh2 Kf4 Rb7 Qc1 Rab1 Qg5 R1b6 Qg4 Nd6 Bd3 Ne4 Qg5 Ne7 Rf8 h8Q Ra8 h7 Ra5 Rh6 Qg7 Kb8 Rh5 Ng8 Rh3 Rg6 Qb2 Rb5 Qg2 Rb4 Qh1 R4b6 Qe7 Qg7 Qf7 h8Q Qe7 Qgh7 Qg7 Qh5 Ke3 Nh6 Nf5 Qd6 N5g3 Ng5 Kf2 Ng8 Nd2 Re1 Kg2 Ne4 Kh2 Rg1 Nf1 Q5h6
1b2Q3/b2nq2p/4n1b1/1rQKRP2/1r1RNR1n/1N1n3P/kR2R1R1/B3q2N b - - 0 1 illegal: No possible last move, all moves rejected
1k3Nb1/rP1Q1R2/1Q1n1rB1/1pbQ3n/1RqR3K/n6Q/QP1Nn3/3nQn2 b - - 0 1 illegal: No proof kernel
1B3Knr/2Q3N1/3rQ1N1/2NRn1bN/1b1r2B1/kp1p2qn/1P2b1P1/N2Q2N1 b - - 0 1 illegal: Other
6KN/5r2/BBQ4q/3R1kP1/qRp3b1/QRPn2Rp/qnQn3b/2R1Rr2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 Ke7 hxg5 Ke8 Nd2 Qf6 dxe5 Bh6 e6 Bf8 e5 Qd8 Ne4 fxe4 Kd2 Ke7 Kc3 a5 Kc4 c5 Kd5 h5 b4 a4 f4 d6 g4 h4 f5 a3 f6+ Ke8 c3 a2 f7+ Ke7 b6 e3 b7 h3 b5 e2 b6 e1N g6 Nc6 b8R Nc2 g7 Qe8 b7 Ra6 Nf3 Na3 Ng5 Rh7 Be3 Nc4 Rc1 a1Q Qc2 Qa2 Bd3 Qd7 Rhd1 Nb2+ Bc4 Rb6 Bf2 Rb3 Ba6 c4 Bb6 Qc7 Re1 Bd7 Rd8 Ra3 b8R Nb4+ Kd4 Nf6 g8R Bh6 f8R d5 Nf7 Bc8 Nh8 Qc6 g5 Ne4 Rf3 N4d3 Rg3 Bf8 Rd6 Nd2 Rg7+ Ke8 Rgb7 Rf7 e7 Rb3 Rdd7 Qh6 Rd6 Nf4 Kc5 d4 Rd5 d3 Kd4 Bg7 Kc5 Bf6 Kd6 Ra3 Ba5 Ra4 Rb3 Rb4 Rbb5 Bg4 Bb6 Ra4 R5b4 Ra5 Bb7 Ra7 Ba6 Rf8 Ng6 Kf7 e8Q+ Kg7 e6 Raf7 e7 Be5+ Kc5 Bc7 Qa4 Kh7 e8Q Kg7 Ne7 Bb8 Qa3 Be5 Nc6 Kg6 Nd8 Kf5 Qc6 Nf3 Qf2 d2 Qg2 d1Q Qh2 Rh7 Nf7 Nd2 Nh8 Rhf7 Qg2 Qc2 Qe2 Qcb1 Qd1 Qba1 Qc2+ Nfd3+ Kb5 Rh7 Rg2 Kf4 Qa4 Qa3 Qa5 Q1a2 Qa4 Bd4 Rg3 Bg1 Qa5 Bh2 Qa4 Nf2 Kc5 Rb7 Re6 Nfd3+ Kd6 Rbb8 Ke7 Rb7+ Rd7 Rf6 Ree1 Rf5 Ke8 Rf6 Rd5 Rbf7 Qab5 Qa5 Qa4 Rf5 Qa3 Qa4 Rf1+ Ke4 Rfd1 Rf1 Re1+ Kf4 Re6 Rg7 Kf8 Rc7+ Kg8 Rf7 Rd8 Kf5 Ree1 Bd1 Rd6 Bg4 Rd5+
5kQ1/rb4qr/1P3B2/n2QbN1p/Q1Nq2n1/1p1Q2NP/R1R2rQ1/1K1Q1n2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 b4 c6 e3 Bd6 b6 Bc5 b5 Ne7 b7 Ng8 b6 Bf8 Bb5 cxb5 Kd2 d5 c4 f5 Kc2 h5 g4 a5 g6 f4 c5 d4 g7 a4 h3 b4 c6 f3 e4 a3 e6 f2 e7 f1N g5 a2 e5 Ng3 g6 Nf6 g8Q Na6 b8Q Ne2 c7 Nh7 g7 Qd6 Rh2 Qf6 Nd2 Qg5 Bb2 Ra7 Nc4 Nc5 Qd5 Nb7 g8Q Ng3 Ne2 Nf1 Ng3 Nf6 Qa8 Qf4 Qh7 Na5 Qhd3 Rh7 Qg2 Qh4 Qad5 Bb7 c8N b3+ Kc1 Bg7 N8d6+ Kd7 Bc3 Ng4 Ndf5+ Ke8 Kb2 Bf6 Rc1 a1R Rc2 Ra2+ Kb1 Qg5 Rc1 Rf2 Rc2 Qg8 Ra2 Qe6 Bb2 Kf7 Ba1 Kg8 Rc2 Qf7 e6 Qf8 e8Q Be5 Qa4 Qg7 e7+ Qf7 Q3e2 d3 Bb2 d2 Qed3 Bc7 Bf6 Be5 Qd6 Qg7 e8Q+ Qf8 Qeb5 Qg7 Qe6+ Kf8 Qbd5 Rf3 Qc1 d1Q Ra2 Qd2 Qd1 Qc3 Qg1 Qb4 Rhc2 Rf2 Qh2 Qc5 Qhg2 Qd4 Qg8+
1N1bRr2/4RN2/2n1QN1B/PNQq1rpk/3p4/4N2N/1n1P3K/n2qQbr1 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 c6 b4 Ra7 bxa5 Ra8 Bb5 cxb5 Kf1 Kf7 Kg2 g5 c4 e5 f4 d5 a4 b6 h4 e4 c5 d4 h6 b4 c6 b5 c7 e3 h7 e2 h5 e1N+ Kh2 b3 f6 b2 f5 b4 a6 b3 a7 Bg7 a5 Qd5 h6 Qc6 Nh3 Qd5 Nc3 b1Q Nb5 Bb7 c8Q b2 Qc5 Ng2 Re1 Qb3 Re7+ Kf8 f7 Qf3 Qe1 Ne3 Ra3 Nd1 Rae3 Qc2 R3e6 b1R Ba3 Nc6 Re4 Rc8 a8N Nb2 Nac7 Ra1 Nd5 Qcd1 Ne3 Nf6 Bb4 Rg8 h8Q Nd5 h7 Ba6 Ba3 Ndb4 R4e6 Bh6 Qf6 Nc2 h8N Qd5 Re4 Rd8 Qe6 Kg7 f6+ Kh7 Re5 Bg7 f8N+ Kh6 f7+ Kh5 Nh7 Bf6 f8N Rc8 Nd7 Rcf8 Re8 Bd8 Nb8 Rf5 Nf7 Rf8 Nf6+ Kg6 Nc3 Bf1 Nb5 Rb1 Qb6 Na1 Bc5 Rh8 Bf8 Rg8 Bh6 Rf8 Qc5 Rc1 Nh7+ Kh5 Re4 Rb1 Re7 Rc1 Nf6+ Kg6 Ra7 Qc2 Qh4 Bd3 Qed6 Rg1 Re8 Bf1 Qe6 Qcb3 Qe1 Qd1 Nfg4+ Kh5 Rc7 Re5 Rce7 Rf5 Nf6+
N3Nb1K/1Bpn2N1/5BqQ/p1PQ1r2/3QPR1r/1rk2N2/n2Nb1q1/4b1N1 b - - 0 1 illegal: No possible last move, all moves rejected
3R2Q1/QnQ2RQK/3n4/Npb2R2/1Nb3q1/3qB1rQ/1PP2Q1p/r1k1b2r b - - 0 1 illegal: No proof kernel
1R6/7p/1nR2Rr1/QbB2r2/1B1N1b2/KQ1pR1nR/3qqRPP/2rk2bB b - - 0 1 illegal: Other
4Qbq1/q1rnpQ2/1p1Q4/b7/1P1Bk1QB/2Q2R1B/1QN1P1KR/1n1brr2 b - - 0 2 legal: proof: f4 h5 g4 g5 fxg5 d5 gxh5 a6 c4 Bf5 cxd5 Bc8 Na3 a5 Nc2 a4 b4 Rh7 Nd4 Rh8 Nb3 axb3 Kf2 Kd7 a4 Kd6 h4 Ke5 d4+ Ke4 g6 c5 g7 f5 d6 c4 d5 b2 d7 b1Q d6 f4 a5 f3 a6 c3 h6 c2 a7 Qb2 h5 Qe5 h7 Qf4 h6 Qg4 Qd2 Qc7 d8Q Bf5 d7 Na6 Qe8 Qg5 d8Q Bd7 Qf7 Nc5 Bh3 Nf6 g8Q Nd5 Rh2 Nc3 Ra3 Rc8 a8Q Ba4 Q8d6 Nb1 Qc3 Nd7 Bf4 c1B Bg3 Bc2 Bh4 Bf4 Qb8 Qd5 Qg4 Bd1 Qb2 Rg8 h8B Qcc5+ Bd4 Qa7 h7 Rc7 Kf1 f2 Kg2 f1R h8Q Rg5 Rg3 Re1 Qd8 Rf5 Qde8 Qe6 Rb3 Qg6 Nf3 Qg8 Bg7 Rf6 Nd4 Rf5 Rf3 Rf6 Qg5 Be3 Nc2 Bb6 Qgg3 Ba5 Qhh5 Rf4 Bd4 b6 Qhc5 Rf5 Qcc3 Rf4 Rd3 Rff1 Rf3 Nf6 Qg5 Nd7 Qg4+
nB5R/2Q5/2KNNn2/2n1r3/2bp1QQ1/P4Nb1/1pNP1nqk/N2BNrn1 b - - 0 1 legal: proof: g4 f5 e4 h5 gxh5 a5 exf5 c5 b4 Ra6 bxa5 Nf6 a3 Ng8 Ra2 Ra7 Rb2 Ra8 Rb4 cxb4 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kb5 Kh4 f4 e5 c4 g5 c5 d5 f6 e4 f7 b3 a6 g4 f5 b2 a7 e3 h6 g3 h7 e2 f6 e1N c6 b6 c7 g2 Nf3+ Kh3 Be2 g1N Nc3 b1N Na2 Ng2 Bb2 Ne3 Nc1 Ne7 Ne1 Ng4 Be5 d4 Nb3 Bg7 f8N Nf3 f7 Rg8 h8N Qd6 Ne6 Na6 f8Q Ng1 Na1 Nd5 Qf4 Ngf6 Ng6 Rf8 Nh4 Nc5 Bf3 Qd8 Kc6 Ba6 c8N b5 Bb8 b4 Nd6 b3 Qc2 b2 Bd1 Be2 Nhf5 Bc4 Ne3 Bh8 Qce4 Nb6 N3c2 Nc3 Qg6 Ng4 Qgf7 Ncd5 Qc7 Kh4 h3 Be5 Rh2 Qg5 Rh1 Kh5 h4 Nf6 Rh3 Kg6 Rh1 Nf2 h5+ Kh6 Qg4 Bg3 Rh4 Rf7 Rh3 Kh7 h6 Kg6 h7 Re7 Ng7 Re5 Qf4 Qg4 h8Q Qe2 Qhc8 Qf1 Ngf5 Qg2+ Qe4 Kg5 Rh8 Qh2 Nh4 Qg2 Qd5 Kf4 Q8d7 Bh2 Qe4+ Kg3 Qf7 Kh3 Qg7 Bf4 Qg4+ Kh2 Qef3 Bg3 Qf4 N6e4 Q3g4 Nf6+ Qe4 Bg8 Qcc8 Nh1 Bc7 Nh5 Qd8 Rb8 a8N Bc4 Qdc8 Rb7 Bb8 Rf7 Nc7 Rf1 Ne6 Na8 Qc7 Nf2 Qef3 Nf6 Qfe4 Rd5 Qef4 Re5+ Nhf3#
3Rrb2/1Q1RPQ2/2rpBBN1/nB1R3q/R1bpb1b1/1n1P4/1K2R3/1Rn1k3 b - - 0 1 legal: proof: f4 b5 a4 e5 fxe5 g5 axb5 g4 Nc3 c6 Nd5 g3 hxg3 cxd5 g4 d4 g5 Qc7 Rh2 Qa5 Rh1 Qd8 b4 Ke7 c4 Ke6 e4 a5 g4 f5 c5 h5 b6 d6 b5 a4 c6 a3 c7 a2 b7 f4 g6 f3 g5 h4 g7 h3 b6 h2 g6 Qd7 Ne2 Qe7 Nf4+ Kd7 e6+ Kc6 e5 Kc5 Qb3 f2+ Kd1 Ra3 Kc2 Nd7 b8Q Ndf6 b7 Nd7 Kb2 Qg5 e7 Rh6 e8R Qf5 e6 Rh8 Bb5 Ne7 g8R f1B g7 Ra6 Ng6 Bc4 d3 Nc6 Bg5 Na5 Bf6 Rc6 Rhb1 h1B e7 Qh5 Rd8 Bhd5 Qa8 Be4 b8R Qg5 Rb7 Qh5 Qd1 Kb4 Qf3 Nc5 Qa7 Bh3 c8R Bhe6 Rbd7 Ncb3 Qb7 Bg4 Qf1 Nc1 Rcc7 Ra6 Rc5 Rc6 Rd5 Ncb3 Re1 Nc1 Rb1 a1N Re2 Na1b3 Qf5 Rc5 Qe6 Rc6 Qf7 Nd2 Ka1+ Kc3 Ra8 Kc2 Ra7 Kd1 Kb2 Rh6 Rh8 Ndb3 g8B Rh7 Qe8 Rg7 Be6 Rg8 Ra8 Bg7 Qf7 Re8 Rg2 Ke1 Rg8 Rb8 Rgd8 Bf8 Re2+ Kf1 Qa7 Nb7 Re8 Rbc8 Qb8 Rd8 Ra4 N7a5 Qb7 Rdc8 Rg2 Ke1 Rc2 R8c7 Rb8 Rc8 Rg2 Re8 Rbd8 Nd2 Rh2 Ndb3 Re2+
RN6/Q1Pr3k/1N1pKb2/Q2N1pbR/Qnnq3Q/4Q3/3Pb2B/Qrn4b b - - 0 1 illegal: No possible last move
Qb2n3/n1p5/1nk1br1b/1pB1rR2/1Q1KN1QQ/2P2qQP/N1b1BB2/1Q6 b - - 0 1 illegal: No possible last move, all moves rejected
K1NnR1R1/pN1R3k/2QbRBR1/1Q3qrn/bn6/Ppr3P1/2N4b/3R2n1 b - - 0 1 legal: proof: f4 c5 d4 h5 b4 e5 dxe5 g5 bxc5 h4 fxg5 h3 g3 Bd6 Bg2 hxg2 Nc3 Be7 Nb1 Bf8 Kd2 b5 Ke3 d5 Kd4 f5 e4 Kf7 h4 Kg6 c4 b4 h5+ Kh7 e6 b3 c6 f4 c7 f3 e5 f2 e7 f1N Kc5 d4 g6+ Kg7 a3 d3 e6 d2 h6+ Kf6 g7 Kg6 h7 Nh6 g8R+ Bg7 e8R Bb7 c8N Nf7 e7 Bd5 Bb2 Ne3 Qe2 d1N Rh6+ Kf5 Nf3 g1B Nbd2 Bh2 Ne1 Nc6 Ne4 Ng2 Bf6 Nf4 Nc2 Nf2 Rd1 N2h3 Rg6 Qd7 Qd3 Ng1 Ned6+ Ke6 Nb7 Nb4 Qf1 Kf5 Rd8 Rb8 e8R Bc6 Re6 Ba4 Rge8 Qd3 Rd7 Rg8 h8R Nd8 Qe2 Bh6 Qf1 Rg7 Rhg8 Qf3 Kd6 Nh5 Kc7 Be3 c5 Bf4+ Be5 Ra8 c6 Qe4 Qb5 Qd3 Rh6 Rg5 Rhg6 Rb8 Na5 Rb6 Nb7 Ra6 Kb8 Ra5 Qd5 Rc5 c7 Rc3 Bf6+ Be5 Qc4 Bd6 Qb5+ Be5 Ka8 Nf7 R6g7 Nd8 Nb6 Qd5 c8Q Bd6 Qcc6 Qe5 Rh8 Qc5 Nc8 Qd5 Rgf7 Kg6 Rhg8+ Kh6 Rfg7 Qe4 Ne7 Qf5 Rg6+ Kh7 Nc8+
rR1rNQNk/4Pp1p/R1R4P/nrr1n3/8/2Q1B1Kb/1R2R3/qq2R1bQ b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 d4 e3 g6 Bd3 Bg4 Bf5 d3 cxd3 Bh3 d4 Bg4 d5 Bh3 Be4 Bc8 Bf5 gxf5 Kf2 a5 b4 c5 h4 c4 g4 a4 d4 f4 h5 a3 g5 a2 e6 c3 h6 f3 d6 c2 e7 Bb7 g6 Nc6 g7 Ba6 d5 Ne5 b6 Bf1 e4 Bg2 b7 Ra3 b8R Rd3 b5 Rd2+ Ne2 Ng6 e5 Nf6 g8R Ng4+ Kg3 f2 b6 f1R b7 Be4 Nec3 Rd4 Nb5 Ne3 Nc7+ Kd7 e8R Rd3 Nd2 Ne7 Rg6 Bf5 Ne4 Rf4 Re1 Ng4+ Be3 c1R Qc2 Rb3 Qc3 Nc6 Ree6 Qe7 Ne8 Na5 Re2 Rc2 Rae1 a1Q Ref6 Qd8 Re6 Qc8 N4f6+ Kd8 d7 Rd4 Rd6 Ke7 e6 Rb5 Rc6 Ne5 d8R Bg7 d6+ Kf8 d7 Bh3 Ng8 Qc7 Rdc8 Qb6 d8Q Rdd5 Qf6 Rd8 Qf3 Bf6 R8c7 Be7 Rd7 Bc5 Rdd2 Rc1 Rb2 Bd4 Bf4 Bg1 Qh1 Rc2 Be3 Rc1 Rbc8 Rc2 b8Q Rc1 Qb3 Rcc5 Qc3 Qb7 Ra6 Qe4 Qa8 Qeb1 Rb8 Nd7 Ne7 Qc2 Ng7 Qcb1 Rbb6 Re8 Qb8 Rg8 Qd6 Ra8 Rb8+ Rc8 Qda3 Rd8 Ne8 Rg7 Nc8+ Kg8 Ne7+ Kh8 Qab4 Nf6 Ng8 Ng4 Rf6 Rgg5 Qf8 Rgc5 e7 Ne5 Rfc6
8/2Q1R1pN/1rQ1NqP1/r2r2NN/2p5/BrPNkq2/2b1bRR1/n3KN1n b - - 0 2 legal: proof: d4 h5 a4 e5 dxe5 b5 axb5 Bc5 f4 Ke7 g4 Na6 e4 Bd6 g5 Bb7 e6 Ba3 f5 Nb8 e5 Bc8 Be2 Kf8 Bg4 hxg4 Qd3 Ne7 Qf3 Kg8 Qd1 Kh7 f6 Kg6 Qd6 Ng8 Qd1 Be7 fxe7 Rh7 Nd2 Rh3 Nb1 Rh8 e8N Kf5 b4 Ke4 h4 f5 c3 d5 g6 c5 b6 a5 b7 g3 b5 d4 e7 a4 e6 f4 b6 g2 h5 f3 h6 c4 h7 d3 Rh2 a3 Nd2+ Ke3 Ra2 Nh6 Nf6 Ng4 e8N Nd7 b8Q Nc5 b7 Nf2 e7 Ra6 Qc7 Bf5 b8R Rb6 Rb7 Nh1 Qa4 Nb3 Ne2 Na1 Nf4 Bg4 Rb2 a2 N6h5 Qd6 Qad7 Qf6 Qdc6 Rg8 h8N Rf8 Nd6 Rd8 Ndf7 Rd5 e8N Bf5 Nd8 f2+ Kd1 f1B Nhf7 g1R Rg2 Be4 Ke1 Rb3 Rf2 Rgg5 Rc2 Be2 Ba3 Ra5 Rb2 Rgd5 Nde6 Ra6 Rc2 Rab6 Nfg5 B2f3 Qa4 Qf5 Rg2 Qh3 Qf7 Bf5 Rb2 Nc2+ Kf1 Ra5 Qc6 a1Q+ Nb1 d2 Nef6 Qa2 Rd7 Na1 Nfh7 B5e4 Qe7 Qf5 Qed6 Qf6 Qdc7 Bg4 Re7 Bd3+ Kg1 Bgf5 Rc2 Bf1 Rb2 d1R Rbf2 Rdd5 Nd2 Bb1 Nd3 Qb2 Ndf3 Qe2 Nd2 Qef3 Rf7 Be2 Re7 Bd1 Kf1 Be2+ Ke1 Bc2 Nf1+
NrR1R1BQ/1Rb3R1/1Bbrp1p1/5qP1/1nb1R3/3n2QR/3K1P2/q2B1kb1 b - - 0 1 legal: proof: e4 b5 g4 c5 a4 h5 axb5 c4 Nc3 f6 d3 Ba6 dxc4 Qc8 c5 Qc7 g5 f5 exf5 Bb7 Nd5 Qd8 Ne3 Bc8 Ng4 hxg4 b4 Kf7 c4 a5 h4 d5 b6 a4 f6 Ke6 h5 Ke5 b5 Ke4 b7 a3 f7 g3 c6 g6 c7 a2 h6 d4 c5 g2 b6 d3 c6 Kd4 h7 Qd6 Nf3+ Ke4 Kd2 g1B Qb3 Nd7 b8R Ndf6 b7 Ng4 Rh3 Ne5 Nd4 Nf6 Nb5 Qd7 Be2 Ra6 Bd1 Nd5 Bb2 Qe6 Bd4 Qf5 Bb6 Be6 c8B Nb4 c7 Bc4 Be6 Rg8 Rc1 a1Q h8Q Bg7 Ra8 Rb8 f8R Bf6 Bf7 e6 c8R Bd8 Rg8 Bc7 Rg7 Kf4 Bg8 Ke4 Bd4 Rd6 Bb6 Kf4 Rc3 Ke4 Re3+ Kf4 Re2 Kf3 Re4+ Kg2 Ra7 Kf1 Re8 Rc8 b8R Rcd8 Raa8 Rc8 Rb7 Rb8 Ke3 d2 Qa3 Bd8 Nc7 Ned3 Qb3 Nc1 Ra3 Ncd3 Na8 Bc7 Rc1 Bd5 Qc3 Bc6 Qe5 Na6 Qg3 Nab4 Bc2+ d1B Kd2 Qf8 Bb3 Qf5 Rcc4 Bf3 Bd1 Bb5 Rc6 Bc4 Rc3 Bd8 Rc8 Bc7 Rh4 Bc6 Rh3 Bb3 Rc4 Ba2 Rch4 Bc4 Re4
k3N1N1/3rNpp1/2N2P2/1NqQ4/K1nR3q/4q1P1/QNnrRR2/1bB1rq2 b - - 0 1 legal: proof: c4 h5 d4 b5 a4 d5 axb5 e6 cxd5 h4 e4 h3 e5 Ba3 g3 Bc5 Bg2 Bd6 exd6 hxg2 Kd2 Kd7 Kc2 c5 Kb3 a5 h4 c4+ Ka4 c3 b4 e5 f4 e4 h5 e3 h6 c2 b6 e2 h7 e1Q b5 Bb7 f5 Kc8 f6 Qf8 d7+ Kd8 Nd2 Qee8 Qe2 Ra6 Rh2 Qe6 Ngf3 g1R Ra2 Re1 Nc4 Qh3 Nb2 Qh4 Rf2 Bc6 b7 Kc7 d8R Nd7 b8N Kb7 d6 Ra8 Na6 Nh6 Nc7 Rf1 Ne8 Be4 b6 Rc8 d5 Re1 Nd4 Ng4 Nb5 Nde5 d7 Ka8 d6 Nc4 Qd2 Rg8 h8N Nge3 Ng6 Rb8 Ne7 Bh7 Kb3 a4+ Kb4 a3 Ka4 Rh8 Ng8 Rc8 Qd3 Bg6 Qb3 Rh5 Re2 Rd5 Rf2 Rd2 b7+ Kb8 Nbc7 Ka7 b8N Bf5 Nb5+ Ka8 Nc6 Be4 Ra1 a2 Nce7 Bf5 Rb1 a1Q+ Qa2 Rb8 Rc8 Be4 d8N Bf5 Rc7 Rb7 d7 Bd3 Ndc6 Bh7 Nc8 Qc5 d8Q Be4 Re7 Rbd7 Nd1 Qad4 Nb2 Qd3 Re5 Qf1 Nc8e7+ Kb7 Qa8+ Kb6 Nb4 R2d4 Bd2 c1Q Ra1 Qc3 Rd1 Bb1 Qe4 Nc2 Nbc6 Kb7 Bc1 Ka8 Qd5 Qf3 Ree2 Qe3 Rdd2 Rd3 Rf4 Rd4 Ref2 Rd3 Rde2 Rd2 Rd4
1N1n1BBN/1n1q1p2/Br1bp3/1QRb3p/B1BNr2P/1q2P3/7n/k1KBQ3 b - - 0 2 legal: proof: d4 a5 f4 b5 a4 g5 fxg5 c5 dxc5 Ra6 b4 Ra8 Ra3 Na6 Rb3 Nc7 axb5 Na6 b6 Nb8 b5 Qc7 Rb2 Qd8 Rb4 axb4 Kd2 h5 c4 d5 g4 Kd7 h4 Ke6 g6 Ke5 b7 Kd4 g5 e6 g7 b3 c6 b2 b6 Bd6 e3+ Ke5 c7 d4 g6 d3 c5 Nd7 b8Q Qe8 c6 Bc5 b7 Ke4 Nf3 Ra1 Qe1 Ba3 Ne5 Bf8 Na3 b1Q Nb5 Nc5 Ba3 Qb3 Nd4 Ne7 g8B Qd7 g7 Kd5 Bb4 Ra4 Ng6 Kc4 Bh7 Rg8 Ba3 Rb4 Kc1 Rb6 Qg3 Kc3 Nh8 Qbd5 Qe1+ d2+ Kd1 Qc4 Bc2 Qb3 Bb4+ Kb2 Bc4 Ka2 Rf1 Ka1 Rf5 Ng6 Ba3 Bd6 Rd5 Rd8 g8B Ne7 Re5 Qb4 B2b3 Qb5 Kc2+ d1N Kc1 Nf2 Bd1 Ng4 Rd5 Nh2 Rf5 Qe8 Rd5 Bd7 c8B Qb3 c7 Bc6 Bd7 Rc8 Rg5 Bd5 Ba4 Nc6 Rf5 Rd8 c8B Qd7 Bb4 Bf8 Qe5 Bd6 b8N Nb7 Ba3 Bg2 Qb5 Bd5 Bh7 Rg8 Bc5 Rg5 Bg8 Ncd8 Re5 Rg4 Rg5 Bf4 Bf8 Bd6 Rf5 Re4 Re5 Nc5 Ba6 Ncb7 Rf5 Bc6 Rc5 Bd5 Qf2 Qe8 Qg1 Qd7 Qe1
r2N1kNn/1Q1bn2Q/3P3q/pR6/1Bb2pq1/Q1Qp1Q2/P2RrQ1b/1K2N3 b - - 0 1 illegal: No proof kernel
8/PNp2q1b/n3Q2R/R2Q1rb1/R4NR1/nQKbR1pr/p1P4R/B3k1q1 b - - 0 1 illegal: No proof kernel
R1Bb1R2/6BK/1N1pbR2/1bBr2Q1/2PRR1Q1/2p1q3/b2P2pn/n2r2kR b - - 0 1 illegal: No possible last move
b2n4/1Bn2pQ1/R1B2p1n/2q2k1p/1QN5/N4PB1/rnB4P/1NKn1BrB b - - 0 1 legal: proof: d4 a5 a4 d5 e3 c5 dxc5 d4 b4 d3 bxa5 Qd5 Ra3 Qd6 Rb3 Qd4 Rb6 Qd8 Rf6 gxf6 Ba3 Bh6 Bc1 Bf4 Nf3 Be5 Ng1 Bd4 exd4 Qc7 Nh3 Qb6 Ng1 Qd8 Kd2 Kd7 c4 Ke6 g4 b5 a6 h5 d5+ Ke5 a7 b4 c6 b3 d6 b2 c7 e6 d7 Qe8 d8Q Nd7 c5 Ke4 g5 e5 c6 Rb8 a8B Rb5 g6 Nb8 g7 Qe6 a5 Qe7 a6 Rd5 a7 Rh6 Qd6 Qf8 Nf3 Bf5 c8N Rg6 c7 Rg1 Bc6 Nh6 a8B Bg4 g8B Kf5 Na3 e4 Qc2 Ra5 Qb4 Qc5 Nb6 b1N+ Kd1 e3 Nbc4 Bh3 Nfd2 Bg2 Bb2 e2+ Kc1 e1N Be5 Ra4 Bg3 Nc3 Ndb1 Nd5 Qe2 Bf3 Qe8 Be4 Qf8 Bg2 Qg7 d2+ Kd1 Nd3 c8B+ Nd7 Kc2 d1N Bc8b7 N3b2 Kc1 Nf8 Bh7+ Ng6 Nc2 Ra2 N2a3 Nc7 Qf8 Ke6 Qg7 Nf4 Bhd3 Be4 Bc2 Kf5 Bg2 Re1 Bf1 Nfe6 Rg1 Bd3 Bh1 Be4 f3 Nd8 Bc6 Ne8 Bab7 Nc7 Bfd3 Rf1 Rg2 Rg1 Bf1 Ra1 Rd2 Ra2 Rd6 Qf2 Bd7+ Nde6 Ra6 Qc5 Be8 Nd8 Bc8+ Nde6 Bb3 Bb7 Bc6 Ba8 B8b7 Nd8 Bc2+
1k3BB1/3K2P1/3p2np/qBR1B1b1/B1BPp3/3QrN1p/1RQ1bRnb/6r1 b - - 0 1 illegal: No proof kernel
1nN5/rRb1Q1p1/1N2NpN1/1P1B2kN/R3b3/1QK1pp2/r1N2qPR/n6r b - - 0 1 illegal: Other
BB2N1K1/3Pk1R1/q1b5/8/1nr3bR/3NBnn1/BP1n1prB/BB1b1R2 b - - 0 1 illegal: Other
4BB1B/2p1bBqn/2N1r2P/2Rn1b2/B1BR4/3bRK1k/1qPq2N1/4bB1r b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Qd4 Rh7 fxg5 Qe7 g6 Rh8 g5 Qd8 Qg4 hxg4 Bh3 Ke7 Kf2 Ke6 e4 a5 b4 f5 b6 d5 g7 f4 g6 f3 b5 d4 b7 d3 b6 a4 Nd2 a3 Nc4 d2 Na5 d1B Ne2 a2 Nf4+ Ke7 e6 Kf6 e5+ Kg5 e7 Kh4 e8B Bd6 Re1 Na6 b8B Nc5 b7 Na6 Bb2 Bf8 Ba4 Qd6 e6 Be2 e7 Nb4 e8B Nf6 g8B Bf5 g7 Ra6 Rad1 a1Q Ba7 g3+ Ke3 g2 b8R f2 Rb5 f1Q Bc4 Qd8 g8B Re6+ Re5 Rh5 Bgf7 Nh7 Bc5 Qg5 Rd6 Bed3 Nc6 Qg1+ Kf3 Qh6 Bbd4 Qb2 Red5 Qg5 Bh8 Qgg7 Re2 Qgc1 Re3 g1B Bf1 Bf2 h3 Be1 Ng2+ Kg5 Rd4 Qd2 R6d5 Rh4 Bd6 Rhh6 Rc5 Nd5 Bh2 Be7 Bd6 Bf6 Bf8 Be7 h4+ Kf6 h5 Kg5 Nf4 Kh4 Nb8 Rhg6 h6 Rg1 Nc6 Rh1 Ng2+ Kh3 Re2 Qdc3 Ree4 Qd2 Re3
B1b2nB1/1q2N1r1/1NNq4/p1r5/Pp1B4/3bqnB1/K2BR1RP/B4kbB b - - 0 1 illegal: No proof kernel
R1RR2Rq/br1n3p/nNpR1kbK/2P5/1r2R3/2b1BB1P/r4N2/1Rq4B b - - 0 2 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 e4 Ng8 f4 g5 Qd4 Ba3 exf5 Bf8 f6 Nh6 f5 Ng8 Qf4 gxf4 Ke2 Kf7 Kf3 d5 Kg4 a5 Kh5 c6 b4 f3 g4 f2 c4 d4 g5 d3 c5 a4 g6+ Ke8 b6 d2 b7 d1R b5 a3 b6 a2 e6 Qd7 g7 Rd2 e7 Kf7 e8R Rd4 Be3 Rf4 Na3 Qd3 Nc4 Qd6 Rd1 a1B Nh3 Ne7 Kh6 Nd5 Bg2 f1Q Re4 Rg8 Bf3 Ra6 Nf2 Ra5 h3 Na6 b8R Be6 b7 Ra2 Rd8 Qe5 b8R Bd6 Ra8 Bb8 Nb6 Ba7 Rd6 Rb8 g8B+ Ke8 f7+ Ke7 f8R Bc3 Rc8 Rb7 Rdd8 Nf6 R1d6 Qc1 Rg1 Bd7 Bd5 Be8 Bh1 Nd7 f6+ Kf8 f7 Ke7 f8R Bg6 Rg8 Rg4 Rb4 Qh8 Bdf3 Kf7 Rb1 Rb4 Rg4 Ke7 Re4+ Kf7 Rd1 Kf6 Rd6+
4n3/N1rp1rb1/3PRB2/4R3/RR1RpKR1/2nBnn1q/2B1P3/b1R1nkN1 b - - 0 2 legal: proof: f3 h5 c3 g5 Kf2 a5 Qc2 h4 Qe4 b6 Qg4 Bb7 Ke1 c5 Qb4 g4 b3 c4 bxc4 axb4 Bb2 h3 gxh3 g3 Bc1 Be4 Ba3 Bf5 Bc1 Bg4 fxg4 Ra5 Kd1 Ra3 Ke1 Ra8 a4 f5 d4 Kf7 Kd2 Ke6 Ke3 b5 d5+ Ke5 h4 b3 d6 b2 g5 b4 a5 b3 g6 e6 c5 g2 c6 Nf6 a6 Rh5 c7 Rg5 c8R Qe7 h5 Qe8 h4 Qf7 h6 Ra7 h7 Qg8 h8R Rc7 c4 Rb7 h5 Rb5 a7 Ne8 a8R Qh7 h6 Rb7 g7 Na6 g8R Bg7 c5 Rc7 c6 Nb4 Na3 b1N Bb2+ Nc3 Rab8 Nd3 Rh4 Ne1 Rbb4 Rh5 Nb5 f4+ Kf2 f3 Kg3 f2 Na7 Rf5 Raa4 Rf7 Rhd4 Qf5 h7 Qh5 Ba1 Qh1 Kg4 b2 Kg5 b1N Bb2 Rb7 c7 Nd2 Kg4 Ndf3 Kg3 Bh6 Rgg4 Bg7 Rg8 Kf5 h8R e5 Rh6 e4 Re6 Qh6 Rh8 Qe3 Rh1 Qd3 Rb8 Qe3 c8B Rc7 Ba6 Qh6 Bd3 Qh8 Nh3 g1B Re5+ Kf6 Bg2 f1N+ Kf4 Ne3 R8b5 Bf2 Ng1 Qh4 Bh3 Qh6+ Rgg5 Qh8 Be6 Qh3 Bb3 Bh4 Rgf5+ Kg6 Re7 Bhf6 Rfe5 Kh6 R5e6 Kg6 Rb8 Kh5 Bbc2 Kh4 Rc8 Na2 Rh2 Nc3 Rg2 Rc4 Bd1 Nb5 Rd5 Rd4 Rc1 Rc4 B1c2 Rc7 Rgg5 Bc3+ Rf6 Bd4 Ba3 Ba1 Bb2 Nc3 Rff5 Ncd1 Bf6 Nc3 Rfe5 Ng4 Kf5 Kg3 R7e6 Kf2 Kf4 Kf1 Rdd4 Ne3 Rg4
b1N1B2N/q1pqN2K/R6N/4PpN1/R4Bn1/nbkN1P1b/BrN4b/2r5 b - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 Qd7 a4 Qd6 axb5 Qd8 d4 g5 hxg5 e5 d6 Bh6 d5 Bf8 Qd4 exd4 Kd2 Kd7 Kd3 h5 Ke4 a5 Kf5 d3 g4 f6 Kg6 f5 e4 a4 b4 h4 e5 h3 b6 h2 b7 d2 b5 d1B f3 a3 b6 a2 Ne2 Rh5 Na3 Nf6 Nf4 Be7 Bb5+ Nc6 b8N+ Ke8 b7 Ra5 d7+ Kf8 d6 Na7 Nc6 Rh8 b8N Bc2 Nd3 Rh5 Bf4 Bb3 Nc2 Rh4 Rhb1 Be6 Rb4 Bb7 Ra4 Qc8 d8N h1B d7 Bb3 Nf7 Rh2 d8N Bg2 Nh8 Bh3 Ndf7 Bc5 Ne7 Ba8 Bd7 Nb5 Be8 Qd7 Nc8 Bg1 Nc6 Na3 N6e7 Rc5 Kh6 Re2 g6 Bh2 g5 Ng4+ Kh7 Rc4 Rf1 a1Q Rh1 Qad4 Ra1 Qa7 Ra6 Nb1 R1a5 Na3 Ra4 Qe6 Bb5 Qd7 g7+ Ke8 g8B Rc6 g6 Rf2 Nd4 Rb2 g7 Rc1 Nc2 Be6 Rb4 Qc6 Nfd6+ Kd7 Ndf7 Ba2 Re4 Ke6 Rea4 Qd6 Be8 Bc4 Neg6 Kd5 Ng5+ Qe6 Bgf7 Ba2 g8N Bc4 Ne3+ Kd4 Nh6 Kc3 Nge7 Qd7 Nc2 Ba2 Bd5 Bc4 Bc6 Be6 Bd5 Bf7 Ba2 Be6 Bf7 Bb3 Be8
1n1bNkN1/P2PB3/q3p2N/1R2nNR1/1K5n/R1rp1p2/2B1NB2/2N3r1 b - - 0 1 legal: proof: e4 a5 a4 d5 exd5 b5 axb5 h5 b4 h4 bxa5 h3 gxh3 Nf6 h4 Ng8 h5 Bh3 Be2 Bd7 Bf1 Bc8 d4 c5 d6 g5 f3 g4 d5 g3 Qd4 Bg4 fxg4 cxd4 Kd2 f5 c4 e6 h4 f4 a6 f3 d7+ Kf7 a7 g2 g5 Ba3 c5 Ne7 d6 Ng6 h6 Qa5+ Nc3 Rh7 d8B Bb4 h5 Rg7 b6 Rh7 b7 Rg7 d7 Qa3 c6 Nf8 g6+ Kg8 c7 Bc5 c8N Nh7 Nge2 g1N Nd6 Qa4 Ne8 Nc6 b8R Qa3 Bf6 Ne5 Rb5 Nc6 Na2 Rf7 g7 Nh3 Rg1 Rb8 Rg5 Bf8 Kc2 Nf2 Be3 Nd1 Bf2 Nc3 Nac1 Qa6 Kb3 Rc8 Ra3 Be7 Bh3 Rf8 Bf5 Nd5 Bc2 d3 Kc4 Kf7 g8N Ne3+ Kc3 Nb8+ Kb3 Rc5 Kb4 Nf1 Rd5 Ng5 h7 Bd8 h6 Ne3 Re5 Kg6 h8N+ Kh7 Rd5 Ng2 Ng6 Rc3 Nh4 Nf7 Nf5 Nh4 Rdc5 Kg6 h7 Ne5 h8N+ Kh7 Nf7 Kg6 Ngh6 Rg8 Rd5 Rg7 Ng8 Kh7 N7h6 Kg6 Ng4 Kf7 N4h6+ Kf8 Nfg3 Nc4 Rg5 Ne5 Ngf5 Rg6 Rh5 Rg3 Rg5 Rg1 Be7+
nR1Bb1Bn/3r1PNK/R1b4R/3Bb3/3N1P2/B2B1B2/p1q2p1p/1N1k2b1 b - - 0 1 legal: proof: f4 g5 a4 b5 axb5 c5 d4 a5 dxc5 f5 h4 g4 e4 Nf6 h5 Ng8 exf5 Na6 Qf3 gxf3 g4 Nb8 g5 Ra7 Kd1 Ra6 Ke1 Rg6 hxg6 Bb7 Rh4 Ba6 Rh1 Bc8 Kd2 d5 Kd3 Kd7 b4 h5 c4 e5 g7 h4 b6 Kc6 f6 d4 Ke4 a4 f7 a3 b7 d3 g6 h3 Ne2 Na6 b8R Bb7 Kf5 e4 Bb2 e3 b5+ Kd7 b6 Kc6 Bf6 Qc7 Bd8 d2 Bg2 Ba8 b7 d1B Rh2 Bd6 Nd4+ Kd7 Bh1 Be5 c6+ Kd6 c5+ Kd5 Kg5 Qc8 c7 Kc4 c6 Ne7 g8N Kd3 g7 e2 Nh6 e1B g8B Bf2 Nhf5 Ba4 Ng7 Bg1 Bg2 f2 Bf3 Ng6 Rh1 Qd7 c8B Qc7 Be6 Rh6 Kf5 Nh8 Bed5 Rd6 Kg5 Rd7 Kh6 Qc8 c7 Bc6 Kh7 Ke3 Nc3 Kd2 Nb1+ Ke1 Bfe4 Kd1 Bd3 Nc5 Ra2 Na4 Ra1 Nb6 Ra2 Re7 Rh2 Be8 Rh1 Qd7 c8B Qc6 Bd7 Qc2 Bg4+ Ke1 Bgf3 Rd7 Rb2 a2 Rb3 Qe2 Ra3 Kd1 Ra6 Bc7 Rc8 Be5 b8B Bc6 Bd6 Na8 Rb8 Bf6 Rh2 Be5 Rg2 h2 Rg6 Rb7 Rh6 Rd7 Bh1 Qb2 Ba3 Qc2 Bhf3+
1R2N3/2bQK3/1P1QN3/2N4q/p2P1n1N/n5kr/BB2n1N1/r3n1BB b - - 0 1 legal: proof: g4 d5 e4 b5 a4 h5 axb5 f5 exf5 d4 c3 Nc6 cxd4 Nb8 gxh5 e5 b4 c5 bxc5 e4 d3 Bd7 Ra3 Be6 Rc3 Bc4 dxc4 Qh4 Rb3 Qd8 Rd3 exd3 Kd2 Ke7 Ke3 Kf6 Kf4 a5 h4 g6 c6 a4 b6 d2 h6 Qe8 c7 Bg7 c8N Qe6 h7 Qe1 h5 Qe6 c5 Nh6 c6 Nf7 c7 Re8 h8N Qe2 h6 Ne5 h7 Qd3 Qg4 d1N Nh3 Nc4 Bb2 Rf8 Nd6 Ra6 c8B Rf7 Bb7 Bf8 Nd2 Na5 Ne8+ Ke7 Kg5 Nd7 f4 Ne3 Ne4 Nf6 Nc5 Qb5 Bc4 Nh5 Ba2 Ra7 Bg2 Nc2 f6+ Kd8 f5 Ne1 Rg1 Nf4 Bh1 Bd6 Rg3 Rg7 f7 Ke7 f8N Bc7 Nfe6 Nc4 Rf3 Na3 Rf1 Ne2 Nhf4 Ra8 Ng2 Nf4 Rf2 Ra5 Rf3 Qe2 Rh3 Rb5 Re3 Rb3 Re5 Rg8 Rd5 Re3 Rd8 Rh3 Rb8 Qb5 Nf6 Kd6 Ne8+ Kc6 Kf6 g5 Ke7 Rg6 Qh5 g4 f6 g3 f7 Qe2 Qf5 Qh5 f8Q Rf6 Ne3+ g2 Qg4 Rf5 Ng6 Rg5 h8B Re5 Nc4 Kd5 Nh4 Re4 Be5 g1N Bd6 Nge2 Qf6 Nfg2 Bh2 Ngf4 Nf3 Re3 Bg1 Rc3 Qh6 Rc1 Qgg7 Ra1 Nh4+ Nfg2 Nb7 Ke4 Ne3 Nf3 Qhf6 Ngf4 Neg2 Ne1 Qe5+ Kd3 Qd6 Ke4 Ng6 Kf3 Nbc5 Kg3 N6h4+ Qg4 Qf7 Qf3 Qf5 Qh5 Qfd5 Qh6 Qd7 Qh5 Q5d6
NQR1b3/2pN1nB1/nQ4nN/2N1P2q/N6r/n1k4B/n1P3B1/1r1B3K b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 d4 e5 dxe5 f4 a4 f3 e4 b4 a6 Bc5 a5 Bb6 Ra3 Nh6 Re3 Ng8 Re2 fxe2 axb6 Qe7 a7 Qd8 Kd2 e1N b7 Nf3+ Ke2 Nd4+ Ke1 Nf5 exf5 Qe7 Be2 Qf6 Bf1 Qd8 f4 Kf7 Kf2 h5 g4 d5 Kg2 h4 f6 Ke6 g6 b3 f5+ Kd7 g7 Kc6 g5 Kc5 g6 Kb4 f7 b2 f8N d4 f6 d3 f7 d2 Ne6 Nd7 f8N Nb8 Nc3 b1N Na4 Qd6 Be2 Na3 Nh3 Na6 b8Q+ Qb6 Nd7 Nc5 Nf2 Nh6 g8B Na6 g7 Nf7 Nb2 Kc3 Nec5 Qh6 Qg1 d1N Ng4 Qh5 Nh6 h3+ Kh2 Bb7 Bg5 Bd5 Bf6 Bc6 Bh7 Bb5 g8B Bc6 Be4 Ba4 Qc8 Rb8 a8N Rb4 Qb8 Rb6 Nc4 Rb1 Nb2 Bc6 Qf2 Ba4 Kg1 h2+ Kg2 Bc6 Bg7 Bb5 Rf1 h1N Kg1 Rh7 Bg2 Ng3 Bh3 Nf5 Kh1 Rh8 Bh7 Nh4 Be4 Bc6 Beg2 Ng6 Qf6 Ba4 Qfb6 Bb5 Nf6 Be8 Nfd7 Ne3 Bd1 Nd5 Rf2 Ndb4 Rf1 Na2 Rf5 Nd6 Rf8 Nf7 Nf6 Bb5 Rc8 Be8 Nfd7 Qe2 Ng4 Rh4 Nh6 Qh5 Nba4+
n2RR1B1/6nR/b1P4B/R3B1R1/KPQr3p/1n2q3/QkB1rnN1/6r1 b - - 0 1 illegal: No possible last move
1N4n1/3Q4/1R1Q2B1/B1B3QQ/qp2bPK1/Qr1P2N1/B2qn2q/qk4q1 b - - 0 1 illegal: No possible last move
BK1Q4/5k2/1bb1R3/2pB1b1B/bNn1R2B/R5P1/1R1bP2n/1bb2B1Q b - - 0 1 legal: proof: c4 a5 b4 b5 bxa5 d5 f4 e5 fxe5 b4 Na3 Qd7 Bb2 Ne7 Bc1 Qb5 cxb5 Ng8 Nc4 Bh3 Qa4 Be6 Qd1 Bc8 g3 dxc4 Bb2 h5 Bh3 f5 Ba3 g5 Bc1 f4 Bf1 Rh7 Qc2 Rf7 Qd1 Ra6 Rb1 Rg6 Ra1 Rf5 g4 Rg7 gxf5 g4 Qb3 g3 Qc2 g2 Qd1 Rg3 hxg3 Bg7 Rh4 Bh6 Rh1 Bf8 Kf2 c5 Kf3 h4 Ke4 b3 Kd5 b2 d4 b1B a4 c3 f6 c2 a6 h3 a5 h2 e6 f3 b6 f2 e7 Bg7 Kd6 Bd7 Kc7 Kf7 e8B+ Ke6 b7 Nh6 f7 Bc8 f8R Ke7 d5 Bf6 a7 Bh3 a8B Bh8 d6+ Ke6 a6 Bd4 d7 Bc3 d8Q Bf5 a7 Nc6 b8R Na5 Bg5 c1B Ra3 Ng4 Bh5 Nc4 Nf3 g1B Rb2 Ba5+ Kb8 Bb6 Ne1 Bfc2 Rg8 Ba4 Rg6+ Kf7 Nd3 Bd2 Nb4 Bc1 Bh3 f1B Bh4 Bge3 Bc6 Bg5 a8B Bgd2 Bf3 Bg2 Rf1 h1B Re6+ Bg6 Rf2 Nh2 Bfd5+ Bf3 Bf1 Bg2 Rb1 Bh3 Rb2 Bf5 Qe1 B3e4 Rf4 Bb1 Rfe4 Bc6 Bh3 Bc2 Qh1 B2a4 Bf3 Bh7 Bf1 Bhg6 Rg4 Bb1 Rge4 Bf5 Bh5+
4QBB1/1rq2bBN/2bR1qRR/b2r1p2/2kp2P1/4bQ2/1R1R1P2/B4K2 b - - 0 1 legal: proof: b4 b5 g4 e5 a4 f5 d4 c5 dxe5 a5 bxc5 Nf6 Nc3 Na6 Na2 Nb4 axb5 Nbd5 Nb4 axb4 h3 Ne3 g5 Neg4 gxf6 g5 Nf3 Ne3 Ng1 g4 Ra2 g3 Ra1 Ng4 hxg4 Ra7 Bh3 Ra5 Bf1 Ra8 e4 Kf7 c4 Ke6 c6 h5 f7 d5 c5 b3 b6 g2 c7 d4 c6 h4 b7 h3 b8B b2 Ra6 b1B Nf3 g1B Ng5+ Ke7 e6 Kd6 e7 Kc5 e8Q Rh5 e5 Bd6 f8B Be4 e6 Bg2 e7 Be6 c8R Ra7 c7 Bc6 Bb2 Bf7 Ba1 Be6 Nh7 Bf7 Bc4 Bf4 Kf1 Bgh2 Qf3 Be3 Be6 Qd7 Rd8 Rh6 c8R Rb7 Be5 Qc7 Rb8 Rf6 Bc4 Rd6 Beg7 Rd5 Rd6 Be5 Ra2 h2 Rd2 Kb4 Rg6 Bd6 Ba2 Bc5 Rd8 Bb6 Rdd6 Ba5 Qd8 Re5 e8R Rd5 Re5 Kc5 Qe8 Kb5 Ree6 Kb4 Rg1 h1Q Rh6 Qh5 Reg6 Qg5 Rd7+ Rd6 Kg2 Bb3 Rb1 Qf6 Rbb2 Kc3 Rd8 Bg8 Be6 Rd5 Rd6 Kc4 Kf1 Bf7 Qd7 Be8 Bg8 Bf7 Qe8
2r1BQ1r/3R4/pp1Bq1P1/1Q1r4/1R1RNq2/1k2B2R/3P2n1/3rBnBK b - - 0 1 legal: proof: e4 f5 exf5 g5 b4 c5 bxc5 g4 a4 g3 a5 Bh6 hxg3 Be3 g4 Bh6 g5 Bf8 c4 d5 c6 b6 c5 Be6 a6 Bd7 Na3 Bc8 Nc4 Bb7 axb7 dxc4 g4 Kf7 f4 e5 Kf2 h5 Kg2 a6 c7 c3 c8Q e4 f6 c2 c6 e3 f5 h4 c7 e2 g6+ Ke8 g7 Kf7 g5 e1Q g6+ Ke8 f7+ Ke7 f6+ Kd6 Qe2 Kd5 Ba3 c1R Nh3 Bd6 f8B Bg3 f7 Nd7 b8B Nh6 g8R Be5 Bac5 Ng4 Be3 Bf4 Ra4 Ndf6 Ng5 Qd6 Rg7 Nh5 Rh3 Rc5 Ne4 Nh2 Kh1 Bg5 Bg1 Qf4 Bd6 Be7 f8B Rb5 Bg2 Nf1 Qd8 Ra5 c8R Rc5 Qb5 Qe2 Rg3 h3 Rh7 h2 Bh6 Qeg4 Rh3 Qe6 Qg8 Bf8 Rd8 Be7 Bbc7 Rc8 Bf3 Bf8 Rhd7 Be7 Kg2 h1R Qf8 Bf6 Bg5 Bc3 Bh4 Bb4 Be1 Ng7 Bg4 Nf5 Be3 Rh2+ Kg1 Nh4 Bd1 Re2 Kh1 Ng2 Bg1 Rf2 Bb3+ Kd4 Bd5 Rc1 Bc6 Rd1 Bb8 Qe3 Bbc7 Rf5 Bf4+ Rd5 Bcd6 Rb1 Qc5+ Kd3 Qb5+ Kc2 Bh6 Qg3 Bhe3 Kb3 Ra7 Rc5 Be8 Rd5 Rc7 Qg5 Rdd7 Qgf6 Rc4 Rd1 Rd4 Qf4 Raxb4+
K2N3q/4p3/N4BPb/Q2NBBp1/N7/P1pNknB1/1nQq3R/3n3b b - - 0 1 legal: proof: b4 b5 e4 d5 g4 a5 c4 f5 exf5 Be6 cxd5 Bc8 bxa5 b4 a3 b3 Ra2 bxa2 f6 Bd7 Qe2 Bf5 Qd1 Bc8 f4 Ra6 f7+ Kd7 f5 Rh6 f6 Rh5 Ne2 Rg5 Ng1 Rf5 gxf5 g5 h4 h6 h5 Rh7 Rh2 Rg7 Rh1 Rg6 hxg6 h5 Ke2 Kd6 Kf3 Kc5 Ke4 a1Q d4+ Kd6 a6 c5 a7 c4 a8N h4 Qc2 h3 Rh2 Qc3 Nf3 Nd7 Nb6 Qb2 Na4 Qc3 Bf4+ Ne5 Bd3 Qb2 Nbc3 Qb1 Bg3 Nh6 Ne1 Bg7 f8N Qa5 f7 Qbb4 f6 Qbb6 Nd7 Nf5 f8B Qd8 f7 Ne3 Nb8 Bb7 Na6 Bh6 Bg7 Qb4 f8B Qda5 Bf6 Nd1 B8g7 Bc8 Bh8 Nb2 Bhg7 Kd7 d6 Kc6 d7 Bb7 d8Q Nf3 Nd5 Qc3 Bfe5 Qd2 Bgf6 Qac3 Qa5 Ba8 Kf5 Bb7 Ke6 Ba8 Bf5 Bb7 Rg2 h2 Nd3 h1N Rh2 Ba8 Qb3 Nf2 Qc2 Kb7 Kd7 Nfd1 Kd8 Kc6 Kc8 Bb7+ Kb8 Ba8 Qc7+ Kb5 Ne3 Bc6 d5 Qd4 d6 c3 Nd5 Kc4 d7 Qh4 d8N Qd4 Bd6 Qe5 Qa5 Kd4 Ndb6 Ke3 Bc7 Qd4 Bce5 Be4 Nb7 Qd8+ Ka7 Qh8 Nd8 Ne1 Kb8 Bh1 Ka7 Nf3 Kb8 Qh7 Ka8 Qh8 Nd5#
BKQQn3/QnB1Pp2/8/3kB2p/3B2rp/2b1RPnQ/3Rp1r1/1N3B2 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 e5 a4 d5 axb5 Qf6 e4 Qf4 exd5 e4 Qd3 Qd6 Qd1 Qe5 dxe5 g5 h4 Bd7 g4 Bf5 h5 Bc8 Nd2 Be6 Ndf3 Bd6 Nh4 gxh4 g5 Bf5 g6 Bf8 g7 Bg6 hxg6 Kd7 Ra6 Kd8 Ra1 Ke8 Kd2 Ke7 Ke3 h5 Kd4 a5 c4 a4 f3 e3 c6 a3 Kc5 a2 Kb6 Rh6 Kc7 Nd7 e6 Ra4 d6+ Kf6 e7 Ke5 b6 Ndf6 d7 Ra5 d8B Rb5 c5 Ra5 b7 Ra7 Qd4+ Ke6 Rh2 Ra8 b8B Rh7 Rd2 Ng4 Bb2 N4h6 Ne2 Rh8 Re1 a1N Nc3 Nb3 Nb1 Nf6 g8Q Nd7 g7 Ra2 Qg4+ Nf5 Bd4 Kd5 Qh3 Ne5 Kb7 Ra8 c7 Ra3 c8B Ra4 c6 Nc4 Bbe5 Ng3 c7 Nba5+ Kb8 Nd6 Bd7 Rh7 c8Q Ne8 Bdc7 Nb7 Qh8 Rh6 g8Q Rg6 Ree2 Bg7 Bc6+ Kc4 Qf8 Rg4 Be4 Ra2 Qh6 Bh8 Qb6 Rb2 Qa7 Rc2 Rd3 Rd2 Re1 Rg2 Re2 Bg7 Red2 e2 Re3 Ned6 Qfd8 Ne8 Bf4 Bh8 Bc5 Bc3 Bd4 Nc5 Ba8 Nb7 Bfd6 Kd5 B6e5+
1N1q1b2/5r2/nq1RKRBR/2Q1N3/bbP3Qn/1Pr4n/N3q2k/1N4NR b - - 0 1 illegal: No possible last move
1Nq2qB1/5P1n/1KQ1PQN1/N2QN2b/qRQr3Q/1R1b4/b1r3n1/5n1k b - - 0 1 legal: proof: c4 b5 g4 f5 gxf5 e5 d4 g5 a4 d5 axb5 g4 h4 Be7 Bd2 Bg5 hxg5 Qe7 Bc3 Bb7 cxd5 Qf6 d6 Bc8 d5 Qd8 Bd4 exd4 Kd2 Kf7 Kd3 c5 Kc4 a5 b4 h5 e4 d3 f4 d2 g6+ Kf6 g7 a4 d7 g3 b6 h4 Kb5 a3 b7 h3 d6 c4 Rh2 a2 Qh5 d1B Nf3 g2 Na3 g1N Rb2 c3 Nc4 c2 Rab1 a1Q Nfe5 c1Q Rb3 h2 Na5 h1B Bc4 Ne7 g8Q Qf8 d8Q Nh3 d7 Qa4+ Kb6 Qc2 Qe2 Rh4 b5 Qc3 Qd2 Bh5 Qdd5 Bg2 Qe8 Bf1 d8Q Be6 Qec6 Bd3 Rb4 Rg4 R1b3 Rg2 Qg4 Rc2 Qf3 Ng1 Qg3 Nf3 Qh3 Ne1 Qh4+ Kg7 f6+ Kh6 f7 Ng2 f5 Nd7+ Kc7 Ra6 b8Q Nf6 b6 Nh7 f6 Nf5 b7 Nfe3 Qbc8 Nf1 b8N Ra7+ Kb6 Rd7 Qdb5 Rd4 Qbd5 Qg7 f8N Bg8 Nfd7 Qf8 Ng6 Bf7 e5 Be6 Qh2 Kg5 Qa6 Kg4 Qdc8 Be4 Qh4+ Kf3 Qd8 Bf5 Qdc5 Nge3 Qab5 Kg2 Qcc8 Rf2 Bg8 Bb1 e6 Rc2 f7 Ba2 Nde5 Bd3 Qdf6 Kg1 Qce8 Ng2 Qd5 Qc8 Qbc4 Rb2 Qhf4 Kh1 Qec6 Rc2 Q4h4+
RnNNK3/N3P2q/kn4N1/4P2b/2Rr4/Q2QQ1B1/b1br1b1Q/r1N1n3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 fxe5 Kd7 c4 Ke7 cxd5 Ke8 gxh5 a6 b4 Kd7 b6 Rh6 b7 Ra7 b5 Ke8 b6 Rh8 Bh3 Ra8 Bd7+ Ke7 Bb5 axb5 Ra4 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 c5 Kf4 f5 h4 c4 e4 b4 d4 b3 d6 Kc6 d5+ Kb5 d7 g6 d6 c3 e6 c2 Ke5 f4 e7 f3 Ke6 b2 Kf7 f2 e5 f1B h6 g5 h7 g4 h5 g3 h6 g2 Qe2+ Kc5 Nc3 b1B Nd5 Nf6 Qe3+ Kb5 Rh4 Ne4 Ne2 Nd2 Rc4 Qc7 d8Q g1N d7 Ba2 Ke8 Ra4 Qa3 Rg8 h8Q Rg2 h7 Bh6 Qe3 Ka6 Qa3 Nc6 b8Q Be3 b7 Ngf3 Nb6 Bf2 Qe3 Ne1 Qa7+ Kb5 Qa3 Nb8 Qe3 Rb4 Qaa3 Qd6 Rc7 Qh6 Rc4 Nb3 Bd2 Nc5 Nc1 Be2 Bc3 Na4 Bd2 Na6 b8N Qh2 Nc6 Nb8 Na7+ Ka6 Bc3 Bb7 Nbc8 Be4 Rc5 Rd4 Rc4 Nf3 Be1 Bf5 Qad3 Nb6 Qc7 Qh6 d8N Rh2 Qd6 Qh4 Nb3 c1R Qb4 Rd1 Nc1 Rh1 Qbc3 Rd2 Qb4 Bd1 Qb2 Bc2 Qbc3 Bg4 Qb2 Bg1 Bg3 Bf2 Qbc3 Ne1 Qa3+ Na4 Qg7 Bf3 h8N Qh7 Ng6 Bh5 Qgh6 Rf1 Qhf4 Rg1 Qh4 Rh1 Qh2 Rf1 Qb2 Nb6 Qba3+ Ba4+ Ndc6 Nf3 Qb4 Kb7 Ne2 Bc2 Nb5 Bab3 Ra8 Ba2 Qba3 Ra1 Nba7 Ne1 Nc1 Rh4 Qab3 Rd4 Nd8+ Ka6 Qa3+
2B5/bqqn3q/2N4B/B2b2KB/qPNQ1r1N/N4B2/2r2qP1/1QrR3k b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 d5 c4 g5 cxd5 e4 Ra4 e3 Rf4 Nd7 b4 Ne5 fxe3 gxf4 e4 Nc6 e5 Nd4 Bb2 Ne6 Bc1 Ng5 hxg5 Bh6 Qa4 Bg7 Qd1 Bf8 Kf2 Kd7 Kf3 f5 e4 c5 d4 a5 g6 h5 e6+ Kd6 e7 c4 e8Q c3 b6 a4 g7 h4 b7 h3 b8B+ Qc7 Qb3 a3 Qg6+ Nf6 g8B a2 Na3 a1Q Ba6 c2 Qc4 Be6 Bc8 h2 Bh7 Nd7 e5+ Ke7 Bd2 c1R Qd3 Bg8 e6 Kd6 e7+ Be6 Bg8 Rh4 e8B Ra5 Qb1 Rac5 Qg4 R5c2 Bh5 Qa2 Qg7 Qb3+ Be3 Qa4 Ba7 Be7 Bb6 Rg4 Ba5 Bh4 Ne2 Bf2 Rd1 h1Q Ng1 Qh4 Bd2 Qe7 Qf6 Qh7 Bgf7 Rg8 Bg4 Rf8 Bfh5 Qb7 Ke2 Be3 Nf3 Bf2 Nh4 f3+ Kd3 Qc7 Bh6 f4+ Ng6 Be3 Ke4 f2 Bf3 f1Q Qh4 Bf7 Kf5 Qfb5 Kg5 Qbb7 Qg4 Bg1 Nh4 Bg8 Be2 f3 Qf4+ Ke7 d6+ Ke6 Qd2 f2 d5+ Ke5 Bef3 f1Q Qd3 Nc5 d7 Qf2 d8N Nd7 d6 Rf4 Qc4 Bd5 Qc5 Qf1 Qc4 Ba7 Nf7+ Ke6 Ne5 Qe1 Ng4 Qf2 Ne3 Ke5 Qca2 Qd2 Nec4+ Kd4 Qab2+ Kd3 Nb6 Ke3 Nbc4+ Kf2 Qd4+ Kg3 Qba1 Kh2 Qb1 Nf8 d7 Qf2 d8N Nd7 Rd2 Kg1 Nc6 Kh1 Rd1+
N1rb1B2/3R3P/BB1nR3/KRr1k3/7b/2rrB3/Q1P1B1qR/1r2Qb1r b - - 0 1 legal: proof: d4 c5 dxc5 b5 f4 f5 a4 h6 axb5 Nf6 g4 Rg8 gxf5 Rh8 e4 Rh7 e5 Nc6 Nc3 Nd4 Ne4 Ng8 f6 Rh8 Ng5 hxg5 f5 g4 Bg5 Ne6 Bc1 Ng5 e6 Nf7 Qd4 Qb6 exf7+ Kd8 Qd1 Kc7 Bd2 Kb7 Be3 Qd8 Bc1 Kc7 Kd2 g5 Kc3 a5 b4 e5 h4 d5 c6 Kd6 c7 g3 h5 g4 h6 g2 b6 g3 h7 a4 b5 a3 Kb4 d4 b7 a2 b8Q d3 b6 d2 b7 e4 Qe1 d1R Rh2 e3 Nf3 g1R Qa7 e2 b8R g2 Ne5 Ne7 Rb5 Rd3 Nd7 Ba6 c8B Rh1 Be3 g1R Rd1 a1R Nb6 Rb1+ Ka5 Rg5 Rd2 Bh6 f8R Rhg8 Bb7 Rc8 f7 Rc3 f6 Rgc5 Re8 Ke5 f8B Qd5 f7 Bg5 Na8 Qg2 Bh6 Rh8 f8B Rg8 Bg1 Bh4 Bhe3 Bf6 Qh4 e1B Be2 Rh8 Qf2 Bg5 Qf1 Beh4 Qe1 Bf6 Rc8 Rg8 Rc6 Nf5 Bc8 Bfg5 Qf7 Nd6 Qa2 Rcd5 Bb6 Bd8 Be3 Rh8 Rbc5 Bc4 Rb5 Rc5 Ba6 Bc7 Be7 Rc8 Bf8 Bcd8 Rd1 Nf7 Rg6 Nd6 Re6+ Kf5 Qd2 Rdd5 Bf2 Ne8 Bh5 Bf1 Be2 Rd4 Qe1 Kf4 Rc6 Ke5 Be3 Rd6 Rd4 Rdd5 Rb4 Rdd3 Rd4 Kf5 Rh6 Ke5 Rd7 Nd6 Re6+
r1Q1b2Q/R3NQ2/nQ1KQq2/r7/1P3p2/1r1Nb1n1/nN1k1b1P/1RN1B3 b - - 0 1 illegal: No possible last move
k7/3Kn3/RQrB1BqB/b2b1B2/3pPQQ1/b3PQQ1/nq3R1N/nr6 b - - 0 1 illegal: No possible last move
8/3bkr2/3RnBQ1/K2Pp2Q/BB6/1B1rN2r/R1nqbnP1/1RR2qR1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 Na6 exf5 Nb8 h4 Bd7 f4 Bg7 f6 Kf8 f5 Bh6 Nc3 Bc8 Nce2 Ke8 Nf4 gxf4 Ra5 Bd7 Ra1 Bg5 hxg5 Bc8 d4 h5 Kd2 e5 Kc3 c5 b4 a5 g6 f3 d6 c4 b6 h4 b7 a4 f7+ Kf8 b5 f2 Kb4 a3 b6 h3 d7 c3 g7+ Ke7 f8R a2 f6+ Ke6 f7 h2 Nh3 c2 Qh5 Nh6 g8B Qf6 d8R Nd7 b8R Ng4 b7 Kd6 Nf4 Ra7 Nd5 Qg7 Bg5 c1Q Rg1 h1R Bf6 Qgg5 Bb5 f1B Ba4 Rh3 Ne3 Nf2 Ra8 Bd3 Rb1 a1N b8Q+ Rc7 Rfe8 Be2 Ka5 Qf1 Rf8 Nc2 Qb6+ Rc6 Rfe8 Rh7 f8B+ Re7 Qa6 Qf4 Qd3 Rc3 Qdg6 Rd3 Bgb3 Qh6 d5 Qf4 Bh6 Rf7 Re7 Qd4 Bf8 Qb2 Ra7 Qbc1 Rc7 Qd2+ Rc3 Bb7 Ra8 Nc5 Ra6+ Bc6 Re6+ Kd7 Rd6+ Ke8 B8e7 Bd7 Ra7 Nb4 Rcc1 Ne6 Rdc6 Nc2+ Bb4 Na1 Rd6 Kf8 Rc2 Ke8 Ra2 Nc2 Rc7 Kf8 Bg7+ Ke7 Rcc6 Na1 Rcc1 Nc2 Bf6+
3b3R/4R3/Q1qQPq1n/Q5rQ/1n3Q2/1qr3pb/1N2NPB1/Rb1k1K1R b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 f5 b4 e5 d6 f4 d5 f3 Ra3 Ba6 Rxf3 Bb7 Bb2 Bc8 Bd4 exd4 Rf6 Bh3 Rf7 Bc8 e4 a5 h4 g5 h6 c5 h7 d3 h5 c4 e5 a4 h6 c3 b6 c2 b5 c1Q b7 a3 b6 a2 Nh3 a1Q Nf4 g4 Bg2 g3 Nc3 d2+ Kf1 Ra5 Nd3 Qf6 Ne2 Na6 b8R Qa4 b7 Qcc6 Qa1 d1B Ra8 Be7 b8Q Qb3 d7+ Kd8 Qb4 Kc7 Qf4 Kb6 d8Q+ Kb5 d6 Nb4 d7 Bc2 Qf8 Bd8 Qd6 Bb1 Re7 Qa2 Ra6 Ka4 Ra7 Kb3 e6 Kc2 Ra6 Rg5 Ra7 Qb3 Qa6 Kd1 Ra8 Bb6 d8Q Bb7 Q8c7 Qcc3 Qcc5 Bd8 Qcc7 Bf3 Qca5 Qc6 Raa7 Bg4 Ra8 Qf8 Raa7 Bh3 Ra8 Nf6 Raa7 Rhg8 h8Q Ng4 h7 Nh6 Qhe5 Qf6 h8R Rf8 Qef5 Re8 Q5g4 Reg8 Qh5 Rc5 Ra8 Rgg5 Qac7 Bf5 Qab7 Qbd5 Ra1 Rc3 Qa5 Bh3 Qba6 Qb3 Nb2+
r1k1n2N/RBq5/1bPR4/1Q1n2q1/2RP2n1/KR2rb1R/Q1bp4/QQ5N b - - 0 1 illegal: No possible last move, all moves rejected
3q3R/2bprn1P/qr2R3/Q3B2B/3RR1P1/3qr1BN/K5Bn/b2kQ2B b - - 0 1 legal: proof: d4 b5 g4 g5 a4 f5 axb5 c5 dxc5 h5 f4 h4 Nd2 Bh6 Ne4 Bb7 fxg5 Bf8 Ng3 hxg3 e3 f4 e4 Bd5 Nh3 Be6 Ng1 Bf5 exf5 Bh6 Bc4 Bg7 Bf1 Bf8 Kd2 Kf7 Kc3 a5 Kb3 e5 h4 g2 c4 a4+ Ka2 a3 b4 e4 h5 f3 g6+ Kf6 g7 Ke5 c6 f2 c5 e3 h6 Kf4 b6 Ra5 b7 Bd6 c7 Rh7 c8R Be7 c6 Bg5 c7 Rb5 f6 Rh8 h7 Rf5 f7 Kg3 f8Q e2 b5 e1Q b6 Rb5 Bb2 Qd2 Nh3 g1R Qb4 Bf4 Bg2 f1Q Qa5 Qdd3 Be5 Nc6 b8R Nd4 b7 Nh6 g8B Rb6 Bf7 Nf3 Bh5 Re8 Qdd2 Re7 Re1 Qa6 Re4 Qfd3 Qdb4 Rc1 Rhe1 Nh2 Rd4 Rc3 Ree4 Rb3 Ra8 Nf7 b8B Qf1 Qd2 Re3 Qc1 Qfd3 Qcc3 Qg8 Re8 Qg5 c8B Qf6 Ng1 Kf2 Nh3+ Ke2 Bb7 Kd1 Bbd6 Qh4 Rh8 Qg5 Rag8 Qf6 Rg6 Qh4 Re6 Qf6 Ka1 a2 Qcb4 Qg5 Kb2 a1B+ Ka2 Qg8 Bh1 Bh6 Bg3 Qd8 Bde5 Bg7 Rf4 Bf8 Bbg2 Bh6 Rfe4 Bf4 Bf6 Bb8 Bfe5 Bc7 Qe1+
nQr2R2/PPQ1N1R1/2b2B2/3BqBR1/2r1Rk2/K2B1q2/1Rb4p/n2n1q2 b - - 0 1 legal: proof: h4 a5 e4 f5 exf5 b5 b4 d5 c3 g5 hxg5 Bg7 Na3 Bf6 Nc4 dxc4 bxa5 b4 Qg4 b3 Qd1 Bd4 Be2 Bc5 Bf1 Bb4 cxb4 Qd4 Ba3 Qd3 Bc1 Qd8 a4 Kd7 g4 Kd6 f4 c5 d4 h5 Kd2 e5 Kc3 h4 Kb2 h3 d5 e4 g6 c3+ Ka3 e3 g7 e2 b5 e1Q f6 h2 f7 c2 f8R b2 g5 b1B f5 Ke5 d6 c4 g6 c3 f6 Bb7 a6 Qc8 b6 Ke4 f7 Rh5 a7 Rh6 d7 Rh8 d8Q Qe3 a5 Qf2 a6 Qd4 Nh3 Nf6 g8R Nfd7 g7 Rh7 Qc7 Nc5 Re8+ Qe6 f8R Rh4 Rg1 Qd5 Nf4 Na4 Bb2 c1Q Ra2 c2 Ng6 Nc3 Ne7 Nd7 Rg5 Rc8 a8B Qee5 a7 Bc6 Bd3+ Ke3 Qg4 Qf3 Qb4 Qcf1 Ba1 c1N Rb2 Rc4 Qbd6 Ba4 Bd5 Bbc2 b7 Bc6 Qb8 Nb6 Qdc7 Nd1 Be6 Qfe4 Bf5 Qeg2 Rd8 Nb3 Rd4 Kf3 Re4 Qgg3 Rf7 Qgg2 Rgf8 Na8 g8B Qgg3 Rfg7 Qgh3 Re2 Kf4 Bd5 Qhf3 Rb1 Re4 Bc3 Rb4 Rb2 Na1 Bd4 Qd6 Bf6 Qe5 Re1 Rc4 Re4+
1N1Q4/2N4N/P5rk/r1Qnqr1Q/R4BQb/4rNnQ/1pP2bK1/3R3r b - - 0 1 illegal: No possible last move
nB1R3B/4NP1P/p4Bq1/7n/1KNr4/2rNb2n/1b2N3/Q1QkNbnB b - - 0 1 illegal: No possible last move, all moves rejected
Q1q3BN/1b1P4/1Q3R2/qQ2R1Q1/q1Pk2rB/p1r1n3/2QB2q1/KB2b2n b - - 0 1 legal: proof: b4 b5 e4 c5 c4 h5 g4 f5 exf5 d5 gxh5 d4 bxc5 b4 Nc3 b3 axb3 dxc3 b4 Qd7 b5 Qd8 f4 Kd7 h4 g5 d4 e5 h6 a5 b6 Kc6 f6 a4 f5 c2 Kd2 g4 Kc3 g3 Kb2 e4 b7 e3 h7 g2 d5+ Kc7 h5 e2 h6 e1Q d6+ Kc6 f7 Qf2 f6 Nd7 b8Q Qe2 Nf3 g1Q Ng5 Ra6 Bd2 Qeh2 Bd3 Qg4 Re1 Nb6 Re5 Be7 f8B Qgd7 f7 Bf6 Be7 Q7e8 f8Q Qed7 Nf7 Qg2 Qg7 Bh4 Qg5 c1Q+ Ka2 a3 Bb1 Bf2 Qc2 Nf6 Qa7 Rg8 h8Q Ne4 h7 Nd5 Qhf6 Qch1 h8Q Be1 Qhh5 Rb6 Nh8 Nf2 Qa8+ Bb7 Qfg6 Q7c8 d7+ Kc7 c6 Ne3 Bf6 Kd6 c7 Rb3 Q6h6 Qb8 c8B Rc3 Q6g6 Qa5 Q6h6 Ba6 Bb7 Qc8 Bd5 Kc5 Be7+ Kd4 Qb6+ Qac5 Bf7 Bb7 Be6 Rg7 Bg8 Qhg1 Bd8 Nh1 Qgh4+ Rg4 Qch7 Qd5 Bc2 Qe4 Rg5 Bg3 Rf1 Bb8 Ka1 Qg6 Bb1 Qgc6 Qc2 Qgg2 Rgf5 Qa4 Qg3 Re4 Bh4 Bd6 Qgg4 Bg3 Rg5 Be1 Rf6 Qg1 Qg2 Rf4 Qgc6 Rg4 Re5 Qf2 Qg5 Qg2 Qb4 Qca7 Qbb5 Q7a5 Qcb6+
3r4/NQp2P2/B2Q1qb1/r6P/1Nb1n1KB/1Q2kn2/R3BqnB/1Q3n1Q b - - 0 1 legal: proof: b4 d5 f4 h5 c4 e5 cxd5 f5 fxe5 b5 a4 f4 axb5 f3 g3 Be7 Ra6 Bg5 Rg6 Bf4 Rg4 hxg4 gxf4 Be6 Na3 Bf5 Nb1 Bc8 Kf2 Ke7 Kg3 g5 e4 a5 d4 a4 h4 a3 h5 f2 d6+ Ke6 b6 a2 f5+ Kf7 d5 a1N d7 Rh6 b7 Nc2 d6 Qe7 d8Q Ra4 b5 Qf8 d7 Ne1 e6+ Kg7 e5 Ra6 f6+ Kh7 e7 Nf3 e8Q Ne7 e6 Qh8 f7 Ra5 b6 Ng6 e7 Na6 b8Q Qf6 b7 Nh2 Nh3 Nh4 Nf4 Ng2 Nd5 Nc5 Ba6 f1B Na3 Bc4 Nb4 Kg7 Qf1 Rh8 Nb5 Kh6 Bf4 Rf8 Qb1 Nf1+ Kf2 g3+ Kf3 Ne4 Rh2 Rg8 Qa8 Rf8 b8Q Bb7 Qdc8 Bc6 d8B Bd7 Rh4 Bf5 Qec6 Bg6 e8B Rg8 Be7 Rh8 Bd7 Rd8 Bg4 Nge3 Bd6 g2 Na2 g1Q Na7 Neg3 Q8b3 Qh2 Nb4 Qhb2 Qcf5 Ne4 Qab7 Qbd4 Bg3 Qd2 Qcb6 Qc2 Bh3 g4+ Kf4 Qd2 Bf2 g3 Bg4 g2 Rh2 g1N Bh4 Qdd4 Ra2 Qd2 Bd1 Nf3 Be5 Qb2 Bd6 Qf2 Be2 Qh8 Qh3 Ng2+ Kg4 Qf6 Bhg3 Ned2 Qh1 Ne4 Kh3 Kg5 Bh4+ Kf5 Bh2 Nd4 Q6c6 Nf3 Bg1 Ke5 Bh2+ Kd4 Qe6 Rb5 Kg4 Ra5 Q3b2+ Ke3 Qd6 Nc5 Q2c2 Ne4 Qcb3+
3Q1N2/1BR2Pr1/nk2R1qR/2n2B1n/1B3qBr/2R1R1qQ/1KPpr3/7b b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Qd8 f6 Bf8 g4 Nc6 h4 Kf7 f5 Ne5 Nc3 Nc6 Nce2 Nb4 Nf4 gxf4 g5 Bh6 g6+ Ke8 Ne2 Na6 Ng1 Bg5 hxg5 Nb8 Kd2 a5 Kc3 h5 b4 e5 b6 d5 f7+ Kd7 f8Q Kc6 b5+ Kb7 f6 h4 f7 e4 g7 f3 g6 e3 Bh3 d4+ Kb2 e2 Bg4 e1Q Ra3 d3 Nh3 f2 Ng5 f1R Bd2 a4 Ne6 h3 Bb4 d2 Re3 h2 Qf3+ Qd5 Qd8 Qg3 Nf8 Nf6 g8B Ra5 g7 Nh5 Bh7 Na6 g8R Rf2 Bhf5 Re2 Rg6 Qc6 Rge6 Qe4 Qf1 Qef4 Qh3 Rg8 Rc3 Rg7 Re1 h1Q c6+ Ka8 c7 Kb7 Rh6 Qhg2 Re3 Bd7 Rc3 Bc6 c8B+ Ka8 b7+ Ka7 b8R a3+ Kb1 a2+ Kb2 a1N Rb6 Qg1 Bb7 Bh1 Rbe6 Ra4 Rc7 Nb3 Rc3 Rg2 R1e3 Re2 Rc7 Nbc5 Rc3 Qgd4 Re3 Qd7 Ree6 Qc8 b6+ Kb8 Ree3 Ne6 Bg2 Nf6 b7 Ka7 Ba3 Qg5 R7c4 Qg6 b8R Qcc7 Bh5 Qcd6 Rb6 Qb8 Rc8 Nec5 Bb7 Rh4 Bb4 Qbf4 Bhg4 Nh5 Rbe6 Bc6 R6e5 Bh1 Rc7 Kb6 Re6+
R1rkn1K1/Q4PBR/4B1RQ/1N3np1/r7/r1Q5/1nQ1bQ1P/1Rqqq3 b - - 0 1 legal: proof: g4 d5 f4 b5 c4 h5 cxd5 e6 e4 b4 g5 f6 Nc3 b3 axb3 Ke7 b4 Kf7 b5 f5 exf5 Be7 Ne4 Ke8 Nf2 Bf6 Ng4 hxg4 gxf6 Rh4 Bg2 Rh5 Bf1 Rh8 Kf2 c5 Kg3 a5 d4 g5 b4 a4 d6 e5 d5 e4 b6 c4 b5 c3 f7+ Kd7 f8Q e3 f6 a3 f7 c2 b7 e2 f5 e1N b6 a2 f6 Ra6 Bc4 Qe8 Qh6 Qe7 f8Q Ra4 Ne2 Na6 b8Q Qe6 b7 Rh7 Bb2 c1Q Nd4 Rf7 Qc2 Nd3 Qa7 Rg7 b8R+ Nc7 Ra8 Qb1 Nb5 Rb4 f7 Nf6 Qfh8 Rh7 Rd1 Qc1 Rb1 Ne8 Qhc3 Kd8 d7 a1R Qaf2 Ke7 d8R Nd6 Rh8 Rba4 Re1 Rg7 Rh7 Kd8 Re5 Qe8 Re6 Rg8 Rg6 R1a3 Ba1 Nb2 Qa7 Nb7 d6 Qee1+ Qcf2 Re8 d7 Nd6 Be6 Rh8 Rf6 Nce8 Rg6 Nd3 Qc2 Qed1 Bg7 Nb2+ Kg2 g3 Kh3 g2+ Qc3 Ra6 Kg3 Qe1 Kg4 g1Q+ Kh5 Nf5 Qcc7+ Ke7 Bd4 Bb7 Rgg7 Qed1+ Kg6 Ned6 Qc3 Rc8 Qcc2 Ne8 d8Q+ Kf8 Be5 R6a4 Qdd2 Ke7 Qdc3 Qge1 Rg8 Kd8 Rgg7 Nc7 Kf6 Bg2 Rg6 Bf1 Bd4 Be2 Be5 Ne3 Kg7 Nf5+ Kg8 Ne8 Bg7
5Q1r/N1b3BN/1N1R1K1N/1Q1b4/2bNpnPn/Q1Q3b1/Pq6/1Bknb3 b - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Kd7 cxd5 a4 e4 a3 d6 Kc6 d7 Nf6 bxa3 Na6 a4 Ng8 a5 Nb8 d5+ Kd6 Nd2 b5 Rb1 f5 Rb4 Ra6 Rd4 Rc6 Rc4 Rc5 Rd4 Ke5 d6 Ke6 Ra4 Rd5 exd5+ Kf7 Re4 fxe4 f4 e3 Ke2 Kg6 Kd3 Kf5 Kd4 h5 g6 h4 g7 e2 a6 b4 g3 b3 a7 b2 a8Q b1N Ngf3 h3 Qe1 h2 Qa3 Na6 Bb2 Nc3 Nc4 Nc5 Nb6 Nh6 g8N Nd3 Qa1 Kg4 f5 Ba6 f6 Nd1 f7 e1B Be2 Kf5 g4+ Kf4 Qb1 Qe8 d8N Qb5 d7 c6 d6 c5+ Kd5 Ke3 Ke6 c4 Bg7 Nf5 Nc6 Bg3 Rf1 h1B d8Q c3 d7 c2 Qc7 c1B d8Q Nh4 Nh6 Bd2 Na7 Bde1 Nd4 Kd2 Rf6 Bhb7 Qcc5 Nf4+ Ke5 e6 Bd3 Bd5 Qbb3 Qb4 Bb1 Bac4 Qb5 Be7 Qg8 Bd8 f8N Qc3 Qf7 Qb2 Nh7 Kc1 Qff8 Bgf2 Rf7 Bg3 Rd7 Bc7+ Kf6 e5 Rd6 e4 Qc3+
k2nK3/8/2PRnNP1/Nb3RQn/Rb2B1b1/1R1Rn3/1Q2r1qp/N3N2n b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Nh6 f6 Ng8 f5 Bf8 Bf4 Qd8 h4 gxf4 g4 a5 g5 Ra6 g6 Ra7 Rh3 Ra6 Qc1 Rd6 Rh1 Rd3 Qd2 Rg3 Qd1 Rg5 hxg5 Ba6 Rh4 Bb7 Rh1 Bc8 Ke2 e5 Kf3 h5 Ke4 h4 Kd5 f3 c4 f2 b4 d6 g7 Kd7 b6 a4 b5 h3 c6+ Ke8 g6 a3 b7 a2 f7+ Ke7 c5 h2 b6 e4 c7 Kd7 f6 e3 Qe2 Nh6 g8N Nf5 Nf3 Nc6 b8R Ng3 b7 Nh5 Bg2 f1B Qb2 e2 Na3 e1N Nc2 Nd3 Nfe1 Nf2 Be4 Bb5 Rd1 a1N Rd3 Nb3 Na1 Be7 f8Q Nbd4 f7 Ne6 Qh6 Qe8 f8R Ncd8 Rg1 Nh1 Rg4 Qf7 Qe3 Qf2 Rf5 Qg2 Qg5 Bf8 Ne7 Rh7 Nc6 Re7 Na5 Re8 Ra8 Re7 b8R Re8 Ra6 Be7 Bf3 Bf8 Ra4 Re7 Ke4 d5+ Ke5 d4 Be4 Re8 Rda3 d3 Kd5 d2 Rd3 Re7 Rd6+ Ke8 c6 d1N Ke5 Ne3 Rb6 Bd7 c8N Nc7+ Re6 Ba6 Kd6 Nd1 Rff6 Nb7+ Ke5 Kd8 Rbb3 Bb5 Nb6 Re8 Kf5 Bb4 Nd5 Kc8 Bf3 Kb8 Rf8 Nd8 Rf7 Nf4 Kf6 Ka8 Rd6 Re2 Be4 Ne3 Ke7 Bg4 Rf5 Nh5 Nf6 Nce6 Ke8
1QB4n/1Nr3q1/k1QqRR2/1brq4/P1qQ1N2/1N1QK1pP/1n2N3/Nq6 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 d5 cxd5 a4 f4 a3 f6 Nc6 g3 Na5 bxa3 Nc6 a4 Nb8 a5 Ra7 Bh3 Ra6 Bf1 Ra8 f5 h6 Ba3 e6 Bc5 Bd6 Be3 Be5 Bg5 Bf4 gxf4 hxg5 Kf2 Kd7 a4 c5 d4 Kc7 h3 b5 f7 Kb7 f8N c4 f6 e5 f7 g4 d6 g5 d5 b4 f5 c3 d7 e4 d6 b3 f6 c2 Bc4 c1Q Nd2 b2 Nb3 b1Q Ne2 Rh7 Rf1 Nh6 Qd4 Nc6 Ne6 Ne5 f8N Nhf7 Ng6 Nh8 f7 Qc7 d8Q Bd7 f8Q Bb5 d7 Qd6 Bd3 Nc4 Ngf4 Nb2 Nec5+ Ka7 a6 Rc8 Qh6 Qc4 Ke3 g3 Qg6 Qa2 Rae1 g2 Na1 g4 Ncb3+ Rc5 Q8f6 g3 d8N Rc7 Nb7 g1Q+ Rf2 Kb6 a7 Ka6 Qd8 Qg2 Qb8 Qf7 Bc4 Qg7 Be6 Qb1 Bc8 Qc2 Nh5 Qc4 Rf6 Qh1 Ref1 Qg2 Re6 Qh1 Rff6 Qg2 Nhf4 Qf3+ Kd2 e3+ Ke1 Qh5 Qgd3 Qhd5 a8Q+ Kb6 Nc3 e2 Kd2 e1Q+ Kc2 Qg1 Kd2 Qb1 Nce2 Qb4+ Ke3 Qbc4 Qa5+ Kc6 Qe1 Kb6 Qh1 Ka6 Qhe4 Qd1 Qg6 Q1h1 Qe8 Qb1 Qc6+
2r2n1k/3qbR1b/1RQ2p1Q/1P1N1QbK/4R3/3B1NQP/2b4q/1r1Rb1R1 b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 a4 h5 axb5 Rh6 gxh5 Rh7 d6 Rh8 e4 Be6 f4 Bd7 d4 Nc6 d5 Nce7 f5 Nc6 Be3 Bc8 Bd4 exd4 e5 Nce7 Qe2 Ng6 Qg4 Nf4 Qd1 Ne6 fxe6 Bb7 Na3 Ba6 Nb1 Bc8 b6 a5 Kf2 c5 Kg3 g5 Kg4 d3 b4 f6 b5 d2 d7+ Ke7 h6 a4 h3 c4 h7 c3 b7 a3 b8Q c2 Nf3 c1B Kh5 a2 Nc3 g4 Qc2 d1B Qb1 Qc7 d8R g3 Rd6 g2 Rb6 g1Q d6+ Ke8 e7 Kf7 e8Q+ Kg7 e6 Qh2 d7 Ne7 d8Q Ng6 e7 Bf5 Rg1 Be3 Qbd3 Bc2 Rd1 a1B Qc6 Ra7 Qde8 Qd7 Nd5 Bc3 Qg3 Ra1 Qeb8 Rc1 e8R Rb1 Qbf4 Be1 Be2 Rg8 h8R Be4 Re5 Be7 Qd2 Rf8 Bd3 Rc8 Rf8 Kh7 Rf7+ Kh8 Qfg4 Nf8 Qc1 Bf5 Re4 Bh7 Qf5 Bh6 Qd2 Be3 Qdf2 Bc1 Qe3 Bcd2 Qh6 Be3 Re5 Bg5 Re4
2N1bB2/4p1BK/r1qnP3/3n1Q2/1P1b1bB1/1Nk1Nq1N/1bb1B3/NR1Q4 b - - 0 1 legal: proof: c4 a5 f4 g5 fxg5 d5 cxd5 b5 a3 b4 axb4 Bd7 b3 Bc8 g4 h5 g6 a4 g5 a3 Bb2 Nc6 Bc1 Ra4 bxa4 Bg7 Ra2 Bh6 Rc2 Bf8 Rc4 Nb8 Rg4 hxg4 Kf2 Kd7 Kg3 Kd6 Kf4 c5 h4 f5 e4 a2 d4 a1B g7 g3 g6 g2 Kg5 f4 e5+ Kd7 d6 Kc6 d5+ Kb6 d7 c4 d6 c3 a5+ Kc6 a6 f3 a7 f2 a8N c2 h5 Qb6 d8N+ Kd7 h6 Qa5 h7 Bd4 Ne6 Kc6 d7 Kd5 d8Q+ Bd7 Be2 f1B Qc8 Ke4 Nh3 g1B Na3 Bb5 Nc5+ Kd5 Nb3 Bh2 Qf5 Nf6 g8N Nbd7 g7 Nb6 Kg6 Ne8 Bh6 c1Q Nc2 Qaa3 Nca1 Bf4 Rg1 Bd3 Nf6+ Kc4 g8B+ Nd5 Be6 Kc3 Nb6 Bc2 Ng4 Nd6 Ne3 Bg7 Nc8 Rf8 h8B Rf6+ Kh7 Qa8 Bg4 Bb5 Be2 Be8 Bd7 Re6 Rh1 Bf6 Bf8 Qb7 Bhg7 Qc6 Qg1 Qf1 Qg4 Qf3 Rb1 Bh4 Qg1 Be1 Qg4 Bd2 Qg1 Bc1 Qd1 Ba3 Qe4 Rf6 Bg4 Bb2 Qf5 Qa4 Nf2 Nb5 Nc1 Ra6 e6 Nd6 Ncb3 Qc6 Nh3
4Q2B/1Q1b4/1b1KQ2k/nr2N3/8/1qqnNPq1/2BpQqP1/Bb2BQR1 b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 d4 g4 dxc5 g3 f3 Bb7 Qd2 Ba6 Qd1 Bc8 h4 Qb6 b4 Qf6 Kd2 Qb2 Ra6 Qe5 Re6 Qc7 Re2 Qd8 Rf2 gxf2 Nc3 a5 Nb1 Ra6 Bc4 Rg6 Bf1 Rg5 hxg5 Bg7 Ne2 Bh6 Ng1 Bf8 Kc3 Kf7 Kc4 Kg7 Kd5 h5 c4 e5 b6 h4 b7 d6 b5 e4 g6 h3 c6 e3 c7 h2 c5 a4 c6 e2 b6 e1Q Na3 Rh4 f6+ Kh8 f7 Kg7 Nc2 a3 Bb2+ Kh6 g7 a2 Ne2 a1Q Ne3 Qb1 Nc1 Rb4 Rg1 h1Q Ba1 Qh2 Bd3 f1B Qe2 Bd7 c8Q Qhg3 c7 Qf6 Qe8 Qfc3 c8Q Nc6 b8Q Na5 b7 Qef2 Qc4 Qbb3 Bc2 Rb6 Nd3 Rb5+ Nc5 Be7 f8B Bd8 Qa7 Bc7 b8B Bb6 Qb7 Ne7+ Ke4 Qa4 Nd3 Nec6 Ne5 Nb4 Be7 Nd3 g8Q Qa2 Bf6 Qab3 Qge6 d5+ Kf5 d4 Bh8+ Kh7 Kf6 Kh6 Ba7 Nb2 Bb8 d3 Bc7 d2 Ke7+ Qg6 Kd6 Nd3 Qd1 Be2 Qf1 Bd1 Bd8 Be2 Bdf6 Qgg3 Qce4 Nc1 Q4c4 Bd3 Bh4+ Bg6 Qce2 Nd3 Qed5 Bh7 Qde6+ Qg6 Qc7 Qe1 Be7 Nb2 Qb7 Qh4 Bef6 Qg8 Bd1 Bb1 Bc2 Nd3 Qfd1 Qe1 Bh4+ Qg6 Qf1 Qe2 Be1 Qf2 Bf6 Qg7 Qde2 Qgg3 Bh8+
qbnq1B2/3q4/Qn2QP1K/Q2p4/2R1rN1B/2B1nk2/P7/nRr1BBQ1 b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Kd8 f7 Kc7 bxa3 Kc6 a4 Qc7 a5 Qd8 f5 b6 f6 Ba6 Nc3 Bd3 Ne4 h5 Nf2 Bf5 gxf5 Ra6 Ng4 hxg4 Bh6 Ra7 Bc1 Ra8 Kf2 e5 Kg3 g5 h4 b5 c4 b4 a6 b3 a7 b2 h5 b1N h6 e4 h7 e3 Qb3 e2 Qb4 e1N Bd2 Na3 Rb1 Ng2 Ne2 Ne3 Rh4 Bd6+ Nf4 Ne7 f8B Nac2 f7 Na1 Be1 Nc8 Be7 Re8 f8B Bc7 Bf6 Re4 h8B d5 Qb3 Nd7 Qd1 Bb8 Qc1 Kc7 c6 Ndb6 c5 Qd7 Bfc3 Qd8 Bhf6 Qd7 Kf2 g3+ Kf3 g2 Kg3 g1Q+ Kh3 Ng2 Kg4 Ne3+ Kh5 g4 Kh6 g3 Bg5 g2 f6 Qd8 Rg4 Qh2+ Bgh4 g1Q Qd1 Qd7 Qd4 Qe2 Qd1 Qa6 Qd4 Kd8 c7+ Ke8 c6 Kf7 Qd1 Qf2 Qc1 Qb2 Qd1 Qba3 Qd4 Qae7 Qc5 Qed8 Qd4 Nd6 c8Q Qa5 Qb7 Ndc8 c7 Qaa4 Qa6 Qac6 Nh3 Ke6 Nf4+ Kf5 Qc5 Rd4 Qca5 Ke4 Qc5 Kf3 Qaa5 Nd6 c8Q Re4 Qca6 Ndc8 Qe7 Bd6 Qe6 Rb8 Qc5 Qa8 Qca5 Rb7 Qc5 Rc7 Qaa5 Qb7 a8Q Be5 Q8a6 Qa8 Qd4 Rc4 Qdc5 Bb8 Qd4 Nec2 Qg1 Ne3 Be5 Rc1 B5c3 Ra4 Ne2 Rb4 Rc4 Ra4 Nf4 Rb4 Rc6 Re4 Rc4
1N4r1/r2q2nr/R4pKR/1q2P1NB/P3Q1Rq/Q4R2/N1N5/1Rb1knq1 b - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 a5 cxd5 h6 b4 Qd7 bxa5 Ra7 g4 Qd8 g5 Be6 g6 Ra8 Ba3 Kd7 Bc5 f6 Be3 Bf7 Bg5 hxg5 gxf7 Qc8 Na3 Qe8 Nb1 Qd8 Kf2 c5 Kf3 b5 Ke4 b4 Kf5 c4 h4 b3 d4 c3 a4 b2 e4 g4 h5 g5 a6 c2 e6+ Kd6 e7 c1Q e8N+ Ke7 a7 g3 e5 g4 d6+ Kd7 h6 Kc6 h7 Kd5 d7 g2 Qc2 g3 Nh3 g1R Ng5 g2 Nc3+ Kc6 d5+ Kc5 d6 Kd4 Rh6 Ke3 Qe4+ Kd2 Kg6 b1Q Ng7 Qd1 Na2 Qbb3 Nf5 Qg4 Rb1 Qb5 Be2 Qh4 Ne3 Nc6 Bh5 Qc7 d8Q Nd4 d7 Ba3 f8N Ne6 Qe7 Bc1 d8R+ Ke1 Nd7 Ng7 Nb8 Qcd7 Qa3 Rh1 Rc8 g1Q Rc2 Rh3 Rg2 Rh1 Rg4 Ne7+ Kf7 Nd5+ Kg6 Re8 h8R Re7 Rc8 Re8 Rc2 Rg8 Rf2 Rh2 Nc4+ Ne3 Rf5 Kd1 Rf3 Nf1 Ne3+ Ke1 Nc6 Rab8 a8R Rb7 Ra6 Ra7 Nb8 Rh8 Qd5 Rh7 Qc4 Rc2 Qd5 Rc8 Qe4 Rg8 Nc2+
RN3b1q/1P3BNk/B1n2N1B/1KN4P/2N1qrQb/q7/B2Q3p/2rb1b2 b - - 0 1 illegal: No proof kernel
1r6/1P3bRQ/RB4Q1/1QP1nNb1/2R1R2R/q7/rbpb1k1K/r1q1QB2 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 f5 exf5 h5 gxh5 Rh7 bxc5 Rh6 a4 Rh8 c4 d5 c6 b4 c5 Na6 Na3 Nc7 Nc4 Nb5 axb5 dxc4 f4 Kf7 Kf2 Kf6 Kg2 g5 d4 a5 h4 e5 c7 a4 b6 c3 d5 g4 d6 a3 b7 b3 d7 b2 h6 b1R h7 a2 h5 c2 h6 e4 Ne2 e3 Rg1 g3 Nd4 e2 Bd2 e1Q Ba5 Qe3 Bb6 Qde8 d8R Qb5 Re8 Qd7 Re4 Rb2 Kh1 g2+ Kh2 Kf7 f6 Kg6 f5+ Kg5 f7 Qa4 f6 Qc1 Nf5 Qa3 Rc4 Be7 f8R Be6 c8Q Bf7 Qc6 Bd8 Re4 Ne7 Qb5 Ng6 Rc4 Ra5 Re8 Ne5 Re7 Rf8 h8R Rg8 h7 Ra8 Nd4 Kf4 Re8 Ke3 Nf5+ Kf2 Re7 Be6 f7 Ra7 f8Q Bf7 Re6 Bg5 Qh6 Rb8 Qg6 Bd2 Rh1 Rb1 Rg8 Ra5 h8Q Rb2 Rb1 a1B Qhh7 Ra2 Rbb4 Bb2 Rg7 Bg5 Bd3 Ra7 Re1 Raa8 Ree4 Bd2 Bf1 g1B+ Kh1 Bh2 Ra4 Bhf4 Ra6 Bh6 Rh4 Bhg5 Kh2 Nd3 Re3 Ne5 Ree4 Ra1 Raa4 Qc3 Rab4 R8a3 Ra4 R3a2 Ra6 Qa3 Qe1+
n1nn3n/2N5/3B1b2/2Q1nK1b/Np2Nb1P/NBr1B2P/RB5r/5NQk b - - 0 1 legal: proof: h4 a5 a4 h5 c4 f5 e4 d5 cxd5 Kd7 exf5 Ke8 b4 Qd7 bxa5 Qd6 Ra3 Qf4 Rg3 Qf3 Rg4 Qh3 gxh3 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 g5 d4 b5 f4 c5 a6 e5 a7 g3 a5 c4 a6 c3 f6 g4 f5 b4 f7 c2 f6 g2 Ba3 c1B Nd2 g3 Qg4 Be7 f8B Nc6 f7 Nd8 Qd1 Bg4 Bb2 Bh5 Nb1 Bf4 Kf5 e4 Nf3 g1N Nh2 g2 Na3 e3 Bc4 e2 Nf1 e1N Bb3 Ngf3 Rh2 g1N Qc1 Rc8 a8N Rc2 a7 Ne5 Nb6 Nc4 a8N Ne2 Nc7 Nd3 Na4 Nb6 Qe3 Rc3 Qg1 Na8 Bh6 Ne5 f8Q Rh7 Rf2 Rg7 Rg2 Bd2 Be3 Nf4 Rf2 Nfg6 Re2 Kd7 d6 Kc6 d7 Nh8 d5+ Kd6 Rf2 Rg2 Re2 Rh2 Rg2 Ndc6 d8N Bc1 Nde6 Nd8 Nec5 Bd2 Qg7 Bf6 Qg5 Bc1 Kf4 Ne7 Ne4+ Kd7 d6 Kc6 d7 Nc8 Kf5 Bd2 Bc5 Bf4 Bd6 Nc4 Ne8 Kd5 Rf2 Kd4 Nc7 Ne5 Rc2+ Kd3 Qc5 Nhf7 Qgg1 Nh8 Rc1 Ke2 Ra1 Kf3 Ra2 Nb7 Qge3+ Kg2 d8B Kh1 Qe1 Bg7 Bg5 Nd8 Qb1 Bf6 Qd1 Bg3 Be3 Bf4 Qe1 Bf3 Qg3 Bh5 Qg1#
Rkn5/q2Rr1bb/b6b/1N2P3/KB1N3Q/1Rb2Q1R/N1P1pb2/r1NR4 b - - 0 1 illegal: No possible last move, all moves rejected
n1K1N1k1/p1nQ1Q2/3RbrrP/1N3r1Q/b2NrB2/bP2QN2/R1N3r1/8 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Qf6 Bh3 Qf5 gxf5 Rh6 Bg4 hxg4 Ra2 Rh3 Ra1 Rh8 Kf2 Kf7 e4 c5 d4 g5 h4 g3+ Kf3 g2 Kg4 c4 h5 f3 h6 f2 e6+ Kf6 d6 f1B b6 c3 d5 c2 d7 Na6 d8Q+ Ne7 b3 Rh7 b7 Rh8 b8Q Nb4 d6 Bc4 d7 B8a6 Qf4 Bc8 Ra2 Rg8 Na3 Na6 Qg3 Rg6 Bf4 c1R Nc2 Rg8 Qc7 Rh8 d8N Rb8 Qgd3 Rb5 Nc6 Ng6 e7 Kf7 e5 Bd7 Rh5 Rh7 e6+ Kg8 f6 Rf7 N6d4 Ne5+ Kf5 g4 Q3d2 g3 Qg4+ Rg7 Ngf3 g1R Qg5 Rce1 f7+ Kh7 Qd3 g2 Qh4 Rg3 Rg5 Rd5 Rg6 Ba4 Qh5 Ra5 Qd8 Nc7 e8Q Rc5 Nb5 Nd7+ Qd5 Nb6 e7 Nba8 Qe5 Nd5 Ke6 Ndc7+ Kd7 Rc6 Qe2 Rg5 Kc8 Rf5 Qdd7 Ra6 Qf2 Re4 Qe3 Kh8 Qed8 Bd5 e8N Ba3 f8N Rc6 Re6 Kg8 Q8e7 Rd6 Re5 Rdf6 Ne6 Bc4 Ned4 Be6 Qf2 Rb1 Qd2 g1R Rd5 Rgg6 Rd6 Rbg1 Qe3 R1g2 Qf7+
2rQ2b1/R2NQQ2/r3Q2P/b1br1n2/1pb3RR/1rQ1P3/n3NR2/B3K1k1 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 c4 d5 cxd5 f5 b4 f4 bxa5 Qd7 Bh3 Qf5 gxf5 Rh7 Bg4 hxg4 Kf2 Rh3 Ke1 Rh8 d4 Kf7 h4 b5 a4 c5 d6 g5 f6 Kg6 e6 Kh5 e3 c4 d5 c3 d7 c2 d8Q f3 d6 b4 d7 g3 f7 Kg4 e7 g2 e8Q Kg3 a6 g4 h5 Nf6 a5 Nc6 h6 Nd4 a7 Bc5 f8R Ne4 a6 Nc3 Qd3 Na2 Qde7 Nf5 d8Q Be6 Nd2 Bg8 Bb2 c1B Bf6 Bb2 Nb3 Be5 Qc3 Bc7 Rh4 Ba5 Q8f7 Rc8 a8Q f2+ Kd1 f1B a7 Kf2 Qc6 g3 a8R Ba6 Ne2 Bc4 Ra7 g1R+ Kd2 g2 Ng3 Rh7 Qce6 Rb1 Bh8 g1R Bg7 Bcb6 Nc5 Rb3 Nd7 Bc5 Rg4 Rg2 Rh1 Rh8 Rhh4 Kg1+ Ke1 Rd2 Qc2 Rc6 Ba1 Ra6 Qc3 Rd5 Qfe8 Nd4 Rf2 Nf5 Q8f7 Bh7 Qc7 Rc8 Qcd8 Bg8 Ne2#
nQq2q1q/r1B1n3/4krRR/2Q2nq1/NQKp4/3r2Q1/3P2PN/3RQR2 b - - 0 1 legal: proof: e4 b5 b4 f5 exf5 g6 a4 Ba6 axb5 Bh6 b6 Bc8 c3 Be3 b5 Bc5 f4 Bd4 h3 Bb7 f6 Kf7 f5 Bf3 Bd3 Bg4 hxg4 Bc5 Bc2 Bb4 cxb4 Kf8 f7 Kg7 Kf2 Kf6 Ke1 Ke5 f6 Kd6 Bf5 gxf5 Ke2 e5 Kd3 c5 f8R a5 f7 h5 b7 a4 g5 h4 b6 a3 b5 h3 g6 h2 g7 f4 Nc3 f3 Nge2 c4+ Kc2 a2 Nf4 f2 Nh3 f1R Qh5 e4 Qg6+ Rf6 Ng5 e3 Nf3 e2 Na4 e1Q Kc3 Ke6 Qb1 d5 Ba3 Qg3 Bd6 Nd7 b8Q Ra7 b7 Nb6 Bc7 Na8 b6 Ne7 g8R Qg5 Rg6 Rh3 Qf1 Rg3 Rd1 a1Q+ Kb4 Qae5 Qe1 c3 Rf1 h1N Nh2 c2 Rh8 c1Q f8Q d4 Rhh6 Qa3+ Kc4 Rd3 Qc8+ Qd7 b8Q Ng3 b7 Ngf5 Qg7 Qd6 Qcf8 Qe8 Qc8+ Qdd7 b8Q Qf7 Qcb7 Qc8 Qb4 Qg8 Qe8 Qh8 Qeb5 Qhf8 Q5c5 Qh8 Qg3 Qef4 Qf8 Qd6 Qe8 Qdd8 Qec6+ Qd6 Qcf3 Qdd8 Qff2 Qdf8 Qe1+
R2nNR1B/2Q1R1b1/2pp1nkR/6P1/P1B5/1R2K2Q/bb1r2qB/4B1rq b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Kf7 c5 Ra7 c6 Ke8 c7 Ra8 c4 d6 c5 Kd7 c6+ Ke8 Nc3 Bg7 Nce2 Be6 c8R Bc4 c7 Ba6 Nd4 Bf8 Nc6 bxc6 Kd2 Kf7 g4 e5 a4 h5 f4 e4 f6 h4 f5 h3 g6+ Ke8 g5 h2 g7 Kf7 Qb3+ Bc4 a6 Qd7 a7 Ne7 g8R Qd8 Ne2 Nd7 Nc3 Ng6 Ra3 Nde5 Rg7+ Ke8 f7+ Ke7 Nb5 Nf4 Ke3 Qe8 Bd2 Rb8 a8R Nh5 Be1 Nf6 Qc3 Ba2 Rb3 Rh4 Bc4 Rg4 Rd8 Rb7 c8Q Rg1 Nc7 Rb8 Rh7 Bg7 Qa5 Qd7 Rf8 Rb5 Qa7 Rd5 Ne8 Rd2 Qb6 Qe6 Qa5 Qd5 Qac7+ Nfd7 f6+ Ke6 Rg8 Kf5 f8B Kg6 f7 Nf6 Be7 Rb2 f8B Nf7 Qg4 Rd2 Qh3 Nd8 Rgh8 Rgg2 Rf1 h1Q Rf2 Rg1 Rf5 Nh5 Bf6 Qg2 Bb2 Nf6 Be5 Qh1 Bh2 Qg2 Kf4 e3 Be7 e2 Ke3 Qh1 Bf8 Qdg2 Re5 Nh5 Re7 Bb2 Bg7 Nf6 Bh4 e1B Rf8 Bg3 Bh8 Bge5 Rh5 Nd7 B4g3 Bg7 Be1 Nf6 Rh6+
B2q1q2/B3Bb1n/K1Q2N1N/5PNB/1N5n/1r3p2/1BRkPnp1/1qb2Q2 b - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 h5 a4 f5 axb5 d5 g4 a5 c4 f4 cxd5 Ra6 Ra3 Rb6 Rg3 Rf6 Rg2 Rf5 gxf5 Nd7 Rg6 Nb8 Rg4 hxg4 d4 Kd7 Kd2 c5 Kd3 g5 Kc4 a4 h4 a3 h5 a2 e6+ Kd6 h6 a1Q b6 g3 Kb5 g2 h7 g4 b7 c4 e7 c3 e8B c2 Nh3 g1Q Bb2 c1N Nd2 g3 Bh5 Nh6 Ng5 Qf2 Bg2 Qe7 Qf1 Be6 Nde4+ Kd7 d6 Nb3 d5 Nd2 Rh3 Rg8 h8N Qd8 Nhf7 Ng4 Nh6 Bf7 Bf3 g2 Rh4 Na6 b8B Nf6 Ba7 Nh7 Rg4 Qb1 Nf6+ Kc8 d7+ Kb7 Rh4 Nc5 d6+ Nce4 Rh3 Bg7 Rh4 Qf8 d8B Qd4 d7 Bh8 Ka5 Kc6 b5+ Kd6 b6 Ke5 b7 Nf2 Bc6 Nf3 b8N Rg6 Rg4 Nh4 Na6 f3 Be7 Rg8 d8Q Rg6 Rg3 Kf4 Qd7 Ke3 Rg4 Kd2 Nb4 Qdd3 Qc7 Qdd8 Rc4 Rg8 Ka6 Bg7 Nhg4 Bh6 Ba8 Rg7 Qc6 Rg6 Ne8 Re6 Nef6 Re3 Nh3 Bf4 Nh6 Rb3 Ng5 Be5 Ba1 Bb2 Rc5 Bc1 Bb2 Qb8 Rc3 Qbd8 Rc2+
1b3qkB/N4n1P/Q1B4B/1n4R1/1Q1B1q2/2Q2Qpr/pN1P1BK1/2r1q1n1 b - - 0 1 illegal: No possible last move, all moves rejected
1N1RK3/P1Qrb2N/6pr/3QP1N1/Qb4BN/1r2Rq2/1n4qp/1kQ2b1Q b - - 0 1 legal: proof: d4 a5 c4 e5 b4 f5 bxa5 d5 cxd5 f4 d6 f3 gxf3 Bg4 f4 Be6 f5 Bc8 h4 g6 d5 Nd7 h5 Nc5 h6 Ne6 Be3 Ng7 Bd4 exd4 hxg7 Qh4 Kd2 Qe7 Ke1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 Ke4 f4 h5 a4 c5 f6 c4 d7 b6 Kc6 c3 a6 b5 f5 b4 f7 c2 a7 c1B d6 d3 a5 b3 a6 d2 f6 b2 Ra3 h4 Bh3 Nh6 g8Q Be7 f8N Qa5 d8N Nf5 d7 Ng7 f7 Qb4 Nc3+ Ke3 Nh7 b1Q f8Q Q1b2 Qa4 d1R Nf3 Ne6 Bg4 h3 Qh6+ Qf4 Ne4+ Rd3 Nh4 h2 Rd1 Bd2 Neg5 Rb8 a8Q Rbb3 a7 Nc5 Qd5 Qf3 Kc7 Qa2 Nc6 Ba6 d8Q Bb4 Nb8 Rd2 Kc6 Nd3 Kd7 Nb2 Qc7 Rd4 Qf8 Bd3 Ke8 Bc4 Qfg8 Rdd3 Qdc6 Rd7 Rd2 Bd3 Qc1 Kd4 e4 Ke3 e5 Bf1 Nf8 Rh5 Nfh7 Rh6 Re2+ Kd3 Q8c6 Qf2 Qh1 Qf3 Re4 Qb1 Rf4 Qc2 Rf8 Qcg2 Qe1 Bbc5 Qd5+ Kc2 Qed2+ Kb1 Qdf4 Rb5 Re3 Rb3 Qfc4 Ba3 Qc1+ Ka2 Rg8 Qe4 Kf7 Qef3+ Qf4 Bad6 Rd8 Ba3 Ke8 Bac5 Qc3 Kb1 Qa4 Bb4 Qc1#
QN1RK3/Nkr1p3/np1BnN1N/2Rb4/1N3P1Q/r1nP4/2Q3q1/Q5rr b - - 0 1 illegal: No possible last move
BNBn4/kpQK4/6B1/4B1r1/Q3brP1/1bp2nQ1/RQb1b1BP/1N4b1 b - - 0 1 illegal: No proof kernel
n1bnB2k/2NQ1p1r/1R2r3/PP3Q2/1Rr2Bn1/bKB2n1Q/3Q1Qp1/B7 b - - 0 1 illegal: No possible last move, all moves rejected
2k1BrrB/bp1b4/1B2R1B1/P2rr1QR/8/1nK2pQ1/1QQP1nN1/nB6 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 c4 d5 cxd5 f4 b4 h6 bxa5 Qe7 Nc3 Qf7 Ne4 Qf5 Ng5 hxg5 gxf5 g4 e4 Kd8 a4 g5 h4 c5 f6 g3 e6 g4 f7 f3 d6 c4 e5 g2 d7 c3 h5 c2 e7+ Kc7 e8B g3 h6 Ne7 e6 Nd5 d8B+ Kd6 e7 Nf4 a6 Nd5 h7 Bd7 a5 Nb6 a7 Bg7 f8Q Be5 Qf5 Nc8 Bd3 Bd4 Ne2 Rf8 h8Q Na6 Bb6 Nb4 Bb2 c1N Rh5 Nb3 Qc2 Be3 Nf4 g1R+ Bf1 g2 Bg6 Rh1 e8B g1R Kd1 Rg5 Ng2 Rb8 Qh3 Rd5 a8Q Ke7 B2d4 Nd6 Qg3 Ne4 Qg8 Rh3 Bd3 Rh4 Qb2 Nc2 Bh8 Rh3 Ra4 Nca1 Bb1 Rd8 Qc8 Nf2+ Ke1 Rh4 Qcc2 Re4 Rb4 Re6 Re4 Ree5 Qg7+ Kd6 Qh6 Bd4 Qhg5 Ra8 Bd8 Ba7 Bb6 Nd3+ Kd1 Rb8 Bc5+ Kc7 Re1 Kc8 Bb6+ Nbc5 Re2 Nf2+ Kc1 Ref5 Re6 Rfe5 Qd4 Rg8 Kb2 Rf8 Kc3 Ncb3 Qb4 Rg8 Qa3 Ra8 Bef7 Kb8 Be3 Kc7 Qab2 Raf8 Bb6+ Kc8 Be8
2qBk1nq/B3BN2/2n2r2/3B1Q2/qp2R1n1/P2p4/RK1PRBQR/1b2n3 b - - 0 1 legal: proof: c4 a5 f4 b5 b4 f5 bxa5 b4 e4 h6 exf5 e6 g4 Bc5 g5 Be7 Nc3 Bf6 gxf6 h5 Nd5 Ra6 Ne3 Rb6 Ng4 Rb5 cxb5 hxg4 h4 c5 b6 g5 a6 d5 h5 c4 b7 e5 a3 d4 h6 e4 h7 c3 a7 g3 a8R g4 f7+ Ke7 f8Q+ Kd7 f6 c2 f5 d3 f7 g2 f6 e3 Qf3 g3 Nh3 g1N Bb2 c1N Kd1 g2 Ra2 Nb3 Rh2 Qe7 Ng5 Qe8 Bd4 Na1 Kc1 e2 Kb2 e1Q Bf2 Nc6 b8B Nh3 Bba7 g1Q Bg2 Q1e6 Qg4 Qf5 Bd5 Nc2 Qg2 Ne1 Qc5 Qf1 f8R Qh1 f7 Ba6 Qa5 Bc4 Qb5 Qc8 Re8 Qa6 f8B Qa4 Nf7 Qe6 Bfe3 Nf2 Be7 Ng4 Bf2 Bb3 Bd8 Bc2 Rb8 Qf5 Re4 Bb1 Qc5 Qe6 Rb7+ Ke8 Re7+ Kf8 Qa5 Qd7 R7e5 Qc8 Be7+ Ke8 Re2 N8h6 R5e4 Rf8 h8B Ng8 Qc5 Nf3 Bhf6 Ne1 Ne5 Rf7 Bd8 Rf8 Bfe7 Rf6 Nf7 Qf1 Qg3 Qh3 Qg2 Qh8 Qe3 Qaa6 Qf4 Qa4 Qf5
1qB1B3/PQ2k2p/NbKB4/b3p1nN/n4qbP/4QNB1/3R2b1/bN1N4 b - - 0 1 legal: proof: d4 g5 c4 b5 b4 a5 bxa5 f5 e4 Kf7 f4 d5 cxd5 Qd6 g4 Kg7 a4 Kf6 e5+ Kf7 e6+ Kg6 Ra2 Ba6 Re2 Qb6 d6 Bh6 d5 Nf6 Re5 Nh5 Re4 fxe4 f5+ Kf6 Ke2 Rd8 Ke1 Rd7 exd7 Qb7 Ke2 Qc8 Kf2 Kf7 Ke1 Qd8 f6 Bc8 Qb3 Kg6 Qd1 Ra6 Nf3 Rc6 f7 Rc2 Ng1 Rf2 Nd2 Rf4 Nb1 Rf5 gxf5+ Kf6 Kf2 e5 Ke3 c5 f8N b4 h4 b3 a6 b2 a7 c4 a8B c3 a5 c2 a6 Ng3 a7 Qa5 d8N Na6 d7 Qa1 d6 Nc7 Bc6 Qa2 Qe2 Qc4 Nde6 g4+ Nf4 Bg7 d8B+ Kf7 f6 Qa2 d7 Qc4 Nd3 Bb7 Ng6 Bf8 Ngf4 Qb5 Nf2 Bb4 Rh2 Na6 Nf3 Ba5 Nd1 Nc5 Bh3 Na4 Bc7 Kf8 f7 Ke7 Bd2 c1Q d8N Bc8 Nh5 Qb8 Be8 Bd7 Na3 b1B Ne6 Ba2 Qb5 Bd5 Qb7 Bc3 Nb1 Ba1 Nc5 B5c6 Kf2 e3+ Kg2 e2 Na6 e1B Bf4 Ne4 Bg3 Ng5 f8Q+ Ke6 Qc5 Ba5 Qcb6 Qf4 Qe3 Ke7 Kf2 Bf5 Ke2 Bc8 Kd3 Be4+ Kc4 Bd7 Be1 g3 Rd2 g2 Bg3 Bg4 Kb5 g1B Rd4 Bd3+ Kc6 Bf1 Rd2 Bg2 Ng7 Bh5 Bc8 Bg4 Nh5 Bf2 Qc3 Bd4 Qe3 Bdb6 Bd6+
2n2Nq1/1Qr3b1/N3PQ1k/1QP2r1N/5B1p/2NBnK2/p3p1QN/4b1qR b - - 0 1 illegal: No possible last move
2K1NqQ1/Qp1P4/2N1ppRr/3kBrN1/bB3b1n/PN4BB/8/3qn1N1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 h4 bxa5 h3 f6 Nc6 f7+ Kd7 gxh3 Nf6 h4 Nb8 h5 Ng8 f4 e6 f5 Ra6 f6 Bd6 f8B Ra7 f7 Ra8 a3 Nh6 Ra2 Bf4 Rb2 Bd6 Rb4 Ng8 Rf4 Be7 Rf5 Bd6 Rf6 gxf6 Kf2 c5 Ke3 c4 Kd4 c3 h4 c2 a6 Qe7 h6 Bg3 h5 Kd6 a7 Bf4 h7 Nh6 Bh3 Bg5 Bb2 c1Q Qa4 Ng8 h6 Kc7 d6+ Kb6 d7 Qc7 d8N Qc1 Nc6 Qd8+ Bd6 Qf1 f8B Nd7 Bg3 Qa6 Bb4 Rb8 a8Q Qf1 Q4a7+ Kb5 d3 Qg2 Nd2 Qc7 Nb3 Bd2 Rh2 Qe2 Rg2 Ne7 Ba1 Rd8 h8N Ng6 h7 Bf4 Nf7 Qd2 h8N Nh4 Ng5 Qd1 Nhf7 Rg8 Bb2 Ne5 Ba1 Qa5 Bb2 Bd7 Nd6+ Ka4 Ne8 Nef3+ Kc4 Ne1 d4 Rd8 d5 Rh8 d6 Rh6 Q8b8 Qa6+ Kc5 Rc8 Qb6 Qa8 Qd8 Rc7 Kb6 Rc8 Be5 Rc7 Na7 Rc5 Nc6 Rd5 Kc7 Kb5 Qa7 Kc4 Ng7 Rb5 Qg8 Qf8 Ne8 Rd5 Nb8 Ba4 d7 Rc5+ Nc6 Kd5 Kc8 Rc3 Rc2 Rf3 Rc4 Bd2 Rg4 Rf5 Nh7 Bc1 Rg6 Bf4 Ng5
3R1q2/1p1b4/1r1nRQ1N/7N/r1pKQ1N1/bp1P1rBP/NN1Q2Q1/5bk1 b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 d5 c4 Rh6 cxd5 Rh8 gxh5 a6 b4 Qe7 b5 Qc5 b6 Qb5 Bh3 Qd7 Be6 Qd8 Bd7+ Ke7 Bb5 axb5 Qa4 Kd7 Qd1 Ke8 a4 c6 a5 Qg5 a6 Be6 a7 Qd8 Nc3 Qf6 Qc2 Na6 Nb1 Rd8 Qd1 Nc7 bxc7 Qe7 c8N Qf6 Nb6 Rd7 Na8 Qd8 Kf2 Ke7 Ke3 g5 h3 f5 d3 g4 d6+ Kf7 h6 Kg6 h7 Kh5 Nf3 g3 Nc3 f4+ Kd4 g2 e4 g1R Na2 b4 Qe2 b3 Nh2+ Kh4 Ng4 Kg3 Nb6 f3 a8Q f2 Na4 Kg2 Qa5 Qh4 Bf4 Qg3 Nb2 Ne7 Qad2 Rg8 h8N Bf7 e6 Be8 e5 Rg6 Nf7 Rg5 Nfh6 Qh4 Bg3 Nc8 e7 Rf1 e6 Rg6 Re1 Rc7 d7 Nd6 d8Q Bd7 e8N Qe7 Nef6 Qf7 Rh2+ Kg1 e7 Rc8 e8Q Ra8 Q8e4 c5+ Ke3 c4 Nh5 Ra4 Qf6 Be7 Kd4 Qf8 Ra1 Nc8 Re1 Ba3 Rg2+ Kh1 Qff5 Rb6 Qf6 Nd6 Qb4 Rg1 Qbd2 f1B Rf2+ Rg2 Rf5 Kg1 Rd5 Nc8 Rd6 Rf2 Re6 Nd6 Re8 Qg8 Rd8 Qf8 Qc6 Rg2 Qef3 Nc8 Re6 Rf2 Qfe2 Nd6 Qce4 Rf3 Qg2+
1K1QRN2/PQ1N3b/Q2n4/3kB3/P1p3N1/3NRr1Q/Nn4pp/qr2rn2 b - - 0 1 legal: proof: c4 a5 b4 d5 bxa5 f5 cxd5 f4 d6 e6 d7+ Kf7 g3 Nh6 gxf4 Ng8 f5 Ke7 h4 g5 d4 g4 d5 Bg7 d6+ Kf7 Bg2 Bf6 Bd5 Bg5 hxg5 exd5 Kd2 c5 Ke3 h5 Kf4 b5 Ke5 g3 f4 d4 a4 b4 e4 h4 a6 h3 f6 h2 a7 c4 f5 b3 g6+ Kf8 g7+ Kf7 Nc3 g2 Nge2 b2 Re1 b1N Ra3 d3 Nf4 d2 Na2 Rh5 Qf3 d1R Rae3 Na3 Qh3 Nb1 Nd3 Nd2 Bb2 Qb6 d8Q Nb1 d7 Ba6 Qc7 Nd2 d8Q+ Ne7 g8N Rh4 Qb7 Nc6+ Kd6 Rf4 e5 Qd4+ Kc7 Nb4 Qd6 Bb5 Qda6 Rf3 Bc3 Re8 e6+ Kf8 f7 Bd7 Nh6 Nc8 Kb8 Ke7 f8N Rb1 Ba1 Nf1 Ng4 Qg7 Be5 Nd6+ Kc7 Bc8 Nd7 Qf6 Kb8 Qh8 Ndc1 Nd3 R1e2 Nb2 f6+ Kd8 f7 Ke7 Nd3 Qf6 Qc7 Bb7+ Qc8 Be4 Re1 Bh7 R1e2 Rg8 f8N Re1 Qcb7 Rg5 Bg3 Rb5 Bf4 Qc3 Be5 Qc1 Qbb6 Qa1 Qbb7 Ke8 e7 Kf7 Ng6 Ke6 e8Q+ Kf5 Qd8 Ke6 Qbb6 Kd5 Ngf8 Nd1 Bg3 Rb1 Qbb7+ Kd4 Bf4 Nb2 Re8 Nd1 R2e3 Nb2 Qbc7 Kd5 Be5 Bf5 Qcb6 Bh7 Qbb7+
3B3R/2RR2q1/Bb4n1/1n3K1p/2p2pB1/qb1P3Q/PN5Q/1RrBk1qR b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 g5 f4 Ra7 fxe5 Nd7 Na3 Nb8 Nc2 Ra8 g4 b5 h4 Qe7 h5 Kd8 Nb4 Ke8 Nd3 Ra6 Nf4 gxf4 g5 Rg6 hxg6 Qd8 Kf2 Ke7 Kf3 f5 e4 h5 g7 c5 d6+ Ke6 a6 b4 a7 b3 a8B b2 g6 b1Q d7 Qb4 Ba6 c4 d3 Qdb6 d8R Q6d6 Qf1 Qb2 Rd7 Qbb4 Rb1 Qa5 Nh3 Qa4 Nf2 Qd4 Nd1 Ne7 g8R Nbc6 g7 Na7 Qh3 Ng6 Nb2 Qa3 B8b7 Rh6 Rh8 Nb5 g8R Bc5 Rgg7 Bb6 Bd2 Qg1 Ba5 Rh7 Rc7 Bd7 Bc8 Qg5 Rf7 Rg7 Qh2 Qh6 Qh3 Rg8 Rfh7 Qg7 Qh2 Kf7 e6+ Kf6 e5+ Kg5 e7 Rf8 e8Q Bc6+ Ke2 Kg4 e6 f3+ Kd2 f2 e7 Kf3 Qd7 f1Q e8B Qg1 Qe6 Qe5 Rhd7 Qg7 Qe3+ Kg4 Qe6 Bf3 Qe3 Bd1 Qe6 Bb3 Qe3 Rf7 Qeh3+ Kg5 Ke2 f4 Kf3 Re7 Ra7 Re1 Rac7 Rf1+ Ke4 Rc1 Re7 Nd4 Ba4 Nb5 Rcd7 Be3 Bd8 Bb6 Qf1 Kg4 Rc7+ Kg5 Bh3 Kh4 Kf5 Qb4 Red7+ Qbe7 Qc2 Kg3 Bg4 Qd6 Be2 Qa3 Qh3+ Kf2 Bg4+ Ke1 Qch2 Nc3 Bc6 Nb5 Bcf3 Qb4 Be2 Qa3 Bd1
nqqQB3/R3N1r1/6Qp/2b1QB2/1NP5/BpPB2Kp/kn5r/2q2QQ1 b - - 0 1 legal: proof: h4 c5 e4 f5 exf5 g5 b4 a5 bxa5 c4 a4 b6 g4 c3 dxc3 Ra7 c4 Ra8 h5 Kf7 Rh4 gxh4 g5 Ke8 g6 Ba6 g7 Bb7 Ra3 Bh1 Rh3 Bd5 Rh2 Bf7 Rh1 Bg6 hxg6 Ra7 Qd3 Ra6 Qd1 Ra8 f4 e5 Kf2 Ke7 c3 d5 a6 Kd6 a7 Kc5 f6 d4 a5 h3 f5 h6 f7 e4 f6 b5 a6 b4 Nf3 e3+ Kg3 b3 Ba3+ Kc6 Ne5+ Kb6 Qh5 Ka5 Bd3 Ka4 Nc6 e2 Ne7 Nd7 Qe5 Nc5 Rf1 e1Q+ Rf2 Qe4 Ra2 Qb7 Bf5 Rc8 a8B d3 a7 Qb8 Bae4 d2 a8B d1Q Bd3 Qc1 Bb7 Rh7 Bc6+ Qb5 Be8 Ra8 Nd2 Qb8 Nf3 Qc6 Nd4 Qd7 Ndc6 Qdc8 Ra1 Ra7 Nb4+ Rd7 Nec6 Ne7 g8Q Nd5 g7 Nb6 Ra2 Be7 f8Q Na8 f7 Rd4 Ra1 Rf4 Ra2 Rf2 Ra1 Bd6 Qe7 Rh2 Qd8 Be7 f8Q Bd6 Qe6 Be7 g8Q Rg7+ Qg6 Bd6 Bc2 Nd3 Qff7 Nb2 Bcd3 Bc5 Ne7+ Qc6 Bg4 Qd7 Qf1 Qc6 Bgf5 Qd7 Nbc6 Qdc8 Nb4+ Qc6 Qg5 Nd1 Kh4 Nf2 Qgg1 Rf7 Kg3 Nd1 Qg5 Rg7 Qg6 Ra2 Bb2 Qd7 Bf7 Qdc7 Rb1 Qcc8 Ba1 Rh2 Bb2 Qd2 Bc1 Qb2 Be8+ Ka3 Be3 Qc2 Ra1+ Kb2 Ra7 Kb1 Na6 Ka2 Bc1 Qd2 Bb2 Qc1 Ba3 Nb2 Nb4+
3N2qk/1R2B1P1/1RQb1b1q/KB1n2P1/5B1R/pQRp1npB/b1r3B1/8 b - - 0 1 legal: proof: e4 d5 d4 g5 f4 c5 fxg5 b5 dxc5 a6 a4 d4 axb5 Qd5 Qe2 Qd7 Qd1 Qd8 g4 h6 g6 a5 Nd2 Ra6 Ndf3 Rd6 Ng5 Rd5 exd5 Kd7 Ne4 Ke8 g5 h5 Nf2 Nc6 Ng4 hxg4 Bh3 Nb8 Bg2 Rh7 Bf1 Rh8 Kd2 e5 h4 f5 b4 f4 c4 f3 d6 d3 Kc3 f2 h5 a4 b6 g3 c6 e4 b7 a3 d7+ Ke7 c7 e3 h6 e2 c5 Na6 b8R Bb7 c8B Qa5 d8B+ Ke8 c6 Qb6 b5 Qa7 h7 Nf6 c7 Ba8 b6 Qb7 Qb3 Bd6 Bf4 Kf8 Bch3 Kg7 c8B Be7 Bfg2 f1Q Bcd7 Qb1 Nf3 Nb4 Ne5 Ng4 Bb5 Qc8+ Nc6 Ne5 b7 Bf6 Be7 Qg8 Nd8 Qg1 Rb1 Qh2 Rhc1 Qh1 Qd5 e1B+ Kb3 Bc3 Ka4 Nf3 Ka5 Bce5 Qc6 Bd6 Rc3 Nd5 Rbb3 Qe6 Rb4 Re8 h8R Qg8 Rh4 Qh2 Nf7 Rc8 Nd8 Rc7 Rc8 Qh1 b8Q Qh2 Qbb6 Bb7 Rb8 Bc8 Rb7 Be6 Rg4 Kh8 Rb1 Ne3 Rb2 Ba2 Rb4 Nd5 Rh4+ Qh7 Qc4 Qh6 Qbc6 Qh1 Qb3 Qe1 Ba4 Qe6 R4b6 Qg8 Bb5 Rc8 Qd7 Rc4 Qe8 Re4 Qd7 Re2 Qc6 Rc2 g7+
1qR2KN1/4P1Q1/B1n3kB/3B2B1/p2r3p/2P1rBbq/pn3Q2/n1QN1Q2 b - - 0 1 legal: proof: b4 g5 h4 e5 hxg5 c5 f4 c4 fxe5 c3 a4 Nf6 dxc3 Bh6 c4 Ng8 c5 Bf8 b5 Bh6 b6 Ne7 Ra3 Qc7 Rb3 Bf8 Rb5 Qd8 Ra5 Ng8 Ra6 bxa6 Bd2 Bb7 Be3 Bc6 Bc1 Bb5 axb5 Qe7 Rh3 Qf6 Rh1 Qd8 Kd2 d5 Kc3 f5 Kd4 Kf7 e4 h5 g4 h4 g6+ Kg7 e6 a5 Ke5 a6 b7 f4 b6 d4 g5 a4 e7 f3 Ke6 a5 e8B f2 c6 d3 e5 d2 c7 a3 c8Q a4 Ba6 f1N Nh3 a2 Nf2 Be7 Ng4 Bf8 Nh6 Nf6 Ng8 Ra7 Bc6 Qd4 Bf3 Ne8 Nc3 Nc6 b8B Ne3 b7 Qb6 Qf1 Qb5 Nd1 Ne7 Qc5 Nc4 Qcf2 Qb1 c3 Na5 Rg1 Nac6 Bd6 Qb2 b8Q Nd5 Be7 Ndb4 Qd6 Nc2 Qa3 Rh6 Rg4 Rb7 Rc4 Rb4 Kd7 Qb1 e6 Nd6 Rc5 Nc4 Ke8 Na1 Qb2 Na7 Rc8 Nc6 Qa3 Nb2 Bd8 Kh8 g7+ Kh7 Bf6 Bd6 e7 Bg3 Kf8 Nd3 Qb2 Kg6 Qa3 Rd4 Qb2 Kf5 g6 Rh5 Qa3 Nb2 Bg5 Qd3 Nf6 Qb5 g8Q Qb8 g7 Kg6 Qh8 Rh6 g8B Rh5 Bh6 Re5 Bgd5 Re3 Ng8 Re1 Ne3 d1Q Qe5 Qd3 Nd1 Ree4 Bcg5 Re3 Qh8 Qe4 Qe5 Qg4 Qh8 Qh3 Qe5 Nd3 Qc1 Nb2 Qg7+
4n3/1p1Q1Rkr/1B1pnq2/3BnRP1/b1q4Q/bP4Np/Q1QQ2B1/6BK b - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 f5 exf5 a5 d4 a4 dxc5 Ra5 Nd2 Ra8 b3 a3 Nc4 Kf7 Nb2 axb2 Bb5 Ke8 Bd3 Kf7 Bf1 Ke8 f4 Kf7 Kf2 b1N c4 e5 g4 h5 Kg2 h4 a4 e4 c6 e3 a5 e2 c7 e1Q g6+ Kf6 c5 Qee7 a6 Qg7 a7 Rh5 c6 Qh8 g5+ Kg7 Ra5 Qf6 Ne2 Qd6 Ng3 Qf6 Be3 Qa1 Qd2 Ne7 f6+ Kg8 f7+ Kg7 f5 Qh6 f6+ Kh8 g7+ Kh7 g8B+ Kg6 Bg1 Nc3 Rf5 h3+ Kh2 Qh7 Bg2 Ned5 Bb6 Nb5 Re1 Qh6 Re7 Qc3 Kh1 Nd6 Bg1 Qc4 Bb6 Bg7 f8B Nf4 B8d5 Ne6 f7 Bb2 Bg7 Qh8 f8Q Ba3 Bgd4 Rh7 Bg1 Qf6 Qh8 Rf7 Qh4 Ne8 Bdf3 d6 Bd5 Bd7 c8Q Rh7 c7 Ba4 Qd7 Nc6 c8Q Ne5 Qcc6 Rc8 a8Q Rc7 Qaa5 Rf7 Qa2 Kg7 Q5d2 Qd4 Qcc1 Qc4 Qcc2 Kg8 Qc8 Rh7 Rf7 Re7 Qd7 Kh8 Rf8+ Kg7 Rh8 N8c7 Re8 Rf7 Re7 Ne8 Rxf7+
1n1Q1Q2/PK1nNRp1/4b1Pp/2Qr2Q1/4R1q1/QB1k2q1/4pq2/R2N1b1R b - - 0 1 illegal: No proof kernel
1N2N2N/2K1Q1n1/r1p1R3/3P1Bp1/3k4/Nn2pRPq/N1rp1QQq/1b5Q b - - 0 1 legal: proof: h4 b5 a4 g5 axb5 e5 d4 Ba6 dxe5 Qe7 h5 Qe6 c3 Qg6 hxg6 Bc8 Rh3 d5 Rh2 f6 Bd2 d4 Bc1 d3 Rh5 Bc5 Rh1 Bd4 cxd4 Bd7 Bf4 Bh3 Bc1 Bc8 e4 Ke7 e6 Ba6 e5 Bc8 Bf4 Kd8 e7+ Kd7 Bg3 Ke6 Bh2 Kd5 e6 Nd7 Qe2 Nb8 Be5 fxe5 Qd1 Kd6 Kd2 Kd5 Ke3 a5 e8N h5 b4 c6 f4 a4 e7 a3 g3 h4 g7 d2 f5 h3 b6 h2 b7 e4 f6 a2 b5 Na6 b8Q Rh4 b6 Rh7 b7 Rh8 f7 Bf5 f8N Rh6 Qf4 Bd7 b8N Bf5 Bh3 Nf6 g8Q+ Be6 Bf5 Nh7 Ne2 Rh3 Ng6 Nf6 Qf2 Rh7 Re1 h1Q Nc1 Nc5 Na3 Qh2 Nh8 Nh5 Qf8 Ra6 Qg2 Bg8 Rf1 Ng7 Rf3 Rh6 Qdh1 Rh4 Rb1 a1Q Na2 Qb2 Re1 Bh7 Bd7 Qc2 Nf6+ Kd6 e8Q+ Kc7 d5 Kb6 Kd4 Nb3+ Ke5 Rg4 Rfe3 Bf5 Qff7 Kc5 Qee6 Rf4 Ne8 Rf1 R1e2 Rc1 Rd3 Bh7 Ree3 Bg6 Qff2 Bh7 Rf3+ e3 Rd4 Qg6 Re4 Qgh6 Bc8 Q6h3 Qe7+ Kb6 Kd6 Rc3 Rd4 Bb1 Re4 Rc2 Bf5 Ra7 Qf7 Ra6 Kd7 Kc5 Re6 Kd4 Qe7 Ra4 Kc8 Ra6 Kc7
1N1QB2b/pPpB4/1p6/Ppq2QQ1/1k3QK1/5rR1/5B1B/nqq1NB1n b - - 0 1 illegal: Other
bQq1QQB1/rQk2qp1/R2pBrPB/pp1p4/2N2BN1/8/P3rB2/5K2 b - - 0 1 illegal: No possible last move
RK6/pp2Q1p1/1p1k2B1/qB1p2RR/2n1r2B/P1b1bp2/1R1P4/1RNQ1B2 b - - 1 2 legal: proof: b4 h5 g4 d6 gxh5 Kd7 e4 Kc6 e5 Nd7 e6 Nc5 bxc5 Bd7 exd7 Rh6 Bc4 Rh7 Bf1 Rh8 f4 e5 Na3 d5 Nb5 e4 Nd6 Rc8 Nc4 Ra8 Nb6 cxb6 Ba3 Kc7 Bb5 Qf6 Kf1 Re8 Ke1 Kd8 Bc1 Re5 fxe5 Qe7 Ba6 Qe8 Bd3 Ke7 Bf1 Qd8 Kf2 f5 Kg3 e3 Kf4 e2 h4 e1B c4 Qe8 d8Q+ Ke6 a3 Nh6 c6 Qf7 c7 Qg6 c8R Ng4 h6 Nf6 h5 Bd6 c5 Ng8 h7 Bf2 c6 Bd4 c7 Bf2 h6 Bh4 Bb2 Qf6 Ra2 Bc5 Ne2 Bhf2 Ra8 Bb4 c8B+ Kf7 e6+ Kg6 e7 Kf7 e8B+ Kf8 Nc1 Be7 Bcd7 Qc6 Ke5 Qc4 Bb5 Bf6+ Kd6 Qa4 Kc7 f4 Kb8 f3 Bd4 Qb4 Rb2 Qa5 Qd7 Ne7 Bg6 Rg8 h8R Nc8 h7 Be3 Rh5 Nd6 Rg5 Nc4 Qe6 Bg1 Bf2 Bc3 Bh4 Bf2 Qc8+ Ke7 Qe8+ Kd6 Qd8+ Kc5 Qe8 Rf8 Qd8 Rf4 Qe7+ Nd6 Re8 Be3 h8R Re4 Rhh5 Rg4 Qf7 Nc4 Re4 Kd6 Rd4 Ne5 Rdb4 Nc4 Rb1 Rd4 R4b2 Re4 Qe7+
1Nb1r1kr/2BNq1n1/2K2p2/5Nq1/1Qb4Q/1PQ2PQ1/1NQb1R1q/1n1n2R1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Nc3 Kf5 Nb1 Ke6 Kd2 c5 Ke3 a5 h4 g5 b3 g4 h6 d4+ Ke4 a4 h5 d3 h7 a3 h6 a2 b6 g3 f3 g2 b7 d2 Na3 c4 Qc2 d1B Bf4 c3 Nc4 Ra6 Nb2 Kf6 Kd5 Qe7 d8Q Ra4 e4 Ra8 d7 Na6 b8N Nc5 Ne2 g1Q Kc6 Qh2 Qb6 Na4 Nd4 Be2 d8Q Bc4 Rag1 a1N Nf5 Ke6 e5 Nf6 Qbd4 Nh5 Qc7 Ng7 Qdb6 Qa3 Rg2 Bb4 Rhg1 Ba5 Re2 Qe7 Qb4 Re8 h8Q f6 h7 Kf7 Rf2 Bb6 Nd7 Be3 Bg3 Bd2 Qg8+ Kg6 h8Q Rb8 Qd3 c2 e6 c1Q Qh4 Nc2 Qdc3 Ne3 Qc2 Nc3 Qca5 Qf8 e7 Ned1 Qe5 Nb1 Qec3 Be1 Bc7+ Qg5 Qa3 Bd2 Qab4 Rd8 e8N Qe7 Bf4 Ra8 Nc7 Re8 Na6 Rb8 Bc7 Ra8 Qgh7+ Kf7 Qg3 Rh8 Qh6 Kg8 Qhh4 Bb7+ Kb6 Re8 Nab8 Bc8 Kc6
1Nn1K3/1pQ3Q1/1r1r2QB/1PNB4/1r2RqBr/n1bb3B/2P4B/1n2bQ1k b - - 0 1 legal: proof: b4 c5 a4 a5 d4 g5 dxc5 f5 h4 f4 hxg5 f3 b5 Qc7 exf3 Bh6 f4 Qd8 f5 Bf8 Ra2 Na6 Rb2 Nb8 Rb4 axb4 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 d6 f4 e4 g4 h4 c6 e3 g6+ Kf6 a5 h3 c7 e2 g5+ Kg7 a6 e1B a7 b3 Nc3 b2 Nge2 b1R Na4 h2 Nc5 Rh4 Nd4 Qd7 Nc6 Rb4 Bh3 Be7 Qe2 Bf6 Qf1 Bfc3 Be3 Qe8 Bg1 Nd7 Nb8 Qf8 Ke6 d5 Bg4 d4 f6+ Kh8 f7 Kg7 f5 d3 Bh3 d2 Bg4 d1N f6+ Kh8 g7+ Kh7 g6+ Kh6 Bh3 Ne7 g8Q Kh5 g7 Ne5+ Kd6 Be6 c8B Bc4 Bcg4+ Kg5 Qh7 Bd3 g8B Nc4+ Kd7 Nc8 Qe4 Qd6+ Ke8 Qf4 f8Q Na3 f7 Rh6 Qd6 Kh4 f8B Kg3 Qc7 Rd6 Bh6 Rb6 Qg6 Rd6 Bd5 Rb6 Bhg2 Rd6 Be3 Rb6 Rg1 h1R B2h3+ Kh2 Bc1 Rd6 Rg3 Rb6 Re3 Rd6 Re4 Rb6 Qe2+ Kg1 Bd2 Rh2 Be3+ Kh1 Bg1 Rd6 Bf1 Rh4 Bh2 Bcd2 Bfh3 Nc3 Qf2 Ncb1 Qd4 Bc3 Qdg7 Rb6 Nba6 Rb8 a8Q Rd6 Qa7 Ra8 Nb8 Rb6 Qa5 Raa6 Qcf7 Rd6 Qac7 Rab6 Qff5 Qc1 Qf2 Qf4 Qf1+
1q2b1Qq/rRR2p2/k4P2/B1BbQ2r/BPb1B1b1/4R1nn/3B2R1/1KN1b3 b - - 0 1 illegal: No proof kernel
3N1RK1/1rN4r/Nn1P4/1QnQR2Q/n1n2p1q/r1bkqP1N/Q1b2BN1/8 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Nc3 Kf5 Nb1 Ke6 Kd2 Kf5 Ke3 a5 Kd4 g5 b4 a4 h4 c6 e4+ Kf6 b6 a3 b5 g4 f3 g3 h6 g2 b7 a2 h7 Ra3 b6 Ne7 h5 Ng6 h6 Bg7 Nd2 Ne5 Rh5 Nc4 Nh3 g1R e5+ Ke6 Kc5 f5 Nf1 f4 Ne3 d4 Ng2 d3 Be3 d2 Bf2 Qh4 Qc2 d1N d8N+ Kd7 Qd2 Ndb2 Qd5 Rb1 Kd4 c5+ Ke4 Nd1 Kf5 Ndb2 Kg6 Na4 Kf7 Rbb3 Re1 a1N Rf5 Rb5 Re4 Nb3 Re3 Nca5 Re1 c4 Rf6 c3 Re4 Rg8 h8Q c2 h7 c1Q Re3 Re8 Qg8 Nc4 h8Q Nbc5 Qh5 Re6 Rf5 Rh6 Re4 Rh7 Re2 Nc6 b8Q N6a5 b7 Ncb6 Qa2 Bh8+ Kf8 Rb1 Qgd5 Nac4 Kg8 Qe3 Rf7+ Ke8 e6 Bc3 e7 Bf5 Rf6+ Kd7 e8N Bc2 Nc7 Rbb3 Rf8 Rb4 Qd1 Rb5 Rd2 Rbb3 Rd5 Rb1 Re5 Rb5 Nde6 Kc6 Qd3 Rbb3 Qa8 Rb1 Nd8+ Kd7 Qd1 Ncb2 b8N+ Kc8 Re6 Nd5 Nba6+ Kd7 Nb7 Kc6 Qb8 Kb6 Ne8 Kb5 Qa1 Kc4 Re5 Qd8 Nec7 Qh4 Qe2+ Kd4 Nd8 Nc4 Qe1 Rb4 Qa2 Rb6 Qa8 Kd3 Qeb1 Rb5 Qc6 Rb7 Qbb5 Ndb6 Qd5+
n1Rbb1K1/r1nNq2R/2Nn1R2/2N2r2/P2QB3/3p1r2/2kPrQ2/1RNq3N b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 Ra6 bxa5 Ra7 Ba3 Ra8 Bb4 cxb4 Ke2 Kf7 Ke3 Kf6 Kf4 d5 h4 b5 a4 b3 c4 b4 c5 d4 h6 d3 h5 e6 h7 b2 c6 b3 c7 g6 h6 Na6 Ne2 Qd7 Qe1 Ra7 Nc1 Ne7 Nc3 b1Q Bg2 b2 Rf1 g5+ Kg4 e5 Kh5 e4 f4 g4 Qf2 g3 N3e2 e3 Be4 g2 Ng3 g1R Nh1 Rhg8 h8R Nd5 h7 Be7 Kh6 Qc2 Rb1 e2 Bf3 e1R Be4 Bb7 c8N Nac7 a6 Bd8 Ne7 R8g3 Nc6 Kf7 f6 Ke6 f7 Qe7 f8R Na8 f5+ Kd6 f6 Ndc7 f7 Rf3 Re8 Qd1 f8N Re2 Nd7 Rg5 Nc5 Rgf5 Ref8 Bc8 Rf7 Be6 Kg7 Bd7 Rg8 Be8 h8Q Rh3 Rf8 Rhe3 Kg8 Ref3 Ra1 b1N Rh7 Na3 Rb1 Rb7 a7 Nab5 N5b3 Ke6 Qg7 Nd6 Qgd4 Nb6 a8N Ra7 Rh4 Nbd5 Nb6 Na8 Rh7 Ndc7 Nd7 Re5 Bg6 Ref5 Qde3+ Kd5 Nbc5 Kc4 Rf6 Re5 Be4 Ref5 Rb8 Rh3 Rc8 Rhf3 Nce5+ Kb4 Nc6+ Ka3 Re1 Kb2 Qd4+ Kc2 N1b3 Qc1 Rd1 Qa3 Ra1 Qc1 Rb1 Qd1 Nc1
5Bbn/RQ2Bn2/1BB4p/2QRQ2K/3b2Q1/Pbq4P/kN3r2/Q3nqrb b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 g5 f4 Qd6 f6 Qd8 f5 Kf7 Nc3 Ke8 Nce2 Nc6 Nf4 gxf4 Qf3 Nb8 Qe2 Bh6 Qd1 Bf8 Kf2 Kd7 Kf3 Kd6 Kg4 Kc5 d4+ Kb4 a6 e5 d6 b5 g3 c5 f7 c4 d7 e4 h3 c3 d5 f3 f6 e3 a7 h6 d6 e2 Kh4 e1N g4 f2 g5 c2 g6 Bb7 g7 Ne7 g8Q Nbc6 Nf3 Ng6+ Kh5 Qc8 d8B Nce5 d7 Bg7 Bg5 Ka3 f8Q+ b4 f7 c1Q Bg2 f1B Qc5 Bc4 f8B Bb3 Bge7 Nf7 Bb6 Bd4 d8Q Rh7 Rg1 Rg7 Qdc7 Ngh8 Nd2 Qc3 Be4 Qf5+ Rg5 Qf1 Rd5 Rg1 Qgg4 Rd8 a8Q+ Kb2 Bg7 Rf8 Qe5 Bc6 Qb7 Ka3 Rc1 Kb2 a3 Ka2 Rd6 Bcd5 Bh1 Be4 Nc4 Bh7 Rb1 Bg8 Nb2 Ng5 Qh4 Rf2 Bgf8 Ngf7 Qc1 Ba4 Qhg5 b3 Qg4 Bc6 Rd5 Ba4 Nc4 b2 Qcd1 Bc6 Rc1 b1B Nb2 Bd3 Rc2 Ba6 Rd2 Be2 Rd7 Ba4 Bc6 Bb3 Rd3 Bf3 Qc1 Be3 R3d5 Bd4 Qd1 Bh1 Rc7 Bc2 Qa1+ Kb3 Qb8 Bd1 Ra7 Bc2 Qc1 Ka2 Qb7 Bb3 Qa1+
4bBK1/6pn/1NN3k1/1r2Q3/qn1QB1P1/1PR1nN2/3qrNQ1/Qnb2bQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 d5 fxe5 d4 Ra3 h4 Rg3 d3 cxd3 hxg3 d4 Ke7 d5 Ke8 e4 a5 Ke2 f5 Ke3 Kf7 Kd4 g2 h4 f4 b6 f3 d6 c5+ Kd5 f2 d4 a4 d7 a3 b7 c4 h5 a2 e6+ Kf6 h6 a1Q e5+ Kg6 e7 c3 Ke6 c2 e8Q+ Kh7 Kf7 Ra6 b3 Qg5 d8N Bd6 e6 Be7 d5 Ra7 d6 Bf8 e7 Qa2 d7 Qb2 Nd2 Qd4 Ne4 Qgd2 Ba3 c1N Bc4 f1B Nf3 g1N Bd5 Nf6 Nc6 Na2 d8Q Ne2 Rh3 Ng3 Nf2 Nf5 Qa1 Na6 b8N N6b4 Nd7 Ra5 Nb6 Ne3 Qd6 Bca6 Qa8 Rb5 e8Q Nc3 Qee5 Nb1 Qc5 Qf4 Qcd4 Bd6 Qb7 Re8 Qa7 Re7+ Kf8 Kg6 h7 Bc7 h8Q Nh7+ Kg8 Bc8 Qb7 Bd7 Rg3 Be8 Qa8 Nf8 Qh1 Nh7 Qg2 Re6 Qa4 Bd8 Qa7 Bg5 Rh3 Nbc2 Bf8 Bh6 Qc5 Qa4 Qad4 Nb4 Qc1 Bd3 Qcg1 Bf1 Qa1 Bf4 Qd7 Bg5 Qdd6 Bh6 Qc5 Bf4 Qcd4 Nf5 Qc7 Re2 Nh2 Qb2 Qce5 Bc1 Rc3 Ne3 Nf3 Qd2 Be4+
1NNBB3/b1rB4/5NB1/1Ppb1NQQ/2PR4/1rn1kr2/p2Nb3/2q1nn1K b - - 0 1 illegal: No possible last move
b2NqN1Q/7N/K1Qp2Qb/QNpP4/2R1Q1rb/3k4/rP1n4/1rBq1R1n b - - 0 1 illegal: No possible last move, all moves rejected
5Q2/3N2QQ/2b5/2Bp3B/P1qP1nbB/brn3R1/2pKBkQ1/q1r1nBN1 b - - 0 1 legal: proof: b4 b5 c4 a5 a4 g5 h4 f5 hxg5 Na6 e4 Nf6 exf5 Nb8 Ra3 Bb7 Rb3 Ba6 cxb5 Bc8 b6 Ng8 b5 Nf6 Rb2 Ng8 Rb4 axb4 d4 Kf7 g4 e5 f4 c5 g6+ Kf6 b7 h5 Qe2 e4 g7 e3 Na3 c4 Qg2 c3 Rh3 h4 b6 e2 Nc4 b3 Ne5 Na6 b8B b2 b7 b1Q Ba7 Ne7 g8B Nc5 b8Q Qc7 Qbb7 Ne6 Bf7 Rg8 Rd3 h3 Bh5 h2 Rg3 Qa1 Qbe4 Nd5 g5+ Kg7 g6 Kf6 g7 Ba3 Bb6 Rb8 Qb1 Re8 g8B d6 Bh7 Qc4 Bc5 Rb3 Qbe4 c2 B7g6 Kg7 f6+ Kh6 f7 Nc3 Bf3 Bd7 Bgh5 d5 Bfg4 Bc6 Nd7 Re7 Re3 Re8 f5 Kg5 f6 Kh4 Qh7 Re7 f8Q Re8 Qfg7 h1B Qge4 Bf3 f7 Kg3 f8Q Re7 Rd3 Re8 Rd1 Re7 Bg5 Nf4 Bf6 Qa2 Rd3 Qa1+ Kd2 Kf2 Bf5 Bg4 Rg3 e1N Qh1 Ned3 Bh4 Re1 Be4 Reb1 Bf3 Ne1 B3e2 Rc1 Qg2+
1rQk1qNN/Kn2n1R1/bR3q2/2pn4/2P1N1R1/3NQP1B/pr3b2/1q3RR1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 f5 dxe5 h6 g4 Ke7 gxf5 Ke8 Bg5 hxg5 Kd2 a5 Kc3 d5 Kd4 g6 c4 g4 h4 a4 b4 a3 e4 a2 f3 g3 f6 g5 f7+ Ke7 Kc5 g2 h5 d4 e6 d3 e5 c6 h6 d2 b6 g4 b7 g3 h7 Qa5+ b5 Bd7 Nc3 Qc7 b6 Nh6 Ne4 Ra3 Qb3 d1Q Qe3 Bg7 f8R Nf7 Rg8 Nd8 Nh3 g1Q Nf4 g2 Nd3 Qc8 Rh4 Qh2 Rg4 g1N Bh3 Rb3 Rc1 Qdc2 Rf1 Ne2 Rgg1 Bf8 R8g4 Qf4 Rg7+ Ke8+ e7 Qb1 R7g4 Rg8 h8N Rb2 Rg7 Be6 R7g4 Bh6 Rg7 Kd7 e8R+ Qf7 Rf8 Nf4 R1g4 Bf5 e6+ Ke7 Rgg1 Nd5 R7g4 Qf6 Rf7+ Ke8 e7 Bg5 Rg7 Bh4 Nf4 Bf2 Nd3 Kd7 e8N+ Nf7 R4g2 Kd8 R2g5 Nd6 R5g4 Qf8 N8f6 Qe6 Ng6 Rh8 Ng8 Qef6 Rf7 Rh5 Nh8 Bc8 Rfg7 Nf5+ Nd6 Nfe7 Ne4 Re5 Kd4 Na6 b8Q Nc5 b7 Re2 Qa8 Rb2 b8R Nb7 Qa6 Na5 Rb6 Bb7 Qb5 Ba6 Kc5 Re6 Qb3 Rd6 Qc3 Rd7 Qe5 Rb7 Qf5 Rb8 Rb7 Nb4 Kb6 c5+ Ka7 Nbd5 Rb6 Nb7 Qc8+
1rbq3k/P3nq2/RR3N1R/3B1n1Q/KQ1R1p1b/QR2q1b1/3QpP1r/6N1 b - - 0 1 legal: proof: e4 a5 g4 d5 exd5 c5 b4 h5 bxa5 Kd7 gxh5 Ke8 Ba3 Qc7 Bb4 cxb4 Be2 Qd7 Bf1 Qd8 a4 b5 h4 g5 c4 e5 d4 f5 Kd2 Kf7 Kc2 Kg7 Kb3 g4 d6 g3 d5 g2 d7 e4 d6 f4 h6+ Kh7 c5 e3 c6 e2 c7 Ba6 c8Q Qb6 d8R Bb7 a6 Qd4 a7 Qd3+ Nc3 Qe4 h5 Qe3 a5 Qe7 d7 Qh4 a6 Qh3 Qc4 Qe6 Rh3 Bc8 Nd5 Be7 Qd2 Nc6 Re8 Rb8 a8Q Qf6 d8R Qf7 a7 Bg5 Re6 Nce7 Rb6 Bh4 Raa6 Nf5 Qcc3 Nge7 Qb7 Bf6 Rdd6 Bh4 Qcb2 Kg8 Qa3 Kh7 Rf3 Kg8 h7+ Kg7 Nh3 g1B Bg2 Bh2 Ng1 B2g3 Bh1 Rf8 Rd3 Kh8 Rd4 Rd8 Rh6 Rd6 Bg2 Re6 Nf6 Rc6+ Kb2 b3 Bd5 Re6 Kc3 b2 Kb4 b1Q+ Ka5 b4 Ka4 Ng8 Qe7 b3 Qed6 b2 Q6b4 Kg7 h8R Qc1 Nh7 Nge7 Rd8 b1Q Rd7 Re5 Rdb7 Qd3 Rc7 Qcc4 Nf6 Qf8 Be6 Nd6 Rh8 Qd5 Rc3 Qd8 Rb3 Qe3 Bg8 Bg5 h6+ Kg6 h7 Kg7 Bf7 Qe6 Bg8 Qf5 Bd5 Re6 Ng4 Rh6 Nf6 Rh2 Re8 Ng6 Re6 B5h4 h8Q+ Kf7 Qc2 Ne7 Qh5+ Kg7 Nh7 Qf7 Rh6 Kh8 Qcd2 Ndf5 Nf6+
1n2QN2/2RpBP1r/k1r2BB1/1pNQn1Bb/3Q4/1Q1P3K/2bq1q1b/4Q1r1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 b4 c6 b6 Qc7 b7 Nf6 b5 Qb6 Ra5 Qd8 b6 Ng8 Rb5 cxb5 f4 h5 Kf2 a5 Kg3 e5 c4 e4 g6 h4+ Kh3 a4 g4 e3 c5 a3 g7 a2 g5 a1Q f6 e2 f7+ Ke7 c6 Kd6 g6 Kc5 f5 e1R c7 Qb2 f6 Re6 Qe1 Re2 Nf3 Re3 Bd3 Be7 f8B Qb3 Nc3 Ra5 Ne4+ Kc6 Nc5 Nh6 g8Q Qb2 g7 Bd6 Qb3 Ng4 g8Q Ne5 Bg6 Ra6 Be7 Qf8 d3 Rh7 Qgc4 Qd2 Qd4 Re4 Ng5 Rg4 Nge6 Rg1 Qbc3 Qf7 Nf8 Qfa2 f7 Qf2 Rh2 Qae2 Rg2 Qd2 Kh2 h3 Qb3 Qf5 Kg3 h2 Bf6 h1B Be7 Qb4 Bcg5 Qd2 Bgf6 Rf1 Rh2 Bf3 Rh6 Qff4+ Kh3 Rg1 Rh4 Bh5 Rg4 Qa2 Rg2 Qb2 Rc2 Qf2 Rc1 Qbd2 Bg5 Ra4 Bef6 Rc4 Rc2 Na6 b8Q Bb7 Qe8 Nb8 c8Q+ Bc7 Rc1 Ba8 b7 Kb6 Qe6+ Ka7 Qce8 Bd1+ Qh4 Bc2 Qd5 Rc3 Na4 Rc6 Nc5 Nc4 Be7 Bh2 Bgf6 Ne5 Bg5 Na6 b8B+ Kb6 Bbd6 Nb8 Bef6 Bb7 Na4+ Ka6 Bde7 Bb1 Rc4 Bc2 Rc3 Re6 Rc7 Rd6 Qc5 Bf3 Qcd5 Bh5 Qhd4 Rc6 Nc5+
1Q5n/1p3n2/P1Rb3Q/KB2k1qB/b5rN/R1B1rp2/1Pr4q/1Rb1R1BB b - - 0 1 illegal: No proof kernel
1nR2RNr/2rPQp1R/2k2P2/3RQ2p/1rqQrNbK/2B1R1Q1/n7/4r1b1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Kd7 e3 e6 d6 Bb7 d5 Qe7 Bc4 Qd8 Bb3 Bc8 Ba2 Ke8 d7+ Ke7 Bc4 Kd6 Bb3 Ke5 d6 Kf5 Bd5 exd5 Ra3 Ke5 Ra1 Ke6 b4 c5 g4 a5 f4 d4 Kf2 Kd5 Kg3 d3 e4+ Kd4 b6 c4 g6 d2 b7 h6 f5 c3 g5 c2 e5 Kd5 e6 a4 f6 a3 e7 a2 e8R Ra6 g7 Ra5 b5 Qc7 d8Q Nd7 b8Q Nc5 g6 Ra7 b6 Bg4 b7 Bh5 Kh4 Qe7 d7 Qe2 Bb2 c1R Re3 Bg4 Bc3 Nb3 Nh3 Qc4 Qe7 Kc6 Qbe5 Ra4 b8R Rb4 Nf4 Rc2 Qg1 d1R Rhh3 Nc1 Rc8+ Kb6 Rh2 Rd4 Rd2 Re4 Rd5 Kb7 Qd1 Kb6 Qdd4+ Kb7 Q7d6 Ne7 g8R Nc6 g7 Be7 Rgf8 Nb8 g8Q Bd8 Qde7 Bb6 Bb2 Ba7 Nc3 Bb6 Rb1 a1R Qg7 Na2 Rh1 Re1 Ba1 Bf3 Qg3 Rcc1 Ra5 Be2 Nd5 Bg4 Bc3 Ba7 Qe8 Bc5 Ne7 Ba7 Rd5 h5 Ng8 Bb6 Q8e7 Bc5 Rcd8 Kc6 Rg1 Rb7 Rde8 Rcb1 Rc8+ Rc7 Rg2 Rb4 Qf3 Bh3 Rg7 Bg4 Qg3 Bb6 Rh7 Ba7 Rf3 Bc5 Qd2 Be3 Qdd4 Bg1 Re3
b1k2bKN/R2N4/Nr3pn1/1B5Q/NP1Q1Q2/1p1q1P2/rb1Q2R1/2b1Nnb1 b - - 0 1 illegal: No extended proof kernel
3KBk2/1r3Nrr/2BBP1NN/pN5b/5QpQ/6P1/nnBb2nn/NR5q b - - 0 1 legal: proof: b4 e5 d4 c5 dxc5 b5 a4 h5 axb5 h4 f4 h3 fxe5 Na6 g3 Nb8 Ra6 Bb7 Rf6 Ba6 Rf2 Bc8 Rg2 hxg2 Kd2 g5 Kd3 f5 Kc4 a5 Kd5 g4 e4 d6 c4 f4 h4 f3 c6 f2 h5 Qg5 h6 Bg7 b6 Ke7 c7 Qe3 b7 Qa3 h7 Qe3 e6 Bb2 b5 Ra6 c5 Ke8 b6 Qh6 c6 Ba1 e5 Kf8 e7+ Kg7 e8B Bd4 e6 Ra7 Bd3 f1N Nh3 g1N Bc2 Qh5+ Ng5 Nf3 Ba3 Bf2 Nc3 Ne1 Nb5 Na6 b8Q Nh2 b7 Bd7 c8N Be3 c7 Kf8 Ne7 Nd3 c8B Nb2 Qg1 Qh4 Nf7 Bd2 Nh6 Qh3 Qc7 Qf1 b8N Rb7 Nbc6 Nb4+ Kd4 d5 Kc5 d4 Kd6 d3 Ncd4 Qa1 Nb3 Nf6 Qgb6 Nh5 Rb1 Bc6 Bcd7 Nf4 Qa7 Be4 Bc6 Bg6 Kd7 Na2 Bd6 Ng2 Kd8 Bh5 Qab8 Rg8 h8N Rg7 N8f7 Rh7 Rh1 Qf1 Na1 Qf3 Rb1 Qf1 Ng5 Qh1 Ngf7 Nf3 Ng6+ Kg7 Qe7 Rc7 Bf4 Be3 Ng8 d2 Ngh6 Rb7 Qh4 Nh2 Nfe5 d1R+ Qd6 Rd5 Ne7 Bd2 Nef7 Rg5 Qd4+ Kf8 Bd6 Rg6 Qf4 Rgg7 Ng6#
R2nQ1r1/NR6/3rr1qR/4PNnN/pr1B1K2/P6b/3RQ1bp/k3RNb1 b - - 0 1 illegal: No possible last move
r5R1/3B2n1/Qpq4b/1nrb1b1B/KP1NQ1nB/2B1pnP1/2QQ4/3R1B1k b - - 0 1 legal: proof: e4 g5 h4 f5 exf5 d5 hxg5 a6 c4 Ra7 cxd5 Ra8 Na3 a5 Nc2 a4 b4 Ra5 Nd4 Ra8 Nb3 axb3 f4 Kd7 d4 Kd6 Kd2 c5 Kc3 e5 a4 h5 f6 b6 g3 e4 f7 h4 a5 e3 g6 b2 Kb3 b1N a6 c4+ Ka4 h3 a7 c3 g7 c2 f5 Bb7 Nf3 Na6 Bb2 c1N Bc3 Nf6 g8B Qc7 Qc2 Nd3 Rh2 Be7 f8Q Rh6 Bf7 Na3 Qe8 Qc8 Rd1 Ne5 Rf2 h2 Bh5 h1B Rfd2 Rb8 a8B Nfg4 Qb5 Qe6 f6 Bc8 f7 Bg5 Bc6 Nc7 Qa6 Ra8 Rf2 Ne8 f8Q+ Be7 Qg8 Nb5 Qgg6 Bg5 Qh7 Ng7 Rfd2 Ke7 d6+ Kf6 d5 Rg6 d7 Bh6 d6 Rg5 Rd3 Qc4 d8B+ Ke6 Be4 Qc6 d7 Rf5 R3d2 Rg5 Bed3 Kd5 Be7 Rf5 d8Q+ Bd7 Bh4 Rg5 Qb2 Rf5 Bc4+ Ke4 Qe8 Be6 Rd8 Bc8 Nd4 Be6 Nb3 Kf3 Qd2 Bc8 Be6 Bd7 Be2+ Kg2 Bf1+ Kg1 Nd4 Bg2 Ra1 Kh1 Rd1 Be4 Qeg6 Nf3 Rg8 Rc5 Qf5 Bd5 Qfc2 Bc8 Qhe4 Bd7 Bef7 Bc8 Be8 Bf5 Bd7
2QQB3/b1R1Q2n/1Prr2NK/k4p2/1Rp1Q1N1/qb6/Rrr1nP1Q/R5b1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e5 d4 Qf6 d6 Qh6 d5 Qf6 Be3 Qd8 Bd4 exd4 Kd2 Kd7 h4 a5 b4 f5 e4 c5 b6 g5 h6 a4 h5 a3 b7 a2 b5 d3 Ke3 d2 e5 g4 Kf4 g3 e6+ Ke8 d7+ Ke7 Kg5 Kd6+ e7 Kc7 h7 Kb6 d6 g2 h6 Nc6 b8R+ Bb7 Ne2 g1B Qc2 d1R Nf4 Qc8 d8R Na5 e8Q Nc6 d7 Nd4 Na3 Nb3 Qe7 Ra6 Ng6 Nc1 Qce4 Ne2 Nc2 Nf6 Ne3 Rd6 Ng4 Ka5 Rh5 Rg8 h8Q Bd5 h7 Rac6 b6 Qa6 Rdc8 Bb3 Ra8 Bg7 Rc7 Rc8 d8Q Bh6+ Kh4 Bf4 Bg2 Bg3+ Kg5 Qa7 Qhf8 Be5 h8Q Nh7+ Kh6 Beh2 Rd1 a1R Rh4 Ra2 Bf1 Rb2 Ra1+ Kb5 Ra2 Qa3 Ra4 Be5 Rb4+ Ka5 Rh1 c4 Bg2 Rdd2 Bf3 Rcd6 Qfe8 Rdc2 Qeg8 Bgh2 Rha1 Bg1 Rc5+ Ka6 Bh1 Qa4 Qge6 Ng5 Qc6 Rd1 Qhf6 Nh7 Qh4 Qa3 Qh2 Bb8 Qa8+ Ba7 Bc6 Rd4 Qe4 Rd6 Be8 Rc7 Rc6 Ka5 Qac8 Rf6 Rd6 Rc6 Rd7 Rfd6 Rc7
5Qk1/1B1nr1b1/r3pnb1/b1q1r2Q/r3QN2/pBR1B2P/3QP3/B2K1BR1 b - - 0 1 illegal: No possible last move, all moves rejected
2N1Qb2/1q2n3/1bQ1b3/pN1B3p/2KN1n1P/BP4R1/1Qb1N1q1/Q1N1krr1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 f4 g5 Ra4 Nh6 exf5 Rg8 f6 Rh8 f5 Ng8 Rf4 gxf4 Ke2 Kd7 Kd3 Kd6 h4 Ke5 g4 a5 f7 h5 d6 c5 f6 f3 d7 Kf4 g5 Kg3 b6 Kf2 g6 e5 b7 e4+ Kc4 e3 d4 e2 d5 e1B d6 Nc6 b8Q Be7 f8N Qe8 d8Q Rh7 g7 Rh6 d7 Rh7 f7 Nd4 Rh3 Ne6 Qdb6 Nf4 d8Q Qc6 Rg3 Qb7 Ng6 Bf8 Nc3 Ne7 g8N Rg7 Nge2 Be6+ Q8d5 Bd2 Ne5 Be3 Qe8 Bd4 Qda4 Ke1 Bg2 f2 Qa1 f1B Nb5 Ra7 Bh1 Bfh3 b3 Bhf5 Ba3+ Bb1 Qb2 Bc2 Qbc6 Bf2 Rh3 Rg1 Nd3+ Kf1 Ndc1 Ke1 Rg3 Ra8 Kc3 c4 Qe5 Bb6 Qf6 Rd8 Be4 Rd1 Bd5 Kf2 Qh8 Rdf1 Qg7 Ke1 Qh8 Bd8 Kd4 c3 Kc4 Bb6 Qa1 Bh7 Qe5 c2 Qeb2 Bg7 f8N Bh6 Nd7 Bf8 Nh6 Bg6 Nf5 Bh7 Nfd4 Bhf5 Na2+ c1Q+ Qc2 Qd1 Nac1 Qd2 Qca2 Bc2 Q2b2 Bd8 Nb6 Bc7 Nec3 Qg2 Nc8 Bb6 N3e2
1qRR3r/k2p3B/PbQ1b2Q/4n1NK/5R1B/b1b1p2q/2QRP1nQ/3Q1r2 b - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 h5 dxc5 f6 g4 Rh6 Nd2 Rh7 Ndf3 Rh8 Ne5 f5 gxf5 Qc7 Ng4 hxg4 Be3 Qb6 Bc1 Qd8 h4 e5 f4 g5 Kf2 b5 Kg3 b4 a4 b3 c4 b2 h5 b1Q f6 e4 f7+ Ke7 f5 Qb5 c6 Ba6 c5 Nh6 f6+ Ke6 c7 Qb1 c8R Rg8 c6 Bc4 a6 Qb5 a5 Qc5 c7 Qa3+ Nf3 Rh8 a7 Nc6 a6 Ne5 Bh3 Bd6 Bd2 Kd5 f8Q Kc6 f7 Kb6 Rf1 Be6 Ra2 Be7 Be1 Nf5+ Kh2 Nh4 Kg3 Qe3 h6 Ba3 h7 Ng2 Qh6 Rb8 a8Q Qd3 Qc6+ Ka7 f8Q Rb1 Rb8 Qe3 c8R Qc7 Rb6 Qb8 Rd2 Qb3 Qfc5 Rc1 Qcc2 Ra1 Kh2 g3+ Kh1 g4 Ng5 Rc1 Rff8 Qc3 Rb4 Qe3 Rfd8 Qd3 Bf2+ Qe3 Qg1 Rf1 Qa2 Re1 Rdd4 Rf8 h8Q Nf4 Qh5 g2+ Kh2 Rb1 Q8h6 Rh8 Qe1 Qf3 Qed2 Rf1 Qac2 Qe3 Qdd1 g1B+ Kh1 g3 Bf5 Qd3 Bh7 Qe3 Be1 Qc3 Rd3 Qb3 Qh2 Bb6+ Qg1 g2+ Kh2 Bd4 Kg3 Bb6 Qgh2 g1B Kh4 Bgd4 Bg3 Ng2+ Kh5 Ba1 Rd5 Qc3 Bh4 Qh3 Rd3 e3 Rd2 Bc3 Rf4
QQ5Q/P4r1R/1q1n1k2/N2q1bRp/2N1r2b/K2NQQ1N/3nqp1P/1B2q3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 g5 f4 Qd6 f6 Qd8 f5 Kf7 Ba3 Ke8 Bd6 Nh6 Be5 Ng8 Bf4 gxf4 a4 Kf7 g4 e5 d4 b5 Kd2 c5 Kc1 h5 Kb2 b4 d6 c4 d5 b3 a6 e4 a7 c3+ Ka3 c2 g5 e3 g6+ Ke8 a5 f3 f7+ Kd7 f6 b2 g7 c1Q a6 f2 Qf3 e2 Nh3 e1Q Nd2 Qe5 Bd3 Qee8 Nc4 Qee7 Qe3 Qe5 Bb1 Qf1 Rg1 Nc6 Rg5 Nge7 g8Q Bh6 f8Q Rh7 f7 Qe1 Qh8 Nf5 Ra2 Rb8 a8Q Rb4 Qfg8 Ncd4 f8Q Nb3 a7 Ng7 Qff3 Nd2 Ra1 Qde8 Qb8 Kd8 d7 Ke7 d8N Bf5 d6+ Kf6 d7 Qd5 Nb7 Qee6 d8N Qe7 Nca5 Re4+ Nd6 Qe2 Ndc6 Qd8 Ndc4 Qb6 Rg4 Bg5 Nb4 Bh4 Rg3 Qdb5 Rg5 Qd5 Ba2 b1Q Nd3 Qbe1 Rd1 Ke7 Rc1 Ne8 Bb1 Nd6 Qa8 Rf7 Qgb8 Qh1 Rcg1 Ke6 Rg7 Kf6 R1g5 Qhe1 Rh7+
2Br1b2/B2pbR1Q/1BnBp2N/qpPNP1k1/4N1r1/1r6/1Q1B1n2/3b1KN1 b - - 0 1 illegal: No possible last move
3n1R1Q/b1b1n1pN/1pQ2N2/2BNRRN1/1PRR1p2/2r2Pnk/K7/2q2rq1 b - - 0 2 legal: proof: c4 h5 g4 d5 gxh5 b6 cxd5 Rh7 a4 Bg4 a5 Rh8 a6 Bc8 d4 Kd7 d6 e6 d5 Qe7 Bg2 Bb7 axb7 Qd8 Be4 Ke8 d7+ Ke7 Bg2 Kd6 Be4 Kc5 d6 Kb5 Bd5 exd5 Nf3 Kc5 Ng1 Kc6 Kd2 f5 Kc3 a5 Kb3 a4+ Ka2 f4 b4 a3 h4 d4 e4 d3 f3 d2 e5 Kd5 e6 Ke5 h6 Kf5 e7 c5 e8N c4 h5 c3 h7 c2 h6 Qc7 d8R Na6 b8R Qc3 d7 Ne7 Nh3 Nc5 Re1 Ne6 Rdc8 Nd8 Nf6 Rg8 Qe2 d1Q h8Q Qcd4 h7 Qg1 Be3 Qc1 Nc3 Ra5 Nf2 Kg5 Ncd5 Kh4 N2g4 Kh3 Bc5 Ra6 Qe6 Ra4 Kb3 a2 Qc6 Ra5 Re5 Ra6 Rb1 a1B Rf5 Be5 Ra1 Bc7 Ra5 Ra7 Ka2 Ra6 Ra8 Bb8 Rc7 Ba7 Re5 Ng6 Rac8 Bd6 Rf5 Ne7 Rb8 Nf7 d8R Be5 Rf8 Nd8 Rd7 Bc7 Rc8 Qcf1 Nc3 Qc1 Rd4 Qcd1 Ncd5 c1N+ Ka1 Ne2+ Ka2 Qdf1 Ne5 Ng3 Nf7 Kh2 Ng5 Qc1 Ra4 Ra5 Ra3 Rb5 Re3 Kg2 Ree5 Kh2 Rf7 Re8 Rf8 Kg2 Qg8 Kh2 h8N Kg2 Ngh7 Kh3 Nf7 Ra5+ Kb3 Ra1 Qh8 Rb1+ Ka2 Rb3 Ne4 Rc3 Nef6 Nb7 Ree4 Be5 Bd6 Ng8 Qd7 Nd8 Rcc4 Re7 Bc5 Bc7 Re1 Re6 Re2 Ne7 Qc6 Ree3 Re1 Red3 Re3 Rd1 Ree5 Rf1 Nfg5+
4b1r1/2r3nN/1q1Bn3/1Q1q1BqQ/3BRBNp/kBpp4/2PP2b1/2K3QQ b - - 1 2 legal: proof: e4 f5 exf5 g5 a4 b5 axb5 Nh6 f4 Nf7 f6 Nh6 f5 Ng8 g4 Nc6 h4 Ba6 Ra4 Nb8 Rf4 gxf4 b4 Bc8 g5 Bh6 g6 Bg5 hxg5 Ba6 Na3 Bb7 Nb1 Bc8 g7 e5 f7+ Ke7 f6+ Kd6 f8B+ Ne7 g8B h5 g6 a5 b6 c5 f7 a4 b5 h4 b7 a3 b6 c4 g7 Kc5 Bh3 Kb4 Bf1 d5 Nh3 a2 Na3 a1Q Bd3 d4 Qh5 e4 Kd1 e3 Bf5 f3 Re1 d3 Ng5 f2 Nh7 Qa2 Bb2 f1B Kc1 e2 Be5 c3 Nc4 Bg2 Ne3 Nc6 b8B Ra7 b7 Qad5 Ng4 Bd7 Bf4 Qb6 Bbe5 Ka4 b8Q Rc7 Qb7 Nd8 Qc6+ Ka3 Qb5 Be8 Bd4 Rc5 Bfe5 Nec6 Bfd6 Ne6 f8Q Ncd8 Bf7 Rg8 Qe7 Rh8 g8Q Ng7 Qb7 Nde6 Bb8 Rc6 Bf4 Rc5 Bbe5 Rc7 Q7c6 Qd8 Qf3 Qg5 Qh3 Nc5 Bb3 Nce6 Qgf7 Rg8 Qh1 Qd8 Qfg6 Qd5 Rd1 e1Q Qgg5 Qf2 Re1 Qg3 Re4 Bf1 Nf2 Qe3 Qgg1 Bg2 Ng4 Qg3 Ne3 Qg6 Ng4 Qg5 Bd6+
1K2krn1/2P2p2/1pR1Q3/pP1bNr1B/1QQ2bq1/3q2BQ/1nB1Q3/3r1B1N b - - 0 1 illegal: No proof kernel
R3b2B/4pn1Q/1rq2QK1/b2BPB2/bPRr3B/2n1pq2/2kp3N/1R4RR b - - 0 1 legal: proof: e4 b5 d4 f5 h4 g5 hxg5 c5 dxc5 b4 e5 b3 Nc3 Nc6 Ne4 fxe4 axb3 Bb7 b4 Nb8 b5 Bc8 Kd2 Kf7 Ke3 Kg6 Kf4 d5 c4 h5 b4 a5 g4 h4 b6 a4 c6 a3 b7 h3 c7 d4 c5 d3 c6 a2 Bg2 h2 Nf3 Rh7 Qf1 Nf6 Rb1 Be6 c8R a1Q c7 Nc6 b8R Ra6 Ra8 Qd6 Bd2 Rb6 Be1 d2 Qa6 Kg7 g6 Bb3 Kf5 Rh4 g5 Ba4 Qf1 Nd5 Qa6 Kh8 g7+ Kh7 g8R Qc3 g6+ Kh6 g7 Nd8 Rcb8 Nf7 c8B Qe3 Bd7 Qe2 Rc8 Nc3 Rc4 Qc6 Be6 Qd1 Bh3 Rg4 Bd5 Kh5 Nh4 Qe2 f4 Qg2 Nf3 Rh4 Rf1 h1B Nh2 Qf3 Bf2 Rg4 Bh4 Bg2 Rh1 Bf1 Rd4 Bfb5 Rc4 Qc5 Rhf1 Be8 Rg1 Qd6 Rh8+ Qh6 g8Q Bg7 Rgc1 Bf6 Rh7 Bg5 Rg7 Qd6 Rh1 Qc6 Qh7+ Bh6 Bf6 Rh4 Rg8 Rg4 Rg5+ Kh4 Kg6 Kg3 f5 Kf2 Rbc1 Ke2 Rb1 Rf4 Rgg1 Kd3 Bg4 Kc2 Bh3 Qc5 Bg4 Rb5 Bh4 Qc6+ f6 Rb6 Bf5 Bg5 Qc8 Rg4 Qe6 Be3+ Bg5 Rf4 Bh4 Rb7 Qd6 Bb6 Qe6 Ba5 Qd6 Ng5+ f7 Rb6 Qf6 Rg4 Kg7 Rf4 f8B Nf7 Kg6 Rg4+ Bg5 Rf4 Bg7 Rh4 Bh8 Rf4 Bfe6 e3 Bh4 Rd4 Bf5+
3RN1Q1/2PBpp1b/kr3q1p/1QQKb3/1B2N1q1/5QbN/2r1N2P/nn5Q b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Bc8 fxg5 c5 b4 Nh6 b6 Ba6 b5 Ng8 Ra4 Bc8 Rb4 cxb4 Kf2 Kd7 Ke3 a5 Ke4 h6 g4 b3 d4 a4 c4 a3 c5 a2 d6 a1B b7 b2 c6+ Ke6 d7 Kd6 c7 Bg7 g6 Bf6 d5 Kc5 g5 Kb6 d6 Bc3 g7 Na6 b8Q+ Ka5 b6 Ra7 b7 Nb4 g6 Be1 Nh3 Nd5 Qa8 Qf8 d8Q Bg3 b8Q Ra6 d7 Ra7 Qbb7 Qe8 Nd2 Ra6 Bb5 Rh7 Qc6 Ne3 Qf3 Nc2 Rd1 b1Q Kd5 Bb7 Ne4 Bae5 Ba3 Qb4 Qdc8 Qa4 d8N Na1 Ne6 Rh8 Nd4 Nf6+ Kc5 Rg8 Qcf5 Qf8 Ne2 Nd5 Q5h5 Nc3 Rd8 Nb1 Kd5 Bc8 Qh1 Bf5 Qab7 Rh8 g8N Qg7 Ngf6 Rb6 Ne8 Qf6 g7 Bh7 g8Q Qb4 Qc5 Qa4 Q5f3 Rc6 Qce3 Rc2 Bd7 Qb4 Qc6 Qa4 Qcc5+ Ka6 Qec1 Qb4 Nef2 Qg4 Bb4 Qgg6 Ne4 Qg4 Qg7 Rg8 Qf8 Rg6 Qh8 Qfg5 Qg8 Rb6 Qc6 Qf6 Qce3 Nd2 Qec5 Nb1 Q6b5+
3nq1Q1/p4Q1r/RB1b3N/K1NP1p1r/6Q1/P1p2b1Q/N1k2n2/q1QRn2N b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 c5 gxh5 Qc7 b4 Qa5 bxc5 Qd8 c4 Qg5 Bg2 Qe7 c6 d5 c5 Qg5 Be4 Qf6 Bd3 Qd8 Bc4 dxc4 h4 Ke7 e4 Ke6 d4 g5 Kd2 f5 Kc3 b5 Kb4 g4 c7 g3 d5+ Ke7 c6 g2 e6 Kd6 e7 Ke5 h6 Bb7 c8N Bg7 e8Q+ Ne7 c7 Bf6 h7 Ba6 h5 Nd7 h6 Rg8 h8Q Nf8 h7 Rg5 Nc3 Ng6 Nh3 g1N Nb6 Nh4 c8Q Ng2 Nf2 Nh3 Nba4 Qd7 a3 Ne1 Ka5 b4 Be3 b3 Qg4 b2 Rd1 b1Q Na2 Qa1 Bc5 Rb8 Qeg8 Rb7 Rh2 Bg7 Nh1 Nf2 Rh6 Bb5 Ra6 Qc6 Qcf8 c3 Bb6 Be2 Nc5 Bf3 Qe8 Qc8 Qb5 Rd7 Qb1 Qf8 Qc1 Nc6+ Ka4 Nd8 Kb5 Nfd3 Ka5 Kd4 e5+ Be4 e6 Be5 Qh5 Bf3 e7 Kc4 e8Q Nf2 Qeg6 Qe8 Qg4+ Bf4 Q6h5 Rdg7 Qhh3 Rh5 Qe6 Rf7 Qhg8 Re7 h8N Reh7 Qgg3 Bd6 Nf7 Be2 Nh6 Bf3 Nb7 Kb3 Qg3g4 Rg5 Qef7 Rh5 Qcg5 Kb2 Nc5 Kc2 Qc1+
1N1B1b2/p3n3/Qb1N1bb1/B4qB1/P3n2K/1p1r4/rPk2pBR/1B2QNN1 b - - 0 2 illegal: No possible last move
3QQb1B/1kBB1NQr/2qpp1R1/8/Q2P3r/b2KB2n/p3P1n1/3R1rBr b - - 1 2 legal: proof: c4 b5 a4 g5 axb5 g4 b4 g3 b6 Nf6 b5 Nd5 b7 Nf4 b6 Nd5 fxg3 Nf6 g4 Ng8 g5 Bg7 Ra2 Bh6 Ra1 Bf8 g4 h6 g6 d6 Nc3 Bf5 Ne4 Bd7 Ng5 Bb5 cxb5 Nc6 N5f3 Nb8 g5 h5 Ne5 Nf6 Ng4 hxg4 Ra6 Ng8 Ra5 Nh6 Ra1 Ng8 d4 Kd7 Kd2 c5 h4 a5 g7 f5 h5 g3 h6 c4 g6 c3+ Kd3 f4 h7 g2 Qa4 c2 Nf3 g1R Be3 c1B Ng5 f3 Rh6 f2 Nf7 Na6 b8B Kc8 Bh3+ Kb7 Bc7 f1R Bd7 Qc8 Bd8 e6 Bdg5 Ne7 g8Q Nd5 g7 Rh1 Bg1 Nac7 B5e3 Ra7 Rg6 Ba3 Rd1 Nf4+ Kc3 Nh3 Kd3 Be7 Qe8 Nd5 g8Q Bf8 Qg7 Qc6 Qd8 Rg8 h8B Ndf4+ Kd2 Ng2 Kd3 Bc5 Qc2 a4 Qe8 a3 Qa4 a2 Qd8 Qc8 Qe8 Ka8 b7+ Kb8 Qd8 Ba3 Qe8 Kc7 b8B+ Kb7 b6 Qc5 Bc7 Qc6 Qh7 Rg7 Qh6 Rh7 Qg7 Ra5 Qd8 Ka6 b7 Rh4 Qc2 Rah5 b8Q Rh6 Qe8 Rh7 Qbd8 Kb7 Qa4
1QB1Rq1B/1Q2b3/pp2br2/r3B1nn/QRP3BQ/1P1pQ2n/3n2k1/2K2N2 b - - 0 1 illegal: No proof kernel
r6N/B1Q3Rp/1Q2Nr1b/K2pn3/5pBk/3bnr2/N2PB2P/1rNB1Bq1 b - - 0 2 legal: proof: b4 c5 bxc5 b5 e4 f5 a4 Qc7 axb5 Qd8 f4 g5 Ra4 Qb6 exf5 Qc6 f6 Qc7 f5 Qd8 Rf4 gxf4 g4 Kf7 c4 e5 b6 a5 b7 e4 c6 d6 g5 e3 c7 a4 c5 a3 c6 e2 g6+ Ke8 g7 Kf7 Qb3+ Be6 c8B a2 c7 a1R Ba3 Na6 b8Q Nh6 g8B+ Ke8 f7+ Ke7 Q3b6 Kf6 Bc5 Kg5 f6 Be7 f8N Bf5 f7 Ng4 Ne6+ Kh5 f8N Qd7 Ng6 Ra4 Nc3 Qb5 Na2 Nb4 Ba6 Bd8 c8B Nd5 Q8c7 Ra3 Bf7 Rg8 Nh8+ Kh4 Bh5 Ne5 Kf2 e1R Ne2 Re8 Rg1 Bd3 Nec1 Qb1 Rg7 Rf8 Bd1 Ne3 Bd7 d5 Bd4 Bc2 Bae2 Bg5 Nb3 R3a7 Bh5 N3c4 Bdf3 Bd3 Bb5 Bg6 Qbc6 Rac8 Bh3 Rb7 Ba7 Bd8 B5g4 Rf1+ Ke2 Ne3 Ba4 Rb4 Q6b6 Bg5 Bb5 Ra8 Bhg2 Qc2 Bd3 Qc4 Nbc1 Bh6 B2h3 Rf6 Bhg2 Qd4 Bc2 Nf5 Bd1 Qg1 B2h3 Nf7 Kd3 Ne3+ Kc3 Bd3 Bfe2 Rb1 Bg2 Rf3 Bgf1 Ra1 Kb4 Rb1+ Ka4 Ne5 Ka5
2rQ2n1/1R2N1pB/Br2k3/R1Q2pRp/3B1Pn1/1r3PpR/6b1/q1BBK1b1 b - - 0 1 illegal: Other
1Q3KR1/1R1p2pN/b1p5/3B1Q2/nrN2p2/n2QNQ2/1Q1P1P1r/1Nqk2bn b - - 0 2 illegal: No possible last move
rk1BQ1Q1/1P2nRB1/3nbp1R/NB5q/7p/1p1rpPb1/Q1Q5/1nB3KQ b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 h4 Bc8 hxg5 c6 b4 Kd7 b6 Ke8 Nc3 c5 b5 Bg7 Na2 Bf8 Nb4 cxb4 c4 Kd7 d4 a5 g4 h5 g6 e5 g5 e4 b7 Kc7 b6+ Kd6 c5+ Kd7 c6+ Kd6 g7 e3 g6 a4 f3 a3 c7 a2 Bb5 Na6 Kf1 Nc5 b8Q Be7 Ne2 Bg4 c8Q+ Qc7 Kg1 Nh6 g8Q Bd8 g7 Ra3 Qe8 b3 g8Q Ra8 Qa7 Ne4 b7 Qb6 Qcc2 Be6 Rh4 Be7 Rf4 Nf5 Rb1 a1N Qaa2 Qc6 Qe1 Kc7 d6+ Kb6 d5 h4 d7 Kc7 d8B+ Kb8 d6 Qd5 d7 Bd6 Nd4 Ne7 Rf6 Qc5 Rh6 Qh5 Qf1 Bc7 Qh3 Bg3 Qh1 Nd6 Ba5+ Nec8 d8B Ne7 Bc3 Rh7 Ba3 Rg7 Rd1 Rg5 Bc1 Rd5 Nf5 Rd3 Bg7 f6 Rd2 Rc3 Rd5 Rd3 Nd4 Nc4 Rd7 Nd6 Qc6 Nc2 Qe4 Nec8 Rf7 Na3 Q4c6 Nb1 Qcc2 Be5 Be7 Bg3 Nc6+ Kc7 Na5+ Kb8 Bd8 Ne7 Qch2 Nc3 Qhe2 Nb1 Qec2
4B1rQ/R2n2qN/2Kp2Rn/2pP2bk/R5rQ/1R1qp3/p1Q3P1/2R1Qb1N b - - 0 1 illegal: No proof kernel
q1BB2R1/1N2q2P/1N1B4/B2r1pQ1/2p1np2/2Qb4/pb3Pr1/1NnkB1NK b - - 0 1 legal: proof: c4 b5 b4 h5 a4 d5 cxd5 h4 axb5 h3 Ra6 Nh6 Rf6 Ng8 gxh3 exf6 h4 f5 h5 f4 h4 Ke7 d4 Kf6 e4 c5 d6 g5 h6 a5 e5+ Kf5 h5 Ke4 e6 f5 d7 a4 e7 a3 e8N g4 h7 g3 b6 a2 b7 g2 h6 Qe7 d8B Bg7 d5 Qh4 b5 Qh3 d6 Qc3+ Bd2 Bd7 b6 Bf6 Qg4 Ra4 Ba6 Nc6 b8N Qf3 b7 Na5 Qg5 Nb3 B8a5 Bb5 d7 Kd3 d8B Kc2 Nd7 Rd4 b8B Qa8 Bd6 Bd3 Bc8 c4 Nb6 Rd5 Rh3 Bg7 Rg3 Nf6 Rg4 Rf8 h8Q Rg8 h7 Ne4 B2b4 Kc1 Rg3 Bb2 Qc3+ Bc2 Ke2 Rg7 Kf3 Kd1 Be5 Nc1 Nd6 Bd3 Nb7 Rg6 Bed6 Rg8 Qh8 Rg7 Be1 Rg6 Qc3 Rg8 Ne2 g1Q Rg2 Qh1 Ng1 Qh4 Rg3 Rg7 Kg2 Rg6 Qgf6 Qg5 Kh1 Rg7 Qh6 Qe7 Rg6 Rg8 Qg5 Rg7 Rf6 Rg6 Rf8 Rg7 Rg8 Rg6 Qh4 Rg2 Qg5
R5Rq/2R5/2BnqBkB/2P1q3/1r1N1nPK/2bR4/1rN1rB2/2R2qBb b - - 0 1 legal: proof: d4 b5 g4 g5 a4 f5 axb5 c5 dxc5 h5 e4 h4 exf5 Qc7 Qd6 Qb6 f4 Qc7 fxg5 Qd8 Qg3 hxg3 c4 Kf7 b4 d5 h4 e5 b6 a5 g6+ Kf6 b7 g2 Kf2 a4 Kg3 e4 c6 d4 h5 d3 b5 e3 h6 e2 c5 e1R h7 d2 c7 d1Q b6 a3 g7 a2 Rh3 Bd6+ Kh4 Bf8 Na3 Q1d7 Rd3 Na6 b8B Ne7 g8R Nb4 b7 Bg7 Nf3 g1Q Bh6 Nbd5 Nc2 Ra4 Bg2 Rb4 Rc1 a1Q Nfd4 Nf4 Bc6 Kf7 f6 Kg6 f7 Qf1 f8R Qe6 Rf7 Re2 Rff8 Bd7 c8R Qc7 Rf7 Qce5 Bd6 Rb2 Ra8 Nc8 b8B Be8 Be7 Nd6 Bf6 Bd7 Re7 Bc8 Rc7 Bb7 Re8 Rf8 h8B Rf7 Rg8 Rf8 Ba7 Rb8 Bb6 Rb4 Ba5 Rb2 Be1 Rb4 Bd7 Bh1 Bc6 Rb2 Bf2 R8b4 Bg1 Be4 Nf3 Q5d5 Bfd4 Rb1 Ng5 Bh1 Bde3 Qaf6 Bef2 R1b2 Rgd8 Qf8 Nf3 Bc3 Nfd4 Qde5 Bf6 Qh8 Rg8+
1Nr5/1q2BBb1/np4R1/1r1N3K/R4B1n/1Pr2kq1/b1bP1N1q/B3BNN1 b - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Rh7 Qc2 Rh8 Qb2 axb2 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 f4+ Ke4 a4 c5 h4 g5 h6 e5 d6 c4 a5 c3 h5 c2 a6 b6 h7 Nd7 a7 Rb8 a8N Bb7 f6 Qc8 h6 Qc7 f7 Re8 f5 Qc8 f6 Qc4 Ra4 Be7 f8N Bd8 f7 Re7 Kh5 g4 Ne6 g3 f8N g2 Nec7 Nb8 d7 Na6 Nd5 Re8 Nac7 Ne7 Ne3 Nf5 Ncd5 Bf6 d8B Bg7 Bc7 Nh4 Nd7 Rc8 Nb8 Rhf8 h8B Rf5+ Kg4 Qb4 Bc4 Qe7 h7 Bc6 Bd6 Qb7 Nf1 Be8 Bc5 Bg6 Bf2 Rh5 Be1 Rf5 Na3 b1B Nb5 Ba2 Ba3 c1R Be7 Rc3 Rh3 Rh5 Rg3 Rf5 Na3 Rh5 Nc2 Rf5 Ncb4 Rh5 Nh3 g1Q Nd3 Qh2 Ng1 Bh6 Bhf6 Bg7 h8B Bh7 Rg2 Rf5 Bg5 Bg6 Ne2 Bh7 Kh5 Kf3 Ra5 e4 Ra4 e3 Nf2 Re5 Rg4 Bf5 Bf4 Bc2+ Rg5 Rf5 Nc7 Re5 Bf7 Rb5 Nd5 Bf8 Neg3 e2 Bhf6 Bg7 Rg6 R3c5 Ba1 Rc3 Ngh1 Rb4 Nh3 Rb5 Bf2 e1Q B2g3 Qee2 Be1 Qeg2 N1f2 Qgg3 Ng1+
1N1K3b/pB4r1/BN1N1p2/1Rb3BN/PB1r1P2/n7/BbNq1k1b/4Rnq1 b - - 1 2 legal: proof: e4 c5 g4 h5 b4 d5 bxc5 f6 exd5 Bf5 g5 Bg6 Qg4 Bf7 g6 hxg4 gxf7+ Kd7 Ke2 e5 Ke3 b5 Ke4 g5 Kf5 b4 c4 e4 d4 e3 a4 g3 h4 b3 c6+ Kd6 c7 g2 c8B g4 c5+ Kc7 Ke6 b2 d6+ Kc6 h5 e2 d7 e1B d5+ Kc7 d6+ Kc6 h6 g3 h7 Ne7 Bfa6 Bc3 Na3 b1Q Nc2 Be1 Bg5 Qb2 f4 Qbb6 Ne2 g1B Rh5 g2 Ng3 Rg8 h8N Bg7 f8N Bh2 Nf7 Bc3 Re1 g1B Bc4 Na6 Ba2 Nb4 Ba6 Qe8 d8B Bb2 d7 Bh8 Bc7 Qd8 Bd6 Nf5 Be7 Bf2 Nd6 Ne3 Kf7 Nf1 Ke6 Kc7 c6 Rg7 Bb7 Qc5 Ba6 Kb6 c7 Qd4 c8B Kc5 Bcb7 Qb6 d8N Qd2 Nc6 Rd8 Nb8 Be3 Na1 Kd4 Nfd7 Nc2 Bf8 Qc5 Nb6 Na3 Nc2+ Kc3 Ndc8 Rd4 Nd6 Beg1 Be7 Bf2 Kd7 Be3 Nc4 Kd3 Kd8 Bf2 Rh4 Bfg1 Nh5 Be3 Rg4 Bf2 Rg1 Be3 Rb1 Ke2 Nb6+ Kf2 Rh1 Ng3 Rhe1 Nf1 Bh6 Qg5 Bf8 Qg1 Bg5 Rd5 Be7 Bc5 Bf8 Rd4 Be7 Ba1 Rb5 Bb2 Bf8 Re4 Be7 Bcd4 Nf7 Be3+ Bd6 Bed4 Bb4 Bc5+ Nd6 Rc4 Ra1 Rd4 Re1
Q1kqr2N/2r5/rP2rp1q/3Q4/BQbQ4/2KR3B/3P1R2/B1B1Rn1n b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 f4 d5 fxe5 b4 c4 b3 cxd5 Kd7 a3 Bb4 axb4 Ke8 b5 Ke7 Nc3 Ke8 Na4 Bh3 Nb6 Bg4 Nc8 Bxc8 h4 Kd7 e4 g5 h6 c5 a6 c4 h7 b2 a7 b1Q b6 c3 d6 c2 e6+ Ke8 e5 g4 d7+ Ke7 h5 g3 h6 g2 Nf3 g1R Nh4 Rg7 Ke2 Nc6 Kd3 Rg5 Ra3 Ba6+ Kc3 Bd3 Qg4 Na5 Rh2 Qa2 Bh3 Qd5 Rf2 Rg6 Qb4+ Qd6 Rb3 Bc4 Ra3 Rb8 a8Q Nf6 Rb3 Rhg8 h8B Ng4 h7 Re8 Bg7 Rb7 h8Q Ra7 Ra3 Ra6 Qd5 Qc8 Qd4 Rh6 Ng6+ Kd8 Qf8 Qdc6 Nh8 Qh1 Qfc5 Rf6 Qcd5 Qb8 Rf1 Nf2 Qa8 Qh2 Qad5 Nh1 Rf2 Be2 Qa8 Nc4 Qad5 Qd6 Ra1 Ne3 Rb1 Ke7 d8R Bc4 Ra1 Qc5 Rd6 Qc8 Rb1 Qd7 Ra1 Kd8 e7+ Kc8 e6 Qd8 Rd7 Rg8 e8B Nf1 e7 Re6 Rd6 Qf4 Ba4 Qh6 e8Q Rf8 Be5 f6 Qec6+ Qc7 Qa8+ Qb8 Bb2 Re8 Re1 c1R+ Bc2 Rca1 Bc1 R1a5 Ba4 Rc5 Rd7 Rcc6 Rg7 Rc5 Rg3 Rc7 Rd3 Rd7 Qf4 Kd8 Kc2 Qc8 Ba1 Qb8 Qa7 Qd6 Qh4 Rc7 Kc3 Kc8 Qhd4 Qd8 Qaa8+
K4b1R/1P3q2/NPkN2QB/3Qqrq1/1q1bR1R1/qp4N1/b4Q2/Q6N b - - 0 1 legal: proof: e4 d5 a4 b5 g4 h5 gxh5 f5 exf5 a5 c3 b4 c4 Ra7 Qb3 Rb7 Qd1 Rb5 axb5 Rh6 Bg2 Rh7 Bf1 Rh8 c5 a4 b6 a3 b3 Nd7 Bd3 Ngf6 Bc4 dxc4 b7 Nb6 cxb6 Nd7 Nc3 Nc5 Nb1 Na4 bxa4 Be6 Qg4 Bd7 Qd1 Bc8 Ke2 Kd7 h4 c5 f4 e5 d4 g5 h6 e4 f6 e3 d5 b3 h5 c3 Kd3 g4 Kc4 e2 Kb5 e1Q Ka6 g3 Ka7 g2 f7 c4 f5 a2 a5 c2 h7 c3 f6 Bc5 f8Q Qe3 h6 Qde8 a6 Qd2 f7 Qe6 d6 Rg8 h8R Rg4 h7 Rg6 Nh3 g1Q Qg7 Qee1 f8Q+ Qe7 Nf2 Qd5 Rh4 Qc4 Bh6 c1Q Nd2 c2 Rg4 Qd4 Ka8 Rf6 a7 Qc4 Qg6 Qb2 Nf1 c1Q Nh1 Qce3 Qd5 Rf5 Re1 a1B Nfg3 Q3e5 Ree4 Qb4 Qff6 Qgc1 Qh4 Qf8 Qh2 Qg5 Qf2 Kd8 d7 Q2a3 Rd4 Ke7 d8N Qf7 Rde4 Bad4 Ne6 Bd7 Nc7 Bb5 Na6 Bd3 Rg8 Bd6 h8N Kd7 Re8 Bb1 Rb8 Qfe7 Nf7 Ba2 Rh8 Q7f6 Qa5 Bf8 Nd6 Qf7 Qd5 Be3 Kb8 Bd4 a8Q Qee7 Qa7 Qe5 Ka8 Be3 Qd4 Kc6 Qa1 Bc5 Qb8 Be3 Qd8 Bd4 Qd7+ Kd5 Qde6+ Kc6 Qd5+
b5q1/1N2B3/1pr2rN1/1K4n1/1B1B1r1p/2P2P1Q/B2k1r2/NQQN1Rq1 b - - 0 1 legal: proof: d4 a5 b4 c5 dxc5 f5 bxa5 f4 a4 b6 a6 f3 a5 Qc7 a7 Nc6 a6 Qd8 exf3 Na5 f4 Nb7 f5 Qc7 Ra2 Qd8 Ra5 Kf7 Ra1 Ke8 axb7 g5 f3 g4 Ra4 g3 Rd4 Bg7 Rd2 Bf8 h4 Bh6 Rf2 Bg7 Kd2 gxf2 g4 Kf7 g5 Ke8 g6 Bd4 Na3 Bf6 Nb1 Bg5+ hxg5 Nf6 Rh6 Ng8 Rh2 Kf8 Rh1 Ke8 Kc3 e5 Kb4 Ke7 b8B h5 c6 d5 c7 Kd6 c3 h4 g7 d4 f6 Kd5 f7 e4 f8B e3 g6 e2 Be3 e1Q Nd2 d3 Bd4 Qe5 Nb3 d2 Qb1 d1R Na1 Qe1 Kb5 Bg4 c8N Ne7 g8N Be6 g7 Nc6 Be7 Rh6 Nd6 Rf6 Nh3 Ne5 Nb7 Nf7 Bbd6 Ng5 Bb4 Rc8 a8Q Rc6 Qa3 Qc8 Be2 f1R Nf2 Rd2 Nd1 Rf2 Bd3 Qg1 Bg6 Rde2 Bh5 Re4 Bf7 Qh2 Rf1 Qg1 Nh6 Qf8 g8Q Ref4 Ng4 Qg7 Qc8 Qg8 Ka4 Kc4 Ne5+ Kd5 Ng6 Kc4 Qd7 Bd5 Qe6 Nh7 Qh3 Ng5 Nc2 Kd3 Kb5 Be4 Ba2 Kd2 Na1 Rc8 Nd8 Ba8 Nb7 Rcc6 Qac1+
bN2QQR1/b2B1qp1/4Q3/3P3k/1pN1Q2N/2pKR2R/r2n3P/2R2rb1 b - - 0 1 legal: proof: b4 a5 g4 f5 c4 b5 a4 d5 cxd5 h5 gxh5 Na6 e4 Nb8 exf5 Ra6 Bb2 Rc6 Be5 Rc1 Bc3 Nc6 bxa5 b4 Bb2 Na7 Bf6 Nb5 axb5 Rc5 Bb2 Rc3 Bc1 Rxc1 Ke2 Kf7 f4 c5 d4 e5 h6 e4 a6 c4 f6 Kg6 h7 c3 f7 e3 b6 Bf5 d6 Qb8 d7 Be7 f8Q Bd8 b7 Bc7 d8R Bg4+ Nf3 Bd7 f5+ Kh6 a7 Be6 a8Q Bd7 f6 Ne7 f7 Qc8 b8N Bb6 Qe1 Ng6 Qe4 Ne5 d5 Bc6 Bh3 Qf5 Qe8 Ba8 f8Q Nc4 Nbd2 Ba7 Nh4 Qf7 Bd7 Kh5 Kd3 e2 Rg1 Rc2 Rg3 Ra2 Rc1 Rg8 Re3 Rh8 Qf2 e1B Qf6 Bf2 Qfe6 Bg1 Rc8 Na5 Nc4 Nb3 Qc5 Rf8 h8R+ Kg5 Rg8 Nd2 Rh3 Kh5 Rc6 Qg6 Rc7 Rf6 Qcf8 Rf1 Rc6 Qf7 Ra6 Rc2 Raa1 Rb2 Re1 Rc2 Ree3 Ra2 Rc1
N2k1N2/3R1r2/1bp4p/1NRrRQ1P/1b1pQ1rP/4B3/K1pQr1N1/7R b - - 0 1 legal: proof: g4 b5 b4 f5 c4 f4 h4 f3 c5 Bb7 exf3 Qc8 f4 Bd5 f5 Bb3 axb3 Qa6 Bd3 Qg6 Bc4 Qh5 gxh5 c6 d4 bxc4 b5 Kf7 b4 Nh6 b6 Rg8 d5 Rh8 b5 Ng4 d6 Ke8 b7 Ne3 b6 Na6 b8N Nc7 dxc7 Nd5 b7 Nb6 cxb6 Kf7 Qd3 Ke8 Qd6 Kf7 Qd1 Ke8 Kd2 a5 Kc3 e5 Kb2 d5 c8R+ Ke7 f4 g5 f6+ Kd6 f5 g4 f7 Ke7 Na3 d4 Be3 g3 Nf3 h6 Ne1 e4 Ng2 c3+ Ka2 a4 Nd7 c2 b8Q Ra5 b7 Rh7 Rc7 Rd5 Nb5 a3 Qd2 Rg7 Qa7 Kd8 f6 Bc5 f8N Bb6 f7 Rg4 Rae1 Rg7 Ka1 a2 Qa3 Rg4 Qad3 Rg7 Kb2 a1B+ Ka2 Bc3 Q3e2 Bb4 b8R+ Ke7 Rbb7 Kd8 Ra7 Rh7 Ra3 Rg7 Rc3 Rg4 Rc5 Rg7 Bf4 e3 Qg4 e2 Be3 Rh7 Qe4 Rg7 Ref1 e1R Rf5 Re2 Re5 Ba7 Nb6 Rh7 Ne1 g2 Na8 g1R Rce7 Rg4 Ng2 Bb6 Rd7+ Kc8 Ng6 Bd8 f8Q Rf7 Qe7 Bb6 Qf6 Ba3 Qff5 Bb4 Rc7+ Kd8 Nf8 Rf6 Rb7 Rf7 Rd7+
5q2/QBn4b/3Pn1kr/3Qn2R/b1q4R/1B2rQ2/NB2P2K/1rqR1RB1 b - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 fxe5 Bd6 cxd5 Bb4 g3 Bf8 Nh3 h5 Na3 f4 Ng1 f3 Nc4 Be7 Ne3 Bg5 Ng4 Bf4 gxf4 hxg4 Kf2 Kf7 Kg3 g5 h4 c5 d4 a5 b4 a4 b6 c4 b5 c3 b7 c2 e6+ Kg6 b6 f2 h5+ Kg7 f5 a3 h6+ Kh7 d6 a2 d7 Ne7 d5 Qe8 d8R Nec6 f6 Ra3+ Kh2 Re3 f7 Qf8 e7 Ne5 e8B Bd7 Nf3 Kg6 h7 Bb5 Bb2 c1Q Nd4 Ba4 Nc2 Na6 b8Q Nc7 Nb4 Qc4 Bg2 f1B Rc1 a1N b7 Nb3 Na2 Nc5 Qa7 N5e6 b8B Qfc5 Bf3 Qf8 d6 Bg2 Bb7 Bd5 Rf1 Be4 Qd5 Bd3 Rcd1 g3+ Kg1 g2 Kh2 g1R Rd7 Rg8 h8R g4 Rh4 Rh8 Re7 Rh6 Bb5 Qd8 f8Q Bdc2 Qf2 Qf8 Qff3 Bd3 Rh7 g3+ Kh3 g2 Kh2 Kg5 Rh8 Bh7 B5a6 Kg6 Rh5 Qc5 Bc4 Qc6 Bb3 Qc4 Rf2 Re1 Rf1 g1Q+ Kh3 Qgg4+ Kh2 Qc1 Rh4 Nb5 Bc7 Qgc4 Bb6 Nbc7 B6d4 Rd3 Bg1 Re3 Rd3 Q1c3 Rd2 Rb1 Rdd1 Qc1 Rh5 Qd8 Rf8 Qa8 Rf4 Qf8 Rfh4
Rr1bb1NK/1qnR3Q/1bB2n2/1R1PQ3/n2NQN2/Q2Rb2r/P7/3k3r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 h6 g4 Bg7 g6 Bf8 g7 Qd7 Kf2 Qd6 Ke1 Qd8 g5 Na6 g6 Rh7 Bb2 Rh8 Bf6 Nb8 Bg5 hxg5 Ke2 Kd7 Ke3 Kd6 Kd4 b5 h4 b4 a6 b3 a7 b2 h5 g4 h6 g3 h7 g2 f6 Qd7 f7 Nf6 g8Q Na6 g7 Rb8 Na3 b1N a8R Nc3 Rh5 Na4 Ne2 g1R d3 Rh1 Qe1 e6 Rf5 Be7 Nf4 Bd8 f8Q+ Qe7 Bh3 Bd7 Bg2 Be8 Rd1 c6 Nc2 Nc7 Qe4 c5+ Ke3 c4 d4 e5 Rd3 c3 Kf3 Nh5 Kg4 Nf6+ Kg5 Rh3 Qgf7 Rh1 Kg6 Rh3 Na3 c2 g8N c1B Kg7 Be3 Nc2 Rh1 Qf3 e4 Rh5 Kd7 d6 Kc6 d7 Qb4 Q7e7 Qb7 Qe5 Kb6 Qa3 Kc6 Nd5 Kb5 Nf4+ Kc4 Rg5 Bc1 Qe2 e3 Bc6 Bd2 Qf3 e2 Qfe4 e1B Rh5 Bf2 Rg5 Be7 d8R Bde3 Rd7 Bd8 d5+ Bd4 Rg1 Be3 Rb1 Rh3 Rb5 Rh1 Qg6 Bb6 Nd4 Bd2 Rg3 Be3 Qge4 Rh3 Qae7 Kc3 Qa3+ Kd2 Rf3 Kd1 Rg3 Bc1 Rd3+ Bd2 Ne7 Rf8 h8Q Rh1 Qh3 Rh8 Ng8 Rh4 Qhf5 Rh5 Qh7 R5h3 Re3 Bc1 Kh8 Bd2 Rc3 Be3 Rd3+
2n3b1/7q/1NkrQ2q/7r/2qn1nNP/1NBB3R/1Q1N3P/BnQ1BbK1 b - - 0 1 legal: proof: b4 e5 c4 d5 cxd5 b5 f4 h5 fxe5 Nh6 a4 Rh7 axb5 Ng8 g3 Be7 Ra3 Bh4 gxh4 Rh6 Rg3 Rh8 Rg4 hxg4 Kf2 Kd7 e4 c5 d4 f5 b6 a5 b7 g5 d6 a4 d5 a3 b5 f4 b6 f3 Bb2 c4 Bc3 a2 Ne2 a1N Nc1 g3+ Kg1 g4 Bd3 g2 Nd2 Ra7 Ncb3 Nc2 Qc1 Nc6 b8Q Na3 b7 Ra6 Ba1 c3 e6+ Ke8 e5 c2 e7 Kd7 e8N Nd4 Bc3 Qg5 Ba1 Ne7 e6+ Kd8 d7 Rh5 Nf6 Nb1 Qe5 Qh6 b8N Rd6 Bc3 Kc7 d8B+ Kb7 Bda5 Bd7 Bab4 Nc8 e7 Be6 e8Q Bg8 Q8e6 Qh7 Nbd7 Kc7 Kf2 g1N Nb6 Nge2 Re1 Nf4 Re3 g3+ Kg1 g2 Ng4 Qh6 Ba1 Qh7 Bbc3 Kb7 Qf1 c1Q Qh8 Qc2 Qc1 Kc7 Bb4 Qc4 Bbc3 Rc6 d6+ Kb7 d7 Rd6 d8B Kc6 Na8 Qh6 Bda5 Qh7 Kf2 Qh6 Nb6 Qh7 Kg3 f2 Qhf6 f1B Kf2 Qh6 Rh3 g1Q+ Ke1 Qh1 Kf2 Qf3+ Kg1 Qe4 Qfe5 Qeh7 Qb5+ Kc7 Qb4 Kb7 Qba3 Kc7 Qab2 Kc6 Ne4 Bf7 Be1 Bg8 Ned2 Ng2 Bb4 Nf4 Bc3
n5R1/2n1B3/Rq1rnr1R/7N/5b1r/1Q1QP3/NQN2nKP/1Rqk1n1Q b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Be6 Bh3 Bf5 gxf5 Qe7 Bg4 hxg4 Qb3 Qd6 Qd1 Qd8 Kf2 Kf7 d4 c5 b4 a5 f6 Kg6 f7 Kf5 e6 Ke4 e7 g5 e8R+ Ne7 e3 a4 b6 f3 b5 a3 b7 g3+ Kf1 a2 d6 c4 d7 c3 d5 g2+ Kf2 g4 d6 g3+ Ke1 c2 b6 Rh4 Ba3 c1Q Ne2 g1N Kf1 f2 Nf4 Nh3 Kg2 f1N Nh5 Bh6 f8N Nf2 Ne6 Na6 b8Q Nc7 b7 Nc8 Rg8 Nb6 Nd4 Ra6 Nc2 Bf4 Bc5 Qf6 d8R Nba8 d7 Rd6 Rh8 Qfb2 Rdg8 Qb6 Rh6 Rf6 Qf3+ Kd3 Nc3 Kd2 d8Q+ Rd6 Rb1 a1N Na2 Nb3 Ba3 Nd4 Ra1 Rd5 Be7 Nde6 Qe4 Kd1 Rb1 Rd2 Qdd3 Qd4 Rb6 Qc5 Ra6 Qb6 Qb3 Rd6 Qd8 Nd5 b8Q Ndc7 Kf3 g2 Qc6 Rd2 Qdd3 g1R Qbb7 Rgg4 Qcc3 Rg2 Qcb2 Rg6 Rg1 Rf6 Kg2 Nd4 Qc6 Nde6 Bf8 Qa1 Qdd5 Ke2 Be7 Ng3 Qcd7 Qd1 Q5d6 Rd5 Rh1 Qd2 Ra1 Qc1 Rb1 Rd3 Qdb4 Kd1 Qdb5 Rd2 Q4c4 Rd6 Qf1+ Kd2 Qg1 Nf1 Qh1 Kd1 Q5d3+
2q2r2/3rP1rQ/3q3R/2qn1n2/KQ2RPQn/N6B/2BBbBr1/R2R2k1 b - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 fxe5 Bd6 cxd5 Bb4 g3 Bf8 Nh3 h5 Na3 f4 Ng1 f3 Nc4 Be7 Ne3 Bg5 Ng4 Bf4 gxf4 hxg4 b4 Kf7 e4 Kg6 h4 Kh5 d4 g5 Kd2 c5 Kc3 a5 Kb3 c4+ Ka4 c3 b6 c2 b5 g3 b7 Kg4 e6 g2 e5 Kg3 b6 Kf2 h5 g4 e7 g3 e8B Qg5 d6 Na6 b8Q Bf5 e6 Qg4 e7 Rh7 b7 Nc7 d7 Nd5 d8B Rg7 h6 Bd3 h7 Qc8 h8Q Nh6 Qh7 Nf5 Rh6 Be2 Bd2 c1Q Bg6 Q1c5 Bc7 Nh4 Bc2 Qd6 Bb6 Ra7 Bc5 Ra8 Bcb4 Ra7 Qc7 Ra8 b8R Ra7 Qc3 Rd7 Ka3 a4 Ra8 Bd3 Ne2 g1Q Bh3 g2 Qb2 Bc4 Nc3 Be2 Be1+ Kf1 Nb5 Qe3+ Qb3 f2 Ra6 Kg1 Ra8 Nc7 d5 f1N Qc3 Qec5 Bd2 Qg6 d6 Nd5 Be1 Ng3 Ra7 Rc7 d7 Qgd6 d8R Ngf5 Ra6 Rb7 Re6 Rd7 Re4 Bd3 Qg4 Be2 Kb2 a3+ Kb3 a2 Ka4 Qe3 Na3 Qec5 Rd1 a1R Rh8 Ra2 Qb2 Rg8 Bbd2 Rf8 Ra7 Kh2 Qb4 g1R Qhg8 Rg2 Rh6 Kg1 Qh7 Rb2 Ra6 Rb3 Ra7 Rbg3 Nc4 Nc7 Qgg7 Nb5 Ka5 Rg5 Ra6 Rh5 Qg4 Rg5 Ra7 Qcd4 Ra6 Nc7 Ra8 Nd5 Kb5 Qg6 Raa1 Qdc5+ Ka4 Qgd6 Na3 Rg7 Bf2+
k4N2/3nQB2/Nb1Qn3/4bN1r/B7/NRp1nP1r/PB1n1B1n/1qQ4K b - - 0 1 legal: proof: g4 f5 gxf5 a5 f4 d5 c4 h5 cxd5 a4 Na3 Bd7 b3 Bc6 bxa4 Bb5 a5 Ba6 Rb1 Bc4 Rb3 Bb5 Rg3 Ba4 Rg4 hxg4 Bg2 Bc2 Bh3 Be4 Bf1 Bf3 exf3 Rh3 Nb5 Rh5 Na3 Rh8 Kf2 Kd7 Kg2 Kc8 h4 c5 d4 e5 h5 b5 h6 Kb7 d6 g5 d5 e4 f6 c4 f7 c3 d7 e3 d6 e2 f5 g3 h7 g4 f6 b4 Bb2 b3 Qc1 Bg7 f8Q Qb6 d8Q Nh6 f7 Be5 Qde7+ Nd7 a6+ Ka7 Rh5 e1N+ Kh1 Nc2 Bb5 Ne3 Ba4 Rd8 Rg5 Ka8 a7 Qb4 Ne2 g2+ Kg1 Qe4 Nd4 Qb1 Nf5 Rb8 Qfd8 Rc8 Qb6 Rc5 f8N Rb5 Qd4 Rd5 Qf4 Rc5 Kh2 g1N Kh1 g3 Qd4 Nhg4 Qdd2 Nb8 d7 Ne2 d8N Nh2 Nb7 Nf4 Qdd6 Nd7 Rg7 Rd5 Nc5 Ne6 Na6 Ra5 Rg4 Rb5 Rb4 Rd5 Ba1 b2 Rb3 g2+ Kg1 Rg8 h8B Rg3 Bf6 Rh3 Bh4 Qc2 Bg3 b1N Bb2 Nd2 Bf2 Qb1 Nd4 Rb5 Nf5 Kb7 a8B+ Ka7 Be4 Rd5 Ng3 Ka8 Bg6 Rc5 Nf5 Rd5 Be1 Ra5 Bf7 Rd5 Kf2 g1B+ Ke2 Rd4 Rb7 Rdh4 Rb3 Nec4 Bg3 Bb6 Bf2 Rh5 Ke1 Ng4 Ke2 Ne4 Kf1 Ned2+ Kg1 Nh2 Kg2 Ne3+ Kh1
1N2nr1n/3Bpb2/2QRPNQ1/2n2r1R/1nK1N3/k1N2Qb1/4P1QR/1n3q2 b - - 0 1 legal: proof: b4 b5 c4 a5 f4 h5 a4 d5 cxd5 Bd7 g4 Nf6 gxh5 Ng8 Ba3 Bc8 axb5 Be6 b6 Qd6 b5 Qe5 fxe5 Bc8 Bb4 axb4 d4 Kd7 Kd2 g5 Kd3 f5 h4 c5 b7 b3 d6 g4 d5 g3 b6 g2 h6 f4 h5 b2 h7 f3 h6 f2 Nh3 g1N Ra6 Ra7 Kc4 Bg7 Qb3 Nc6 b8N+ Ke8 b7 Be6 Nc3 b1N Nd7 Bf7 b8N Nb4 Ng5 Nf3 Bh3 f1Q Nge4 Nh4 Rh2 Ng6 Ndf6+ Kd8 d7 Kc7 Ra5 Kb6 d8Q+ Rc7 Qe8 Ra7 Ra1 Ra5 Bd7 Rb5 e6 Ra5 Nh5 Nf6 d6 Rf8 h8R Rb5 Qc8 Ne8 h7 Be5 Nhf6 Bg3 Ra2 Ra5 Rd2 Rb5 Qc6+ Ka5 Rg8 Nh8 Rg5 Qf3 Rgh5 Qg2 Ncd5 Qf1 Qf3 Ka4 Ndc3+ Ka3 Rd3 Ng6 h8Q Ra5 Qg7 Nh8 Rd4 Bh4 Na2+ Nd3 Kd5 Be1 Qg6 Bf2 Qfg2 Bg3 Bc8 Rb5 d7 c4+ Nc5 c3 d8Q c2 Kc4 c1N Nc3 Nb4 Qdd5 Ra5 Bd7 Nb3 Qdf3 Rb5 N5e4 Rf5 Rd1 Nc5 Rd6
2rb2K1/1P2rr2/R1Rq1k2/1r3rB1/1nB1R2Q/2p5/1PQ1QN2/RnQ1Bb2 b - - 0 1 illegal: No possible last move, all moves rejected
K1N1NNnR/RN6/r3rQ2/P1n5/k1b2Rpb/1qP4n/3B1bQQ/1R3b2 b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 bxa5 Na6 e4 Nb8 exf5 Qc7 Qd5 Qb6 Qd1 Qd8 f4 g5 g4 h5 Be2 Nf6 fxg5 Bg7 g6 Ng8 g5 Bf8 Bg4 hxg4 Ke2 d5 Kd3 Kd7 Kd4 Kc6 h4 Kb5 a4+ Kb4 c6 b5 h5 e6 f6 Qc7 a6 Nd7 g7 Qb8 f7 Ndf6 g6 Nh7 c3+ Ka5 a7 b4 c7 b3 h6 b2 Nf3 Qb7 Nbd2 b1B Qc2 Qc6 Nh4 Bd6 f8R Ba6 c8N Ba2 Ne4 Qb5 Nc5 Bc4 Rf4 Nhf6 h7 Nd7 Qh2 Qb3 Bd2 Be7 Rhb1 Bf1 Ra3 Bac4 Ra2 Nb8 Ke5 d4 Ra3 Bg5 Kd6 d3 Kc7 e5 Ra2 e4 Nb7+ Ka6 Ra3 e3 Raa1 e2 Ra3 Nf6 g8Q e1B g7 Bf2 Ng6 Bgh4 Qd8 Re8 h8R Re6 Nf8 Ng8 Qf6 Nd7 Ra2 Nh6 g8N Nc5 a5 Kb5 Rab2 Rb8 a8Q Ka4 Qe5 Ra6 Nf6 Ng8 Ne8 Re6 Qf6 Ra6 Nbd6 Rbb6 Nb7 Re6 Kb8 Be2 Bc1 Bf1 Re2 d2 Re5 d1N Bd2 Reb6 Re7 Re6 Rf7 Kb5 Nbd6+ Ka4+ Qb7 Bg1 Re7 Nf2 Rc7 Rb6 Ka8 Nh3 Qbg2 Ra6+ Ra7 Bgf2 Nb7
r3QQ1k/4B2P/4N1Q1/1b1N1r2/1pBN1qr1/3rNn1b/BK3bP1/RQn5 b - - 0 1 illegal: No possible last move, all moves rejected
nRb1r3/2kpQ1rQ/1R2PK2/2N5/4bb2/nR1BQPQR/3B4/2Brb1q1 b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 h5 g4 f5 gxh5 c6 b4 f4 Ra6 f3 Nc3 Qb6 Nd5 Qd8 Ra3 Qa5 Rxf3 Qd8 Rf7 Rh7 Ne7 Rh8 Nf5 c5 dxc5 Rh7 Nd4 exd4 Bh3 Rh6 Bf1 Rh8 Kd2 g5 Kd3 a5 Ke4 a4 Ke5 d3 e4 a3 c4 a2 h4 a1R b6 d2 h6 g4 c6 g3 b7 g2 b5 R8a2 c5 Ra5 h5 R5a4 c7 Rd4 c6 Bg7+ Rf6 Rb1 b6 Ne7 f3 Ng8 h7 Rd6 h6 Rd4 Qe1 d1B Qg3 Rbb4 Rh3 Rb1 Bd3 Ra4 Ne2 g1B Nf4 Rba1 Ne6 Ne7 Nc5 Na6 b8R Bh2 b7 Nd5 Bd2 Rf8 h8Q Ndb4 h7 Bc2 Qg8 Rd1 h8B Ke7 Qh7 Re8 Kf5 Bb1 e5 Nc2 Rd6 Na3 e6 Rf4+ Kg6 Rf7 Kg5 Bf8 Bb2 Bh6+ Kg6 Be3 Bbc1 Rg7+ Kf5 Rh8 Ke5 Qg8 Kf5 Ke8 Kf6 Bf2 Rd4 Nc2 Rb4 Na3 Rb6 Be1 Ra8 Nb5 b8R Na3 Rb3 Bc2 R8b6 Bb1 Rab8 Bc2 Qg5 Bf4 Qg3 Bb1 Bc4 Bg6 Bd3 Be4 Nb7 Re7 Qh2 Qg1 Qg3 Rg7 Bb5 Rhg8 Nd8 Bb7 c8Q Re7 c7 Rgg7 Bc4 Kf8 Bf1 Re8 Bc4 Bbc6 Nb7 Bcd5 Qd8 Bc6 c8Q Nc7 R6b4 Na8 Rb6 Bb5 Be2 Bbd3 Qc3 Ba6 Nc5 Bc8 Qc7 Ree7 Bf1 Ke8 Qd6 Kd8 Qe3 Re8 Qe7+ Kc7 Bd3
n1K1R3/3R2qR/1Rbq2r1/4N3/bQp2QNP/BQn1nN1P/1r1N4/1k1n4 b - - 0 1 legal: proof: f4 d5 a4 h5 c4 b5 axb5 e5 cxd5 Ne7 fxe5 Ng8 g3 Bd6 Bh3 Be7 Bg4 Bh4 gxh4 hxg4 Kf2 Kd7 Ke3 g5 Kd4 f5 Kc5 a5 b4 g3 d4 g4 e4 a4 d6 Ke6 h3 a3 b6 a2 b7 f4 b5 f3 b6 f2 d7 f1B Nc3 g2 Nb1 g3 Nf3 g1N Nbd2 g2 Ba3 Nf6 Qb3+ Nd5 Rd1 Qf6 d8R a1Q Rd7 Ne2 Rh7 Nd7+ Kc6 g1N b8Q Bg2 b7 Nc3 Rb1 Nge2 Rhd1 Qg7 Qb4 Ne3 d5+ Kf7 e6+ Kg6 e5 Kf5 e7 Nb6 e8R Ra6 d6 Na8+ Qb6 Qb2 e6 Qb4 e7 Be6 d7 Bb3 d8Q Rg8 Kd7 c5 Qb5 Rg6 Qdc7 Ba4 Kc8 Bh1 Qbb6 c4 Qg3 Qd6 Qb4 Rf8 Qc7 Rff6 b8N Rf7 Nd7 Bg2 Nb3 Ke4 Nbd2+ Kd3 Nde5+ Kc2 Qf4 Rff6 Qcb7 Bh1 Qa5 Rg2 Rb6 Rfg6 Qb4 Rh2 Rd8 Rhg2 e8N Rf2 Re1 Ncd1 Nf6 Nec3 Nfg4 Bg2 Rd7 Re2 Nb3 Kb1 Qb8 Rb2 Nbd2+ Kc1 Nd4 Bd5 N4f3 Bdc6 Qb3 Qde7 Qd6 Qe6 Qc5 Qd6 Qcb4 Nc2 Re4 Nce3 Nf7 Qg8+ Re8 Qg7 Nf1 Kb1 N7e5 Qg8 Ne1 Qh8 N1f3 Qg7 N1d2+
B1r1R1q1/2P1QBp1/5Rb1/2N3k1/1QK1bb1Q/R1B4P/R4nbq/4nBr1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 c5 a4 Bd6 d4 Bb7 dxc5 Bf8 Nc3 Qc7 Na2 Ba6 axb5 Qd8 b6 Bb7 b5 Bc8 Nb4 axb4 Kd2 Ke7 Kd3 d5 c4 f5 e4 d4 b7 b3 h3 b2 e6 Kf6 e7 f4 e8B f3 e5+ Kf5 b6 f2 e6 Qd7 e7 Ra4 h6 Na6 b8R Qc7 h7 Nh6 b7 Qe5 c6 Qe6 c5 Ng8 c7 Nh6 c6 Qd5 Ra2 Ng4 Bd2 Qg8 Bc3 Kg5 Bf7 Nb4+ Kc4 b1B e8R d3 Ra8 d2 b8Q Nd3+ Qb4 Bf5 c8B Bd6 c7 Bf4 Bb7 Be4 Ne2 Ne1 Nc1 Ra6 Qda4 d1Q Nb3 Qc2 Nc5 Rg6 Qd7 Qd2 R8a3 Qc2 Be2 f1B Ba8 Bfg2 Bf1 Qf2 Qd6 Qg1 Qe6 Qh2 Qd6 Nf2 Qe7+ Kf5 Ra6 Rg4 Rf6+ Kg5 Rg1 Bgf3 Rg3 Bg2 Be5 Bg6 Rga3 Bbe4 Bc3 Bgf3 Rc2 Rg1 Rb2 Bg2 Rba2 Qf8 Rc8 Rg8 h8Q Qd8 Qh7 Rh8 Rb8 Qg8 Re8 Qf8 Rb8 Qe8 Be6 Qf7 Rc8 Rf8 Rb8 Qg8 Bf7 Rd8 Rc8 Rd3 Re8 Rd8 Qh8 Rc8 Qh4+
R1K1nr2/4Q1Nk/7Q/1n2B3/Bq2b3/1pPbbB2/Pq2Q1QN/1Nnq1N2 b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Kd8 f7 Kc7 bxa3 Kc6 a4 Qc7 a5 Qd8 f5 b5 g5 h5 Nd2 Ra7 Rb1 Rb7 Rb4 Rb6 Rg4 hxg4 Bd3 Kd5 Bf1 Rf6 gxf6 Kc6 Kf2 Kd5 Ke3 Ke5 h4 g5 a6 d5 c6 b4 h5 g3 c3 b3 c7 g4 h6 g2 h7 g3 a7 e6 a8B Nc6 Nb1 Bb7 c8N Qd6 Bb5 Na7 Ne7 Qb4 Ba4 Nb5 Qe2 Bh6+ Kd3+ Be3 f8N d4 f7 Kf6 Nd5+ Kg7 Ke4 d3+ Ke5 d2 Nf3 g1Q Nh2 d1B f6+ Kh6 Ba3 g2 Bc1 Bg5 Ne3 Bc2 Nef1 Qf2 Bf4 g1Q Bg3 Bg2 Bf3 Bd3 Bf4 Ne7 Bg3 Nd5 Bf4 Rg8 Bg3 Be3 h8Q+ Kg5 Qh3 Ndc7 Bh5 Bb7 Qg2 Kh6 Bf3 Bbe4 Ng4+ Kg5 Rh8 Ne8 Ngh2 Qh1 Nh7+ Kg6 f8Q Qhg1 Qe7 Rf8 f7 Kh6 Nf6+ Kg6 Qd1 Qb2 Nh5 Qh1 Rg8+ Kh7 Ng7 Qg1 Qde2 Qh1 Nfd2 Qd1 Ndf1 Bf2 Kf4 e5+ Kg5 Be3+ Bf4 Ned6 Kf6 Ne8+ Ke6 Bb6 Kd7 Nec7 Ng4 Re8 f8Q Bf5+ Qe6 e4 Qg1 e3 Nh6 Bfe4 Qeh2 e2 Qfe7 Bd5 Qgg2 Bb7 Qe3 Bbe4 Qhh3 Bd4 Be5 Rc8 Qef2 Be3 Qhe6 Re8 Ng4 Rc8 Rf8 Re8 Ngh2 Ra8 Rf6 Rf8 Qb6 Ne8 Kc8 e1N Rg6 Bc2 Qe2 Nd3 Rd6 Nc1 Rd7 Rf4 Ra7 Rf8 Ra8 Bcd3 Qh6+
1n6/Pn3P1p/BQbN1q2/1R6/k1b2q1Q/r1BQN1b1/B1N4q/K1nQ3B b - - 0 1 legal: proof: b4 d5 e4 f5 exf5 a5 bxa5 g5 f4 d4 f6 d3 a3 Qd5 f5 Qd6 cxd3 Qd7 d4 Qd6 d5 Qd8 g4 Bh6 h4 Qd6 a4 Qd8 Ra3 Bg7 Rf3 Bf8 Rf4 gxf4 g5 b5 g6 Ra6 Rh2 Rd6 Rh1 Rb6 Bc4 Rc6 Bf1 Rc3 Bb2 Rg3 Bc1 Rg5 hxg5 Bb7 Kf2 Ba6 Ke1 Bc8 d4 Kd7 Kd2 c5 Kc2 e5 Kb2 e4 a6 b4 g7 b3 a7 f3 a8B f2 a5 e3 d6 c4 f7 c3+ Ka1 c2 f6 e2 g6 e1N a6 Qc7 a7 Qc3+ Bb2 c1Q d5 Qd4 Bc3 Qde3 Nh3 Bb7 Nf4 Be7 f8Q Qed2 Rh5 Qcc2 Ba6 f1Q Na3 Nd3 Ng2 Bc6 Ne3 Nh6 g8N Nc1 g7 Nf5 Nh6 Rg8 Nf7 Qd4 B8b7 Qh2 Nac2 Qff4 Rg5 Bd8 Ba8 Bc7 Qd3 Rh8 g8B Qde5 Qh6 b2+ Kb1 Qed4 Qh4 Qb6 Nd8 Qbd4 Nb7 Qb6 Bf7 Rg8 Rh5 Rg3 Rg5 Ne2 Ka2 b1B+ Ka1 Ba2 Qd1 Bc4 Be6+ Ke8 f7+ Kf8 d7 Ke7 Qd3 Nc1 Qd1 Be5 Nd6 Kd8 B8b7 Kc7 Rh5 Qbd4 Rg5 Kb6 d8Q+ Kc5 Qf6 Ng7 Qg6 Ne8 Qgd3 Rh3 Ndf5 Bc7 d6 Qf6 d7 Nd6 d8Q Kb6 Ba8 Nb7 Nd6 Rg3 Be5 Ka5 Bc3+ Ka4 Bd5 B4b5 Ba2 Bc4 Rb5 Ba5 Bd4 Be1 Qb6 Rh3 Bc3 Bg3 Qhg4 Rh5 Qh4 Rd5 Rb3 Rb5 Rb1 Rb3 Rb2 Ra3 Rb1 Qff2 Rb5 Q2f4 Qc5 B6d5 Q3d2 Nd8 Qb6 Bf3 Be4 Nb7 Qd3 Bh1 Bf5 Bhd5 Be4 Bc6 Bh1
3N3r/3krb1B/NPn1Prq1/r6N/2RQ1Q2/p2r1B2/1BK1N1Q1/Bn5n b - - 0 1 illegal: No possible last move, all moves rejected
qQ6/RQ2Q3/8/1NRbN2r/NPN1q1bP/p1QR2bB/1n4b1/nk2b1K1 b - - 0 1 legal: proof: d4 b5 c4 e5 g4 d5 cxd5 h5 gxh5 b4 d6 b3 d5 Bb7 Be3 Qh4 axb3 Bc8 b4 Qe7 b5 Qd8 f4 a6 Bd4 exd4 e4 Be6 e5 Bd7 e6 Bc8 Bg2 a5 Bh3 Ra6 Bf1 Rc6 Bd3 Rc2 Bf1 Rg2 Qc2 Rg5 Qd1 Re5+ fxe5 Rh6 Qg4 Rh7 Qd1 Rh8 Kf2 c5 h4 g5 b4 f5 h6 c4 e7 Kf7 e8N Kg6 h7 g4 d7 a4 b6 d3 e6 d2 b7 a3 d6 g3+ Kg2 f4 e7 Kf5 Ne2 Ke4 Nc7 Kd3 e8Q f3+ Kg1 g2 Kf2 g1B+ Kg3 c3 Bg2 c2 Qc1 d1B Nec3 f2 Rh2 f1B N7b5 Nf6 Kh3 Nd5 Qe7 Nc6 b8Q Na5 Qb7 Nb3 Na4 Ne3 Nd2 Bf3 Nc4 Nd1 Rb1 Na1 Rb3+ Nc3 Rh1 Bf2 Kh2 Bd5 Bh3 Be1 Kg1 Bfg2 Qf4 Qe8 d8R c1Q d7 Kc2 Qfb8 Nd1 Rd3 Nb2 Rh2 Qf4 Rh1 Rg8 h8Q Kb1 Qc3 Rh8 Rh2 Bh6 Rh1 Qg8 Re8 Qfg4 d8N Qe4 Nf7 Bf4 Nfe5 Bg4 Rc8 Rh5 Rc5 Bfg3 Rh2 Bf1 Rf2 Bg2 Rf6 Qe8 Ra6 Qd8 Ra7 Qe8 Qbd6 Qa8 Qdb8
QK2bq2/1RNP2B1/BQ1q2Rn/bR2P3/R3rb1B/2b1p3/2rQkb2/7Q b - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e5 dxe5 Qf6 axb5 Qe7 c4 Qd8 e4 f5 e6 d4 e5 Nc6 Nc3 Nb4 Ne4 Nd5 cxd5 fxe4 Kd2 Ke7 h4 a5 f4 g5 b4 c5 h6 c4 b6 a4 h7 g4 d6+ Ke8 e7 Kd7 e8R Kc6 b7 Kd5 b8R d3 Ke3 d2 h5 a3 f5 c3 h6 a2 b5 g3 f6 g2 d7 c2 f7 Bb7 b6 Bd6 f8Q Ba6 b7 Qh4 Re6 Bb4 Nh3 Qg4 Rg6 Qf5 Ng5 Ba5 Ne6 Bd3 Nc7+ Kc4 Qc8 Kb3 Kd4 g1B+ Kd5 Kc3 Kc6 Qf8 Qe2 d1Q Bg5 c1B Bh4 Bf4 Qd2+ Kd4 Rb1 a1B Rb5 Kc4 Rh3 Be2 Ra3 e3 Ra2 B1c3 Ra4+ Qb4 Qe8 Bf2 Qc8 Bd3 Qf8 Kd4 Qc5+ Ke4 Qb6 Bc4 Be2 Bf7 Bc4 Kf3 Bf1 Nf6 Bd3 Rd8 h8B Be8 h7 Qf8 Bg7 Ng8 h8Q Ra7 Rb3 Ra8 Ba6 Nh6 Rb5 Ra7 Rc8 Ra8 b8Q Ra7 Q8b7 Ra8 Rb8 Rc8 Qh7 Ra7 Qa8 Rb7 Qd5+ Ke2 Qh1 Ra7 Rb7 Qd3 Qg8 Qd4 Qgd5 Qdb4 Qdg2 Qa3 Kd5 Qad6+ Kc4 Qd2 Qe6 Bcb4 Ra1 Bb6 Qec6 Qd1 Ne6 Kd2 Kd5 Bd8 Qd6 Rc2 Qc5 Kd3 Kc6 B2g3 Ra3+ Bc3 Raa5 Be7 Kc7 Bd8+ Kb8 Bge1 Qgd5+ Ke2 Ra1 Bb6 Nc7 Bf2 Qcd4 Bba5 Qb6 Bab4 Rc5+ Qd3 Bc4 Ra4 Ba6 Ba5 Rb5 Re4 Ra4 Qd4 Qdd6 Qc5 Qd5 Qcd6 Qd2+
6R1/1QP2r2/qRb1pbN1/k1N1Q2R/1Nq3bQ/1P3n2/bK5R/1bnB1N2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Nh6 f6 Ng8 f5 Bf8 Bf4 Qd8 h4 gxf4 g4 a5 g5 Ra6 g6 Ra7 Rh3 Ra6 Qc1 Rd6 Rh1 Rd3 Qd2 Rg3 Qd1 Rg5 hxg5 Ba6 Rh4 Bb7 Rh1 Bc8 Kd2 h5 Kc1 d5 c4 Kd7 b6 Kc6 f7 f3 g7 f2 g6 h4 b7 d4 f6 d3 Nf3 h3 Na3 h2 Rb1 a4 Qe1 Nd7 b8Q Ne5 Nc2 a3 Nd2 a2 Be2 a1Q Bd1 f1B Qh4 Nh6 g8R Bf5 g7 Nf3 Qe5 Rh7 Rh8 e6 g8R Bg7 f8N Qc7 f7 Ng4 Nd7 Bf6 f8N Qa6 Ng6 Rf7 Rh5 Nf2 Nb4+ Kb7 c6+ Ka7 Nc5 Kb6 Nde4 Ka5 Nd2 B1h3 Nf1 Bhg4 b3 d2+ Kb2 Bc2 Rc1 Bb1 Rc3 Ba2 Rd3 Qcc8 c7 Bf5 Rd6 Bfb1 Rb6 Nd3+ Ka3 Nc1 Kb2 Qcb7 c8Q Qc6 Qb7 Qd5 Rg1 h1B Rg2 Qe4 Rh2 Qc6 Ncd3+ Qd5 c5 Qdc4 Be2 d1B c6+ Qd5 Nc5 Qdc4 c7 Nd2 Nh8 Bc6 Bf3 Be2 Ng6 Bd1 Be4 Bg4 Bc2 Nf3 Bd1
5bK1/k1BB1B2/2pN1rP1/3n1bRQ/1rP3QB/3RqQ2/6Rq/q2qR1b1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 e5 dxe5 Nc6 axb5 Bd6 f4 Bc5 f6 Bf8 f5 Nb8 g4 Bg7 h4 Bb7 h5 Bf8 Nc3 Nc6 Nce2 Bc8 Nf4 gxf4 g5 Nce7 Bg2 Kf7 Bf1 Ng6 hxg6+ Ke8 Ke2 d5 Kf3 Kd7 Kg4 a5 Kh5 h6 c4 c6 b4 Kc7 f7 Kb7 f6 d4 b6 f3 e6 d3 b5 d2 g7 f2 Kg6 h5 e7 h4 e8Q h3 Qg4 d1Q Ra3 h2 Ne2 a4 Nd4 Kb8 b7 Qb3 Nf5 Be6 Nd6 Nh6 g8B Qg3 Bh3 f1Q Rd3 Qe2 Re1 Be7 Kg7 h1Q f8Q a3 f7 Ka7 b8R a2 g6 Qef1 Bg5 Qhh2 Bh4 Bf5 Qh5 Qd7 Qc8 Qe3 Rb6 Rb8 Rb7+ Ka8 b6 Qd8 Rd7 Ng4 b7+ Ka7 Rd2 Qa5 Rg2 Nf6 Rd8 a1B Rg5 Bb1 Bd7 Bd4 Rg2 Qa1 Rg5 Ra8 b8R Be4 Rb2 Bf5 Rbg2 Qfe2 Qe8 Q2f3 f8B Qfd1 Qf7 Rb8 Qd5 Rb6 Qdf3 Nd5+ Kf7 Rb4 Bg7 Qde2 Be5 Qed1 Kg7 Bb6 Bf7 Rh7+ Kg8 Bf8 Nb7 Bd4 Bc7 Bdc5 Nd6 Bd4 Bfe6 Re7 Bf7 Re6 Bde8 Rf6 Qe6 Qec3 Bd7 Bg1 Qee4 Qcb3 Qeg4 Qba3 Rde8 Q3c3 R8e3 Qcc1 Rc3 Qe3 Rd3
1r1Q4/2P1b3/qRn1PBBN/1QR1np1q/Q1n2Kn1/B4Q2/2bk4/Rq3R2 b - - 0 1 legal: proof: f4 b5 a4 a5 axb5 e5 fxe5 c5 d4 f5 dxc5 h6 g4 Ke7 g5 Ke8 Nd2 Ra6 Ne4 Rf6 gxf6 h5 Nf2 Kf7 Ng4 hxg4 Ra3 Ke8 Ra2 Nc6 Ra1 Nb8 Kd2 Kf7 Ke3 Ke6 c4 g5 b4 d5 h4 a4 c6 g3 h5 g4 h6 g2 f7 a3 b6 a2 b5 d4+ Kf4 g3 e4 d3 c5 d2 c7 Bd6 f8Q Be7 h7 Nd7 c6 Bd6 b7 Ne7 b8R Qe8 b6 Ng8 b7 Ngf6 Bb5 Qh5 Ba3 Ng4 Nh3 g1N Nf2 g2 Qf3 d1N Qd8 Nb2 Ba4 Rg8 h8B Be7 Bf6 Nc4 Rf1 a1Q Bb5 Kf7 e6+ Kg6 e5 Qb1 Ba4 Qb5 Ra1 Qa6 Bb5 Nf8 Ba4 Bd7 c8R Be8 Bb3 Nd7 Rf1 Nc5 Ba4 Nb3 Rc7 Nba5 Bb5 Bd6 e7 Bf7 e8Q Be7 Qed7 Bd5 e6 Be4 Qdd1 Bd3 Qa4 Bc2 Rd7 Re8 c7 Nc6 Rd5 Rh8 Rc5 Rg8 Qe3 Nf3 Qc3 Nfe5 Qf3 g1Q Ra1 Qb1 Rf1 N6a5 Be8+ Kh6 Bg6 Nac6 Ra8 Re8 b8Q Rg8 Qbb5 Rf8 Kg3 Rg8 Rb8 Re8 Bg7+ Kg5 Rb6 Rf8 Qd4 Rc8 Qd8 Rb8 Bf6+ Kh6 Qc3 Nge3 Bh8 Kg5 Qcd3 Nd6 Ng4 Ndc4 Nh6 N3g4 Qc3 Nh2 Kf2 Kf4 Bf6 Ke4 Qh3 Nhg4+ Kg3 Ke3 Qh1 Nd3 Qf3+ Kd2 Qf8 Nde5 Kf4 Qa5 Qg8 Qa6 Qd8+
q6b/1QP1n2r/p1brb2n/Q5KR/6p1/BB2Bk1B/NPN3Q1/N5nN b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 f4 g6 g5 Bh6 Ra4 Bg7 fxg6 Bh6 f5 Bf8 Rg4 hxg4 Kd2 d5 Ke3 Kd7 Kf4 d4 h4 a6 c4 d3 h5 e6 b6 Kc6 g7 d2 b7 Rh6 g6 Qc7+ Kg5 e5 f6 e4 f7 e3 Bh3 e2 Nc3 e1N Qe2 d1B Qg2+ Bf3 Be3 Nd3 Nge2 Qb6 Nc1 Nf2 Nb3 Qa7 Na2 Nd1 Na1 Nd7 b8N+ Kc7 c6 Kd6 c7 Ke5 c5 Ke4 c6 Bd6 f8B Bh2 Ba3 Bb7 c8Q Ne5 c7 Rh8 h6 Ne7 g8B Nc3 g7 Bg3 h7 Bc6 Qb7 Ne2 Bb3 Ng1 g8N Bf2 Nh6 Nf7+ Kh5 Bd5 Nf5 Nh6 Nc6 Be6 Kg5 Rad8 Ncb4+ Rd5 Nbc2 Qa8 Rh2 Bg3 Rh1 Be5 Rh2 Rf8 h8Q Rf7 Qe8 Rh7 Qeb5 Bd4 Qa5 Bh8 Qa7 Rd6 Ng3+ Kd3 Nh1 Bc6 Qgd2+ Ke4 Qb7 Rd8 Bf1 Kf3 Rh5 Rd3 Bh3 Rd6 Qg2#
3Q1nn1/4BB2/B1p1q1Br/nbK2P2/2p3N1/Q2rRQ2/NP1b3q/QN3k2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 b4 a5 b3 Ra4 Bh6 Rc4 Bf8 cxb3 dxc4 b4 Qd4 b5 Qb6 axb6 Bb7 Nc3 Ba6 Nb1 Bc8 Ke2 Kf7 Ke3 a5 Kd4 h5 g4 h4 f4 a4 f6 Ke6 g6 h3 g7 h2 g5 Kf5 f7 e6 g6 a3 b7 a2 b6 a1Q Nh3 Bd6 f8Q+ Nf6 g8B Ra5 g7 Nd7 b8Q Bb4 b7 Rh6 Nf2 Qa2 Qa7 Ra3 b8N Ba6 Bf7 Ng8 Nc6 Bb5 Ng4 Ba5 d3 Bd2 Qf3 Qb3 Qb4 Nf8 Kc5 Qa2 d4 Rd3 Rg1 h1Q d5 Qh2 d6 Qb3 d7 e5 d8Q e4 Bg2 e3 Qba3 e2 Nb4 e1N Na2 Nc2 Re1 Nd4 Re3 Nc6 Qaa8 Na5 Bh1 Nf6 g8B Qd1 Be8 Qe1 Bgf7 Ng8 Bg2 c6 Bh3 Bc3 Bd2 Qee2 Be1 Bd2 Bh4 Rb3 Be7 Rc3 Rd3 Qe6 Re3 Rb3 Bd7 Rc3 Bc8 Rd3 Ba6 Rb3 Bf1 Qf2 Nc1 Qh2 Qa1 Ra3 Qd3+ Qe4 Qb3 Qe6 Qba2 Rc3 Qa3 Rb3 Qd8 Rc3 Qd1 Rb3 Na2 Rc3 Rh3 Ke4 Qdb3 Rg3 Bd3+ Kf3 Bdg6+ Ke2 f5 Kf1 Qe3 Rf3 Qe4 Rc3 Re3 Rd3 Qf3+
3nN1NK/3rqrPB/P1kbQNpR/n2p2Q1/1b4q1/2B2Q2/r3Q2B/6N1 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 c5 f4 d6 fxg5 Kd7 d4 Qc7 dxc5 Qd8 e5 Kc6 e6 Bd7 exd7 Qe8 Bd3 Qc8 Bf1 Qd8 g4 Nf6 a4 Kc7 g6 Nc6 g5 Ne8 g7 Nf6 g8N Rb8 g6 Ra8 g7 Nb8 Ra3 Kc6 Rg3 Ng4 Rg2 Nf6 Rg6 hxg6 Kf2 e5 Kg3 b5 h4 e4 Kf4 b4 Kg5 e3 c4 e2 a6 e1B h5 b3 a7 b2 h6 Bb4 a5 Rh7 a6 Qe8 d8B Rh8 h7 Nd5 Kh6 f5 Bd2 f4 Qe2 f3 Bc3 f2 Bc7 Nd7 Nd2 b1Q Ne4 Qc2 Nef6 Rb8 a8Q+ Rb7 Bh3 f1R Be6 Ne7 Qd8 d5 Bh2 Nc8 Bf7 Bd6 Qde7 Kc7 c6 Re1 c5 Kb8 c7+ Ka7 c6 Kb6 Q7e4 Qa4 Q4f3 Ne7 c8Q Nf8 c7 Nc6 Qce6 Na5 c8Q Qd1 Q6e5 Rf1 Qce6 Qe7 Qg5 Qd2 Ne8 Qd4 Ngf6 Qg4 Bg8 Rf2 Bf7 Rg8 h8N Nd7 Kh7 Rf8 Bg8 Kc6 Nf7 Nc5 Kh8 Rd7 Nh6 Rf7 Bh7 Ncb7 Nhg8 Nd8 Bhe5 Rg2 Rh6 Rf2 Bh2 Rg2 Q2e3 Ra2 Qee2
1QB1nrb1/QB1bQ2N/3P1B2/q1n1K3/k3p2P/1N1N4/3nNpQ1/1qbR4 b - - 0 1 legal: proof: b4 b5 f4 d5 g4 c5 a4 a5 e4 e5 exd5 h5 gxh5 e4 Ra2 Ra7 Rb2 Qb6 axb5 Qc7 b6 Qd8 b5 Re7 Rb4 Re5 fxe5 cxb4 Kf2 Kd7 Kg3 g5 c4 f5 d4 a4 h4 g4 Kf4 a3 h6 g3 d6 a2 h7 a1Q b7 b3 b6 Kc6 d7 g2 e6 b2 e7 Qa4 e8N Qe7 d8Q Qa8 c5 Nf6 Nd2 b1B Ba6 Rg8 h8N Nfd7 Qe2 Bg7 Nb3 Ba2 Nf6 Rf8 Nf7 Qa7 Nh7 Nf6 Bb2 Nbd7 b8Q Ne8 b7 Qb6 Qc2 Qa5 Ne2 g1N Qa7 Nf3 b8Q Nd2 Bb7+ Kb5 c6 Ka4 d5 Nc5 d6 Bd7 c7 Bd4 Ba1 Bb2 c8B Bc1 Ne5 Qf6 Nd3 Qb2 Re1 Qb1 Ke5 f4 Qe7 f3 Qb2 f2 Rd1 Be6 Qc3 Bd7 Qc4+ Ka3 Qg8 Ka4 Qg2 Bh3 Nbd4 Bg8 Nb3 Bf5 Kf4 Bg4+ Bf6 Bd7 Ke5
2rbb3/N2QR1pQ/5R1N/1P1pQq1Q/P2qnk2/1br3q1/3RR3/BN3K2 b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b6 b4 b5 Bd3 a4 Bc2 Nc6 cxb5 Na5 Bb3 axb3 d4 c4 Qc2 Nb7 Qd1 Nc5 dxc5 Qc7 Qc2 Qa5 Qd1 Qd8 f4 Kf7 a4 Kf6 h4 e5 c6 d6 c7 e4 h6 c3 b6 b2 b5 e3 h7 c2 b7 e2 b8Q Ne7 h5 Rg8 h8Q Nc6 h6 Nd4 h7 Qd7 Ra2 Qf7 Rh2 Qb3 Qb6 Qf7 Nh3 Rb8 Nf2 Ba6 c8N Qe6 Na7 Bb7 Qc6 Be7 Ng4+ Kf7 f6 Kg6 f7 Kf5 Qc4 Bd8 f8R+ Qf7 Qc8+ Ne6 Re8 Bc6 Re7 Be8 Nh6+ Ke4 f5 d5 Qd7 Rc8 f6 Rc3 Qd2 Qg6 f7 Qf5 f8R Kf3 Rg2 Nc5 Rf6 Ne4 Qd4 Rf8 Qb6 Rg8 Bg5 Rf8 Bh4 Kf4 Qbe6 Rg8 Bf2 Rf8 Bd4 Rg8 Nd2 b1B Rb2 Ba2 Nb1 Bb3 Ra2 Rf3 Ba1 Rf8 Qhg8 Rc3 Qgf7 Rg8 h8Q Rf8 Qh5 Rg8 Rg3 Rf8 Rd3 c1Q+ Rd1 Qe3 Qh7 Qd4 Rd3 Rh8 Re3 Nd6 Kf2 e1Q+ Kg2 Rg8 Ree2 Qg3+ Kf1 Ne4 Rad2 Bb6 Qh8 Bf7 Qh7 Rgc8 Qdc6 Bd8 Qcd7 Be8 Qe5+
q4QNQ/R1P2NqB/1R3N1n/Kp2Q2b/3Rq1Pr/1p6/nQr5/1N1n1k2 b - - 0 1 legal: proof: e4 a5 b4 c5 d4 g5 dxc5 f5 exf5 Na6 h4 Nb8 hxg5 Ra6 Qd4 Ra7 Qd1 Ra8 a4 Qb6 b5 Kd8 Ba3 Ke8 Bb4 Qd8 b6 axb4 a5 Bg7 a6 Be5 a7 Bg3 Rh2 Bc7 Rh1 Na6 Nd2 Rb8 bxc7 b5 Nb1 Rb6 Nc3 Bb7 c8N Nb8 Nb1 Ra6 Nb6 Bc8 Na8 Kf8 Ra4 Kf7 Ra1 Ke8 Kd2 Kf7 f4 h5 g4 d5 c4 e5 g6+ Kf6 g7 d4 c6 b3 c7 e4 c5 h4 c6 d3 Kc3 d2 Kb4 h3 Nf3 h2 Ng5 e3 Qe1 d1N Ra4 e2 Nb6 Rh4 a8R Qd5 Ra7 Rh5 Nf7 Bd7 c8Q Rh8 c7 Qa8 Qg3 Nh6 g8N+ Kg7 f6+ Kg6 Nd5 e1Q+ Qc3 Be8 Qe6 Qe5 Qb2 Rc6 Ka5 Na6 Rd4 Rc2 Bd3+ Qe4 Qe5 Nb4 Re1 h1Q Re2 Qh4 Rh2 Qg5 f5+ Kh7 Rh5 Qg7 Rg5 Na2 Rg6 Qg2 Nd8 Qe2 f7 Qe4 f8Q Bf7 Re6 Bh5 f6 Kg6 Rb6 Rh7 Nf7 Rh8 Nd6 Rh7 f7 Rh8 Qee8 Kg5 Ndf6 Kf4 Qe5+ Kf3 Qfe8 Kg2 f8Q Kf2 Nf7 Ke1 Bc4 Kf2 Be6 Kg2 Bf5 Kf1 Bh7 Qg5 Qfa3 Nf5 Ne7 Bg6 Bg8 Rh4 Bh7 Bh5 Qh8 Qg7 Neg8 Nh6 Qf8
2Nb4/bKRp1NP1/8/2b1Q3/r1n2QN1/BQnR2Rb/1q3P1p/Rk1q3N b - - 0 1 legal: proof: e4 b5 d4 c5 dxc5 f5 exf5 b4 h4 g6 h5 b3 h6 Qb6 Be2 Ba6 Bh5 Qd8 axb3 Bf1 b4 Ba6 b5 Bc8 g4 gxh5 g5 a5 g6 Nf6 g7 Ra6 g8N Rd6 Rh4 Rd3 Rh2 Rg3 Rh1 Rg7 hxg7 Ba6 Qd4 Bb7 Qd1 Bc8 Kd2 Kf7 Kc3 e5 Kc4 e4 b4 h4 c6 h5 c7 e3 b6 e2 Kb5 e1B c4 h3 b7 h4 Kb6 h2 c5 h3 c6 a4 b5 a3 Nf3 a2 Nh6+ Ke7 Ng5 Qe8 Nd2 Kd6 Ngf7+ Kd5 Qb3+ Kd4 Ng4 Ne4 f6 Rh4 Rg1 h1Q Rg3 h2 Nf1 Qe5 Ba3 Nc3 Ka7 Be7 b6 Bc5 Rd1+ Ke4 Rdd3 a1B Ka8 Bd2 Ka7 Bg5 Ka8 Na6 b8R Bb7+ Ka7 Nb4 c8N Qg1 c7 Nc2 Ra8 Ne3 Kb8 Ba6 b7 Nc4 Ra7 Bb5 Ka8 Qh1 b8Q Qf3 Kb7 Qd1 Bb4 Bb2 Ra2 Bbc1 Ba3 B1e3 Ne7 Ba7 c8R Bec5 Rc7 Qd4 Nc8 Qe5 Nh8 Qd4 f7 Bd8 f8Q Bc6+ Ka6 Bd5 Nf7 Be6 Kb7 Bf5 Rdf3 Q4d2 Rd3 Qb2 Ngh6 Bh3 Ng4 Bd6 Rg2 Bdc5 Ng3+ Kf4 Nh1 Ke4 Rf3 Kd4 Rgg3 Ke4 Ne3 Kd3 Ng4+ Kd2 Rd3+ Kc1 Qd6 Kb1 Qf4 Bd4 Rc6 Bdc5 Qbe5 Rh6 Rc7 Ra6 Nfd6 Ra5 Nf7 Ra4 Ra1+
R1R1Q1q1/2r1pP1Q/r5b1/NB1B1B2/1Rnbp2B/3Q1nP1/2kp2R1/1n3K2 b - - 0 1 legal: proof: e4 d5 a4 b5 axb5 c5 h4 g5 hxg5 f5 d4 Be6 dxc5 d4 Nd2 Qd5 exd5 Bc8 Ne4 fxe4 f4 Kd7 b4 a5 c4 h5 g6 d3 d6 Ke6 b6 Kf5 c6 h4 b5 h3 g7 h2 g3 a4 d7 a3 d8Q a2 b7 Nd7 b8Q Nb6 c5 Ra4 c7 Nd7 b6 Rc4 b7 Ne5 c6 Rc2 Qh5+ Ke6 Nf3 Nf6 Nd2 Nc4 f5+ Ke5 g8B Nd5 f6+ Kd4 Qh7 Kc3 Rg1 h1Q Nb3 Bg7 Rg2 Bf5 c8R Bg6 Bg5 d2+ Ke2 Rc1 c7 Kc2 Na5 Nc3+ Kf2 Qh6 Bd5 Nb1 Bh4 Qg5 f7 Bd4+ Ke2 Rg8 Qa8 Rf8 b8R Rg8 Qd6 Rd8 Qa3 Rd6 Rb4 Ra6 Qf3 Qf6 Qc6 Qg7 Qe8 Qg8 Qe3 Ne5 Kf2 Nf3 Bb5 Na3 Rab1 a1N Ra8 Nb3 c8B Qf8 Ra1 Qg8 Bf5 Nb1 Rd8 Kb2 Rb8 Rc7 Rc8 Kc1 Kf1 Kc2 Nb7 Na5 Qd3+ Kd1 Raa4 Nc4 Ra2 Rb6 Raa8 Ra6 Na5 Kc1 Qa3+ Kc2 Qd3+
1k1Bn3/1Prp3K/Qp1P1B2/2b1p2Q/R1Q2r2/NB4b1/q1n2RnB/R3Q3 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 b5 g4 Ba6 gxh5 Rh6 a4 Nc6 axb5 Rh8 b6 Bc8 b7 Nb8 Bb2 Nh6 Bc1 Na6 b8B Ng8 c4 Rh7 b5 Bb7 b6 Be4 b7 Kf7 c5 Nb4 c6 Na2 Nc3 Ke8 Na4 Nb4 Nb6 axb6 Ba7 Rh8 b8B Bd3 Qa4 Ba6 Qd1 Bb7 cxb7 Na6 Ke2 g5 Kf3 c5 Kg4 c4 f4 e6 d4 c3 h4 c2 f6 Qc7 h6 Kd8 Kh5 g4 Kg6 g3 h5 g2 h7 Nh6 f7 Ng8 d5 Bc5 f8R+ Ke7 h6 Kd6 f5 Ba3 f6 Bc5 f7 Nf6 Ne2 g1N Rh4 Nh5 Bb2 c1B Nc3 Bd4 Qe1 Bg5 Nb5+ Kc5 Na3 Kd6 Bc4 Bc5 Bb3 Ne2 Bf6 Ng7 Ra4 Bf4 Bd8 Rg8 h8Q Nb4 Kh7 Ne8 Qd4 Rg4 Qc4 Bg3 Qa6 Rf4 Qc4 Ke5 Qa6 Qd6 Bbc7 Rc8 Bab8 Nc2 Bf6+ Kf5 Bcd8 Rc7 Rg8 Qe5 f8Q Qb2 Qf7 Qb1 Rf8 Qa2 Bh4+ Ke5 Bhf6+ Kd6 Qh5 Nc3 Qhe2 Nd1 Qec4 Be3 Kh8 Bg1 h7 Bc5 Kg8 Nde3 h8Q Ng2 Qh5 Rf2 Kh8 Rf4 Kh7 e5 Bh4 Rf3 Qec3 Bf4 Bf2 Bg3 Bg1 Rf5 Bh2 Rf2 Ba7 Rc6 Bh4 Kc7 Qe1 Rff6 Bb8+ Kd8 Bd6 Rc8 Be7+ Kc7 d6+ Kb8 Bd8 Rf2 Rf4 Rc7 Bhf6 Rf1 Re4 Rf5 Re2 Rf4 Rf2
5Rq1/pPQNQ1P1/1nBnr3/k7/1Q1Nn2Q/1p4N1/1K1pR1Nb/4rr1R b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 h4 Ba6 hxg5 Bb7 b6 Bc8 c4 Ba6 b4 Bh6 b5 Nc6 Ba3 Nb8 Bb4 cxb4 d3 Bf8 c5 Bb7 Qg4 Bd5 Qd1 Bc4 dxc4 Qc7 Ra6 Qc8 Ra1 Qd8 Kd2 d5 Kc1 Kd7 g4 h5 f4 e5 g6 d4 b7 Kc7 f6 e4 g5 d3 g7 h4 f5 b3 c6 Kb6 c5+ Kc7 f7 h3 g6 e3 f6 e2 Kb2 e1R Qh5 d2 Na3 h2 Bg2 Qd3 b6+ Kd8 c7+ Kd7 c8N Bd6 f8R Qd5 c6+ Ke6 c7 Kd7 f7 Kc6 Nb5 Rc1 Nf3 Bc5 Nbd4+ Kd7 Nd6 Nf6 g8Q Rh6 g7 Rf1 N6f5 Ne8 Re1 Bd6 Qh4 Re6 Re2 Be5 c8N Nd6 Ng3 Bf4 Ne1 Qc4 Ndf3 Kc6 Nd4+ Kc5 Bc6 Kb4 Ng2 Nd7 b8Q Ka5 b7 Nb6 Qc7 Qd5 Ne7 Re8 Ng6 R8e7 Ne5 Re8 Rg1 h1N Nd7 Nf2 Rh1 Be5 Qgh7 Bf4 Qc2 Nfe4 Qc4 R8e7 Ra8 Be5 f8Q Re8 Qfe7 Bf4 Nh5 Bh2 Ng3 Qh5 Ne5 Qh8 Nd7 Qg8 Rc8 Re1 Ra8 Rf8 Rd8 Rf5 Rf8 Rff1 Qb4+
n1K1N1rq/1Q1B3Q/4r3/3Rp2R/3PQ2p/2p2bk1/1QRBPqb1/2qB1R2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 b4 h4 e6 h5 b3 f5 Bb4 f6 Be7 Nc3 Na6 fxe7 Nb8 Na4 Ba6 Nc5 Bb7 Nd3 Nd7 Nf4 gxf4 g5 Nf8 axb3 Kd7 b4 Ba6 b5 Ng6 hxg6 Bc8 Kf2 Kd6 Kf3 Ke5 Kg4 a5 e8B c5 d4+ Ke4 b4 c4 g7 f6 b6 a4 d6 h6 b7 a3 b8Q f3 g6 e5+ d7 f2 b5 a2 b6 Bb7 Nf3 Ra5 Nh4 Bd5 b7 Ra7 Bh3 f1Q Nf5 Bc6 Bd2 Qc8 d8R Ra6 Rd5 Ne7 g8Q Qf2 Qh7 Rg8 g7 c3 Rf1 Rb6 Rc1 a1Q Rc2 Qc1 Qa8 Qd8 b8Q Nc8 Qbb7 Ra6 Qb2 Nb6 Qb7 Na8 Bg6 Bd7 Bf7 Re6 Be8 Bc8 Ba4 Bd7 Qe1 Bc6 Bb3 Qg2+ Qg3 Qf2 Qh4 Qb8 Be1 Qf8 Nd6+ Ke3 Ne8 f5+ Kh5 f4 Kg4 f3 Ba4 Qe7 Kf5 h5 Qg4 h4 Bb3 Rh8 g8R Qd8 Rg5 Rg8 Ba4 Qe7 Rh5 Qg7 Rd2 Qh8 Bd1 Qg1 Rc2 f2 Rd7 Bf3 Rd5 Rh6 Qgg6 Qh2 Ke6 Kf4 Bg4 Kg3 Kd7 Qg1 Qf5 Re6 Bd2 Qh2 Qe4 Qg2 Re1 f1B Kc8 Qf2 Bh3 B1g2 Rf1 Reg6 Bd7 Ra6 Kb8 Re6 Kc8
1RbnR2n/1Q3N1r/6qN/Pr1P3Q/1q1B2Qp/1Q3rNR/5pp1/2K3kN b - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 f5 gxf5 a4 f6 e6 f7+ Ke7 b3 Nf6 bxa4 Ng8 a5 Kd7 h4 g5 f4 Bc5 f5 Be3 f6 Bf4 Bh3 Be3 Bf5 exf5 Qb3 g4 Qd1 Bg5 hxg5 Qf8 Qc2 Qe7 Qd1 Qd8 f8R Kd6 a4 Ke5 e4 Kd4 a6 c5 f7 b5 d6 h5 g6 g3 a7 g2 d7 b4 e5 b3 a5 f4 g7 c4 e6 c3 e7 h4 e8Q c2 Nh3 f3 Bb2+ Kd3 Nf2+ Kc4 d4 c1Q d5 Ba6 Bd4 b2 Nc3 b1R Rh3 Nh6 g8N Qf4 Nh1 Rh7 Ne4 Rb5 Rb1 Qb6 d8N Nc6 Neg3 f2+ Ke2 Qf5 Kd2 Bc8 Kc1 Qg6 Qg4 Kd3 Rb4 Rb8 a8Q Rb7 Rb2 Re7 Rb4 Re3 Qb7 Rf3 Rb2 Rb3 Rb1 Qb4 Qe5 Rb2 Re8 Rb3 f8Q Nf7 Qh6 Nh8 Nf7 Nd8 Qeb8 Rb2 Qhh5 Rb3 Ne4 Ke2 Ngh6 Kf1 Neg3+ Kg1 Qb5 Qbd6 Q8b7 Qe7 Qa4 Rb5 Qb3 Qa3+ Rb2 Qb4 Rc2 Bd7 Rc8 Bf5 Ra8 Bc8 Rb8
7B/Q1r1RnK1/1Qn1B1P1/3pn1b1/N1q3QQ/q2P2R1/Bp1p2R1/1k3Br1 b - - 0 1 legal: proof: b4 b5 a4 f5 h4 c5 e4 g5 exf5 a5 hxg5 c4 bxa5 b4 d3 c3 Nd2 Ba6 Ke2 Bb5 axb5 cxd2 Ke3 Kf7 Ke4 h5 Ke5 b3 f4 h4 g4 e6 c4 h3 b6 h2 b7 Rh5 a6 Ne7 c5 Qc8 g6+ Kg7 c6 Ng8 c7 Ra7 g5 Bb4 f6+ Kh8 f5 Be7 f7 Kg7 f8Q+ Kh8 g7+ Kh7 f6 Kg6 f7 Rh8 Qd8 Rh4 f8R Nh6 g8B Rg4 Ne2 Rg1 Nc3 Kg7 g6 Bg5 Re8 Nf7+ Kd4 d6 Re7 Kf6 Bb2 e5+ Kd5 Kf5 Na4 e4 Bh8 Nc6 b8Q e3 Qb6 b2 Qe2 Qa8 c8B+ Rd7 Qd1 e2 a7 e1N Qh5 Kf4 Ke6 Rc7 Bd7 Qc8 a8Q Nf3 Qaa7 N3e5 Re1 Kg3 Re3+ Kf2 Rg3+ Ke1 Qg4 Qa6 Kf5 Qb5 Be6 Qc4 Qgd4 Kd1 Qg4+ Kc2 Rg2 Bh6 Kf6 Bg5+ Kg7 Kb1 Rg3 Rg2 Rg1 h1Q Re3 Rg3 Rg2 Qh4 Rf3 Qb3 Re3 Qa3 Bb3 d5 Rf3 Nd6 Be6 Ndf7 Re3 Rh3 Reg3 Rh1 Qd6 Rg1 Qdb4 Qh5 Qh4 Qg4 Qc4 Qd4 Qcb4 Qc5 Qbg4 Qc4 Ba2+
1Q5B/1Bppr3/1q1Nbqn1/q4n2/P1Br1N2/R1p1P1Q1/2B4Q/1k3NKN b - - 0 1 illegal: No proof kernel
2Q5/2p3rP/2N1B2r/1rn1n2N/p2pN2Q/kNB2bQ1/1RK1Pb1B/5rB1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 g4 Ba6 gxh5 Bc8 b4 Nc6 f4 Bd7 d4 Qe7 d6 Qg5 d5 Bc8 Ra2 Qe7 Rd2 Nb8 Rd4 exd4 Nc3 Nd7 Nb1 Qe5 fxe5 Nb8 Kd2 Kd7 h4 a5 e6+ Ke8 b6 g5 b5 f5 e7 Kd7 e8N a4 b7 f4 b6 g4 h6 f3 h5 g3 h7 f2 h6 g2 Nf3 g1R Nc3 Bg7 Qe1 Na6 b8N+ Kd8 d7 Ke7 d8Q+ Kf8 b7 Rg4 d6 Be6 d7 Nf6 Ne4 Rg2 Nc6 Nd5 b8Q Ndb4 N8f6+ Kf7 Qbc8 Bf8 Bb2 Ba2 Bc3 Ke6 Nh5 Kd5 Qh4 Kc4 d8B Kb3 Bg5 Rb8 Be3 Rg7 Bh3 f1R Qeg3 Ka3 Bg1 Nd3 Be6 Bb4 Kc2 Ne5 Nfd2 Bd5 Nb3 Rb5 Rh3 Nc5 Rh1 Rd8 h8B Rd6 h7 Ba5 Nef6 Bf3 Ne4 Rg6 Bf6 Rd7 Bg5 Rdg7 Bh2 Rh6 Be3 Rf2 Rd1 Rf1 Beg1 Bb4 Rb1 Ba5 Ba1 Be1 Bc3 Bf2 Rb2
2bQ3r/B1r1pB2/p1N2B1p/p3PR1n/Kbk1N3/Q3PBbQ/2N5/3q2Q1 b - - 0 1 legal: proof: e4 g5 c4 d5 cxd5 Bg7 h4 Bf8 hxg5 Qd6 Ke2 Qc6 Kd3 Qb6 Kc2 Qe3 fxe3 Bg7 a4 Nh6 b4 Bc3 a5 Ng8 b5 Nd7 Kd3 Bb2 Ke2 Bg7 Ke1 Nb6 axb6 Bf8 Ra6 bxa6 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 f5 g4 a5 g6 h6 b7 f4 b8Q+ Kd7 d6 Ke6 g5 a6 d7 f3 d8N+ Kd7 d5 f2 d6 c4+ Ka4 c3 b6 c2 b7 Nf6 g7 Rh7 g8Q Nd5 g6 Ra7 g7 Nf6 Nc3 Nh5 Qb3 Rh8 g8B Ng3 Rh5 Bg7 Bf7 Bf6 Be2 f1Q Bb2 c1B Nf3 Bg5 Ne1 Qf2 Nc6 Qg2 Nc2 Qh3 Qg1 Bf6 Qa3 Qg4 Bf3 Be5 Rf5 Nh5 Qa8 Bg3 b8B Rb7 Ba7 Rc7 Qb7 Bd2 Qb5 Rg8 Qbf1 Rh8 Qh3 Bde1 Nd5 Bd2 Bf6 Bb4 e5 Qd4 Nc3 Qd1 Be8+ Ke6 Ne4 Kd5 d7 Kc4 d8Q Qf1 Bg6 Qd1 Bf7+
2K3Nn/1pR4P/4kb1B/1PppqQ2/1n1nR3/3QQ1R1/Bp3BrB/1R2b3 b - - 0 1 legal: proof: c4 a5 g4 f5 e4 h5 gxh5 d6 exf5 Rh6 b4 Rf6 d4 Na6 c5 Qd7 d5 Kf7 c6 Qd8 Na3 Nb8 b5 Ra7 Nc2 Rh6 Nb4 axb4 Bd2 Ra6 Bc1 Bd7 cxd7 c5 Qg4 Rb6 Qd1 Rc6 dxc6 Rh8 Ke2 e5 Kf3 g5 Kg4 e4 f4 b3 h4 b2 a4 d5 c7 e3 c8R e2 a5 e1N a6 Nc2 h6 Nb4 a7 N4c6 a8R Bg7 h5 Rh7 f6 Na6 Kf5 g4 Bc4 g3 Rc7 g2 Ra3 Na7 Nf3 g1B Qd3 Nb8 Ba2 Nbc6 Nd4 Rh8 h7 Qb8 d8B+ Kf8 Ke6 Nge7 Kd7 Kf7 f5 Bf2 h6 Bg3 Bf4 Nac8 Rb1 Re8 h8Q Be1 h7 Na5 Bh2 Bb4 Nc6 Nc4 R8a4 Ng8 Ne7 Nh6 Ng8 Na5 Qe3 Bd2 Re4 Be1 Rb3 Ne7 Rd3 Kf8 f7 Nec6 Bh4 Bf6 Bf2 Nb4 Rc3 Nac6 Qd3 Be7 Qhd4 Bf6 Q4e3 Nd4 Rb3 Kg7 f8B+ Kf7 Rc3 Ng4 Bh6 Ne5+ Kd6+ Re7 Rb3 Ng6 Rc3 Bh4 f6 Nh8 Ra3 Kg6 f7 Kf5 f8Q+ Bf6 Rb3 Rg7 Rc3 Rg2 Kd7 Qa8 Ra3 Qa6 Kc8 Qd6 Ra4 Qe5 Rg4+ Ke6 Rg3 Bd8 Qff4 Bf6 Qg5 Nbc2 Rc4 Nb4 Qgg6 Ndc2 Re4 Nd4 Qf5+
5bNN/k2Q1PR1/3p4/p3n2q/K3B1r1/nR2N1NP/1ppqr1R1/2Q2Q1R b - - 0 1 illegal: No proof kernel
1r1B2rQ/4n3/5pR1/nk5q/pqPpR1QN/3R1P1N/p3q1NQ/KR2N3 b - - 0 1 legal: proof: b4 d5 d4 h5 g4 c5 dxc5 e6 gxh5 Nd7 a4 Rb8 e4 Qb6 e5 Qd8 b5 Bd6 exd6 Ra8 b6 Nb8 Bc4 Bd7 Ba6 Bb5 axb5 bxa6 Kd2 Kd7 Kc3 g5 Kb2 d4 h4 e5 c6+ Ke8 c7 Kd7 c8R a5 h6 e4 h5 a6 c3 a4 b7 a5 h7 e3 b6 g4 h6 e2 Rh4 e1Q Na3 g3 Nc2 g2 Rc6 Qe3 Ne1 Ra7 Re4 Ra6 Nh3 Qc8 Qg4+ Kd8 d7 g1Q f3 Qf1 Rg6 Nc6 b8Q Qfg1 b7 Nge7 Qh2 Qg5 b8R Rg8 h8N Q1e3 h7 a3+ Ka2 a4 Rbb1 Qd3 Bf4 Qh6 Bg5 Ra8 Rd1 Qf1 Rab1 Qe2+ Ka1 a2 Rd3 Qb8 Bh4 Qd6 Bg5 Kc7 d8N Na5 Ne6+ Kc6 Nef4 Qh5 Nfg2 Rab8 Bf6 Nd5 Bd8 f6 Nf7 Nb6 h8Q Qb4 Nh6 Nc8 Nf5 Ne7 Nfh4 Kb5 c4+
4BN1b/rbK5/1BBp2p1/r1n2Pp1/P2R2N1/p1Q3N1/k2p3Q/Nq1B3Q b - - 0 1 illegal: Other
Rr4b1/p1N3q1/1p2N1b1/pP2pQ1N/P2p4/2R1B2K/QQrk4/Q1RrR3 b - - 1 2 illegal: Other
B1bB4/1N1prb2/3PBQrq/QRK5/3r1Bqn/2R2R2/1bP3q1/nRQ4k b - - 0 1 illegal: No possible last move, all moves rejected
3n2N1/R1r2NRq/1Q3Pq1/p3r1Rb/P3B3/b1RKnq2/2Nb3Q/N2k1r1Q b - - 0 1 legal: proof: d4 c5 b4 f5 bxc5 e5 dxe5 h6 g4 Nf6 gxf5 Ng8 Bg5 hxg5 Kd2 Ke7 e4 d5 f4 b5 h4 d4 c4 g4 c6 g5 c7 a6 f6+ Ke6 c5 g3 h5 g4 f5+ Kd7 h6 Kc6 f7 g2 h7 b4 e6 g3 f6 b3 e7 b2 e8N d3 e5 Kb5 c6 Kc4 e6 Be7 f8Q Bd6 e7 Ra7 Nf3 g1B Ne1 g2 Nc2 Nh6 Rh5 Ba3 Rg5 Bg4 c8R Nf5 c7 Nc6 Qg8+ Qd5 Qe6 Nd8 Qb6 Rf8 h8Q Ne3 Qh2 Bh5 Be2 Qe4 Bf3 Qh7 Be4 Bf2 Qdh1 g1R Rg7 Rf1 Rg5 Bc5 a4 a5 Ra2 Bd6 Na1 Ba3 Ra8 Rg8 c8N Rc7 Ra7 Bg3 Rg7 Bf4 Rg5 Rf8 Rg7 Rf7 Rg5 Rc5 Ned6+ Kd4 e8R Rc7 Reg8 Qg6 Qb5 Re5 Nf7 Qh7 R8g7 Qg6 Nc3 b1Q Qb6+ Kc4 Nb5 Qh7 Nc2 Kb3 Ne7 Bc5 Ne1 Bg3 Nf3 Nd5 Rc2 Ba3 Ng8 Bf2 Rc1 Bh4 Bg6 Be1+ Kd1 d2 Nd4+ Ka2 Bf5 Ne3+ Ke2 Qc2 Nb3 Kb2 Bg6 Qf5 Rc3 Kb1 Rd3 Kc2 Na1+ Kc1 Rg1 Qg5 Be4 Qgf5 Rb3 Qfg6 Kd3 d1Q+ Nd2 Bd6 Nc2 Qf3 Rg5 Kd1 Rc3 Ba3 Nb3 Bd2 Nba1
KN6/Q1kn1Bq1/2r1BB2/3QpP2/Qn3r1b/Qb1b1B1N/n3Pn2/N3R2n b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 f5 g4 Qd6 g6 Qd8 b4 Na6 g5 Nb8 Ra3 Bg7 Rg3 Bf8 Rg4 fxg4 f4 Kd7 Kf2 c5 Ke3 a5 Ke4 h5 d4 e5 g7 g3 d6 g2 Kd5 a4 g6 a3 f5 c4 b6 a2 b5 a1N b7 h4 b6 h3 Na3 h2 Nh3 g1N Nc2 c3 Bg2 Rh4 Bg5 Re4 Bf3 Ra6 Bf6 Nh6 g8B Ng4 g7 Qe7 Bf7 Nf2 g8B Rf4 Kc5 Bh6 d5 Bg5 Kb5 Kd8 d7 Bh4 Qc1 Rfa4 Qa3 Rf4 Ng5 Ngh3 Re1 h1B Be6 Raa4 Bgf7 Rac4 Qa4 Rc6 Ka5 Na6 b8Q Nb4 Qa7 Ba6 b7 Bd3 b8N Bg2 Qa3 Nh1 Qa4 N3f2 Nh3 Rc7 Kb6 Rc6+ Kb7 Nb3 Ka8 Nc5 Na1 c2 Qa3 c1N Q7a4 Kc7 d6+ Kb6 d8Q+ Qc7 d7 Nca2 B3h5 Bd5 Qe7 Bb3 d8Q Nd7 Qg8 Qd8 Bg4 Qf8 Bf3 Kc7 Qc5 Qh6 Qg1 Qg7 Qd5 Ng4 Qgd4 Ngf2 Qda7+
Q2n2r1/1br1N1B1/5b2/1p2QK2/1k1RRQN1/1n2bRq1/RP1PNnr1/3b3Q b - - 0 1 illegal: Other
7R/3r1pnb/2qbRKb1/n5N1/2k1P1Q1/n1Rb1P1r/2R1Q3/NrNQ2QB b - - 0 1 illegal: No possible last move, all moves rejected
2nQ4/B1q1Pq2/RBrr3Q/B3b1Qb/2Bk2pn/3qR1P1/N4bRb/K1Q5 b - - 0 1 illegal: No possible last move
1bqr3R/R1rb3R/P3N1BK/r3pQ1n/8/Q1b1n1kq/Q1b1P2R/Q1N2N2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h6 g6 Qd6 g5 Ra6 g7 Qb4 g6 Qd6 Bb2 Ra8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 a4 Ke5 d4+ Kf5 h4 e5 d6 c5 d7 b5 h5 f6 a6 g4 Kh4 Kf4 h6 b4 Kh5 c4 h7 c3 a5 g3 d5 f5 d6 b3 a7 g2 Nh3+ Kg3 Nf2 g1B Bh3 f4 Nd3 f3 Bf5 c2 Rh2 c1R Nd2 Nh6 g8R f2 g7 f1Q Bg6 Qe8 d8N b2 d7 b1B Ne6 Bb4 d8Q Nf5 Qf6 Ne3 Qf5 Bd7 Kh6 Rc7 Nc1 Bc3 Qa4 Qd8 Qa3 Qc8 Rd8 Bd3 g8Q Bc2 Rf8 Qg2 Rf7 Qf3 Rg7 Qg4 Qgf7 Rd8 h8R Bf2 Rgh7 Qh3+ Bh5 Na6 Ra2 Nb4 Ra1 Nd3 Qg8+ Kh4 Bg6 Nf4 Ra2 Nh5 Qgf7 Rb8 a8Q Kg3 Qa7 Rb5 Qd4 Bb4 Qa1 Bg1 a6 Bd6 Rb2 Ra5 Rb7 Bf2 Ra7 Be1 Nf3 Bc3 Nd2 Rg8 Nf4 Rd8 Qfa2 Rcc5 Ne6 Bb8 Rg8 Rc4 Rgh8 Rc7 Nf1+
Q5nB/Brq1bprQ/k7/1q3b1K/B3rN2/NN6/nP2nP2/QQ2RBn1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e5 d4 Qf6 d6 Qh6 d5 Qf6 Ra4 Qd8 Rd4 exd4 e4 Kd7 Ke2 g5 Kf3 c5 Kg4 a5 h4 d3 b6 c4 b7 c3 e5 d2 h6 c2 h7 a4 e6+ Ke8 h5 a3 h6 a2 Na3 a1R Nh3 Ra7 Nf4 Na6 b8N Be7 Nd7 Nb4 Nc5 Qc7 d7+ Kd8 Nb3 Na2 Kh5 g4 Qe1 d1Q Be3 Ra4 Ba7 Qd3 Qb1 c1N Rg1 g3 Rh1 Qcc2 Rg1 Kc7 d8Q+ Kb7 d6 g2 d7 Qcc4 Qa5 Ne2 d8Q Qc7 Qae1 Bd7 Qa8+ Ka6 Rh1 g1N Qed1 Bf8 e7 Re4 e8B Bf5 Ba4 Qb5 Qdc1 Ne7 Qd1 Rg8 h8Q Rg7 h7 Ng8 Qe1 Be7 Qec1 Rg2 Qg7 Rg6 h8B Rb6 Qh7 Rb7 Qbc2 Rb1 Qe1 Rc1 Qb1 Rc6 Qa1 Rg6 Qeb1 Rg7 Bh3 Nf3 Re1 Nfg1 Bf1
7R/2b1pNb1/1k1r2RN/1n2P1N1/nrb1r1nQ/1p1Q4/RPQ2BK1/N3q1R1 b - - 0 2 legal: proof: f4 b5 g4 h5 a4 g5 c4 d5 cxd5 b4 Bh3 Nc6 fxg5 Qd6 g6 Qd7 g5 Nb8 Bg4 Qb5 axb5 hxg4 Kf1 Kd8 h4 c5 e4 Kc7 d4 f5 d6+ Kb6 d7 a5 d8N g3 e5 g2+ Kf2 b3 d5 c4 d6 a4 h5 f4 g7 f3 g6 c3 h6 c2 d7 a3 h7 a2 Bf4 c1N Bg3 Ne2 Nf7 Ra6 Qc2 Nf6 g8N Nc6 g7 Nc3 Ngh6 Na4 g8R Bg7 Nh3 Nd4 Na3 g1B+ Kf1 f2 Nhg5 Ng4 Kg2 f1R d8Q+ Kb7 b6 Be6 Qd6 Nb5 Qdd3 Bd4 Rg1 Bc4 Qcd2 Re1 Nc2 Kc6 b7 Bb6 b8Q Re4 Qbd6+ Kb7 Qf6 Bc7 Qff4 Kb6 Qd1 Bf6 Rg6 Rb8 h8R Rb7 Nd6 Bg7 Ndf7+ Nf6 Qh4 Rb8 Rc1 a1Q Q1e2 Qb1 Na1 Rb7 Rcf1 Qe1 Qec2 Rb8 Ne6 Ng4 Neg5+ Kc5 Rff6 Rd6 Re6 Na3 Ref6 Rb4 Rf4 Nb5 Rff6 Rd7 Ra6 Rd6 Raa8 Kb6 Ra7 Nac3 Ra2 Na4 Bf2+
nR1b2Q1/2q1Nb2/Nr3rB1/N6p/1n2k1QP/KQ3q2/1B1pP1qQ/3N2Bn b - - 0 1 illegal: No possible last move
2Rqb3/3nrB1K/1N3p1P/r1pQ1PQR/1rn2q1Q/b3NN2/2Rn1k2/2Q4N b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Nh6 g4 Ng8 gxh5 e5 d4 Qf6 d6 Qh6 d5 Qf6 Be3 Qd8 Bd4 exd4 Kd2 Kd7 Kd3 c5 Ke4 g5 Kf5 a5 e4 a4 b4 a3 h4 a2 f4 g4 b6 d3 b7 d2 b5 g3 h6 g2 h7 Qc7 b6 Qc6 h5 Nf6 e5 Ra3 e6+ Ke8 d7+ Ke7 Nf3 Kd6 d8Q+ Bd7 Qc1 g1R Nc3 d1N Bc4 Rgg8 Ne2 Qa4 Ng3 Ne4 Qg5 Bc6 e7 f6 e8N+ Ke7 d6+ Kd7 Nc7 Rg7 Nd5 Nb2 Ne3 Re7 Kg6 Bh6 f5 Nd2 Bf7 Qf4 Rh3 Rd8 h8Q Nbc4 Kh7 Ra5 Rb1 a1Q Rb2 Bb5 Rc2 Kc6 d7 Qad4 Rh1 Rc8 d8Q Nd7 b8R Rc7 Ra8 Rb7 Rc8+ Kd6 Rh4 Rb8 b7 Bc6 Nh2 Ke5 Qdg8 Qd6 Qd8 Kd4 Nf3+ Kd3 Qdg8 Qc7 Rh3 Qd8 Rh2 Rba8 b8N Rb5 Rh1 Rb4 Rh2 Ra5 Rh3 Nde5 Nd7 Ba4 Nb6 Nd7 Qhg7 Bc6 Qh4 Bg5 h6 Ba4 Nh5 Ke2 Ng3+ Kf2 Qg6 Nb8 Qgh5 Be8 Q5g4 Nd7 Rh1 Qd6 Qe4 Bf4 Qd5 Be5 Qgg5 Bb2 Qhd4 Qe5 Rh5 Ba3 Qdh4 Qf4 Nh1+
NBB1k1b1/B1Q2r2/2K1RR1Q/b4P1R/4Rpn1/1r3P2/Q4qqp/n1n2q1B b - - 0 1 illegal: No possible last move, all moves rejected
6n1/1qrN1PN1/brRN4/b3k1B1/1Qr2q1n/K1pB1qpB/Q1P3QN/3Q4 b - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 f5 gxf5 h5 b4 Ne7 a4 Nbc6 axb5 Nb8 Ra3 Ng8 Rg3 Qe7 Rg6 Qd8 Rg4 hxg4 Kd2 Ke7 Kc3 a5 Kb2 d5 e4 c5 f4 g5 h4 g3 h5 c4 e6 Kf6 e5+ Ke7 h6 g2 h7 d4 f6+ Ke8 e7 Kd7 e8N Ke6 f7 g4 f5+ Kd5 e6 d3 b6 g3 e7 a4 b5 c3+ Ka3 d2 f6 Bd7 b7 Bh3 b6 Nd7 b8N Ne5 b7 Qb6 Nd7 Nf3 b8Q Ra7 Qa8+ Qb7 Bd3 Nh4 Nf3 g1R Ng7 Bf1 Nh2 Kd6 e8B Kd5+ Ka2 Bb4 f8Q a3 f7 Ba5 Qb4 Be2 Kb3 a2 Na3 a1Q Nb5 Rf1 Nd6 Rf4 Rf1 Rc4 Rf6 Ra6 Rg6 Rb6 Qa6 Qb1+ Ka3 Kd4 Rh6 Qe4 Qa8 Qf4 Qg2 Bf1 Rh5 Be2 Rc5 Bf1 Rc6 Be2 Nb8 Ke5 Bd7 Bf1 Bh3 Be2 Qe1 d1Q Qd2 Qdf1 Qd1 Q1f3 Be3 Nh6 Bc1 Rc8 h8Q Rc7 Qc8 Ng8 Qa6 Q4e4 Bg5 Qc1+ Qb2 Qcf4 Qab5+ Qd5 Q5b4 Qb5 Qba1 Qa6 Qa2 Qb7 Bdf5 Rc5 Bh7 Ba6 Bd3 Rc4 Nd7+
RQkq1NnR/pnq1P3/4r1p1/P7/3Q1N1n/4QbK1/2RN1N1R/bBr1r3 b - - 0 1 illegal: No possible last move
1RQr1R1N/1pn2N1B/1r2Qq2/R1R3nN/PP3bK1/kq4bp/bQ4N1/3n4 b - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 a5 c4 a4 cxd5 a3 b3 Be6 Bb2 axb2 Rh3 Bd7 Rh1 Bc8 Ke2 Kd7 Kf3 Kd6 d4 e5 g4 h5 g6 c5 f6 h4 g5 c4 b4 c3 g7 h3 g6 c2 f7 c1Q Na3 b1N Ne2 Qb6 Nf4 Bd7 Nc2 Qd8 Ne1 Ra3+ Bd3 Bb5 Kg4 e4 Qe2 e3 Neg2 Bc4 Nh5 Ra7 f4 Na3 f5 Na6 f6 Nb5 Qb2 Ne7 g8Q e2 g7 e1B Bh7 Qb1 a3 Bf2 Rc1 Ba2 Rc5 Kd7 d6 Nc8 d5 Bg3 a4 Nc3 Ra5 Qc2 Rc1 Qb3 Rc2 Nd1 Rcc5 Be7 f8Q Nc7 Qgf7 Ra6 g8R Rb6 Qg6 Bf4 f7 Bh4 Qe4 Qf6 Qe1 Ne8 Qee5 Bhg3 Qe6+ Kd8 d7 Nd6 Qg7 Ne4 f8R Ng5 Qc1 Qe7 Qgb2 Qf6 Qc4 Rc6 Qcc1 Kc7 d8N Kb6 Nf7 Nc7 Rb8 Rd6 Rgc8 Rc6 d6 Rd8 d7 Rd6 Nh8 Rc6 Qg8 Re6 Re5 Rd6 Qe3+ Kc6 Re8 Re6 Rf8 Kd6 Ra6+ Kd5 Ra5+ Kc4 Qee5 Qf7 Qf5 Rb6 Qgg6 Re8 d8N Qf6 Ndf7 Rd8 Qg8 Qd3 Qe6+ Qd5 Qd4+ Kb3 Qd2 Ka3 Qf2 Nb5 Rc5 Nc7 Qc8 Qb3 Qg6 Qd4 Qge6 Qf6 Qb2+
Rq1qN2b/kPQ5/2nQ1rb1/p3n1B1/r3NR1K/1R1Q3N/PQp1Rr2/4q3 b - - 0 1 illegal: No possible last move
nnkQ1QR1/Bp3N1p/1Q2RN2/rn6/NPN1b3/n2n1q1P/4QRbr/6K1 b - - 1 2 illegal: No possible last move, all moves rejected
1N1K4/Q1pNQ2N/r2R2p1/n2B2P1/1BPq3Q/Bb1N1br1/n1b5/k1b2Bn1 b - - 0 2 legal: proof: d4 e5 dxe5 b5 f4 Be7 a4 Bc5 axb5 Bf8 b4 g6 f5 Bc5 Ra6 Bd6 fxg6 Be7 g7 Bf8 Rg6 hxg6 Kd2 Ke7 Ke3 Ke6 Kf4 a5 c4 d5 g4 f5 e4 a4 h4 d4 g5 a3 b6 a2 b7 a1N b5 d3 h5 d2 h6 Ne7 g8B+ Kd7 h7 Nec6 e6+ Kd6 b6 Kc5 e5 Kd4 e7 Qe8 e6 Qf7 e8N Ne5 e7 Ra5 Qh5 d1B Nc3 Nc2 Ba3 Nb4 Na2 Bb3 Nc1 Kc3 Qh4 Qd5 Nd3 Na2 Nf6 Nf3 e8Q Nc6 b8Q Bb7 Qe7 Ra6 Qa7 Na5 Rh2 Ba8 b7 Qc5 b8N Qd4+ Qe4 Bc5 Bd5 Rd8 h8B Bb6 Nh3 Ng1 Nhf2 Kc2 Rh3 Kb1 N2g4 Ka1 Nh7 Rd7 Nge5 Bc5 Kg3 f4+ Kg4 f3 Kf4 Rdd6 Ned7 f2 Be5 Re6 Bd6 Bb4 Rg3 Bd2+ Re3 Bc1 Bdb4 Bb2 Re2 Bc1+ Rd2 Re7 Bh3 f1B Bg2 Be2 Bf1 Qc3 Qe6 Bed1 Qee3 Re8 Qe7 Bdc2 Ke4 Rd8 Rd1 Qd2 Ke5 Bc6 Kf6 Qc3+ Qe5 Qd4 Ke7 Rf8 Rd2 Rf3 Kd8 Rg3 Qe7 Ba8 Re2 Bb7 Re6 Ba8 Rd6 Bb7 Bg8 Bf3 Bd5
q1N1B3/2b1p1Bk/1r2PR2/n1Q5/3BrnbK/Qn1PRpr1/5B1Q/Qn1R4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 g4 h6 g6 Bg7 Nc3 Bf8 Ne4 h5 g5 Rh6 Nf2 Rh8 Ng4 hxg4 Kf2 f5 Kg3 c5 b4 a5 h4 a4 e4 a3 g7 Kf7 h5 a2 b6 f4+ Kh4 g3 h6 Kg6 d6 c4 h7 Ra4 d7 c3 e5 c2 b7 g2 b5 Nh6 g8Q+ Bg7 b6 f3+ Qc4 Nf7 e6 Re8 h8B Qc7 d8Q Bf8 Qd6 Qc5 Bcb2 c1N Ne2 g1N Ng3 Bd7 Ne4 Qd5 Qa3 Nc6 b8Q Bh6 b7 Rg8 Qcc5 Nge2 Qh2 Nd6 b8B Nb5 Bg3 Be8 Bf2 Kh7 Rb1 Ra6 Nd6 a1R Bbd4 Rb6 Rb3 Bh5 Nc8 Na5 Qe1 Qa8 Rg1 Bg7 g6+ Kh6 Qd1 Be5 g7 Nbc3 Rh1 Nf4 Bb5 Kh7 Be8 Bc7 Rg1 Rf8 g8R Ra2 R8g4 Rg8 Rg6 Rc2 Rf6 Rg3 Rf1 Bg4 Bg7 Ra2 Re1 Rb2 d3 Re2 Rb1 Re4 Re3 Ncb3 Qdc1 Nb7 Qcb2 N7a5 Rd1 Nb1 Qba1
1R2Q1Q1/1bb1q1PQ/4n3/B3pK2/k1R1NbR1/4Pp1R/1rNNb3/rN1n3r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 c5 d4 Ba6 dxc5 Bb7 Bh3 Bh6 fxg5 Bg7 g6 Bc8 g5 Bf8 Bg4 hxg4 Kf2 e5 Ke3 a5 Ke4 d6 c4 Kd7 h4 a4 b4 g3 c6+ Kc7 c5 g2 e3 f6 g7 a3 h5 a2 h6 Bb7 b6+ Kc8 g6 d5+ Kf5 d4 h7 d3 b5 d2 c7 Kd7 c8R Bd5 c6+ Kd6 c7 Kc5 b7 Kb4 b6 Na6 b8N Bd6 b7 Qe7 Qh5 d1B Nc6+ Ka4 b8R Be2 Rh3 Nc5 Bd2 Ne6 Nb4 Bb7 Nf3 g1B Nc2 Bh2 Ba5 Bf4 Nfd2 Ra7 Re8 Ra8 c8N Bc7 Nd6 Ra6 Red8 Rb6 N6e4 Rb2 Rd6 Bh6 Nba3 Bf4 Rg1 a1R Rc6 Rf1 Ng5 Ra1 Nab1 Nh6+ Ke4 Ng8 Rg4 Nh6 g8Q f5+ Kd5 Nf7 g7 Nd6 Qhe8 Nb5 Nge4 Bh2 Ng3+ f4 Ke4 Nc3+ Kf5 Nd1 Nge4 f3 Qgf8 Rg8 h8Q Bf4 Qh7 Rh8 Qfg8 Qc5 Qh6 Qe7 Qhg6 Rh6 Q6h7 Rh4 Rhg3 Rh2 Rh3 Rh1 Rc4+
3QQ2Q/4r1r1/1krn1bBq/1b2N2p/1BR1p1B1/Rb1PR3/R4r1P/4n1QK b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 Kd7 f6 Ke8 f5 Kd7 Nc3 Ke8 Nce2 Nd7 Nf4 gxf4 Ra6 Nb8 Ra5 Ba6 Ra1 Bc8 Kf2 Kd7 b4 e5 g4 a5 Kg2 c5 d6 h5 b6 Kc6 d3 a4 g5 a3 d7 a2 b7 c4 g6 e4 f7 c3 f6 c2 g7 Be7 f8R Rh7 f7 Qb6 d8Q Be6 Nf3 Bf6 Bd2 c1R Be2 Bb3 Qg1 Nd7 b8Q Ne7 g8B Nf5 Ne5+ Kb5 Qe8 Rg7+ Bg4 Nd6 Bh7 Rc6 Qbd8 Ra7 Bg6 Qa6 Re1 a1R Re3 Ra2 Rg8 Rac7 f8Q Kb6 b5 Re7 Qh6 Rb2 Qh8 f3+ Kh3 f2 Bb4 f1B+ Kg3 Kb7 b6 Bh3 Rf8 Rf2 Rg8 Qa4 Rf8 Ka6 b7 Kb6 Rf7 Qa6 b8R+ Nb7 Rc8 Nd6 Be2 Bhe6 Bg4 Bec4 Ra8 Bb5 Kh3 Qc8 Ra2 Qa6 Rf8 Nc5 Rg8 Ne6 Rf8 Nd4 Kg3 Rf1 Kg2 Nc2 Ra3 Bg7 Rf2 Ne1+ Kg3 Bf6 Rfa2 Nc2 Kg2 Rf5 Qd1 Rf1 Rg1 Ne1+ Kh1 Rf4 Rgg2 Rg7 Rgc2 Rf2 Qa8 Rce7 Rc4 Qc8 Qa1 Qf5 Qc1 Qg5 Qb1 Qh6 Qac8 Ng2 Qg1 Ne1 Qcd8+
1qQRQ3/QRp1b2p/2Q2b1N/1Kn5/N1P3Pn/1nNb1k2/3N2R1/1r1brB2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bd6 hxg5 Bf8 e4 f6 e6 Nh6 e7 Kf7 e5 Kg6 e6 Ng8 Bf4 Bh6 Bh2 Bf8 Be5 fxe5 Ke2 Kf5 Kd3 Kf4 Kc4 a5 e8Q a4 b4 e4 g4 d6 g6 a3 e7 a2 b6 e3 b7 d5+ Kb5 d4 c4 d3 g7 e2 Rh2 e1B Rg2 d2 Nc3 Nc6 b8Q Nh6 g8N Ra4 Nge2+ Kf3 Rb1 a1N Qa7 Ra3 Qda4 Nf7 Nh6 d1B Ng3 Rg8 Nge4 Nb3 Qd7 Nce5 e8Q Bb7 Qc8 Bd6 Q4a6 Nd7 Qc6 Ndc5 Rb2 Kf4 f3 Ke3 f4 Nh8 f5 Kf3 f6 Bh4 f7 Ng6 f8N Bf6 Nd7 Nh4 Nb6 Ra1 Nba4 Rb1 Rbd2 Qe7 Rd4 Qf8 Rd5 Bde7 Rd8 Nd4+ Ka5 Rh8 b5 Ndb3+ Kb4 Rg8 b6 Rg5 Kb5 Re5 Nd5 Ba8 b7 Qh8 b8R Bb7 Ng3 Re1 Ne4 Qf8 Ndc3 Ba8 Q6a6 Bd5 Qd6 Bf7 Rb7 Bg6 Ng3 Bd3 Nge4 Qf7 Qdc6 Qh5 Q8e6 Qf5 Q6g8 Qc8 Qge6 Qa8 Qc8 Qb8 Nd2+
2k1Nq1R/b1n2QrN/p2P1Q2/2QRNb1n/3K3R/P1n4r/1Q2bpB1/R6b b - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 c5 hxg5 Be7 b4 Bd6 bxc5 Bf8 c4 d6 c6 Bd7 c7 Bc6 c5 Bf3 c6 Bg4 Ba3 Bc8 Bc5 dxc5 Kf2 b5 Ke3 h5 g4 f5 d4 b4 d5 a6 g6 c4 g7 b3 a3 c3 e6 b2 e7 c2 g5 c1N g6 f4+ Kd4 f3 e4 f2 d6 h4 e5 h3 Qe2 h2 Nc3 b1B Qb2 Ra7 Bg2 Be6 c8Q Rb7 c7 Rh6 Nf3 Rh3 Ne4 Bg4 Qe6 Na2 c8Q Nd7 Qc5 Ndf6 Neg5 Nd5 Qf6 Kd7 e8N Nac3 Nh7 Nc7 e6+ Kc8 e7 Bbf5 Ne5 Be2 Rhd1 h1B Rd2 Nh6 g8Q Bg7 Qgf7 Ng4 Rdd1 Bh6 g7 Bf4 g8R Bg5 Q6g6 Nf6 Rh8 Nh5 Qgf6 Ra7 Ng7 Bf4 e8R Bd2 Reg8 Qf8 Ne8 Rb7 Rg4 Bg5 Rd3 Be3+ Kc4 Bd4 Rh4 Be3 Qcb5 Ba7 Qb6 Na8 Kd4 Re7 Qc5+ Nc7 Qg8 Rg7 Qgf7 Bf3 Kc4 B3g4 Rd5 Be2+ Kd4
1b5Q/b2r1Rpb/1npB1BP1/n1q1b1R1/r3B1KP/3q4/R1NQ3k/2BQR3 b - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 f6 c4 Bf5 cxd5 Kd7 Nc3 Be6 g5 f5 exf5 Ke8 Ne4 Bc8 Nf6+ Kf7 Ng4 hxg4 Be2 Ke8 Bd3 Ba6 Bf1 Bc8 Ke2 Kd7 h4 Kd6 f4 a5 d4 e5 b4 a4 b6 a3 g6 c6 b5 g3 Kf3 e4+ Kg4 e3 b7 g2 b6 e2 Nf3 g1B Bg2 e1B Ra2 Bd2 Ne1 Bc3 Nc2 Ra4 Be4 Na6 b8R Be6 b7 Ne7 Qd2 Be3 Re1 Bg8 f6 Bh7 f7 Nc8 f5 Nc5 f6 Nb6 Ra8 Bb2 Ra5 Nb3 b8R Be7 f8Q Bc3 Ra7 Na5 f7 Bf2 Qe8 Bg5 Re7 Bf4 f8B B4g3 Rf7+ Qe7 Rb2 a2 Qc8 a1Q Ra2 Qb1 Qd1 Nd7 Rb5 Nb6 Rc5 Qb5 Qa8 Qd3 Qd2 Kd7 d6 Ke6 d5+ Ke5 d7 Rg8 Rb5 Qc5 d8B Bh2 Bg5 Bb2 Bfe7 Rd8 d6 Rd7 Qh8 Bhg3 Kh3 Be3 Bgf6+ Kf4 Bf8 Be5 B8e7 Rb7 d7 Bb8 d8Q Rd7 Bf5 Kf3 Bd6 Be5 Qd1+ Kf2 Be4 B3d4+ Kg4 Be3 Kh5 Kg3 Qd2 Bd4 Qd1 Kh2 Kg5 Qb4 Rd5 Qc5 Kg4 Bf4 Rf5 Bde5 Rg5 Ba7 Bde7 Beb8 Bd6 Be5 Qhf8 Qa6 Qh8 Rb7 Bf8 Qf1 Q8d4 Rd7 Bd6 Qfb5 Qb4 Qd3 Qbd2+
1k3nbB/p1Q1Q1B1/1qrB3N/3prQN1/3P3N/1nN1n1bK/nq2B2P/1R6 b - - 0 1 illegal: No possible last move, all moves rejected
2K1N3/4R1p1/1q1kN1Rr/B2q2bN/1P1p2P1/N1n1qQ2/1QRnbQ1r/5Rq1 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 b5 dxc5 h5 a4 h4 axb5 h3 g3 Qc7 Bg2 hxg2 Qf3 Qb6 Qd1 Qd8 Ke2 d5 Ke3 Kd7 Kf4 a5 Ke5 e6 f4 a4 c4 a3 h4 d4 f6 a2 f7 Nh6 h5 Qe8 c6+ Ke7 f5 Bd7 g4 Ra6 f6+ Kd8 c7+ Kc8 b6 Ng8 h6 Be7 f8Q Ra5+ c5 Rh7 f7 Ra8 Nh3 g1Q Nf4 Kb7 c8R Qf1 Nh5 Qc4 Rf1 Bb5 Bd2 Nf6 Qf3+ Nd5 Na3 Qd8 Rae1 a1Q Ba5 Na6 b4 Rh8 h7 Bg5 Re2 Qf6+ Kd6 Qg6 Rc6 e5+ Kd7 e4 Rc2 e3 Qf2 e2 Qf3 Rg8 h8R e1Q Rh6 Qf6 Rg6 Nc3 Re2 Rc8 Re7 Qe3 Qf2 Kb8 b7 Rh8 Qf3 Qca2 Qf2 Be2 Rc7 Rh6 c6 Re8 Rc8+ Ka7 c7 Qb6 b8N Kb7 Nc6 Qd1 Nd8+ Ka7 Ne6 Kb7 Qh8 Qda1 Qh7 Rh8 f8Q Nc5+ Kd8 Kc6 Qhg8 Qe1 Q8f3+ N5e4 Qgf8 Bc4 Qb2 Kd6 Qff2 R8h7 Q8f3 Nd2 Rb8 Qeb1 Kc8 Be2 Rb7 Qc6 Rb5 Qad5 Rc5 Nb5 Rc2 Nc3 Nhf4 Rh2 Nh5 Rh6 Kb8 Qa6 c8N+ Kc6 Nd6 Qb6+ Kc8 Qc1 Ne8 Qe1 N8c7 Kd6 Q2g2 Qg3 Qgf2 Qg1 Ne8+
3N3B/q1q1kB1p/1Q2r3/R1b1BR1b/4Rr1Q/7Q/1P1qpqnP/K1Q1B1n1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 Kd7 f6 Ke8 f5 Kd7 Nc3 Ke8 Nce2 Nd7 Nf4 gxf4 Ra6 Nb8 Ra5 Ba6 Ra1 Bc8 d4 c5 Kd2 a5 Kc2 e5 Kb1 c4 g4 e4 d6 e3 d5 c3 g5 a4 g6 f3 f7+ Kd7 f6 f2 b6 a3 b7 Qc7 g7 Ra7 Nh3 Kd8 d7 Ne7 g8Q Ng6 Ng5 Qa5 Bc4 f1Q Bd2 Qf4 Re1 Nc6 b8B Nd4 Be5 Qf1 Qh5 Qg1 Qh3 Nf4 Qg6 Be7 f8B Nde2 f7 Qc7 Qc6 Ra4 Bfg7 Re8 f8R Qf2 Bh8 c2+ Ka2 Bb7 Rf5 c1Q Qb6 Bc5 Nf7+ Ke7 Ba5 Kf8 d8Q Ng2 Qdh4 Ng1 d6 Bf3 d7 Bh5 d8Q Qd1 Bb3 Rf4 Qd2 Re7 Qc1 Qd5 Rd1 e2 Rd4 Re8 Re4 Qd3 Be1 Qd2 Bd5 Re7 Kb3 a2 Nd8+ Ke8 Bg8 Re6 Bf7+ Kf8 Rb1 Qdd7 Kc2 a1Q Kb3 Qaa7 Ra1 Qd2 Ra5 Be3 Ka2 Bc5 Rf6 Ke7 Ka1 Rc6 Rf5+ Rf6 Rg5 Re6 Rf5+
r1NQ1Qn1/1Pr1b2n/N1p2bNp/4p1RB/b1PNQ2Q/B3K3/q5k1/1n4B1 b - - 0 1 illegal: No possible last move
R3n3/2R1B3/2nr1bBQ/1b2R2B/pk2pR2/1Q2q2p/PQ2bP2/1rN1rBK1 b - - 0 1 illegal: No possible last move, all moves rejected
B2q3k/pp2n1p1/PPQB3Q/5RrQ/Qq2NBr1/5K2/5bR1/1Rn1Bq1b b - - 1 2 illegal: Other
3Nbb2/3Nk3/BB1P1r2/q1R5/n1pq3p/r1QQN2B/p1KQ3P/Q1n2r1N b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 g5 f4 Kd7 f6 Ke8 b4 Be6 f5 Bd7 Ra3 Be6 Rf3 Bc8 Rf4 gxf4 d4 a5 Kd2 c5 g4 e5 f7+ Ke7 g5 h5 f6+ Kd6 g6 e4 b6 h4 b5 f3 b7 e3+ Kc2 f2 g7 a4 b6 e2 Qd3 e1Q Be3 a3 Ne2 a2 Nbc3 Na6 b8Q+ Kd7 d6 Nh6 g8B Qa1 b7 Ke6 d5+ Kd7 Ng3 Qe8 Nd1 Kd8 d7 Qe7 Qe5 Nb8 Qec3 Na6 b8Q Rh7 Qbb2 Ng4 Qcd2 Qe6 Qbc3 Ne5 Bd4 Rh6 Ne3 Qb6 Bh3 f1R Bh7 Be7 f8N Qa5 f7 Rhf6 Rg1 Bb7 Nh1 Bc6 Rg8 Bd6 Rh8 Ke7 d8N Be8 Nd7 Ra7 B7f5 c4 Bb6 Ba3 Bfg4 Nc5 Rh6 R6f4 Rc6 Na4 Rc5 Rf6 Bf5 Qe1 Qa1 Qg3 Q3c3 Qg7 Bfg4 Nd3 Be6 Kd6 Beg4 Nc1 f8Q+ Qe7 Qg8 Qe5 Qg6 Ke7 Qgd3 Ra8 Nb8 Qf4 Bc8 Qd4 Nd7 Rb8 Bc7 Rb3 Ba6 Bb4 Bb6 Ra3 Rc6 Bd6 Rc7 Bf4 Rc8 Bh6 Rc5 Bf8 d6+
B1bk2B1/5RQR/2nQ1bp1/rP2q1p1/1r3R1n/1p3BPb/2Q1RN2/3KB1q1 b - - 0 1 illegal: No proof kernel
BkrQn1Nr/1n1Q1pRN/qrQ5/4QPK1/q5N1/1b2R3/Pp2pR2/1R2b3 b - - 0 1 legal: proof: e4 a5 g4 d5 exd5 c5 b4 h5 bxa5 Kd7 gxh5 Ke8 Ba3 Qc7 Bb4 cxb4 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kc7 Kf4 b5 h4 e6 d4 b3 c4 b4 a6 b2 d6+ Kb6 c5+ Ka7 d5 b3 h6 g6 h7 Qe8 c6 e5+ Kg5 e4 f4 e3 h5 e2 h6 Qe5+ f5 Qe8 c7 Qa4 d7 Ne7 d8Q Bb7 d6 Be4 d7 Bc2 Nf3 Qa3 Rh3 Nc8 Ne5 Qa4 Ng4 Nb6 Re3 Be4 Bg2 Nd5 Nc3 Nf6 Rb1 Bc2 Ne4 Ne8 Nef6 Nc6 c8N+ Kb8 Qd2 Bb4 a7+ Kb7 Qc1 Be1 Ne7 Rc8 a8R Bd1 Ra6 Kb8 Neg8 Na5 Ba8 Nb7 Qc6 Bc2 Qe7 Bd1 d8Q Bc2 Ra1 b1R Qed7 Rb2 Rb1 Bd1 Rf3 Bc2 Rf2 Bd1 Kh4 g5+ Kh5 Bc2 Ra5 Bd1 Re5 Qa6 Re3 Bc2 Ne5 g4 Kg5 g3 Neg4 g2 Ne7 Rf8 h8R g1Q Rh7 Rh8 Neg8 Qh2 Rg7 Qf4+ Kh4 Qfa4 h7 Bd1 Kg5 Rd2 N4h6 b2 Nhg4 Bb3 N8h6 Rf8 h8Q Rd6 Nhg8 Re6 Qh6 Rd6 Nh7 Re6 Qhf6 Rd6 N8h6 Rh8 Ng8 Re6 Qb5 Rb6 Qbc6 Bd2 Qfc3 Be1 Qe5+
1R1BK3/1p2p1Q1/r1k1B3/Prq1bn2/8/NQrnR2p/1PBqbBR1/Q6R b - - 0 1 illegal: No proof kernel
R5R1/bpn2kN1/B2prB2/1b1bQB1p/B7/Qq5R/1P1rr2P/1K1QQb2 b - - 0 1 illegal: No proof kernel
1bRQQr2/N1n2pKb/pRQp2p1/kN1q2P1/4N2B/2nP3r/5nQ1/3RN3 b - - 0 2 legal: proof: f4 b5 g4 h5 a4 e5 axb5 c5 fxe5 c4 g5 c3 Bh3 Ba6 Bg4 hxg4 bxc3 Rh7 c4 Bc8 c5 Rh8 Kf2 d6 Kg3 Kd7 Kf4 Kc7 h4 g3 e4 a6 c4 g2 h5 Be6 h6 Rh7 c6 Kb6 c7 Be7 c8Q Bd5 Kf5 Qd7+ e6 Nf6 c5+ Ka7 d3 Bf8 c6 Kb6 c7 Ne8 e5 Bb3 Qg4 Qe7 Nf3 g1N Na3 Bd1 Bf4 Bb3 Rc1 Ba4 Bg3 Nh3 Rhd1 Qd8 e7 Bb3 e6 Nf4 Ne1 Ka5 b6 Bc4 b7 Nd7 b8R Nc5 Rb6 Ne4 Qf3 Rb8 Qg2 Ne2 Qb7 Bb5 c8N Bd7 Nb5 Nf2 Nca7 Bc8 Rc7 Nc3 Rc5 Rh8 h7 Qd7 Rc7 Qc6 Qa8 Qc4 Qab7 Bd7 Qbc6 Rd8 Rc8 Qd5+ Be5 Nc7 e8N Na8 Nf6 Be7 Ne4 Rdg8 Qc5 Bd8 Qc4 Bc7 Qc6 Be8 e7 Bb8 Rc1 Nc7 Rd1 Qa2 Bg3 Qd5+ Kf4 Nh3+ Kg4 Bd7+ Kh5 Bf5 Bf2 Rd8 Bg3 Rhg8 h8Q Nf2 Qh6 Rdf8 e8Q Rh8 Qd8 Bh7 Qe6 g6+ Kh6 Bg8+ Kg7 Rh3 Qee8 Bh7 Bh4
nKb1RR2/3Qp3/p5pN/1RQnBNP1/2qn1R1r/r1Qp4/4P1N1/k1b3N1 b - - 0 2 legal: proof: f4 b5 d4 h5 a4 c5 axb5 h4 dxc5 h3 g3 g6 Bg2 hxg2 f5 Bh6 Nf3 g1B f6 Bd4 Ng1 Bf8 Ra5 Be3 Ra6 Beh6 Ra1 Bhg7 fxg7 Qb6 Na3 Qc7 Nb1 Qd8 Kf2 d5 Kf3 Kd7 h4 Ke6 c4 Ke5 b4 f5 c6 f4 h5 d4 c7 a6 b6 Ra7 h6 Bd7 c8Q Be6 b7 Qb6 b5 Qa5 b6 Qc5 h7 Nh6 g8N Ra8 g4 Nf7 g5 Nd7 b8R Qa3+ Nc3 Bg7 c5 Ra7 b7 Bf8 c6 Nb6 c7 Qc5 Nd5 Bf5 Ne3 Bg7 Ra5 Nd6 Rb5 Na8 Rh4 d3 Nh6 Kd4 Qc2 Bf6 Qd7 Qc4 Rf8 Bg7 b8Q Rb7 c8N Rc7 Qb7 Be6 Qdc6 Nf5 Nd6 Bc8 Ng2 Be5 Qd2 Bf6 Qe3+ Kc3 Qec5 Nd4+ Ke4 f3 Rf4 f2 Ndf5 f1N Bb2+ Kc2 Qd7 Kb1 Qbc6 Ne3 Re8 Nd5 Rf8 Rg8 h8R Rg7 Re8 Rh7 Rhf8 Rb7 Qcc7 Rh8 Qa5 Bg7 Qc3 Rb6 Ra5 Rb3 Rb5 Ra3 Ng8 Rh4 Ngh6 Nf6+ Ke5 Nb3 Ba1 Nd5+ Ke6 Bd4 Qa5 Be3 Be5 Bc1 Qc3 Bb7 Qdc6 Ka2 Kd7 Nd4 Kd8 Bc8 Qd7 Nf6 Qc2+ Ka1 Qb3 Nb6 Kc7 Na8+ Kb8 Nd5 Qc3+
1Q1Qrrqk/RN5n/p3b1pn/1NBnQRRP/p2b2PR/3N1p1K/8/4N3 b - - 0 1 illegal: No proof kernel
NN3QbQ/Rp1q2pN/4p1k1/1n2K3/1QQrn2P/2p3B1/R1Rr2Pb/3q3N b - - 0 1 illegal: No proof kernel
3K2bB/p1n4Q/q4pB1/q1QBqk2/rb1Qp3/P1B1Qn2/NNpRP2N/8 b - - 0 1 illegal: No possible last move, all moves rejected
bq3kB1/R1p4K/p2QpBr1/1rB2Q1N/Q5Rb/3pP3/R2P1pb1/4RQ1n b - - 0 1 illegal: No possible last move, all moves rejected
r1QB3B/4n1P1/B3RR1n/1R3b2/n1R3r1/Nk3r1b/qBR1KPb1/Rb6 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qd8 h4 Nf6 g4 Bh6 h5 Ne4 Nd2 Ng3 Ndf3 Ne4 Nh4 gxh4 g5 Nf6 g6 Bf8 g7 Ng8 Ra6 Nf6 g8R e5 Ra1 Nd5 Rg6 Be7 Re6 Nf6 Rea6 Bd6 Bh6 Bf8 Bg7 Ng8 Rg6 Nf6 h6 Rg8 Bh8 Bg7 hxg7 Rf8 Kd2 h6 Ke1 h5 b4 Ke7 c4 a5 c6 d5 c5 e4 b6 e3 c7 h3 c6 Kd6 b7 a4 b5 Kc5 b6 Kb4 Bd3 h4 Ra2 h2 Rd2 a3 Kf1 e2+ Ke1 h3 Rg2 a2 Rg6 a1R Ba6 d4 Qc1 d3 Rc2 Kb3 Nf3 Ra4 Ne5 Ng8 f6 Qd5 f7 Nh6 Nc4 Bf5 Na3 Rg4 c8R Qe6 c7 Nc6 b8B Ne7 Rf1 h1B b7 h2 Re8 Bhe4 c8R h1B R8c4 Bhg2 Be5 Bh3 b8B Beg2 Rg5 Qd5 Kd2 e1N Bbc7 Qe6 Ke3 d2 Bd8 Nd3 Ke2 Nc5 Rh5 Qd5 Bb2 Na4 Re1 Ng6 Re6 Ne7 Rf1 d1B+ Ke1 Rg8 f8R Bdf3 Rg1 B3e4 Rff6 Rf8 Ke2 Qa5 Qd2 Rf7 Ra1 Qd5 Qc1 Qa5 Rd2 Bb1 Rdc2 Rf8 Rc7 Bh7 Rf4 Qd5 R2c6 Rf7 Rff5 Kb4 Rhg5 Qa2 Rgg6 Kb3 Rb5+ Rb4 Rcc5 Rf4 Rgf6 Rf3 Rc8 Bhe4 R5c7 Bef5 Qc6 Nf7 Qb7 Nh6 Rc2 Bg6 R8c6 Be4 Qc8 Bef5 Rbe5 Rd4 R6c4 Rg4 Rb5#
4K2N/4NR2/1k4q1/2n1q2b/3B2qR/nBP3R1/BPBrqb1r/1R1q2BN b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 f4 g6 g5 Ba6 fxg6 Bc8 Qg4 hxg4 f5 Bb7 Nh3 Ba6 Ng1 Bc8 Ke2 d5 Ke3 Kd7 Kf4 Kc7 Ke5 a5 h4 d4 b6+ Kb7 g7 g3 g6 d3 h5 d2 h6 d1Q h7 g2 f6 e6 f7 a4 Nh3 g1Q Nc3 a3 Nf2 a2 Nd5 Qd2 c3 Ra6 Bd3 Ne7 Kf6 e5 g8B e4 g7 e3 Rh4 e2 Bc2 e1Q Rb1 a1Q Nh1 Nf5+ Ne7 Qde2 Be3 Qd7 Bd4 Nd6 Bb3 Ra8 c6+ Ka6 c7 Qdg4 b7 Nc4 Bc2 Na3 Bb3 Bd7 c8B Be8 Bf5 Ka5 Be4 Na6 b8B Nc5 Bec2 Kb6 Bh2 Rd8 Ba2 Q1g2 Bhg1 Rd7 Nf5 Bd6 f8R Bg3 Ne7 Bf2 Bgb3 Bh5 g8R Q1d1 Rg7 Qd5 Rg6 Qde5+ Kf7+ Rd6 Ke8 Qdd3 Rf1 Qc1 Rd1 Qcg5 Ra1 Qdd1 Rb1 Qgf6 Be3 Rd2 Bd4 Rg8 h8N Rg7 Bc4 Rh7 Rf7 Qfd6 Rg8 Qdg6 B4b3 Qgg7 Ra1 Qgf4 Rb1 Bg6 Rg4 Rh2 Ng3 Bh5 Rh4 Qgh6 Rg5 Qg6 Nh1 Qff3 Rg2 Qfg4 Rg3
4q1rb/NB4Pr/1BB2B2/K2n4/1NrR1r1r/2bqR2k/3R2P1/N1N1B2n b - - 0 1 illegal: Other
3b3Q/2r2nPn/R1N1RPqB/n1q3N1/N1k3KR/N1N2N1n/2r3b1/1q4R1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 Bh3 Kf7 fxg5 Be6 g6+ Ke8 g5 Bc8 Bg4 hxg4 Ke2 Kd7 h4 Kd6 d4 e5 b4 a5 g7 c5 h5 g3 Kf3 c4 g6 c3 f6 g2 b6 a4 b5 a3 h6 a2 b7 c2 b6 Bd7 h7 Bf5 Bh6 c1N Rh4 Qe8 Nc3 Bc2 Kg4 e4 Nf3 e3 Qh1 Na6 b8R g1N b7 e2 Rc8 e1Q b8N Be7 Nc6 Nb3 Na7 Qf7 Re8 Bd8 Re3 Nac5 Re6+ Kc7 d6+ Kb6 d5 Nd7 Nab5 Kc5 Qh3 Nf8 d7 Qb1 d6 Na5 Qh2 Ra7 Qh1 Bc7 d8N Nh3 d7 Be4 Nb7+ Kc4 Nc5 Bd8 N5a4 Rc7 Qh2 Qb4 Rg1 a1Q Qh1 Be7 d8N Qc5 Nc6 Qb1 Qh2 Bd8 Qh1 Ne7 g8R Nc8 g7 Nd6 Qh2 Ng6 Rge8 Nf8 R8e7 Rg8 h8N Nh7 Qh1 Qe8 Nf7 Rh8 N7g5 Qg6 Rd7 Nf7 Rdd6 Rf8 Nb8 Rh8 Ra6 Re8 Nc6 Bd5 Nh2 Bg2 Nf3 Ree7 Qh2 Red7 Qh1 Rd2 Qh2 Ra7 Qb8 Rc7 Qc8 Rc2 Qa8 Be7 Qh8 Bd8 Na3+
1NR5/1k1P1rNN/n5Nn/Qq5n/RN1q1r2/1b2R2K/r2N1P1B/3b2rR b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 g6 h4 b4 h5 b3 axb3 Kd7 b4 Ke8 b5 Bg7 Rh2 Bh6 Rh1 Bf8 g4 Bd7 g5 Bg7 h6 Kf7 hxg7 Nf6 g8N Nc6 Be2 Nb8 Bh5 gxh5 g6+ Ke8 g7 Bc8 Kf1 Kd7 Kg2 c5 d4 Kc7 b4 e5 Nf3 a5 Qg1 a4 Bg5 h4 Nh6 e4 g8R a3 Ne5 a2 Nd2 c4 Rh2 e3 Qd1 h3+ Kg3 e2 Qa4 e1Q Bf4 c3 Re8 Ng8 f6 c2 f7 c1R f8N Bg4 Nf5 h5 Ng7 Ra7 Neg6+ Qe5 d6+ Kb6 d5 Na6 Re6 Rf7 Qa5+ Ka7 b6+ Ka8 b5 Rg1+ Rg2 Qf5 b7+ Kb8 Nb3 h2 Re3 h1B Qa3 Rf1 Qa5 Bd1 Nd2 h4+ Kh2 h3 Rg1 Rh6 Nh7 Rh4 Bg3 Ka7 b8R Nh6 Rc8 Qb6 Be5 Qd4 Kg3 h2 b6+ Kb7 Bf4 Qd7 Be5 Qb5 Bf4 Rg4+ Kh3 Re1 Bg3 Rgf4 Rf1 Be4 Rg1 h1N Bh2 Ng3 Rh1 Qbd3 Rb1 a1R Rb4 Nh5 Ra4 Nb8 Nf5 Qa6 Ng7 Ka8 b7+ Ka7 d7 Ra3 d8N Ra2 d6 Bec2 d7 Bb3 Qf5 Rg1 Nc6+ Kb6 Qd5 Qe2 Qe5 Na6 b8N Kb7 Qa5 Qb5 Nb4
q4NB1/1B2nB2/1PN2bR1/r2Nn1P1/B3nBb1/B2r2N1/pK3Qk1/2n3n1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 h4 g5 hxg5 c5 b4 Ke7 b6 Nh6 b5 Ke8 Ra4 Ng8 Rb4 cxb4 d4 Kd7 Kd2 f5 Kc2 a5 g4 h5 e4 h4 d6 Ke6 d5+ Kd7 b7 a4 g6 b3+ Kb2 h3 g7 f4 b6 h2 g5 f3 Qe2 f2 Bg2 f1N Qf2 Ra5 Nc3 Nd2 Nge2 Ne7 g8B Rh3 Ng3 Nbc6 b8B Bg7 Bf3 Bf6 e6+ Ke8 e5 Ne4 Re1 h1N d7+ Kf8 d6 Kg7 Bc7 Kg6 Nd5 Qf8 d8N a3+ Ka1 a2 d7 Qe8 Ba3 Qf8 Kb2 Qe8 Ne2 Kf5 Bg2+ Rf3 Ng3+ Kg4 Re2 Rd3 Rd2 Nd4 Nc6 Nf3 d8N Ng1 Bf3+ Kh3 Rd1 Ng6 e7 Bg4 Ne6 Qa8 e8B Ne7 Bg6 Bf5 Nf8 Bg4 Qd2 Nhf2 B6f7 Kh2 Qe3 Kh3 Qd4 Kh2 e6 Kh3 Bf4 Kh2 Kc1 b2+ Kc2 b1N Kb2 Nbc3 Qe3 Nf5 e7 Nce2+ Qd4 Nc1 e8B Ne7 Re1 Nc5 Re6 Nd7 Be4 Ne5 Qc5 Bh8 Rg6 Bf6 Bf3 Ne4 Qf2+ Kh3 Bd1 Rf3 Ba4 Rd3 Bd7 Nf5 Bc8 Ne7 Qe3 Kh2 Bb7 Kg2 Qf2+
rN1Br3/R1b2NnB/1P3N2/2n4N/2n1rk1P/1r1R3K/1q3pB1/b3NR1R b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Bf5 gxf5 Bc5 Qb3 Be7 Qh3 Bf8 Qg4 hxg4 Kf2 Ke7 Kg2 c5 h4 g5 b4 a5 d4 c4 e4 g3 e6 Kf6 e5+ Ke7 b6 g4 b5 c3 b7 c2 b6 a4 Nc3 a3 Nf3 a2 Ne2 Nh6 Ne1 Nd7 b8N Nc5 d6+ Ke8 d7+ Ke7 Bd2 c1N d5 N1d3 Bc3 Qc7 d8N Nb2 Nf7 Nc4 Bd2 Qc6 Bb4 Qb5 d6+ Ke8 d7+ Ke7 Ba3 Qb2 d8R Rg8 Rd3 f3+ Kg1 g2 Kh2 g1R Bg2 g3+ Kh3 Bg7 Bb4 Re8 f6+ Kf8 Bd2 Nf5 e7+ Kg8 e6 Kh7 Bf4 Kg6 Bc7 f2 Bd8 Bh8 Rb1 a1B Rbd1 Rg8 e8B Ng7 e7 Kf5 Bec6 Re8 Bce4+ Ke6 Bh7 Rf1 Bf3 g2 Ng3 g1R Bfe4 Qa2 Bg2 Qb2 Ng5+ Ke5 f7 Kf4 f8R+ Qf6 Nf7 Qb2 Nc2 Re1 Rg8 Nh5 Rg7 Re4 Rc1 Rd1 Ne1 Rd2 Rb1 Rc2 Rc1 Rc3 Rf1 Rb3 Rb1 Rg8 e8N Rf8 Nf6 Rfe8 Rg5 Ng7 Rgd5 Qa2 Rd7 Be5 Ra7 Bc7 Rh1 Qe2 Nf3 Qa2 Rbf1 Qb2 Ne1 Qe5 Bg8 Nge6 Nfd7 Bf6 Bh7 Ng7 Ra6 Qa1 Ra7 Bc3 Nf6 Qc1 Nfd7 Ba1 Nf6 Qb2 Ngh5+
q3bRk1/6Nn/4RB1q/3qB2P/Rn3BPp/rr3R2/N1B3b1/1qBNK3 b - - 0 1 illegal: No proof kernel
BK2B2b/4b1P1/B1RNNn1n/B3b2r/pkqN2b1/1B1PQ3/8/Bb4Nn b - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 b5 a4 g4 axb5 g3 b6 Nh6 b7 Nf5 hxg3 Ne7 g4 Ng8 g5 Qe7 Nh3 Qf6 Ng1 Qd8 b4 d5 b5 a5 c5 Ra6 Ra4 Rb6 Rc4 dxc4 cxb6 a4 Kf2 Kd7 Kg3 f5 Kf4 c5 e4 h5 g4 c3 g6 h4 e6+ Kd6 g7 c2 e7 c4 e8B Kc5 Ke5 f4 g5 h3 g6 c3 Bc6 f3 Na3 h2 Qe1 f2 Qe3+ Kb4 Bb2 c1B Nc4 c2 Ba1 Ba3 Nd6 Ne7 g8B c1B Bb3 Na6 b8N Bd7 b7 Bh6 b6 Be6 Nd7 Nc7 b8B Ka5 b7 Ned5 Ba6 f1B Nf8 Nb5 Bc7+ Kb4 b8N Bd3 Ba8 Bb1 d3 Bg4 Ne6 Nd4 Bb6 Bcb2 Nc6+ Kc3 Bc7 Nf5 Ncd4 Nf6 Ba5+ Bb4 Qe2 Qc8 Qe3 Nh7 Kd5 Bg7 e5 Qg8 Kc6 Nf6 Kb7 Rh5 Kc7 Bh8 g7 Nh6 Kb7 Qf7+ Kb8 Qg8+ Nd8 Qc4 e6 Qd5 e7 Qc4 Bc7 Ba3 e8B Kb4 N8e6 Bc3 Ngf3 Bcb2 Rc1 h1N Bd8 Qd5 Rc6 Qc4 N4b5 Be5 Ng1 Bab2 Bb6 Bbd4 Bc7 Bb6 Nbd4 Bc5 Ne4 Bf8 Nd6 Be7 Ba5+
1BrQ1rRr/2rR1R1R/2k5/2BqN2K/pR1b4/q1B4R/n4P1P/3Br2n b - - 0 1 legal: proof: g4 f5 c4 b5 e4 d5 cxd5 h6 a4 Kd7 axb5 Na6 Na3 h5 Nc4 Ke8 Ne3 Kf7 gxf5 Nb4 Ng4 hxg4 f6 Na6 Nf3 Bf5 exf5 Ke8 Ng1 Nb8 Ke2 Kd7 d4 a5 b4 g5 b6 c5 b7 e5 f7 a4 f6 g3 Kf3 g2 Kg4 e4 b5 c4 d6 c3 d5 c2 b6 e3 Be2 Nh6+ Kh5 g4 Nf3 g1R Bb2 c1R Ra3 g3 Bc3 Bg7 f8R g2 f7 Rf1 Rg1 Na6 b8R Re1 b7 Ra7 Qd4 Qe7 Bd1 e2 Rg8 Bf6 f8R Nb4 Rf7 Na2 Rgg7 Rc2 Rh7 Nf5 Rg8 Be5 b8B Rc7 Rb3 Rc1 Rb4 Bf6 Qb6 Bd4 Rg3 Rcc8 Rh3 Rcf8 Qa5 Rf1 Qa8 e1Q Qa5 Qe6 Qa8 Re1 Ne5+ Ke8 d7+ Kd8 Ba7+ Kc7 d8R Qc6 Bc5 Ng3+ Kg4 Nh1 Kh5 Qb5 Qa5+ Kb7 d6 Rc2 d7 Rc1 Rf1 g1R Rc8 Qd6 Qd8 Rgg8 Rg1 Qd5 Rc6 Qb3 Rd6 Qa3 Rg4 Re8 Rgg6 Rgf8 Rg8 Rc2 Qf6 Re7 d8B Rc7 Rdd7 Rc1 Bde7 Rc2 Bed6 Rc1 Nf3 Kc6 Qd8 Rc8 Bb8 Qc4 Bca7 Rc7 Bb6 Qd5+ Ne5+ Kb7 Rd6 Re7 Bb2 Rc8 Bc3 Rec7 Rdd7 Qc4 Ng4 Kc6 Bc5 Qd5+ Ne5+
N2R1KRN/3R2r1/1QR1r2b/1r2pb2/n2qbRB1/4P1PR/4k2N/1N3rq1 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 cxd5 a5 b4 Nc6 f4 Bg7 fxg5 Bf8 Ba3 Nd4 axb5 Kd7 b6 Nf5 b5 Ng3 hxg3 Ke8 Bb4 axb4 Kf2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kc4 d4 f5 g6 h5 d6 c5 b7 h4 b8N b3 e3+ Kb4 b6 h3 d7 b2 Ke6 f4 Kf7 e5 b7 f3 d5 f2 g5 c4 d6 c3 g7 c2 g6 c1Q Ra6 h2 Nf3 Qa5 d8N Qac5 d7 Bd6 Rc6 Nf6 g8R Ra6 g7 Nd5 Be2 f1R Rf8 Nc3 g8R Na4 Qd4+ Q5c4+ Ke8 Rh7 Nf7 Rg7 d8R Bf5 Nd7 Be7 Nh8 Bg5 Nb6 Bh6 b8R Kb5 Nbd2 b1R Rb7 Kb4 Qd6+ Kc3 Rbd7 Rb5 Na8 Kc2 Nb1 Rab6 Rg1 h1B Nh2 Bhe4 Bg4 Qe1 Rh1 Qc5 Nc3 Qd4 Nb1+ Kd3 Qc5 Ra6 Qb6 Qf2 Rff7 Qg2 Kf8 Qg1 Nf3 Ke2 Rh3 Bg6 Rf4 Bgf5 Rdd6 Raa7 Rd5 Rae7 R5d7 Re6 Nh2+
3RnNB1/n3N3/1K3BN1/2r1b2k/rnb2p2/N1PRbPr1/R1BB4/5Bb1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 h5 g4 c5 b4 f4 bxc5 Qe7 Qd3 Qh4 Qh3 Qf6 Qf3 Qf5 gxf5 Nc6 Qg3 Nb8 Qg4 hxg4 Kd2 Kf7 Kd3 d5 Kd4 g5 h4 a5 e4 g3 c6 g2 e6+ Kg7 c3 Kh6 e5 a4 f6 a3 e7 g4 Kc5 d4 b6 a2 f7 d3 c7 d2 h5 d1R b7 g3 e6 Na6+ Kb6 Nb4 e8B Ra7 b8R Ra8 e7 Rd4 Bd2 Nc6 Na3 Rda4 Rh3 Bg7 f8N Nf6 Bg6 R8a5 e8B Be6 c8N Rg8 Nf3 g1B Ne5 g2 Bc2 Rc5 Neg6 Na7 Bf7 Ne8 Rd3 Be5 f3 Be3 Nce7 g1B Rbd8 Bc4 Be6 Kg5 h6 Kh5 h7 Rg7 h8B Rg8 Re1 a1N Bf6 Rg7 Re2 Rg8 Bb1 Nc2 Bf7 Rg7 Bg8 Nb4 Bc2 Ba2 Nh8 Rg3 Nhg6 Be6 Re1 Ba2 Ra1 Bc4 Ra2
Bn4Q1/n1p1B2R/3nNnN1/K2Nr3/2q1kn1q/7B/2P1NNP1/1NnB3b b - - 0 1 illegal: No proof kernel
1nn4q/2Bn2p1/r3NPr1/r2R2Bb/1P2Rp2/3R1N1B/3R1N1N/1Nk2K1b b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 d4 Ne7 dxc5 Ng8 g5 Bd6 Qd4 Be7 Qg4 Bf6 gxf6 hxg4 h4 Kf7 e4 Ke6 c4 d5 b4 a5 h5 d4 c6 g3 c5 d3 c7 a4 c6 g2 h6 a3 h7 a2 b6 Qd6 b7 Bd7 c8R Be8 c7 Qd4 Rh3 Nd7 b8B Qa7 Nf3 g1R Bg5 f4 Nh2 Rg2 Rd8 Qa6 c8N Ra7 Nd6 Bh5 Bc7 Qc8 Re3 Rg4 Bh3 d2+ Kf1 d1B Rd3 Ne7 Rd5 Rf8 h8N Nb8 Ng6 Bf3 Nh4 Bh1 N4f3 Rf7 Na3 Ra4 Rad1 a1N R1d3 Ra6 Nb1 Nb3 Re8 Rf8 Rd2 Rb6 Bh6 Na6 R5d3 Nbc5 Rd8 Nf5 Rd7 Rg6 Bg5 Rg8 Nf7 Qb8 R7d5 Nd7 Nh6 Rb5 N6g4 Ra5 Nf2 Rc8 Bd8 Rc6 Bc7 Qh8 Na3 Kf7 Nb1 Nd6 e6+ Kf8 e7+ Kf7 e8R Nab8 Ree5 Nc8 Rf5 Ke6 e5 Rd6 R5d4 Rda6 Re4 Qf8 Nd4+ Kd5 e6+ Kc4 Rd5 Qh8 e7 Bg4 e8N Bd1 Bd6 Bh5 Nc7 Qf8 Nc3 Qh8 Ndf3+ Kb3 Ne6 Ka3 Bc7 Kb3 Rd1 Kb2 R1d2+ Kc1 Nb1
B1qR1NR1/NR1bPnb1/RNr1pR1B/6k1/1rb1P3/4n3/2pN1K2/1rB5 b - - 0 1 illegal: No possible last move
1B2Q2n/3r1PN1/5pqN/1B2N2N/1R2B1n1/1r1p1NP1/1b1qn1BN/kb5K b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Nc6 d4 Nb8 dxc5 Qc7 Ra3 Qb6 Ra1 Qd8 exf5 Ba6 f4 Bb7 b4 Qc8 f6 Nc6 f7+ Kd8 f5 Bg7 f8N Nb8 f6 Ke8 Ra2 Qd8 Ra6 Bc8 Rc6 Qb6 f7+ Kd8 Rf6 exf6 Bd2 Ke7 Bc1 Qd8 Kf2 d5 c4 a5 c6 Kd6 g6 Ke5 c7 h5 c5 d4 c6 d3 b6 Kd4 g3 a4 Kg2 h4 b7 a3 b5 a2 b6 a1Q Ne6+ Kc4 Nh3 Kb4 Qe2 Kb3 Nd2+ Ka2 Nhf4 Ra4 Nh5 Ra5 Nf3+ Kb1 Nh2 Qa2 Bf4 Bh6 g7 Ne7 g8N Rb5 Neg7 Be6 c8B Rb3 c7 Nbc6 b8N Ka1 b7 Nd4 Nd7 Ng6 b8N Qd2 Ba6 h3+ Kg1 Bg5 Nh6 Qg8 c8B Bd5 Qe8 Ne2+ Kf2 Qh7 Nc6 Rf8 Bc7 Nh8 Nde5 Qg6 Bb8 Bf4 Nef3 Be5 Rg1 Bb2 Bf5 Bc4 Nce5 Be6 Qc8 Rd8 Bb5 Rd7 Be4 Bd5 Qe8 Bc4 N2g4 h2 Kg2 h1N Ngh2 Nf2 Rh1 Ng4 Rg1 Ra3 Kh1 Ba2 Bg2+ Bb1 Rc1 Rb3 Rc4 Qf4 Rd4 Qd2 Rb4
B2q2B1/3p1b2/rr1N1qR1/b5N1/1pP1P3/k1b2N2/B2QK1NB/3BnB1n b - - 0 1 legal: proof: b4 a5 bxa5 c5 a4 e5 g4 f5 gxf5 h5 f4 c4 fxe5 c3 dxc3 Qc7 c4 Kf7 c5 Qd8 Ra3 Ke7 Rg3 Ke8 Rg4 hxg4 e4 Ke7 h4 b5 h5 g5 c6 g3 h6 g4 f6+ Ke6 h7 b4 f7 g2 a6 g3 a5 Be7 f8N+ Kf7 c7 Bc5 a7 Ke7 e6 Qe8 a6 Qd8 Nd2 Kd6 e7 Bb7 c8B Bd4 e8B Kc5 Ne2 g1Q Nf4 g2 Nf3 Nc6 N8e6+ Kb6 Qd2 Ka5 Neg5 Ka4 Bh5 Nh6 Ke2 Nf5 c3 Qh2 Rg1 Qh4 Bg4 Rf8 h8N Rf6 Nhf7 Ne5 Nd6 Bd5 Bb7 Bf7 Bd5 Nd3 Ba2 Ne1 c4 Bc3 Bb2 Rb8 a8B Rb6 a7 Re6 Ba1 Ka3 Bd5 Rh6 a8B Ng3+ Kd1 Nh1 Ke2 Bg6 Bg8 Bf7 Bh5 Ra6 Nb7 Rhb6 Nd6 Bg7 Bd4 Bh8 Bf2 Bc3 Bg4 Qh8 Bg3 Qhf6 Bh2 Nf2 Rh1 g1B Ng2 Ka4 Be5 Ka3 Rh6 Nh1 Rg6 Be3 Bh2 Bf4 Ne8 Bc7 Bh5 Re6 Nd6 Ba5 Nf5 Rec6 Nd6 Rcb6 Nfh4 Nc2 Kd3 Rc6 Bd1 Ne1+ Ke2 Rcb6 Nhf3
4bN2/R2prR2/qq2N1Kp/1k4pr/2Nn2P1/n2P2N1/b1B5/1R1N1BBR b - - 0 1 legal: proof: e4 c5 a4 a5 h4 b5 b4 f5 bxc5 g6 exf5 Kf7 h5 Ke8 h6 Bg7 hxg7 Ra7 Qg4 Ra8 Qb4 axb4 axb5 Qc7 Rh5 Qb6 Rh1 Qd8 Ke2 e5 Ke3 e4 Kf4 h6 g4 b3 c4 b2 d3 e3 b6 e2 c6 e1Q c7 Ne7 g8B Nbc6 f6 Ra5 b7 Na7 b8R Nb5 f7+ Kf8 c5 Qe2 c6 Nf5 Be3 Ke7 f8N Kd6 Nc3 b1B Ne6 Ra3 Nd1 Qd2 Ne2 Kd5 Ng3 Rb3 Ra7 Ba6 c8R Qb6 c7 Kc6 Rf8 Rc3 c8N Rh7 Rf7 Nfd4 Nd6 Na3 Nc4 Kb5 f3 Qe2 Bg1 Qa2 Ke5 g5 Kf6 Rc2 f4 Rh2 f5 Rh5 Kg6 Qa1 f6 Ba2 Re7 Bb7 f7 Bd5 f8N Be4+ Kf6 Bg6 Rg7 Be8 Rf7 Qc3 Kg6 Qa5 Rbb7 Ka4 Rb8 Qba6 Rb2 Q5b6 Rb1 Qb7 Na5 Qab5 Nf4 Rh8 Kf6 Nb3 Rh7 Nd4 Bb3+ Kb4 N4e6 Q7b6 Re7 Q5a6 Nc4 Kb5 Rg7 Rg8 Rh7 Rg7 Bc2+ Nb3 Kf5 Re7 Rg7 Qe3 Rf7 Qeb6 Ra1 Nd4+ Kg6 Bb3 Rc1 Ba2 Rb1+
B2B4/R1nPbNpB/1N3N1q/rn2PQ2/1p5B/1K2pp2/r2N4/2N1r1Nk b - - 0 1 legal: proof: e4 d5 exd5 h5 a4 c5 b4 e5 g4 a5 bxa5 e4 gxh5 e3 f3 Bh3 Ra2 Bc8 Rb2 Bf5 Rb4 Be4 fxe4 cxb4 h4 Ke7 d4 Kf6 c4 b5 h6 b3 c5 b4 d6 b2 d5 Ke5 a6 Kf4 d7 Kg3 d6 f5 c6 f4 e5 f3 a5 Ne7 h7 Ra7 c7 Rb7 c8N Rb5 a7 Ng6 a8B Ne7 a6 Qc7 d8B Qc3+ Nd2 b1R a7 Rb2 d7 Nf5 h5 Qc4 h6 Nd6 Ne7 Rc5 Nd5 Ne4 Nf6 Qb5 Bd3 Kg2 Qc2 Nd6 Kd1 Rg8 h8N Qc6 h7 Rb5 Nf7 Qe4 h8N Ne8 Ng6 Na6 Nf4+ Kf2 Rh6 Qg6 Nfe2 Kg2 Bf5 Qh5 Bh7 Rb1 Qf5 Be7 Kc2 Ra5 Bb2 Nec7 Kb3 Rd1 Bc3 Re1 Nc1 Nb5 Bb7 Kh2 a8N Nac7 Nd5 Bf8 Nb1 Ra7 Ra6 Rh8 Bg6 Rf1 Nf6 Kh1 Be1 Be7 Nb6 Qg5 Ra5 Rh2 Ba8 Ra2 Nd2 Qh6 Bh4 Re1 Bh7 Nc3 Rb5 R7a4 Ra5 N3b5 Ra6 Ra5 Ra7
2RNbNr1/pQr1r1R1/1pR2Bp1/1P4KR/Pb1rk3/7R/p3R2N/2nN4 b - - 1 2 illegal: Other
q2kbq2/nb1N2p1/1R4RP/B5P1/1BrbB3/1RnN2KR/qBN4n/r2B4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 d5 fxe5 d4 g5 d3 cxd3 Ke7 d4 Nd7 d5 Ke8 Qa4 Nb8 Qg4 hxg4 Kf2 c5 h4 f5 b4 a5 d4 c4 e4 a4 d6 c3 h5 f4 d5 f3 e6 c2 d7+ Ke7 h6 a3 b6 a2 b7 Qe8 d8B+ Kd6 e7 Kd7 b5 Rh7 d6 Ra5 e5 Ra8 b6 Na6 b8R Nf6 b7 Nd5 Na3 Nc3 Ne2 Rh8 Rh3 Nb4 Rb1 a1Q Nf4 Qa2 Rb3 Nc6 Bd3 Na7 Bb2 c1Q Ba5 Qh1 Kg3 f2 Nc2 f1B Be4 Bb5 Bb4 Qf7 e8B+ Kd8 d7 Bc5 e6 Bd4 Nd3 Qf8 Bh5 Bc6 Kh4 g3 Bd1 g2 Kg3 g1N e7+ Kc7 d8R Nf3 Rd6 Nh2 Rg6 Ba4 e8N+ Kd8 Nf6 Be8 Nd7 Qd6+ N3e5 Rf8 Rf6 Bc5 Ba1 Qa3 Bb2 Nab5 Rg6 Rf4 Bg2 Qf8 Rh4 Rc4 Rh3 Bd4 Nd3 Qa4 Bg4 Qb1 Bd1 Qa6 Bd5 Qc6 Be4 Ra1 Ra8 Qd5 b8B Qa2 Raa6 Qa8 Be5 Bb7 Bc7+ Kc8 Bca5 Na7 Rab6 Kc7 Nf2 Kd8 Nd3
bN2b1r1/1q2bnB1/N1RpKB2/3Pb3/N5B1/2P1nQqB/1Nk1n3/2r2NN1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c5 b4 Qb6 Ra4 Qb7 b6 Qc7 b5 Qd8 Rb4 cxb4 Ke2 Kf7 Ke3 a5 Kf4 h5 Ke5 b3 g4 h4 f4 a4 d4 e6 f6 Kg6 f7 a3 f5+ Kh7 f6 Kg6 b7 a2 c3 a1N b6 b2 Na3 b1Q Bh3 Ra6 Nc4 Nh6 Qf3 Nc2 Nb2 Be7 f8B Ra1 f7 Rg8 Bg7 Ne3 Bd2 Qe1 Bf6 Rc1 Bg7 Na6 b8N Nc7 b7 Ncd5 Na6 Qb6 b8N Nf4 Rh2 Qg3 f8N+ Kf7 Bf6 Bb7 Rg2 Bc6 Bg7 Qb7 g6+ Ke8 g5 Ne2+ Qf4 Bb5 Bf6 Bc6 g7 Kf7 Bg4 h3 g6+ Ke8 Rf2 h2 Bh3 h1B d5 Bf3 Rf1 Bh5 Rf2 Qc8 Rg2 Ba8 Rh2 Qb7 Rh1 Rh8 g8B Kd8 g7 Be8 Bf7 Rg8 Bh5 Kc8 B5g4 Nf7+ Ke4 e5 Qf3 Kd8 Ne6+ Kc8 Nec5 Kd8 Nb4 Kc7 N4a6+ Kb6 Nca4+ Ka5 Rh2 Nc2 Kf5 e4 Bh6 d6 Ke6 Ne3 Rf2 Nf5 Rf1 e3 Rd1 Kb5 Rd4 Ka5 Rc4 Kb5 Nd3 Ka5 Rc6 Kb5 Rb6+ Kc4 Rc6+ Kb3 Ndb2 Rf8 Bd4 Rh8 g8N Kc2 Nf6 Rg8 Nh5 Qg2 Bhg7 Neg3 Nf4 e2 Nc7 e1B Nh5 Ne2 Bde5 Bg3 Bef6 Ne3 Nca6 Be5 Ng3 Qf2 Nf1 Qh4 Rc8 Qg3 Rc6
N1R2N2/prNn4/RQ3N2/P1Pnb3/2R1bqbq/5k1N/N3qR2/2rB1bK1 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Na6 g5 Nb8 g6 Qa5+ Bd2 Qd8 Bg5 hxg5 Kf2 Ke7 c4 Ke6 h4 Kf5 a4 Kg4 e4+ Kf4 e6 b5 e7 f5 e8N d5 c6 g4 c7 d4 c5 b4 h5 b3 h6 b2 e5 d3 e6 d2 h7 Qf6 e7 Qd6 Qb3 d1Q Be2 Nd7 Nc3 b1B Na2 Ngf6 g8R Nd5 g7 Rb8 Qb6 Rb7 Rh2 Be4 a5 Qd2 Rc1 g3+ Kf1 Qb4 Bd1 g2+ Kf2 Qh6 Rc4 Qh5 Nf6 Qa4 e8N Bd6 Rf8 Be5 g8R Qh4+ Rg3 Rg8 h8N Rg7 Qe6 Rb1 Qb6 Rc1 Rg8 Qh7 Rg6 Qh4+ Ke2 Qb4 Rh6 Kg3 Nh3 g1Q Rf2 f4 Ng6 Qh2 Kf1 f3 Nf8 Qd2 Rgh8 Qdf4 Rg8 Nb8 Rgh8 Bg4 c8N Nd7 Nc7 Re7 Rfc2 Qe2+ Kg1 Qd3 Rf2 Qe2 Qa6 Rg7 Nb6 Re7 Nba8 Rh7 Kh1 Rg7 Qb6 Rh7 Rh2 f2+ Rg2+ Kf3 Rg6 f1B Kg1 Rg7 Rf2+ Ke3 N8h7 Rf7 Rc8 Re7 Nf8 Rf7 Rh2 Kf3 Rf2+ Kg3 Qc6 Nc3 Na6 Nb6 Ng8 Rb7 N6c7 Nd7 Qb5 Nd5 Ra6 Nc3 Qb6 Nd5 Rh2 Kf3 Nf6 Bgf5 Rg2 Bg4 Rf2+
B2R3n/rbr3N1/2qR2r1/Bn3Kp1/1BP3P1/3B1Bb1/kr1R2R1/bNbN4 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 c5 fxe5 h4 d4 Nc6 dxc5 Nb8 Qd3 Be7 Qb3 Bf8 Qg3 hxg3 Kd2 Ke7 Kd3 Ke6 Ke4 g5 b4 a5 h4 g2 c4 a4 h5 a3 h6 f6 c6 a2 b6 d6 b5 Ra6 b7 Ne7 h7 Rg8 h8R Qc7 b6 Ng6 R1h2 Ra7 Bd2 Na6 b8R Bb7 R8h6 Nh8 Nh3 g1B Bb4 Rg6 Rg2 Bf2 Rd8 Bg3 Nf2 Bg7 Nd1 d5+ Kd4 f5 e4 f4 Bd3 Qd6 c7 f3 c8B+ Qd7 Rd2 f2 Rh2 f1R Rhg2 Nc7 Ke3 Ba8 b7 Rf7 b8B Nb5 Bb7 Qc6 Bc7 Bf6 Kf3 d4 Bca5 Rc7 Rd6+ Ke7 e6 Bg7 Rd8+ Kf6 e7 Ke5 e8N Bf6 Bc8 Bb7 Ng7 Be7 Bf5 Bc5 Be2 d3 Rd6 Bd4 Rd8 Bb2 Ke3 Bc1 Bf3 Kf6 e5+ Kf7 e6+ Kf6 Na3 Ke5 Rb1 a1B e7 Be1 e8B Bh4 Bd5 Bg3 Kf3 Kd4 Rb3 Qd6 Nb1 Qe6 Bec6 Qd7 Rde2 d2 Bd3 Qe6 Rb2 Qc8 Re6 Qa8 Nf2 d1R Red6 Rd2 Nd1 Qc8 Ra2 Rb2 Rd2 Ba6 Ba8 Bb7 Bc3+ Kc5 Ke4 Qd7 Rg2 Qe8+ Kf5 Qc6 Bcb4+ Kd4 Be1 Kc5 Rd2 Kd4 Bf3+ Kc5 Bb6+ Kb4 Rg2+ Kb3 Bb4 Rf2 Rd2 Re2 Bc2+ Ka2 B6a5 Rf2 R2d5 Re2 Bce4 Rc2 Rdd2 Rb2 Bd3
nq3B1r/RbR1b3/2b1KR1p/2rN2Nk/nR1P2B1/1n1N3P/pB3R2/r5N1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 f4 g5 Qg4 Kd7 exf5 Bg7 f6+ Ke8 f5 Bf8 Qf4 gxf4 Kf2 Kf7 Kf3 a5 Ke4 e5 d4 c5 b4 h6 g4 a4 b6 a3 b7 c4 h3 f3 b5 f2 g5 c3 b6 c2 g6+ Ke8 g7 Kf7 d6 Rh7 Kd5 e4 d7 e3 Bb2 c1N Bd3 f1B Nc3 e2 Rh2 e1R Rf2 Nc6 b8R Re2 b7 Qc7 d8R Rc2 Ne4 Na7 Rd7+ Be7 Ng5+ Ke8 Be4 Nb3 Ke6 Nb5 Rc1 Rc5 Rc4 a2 Rb4 Ra7 Ra8 Nc3 b8N Rb7 Nc6 Qb8 Ne5 Bg2 Nd3 Rh8 Ra7 Rbb5 Rc7 Na4 Ra7 Bb7 Rc7 Kd8 f7 Nf6 f8B Ke8 g8N Nd7 f6 Ndb6 Bh7 Bgc6 Bf5 Na8 f7+ Kd8 Rd2 Rc1 Nf6 Rbc5 Nd5 Rf1 Bg7 Ra1 f8R+ Be8 Rf7 Bec6 Rf2 Ke8 Be5 Rb5 Bd6 Rc5 Rg7 Kf8 Rf7+ Kg8 Rf8+ Kg7 Rf6 Bb5 Bh7 B5c6 Nf7 Bd8 Bf5 N4b6 Bg4 Na4 Bf8+ Kh7 R6f4 Kg6 Ng5 Be7 Rf7 Bb5 Bf5+ Kh5 Rf6 B5c6 Bg4+
2B3q1/r2R1N2/1BRbKNRP/1N1np3/rn2k1B1/1Nb3p1/3R1qP1/1r1b1R2 b - - 0 1 illegal: No proof kernel
bq3BbB/R3r1r1/6R1/2Qp1p1k/BN1R4/1K1PbBrP/1BR2n2/3n2qB b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 a4 Ba6 axb5 Bc8 gxh5 c6 b4 Qc7 b6 Qd8 Nc3 c5 b5 Nc6 Na2 Nb8 Nb4 cxb4 c4 d5 e4 f5 d3 Kf7 Kd2 a5 Kc2 g5 b7 g4 b6 g3 e6+ Kf6 e7 a4 e8B g2 c5 a3 e5+ Kg7 e6 a2 h6+ Kh7 h3 Ra7 c6 Qc7 e7 Nf6 Bb2 Na6 b8R Be6 b7 Ng4 Ne2 g1Q Bg2 Nf2 Nc1 Bg8 Bh5 Nc5 e8B Na4 Kb3 Bc5 Bhf3 Nc3 Qc2 Ncd1 Rc8 Qb8 c7 Be3 Ba4 Kg6 h7 Kh6 Qc5 Kg5 Re8 Kh6 c8R Kg5 Rb1 a1R Re4 Kg6 Rg4+ Kh5 Rh2 Ra2 Bh1 Ra1 Rhg2 Ra2 Bc3 Re2 Ra1 Re1 Bb2 Re2 Ka2 b3+ Ka3 Re1 Na2 Re2 Nb4 Re1 Bc3 b2 Kb3 b1B Bb2 Re2 Rc6 Re1 Rcg6 Bc2+ Ka3 Bb3 Rh2 Bc4 Rhg2 Ba6 Kb3 Bb5 Ra3 Bc6 Rd4+ Ng4 Rc2 Re2 Bc3 Rg2 Bb2 Rg3 Be4 Ngf2 Ra1 Qf8 b8B Ba8 Bd6 Qb8 Bf8 Re7 Beg2 Be6 Ra3 Rg8 h8B Rgg7 Bf3+ Rg4 Bd7 Bf7 Ra7 Bg8 Bfg2 Rg5 Ba4 Rg3 Bf3+
1r2B3/1p3b2/n4QNK/1N3N2/PPk2rB1/2prnq1b/BBqB2B1/R1b2N2 b - - 0 1 legal: proof: b4 d5 f4 e5 fxe5 a5 c4 g5 cxd5 a4 h4 Bd7 hxg5 Bf5 a3 Qd6 Ra2 Bd7 Rb2 Bc8 Rb3 axb3 a4 Qd8 Kf2 Ke7 Kg3 f5 Kf4 c5 e4 h5 d4 c4 g4 c3 d6+ Ke6 g6 b2 g7 h4 d7 h3 d5+ Ke7 Kg5 f4 e6 Kd6+ e7 h2 e5+ Kc7 e6 Kb6 d6 f3 Bg2 f2 Qf1 Rh6 Ne2 Ra7 Na3 b1R Nb5 Ra5 Ng3 Rh4 Bb2 Qe8 d8N Nc6 d7 Ka6 Nf7 Nb8 d8B Nh6 g8B Rd1 Bh7 Rd3 Ne5 Nf5 Ng6 Ne3 Rg1 Qf7 e8B h1Q e7 Qb3 Bd7 Qc2 e8B Bd6 Bf6 Kb6 Bg7 Na6 Bh6 Qh3 Bg8 Nf5 Ne7 Nc7 Ba2 Ra8 Kg6 Na6 g5 Bc5 Kh7 Rb8 g6 Be3 g7 Re4 g8N Bf4 Ng6 Qg4 Bc6 Be6 N8e7 Bf7 Bh3 Rc4 Bcg2 Qge2 Bg4 Qe4 Qe2 Qc6 Ra1 Bc1 Qe5 Qf3 Bd2 Rf4 Bb1 Ne3 Kh6 f1B Bh1 Bh3 Bg2 Rd7 Nef5 Kc6 Qf6+ Kd5 Nf1 Kc4 Kg7 Rdd8 Kh6 Rd3 Ba2+
N4nqB/1pr1NP1R/1b1Kp3/n7/1npN4/1kPB2RB/2bR3N/1br3BN b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 h4 e6 h3 gxh3 Ke7 h4 Qe8 h5 Qd8 Bd2 Kd6 e7 Kd5 Bc1+ Kc6 e8B Ba3 e4 Qh4 e5 Bf8 e6 Qd8 e7 Kc5 Qg4 d6 Qe6 fxe6 Ke2 Kb4 Kf3 g5 Ke4 c5 f4 g4 a4 d5+ Ke5 d4 h4 d3 a6 g3 f5 d2 a5 d1B h6 c4 h5 g2 c3+ Kb3 f6 Rh7 a7 Be2 a6 Rg7 h7 Nh6 h8N Qd2 Nf3 g1N Nh2 Nf5 h6 Qg5 h7 Kc2 Nd2 Nh4+ Kd6 Nc6 Nb3 Rf7 Be3 Qf5 Nd4+ Kb2 Bh3 Ng6 Rd1 Nf3 Bg1 Nb4 Rd2+ Ka3 Bc6 Bd7 Be4 Qg5 Bd3 Bh6 e8N Nf8 Ng6 Ne5 h8B Nec6 Ng7 Na5 Ne7 Ba4 Nh5 Qg8 Ng3 Be3 Rb2 Rc8 a8R Rc7 Rd2 Bc2 a7 Bg4 Rb8 Bf5 a8N Rg7 f7 Be4 Ndf3 Bb6 Nd4 Rg5 Rd8 Rf5 Re8 Rf1 Bg4 Qg5 Bde2 Bd1 Nhf3 Nd7 Rg8 Bb1 Rh7 Bdc2 Bh3 Rc1 Nh1 Nf8 Bd3 Qg6 Nh2 Ka4 Rh6 Qh7 Rg4 Qg8 Rg3 Ka3 Rh7 Ka2 Ndf3 Kb3 Nd4+
Rb5q/1rbkP2B/2b3N1/4N2B/pp1B1r2/BP3rN1/2p1KB2/1nNnQ2B b - - 0 1 illegal: No proof kernel
R2B4/R1N2K2/rp2rpR1/1n5B/1N1BB2n/1pb2P2/nqNrP1BN/1b1k4 b - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 e5 dxe5 h5 g4 Qg5 gxh5 Qh4 Qd2 Qd8 Qb4 cxb4 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 Kg4 c4 g5 h4 d6 a4 b3 a6 b6 h6 Qc7 h7 Qd7 a7 Qe7 a5 Bf5 e6 Qd7 h5 Nh6 e7 Qc8 e8B Na6 c5 Bd3 c6 Be7 c7 Bf6 Na3 Bc3 Bg2 Bb1 Nc2 Nf5 h6 Nd4 Nf3 Nb5 Rg1 Qd8 c8R Qf6 Nh2+ Kh4 Be3 g4 Bd4 g3 Be4 Rf8 h8N g2 h7 Kg5 Ng6 Nb4+ Kc4 Qh8 a6 Na2 Ne5 Kf4 Kd5 Rg8 Rb8 Rg6 Nc6 Re6 N6b4 Qf6 h8B Qe5+ Kc6 d5+ Kd7 Qg7 Bf6 d4 Bd8 d3 Rb7 d2 Rb8 Qg3 Bd4 f6 Bh5 d1R Rb7 Rd2 Rb8 Rc6 Ke8 Re6+ Kf8 Qg5 Kf7 Qe5 Rc8 Rb8 a8B Rb7+ Rc7 Ra7 Rd1 g1N Rd7 Rb7 a7 Nf3 Rg1 Nh4 Rg6 Rb8 Bac6 Rb7 a8N Ra7 Nc7 Ra6 Bc5 Qd4 Bg2 Qe5 f3 Qd4 Be4 Qe5 Nd4 Ke3 Re7 Kf2 Re8 Ke1 Ndc2+ Kd1 Bd4 Qd6 Nbd5 Qa3 Ndb4 Qb2 Reg8 Nc1 Rf8 Ra8 Ra7 Na2 Rb7 Ra6 Ra7 Qa1 Be7 Qb2 Rfa8 Ra4 Bd8 Ra3 Bc5 Ra6 Bd4
1R3n2/pbprB1N1/2Pn1RRq/N4B2/5B1q/1NK1bBp1/P1N1B3/3kr2b b - - 0 2 illegal: No possible last move, all moves rejected
1rnBk2q/3R4/1pK2N1R/N1bR1b1q/PrN5/1pQ5/1P2Np2/RN1Nn2n b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 fxe5 a6 c4 Bf5 cxd5 Nd7 Bh3 Nb8 Bg4 Bc8 Bd7+ Ke7 Bb5 axb5 Nc3 Kd7 Nb1 Ke8 Kf2 c5 Ke3 f5 h4 g5 d4 f4+ Ke4 b6 a4 c4 d6 b4 Kd5 g4 e4 g3 h6 g2 d7+ Kf7 e6+ Ke7 h5 c3 e5 f3 h7 c2 h6 b3 Qd3 f2 Rh5 Bg7 Bg5+ Kf8 e7+ Kf7 e8N c1N e6+ Kf8 e7+ Kf7 Nf6 Na2 e8N Ke7 Ne2 g1Q Nc7 Bf8 Qc3 Qd1 Nb5 Qe8 d8N Nd7 Nb7 Kf7 Na5 Bc5 Kc6 Rb8 d5 Nc1 d6 Nd3 Bh4 Qh1+ Rd5 Ne1 Bg5 Qh5 Bh4 Nf8+ d7 Ng6 Bg5 Qe5 d8R Nh4 R8d7+ Kf8 Qf3 Qee8 N5c3 Nf5 Nd1 Ng3 Qc3 Qe5 Ng4 Nh1 Bd8 Qeh2 Nf6 Ne7+ Kb5 Rg8 h8N Rg7 h7 Rg4 Ng6+ Kf7 h8R Rf4 Ng8 Ke8 Ne5 Q2h3 Nec4 Q3h4 Rc7 Bf5 Rcd7 Nc8 Rh6 Rd4 Kc6 Qh2 Ncd2 Rb4 Ndc4 Q2h4 Rc7 Qd4 Rcd7 Qh8 Nf6+
1n5K/qpBq1p2/P4R1Q/2bR2r1/B1Bp3R/1b3rRn/1Pk3RN/1R2Bb2 b - - 0 1 illegal: No proof kernel
nB1BB2b/nn6/8/3BBkRp/1r1pp1nK/1NqP3b/rN1NN1P1/1R4R1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c5 b4 Qb6 Qg4 Qb7 b6 Qc7 b5 Qd8 Qb4 cxb4 c4 Kf7 f4 a5 Kf2 d5 Kg3 h5 c5 e5 b7 d4 g6+ Kf6 c6 b3 b6 a4 c7 a3 g7 e4 Kh4 b2 Ne2 a2 Rg1 Nd7 b8B Ba3 b7 Nh6 g8B Ng4 Bd5 Kg7+ f6+ Kh6 f5 Qe8 f7 Qd8+ f6 Kg6 f8N+ Kf5 Ne6 Bf8 Nc5 Bg7 Nb3 Qe8 f7 Nb6 f8B Qc6 Be7 Qc3 Bd8 Be6 c8R Ra3 Rc4 Na8 Rc5 Rh6 Be5 Bh8 b8N Bd7 Na6 Rb6 Ra5 Rb4 Nac5 Raa4 Nd3 Bc8 Na3 b1N Nc4 Na3 Rb1 Nb5 Ba3 a1N Ndb2 Na7 Bb8 Rb6 Bad6 Ra2 Be5 Rb4 Bg8 Rb5 Bg7 Nh2 Nc5 Rb4 Nc1 Nb3 Rb5 Na5 N5b3+ Kg6 Rf5 Ra3 Bd5 Raa4 Bge5 Nb7 Rg5+ Kh7 Be2 Bh3 Bg4 Ra5 d3 Ra2 Bd7 Ng4 Ncd2 Kh6 Ne2 Kh7 Rf5 Kg6 Be8+ Kh6 Rf7 Kg6 Rg7+ Kf5 Rg5#
n4q2/p1rR1p2/B1r2P2/2k1nKB1/1Rp1Bb2/3N2R1/2P1r1N1/2nBRRNn b - - 0 1 legal: proof: h4 e5 f4 b5 g4 g5 hxg5 b4 f5 b3 axb3 Nf6 b4 Bd6 b5 Ng8 d3 Bb4+ Qd2 Bf8 Qe3 Bb7 Qf4 Be4 dxe4 exf4 e5 Bc5 Kd1 Ba3 Ke1 Bf8 Kf2 Ke7 Kf3 h5 Ke4 c5 b4 d6 b6 h4 b5 f3 b7 h3 b6 c4 e6 h2 g6 f2 g7 Qe8 g5 Rh7 f6+ Kd8 e7+ Kd7 g6 Kc6 Nd2 d5+ Kf5 d4 e4 d3 e5 Rh8 e6 Rh7 Ndf3 d2 Be2 f1R Bd1 Qd8 e8B+ Kc5 e7 Nc6 b8N Na5 b7 Re1 Bb5 Re6 e8B Nc6 Nh4 Ne5 Ba6 Rc6 Ng2 Bd6 Bd7 Rc7 Bc6 Qf8 Be4 Rh3 Nc6 Re3 b8R Re2 Rb6 Rac8 Nb4 Rc6 Rb7 Bb8 Rd7 Ne7+ Kf4 R6c7 g8R Nd5+ Kf5 Nb6 g7 Na8 Rh8 Rc6 g8R R8c7 Rg3 Rb7 Nf3 Rbc7 Rf1 h1N Ng1 Re1 Be2 d1N Bg5 Ndf2 Bd1 Nfd3 Ra4 Nc1 Nd3+ Kb6 Rh4 Re2 Rhf4 Rd6 Re1 Rdc6 Nb2 Kc5 Rb4 Qe8 Rf2 Qf8 Rff1 Rc8 Nf4 Ned3 Nd5 Bf4 Ne3 R8c7 Ng2 Ne5 Nd3+
R1B1nNN1/n4Q1p/2Rp4/KR1nnPR1/1R1P2n1/3q2Rk/7b/Rr1n2R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 b5 a4 Ba6 axb5 Ra7 b6 a4 c4 Bb7 c5 Qc8 c6 Qd8 b5 Bc8 Qf3 Kf7 Qd1 Rb7 cxb7 Ke8 g4 d6 f4 Be6 Bb2 Bf7 f6 g5 f5 Bh6 Be5 Nd7 Bf4 gxf4 h3 Bh5 g5 Bg4 hxg4 Nb8 Ra3 Bg7 Ra1 Bf8 d4 Kf7 Kd2 c5 Kc3 e5 Ra2 c4 Kb4 f3 Nc3 e4 Rb2 f2 Nd5 a3 Ne2 c3 Ne7 a2 Ka5 a1N Nf4 e3 Nfg6 Bh6 Nf8 Qc7 Qb3+ Qc4 Ra2 c2 Rg1 c1N g6+ Ke8 g7 Kf7 g5 e2 Ra4 Nc2 Ra1 e1N Bd3 f1N g6+ Ke8 Rg2 Nh2 f7+ Kd8 Bf1 Nf6 g8R Nef3 g7 Nb4 Rg5 Qc3 Bc4 Qd2 Be6 Ne2 Bc8 Nc3 Rgg1 Nhg4 Qa2 Nbd7 b8R Nbd5 b7 Nfe5 b6 Qd3 Ra8 Bf4 b8R Nd1 b7 Bh2 Ra6 Ne8 Rc6 N7b6 Ra8 Ndc7 b8R Nbd5 Rb4 Nb5 Rb8 Na7 R8b5 Nf4 Nd7 Nd5 f8R Qd2 Rf6 Qe2 Rg6 Qd3 Rf8 Rg8 Rg5 Rh8 Rf6 Rf8 Ng8 Rf7 Nf8 Rb7 Rfg6 Rb8 Nh6 Ke7 g8R Rb6 R6g7+ Kf6 Rh8 Ngf2 R5g2 Rb7 R7g3 Nfg4 Ng8+ Kg5 Qc4 Kh4 Qb3 Nge3 Rg5 N3g4 Qa2 Kh3 Qc4 N5c3 Qf7 Nd5 Nd7 Rc7 Rcc4 N1e3 Ba6 Rc6 Nh6 Nef6 Ra8 Nd1 Ng8 Ne8 Bc8 Rc5 Nf8 Rc7 Rcc1 Rc3 Rcc2 Rb3 Rc6 Rb1 Rg3+
R1rrrQ2/1B6/2bR1P1b/2pn1rq1/1RRR1NpR/4k3/n1P2B1K/4qR1R b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f6 g4 Ne7 Nc3 Ng8 Ne4 f5 gxf5 Kf7 Nf6 Ke7 Ng4 hxg4 Nf3 Kf7 Ng1 Ke8 h4 Kf7 e4 g5 b4 d5 f4 a5 Kf2 c5 Kg2 a4 h5 g3 h6 d4 e6+ Kf6 h7 a3 e7 d3 e8R g4 e5+ Kg7 b6 d2 e6 Kf6 b5 a2 e7 Bb7+ Qf3 d1Q Ne2 Q8d5 Rd8 Ba6 e8R Nd7 b7 Rc8 b8R Q1d3 b6 Rc7 b7 Ne5 Ra8 Rc8 b8R Q3e4 Rb4 Nc6 Rd6+ Qee6 Kg1 g2 Red8 Nge7 Kh2 g1R Bg2 Re1 Rf1 Rg8 h8R Bb5 Rh4 Bh6 Be3 Rd1 Bf2 Re8 Bg3 Rd3 Rad1 a1R Rh1 Qe5 Rdf1 Nd5 Rc4 Rd2 Rb1 Qe3 Rbb4 Rf1 Qf2 Nc3 Bf3 Ne7 Bb7 Na2 Rdd4 Nd5 Rd6 Bc6 Qf3 Kf7 f6 Kg6 f5+ Kg5 f7 Rdd1 f8R Qg6 Nf4 Qe1 Rh8 Qg7 f6 Kf5 Qe2 Qg5 Qe7 Rf3 Qf8 Ke5 Rd3 Rf1 Rf3 Rd4 Rd3 Ke4 Rd2 Rf3 Rf1 Ke3 Rd1 Rde4 Rdd4 Red8 Kg1 Re7 Rh1 Ree8 Kh2 Bg7 Rh4 Bh6 Ne2 Rf5 Nf4 Ba4 Ra5 Bb5 Ra8 Bc6 Bf2+
1R3r2/pBn1KQqk/pB2Rp1R/1R1r3q/Pn2PRp1/2N5/6Rb/R4R1b b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 d5 gxh5 d4 Nc3 d3 Nd5 Kd7 Nb4 Ke7 Na6 bxa6 cxd3 Bb7 d4 Bc8 d5 Ke8 Kf2 c5 Ke3 g5 Ke4 c4 a4 f6 d4 Kf7 h4 Kg7 b4 c3 h6+ Kg6 h7 c2 h5+ Kh6 e6 Bd7 Kf5 Qe7 d6 Nc6 b5 Qd8 d5 Nb8 b6 Qc8 b7 Be7 Be3 c1Q Bg2 Q1c3 Qb3 Bf8 Bb6 Nc6 b8R Be8 d7 g4 d8R Qh3 d6 Bg7 d7 Qc3 e7 Qa5+ Ke6 Nb4 Bb7 Bg6 e8R Kg5 h6 Nc2 e4 Bf8 Ne2 Ne7 Nc3 Nd5 Rhf1 Bd6 Rf4 Rf8 h8R Ncb4 h7 Kh6 Rg8 Qc7 h8R+ Bh7 Rdc8 Qac5 d8R Qg7 Re7 Nc7+ Kd7 Qcg5 Qf7 Qh5 Re6 Be5 Rf2 Bf4 Ke7 Bh2 Rd5 Rd8 Rb5 Rd4 Rgd8 Rd5 Rhg8 Bf5 Rf4 Kh7 Rc6 Bd7 Re6 Ne8 Rc4 Nc7 Rd4 Bc6 Rdd1 Be8 Rdf1 Bc6 Ra5 Bb5 Rd7 Be2 Rb5 Bf3 Rdd6 Rc5 Rd2 Bh1 Rg2 Rd5 Rgd8 Rd3 Rdd5 Rd1 Rg5 Rd4 Rg6 Rd5 Rg8 Rad8 Re8 R8d6 Ra8 Rd8 Rb8 Rf8 Rh6+
BNkB1R2/RN4r1/2R2R2/R4PRP/1nbb4/3nn1K1/1NrN4/qnr4r b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 g5 g4 h5 fxg5 Bg7 g6 Bh6 g5 Bf8 Qg4 hxg4 Kf2 Kd7 d4 c5 b4 a5 h4 e5 d6 e4 h5 e3+ Kg3 a4 g7 c4 b6 a3 d5 e2 b7 e1N g6 a2 b5 c3 b6 c2 Na3 Nh6 g8R Nf7 g7 Qg5 Nf3 Ne5 Bg2 Nc4 Nd2 Na6 b8R Rh7 b7 Ne3 Nac4 Nd3 Nb2 Qf6 Re1 Be7 Rf8 Nab4 g8R Rg7 Bh1 Ra6 Ra8 Rc6 Ra7 Bd8 Re2 Bb6 Ra5 Qc3 Rf6 Bd4 Rg2 Rc7 Re8 Qa3 Ree6 Kd8 b8N Ba6 d7 Bc4 Rc6 Qc3 Rb1 a1N Rg1 Nb3 Rba1 Rc8 Ra7 Rc7 R1a5 Rc8 Na4 Qa1 Nb2 Nbc5 Bf3 Na4 Rg2 Nc3 Be4 Ke7 d8N+ Rc7 Bf3 Nb1 d6+ Ke8 d7+ Ke7 Kh4 g3 Nb7 Rc8 Rg1 g2 d8R Rc7 Rdf8 Rc8 Rh1 g1R Kh3 Rd1 Rg1 Rf1 Rg5 Rh1+ Kg3 Rc7 Nd1 Rc8 Ba3 c1R Nb2 Rc2 Na6 Kd7 Bd5 Na2 Be7 Nab4 Bd8 Rc7 Nb8+ Kc8 Be4 Qa4 Rcc5 Rcc1 Bf3 Bd5 Rc3 Rc6 Nc5 Qa1 Be4 Bg8 Bd5 Rcc7 Ba8 Be6 Nb7 Rc6 Rca3 R6c2 R5a6 Bf7 R3a5 Bc4 Rac6+
1rR2r2/2q3N1/b1bPqN1K/1Rr2R2/4kn1p/B3Bn2/R1RP1BB1/3R1b2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bc8 h4 Ne7 g4 Rg8 Qa4 Nd7 Qf4 gxf4 g5 Nb8 g6 Rh8 Bh3 Bh6 Bf1 Bg5 hxg5 Ng8 Kf2 Ke7 Kf3 c5 b4 h5 e4 f5 d6+ Ke6 b6 a5 g7 a4 b7 h4 b5 a3 g6 c4 b6 c3 Nh3 c2 Bg2 a2 Rd1 Qf8 Nc3 Ra6 Ba3 c1R Nd5 Rh6 Nf6 Ne7 g8R Rh8 g7 Qe8 Rf8 Rc7 g8R Qd8 Rg5 Nd7 b8B Bb7 Ba7 Bd5 b7 Ng6 b8B Bc6 Bf2 Rb6 Ba7 Rb8 Bae3 Qe7 Rac1 a1Q Rc2 Qa2 Rc8 Rf8 Rh5 Kf7 e6+ Kg7 Ng5 Nde5+ Ke2 Qd8 e7 Qe6 e8R Nf3 e5 Qde7 Rcd8 Q7f7 Rd7 Rcc8 Rb7 Qc7 Rb6 Ne1 Rb5 f3+ Kf1 f4 Kg1 Nh8 Kh2 Kg6 Rd8 Kf5 Kh3 Ng6 Ra2 Qc4 e6+ Qd5 e7 Qe5 Bg3 f2 e8R f1B Bgf2 f3 Rc2 Qd5 Re4 Be2 Ra4 Ke5 Kg4 Nf4 Rh8 Bf1 Ne6 Bc4 Kg5 Be2 Rba5 Ba6 Kh6 Kf5 Rb5 Ke5 Bg1 f2 Ng7 f1B Bgf2 Nf3 Rd7 Nd3 Rf7 Nf4 Rbb2 Qb3 Ra2 Qe6 Ra5+ Rb5 Rg8 Rc5 Rb5 Rb8 Re7 Rf7 Rc8 Rf8 Rf7 Qb3 Nh7 Ke4 Rf5 Qe6+ Nf6+
2nnnR2/1q2R1N1/4B1Nr/PR2N1B1/4RKP1/pRb4q/Rq5k/n1N2b2 b - - 0 1 illegal: No proof kernel
4BB2/qBK4p/P2R2p1/RNb2Rk1/N1rR1nP1/1b4qB/4B2q/q2bB3 b - - 0 1 legal: proof: c4 b5 h4 a5 b4 f5 bxa5 d5 cxd5 g6 h5 Ra6 h6 Rf6 Rh5 Rf7 Rh4 Rg7 Rh1 Rf7 e4 e5 f4 Kd7 d4 Ke8 d6 Nf6 d5 Nfd7 Qd4 exd4 e5 Rg7 hxg7 Nc6 e6 Nce5 fxe5 Nf6 Be2 Ng8 Bd3 Be7 Bf1 Bf8 Kd2 c5 Kd3 f4 Ke4 c4 a4 d3 g4 d2 a6 d1B e7 Kf7 e8R b4 e6+ Kf6 a7 f3 a8B f2 e7 c3 a5 b3 a6 c2 d7 b2 d6 Qc7 Kd5 Qc3 d8B Qe5+ Kc6 Bb7+ Kc7 Qh5 d7 Bbf3 Na3 b1Q Nb5 Qd5 Bd2 Qg5 Bb7 Bd5 Rh5 Qb2 Bh3 f1Q Be1 Qf2 Ra5 Bb3 Ne2 c1Q+ Nec3 Qca1 Na4 Qgh4 Rd5 Qg1 Rd4 Kg5 Rd6 Nf6 g8B Qhg3 Bc4 Nh5 Be2 Nf4 Rd4 Bg7 Rf8 Q1e3 Rd6 Qa7 e8B+ Bf6 Rd4 Be7 Rf6 Bb4 Be7 Bc5 d8R Rg8 R8d6 Rg7 Bef1 Qbh2 Be2 Rg8 Bf8 Rg7+ Rd7 Re7 Rdd6 Re4 Rd8 Rb4 Rd4 Rc4 R8d6 Bdc2 Rf7 Bd1 Rf5+
N6r/3kb3/R2nqB2/pnR3R1/bpRP1bP1/p3B2B/1B6/R2NKRn1 b - - 0 1 illegal: Other
7K/RRqk1q2/1pn4p/Bb1N3P/1n1RBR1R/2bP2RB/rq2N1r1/2B3r1 b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 g4 b6 g3 fxg3 Bh6 g4 Bg7 g5 Bf8 b4 Bb7 b5 Ba6 b7 Nc6 b8B Bb7 b6 Bc8 b7 Nb4 Qf3 Na6 Qf6 Bg7 Qh6 Bf8 Qb6 cxb6 Ke2 e5 Ke3 f5 c4 e4 Kd4 f4 Ke5 e3 h4 e2 g4 e1Q+ Ne2 f3 g6 f2 g5 h6 g7 Ba3 d3 Bf8 c5 Kd7 d6 Be7 h5 Nb4 g6 a5 c6+ Ke8 c7 a4 Bh3 f1R Nc3 a3 Nd5 Bd7 c8B Nf6 g8R+ Bf8 g7 Bg4 Bf5 a2 Be4 Qf2 Bc7 Qc8 b8R Rg1 Rb7 Bd7 Bd2 Bb5 d7+ Kf7 Bd6 Qc7 d8R Ra7 Rd7+ Ke8 Bc1 Nc6+ Ke6 Ra8 Bb4 Qf3 Ba5 Rh7 Rb1 a1Q Rb4 Qb2 Rd4 Ra6 Rh8 Qf2 g8R Rhg7 Rh2 R7g2 Rg3 Qff4 Rhh7 Bb4 Rdf7 Bc3 Rhg7 Qf2 R7g4 Kd8 Rf4 Kc8 Rd7 Qf1 Kf7 Ra7 Bb4 Ra2 Kg7 Qf2 Kh8 Qf3 Ne3 Nd5 Ba5 Ndb4 Nd5 Qf2 Rfg4 Qf5 Rf4 Qf7 Ra7 Qb8 Rdc7+ Kd8 Rcb7 Qbc7 Bc8 Ke8 Rhh4 Kd8 Bh3 Ke8 Rhg4 Kd7 Rh4+
Bq6/2nNK1pP/pN1r1RP1/2nBb3/np2B1B1/4k3/bBr1N3/1R1NqB2 b - - 0 1 illegal: No proof kernel
Rrb1nB2/NPRN3K/3k1qB1/1ppp4/1r4Nn/nB6/R1PbBb2/1R3N2 b - - 0 1 illegal: No proof kernel
1K1nq2k/2PRQq2/QN4n1/b3r2P/2P4B/N1RR2Nn/b1q4q/1B3Q2 b - - 0 1 legal: proof: b4 a5 bxa5 f5 e4 h5 exf5 c5 g4 b5 gxh5 c4 a6 c3 dxc3 b4 c4 Ra7 a4 Rb7 c5 Rb5 axb5 Bb7 b6 Bc8 b7 Nc6 b8Q Nxb8 Kd2 Kf7 Kd3 d5 Kd4 g5 Ke5 Kg7 c4 g4 h4 d4 f4 d3 c6 e6 a7 g3 a8N d2 h6+ Kh7 h5 b3 f6 b2 f5 g2 f7 Bd7 f6 Qe7 Na3 b1Q Ne2 g1N Qa4 d1Q Ng3 Nh3 Qa6 Qbc2 Nb6 Qh2 Bg5 Qdc2 Rc1 Qe8 c7 Bb4 f8Q Qf7 Qe7 Ba5 Kd6 e5 Bh4 e4 Bd3 Bf5 Rhd1 e3 Be4 e2 Rd3 Bg6 Bf5 Nc6 Kd7 e1Q Kc8 Nd8 Kb8 Qe6 Rd7 Qc6 Rd3 Qe8 Be4 Qg7 f7 Qf6 f8Q+ Qff7 Rb1 Bf5 Rbb3 Bg6 Rbc3 Bf5 Qf6 Ne7 Qd6 Ng6 Qde7 Rg8 Rd7 Kh8 h7 Qa2 Bb1 Bc2 Qe2 Bb3 Qf1 Qac2 Qe7 Ba2 Rdd3 Nf8 Rd7 Rg5 Rdd3 Ng6 Rd7 Kg7 h8R Re5 Rg8+ Kh7 Rg7+ Kh8 Rdd3 Qf4 Qd6 Qff8 Rd7 Qff7 Qe7
b1nb4/q1B2R1r/1p4RQ/1k3b2/3bPB2/R1B2KQ1/rP1P2N1/3NQ2r b - - 0 1 illegal: Other
rRK4B/2Q2b1b/1N1p1kN1/1PR3N1/r1RP4/bbB1n3/3Q1P2/n2bQ3 b - - 0 1 legal: proof: b4 a5 h4 b5 a4 f5 e4 g5 hxg5 c5 exf5 c4 c3 Qb6 Bd3 Qa6 Bc2 Qb7 bxa5 b4 Bb3 Qb5 axb5 cxb3 Ke2 Kf7 Ke3 e5 Ke4 h5 Kd5 d6 d4 h4 g4 b2 c4 b3 g6+ Ke7 g5 h3 g7 e4 f6+ Kf7 g6+ Ke8 f7+ Ke7 a6 h2 c5 e3 a7 e2 c6 e1Q c7 Nc6 Ra4 Kf6 Nh3 Nh6 g8Q Bg4 c8Q Na5 Ng5 Qe8 Qc7 Nf5 Qd2 Bh6 f8N Bd1 Na3 b1B g7 b2 Ng6 Ba2+ Rc4 b1B Bb2 Nb3 Bc3 Na1 Re1 Bd3 Re5 Bab3 Qe1 Qf8 Kc6 h1B+ Kd7 Ne3 Rec5 Bd5 Qd2 Qb8 Qe8 Bf7 Qe4 Qf8 Qh1 Bd3c2 Qhe1 Be4 Rb4 Qg8 Nc4 Qb8 Nb6 Rf8 Ne7 Bh7 Rbc4 Rh8 Ng6 Rc8 Qb7 Rc6 Qc7 Qh8 Na4 Ra6 Nb6 Rf8 a8R Ra4 Rb8 Re8 Rb7 Rea8 Rb8 Nec2 Nf3 Bf4 Ng5 Be3 Qde2 Bc1 Q1d2 Ne3 Qee1 Bfg8 Kd8 Ba3 Kc8 Bf7+ gxh8B+
N2r2R1/1k5R/qqNB4/r4bBp/2Pq1b2/1RNrP3/b2QQP2/5Q1K b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 e6 g4 Nc6 gxf5 Nb8 Bg2 Qc7 Bf3 Qd8 Bd5 exd5 b4 a5 h3 g5 Qd4 a4 Qd3 Nc6 Qd1 Na5 bxa5 Nh6 h4 g4 Nd2 Nf7 Nb1 Ng5 hxg5 Bg7 Be3 Bh6 Bc1 Bf8 Kf1 d6 Kg2 Kd7 c4 Kc7 g6 d4 g7 h6 g8R a3 f6 g3 b6+ Kb7 f7 d3 Qf1 a2 Nc3 d5 Rb1 a1Q Bg5 d2 e3 d1B Nge2 d4 Rb3 d3 Nd4 d2 Nc6 Bd6 f8B Bf4 Bd6 Bf5 Kg1 g2 a6+ Kc8 a7 Qa6 Qe2 Kb7 Rh5 Qc7 Rh4 Rd8 a8N Bdc2 Qf1 d1Q Rh3 Bb1 Rh5 Ba2 Rh1 Kc8 b7+ Kd7 b8Q Qcb6 Qa7+ Kc8 Qg7 Qg4 Qd4 Kb7 Qd2 Rh7 Nb8 Rhd7 c6+ Ka7 c7 Kb7 Nc6 Qh4 Rh8 h5 Rh7 Qg4 Rh4 Qd1 Rg4 Qa1 Rg3 Qb2 Kh2 g1R Qfe2 Rd1 Qf1 Re7 Kh1 Re5 Qe2 Rd3 Qd2 Ra5 Rg4 Qa7 Qfe2 Ka6 c8Q+ Qbb7 Ne4 Bg6 Bh4 Qbd4 Nc3 Qab6 Rg2 Be4 Qh3 Bf5 Rg8 Q7a7 Bhe7 Kb7 Qhf1 Qa6 Bg5+
Qr2nn1N/2B1pQ2/N4b1R/P7/3bP3/2rRQKPR/2np3B/1kn2N2 b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 g5 fxg5 a4 g4 a3 Kd2 Qb6 bxa3 Qb3 a4 Qf3 a5 Qg3 hxg3 b5 Ke1 Bb7 Bg2 Nc6 Bd5 Nb8 Bb3 Bd5 Ba4 Bb3 axb3 bxa4 b4 Bg7 Rh4 Bh6 Rh1 Bf8 Kf2 d5 c4 Kd7 e4 Ke6 b5 Ke5 g6 h5 c6 f5 c5 f4 g7 d4 g5 f3 b6 d3 g6 Kd4 b7 h4 c7 h3 c8N a3 c6 a2 c7 h2 Qb3 Rh4 Nb6 Ra7 c8R Nf6 g8Q Nd5 g7 Rh8 Na4 Nf6 Nd2 Ne8 Rc3 Nd7 b8B Rc7 Nf1 d2 Nh3 Rc8 Ba3 Rc5 Re3 Rc3 Qgf7 Rg8 Rc1 a1B Ng5 Rh8 g8Q Bg7 Bb2 Bf6 Nc5 Nf8 Ba3 Bb2 Na6 Ba1 Bc7 Bb2 Ree1 Kd3 Bc5 Ba1 Rcd1 Bb2 Qb6 Kc2 Re3 Ba1 Rd3 Bb2 Ke3 f2 Kf3 Ba1 Rg1 h1N Rg2 Bb2 Rh2 Bd4 Rh3 Ba1 Nh2 f1N Re1 Bf6 Bg1 Ne3 Nf1 Nf2 Bh2 Bb2 Re2 Kb1 Qc5 Nc2 Qe3 Nh1 Rg2 Nf2 Rg1 Bd4 Rh1 Ba1 Ne6 Bb2 Nf4 Ba1 Ng6 Bf6 Rd7 Nd3 Rd8 Nc1 Rd3 Rh5 Nh8 Rb5 Qgg5 Rb8 Qgd5 Rc4 Qa8 Bad4 Rh6 Rc5 Bg1 Rc4 R1h3 Rc3 Bh2
rq3B1R/pkq1R3/1P6/1N1nN1K1/NQ2qp2/8/B1P1r1PQ/1R1qB1b1 b - - 0 1 legal: proof: b4 c5 bxc5 b5 cxb6 e5 a4 g5 h4 Bb7 hxg5 Bd5 f4 Nc6 d3 Bc4 d4 Bb5 axb5 exd4 Rh5 Qc7 Rh1 Ne5 fxe5 Qd8 Kf2 h5 Kf3 d5 Kf4 Kd7 e4 Kc8 e6 f5 b7+ Kb8 e5 h4 g6 d3 e7 h3 e8R h2 g7 d2 e6 d4 e7 d3 Qg4 d1Q Kg5 d2 Ba3 Rh3 Nc3 Qc8 Qb4 Qb1 Bc4 d1Q Ba2 Qb3 Rb1 Qc4 Na4 Qdd3 Nf3 Qdb3 Ne5 Nf6 g8Q Qe4 Qh8 Nd5 Rhe1 Kc7 b8B+ Kb7 b6 h1Q Qh6 Re3 Qh2 Qc7 Rc8 Qb2 e8N Bc5 Rd8 Re2 Nd6+ Ka6 Rh8 Bg1 Nb5 Kb7 Bc4 Qc3 Ba2 Qc8 Bd6 f4 Bf8 Q3c7 Bc1 Q8b8 Bd2 Rf2 Re3 Re2 Bc3 Bf2 Bd2 Qd1 Be1 Bg1 Reh3 Bf2 R3h7 Bg1 Re7
B1Bn1KNQ/1N6/1b3RqP/2n4B/3P4/p1NQ1R1n/P2ppRn1/4k2r b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 b4 Na3 c4 Qe2 c3 bxc3 b3 c4 Nf6 c5 Rh7 Bf4 Qc7 Rd1 Rh8 Rd3 Qd8 Bc1 Ng8 c6 b2 Rc3 a5 Nb5 Ra7 Nh3 Rb7 Na3 Rb5 Ng1 Rc5 Rb3 bxc1N Rf3 Nb3 Rd3 Na1 dxc5 d5 Rd1 d4 Bh3 d3 Kf1 d2 Kg2 Qb6 Nb1 Ba6 Na3 Bd3 cxd3 Nb3 Kf3 Qc7 Bf1 Na1 Kg2 Qd8 Kf3 Kf7 Kg4 Kf6 h4 g5 f4 e5 h6 e4 Kh5 a4 d4 g4 c7 e3 c8B g3 h7 g2 c6 Bh6 c7 Na6 Nc4 a3 Rh2 Nb8 Bb7 Qc8 Qd3 Na6 Ba8 Nb8 Ne2 g1N Nd6 Nc6 Rf2 Na5 Nc3 Ne7 Be2 Nac6 Nb7 Bg5 Rdf1 Qd7 c8B Nh3 Bd1 Kf7 f6 Ke6 f7 Nb3 f8R Nd5 Kg6 Nc5 h5 Bd8 Rf3 Bb6 R1f2 Nd8 f5+ Ke7 Kg7 Qe6 Rf6 Ndf4 Be2 Ng2 Bd1 Re8 h8Q e2 h6 Rf8 Ba4 Qd6 Be8 Qe6 Na5 Kd6 Bh5 Rf7+ Kg8 Rg7+ Kf8 Rg4 Rg6 Rh4 f6 Qg4 f7+ Qe6 Rg4 Qg6 Nb7+ Kc6 Nb5 Kd5 Rgf4 Na6 Rf6 Nc5 Qc3 Ke4 Qb3 Ne3 Nc3+ Kd3 Qc4+ Kc2 Qd3+ Kc1 Ke7 Ng2 f8N Qg5 Nh7 Qg6 Nd5 Kd1 Nc3+ Ke1 Kf8 Ng1 Rc6 Rh3 Nf6 Rh1 Ng8 Nh3 Rcf6
6Q1/2pp1R2/2QP4/2Pq1R2/3k2Kp/P4N1R/B1pBBp1r/n2Nb1bN b - - 0 1 legal: proof: h4 b5 f4 g5 g4 a5 c4 e5 c5 f5 b3 Nc6 a3 Nce7 fxe5 f4 Qc2 Nf5 gxf5 g4 Qc4 a4 Qxa4 Ra6 Qe4 Rg6 Qd4 Rg5 hxg5 Ba6 Qc4 Bb7 Rh6 Bh1 Rxh1 bxc4 Kf2 Kf7 d4 h5 e4 g3+ Kf3 g2 g6+ Kg7 d5 c3 d6 c2 e6 Kf6 e7 Ke5 e8B h4 g7 Ne7 g8Q Rh7 b4 Bh6 b5 Kd4 b6 Bf8 e5 Nd5 b7 Rg7 b8Q Qg5 f6 Rg6 e6 Rg7 f7 Nb4 e7 Qf5 Qb6 Na2 Rh3 Rg5 Qc6 Bg7 f8R Nc3 Bd2 Nb5 Nc3 Rh5 Rf7 Rh7 Be2 Qd5+ Kg4 f3 Nd1 Rh5 Rb1 Re5 Rb3 f2 Rbf3 Re3 R7f5 Rd3 Bf7 Bh6 e8N Bg5 Bc1 Bd2 Nf6 Be1 Ne4 Re3 R3f4 Rb3 Bd2 Rd3 Rh1 Rh3 Rf3 Rh2 Ng3 Qe5 Ba2 Qd5 Nh3 g1B Ng5 Rg2 Rh3 Rh2 Re3 Nc3 Re7 Nb1 Bf4 Nd2 Ref7 Nb3 Nh1 Na1 Bc1 Qb3 Bd2 Qd5 Nf3+
2b1RnBQ/NPBNbK2/RRq5/2BQq1P1/1Qr1r1b1/6n1/1P1n2k1/2r5 b - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 b5 e4 f5 exf5 d5 a4 Nd7 axb5 Nb8 c4 cxd4 cxd5 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 h5 f4 a5 g4 e5 b6 a4 f6 a3 f5 d3 b7 a2 f7 h4 g6 d2 f6 h3 g5 h2 g7 Be7 f8B Kc5 d6 Qb6 f7 Ra4+ Bc4 Nd7 Kf5 Kd4 Ke6 Ke4 Nf3 Rh4 Na3 Qc6 Nb5 Ngf6 g8R Kf4 Bd5 Kg3 Na7 e4 Ne5 e3 Qb3 d1B Qb4 e2 Bf4+ Kh3 Rg6 Nh5 Re1 h1R Bh2 Rc4 Rh6 Nf6+ Nd7 Nh7 Rg6 Ng3 Rf6 Bd8 Be7 Rf1 f8Q Rg1 Qg7 Nf8+ Kf7 Re4 Qh8+ Kg2 Kg7 Rh1 Bg8 Rc4 Kf7 Rg1 Ref1 e1Q R1f3 Rh1 Re3 Bg4 Re5 Qee4 Rfe6 Rhc1 Rb5 Qe5 Rb6 Rh1 Re1 a1N Re3 Ra2 Ra3 Nb3 Raa6 Nh7 Bf8 Rhc1 Re8 Be7 Qe1 Ra3 Rb5 Ne4 Rb4 Qec5 Nf6 Bd8 d7 Q5d6 Be7 Nf8 Rbb6 Qdc7 Be5 Ng3 Qb4 Nd2 Bc5 Be7 d8Q Re3 Qd5+ Ree4 Nd7 Q7d6 Qd3 Qd4 Bc7 Qe5 Qd5
k4Qr1/1b6/Q1N1RN1b/b1Brn2q/bBR2RP1/nQ2n3/3b1P1P/N6K b - - 0 1 illegal: No possible last move
5qBB/1r2Pr2/P2R4/P1bRK3/1Rb2n2/n2B1bNQ/Q1q5/1rN1kr1Q b - - 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 bxa5 c5 g4 d5 cxd5 h5 gxh5 Ra6 d4 Ra7 dxc5 Ra8 Kf2 Kd7 Kf3 f5 e4 b5 a4 g5 h4 b4 h6 b3 a6 b2 h7 Bb7 e5 Nf6 a5 Ra7 h5 Nc6 d6 Ke6 d7 Nb4+ c6 Bc5 h6 Rf8 h8Q Nc2 h7 Nh5 Ra4 Rf7 Rb4 Na3 Qe2 Kd5 c7 Qf8 Nd2 b1Q c8B Qc2 e6 Ba8 e7 Rb7 Bb2 g4+ Kg2 g3 Kf3 g2 Nb3 Qd1 Nc1 Qc2 Nh3 g1R d8R+ Bd6 Bd7 Bc5 Rh2 Rh1 Ng5 Rg1 Ne4 Rh1 Kg2 f3+ Kh3 f4 Kg4 f2 Ng3 f3 Be6+ Kc6 Ba1 Nf4 Rd5 Rg1 Rh6 Rh1 Rc4 Kb5 Qd2 Rg1 Bd3 f1B Kg5 f2 Rb4+ Kc6 Bf6 Be2 Kf5 f1R Ke5 Bf3 Rc4 Kb5 Qg2 Rh1 Qg8 Rhg1 h8Q Be2 Qh1 Bf3 Rc3+ Kb4 Rg6 Be2 Q8h3 Bf3 Bh8 Be2 Nb3 Rb1 Nc1 Rf1 Bdf5 Bd3 Rb3+ Kc4 Rb2 Kc3 Rb4 Bc4 Bd3 Kd2 Rf6 Rg7 Bf7 Ke1 Rfd6 Rh7 Qgg4 Rg7 Bg8 Rf7 Qe6 Rb6 Rd4 Bf3 R4d5 Rb5 Q3h2 Rb7 Qeh3 Qd1 Qb2 Qc2 Qa2
N1kr2B1/2N3b1/2rB4/KQn1N2B/1P1Qqq2/3PRqRn/1P1R4/2nq1r2 b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 b5 cxd5 b4 a3 Kd7 axb4 Ke8 f4 g5 g4 gxf4 h3 Be6 g5 Bf7 Ra4 Bh5 Ra1 Bg4 hxg4 Qc8 Ra6 Qd7 Ra1 Qd8 d3 Kd7 Kd2 a5 Kc3 h5 d6 e5 f6 c5 f7 c4 g6 h4 g5 a4 g7 f3 g6 a3 Nh3 a2 Nf4 e4 Ne6 h3 Qa4+ Kc8 Qb5 h2 Nc7 f2 Bf4 e3 Nd2 e2 Nf3 Qf6+ Ne5 Ne7 g8B Na6 g7 Ng6 Rd1 e1Q+ Rd2 a1Q Be2 f1R Bh5 Qad1 Bg3 Rb8 Na8 Nc5 Bf4 Rb6 d7+ Kb8 d8N Kc8 Ne6 Qe4 Nec7 Rc6 Rg1 h1Q Rg3 Qg5 Re3 Qhf3 Bg3 Qgf4 Bh2 Be7 f8Q+ Bd8 Qd6 Bf6 Bf7 Rd8 g8R Bg7 Qd4 Qff5 Bg3 Nf4 Bd5 Nh3 Bf4 Bf8 Rg3 Bg7 Bg8 Q5g4 Ng6 Qg5 Bd6 Qgh4 Ne5 Qef4 Qe4 Qhg4 Kd4 c3 Kc4 c2 Qd4 c1N Qa6+ Nb7+ Kb5 Q4e4 Qa4 Nc5 Ka5 Qgf4 Qb5
kbnQQr2/1nBKRNPb/3Rr3/7P/2b2P2/R1NnB3/1Q2b3/r3N2b b - - 0 1 illegal: No proof kernel
1nb3B1/3nb1K1/3QbQ1P/N1BR1NbP/1Q3Brn/4R2n/1P6/2k2Rnq b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 b5 a4 a5 axb5 Ra6 bxa6 Bd6 Ra4 Be7 Ra1 Bf8 Kf2 Ke7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 d4 f5 e4 c4 h6 c3 a7 c2 a8Q a4 h3 a3 d6 a2 d7 Nf6 d5 Ng4+ Ke6 Be7 Kf7 Nf2 d6 Rg8 Bd2 c1B Be1 f3 h4+ Kf4 h5 Ke3 e5 g5 e6 g4 Bc4 g3 Qb7 f4 Bb4 g2 Ne2 g1N Ng3 Rg4 Nd2 Nfh3 Nb3 f2 Na5 f1B Qb5 Qh8 d8Q f3 d7 f2 Qd6 Bd2 Rb1 a1N Rd1 Nb3 Bc5+ Qd4 Bd5 Bc4 Qb4 f1N Nf5+ Kd3 Q8b6 Kc2 d8B Ng3 Bc7 Bdg5 Qa6 Qe3 Kg7 Qf3 Rd3 Kc1 Qac6 Bd8 e7 Qd1 e8R Bde7 Bg8 B4e6 Rd5 Qf3 Bd4+ Nc5 Qcb6 Ncd7 Bc5 Bf7 Qf6 Be6 Qd6 Qf1 Rh2 Qf3 Rf2 Qh1 Rf3 Nf1 Rf8 Nd2 Re3 Ndf3 Qh2 Nc6 Bf4 Ncb8 Rf7 Nh4 Qhd2+ Kb1 Qd3+ Kc1 Qa6 Ne5 Qd6 Ned7 Qfd4 Nc6 Ng3 Bf5 Be5 Be6 Rf1+ Kc2 Nf5 Ncb8 Bg3 Ne2 Qf6 Neg1 Rff3 Kb1 Bf4 Kc1 Rf1+
3brn2/1KQ5/2N3NP/r4N1n/PQ1n1R1R/PkBR4/r4Qrb/b4B1b b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 a5 cxd5 a4 b3 Kd7 bxa4 Ke8 h4 g5 g4 h5 Bh3 Qd6 Bg2 Qh6 Bh3 gxh4 Bf1 h3 Ba6 h4 Bf1 Qh5 gxh5 Ra7 Bg2 Ra6 Bf1 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 e5+ Kc4 c5 Kb5 h2 Kb6 e4 d4 c4 f4 h3 f6 c3 f5 c2 f7 e3 f6 e2 h6 e1B a3 Ra5 Bg5 c1B Be2 Ne7 Qb3 Ng6 Nc3 Nc6 Qb2 Bg7 f8R Bf4 f7 Bh4 Nd1 Bd7 Rd8 Re8 Ne3 Nf8 Nf3 Bge5 Rhf1 h1N Bf6 h2 Rf2 Ng3 Bf1 Bhg5 Nh4 h1R Ng6 Rg1 Qb3 Nh5 Qb4+ Rc5 Bh8 Bh2 Rf4 Rg2 Rd1 Bg7 Rd3 Bh4 Rc8 Bf5 Rc7 Be4 Re7 Bf3 Ree4 Bg5 Rh4 Ra2 Ref4 Bh1 Qd2 Ra5 Qb4+ Kd7 d6 Ke6 Nf5 Kd5 Kc7 b5 d7 Bd8+ Kb7 Rg2 Qe1 Kc4 d5+ Nd4 d6 b4 Qf2 Be5 Bg7 b3 Bf6 Ne6 f8Q b2 Qe7 Nf8 Bg7 Bb6 d8N b1R d7 Ra1 Nc6 Ra2 d8Q Bf6 Qdd7 Bd8 Qc7 Be5 Rd1+ Kb3 Bf6 Nb5 Rd6 Bb2 Bc3 Ba1 Rd3 Nd4 Qb4#
6n1/1Nn1q2n/k7/r2q1nBK/rPRRP3/Qq1RPN1N/q2QB3/1q5Q b - - 0 1 legal: proof: a4 c5 d4 cxd4 g3 f5 f3 b5 axb5 e5 Kf2 e4 fxe4 f4 Ke1 Qf6 Bd2 Qh4 Bc1 Qd8 Na3 g5 Nb1 g4 Ra3 f3 Ra1 Bb7 Nc3 Bd6 Nb1 Bf4 gxf4 g3 h3 Bd5 Ra5 Be6 Ra1 Bg4 hxg4 Qf6 Bd2 Qe7 Bc1 Qd8 c4 a5 b4 h5 b6 d5 e3 Kd7 g5 Kc6 b7 Kb6 g6 g2 Kf2 d3 Kg3 a4 f5 a3 c5+ Ka6 f6 d4 Kh4 f2 c6 a2 g7 Qe7 Nh3 g1N Be2 f1N c7 Ng3 c8N Nf5+ Kg5 h4 Nd6 Rh7 Qd2 Rh5+ Kg4 Ra7 f7 Nf3 f8Q Ng5 Bb2 Nh7 Rc1 Ra8 Rc4 Ra7 Qe1 d2 Qh1 d1Q Nd2 d3 Nf3 d2 Bf6 Qb3 Bg5 d1Q Qd8 Qd5 Rd1 a1Q Rd3 Qaa2 Qd7 Nc6 b8R Ncd4 Ra8 Ne6 Nb7 Nc7 Rd8 Ra8 Nf2 h3 Rdd4 h2 Nh3 Kb6 Qa4 Ra5 Qa3 Ka6 Rd7 Rh6 Rd8 Rc6 Kh5 Rc5 Rd3 Ra4 Rd7 Rca5 Rd6+ Qc6 R6d4 Qce6 Qhc1 h1Q Qd2 Ngh6 g8Q Qd5 Qg7 Qhb1 Qe5 Ng8 Qh2 Qab2 Qg1 Q2a2 Qh1
3n2K1/1R2BPn1/N5r1/1B1nQ2P/2r1r1N1/1rQRrPN1/k1B1R1r1/2b3n1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 axb5 f5 exf5 h4 h3 g5 Bd3 Qb6 Be2 Qh6 Bf1 Bb7 Na3 Bf3 Nb1 Qh5 gxh5 g4 Ne2 g3 Ng1 Bg4 hxg4 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 Kf7 Kf3 d5 Kf4 e5+ Kg5 a5 b4 e4 c4 d3 f3 d4 b6 e3 b5 d2 c5 d3 c6 a4 c7 h3 c8Q g2 f6 e2 b7 e1R b6 a3 Qc7+ Ke6 Kg6 Kd5 Kf7 a2 g5 h2 g6 Nc6 b8N Kc4 g7 Re3 b7 Ra4 Nc3 Ne7 g8B Nf5 Qe5 Bh6 Nd7 Ng7 Qe1 Kb3 Nb5 d1N b8R d2 Bh7 Rae4 Rb7 Nc3 Ne2 d1R Ba3 g1N Be7 Rd2 Ng3 Nd5 Rd1 a1R Nc7+ Ka2 Bb5 Rg2 Q1c3 Rb8 Rd3 Nd8+ Kg8 Rc1 f7 Bf4 Nf6 Rcc2 Qc6 Rcc4 Na6 Bg5 Ng4 Bh6 Ra7 Rb6 Qc5 Rg6 Rb7 Bg5 Rd1 Rb3 Rd3 Bc1 Qc6 Nh3 Rg1 h1R Re1 Ng1 Qcc7 Rhh2 Qc3 Rge2 Q7e5 R2e3 Re2+ Rb2 Ba4 Rg2 Bc2 Rgc6 Bf5 Rb3 Bd7 Rg6 Bb5
nk5Q/1P1R1R1P/QbR2K2/2BN4/5bPn/3N1b2/b1nnr1Nn/Q1n4B b - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 h5 g4 a5 f4 e5 Na3 exf4 Nb1 Qd6 Bg2 Qg6 Bf1 h4 h3 Qh5 gxh5 g4 Na3 g3 Nb1 Ra6 Qc2 Rg6 Qd1 Rg4 hxg4 Bf5 Rh3 Bd7 Rh1 Bc8 d4 Kd7 Kd2 c5 Kd3 Kc7 Ke4 f5+ Ke5 g2 b4 h3 e4 h2 b6+ Kb7 d6 c4 d5 a4 d7 a3 d8Q a2 b5 c3 h6 f3 d6 c2 h7 f4 d7 f2 Be3 c1N Ne2 g1B Bg2 f1N Nbc3 f3 Nd5 f2 Nef4 Ne7 Kf6 Ng3 e5 f1N e6 Nge2 Bc5 Nb3 Rc1 Nf5 e7 a1N e8Q Nc2 Qe6 Na6 Nd3 Ka8 b7+ Kb8 Qd6+ Nc7 Qa6 Bh6 Qe8 Ng7 d8N Nf5 Ne6 Nh4 Nef4 Nbd2 Be4 Bf2 Ng2 Na8 Rg1 h1B Qe1 Nfg3 Rf1 Bf4 Qd8 Rg8 Qf8 Rg5 Qh8 Re5 Rd1 Nc1 Bf3 Ndb3 Qea5 Re1 Qa1 Nd2 Nc3 Kc7 b8R Re7 Ne3 Bb7 b6+ Kd7 Bd6 Be5+ Kg5 Bd5 b7 Ba2 Nb2 Ndb3 Rc8 Bg1 Rd4 Nd2 Rc6 Bg2 Rf2 Ngf1 Nd3 Nh2 Bd5 Bh1 Rf7 Bf4+ Kf6 Bg2 Bf3 Bh1 Be2 Bhd5 Bf3 Be4 Bh1 Bf3 Ng2 Bge3 Re4 Ba7 Bc5 Bb6 Rf8 Re8 Ree6 Kd8 Nd5 Kd7 Rf7+ Kd8 Ne7 Kd7 Rcd6+ Kc7 Rd7+ Kb8 Red6 Bh6 Nd5 Bf4 Qg7 Re1 Rc6 Re2 Qh8+
KR2n2N/1r1R3N/3P1qBp/1PBQB3/1bQ1bP2/b4n2/1r5r/k4nRN b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 h6 g4 b3 f4 b2 f6 e6 g6 c6 f7 Na6 g5 Be7 f8B Bb7 g7 Qc8 g6 Rh7 Nc3 b1R Nge2 Nc5 Rg1 Ra2 Bb2 Qd8 Ng3 Nf6 g8R Ne8 g7 Ne4 Nh1 Ng3 Bd3 Nf1 Bg6 e5+ Ke4 Kc5 d4+ Kc4 d6 c5+ d5 Kb4 d7 c4 Rh8 Qb6 g8Q Qf6 d8N Bd6 Qe2 Kb3 Nf7 Bb4 Bc5 Rg7 Rh7 Ba8 Nh8 Rb7 Qf3 Kc2 d6 Kb3 Kd5 e4 Kc6 e3 Qe6 e2 Qed5 e1N Ne4+ Kc2 Bc3 Rbb2 Be5 c3 Qe3 Nf3 Rd7 Qg7 Re1 Qf6 Re2+ Kb1 Qed3+ c2 Ng5 Ka1 Nh7 c1B Q3c4 Bcd2 Reg2 Ba3 Re2 Bdb4 Re3 Rc7+ Kb6 Bb7 Ka7 Ba8+ Kb8 Bc6 Rc3 Rb7+ Ka8 Rh2 Qd2 Be4 Qdd5 Nh4 Rcg3+ Rab2 Rg5 Nf3 Rf5 Qe6 Rf8 Qf6 Rg8 Ng7 Rc8 Ne8 Rb8
3nrRn1/1Q4K1/1bP1k1n1/1PQ2NR1/1R1r2pb/P5Nr/B1Q3Bq/1N3q2 b - - 0 1 legal: proof: f4 a5 g4 b5 c4 e5 fxe5 h5 cxb5 Bb4 gxh5 Kf8 b6 Ke8 b3 Bc5 b4 Bf8 d3 c5 Be3 c4 Bc5 c3 b5 Bb7 Be7 Bd5 Bb4 Bc4 dxc4 axb4 Kf2 Ke7 Kg3 f5 Kf4 d5 Kg5 d4 Kg6 f4 h4 d3 e4 c2 e6 c1B a3 b3 h6 b2 e5 f3 b7 d2 h7 f2 c5 Na6 b8Q Qd7 h5 Qd6 c6 Nb4 h6 Qd7 Qc2 d1R Bg2 f1N Rh4 Qc7 Qb7 Bg5 Ne2 Ne3 Ng3 Nbd5 Rb4 Rd4 Ra2 Nf5 Ra1 Ke8 e7 Nd6 Ra2 Nf7 Qc5 Ngf6 Qc2 Bh4 Ra1 Rg8 h8R Nd8 h7 Ra7 Nc3 Qd6 Rg1 Ra8 Nb1 Nf4+ Kf5 Kf7 e8N+ Qc7 e6+ Ke7 Nd6 g5 Qc5 Ng6 Qc2 Rg7 Rg8 Rf7 h8Q Rh7 Qc5 Bh6 Rf8 Ng8 Qc2 Rb8 Qe5 Bg7 Qec5 g4 Rh1 Bh6 Rh2 Be3 Rh3 Bf6 Rh5 Bg1 Rg5 Rh3 Rh5 Bh4 Rg5 Be3 Nge4 Ra8 Qcb6 Rd2 Nbc3 b1Q Qd4 Qg1 Nb1 Qh2 Ng3 Nf7 Qdc3 Bb6 Qc5 Nf4 Q2c3 Rd4 Qc2 Nd3 Kg6 Nf4+ Kh7 Ng6 Ndf5+ Kf6 e7 Ke6 Kg7 Qf4 Kh7 Qf1 e8B Kf6 Bd7 Rb8 Be6 Re8 Bed5 Ke5 Ba2+ Kf6 Rc4 Ke6 Kg7 Nd8 Rb4+
3Nq1b1/2NP1Rp1/8/Q2BN3/1B1nQq1k/br2Q1r1/P1PB1n1b/qR3K2 b - - 0 1 legal: proof: e4 f5 exf5 a5 b4 axb4 g3 Ra3 g4 Ra8 d4 h5 gxh5 c5 dxc5 d6 cxd6 Rh7 Ne2 Rh6 Ng1 Rh8 f4 Kf7 h4 Kf6 h6 e5 h5 b5 h7 e4 d7 b3 h6 e3 Nf3 b4 Na3 e2 Bd2 b2 Nb5 b1Q Ne5 b3 Bg2 b2 Nc7 Qc1 Rf1 b1Q Bd5 Qb4 Rb1 Nc6 Kf2 Qcb2 Qc1 Qa1 Qa3 Qd6 Qa5 e1B+ Kg1 Qb4 Rf2 Rb8 Kf1 Nd4 Rf3 Bg3 Rf2 Ke7 f6+ Kd6 f5 Bb7 f7 Ke7 Rf3 Kf6 Rf4 Kg5 f6 Bc5 f8N Qe8 f7 Bh2 Nfe6+ Kh5 f8B Nf6 Bd6 Ng4 Nd8 Nf2 Rf7 Kh4 Bf8 Qa4 Bd6 Ba3 B6b4 Rf8 h8Q Ba8 h7 Bb7 Re7 Rf3 Rf7 Rg3 Qf8 Bc6 Qfc5 Ba8 Qc3 Rb7 Qe3 Rb5 Bf8 Rb3 Bc5 Qb4 Bf8 Qd6 h8Q+ Qh6 Qg8 Qf4 Bfb4 Bc6 Qf8 Bb7 Qfc5 Ba6+ Qe2 Bd3 Qcb6 Bh7 Qe4 Bg8 Qbc5 Bg1 Qc3 Bh2 Qce3
1n1Qq1N1/P4R2/2Q1B3/3n2br/2KbkB1n/4q3/P1b3pP/NQ1R1NBr b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 d5 bxa5 c5 g4 Ra6 gxh5 Ra8 d4 cxd4 cxd5 Qd7 Qd3 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 Kf6 f4 e5 h6 b5 h7 g5 a6 g4 d6 b4 d7 e4+ Kc4 d3 a7 e3 Qc2 b3 Bh3 d2 Na3 d1N Nf3 e2 Rf1 e1B Qb1 g3 Nc2 b2 Nd2 Qe8 d8Q+ Ne7 Rf2 g2 Nf1 Bh6 Bg4 Rg8 h8N Rg5 Nf7 Nc3 Be3 Bg7 Nh6 Rh5 Bb6 Bd2 Ng8+ Kf7 f6 Kg6 f7 Bd4 f8Q Nf5 Bc7 Nd5 Qc5 Nh4 Be6 Bd7 Bb6 Ba4 Qc6 Bc1 Qdc7 Bd2 f5+ Kg5 f6 Bf4 Ne1 Bc2 f7 Kg6 f8B Bg5 Qd1 b1Q Rf7 Qb2 Qb1 Qa3 Qd8 Qe3 Be7 Na6 Ba3 Rb8 Bd6 Rb7 Bf4 Nb8 Bc5 Rb3 Qb2 Rd3 Rd1 Rd2 Qb1 Rf2 Nd2 Rf1 Bb6 Rh1 Nf1 Be4 Nc2 Bf5 Rf8 Be4 Na1 Bc2 Bf7+ Kf5 Be6+ Ke4 Rf7 Qh3 Be3 Qg3 Bg1 Qe1 Bc7 Qe3 Bf4
r4RQ1/R2q1b2/N1p1n1Bk/NP2K3/Nn1PP3/n1r2b2/n7/2Q1RQBr b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Be7 gxf5 g4 h4 Bg5 hxg5 exf4 Kf2 Kf7 e4 Kg7 d4 h5 b4 a5 d6 a4 b6 f3 Kg3 a3 Kf4 f2 b5 g3 d7 c6 g6 g2 b7 h4 f6+ Kh6 g7 a2 f7 h3 f8Q h2 Qf3 Ne7 Be2 f1R Nd2 Nd5+ Ke5 Nb4 Qc5 N8a6 g8Q Nc7 b8N Ne6 Na6 Qe7 d8R Qd7 Qf5 Rf3 Rf8 Rc3 Bh5 Rh7 Ne2 g1N Bg6 Rh8 Rb1 a1N Qf1 Nac2 Ra1 Na3 Nb3+ Re3 Rf4 Rc3 Na5 Rh7 Be3 Rh8 Ng3 Ne2 Bg1 Nc1 Ne2 Nca2 Rf8 Rh7 Nf4 Rh8 Nd5 Rh7 Nb6 Rh8 Bf2 Rh7 Rg1 h1B Na4 Bf3 Rh1+ Kg5 Qcc4 Rh2 Re1 Kh6 Rg1 Rh4 Rg2 Rh1 Bg1 Qa7 Rc2 Bd7 Rf2 Be8 Rf7 Qe7 Rg7 Qd8 Ra7 Qd7 Qc5 Bf7 Qcc4 Bd1 Rf4 Bf3 Rf5 Be8 Rf8 Bf7 Qc5 Rd3 Qc2 Rc3 Qc1+
2R1rnR1/Rb1PqQ2/Q3b3/2r2n1B/1n4N1/N2PBNk1/1pn2rP1/4Q2K b - - 0 1 legal: proof: c4 d5 cxd5 a5 e4 g5 b4 axb4 h4 f5 exf5 Kf7 hxg5 Ke8 f4 Bh6 g6 Bg5 fxg5 Qd6 Rh5 Qd7 Rh1 Qd8 Kf2 Kd7 a4 Kd6 d3 Ke5 g7 c5 g6 h5 d6 b5 a5 h4 f6 h3 f7 b3 f8N c4 a6 c3 a7 h2 d7 b4 Kf3 b2 Qd2 b3 Nh3 c2 Kg3 Nc6 Be2 Nf6 g8R Bb7 g7 Nh7 Ra6 Nb4 Rg1 h1N+ Kh2 Ng3 Rh6 Nf5 Nc3 b1B Ra6 b2 Qe1 Ba2 Be3 c1R Kh1 Be6 Nb1 Rc5 Nf2 Rac8 a8Q Qe8 Bd4+ Kf4 Ra7 Kg3 Ng6 Nf8+ Nh4 Rh6 Bh5 Rf6 Be3 Qf7 Bg6 Re8 Bh5 Rb8 Ra3 Rcc8 Ba7 Ng6 Rh8 Nd6 g8Q Bh3 Qf1 e5 Be3 e4 Bc1 Be6 Ng4 Rf2 Nf3 Qe7 Qf7 e3 Rg8 e2 Be3 e1N Ra4 Rc6 Na3 Nf8 Qa5 Rc3 Qb6 Rd8 Ra7 Nf5 Qa6 Re8 Qe2 Nec2 Rf1 Ncd4 Rc1 Rc6 Rc5 Ndc2 Qe1 Rcc8 Re5 Rc3 Rc5 Rc4 Rc6 Rc5 Rc8
2b5/2N2RQ1/1bqp2BP/2r2nP1/k2R2Nb/1b3N1K/1P2q1n1/BQ2r1RB b - - 0 1 illegal: Other
1N2k3/BRBb1Q1r/RprPn1b1/3B4/1KQ2P2/3b1Q1N/N3qP2/3qn1b1 b - - 0 1 legal: proof: c4 f5 b4 a5 e3 d5 cxd5 f4 exf4 axb4 h4 g5 hxg5 b6 a4 Kd7 a5 Ke8 a6 Qd6 Bd3 Qc6 Bf1 Qb7 axb7 Bd7 Ra4 Be6 Ra1 Bc8 d4 c5 Kd2 h5 g4 e5 d6 e4 d5 b3 Kc3 e3 g6 h4 g7 b2 g5 h3 g6 e2 Nf3 e1Q+ Qd2 c4 Ng5 h2 Ra6 Be7 Ra7 Nd7 b8B Nf8 Ra6 Rh7 Ba7 Ne6 Nh3 Bh4 Bg2 Bg3 Kb4 c3 Qe3 c2+ Nc3 b1B Ba3 c1Q Qf3 Qe2 Na2 Qcd1 Rg1 h1B d7+ Kd8 Bb2 Nh6 Be5 Nf5 g8Q+ Ke7 d8N Nfd4 g7 Bd3 Bc7 Bh2 Re1 Bg1 d6+ Kd7 Nc6 Nc2+ Kb3 Rb8 Qf8 Rb7 g8Q Bg6 Qf5 Rb8 Q5e4 Rb7 Qg7+ Ke8 Qc4 Bd7 Qf6 Rb8 Qf5 Rc8 Nb8 Qa1 Rc1 Ne1 Kb4 Qd4 Qb3 Qa1 Bd5 Be4 Qf3 Qd4 Rc3 Qdd1 Re3 Bd3 Re5 Qe4 Q5h5 Qee2 Rg5 Bf7 Rg7 Bfg6 Bd8 Bb5 Qf5 Rc5 Rb7 Bd7 Bc7 Rc6 Qf7+
1B2B3/NK3B1P/2pN1k2/1P1n3q/3nn3/nRbN1Q1b/P2rQ2R/3Q2qr b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 a5 b3 a4 bxa4 b5 axb5 Kd7 Bb2 Ke7 Bc1 Ke8 Kf2 Ke7 Kf3 f5 e4 g5 d4 Ra5 h4 Ra3+ Nc3 Kf6 e5+ Kf7 h6 Be6 h5 Bd6 h7 Nh6 Ne2 Bd7 e6+ Kf6 e7 Bb4 e8B Ke7 d6+ Kf6 d5 Na6 Rh2 Nc5 Rb1 Ne4 Rb3 Qe7 Be3 Qf7 Nc1 Ra6 Ba7 g4+ Ke2 g3 Kd3 f3 Kd4 g2 Bb8 f4 Nd3 f2 Qe2 Bf5 d7 g1Q d8N f3 d6 Bh3 d7 Qfg6 Kd5 Nf5 h6 Nd4 Bg2 f1N Nc6 f2 Na7 Nfd2 Bf3 f1N Bh5 Nb1 d8Q+ Be7 Qd7 Bb4 Qdg4 Na3 Qgf3+ Ke7 Qd1 Q6g4 Qfe2 Kf6 Bhf7 Rb6 Na4 Qf3 Nac5 Bc3 Nb7 Re6 Nd6 Re7 Rf2 Rd7 Rh2 Qh5+ Ne5 Nf3 Kc6 Nd4+ Kb7 Ne3 Nd3 c6+ Kc8 Rg8 h8Q+ Rg7 h7 Nd5 Qf8 Rg2 Qe3 Rd2 Qee2 Re7+ Bd7 Re5 Kb7 Rf5 Bde8 Rf1 Qde1 Qf2 Q1d1 Rh1 Qg8 Qg3 Qgg4 Qg1 Qgf3+
3B2B1/rQ1Qq1k1/R3PP1n/b5rp/3B1Nq1/NKR2P2/nn4q1/1r2Q2N b - - 0 1 legal: proof: b4 e5 c4 b5 cxb5 g5 a4 e4 h4 gxh4 a5 d6 b6 e3 b5 Ne7 a6 Bb7 axb7 Na6 dxe3 Nb8 e4 Ng8 e5 Qd7 Qa4 Qe7 Qd1 Qd8 Kd2 a5 Kc3 h5 e4 c5 g4 d5 e6 h3 e5 d4+ Kb3 h2 g5 d3 f3 d2 g6 Rh6 g7 Qf6 Ne2 Na6 b8B Qe7 b7 Ra7 b6 Rg6 Na3 Nh6 g8N Rg5 Bb2 Nb4 Nf4 Na2 Qe1 d1N Bd4 Nb2 Rg1 h1Q Bd3 Qh3 Bc7 Qg2 Bd8 Qg4 b8Q a4+ Kc2 c4 b7 c3 Qc7 Qc5 b8Q Qe7 Bh7 Qg2+ Qe2 Qg4 Rgc1 Qg2 Nc4 a3 Kb3 c2 Qe1 Qg4 Qbb7 Qg2 Rd1 c1Q Rd3 Qe3 Qd6 Qe4 Rc3 Qf5 Qdc7 Qfg4 Qcc8 Qf6 Qcc7 Bb4 Qd7+ Kf8 Ne7 Ba5 Nf5 Qe7 Ng3 Kg7 Nh1 Nb4 Rac1 a2 Bg8 a1R Na3 Rb1 Rc6 Na2 R1c3 Nb4 Rd6 Na2 Ra6 f5 exf6+
1Q2q3/n1n2kbQ/1q1P4/NQ1Pn3/2r2R1P/R2q3B/pBN2rrN/K5B1 b - - 0 1 legal: proof: e4 b5 a4 d5 axb5 g5 c4 f5 cxd5 g4 exf5 g3 Be2 gxh2 f4 h5 Ra3 h4 Re3 h3 Rb3 Be6 Ra3 Bf7 Ra1 Bh5 Nf3 Bg4 Rf1 h1N Ng1 h2 Rf3 Bh3 gxh3 Nf6 h4 Ng8 d4 e5 Kd2 a5 Kc2 c5 b4 e4 Kb2 e3 f6 a4 f7+ Ke7 f5 c4 b6 Bh6 f8Q+ Kd7 b7 Nc6 b8Q Qb6 d6 Bg7 f6 Ke6 f7 Nf2 Bf1 h1Q Qfe8+ Nge7 f8B e2 Raa3 e1Q Bh3+ Ng4 Qd3 c3+ Ka1 c2 Bb2 c1R Qh7 Na7 Rf4 Qf3 Qb5 Qd3 Nf3 Rc4 Nh2 Nd5 Be7 Rf8 Bf6 Nc7 d5+ Kf7 Bfd4+ Qf5 Bg1 Qe8 Re3 Qd4 Na3 Qb6 Nc2 a3 Ref3 a2 Ra3 Qbe3 Q5b7 Qb6 b5 Ne5 Qc6 Qe3 b6 Qd4 b7 Qb6 Qb5 Rg8 Qd8 Rc8 b8N Rf8 Rd4 Qd3 Nc6 Rg8 Rg4 Rf4 Na5 Rf2 Rd4 Na6 Qh6 Rc4 Qb8 Nc7 Rg4 Bf8 Rd4 Rgg2 Qh7+ Bg7 Rf4+
Qq3nK1/5Rn1/PB2r1Nk/2nq1N2/QPp1B3/5q2/Bbb2RPb/1R5Q b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 b3 b5 a3 b4 axb4 Qd6 Nf3 Qf6 Ng1 Qd8 Na3 a5 Nb1 a4 Rh4 a3 Rh1 Ra4 bxa4 Bh3 Rh2 Bd7 Rh1 Bc8 Kf2 c5 Kf3 f5 d4 Kf7 e4 Kg7 g6 h5 a5 h4 e5 h3 e6 a2 d6 h2 a6 Bd7 e7 Nh6 e8Q Qg5 d5 Qd8 Nd2 Ba4 d7 Qg5 d8Q Bd6 Nb3 Bc7 d6 Nd7 Ne2 Nf8 Nbd4 Bc2 Rb1 a1B d7 Bb2 Be3 Be5 Rg1 h1Q Qa8 Qh2 d8R Bd6 Qa4 Rh7 Kf2 f3 Nf4 Bb8 Bd3 c4 Rf1 Bd6 Be4 Bc7 Rd6 Qd8 Rf6 Qd5 Nb5 Bb8 Bb6 Bd6 Ke3 f2 Nd4 Be5 Re1 f1Q Re2 Bb8 Rf2 Bd6 Nd3 f4+ Kf3 Nf5 Kg4 f3 Kg5 Rh6 Nf4 Qd3 Qh1 Be5 Rd2 f2 Rf7+ Kh8 g7+ Kh7 Re2 f1N Ng6 Nd2 Rf2 Bc7 Kf6 Nb3 Q4e8 Nc5 Qa4 Ng3 Ke7 Qf3 Nf5 Bce5 Nf4 Nh5 g8B+ Kh8 Bh7 Ng7 Bg6 Qhg3 Bh5 Kh7 Ng6 Qh3 Bg4 Bh2 Bh5 Qfg3 Be2 Qb8 Bd1 Bd3 Bb3 Qf3 Ba2 Bc2 Nh8 Rf6 Ng6 Rd6 Rf6 Re6+ Kf7 Nd3 Nd4 Kh6 Kg8 Nc5 Nf5+ Kh5 Rf7 Kg5 Nfe7 Kh6 Nf5+
R2rRK1b/3N4/pn2PN2/PP2b1N1/B1rQB1Rq/3rb3/3Q2r1/1rB2k2 b - - 0 1 legal: proof: f4 b5 g4 f5 c4 e5 fxe5 f4 d4 c5 dxc5 bxc4 h4 g5 Qb3 Bb7 Qd3 Be4 Qd1 Bf5 gxf5 Kf7 Qb3 Ke7 Qd1 Ke8 Kd2 g4 Qa4 Na6 Ke1 Nc7 Qc2 Ne6 Qd1 Ng5 hxg5 Kf7 Bd2 Ke7 Bc1 Ke8 Kd2 Ke7 Kc3 h5 Kd4 d5 a4 c3 e4 g3 b4 a6 c6 h4 Kc5 c2 g6 g2 c7 f3 c8B d4 e6 Kf6+ e7 Ke5 b5 d3 f6 d2 a5 Kf4 g7 Ke3 f7 Kf2 e5 h3 e6 h2 Ra4 Nf6 g8Q Nd7+ Kd6 Bg7 f8N Nb6+ Nd7 Rh4 e8R Bh8 Bb7 Rc4 Be2 Qh4 Nc3 Rd8 Qg5 Be5+ Ke7 Bh8 Ba3 c1B Be4 Bb2 Nd5 Bbe5 Qa1 d1R Qd4+ Ke1 N5f6 f2 Nh3+ g1B Kf8 f1R Bc1 Rd3 Bd1 Rf2 Qd2+ Kf1 Rb4 Re2 Ba4 Rg2 Qf4+ Ke2 Ng5 Be3 Rf1 h1R Rf3 Bf2 Qd2+ Kf1 Rg3 Be3 Rg4 Rc2 Rc4 Rhg1 Rc8 Rc4 Qa2 Rb2 Rb8 Rgg2 Ra8 Rb1 Qd2
6Rn/1nRrQ1p1/3B1n2/N2R1K2/kb1rPNBq/1P5n/1P1QQN2/4q2n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 f5 Kf3 a5 Kf4 d5 h4 Kd7 e4 d3 h6 d2 h5 d4 b6 Kc6 e6 d3 h7 Kb5 e7 a4 e8N a3 h6 a2 b7 Ra4 Rh4 Nd7 Rh2 Ne5 Qe2 d1Q Bh3 Nf6 Bg4 Qe1 Nh3 Rd4 b8R+ Ka4 Nd6 d2 Nf2 d1N Nb7 Bb4 Rh5 Nf7 Na5 Be6 Bd2 Re8 h8Q Re7 h7 Bb3 Qe8+ Red7 Qe7 Nh8 Ke5 f4 Kf5 f3 Bf4 Qf1 Bd6 Qe1 Nd3 f2 Nf4 f1N Rg5 Qc7 Rg8 Nf2 Rh5 Qd8 Rg5 Nf7 h8Q Nh3 Qh5 Nh8 Qd2 Ng1 Qhh2 Nh3 Qhe2 Ng3+ Ke5 Nh1 Kf5 Qc7 Rh5 Qc3 Rg5 Qcg3 Rh5 Bc5 Rg5 Qh4 Nc3+ Kb4 Nd1+ Ka4 Nf2 Bb4 Rd1 a1N Rh5 Bc4 Rg5 Nb3 Rh5 Nc5 Ra1+ Kb5 Ra3 Nb7 Rc3 Ka4 Rg5 Ba6 Rc7 Bd3 Ke6 Bb5 Rd5 Bc4 Kf5 Bb3 cxb3#
KnRB3k/N4r2/Q4pNq/Rn1P4/5B2/1QnN2r1/r1RPbnP1/5qB1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 f4 g4 e3 g3 Bd3 Na6 Bf5 exf5 hxg3 Bc5 g4 Bd6 g5 Be5 fxe5 Nb8 Kf2 Kf8 b4 Kg7 e4 c5 Ke3 a5 g6 h5 b6 c4 Kd4 a4 Kc5 c3 e6 a3 e5 a2 e7 f6 e8Q c2 b5 h4 b7 h3 e6 h2 e7 f4 b6 f3 Ne2 f2 Na3 f1N Qc6 Rh7 e8R Bf5 Nb5 Be6 Bb2 c1N Nf4 Qd7 Qb3 Bf7 Bd4 Ng3 Nd3 Nge2 Bg1 Kh8 Na7 Nc3 Rc8 Qh3 Kd6 Qf5 Kc7 N1e2 Rc1 a1Q Rc2 Qh3 Qcc4 Qh6 Qa6 Nd7 b8B Nb5+ Kb7 Nec3 Be5 Qf1 Bf4 Be8 Bc7 Rf7 Bd8 Nb8+ Be7 Nc7 Bd8 Bb5 g7+ Kh7 Nb4 Be2 Nd3 N7b5+ Bc7 Ne7 g8N Kh8 Bd8 Nf5+ Ne7 Ng3 Rc7 Nd7 Rc8 Nge4 Ng6+ Kh7 Kc6 Nf2 b7 Kg7 b8B Kh7 Ne7 Kh8 Bf4 Nb8+ Kb7 Nh3 Bd4 Nf2 Rg1 h1R B4b6 Rh4 Rh1 Nfd1 Bg1 Rg4 Rh3 Nf2 Re3 Bf3 Re1 Rg3 Ra1 Bg4 Ra5 Be2 Qd6 Nb1 Nc6 Rfg7 Ra3 Ra5 Na7 Ra4 Ka8 N1c3 Qa6 Rf7 Raa2 Rc4 Ra5 Ra4 Kb7 Ra1 Ka8 Ra2 Ng6+
1N1R2Q1/1N1q4/Bq2pB2/2nPP1KN/q3RP1R/2n3Q1/r1k2b1r/Q2n3n b - - 0 1 legal: proof: c4 d5 cxd5 f5 g4 fxg4 b4 b5 a4 Be6 axb5 Bc8 h3 g5 Ra5 g3 Nf3 g4 Ng1 g2 Ra1 a5 bxa5 g3 Bb2 Bg4 hxg4 Nf6 Bc1 Ng8 f4 Kd7 d4 Kd6 e4 h5 Ke2 c5 Kf3 e6 b6 c4 b7 h4 a6 h3 a7 h2 g5 c3 Kg4 c2 g6 Rh3 g7 Na6 b8N Qd7 Kg5 Nc5 Nc3 Nf6 g8Q Ng4 Ra4 Nf2 Nge2 g1N Bb2 c1Q Qb3 g2 Ng3 Ne2 Nh5 Qc2 Rb4 Rh4 Na4 g1Q+ Qg3 Nc3 Ba6 Qgb1 Rc4 Nfd1 Ba1 Qb6 Bb2 Nd3 Nc5 Qca4 Rb4 Ke7 Nb7 Nc5 Rf1 h1N d6+ Ke8 d5 Rh2 Qh8 Kf7 Ba1 Nb1 Bf6 Nbc3 e5 Be7 Re4 Bf8 Kg4 Kg6 Rg1 Rb2 Kh4+ Kf5 Qhg8 Ra2 Rg2 Rc2 Rh2 Ra2 Re1 Re2 Rh3 Ke4 Kg5 Kd4 Rh4 Rh2 Bf1 Be7 Re2 Kc4 Re4+ Kb3 Bb5 Kc2 Ba6 Qe8 d7 Qc8 d8R Qcd7 Qg4 Qac6 Qg3 N5a4 Be2 Bc5 Kg4 Bf2 Kg5 Nc5 Na6 Rc8 a8Q Qcb5 Qa7 Ra8 Nb8 Qc4 Qa1 Ra2 Bf1 Qca4 Ba6
n4q1k/1QN2rPn/R2b2K1/1b1Np3/RP1b1B2/4B1Q1/BQ3P1n/N2b2q1 b - - 0 1 illegal: No possible last move, all moves rejected
2B2nb1/r4PRn/b4kn1/1qP4B/2n2Q1R/1NPp1Rq1/Kb2BN1Q/3Q4 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 c5 axb5 Bg7 dxc5 Qb6 f4 Nh6 f6 Ng8 f5 Bf8 Bf4 Qd8 h4 gxf4 g4 a5 g5 Ra6 g6 Ra7 Rh3 Ra6 Qc1 Rd6 Rh1 Rd3 Qd2 Rg3 Qd1 Rg5 hxg5 Ba6 Rh4 Bb7 Rh1 Bc8 Kd2 h5 Kc1 d5 b4 e5 Kb2 a4 b6 f3 f7+ Ke7 b5 d4 b7 f2 b6 e4 g7 e3 g6 a3+ Ka2 d3 Qe1 h4 Qd2 h3 Nc3 h2 Nge2 Nf6 g8B Rh7 g7 Qd6 Qd1 Nbd7 b8Q Qg3 Nd4 e2 b7 e1N Nb3 Ng2 Be2 f1N Ne4 Nd2 Qf4 Nh4 b8Q Ba6 Nf2 Nc4 c3 Ng6 Rg1 h1B Rb1 Bg2 Rh1 Bd5 Rh4 Ne4 Ra1 Kf6 Rc1 Bd6 f8R+ Bf7 Rb1 Ng5 Ra1 Be5 Qc7 Bd4 Rb1 Be3 Qb8 Rh5 Bh7 Bc1 g8B Bb2 Ra1 Nh8 Bg6 Rh7 Bgh5 Rg7 Bh7 Ng6 Rg8 Ndf8 Qbc7 Be6 Qcd6 Ra7 Rg7 Qe3 Qb8 Bg8 Qh2 Qg3 Qb4 Ke5 f6 Kf5 f7 Kf6 Qhh1 Nge5 Bf5 Ngh7 Qh2 Neg6 Na5 Nd6 Qf4 Nc4 Kb3 a2 Rc1 a1Q Rc2 Qc1 Ka2 Nb6 Nb3 Nc4 Nh3 Qce3 Beg4 Rc7 Rf2 Qe8 Be2 Rb7 Rf3 Qb5 Nf2 Ra7 Bc8+
1q1rQQ1b/rR1Nbp2/2rP1k2/2B1n2R/Nb1KB3/2P2NRB/1P2r3/7q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 a4 exf4 axb5 d4 Nh3 c5 Nc3 Na6 Rb1 Bb7 Ra1 Nb4 Ra6 Na2 Ng1 Bd5 cxd5 c4 Nb1 c3 Ra4 c2 Ra6 Nc3 dxc3 Qb8 Ra1 Qd8 Kd2 Ke7 Kd3 a5 e4 g5 h4 a4 h6 a3 h7 g4 d6+ Kf6 h5 g3 b6 g2 h6 f3 e5+ Kg6 b7 f2 b8N a2 e6 Qb6 e7 Qc7 e8B Nf6 Na3 Nd7 Na6 Kf6 Rh3 Bg7 Qe1 Rc8 Nc5 Qb8 Na4 Rc6 Be3 c1B Nf3 g1B Rg3 Ne5+ Ke4 d3 Nc4 d2 Kd4 Rf8 Ncb6 Bh8 Bh3 f1Q Bed7 Bf2 Bdf5 Rd8 Be4 Qh1 Qe2 Bg7 h8Q d1R+ Nd2 Rg1 h7 Re1 Qf8 Bh8 Nf3 Bg1 Qb5 Re2 Bf2 Bg5 Be3 Rcc8 Qbe8 Rc6 Re1 a1R Bf2 Bg7 h8R Bh4 Rh5 Bh8 Nc5 Ra7 Ra1 Ra8 Ra7 Bg5 Rb7 Ra7 Nca4 Bh4 Kd5 Bg5 Be1 Bc5 Bf2 Bb4 Bc5 Bh6 Qg8 Bf8 Kd4 Be7 Qgf8 Qc8 Rc7 Qa8 Rb7 Qb8 Nd7+
4R2Q/b1Br2k1/b3n3/N2P2N1/K1R1Pp1Q/b1bnPq2/B4bbR/Q5B1 b - - 0 1 legal: proof: c4 a5 a4 f5 h4 e5 f3 b5 axb5 d5 cxd5 e4 h5 Qd6 fxe4 Qh2 g4 f4 Bh3 Ra6 Bf1 Rf6 h6 Rf5 gxf5 Qxh6 Ra3 Qh5 Ra1 Qh2 b4 Kf7 d4 h5 Kd2 c5 Kc3 g5 Kb3 c4+ Ka4 g4 b6 c3 b7 g3 f6 h4 d6 h3 d7 c2 d8Q g2 b5 Nh6 d5 Nd7 b8Q Rh7 b6 Ng4 b7 Bc5 Qa7 Qg3 b8B h2 Nf3 g1B Be3 c1B Nbd2 Nf2 Bc7 Nf8 Nc4 B1a3 Rc1 Ne6 Ng5+ Kg6 f7 Qf3 f8R Rd7 Re8 Nd3 Bf2 Ba6 e3 Kg7 Qaa8 Ba7 Rc3 Qg2 Qh5 Qg3 Be2 Qf3 Bd1 Qe2 Bb3 Qf3 Bh4 Bf2 Ba2 B7c5 Rc2 Ba7 Rhc1 h1B Rd2 Be1 Bf2 Bg2 Bg1 Bh4 Nh7 Be1 Qdh4 Bf2 Ng5 Bc8 Kb5 a4 Na5 Bb7 Rc4 Bc8 Nc6 Ba6+ Ka5 B3c5 Rb2 a3 Ka4 Bb4 Na5 Bbc5 Bb3 a2 Re2 a1B Ba2 Ba3 Rec2 Bb8 Qa7 Bf6 Qd4 Ba7 Qa1 Bc3 Re2 Bg3 Rf2 Bh3 Rg2 Bf2 Rh2 Bg2 Qh8+
n5R1/PKp1n1N1/5QN1/1bk2rn1/2br1NrP/5R1b/1nP2Q2/1R2B1BQ b - - 0 1 legal: proof: d4 e5 dxe5 a5 f4 h5 e4 a4 e6 g6 e7 d6 e5 Kd7 b3 Kc6 bxa4 Bh6 a5 Bg7 Be2 f5 Bg4 Qf8 e6 hxg4 g3 Be5 fxe5 f4 Qd2 f3 Qd1 Qf4 gxf4 Kc5 Nd2 Kb5 Nb1 Kc6 Kd2 b5 Kc3 g3 Kb4 g5 e8Q+ Bd7 a4 f2 h4 f1N f5 d5 e7 g2 a6 d4 Ka5 b4 e6 g4 f6 b3 a7 g3 f7 d3 f8B d2 Na3 b2 Rb1 Kd6 Qf7 Bc6 e8Q+ Ne7 Nc4+ Kc5 Qd8 Ne3 Qf2 Nd7 Ka6 Nb6 a5 Bb5+ Kb7 Rh5 a6 Rf5 Nh3 g1N Ne5 g2 Nf4 Nh3 Rf1 g1R Neg6 Rg4 Bg7 Ng5 Bc3 Rc8 Qh8 Rg8 a8R Rd8 a7 Rd4 Qf6 Nec4 Rg8 Na8 Qde1 d1B Be3 Be2 Qd1 Bd3 Be1 Bd7 Qdf3 Be2 Qh1 Bb5 Rg1 Bf1 Rg3 Bg2+ Rf3 Bh3 Rd1 b1B Rc1 Nd5 e7 Nb2 e8N Ne7 Ng7 Ba2 Rb1 Bb3 Qg3 Ba2 Bg1 Bac4 Qf2
2kBn2N/2nR1r2/1PK1n2N/1QNRb1B1/2P3p1/Q2r4/r1P2r2/Rn3bQ1 b - - 0 1 legal: proof: g4 b5 e4 f5 exf5 c5 a4 c4 axb5 c3 dxc3 Nc6 f6 Nb8 c4 Ba6 Bg5 Bb7 Bc1 Bc8 f4 h5 g5 Nc6 f5 Rb8 Be2 Ra8 Bf3 Qb6 Bg4 hxg4 f7+ Kd8 Nd2 Qd4 Nb1 Qf6 gxf6 Nb8 Kd2 g5 Kd3 a5 Ke4 d5+ Kd4 e5+ Ke3 a4 b4 e4 Kd4 g3 h4 e3 b6 a3 b7 e2 b5 e1R h5 g2 h6 a2 h7 Na6 b8Q Ra7 Nf3 g1N Rh5 Bd6 f8B Re2 f7 Nh3 f6 Rf2 Ne5 Nc7 Qg1 Nf4 Ng4 Be5+ Kc5 d4 Nd2 d3 Kc6 Nfe6 Ne4 d2 Nh6 d1N Nc5 Nc3 b6 g4 Bg5 Nb1 Qa8 Ra3 Qa4 Rd3 Qb5 Ba6 Be7+ Kc8 f8N Rdf3 f7 Rd3 Bd8 Nf6 Ng6 Nfe8 f8Q Rg8 h8R Rg7 Na4 Rgf7 Qa3 Nc3 Rd1 a1R Rh7 Ra2 Ra1 Nb1 Nh8 Nd4+ Kc5 Bb7 Rg7 Bg2 Rh7 R7f3 Rd7 Nde6+ Kc6 Bf1 Nc5 Rf7 Bh4 Bg7 Rhd5 Be5 Bhg5
1R3b1K/1q4n1/1PN2B1Q/1nQ2rn1/p1RN2B1/2P1Pq2/nqQ2B2/1n1k2N1 b - - 0 1 legal: proof: d4 b5 f4 c5 g4 cxd4 a4 a5 axb5 g5 Kd2 e5 Ke1 f5 fxe5 f4 h3 Ra6 Bg2 Rf6 Bf1 Rf5 Nf3 Bb7 Ng1 Bf3 gxf5 g4 Qd3 g3 Qd1 Bg4 hxg4 Qh4 Ra2 Qe7 Ra1 Qd8 Kd2 Ke7 Kd3 d5 b4 h5 b6 a4 e3 h4 e6 Kd6 b7 Ke5 b5 f3 b6 g2 g5 f2 g6 h3 g7 h2 e7 Na6 b8B+ Nc7 e8Q+ Ne7 g8N Rh5 f6 Rf5 Be2 f1Q f7 Qf3 Nd2 Qd7 Nb3 Qb5+ Kd2 Ke4 Bb2 d3 Kc3 d2 Rc1 Bg7+ Nd4 Bf8 Ba1 Qb1 Qc6 Qa2 Qh6 Nb5+ Kb4 Qb3+ Kc5 Qb2 Qf1 d1N Bg3 Ndc3 Bf2 Nb1 Bd1 Nc8+ Ne7 Ncd6 Qc4 Ne8 Kc6 Ng7 Kd7 N1a3 Nec6 Nb1 Nge2 g1N Qc5 Ne8 Ke6 Nh3 Rg1 h1Q Rg8 Qhg2 Ng1 Ng5+ Kd7 Qfg3 Bg4 Q3f3 Qg6 Ng7 Qh6 Bd6 f8Q Qh1 Qa8 Bf8 Nb3 d4 Kd8 d3 Nbd4 Nh5 Ke8 d2 Rh8 d1N Qb7 Bg7 Ke7 Ndc3 Rb8 Na2 Qa8 Bf6+ Kf8 Ng7 Kg8 Be7 Kh8 Bf8 Ne6 Qb3 Bf6 Qb2 Ned4 Qhg2 c3 Kd3 Rf1 Kd2 Qb7 Qb3 Qbe7 Qf7 Qe6 Qb7 Qe4 N1a3 Rb1 Qh2 Rb3 Kd1 Rb4 Nb1 Rc4 Qg2 Bh4 Qge2 Bf2 Qb2 Qc2+
1n1K4/NQ1PR1r1/n7/1B3kq1/Nr1q1BPn/3P1QR1/1rN1p2B/2Q1r2r b - - 0 1 illegal: No possible last move, all moves rejected
4Qn1B/1nb2Pbb/1P2Q3/bNQRRP2/4R1p1/2r3Nb/k2B1n2/b2B2K1 b - - 0 1 legal: proof: g4 g5 c4 a5 f4 d5 cxd5 Kd7 e4 f5 a4 fxe4 h4 b5 axb5 e6 f5 Nc6 Be2 Kd6 Bf1 Bd7 f6 Qe8 Ra2 Qg6 Ra3 Qf5 gxf5 g4 Ra2 Re8 Ra1 Re7 Bg2 Rg7 Bf1 Rg5 hxg5 Bg7 Na3 Bh6 Nb1 Bf8 Kf2 Kc5 d4+ Kb4 b3 h5 g6 e3+ Kg2 h4 g7 a4 d6 a3 b6 h3+ Kh2 e5 b7 e4 b8B e2 d5 e1B Ba7 e3 Bd3 a2 Bf1 e2 Bce3 Nge7 g8Q Nd8 Qc1 c5 Nc3 c4 Bd2 Be6 d7 Nb7 d8R Bg7 d6 Ng6 d7 Nf8 Nb5+ c3 Bd4 Bf2 Qf7 e1B Ne2 Bg3+ Kg1 Bc7 Ng3 Bd5 Qe8 Bg8 f7 Bh7 Qe6 Rg8 Rb1 a1B Be2 Rh8 Bd1 h2+ Kg2 Rg8 Rf1 h1B+ Kg1 Be4 Rf4 Bg2 Re4 Bh3 Re8 Rh8 d8Q Rg8 Re7 Rh8 Qe8 Rg8 B2e3 c2 Rd7 Bec3 Bd2 Rh8 Rd5 Rg8 Qb2 c1N Qc2 Nd3 Rb2 Nf2 Qc1 Rh8 Rc2 Ka5 b4+ Ka4 Bf6 Kb3 Bd4 Bcb2 Rcc5+ Ka2 Bf6 Bc3 Bd4 Bh6 Be5 Rg8 Bh8 Bcg7 Qc3 Bhf4 Qd4 Ba5 Qc3 Bfc7 Rde5+ Kb1 Rcd5 Ka2 Qc5 Nd7 Q8e7 Rc8 Qe8 Nf8 Nd4 Rd8 b5 Rd6 b6 Rc6 Qb5 Rc2 Qc5 Rc3 Nb5
1R1RKb1n/B1b1b3/nRBPQ2P/8/2b1B1Q1/2p1Q3/2b1N2P/1q1bkq1N b - - 0 1 legal: proof: c4 h5 a4 b5 axb5 a5 f4 e5 g4 exf4 gxh5 d5 d3 g5 Bh3 c5 Bg2 Rh6 Bf1 Rd6 Nc3 d4 Nb1 Rd5 cxd5 c4 Nh3 c3 Ng1 Ra6 Qc2 Rc6 Qd1 Rc4 dxc4 Ke7 Qa4 Kd7 Qd1 Ke8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 f5 c5 g4 c6 g3 c7 g2 h6 f3 b6 f4 b7 f2 d6 d3 Qg4 a4 Ne2 g1B Bg2 f1Q Nd2 Be6 c8Q Bc4 Qce6 Na6 b8Q+ Bb6 Qa7 Ne7 Kf6 f3 Kf7 a3 e5 a2 Ne4 f2 N4g3 d2 Be4 d1B Be3 Bc7 b3 Ka3 b4 Kb3 b5 Qb8 b6 Ng6 b7 Bc2 Re1 a1B Rb1+ Bb2 Rg1 Bd1 Nh1 Bc2 Qd4 Bd1 Qd2 Bc2 Ba7 Nh8+ Kf6 Bd1 Qe3 Bc2 Qh4 Bd1 Rg8 Bc2 Qhg4 Bd1 Bg2 Kc2 Bc6 Bc1 Be4+ Bd3 Rb6 Bd2 Qc8 Bc1 e6 Bd2 e7 Be1 Qef3 Kd2 e8B B3c2 Qge6 Qh3 Bd7 f1B Bdc6 Bf2 Qd3+ Ke1 Qe3 Qg2 Qg4 Bh4+ Ke6 Bhe7 Kd7 Bg7 Rd8 Bgf8 Ke8 Qh3 Nc1+ Bfe2 Qce6 Qf1 Qef3 Bc4 Ne2 Qc8 b8R Qb7 Rb2 Qb3 Qe3 Qa2 R2b3 Qb1 R3b6
2Q5/1K1RPBQb/2N3r1/p2Rq1qP/5Q1r/2B3NP/2qq2k1/bR1r1B1r b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 d5 axb5 h5 gxh5 d3 Be2 e5 Bf1 d4 f3 Ne7 f4 Nd5 exd5 e4 Kd2 Nc6 Ke1 Ne5 fxe5 Ke7 Bg5+ Kd7 Bc1 Ke8 Kd2 Ke7 b4 f5 c4 g5 h3 a5 b6 f4 b7 g4 b8Q g3 d6+ Ke6 b5 Kf5 e6 f3 d7 g2 e7 f2 b6 Ra6 c5 Rh7 c6 Qe8 d8R Rg7 b7 Rg4 c7 Kf4 Ne2+ Kf3 Rd5 g1Q Nbc3 Qd7 Nb5 Bg7 Rb1 Rag6 Bb2 Rh4 Bc3 Qg3 Na7 Qg5+ Nf4+ Kg3 Nc6 Qd6 Qa8 Qde5 b8Q Bf5 c8B Bf6 Be6 e3+ Kc1 d2+ Kb2 e2 Ka3 e1R Ka4 d3 Kb5 Bh8 Qa4 d1R Kb6 d2 Bf7 Be4 Qg8 Bf6 Bd3 f1Q Qg7 Qg2 Qc8 Kf3 Rh2 Rh1 Bf1 Qf2+ Kb7 Qc5 Bd4 Qc2 Ne2 Bd3 Ng3 Bf5 Ba6 Be4 Re2 Bd3 Re1 Kg2 Bc3 Rc1 Qcf8 d1Q Rdb5 Qef4 Bb4 Rh6 Qc8 Ba1 Bc3 Qfe5 Qf4 Bh7 Rc5 Qdd4 Rd1 Rg6 Rd3 Qde3 Rd7 Qed2 Rcd5 Rcd1 Bf1+
n4BQR/2q3b1/1bR2RNN/2N1r3/3P3P/1KQb1rk1/P1pQp3/3rBn2 b - - 0 1 illegal: No possible last move
1QB1b3/B2R1BkN/3bQr2/1K1P1P1N/p6p/1P1r2N1/5RRn/rnqb4 b - - 0 1 legal: proof: e4 b5 h4 f5 exf5 c5 c3 d5 b3 c4 bxc4 g5 cxd5 gxh4 Na3 b4 Nb1 b3 axb3 Bd7 Rh2 Be6 Rh1 Bc8 Ke2 Kf7 Kd3 h5 Kc4 a5 f4 e5 g4 a4 d4 e4 f6 h3 d6 h4 g5 e3 f5 e2 d7 e1R Nd2 h2 Ne4 Ne7 g6+ Kg8 g7 Bb7 f7+ Kh7 g8R Bc6 Ng3 Ra6 Qe2 Bb7 Nh3 Bg2 Qe6 Rc6+ Kb5 Rd6 c4 Qc7 d8Q Bf3 c5 Bd1 c6 Nd5 Bc4 Nd7 Rf1 h1B Qb8 Ne5 Nf4 Ng4 Be3 Nh2 Rf2 Rd7 Raa2 Bd6 Rd8 Kg7 f8N Rh6 Nh7 Rf6 Rac2 Qc8 c7 Bhf3 Rcd2 Bh5 Rg2 Be8 Rdf2 Rdf7+ Rd7 Nc3+ Kc6 Nb1 Kb5 Qd8 c8B Qc7 d5 Re7 Be2 Qc1 Ba7 Rf1 Bh5 Re1 Rf1 Re3 Bf7 Rd3 Qe2 Re4 Rff2 Rc4 Qe5 Rc2 Qe1 Ra2 Qe6 Ra1 Nfh5+
3br2N/Q1P1pn2/r3bnp1/3NQPrP/2B2BQ1/N4q1B/3K1kn1/R6R b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 c4 Kf7 h4 Kf6 f4 d5 b6 d3 b7 g6 a6 d4 h6 Nc6 b8Q Bg7 c5 Qd5 h5 Ne5 h7 Nf7 c6 Be6 a7 Qf3 Na3 Bh6 Qe2 d2+ Kd1 Bg7 Nh3 Bh6 Kc2 d1N Kd2 d3 Qg2 Ne3 Qg4 Ng2 Qc7 Rb8 a8B Rb6 Qa7 Ra6 Bb7 Bg5 Bc8 Bh4 Be2 Bf2 Bf1 Bb6 Bd7 Bd8 c7 Kg7 f6+ Kh6 f5 Nf4 Bb5 Ng2 Kc3+ d2+ Kc2 Ra5 Bbc4 Ra6 Nf4 d1R Bd2 Re1 Bc1 Re3 Kd2 Re4 Nd5 Re1 Qe4 Kg5 Qe2 Kg4 Qe4+ Nf4 Bh3+ Kg3 Qe5 Rg1 Qe2 Ne5 f7 Nf6 f8Q Nf7 Qg7 Re8 h8N Ng2 Qe4 Ne3 Qe5+ Kf2 Qh6 Rg4 Qhf4 Rg5 Qfe4 Rb6 Qg4 Ng2 Kc2 Ne4 Bf4 Nf6 Ne3 Rc6 Kd2 Ra6 Nd5+
K1QqQ3/2R5/1r1p4/PBN1Nn2/pR1r1P2/1qbPR1kn/5br1/1B1QB3 b - - 0 1 legal: proof: e4 c5 h4 g5 b4 gxh4 bxc5 f5 exf5 b6 Qg4 Bb7 Qe2 Bd5 Qd1 Bb3 axb3 Kf7 b4 Ke8 Bd3 a5 Bc4 a4 Bf1 Qc7 Ra2 Qa7 Ra1 Qa5 bxa5 Ra7 Bb2 Ra6 Bc1 Ra8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kd5 Kf4 c4 e5 g4 h5 g5 h3 c6 d6 c7 e4 c8Q b5 c5 h2 f6 h4 c6 h3 d3+ e3 f7 b4 g6 b3 c7 b2 f3 Kg3 g7 e2 Bd2 e1B Nc3 b1R Bg2 Nh6 g8B Nd7 Kc6 Bf2 Be1 Bg7 f8Q Nc5 Ba2 Ne4 Qfe8 Nf5 f4 Rb4 Rc1 Rab8 Rb1 Rg8 Nf3 Rd4 Ne5 Ng5 Rb4 Rb5 Rf1 h1Q Bb1 h2 Bd5 Qg1 Bc4 Rb8 Ba6 Nh3 Bb5 h1Q+ Ne4+ Kh4 Qcd8+ Qg5 c8R Rb6+ Kc7 Bf6 Nc5 Qd5 Rg1 Bh8 Rg3 Qb3 Re3 Qf6 Qdd7 Rg2 Qc6 Bg7 Qb7 Qe7+ Kb8 Qd8 Ka8 Bf6 Qb8 Bg7 Rc7 Bf6 Re4 Kg3 Qc8 Rd5 Nc6 Bc3 Ne5 Rd4 Re3+
2Q1nb2/2Bq1RPk/4Np2/QqbB3N/Rp2n1P1/b3BP2/2K5/1R1rNr2 b - - 0 1 legal: proof: e4 c5 h4 d5 exd5 a5 b4 g5 hxg5 b5 a4 cxb4 axb5 Ba6 bxa6 Bh6 Rh2 Bg7 Rh1 Bf8 d4 e5 Kd2 h5 c4 e4 g4 e3+ Kc2 f6 c5 Kf7 c6 Kg7 g6 a4 d6 h4 c7 e2 c8Q e1B d5 h3 d7 h2 a7 a3 d6 a2 f3 Rh5 Ne2 Na6 Na3 Nc5 Be3 Ne4 Rb1 a1B Ng3 Nh6 Qd5 Nf5 Bc4 Bb2 Qa5 Bf2 Bd5 Qe7 d8N Qd7 Rhc1 h1Q Ne6+ Kh8 g7+ Kh7 Rd1 Qf1 Re1 Rh1 Nh5 Rb8 a8R Qfb5 Red1 Rf1 Rd4 Qa7 d7 Nfd6 d8B Ne8 Bc7 Rb6 Rc4 Rd6 Rc6 Rd8 Rd6 Qab7 Rd7 Bc1 Rf7 Rd7 Nc4 Ba3 Nb2 Rd8 Nd3 Bg1 Bd2 Bgc5 Be3 Rd7 Ne1 Qa7 Ba2 Rd1 Bd5 Qab7 Qb6 Q7c6 Ra4 Qd7 Qa5
1Q2n1RR/2bkR1pP/K2N4/B1QP2N1/3qnr2/2bPp3/3q2B1/r3Q1Nn b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 f5 e4 Na6 exf5 Nb8 g4 hxg4 b3 a5 b6 a4 Ba6 a3 Be2 Bd7 Bf1 Ba4 bxa4 Qc8 Qe2 Qd7 Qd1 Qd8 Ke2 e5 Kd3 c5 Kc4 e4 Kb5 g3 f4 g2 h4 a2 d3 c4 f6 e3 f5 c3 b7 c2 h5 Qc8 a5 Kd7 f7 Ra7 h6 Na6 b8Q Nf6 Bd2 c1N Na3 Rg8 Qe1 Qd8 Nc4 Bb4 f8Q Ne8 f6 Ne2 f7 Ng3 Qc5 Bc3 Nd6 Qf6 f8R Rh8 Rg8 Qf2 Rc1 a1Q Rh4 Nb4 a6 Na2 h7 Nh1 Re4 Ra8 a7 Qe2 Ka6 Qb2 Nh3 g1B Bg2 Bh2 Ng1 Qb4 Rb1 Qd4 Rb6 Qd1 Rc6 Qc2 Rc8 Qc1 Nf7 Bc7 Nd6 Bb2 Bb4 Bc3 Ba5 Qd2 Qb2 Rb8 a8N Rb4 Qbb1 Ra4 Qb8 Rb4 Re5 Rb1 Re4 Ra1 Re6 Bb2 Re4 Nc3 Re5 Ne4 Re6 Bb6 Nc7 Bc3 Re5 Nhf2 Ne6 Bc7 Ng5 Nh1 Re6 N8f6 Rge8 Rf8 Re5 Rf7 Rh8 Ne8 Re6 Rf4 Re5 N8f6 Rcg8 Ne8 Re7+
R1N5/1k2P1QP/4BN1R/3q2Pb/b1rR1p2/2Q2BnK/2n1Qp2/1rqB2r1 b - - 0 1 legal: proof: g4 g5 a4 h5 d4 e5 Kd2 c5 dxc5 b5 axb5 Be7 gxh5 g4 f4 Bg5 fxg5 e4 Kc3 Rh6 Be3 Rh8 Bf2 e3 Kd3 exf2 Kc3 Na6 Kd2 Nb8 Ke3 f5 Kf4 d5 Kg3 Kd7 c4 Kc7 b4 a5 e4 d4 h4 d3 c6 d2 e5 a4 h6 a3 h5 a2 e6 Bd7 b6+ Kc8 e7 Qe8 c5 Qg6 c7 Qf6 b5 Qb2 h7 Nh6 Nc3 Qb3 Qe2 d1B Nh3 Kb7 Bg2+ Qd5 Bf3 Bc2 Ne4 Qd3 Rad1 a1R Nf4 R8a6 c8B+ Ka8 b7+ Ka7 c6 Ng8 h6 Qd5 c7 Rc6 Nd6 Rb6 Nh5 Ba4 Nf6 Na6 b8R Nb4 Rd4 Be8 Be6 Nc2 c8B f4+ Kh4 g3 Kh3 Rc6 Ra8+ Kb6 Ba6 g2 Nc8+ Kc7 Rh2 Rc4 b6+ Kc6 b7 g1Q b8Q Qc1 Qb3 Bh5 Qc3 Rb1 Bb5+ Kb7 Rh1 Rc6 Bc4 Rc7 Bb3 Rc4 Nd7 Nf6 Rh2 Nb4 Bd1 Ne4 Nf6 Ng3 Rh1 Rd8 h8Q Nc2 h7 Rd6 Bd7 Re6 Qg7 Re4 Be6 Re3 Qed3 Re1 Qdd2 Rg1 Qe2 Bhe8 Kg4 Bf7 Rh6 Bh5+ Kh3
2n1n3/p1Q5/1q1R1PbK/r3nqNB/2pR2b1/1B2N2P/1kNPr1QR/5Q2 b - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 fxe5 Bd6 cxd5 Bb4 g3 Bf8 b3 f4 Qc2 h6 Ba3 f3 Qd1 Be7 Bd6 Bh4 Be7 Bg5 Bf6 Be3 Bg5 Bf4 gxf4 hxg5 Kf2 Ke7 Kg3 c5 e4 f2 e6 Kd6 Kg4 g6 e5+ Kc7 h3 Kb6 d6 Qd7 b4 Bb7 f5 Rh6 f6 Ne7 Bc4 f1B Bb3 c4 Rh2 Rh5 Nf3 Bg2 Qf1 Nc8 Na3 Na6 Nc2 Qh7 d7 Nc7 d8R Ne8 e7 Be4 e6 Bh1 Rd4 Bg2 Kg3 g4 Kf4 g3 Ng5 Bgf3 Ra3 g2 Ra6+ Kc7 b6+ Kc6 b7+ Kb5 b8N g1N Nc6 Bg4 Ne5 Nf3 Rc6 Rb8 Rcd6 Rb6 Qg2 Ra6 Qf1 Ra1 Qg2 Re1 Qf1 Re2 Qg2 Bgf5 Ng4 Ne5 Nge3 Bg4 Qf1 Nc7 e8B+ Qd7 Bf7 Ne8 e7 Qe6 Ba2 Ka4 b5 Bd3 b6 Qf5+ Kg3 Be4 b7 Bd3 b8Q Be4 Na1 Ka3 Qc7 Kb2 Bb3 Bd3 Nac2 Be4 Nh7 g5 Qg2 Bgf3 Qf1 g4 Bg6 Rg5 Kh4 g3 Bh5 Bg4 Qg2 Rg6 Qf1 g2 Ng5 g1Q Qg2 Qa1 Qf1 Qa6 Qg2 Qb6 Qf1 Ng7 e8Q Bd3 Qb5 Ne8 Qbc6 Rg7 Qcg2 Rd7 Re6 Rd5 Rd6 Ra5 Ne4 Qd7 Kg5 Qe6 Kh6 Qd5 Nc5 Bg6 Ne6 Qe4 Ng5 Qd3 Qd8 Qf5 Qc7
1BK2QRR/r4N2/1N5R/1b2Pp1b/1p1BP3/qQ1n2r1/4kBPn/b2b3N b - - 0 1 legal: proof: f4 g5 fxg5 a5 b4 e5 bxa5 h6 gxh6 c6 d4 Ra7 dxe5 Ra6 e3 Ra8 Bb5 cxb5 Kf2 Ke7 Kg3 Ke6 Kg4 d5 a4 b4 h4 b5 h5 f6 a6 d4 h7 d3 h6 b3 a5 d2 a7 b4 a6 b2 Nf3 Qd6 Nc3 b1B Ne4 Qc6 Ng3 Qd5 Ng5+ Kd7 Kf5 Bd6 Nf7 Ba2 c3 Bf8 Qb3 d1B Rh3 Bc5 Nh1 Bd6 Bd2 Be2 Be1 Bf8 Bf2 Qa5 Rd1+ Kc6+ Rd7 Kb5 Ke6 Bb7 Rd8 Nc6 Kd7 f5 Rc8 Rb8 a8R Qa3 a7 Ba6 Rd8 Rb7+ Kc8 Bg7 Rb8 Bb1 a8Q Nf6 Rg8 Bbd3 Re8 Ne4 Nd8 Bf6 Qa7 Rb6+ Kd7 Na5 Qa8 Qa2 Nf7 Rg8 h8B Bd8 h7 Bd1 Rh6 Ng3 c4+ Kc5 Bg7 Qa3 Bf8+ Be7 h8B Bb5+ Kc7 B3e2 Bf6 Nf1 Bg5 Nb7 Bf4 Rg3 e4+ Re3 Bg5 Kd4 c5 Nh2 c6 Bc5 Bd6 Ra6 Reh8 Ra7 Rbg8 Bh5 Qf8 Bb6+ Kb8 Nc5 c7 Nd3 c8N Bc5 Qd5+ Kc3 Nb6 Kd2 Kc8 Ke2 Bb8 Rg3 Qb3 Bd4 Bge3 Ba1 Bd4
4kB1n/R2PP2Q/2p1P3/3NqnNR/1N1n1Q1n/1b4br/1Q1p3B/3rR2K b - - 0 1 legal: proof: c4 b5 a4 d5 cxd5 h5 axb5 e6 g4 Bd6 gxh5 Be7 d6 Bf8 d7+ Ke7 e4 Kd6 f4 Qe8 d4 Nh6 f5 Ng8 e5+ Kd5 Bg2+ Kc4 d5 Qe7 d6 Kc5 Bd5 exd5 Bg5 Qe8 Bc1 Qe6 fxe6 Rh6 Qd2 Rh7 Qd1 Rh8 Kf1 g5 Kg2 a5 d8R f5 h4 g4 h6 d4 h7 g3 b6 Kc6 b4 f4 e7 a4 b7 a3 h5 d3 h6 a2 Nc3 Bg7 Rh5 f3+ Kh1 f2 Nf3 f1N Re8 Kd7 Nd5 Ne3 Qa4+ Nc6 b8Q Nf5 Bf4 d2 Ng5 Ra6 b5 Ncd4 b6+ c6 Re1 a1Q b7 Qc3 Qb4 Ra1 Qb2 Bf6 Qa8 Rd1 Qa4 Nh4 Rf8 Ng6 Qc4 Bg7 Rf5 Bf6 b8N+ Ke8 Na6 Be6 Nab4 g2+ Kg1 Bd7 Bh2 Be6 Rf3 Bf7 Qf1 Qc5 Ra3 Qc3 Ra7 Qg3 Ne6 Bh4 Ng5 Qc3 Qf4 Bg3 Ne3 Bb3 e6 Nf6 Ned5 Ng4 Qb1 Ne3 Qb2 Rg8 h8B Nef5 Bg7 Nh8 h7 Qe3+ Qf2 Qe5 Bf8 Rg6 Qf4 Rh6 Nf3 Nf7 h8Q Rh7 Rg5 Rh3 Qh7 Nh8 Rh5 Qe2 Ng5 Qe5 Qe4 Bf4 Kf2 g1N Kg2 Ngf3 Kh1 Bg3 Qf4 N3h4 d7#
Kb2n3/1B1b1N1R/R2NP2q/P2q4/1Q2Pp1p/3k1N1Q/2rR3Q/Br1q1r2 b - - 0 1 legal: proof: c4 a5 f4 g5 d4 d5 cxd5 c5 b4 axb4 h4 e5 fxe5 c4 hxg5 Na6 Nh3 Nf6 Ng1 Nc5 dxc5 Ng8 Kd2 Ke7 Ke3 f5 Kd4 h5 e4 b5 g4 c3 a4 c2 c6 b3 Kc5 f4 c7 b4 Kb6 b2 g6 b3 g5 Bg4 Kb7 Qe8 c8Q Be6 g7 Kf7 d6 Kg6 d7 Ba3 d8R Ne7 g8N Nf5 Nc3 b1R Nh6 b2 Ba6 Qf8 Nf7 Qh6 Nf3 Ng7 Qd6 Ne8 Qb4 Bd7 Nb5 Rf8 Bd2 c1Q Nbd6 Qc4 Bc3 Rg8 e6 Qd5+ Qc6 Ra7+ Kb8 Rb7+ Ka8 Rc7 Bb7 Rf1 Bg7 b1Q Qc2 Qbd1 Qh2 Rc2 Ra2 Rh8 Ba1 Bb2 a5 Be5 Qh3 Kg7 g6 Kf6 g7 Rf8 g8Q h4 Qgg2 Rg8 Qgh2 Rgg2 Rc8 Rb2 Rc7 Rb1 Rb2 Rc2 Rg1 Qf8 Rc6 Qh6 Nc8 Bb8 Rg7 Rcf2 Ra6 Rc2 Ng1 Qhh5 Ncd6 Qh6 Nh8 Ke5 Rh7 Qc4 Nhf7+ Kd4 Nf3+ Kd3 Ra2 Qd5 Rb2 Rc8 Re2 Rc2 Rd2+
r3N3/q1qPkBK1/RB1Q4/3bPPN1/q1Rr4/2R5/pn1p1n2/B2NQ2n b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 e4 d5 c3 f5 Qc2 fxe4 Bh6 d4 Bc1 d3 Qa4 Bc5 Qd1 Bd4 cxd4 Qd5 Qa4 Qd7 Qd1 Qd8 Kd2 g5 Ke3 a5 f4 c5 b4 c4 h4 c3 d5 c2 d6 g4 b6 d2 f5 g3 Kf4 a4 d7+ Kf8 b7 e3 h6 g2 h5 a3 h7 e2 h6 e1N b5 Na6 b8Q Qf6 b6 Nc5 b7 Kf7 Bc4+ Kf8 Nc3 Qg6 Qd6+ Ne7 b8B Nb7 Bb2 c1Q Bc7 Nc5 Bf7 Ne4 Bb6 Nf2 Nh3 g1Q Ng5 Bb7 Rh3 Nh1 Rd3 Rg8 h8N Bd5 h7 Qh6 Rg3 Nd3+ Kg4 Rg6 Qe1 Ndf2+ Kf4 Qh5 Nd1 Qc7 Rc3 a2 Rac1 Qe2 Ba1 Qb5 R1c2 Qa4+ Rc4 Ne4 R2c3 Qd4 Kg4 Nef2+ Kh5 Rg7 Kh6 Qe3 Ba5 Qea7 Bb6 Rg8 Ne4 Rg7 Nf6 Rg4 Ne8 Rd4 Be6 Qcb7 Nf7 Qbc6 Ng5 Qcc7 Qc6 Ng6 h8R+ Ke7 Bf7 Nf4 Kg7 N4d3 Qd6+ Kd8 Rh3 Nb2 Ra3 Bg2 Rhc3 Bd5 Qg6 Ke7 Qc6 Qc2 Ra6 Qa4 Qd6+
5b2/K1B3b1/Q1pN4/br1QQ3/PP1N2n1/P3B1RB/Rp2Rrb1/k3q1b1 b - - 0 1 illegal: No possible last move
4Q3/R2n3b/2p2RQ1/Rnbrp2q/1b4Pb/PNkNBPn1/4Q3/B1KN4 b - - 0 1 illegal: No proof kernel
2Q5/5NKR/qnNR4/Rr1r1BNk/p1bQPq1P/B1P1n3/2p3Q1/q4q2 b - - 0 1 legal: proof: f4 b5 g4 e5 a4 h5 gxh5 d5 axb5 exf4 Nh3 c5 Ng1 d4 c3 c4 cxd4 c3 d5 c2 Ra5 Bb4 Ra1 Bc3 bxc3 Qf6 Ra2 Qe7 Ra1 Qd8 Kf2 a5 Kf3 g5 Ke4 f5+ Ke5 Kf7 e4 g4 d4 f3 b6 f4 b7 g3 h6 Kg6 h7 f2 d6 f3 d5 g2 d7 Ne7 d6 Qc7 d8R Rf8 h8N+ Kh5 Na3 Rf4 Qe2 Qd7 Nb5 Kh6 Na7 Qa4 d7 Nf5 Kf6 Kh5 Nf7 Qa3 Nh6 Ne3+ Kg7 Rf5 Nc6 Rd5 Nh3 g1Q+ Ng5 Rb5 Bh3 f1Q Qd2 f2 Bf5 Qd6 h3 Qf4 Ba3 Rd5 Ra2 Qa6 Rh2 f1Q Qg2 Qae2 Rh1 Ra6 Ra1 Rb6 Ra2 Rbb5 Ra1 Na6 b8Q Nb4 Ra2 Ba6 Qc8 Qc4 h4 Q1f3 Qe2 Rd1 Rg8 Rc5 d8Q a4 Rb2 Rd2 Qg2 Qa1 Rd1 Qff1 Rh8 Nbd5 Rb5 Nb6 Rh7 Re5 Rc5 Qb5 Qd5 Qa5 Qdd7 Bc4 Rb5 Qa8 Ra5 Rb5 Qd6 Qa6 Qf6 Rf2 Rd6 Rd2 Qe5 Rdd5 Qf6 Rdc5 Qd4 Rd5 Nhf7#
1K4Nn/2Qb1Rkb/3nB3/1PRN3r/q1QQ1B2/B4P2/n2qppP1/n6N b - - 0 1 legal: proof: d4 c5 dxc5 g6 f4 Bh6 h4 Bg5 h5 gxh5 fxg5 Qc7 Kf2 Qb6 Ke1 Qd8 a4 a5 Kd2 b5 axb5 f5 Nf3 f4 Ng1 f3 Rh3 f2 Rh1 Ra6 Ra3 Rf6 Ra1 Rf3 exf3 Kf7 Qe1 Kf8 Qd1 Ke8 Kc3 Kf8 Kd4 d5 Ke5 d4 b4 d3 c4 d2 c6 h4 c5 h5 b6 a4 b5 h3 g6 h2 c7 a3 c6 a2 b7 h4 Qe1 d1B Qe4 h3 Bc4 Bc2 Qd4 Kg7 Ne2 Na6 b8B Bd7 c8Q Nh6 c7 Nb4 Nbc3 e6 Kd6+ e5 Rb1 a1N Nd5 Na2 Ba3 Qg5 Bb3 Qd2 Ng3 Bcf5 Rhd1 h1N Rbc1 h2 Rc5 Bd3 Qd8 Bc2 c8Q Nf7+ Kc7 Rh5 Kb7 Nh8 Qdc7 Bf5 Rdc1 Bb1 Rc6 Bc2 Rf6 e4 Qcc4 e3 Bf4 e2 Kb8 Be4 Q8c7 Bf5 Nf1 Ng3 Rc2 Ne4 Ng3 Nd6 Nh1 Kg8 g7 Bh7 Re6 Kf7 g8N Kf8 Rf6+ Kg7 Ng3 h1Q Rc1 Qh4 Nh1 Qd3 Qc2 Nb7 Be3 Nc3 Qa7 Nd8 Nde7 Na2 Be6 Ng6 Nd5 Qa4 Bf4 Nf7 Qd4 Qd2 Qcd3 Nd6 Rc5 Nh8 Q3c3 Re5 Qcc4 Rh5 Rf7+
6n1/bb1pR1Pb/2rR1qN1/4NPBQ/1QNn4/b5B1/K1P1k1Rp/6qB b - - 0 1 illegal: No possible last move
1kB3rN/1p6/3RB2P/2P2Kbn/1Q1q2QB/2N1R2q/nnp1R2P/r2Qn3 b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 a5 g4 Nh6 gxh5 Ng8 b4 axb4 Bh3 c5 Bg2 d5 Bf1 Bd7 d3 Bb5 cxd5 c4 Bh6 c3 Bc1 Bc4 dxc4 Be7 Nf3 Bc5 Ng1 Bf8 Kf2 Kd7 Kf3 Kc8 Kf4 g5+ Kf5 c2 e4 b3 a4 b2 d6 f6 h6 g4 d7+ Kc7 c5 g3 e6 g2 e7 Na6 e8Q Ra7 e5 Qc8 e6 Bd6 d8R Kb8 a5 Kc7 Bc4 Kb8 Nf3 g1N Qg6 Bf4 Rd6 Nb4 a6 Qd7 Nh4 Bg5 Nc3 b1N Ra3 Nf3 Re1 Nbd2 Re2 Ne1 Bd5 Qg7 e7 Nc4 e8B Na2 Be6 Nb2 B8d7 Ra8 Bc8 Qd7 Rc6 Qd4 Rd6 Ra7 Qh5 Ra8 Qg4 Ra7 Kg6 f5 Be3 f4 Kf5 f3 Ng6 Nf6 Bf2 Rg8 Nh8 Nh5 Bh4 f2 Rb3 Nf4 Ra3 f1Q Rb3 Ra8 a7+ Kc7 Ra3 Qh3 Rb3 Rb8 a8Q Nh5 Qa7 Ra8 Qb6+ Kb8 Ra3 Nc1 Rb3 Ra1 Qb4 Na2 Ne4 Nf4 Rbe3 Nh5 Nc3
6qb/N1k3bp/1NQ1BRQb/1r6/nN6/2p1BP2/qQRP2qP/qB2K3 b - - 0 1 legal: proof: c4 b5 e4 bxc4 a4 d5 exd5 a5 Qe2 Ra7 Qf3 Rb7 Qd1 Rb5 axb5 Be6 Ra2 Bh3 Ra1 Bc8 f3 f5 Ra2 e5 Nh3 e4 Ng1 e3 Ra4 f4 Ke2 Bf5 Ra1 Nc6 Ke1 Ne5 Ke2 Be4 fxe4 f3+ Ke1 f2+ Ke2 Nf3 gxf3 Qh4 Qb3 Qe7 Qd1 Qd8 b4 Kd7 b6 g5 e5 c5 b5 a4 b7 c3 b8N+ Kc8 d6 g4 b6 c2 d7+ Kb7 e6 g3 e7 g2 e8B c4 Na3 c3 Bf7 Qf6 d8Q Qg5 Nc6 Nf6 Qe8 Qg8 Nb4 Ne4 Be6 Nc5 Nb5 a3 Na7 a2 Nh3 g1B Nf4 Bh6 Ba3 c1B Nfd5 Na4 Qg6 Bb2 Rc1 a1Q Rc2 Qa2 Bfh3 Kb8 b7 Bc1 Nb6 Kc7 Qe1 f1Q+ Kd1 Bg7 Bhf5 Qg2 Qh4 e2+ Ke1 Bh6 Qe4 Bd4 Rg1 Bf6 Nbc6 Bb2 Bc5 Ba3 Be3 Baf8 Nb4 B8g7 Qd5 Qf7 Be4 Rb8 Qb5 Qg8 Bd3 Qh3 Rg4 Bh8 Rf4 Bfg7 Rf6 Qg4 Rc1 Qg2 Bb1 Rd8 Qa6 Rd5 Rc2 Rf5 Qb5 Rd5 Qbe8 Rb5 Qc6+ Kd8 b8Q+ Ke7 Qba8 Qa3 Nac8+ Kd8 Bba2 Nc5 Qa7 Qb3 Qa3 Na4 Qb2 Qd5 Qa8 Kc7 Na7 Qh1+ Kf2 Qa1 Bb1 e1Q+ Kg2 Qg3+ Kf1 Qg2+ Ke1 Qda2 Qc6+
1N5Q/R5B1/b1N1b3/b1R1Qn1Q/1RPPBp1b/4k1Bq/pK2bnP1/1b6 b - - 0 1 illegal: No proof kernel
kbQ5/1nQ1RqN1/1rR5/pP1Pn1p1/4B1QB/2NPr2p/1K3nR1/N2b4 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 f4 Bb7 g5 Kd7 f6 Nh6 f5 Ng4 h4 Qe8 g6 Qf7 h5 Bc8 h6 Nxh6 gxf7 Ng4 Rh4 Nh2 Rh3 Ng4 Rh1 Nh2 b4 c5 d3 Kc7 Kd2 Kb7 Kc3 a5 b6 e5 b5 g5 Na3 h5 Bg2 h4 Bf4 e4 Qg4 e3 Re1 e2 Bg3 h3 Nc2 c4 Kb2 Na6 Na1 Bd6 f8Q Bb8 f7 Rh6 f6 Nc5 Bh4 Bf5 Rc1 e1N Be4 Nef3 Ne2 Ne5 Nc3 Bg6 Qg8 Bh5 f8N Ra7 f7 Ka8 Qh7 Re7 Rhg1 Nb7 Ne6 Rg6 f8Q Re8 Qg3 Nhg4 Qc7 Nf2 Rg2 Bd1 Ng7 Re7 Qg4 Rh6 Nb1 Rc6 Qfc8 c3+ Ka3 c2 Kb2 Be2 Re1 Bd1 Nc3 c1Q+ Ka2 Qf4 Kb2 Nd8 Re3 Qf7 b7+ Ka7 Rf3 Rb6 Rf6 Nf3 Rc6 Re5 Bg6 Re3 Be4 Ne5 Q7d7 Bd6 b8R+ Nb7 Qcc7 Bb3 Re8 Bd1 Qcc8 Bb8 Re7 Ka8 Qdc7
nQ2N3/Q1r3b1/6p1/rN1Npn2/qQ1B1P1p/BB3P1K/2RP1R2/1nbk4 b - - 0 1 legal: proof: g4 b5 f4 f5 gxf5 d5 c4 b4 cxd5 Qd6 a3 Be6 axb4 Bf7 b5 Bh5 h4 Bf3 exf3 Qh6 h5 Qxh5 Ra4 Qh3 Ra1 Qh2 b4 Kf7 f6 a5 d6 Ke6 f7 Kd5 b6 Kd4 d7 h5 d8B c5 b5 e5 b7 a4 b6 h4 Ba3 g6 Bc4 Nd7 Kf1 Ra5 b8N Nh6 b7 Nb6 Bb3 Kd3 Na6 c4 b8Q c3 Nc7 c2 Nc3 c1B Ra2 Na8 N3b5 Nf5 Ne8 Bg7 f8Q Rh7 Rc2 Qh3+ Kf2 Qg4 Qb4 Qh3 Ne2 Qg4 Bb2 a3 Qg1 a2 Bd4 a1N Be7 Qh3 Nec3 Qg4 Ra2 Nc2 Rh2 Na3 Nd5 Nb1 Rc2 Qh3 Qg3 Qg4 Kg2 Ke2 Bec5 Kd1 Bd6 Qg5 Kh3 Qe7 Rf2 Qa7 Qg5 Qa6 Qe7 Qc6 Qea7 Qc4 Qc3 Qa4 Qc4 Bf6 Ba3 Rc7 Qc3 Bg7 Qb4
3qRrB1/P1kn4/Pp1p1Q1R/1P1R2n1/1pbK3b/1rB2N2/B3Nn1Q/7N b - - 0 1 illegal: No proof kernel
1kb2q2/2r1p1P1/3Q1Bb1/RQrB3Q/p1n5/pb1R3P/3r3P/B2N1NNK b - - 0 1 legal: proof: f4 g5 a4 d5 d4 h5 e3 b5 Qd3 c5 Qe2 h4 Qd1 h3 gxh3 g4 dxc5 bxa4 Ra2 d4 Na3 d3 Ra1 Nc6 Nb1 Nd4 exd4 Bh6 Nd2 Nf6 Nb1 Bg5 fxg5 Ng8 Kf2 Kd7 Kg2 Kc7 b4 a5 c4 f5 b5 g3 g6 f4 d5 d2 c6 Qf8 b6+ Kb8 g7 Qd8 b7 Rh4 c7+ Ka7 b8B+ Kb7 c5 Bd7 c8N Ra7 c6+ Ka8 c7 Rg4 d6 Qf8 Bb2 Nf6 Nc3 Ne8 Bc4 Rg5 Qh5 d1B Nb6+ Kb7 Nbd5 Bb3 Nd1 Bc8 d7 Nd6 N5e3 Rc5 Bg8 Nc4 d8Q Ka8 Qd6 f3+ Kf1 f2 Kg2 Kb7 Bf6 Ka8 Nf1 a3 Rb1 a4 Bd5+ Rb7 Ba7 Ra5 Bad4 Rc5 Ba1 Ka7 Kf3 g2 Kg3 Bc2 Rb2 Bg6 Re2 Rb2 Re5 Rd2 Kf3 Be6 c8Q Bef7 Nfe3 f1B Qcf5 Be2+ Kg3 Bg4 Nf1 Bg8 Qb1 Bc8 Qb5 Bge6 Ne2 g1R+ Kf3 Rg4 Ng1 Rh4 Rg5 Rd3+ Kg2 Rd2+ Ne2 Rf4 Rg1 Rf5 Kh1 Rc7 R1g3 Re5 Ng1 Bg8 Bc6 Rc5 Rd3 Bge6 Bb7 Kb8 Bd5+ Nb6 Bc4 Rc6 Qb2 Bef7 Ra5 Rc5 Qb5 Bg8 Bd5 Bge6 Be4 Bb3 Bb7 Nc4 Bd5+
5qBr/Q1nk1N2/1KB5/n1p1RNrP/1b2BR1n/1p1PRp2/1Pq5/6QN b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 h5 a4 g5 g4 e5 fxe5 b4 gxh5 Bb7 d3 Bc6 Bf4 Bb5 axb5 gxf4 Kf2 f5 e4 a5 h4 c6 e6 a4 d6 f3 Ke3 a3 Kd4 f2 Kc5 b3 b6 f4 b7 a2 e7 Ra3 h6 Rh7 d7+ Kf7 e5 Ke6 h5 Qe8 d8R Ra5+ Kb6 c5 Rd4 Rf7 h7 Ra7 h8N Ra4 Nc3 Rg7 Nb5 Qf7 e8B Rg5 Ne2 Ra8 Ng3 Nh6 Rh3 Na6 b8Q Ke7 e6 Nf5 Nd6 Nc7 Bg2 f1N Be4 N1e3 B8c6 Bg7 Nh1 Nh4 Qg1 Qf8 Re1 a1Q Qa7 Qd1 Nhf7 Qc2 Ra4 Bc3 Nf5+ Kf6 e7 Ke6 e8B Bb4 Kb7 Nc4 Rhe3 Na5+ Kb6 f3 Bcd5+ Kf6 Bec6 Re8 N7h6 Rc8 Bg8 Re8 Nf7 Ke6 Ba8 Kd7 Bec6+ Kc8 Re5 Rd8 R1e3 Re8 Be4 Kd7 Bac6+ Kc8 Qh2 Ba3 Qg1 Qd6 Bh7 Rh8 Bd5 Qf8 Rf4 Bb4 Bg8 Ba3 N7h6 Bb4 Be4 Kd8 Nf7+ Kc8 Ba8 Kd7 Bac6+
BQnQk1K1/2BR4/Pq2n1p1/2r3r1/p7/RN4R1/Pp2N1QP/1q2B1nb b - - 0 1 legal: proof: c4 c5 g4 a5 e4 f5 exf5 h5 gxh5 e6 b4 a4 d4 d5 cxd5 cxd4 Bf4 Bc5 Bg5 Bb6 Bc1 Ba5 bxa5 Qh4 Qg4 Qf6 Qd1 Qd8 Kd2 b5 Kd3 b4 Kc4 g6 f4 d3 h6 e5 h7 e4 d6 d2 Kd5 e3 f6 e2 a6 e1Q d7+ Kf7 f5 b3 Ne2 b2 Rg1 Nc6 Qc2 d1N Bg2 Na5 Nd2 Qe8 d8B Qf1 Nb3 Ra7 Bd2 Nb7 Bc7 Kf8 f7 Qe3 Be1 Ke7 f8R Nf2 f6+ Kd7 f7 Nh3 Rd1 Nd8 Be4 Qef2 Rg3 Ng1 Ke5+ Ke7 Ba8 Ne6 Qc6 Bd7 Qg2 Bc6 Rb8 Bd5 f8Q+ Kd7 Qf5 Qb6 Qf6 Ne7 Rc8 Rd8 h8Q Rf8 Rb8 Nc8 Rdd3 Ke8 Rb7 Bf3 Rd7 Qbf2 Rb5 Qb6 Rbd5 Be4 Rdd3 Bb7 Na5 Bc6 Ra3 Rb7 Nb3 Rg8 Ba5 Qb1 Be1 Bd5 Qf4 Bc6 Kf6 Rb8 Qg7 Rh8 Qe5 Rh5 Qd6 Rg5 Qh8+ Nf8 Kg7 Bb7 Qh4 Ne6+ Kg8 Rc5 Qf6 Be4 Qgf2 Bh1 Qg2 Rg5 Bd8 Rb7 Qb8 Rc5 Bc7 Rg5 Bd6 Rc7 Bf4 Rc4 Bc7 Rcc5 Qd8+
2q3Qn/6PB/Q2Kp3/2pQP2N/1rqnbpk1/r2R1B2/1PN2B1r/RR6 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 g4 h5 Bg2 hxg4 Bf1 e6 Nh3 a6 Ng1 Bc5 Nc3 Be3 Nb1 Ba7 b6 Qd6 bxa7 Qd8 Kf2 Ke7 Kg3 f5 Kf4 c5 Ke5 f4 e4 g3 d4 a5 h4 a4 h5 g2 d6+ Kf7 g6+ Kg7 d7 Kh6 d5 Kg5 d6 a3 h6 a2 g7 Qb6 d8R Nf6 d7 Nd5 h7 Bb7 Qa4 Qa5 Kd6 Qd2 e5 Nc6 Bd3 Qa5 Be3 Kg4 Ne2 g1Q Na3 Rb8 a8B Qc1 Bf2 Qc4 Rhb1 Nd4 Ng3 Ne7 Nh5 Be4 Nc2 Ng6 Bc6 Qab5 Qa6 Qb7 Bd5 Qc8 Ba8 Re8 h8Q Rb4 Qg8 Nh8 Bd5 Bh1 Bh7 Be4 Ba8 Rf8 Re8 Rf6 d8Q Rh6 Qd7 Kf3 Rd8 Kg4 Ng3 Rh2 Nh5 Bf5 Qdc6 Be4 Qd5 Nf3 Rd1 Nd4 Rab1 a1R Rd3 Rh1 Rd7 Rh3 Ra7 Rh2 Qa2 Q4a6+ Qc6 Bd5 Qb3 Qb5 Ra5 Bg2 Qa6 Ra2 Bae4 Bf3 Qd5 Qc4 Raa3 Bh1 Rab3 Raa4 Ra3 Ra5 Bg2 Raa4 Raa1 Ra3 Bf1 Bf3 Bg2 Be4 Bf3+
4rq1k/Q3bP1q/pn2Rbp1/3r2Q1/2PB4/p3P1KR/1QN3B1/NNB2q2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 f4 a3 Ba6 a4 bxa4 Bd3 e5 Qe2 Nc6 Bd2 Nb4 Qf1 Nd5 Bc1 Ne3 Kd2 Bc4 Qe1 Be6 Bf1 Bf5 exf5 e4 Qd1 Nc4+ Ke2 e3 Kd3 e2 Kc3 Ne3 fxe3 Qb8 Kd2 Qd8 Ke1 Kf7 Kf2 d5 c4 f3 h4 d4 b4 g6 h6 d3 f6 d2 c6 Qd6 c7 Qe6 c8N Qc6 b5 Qd6 h7 Bh6 h5 Qa6 b6 Qb5 b7 Qc6 b8Q Qd7 Kg3 f2 Nb6 e1B Ne2 Bg5 h6 Ne7 Nd5 Rg8 h8B Rd8 h7 Nc8 Bg2 Nb6 Nb4 a3 Nc2 a6 Rh3 Qe8 Ned4 Qf8 Qh5 d1Q Nb3 Bc3 Qa7+ Qd7 Bg7 f1Q h8Q Qde7 Ra2 Re8 Rb2 Rad8 Nba1 Rd5 Rb5 Qd7 Rc5 Bb4 Rc6 Be7 Re6 Qb7 Qh4 Qd7 Qf4 Qc7 Qe5 Qb7 Qh5 Kg8 Qb2 Qd7 Bh6 Kh8 f7+ Bgf6 Qf5 Qd6+ Bf4+ Qh6 Be5 Qh7 Qh5 Bd8 Qh4 Qf8 Bd4 Be7 Qg5
1R1Nr3/bP2B2P/2bpQp2/1q3NB1/R1pB2Q1/bnR3N1/K1P5/3q2kn b - - 0 1 legal: proof: e4 e5 f4 b5 d4 g5 fxg5 b4 dxe5 b3 e6 Qe7 e5 Qd8 axb3 Bg7 b4 Kf8 b5 Bh6 e7+ Kg7 e6 Kg6 Nf3 Bg7 Ng1 Bf8 g4 h5 Ra5 d6 Be2 c6 Ra2 a5 Ra1 Ra7 Bf3 Kg7 g6 Rd7 exd7 Kf6 g5+ Ke6 Bg4+ hxg4 Kd2 Kd5 Kc3+ Ke4 Kb3 a4+ Ka2 c5 e8Q+ Qe7 d8B c4 b4 g3 h4 f6 h5 g2 g7 a3 g6 Rh6 b6 Rh7 h6 Qe6 b5 Nc6 b7 Na7 b8B Rh8 h7 Qe7 b6 Bd7 b7 Qe5 Nd2+ Ke3 Qe6 Kf2 Nf1 Nh6 g8R Ng4 g7 Qb5 Ng3 Bc6 Nf3 g1B Rh3 Kg2 Be3 Nf2 Bg5 Nh1 Ne5 Bd4 Be7 Kf2 Nf1 Kg1 Rc3 Be3 Nf7 Bc5 Nd8 Bb4 Kb1 a2+ Kc1 Bc5 Qde2 Bf2 Ng3 Bc5 Q2g4 Bb6 Rb1 a1Q Bc7 Bc5 Bb6 Bd4 Ra3 Bc5 Ra4 Qd4 Rb3 Qd1+ Kb2 Bf2 Ka2 Bd4 Re3 Bc5 Nf7 Ba3 Bed8 Be7 Bc5 Bf8 Bd4 Be7 Re8 Bf8 g8N Bh6 Ne7 Rg8 Nef5 Rf8 Re7 Re8 Bh4 Bf4 Rc3+ Be3 Bg5 Rf8 Nh4 Nc8 Ba7 Nb6 Re8 Nd7 Be7 Nc5 Rb8 Re8 Nhf5 Nb3 Nd8 Bf2 Bd4 Be3 Be5 Ba7 Bd4+
6r1/1p3PPB/P1p2qN1/2qk1Rp1/K3n1Q1/Q2B1b1R/1N2nqBb/1N1R4 b - - 0 1 legal: proof: d4 a5 h4 d5 b4 e5 bxa5 g5 dxe5 d4 hxg5 Bf5 c4 Bc8 g4 f6 g6 Ba3 g5 Be7 g7 Bf8 g6 Ra6 Be3 Rd6 Bg5 Rd5 cxd5 fxg5 Kd2 Kd7 Kc2 h5 Kb3 h4 f4 c6 a4 h3 e4 d3 a6 h2 d6 Ke6 a5 d2 a7 Rh7 a8Q Nf6 g8B+ Rf7 d7 Ba3 f5+ Ke7 g7 Bd6 e6 Bg3 e5 Ng4 Ne2 Na6 Nf4 Qb6+ Ka4 Nf2 d8R Nb4 Bg2 Qa6 Rd5 Rf6 Qg4 Rf8 Bh7 Qc4 a6 Rg8 f6+ Ke8 e7 Kf7 e8N Qc5 Ng6 Ne4 Qb8 Nd3 Qd6 Nf4 Ra3 Ne2 Rd1 Bf4 Rh3 Qf2 Qa3 h1Q Rc5 Qhg1 Rb5 Bf5 Nd6+ Ke6 Nc4 Bh2 Nb2 Qc5 f7 Kd5 e6 Qf2 e7 Bd7 e8B Qf6 Qf4 Bg4 Bd7 Bf3 Qg4 Qf5 Re1 Qf6 Bf5 d1Q+ Ka5 Qc1 Ka4 Qe3 Rd1+ Nd2 Bc2 Qf2 Bd3 Ne4 Rb4 N4g3 Rf4 Ne4 Rf5+
1r3Rn1/2BQ3P/2ppn2r/1NPp2R1/2kr2PR/1N2Q3/2K1b1r1/BQ1N1q2 b - - 0 1 legal: proof: a4 g5 d4 b5 axb5 h5 f3 h4 g3 g4 gxh4 Ba6 fxg4 Bc8 d5 e6 d6 c6 Bg2 Bh6 Bd5 exd5 Qd2 Be3 Qd3 Bb6 Qd1 Bc7 dxc7 Ba6 Bd2 Bb7 Bc1 Bc8 Kd2 Ke7 b4 Kd6 e4 a5 c4 a4 h5 a3 h4 a2 b6 Ke5 b7 Kd4 h6 Qf6 h7 Qg6 b5 Ra5 b6 Qh5 e5 Rb5 e6 Rb4 e7 Qh6+ Kc2+ Kc5 e8Q Qf8 h5 Qd6 h6 Nf6 Nc3 Qh2+ Nge2 Qg2 Rh4 Na6 b8B Qf1 b7 Ng8 Nd4 Rb6 Rb1 a1R Qe3 Ra4 Nb3+ Kb4 c5 Kc4 Bb2 f5 Ba1 d6 Rb2 f4 Qb1 f3 Nd1 Be6 c8Q f2 Qd7 Nc7 Ra2 Rab4 Ra8 Bf7 Ra7 Ne6 Bc7 Be8 b8N Bg6+ Kb2 Be4 Na6 Bf3 Kc2 Be2 Ra8 Ra4 Rf8 Rb8 Rf5 Qg1 Rg5 f1R Nb4 Rff8 Na2 Rf2 Nac3 Rg2 Nb5 Ra3 Nc1 Rd3 Nb3 Qf1 Qf3 Ne7 Qg3 Rd4 Qe3 Rhd8 h8R Ng8 h7 Rf8 Qe7 Rf6 Qf7 Rh6 Qd7 Nf6 Re8 Ng8 Rf8
1rr1n2N/2P1p3/1p2BQQ1/1P1R4/3RPBpn/1BN2q2/1KN3r1/1Qrk1b2 b - - 0 1 illegal: No possible last move
Nn2R3/P5B1/QP4k1/QP2p2R/3rBN1R/nKQ3n1/pnNp4/4nbq1 b - - 0 1 illegal: No possible last move
rB5q/1Q1k2b1/p3bq1P/1RpNP1Br/R2Nr2P/K2Qb1R1/6p1/2Q4B b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 h5 a4 b5 g4 e4 gxh5 Nd7 d4 Nh6 c4 bxc4 d6 Ne5 fxe5 Nf5 d5 Nd4 Qb3 Bf5 Qd1 Nb5 axb5 Bc8 Kd2 c5 Kc3 g5 b4 f5 Kb2 g4 h4 e3 h6 a6 b6 g3 b5 c3+ Ka3 c2 d7+ Ke7 b7 e2 b8Q e1R d6+ Ke6 b6 f4 b7 f3 Rh3 f2 Nc3 Rh7 Bg5 Qf6 d8R Ra7 d7 Re4 Bg2 f1Q Bh1 g2 Nf3 Rg7 Qc1 Ra8 Nd5 Rg8 Ra2 Qh8 Rg3 Bg7 Qa7 Rf8 b8B Rf5 Qb7 Qf2 Rg8 Qf1 d8Q Bd7 Bf6 Rh5 Bg5 Bc8 Rb2 Bd7 Rb5 Bc8 Qd2 c1B+ Qb2 Bf4 Qc1 Be3 Rf8 Qf2 Rf4 Bd7 Nf6 Bc8 Qd3 Bd7 Nd4+ Ke7 Qc6 Be6 Qb7+ Kd8 Rfg4 Qf1 Nd5+ Qf6 Rf4 Ke8 Rf2 Kd8 Rfb2 Ke8 R2b4 Kd8 Ra4 Ke8 Qb6 Kd7 Qb7+
1Kb2R2/5pb1/3N1Q1b/1p3P2/pN3kP1/P1B1qQNq/q3R1rQ/r1B1R3 b - - 0 1 legal: proof: d4 c5 b4 e5 dxe5 d6 bxc5 Bd7 c4 Nf6 c6 Bf5 c5 Nbd7 g3 Ng8 Bg2 Nb8 Bd5 Bc8 Bc4 d5 g4 dxc4 Bb2 h5 Nc3 h4 Bc1 Nd7 Nb1 Ndf6 Qd3 Nh5 Qd4 Qf6 Qd1 Qd8 h3 g5 gxh5 g4 Qd6 g3 Qd5 Nh6 Qd1 Ng4 hxg4 Qd5 Qc2 Qd3 Qd1 Qd8 f4 Ke7 e4 Ke6 Ke2 b5 Ke3 a5 f5+ Ke7 Kf4 c3 h6 c2 a3 h3 h7 a4 e6 Kf6 e7 h2 e8Q g2 c7 Rg8 h8B+ Rg7 c6 Bb4 Ra2 Ba6 c8Q Qa5 c7 Bf8 Qc6+ Bd6+ e5+ Ke7 Qdf3 Rg5 Ne2 g1Q Qb8 Bc8 Nbc3 Rh5 Ng3 Qe1 Rf1 h1Q Rb2 Ra7 Na2 Rh2 Nb4 Rg2 Qa6 Qf2 Re1 Qab6 Bg7 Bc5 e6 Kd6 e7 Qh3 Bc3 Bd4 e8R Bg7 Rf8 Rb7 Be3 c1B Rbe2 Bb2 Bc1 Bh6+ Ke4 Ra7 B3d2 Bbg7 Bc3 Kd7 Kd5 Qbe3 Qab6 Ra6 Qd4 Rd6+ Kc5 Rd5+ Kb6 Ke7 Ka7 Kd6 Rb2 Qfe2 Ka8 Qc4 Rbe2 Qa2 Qf6+ Qe6 Qg5 Qe3 Qh4 Rd4 Qb6+ Ke5 Kb8 Bd7 c8N Be6 Nd6 Bc8 Qa8 Kf4 Qbd8 Rd1 Qdf6 Qh1 Qh2 Qf1 B1b2 Ra1 Bc1 Qh1 Qg1 Qh5 Qh2 Qh3 Qf3+
2br4/Qp5N/p2r3k/KPR1bQ1R/1Nqr1Q2/Bq2NR1P/pP1Bb3/8 b - - 0 1 illegal: Other
1NNR2K1/1k3rQ1/3B4/Bp1r1pq1/bPP1B3/p5qP/r1N3R1/Q1rnQ3 b - - 0 1 legal: proof: f4 e5 fxe5 h5 d4 c5 g4 cxd4 gxh5 a5 b4 Qf6 a3 Qb6 b5 Bb4+ axb4 Na6 bxa6 Qd8 Kd2 d5 Kd3 Kd7 c4 Kc7 e4 f5 a7 b5 h3 g5 e6 g4 e5 g3 h6 g2 e7 a4 e8Q Ba6 e6 Qc8 h7 Kb6 e7 Qe6 Bf4 Qd7 Qe1 Qd8 Ra2 Rc8 a8Q Qd6 Qf7 Rc7 e8N Nh6 Nf3 g1Q Bg2 Bb7 Qg7 Rf7 Na3 Ng4 Ne5 Ne3 Nc2 Nd1 Be4 Qg5 Nc6 a3 Nb8 Rg8 h8B Bc6 Be3 Qdg3 Nd6 Rd8 Qa4 Rg8 Nc8+ Kb7 Qb3 Re8 Qb1 Rd8 Kd2 d3 Qba1 d4 Rh2 Rd5 Rg2 Be8 Rb2 Rd7 Bf4 Bh5 Rb1 Rf7 Rb3 Ne3 Bc7 Bg4 Ba5 Bd1 Kc1 d2+ Kb1 Bf3 Rd3 d1R+ Ka2 Rc1 Kb3 Bh5 Rd1 d3 Kc3 d2 Bd3 Re5 Kd4 Ree7 Kc5 Re5+ Kd6 Rd5+ Ke6 Be2 Be4 Bd3 Qae5 Ra1 Qb2 Ra2 Qa1 Be2 Qgb2 Bh5 Be5 Bg4 Bd6 Be2 Rb1 d1R Qg7 Rc1 Rb3 Bd1 Rd3 Rd7 Ne7 Rc7 Kf7 Rd7 Kg8 Rc7 Nd4 Ba4 Nc2 Nd1 Nc8 Rf7 Rf3 Qh5 Rf4 Qhg6 Rh4 Q6g5 Rh8 Q5e3 Kh7 Qef4 Rd8 Qfg5 Kg8
K2B3b/Q2p1R1P/N2pPbRp/b3nR2/QNB2Pk1/7N/q1n5/3b2nB b - - 0 1 illegal: No proof kernel
B1NBq3/kp2p1N1/3R1Pn1/KQ3rq1/2r2R2/R2Nq2P/p1Q1n2P/1q3Q2 b - - 0 1 illegal: No proof kernel
2N4b/2K3Q1/1QP2P2/2nppq2/Pq1pBkBR/1pN5/3R1B2/Rr1rn2N b - - 0 1 legal: proof: g4 a5 d4 c5 f4 cxd4 e4 g5 fxg5 f5 exf5 b6 b4 Kf7 bxa5 Bb7 g6+ Ke8 h3 Bf3 g5 Bg4 hxg4 Qc8 Bg2 Qc7 Bf1 Qd8 Kd2 h5 Kd3 e5 Kc4 Ke7 Kb5 Kd6 c4 h4 a4 h3 f6 h2 c5+ Kd5 a6 Ke4 a7 d6 g7 Qe7 g6 Nd7 Kc6 b5 g5 b4 Qb3 Rh4 Nc3+ Kf5 Kc7 Rh8 Be3 Qe8 Bf2 Rh7 Bh3+ Kf4 Bg4 Ne7 g8N Rb8 a8B Nc6 g7 Qg6 Ne7 Qf5 g8R Bg7 g6 Bh8 g7 Rh3 Qe6 Rd3 Nc8 Rd1 Bb7 b3 Ba8 Nb4 Be4 d5 Qb6 Nc2 c6 Nc5 Nge2+ Kg5 Nc1 Ne1 N1e2 Ra8 Ng3 Kf4 Rd8 Rb8 g8Q Rb1 Rg1 h1Q Rg2 Qhh7+ Rd7 Qe7 Nh1 Ra8 Qg7 Rd1 Nd6 Rg8 Nc8 Qf8 Qh6+ Rg5 Rh7 Rb1 Qg7 Rh5 Kb8 Rh3 Rh5 Rd3 Kc7 Rdd1 Rh4 Ncd3 Bg1 Qb4 Rd2 Nc5 Bf2
2N2qN1/B4p2/Q1b2N2/KR2pR1n/1P2QPq1/B3BP1b/2p1k2p/2Qn1r2 b - - 0 1 legal: proof: f4 b5 a4 d5 axb5 g6 c3 a5 c4 Ra6 cxd5 Re6 Nc3 Re3 Nb1 Rf3 exf3 Be6 Ra2 Bd7 Ra1 Bc8 h4 Kd7 h5 Nh6 Be2 Ng8 h6 Na6 g4 Nb8 g5 Bg7 Bd3 Nf6 Bf5+ Ke8 Bg4 Rf8 Bh5 gxh5 g6 Ba6 hxg7 Nbd7 g8N Bc8 g7 Nb8 Nh6 Rh8 Ng8 Bd7 Na3 Bh3 Nb1 Bc8 b4 Kd7 d4 Kd6 Kd2 e5 Kc3 c5 b6 h4 b7 h5 Na3 h3 Kc4 a4 Kb5 h4 Ne2 h2 Ng3 h3 Nh5 Ng4 Nhf6 Qf8 Ka5 c4 Rg1 Ne3 Rg5 h1B Rf5 c3 Nc4+ Kc7 d6+ Kc6 d7 c2 d8B a3 Qd2 a2 Bb6 Bg2 Ba3 Nd1 Nd6 Nd7 b8B Bb7 Qc1 h2 Nc8 Bh3 B8a7 Rh5 Nh6 Rg5 g8Q Rg1 Qg6 Rf1 Nhg8 Ba8 Nh7+ Kd5 Nhf6+ Kc4 d5 Kd3 d6 Ke2 Be3 Bc6 Qh7 Nc5 d7 Ne4 d8Q Ng3 Qb6 Nh5 Qa6+ Bb5 Rb1 a1Q Rb3 Qb1 Rd3 Bc6 Qg6 Qb3 Rd5+ Qd3 Rb5 Qd7 Rg5 Qe6 Qe4 Qg4 Rf5
1kN2q1B/1pn2Rp1/2PQ1RP1/r2B1P2/2ppN1BK/1r3b1Q/1RqNb3/8 b - - 0 1 illegal: No proof kernel
NrQQ4/7P/pqB2N2/4q2q/6Bp/KP2RpbP/p4Nr1/1r2BkRQ b - - 0 1 illegal: No possible last move
Qn2bN2/K2QpP1R/Q1NNnbp1/7B/1B5B/b5Rp/k4PpP/5b1n b - - 0 1 legal: proof: e4 a5 b4 b5 c4 c5 cxb5 h5 d4 f5 g4 fxg4 a4 c4 b6 Kf7 b7 Qc7 b5 Qc5 dxc5 Ra6 Nd2 Rf6 Nb1 Rf5 exf5 Rh6 Qd3 Rd6 Qc2 Rd2 Qd1 Rb2 b6 Rb5 axb5 a4 Bf4 Ke8 Be3 Kf7 Bc1 Ke8 Kd2 Kf7 Kc3 d5 Kd4 c3 f6 Ke6 f7 h4 c6 c2 Kc5 d4 c7 a3 Nd2 h3 Ngf3 a2 Rg1 g3 Ng5+ Ke5 Be2 d3 Bh5 g6 Ne6 Nh6 Ba3 c1B Nc4+ Ke4 Bb4 d2 Nd6+ Kd3 Rb1 Bd7 c8Q Bg7 Nf8 a1N Qa4 d1B Qa6 Be8 Qd7 Nc6 b8B Kc2 b7 Ba3 Kb6 Nf5 Rc1+ Kb2 Rc4 Bc2 Rh4 Bd3 Bc7 Ka2 b8Q Nc2 Qba8 Nb8 Ka7 Ba1 b6 Bf6 b7 Bc4 Bf3 Be2 Rh7 Ncd4 Bh5 Ne6 Qd8 Nd7 b8N Bf1 Nc6 Nb8 Qd7 Bb5 Rc1 g2 Rc3 Ng3 Re3 Nh1 Rg3 Nd8 Bb6 Bd3 Be3 Bf1 Bg5 Ne6 Bh4
q1n1q3/Q1r1PkNP/1B3p1P/2R3p1/3b4/2QR2pK/p1p1nNRB/QB6 b - - 0 1 illegal: No proof kernel
n1R4K/2QQQr2/2B4p/1r2pNp1/1Pn2B1P/R2PN2p/p1b3rR/3k2B1 b - - 0 1 illegal: Other
R2N1r2/1Bq5/B1bq3N/1RP1Q1b1/R5Pk/b1Bqrb1P/1Qn1QK1b/1n6 b - - 0 1 illegal: No proof kernel
n3K2Q/N1RN2qQ/4R1Pb/Q1q2B1N/2n1br2/4Pn1n/R1Pnq3/B1r1k3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 b4 Kg3 e3 Kf2 g4 f5 g6 h5 g5 a5 g7 h4 g6 d3 b6 a4 b7 h3 b5 d2 e6 f4 b6 a3 e7 h2 Kd6 f3 Bb2 a2 Be2 Nh6 g8Q Na6 b8R Ng4 b7 Nc7 Qe6 Ne5 Qb3 Bh6 e8N Qg5 Qe6 Rf8 Bc1 Rf4 Bf1 Ra5 Na3 Na8 Nf6 Ra6+ Ke7 d5 Qf7 d4 Ke8 d3 Qd5 Bf5 Rc8 Be4 b8Q Rd6 Rb1 a1Q Ne2 Qd4 Rg1 h1N Bh3 Qa7 Qg8 Qg7 Nb5 Ra6 Qh7 Ra1 Bb2 Qh5 Qc1 d1Q Na7 d2 Rg4 Ke1 Rc7 f2 Ng3 f1N Nd7 Nf2 Qc8 Qf5 Nh5 Nf3 Bd4 Qg5 Qa3 Qc5 Rb6 Rc1 Ba1 Qe2 Re6 d1N Qa5+ N1d2 Rh4 Nb2 Bf5 Nc4 Qd8 Bc6 Qf6 Bd5 Qf8 Nh3 Qfh8 Rd4 Rhe4 Bc6 R4e5 Rf4 Rd5 Bb7 Rd3 Bc6 Ra3 Be4 Ra2
rrN1N1rQ/bRB3q1/KP6/PPqBr2k/r4Bq1/R4n2/N4Q2/n4bQ1 b - - 0 1 illegal: No proof kernel
b6Q/b1kPrn2/3N1BK1/QR2N3/3qnbBB/Q6P/2RqnPr1/1Nnn4 b - - 0 1 illegal: No possible last move
r1NN2q1/R1QP2r1/1q4bQ/r5nB/1Pq1RBP1/2b4k/2N1Bn2/rr2Q1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 g4 c5 e4 h5 d4 f5 b4 a5 e5 f3 e6 c4 g6 Kf6 d6 h4 e7 f4 e8N+ Kg5 d7 h3 d5 Kh4 d6 a4 g7 h2 b6 c3 b7 a3 Qd2 c2 Qe1 a2 Qd2 Nh6 g8B Bg7 Bgc4 Ra5 Nf6 Nc6 b8Q Qb6+ Qe3 Nf7 d8Q Ng5 Qa7 Ne5 Nh3 Bf5 d7 Bg6 Qe7 Ra8 Bfe2 Nd3+ Kf1 f2 Ng8 Be5 Na3 Bc3 Qd2 Kg3 Qc7 Kh4 Rg1 h1Q Bf7 Qd5 Qf8 Qb3 Ne7 Qc4 Kg2 f1R Qe1+ Nf2 Nc8 f3+ Kh2 Qce6 Bf4 c1R Nc2 Rb1 Be8 Qg8 Qg7 Bd3 Bh5 Bg6 Rg3 Nfe4 Qh6 f2 Kg2 Rh1 Re3 Rf1 Qd2 Rfe1 Kh2 f1Q Qd1 Nf2 Re4 Re5 Qc1 Re7 Qe3 Rg7 Qd2 Red1 Qc1 Rd5 Qe1 Nf7 Ng5 Rda5 Ne6 Ng5 Ba6 Qc4 Kg1 Kh3 Nd8 Qcf7 Bd3 Qc4 Be2 Rb2 Rd1 a1R Rd6 Rbb1 Rde6 Qb8 Ra6 Qb6 Ra7
3R4/1NP3kn/nQ3R1b/1P2R1q1/1nB2N2/N6q/Q2brbrP/QKbb2B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 a5 Kc2 e5 f4 g5 b4 d5 c5 a4 h6 a3 f6 d3+ Kd2 e4 b6 g4 h7 e3+ Kc3 g3 b5 d2 Kc2 e2 c6 e1B b7 d4 f5 a2 c7 d3+ Kb2 g2 Ne2 g1B Qa4 d1Q Nf4 d2 Be2 Bh6 Na3 Na6 b8Q Bgf2 Qb6 Qd3 Rb1 Qh3 Rf1 a1B+ Ka2 Bb2 Bc4+ Kf8 f7 Kg7 f8R Qdh5 Rd8 d1N Be3 Nf6 Ra1 Rg8 Kb1 Ra7 h8N Bec3 Nf7 Bd2 Nd6 Nh7 Nb7 Qg5 Re1 Bbc1 f6+ Kh8 f7 Bg4 f8Q Nb2 Qd1 Nd3 Qf7 Ndb4 Bc5 Re8 Re5 Bh5 Qa4 Bd1 Qfe6 Kg7 Qd5 Bg3 Bg1 Bf2 Qdd4 Re6 Ra2 Rg6 Qa1 Ra8 Rb2 Rc8 Qb3 Rb8 Qba2 Ra8 Rd4 Re8 Rd8 Ree6 Red5 Re2 Re5 Qgh5 Rb3 Rg2 Rbd3 Q5g4 R3d6 Qg5 Rf6
1QnQ2K1/bNN3R1/1nR1R3/qB1r1P2/1Q1q2P1/Br1k1P2/bq1b1b2/B6r b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 a5 g4 e5+ Ke4 h5 b4 c5 d4 c4 d6 h3 Kd5 a4 b6 a3 b5 h2 d7 a2 b7 e4 f3 c3 b6 c2 Be2 h4 Ba3 c1B Qa4 h3 Nc3 e3 Qb4 Ra5+ Nb5 Bd2 Rc1 Bc5 Nc7 a1Q Bb5 Qb2 Ne2 Rh7 Ng3 e2 Rhd1 h1Q Re1 h2 Rc3 Kg5 Ke6 Kf4 Ne4 Ne7 d5 Qg1 d6 h1R Rc4 Bf2 Rc6 Ke3 Nc5 R7h6+ Kf7 Re6 Rc1 e1B Rc4 Re4 Rd4 Rf4 Rd5 Rc4 Re5+ Kd4 Re6 Bde3 Kf6 B1d2 Kg7 Qga1 Kf7 Qh8 d8R Nd7 b8B Qe5 b7 Nb6 Nd7 Kd3 Rg8 Qed4 Rg7 Qe1 Ba7 Qea1 b8Q Ba6 Nd5 Nec8 Kg8 Qe1 Nc7 Bb7 Rc5 Bd5 Rc6 Qea1 Nf8 Qaa2 d7 Qaa1 d8Q Qaa2 Ba4 Rc3 Nd7 Rb3 Bb5+ Bc4 Ba6 Rd5 Nc5+ Kc2 Nb7 Kd3 Bb5 Qaa1 Qbd6 Qaa2 Bb4 Qa5 Bc3 Na8 Bc5 Nab6 Ba3 Rb4 Ba4 Ba2 Qc5 Rb3 Qb4 Qc4 Be5 Qcd4 Bb5+ Qc4 Qdf8 Qc2 Rcd6 Nd7 Nd8 Ba7 Rc6 Ndb6 Ba1 Qc1 Nb7 Qb2 Ba4 Qe4 Qd8 Qed4 Bb5+
1bQ2B1r/bN1RQk2/5n2/1qqPPK2/r3n2N/q1B4Q/2b1n1P1/1bRR3B b - - 0 1 illegal: Other
R4R1n/2bq1Br1/1n4bP/r4Pn1/1Q1k3P/qR4Nb/1NnB1N2/Q1K1Q2q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 f4 d5 b4 e5 h4 a5 c5 g5 h6 d3 c6 e4 b6 a4 c7 e3+ Kc3 e2 Kb2 e1N b7 g4 b5 a3+ Ka2 d2 b6 g3 Kb3 d4 Qe2 d1B+ Ka2 g2 Bd2 d3 Nh3 g1N Nc3 Nd7 Kb1 a2+ Kc1 Ngf3 b8Q Nc2 b7 Rh7 Nf2 Nb6 Na4 Bd6 Qa7 Qd7 b8Q Ng5 Rh3 Rg7 Nb2 Ne7 Qe1 Bh5 Bg2 Ng6 Bd5 Nh8 Bf7 Bg6 Re3 Ba6 c8N Bc7 Nd6 Bc8 Qa4 Ra5 Nde4+ Ke7 Ng3+ Kd6 f6 Kc5 Qa3+ Kd4 Qb7 Qd5 Qa8 Bh3 f5 Qh1 Qb4+ Nc4 Rb1 a1Q Re8 Qa4 Qa6 Qa3 Ra8 Qb3 Qa3 Nb6 Qa1 Qa3 Qb5 Bd8 Ba2 Bc7 f7 Qe7 f8R Qd6 Bf4 Qa3 Bf7 d2+ Kd1 Ne6 Qb4+ Kd5 Be3 Ke5 Na4+ Kd5 Rb2 Ke5 Rb3+ Kd5 Be8 Ng5 Nb2 Ke5 Ke2 Kd5 Bf7+ Ke5 Kd3 d1Q+ Kc3 Qg4 Kd2 Qd4+ Kc1 Qdd5 Be8 Qd7 Bd2+ Kd5 Qe7 Kd4 Bf7 Qdc6 Qd6+ Qcd5 Qe7 Qd7 Qb4+
1K2n2B/1bQ1N3/3Rn1P1/r1P3b1/bkBP1NN1/1qqrRn2/3R1Q2/r2bB3 b - - 0 1 illegal: No proof kernel
kb1B4/6Kn/1PRqq1bN/1QR5/1nQNnq1P/1P2r2N/1nb5/r3QB1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 g5 Kg4 c5 Kf5 Kc7+ Ke5 Kb7 e4 a5 h4 f5 d4 g4 h6 a4 d6 c4 b3 g3 d5 c3 b6 a3 h7 a2 d7 c2 d6 f3 Na3 f2 Qf3 f4 Be3 c1N Bd4 g2 Rh3 Nf6 Bb5 f1Q Qg4 f3 Nc2 f2 Rh1 Na6 Nh3 g1Q Rb1 Rg8 h8R a1N Rh6 Nh7 Qe6 Qe8 d8Q Nc5 d7 Rg3 Qde7 Qh2 d8N+ Kb8 Q6f7 Bf5 Rc6 Bg6 Ba6 Qd1 Bf1 Ra3 Qd5 Ka8 Nf7 Ra7 Nh6 N1d3+ Kd6 Ra2 e5 Nb2 e6 Rc3+ Be5 Qf4 Rc1 Bg7 Qg5 Qg8 Ke7 Rg3 Ba6 f1B Bc7 Bfd3 Bd8 Be5 Qd4 Bdf5 Bf1 Bb8 Qb4 Qd5 Nd4 Nc2 Qc3 Ra1 Qe1 Nf8 Kf6 Nb4 e7 Qdd6+ Qe6 Rd3 e8Q Rf3 Rc4 Bc2+ Qf5 Qd7 Qe1 Qdd6+ Q8e6 Re3 Rc3 Be8 Rc4 Qgg4 Rc3 Bg6 Kg7 Ne4 Qb5 Nh7 R3c5 Qgf5 Qd5 Qfe6 Qdc4
b2Q2nk/N1b2P1P/2r3N1/N1R5/2Qqn3/3P1B1b/qrB1n2n/R1qQ2BK b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 a4 c5 f4 e5 Kf2 g5 Kg2 Kg7 a5 b5 d6 e4 d7 g4 a6 g3 a7 b3 Nh3 b4 Na3 b2 Bd3 b1B Nc4 b3 Bc2 e3 Na5 Rh6 f6+ Kh8 f7 b2 f5 c4 f6 c3 Nf4 Bd6 f8Q e2 f7 Bc7 Qb4 Na6 Qc4 Rc6 h6 Rb8 a8B Nc5 h5 Ne4 h7 e1N+ Kg1 g2 d3 Ba2 Be3 b1Q Bc5 Qh4 d8N Bh3 Kh2 Rb2 Bg1 Bb3 Bb7 Qa2 Rc1 Rd6 Ndc6 Qd8 Na7 Rc6 Ra1 Qd4 Ba8 Re6 Bd5 Ba4 Rc1 Bc6 Ra1 Ba8 Rc1 Ng3 Bf3 Rc6 Ng6+ Kg7 Bf2 g1N Ra1 N1e2 Bg1 Ng2 Rc1 Ne3 Ra1 Bc8 Rc1 Nef1+ Kg2 Ne4 h6+ Kf6 Rh5 Nh2 Ra1 Be6 Kh1 Bh3 Bb1 c2 Rc5 c1Q Bc2 N4c3 Bd5 Ne4 h8Q+ Kg5 h7 Kh5 Qf6 Kh6 Qd8 Kg7 Be6 Ng5 Bg4 Ne4 Nf4 Kh8 Bh5 Qf6 Bf3 Qd4 Ng6+
Qq1N1KnB/P4bR1/Nq1Q1b1n/7R/1B1rr2P/q6r/B1N2nqP/Q6k b - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 a5 b4 axb4 g3 f5 exf5 h4 gxh4 Ra7 Ke2 Ra6 Ke1 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 g5 a4 c5 d4 b5 f4 e5 f6 g4 a5 b3 f7 g3 a6 g2 f5 b4 a7 c4 f6 c3 Na3 b2 Bb5 b1R Be2 b3 Bf1 c2 Qe2 b2 Qe1 Bg7 Nh3 g1Q Nf4 Nc6 f8B+ Nce7 f7 Bf6 Bc4 Nh6 Ne6 Qb6 Nc7 Be6 Ba2 Re8 Na6 Rh7 Be3 c1Q Nc2 Qb8 Bg7 Neg8 f8Q+ Re7 Qc8 Bf7 Bh8 Qg7 Rf1 Qg2+ Rf3 Rg7 Bd2 Rg3 Qg1 Qb6 Qa8 Rh3 Qf1 Qg1 Rg3 Qg2+ Ke3 e4 Kf4 e3 Rg7 e2 Qh1 Ng4 Kf5 e1N Bc3 Re4 Bb4+ Qc5 Qg1 Nd3 Qf1 Ndf2 Qd1 Be6+ Kg6 Bf7+ Kh7 N4h6 Qe1 Kd7 d6 Qb6 d5 Qce3 Qc3 Rd1 Rc1 b1Q Qa1 Rdd4 Rg1 Qh1 R1g5 Qa3 Rh5 Qb8 Ba5 Q1b6 Bb4 Kd8 d7 Qg2 Nc5 Ke7 d8N Kd6 Na6+ Qc5 Bd2 Qcb6 Be1 Qg5 Bb4+ Ke5 d6 Kf4 d7 Kf3 Nb7 Kg2 d8Q Nd1 Qd6 Kh1 Nd8 Qg2 Rg4 Be7 Kg7 Bg5 Kf8 Bf6 Be1 Nf2 Rg7 Qf1 Bb4 Qg1 Be1 Qg2 Bb4+
2r2B2/P2nq3/1Q2b1Nk/bbBP3P/4r1nq/K2R3Q/1Q1RB2q/1Rr1bN2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 c5 d4 g5 Kd2 Kg7 Kc2 b5 Kb3 e5 a4 e4 d6 g4 d5 g3 h6+ Kh7 f6 g2 f7 e3 a5 e2 a6 e1B d7 Qe7 d8Q Be6 f5 Nf6 h5 Ng4 f6 Nd7 a7 Rc8 Nf3 g1Q Be2 Qh2 Ba3 c4+ Kb2 b3 Bc5 b4 Nbd2 Bg7 Nf1 Re8 f8R Bh8 Ne5 c3+ Kc1 c2 Kb2 c1R Rb1 Qh4 Rh3 Bg7 Rd3 Qh2 Ka1 b2+ Ka2 b3+ Ka3 Qh4 f7 Qh2 Ng6 Bgc3 Rd2 Ba5 Rg8 Qeh4 Qb6 Re7 Ra1 b1B Qc2 b2 Qf5 Be4 Rb1 Bd3 Qf3 Bb5 Qh3 Bf5 Re8 Re4 Re6 Qe7 Rf6 Be6 Rf3 Qf2 Rfd3 Qfh4 Nf8+ Kh8 h7 Kg7 Ng6 Kh6 Ra1 b1Q h8Q+ Kg5 Qg7 Qc2 Qb2 Kh6 Rb1 Bc3 Bd6 Ba5 Bb4 Qc7 Bc5 Qh2 f8B+
1Qn1nq1k/PB4qN/b4nQ1/brP3P1/3QR2q/N5rb/5K2/N1BR1R1q b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 a4 Kf7 f4 Kg7 g4 e5 c4 d5 g6 h5 g5 b5 c6 b3 a5 b2 c7 b4 a6 e4 a7 h4 Nh3 d4 Nf2 h3 Qc2 d3 Qe2 d2+ Kd1 e3 Ra2 b3 Qg4 h2 Ke2 d1N Ra4 Na6 Bd2 Rb8 Ne4 Nf6 Bc1 Bb4 c5 Nf2 Na3 b1Q Bg2 b2 Rd1 h1Q Nd2 Rh3 Bb7 Rg3 Nb3 N2e4 Na1 Ba5 Qh4 Bd7 c8Q Nd6 Re4 Nc7 Qg4 Kg8 g7 Qf8 Qe8 Qh8 Qg6 Nce8 Kf1 e2+ Kf2 Nc8 Qh4 Nh5 f6 Bh3 f5 Qh7 Ba6 Rb5 Bb7 Qd3 Qf4 b1B Qe5 Qd7 Qd4 Nf4 Qh5 Qh6 f7+ Kh7 g8N Nd5 Nf6+ Kh8 Qg6 Bd3 Nh7+ Qhg7 f6 Qg4 Qc3 Qh4 Qd4 Qfg8 f8R Bc4 Rf7 Q8f8 Rd7 Bd3 f7 Ndf6 Rd5 Rb3 Rf1 Ba6 Qe5 Rb5 Rdd1 Bg2 Qd4 e1Q+ Kg1 Qc3 Kf2 Bh3 Qc4 Qe5 Qa4 Qd5 Qd4 Qfg8 f8Q Qc6 Qe7 Q8f8 Qed6 Qd5 Qb8 Qc6 Ree1 Qh1 Re4
1Nn2bn1/Q1B4b/K3R1P1/P1P1RBrb/3QBr1n/2b2q2/3Q1b2/N2Rbk2 b - - 0 1 illegal: No proof kernel
K1br1b1n/N6r/1k5r/3RRQ2/1q2b2P/B3NP1P/n2NB1r1/rQ2b1RQ b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g3 b5 axb5 f5 exf5 h4 gxh4 Rh6 Ne2 Rh7 Ng1 Rh8 Kd2 g5 Kd3 e5 Ke4 a5 Kd5 d3 c4 g4 b4 e4 h3 d2 f3 a4 c5 g3 c6 e3 f6 a3 c7 e2 b6 e1B b5 g2 b7 a2 b6 Qe7 Bb5 Nh6 Be2 Nc6 b8Q Nf7 b7 Qb4 Ba3 Rh7 Rh2 Nh8 f7+ Ke7 Qc1 d1B Nd2 d6 Rh1 Kd7 Rh2 Bg7 f8Q Bc2 Qd1 Ra6 Qf5+ Ke8 Rc1 a1R Rh1 Bd3 Rc5 Bf8 Qb1 Bc2 Qa7 Bd3 b8R Ke7 Rbb5 Rb6 Qg5+ Kd7 Qa4 Ra6 Qad1 Bc2 Bd3 Rb6 Ne2 g1R Nd4 Rg2 Rg1 Ra6 Bc4 Bg6 Nf5 Rb6 Ke4 d5+ Kd3 d4 Ke4 d3 Kd5 Bf2 Nb3 d2 Ne3 Qa4 Rf1 Bb7 c8N Kc7 Na7 Bc8 Be2 Bd3 Qdc1 d1R Qf5 Rd2 Rh1 Qf4 Qg1 Be1 Qh2 Kb7 Rg1 Qa4 Qh1 Nb4+ Ke5 Na2 Kd5 Qb4 Ra5 Rc2 Rab5 Rc4 Ra5 Rbh6 Nd2 Ng6 Rab5+ Ka6 Kc6 Rd4 Re5 Rd8 Qd7 Be4+ Rbd5+ Qb5+ Kc7 Nh8 Qf7 Qc4+ Kb8 Qb5+ Ka8 Kb6 Qh5 Qb4 Qf5
BB1R2B1/1N4r1/1Nb2n1q/1r1Q1n2/4rP1R/R1nP1kb1/1n1nP1r1/2QN3K b - - 0 1 illegal: Other
N4KQ1/B1Q4b/2b5/b2nR2R/nPP2NP1/2b1r1r1/R1b1rQ1q/1B3Brk b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 c4 e4 g4 a4 b3 a3 b6 h3 b7 h2 f6 Kg6 f7 e3 Qc2+ d3 Nh3 a2 Na3 e2 Qd2 e1R Ng1 Re3 Nh3 Qc7 Qe2 d2 Qf2 d1R+ Qd2 Bb4 f8Q Nf6+ Kd4 d5 Nb5 Na6 b8Q Ba5 b4 Bf5 Qfd8 Bd3 Qf2 Rhe8 Qe7 Rg3 Be3 Nc5 Qe5 Qd6 Nc7 Na4 Qe6 Ra7 Na8 Rae7 Qa7 Qb8 Qc7 Be4+ Ke5 d4 Kd6 d3 Bc5 d2 Ba7 Rc1 Qc8 d1B Qe6 Bdc2 f5+ Kg7 g6 Kh6 Qg8 Nd5 Nf4 Kg5 g7 Kh4 f6 Bh7 f7 Re2 f8R R8e3 Re8 Rce1 Rd1 a1B Re5 Bc3 Ra1 Rc1 Ra2 Rce1 Ng2+ Kh3 Ke6 Rb1 Kf7 Rd1 Qe8 Rde1 g8B Rb1 Kf8 Ra1 Rg1 h1B Be6 Kh2 Bf5 Rb1 Nf4+ Bg2 Qe1 Bf3 Rg2+ Kh1 Qf2 Qd8 Be4 Qh4 Qe6 Qh2 Qg8 Ndb6 Bf5 Bc6 Bd3 Nd5 Be4 Rgf3 Rg3 Rc1 Rh3 Rb1 Bd3 Rg3 Rhh5 Rd1 Bh3 Rdg1 Bf1 Bd1 Bb1 Bb3 Ra1 Bbc2 Ra2
rk5R/1b1n1QbN/RQ4r1/3n3K/Pnr5/1Bn1NP1P/Q2q1B1r/1NRr4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 c5 Kg4 Kc7 d4 g5 a4 b5 f3 e5 h6 b3 h7 c4 Bf4 b2 Qe1 b4 Be3 e4 Qf2 c3 Nh3 c2 Bc4 c1R Nf4 b3 Kh5 g4 f6 g3 f7 Ne7 Ng2 Nd7 d6+ Kb8 d5 Bg7 f8N Bb7 Qc2 Nc6 Bf2 Nb4 Ne3 g2 Re1 g1R h3 Rd1 Re2 Rg6 Qd2 Rg8 h8R Rg2 Re1 Rh2 Rg1 Qa5 Rg6 Qd8 Nc3 b1R Qa2 b2 Bb3 Rbc1 Nb1 Rc4 Rf6 Bh6 Re6 Rg6 Rf6 Bg7 Re6 Nc5 d7 Qa5 d6 Nd5 Rf6 Qd2 d8Q+ Bc8 Re6 Nd7 Qf6 Bb7 Ng2 e3 Qf7 e2 Ne3 e1N Rf6 N7b6 d7 Nc2 Rc6 Ncb4 d8Q+ Bc8 Qdf6 Nd7 Ra6 Bb7 Qb6 Qe2 Na3 Qd2 Rc1 b1N Qe8+ Rc8 Qf7 Nbc3 Nb1 Rc4 Nh7+
r2k2B1/n1BNNrr1/q1n1R1b1/2nK1QP1/r2Q4/5BPn/4PRn1/2b1RQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 f5 Kd3 d5 b4 a5 c4 h5 c5 a4 e6 h4 b6 f4 e7 f3 b5 f2 g3 a3 c6 h3 c7 a2 b7 h2 b6 Nf6 Ba3 Nc6 b8R Ne4 b7 Rg8 Qe1 Bf5 c8B Rg7 Qa5 Qb6 Nf3 Bg6 Bg2 f1R Ne5 Rff7 Rf1 h1N Rf2 Qa7 Bd6 Qa6+ Kc2 d3+ Kb3 d4 Bf3 d2 Nc3 d1N Nd7 d3 Qf5 d2 Bc7 Ne3 Nd5 Ng2 Re1 Nc5+ Kc3 Nd8 Kd4 d1N Ke5 a1R Kd4 Ra7 Ra8 Nc3 b8Q Ra3 Qb4 Ra4 Rb8 Ra8 Rb6 Nb5+ Ke5 Nb3 Qd4 Na7 Re6 Ndc6+ Kd6 Qa5 Ba6 Nc5 Bc4 Qb5 N5b6 Qa6 Kd5 Rg8 Nc8 Bg7 Rff1 Nf2 Ba2 Nh3 Rf2 Be5 Bb3 Bf4 Bc4 Rf6 Ba2 Bc1 Bb3 Kf7 e8Q+ Kg7 Re4 Nb5 Ne7 Nd6 Qb8 Kf7 Qbb4 Ke8 Ref1 Bb2 Qe1 Rg7 Ba2 Nc8 Qed1 Nb4+ Ke5 Bc1 Bg8 Nc6+ Kd5 Rff7 Re6 N8a7 Q1d2 Ng1 Rd1 Nh3 Qe1 Rb4 Qf1 Ra4 Bf4 Kd8 Re1 Na5 Bd6 N5c6 Bc7+
B2N4/1b1R1qnn/Nb3Qnr/r1P5/1B6/1bbK1B1Q/RQ1b1PP1/1nN4k b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 d5 b4 h5 f6 Ke6 g6 Ke5 b6 Ke4 f7 a5 g7 e5 b5 h4 b7 h3 b6 d3 Qh5 a4 Bb2 h2 Ra2 d4 Nf3 a3 Bc3 Qc7 Bb4 Rh6 Qh3 Nf6 g8B Bc5 f8Q Nc6 b8N Ne7 b7 Nh7 Be6 Bb6 c5 Ng6 Qg7 Ra5 Ra1 a2 Ba3 Qf7 Rg1 h1N Bb2 Ng3 Ba3 Nf5 Qf8 Ng7 Kc1 d2+ Kc2 d1N Bb5 Nc3 Bg4 d3+ Kd2 Na4 Bh5 Nc3 Ng5+ Kd4 Qh8 e4 Bc6 Kc4 Ke3 d2 Bb4 d1B Na6 Bb3 b8Q Bb7 Kd2 Kd4 Ne6+ Kc4 Bf3 e3+ Kc1 Kd3 Nd8 e2 Nd2 Nb1 Rd1 e1B Kb2 Bd5 Nb3+ Bd2 Qf4 Bc4 Qf6 Be6 Re1 Bc4 Re7 Be6 Rd7+ Bd5 Be4+ Ke2 Kc2 Kf1 Kd3 Kg1 Nc1 Bb3 Bf3 Na3 Rb1 a1B Rb2 Nb1 Ra2 Bac3 Bcd5 Bc8 Ba8 Bb7 Qhe6 Kh1 Qe2 Bf4 Qb2 Bfd2 Qe8 Na3 Qee6 Nb1 Qh3+
rr1R1Qr1/N3bB1R/nk1P2br/2n1b1B1/q4N1b/4Qb1P/PQ1K4/1B3N2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 Kd7 d4 f5 h3 b5 d6 Kc6 d5+ Kb6 e6 c5 e7 g5 e8N c4 h6 f4 h7 c3 e5 c2 e6 f3 d7 f2+ Kd2 b3 e7 b2 d6 b4 Be2 f1R Nc7 b3 e8B g4 Nf3 g3 Na6 g2 Qe1 g1B Nh2 Qh4 Bd3 Bb7 Bf7 Bf3 Nc5 Be7 Qe3 Na6 Na3 b1R Nb5 b2 Na7 Bf2 Rg1 Qa4 Rg7 Rg1 Nf1 Nf6 Bf5 Rhg8 h8Q Bh4 Rh7 R1g6 Bd3 Rh6 d8Q+ Nc7 Qg7 Nd7 Ne6+ Nc5 Qdf8 Na6 Nf4 Bd1 Nh5 Kb7 Qe6 Qa5+ Ke3 Qa4 Qh8 Bf3 Bd2 Rd1 Rb1 c1B Bf5 Nb3 Kd3 Nbc5+ Kc3 Re1 Bg5 Bf4 Qe3 Bfg3 Qhd4 Be5 Kd2 Rc1 Nf4 Rc4 Rd1 b1B Qa1 Bc2 Rb1+ Rb4 Rb3 Bce4 Qb2 Rb5 Bg4 Bg6 Bf5 Nd3 Rc3 Rb4 Rc8 Ndc5 Rd8 Rb5 Nc8 Kc6 Bb1 Rbb8 Qba3 Kb7 Na7 Kb6 Qb2+
q1R1QrB1/2P3RK/1bn5/1k2P2Q/rr1NQ2B/2P3Rn/5r2/rb2rNBq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 d5 Kf3 Kd7 Kg4 a5 Kf5 g5 h4 d4 e4 g4 b4 d3 b6 g3 h6 g2 b5 d2 h5 f6 Kg6 f5 c6+ Kd6 c3 Kc5 b7 a4 e5 f3 b6 a3 c7 a2 h7 f4 h6 f2 Qg4 d1Q Rh3 f3 Bg5 Nc6 b8R Nf6 b7 Ne4 Rg3 Ra4 Bh4 Ng5 Qe4 Nh3 Ne2 g1R Nd2 Kb5 Rc1 Bg4 Rc8 a1R b8B Bc5 Ba7 Rf8 h8Q Bb6 h7 Bf5+ Kh6 Qe1 Qg8 Rb4 h8Q Raa4 Qg5 Qd1 Qh5 Qe8 Bg2 f1R Rc2 Re1 Nf1 f2 Nd4+ Ka6 Bf3 Bh7 Bg4 Qf3 Kg7 Qh1 Be6 Bf5 Bg8 Qd8 Ne3 f1R Rcg2 Rf2 Nf1 Qd5 Qe8 Bg6 Qh5 Rea1 Qf4 Bb1 Qe4 Qd8 Kh7 Qd5 Nh2 Re1 Nf1 Qd8 Ra8 Qb8 Rg7 Qb7 Rc8 Qa8 R2g3 Ba5 Ne2 Kb5 Be3 Bb6 Bc5 Rh2 Bg1 Rhf2 Nd4+
Nn1QRnrB/4K1P1/5B2/R5n1/2brQb2/1RP1b1P1/r1BbQ3/q1kN1n2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 Kd3 h5 Ke4 d5+ Ke5 a5 b4 a4 f4 a3 b6 h4 f6 Kg6 f7 a2 b7 d3 g3 d4 b5 d2 b6 d3 Qf3 d1N Qe2 d2 Qh2 h3 Qg2 h2 Nf3 Nf6 Bb2 Rg8 Qe2 Nh7 Nc3 Ne3 Nd4 d1R Ndb5 Rd4 Nc7 Bh6 f8R Be6 Re8 Bc4 Nd1 Nf8 Bg2 Ra4 Na8 Nf1 Bc6 Ra3 Ba4 e6 Rb1 a1B Bc3 Qc8 Rb3 Ra2 Qe4+ Kh5 Kf6 Kg4 g6 e5 f5+ Bf4 Ke7 Bb2 f6 Bc1 f7 Be3 Rg1 h1N Bb2 Nf2 Bc3 Nbd7 b8Q Qa6 b7 Nh3 Qd8 Ng5 b8Q Qa7 Qbc7 Nb8 Rh1 Qa5 Rh5 Qa6 Qcb7 Qa5 Qd3 e4 Qc6 Kf3 Qd2 Rd5 Bh8 Rd4 g7 Qc3 Qe6 Qa1 Qb4 Ke2 c3 Kd2 Qe5 Nfh7 f8B Kc1 Qb7 Bd2 Qa6 e3 Qe4 e2 Qb5 e1B Qa6 Ne6 Ra5 Bf2 Qb5 Bf2e3 Qh5 Bb5 Qe2 Bd3 Rb4 Ba6 Bc2 Nhg5 Rb3 Bd3 Kf6 Bc4 Be7 Nh7+ Kf7 Nhf8 Bf6 Ng5+ Ke7
2K3b1/4qP2/2R2R1Q/1PBQ3r/rnr4R/1Pn2b1B/1bnN1r2/n1B1N1Qk b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 g4 e5+ Ke4 Kg5 f3 h5 d6 a5 Kd5 Kf4 d4+ Kg3 g5 c4 g6 e4 f4 a4 f6 e3 f7 h3 f5 c3 g7 a3 f6 a2 b3 h2 d7 e2 Ke6 e1N d5 c2 d6 h4 Bb2 c1R Ba3 h3 Nd2 Ra4 Qe2 Nc2 Qh5 Nc6 Qh6 Nge7 g8Q+ Bg7 f8B Nd5 Ngf3 N6b4 Ne1 Nc3 Rb1 a1N f7 Bb7 Bg2 Be4 Rf1 h1R Rf6 h2 Bh3 Qc7 d8R Bh7 d7 Rf1 Bc5 h1B Rc8 Kh2 d8Q Bf3 Qd5 Kh1 Bb2 Qa7 Rc6 Rf2 Ba3 Qc7 Rb2 Qe5+ Kd7 Qd6+ Kc8 Qe7 Qgd8 Bg8 Qb6 Rh7 Ra2 Rd1 Bc1 Bh8 Nc4 Rd4 Nd2 Rc4 Qg7 Rh5 Qh6 Ne3 Rc2 Nb1 Rc3 Nec2 Re3 Bg7 Re4 Nc3 Rh4 Ne4 Rfe6 Bb2 Rf6 Nc3 Qb8 Re2 Qg3 Rf2 Qg1+
2RB1n2/P1Qr4/b2N1nN1/2P2Pb1/n3Q1BQ/Bb1rR1q1/3br1kN/1K1n4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 Kf6 h4 Ke5 c4 Ke4 Kc2 g5 f4 e5 f6 b5 f7 d5 f5 b3+ Kb2 d4 h6 b4 h5 d3 h7 d2 c6 g4 c5 g3 c7 g2 h6 Qd3 a5 Ra7 a6 Nf6 Ra4 Qg3 Ra5 Nbd7 Ne2 Kf3 Nbc3 g1B Rh3 e4 Qc2 d1N+ Kb1 e3 Ba3 b2 Ne4 Be7 Nd6 Rd8 h8N Nf8 h7 Bf2 Qa4 Be1 Ng6 Bd2 h8Q Kf2 Nd4 e2 Bg2 e1R Qh4 Re2 Bf3 Rd7 Bh5 Kg2 Bg4 Ra8 a7 Ba6 c8Q Rb8 Qc7 Rbd8 Kc2 b1N Nf3 Nbc3 Rb5 Ne6 Rb8 Nf8 Qac6 Na4 Kb1 b3 Qe4 b2 Ra8 N6h7 Rb8 Beg5 Rc8 Nf6 Nh2+ Kf2 Ka2 b1B+ Ka1 Bbd3 Ka2 Bdc4+ Kb1 N8h7 f8B Bb3 Be7 Nf8 Nf7 Rd3 Nd6 Rd7 Bd8 Kg1 Qc4 Kg2 Qe6 Qf2 Re3 Qg3 Qe4+
NrB2q1R/1r1R4/n7/2r1b2N/qrn2QPR/2qQBb1K/3PPq2/3k1NQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 b4 Kd6 g4 c5 Kg2 f5 b6 h5 g6 a5 b5 f3+ Kh3 c4 b7 Kc5 d6 Kb4 b6 a4 g7 a3 d7 c3 Kg3 f4+ Kh2 h4 Qe1 Kb3 Kh3 Kc2 Bb2 f2 Bc1 f3 Kh2 a2 Bb2 h3 Bg2 f1R Qf2 Rh7 Qh4 f2 Qg3 Ne7 g8N Kd1 Nf3 c2 Nf6 c1Q Na3 Bg7 Nc4 Nec6 Nh5 Qf8 d8Q Ne5 Qd3 Na6 b8R Bb7 Bd4 Bc6 Rb1 a1Q b7 Qa4 Nb6 Nc4 Be3 Be5 Rb5 Qb2 Rd5 Qc3 Rd7 Rf7 Rc8 Rb8 Na8 Rg1 Qf4 f1Q Kg3 h2 Kh3 Qf2 Rcd8 Rc8 b8Q Bb7 Qa7 Rb8 Rd5 Rc7 R5d7 Rc5 Re8 Qd6 Rh8 Qf8 Ne1 Rf1 Nc2 Bd5 Be4 Bc6 Bf5 Bf3 Re7 Rb7 Bc8 Rb4 Rd7 Re1 Rg1 Rb8 Rg2 h1R+ Rh2 Kc1 Qb7 Bc7 Bd4 Rd1 Ne3 Be5 Qb3 Rdg1 Qd1+ Kb2 Qf1 Kb3 Qg2 Rb1 Qgg3 Kb2 Kh4 Kc1 Rh3 Rd1 Nf1 R1b7 Be3 Re1 Qd5 Kc2 Rh1 Reb1 Qd3+ Kd1 Rh2 Qe1 Qf2 R1b2 Kg3 R2b4 Rh4 Qcb3 Kh2 Qc3 Qg1 Qf2+ Kh3
2RR1n1q/1K6/7P/Nn4r1/1n1Q1rq1/B1NqPP2/1BBnq1Nk/2Q1bb1R b - - 0 1 illegal: No proof kernel
k2Qb3/qB2Nq1r/Rn1P1nB1/3RR1br/N1n4n/B1P3Qb/3b1P1K/1N6 b - - 0 1 illegal: No proof kernel
1RK5/k1b2N1b/P1PrRnb1/6Qn/7b/BrNn2n1/Rq1B1QQP/1B5q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 g5 Kf3 d5 Kg4 Kd7 f4 Kc6 c4 b5 a4 Kb7 h6 e5 h7 e4 a5 b3 a6+ Ka7 c6 b4 c7 e3 c5 b2 c6 e2 Qd2 e1B Nc3 b1Q Bb2 d4 Bg2 d3 Na2 b3 Ba3 b2 Nh3 Qd5 Nc3 Bh4 Re1 Nd7 f6 Bd6 f7 Rb8 f8R Rb3 f5 Qc2 f6 b1B f7 Qb2 Bf1 Qh1 Kf5 g4 Ke6 g3 Qg2 d2 Ng5 d1N Bd3 Ngf6 Ra2 Nf2 Rg8 Bf4 f8Q Nh5 Nf7 Ndf6+ Ke7 Be6 Kd8 Bf5 c8Q Bg6 Qg4 Bc7+ Kc8 Bc2 Bf5 Nd3 Re6 Bb1 Qg5 Bc2 Qf3 g2 Qe4 g1N Qeg2 Ne2 Qc5+ Rb6 Qcf2 Neg3 Rd8 Re8 h8B Re7 Bg7 Rd7 Bh6 Rd6 Rh8 Nc5 Bd3 Rb3 Be4 Bd1 Bb1 Bdc2 Qgf5 Be4 Bd2 Bh7 Qg5 Beg6 Rd8 Rd4 Rd5 Nd3 Rc5 Rd5 Rb5+ Rd4 Rb6 Rd6 Rb8+
4brB1/QbP4N/bK3NnB/1nQ2q2/k1r2P1B/r5PQ/4R2R/b2rq1R1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 e5 Kc4 h5 b4 a4 f6 h4 b6 d5+ Kb5 Kd7 c4 e4 b7 h3 f7 a3 c5 a2 f3 h2 g6 d3 g7 e3 Nd2 e2 Ne4 e1Q Bh6 d4 Qb3 d2 Bc4 d1R Nh3 d3 Nhg5 d2 Nh7 Nc6 b8B Ra4 Bg3 Qf6 f4 Qf5 Kb6 Ba6 b5 Nd4 Bh4 Ne7 g8R Bg7 f8Q Ng6 Qh3 Bf6 Rc1 a1R g3 R1a3 Bb3 Rc4 c6+ Ke6 c7 Kd7 Rg1 h1B Qc5 Be5 Ra8 Rf8 Re8 Bf6 Rc2 Bf3 Nd6 Bfb7 Re2 Be5 Ne8 Bg7 Ka7 Be5 b6 Nb5+ Kb8 Ba1 Rh2 Rca4 Bg8 Rc4 Ra2 Rdc1 Rb2 d1B Rbf2 Bh5 Re2 Be4 b7 Rd1 Qd4+ Kc6 Qe3 Nd4 Ka7 Kb5 b8Q+ Beb7 Nef6 Ka4 Kb6 Nb5 Qf2 Ne7 Qd4 Be8 Qa7 Ng6 Qc5
5Q1q/B2rQ1b1/K5n1/1R1r1Bpr/RBb2Q2/2PP4/P3qNq1/1N1R1knb b - - 0 1 illegal: No proof kernel
4r1R1/1n1BnNb1/qB2R3/pQ3n1N/2PP4/k1q2Q1q/N1B1rP1r/1bQK4 b - - 0 1 illegal: No proof kernel
q2q3b/2N1nr1b/1K2NP2/Bp1QqP1R/2Bn1n1R/B1kN1P2/1Rr5/5rQ1 b - - 0 1 illegal: No proof kernel
bnr1B1R1/n1qQBNk1/rP4q1/3rb3/bKNRP3/5p2/2NP1R2/Q4Qq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 a5 e4 f5 b4 Kf7 h6 c5 h7 g5 d6 g4 b6 c4 b5 c3 h5 c2 h6 a4 d7 f3 b7 g3 b6 f2+ Ke2 g2 Kd3 f4 Kc3 a3 Rh2 f3 Ne2 g1Q Nd4 a2 Na3 Qg6 Bb5 f1B Rf2 Qc7+ Nc4 Bd6 d8Q Ne7 Ba3 c1Q+ Nc2 Ra6 Qd7 Be5+ Kb4 Kf8 Rb1 a1R Rb3 Be2 Qf1 Bd1 Rd3 Ra2 Rd4 Nec6+ Kc5 Na7+ Kb4 Rg8 h8Q Ra5 Ba4 Rd5 h7 Qa1 Qdh3 Be6 Be8 Bd7 Qe6 Bc6 Qd7 Qc1 N2e3 Bda4 Nc2 Qd1 Qf6+ Qf7 h8N Qc1 Qh4 Qg6 Nf7 Kg7 Qhh1 Qe1 Qhg1 Qe3 Qa1 Qeg5 Qgf1 Qg1 Qd8 Nd7 b8R Ba8 Rc8 Nb8 Qd7 Bb5 Bb2 Ra6 Ba3 Rh8 Kb3 Rg8 Be7 Ba4+ Kb4 Q6g3 Rd8 Qb7 Rc8 Kh7 Rc6 Qc7 Rg6 Rf8 Rg8 Qg6 Nfd6 Kh6 Bf7 Rc8 Be8 Kh7 Rf8 Kh6 Nf7+ Kg7 Rg8+
6nk/1BN2Rn1/qPb5/q3R2N/pbQ2PQ1/1r5Q/qr1N1Pr1/B2K1n1B b - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 f5 e3 f4 exf4 Bh6 Bd3 Bg7 Bf1 Bf8 g3 Nh6 d4 Kf7 b4 Kg8 g4 e5 d6 a5 d5 c5 g5 c4 g6 h3 g7 h2 b6 c3 b5 a4 b7 e4 d7 c2 d6 e3 b6 e2 Ra3 Nf5 Qd2 h5 Rf3 h4 Bb2 c1R+ Qd1 h3 Ba1 Rc2 Re3 Nc6 b8Q Bb7 Re5 Qc8 d8Q Nce7 d7 Rb2 Qbc7 Bf3 Bg2 Qa6 Qb3+ Kh7 Qc1 Bc6 Qcc4 Rg8 Qc7 Rd8 Qa3 Bb5 Bb7 Bc6 Qe3 Rb3 Kd2 e1Q+ Kc2 Qb4 Ne2 Qba5 Rg1 h1Q Ng3 h2 Qc8 Qf3 Nh5 h1N Rg3 Qe4+ Kd1 Qd4+ Qed3 Qb2 Rg6 Qa2 Rf6 Rb2 Rf7 Ng3 Nd2 Nf1 Qg3 Nh6 Qh3 Nef5 Re3 Re8 d8N Bb4 Ne6 Rd8 Re4 Rd3 Re5 Rdb3 Nc7 Rd8 g8B+ Kh8 Bh7 Rg8 Qd7 Rg6 Qde6 Ng7 Qd7 Rg4 Be4 Ng8 Bh1 Rg2 Qdg4
N1B5/Qq3bK1/qPPnq1PR/rQpnB3/7n/2b1R1r1/3rN1N1/1BQ4k b - - 0 1 illegal: No proof kernel
2N1n1nK/3qN1BP/P7/1BBQ4/5prr/b4bqk/brRnR2P/3NQR2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 b5 Kd4 g5 e4 f5 a4 g4 a5 f4 d6 Ke6 a6 b3 h6 b4 h7 g3 d7 b2 Bb5 c6 Nh3 g2 Nc3 b1N Ra2 g1Q+ Nf2 b3 Nd5 b2 Qe1 Ra7 Ne7 Qg3 Rf1 Rc7 Nd1 Qe8 d8B Rb7 Bb6 Nd7 Bc5 Ndf6 d3 Rb8 Bd2 Bb7 Bc3 Kf7 e6+ Kg7 Ke5 Kh6 d4 Kh5 d5 Kh4 d6 Nd2 d7 b1B d8N Kh3 Rc2 Qd7 Nf7 Ba2 Nd6 Ne8 Ndc8 Ba8 Kf5 Rb7 e5 Rb8 Be2 Rb2 Bb5 Bb7 Qe4 Ba8 Qd5 Bb7 Ba7 c5 Bd4 c4 Bac5 Qe3 Kg6 c3 Nc6 Bd6 e7 Qg3+ Kf7 Ba8 e6 Bb7 Bg7 Ba8 Bb6 Ba3 Bc5 Bb7 Rc1 c2 Kf8 Nd6 e8R Ba8 e7 Bb7 Ra1 c1R Rb1 Rc4 Rc1 Rc3 Rc2 Rcb3 Rd8 Ba8 e8Q Rc3 Qe3 Ne8 Qe1 Re3 N6e7 Bc6 Qd6 Bf3 Qd5 Re5 Kf7 Rh5 Kf8 Rh4 Kf7 Qdg4 Rd6 Qd7 Re6 Ngf6 Re2 Rg8 Bf8 Rgg4 Bg7 Nfe4 Kg8 N4f6+ Kh8 Ng8 Qa8 Qf5 Qc6 Qd7 Qd5
3Nk2R/Q3NP2/3pR2Q/1nrP1RP1/3bB2N/2r2n1r/b1qBK2B/q1b2n2 b - - 0 1 illegal: No possible last move
4n3/b1B1pnkB/3Nb1P1/4qQ1R/1qnqP1QB/2b1r2R/Q1KR1P2/1N3r2 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 cxd5 fxg4 h4 Bg7 hxg5 Bf8 d4 Kf7 Kd2 c5 b4 h5 e4 a5 b6 h4 d6 a4 d5 c4 d7 c3+ Kd3 c2 g6+ Kg7 b7 h3 b5 g3 b6 g2 d6 a3 Bb2+ Nf6 Be5 c1B Bg3 a2 Bh4 h2 Kc2 Be3 Nh3 g1N Ng5 Ra3 Bc4 Ne8 Bg8 Nc6 b8B Nh3 b7 Ne5 Nf7 Ng5 Bc7 Ba7 b8Q Re3 Qb3 Nc4 Qg4 Rh5 Bh7 Rh6 Rg1 h1Q Rg3 Qe1 Rh3 Rh5 Qb5 Qb4 Qbf5 Rh6 Ba5 Qdb6 d8Q Be6 d7 Qd4 Nd6 Nf7 Qa8 Rh5 d8R Rg5 Qe2 Rg1 Bc7 Rf1 Qeg4 Qe5 Na3 Qd4 Rd1 a1Q Rd2 Qe5 Nb1 Qad4 Rb8 Kh8 Qd5 Bg7 Rb5 Bf6 Qa8 Kg7 Rc5 Bb6 Qa5 Ba7 Qa2 Qg3 Bg5 Qd5 Bh4 Bc3 Qff4 Qd4 Rh5 Qh2 Qfg5 Qhe5 Q5f5
1b3n2/1kp2Q1R/rQr1N1BB/1q3RP1/1P2K1n1/rb1P4/qb1N4/3N1RQn b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 a5 b4 e5 g4 h5 d3 e4+ Kf4 h3 g5 a4 f3 h2 b6 a3 f6 h4 b7 a2 f7 e3 d6 Kc6 d7 h3 Ne2 Nh6 Nec3 e2 Ke3 e1Q+ Be2 Qd2+ Ke4 Ng4 f4 Ra3 f5 Bc5 f8R Ba7 f6 Rh6 f7 Qf6 d8Q Nd7 Bb2 Bb8 Qe8 Ra6 Rf1 h1R Qc1 h2 Nd1+ Qc2 Nd2 Kb6 Rh8 Nf8 Rf5 Be6 Rh7 Bb3 Qe7 Qh8 Bg7 Rc6 Bh6 Ra3 Rb1 a1B Bf3 Qcb2 Qcc5+ Ka6 Qg1 Qa2 Qe8 Bb2 Bg2 Nd7 f8N Qg8 Ne6 Nf8 Ra1 Qf7 Qe7 Qe8 Qf7 Qd7 Qe3 Rf1 Qg1 h1N Bf3 Rd6 Rb1 Qb5 Rc1 Rc6 Be2 Nh2 Bh5 Ng4 Bg6 Rf3 Ne3 Ka7 Rf1 Kb6 Re5 Rf6 Ref5 Ba7 b8Q+ Ka6 Qd8 Kb7 Qd4 Bb8 Nd1 Rca6 Ng7 Rfd6 Ne6 Rdc6 Qb6+
r1BnR3/P1q3b1/1p1nB3/1B3P1b/QQ2qNk1/R7/rP1KQ3/Rb2N1qr b - - 0 1 illegal: No proof kernel
3bb1QR/1B2N2n/1n1q2r1/1N1R4/2Q2Q1b/3RPpPb/BP4n1/1KBb2rk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 Ke7 Kd2 Kd6 Kc2 a5 g3 h5 g6 c5 b6 f5 b7 c4 g7 c3 Rh2 f3 Qe1 a4 Bg5 f4 Nd2 a3 Nh3 a2 Ng1 f2 Nb3 h4 Rh1 h3 Rd1 a1N+ Kb1 h2 Bh4 c2+ Kc1 Nd7 Qd2 Ra6 Qc3 Ngf6 g8B Nb6 Nf3 Bh3 Rd3 Nh7 Na5 Be7 Bg2 f1B b8Q+ Qc7 Qb3 Bd8 Bg5 Bd7 Nc6 Be8 Bf7 Rg8 Qc3 Rg6 Qc4 Ra3 Ne7 Ra2 Kd2 c1B+ Kc3 Nc2 Bg8 Kd7 d6 Ne1 d5 Ra1 Nd4 Be3 Be4 Bh3 Nb5 Ng2 Kc2 Rg1 Bf3 Bd4 Bh6 Bf6 Bf7 Ne1+ Kb1 Bh4 Be4 Bf1 Bf3 Ng2 Be4 f3 Bc1 Qc6 e3 Be2 Qa8 Bd1 Qa5 Rh6 Qac3 Qc5 Qf6 Rg6 Qf4 Re1 Rf1 h1B Rf2 Rg1 Rfd2 Ne1 Rh2 Bg2 Bg8 Bh3 Bf7 Ng2 Bg8 Bf7 Rh1 Ke8 d7+ Kf8 d6 Kg7 Bb7 Be8 Qb4 Qc6 Ba2 Qc7 Qfc4 Kh6 Qf4+ Kh5 Qbc4 Qc5 Rh2 Bc7 d8R Qd4 d7 Qd6 Rc8 Bd8 Rc5+ Bf5 Nd4 Re6 Rd5 Nf6 Ndc6 Bc7 Qe5 Kg5 Qb3 Kg4 Rh1 Bg5 Rh7 Bh4 Rh5 Kh3 Rh8 Kh2 Na7 Nh7 Qf4 Bh3 Nb5 Kh1 Qba4 Rg6 d8Q Bf7 Qf8 Be8 Qg8 Bd8 Qac4
3N3k/1bB1Rnn1/1NrRQQ2/Rr2N2n/3pP3/b1bPq2P/3b1B2/4bKB1 b - - 0 1 illegal: No proof kernel
1n2n1N1/K2R3b/NQ4B1/B2rr2P/B1P1pn1R/n4rn1/k1PN2qb/1Q3R2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d3 h5 gxh5 c4 dxc4 Rh6 Qd4 Rh7 Qd1 Rh8 Kd2 g5 Ke3 b5 Kd4 d5 Kc5 Kd7 a4 d4 f4 g4 h4 d3 a5 b3 a6 b2 a7 g3 f6 d2 h6 g2 f5 b4 h7 b3 f7 Nf6 h5 Ne8 Nh3 g1N f6 Ne2 Nf4 Ng3 Nd5 e5+ Ne7 Ke6 Bd3 Qd5+ Kb6 Qg2 Bg6 e4 Rf1 Kd6 Ng8 Bf5 Ra6 Bh6 f8N Bf4 f7 Be5 Qe1 d1R Nd2 b1N Ne6 b2 f8R Nc3 Nc7 b1N Ra5 Na3 Na6 Nce2 Rd5+ Ke6 Rd4 Nf4 Rd7 Bd6 Rh1 Ke5 Rh4 Kd4 Kb7 Kc3 Qe3+ Nd3 Qb6 Nf4 Rf6 Rf1 Rff7 Rf3 Rf6 Nb1 Ba3 Bc7 Bb4+ Kb2 Ba5+ Ka2 Rf8 Na3 Rff7 Nc6 Rf6 Rc8 a8B Nb8 Ka7 Rd8 Bc6 Bd6 Ba4 Be5 Rb7 Rd5 Rd7 Bc7 Ne7 Rf8 h8Q Rf7 Ng8 Re7 Qh6 Re6 Qf8 Ree5 Qfb4 Bd6 Bf7 Bh7 Bg6 Bc7 Rfd6 Nf1 Q4b5 Nd3 Q6c6 Rc5 Qcb6 Rg5 Rd5 Bh2 Nb1 Nf4 Rd1 Ng3 Nd2 Rcd5 Rf1 Rge5 Qb1+
3r3q/n3QPkP/BNb2Qp1/2b3b1/2N2Pr1/3nQr2/1RK2R1b/2B1BN1b b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 d5 h4 a5 b4 e5 b6 d3 b5 d4 b7 g6 c5 e4 c6 a4 f6 a3 b6 a2 c7 Ra4 h6 Bd7 c8N Na6 b8Q Nc5 h7 Ne7 b7 Bc6 Nb6 Nc8 h5 Na7 Qe2 e3+ Kd1 d2 h6 Nd3 Qf4 Ra3 b8B Bc5 Kc2 d1R Rh2 Rf8 h8Q Ra4 Qe1 e2 h7 Bh1 Qb4 e1B Na3 Bd2 Rb1 a1B Nac4 Qe8 Qf3 Bg5 Qe3 Qe5 f3 Rd8 Be2 Rf1 Rf2 Bc3 Rb2 Be1 Rh2 Bg3 Rf2 Bh2 Bc7 Qe8 Bg3 Qg8 Qa3 Kf8 f7 Rb4 Qhe5 Qh8 Qd6+ Kg7 Qee7 Ne5 Qe3 d3+ Kc3 d2 Kc2 Nd3 f4 Rb3 Nf3 Rg1 Bh4 Rg4 Qdf6+ Kh6 Kb1 d1B Nfd2 Bc6 Bf1 Bdf3 Kc2 Bh1 Be2 Ne5 Nf1 Rbd3 Qd4 Rf3 Qe3 Nd3 Ncd2 Ne5 Ba6 Nd3 Ndc4 Bd7 Rg2 Be8 Be1 Bc6 Qfd6 Kg7 Rf2 Nc8 Qde6 Na7 Q6f6+
3R1n2/1n1r1p1q/BB2r3/2Prr3/b3NrP1/2Qn2Q1/1R1B1PRN/K2N2bk b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 g4+ Ke4 c4 a5 c6 h5 c7 d5 e6 h3 c5 h2 e3 a4 e7 a3+ Ka2 h4 e8N d4 b6 d3 b7 d2 Qb3 d1R Qc3 h3 Bb2 Rd7 Qb3 Nc6 b8B Rh6 Qb7 Bd6 Qb5 Nge7 Bc1 Nb4+ Kb3 a2 Kb2 Re6 Nf3 Ra4 Rg1 h1R Qa5 h2 Bd2 Ng6 Ba7 Nf8 Ba6 Qh4 Rg2 Rd1 Bb6 h1R Nh2 Bb7 c8Q Qh7 Qb8 Bc6 Qc7 Rhe1 Qb8 Ra3 Qc7 Ba4 Qb8 Rc3 Qc7 Rc4 Nc3+ Ke5 Qb8 Rf4 Rb1 a1N e4 Nb3 Nf6 Nd3+ Ka2 Re2 Rb2 Re3 Qb4 Na5 Qb3 Kd4 e5 Nb7 Nfe4 Bc7 Bc1 Rd2 Nd1 Re1 Qc3+ Kd5 Ng3 Ree4 Ka1 Re1 Nf5 Ke4 Qd8 Ree7 e6 Rf3 Qa5 Rd4 Nf1 Bh2 Rg1 Rde2 Bd2 Rd5 Qd6 Rc7 e7 Rd7 Qg3 Rf4 Qc3 Re3 Qh4 Kf3 e8R R1e2 N5g3 Re6 Rd8 R2e5 Ne4 Qg8 Rh1 Bg1 Rh3+ Kg2 Nh2 Qg7 Rg3+ Kh1 Rg2 Qh7 Qg3
2r1n1r1/Pq4Nn/QRNn4/4Q1NR/1BRpb1K1/P1Bn4/k3BbPr/2n5 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 d4 cxd4 h4 Qc7 hxg5 Qd8 Ke2 Kf7 Kf3 d5 c4 e5 a6 h5 a7 b5 a3 d3 c5 h4 f6 Ke6 g6 e4+ Kf4 h3 f3 b4 g7 d2 f7 h2 c6 b3 c7 e3 Kg4 b2 f4 e2 Nc3 b1N Na2 e1N Ne2 Bb7 c8N Qe7 Qa4 d1N Nec3 Na6 Bd2 Nd3 Be2 Nc7 Nd6 N1b2 Nce4 Nc4 Bc3 Ne8 Qa6 Nbd2 Nb4 Rc8 Rac1 Nb3 Nf5+ Ncd6 Nc6 d4 Ng5+ Kd5 Rc2 Nbc1 Rb2 Qd7 Rb6 Be7 f8Q Ba8 Qf6 Qb7 Qa5+ Kc4 Qae5 Nb3 Rc1 h1R Qg6 R1h7 Rh1 Nc1 Rh5 Nb5 Qh6 Kb3 Qhd6 Ka2 Qdf6 Bd6 Qh6 Ne7 g8R Ng6 Ng7 Nf8 f5 Be7 f6 Nbd6 f7 Bd8 Nf3 Bh4 Ng5 Bf2 Qg6 Rh6 Qgf6 Nh7 f8B Rg6 Be7 Rh6 Rf8 Rg8 Rf7 Nc4 Beb4 Ncd6 Rc7 Qb8 Na5 Be4 Rc4 Qb7 Qfe6 Rf6 Nc6 Rf3 Q6d5 Rh3 Qa5 Rh2 Qa6
k7/pbb2N2/Pn2R3/BR4Qq/P3Q1n1/3r1PN1/n1R1n2N/B1bnK1Qr b - - 0 1 illegal: No proof kernel
1qr4Q/3Nb1N1/b2rQ2n/1NPBR3/R3rP1k/n1B1P1R1/1np4K/Q1b1n3 b - - 0 1 illegal: No proof kernel
5B1Q/Bb2R1p1/r1P4N/Q3K1P1/1b1PR1Nn/6nq/r2r1nNb/2nk1Q1B b - - 0 1 illegal: No proof kernel
1QK2n2/Q2P4/2B1rR2/R2N1PbB/2PRn3/3N1p2/1bkrnrbb/Bq5N b - - 0 1 illegal: No proof kernel
k4r2/n2pQPK1/N1Q5/2PRN1b1/1r2n1B1/bRnP4/rbq1Q1B1/B3R2n b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 bxc5 gxh4 a4 b4 Ba3 Ba6 Bc1 Bb5 axb5 Qc8 Rh2 Qc7 Rh1 Qd8 Ke2 a5 Ke3 e5 Ke4 h5 g4 a4 c4 h3 f4 b3 c6 h4 c7 h2 c8Q a3 c5 b2 g5 a2 b6 h3 d3 Rh7 g6 Bh6 g7 Rh8 b7 Nc6 b8R Bg5 f6 Na7 Kf5 e4 Kg6 e3 f5 e2 Nc3 b1N Nb5 e1B Nf3 Bb4 Bb2 Nc3 Ne5 Ba3 f7+ Ke7 Qh5 Qa5 Bg2 Qa4 Nc7 Nf6 g8B Qc2 Rb3 Nfe4 Rae1 a1B Na6 Rb8 Rhf1 h1N Qe2 h2 Qc6 Kd8 f6 Rb4 Bh7 Re8 Kg7 Rh8 Bf5 Rf8 Qa4 Kc8 Bg4 Kb7 Rf5 Ka8 Qb5 Rb8 f8Q Re8 Qe7 Rf8 Bc1 B1b2 f7 Nf2 Be3 h1R Bd4 Rh6 Qb6 Nh1 Qb5 Rb6 Qc6+ Rb7 Rf6 Ra4 Rd6 Rb4 Rd5 Ra4 Qh6 Rbb4 Qb6 Ra5 Qc6+ Rb7 Rf1 Na2 Qcf6 Ba1 Nc6 Rab5 Rbb1 Rb2 Ne5 R7b4 Rfe1 Nc8 Be3 Na7 Bc1 Nac3 Be3 Ra2 Rb3 Na4 Bc1 Bd4 Bb2 Bc3 Ba1 Bcb2 Qh6 Nac3 Qc6+
n1b3Nb/r1pP4/1R2NN1q/1n1Q2k1/2bB4/1n1BKP2/1PB1Rr1r/1b3R1Q b - - 0 1 illegal: No possible last move
B1b5/B3R2K/n1QP3P/bN1bQB2/b1r4r/6pN/1N1qRQPn/kq4b1 b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kb4 d4 Kb3 b6 g5 b7 c5 d6 a5 d7 f3 Kf5 f6 Kg6 f2 e4 f5 h5 f4 d5 c4 e5 c3 e6 c2 e7 a4 e8B f3 h6 g4 Nh3 g3 Na3 Be7 Nc4 a3 Bd3 f1B Qf7 f2 Be3 c1B Ba7 a2 Bf5 Bcg5 Re1 a1Q Re2 Ka2 b4+ Bd2 b5 Bc5 b6 Qb1 Nb2 Na6 b8Q Ka1 b7 Nf6 Qd6 Ng4 b8Q Ba5 Qc6 Nh2 Qe5 Rb8 Qff6 Rb4 d6 Rh4 Kg7 Bcb6 Qf8 Qg5+ Beg6 Qd2 d8N Rg8+ Kh7 Be3 Be8 Rgg4 Ne6 Rc4 Nc7 Bd4 Nb5 Bc5 Re4 Bd3 Beg6 f1B Re2 Bc2 Be4 Be3 Qf2 Ba4 Bgf5 Bc5 Re1 Bd3 Re2 Bcb6 Bd5 Be4 Rhe1 Bd4 Qd7 Bdb6 Ba8 Bd5 Qc6 Bc5 Qc3 Bd4 Re7 Bdb6 Qe5 Bc5 Re2 Bd4 Qf1 Bg1 Qf2
r1R3N1/2q2pB1/5N1b/1qP2R2/1r1NKQq1/n1k1n2Q/1b3P1P/qBQ1Bq2 b - - 0 1 illegal: No possible last move
k1qnrN1R/2BP4/3rqn1p/1R1n2n1/BN2N3/nQP4P/3K2b1/bRB1Q3 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 Ba6 fxg5 Bc8 g4 Kd7 d4 Kc7 d5 Kb7 b6 a5 g6 e5 g5 f5 h3 a4 d6 f4 g7 h6 g6 f3 d7 a3 Rh2 f2+ Kd2 a2 Bb2 Ra6 c6+ Ka8 c7 Nc6 Nf3 Nf6 g8Q Bb7 c8N Bg7 Nd6 Qc8 Ng5 Nd8 Qb3 Re8 Ne6 Bc6 Bb5 f1N+ Kc1 e3 Na3 e4 Rb1 a1N Ba4 e2 Nf8 e3 Qe1 Bh8 g7 Bg2 g8R Bg7 Ne4 Bh8 Qh4 e1N Qf2 Bg7 Rh8 Nf3 Qe1 e2 Rh1 Ne3 b7+ Kb8 Rf1 Ng5 Rf5 Rd6 Rb5 Ned5 Kd2 Ka7 b8B+ Ka8 Rh7 Bh8 Bc1 Bg7 Bc7 Bh8 Qh1 Bg7 Rh8 e1Q+ Kd3 Qc3+ Ke2 Qe5 Kd2 Qe6 Qe1 Nfh7 Nc5 Be5 Ne4 Nhf6 Nf2 Bb2 c3 Nc2 Ne4 Ba1 Ke2 Nce3 Nc2 Nc4 Nb4 Na3 Kd2
1QBbb1bK/n1P1Q3/2q1Nk2/Pn2N1r1/p1R2br1/1q6/1P2NBR1/5bRQ b - - 0 1 illegal: No proof kernel
1b2qr2/RP2B1KQ/2bRrn1P/3q4/2BQ1B2/2N2Rn1/p1NkNqP1/q5q1 b - - 0 1 illegal: No possible last move
4b2k/BPNP1n2/1qN1RB1Q/nqbP1Kn1/2B1r1R1/1n3pQ1/1N6/r1R2n2 b - - 0 1 illegal: No possible last move
6bq/B1Bn1n1N/3R1b1R/rb1QQ2B/2P2PQ1/3r3R/p1b1P1nK/2k1Nq2 b - - 0 1 illegal: No proof kernel
1Nb1bn1n/1r2br1N/5q1Q/q1Q1BRBp/b4PB1/Q4RP1/2P1k3/2N3Kn b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 b4 Kf7 f4 d5 Kf2 a5 g3 e5 b6 d3 b7 d2 f6 Ke6 g6 Kf5 f7 Ke4 b5 a4 b6 d4 g7 a3 Rh2 d3 Qh5 d1B Qh3 a2 Be2 d2 Rg2 Nh6 g8N Ra7 Qe6 Qf6 Ba3 Nd7 b8B Be7 f8Q Nf7 Nh3 Rb7 Kg1 Ke3 Ng5 e4 Bg4 Bf3 Be5 d1B Nc3 h5 Bb4 Bde2 Rf2 Bb5 Ne2 Ba4 Nc1 Rh7 Rf1 Rg7 Nh7 Nh8 Qc6 Rf7 Qh6 Nf8 Qb5 Rd7 b7 Bh1 b8Q Rb7 Rb1 a1Q Qd6 Qc3 Ba3 Qa5 Qbc6 Bf3 Rb5 Be2 Rc5 Beb5 Qcc7 Be8 Qa6 Kd2 Rf3 e3 Bab2 Qg6 Ngf6 e2 Nd7 e1N Nb8 Nd3 Bf6 Kd1 Bbe5 Nf2 Bg5 Nh1 Rd5+ Ke1 Qc5 Qf6 Qd3 Be6 Qda3 Bc8 Bd4 Kd2 Rf5 Kd1 Be5 Ke1 Na2 Ke2 Nc1+
rQ1N2Rr/8/q1Q1B1KR/1R3Pb1/B1P1nP1r/1p3n1N/1Br2q2/Q2qkb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Ke3 Kf6 Ke4 e5 c4 g5 a4 d5+ Kf3 b5 Kg4 e4 h6 Ke5 Kh5 e3 f3 Kf4 a5 d4 h7 d3 c6 d2 a6 e2 h3 Ke3 c7 Kf2 a7 e1R Bg2 g4 Na3 g3 Rb1 b3 Kg6 b4 Nb5 b2 Nd6 Nc6 Nb7 Bh6 h4 Nf6 f4 Bg5 h5 Ne4 h6 Nd4 Qa4 d1Q Qa1 Nf3 Nh3+ Ke2 Rh2 Q8d3 Rh1 Qa3 Nd8 Bb7 c8B Qa6+ Be6 Rf1 Rh2 Ke1 Bh1 Rf2 Bg2 Re8 h8Q Rc2 h7 Bd5 Bh1 g2 Qf8 g1Q h8R Qgd4 Rg8 Qf2 Qd6 Rf8 Qb8 Re8 Rg7 Rh8 Rg8 Nf6 Bg2 Be4 Bh1 Bd3 Bg2 Bf1 Bh1 Nd4 Bc6 Nf3 Ba4 Ne4 Qd6 Rb8 a8Q Rc8 Qac6 Ra8 Qb8 Rh4 Be3 Rh8 Bd4 Rh4 Rc1 b1R Bh8 Rb3 Rb1 Rd3 Rb2 Rd7 Rb3 Rdh7 Bb2 R7h5 Rd3 b3 Rd5 Rh7 Rb5 Rh8 Ng1 Rg4 Rh6 Rh4 Nh3
k2R1r2/rQ1nq3/3q1b1n/B3Pn1N/BP1Nb3/1RNpQ2P/2q5/q3BQK1 b - - 0 1 illegal: No possible last move
1qBNR1N1/n2r3B/2R1bqb1/2RqP3/PkN3P1/Q3rbnp/1B5Q/K1b5 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 a4 Kd7 g4 c5 d4 f5 Kd2 b5 Kc2 h5 Kb2 b3 e4 b4 d6 Kc6 e6 f4 g6 f3 d7 h4 g7 c4 d5+ Kc5 e7 h3 e8Q f2 d6 Rh7 Qf3 Nc6 Bg2 f1Q Nc3 Na7 Rh2 Nf6 g8B Nh5 Bh1 Ng3 Nd5 Bh6 Qe5 c3+ Kb1 b2 Rc2 Qd3 Nf6+ Qd5 Be6 Bb7 Ng8 Qb8 d8R Rd7 Re8 Kc4 Ra3 Bc8 Ka2 b1B+ Ka1 b3 Bb2 Bc1 Qf8 Bb7 Nf3 Ba2 Nd2+ Kb4 Nc4 Bc6 Rf2 c2 Rf6 Qd8 Rh6 Qf6 Qf4 Rc8 e5 Ba8 Be4 Rc5 Na5 Rc3 Nc4 Re3 Rg6 Qb5 Qf2 Qb8 Qh2 Bb7 B4f5 Bf3 Bd3 Bd2 Rh6 c1Q+ Bb1 Qc3 Bh7 Bc1 Bef5 Qd2 Be6 Rg7 Bc8 Qd5 d7+ Re7 Qg7 Rf7 d8N Rd7 Qg5 Bb1 Ra2 Bf5 Qg7 Be6 Qe7+ Qc5 Bd4 Qcd6 Rc2 Qc5 Bb2 Qcd6 Qg7 Qd5 Qe7+ Qbd6 Ba6 Qf4 Nf7 Kc5 Nd8 Bf7 Bc8 Qf5 Bc3 b2+ Kb1 Qf4 Na3 Qb4 Qf8 Qb8 Rg6 Qe7 Rd6 Qf6 Bd4+ Kb4 Rdc6+ Ka5 R2c4 Be6 Ka2 b1B+ Ka1 Bd3 Bb2 Bg6 Qd6 Qd1 Qd3 Qd2 R4c5+ Kb4 Nc4 Qd1 Qf1 Qdd6 Qd3 Qd5 Qa3+
2N4R/2nB4/n1K2B2/3PPqP1/1RR3NB/p1rQbb1Q/n4Q1r/qkrr4 b - - 0 1 illegal: No possible last move
n1n1K1bq/RQr1N3/N3k1n1/1P6/p1QQP1N1/2B1P2R/1b1q2n1/2R2Brq b - - 0 1 legal: proof: h4 d5 c4 b5 cxd5 g5 a4 gxh4 axb5 e5 f3 e4 fxe4 Be6 Ra4 Bd7 Ra1 Bc8 Kf2 Ke7 Kf3 f5 Kf4 h5 Ke5 c5 b4 a5 d4 c4 g4 a4 b6 f4 b7 c3 b5 f3 g5 c2 g6 h3 g7 h4 Bd2 c1N Bc3 h2 Nh3 Be6 Nf2 h3 Ng4 Na6 b8N Nc7 Na6 f2 d6+ Kf7 d7 Ne7 Kd6 Nd3 g8R Ne5 d5 Ra7 Qb3 Bg7 Qc4 Na8 Re8 Qa5 d8Q Rg8 Qdc8 Rc7 Qb7 N5g6 Ra3 Bh8 Rg1 h1Q Rb8 Nb6 Ra8 h2 Ra7 Na8 Rb3 Rg7 Ra3 Kf8 Rb3 Bg8 Ra3 Kf7 Rb3 Rc8 Kd7 Rc7+ Kd8 Nc8 d6+ Kf8 d7 Qb4 Qd4 Kf7 Qd3 Ke6 Ke8 Qd6 d8Q Qf4 Q8d4 Qd2 Bh3 f1N Ra3 Ne3 Rc1 Rgd7 Bf1 Ng2 Q3c4+ Rd5 Ba1 Be5 Rh3 Bf6 e3 Bg7 Qdc5 Bb2 Q4d4 Rg5 Nc3 Qg1 Nd5 h1Q Ne7 Qgh2 Rf3 Qh8 Rh3 Ba3 Bc3 Bb2 Be2 Rf5 Qcb4 Rf1 Bd3 Rg1 Bf1 Ne5 Qbc5 Ng6 Qcc4+
1b2R1q1/2r2n2/2nr2QR/P1BB2kn/1P1Q3r/q1P1K1pr/3Q2N1/R2b2NN b - - 0 1 illegal: No proof kernel
B1qn1kRr/B1R2n2/3Pb3/2Q1q1bp/rP1N4/1RnQ4/bN2PK2/5BnN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 a5 g4 c5 b4 f5 g6 h5 g5 f3 g7 a4 d6 c4 d5 a3 b6 a2 g6 c3 b7 f4 Qc2 Nh6 g8R Nc6 b8Q Ra4 g7 Be6 Be3 Qc8 Nd2 Nd8 Qa7 Nhf7 Qd3 c2 Rb1 c1N Qc5 a1Q Nc4 Qe5 Rb3 Na2 Nh3 Nc3 Nb2 f2+ Kd2 Ng5 d7+ Kf7 d6 f3 Rg1 Be7 Rg4 Bd5 Rc4 Be6 Bg2 f1N+ Ke1 Nh2 Nf2 Bd5 Nh1 Bf6 Kf2 Be6 Bh3 Be7 Kg1 f2+ Kg2 f1B+ Kf2 Bg2 Bd4 Bc6 Bf1 Bcd5 Be3 Nc6 Bd4 Nhf3 d8N+ Kf6 Be3 Nf7 Bd4 Ng1 Be3 Bf5 Ne6 Ncd8 Nd4 Bg4 Rf8 Bde6 g8B Kg7 Bh7 Bh3 Be4 Bg5 Ba8 Bg2 Qb5 Bb7 Rc7 Bbd5 Qc5 Bc4 Ra3 Ba2 Rb3 Rh7 Re8 Rh8 Rg8+ Kh6 Nb5 Ra7 Qcc4 Ra5 Ba7 Ra4 Re8 Kg7 Qc5 Bd7 Nd4 Bf5 Re6 Kf8 Rg6 Be6 Rg8+
1R6/3Q1k2/2bPn1pQ/1nqb2P1/N3BP1N/6r1/q1R1rQn1/B2KnNRr b - - 0 1 legal: proof: e4 b5 h4 d5 c4 f5 cxd5 fxe4 a4 g6 axb5 Ba6 h5 Bg7 h6 Bb7 hxg7 Bc8 f4 c5 g4 a5 d4 h5 b4 e5 d6 h4 d5 h3 b6 c4 b7 h2 d7+ Kf7 b5 a4 d6 e3 g5 a3 b6 c3 Bh3 c2 Ra2 e4 Qg4 e2 Nd2 Nc6 b8R Na7 b7 Qb6 d8Q Nh6 g8N Qc5 Qh4 Be6 Qf2 Nb5 Qg3 Nf5 Ne7 Ng7 Qe3 Bd5 Bb2 Re8 Nf1 Ne6 Nc8 c1R+ Kd2 e1N Qf2 Ra6 Bf5 Ng2 Ba1 e3+ Ke2 Rb1 Rc2 a2 Nf3 Ra3 Rg1 h1B Nh4 Re7 Nb6 Bc6 Bb2 a1Q Be4 Qa2 Na4 Rd3 Qd7 Rb3 Kf3 e2+ Bc3 e1N+ Ke2 Bd5 Ba1 Rg3 Kd2 Rbb3 Ke2 Rbe3+ Kd1 Re2 Ra8 Bc6 b8Q Bd5 Qh8 Bc6 Qdd8 Re8 Qh5 Rh8 Rb8 Nf3 Bd3 Nfe1 Nf5 Nh4 Qc8 Bhd5 Be4 Nhg2 Qh3 Rh4 Qh8 Ng7 Qh6 Rh5 Qg4 Rh2 Nh4 Rh1 Qc8 Ne6 Qd7+
bN1R2Kb/qR4R1/1Pn1r1QB/n4q1r/2BPP1B1/2n1p1N1/2rN3n/4Q2k b - - 0 1 illegal: No proof kernel
bB2N1bb/3RKQQR/BP3RqP/nQrb1qP1/1pN1nr2/7N/n7/7k b - - 0 1 illegal: No proof kernel
3q2r1/1k1b1nqN/Pn1QPQ2/5NBP/BK2n1rq/2p4Q/1b2B2R/2nR2N1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 Qg5 h6 Kd7 a4 c5 d4 Kc7 h4 f5 e6 b5 h5 b3 a5 f4 Kd2 c4 Kc3 f3 d6+ Kb7 e5 f2 d7 b2 d8Q Nd7 d5 Nb6 d6 Qh4 e7 g5 e8B b4+ Kc2 b3+ Kc3 g4 h7 g3 e6 g2 d7 Nh6 Qf6 Ba3 d8Q Nf7 Ne2 g1Q Nd2 b1Q Rh2 b2 Ng3 Qg6 Qdd4 Qg8 Ba4 Bd7 Be2 f1N Nf5 Ng3 Nf3 Re8 Qg4 b1N+ Kc2 Qf8 Qd6 Nd2 Kc3 Nb3 Qh3 Bb2+ Kb4 c3+ Bf4 Ne4 Rd1 Qg2 Ng1 Nc1 Be3 Qe7 Bh6 Rhf8 h8N Qd8 Ng6 Rh8 Be3 Rh6 Bd2 Rg8 Nf8 Qg7 Nh7 Rg6 Be3 Rg3 Bg5 Rg4 a6+
3B1Nbk/6nP/nKR2r1b/p1P4r/R4PbQ/N3NBRQ/n6q/2q2B1n b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Kd2 Kf7 Kd3 e5 Kc4 a5 b4 g5 h4 Kg7 b6 d5+ Kb5 g3 c4 d4 f6+ Kh7 c6 g4 c7 g2 f7 e4 c5 d3 h5 d2 b7 e3 h6 g3 Qe1 d1B Rh3 e2 Ra4 Qg5 Kb6 Bb3 b5 Ne7 Nf3 g1Q Nh2 g2 Ng4 Na6 b8Q Qh2 Ne3 g1N Rg3 Nh3 Na3 Bg4 c8B Nf5 Bb7 Ng7 Qc8 Rb8 Qb4 e1N Qe6 Ra8 Bf3 Nc2 Bb2 Rd8 Bf6 Rd1 Qbc4 Ncb4 Bd8 Na2 Qf4 Rd3 Qff6 Qf4 Qh4 Rd5 Qc8 Rh5 Qd7 Rg8 Qd3+ Kh8 h7 Qc4 Qd7 Qc1 Qe6 Be7 f8N Bg5 Qh6 Nf4 Qh3 Nd3 Qf6 Bh6 Qfh4 Nb2 Bd5 Nd1 f4 Nf2 Bf3 Nb8 Ka7 Nh1 b6 Bc4 b7 Na6 b8R Bce6 Rb6 Bf7 Ne6 Rf8 Rc6 Bg8 Kb6 Rf6 Nf8
NRQB1N1K/3B2p1/1nr1P1P1/1Q3n1b/rP1QN2b/R1q1k3/5r2/1qR2r1n b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 d5 cxd5 h5 f4 exf4 Qc2 h4 Qh7 Be6 Qxh4 Bf5 Qh7 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 g4 a5 h4 f3 b4+ Kc4 d4 c5 d6 f6 d5 f2 g5 a4 b6 a3 h5 a2 b7 Qa5 h6 Qb6 d7 Ra7 Kf5 Kd4 Kg6 f5+ d6 f4 d8Q c4 e4 f3 e5 c3 e6 c2 d7 Nf6 Nd2 Ne8 Ne2+ Ke3 Nd4 Nd6 Nb5 Qc5 Nc7 Ra4 Bb5 f1N Na8 f2 Rh3+ Ng3 Ne4+ Kf3 Bd2 f1R Rc1 a1Q Qg8 Nf5 h7 Be7 Qa5 Qg1 d8Q Nd7 b8R Nb6 Qd4 Ba6 Qc8 Qc3 Bd7 Rf8 h8N Be2 Kh7 Rf2 Qb5 Bf6 g6 Bh4 Bg5 Qh1 Bd8 Kf4 Rb7 Bh5 Rb8 Qg1 Nf7 Nh1 Ne5 Rf6 Rd1 c1R Kh8 Rcc2 Ra1 Qb1 Re3 Rf7 Re1 Rf1 Ra3 Rcf2 Rc1 Re7 Be8 Rc7 Nd7 Rc6 Nf8 Kf3 Bd7 Kf4 Qd1 Ke3 Qd4+
kR2bQN1/rnB2P2/q1q1RKB1/6pP/1b3P1N/4Bn2/Q1rn3q/3Qq2R b - - 0 1 illegal: No possible last move, all moves rejected
2KR2qN/Q3kP2/2Bq2pQ/1bB1rPNR/bN4Pn/qb6/rR6/n2b1Q2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Bg7 h6 Ng8 hxg7 Qb6 Bg5 Qc7 Bc1 Qd8 f6 d5 Ke2 h5 Kd3 a5 b4 e5 f4 a4 c4 a3 g4 h4 b6 a2 b5 h3 c5 h2 f5 Be6 b7 Nd7 b8R Nh6 g8N Nf7 b6 Ng5 c6 Nf3 c7 Ra3+ Nc3 e4+ Kc2 e3 Kd3 e2 c8Q e1Q b7 Ra8 Rb1 a1Q Nh3 Qg3 Nh6 Qd6 Bg2 Qa5 Be3 Nc5+ Ke2 Bd7 Na2 Nb3 Kd3 Na1 Rb2 Bb5+ Qc4 Rh7 Qc1 Re7 Nf7 Re5 Nh8 Kf8 f7 Ke7 Bg1 Qg8 Rd8 Qab4 b8Q Qb3+ Nc3 Ra2 Qh6 Qba3 Ng5 Ba4 Qbb3 Bb5 Qd1 Ba4 Qc5 Bb3 Be3 Ba4 Qf1 Bb3 Ke2 d3+ Kf2 d2 Qa7+ Kf6 Ke2 d4 Kd3 Ba4 Kc4 d1B Bg1 Bdc2 Be3 d3 Bg1 d2 Bc5 Ng1 Bc6 d1B Qhh3 Nf3 Nd5+ Kg7 Nb4 Kf6 Qb6 Ke7 Qh6 Bb1 Qa5 Bab3+ Kb5 Bd3+ Kb6 Bb5 Kb7 B3a4 Rg1 h1B Kc8 Bg2 Rh1 Bdb3 Rh5 Nh4 Qb1 Bf3 Qf1 Bfd1 Qa7+
2rb3n/bQ3pBN/5rqb/qP1P1Q2/b6K/Q3B2P/2nN1N2/rBR1R2k b - - 0 1 illegal: No possible last move
q1rrb2B/bB2P3/B3r3/1N1bqQ1Q/2RQrn1p/n1P5/N1Pk3K/2R3R1 b - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 g5 hxg5 exf4 Rh2 c4 Rh1 c3 dxc3 Qb6 Nf3 Qa5 Ng1 Qd8 Kf2 Ke7 b4 Ke6 e4 Ke5 g4 h5 Kg2 a5 g6 d5 b6 f5 b5 h4 g7 d4 b7 f3+ Kh3 d3 g5 f4+ Kh2 a4 g6 d2 b6 f2 Qe2 d1B Bh3 f1Q Bd2 a3 Qf3 a2 Na3 Ne7 g8R Nd7 g7 Ng6 Ne2 Bc5 Rg1 Qe1 Rc1 a1R Nb5 R1a4 Be3 Rh6 Qg4 f3 Bg2 Nf4 b8Q+ Rd6 b7 f2 Qh3 f1R Qa7 Nb6 b8Q Nc4 Rh8 Qf8 g8B Be6 Qe8 Rc8 Bh1 Rdd8 Qh5+ Bf5 Bf7 Na3 Bc4 Rb4 Qd7 Ba7 Rhg8 Rf3 R8g4 Qe8 Bc5 Re3 Qf3 Ra4 Bf8 Ra6 Bg7+ Rf6 Bh8 Qg8 Qhh7 Be6 Qdg7 Bd5 Qh5+ Ke6 e5 Re4 Qd3 Qe8 Qf8 Qc6 Qd4 Qa8 Rb1 Rg6 Nc1 Bf3 Bf1 Bc6 Bd3 Be8 Na2 Qe3 Rbc1 Qe2+ Qf2 Kd5 Qff5 Qe3 Be2 Qd4 e6+ Qe5 e7 Re6 Qhf7 Ra4 Q5h5 Ke4 Bf1 Bg2 Qd4+ Kf3 Qff5 Rb4 Qd6 Ke3 Bd3 Kd2 Qd4 Bd5 Bhe4 Bb3 Bb7 Bd5 Rg6 Rb6 Rc6 Ra4 Rc5 Re6 Rc4 Nh3+ Qdf4+ Qe3 Rc6 Bb6 Nc7 Ba7 Bda6 Rd4 Q4e4 Nf4 Nb5 Ra4 Qb4 Qe5 Qc5 Rd4 Qb6 Re4 Rc4 Rd4 Qc5 Re4 Qd4+
1nqR2N1/1b1P3q/PK1kNn2/NQP1R1b1/4r1p1/Q1r3Q1/2B2b2/b1R3Bn b - - 0 1 illegal: No possible last move, all moves rejected
1K1Rb1b1/Rb1P1Q2/PN1pQ2k/Q1n2Nr1/r2P4/1B2qN1n/5b1B/nqR5 b - - 0 1 illegal: No possible last move
6nB/1bp1r3/P1Br1P1Q/1B4qk/rb1qnQ2/2N5/P2N2nK/1r1RRR1Q b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 fxe4 b4 g5 h4 a5 bxa5 Bg4 hxg5 Bc8 g4 Kf7 d4 Kg6 f4 b5 Kf2 e5 Kg3 h5 f5+ Kf7 a6 h4+ Kh2 e3 g6+ Kf6 g7 Kg5 d6 e4 d5 h3 d7 b4 d6 b3 Ne2 b2 Nec3 Bb7 Nd2 b1R Bb5 e2 Bb2 e1R Rf1 e3 Qc1 Qf6 d8Q e2 d7 Bb4 Qf8 Rh4 d8R Qd4 Qd6 Nd7 Qf4+ Kf6 Re8 Rd8 g5+ Kf7 Re5 Nc5 g6+ Kf6 Re3 Rd6 Qd1 Ne4 Qc1 Ne7 g8B Kg7 Bb3 Ng8 Bd5 Kf6 g7 Rg4 Qf2 Kg5 Bdc6 Kh5 Qf4 Rh4 Kg1 h2+ Kh1 Ne7 g8Q Rg4 Qg7 Ng8 Rd3 Rh4 Qg2 Rg4 Qg1 Rh4 Kg2 Rg4+ Kh3 h1Q+ Qgh2 Qhg1 Qh1 Rg7 Re3 Qg5 Kh2 Rd1 Rd3 e1N Re3 Ng2 Ree1 Rh7 Nd5 Qd3 Bh8 Re7 f6 Qe3 Nc3 Qd4 Nc4 Rd2 Rd1 Rdb2 Qce3 Rb3 Nd2 Ra3 Rde1 Rbb3 Rad1 Rb1 Qf5 Ra5 Qef4 Ra4 Qh7+ Nh6 Qg7 Ng8 Qh6+
K1B4q/P1R2R2/1NPR2p1/Bb3qbN/Pb2r3/QbN1r3/3Q1Q2/1r2nn1k b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 b5 Kd5 e5 h4 d6 c4 g6 f4 d3 a4 e4 h6 e3 a6 b4 c5 e2 h5 e1B h7 b3 h6 d2 a7 b2 Ne2 Na6 Kc6 d5 Nbc3 b1Q Bh3 d4 Rf1 d3 Ng3 Be7 Qb3 d1R Bd2 Be6 Kb7 Bc4 c6 Nb4 Qa3 Bb5 Ra2 Nc2 Nh5+ Kf7 Rb2 Bg5 f6 Ne7 f5 Re8 h8R Nd5 h7 Re4 Rg8 Nde3 h8Q Qd4 Qh6 Rae8 Rh8 R8e5 Rc8 Re8 Rf4 Nf1 Ka8 Re3 Rd8 R8e4 Rd6 Qe5 Rb4 Qb2 Rbd4 Rb1 R4d5 Qe6 Re5 Qd7 Re8 Qa1 Rc8 Qe6 Rc7+ Qd7 Bc1 d2 Rf2 d1B Bd2 Nb4 Rf4 Bb3 Rf3 Nc2 Bg4 Ke8 f7+ Ke7 f8N Qb2 f6+ Kf7 Rc8 Qf5 Nd7 Qa1 Rc7 Qb2 Rd5 Ke6 Nb6 Qa1 Rd6+ Ke5 f7 Qb2 Nd1 Qd4 Ba5 Bb4 Nc3 Ne1 Ncd5 Qc3 f8Q Kd4 Rf2 Kd3 Rf4 Qh8 Bh3 Ke2 Bg4+ Rf3 Nc3+ Kf2 Bh3 Kg1 Bg4 Qd5 Rff7 Rfe3 Be6 Qf5 Bc8 Bh4 Qf4 Bg5 Qf2+ Kh1 Qh6 Bf6 Qhf4 Bh4 Qd2 Bg5 Qff2
bQq1N2Q/p3Q2B/1P5P/KNR3bb/b3B3/1Rr2P1r/n4nr1/kq2N1B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 b4 Kf6 c4 Ke5 h4 g5 h6 d5 b6 g4 c5 d3 Kc3 d2 c6 g3 b7 g2 h5 Nf6 b5 d4+ Kb4 d3 h7 Kd4 b6 e5+ Ka5 e4 c7 e3 Qe1 d1B Rh3 e2 Nc3 Ne4 f6 d2 f7 Bh6 f8N Na6 b8Q Ba4 Nd7 d1B Nf6 Bb7 c8B Nb4 Bf5 Na2 Ne8 Bg5 Be3+ Kc4 Bd4 Kb3 Nf3 Kb2 Rc1 g1R Bg2 Qc8 Bc5 Bd5 Nb5 Bb7 Rc4 Ka1 Qb4 Bc6 Ne1 Bd5 Bh1 Rg2 Rb3 Bb7 Be3 Bc6 Qe7 Bd5 Nd3 e1Q+ Rcc3 Qf1 Ne1 Qd3 Rc5 Qb1 Bf4 Bb7 Bh2 Bc6 Bg1 Bd5 Qf4 Rb8 Qfd6 Ba8 Qh2 Rb7 Qb8 Rd7 Bg6 Rd3 h6 Rh3 Bf5 Bh5 Bg6 Rf8 h8Q+ Rc3 Bh7 Rf3 Rb4 Rh3 Rb2 Rgh2 Bf3 Rg2 Rb3 Nd2 Bb7 Ne4 f3 Nf2 Bbe4
N2bn2b/3R1Q1r/2KpB2n/P1Q4r/Q3P3/1NqP1RN1/bb2b2R/B3k2b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 Nf6 cxb5 Ng8 b4 axb4 Kf2 Ke7 Ke3 Ke6 Ke4 c5 h4 g5 a4 f5+ Kd3 Kd5 b6 f4 a5 g4 e6 b3 h6 d6 e7 f3 e8Q g3 b7 f2 h7 g2 h5 b2 h6 Nd7 b8N Ndf6 Rh2 Ra7 Na6 Bg7 Qda4 Qc7 Ra3 Bb7 Qf7+ Ke5 Kc4 Ke4 Kb5+ c4 e3 Ne8 Ne2 g1B Bh3 f1B Be6 Bf6 Ng3+ Kf3 Rb3 c3+ d3 Qc8 Nc7 c2 Na8 Qc3 Rh3 Kf2 Nd2 b1B Bb2 c1B Ba1 Bbg2 e4 Ba2 Rb4 Rd7 Nb3 Bh1 Rc4 Re7 Rc7 Be2 Rd7 Ke1 Rh2 Bc5 Kc6 B1a3 Rf2 Be5 Rf3 Bb6+ Qc4 Bd8 Qc5 Ngf6 Bc4 Bb2 Be6 Rg8 h8Q Ng4 h7 Nh6 Qhf6 Rg5 h8R Rh5 Qf5 Bg7 Qc4 Bf6 Qfc5 Bg7 Qa4 Be5 Qf4 Rh7 Qf7 Bg7 Rg8 Bd4 Rg4 Bg7 Rh4 Bh8 Rh2
2B1rN2/B2b3R/2R1p1bP/8/3QqQrn/1rn1n1rn/RQ2P2P/K1N1B2k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e6 axb5 Ke7 f5 Kd6 f6 Be7 fxe7 Ke5 Qd2 Kd5 Qd1 Kd6 Kd2 Ke5 e8R Ke4 b4 g5 c4 a5 Kc2 d5 Kb2 f5 b6 a4 c5 f4 b5 f3 h6 d3 b7 g4 b6 g3 c6 d2 c7 a3+ Ka2 g2 Re7 f2 Qc2+ Ke3 Qb2 d4 Qc2 d3 Nf3 g1N Qb3 Qd4 Qc2 Ra4 Rg7 Nf6 Qc4 Qe4 Bh3 f1N Ne5 Kf2 Ng6 d1B Bg2 d2 Qb4 Nbd7 b8Q Re8 b7 Bc2 Qb2 d1R Bd2 Nf8 Nc3 Ne3 Rh7 Bd7 c8Q Nh3 Qd8 Rb1 Rc1 Nfd5 Be1+ Kg1 Qf4 Rc4 b8B Ra4 Nh8 Ng6 Ba7 Nh4 Ng6 Rd4 Nf8 Bd3 Qd2 Rb3 Qb2 Rdb4 Rc2 Ra4 Rac1 Rab4 Ka1 a2 Qdf6 Ra4 Qd4 Raa3 Nd1 Nc3 Nf2 Ra4 Rd2 Bb1 Nd3 Rc4 Bf1 Kh1 Rcc2 Rc5 Nc1 Rg5 Qf2 Rg3 Qf4 Na4 Rc6 Nc3 Qb6 Qf3 Qbd4 Bg6 Rc2 Qe4 Bg2+ Kg1 Qdf6 Na4 Qb1 Bf7 R6c3 Qd4 Qc7 Nef5 Bb7 Bg6 Bc8 Ne3 Qb8 Qd5 Rc6 Nc3 Rd2 Kh1 Qb4 Ra3 Kb2 Ra4 Qc5 Rag4 Qf4 a1R Qcd4 Ra3 Qc2 Rb3+ Ka1 Qe4 Qb1 Na4 Ra2 Nc3 Qb2
1bn3Br/1Q2R1p1/1B2P2Q/2qr2rb/2N1PrbP/Q6k/4nN2/RKRb1N2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 Ke6 h4 Kf5 e4+ Kf4 c4 Kg3 Kc2 d5 h6 a5 b6 f5 b7 a4 c5 a3 b5 f4 c6 f3 c7 a2 b6 f2 h7 Qg5 Nh3 Bg4 c8N Ne7 Be3 Ra5 Nd2 Nbc6 Nd6 Nc8 Bc4 f1R b8Q Rf4 b7 d3+ Kb2 d4 Nf1+ Kg2 Nf2 d2 Nd3 Rd5 Qb3 d1B Qa3 Qh5 Rc1 a1R Bf2 Ra2+ Kb1 Re2 Rg1+ Kh3 Qba7 Re3 b8R Rg3 Rb7 Qg5 Be3 Bh5 Rc7 Bdg4 Qb7 Qf5 Ba2 Rg2 Nc4 Bd6 Re7 Bb8 Nb4 d3 Bb6 Nd4 Bb3 d2 Nd3 Rhd8 h8Q d1B Qh6 Rh8 Nd6 Ra5 Bg8 Ne2 e6 Rd5 Nc4 Qe5 Qa4 Qd4 Qa3 Qc5 Ng3 Rff5 Ka1 Rgf2 Rb1 Ba4 Rgc1 R2f3 Nf1 R3f4 Kb2 Bc2 Ra1 Bd1 Kb1 Rg5 Nf2+
1Q1nBn1R/4kP2/b1rP3B/nb1B4/P1N1Q2N/q1p2R1N/rn3bb1/1K5Q b - - 0 1 illegal: No possible last move, all moves rejected
nQ1RKNN1/2prB1rr/3r4/1Bkbn3/3Pr3/n1P1PR2/2RB1Q2/2Q1bb2 b - - 0 1 legal: proof: g4 b5 a4 h5 gxh5 d5 axb5 d4 e3 dxe3 d3 e2 Kd2 Qd4 Qe1 Qd6 Qd1 Qd8 Ke3 e1N Ra3 e5 Qd2 e4 Qd1 Qd4+ Ke2 e3 Ra1 Ng2 Kf3 e2 Kg3 Qe3+ fxe3 Ne1 Kf2 Bd7 Nd2 Be6 Nb1 Bc8 Kg3 Ke7 Kh4 Kd6 Kg5 a5 h4 f5 Kg6 f4 Kf7 g5 b4 f3 b6 a4 c3 a3 h6 g4 b5 g3 h7 f2 b7 g2 h5 a2 h6 Kc5 b6 Be6+ Ke8 Nc2 Nf3 g1R Nh4 e1R Rh2 Bd5 Bg2 f1B Bd2 Bd6 Qc1 Kb5 Ng6 Ra4 Nf8 Nc6 b8R Nge7 b7 Bb3 Rd8 Re4 b8Q+ Kc5 Bh1 Rhg8 h8Q Ne5 h7 Nc8 Qf6 R1g7 h8B Bd5 Qf2 Rd7 Bf6 Na3 Be7 Nb6 Rh3 Rg7 Rf3 Na8 Bg2 Bc6 Bh3 Rd1 Be6 Rh7 Bc4 Bd5 Bb5 Rg7 Be1 Rh7 Nd2 Rg7 Rb1 a1R Rb2 Rb1 Rc2 Rb2 Bc4 Rb6 Bb5 Ra6 Nc4 Rc6 Bd2 Re1 Na5 Re2 Qfe1 Rh2 Qf2 Ra6 Nc6 Rhh7 Bf6 Rb6 Ne7 Ra6 Ng8 Be7 Nh6 Rad6 Bh4 Bg5 Ng8 Bf4 Be7 Bg3 Qh2 Be1 Qe2 Nf7 Qf2 Ne5 d4+
5k1Q/q2R1r2/bqrqRP1B/5K2/3q1nN1/bQpBPq1R/Q1P1Bq2/1N6 b - - 0 1 illegal: No possible last move
qr1r2b1/2R2R1R/4r2B/1nN1nKpP/3QPQP1/5B2/NQq5/Nnr2n1k b - - 0 1 illegal: No proof kernel
2r4r/qNr1nrQ1/3b2R1/1qqk1bPp/3P2Q1/1RB2B2/B6P/qRNKN3 b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 e3 d5 Ra6 d3 Ra4 d2+ Ke2 d4 Kf2 d3 Ra3 Nc6 Ra1 Nd4 exd4 Bh6 Qg4 Bg7 Qd1 Bf8 b4 Kd7 c4 Kd6 g4 h5 g6 e5 g7 a5 c5+ Kd5 g5 f5 b6 a4 b7 a3 b8R a2 c6 e4 c7 f4 b5 f3 b6 Bc5 b7 Nh6 Ne2 Bf5 c8N Qd6 Bb2 Ng8 Nc1 Ne7 Be2 e3+ Kf1 f2 Bc3 Qc7 Na3 Bd6 Nc2 Qc5 Ne1 Qa7 Rb1 a1Q Rb6 Q1a6 Rb3 Qb5 g8B+ Kc6 Qc2 d1Q Qd2 Qc2 Qd1 d2 Rg1 Bc5 Nd6 Ba3 Rd8 Rc8 b8Q Bc5 Nb7 Bd6 Rf8 Rc7 Rf7 Kd5 Qf8 Rc8 Qg7 Rc7 Bb2 Qcc5 Bc3 Rc8 Bh7 Rc7 Rf6 Rcc8 Rg6 Rc7 Qc2 d1R Rh1 Rd2 Qd1 Rc2 Bg8+ Kc6 Bd3 Rc8 Qg4 e2+ Kg2 Rc7 Kf3 f1R+ Ke3 Be6 Rg1 Kd5 Rh1 Rf7 Rg1 Rb2 Rh1 Rb1 Kd2 Bf5 Na2 Bc8 Bb2 Bf5 Rb4 Rc8 Nf3 Qc7 Rg1 Rc1 Rf1 Rc5 Bc3 e1Q+ Kc2 Qa1 Rfb1 Qcb6 Ne1 Kc6 Nc1 Rff8 Ba2 Rf7 R4b3 Kd5 Kd1 R5c7 Be2 Q6c5 Bf3+
1Bb1K3/1nQ1P2k/1n5N/1rnrR2P/1N5b/bQr1pR2/p1BQ1P2/2NR2q1 b - - 0 1 illegal: No proof kernel
6bK/1qnRp1n1/1Q1B3P/PB2N1rP/Q2R2r1/pbk1br1n/B2NN3/4Q3 b - - 0 1 illegal: No proof kernel
1N2k2r/4prr1/3bKP2/n1Q3b1/2N1NRpB/n2P1BPQ/RB1Qn2b/q7 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Bf5 h5 Bg6 hxg6 Qd7 Ra4 Qc8 Ra1 Qd8 Ke2 h5 Ke3 c5 f4 a5 b4 c4 Kd4 h4 Ke5 a4 d6 a3 d3 g4 f5 e3 b6 c3 g7 a2 b5 e2 f6 e1B b7 c2 b6 h3 Bb2 c1N Nc3 h2 Ke6 Nc6 b8B Bh4 b7 Ne2 Ne4 Qa5 Nf3 Bg5 Nfd2 Nh6 g8Q Nf5 Qh7 Bfh6 Nc4 Ne3 Qd2 Nc2 g3 Na3 Bg2 Qa7 Bf3 Na5 Rhf1 h1R Qf5 Rf8 Bc7 Rf7 b8N Bf4 Qh7 Bhg5 Qh3 Be3 Bb6 Bg1 Be3 Bh2 Rf2 Qa6 Raf1 a1B Rg2 Bh6 Bg5 Rg7 Bh4 Bg5 Bc1 Be5 Bb2 Qa7 Rgf2 Qd4 Ra1 Qc3 Ra2 Qc1 Rf1 Qa1 d7+ Kf8 Kf5 Bd6 d8Q+ Kf7 Qc7 Ke8 Qc6+ Kf7 Qc5 Bh6 Qg2 Bg1 Bg5 Qc1 Na6 Rf8 Nb8 Ke8 Ke6 Rff7 Qh2 Qb1 Bg2 Qa1 Qh5 Rh4 Rf4 Bh2 Bf3 Rh3 Qg1 Rh4 Qg2 Nb7 Qh3 Na5 Qg6 Rh5 Bh4 Bg5 Qf5 Rh8 Qc5
n1Bbb3/2QP1NbK/N1q1Pr1p/3RPQN1/1n5p/R1B1rrn1/4R1k1/Q7 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Ke7 Kf3 a5 Kf4 f5 Kg5 c5 e4 a4 d4 a3 b4 a2 g4 c4 b6 c3 b5 h6+ Kg6 c2 e6 Kd6 e5+ Ke7 g5 f4 d6+ Ke8 d5 f3 b7 f2 b6 Nf6 Bb2 c1B Nd2 Na6 b8N Qc7 b7 Qc6 d7+ Kd8 Nh3 Kc7 d8R Bd7 Bc3 Nb4 Nf3 Ra3 Ba6 Bg7 Re1 f1N d6+ Kb6 Qc2 Nfd5 Qf5 Rf8 Kh7 Kc5 g6 Ng3 Nhg5 Nb6 Nf7 Kd5 N3g5 Be8 Rd7 Na8 Rd8 Bf6 g7 Bd2 g8Q Bg7 d7 Rb3 Rad1 a1R Rc8 Ra2 Ra1 Rc2 Ra3 Be3 Rc7 Bb6 Rc8 Bd8 Qh8 Qb5 Rc6 Rf2 Rd6+ Kc4 Rd5 Rf3 Nc6 Re3 b8Q Rf3 Bc8 Qb6 Bb2 Rbe3 Qc7 Qb5 Nb8+ Qc6 Qb1 Rf6 Bc3 Rff3 Qa1 Rf6 Rb5 Kd3 Na6 Rff3 Nd6 R8f6 Ndf7 Be7 Qf8 Bd8 Rh1 Ke2 Rd5 Kf2 Re1 Kg2 Nd6 Rg6 Qf5 Rf6 Ndf7 Qa4 Qc5 Qb5 Qc7 Qc6 Re2+
2n1NQR1/1n1p4/Nk2r1PB/b1Rn1Q1N/2KB1b2/2R1r1Pp/5P2/q2B2rb b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 h5 Kd3 e5 b4 a5 c4 a4 g3 a3 f6 a2 g6 h4 b6 h3 b5 Rh7 b7 Rh4 c5 e4+ Kc4 d3 b6 e3+ Qg4 d2 c6 d1N c7 e2 Na3 e1B Bh6 Ne7 Nb5 Ra3 Rc1 a1R Be2 Nbc6 b8B Nc3 b7 Ncd5 Ba7 Ba5 b8N Re3 Na6 Bb7 Bd4 Nc8 Rc3 Bd6 Bd1 Bf4 f7+ Ke7 Qf3 Qh8 Nd6 Nd8 Ne2 Bc6 f8R Nb7 Ne8 Rh5 Rg8 Rhe5 Qg4 Re6 Qf5 Qe5 Ba4 Rg1 Bd1 Na7 c8Q Qh8 Qc7 Nc8 Qd6+ Kd8 Qdf8 Nde7 Rh2 Bh1 Rg2 Nd5 Rh2 Bg5 Nf4 Qe5 Nh5 Bf4 Bg4 Qd6 Rg2 Qa3 Bd1 Qa1 Ba4 Rge1 Rg1 Rc1 Re1 Rb1 Re2 Rg1 Bd1 Qa2+ Rb3 Qb1 Rb5 Qb2 Rc2 Qa1 Nb8 Bg2 Rc3 Bh1 Nef6+ Kc7 Rc5+ Kb6 Ne8 Bg2 Na6 Be4 Bf6 Bh1 Bd4
3K2N1/2NR4/rQ2R1q1/1bppbPR1/1n2Q1qr/n1P2PBk/B4qN1/1bB5 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 e5 dxe5 g5 h4 gxh4 a4 Kf7 axb5 Ke8 Ke2 Ke7 Kf3 d5 Kg4 c5 Kg5 a5 g4 h5 b4 a4 c3 h3 e6 h4 b6 a3 b5 h2 b7 a2 b6 h3 Qd3 Bd7 Qe4 Qc8 Ne2 Na6 b8B Nc7 b7 Nb5 Nf4 Rh4 Ng2 Na3 Bc4 Bb5 Rg1 h1B Bg3 h2 b8Q Ra6 Qb6 Bg7 Kg6 Be5 g5 Qc6 Bb3 Kd6 Kf7 Ne7 g6 Ra8 g7 Ra6 Nf4 Bg2 g8N h1Q Bc4 Qh2 f3 Bf1 Kf8 Qf2 Ng2 Bd3 Bb3 Nc8 e7 Na7 e8R Bc2 Nd2 Bcd3 Rb1 a1Q Ba2 Bc2 Rb4 Bb1 Nb3 Qab2 Kf7 Qbd2 Kf8 Qg5 Nd4 Qh5 Ne6 Qg4 Qb7 Qb6 Nc7 Nc6 Rb2 Nb4 Re6+ Kd7 Re2 Kd8 Re7 Qbg6 Re6 Kd7 Re7+ Kd6 Rf7 B5d3 Ke8 Bb5+ Kd8 Bf4 Bh2 Ra4 Ne1 Ra6 Qe8 Qh3 Rg5 Qg4 Ng2 Bg3 Qe3 Bf4 Qd3 Bg3 Ree7 Bf4 Rd7+ Ke5 Qb6 Bg3 Rf6 Bf4 Ne3 Bg3 Re6+ Kf4 Bg1 Bh2 Ng2+ Kg3 Qe2 Kh3 Qe4 Bf4 Bh2 Be5 Bg3
qR4N1/2r5/n5N1/KPrN1B1R/1Q1p2pQ/PqbbPrR1/3B4/1k2qnB1 b - - 0 1 illegal: No proof kernel
1BKN3k/1r1R1Q2/Nq1qQ2n/pp4P1/3P1rP1/1b1n1R2/N1RB1n2/2b1q2B b - - 0 1 illegal: No proof kernel
b1bR2N1/1R6/Qr4qp/R1Pr2p1/3PB3/1n1KQ2q/1QBP1k1N/B1bn2n1 b - - 0 1 illegal: No possible last move
1rr1R3/1NRq2b1/1Q1bQpB1/4kbq1/n4N2/BPPPN3/2B2p1K/2n1R1r1 b - - 0 1 illegal: No possible last move, all moves rejected
1NK3kQ/RQ2RbB1/1B2Rpnq/PB6/1P5q/rrNQ4/p4Pn1/q1b3n1 b - - 0 1 illegal: No possible last move
qb2qn2/4r3/N2QpbR1/R1PRnbP1/4PK1Q/pB1Q2N1/2q2BNk/r7 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 c5 gxf5 cxd4 h3 g4 h4 Qb6 Ra3 Qg6 Ra1 Qg5 hxg5 Bh6 Na3 Bg7 Nb1 Bf8 Kd2 Kf7 f4 d5 b4 h5 c4 a5 c5 a4 e3 h4 b6 g3 b7 g2 f6 Ke6 f5+ Ke5 b5 d3 f7 h3 f6 d4 b6 h2 Nc3 Bg7 f8R Nd7 b8N Nh6 f7 Ng4 b7 Rh7 Ne4 Bf6 Rg8 Nf8 Ng3 Bf5 N1e2 g1B Na6 e6 Nf4 Bf2 Rg1 h1Q Rg6 Qc6 e4 Qe8 Ng2 Rg7 Ne1 Kf4 b8Q+ Ne5 Qd6 Ra7 Rh1 Bg1 Qc2 Bh2 Ng2+ Kg4 Be2+ Kh3 Bd1 Qa8 Qc4 Rh7 Bb3 a3 Rb1 Re7 Rd1 Rh5 Bc2 Rh4 Rb5 Rf4 Ra5 Rf1 Bb2 Qe8 Bb3 Rh1 Kc1 d2+ Kc2 d3+ Kc3 Nfd7 Kd4 Nf8 Ke3 Rg1 Bd4 Rf1 Rb1 d1Q Rb2 d2 Qd3 Rh1 Kf4 Qc2 Bf2 d1Q Rb1 Qh5 Rd1 Qh8 Rd2 Ra1 Rd1 Nfd7 f8Q Qa8 Qd8 Qe8 Qe2 Nf8 Rd5 Bg1 Qg4+ Kh2 Be1 Bd4 Bf2 Bc3 Ra4 Ba5 Q8d7 Bd8 Ra5 Bc7 Qb5 Bb8 Qc4 Bg7 Qd3 Bf6 Qh4+
1Rn4b/1rB5/2Npk2B/PNqq4/nR1n2Rp/1qrP1Q1N/1P6/1QB2bK1 b - - 0 1 illegal: No proof kernel
1k6/Qq2Nb2/2P3pn/2rq1qN1/B4PpR/r3BB1P/R1n1K3/NQ1r2bQ b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 c4 e5 f4 a5 b4 d5 c6 a4 f6 d4 f7+ Ke7 b6 Kd6 b7 Kc7 c5 e4 b5 a3 Ra2 d3 Nf3 e3 Be2 Qd5 Ng5 Nh6 Bf3 e2 Nd2 Na6 Nb3 Be6 Na1 Kb8 Be3 d2+ Kf2 Be7 f8N Bf7 Ng6 Rc8 Qf1 Bf6 Ne7 d1R Qh3 g6 c7+ Ka7 Qf1 Bd4 Qe1 Nb4 b6+ Ka6 b8Q Nc2 b7 Qf5 Qg1 e1Q+ Kg2 Qa5 Kf2 Qd5 Ke2 Ra7 Qa8 Qb6 b8Q Qbb7 Bc1 Bf2 Be3 Qf5 Qf1 Qbd5 Qb1 Bg1 Rb2 a2 c6 Rb8 c8B+ Rb7 Bd7 Rb5 Be6 Rc5 Qh3 Qd8 Bb3 Qdd5 Qh4 Kb6 Qe1 Ra3 Ba4+ Kc7 Qf1 Qb3 Qa7+ Qb7 Nb3 a1Q Ra2 Qae5 Na1 Qee6 Qg2 Bf2 Rg1 Qee4 Qh1 Qed5 Rg3 Bg1 Rh3 Qb3 Rh4 Qbd5 Qa6 Kb8 h3 Qb2 Qa5 Qb7 Qa7+
n1q2rB1/1q1nQ1K1/2PQR1p1/p4kBb/P2P4/1b2nN2/1bR1QN2/1N1r2R1 b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 h5 b4 d5 cxd5 Nd7 bxc5 Nb8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kd4 b5 h4 a5 f4 e6 a4 g6 c6 g3 h5 b4 d6 g2 d7 b3 h6 b2 h7 Ra6 Nf3 Ne7 Ra2 Nd5 Rg1 Ba3 Qe2 Rf8 h8N Nc7 Nf7 Ra7 N7g5 Na8 Nh3 e5+ Ke4 Qe8 d8R Nd7 Nf2 Rb7 Kd5 e4 d4 e3 Bd2 Qe7 Re8 Rb3 Bc1 Rd3 Bd2 Qd8 Bc1 Rd1 Re6+ Kf7 f6 Qe8 Qd3 e2 f5 e1N Bg5 Nc2 Qe2 Ne3+ Ke4 Ba6 Kf4 Qc8 Ke4 Kg8 f7+ Kg7 Kf4 Bc4 Ke4 Bb3 f6+ Kh7 Qc2 Qb7 Bc4 Qc8 Qe2 Qb7 Nc3 b1B+ Rc2 Bb2 Bd5 B1a2 Nb1 Bc4 Kf4 Bab3 Ke4 Bd3+ Kf4 Bf5 Bc4 Bg4 Ke4 Rd8 f8Q Bh5 Qd6 Rf8 f7 Kg7 Qe7 Ndb6 Ke5 Qc8 Rh1 g1Q Bd5 Qe1 Rg1 Qb4 Qd6 Kh7 Kf6 Nd7+ Ke7 Qbb7 Bc4 Rg8 f8Q Rh8 Qf6 Re8+ Kf7 Rh8 Bh4 Kh6 Qfe7 Bg4 Re4 Kh5 Kg7 Rf8 Ne1 Bf3 Bg8 Bg4 Re6 Bf3 Ne4 Bg4 Bg5 Bf3 Rf1 Kg4 Nf2+ Kf5 Rg1 Bh5 Nf3
7K/NbBb2Rn/1PQN2B1/prB3kp/Q4rPN/1r2q2q/Rn5P/bQ6 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 Ba6 fxg5 Bc8 Kf2 a5 Ke3 h5 Kf4 f5 Ke5 Kf7 d4 Kg6 c4 f4 d5 f3 d6 e3 b6 f2 c6 e6 c7 e2 d7 e1R+ Be3 Rh7 c5 Bh6 c6 Bb7 c8N Rf7 c7 Nf6 Qa4 Na6 Nf3 Nc5 Na3 Rb1 Nc4 Rb5 N4d6 Nh7 Na7 Rf4 Ra2 Qc8 d8B Rb8 Be2 f1B Rg1 Rb3 g3 Bh3 Bd3+ Bf5 Bb1 Qd7 c8Q Bg7+ Bf6 Rb5 Qc6 Rg8 Bf2 Bh8 Bd4 Rg7 Bd8 Qc8 Bc7 Rb3 Qc4 Na4 Bc5 Nb2 Q4a4 Qd7 Ndc8 Qd3 Bc2 Qf1 Be4 Qh3 Nh4+ Kf7 Nd6+ Ke7 Kd4 e5+ Kd5 Bg4 g6 Kf6 Bc2 Rf7 g7 e4 g8Q e3 Bg6 e2 Qg7+ Kg5 Ke5 R7f5+ Ke6 Nd1 Qa1 Nb2 Qb1 Rd5+ Ke7 Bd7 Rg2 Bf6+ Kf7 e1Q Kg8 Qe3 Rg1 Nc4 Rgg2 Ba1 Rg1 Nb2 Kh8 Nf6 g4 Rdf5 Rc1 Nh7 Rc4 Rd5 Re4 Rdf5 Re7 Rd5 Rg7 Re5 Bd4 Reb5 Bc5
1RqN3r/5R2/1p6/PPn1Nnp1/1Q1Bq2n/K2b2k1/QPbQRB2/3Brb2 b - - 0 1 illegal: No proof kernel
1NB3b1/3r3p/2k1nRQP/n2b2P1/Rq2p1qR/B4n1r/NQP1KN1b/4Q3 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 Ba6 fxg5 Bc8 d4 Kd7 g4 f5 h4 a5 b6 e5 g6 f4 h5 e3 b7 a4 g5 a3 h6 a2 d5 e2 d6 f3 g7 e4 Bb2 f2+ Kd2 e1N Bd3 f1B Be2 Ne7 g8Q Qa5+ Nc3 Nf5 Ba6 Bc4 Qg6 Nd4 Rh4 Qb4 Ba3 Bg8 Nh3 Nbc6 Nf2 Ne6 Ke2 Nf3 Qe1 Na5 b8Q Kc6 d7 Bb7 d8N+ Kd7 Qe5 Bd5 Nc6 Bd6 Bc8+ Kc7 Qd4 Bh2 Nb8 Ra6 c6 Kd6 Rc1 a1Q c7 Rc6 Na2 Rc3 Rd1 Qc1 Qdf6 Qf4 Ra1 Rd3 Qb2 Qg4 Ba6 Rb3 c8R Rc3 Rf8 Kc7 Nd7 Kc6 Bc8 Nd4+ Kf1 Rh3 Rf6 Nf3 Ke2 Bf7 Rd1 Rd8 Rd4 Bg8 Rc4+ Qc5 Ra4 Qb4 Nc5 Rd6 Na6 Rd7 Nb8+
2k3Bq/bR3nP1/p3B3/1rQnqp2/N4NN1/K2Qb1B1/Pr1PR1r1/2n3Q1 b - - 0 1 illegal: No possible last move
R2n3N/r3r1pR/bQNb4/1B1Nq1Pn/1pK4B/2nR1Q2/k1B1P2P/3qb3 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 h5 Qc2 d5 cxd5 e5 fxe5 h4 Qf5 h3 Qxh3 Ne7 Qh7 Ng8 g4 Kd7 d4 f5 Kd2 b5 Kd3 c5 a4 b3 e6+ Kd6 e7 b2 e8B f4 a5 f3 a6 b4 a7 f2 Ra5 Qf6 Nf3 Nc6 Kc4 Qf7 Bh3 f1Q Qf5 Qd1 Ng5 Nb8 Nc3 b1N Bb5 Qd7 Qf3 Qe8 Bg2 Nc6 Nf7+ Kd7 d6 Ke6 d7 Nd8 Bh3 Nf6 Bg5 Bd6 Nd5 Nc3 Bh4 Nh5 Rg1 Ba6 Rg3 Rf8 Nh8 Rf7 Bg2 Re7 g5 Qg6 Rh3 Qe4 Ra3 Qe5 Rb3 Rc8 a8R Rc7 Qf2 Rb7 Be4 Ra7 Bc2 Nb1 Rbd3 Nc3 Kb3 c4+ Kb2 Nb1 Qf3 c3+ Kb3 Ng3 Kc4 Nh5 Ba4 c2 Bb3 c1B Bc2 Nf7 d8Q Bd2 Qb6 Nc3 Rc8 Be1 Ra8 Nd8 Nf4+ Kf5 d5 Bc7 d6 Bb8 d7 Bd6 Qf1 Ke4 Nd5 Nf7 d8N Nf4 Nc6 Nd8 Bg3 Rac7 Rh4 Ra7 Rh7 Nh5 Nf4 Nb1 Bh4 Nc3 Rd4+ Ke3 Re4+ Kd2 Nd5 Kc1 Qf3 Kb2 Re3 Ka2 Rd3
1BN4k/q4prb/b1BNrPR1/3BnPQ1/2R1p2K/Q2b4/q1n2QP1/3rN3 b - - 0 1 legal: proof: h4 c5 a4 b5 axb5 g5 hxg5 Qc7 f4 Bh6 d4 Bg7 e3 Be5 f5 Bf4 exf4 cxd4 Nh3 Qb6 Ng1 Qd8 Kf2 Kf8 Kg3 Kg7 c4 e5 b4 a5 g6 d5 b6 h5 b7 a4 b5 d3 b6 d2 c5 d4 c6 d3 c7 a3 Rh4 a2 Qb3 d1B Nd2 Nf6 Nc4 d2 Qa3 Qd5 Nd6 Nfd7 Bb5 Be2 Bc6 d1B Nf3 Na6 b8Q Rh6 b7 Bd3 Qa7 Kh8 b8Q Nb4 Ne1 B1c2 Qb5 Ba6 Qf2 Rg8 c8N Rg7 Be3 Bb1 Ba7 Nc2 Bb8 Qd4 Rg4 h4+ Kh3 Qa7 f6 Rh5 Rg3 Rf5 Kg4 h3 Kh4 h2 Qd5 Nd4 Rg4 Bbc2 Rb1 a1Q Rb4 Qa2 Rc4 Bb1 Qdc5 Nc2 Qce3 Rg5 Qed2 Rg8 Qdc1 Re8 Qce3 Re6 g7+ Kh7 g8B+ Kh8 Bh7 Rg7 Bhe4 h1R+ Qh3 Rg1 Bed5 Bh7 f5 e4 Rg6 Ne5 Qg4 Rf1 Nd3 Rd1 Qgg3 Nb4 Ne1 Bd3 Qgf4 Nc2 Qg5
3knQ2/4bpP1/1pqNQ1r1/q7/Pnb2BNR/PBqr4/3B2N1/Rb2Q2K b - - 0 1 legal: proof: h4 d5 f4 a5 c4 g5 cxd5 e5 hxg5 exf4 b3 a4 bxa4 Ra5 Rh6 Ra6 Rh1 Ra8 Kf2 h5 e4 c5 d4 b6 g4 h4 Kg2 c4 d6 c3 g6 c2 g7 Bd7 a3 Ra5 d5 Nf6 g8N Bc6 g5 Qe7 g6 Rc5 d7+ Kd8 e5 Rh5 e6 Kc7 d8B+ Kc8 g7 Ne8 Bc4 Na6 Qe1 Rh6 Bb3 Qa7 e7 Nb4 Nh3 Rc3 Bc7 Rd3 Nf6 Rg6+ Ng4 Qa5 Bd2 c1Q Nc3 f3+ Kg1 Qc2 d6 Be4 Nb5 Qc3 Nf4 h3 Ng2 f2+ Kh2 f1B d7+ Kb7 d8Q Bf5 Qd5+ Kc8 Kg1 Be4 Bcf4 h2+ Kf2 Be2 Nd6+ Kd7 Qe6+ Kc7 Rg1 h1Q Rf1 Rh3 Rg1 Bb1 Rf1 Rd3 Rg1 Qhh5 Rh1 Qhd5 Kg1 Qdc6 Rh4 Nf6 e8Q Be7 Nf5+ Rd6 Ne5 Bc4 Kh1 Rd3 Qf8 Ne8 Ng4+ Kd8 Nd6
bq4q1/k1N1P2B/3B1n1Q/P1b1KN2/p2R1N1b/1qp3r1/2P1nQ2/Rr2R1Q1 b - - 0 1 illegal: No proof kernel
8/2K1P1Q1/1NPN1B1n/r2Rb1R1/n1Q2kpr/1qRb2rP/q2N1p2/3q2QB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 e4 d5 b4 a5 c4 d3 h6 a4 c5 d4 c6 a3 h7 a2 h3 g6 b6 d2 b5 d3 b7 Nd7 b8R Nb6 Bb2 Bg7 Ne2 Nf6 Nec3 Qd4 Na4 Qc3 Rg1 Qa5 Bg2 Qc3 Bh1 Ng8 Rg5 Nh6 Qg1 d1R Nd2 Qc5 Rc1 a1Q Rc3 Bd7 Rd8 Qa2 Ba1 Be8 Rd5 Qca3 Bb2 Rg8 h8Q Ra5 Qh7 Bf6 Qg7 Rb1 Ba1 Rb4 Bb2 Q3b3 Ba1 Nd7 b6 Nc5 b7 Bd7 Nb6 Na4 b8Q Rd4 Nf1 d2 Qc7 d1Q Nd2 Rb4 Qc8 Rd4 Qa6 Bc8 Qb5 Ba6 Qb4 Be2 Qc4 Bd3 Qh8 Ke7 e6 Bg7 Bb2 Kf6 e7 Ke6 e8N Be5+ Ke3 Rg7 Nd6 Rg8 Qg7 f4+ Kf2 f3 Ke3 f2 Ba1 Bh2 e5 Rg4 Bb2 Rg3+ Kd4 Rh8 Rh5 g5 Ba1 g4 Rg5 Nf7 Bb2 Ke7 e6 Rh4 Qg8 Kf6 e7 Ke6 Qg7 Nh6 Rc2 Be2 Ke4 Bf1 Bf6 Be2 Kf4 Bd3 Rc3 Re3+ Qg3 Be2 Nb5 Rf3+ Ke4 Bd3+ Kd4 Re3 Qg1 Bf4 Na8 Rg3 Nb6 Nb2 Kc5 Bb8 Nc8 Be5 Kb6 Na4+ Kb7 Qf1 Nb6 Qfd1 Rg6 Kf5 Kc8 Be4 Rg5+ Kf4 Kd7 Qbb2 Nd6 Qbb3 Qa6 Bc2 Kc7 Bd3 Qc4+
b7/1R2PQn1/2PrQB2/1qqB1k2/2Np1Nb1/bp1KR2n/N1r4P/3QB2r b - - 0 1 illegal: No possible last move, all moves rejected
2k5/1NQ1PBPN/1p1Pn3/1RBq3b/1Bp4K/nq1Q2R1/1b1rQ1b1/1q1r2R1 b - - 0 1 illegal: No possible last move, all moves rejected
1K1R2bn/3QpBn1/1P5p/2PB4/1rN1r2k/NQ1qPbr1/R3q1qQ/2R1B3 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Nh6 h4 Qf4 g6 Nc6 h5 Qc7 g5 Ng8 h6 Bg7 hxg7 Nb8 Bg2 Qb6 Bf1 Qd8 Kf2 d5 Kf3 f5 Kf4 a5 Ke5 d3 b4 d4 c4 a4 c5 d2 b6 f4 b7 a3 e3 h6 b5 a2 b6 f3 Ne2 f2 Rh3 d3 Ng3 Nd7+ Kd5 Ngf6+ Kc6 Nh5 g8Q+ Nf8 b8R Ra4 g7 Re4 g6 Be6 Bg2 f1Q Kb7 Kd7 Qg4 d1B Nf5 d2 Na3 Bf3 Rh2 d1Q Bd2 Qde2 Rc1 a1R Be1 Rb1 Nd6 Rbb4 Ndc4 Qg1 Bh1 Qgg2 Rc8 Rh7 Kb8 Ke8 Qf7+ Kd7 g8B Ng7 Qff5 Rh8 Bf7 Rg8 Qh4 Rh8 Qf2 Rg8 Qe5 Bd5 Qg1 Be6 Qd4+ Bd5 Be8+ Ke6 Bf7+ Kf5 Qd2 Qd7 Rd8 Kg4 Qd1 Be6 Qa4 Qdd3 Qd7 Nf5 g7 Ng6 Bg3 Nh8 Be1 Rf8 g8Q+ Ng7 Be8 Rff4 Bf7 Kg5 Kb7 Rg4 Kb8 Qgf1 Rg2 Rg3 Rf2 Kh4 Bg2 Qed1 Ra2 Qd1e2 Bh3 Bd5 Bhe6 Bb7 Bd5 Qfg2 Qa4 Bc8 Qb3 Bf5 Qe8 Bh7 Qd7 Bg8 Qh2+
4N2Q/3pRr1N/1P1k1nQK/P2PN1BQ/p1q2bb1/1RR1rq2/2bn1B1q/8 b - - 0 1 illegal: No proof kernel
k2n1B2/2P3br/1K6/3qP1Nn/R1NQrRB1/p1nb1PQ1/3p1qN1/2Rr3Q b - - 0 1 illegal: No proof kernel
3Q2N1/nPNBbkRb/6qr/1r5p/QnP1q2p/1bB3P1/NK1B3R/1R2r3 b - - 0 1 illegal: No possible last move
2Q1rQq1/1P3b1r/BqPb1p2/Rp1PB3/5rn1/3NQ3/1Bk1Kn1q/1R3N1R b - - 0 1 illegal: No proof kernel
2N2R2/1PB1KPqr/1pr2n1B/P2B1b2/5Q2/nRbRp1q1/N4Q1k/1n3Qr1 b - - 0 1 illegal: No proof kernel
4k3/P2NB1P1/B1Q1q1Pp/2rQBbr1/5N1n/p1R3r1/K1nq1n1N/3Q1Rb1 b - - 0 1 illegal: No proof kernel
r1q1q3/pp2QPN1/q1bR3P/Q4B2/3B1P1R/N4r2/N3R2b/kBnnK2n b - - 0 1 illegal: No proof kernel
4N2K/1B2n3/B1nbr2Q/4P3/2pB1qp1/PN3nRb/1R1Qr1NP/n2knR2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 f5 Kf4 b5 e4 c5 d4 b3 e6+ Kd6 a3 g6 e7 b4 Kg5 f4 h6 b2 h7 b3 Qd2 f3 Nh3 f2 Nf4 Qc7 e8B Bh3 Ra2 Ra6 Bc6 Ne7 Kf6 g5 Bb7 g4 Ng2 Nbc6 Rg1 Rb6 Bfa6 c4 Rf1 Rg8 h8Q Rg6+ Kf7 Re6 Qhh6 Rb4 Nc3 b1N Na4 b2 Nc5 Rb5 Nb3 Rc5 Rg1 f1N Rh1 Ne3 Rf1 N7f5+ Kg8 Nc2 Kh8 Na1 Rf3 Nfe7 Rf1 Kd7 d6 Rce5 d5 Qb8 Qc3 Nd2 Qd3 b1N Rb2 Nf3 Be3 Ne1 Bd4 Nd2 Qe2 Ndf3 Qed2 Ke8 d7+ Kf7 d8R Qc7 d6 Qb8 Qh7+ Kf6 d7 Qc7 Re8 Qd6 d8N Qb8 Ne3 Kg5 Nf7+ Kf4 Qh4 Ng8 Rd8 Bd6 Rf8 Nge7 Qh6+ Rg5 Rg1 Qc7 Rg3 Qb8 Qh5 Rge5 Qh6+ Ng5 Bc5 Bc7 Rg2 Kf3 Bd4 Rf5 Rg8 Rfe5 Nd6 Qf8 Ne8 Bd6 Qd3 Qf7 Rf8 Qf5 Rb1 Qf7 Rg3+ Kf2 Qc3 Ke2 Ng2 Qf2 Rb2+ Kd1 Rf7 Qd2 Rf1 Nf3 Qb4 Qf4 Bb6 Rd5 e5 Rd2 Bd4 Re2 Qd2+
R1n1b2q/k2b2R1/Nn3bB1/r2pP1PN/3NrB1b/5BpQ/QP6/1K1b2R1 b - - 0 1 illegal: No proof kernel
8/2bb2Q1/5R2/1p1BNbP1/1Nrbn2R/b2KpBnP/P2BQ1rN/2q2Qk1 b - - 0 1 illegal: No possible last move, all moves rejected
bQ1r1BK1/R1Nk3P/1b6/2pnP1b1/bbBN1Q2/p1Qr2B1/P4q2/N2n1R2 b - - 0 1 legal: proof: e4 b5 d4 e5 dxe5 h5 g4 f5 exf5 Nh6 gxh5 Ng8 c4 bxc4 Kd2 c5 Kc3 g5 h4 d5 f4 a5 b4 g4 h6 a4 h7 a3 b5 g3 b6 g2 f6 Ba6 b7 Qb6 h5 Qd8 f5 Bd6 h6 Nc6 b8Q Nb4 f7+ Kd7 f8B Qf6 Nf3 g1B Bf4 Ne7 Bg3 Nc2 Qd4 Bf2 Qf4 Bc7 Nbd2 Bb6 Nb3 Ne3 Nfd4 Bb7 Rc1 Ra4 Na1 Ba8 Rh4 Rg8 h8Q Ra6 Rh2 Be1+ Rd2 Qh4 f6 Ra4 f7 Nd1+ Kc2 c3 Kb3 c2 Bc4 Ra7 h7 Qh2 Qhf6 Qf2 Qe3 Ra4 Qff4 Rh8 Rb1 c1B Rdb2 Bb4 Qc3 Qg1 Rg2 Qf2 Rg1 Be3 Rf1 Bd2 Bh6 Rd8 f8N+ Ke8 Nfe6 Kd7 Bf8 Ra6 Nc6 d4 Nc7 d3 Nd4 Bc1 Bd5 d2 Kc4 Ra7 Bf7 Nd5 Bg8 B4a5 Rb5 Bb4 Ra5 Rb7 Ra7 N1e3+ Kd3 d1B Ke4 Ba4 Bf7 Nd1 Kf5 Be3 Kg6 Bd2 Kg7 Bc1 Qf6 Bg5 Kg8 Bf4 Ne8 Bg5 Qf4 Rc7 Ra5 Rc6 Nc7 Rh6 Ra7 Rh3 Bh2 Rd3 Bg3 N5e3 Bb3 Nd5 Bc4
1N4Q1/2n1b2P/Bb2bP1R/1rNRK1kr/bp6/1bBq2pP/8/1nRQB1Q1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Ke3 Kf6 Kd4 g5 a4 b5 c4 d5 f4 b3 h6 b4 a5 g4 c6 b2 a6 e6 a7 g3 c5 Qb6 c7 Bd6 h7 Qb5 c6 Bf8 Ra5 Qa6 Ne2 Ne7 Nd2 b1B Nb3 Bc2 Nc5 Ba4 Bd2 Qb5 Bc3 Na6 Be1 Rb8 a8Q Rb6 Qa7 e5+ Ke3 e4 Kd4 Bd7 c8Q e3 c7 Be6 Qe8 Qd7 c8R Rb5 Rc6 Nc7 h3 Rg8 Rb6 Rg5 Qd8 Rh5 Qdb8 Kg7 f6+ Kh6 f5 Kg5 Ke5 d4 f7 d3 Nd4 e2 Nc6 d2 Qe8 Bab3 Nb8 Ned5 Rba6 Be7 f8B Nc3 Bg7 Qd8 Qg8 Qd3 Rd6 Nb1 Rd5 Bc8 Ra6 Bd7 Rh6 Be6 Qc2 d1B Qd2+ Kh4 Qa1 Bdc2 Qd1 Kg5 Qd4 Ba4 Qg1 Bcb3 Bc3 e1B Be2 Bf2 Be1 Qd2 Bf1 Rb6 Ba6 Qd3 Rh2 Be3 Rc2 Rb5 Rc3 Kh4 Rc1 Bd4+ Kf4 Bf2 Bgc3 Be3+ Ke5 Bf2 Qf8 Kg5 f6 Be3 Nb7 Ba7 Nc5 Bb6 Qg8+
3r1r1k/1PB1P1p1/2N1Q2p/N2r1nR1/5nNb/r1q3Q1/2b1RRP1/B1K3Qr b - - 0 1 illegal: No proof kernel
2N3r1/rp1Nr1n1/kn1PP1Rb/1q2r1p1/3K4/1R1b4/1PQ1NBr1/1QR2Q1B b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 Kf2 Kd7 e4 g5 h4 c5 a4 Kc7 d4 f5 h6 f3 Ke3 c4 d6+ Kc6 a5 Kb5 d5 f4+ Kd4 f2 e5 f3 d7 Qf6 d8Q Qe6 h5 Bd7 d6 Rh7 a6 Be7 Qf8 Qf5 e6 Nf6 Rh3 Rf7 h7 Ng8 h8Q Nh6 Ne2 c3 Bg2 f1R Be3 c2 Qh7 c1R Bf2 Rc2 Bh1 Re1 Nd2 Bc6 Ne4 Nd7 Rc1 Nb6 Nf6 Be4 Nd7 Bd3 Qab8 Ra7 Qbc8 Rg7 Qf6 Bf8 Qf7 Rd2 Qc2 Rg8 Qhg6 Ka5 Qb1 Qb5 Qff6 Ng4 h6 Ne3 h7 Bh6 h8R Rc2 Qff7 Rc7 Qc2 Rg1 Rh7 Rg2 Rg7 Rc5 Qe4 Re5 Rg6 Nf5+ Kc3 Raa8 a7 Ng7 Kd4 Ka6 Rg3 Rae8 a8N Re7 Qb1 Bc4 Qec2 Bd3 Be3 f2 Rf3 f1R Bf2 Nc4 Nab6 Re1 Nc8 Nb6 Re3 Rf1 Bh4 Rf3 Qf6 Rfg3 Qf1 Rf3 Bf2 Rff8 Na7 Ra8 Nc8 Ra7 Rg3 Bc4 Rc3 Bd3 Rb3
r2rR2R/PrQp2QP/6bb/2RKQ1Nn/r1rn1Pk1/Np1BN3/8/q3B3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 a4 b5 f4 g5 h4 b3 c4 b2 h6 g4 h5 g3 h7 b4 c6 b3 c7 g2 c5 Nc6 h6 Nce7 c6 Ra6 a5 Ra7 a6 Bg7 Bd2 Rb7 Nh3 g1R Na3 b1R a7 Rc1 Be1 Rc4+ Qd4 Rg2 Rd1 Ra2 Ng5 Qe8 Rh5 Qf8 Nb1 Raa4 Bd3 Qf7 Na3 Qd5+ Ke3 Qa5 Ke4 Qc3 Rb1 Qa1 Rc1 Rb8 Rd1 Ba6 c8N Rb7 c7 Nc6 Kd5 Bf8 Qc5 e4 Nd6 e3 c8Q e2 Qc7 Nd4 Rc1 Bg7 Rh3 Bb5 Re3 Bf8 Re8 Bg7 Bf2 e1R Rc3 Re7 Be1 Rf7 Rc1 Rf8 Rc2 Rc3 Ndc4 Bc6+ Kd6 Be4 Ne3 Rcc4 Rc3 Bd5 Qb5 Bf7 Qba5 Bg6 Kd5 Rcb4 Rc5 Rc4 Re5 Ra8 Re8 Ne7+ Ke4 Rg8 h8R Nd5 h7 Bh6 Qb5 Kg7 Ke5 Nf6 Qba5 Nh5 Kd5 Kf6 Qc3 Bf8 Qb2 Kg7 f6+ Kh6 f7 Bg7 Rc8 Rd8 f8Q Nf6+ Ke5 Kh5 Qe2+ Ng4+ Kd5 Re8 Rd8 Bh6 Qg7 Rf8 Nf1 Rg8 Qee5 Nf6+ Kd6 Kg4 Rc8 Nh5 Kd5 Re8 Rb8 Re7 Rbg8 Ree8 Rf8 Reb8 Re8 Rd8 Ne3#
8/rB2R3/2r2k2/1n2R1p1/2Nb1NPr/QPp1b1Rq/Br1nKPN1/1bQ2B2 b - - 0 1 illegal: No proof kernel
Q1n1N3/BB3r2/K1R2N2/2rpQq2/R1R1pP2/bBnPkP2/1Nb3b1/3n2b1 b - - 0 1 legal: proof: h4 b5 b4 g5 a4 gxh4 axb5 f5 e3 c5 bxc5 f4 exf4 Bg7 Ra6 Bh6 Ra1 Bf8 Ke2 Kf7 Kd3 Kf6 Kc4 Kf5 g4+ Ke4 b6 a5 Kb5 d5 c4 e5 b7 h5 c6 a4 g5 a3 g6 h3 g7 a2 c7 h4 c5 h2 c6 h3 f3+ Kd4 Qe1 Bf5 c8R Qd6 c7 Nc6 b8Q Nf6 g8N Bc2 Na3 Qe6 Bc4 Ne4 d3 Ra7 Qa8 Ne7 Nf6 Qf5 Bb3 Nc3+ Kb6 Ra5 Ne8 Rc5 Ka6 Rh7 Nc4 Rf7 Nb2 e4 Qh4 Nc6 Qg5 Na7 Bd2 Bd6 Be1 Bf8 Ne2+ Ke3 Ng3 Bd6 Rc1 a1B Nh5 Bf8 Rg1 h1B Nhf6 h2 Bh4 Bg2 Bf2+ Kd2 Bd4 h1N Qh5 Nf2 Rge1 Qh3 Qe5 Nfd1 Rh1 Qh7 Rh6 Bd6 Rd8 Ke2 c8B Qf5 Bb7 Be7 Rd6 Nc8 Rb6 Bd6 Rb4 Bf8 Ra4 Bd6 Nc4 Bb2 Rg6 Ba3 Nb2 Bb8 Nh5 Ba7 Rc6 Rc4 Bb6 Rc5 Nhf6 Ke3 Bc7 Rc4 Bb8 Bd4 Ba7 Rc5 Ra1 Ke2 Ra2 Bg1 Rc4 Ke3 Ra1 Bb4 Ra5 Ba3 Raa4
1Q2N2n/1Rr1n3/5Q2/2P1bb1p/2bNr1PP/4Bpkq/1Q1KN2R/1BB3nn b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 dxe5 Na6 axb5 Nb8 f4 gxf4 c4 Ke7 g4 Ke6 h4 h5 e4 f5 b6 a5 c6 d5 b7 f3 c5 f4 c7 d4 Na3 d3 Nc4 a4 Bg2 f2+ Kd2 f1B Ne2 a3 Rh3 a2 Rh2 Rh7 Bb2 Nh6 Ke1 Nf7 Qb1 d2+ Kd1 Bd6 Na5 Nh8 Bc1 Nc6 b8B Ne7 Nb3 Ra4 Qb2 f3 Rb1 a1N Bh3 Bd7 c8Q Nc2 Qa6 Nd4 Bc7 Qb8 Bd8 Nd5 Bg5 Ne7 Be3 Rb4 Ng1 Bfb5 Bf1 Bc4 Bd3 Ne2 Kc2 d1N Kd2 Nf2 Nd4+ Kf7 e6+ Kf6 Qb6 Ke5 Qc6 Nh1 Bc2 Ng8 e7 Bf5 e8Q+ Ne7 Qa6 Qc7 Qb8 Rg7 Qba2 Ra4 Rb7 Rf7 Qb2 Rh7 Bf2 Kf4 Bb1 Be5 Be3+ Kg3 Qf6 Rg7 Nh3 Ng1 Nf4 Bd6 e5 Rh7 e6 Be5 Ke1 Qd6 Nb5 Qd3 Nd4 Qf1+ Kd2 Rb4 Nd5 Qh3 Nc3 Nc6 e7 Ra4 e8N Rc7 Nd5 Ne7 Nf4 Bcd3 Nde6 Re4 Nd4 Bc4 Nfe2+
1B1B2B1/1RNnnb1q/2P2Q2/Kp4b1/3NkNrP/2nP2p1/2Q1n3/RbrR4 b - - 0 1 illegal: No possible last move
KR2rr2/nN5B/1bpNPn2/3kbQ2/3B3P/2P2qpR/Q2b4/1R2rbNQ b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Ke2 Ke7 Ke3 a5 Kd4 g5 Kd5 g3 f4 a4 h4 d6 b4 g2 e6 g4 f6+ Ke8 b6 g3 c3 a3 b7 a2 f7+ Ke7 f5 Ra4 b5 Rf4 b6 Nc6 b8Q Na7 b7 Bg7 f8N Be5 Nd7 Qf8 Qa8 Qf6 b8R Ba6 Rh3 Bb5 Nf3 g1B Nbd2 Bb6 Rb1 a1B Ng1 Bb2 Nc4 Qf8 Be3 Bc1 Bf2 Bd2 Bd4 Qf7 Qa4 Qh5 Bd3 Qf3+ Be4 Ba6 Nc5 Bb5 Na3 Bf1 Nb5 Kf6 Qa2 Ke7 Qc6 Kf6 Nb7 Ke7 Ne2 Nf6+ Kc4 d5+ Kb4 Ba5+ Kc5 Re8 N5d6 Bb6+ Kb4 Rg4 Ng1 Rgg8 Bc2 Rgf8 Bd3 Nc8 Kb5 Na7+ Ka6 Ng4 Bf2 d4 Qe4 c6 Be3 Qd1 Qh1 Qf3 Bf2 Nf6 Be3 Nb5 Bc2 d3 Bf2 Bg5 Bd4 d2 Be4 d1R Bc2 Ba5 Bd3 Re1 Bc2 Na3+ Ka7 Bd2 Ka8 Nb5 Bd3 Bb6 Bc2 Ne4 Bd3 Kf6 Bc2 Na7 Bd3 Kg7 f6+ Kg6 f7 Kf6 Nc4 Kf5 Ncd6+ Kf4 Bc2 Nf6 Bh7 Rh8 Nf5 Ke4 f8Q Rg8 Qf7 Rgf8 Qg6 Bc4 Nfd6+ Kd5 Qa3 Bb5 Qf5 Bf1 Qa2+
n1B3bk/K1Q1Nrp1/2P3QR/1b3p2/7r/RQ4BP/1P4nr/1NbN1Brq b - - 0 1 illegal: No possible last move, all moves rejected
1nBb4/2P2pK1/R1Q2Q2/1BNrr1p1/rn2Nbk1/P2RQ2q/1r4P1/n1B3R1 b - - 0 1 illegal: No proof kernel
5r2/1NPPr1k1/1Q1BN1N1/n1Kb4/qp2R3/1BBbnR1Q/1r2Pp2/1R1rb3 b - - 0 1 illegal: No proof kernel
r4k1B/1Np1Pr2/1n2B1Q1/1P1b2N1/1BR2n1b/2Q2p2/QKP2n2/1nr1RNq1 b - - 0 1 illegal: No possible last move, all moves rejected
3rQ3/P6R/2PPnp1N/k4b1n/1rQ1bN1K/4Br2/BQ1Rp3/bb1RB1q1 b - - 0 1 illegal: No proof kernel
Qk2q3/b1Nnn3/1rQQ2BK/1q3P2/R1R4n/BnRpPp2/b3Nr1P/5N2 b - - 0 1 illegal: No possible last move, all moves rejected
r3B2n/1n5R/1QR5/NP1Q1pp1/2N1Pk2/P1bq2B1/b2b3Q/1bqr1BRK b - - 0 1 illegal: No possible last move, all moves rejected
K3R2b/B1rn2rb/6B1/pnR2PN1/q6k/1QnpP2q/n5PN/1R2Q1QN b - - 0 1 illegal: No proof kernel
r1qrbNRN/bQ1n2R1/1r3PQn/4Q1P1/1k2r3/3pq1PK/p3B2N/1R4B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 a5 Kf2 h5 Kg3 e5 c4 Ke7 b4 Kd6 f6 d3 f7 a4 b6 a3 b7 h4+ Kh3 e4 f5 e3 g3 a2 b5 Kc5 f6 e2 b6 e1Q Qc2 d2 Na3 d1R Be2 Rd2 Rb1 Ra6 Nf3 Qe8 Nh2 Nh6 Nb5 d5+ Qf5 Qc6 Nd6 Nd7 Qg6 d4 b8Q d3 b7 Rb2 Qc7 Kb4 c5 Ra8 Be3 Be7 Bg1 Rd8 b8R+ Bb7 Bh5 Qe3 f8N Qa6 Rc8 Bc6 Nf7 Ba4 c6 Bc5 Nh8 Ba7 Qe5 Bb5 Rb8 Qc8 c7 Rb3 Nf1 Rb2 Rh2 Rb3 Rc2 Rb2 Be2 Rb3 Kh2 h3 Rc6 Rb2 Re6 Rb3 Re7 Rb2 Rg7 Rb3 Kh1 h2 Kg2 h1R Nh2 Rb2 Kh3 Rb3 Bf2 Rc1 Bg1 Rc4 Qd5 Re4 Qe5 Qb7 c8Q Rb2 Qc1 Qc8 Qc6 Nc5+ Qee6 Ka4 Rg8 Ka5 Qd5 Be8 Rb7 Rb6 Rbg7 Ka4 Qef5 Nd7 Qfe5 Ka3 Qb7 Ka4 Ra1 Kb4 Rb1+
1r2RBK1/r7/2RPNq2/npPb2RB/2Pqkb1Q/B3pN2/2q1qN2/n1Q5 b - - 0 1 illegal: No proof kernel
qqb5/QBn3nN/3p1R1P/NN4R1/rk1r1BP1/1b2R1nB/1p1P4/2n3KQ b - - 0 1 illegal: No proof kernel
RR2b1B1/1Nr2QN1/NKP1Q3/3pr1bk/2B3bP/n1qn4/1p1PbQR1/4q3 b - - 0 1 illegal: No possible last move
1rNq1Q1N/Rbk2R2/p4qRb/1BB4Q/p1B1P1Kn/6n1/1NPP4/r3b2b b - - 0 1 illegal: No proof kernel
nn2NQK1/1N6/pbr4P/pb3R2/2Bbq1PB/B1PRQrRq/2kN2b1/8 b - - 0 1 illegal: No proof kernel
QKb5/N2BQ1PR/PP2p2B/1BNrkrqp/1q3R1b/2b5/n2n2R1/3Nb3 b - - 0 1 illegal: No proof kernel
bK4R1/Np1N1rRb/B5q1/4Qq2/1PQ2Bq1/BpQn4/4P1P1/qrNnk3 b - - 0 1 illegal: Other
qrQ1R1nK/NN2pQ2/P1Q1P1B1/3R1qNp/1nP5/b4k1q/R1r2Bn1/3r4 b - - 0 1 legal: proof: d4 g5 g4 c5 dxc5 b6 f4 Qc7 fxg5 Qd8 g6 Bb7 b4 a5 h3 Bf3 g5 Bg4 hxg4 axb4 Kd2 d5 Ke3 Kd7 Kf4 Kc6 Kf5 h5 a4 b3 e4 b2 c4 f6 a5 d4 a6 d3 e5 d2 e6 b5 g7 b4 Kg6 b3 Nf3 f5 Ra2 f4 Na3 b1Q+ Bd3 b2 Nb5 Qd7 Nd6 Qc2 Nb7 Qc3 Qa4+ Kc7 c6 b1Q Bc2 d1R Be3 Qc8 Bf2 Rh6+ Kf7 Rg6 Re1 Qd3 Re5 Qf1 Rf5 Qh3 Rd5 Qb5 Be4 Qc5 Bf5 Kb6 c7 Nc6 Be4 Nb4 Qe8 Qd8 c8N+ Kc7 Na7 Rb8 Ne5 f3 Bb1 Nf6 g8Q Bh6 Qgf8 Rg8 g6 Bc1 g7 Ba3 g5 Qa5 g6 Qb5 Bd4 f2 Nf3 f1N Bf2 Ne3 Ng5 Ng2 Bc2 Qc8 Bf5 Qc5 Qa4 Kb6 Qd7 Qc6 Qfc8 Rd8 Bb1 Ng8 Bd3 Rc1 Qd6 Rc2 Bf5 Nf6 g8R Rd7 Re8 Ng8 Kg7 Rd8 Rd4 Qa5 Be4 Qaf5 Kh8 Rd7 g7 Rd8 Na5 Rd7 Qdc7+ Kc5 Bd3 Rd5 Qb6+ Kd6 Nb7+ Ke5 Qbc7+ Rd6 Rd5+ Kf4 Be4 Qf7 Bg6 Qff5 Na5 Qa8 Qc6 Rd8 Nb7 Rd7 Ra5 Rd1 Rd5 Nf6 g8Q Kg4 Qf7 Ng8 Ne4 Kf3 Ng5+
Nq2nr2/nb6/Q2q1PB1/4p3/pP4rR/PN5k/1BKRqB1r/N3R1Qn b - - 0 1 illegal: No possible last move, all moves rejected
N3K1bQ/1r2R2r/4b1Bq/1RQ1P2Q/1qqk1p1b/3B1n2/1pP2P2/2r2NBR b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a3 Na6 a4 b4 Bh6 Nc7 Bc1 Nb5 axb5 Bd6 Ra6 Be7 Ra1 Bf8 e6 Ke7 Kd2 Kf6 Ke3 Ke5 g4 a5 b6 h5 c6 d5 g5 f5 e7 d4+ Kd3 b3 Kc4 b2 Kc5 d3 e4 d2 g6 a4 c7 a3 Kc6 a2 e8R+ Be7 b7 Nf6 b8Q Ng4 g7 Qd3 g8B Nh2 Ne2 Be6 Nf4 Ra7 Bh7 Kd4 Rg1 Rb7 c8Q Bg5 e5 Qc4+ Kd6 Bf6 Qf3 d1R Re7 h3 Qg4 h4 Bd3 Bd5 Bd2 Rc1 Bg6 Nf3 Qg5 Bf7 Nd5 h2 Nb6 h1Q Na8 h3 Bf4 h2 Nd2 Be6 Nf1 Rh7 Bg3 f4 Qc5+ Kc3 Qh8 Bg8 Qc7 Kd4 Kd7 Qb4 Ke8 Be6 Rb1 a1Q Qh6 Qa6 Ra1 Qac4 Ra5 Qg2 Qh4 Qh3 Rb5 Bg5 Qg4 Qh6 Qh5 Bh4 Qc8 Bg8 Qc6 h1B Qc8 Nd2 Bh2 Bhd5 Rh1 Nf3 Bg1 Bde6 Qc5+
1nbR1nqn/r3qp1N/5QPP/7K/1NBbpB2/1QR3N1/qQ1B1P2/b4k2 b - - 0 1 illegal: No proof kernel
2rQ1nkn/2bP1rBQ/4q3/1R1p4/K2Prp1R/3R4/BQ2Pn2/nNBn2N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 exf4 a4 d6 axb5 Qe7 c5 Qd8 c6 Bd7 cxd7+ Ke7 h4 f5 b4 g5 h6 Kf7 b6 c5 Ra3 f3 b7 a5 b5 g4 h5 g3 h7 f4 h6 Qe7 Bg2 c4 Bb2 a4 Rh4 c3 Nh3 c2 d3 c1N Kd2 f2 Kc2 f1N Bh1 Qe6 Bd5 g2 Kc3 g1R Kb4 Rg7 Ng1 Ne3 Bc4 Nb3 Bc1 Ne7 Qc2 Nc5 Qb2 Rhg8 h8B Nd1 h7 Ne4 Rb3 a3 Rc3 d5 Rh1 a2 Rh4 a1N Ba2 Rg5 Bg7 Rf5 h8Q Nef2 Qh7 Ra6 Ra3 Rc6 Ka5 Rc4 Rb3 Re4 Rc3 Na6 b8Q Ng6 Ra3 Bb4+ Ka4 Nh8 Qc7 Ra8 Qd8 Rc8 Rc3 Ba5+ d4 Qc6 Re3 Bc7 Rd3 Nc5+ Ka3 Ne6 b6 Nf8 b7 Qe6 b8R Rf6 Ka4 Rf5 Qh6 Kg8 Rb5 Rf7 Qh7#
1b3Q2/Rpk4n/2PrbBQb/1N4Bb/1P1RbPRK/r1QB4/3pq3/6rN b - - 0 1 illegal: No possible last move
1brQr1RR/4BBpq/K2PBP2/6qr/NRNr2rp/2N1n2P/7Q/n5k1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 c4 exf4 cxd5 f3 Na3 f4 Nb1 Bf5 gxf5 Qd6 Ra3 Qe7 Ra1 Qd8 e4 Kd7 d4 Kd6 Kd2 h5 Kc3 c5 Kc4 a5 b4 a4 b6 a3 Kb5 a2 b7 f2 Nf3 c4 Nc3 Nf6 Qd2 Nbd7 b8R Ng4 Rb1 a1Q Bh3 f1R Ba3 Ne3 Ne5 Qg5 f6 f3 Be6 f2 Rb3 Be7 Rg8 Re8 Ka6 Qb1 Qa2 Rg1 b5+ Kc7 Rb4 Kd6 b6 f1R b7 Rg4 b8N Rd1 Qb2 Bd8 Qf2 Bc7 Qh4 Nf8 Nbd7 Bb8 Nc5 Nd7 N5a4 Nc5+ Ka5 Nb3+ Ka6 Na1 Qg3 Rd2 Qg2 Qf1 Qg1 Qff5 Qf2 Qh7 Qg1 Kc7 d6+ Kd8 d5 Rd4 d7 Kc7 h3 Kd6 Qh2 h4 Rf1 Qgg6 Rf5 Qgh6 Rh5 Qg5 Nb6 Kc5 d8Q Rd1 Nba4+ Kd4 Nf7 Rd3 e5 Rd2 Nd6 Kd3 Ne2 c3 Nc4 c2 Nec3 c1R Bf7 Qgh6 e6 Qg5 e7 Rdd1 Be6 Rd2 Nb1 Ke4 Nbc3+ Kf3 Rh6 Rdd4 Rh5 Ng2 Rh6 Kf2 Rh5 Kf1 Rh6 Ne3 Rh5 Rf8 e8B Rc2 B8f7 Re8 Rb6 Rc1 Be7 Rc2 d6 Rc1 Qe5 Kg1 Rh6 Rf1 Rb4 Rf5 Qf4 Rc5 Qe5 Rc8 Qh2+ Kf1 Bh5 Qd3 Qe5 Kg1 Bhf7 Rh7 Rg6 Rh5 Rh6 Qdg6 Rhh8 Qh7 Qh2+
3bk2R/q3p2n/4PrRN/p4Q1B/n2Qqn2/K3P3/P1R2BnN/1r1NnB2 b - - 0 2 legal: proof: h4 c5 b4 g5 bxc5 gxh4 c4 d5 cxd5 Bf5 f3 Be4 fxe4 Qc8 Nf3 Qd7 Ng1 Qd8 d4 f5 Kd2 a5 Kc3 b5 Kb3 h5 g4 f4 e5 b4 c6 h3 e6 f3 g5 h2 d6 h4 g6 h3 g7 f2 d5 Qb6 c7 Nc6 c8B Ne5 Nf3 Rh6 Nd4 Nf6 g8N Nf3 Rg1 h1N Nc3 h2 Rb1 Qa7 Ba6 Nh7 Be3 Ne1 Rb2 Rb8 Rg6 Ng3 Qc2 h1Q Nf3 Bg7 Qf5 Nh5 Nd1 Bd4 Nh2 Qe4 Rc2 Nf4 Bd3 Bb6 d7+ Kd8 Ka4 b3+ Ka3 b2 Bc5 Kc7 d8R b1N+ Kb3 Nc3 Ka3 Na4 d6+ Kc6 Re8 Bd8 d7 Rb1 Bc4 Kc7 Bd5 Qd4 Bf3 Qe5 Bh5 Qe4 Bg2 f1N Bf2+ Nc3 Bh3 Ne3 Bf1 N3g2 e3 Kc6 Rg7 Rf6 Rg3 Kb7 Rg6 Na4 Rf8 Bb6 d8Q Bc7 Qd4 Bd8 Nh6 Kb8 Rh8 Kb7 Bc4 Kc8 Ng8 Bb6 Qde5 Kd8 Bf1 Ke8 Qd4 Bd8 Nh6+
1b3qbR/2QR1BnN/B2PnR2/1b1K1p2/N1Pp1q1k/5PQ1/r1b4b/3QB3 b - - 0 1 illegal: No possible last move, all moves rejected
1bqQ1n1b/2pQQrb1/3Rq1bb/3N1p2/8/k3BP2/2PPK2N/2NBB1Rr b - - 0 2 legal: proof: e4 a5 b4 d5 a4 dxe4 g4 h5 gxh5 b5 axb5 a4 Ke2 Nc6 Ke1 Na5 bxa5 Qd6 Ke2 Qd4 Ke1 Qd8 h4 Kd7 b6 Kc6 h6 Kc5 b7 Kb4 b8N e5 h5 g5 f3 e3 h7 a3 a6 g4 h6 a2 a7 g3 Be2 e4 Nd7 g2 Nc3 Bg7 Ne5 Ne7 Ng4 Bf5 Nh2 Bg6 Bb2 f5 Nd5+ Ka4 Qc1 Qc8 Bd1 e2 Bd4 Rb8 Qb1 Ka3 Be3 Ra8 Kf2 e1B+ Ke2 Bg3 Qb5 Bf4 Qd7 Bg5 Bf2 e3 Be1 Bf4 Rb1 a1B Rb6 Rf8 h8Q Rf7 h7 Bfh6 Qhd8 Baf6 Nh3 g1B h8B Rb8 Rc6 Rb1 Nhf4 Bd4 a8Q+ Ba7 Qb7 Bb8 Rd6 Bf2 Kd3 e2 Rg1 Bfd4 Qb6 Bdf6 Qe3 Bb2 Nb4 Rc1 Nfd5 Bbe5 Na2 Bef6 Bh4 e1Q Qg5 Qe6 Be1 Bh7 Qe3 Ng6 Ke2+ Bc3 Qe4 Nf8 Qe5 Ra1 Nc1 Bg6 Qe3 Be5 Bf6 Rb1 Bg5 Bh8 Qe4 Bcg7 Qe5 Rb4 Be3 Rh4 Qef6 Rh5 Qfe7 Rh3 Ng4 Rh1 Nh2
4R1r1/bB1n2Q1/1q6/pn1p1n2/KN2q1Q1/n4nBP/1R1P2bP/k1B1RN1N b - - 0 1 legal: proof: c4 a5 f4 h5 a4 b5 axb5 e5 b4 exf4 b6 h4 b7 h3 gxh3 Rh7 b5 Ra6 c5 Rb6 cxb6 Rh8 e4 Ke7 e5 Ke6 Be2 Kd5 e6 f5 e7 c5 e8R g5 Bd3 g4 Ra4 c4 Re2 g3 Re4 g2 Re2 f3 Re7 f2+ Ke2 f1N Re3 c3 Ra2 f4 Bf5 Kc4 Bg4 c2 Bf3 Nh6 Nc3 Kb3 Kd3 Nf5 Ne4 Bc5 Ne2 g1N Nf2 Rg8 Re8 N1e3 Ng3 Nc4 Nf1 Na3 Bg2 d6 Qg4 Nd7 b8N f3 b7 Ba7 Na6 Qb6 b8Q Bb7 Qc7 Ba8 Nb4 Bc6 Ne4 f2 Neg3 Nf3 Rg1 Bb7 Nh1 Ba8 Ne3 N5d4 Re1 f1N Qb7 Ng3 Nf1 Ngf5 Qc7 Qc5 b6 Ndb5 b7 Qb6 b8B Bb7 Qc5 Bc6 Qe5 Ba8 Qeg7 Bd5 Bb2 c1Q Bc7 Qa1 Bc1 Qe5 Rc2 Nb1 Rb2+ Ka3 Kc2 Qe4+ Nd3 Bb7 Bd8 Ba8 Bh4 Bc6 Bg3 Bb7 Rb4+ Ka2 Rb2+ Ka1 Kb3 N1a3 Nb4 d5 Ka4 Nc7 Ne3 Ba6 Bf1 Bc4 Be2 Bd3 Bd1 Bf1 Be2 Bg2 Ba6 Ncb5 Nf1 Nbd6 Bc8 Ndb5 Bb7
3B4/1nnn2p1/1p2q1PR/qN1r1b2/B1n1Q2B/2PRr1rQ/2P4N/Q2K1R1k b - - 0 1 illegal: No proof kernel
2R3Qr/1qk2pRB/P2qb3/1Q1nN2n/3qp2B/1Q2PqB1/KPr1r3/5RN1 b - - 0 1 illegal: No proof kernel
1r5N/B1pQ1r1P/2PR4/1R1P3B/RnNq4/q1n1n1pK/3q2nN/k3QBb1 b - - 0 1 legal: proof: e4 d5 g4 dxe4 a4 h5 gxh5 b5 axb5 Be6 Qe2 Bf5 Qd1 Bc8 f3 e5 Kf2 e3+ Kg3 e4 Ra5 e2 Kg2 e3 Ra3 Bb7 Ra1 Be4 fxe4 Qf6 Ra3 Qh4 Ra1 Qd8 c4 Ke7 h4 Kd6 d4 e1N+ Kh3 g5 b4 f5 b6 a5 h6 a4 b5 a3 h5 e2 b7 f4 b6 a2 h7 f3 h6 f2 Be3 Nc6 b8Q Nb4 b7 Nf6 Na3 Nfd5 Nf3 Nc3 Nh2 Ng2 Qc8 e1Q b8R Qd2 Rb5 Rb8 c5+ Kc6 e5 Kd5 c6+ Bc5 e6 Rf8 h8N Rf7 h7 g4+ Kg3 Qf6 e7 Ke4 d5 Qfd4 e8B Bb6 Rc1 a1Q Nc4 Qa3 Qe1 Ba7 Ra1 Bc5 Nf3 Ba7 Kh2 g3+ Kh3 Bc5 Nh2 Bb6 Be2 f1N Qd7 Ba7 Bf2 Nfe3 Rf1 Bb6 Bg1 Ba7 Rf6 Bc5 Rd6 Bb6 Bg4 Kd3 Be2+ Kc2 Bf1 Kb3 Rc1 Ka2 Rb1 Na6 R1b4 Ba7 Ra4 Nb4 Qe2 Ka1 Bf2 Rg7 Bh5 Rf7 Qe1+ Ned1 Qd8 Q4f4 Bd4 Bc5 Be5 Bg1 Bd4 Qfe3 Ba7 Qed4 Qe2 Nde3 Qd7 Ned1 Qf2 Nde3 Qe1+
Nq3r1N/1pp1n2K/BPPQ2R1/R3Q3/Pn2b3/1BRqn2B/k5r1/3N1nr1 b - - 1 2 legal: proof: d4 g5 h4 a5 hxg5 e5 dxe5 Ba3 b4 Ke7 g4 Qe8 f4 Nf6 b5 Kf8 f5 Nh5 g6 Qe7 g5 Ke8 Bd2 Qd8 Bc3 Bf8 Bb4 axb4 f6 Bg7 fxg7 Nf6 Rh4 Ng8 Rh2 Ke7 Rh1 Ke8 Kf2 Ke7 Ke3 Ke6 Ke4 h5 c4 b3 c5 f6 c6 d6 Rh3 h4 Nf3 b2 Nfd2 Qd7 Nc3 b1N Nc4 Na6 Nb6 Ra7 Na8 Qe8 b6 Nh6 g8N Nb4 g7 Ra4 g6 Ng4 Nh6 Ne3 Nf7 Rf8 g8R f5+ Kf4 d5 Kg5 d4 Kh6 d3 g7 f4 Kh7 d2 Nh8 f3 a3 Ned5 e4 f2 Ba6 f1Q Rg3 h3 Ra2 Ke7 e6 Kd6 e7 Kc5 e5 h2 e6 h1R+ Rh3 Qd8 e8B Qd3+ Bg6 Rg1 e7 Bf5 e8Q Be4 Qe5 Qb8 Bf5 Ra5 Rg3 Rb5 Rg6 Kc4 Bh3 Rg2 a4 Ne7 Rc2 Kb3 Rc1+ Ka3 Rc2 Rf4 Rd8 Ra5 g8B Rf8 Bb3 Rg1 Rd5 Rg2 Qdh5 d1N Qh6 Ne3 Nd1 Nd2 Rc3 Ndf1 Bc2+ Ka2 Qhf4 Rc5 Qh2 Rc4 Ra5 Rc5 Qd6 Rcg5 Qhf4 Rg1 Qfe5 R5g2 Bb3+
1q4N1/1P4p1/1Q1pPRn1/2BQ1KP1/1Rr2b2/nqQn4/q1bN2N1/BB1n2k1 b - - 0 1 illegal: No proof kernel
N2qqQ1K/N6N/2r1qn2/1Rn3P1/2p2bk1/1R1nB1BB/pPP1q1Qr/7Q b - - 0 1 illegal: No possible last move
bR5k/3BNqqq/3PnPR1/1b2p1BR/3N4/Q1np3r/3KPq1Q/2QN2b1 b - - 0 1 illegal: No proof kernel
2QB1N2/pR1B1p1k/B1Q3qr/1rbb1q2/P2r2RN/R2br1PK/5P2/3nN3 b - - 1 2 legal: proof: d4 b5 c4 e5 dxe5 c5 b4 g5 h3 Nc6 h4 gxh4 bxc5 b4 Qc2 Nd4 Qd1 Nb5 cxb5 Qg5 Nf3 Qf6 Ng1 Qd8 e4 d5 a4 h5 c6 d4 g3 d3 b6 h3 e6 b3 e7 b2 b7 h2 b8R h4 c7 h3 e5 Qd7 Qf3 Nh6 Bg5 Nf5 Nd2 Ne3 Rb7 Nd1 Ra3 b1R Qc6 Rh6 Ndf3 Rb5 Nh4 d2+ Ke2 Rb8 Kf3 Rb3+ Kf4 Rd3 Ngf3 Re3 Qe4 Qe6 Ne1 Qg6 Ba6 Bf5 Qg2 Bd3 Kg4 Rd8 Qf3 Rd5 Qf6 Rb5 Qf3 Kd7 e8N Ke6 Qg2 Bc5 Ng7+ Kd7 Ne6 Ke8 Ng7+ Kf8 e6 Kg8 c8Q+ Kh7 e7 Bb1 e8B Bd3 Rg1 h1Q Bd7 h2 Qgc6 Qf3+ Kh3 h1B Bd8 Qf4 Ne6 Bd5 Rf1 Rb1 Rb4 Qff5+ Rg4 Rb5 Nc2 Nb2 Rb1 d1R Ne1 Rd2 Rba1 Nd1 Rb1 Be2 Rbb3 Rd4 Rb4 Bd3 Rb1 Ra5 Rb7 Rb5 Nf8+
1Q1bKBq1/P6b/1rk4P/pB5r/3qN1n1/2RR1Rb1/PQ5p/2Qr1NBb b - - 0 1 illegal: No proof kernel
Brb4k/4NQ2/2p1r1N1/2r2b1Q/1R1P1b2/1R2NPBq/1KPqpB1R/5nr1 b - - 0 1 illegal: No possible last move
q3q2k/RN3rnp/p2R1N2/1rbq3Q/1bRq4/PQ1B1Q2/b2NP2P/1B2K3 b - - 0 2 legal: proof: g4 c5 d4 e5 f4 f6 b4 Nh6 bxc5 Qc7 f5 Rg8 g5 Kd8 dxe5 Be7 g6 Rh8 Bg5 fxg5 f6 Qb6 Qd2 Kc7 Qd1 Kc6 f7 Qd8 f8N Ng8 Kf2 Na6 Nc3 Nc7 Ke1 Ne8 Nb1 Nd6 Ne6 Kb5 Nf8 Nf7 gxf7 Kc6 c4 b5 a3 d5 e6 b4 Kf2 d4 Qc2 b3 Ng6 a6 f8R d3 Qb2 d2 Nf3 d1Q Bg2 g4 Nc3 Nf6 Nd5 Nh5 Nf6 Qe8 Rc1 Qd5 Ngh4 g5 Rhd1 g3+ Ke1 g4 Nf5 Ng7 Nd6 Rb8 Rf7 Rb5 Nb7 Rf8 Nd2 Bd6 e7 Be6 Qb1 b2 Be4 g2 Bd3 g1B Rc2 Kc7 c6 g3 c5 g2 Rc4 Kc8 Qc2 b1Q c7 Qb2 Qb3 Qbd4 Nfe4 Kd7 c8B+ Kc7 c6 Bb4 Nf6 Q4e4 Nc5 Kd6 c7 Ke5 Nb7 Bgc5 Bd7 Kf5 c8Q Kg6 Qc6 Qa8 e8Q Kh6 Re7 Rf7 Qc7 Kg6 Qf4 g1Q+ Qf1 Qgd4 Qf3 Bh3 Bg4 Kh6 Bh5 Be6 Bg6 Qee5 Qd8 Qeb8 Qa5 Qe8 Bge4 Nf5 Bb1 Kg7 Bed3 Kh8 Rd7 Ng7 Rd6 Ba7 Rdc1 Bb6 Rc7 B6c5 Rc4 Rd7 Nd8 Re7 Ra7 Rf7 Nb7 Qg5 Bbc2 Bb6 Rcc6 Rc5 Qb2 Ba2 Bb1 Rd5 Rc4 Qge5 Qc5 Qg5 Qc8 Rb5 Qb3 B6c5 Qch3 Qgd5 Qhh5
2K2N2/3N1B1B/kP4PQ/1bQNp3/3p2b1/r1Q1P2B/rR1b1np1/R1n1rq2 b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 h6 g6 Ba6 g7 Bc8 g4 Nf6 g5 Ng8 g6 Qc7 Bd2 Qd8 Bg5 hxg5 Kd2 e5 Ke3 a5 Ke4 f5+ Kd5 d6 h4 Kd7 c4 Kc7 b4 Kb7 c6+ Ka7 c7 g4 b6+ Kb7 b5 a4 c5 f4 h5 a3 e3 a2 h6 g3 h7 g2 Bc4 f3 Qd2 f2 Ne2 f1B Nbc3 Nh6 g8B Qf6 Nd4 Bh3 Ne6 Na6 c8B+ Kb8 Kc6 d5 Kd7 d4 b7 Ka7 b8N Ng4 c6 Bc5 c7 Nf2 Nd5 Nb4 Qc3 Bg4 Bf7 Bfe2 Rhb1 Nbd3 Rb2 Bb4 Bb3 Rg8 h8Q Nc1 Qh6 Rf8 Bg8 Bc4 Bh7 Rh8 Qd3 Bd2 Qc3 Bd3 Bc4 Qf3 Bb3 Qe2 Bc4 Qf1 Bb3 Rf8 Bc4 Rf5 Nf8 Rh5+ Kd8 Rh1 Be6 Kb7 b6 Ra3 Nbd7 Bde2 Bb3 Ka6 Kc8 Bb5 Bf5 Bf3 Bh3 Bg4 Ne7 Rg1 Bf7 Rh1 Nd5 Rg1 Rab1 a1R Qc5 R1a2 Ra1 Qd3 Kb8 Re1 c8Q+ Ka5 Q8c6 Ka6 Kc8 Qe2 Qc3 Qf1 Q6c5
N1nr1Rn1/8/P3QqP1/1Br2pk1/Q1bP3N/bQp3r1/RBp3N1/1n1B2K1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 Ke7 a4 h5 d4 c5 g4 b5 e4 f5 g6 c3 g5 b4 g7 c4 e6 h4 a6 h3 e5 c2 a7 h2 a5 b3 g6 Ba6 Ra2 Rh5 Nc3 Qe8 Bb2 Qc8 Nd5+ Kd8 e7+ Ke8 Nf3 Rh3 Nf4 Qc6 Ng2 Rg3 Nfh4 Nd7 Be2 Rd8 a8N Qf6 Bg4 Bb5 a6 Nb6 Qe2 Kd7 e8B+ Ke7 e6 Nc8 Qe4 c3 Bd1 Bc4 Bb5 Rd5 Re1 h1R Re3 Rhh3 Kg1 Rc5 Re2 Qg5 Re1 Kf6 e7 Rh2 e8Q Rhh3 Ba3 b2 Qd7 b1N Bb2 Bd6 Qd5 Rh2 Re8 Be7 Nf3 Rh8 Nh4 Qg4 Rd8 Kg5 Q5e6 Qf3 Rf8 Qc6 Qe1 Qf6 Qee6 Rc7 Qdc6 Ba3 Qce8 Nge7 g8Q Rc5 Qh7 Ng8 Qhf7 Rh7 Qb7 Rd7 Qbd5 Rd8 Q8c6 Be2 Qc4 Bd3 Qc6d5 Be2 Qa4 Bf1 Qdb3 Be2 Nb6 Bc4 Na8
b1n3r1/2k1Np2/P1pR1B2/bR4Q1/nn5B/2N2Ppr/QN2PQ1q/rB3K2 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 Bd6 cxb5 Bf8 b4 axb4 a4 d5 h4 Kd7 f3 g5 b6 d4 e6+ Kc6 a5 d3 b7 g4 e7 g3 e8Q+ Nd7 b8N+ Kb7 a6+ Kb6 h6 b3 h5 b2 h7 Qg5 h6 Qe5 Qd8 Qg5 Qb3+ Qb5 Ra5 Ne5 Nc3 b1N Nh3 Nd7 Qa2 Bg7 Bg5 Bb7 Bh4 Ne5 Nf4 Nc6 Qg5 Nge7 Bh3 d2+ Kf1 Nb4 Bf5 Nc8 Nd3 Bd5 Nc6 d1R+ Ne1 Rb8 Ne7 Ba8 Bd3 Rg8 h8Q c6 h7 Kc7 Be4 Bf8 Qd4 Qe5 Bg6 Qh8 Qf2 Rc1 Rb5 Bh6 Nd1 Nc3 Nd3 Ra1 Nb2 Na4 Bb1 Bg7 Rh2 Bd4 Rh1 Bb6 Nc3 Ba5 Rh2 Qf6 h8B Qh6 Rf5 Rb5 Bf6 Rd5 Rh1 Rdd8 Rb5 Rh8 Kg2 Rdg8 Rd1 Qh5 Kf1 Rh6 Rd6 Rh7 Qgd5 Rhh8 Bhg5 Qh2 Qd2 Rh3 Bh4 Nd5 Qc1 Nb4 Qg5
1Rr2Rq1/b2bp3/1P1NB1k1/Nn1QK2n/1Q5p/2Rpb3/2PP1r1r/3B1QN1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 Na6 b4 Bg7 Ba3 Bh6 axb5 Nb8 b6 Bg7 b5 Bf8 Bb4 cxb4 Ke2 Kf7 Kd3 a5 Ke4 h5 g4 d5+ Ke5 d4 f4 a4 f6 a3 f5 h4 g6+ Ke8 g5 b3 f7+ Kd7 g7 d3 b7 b2 f6 a2 g6 Qe8 Nc3 b1R Be2 Rb4 Qf1 Rf4 Ne4 Na6 Nd6 Rf2 Bd1 Nc7 b8N+ Kd8 Rb1 Rh2 Rb3 a1B+ Rc3 Bd7 Qf4 Ra4 Qg4 Rf4 b6 Rff2 Qb4 Rh3 Rh2 Nb5 Rg2 Rh2 Rg3 Nh6 g8B Nf5 Rg2 Bh6 f8R Ng3 g7 Nh5 Be6 Be3 g8Q Bb2 f7 Ba3 Qc4 Bac5 Qb4 Bf4+ Ke4 Bce3 Qg5 Bg3 Qd5 Be5 Rgg8 B5f4 Na6 Be5 Nc5 Bg3 Nc4 Bb8 Na5 Ba7 Ke5 Rh6 Beg4 Rc6 Ne4 Rc8 Be6 Ra8 Rh8 Rc8 Rfg8 Qf8 Nd6 Qe8 Rg5 Qg8 f8Q+ Be8 Qff4 Bc6 Rf5 Bd7 Ndc4 Ke8 Rf6 Rfg2 Qf1 Rf2 Nd6+ Kd8 Nf7+ Ke8 Rf3 Kf8 Nd6+ Kg7 Rf8 Kg6 Rd8 Qh7 Rhf8 Qg8 Rde8 Rc4 Ra8 Rc8 Rb8
1N1b3b/1rPRp1PB/nB1N2n1/3p3Q/1nR1bQr1/1Rq4B/p1P1QK2/k7 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 g4 Kf7 b4 Ke6 f4 d5 c6 a5 g6 h5 g7 e3 b6 h4 g5 h3 b5 e2 b7 a4 g6 a3 f5+ Ke5 f6 h2 b6 Ra4 f7 Bf5 Nc3 Ra8 Bh3 Rh4 Kf2 Ra7 Nb5 Qc8 Nd6 Nf6 g8B Be4 Be3 Rg4 Bh7 Na6 b8R Nd7 b7 Bg7 f8Q Bh8 Qf7 Nf8 g7 Ng6 Bb6 a2 Rb1 Qc7 Rd8 Qc8 b8Q Rb7 Rb3 e1B+ Kf1 Bb4 Qe2 Ba5 Kf2 Qc7 Rd7 Qc8 Ba7 Bd8 Bb6 Qc7 Qe1 Qc8 Ne2 Qc7 Rf1 Qc8 Nd4 h1N+ Ke3 Nf2 Qe2 Nd3 Rf4 Ndb4 Kf2 Bc7 N4b5 Bd8 Nc7 Nc5 Na6 Kd4 Qa7 Qc7 Nb8 Qc8 Qa4 Qc7 Rb2 Kc3 Rb1 Qc8 c7 Nca6 Rg1 Kb2 Rg3 Ka1 Rb3 Ra7 Qf5 Qb7 Qh5 Qc6 Ne8 Qc3 Nd6 Bd3 Rc4 Be4 Qb5 Rb7 Qc5 Ra7 Qce3 Rb7 Qf4
B2b2n1/P3rq1r/4Rn2/Bp4B1/NrRQ1Q2/p2N1K2/1P1b1PQp/1N3n1k b - - 0 1 illegal: No proof kernel
1b1N2N1/p1qn1P2/1pBkpB1r/1PRQb3/1b3Q2/r1R1Pn2/n2R4/3K1QB1 b - - 0 1 illegal: No possible last move, all moves rejected
kB2r2Q/6b1/4Nr2/r1PpRNbQ/1pB1n2p/1K1P4/PQ1Bq1Rq/1n1N4 b - - 0 1 illegal: No proof kernel
qr1NQRr1/3B4/3r1nb1/Npp3P1/q1P4Q/NB1kbn2/KP1p4/B3Q2R b - - 0 1 illegal: Other
2qQR3/4qQ1b/rBN1b1R1/p3BN1p/P1kbQ1rp/5n1P/nBK2P1R/8 b - - 0 1 legal: proof: c4 c5 e4 d5 cxd5 f5 exf5 g6 b4 Qa5 bxc5 Qb6 Be2 Qd8 Bh5 gxh5 d4 Kd7 Kd2 e5 a4 b5 g4 a5 g5 h6 g6 b4 f6 h4 g7 b3 d6 Ke6 h3 Kd5 d7 b2 c6 h5 c7 e4 f7 e3+ Kc2 e2 Na3 e1Q Rh2 Bd6 f8B Qde7 d8Q Q7e4+ Qd3 Q1e3 Nb5 Q4f3 Na7 Nd7 Ne2 Ngf6 Ng3 Be5 Bd6 Rg8 Qe4+ Kc4 d5+ Bd4 Nf5 Qg4 Nc6 Ra6 Be5 Qa3 d6 Nd5 Rb1 Nc3 Ra1 Qc5 Ra3 Na2 Rg3 Qg5 Rg4 Qe7 Rg6 Bb7 c8R b1B+ Kd2 Bc2 Bb2 Bd3 Ra8 Bc8 Rb8 Nb6 Ra8 Be6 d7 Bc2 Qc8 Bb1 d8B Nd7 Bb6 Bd3 Qd8 Bc2 Bg3 Ne5 Rb8 Bd3 Kd1 Nf3 Be5 Qc7 Rc8 Q5e7 Rb8 Qc8 Ra8 Rf8 g8Q Re8 Qf7 Rg8 Rh6 Rg4 Rg6 Qcb7 Qc7 Bb1 Re8 Qc8 Qd8 Ng1 Ng7 Qcb7 Rg5 Qf6 Qe3 Bh7 Rg6 Qc8 Qe4 Qe7 Kc2 Nf3 Nf5
1b2qRK1/3n4/1Br1Q2P/NqpR1pB1/B2P1pN1/1b1n4/r2q1QPk/3RQ3 b - - 0 1 illegal: No proof kernel
1N2qkr1/6R1/4Nnpn/3P2Q1/3bQ1B1/RPp1pqNb/K2P2rB/R1Q3q1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 c5 h4 e5 b6 a5 h5 e4 h6 a4 b7 c4 b3 a3 f6 g6 f7+ Ke7 f5 a2 h7 c3 f6+ Kd7 Ne2 e3 Bh3 Ra6 Ba3 Nh6 Qc1 Bc5 Kd1 Ra4 Kc2 Be7 f8R Qb6 f7 Qb4 Ng3 Qd6 Rg8 Ra8 f8Q Qe6 Qf4 Bc5 Qg5 Bd4 Rg7+ Ke8 Bd6 Nd7 b8N Nf6 Na3 Qe7 Re1 Kf8 Nb5 Rg8 h8Q Ra4 Be5 Qe8 Nc7 Be6 Nh1 g3 Bg4 g2 Bh2 g1Q Ng3 Rb4 Rf1 Qh1 Rf4 Qf3 Qh7 Nf7 Qhh4 Nh6 Re4 Bc8 Re6 Rc4 Ra6 Be6 Ra3 Bd7 Bh5 Bh3 Qe4 Ra4 Bg4 Rb4 Rb1 a1Q Ra8 Qa6 Ra1 Qaf1 Kb1 Qg1 R1a3 Rb6 Ka1 Re6 Kb1 Re5 Ra1 Rf5 Ka2 Rf4 Ra3 Rf5 Qh5 Rg5 Nf1 Bb6 Bc8 Rg3 Qg5 Bc5 Bg4 Rg2 Ng3 Bd4 Ne6+
B1k1BN2/2Q5/2Bn2p1/P3brq1/2nRp2q/3QP1R1/KPp1b1qN/1N1Rr3 b - - 0 1 illegal: No proof kernel
R1K1Qn2/Q3r1B1/2Pk2p1/3p1PR1/NnN1P3/1Rbq1b2/Q1B1pb2/2r1q2B b - - 0 1 illegal: No proof kernel
Rn6/bB1N2R1/P1P4Q/2Qq1pb1/NKppN2B/1nP2r2/1rk2RQ1/2q3n1 b - - 0 1 legal: proof: f4 c5 g4 a5 b4 axb4 d4 h5 gxh5 e5 fxe5 b6 d5 Ba6 Kf2 Bb5 Ke1 Bc6 dxc6 Qg5 Bf4 Qf6 Bc1 Qd8 Kd2 Ke7 h4 Ke6 e4 g5 a4 f5 h6 d5 h5 c4 a5 b3 Kc3 g4 h7 b2 h6 b5 a6 g3 Nd2 b1Q Ne2 g2 Rh2 g1B Rf2 Bh2 Bg2 Bf4 Qf1 Ke7 e6 Kf6 e7 Ke5 e8N Bc5 Nf6 Bg5 Ba3 Ba7 Be7 Qd1 Kb4 d4 Nc3 Qc1 Na4 Qd5 Bf3 Kf4 Qg2 Ke3 Nd7 Nf6 Ra2 Rg8 h8R Ng4 h7 Nh2 Bd8 Re8 Rg8 Re7 h8Q Rh7 Rg7 Rh3 Qh6 Rg3 Rb2 Rh3 Bd1 Nf3 Be2 Ng1 Bf3 Bf4 Bh4 Bg5 Bh5 Rf3 Be8 Qe1 e5 Qd1 e6 Qc1 c3 Kd3 Rb1 Kc2 e7 Bb6 Rb3 Ra7 Bf7 Rb7 e8Q Ba7 Qf8 Rb6 Qc5 Rb7 Ka5 b4 Rb1 b3 Be6 Bb6+ Kb4 Ba7+ Ndb6 b2 Bc8 Re7 Nd7 Re2 Ra1 b1N Bb7 Bf4 Ra3 Be3 Rb3 Bg5 Nf1 Nd2 Rb1 Nb3 Nd2 Qf1 Re1 Re8 Ree7 Qc1 Ref7 Re1 Rf8 Re2 Ndb6 Nd7 Ra8 Nb8 Nd7 Kd3 Nf1 Rb2 Nd2 Kc2 Ne4+
Q4r2/1RnBn2K/pq1RP2B/6Q1/3Q2NN/PP2r1qb/pbk3p1/4R1Nb b - - 0 1 legal: proof: g4 d5 f4 b5 c4 h5 gxh5 e6 cxd5 e5 fxe5 b4 a3 Bd7 Qb3 Bc8 Qa2 b3 Bg2 bxa2 Bh3 Nc6 Bf1 Nb8 Kf2 Kd7 Kg3 g5 Kg4 c5 Kf5 g4 h4 g3 d4 a6 e4 c4 b3 c3 d6 Kc6+ e6 f6 Kg6 f5 e5 Kd5 e7 Ke4 e8N c2 h6 f4 h5 f3 d7 f2 e6 Bg7 h7 Bh6 d5 Qa5 d8Q Bd2 h6 Bd7 d6 Qb6 Bb5 f1B Qg5 Bc6 d7 Bc3 d8R Bh3 Rd6 Nf6 Bf4 Bb7 Bd7 Nd5 Nd2+ Kd3 Re1 c1Q Ndf3 Bb2 Nf6 Qcc7 Nh4 Nc6 Ng4 Kc2 Bc1 Rhc8 h8Q Nce7+ Kh7 Rf8 Bf4 Rac8 Qd4 Qb8 Bd2 Nc7 Rh2 Bd5 Rf2 Bdg2 Rf7 Bh1 Rf5 g2 Qgf6 Qb4 Rb6 Ne8 Rb7 Bc1 Rd5 Rf7+ Kh8 Qg3 Rd6 Rc3 Qg7 Nc7 Qg8 Rc5 Qa8 Rg5 h7 Re5 Bh6 Bb2 Qf4 Qb6 Qg5 Rf3 Kg7 Rf2 h8Q Re3+ Kh7 Rf8 Qd4
RN2rB1b/1n2pb1K/B3P2N/2B1r2Q/1Pn1p1RP/1NQR1q1p/2k2q2/2b5 b - - 0 1 illegal: No proof kernel
n1K2Q2/3P1NnR/Rp1RB2b/7Q/2bpP2r/4N1B1/rp1k1P1q/NB1q1b2 b - - 0 1 illegal: No proof kernel
N6R/2p2n1N/3b1KBQ/4Q1N1/1Pq3p1/3q1n1b/1p1r2PP/rBBR1Rkq b - - 0 1 illegal: No possible last move, all moves rejected
1r3b1Q/k1pP3q/2qb1n1P/N5B1/1R3pRn/QnPp2QK/BBN5/1r1N4 b - - 0 1 illegal: No proof kernel
5k2/rpq5/R4P2/1qNbBB1Q/1qPn1Q1K/2R1p2N/Nn1PpQ2/b5Rr b - - 0 1 illegal: No proof kernel
nn1N1Rk1/PRbrnqB1/q1p1R2r/4N2Q/1P2p3/B1P3B1/p1b4K/1N4Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1N2Q1Bk/p3PR2/Q2n1b1K/R1n1q1PP/4Nrr1/1p1Bpbq1/1B3b2/5R1N b - - 0 1 illegal: No proof kernel
n1N1KQ2/p3pr1Q/k1nbPR1Q/2PPq3/B1B1pb1N/6q1/r3RR2/4Br2 b - - 0 1 illegal: No proof kernel
1N1R2K1/p1Bp2BR/Qn1p1brq/1N2B2r/bk1P1q2/N1n1P3/P2q1Q2/1R6 b - - 0 1 illegal: Other
3q3R/pkP1p3/1N1P1nqr/3QNNBp/2R1BK2/4PQ2/r1bR1n2/1b1Q2q1 b - - 0 1 illegal: No proof kernel
rQn1Bbn1/1N1r2p1/QQBN3k/B1r2rpN/1p2b3/5RP1/K1PP2q1/7R b - - 0 1 illegal: No proof kernel
5RBK/3RRP1n/rbbB1n2/B5QQ/3b4/q1p3pP/Q3pNP1/bkN1r3 b - - 0 1 legal: proof: c4 b5 e4 h5 Qxh5 d5 cxd5 b4 Qh7 b3 axb3 f5 b4 fxe4 b5 Bd7 Be2 Bh3 Bf1 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 a5 f4 g5 b4 e6 f5 g4 h3 a4 d6 c6 b6 a3 b7 a2 d7 e3 b5 g3 b6 e2 Qh5 e1B Nc3 Ba3 Bc4 Rh7 Nd1 Bb4 Nf2 Rh8 Ba3 Qe7 d8B Bd7 Rd1 Ba5 Bd6 Ra6 Ne2 a1B+ Ke4 c5 d4 e5 d5 Bc6 Nc1 Nd7 b8Q B5c3 b7 Bd4 Qa8 Ba5 b8R Nf8 Rhe1 Bb6 B8c7 Nh7 Rf8+ Qf7 Bb3 c4 Re3 c3 Qa7 Ra2 Qa4 Re2 Qa2 Re1 Bc4 Ba7 Ba5 Bab6 Qf3 Kg5 f6 Qa7 Qfe2 Kh4 Kf5 e4 Ke6 Kg5 Rdd3 Qa6 Kf7 Kf5 Kg7 Qa8 Bb8 Qa6 d6 Qa8 Qd1 Ke5 Re2 e3 d7+ Kf5 d8Q Qa6 Nh1 Ke4 Bd6 Qa8 Bab4 Qa3 Ba5 Ng5 Be6 Rh6 Rdd2 Nh7 Kh8 Ne7 Bg8 Nd5 Qc7 Rg6 Qg7 Rh6 f7 Ndf6 Qg5 Rg6 Rf2 Rh6 Qdh5 e2 Rf4+ Ke3 Nf2 Rg6 Rb2 Rh6 Rb5 Rg6 Rd5 Rh6 Qc4 Kd2 Re4+ Kc2 Re7 Kb1 Rde5 Nd5 Rd7 Re6 Qa6 Ndf6 Qa7 Re8 Ree7 Ra8 Qa6 Ra7 Qc4 Ra6 Qa2+
bR1qBb1n/P2Q1R2/QP1B1pN1/K1Q1b2b/6Nr/4p1P1/5pR1/1nkr2N1 b - - 0 1 illegal: No proof kernel
2r3nn/r2p1NnQ/1q2p1p1/1BQ1b1N1/q3Pk1K/2RBP2P/2q5/1NR2RB1 b - - 0 1 illegal: No possible last move, all moves rejected
1K4B1/2p1nq2/5q1P/bRPR1b2/QPN1B2B/p2rq2n/b1Q3p1/3N1NRk b - - 0 1 illegal: No possible last move
2Bn2QN/1p3qnn/B3q3/bPpRp2k/R1P1P1r1/1N2QbB1/8/RK3Nb1 b - - 2 3 legal: proof: h4 g5 hxg5 d5 e4 a6 Bxa6 d4 Bc4 Ra3 Bf1 Re3+ fxe3 dxe3 g4 f5 b4 Kf7 a4 Kg6 d4 c5 a5 e5 a6 h5 a7 h4 a8R e2 Kd2 f4 d5 f3 d6 h3 d7 f2 Qe1 h2 R8a4 Qa5 d8N Bd6 Nf3 Qa6 Nd4 Be7 Nf7 Bf5 Nb3 Rh4 Nh8+ Kg7 c3 Nc6 Kc2 Bd8 g6 Nf6 g5 Ba5 N1d2 Nd8 Kb1 Rg4 Bh3 Be6 Nf1 Nh7 Bf4 Qb6 Qd2 e1B Bg3 Bf5 Qe3 Qe6 Rg1 h1N Rg2 Rf4 Rg1 Bg4 Rg2 Bf3 Rh2 Qd6 Bc8 Qe6 Rh3 Rg4 Rh2 Kf8 g7+ Ke7 g6 Kf6 g8Q Bd2 Qd3 Kg5 g7 Be3 Rh6 Bd4 Rg6+ Kh5 Qe3 Qe7 Rd6 Qe6 Bh4 Ng3 Rd5 Nf5 Bg3 Qg6 Qe6 Qf6 g8B Ng7 Bf7+ Qg6 Be8 Qf7 Bb5 Qd7 Qg8 Qe6 Qd2 Be3 Ba6 Bd4 b5 Be3 Nh2 f1Q+ Qc1 Qc4 Nf1 Bg1 Qe3 Qf7 Rd3 Qcd5 c4 Qde6 Rd5
B5R1/Q2rPK2/k2Bpp1B/3Nq3/b2rnN2/1Q1NpPRq/1q3Pn1/2n4R b - - 0 1 illegal: No proof kernel
3B1r2/2P2b2/4BN1p/qB1n4/1pN1RPQb/1n1b1qQK/4k1pP/4qRRQ b - - 0 1 legal: proof: d4 b5 b4 a5 f4 f5 g4 c6 gxf5 Ba6 e4 c5 dxc5 axb4 e5 Bc8 Be3 Ra6 Bc1 Rf6 exf6 Qc7 Qd6 Qa5 Qd1 Qd8 Kf2 b3 Kg2 Kf7 c4 e5 a4 d5 a5 g5 c6 d4 c5 d3 a6 g4 a7 b4 a8Q b2 Nh3 e4 Nf2 h6 Na3 b1B Rg1 g3 Bb2 e3 Kh3 e2 Ng4 d2 Be5 Ne7 Bc7 Qd5 Bd8 Be6 Qb3 Qe5 c7 d1Q c8B Na6 c6 Qa5 c7 Nc5 Qh1 g2 Qg3 Nb3 Bd7 Nd5 Bc8 e1Q Bb5 Qf1 Nc4 Qff3 Bcd7 Be4 Rb1 Qd2 Rbf1 Be7 Bc8 Qe1 Bcd7 Kf8 f7 Kg7 f8R Bh4 f6+ Kg6 f7 Kf5 Re8 Bd3 f8Q+ Ke4 Qg7 Rf8 Qg6+ Kd4 Re7 Bf7 Nf6 Kc3 Qg4 Kc2 Re4 Kd1 Ne3+ Kd2 Be6 Ke2 Nc4+
3Bbn2/1rN4Q/2BRb1R1/PnK2nr1/2pQ3R/1kP5/1N2ppPB/4Q1br b - - 0 1 legal: proof: f4 d5 b4 g5 fxg5 a5 h4 axb4 e4 Ra6 exd5 Qd6 h5 Qg6 hxg6 Ra8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 a4 b5 g7 f5 d3 c5+ Ke3 e5 a5 f4+ Ke4 c4 d4 f3 g6 h4 Be2 h3 Ra3 h2 Nc3 b3 Nh3 b2 Bf4 b1N Na4 b4 Ng5 b3 Qe1 b2 Ne6 Rh7 Rd3 Nd7 Nc7 Nh6 g8Q Na3 g7 b1B Nb2 Nb5 c3 Nf5 Qh8 Be7 g8R Nf8 Rg5 Be6 Rg6 Bc2 Bd1 Ba4 Bc2 Rh5 Qh7 Rg5 Rd2 Kd7 d6 Kc6 d7 Ra7 d8Q Rb7 d5+ Kc5 d6 f2 d7 Bd6 Rg1 h1R Bh2 Kc6 Qf6 Kc5 d8B Kc6 Kf3 e4+ Ke2 e3 Be4+ Kc5 Bc6 Bg3 Kf3 e2 Ke4 Bf4 Rd6 Be5 Bg3 Bf4 Bh4 Bh2 Bg3 Rh5 Rf1 Bg1 Bh2 Rg5 Qb1 Na3 Rfd1 Ne7 Bd5 Bb5 Rd4 Be8 Qe1 Nf5 Ke5 Ra7 Rh4 Rb7 Na8 Kb5 Bf3 B6d7 Kd5 Bc8 Qd4 Bcd7 Nd1 Ka4 Kc5 Kb3 Nb2 Nb5 Nc7 Be6 Bc6
r1N4B/2pPQQ1p/3rNRp1/2k3n1/B2b3b/1n1PrBPQ/b4R2/2n1R2K b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Be7 h5 Bf8 h6 Qd6 Nf3 Qe5 Ng1 Qg7 hxg7 Be6 Qa4 Bg4 Qd1 Bc8 Kf2 Ke7 b4 Kd6 e4 f5 b6 a5 b5 f3 b7 f4 b6 a4 e5+ Kc5 d6 a3 d7 a2 e6 Ra6 g3 Ne7 g8Q Kd6 Qf7 Kc5 Bb2 Ra7 Qe2 Ra6 Na3 Ng8 Nc4 Nh6 Nh3 Ra3 Kg1 Na6 b8R Be7 b7 Re3 Nb6 Bh4 Re1 a1B Ng5 Nb4 Bg2 Nd3 Rh2 f2+ Kh1 f1N Bf3 Nc1 Rf2 Rd8 Bh8 Bd4 Ra8 Re8 b8Q Bb7 Qf5+ Bd5 Nc8 Nf7 Qh3 Ba2 Qb3 Rf8 Ra6 Rd8 d3 Nd2 e7 Re8 Qbe6 Ndb3 Rd6 Rf8 e8B Rg8 Qef1 Rf8 Qe7 Rg8 Bc6 f3 Ba4 Rf8 Rg2 f2 Rf6+ Kd5 Ne6 Ng5 Bf7 Rg8 Qg1 f1R Rc2 Rf2 Qgf1 Re8 Rb2 Rc2 Bg8 Rc6 Rbf2 Rd6 Nd8+ Kc5 Bd5 Bb2 Bf3 Rf8 Qhe6 Rg8 Q6f7 Bd4 Ne6+ Kb4 Ng7 Kc5 Qh3 Rd8 Na7 Rb8 Nc8 Ra8 Ne6+
QN1K2QN/Q6p/N2Bb2P/Rqnrp3/Pk4p1/4P1RB/6rb/1rr3rB b - - 1 2 legal: proof: d4 a5 c4 c5 b4 axb4 g4 f5 gxf5 d5 cxd5 c4 Ba3 Nd7 Bc1 Nc5 dxc5 Qc7 Bh6 Qd6 Bc1 Qd8 Kd2 Kd7 Ke3 b5 Kd4 g5 Ke5 c3 h4 b3 f4 b4 h5 c2 d6 Kc6 e3 b2 h6 g4 d7 b3 Ke6 Ra5 f6 Bg7 f7 Bc3 f8N Nf6 f5 Ra7 Nf3 Ra5 Nd4+ Kb7 c6+ Kb6 c7 Kc5 Na3 b1R Rh3 b2 Nab5 Be1 Nc6 Ra4 Rg3 Bc3 Ng6 Be5 Nb8 Ra8 Bh3 Bb7 c8B Bc6 Nc7 Bc3 Bb7 Ne4 f6 Qe8 d8Q Kb4 f7 Be5 f8Q Ra6 Qg8 Bd5+ Kf5 Bf7 Q1d7 Nc5 Bh1 Be6+ Kg5 Rd6 Q8c8 Rc6 Qa6 Rd6 Qa8 Rd2 a3+ Kc4 Ra2 Rg2 Qda4+ Kc3 Q4a7 Qb5 Bd2+ Kc4 Bb4 Rbg1 Ra1 b1R Ra2 Na4 Bd6 c1R Ra1 Nc5 Ra2 Bd5 Ra1 e6 Ra2 Bf4+ Kf6 e5 Ke7 Be6 Kd8 Kc3 a4 Kb4 Rd2 Bc8 Rd5 Be6 Rf3 Bh2 Rg3 Qe2 Qe8 Rf8 Nh8 Rff1 Qg8 Rfd1 Rd2 Qc4 Rc2 Rd5 Rb2+ Kc3 Rb5 Qe2 Ra5 Qb5 Qb6 Kb3 Qba7 Kb4 Nca6+
B3R1b1/2r1q3/bKp1kr1b/6p1/2P2N1p/BRPQ1b2/P2R1Q1n/1bN1B2N b - - 0 1 illegal: No proof kernel
NB2k2b/R1bn3n/pqQNB1rp/2Q1P1PQ/P1RB2K1/1b6/b5bp/2N5 b - - 0 1 legal: proof: f4 c5 e4 b5 h4 g5 b4 gxh4 bxc5 e5 c6 d5 exd5 a6 d6 e4 Ba3 Ra7 Bb2 Re7 Bc1 Re5 fxe5 Bh3 Bc4 Bf5 Bf1 Bc8 Ke2 f5 g4 e3 Kf3 e2 a4 e1B d4 b4 c4 h3 c5 b3 c7 b2 c6 f4 g5 h2 d7+ Ke7 d5 Bb4 d6+ Kf7 Kg4 Be7 Nd2 b1B Ne2 Bf8 Ne4 Bg7 Be3 Bf6 Bd4 Ne7 Bh3 Ba2 Rc1 Bg7 Rc4 Nd5 Nc1 Bb7 c8Q Rg8 c7 Ba5 Qg1 Qf6 d8B Bh8 d7 Qb6 Nd6+ Kf8 Qe3 Rg6 Qa3 Ba8 Qc5 f3 Rd1 f2 Qb7 f1B c8N h6 Qbc6 Bc3 Bc7 Bg2 Rd3 Ba5 d8Q+ Kg7 Rf3 Nd7 Qe8 Bb7 Bb8 N5f6+ Kf5 Nh7 Kg4 Qb2 Rf4 Bc7 Nb6 Bc8 Na8 Qb6 Qe6 Bb7 Rf7+ Kg8 Qf3 Be4 Qed5 Bc2 Qdc6 Bd1 Kf5 Bdb3 Qh5 Bh1 Rg7+ Kf8 Kg4 Bg2 Rg8+ Ke7 Rc8 Bd8 Rc7 Kf8 Ra7 Bc7 Kh4 Ke7 Be6 Kf8 Kg4 Ke7 Nc8+ Ke8 Nd6+
8/Qp2Q3/1b2B1Rp/rP1nQ2P/nPKnB3/k2Nr1Bp/4q2r/R2nRN2 b - - 0 2 legal: proof: e4 f5 exf5 d5 b4 d4 h4 g6 Qh5 d3 cxd3 Bd7 d4 Ba4 d5 Bb3 axb3 Kf7 Qg4 g5 h5 Ke8 Qh4 gxh4 b5 Kd7 Ke2 a5 Kd3 Kd6 g4 Kc5 f4 Kb4 g5 e5 d6 c5 d7 h3 g6 h6 g7 a4 f6 a3 f7 a2 f5 Qg5 d8R Nf6 g8B Nbd7 Bg2 Rc8 Nf3 Nh7 f6 Nb6 Rd6 Qg4 Ne1 Bg7 f8Q e4+ Kc2 c4 d4 e3 d5 e2 f7 c3 Kd3 c2 Nd2 Rd8 Rb1 a1R Qe8 Bd4 Rg6 Nf6 f8Q+ Rd6 Qg7 Ra5 Qa8 Na4 Ra1 Bb6 Qa7 Re6 Bf7 Rf8 d6 Nd5 d7 Re4 Be6 Rf2 Bf3 Rh2 d8Q Qg2 Bb2 Qf1 Be5 c1N+ Kc2 Na2 Kd3 Qg2 Bg3 Ka3 b4 Re3+ Kc4 Qf2 Nd3 e1N Qgh8 Nc2 Qe5 Nd4 Rhe1 Qf1 Qe7 Qe2 Rab1 N2c3 Be4 Nd1 Nf1 Nf5 Rc1 Nd4 Ra1+
2Q1bn2/p1n5/2N1Nq2/n1NQ1P1R/PP2B1QB/r2pk2K/3b2pR/1n1R2b1 b - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 bxc4 h3 f5 gxf5 g4 h4 Na6 Nh3 Rb8 Ng1 Rb6 Na3 Rg6 Nb1 Rg5 hxg5 Ba3 Nc3 Bd6 Nb1 Bf8 a4 Kf7 b4 h5 e4 d5 f4 c5 Kf2 h4 Kg2 g3 f6 Ke6 g6 d4 f7 c3 g7 c2 Qe1 c4 Qd2 c3 Bd3 Bd7 Ne2 Nf6 g8Q Nh7 Kh3 g2 Qg3 Bc5 Rh2 Qf6 f8R Be8 Qg4+ Qf5 Rg8 Nf8 Rg5 Nc7 Rh5 Rg8 Bb2 c1N Qd1 c2 Nd2 Rg5 Nb3 Rg7 Bc3 Rf7 Be1 Rd7 Na5 Nb3 Nc6 c1B Nc3 Na5 Qf3 Bd2 Rd1 Kf7 e6+ Kf6 e7 Rd6 Bb5 d3 Bg3 Bg1 e5+ Ke6 Ne4 Kd5 Bf2 Qf6 f5 Rd8 Ba6 Rc8 Bb7 Kc4 e6 Kd5 Qg6 Kc4 Nc5 Kc3 Kg4 h3 Bh4 Kc4 Qd5+ Kc3 Rh1 h2 Kh3 Kc2 Qg4 Kc3 Qd8 Kc2 Nb8 Kc3 Be4 Kc4 Qd6 Kc3 Qc6 Kd4 Qd5+ Ke3 Nc6 Bf2 Rhg1 h1N Rgf1 Ng3 Rh1 Nf1 Rh2 Bd7 e8N Bg1 Ng7 Be8 e7 Ng3 Qc4 Ne2 Qf7 Nc3 Nge6 Nb1 Qfg8 Rd8 Qf7 Rd4 Qfg8 Rc4 Qf7 Rc3 Qfg8 Bd7 e8Q Ra3 Qc8 Be8 Qf7 Rc3 Qfd7 Ra3 Qd5
Q3K3/4bNNN/RpR1n2r/p1qr4/1rB4r/P1k2n2/1P2npPB/1Q3RB1 b - - 0 2 illegal: Other
1Q1R1b1N/p2Bnb1Q/1PpB4/1nK5/N2rRN1q/1RP1Q3/P3pb2/kn5b b - - 1 2 legal: proof: e4 f5 exf5 b5 g4 h5 gxh5 b4 Bb5 Na6 Bd3 Rb8 Bf1 Rb5 Qg4 Rc5 Qd1 Rc3 dxc3 b3 Qd2 bxc2 Qd4 Nc5 Qd1 Na6 Kd2 Kf7 Kd3 Kf6 Kd4 d5 h4 g5 f4 e6 b4 g4 h6 c6 h7 g3 h5 g2 h6 Qd6 b5 Nc7 b6 Ne7 Qe1 Qd8 Rh4 e5+ Kc5 d4 Qe3 e4 Ne2 g1B Ba3 c1N Nd2 d3 Nb3 d2 Bh3 d1B Rb1 Nb5 Rg4 Rg8 h8N Be6 h7 Bf2 Bb4 Rg6 Rb2 Bf7 Rb1 Kg7 f6+ Kh6 f5+ Rg5 Nf4 Bf3 Rg1 Bh1 Re1 Rg4 Re2 Kg5 Rbb2 Bg6 f7 Kf6 Ba3 Ke5 f6 Rh4 Bd7 Bh5 Kb4 Rg4 Nc5 Nb3 Re1 Nd2 Na4 Nb1 Rb3 Bg6 Kc5 Bh5 Rd1 Bg6 Rd4 Bh5 Qg3 e3 Qh3 e2 Qd3 Bh6 f8Q Rh4 Qg8 Bf8 f7 Bg6 Ne6 Bh5 Qe3+ Kf5 Rc4 Rd4 Qgg3 Bg6 Qb8 Bh5 Qd2 Ke4 Nf4 Bg6 Qc1 Bh5 Qg1 Ke3 Qg3+ Kd2 Qe3+ Kc2 Bb4 Bh6 f8R Bf7 Re8 Bf8 Ba3 Rd2 Re4 Rd4 Bb4 Qc8 Rd8 Qc7 Nd3 Qh2 Nf4 Qh6 Nhg6 Qh3 h8Q Qh4 Qh7 N1a3 Nb2 Kb1 Nh8 Ka1 Na4 Nb1 Ba3 Rd5+ Kc4 Be8 Bd6 Bf7 Kb4 Rd4+ Kc5
2rQ1nN1/QB1Bp1Kb/4P1p1/q2rQqnp/1R2PrR1/1NR4r/P7/3k2B1 b - - 0 1 illegal: No proof kernel
3n4/3p2KP/pQRR1P2/P2Q3N/B1Qrn1b1/1NR1nnq1/3qrB1p/4k2N b - - 0 1 illegal: No proof kernel
q1k3N1/4n1QP/8/1BK1p1nb/p1R1b1pn/1qB1Pn2/2BrR1P1/2Q1NQ1N b - - 1 2 illegal: No proof kernel
2B1Q3/2p2N2/7Q/q1q1pk2/1qNQpB2/1b1PnPRR/3rPr2/2N1qRKn b - - 0 1 illegal: No proof kernel
N1Nb2R1/1q1pPbQr/4pB2/1p1P1R2/4N1q1/Pkb1Q1QB/1n4b1/1KRn4 b - - 0 1 illegal: No proof kernel
b1bRqb2/1P1Q2P1/1pN1q1rB/1K6/1P1N1n2/6N1/pQr1p2B/kb1R2RB b - - 0 1 legal: proof: h4 g5 a4 gxh4 c4 f5 e4 d5 exf5 b6 cxd5 Na6 a5 Nc5 a6 Rb8 b4 Bb7 d4 Ba8 f4 Nb7 axb7 Kf7 Kd2 Kf6 Kd3 e5 Kc4 c5 g4 a5 d6 h5 d5 e4 d7 a4 d6 a3 Rh2 e3 Qc2 a2 Qg2 e2 Rh1 h3 Nf3 h2 Rg1 h1B Nd4 h4 Qd5 h3 Nc3 h2 Kb5 c4 Bg2 Rh6 Bf3 Qe7 d8R Qe6 d7 Rg6 Qd6 Bg2 g5+ Kg7 Bc6 h1B Ne4 c3 Ng3 c2 f6+ Kf7 f5 Rc8 Bb2 Bh3 Rad1 Be4 Bc1 Qe8 Bf4 c1Q Qc7 Bb1 Bh1 Qa3 Qc1 Rc2 Qb2 Ne7 Bd6 Kg8 f7+ Kg7 Bb8 Nd5 f6+ Kh7 Be5 Nf4 Nc6 Qb3 Bb8 Be7 f8B Qe6 Bh6 Bf8 f7 Rg7 Ne4 Kg6 Bc7 Kf5 g6 Bd6 Nd4+ Ke5 f8Q Kd5 Qf7 Bf8 Ka6 Kc4 Ng3 Bf5 Qe7 Rf7 g7 Rf6 Rc8 Bg4 d8N Rg6 N8c6 Bh3 Qc1 Kc3 Rd8 Qb3 Qd2+ Kb2 Kb5 Bc8 Qd7 Ka1 Ne4 Ne6 Bh2 Nf4 Ng3 Qbe3 Qc1 Q3e6 Qb2+
n1BR3Q/2Q2R1q/1Rb1n2q/pp2r1N1/8/P2P1B2/n1N1P2p/bkn1BKQ1 b - - 0 1 legal: proof: h4 e5 b4 d5 c4 a5 cxd5 g5 hxg5 b6 f4 exf4 b5 Ra6 bxa6 b5 g4 Kd7 g6 Kd6 a3 Ke5 a7 Kd4 a8Q h5 d3 f5 g5 c5 d6 f3 d7 c4 g7 h4 g6 f4 Nd2 Kc3 Rb1 h3 Qd5 h2 Qf7 Qf6 d8Q Ne7 g8B Nbc6 g7 Rh5 Rb4 Re5 Nb3 Nd4 Qfe8 Bd7 Kf2 Qh6 Bh3 Nc8 Qde7 Ne6 Nc5 Bc6 Kf1 f2 Nb3 Nb6 Na1 Na8 Qc7 Be7 Rb2 Bf6 Nf3 Qh7 Nc2 Qh6 Kg2 f1N Kf2 Ne3 Qg1 Qh7 Ng5 Nd5 Kf1 f3 Be3 Qh6 Bf2 Nb4 Qed8 Kd2 Be1+ Kc1 Bh7 c3 g8R f2 Be4 Bg7 Bf3 Na2 Qdb8 Bf6 Rd8 Bg7 Rb4 Bh8 Rbd4 Kb1 R4d6 Bg7 Ne3 c2 Bhg4 c1N Nc2 Be8 Rb6 Bd7 Bb7 Bc6 Bf3 Qh7 Rd6 Qh6 Qh8 Qh7 Bc8 Bf6 Kg2 Qh6 Rd8 f1Q+ Kg3 Qfh3+ Kf2 Qf5 Kf1 Qfh7 Kg2 Nc3 Qf2 Q7g6 Bd5 Rf5 Rf1 N3a2 Qg1 Ba1 Rf2 Qg8 Kf1 Re5 Rf7 Qgh7 Bf3
1BNQn2r/1p2b1bk/1N1r2pp/2Q5/1Nb2RBP/3P3R/R1b1nK1P/2r2B2 b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 e5 fxe5 Nh6 g3 Qh4 gxh4 Ng8 e4 c5 a4 f5 d3 Kf7 a5 Kg6 d6 c4 d7 h6 d8Q c3 a6 c2 a7 b3 e6 f4 e7 b2 e8B+ Kh7 e5 f3 e6 g6 e7 Bg7 Na3 b1B Kf2 Bf5 Nh3 Be4 Nf4 Be5 Nb5 Nf6 Ra2 Bb2 Nd6 Nc6 Nd5 Nd4 Nb4 Bd5 Bd7 Ne8 Bf4 c1B Qc2 Bc4 Nc8 Ne2 Bb8 Bg7 Bg4 Bg5 Rg1 B5f6 Rg3 Bg5 Qc1 Bc2 Rh3 B5f6 Bg3 Rb8 a8N Bg5 Nab6 B5f6 Ke3 f2 Bc7 Ra8 Bb8 Ra5 Kf3 Rd5 Qg5 Rd6 Qc5 Nc7 e8R Be7 Rf8 Ne8 Bg2 f1R+ Ke3 Ng3 Rf4 Rc1 Bf1 Ne2 Kf2
1B1NBrNN/3P1n2/1b3br1/2p2pR1/1Q1B2nK/1bP1p2Q/1kPQ4/b1R4r b - - 0 1 illegal: No proof kernel
1k1r2nQ/2Pr4/1r1p1pBN/3PR3/1nnK1Np1/r7/1B1R1P1n/Qq3BNQ b - - 0 1 legal: proof: g4 b5 b4 c5 e4 h5 e5 hxg4 e6 d6 a3 g6 Be2 Bg7 Bf1 Bd7 exd7+ Kf8 bxc5 b4 Qf3 b3 Qe2 Bc3 Qd1 Bb4 axb4 Qc7 Qf3 Qa5 Qd1 Qd8 Ke2 a5 Ke3 e5 h4 Ke7 d4 e4 c4 g5 b5 a4 b6 b2 b7 a3 d5 a2 h5 g3 h6 g2 h7 f6 c6 g4 c5 Ra6 c7 Rb6 c8B Nc6 b8Q Nb4 Kd4 e3 c6 e2 Rh5 e1R Nc3 b1N Nce2 Na3 Nf4 Nc4 Qa7 Re6 Rb1 a1R Rb2 Ra3 Rd2 Qf8 Rg5 Kd8 Bb2 Re7 Re5 Rf7 Qa8 Kc7 d8N Rd7 Nf7 Qd8 Qa5 Kb8 Nh6 Qe8 Qf3 Qg6 Qh3 Qb1 Qh1 Rf3 Qa1 Ra3 Nge2 g1N Ba6 Nh3 Ng1 Ng5 Bc8 Re7 Bf5 Rd7 B5d3 Nf3+ Ke4 Nh2 Kd4 Ne7 Bg6 Rhd8 h8Q Ng8 c7+
n3BNR1/r1k1bKR1/rB2rPP1/1P1n1Q2/QNp5/1b4pq/2Rp2Np/6Q1 b - - 0 1 illegal: No proof kernel
3B3Q/3N1bP1/3Q2N1/K1pr4/P2npQ2/p1R1BBr1/Rb2pbP1/n2kR1q1 b - - 0 1 illegal: No possible last move, all moves rejected
3N3Q/5P2/q5BP/r1R2RPB/1rpBbNQ1/2p1p1k1/1b2K1np/N1R1n1b1 b - - 0 1 illegal: No possible last move
1brNkRnr/3NpN1B/P1p2P1B/6q1/n3nPpQ/1p2Rb2/1B1Q4/Q1K5 b - - 0 1 illegal: No possible last move, all moves rejected
RB1n2r1/BQNpq2r/npN4b/1PR2p1Q/5N1P/5P1p/1B2n1R1/2kb3K b - - 0 1 illegal: No proof kernel
3rQ3/Pp3PNn/1BB2p2/1b1BQ1R1/bK1n1p1p/1N4N1/kb1P2R1/qQ1r4 b - - 0 1 illegal: No proof kernel
6kn/p2rp3/4b1qB/n1KR4/QpP3B1/N5P1/bPNR1pQN/1QR1r1r1 b - - 0 1 illegal: No proof kernel
2N1BQQR/3Rp1n1/3pN3/bB1r1p2/P2bP1R1/3q1PKB/1p3n1r/1k2N2q b - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 Nh6 bxa5 Ra7 g4 Ra6 g5 Ng8 g6 Ra8 Kd2 f6 Nf3 h6 Bg2 b6 Rf1 Bb7 Ng1 Bd5 Ke1 Bf7 Bg5 hxg5 Bh3 Qc7 gxf7+ Kd8 Nf3 Kc8 Rh1 Kb7 Bf1 Qd8 Ng1 Kc6 h4 Kb5 e4+ Ka4 c4+ Kb4 a4 b5 a6 g4 h5 g5 f3 g3 h6 g4 a7 g2 Kf2 Nc6 h7 Bg7 f8Q Ne5 c6 Nh6 c7 Nf5 Qd5 Kb3 c8B Kb2 c5 b4 c6 b3 Ne2 g1B+ Kg2 g3 c7 Ng4 Nf4 Be3 Ne6 Bb6 Rg1 Nf2 Bb5 Ba5 Na3 Rb8 a8B Rb6 Qc4 Rd6 Rad1 Rd5 Bac6 Ka2 Kf1 g2+ Ke2 Kb2 Nc2 Ka2 Rd2 Kb2 Ne1+ Kb1 Rd4 b2 Rd3 Bh6 Qb3 Be3 Rd2 Bd4 Rd3 Rg8 h8R Rg7 Qc4 Rh7 Qb3 Ng7 Qc4 Be5 Ke3 Bec3 Kf4 Rh2 Kg3 Bd4 Qc1+ Ka2 Qg5 Kb1 Qg4 Ne8 Qgg8 Ng7 Bca6 f5 c8N Qb6 Rd2 Qb7 Bf1 Qb3 Bab5 Qd3 Rc2 d6 Be8 Qe2 Rc7 Qc4 Rd7 Qd3 Rh1 g1Q+ Bg2 Rh7 Rh4 Qh1 Rg4 Rh2 Bh3
1R5B/2qp1Rp1/R4nPQ/6Np/2B1p3/5QrP/n1bnPQ1b/kb1NKB2 b - - 1 3 illegal: No proof kernel
1b1q1b1B/RpP1R3/2Q1QPp1/qnrB1QP1/Nrk5/3bp1RN/N5pK/8 b - - 0 1 illegal: No possible last move, all moves rejected
2qB1r1r/1B1P4/K3Rnn1/1n3b1q/1R2p1Np/3Qp2p/P1Q1P3/Q2NkRB1 b - - 0 1 illegal: Other
QN1Rrqq1/K1Rb1qn1/b7/p3P2B/3pB1Q1/2pN1nB1/2PPpR2/k1N5 b - - 0 2 legal: proof: e4 a5 h4 g5 a4 gxh4 Rh2 b5 axb5 d5 Rh3 d4 Rh1 Ra7 Nc3 e5 Nb1 Ra6 f3 Rd6 f4 Rd5 exd5 e4 Ra2 Bg7 Ra1 Be5 fxe5 Qd6 Be2 Qe7 Bf1 Qd8 Ke2 Kd7 b4 f5 g4 c5 d6 h5 g5 c4 b6 Kc6 b7 Kb5 g6 e3 g7 c3 Kd3 h3 d7 h2 Bg2 h4 Na3+ Ka4 Kc4 f4 Kc5 f3 b5 h3 b6 f2 Ne2 f1Q Be4 Nf6 g8B Nh7 Bf7 Nc6 b8Q Re8 b7 Ng5 Bh5 Qf7 Qa8 Nf3 b8N Ne7 Rf1 h1Q Rf2 h2 Rb1 Qf8 Nc4 Ba6 Rb7 Qf1 Ba3 h1B Rc7 Nf5+ Kb6 Ng7 Nc1 e2 Ka7 Bg2 Be7 Bh3 Bh4 Qg5 d8R Bd7 Nb2+ Ka3 Nbd3 Qg4 Ne1 Kb2 Bg3 Ka1 Ned3 Qe6 Qe1 Qg1 Qf1 Qef7 Qh3 Qg2 Bh2 Qgg6 Qg4 Qh7 Bf4 Qhg8 Bg3
1NK4Q/2p2Bpq/1Qr1N3/n2Bk1BN/2r1n1P1/1ppR2P1/Pb1R4/n1q1R3 b - - 0 1 legal: proof: e4 a5 c4 f5 b4 d5 bxa5 dxc4 h3 Bd7 exf5 Bc6 Bb2 Bf3 Bc1 Bg4 hxg4 Qd5 Na3 Qd7 Nb1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 h5 a6 h4 a7 e6 g3 h3 f6 h2 f7 b4 f5 b3 f6 c3 Nh3 Nh6 Ng5 Nd7 Bc4 Qe8 Re1 Rd8 a8B h1Q Bad5 Be7 f8N Qf3 f7 Nb6 Nd7 Qg8 f8Q Re8 Nb8 Qf1 d3 Qh7 Nd2 Nf5+ Ke4 e5 d4 Rd8 Ne6 Rd7 Qe2 Qg1 Qe3 Rd8 Qe8 Rf8 Rb1 Rf6 Rb2 Rh6 Qh8 Rg6 Bb5 Nc4 Be8 Na5 Bf7 Re8 Nc6 Ra8 Nb8 Ra6 Rc2 Rc6 Rb2 Rc4 Qf2 Ne3 Qf6 Nc2 Kf5 Na1 Rc2 Rh6+ Qg6 Bg5 Ne4+ Ke7 Nf6 Kd6 Rb2 e4 Rd2 e3 Nh5 e2 Rd3 Be7 Bg5 Qe3 Bc6 Qc1 d5 Qg8 Qf6 Rg6 Qd4 Qh7 Qb6 Bf8 Rg1 e1N Rh1 Nec2 Re1 Nd4+ Ke4 Nf5+ Rd4 Rb4 Nef4 Rb5 Rd2 Rf6 Bb7+ Ke7 Ke5 Rc5 Ba8 Rc4 d6+ Kd8 d7 Ke7 d8R Nd6 Bb7 Ne4 R8d3 Qh6 Bbd5 Qh7 Nc6+ Kd7 Rc2 Ba3 Rcd2 Rg6 Kf5 Kd6 Nb8+ Nc6 Qd4 Na5 Qf6+ Kc5 Ke6 Bb2 Kd7 Rh6 Qa6 Rc6 Kc8 Kd6 Qb6 Ke5 Ne6
n3R2q/NQrk1Nnp/1r1B4/rr6/BP4pp/2QP2Pb/Kp4BR/3NR3 b - - 0 1 illegal: Other
1K2BR2/5p1P/1B1p1Q1Q/1q1P2r1/P1R1N1bn/r3n1Np/n1k2pR1/4nQ1B b - - 0 1 illegal: No proof kernel
n2Q2r1/p2Qrb2/pbq1NpRK/2R1pP2/2B1B3/N3P1r1/NQ1P3R/r2k4 b - - 1 2 illegal: Other
2k3B1/2pp3p/b3P3/KB1b3p/2R1n1R1/R2Pq1n1/Q1Pr3N/Bb1Nb1QQ b - - 0 2 legal: proof: f4 a5 h4 e5 fxe5 b5 b4 g6 bxa5 b4 h5 gxh5 a4 Ra7 Rh3 Rb7 Rh1 Rb5 axb5 Bb7 Nh3 Ba6 Ng1 Bc8 g4 f5 e4 f4 b6 b3 b7 b2 g5 f3 g6 Qf6 g7 Kd8 e6 Qe7 a6 Nf6 g8B Ne8 e5 Qf7 a7 Qe7 a8Q Nf6 Nc3 b1B Ra3 Bg7 Bb2 Nc6 b8R Nd4 Bb5 Ne2 d3 f2+ Kd2 f1B Nf3 Bg2 Nh2 Bf3 Rg1 Nc1 Rg4 Qf7 Qh1 Qe8 Ba1 Ne2 Nd1 Ng3 Kc3 Bd5 Kb4 Nfe4 Ka5 Bf6 Qa7 Bh4 Qag1 Qe7 Rb6 Ba6 Rc6 Kc8 Rc4 Qc5 e7 Qe3 Bf7 Rd8 e6 Rf8 Bg8 Rf2 e8Q+ Bd8 Qf8 Rd2 Qb4 Bh4 Qd6 Nf1 Qe5 Be1 Qb2 Nfg3 Qa2
2B1Nbb1/2pQ2n1/2Rp1nR1/p1r3Bb/1QR2bP1/5pPK/3Pk2N/1Bq1N3 b - - 0 1 legal: proof: c4 e5 f4 a5 fxe5 g5 a4 g4 c5 g3 hxg3 b6 c6 Nf6 g4 b5 b4 bxa4 b5 Ng8 Rh3 Ra7 Rh1 Rb7 cxb7 Bg7 Ba3 Bh6 Bc1 Bf8 Kf2 Ke7 Kg3 Ke6 e4 h5 b6 f5 Nf3 d6 Nh2 h4+ Kh3 a3 g3 f4 Bb2 a2 Qa4 Bd7 Ba6 Nc6 b8Q Rh5 b7 Rg5 Na3 Be8 Nc2 Nf6 Rhc1 Qe7 Ne1 Bh5 Rc4 Nd8 Rac1 a1B Bd4 Qd7 Be3 Qc6 Qb4 Rf5 Qa8 Bb2 b8R Qc5 Qc6 Bc3 Qb3 Qa3 Rc2 Qc1 Qb4 Bd4 Bf2 Be3 Bc8+ Ke7 Rb5 Ne6 Rd5 Ng7 e6 Re5 Qca4 Rf5 Rb5 Rc5 e5 Ke8 e7 Kf7 e8N Ke7 Bb7 Ke6 Bc8+ Kd5 e6 Ke5 e7 Kd5 Rb6 Ke5 Qd7 Kd5 Qa3 Ke5 Re4+ Kd5 Re5+ Kd4 Rg5 Ke4 Rc6 Kd4 Qb2+ Ke4 Ng2 Kd3 Qb4 Ke2 Rg6 Rd5 Ne1 Rc5 Kg2 h3+ Kh1 Bd4 Be3 Bb2 Rc4 Be5 Nf1 h2 Kg2 h1B+ Kh3 Bd5 Nh2 f3 Bg5 Ne4 Nf6 Bg8 e8B Bf4 Bf7 Rf5 Ne8 Nf6 Be6 Re5 Bf5 Rc5 Bb1
1bb1Q1rn/N3B3/1n2p3/2k2p2/QR1N2PK/3rP1p1/BRP3Bp/1RQ2n1n b - - 0 1 illegal: No proof kernel
1N1nk1q1/B2Q1q2/1RR5/Br1p1p2/1R3PbQ/b3ppK1/bq1QP2P/1N1B4 b - - 0 1 illegal: No proof kernel
1RqrnNn1/p1N2p1K/3Q4/P3BP2/Q1B3q1/rR1pPrk1/1p2QNn1/7R b - - 0 1 legal: proof: d4 c5 b4 h5 bxc5 e5 g4 exd4 g5 g6 h3 b6 Bg2 Bh6 gxh6 g5 Bc6 g4 Bb7 g3 Bg2 Bb7 Bf1 Bg2 Rh2 Bf3 Rh1 Bg4 hxg4 Qc8 Be3 Qc7 Bc1 Qd8 Kd2 Ke7 c4 Kf6 a4 Kg5 h7 Kf4 c6 d5 g5 b5 c5 d3 c7 b4 c8R b3 c6 b2 c7 g2 a5 d4 g6 h4 g7 h3 Nc3 h2 Qa4 Qf6 Nd5+ Kg4 Ra3 Qf3 Rb3 Qf6 Nh3 Nc6 Rcb8 g1R c8Q+ Qf5 Qe8 Qd7 Nc7 Nf6 g8Q+ Kh4 f3 Rg3 Qg6 Qg4 Nf2 Ne7 Qeb5 Rc8 h8N Ne8 Qd6 Ng8 Qbc4 Rd8 Qc2 Rd7 Qd1 Re7 Qe1 Re3 Ng6+ Kg5 Nf8 Kh4 Bh3 Qc8 Be6 Rh3 Bc4 Rg3 Kd1 d2 Kc2 d1N Kd2 Rc3 Qf1 Ne3 Qg2 Rc2+ Kd3 Rd2+ Ke4 Rd3 Kf4 Rc3 Ke5 d3 f4 Rh3 Bd2 Rf3 Qf1 Ng2 e3 Kg3 Qe2 Rc1 Be1 Ra1 Bc3 Ra3 Bd4 Qa6 Kf5 Qb7 Kg5 Qc8 Rd1 h1Q Be5 Qhh3 Rh1 Qhd7 Kh5 Ngf6+ Kh6 Ng8+ Kh7 Qg4 R8b6 Qcd7 R6b5 Rd8 Rb8 Qc8 f5+
1rR1K2n/b3Pp1R/N4N2/BP1BQN1q/pQ3pPB/k6n/3p1pr1/3bR3 b - - 0 1 illegal: Other
R1R3QN/KbP3k1/PQ1NB1rn/1p1b2B1/R2pp3/1qpPp2B/r4Q2/b7 b - - 0 1 illegal: No proof kernel
n2RKN2/nRBpb3/1Q1N2p1/1R3bp1/3BPPrk/pp2q3/P2N3Q/4b2B b - - 0 1 legal: proof: g4 c5 e4 b5 b4 e5 bxc5 a5 g5 f5 d3 h6 exf5 hxg5 Na3 e4 Nb1 e3 Ba3 Ra6 Bb2 Re6 Bc1 Re4 dxe4 Ke7 Qd4 Kf7 Qd1 Ke8 Ke2 Kf7 Kd3 Kf6 Kd4 a4 Kd5 a3 h4 g6 c4 e2 c6 e1B h5 b4 c7 Bc5 h6 Bd4 Kd6 Bec3 h7 Qe8 c5 Bd2 c6 B4e3 Qb3 Qf7 Bg2 Be1 Nd2 Ba6 c8R Qg7 c7 Bd4 Rd8 Nh6 c8Q Ng8 Qc7 Bc3 Rb1 Bc4 Ngf3 Na6 Ne5 Ne7 Nf7 Be6 f3 Rf8 h8B Nc6 Qb2 Na7 Qb6 Bd4 Rg1 Nc7 Bh1 Bh4 Re1 Na8 Re3 Bc3 Rd3 Bf2 Rd5 Be1 Rb5 Bd4 Ne5 Bc3 Nec4 Kf7 f6 Bf5 Qc2 Qh6 Rb3 Qh3 f4 Qe3 Bb2 Bd4 Bg7 Rh8 Bf8 Kg8 Ke7 Kh7 f7 Bc5+ Ke8 Bd6 Bd4 Be7 Rc3 b3 Nd6 Rg8 Rcc5 Rg7 Qb2 Kh6 Rc7 Kh5 Rb7 Rh7 Bfg7 Kg4 f8N Rh4 Bge5 Kh3 Nf7 Rg4 Bc7 Kg3 Nd6 Kh4 Qc1 Bg3 Qg1 Be1 Qh2+
3q2N1/4P3/Qn1n2pp/pB1R4/1PN1pBQ1/bR4b1/1p2bRPQ/r1B1K1k1 b - - 0 1 illegal: No proof kernel
1r1Q4/BpQ1kpp1/bP1N1qrN/2q2P2/n4BPq/R2Q4/3pp1BN/3R3K b - - 0 3 illegal: No possible last move, all moves rejected
3b4/2p1Qr2/p2pRn1Q/2PR1b2/3Bq1BK/PBN1p2Q/2pq1NP1/4bRk1 b - - 0 1 illegal: No possible last move
2n2r2/P2bp2B/Rp2rpk1/QRB1Q2R/p1Np1p1K/PPBn1Q2/8/2N3r1 b - - 0 1 illegal: No proof kernel
1Rr5/3qp3/nN1r1P1q/R1k5/Q1bb1RQ1/2p1P1BB/bNP2K1n/Bn2r1N1 b - - 0 1 illegal: No possible last move
r4Q1b/1pPBq3/2Qpn1bq/r1bPnR2/5BRN/1r2N3/QP1k1K1R/qN6 b - - 0 1 illegal: No proof kernel
1bK2RB1/5nr1/kP5B/br2p1Q1/1R4NN/bnBpP1Q1/1bbP1Q2/R2q1q2 b - - 0 1 illegal: No proof kernel
1b1k4/Q3qbRr/4pb2/1RN1P1q1/Kpb1N1n1/1PP1nB2/1B1r1Q2/B1R2n1Q b - - 0 1 illegal: No proof kernel
1QnBR3/Qp2N3/1Pn1n1P1/kb4Bp/r4N1R/2qN2Kn/r2b2RP/1B3qq1 b - - 0 1 illegal: No possible last move, all moves rejected
1N3R1R/2n2bKQ/n1P2pQp/2Q3B1/1bnnB1kP/rb3P2/2N4r/2qRB2q b - - 0 1 illegal: No possible last move, all moves rejected
nbQQ3k/rPp4r/B1n2NbB/1n6/N1N4K/2QB1bp1/n1P1R1P1/2Rq1q2 b - - 0 1 illegal: No possible last move, all moves rejected
q1bn3B/3rpB1p/qQ1R4/3QN1bR/b3P1Nr/6Nb/nBP4P/1Qq1k2K b - - 0 1 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 g5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 Kf2 d5 g4 Kd7 Kg2 Ke6 b4 Ke5 e3 Ke4 g6 a5 g5 f5 g7 d3 b6 d4 g6 a4 b7 d2 b5 d3 b6 f4 Ra3 f3+ Kg3 f2 Kg2 Nc6 b8Q Nh6 g8Q Nb4 b7 Na2 g7 Nf7 Qe2 d1Q Nf3 d2 Bb2 Qc1 Qa6 d1B Bc4 Be2 Rd1 f1B+ Kh1 Bfh3 Ne5 Qd3 Qf6 Nd8 Bf7 Qa6 Qb6 Bb5 Rb3 Be8 Rb5 a3 Rc5 Ba4 Nc3+ Kf5 Ne2 Ke4 Nd7 Kf3 e4 Ra7 Ne5+ Ke3 Ng3 Kf2 Nf1 Ke2 Rd6 Ke1 Ng3 Nc3 Nc4 a2 Rh5 a1Q Ne5 Na2 Bg6 Qb5 Qd5 Qa6 g8N Bh6 Bf7 Bg5 Nh6 Rg8 Nhg4 Rf8 Q8c7 Rg8 b8B Rb7 Qcc6 Rd7 Ba7 Rg6 Qb8 Rf6 Bad4 Rf4 Qbb3 Qa8 Qcb6 Qa6 Nh6 Rh4 Nhg4 Nc3 Qa2 Qa8 Qb1 Qa3 Nc6 Na2 Bh8 Qd3 Nce5 Qe2 Bg8 Qea6 Bf7
Rb3bQ1/3N2BB/1q1Pp2p/RQbbNn1P/7N/1rQnPRr1/4K2b/bk6 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 g4 fxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 f4 Kd7 h4 Kd6 d4 c5 b4 g5 h5 a5 f5 g3 b6 a4 f6 c4 f7 h6 b5 g4 b7 e6 b6 g2 Nh3 g1B Kd2 g3 Nf2 g2 Bb2 a3 Qc2 a2 Nd3 Ra3 Rh3 Na6 b8R Nb4 b7 Ne7 Ra8 Qb6 Ne5 Rg8 Qc3 Bh2 Rf3 g1B b8N Rg4 Nbd7 Rg3 e3 Rb3 Bd3 Bb7 Kd1 Nf5 Nd2 Bf2 Be4 Nd3 Ke2 Bfg1 Rf4 Bf2 Ndf3 Bfg1 Nh4 Bc6 Qa5 c3 Qb5 c2 Rf3 c1B Bc3 Ba3 Bb2 Be7 f8Q Bc5 Qf6 Bf8 Ra5 Ne7 Bh7 Nf5 Rc1 a1B Qg7 Kc7 d6+ Kb7 Rc4 Bd5 Rca4 Bf2 Qh8 Be1 Nf6 Beb4 d7 Bfd6 d8Q Bb8 Nfd7 Bf8 Qg5 Bbc5 Ra3 Kc7 Qhg7 Kd6 Qg4 Bb7 Qh8 Kd5 Qgg8 Ke4 d5 Ba8 d6 Bc6 Nc4 Bd5 Bg7 Nc1+ Kd1 Kd3 Nce5+ Kc3 Ke1 Nd3+ Ke2 Kc2 Ra8 Kb1 R3a5 Be7 Qc8 Bf8 Qg8 Bcd4 Qcc4 Bc5 Qc3
QRNN4/p1kn1B2/2b1p1qb/N2nP3/1B1rpnb1/KR6/P2rQrP1/Q3B3 b - - 0 1 illegal: No proof kernel
n4rQq/1BbN2R1/3b1pr1/k4N1Q/3Kbp1R/4BPpR/1Nq1P1P1/1B3rn1 b - - 0 1 illegal: No proof kernel forced: bxLB
Bq1N1RQq/1np1Q2b/n1Pb4/1b2P3/2BBr1p1/3nR3/rpN1QNP1/3K2k1 b - - 0 1 illegal: No proof kernel
rR1Br1n1/2PR3N/2p1p1pq/1b4Pr/2P4B/1q1bNKR1/2k1BQ2/nNb4Q b - - 0 1 illegal: No proof kernel
2q5/1r2kbK1/P2R1n2/p2bq3/1R1pNr1B/2b2p1q/P1Q1NP1n/1B2NRQQ b - - 0 1 illegal: No proof kernel
5Qr1/1p1q1Q2/2b1R1n1/2B3P1/BRn3Nb/qP1p2r1/kn1Pp3/qRQ1KB1N b - - 0 1 illegal: No proof kernel
1R3rRq/p4bpB/Q2b2kq/2rN1n1N/3N1nPp/Pr2Q3/K3R2P/Q1q2B2 b - - 1 3 illegal: No possible last move
k2N1QKR/qRRQpN1p/p1b3b1/r5P1/2BQNnrb/4qn1P/P4B2/7r b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 c5 bxc5 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 Kd7 Ke3 Kc6 Kf4 f5 Ke5 b5 c4 Kb7 g4 f4 d4 a6 c6+ Ka7 h3 f3 g6 f2 c5 b4 c7 e3 d5 e2 c6 b3 d6 b2 g7 Bd7 c8R e1R+ Be3+ Qb6 c7 Bc6 Ke6 Nd7 Kf7 Rb8 Nc3 b1B Ne4 Ka8 Nf3 Ngf6 g8Q Nd5 Qd4 Bg7 Qf8 Qa7 Ne5 Nf4 Bc4 f1Q Bf2 Bf6 Rg1 Bc2 Rb1 Bh4 Rb7 Qe2 g5 Qe3 Rg2 Rh1 Re8 Rg8 c8Q Rg6 Qd8 Rf6+ Kg8 Rf5 Nf7 Ne5 d7 Nf3 Rg1 Rb5 Rc1 Ra5 Qc7 Bb1 d8N Bd3 Qcd7 Rc8 Nd2 Bg6 Ne4 Rb8 Rc7 Rb3 Rb1 Rc3 Rb6 Rcc1 Rb5 Rcg1 Rbb7 Rg4 Kh8 Qe1 Qh6 Nh5 Rg8 Qc1 Qf8 Nf4 Kg7 Qc3 Rh8 Qe3 Kg8
5nN1/p4n2/N1b4R/1NpR1Rrn/P1B1Q3/2P1r1p1/1PQB2nk/qQ1Kn1b1 b - - 0 1 illegal: No proof kernel
K1R4r/pQRbn3/1pN2N2/PP4Bp/3Q1R1n/r2r2r1/2Pqb2Q/B1k1b2B b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 d4 cxd4 hxg5 Bh6 Nd2 Bg7 Nb1 Bf8 Ke2 Kf7 Kf3 d5 g4 e5 b4 d3 a4 d4 Ke4 d2 f4 d3 a5 h6 g6+ Kf6 g5+ Ke7 f6+ Kd6 g7 b6 g6 Bd7 f7 Qc7 f5 Qc3 f6 Ke6 b5 Ne7 g8R Nec6 g7 Na6 Bg2 Bb4 f8Q Nc7 f7 Ne7 Ne2 Ng6 Ra4 Nd5 Qb8 Nde7 f8B Nh4 Qb7 h5 Rg1 Kd6 Bh1 Kc5 Nd4 Kc4 Nc6 Re8 Qe2 d1B Qh2 Be2 Bg5 Qd2 Nc3 Ra8 Nd5 Re8 Nc7 Kc3 Nd5+ Kb2 Nf6 Rd8 Rg4 Kc1 Rf4 Bc3 Rc4 Rc8 Nb4 Rc5 Nc6 Bb4 Rd4 Rc3 Rc4 Ra3 Rc5 Nc8 Kd5 e4 Bd6 e3 Be5 Ne7+ Kd6 Bc3 Kc7 Qd1 Kb8 d2 Ng4 Bf1 Nb4 e2 Ka8 e1R Rc7 Be2 Nc6 Rg1 Rgc8 Qe1 Bd4 d1R Bdf6 Bb4 Ba1 Rg2 g8Q Rdd3 Qe6 Rgg3 Nf6 Qd1 Qb3 Be1 Qb4 Qd2 Qd4
r4R2/p4KPb/2BpNN2/PR4b1/2N2q1n/r1rPnb2/kr4pQ/R1B2QB1 b - - 0 1 illegal: No proof kernel
2R1Rn1B/pn2b1q1/RPBpkb2/7r/2N2KQQ/B1pP2n1/P3bbQ1/N5r1 b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 b5 g4 bxc4 gxh5 Rh6 Ke2 Rh7 Ke1 Rh8 Ke2 Kf7 Ke3 c5 b4 g5 f4 e5 h4 g4 f6 g3 f5 g2 b5 c3 d3 c2 h6 c4 h5 c3 h7 e4 h6 Na6 Kf4 e3 Na3 e2 Nf3 e1B Nd4 g1B Nc4 Rb8 Ba3 c1N Nb3 Qe8 Bg2 Be7 Bc6 Bef2 Qg4 Nc5 b6 d6 Rh5 Qd7 Rb1 Qe6 Na1 Nb7 Rb2 Bh4 Re2 Qd7 Re5 Qc7 Ra5 Bd4 Ra6 Bhf2 Rh3 Be6 Re3 Bd5 Re5 Bf3 Re1 Be2 Qg2 Kf8 f7 Nf6 Qg4 Rg8 h8Q Nd7 h7 Re8 Qf6 Rg7 Qh6 Bdf6 Qhh4 Rg6 Qg2 Kg7 Qgg4 Rh8 f8R Rg5 Rd8 Kf7 Rc8 Nf8 Qg2 Rhg8 h8B Rh5 Qhg4 Nb3 Qh4 Nd2 Qhg4 Nf1 Qh4 Bg7 f6 Ke6 f7 Ng3 Qg4+ Nf5 Qh4 Bgf6 Qgg4 Nd7 Qg2 Ng3 f8Q Rgg5 Qg7 Nf8 Bc5 Bd8 Qg6 Qg7 Ba3 Be7 Q6e4+ Kf7 Qef3 Ke6 Qfg4+ Nf5 Qhh2 Kf7 Qhh3 Bd1 Qhh1 Bd8 Re8 Bde7 Q4h3 Ke6 Qgf1 Rg1 Qfg2 Be2 Qhf3 Ng3 Qh4 Ra5 Qfh5 Rg5 Qg6 Rh5 Qgg4+
1r1N3n/3QBn1K/N3q1pR/1r4Pp/PN2b3/1B2kp2/R1nb1P1Q/nq4BR b - - 0 1 illegal: Other
4RBN1/2q2Bp1/b1QN1b1R/1rP1n3/Qq1p4/2r3Pp/Q3bn1P/K1k1bN1R b - - 0 1 legal: proof: d4 c5 e4 cxd4 a4 f5 exf5 b5 axb5 Qa5+ Nd2 Qb6 Nb1 Qd8 Kd2 d3 Kc3 Kf7 f4 Kf6 b4 a5 Kb2 h5 c4 d5 g3 e5 b6 e4 b5 a4 b7 h4 b6 h3 Nc3 d2 Nf3 e3 Ne4+ Kf7 f6 Ke6 f7 Nd7 b8Q Kf5 b7 d4 Qa7 e2 b8N e1B Nc6 Be7 f8Q+ Ngf6 Qe8 a3+ Kb1 Kg4 f5 Qc7 c5 Bb7 Bc4 a2+ Kb2 Bd8 Ne7 Bc8 Qb3 d1B Bf4 Be2 Bd6 Ne5 Nfd2 Rg8 Qab7 Ra3 Nf1 Rh8 Qc2 Kf3 Qb4 Rh6 Ng8 Nfg4 f6 Nf2 f7 Rc3 f8R+ Rf6 Rb1 Ba6 Bf7 Re6 Be7 Rb6 Qd7 Rb8 Re8 Rb6 Bf8 a1Q+ Kc1 Bh4 Qba4 Qa3+ Rb2 Rbb3 Kb1 Rb7 Rb5 Qb4+ Ka1 Be7 Rb6 Bd8 Rc6 Rb5 Rh6 Bf6 Nfd2+ Ke3 Qca2 Kd3 Nd6 Ke3 Qc6 Kd3 Q2a3 Ke3 Nf1+ Kd3 Ne3 Kd2 Qa2+ Kc1 Nf1
2bb1n1N/3pqQ1p/Rp2b3/7P/rP1P2bR/BNqR2N1/B3Q2K/kn2r2Q b - - 0 3 illegal: No proof kernel
2B2Rk1/R1p2p2/bn2n1qB/1Q2bP1N/1Q1b1b2/3RNP2/1QPKprrq/6B1 b - - 0 1 illegal: No possible last move, all moves rejected
RnQ3qQ/p2r2Rb/P1p1BQ1P/Brrpn3/3P2kN/5nN1/2p3N1/K4Rb1 b - - 0 1 illegal: No possible last move
R1n4K/Q2k2p1/3pn1NP/3P2Pq/1NB2Br1/1B3Qp1/rp2b1Q1/bn2Rb1N b - - 0 1 illegal: No proof kernel
2QR3b/KB1BB2p/1R2Qn1P/1pr5/1Nr4q/1Pbpnp2/3NRP2/1N2k1nr b - - 2 3 illegal: No possible last move
1rN1Q1bQ/1rp3r1/1Qqn1bN1/1b3Rkp/pp1B3R/3BR3/PP4NP/K5n1 b - - 2 3 legal: proof: d4 e5 dxe5 g5 f4 gxf4 c4 d5 cxd5 Bh6 Qc2 Bg7 Qd1 Bf8 Kd2 Ke7 Kc2 h5 e4 b5 g4 f5 d6+ Ke6 d7 a5 g5 a4 g6 b4 g7 f3 Bd3 f4 Be3 f2 Ne2 f1R Nd2 f3 Kb1 f2 Nf4+ Kf7 e6+ Kf6 e7 Rh7 e8Q Rh6 e5+ Kg5 e6 Qf6 d8R Ra7 e7 Rb7 Rd4 Be6 Nc4 Nc6 Nd6 Rg6 Nc8 Nh6 g8N Bg7 Rc4 Re1 Bd4 f1B Ng2 Ne5 Qb5 Re2 e8Q Nf5 Nge7 Bg8 Qb6 Nf3 Qc2 Qe6 Qc3 Bf6 Rg1 Rg7 Ng6 Re4 Rh1 Be2 Rf1 Ng1 Rf4 Nd6 Rh4 Rf4 Rc5+ Rf5 Re5 Qd5 Re3 Qc6 Qcc5 Bc4 Qce5 Rb8 Qh8 Bg8 Qe6 Rb5 Qe8 Nc4 Kc2 Rb7 Rf1 Nd6+ Kb1 Rb8 Rff4 Bf1 Ka1 Be2 Qa6 R5b7 Qb6 Bf1 Bc2 Ba6 Bd3 Bb5 Rf5+
2k1qbr1/2rp1np1/Nnp2QRN/pb5B/1PP3P1/Q7/4BQRR/2n2bBK b - - 0 1 illegal: No proof kernel
1Qq3qb/pb2BPRB/Pp2Q3/NP1p2k1/3R1r1p/1Nb1Q3/1r2n2N/n4R1K b - - 0 1 illegal: No possible last move
1qB1N2r/1n1N3b/rqB3R1/N2pppR1/p4PPn/B2KPQ2/k2b3Q/5n1R b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 Bg7 Ra3 Bh6 Ra1 Bf8 Kd2 d5 b4 Kd7 g4 Ke6 c4 a5 e3 f5 g6 h5 c5 h4 b6 d3 c6 h3 g7 h2 c7 Ra6 b7 Nd7 b8R Nc5 b5 Nb7 b6 Kd6 Qf3 Kc5 Na3 Kb4 Nc4 Kb3 Ba3 Be6 c8B a4 Rc1 Qe8 Na5+ Ka2 Rc6 Bf7 Kc3 d2 Rg6 d1Q Bb5 Qb1 Bc6 e6 Rg5 Ne7 g8N Ng6 Nf6 Bg8 Kd2 Qb2+ Kd3 Bh7 Ra8 Qd8 Ne8 Bb4 Ra7 Nh4 Rg6 Nd6 b7 Bd2 b8Q Qbb6 Rag7 Nb7 Rg5 Qd6 R7g6 Qf8 Qd1 Qd6 Nf3 Qdd8 Qd6 Qdc7 Ne5 Qb8 Nd7 e5 f4 Nf3 Re1 Nh4 Qf3 h1N Rb1 Ng3 Rh1 Nf1 Qf8 Qd6 Qh6 Qb8 Qh5 Ng2 Qhh3 Nh4 Qh2
K1Br1B2/p1pNb3/P2BR1kr/2Ppn3/Q2pQ3/N1N1q3/2q2RP1/n2n1bQ1 b - - 0 1 illegal: No possible last move
1n1q2nN/1krBq3/bp2N1pp/2BQp1rr/6PR/KP2bPQR/QB6/5N2 b - - 0 1 illegal: No proof kernel
KBk5/2p2nnp/Bp1R1N2/p6b/2P4Q/1RNrbrPP/2Q1Q2q/2r1q1NB b - - 0 1 illegal: No proof kernel
5Kn1/RpNNn1R1/1PP4N/B1bp2pk/p1r5/2QQq3/1QnP2R1/1B1b2rn b - - 0 1 illegal: No proof kernel
1QNN2R1/1p1bBB2/QKp2rp1/2P1r2R/1P6/n1R2p1n/BnbN2P1/4n1qk b - - 0 3 illegal: No proof kernel
1Q1B1kN1/K3p2B/2b1P1R1/1p4NQ/p1bBn3/PPN1nQ2/nbR1r2p/q5q1 b - - 0 1 legal: proof: g4 a5 f4 g5 c4 gxf4 h4 b5 h5 d5 cxd5 Ra6 g5 Rg6 hxg6 Bg4 Rh6 Bd7 Rh1 Bc8 Kf2 c5 d4 f5 e4 h5 g7 h4 b3 c4 g6 h3 d6 f3 Ke3 h2 a3 f2 d5 c3 Kd4 a4 Kc5 c2 e5 f4 e6 f3 Nh3 Nf6 g8Q Nc6 g7 Qd7 Kb6 Bb7 Rg1 Rh5 Be3 c1Q Ng5 Ne4 Ra2 Qc8 Qh8 Nb4 g8N Q8c3 Ka7 Bc6 Bd4 Bg7 d7+ Kf8 d8B Qa1 Rc2 Na2 Bd3 f1B d6 f2 d7 Rh3 Qhh5 Re3 Nc3 Re2 Nh3 Qe3 Rg6 Qg3 Ng5 Qg1 Qb1 Bg2 Qe1 f1N Qg3 Ne3 Qf2+ Bf6 Qff3 Bf1 Rg7 Nd6 Bh7 Ne4 Rg6 Rg2 Bc7 Bc4 Ba5 Re2 d8Q+ Be8 Qb6 Bc6 Qb8+ Be8 Be5 Qae1 Bd8 Qa1 Nd1 Bd7 Bd4 Bc6 B4b6 Ke8 Bc5 Bc3 Bd4 Bb2 Qfh3 Kf8 Nc3 Qae1 Qhg3 Qa1 Qgf3+
4N2r/1R1Rb1B1/1K1Npq2/pp1k4/1Pb2b1n/1QR1r2p/PNQ4P/rB1r2B1 b - - 0 1 legal: proof: f4 d5 g4 f5 gxf5 Bd7 c4 Bc8 e4 dxe4 f6 Nd7 f5 Nb6 Bg2 Nd5 cxd5 Nh6 Bf1 Ng8 Kf2 Kf7 Ke3 g5 Kd4 h5 Kc5 a5 d4 c6 d6 e6 d5 h4 Qb3 g4 Ne2 g3 Nf4 g2 Nh5 g1R Na3 h3 Nc4 e3 Rb1 e2 Ng7 e1R Ne8 Qd7 Bd3 Qe7 Kb6 c5 d7 Rh5 d8R Rgf1 d6 Re3 d7 Nh6 Rg1 Rh4 Rg3 Rd4 Qc2 Rd1 b3 Rf1 Nb2 c4 Rf3 c3 Bd2 Re5 Be3 Rd1 Bf2 Re3 Bg1 Rf1 Be4 Rdd1 Rg3 Ng4 Rf3 Ne5 Rg3 Ng6 Bd3 Kg8 f7+ Kh7 Rf3 Nh4 f6+ Kh6 Bf5 Kg5 Rg3+ Kf4 Bd3 Bh6 f8B Ke5 f7 Kd5 Bg7 Bg5 f8Q Qf6 Qa3 Bf4 b4 Bd6 Rc1 Be7 Rg4 Rb8 Rc4 Rfe1 Rc7 Rf1 Qca4 Ra8 Bb1 c2 Rc3 Rd2 Rd1 c1B Qc2 Rd4 Rdd3 Rd1 Rc7 Rde1 Rdc3 Rdd1 Kb5 b6 Rb7 Rb8 Ka6 b5 Kb6 Ra8 Rbc7 Bb7 Rb8 Rf1 d8N Bc6 Rbb7 Rc8 Nd6 Rfe1 N8f7 Rh8 Ne8 Rf1 Qf2 Bd2 Nfd6 Rfe1 Bd3 Ra1 Bf5 Red1 Bb1 Rd3 Ne4 Ke5 Bc2 Bf4 N4d6 Re3 Qb3 Bd5 Bb1 Bc4 Qfc2 Kd5 Rd7
BR3K1k/2p1P1Nr/2p3b1/B1bp3Q/4N1N1/R1PPr2B/p1Q1q1p1/Qn1n3n b - - 0 1 illegal: No proof kernel
R1b5/1pQ1rP2/p1pBnp1b/BP1b1BrQ/N1kpR3/q2Q1P2/3K3n/N2N4 b - - 0 1 illegal: No proof kernel
RQ2Qrr1/1R1npR2/8/BB1PPq2/q2p2pp/p3N1N1/B3N2P/1nK1bbk1 b - - 0 1 illegal: No proof kernel
K3RBB1/n1Nrp3/NRPR1bpn/ppq5/k7/3N2Pb/Q1p1P2B/1Qq4r b - - 0 1 illegal: No proof kernel
1b1BB1rb/5bP1/N2q3n/7N/2R2P1n/NQbBP1K1/6pR/1rN2k1N b - - 0 1 legal: proof: g4 g5 b4 e5 d4 a5 bxa5 d5 dxe5 b5 c4 f5 cxd5 Qe7 a4 fxg4 axb5 g3 h3 g4 h4 Qg5 hxg5 Ba6 Bh3 Bb7 Bf1 Bc8 f4 Kf7 b6 Kg6 a6 Kf5 g6 Ke4 d6 c5 a7 h5 b7 g2 Kf2 c4 e6 c3 d7 c2 d8N h4 e7 h3 e8N h2 Ra2 Bd6 Nf7 Nh6 Kg3 Nd7 b8N Rg8 Ng7 Nf8 Nh3 g1B Ba3 Ke3 Nf2 c1B Na6 Bd2 Rc2 Be6 Nh5 Rb8 a8B Bc3 Ne5 Bf7 Bc6 Rb3 Bb4 Bb8 Na3 Rb1 Ned3 Bh8 g7 Ng6 Rc3 Nh4 Qb3 Kd2 Nc1 Ke1 Nh3 Be3 Rc4+ Bd2 Be7 Bb4 e3 Bc3 Rg1 h1Q Nf2 Qd5 Rh1 Qd6 Rh2 Bb2 Bd3 Bc3 Bde4 Kf1 Nh1 Nf3 Be8 Nh4 Rc2 Nf3 Bd8 Nh4 Kh2 g3+ Kh3 Ng6 Rh2 g2 Kg3 Nh4 Bd3+
1Br2bR1/3rk1Q1/r2R4/2b1N3/1n3R2/q1r4B/PrP1BP1K/2bBBNn1 b - - 0 1 legal: proof: e4 e5 g4 h5 gxh5 a5 b4 b6 d3 Ba6 d4 c5 dxc5 f5 exf5 axb4 Nd2 Bc4 Nb1 Be6 fxe6 Ra3 Qd3 Ra4 Qd1 Ra8 h4 g5 e7 d5 h6 g4 c6 b5 h7 e4 c7 g3 c8B g2 h5 b3 h6 b2 Rh5 e3 Rf5 e2 Nf3 g1B Na3 b1R Qd4 b4 Qb6 b3 Rf6 b2 Rf7 d4 Nc4 d3 Qg6 Ra6 Bf5 Nd7 Qg4 Qa8 Qg7 Ne5 Ne3 Nf6 B5h3 Nd5 Rf4 Rg8 h8R Bh2 h7 Nb4 Nf5 Kd7 Ne3+ Kd6 e8B Bg3 Qg4 Ke7 Bh5 Bh4 Qg2 Bg5 Qg3 Bgh6 Qg1 Rg3 Rg8 Bg5 h8B Qa7 Kd2 e1B+ Kd1 d2 Ke2 d1R Bd2 Qc5 Bc3 Bd2 B5g4 Bc1 Be1 Rd7 Bh5 Ng6 Be5 Nh4 Bb8 Bgh6 Ne5 Nf3 B3g4 Qa5 Bfh3 Qa3 Kf1 Bg5 Qg2 Ng1 Bd1 Bh4 Bhe2 Rf3 N3g4 Rc3 Nh2 Bg5 Qg3 Be3 Kg2 Bc5 Nf1 Bgh6 Beg4 Bg5 Bde2 Rbd1 Bgf3 b1R Kh2 Rb2 Qg2 R1d6 Rd1 Rdc6 Rd6 Rc8 Bd1 Bgh6 Bfe2 Bg5 Rg4 Bd2 Rf4 Bc1 Qg7+
bR1b1Kbb/NB1P4/B6P/1qP2n2/r7/1NNB2B1/1R2Qq1r/1B3knn b - - 0 1 illegal: No possible last move, all moves rejected
1qR4b/Pr1nk1nn/3Q2K1/5n2/3rN2R/1r2P1b1/1B3PBR/B1RNR1q1 b - - 0 1 legal: proof: c4 a5 g4 d5 cxd5 g5 d4 e5 dxe5 f5 b4 axb4 h3 Be6 Ba3 Bf7 Bc1 Bh5 gxf5 g4 Qb3 g3 Qd1 Bg4 hxg4 Ke7 Nf3 Kd7 Ng1 Ke8 Kd2 h5 Kd3 c5 Ke4 b5 a4 b3 g5 g2 a5 h4 e3 c4 e6 c3 e7 h3 d6 b4 a6 h2 a7 b2 g6 b3 g7 c2 f6 Nd7 Kf5 Rh4 Ra5 Qb8 Nc3 b1N Rc5 b2 Ne4 Nd2 Ne2 b1R Bb2 g1Q Bg2 c1B N2c3 Nb3 Kg6 Nd4 Qd2 Nf5 Nd1 Rh7 Qd5 Bd2 Rc1 Bc3 Ba1 Rb3 Qc6 Ngh6 g8R Nf7 Rh8 Ng5 Qc7 Rf7 Rh4 Nh7 Bb2 Ng7 Qc5 Nb6 Ba1 Kd7 e8R Be5 Qd4 Bg3 Rec8 Ke6 Qd3 Rb7 f7 Nd7 Qd4 Be7 f8R Bf6 Rfd8 Nf5 Qb4 Bh8 Rf8 Ng7 Rf5 Qe1 Rfh5 Qf1 Rg1 h1N Rh2 Qe1 R5h4 Qf1 Bf3 Qg2 Re1 Qg1 Bg2 Bf4 Bf6 Ng3 Bb2 N3f5 Qb6 Bg3 Qd4 Nb6 d7 Ke7 d8B+ Ke6 Bg5 Nd7 Bf4 Ke7 Be5 Qc7 Rg8 Rd8 Qd2 Qc8 Ba1 Qb8 Beb2 Nc5 Rf8 Rd4 Rc8 Nd7 Qd3 Nhf6 Qa6 Nh7 Qd6+
3KBn2/2Rn4/n4NBn/B3qP2/3nNnb1/3kNPn1/1rBP2B1/2Q1R2r b - - 0 1 legal: proof: e4 d5 h4 b5 c4 dxc4 a4 f5 axb5 Nh6 exf5 Ng8 b4 a5 Ba3 g5 hxg5 a4 Bb2 Bg7 Bc1 Bd4 Qg4 Bb6 Qd1 Ba5 bxa5 Qd3 Nc3 Qd6 Nb1 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 h5 g4 c3 g6 a3 b6 h4 g7 c2 a6 a2 a7 h3 b7 h2 Bh3 Kc4 Ba3 c1N Bb2 c5 Ne2 Na6 b8N Nb3 Nd4 Kd3 Qe1 c4 Nc2 c3 Nd7 Qa5+ Ke6 Rb8 a8B Nh6 Ne3 c2 g8B c1N Bc6 Ne2 Bf7 Rb4 Rg1 h1N Qc1 Nhg3 Re1 Rb7 Bc3 Nbc5+ Ke5 e6 Kd6 e5 Ke7 e4 Bg6 Rb2 Bg2 Ne6 Nf6 Nf8 Bce8 Qe5+ Kd8 Nf4 Ba5 Be6 Nc3 Bd7 Nc4 e3 Nce4 e2 Rb1 a1N Ne3 Nc2 g5 Bb5 Ra1 Nd4 Ra4 Rh7 Rc4 Ba4 Rc7 Bd1 Bh5 Rh8 g6 Rh7 g7 Rh8 Rg1 e1N g8B Bg4 Bhg6 Nef3 Rh1 Ng5 f3 Ngh7 Ba2 Nd7 Re1 Nhf8 Bd5 Ng8 Bdf7 Rh1 Bb3 Nh6 Bc2+
8/R2Qq2P/R2B4/b3PKR1/N1k3rr/b2N2r1/2Pb1N1b/N2nqrNB b - - 0 1 legal: proof: e4 c5 g4 b5 d4 cxd4 a4 h5 axb5 d3 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 f3 e5 Ra6 d5 Ra3 d4 Ra1 Bb7 f4 Bd5 exd5 e4 Bg2 Nd7 Bf1 Ne5 fxe5 Qd7 Be3 Qc8 Bc1 Qd8 Kd2 Ke7 h4 a5 b4 g5 h6 f5 b6 g4 d6+ Ke6 b5 Kd5 h5 g3 b7 a4 b8N g2 b6 f4 b7 a3 d7 f3 h7 a2 h6 f2 Rh5 Qf6 d8R+ Kc4 Rd6 Ne7 Rg5 Ra3 Nc6 Nf5 b8N Ne3 Nb4 Qe7 Ra6 Rg8 Qg4 Nd1 h8N Rg7 Be2 f1R h7 Rf4 Qh3 Rh4 Nf7 Rc3 Bf3 e3+ Ke1 e2 Kd2 Rg8 Nh6 Rg6 Ba3 e1B+ Kc1 Rg7 Qd7 Rg6 Ng4 Bh6 Nh3 g1B Bh1 Bh2 Ng1 Rb3 Nc3 Rg7 Rb1 a1B Na4 Bac3 Ra1 Bb2+ Kb1 d2 N8c6 d3 Nf2 Rc3 Nd4 Bc1 Nb3 Rg6 Rf5 Rgg4 Ra7 Be3 Rg5 Bb6 Ra2 Ba5 Na1 Bb2 Nd5 Bc1 Bd6 Ba3 Nf4 Nb2 Nfe2 d1Q+ Nc1 d2 Ra6 Rf3 Ra7 Qe2 Ncd3 Rfg3 Ra6 B3b4 Ra3 d1R+ Ka2 Bed2 Ra7 Kd4 Kb3 Rf1 Ra2 Nd1 Ra6 Bf4 Ra7 Qe1 Ra6 Ke3 Kc4 Ba3 Kd5 Kd2 Nb6 Kc3 Ra7 Qd8 Ke6 Bd2 Na4+ Kc4 Kf5 Qc7 Rb2 Qd8 Rb6 Qe7 Rba6
2B2k1B/nQ1r4/B1PB1rRR/bb1P4/P2b1q1p/2rn3K/6n1/N1BR3N b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 d5 hxg5 c5 cxd5 c4 b4 axb4 d3 Nd7 dxc4 Nb8 c5 Qc7 Qe2 Qa5 Qd1 Qd8 Qb3 b5 f4 h5 Kf2 e5 Kg3 h4+ Kg4 e4 g6 e3 g7 e2 Na3 e1B Nc2 Bd7 Ne2 Ra3 Ng3 Ne7 g8B Rh6 Be6 Nec6 f6 Na6 f5 Bg7 f7+ Kf8 Kh3 Qg5 Bd3 Bec3 Rd1 Na7 Nh1 Bgd4 g4 Qf4 g5 Bc6 Qb2 b3 g6 b4 Bc8 Be8 Qb1 b2 Bb5 b3 g7+ Ke7 g8R Nb4 Rg3 Nd3 f8B+ Kf7 Bg7 Rd6 Bf6 Kf8 Bc4 Raa6 a4 Ba5 Ra2 Bc6 Bh8 Rd7 Na1 Rb6 Rg7 Ra6 Rh7 Rb6 Qc2 b1N Rh6 b2 B4a6 Na3 Qb3 b1R Rg2 Nc4 Rgg6 Ne3 Qb4 Ng2 f6 Kf7 Qb5 Rb3 Qb4 Ke8 f7+ Kf8 Qb5 Rc3 Qb4 Bb5 Qb2 Rf6 c6 Bc4 Qb7 Ke7 f8B+ Ke8 Bd2 Bb5 Bc1 Kf7 Bd6 Ke8 Bb8 Kf8 Bd6+
BB1K4/1QB1N1q1/8/RPq1qR1B/2Pnkb2/1n2p2r/2N3P1/N1Brb2b b - - 0 1 legal: proof: d4 c5 a4 cxd4 e4 g5 f4 f5 fxg5 b5 axb5 Ba6 exf5 Bb7 h3 Be4 Ke2 Bf3+ Ke1 Bg4 hxg4 Qc8 Qd3 Qc7 Qd1 Qd8 Kf2 Kf7 Kg3 d5 Kh4 e5 b4 h5 c4 a5 b6 e4 b5 d3 f6 Ke6 b7 Ke5 g6 a4 Kg5 a3 g7 d4 Ra2 h4 Be3 h3 Ne2 h2 Bd2 e3 Nc1 Nc6 b8B+ Ke4 Nb3 Qe8 f7 Nf6 g8B Bd6 f8B Nd7 Be2 Nc5 Kf6 Rh3 g5 Bf4 Bc1 d2 g6 d3 g7 Nd4 Na1 Ncb3 Rf1 h1B Bfd6 Qe5+ Kf7 Ra6 Bdc7 Rd6 Bh5 Qc5 Qg4 d1Q Ke7 d2 Qc8 Qg4 Qb7+ Rd5+ Ke8 d1Q Be6 Qd2 g8N Qb2 Ne7 Qg7 Bd7 Qe5 Bc6 Qc3 Qa7 Qb2 Ba8 Qc3 Qb7 Qg7 Rb2 a2 Na3 Qe5 N1c2 a1B Ra2 Bb2 Na1 Qg7 N3c2 Ba3 Bd6 Bb4 Ra5 Qb2 Be5 Be1 Bbc7 Ne6 Bed6 Qbe5 Bb8 Ned4 Kd8 Bfg3 Rf5 Bf4 Nc6 Nf3 Bc7 Rd1 Bb8 Nfd4 Bdc7 Qb6 Ne7+ Qc6 Nd5 Qc5 Ne7+
2N4r/p1Bb1QB1/6R1/1B1PKbq1/P1B4N/1n1R1r1q/Bn1Rn1P1/2k1q3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 f5 f4 c5 bxc5 Nf6 e4 Bh6 exf5 gxf4 h4 Bg5 hxg5 Ng8 Ke2 Kd7 Kd3 b5 Ke4 e5 d4 h5 a4 f3 d6 Kc6 f6 b4 d7 b3 g6 b2 f7 f2 f8R h4 g7 h3 Na3 b1B+ Qd3 h2 Bd2 Ne7 g8B Ng6 Bc4 Nf4 Rg8 Qg5 d8B Nd7 Nf3 Ne2 Nb5 Nb6 Bc3 Bd7 Bc7 Rf8 Nh4 Rf3 Ra2 Bc2 Rg1 h1Q Nd6 Qh3 Rg6 Bb1 Rd2 Bc2 Ba2 Nc4 Rh1 Nb2 Rg1 Nc1 Be2 Nb3 Rgd1 f1N Nc8+ Kb7 Kd5 e4+ Kd6 e3 d5 Ng3 Bg7 Bb1 Qd4 Bbf5 Bc4 e2 Qf6 e1Q Qf7 Ne2 Rd3 Bb5 c6+ Ka6 Bb8 Ka5 c7 Kb4 R1d2 Ka3 Ke5 Qd8 Ne7 Qg8 c8B Bbd7 B8a6 Qd8 Nc8 Qg5 Bab5 Nd1 Bb1 Nb2 Bc2 Ka2 Bc7 Ka1 Bd1 Kb1 Bc2+ Kc1 Bb1 Rg3 Ba2 Re3+ Kd6 Rf3 Ke5
5B2/p1r2PKb/1P6/r1PB4/q1b2Q1N/BnRn1B1n/2kN4/BnNr1R2 b - - 0 1 illegal: No possible last move
2RbBR2/rn2p1KB/2P1b3/R1q1N3/1Q5k/b2P1BN1/rRbPq2b/6R1 b - - 0 1 legal: proof: b4 c5 h4 d5 Bb2 b5 Be5 g5 hxg5 d4 a3 d3 exd3 f6 bxc5 fxe5 a4 b4 Rh5 Na6 Rh3 Nc7 Rh1 Nb5 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kf7 Kf3 Kg6 Ke4 a5 f4 h5 c4 b3 g4 h4 b6 b2 b7 h3 b8R h2 c6 a4 c7 a3 c5 a2 c6 Bg7 Nc3 b1B Rb2 Nh6 Qa4 Nf5 Nf3 Ra7 Rg1 h1Q Ne2 Qh2 Bg2 Qd6 Qb4 Bc2 Ng3 Be6 c8R Qc5 Bh1 Ne3 Bg2 Nc4 Bh1 Na5 f5+ Kf7 f6 Kg6 f7 Nb7 f8R Qh5 Rab1 a1B Ra2 Qh2 Ra5 Bb2 Bg2 Ba3 Rb2 Kh7 g6+ Kh6 Bh1 Bf6 g7 Qh5 Nh2 Kg5 g8B Kh4 g5 Qd1 Ng4 Qe2+ Ne3 Rh5 g6 Bg5 g7 Bf4 Bf7 Rg5 Nh5 Bh2 g8B Rf5 Bh7 Rf1 Bfg8 Ra1 Bf3 Ra2 Bg6 Bf7 Kf5+ e4+ Nd5 Bc7 B8h7 Bd8 Ng3 Bg8 Be8 Be6+ Kf4 e3 Nf6 Qf1 Ke4 e2 Ng4 e1B Ne5 Qe2+ Kf4 Kh3 Kg5 Bf2 Nh5 Bg3 Kh6 Bf4+ Kg7 Bh2 Bg4+ Kh4 Ng3 Qe1 Bf3+ Qe4 Qb6 Qe2 Qb4+
bNK1BB2/3P2r1/1kb1qR2/B3R3/q2P2Bp/2nqPn2/4Qbb1/2BN2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 c4 exf4 cxd5 Bg4 Ra3 Be6 Ra1 Bc8 hxg5 f5 g4 a5 Nh3 f3 Ng1 f4 Ra3 Ra6 Ra4 Rf6 Ra1 Rf5 gxf5 Bb7 Qc2 Ba6 Qd1 Bc8 Kf2 Kd7 b4 c5 d4 Kc7 f6 h5 d6+ Kb7 g6 a4 e3 a3 b6 h4 f7 a2 g7 c4 b5 c3 d7 c2 Bh3 Na6 Nc3 Qe7 Qe2 Nh6 g8B Nb4 Nd1 Rh7 Bg4 Qe6 Rh2 Bg7 f8B Be5 Bf7 Nd5 Be8 Rg7 Rb1 a1Q Rh1 Kb8 b7 Kc7 b8B+ Kb6 Bbd6 Nc3 Bb4 Bb7 Rb3 Bc6 Ra3 Qb1 Ra5 Nf7 Ra6+ Kb7 b6 Ng5 Ra5 Qba2 Rb5 Ka6 b7 Qa4 b8R Bd6 Re5+ Ka7 Bb2 c1Q Rb6 Qd2 Bc1 Ba8 Rc6 Qd3 Rb6 Bb8 Rc6 Qe7 Rf6 Qe6 Nh3 Kb6 Rg1 Nf7 Ng5 Bc7 Ra5 Ne5 Nf7 Bb8 Nd8 Bd6 Kf1 f2 Nc6 Nf3 Kg2 f1B+ Kf2 Bg2 Nb8 Nh2 Rh5 Bgc6 Re5 f3 Ke1 Qdc4 Kd2 Qcb3 Kd3 f2 Re1 Nf3 Rg1 Nd5+ Ke4 f1B Na6 Bg2 Nb8 Nc3+ Kf4 Qec4 Kf5 Qca6 Kf4 Qbc4 Kf5 Qd3+ Ke6 Rg5 Kf7 Bc7 Ke7 Rg7+ Bf7 Bd6+ Kd8 Qac4 Bg6 Qe6 Be8 Bc7+ Kc8 Bd6 Rd5 Bg3 Re5 Bf2 Ba5+
4RRbK/1PB5/nr1bq2N/4P3/PNq2bN1/1B4Br/2pQN2q/k2qN3 b - - 0 1 legal: proof: f4 e5 a4 exf4 c4 h5 g4 d5 cxd5 Rh7 gxh5 Rh8 Qb3 b5 Qc2 a5 Qd1 Na6 b3 Nc5 axb5 a4 Nh3 a3 Ng1 Na4 bxa4 Bd7 Bg2 Bg4 Bf1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 f5 e4 c5 h4 g5 b6 a2 d6 c4 d5 f3 d7 f4 b7 f2 h6 f3 h5 c3 d6 c2 h7 Kb3 h6 g4 Ne2 g3 Bf4 Kb2 Qd2 g2 Bg3 Qb6 d8B g1Q d7 Be7 Bc7 Ra6 d8N Nf6 Nc6 Bh3 Nb4 Rc8 h8N Qh2 h7 Ne8 Nf7 Be6 Nh6 Bg8 h8N Bd6+ Kf5 Qe3 Kg6 Rb6 Ng4 Rd8 Bh3 f1Q Nf7 f2 Nfh6 Qd1 Re1 f1Q Bg2 Qff4 Rf1 Qb3 e5 Qfc4 Bd5 Rd7 Rf8 Rh7 Nbc3 Rh8 Ne4 Rh7 Rc1 a1B Ng5 Qa2 Nf3 Qab3 Nf5 Rh3 Nfh6 Qa2 Ne1 Qab3 Bd8 Nc7 Kg7 Na6 Re8 Qa2 Bf7 Qe6 Bc7 Qac4 Nbd3+ Ka2 Kh8 Bd4 Nb4+ Kb2 Ra1 Be3 Ra3 Bg5 Rf3 Ka1 Rf6 Bf4 Rf5 Qe7 Bd5 Qe6 Rff8 Qc5 Ba2 Qcc4 Bb3
1Q2Br1r/b2NP2r/1nrb2N1/1bB5/1n5N/1P4k1/RBpPrBB1/2KR4 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Qe7 gxf5 g4 h4 Qg5 hxg5 exf4 e4 Kf7 d6 h5 g6+ Kf6 g7 Kg5 d7 a5 d8N c5 b3 c4 b6 f3 e5 Kf4 b7 h4 f6 a4 f7 a3 e6 c3 Bh3 a2 Bg2 g3 Nc6 h3 Qc2 h2 Kd1 f2 Na3 Bd7 Nc4 Bd6 f8B Ra6 Ne7 Nc6 b8B Nb4 Nb6 Nf6 g8B Nfd5 Ba7 Bb5 Nd7 Rc6 Bf7 Nb6 Nf3 Kg4 Re1 h1R Be8 f1R Bb2 R1h7 Nh4 Kf4 Qg6 c2+ Kc1 Rf2 Qg8 Re2 Neg6+ Kg4 Bh1 g2 Rd1 g1B Bg2 Kg3 Be7 Bc7 Bc5 Bd6 e7 Bf2 Rb1 a1R Qf8 Ra3 Ra1 Ra4 Ra2 Be3 Bb8 Ra8 Ba7 Rac8 Bf7 Ra8 Qb8 Bd4 Be8 Be3 Qb7 Rd8 Qb8 Bd4 Bf7 Rdf8 Be8 Na4 Bcb6 Bc3 Bg1 Bd4 Bb6 Bf2 Bd8 Ba7 Bdb6 Re6 B6d4 Re2 Bc5 Nb6 Bgf2+
Kb1RrQ1b/2b2N1R/4N1PN/2p1r2P/1b1rn3/BB1N1k2/1P3R2/3q1N1r b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 h4 h3 g5 Ne2 Bf5 Ng1 Bg6 Ra4 Nc6 Ra6 Bh5 Ra1 Ne5 gxh5 g4 Ra4 g3 Ra1 Ng4 hxg4 Rc8 Ra2 Rb8 Ra1 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 c6 g5 h3 b6 e3 f5 g2 b7 e2 b8R e1B g6 h2 f6 e6 f7 a4 Qf3 a3 Nh3 g1B+ Nf2 a2 Bc4 Rh6 Bb3 Qd7 Rd8 Be7 f8N c5+ Kc4 Ke5 d6 Ra7 d3 Bc3 Nd2 Rh8 Nf1 Bg5 Bd2 Bf4 d4+ Kf5 d5 e5 Nd3 e4 Ne6 e3 Qf2 Ke4 Re1 Bd4 Bb4 a1R Ba3 e2 Rd1 Bg3 Qf8 e1B Rd2 Ra8 Rf2 Rd1 Rf7 Bg1f2 Rh7 Bb4 Rg1 h1R Rg2 Qa4 d7 Bc7 d6 Bg3 Rh2 Nf6 Rf2 Qa7 Kb5 Qb7+ Kc4 Qd5+ Kb5 Rb8+ Ka6 Bh2 Rg2 Kf3 Ka7 Bf4 Re2 Ne4 Rd2 Rb7+ Ka8 Rg8 Re2 Bh8 Rf2+ Kg4 Qe7 Re8 Qf8 Re1 Rb8 Qd4 d8N Rb6 d7 Rd6 Nf7 Bh2 Nc1 Qd1 d8N Rd4 Rc8 Bb8 Nd3 Bhc7 Nh6+ Kh4 Ng8 Kg4 Nf7 Re2 Rd8 Re3 Rg2+ Kf3 Re2 Nc3 Rg2 Re5 Ngh6 Ne4 Rf2+
n2qnrR1/pq4PR/RNB5/R2QB2P/8/K4Rnr/1P6/Bq2kqqN b - - 0 1 illegal: Other
b4bRr/Pp2P2r/4pN1P/2nB2Nb/3R1R2/1NB1N1k1/K5Nr/1n2qQ2 b - - 0 1 illegal: Other
7Q/N3R2n/2Bnpp2/1r2R2K/qNRNq3/1r2PP2/nqNb2P1/1N2k1B1 b - - 0 1 legal: proof: c4 a5 h4 d5 cxd5 g5 a4 gxh4 b4 b5 bxa5 b4 a6 b3 a5 b2 a7 Bb7 a6 Nc6 axb7 Rb8 Nc3 b1R axb8N Rb4 Nb1 Ra4 Qc2 Ra3 Qd1 Ra8 d4 h5 d6 h3 f3 e6 Kf2 h2 Kg3 h4+ Kg4 h3 d7+ Ke7 d5 Kf6 d6 Ke5 Nc3 Qe8 d8N Na7 d7 c5 Bb2 c4 Qc2 Kd4 Ra5 Ke3 Rg5 Kf2 Nbc6 Rh5 b8R Nb5 Re5 Ra3 Nd4 Bb4 N8c6 Ke1 d8N Rb3 Na7 Nd6 Qh7 Qa4 Nb1 c3 N8c6 c2 Rb7 c1N Re7 Bd2 Qh8 Na2 Nb4 Rf5 e3 Nf6+ Kh4 Nh7 Nge2 f6 Ndc2+ Kd1 Rg1 h1Q Ned4 h2 Bc3 Bc1 Be1 Bd2 Ba6 Rg5 Bb7 Rf5 Ra5 Rb5 Rf1 Qg1 Bc6 h1Q+ Kg4 Qf2 Rg1 Rb6 Re5 Rb5 Rf1 Qhg1 Kh5 Qe2 Rf2 Qd3 Re2 Qe4 Bf2 Qf1 Bg1 Qf2 Na1 Bc1 Rb2 Ke1 Rc2 Qd2 Rc3 Qb2 Rc4 Bd2 Nac2+
B1r3b1/q1Bn1PqR/4k2p/5RnN/3p2NK/1NP3N1/1Q2NbPn/1q3R2 b - - 0 1 legal: proof: d4 a5 h4 f5 f4 g5 hxg5 b5 a4 c5 axb5 cxd4 e4 Ra6 exf5 Rg6 fxg6 Bh6 f5 Bf8 Kf2 d5 Kg3 Kd7 b4 e5 g7 e4 g6 a4 f6 d3 b6 d2 f7 d4 b7 e3 c3 a3 b5 e2 b6 e1N Qe2 d1Q Nd2 a2 Ne4 Nf6 g8N Nd3 g7 Ng4 Nh6 Nh2 g8N Nf2 Qb2 Nfg4 Bd3 Na6 b8N+ Ke6 b7 Qg5 Ngf6 Nf2+ Nhg4 Qg7 Bf4 Nc5 Na6 Nh3 b8R Nd7 Rb5 Be7 Nh5 Ng5 Kh4 Qb1 Rf5 Bb7 Ne2 Rc8 N4g3 Be4 Rf1 h6 Bc7 Bd8 Bb5 Bf6 Bc6 Be5 Ba8 Bd6 Rb5 Bh7 Rbf5 Bg8 Nc5+ Ke7 Nd3 Ke6 Ndc1 Bf4 Nb3 Be3 Nd2 Bf2 Nb3 Qe4 Rab1 a1Q Rbe1 Qa7 Ra1 Ke7 Ra6 Qb1 Rg6 Qh8 Rg7 Ke6 Rh7 Qf6 Nec1 Qg7 Ne2
NN3r2/K1bn2P1/2B1n3/n2Q3R/P1NB1p2/1b1N1Pq1/1R3npb/2NR1k2 b - - 0 1 legal: proof: c4 a5 g4 g5 d4 e5 dxe5 b5 h4 h5 gxh5 g4 b4 axb4 cxb5 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Rh6 Na3 Rh7 Nb1 Rh8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 a4 c5+ Kc4 Ke4 e6 f5 g6 g3 g7 b3 e7 g2 e8R+ Ne7 h6 b2 b6 d5+ Kb5 c4 b7 d4 h7 c3 Rh5 d3 Be3 c2 Na3 c1B Bd4 b1N Nc4 Nd7 Ka6 d2 Ka7 Na3 b8N Nc2 f3+ Kf4 e4 Kg3 e5 Nc6+ Ka8 f4 e6 Na5 Ka7 Bd6 e7 Rf8 h8N Bc7 Ng6 Bb7 Be2 Bd5 Nge5 Ba3 Rb1 Bc5+ Rb6 Qc8 Rd8 Bf7 e8N Bd5 Qa1 d1N Qa2 Nf2 Bd3 Bg8 Be4 Bf7 Bc6 Bd5 Bb2 Nd4 Nd3 Bg8 Ba1 Ne6 Bd4 Bf7 Rg5+ Kh2 Ne2 Kh1 Nec1 Kg1 Rh5 Kf1 Ka8 Bg8 Rb2 Ba7 Qb3 Qa6 Qa2 Qb5 Qb3 Qg5 Qb5 Qg3 Qg5 Bc5 Qd5 Be7 Ka7 Bh4 Bf6 Qh3 Bd4 Bg3 Be3 Bh2 Bd4 Be5 Nc7 Qg3 Na8 Bc7 Re8 Nec5 Ree2 Ne6 Red2 Bh7 Ne1 Bc2 Rd1 Bb3 Ned3+
3K1b2/n1r1R3/N1R2pn1/1q5k/r2p1B2/1PQqNPPR/2B2r1R/3B1Rr1 b - - 0 1 illegal: No possible last move
3k1rqN/P2P2B1/6Nq/4Kn2/QpRp2Pb/nR1B1R2/3qRq2/3B1r1R b - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 a5 hxg5 d5 e4 f5 exf5 d4 c4 Be6 b4 Bd5 cxd5 axb4 Ke2 h5 Kf3 e5 Ke4 b5 a4 b3 f4 b2 g4 b4 c6 h4 a5 h3 g6 h2 f6 Bh6 g7 Qb6 d6 Qb5 f5 Rh7 d7+ Kd8 f7 Na6 f8R+ Kc7 f6 Bg5 f7 Qc4 Ra2 Rb8 Ne2 Bd8 Nbc3 Rh6 Nd5+ Kd6 c7 Rf6 c8R Nc7 a6 Nh6 g8B Nf5 a7 Nb5 Ndf4 Ke7 Qa4 b1Q+ Rc2 Qcb3 Rc4 Q1a2 Rd2 Na3 Ng6+ Kd6 Nh8 Ke7 Rd3 Qd2 Nf4 Ra8 Kd5 e4 Ke5 e3 Bh7 Qba2 Rb3 e2 Rg8 e1Q+ Be2 Qg1 f8R Qf2 Bd1 Rf7 Rg5 Rc8 Rh5 Rb8 Re1 h1Q Re2 Qc6 Rh1 Qh6 Rg8 Rc8 Rg5 Rf8 Rgh5 Rc6 R5h3 Rcf6 Rbf3 Nh4 Bd3 Nf5 Rc8 Qg8 Rc4 Bb6 Nfg6+ Kd8 Rhg3 Bc5 Rgh3 Be7 Rhg3 Qde1 Bg5 R6f7 Bf6 Qed2 Bg7 Bh4 Rc2 Rf6 Rc7 Rc6 Rgh3 Rc1 Rc4 Rb1 B3c2 Rc1 Rb3 Ra1 Rhf3 Rb1 Bd3 Rc1 B1c2 Rf1 Bd1
qB1RR1q1/2P1n1PN/3N1Q2/2N1pB2/1K2bqB1/2r3P1/q2N1b1p/2kbN3 b - - 0 1 legal: proof: d4 b5 e4 c5 h4 a5 a4 d5 axb5 g5 hxg5 Ra6 f4 e5 f5 Re6 fxe6 Na6 Rh3 Nc7 Rh6 cxd4 Rh1 d3 Nd2 d4 Nb1 Nd5 exd5 Qd6 Na3 Qd7 Nb1 Qd8 Kd2 Ke7 c4 Kd6 b4 f5 b6 h5 b5 Kc5 d6 Kb4 g3 a4 g6 f4 b7 f3 b8N f2 e7 a3 e8B a2 d7 h4 b6 h3 g7 h2 b7 Rh4 c5 Rh3 c6 Rh7 c7 Rh6 Bh5 Rd6 Nf3 Rg6 Bg4 Re6 Bfh3 f1Q Na6+ Kc4 b8N Ne7 Nc5 Bb7 Ne1 Be4 Qf3 Rc6 Qf6 Qe8 d8N Qf4+ Kd1 d2 Nf7 Qd8 Nbd7 Qa8 Bf5 Kb4 Bhg4 Kc4 Nd6+ Kb4 Ne6 Kb3 Ng5 Rc2 Ba3 Rc3 Bc5 Kb2 Ke2 Kc1 Ba7 Rb3 Nc5 Rc3 Nc2+ d1B+ Ke1 d3 Nh7 Qg5 Bb8 Qf4 Nd2+ Kb2 Rc1 a1Q Rf1 Q1a2 Ra1 Qg8 Ra5 Kc1 Rf2 Qad5 Ra8 Qa2 Re2 Bf3 Re4 Bh1 Rc4 Be4 Rd4 Kb2 Nf7 Ng6 Nf3 Rc4 Na4+ Kc1 Ba7 Bc5 Re8 Ne7 Rdd8 Be2 Bb8 Be3 Nc5 Qa8 Nfd4 B2f3 Nd6 d2+ Kf1 Bf2 Ne1 d1Q Ndb3+ Kb2 Nd2 Qb3 Ncb7 Kc1 Nc5 Bh1 Ke2 Qba2 Ncb7 Bef3+ Kd3 Bd1 Nc5 Ra4 Kc3 Be4 N6c4 Ra3+ Kb4 Rc3 Nd6
4KnNN/2RPpr1r/2pQ1Rq1/1R1nPn2/7B/R7/1nP1k1qB/B1q3R1 b - - 0 1 legal: proof: f4 f5 e4 d5 a4 b5 axb5 g6 exd5 Bg7 g3 Be5 fxe5 f4 g4 Bf5 gxf5 h6 Bh3 h5 Bg4 hxg4 Ke2 Kf7 Kd3 a5 Kd4 a4 Kc5 f3 b4 g5 d4 a3 h4 f2 h5 f1N b6 a2 h6 g3 d6 g2 f6 Ke6 h7 Kf5 d5 Ke4 d7 g4 f7 g3 f8R Ra5+ b5 Nd2 d6 Ke3 b7 Ra3 b6 Rb3 Rf6 Rb2 Ne2 g1Q Nbc3 g2 Ne4 Qc8 d8B Nd7+ Kc6 Qf2 b8R g1N b7 Nf8 Nf4 Nh6 Ng6 Qcf5 Rc8 Qh2 b8R Qg3 Rb5 Rb3 Bb2 Ngf3 Rg1 Ng8 d7 Nc4 Qd6 Ra3 Kb7 c6 Bb6+ Nd4 Kc7 Ke2 Kd8 Qgf2 Rc7 Qg2 Ke8 Rf3 Bc3 Qfg4 Ba7 Nf5 Be3 Ne6 Bf4 Nb2 Bh2 Nf8 Bd4 Ne3 Bc3 Nh6 Bd4 Nhf5 Bc3 Rg8 h8B Nd5 Bg7 Rh3 Nh8 Rh7 Bh6 Rg6 Bg5 Rgg7 Bh4 Rf7 Rac1 Nd3 Ba1 Nb2 Rcd1 Qh5 Rd3 Qhg6 Ra3 Nd1 Bc3 a1Q Bb2 Qc1 Ba1 Nfe3 Re6 Nf5 Nf6 Nb2 Ng8 Qd1 Rf6 Qdf1 Rcb7 Qc1 Rc7
3B1n1q/1PRRn2P/3N3q/1N2qnR1/n3BQ1k/R3rp1p/2PR4/5KNr b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qb6 g5 Qd8 h3 h5 Qd3 Bb7 Qb3 Bf3 Qc3 Bg4 Qd2 g6 Qd3 Bh6 gxh6 g5 Qd1 Bf5 Bd2 g4 Bg5 g3 Bc1 Bg4 hxg4 Kf8 Rh2 Ke7 Rh1 Ke8 b4 Ke7 e4 f5 b6 d5 b7 a5 g5 g2 g6 a4 e6 Kf6 g7 f4 e7 Kg5 e8N h4 b5 d3 b6 d4 e5 a3 e6 a2 e7 Nd7 b8R Nf8 b7 Ra3 Nd6 d2+ Kf2 d3 e8R f3 Qe2 Kh5 Rc8 Ne7 g8R d1N+ Ke1 Nc3 Bg5 Qa5 Red8 Qe5 Rc7 Na4 Nc3 d2+ Kf2 d1Q Rdd7 Qc1 Ncb5 Re3 Rh2 Rh7 Qd2 Kg4 Bd3 Rh8 Rb1 a1Q Be4 Rh7 Rg6 Qh8 Qe2 Qae5 Ra1 Kh5 Ra3 Qd2 Nh3 g1N Kf1 Kg4 Qf2 Ne2 Ng1 Nd4 Qg3+ Kh5 Rg2 Ndf5 Qh2 h3 Bf6 Rg7 R6g5+ Kh4 h7 Rg6 Nc4 Qdd6 Rd2 Qde6 Ncd6 Rg8 Bg7 Qh6 Bf6 Neg6 Bd8 Nge7 Rg3 Rg4 Bd5 Rge4 Rg5 Rg4 Be4 Rg2 Qh1 Rh2 Qg2 Rh1 Qe2 Q6g7 Qh2 Qh6 Qf4+
2Bk1B2/3nnPBr/n7/nB1pPp2/1NRn2n1/2Q3K1/1P1b1B1N/Nr5R b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 b5 gxh5 Nh6 axb5 Ng8 e5 Rh6 Ne2 Rh7 Ng1 Rh8 f3 f5 Bg2 Bb7 Qe2 Be4 Bf1 e6 Qd1 Qf6 exf6 e5 Be2 Bc6 Bf1 e4 Ra4 e3 Ra1 Be4 fxe4 Bc5 Qe2 Be7 Qd1 Bf8 h4 a5 c4 d5 c5 g5 c6 d3 f7+ Ke7 e5 a4 h6 g4 b6 e2 Kf2 e1N h5 a3 c7 d2 c8B a2 h7 Nh6 b7 Kd8 Bb5 Nc2 Kg3 Ng8 h6 Nd7 b8N Nb4 Na3 Na6 Qe1 d1N Qc3 Nf2 Be3 Ne7 Rc1 a1N Nc2 Nb3 Na1 Na5 Nf3 Bg7 Nh2 Bf6 Qa3 Bg5 Rc4 Ra7 Bc5 Bd2 Qc3 Ra8 Kh4 g3 Nc6+ Kc7 Be3 g2 Kg3 g1N Nb4+ Kd8 Ba7 Ng4 Bf2 Rg8 h8B Rg7 h7 Nf3 Be3 Nd4 Bf2 Rg5 Bf6 Rg7 h8B Rh7 Bhg7 Ra7 Bf8 Rc7 Re1 Rc6 B6g7 Rch6 Nf3 Rh1 Nh2 Rf1 Re4 Rc1 Re1 Rb1 Rh1
3B1R2/2N1Qbp1/p1n1pPB1/3nP1N1/P1k4b/4r2b/1K2NqRq/1R2N2N b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 f5 g4 c5 gxf5 c4 b4 c3 f4 c2 f6 a6 f5 Ra7 h5 Rc7 h6 Rc5 bxc5 Nxh6 c6 Ng8 Qxc2 Kf7 Qd1 Ke8 e4 Kf7 d4 h5 Kd2 h4 Kc2 b4 a4 h3 c7 b3+ Kb2 h2 e5 Be6 c8N Rh6 d6 Bc4 d5 Bd3 d7 Rh3 d6 Rh6 Nd2 Bb5 Rb1 Rh5 Ne2 Qe8 Rg1 h1B Nf3 Rh4 Ne1 Bc4 Rg2 Nc6 Bg5 Rh3 d8R Re3 d7 Be6 Qd6 Bd5 Nf4 Bc4 Bd3 Bd5 Ne2 Bc4 Rh2 Bg2 Bc2 Bh3 Rg2 Nh6 Qb4 Ng4 Qb7 Rc3 Bh4 Ne3 Qb4 Nd5 Nd6+ Kg8 Ne4 Kf7 Ra8 Re3 Nf2 Qd8 Nh1 Qb6 Ka3 b2+ Bd3 Bb3 d8N+ Ke8 f7+ Kd7 Ne6 Qd4 Ra1 b1Q Nc7 Qc2 Rb1 Qf4 Rb8 Qh2 Bg5 Qc5 Kb2 Qd4+ Kc1 Qh4 Kb2 Qf2 Rc8 e6 Qh4 Bd1 Bd8 Be7 Qb4 Bg5 f6 Bh4 Bg6 Bc2 Bh5 Bh7 Bg6 Bg8 Ra8 Na5 f8N+ Kc6 Qa3 Bf7 Nh7 Kb6 Ng5 Nc6 Be7 Ka5 Rf8 Kb6 Bd8 Ka5 Qa2 Kb4 Qa3+ Kc4 Qe7
4N2N/1Q1nRK1P/1pP2p2/1rNnP1pr/1rN2bB1/4k1bN/2B4R/6Rb b - - 0 1 legal: proof: f4 e5 fxe5 c5 d4 a5 dxc5 a4 g4 a3 g5 h6 g6 f6 Bg5 hxg5 bxa3 Qe7 a4 Kd8 a5 Qf7 gxf7 Ke7 Kf2 Ke6 Kg3 Kf5 c4 Ke4 Kg4 d5+ e6 g6 h4 b6 a4 d4 h5 d3 h6 d2 a6 Bd7 c6 Bb4 f8N Be7 c7 Bb5 c8B Ba3 a7 Ke3 h7 Be8 e7 Nc6 c5 Na5 c6 Kd4 e4 Bf7 e8N Bd6 Na3 Ne7 Nc4 Nd5 Bd3 Bc7 Nh3 Rg8 Bc2 Bg3 e5 Nb3 a5 Nc5 a6 Nd7 Rh2 Rg7 Qe2 d1R Rb1 Rd3 Rg1 Rb3 Qf1 Rb5 Qg2 Rb8 a8R Rb7 Rb8 Ra7 Rb7 Ra8 a7 Be6+ Kf3 Bf5 Rc7 Be4+ Kg4 Bf4 Qg3 Bh1 Qa3 Rg8 Qa6 Rb4 Qb7 Rg7 Ned6 Bg3 Nf7 Bf4 Nd2 Ke3 Ne6 Rb5 Nc5 Rb4 Nh8 Rb5 Nf2 Rb4 Kh3 g4+ Kh4 g3 Nh3 g2 Kg4 g5 Kf5 Rg6 Ke6 Rh6 Kf7 Rh5 Nc4+ Kf3 Rb1 g1B Rf1+ Bf2 Rg1 Rb8 a8N B2g3 Qa6 Rb5 Ra7 Rb4 Nc7 Ra8 Ne8 Rb5 Rc7 Ra7 Qb7 Ra4 Rb1 Rab4 Rg1 Nf8 Re7 Nd7 Ncd6 Nb8 Be6 Ke3 Bg4 Nd7 Nc4+
QrbRBn2/6qP/2K3p1/2p3nN/2PN1Rk1/2P2Nn1/1pr1RBR1/1R1n4 b - - 0 1 legal: proof: e4 a5 b4 b5 g4 h5 gxh5 f5 exf5 e6 c4 axb4 a4 Bc5 axb5 Bd4 Qa4 Ra5 Qd1 Bc3 dxc3 Ra8 Kd2 Kf7 Ke3 Kf6 Ke4 c5 f4 g6 h4 e5 Kd5 e4 b6 e3 h6 b3 h7 e2 b7 e1N h5 d6 h6 b2 Rh2 Qc7 Nd2 Qg7 Ngf3 Ra5 Nb3 Nc2 Rg2 Ra4 Be3 Bd7 Rb1 Ra2 Nbd4 Qf8 Bf2 Na6 b8N Bc8 Kc6 Ne1 Qa4 Nc7 Qa8 d5 Be2 Qe7 Bd1 Qg7 Ba4 Ne6 Bb5 Nf8 Nd7+ Ke7 Nf6 Ra1 Nh5 Nf6 Ba4 Ne4 f6+ Kf7 f5 Ng3 Nh4 Rg8 h8R Nf3 h7 Ng5 Bb5 N3e4 Nhf3 Ng3 Re1 Rc1 Re2 Rc2 Ba4 Nd7 Bb5 Rd8 Rhe8 Nf8 R8e4 Be6 Rf4 Rb8 Ba4 Ke8 f7+ Ke7 Nb3 d4 f6+ Kd8 Bb5 d3 Nbd4 d2 Rh4 d1N Rh1 Ne3 Rb1 Bg4 Kd6 Bf5 Be8 Nd1 Kc6 Bc8 Kd5 Nd7 f8R Kc7 Rg8 Nf8 f7 Kd8 Ne6+ Ke7 Kc6 Qh8 Ned4+ Qe5 Nb5 Ke6 Rh8 Kf5 Nbd4+ Kg4 Rg8 Nd7 f8R Qh8 Rf6 Qg7 Rgf8 Nf7 Rd6 Ng5 Rf5 Nf8 Rd8 Qe7 Rf6 Qg7 Rf4+
3NqBQK/pbpN4/NN3P1N/q4p2/P1r2k1B/q2r2PR/q1n3B1/4R3 b - - 0 1 legal: proof: e4 b5 c4 bxc4 g4 f5 g5 d5 exd5 g6 h4 Nd7 Rh3 Ndf6 Rh1 Bh6 gxf6 g5 Na3 g4 Nb1 Bg5 hxg5 Bd7 Bh3 Be6 Bf1 Bc8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 a4 c3 d4 g3 b4 g2 b5 c2 d6 e6 d5 h4 d7 h3 b6 h2 b7 Qe7 d8B Rh3 b8N Qg7 d6 Rh6 d7 Ne7 Nd2 Qf8 Qg4 Qe8 Nc4 Rh4 Nb6 Bb7 Nf3 g1Q Na6 Nc6 Be7 Nd4 Bf8 Rd8 Be3 c1Q Ne5+ Kh7 Bd2 Nc2 Be3 Qa3 g6+ Kg8 Kg5 Qg3 g7 Kh7 Nf3 e5 g8N e4 Nh6 Qh3 Ne5 Qg3 Bc1 e3 Bg2 e2 Bf4 e1Q Rb1 Qh3 Bg3 Qa5 Qc4 Qa2 Rbe1 Rf4 Bh4 Qha3 Re3 Re4 Rhe1 Rd4 Rh3 h1Q Be4 Qh2 Bg2 Qee7 Qe6 Qhg3+ Kh5 Rd3 Qd5 Re8 d8N Qe6 Ned7 Qe2+ Ng4 Re4 Kg5 Rc4 Kh5 Kh8 Kg6 Qe4 Kf7 Kh7 Nh6 Qe2 Bc5 Qe4 Kf8 Kg6 Kg8 Qee5 Kh8 Qe8+ Bf8 Kh5 Ng8 Kg4 Nh6+ Kf4 Qf7 Rb3 Qg8 Rd3 fxg3+
R3r3/1n2R1RP/3B2K1/3p1nNR/PBPRr2q/3p1k1B/p1Qn1n2/4nN2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Qb6 a5 Qd8 b3 e6 Qe2 b4 Bh6 Bc5 Bg2 Ba6 Bf4 Bb5 Bf1 Bb6 axb6 a5 Qd1 a4 Bh6 a3 Bc1 Ba4 bxa4 Ra5 Bh6 Ra7 Bc1 Ra8 Ke2 Ke7 Kf3 Kd6 Ke4 g5 c4 g4 f4 a2 h4 e5 b7 b3 h6 g3 h7 d3 h5 g2 f6 b2 Kf5 e4 f7 e3 f8R e2 h6 e1N Kg6 Ra5 f5 Ke5 f6 Ke4 f7 d5 Nh3 g1N Re8+ Qe7 f8R Qe5 Qc2 Nc6 b8B Rb5 Bd2 Nd8 Re7 Nb7 Bb4 Rb6+ B8d6 Ra6 Rc8 Kf3 Ra8 Qf4 Rh2 Qh4 Nd2+ Kg4 Ng5 b1N Bg2 Nh3 Nf1 Nd2 Rb1 Nf2 Rc1 Qg3 Rh5 Qh4 Rb1 Rc6 Rg7 Rc7 Rd1 Re7 Rc1 Nef3 Re1 Re4 Re3 Ne1 Re2 Nf6 Re3 Rb8 h8R Ng8 h7 Nh6 Re8 Nf5 Ree7 Re8 Re2 Re5 Bh3+ Kf4 Nf7 Kf3 Re4 Rc8 Rg4 Re8 Rd4 Re4 Ng5+
1R3N1K/pbpRQ3/1PN1n1B1/br3p2/1r1Br3/P1R4R/2PN1Rr1/2k1b3 b - - 0 1 legal: proof: f4 g5 a4 e5 d4 Qe7 dxe5 Qd8 fxg5 h5 g4 hxg4 Nd2 b5 Ra2 Nc6 Ra3 Nd4 Ra1 Qe7 Nb1 Qa3 bxa3 b4 Nh3 Bh6 Ng1 Nb5 axb5 Bf8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 e4 f6 h4 d4 b6 g3 g6 g2 h5 b3 g7 b2 h6 d3 h7 d2 Qe2 d1R Rh3 Bd7 Be3 Be7 Nf3 g1B Nbd2 b1R Bd4 Nh6 g8R Rbc1 Rd8 Bc8 Rd7 Rf8 h8N Nf7 Ng6 Rh8 Rb1 Rb8 Rb3 Nd8 Rc3 Rb1 Kg4 Rf8 Kh5 Re8 Kh6 Rb4 Kg7 Rdb1 Kh7 Bf8 Kh8 Bf2 Qe1 Bb7 Bd3 Re7 Qe3 Be1 Qg5 Rg7 Qh4 Be7 Nf8+ Kf7 Qg5 Ra8 Qe3 Rg2 Qg5 Rb5 Qh4 R1b4 e6+ Ke8 e5 f5 Bc4 Bd6 e7 Ne6 Ba2 Kf7 e8R+ Be7 Rb8 Bg3 Nh7 Kg6 Bb3 Bf8 Qe7 Be1 Bc4 Bh6 Ba2 Bg5 Bb3 Bgh4 Nf8+ Kh5 Bd5 Kg4 Bc4 Kf4 Be2 Nc5 e6 Bhf2 Ne5 Be3 Nb3 B3d2 Nc6 Ke4 Bh5 Kf4 Qh7 Ke4 e7 Ne6 e8R Kf4 Bg6 Ke4 Rh5 Kf4 Be3+ Kf3 Red8 Ke2 Qe7 Kd1 Rh7 Bg3 Bd4 Bge1 Rg3 Bc3 Nd2 Kc1 Rh2 Rc4 Rhh3 Ba5 Rc3 Ra4 Rd5 Rab4 R8d7 Ba6 Rb7 Re8 Rb8 Bc8 Re5 Bb7 Re2 Nf4 Qh7 Re4 Rf2 Ne6 Qe7
2nN3N/5Bb1/4nB2/qkp3pP/P5RB/2PqN3/p1q1B1bB/KQ3R1q b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 a5 a4 b5 axb5 Ra6 Ra2 Re6 Ra3 dxe4 Ra1 e3 Nh3 e4 Ng1 Re5 fxe5 Be6 Nc3 Bg4 Nb1 Bc8 d4 Kd7 h4 f5 b3 c5 b6 Kc6 b7 f4 h6 a4 d5+ Kb6 h5 a3 e6 f3 e7 e2 Kd2 e3+ Kc3 e1Q+ Nd2 e2 e8B g6 h7 a2 Kb2 f2 c3 Nc6 b8B Qh4 d6 Bh3 d7 Nce7 d8N Bg2 Bh2 Nd5 Nh3 Bg7 Ng5 Nc7 Rg1 Ne6 Bf7 Qa4 Nc4+ Kb5 Ne3 Qa5 Qc2 Ne7 Qb1 Re8 h8B Nc8 Bd2 Qd1 Be1 Bf3 Rg4 Bg2 Nh7 g5 Nf8 Re7 Ng6 Rb7 Bb8 Ra7 Bh2 Bh6 B8e5 Bg7 Nh8 Ra6 Bf6 Qd3 Bd2 e1Q Be2 Qd1 Be1 f1Q Bh4 Qf3 Qc2 Qh1 Rf1 Qf2 Ka1 Qf5 Qb1 Qf2 Bd1 Qfc2 Be2 Qa3 Rg1 Ra4 Re1 Qb4 Rf1 Qa5 bxa4+
k1R1R1r1/2BPNqR1/2pr4/1Nr2bp1/4PqP1/2N3p1/NB1bKN2/6rQ b - - 0 1 illegal: No extended proof kernel
B2bNR2/3pp3/P3QnRR/k2P2r1/p2r2p1/q5P1/1bR2BK1/N2nB2R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 c5 bxc5 h5 a4 b5 axb5 Ba6 bxa6 h4 g3 h3 Qf3 Qc8 Qd5 Qd8 Qg2 hxg2 c4 g5 d4 a4 f4 g4 Kf2 Bh6 h4 Rh7 h5 Qc8 f6 Kd8 c6 Kc7 f5 Kb6 c5+ Ka5 f7 Kb4 f8R Qc7 f6 Qa7 f7 Bg5 c7 Qb7 c8R Nc6 h6 Bf6 Be3 Nd8 c6 Be5 c7 Ka5 Nf3 g1B+ Kg2 Qb5 Bf2 Qb8 Nh4 Rh8 h7 Qb6 Nf5 Nf6 Rh6 Kb4 Nd6 Qc5 Rg8 Nh5 f8R Nf7 Na3 Rb8 Rgg6 Ng5 Ne8 Ne4 Nc2+ Ka5 d5 Rb6 Bb5 Bb2 Bc6 Qa3 Ba8 Rg8 h8B Rb4 Bc3 Nhf6 Bce1 Nc3 Rd1 Rc4 Na1 Rd4 Rc1 Rg7 Rc2 Rg8 Rd8 Rg7 c8Q Rg8 Qc6 Rg7 Rd2 Nd1 Qe6 Rg8 Rh1 Rg7 Rgh6 Rg5 Rc2+ Rb4 Ba7 Bb6 Rdc8 Bd8 R8c6 Nc3 Baf2 Rd4 Qe5 Nh7 Rcg6 Nf6 Rd2 Nd1 Qe6 Qb3 Re2+ Qb4 Rd2 Qa3 Rc2+
Qb2NNr1/1RBP3p/2NBp1pq/n3P1p1/2pPNRK1/4B3/8/3rbk1N b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 b4 g4 b3 Bg2 Bb7 Be4 Nf6 Bg6 fxg6 axb3 Ba6 b4 Bc8 b5 Ng8 h4 g5 f5 g6 f6 Nd7 h5 Nc5 h6 Bf5 gxf5 Ne6 Rh5 Qd6 Rh1 Ng7 hxg7 Qd8 Kf2 Kd7 Kf3 Kd6 e4 Ke5 b4 Kd4 e5 Kd3 d6 c5 d7 a5 b6 e6 b5 a4 f7 a3 f6 a2 b7 c4 b8N Be7 f8B Ra3 b6 Bc5 f7 Rb3 b7 Qa5 Nc3 Ra3 Nh3 Qa8 Rf1 Bd6 Nc6 Qa5 b8B Nh6 g8N Qc5 Rb1 a1B Bc7 Nf5 Rb7 Nd4+ Kg4 Nb3 Nf6 Rg8 Nce4 Bc3 Ne8 Na5 Qa4 Ke2 d4 Ra1 Rf4 Be1 Nhf2 Kf1 Be3 Rd1 Be7 Qa3 f8N Qa2 Nh1+ Qf2 Bcd8 Bc7 Bd6 Bb8 Rf7 Qf6 B8c7 Qf2 Re7 Qh2 Rf7+ Bf2 Rf4 Qh6 Kf3 Be1 Qa1 Nb3 Qa8 Na5 Kg4+
2b2kNb/2r2NN1/5rP1/r2R4/BBBbPB1q/3r3n/nPr3n1/K3R1BQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 e4 a5 d4 c5 Kd2 f5 Kc2 h5 g4 h4 g6 c4 g5 a4 b6 a3 d6 a2 g7 c3 d5 f3 g6 f2 b7 f4 Bg2 f1N Qd4 f3 Bd2 h3 Ne2 h2 Nf4 f2 Bh3 Ra5 Nh5 Nh6 g8B Na6 b8B Bg7 d7+ Kf8 d6 Qh4 d8B Rh7 d7 Nf7 Bb6 Ng5 d8N Bh8 Bd7 Nh3 Ba4 Rc7 Ng7 Ne3+ Kb3 f1R Nf7 c2 Bb4+ Rac5 Qd1 c1B Nc3 Rf6 Nd5 Ng2 Re1 h1R Ne7 Rc2 Bg1 Be3 Qf3 Bb6 Rad1 a1R Rd5 Bd4 Qf1 Rd1 Ka2 Rd3 Ka1 Rh2 Qf3 R2c5 Qd1 Ra5 Qf3 Rc2 Bf4 Rc7 Bbd6 Nb4 Qh5 Na2 Bb4 Ne3 Qf3 Rhc2 Qh1 Ng2 Ne5 R7c6 Be6 Qh6 Nf7 Qh4 Ng8+ R6c5 Rd6 Rc6 Bc4 Rc7 Rd5+
2bq1B2/2R3BK/Nk5n/bQ1PqP1n/1B2nrP1/1NB2qqr/R5N1/1q3B2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 Kc7 d4 a5 b4 h5 f4 c4 d6+ Kb6 f6 h3 d7 c3 Kf5 h4 Kg6 a4 f5 c2 d5 e4 f7 a3 Bd2 c1Q Qa4 h2 Ne2 e3 Bc3 a2 Nf4 e2 Ng2 e1Q Nd2 h3 Nb3 Qg3 Bg7 Be7 f8B Qb1 Rg1 h1N Bc3 Qdc7 d8B h2 Kg7 Bd6+ Bde7 Rh3 Kg6 Nh6 Kh7 Nf2 Qa5+ Kb7 b6 h1Q b5 Nd7 Bef6 Bf4 B6g7 Ne4 Qb4 Qd8 Qc5 Kb8 b7 Ra4 Qb4 Kc7 b8N Bd6 Na6+ Kb6 Qc4 Bc7 Qe2 Kb7 b6 Rd4 Qb5 Ndf6+ Kh8 Nh5 Kh7 Qbd3 Rc1 a1Q Rc2 Qb1 Ra2 Qdf3 Bfb4 Qhh2 Bgf8 Ka8 b7+ Ka7 Rh1 Ba5 b8B+ Ka8 Bc7 Ka7 Be5 Rc4 Bh8 Qe5 Bhg7 Qhg3 Be2 Rd4 Rc1 Rc4 Bf1 Rd4 Qe8 Kb6 Qd7 Rc4 Qb5+ Ka7 Be2 Nd6 Bf1 Rf4 Be1 Ne4 Rc4 Bb6 Bec3 Ba5 Qd7+ Kb6 Rc7 Qdf6 Qa4 Qd8 Qb5#
nn1r1N2/3b2B1/2b2b2/P2rQ1qb/2KPBB2/q1P3R1/2bkN1B1/B3nRN1 b - - 0 1 illegal: No proof kernel
2b1NR2/1QbPnK2/1r1RP3/Rn4N1/b1RBR2q/2q1PBb1/4N1k1/4r1bq b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Ke7 Ke3 h5 Kf4 f5 Kg5 a5 Kg6 c5 g4 h3 d4 f4 b4 c4 b6 h2 d6+ Ke6 g5 Kd5 d7 Ke4 e6 f3 b5 h4 d5 a4 b7 a3 d6 f2 b6 c3 Nh3 a2 Qe1 c2 Qd1 Qc7 d8R Nc6 b8R Ra6 b7 Nge7+ Kf7 Nd4 g6 Rb6 g7 Nb5 g8N Qc3 Be3 c1B Bd4 Bf4 Qb3 Bg3 Ng5+ Kf4 d7 h3 Bg2 f1B Bf3 Rh6 Rg1 h1Q Nf6 h2 Ne8 Bg7 Ra8 Be5 b8R Bc7 Ra4 Bg2 Rc1 Rg6 Bg4 Bc6 Bf3 Qhe1 Rd1 h1Q Rc4 Qh4 Ra8 Qeh1 Raa4 Rg8 Nf6 Rh8 Rf8 Rh6 Ne8 Rh5 Nh7 Re5 Ng5 Re3 Bf6+ Re4 Rd6 Ke3 Qb4 Kf2 Bd4+ Re3 Qa5 Kg1 Qa7 Kh2 Qb7 Re5 Nd2 Re3 Re1 a1B Nb3 Bb2 Raa1 Ba3 Nc1 Bc5 Ra5 Re4 Be5 Bg1 Bh8 Na3 Bd4 Ba4 Rd1 Nb5 e3 Rg4 Ne2 Rf4+ Bf6 Rd4 Rb1 Rd1 Rbb4 Re1 Re4 Nf5 Bd4 Ne7 Bh5 Kg2 Rc4 Q1h2 Bg4 Qh1 Bf3+
1r2br1q/1P2bq2/5BB1/1n2R1R1/1Qr1n2P/2nB1rr1/NPN3N1/k1K1N1N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Ke7 d4 Kd6 Kd2 g5 e4 a5 b6 c5 b7 f5 h6 a4 h7 f3 Qc2 a3 Nh3 f2 Bg2 f1Q Ng1 a2 Qd1 g4 Qa4 g3 Na3 f4 Nc2 c4 Ne1 Na6 Qb4+ Nc5 Bh3 g2 Bf5 f3 Kd1 c3 Bg5 f2 Kc1 c2 Bf6 Ne7 e5+ Kc7 d6+ Kc6 e6 Kd5 d7 Rb8 Bd3 Ne4 Rb1 a1N Rh3 Qe8 d8N Bd7 Nc6 Qf7 Rg3 Be8 Rg4 Qe2 Rg7 f1R Rg8 Qeh5 Rg5+ Nf5 e7 Nc3 Ne5 Ng3 Nc4+ Rf5 Na3 Rg8 h8N Nge4 Ng6 Qh8 Ngf3 g1R Nf4+ Kc6 Ng2 Kd5 Qb6 Rf1 Ng1 Rf3 Qb4 Rg7 Rh5 Rgg3 Rg5 Ba4 e8B Be7 Bd7 Bb5 Bc8 Be8 Bd7 Re5 Bg4 Ref5 Bh5 Nb5 Bg6 Nec3 Kd2 c1R Nac2 Kc6 d5+ Kb6 Qc5+ Ka5 d6 Ka4 d7 Kb3 d8N Ka2 Qb4 R5f4 Nc6 Rc4 Bdf5 Rcf4 Nd3 Rcf1 Re1 Rc4 Re5 Kb1 Nde1 Ka2 N2d4 Nb3+ Kc2 Nc5 Bd3 R1f2+ Kc1 N5e4 Ndc2 Qfg8 Bg7 Rf8 Bf6 Rff3 Qc5 Qgh7 Qb4 Qf7 N6d4 Na4 Nde2 Nbd6 Kd1 Nb5 Nc1+ Kb1 Nd4+ Ka1 Na2 Nac3+ Kc2 Rh3 Kc1 Rhg3 Ndc2+
2N1Q1bn/Pnb1K2N/1b3N2/k5bB/2rb4/2P1N2r/B1Pq2R1/1N1Rr1Bq b - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 h5 g4 f5 exf5 hxg4 Nf3 c4 Ng1 c3 dxc3 Ra6 Bb2 Ra7 Bc1 Ra8 Kd2 d5 Kd3 Kd7 Kd4 Kc7 Kc5 g5 h4 b5 f4 g3 a4 d4 h5 d3 a6 g4 a7 g2 h6 b4 a5 g3 a6 d2 f6 b3 h7 b2 f7 Nh6 f5 Nd7+ Kd5 Kb6 f6 e5 Ke6 e4 Ne2 g1B Nd4 g2 Be2 e3 Qe1 d1Q Bh5 e2 Rh2 Bd6 f8N Bc7 Nf5 Bd4 f7 g1B Rg2 Qh4 Be3 Qh1 Bf2 Nc5+ Ke7 Qd2 Ne3 Nb7 Nd7+ Kb5 f8N Nf7 Nf6 Be6 Rg7 Rd8 a8B Rc8 a7 Ba2 Rg2 Ka5 Qf1 e1B Qe2 Nbd6 Bd5 Nb7 Na3 Bc4 Rd1 b1R Be6 Ra1 Nb1 Bb3 Bg3 Ba2 Bh2 Bh4 Bc4 Bgf2 Bg1 Bg5 Bd5 Bcb6 Bb3 Bg3 Qe1 Bgc7 Bc4 Rg8 h8N Rg6 Bb3 Rh6 Nhg6 Nh8 Be6 Bb3 Nh7 Bc4 Bh3 Bg8 Be6 Bcf4 Ba2 Rc4 Kf8 Bfc7 Ne7 Ra4 Nc8 Rc4 Be8 Rh3 Ke7 Rc5 Bh5 Rc4 Qg3 Bh4 Qg6 Bg5 Na3 Rb1 Qe8 Rc1 Rf1 Re1 Nb1 Re2 Rc1 Re1 Rd1
Rb1B3n/n2bQ2r/4B1kN/PNn1nn1B/2nP2r1/2KBqR2/2n2P1B/1N6 b - - 0 1 illegal: No possible last move
4br1b/1rQR3B/1n3P2/P1n3B1/nq1R1N2/Nq1rB1qk/R1P1K3/2BB1r2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 h4 Kf7 a4 Kf6 f4 d5 h6 b5 h7 e5 h5 g5 h6 b3 a5 b4 c6 d4 c7 b2 Kd2 d3 Ra4 b3 Rh3 e4 Ra3 g4 Ne2 e3+ Ke1 g3 Ra1 g2 Qd2 g1R Na3 b1N Rh5 b2 Rh1 Na6 Nc4 Ra7 Ra2 Ne7 Qc3+ Qd4 Na3 Nd5 Rh4 Bd7 c8B Nb6 Qc7 d2+ Kd1 Rhg8 h8R Rb7 Rh7 Be8 Rd7 Qb4 h7 Nc5 h8B+ Bg7 Rg4 Rg3 Bg2 Rf8 Be4 Ra7 Ba6 Rb7 Bc4 Qb3 Bg8 Rf3 Bh7 Rf2 Bf3 Qb4 Ng1 Rf1+ Ke2 d1R Nh3 Rd3 Rh4 Nca4 Bg4 Nd2 Bf3 b1Q Rg4 Qe7 Rh4 Qb3 Rg4 Kf7 f6 Ke6 f7 Qeb4 f5+ Kf6 Nf4 Ne4 Rh4 Kg5 Bg4 Ba1 Bd4 Bb2 Bc5 Bh8 Bd4 Nec5 f6 Re1+ Kf3 e2+ Bde3 Red1 Bh5 e1Q Bg4 Qg3+ Ke2 Rg8 f8B Rf1 Bh5 Bg6 Bh6+ Kf5 Bg5 Rf8 Bg8 Bf7 Ne6 Be8 Rhd4 Q4c4 Nf4 Qcb4 Bhf7 Kg4 Bh7 Qg1 Bh5+ Kg3 Ne6+ Kh3 Nf4+ Kh2 Bf3 Rc3 Kd2 Qg3 Bd1 Rd3+ Ke2 Qg2+ Bf2 Qg3 Ng6 Kg2 Bfe3 Kh3 Nf4+
3b1Rrq/n1B1Q3/P5k1/qBb1qr2/bPPrN1KN/1NNR4/1N3r1R/n7 b - - 0 1 illegal: No proof kernel
1q4QB/1Rq1b1P1/2Nnq1b1/2b3PR/KnB2N2/2PrR3/4B1r1/2BBrrk1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 g4 Ke6 e4 h5 b4 a5 b6 d5 b5 f5 g6 h4 g5 a4 b7 f4 b6 a3 Ne2 h3 Rh2 f3 Qe1 a2 Ng3 d3 Kc3 d2 Kb3 d1Q Bb5 f2 Bb2 f1R Bc4 Nf6 Nf5 Ne8 Ne7 Nd6 Bc1 Qc7 Nc6 Qe2 Nc3 Na6 b8R Nb4 b7 Be7 Qh4 Re1 Qh7 Rf8 Qg8+ Rf7 Rb1 a1B Rh1 Bd7 Re8 h2 b8B Ra2 Ba7 Bb2 Bd4 Ba3 Ka4 Qg4 Rb3 Qh3 Rb8 Be8 Ne2 Rb2 Rb7 Qe3 Qf8 Rff1 Qg8+ Bf7 Rd3 Qg3 c3 Rd2 Rg1 h1Q Re3 Qh6 Rh1 Rd3 Rh5 Rg1 Bb3 Rg2 Bd1 Qb8 Bb6 d4 Bd8 Bf8 Bf6 Be7 Bh8 Qh2 g7 Qf4 Qf8 Bg6 Qd8 Rd2 Qf8 d3 Qg8+ Qf7 Ng1 Rdf2 Nh3 d2 Be2 Rff1 Bd1 Qc7 Be2 d1R Nf4+ Kd7 Bc4 Qf8 Be2 Rd3 Bd1 Nc8 e6+ Kd6 e5+ Kc5 Be2 Kc4 Bd1 Bc5 Be2 Nd6 e7+ Nf7 e6 Qfb8 e8B Nd6 Rh1 Qh3 Bf7 Qg4 e7+ Qe6 Nh3 Kd5 e8B Kc4 Rg3 Kd5 Nf4+ Ke4 Rh5 Rd2 Rg4 Ke3 Rg3+ Kf2 Re3 Rd3 Bd7 Kg1 Bde8 Qe5 Bc4 Qe6 Bf7 Bb2 Bb3 Ba3 Bbd1 Na6 Be8 Ba7 Nd8 Nc4 Rh2 Be7 Bb5 Nb4 Nc6 Nd6 Bc4 Bc5 Rh5
B3k2R/2P2r1r/2P1rNqQ/1R1P1b2/n3b2r/K2RBn2/R2q2B1/q3bNR1 b - - 0 1 illegal: No proof kernel
rN1k3K/1P4PB/2Qn2B1/2q1n1qq/NPBR4/1rN2R2/qb1nbrB1/B7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 Kd3 h5 Ke4 d6 g4 h4 c4 d3 b4 f6 c5 h3 b6 d2 g6 a4 g7 a3 e6 h2 Kf5 d5 Kg6 a2 e4 f5 b7 f4 g5 f3 c6 d4 e5 d3 c7 f2 e7 Nc6 Qf3 d1N Bb2 d2 Ne2 Ne3 Nbc3 d1Q Bg2 f1R Nd4 Nh6 g8B Qb3 Bc4 Qd7 Rd1 Rf2 Rhf1 h1Q Ba1 Nf7 Kf6 Rh2 g6 Nd6 g7 Rh3 Kg6 Qd8 Qd5 Bd7 c8N Bg4 Nb6 Be2 Nba4 Qc2+ Rd3 Kd7 e8B+ Ke7 Rd1 Nf1 e6 Nd2 Qb5 Qc1 Rf3 Qa5 Bf7 Kd8 Bg8 Be7 Bh7 Bf6 Qd5 Qc5 e7+ Kd7 e8B+ Kd8 Ndb5 Qh2 Nc7 Bd4 Na6 Ne5+ Kf6 Rg3 Qc6 Qh5 Nb8 Rh3 Beg6 Rg3 Bb2 a1Q Ke6 Qa2 Ba1 N2e4 Rdd3 Qcg5 Rd1 Be3 Rd4 Bc1 Bb3 Bb2 Bc4 Nd2 Rd5 Nd7 Rd4 Nb5 Kf7 Nd6+ Kg8 Ne5 Kh8 Rh3 Rf7 Rd3 Rf3 Re3 Ne4 Rb3 Nec3
1K1bN2b/5Bkr/4RRr1/P1bn1b2/2bBNPP1/QR1b2N1/4R1nr/1R3q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kf3 e5 Ke4 b5 g4 c5 d4 h5 a4 b3 f4 b4 d6 b2 Kd5 h4 f6 c4 d7 c3 a5 h3 Qd2 e4 Bb5 h2 Qe1 b3 Be3 c2 Qc3 c1B Ra2 Rh7 Ne2 Ne7+ Kd6 Na6 d5 Nc5 Ng3 Ba6 Bc4 Nd3 Nd2 b1B Bd4 b2 Qa3 e3 Nde4 e2 g6+ Kg8 g7 e1B Rg1 h1R Rf1 Qe8 Kc7 R1h2 d8R Qb5 Re8 Be3 Rb8 Bc3 Rh1 Bc2 Rb1 Ne1 Rb6 Bb3 Re6 Ng2 d6 Rd8 Bd5 Qf1 d7 Bd3 Kb7 Ra8 d8R Bbc4 Rb8 Ra6 Kc7 Kf7 g8N Bh6 Rb7 Bg5 Rb3 Kf8 f7 Rb6 Bh8 Bc5 Bd4 Ra6 Ngf6 Kg7 f8R Rb6 Rba1 b1B Re2 Rd6 Kb8 Bbc2 Bc6 Nd5 Rab1 Bb2 Be8 Bh4 Nc3 Bf5 Bf7 B2d3 Nb5 Rc6 Nfe4+ Bf6 Nc7 Bc3 Re5 Bd8 Re7+ Rf6 Re5 Rg6 Ne8+ Kh6 Re6 Ba1 Be3 Bh8 Bd4 Qf2 Bg8 Qg1 Rff6 Qf1 Nc7 Kg7 Bf7 Qd1 Re1 Qc1 Re2 Qf1 Ne8+
2K4B/bRB1q1b1/2Nkr1r1/1PR2Brb/2r1RP2/2nB1B2/1bP5/1bn1QN2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 h5 Ke4 e5 Kd5 Ke7 b4 e4 f4 a4 g4 d3 b6 a3 b5 e3 g6 e2 g5 e1B g7 d2 b7 h4 g6 h3 Ne2 h2 Rg1 h1R Bg2 a2 Bf3 Nc6 b8R Na5 Nd4 R1h5 Be4 R8h6 Rb7 Nb3 Bh1 Ra4 Ke5 Nf6 g8B Bf2 g7 Nd5 Be6 Rc4 g8B Nc3 Qe1 d1R Bb2 Nc1 Bf3 Rg6 Bh7 Rhg5 Nd2 Bh6 Rb1 a1B Nf1 Be3 Rg2 Rd2 Rh2 Re2 Rh5 Qf8 Rb6 d5 Nc6+ Ke8 Rb8 d4 Rb7 Qf7 Kd6 d3 f6 d2 Bh3 d1B Bf5 Bg7 Bd3 Qf8+ Kc7 Qe7+ Kb8 Kf8 f7 Be6 Bf5 Bd5 Kc8 Ba7 Bd3 Ree6 Bf5 N3a2 Be5 Be2 Bc7 Nc3 Rb4 Bb2 Ra4 Rb4 Bd3 Ba2 Bf5 Bb1 Bd3 Rgf6 Bhf5 Rd4 Rc4 Rfg6 Rc5 Rb4 Rh2 Bd1 Re2 Rc4 Re4 Be2 Bg2 Bh5 Bf3 Qf6 Na5 Ke7 f8B+ Kf7 Bfd6 Ke8 Be5 Ke7 Bd4 Qf7 Bb6+ Kd6 Nc6 Qe7 Ba5 Bf8 Bh8 Bg7 Bc7+
r1R1R3/3nb3/B1K2B2/N1nP1Bbn/2b2NrB/2BkN3/Pq2nr1P/1r4Q1 b - - 0 1 illegal: No possible last move
Rn4Nn/B5r1/N1R1K2Q/n1P2rR1/k2RBb1r/qPP1b2r/8/3bB1nR b - - 0 1 illegal: No possible last move
rnB2QKb/5P2/qN1r2RB/1B1bP1b1/b3Nn2/kP1R4/4N2n/1BBr1n2 b - - 0 1 illegal: No proof kernel
RrBbQbR1/1P2NNP1/N2N3B/3N1n2/kq4rP/1bnK2n1/7R/2r2n1r b - - 0 1 illegal: No proof kernel
Nb1Rn3/BN3k1N/4r1bn/q2P2R1/1P1P4/Q1n2n2/N2N3R/bbq1rB1K b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 h5 f4 e5 Kf2 a5 g4 c5 Kg2 a4 b4 c4 g5 c3 f6 h3+ Kh2 e4 g6 h4 b6 a3 g7 a2 b7 e3 f5 e2 Bf4 e1N Bg5 c2 Bf4 c1N Qa4+ Kf7 Ne2 Bd6 Nd2 Qa5 Qa3 Rh6 Nc3 Nd7 b8N Ne2 Na6 Bb8 Nc5 Ba6 Rg1 Bd3 Nb7 Nf3+ Kh1 h2 Rg5 Bb1 Bd6 Rg6 Bc5 Nh6 g8R Ra6 Re8 Re6 Rd8 Rg8 Ba7 Rge8 Nc4 Bc2 Rc1 a1B Nd2 Bb1 Na2 Nc3 Rc2 Re1 Rb2 R8e6 Rc2 Nde5 Rb2 Nc4 Rc2 Nd6 Rb2 Ne8 Rc2 Kf8 f7 Ke7 f8N Kf6 Rb2 Kf7 f6 Bg6 Nd7 Bb1 Kg2 Bg6 Nb6 h1B+ Kf2 h3 Na8 h2 Rc2 Kf8 f7 Kg7 f8N Kf7 Rb2 Bg2 Rc2 h1Q Nh7 Bh3 Rb2 Bhf5 Rc2 Be4 Rb2 Bb1 Rc2 Qh4+ Kg2 Qf4 Kh1 Qfc7 Nc4 Qf4 Rh2 Qc1 Nd2
q2r4/3n1n2/P2r3R/1q1P2R1/2kRK2n/1Nb1Bn1b/q2QPq1B/1NRB1R2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 g5 a4 c5 d4 f5 h4 b5 d6 Kc6 a5 Kd5 a6 b3 d7 g4 e6 f4+ Kd3 b2 e7 c4+ Kc2 b4 e8R b3+ Kd2 c3+ Kd3 g3 h6 f3 h7 g2 h5 c2 h6 f2 Be3 c1Q Ra2 Qc5 Nf3 g1N Bg2 f1Q Qd2 Bg7 Ra5 Qf2 Rf8 Qe8 d8R+ Nd7 Rf7 Rb8 Bh3 Rb6 Bf5 Rd6 Bg6 Be5 Rf5 Qf8 Ra1 Qa3 Rg5 Qa2 Be8 Nh3 Rhg1 Ne7 Rc1 Nf5 Bg6 Rg8 h8B Nh4 h7 Qe8 Bg7 Rf8 h8R Rg8 Rf5 Ng5 Rh6 Nf7 Bf6 Rh8 Bfg5 Qg8 Bgf4 Qf8 Bh2 Qg8 Na3 b1N Rg5 b2 Bf5 Nc3 Nb1 Nb5 Qe1 Bg7 Nfd2 Qf8 Nb3 Bf6 Kc2 Kc4 Qd2 Be5 d5 Bc3 Re8 Nb6 Bh7 Bh3 Re7 Qa8 Re8 Kb4 Kd3 Nd4 Ke4 Ndf3 Ree5 Kb5 Rg3 Rg8 Reg5 Rgd8 Bf5 Kc4 Bd7 Qa5 Ba4 Qb5 Rf1 Nd7 Rc1 N3e5 Rf3 Qg1 Rff1 Nef3 Ra3 Qg2 Na1 Qg1 Bd1 Qf2 Nb3 Kb4 Nd4 Kc4 Rb3 Kc5 Na3 b1Q+ Ndc2+ Bd4 Rd3 Q1b3 Nb1 Kc4 Na1+ Qc2 Nb3 Bc3 Rh7 Qb2 Rh6 Qa2 Rd4+
BNB2Rr1/1bnP2N1/3K1n2/4P1n1/1B4Qb/2R1q2b/kr2P3/nqb2RRR b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 Kf2 Kd7 Kf3 f5 g4 h5 b4 c5 d4 a5 d6 Ke6 d7 Kd5 b6 Kc4 d5 f4 Ke4 a4 g5 a3 g6 h3 b5 h2 g7 a2 b7 f3 b6 h4 d6 h3 Na3+ Kb4 Kd5 f2 Qa4+ Kc3 Nc2 c4 Bg2 f1Q Nb4 Qg5 d8R Be7 Bd2+ Kb2 Nc6 c3 Qg4 c2 Bb4 c1B Rf8 Na6 b8R Qe3 b7 Bh4 Nf3 Bf5 d7 Nf6+ Kd6 Rg8 Nfd4 Nc7 Rbc8 Rb8 Ne6 Qe1 Rf1 h1N Bf3 h2 Be4 Ra8 b8R Ng3 Rb6 h1B Nb8 Ra4 Ba8 Bb7 Rc6 Ra3 Rc3 Rb3 Rh1 Qf1 Rf7 Qfg1 Rcf8 Qe1 Qf4 Bh3 Qg4 Qf1 Rg1 Qf5 Rh1 Qb1 Rg1 Nh7 Rff1 Ng5 Rh1 Nh5 Rhg1 Rh8 g8B Nf6 Bh7 Rg8 Bd3 Qa7 Ba6 Qf2 Ng7 Qe3 Ba5 Ka3 Rc2 Rb2 Bb4+ Kb3 Rc5 Qh7 Rb1 a1N Rc3+ Ka2 Rh1 Bd2 Rbd1 Qb1 Rfg1 Bc1 Rdf1 Bd5 Bc8 Bf3 Rf7 Bb7 Rf8
nbB1n3/2R1r2B/B1b4Q/q3Nqrr/2P3k1/1PP1R2p/b3B1N1/nR1K2B1 b - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 b5 a4 e5 axb5 exf4 d3 c4 dxc4 Qf6 Qd4 Qb6 Qd1 Qd8 e4 Ke7 g4 Ke6 g6 h5 g5 f5 e5 a5 g7 d5 b6 a4 c3 h4 b7 d4 g6 d3 Ne2 d2+ Kf2 a3 Ng3 f3 Nh5 f4 Be2 Kf5 e6 h3 e7 a2 e8B Kg4 Bb5 Nd7 b8R Ra5 Rb7 Bd6 Re1 Ngf6 g8B Ne8 g7 Bb8 Ba6 Rg5 Rc7 Nb6 Bh7 Na8 g8B Bd7 b3 Bc6 Qc2 d1B Qd2 Bc2 Be6+ Bf5 Qe3 Qd5 Nd2 Qa5 Rb1 a1N Bg6 Rh7 Bec8 Rg7 Bh7 Re7 Ng7 Rh5 Ne6 Rg5 Ba3 Bd3 Bc5 Bde4 Rbd1 Bb1 Kf1 Ba2 Rb1 Kh4 Ba7 f2 Nf3+ Kg3 Qd2 Kg4 Qd6 Rd7 Qf8 Re7 Qh6 Rh5 Bd1 Rg5 Ke2 f1R Bg1 Rh5 Kd2 Rf2+ Kc1 Rg2 Re3 Rg3 Be2 Rg2 Nd2+ f3 Kd1 Rg3 Bed3 f2 Nf3 Rg2 Be2 f1Q+ Ne1+ Kh4 Ng5 Qff5 Ngf3+ Kg4 Qg7+ Kf4 Qh6+ Rgg5 Ng2+ Kg4 Ne5#
Q1b3N1/q1nRBBR1/8/1Rp1K1P1/1rP1Rn2/3kq3/q1r1Nn1P/1BbrR3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e5 fxg5 hxg4 d4 Rh5 dxe5 Rh8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 b4 a5 c4 d5 e3 g3 e6 g2 b6 a4 b5 a3 b7 a2 b6 Qe8 e7 Na6 b8R Nf6 b7 Nh5 Qe2 Nf4 Nc3 f6 Rb1 a1Q Ba3 Qa2 Rb5 c6 Bd6 Nc7 Qf3 Rh7 Nge2 g1Q Bg2 Ra4 Ne4 Rh3 Ra8 Rb4 b8R Rg3 Bf1 Rg2 R8b7 Qd7 e8B Qf2 Kc5 d4 Bf7 d3 Be7 d2 Raa7 d1N Rg1 Qd3 Rh1 Qda3 Kd6+ c5 Rg1 Bg7 Rh1 Qg3 Rg1 Nf2 Rh1 Na6 Rd7 Nc7 Rab7 Bh8 Rg1 Qa7 Rh1 Rg1 Bg2 Ra1 Re1 Rc1 Bf1 Rc2 Qh1 Kg4 Bg2 f5 Nf6+ Kh4 e4 Qe3 Ng8 Kg4 Bf1 Bb2 e5 Ba3 Qc6 Bc1 Qa6 Kf3 e6 Ke4 Qa5 Qb8 Qa8 Qba7 Bh3 Kd3 Bg2 N4h3 Bc6 f4 Be4+ Kd2 Bd3 f3 Be4 Nf4 Ke5+ Nfd5 Bd6 Nf4 e7 Nd1 e8R f2 Ree7 f1R Re6 Nf2 Be7+ Qd3 Rg6 Ke3 Rg7 Qd2 Beg6 Rh1 Rd4 Rf1 Re4+ Kd3 Bh7 Qe3 Bf5 Ncd5 Rd7 Rh1 Kd6 Nc7 Ke5+ Nfd5 Rb8 Rcb2 Rd1+ Kc2 Rb5 Nf4 Rg1 Qd3 Red4 Kd2 Rg2 Rd1 Rg1 Ke3 Bh7 Qdb3 Bb1 Rc2 Re1 Qd3 Bd6 Kd2 Re4 Qe3 Nd4 Kc3 Ne2+ Kd3 Be7+
1k2BnK1/bNRq1rb1/b1Pnq1Pq/R5Q1/1R1B4/4Nr1P/4pnN1/N6N b - - 0 1 illegal: No proof kernel
r1qNbBn1/2b1Bq1P/BN1R4/KP3B1q/1P1rb3/3n3R/3pR1r1/k3B2Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 Kf6 c4 Ke5 b4 a5 f6 d5 c5 g5 h6 g4 h5 a4 f7 d3 Kc3 d4+ Kc4 a3 h7 g3 c6 a2 c7 d2 h6 d3 f3 g2 Rh2 Bb7 c8B Na6 Kb3 Kd4 Ka4 e5 f4 e4 f5 e3 f6 e2 Na3 Kc3 Nf3 g1R Nd4 e1Q Nc4 Qee7 Nb6 Be4 Ne6 Rg2 Ka5 Nc5+ Ba6 Qc8 Nd8 Qec7 Qh5 d1B Bd2+ Kb2 Be1 d2 Bd3 Bd6 f8B Qf7 Be7 Bc7 Qh4 Qh5 f7 Bdf3 Bb1 Nd3 f8B Qf7 Rh3 Bh5 Re3 Bhg6 Re2 Bh5 Bc2 Bhg6 Rc1 Bh5 Qh1 a1Q+ Ba4 Qa3 Rc6 Ka1 Rd6 Qc3 Bb3 Qc5 Be6 Bhg6 Bd7 Qh5 Bh3 Qfe6 Bg4 Be8 Bf5 Qef7 Qh4 Nf6 Qh1 Rhg8 h8R R8g4 Rg8 Rh4 Rg3 Ng8 h7 Bb7 Bg7+ Rd4 Rh3 Be4 Bgf8
Bn3RN1/b1r3Q1/3B1r2/P2BBPqN/K1N2n1k/1nR3n1/1P2bp1b/3Bn3 b - - 0 1 illegal: No proof kernel
NB4N1/R4q1n/r4nPR/N1Pbp1Nn/P2QBb2/1b5k/BKb5/3N1br1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 f4 d5 g4 h5 c4 e5 Kc2 b5 c6 h4 f6 Ke6 f7 d4 c7 b3+ Kb2 d3 g6 d2 g5 Kf5 g7 h3 g6 b4 Nc3 h2 Nge2 Kg4 f5 Be6 c8B Qf6 Bb7 Nd7 Be4 Bd5 Nd4+ Kh4 c5 Ra6 Bc4 Kh3 Nc6 Rh4 a3 Rg4 Na5 Rg1 Ra2 Be7 f8N Qf7 Ne6 Ndf6 Nc7 Nh7 Na8 Ngf6 g8N Bf8 Ra1 Bh6 Ra2 Bf4 Ra1 Rg5 Qg1 d1B Qd4 Rg3 Bd2 Rg1 Be1 Be2 Nd1 Bf1 Bh4 Nh5 Bd8 N5f6 Kb1 b2 Ba2 Bb3 Bc7 Bd5 Kc2 b1B+ Kb2 b3 Bd6 Bc2 Bb8 Nd7 Kc3 b2 f6 b1B Kb2 Qe6 f7 Ndf6 f8N Qf7 Ne6 Bcb3 a4 Bbd3 Rb1 Bdc2 Ka1 Bbc4 Rb7 B4b3 Ra7 Rg2 Rg1 h1N Kb2 Rg5 Rg2 Ng3 Re2 Ngh5 Rd2 Rg1 Rh2+ Kg3 Rh1 Ng7 Rh6 Ngh5 Ng5 Kh4 Nf3+ Kh3 Ng5+
1N1RbnRQ/5bp1/1r4r1/n2bP1PR/k6R/nP1B1N2/2b2b1K/1q1BN2R b - - 0 1 illegal: No possible last move
5B1B/nrBK1pQ1/N1N1P1bR/2q2n2/P1b2P2/1N2n1rN/3k2N1/R3n1bn b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 Kd7 d6 e6 d5 Ra6 Bg2 Ra8 Bf3 Ke8 d7+ Ke7 Bg2 Kd6 Be4 Kc5 d6 Kb5 Bd5 exd5 Na3+ Kc5 Nb1 Kc6 Kd2 Kb5 Kc3 g5 Kd4 Kb4 Ke5 c5 h4 b5 a4 c4 e4 g4 f4 c3 h6 d4 h5 c2 h7 d3 h6 g3 a6 d2 a7 g2 Kf5 Ne7+ Ke5 Nf5 Bb2 c1N Na3 Ne2 Nh3 g1N Nb1 Qg5 d8N Be6 d7 Rg8 h8B Bc4 h7 Neg3 Qg4 d1N Nd2 Bc5 Ba3+ Kc3 Nb3 b4 Nc6 Nde3 d8B Rg6 Rh2 Nh1 Bc7 Qh5 Qg2 Rg3 Kf6 Kd3 e5 Nf3 e6 Ne1 Qb2 Nf1 Ke5 Bg1 Kf6 N1e3 Ke5 Nd4+ Kd6 Qf5 Ke7 Qc5+ Kd8 Ndf5 Qg7 Na6+ Kd7 Rb8 a8N Rb7 Nba5 b3 Bb4 b2 Nb3 Qb6 Bf8 b1B Nf2+ Kc2 Rh6 Qa5 Nh3 Kd1 Nb6 Qc5 Nd5 Ke2 Ndb4 Bc2 Kd8 Nb8 Na6 Nd7 Kc8 Nb6+ Kd8 Nc8 Kd7 Be4 Qf6 Qa5 Bhg7 Qc5 h8N Nfd6 Ng6 Na7 Nh4 Bg6 Ng2 Ndf5 Bh8 Kd3 Qg7 Kc2 Nbd4+ Kd2 Nb3+
bR1kr2R/b1p5/1b1B1r2/n3P1RP/2NB3b/Q2KNP1q/1RR5/1B2r1nb b - - 0 1 illegal: No proof kernel
3qQ1K1/1n6/2R1B1b1/R3BPRn/RP1BN1k1/2n2bPn/2NRr2p/r3br2 b - - 0 1 illegal: No possible last move
K2B1q2/1r4QR/2p1nN1P/n1n1b3/2PNN3/bNRNP3/k2Br1b1/1r2R1n1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Bh3 Be7 fxg5 Nf6 g6 Bf8 g5 Ng8 Bg4 hxg4 Kd2 Ke7 Kc3 Ke6 Kc4 f5 b4 a5 h4 d6 h5 a4 b6 c6 g7 f4 b7 a3 g6 a2 b5 g3 b6 f3 Qd4 g2 Nd2 f2 Ngf3 Nf6 g8N g1N g7 Na6 b8N f1N b7 Be7 Nd7 Nh7 b8B Nf8 Bc7 Ra7 c3 Qe8 Bd8 Rb7 Rb1 a1B Rb3 Rh6 Rh3 Rg6 Rh2 Rg2 Nc5+ Kf7 Qg4 d5+ Kd4 Bb2 Rh1 Ne3 Nf6 Nc4 e3 Nh3 g8R Na5 h6 Re2 Nfe4 Be6 Rd1 Ng1 Re1 Ba1 Qg3 Bh3 Rh8 Bg2 Qg4 Bb2 Qg3 Bf6 Rh7+ Bg7 Qg5 Ba3 c4 Qe7 Nd3 Ke6 Nb4 Bh8 Rc3 Bf6 Kd3 d4 Qg7 Qf7 Bb6 Ke7 e6 Be5 Bd8+ Ke8 e7 Kd7 e8N Ne6 Be7 Qf8 N8f6+ Kc7 Nc5 Kb6 Nce4 Bf4 Bd8+ Bc7 Nd6 Kc5 Ke4 d3 Ke5 Bb8 Nd4 Bc7 Nbd5 Bb8 Nf4 Kb4 Qc7 Qg7 N6e4 Nac5 Kd6 Qf8+ Re7 Bb2 N2b3 d2 Nd3+ Ka3 Nb5+ Ka2 N5d4 d1R Bd2 Qh8 Rf7 Rb1 Rh7 Na4 Kd7 Nac5+ Kc8 Qf8 Qf7 Be5 Qg7 Rc7+ Kb8 Ba3 Ka8 Rf7 Nf5 Rb7 Nfd4
3bN1k1/r5R1/p4nb1/B3N2P/nN6/b2P2B1/1RrqNrPK/QN1Bb2n b - - 0 1 illegal: No proof kernel
1k6/r1pR1B2/1b2Rrr1/1N1n2bB/N3K1Q1/PBPr3B/b1Pq2R1/n1n3B1 b - - 0 1 legal: proof: f4 e5 fxe5 h5 b4 a5 bxa5 Qf6 g3 Qf3 g4 Qc3 dxc3 hxg4 Kf2 Kd8 Ke3 g5 h4 f5 h5 b5 e6 d5 a6 g3 a3 b4 a7 b3 h6 d4+ Kf3 f4 e4 d3 h7 b2 e5 g2 Rh6 g4+ Ke4 d2 Kf5 g3 Ra2 f3 Rh2 f2 Qg4 d1R Be3 Be7 Ke4 Nd7 Ne2 g1B Nd4 g2 Nd2 b1Q Rb2 Qc1 Nc4 Qd2 Nb6 Bg5 Na4 Ne7 Nb5 Rg8 h8R Nd5 R8h7 Rg6 Bd4 Ba6 e7+ Kc8 e8B Bb7 Bc4 f1R e6 Rff6 e7 Bf2 Rg7 g1N Rg2 Ne2 Bf7 Nc1 e8B Ba6 Bb3 Bfe3 Be5 Bb6 Bd4 Kb7 Bg1 Kc8 Nd4 Bc4 Nb5 Kb7 Rb1 Nc5+ Ke5 Rc8 a8B+ Kb8 Bac6 Rd8 Bcd7 Rc8 Qd4 Rd8 Bh3 Rdd6 Qg4 Rc6 Ba2 N5b3 Ke4 Na1 Bb3 Rc5 Nd6 Ra5 Nb5 Ra7 Rh7 Rh6 Bh5 Rhg6 Rd7 Rdf1 Bf7 R1f3 Ba2 Rd3 Rb4 Ne7 Bb3 Be6 Rbd4 Bc4 R4d6 Nd5 Nb2 Bge3 Re6 Bg5 Ba4 Ba2 Bb3 Rf2 Na4 Rf4+ Ke5 Rff6 Ke4
1rR1n1q1/Q4B1q/4N3/Bn3q1R/q2PPPbK/Br3R1b/1p3Rk1/b3R2N b - - 0 1 illegal: No proof kernel
Q1r1r1NR/1N4rb/bn1B2n1/K3P3/BPb1N1qp/R1N5/1b1k1B1P/N4q2 b - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 c5 b3 e5 a3 c4 bxc4 b4 axb4 exd4 Kd2 Ke7 e4 Kf6 f4 d5 c5 h5 c4 a5 c6 g5 c5 d3 Kc3 d4+ Kc4 a4 Kb5 d2 c7 g4 c6 a3 e5+ Kf7 f6 Ke6 f7 Kf5 Qa4 Ke4 f5 Ke3 f6 d3 Ne2 h4 Rg1 a2 Ng3 Bh6 f8B Nd7 f7 Qg5 Ne4 g3 Nbc3 g2 Bd6 Nb6 f8N Ba6+ Ka5 Ne7 c8N Ng6 c7 Qg4 Nd7 Re8 Ne7 Rac8 Ng8 Bf4 Bb2 d1B Ndc5 d2 Nb3 Bc2 Bb5 d1B Qa3 Bh6 Ba4 Bde2 Rgf1 g1Q Rf8 Qf1 Bc1+ Kd3 Be3 Bg5 Bf2 Bc1 Rf5 Bb1 Rh5 Bb2 Rh8 Kc2 Nd5 Bec4 Ndc3 Ra8 c8N Ra7 Bf8 Rg7 Ncd6 Kd3 Nb7 Bc2 Re1 a1R Bd6 Rc1 Na1 Bb1 Ng5 Kd2 Re3 Nf4 Rg3 Bh7 Qa2 Ng6 Rf3 Rc2 Nge4+ Kc1 Nb1 Kd1 Ra3 Ke2 Nbc3+ Kd3 Ng5 Kd2 Nge4+ Kc1 Nb1 Nc8 Rd3 Bcb5 Qd5 Rcc7 Nbc5 Nb6 Ra3 Rcc8 Qa8 Bd3 Nb7 Bdc4 Nc2 Kd1 Na1+ Ke2 Nbc3+ Kd3 Nef6 Kd2 Nfe4+
2q1r2N/6K1/b3RpPB/2N1n3/P1kBq1Q1/BbR5/1Rnr1P2/RR1nn1b1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 h4 Ra7 hxg5 Ra8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb8 Bc4 Ke8 d7+ Ke7 Bb3 Kd6 Bc4 Kc5 d6 Kc6 Bd5+ exd5 Ke2 Kb5 Kf3 c5 Kf4 h5 Ke5 b6 a4+ Kc4 g4 d4 e4 b5 g6 d3 a6 d2 g5 h4 g7 b4 a7 h3 g6 h2 Nc3 b3 Qg4 d1N Bh6 b2 Nf3 b1B Ng5 Nf6 g8R Bc2 Re1 Qc7 d8B h1Q Be7 Na6 Rf1 Rb8 a8R Rb2 Rb8 Nb4 Re1 Qc6 d7 Bb3 d8B Ba6 Bb6 Nc2 Kf5 Bg7 Rgc8 Nd7 Re2 Bd4 e5 Re8 e6 Ne5 Kf6 Qhe4 Kg7 f6 Nf7 Qb7 Rc7 Qc8 Nh8 Be3 Bf8 Bf4 e7 Bh2 Re1 Bg1 Ba7 Nde3 Reb1 Nd1 Rc6 Kd3 Bb6 c4 Bd4 Ra2 Nd5 c3 Nb6 Rb2 Nd7 Ra2 Nc5+ Kc4 Rcb6 Ne1 Rd6 c2 Re6 c1N Rbb6 Nc2 Rb5 Rd8 e8R Ncd3 Rc6 Nde1 Ree6 Re8 Bd6 Na3 Rbb6 Rd2 Rb5 Ba2 R5b2 Nac2 Nd3+ Kd5 Rc3 Bb3 Bb4 Rf8 Nc5 Re8 Rf3 Kc4 Ba3 Qea8 Rg3 Qe4 Rc3+
1b3bN1/2nQN1qk/1B2Pr2/1bRnB1n1/P1PB4/pB4K1/1B4NR/q4rb1 b - - 0 1 illegal: No proof kernel
B3b3/1q6/PbP2k1r/RNn5/b3NnBr/1p2QKN1/B3nPB1/3bBq1R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 g4 h5 c4 d5 a4 e5 g6+ Kf6 c6 b5 g7 e4 c7 h4 c5 e3 c6 h3 a5 b3 a6 d4 Na3 b4 Ra2 b2 Nb5 b1B Ra5 d3+ Kf3 h2 Nc3 e2 Qb3 e1Q Bg2 d2 Nge2 d1B Nb5 Nd7 Qe3 Bc5 Bd2 Qf1 Be1 Ne7 g8B Rh6 Be6 Ng6 Ba2 Ba4 Ng3 Bb6 Be6 Bbc2 g5+ Kg7 Ba2 Nf4 g6 Kf6 g7 b3 g8B Nc5 Be6 Bd7 c8B Qe7 Bb7 Rah8 Ba8 Be8 Bc8 Qb7 Be6 Kg5 f6 Kg6 f7 Kf6 f8N Bd1+ Qe2 Rh4 Bg4 R8h7 Ne6 R7h6 Rg1 h1N Ng5 Bc2 Qe3 Bd1+ Ne2 Ng3 Rh1 Nge4 Nc7 Nc3 Nb5 Bc2 Ng3 Nce2 Nf7 Bd1 Ng5 Kg6 N5e4 Kf7 Ned6+ Kf6 Nde4+
1nBN1R1b/KN1R2r1/Pp1P2Pn/2N1knB1/qr6/3r4/2nN1Q1N/3bq2R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 e5 Kc4 h5 Kb5 c5 g4 e4 a4 c4 f4 b3 d4 e3 f6 b6 g6+ Ke8 f7+ Ke7 d6+ Ke6 g7 b2 a5 h4 f5+ Kd5 d7 h3 g5 h2 f6 c3 g6 c2 Nd2 b1N Ngf3 e2 Qe1 Rh6 Qf2 e1Q Bh3 Ba3 f8N Qde8 f7 Bb2 Ne6 Rh7 f8R Nh6 g8N Rg7 Nc5 Q8e4 d8N Bg4 Ndb7 Na3+ Kb4 Bh5 Bc8 Qf4 Rb1 Ba1 Rb3 Bb2 Rd3 Ra6 Ng5 Bd1 Nge6 Ra8 Ned8 Ra7 Rg1 h1N a6 Ng3 Rh1 Ngf5 Ka4 Nf7 Nh6 Bc3 Ng4 N7h6 Nh2 Qg4 Nd6 Rad7 N6b7 Qh4 Re3 Bb2 Re7 Rd6 Rd7 Ba1 Bb2 c1R+ Kb4 Rc3 Bc1 Nc2+ Kb5 Re3 Nde4 Rd3 Bg5 Bb2 Nd2 Rh7 Na5 Rf7 Rc7 Rdd7 Rb7 Kd6 d5 Rfe7 Rc7 Re4 Ra7 Bh8 Rc7 Rg7 Rd7+ Ke5 d6 Ng8 Ra7 Nd7 Kc6 Ngh6 Kb7 Nb8+ Ka8 Ra4 Rd7 Qc4 Ka7 Qa2 Rb7 Rb4 Rd7 Qa4 Nab7
1NR2nQ1/4b1r1/pNBN1N1q/K1P2P1q/6N1/Bbnn1R2/kn2P1r1/1q4B1 b - - 0 1 illegal: No proof kernel
k1q5/3nPqPr/2rRNRbq/n1bN3Q/7N/1B1pRb2/2PR1BR1/1b3K2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 e4 d5 g4 Kd7 b4 Kc7 b6+ Kb7 e6 h5 e5 f5 e7 a5 e8N f4 e6 h4 g6 d3 g5 d4 b5 d2+ Ke2 a4 g7 h3 g6 h2 Nf3 a3 Nc7 a2 Nh4 Rh7 Nc3 Nc6 N3d5 Nf6 g8R Bc5 e7 Bf5 Ne6 Rc8 g7 Qd7 Rd8 Bg6 Rg1 h1Q Rg2 f3+ Kf2 Rc7 Bc4 Qc8 Bb3 Na5 Rd6 Rc6 Ba3 Qh3 Kf1 f2 Qh5 Ka8 Re1 d1B Re3 a1Q Bc1 Nd7 b7+ Ka7 b8R Qa2 Rb7+ Ka8 b6 Bf3 Bd2 Qh2 Be1 Qf4 Re5 Qf7 Rf5 Qa1 Rf6 Qc1 Rc7 Nb8 Rcd7 Qh6 Rd8 Nd7 b7+ Kb8 Rh8 Ka7 b8R d3 Rb4 Ka8 Nc3 Bd5 Re4 Bc4 Re3 Bd5 Ba4 Ba2 Nd5 Bb1 Bb3 Rb6 Re2 Ra6 Rd2 Rc6 Rg3 Be4 Re3 Bg6 Kg2 f1B+ Kg1 Ne5 Bf2 Be2 Rf8 Bf3 Kf1 Bf5 Rg6 Nd7 Rg4 Bg6 Rg2 Qfe8 Rf4 Qf7 Rf6
8/RN2p1K1/3b2RN/3R1PRq/1BP2Pqq/R1r1rb2/B3nq2/1kN2Qnr b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 a5 b4 g5+ Kg4 Ke5 f4+ Ke4 h4 d3 b6 d2 b7 a4 b5 d4 b6 a3 h6 d3 Kh5 g4 Kg6 g3 h5 g2 h7 a2 h6 Nc6 b8R Bg7 b7 Nf6 Ba3 Nd4 Rh3 Nh5 Ne2 Ng3 Nc1 g1Q Bb4 Be5 Na3 Qf2 Nb5 Bd6 Kg7 Nge2 c4 Ng1 Be2 Bd7 Qf1 Ra3 Bd1 Nde2 Bb3 d1Q Rh5 d2 Ra8 Qb8 Rg5 Bc6 Ra7 Ke3 Rg6 Bf3 Rg5 Qe8 b8R Qde1 Rb6 Qh5 Rc6 Rd8 h8R d1Q h7 Qfh4 Re8 Qef2 h8N Ra8 Rd8 Ke4 Ba4 Rc3 Bb3 Ke3 Rca6 Kd2 Nf7 Q5g4 Nh6 Qgh5 Rb1 a1R Rdd7 Ra3 Ra1 Rh8 Rc6 Ra6 Ra3 Ra4 Ba2 Kc2 Bb3+ Kb1 Rca6 Bc5 Rd5 Bd6 Nd4 Re3 Ne6 Ra5 Nc5 Ra4 Ra2 Ra3 Nb7 Q5g4 Ba4 Rac3 Bb3 Qfe1 R2a3 Qhf2 Nf7 Rh1 Nh6 Qfh4 Rc6 Qef2 Rca6 Qde1 Rb6 Qhh5 Rc6 Qfh4 Rb6 Qef2 Rba6 Bb8 Rag6 Bd6 Ba2+
NQ1bqkb1/2BPP1N1/1p2qqB1/1K3Pr1/8/4n3/1N2Nr1R/NRbn1Rq1 b - - 0 1 illegal: No possible last move, all moves rejected
Q3Nq1q/2PN2r1/b1R1p1kN/1R1P1rq1/1n2B3/2b1Pb1K/1BB1n2b/6BB b - - 0 1 illegal: No proof kernel
B1qN2bN/P2r4/1q1nNPnN/2b1bRpK/1N4R1/B1q4P/2k3rR/b4Q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 f4 Kd4 a4 e5 h6 g5 h7 b5 h3 c5 d3 e4 a5 c4 a6 b3 d6 b2 d7 c3 f6 c2 f5 b4 f7 b3 f6 e3 Qf3 e2 Bf4 e1B Nc3 c1B Ra5 b1Q Bg2 b2 Nd5 Nh6+ Kh5 Qa1 Qf1 b1Q Rh2 Nf5 Bd6 Bb2 Nb4 Kc3 d4 Nc6 d5 Bg3 Nf3 Nce7 Ne5 Ng6 Ng4 Be5 Nh6 Qb6 d8N Be6 Bc5 Qc2 d6 Bd5 d7 Nd6 Bh1 Rg8 h8N Rg7 Ra4 Be7 f8N Bg8 Ra5 Qe1 Bb7 Ba1 Nfe6 Kb2 Bc6 Qc3 a7 Rc8 Ba8 Bf8 Ndc6 Rh7 d8R Rd7 Re8 Kb3 Ncd8 Qc1 Bd4 Rc4 Bc5 Rg4 Nc2 Rg1 Ba3 Rg2 Nb4 Qc8 Rc5 Qc3 Rc4 Nf7 Rg4 Bc5 Ng7 Nd6 Re6 Bf4 Re5 Bg3 Rf5 Be5 Nd3 Kc2 Nge6 Re7 Re4 Rc7 Rg4 Rd7 Nb4+
brr1bRB1/BN1b4/R7/Q6R/6rR/2Bq3P/1Prk1Ppn/K1Nn1Rb1 b - - 0 1 illegal: No possible last move, all moves rejected
2r1B3/bBnK2bk/Nq4R1/1B1R1rb1/4rrP1/1p2QBPn/PNbB4/3N4 b - - 0 1 legal: proof: e4 c5 b4 g5 d4 a5 bxa5 f5 dxc5 fxe4 h3 g4 hxg4 Ra7 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kd5 b5 c4 e5 f4 e3 f5 b4 a6 b3 f6+ Kh7 a7 e4 f7 e2 c6 e1B g3 h4 c5 h3 c7 e3 c6 h2 Qf3 e2 Nh3 Ne7+ Kd6 Bd2 Rg1 h1R Na3 e1B Nc4 Bg7 Nf2 Re8 Nd1 Rh5 Qe3 Rf5 Ncb2 Nd5 Bb5 Nf4 Rh1+ Nh3 Rb1 Ba6 c8B Re4 c7 Bf2 Bb7 Rff4 c8B Qb6+ B7c6 Bb7 Rh2 Na6 Ra1 Rb8 a8B Nc7 Rh1 Ba6 Bcb7 Rc8 Rb1 Rf5 Rf1 Ref4 Ke7 d5 Be8 d4 Kd7 d3 f8N+ Kh6 Ne6 Kh7 Bf3 Bb7 Nc5 Be4 Bb7 Bg1 Qe2 Bde3 Re1 d2 Na6 Bc2 Qd3 Re4 Qc3 Beh6 Re3 Ref4 Re6 Bg5 Rg6 B1d4 Qe3 Re4 Nc3 d1R Bd2 Rf1 Ncd1 Bc5 Bfe2 R1f4 Bf3 Qa5 Rc1 Ba7 Ra1 Qb6 Rc1 Bd3 Rc5 Bc2 Rd5
N1R3n1/2Bn3k/1P6/4brQK/B1P5/2b1B1rP/2rpNNbR/qr1Bb2B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kf3 d5 c4 f5 e4 Kf7 b4 g5 h3 Kg7 h6+ Kh7 e6 a4 e5 a3 e7 a2 e8B f4 b6 d3 b7 d2 e6 d4 Kg4 f3 b5 f2 b6 d3 Bh5 Qc7 Rh2 Nd7 b8N Bb7 e7 Qe5 e8B Bg2 Ne2 Bb4 Na6 Bc3 Nc7 Ra7 Qa4 d1R Be3 d2 Qb5 Ra5 Na8 Rc1 Qd5 Rc2 Qc5 Qg7 Qd5 Be5 Nbc3 Qf6 Re1 a1B Ne4 Bac3 Ra1 Rb5 Ra5 Rb3 Rc5 Rb1 Rc8 Qg7 Bhf7 Qf6 Kh5 g4 Qc5 g3 Bd5 Qc6 Qa5 Qa4 Bb7 Qa1 Qd5 Nb8 Ba4 Nd7 Qc5 Bh1 Bg2 f1R Bf3 g2 Nf2 g1B Bbc6 Bg2 Bg4 Bc7 Qg5 B7e5 Bd5 Ne7 Bdf3 Rg8 Bd5 Rg7 Bdf3 Ng8 Bfc6 Kh8 h7 Rg6 Bb7 Kg7 h8B+ Kh7 Bf6 Rg7 Bd8 Rg6 Ne4 Bf2 Bc7 Be1 Bd5 Rf3 Nf2 Rg3 Bb7 Rf6 Bbc6 Rf5 Bgf3 Rcc1 Bd1 Rc2 Ba4 Bf1 Bh1 Bg2 Bc5 Qa2 Bd4 Qa1 Be3
r1n2q2/1bBRPn1P/1b2b1R1/r1PB2b1/3KR2N/2N3pN/3k2QR/4rR1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 b4 Ke6 h4 Kd5 c4+ Ke4 e3 f5 e6 a5 e7 g5 e8R+ Ne7 b6 d5 h6 g4 b5 f4 h7 d3 b7 f3 h5 a4 h6 a3 b6 d2 Qe2 d1B Rh2 a2 Bg2 d4 Nh3 Nc6 b8R d3 Rb7 d2 Rd7 Ra5 b7 Bb3 b8R d1R Rb6 Ne5 Rg6 Re1 c5 Be6 Bb2 Nf7 Be5 Bb7 Bc7 Nc8 Bh1 Rg8 h8N Be7 h7 Bg5 Ree7 Qf8 Nc3+ Kf5 Rad1 a1B Qf1 Bb2 Qg2 Ba3 Re8 Bb4 Rb1 Ra8 Rc1 Ba5 Rcd1 Bb6 Ra1 Nfd6 e4+ Ke5 Ree7 Kd4 e5 Kd3 Rc1 Ra5 Rb1 Bed5 e6 Nf7 Ra1 Kd2 Re8 Re3 Rf1 Re1 e7 Kc1 Red8 Be6 Rd4 Kc2 R8d7 Kc1 Re4 Kc2 Rg7 Kc1 Ng6 Rh8 Kg3 f2 Nh4 Kc2 Rg6 Kc1 Qf3 Rg8 Kg2 g3 Qe2 Rh8 Kf3 Rg8 Nf4 Rh8 Ke3 Rg8 Kd4 Rh8 Rg1 f1R Nh3 Rg8 Rg4 Rh8 Bd5 Rg8 Re4 Rh8 Rgg2 Rh1 Rg1 Rg8 Qg2 Rh8 Nf2 Kd2 Rf1 Qh6 Rg7 Ncd6 Nb5 Rha8 Rg6 Qf8 Nc3 Nc8 Nh3+
5b1B/K1PR1bB1/2R1r1qP/2r1pnkb/1Bn3B1/2b1PNNr/1B6/Q2Nr3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 c5 a4 Rh7 axb5 Rh8 d4 cxd4 Kf2 f5 h4 Kf7 c4 a5 b4 d5 b6 e6 c5 a4 b7 a3 c6 a2 g6+ Kf6 b5 f4 g7 d3 b6 f3 Ke3 d2 Kd4 f2 e3 Ba3 h6 Bd6 h7 Bd7 h5 Bc8 Bb2 Ra5 Be2 f1R Nc3 Rc5 Bg4 Qe8 Nf3 Ne7 Rc1 Nd7 b8B a1B b7 Nb6 h6 Re1 Ba7 Nc4 b8B Qg6 c7 Rd8 h8B Re8 Bb6 Ba6 B8a7 Bb7 Qa4 d1B Ba5 Be2 Nd1 Nf5+ Kc3 d4+ Kb4 Bd5 g8N+ Kf7 Rc3 d3 Nf6 d2 Nh5 Bf8 Ng3 Ke7 Rh5 Rh1 Rc1 Rh3 Bbg7 Bf6 Qa1 Bc3+ Ka4 Kf7 Bb4 e5 Rh4 Re6 Bb6 Rcc6 Kb5 Rc5+ Ka6 Ke7 Ka7 Kf7 Nb2 d1R Rc2 Re1 Nd1 Qh7 B6a5 Kg6 Ba3 Qg8 B5b4 Qf7 Bb2 Qf6 Ng1 Kg5 Rc1 Qg6 Rc2 Rf6 Rd2 Bf7 Rd7 Rh1 Rh2 Re6 Rf2 Bf3 Rfd2 Be2 R2d6 Rh3 Rc6 Nfd6 Bf5 Bh5 Bg4 Nf5 Nf3+
1r2B2R/BP4nP/k1QB1q2/bn2Rbr1/1n2NPp1/2B4N/1B2b3/2Rn1bK1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 Kd7 Kf2 Kc7 c4 Kb6 f6 g5 h6 e5 f7 a4 h7 g4 h5 a3 h6 e4 Bb2 a2 Rh2 d3 Qc1 d2 Ne2 d1B Kg1 e3 Nbc3 d4 Ng3 d3 Nge2 d2 Rh3 Nc6 Rh5 Nge7 Re5 Rg8 h8B Rg5 h7 Bf5 Ne4 Rb8 c5+ Ka7 b6+ Ka6 b7 Nd4 c6 Nb5 Rb1 a1N c7 Nc2 c8R Bg7 f8B Qd6 N2c3 e2 Nf2 e1N Nh3 Ng2 Ne4 Qf6 Bc4 Nge3 Bf7 Bf3 Be8 d1B Bc3 Bg2 Bb2 Nc6 Bd6 N2d4 Qc2 Bf8 Rc1 Be2 Bg7 Nd1 Bc3 Ra8 b8B Bgf1 Ba7 Ne6 Bb2 Be7 Qc4 Bd8 Qd5 Ncd4 Qc6+ Bb6 Bh8 Ng7 Bc3 Rb8 Rd8 Nc7 Bb2 Nd5 b5+ Ka5 Bc3+ Nb4 Rc8 Bc7 b6+ Ka6 b7+ Bb6 Bb2 Nb5+ Rec5 Qh6 Bd7 Ne8 Bhc3 Ng7 Rh8 Qe6 Be8 Qf6 Qc7 Ba5 Re5 Nf2 Qc8 Nd1 Qc6+
n2N3n/1NR2p2/Q3BBPN/4r3/nn5P/R2q1b1k/R1n1nP2/Nn3KbN b - - 0 1 illegal: No proof kernel
n1bB1r2/1B3q1B/4kb1P/2N1n3/2R1K1nR/4b1pN/2QBPBPn/2q2Rq1 b - - 0 1 illegal: No proof kernel forced: bxLB
3R4/1r1RPbqR/2R2p2/n3N2b/b1n2PPB/N3Q3/n3Rq1N/K1kB2bq b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 d4 g5 dxe5 Nh6 a4 Ba6 h4 gxh4 b6 Bc8 b7 Ra6 b5 Rc6 b6 Rc5 Nh3 Rb5 axb5 a4 Ng1 Ng8 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 f4 Ke4 e6 d5 e7 h5 e8N c5 e3 a3+ Ka2 h3 g3 h2 Nc7 d4 Qb3 h4 Nh3 c4 Qb2 c3 Ne8 d3 Qe2 d2 Bb2 d1B Ng1 c2 Bf6 h3 Nf3 Nc6 b8R Qd4 b7 Na5 b6 Nc4 Bh4 Bd7 Ne5 Ne7 Rc8 Rh7 b8R Ba4 Rb7 Nc6 Rd7 N6a5 b7 Bc5 b8R Rg7 Qd2 Bh5 Be2 Bb6 Re1 h1B Rc6 h2 Rbd8 Bg2 Qc1 h1Q Bd1 Bh3 Re2 Be6 g4 f6 Nc7 Bef7 Ne6 Qc5 Nd4 Qf8 Nef3 Kd3 e4 Rh7 e5 Qg7 e6 Qh2 Nbd2 Qf2 Nh2 Ba7 Nb5+ Bd4 Qb2 c1N+ Kb1 Na2 Qc1 Rh8 e7 Rf8 Ra8 Rb8 Ndf3 Rb7 Rad8 Nd6 Qc5 Ndc4 Qe5 Nb4 Kc1 a2 Na3 Kc3 Rb1 a1Q Qe6 Qf1 Qe4 Bg1 Ne5 Qa2 Rbb2 Qf3 Rbd2 Qh1 R2d5 Qd2+ Kb1 Na2+ Ka1 Qd4 Rh8 Qe3 Rdd8 Qf2 R5d7 Bd5 Re3+ Kd2 Re2+ Kc1 Rh7 Bdf7 Qe3+
q1q1q1R1/R1p1B2K/2P5/1BPbq2B/Q1PnBb1N/BNrkN3/7b/3n1b2 b - - 0 1 illegal: No proof kernel
1r4R1/1Rr1r1b1/1kPPR3/1N2n1nN/2b2P2/1p1pn1K1/1R1Qb3/2qBB1BR b - - 0 1 illegal: No proof kernel
r1B1R1K1/QB1r1P2/5b1p/2n2P2/2B2R1n/Bbr3N1/1p1Pb1nB/kq2N2R b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 f4 e6 g4 h6 a4 b3 a5 b2 g6 b4 f6 b3 g7 Ba6 f5 Ne7 g8B Nd7 g5 Rh7 g6 Bg7 Bc4 Nc5 Nf3 Qb8 Nc3 b1B Qg1 Bc2 Ne1 c6 Ba3 e5+ Ke3 e4 Kd4 e3 Be6 e2 Bc8 Bh8 g7 Ng6 g8R Rd7 Re8 Nh4 Rc1 Bb5 a6 Qb7 a7 b2 Rh2 Bb3 Rf2 Bg7 Rf4 Qc7 Nd3 e1N Ne2 Neg2 Ng3 Qa5 Ne1 Ba6 Bb4 Qa1 Ba3 Qb1 Rd1 Bf8 f7 Be7 Bf1 Be2 Rc1 Kc7 Ke5 Kb6 d6 Kb5 Rd1 Bf8 Kf6 Be7+ Kg7 Bf6+ Kg8 Ka5 Bb4+ Ka4 Qd4 Be6 Rc1 Kb3 Ba3 Ka2 Qg1 Ka1 Rd1 Rc7 d7 Bb3 d8B Rd7 Be7 Na4 Qb6 c5 Bd6 c4 Qg1 c3 Qe3 Ba6 Bc4 c2 Qd4 c1R Bc7 Rb8 a8B Rc3 Bab7 Ra8 Qa7 Bb5 Nf3 Ba6 Rh1 Nc5 Ne1 Bb5 Be5 Ba6 Bd4 Bb5 Bg1 Ba6 Bh2 Bb5 Be6 Be2 Bc4
n3rR2/2P3nK/B3Q3/Pbq4B/B1Pp1br1/2R2bRp/6BB/1k1N1nNr b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kd2 Ke7 Ke3 Ke6 Ke4 b5 a4 d5+ Kf4 f5 e4 h5 g4 h4 c6 d4 c7 h3 a5 b3 g6 b4 g5 b2 g7 b3 g6 Ne7 Kg5 f4 g8R f3 g7 f2 Qe2 Nf5+ Kg6 Bd6 Rf8 Ba6 Bg2 f1N Nc3 b1R Nd1 b2 Bf4 Bb5 Ra3 Qe7 Bh2 Nd7 Rc3 Rg8 Kh7 Nb6 Rg3 Re8 c4 Kd7 e6+ Kc6 e5+ Kc5 Qe1 Qg5 e7 Na8 e6 Bf4 Bb7 Ra1 Ba6 b1B Qe2 Kb4 Rc3 Rd8 e8B Be4 e7 Bf3 Bh5 Re8 Qe6 Rc1 Ne2 Rb1 Rg1 Ra1 Rg3 Ka4 Rc1 Ka3 Ng1 Ka2 Rc2+ Kb1 Rc3 Rb8 e8B Qe7 Bd7 Qc5 Rf6 Rge8 g8B Ng7 Rf8 Rbd8 Bc6 Rd5 Bgf7 Rg5 Bcb7 Rg4 Bfg6+ Ka2 Bc2 Rc1 Ba4 Kb1 Nf2 Re1 Nd1 Nd2 Ne2 Rh1 Ng1 Nf1 Bc6 Be2 Bg2 Bf3 Rf7 Bc1 Rf5 Bf4 Rf8
1Q2R3/k1pBPPKB/1p2r1N1/b5R1/1q1r1n1r/NP2b3/4Bn1n/BBR3b1 b - - 0 1 illegal: No proof kernel
2NKB2q/3B2NR/n1R1r2n/2bbB3/N3q2P/5p2/Pb1N1PNp/n1r3Qk b - - 0 1 illegal: No possible last move, all moves rejected
Rnr5/1R4K1/1N3RP1/qr2P2P/pN1pB3/2b2n1k/5nRB/QNqbR2r b - - 0 1 illegal: No proof kernel
4qN2/1q2b2N/kRnP1Rpb/B1B2QP1/K2p1R1n/2bPR3/1r4r1/1R3nN1 b - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 f5 exf5 d4 c4 Nc6 g5 Bb7 Be2 Nb8 Bg4 Bd5 cxd5 hxg4 b4 Kd7 h4 Kc8 f4 Kb7 f6 a5 f7 c5 d3 e5 Kd2 a4 Kc2 c4 f5 g3 d6 a3 b6 g2 b5 g6 f6 c3 Kb3 e4 h5 c2 h6 a2 h7 e3 Qf3+ Nc6 Bd2 c1B Nc3 e2 Qf5 e1B Rh3 Rb8 Rb1 a1Q Re3 Qa7 Ne4 Be7 f8N Nh6 f7 Ng4 Nf6 Qe8 Ba5 Nh2 Ka4 Bb2 Qd5 Nf1 Qf5 Rg8 h8R Bbc3 Rhh3 Bg3 N6h7 Rh8 Rh4 Be5 Rf4 Bg7 Qc8+ Ka8 Qf5 Qa6 b7+ Ka7 Rh4 Bh6 Rf4 Rc8 b8R Qb7 b6+ Ka6 Nd7 Rg8 f8R Rg7 Rf6 Rc7 Ne2 g1N Ndf8 Nf3 Ng1 Nh4 Rc8 Qa8 b7 Rf7 b8B Rb7 Rd8 Rb2 Ba7 Qc8 Bc5 Qb7 Rb8 Rg2 Rfe6 Rf6 Qe4 Rf5 Rf6 Re5 Qf5 Rd5 Bcb4 Rb5 Ba3 Rbb2 Bc5 Qbd7 Rb3 Qb7 Rb6+
1r1N1N1n/4n1Q1/qbBPP2B/4Nn1p/2R2qNr/rk1p2R1/b6P/1N1K1B2 b - - 0 1 legal: proof: f4 e5 a4 d5 d4 b5 axb5 g5 fxg5 exd4 c4 Bg7 cxd5 Bf8 e4 Ke7 b4 Kd6 g4 f5 g6 c5 g7 a5 b6 f4 g5 d3 b5 c4 g6 Kc5 e5 Kb4 b7 a4 b6 c3 Bd2 f3 Be3 a3 Bh6 Ne7 g8N a2 g7 c2 Nf6 c1Q g8B Nd7 b8N Qf4 b7 Qa5 Ng4 Qa6 Nc6+ Kc4 Qc1+ Kb3 b8N f2+ Kd1 Bg7 Nf3 Nf8 d6+ Be6 Rg1 Nfg6 Nd7 Rb8 Nf8 Bd5 e6 Bd4 Bf7 Bb6 Be8 Bc4 Be2 f1N Nfe5 Ng3 Nd8 Ngf5 Rg3 Bd5 Qc7 Bc4 Na3 Bd5 Rc1 a1R Nb1 Ra3 Bg7 h6 Bf1 Rh7 Bc6 Nh8 Nf2 h5 Bh6 Rg7 Rc4 Rg4 Qa7 Rh4 Nfg4 Kb2 Rc5 Ba2 Rc4 Kb3 Qc7 Nd5 Qf7 Nde7 Qg7
2N2kB1/1B6/bNp2R2/Rq3PP1/pB1rRn2/n2q1PK1/RbQq1r2/3R2n1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 Na6 axb5 Nb8 c4 dxc4 b4 a5 d4 e5 g4 h5 g6 c3 d5 e4 d6 e3 g5 a4 b6 c2 d7+ Ke7 g7 c6 b5 e2 b7 h4 f3 h3 Kf2 e1N b6 h2 Nc3 Ra5 Ba6 Nf6 g8B Rd5 Nb5 Nd3+ Kg3 Nf2 Nh3 Bg7 Na7 Kf8 Nf4 Rd4 Nd5 Nh3 Bd2 c1Q Ra2 Ng1 Bb4+ Qc5 Qc2 Nh5+ Kg2 Nf4+ Kg3 Ngh3 Rd1 h1Q Qg2 Qf1 Qc2 Qe8 d8R Ng1 Rd6 Nd7 b8R Ne5 b7 Qd8 Ra8 Nc4 b8R Qb5 Bb7 Na3 Nb6 Rh2 Bd5 Rf2 Bg8 Be6 Nac8 Bc4 Ra5 Qd3 Rba8 Qe8 Rg6+ Qc5 Bh7 Qee3 Bg8 Rd8 Na7 Bb2 Re6 Bb5 Re4 Ba6 Rc8 Qe1 Rc7 Qee3 Nac8 Rd4 Rd7 Qed2 Rd6 Qcb5 Rf6+
1K3Qnq/4R3/P1rNB1p1/RNb5/RRpBB2n/q1b2r2/1kP1Rn1P/2r5 b - - 0 1 illegal: No possible last move
n2NkBb1/2b1Br2/P2p1PQ1/P1RKp2q/1B1B2q1/2r5/3qBb1N/1N1R1n2 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Ke2 g5 Kd3 b5 Ke4 d3 h4 e6 c4 d6 a4 d2 f4 b4 c5 b3 a6 b2 c6 g4 h6 g3 f6 g2 c7 Ra7 f7+ Ke7 a5 Nd7 f5 Rh7 h5 Nb6 Be2 Na8 Nf3 g1B Qc2 d1Q Bd2 Qd7 Bb4 Qd2 Nh2 Bf2 Rd1 Bg7 f8B+ Ke8 Ra3 Bf6 Rc3 Ne7 Rc5 Rf7 h7 Nd5 h8B Bd8 h6 Ne3 h7 Nf1 Bd4 e5 h8B Rb7 f6 Qg4+ Kd5 Rb5 Be7 Be6+ Kc6 Qh5 c8N Bc7 Qg6 Rb8 Na7 Rc8 Bg7 Bb3 Na3 b1Q Bgf8 Qbf5 Nb1 Qfh3 Qf5 Q3g4 Qg6 Bc2 Kd5 Bd3 Qg8 Bh7 Qg6 Bg8 Nc6 Rb8 Ba3 Rb3 Bb4 Rc3 Nd8
1bQn4/4N1kP/rB1R1BB1/1RPK1b2/2B1P3/2p1q2N/b3B1pq/1n3rqR b - - 0 1 illegal: No proof kernel
4qbN1/RB4NP/N3P3/1n2K1P1/qR2pp1B/1bn1B2k/N7/1Qr1Nrqn b - - 0 1 illegal: No proof kernel
2Q2r2/2b2N1p/3Rk1N1/P1nRrnb1/bKN1RB1N/4BNrP/q2p1P2/6q1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 g4 Ke8 gxf5 Ra6 Nf3 Ra7 Ng1 Ra8 d4 e6 d6 Be7 d7+ Kf7 d5 Ra6 d6 Ra8 Bg2 Bf8 Bd5 exd5 Kd2 c5 Kc3 g5 a4 b5 e4 g4 a6 g3 a7 g2 a5 c4 h3 d4+ Kb4 d3 e5 c3 f6 c2 e6+ Kg6 f7 Kf5 e7 Bh6 e8R Bf4 f8N Qg5 d8B Nh6 d7 Bc7 Nf3 g1R Re4 Rg3 Bf4 c1B Ng6 Re8 Qc2 Re5 Nbd2 Ke6 Rd1 Nf5 Nfh4 Qg4 Ndf3 Na6+ Kb3 b4 Bdg5 Rb8 a8N Nc5+ Kc4 b3 Nb6 b2 Kb4 Bb7 Nc4 Rf8 Rd2 Bc6 d8N+ Kd7 Bh6 Ba4 Nf7 Ke6 Be3 Qg5 Ra2 Qg4 Bhf4 b1Q+ Rb2 Qa2 Rd1 Rg1 Qc3 Qg2 Rbd2 Qh1 Qd4 Rg3 Qd8 Qg2 Qc8+ Kf6 Rd4 Qg1 Rd7 Ke6 Re1 Bc2 Ree2 Ba4 Bd4 Qf1 Bh6 Bd6 Re4 Qg1 Rd1 Bf4 Be3 Bc7 Rd2 Bg5 Rd1 Bf6 Bhf4 Be7 Rc1 Bf6 Rc3 d2 Rcd3 Be7 R3d5 Bg5 R7d6+
1k3Brb/6PQ/p1R2KbR/3RR2R/1n5B/1b6/Prqp3P/NqN1B1nn b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 f4 Bf8 g4 h5 Bh3 Ba3 fxg5 Bb7 g6 Bc8 g5 Bf8 Bg4 hxg4 Kd2 d5 Ke3 Kd7 Kd4 f5 b4 g3 e4 a6 g7 c6 b6 f4 b7 Kc7 g6 f3 b5 f2 b6+ Kd7 e6+ Kd6 e7 f1B e8R g2 e5+ Kd7 e6+ Kd6 e7 Ra7 Bd2 Be6 Ne2 g1N Be1 Qc8 Na3 Nh6 g8R Ng4 Rc1 Nf2 Qd3 Bg2 Nc2 Be4 Rg7 Rg8 Na1 Bf7 Rh7 c5+ Kc3 c4 Kd4 c3 Rh6 Kc6 Ke5 c2 Kf6 d4 Rd1 Qc7 Nc1 Bb3 Rd8 Qc8 e8R Bd6 Qh3 d3 Re5 d2 Reh5 Bc7 Rdd5 Bf5 Qd3 Bd6 Qh3 Kd7 Qh4 Nc6 b8B Nb4 b7 Ra8 Ba7 Kc7 Bc5 Kb8 Qh3 Bg3 Bf8 Bd3 Qd7 Qc7 Qh7 Be5+ Ke6 Bh8 g7 Bg6 Kf6 Nf3 Rg1 Nh1 Rgg5 Ng1 Rge5 Qc3 Bh4 Qb2 Re1 Qb1 R1e3 Ra7 Rc3 Ra8 Rc6 Ra7 Nd3 c1Q Be1 Qcc2 Nc1 Ra8 Bh4 Ka7 b8B+ Kb7 Bbd6 Rb8 Bde7 Ka7 Bd8 Rb7 Bg3 Kb8 Be1 Bc4 Bfe7 Nd3 Bf8 Rb2 Ke6 Bb3 Bdh4 Nb4 Kf6
1N5K/1B3pnQ/1r2P3/N1bBn2R/1k2P2B/R1pNqq1P/n2N2r1/q4N1b b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Ke7 Kf3 c5 Kf4 b5 Kg5 c4 a4 c3 e4 g6 d4 b3 h6 b2 a5 b4 h7 b3 e6 Ra7 a6 Nc6 Ra3 Rb7 a7 Rb8 a8B Ba6 Bc4 Nf6 Ne2 Kd6 Nd2 b1Q Ng3 b2 Bb7 Qd3 Qh5 b1Q Ngf1 Rg8 h8N Nb4 Qh7 Qa1 Ba2 Be7 Kh6 g5 Ng6 g4 Ne5 Qf3 Nd3 g3 Bb3 g2 Bc4 Rh8 Kg7 g1N Ba2 Re8 Bc4 Bf8+ Kh8 Nh5 Bb3 Ng7 Ba2 Kc7 d6+ Kb6 d7 Kb5 d5 Qb6 d8N Qbe3 Nc6 Rec8 Bb3 Na2 d6 Re8 d7 Bc5+ Qg8 Rec8 Na5 Rc6 d8N Rb6 Qh7 Rc8 Nf2 Kb4 B3d5 Ra8 Bb2 Be2 Bc1 Ra7 Ndc6+ Kb5 Nb8 Kb4 Bbc6 Rd7 Bb7 Rdd6 Bb3 Rd5 Bc4 Rg5 Bcd5 Rg2 Qh6 Qff4 Qh7 Nf3 Nd3+ Kb5 Nb1 Ne5 Bd2 Bg4 Be1 Qff3 Nbd2 Bh3 Nc1 Kb4 Bf2 Rg4 Bh4 Bg2 Nd3+ Kb5 Rg1 Bh1 h3 Rg6 Rg4 Rg5 Rf4 Rg3 Rf5 Rg2 Nb2 Kb4 Rg5 Nc6 Rh5 Ne5 Nd3+
qBrRK2N/2BnPNB1/3P1B2/R2N3B/1Q1r2q1/b1np3b/Ppr5/4kq2 b - - 0 1 illegal: No proof kernel
2bR2KQ/RRrPR2P/1Bqb2R1/qbp1n1N1/4Np2/8/4Pr1B/3B1nnk b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 h4 g5 d4 f6 b4 g4 b6 c6 b5 a4 h6 f3 h5 a3 h7 g3 b7 g2 h6 a2 b6 f2 Nh3 g1N Bg2 f1B Ng5 Ra6 Nd2 Nd7 Kf5 Nf3 Kg6 f5 Kf7 Ra3 b8R Ng1 b7 Qb6 Be4 Be7 Bc2 Rf3 Rh3 Qc5 Rg3 Bh3 Ba3 Ngf6 Nde4+ Kc7 Kg7 Ng4 d6+ Kb6 d5 Nh2 Bc1 Ne5 d7 Bd6 d8R Nf1 Qd4 Rf2 Be3 Kb5 Qb2+ Kc4 Bd1 Qb5 Bb6 c5 Rd7 Qc6 Re7 Rf8 h8R Rf7+ Kg8 Bg4 Rc3+ Kd4 h7 Bh3 Rcc1+ Ke3 Rcb1 Bd7 Rd8 Bc8 b8B Bg2 Re6 Rc7 Rg6 Bh3 Rd7 Ba6 Re7 Bb5 Kg7 Bg4 Rd8 Bh3 Kg8 Kf4 Nd2 Kg3 Nde4+ Kg2 Qd4 Kh1 Rb3 Nd3 Qh8 Ne5 Reg7 Be7 d6 Bf8 Re3 Bg4 Rb1 a1Q Ra3 Qc3 Ra7 Qa5 Rf7 Bf3 d7 Bd6 Nf6 Be4 Re7 Bed3 Rb3 Ba6 Nfe4 Bc8 Ra3 Bb5 Rb7 Qd2 Ra6 Qa5 Raa7 Nef3 Ne6 Bh2 Ra8 Bf4 B6a7 Be5 Rb6 Rb7 N6g5 Bh2 Bf4 Rc7 Rb7 Bg3 Bb6 Bh2 Be3 Bd6 Bf4 Ne5 Bh2 f4 Raa7
R3rRB1/r1pK2P1/qb4q1/rN4N1/2P1Pn2/B2R1Qk1/nN1Rp3/n1b1R3 b - - 0 1 illegal: No possible last move, all moves rejected
2NN2kB/KPq5/1P1b4/1R1b1PRR/pnB1pbN1/3nNQ2/1q5r/N3r2q b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 c5 Kc4 e5 b4 a5 g4 h5 f4 e4 d4 h3 f6 a4 f5 h2 b6 h4 Kb5 h3 g5 c4 b7 c3 g6+ Ke8 f7+ Ke7 g7 c2 d6+ Kf6 d5 Rh6 d7 Rg6 d6 Rg5 Nd2 Rg2 Bc4 Ra6 Ngf3 Rg1 Nd4 Rg5 Qf3 Rg4 Bb2 c1B N2b3 Ra8 Rb1 Be7 f8N Nc6 Nc2+ Ne5 Nba1 Rg1 Ne3 Qc7 d8R Re1 d7 Bd6 Ng6 Ne7 g8N+ Kg7 Nf6 N7c6 Ne7 Nd3 Nfg4+ Kh7 Rg1 h1Q Bg7 h2 Re8 Rb8 Ka6 Qg2 d8N h1Q b5 Qb2 b6 Ncb4+ Ka7 Be6 Nc8 Bd5 Re6 Kg8 Rh6 Bd2 Rh5 Bc1 Nh2 Bd2 Rgg5 Bc1 Nhg4 Bd2 Nd1 B2f4 Nde3 Qf2 Nc6 Na6 Rh8+ Kf7 Rb5 Qb2 N8e7 Nab4 Rh2 Rh8 Nc8 Kg8 Nd8 Rh3 Qg2 Rf3 Rhh5 Rh3 Qf3 Rh2 Bh8+
2BqBNK1/qpP1r1b1/3N2n1/1P2pq2/2N5/Rb6/3NPQ1N/kr1nBrR1 b - - 0 1 illegal: No possible last move, all moves rejected
2R1Q1B1/1Bb1r1p1/4Np1r/1n1bP2b/NNk2B2/P1Pn3K/1b1Nq3/2R1N2b b - - 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 bxa5 c5 d4 e5 dxc5 Rh6 fxe5 Rh8 e6 Ke7 Kf2 b5 Kg3 d5 h4 f6 e4 b4 c6 Kd6 a6 Kc5 e5 d4 a3 b3 h5 d3 a7 d2 h6 b2 c7 Nc6 h7 Kd4 e7 Nb4 e8N Be6 c8N Ne7 Nb6 Ned5 Na4 Bd6 Nc7 Nc3 Nd5 Nb5 Bc4 Qc8 Ra2 Nd3 Nb4 Bb8 Kh4 g3 Qh5 d1B Bf4 g2 Qe8 Bh5 Kg3 Bg8 Bb3 Qc3 Kh3 Qe1 Nd2 Qe2 Ra1 Bd6 Bf7 Rd8 a8B Rd7 Bb7 Re7 Bc4 b1B Bcd5 Ba2 Rb1 Rf7 Rb3 Rd7 Rc3 Re7 Rc8 Bc7 Bb3 Bgf7 Be6 Bfg6 Bg8 Be4 Nc5 Bad5 Ngf3+ Kc3 Rc1 g1B Ne1 Bh1 Na4+ Kd4 Be6 Rg8 h8N Rf8 Ng6 Rh8 Nf8 Rh6 Bg8 Bf2 Ndf3+ Kc4 Ne6 Be3 c3 Bd2 Ra1 Bc1 Rb1 Bb2 Ra1 Nd6 Rc1 Nb5 Nd2+
1Bk2Nb1/nb2qp1P/p1N3N1/2BbBrRn/4P1B1/2P3Q1/R2bb3/KB4r1 b - - 0 1 illegal: No proof kernel
1BR2BqR/1RP5/Kb3Nn1/B1N4b/2QrB1br/2Pnb2p/1P2p2b/B1k5 b - - 0 1 illegal: Other
RrB1NQK1/1r2q3/5b1P/3pRr1P/p2kR3/Pn1r4/N1b1b3/R2N1BnR b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Be7 gxh5 Bf8 e4 f6 e6 Nh6 e5 Ng8 e7 Kf7 Bb2 Ke6 Bd4 Kd5 e6 Kc6 Be5 fxe5 Kd2 Kd5 Kd3 g5 e8R b5 f4 a5 h4 g4 c6 b4 c3 g3 a3 a4 h6 g2 f5 b3 h5 b2 e7 Nf6 c7 Ng4 f6 Ra7 f7 Na6 Qc1 Bg7 f8R Bf6 Ne2 g1R Qf4 Nh2 Nc1 Rb7 Na2 Nf3 c4+ Kc5 Ke4 Rg5 Nbc3 Ng1 Rf7 Rf5 Nd1 d6 Rff8 Bd7 c8B Bb5 Rg8 Qd7 Rg3 b1B+ Rd3 Bc2 Qf3 Nc7 Qf4 Ne6 Qf2+ Nd4 Qf3 Kc6 c5 Nb3 Qf4 Bc4 Qf3 Kb5 c6 Kc5 c7 Qe6 Rf8 Bb5 e8N Qe7 Rg8 Kc4 Rg2 Rg8 Re2 Ba6 Qg2 Kc5 Qg7 Bb5 Qf8 d5+ Ke3 e4 Re1 Rfg5 Kf4 e3 Re2 Rg3 Kf5 Rh8 Re1 Rf3+ Kg6 Rf5 Rc3+ Kd4 Re2 Bc4 Re1 e2 Re3 Qb4 Re5 Rg8+ Kh7 Qe7+ Qf7 Rg3 Qg7 Rc3 Kg8 Rd3 Qf8 Ba6 Bd7 Bb5 c8R Bc4 Ra8 Ba6 Ne3 Bc4 Bc8 Bb5 Red1 e1R Rd2 Rb1 Re2 Rc3 Re1 Be2 Nd1 Rd3 Re3 Rb8 Re5 Nc5 Re3 R1b7 Re5 Nb3 Re3 Bf3 Re5 Bg4 R1e3 Be2 R3e4+
2N2N2/r2q2bb/3N1P2/1n1Pp1rP/5kBr/2pR2Rb/N1nb1BQ1/N2K3B b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kf7 h4 Kf6 d4 e5 a4 g5 a5 c5 h6 b5 h7 c4 a6 c3 d6 b3 h5 g4 a7 b4 d7 b2 Qe2 b3 Bh3 g3 Qg2 Nh6 Bg4 Bc5 Na3 b1B Rh3 b2 Be3 Qe8 d8N Rg8 h8N Qd7 Bf2 Nf7 Kd1 Be4 Nc2 Bf8 Ne2 b1R+ Nc1 Nd6 Nhf7 Bg7 Nc6 Nb5 Ne7 Rb4 Na2 Nc6 Nd6 Rc4 Rb1 Nb4 Na1 Nc2 Rb4 Bh6 Rb1 Rg5 Rb4 Bg7 Rb1 Rb8 a8B Rb7 Rb4 Ra7 Bc6 Bb7 Nec8 Bd3 Rb2 Bf1 Bcf3 Be4 d5 Rca4 Rb4 Bed3 Rd4 Rb4 Qg1 g2 Rg3 Be4 Qh2 g1B Rd3 Bh3 Bh1 Rba4 Qg2 Rb4 Be1 Be3 Bf2 Bd2 Ne8+ Kf7 f6 Bh7 f5 Rba4 Be2 Rh4 Ned6+ Kg8 f7+ Kf8 Nb6 Ke7 f8N Kf6 Bg4 Rg6 Qe4 Kg5 Qg2 Kf4 f6 Rg5 Nbc8
4R3/Q2Nb1n1/NB3p1b/1BR2P2/1bP1Rqr1/P1bnrp2/3BBB2/k3n2K b - - 0 1 illegal: No proof kernel
5r1R/1k5r/4PBR1/1Npn1R2/1qr3B1/1nPb2R1/PKp2BQb/rR2nN2 b - - 0 1 legal: proof: g4 d5 f4 a5 b4 h5 gxh5 e5 bxa5 d4 fxe5 d3 c3 Ra6 Qb3 Ra8 Qc2 dxc2 h4 Kd7 d4 Kc6 Kd2 g5 e4 f5 h6 b5 h7 b4 d5+ Kb7 e6 c5 a6+ Kb6 a7 f4 h5 f3 d6 b3 d7 g4 e7 g3 e8R f2 h6 b2 e5 g2 e6 Bb7 Nf3 g1N Na3 b1R Bh3 f1R Bg4 Ne7 Rh5 Kc7 Nb5+ Kc6 Rf5 Qa5 d8R Qb4 Nh2 Ba6 Rd3 Nd5 Rg3 Bd6 Rg8 Kb7 Rg6 Rf4 Nf1 Rf8 h8R Nc6 h7 Rc4 Rgg8 Na5 Rg6 Rb3 Rb1 Nf3+ Kd3 Rb2 Be3 Ne1+ Kd2 Rad8 Kc1 Rd7 Bf2 Rdf7 Rgf3 Bh2 Rg3 Rd7 Rhg8 Re7 h8B Rh7 Bf6 Rb3 Rh8 Rb2 Kd2 Rb3 Rd1 Rb1 a8Q+ Kb6 Rc1 Ra1 Rb1 Nb3+ Ke2 Ne7 Qe4 Nd5 Qg2 Nd4+ Kd2 Kb7 Kc1 Nb3+ Kb2 Rf4 Nd4 Bd3 Nb5 Re4 Rf4 Rc4 Rf5
1nkr2n1/bb1B2K1/r2PBn2/1n5N/1B1pPr2/2p1Pq2/N2R1NQ1/B3R1B1 b - - 0 1 illegal: No possible last move, all moves rejected
1B1nbrRr/1b1b1Bb1/1kp5/N2NnP2/4Pn2/2B1K1Q1/BB2p2P/1qN1R3 b - - 0 1 illegal: No proof kernel
B1Q3kB/4p3/4NRN1/B5p1/1P1b1rrr/1n2RbB1/1nKPP3/1B1r1qNn b - - 0 1 legal: proof: g4 g5 a4 d5 c4 b5 cxd5 h6 axb5 Bf5 f4 Kd7 fxg5 Ke8 g6 Bc8 g5 hxg5 h4 f5 h5 a5 b3 c5 g7 Kf7 h6 f4 d6 a4 d7 f3 h7 a3 b6 c4 b7 a2 Bb2 c3 Bc1 c2 Nc3 Nc6 b8B Nf6 Ne4 Nh5 Bg3 Ra4 Rh3 Bb7 Bg2 Nb4 Bb2 c1N Qc2 f2+ Kd1 Nbd3 Qc8 f1R+ Kc2 Rf4 Nc5 Bf3 Ne6 Qc7+ Bc3 Nb2 d8B Qa7 Bda5 Qf2 Rb1 a1R Be5 Rad4 b4 Nb3 Rf1 Rd1 Bh1 Rg4 Bg2 Rdf4 g8B+ Kg6 Bf6 Bg7 Bf7+ Kh6 Bg6 Qe1 Bc3 Bd4 Rf2 Qf1 Bf5 Rf8 h8N Re8 Ng6 Kh7 Be4 Kg8 Bh1 Ref8 Ba8 Rh4 Be4 Rfg4 Bf5 Ba7 Bh8 Bd4 Be4 Bg2 Rf6 Bf3 Bb8 Ng3 Ba8 Bb7 Be4 Nh1 Re3 Bc6 Bg3 Bb7 Bd3 Bf3 Bc4 Nc1 Ba2 Nb3 Nd8 Rf7 Bb1 Rf8 Rfe6 Rf5 Rf6 Rff4 Ne6+
2RKb1Nr/bp1BN1RB/3N2r1/k1rq2Pp/4PQ1P/1b6/n5N1/n1r1NB2 b - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 g5 dxc5 e5 f4 Ra6 fxe5 Ra8 Bf4 gxf4 Kf2 f5 Kf3 d5 h4 Kd7 g4 Kc7 c4 h5 e4 d4 a4 d3 a6 d2 c6 Kb6 e6 Qg5 c5+ Ka5 a7 Be7 c7 Nh6 c6 Qg7 Na3 Bd8 e7 Qe5 e8N Bf6 Nh3 Rh7 Nd6 Be6 c8B Qb5 c7 Bb2 Rg1 Bc1 Nc2 Qc4 Bd7 Qc5 c8B Bd5 Ne1 Rg7 Qe2 d1R Qe3 Bd2 Rc1 Nc6 Rc2 Rb8 a8N Rc1 Nb6 Bb3 Nd5 Rg6 Ne7 Qd5 Ng8 Nb4 Rc7 Na2 g5 Kb4 a5 Ng4 a6 Rc5 a7 Ka5 a8N Bb4 Qc1 Ne3 Nb6 Nc2 Rg2 Na1 Rc2 Bc3 Qe3 Bd4 Qc1 Qf7 Nd5 Be3 Nde7 Qd5 Nf2 Bd4 Ng4 Bf2 Ne3 Bg1 Kg2 f3+ Kg3 f2 N3g2 f4+ Kf3 Ra8 Bf5 Rb8 Bcd7 Re8 Nf6 Rh8 Nfg8 Rgh6 Bh7 Rg6 Ke2 f3+ Ke3 Nb4 Kf4 Na2 Bc4 f1R Qe3 Rf2 Bf1 Rd2 Rc8 f2 Qg3 Rd1 Qg4 Rb5 R2c7 Rc1 Qf5 Rbc5 Qe5 Bh2+ Kf5 Bf4 Nf3 Be3 Nfe1 Rg7 Kf6 Bd4 Nef5 Rg6+ Ke7 Be3 Qf4 Bd4 Bc4 f1B Kd8 Be3 Ba6 Bb5 Ne7 Bg1 Be6 Be8 Bf1 Rb5 Bd7 Ba7 Rc2 Rc5 Rd2 Qe5 Rd5 Qd4 Rf5 Qd2 Rf7 Qd5 Rg7
rn2b2q/2R5/qppP1R1P/1PRnn1Rr/B7/2BQ1NB1/3b2NR/1Kn2k2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 d5 gxh5 d4 b5 d3 Qg4 Nc6 Qb4 axb4 cxd3 Nh6 d4 Ng8 d5 Nb8 Kd1 Kd7 Kc2 Kd6 h4 Ke5 d4+ Ke4 f4 g5 a4 e5 d6 c6 a5 g4 f6 b6 f7 g3 f5 g2 h6 Ne7 h5 Rh7 d7 Rg7 d5 Kd4 a6 e4 h7 e3 h8B e2 f6 e1Q h6 Qe3 a7 Rh7 Be2 Qe6 Rh2 Bb7 Na3 b3+ Kb1 b2 Nc4 Rg7 Bd1 Kd3 Ba4 Ng6 Bf4 Bc8 Ne3 Bb4 f8R Bd2 f7 Ne5 Nf3 Ke2 Rg8 Rg5 f8R Rh5 Rg5 Qdf6 d8Q Bd7 Ra3 Be8 Bg3 Qc8 Rc3 Qa6 Rc5 Qg7 Rf6 Qh7+ Nf5 Kf1 Bg7 Qg8 N5h4 g1N Ng2 Ne2 Qd7 Nc1 d6 Ne2 Qf5 Qh8 Qd3 Qf8 Ka2 b1N Kb2 Nc3 Ka1 Nd5 Kb1 Nbd7 Bh8 Rd8 a8R Nb8 Ra7 Qg8 Bg7 Qh8 Qa3 Nc1 Rc7 Ng4 Rf4 Rc8 Bc3 Ne5 Rf8 Nbd7 Rf4 Ra8 Rf6 Nb8 Qb3 Bf7 Qc2 Be8 Qd3+
2Q1R3/1BB2p1P/KnNnp2N/1rRB2Bq/4B1P1/nb1n1q2/P2r1b2/3N3k b - - 0 1 illegal: No proof kernel
7k/NbQNp3/r2nB1p1/1R1N3n/1R1PP3/3bqr2/1n1n1PKN/BqRN4 b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 g6 a4 Kd7 axb5 Bg7 g5 Ke8 h4 Bd4 h5 Bg7 h6 f6 hxg7 fxg5 Ra4 g4 Ra3 Bf5 Ra1 Bc8 b4 Kf7 d3 h5 e3 a5 b6 c5 b5 c4 d6 g3 b7 g2 d7 c3 b6 a4 Rh2 c2 Be2 a3 Rh4 a2 Rg4 h4 Rg5 h3 Bb2 c1N Bg4 h2 Qc2 h1B Qc7 Ra6 Nc3 Rh3 Nd1 Nc6 b8N Na5 Nf3 g1N Kf1 Nb7 Nh2 Nf6 g8N Be4 Be6+ Kg7 Re5 Qf8 d8N Nh5 d4 Nf3 Nf6 Nd3 Nbd7 Nd6 b7 Kh8 b8R Qh6 Rc1 a1Q Kg2 Qb1 Ba1 Nb2 Nc6 Bd3 e4 Qe3 Na7 Nd2 Rb4 Bb7 Reb5 Rf3 Nd5
1q1N3B/B2Pp1BP/4R2Q/r7/k1N1bbKp/nr1bP1BR/5Bb1/3nq2N b - - 0 1 illegal: No proof kernel
2N1B3/1PRR4/qN2p2r/3qnBP1/2Qn1B2/1P2pbN1/2r1r1r1/BkbK2B1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 f4 Kf7 d4 Kg6 g4 h5 f5+ Kf7 b6 c5 f6 Kg6 b7 a5 f7 c4 b3 c3 d6 a4 d5 e6 d7 h4 d6 a3 Qd3 a2 Na3 c2 Nc4 h3 Bf4 h2 Nb6 Nh6 Bh3 Nc6 Rd1 c1R Ne2 a1Q Qc4 Rc2 Ng3 Nf5 Rc1 Qa3 Kd1 Bh6 f8B Rg8 Bg7 Qa6 Ba1 Nfd4 Re1 h1R Rf1 Qf8 d8N Ne5 d7 Qd6 Nf7 Qd5 d8B Bd7 Nd6 Bc6 Ndc8 Rhh2 Bc7 Rhe2 Be3 Rh8 Bg1 Rg2 Rf7 Rh7 Nd6 Rf8 Re7 Rff2 Ndc8 Rfe2 Bd6 e3 Bc7 Bf8 Rd7 Ba3 Bb8 Rh6 Bd6 Nd3 Bf4 Ne5 Ne7+ Kg7 g6 Kf6 g7 Bb2 Nec8 Kg6 Rb1 Bc1 g8B Kf6 Nf1 Kg6 Bf7+ Kf6 Bfh2 Kg5 Ng3 Kf4 g5 Kf3 Be8 Kf4 Nf5+ Kf3 Bf4 Ke4 Qa4 Kd3 Ng3 Qdb5 Rb2 Bf3 Bg4 Qd5 Bf5+ Kc3 Qc6+ Kb4 Rb1 Ka3 Qc4 Ka2 Bc3 Qa4 Rb2+ Ka1 Ra2+ Kb1 Ba1 Qa7 Ra5 Qa8 Rc5 Qa6 Rcc7
5q2/2Rbp3/N2nQ3/nk2RbPp/3n1BRP/R2bPq2/3N3q/K1RBr1N1 b - - 0 2 legal: proof: d4 a5 f4 b5 a4 g5 axb5 c5 Be3 cxd4 Bd2 g4 Bc1 Ra7 g3 f5 Nd2 Bh6 Nb1 Bg5 Qd3 Ra6 Qd1 Rf6 fxg5 f4 Ra2 f3 Ra1 Rf4 gxf4 Kf7 Qd2 Kf8 Qd1 Ke8 Kd2 d5 b4 Kd7 c4 g3 Kc2 g2 Kb2 a4 c5 a3+ Ka2 f2 b6 Kc6 f5 d3 f6 d4 b7 d2 f7 d3 f8R Bf5 Qe1 d1Q Nd2 Kb5 c6 Nh6 c7 Nc6 b8N Na5 c8R Nf7 Rc7 Nd6 Na6 h5 h4 Rh6 Rf6 Qf8 Re6 Rg6 Re4 Re6 Rg4 Re3 Kb1 a2+ Kb2 Re4 Rh3 Bd7 Rb1 Qb3+ Ka1 Qbf7 Re3 Qf3 Rb3 Re6 Ra3 Re5 Bb2 Re4 Be5 Bf5 Bf4 Re5 Nh3 g1Q Re4 Qgh1 Ng1 Qh2 Rec4 Bd7 Rc1 Re6 Bh3 f1B Bg2 Qe3 Bd5 Qf3 Bb3 Re3 Bd1 Re4 Kb2 a1N Kb1 Nc2 Ka2 Kb6 b5 Nd4 Ka1 Bh3 Rg2 Bhf5 Rg4 Re5 e3 Rc5 Qf1 Rc2 Qh3 Rb2 Ne4 Re2 Nd2 Re1 R7c5 Kb7 Re5 Ka7 b6+ Kb7 Nc5+ Kc6 b7 Kb5 b8R+ Nab7 Ndb3 d2 Rc8 Na5 Rc7 Bd3 Bc2 d1B Nd2 B1e2 Bd1 B3f5 Na6+ Qd5 Qg2 Bc4 Qe4 Bd3 Nc5 Qc6 Qd5 Qca8 Qe6 Qf3 Na6+
B1K1N3/2prR1Rr/2Nr2p1/1RQ2BP1/n4P1k/1PB3qq/nbn5/1q2B2B b - - 0 1 illegal: No proof kernel
3rNb2/R2p3B/1Qq1PPbN/6Bb/3nrpB1/1B1b1PRN/3k2B1/3q2bK b - - 0 1 illegal: No proof kernel
q3N1Q1/k2q1BPK/B6p/B3pN1b/q6P/3N1R1q/2RnP3/Nr1r1Nbq b - - 1 2 legal: proof: c4 a5 f4 d5 cxd5 b5 a4 g5 b4 gxf4 axb5 a4 Kf2 Nc6 Ke1 Na5 bxa5 Qd7 Bb2 Qd6 Bc1 Qd8 Kf2 Kd7 Kf3 e5 Ke4 c5 Kf5 f3 d4 c4 h4 a3 g4 h6 d6 f2 a6 a2 d5 f6 Kg6 c3 g5 f5 b6 f4 b7 f3 b8N+ Ke8 a7 c2 d7+ Ke7 d6+ Ke6 Nh3 Nf6 Bg2 f1Q Nd2 Kd5 Nf2 Kc5 Rh3 Kb6 Nd3 f2 Rf3 Rh7 Na6 Nd5 Nab4 Qc7 d8N Be6 d7 Bd6 Nb7 Rd8 a8B Rc8 d8N Nc3 Ndc6 Ne4 Ne7 Ka7 Nf5 Bc5 Nbd6 Qd7 Bb7 Qh1 Qg1 f1Q Ne8 Rd8 Ba6 Rb8 Bb2 c1Q Bc3 Qa3 Nc2 Rb1 Ba5 Qaa4 Bh3 Rd1 Rc1 a1Q Qg4 Q1a3 Na1 Bg1 Rc2 Re7 Qg2 Bf7+ Kh7 Re6 g6 Rb6 Bg4 Rbb1 Bh5 Qa2 Qg5 Qfh3 Nf1 Nd2 g7 Qad5 Qd8 Qa8 Bg6 Bd5 Bf7 Be6 Ne7 Bg4 Nf5 Bh5 Ned6 Qag4 Qg8 Qga4 Ne8
4N3/2bKNqN1/n2PRqN1/2q4P/1pQ2p2/3R1PBb/1k3nB1/rbq1NB2 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 g4 axb4 gxh5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 Kd7 e4 Ra5 d6 Kc6 d7 Ra8 d5+ Kd6 Qd4 Ra5 Qd1 Ke5 d6 Rd5 exd5 b5 Qd4+ Kf5 Qd1 Kf6 Ke2 Ke5 Kf3 c5 Kg4 g5 h4 c4 a4 e6 a5 b3 h6 c3 a6 f6 h5 b4 h7 b2 a7 c2 a8B Na6 Qe2+ Kd4 Bf4 c1Q Nc3 b1B Rh3 e5 Bg3 e4 Kf5 e3+ Ke6 g4 Ne4 f5 Nf6 Kc3 Qc4+ Kb2 Ne8 e2 Nf3 f4 Ne1 Nf6 Ra4 Rg8 h8N Ne4 Ng6 Bg7 Ra3 Be5 Rd3 Qb6 Ke7 Rh8 d8N Be6 d7 Bc7 Bh4 g3 Nc6 g2 d8N g1Q Rhe3 Bh3 Ne6 Qg5+ Kd7 Qc5 d6 Qf6 Bg3 Rf8 Nc2 e1Q Nce7 Qec3 Bd5 Qf7 Ne1 Qcf6 Ba8 Nd2 Bh1 Ne4 f3 Nf2 Bhg2 Rg8 Ng7 Rb8 Ne8 Rb5 Re5 Ra5 Re4 Ra1 Re5 Ng4 N6g7 Nf2+ Re6
Qb2b1k1/B2bBR1R/1Pp1p2n/2R1PqqB/b1B3N1/2N1n1K1/2r1P2n/6B1 b - - 0 1 legal: proof: f4 a5 h4 g5 a4 d5 c4 gxh4 cxd5 b5 axb5 Ra6 Kf2 Re6 Ke1 Re5 fxe5 Qd6 Nc3 Qd7 Nb1 Qd8 Kf2 f5 g4 Kf7 d4 h5 b4 h3 b6 h4 b5 f4 g5 h2 b7 h3 b6 a4 d6 f3 d5 a3 d7 a2 d6 Nc6 b8B Nh6 g6+ Kg8 g7 Nd4 Be3 Nc2 Kg3 f2 Nc3 e6 Nf3 Be7 Rc1 a1Q Bg2 Qb1 Qd5 Bf8 Bd4 Ne3 Qa8 Qf5 Ba7 Rh7 Rhf1 h1B Nh2 Qdg5+ Ng4 h2 d8R Bd7 Bd5 Be8 d7 Bd6 Bc4 Bc6 Rb8 h1B d8B Ba4 Be7 Bhc6 Rb7 Bd7 Rh1 c6 Rh4 Bb8 Rc7 Kf7 g8B+ Kg7 Bf7 f1N+ Kh3 Nh2 Bh5 Kg8 Kg3 Rf7 Rb7 Qfg6 Rc2 Rf1 Rh3 Rc1 Bdc5 Nd1 Bg1 Ne3 Rh4 Nf3 Rh2 Qd3 Rf2 Nh2 Rf7 Qe4 Rd2 Qef5 Rd5 Rc2 Rc5 Kh8 Rh7+ Kg8 Bf8 Bc8 Rbf7 Bcd7 Be7
6b1/4r1p1/5nN1/qqk3n1/2BNp1Pn/QRR1N1n1/3KPqrP/N3BNR1 b - - 0 2 legal: proof: c4 h5 a4 b5 axb5 d5 cxd5 h4 Ra2 e6 Ra3 Bd6 Ra1 Bg3 fxg3 h3 Ra6 hxg2 Ra5 Nf6 Ra1 Ng8 b4 Kd7 d4 Kd6 b6 a5 b5 c5 g4 f5 b7 c4 b6 c3 Nh3 g1Q Qd3 e5 Nf4 a4 Ra3 c2 Nd2 Ra6 Ng2 f4 Rc3 f3 Ne3 Nd7 b8N a3 b7 a2 Nc6 a1Q b8R Ndf6 Na5 Qb2 Nab3 Ra7 Na1 Ne4 Rbb3 Be6 Qa6+ Qb6 Qd3 Qg2 Rg1 Ngf6 Qa6 Qa2 Qa3+ Qc5 Bb2 c1N Kd1 Qf2 Bg2 Bf7 Ndf1 Ng5 Kd2 Rf8 Bh1 Bg8 Bg2 Kc7 d6+ Kc6 d7 Nd3 d8N+ Kd6 d5 Ne1 Bh1 Re7 Nc6 Ng2 Nd4 Nh4 Bg2 Qg3 Bh1 f2 Be4 Qf3 Bd3 e4 Bc4 Qb1 Bc1 Qb4 Bb2 Kc5 d6 Qg3 d7 Qa2 Qa6 Qaa5 d8N Qbb5 Nf7 Qg2 Nh8 Qf3 Ng3 Qf4 Ng6 f1N+ Kd1 Qf5 Bc1 Qf4 Bd2 Qf2 Be1 Rff7 Nh1 Ng3 Kd2 Qd8 Qa2 Qda5 Qa3+ Qab4 Kd1 Nfh7 Rf1 Nh5 Rd3 Rf3 Kc2 N7f6 Rg1 Rg3 Rdc3 Rg2 Ng3 Qa5 Ngf1 Ng3 Kd2 Qb5 Qb2 Q4a5 Qa3+
B1qB1qQb/3rpB1b/kR1rr3/6KP/1Pq5/2p1PqN1/2R3n1/NN1BB3 b - - 0 1 illegal: No proof kernel
1rn1b3/1p3P2/bBkB2N1/1Bq1Bn2/B3Kb1p/1PR1nNP1/3b4/Q1q1N2R b - - 0 1 illegal: No possible last move, all moves rejected
3r4/n1p1N3/Pn6/q1R1k3/R1B1rq1N/1PBQbp1B/KRPnBrB1/2r5 b - - 0 1 illegal: No possible last move
1knQ2N1/1p4rR/R2n2rn/1P2r2P/1KNRBp2/2RPB3/4b2b/1bN1R2b b - - 0 1 illegal: No proof kernel
5B2/k2P2B1/P2Rpp2/1RKRR1R1/Q3b1N1/n3r1n1/NbB1P2n/br4nr b - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 h4 Bh6 h5 Ra6 g6 Ra8 g5 Bf8 g7 Ke8 Nh3 Qd6 Ng1 Qg6 hxg6 Ra7 Bb2 Ra3 Bc1 Ra8 Kf2 Kd8 Ke3 c5 d4 Kc7 a4 Kb6 d6 h5 d5 h4 a5+ Ka7 d7 b5 d8B h3 d6 h2 a6 c4 Kd4 b3 d7 b4 Nh3 c3 Ba3 b2 Qa4 c2 Nc3 c1B Na2 b1N Nf2 b3 Ng4 b2 Bh3 Bb7 Kc5 Nh6 g8R Bg7 Re8 Be4 Rd1 h1N Rd5 Ng3 Bb4 Bf6 g7 Na3 g8R b1R g6 Nc6 g7 Ne5 Bc7 Nf3 Be5 Bb2 Rd6 Rd1 Rb1 Ng1 Rgf8 Rd3 g8R Re3 Rg5 Rb8 Rbd1 Rb6 R1d5 e6 Rb8 Rh7 Rfg8 Bh8 Bg7 Ba1 Rge5 Rb7 Be1 Rb1 Bb4 Bb2 Rb5 Ba1 Nf6 Ng4 Bg2 Nh2 Ng4 Nhf1 Bf3 Rh1 Bg2 Nh2 Bf3 Bh7 Be4 Bf5 Bc2 Be4 Bf8 Bb2 Rgg5 Bf6 Bg7 Ba1 Ref5 Bfb2 Rfe5 f6 Ba5 Nhf3 Bd8 Nh2 Be7 Bg6 Bef8 Bd3 Ra5 Be4 Rb5
1nbr1NNr/3B1BP1/1R2pb2/3rPr2/3P2nR/K3kp2/Q5bN/B1B2B1b b - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 h4 Bh6 h5 Ra6 g6 Ra8 g5 Bf8 g7 Ke8 Nh3 Qd6 Ng1 Qg6 hxg6 Ra7 Bb2 Ra3 Bc1 Ra8 e4 Kd7 a4 Kd6 a5 Ke5 d6 Kd4 d7 f5 d8B b5 a6 h5 a7 c5 Qa4 h4 Kd1 f4 Kc2 h3 Kb3 e6 Na3 h2 Rb1 Nh6 g8N Bg7 Nc4 Ng4 Nb6 Bf6 g7 c4+ Kb2 b3 g6 b4 Nd7 Bb7 e5 Bc8 Nf3+ Ke4 d4 c3+ Ka1 b2+ Ka2 b3+ Ka3 c2 Ba5 Bg5 Bc3 Bf6 Bg2 Kd3 Nf8 Ke2 Bf1+ Kf2 Ra1 b1R B1b2 Ke3 Qa6 Re1 Rb1 c1R Ba1 Re2 Bcb2 Rc5 Qa4 Rd5 Qa5 Na6 Qa4 Rb8 a8B Rf2 Bc6 Ra8 Bd7 Nb8 Rg1 h1B Nh2 Bg2 Rh1 Rf3 Rc1 Rf2 Rc6 Rf3 Rb6 Rf2 Bc3 b2 Qa7 b1B Bcb2 Bbe4 Qa4 Na6 Qc4 Bef3 Qa2 Be4 Nf3 Rb8 Rh4 Bh1 Nh2 Beg2 Ne7 Rf3 g8B Ra8 g7 Nb8+ Ba4 Rd8 Bf7 Ra5 Ng8 Rad5 Bfb5 Rh3 Ba6 f3 Bf1 Rh5 Bd7 Rh8 Rh6 Rh5 Rh7 Rg5 Rh4 Rf5 Bc1+
N4BK1/2RrrBbn/P3b2k/NbpQ4/P7/rN1p3N/Rr1P2Nn/1B1b4 b - - 0 1 legal: proof: e4 f5 exf5 a5 h4 b5 b4 g5 c3 c6 c4 gxh4 bxa5 b4 Rh3 Qb6 Rh1 Qb5 cxb5 Bh6 Na3 Bg7 Nb1 Bf8 Ke2 Kf7 Ke3 Kg7 Kf4 d5 Kg5 h5 a4 e5 f4 b3 g4 d4 f6+ Kh7 f5 b2 f7 h3 b6 h4 a6 h2 b7 e4 f6 h3 Nc3 b1B Bd3 Ba3 Qb3 Bd6 Ra2 Bc5 Nce2 Nd7 b8N Bf8 Qd5 Bc2 Ba3 Bd1 Bb1 d3 Nc1 e3 Nb3 Bg7 Bf8 c5 Nc6 e2 Nca5 e1R Kf5 Re2 g5 Rb8 g6+ Kh6 Nc6 Rg2 Ke6 Rh7 Nca5 Rb4 Bd6 Rg3 f8N Ne5+ Nd7 Ng4 Kf7 Re3 Nb6 Bf5 Bf8 Be6+ Ke8 Re5 f7 N8f6+ Ke7 Re2 Na8 Rb6 Nf3 Rb4 Ne1 Re5 Rf1 h1R Ng2 h2 Rf4 Rb5 Rb4 Rb8 Rb7 Rg1 Rc7 h1B Nd4 Rb2 Ndb3 Kh5 Qc4 Nh2 Qd5 Bh8 g7 Kh6 g8B+ Bg7 Nf4 Rf1 Nh3 Rfe1 Qd6 Bb7 Qd5 Bc6 Bc2 Bh5 Ra1 Bb5 Ra3 Ra1 Bb1 Nd7 Ke8 Bd1 Bd6 Bh8 f8N Beg4+ Ne6 Nf6+ Kf8 Rd7 Bf7 Nh7+ Kg8 Bg7 Nef4 Re2 Bf8 Ree7 Ng2 Be6 Ra2 Rc2 Rb2 Ra3 Ra2 Rb2 Ra7 Rc7 Rb7 Rcd7 Rc7
B1b5/1b1NQRR1/nNqn1p1r/r1B1n1NP/3Rp3/1N3P2/2kp1P2/3r2NK b - - 0 1 illegal: No extended proof kernel
nB1KnkBN/5bN1/P2n2p1/3p2r1/B1pP3B/bPRr4/3RQb2/N2B2q1 b - - 0 1 legal: proof: g4 b5 f4 e5 fxe5 h5 b4 a5 bxa5 hxg4 Na3 b4 Nb1 b3 cxb3 Ra7 Bh3 Ra6 Bf1 Ra8 Kf2 c5 Ke3 f5 Kf4 c4 e4 g6 a4 d6 d4 g3 h4 g2 a6 Ra7 a5 Bd7 h5 Nh6 e6 Rb7 e7 Bc8 Kg5 f4 Kf6 f3 e5 f2 a7 Nf5 a8B Qd7 a6 Rh7 h6 Nc6 Rh3 Ra7 Rc3 Qb7 Nf3 g1B Ng5 Rh8 h7 Qb6 Qe2 Nb8 Bd5 Qd8 Na3 Be6 Bf4 Bf7 Rd1 Rc7 Rd2 Ng7 Nc2 Rc5 Na1 Rb5 Bh3 f1N Bg4 Ne3 Bg3 Ra5 Bh4 Nef5 Bgf3 Bf2 Be6 Rg8 h8B Qc8 Bg4 Qc6 Bh5 Qh1 Bd5 Qg1 Bg4 Kd7 e8B+ Kd8 Ba4 Rb5 e6 Ke8 Ne4 Nd7+ Kg5 Nb8 e7 Nd7 Be6 Nb6 Kf6 Na8 Ng5 Ng3 Bd5 N3f5 Bgf3 Ne6 Bg4 Nec7 Bg7 Rh8 Bh6 Bg8 Nf7 Rh7 Nh8 Bf7 Bf4 Rh5 Bhg5 Rh3 Bh4 Rd3 Bh2 Kd7 e8N Kd8 Ng7 Ne8+ Kg5 Rc5 Be6 Re5 Bf4 d5 Bfg3 Ba3 Bf3 Nec7 Kf6 Nd6 Bfg4 Rg5 Be5 Be8 Bg8 Bf7 Qf1 Be6 Bd1 Bf7 Qe2 Ncb5 Ne6+ Ke8 Ng7+ Kf8 Bf4 Be8 Ke6 Bf7+ Kd7 Ne8 Bb8 Nbd6 Kd8
2K1B1b1/b1n1pNQP/8/3Pn2p/2b1N1pr/BNB1Rrk1/1n1P3q/RNN5 b - - 0 1 illegal: No proof kernel
B1RQ3N/2bP1B1B/p4pr1/P5R1/p5bn/2NNk1rn/2B1r2P/n1K2B1q b - - 0 1 illegal: No proof kernel
1Nr1B3/1npnp1nQ/R1B1BrqP/1R4Bb/2Rb4/K2N2p1/3Pk2P/3Br3 b - - 0 1 illegal: No proof kernel
2bk3B/P2Pb1RR/1K3n2/B1p2pB1/1b4NP/Qr4n1/2n3p1/BNq2rRB b - - 0 1 illegal: No proof kernel
3B3r/1NQ1q1P1/B2Bp1K1/3rPBp1/1rRpq2k/Nb1nnN2/4bPB1/1R6 b - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 b4 g5 Ba6 g6 Bb7 h4 Bc8 h5 b3 h6 fxg6 axb3 g5 b4 g6 b5 Bg7 hxg7 g4 Kd2 Kf7 Kd3 Kf6 Ke4 h5 c4 a5 b4 g3 c6 g2 b6 a4 c7 h4 b7 h3 c5 a3 b5 a2 b6 h2 c6 Na6 b8B Nh6 b7 Nb4 Nf3 g1R Na3 Ng4 Rb1 a1Q Bg2 Nd3 Qc2 Ne3 Rb4 d6 Rc4 Bg4 c8B Ra5 c7 Qb1 Bf5 Rd5 c8B Rd1 Re1 h1B Bd2 Rb5 Ba5 Rb4 Bb6 Qe8 Bd8 g5 Bbc7 Qd7 b8N d5+ Kd4 Kf7 Nc6 e6 Na5 Qe7 Ba6 Kf6 Nb7 Bh5 Bfh3 Kg6 Bf5+ Kh6 Qc1 Bg4 Bd6 Kh5 Nh2 Kh4 Qc2 Nf1 e4 Be2 Qc3 Ne3 Rf1 Rb3 Qa5 Qc2 Qc7 Rd2 Rb1 Rb4 Bgh3 Bhf3 Bf1 Bd1 Bg2 Bfe2 e5 Nf4+ Kc5 Qe4 Kc6 Bb3 Kc5 Qf8 Kc6 Nd3 Kd7 Qg8 Ke7 Qe8+ Kf6 Qe7+ Kg6 d4 Qc5 Rb2 Qc7 Ra2 Nb5 Ra5 Na3 Rd5 Nf3+
3R3B/1Br2ppP/1K2BPRR/1nQb1n2/rR3pN1/P1qNbR2/1q5k/b7 b - - 0 1 illegal: No possible last move
1B4B1/1k1P1PR1/QN2P1rq/1n4rq/pp1BK2n/2NnBB2/p3bb2/4R2R b - - 0 1 illegal: Other
2QR2br/2p2B1B/1bK1B1RP/1P4qr/N1N1pp1R/2n1P3/qB1q3k/3Bn3 b - - 0 1 illegal: No proof kernel
k1BbB1K1/P1p3N1/4Bpn1/r5N1/1BbP2rR/q2P2n1/qpR1RQ2/1q1B4 b - - 0 1 legal: proof: h4 d5 f4 e5 fxe5 g5 hxg5 a5 b4 axb4 c3 d4 cxd4 Be6 Qb3 Bf5 Qd1 Bc8 Kf2 Kd7 Kg3 Kc6 Kh4 b5 Kh5 Kb7 g4 h6 e4 f6 Kg6 b3 Kf7 b4 a4 b2 d3 b3 g6 h5 e6 h4 g7 h3 a5 h2 a6+ Ka7 e5 Bd6 e7 Bf5 e8R Nd7 g5 Qb8 e6 Bg3 g6 Bh3 e7 Bf5 Bd2 Bh4 Qc2 Qd8 Be2 Rh6 Na3 b1Q Nh3 b2 Ng5 Qa2+ Nc4 Be1 Bb4 Nc5 Rc1 Rh4 Bd1 Qd6 Qf2 Ne4 Rc2 Ng3 Kf8 Qc5 Nd6 Be6 Nf5 Qd6 Rc1 Rg4 Rc2 Nh6 g8B Bc4 g7 Nf7 Bh7 Ne5 g8B Ng6+ Kg7 Qc5 Be6 Qca5 Kg8 Q5a3 Ng7 Bd2 Re1 h1Q Re4 Bf4 Ree2 Bd6 Rb8 Bc5 e8B Be7 Rb5 Qg1 Rf5 Bd8 Rf4 Kb8 Rfe4 Ra7 Rf4 Ka8 Rfe4 Rb7 a7 Rb5 Rf4 Ra5 Rfe4 Nh4 Bf5 Ng6 B6f7 Qe1 Bc8 Qd2 Bfe6 Qc1 Rf4 Qcb1 Rf3 Nf5 Rh3 Ng3 Rh4
qb1R2bR/Rr2Pn1N/r2r2nQ/rk3BR1/1p5B/1NP1R3/pN3PpK/8 b - - 0 1 illegal: No proof kernel
Kbb1R1NQ/pR4RR/3P3B/R3p2P/5p2/q1PB1bNn/2r2k2/1n1Br2b b - - 0 1 illegal: No proof kernel
1rnb1R2/pR3P1b/n2k1NR1/q2B1p2/R4bp1/N2b2rP/P4BB1/3K1RQ1 b - - 0 1 illegal: No proof kernel
3q2b1/K3pBPp/8/B1QR1qB1/3rn2p/bP1N2kP/q1R1BrbN/4B2N b - - 0 1 illegal: No possible last move
4B3/2N2K2/q1P2Np1/2R2PPB/2p2n1r/2p1R3/1NkQNr2/B1qbrNbb b - - 0 1 illegal: No proof kernel
N2b2R1/q2p2Q1/r4n1b/3R1P1P/3P1BpK/R3q2N/pBBRrR1k/1b3q2 b - - 0 1 illegal: No possible last move
N6N/Pp1n1r2/2Rn3r/n2B1RK1/qPP4B/3q1p1B/BpBQr3/1Rb3k1 b - - 0 1 illegal: No proof kernel
3b2N1/3p4/1r3N2/Nnnn1K2/1B1P1N2/R2pb1P1/rNQR2Pp/1krB1B1b b - - 0 1 illegal: No proof kernel
b1K2RN1/QPp3Bk/N3R2b/1pP1N2r/1P1N1Nb1/1q3br1/b5Rp/3B3n b - - 0 2 legal: proof: d4 g5 g4 b5 f4 gxf4 h4 e5 dxe5 Qf6 a4 Qh6 a5 Qf6 h5 Qb6 axb6 Nc6 g5 Nce7 Bd2 Nf6 Bc1 Ng6 hxg6 Ng8 Kd2 f5 Kc3 a5 Kd4 h5 Kd5 f3 b4 a4 c4 d6 Kc6 h4 e4 h3 g7 Kf7 g6+ Ke7 c5 a3 e6 Kf6 e7 f4 e8N+ Kg5 e5 Kh6 e6 d5 e7 f2 Nd2 d4 Ne2 a2 Qa4 d3 Nd6 f3 e8N h2 Qa7 Be6 Kb7 Bg4 Nb3+ d2 Bb2 d1B Nc4 Nf6 g8R Nh5 g7 Ng3 Nbd4 Kh7 Rg1 Nh1 Rg2 Bb3 Re1 a1Q Nf4 Qa2 Be2 f1B Bd1 f2 Ne5 Bfe2 Ba1 Bef3+ Re4 f1B Nf6+ Kh6 Nfd7 Kh7 Bc3 Qb2 Nb8 Ba2 Na6 Qb3 Ba1 Rd8 Bb2 Rd6 Kb8 Rg6 Ree2 Ba8 b7 Rg5 Re4 Bfe2 Ba1 Bgf3 Kc8 Rg3 Bc3 Be7 Re3 Bg5 Rf8 Bh6 g8N Bg4+ Nd7 Bef3 Re6 Rh3 Ne7 Rg8 Ne5 Rg5 Ng8 Rg3 Be1 Rh5 Bf2 Rgh3 Bh4 Rg3 Bf6 Qc4 Bh8 Qb3 Bg7
n2Rb3/4bR1r/1BP1Pp2/N3nPRb/1N4N1/QBp1RR2/qp4n1/2kn1K2 b - - 0 1 illegal: No proof kernel
4n3/2b1P3/Nr1Nn3/RbRN3b/R1N1pB2/P1KnP1p1/3QB1p1/2Nq2kb b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 h5 b4 b5 g4 hxg4 Ba3 a5 bxa5 e4 Bb2 Rh5 Bc1 Re5 fxe5 Ra6 Bg2 Rh6 Bf1 Rh8 d4 Ke7 Kd2 c5 h4 g5 d6+ Ke6 a6 Kf5 h5 Kf4 d7 Kg3 e6 Kf2 a7 f5 a8R f4 a3 f3 h6 c4 h7 b4 e7 b3 d5 b2 d6 Nc6 Ra4 Nd4 Nc3 b1B Rh5 Bd3 e3 Bh6 Rb1 Nf6 Nge2 Ne8 Rb5 Bg7 Qc2 Be5 Rba5 Rf8 h8N Rf6 Qb2 Ba6 Nf7 Bb5 Qa2 Bc2 Bb2 Bd1 Ba1 Bg3 Ne5 Rg6 Nc1 Kg1 Nb3 f2 Qb2 Bf3 Be2 Bh1 Qc2 Qc8 d8N Qd7 Ndf7 f1B Bf3 Qd8 d7 Rb6 Qa2 Bfg2 Be2 Bf3 Qb2 Ne6 Qc2 Qc8 d8N Qd7+ Qd3 Qd6 Nb7 Qd4 N7c5 Bh2 Ng6 Bc7 Nge5 Qd6 Na6 Qd8 Na2 c3+ Kc2 Qd4 Nc4 Qd7 N2b4 Qd4 Kd1 c2+ Kd2 c1N Nfd6 Qd5 Be5 Qd4 Rh4 Qa1 Qc2 Nd3 Bf4 Qd1+ Kc3 g3 Nd4 g4 Nb3 g2 Qd2 g3 Nc1 Nf8 Rh5 Ne6 Rc5 Bh5 Nd5
3k1BR1/1b1N1Pb1/R7/2Bpb2R/nQ3P1p/2pP1BBb/2nBn1qr/1K4N1 b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 f5 e4 g5 exf5 Bb7 a4 Bg7 h4 gxh4 b6 Bc8 b7 Ra6 b5 Rd6 b6 Rd5 Nh3 Rb5 axb5 a4 Ng1 Bf8 g4 c5 g5 e5 g6 h5 f6 a3 d3 h3 Kd2 a2 Kc2 h2 g7 e4 Nc3 e3 Ne4 e2 Bg2 c4 Qd2 Ne7 g8R Nec6 Qb4 Na6 b8B Nc5 b7 Na4 Bd2 e1N+ Kc1 d5 b6 Nc2 Ba7 N6d4 b8B Bb7 f7+ Kd7 f3 Qg5 Bg3 Kd8 f4 Rh6 Nf6 Ne2+ Kd1 Qg4 Nd7 Qh3 Bf3 Qg2 Bb8 Rh8 Bd6 Rh7 Bc5 Rh6 Rb1 a1B Rb2 Rh7 Ra2 Be5 Ra3 c3 Ra1 Ned4 Kc1 Ne2+ Kb1 Rh8 Rg6 Bfg7 Rg4 Ba6 b7 Rh7 b8B Bb7 Bbd6 Rh8 Bf8 Rh6 Nh3 Rh8 Rd1 h1B Rg5 h4 Rh5 Rg8 Bfd6 Re8 Ng1 Re6 Bf8 Rg6 Bgf2 Rg3 Rc1 Rh3 Bg3 Rh2 Ra2 Qf1 Ra3 Bg2 Re1 Bh3 Ra2 Nb6 Ra6 Qg2 Rc1 Ne3 Rc2 Na4 Ra2 Nc2 Rg6 Bh6 Rg8 Bhg7 Ra3 Nb2 Ra5 Na4 Ra6
6Q1/n1p1r1pB/1R2RPr1/2R5/2PqB1b1/P1Bn2kB/3rn2p/1nNB1K1N b - - 0 1 illegal: No proof kernel
3B1r1B/N1pN3R/P4nk1/K2n2q1/1P2bbnn/2Qb1Bp1/R1P3Np/1B2B3 b - - 0 1 illegal: No proof kernel
1n1NbK1R/pQ2RP1p/1pbP2B1/4N2P/1b3q1r/1R4R1/kBq2R1b/1r2N3 b - - 0 1 legal: proof: e4 f5 b4 d5 exd5 f4 b5 f3 b6 Na6 gxf3 Nc5 f4 Ne4 a4 Nd6 a5 cxb6 f5 b5 a6 b4 Ra5 b6 Ra1 Nb7 axb7 Bd7 Bd3 Be6 Bf1 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 e5+ f6 b3 b8R Kb4 h4 e4 d4 g6 c4 b2 f4 e3 c5 e2 d6 e1Q d5 Qe5+ f5 Qee8 c6 Qe2 c7 Qe4 d7 Qee7 h5 Qe4 Rb7 Bc5 d6 Ne7 Kh6 g5 Kg7 g4 f7 g3 f8R g2 f6 Qc2 Rh3 Nc6 Nf3 Kb3 Rg3 g1B Bd3 Nb8 Ne1 Bb4 Qf3 Bh2 Na3 b1B Bb2 Rg8+ Kf7 Ba2 Nc4 Rg4 Rb1 Rh4 Ne5 Qe8+ Kg8 Qe7 d8N Bd7 c8R Be8 f7 Qf6 Re7 Qh6 Qb7 Qf4 Rc1 Bb1 Rc3+ Ka2 Rb3 Qc7 Bc4 Be4 Bd3 Qc2 Kg7 B4c6 Bg6 Nd7 Rd1 Rc8 Rh8 Nb8 Kf8 Rc7 Rd2 Rc8 Ng4 Rc7 Re4 Re7 Rf2 Re5 Ree2 Rd5 Re6 Rd1 Re7 Rb1 Ne5
4N3/1NNNBP1Q/R1q1q1q1/qpr1pp1b/1nBR3K/r4PP1/7B/2b1N2k b - - 0 1 legal: proof: e4 a5 c4 g5 b4 axb4 h4 d5 cxd5 f5 hxg5 Nd7 e5 Ndf6 exf6 Qd7 Rh3 Qd6 Rh1 Qd8 a4 Kf7 d4 Kg6 d6 b5 f7 h5 a5 c5 d7 e5 a6 c4 d5 h4 a7 h3 d6 b3 Bf4 b2 Nd2 b1Q Ngf3 Kh5 g6 Kg4 g7 h2 Ra6 c3 Nb3 c2 Bc4 c1Q Nc5 Qb6 d8B Qa1 d7 Nf6 g8N Nd5 Be7 Bb7 d8N Qe6 Nd7 Nb4 Ke2 Qca3 Ne1 Qa5 Ngf6+ Kh4 Qa4 Bh6 Ne8+ Kg4 Rf1 h1Q Bh2 Bc1 g3 Rc8 a8N Kh3 Nac7 Qhc6 Qd1 Ba8 Nb7 Qab6 Rh1 Qaa5 Kf1 Rh4 Rg1 Re4 Rg2 Re3 Qd2 Ra3 Qh6+ Kg4 Qh7 Qg6 Nc2 Kf3 Kg1 Qce6 Kh1 Qbc6 Rg1 Qgf6 Rd1 Qg6 Rd4 Qcb6 Nd5 Rc5 Ndc7 Qec6 Bg1 Qce6 Kh2 Qbd6 Kh3 Qc6 Kh4 Kg2 Bh2 Kh1 Nbd6 Qcb6 Ne1 Bf3 Nb7 Bh5 f3 Qbd6 Bd8 Qc6 Be7
1Q2NNkr/7n/3pPnBq/1B4p1/Pbn1bp2/RR1q2RR/5P1R/2K1B1n1 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 b4 Qd5 Ra6 Qd1 Rb6 b3 Rb5 cxb5 a4 Bf4 axb3 Bh6 Ba6 Bc1 Bc8 Kd2 f5 e4 Kf7 h4 g5 a4 c5 b6 d6 e6+ Kg7 h6+ Kh7 e5 b2 h5 b3 e7 c4 e8B f4 b7 Nd7 b8R Ngf6 e6 Ne5 Nc3 b1Q Rh3 b2 Nd5 Qf5 Nc7 Nc6 Bg6+ Kg8 Rg3 Nb4 Nf3 Nh7 Qb3 Bg7 Ra3 Bb7 Nh4 Be4 Ne8 b1N+ Kd1 c3 Bb5 Qh3 Bd2 c2+ Kc1 Bc3 Be1 Nd5 Rb6 Nd2 Rb7 Nhf6 Qb4 Nc4 h7+ Kf8 Qb1 Bb4 h6 Qb6 Qb3 Qd4 Rb6 Qd3 Qb1 Rg8 h8R Qh2 h7 Qh1 Nf3 Qh5 Ne5 Qh6 Nc7 Kg7 Nd7 Rb8 Rf8 Rc8 h8R Nh7 Re8 Rb8 Nf8 Ra8 Reb8 Ndf6 Rc6 Nb2 Rcc3 Nc4 Rcb3 Nb6 Rc8 Qh1 Kb2 c1N Rg2 Qh5 Nd7 Nf8 Rc3 Nbd5 Ba6 Ne2 Rg3 Qh1 Rh4 Rb8 Re8 Ng1 Kc1 Bc5 Qb7 Rd8 Qb8 Ne3 Rcb3 Bb4 Bb5 Nc4 Rh6 N8h7 Rh8 Nf8 Rh5 Re8 R8h6 N8h7 Rh4 Rh8 Ne8+ Kg8 Nf8 Qg2 Rh1 Qh3 Rh2 Qh5 Bf5 Qg6 R6h3 Qh6 Bg6
2rBB1Bn/nNp3N1/1q2PKP1/pnPRp1n1/2R5/bb1N1Q2/BB6/6kq b - - 0 1 illegal: No proof kernel
R2r1bn1/2Kp2r1/1pRPN2q/4Rq2/qP5p/B3N2k/q3BP1R/QR2N2n b - - 1 2 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 a4 Bc4 b6 Bf1 Bb7 Bb5 Bd5 Bf1 Bb3 cxb3 a3 Rh3 axb2 Rh6 Bg7 Rh1 Bf8 Ke2 Kf7 Kd3 h5 Kd4 c5+ Kd5 e5 g4 h4 d4 c4 a4 e4 b4 c3 f6 Kg6 a5 c2 f7 e3 a6 e2 a7 e1Q Nf3 Qe3 Nbd2 b1Q Be2 Bg7 Kd6 Qf6+ Kc7 Rh5 f8N+ Kf7 g6+ Ke7 d5 Re5 g5 Qc3+ Nc4 Qf5 Ne1 Qcb3 Ne6 Q1a2 Ba3 c1Q Rb1 Bf8 g7 Nc6 g6 Kf6 d6 Rd8 a8R Qh6 Ne3 Qa4 Rg1 Rb5 Rg5 Nce7 Rg2 Re5 Ra5 Re4 Re5 Rg4 Qd4 Qff4 Qa1 Nf5 Rc1 Qe4 Rc6 Ng3 Rg1 Nh1 Rg2 Ne7 g8R Qf5 g7 Kg6 Rh8 Kh5 g8R Qh7 Nf3 Qh6 Rg1 Rg7 Rb1 Rf7 Rg2 Ng8 Bc4 Rg7 Ne1 Rg3 Nf1 Kg4 Be2+ Kh3 Ne3 Qg7 Ra5 Qgf6 Rh5 Qh6 Ra8 Rg7 Rhg5 Qfh7 Re5 Qf5 Rh2+
BBBkBNKn/4P1p1/NRPpRbqb/1p5q/Nr6/3b1bQ1/n2P4/1B6 b - - 0 1 illegal: No possible last move
2BR1n2/2N1Nb2/4P2Q/1k2B1pp/5rRn/1BbPn1Kp/1b3N1P/r1N2Nb1 b - - 0 1 illegal: Other
b3Nb1Q/n1bkn2n/2P3Rp/p4N2/2BB4/r2p2N1/P1NKPRr1/nB1N4 b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 fxg4 h4 g3 Be3 g4 Bc1 Qg5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 f4 a5 c4 d5 c6 b5 c7 g2 g6 h6 g7 b4 e6 g3 e7 b3 c5 b2 f5 d4 f6 Rh7 f7+ Kd7 e8N Na6 Nh3 g1N Nc3 b1N Ng5 g2 Nge4 Nb8 Rh2 Nd2 Bb2 Rh8 Ng3 Ne7 g8B Ba6 c8N Bb7 Ncd6 Ra6 Ndf5 Ba8 Qb3 Rc6 Nd1 Rg6 Qc3 Nh3 Bh7 g1B Bg2 Rg4 Bd5 Nbc6 Rf2 Bh2 Bc4 Nb3 Rb1 Na1 Kd2 Rhg8 Bg6 Ng5 Bh7 Bg7 f8N+ Kc8 Rc1 Na7 Ne6 Bf8 Bg6 Nh7 Rb1 Nc2 Ba1 Re4 Rb6 Re3 Qb2 Kd7 Ra6 Rh8 Qb8 Rb3 Qe5 Rg8 Qh8 Rc3 Nh5 Ne3 Nfd6 N7d5 Bb1 d3 Nf5 Ra3 Ned4 Rg2 Rg6 Bc7 Nhg3 Nc2 Bc3 Na1 Nc2 Ne7 Bg7 Be4 Bd4 Ba8 c6+
2B2K1R/1bbB2N1/pBN3rP/3b4/2r2BRN/rP2pB1p/P5Qn/2rk1n2 b - - 0 1 illegal: No proof kernel
7r/1BpP1k2/p2N4/Qn1Bn1BR/1nr1r3/P2b3R/1BP2bpK/2nB2NN b - - 0 2 illegal: No possible last move
r1NR2Nb/2kB4/n2pnprb/3Pp3/B2QN3/N3PB1p/b1K2P2/2R1N2q b - - 0 1 legal: proof: g4 b5 b4 h5 a4 g5 axb5 c5 bxc5 Rh7 h4 Rh8 Bb2 Rh6 Bf6 Nc6 gxh5 Rh7 h6 Nb8 h5 Rh8 Be5 Qa5 Bg3 Qd8 Bh4 gxh4 c4 a5 d4 e5 Kd2 h3 e3 f6 c6 d6 h7 a4 c5 a3 b6 a2 b7 Bg4 h6 Be2 c7 Kd7 c8B+ Kc6 d5+ Kc7 c6 Bf3 Na3 Qe8 Kc2 Qh5 Qd4 Ra7 Be2 Ra6 Bd7 Bg4 Nf3 Ne7 Ne1 Bg7 Bf3 Rg8 h8N Ra8 h7 Ng6 Nf7 Nf8 h8N Na6 b8N Ne6 Ng6 Bh8 Ne7 Rg6 Ng5 Bf5+ Ne4 Qh4 Rb1 a1B Nc8 Bc3 Rg1 Qg4 Rc1 Qg2 Be8 Qh1 Rg5 Rh6 Rg8 Ba5 Bd7 Rg6 Rd8 Rg1 Ne7 Rg6 Ng8 Bb6 Be8 Ba5 Nd7 Rb8 Nb6 Ra8 Nc8 Bb6 Kd1 Ba5 Nd2 Bb1 Ne4 Ba2 Kc2 Kb8 Rd7 Bd8 c7+ Kb7 Ng3 Be7 Rd8 Bf8 Ba4 Bh6 Ne4 Ra7 Nb6 Ra8 c8B+ Kb8 Bcd7+ Kc7 Nc8
4R2r/2n1Rp1r/1PB5/2N3Qp/2bPp2B/K1P2Rb1/B4qpn/Bk1N2Bb b - - 0 1 illegal: No proof kernel
2n2kR1/BN1bpp2/3Q4/1B1BR3/pB1b2p1/Kb1Br1nN/PR2P2P/q1r5 b - - 0 1 legal: proof: f4 c5 c4 h5 b4 g5 bxc5 d5 cxd5 Bg7 fxg5 Bf8 g4 hxg4 d4 b5 Kd2 a5 Kc2 a4 Kb2 b4 c6 b3 g6 Ra5 g7 Ra6 d6 Ra7 d5 Bb7 c7 Ra6 c8B Rh6 Bg2 Qc7 d7+ Kd8 Be3 Qc2+ Ka3 b2 Ba7 Qe4 Nd2 b1B Nc4 Rhb6 Nd6 Rc6 Nh3 Qe5 Rf1 Rc7 Rf5 Nh6 g8B Bg7 Bh7 Bc2 Rb1 Nc6 Rb2 Bb3 Bg6 Qf6 Re5 Nf5 Bf3 Ng3 Bd3 Rb6 Bh1 Ba8 Bca6 Qf1 Qd2 Qa1 Bab5 Bb7 Qd1 Bc8 Bf3 Nb8 Qd2 Rc1 Bfe4 Nc6 Nb7+ Kc7 d8B+ Kd7 d6 Ke8 d7+ Kf8 Bd5 Bh8 Rf5 Bd4 Re5 Ra6 Ba5 Rb6 Bb8 Na7 Bb4 Rf6 Qd1 Rf3 Qd2 Re3 d8R+ Kg7 Rf8 Bd7 Rh8 Nc8 Ba7 Bc2 Rh7+ Kf8 Rg7 Bb3 Rgg5 Re4 Qf4 Re3 Qf6 Rc2 Qd6 Rc1 Rg8+
RB6/Kbp3N1/3N1pkP/1rp5/Q1P5/2B1nrbR/1pRqRPB1/bR3n2 b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 e5 dxe5 d6 b4 Nc6 bxa5 Nb8 Qd4 Qe7 Qb4 Qd8 Qc5 dxc5 h4 g5 a4 b5 e4 b4 Ke2 g4 e6 b3 e5 g3 a6 g2 e7 Nh6 a5 Ra7 Bd2 Bg7 Nf3 g1B Bg2 Ng4 Nd4 Bf8 Kd3 Nf6 Kc4 Ne4 Kb5 Ng5 c4 Nh7 Ne6 Qd4 Nc3 Ra8 a7 Qg4 a6 Qg8 Ne4 Bh6 Rb1 Nc6 Nd6+ Kd7 e8R Qg7 Rh3 Bb7 Ba5 Qg5 Bb6 Nd4+ Ka5 Ne2 Kb5 Rb8 a8Q Rf8 a7 Bd5 Ka6 Rb7 Rb8 Ke7 Rb2 Qd2 Rc2 Be3 Ng7 Bd4 e6 Kf6 e7 Bh2 e8R Ng3 Re1 Bc3 Rbe8 Rb8 R8e2 Ba1 Rb1 b2 Qc6 Bf3 a8R Nf1 Ba7 Bg3 Qa4 Rb5 Bb8 Bb7+ Ka7 Rd8 Nc8 Rd3 Nd6 Rf3 h6 Bf4 h5 Bg3 Rh4 Kg5 Rh3 Nf6 h7 Nd5 h6 Nde3 h8B Kf6 Nh5+ Kg6 Bc3 f6 Ng7
1r2b1Rk/3qb1p1/2BpN2q/1nrBp1B1/5p2/B1R2QNP/P2BN1Pn/1K6 b - - 0 1 illegal: No possible last move, all moves rejected
nkb2bRN/pP2P2R/PR1B4/nB2b3/1Bp1p3/3Qq3/2pN1r1n/4BBK1 b - - 0 1 illegal: No proof kernel
qNR1R3/1N1r1P2/r1P5/pNBB1r2/p1p3p1/Pk3bKn/1NB2Q1N/5bb1 b - - 0 1 illegal: No proof kernel
2rR2B1/2N1p1Qn/n1N1Kpbn/1R1PbNp1/6Nb/1R1NB1Pk/1pP5/q7 b - - 0 1 illegal: No proof kernel
NB4RB/1b2PRqr/1p2q2B/N2p2k1/Kp2Pp1b/1r1P1R1Q/2BnB3/3r4 b - - 0 1 illegal: No possible last move
2Br2rn/1B2Qp2/1Bpk4/2Rn3B/4PP2/1rRPnp1p/Bbb2N1K/2R1N3 b - - 0 1 illegal: No proof kernel
K2N1rN1/2P2Q2/NN1P1BRp/kb2q2n/3p3P/4nBNR/1p2p1R1/n2n1r2 b - - 0 1 legal: proof: e4 d5 b4 c5 d4 g5 dxc5 a5 f4 axb4 fxg5 e6 e5 Bd6 exd6 Qb6 Ba3 Qc7 Bc1 Qd8 Kf2 Kd7 Ke3 Kc6 Kd4 f5 h4 b5 a4 b3 g4 h6 c4 b2 a5 f4 g6 f3 a6 b4 g5 f2 g7 b3 a7 Rh7 g6 Kb7 c6+ Kb6 c7 Na6 c5+ Kb7 c6+ Kb6 Ra2 Nb8 Nd2 b1N Ndf3 Qf8 Ne5 Nc3 Ne2 Qe7 Rh3 Kb5 Nf7 Bd7 c8N Na6 Bb2 Kb4 Nb6 Nf6 g8N Nh5 g7 Rf8 a8N Nc5 Bg2 f1N Ng3 Ne3 Qf3 Ncd1 Nc7 Qg5 Ba1 Rh8 Rb2 Ka5 Na6 Qe7 c7 Bb5 Nd8 Rf4+ Qe4 Rf1 Qh7 Qe8 Bf3 Qe7 Nf6 Rf8 Rg2 Qe8 Ke5 Qe7 Bd4 b2 g8R Nb3 Rg6 Na1 Ng8 Qe8 Qf7 Qe7 Nb4 Qe8 Bc3 Qe7 Kd4 e5+ Kc5 e4 Bf6 d4 Na6 Qe5+ Qd5 Bd3 Kc6+ Bb5+ Kb7 Nf5 Qc4 e3 Qb3 e2 Ka8 Nfe3 Qf7
1n4n1/1p6/1Np2q2/1NnRNpn1/1B1p1N1r/2P2b1Q/rP1BB1PN/Rk4K1 b - - 1 2 illegal: No possible last move
5bRn/Qp1k1p1n/rRbr3R/P1BP4/1p2Nq2/1PNB2R1/2pBK2p/1R6 b - - 0 1 legal: proof: f4 a5 c4 g5 h4 e5 fxe5 d5 hxg5 Qe7 cxd5 Qd7 Qb3 Qd8 Qb4 axb4 e4 c5 d4 h5 a4 c4 g4 c3 g6 h4 a5 c2 e6 h3 e7 Bd7 d6 Nc6 e5 Bh6 g7 Bf5 g5 Rb8 d5 Rc8 b3 Be4 g6 Qb6 Ne2 Rd8 Ng3 Bd3 Nc3 Qc7 Rb1 Be2 Nge4 Bd3 Bd2 Ba6 Bd3 Qb6 Ke2 Kd7 e8Q+ Kc8 e6 Nf6 g8R Bf8 e7 Rh6 g7 Nh7 d7+ Kc7 Rh2 Qd4 Rhh1 Ra8 d8B+ Kc8 Rh2 Ne5 Qb5 Rg6 e8R Rd6 Re6 Ng6 Qb6 Nh8 Be7 Bb5 Qa7 Kd7 Rh6 Ba4 Rg2 h2 Rg3 Bc6 Rgg6 Re6 Bc5 Rd6 Re6 Qe5 Reg6 Qf4 Rg3 Be7 Rc8 Bf8 g8R Ba4 Rc6 Bb5 Qb8 Ra6 Rb6 Bc6 Qa7
bN1q3q/B4r2/3BQ3/Bp3p2/nP2Br1B/3KNPq1/2RbR1Pn/q1Rq1k2 b - - 0 1 illegal: No proof kernel
N1b2rr1/1p4BN/3P1n1B/KPnrb2r/1RR1pB2/3n1q2/1QB1P3/1q3RBk b - - 0 1 illegal: No proof kernel
R1N1N2B/r1qqp1r1/k1npnq2/1bQ1N3/8/b2PPrrB/3R2PK/1NNR4 b - - 0 1 illegal: No proof kernel
1b5K/QB2BBnp/1N1p4/2RPr3/P2rB1rP/1q2n2N/b1rr1k2/1B3NRr b - - 0 1 illegal: No proof kernel
B4k2/Np1p1R2/qP6/1rbP1Q2/RBK1R2R/b1P3pb/1RnNr1n1/rN2q3 b - - 0 1 illegal: No possible last move, all moves rejected
R1q3B1/3n1Npq/k3p1Pb/1rBP3N/4r1Br/pN1B2Rb/4P1b1/K1n3QB b - - 0 1 illegal: No proof kernel
1K4Q1/Np1Rp1Bk/4BB1B/q1b1P3/1PbrNn2/rP2b1N1/2pqnq2/R1B5 b - - 0 1 illegal: No proof kernel
8/1B2N2q/K3B1Qq/NB1bPpp1/Rr2p3/4r1bn/RNqB1PP1/1knr3B b - - 0 1 illegal: Other
4N1k1/1NKQ4/p4qPp/4B2r/R2qNrbP/1r1qN1N1/P3p1n1/bnBBR3 b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 c5 bxc5 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 e5 Ke3 b5 c4 f5 g4 Kf7 d4 a6 d5 h6 d6 b4 c6 b3 g6+ Kg7 d7 b2 g5 Ra7 c5 Nf6 c7 Nh5 c6 Rb7 Na3 b1Q Nc2 Kg8 g7 Nf4 Be2 Rb3+ Qd3 Qf6 d8B Nd7 Bd1 Nc5 Ne2 Qb2 Ng3 Na4 h4 Bd7 c8N Nc3 c7 Nb1 Re1 Ba3 Nd6 Ng2+ Ke2 e3 Kf3 e2 c8N f4 Ke4 f3 Kd5 f2 Nb7 f1Q Ncd6 e4 Bc7 e3 Ne8 Bc8 Be5 Bg4 Qb5 Bb4 Qd7 Bc3 Kc5 Q1f5 Rf1 e1R Rf4 e2 Ra4 Rf1 Ne3 Rf4 Kd5 Qd3+ Kc5 Qe7+ Kc6 Qf6+ Kc7 Qbd2 Na5 Qd4 Nb7 Q2d3 Nh5 Kh7 Ng3 Rf8 g8N+ Kh8 g6 Rf5 Ne7 Rh5 N7f5 Kg8 Ne4 Qe6 Nfg3 Rf4 Bc2 Qf6 Ba3 Nd2 Re1 Nb1 Bc1 Ba1 Bd1
3r1r2/1K3NrR/p6n/2NP1p1p/bb1BBPrN/1Q5r/k3nR1P/2B1BBq1 b - - 0 1 illegal: No proof kernel
3R1N1n/3pn1p1/k1B2Bbb/3PnB1N/b2q1P2/1r1NB3/prQ3PR/2K1b1B1 b - - 0 1 illegal: No proof kernel
bBb4R/1p1pRrRN/3qrb2/Nn6/QP2P1R1/2Nk4/1p1P4/1KRr1nrB b - - 0 1 illegal: Other
1N1RQ2R/1p1nq1r1/3Nrp1K/pPb2R2/P2b4/2q2Bbb/Bk2nP2/2N2N1N b - - 2 3 legal: proof: d4 e5 g4 h5 gxh5 d5 c4 Qg5 Be3 Bg4 cxd5 Bd7 d6 Bc8 d5 Qd8 Bd4 exd4 Kd2 Kd7 b4 c5 e4 g5 h4 a6 h6 d3 Ke3 g4 Kf4 c4 h7 c3 h5 c2 e5 c1B+ Nd2 g3 e6+ Ke8 e7 Kd7 Kg5 g2 h6 Qe8 Be2 Ba3 Bf3 Nc6 Nf1 d2 Qe1 d1Q Ne2 g1B Nc1 Bb2 a4 a5 b5 Nb8 Rh5 Nc6 Ra3 Nb8 Rd3 Qd8 Rd4 f6+ Kg6 Qc7 Rf5 Qd3 e8B+ Kd8 d7 Ra6 Kh5 Qdc3 Bf7 Bc5 Qe3 Qd6 Qe8+ Kc7 d8N Kb6 Ne6 Qe7 d6 Bh2 d7 Bg3 d8N Nd7 Nc6 Ne5 Nc7 Qc2 Be6 Bb4 Ba2 Kc5 Rd2 Bf4 Rg5 Bh3 Nb8 Re6 Rd8 Bd4 Qg6 Qc3 Ng3 Ba3 Qf7 Kb4 Nh1 Nd7 Qe8 Bh2 Bb1 Kc4 Nd5 Bac5 Ne3+ Kb4 Nf1 Ka3 Ba2 Kb2 Bd1 Qg7 Re5 Ne7 Bf3 Bg3 Rf5 Rg8 h8N Ng6 h7 Qe7 Kh6 Nf4 Nf7 Ne2 h8R Rg7 Nd6
R2R1K2/P1p3B1/1b2NR1r/1pp2Bn1/3q2qr/1P1QNR1b/b1PR1N1k/4b2n b - - 0 1 illegal: No proof kernel
4R3/3ppbn1/3Q1B2/3qPqR1/1rR2bP1/qBkP2N1/p2R2Nq/K1B1nr1R b - - 0 1 illegal: No proof kernel
1BN1BrQ1/n5R1/2pp4/1rPPp2N/P1b1N2p/2BB4/1n2KRb1/k1r1B1bq b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 a5 b4 axb4 hxg5 Ra5 Rh6 Ra7 Rh1 Ra8 g4 Kf7 f4 b5 d4 h5 a4 e5 c4 c6 f6 Ke6 g6 h4 d5+ Kd6 g7 Kc5 g5 b3 f5 Kb4 f7 b2 f6 Nh6 g8B Nf5 g6 Nd4 g7 Na6 Nh3 Nc5 Nf4 Qb6 Nd2 Kc3 Ra2 b1R Qg4 b4 Bd3 b3 Rg1 b2 Nh5 Nb5 Ke2 Ba6 Ne4+ Kb3 Qe6 Rb8 Bd2 Rc1 Be1 b1B Bc3 Be7 f8B Na7 f7 Qb4 Bh7 Rb5 g8N Bg5 Bg6 Be3 Rg2 Bg1 Bd6 Qa5 Ne7 Rf8 Bb8 d6 Nc8 Qb4 Rf2 Qa3 Rd2 Qa1 Rd1 Ka2 Re1 Nd7 c5 Nb6 Qg4 Nc4 Qg3 Re8 f8B Nb2 Bh6 Rf8 Bhd2 Bc2 Rd1 Qb1 Be1 Ka1 Qg5 Bb3 Be8 Bc4 Ne7 Bc8 Qg8 Bh3 Nc8 Bg2 Bed2 Bh3 Rdf1 Bg2 Be1 Qa2 Rf7 Qb3 R1f2 Qd1+ Ke3 Qf3+ Kd2 Qh3 Rg7 Qh1 Ke2
1rB1BR1b/p2K1R2/r2n3r/PR5p/QNn1kppq/2P4R/4NP2/2Rbb1B1 b - - 0 1 illegal: No proof kernel
Br2b1q1/KN2B2R/1p1p3p/1R1n2b1/2rP1RQ1/1PpRR2P/n3r1NN/4k2n b - - 2 3 illegal: No proof kernel
1BK3R1/p1bn1pq1/P1Rp1PrQ/5qRB/1NnBp1q1/r3PR2/1N3R2/bk6 b - - 0 3 legal: proof: d4 h5 g4 hxg4 b4 c5 dxc5 b6 c4 Bb7 b5 Bc6 bxc6 Rh7 Ba3 Rh5 Bc1 Rh8 Kd2 g5 Kc3 e5 Kb4 Ke7 Kb5 Ke6 a4 Kf5 f4 Ke4 h4 g3 c7 g4 c8R g2 c6 g3 h5 Na6 c5 Bh6 c7 Qe7 a5 Qd6 f5 Rb8 c6 Bd2 h6 Bf4 h7 Nb4 a6 Nd5 Nh3 g1Q Na3 g2 Rh2 Ra8 Nc4 Ne3 Nb2 Qg6 Ra3 Bg3 Qd6 Qg4 Nf4 Nf6 Rg8 Nc4 Rg5 Rag8 c8R Rg6 c7 Qd4 Qf8 g1B Qh6 Qc3 Nd5 Bd4 Ra8 Bf4 c8R Qcg3 Nd3 Ba1 Rc6 Rb8 h8B Qg2 Kb4 b5 Kc5 b4 Nb2 b3 Nb4 Rd8 Kb5 Kd4 Be3+ Kc3 Bd4+ Kd2 Kc5 Kc1 Bg7 Rh8 Rg8 Kb1 Kb5 Q2g3 Rf2 e4 Bg2 Bc7 Bf3 Rh7 Bf8 Q3f4 Be7 d6 Bd8 Nd7 f6 Qe6 Bh5 Qfg4 Rcc5 Qe5 Kc6 Qef5 Kb7 Rhg7 Rc6 Rh7 Nd1 b2 Rg3 Kc1 Rh3 b1Q Rhf3 Qc2 Kc8 Kb1 Nb2 Qc3 Bc5 Qce5 Be3 Qe8 Bd4 Qf8 Rh8 Qg7 Rg8 Bb8 B8b6 Bc7 e3 Rh8 Rd8 Re8 Ba5 Re5 Bab6 Ra5 Rg8 Bd8 Bc7 Ra3 Bb8 Ba5 N4d3 Bc7 Nb4
2K5/1R4p1/5n1n/B1pN1BB1/Rp1rp2b/2q1nQ1r/B1P1P1P1/bqR2BkN b - - 2 3 illegal: No proof kernel
QBn3B1/4RK1b/1BNpP3/1pp2bq1/1r2p2k/4bq2/1P1NPN2/rBRn3B b - - 0 1 illegal: No proof kernel
1b6/bR3K1b/1p1Nn1Rr/2kR2RP/p2pn2Q/1B2qp2/1PNP3R/Nq3rB1 b - - 0 1 illegal: No possible last move, all moves rejected
2RBnr1B/kr2bB1n/1R5N/p2p3p/P1RRp3/1p1qb3/2QRP2P/1N2K1b1 b - - 2 3 legal: proof: d4 f5 g4 fxg4 b4 c5 dxc5 b6 c4 Bb7 b5 Bc6 bxc6 Qc8 Qa4 Qc7 Qd1 Qd8 a4 a5 f4 h5 f5 d5 c7 Kd7 c8R e5 f6 g5 f7 e4 Nf3 g3 Nd4 g4 Bg5 g2 Qc2 g1B Rc6 b5 Bh3 b4 Nf5 g3 Ra2 g2 Rb6 Kc7 c6 b3 c5 Na6 Nh6 Be7 f8B Be3 Be6 g1B Bg7 Nf6 Bf7 Rf8 Bh8 Ra7 Rb2 Kc8 c7 Nh7 Bgf6 Qd6 Bh4 Kd7 c8R Rb7 Ra2 Qf4 c6+ Kd6 B4f6 Nc7 Rb2 Ne8 c7+ Kd7 Bh4 Qf3 Ra2 Bd6 Bd8 Ba3 Qd1 Be7 Rd2 B3c5 Qc2 Qd3 Ra8 Bcd4 c8R Bde3 Rc4 Bd4 Rac8 Bde3 Rbb4 Kd6 Rd4 Kd7 Rcc4 Kd6 Rb6+ Kd7 Bc7 Kc8 Bd8+ Kb8 Rc8+ Ka7 Rdc4 B3g5 Rd4 B1e3 Rf1 Bg1 Rff6 Bf4 Rfc6 Bfe3 Rcc4
n2q4/3b1N2/2Pr1qbN/1N1rnBP1/2R5/1kqnP2K/Q2BR1B1/1r2R2R b - - 0 1 legal: proof: d4 b5 h4 e5 g4 g5 a4 c5 axb5 cxd4 f4 f5 fxe5 Be7 gxf5 g4 Bf4 Bg5 hxg5 Bb7 Bc1 Bc8 Kf2 Ke7 Kg3 d5 b4 h5 c4 a5 e6 Kd6 e7 d3 e8B a4 e3 d2 f6 h4+ Kh2 h3 b6 a3 b5 Kc5 f7 Kb4 f8R a2 c5 d4 c6 d3 b7 Ra5 b6 Na6 b8N Ne7 b7 Rh6 Rh8 Nc7 Rf8 Bd7 Qe1 Kb3 Kg3 d1Q Nf3 d2 Nc3 h2 Bg6 Na8 Qe2 Qc2 Rf4 d1B Nb5 Qc3 Bg2 Bc2 Bf5 Rd6 Ne5 Ng6 Nf7 Ne5 Rc4 Bd3 Kh4 g3 Nh6 Bc2 Re1 h1N Bd2 Nf2 Rad1 Nfd3 Kh3 a1Q Rc1 Bc8 Nd7 Qab2 b8R Bb1 Nf6 Bd7 Nf7 Bc2 Ng4 Qa1 Bf3 g2 Ngh6 g1R Qh2 Qab2 Re2 Rd1 Bg2 Ra1 Rb7 Rb1 Rb6 Qd4 Ra6 Qbc3 Ra1 Qf4 Be6 Qff6 Bf5 Rf1 Rd1 Rf4 Rh1 Rfd4 Qf4 R4d5 Qd4 Rb2 Rae1 Rb1 Qa7 Nc5 Bg4 Bg6 Bf5 Ncd3 Qa2+
2qN1b2/2R1b1P1/r6R/1B1Brk1B/Pn3n1Q/3P1R2/b4R1N/2q1bKbN b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 h6 g4 Bg7 g6 Bf8 g7 Qd7 Kf2 Qd6 Ke1 Qd8 g5 Na6 g6 Rh7 Bb2 Rh8 Bf6 Nb8 Bg5 hxg5 a4 Kd7 h4 e5 d6 c5 f6 Ke6 d7 b5 a6 e4 a7 e3 h5 c4 h6 c3 h7 g4 f7 c2 Nc3 c1B Ra2 b4 Bb5 g3 d3 b3 Qh5 g2 Qh4 b2 Nf3 g1B Ne4 b1Q Nh2 e2 Nf2 Nf6 g8B Nh5 g7 Nf4 Rb2 Qc7 d8N+ Kf5 Rc2 Ba6 Rc4 Qc8 Rc7 Be7 f8R+ Ke5 Nf1 Nc6 Bd5 Nb4 Rh3 Bb7 Bf7 Kf5 Nh2 Bd5 Nh1 Ba2 Rf3 Rg8 h8R Ba3+ Kd2 Qa1 Rh6 Rh8 Rf2 e1B+ Ke3 Rg8 Kf3 Qc1 Bh5+ Bf6 Rff7 Re8 Kg3 Re5 Kf3 Rb8 a8B Rb6 Bd5 Ra6 Kg3 Nc2 Kf3 Bf8 Kg3 Nb4 Kf3 Ne2 Kg2+ Nf4+ Kf1 Rd6 Rcc2 Ra6 Rfc7 Bg5 Rf3 Bge7 Rcf2
1B3qBK/1qPB3N/bk3B2/NP3Rb1/2n2Rq1/r2q4/PR1QN2q/3rn3 b - - 0 1 legal: proof: e4 c5 h4 g5 hxg5 a5 b4 f5 exf5 b5 d4 cxd4 Bxb5 a4 Bf1 a3 b5 Ra4 Bxa3 Ra7 Bc1 Ra8 Kd2 h5 Kd3 d5 g4 Kd7 f4 Kc7 c4 e5 c5 h4 c6 h3 f6 h2 f5 Rh4 f7 Qd7 g6 Rh7 g7 Kb6 g5 Be7 f8B Na6 f6 Qb7 g6 Nh6 g8R Nf5 g7 Ne3 f7 Nc4 Bb2 Bg5 Qd2 Rh4 Bh3 e4+ Kc2 e3 Kd3 e2 Na3 e1Q Ne2 Qf1 Rb1 Rh6 Bd7 Rd6 c7 Qf4 Rhf1 h1Q Ba1 Qf6 Rb2 Qh2 Rf4 Qd8 Be7 Qf8 Bf6 Ra7 Rh8 Ra8 g8B Nc5+ Kc2 d3+ Kc3 Ra4 Kd4 Ra7 Rh5 Ra4 Qc3 d2 Qb4 d1Q+ Qd2 Qe8 f8N Nd3 Nh7 Qf8 Nc1 Ne1 Ne2 Bh4 Rhf5 Bg5 Nc2 Ra7 Nb4 Ra3 Nc6 Qb3 Na5 Qbg3 Rb1 Qg4 Bc3 Nb2 Ke5 d4 Bb4 d3 Bc3 Rd4 Ke6 Nc4 Rb2 Qfh6 Kf7 Qf8+ Kg6 Rd5 Qc1 d2 Bcd4+ Qc5 Kg7 d1Q Kh8 Qd3 Bg1 Rd4 Qd2 Qf8 Rb1 Qbh1 Rb4 Ba6 Rb2 Qb7 Qc3 Ka7 Nc1 Qe3 Ne2 Rd1 Qd3 Qbb6 Qd2 Qd3 Nb3 Kb7 Bc5 Qc6 Ba7 Qcd5 Bb8 Kb6 Na5 Q5f3 Ng3 Qb7 Ne2
KR2N3/1P1kR2r/P1rqb3/1n3n2/1NBnBbP1/3r4/q2B4/2R1NBQr b - - 0 1 illegal: No possible last move, all moves rejected
bqk1B1b1/P1N3rb/1B1P1R2/1qR2QB1/4PK1B/6nN/2qN4/1n1bb1R1 b - - 0 1 legal: proof: c4 b5 g4 g5 h4 f5 f4 d5 cxd5 e5 fxe5 a5 gxf5 g4 b4 axb4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bg7 Na3 Bh6 Nb1 Bf8 Kf2 Kd7 Kg3 h5 a4 c5 d4 b3 g6 h4+ Kf4 b4 a5 g3 e3 b2 d6 c4 d5 c3 f6 h3 f7 c2 a6 h2 g7 b3 a7 g2 Ba6 Rh7 Ne2 g1Q Bd3 Nc6 Bg6 Nge7 g8R Na5 Ra2 Rg7 Nd2 b1B Qf1 Nc4 Ra5 b2 Rc5 Ba2 Qf2 Qf1 Rg1 Qc7 e6+ Kd8 Rh8 h1B Rh6 Nf5 e7+ Kd7 e8N b1B Qf3 Qb8 Nc7 Na3 Bh5 Kd8 d7 Ng3 Rf6 Bb7 Bg6 Ba8 Qf2 Be7 f8B Bf3 Be8 Bc4 Rfc6 Bh4 Rf6 Bb3 Bd6 Bh5 Be5 Bf7 Bd4 Bg8 Qf3 Bh7 e4 B1a2 Bf2 Nb1 Qh5 Ba4 Qf5 Bc4 Kf3 Bcb3 Nf4 Qfb5 Nh3 Ba2 Kf4 B4b3 Bb2 c1Q Bbd4 Bd1 Be1 Qc2 Bef2 Nf1 Bfe3 Be1 Bf2 Bc4 Bh4 Bce2 Bg5 Bh5 Bf2 Bf7 Bfh4 Ng3 Qg6 Be6 Qf5 Ke7 d8B+ Kd6 Bg6 Kd7 d6 Kc8 Bf7 Qd7 Be8 Beg8 Ne6+ Qc6 Bc7 Qd5 Bb6+ Qc6 Nc7+ Qd7 Re6 Qb5 Rf6+
1Kn2BN1/2P4B/QRk1r1B1/1b2Pq2/q6q/N1N4n/bbRbP1q1/1R4N1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 a5 Kg3 h5 Kf4 f5 g4 d5 c4 Kd7 b4 a4 c5 d3 b6 d4 b7 d2 g6 d3 g7 h4 b5 a3 b6 h3 g5 a2 g6 h2 Qe1 d1Q Nc3 d2 Bh3 Nc6 b8R Nb4 b7 Ne7 g8B Nd3+ Kg5 Nf4 Kf6 Bh6 g7 Qa4 Rb1 a1B Ba3 d1B Bh7 Bb2 g8N Ra6+ c6+ Kc7 Bg2 Be6 Be4 Nh3 Bc5 f4 Beg6 f3 Ba3 Kb6 c7 f2 Rc1 Bd5 Rc2 Bc6 Ke6 Nc8 Bf8 f1Q Qh4 Bb5 Qc4 Qh4 Qd3 Ka7+ Qd6 Rc6 Kd7 Kb6 Qa3 Bd2 Qa2 Ne7 Kd8 Re6 Qa3 Nd5+ Kc8 Qf5 Qa1 Kc6 Qa2 Qa8 Qa7 Qa4 Qa6+ Nb6+ Kd8 Qc4 Bf7 Qa4 Nf3 Rg6 Rc1 Bb3 Rc2 Nf2 Rb1 h1Q Ng1 Rh6 Bh5 Ba2 Bf7 Qa7 Bh5 Qfe4 Bf5 Qeg2 Bf7 R8h7 Bh5 Rf7 Bh7 Re7 Bf7 Kc5 Bh5 Nd7 Kc8 Qhh4 Be8 Rd6 Beg6 Qb6 Ra8 Nh3 Ra7 Kc6 b8N+ Kc5 Rcc1 Rf6 Rb7 Qe6 Nc6 Nb6+ Kb8 Qf5 Na5 Nc8 Nc4 Rb6 Rc2 Kc6 Na3 Re6 Rxb6+
1q1kB3/R2Rr2n/PR5B/3Q2r1/1nn2P2/NK2RP2/1p1Bb3/bNr1q2N b - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 f5 b4 axb4 e3 h5 gxh5 f4 exf4 Rh7 Ne2 Rh6 Ng1 Rh8 a4 b5 h4 c5 d4 e5 Kd2 g5 Kc2 c4 a5 c3 h6 e4 d6 g4 d5 g3 f3 e3 d7+ Ke7 h7 e2 h5 e1N+ Kb3 g2 h6 c2 Bd2 c1R Ne2 g1Q Ng3 Nf6 a6 Bg7 Ra3 Re8 h8B Ng2 h7 Ne3 Rh6 Nc6 Nh1 Nc4 Bh3 Qc7 d8N Bd7 Ne6 Qe1 Nd4 Kd8 d6 Re7 Nc2 Be8 Bf5 Qd7 Bg6 Ra7 Bf7 Re5 Bh5 Rg5 Rg6 Bf7 Rh6 Be6 Be8 Bh3 Rg6 Bf1 Rh6 Be2 Rg6 Bh6 Bg7 Rb7 h8R Nh7 Bf8 Bg7 Rg8 Ba1 Bh6 Qe6 R8g7 Re7 Ka2 Qd7 Re3 Nb6 Rf7 b3+ Ka3 b2 Kb3 b4 Nca3 Nc4 Rge6 Qc8 d7 Qb8 Bc3 Qa7 Qd5 Qc7 Bd2 Qb8 Ka4 b3 Rg7 Nb4 Rb6 Kc7 d8R Qa7 Nc3 b1Q Rdd6 b2 Rf7 Qf5 Kb3 Qb8 Ncb1 Qfc8 Rff6 Qcb7 Rd7+ Kc8 Rfd6 Qc6 Rdb7 Qd7 Ra7 Kd8 Rdxd7+
Bq5B/1bR2P1b/5n1k/n1NnRr2/2p2Nq1/RPP2N2/1KRq3B/5rQ1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 e4 Ng8 exf5 Qg5 Bf4 Qe7 Bc1 Qd8 h4 g5 f4 gxf4 g4 Bg7 g5 Bf6 g6 Bg5 hxg5 Qf6 Ra2 Qe7 Ra1 Qd8 Kd2 Kf8 Kc3 Kg7 b3 d5 e6 c5 b6 h5 b7 a5 e7 c4 e8R h4 Qg4 a4 Re1 f3 Ne2 f2 Rh3 d4+ Kb2 d3 Nf4 d2 Qg1 d1Q Ra3 Nc6 b8B Rh5 Bg2 f1N Rc3 h3 Re5 h2 Nd2 h1B Nf3 Nf6 Be3 Q1d5 Bd4 Ne3 Bd6 Na5 Bc7 Kg8 g7 Kh7 g8N Bb7 g6+ Kg7 Bd6 Qb8 Bc7 Qdd8 Bd6 Ned5 Bc7 Nd7 Nf6 Kh6 Ne4 N7f6 g7 Qd6 g8R Qb4 Re3 Qd2 Nc5 Ra6 Re7 Re6 Rc3 Re1 Rgg7 Rd1 Re5 Rf1 Ne1 Rg5 Be4 Bg2 Nf3 Bh3 Bd6 Bg4 Rc7 Bh5 Re3 Bg6 Re2 Bh7 Rf2 Ne8 f6 Rf5 f7 Nef6 Ra1 Qe3 c3 a3+ Kc2 a2 Kb2 Qe1 Rc2 Qd2 Ree7 Nh5 Bh8 Nhf6 Re5 Qe8 Ng5 Qe1 Ka3 Nb4 Nfh3 R5f4 Re6 Bc8 Rd2 Rf5 Ba8 Nd5 Bh2 Bb7 Nf4 Qb8 Re5 Qg3 Nf3 Qg4 Rc1 a1Q+ Ra2 Qb1 Rcc2 Qe1 Kb2 Qd2 Ra3
qn4q1/1P2bq2/P1PN2R1/bRR4N/QbN5/2BB4/2rNKnp1/k4rB1 b - - 0 1 illegal: No possible last move
1KbBN3/r7/3nB1n1/P3Nqpb/1B1RR1n1/N3PP2/k4R1n/3RQ1rr b - - 0 1 illegal: No possible last move
1Qqk4/B6n/r5RB/3bK3/N2P1n2/P2bpBBR/N1R1bP1r/1q1N2b1 b - - 0 1 legal: proof: e4 d5 b4 a5 c3 d4 cxd4 axb4 g4 f5 exf5 h5 gxh5 c5 d3 c4 dxc4 Qd7 Bh3 Qd6 Bf1 Qd8 Kd2 g5 Ke3 b5 Ke4 e5 h4 b3 h6 b2 h5 g4 h7 g3 f6 g2 h6 b4 c5 b3 f7+ Ke7 a3 Ra6 c6 Bh3 c7 Ra8 c8N+ Kd7 Be2 Be6 Ra2 Nc6 Rh3 Ra6 Bf3 Nce7 Ne2 g1Q Nbc3 b1B+ Rc2 b2 Na2 Ng6 Nec3 Bd6 f8B Nf4 Nb6+ Ke8 Bd2 Qc8 Nba4 Kd8 Be3 Bc7 Bc5 Bc4 Rg3 Be2 Rg6 Bb8 Ba7 Qf1 Nb4 Ba2 Qb1 Bd6 Bc1 Qh1 Nd1 Bd5+ Ke3 e4 Na2 Nf6 Bd2 Rf8 h8B Nh7 Be5 Rf5 Bc1 Rh5 Bd2 Rh2 Bc1 Nf8 h7 Qe1 h8R Bb8 Rhh6 Nh7 Rh3 Qf1 Qa1 b1B Qb2 Bd6 Qb8 Qe1 Rc7 Bbd3 Rc4 Qb4 Rc2 Qb1 Bd2 Ne6 Bg3 Nf4 Bb4 Bc7 Bf8 Bd6 Bh6 Bc7 Kd2 e3+ Kc3 Qc1 Kb4 Qb1+ Kc5 Nh5 Rf6 Rh1 Bh4 Bh2+ Rc6+ N5f6 Bg3 Bg1 Kd6 Rh2 Ke5 Nh5 Rb6 Nf4 Rg6
N1n5/QKR3rP/3RRr1N/8/P2bpqB1/R1P2N1r/r3k1r1/n1B3Bn b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 h5 Nc3 f5 exf5 c5 Nb1 c4 Ba3 c3 dxc3 Ra5 Bc1 Ra8 gxh5 b5 Ba3 b3 Ne2 b2 Qc1 b4 Nd2 b1N Ng1 b3 Qd1 Bb7 Bc1 b2 Bc4 Bd5 Bf1 Bb3 cxb3 Qa5 Bd3 Qb6 Bf1 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Kd5 Kf4 a4 e5 h4 g5 h6 g4 h5 d6 h7 e4 f6 g3 h6 g2 f7 Qf6 b4 Ra7 b5 Rb7 b6 Nd7 Kc6 Na3 Be2 b1R Bg4 Rb5 Ngf3 Bg7 f8B Rf5 Qg1 Nc2 Ra3 Ra7 b7 Nc5 b8R Na1 Rd8 d5+ Rd6 d4 Re6 d3 Nc4+ d2 Nb6 Qg5 Na8 Nd3 Bc5 Rf6 Rh5 Qh4 Rd5 Ne7+ Kb6 Qh2 Rdd6 Nc8+ Kc6 Rb7 Bd4 Rb2 Kc7 Rg8 h8N Ra2 Nf7 Bh8 h7 Rg7 Kb7 Qh6 Qh1 g1R Qh5 Rg2 Qc5 Qg5 Qa7 Qh6 Rd7 Qg5 Rc7 Qe5 Nh6 Qd6 Bb2 d1R Bc1+ Rdd2 Bc5 Rg3 Bd4 Rh3 Bf5 Rf8 Nh2 Rgf7 Bg4 Bf6 f3 Rg7 Bg1 Qe5 Rd6 Nf2 Re6 Nh1 Rd6 Kg3 f4 Kg2 f5 Qf4 Nf3 Bd4 f6 Kf1 f7 Rdc2 Ne5 Rg2 Nf3 Re8 f8R Re6 Rfd8 Rf6 Re6 Ke2 Rdd6
R1Q2N2/2bb2k1/N1N3p1/1B1qRn2/1PqR4/1P1Pn1q1/K3Br2/2b1q1BR b - - 0 1 legal: proof: e4 b5 a3 f5 exf5 b4 axb4 d5 Ne2 d4 Ng1 d3 cxd3 Qd6 Ra5 Qd5 Ra1 Qd8 g4 c5 g5 a5 g6 c4 Ke2 c3 Ra3 c2 Ra2 hxg6 Ke1 g5 Ra3 g4 Ra1 Ra6 Ke2 Rc6 Ke1 Rc3 dxc3 Rh5 Na3 Rh7 Nb1 Rh8 Kd2 Kf7 f4 e5 h4 a4 c4 g6 Kc3 e4 c5 g3 c6 e3 h5 e2 c7 e1B+ Nd2 g2 h6 a3 Kb3 a2 h7 Ba6 c8B Bd6 f6 Kf8 f7 Qh4 f5 Qh5 Be2 Bh2 Bd7 Bb7 Ne4 Bc3 Nf3 g1Q Bb5 Bd2 Ne5 Ne7 Nc6 Na6 Nc5 Nc7 Na6 Kg7 f8R Bc8 Re8 Rf8 h8R Ncd5 Rd8 Ne3 Rd4 Qhg5 Rh5 Bd7 Qf1 Bc7 Qh3 Q1g3 f6+ Kg8 f7+ Kg7 Ka3 Qd5 b3 N7f5 Bb2 c1Q Rg5 Rg8 f8N Qcc4 Rh5 Bc1 Rg5 Nd6 Re5 Rh8 Qe6 Rh2 Qe8 Ndf5 Qc8 Rf2 Rde4 Bd2 Bd4 Ng4 Bb6 Bh6 Rd4 Nge3 Rab1 Bf4 Rb2 a1Q+ Ra2 Qac3 Raa1 Qc1+ Ka2 Qe1 Ka3 Ng4 Nab8 Bg5 Rf4 Rh2 Bg1 Bh6 Rd4 Rf2 Kb2 Bd2 Ra8 Nge3 Na6 Bc1+ Ka2
1Br5/2NR1NPb/2qNRR1n/2Bq2bK/b3P1B1/1p2rq1b/P1R3Q1/3k4 b - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 h4 d5 cxd5 e5 fxe5 Nc6 b3 Nd4 b4 axb4 gxf5 g4 Nc3 Ne6 Nb1 Ng5 hxg5 Qe7 Rh6 Qd6 Rh1 Qd8 Kf2 Kd7 Kg3 c5 Kh4 h5 d4 b5 f6 g3 e6+ Kd6 e7 g2 e8R c4 f7 b3 Nh3 g1Q Nc3 b2 Nf4 b1B Qd2 b4 Ne6 b3 Bh3 Bd7 Nc7 Qf1 Rh2 Qf3 Bg4 Be7 f8B Bh7 e4 Rc8 Qg2 Ba4 Be3 Qd7 Rf1 Nh6 Bg7 Qc6 Bf6 Rg8 g6 Qb5 Kg5 h4 Kh5 h3 g7 Rh8 Bh4 Bg5 Rf2 Rf8 Bg3+ Rf4 Rc2 Qb7 Rh1 h2 Rf1 h1B Bef2 Qd1 Re5 Rf3 Bg1 Re3 Re6+ Kd7 d6 Kc6 d5+ Kc5 d7 Kd4 d8R Kd3 d6 Qd5 d7 Qf3 N3b5 c3 Qf2 Bg2 Nd6 Bh3 Qg2 Re1 Bc5 Re3 Re2 c2 Be5 c1Q Rc2 Qe2 Rf7 Qed1 Rdf8 Qf3 d8N Qa3 Rd7 Qc1 Rf2 Qcc4 Rff6 Qb5 N8f7 Qbb7 Bc3 Qbc6 Bd2 Kc2 Ba5+ Kd1 Rc2 Qc4 Bab6 Qd4 Ba7 Qdd5 Bb8
KR1B4/NB3RBn/rNnPP3/Pp2r3/k4Q2/3b3n/2R1rN2/1rb2B1b b - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 gxf5 d5 cxd5 e5 fxe5 g4 h4 Qg5 b4 axb4 hxg5 Bd6 Na3 Bc5 Nb1 Bf8 Kf2 Kd7 Ke3 h5 Kd4 b5 a4 h4 e4 b3 a5 c6 f6 g3 f7 b2 g6 h3 g7 h2 d6 g2 Kc5 Rh3 Kb6 c5 d4 c4 e6+ Kd8 d7 c3 e5 c2 d5 Ne7 g8R Nbc6 Na3 b1R Nc4 Nf5 Qd4 Nb4 Qf4 Ne3 Ra2 Rh5 Nh3 g1N Nf2 Ke7 d8N Nc6 Rb2 Bd7 Kb7 Ng4 Be3 c1R Bb6 Rd1 Rc2 Bh6 Rg7 Re1 f8B+ Ke8 e7 Bf5 d6 Kd7 Bc7 Ra6 Rf7 Bd3 Bg7 Nh3 Rg1 h1B Rg3 Na7+ Nc6 Nf6 Bd8 Re2 Ka8 Nh7 e8B+ Ke6 Rg1 Kd5 e6 Kc5 Bd7 Rd5 Bc8 Rde5 Bb7 Bg5 Ne7 Kb4 Nc8 Nc6+ Na7 Kb3 Rg4 Ka4 Rh4 Nf6 Rh8 Bh6 Bc7 Bg5 Rb8 Nh7 Bd8 Bh6 Qh2 Be3 Qf4 Bc1 Nb6+
k1n1r3/2B1qR2/PNPn2B1/2RP4/1n1N2K1/1pR2n2/3rN1R1/q2qBQ1n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 gxh5 d4 Nc3 c5 Qe2 b3 Qe4 Be6 Nf3 Bd5 cxd5 e6 Qd3 c4 Ng1 Bb4 Nb1 c3 Qe2 c2 Qd1 Bc3 dxc3 Qf6 Bh3 Qe7 Bf1 Qd8 Ke2 Kd7 Kf3 Kc7 a4 b5 h4 Kb7 f6 g5 c4 b4 a5 e5 c5 e4+ Kg4 b2 f4 e3 h6 d3 f7 d2 f8R b3 a6+ Ka7 h5 e2 h7 e1Q c6 Qd7+ f5 Qe2+ Nf3 Qe5 h6 Qde7 f6 Nd7 f7 Re8 Rg1 Nb6 Bd3 Ka8 Rg2 Nc8 Ra5 Nd6 Qf1 d1N Nc3 b1Q Ne2 Qea1 Bf4 c1N Bg6 Na2 Rc5 Nb4 Nfd4 Qd3 Bg3 Qc2 Be1 Nf2+ Kf3 g4+ Kg3 Nf6 Kf4 Rg8 h8R g3 h7 Nd7 Kf3 Nh1 Kg4 Rg7 Rhg8 Nb6 h8B Rh7 Be5 Rh2 Rh8 Qcd1 Rh3 Nbc8 Bf4 Nf5 Bc7 Nfd6 Rf2 g2 Rhc3 g1N Rg8 Rh7 f8N Rf7 Nd7 Nf3 Rf8 Rf5 Rg2 Re5 Rf4 Re3 Rf8 Rd3 Rf7 Rd2 Nb6+
3Rk1Nq/NPb2rRr/2pb2q1/P4b2/1PRQ4/B1qRK3/B7/B1rbN3 b - - 0 1 illegal: No proof kernel
1BB2N2/2b5/PNr4p/nb1Qn3/Rb1Pn1BK/3n4/1RNPnB1k/2R1n3 b - - 0 1 legal: proof: e4 f5 exf5 d5 g4 a5 f4 d4 b4 axb4 f6 d3 cxd3 Nd7 d4 Nb8 f7+ Kd7 h4 b5 f5 Ra6 g5 Rf6 Bd3 g6 Bf1 Na6 gxf6 g5 Qf3 g4 Bc4 g3 Qd1 Nb8 Bf1 Kc6 Bh3 Qd6 Bf1 Qf4 Be2 Qg5 hxg5 Kd6 Bf1 Kd7 a4 c5 g6 e5 a5 g2 Kf2 b3 Kg3 e4 g7 c4 a6 b4 Qc2 c3 Be2 e3 Bb5+ Nc6 Be2 h6 Bd3 e2 Bc4 e1N Kh4 b2 Ne2 g1B Na3 b1N Nf4 b3 Nd5 b2 Be2 Bb4 f8B Nge7 g8B Bh2 f7 Ne5 f6 Ke6 Qb3 Kf5 Nc2 N7c6 Ra4 Bd7 Bd6 Na5 f8R Bb5 Nb6 Kf4 Rb8 Rh7 Qa2 Rc7 Bg4 Rc6 Bc8 Kf3 f7 Kg2 f8N Bf4 Rg1+ Kh2 Qd5 Bg3+ Kh5 Bf4 Bge6 Bg3 Bg4 Bf4 Ne3 c2 Kh4 Nc3 Bc7 b1N Ba3 c1N Nc2 N3e2 Rb7 Rd6 Bb8 Ncd3 Rf1 Rc6 Rg1 Bc3 Be7 Bb4 Bg5 Nbc3 Bd8 Nf7 Bg5 Bfd6 Be3 Bc7 Bf2 Nfe5 Na1 Nc2 Rc1 Nce1 Nc2 Ne4 Ra7 Bcd6 Rf7 Bc7 Rf3 Ndf4 Rb3 Nfd3 Rb2
2N1R1k1/P3r2r/2B3Pr/2Nn2Rp/4Bn1Q/2Nn1b1R/4P2B/KnnR1r2 b - - 0 1 illegal: No possible last move, all moves rejected
1K1B3b/1P3N1B/QrP2N1B/2q1kb2/1Pn1pp2/4nR2/5Nq1/rRr3RN b - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 gxh5 g5 fxg5 c5 a4 Bh3 axb5 Bc8 e4 cxd4 exd5 Be6 Qd2 Bd7 Qd1 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 e5 b4 f5 h4 a5 b6 a4 Kb5 d3 c4 a3 c5+ Kd7 c6+ Kd6 b7 a2 h6 d2 g6 Qc7 h5 Rh7 g7 Qe7 Kb6 Rh8 h7 Qg5 h6 Qe7 Bd3 Bd7 Qe2 d1Q Nc3 Bc8 Rb1 a1R Nh3 Qf7 Nf2 Qf1 Ncd1 Qh5 Rg1 Ne7 g8N Qg2 Nf6 Bg7 Nh1 R8a2 Bg5 f4 Ndf2 Bf5 Be4 Rg8 Qa6 Nd7+ Ka7 Nb6 h8R Nc4 h7 Re8 Rg8 Bh8 Bh6 Ra5 Bc2 Rb5 Rg3 Rb6 Rf3 Rg8 Be4 Rg3 Kb8 Rh3 Ra3 Rc3 Rab3 Rc1 Rf3 Bg4 Bf5 e4 Bg6 Ke5 d6 Bf5 d7 Nd5 d8B Bg7 h8N Nde3 Bh7 Qhg5 Ne8 Qe7 Nf6 Qc5 Bg6 Kd4 Nf7 Bh8 Ng5 Ke5 Bh7 Kd6 Nf7+ Ke6 Nd6 Ke5 Nf7+
1N2bn1K/4PrQ1/PB1R1bR1/pk1BBP1N/6qN/1p4r1/2b2n1b/3R2R1 b - - 0 1 illegal: No proof kernel
2NR3B/3N1p2/2K1n2k/P2N2BB/PR2rPbQ/1q1r2n1/p1N1n3/n4n1R b - - 0 1 legal: proof: g4 d5 c4 h5 cxd5 e6 gxh5 Qf6 d4 Rh6 e3 Qd8 d6 Rh8 d5 Be7 a4 b5 Qd3 Bf6 b4 a5 bxa5 b4 Qa3 Bd4 exd4 bxa3 Ke2 Kf8 Kf3 c5 Ke4 g5 h4 Kg7 d7 e5 d6 g4 Kd5 c4 h6+ Kg6 h7 e4 Ne2 g3 Nbc3 g2 Rb1 g1N Bg5 e3 f4 a2 Rb4 Na6 Kc6 Nf6 d5 Ng4 Nd4 e2 Nc2 e1N Be2 Re8 h8B Nc5 h5+ Kh7 h6 Nh2 Bg4 Ne6 Bh5 Qf6 d8Q Ne2 d7 Nf1 d6 Neg3 Nd5 Qc3 Qe7 Qb3 d8N c3 Nb7 Ra7 Nc5 Rd7 Qf6 Rdd8 d7 Re7 Na1 Ree8 Qe7 c2 Qf6 c1N Nc2 Nce2 Qe7 Rg8 Qf6 Rde8 d8R Rg6 Nd7 Rgg8 Nce3 Nc2 Qe7 Na1 Nc2 Nc5 Qe6 Rgf8 Qg4 Re4 Qh4 Rfe8 N7b6 Bg4 Nc8 Kg8 h7+ Kf8 Bhf6 Ne6 h8N Kg8 Bb2 Kh7 Ng6 Re3 Bh8 Rd3 Ne5 Re7 Bgf6 Kh6 Nd7 Ng5 Nf8 Re4 Nd7 Ne6 Bg5+
k2RN2Q/2n2KPq/BpB5/1rN3PR/P2r1B1r/2n3pR/5Bnn/1bN5 b - - 0 1 illegal: No possible last move
1rq5/B1Rb2Np/1P3P2/1B2pkB1/bQN1rN1q/7b/1R1P4/NR2n1bK b - - 0 1 legal: proof: g4 d5 e4 g5 a4 b5 axb5 f5 f4 d4 h4 d3 cxd3 Qd6 d4 Qg6 d5 Nc6 Rh2 Nd4 Rh3 gxh4 Rh1 Qg5 fxg5 f4 Kf2 Kd7 Ke1 Nf5 exf5 Ke8 Kf2 Kf7 Kg2 a5 b4 e5 g6+ Kf6 b6 c5 d6 a4 b7 c4 b8B a3 g5+ Kg7 b5 c3 b6 a2 d7 c2 d8N Nh6 Ne6+ Kg8 g7 Kf7 g8N Ra7 Nd4 Ng4 Nf6 Nh2 Na3 Bc5 Nh5 Nf3 Ng7 Bd7 g6+ Kf6 Bb5 Ra4 Ba7 Rb8 Nb3 Re4 Ne2 Bg1 Rb1 a1Q Nc4 Qd4 Ba3 c1Q Rb2 Qcc3 Qb1 h3+ Kf1 h2 Kg2 Kg5 Na1 Kg4 Be7 Ne1+ Kf1 f3 Bg5 f2 f6 Qc2 Nf4 Qc1 Ne8 Kf5 g7 Qc2 g8R Qcc3 Rg7 Qh3+ Ng2 Qc5 Re7 Qh4 Nf4 Qc8 Rg7 Nd3 Kg2 f1B+ Kf3 Bh3 Rf7 Bg4+ Kg2 Bd1 Rg7 Ba4 Re7 Bd4 Rd1 Ne1+ Kh1 Bc5 Qd3 Bg1 Rdb1 Bc6 Rc7 Bd7 Qd6 Nd3 Kg2 h1B+ Kf1 Bf3 Qb4 Bg4 Kg2 Bh3+ Kh1 Ne1 Ng7+
r4NBk/2n1R2n/1prpr1q1/2R1qB2/3P4/B1R5/PN1Nr1PN/r1QK4 b - - 0 1 legal: proof: c4 Nf6 b4 Ng8 b5 Nh6 b6 axb6 Ba3 Ng8 Bb2 Ra5 Bc1 Ra8 h4 g5 hxg5 Bh6 c5 Bg7 c6 Bh6 cxb7 Bf8 f4 d6 e4 Bg7 e5 Bd7 e6 Be5 exd7+ Kf8 Qh5 e6 Qd1 Ke7 Bd3 Bc3 Bf1 e5 Kf2 e4 Ke1 Be5 fxe5 Qf8 Qh5 Qc8 Qd1 Qd8 d4 Kf8 e6 Kg7 e7 h5 e8R c5 g6 f5 Bc4 f4 Bf1 h4 Re6 c4 Qg4 f3 Qg5 c3 Qh5 c2 Bd3 e3 Qc5 e2 Nd2 h3 Ba3 h2 Rc1 Na6 b8N Qe7 d8N Rh6 Ndc6 Nc7 Nd7 Kh8 Nf8 Nf6 Na5 Nh7 Bf5 Qg7 Re7 Qe5 Rd1 c1R Nac4 Rc3 Nb2 Rc4 Rc1 Rc3 Nb1 f2+ Kd2 e1R Nf3 Ree3 Kd1 Re2 Nbd2 Rc2 Rg1 h1Q Nh2 Rc4 Rc3 f1R+ Kc2 Rb1 Rc1 Ra1 Qc6 Qf1 Qc5 Qff4 Kd1 Qg3 g7+ Kg8 Qa5 Rc6 Rc5 Rf6 Qc3 Re6 Qc2 Qg6 Qb1 Rc8 R1c3 Ra8 Qc1 Ng5 Nd7 Kh7 g8B+ Kh8 Nf8 Nh7 Rb5 Qd5 Ra5 Qe5 Rac5
5K2/Qq2RR1B/bn1p4/P1knN3/2p2R2/b1B1N1P1/qbnB1nNP/7R b - - 0 1 legal: proof: d4 a5 g4 b5 b4 axb4 c4 e5 dxe5 h5 gxh5 b3 Bh3 g5 Be3 g4 Bg2 g3 Bf3 b4 Bg2 Ra5 Bf1 g2 Bc1 Rb5 cxb5 Rh6 Bd2 Rg6 Bc1 Rg3 fxg3 Bg7 Nc3 Bh6 Nb1 Bf8 Kf2 Ke7 Kf3 f5 Kf4 c5 Kg5 c4 Kg6 d6 a4 b2 e4 b3 b6 f4 b7 f3 a5 f2 e6 Nd7 b8N Bb7 e5 Nc5 h6 Bc8 h7 Na4 h8B Bb7 Ne2 g1B Bd2 Nf6 Nd7 Qa8 Nbc3 b1N Nd5+ Ke8 e7 b2 Nef4 Nbc3 Bd3 f1N Ne3 b1Q Nfg2 Ba6 Qe2 Ng4 Qf2 Bh6 Bf6 Bf4 Kg7 Nd5 Bh7 Qab7 Ra3 Qa1 Rd3 Nab6 Rd4 Bg5 Rf4 Qb2 Nf8 Qa1 Ng6 Kd7 e8R Kc6+ Kf8 Kc5 e6 Qa2 Bfc3 Bf6 e7 Bh8 Ne5 Bf6 Qf3 Nf2 Rd8 Bh8 e8R Bf6 Rd7 Bh8 Nd1 Nfe3 Rdf7 Nc2 Ree7 Bf6 Qg4 Bh8 Qd7 Bf6 Nf3 Bd4 Nde3 Bh8 Ba1 Bb2 Ne5 Ba3 N3g4 Qc6 Be4 Nd3 Qc7 Bd4 N4e3 Nf2 Qa7 Qb7 Bh7 Bc3 Bb2 Bd4 Bbc1 Ba1 Bc3 B1b2 B1d2
1b1NqR2/3p2K1/p1p3R1/1n2P3/2nP1BR1/n2rB1PB/1k1rb3/R2N1N1Q b - - 0 1 legal: proof: f4 e5 a4 exf4 Kf2 b5 axb5 f3 Ke3 g5 Kd3 g4 Kc3 g3 hxg3 f2 b4 f5 b6 f4 b7 f3 gxf3 Nf6 b5 Bh6 b6 Qe7 Kd3 Qc5 c4 Bf8 Kc2 Qb5 cxb5 Ng8 Kc3 Kf7 Kd4 Kf6 e4 h5 d3 h4 f4 h3 f5 h2 Nh3 Ne7 Be3 Nd5 Nd2 Na6 b8N Nab4 b7 Nc3 b6 Bd6 Nc6 Rh6 b8B Ba6 Nd8 c6 Bg2 f1N b7 Rg6 Nf2 Nb5+ Kc4 Ke5 f6 Rg4 f7 Nc2 f8R Rg5 Bh3 Nca3+ Kb3 Rg4 Qc1 Rf4 Nd1 Rf2 Rg8 Rg2 Rg6 Bc7 Kb4 Re2 Kc5 Rf2 Bg5 Ne3 Nf1 Nec4 Be3 Rd2 Rg1 Nc2 Ra4 h1Q Qb1 Qf3 Rh1 Qf7 Ra1 Qg8 Rg4 N2a3 d4+ Kf6 Rh2 Qe8 Rf2+ Ke7 Rf6 Bf4 Be5 Rb8 Rfg6 Ra8 Bh8 Bb8 Be5 Rd3 B5f4 Rd2 Rg8 Kf6 R8g7 Rd3 e5+ Kf5 Qc1 Ke4 R7g6 Rd2 Qb2 Rd3 Qh2 Rd2 Qg1 Kd3 Qh1 Kc2 Nc3 Bc7 b8R Kb2 Ne6 Qf7 Rf8 Qe8 Nd8 Rb8 Ne4 Rb6 Nf2 Bb8 Rg7 Nc7 R7g6 Rb3 Nd1+ Kc2 Qd5 Rbd3 Qh1 Bb5 Qe4 a6 Qh1 Nb6 Kd6 Bc4 Nc3 Kb2 Nd1+ Kb3 Rg7 Ncb5+ Kc5 Bd5 R7g5 Bf3 Rg6 Nc7 Kd6 Be2 Rg7 Qh5 Ke7 Nbc4 Kf6 Ncb5 Rgg8 Qe8 R8g6 Kc2 Kg7 Kb3 Nc3 Kb2 Nd1+
1N3Q2/4n1R1/K1p2N1B/1B4Rp/2rbR1br/k4qPq/1P1B1qPp/N5R1 b - - 0 1 illegal: Other
1rBN4/1BR2K1p/2q2b2/1n1N1p2/2N1b3/pBPrP2R/4R1PQ/qq1k3B b - - 0 1 illegal: Other
1Brr1BK1/3RqBP1/1P1q2p1/1Q1N4/3r1pn1/1Pb2RN1/knN4p/1R4B1 b - - 0 1 legal: proof: c4 b5 h4 f5 a4 d5 axb5 e5 cxd5 f4 g4 g6 h5 Qd7 h6 Qg7 hxg7 e4 f3 Bf5 gxf5 exf3 Kf2 Ke7 d4 Kd6 e4 h5 b3 a5 e5+ Kd7 e6+ Kd6 e7 c5 e8N+ Ke7 b6 a4 Bc4 h4 Be3 h3 Nc7 Kd6 f6 a3 f7 a2 Qf1 h2 Na3 Na6 Rb1 a1R Nc2 Rd8 Ne2 Nh6 Ng3 Ra4 Qe2 Be7 Rhf1 Nb4 Qd3 Bf6 f8B+ Kd7 d6 Kc6 Bf7 c4 d7 c3 Nd5 Ng4+ Ke1 f2+ Ke2 Rc8 Kf3 Rg8 Qf5 Kb5 Ke4 Nd3 d8B Nb2 Bc7 Ka5 Bb8 Rh8 Rh1 f1Q Bg1 Qh3 Rf1 Qh4 Rf3 Kb5 Ne7+ Be5 Kd5 Rb4 Ke6 Rg8 d5 Rd4 Na3+ Kb4 d6 c2 d7 c1Q d8R Qd1 Rd7 Qd3 Nc2+ Kc3 Ne3 Kb4 Qh5 Ka3 Nc2+ Ka2 Qg5 Bf6 Qb5 Qd2 Nd5 Be5 Be7 Rgd8 Bf8 Qd3 Be3 Qd2 Rb1 Qg5 Bg1 Qb4 Be8 Qd6+ Kf7 Qge7+ Kg8 Rd1 Nde3 Bc3 Nd5 Rd4 Bf7
2r5/1RP1p2R/1Nbp1R1r/Q2N4/1Kp1q2k/PPn1B1N1/2q2N1q/2B2B1r b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 b5 b4 axb4 Ne2 b3 Ng1 b4 Na3 b2 Bg2 b1R Bh3 Ra5 Bf1 Ra8 Nh3 c5 Bb2 g6 Bb5 b3 Ba6 Nc6 Bf1 Na5 Ng1 Bg7 Bc1 b2 d4 Nb3 cxb3 c4 Bf4 Be5 Bd2 Bd6 Bc1 Bc5 dxc5 Kf7 Qd2 Kf8 Qd1 Ke8 Kd2 Kf7 Kc3 Kf6 f4 d6 h4 g5 h6 g4 h7 g3 h5 g2 c6 Ra5 c7 Qd7 h6 Ra7 Nh3 g1Q Nc2 Rb7 Qe1 Qg2 Ne3 Qg1 Nf2 Qg7 Nd5+ Kf7+ f6 Kg6 f5+ Kf7 a3 Ra7 Kb4 Ke8 f7+ Kf8 Rh2 Nf6 Qd2 Rg8 h8N Bb7 h7 Qg5 Ng6+ Kg7 f8N Qg1 h8R Qc6 Ngf4 Ne4 Ne2 Ra8 Nd7 Nc3 f6+ Kg6 f7 Rgc8 R2h7 Qh2 f8B Rab8 Bh6 Kh5 Re8 Kh4 Ng3 Ba8+ N7b6 Bb7 Ne3 Qe4 Ned5 Bc6 Ra2 Ra1 Qe1 b1Q Re2 Qf3 Re6 Qc2 Rf6 Qfe4 Rg8 Rb1 Rg5 Rh8 Rg8 Ra8 Rb8 Ra1 Rb7 Rac8 Rhf7 Rb1 Bhe3 Rh6 Rh7 Ra1 Qd2 Rb1 Qd4 Ra1 Qc5 Rb1 Qa5 Ra1 Bcd2 Rd1 Bc1 Re1 Bh3 Rh1 Bf1
1k1B4/3Br1q1/N4R1b/q2RPp1r/1Pp1N1B1/B1P5/1pK1n1qR/N1Q1q3 b - - 0 1 legal: proof: f4 h5 d4 a5 g4 e5 dxe5 a4 b3 g5 fxg5 hxg4 Bd2 a3 Bf4 Ra4 Bc1 Ra8 Nc3 b5 Qd2 b4 Qd1 Ba6 Nb1 Bb5 Be3 Nc6 Bd2 Nd4 Bc1 Ba4 bxa4 b3 Kf2 b2 Ke1 Nb3 axb3 Bg7 Nc3 Bh6 Nb1 Bf8 Kd2 d5 e4 Kd7 h4 Kc8 e6 f5 g6 c5 e5 d4 e7 g3 e8B c4 g7 d3 h5 g2 h6 a2 h7 Qc7 a5 Ne7 g8R Kb8 a6 Kc8 c3 Qb6 a7 Nd5 Nh3 g1Q Nf2 Qa5 Na3 Qa6 Be2 Qb5 Rh2 Rb8 a8N Qh1 Ne4 Nb6 Rg6 Na4 Bg4 Nb6 Nc7 Qd7 Rf6 Qg7 Nc2 Rb7 Na6 Re7 Bd7+ Kb7 Rb1 Nd5 Na1 Nf4 Qe1 Ne2 Qf1 Rg8 h8B Qg2 Kd1 Ka8 Be3 d2 Bc5 Kb7 Ba3 Ka8 Nc2 a1Q Qf4 Qa2 Na1 Kb7 Kc2 Ka7 Bb4 Qa5 Ba3 Ka8 b4 Kb7 Rc1 d1Q+ Kb1 Qe1 Rd1 Ka7 Kc2 Ka8 Qc1 Ka7 Nc7 Kb8 Rd3 Qh6 Rd5 Rg5 Bg7 Rh5 Bh8 Qg6 Bg7 Qg5 Bh6 Qg6 Bg5 Bh6 Bh4 Qg7 Na6+ Ka7 Bf2+ Kb7 Bb6 Ka8 Bd8 Ka7 Nac5 Kb8 Na6+
q1r5/1PB3Np/1r2RB1p/4Nr1Q/1p3r2/BP1N1Pn1/2k2nR1/KR3Br1 b - - 0 1 legal: proof: e4 d5 h4 f5 exf5 d4 a4 d3 a5 Qd4 h5 Kf7 h6 gxh6 cxd3 Qd6 d4 Qd8 d5 Ke8 d3 b5 d6 c5 Ke2 c4 Ra2 c3 Ke1 Bg7 Ra4 Bd4 Ra1 Bb6 axb6 Be6 Rh5 Qc7 Rh1 Bc4 dxc4 Qd8 g4 Kf7 g5 e5 b7 a5 f6 Ke6 b3 Kf5 c5 Ke4 f7 a4 f8B c2 Kd2 b4 d7 a3 g6 a2 c6 Qb6 d8B Ra7 c7 Nc6 c8N Qa6 g7 Nce7 Na3 Nf5 Nf3 Ng3 Bd6 Nf6 g8R Ng4 Rb1 a1R Nc4 Ra5 Ba3 c1R Nb2 Rc4 B6c7 Rb5 Bg5 Rb6 Ne7 Ra8 Rh5 Rf8 Nd3 Rf5 Bf6 Qa8 Rhg5 Rd4 R8g6 Rc8 Kc1 Rc4+ Kb2 Rd4 Nh2 Rc4 f3+ Kd4 Ka1 Kc3 Qe2 Nf2 Ng4 Rcf4 Qe4 Kc2 Qd5 e4 Nge5 e3 Qa5 Nge4 Rg2 e2 Qb5 e1R Qe8 Rh5 Nf5 Ng3 Ng7 Rhf5 Bg5 Rb8 Re6 Rc8 Bf6 Rc1 Qh5 Re1 Be2 Rg1 Bf1
BNn1Bn2/R1K4p/RBp5/Rb2P3/k3Nn2/3qp1p1/r1P2P1Q/2r1BN2 b - - 0 1 illegal: No possible last move
5B1R/2BKbP1k/1pR1PB1b/4q2p/Qrr3Np/BP1p4/4rR2/NNn5 b - - 0 1 illegal: No proof kernel
2N2RR1/2RP1p2/pq3pB1/bPB1qnNR/Qp2kP2/5p2/4b3/b3B1KN b - - 0 1 illegal: Other
3RKR2/R3Bp2/1B2n1pq/2p1q3/BQq2Pr1/1Pkp2P1/1NNp3N/2B2r2 b - - 1 2 legal: proof: c4 d5 d4 e5 h4 b5 cxb5 g6 a3 Nc6 h5 Bg7 h6 Nb4 hxg7 Be6 axb4 exd4 e4 d3 Ra5 d4 Ra1 Bd5 exd5 Qd7 Be2 Qd6 Bf1 Qd8 Kd2 Ke7 f4 Kd6 b3 a5 b6 h5 g3 c5 b5 h4 b7 h3 b8B+ Qc7 b6 h2 b7 a4 Nc3 a3 Nf3 a2 Ba7 Qd8 b8N Rh4 Bb6 Ne7 g8R Ra7 Rf8 Qc8 Na4 Qc7 Na6 Rh7 Qe1 Rh5 Nb2 Qb8 Nb4 Rg5 Nc2 Nc6 Bh3 Qe8 Bd7 Nd8 Ba4 Qe5 Rf1 h1Q Nh2 Rd7 Qe4 Rg4 Rd1 Ne6 Qe1 Ke7 d6+ Kf6 Qe4 Re7 Qe1 Kf5 d7 Qed5 d8B Qc4 Bb5 Rd7 Ba4 Rd5 Be7 Re5 Qf2 Re1 Qf3 Rf1 Qa8 Rf3 Qa5 Ke4 Qb4 Kd5 Nf1 Qh7 Nh2 Qh6 Ke1 Re3+ Kf2 Re1 Kf3 Rg1 Re1 d2 Re2 d3 Re4 Qb5 Rd4+ Kc6 Ke4 Rf1 Rb1 a1Q Ke5 Re1+ Kf6 Rf1 Nd1 Qc3 Nb2 Qc4 Rdd8 Qe4 Ra8 Kd5 Ra1 Qbc4 Rab8 Qe3 Rbd8+ Ke4 Bd6 Kd5 Ke7 Qe5 Ke8 Ke4 Bd7 Kd5 Ra7 Ke4 Ba4 Kd5 Na1 Kd4 Be7+ Qd5 Qb5 Kc3 Nc2 Qe5 Qb4+
1R1Q1B1q/r2qR1nN/P1P5/2bb1r2/n1b2B2/4r1P1/1BB2Nk1/1Kn1q1NR b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 a4 h5 c4 e5 Kc2 d5 f4 b5 a5 b3+ Kb2 e4 c6 d4 c5 h4 c7 d3 g3 d2 a6 h3 g6+ Kf6 c6 h2 g7 b4 Qg4 d1Q Bd3 e3 Nd2 e2 Bc2 e1N Nc4 Nd3+ Kb1 b2 Nh3 Ra7 Nd2 Ne7 g8R Nd7 Qe2 N7c5 Qe4 Be6 c8N Rh5 Ra4 Bc4 Nb6 Qc8 Ra1 Na4 Nf3 Qd8 Re1 h1B Nfg1 Qd4 Qe2 Bhd5 Qd2 Rg5 Re4 Qh5 Qd1 Qh8 Nf2 Rh5 Bd2 Nc1 Re1 Ng6 Re3 Bc5 Rb8 Nf8 Re7 Ne6 Be3 Bh1 Qd2 Qd7 Qd6 Bhd5 Qc7 Rh7 Qd8 Rf7 Bd2 Kg7 f6+ Kh6 f5+ Kh5 Bg5 Ng7 Bf4 Rf8 f7 Re8 Nh1 Kg4 f6 Rf8 Nh3 Kf3 N1f2 Re8 f8B Kg2 f7 Kf3 Re1 Kg2 Ng1 Re6 Be7 Re3 f8B Nb3 Ka2 b1R Bf6 Rc1 Re2 Rf1 Bb2 Nc1+ Kb1 b3 Re1 Rf3 Re7 Re3 Bc3 b2 Bd4 Qe6 Nd7 Qeh3 Nf6 Qd7 Nd1 Rf2 Nh7 Rff3 Bc7 Rf7 Bf4 Rf5 Nf2 Qd6 Ngh3 Nb3 Ka2 Qd7 Rh1 Nh5 Ng1 Ng7 Rb4 b1Q+ Ka3 Bb5 Bb2 Qe1 Ka2 Bbc4 Rb8 Nc1+ Kb1
Rn1qRNqk/1B1N4/b1r1nqR1/3P1Nr1/6Bb/P1N1PQq1/1q3B2/n3K3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 d4 g5 h4 b5 h6 c5 h5 f5 d6 Kf7 e3 f4 d7 c4 h7 Kg7 d5 c3 e6 c2 e7 b3 e8B b2 Rh3 b4 Nd2 b1Q Ne2 f3 Rh4 g4 Nc3 f2+ Ke2 g3 a3 g2 Ra2 g1Q Nde4 Qa5 Nf6 Be7 d8R Ra6 Bd7 b3 Re8 b2 Ra4 Qd8 Bd2 Rc6 Be1 Nh6 Ra8 Rg8 h8N Nf5 Ng6 c1N+ Kd2 Qe4 Nh4 b1Q Ba6 f1Q Rb2 Qh3 Qf3 Qe6 Kd1 Nd4 Rg2+ Qhg4 Rg3 Qh2 Bf2 Qb2 Ke1 Ncb3 Rg2 Na1 h6+ Kh8 h7 Kg7 h8N Qee5 Bf5 Ne6 Nd7 Qhf4 N4g6 Bh4 Nf7 Qef6 Nd6 Q4e5 Ngf8 Kh8 Rg3 Qgg6 Rg5 Qg3 Bg4 Qh7 Nf5 Rg6 Rh5 Rg5 Rh6 Bb7 Rg6 Qg8 Bc4 Rc8 Bb5 Ba6 Bc6 Rc7 Bb7 Rc4 Ra7 Rc6 Ra8
1b2r1R1/1R1K1PN1/rqPb1NPR/B5q1/3Rnnn1/BbQB2b1/8/2N1bk2 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Kg6 Kb4 Kf5 f4 h5 c4 d5 c6 e5+ c5 a5+ Ka4 e3 g4+ Ke4 b4 d4 c7 e2 c6 e1B f5 h4 f6 d3 g6 h3 g5 d2 g7 Ke3 g6 Kf2 b6 e4 Kb5 a4 b7 h2 f7 e3 Ba3 e2 Qc2 d1Q Kb6 Be6 b5 Nh6 g8R Qg5 c8N Ng4 Kc7 Nd7 b8B Nde5 b6 Ra6 b7 Qd4 Nd6 Bb3 Nf5 Nd3 Nc3 Nf4 Nd5 Qb6+ Kd7 Bd6 Ba7 Bb8 Ng7 Bb4 Qd2 B4d6 Qc3 e1B Bd3 Kg2 Rd1 Bg3 Bc5 a3 Ne2 a2 Ba3 a1B Nf6 Bb2 Rd2 Bc1 Rdd1 Bd2 Nc1 Bde1 Rd2+ Qf2 Rd1 Qd4 Bb6 Kf2 Rd8 Re8 Ba5 Qb6 Rc8 Re6 Rg8 Re8 Bc2 Kg2 Rd4 Kf2 Bd3 Kg2 Rf1 h1N Rf2+ Kg1 Rh2 Nhf2 Rh4 Ne4 Rh6 Ba7 b8R Kg2 Rb7 Bab8 Bc2 Kf1 Bd3+
N1N5/1N1bP3/n2R1r1n/qQPb1k1N/1B6/bb1rb1RP/B2B4/KRr1q3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 b4 Ke6 c4 g5 Kc2 f5 Kb2 a5 e4 d5 c5 a4 b6 f4 b5 f3 h3 f2 h6 g4 h7 g3 b7 g2 b6 d3 Nc3 d4 Nd5 d2 Ne2 g1R Nc7+ Ke7 e6 Kf6 e7 d3 e8N+ Ke5 Ng3 Ne7 Qb3 d1Q Nh5 d2 Ra3 Ra6 Bc4 f1B Ka1 Qe1 Na8 d1B Qb5 Bd7 Rg3 a3 Nd6 a2 Bd2 Ng8 Nc8 Nh6 Rh2 Rg8 h8B+ Rg7 Rf2 Bg2 Rf6 Qc7 Rd6 Bb3+ Bc1 Ra3 Bf7 Na6 b8N Rf1 b7 Qca5 Bc4 Rf6 Bf7 Bd1 Bd2 Rd3 Bb4 Rg4 Bg7 Rf4 Bd5 Rf1 Bg8 Nf5 Bh6 Bb3+ Bc1 Bh6 Bc4 Bd1 Bcd2 Be3 Be6 Nh6 Bd5 Kd4 e5 Be4 e6 Ke5 e7 Kf5 Bg8 Bd5 Nc6 Rh1 b8R B1b3+ Kb2 Rf1 Nd8 Rg1 Nb7 Rh1 Bc1 a1B+ Kb1 Bb2 Bf7 Bd1 Bcd2 Ba3 Ka1 Bg2 Ba2 Bd5 Na7 Rg1 Rbg8 Rf1 Nc8 Rh1 R8g4 Rg1 Rc4 Bb3+ Rc1 Qe2 Rb1 Rc1 Nab6 Qe1 Na8
RN1K2bQ/1P1br3/1P2qb2/N3N1BB/1rqNqqq1/B1nP4/R5nk/3R4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 h5 g4 c5+ Kc4 Ke5 b4 Kf4 b6 a5 Kb5 e5 g5 h3 d6 h4 g6 c4 d7 c3 f3 Kg3 d3 c2 f6 h2 g7 a4 f7 h3 f4 a3 b7 e4 f5 a2 f6 e3 Bg2 e2 Be4 e1Q Qh5 Be7 f8B Ra4 f7 Na6 Kc6 Nc5 b5 Nh6 g8R+ Ng4 b6 Rb4 Qh7 Bf6 Nc3 Qc7+ Kd5 Na4 Ke6 Qf4 Nb5 Nc3 Nd4 Qee3 Ba3 c1Q Be7 Qef3 Bg6 Ne3 f8N Ng2 Kf7 Q3g4 d8N Bd7 Ngf3 Qe1 Qg7 Rh7 N8c6 Qee4 Rhg1 h1B Bh5 h2 Na5 Qe1 Rd1 a1Q Ne5 Qac1 Rd2 Qee4 Ra2 Qce3 Re1 Qc6 Rd1 Qc4+ Nfe6 Qe1 Ndc6 Qee4 Kf8 Qef5 Ned4 Qfe6 Bd8 Kh3 Qh8 Re7 Bc7 Nh4 Bd6 Bd5 Nb8 h1Q Bc7 Qhe4 Bd8 Rh7 Be7 Ng2 Bd8 Kh2 Be7 Bc8 Ke8 Bd7+ Kd8 Bg5 Bf6 Re7 Bg7 Bf6 Bh6 Qd6 Re8 Bg8 Bg5 Qde6 Nbc6 Rf7+ Kc7 Qh3 Ra8 Re7 Kd8 Qhg4 Nb8
q4R1b/PBP3B1/1R1NR2N/5qBK/bn3R2/N3br1b/1k1r3P/1n1Q1bq1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 c4 g5 a4 d5 h6 b5 f3 b3 a5 b4 h7 d4 a6 d3 a7 Kd4 f4 e5 c6 b2 c5 e4 c7 d2 c6 e3 Bc4 b3 Qe1 d1B+ Be2 Ne7 Kh5 g4 f6 g3 f5 g2 f7 Bg7 f8R Nd5 f6 Na6 f7 Nab4 Ra5 Bh3 c8N Nc3 Bf3 e2 Qg3 e1B c7 Bf2 Ra1 Be3 Na3 b1B Qe1 b2 Nd6 Ba4 Bb7 Bd3 Rb1 Bf1 Ne2+ Kd3 Ng3 g1Q Re8 Rf8 Ngf5 Bh8 Re6 Qe8 Nh6 Rd8 Bd2 Rd7 Qd1 Qa8 Rc1 Nb1 Rc6 Kd4 Ra6 Kd3 Bc1+ Kc3 Rb6 Bf2 Bg5 Be3 Ndc4 Rd2 Nd6 Rd8 f8R Rf2 Ndf5 Rdd2 Nd6 Rf3 Nc2 Kb3 Na3+ Ka2 Rf4 Nc3 Rf8 b1Q Rf4 Kb2 Rf8 Bhd4 h8B Qf5 Be5 Nb1 Bg7 Qg2 Rg1 Qh1 Rg4 Qg1 Rf4 Bc3 Rd8 Be5 Bf8 Bh8 Bg7+ Qf6 Rf8 Qe5 R8f6 Qf5 Rf8+
BR6/1b1R1QBK/4r3/r1NP1RB1/1q2Pq1b/N4n1R/1r4Pk/b2Nqqn1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 b4 h5 d4 f5+ Kd3 c5 e4 f3 g6 h4 g7 c4+ Ke3 f2 Kf4 h3 b6 h2 b5 c3 b7 a4 b6 a3 Ne2 c2 Ng1 a2 Nf3 Nc6 b8R Nf6 Kg5 f4 Kg6 Qe7 g8R Nh7 b7 Ng5 Bc4 f1R Ng1 f3 Ne2 f2 Nec3 Nf3 Bb2 c1Q Na3 Qf4 Qb3 Ng1 Rd1 a1B Rg7 Rg8 Kh7 Ra5 Rd3 Rc1 Rg3 f1Q Nd1 Rb1 Bb5 Ne5 Bc6 Nef3 Rf7 Bg7 Rf5 Re8 Bc3 Rb2 Qa2 Kc7 d6+ Kd8 d7 Kc7 d8B+ Kd6 Qb3 Bf6+ Qf7 Bh4 d5 Qf8 Bg5 Re6 Bg7 Qe1 Ra8 Qf1 b8N Bb7 Na6 Qe7 Rf6 Ke5 Rb8 Qb4 Nc5 Ne2 Rg1 h1Q Rd8 Qfe1 Rf1 Neg1 Rd7 Nh3 Rf2 Qhf1 Rd2 Nhg1 Rd3 Ba6 Ba8 Bb7 Rb3 Kd4 Nc3 Ke3 Rf5 Kf2 Re7 Nh3 Nd1+ Kg1 Rc7 Kh2 Rd7 Qd4 Rb6 Nhg1 Rb5 Qdb4 Rb6 Bc8 Rb8 Bb7 Rh3+
BQb1nK2/R6k/r2R3n/1P2PN1B/6qB/P1bR2qn/2RNn3/r4Nbr b - - 0 1 illegal: No proof kernel
1q1R2Bn/qR2N3/r1B1b1nr/P7/4k1r1/1N2r1Pb/QPNR1q2/K1B1b2N b - - 0 1 illegal: No proof kernel
BR1kqNr1/q4RNb/b1nP3R/3q1N1n/4r1Rb/2BnQq2/5P1P/1K4B1 b - - 0 1 illegal: Other
B1N1RrBK/N3n1r1/2Pnb1q1/1r6/1b1N1n1b/2Bq2R1/1QPB1P2/3R2rk b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 a5 b4 d5+ Kd4 e5+ Ke3 Kg5 g4 h5 b6 h3 b5 Kh4 c6 d4+ Ke4 a4 b7 h2 f6 d3 b6 d2 f7 a3 g5 a2 g6 Qg5 g7 Bb4 f8N Qg6+ Kd5 e4 Ke5 e3 Bb2 e2 Nh7 e1N Bc3 Ne7 g8B Be6 Qc1 d1Q Qb2 Ng2 Ne2 Kh3 Nd4 h4 Nf6 Rh7 Nd7 Rg7 Ba6 Qdd3 Rd1 h1R Na3 Kh2 Nab5 h3 Na7 Nf4 Rac1 a1B Rg1 Ne2 Rcd1 Nf4 Rg3 Rg1 Bd2 Kh1 Bc3 Qh7 Kf6 h2 Bd2 Rg5 Bc3 Rb5 Bd2 Qhf5+ Kg7 Qfe4 Kh8 Qg6 Nf8 Nd7 b8R Nf6 b7 Ne4 Nd7 Nd6 Re8 Rc8 b8B Rc7 Nb6 Rd7 Rc8 Rd8 Bb7 Rf8 Qc3 Bb2 Re8 Ba1 Nbc8 Bb2 Nf3 Ba1 Qg7 Bf6 Ba8 Bh4 Qb2 Rbf5 Rh3 R5f7 Nd4 Rg7 Be1 Rg5 Re3 Rb5 Bd2+ Kg2 Rf3 h1R Rg3+ Kh2 Bc7 Rg1 Bb6 Kh1 Ba5 Bc5 Bac3 Ba3 Qb3 Bb4 Qb2
B1N4k/2qN4/P4P2/7r/B1nr2rq/n1P2q1N/n1rR1Rbb/KR3BBQ b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 Kf7 f4 Kg7 a4 h5 g4 b5 c6 e5 a5 d5 c3 e4 Kc2 e3 Kb2 e2 g6 e1Q a6 d4 c7 b3 g5 d3 Ra4 d2 Ra2 h4 Ra5 b4 Rd5 h3 Qh5 d1R Na3 h2 Be3 Nd7 Nh3 Ngf6 Nc4 Bd6 Ba7 Bb7 c8R Rd4 Nb6 Qc7 Rf8 Qh4 Nc8 Ne5 Ka1 Nc4 Rf7+ Kg8 g7 Rh7 Qd1 Rh5 Rg1 Kh7 g8B+ Kh8 g6 h1Q Rf8 Qf3 Bf7+ Ng8 f6 Bc6 f5 Bh2 Be8 b2+ Kb1 Rb8 f7 Ba8 Ka2 b1R Ba4 Rb2+ Ka1 b3 Bc5 Rg4 Rd2 Rb4 Qb1 Rc2 g7+ Kh7 Qc1 Ne7 g8B+ Kh8 Rh1 Bc6 Bg1 b2+ Kb1 Qe2 Bc5 Nd5 Bg2 Na3+ Ka2 b1N+ Ka1 Nb5 Qf1 Nf4 Qf3 N1a3 Rb1 Nd6 Bg1 Qe3 Bf1 Ne2 Qh1 Bg2 Bh7+ Rg8 Bg6 Nc1 Bh7 Rd4 Bg6 Rh7 Bh5 Ndc4 Bf3 Na2 Ba8 Bc6 Re8 Bb7 f8N Rgg4 f6 Rh5 Re4 Bd5 Rf4 Bg2 Rff2 Qf3 Nd7
1RBQn2r/b2q2Pr/K5P1/1N5N/R1RbnP2/1NqB1k2/1BB1r1n1/3b2r1 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 Kd2 Kf7 Kc3 Kg6 Kb4 Kf5 f4 h5 c4 d5 c6 e5+ c5 a5+ Ka4 e3 g4+ Ke4 b4 h4 b6 e2 Kb5 e1N b7 a4 c7 h3 c6 d4 g6 d3 g5 d2 g7 a3 g6 a2 Nf3 h2 Bg2 Bc5 Na3 Nd7 b8R Ba7 Bb2 Ngf6 Bf1 Ng2 Nd4 Ne8 Nb3 Nc5 Bd3+ Ke3 Rc1 a1B Rc4 Bg4 c8B e4 c7 Qd7+ Ka5 Kf2 b5 e3 b6 e2 b7 e1Q Nb5 Ne4 Ka6 Rh7 Rg1 h1R Bc2 R1h2 Ra4 Qd5 Bf5 Qd7 c8B Qe3 Re1 Qc3 Re3 Be2 Rd3 Bh5 Rdd4 Be2 Rdc4 Kf3 Qg1 d1R Qb6 Rb1 Qd8 Rg1 Bd3 Bd1 Bc2 Ng5 Bfd3 Ne4 Bc1 Qe6+ Qb6 R7h3 Bd7 Ne1 Rd8 Qd4 b8N Rh7 Ra2 N8d6 Raa4 Re2 Rh8 Bc3 Bb2 Ng2 Rg8 Qe8 Bh3 Qf6 Nd7 Qfe5 Nf6 Rd8 Bc8 Qd7 Nh5 Qd4 Rf8 Qe5 Rf6 Rdh8 Qa5 Ne8 Qd8 Qed4 Rb6 Qc5 Rb8 Bd4 Rcb4 Qc3 Rc4
BnK2bBR/QrPNR1B1/3qn1Pn/3r4/4q1n1/3NrP1b/kN1R3B/4q3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 d5 c4 e5 b4 h5 g4 a5 f6 Ke6 f7 a4 b6 h4 b7 a3 g6 a2 g7 h3 b5 h2 b6 Ra6 g5 Qe7 g6 Qe8 c5 Bd7 c6 Rh3+ Nf3 Ra7 c7 Nh6 g8B Bc8 Rg1 h1N Qa4 Bd7 Bg2 e4+ Ke2 e3 Kd3 e2 Na3 e1Q Nc4 Bc8 Bf4 Bd7 Rb1 a1N Bh2 Nb3 Nb2 Bc8 Rd1 Nc5+ Kc2 Bd7 Rd2 d3+ Kc3 d4+ Kb4 Kd5 Ne5+ Qe4 Qa1 Re3 Re1 Bh3 Qa5 Qd8 Kb5 Qd6 Qa6 Ne6 Ka5 Nd7 b8N Rb7 Qa7 Kc5 Ka6 Kb4 Ree2 Kb3 Re1 Ka2 Ree2 Qec6 Be4 Qc2 f3 Nf2 Bc6 Nfg4 Be4 Be7 f8B Qb1 Bg7 Bf8 Rd1 d2 Ned3 Qc2 Rde1 d1Q Rd2 Nde5 Ree2 Qe1 Nd7 Qcb1 N3c5 d3 Bc6 Rb8 Ba8 Nc6 b7 Qc2 Rd1 d2 Ncd3 Qf2 Rde1 d1R Rd2 Qg1 N3e5 Qe4 Ned3 Re8 Ree2 Qe1 b8R Rd8 Rc8 Rb1 Kb7+ Qa3 Nf6 Rd5 Nd7 Nb8 Re8 Rc1 Rd8 Rc4 Re8 Rb4+ Kc8 Rbb5 Re7 Rb7 Rg2 Nf6 Rg5 Nfg4 Rh5 Qa6 Qc5 Qd6 Qd4 Nf7 Rh8 Nfh6 Qa7+
n3B1b1/1PP3q1/BQN4k/2rRb3/NR2q1R1/2B1nrbn/3PKB2/bN5r b - - 0 1 illegal: No proof kernel
Rr1rR1r1/1B2BR2/1rN2N2/bbn2R1P/kn3q2/2PP3B/2r1Q2r/2NK2b1 b - - 0 1 illegal: No proof kernel
1r3k1r/K5Qn/2PnB2N/1PN5/2bNR3/Nn2b2R/n1Rn1P2/q1rnB1B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 e5 Kd3 d5 h4 g5 c4 a5 b4 a4 c5 g4 f6 g3 b6 a3 c6 a2 b7 g2 h6 Bg4 b5 Qa5 h5 Nd7 b8B Bc5 f7+ Kf8 h7 Nh6 Bd2 Be6 Na3 Nf6 Rc1 a1N Be1 Nb3 Rc2 Nf5 h6 Nd6 Ne2 g1N Bh3 Nf3 Qa1 Nfd2 Bf5 Qa4 Rh4 Ba7 Bc7 Rb8 Re4 Qa6 Nc3 Bb6 Na4 Qa8 Nc5 Qa4 Ke2 d3+ Ke3 Qa5 Qd4 Qc3 Bg4 Qa1 Qb2 Nf3 Qd4 d2 Kd3 d1N Qc3 Rg8 h8R d4 h7 Nfd2 Qb2 Bd5 Bc8 Nc3 Be6 Na2 Qc3 Ke7 f8N Ke8 Ng6 Ba7 Nh4 Kf8 Nf3 Bb6 Ke2 d3+ Ke3 Bc4 Qd4 Nf7 Qd7 Nd6 Qg7+ Ke8 Nd4 Rf8 Rh4 e4 Rh3 Ba7 Rg8 Bb6 h8N Nh7 Nf7 Ke7 Nh6+ Ke8 Qe5 Ke7 Rg2 Rh8 Rg4 Kf8 Qg3 Nc8 Be5 Nd6 Qg2 Ba7 Bh2 Bb6 Bg1 Ba7 Kf4 e3 Ke5 e2 Re4 Nf3+ Kf4 d2 Qg3 d1N Qg5 Nfd2 Ke5 Ne8 Qg3 Ng7 Kd6 Nf5+ Kc7 Nd6 Qg4 Nf3 Bd2 e1R Qg3 Rf1 Be1 Nfd2 Qg7+ Ke8 Nf3 Nac1 Na4 Be3 Nd4 Nc3 Nc5 N1a2 Qg5 Rc8+ Kb6 Rb8+ Ka7 Kf8 Qg3 Nf3 Bd2 Rc1 Qg6 Nd1 Be1 Nfd2 Qg7+
3KnB2/R1N1r1P1/3nP2B/6n1/2bb2R1/Nn1n1NkP/2bRQ1B1/1N3rqn b - - 0 1 illegal: No proof kernel
qn6/P1r4N/3RRK2/brNP1Q2/2BP1nbk/r1B3nr/3rN3/BRB4n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 b5 d4+ Kh4 a4 c5 f4 g5 f6 b3 h6 b2 f7 c4 h7 c3 a5 g4 f5 b4 f6 b3 a6 c2 Ne2 g3 Qd3 g2 Nbc3 b1R Bb2 g1N Na4 c1R Nc5 Bg4 Qf5 Nh3 Ke6 Bh6 f8N Bd2 f7 Nf6 Ra5 Qe8 Ba1 b2 Ra3 Rc4 Re3 Rd1 Re5 b1R a7 Ra4 Re4 Nf2 h3 Ba5 Re3 Rg8 h8R+ Nh5 Nh7 Rd2 f8B Ng3 Ke5 e6 Kf6 Rg7 Bd6 Qc6 Rd8 Rb5 Bc7 e5+ Rd6 e4 Bd8 Bc3 Ba5 Ra3 Rg1 Nfh1 Bb4 Bb2 Bc3 Qe8 Nf4 Qc6 Bc4 Rc7 Rb1 Qe8 Ne2 Bc1 Rf3 e3 Rf4 Qg8 Re4 Qc8 Nf4 e2 Ree6 e1N Ne2 Nd3 Qf2 Kh5 h4 Nf4 Qf1 Bh3 Qf2 Kg4 h5 Kh4 h6 Bg4 Qf3 Qg8 Qd3 Qe8 Qf5 Bb2 Ng5 Qc8 h7 Qg8 h8B Qc8 Ba5 Bc3 Bg7 Qe8 Bh6 Bb4 Bb6 Ba5 Nh7 Na6 Bb3 Nh3 Rc6 Rb2 Qf4 Bb4 Bc4 Kh5 Nd3 Qb8 Bc5 Ba5 Ng5 Qb7 Qe5 Rh8 Rcd6 Qa8 Bb4 Nb8 Bc3 Rhh7 Nc5 Rc2 Qe4 Rh8 Nf3 Rhh7 Bc1 Nf4 Ng5 Rh8 Nh7 Rd2 Nf8 Rh6+ Ke5 Kg5 Qh7 Rh3 Qf5+ Kh4 Kf6 Raa2 Nh7 Ra4 Bb4 Ra3 Bbc3
3nb2R/1B1Q2bN/3RB1Nn/2N2q1r/PP1B4/k2RKPr1/2Rr3r/2n1b2b b - - 0 1 illegal: No proof kernel
rB2nq1R/b1n2nBb/k2RrqB1/2R5/N2b4/2N3PP/Q1P5/bKNn1N2 b - - 0 1 illegal: No proof kernel
nb1NNr2/2Rq4/r1B4q/R2q1q2/1bPPBR2/NQ1P4/1bn1NK2/1k4Bb b - - 0 1 illegal: No proof kernel
2bBrn2/1NR3N1/4R2P/Bp1r4/2k2B1K/4r1nN/q1PPqqB1/1Rb1b2Q b - - 0 1 illegal: No proof kernel
1R6/R2B1KB1/br1PrQ1B/NPb1Rp2/1b1kN1r1/1q4N1/Pq1qn3/3R3n b - - 0 1 illegal: No proof kernel
8/1Kn1RqP1/1R6/1BP1bNR1/r1Nb1BN1/4nkBP/p1Q1b1r1/3N1rnq b - - 0 1 illegal: No proof kernel
7b/rn1RP3/4NrN1/b1n1Rb1K/qP2pr2/1nP1q2R/B1N2Q2/2kBB1N1 b - - 0 1 illegal: No proof kernel
1qN1R1nn/4p2n/b1K4N/2b1QR1P/1k1qP1R1/2Br3B/PN1r1B2/1r3q1B b - - 0 1 illegal: No possible last move
6NB/n1PRq1b1/RK5Q/N1p4P/4N1qk/qB1N4/bb2r1P1/Brn1R2r b - - 0 1 illegal: No proof kernel
qbb2k2/rPBP2rN/BKb1R1qn/1QPp4/B1RnR3/3R1N2/3N3r/3n4 b - - 0 1 illegal: No proof kernel
3b2br/4B2n/3r1kPb/1NPnN3/1RP4K/1Rq2BNb/p1N3b1/R2r1Q1B b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 f4 Kf7 Kf2 h5 Kg3 e5 b4 d5 c4 a5 f5 a4 b6 a3 g6+ Kf6 b7 a2 b5 e3 b6 e2 g7 e1R Bh6 d4 Ne2 e4 Kh4 e3 g4 d3 Bg2 d2 Nbc3 Qd4 Nb5 Na6 b8N Be6 b7 Qc3 Rh3 Nc7 Ng3 e2 Nc6 Rd8 b8R Rd6 Ncd4 Nd5 Bh1 Bf7 Qb1 Rd1 Nc2 e1B Bf3 Be7 Rb7 Bd8 g5+ Ke5 Rb6 Ngf6 g8B Nh7 f6 Bf2 g6 Be3 Bf8 Bh6 Ne2 Be6 Bf7 Kf5 Ng3+ Ke5 Be8 Bf7 Bc6 Bg8 Be7 Ke6 f7 Ke5 Rh2 Ke6 f8N+ Ke5 Nd7+ Ke6 Kh3 h4 Kg4 h3 Bf8 Nb4 Kh5 Nd5 Ne5 Kf6 Re2 h2 Re3 h1B Kh4 Bg2 Bb7 Rg1 Qf1 d1B Ba8 Bh3 Bh1+ Bf3 Rd3 Qb4 Rb3 Qc3 Bc6 Nf4 Rb8 Bfg2 Bf3 Nd5 Ra8 Qe1 Ra4 Qe3 Rab4 Qc3 Qd3 Rc1 Qf1 Rd1 Be7+
r1BBkN1K/1R2q1P1/n4R2/2n2Q1N/rNbP1r2/1Rp4P/3b1bBB/3b2b1 b - - 0 1 illegal: No proof kernel
N4n2/1Bp1N3/r6B/PPQn2r1/2bN1qnR/1RB1nr2/3k1P2/n1b1RB1K b - - 0 1 illegal: No proof kernel
B1QR1r2/1p1Bn2B/b3bNnb/2R2NB1/K2NbR1r/3q2P1/kP1b1nP1/8 b - - 0 1 legal: proof: f4 e5 c4 exf4 Qa4 g5 Qxa7 d5 cxd5 g4 Qe3+ Ne7 Qa7 g3 hxg3 Ng8 Kd1 Ke7 Kc2 Kd6 Kb3 h5 e4 f5 d4 c5 a4 h4 a5 f3 a6 c4+ Ka4 h3 Nc3 f4 Bd3 h2 Nge2 f2 Rf1 f3 Bg5 h1N Rac1 Nc6 Qb8+ Qc7 a7 Rh4 Rc2 Be6 Qc8 Qd8 Rcc1 Rb8 a8B Bh6 Bc2 Nce7 Bb1 Nf6 Rc2 Ng6 e5+ Ke7 Ne4 c3 Rcc1 c2 d6+ Kf7 d5 Ng8 Nd4 N8e7 Nf5 Qd7+ Ka3 Qb5 d7 Qd3+ Qc3 Rf8 d8R Qb5 d6 Qd3 Rce1 c1B d7 Bd2 Nf6 Rb4 Rc1 Rh4 Rfe1 f1B Re4 f2 Ka4 Be2 Qc8 f1B Rf4 Bf3 Rc5 Nf2 Bc2 Be4 Bb1 Qd6 Bc2 Ba6 Bd3 Nh8 Bb1 Qd3 Bc2 B6d5 e6+ Kg6 Ra5 Qe3 Qc7 Bf3 Nd6+ Nf5 e7 Be6 Rc8 Bfd5 Be4 Qd3 d8N Bc6+ Nb5 Bcd5 Nf7 Bc6 e8B Bcd5 Bf3 Ne7 Bd7 Bc6 Rd8 Bcd5 Rd4 Kf5 Nfd6+ Ke5 Rf4 Bc6 Bh5 Be4 Bf7 Nhg6 Bg8 B4d5 Qc8 Be4 Na3+ Kd4 Rc5 Qb1 Nab5+ Kd3 Nc4 Kc2 Bh7 Kc1 Nd4 Qd3 Ne3+ Kb1 Nef5 Ka1 Rc2 Ka2 Rc5
4k3/P3P1KR/p1b2rN1/5NrQ/n4B1R/RB2BPr1/n1NR2bb/b1bq4 b - - 0 1 illegal: No proof kernel
K2b1Nb1/1R1r2nn/4R2q/N1rn4/kBQpP3/1Nb4b/BPrB2PR/4N3 b - - 0 1 illegal: No proof kernel
1Qrr2rb/5BNn/1P1q1b1N/Kb1P2Rn/BB6/4N3/N3pkPR/1R2b2n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 f4 Kd7 b4 Kd6 d4 a5 Kd2 c5 Kc3 h5 f5 e5 b6 e3 b7 e4 b5 e2 f6 e1B+ Nd2 c4 b6 a4 Kb4 h4 f7 c3 g6 a3 g7 e3 Bb5 a2 Ne2 h3 Ba4 h2 Ba3 c2 Nc1 e2 Rb1 a1B Na2 Nd7 b8R Ngf6 g8B Bh6 f8N c1R Ne6 Bg7 Bf7 Nh7 Qb3 Ba6 Qg3+ Be5 Ng7 Rc8 Rb7 Rg8 Ka5+ Nc5 Ra7 Bb5 Bb4 Qf8 Nf1 Bb2 Qg5 Bf6 Ne3 Rd8 Qh6 Rac8 Re7 Ba1 Re5 Qe7 Rg5 Qd7 Rf1 h1N Rf3 Qe7 Rh3 Qe6 Rh2 Bb2 Bd2 Nd3 Qg6 Nf4 Bb4+ Rc5 Qf5 Nh5 Qf4+ Qe5 Bc3 Rcc8 Bb4+ Kd7 d6 Kc6 d7 Qd6 Bc3 Ba1 d5+ Kc5 Bd2 Bab2 Qg3 Kd4 Bb4 Qe6 Qb8 Qd6 Ngf5+ Ke4 Nh6 Bh8 Bb3 Bbf6 Ba4 Rdf8 d8N Kf4 Neg4 Kg3 Ne6 Rfd8 Ne3+ Kf2 Ng7
b1N1nN2/2PRr1B1/bPn1n3/4rR2/2PbNR2/2rpBQ1K/5r2/k1q3NB b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 f4 Kf7 Kf2 Kf6 g4 d5 Kg2 h5 b4 a5 c4 e5 b6 e4 b5 d4 b7 e3 b6 a4 c6 d3 c7 e2 Kh3 e1R Nd2 a3 Rh2 a2 Rg2 Rh7 Rb1 a1N Be2 Ra2 Ndf3 Bc5 Rh2 Nc6 b8R Ba6 Nd2 Nc2 Rg2 N2d4 Rb5 Ne6 Rf2 Bd4 Bf3 Re5 Bh1 Re7 Qf3 Rc2 Rd5 Rc3 Rd7 Qf8 Rbd8 Qh6 Rd5 Qg5 R8d7 Qh6 Nb3 Qg5 Be3 Qh6 Nd2 Qg5 Kh2 h3 Rf1 h4 Ne4+ Kg7 Ra5 Nf6 Rf2 Qh6 g5 Ne8 f6+ Kg6 f7 Kf5 g6 Qg5 f8N Qh6 Bg2 Qg5 Kh1 h2 g7 Qh6 g8N Qg5 Bf1 Qh6 Kg2 h1R Rb5 h3+ Kg3 h2 Bg2 Qf6 Kh3 Qg5 Ne2 Ra1 Bh1 Ra2 Ng1 Rd2 Rf1 Rf2 Nc5 Rg7 Ne7+ Kf6 Nc8 Re7 f5 Qf4 Bg2 h1B Ra5 Re4 Rb5 Ke5 f6 Qg5 f7 Qf4 Bc1 Qd2 Ra5 Qd1 Be3 Qc1 Rb5 Ra2 Nd6 Rb3 Na4+ Bc5 Nc8 Nb4 Qg4 Rc2 Rf4 Rf2 Nd6 Ra3 Bd2 Kd4 Nc3 Rb3 Nd5 Ra3 Nf6 Rb3 Be3+ Kc3 Qd1 Kb2 Nc8 Bd4 Rbf5 Re5 Bb7 Bf3 Qe2+ Ka1 Ba8 Bh5 Bh1 Bf3 Qd1 Bc6 Qf3 Rc3 Ne4 Bcb7 Ng6 Ba8 f8B Nc6 Bg7 Kb2 Nf8 Kb1 Rf6 Ka1 R6f5
B1bq4/pP1P2B1/B3QRn1/b1k1n3/1nB4r/1nKRP1N1/4rr2/3NR1bN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 g4 Kd7 b4 Kd6 d4 f5 Kd2 c5 b6 h5 b5 h4 e3 f3 b7 h3 g6 c4 g7 f4 b6 h2 g5 f2 g6 f3 Nc3 Bg4 Bb2 Qe8 Nge2 Rh7 Ng3 Nc6 b8N Nb4 Qb3 Bc8 Ra6 Rh4 Nd1 Ne7 g8B Qd8 g7 Ng6 Nd7 Rb8 Kc3 Rb7 Bg2 f1R Nc5 Rf2 Re1 h1N Nd3 Re2 Bh7 f2 g8B f1N N3f2 Nd2 Ba1 Rf7 Bf1 Nh8 Be4 Ng6 Qa2 Nb3 Bf3 Kd7 d6 Bg7 B3g2 Be5 Ba8 Ke6 d7 Kd6 b7+ Kd5 Nh5 Bh2 Ng3 Bg1 Re6 Rf8 Rf6+ Rf7 Rf5+ Kd6 d5 Kc5 Rf6 Rf8 d6 Rf7 Ng4 Nf2 Bb2 Nfd3 Ngf2 Nde5 Nfh1 Qc7 d8R Qb6 Re8 Qd8 d7 Rf8 Rd6 Rff2 Rf8 Rh7 Rd2 Rh4 Rf6 Nbd3 Kc2 c3 Bc4 Nb4+ Kb1 Rf3 Rd3 Rff2 Ba1 c2+ Kb2 c1B+ Kc3 Rfh2 Qa6 Rhf2 Qe6 Bd2+ Kb2 Rf5 Rf7 Reh2 Rd6 Ng4 Bd5 Nc2 Ba6 Ba5 Bdc4 Re2 Rd3 Rf4 Ka2 Rf1 Bg7 Rff2 Kb2 Nb4+ Kc3 N4e5 Rf6
nq3R1q/3b4/1q1pBb1N/R1BNkP2/q1P1B3/4PB2/NQR2qr1/2K2nr1 b - - 0 1 illegal: No proof kernel
3k3r/N1N3b1/q1PN1Rr1/R2NPbP1/K1Q1qp2/n2RBB2/2Br2n1/2r2r2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 g4 f5 b4 d5 c4 h5 Kc2 h4 Kb3 h3 e4 f4 c5 d3 e6 h2 c6 d4 e7 d2 g6 d3 e5 Rh6 b6 Bb7 g5 Bc8 b5 Nf6 b7 Qd4 b6 Qd8 g7 Qd6 g8B Bf5 Nc3 Nbd7 b8N Qd4 b7 Bg7 Bh7 Qe4 Na6 Ng4 Bg2 Nb6 Nd5 Rg6 Qc2 d1R Nf3 d2 Qc4 Ne3 Nd4 Rf1 Nb5 d1R Na7 Rd2 Bf3 a4+ Ka3 Rc8 b8R Ng2 Rb7 Rb8 Rd7 Ra8 Kb4 a3 Kb5 a2 Nac7+ Kf7 Rd6 Rh8 e8N Kf8 Rg1 h1R Re6 Kf7 Nd6+ Kf8 Qc3 Nc4 Ka4 Na3+ Qc4 Rb2 Be3 Rd2 Bc5 Rc1 Rd1 Rg1 Be3 Rf1 Rb1 a1Q Rb5 Qa2 Ra5 Qa1 Nc3 Qa2 Rf6+ Ke7 N3d5+ Kd8 Bg4 Re2 Rd3 Rd2 Bd1 Qb2 Bc2 Qb6 Bg8 Qa6 Bf7 Rgh6 Bh5 Rg6 Bf3
3R3B/q2B1P1B/b4bbB/bkr1r3/1q1PRK1p/4R2N/n1N4P/Nn1Q2b1 b - - 0 1 legal: proof: e4 b5 a4 f5 g4 d5 gxf5 Nc6 exd5 Nb8 axb5 c5 b4 cxb4 Ke2 Kd7 Kf3 e5 c4 g5 d4 a5 f6 h5 d6 g4+ Ke3 e4 f4 g3 b6 Kc6 c5 b3 d7 g2 f5 a4 f7 a3 b7 b2 f6 a2 Nc3 b1B Nd5 h4 Kf4 e3 Bc4 e2 Bd3 e1B Nh3 g1B Ne3 Qa5 d8R Bg7 f8B Qb4 f7 Nf6 Nc2 Na6 Bh7 Kb5 b8N Ne4 c6 Nd2 c7 Bf6 Bg7 Re8 Bh8 Re5 Nd7 Bb7 Nc5 Rc8 Ne3 Bd3 Nc2 Bg6 Nb3 Nb1 Be3 Nc3 Rb1 a1Q Bc1 Qaa5 Nba1 Qb6 Bd2 Qa7 Rb3 Nb1 Re3 Qb2 Re2 Nb4 Re3 Na2 Bc1 Ba5 Bd2 Ra8 c8B Ba6 Be6 Rc8 Bd7+ Rc6 Re4 Qb4 Bc1 Bf2 Rhe1 Bg1 R1e3 Qb3 Ba3 Qc4 Bf8 Qb4 Be6 Rc8 Bh6 Rcc5 Bd7+
BrNB2br/1R1bPB1P/3N3b/1NbN2k1/n4Pp1/q3n3/6QK/1b2RqR1 b - - 0 1 illegal: No possible last move, all moves rejected
1r2b2k/P2r4/1p1B1P1n/1q3PR1/1b5b/Nn1Q1BbR/1q1NBb2/2NRB2K b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 d4 Kf7 h4 e5 f4 g5 Kf2 Kg7 Kg2 c5 a4 e4 a6 e3 h5 g3 h6+ Kh7 d6 g4 d5 b6 f6 e2 a7 e1Q f5 c4 d7 c3 d6 c2 a5 Qe4+ Nf3 Qc4 a6 Qb5 Rh3 Nc6 Nfd2 Na5 Be2 Nb3 Na3 Rb8 a8B Bb7+ Kg1 g2 a7 Bc6 Bb2 c1B Bc3 Qc8 d8N Be8 d7 Bb4 Baf3 Rb7 Kh2 g1B+ Kh1 g3 Ne6 Bf2 d8B Rd7 Nd4 Qa8 Be7 g2+ Kh2 g1B+ Kh1 Qad5 Bd6 Bh2 Rh5 Qf7 Rg5 Bhg3 Qc2 Qe7 Qd3 Qee5 Rb1 Bh4 Ra1 Bb2 Rd1 Bfg3 Nf1 Bc1 Be1 Be3 Nd2 Bef2 Rg6 Na5 N4b3 Qb2 Nc1 Nb3 Rg5 Ne7 Qc3 Rf8 Qc2 Ng8 Qd3 Kh8 Nc2 Kh7 Rg4 Bg5 Bf4 Bg6 Bd6 Rb8 Na3 Be8 Rh4 Ne7 Rh5 Kg8 Rh3 B5h4 h7+ Kf8 Bf4 Ng8 h8R Kf7 Rh5 Nh6 Bd6 Kg8 Rg5+ Kh7 Nac4 Kh8 Na3
1r4R1/1bN2B1K/R1br3N/B3kn2/2N1pnq1/2R1q1P1/nP1PBB2/1bb2Q2 b - - 0 1 illegal: No proof kernel forced: bxDB
1qbBq3/1Nr1b3/6B1/P2n1PN1/b2rp2R/bQR2qBP/N1K5/1R2Nnk1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 d4 Kd6 Kd2 b5 a4 c5 h3 g5 h6 e5 a5 b3 f6 c4 h7 g4 f5 b2 f7 b4 Qb3 e4 Bg2 c3+ Kc2 g3 Kd1 c2+ Kd2 Ne7 Na3 b1Q Qc4 b3 Qd3 b2 Bf3 g2 Bh5 Ra7 Nf3 g1Q Qb3 Nd7 Bg6 Nb6 Ne1 Qg4 Kc3 Rg8 h8R Qe8 Rh4 Rc7+ Kd2 Qf3 Nb5+ Kd7 d6 Kc6 d7 Nbd5 d8B Ne3 d5+ Kc5 d6 N7d5 d7 Be7 Nc3 Kd4 f8N Rg7 Nd3 Rc4 Nh7 Nf1+ Ke1 Rc7 Ng5 Rg8 Rh2 Rf8 Rd2 Ke3 Ra3 Rf6 Na2 Rd6 Rd1+ Kd4 Bf4 c1B Be5+ Ke3 Rh7 Nf6 Bg3 Rd4 Rh4 Nd5 Ra4 Qc2 Rc4 b1B Rc3 Bca3 Rc1 Qb2 Rd1 Bc2 Rb1 Qh8 Qb8 Ba4 Qb3 Qfg2 Kd1 Qe8 Qc2 Qb8 Qb3 Qf3+ Kc2 Ke2 Ne1 Ra7 Bf4 Kf2 Bg3+ Kg1 Bdc7 Beb4 d8N Be7 Bb6 Rc7 Nb7 Rc6 Bd8 Rcc4 Bf4 Rc7 Bg3
5bbB/1q1rr1N1/1R5P/p1Pb1B2/n4K1N/B1P2N1R/Rnr1R3/kb1Qq3 b - - 0 1 illegal: No possible last move
b2r2rn/N3qR2/2Q1P3/1KB3B1/4NP2/1nb1Rq1R/p1B2Prk/B2Nnn2 b - - 0 1 illegal: No proof kernel
7b/R1rq2rN/2BNPn2/B1Pr2qB/1Pn2kNr/1bR4p/1B6/Q3K1Rn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 c4 Ke7 b4 Ke6 g4 d5 e4 h5 g6 a5 c5 f5 g7 d3 g5 f4 b6 a4 g6 f3 b7 f2+ Kd2 h4 Ra3 h3 Nf3 d4 Qe2 Nf6 g8N Nbd7 b8B Ra7 g7 Nb6 Rc3 a3 Rg1 a2 Qe1 a1R Na3 Rh4 Bb2 Rc7 Nc4 Raa7 Be2 f1N+ Kd1 d2 Nh2 Be7 Bh5 Ng3 Ng4 Nh1 Nd6 Nc4 Ke2 Bb7 Qa1 Bd5 Kf1 d1R+ Ke2 Rd2+ Ke1 Rab7 Ba7 d3 Bb6 Ra7 Ba5 Bf8 Ne7 Qd7 g8R Bg7 Ng6 Bh8 Ra8 Rab7 Ra7 Qg7 Ne7 Qg5 Ng6 Rg7 Nf7 Rc7 Nf8+ Ke7 Nh7 Ke6 Bg6 Bc6 Bh5 Ba4 Nd6 Bb3 Rg3 Rf2 Rg2 Rf5 Rg1 d2+ Ke2 Kd7 e6+ Kc6 e5 Kd5 e7 Kd4 e6 Rd5 Nh2 Ke5 e8B Kf4 Ng4 Qg6 Qe1 Qg5 Bc6 d1Q+ Kf1 Qa1 Ke2 Qa4 Qa1 Qb5 Ke1 Qa4 Ba8 Qd7 Bc6
1r2r2B/R4p1q/nNN1n3/2P1KR2/1Q1B2b1/n1n3Nr/BP3kP1/bq2R2B b - - 0 1 illegal: Other
K2bnR1N/4P2N/1b1q1r2/2RRP3/b2pQ2N/q2q1NPq/4Bn2/k1B1B2r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 h5 c4 h4 g6 d3 c5 f5+ Kd4 d5 e4 f4 c6 d2 g7 a4 b6 a3 c7 a2 b7 h3 b5 h2 b6 f3 Be2 f2 Qa4 d1Q+ Nd2 f1Q Nf3 Na6 b8R Nf6 g8N Nb4 b7 Nd3 Nh4 Ne8 Nf6 Qb3 Nh7 Ra6 Ndf3 Bd7 c8N Nf2 Ne7 Qa3 Neg6 Be7 g3 Qh3 Rd1 h1Q Rc8 Qf5 b8B Qhh3 Ba7 Bc6 Rb1 Qdd6 Rb5 Bd8 Rc5 Bb5 Qc2 Bc6 Bb6 Ba4 Ba5 a1B+ Bc3 Ra7 Rd3 Rf7 Qb1 Rf6 Qc2 Kf7 e6+ Kg7 e7 Kf7 e5 Ke6 Ke3 Bb2 Be1 Bc3 Rd1 Bca5+ Kd4 Bab6 Rd2 Qa2 Kc3 Qd3+ Kb4 Qa1 Qc4 Qa2 Qe4 d4 Rc2 Bb3 Rc4 Qa3+ Kb5 Ba4+ Ka6 Qb4 Kb7 Qb2 Qf4 Qba3 R5c7 Kd5 Rd7 Rhf8 Ka8 Rh8 Nhg5 Rh6 Nh7 Rh5 Nh8 Rhh6 Rb8 Rh5 Rb4 Kc5 Rb5+ Kc4 Rc5+ Kb3 Qe4 Ka2 Rd5 Kb1 Rc7 Ka1 Rcc5 Qhd7 N4g6 Rh1 Ngh4 Qh3 Bd1 Ng7 Bed2 Bdc7 Rf8 Ne8 Be1 Bd8 Be2
1B1RR2k/Rb1Pnr2/1rqP3P/4r1b1/1nQ1B1rN/q1p5/1Nq5/R2BN2K b - - 0 1 illegal: No possible last move
2kNbQ2/2nP3N/1q1p1B2/1R1PBR2/r1b2KNP/r1RB2nr/5n1q/n6B b - - 0 1 illegal: No possible last move, all moves rejected
qR2NB1k/b1p3P1/3QnNr1/2nRN1B1/1N4bq/1P1BR1P1/K3b1rb/5n2 b - - 0 1 illegal: No possible last move, all moves rejected
2R1N1r1/1p6/7K/1kNRbq1P/RPrQ1P2/2n1bB2/1qn2b2/1NBBbq1N b - - 0 1 illegal: No proof kernel
2nR4/p2n2r1/NnN2b1P/nq1N3K/2RB1b2/kr6/P1R3NP/1bB1QB1q b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxc5 Ng8 Bh3 Ke7 Kf2 f5 Kf3 g5 e4 b5 d4 b4 e5 g4+ Ke2 b3 h6 f3+ Ke3 g3 Kf4 b2 Kg5 f2 c6 f1Q c7 g2 e6 Kd6+ e7 f4 Be3 f3 Bd7 f2 Nc3 b1N Nge2 g1B Bh3 Nd2 Kh5 Bf5 c8R Qd7 Nf4 Nc4 Rc1 Na5 Rc4 Bb1 Rc2 Bg7 Bc1 Bf6 Qd2 Rh7 e8N+ Ke7 Qd1 Rg7 Nc7 Kd6 Na6 Ne7 Bg2 Qa4 Qd2 Nc8 Qe3 Kd7 d6 Qe1 d5 f1N Rc5 Bf2 Qd2 Ne3 Rc4 Bg3 Rf1 Qf2 Rd1 Qf1 Qe1 Qh1 Bf1 Qb3 Ng2 Bf4 Rb4 Nec4 Rdd2 Nb2 Rc4 Na4 Rdd4 Nbc6 Rdd2 Ne5 Rd1 Rb8 Rdd2 Kd8 d7 Ke7 d8B+ Kd6 Bb6 Qb4 Bf2 Qc5 Rdd4 Rb3 Rd3 Qb5 Bg1 Kd7 d6 Nab6 Bc5 Kc6 d7 Ng6 Rd5 Ne5 Bd4+ Qc5 Ne2 Kb5 Rd6 Qb4 d8N Ka4 Rd7 Re7 Nc6 Rg7 Rd8 Ned7 Bce3 Ka3 Nc3 Qc5+ Nd5 Qb5 Bc1+
q7/2n2p1R/1NBRbK1R/1r1P3r/1nP5/n2B1B1P/1NNn1b2/n2nBQk1 b - - 0 1 illegal: No proof kernel
2KRbN1k/P2Q2nB/r2R2r1/PRP1b1n1/N1B5/N3q1p1/2b3b1/B1bN2b1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Kd2 Kf7 Kd3 d5 Kd4 g5 Ke5 Kg7 h4 b5 f4 b4 a4 b3 c4 d4 h5 d3 h6+ Kh7 c6 d2 f6 g3 c7 g4 f7 b2 c5 g2 f5 g3 a6 Qe8 a5 Nf6 Ne2 g1B Nec3 Rg8 Na3 b1B Bb2 Be4 Bc4 Kh8 h7 Bg2 Rh6 Rg6 Rb1 Nbd7+ Ke6 Nh5+ f6 Bg7 f8N Ne5+ Nd7 Nf3 Ba1 Ra7 Qa4 d1B Rb5 Bc2 Nd1 Bb7 c8B Bc6 Nb6 Ng5+ Ke5 e6 Kd6 e5 Bf5 Ra8 Kc7 e4 f7 e3 f8N e2 Bfd3 Qe3 Be4 Ra7+ Kc8 e1B Bf5 Be8 Bfd3 Rb7 a7 Be5 Be4 Bd2 Bed3 Rgg7 Rd6 Rg6 Be4 Bc1 Bf5 Kg7 h8R Rd7 Bfe6 Re7 Bg8 Rd7 Bh7 Rb7 Nd5 Rb6 N5c3 Ra6 Nd7 Bf7 Rd8 Be8 Nf8 Kh8 Rb1 Qd4 Qd7 Ng7 Rb5 Qe3 Na4
N1brqR1b/2r3RK/3rk2R/1BR1b2Q/PB1B2p1/2P1NNbP/3n4/4r1n1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 h5 g4 hxg4 b4 Qc7 bxa5 Qd8 Ke2 Kf7 Kd3 e5 Ke4 d5+ Kd3 g5 f4 b5 a4 d4 Ke4 g3 f6 g4 c6 g2 c7 d3 a6 d2 a7 b4 f5 b3 c3 b2 Bd3 Nc6 Na3 b1R Nc2 Bd6 Ne3 Nd4 Bb5 Ne2 Nf3 g1B Ba3 Rh5 Bc5 Qe8 Bd4 Rh7 Qe1 d1R Qh4 Rb8 a8N Bf2 Ra2 Ng1 Re2 Rd3 Rb2 Re1 Rb4 Rg7 Rc4 Bg3 Rc5 Rh7 Qh6 Bf8 Qh4 Bg7 Qh3 Bh8 Qh5+ Kf8 f7 Ke7 f6+ Ke6 f8R Rb6 f7 Rd6 h3 Rdd1 Rh2 Rd8 Rd2 Nf6+ Kd3 Ne4 Rg8 Nd6 f8B Nc4 Ke4 Rhd7 Rg7 Rd6 Be7 Rb1 Ba6 Rb7 Rb2 Bf4 Rb6 Bg3 Bb5 Nd2+ Kd3 Bd7 c8R Rc7 Rcb8 Bc8 Rd5 Rdc6 Bb4 Rcd6 Rc5 Rb1 Nc4 e4+ Ke3 Be5 Ra6 Bf6 Kf4 Be5+ Kg5 e3 Rac6 e2 Ne3 e1B Ra6 Qe7+ Kg6 B1g3 Rac6 Re1 Rcb6 Bd7 Rc8 Re8 Rd8 Bc8 Rbc6 Rg8 Rf8 Qe8+ Kh6 Qd7 Rf4 Rd8 Kg5 Qe8 Rb6 Rdc6 Rf8 Kd6 Ra6 Rf7 Kh6 Ke7+ Kg5 Rc7 Rac6 Rcd7 Rh6 Rd6 Rhh7 Ke6 Kg6 Bf6 Rh6 Bfe5 Rgh7 Rc7+ Rhf7 Qe7 Rg7 Qe8+ Kh7+
BNR5/n1r5/1RNQ1BN1/n1R3p1/nP6/P1N1kn1b/1B1q1rPr/1K1b2r1 b - - 0 1 illegal: No proof kernel
3r1R1B/Q2bkR1r/2q5/b3P2b/Prr1b2n/NRn1N2P/B3BNp1/R5K1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 b5 d4 c5 a4 g5 e4 f5 e6 g4 e7 f4 h6 b3 d6 b4 h3 g3+ Kg2 b2 e5 c4 d5 c3 h7 c2 Be2 b3 Na3 b1R Qd4 b2 Nf3 Nh6 Ne1 f3+ Kg1 g2 Qa7 Nd7 Nd3 Nc5 Nf2 Nf5 d7+ Kf7 e8B+ Ke7 Bg6 Ne4 Bf7 Qc7 d8N Bd7 Ne6 Qc6 Nc7 Nc3 Be6 Nh4 d6+ Kd8 Nd5 Bh6 Nc7 Bd2 Nd5 Ke8 Bg8 Rd8 Ne3 Be1 Bd2 c1R Ba2 Kf8 Nd5 Kf7 Bg5 Ke8 Bf6 Rc2 Nd1 Kf8 N5e3 f2+ Kh2 f1B Nf2 Ke8 Kg1 Rcc1 Bf3 Bd3 Be2 Bg6 Bg7 Bh5 Bf6 Rg8 h8R Kf8 Rh7 Rh8 Rg7 Rh7 Rg3 Rd1 Bh8 Rd4 Rg7 Rc1 Rg3 b1B Rf3+ Ke8 Rf7 Be4 Rb1 Rb4 Rb3 Bc8 Rf3 Bcg4 d7+ Ke7 Rf6 Nd1 Rf5 Rcc4 Rf3 Nc3 Rf4 Ra8 d8R+ Bd7 Rdf8 Rd8 R4f7+ Ke6 Rf4 Nb5 Nf1 Ke7 Kh2 Bd2 Ne3 Be1 Rb2 Rb3 Rf1 Bc3 Ra1 Ba5 Kg1 Rbb4 Rb3 Nc3 R4f7+
R1BR3Q/r4bP1/2BN2B1/4nKRb/n1bP2n1/1n1kr3/P3p1N1/B1b3qN b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kd4 g6 e5+ Kg3 b5 f4 h5 d3 c5 f5 c4 d6 h4+ Kh3 b4 a6 b3 g5 e3 Kg4 c3 d7 e4 a7 h3 g7 b2 f6 h2 g6 e2 f7 e1N Nd2 b1B Nh3 e3 Nc4 e2 Nd6 c2 Kf5 Nf6 g8B Nf3 g7 Na6 Nf2 Ne5 Bh7 Nfg4 Bh3 Qb6 Bg6 Nc5 Bb2+ Ke3 Qg1 Ba6 d8R c1N Bc3 Be7 f8N N1b3 Ne6 Bc4 Nf4 Re8 Bb2 Kd2 Ng2 Bg5 Bc3+ Kc2 d4 Na4 Qe1 Bc1 Rf1 Qb7 Nh1 Kd3 Qh4 Qb4 Bb2 Qe1 Qh8 Bc2 Rf4 Qg1 Rb1 Bf7 Ba1 Re7 Rg8 Rae8 a8B Ra7 Bc6 Re6 Ra8 Bd1 Ng3 h1B Rb2 Ree7 Rc2 Re8 Rc5 Bc4 Rb5 Bc2 Rbb8 Bd1 Rd8 Re6 Nh4 Bf3 Nh1 Bc2 Ng2 Bfd5 Ne4 Ree7 Rf2 Bf7 Nd6 Bf4 Bh7 Ne3+ Kf6+ Kd2 Qf8 Nf3 Nc8 Bcg6 Nd6 Bh5 Bg6 Re8 Bc8 Ng4+ Kf5 Bg5 Qh8 Kd3 Rf1 Bc1 Rf2 Nf6 Nh4 Re3 Rg2 Ne5 Rg5 Nfg4 Ng2
R2R1r1q/B1R2pk1/8/2NQb1Pb/2Pn3r/N1r2P2/2r1bB1q/1KN2BrB b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Nd7 Ra1 Ndf6 d3 Nd5 exd5 c4 Ra2 cxd3 Ra5 Be6 Ra1 Bc8 Kd2 a5 g4 e5 c4 h5 b4 e4 g6 h4 f3 h3 g7 h2 d6 a4 g5 a3 b6 a2 b7 Ne7 g8B Bg7 b8B Kf8 b5 Bg4 d7 Nc6 b6 Rh4 b7 Bh5 Bh7 Be5 Bg2 Kg7 Na3 Qh8 Ba7 Rf8 Rb1 a1R b8N Ra2+ Bb2 e3+ Kc1 e2 d8R e1R Ne2 Rg1 Nd7 d2+ Kc2 Rf1 Nc5 Rg1 Ra1 d3+ Kb1 Nd4 Nc1 Nc6 Bd4 Rc2 Bf2 Nd4 Bf5 Rc3 Bfh3 Rc2 Qe1 d1B Qe4 d2 Qd5 Be2 Rd7 d1R Rc7 Rd3 Bf1 Rgg4 Bhg2 Rdc3 Rg1 h1Q Ra2 Qh2 Bh1 Rg3 Ra1 Rgh3 Rg4 Rg3 Re4 Bd6 Re8 Rg1 Rd8 Bg3 Ra2 Be5 Rb2 Qh7 Rbb8 Qh8 Ra8
rk1n3K/3q2rp/PRqr1B2/q2R1QRB/R3Nn1n/P1b1B2N/2N3qP/8 b - - 0 1 illegal: No possible last move, all moves rejected
1nBB2K1/1rP1pn1R/1bBNP1N1/n7/1P6/1RkN4/1nNqnrR1/2Q2r1n b - - 0 1 illegal: No possible last move, all moves rejected
4q1r1/2P2Q2/knB2p1B/qq6/qN3Pn1/1PR1b1nK/1n1rB3/RNN1R2R b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Bb7 Ra1 c4 d3 Bd5 exd5 cxd3 f4 Kd7 Kf2 Kc7 Kg3 Kb7 c4 a5 d6 e5 d7 h5 c5 f6 g6 a4 b3 a3 b6 e4 g7 e3 c6+ Ka6 c7 a2 b7 h4+ Kh3 e2 g4 e1Q g5 Bc5 g6 Qde8 d8R Nd7 b8R Qa5 Rdc8 Nb6 Rd8 Nh6 g8B Ng4 Ne2 d2 g7 d3 Bd5 Be3 Ba3 Rg8 Bf8 Ra7 Qe1 d1N Bc6 d2 Rd3 Nb2 Rc3 d1Q Nc1+ Qd3 Be2 Qdb5 Qd1 Qa4 Qd5 Ra8 Rd8 Rb8 Rd6 Rd8 Qf7 Rd7 Rdd1 Rd2 Rde1 Qa5 Kg2 h3+ Kg3 h2 Kg2 Rh8 g8N Qa4 Ne7 Rg8 Nd5 Qa5 Rhf1 h1N Bh6 Ng3 Kh3 Qa4 Rh1 Qa5 Na3 Qa4 Rb1 a1Q Nb4+ Ka7 Bg5 Qa2 Ra1 Qaa5 Nb1 Q2a4 Nba2 Ka6 Bh6 Q5b4 Bf1 Qaa5 Be2 Qba4 Nb4+
1rq5/4B1Pp/3KQbb1/qRRB3n/2q4N/2B2P2/2N1kqNP/N1R1bb1n b - - 0 1 legal: proof: a4 b5 axb5 g5 c4 d5 cxd5 g4 g3 Ba6 Bg2 Bb7 Qb3 Ba6 Kd1 Bc8 f3 gxf3 Kc2 f2 Kd3 Kd7 Qd1 Ke8 Kc3 Bg7+ Kc2 Bf8 Na3 f1B Ra2 a5 Be4 f5 Ra1 f4 Bd3 f3 Nb1 f2 Ra2 Ra6 Ra4 Rf6 Ra1 Rf3 exf3 Bb7 Qe2 Ba6 Qd1 Bc8 Kb3 Kd7 Kc4 Kd6 b4 Ke5 Kc5 e6+ d6 a4 b6 c6 g4 Kf4 b7 e5 b5 e4 b6 a3 g5 a2 g6 e3 g7 e2 Qe1 Qc7 Nh3+ Ke5 Nf4 Be6 Be4 Bf5 d4+ Kf6 d5 Kg5 Bb2 Be6 Bc3 Nf6 Nd2 Bf7 Rc1 a1Q Ng2 Be7 Nh4 Kf4 Nb3 Ke3 Rc2 Qa8 Na1 Nh5 Rg1 Bg5 d7 Ng3 d8B Nh1 d6 Bf6 d7 Bg6 Be7 Qc8 d8N Qa5+ Kd6 c5 Ne6 c4 Nf4 Nd7 b8R Rg8 b7 Rh8 Qb1 e1B Bd5 Re8 Qb3 Rg8 Bb4+ c3 Nfg2+ Kd3 Rc1 Ke2 Qa2+ c2 Bc3 Qc4 Rc8 Re8 Rc5 Rg8 Qb3 Rb8 Rb1 c1Q Qb6 Bd4 Rbb5 Nf6 Qa6 Nh5 Qc6 Ra8 b8N Bf6 Na6 Rb8 Nb4 Qc2 Qb6 Qf5 Nbc2 Qc8 Nge3 Bh3 Neg2 f1Q Qa6 Qf2 Rf1 Bd2 Rc1 Be1 Nge3 Bf1 Neg2 Q8g4 Qc8 Qf5 Qg8 Qc8 Qe6+
1bB3N1/NB6/nrP1RrRR/3kPq2/1n4b1/Qp4p1/1Bb2NRP/3rn1K1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 e4 Ke6 c4 f5 a4 d5 h6 g5 c6 b5 a5 b3 c5 f4 c7 g4 h7 b2 c6 f3 a6 d4 a7 b4 Qd3 Qg5 Qa3 d3 Nh3 d2 Rg1 d1R Ba6 b3 Nd2 b1B Rg2 Nf6 Bb2 Nd5 Bb7 Bd7 c8B Bc2 Rb1 Rg8 h8R Na6 Rh6+ Rg6 Rc1 Rb8 a8N Bd6 Nb6 Rf6 Ra1 Rh1 Rag1 Qf5 Kf1 Ndb4 Nf2 Ke7 e6 g3 e5 Bc7 Nde4 Bd6 Na4 Bc7 Nac3 Bd6 Nb5 Bc7 Ba8 Rb6 Na7 Bd6 Bab7 Bb8 Nd1 f2 Rg6 Kf8 e7+ Kf7 e8R Be6 Rh8 Bd7 Rhh6 Ke6 Ke2 f1N Ndf2 Nd2 Rd1 Nf3 Rd6+ Kf7 Re6 Rd1 Rh4 Ne1 Kf1 Bd3+ Kg1 Bc2 Re8 Be6 Rhh6 Bd7 Reh8 Ke6 Re8+ Kd5 Re6 Qf4 Re8 Bg4 Re7 Rd6 Ree6 Qf5 Nf6+ Kc5 Ng8 Kd5 Re7 Rf6 Re6
2bB4/R1PPNrr1/pR6/Bn3NP1/n1QRn2K/1rb3NB/1p2N1kq/2b5 b - - 0 1 illegal: No possible last move, all moves rejected
3q3B/1nrR1nK1/Rq1N4/RN3B2/1rP5/r2pPkBQ/1Pq2p2/bN1bR3 b - - 0 1 illegal: No proof kernel
2n3N1/2RNb3/3kbq2/PBp1rq1R/n2r2P1/1q6/1QPn2Kp/NRBR1B2 b - - 0 1 legal: proof: e4 a5 d4 g5 h4 f5 exf5 e5 dxe5 Nh6 hxg5 Ng8 b4 axb4 a4 Ke7 g4 c5 f4 b5 Kf2 d5 e6 h5 f6+ Kd6 a5 d4 f5 b3 e7 d3 e8B d2 f7 b4 f6 h4 g6 h3 g7 h2 Ne2 b2 Bd7 b3 Nd4 Be7 f8R Rh5 f7 Re5 Bdb5 Nd7 Nc6 Nb6 Nb8 Be6 Nd7 Na4 Kg2 Ra7 Qe1 d1Q Qc3 Qd3 Nd2 b1N Qb2 Qf5 Re8 Ra8 f8R Qb6 Rf6 Rd8 Rh6 Qa6 Rh5 Qc6+ Nf3 Nd2 Rb1 Qa6 Nd4 Qb6 Qa3 b2 Nb3 Qa6 Rf8 Qb6 Rf7 Qa6 Ra1 b1Q Qb2 Qa2 Rb1 Qb6 Na1 Qb3 Nb8 Rd7 Rf6 Qd8 Rfh6 Qdf8 Rh7 Q8f6 Rg1 Bd8 Rh1 Ne7 g8N Nc8 Rg7 Be7 Rg1 Rb7 Nd7 Rb6 Bfe2 Rb8 Rd1 Rb7 Bf1 Rb8 Bbc4 Rb4 Bb5 Rd4 Nf8 Bd8 Rc7 Be7 Nd7
7R/r1q1B2N/1b1bB3/pN1r3p/PQRqPnPB/1N1k1n2/1B1r4/1K1n3R b - - 0 1 legal: proof: h4 d5 e4 c5 b4 e5 bxc5 g5 f3 gxh4 exd5 e4 Kf2 e3+ Ke2 Bf5 Ke1 Be4 fxe4 Qd7 Be2 Qe7 Bf1 Qd8 g4 Kd7 a4 b5 c4 h5 d4 a5 c6+ Kd6 c7 f5 c8R f4 Bd3 f3 Nd2 e2 Rh3 b4 Ba3 Nd7 Nb3 f2+ Kd2 f1Q Kc1 e1B Kb1 Qff6 Qd2 Ra7 Nf3 Bf2 Rh1 h3 Ng5 h2 Bb2 Ne5 Nh7 Qc7 Bf1 Nf3 c5+ Kd7 c6+ Kd6 Qe1 Ne7 Bc4 Ng6 Ra3 Nf4 Ra2 Qb6 c7 Be7 Qc3 Rd8 Rb8 Rd7 Rh8 Qg7 Ra1 Qf7 Rc1 h1R Qd2 Rh2 c8N+ Kc7 d6+ Kc6 Rh1 Qc7 Qe1 Qg7 Be6 Bg1 Ra3 Rd2 Ra2 Rd8 d7 Bf8 Nd6 Bf2 Nb5 Bd6 Nc1 b3 d5+ Kc5 Ra1 Kc4 Ra3 Re8 d8B Bb6 Be7 Qd4 Ra1 Rg8 Bh4 Rg5 Ra2 Be7 d6+ Rd5 d7 Ba3 d8B Bd6 Bc3 b2 Nb3 Kd3 Bde7 Qf2 Be5 Qd4 Ra1 Rg2 Qb4 Re2 Ka2 Rd2 Rac1 b1N+ Rc2 Nc3+ Ka1 Nd1+ Kb1 Qdc5 Bb2 Qd4 Rc4
B3r2B/Rq2Q2q/k2K4/p1pn1Pb1/1nPN4/Br1qN3/1R2P1RN/3b1bN1 b - - 0 1 illegal: No possible last move
K7/n1k2q2/1Br4p/2Nr1Qn1/2r2RPB/N1P2q1R/n2B1pRP/3N1bbN b - - 0 1 illegal: No possible last move, all moves rejected
Q2K3B/b7/1BN1p3/PqRpnN2/B2B2nP/q1bPRR2/qN1r1r2/1kn5 b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 b5 gxh5 Ba6 c4 axb4 Bg2 b3 Bh3 b4 Bf1 Bb5 cxb5 Rh7 Bd3 Rh6 Bf1 Rh8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Kd4 a4 d5 f4 c5 h4 c4 f6 e6 h6 c3 h7 g6 b6 c2 f5 b2 b7 b3 Rh3 Ke4 Nf3 Qc8 f7 Qd7 f6 Ra5 Bb5 Qe7 Nd4 Nc6 b8N Bg7 f8R Nh6 Nf5 Ne5 Na3 b1Q Nc6 b2 Nc4 Qa3 f7 Qba2 Qg1 b1Q Qa7 Qbb3 Bb2 c1N Qa8 Nhg4 Bd4 Qbb2 Rc8 Rf8 h8B Qbb1 Rf3 Qbb3 Rf1 Kd3 Nb2+ Kc2 d3 Qc4 Rf3 Ra7 Ba6 Qb5 a5 Rc7 Nb8 Rc5 Nc6 Rc4 Bb6 Re4 Rc7 Re2 Bc8 Rd2 Bd7 Ne2 Rg1 Nc1 Rgg3 Kb1 Be8 Nc4 Re3 Bc3 Rgf3 Nce5 Bd4 Nf2 Kf6 g5 Bb6 g4 Bd4 g3 Bb6 Rg8 f8B g2 Bfc5 g1B Ke7 Rg2 Kd8 Nfg4 Bd4 Rgf2 Nb4 Bh2 Rc5 Bf4 Bc6 Bh6 Bd7 Bf8 Be8 Bd6 Bc6 Bb8 Bd7 Ba7 Bc6 Qa6 Ba4 Qb5 Nc6
1RnQ1R1b/2B3pK/b2N3n/qN1R1Bbk/4P1PB/np5N/3Bq1P1/3r1r2 b - - 0 1 illegal: Other
k3bB1R/q3Nnpq/B3q2R/1Q1P1N1n/7r/2BPpbB1/K3P3/4rNbR b - - 0 1 legal: proof: g4 d5 a4 f5 gxf5 b5 axb5 Qd7 c4 Qd6 cxd5 Qxh2 f4 Kd7 b4 e5 b6 a5 d3 h5 Kd2 c5 Kc3 c4 Kb2 h4 b5 h3 f6 c3+ Kb3 c2 f7 e4 f5 a4+ Ka2 a3 b7 Kc7 f6 Nd7 b8B+ Kb7 b6 Nh6 Nd2 Bc5 f8B Nf7 Ngf3 Bg1 Nd4 e3 Nf5 Rh4 Bb2 c1Q Qa4 Qc6 Qb5 Qe6 Bc3 Ra5 Re1 Ka8 Bg3 Bb7 Bg2 Bc6 Nf1 Raa4 Be4 Rb4 Rc1 Rb1 Rc2 Re1 b7+ Ka7 b8N Ka8 Qb4 Bb5 Nc6 Ba4 Nce7 Bc6 Kb3 a2 Qb5 a1Q Bf3 Qa7 Bg4 Nd8 f7 Nf6 Ra2 Be8 Ra6 Nh5 Ka2 Qg2 Nh6 h2 Bf5 Qge4 Bh3 Qb6 Bc8 Qh7 Nhf5 Qe6 Qa4 Qd7 Rh6 Qe6 Ba6 Bf2 Rg1 h1B Qb5 Bf3 Rh1 Bg1 Nc8 Nc6 Bfd6 Nd8 f8R Qhg6 Rfh8 Qh7 Bf8 Nf7 Nce7
7r/4pK2/n1B1Q3/qP3R1p/NP1PNb2/1RqN4/r3bB1B/n1nBq1Rk b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 Ke5 g4 Ke4 f4 h5 Kg6 a5 b4 c4 d4 a4 f6 h3 f7 a3 d6 h2 d7 c3 g5 c2 f5 a2 f6 Ra4 Be3 c1N Nf3 Bh6 f8N Ra3 f7 Ra4 Bg2 Qa5 d8B Nf6 Nd7 Qc7 f8R Ra7 Qe2 Qb7 Bc7 Qd5 Nb6 Qc4 Na4 Ra5 Rg1 h1Q Bh2 Qc3 Kf7 Nfd7 g6 Bf4 g7 Na6 g8B Ndc5 Qc4 Bg4 Ne5+ Bf3 Bf2 N5b3 Qc8 Bg5 Qe6 Bf4 Bh3 Be2 Nd3+ Kf3 Bf1 Qd2 Nbc3 Qe3 Rb1 a1Q Ne4 Qd2 Bh3 Qdc3 Bh7 Qa3 B3f5 Na1 Rb3 Qa2 Qh6 Qa3 Bd7 Qa2 Bc6 Qa3 Rg4 Qhe1 Qe6 Qa2 Rg5 Qa3 Rf5 Kg2 Rg5+ Kh1 Bf5 Qc5 Bg4 Qa7 Rf5 Qb2 Rg8 Qbc3 Nab2 Ra2 Na4 Qb6 Rg7 Qa5 Rg6 Bf1 Bd1 Be2 Rg1+
b1qr2RB/1b1P1n1B/1N3R2/1R1r2b1/1R3rn1/KPp3B1/N1Q1Pp2/qN2k3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 d4 Kd6 Kd2 c5 Kc2 a5 Kb3 f5 h6 g5 h5 c4+ Ka2 g4 b3 f3 b6 a4 h7 a3 h6 g3 b7 f2 Qc2 g2 Nh3 g1R Ng5 f4 Rh5 f3 Bh3 f1B Bf5 Nd7 b8N f2 Bf4+ Ne5 Nd7 Bg2 Bg3 Nf6 Nb6 Be7 Be4 Re8 h8R Rf8 h7 Ng4 Rg8 Rd1 h8B Rf4 Bh7 Nf7 Rh4 Bb7 Ne4+ Kc7 d6+ Kc6 d7 Kb5 d5 Kb4 d6 Bg5 Rh6 Qc8 d8R Rd5 d7 Bf3 Rf6 Rb8 Nbc3 Bg2 Nd2 Be4 Kb1 a2+ Kb2 Bh1 Rd1 Bf3 Ndb1 a1Q+ Kc1 Qc6 Rde8 Rd8 Re4 Qc8 Na2+ Kb5 Re1 Ba8 Qc3 Rd6 Rd4 Bfb7 Red1 Kc5 Re4 Rd3 Qc2 Rd2 Ree6 Kd4 Re5 Rd3 Rd5+ Ke3 Rb5 Rd5 Rd2 Qc3 Rd4 Qe1+ Kb2 c3+ Ka3 Qh1 Rdb4 Qf1 Ka4 Qg1 Na3 Qa1 Qb1 Kd2 Qc2+ Ke1 Nb1 Qc7 Ka3 Qb8 Bg6 Qc8 Bh7
B1k3bq/1R1p1R1N/1NNB4/4q1B1/Rb2Pn1K/2pP1Qn1/P2r4/rR2q1r1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 Nf6 cxb5 Ng8 b4 axb4 Kf2 g5 Kg3 c5 h4 f5 h6 g4 d3 c4 h7 b3 h5 b2 e6 c3 e7 f4+ Kh4 g3 b6 g2 h6 f3 b7 f2 Nd2 b1R Nc4 Na6 b8R Bb7 Nf3 g1Q Nd4 Bd5 Nc6 Qg7 Bg2 f1Q Rb7 Nc7 Nb6 Nf6 Bg5 Ne6 e3 Rc1 Rb1 Nf4 Qf3 Bg8 Rb4 Rc8 Ra4 Ra1 Rg1 Qe2 Rb1 N6h5 Bh1 Qe5 Bg2 Kf7 e8N Ng3 Nf6 Qe1 Bh1 Ke6 Bg2 Kd6 Bh1 Bc4 Bg2 Rg8 h8B Rb8 h7 Rg6 Bg7 Bg8 h8R Be7 Rh7 Qf8 Nfd5 Qff6 Bh6 Qh8 Rf7 Rf8 Nf6 Re8 Rb8 Kc7 Nh7 Bb4 Bf8 Ree6 Nc4 Ref6 Rb7+ Kc8 Bd6 Nfh5 Qd1 Rf2 Be4 Rb2 Qf3 Rd2 Bd5 Nf4 e4 Rg7 Nd4 Qe6 Rb5 Rf2 Bh6 Nh1 Ba8 Rg1 Bg5 Qee5 Nc6 Ng3 Rb7 Rd2 Nb6#
1r1Rb1Q1/1nPR2r1/KPN4r/2R1q1q1/1P1bN2B/1p1n4/1NBp1B1n/k4B2 b - - 0 1 illegal: No proof kernel
3K4/2P1Rq1P/R3p2B/1R4b1/3NN1b1/2pr1qN1/rk2PBQ1/rn1nnB1R b - - 0 1 illegal: No proof kernel
3n1q1N/1PbB2B1/rk2N2R/q1Q1R3/B1bP1r1P/pR1N4/Kn2Nbpq/8 b - - 0 1 illegal: No possible last move
Rn4rk/P3q1N1/1q1Qp1N1/1R3R2/q2n1Pb1/p1n1b3/1RBP3K/r1B1B1N1 b - - 0 1 illegal: No proof kernel
3N4/p1b1BNQk/2R1rr1B/1P2qb2/1KPn1P2/5R2/r2pn1Bq/1RN1B1q1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 h4 d5 c4 g5 b4 Kg7 h6+ Kh7 f6 e5 f7 g4 b6 d3 Kc3 e4 b5 g3 b7 d2 h5 e3 Nf3 e2 Rh3 e1R Nd4 g2 Rf3 g1Q Nc6 Qh2 Bg2 Ne7 Kb4 d4 Nc3 d3 Rb1 Qb6 Nd8 Re4 Ne2 Qbc7 Qg1 d1Q Bf4 d2 Nc1 Re6 Bg3 Bg7 f8B Ng6 Be7 Nf4 Bgh4 Ne2 Bhg5 Nd7 b8B Nf8 Bh4 Qcg3 Bf4 Be5 Bfg5 Bc7 Bf4 Kg8 h7+ Kg7 Be3 Qe5 h6+ Kg6 Bg3 Ra6 Bef4 Bf5 Bfg5 Rg8 h8N+ Kh7 Nhf7 Ne6 Be3 Ra2 Bgh4 Kg6 h7 Re8 h8R N6d4 Rh6+ Kg7 Re6 Kh7 Bh6 Rb8 Rc6 Rb6 Ra3 Qe1 f4 Qeg3 Rf3 Qg4 Rc5 Rf6 Be1 Qgg3 Rc6 Qf2 Bd6 Ree6 Be7 Qf1 Qf2 Qfh1 Qg3 Q1g1 Qg7#
3nRBR1/2n1rq2/1kN5/nnRb1B1Q/1p1B1rp1/n1Pb2P1/2PN2N1/2K2R2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 Ke2 c5 Nf3 f5 exf5 g4 Ke1 c4 Ng1 c3 dxc3 Bg7 Bd3 Bh6 Bf1 Bg5 hxg5 Ra3 Bd3 Ra6 Bf1 Ra8 Kd2 b5 a4 d5 f4 Kd7 a5 Kc7 g6 h5 f6 e5 f7 h4 f8N h3 g7 b3 f5 b4 g3 e4 f6 h2 a6 e3+ Ke1 d4 a7 d3 f7 b2 Nf3 d2+ Ke2 Qd7 Na3 b1N Rg1 h1B Nh4 Bd5 Nf5 Ba6+ Nc4 Rh7 Ne7 Nh6 g8R Na3 Kd3 e2 Nfg6 Nc6 f8B Nf7 Nh4 Nfd8 Ng2 Na5 Nc6 e1N+ Ke3 Bb5 Bd3 Nf3 Rf1 Nd4 Bf5 Qf7 Ra2 Rb8 a8R Ba6 Qf3 d1N+ Kd2 Ndb5 Qe4 Ne3 Qe5+ Kb7 Qh8 Rg7 Qh5 Rc8 Ra1 Rc7 Rc8 Re7 Rb1 Re4 Ra1 Rf4 Ra2 Ne6 Re8 Nd8 Ra1 Be4 Ra2 Nd5 Kd1 Ndc7 Be3 Bf3+ Kc1 Bd5 Nd2 Rh7 Re4 Rg7 Rc4 Rh7 Rc5 Kb6 Bd4 Nd6 Re1 Bd3 Ra1 Ndb5 Re5 Qd7 Re8 Re7 Kb2 Qe6 Rf1 Qf7 Kc1
4B1N1/bprr1PN1/nQ1N1b2/B1n1b3/Bb1p3R/3bRqP1/K2P1k2/1B3R2 b - - 0 1 illegal: No proof kernel
1nB1Rr2/2N3K1/2r5/qPP1p2B/4b1np/1kR1QNB1/1Nn1Pbr1/1R3rN1 b - - 0 1 illegal: No possible last move, all moves rejected
2r5/r1N4n/RK2pRRn/3B3n/qBN2P2/bP3pbQ/1NP3n1/N1k1B2b b - - 0 1 illegal: No proof kernel
1Bq2kR1/1N1nb3/1NpR3B/Pn1QbrP1/2Kb4/P5Br/np1R2bN/7B b - - 0 1 legal: proof: e4 a5 c4 f5 h4 fxe4 b4 d5 bxa5 g5 hxg5 Bh3 cxd5 Bc8 Ke2 b5 d4 h5 f4 e5 g4 e3 Kd3 c6 f5 e2 g6 e1B g7 h4 f6 h3 d6 h2 d5 b4 a3 b3 d7+ Kf7 d6 e4+ Kc4 b2 g5 e3 Nf3 e2 Nc3 Qc7 d8B Bf2 d7 e1B Bg2 Rh3 Bf4 Na6 Bg3 Nb4 Nd5 Be7 Nb6 Na2 Qd6 Rb8 Rd1 Bc3 Rd2 Bfd4 Rhd1 h1N Nh2 Nf2 Bh1 Ne4 Qc5 Qb7 Bdc7 Be5 Qd6 Bcd4 d8N+ Ke8 Qe6 Nec3 Qd5 Nb5 Bd6 Qa8 Nb7 Bg4 Bc7 Bf3 Bd6 Rc8 Bc7 Bg2 Bb8 Bf8 f7+ Ke7 Rd3 Nf6 g8R Nd7 Rg7 Rd8 Ba7 Qc8 Bb8 Nf6 R1d2 Rd6 Rf3 Nd7 Rf6 Re6 Rh6 Rf6 Rhg6 Rf5 Rd6 Bc5 Rgg6 Bfg7 f8B+ Ke8 Qd4 Bgf6 Qd5 Bcd4 Bh6 Be7 Rg7 Kf8 Rg8#
1R1B3R/2kNNn1p/1r2Rr2/5r1p/qPbPN2n/4nB2/1PnK3b/1BQR4 b - - 0 1 illegal: No possible last move
n1R5/1PpK1k2/PNP5/2R1N1QB/1r3b2/r4nR1/rrnb2pB/2R1NB1q b - - 0 1 illegal: No proof kernel
2R2N1b/1B2QK1B/Pp1P1N2/qr1N2B1/nr6/p7/1kqPbB2/1rn1rRR1 b - - 0 1 illegal: No proof kernel
2RN4/4PRKb/bk3B1B/1P1qq2N/Rprn1b2/pQPb4/3nB3/1Nr1R3 b - - 0 1 illegal: No proof kernel
3Nq3/KB1kP3/br3qN1/P2qp3/B2n1P1B/R1q1N2R/1b3p1r/Nn3QR1 b - - 0 1 illegal: No proof kernel
2Rn3r/q3pPb1/1r1R1Q2/rpnB1PB1/N3kNB1/P7/1K4R1/2Brq1Nb b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 g4 Kd7 f4 Kd6 d4 b5 Kd2 h5 Kc2 c5 a3 b3+ Kb2 h4 g6 h3 g5 c4 g7 h2 g6 Nc6 f6 Rh5 f5 Nb4 Ra2 Ra7 Be2 Qa5 Nc3 Nc6 Na4 Rh4 Bg4 Rh7 Qf3 Rh4 Qc3 Bb7 Bg5 Nd8 Bc1 Nh6 g8R Nhf7 g7 Ne5 Rh8 Rh6 g8B Qa6 Be6 Rg6 f7 Bg7 Re8 Nd7 Rf8 Kc7 d6+ Kc6 Bg5 Nc5 d7 Kd6 d5 Bc6 Qf6 c3+ Kb1 c2+ Kb2 c1R Re8 Ndb7 d8B Rd1 Ba5 Nd8 Bad2 Ra8 Bc1 Qa7 Kc3 Bb7 Rg2 b2 Rh8 b1Q Rg8 Qd3+ Kb2 Qe4 Re8 Qe1 Rg8 Kc7 d6+ Kc6 d7 Kd6 Qc3 Rf6 Bd5 Re6 Qf6 Bc6 Ne2 Bb7 Rf1 h1R Ng1 Rh8 Rf4 Bc6 Rd4 Bb7 Qg6 Ke5 Qh6 Nc6 d8N Rd6 Ne6 Nd8 Nf4 Rb6 Ba2 Be4 Rd6 Bf3 Qf6+ Ke4 Rf2 Bh1 Rg2 Qb7 Rf8 Ra5 Bc4 Qa7 Ba2 Ndb7 Rc8 Nd8 Bd5+
1RqR4/N2p2BN/1P2r3/1B5b/P1R2q2/n1pPrB1Q/kn3K2/n1N1n1Nb b - - 0 1 legal: proof: h4 a5 e4 f5 exf5 g5 hxg5 Bg7 b4 axb4 c3 Bf8 Be2 b5 Rh2 b3 Bd3 b2 Qg4 b4 Rh1 b3 Qd1 Bg7 Bf1 Bd4 Qf3 Bc5 Qd1 Bb4 cxb4 Kf8 Ne2 Kf7 Ng1 Ke8 f4 Kf7 a4 c5 g4 e5 f6 Ke6 g6 Kd5 b5 h5 b6 h4 f5 h3 f7 h2 f8N e4 g7 c4 f6 c3 f7 e3 g5 e2 g6 Kc4 Bg2 Rh6 Qc2 Ne7 g8B Nf5 g7 Nc6 Kf2 e1N Bf3 Ba6 Nh7 Re6 f8R Nd6 Qf5 Nb4 Qh3 Qc8 Rd8 Nbc2 Ra3 Na1 d3+ Kb4 Be3 Nc4 Nd2 b1N Bd4 b2 Nb3 Bb7 Nc1 Be4 Bf7 Bg6 g8N Bh5 Ne7 Re3 Ra2 Nba3 Bg7 b1Q Re2 Nb2 Bc4 Qa2 Ba6 Qf7 Bb5 Re6 Re5 Qf4 Rc5 Re3 Rc7 Ra5 Rb7 Re6 Rb8 Re3 Na2+ Kb3 Nc6 Re6 Na7 Re3 Ba6 Rae5 Bb5 Re6 Nc1+ Kc2 Nge2 Kb1 Rg1 h1B Rg4 Qcc4 Ng1 Qc8 Nb3 Ka2 Rh4 Qe5 Rc4 Qf4 Nc1+
2N5/BPNR1QrP/1PNr4/3q2q1/kR3b2/4N3/pq1pnKnR/BbqB4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 Kd7 c4 e5 b6 Kc6 b7 g5 f6 d3 c5 Kb5 f7 e4 h6 a4 f5 g4 f6 g3 h7 d4 h5 e3 c6 g2 c7 e2 h6 d2+ Kf2 d3 Qb3 d1Q Nd2 a3 Rh2 a2 Rb1 Be6 c8N Bf5 Nc4 Ra6 Nf3 Ne7 Nfe5 Ng6 Ne3 Qd5 Nc6 Rg8 h8B Bd6 f8N Qc2 h7 Nh4 f7 Qb2 Ne6 Bf4 f8R Rg7 Rf7 d2 Rd7 Bg6 Qc4+ Ka4 b5+ Qb4 Rb3 Bb1 Ba3 e1Q+ Kg1 Qg3 Be2 Qgg5 Kf2 Rb6 Bd1 g1Q+ Ke2 Qgh1 Nc7 Ng2 Kf2 Ra6 Qf1 Qbd4 Bc5 Qb2 Ba7 Rb6 Na5 Rd6 b6 Nc6 Qc4+ Nb4 Qf1 Nc2 Nc6 Nd4 Qd3 Qe6 Qf5 Ne2 Qf7 Qc4 Bc2 Qhc1 Bd1 Rgg6 Bd4 Qcd5 Be5 Rg7 Bc3 Qbc2 Ba1 Q2b2 Rb4+
KQ2N3/b1B5/RB1p3p/nq1P1Pn1/1Nk5/P2nBb1R/Nr2RnB1/5qn1 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 b5 hxg5 Ra7 c4 Rb7 Rh6 axb4 Rh4 b3 Rh6 b4 Rh1 Rb5 cxb5 Bg7 Ke2 Bh6 Ke1 Bf8 Ke2 Kf7 Ke3 e5 Ke4 c5 Kd5 h6 g4 c4 f4 e4 d4 c3 f6 e3 f5 b2 b6 c2 g6+ Ke8 b7 b3 g7 Kf7 g5 e2 Na3 b1Q Bg2 e1N Be3 c1N Ne2 b2 Rh3 Ncd3 Nc2 Nc6 b8B Bb7 Bc7 Qb8 Nc3 Nf2 Nb4 Bc5 Qb3 Ba7 g6+ Ke8 f7+ Ke7 a3 Ned3 Nca2 Qf1 Re1 b1N Re2 Nd2 f8B+ Kf6 Bb6 Nf3 Bd6 Ng1 Bdc7 Na5+ Kd6 Bf3 d5 Qb7 Qb1 Qa6 Qb3 Qb5 Qb1 Ne7 g8R Nec6 g7 Nd4 Ra8 Ne6 Qb3 Rb8 g8N+ Kf7 Nf6 Ng5 Ne8 Rb7 Bd8 Rb8 Kc7 d6 Bbd4 Rb6 Kc8 Rb7 Bc7 Ke7 Bdb6 Kf7 Ng7 Kf6 Ne8+ Ke5 Qd1 Bb8 Ra6 Ba7 Qb1 Nc5 Bc1+ Kd4 Be3+ Kc4 Bd8 Re7 Bdc7 Re4 Qb2 Rd4 Qb1 Rd2 Qb2 Ncd3 Qh8 Nb3 Kb7 Na5+ Ka8 Rc2 Ng7 Rd2 Qb8 Rb2 Ne8
q4QRB/BN1n1R1n/1N1R1R2/k1p3Pn/2PbKp1r/1q3nNB/3Pb3/5n2 b - - 0 1 legal: proof: e4 b5 a4 a5 axb5 g5 f4 d5 fxg5 dxe4 h4 Qd7 g4 Bb7 h5 Bd5 g6 Qd8 g5 Ra6 g7 Rg6 hxg6 Bb7 Ne2 Ba6 Ng1 Bc8 Ke2 Kd7 Ke3 h5 b4 c5 c4 Kc7 Qb3 Kb6 Nf3 e5 Rg1 f5 Qa2 h4 Rh1 h3 Qb3 a4 Nh2 a3 Bb2 a2 Nc3 Nf6 g8R Rh4 Rg7 Nbd7 Rf7 Nh7 g7 Bd6 Rd1 a1Q g8R Qb1 Qa3 Be7 Qa8 Bf6 Bg2 Bb7 Nf1 h2 Ng3 Qb8 Rhf1 h1N Rde1 Qe8 Ba1 Qb3 Bh3 Qb8 Re2 Qa7 Qf8 Qa8 Ref2 Bh8 Rf6+ Bc6 Rd6 Bg7 Ke2 e3 Kd3 e2 Rf4 e1N+ Ke3 Nd3 Nd5+ Ka7 b6+ Ka6 b7 e4 b5+ Ka5 b8N Bc3 R4f2 Nf4 b6 Nh5 b7 Ba4 Nb6 Bd4+ Ke2 e3 Kf3 e2+ Bc3+ Qb4 Ba1 Bd1 Nc6+ Ka6 Nd8 Ka5 Nd5 Qb5 b8B Qa4 Ba7 Qc2 Ne4 N1g3 Nb6 Qb3+ Kg2 Bc3 Kf3 e1N+ Ke3 Be2 Bb2 Qb5 Rf4 Nf3 Ba1 Bb4 Bh8 Bc3 Rf2 Bd1 Kd3 Nf1 Ng3 Bb2 Re2 Bf6 Ree6 Bd4 Rf6 Qb2 Re4 f4 Re7 Qa2 Ref7 Qb2 Nd5 Qb3+ Ke4 Qab8 Nb6 Be2 Bg2 Qc8 Bh3 Qa8+ Nb7+
1N1B1r1B/rnRKP3/N1B1pp2/nq3bNQ/3nPnk1/8/2R2P1R/2B1n2q b - - 0 2 legal: proof: d4 b5 g4 c5 b4 h5 bxc5 hxg4 a4 e6 axb5 Ke7 d5 Kf6 d6 Be7 dxe7 Rh6 Na3 Rh7 Nb1 Rh8 Kd2 Kf5 Kc3 d5 Kb4 a5+ Ka4 g5 c4 f6 h4 d4 h5 g3 c6 g4 b6 g2 Kb5 d3 h6 d2 b7 a4 c7 a3 h7 g3 c5 a2 c6 Na6 b8B Nh6 Rh2 Ra7 Na3 Rf8 h8B Kg4 Nh3 g1N Nc2 g2 Nb4 Bb7 c8N Qd7 Ng5 Nf5 Nb6 Nc5 Bc7 Nf3 Na6 g1N Bg2 Nh3 Bd8 Nf4 e3 Qe8 Nd7 Nd4+ Kb6 Ba8 c7 Be4 c8R Bf5 Rc7 Nb7 Ndb8 Qd7 Rb1 a1N Rb2 Nab3 Rbc2 N3a5 Qh1 Ne1 Bc6 d1Q e4 Nef3 Rc8 Qd5 Kc7 Qb5 Kd7 Ne1 Rc7 Qf3 Rh7 Qg2 Qh6 Qgf1 Qg6 Qg1 Rh2 Qh1 Qh5+
R1N2Nr1/Rq1B1pr1/NB6/p1Kn2nn/1B6/R2P2bP/2Q2PN1/nn1k1q2 b - - 0 1 legal: proof: c4 h5 d4 d5 cxd5 b5 g4 hxg4 a4 Bf5 axb5 Bd3 exd3 Rh3 Bh6 Rh4 Bc1 Rh8 Kd2 Kd7 Ke3 Kd6 b4 g5 b6 c5 h3 a5 b5 e5 b7 g3 b6 g4 Qc2 e4 Bg2 c4 Qb2 c3 Nf3 c2 Qc3 Qc8 Ne1 Rh7 Ra3 Ne7 Ra2 Nd7 b8R Qb7 Na3 Rg7 Bd2 c1N Qc2 Nb3 Rc8 Na1 Bb4+ Nc5 Bf3 g2 Be2 g1Q Ng2 g3 Bg4 Qb1 Bd7 Qf1 Rc7 Rd8 Rc8 Re8 Ra8 Rc8 Rg1 Rb8 Ra7 Rd8 Kd2 e3+ Kc3 e2 Kc4 e1N Kb5 Nf3 Kc4 Qc6 b7 Ng5 b8N Qb7 Na6 Rc8 Nb1 Rd8 Nc3 Rc8 Na4 Rb8 Ne1 g2 Ra3 Rc8 Nb6 Rd8 Rh1 g1N Ng2 Ne2 Rg1 Nf4 Kb5 Nh5 Kc4 Qe2 Re1 Qf1 Re2 Nf5 Re8 Ne3+ Kb5 Be7 Rg8 Bf6 Rh8 Be5 Rg8 Ke7 d6+ Kf6 d5 Nce4 Rf8 Nd2 Kc5 Nb1 Nc8 Kg6 Bb5 Kf5 d7 Nd1 d6 Nbc3 Nb6 Nb1 Re8 Ra8 d8N Ndc3 d7 Nd5 Ne6 Bg3 Rc8 Ke5 d8B Rb8 Bd7 Kf5 Rc6 Ra8 Bc7 Rag8 Bd8 Ke5 Rc8 Kf5 Nf8+ Ke5 Ne3 Kf4 Rca8 Kf3 Bc7 Nh7 Ng2 Ng5 Qa4 Ke2 Nc8 Ne7 Qb3 Nd5 Qc4 Kd1 Bb6 Bc7 Qa2 Bg3 Qc2+
qB1r2Bk/4p1N1/Bn2n3/1R1R4/1B2q1bp/1PR4P/K1nQ1P2/2NqbN1n b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 g4 cxd4 a4 b5 axb5 Ra6 g5 Rf6 gxf6 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 Kf7 c4 d5 Kc2 h5 Kb3 g5 h3 g4 b6 h4 b7 d3 c5 d4 c6 d2 c7 g3 Nc3 d3 Nd5 a4+ Ka3 g2 b3 Bh6 Qe1 d1Q Ka2 a3 Ne3 d2 Ba6 Qe2 Nf1 d1Q+ Qd2 Nc6 b8B Qe4 Ne2 g1N Bb2 Bg7 Bc3 Nd4 Bb4 Ne6 Nc1 Ne2 Bc4 Kf8 f7 Bc3 Bd5 Kg7 f8N Bd7 c8B Nf6 Ba6 Ng3 Bdc4 Nd5 f6+ Kg8 f7+ Kg7 Rb1 Nb6 Rb2 Rg8 Rc2 Kh8 Rg1 Nh1 Rg5 Qc8 Rd5 Qb7 Rb5 Qa8 Bd5 Nd8 Bc4 Bg4 Ne6 Rf8 Ng7 Ne6 Rd5 Rd8 f8R+ Kh7 Qd4 Be1 Rff5 Kg8 Qd2 Kh8 Ka1 a2 Rc3 Qec2 Rb5 Qce4 Kb2 a1N Ka2 Nc2 Rg5 Nc5 Bg8 Ne6 Rgd5
kR2RR2/1bP1P1pB/1b1B2P1/1B1qN2q/2N2q2/2nr3Q/2pnn2R/K1N3n1 b - - 0 1 illegal: No possible last move, all moves rejected
Q7/R1Pn1R1K/1PNqqNp1/2n2kP1/1B1B4/3Br3/2R2Nqp/B2qrbr1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Bg7 h6 Ng8 hxg7 Qb6 Bg5 Qc7 Bc1 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 a5 b4 h5 g4 d5 c4 d3 b6 d2 b5 a4 b7 e6 b6 d4 c5 a3 c6 d3 c7 a2 Bb2+ Kf7 f6 e5+ Kg5 Ke6 f4 h4 f5+ Kd6 Nh3 e4 Bd4 e3 Nc3 e2 Nd5 e1Q Qf3 d1R Rh2 d2 Nf2 h3 Bd3 Nd7 b8N Nc5 Nc6 Qe6 Qh1 Qdd7 f7 Nf6 g8R Ba6 Rg7 Rhe8 Kh6 Rg1 g5 d1Q f8B+ Re7 Qf3 Re8 Rf7 Bc4 Rg2 h2 Bg7 Qd8 Bh8 Nfd7 f6 Qd2 Kh7 Bb5 Rc1 a1Q Rc2 Qad1 Ba1 Ba6 Rg4 Q2e2 Ra4 Qef1 Qh1 Qg2 Bg7 Bb5 Ra7 Bc4 Rf8 Bb5 f7 Ba6 Nf6 Bc4 Nd4 Ke5 Nc6+ Kf4 N6e4 Kf5 Bgd4 Qd5 Nf6+ Re4 Rg8 Qe6 f8B Qde7+ Rg7 Q7d6 Bf1 Re1 Rf7 Ba2 Ba6 Bc4 Bb5 Bf1 Ba6 Qed5 Bb5 R8e3 Bd3+ Ne4 Be7 Q6e6 Bec5 Qdd6 Bb4 Qgf3 Nb8 Qg4 Be2 Nec5 Qa8 Qge4 Nc6 Qg2 Bd3+
1KB1QB2/NN5N/1b1B2R1/qn1Prp1p/1rq5/R1R2PNq/4nnP1/k5n1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Nb8 d5 Bg7 Nc3 Kf8 Nb1 Bd7 e6 Bh6 exd7 Kg7 Qg4+ Kf6 Qd1 Bf8 Ke2 Ke5 Kf3 f5 b4 a5 b6 c5 b7 h5 b5 c4 b6 a4 Bb2+ c3 Bd3 Kd4 Kf4 e5+ Kf3 h3 Qe2 e4+ Kf4 h2 Na3 e3 Ba6 Qc8 d8N Nh6 d7 Qc4 Nf7 Bc5 d8N Re8 Ng5 Ng4 Nh7 Nc6 b8R Na7 Bc8 Nb5 b7 Bb6 Bc1 c2 f3 Re5 Bd2 c1N Bb4 Nf2 Bf8 Ra6 Qe1 e2 Rb1 Ra8 Rb3 Ra5 Ra8 Ra6 b8B Nh3+ Kg3 Ra7 Bbd6 Rb7 Ra7 Rb8 Rg7 Rb7 Rg6 Rb8 Qb4 e1N Nb7 Ned3 Qe1 Ndf2 Rc3 Na2 Rb3 Nac3 Ne2+ Kd3 Rf1 h1Q Rg1 Qc7 Rf1 Ng1 Kf4 Qh3 Ng3 Qc4+ Qe4+ Kd2 Rc1 Nce2+ Kg5 Re8 Kf6 Re5 Rcc3 Kd1 Nc2 a3 Nd4 a2 Nc6 a1Q Na7 Qa5 Kf7 Re8 Qe7 Kd2 Ke6 Kd1 Kd7 Kd2 Qd8 Re5 Qe8 Kd1 Rd3+ Kc1 Rbc3+ Kb2 Rb3+ Ka1 Rdc3 Be3 Nd8 Rb6 Nb7 Bc5 Kd8 Nbd4 Kc7 Rb4+ Kb8 Nb5 Rg7 Be3 Rg6 Bb6 Ra3+
1b1BKQ1R/1B6/B1Nk1Pr1/pRbp4/nB3q2/P1P5/b2nN2N/1Rq3qb b - - 0 1 legal: proof: g4 b5 h4 a5 b4 c5 bxc5 f5 Nh3 g5 Ng1 e5 gxf5 g4 d4 exd4 Bf4 Ra6 Bh6 Rg6 Bc1 Rg5 hxg5 Bd6 Rh3 Be7 Rh1 Bf8 Kd2 Ke7 Kd3 d5 e4 h5 f4 g3 a3 b4 f6+ Kd7 c3 g2 g6 h4 e5 b3 g7 h3 f7 h2 f5 b2 c6+ Ke7 c7 Kd7 e6+ Kc6 e7 Nh6 e8R Na6 g8N Bd6 f8B Qg5 Qf3 Qf4 Ne2 g1B Nd2 Ng4 Rb1 Rh6 Ne7+ Kd7 Qf2 Rg6 Nc6 Nf6 Nf3 Ne4 Be7 Nd2 Rh8 Bb7 c8B+ Kc7 Bf8 Be5 Bb4 Nc5+ Kc2 Ba6 Bb7 Na4 Rb8 Ne4 Kb3 d3 Qc5 Bb5 Qf8 Bc5 f6 Kd7 Be3 d2 Bd4 Bc7 Be5 Bd3 Bd6 Ba6 Be7 Bb5 Bd8 Bc4+ Kc2 Ba2 Kd3 B5d6 Kd4 d1Q+ Nd2 Qc1 Nf3 Qh6 Rg1 h1B Nh2 Qhg5 Rg4 Ke6 Rh4 Nd2 Rh8 Kd7 Nf4 Be7 Bfa6 Qh6 Ne2 Bg3 Nf4 Bc5+ Ke5 Qg1 Kf5 Qh4 Ne2 Bf4 Ba8 Bc7 Rb5 Bb8 B8b7 Qc1 Be7 Kc7 Ke6 Qf4 Kf7 Qg1 Rd1 b1Q Bd8+ Kd7 Rf1 Qc2 Rb1 Qcc1 Qg7 Kd6 Ke8 Ba7 Qh6 Bb8 Qf8+
rR1r3Q/2B2B2/3pb3/1Nkq4/R1r1P1pq/qNnP2P1/1RR3B1/1r1N1K1b b - - 1 2 legal: proof: b4 g5 f4 e5 a4 exf4 h4 b5 axb5 g4 c4 Be7 b6 Bg5 hxg5 Nc6 Qa4 Nd4 Qd1 Nb5 cxb5 Qe7 Ba3 Qf6 Bc1 Qd8 e4 Ke7 g6 Kd6 b7 h5 b8N f5 b6 a5 d3 c5 b5 f3 g3 a4 b7 f4 b6 f2+ Ke2 c4 g7 a3 Rh3 f3+ Ke3 c3 Qc2 h4 Nc6 a2 b8R Kc5 b7 Ne7 Bg2 f1R g8B f2 Ke2 Nd5 Qb2 c2 Rh2 h3 Na3 Qh4 Bf7 Rd8 Bf4 c1R Qh8 Rc4 Nd4 Rb1 Bc7 d6 Nab5 Bd7 Rc8 Be6 b8R f1Q+ Kd2 Nb6 Nge2 Qf5 Nec3 Qd5 Ke2 Na4 Nd1 Nc3+ Kf1 Qc6 Bh1 Qd5 Rb2 h2 Bg2 h1B Rc2 Rb3 Rb1 a1Q Rbb2 Raa4 Ra8 Qa3 Rcb8 Ra5 Ra2 Rb1 Rab2 Ra6 Ra7 Rc6 Ra5 Ra6 Ra4 Ra8 Nb3+
r5RR/q1bKn3/BN1Q1pB1/1kN1Bn2/n2PB3/2Pr3n/pN3P1n/R4n2 b - - 0 1 legal: proof: d4 c5 h4 cxd4 a4 g5 hxg5 b5 axb5 d3 c3 d5 Qb3 d2+ Kd1 Bb7 Kc2 d1N Kd2 Ba6 Ke1 Bc8 Kd2 d4 Na3 Ne3 Kd3 Nd1 Kc2 d3+ Kb1 d2 Kc2 Kd7 Nb1 Ke8 Rh4 Nf6 Rh1 Bd7 Kd3 Ng8 Ke4 Bf5+ Kf3 Bd3 exd3 Qb6 Ke2 Qd8 g4 Kd7 Kf3 a5 Ke4 h5 Ke5 a4 b6 Kc6 b7 e6 d4 a3 g6 h4 g7 h3 g5 h2 g6 a2 Na3 Be7 Ne2 Ne3 Nf4 d1N Ba6 Rh3 Nd3 Nd5 Qb4 Qd7 Nc5 N1e3 Nc4 Nf1 Bf4 Bd8 b3 Ba5 Nb2 Nge7 g8B Rd3 g7 Bb6 Bg3 Nf4 Bh7 Nh3 g8B Bc7+ Kf6 e5 Bg6 e4 Be5 e3 B8h7 e2 Qb6+ Kd5 b4 e1N b5 Nf3 Rg1 h1N Rg3 Nbc6 b8R Na7 Rh8 N3h2 Qb8 Nac8 b6 Kc6 b7 Nb6 Qf8 Na4 b8N+ Kb6 Qd8 Qg4 Nbd7+ Ka5 Rg2 Nhg3 Nb6 Ngf5 Qd6 Qf3 Rg5 Qb7 Rg1 Qa7 Rg2 Nh6 Be4 Nhf5 Rgg8 Qb7 Bg6 Qb8 Bf4 Qa7 Ke5 f6+ Ke6 N1e3 Be5 Nef1 Bab7 Kb5 Kd7 Rf3 Bc8 Rd3 Ba6+
n1bb1b2/2p1kQ1n/3rB3/6b1/3R2NB/PRn3K1/PpPRNBb1/1r2N1N1 b - - 0 1 legal: proof: d4 e5 dxe5 f5 Bg5 a5 Bh6 a4 Bc1 a3 bxa3 Ra7 Nd2 Ra6 Nb1 Ra8 g4 g5 h4 fxg4 Rh2 g3 Rh3 g4 Rh1 Qg5 hxg5 Bd6 Rh2 Bc5 Rh1 Bf8 e4 h5 f4 d5 g6 b5 e6 b4 f5 b3 e7 d4 f6 b2 e5 g2 Kf2 h4 g7 h3 f7+ Kd7 e8N h2 e6+ Ke7 Qf3 d3 Nf6 d2 Bc4 d1N+ Kg3 Ra4 Nd7 Ba6 Nc5 Bc8 Nc3 Nf6 g8R Nbd7 Bg5 Ra6 Nd3 Nb6 Ne1 Na8 Nce2 Nc3 Bh4 Rd6 Rd1 Rh5 Rg5 Nh7 Rd2 Rh6 Rgd5+ Rf6 Nh3 g1B R5d4 Be3 Nhg1 Bg5 Qd5 Rf1 Bb3 Kd8 e7+ Kd7 e8N Bd8 Nf6+ Ke7 Nef3 Ra1 Ne1 Rb1 Qf5 Nb5 Be6 Nc3 Kg2 g3 Ng4+ Nf6 Kh3 g2 Bf2 Nh7 Qf4 Bg7 Bh4+ Bf6 Kg3 Bg5 f8B+ Ke8 Nh3 g1B Qf5 B1e3 Nhg1 Bh6 Bg7 Beg5 Be5 Bf8 Bf4 Rb6 Be3 Ke7 Bf2 Rd6 Ngf3 Ke8 Rf1 h1B Nfg1 Bg2 Qf6 Bde7 Qf7+ Kd8 Be3 Bef6 Rf3 B6e7 Bf2 Bef6 Qg7 Ke8 Re3 Bd8 Qg8 Ke7 Red3 Nd5 Rb3 Nc3 Qf7#
2rRn2B/Q5b1/brRB3b/3n2kB/2pPpNn1/R1N1P1p1/5P2/R2qNK2 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 cxd5 fxg4 h4 Bg7 hxg5 Bf8 b4 Kf7 e3 Kg6 b6 a5 d6 e5 d3 h5 b7 c5 d7 e4 b5 a4 b6 h4 Ra3 h3 Be2 c4 Kf1 h2 Bb2 Bh6 Nc3 Nc6 b8R Ba6 b7 Nce7 Rc8 Nf6 b8B Ned5 Bd6 Rb8 Qa1 Ne8 Nf3 Rb6 Ne1 Rg8 Rg1 h1N Rc6 Kh5 g6 Kg5 g7 Ng3+ Kg2 Nf5 Kf1 Rf8 g8N g3 Nf6 Rg8 Bh5 Rf8 Rb3 a3 Rh1 a2 Ra3 Nh4 Rg1 Ng6 Rh1 Ne5 Rg1 Nb4 Nfd5 Ng4 Nf4 Nd5 Rh1 Qc7 d8R Qd7 Nce2 Rg8 Bh8 Rf8 Qd4 a1B Qc5 Bag7 Nc3 Rb8 Qa7 Rb6 Rc5 Qa4 d4 Qd1 Rc6 Rf7 Rh2 Rc7 Rh1 Rc8 Kg2 Rb2 Nc2 Qd3 Rha1 Rb6 Ne1 Qd1 Kf1
B3N2B/k3b1b1/1p2bp2/3p1BPB/1R1nPKn1/rnN2RR1/Pq6/1N2rQ2 b - - 0 1 illegal: No proof kernel
4RN2/n4B2/1pp1rqr1/PQN2P1n/2K4b/kNpB4/b1PBR3/1BR2br1 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 d5 b4 Nd7 bxa5 Nb8 Qe2 Qd7 Qa6 Qd8 Qc4 dxc4 Ke2 Kd7 g4 Kc6 f4 Kb5 a4+ Kb4 d4 e5 f6 h5 f7 b6 a6 h4 g6 c3 Kd3 h3 d5 c6 g5 h2 f5 Rh7 d6 Bg7 f8N Be6 a5 Ba2 a7 Bb3 d7 Bf7 Nf3 Nf6 Nfd2 Rh8 Nb3 Nh5 N1d2 Bf6 g7 Rg8 g6 Bh4 Ne4 Qf6 d8R Na6 Nec5 Nc7 Re8 Nb5 Bd2 Rc8 a8Q Na7 Re1 Ka3 Rg1 h1B Re2 Bg2 Qb7 Rc7 Qa6 Re7 Qb5 Re6 Kc4 e4 Rh1 e3 Rg1 Rh8 g8B Rh6 g7 Bh3 Reg2 Rg6 Bd3 e2 Rc1 e1R Re2 Rg5 Ra8 Reg1 Re8 Bg6 Bf7 Bf1 g8B Bh7 Ne4 Rg6 Nec5 Re5 Bd5 Re6 Bf7 Bg8 Nd4 R6g5 Bg6 Ka2 Kb4+ Kb2 Bb3 Re4 Ba2 R5g3 Bb1 Ba2 Bf7 Re6 Ndb3 Rg6 Kc4 Ka3 Rf2 Qd8 Rh2 Qf6 Re2
N1nr3b/1B1kB1P1/7K/1p1Rq2b/N2rp1pR/2n1N1RP/2P2Q1n/r3BR2 b - - 0 1 illegal: No proof kernel
R1r1R3/1r2nPPN/KR3Q2/N3rBPn/n3bb1p/q4pN1/3R1B1p/2k4B b - - 0 1 illegal: No proof kernel
Qk1B1BR1/pqR3KN/p3r3/P6N/bb1R4/2p1P1N1/rNB2nnP/6nb b - - 0 1 illegal: No possible last move
1bN2K1Q/p6P/p3B3/1R1RR3/1BN1nkp1/rrbPN1Pn/1B1R1n2/6qb b - - 0 1 illegal: No possible last move, all moves rejected
3n4/1B3R1r/3p2n1/1P2NNQB/1qPp1P1p/kb1N1R1n/qB2R1r1/4bKN1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 b6 h5 Rh2 a5 b4 e5 c4 Ke7 f4 Kd6 g4 e4 f6 h4 b5 Kc5 g6 Kb4 g7 a4 f7 a3 g5 d6 g6 e3 b7 a2 Be2 Be7 f8R Bf5 Rf7 Qa5 Na3 Bc2 Kf1 Rh7 Bh5 Bd8 Qg4 Nc6 b8N Nge7 g8N Ba4 g7 Ng6 Rh3 Bb3 Rf3 Qa4 Qg2 Ba5 Qg5 Nd8 Ne7 Ra6 Rb1 a1Q Nf5 Ra7 Rb2 Re7 Rg2 Qa2 Nd7 Re4 Nh3 Re7 Bb2 e2+ Kg1 e1N Kf1 Re5 Ng1 Re2 Ne5 Nd3 Rh2 Nf2 Nc2+ Kc5 Ne1 Kb4 Rg2 Nh3 Rgf2 Q4a3 N1d3+ Ka4 Rg2 Be1 Rh2 Re4 Rd2 Re2 Rc2 Rg2 Re2 Qc5 g8B Ne6 Rb7 Nd8 Bd5 Qca3 Rf7 Qb4 Ba1 Ka3 Bb7 Bf2 Bc3 Be1 Bb2+
2B1q3/6K1/pbNp1N1p/k2R4/r2rNq2/N2PP1nR/1PbR3n/2B2bBQ b - - 0 1 illegal: No possible last move
BQ1B3K/1bPNR3/n5P1/p3rbR1/P1R2ppk/1N1rr1N1/2N3B1/q1nq4 b - - 0 1 legal: proof: f4 c5 g4 h5 d4 e5 dxe5 g5 b4 Be7 bxc5 hxg4 Bg2 g3 Bh3 g4 Bf1 Bg5 fxg5 Rh6 Bg2 Rh3 Bf1 Rh8 Kd2 Ke7 Ke3 b5 Kf4 f5 a4 a5 c4 d5 h4 b4 e4 b3 g6 b2 Kg5 d4 h5 g2 c6 d3 c7 d2 e6 Nh6 c5 Qd4 c6 Qg7 e5 Ng8 h6 Ra6 h7 Qf7 Na3 b1R Rh5 Ra7 Ne2 g1Q Ng3 Nf6 Kh6 Ba6 c8R Rg8 h8N Rc7 Qb3 d1B Nc2 Nfd7 Bg2 Bae2 Bg5+ Qf6 Kh7 f4 Nf7 Bb5 Nd6 Bf1 Nc4 Rd8 Nd2 Na6 Qb8 Bf3 Nb3 Re1 Rc1 Re4 Re1 Ndc5 Bh4 Bb5 Rg5 Re3 Re2 Qd1 Re1 Ke8+ e7 Bd3 Kg8 Bf5 Re2 Qe6+ Kh8 Nd3 Re1 Nc1 Re2 Rc3 Re4 Rb7 c7 Kd7+ e8B+ Ke7 Rc4 Rdd3 Bc6 Rb5 Ba8 Bb7 Rd8 Qc6 e6 Kf6 e7 Re5 Rd5 Qb6 Rd7 Qbg1 e8N+ Ke6 Nd6 Kf6 Nc8 Rde3 Re7 Rcd3 Nb6 Qge1 Re4 Qc3 Rd4 Qa1 Rc4 Qd2 Rd7 Qac3 Rh5+ Ke6 Bd8 Qd1 Na3 Qa1 Re7+ Kf6 Nc2 Qb2 Rh6 Kg5 Nd7 Qa1 Rhh7 Bfe4 Rhf7 Kh4 Rf5 Qa2 Rc5 Qa1 Rg5 Bf5 Rc4
qB2n3/b1PN4/1RQ1PRbK/bp1B4/5k1N/pN1q1p1r/1B1RP2n/6rR b - - 0 1 illegal: No possible last move, all moves rejected
k7/1P3rRp/B1Q1q1BN/p2b2Kp/R1n1r3/qn1P2N1/P4NqR/2B1N1b1 b - - 0 1 illegal: No possible last move
2qn1Kb1/1P1N1pNq/r2nB3/R2Q1P2/B1r1Bn1P/2p1p3/k1B1NR1b/R7 b - - 0 1 illegal: No proof kernel
K3NQ1q/pP1Pr3/B7/1N2R1B1/B1RRpp1N/qr3Bkb/P4n1n/2r4b b - - 0 1 legal: proof: e4 d5 exd5 g5 c4 b5 g4 bxc4 h4 e6 hxg5 Bb4 f4 Ne7 f5 Bc5 g6 Bb4 f6 Ng8 g5 Bc5 Bg2 Bf8 Bf1 Bg7 fxg7 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Ke7 Ke3 Kd6 Kd4 h5 b4 f5 b5 h4 b6 c3 Ba6 c6 Na3 c2 Nf3 h3 Re1 h2 Nh4 h1B Re5 Qd7 Qf3 Qd8 Nb5+ Ke7 Kc5 Rh6 d4 Nf6 g8B Rh7 g7 Ng4 g6 Kf6 d6 Nf2 d5 Qf8 Bf7 Qh8 g8B Rg7 Be8 Re7 g7 Nd7+ Kb4 c5+ Ka5 c4 Be3 c3 Rc1 Nc5 d7 Ng4 d8R Ne4 d6 Nef2 Bgf7 Rb8 Bh5 Nh2 g8N+ Kg7 Bg5 f4 Qa8 Kh7 Bf3 Kg7 Ree1 e5 Nf6 Bh3 Bd7 Kf7 Ne8 Rb7 Bdc6 Ke6 Re4 Rb8 d7 Rb7 Rd4 e4 Rc8 Ke5 Rcd1 c1Q Rc4 c2 Rdd4 Qb2 Rc5+ Ke6 Re5+ Kf7 Qb8 c1R Qd6 Kg8 Qf6 Kh7 Qf8 Rb8 Bcb7 Qb3 Rcc4 Qb2 Bc6 Rb7 Nc3 Qa3+ Ba4 Rb8 Kb5 Rb7 Kc6 Rb8 Nf5 Kg6 Nb5 Rb7 Bg2 Kh5 Nh4 Rb8 Kc7 Kg4 Bf3+ Kg3 Kc6 Rc8+ Kb7 Rc5 Ka8 Rb1 b7 Rb3 Rb4 Rc1 Rbc4
B1N3Rr/2R1B1Np/6pk/Rpb1Nrr1/4R2n/2P1r3/b4PQP/3Bqn1K b - - 0 1 legal: proof: d4 b5 g4 f5 gxf5 e5 dxe5 c6 b4 Qe7 a4 Kd8 axb5 Ke8 b6 Qd8 b5 cxb5 e4 Kf7 e6+ Kf6 c3 d5 b7 a5 e7 d4 e8B g6 e5+ Kg7 e6 a4 e7 d3 Nd2 a3 f6+ Kh6 f7 a2 Nc4+ Kg7 Qf3 Ra7 Nd6 Nd7 b8R Ne5 Rb7 Be6 Bg5 Nc4 Nc8 Nd2 Qg2 Nh6 Rc7 Nf5 Nf3 Nh4 Bc6 Qe8 Be2 Nf1 Bd1 d2+ Ke2 Ra4 Ne5 Rf4 Ba8 Rf5 Bf6+ Kh6 Rg1 Qd7 e8N Bc5 f8R Qe7 Ng7 Bb3 Rg8 Qe6 Rc1 a1R Be7 Ba2 Rb1 Rg5 Rb4 Rb1 Rc4 Rb4 Rg4 Rf4 Rh1 Rf6 Ra4 Rff5 Ra5 Ne3 Re1 Nf1 Ba4 d1R Bb3 Rd4 Bd1 Nd2 Ke3 Rd3+ Ke2 Nb3 Kf1 Re3 Kg1 Nd2 Kh1 Nf1 Nc4 Qe4 Ne5 Qb1 Re2 Qc1 Bb3 Qe1 Bd1 Rh3 Re4 Rd3 Rca7 Re3 Rc7
1K1BNnB1/1pP2n1P/Q3Nq2/1R1b2p1/npr1r3/k1nR4/R1P1B3/b1N3R1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 Ke7 Ke3 d5 Kd4 f5 h4 g6 e4 f4 a4 f3 e6 f2 Ke5 d4 h6 d3 h5 d2 c6 Qd7 a5 Qd8 h7 Nf6 a6 Rg8 h8R Bd7 a7 Nh7 h6 Ng5 h7 Bh6 Rh5 Qe8 Na3 Rf8 Nb5 Qd8 Nd4 Qe8 Nge2 Kd8 Kd6 Qf7 e5 Bg7 e7+ Kc8 e8B Be6 c7 Qf6 Bf7 Nd7 Bg8 Bd5+ e6 Re8 Rb1 Nf8 Rb2 Nf7+ Kc5 Rb8 e7 Kd7 Ne6 Rbd8 Kb6 Kd6 Qe1 d1N a8R Nc3 Ka7 Na4 Bg5 Kc6 Qa1 Kb5 Nc1+ Ka5 Bd3 f1N Be2 Ng3 Bh4 Rd7 Rd8 Ne4 Kb8 Nc3 Qa2 Rd6 Re5 Rc6 Qc4 Nb6 Rg5 Ka4 Qb5+ Ka3 Qa6+ Nba4 Rh5 Be4 Rb5 Rc4 Bg5 Nd6 Bh4 Nc8 Rd3 Bd5 Bg5 Nd6+ Ka7 Rb8 e8N Nf7 Bh4 Rd8 Bg5 Rd6 Kb8 Re4 Bh4 Rc6 Bg5 Rcc4 Bh4 Qf2 Bd8 Qf6 Rb1 Qf2 Rc5 Nd6 Rb5 Be5 Bf7 Qf6 Rg8 Bd4 Rd1 Na2 Rg7 Bb2 Bg8 Ba1 Rb2 Nc3 Rg1 g5 Rd7 Nf7 Rd6 Bc6 Rd3 Bd5 Ra2#
q1R1bBB1/P2R3k/1N1Pbp2/K1N1QR2/n3pPnN/3Bb2q/1p6/3Rr1q1 b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 b4 a6 h4 Nd7 e5 Nb8 e6 a5 hxg5 Ra6 d3 Rd6 d4 Rd7 d6 axb4 d5 Bh6 exd7+ Kf8 Be2 Kg7 Bc4 Kg6 Bf1 Bf8 Kd2 h5 a4 e5 g4 c5 f4 c4 a5 h4 a6 e4 a7 f6 Ba3 b3 Kc3 b2 Kb4 c3 Nd2 b1B Bd3 c2 Ngf3 c1Q Nc4 h3 Nh4+ Kg7 g6 h2 g5 Nh6 Nb6 Ng4 Ka5 b4 Qe1 b3 Qc3 b2 Qe5 Bc2 Rd1 Kg8 g7 Kh7 g8R h1Q Bb4 Qe8 d8R Qh3 d7 Na6 Ra3 Bc5 g6+ Kh6 g7 Ba4 Rb3 Be3 Bf8 Nc5 d6 Kh7 Rb4 Bc6 Rb5 Na4 Rc5 Bd5 Rb5 Be6 Rd5 Bb7 Rc8 Bc6 d8N Bb5 Nb7 Bc6 Rc7 Qa8 Nc5 Be8 Rd7 Qd2+ Qc3 Qf2 Rf5 Qfg2 Qe5 Qg1 Be7 B8f7 Rb8 Rc8 Bf8 Be8 Na6 Rc3 Rc8 Rc1 Nc5 Ra1 Rd2 Rf1 Rd1 Re1 g8B+
2N1R1K1/R1pr3Q/PBN1rbpN/q6B/n2P3B/nRP1pB2/k6n/q5r1 b - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 e5 f3 d5 b3 Bf5 b4 axb4 exd5 e4 Bd3 e3 Bf1 Be4 fxe4 Ra3 Ne2 Ra7 Ng1 Ra8 Ke2 Ke7 Kf3 Kd6 Kf4 Kc5 Ke5 b5 h4 f5 Ke6 f4 Kf7 b3 a4 Kb4 d4 b2 c3+ Ka5 h6 f3 h5 f2 d6 b4 h7 b3 e5 Ra7 e6 Ne7 h6 Rb7 d7 Qc8 d8B Ng8 e7 Ra7 e8B Qh3 Qd3 Nd7 Be2 f1Q+ Nf3 Qf2 Nd2 b1R Bh4 b2 Ne4 Qg1 Ne5 Nb6 Nd6 Be7 Nc8 Ra6 Bf3 Nf6 Qc2 Rg8 h8N Ng4 h7 Bf6 Ra3 Qhf1 Rb3 Nh2 Qg6 Ra1 Qh6 b1N Ba3 Qg5 Bc5 Qd1 Rf1 Na3 Rf2 Nd7 Ra2 Re6 Ba7 Nc5 Bb6+ Ka6 a5 Na4 Nc6 g6 Bd7 Rd8 Qg7 Re5 Bdg4 Rd7+ Kg8 Re6 Nf7 Qh1 h8R Rg1 Nh6 Qd5 Nb4+ Kb5 Qh7 Kc4 Bh5 Qc5 Nc6 Qe5 a6 Qa5 Ra1 Qg2 Rab1 Qf1 Ba7 Qe1 Rb7 Qc1 Bb6 Qb2 Ra7 Kb3 Bc5 Ka2 Bb6 Qa1 Rb3 Rdd6 Kf7 Rd8 Re8 Rd7+ Kg8
n1R3Q1/K6n/p1Bq4/N1NrR3/Pb1Rn2r/1np2PB1/2N3Pp/3n1BNk b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 c4 bxc4 hxg5 Ba6 Bd3 Bb7 Bf1 Bc8 d3 c5 Rh3 c3 Rg3 c2 Re3 c4 Rh3 c3 Rh2 Ba6 Rh1 Bc4 dxc4 Qc8 Rh6 Qc7 Rh1 Qd8 Rh4 Kf7 Ke2 d5 Kd3 e5 a4 h5 b4 a6 g6+ Kf6 b5 e4+ Kd4 e3 b6 Kg5 f3 Qd7 f6 Bb4 f7 Nf6 f8N Rh6 c5 Nh7 Rf4 h4 g7 e2 g8B e1N b7 h3 c6 Rh4 c7 Nd3 Na3 Nc5 Bd2 c1N Qb3 Qe7 Be1 Nbd7 b8N Nb6 Nc6 Rd8 c8R Na8 Nc2 Rd6 Nd7 Qd8 Ke5 d4 Na5 d3 Bd5 d2 Bc6 Rd3 Qc4 N1b3 Qe6 Rd6 Rd4 Qc7 Bf2 Qb8 Re1 d1N Rc7 Qd8 Rc8 Qf8 Ree4 Qh6 Qg8+ Qg6 Rf4 Ne4 Rf6 Rd5+ Ke6 Rh5 Nc5 Rh6 Ke7 Rh4 Re6 Kf4 Re5 Qd6+ Ke8 Rg4 Be3+ Kg3 Bf2+ Kh2 Bh4 Qh6 Bg3+ Kh1 Ke7 h2 Ke8 Nd6+ Kd8 Rh4 Kd7 Nb6+ Kc7 Na8+ Kb8 Ne4 Kb7 Qd6 Ka7
1k1r3n/qB1pp3/1NRQ2N1/B3RP1p/1R1PnN2/1Nn1b3/1n1P2rB/Kn6 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 a4 b5 axb5 Bb7 Qf3 Be4 Qd1 Bd3 cxd3 Bg7 Qa4 Bh6 Qd1 Bf8 f4 h5 b4 a5 g4 c5 d4 c4 f6 h3 f5 a4 b6 h2 g5 a3 b7 a2 b5 c3 b6 c2 g6 Qc7 g7 Kd8 f7 Qc8 Qf3 Ra6 Na3 Qc4 Qf4 Qb3 Qd6 Nc6 b8N Kc8 b7+ Kd8 Rb1 a1N Bb2 c1N Nh3 Qg3+ Kd1 Na5 Nf4 Na2 Nc4 Nc3+ Kc1 Nh6 g8R Nc2 Rg6 Na3 Nb6 N5c4 Bg2 Qh3 Rf1 h1N Re1 Ng3 Re5 Nge4 Rge6 Bg7 f8N Nf7 N8g6 Bh6 Rf6 Ra8 Na6 Rg8 b8B Nh8 Nc5 Qd3 Ba1 Nb2 Nb3 Qa6 Rfe6 Qa7 Bh1 Nf2 Bb7 Rg7 Qd5 Nfe4 Rc6 Nbd1 Rb2 Nab1 Qd6 Rg8 Nc5 Bg5 Rb4 Nb2 Kc2 Bh4 Nb3 Bf2 Nf8 Rg2 N8g6 Nc4 Bb2 Be3 Ba3 Na5 Kb2 Nc4+ Ka1 Nb2 Nc4 Ke8 Bc7 Rd8 Ba5 Rb8 Nb6 Kd8 Qd5 Rc8 Rce6 Kc7 Rc6+ Kb8 Qd6+ Rc7 Nfd5 Rg1 Ra4 Qa8 Re6 Bg5 Qg3 Bf4 Bd6 Be3 Rb4 Qa7 Qe5 Rg5 Qf6 Rg4 Bh2 Rg2 Ndf4 Rc8 Re5 Rd8 Qd6+
1bN2r2/1Qq2kp1/4BB2/BR2prPK/1nr2P1n/1n1NP3/1R4rp/2RNB3 b - - 1 2 legal: proof: g4 d5 c4 b5 cxd5 f5 a4 Bd7 axb5 fxg4 h3 g3 Ra4 Bc8 Ra1 Bg4 hxg4 Qd7 Ra4 Qc8 Ra1 Qd8 b4 h5 d4 e5 f4 a5 g5 c5 b6 g2 Kf2 h4 Kf3 a4 Kg4 a3 d6 c4 b7 c3 e3 h3 d5 h2 b5 a2 b6 c2 d7+ Ke7 d6+ Ke6 Bd2 c1R Nh3 g1N Bb5 Ra3 Qf3 Ne2 Be1 Ra5 Nf2 Nc3 Nd3 Na6 b8N Qc8 d8B Na4 b7 Qc7 d7 Nb4 Nc3 Ra6 Rb1 a1R Nc6 Ne7 b8R Ng6 Rb2 Nc5 Nd1 Nh4 Ne7 Nb3 Qb7 R1a2 Nc8 Kf7 Bf6 Rc4 d8B Bd6 Bd7 Rf8 Kh5 Ra7 Rb1 Rg2 Rb2 Qc5 Ba5 Ra6 Ra8 Bb8 Ra7 Re6 Ra6 Rd6 Rb6 Qc7 Rb5 Re6 Rf1 Re7 Rff2 Re6 Rfc2 Rec6 Rc1 Re6 Bd8 Rf6 Be7 Rf5 Bd8 Rg1 Bf6 Rg2 Be6+
1r1N2nK/r1n3N1/k4P2/1N1Brp2/Rp2r1RQ/1Bb3B1/P3nP1p/3RqR2 b - - 0 1 illegal: No possible last move, all moves rejected
2RNR2b/1p2N3/1BRPq3/r1P1p3/bn1B1Nbb/k4p1N/B2rP2r/1K1Q4 b - - 0 1 illegal: No proof kernel
3q3n/rR1p1Rpq/BR1r1n1b/r5Np/4QN1P/B1KBPB1N/6Pr/2k5 b - - 0 2 legal: proof: d4 c5 f4 cxd4 a4 b5 axb5 e5 fxe5 Qg5 Na3 Qf6 Nb1 Qd8 b6 a5 b3 a4 Ra3 Ba6 Ra1 a3 Qd2 Bb5 Qd1 Ba4 bxa4 Be7 Qd3 Bd6 Qd1 Bf8 Kd2 Ke7 c4 Ke6 h4 Kf5 e3 Ke4 e6 h5 b7 f5 a5 f4 e7 d3 e8N a2 c5 f3 a6 f2 a7 Bd6 c6 Be7 c7 Rh6 c8B Bg5 Nc7 Nc6 b8R Ne5 Ne6 Nf6 Ba3 Ng6 Nf4 Nh8 Kc3 d2 Qg4 d1Q Rb7 Qe2 Ngh3 Qd3+ Kb2 Rg6 Rg1 Bh6 Nc3+ Ke5 Rb1 a1R Be2 f1R Ne4 Rf3 Neg5 Qf5 Bc5 Ra5 Ba3 Qd3 Rgc1 Rf1 Qf3 Rh1 Rf1 Rh2 Qg4 Qf5 Kc3 Qe4 R1b6 Qf5 Nf7+ Ke4 Ba6 Rg5 Be2 Qh7 Rf3 Rgd5 Nfg5+ Ke5 Bd3 Rd6 Rb4 Rb8 R7b6 Rb7 a8B Rba7 Bca6 Rad5 Rb1 Ra5 Ne2 Ng8 Rf7 Nf6 Rb7 Kd5 R1b6 Ke5 Ne6 Kd5 N2f4+ Ke5 Bdc4 Ke4 Neg5+ Ke5 Qf3 Kf5 Qd5+ Kg4 Rb8 Kg3 Ng1 Kf2 N1h3+ Ke1 Bd3 Kd1 Bc6 Qe4 R8b7 Qg6 Qe6 Qh7 Bf3+ Ke1 Kb3 Kd2 Qe7 Qf5 Qe4 Qh7 Bb4+ Kc1 Kc3 Ra4 Bc5 Ra5 Ba3+
3R4/2Q2BP1/2qB1N1B/Nrq3Rr/1p1nNpK1/b2p1P2/2P1qR2/R2bkq2 b - - 0 1 legal: proof: e4 a5 d4 d5 h4 c5 b4 g5 hxg5 Nd7 dxc5 axb4 Qd3 d4 Qd2 Nb6 Qd1 Nd5 exd5 Be6 Nf3 Bf5 Ng1 Bc8 Ke2 Kd7 Kf3 h5 g4 e5 a4 f5 g6 b5 a5 h4 g5 h3 g7 b3 c6+ Kd6 a6 Kc5 c7 Kb4 d6 b2 d7 h2 g6 Qg5 d8B Ne7 g8N Rh5 g7 Nc6 a7 Be7 Nd2 Kc3 Nb3 b1Q Na5 Ba3 Be7 b4 Bd6 Rb8 a8R Rb5 Bc4 d3 Nh3 Bd7 Rg1 h1Q+ Rg2 Qe7 Bh6 f4 Qg1 Kd2 c8R Qf1 Nf6 Qf8 Be6 e4+ Kg4 e3 Rd8 e2 Ng5 e1Q Nge4+ Ke2 Rac8 Nd4 Rc5 Bc8 Rg5 Qd1 Be5 Qc5 Bd6 Bb7 Bf7 Qd2 Rh2 Qe3 Nd2 Qhc6 Qg2 Ba8 Qd5 Bb7 Nde4 Qd2 Qc4 Qdd1 Rh3 Ke1+ Rf3 Qe2 Qe6 Ba8 Qd7 Qf1 Qc7 Bb7 Ra2 Qde2 Ra1+ Bc1 Bg8 Bc8+ Rf5 Qd1 Bf7 Rh2 Kg5 Ba3 Re5 Bh3 Kh4 Rh1 Rg5 Bg4+ Rh3 Be2 f3 Rh2 Kg4 Rh1 Rg3 Rh5 Ra2 Qd2 Rg2 Bd1 Ra1 Qde2 Rf2
6Qb/2PR1bR1/p2nb1q1/2P3N1/N3BB2/r2pp1Bq/2rPbR1N/B3K2k b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 bxc5 gxh4 a3 Na6 a4 b4 Ba3 Nc7 Bc1 Nb5 axb5 Qc7 Ne2 Qb6 Ng1 Qd8 c4 Kf7 f4 Kf6 g4 h5 c6 e5 b6 d5 c7 h3 b7 h2 b8B h4 Qc2 h3 Ba3 e4 Nf3 b3 Bg2 b2 Bd6 d4 Qb3 e3 Nc3 b1B Na4 d3 Rf1 h1B Nh2 Ne7 Rf2 Ba2 Be4 Bf3 Rc1 Be6 g5+ Kg7 g6 Kh6 g7 Kh5 g8R Kh4 f6 Qe8 f7 Be2 Rg7 Nc8 Be5 Nd6 Ba1 Rh5 Rb1 Rc5 Rb2 Be7 f8N Bf6 Nh7 Qg6 Ng5 Kg3 Rd7 Bb1 Qa2 Bh8 Rb7 Bc2 Qb2 Bb3 Qg7 a6 Qg8 Ra5 Rb5 Ra7 Rf5 Rb7 Rff7 Rbb5 Rg7 Rc5 Ba7 Rc6 f5 Bf7 f6 Be6 f7 Rcc5 Nc3 Ra3 f8B Rc6 Bd4 Ba2 Rf3+ Kg2 Na4 Kh1 Be5 Bf7 Bg3 Rc5 Ng4 h2 Bf4 Kg1 Rf2 h1Q Be7 Qh3 Nh2 Be6 Ngf3+ Kh1 Bh4 Rb5 c5 Rb2 Bhg3 Rc2 Bd4 Bf7 Ba1 Bae6 Ng5+
2N1q1bB/Q1B5/1qP2NB1/p2p4/nnnk2Rb/PK2N3/pN3RP1/1r2Rn2 b - - 0 1 illegal: No proof kernel
1N6/B3qQr1/p1n5/5np1/2p1kNPR/Bqr3r1/PBPR1qN1/nK2N1R1 b - - 2 3 legal: proof: e4 d5 exd5 a6 b4 e6 b5 Bc5 f3 Ba7 b6 Qe7 bxa7 Qd8 g3 h5 Kf2 e5 Nh3 e4 Bd3 e3+ Ke1 h4 Ng1 h3 Bf1 Bf5 Bg2 Be4 fxe4 hxg2 h4 Kd7 d4 Kd6 g4 f5 e5+ Kd7 e6+ Kd6 h5 b5 h6 g5 e7 c5 e8R e2 Kd2 e1R h7 b4 Rh4 f4 Ba3 f3 Kc1 c4 Nc3 f2 Kb1 f1Q Re2 Qd7 Rd2 Qff5 Nce2 Nf6 Nf4 Nh5 Nf3 g1Q Ng2 Re3 Qf1 Ng7 Nfe1 Qd3 Qf7 Rg8 h8B Nf5 Bg7 Nc6 Bf6 Rae8 a8N Rh3 Nb6 Qe7 Nd7 Qf2 Nb8 Rg3 Bh8 Qf8 Bf6 Ree3 Bh8 Qe7 Bf6 Kc7 d6+ Kb7 d5 b3 d7 Rg7 d8N+ Kb6 Bc1 Kc5 d6 Ref3 Ne6+ Kd5 d7 Ke4 d8B Qc3 Rh5 Qcb4 Rh4 Rc3 Ba3 Qbb6 Kc1 Qbb4 Nef4 b2+ Kd1 b1N Kc1 Qb3 Bb6 Qb7 Ba7 Qe7 Rd8 Nd2 Rb1 Nf3 Rd2 N3d4 Be5 Qbb7 Bf6 Nb3+ Kb2 Qbb4 Rc1 Qa4 Kb1 Na1 Rcd1 Rcd3 Bfb2 Qb3 Nf3 Re3 Rg1 Rc3 Nfe1
3Qr1B1/p1BP2pR/NqB1BP1q/4npR1/pPN2k2/br6/bN1K1n2/2R5 b - - 0 1 illegal: No proof kernel
8/1N1Np1R1/4Knp1/nbbp1R2/1r1Q2P1/1q1BN1B1/npBBPP1k/1b2R3 b - - 0 2 legal: proof: g4 a5 d4 f5 h3 b5 gxf5 c5 b4 axb4 dxc5 Ra3 Nd2 Rg3 Nb1 Rg4 hxg4 Qb6 Bg5 Qc7 Bc1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 h4 a4 b3 c4 d6 a5 h3 c6 h2 c5 g6 c7 b2 a6 b4 c6 b3 a7 Bg7 a8B Rh5 Bd2 Qd7 Bg2 Rg5 Na3 b1B Nc2 b2 Be4 Bh6 Ra5 Qd8 Bd3 Nd7 Nf3 Rh5 Ne5 Nb8 Re1 h1N Ne3 Kg5 f6 Kh4 f7 Kh3 f8B Kh2 Bg7 Ng3 Bf6 Ne4 Bh4 Ba6 c8R Bb5 c7 Ngf6+ Ke6 Nc3 Nd7 Na2 Bae4 Nc6 Bf5 Qh8 Rg8 Bg5 Rg7 Qb8 c8N d5 Ra3 Na5 Nd6 Rh8 Nb7 Qg3 Bc2 Rb8 Bfd3 Bf4 Ra4 Bd6 Rf4 Bc5 Rf5 Qf4 Bc1 Qc4 Qd2 Qb3 Qb4 Qa3 Qd4 Qb3 Bd2 Bc6 Nd6 Rb4 Nb7 Bb5 Bg3+
4K3/1r5B/2p1N3/2PqBN1R/pb1Pq2p/1NBkRp2/P1r2rRn/Qn5B b - - 0 2 legal: proof: f4 e5 c4 exf4 h4 g5 hxg5 d5 cxd5 Bf5 b3 Bd3 Ba3 Qd7 Bc1 Bc4 bxc4 Qd8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 Ke5 b5 g4 a5 e4 f5 Ke6 Kd4 Kf7 h5 c5 c6 d6 a4 g6 b4 g7 f3 e5 b3 d7 f4 g5 b2 g6 f2 e6 f3 e7 Nf6 g8R Ra6 e8N Qb6 d8B Ng4 g7 Ra7+ Bc7 Qb5 Bg2 f1R Nh3 Nd7 Nf4 Ndf6 Nd6 Rb7 Ne6+ Kd3 Nf5 Ne4 Ke8 Nh2 Be5 Rf2 Re1 Qc4 Bh1 Qd5 Re3+ Kc4 d4 Nc3 Bd2 Rh6 Re2 Kd3 Rh8 h4 g8B Rg6 Rh5 Bh6 Bh7 Rgg2 Qc1 Bg5 Be1 Bh6 Nd2 b1Q Nb3 Bd2 Qb2 Qc2 Re4 Nb1 Re3+ Kc4 Qc1 Bb4 Bc3 Qce4 Qb2 Rc2 Qc1 Rgf2 Qb2 Na3 Rg1 Nb1 Rg6 Rd7 Qa1 Rb7 Re2 Kd3 Rg2 Nd2 Re1 Nb1 Re3+
3N2nR/2r1P1K1/N1bb3p/BRpp2N1/1B1k1PBp/8/Rn1PQqb1/5b1N b - - 0 1 illegal: No proof kernel
1RbB3q/4Knq1/bbQN2R1/pr1p4/3P2N1/P1p2Pp1/1R1N2R1/1bkB3B b - - 0 1 legal: proof: f4 e5 fxe5 f5 c4 a5 c5 f4 c6 f3 Qb3 f2+ Kd1 Ra7 Kc2 bxc6 Kd3 c5 Qd1 c4+ Kc3 Bb4+ Kc2 Bf8 h4 g5 Rh2 g4 Rh3 Nc6 Rh2 Ra6 Rh1 Nd4+ Kc3 Nf3 gxf3 Rg6 Kc2 Rg5 hxg5 Kf7 Rh2 Ke7 Rh1 Ke8 Kc3 Kf7 Kd4 Ke6 b4 Kf5 Kd5 Kf4 e4 c5 d4+ Kg3 g6 h5 g7 d6 e6 c3 a3 c4 e5 h4 e7 h3 e8B h2 b5 c2 b6 c3 e6 Rh6 e7 Rh3 b7 Rh5+ Bg5 c1Q b8R Nh6 g8R Nf7 Bg2 f1B Nd2 Kf2 Rab1 g3 Ba4 Bd3 R1b2 Bb1 e8N Qe7 Qb3 Ke1 Rg6 Qe5+ Kc6 Qg7 Bd8 Rb5 Qc4 d5 Bd1 Bc5 Nd6 Bb6 Qc5 Ba6 Kd7 Qc2 Ke6 Qe4+ Kd7 Qh4 Qc6 Qhh8 Ke7 Bc8 Ba4 Ba6 Nh3+ Ke2 Rg1 h1B Nf2 Ke3 Bh3 Bg2 Bd1 Bf1 Bg2 Bc8 Ng4+ Kd3 Bh1 Be2 Rb3 Bf1 Be2+ Kc2 Rb2+ Kc1 Bd1 Rb3 Qa4 Bfa6 Qc6 Rb5 Rg2
8/p2N2n1/N1PP2rn/1bQr1pB1/NK1R3b/1pBpB3/p2P4/Rq1N1Rk1 b - - 0 1 illegal: Other
NRBN4/3p2bN/2qp2pP/R1pPn1Q1/2Rr2P1/3p1bBr/3KBq1k/2N5 b - - 1 2 illegal: Other
B2kB2K/1N5n/1P3ppr/p1pP1R2/2p2n2/2BBqR1N/5pPr/2Q1RNb1 b - - 0 1 illegal: Other
4BRNB/3p2Qb/3K2kq/n1rP2N1/q1rb1p1R/2NP2b1/1n3P1n/2R1BR1r b - - 0 1 illegal: No possible last move
1B2KbBn/1rb1RQ2/2BkN1P1/rnpb2p1/b1PNN3/2Bn1r2/R3q1P1/3R4 b - - 0 1 illegal: No proof kernel
1r2Rb2/2nB4/RP2bn1N/1BrbBpQ1/3q1P1K/5qp1/1b4P1/1r1NRBkN b - - 0 1 illegal: No proof kernel
1B1BQ3/1q2NB1n/2b3RR/bp3K2/1Br1R2p/qP2qP1P/1n5N/bbNk3r b - - 0 1 illegal: No proof kernel
R2bbk1B/K2pBbp1/4p1P1/n1n2n2/qr1NP1B1/2R1B3/Q4RP1/N2Nr1r1 b - - 0 1 illegal: No proof kernel
5k2/p5b1/1rb3Kn/PNqp4/2nrR3/1nBpN1P1/B2P1rN1/RbQ2RBN b - - 0 1 illegal: No proof kernel
6b1/RQKp1bN1/2RP1B2/Npk1B2p/qn6/2bB1P1P/1qr1N1N1/n1Rr2r1 b - - 0 1 illegal: No proof kernel
2rN1N2/1K2k1qn/1B4r1/1BR1p1n1/b1pnPQ1N/3R1p2/2P1P2b/1bN1qRB1 b - - 0 1 illegal: No proof kernel
1B4q1/b1nqB2R/1Q2pB2/p2rnNrb/PbN3BK/3pPR1N/kP1Rn3/8 b - - 0 1 illegal: No proof kernel
1N6/q2R1P2/rpq2N2/n1B2bbp/NQ1rn3/1P1kRKRr/2p1R1BP/5B1q b - - 0 1 illegal: No possible last move
Q1qb4/2P1NN1R/2b1Bpp1/3Rp2B/n1Rr1Pbk/1n3Nr1/1b2P2r/B4K1N b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 g4 hxg4 axb5 Rh7 Be3 Rh6 Bc1 Rh8 c4 d5 h4 a5 f4 e5 b4 Ke7 b6 Kf6 b5 a4 h5 a3 h6 g6 b7 d4 c6 d3 h7 a2 c5 g3 c7 g2 b6 Bg7 c6 Nh6 Nc3 Ra6 Ne4+ Kf5 Nf3 Kg4 Ng3 g1R Qa4 f6 Bb2 Bf8 Rd1 Nf5 Ba1 Nd7 b8N Nd4 b7 d2+ Kf2 Ra7 Bg2 Be7 Rh5 Qg8 Nh1 Nb6 Rc1 d1B Rc4 Bd7 c8B Bd8 c7 Nb3 Nc6 Ra6 Qa5 Na4 Ne7 Rd6 b8R Rd4 Rb5 Bc2 Qa6 Bcf5 Rd5 Bc6 Be6 Qe8 Qb7 Qd7 Qa8 Qc8 Bf1 Rg3 Bg2 Bb7 Kf1 Bc6 Bc3 a1B Rh6 Re8 h8N Bb2 Rh7 Rg8 Nf7 Rh8 Rg7 Rh2 Rh7 Bc1 Ba1 Ba3 Nh4 Bb2 Bf3+ Kh3 Bh5 Bg4 Rc2 Ba3 Nf3 Bb2 Ng1+ Kh4 Rc1 Qa6 Rc4 Qc8 Nf3+
k4r2/br2B2b/1BNn3K/2R1BpQ1/n1p2N2/RnPqNPPB/1p6/n1q3R1 b - - 0 1 legal: proof: e4 d5 exd5 a5 h4 g5 b4 axb4 hxg5 Qd7 Qe2 Qd6 Qd1 Qd8 Ke2 Kd7 Kf3 c5 Kf4 Kc7 a4 b5 d4 Kb7 d6 h5 g6 e5+ Kf3 b3 a5 h4 g3 h3 g7 e4+ Kf4 h2 d7 c4 c3 e3 d5 b2 d6 e2 f3 e1N Ne2 b4 Rg1 h1Q Ra3 b3 Nd2 b1N Bh3 b2 Nf1 Nf6 Kg5 Ra7 g8N Ka8 a6 Ne8+ Ne7 Rb7 a7 Nc2 Nf4 Na6 Qd5 Nd2 Ne3 Nc5 Ra5 Na4 Rc5 f6+ Kg6 Bg7 Qg5 Na1 Nc6 Rf8 Kh7 Bh8 Kh6 Ndb3 Bd2 f5 Bc1 Bd4 Bd2 Qa5 d8B Be6 d7 Nd6 Be7 Bg8 d8B Bh7 Bb6 Qa6 Nd1 Bf2 Be3 Qb5 Bd4 Qb4 Be5 Qb5 Nd8 Qd7 Nc6 Qd8 Ne3 Qd7 Rg2 Qc1 Rg1 Qe6+ B7f6 Qd5 Be7 Qd3 Bc7 Qd5 Neg2 Nb6 Ra5 Qd3 Ra3 Bd4 Ne3 Na4 Ba5 Rb5 Bc7 Kb7 a8R Bc5 Ra5 Ba7 Bcd8 Ka8 Bc7 Rbb8 Rc5 Rb7 Bb6
bB6/R4pb1/P1kn1P1r/1b1R1rpR/1N1n1p2/N2BnqNp/3N2P1/2Q2BK1 b - - 0 1 illegal: No proof kernel
5B2/2N1n1bN/pk1Rp1pR/q1nB3Q/P1nP1N1R/6p1/3rP2B/1NK2brb b - - 0 1 illegal: No proof kernel
3B4/q1Nkn1R1/R2Nq1rb/1pN4b/2PrBpBQ/1Rp5/B1Pp1P2/bn3K2 b - - 0 1 illegal: No proof kernel
B2Q1B2/1KRbN2p/2NB1p2/2pPqNk1/2PR3P/1Rb2n2/rp5b/r2q1nN1 b - - 0 1 legal: proof: e4 d5 exd5 a5 f4 g5 b4 axb4 fxg5 Ra7 Nc3 Ra3 Nb1 Ra8 Ke2 e5 Kd3 Ke7 Ke4 c5 c4 b5 d4 f6 a4 b3 g4 b2 a5 b4 a6 b3 d6+ Kf7 Kd5 Kg6 a7 e4 d7 e3 h3 e2 Bf4 e1B Nc3 b1Q Ne4 b2 Ra3 Qc1 Ng3 Qc2 Rb3 Qe8 d8B Bf2 Nf5 Qd3 Bd6 Qee2 B8e7 Bh6 Bg2 Na6 Kc6 Qf1 Bf8 Bd7+ Kb7 Ne7 Bc6 Qe4 Rh2 Bh4 Rd2 Nb8 Rdd3 Kf7 g6+ Ke6 g5 Bg3 g7 Nd5 g8N Ne3 g6 Qe5 g7 Bh2 Qd2 Qd1 Nge7 Nf1 g8N Be3 Qa5 Bd2 Qd8 Bc3 Bh1 Kf7 Nc6 Kg6 Nge7+ Kg5 Be4 Na6 Bh1 Nc7 Be4 Ne6 Bd5 Rc8 a8R Rg8 Ra7 Ra8 Kb6 Rg7 Rc7 Ra2 Kb7 Rg8 Na5 Rh8 Bc6 Rg8 d5 Nd4 Rd2 Nf3 Rd4 Qde1 Ka7 Qd1 Ba8 Kh5 Kb8 Rg4 Ka7 Kg5 Kb7 Rg2 Nac6 Rc2 Rb6 Rc1 Rb3 Rca1 h4+
r7/RQqP1n2/2BQ1KnP/2R3P1/RB6/5k1p/4R1n1/N2rnrRN b - - 0 1 legal: proof: c4 c5 b4 d5 bxc5 b5 cxd5 a5 e4 f5 exf5 b4 a3 Qb6 axb4 axb4 c6 Qd8 g4 h5 g5 g6 h3 Bh6 gxh6 Ra7 Qf3 Ra4 Qd1 Ra8 Ba3 g5 Bd3 g4 Bb2 g3 Bf1 Ba6 Ba3 Be2 Bc1 Bg4 hxg4 Ra2 Qe2 Ra3 Qd1 Ra8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 e6 c7 b3 c8R g2 f6 h4 d4+ Kg6 f4 h3 g5 b2 d6 Na6 d7 Qb6 d8R Qa7 d5 Qh7 f5+ Kf7 d6 Qg7 d7 Nc7 Ne2 g1N Ng3 Nb5 Ra4 Rh7 Qd5 Ne7 Qb7 Ne2 Nd2 b1R Rc5 Nf4 Nb3 Ng2 Na1 Nd6 Bd2 Rd1 Re8 Qg8 Bb5 Ng6+ Kd4 Qh8 Bc6 e5+ Kd5 e4 Rg1 e3 Nh1 e2 Re3 e1N Re2 Rc1 Bb4 Qb8 Ra7 Qc7 Ra4 Kf8 Ke6 Rd1 Ra7 Kg8 f7+ Kh8 f6 Rg7 f8Q+ Kh7 Rea2 Nf7 Qd6 Rgg8 R2a4 Rgf8 Qh2 Ne7 Qd6 Kg6 Ba5 Kh5 Bb4 Ng6 Kf5 Nfe5 f7 Kh4 Kf6 Kg4 Ra2 Kf4 Re2 Kg4 Re4+ Kf3 Ra4 Rfe8 f8R Nf7 Ra7 Re7 Re8 Re5 Rec4+ Red5 Ree4 R5d2 Rc2 Rf2 Rca2 Rf1 R2a4 Rd2 Re8+ Rd5 Re4 Rd1 Re2+
1rr5/K2B4/3RBb2/p1P1rb2/q4QP1/nPBr1q2/1N2BkQ1/2R3NB b - - 0 1 legal: proof: d4 b5 e4 c5 h4 cxd4 f4 e5 fxe5 f5 exf5 a5 a4 g5 axb5 Be7 hxg5 Na6 bxa6 Bf8 Kd2 Kf7 Kd3 h5 Kc4 d5+ Kb5 d3 g4 h4 c4 h3 g6+ Kg7 e6 Kf6 a7 Ke5 g7 Kd4 c5 d2 f6 Ke3 f7 d4 b3 h2 e7 d3 e8B Qd4 Kb6 Qa4 Na3 Ne7 g8B Bg7 f8Q Nf5 Bd7 Nd4 Bb2 Bf6 Be2 Kf2 Bc3 Nb5 Nc4 Na3 Nb2 Rh5 Qb1 d1Q Bge6 d2 Qh7 Re5 Rc1 Qf1 Qh5 d1R Qh3 Rd3 Qfh6 Qg2 Qf4+ Qf3 Rd1 Bb7 Rd2 Rc8 a8B Be4 Ka7 Bf5 Bb7 Rde3 Rd5 Rd3 Rd6 Rb8 Qhh6 Kg2 Ba8 Qfe4 Nf3 Kf2 Rc1 h1R Bad5 Rh5 Qh7 Rg5 Qh3 Rgg8 Ba8 Rgc8 Ng1+ Qf3 Qb4 Qf4 Bh1 Qg3 Qf4+ Qf3 Qg2#
1qr1kNQ1/1p4RK/pR3pp1/Q2n2P1/2BPq3/1r6/PN4N1/NBnN4 b - - 0 1 legal: proof: f4 c5 b4 e5 fxe5 d5 bxc5 d4 h4 g6 h5 d3 h6 Bg7 hxg7 Qa5 cxd3 Ke7 d4 Qd8 d5 Ke8 d6 Bd7 c6 Qc7 g3 Bg4 d7+ Ke7 Bb2 Bf5 Bd4 Bg4 d8N Bd7 cxd7 h5 g4 h4 Bf2 Rh6 Bg3 hxg3 Rh4 Rh5 Rh1 Rh8 d4 g2 Kf2 a6 Kf3 Nh6 Kf4 Qc2 Kg5 Qc1+ Nd2 Ra7 g8B Qb2 e4 Qc1 e6 Qc5+ e5 Kf8 e7+ Kg7 e8Q Rh7 Ne6+ Kh8 d8N Qb5 Nb3 Qb4 Bd3 Nc6 Nh3 g1Q Nf8 Kg7 e6 Ra8 e7 Qg2 Rb1 Qe1 Qd2 Nb8 Nf2 Nf5 Nde6+ Kh8 Nf4 Kg7 Qa5 Rh6 Nd1 Qge4 Ng2 Nd7 Na1 Nc5 Rb6 Qg3 Bb1 Nb3 Qb8 Nc1 e8N+ Kh8 Re1 Rh3 Nd6 Kg7 Nc4 Ne3 Ncb2 Nd5 Re2 Qc7 Rc2 Qd6 Rc7 Rb3 Qe8 Rc8 Qe6 Kh8 Kh6 f6 Rg7 Qb8 Qe8 Nc3 Bc4 Nd5 Rc7 Kg8 g5 Qe7 Qd8 Kf7 Kh7 Rb4 Nd7 Qe4 Qg8+ Ke7 Nf8+ Ke8 Rd7 Rb3 Rg7
2n1N3/1KbBN2r/r3Qq2/PQBNbPR1/1N3kb1/4n3/1qP2q2/1n3RN1 b - - 0 1 legal: proof: e4 c5 g4 f5 exf5 h5 gxh5 a5 d4 Qb6 dxc5 Qd8 b4 b5 cxb6 axb4 Ke2 Kf7 Kf3 Kf6 Ke4 g5 Kd5 e5 f4 g4 a4 b3 h4 e4 a5 g3 h6 e3 b7 e2 h5 e1N h7 b2 h6 g2 Qg4 Bd6 Rh5 Nc6 b8N Nf3 Na6 Nce5 Nc3 b1Q Rg5 Bc7 Bb5 Qb2 Be3 Nc4 Nb4 Ra6 Bc5 Nfd2 Rf1 Nb1 Qe2 d6 Bd7 Qe7 Qh5 Qe1 Qe2 Qf2 Qe1 Ra7 Kc6 d5 Qe2 Ne3 Qb5 Be5 Kb6 d4 Kc6 d3 Ncd5+ Kf7 f6 d2 Kb6 d1Q Kc6 Qdd4 f5 Ba6 Kb6 Qdc3 Kc6 Ne7+ Kb6 Rha8 h8Q Nc8+ Kc6 Bc7 h7 Be5 Qd8 Rb7 Qdb6 Qd4 Qa4 Be2 Qab5 Bg4 Q6a6 Bc7 Qab6 Qe5 Q6a6 Qe7 Qab6 Ra6 h8N+ Kf8 Ng6+ Kf7 Nf8 Qee5 Ne6 Qec3 Ng7 Be5 Nh3 g1B Ne8 Bgh2 Ng1 Qd4 Na2 Bc7 Nab4 Bhe5 Rh5 Kg8 Rg5+ Kh7 f7 Kh6 f8N Rba7 Rg8 Kh5 Ng6 Kg5 Nge7+ Kh4 Nc3 Kg3 Rg7 Kf4 Rg5 Ra8 Kb7 Qd6 Qa7 Qf6 Qb8 Rd6 Qe2 Raa6 Qb5 Rd2 Qa7 Re2 Qab6 Re1 Qe6 Rd1 Bc6 Rd7 Ncd5+ Kg3 Ng6 Rf7 Nge7 Rh7 Nc3 Kf4 Bd7 Qf7 Qbb6 Qg6 Qb5 Qf6 Ncd5+
1nrB1r2/Nn1bPP1K/1QNNNP1R/b2q2bN/1BQ2nkr/qR6/8/8 b - - 0 1 legal: proof: g4 d5 a4 g5 c4 b5 cxd5 Qd6 axb5 Qd7 h4 Qd6 hxg5 Qd8 d4 f5 gxf5 e6 d6 Qe7 d5 Qf6 d7+ Ke7 d6+ Kf7 Bg2 Qd8 Bd5 exd5 Kd2 a5 Ke3 c5 Kf4 h5 e4 h4 b4 d4 f6 Ke6 g6 a4 Kg5 a3 f4 c4 b6 h3 g7 h2 Kg6 c3 f7 a2 f5+ Ke5 b7 d3 b5 c2 b6 d2 Na3 Kf4 e5 Ra4 e6 Rb4 Rb1 a1Q Nb5 Nh6 g8Q Nc6 b8N Qb2 b7 Qb3 Ne2+ Kg4 Ba3 Rc4 Bb4 Qa3 Rb3 c1B f6 Rc2 Qf1 d1N Ng3 Nc3 Nh5 Nf5 Qc4+ Bf4 Qh7 Nd5 e7 Bh6 Qg7 Rf8 Kh7+ Bg5 Qh8 Qda5 d8N Bd7 Ne6 Rc1 Qc5 Be5 Qc4+ Nf4 Qg8 Bc3 Qh8 Bc8 d7 Nd6 d8B Bd7 Qg7 Be1 Qg6 Rc3 Qgd3 Rc1 Qdd4 Bc3 Qb6 Qa8 Na6 Nb8 Nac7 Q8a5 Na7 Qd5 Ncb5 Rc2 Rd1 h1R Rd3 Rh4 Rh3 Nc6 b8N Nb7 Nd6 Bd2 Bc5 Ba5 Rh1 Nb4 Nbc6 Na6 Bb4 Rc1 Qd3 Rc5 Qc4 Nb8 Ncd4 Rc7 Ndc6 Rc8 Rh2 Rh3 Rh1 Rc3 Nhg7 Rc2 Rh6 Rh2 Nh5 Rh3 Rb2 Rh4 Rb3
bRR1Q1q1/5P2/rr2Qnb1/k2N4/2N1B1nQ/bq1P1KQ1/5P2/QbB1b3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 c4 b5 cxd5 f5 e4 Bg7 exf5 Bf8 a4 axb4 axb5 Qd6 Ke2 Qd7 Ke1 Qd8 Ke2 Kd7 g4 e5 d3 h5 b6 c5 f6 b3 f7 b2 d6 Kc6 g6 Kb5 g5 h4 b7 c4 d7 e4 g7 e3 g6 h3 Bg2 c3 Bf3 h2 Nh3 c2 Be4 Ba3 Nd2 b1B Nf4 Nf6 g8Q Ka5 g7 Rh6 Qe8 Ng4 g8Q Rb6 Kf3 e2 Nd5 e1B Qg6 Raa6 Qge6 Qg5 d8Q Qg8 Qg5 Nd7 b8Q Ndf6 Qg3 Bd7 Rg1 h1B+ Rg2 Bc6 Q5h4 Bb7 Ra2 Ba8 Rb2 Nh5 Rb3 Nhf6 Bb2 c1Q Rb4 Rd6 Rb8 Qc2 Bc1 Rdb6 Bb2 Ba2 Qa1 Qb3 Bc1 Bb1 Ke2 Nh5 Rg1 Bg2 Rf1 Bh3 Kf3 Nhf6 Rh1 Ne3 Rg1 Bf5 Rh1 Bg6 Rf1 Rc6 Nc4+ Ka4 Bd2 Neg4 Ncb6+ Kb5 Be3 Beb4 Rc1 Ka5 Bh6 Rd6 Rcc8 Be1 Bc1 Rc6 Na4 Rd6 Nb2 Rdb6 Nc4+
B2n2K1/Pbr2Rb1/P4R2/2k2Q1q/1rnRB3/5NP1/1N1pR1b1/R1r2Q1n b - - 0 1 legal: proof: e4 c5 h4 a5 d4 f5 dxc5 a4 exf5 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 a4 g5 hxg5 b6 a6 Nh6 a5 Kf7 a7 Ke8 a6 Ng8 Bd2 Qc7 Bc3 Qd8 Ba5 bxa5 Kd2 h5 Ke3 d5 Kf4 Kd7 Ke5 Kc6 f4 h4 c4 d4 g6 h3 g3 a4 f6 d3 g7 h2 f5 e6 f7 d2 f6 a3 Nc3 a2 Bd3 Qe8 Qf1 Rh7 Na4 Ne7 g8R Bg7 f8R Nd5 Be4 Qg6 Rf7 Bb7 Nf3 Qh6 Re1 a1R Rd8 Rc1 Re2 Qg6 Nb2 Qh5+ Bf5 Nb6 Rd4 Qh3 Rg1 h1B Bg6 Bg2 Bc2 Rh8 Bg6 Rd8 Rh1 Rd7 Be4+ Kc7 c6 Qh5+ Kf4 Re7 c5 Nc4 Rg1 Nd7 Rh1 Nf8 Rg1 Rb8 Rh1 Qh3 Kg5 e5 Rg1 Ne6+ Kg6 Qg4+ Kh7 Nd8 Kg8 Qh5 Rh1 Kc8 c7 Rd7 Bc6 e4 Bd5 e3 Be4 Bd5 Rg1 Rb4 Rh1 Re7 Rg1 Kd7 c8B+ Kc6 Bb7+ Kb5 c6 Kc5 c7 Bc6 c8R Rc7 Ba8 Bb7 Rb8 Bd5 Rb6 Bb7 Rf2 e2 Re6 e1N Re2 Ne3 Rfd7 Ng4 f7 Nd3 Qd1 Nge5 Rh6 Ra1 f8Q+ Kb5 Qe1 Nf2 Qf5 Kc5 Rf7 Nh1 Rhf6 Rd1 Qf2 Rb1 Rge1 Ra1 Qf1 Rd1 Qg4 Nc4 Qd7 Rc1 Qh3 Rc2 Ra1 Rc1 Qf5+
BNN1q3/q1NP3p/r2bB2K/5b1n/1Q6/2P1Qr1R/N1Pnq3/n2RN1k1 b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 hxg5 b5 a4 c4 axb5 c3 bxc3 d6 Ba3 Kf7 Bc5 Ke8 Bd4 Qb6 Bf6 Qd8 Be5 dxe5 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 Kh5 a5 g4 e4 f4 e5 d4+ Kd5 f6 e3 f5 Ke4 g6 e2 g5 Ke3 f7 Kf2 d5 e1N b6 a4 d6 e4 f6 e3 b7 a3 d7 a2 g7 e2 g6 Ra7 Qd4+ Kg3 Nf3 Ra3 Nbd2 Ra4 Nb3 Qe8 Qe3 Na6 b8N Bd6 f8N Nc5 f7 Nf6+ Kh6 Ba6 g8N Bd3 g7 Bf5 Rd1 a1Q Nc1 Nh5 Bg2 Nb3 Ne7 Ra6 Ne6 Rf8 g8B Qa5 Rh2 Na1 Na2 Qb6 Nc7 Qa7 Ng1+ Nf3 Nc8 e1Q Rh3+ Kg4 Bh1 Nd2 Ba8 Qf2 Nf3 Qe2 Rhh1 Kg3 Rh3+ Kg2 Ne1+ Kf1 Qg3 Q8e5 Qf3+ Kg1 Qf4 Rd8 f8Q Q5e4 Qe7 Rf8 Qeh4 Qe8 Be6 Be4 Qe5 Rf3 Qhf4 Bd3 Qb4 Bf5 Qe3+
k4q2/PB1pb3/2rP2n1/2q1r2b/KP1N2Rb/1NN2R2/1QQ1nN2/N5Bq b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 b5 g4 h5 gxh5 e6 f4 e5 fxe5 axb4 c3 b3 Qe2 b4 cxb4 Kf7 Qd1 Ke8 a4 g5 h4 c5 d4 c4 Kd2 b2 Kc2 g4 a5 c3 Kb3 g3 a6 g2 f6 c2 e6 Qc7 a7 Kd8 h6 Qc5 h7 Kc7 e7 Kb7 e8N Qb5 h5 Qc4+ Ka4 Qf7 h6 Be7 d5 Bd6 Rh3 Bc7 d6 Nc6 Rf3 Ne5 Ba6+ Kc6 Na3 b1Q Nh3 g1B Nf2 Ng6 Bb7+ Kb6 Ng7 Bh2 Nf5 Bg3 Nd4 Nf4 Be3 c1Q Nb3+ Qc5 Nc2 Qf8 f7 Ne7 Ra3 Bd8 Nca1 Ne2 Qc2 Rg8 h8Q Bh4 h7 Rg5 Qhb2 Qh1 h8N Re5 Ng6 Rb8 Nf4 Ng6 Rg3 Bde7 Rg4 Ra8 Bd5 Ba6 Bb7 Rc8 Bd4 Qg8 f8N Rc6 N8e6 Qf8 Be3 Bc4 Ned4 Be6 Qd2 Bf7 Qdc2 Nc1 Nfe2 Be8 Nc3 Ne2 Bf4 Bf7 Bh2 Be8 Ba6 Bf7 Bg1 Be8 Bc4 Kb7 Bd5 Ka8 Nb1 Nh8 Na5 Bh5 Rf3 Ng6 N5b3 Qd8 Bg8 Qf8 Nc3 Rc7 Bc4 Rc8 Ba6 Rc6 Bb7+
nR1Rq3/1kBQr1P1/1N3b2/2BK1R2/2P1R2R/r1rP3b/n1pQ4/1r4Nr b - - 0 1 legal: proof: b4 b5 h4 d5 e4 f5 exf5 g5 hxg5 c5 a4 d4 axb5 Nf6 Bc4 d3 Bb3 Ng8 bxc5 Nf6 c3 Ng8 Bc2 dxc2 Ke2 Kd7 Kf3 Kc7 Ke4 e5 f4 h5 g4 a5 d3 a4 g6 h4 g5 a3 g7 a2 f6 h3 g6 h2 f5 Rh4+ Bf4 Ra4+ c4 Bb7+ c6 Bd6 f7 Rg4 f8B Qe8 f6 Nd7 f7 Nb6 Nc3 Ra3 Qd2 Na8 Re1 a1R Na4 Bc8 Kd5 e4 Nb6 Be5 Bc5 e3 f8R e2 Rf5 Rc3 Bg3 Kb8 c7+ Kb7 Bf4 Bd7 c8R Bf6 Bc7 Re4 Rd8 Raa3 Rc8 Nh6 g8Q Nf7 g7 Nd8 Qf7 Nc6 Rd8 Bc8 Qd7 Re6 Na4 Re7 b6 Ka6 b7 Nb4+ Kd6 Na2 Nb6 Ka7 b8R Ka6 Kd5 Ka7 Ref1 e1R R1f4 Rb1 Rg4 Ba6 Rbc8 Kb7 Ne2 Bb5 Re1 h1R Rh4 Ba4 Ng1 Bc6+ Kd6 Bg2 Ree4 Bf1 Kd5 Bh3 Rb8+
1Bn4Q/1RK2nNR/3N3b/rQPQ3r/2P3Q1/rp1qb3/2QnP3/r3Bk2 b - - 0 1 legal: proof: f4 c5 b4 e5 fxe5 f5 d4 a5 dxc5 h5 bxa5 b6 g4 f4 Bh3 Bb7 Be3 Be4 Bc1 Bf5 gxf5 Qg5 Bg4 hxg4 Ba3 Qe7 Bc1 Qd8 Kf2 Kf7 a4 d5 c4 g5 h4 g3+ Kf3 d4 Ke4 f3 h5 b5 a6 g4 h6 b4 h7 g2 a5 g3 e6+ Kf6 e7 f2 e8Q f1R a7 d3 a6 d2 Nc3 Kg5 Ke5 Kg4 f6 b3 f7 Nf6 Nb5 Re1 Qc2 d1R Nd6 Bh6 f8B Ng8 Bd2 Ne7 Qb5 Nc8 Nh3 g1B Ng5 g2 Ne6 Kg3 Ng7 Kf2 Kd5 Nd7 Kc6 Rc1 Ra2 Red1 Be1+ Kf1 Ra4 Rb1 Rb4 Ra1 Rh5 Ra3 Rh2 Rb8 a8Q Bge3 a7 g1N Qab7 Rc1 a8Q Nf3 Be7 Rb1 Bf6 Rc1 Be5 Rca1 Qaa6 Ra8 Qab6 Qe7 Kc7 Nd2 Qd5 R8a5 Bf4 Qh4 Q6c6 Ne5 Qd7 Qf2 Qg4 Nf7 Bg3 Qf5 Bf4 Re8 h8Q Re5 Rh3 Qd3 Bh2 Bhf4 Rh7 Rh5 Qb8 Ne7 Rb7 Bh6 Qbe8 Nc8 Qb5 Qe4 Be5 Qd3 Ndf5 Bhg5 Kc6 Nb1 Bb8 Bh6 Kc7 Nd2 Nd6
1rR2k2/2Q3bP/1p1NRnRR/5Rb1/1B4nn/3N4/rPnPqB2/1r1Q3K b - - 0 1 illegal: Other
1NrR1b2/1n3PQ1/2b1KB2/NPknp1N1/BR6/Q2N2N1/2P2qbr/3nn3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 b5 a4 c5 axb5 f4 d4 cxd4 e3 Ba6 exf4 Bb7 f5 Bc8 Ke2 d5 Kd3 Kd7 h4 Kd6 f4 e5 h6 g5 h5 g4 f6 g3 a6 g2 f5 Ra7 f7 Qd7 h7 Qe7 h6 Qb7 f6 Qb6 Ra4 Kc5 Bg5 Nc6 Na3 Bg7 f8N Nd8 Nd7+ Kd6 Qg4 Qc6 Nb8 Kc5 Ne2 g1N Nc4 Be6 Rb4 Bf8 Na5 Bd6 Ng3 Rc7 a7 Nf3 a8Q Ne7 Bg2 Bg8 Rd1 Rc8 Bh4 Be6 Qg7 Nb7 Bh3 Bf7 Be6 Be8 Bf7 Qb6 Rd2 Rg8 h8N Bc6 Ng6 Rh8 h7 Qa7 Nf4 Ne1+ Ke2 d3+ Ke3 Qb6 Rd1 d2 Be6 Rhf8 h8N Rfe8 Nf7 Rh8 Bg5 Rh2 Bh4 Qa7 Ng5 Qb6 f7 Qa7 Rdb1 d1B Ra1 Bf3 Rd1 Bg2 Rd2 Nf3 Kd3 d4 Bb3 Nd5 Ke4 d3 Kf5 Be7 Ke6 Ne1 Ba4 Bf8 Rd1 d2 Nd3+ Kb6 Rdb1 d1N Rd4 Ne7 Rd8 Nd5 Rb2 Kc7 Rb4 Qf2 Nh3 Kb6 Bf6 N5c3 Ng5 Nd5 Qa6+ Kc7 Nc4 Qf3 Bb3 Qf4 Qa4 Qf2 Na5 Kb6 Qa1 N1e3 Ba4 Nd1 Nf4 Kc5 Qc1 Rc7 Qa3 Rc8 Nd3+
q4nb1/1N1NkpKN/1R4Qn/2B5/2n1n1P1/1PR1Q1Nb/B4Prr/2N3r1 b - - 0 1 legal: proof: Nf3 b5 Nc3 c5 Nb1 b4 Ng1 b3 axb3 c4 Nf3 c3 bxc3 Ba6 Ng1 Bc8 d4 e5 dxe5 g5 h4 Bb4 cxb4 gxh4 Kd2 a5 Kc3 d5 Kd4 h5 e4 h3 c4 h2 g4 a4 c5 h4 e6 a3 Ke5 d4 c6 h3 c7 d3 e7 a2 b5 d2 b6 Qd7 b7 Rh6 Nc3 Rh8 Bd3 Qc6 Nge2 Rh7 Bb1 Qa6 Ng3 Kd7 e8N Rh6 Qc2 d1N Ba3 Ne3 Rc1 h1B Nce2 Nc4+ Kf5 h2 e5 Bg2 e6+ Kc6 Bd6 Nd7 e7 Qa7 Nf6 Nf8+ Kg5 Bf5 c8N Bh7 Qg6 Rh4 Bb4 Nh6 Nd6 Bg8 Nh7 Kd7 Kf6 Re8 Rc2 Qa8 Kg7 Rd8 Rc3 h1N Nh5 Ng3 b8N+ Kc7 e8Q Rh2 Ba3 Bh3 Qe3 Ne4 Nb7 Rd1 Bc5 Rdh1 Nhg3 Rg2 Nd7 Rhh2 Bd3 Kc8 Rd1 a1R Bb1 Kc7 Ba2 Kc8 Rdd3 Rag1 Rd6 Kc7 Rb6 Kc8 Nd6+ Kd8 Nc1 Ke7 Nb7+
n5k1/3P2r1/Pp2PR1B/5qn1/2B1Nb2/KBB1Nn1q/b1Q1R1Q1/2B1r1n1 b - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 b4 axb4 g4 d5 gxh5 c5 cxd5 Ne7 d4 Ng8 dxc5 Ra7 Nd2 Ra6 Nb1 Ra8 Kd2 g5 Kc2 f5 Kb2 Kf7 e4 b3 a4 f4 h4 g4 a5 g3 d6 f3 e6+ Kg7 c6 g2 a6 b6 h6+ Kh7 e5 f2 h5 Qc7 e7 Bg4 e8B Nd7 e6 Qa7 c7 Ndf6 c8Q Qc7 Nc3 Be2 Qb7 Qf7 Nh3 g1N Ka3 b2 Ne4 Nd5 Qc2 Ngf6 Nf4 Nc7 Ba4 Bc4 Ra2 Ra7 Bb3 Na8 Nd5 Kg8 Ne3 Nh7 Be2 Bd5 Bec4 f1Q Rh4 Be7 Rf4 Qh3 Rf6 Ng5 Qc6 Qh7 Qg2 Q7f5 h7+ Kg7 Qc5 Rd8 h8B+ Kg8 h6 b1N+ Kb2 Bf8 Bg7 Nd2 Ka3 Ndf3 Re2 Rf7 Qc7 Be7 Bf8 Rg7 Qc5 Rc8 d7 Bd8 Qc6 Bc7 Qc5 Bf4 h7+ Kh8 Bd3 Rc6 Qc2 Rc3 Bc4 Rd3 Bb4 Rd1 Bbd2 Re1 Bc3 Rg6 B3d2 Kg7 h8B+ Kg8 Ba5 Rg7 Bc3 Re7 Bg7 Rf7 Bh6 Rg7 Bb5 Bc4 B3a4 Bb3 Bc4 Ba2 Bab3
n1N1r3/1qQ1PB1n/2N2nPR/1nn1q2N/PN1R2b1/4Q3/p1N1kr2/K5B1 b - - 0 1 legal: proof: f4 e5 h4 exf4 c4 g5 hxg5 d5 cxd5 Qf6 Kf2 Qd6 Ke1 Qd8 a4 b5 axb5 a5 Rh2 Nc6 Rh1 Nb8 Nf3 a4 Ng1 a3 Nf3 a2 Ng1 Ba3 bxa3 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Kd7 d4 Kd6 Kd2 h5 Kc3 f5 Kb2 c5 e4 h4 g6 c4 g5 f3 g7 f4 a4 f2 g6 f3 b6 h3 b7 h2 Qd2 Qf6 Na3 Nc6 b8N Na7 Na6 Bg4 Qe3 Re8 Nc2 Qe5 Nab4 Nb5 Ne2 Nf6 g8N Nh7 Ne7 Rhf8 Ng3 Rf5 Bg2 f1N Nh5 f2 Rb1 c3+ Ka1 Nd2 Nc8+ Kc7 Bh3 f1N d6+ Kb7 d5 Ng3 d7 Nc4 d8Q Nb6 d6 Rf2 d7 Na8 Rd1 h1Q Rd4 Qg2 Bd2 Qf3 Rh1 Qg2 Nd5 Kc6 Ndb4+ Kc5 Qa5 Qf3 d8N Qf7 Ndc6 Qb7 Rd8+ Kc4 Qc7 Qe7 e5 Ne4 e6 Nef6 Rh2 Qd6 e7 Qe5 Ne1 c2+ Rd4+ Kc5 Bf1 c1N Bc4 Nd3 Bc3 Rc2 Bf7 Rf2 Rd5+ Kc4 Nec2 Nc5 Rh3 Qf4 Be5 Qe4 Bh2 Qe6 Bg1 Qf5 Nd3 Qe5+ Rd4+ Kc3 Qg3 Kd2 Ndb4+ Ke2 Qe3+ Kf1 Ng7 Rg8 Rh6 Re8 Qh3+ Ke2 Nh5 Qa6 Qc3 Qb7 Qe3+
3Q4/r1RP1Q1p/3Pnr1b/3RR2n/1bBbbP1N/3N2RK/1Bb5/Rr1k4 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 g5 e3 f4 exf4 Be6 Qf3 Bg4 Qd1 Bc8 h4 g4 f3 gxf3 g3 Nf6 g4 Ng8 h5 Qd6 g5 Qg6 hxg6 Bf5 Rh5 Be6 Rh1 Bc8 Kf2 Kd7 Kg3 Kd6 b4 c5 d4 e5 b6 a5 b7 e4 b5 f2 g7 c4 b6 e3 g6 c3 Nf3 e2 Nfd2 e1B Bb2 c2 Nc3 c1R Bd3 a4 Nf3 a3 Na4 a2 Nc5 Bb4 Rh5 f1B Bc4 Nd7 b8R Ra7 b7 Bg2 Nh4 Be4 Nd3 Nc5 Re5 Nf6 g8Q Bh6 g7 Ne6 Qf7 Nh5+ Kh3 Rf8 g8R Rb1 Rg3 Bd7 Ra8 Ba4 b8R Bb3 Rb5 Bc2 Qg8 Rf6 Rc8 Ke7 d6+ Kd7 Re8 Kc6 Rbd5 Kb6 d7 Kc6 Rc8+ Kb6 Bb5 Ka5 Bc4+ Ka4 Qf7 Nd8 Qd2 Ne6 Ba6 Kb3 Rc7 Be7 Qa5 Bef8 Ba3 Bb4 Bc4+ Kc3 Bb2+ Kd2 Rdc5 Kd1 d5 Nd4 d6 Ne6 Rcd5 Rc1 Rb1 a1B Ba3 Bd4 Ra1 Rb1 Bb2 Rb7 Qa8 Ra7 Qd8
nB5N/qpknqq2/4r1bq/Pq1B4/3RB2B/2K1N2P/3RP1Q1/B2Q3q b - - 0 1 illegal: No possible last move
B1bBn3/4rrN1/3Q1nb1/2p1qN2/kP6/1BQR1Ppn/BKB1P2r/7R b - - 0 1 illegal: No possible last move, all moves rejected
1rBNn1Qk/1R1Q1nq1/1b1pB1P1/1Q1PQ1Q1/1qrP1K2/bN6/1q4Rp/8 b - - 0 1 illegal: No possible last move, all moves rejected
1Qk2n2/K1p1P1N1/4bP1r/Q1Pq2R1/N3b2N/p2bN1n1/r3B3/R1N1B1b1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 e4 f5 exf5 g5 h4 g4 a4 Qg5 axb5 Qf4 f3 Qh2 fxg4 Qh3 h5 Qxh5 g5 Qh2 Ke2 Kd8 Kd3 a5 Kc4 h5 b4 a4 g4 a3 b6 d5+ Kb5 h4 c4 d4 e6 h3 c5 d3 g6 d2 f6 Nc6 b7 Rh5 b8N Bb7 g5 Bc8 g7 Rh4 e7+ Ke8 g6 Qf4 Nd7 h2 Qe1 d1B Bd2 Bf3 Ne5 Bf5 Be2 Bh3 Nd3 Kd7 Nc1 Be4 Nf3 Be6 Rg1 h1B Nc3 Rh6 Nh4 Ra4 Rg5 Ra6 Na4 Nd8 Bc3 Rd6 Qd2 Nc6 Ka6 Ne5+ Ka7 Qf3 b5 Bd3 b6 Qd5 b7 Bhe4 b8Q Rb6 Ba5 Rb2 Qdb4 Rd2 Q4b6 Ra2 Be1 Rh7 Qa6 Nh6 g8N Nf5 g7 Ng6 Nh6 Ng3 N6f5 Rh6 g8N Bg7 Qa5 Nf8 Qb1 Kc8 Ne3 Rh7 Nh6 Rh8 N6f5 Bh6 Rg6 Bg5 Qbb5 Rh6 Ng7 Bf4 Qbb4 Be5 Rg5 Bd4 Ng4 Bf2 Ne3 Bg1 Qb8+
2b5/PR2P3/KQ2Rb2/RP2bb1r/1knp4/1N2R1RQ/r2q2pN/2BB2n1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Qa5 bxa5 Bc5 Qd2 Bd6 Qd1 Bf8 Kd2 Ke7 c4 d5 e4 f5 h4 g5 e6 Kd6 e5+ Kc5 h6 g4 h7 f4 e7 d3 Kc3 f3 e8R a3 a6 f2 a7 g3 e6 d2 h5 a2 h6 g2 Rh3 Ne7 Re3 Nec6 Nf3 Bb7 Nh2 Nd7 Be2 Be7 Qg1 f1Q Bd1 Rf8 h8R Qf2 h7 Nb6 Rg8 Ne5 h8Q Bf6 Qh3 Bc8 Rgg3 Nf3+ Kb3 Qe2 e7 Bf5 Rb8 Rd8 Qf2 Ng1 Rb7 Rd7 Ka3 Rh8 Kb3 Rh5 Ka3 Na8 Ka4 Nb6+ Ka5 Rd6 Ka6 Kb4 c5 Nc4+ c6 Be5 Bb3 d1B Nd2 Qe1 Ba4 Bdg4 Bd1 Rg6 Nb3 Qd2 Nf1 Bf6 c7 Bc8 Nh2 Bgf5 Re6 Rg4 Qd4 Re4 Qb6 Re2 Rb1 a1B Rge3 Bab2 Ra1 Bbe5 Ra5 d4 Rg3 Bd7 c8R Rf2 Rcg8 Bc8 Rh8 Qg5 Re3 Ra2 Rg8 Qh6 Rgg3 Qf4 Ref3 Qd2 Re3
R4R1Q/1PK1PRbb/1RnBqR2/1k3p1n/1r5N/p6N/n1B1b1P1/3Q3q b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 d5 a4 b5 axb5 e5 f4 exf4 c4 a4 cxd5 Ra5 bxa5 Bg4 Ra2 Bf5 Ra1 Bc8 Kf2 Kd7 Kf3 f5 d4 h5 e4 c5 g6 c4 a6 c3 b6 h4 d6 Kc6 b7 h3 a7 h2 a8R c2 e5 Rh6 d7 Ba3 d5+ Kb6 g7 Rf6 d6 Bb2 e6 Nc6 e7 Nb8 Nh3 Kc6 Bd3 Kc5 Nd2 Qc7 d8Q Qb6 d7 Nc6 Be4 Bc3 Ba3+ Kb5 Bd6 c1N Bc2 Na2 Qf8 Bd4 d8R Be6 Re1 Bc4 Re6 h1Q Rdc8 Rh6 Rf6 Rh4 Rf7 Nf6 g8R Rg4 Rg6 Nh5 Qh8 Bg7 Rcf8 Bb3 Rgf6 Qa6 Kf2 f3 Ke3 f2 Nf3 f1B Nh4 Rb4 Kf3 Bd3 Ke3 Bbc4 Kf3 Be2+ Ke3 Na5 Kd4 Bd5+ Ke5 a3 Rb1 Qc6 Rb3 Qc4 Rc3 Qb3 Rc6 Bdc4 Rca6 Be6 Bc5 Nc6+ Kd6 Qd5+ Kc7 Qc4 Rfd8 Qe4 Bd6 Qe3 Rff8 Bg8 R8f7 Qe6 Rdf8 Bh7 Rb6+
1QQ3q1/RP1B1k2/1pQQ3b/2rR1P2/4n2P/1n1B4/nKN1rnp1/2QrN3 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 b5 g4 Ba6 gxh5 Rh6 a4 Nc6 axb5 Rh8 b6 Bc8 b7 Nb8 Bb2 Nh6 Bc1 Na6 b8Q Ng8 c4 d6 b5 Nb4 b6 Na2 b7 Nc3 d3 Bd7 Be3 Na2 Bc5 Bb5 Bb6 cxb6 c5 Bc4 dxc4 Nb4 Qe2 Na6 Qd3 Rh7 Qd1 Rh8 Kd2 e5 Kc1 g5 f4 e4 h4 e3 f6 d5 c6 d4 c7 e2 c8Q e1N f5 g4 h6 g3 h7 g2 c5 d3 c6 d2+ Kb2 Nd3+ Kc2 Kf7 c7 Nf2 Nf3 Bh6 Kb2 Nb4 Na3 a5 Bd3 a4 Qc1 d1R Ne1 Ra5 Nac2 Rc5 Ra3 Na2 Qd7+ Kf8 f7 Nf6 c8B N6e4 Qc6 Kg7 Bd7 Re8 Rh3 Re6 Rf3 Qg8 Rg3+ Kf6 h8Q+ Ke7 Rg6 Ree5 Rd6 Re6 Rd5 Re5 Rc3 a3+ Ka1 Re6 Rc4 Re5 Ra4 Qg3 Qg6 Ng5 Ba6 Nc3 Be6 Re2 Bd7 Nge4 Qc6 Qg7 Qhc8 Qg8 Bd3 a2 Kb2 a1N Ra7 Na2 Qa4 Kf6 Qb5 Nb3 f8Q+ Qf7 Qfd6+ Qe6 Qh2 Qg8 Qhd6+ Kf7 Qbc6
B5b1/qr2q2P/R4Qp1/1b1Q1p1B/1BP2P2/R7/1rNN1bkq/b1BKB3 b - - 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 h4 b5 a4 Nh6 axb5 Bf5 h5 Ng8 h6 Bc8 g4 g6 Ba3 Nf6 Rh2 Na6 Qf3 Nh5 Bc1 Nc7 Qd1 Ne6 Rh1 Neg7 hxg7 Nf4 Be2 h5 Bd3 h4 Bf1 Nh5 gxh5 Qd4 Na3 Qd6 Nb1 Qd8 g8B Kd7 f4 Ke6 d4 Kf5 c4 e5 b6 a5 c6 h3 c7 h2 h6 e3 h7 Ke4 d5 f5 b7 a4 b8B e2 d6 a3 d7 a2 Bb2 Qe7 d8B Ba6 c8Q Ra7 Bb6 Bb5 Qd2 Rb7 Bd6 Bg7 Nf3 Bf6 Rg1 h1B Qe6 Bg7 Bf7 Rhb8 Bc1 Qh4+ Bf2 Qh2 Nd4 Bf6 Nc6 Kf3 Bb4 e4 Qdd5 Bg2 Kd2 e1B+ Kd1 Bb2 Bg3 Bf2 Qf6 Be5 Bd3 Bh1 Re1 Kg2 Re3 Bd4 Rf3 e3 Nd2 Bb2 Nd4 e2+ Kc2 e1Q Be2 Bc3 Be8 Bb2 Bc6 Bc3 Bd1 Qe7 Be2 Bb2 Kd1 Bc3 Nc2 Bb2 Rb1 a1Q Bh4 Qa7 Ra1 Be5 Ra6 Ba1 Rfa3+ Kg1 Qc5 Bd5 Bh5 Be6 Qd5 Bg8 Nf3+ Kg2 Bg3 Rb6 Ba8 R8b7 Bh4 Re6 Bg3 Re3 Bh4 Rb3 Bg3 Rb2 Bh4 Bd4 Bhe1 Bf2 Nd2+
3rr3/2rpn2R/1PN5/q3N3/1PRpnN1B/nqPQ2N1/NQ4B1/k1K2n2 b - - 0 1 legal: proof: d4 b5 e4 c5 f4 cxd4 a4 f5 exf5 Nh6 axb5 Ba6 f6 Bc8 g3 Ng8 h3 g6 f5 Bh6 Ra2 Bb7 Ra1 Bf4 gxf4 Bc8 Be2 g5 Ra5 g4 Bc4 g3 Bf1 Bb7 Ra2 Bf3 Ra1 Bg4 hxg4 Kf8 Rh2 Kf7 Rh1 Ke8 Kd2 Kf7 b4 a5 g5 h5 c3 e5 Ne2 e4 b6 g2 Ra4 g1R Bg2 h4 Ng3 e3+ Kc2 e2 Nd2 e1Q Nb3 Ra7 Qd3 Na6 Ra2 Nc5 g6+ Kf8 g7+ Kf7 Ba3 Qa1 Bc1 a4 Rh3 Ke8 f7+ Ke7 f8N Kd6 f6 a3 f7 Rc7 f5 Re1 f6 Qb1+ Kd2 Qa8 Ng6 Re5 f8N Ne4+ Kd1 Kd5 f7 Qa7 Ra1 a2 Ne6 Qa4 f8Q Qa7 Qc2 Kc4 Qf3 Qb2 Bg5 Qa6 Rc1 a1N Nef4 Qb5 Qcf2 Nc2 Ra1 Qc5 Ra5 Na3 Nc1 Re6 Nce2 Kb3 Qd3 Ka2 Nc1+ Ka1 Na2 Qb3+ Kc1 Qb5 Qfd2 Qa6 Rc5 Qa5 Rc4 Re7 Rh1 h3 Ngh5 h2 Ne5 Re8 Be7 Rd8 Ng3 Rh6 Q2e2 Re6 Bf6 Ree8 Bg5 Ne7 g8N Nc6 Qec2 Qa6 Ne7 Qa5 Nc8 Ne7 Na7 Nd2 Nac6 Nf1 Rg1 h1N Qce2 Nf2 Rh1 Nb5 Rh7 Na3 Bh4 Ne4 Qb2+
1N3q2/3p4/Prr3pR/5B2/nn2nNr1/2P1Q2K/P1b1pBBR/2Q1Bk1B b - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 b4 hxg4 bxa5 c5 dxc5 f5 e4 Bd6 exf5 e4 Qf3 Rh3 Qd1 Be5 fxe5 Rh8 Kf2 Ke7 Kg3 b5 h4 e3 c6 b4 a6 e2 c7 b3 e6 Kf6 h5 Ke5 h6 Ke4 f6 b2 c3 Qe8 h7 Nh6 e7 Qh5 e8B Qc5 f7 Qg5 f8Q Qc5 Bd2 Nc6 Qf2 Rb8 Nh3 Nf7 Na3 b1N Nf4 Qf8 Nc2 Rb6 Be1 Nfe5 Bh3 Nb4 Qc1 Ned3 Bh5 g6 Nd4 Nc5 Rh2 Na4 Nc6 Nd2 Nb8 Bb7 c8B Ba8 Kh4 g3 Bb7+ Rc6 Be6 g2 Kh3 g1R Qg3 Rg2 Bf3+ Ke3 Bf5 Rg1 Qg5 Rg4 Rb1 Rg8 h8B Rb6 Bbe4 Bd5 Bh1 Bb3 Bef3 Bc2 Qh6 Qd6 Bf6 Rc8 Bfh4 Qf8 Qg5 Nd5 Rb5 Nb4 Re5+ Be4 Re7 Rcc6 Rh7 Bd3 Rh6 Bc2 Qa3 Ne4 Bef2+ Kd2 Qe7 Ng3 Qe3+ Kd1 Bg1 Ke1 Bf2+ Kf1 Qac1+ Bd1 Be1 Ne4 Bhf2 Bc2 Bfg2+
2B1nk1b/1R1b3n/1R1N3p/1qpK1Q1p/1P2r3/1B3B2/P2bq1P1/B1Q2N1B b - - 0 1 illegal: Other
8/Q1b2r1P/5pBp/Np1n3b/2RrQ1k1/KQ1Qr1B1/NQ3PRP/2n4b b - - 0 1 legal: proof: a4 b5 axb5 c6 b6 Ba6 Nc3 Bb7 Nb1 Bc8 b4 e5 d4 Ba6 dxe5 Bc8 b5 cxb5 bxa7 d5 g4 d4 g5 Qf6 Bb2 Qe7 Bc1 Qd8 Kd2 h6 Ke1 Qd5 Bh3 Qc6 Bf1 Qe4 Kd2 Qf5 Ke1 Qh7 g6 Bd6 gxh7 Bf8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 Kb2 g5 e4+ Ke6 c5 g4 c6 f6 c7 d3 Nc3 g3 Ra4 d2 Nf3 g2 Na2 g1R Qb3+ Kd7 e6+ Ke7 e5 d1B Bd3 Bb7 c8Q Bc6 Nd4 Rg2 Rc4 Rg3 Rg1 Be2 Ka3 Na6 Rg2 Bh5 Bg6 Nb4 Bf4 Re3 Bg3 Nd3 Qb2 Bb7 Nb3 Nc1 Qc6 Rd8 a8Q Rd7 Qe4 Rd4 Qd3 Be4 Na5 Bc6 Rg1 Bh1 Qf3 Kd8+ e7+ Kd7 Rg2 Ke6 Rc3 Rb4 e8Q+ Ne7 Qea8 Nd5 Rc8 Bd6 Rc4 Bc7 Qa7 Rf8 Qd1 Rf7 Q1b3 Kd7 e6+ Ke7 Rh4 Rd4 Rf4 Kd6 e7 Ke6 e8Q+ Re7 Bf7+ Ke5 Re4+ Kf5 Bg6+ Kg5 Re6 Rd7 Rc6 Kg4 Rc4 Rf7 Qee4+
3R1Q2/1p1NN2p/6q1/NNP4B/qP2Np2/2rRr3/1kb1p1PQ/B1n1Kb2 b - - 0 1 illegal: No possible last move
1n2R1nR/Q4PK1/4p1Rp/1B1p4/3p3P/R3RNPr/Bq2Q3/rN1kr1r1 b - - 0 1 legal: proof: f4 g5 a4 f5 e3 b5 axb5 Bg7 fxg5 f4 Ra2 f3 Ra5 Be5 Ra1 Bf4 exf4 c5 d4 Nh6 c4 Qc7 d5 Nf5 Be3 Ng7 Bd4 cxd4 c5 Qd8 c6 Nf5 c7 Nh6 Qb3 Bb7 Qd1 Bc6 dxc6 Ng8 Kd2 Kf7 Kd3 Ke6 Ke4 a5 c8B f2 h4 h6 b4 a4 g3 a3 b6 a2 b7 Ra4 f5+ Kd6 b5 Kc5 Ke5 Kb4 g6 Rh7 f6 Na6 b8Q Qf8 c7 Rh8 b6 Qg7 b7 Rh7 Nf3 Ra3 Qa7 Qh8 g7 Nb8 Bb5 f1R Qe2 Kb3 f7 d5 Bf5 Rg1 c8R e6 Rh2 Rh1 Rf2 Rh3 Re8 Ra6 Rh2 Rc6 Rh1 Rc1 Re1 Rd1 Bc2+ Kb2 Bb3+ Kc1 Rg1 Re1 Rg2 Ne7 Kf6 Qf8 g8R Rh8 Rg5 Ng8+ Kg6 Qb4 Kg7 Qd2 Rg6 Qb2 B3c4 Nc6 b8R Rg1 Qe4 Kd1 Re2 Re1 Ra8 Nb8 Re3 Nf6 Re7 Rc8 Re8 Rc7 Rh8 Ng8 Bb3+ Rc2 B3c4 Rc1 Qe5 Nd7 Re8 Nb8 Qh5 Rc2 Qg4 Rg2 Qe4 Rgg1 Qd3+ Kc1 Qe2 Qb4 Nbd2+ Kc2 Rb1 a1R Ba2 Qa3 Rbb3 Qb2 Rbd3 Kc1 Ra3 Kc2 Nb1+ Kc1 Qg2 Kd1 Qe2+
q1RKQ1b1/1bRb4/1k2r3/1bNNP2P/Q1n1R1nr/R2PbBB1/2q2R1n/8 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 c5 Kf4 Kc7 h4 b5 e4 g5+ Kf3 f5 a4 g4+ Kf4 g3 d6+ Kb6 e6 c4 Ke5 b3 h6 b2 h7 g2 e7 f4 e8R f3 d7 b4 Ke6 b3 Ne2 g1N Nbc3 b1B Ra3 b2 Nf4 f2 Bg2 f1B Bf3 Ra6 Rh2 Bb7 Rf2 Bh6 Nd3 Be3 Nc5 Nf6 e5 Bbd3 Re7 b1B Rg7 Qg8+ Ke7 Ng4 d8R Ba2 Rd4 Bf5 Re4 Nd7 Rf7 Qa8 a5+ Kc6 Nd5 c3 Qc2 Nb6 Qa4+ Bb5 d3 c2 Bd2 c1Q Be1 Bd7 h5 Qc2 Rg7 Rg8 h8Q Nc4 Rf7 Rb6 a6 Rf8 Rh7 Rf4 a7 Ra6 Qe8 Bb3 Be2 Nf3 Rf7 Nfh2 Bf3 Nh6 Rh7 Rh4 Rf7 N6g4 Rg7 Qb8 a8R Qa7 Rb8 Qa8 Kd8 Ba2 Nc3 Kb6 Rc8 Na5 Re7 Bg8 Rg7 Nc4 Re7 Bf5 Rc7 Bfd7 Nd5+ Ka7 Re2 Na5 Nf4 Re6 Bg3 Kb6 Rf2 Nc4 Nd5+
qBq5/3n1RQQ/3b4/1Kb3RR/2N1PRRb/1nP2B1r/2nq1r1P/1N1b3k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kg4 e6 f5 h6 a5 b6 d5+ Kb5 g5 b7 a4 h7 f4 e4+ f3 e7 d3 e8Q d2 Be2 d4 Bd3 a3 Qe2 d1Q Qc6 a2 Qf2 Qd2 Qg6 Bd6 Bc4 d3 Qe8 Nd7 b8R Nc5 Qe3 f2 Qc6 f1N Qf2 Nf6 Nf3 Kh3 Qd4 Kg2 Qb7 g4 Ne5 Ne3 Rf1 g3 Rf4 Nfd7 Qc7 Qc3 Rb7 d2 Be2 d1Q Nc4 Nb3 Qg7 Kh1 Bf3+ g2 Ba3 Rf8 h8R Qdd2 Rh5 Ra4 Bb2 Ra3 Qh7 Qh8 Bd4 Rf6 Ba7 Qdg8 Bb8 Qg4 Bd1 g1B Ra7 Qe6 Rg4 Rf2 Bf3+ Rg2 Rf4 Bf2 Rg5 Bh4 Rgg4 Bc5 Qe5 Qed5 Qeg7 Qa8 Rc7 Nb6 Rg5 Bg4 Rcf7 Qc8 Rh5 Nd7 Rg5 Na5 Rh5 Rd3 c3 Nc2 Ka4 Bd6 b5 Bc5 b6 Nb3+ Kb5 Re3 Bd1 Rh3 b7 Rf2 Bf3+ Rg2 R7f5 Ne5 Rfg5 Nc6 Nba3+ Qd1 Bc7 Nb8 Be2 Rf2 Rc1 Qe1 Nb1 Bd6 Rd1 a1B Rd3 Qd1 Rg3 Bb2 Rg2 Bf3 R2g4 Qd2 Bd1 Bba3 Be2 Na6 b8R Bac5 Rb7 Nb8 Bd1 Nd7 Ra7 Ne5 Bb8 Be2 Raf7 Bf3 Be2 Nd7 Bf1 Bd1 Bd3 Nc1 Be2 Nb3 Bf3+
2B1R2R/br5R/1B5n/1r1qQN1P/NPbrR2Q/n1q4q/P1Rrb3/2K2k2 b - - 0 1 illegal: No proof kernel
3N1q2/4b1N1/1R1NQ3/1b2qPPn/3B1rR1/QB2bn1P/b2k2K1/1nr1rN1N b - - 0 1 illegal: No proof kernel
1qnkR1Rn/5b1B/2r2n2/N2P2P1/N2BP1Q1/bN3q2/N5bN/KQ1br2q b - - 0 1 illegal: No possible last move, all moves rejected
rb6/2qB4/b1qr1rR1/1P2nNP1/R1RB1k2/1RP1q2q/1KQ1nN2/Rb4Q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 b4 h5 f4 a5 g4 e5 g6+ Kf6 g7 d5 b6 a4 b5 d3 Kc3 e4 b7 a3 Ne2 e3 Ra2 h4 Ng3 d4+ Kb3 e2 c3 e1Q Rf2 h3 Re2 h2 Bh3 d2 Qc2 d1R Nd2 a2 Kb2 Nd7 b8R d3 Rb6+ Bd6 Ra6 Qe8 Ra4 Ne7 g8Q Ng6 Rg2 Nde5 Nde4+ Ke7 Rgg1 d2 Nf2 Bb8 f6+ Kd6 f5 Rh6 f7 Qe3 f8R Nf4 f6 Qc6 f7 Ba6 Rc8 Ne2 f8R Rf6 Rf7 Kd5 Rg7+ Kd6 Rg6 a1Q+ Kb3 Qc7 Qg7 Kd5 Nf5 Qb1+ Ka3 Qb4+ Ka2 Qbd6 Kb2 Qdc6 g5 Ke6 Rgg4 Kd5 Rgb4 Ke6 Rf1 h1Q Rb3 Qh2 Bg4 Qhh3 Qh6 Kd5 Qh4 Ke6 Qg3 Kd5 Qg1 Ke6 Nd4+ Kd6 Bd7 Kd5 Nd3 Ke4 Nf2+ Kf4 Re8 Re1 Rc8 d1B Nf5+ Kf3 Qd3 Bc2 Qd1 Be4 Qc2 Rd1 Re1 Rd4 Bd2 Rdd6 Rea1 Qec5 Be3 Q5b6 Qcd1 Bb1 Bd4 Kf4 Qc2 Qe4 Rc4 Qee3 Raa4 Qcc6 Rc7 Qa5 Ra7 Qac7 Ra1 Bb7 R7a3 Ba6 Raa4
3b4/r1b2kB1/3PRQn1/2n2Rn1/q2BBN2/2r1nP1B/P2qQ2K/2NbBr2 b - - 0 1 illegal: No possible last move, all moves rejected
1BR1Q1b1/Pnq1n2r/3R1PR1/q3N3/2Q4r/2NKPR2/B4bb1/R3bnrk b - - 0 1 illegal: No proof kernel
1b2NkQ1/4nq2/1QN2bn1/2Nrn1P1/PBb2R2/bb1r2R1/3NbK1P/2NB4 b - - 0 1 illegal: No proof kernel
B3b3/b3bQB1/n1n5/rPq4b/R1PBb1B1/B1Qr2NN/4b1Pk/1Kn2R2 b - - 0 1 illegal: No proof kernel
R1Q3Q1/3n1br1/2n2bq1/q1n2PkP/N7/BN2P1rB/1BK1n3/1Bn2RnB b - - 0 1 illegal: No proof kernel
1R6/1Q2BBRb/1P2bb1Q/bKBN1n1P/2BP2Nr/rn3B2/k3n3/b3nq2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 d4 Ke7 Kd2 f5 Kc3 g5 Kb4 a5+ Kc4 c5 b4 a4 h4 a3 e4 f4 d6+ Ke6 b6 a2 d7 g3 b7 f3 b5 f2 b6 g4 Bb2 g2 Na3 g3 Be2 f1B Rb1 a1B Nh3 g1N Nc2 g2 Ba3 Nf3 Ne3 g1N Qc1 Na6 b8Q Qf6 d8B Ne7 Nf2 Bg7 Kb5 c4 Qb7 c3 Qd2 c2 h5 Rg8 Re1 c1B Rh4 Ra7 Rg4 Nc5 Bb4 Ra3 Rg3 Nb3 Bc5 Na5 Bd3 Qf8 Re2 Ne1 Rg5 Kf7 e6+ Kf6 Rg3 Bcb2 Rg4 Bc3 Rg5 Bh8 Rg2 Rg4 e5+ Kg5 Rg3 Kf4 Bc4 Rh4 Nd5+ Kf5 Rg8 Nb3 Qh6 Ba5 Re4 Bg2 Reg4 Ne2 R4g6 Be4 Ng4 Nc6 e7 Be6 e8B Qf6 Nc3 Ne7 Bf7 Bd3 Nd5 Ke4 Rf8 Qf1 Re8 Bf6 Rg7 Kf3 Rf8 Bh7 Re8 Nf5 Bde7 Ke4 Rb8 Nbc1 Bb3 Kd3 Ba2 Kc2 Bc4 Kb2 Bg6 Ne3 Be4 Bef5 Bf3 Bc8 e6 Nb3 Bf8 Nf5 e7 Kb1 e8B Ka2 Bfe7 Be6 Bf7
1n1KbQ1B/r1n1P3/1bB1rPb1/N3RBB1/1q1k1rPb/7B/bR4N1/r2Q4 b - - 0 1 illegal: No proof kernel
q1q2nn1/1QR2K1Q/B1P4r/3r2N1/B2bb1PR/6q1/2PBBnB1/k2n2Nq b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kd2 Ke7 Kd3 Ke6 Ke4 f5+ Kf4 d5 e4 b5 a4 h5 g4 d4 c6 b3 a5 b4 a6 d3 a7 h4 g6 b2 g7 b3 Qe2 d2 Ra5 d1N Ra6 h3 Qd3 h2 Be2 Nd7 Nc3 b1Q Bd2 b2 Qb5 Nf2 Qb7 Bc5 Ra1 Qf8 Kg5 f4 Kg6 f3 Ra5 Rb8 a8B Bd4 Ra3 Qa2 Ra7 Ke7 e6 Kd6 e7 Ke5 e8B b1Q Bf7 Qe1 Bd5 Rh6+ Kg5 Qe8 Bb3 Nf8 Ba4 Ne7 g8B Bf5 Bf7 Rd8 Bd5 Ng8 Qh7 Nd1 Bb7 f2 Bba6 f1Q Rb7 Qg3 Rc7 Kd6 e5+ Kc5 e6 Kb4 e7 Ka3 Bg2 Kb2 Ne4 Rd5 Qg6 Qaa3 Qh7 Qc8 e8Q Ka1 Qee7 Qff3 Qb4 Qa2 Qb7 Qf1 Bb3 Qa5 Ba4 Qff3 Bac4 Qaa8 Ba6 Qf1 Nd6 Qfe1 Nf7 Be4+ Qf5 Re6 Nh3 Nb2 Kh5 Qg1 Nfg5 Qb1 Qh7 Red6 Rc1 h1N Re1 Nf2 Rh1 Qc1 Rh2 Qh1 Ng1 Nbd1 Rh4 Nf6+ Kh6 Re6 Kg7 Ng8+ Kf7 Rf6+ Kg7 Rh6+ Kf7
KR3Q2/NB1B2Q1/1k5r/nbPBbP1B/2P2p2/N3n1R1/qn6/1qr2rBq b - - 0 1 illegal: No possible last move, all moves rejected
2r2bq1/3b1N2/1kN1nqPP/B2B3R/1n1qn3/K1b2N1p/Q1N3RP/1r3QN1 b - - 0 1 illegal: No possible last move
2N2B2/7q/1N1b1pr1/1PPKNQ1R/1qQn2nr/3b4/2R1qPkN/r1n2BN1 b - - 0 1 illegal: No possible last move
1bqN2qb/1q4nr/nBQ2p1P/1BB2R2/P1r2r2/3Q2N1/2RPbB2/2K1kB2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 Kd7 a4 b5 h4 c5 e6+ Kd6 e7 Ke5 e8Q+ Kf4 d6 Kg3 d7 g5 h6 g4 h5 b3 h7 f6 e5 c4 h6 c3 e6 b4 e7 c2 Bg2 b2 Rh5 b3 Re5 Ba6 Qe2 Bg7 Na3 b1R Ra2 b2 Rf5 Ra1 Qb5 b1Q Bf1 Qb4 Qc6 Qb7 Qg6 Be2 e8B Na6 Nc4 Ne7 Ne5 Rc8 Nf7 Rc7 Rb2 Ra3 Ra2 Rf3 Ba3 Rf4 Bc5 c1B Bb6 Qdc8 d8B Ba3 Rc2 Bd6 Ba7 Bc4 Kd1 Be2+ Kc1 Be5 Qe4 Rc4 Bb5 Bc7 Qc6 Bb8 Rc5 Kf2 Qd3 g3 Bdb6 g2 Nd8 Ke1 Rf5 Bd1 Ne2 g1Q Ng3 Be2 Rc5 Nf5 Re5 Rf8 h8B Rf7 Rd5 Bf8 Re5 Rh7 Bg7 Qg2 Bh8 Qd5 Bg7 Qg8 Rd5 Bfd6 Bf8 Ng7 Rf5 Bb4 Bd6 Bc5 Be5 Bf8 Bed4 Ne6 Bh3 Bg7 Bf1 Bh8 Bbc5 Ng7 Bab6 Qce6 Bg1 Qec8 Bgf2+
5r1k/Q2n2R1/3PBQ2/1p2rnbr/3Nq1r1/1N1bP1PR/K4RRR/1rB4b b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 d4 b5 Kd2 c5 Kc2 f5 Kb2 Kf7 a4 Kg7 a5 h5 a6 f4 g3 b3 e3 h4 e6 f3 e7 h3 e8R h2 d6 f2 d5 c4 d7 Bb4 g6 Qa5 d8Q Qa4 a7 Nd7 Ne2 Rh5 Nd2 Nh6 Ra2 Be7 d6 Bg5 Rh8 Nf5 Bh3 f1R Nd4 c3+ Kb1 b2 N2b3 Rb8 a8R Rf4 Rh6 Rg4 Qf6+ Kg8 g7 Qb4 Rf1 h1B Rf2 Bcb7 Qf3 Rf8 R8a5 Ba8 Qb7 Qc4 Qa7 Bae4+ Nc2 Qd5 Rh2 Qb7 R5a4 Bd3 Rf4 Qe4 Rff2 Qe6 Ra3 Qe7 Ka2 b1R Ncd4 c2 Ra6 Qe4 Rc6 Bf1 Rc3 Be2 Rd3 Bf1 Rdd2 Bd3 Rfg2 Bf4 Rdf2 Bg5 Bb2 c1R Rh7 Rc5 Bc1 Re5 Rh6 Rf4 Bg4 Ne7 Bf5 Rg4 Be6+ Rf7 Rh3 Nf5 Rhh2 Rh3 Rg6 Kh7 g8R Rf8 R8g7+ Kh8 Qc7 Rh7 Rgh6 Rd8 Qb8 Rf8 R6h3 Rh5 Qa7
1rQ5/2Qn2b1/PR2r1r1/3k1bR1/RN1Bn2q/n2Rp2P/nN2KP2/R2n3B b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 a4 Kd7 d4 Kd6 h6 c5 f6 b5 a5 g5 h3 e5 h7 c4 a6 e4 f7 b3 Bb2 b4 Ra4 e3 Qc2 c3 Ne2 g4 Nf4 g3 Na3 g2 Ke2 g1R Bg2 Qf6 Nd3 Bg7 f8R Qh4 Rf5 Nf6 Rg5 Re8 h8R Re6 Rh6 Nbd7 Be4 Rg2 Ra1 Rb8 Qc1 Rg1 Bh1 c2 Bc3 b2 Nc4+ Ke7 Rhg6 b1N Ncb2 b3 Nb4 Na3 d6+ Kf7 d5 Ne4 Bd4 Rg3 Nc4 b2 Rh6 b1N Nb2 Nb6 d7 Nbc3+ Ke1 Nd1 d8Q Rg4 d6 Nd7 Ke2 Rg3 Qc7 Rg1 Qd2 Rg4 Qdc3 c1N+ Ke1 Na2 Ke2 Bb7 Qc8 Ba8 Q3c7 Rg3 Rb5 Rgg6 Rb6 Bd5 Rh5 Bb3 Rg5 Bc2 Rc6 Nd2 Rb6 Bf5 Qc2 Ne4 Q2c3 Ne5 d7 Ke7 d8R Kf7 Rd5 Nd7 Q3c7 Ke7 Bc5+ Kf6 Rdd6 Ke5 Rd3+ Rd6 Nc6+ Ke6 Bd4 Kd5 Kf3 Rdf6 Ke2 Re6 Nb4+
K5b1/2bB2Q1/nP3r2/1Q1n3B/B2nqkpb/PB1R1N2/5PnB/r1N2Rr1 b - - 0 1 illegal: No possible last move
3NnrRr/4rN1q/B1K1NNbN/6br/5Bq1/3PnPPR/2p3k1/1Q1Q1r2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 b4 c5 f6 a5 f3 h5 b6 a4 b5 c4 f7 h3 b7 c3 d3 h2 b6 c2 Qe2 a3 Qd1 a2 Bh6 h4 Qe1 h3 Ne2 Qd7 Nd2 Ne7 Qd1 Qg4+ Bf4 Nd7 b8N Bh6 f8N Bg5 b7 Nf5 Nc6 Ne3 b8Q+ Kc5 Rg1 h1R d6 h2 Ng3 Bb7 Rc1 a1R Nf5 Bc8 Qb1 Bb7 Nh7 Raf8 Nf6 Rh5 Nh6 Raa8 g3 Rh8 Bh3 Raf8 Re1 Rf1 Nc4 h1Q Nd5 Qh2 Nd4 Bc6 Re2 Ba4 Nf6 Bb3 Na5 Bf7 Nac6 Qh1 Nd8 Bg6+ Nhf5 Nb6 d7 Na8 Nf7 Nc7 d8N Ne8 Qa2 Kb4 N4e6 Kc3 Rb1 Qh2 Rb8 Qh1 Qdb1 Qh2 Re1 Kd2 Qaa1 Qh1 Rc1 Ke2 Ra8 Kf2 Rc8 Nd1 Kd5 e4 Kc6 e3 N5h6 e2 Rb8 Ne3 Rd1 e1R Rd2+ Kg1 Rh2 Bh4 Qd1 Bg5 Qab1 Qh4 Bf5 Qg4 Rh3 Kg2 Rc8 Nc4 Ra8 Re5 Be4 Ne3 Bd5 Qh2 Bc4 Re4 Ba6 Qh1 Nd4 Re7 N4e6 Nd6 Nf5 R5h6 Nb7 Rfg8 Rh4 Qhh3 Rf8 Ne8 Nbd8 Qh5 Qb8 Q3g4 Rh3 R6h7 Qbb1 Qh6 Qdc1 Qg7 Qd1 Rh5 N5h6 Qh7 Nd6 Rgg7 Rg8 Rgf7 N6b7 Rf8 Nd6 Kf2 Nd6f7 Kg1 Rh4 Kg2 Rh3
4r3/P3Qp2/3r2R1/rqq1n3/rB1NB1P1/2Nk1PN1/b1R3Q1/nb1N1KNr b - - 0 1 legal: proof: c4 g5 d4 a5 h4 d5 hxg5 Bg4 cxd5 Bf3 b4 axb4 d6 Bg7 d5 Bd4 e3 Bg4 exd4 Bc8 g4 Kd7 a4 c5 f3 b5 g6 e5 a5 h5 g7 b3 a6 h4 Bc4 b4 Be2 h3 Bg5 b2 Qd2 e4 Ra5 h2 Bf4 b3 Bg3 e3 Ra2 c4 Bd3 c3 Qg2 c2 Kf1 c1R+ Be1 Rh6 Be4 Qb6 Nc3 b1B Nd1 b2 Bb4 Nf6 g8N Qc5 Ne7 Rc4 Nf5 Nc6 Ng3 Na5 a7 Nb3 Ra6 Na1 Rb6 Ba2 Rc6 b1Q Rc7+ Ke8 d7+ Ke7 d8N+ Kd6 Nc6 Bf5 Ne7 Nd7 Rc8 Rh5 Rg8 Ne5 Rg6+ Kc7 d6+ Kb6 d7+ Kb5 d5 Rd8 d6 e2+ Ke1 Rd4 Nd5 Kc4 Nc3 Re8 Kf2 e1R d8Q Qb3 d7 Rd6+ Ne3+ Kd4 Qe7 Qbc4 d8N Q4b5 Ned1 Rg5 Bc6 Bfb1 Ne6+ Kd3+ Nd4 Re4 Kf1 Rh5 Ne6 Rc4 Nd4 Rg5 Ba5 Ra4 Bb4 Rf5 Be4+ Kc4 Bc2 Qc7 Nf2 Qd5 Ke1 Nd7 Ngh3 Qb6 Rf1 h1R Ng1 Qdb7 Ke2 Rfa5 Rc1 Qc5 Nfd1 Ne5 Be4 Qd7 Kf1 Qdb5 Bb7 Kd3 Rc2 Re6 Ba8 Rd6 Be4+
2R1rqRn/5Nrk/1K1Q2bq/r5b1/P2p2Bb/3BQ2P/3BBN1P/3bn2B b - - 0 1 legal: proof: d4 a5 f4 h5 b4 c5 dxc5 e5 fxe5 axb4 Bd2 h4 Bc1 h3 gxh3 Ra6 Bd2 Ra7 Bc1 Ra8 Kf2 g5 Ke3 d5 Kd4 b5 e4 f5 a4 Kf7 c4 Kg7 c6 b3 e6 g4 e5 f4 c5 g3 c7 b4 c6 g2 e7 f3 Kc5 f2 e6 d4 Bb2 Kh7 Bc1 b2 Qg4 b3 Qf4 Nh6 Qd6 Ra5+ Kb6 Nf7 e8Q Be7 Nc3 b1Q Nd1 b2 Be2 f1R Bd2 Bh4 e7 Na6 Nf3 g1B Ne5 Qc1 Nf2 b1B Ra3 Rd1 Rg3 Nc5 Rg8 Bg6 Bd3 Be6 Be2 Qa8 c8B Bg4 c7 Nd3 Ba6 Ne1 c8B B4h5 Bad3 Bg5 Ne4 Bf2 Bcg4 Bfh4 Nf2 Qf3 Rg1 Qa8 Rf8 Rg8 Rg3 Nh8 Nf7 Rg7 Rg8 Qac8 Re3 Qf5 Re5 Qf4 Rc5 Qa3 Rc8 Rb1+ Kc7 Rb8 Kc6 Rba8 Kb6 Qc1 Qf8 Qf6 e8B Qe7 Bed7 Qe8 Qfe7 Qf8 Bgf3 Bg4 Bh1 Bf3 Rc5 Re8 Rc8 Bh5 Bf1 Bf3 Bg4 Bd1 Bfe2 Bf6 Bc3 Qh6 Bd2 Bfg5 Qe3
n1r1Q2R/1k4qb/4KB2/P3PNqp/b2N2nr/3Qbq2/1B5P/q1RQ2QQ b - - 0 1 legal: proof: f4 e5 fxe5 d5 b4 a5 bxa5 d4 e3 g6 Bd3 Bd7 Bf5 d3 cxd3 gxf5 d4 Be6 d5 Bc8 Kf2 Kd7 Kg3 b5 Kf4 c5 d4 Kc7 a4 h5 g4 b4 g5 b3 a6 b2 e6 c4 Ke5 f4 e7 f5 e8Q f3 e4 f2 g6 f1Q g7 f4 a7 f3 d6+ Kb7 d7 c3 d5 f2 d6 c2 Ne2 Qg1 Na3 f1Q Nc4 b1B Nd4 Qdg5+ Ke6 Na6 e5 Nh6 g8Q Ng4 Bb2 c1Q Ne3 Bh6 Nef5 Qf3 Qg7 Bd3 a5 Rb8 Rb1 Bb5 Qgg6 Ba4 Qgg8 Qc7 Rc1 Qe1 Rg1 Qec3 Qgg6 Qa3 Rg2 Qa1 Qb3+ Ka8 Kf7 Nf6 Nb5 Qgg3 Qe7 Qff2 d8Q Nd7 Qd1 Nf6 d7 Qff3 Ne3 Qcb7 Qed6 Nc7 Qd6d3 Rg8 Qe8 Rh8 d8B Bf5 Qeg8 Qh4 Qg3 Bh7 Nf5 Bf4 Rgc2 Qg5 Be7 Rd8 Qg6 Rd4 Qg2 Qgg4 Qgh1 Be3 Rc5 Qh4 Qgg1 Qg5 R5c2 Re4 Nbd4 Rh4 Bd8 Ng4 Bf6 Rb8 Rc5 Rg8 Rd5 Rc8 Rd8 Nd5+ Ke6 Qbg7 Rh8 Nb6 Qb5 Kb7 Qe8 Ka6 a8Q+ Qa7 Qe4 Qag7 Ne7 Na8 Qed3+ Kb7 Nef5
4R3/2q1qr1n/1QrNNb1P/3n2kq/1P3qp1/2N2RB1/1NbPB1K1/2N1Qr2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 f4 Kf7 Kf2 Kf6 h4 e5 b4 g5 d6 c5 d7 a5 b6 g3+ Kg2 e4 h5 e3 h6 g4 b7 c4 Be2 c3 Qf1 c2 Qe1 a4 Bf1 e2 Rh4 a3 Nc3 a2 Rh3 Ra6 Bb2 Nc6 b8Q c1R Qb6 Qc7 d8N Bg7 Nf7 Rh7 Nd6 Nce7 Rb1 Nd5 Ba1 Ke7 f6+ Ke6 f7 Kf6 f8N Bf5 Rb3 Bc2 f5 Kg5 Nd7 Bf6 Ne5 Rf7 Nec4 Rb1 Bb2 a1Q Rh1 Qa4 Ba1 Qe8 Nb2 Qe5 Rh3 Qf4 Ra3 Ra7 Ra5 Rb7 Ra8 Ra7 Re8 Ra6 Qa7 Rc6 Qb6 Bg7 f6 Rc1 Qef2 e1Q Nge2 Rd1 Nc1 Qee7 Be2 Rf1 Qg1 Qf5 Kh1 g2+ Kh2 Qg6 Rf3 Qh5+ Kg3 Rf8 f7 Ngf6 Qgf2 Nh7 Qe1 Bh8 Nbd3 Bf6 Nb2 Rg8 f8N Rg7 Ng6 Rf7 Nf4 g1Q+ Ng2 Qgh1 Nf4 Q1h4+ Kg2 Qf8 Ne6+ Kg6 Ncd1 Qfe7 Nc3 Q4g5 Nf5 Qe3 Nd6 Qf4 Nba4 Bg5 N3a2 Qe4 Be5 Bf6 Bg3 Qd4 N2c3 Qf4 Nf8+ Kg5 Nb2 Ba4 Qb7 Bd1 Qb6 Bc2 Ne6+
n2Q1B1b/1b1R2b1/N2q2P1/PRQ1N1kb/nP2NNn1/1qN3K1/1r1p2B1/r7 b - - 0 1 illegal: No proof kernel
1k1N4/1N1Kn1R1/1rn2P2/2Q1bBB1/bNPR2r1/3N2q1/qPN2pQ1/2n3nr b - - 0 1 illegal: No proof kernel
7r/nk6/2B1p2r/1Pqn1RP1/b1P1bnB1/1R2B1QB/2Nq1b1N/1Q2bKB1 b - - 0 1 legal: proof: e4 b5 d4 f5 h4 fxe4 a4 c5 axb5 g5 hxg5 Nf6 dxc5 Ng8 c4 d5 b4 Kd7 f4 Kc7 g4 a5 g6 h5 f5 a4 f6 d4 b6+ Kb7 g7 e3 b5 e2 g5 h4 f7 d3 Bd2 h3 Qc2 h2 Qb3 a3 Bh3 a2 Be3 Rh6 Na3 Nc6 Nc2 Na7 Qb1 Bf5 Nf3 Nf6 g8B Be4 Rf1 h1N Nh2 Nd5 Rf5 Ng3 Bg4 Bg7 f8B d2+ Kf2 d1B c6+ Kb8 c7+ Kb7 Be6 Nh5 Bd7 e1B+ Kf1 Bd4 Be8 Nhf4 c8B+ Kb8 Bg1 Bdf2 b7 Qb6 Bg7 Qc5 Bc6 Kc7 Be6 Rah8 Bd4 Kb6 Be3 Kc7 Nd4 Ba4 Nc2 Kb8 Qb3 Kc7 Rb1 a1Q Qb4 Qad4 Rb3 Bh4 Bc8 Bef2 Qe1 Qd2 Qb1 Be1 Bh3 Bhf2 b8Q+ Kd8 Qa8 Kc7 B8d7 Kb6 Qe8 Kc7 Qh5 Kb8 Qh4 Kc7 Qg3 e6 Be8 Kb8 Bh5 Kc7 B5g4 Kb6 Bd7 Kb7 Bc6+
Q2K3n/Q1B1r1R1/BP4r1/r1P5/1RPR3b/1nqRpRqn/2k3b1/2N1N2r b - - 0 1 illegal: No possible last move
QbNq2r1/B1n3B1/kP3P1n/2rB1p1Q/R1BBP1R1/2qq3b/2N4K/4rr2 b - - 0 1 illegal: No possible last move, all moves rejected
4q1b1/Br1B2KR/PpP5/B2bk3/Q2RqN1N/r4n1P/2qb3Q/B1Bnq3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Ke3 Kf6 Ke4 g5 c4 e5 a4 g4 f4 b3 c6 b2 h6 d6 c5 g3 a5 g2 c7 Bg7 h7 Qe8 c6 Nh6 Nh3 g1Q Nd2 Qc5 Ra4 Nd7 Rd4 Ng4 Qa4 Bh6 Nf3 Ne3 Nh4 b1Q+ Bd3 Ra7 a6 Nd1 Bc2 Rg8 h8B+ Rg7 Bd3 Qcc2 Kd5 e4 Bf1 Kf7 f6 e3 f5 e2 Nf4 e1Q Bh3 Ne5 Bg4 Bd7 c8Q Nf3 Qb8 Rg5 Bh3 Rg3 Bg7 Ng5 Qc7 Ra3 Bh8 Nf3 Bg4 Kf8 f7 Ke7 f8B+ Kf7 f6 b6 Be7 Bc8 Bd7 Rb7 Bd8 Qbb4 Qb8 Qbb1 Bc7 Qbb4 Nh5 Bd2 Nf4 Kf8 f7 Ke7 f8B+ Kf7 Bg4 Bf5 Bf6 Bh7 Bd7 Bg8 Bh6 Be3 Bd2 Qbb1 Ba5 Bd2 Re4 Qb4 Ba1 Qbb1 Rd4 Kf6+ Ne6 Bc3 Bc1 Bd2 h3 Qb4 Rg1 Qbb1 Rg7 Qce4+ Kc4 Ke5 Rh7 Qb2 Qa7 Qbb1 Bb8 Qb2 Qa8 Qbb1 Ba7 Qbc2+ Kb5 d5 Nf4 Qf8 Qe8+ Qe7 Qg6 Qd8 Qg2 Qe8 Rc4+ d4 Qh2 Nc3+ Kb4 d3 Rd4 Be3 Bc8 d2 Be6 d1B Kc4 Rf7 Bd7 Bd2 Rg7 Ng1 Rh7 Bf3 Rh8 Bg2 Rh7 Nd1+ B5c3 Qb1 Ba5 Qg6 Be6 Rb7 Re4+ Kd6 Kd4 Qc2 Bd7 Qge6 Re3 Bd5 Re4 Q6e7 Be6 Kc7 Ke5 Nf3+ Kf5 Kd6 Bd7 Q8f8+ Kg6 Qfe8+ Kh6 Qe5 Rc4 Q5e4 Rd4 Ke5 Kg7
3q1B2/1Q1bn1bP/4PBp1/n3KQ2/N2Q1NR1/bn1Rb1P1/4kr2/Q1qr2Q1 b - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 fxe5 h4 axb5 h3 g3 Bd7 Bg2 hxg2 Ra5 Be6 Ra1 Bc8 Kf2 Ke7 Ke3 a5 Kf4 f5 e4 c5 d4 g6 b4 c4 h4 a4 d6+ Ke6 b6 c3 d5+ Kf7 h5 a3 b7 c2 b5 a2 e6+ Kf6 h6 Qd7 h7 Be7 e5+ Kg7 b6 Ra6 Ne2 g1Q Rh4 Qc6 d7 Ba3 d8Q Ne7 d6 Qc7 d7 Nbc6 b8Q Na5 b7 Rd6 Qa8 Rf8 Rg4 Kh6 b8Q Kh5 Nbc3 Qgc5 Qf1 Rd1 Qbb7 Qg1 Be3 c1B Na4 Bd2 Rb1 a1B Rb3 Rf7 Qf8 Qd8 Rd3 Qh1 Qg1 Qc6 Qaa6 Qc1 Qaa7 Rf6 Qd4 Bac3 Kf3 f4 Ke4 f3 Bh6 f2 Bg7 Rf3 Qf5+ Bg5 Bf8 f1N Qa8 Rf2 Qb7 Qb6 d8B Bd7 Qf7 Be3 Qf6 Nf5 e7 Nd2+ Kd5 Bcb2 e8Q Ndb3 e6 Ne7+ Ke5 Bc3 Qef7 Ba1 Re4 B1b2 Nf4+ Kg4 Qf5+ Kf3 Qg7 Ba1 Ng2+ Ke2 Rg4 Nd5 Bf6 Qd8 Qe7 Bc3 Qd6 Ne7 Qda6 Bh6 Qaa7 Bcd2 Qa1 Bde3 Q7d4 Bg7 Nf4+
r1N1Rnq1/q2n2p1/1r3k1n/2rP2N1/1N1NK1B1/NPB3P1/1b2n3/3RbQ1Q b - - 0 1 illegal: No proof kernel
3n2k1/1qQbp2B/qN2b3/bn2K3/1P1BP1bR/2q1NrP1/2Q1N3/2NrR1N1 b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 Qd7 c4 Qh3 cxd5 Qxh2 Kf2 f5 Ke3 Kf7 Kd4 a5 e4 c5+ Kc4 h5 d4 f4 g3 f3 b3 f2 d6 a4 Kd5 c4 b6 a3 b7 a2 d7 h4 d8Q h3 Qd3 c3 Bb2 c2 Ke5 c1Q d5 Be6 d6 Ra3 d7 Na6 b8N Nh6 g6+ Kg8 g7 Nc7 Nc3 Nb5 Qc2 Qb1 Be2 f1B Bh5 Qe2 Qc7 h2 d8N Bfh3 Nb7 Qd3 Nce2 Nf7+ Kf4 Bhg4 Nd7 Qc3 Nbc5 Nd8 Nb6 Bd7 Bg6 Bge6 Nd3 Rh5 Nc5 Rd5 Nd3 Rd4 Ndc1 Rd3 Nf3 Rd1 Re1 h1B Nfg1 Bf3 Bh7+ Kf7 g8N Bfg4 Nf6 Bg7 Nfd5 Kf8 Bf5 Kg8 Ne3 Bd4 Bg6 Bc5 Bf5 Bb4 Bg6 Ba5 Bf5 Qb4 Bd4 Qc3 Ke5 Qbb2 Rb1 a1Q Bg6 Qc6 b4 Qb7 Ned5 Rf3 Ne3 Qc3 Bh7+ Kf8 Nh3 Qa4 Rh1 Kf7 Nhg1 Qaa1 Rh4 Qa4 Bf5 Kg8 Ra1 Qa2 Bh7+ Kg7 Rh5 Rdf1 Na4 Bb6 Nd3 Rb1 Rh4 Rc1 Nac5 Qaa6 Na4 Ba5 Nb6 Kf8 Ra3 Ra1 Rb3 Kf7 Rb1 Kg7 Re1 Rd1 Ndc1 Kf7 Bg6+ Kg8 Bh7+
R1rQN1nB/nPq1N3/b5qR/3RQ3/2Rr4/P1P2B2/qRk1Kp2/1q2b1r1 b - - 0 1 illegal: No proof kernel
q2r2BB/BP1NB3/r3k3/3pbbr1/q2qB3/N2n1PQ1/P4R1K/n1rQR3 b - - 0 1 illegal: No proof kernel
1r1n1bn1/N1Q2q1n/3k2P1/Pn4Bb/4bR1Q/p1RP2r1/5QB1/1Q2KQbN b - - 0 1 illegal: No proof kernel
1N3nQ1/2n1Bbrn/4Pb1R/b1N5/K2NB1Pp/N1qR2kb/1N2QP2/2n4r b - - 0 1 illegal: Other
br2k3/qP1N2R1/n1RqP2B/4R3/4bpQq/RBQ2Pq1/2qnN1Rb/7K b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 d4 g5 dxe5 Nh6 a4 Ba6 h4 gxh4 b6 Bc8 b7 Ra6 b5 Rc6 b6 Rc5 Nh3 Rb5 axb5 a4 Ng1 Ng8 e4 h5 g4 d5 g5 f5 g6 c5 e6 h3 g7 a3 e5 h2 e7 h4 Qa4 h3 Qc2 a2 Na3 c4 Qc3 d4 Ne2 d3 Bh6 Qd6 Rg1 h1Q Rg2 Na6 b8R h2 b7 Nf6 g8Q Ne4 b6 Nd2 Qg4 f4 Rc1 a1Q Ra8 Qa2 Ra7 Bf5 Rc2 Be4 b8R+ Kf7 Rbb7 Ke8 Rd7 Qg1 Rdc7 h1Q f3 Ba8 b7 Qh4+ Rg3 Qg2 Rc6 Qgh3 Kf2 Rg8 Qd4 c3 Kg1 Rh8 Rb2 c2 Nc4 c1Q Qc3 Qc2 Nb6 Qaa4 Rg2 Q3g3 Nd7 Nb8 Rb5 Kf7 e8R Bg7 Nb6 Nb1 Nc4 d2 Rg8 Ke7 e6 Bd4+ Ne3 Qaa3 Nc1 Qac5 Ra3 Qa7 Rgg5 Na6 Bc4 Rb8 Ne2 Ke8 Rbe5 Bb6 Rg7 Bd4 Kf1 Bc5 Nd5 Bg1 Nb6 Bh2 Rcc5 d1B Nd7 Qcd3 Rc6 Bc2 Ba2 Qd2 Bc4 Be4 Bb3 Qc2 Rg1 Qe1+ Kg2 Qeg3+ Kh1 Nd2 Rg2
r3qQ2/2nPpB1N/r2B1R2/4kNK1/n1R2R2/PrRq1Qn1/2RrP3/2r4b b - - 0 1 legal: proof: c4 g5 f4 a5 fxg5 d5 cxd5 Kd7 b4 axb4 g4 Ra4 h4 Bh6 h5 Ra6 g6 Bf4 g5 Be5 h6 Bg7 hxg7 Ke8 Ba3 Ra7 Bc1 Ra8 Kf2 Kd7 Ke3 Kd6 Kf4 h5 d4 c5 a3 b5 Bg2 f5 Nf3 h4 Nbd2 b3 Rh3 b2 Nf1 b1Q Ra2 c4 Qd3 c3 Rc2 b4 Ng3 Nf6 g8R b3 g7 b2 g6 Bb7 Ng5 Na6 Nh7 Nc5 Kg5 f4 Qf3 Qe8 Rf8 Na4 g8R Ra6 g7 Ba8 Bd2 Qd1 Rf7 b1R Rgf8 Rb3 g8Q Bc6 Be3 Qd3 Bg1 Bb7 Bh2 Ba8 Nh5 Bc6 Ng7 Bb7 Rg3 h3 Rg4 Ba8 Bg3 h2 Nf5+ Kd7 d6 Ke6 d5+ Ke5 d7 h1R d8R Rd1 d6 Nd5 d7 Nc7 Rh4 Rd2 Rf6 Bb7 Rc8 Be4 Ra2 c2 Rh3 c1R Rc2 Bc6 R8f7 Be4 Qf8 Bb7 Qf2 Ba8 Bd5 Bc6 Be6 Bd5 Bh2 Bh1 Rg3 f3 Qg2 f2 Qf3 f1N Rg4+ Ng3 Rgc4 Rab6 R4c3 Na8 R8c4 Rg8+ Rg7 Nc7 Bf7 Rh8 Rgg6 Rc6 Rh6 Rd6 Rhh4 Ra6 Rhf4 Qc8 Bd5 Nf1 Qg7 Qf8 Bg8 Qf7 Rfe4+ Kd5 Bd6 Ng3 Rfe6 Qf8 Bf7 Qb8 Bg6 Qg8 Rf6 Qf7 Bh5 Rha8 Qf8 Qe8 Rf4+ Qe4 Bb4 Ke5 Bf7 Qd3 Bd6+
2R2b2/1nn1R1r1/3n2b1/N1RP2rp/1BN1RK2/3QnP1P/1R2B1r1/kQ3r1b b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 e4 f3 exf3 e3 f5 Qc2 f2+ Kd1 f4 Qa4 f3 Kc2 Qf6 Bd3 f1B Qg4 f2 Qd1 Qf3 gxf3 Bb7 Ra4 Ba6 Ra1 Bc8 b4 Kf7 d6 Kf6 e4 Ke5 b6 Kd4 b5 h5 d7 c5 b7 g5 b6 a5 e5 c4 e6 c3 e7 g4 e8Q g3 h3 g2 Bb5 a4 Qg6 a3 Be2 a2 Na3 Ra5 Nc4 Na6 b8R Nh6 b7 Rh7 Ba3 Nc7 Rc1 a1R Bb4 Nf5 d8R+ Nd6 Re8 Rg7 Re7 Rg5 d3 Bf5 Rc8 Be4 b8R Bf5 Qh7 Bg6 Rb5 Rb1 Rc5 Ra1 Rb1 Ra2+ Kc1 c2 Kd2 c1N+ Rb2 Ra1 Qb3 Ra2 Qc2 Nb3+ Kd1 Na5 Kd2 Nf7 Rce5 Nb7 Re4+ Kd5 Ke3 Nfd6 d4 Ra1 Bd1 Ra2 Ne2 g1R Kf4 Bg2 Nc1 f1N Be2 Ne3 Rh2 Bh1 Nb3 Raa1 Qd3 Raf1 Rc2 R1g2 Rc1 Kc6 d5+ Kb5 Nba5 Ka4 Nd2 Re1 Rc5 Rd1 Bc3+ Ka3 Ndc4+ Ka2 Bb4 Rdg1 Qh8 Rh7 Qhc3 Rf1 Qcc2+ Ka1 Qcb3 Ng4 Bd1 Rg3 Rb2 Rg7 Qbc2 Ne3 Be2 Rg2 Qb1+
1RK1N3/3p2Q1/QNBP1b2/1rr3pq/3Rr1P1/P1bN2nn/BkN1b3/2n4N b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 h4 c4 Kf7 cxb5 Na6 Ba3 Nb8 Bd6 Ke8 Bg3 hxg3 Ke2 Kf7 Kd3 Kf6 Kd4 c5+ Kd5 g5 d4 e5 h4 c4 f4 e4 a6 c3 a3 g2 h5 c2 b6 c1R h6 e3 b7 e2 h7 e1B a7 Bd2 Ne2 g1N Qa4 Nf3 Ng3 Qe8 Qa6+ Bd6 Nc3 Qh5 Rb1 Ne1 Na4 Qh4 Bc4 Rc2 Nb6 Bc5 Ba2 Nc6 b8N Ne5 Nc6 N1d3 Rhd1 Nc4 Nh1 Qh5 Nb4 Ne1 Nd3 Rb8 a8B Rc1 Bc6 Nh6 Rb5 Re8 h8N Be7 Nf7 Nb2 Nd6 Bd8 Rb3 Re4 Ne8+ Kf7 Kd6 Rc5 f6 Ng2 f5 Nf4 d5 Nh3 Rb5 Bc3 Rb3 Be7+ Kc7 Bb7 d6 Ba8 Nd5 Rbb5 Kc8 Bd8 Nb6 Be7 Nb4 Nd3 Nc2 Nc1 Rd3 Kf8 f7 Bef6 Nc7 Kg7 f8N Kf7 Ng6 Kg7 Rd4 Kf7 Bd5+ Kg7 Ne5 Bc6 Bg8 Bd5 Rb1 Bc4 Bd5 Be2 Bb7 Bd8 Ba8 Kf6 Bc6 Be7 Nd3 Bd8 Nb2 Ke5 f6 Nf5 f7 Bf6 f8Q Ng3 Ne8 Kf4 Nb4 Ke3 N2d3 Kd2 Nc2 Bb2 Qb7 Kc3 Qg7 Ba1 Rbb4 Bb2 Ra4 Ba1 Ra8 Bb2 Rb8 Ba1 Ndf2 Kb2 Qa6 Kc3 Bb1 Kb3 Nd3 Bc3 Ndf2 Kb2 Ba2 Re3 Be6 Ree5 Ba2 Re4 Nd3+
Q1n1b1nk/2rq2RQ/r4QQn/4qNQ1/p4bNP/b1p1P3/RP1B4/K6B b - - 0 1 illegal: No possible last move
5B1n/7Q/nq1R3Q/1NkBpKP1/1R2PbrQ/qQbp3Q/r1Pq4/1N1r4 b - - 0 1 legal: proof: d4 g5 g4 b5 f4 c5 fxg5 cxd4 a4 Qc7 axb5 Qd8 g6 Bb7 g5 Bf3 h3 Bg4 hxg4 Qc8 Ra4 Qc7 Ra1 Qd8 Kf2 f5 Kf3 d5 Kf4 Kd7 e4 Kd6 b4 a5 b6 h5 g7 e5+ Kf3 a4 b7 a3 b5 a2 g6 f4 b6 h4 Bc4 d3 Bb3 h3 Qe1 d2 Ne2 d1R Nec3 h2 Qh4 d4 Nb5+ Kc5 Bd5 Na6 b8Q d3 b7 Ne7 g8Q Qb6 g7 Ng6 Qgh7 Rg8 Q7h6 Nh8 Qe8 Be7 b8Q Bg5 Qee6 Ra7 Rg1 h1Q+ Rg2 Qe1 Ba3+ Qb4 Qf5 Ra8 Qfh7 Ra7 Qe8 Ra8 Qeh5 Ra7 Qh3 Raa8 Q5h4 Ra7 Kf2 f3 Kg3 f2 Rh2 f1Q Rf2 Qd6 Rf6 Qb6 Rd6 Qe1+ Kf3 Bf4 g5 Qd2 Kg4 Rf8 g8Q Raa8 Bb2 Qa3 Qgf7 Ra7 Kf5 Raa8 N1c3 Ra7 Rb1 a1B Bc1 Raa8 Rb4 Bb2 Nb1 Bc3 Ke6 Bh2 Qb7 Rf4 Bb2 Rg4 Kf5 Bf4 Qbf7 Qaa5 Ba3 Ra7 Ba8 Qa4 Qb3 Qaa5 Bd5 Ra8 Bc1 Qa3 Kf6 Qaa5 Re6 Nb8 Rd4 Qb4 Bb2 Ra2 Kf5 Q4a5 Ra4 Na6 Ba3+ Qb4 Nc7 Kd4 Rc6 Qc4 Bf8 Qcb4 Rd6 Kc5 Nb5 Qa3 Rb4
1r2B1Rk/R4Q1r/R1QR1n1b/p4p2/4b2P/rqBnP1K1/Pn3R2/2q2NN1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxc5 Ng8 Kf2 g5 d4 b5 c6 f5 h6 Kf7 h7 Kg7 d6 f3 c7 g4 d5 b4 d7 b3 e3 b2 d6 Na6 Bb5 Nb4 Qb3 Nf6 Kg3 f2 Bd2 Nd3 Bc3 Bb7 c8Q Qb6 d8R Be4 Nd2 b1R d7 f1Q h4 Qc1 Nf1 Nb2 Qc6 a5 Qbc4 Rb8 Rh2 Qb7 Ba4 Qb4 Rf2 Qb3 Kf4 g3 Qf7+ Kh6 Bb5 g2 Kg3 Bg7 Rg8 Bf8 Nh3 g1N d8R Nf3 Ng1 Ne1 Rd6 Ned3 Ba4 Rb4 Bb5 Ra4 Rd7 Bg7 Ra7 Ra3 Rga8 Rb8 Ra6 Rb7 R8a7 Rd7 Qb6 Rb7 Be8 Bf8 Qc6 Rd7 Qfe6 Kg7 h8R Rf7 Rh6 Rc7 Rg6+ Kh8 Rh6+ Rh7 Qf7 Qa4 Rg6 Bh6 Rg4 Nc4 Rg7 Rb8 Rb1 Qad1 Rbb6 Ncb2 Rg6 Ra8 Rb8 Qb3 Rd8 Rc8 Rd6 Rb8 Rg8#
3n2B1/QRNn1p2/bP1rPr1Q/Q1Bp1qQ1/qb1k4/Pn1q4/K2N4/1R1Q4 b - - 0 1 illegal: No possible last move
4Q2B/1qBPnk1b/p3p3/B1N1rqB1/K1P1b3/n2N2bQ/1RRPn3/1B2r3 b - - 0 1 illegal: No proof kernel
1Rb1BQQQ/n1bpKP2/1B3P1r/p3Nkq1/2r3b1/1q1NnQ2/1P3Qn1/7R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 Kf6 Kc4 g5 Kc5 d3 h4 a6 f4 d2 c4 g4 b6 g3 h6 g2 h7 Bg7 h5 e5 Kd6 e4 b7 e3 h6 e2 c5 e1N c6 Qb6 Nc3 Qf2 c7 Qe2 Nd5+ Kf7 f6 Kg6 f5+ Kg5 Nf4 Qf2 Be2 Nc6 b8Q Qh4 Nf3+ Kg4 Qa7 g1Q Qf2 Qgg3 Ne5+ Kg5 Bh5 Nge7 Qdf3 d1B Be8 Nd5 Be3 Ng2 Bb6 Nde3 f7 Na7 f6 Kf5 Ke7 Qhg5 Ra4 a5 Rb4 Ba6 c8Q Bf8+ Kd8 Rb8 Rb3 Rb7 Qc5 Bd6 Qa3 Bc7+ Ke7 Rb8 Qc5 Bc8 Qd6 Rg8 h8Q Rg6 h7 Rh6 Qg8 Qh3 h8Q Rb7 Bc5 Rb4 Bd4 Ra4 Rb8 Rc4 Bb6 Qhg3 Qh5 Bg4 Qa3 Rg6 Q5h6 Qf3 Qhf8 Rh6 Qb3 Qd5 Qd1 Qd3 Qdf3 Qb3 Nfd3+
1n3BbK/N1P5/rBN2QqR/1r1P2B1/1nB5/r2pPnp1/B1kb3Q/2R4q b - - 0 1 illegal: No proof kernel
Q1b4R/1QPP1rpq/2q1b1B1/NRR3p1/R1rB3b/1n1PK2R/2knn3/1N6 b - - 0 1 illegal: No proof kernel
2KnN1B1/1P2P1b1/3B4/1N3r1P/3N1Nq1/N1QRp1kb/1Rpqqb2/1nr2Q2 b - - 0 1 illegal: No proof kernel
Q1nN2R1/rqp3nr/4R1PB/2Q1bN2/P2Rr3/BbR2Rr1/2P2pr1/3k3K b - - 0 1 legal: proof: f4 a5 g4 h5 b4 g5 bxa5 e5 d4 Ne7 dxe5 Ng8 Bh3 Nf6 fxg5 Rh7 g6 Rh8 g5 Ng8 Bg4 hxg4 Kf2 Ke7 Kg2 Ke6 a4 Kf5 h4 Ke4 a6 f5 h5 b5 g7 d5 e3 d4 h6 f4 h7 b4 a7 d3 e6 g3 e7 d2 e8R+ Ne7 g8R b3 g6 b2 Rh3 f3+ Kh1 f2 Qh5 d1R Na3 b1R Nb5 Rd4 Ba3 Be6 Qc5 Qc8 Rd8 Rb3 Ne2 Kf3 e4 Nbc6 e5 Qb7 Nf4 Nf5 Nd6 Ng7 Nf5 Re4 Rd4 Bd6 Ra2 Bf7 e6 Be5 e7 Rc3 e8R Ne7 Ne6 Ke2 Nd8 Bb3 Ra1 Nc8 Rad1 Rce3 R1d3 Rf3 Rc3 Rd3 Rh4 Kd1 Rf4 g2+ Kh2 g1R Re6 Rg5 Kh1 Rg3 Rf3 Rg2 Rge8 Rf8 h8B Rf7 Rf8 Nh5 Bf6 Rh7 Bg5 Ng7+ Bh6 Rb8 Rb4 Rde3 a8Q Rd3 Qa6 Ra8 Rg8 Rde3 Qaa7 Rd3 Qb8 Ra7 Qa8 Rde3 Rf4 Reg3 Rff3 Rg5 Rbc4 R5g3 Rd4+
8/2pkr1RP/3rrr2/2pR3P/1R1nBP2/b1qb1QQK/R1NR4/3r1nBN b - - 0 1 legal: proof: e4 b5 g4 f5 exf5 h5 gxh5 d6 a4 Ba6 axb5 Bb7 c4 Bc8 c5 dxc5 h4 a5 f4 e5 Kf2 g5 Kg3 g4 b4 e4 d4 a4 f6 e3 d5 e2 h6 e1R f7+ Ke7 d6+ Kd7 h5 a3 h7 a2 b6 Ra6 b5 Re7 b7 Rb6 Nh3 Re1 Rg1 Re3+ Qf3 Ne7 Na3 Re6 Be3 Nbc6 b8R Bg7 f8R Nd5 Nc2 Qf6 Bg2 Nd4 Nf2 Ba6 Nh1 Re7 Rf7 Re8 Rgd1 Rf8 Bg1 Ne3 Kh2 g3+ Kh3 Nf1 Rd2 Rc6 b6 Bd3 b7 Qe5 Re1 a1R Ree2 Rd1 Rf2 Bh8 Rg7 Rf6 Rfe2 Nb5 Rf2 Qc3 Rfe2 Nd4 Rf2 Ke6 d7 Rd6 d8Q Re1 Qg8+ Kd7 Rc8 Ree6 b8R Rd5 Rb4 Rdd6 Rg5 Bg7 Rd5 Bh8 Qg6 Bg7 Rg8 Bh8 Qe3 Bg7 Be4 g2 Qf3 Bh8 Bh2 g1R Rg2 Ne3 Qg7 Rd1 Qgg3 Nf1 Bg1 Nc6 Qe3 Rf8 Nd4 Qc4 Ra2 Qc2 Nb5 Bb2 Na3 Rff6 Rd2 Qc3 Qef3 Nd4 Nc2 Ba3 Rg7
6r1/P1n4N/R1q2nN1/3BPb2/PkNBb1b1/6Q1/ppR2NbK/1Nb1Q1r1 b - - 0 1 illegal: No proof kernel
1k1R2b1/4P2r/B2pprPB/q5bb/3QQB1R/6NP/1Br2nN1/1nb3KB b - - 0 1 illegal: No proof kernel
1r2N1qB/2R5/2N1NqNb/1P3Pp1/4q1bn/1N1RB1Pk/Kpq1Qr2/1n2Q3 b - - 0 1 illegal: No proof kernel
2Q1n1b1/q2BBQ2/3r1pp1/1NB1N2P/kP2qR2/1qP1q1bK/2B1B3/1r1Rn3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kg3 d5 b4 Kd7 e4 g6 h4 d3 c3 a4 b6 Kc6 h6 Kb5 h7 d4 e6 a3 e5 a2 h5 Qe7 b7 Nf6 Bh6 Nbd7 b8B Nc5 Ba7 Ne8 Rh4 f6 Be2 Bb7 Bf4 Bd5 Kh3 Rd8 Qf1 Ka4 Na3 d2 Rd1 a1Q Nf3 d3 Nb5 Rd6 Qg1 Qb7 e7 Bg8 e6 Qe4 Ne5 Bh6 Bh2 Bf4 Rg4 Bg3 Rf4 Qe3 Qh1 Qa2 Qd5 Qc4 Bg1 Qce4 Qb7 Nb3 Qd5 Na1 Bc5 Nc2 Qb7 Ne1 Qc8 Bf7 Qc7 Rf8 h8Q Bg8 Qc8 Rf7 Qh6 Rh7 Qg7 Rh8 Qf7 Rh7 Rc1 d1Q Bh2 Qdd2 Rd1 Qa2 Bg1 d2 Bh2 Nc7 e8B Rh8 Bc6 Ne8 e7 Qa3 Bd7 Qa1 Rb1 d1Q Bf5 Qb3 Rd1 Rd2 Bd7 Rb2 Bg1 Rb1 Bh2 Nc7 e8B Rh7 Bf5 Qaa2 Bed7 Ne8 Qc4 Re7 Qf7 Re6 Be7 Rd6 Bg1 Qad2 Bf2 Qa7 Be3 Qdd3 Bc5 Qee3 Be4 Qdc4 B4d3 Qce4 Bc2
qB1b1q2/1kB3B1/N1bBP1rQ/2B1p1P1/2b2R1Q/4PR2/1br1np2/N2Kn3 b - - 0 1 illegal: No proof kernel
qRQ1K3/1NPQ1PN1/1rN2b2/Bb2P3/2p1r2q/p3kN1n/2R2nN1/1B1r3r b - - 0 1 illegal: No proof kernel
2Bq1B1K/1Qr3P1/B1Pp1RB1/q6n/1qRB2pr/1nN5/1b1r1nP1/kNQ5 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 c5 axb5 e5 fxe5 Bb7 d4 Be4 h5 Bg6 hxg6 cxd4 Kf2 Ke7 Kf3 Ke6 Ke4 a5 c4 h5 b4 g4 b6 h4 b5 h3 b7 d6 c5 d3 b6 d2 c6 h2 Ra4 Rh4 Rc4 Nd7 b8B a4 b7 a3 Ba7 a2 b8Q a1Q Bd4 Ra7 Qb7 f5+ Kf4 Kd5 e6 Ngf6 Kg5 f4 e7 f3 e8B Nc5 Bd7 f2 Bc8 Nb3 g7 Qa6 Kg6 Nh5 Kh7 Qaa5 Kh8 Ke4 Qe1 d1R Bg5 Rd2 Qc1 Qb4 e3 Qba5 Ne2 Kd3 Rg1 h1N e4 Qb4 e5 Be7+ Kh7 Qda5 e6 Bf6 e7 Qd8 e8B Qda5 Bb6 Bb2 Bd4 Qd8 Kh8 Qba5 Qa6 Rc7 Be7 Qb4 Bf8 Qa5 Qe1 Qb4 Nec3+ Kc2 Be2 f1Q Bg6+ Qf5 Rf1 Nf2 Qb7 Qe4 Be8 Qd5 Bf7 Qda5 Bg6+ Nd3 Rf5 Nf2 Qf1 Ba3 Rf4+ Kb2 Qc1+ Ka1 Rf6 Bb2 Rc5 Rh2 Ba6 Rh4 Rc4
2qq1bK1/B1P3B1/4Qp2/4b1R1/n2kNPpB/R2Nr3/2Q1Prb1/1Br2Bq1 b - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 dxe5 h5 bxc5 hxg4 a3 Na6 a4 b4 Qd2 Nc7 Qd1 Nb5 axb5 Bd6 Qd3 Be7 Qd1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 a5 c4 b3 h5 b2 b6 a4 c6 d6 c5 f6 c7 g3 c6 g2 h6 a3 b7 a2 b8B g4 h7 Nh6 Nc3 b1Q+ Qc2 Ra7 Nh3 g1Q Bg5 Qc1 f4 Nf5 Nf2 Ne3 Rh5 Ra3 Bh4 Nd1 Nd3 Bb7 Rg5 Nb2 Ba7 Na4 c8B+ Qd7 Rb1 a1B Rb3 Ba8 Bb7 Qc8 c7 Qd2 Nd1 Bb2 N1f2 Qd1 Rc3 d5+ Kd4 Ra1 Bc6 Rc1 Be8 Rg8 h8B Rg7 Bc6 Re7 Bg7 Re8 Rg6 Kf5 e6 Bb7 e7 Ke6 Ke3 d4+ Ke4 Kd6 Rg5 Ba1 Nc5 d3 Ra3 d2 Ncd3 Be5 Bd5 Qe1 Bc6 d1R Bd5 Qa5 Bc6 Qd8 Kf5 Qa6 Kg6 Ke6 Bb5 Bg2 Kh7 Kd5 Ne4 Qac8 Kg8 Re1 Bd7 Red1 Nb2 Rd3 Bf5 Rf3 Nd3 Rf2 Bg6 Qd6 Bb8 Kd4 Bh7 Rd8 e8Q Rd7 Qf7 Re7 Qe6 Qdd8 Ba7+ Nb6 Nd6 Bd5 Qa2 Qb7 Nb4 Bg2 Qd7 Qbc8 Bb1 Re6 Nd3 Re8 Nb7+ Bed6 Qc2 Re3 Qe6 Be5 Nbc5 Na4 Ne4+
1K3Rq1/3b2r1/B2N2Q1/PNn1Pp2/n3B2B/1nQ2np1/3b1P1b/k1n2RBB b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 h5 b4 b5 g4 hxg4 bxa5 b4 Bb2 Ra7 Ba3 Rb7 Bc1 Rb5 cxb5 Rh4 Nh3 Rh7 Ng1 Rh8 Kd2 Ke7 Kd3 Ke6 Ke4 g5 h4 c5 a4 c4 a6 c3 h5 g3 h6 g4 a7 c2 a8B g2 b6 b3 a5 b2 h7 Bb4 b7 Bd2 Nf3 g1B Nh4 Nc6 b8B Bh2 Nf5 Nd4 Nd6 Nb3 Na3 b1N Nab5 f6 Ba3 c1N Qc2 Qe8 Qc3 Qf8 Qg3 Qg7 e3 f5+ Kf4 Qg6 Be4 Nf6 Bc7 Re8 h8Q Qg8 Qh5 Re7 Qg6 Rg7 Bb2 Bg1 Rh8 Bh2 Bb8 Qf7 Rf8 Qg8 Bc2 Kd5 e6 Kc5 Ke5 Kb4 e7 Ne4 e8B Nec5 e4 Bc3+ Nd4 N1d2 Ba3+ Ka4 Ba6 Bb4 Bf7 Nf3+ Kd5 Bc3 N4b5 Bd2 Bb2+ Kb4 Rb1 Ka4 Bf6 Kb4 Bh4 Ka4 Nc3+ Ka3 Ncb5+ Ka2 Qe5 Bg1 Qc3 Bh2 Ne8 d6 Kc6 d5 Ned6 d4 Kc7 Bd7 Bd5 d3 Ba8 Bh6 Bd5 d2 Bd3 d1N Ba8 Ne2 Rc1 Nb2 Rf1 Nba4 Bc2 Bc6+ Kc8 Bd2 Bc7 Be5 Kb8 Bd7 Nc8 Nec1 Bd3 Ng1 Bc6 Bd4 Bh2 Be5+ Ncd6 Bg3 e5 Bgf4 Qc2+ Ka1 Bh1 Nf3 Bg1 Bh2 Be4 g3 Qc3+
1n1kN2r/1KpRb3/RPP5/1Q3n2/R1nq4/1n3pPB/1B2N3/Rr1qQ1Rn b - - 0 1 illegal: No possible last move, all moves rejected
2nRBk2/1QKBnPRN/2Qpb2B/4b1qb/1P2B1N1/3P4/1q1p1B2/3rb2b b - - 0 1 illegal: No proof kernel
1B2k1K1/qPb4p/1nq3pP/RB2N2Q/5B2/1Qn2b1R/N1bb1P1B/2B3qr b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 g4 cxd4 a4 b5 axb5 Ra6 g5 Rf6 gxf6 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 d5 Kd3 e5 b4 g6 h4 a4 c4 a3 f7+ Ke7 h5 a2 f6+ Kd7 c5 Bg7 f8B Qe8 h6 Ne7 f7 Bb7 b6 Kd8 c6 Nd7 b5 e4+ Ke2 d3+ Ke3 d2 Kf4 e3 Kg5 d4 Nc3 e2 Rh3 e1B Qb3 d1B Nf3 d3 Ne5 Ba8 b7 d2 b8B Nd5 b6 Bc2 Bfd6 d1Q f8B Rg8 Bf4 Bd2 Bb5 Qe6 c7+ Ke8 Ba3 Qc6 Bc1 Bb7 Bd6 Qg1+ Ng4 Be5 c8Q+ Kf7 Bdc7 Rd8 Bd6 Ke8 Bdc7 Ba6 b7 N7b6 Qf5 Bd6 Ne2 Nc3 Kf6 Rc8 Kg7 Be5+ Kg8 Rd8 Rb1 a1Q Qh5 Qa3 Ra1 Rd3 Bd8 Bc7 Ne5 Rd4 Bh2 Rh4 Bg5 Qa4 Bgf4 Qa2 Bd3 Bb5 Bc4 Qa7 Ra5 Ba4 Bb5 Be4 Qc4 Bac2 Qb3 Bh1 Bb2 Bhe4 Nc1 Bf3 Na2 Bh1 Rd3 Bf3 Bc1 Rh3 Bhg3 Rh1 Bh2 Be2 Rg3 Bf3 Rh3
Bq3R1b/4kQ1n/5pqQ/N2Qnq1N/4rPp1/1PP1nQ2/1Q1Kn3/2Bb3R b - - 0 1 legal: proof: e4 c5 g4 d5 d4 h5 gxh5 b5 a3 a5 a4 Ra7 axb5 Rd7 Nc3 cxd4 Nb1 d3 Bh3 d4 Bf1 Rd5 exd5 Rh6 Nh3 Rh7 Ng1 Rh8 h4 e5 f4 g5 h6 a4 h5 a3 h7 d2+ Ke2 d3+ Ke3 e4 b6 a2 b7 Nd7 b8Q Ke7 b3 Ngf6 h6 Ne5 Qb5 Bg4 Qf3 d1N+ Kd2 Nc3 Na3 Ne2 Bg2 Bg7 Nc4 Qb8 Na5 Re8 h8Q Nh7 c3 f6 Qg8 Bh8 d6+ Kd8 d7 Ke7 Qbd5 e3+ Ke1 d2+ Kd1 Nd4 Ne2 Bh5 Ng3 Ne2 Kc2 Bg4 Nh5 d1N Rb1 a1Q Rh3 Nf8 h7 Qa4 Ra1 Qab5 Qd2 Qd5 Rh1 Qf7 Ra4 Qg6+ Re4 Ng1 Qdf2 e2 Kd2 Ne3 Rc4 Qf5 Rc8 Qg6 Q3g3 Qf5 Ba8 Bf3 Qfh2 g4 Rd8 Be4 Qhf2 Bc2 Qgf3 Bd1 Qgd5 Bg7 h8Q Nh7 Qhg8 Bh8 Rc8 Qe4 Qg5 Qg6 d8Q+ Kf8 Qb6 Ke7 Qh6 Qf5 Qg8 Qg6 Qbc6 Qf5 Bb2 Qg6 Qcd5 e1Q+ Kc1 Qf1 Kd2 Qfb5 Bc1 Ne2 Qh2 Qd7 Qhg2 Qdf5 Qgf2 Rd8 Q2g2 Rd6 Rf8 Re6 Ke1 Ng1 Qb2 Ne2 Kd2 Rd6 Qd3 Rd4 Qfd5 Ra4 Q3e4 Rc4 Qf3 Re4 Qgf7+
r3RB1n/1Bk3n1/n6K/5rPB/Nb1Q1Qp1/r1p2BBb/RPp1P3/6qN b - - 0 1 illegal: No proof kernel
QR3Qk1/KN5b/3pBBB1/1pP1pbPn/1rPBr3/B2r1q2/5n2/2bR1N2 b - - 0 1 illegal: No possible last move
BB1k1n2/B2Q1n2/p2b4/BP1r4/1qRP1p2/npPQ2rb/BKR1N3/3N2r1 b - - 0 1 illegal: No possible last move
2b1R1Q1/2PR1Np1/1K1B1q1N/4B1n1/p3nrQb/P2B1pPB/2rr3k/b1B5 b - - 0 1 legal: proof: f4 d5 b4 h5 c4 e5 cxd5 c5 bxc5 h4 fxe5 h3 g3 Ne7 Qc2 Ng8 Qe4 Be7 Qf3 Bf8 Qg2 hxg2 Kf2 Ke7 Ke3 a5 Kd4 b5 h4 f5 e4 f4 c6 f3 Kc5 b4 d4 a4 e6 Kf6+ d6 b3 e7 b2 e8Q Ba6 a3 Be2 h5 Nh6 c7 Ng8 e5+ Kf5 h6 Kg4 d5 Bb5 e6 Be7 h7 Bc6 Kb6 Bg5 e7 Bf6 d7 Bb5 d6 Nc6 Ne2 g1B+ Nd4 Ne5 Nc3 b1R Qg6+ Bg5 e8B Be2+ Nb5 Qc8 d8B Bf2 d7 Rb2 Bf6 Rd2 d8B Qe6+ Nd6 Nf7 Be5 Ba6 Beb5 Bc8 Bbd3 Nf6 Be7 Ne4 Ra2 Rd8 h8Q Qf6 Qg8 Rc2 Rh8 Be1 Bf8 Bc3 Nf5 Ba1 Rb2 Ra5 Rb4 Rac5 Rd4 Rd2 Be7 Rcc2 Rd5 Rf8 Rd4 Rg2 Nh6+ Kh3 Qf5+ Kh2 Qg4 Rge2 Bh3 Bh4 Rd5 Nfg5 Rd4 Be6 Ndf7 Red2 Rd8 Bd7+ B7d6 Bc8 Rd7 Qg6 Nd8 Rf4 Ndf7 Qf6 Qh7 Rc5 Re8 Rcc2 Qg8
3Brn2/1KpR4/2P4N/1bBRN1rP/2b2QBp/pBqb2nP/4B2r/1Q2k3 b - - 0 1 legal: proof: d4 h5 a4 b5 axb5 e5 e4 exd4 f4 h4 g4 Be7 e5 Bf6 e6 Be5 fxe5 Qf6 Nd2 Qg6 Nb1 Qh5 gxh5 Kf8 Ra3 Ke7 Ra1 Ke8 Kd2 Ke7 Kd3 g5 Ke4 f5+ Kd5 a5 b4 f4 c4 g4 c5 g3 h3 d6 b6 a4 b5 d3 b7 g2 b6 d2 Qf3 d1Q+ Nd2 Qe1 Ne4 Bd7 Nf6 Nh6 Be2 Qc3 Ng4 Nf5 Nh6 Bb5 Rb1 Bd3 Rb5 Nd7 Kc6 d5 b8Q d4 Kb7 Ng3 c6 Re8 Rd5 Nf8 Qg4 a3 Nf3 Ra5 Rd1 g1R Qf5 Bc4 Qb1 d3 Qa7 Rb5 Qa4 Rb2 Be3 d2 Bd4 Ng6 Be3 Kf8 e7+ Kg7 e6 Kf6 Ne5 f3 Bf4 f2 Bg5+ Kg7 Rd7 f1B Rd5 Bd3 Qf4 Nf8 Rd7 Rg2 Rd5 Rh2 Rd7 Rb5 Rd5 Rd8 e8B Ra5 Bg6 Re8 e7 Bb5 Bg4 Bfd3 B6f5 Bbc4 Be2 Rb5 Bfg4 Ra5 Rh1 d1B Rf1 Ba4 Rd1 Bab5 Rd2 Rea8 e8B Rd8 Bf7 Re8 Bd8 Kh7 Kc8 Kg7 b7 Kh7 b8B Kg7 Rd7 Kh7 Re7 Kg7 Qe4 Kf6 Kb7 Kg5 Bd5 Qb3 Ba7 Qc3 Qg6+ Kf4 Bc5 Qc2 Qd6 Qc3 Bg8 Ke4 Rd7 Kf4 Bb4 Ke3 Rd1 Kf2 Bf7 Bg6 Rd5 Bgd3 Bc5+ Qd4 Bd1 Ke1 Qf6 Qb2 Qf4 Qc3 Bde2+ Qc1 R5d6 Bd5 Ng6 Ba4 Bg1 Ba2 Bb6 Rg5 Ne5 Bab5 Bc5 Bb3 Bc4 Ba2 Rd5 Bb3 Qa2 Qc3 Qb2 Bd1 Ba2 Bb3 Qc2 Bb3c4 Bb3 Qd2 Qa2 Qc3 Qb1+
1B2R1q1/1p1RN1Pp/R3b2P/6k1/b3r1pB/1PR1N3/2nQrnn1/2r1RK1Q b - - 0 1 illegal: No proof kernel
b2R1K1B/R5rB/Pp1pNQ1B/1P4q1/5nrr/3b1kn1/QBP2p2/3N2qB b - - 0 1 illegal: No possible last move
1KB5/Bp2Q2q/1P3b1p/Pp1q4/2nn1rB1/2Q3R1/1N1NPbrk/B3nRB1 b - - 0 1 illegal: No possible last move
2RrQ3/Kp6/bp1QQb1r/rN1BPk2/1PQ2P1Q/N1n2q1R/3n2pB/4q3 b - - 0 1 illegal: No proof kernel
r1q2RBK/2b3B1/R2B3P/1Q1rNp1r/3pQB2/2kB3P/2p1b1nP/n3rN2 b - - 0 1 illegal: No proof kernel
RRQ5/Q2kbnK1/3Pp1B1/1p2B3/rN3NqQ/1prb2QP/2Qn3P/4nn2 b - - 0 1 illegal: No possible last move, all moves rejected
K1kN1RN1/1N1bPQ2/nN2BB2/1p1p1q2/1Q1P4/2b1pR1b/1P3rr1/nN1b4 b - - 0 1 illegal: No proof kernel
n3b1k1/2P1KQNq/2p3Rq/3BNBp1/2P1B1Pr/1B3p2/1Q1qn2B/2b3bR b - - 0 2 illegal: No possible last move, all moves rejected
r1QRBK2/1nB3p1/2rR4/1b2B1Pq/1r3P1n/QBp1kp2/1Pq5/2N1qNB1 b - - 0 1 illegal: No possible last move
2Q5/R1pb1Nq1/Pkq3R1/p1P1pnb1/2B1QB2/4N3/PrQ3Q1/K1bQ1q1r b - - 1 2 illegal: No possible last move, all moves rejected
7b/2Qb2BR/r1B2Bp1/brBpPpPR/3Nb3/K2n3k/2q2b1P/Q1B4N b - - 0 1 illegal: No possible last move, all moves rejected
B3Kb2/4p2n/1p1RbN2/1Q3NN1/n2r1kNp/P2qPn2/QB5P/1bR1n1N1 b - - 1 2 legal: proof: d4 a5 c4 c5 b4 axb4 f4 g5 fxg5 d5 cxd5 c4 Kf2 Ra5 Ke1 Rc5 dxc5 Qa5 Qd4 Qb6 Qd1 Qd8 Kf2 Kd7 Kg3 h5 Kh4 f5 g4 f4 g6 b6 Kg5 f3 g7 h4 Kg6 f2 Kf7 c3 c6+ Kd6 a3 Ke5 c7 c2 g5 b3 g6 b2 d6 Bg4 c8N Bd7 Qd2 Rh5 Bg2 f1N Nc3 b1B Ba8 Rh6 Ne4 Bb5 d7 Nc6 Ng5 Na7 Bb2+ Kf5 Nd6+ Kg4 Qd5 c1N Nf5 Kf4 Qa2 Nf6 g8N Nd2 g7 Nh7 Nf6 Nf3 g8N Nd3 Ng4 Rd6 N8f6 Rd4 Nge3 Qc8 d8Q Qc4+ Qd5 Nde1 Neg4 Qd3 Qc5 Ba4 Qb5 Bb3+ Ke8 Bc4 Qb4 Be6 Qb5 Bc2 Rd1 Bb1 Qc5 Nb5 Rd2 Nc3 Qb5 Qe3 Rd3 Na4 Rd1 Rb4 Rd6 Qd3 Qbd5 Nd4 Qb5 Nec2 N1f3 Rc4 Rc1 Ne1 Ng1 Ndf3 Ng7 Re4 Nf5 Rd4 e3+
5QK1/p1p2n1P/PnB1q2B/1B2N2n/n1RN2P1/p6b/2B2r1r/B1RQq1k1 b - - 0 1 illegal: No proof kernel
5k2/2pb1Pbr/2r2Qp1/pBrq3Q/1N1nQqPK/1rQ2Q2/PR4B1/1R1N4 b - - 0 2 legal: proof: d4 e5 dxe5 b5 c4 f6 cxb5 Kf7 e4 Ba6 e6+ Kg6 e5 Qe8 e7 Bc8 e6 Qd8 h4 Nc6 Bf4 Ne5 h5+ Kf5 Bh2 Ng6 Be5 fxe5 Qd3+ Kf6 Qd1 Nf4 h6 g6 Qd2 Nh5 Qd1 Ng7 hxg7 Bb7 Ne2 Ba6 Ng1 Bc8 e8B Ke7 g4 h5 f4 a5 Kf2 d5 Kg3 e4 b4 d4 f5 d3 b6 d2 b7 e3 b8Q e2 b5 e1R b6 Ba6 f6+ Kd6 f7 Ke7 b7 Rh6 Bg2 Qd6+ Kh4 Re3 Bb5 Rh8 Na3 Rh7 Nc2 Rb3 Rh2 Qf4 Qf3 d1Q Rb1 Qd5 Ne2 Nh6 g8Q Bg7 Nb4 Ra7 Nc3 Nf5+ Kh3 h4 Qh8 Ra8 Nd1 Nd4 Qbg8 Ra7 b8Q Bc8 Qb6 Bd7 Qa8 Rh5 Qac6 Ra6 Qcc3 Rf5 Qh5 Kf8 Qa7 Rc6 Qac5+ Qdd6 Qe5 Rg5 Qf6 Rgc5 Bh1 Qde5 Rhb2 Qd5 Bg2 Qh6 Kh2 h3 Kg3 h2 Kh4 h1R+ Kg3 Bh8 Qhh4 Qe3 Qhg5 Rh7 Qh5 Qee4 Kh4 Rh6 Qg5 Qf4 e7+ Kg7 e8Q Rh7 Qee2 Kf8 Qee4 Bg7 Qf6
R1B2qN1/k1rp2q1/2Qp2BN/1P2PRBQ/2BP1K1b/rb2B2b/2n3bp/8 b - - 0 1 illegal: No proof kernel
1R3B2/rp2Pb2/r1B1RPR1/1PQ3n1/4Rqqp/1q3qQp/1NNk2nR/6K1 b - - 0 1 illegal: No proof kernel
1nbK1Q2/1BN2p1n/2p1QBPQ/3Qrp2/1qQ2qnN/1RP1R3/3b2P1/2n4k b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 b5 d4 b4 f5 e6 a3 exf5 axb4 Ra6 b5 Rg6 Ra2 Re6 Ra1 Re5 dxe5 Qf6 Ra4 Qe7 Ra1 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 d5 e4 h5 b4 c6 g6 h4 c3 a4 b6 a3 b7 h3 b5 a2 b6 h2 Nf3 Nf6 Bg5 Nh7 Na3 Qd7 Nb5 Nf6 Nc7+ Ke7 Kc5 d4 e6 d3 e5 d2 Ba6 Rh7 Nh4 Bg7 Re1 h1Q Rb1 a1N Rb3 Bh6 Re3 Qh2 Qg4 d1N Qc4 Qf4 Qd5 Kf8 e7+ Kg7 e8Q Rh8 e6 Nh7 e7 Nf2 Qc4 Qd1 Qd7 Ng4 e8Q Qb1 Qee6 Re8 Qdd5 Qbe4 Be7 Bg5 Bf6+ Kh6 Qd2 Kh5 Qdd5 Ne5 Kd6 Kg4 Na8 Bh6 Kc7 Re7+ Kd8 Qb1 Re1 Kg3 Nc7 Kh2 Re4 Ng4 Re3 Nd7 b8Q Kh1 Qa8 Nb8 b7 Qb2 Qa7 Qa3 Qad4 Qb4 Qd2 Bg5 Qed6 Re5 Q6e6 Nd7 b8Q Bh6 Qbb5 Nb8 Bb7 Bg5 Qbc5 Bh6 Rb2 Nb3 Qf8 Nc1 Rb3 Qf2 Re2 Qg3 Qg5 Qh2 Qh5 Bd2 Re3 Qf4 Qhh6
2n1r1N1/P1KR3k/1n4bb/N1BP1RQ1/BpQ3N1/2p1np1N/1P3b1r/2bN4 b - - 0 1 illegal: No proof kernel
K4k1b/2P3p1/1q1pNqP1/BB3R1R/1Nnr4/1QR2n1p/2qP2q1/1RR3nQ b - - 0 1 illegal: Other
4r1QK/3q1R1B/4p1pr/p2Q2BP/npk1N2R/3bPnB1/n1P4B/1B3N1b b - - 0 1 illegal: No proof kernel
3b1N2/q2B3p/PQ2QNn1/Rbrp1N1N/2r1B2N/P1pPKR2/2p1n3/4kr2 b - - 0 1 illegal: No proof kernel
6Nn/P1rPP3/B1kB2N1/q3N2b/Nbp1pR2/Qp1rp3/R2QN1n1/2nK4 b - - 0 1 illegal: No proof kernel
bR1q1k2/3n4/rp1pBn2/2NpQB2/2BNB1R1/3Pb3/P1P1p2r/2B1KQ1q b - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 f5 exf5 a4 Qf3 a3 Qd5 c6 bxa3 cxd5 a4 Bh6 a5 Bf8 g4 e5 f4 h5 f6 e4 f5 h4 d3 e3 f7+ Ke7 a6 e2 f6+ Kd6 g6 h3 a7 h2 g5 Rh4 g7 Nc6 g6 Rb4 Nc3 Rf4 Bh3 Nb8 Na4 Nc6 Nc5 Rc4 Rb1 Na5 Bf5 Rd4 Nf3 Rg4 Rg1 h1Q Nd4 Nc6 Rb2 Be7 f8Q Rg2 f7 Nb8 Qe8 Rh2 f8Q Nf6 Qff7 Bf8 g8B Bh6 g7 Be3 Qe4 Nc6 Qf4+ Ne5 Qh5 Ke7 Qf1 Qb6 Rg4 Qd8 Qg5 Ke8 Bge6 Ke7 g8B Kf8 Bgh7 d6 Rb6 Rb8 a8B Bd7 Be4 Bc6 Bhf5 Ned7 Qf4 Rc8 Qe5 Rc7 Ra6 b6 Bb7 Rc8 Ra8 Rc7 Ba6 Ra7 Bb5 Ra6 Rb8 Ba8 Bc4
rQNn1r1k/1P2Q3/R2RQN1Q/2r5/npPQ1p2/1K2bP2/3p1Bp1/2q1r2B b - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 dxe5 h5 bxc5 hxg4 a4 b4 Bd2 Ba6 Bc1 Bb5 axb5 Rh7 Qd2 Rh3 Qd1 Rh8 Kd2 a5 c4 d5 Kc2 f5 e4 Kf7 h4 g5 e6+ Kg7 b6 f4 h5 g3 f3 g2 b7 d4 c6 g4 c7 d3+ Kb3 g3 c8Q Rh6 e7 Rh7 e8Q Be7 h6+ Kh8 e5 Ra6 e6 Rc6 Nh3 g1R Nf2 Qd5 Nc3 Na6 Nb5 Bc5 e7 Rf7 h7 Be3 Qe6 Rc5 Ne4 Rf8 Qb8 Nh6 e8Q Nf7 Bg2 Re1 Q8e7 Nd8 Rh6 Qf5 Bh1 g2 Na7 a4+ Ka2 a3 Nc8 Qf6 Kb3 a2 Rg6 Qh4 Nf6 Qh2 Bb2 Qg1 Bd4 Qf1 Qd2 Qg1 Rd1 a1R Qf2 Qf1 Qh4 Ra4 Qh6 d2 Ra1 Nc7 Ra2 Ra8 Ra6 Nd5 Rd6 Nc3 Ra6 Bg1 Bf2 Na4 Rg5 Re2 Rd5 Qc1 Rdd6 Re1 Bg3 Bd4 Bf2 Be3 Qh5 Rf7 Qhe5 Kg7 h8Q+ Kg6 Qh4 Kg7 Qhg5+ Kh8 Qd4 Rf8 Qh6#
5Q2/q3bqbR/pP3b1p/2Q2p1P/1BQr1P2/K1nNNBQ1/2p1b3/1k4RQ b - - 0 1 legal: proof: c4 d5 a4 dxc4 g4 f5 d4 b5 axb5 a6 e4 Nh6 d5 Nd7 e5 Ng8 g5 Ndf6 gxf6 Rb8 Nc3 Rb6 Nb1 Rd6 exd6 Bd7 Bh3 Be6 Bf1 Bc8 Kd2 Kf7 Kc3 c5 h4 g5 b4 e5 Kb2 c3+ Ka2 c4 f4 e4 b6 h6 d7 g4 b5 c2 b7 c3 b8Q e3 h5 g3 d6 Ke6 f7 e2 Ka3 e1B Qc7 g2 Nd2 Kd5 Nc4+ Ke4 Bd2 Bg7 f8Q Bb7 Rc1 Nf6 Nh3 g1Q Be2 Bh4 Bf3+ Kd3 Ne3 Qe8 d8Q Nd5 d7 Qf7 Qfc5 Bhf6 Qdf8 Bc6 Rb1 c1B+ Rb2 c2 d8Q Be8 Qa8 Nc3 Qe1 Bd7 Qab7 Be6 Qbc6 Bc4 Qg3 Qf2 Rg1 Rg8 Qfe7 Rd8 Qf8 Rd4 Qcc8 Nd1 Bb4 Nc3 Qe4+ Kd2 Qce6 Be2 Qec4 Qf1 Nf2 Be7 Nd3 Qf2 Kb3 Bgf6 Rb1 Bb2 Rbe1 Ba1 Ka3 Bg7 Qh4 Bgf6 Rg7 Qg1 Rh7 Qf2 Rg1 Bg7 Ne1 Kc1 Qg3 Kb1 Qea8 Qg2 b6 Qh1 Bg4 Qb7 Bf3 Qa7 Nd3+ Nd1 Bg4 Rd8 Qae4 Baf6 Qh1 Rd4 Ne1 Nc3 Bf3 Bh4 Q4d5 Bhg5 Qdc4 B5f6 Nd3+
N5q1/2p2n1b/1b2Rp1Q/p2N3p/Q4PR1/1b2R2P/PB3rbK/qk1B1R1R b - - 2 3 legal: proof: d4 a5 g4 b5 b4 e5 c4 exd4 cxb5 f6 b6 Ne7 g5 Ng8 b5 Ke7 g6 Ra6 bxa6 Nc6 Kd2 Ne5 Ke1 Nf7 gxf7 Kd6 Qd3 Ke6 Qd1 Ke7 e4 Kd6 f4 Kc5 Kf2 Kb4 Kg3 g5 e5 d5 b7 d3 b8R+ Bb7 a7 d2 a8Q d4 e6 d3 e7 g4 e8R Nh6 Ne2 Bc5 f8R Bb6 Bb2 Bg2 Nbc3 Nf7 Re3 h5 h3 Rg8 Qc2 d1B Na4 d2 Nec3 Qd4 Qce4 Bb3 Rbe8 d1B Re6 Bdc2 Kh2 Rg6 Rg8 g3+ Kg1 Bb1 Be2 Rg5 Qec6 Bh7 Bd1 Qd8 Rg7 Qg8 Qf8+ Rc5 Rg4 Kc4 R3e5 Kd3 Nd5 Kd2 Qh6 Rc2+ Qc5 Kd3 Rb1 Rf2 Qa3 Kd2 Re1 Kd3 R1e3+ Kd2 Bf3 Kc2 Rf1 Re2 Qb4 Rf2 Bd1+ Kb1 Qb5 Bf3 Qc6 g2 Kh2 Bfe4 Nc5 Bf3 Qa4 Bfe4 Nd7 Bf3 Kg3 g1Q+ Kh4 Ng5 Rfe1 Ba7 Be2+ Kc2 N7b6 Bg2 Kg3 Nf7 Na8 Bb6 Rd1 Qf1 Kh2 Qe1 Rd4 Qa1 Rdd1 Bd4 Rdf1 Bb6 Bd1+ Kb1 Rg7 Qd8 Rg6 Qg8 Rg4
5BN1/Q2q4/ppP3B1/2pBKR2/knpBR3/1rbPn2b/5Pp1/1rB3QN b - - 0 1 illegal: No proof kernel
R1N5/2nPQ2R/2Kn2Np/1pbP4/p1R3rQ/1pRR1B1p/bB5P/1q4kr b - - 0 1 illegal: Other
q1Nq3r/2nP4/pB4p1/pb1p3B/1PBBNn2/Pp3B2/5QQR/R1bk3K b - - 0 1 illegal: Other
1B2r1R1/1BP1nKR1/4BNp1/2rQN1q1/B1bn3p/n3bBPP/3n2kr/1nQ5 b - - 0 1 illegal: No possible last move, all moves rejected
q1NQ4/2n2p1N/pn1b2b1/P1BB1k2/3nb3/Q2Q3P/R1Qn1P1n/1rR1KQr1 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 g4 hxg4 bxc5 Be7 Bg5 Bd6 Bc1 Bf8 a4 Ke7 e4 Ke6 c4 g5 h3 d5 c6 b5 c7 d4 a5 b4 c5 b3 c6 g3 Be3 g4 Nc3 d3 Rc1 d2+ Ke2 b2 Nd5 b1N Nf3 a6 Rg1 g2 Bc5 g3 Ne7 Bb7 c8Q+ Nd7 c7 Rb8 Qe1 Qe8 Qd8 Nb6 Nc8 Nf6 Qd3 Bd6 Kd1 Nfd5 Ng5+ Kd7 Qee3 Rg8 Nh7 Ke6 Be2 Rg4 Bf3 Qc6 Ke2 d1B+ Ke1 Nd2 Qee2 Rg7 Qf1 Bc2 Ra1 Qe8 Ra2 Qf8 Rh1 g1N Qa3 g2 Qfd3 Ne2 Rg1 Kd7 e6+ Kc6 e5 Nd4 e7 Kd7 Qf1 Ke6 e8Q+ Kf5 e6 Rg4 Rh1 g1N e7 Qg8 Qd8 Be4 Bg2 Ngf3+ Kd1 Rg5 e8Q Nh2 Qeb5 Qe8 Bf3 Rg1 Qbd3 Bc6 Bg2 Ba4+ Ke1 Bc2 Bf3 Qc6 Bd1 Bb1 Bb3 Qa8 Bc4 Nf4 Bd5 Nfe6 Na7 Rb7 c8Q Bc2 Qc6 Nc7 Nc8 Bd1 Qh4 Bh5 Qd8 Bg6 Qca4 Nd7 Qac4 Rb1+ Qcc1 Nb6 Qd1 Rb5 Q1c2 Rb1+ Qac1 Kf4 Kd1 Nd7 Qe1 Rg4 Qee2 Ke5 Qa3 Nb6 Qed3 Nde6 Ke2 Kf5 Qg1 Rg5 Qg2 Rg3 Rc1 Nd4+ Ke1 Rg4 Qgf1 Rg2 Ra1 Rg1 Ra2
1N1nb2R/1NBBb1R1/R6R/1Kb4p/Rp4n1/3r3P/1PqP2rn/kr2Q1rQ b - - 0 1 illegal: No possible last move, all moves rejected
Rnq2Qb1/Kpn1N1bN/1PqR2Bk/2NP2B1/Nbn1N3/Q2rp3/1n2P3/3r4 b - - 0 1 illegal: No proof kernel
1N4b1/BB1QR1p1/p1Bq1qP1/r1N1P3/2B3B1/1Rr1q1rn/PQ2n3/1Kb1kr2 b - - 0 1 illegal: No proof kernel
1R1n2n1/4B1p1/2p2bqk/2q1r3/q1b3Bq/1Rn2KPR/2P1QP1r/2RQN1RN b - - 0 1 illegal: No proof kernel
2N1k2K/2Rp1pBR/1n2p2b/1rRP1P2/2NPn1Q1/rb5Q/r5qn/b4BRR b - - 0 1 illegal: No proof kernel
2Rb2qr/pQ3Q1N/P2BP1B1/qpr2b1B/k2Rp3/1BBb2n1/1P3K2/N1n3r1 b - - 0 1 illegal: No proof kernel
5RNn/rn1q4/1NBNnP1p/pq1N2B1/4pRb1/P1r1QN2/Q3P2r/3kb1K1 b - - 0 1 illegal: No proof kernel
qBb5/NNrp1p2/R2Prkrq/1B2n2P/QRp1q2b/6QR/4RPnK/4R3 b - - 0 1 illegal: No proof kernel
4KB2/1Qpp1R2/2bq2b1/1r1p2NN/P1B4n/R1b3k1/B1PP2nr/Bb3QrB b - - 0 1 illegal: No proof kernel
3Knr2/kR1p1B1p/2bPQ2P/1R2nPpr/2Rb2R1/1N2NQ2/p2R1r1B/3b3q b - - 0 1 illegal: No proof kernel
1brQ4/PqQb1bpp/NpR3BQ/3QK1BP/1np1Nr2/2Pr4/3Q2R1/k2n4 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 f5 gxf5 Ra7 Bg5 Ra6 Bc1 Ra8 Kd2 Kf7 Kd3 c5 Ke4 b3 h4 b6 a4 d6 f4 b2 e6+ Kf6 e7 c4 e8Q Nh6 a5 Be6 c3 Qe7 a6 Qc7 a7 Nf7 Nf3 Nc6 Ng5 Nd4 Qc6 Rd8 Na3 b1B+ Nc2 Nh6 Qd5 Rg8 Ra2 Ra8 Qd2 Ke7 f6+ Kd7 f7 Ng4 f5 Rc8 f6 Nc6 e3 Qb8 Bd3 Qb7 Nb4 Nf2+ Kf4 Bh3 e4 Nd1 Na6 Nb4 e5 Be7 h5 Rgf8 Bg6 Bbf5 Rg1 Be6 Rg4 Bd8 Ra5 Bc7 Ne4 Bb8 Rg2 Bhg4 Rc5 Bh3 Q5d4 d5 Rc6 Bhf5 Qc5 d4 Qa5 d3 Qb5 Rfd8 f8Q Bf7 Qfc5 Rf8 Qce3 Ke8 Qd5 Bd7 Rd6 Kd8 e6 Ke8 Ke5 Kd8 Qb2 d2 Qh6 Ke8 Nac5 Kd8 e7+ Kc7 e8Q Nf2 Qee6 d1R Qe7 Rd3 Bg5 Nd1 Qd2 Rg3 Q5d4 Rd3 Rd5 Kc6+ Rd6+ Kb5 Qd5 Ka5 Na6+ Ka4 Qd8 Ka3 Qc7 Nc2 Rc6 Kb2 Bf4 Ka1 Bg5 Bfe6 f7 Nb4 Qdd6 Rfe8 f8Q Bf7+ Qfe7 Rf8 Qef6 Bg8 Qfd8 Rf4 Qe6 Bf7 Qd5
1br1b3/R1b4p/pp1kPQ1N/1n1R2qB/qP1Nr2P/R2R3K/R2pn3/B6Q b - - 0 1 illegal: No proof kernel
3Q1q2/1bpB1nb1/1k3nB1/1N3R1r/1Rrp1Rp1/N1P3Pn/q1pPQR2/3RK3 b - - 2 3 illegal: No proof kernel
2bQ1Rkq/n1R2nB1/2p1Bp2/1PP5/1prp3R/2b4Q/bP1R2br/KNN4R b - - 0 1 illegal: No possible last move, all moves rejected
Qbq1bB2/1r2Nb1n/1kpp1bQQ/3Ppp1R/2r4N/2P2B2/1Qn1PK2/R6Q b - - 2 3 legal: proof: f4 g5 fxg5 b5 a4 Bg7 axb5 Be5 Kf2 Bd6 Ke1 Bxh2 d4 a5 g4 h5 b4 f5 b6 e6 b7 c6 b5 h4 g6 h3 b6 a4 g7 a3 g5 a2 g6 Na6 b8Q Ra7 b7 Rh5 Bh6 Nf6 Nc3 Rh4 Nf3 Nb4 Nd5 Nh7 Qa8 Bb8 Kf2 h2 Ne7 d6 g8Q+ Kd7 g7 Kc7 Bg2 Bd7 Qh8 Kb6 g8Q Be8 Qg6 Qc8 Bf8 Re4 Nh4 Rg4 Rb1 a1B Bf3 Bc3 Ra1 Bb2 Rg1 h1B d5 Bf6 c3 e5 Qf1 Rc4 Rg5 Nc2 Rh5 Bg2 Qd1 Bh3 Qhg7 Bg4 Qh1 Bf7 Rg5 Bh5 Q7h6 Bc7 b8Q+ Rb7 Qa3 Be8 Qba8 Bb8 Qb2+ Kc7 Qgg7 Bhg6 Rh5 Bgf7 Qbc1 Kb6 Qgg6 Bh8 Qca3 Bf6 Qb2+
Q3Q1RN/4NRbb/4k1p1/nr1Pqp1p/1nR2p2/K1p1RP2/1Br3P1/bB5R b - - 0 1 illegal: No possible last move, all moves rejected
N3N1Qr/2p3r1/pnP4N/1NBpR3/q1p2pb1/n1PBRk2/P2Qr3/N3bK2 b - - 1 2 illegal: No proof kernel
B3nb1B/knR3Q1/1r1bb1PQ/Q2Q1P2/3R2K1/NRN5/r3r2P/2r5 b - - 0 1 legal: proof: e4 g5 f4 b5 b4 a5 g4 d5 c4 h5 gxh5 f5 exf5 c5 bxc5 b4 cxd5 g4 a3 Qd6 axb4 Qg6 c6 Qg5 fxg5 axb4 Ke2 Kd8 d4 Kc7 d6+ Kb6 d5 e5 d7 g3 Kf3 e4+ Kg4 g2 d8R b3 g6 b2 h6 e3 d6 e2 d7 e1B c7 Ba5 h7 Ba3 Qd5 Be1 Ne2 g1R+ Bg2 Bh4 Nec3 Bf8 Ra7 Bhe7 Na3 b1R Bb2 Nc6 Rb7+ Ka6 Rb3 Rgc1 Rd1 Ka7 Rd4 Na5 Be4 Bb7 Rc8 Bd6 d8Q Bc6 Qe7 Bd7 Qg7 Nb7 Bg2 Be6 Ba1 Ne7 Bh1 Rg8 h8Q Rb2 Qhh6 Re2 Rb8 Rh8 c8Q Ng8 Qd8 Rh7 Rc8 Nf6+ Kf3 Rh8 Rc7 Ne8 Kg4 Rh7 Qge5 Rf7 Qe7 Rf6 Qeg7 Kb8 Bb2 Ra6 Qa5 Ka7 Qed5 Rec2 Qe7 Bf7 Qa4 Bf4 Ne4 Rd1 Qdb5 Rdc1 Rd1 Re6 Nc4 Rd6 Bh8 Be6 Qeg7 Re2 Rd4 Rb6 Nc3 B4d6 Qab4 Raa2 Na3 Kb8 Q4c4 Nd8 Ba8 Nb7 Qcd5 Ka7 Qa5+
4RR2/1n3N1R/nP2R3/2q4b/4rNB1/3QpQ1N/3PK1Pk/1nb3Bn b - - 0 1 legal: proof: b4 b5 e4 d5 a4 f5 exf5 a5 axb5 c5 bxc6 g5 bxa5 d4 h4 gxh4 c3 Na6 cxd4 Rb8 d5 Rb6 axb6 Nb8 f4 Kf7 f6 Kg6 f5+ Kg5 f7 Kf4 d6 Kg3 f6 h5 c7 e5 d7 e4 Nh3 e3 Bd3 Nh6 Bf5 Na6 Ra5 Qe7 d8Q Qc5 Bg4 Nf5 Nc3 Nd6 Bb2 Nb7 Nd5 Bd7 c8R Be8 Ke2 Be7 f8N Rh6 f7 Re6 Rc6 Re4 Rh6 Bf6 Ba1 Bb2 Ne6 Bc1 f8R Bf7 Re8 Bg6 Rf1 Kh2 Ndf4 Bf7 Bf6 Bg6 Nhg5 h3 Qd3 h4 Nf7 Bh5 Ra4 Kg3 Rh7 h2 Neg5 h1N Be5 Kh2 Ngh3 Nf2 Rd4 Qa3 Rd6 Qc5 Ng1 h3 Rde6 Rb4 Bf6 Ne4 Bh4 Rc4 Bf2 Nc3+ Ke1 Nb1 Qf3 Re4 Ke2 Bb2 Rc1 Ba3 Rc2 Bc1 Rf8 Qb4 Rcc8 Qc5 Rce8 Kh1 Bh4 h2 Bg3 Qe7 Ngh3 Qc5 Nf2+ Kg1 Bh4 h1N N2h3+ Kh2 Be1 Qf5 Bf2 Qc5 Bg1#
b2QQN2/P7/B2q1R2/8/qnqQQnRK/1P1q2rB/2P1bk2/2Nb2R1 b - - 0 1 legal: proof: h4 a5 g3 e6 b3 a4 b4 Bc5 Bb2 Bb6 Bc1 Ra5 g4 Rh5 gxh5 Ba5 Rh2 b6 Rh1 b5 bxa5 c5 f4 e5 fxe5 h6 d4 b4 dxc5 b3 Bg5 hxg5 axb3 Rh6 Rh3 Rh7 Rh1 Rh8 Kf2 Ke7 Kg3 Ke6 e4 f5 a6 d5 c6 f4+ Kg4 a3 h6 d4 h5 a2 h7 f3 h6 f2 c7 d3 a7 d2 Bh3 f1B Qe1 d1B+ Nf3 Na6 Qe2 Qd6 Nbd2 Ne7 Nc4 Ng6 Rg1 Nb4 Ne1 Nf4 Nb6 Bb7 Nd3 Ba8 Nc1 Rg8 h8R g6 Kg3+ g4 h7 g5 Nd7 Rg6 Qd3 Bfe2 c8B Rg8 Rb1 a1Q Qd4 Qa4 Ba6 Rg7 Rf8 Rg8 h8Q Rg7 Rf5 Rg8 Kf2 g3+ Ke1 g2 Kf2 g4 Kg3 Rg6 Kh4 g3 Qd8 Rg7 Rf1 g1Q Rg5+ Bg4 Rf3 g2 Ra1 Qe3 Nf8+ Kf7 Rf2 Bge2 Rg4 g1Q Rb1 Qd3 e6+ Kg8 e5 Qf1 e7 Kf7 Rf3 Rg6 e8Q+ Kg7 e6+ Kh6 Rg1 Rg3 e7 Qc4 Qc6 Qd3 e8Q Qc4 Re3 Qf3 Rc3 Qfd3 Qce4 Rf3 Q4f6+ Ng6+ Kg4 Q3d4 Rg2 Rd3+ Kf5 Kh5 Rg4 Qe3 Qfd4 Qd2 Rf4 Rg3 Rcf3 Qdd3 Na2 Bf1 Rf2 Bf3 Re1 Bd1 Nc1 Bfe2 Rg1 Rg4 Qb8 Kh4 Qbd8+ Qe7 Rh1 Kg3 Rff1 Qd6 Rhg1+ Kh2 R1f3 Rg3 Rg4 Bf1 Kg5 Bfe2 Rf6 Nf4 Rg2+ Kh1 Rf2+ Kg1 Rg2+ Kf1 Kh4 Ke1 Qa1 Kf1 Rg1+ Kf2 Qad4+
1nBbNQ1b/2Q2PR1/1p1R1B2/2n2rr1/Q1K3QP/7P/kb5N/q4Nq1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 axb4 exf5 Bd7 Ba3 Be6 Bc1 Bc8 a4 h5 g3 h4 gxh4 b3 a5 b6 Qxb3 Nh6 a6 Bd7 Qd1 Bb5 Bg2 Bf1 Bxf1 Ng8 Ke2 Kd7 Kd3 Kd6 f4 Kc5 d6 Kb4 f6 c5 f7 e5 a7 g5 h3 g4 f5 g3 f6 g2 d7 Bh6 f8Q Bf4 f7 Bg3 Qg4+ Kb3 Bb2 Qf6 d8N Rh5 Ne6 Rg5 Nf3 g1Q Ng7 Bh2 Ne8 e4+ Ke2 e3 Kd3 Bd6 Nh2 e2 Bg2 e1B Bb7 Be5 Bc8 Bc7 Bd4 Qh8 Bf6 Bd8 Ra4 Rf5 Rd4 Ka2 Rd6 c4+ Kc3 Bg3 d4 Be5 Nd2 Qg7 Kb4 c3 d5 c2 Ndf1 c1B Kb5 Bcb2 Kc4 Qe3 Rg1 Rg5 Rg3 Qg1 Rc6 Bed4 d6 Qh8 d7 Rf5 Be5 Nf6 Rd6 Ne4 Bf6 Nc5 Rg2 Bc7 d8Q Qg7 Qd7 Bd8 Be7 Qe5 Qc7 Qe1 Rg3 Bh8 Bf6 Qd1 Qf3 Qa1 Rg7 Rg5 Qg4 Nc6 Bb7 Rc8 Ba6 Nb8 a8Q Rf5 Qce7 Rc7 Bc8+ Ra7 Qae4 Ra3 Qc7 Rg3 Qgf4 Rgg5 Qg4 Nb3 Qec6 Nc5 Qa4+
1b6/QB1pRnr1/3b1Kn1/Rk2N1P1/q1Nr2R1/P2Q1B1P/2b5/R3q1B1 b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 e4 axb4 exf5 Qc7 Bd3 Qb6 Bf1 Qd8 g4 b5 f4 g5 fxg5 h5 gxh5 Ra5 c4 Ra3 cxb5 Ra8 Ke2 e5 Ke3 b3 Ke4 b2 c6 Qc7 a3 Ra7 f6 Bc5 Kf5 e4 h3 e3 b6 e2 h6 e1B h7 Bg3 b7 Bgd6 f7+ Kd8 f8R+ Ke7 Nd2 Bh2 Be2 Kd6 Bf3 Qa5 c7 Nc6 b8Q Bb7 Re8 Qa4 Re7 Nh6+ Kf6 Rg8 h8R Nf7 Rh6 b1Q Qa8 Nce5 c8B Rg7 Nc4+ Kc7 Qd3 Be4 Be3 Qe1 Bb7 Bd6 Bd4 Ra6 Qa7 Ng6 Bf2 Bhf4 Rh2 Rb6 Rg2 Rb4 Rg4 Bf5 Be2 Be4 Nf3 Bh2 Nfe5 Bf5 Qf3 Bc2 Bg1 Bf4 Qd3 Bh2 Nd2 Rd4 Bef3 Bf4 Qa8 Kb6 Ndc4+ Kb5 Qa7 Ngh8 Kf5 Bb8 Ra6 Ng6 Kf6 Bh2 Nc6 Bhc7 N6e5 Bd6 Ra5+
1RQ4n/2PR2BR/1p2NKN1/PPQ2B2/rbb1rQ2/1n4kq/4r3/2rQ4 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 g4 cxd4 gxh5 a5 c4 d3 c5 Qb6 Na3 Qb5 Nxb5 a4 Qxa4 Ra7 Qd1 Ra8 Na7 d2+ Kxd2 Nf6 Ke1 Ng8 Ke2 e6 Qd2 Kf7 Kf3 Kf6 Kf4 d5 a4 b6 h4 d4 b4 g6 a5 d3 c6 Rh7 c7 Re7 h6 Re8 h5 Bc5 b5 Rf8 h7 Na6 h8R Nh6 Nh3 Nf7 h6 g5+ Kg4 Ke5 f4+ Ke4 h7 e5 Bb2 Be6 Nc6 Rae8 Rd1 Bd6 Bd4 Nc5 Ne7 Nb3 Ng6 Bc5 Kh5 Kf3 f6 e4 f5 g4 Nhf4 g3 Bh3 e3 Rg8 e2 h8Q e1R Qc1 Nd8 Kg5 d2 f7 g2 Bg7 Kg3 f6 g1Q Bg4 Qf2 Rh7 Qh2 Qa1 Bd5 Kf5 R8e3 Ne6 R1e2 Qd4 Qh3 Kg5 Nb7 Kf5 Rd8 f8Q Re4 f7 Nd6+ Kg5 Ba3 Qc5 Rd7 Qd8 Ra4 f8Q Bc4 Qff5 Bb4 Kf6 Nf7 Rf8 Rd4 Qf4+ Kg2 Qg8 Rde4 Bf5 Nh8 Qd7 Na1 Rb8 Nb3 Qf1+ Kh2 Qgc8 Kg3 Qf4+ Kg2 Rc1 d1R Qdd2 Rf1 Rd1 Rh1 Qc2 Rf1 Rd7 Rc1 Qf1+ Kh2 Qcd1 Kg3 Qf4+
bB2b1N1/1PRq1Bp1/1K2k3/1Q1Nq1Qq/3B2Nn/1b2PRrN/5P2/4r3 b - - 0 1 legal: proof: d4 d5 g4 e5 a4 b5 axb5 exd4 c4 Ba6 cxd5 Bc8 h4 f5 gxf5 Kd7 f6 Be7 f7 Bg5 hxg5 Kd6 Bh3 Nd7 Bf1 Ndf6 gxf6 Kd7 Kd2 h5 Kd3 a5 Kc4 c5 f8N+ Kd6 b4 d3 b6 h4 Kb5 d2 e3 c4 b7 c3 b8B+ Qc7 f7 a4 Rh3 a3 Ng6 c2 f8N a2 Rf3 h3 Bd3 h2 Ne5 h1B Nc3 Bg2 Nfg6 Bb7 Qe2 d1B Nh3 Rh4 Ng4 Ne7 Bb2 Nf5 Ne7 c1Q Ng8 Bb3 Bb1 Kd7 d6 Qh1 Nd5 Ke6 Bd4 Qd7+ Kb6 Bc6 b5 Rh7 Qb2 Nh4 Bg6 Rh6 Rf1 a1Q Rc1 Ra2 Qb1 Re2 Rc4 Ba8 Rc7 Re1 Qd3 Rh5 Qc4 Rg5 Qa4 Qe7 d7 Bc6 d8Q Be8 Qa5 Qd7 Qa4 Rf5 Qg5 Qh2 Bc5 Qae5 Bd4 Rf7 Ka7 Rf8 b6 Rf4 Qb5 Re4 N4h6 Rg4 Kb7 Rg3 Ng4 Bh1 Nc3 Ra1 Ng1 Rg2 Rf7 Nf3 Rf8 Qh5 Nh3 Re1 Ka7 Bd5 Ka6 Ba8 b7 Nh4 Kb6 Rg3 Rf4 Bd5 Rf3 Bc4 Nd5 Bb3 Bf7+
1nQ3RQ/1P1Pk2n/1BpN1P2/r2b3N/6br/R3N1n1/3K2b1/1R1BR1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 c4 exf4 cxd5 Rh7 Ra3 Rh6 Ra1 Rh8 Nh3 g5 Ng1 h4 Ra5 Bc5 Qb3 Bf2+ Kd1 Bg3 Ra1 Qf6 Qa4 Qg6 Qc2 Qh5 gxh5 g4 Qb3 Bf2 Qa4 g3 Qb3 g2 Qa4 Bg3 hxg3 Ne7 Ke1 Ng8 Qc2 Ba6 Qd1 Bc8 b4 a5 e4 a4 d4 h3 d6 a3 b6 f3 g4 f2+ Kd2 a2 d7+ Ke7 d8N c6 b7 h2 b5 Nf6 e5 Bf5 d5 Ne8 d6+ Kd7 b6 Nc7 g5 Bd3 g6 Nba6 b8R Bf5 h6 Rg8 g7 Nb4 h7 Ra4 h8Q Nd3 Be2 f1B Nc3 Nd5 Nb7 N3b4 Nh3 g1N Nf4 Na6 Nh5 Nf6 Nd5 Nh7 Ne3 Bg2 Bg4 Ne2 Re1 h1B Ra8 Bh3 Rb1 a1R Qb3 Ng3 Bd1 Rh4 Qb4 Nc7 Qg4 B3g2 Ra3 Na6 Qh3 Ra8 g8R Nb8 Bb2 Ra5 Bd4 Ke6 d7 Bd5 Nd6 Bg4 b7 Ke7 Bb6 Bhe4 Qf1 Bef3 Qa6 Bg2 Qa8 Ra2+ Kc3 Rf2 Kd3 Rf1 Kc2 Rg1 Kd2 Na6 Qc8 Nb8 Bb3 Bc4 Bc2 Bcd5 Bd1 f5 exf6+
K3b1bR/5P2/kBQ5/4p3/BnQbrbQ1/P2rP3/QN1N3b/4Nq1R b - - 0 1 legal: proof: c4 c5 d4 a5 g4 g5 b4 axb4 h4 d5 cxd5 f5 gxf5 g4 h5 h6 Bxh6 c4 Bc1 Qc7 h6 Qc5 dxc5 Nc6 Qd2 Nd4 Qxd4 Be6 Qd1 Bc8 Kd2 Kd7 Ke3 Kc7 Kd4 b5 f4 Kb7 f6 b3 f7 b4 f5 c3 d6 e5+ Kd5 c2 f6 g3 a3 b2 c6+ Ka7 d7 g2 d8N b3 c7 Bh3 Kc6 Be6 c8Q Bh3 h7 Bg7 f8Q Bf5 f7 Nf6 Nb7 Nd5 Nd6 Bh6 Nd2 b1B N6c4 b2 Qd6 Rd8 h8Q Be3 Qh2 Bd4 Ngf3 g1B Ne1 Nb4+ Kc7 Bh3 Qc6 Bd7 Qhg2 Rb8 Rh8 Be8 Qf2 Ra8 Bh3 Bh2 Bd7 Ba2 Qfg2 b1Q Nb2 Bd5 Qc4 Be4 Ba4 Bh7 Qcg4 Bg8 Qgc6 Rab8 Qa2 Rb5 Qcc4 Ka6 Qg2 Rd6 Qgc6+ Bb6+ Kb8 Rd3 Qcb3 Rc5 Ka8 Rc4 Qc3 Re4 Q3c4+ Ka5 Ndf3 Bf2 Be3 c1B Bc5 Bcf4 Nd2 Bd4 e3 Qc1 Qg4 Qd1 Nef3 Qe2 Rh1 Qf1 Ne1 Qf2 Q4d5 Qf1 Bb6+ Ka6 Qdc4#
5Q2/1b1N2nK/1R3Pr1/1n3R1n/P1Pq3B/3bB1qN/pB4QR/nk1B4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 f5 exf5 h5 gxh5 Bb7 Qd2 Ba6 Qd1 Bc8 axb5 a5 b3 a4 Qe2 a3 Qd1 Ra4 bxa4 e6 b6 Bd6 Qd3 Na6 Qe2 Bb8 Qd1 Ba7 bxa7 Nb8 Kd2 Ke7 Kd3 Kd6 Ke4 Kc5 a8R Kb4 f4 d5+ Ke5 g5 c4 d3 h4 d2 h6 g4 f6 a2 h7 d4 f7 d3 f8Q+ Ne7 Kf6 g3 Kg7 e5 h5 g2 h6 e4 f5 e3 Na3 Kc3 Qg4 d1N Bd2+ Kb2 Nh3 g1Q Rh2 e2 Qg2 e1N Be2 Nc3 Nc2 Nb5 Be3 d2 Ra5 d1B Nb4 Nd7 Na6 Bb7 Nb8 Nf6 Nd7 Bc2 Bd1 Qf2 Ra6 Bd3 Rb6 Nc2 Rc1 Na1 Rc2+ Kb1 Rd2 Qe1 Rf2 Nc8 Kg6 Nh5 Rf1 Ng7 Rf4 Rg8 h8B Qeh4 Kh7 Nh5 Bf6 Qg3 Bh4 Rg6 Bd2 Qe8 Kh8 Qe2 h7 Nd6 Be3 Ne8 Rf3 Neg7 Kg8 Qc2 h8B Ne8+ Kh7 Qb2 Bhd4 Qc3 f6 Neg7 Rf5 Qb2 Bh6 Qbf2 Bb2 Qd4 Be3
N2BR2Q/Rp3QBn/3P1P2/3Nr3/5R2/2rR1QbP/1n1b4/n1k2nKn b - - 0 1 legal: proof: c4 a5 g4 f5 gxf5 h5 f4 d5 cxd5 a4 b4 c6 e4 a3 e5 Ra7 b5 Qd7 b6 Ra5 e6 Ra6 f6 Qd6 f5 Ra8 Be2 Na6 Bf3 Qb8 Bg4 Qa7 bxa7 hxg4 Bxa3 Kd8 Bc1 Bd7 Qb3 Be8 Qd1 Bf7 exf7 Rb8 a8Q Kd7 Qa7 Ra8 Qb8 Rh7 Qc2 Rh6 Qd1 Rh8 Kf1 g5 d4 e5 a4 c5 h3 g3 a5 c4 d6 Kc6 d5+ Kc5 d7 Kb4 d8Q c3 d6 g4 Ne2 c2 Nf4 Kb3 Ng6 e4 Qe7 e3 Ne5 Bh6 f8B Nb4 a6 Nd3 f7 g2+ Kg1 e2 a7 e1B Bg7 Nf6 f8R Nb2 Kh2 g1N Nc4 g3+ Kg2 Ne2 Rc8 Re8 Rc5 Nh7 Qf7 Re5 Qh8 Rc8 a8R Bf4 Be3 Bd2 f6 Rc6 Qf1 c1N Rd5 Kc2 Nb6 Nb3 R1a7 Na1 Re8 Rc5 Rh2 Rc7 Qf2 Kc1 Rd3 Rc8 Na8 Rc6 Kf3 g2 Nc3 g1N+ Kg2 Nf3 Nd5 Ng3 Bb6 Rc3 Bd8 Nh1 Qe2 Bg3 Qe4 Nh4+ Kg1 Nf5 Rf2 Ne3 Rf4 Nf1 Qf3
8/2P1Q1KN/2kn4/Qp1b1NP1/BR6/2pnr2B/R4RP1/Rb2Bnrq b - - 0 1 legal: proof: e4 g5 h4 f5 hxg5 a6 exf5 Nh6 b4 Ng8 b5 axb5 c4 e5 cxb5 c6 d4 Ba3 dxe5 Bd6 b6 Bc7 bxc7 b5 Kd2 h5 Ke3 d5 Kd4 Kd7 f4 h4 a4 h3 f6 h2 a5 Rh7 f7 Ba6 f8R Nh6 f5 Bc8 e6+ Kd6 e7 Bb7 e8B Rh8 f6 Qc8 f7 Nd7 a6 Nc5 a7 Ng8 Nf3 Qe6 Bc4 Ne7 Nh4 Qe1 Nc3 Nc8 Qd2 Nd3 Bd7 Rh7 Rg1 h1N Bh3 Ng3 Bb3 Nf1 Nf5+ Kd7 Ba4 Nd6 Ne4 Re8 a8R c5+ Kc3 c4 Kd4 Re7 Qa5 c3 Bd2 Kc6 Nf6 Re3 Rb1 Qd1 Rb4 Rh6 Be1 Qh5 Bg4 Qh1 Nh7 Rf6 Bh3 Rfe6 Bf2 Re1 Bg3 R6e3 Bf2 Rc1 Be1 Ne5 Bh4 Kd7 Qb6 Nd2 Bc2 Ra1 Ra2 Bc6 Qa5 Ba8 Ba4 Rc1 Kc5 d4 Bf2 d3 Kd4 Bf3 Ng7+ Kc6 Bg3 Bd5 Bh4 Rc2 Rga1 Rc1 Bg3 Rg1 Be1 Nec4 Bc8 Nb2 Bh3 Be4 Ke5 Bd5+ Kf6 Nf1 Rg8 d2 f8Q d1B Qe7 Bc2 Rf8 Nd3 Kg6 Bd1 Rff2 Bc2 Nf5 Bb1 Kg7
2RN1bn1/4QrP1/Q1r3R1/qB1KnP2/1R1R4/1P1q4/k1ppNB1Q/2b5 b - - 0 1 legal: proof: e4 a5 b4 c5 bxa5 b5 h4 g5 c4 gxh4 d3 f5 exf5 Qc7 Nh3 Bb7 Ng1 Bd5 cxb5 Bb3 axb3 c4 Ne2 c3 Ng1 Qc4 dxc4 Bg7 Qd5 Bh6 Qd1 Bf8 f6 Kf7 Ke2 Ke6 Kf3 h5 Ke4 c2 f4 h3 g4 h4 c5 h2 f7 d6 g5 h3 a6 Bg7 f8Q Ra7 b6 Nd7 b7 Rh6 b8R Bb2 Nc3 d5+ Kd4 Rf6 c6 Kd6 c7 Ba3 Ke3 Kc5 g6 d4+ Ke4 d3 f5 Rc6 Nb5 Kb4 c8R Rac7 Qh6 e5 Kd5 e4 a7 e3 a8Q e2 g7 e1B Qe2 Bd2 Nd6+ Kc3 Qg5 Ne5 Qa6 Rf7 Nb7 Bf8 Ra4 Bf4 Ba3 Bc1 Bc5 Kb2 Nd8 Kb1 Qe7 Kb2 Nf3 Kb1 Rg1 h1Q Rc4 h2 Rg6 Qg2 Rb7 Qg3 Ng1 Qe1 Rbb8 Qa5 Rbb4 h1Q+ Re4 d2 Qh2 Qf3 Bb5 Qe2 Bf2 Qd3+ Red4 Ka2 Ne2
2bB2Q1/5rqN/1NbrR3/QN2pPr1/P1n3Nk/3r1B2/pR1P4/5B1K b - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 cxd5 f5 exf5 a4 gxh5 a3 b3 Na6 d6 e6 Bh3 Nc5 Nc3 Na4 Bf1 Qh4 Nb1 Qc4 bxa4 Qxa2 Ba6 c6 Bf1 Be7 Bb5 Bd8 Bf1 Bc7 dxc7 Kf7 Ne2 Ke7 Ng1 Ke8 f4 Ke7 Kf2 Kf6 Kg2 g5 h4 b5 h6 g4 h5 c5 h7 b4 h6 b3 Nc3 b2 Rb1 c4 Nb5 c3 Nf3 c2 Ng5 g3 Qh5 Ba6 c8B Ne7 Bb7 Nc8 Bf3 Rf8 h8N Nb6 h7 Rad8 Nhf7 Bc8 Nh6 Rf7 Kg1 g2 h8Q+ Rg7 Qf8+ Rf7 Qg8 Rd6 Rh2 Qa1 Ng4+ Ke7 Rh4 Nc4 Nh7 Rd3 Kh2 g1R Rh3 Rg3 Kh1 Rd6 Bb7 Rgd3 Re3 Qa2 Re4 Qb3 Re5 a2 Bf3 Qc3 Re2 Qg7 f6+ Kd7 Ra1 b1B Ba3 c1R Re1 Bc2 Rb1 Bd1 Rb2 Rcc3 Bc5 R3d5 Re5 Rcd3 Bb6 Bb3 Re3 Rg5 Bd8 Bc2 f5 Bb3 Qh2 Bd1 Qe5 Be2 B3g2 Bf3 Qc3 Bc6 Qa5 Re7 f7 e5 f8N+ Ke8 Rg3 Ra7 Bf3 Rf7 Bc7 Ke7 Nd7 Rh6+ Rh3 Rhd6 Nb6 Rgg6 Nh2 Rg2 Rh6 Rgg6 Nf8 Kf6 Ng4+ Kg5 Bd8+ Rgf6 Rg6+ Kh4 Rg5 Rh6 Nh7 Rh5 Rg6+ Rg5 Re6
1BnrR2K/RQp5/R1p1P2P/8/B1R5/1k6/pP1r3b/QNBnNq1q b - - 0 1 legal: proof: c4 e5 f4 b5 a4 Ba6 axb5 Bb7 c5 Bc8 c6 dxc6 fxe5 h5 e4 f5 exf5 a5 g4 Be7 gxh5 Ba6 bxa6 Bf8 Kf2 Kd7 Kf3 g5 Ke4 a4 d4 g4 h4 g3 h6 a3 h5 g2 a7 Bd6 e6+ Ke7 d5 Bg3 d6+ Kf6 d7 Qc8 d8Q+ Ne7 h7 Bf2 h6 Bd4 Nf3 g1Q Rh4 Bc5 Bb5 Qg8 Ne1 Qa6 Qc8 Nd5 Qb7 Qg1 Qa4 Rg8 h8R Rg2 Re8 Nd7 Qa5 Rc8 a8R N7b6 Ra7 Ne3 Ra2 Bd6 Kd4 Kg5 f6 Kf5 f7 Qh1 f8B Bh2 Bc5 Nd1 Qa4 Rb8 Rg4 Nc8 Rf4+ Kg6 Ke5 Rd2 Bf2 Qb6 Bg1 Qf2 Ra6 Qf1 Ba7 Nd6 Ra1 Rd8 Bb8 Nc8 Qd4 Kg5 Qg1+ Kh5 Kf6 a2 Kg7 R8d3 Rf3 Rd8 Rfa3 Kh4 Kh8 Kh5 Ng2 Kg6 Ne1+ Kf6 Ra7 Ke5 R3a6 Kd5 Nc3+ Kd6 Qg6 Kc5 Qb1 Rc2 Bd2 Nf2 Qd1 Kb4 Rc1 Rd5 Bg5 Re2 Rc2 Rd8 Qa1 Nd1 Bc1 Kb3 Nb1 Rf2 Rc4 Rfd2 Ba4+
8/Q1kpn1rP/2NN1RB1/1n4NK/1Np2b1P/1pbR4/1nrQP3/Q5B1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 Rh7 b4 Rh8 a4 b5 axb5 axb4 c4 c5 d4 Bd6 d5 Ba6 b6 Bb5 cxb5 Qc8 Bf4 Qc6 dxc6 Be7 Bc1 Bf8 Kf2 Kd8 Kg3 g5 Kg4 b3 h4 f6 e6 c4 h6 f5+ Kh5 g4 b7 g3 b6 g2 e7+ Ke8 c7 f4 c8Q+ Kf7 e8N Ke7 h7 f3 Nh3 g1B Ra6 f2 Na3 Bg7 Ng5 Ra7 Qd2 Bb2 Bh3 f1N Nc2 Nc6 b8N Be3 b7 Nd4 Rf6 Ra2 Nb4 Bf4 Nd6 Nb5 Bf5 Bc3 Bg6 Rc2 Rh3 Ne3 Qc5 Kd8 Qe5 Kc7 N8c6 Nd1 Rd3 Nb2 Qd4 Nh6 Qa7 Rg8 Qa1 Na4 Bb2 Nf5 Ba3 Rg7 Bb2 Bce5 Bd4 Ne7 Bf2 Bc3 Bg1 Nb2 Re3 Kb6 b8Q+ Kc5 Qba8 Kb6 Rd3+ Kc7 Q8a7+
NRB2n1Q/1Nq5/1pp1PPb1/bQ2b2P/k7/N1RR4/4BKp1/Rr1q4 b - - 0 1 legal: proof: d4 a5 g4 d5 b4 h5 gxh5 e5 bxa5 e4 c4 Qh4 cxd5 Qd8 e3 Ra6 Qe2 Re6 Qd1 Re5 dxe5 Nc6 Bd3 f5 Ba6 Nd4 exd4 f4 Be3 fxe3 Bb5+ Ke7 Bf1 Ke8 f4 Kd7 a4 g5 h4 e2 f5 b6 h6 g4 d6 Kc6 d7 g3 h7 g2 h5 Bb4+ Kf2 Bd6 d5+ Kc5 f6 Kb4 e6 c6 a6 Bh2 a7 Qf8 d8R Ne7 a8B Be5 d6 Ka5 d7 Bb7 Nh3 Qe8 Nf4 Qf8 Qd5+ Kb4 a5 Ba6 Rh3 Ng6 Na3 Qf7 Rc3 Bd3 a6 Ka4 a7 Nf8 Bb7 Qg7 a8N e1B+ Kg1 e3 Be2 Be4 Rb8 Bg6 d8R Qc7 Nd3 Rg8 h8Q Bd2 Rcc1 Ba5 Rc3 Rg7 Qc5 Rd7 Bc8 Rd4 Qd5 Rb4 Rd6 Bd4 Qf5 Rb1+ Qf1 Be5 Nc5+ Kb4 Nb7 Ka4 Bg4 e2 Rdd3 e1Q Be2 Qd1 Kf2 Qd2 Qc1 Qc2 Qb2 Qd1 Qb5+
r2QBr2/3q3p/pRB2p1k/3PNbP1/1Pb4N/5K2/RN5Q/qBb1N3 b - - 0 1 legal: proof: d4 b5 a4 d5 axb5 Kd7 c4 Nc6 cxd5 Nh6 e4 Nb4 d6 Ke6 d7 Ng8 d5+ Kf6 d6 Nd5 Qf3+ Ke5 Qd1 Ke6 exd5+ Kf6 f3 g5 Be3 g4 Kd2 g3 Bf2 gxf2 h4 Bb7 g4 Kg7 g5 Nf6 g6 Ne4+ Ke3 Ng5 hxg5 Ba6 Kd2 Bc8 Ke2 c5 b4 e5 b6 e4 b7 e3 b8N c4 f4 a6 Na3 c3 Rh6 c2 Nc4 c1Q Qd2 Qc7 d8N Ra7 d7 Qa5 Nb2 Qb5+ Kf3 e2 Nbc6 e1Q Ne6+ Kg8 d8Q Qbc5 g7 Q5c4 Ne5 Qc5 Bd3 f1B Ra2 Qd4 Bb1 Bd7 Qh2 Qdd2 Nc5 Bf5 Ncd3 Ra8 Rb6 Qh4 Ne1 f6 Nd7 Kf7 g8B+ Kg7 g6 Qc8 Be6 Qdc1 Ne5 Bc4 Bd7 Bc5 Bc6 Kh6 g7 Be3 g8B Qd7 Bf7 Rf8 Be8 Bd2 Kg2 Be3 Ngf3 Qh5 Nh4 Qg5+ Kf3 Bd2 Bc2 Qa1 Bb1 Bc1 fxg5+
n3BRqB/5RbP/n2Q4/4b1K1/2q1P3/N3RrB1/Q1P1R1bn/2q1krN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 b4 Kc4 h4 a5 e4+ d3 h6 f5 h5 g5+ Ke3 d5 h7 f4+ Kf3 a4 b6 a3 b7 d4 e6 a2 Kg4 f3 b5 f2 h6 Bg7 b6 Ne7 Bg2 f1N Bh3 d2 Rh2 d3 Bg2 Qd5 Ba3 Rf8 h8R Rf3 h7 Na6 Qc1 d1Q b8B d2 b7 Qe2 Rd8 d1Q Qb2 Qc1 Bh3 Qc5 Bg3 Nd5 b8Q Nb6 Rf2 Nh2+ Kh5 g4+ Kh4 Ra7 e7 Na8 e8R Raf7 Rf8 Qd4 Bad6 Qdd3 Bge5 g3 Bd7 g2 Be8 Bh3 Rd7 Qc3 Bg3 Kd4 Kh5 Ke3 Bde5 Qcc4 Na3 R7f4 Rc7 Kd2 Rcf7 Ke1 Qd6 Rf6 Rb1 a1B Qa2 R6f4 Bf6 Be5 Kg5 Qed3 Ne2 g1Q Rb3 Bg2 Rc3 Qh1 Ng1 Qe2 Nh3 Qhf1 Ng1 Qe6 Rb3 Q2c4 Re3+ Qfe2 Ra7 Qg8 Raf7 Rf5+ Kh4 Bh6 Bh8 R5f4+ Kh5 Bhg7 Kg5 Rf6 Nh3 R3f4 Ng1 Bh3 Rg2+ Rf2 Bf4 Rf1 Rf2 Bg2 Bg3 Rf3 Rxe2#
K2B2bq/Q3PB2/r1rR1QBk/1nnP2RQ/1N1Pb2q/6n1/4b1N1/1Q1r4 b - - 0 1 legal: proof: c4 b5 g4 e5 f4 g5 a4 f5 axb5 d5 cxd5 Be7 gxf5 g4 h4 Bg5 hxg5 exf4 Kf2 Kf8 e4 Kg7 b4 h5 g6 a5 f6+ Kh6 e5 c5 f7 c4 f8Q+ Kg5 g7 h4 b6 f3 Ke3 c3 Kd4 h3 Kc5 c2 e6 g3 b5 a4 b7 h2 b6 g2 Na3 f2 Nf3+ Kh6 Nh4 g1N Bd3 f1B Bg6 Ne2 Qf6 Nc6 b8Q Ncd4 b7 Ra6 Rg1 h1B Ng2 Nb5 Qa7 Ng3 b8Q Be2 Bb2 c1Q+ Nc2 a3 d4 a2 e7 Qf8 Bc3 Qg5 Ba5 Qh4 Bd8 Be6 Nb4 Bf7 Rc1 a1R Qbb6 Rb1 Kc6 Qe8+ Kb7 Be6 Qf3 Nf6 g8B Nd7 B8f7 Nc5+ Ka8 Rh7 Rc3 Qh8 Qf6 Rba1 Qb8 Rc6 Qb1 Raa6 Qbe5 Rg7 Ne1 Be4 Ng2 Nf1 Rg3 Rg8 Rg5 Ng3 Rf1 Rg7 Be8 Bg8 Bef7 Ra2 Qef5 Rd2 Qg4 Rd1 Rff5 Rh7 Re5 Rg7 Re6 Ra6 Rd6 Rc6 Bf5+ Rg6 Rd7 Nc3 Qe6 Rc7 Qea6 Re6 B5g6 Nb5 Qd6 Rf6 Qdf4 Rd6 Qf6 Ra6 Rd6 Rcc6 Qh5+
Qr1Nk2r/1Pn2Q1n/6R1/1bKBq2r/b1nRR1B1/4BNP1/4bB1P/1q6 b - - 0 1 legal: proof: c4 d5 d4 g5 a4 b5 axb5 h5 cxd5 e5 Ra2 exd4 Ra1 Bd6 g4 Bg3 gxh5 g4 Qd3 Bh4 Qd1 g3 Nd2 g2 Nb1 Bg3 fxg3 Bd7 Kf2 Bg4 Ke1 Bc8 Kf2 f5 e4 a5 b4 c5 b6 c4 d6 d3 Ke3 c3 Kd4 c2 h6 f4 b5 a4 h7 a3 e5 a2 b7 d2 d7+ Kf8 e6 f3 e7+ Kf7 e8B+ Ke7 b6 f2 Qf3 d1B Nd2 Na6 b8Q Nh6 b7 Be2 Nc4 Ng4 Ne5 Nc7 Nf7 Nf6 Be3 c1N Kc5 Bb5 Qa7 Rb8 Bc4 f1B Qa8 Be2 Bd5 Ba4 Rb1 a1R Rb6 Kf8 Rd6 Qe7 d8R Qe5 Bd7+ Ke7 Bf5 Bcd7 Bg4 Bdb5 Qf2 Rb1 Nf3 g1Q Rb6 Qd1 Re1 Qb3 Rd7+ Ke8 Nd8 Ra1 Rbd6 Qb1 Rg7 Ra2 Rg6 Rd2 Qf1 Rd4 Bf2 Rf4 Be3 Rf5 Bf2 Rh5 Rd7 Rg8 h8B Nh7 Bg7 Rf8 Bh6 Rh8 Bhe3 Nd3+ Kb6 Rg5 Nd4 Qd1 Bh1 Nc5 Bf4 N5e6 Bg1 Nc5 Bc6 Bf3 Re4 Qe1 Bfe3 Rh5 Qc4 Qf1 Bgf2 Be2 Nf3 Nd3 Qd5 Nb2 Kc5 Qe6 Qf5 Nc4 Qd5 Qg1 Qf5 Qb1 Rdd4+ Ke7 Bd5 Ke8 Qf6 Qe5 Qf7+
1N6/R1QnbP2/2RBr2r/Knb5/bN2QR1P/2B1bP2/r1R1q2b/2k4B b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Ba6 exf5 Bc8 a4 axb4 axb5 Ra6 Ne2 Ra3 Ng1 Ra8 h4 Kd7 d4 Kd6 Kd2 g5 f3 c5 h6 e5 f6 g4 f7 g3 b6 g2 h7 e4 b7 c4 Nc3 b3 Qe2 b2 Ra7 b1R Rh2 Be7 Na2 e3+ Kc3 Nd7 b8R Qe8 Nb4 Ngf6 Ba3 Re1 Rb5 Bb7 Rb6+ Bc6 Qc2 e2 Qe4 Qf8 Rba6 Ne8 Ra4 Nc7 R4a6 Rg8 h8B Qe8 Bg7 Rh8 Bf6 Nb6 Bg7 Ba4 Bf6 Kd7 d6 Rh6 Be5 Ke6 d7 Bc5 d8R Be7 Bd6+ Kf6 d5 Nd7 Rc6 Nb5+ Kb2 c3+ Ka2 c2 Bb2+ Nd4 Ka3 c1B Rb8 Be3 Bc3 Rc1 Rbb6 e1B Ne2 g1B Bg2 Bg3 Bh1 Re1 Rg2 B3h2 Rc4 Bd8 Rbc6 Qe5 Rg4 Be7 R4c5 Ne6 Nd4 Nc7 Rc4 Re2 Rg2 Re1 Rc2 Bgf2 Nd3 Nb5+ Kb4 Re2 Ka5 Re8 Rc1 Ra2 Nb4 Bfg1 Rc2 Bgf2 Ne6 Bc5 Nc7 Bfe3 Rd4 Qe6 Nca6 Qe5 Qd3 Qe4 Nb8 Kf5 Qe2 Qd3 Bc7 Qe4 d6 Kf4 Qd3 Beg1 Qc4 Ke3 Qd5 Qd3 Rf4 Qd2 Qd4+ Ke2 Qe4+ Kd1 Qe6 Bge3 Qe4 Nf6 d7 Qe2 d8Q+ Nd7 Rd2+ Kc1 Bd6 Bg5 Qc8 Ree6 Qc7 Be7 Rc2+
1R2b1NN/B2P2Q1/n1PK3n/q2b2b1/B6k/2b5/NRN1QP1Q/1r1bn1r1 b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 g5 a4 d5 axb5 f5 exf5 d4 h4 gxh4 c3 Qc7 cxd4 Qd6 d5 Qd8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 a5 g4 h5 f6 h3 d4+ Kh4 g5 a4 g6 h2 f7 e6 b6 a3 d6 a2 g7 Rh6 b7 Ra7 c6 Rh8 d7 Na6 b8Q Rb7 d5 Be7 f8Q Nh6 g8N Bg5 d6 Qa5+ Bb5 Rh7 d8N Rhg7 Bb2 Bd7 Na3 Be8 Rb1 a1B Bd4 Bc3 d7 Rb6 Kd6 e5 Ne2 e4 Qf7 e3 Nc1 e2 Na2 e1N Ba4 Rb4 Rf1 h1B Ba7 Bf3 Rb2 Bg4 Qd2 Bd1 Qe2 Rb5 Qf6 Rb6 Nf7 Rb5 Rd2 Rb1 Nc2 Rb3 Rd3 Ng2 Qef3 Be2 Qe5 Bgd2 Rc1 Bd1 Na1 Ne1 Rd5 Bf4 Nh8 Rg1 Rc2 Rb1 Ke6 Bg5 Qfe2 Kh3 Rb5 h4 Qd4 Rg3 Qg7 Rg1 Qd3+ Kg4 Rcb2 h3 Qe2+ Kh4 Nc2 h2 Qc7 h1B Rb8 Bg2 Qce5 Be4 Kd6 Bd5 Qh2#
2N1bnk1/1RN1n1b1/3qQq2/1q2Pq1P/1R2q3/1PK1RR2/4Q3/BBQ3rr b - - 0 1 legal: proof: c4 d5 cxd5 e5 Qa4+ b5 Qb3 b4 Qd1 b3 axb3 Bg4 Ra6 Bd7 Ra1 Bc8 f4 exf4 g4 h5 gxh5 a5 Bg2 a4 Bf1 a3 bxa3 Bd6 Qc2 Bc5 Qd1 Bf8 e4 g5 d4 c5 Kd2 f5 h4 Kf7 d6 g4 e5 g3 a4 f3 d7 g2 d5 c4 a5 f4 h6 f2 d6 f3 a6 Be7 h5 Ra7 h7 Qc7 d8R Bg5+ Kc3 Bd7 Nd2 Bf5 d7 Bb1 Bd3 f1Q Ne4 f2 Ne2 g1Q Nd4 Qh3 Ne6 f1Q Qe2 Bh6 Bb2 Qgc5 Ra4 Qhf5 Rh3 Ne7 Rf3 Q7d6 Rb4 Qb5 Ba1 Rg8 h8R Rg1 Nc7 Bg7 Rh7 Qff6 Re3 Q1f5 Re8 Rh1 d8Q Nd7 Bc2 Ra8 a7 Nf8 Qd7 Kg8 Rd8 Rc8 a8Q Rb8 Qac6 Ra8 Bb2 Ra1 Rb8 Rg1 Rb7 Rh1 Bd3 Bc2 Rh6 Rag1 Ba1 Bb1 Rg6 Bc2 Rgg3 Bb1 Kb2 Bc2 Rgf3 c3+ Ka3 Bb1 Qc5 c2 Kb2 Q5g5 Kc3 c1Q+ Bc2 Qgf5 Qcc6 Qcd1 Bd3 Qdd5 Nd6 Qde4 Bc2 Qdd5 Nc8 Qdd6 Bd3 Bc2 Qc5 Bd1 Bb1 Bc2 Kb2 Bd3 Qc1 Bc4 Kc3 Bf7 Qa3 Bg6 Qc1 Be8 Qe6+
2qn3k/B2P4/Q1Q5/KP1Qr3/1PBN1N1r/B4b1r/Rbr3Br/1n1q2R1 b - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 b5 e4 f5 exf5 d5 a4 Nd7 axb5 Nb8 c4 cxd4 cxd5 Ba6 Qe2 Bb7 Qd1 Bc8 Kd2 Kf7 f4 Kg7 g4 a5 g6 e5 g5 h5 d6 a4 d7 e4 Ne2 d3 Kc3 d2 Bg2 a3 Nd4 h4 Qf3 d1Q Ra2 e3 Rg1 h3 Qc6 e2 Be3 Rh4 f6+ Kh8 f7 e1R f5 h2 f6 Ne7 Kb4 h1R Nc3 R1h2 Nd5 Bb7 Nf4 Bg7 f8B Qc8 f7 Ra7 Qa6 Nd5+ Ka5 Nc3 Bc5 Bf6 b4 Ra8 Ba7 Bf3 Bc1 Re5 Bb2 Nb1 g7+ Kh7 g8B+ Kh8 f8Q Nc6+ Kb6 Nd8 g6 Rb8+ Ka5 Rb7 Qc5 Rc7 Qcd6 Rc2 Bc4 Bg7 Qdc6 R2h3 Ra1 a2 Ba3 Nc3 Rb1 a1R Rb2 Rac1 Ra2 Nb1 Bh1 Rch2 Bg2 Bf6 g7+ Kh7 Qe6 Rc2 Qec6 Re6 Nde2 Bb2 Nd4 Ree2 Ng6 Re5 g8Q+ Kh6 Qgd5 Kh7 Nf4 Kg7 Nf5+ Kh8 Nd4
b2qN1r1/1PbQ2P1/2rN2nk/1bPn1q2/1RR2QBB/K1B5/Q3b3/4rB2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 b5 e4 c5 exf5 b4 d4 cxd4 a3 Qb6 axb4 Qc7 b5 Qd8 Kd2 Kf7 c4 Kg7 Kc2 e5 Kb3 d5 g4 h5 f4 h4 g6 d3 g5 e4 b6 e3 c5 d4 a6 h3 a7 h2 Nd2 e2 Ngf3 e1R Ne4 d2 Ra4 d3 Ka3 Be7 f6+ Kf8 f7 Kg7 f5 Qe8 Nh4 Qd7 Bb2+ Bf6 Rb4 Rh5 f8Q+ Kh8 g7+ Kh7 g6+ Kh6 Bc3 Be5 f6 Bc7 f7 Nc6 Nd6 Ne5 Ne8 Nf6 Qd6 Ba6 g8B Rd8 a8Q Qf5 g7 Ng6 f8B Bb5 Be6 Nd5 Qf4+ Rg5 Qdg4 d1B Be7 d2 Rg1 h1B Bc8 Qf7 Qd7 Bde2 Rg4 d1Q Qa4 Qd4 Qb3 Qf5 Qa2 Nf6 Rc4 Ba8 b7 Qd1 Nd6 Rg8 Ne8 Nd5 Bd8 Qdc2 Be7 Qf8 Bef6 Qe7 Rb4 Qd8 Nf5+ Kh5 Nfd6 Kh6 Qf2 Re5 Bh4 Qf5 Rgc4 Re6 Qf4+ Qfg5 Qc6 Rf6 Bg4 Re6 Qf2 Qf5 Qd7 Rf6 Ne4 Rb6 N4d6 Rc6 Qf4+
1n1k1bBQ/bn1P3K/P3NNr1/Q1Q3R1/4b2b/3B1Rn1/Q1q3nP/3r3N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 h6 g4 Bg7 g6 Bf8 g7 Qd7 Kf2 Qd6 Ke1 Qd8 g5 Na6 g6 Rh7 Bb2 Rh8 Bf6 Nb8 Bg5 hxg5 Ke2 e5 Ke3 b5 Ke4 c5 a4 g4 d4 g3 d6 g2 a6 c4 d7+ Ke7 a5 b4 f6+ Kd6 Kf5 Kc7 d5 c3 f7 b3 a7 c2 a6 c1B Nd2 b2 Ne4 b1N Ra5 Bg5 Bd3 Bb7 Qh5 Qc8 Nf6 e4 Ne2 g1B Ng3 e3 Qe2 Rh4 Qa2 e2 Ra3 Bgc5 Rg1 e1N Nh1 Rd4 Rb3 Bh4 Rg5 Na3 d6+ Kc6 Rc3 Nb5 Qa5 Qc7 d8Q Ng2 d7 Kd6 Qc8 Ke7 Ra3 Bb6 Rc3 Qc4 Qc5+ Kd8 Rb3 Qc2 Ra3 Nc6 Rc3 Rc8 a8N Nb8 Ra3 Rc6 Nc7 Ba7 Rb3 Re6 Ra3 Re1 Rb3 Rd1 Ra3 Re4 Rc3 Bd6 f8Q+ Re8 Qf7 Bf8 Qfa2 Ne7+ Ke5 Be4 g8Q Qb3 g7 Bh7 Bb1 Bc2 Ng4 Qa4 Kf6 Be4 Rf3 Nf5 Kg6 Re6+ Kh7 Rg6 Bd3 Nbd6 Qh8 Ng3 g8B Nb7 Nf6 Qc2 Ne6#
r2nk1q1/Q1Q4R/1B1bn2q/KR1N2PQ/4B3/1P4nP/2rn1n1B/4qB1N b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 exf4 axb5 Ba3 Ra2 Bb4 Ra1 Bf8 Ra3 h5 Ra4 h4 Ra1 h3 gxh3 Qd6 Kf2 Qd7 Ke1 Qd8 Na3 g5 Nb1 g4 Bg2 g3 Bf1 Bg4 hxg4 Kd7 Ra4 Ke7 Ra1 Ke8 e4 c5 d4 a5 Kd2 f5 Kc3 a4 d6 g2 b6 f3 d5 a3 b7 f2 e5 a2 e6 c4 Kb4 f4 e7 f3 g5 c3 b3 c2 Ne2 g1N Bf4 c1N Nbc3 Nd7 b8Q Nc5 Qa7 Nh3 Ng3 Ne2 Kb5 Qc8 Ka5 Nh6 Be5 Ne6 d7+ Kf7 d8B Ke8 d6 Nf7 Bc7 Nfd8 Nd5 Rh4 Rc1 Rc4 Bb6 Rc6 Rc4 a1Q+ Ra4 Qb2 Rb4 Rc2 Rb5 Qc4 Bf4 Qh8 Be5 Qch4 Bf4 Qg8 d7+ Kf7 Be5 Qh6 Bd6 Bg7 Bb8 Be5 e8B+ Kf8 Bg6 Bd6 Be4 Kf7 Bg2 f1N B8c7 Nd2 Bf1 f2 Bb8 Nc3 Qh5+ Kf8 Rg1 Ne2 Nh1 Ng3 B8c7 Nf5 Rg4 Ng3 Rh4 Nhf4 h3 Nd3 Be2 f1Q Bb8 Qb1 Bf1 Qe1 B8c7 Nf7 Bb8 Nf2 d8Q+ Kg7 Qd7 Kf8 Qc7 Nfd8 Qc3 Be7 Bf4 Bd6 Qc7 Ne2 Bh2 Ng3 Qe2 Ke8 Rh5 Qhg6 Rh7 Qh6 Qh5+
2kB2q1/RRQ3q1/N5P1/2R1q1N1/6b1/2rqQ1P1/1KPr1b1B/1n1rQq1Q b - - 0 1 illegal: No possible last move, all moves rejected
5k1q/1B5P/rrQn2N1/BNrB1nNn/2q5/1r6/1bP1R2P/1r1QR1NK b - - 0 1 legal: proof: e4 c5 g4 b5 a4 f5 axb5 Bb7 exf5 Bc8 d4 cxd4 b3 h5 gxh5 a5 b6 a4 Ne2 a3 Ng1 Ba6 Bf4 Bb5 Bc1 Ba4 bxa4 Rh6 Bd3 Rh7 Bf1 Rh8 f4 g5 Kf2 d5 Kg2 e5 a5 d3 a6 d4 b7 d2 h6 a2 a7 e4 f6 d3 f5 g4 h7 e3 Nf3 g3 Kg1 g2 Nh4 e2 Bb2 e1R Bd4 Ne7 Bf2 Qc7 Nc3 Qc4 Bb6 Nd7 b8Q+ Nc8 Qg3 Bg7 f7+ Kf8 Qc7 Nd6 Qc6 Re5 Nb5 Rc5 Ba5 Bb2 Nf3 Nf6 Rb1 Rb8 a8B Rb6 Bb7 a1R Be2 Nh5 Bf1 Kg7 f8N Ra2 Ng6 Rb8 f6+ Kf7 Nh8+ Kf8 f7 Ra3 Rc1 Rb3 Rb1 Ra8 Be2 Raa6 Ng6+ Kg7 f8N Kf7 Qf1 d1N Ne6 Ne3 Re1 d2 Neg5+ Kg7 Bd3 d1R Re2 Nef5 Be4 Rc1 Bd5 Rb1 Ne7 Kf8 Qd1 Qf4 Kf2 Qg4 Rhe1 Qc4 Ng1 Rb4 N1h3 g1Q+ Kf3 Qe3+ Kg2 Rb3 Kh1 Qec3 Ng1 Qh8 Ng6+
kq2Bb1n/qb1Pn2Q/1N4B1/1RNn2P1/1P1Kn3/3NR2Q/2qn2Q1/4N1r1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 f4 f5 exf5 g5 b3 Bd7 f6 Na6 f5 Bc8 Bb2 Nb8 h4 a5 g4 Bh6 h5 Bg7 Be5 Bf8 Bf4 gxf4 g5 Nh6 Rh4 Rg8 Rh2 Rg6 hxg6 Ng8 Rh1 Bg7 Nf3 Qd7 Rh6 Na6 Rh1 Bb7 Rg1 Kd8 Bg2 Nh6 Ra4 Rc8 Ra2 Nb8 Ra1 Qd6 Qc1 Kd7 Qb2 Rh8 Qc1 Bc8 Rh1 Ng8 Ng1 Bf8 Qd1 Ke8 Bf1 Qd8 Kf2 Kd7 d4 e5 b4 h5 b6 c5 f7 a4 d6 Kc6 f6 Kb7 d5 e4 g7 h4 d7 a3 d6 a2 Nc3 f3 Ke3 h3 Nd5 h2 Bd3 c4 Kd4 c3 Qb1 c2 Nf4 e3 Bg6 c1N Nd3 f2 Nf3 f1N Nfe1 Ne7 g8B e2 Rg1 h1Q Rg3 Ka8 Re3 Ng3 B8h7 Qc7 d8N Nd5 Nb7 Qc2 Nbc5 Ne4 Qb3 Qh2 b7+ Ka7 Bg8 Qf4 Qb1 Rh1 B8h7 Qh2 Bh5 Rg1 B7g6 Na6 b8N Ka8 Qb2 Nac7 Nbd7 Ne7 Qb3 Ncd5 Nb6+ Ka7 d7 Bb7 Qb2 Qb8 Qc3 Bg7 f8Q Nb3+ Kc4 Bh6 Qf7 Nbd2+ Kd4 Bf8 Rc1 a1Q Qh7 Qa3 Be8 Qa5 f7 Qa6 Bg6 Qa3 Nf3 e1N Rd1 Ng2 Nfe1 Qa5 Ra1 Qa6 Ra5 Nh4 Rb5 Qaa4 Nc8+ Ka8 Qb2 Bh6 f8Q Qaa7 Qf5 Bf8 Qa2 Qb1 Qh3 Qc2 Bgf7 Nhg6 Qb2 Nh8 Bg6 Qc1 Qc2 Nf1 Qch2 Qc2 Q2g2 Nfd2 Nb6+
1Bq1N1r1/1P1k4/1rr2PQK/1rR2BQ1/b1NRQ3/3bn1N1/qb1N1P2/1q6 b - - 0 1 illegal: No possible last move
7b/3N2R1/3Q3P/r1nBP1N1/q1q2PKR/Q1q2rnR/3Q1Br1/qR3rk1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 f5 g4 Kf7 gxh5 Ke8 e4 fxe4 d3 e3 Ke2 Nd7 Ke1 e2 Kd2 Nb8 Nh3 e5 Kc3 e4 Ng1 e3 Kb3 Bf5 Kc2 Be4 dxe4 Rh6 Kd3 Rh7 Kc2 Rh8 Kd3 Ke7 b4 Kd6 h4 Ke5 h6 Kf4 h5 e1Q d6 a5 h7 g5 e5 c5 d7 a4 b6 g4 b5 g3 b7 g2 b6 a3 Bd2 a2 Nf3 g1R Qc1 Rg6 Qa3 Qh4 d8Q Nh6 Bg2 Nf5 Nc3 Nd7 b8Q Bg7 b7 Ng3 Rb1 a1Q Na4 Rf8 h8R Ra5 Qd6 Kg4 b8R e2 Ke3 c4 h6 c3 Nb6 c2 Rh7 c1Q Ng5 Bh8 Rg7 Qc4 Bd5 Nc5 Nd7 Rf7 R1b3 Qec1 Rd3 Qc1c3 Rhb1 Rf4 R8b4 Rf8 Be1 Rf5 Nf3 Kh3 Ng5+ Kh2 Ra4 Kg1 Rab4 Qa6 Rf4 Qac4 Kf3 Qh1+ Kg4 Qhe4 Rf3 Qec2 Re3 Q2a4 Rfe4 Nh5 Rh3 Ng3 Q8b8 Rf8 Qbb2 Rf3 Qd2 Rgf6 Qf8 Re3 Qd6 Qaa2 Kh4 Qaa1 Rg4 Rf4 f3 Rfe4 f4 Rf3 Bf2+ Kg2 Qg6 e1R Qd6 Rf1 Be1+ Kg1 Ne6 Rd3 Kg5 Rde3 Rgh4 Ref3 Kg4 Re2 Ng5 Rg2 Bf2+
nB2q2B/1Q1q1RB1/2rR1P2/6b1/1nkN2nN/K2BqQPq/5bnP/6Q1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 h5 axb5 d5 cxd5 f4 g4 Bf5 exf5 hxg4 Bc4 g5 Qe2 a5 Qd1 g3 Ba2 g2 Bc4 g4 Qe2 g3 Qd1 Ra6 Bd3 Rg6 Bf1 Rg7 Ne2 g1B Nd4 g2 Ne2 Rg3 fxg3 Bc5 Ra3 Be3 Ra1 Bg1 b4 Kd7 d4 Kd6 Kd2 c5 Kc3 e5 Kb3 c4+ Kb2 a4 f6 f3 b6 e4 b7 c3+ Ka3 e3 b5 c2 b6 f2 Nd2 Nd7 Nf3 Qe8 Nh4 Bh6 Bd2 c1N Qe1 Qd8 b8B+ Qc7 b7 Na2 Qb1 Bg5 Qf5 Rh7 Qf3 Nb6 Rc1 Nb4 Rc3 Kd7 d6 Ke6 d7 Na8 d8B Qd7 Rc7 Nh6 Be7 Ng4 d5+ Ke5 Nd4 e2 d6 e1N Bc4 f1Q Bd3 Bf2 Bf8 g1Q Bg7 Qh3 Bh8 Ng2 Bc1 Qe8 d7 Re7 d8Q Re6 Bd2 Rc6 Qc8 Kd6 Rf7+ Kc5 Qe6 Qd1 Qe1 Qde2 Qg1 Q2e3 Be5 Qd7 b8Q Qe8 Qb7 Qd7 Kb2 a3+ Kb3 a2 Bb8 a1Q Bc1 Qb1+ Ka3 Qee8 Bd2 Qbe1 Bdf4 Q1e4 Bfd6+ Kd5 Bf8 Ne5 Bfg7 Ng4 Qa1 Kc5 Re1 Qf4 Re6 Qe3 Rd6 Q3e6 Bf5 Kc4 Qg1 Qe3+ Bd3+
2r2r1Q/3N2r1/2qNPbk1/1bQ5/P1BR2rR/Q6b/1RP2b1q/Q2K2Bn b - - 0 1 legal: proof: d4 a5 h4 e5 g4 g5 b4 c5 f4 f5 dxc5 Nc6 fxe5 Nd4 gxf5 axb4 Ba3 g4 Bb2 Ne6 Bc1 Ng5 hxg5 Qf6 Rh3 Qe7 Rh1 Qd8 a4 Kf7 e4 d5 f6 h5 e6+ Kg6 f7 b5 e5 g3 c6 g2 e7 d4 e8Q b3 c7 b2 Qc6+ Nf6 Qd7 b4 Rh2 d3 Nf3 g1B Qd4 h4 Be3 d2+ Ke2 b3 Qd7 h3 Nc3 b1R Bb6 b2 Qc6 Qe8 Ra2 Bg7 f8Q Bf2 Qcc5 Qc6 Nb5 Nh5 Nd6 Bf6 e6 Bd7 Qe7 Rhf8 c8R Ra1 Rd8 b1R Rb2 Rc8 Qc1 Ng3+ Kd1 Nh1 Bc4 Ra3 Ba7 Re3 Qa3 Re4 Bc5 Rg4 Ne5+ Kh5 g6 Ra1 Rg2 h2 g7 Be8 Nd7 Kg6 Rg3 Rb1 Rh3 Ra1 Ke2 d1B+ Kd2 Bf3 Rh4 Bg2 Kd1 Bh3 Bb6 Rb1 Bd4 Ra1 Qc5 Ra3 Qa1 Rag3 g8Q+ Bg7 Bf1 Be3 Qc4 Qc5 Nb5 Kf5 Na7 Rg5 Nf6 R3g4 Ne4 Bf6 Nc6 Ng3 Ne5 h1Q Qh8 Qh2 Bd3 Qb6 Qea3 Rg7 Qcc5 Nh1 Bc4 Bb5 Rd5 Qa6 Nd7+ Kg6 Nd6 Bg1 Bf2 Qc6 Rd4 Qf4 Bg3 Bf2 Bh2 Qe5 Bg1 Qf4 Nf5 Qh2 Nd6
r2N4/2KP1kP1/2n1b2R/5b2/bq5N/1BR1r1Bb/P1r4q/rR2RNQQ b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 c4 axb4 cxd5 g4 f4 Bd7 h4 Bh6 e5 Bg5 hxg5 Bc8 Kf2 Nd7 Ke1 Ndf6 exf6 Kf7 Bb2 Kf8 Bc1 Ke8 Kf2 e5 Ke3 h5 Ke4 b5 d4 c5 g6 g3 g7 g2 d6 h4 Kd5 e4 Kc6 e3 d7+ Kf7 d5 b3 d6 h3 Nf3 g1Q Nh4 b2 Nd2 e2 Rb1 Qf8 Kc7 e1R Bc4+ Re6 Qg4 b4 Nf1 h2 Bb3 c4 Qh3 c3 d8N+ Ke8 Nb7 c2 Bd2 Ne7 Be1 Kf7 Bg3 Nc6 Qg2 Qf2 Qg1 Bd7 Re1 Be8 Rb1 c1R d7 Rc2 Ra1 Q8c5 Re1 Qc4 Rb1 Re3 Re1 Kg8 Rb1 Bf7 Re1 Be6 f7+ Kh7 f8Q b1B Qf6 Kg8 Qa1 Kf7 f6 Qc5 f5 Rhb8 Bc4 b3 Bd5 b2 Bc4 Rd2 Bb3 Bc2 Qd1 b1B Qf3 Kg8 Qe4 Qb4 f7+ Kh7 f8R Bd1 Ba4 Rc2 Rf6 Kg8 Rh6 Kf7 f6 Bdg4 Bb3 Bh3 Nc5 Rb5 Nb7 Rbc5 Qeg2 Rc1 Qd5 Bbf5 Qf3 Ra1 Qd1 Rc2 Qf3 Bc4 Qd1 Ke6 f7+ Ke7 f8R Bce6 Rc8 Kf7 Qg2 Qe2 Rg1 h1B Qh2 B1g2 Qh1 Bf3 Qd4 Bfd5 Rd1 Rd3 Rb1 Qh2 Re8 Bc4 Nd2 Bb5 Rge1 Bec4 Qdg1 Rf3 R8e3 Ba4 Nf1 Bce6 Rc3 Re3 Nd8+
1b3r1r/1r3NB1/2k5/1N2p1q1/P3bB1b/QK3RR1/Bn1P1BQP/3Nn1q1 b - - 0 1 legal: proof: e4 d5 b4 a5 g4 axb4 c4 f5 cxd5 h5 exf5 c6 dxc6 Rh7 gxh5 Rh8 f4 b5 a4 e5 h6 g5 f6 b3 h7 b2 f7+ Ke7 c7 Kd6 f5 g4 f6 g3 Qb3 b4 Kd1 g2 Kc2 Qd7 Nf3 g1B Nc3 b1R Bb2 Qg4 Nd4 Nc6 Nd1 Na5 Qa3 Bb7 c8Q Nh6 Bc4 Be7 f8B Nf7 Ba2 Qg5 Qch3 Nc4 Bh6 Raf8 Nb5+ Kc6 Kb3 Ba7 Rf1 Bb8 Rf3 Bd8 Qg2 Be7 Kc2 b3+ Kc3 Bd8 Kb4 Ba8 Bd4 b2 Ba7 Qg3 Bf4 Ng5 f7 Bf6 Rb3+ Nf3 Bf2 Bh4 Rd3 Qg5 Kb3 Rhg8 h8N Bb7 Qg1 Ne1 Rf3 Ba8 Ng6 Rh8 Qg2 Kd7 Rg3 Be4 Rf3 Kc6 Rg3 Rd8 f8B Rc8 Bg7 Rcf8 Ne3 Rc1 Nd1 b1Q+ Qb2 Rc2 Rf3 Qc1 Qa3 Nb2 Rb1 Rc5 Rg3 Rd5 Ra1 Rd7 Rf3 Rh7 Nh8 Rb7 Nf7 Qc5 Rc1 Rh5 Rcc3 Rhh8 Rcd3 Qb6 Rg3 Qc5 Rdf3 Qc1 Bb6 Qc5 Ba7 Qg1 Bf2
N1qQ2RK/1r1Q3Q/r1n5/1k1p3n/1bPB2P1/1Pq2N2/1qb1Q1B1/Nr5R b - - 0 1 legal: proof: h4 f5 e4 g5 exf5 gxh4 Ke2 c5 Na3 b5 Nb1 b4 Ke1 b3 axb3 c4 Nc3 Nc6 Nb1 c3 bxc3 Nb8 Ke2 d5 Kf3 Kd7 Kg4 Kc6 Kg5 h5 Kg6 e5 f4 a5 g4 a4 d3 h3 c4 h2 c5 a3 c4 h4 f6 a2 f5 e4 f7 h3 f6 e3 Nf3 e2 Na3 e1Q Bb2 Bb7 Nc2 Qe2 Bg2 Ra6 Bd4 Bc8 Rc1 Bd6 Kg7 a1Q f8Q Bf5 f7 Be4 Qe7 Nf6 f8Q Qc8 Qfd8 Qc3 Na1 Qeb2 Qe2 Rh6 Rcf1 Nh5+ Kg8 Rb6 Qh7 Rb7 Kh8 Re6 Ng5 Rg6 Rf8 Bf3 Rg8 Re6 Qee4 Bd1 Qe2 Be7 Nf3 Bc2 Qe8+ Kc7 c6 Kd6 c7 Nc6 Qef7 Rf6 c5+ Kd7 Rb1 h1Q Rd1 Qh2 Rh1 Qf4 Qf8 h2 Qfg7 Qb8 c8N Kc7 Nb6 Qc8 Na8+ Kd7 Bg1 Qfc4 Bd4 Rh6 Rd1 h1R Qg5 Nb4 c6+ Kd6 c7 Kc6 Qf5 Kb5 Qd7+ Nc6 Re1 Bb4 Rd1 Qd8 c8Q Qe8 Qcc7 Qc8 Qcd8 Re6 Rd2 Rb1 Rd1 Re7 Rf1 Ra7 Rh1 Ra6 Qdf5 Rea7 Qfd7 Rb7 dxc4+
N1k1B2B/q2RQ2Q/2Nr2r1/2pR2N1/3P4/1Pb2PK1/1qr1qBnN/2b3n1 b - - 0 1 legal: proof: f4 b5 g4 g5 fxg5 f5 c4 d5 cxd5 f4 a4 f3 axb5 Bf5 Kf2 Be4 Ke3 f2 h4 Bf3 exf3 Bh6 h5 Bg7 h6 Bxh6 Ke2 Bf8 d6 Kd7 d3 c5 b6 h5 b7 a5 b3 e5 g6 h4 g5 e4 g7 a4 g6 h3 Bb2 e3 Na3 h2 Nc4 a3 Nh3 a2 Qe1 Nh6 g8Q Qe7 g7 Ng4 Rd1 a1Q Ng5 Nc6 b8N+ Kc8 Qh7 Ra6 g8N Bh6 Nf6 Qa7 Rd2 Rd8 d7+ Kc7 Bd4 Qb2 Nb6 Ra2 Rg1 h1R Na8+ Kb7 Rg2 Rg1 Rh2 Rg2 Rh5 Ra6 Be5 Rh2 Bh3 Nd4+ Kf1 Rg2 Nc6 Ne2 Bg3 Rg8 d8B+ Kc8 Bdc7 Ng1 Bce5 Rh2 Bd4 Rg6 Bc3 Rh1 Kg2 e2 Bh4 f1Q+ Kg3 Rh2 Bd4 Qd7 Bc3 Ne3 Ng4 Qa7 Bh8 Rf2 Rd1 Ng2 Nh2+ Re6 Bf5 Rb6 Bg6 Rd6 Be8 Ra6 Ne6 Bc1 Rd5 Rb6 Ng5 Rg6 Qc3 e1B Qe5 Qfe2 Qee7 Bb4 d4 Bc3 Re1 Qe3 Rd7 Rc2 Re2 Qd2 Re5 Qe2 Red5 Ra6 Kg4 Rb6 Bf2 Rd6 Kg3 Rg6 Nd8 Rbd6 Nc6
2n3b1/2b2N1Q/Rp1N4/N1nBBP1K/2BBqQ2/1q4rP/2rP2bk/1rR5 b - - 0 1 legal: proof: e4 d5 b4 a5 g4 axb4 c4 f5 cxd5 h5 exf5 c6 dxc6 Rh7 gxh5 Rh8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 a4 g5 c7 b3 h6 b2 f3 b6 h3 Nd7 f6 Bb7 c8N Nc5 h7 Qd3 a5 Qb3 Nd6 Rc8 Na3 b1B f7 Ba2 Kh5 Kf4 a6 Kg3 f4 e5 a7 e4 a8B g4 f5 e3 Nf3 e2 Nac4 e1Q Bb2 Qe4 Na5 Ne7 Bd4 Rg8 h8B Bh6 f8Q Bf4 Ne5 Bc6 Rg1+ Kh2 Bb5 g3 Bc4 g2 Qf3 Rg3 Rgc1 g1R Nef7 Rc7 Qd8 Nc8 Qg8 Be5 Qh7 Bb7 Rc2 Rb1 Rc1 Bd5 Qf4 Rc6 Nb5 Bc7 Bde5 Qe1 Nbd6 Bg2 Bd4 Qe4 Bhe5 Na4 Bd3 Rc2 Bd5 Nc5 B3c4 Qbe3 Bb7 Qg1 Bd3 Bc4 Nc6 Qf2 Ra6 Rb4 Ng5 Bg8 Bc4 Rb1 Na5 Qfe3 Bbd5 Qb3 Ngf7
1n5Q/1Q4BN/P1pPK3/1r4NR/3bb1r1/1n1B4/3qPRqr/1N1kB1qN b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 gxh5 d5 b4 axb4 c4 f6 exf6 Ra7 cxd5 Ra8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kc4 a4 b5 d4 g5 h4 b3 d6 b4 h6 g4 f7 b2 h5 c6 d5 b3 h7 g3 d7 g2 a5 Nf6 a6 Qc7+ d6 Kb4 d8N Qb6 h6 Nfd7+ Ke6 Qd4 Nh3 g1Q Bg2 Qd2 Be4 Qg2 Nf2 Bg7 f8N Bd4 Rh5 Rg8 h8Q Rg4 h7 Nc5+ Kf7 Bd7 Bd3 Bf5 Nde6 Be4 Nh1 Ra7+ Nd7 Rb7 Ng5 Rb6 Nf8 Rb5 Na3 Kc3 Qe1 Na4 Ke6 b1R Qf1 b2 Qf7 Kb3 Qb7 Kc3 Qhg7 Kb3 h8B Kc3 Nfh7 Nc5+ Kf7 Nb3 Ke6 Qe1 Bf4 Qd2 Bg3 Rc1 Qf6 b1Q Bg7 Rf1 Qf8 Rf2 Qh8 Qbg1 Nb1+ Kb2 Ra4 Kc1 Rc4+ Kd1 Ra4 Rf3 Be1 Rh3 Ra1 Rh2 Ra5 Rb4 Rf5 Rb5 Rf2
2N1r2q/3bPRn1/2N1nQB1/1b1N1q1Q/PNQ1r3/1nK1RB2/p1P5/2kr4 b - - 0 1 illegal: No proof kernel
2KR2q1/P3NQ2/QQbP1P1n/3R1Nb1/q3k2n/N3p3/Qr5b/1nr1B2B b - - 0 1 illegal: No possible last move
r1R1Bk2/P1n3q1/B1Np4/P3PRQK/2r1nb2/B2b2N1/1RQBn3/r1q5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 cxd4 b4 e5 fxe5 Bc5 bxa5 Bf8 Kf2 f5 Kg3 b5 a4 g5 e4 b4 c4 g4 h4 d6 c5 d3 h6 d2 a6 b3 a5 b2 h5 Qg5 e6 Nf6 a7 Qe3+ Kh4 g3 e7 g2 c6 f4 c7 f3 h7 f2 h6 Qe2 Rh2 Ng8 Nf3 g1R Kh5 Qb5+ Ne5 Be6 Qc2 d1N Bd2 Na6 Nc3 b1Q Ne2 Qc1 Ng3 Bf5 Nc6 Nc3 c8R+ Kf7 Rb1 Ne2 Rb2 Nc7 Rh4 Bg7 e8B+ Kf8 Rf4 Be5 Rf3 Bf4 Bf7+ Ne8 Rc3 Qe5 Rc5 Qg7 Rd5 Nc3 Bc4 f1Q Ba6 Ne2 Rdb5 Qfe1 Re5 Ne7 Reb5 Rg8 h8Q Nd5 h7 Ndc3 Rc5 Be6 Rf5 Bc4 Nh1 Bd3 Ng3 Qd4 Qf6 Rg4 Qg5 Qg7 Nd8 Nc7 h8B Qe5 Bf6 Qe8 e5 Ne4 Nc6 Qf2 Bb4 Qg2 Bd8 Qd2 Bf6 Ra1 Ba3 Qc1 Bd8 Nb5 Bb6 Nc7 Be3 Qh3+ Kg6 Qh8 Bd2 Qg7+ Kh5 N4c3 Qd8 Bg5 Bb5 Rc4 Ba6 Bf4 Qg5 Ne4 Bxe8+
1b1Rr1n1/PN2RQ1n/q1Qp2P1/rk1r1P1b/3Q4/B1q1Qb2/1BB2N2/5K2 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 c5 hxg5 b5 d4 Ra7 dxc5 Ra8 b4 axb4 cxb5 Bg7 Na3 Bh6 Nb1 Bf8 g4 h5 f4 e5 a4 b3 f6 b2 f5 h4 a5 h3 f7+ Ke7 c6 e4 a6 h2 b6 e3 b7 e2 c7 Rh4 g6 Qe8 a7 Nc6 b8Q Bg7 g5 Nd4 Nh3 Kd6 f8B+ Kc6 Nc3 b1R Bb2 Bb7 Ne4 Kb5 c8Q Qe6 Nhf2 Qa6 Nc5 Be5 g7 Ne6 g6 Ng5 Ra2 Bg3 Qe5 Bf3 Qe3 Ra1 Nb7 Bb8 Bfa3 d6 Bg2 Bh5 Be4 Nh7 Bc2 Rd4 Qcc3 Nh6 g8Q Rd5 Qf7 Ng8 Qcd4 Nhf6 Qdc1 Nh7 Rg1 h1B Rg4 Ne7 Re4 Ng8 Re8 Be4 Rd8 Bef3 Kd2 e1Q+ Kd3 Qf1+ Kd2 Qc4 Ke1 Qc3+ Kf1 Nhf6 Bb4 Nh7 Ra4 Ngf6 B4a3 Ng8 Rc4 Ra2 Rc7 Ra1 Re7 Ra2 Bc5 Ra5 Bca3 Bc7 Rdd7 Re8 Rd8 Bb8 Qcd2 Qb4 Q2c3 Qb3 Qc8 Qc3 Qc6+
n1n2bB1/p2P1r1N/QRrNk3/1q2BbB1/2P1q1q1/3R1n1B/2PQ4/KQ6 b - - 0 1 legal: proof: h4 f5 a4 d5 e4 c5 exf5 g5 b3 gxh4 Ra3 b5 axb5 c4 bxc4 d4 Rd3 Qd7 Rxd4 Qc7 Rd7 Qd8 f4 Kf7 d4 h5 Kd2 h3 Kc3 h4 Kb2 h2 g4 h3 d5 Nc6 d6 Nh6 b6 Rb8 g5 Bb7 f6 Bg7 f5 Bf8 Nc3 Rh7 Ne4 Ng4 Nf3 Bc8 b7 Nge5 Qd2 Qb6+ Ka1 Qb5 Bb2 Ra8 b8Q Rh6 Rd8 Nd7 Be5 Nb6 Qb7 Rb8 Qa6 Na8 Rg1 h1Q g6+ Kg8 g7 Kf7 Rg3 h2 Rg6 Rb7 Rd7 Qg2 g8B+ Ke8 Nfg5 h1Q Nh7 Qg4 Qa4 Qhh4 Bh3 e6 Qa6 Ne7 Rc7 Kd8 f7 Bd7 f6 Nc8 Rc6 Rc7 Rb6 Rc6 Bf4 e5 Bg5 Bf5 d7 Rh5 Nd6 e4 Rg7 e3 Rg6 e2 Rh6 Bg7 f8B e1N Rg6 Bh6 Bg7 Nf3 f7+ Kc7 B7f6 Bf8 Be5 Rh6 Rg7 Rf6 Rg6 Qe4 Rh6 Qhg4 Rg6 Be7 f8Q Rf7 Qh6 Bf8 Qh4 Nd4 Qhe1 Nf3 Rf6 Kd8 Qec1 Ke7 Qb1 Bg6 Rf5+ Ke6 Rf4 Qef5 Rd4 Qfe4 Rd5 Bf5 Rd3
K7/1rbBk1RP/2P1NN1n/n1PnQ3/3b2Rn/1B2p1q1/2n1r3/1Q2B1RB b - - 0 1 legal: proof: d4 b5 g4 d5 f4 h5 a4 g5 axb5 c5 dxc5 d4 e4 Be6 fxg5 Na6 g6 Nb8 g5 Bd5 Qg4 hxg4 exd5 Rh7 Ra6 Rh4 Ra1 Rh8 Kf2 f5 h4 e5 c4 a5 b4 g3+ Kf3 a4 d6 d3 d7+ Ke7 g7 f4 Ke4 d2 Kd5 d1N c6 f3 b6 a3 h5 a2 b7 g2 b5 e4 h6 e3 h7 f2 g6 Nh6 g8B Nb2 g7 Ng4 Ne2 g1B Rh4 Qc8 d8R Nh6 Bg2 f1N Bd2 Ra5 Be6 Ra8 g8B Nf5 Be1 Nh6 Nd4 Nd3 Nc3 Bg7 Bh1 Qc7 Ne4 Bf2 Nf6 Qg3 Bd7 Nh2 Rg4 Nf3 Ne6 Nf4+ Kc5 Ra7 Kb6 Nh4 Rc8 Bg1 Rc7 Bh2 Rd1 a1N c5 Nb3 Rc1 Na6 b8Q Nb4 Ra1 Ra8 Kb7 Ra2 b6 Na5+ Ka8 Re2 b7 Nc2 Bf7 Rg8 Rd1 Bh8 Rc1 Rg5 Rd1 Bg7 Qh8 Rg6 b8Q Nd5 Qb1 Rg5 Qhb8 Re5 Rb7 Re4 Qe5 Rb4 Rb8 Rb7 Rg8 Bh8 R8g7 Qf3 Qg5 Bc7 Qe5 Qg3 Bc3 Na1 Rg1 Nc2 Be1 Rd2 Ne4 Nf4 N6g5+ Ne6 Qeb2 Bb8 Rg6 Nf4 Bb3 Bc7 Ne6 Re2 Rg8 Bc3 Nf6 B3e5 Qd4 Nd5 Qe4 Bc3 Qe5 Bd4 R8g7+
2RB1nR1/p2r3B/6q1/3n2R1/B1Qb1Pb1/3PQbNb/bP3K1N/Rkr5 b - - 0 1 illegal: No possible last move
r2Rn3/R1b4P/2bp4/2Q1N3/1NB2r1Q/2R1rQ1q/KP2bRPn/b1k1B3 b - - 0 1 legal: proof: e4 f5 exf5 b5 f4 c5 d4 cxd4 a4 g5 fxg5 h6 gxh6 Ba6 axb5 Bc8 Kd2 Kf7 h4 Kf6 c4 Ke5 Kc2 Ke4 Kb3 a5 h5 e5 c5 d3 h7 a4+ Ka2 a3 h6 d2 f6 Ke3 b6 e4 f7 Bb7 c6 Bd6 f8Q Nf6 c7 Ne8 c8R Bc6 b7 Qh4 Bc4 Bc7 Qg4 Qh3 Nc3 d6 Qh4 Nd7 b8Q Rg8 h8R Ndf6 h7 Rg4 Nf3 Rf4 Qb5 Ng4 Rf1 Nh2 Qbf5 Bd8 Rf2 Bc7 Bd5 Kd3 Bc4+ Kc2 Qc5 e3 Ne5 e2 Nd5 d1B Bd2 e1R Rd8 Ree4 Be1+ Be2 Rg8 Re3 Rg3 Rfe4 Qf3 Rg4 Rd1 Rf4 Rd4 Kc1 Nb4 Ra5 Rg7 Ra4 Rd3 Ra8 Kb3 a2 Rc3+ Kd1 Re7 a1B Rg7 Rb8 Ka2 Ra8+ Ra3 Kc1 Rgd7 Bb6 Rda7 Bc7 Rc3+
8/1B3P1P/1KN1B1Q1/2P3bR/1Qrqpn1Q/NR1BrQ1r/1bbk1r2/5n2 b - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 f6 h6 g4 Rh7 g5 Na6 f5 Rh8 fxg7 Nb8 g6 Nf6 Bd2 Ng8 Bg5 hxg5 Kd2 e5 Ke3 Ke7 c4 Kf6 b4 a5 h4 d5 b6 g4 b7 a4 b5 d4+ Kd3 g3 h5 Kg5 b6 Kf4 f6 a3 c6 a2 h6 g2 c5 Ne7 Kc4 Ke3 Kb5 d3 g8B d2 c7 Ra3 g7 Nd5 Bf7 Nd7 b8Q Nf4 g8Q Be7 b7 Nb6 Rh5 Nc4 Bd3 Bf5 c8B Qd4 Ne2 g1R Bfe6 Rg4 f7 Bg5 Qg6 Rg2 Qa8 Rf2 Qda4 d1R b8Q Nd2 Bb7 Nf1 Kb6 Rc1 h7 Rc4 Qb4 Re8 Qd8 Rac3 Na3 Kd2 Re1 a1B Rb1 Re7 Rb3 Bb2 Ng3 Be4 Nf5 Re8 Ne7 Bf5 Be2 Bc2 Nc6 Re7 Qba4 Re3 Bd3 Rd7 Qdf6 e4 Qad8 Rd6 Qff5 Rd5 Qh3 Rf5 Qdf6 Rff3 Qh4 Rh3 Qb5 Ne2 Qa4 Rf2 Qf3 Nf4 Qb4+
b2b4/1r2PRp1/2PR1N2/BR3n2/1r3Pn1/r1bB3K/k1R3Q1/1N2rqNQ b - - 0 1 illegal: No possible last move, all moves rejected
1n4q1/3Q2Nk/1r1rq1Q1/3B1Ppr/BQ4P1/2QrR3/bP4R1/2R1nKbN b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 d3 a6 bxa6 h5 g4 h4 Bf4 Nh6 Bd6 Ng8 Bg3 hxg3 f4 Kf7 h4 g5 d4 Kg7 a7 c5 h5 e5 d6 e4 f6+ Kh7 d5 c4 h6 c3 f7 c2 d7 c1R d6 e3 f5 g2 Nc3 e2 Rh3 Bg7 f8Q Na6 Re3 Qe8 d8Q Bb7 d7 Rb1 Qb4 Be4 Na4 Rb8 a8B Bd4 Qdb6 Nf6 d8R Bd5 Nc5 Nh5 Nh3 g1R Ne6 Rg3 Nf2 Qg8 Ng7 Nf4 Nh1 Ba2 Bd5 Ng2+ Kf2 e1Q+ Kg1 Qd2 Bb5 Qe2 Ba4 Rc1 Rc8 Rc6 Rc1 Rd6 R8c2 Rf3 Qc6 Ne1 Qe8 Qc4 Rg2 Rbb6 Qd3 Rh3 Kf1 Nb8 Qd7 Qb3 Qdc3 Rh5 Re8 Bg1 Re3 Qe6 Qf6 Rc8 Qff7 Rc3 Qg6+ Kg8 Qb7 Rd3 h7+ Kf8 h8Q+ Qg8 Qhh7 Qe6 Qhh6 Kg8 Qd7 Qc4 Qf6 Qc8 Qhg6 Qd8 Qge8+ Kh7 Qfc3 Qc8 Qef7 Qg8 Qg6+
3N3B/B3B2Q/P1n4b/1p1KR3/q1Pb1R1r/1b4R1/Bn1N1QP1/q2b1rk1 b - - 0 1 legal: proof: d4 c5 dxc5 a6 b4 Nc6 b5 axb5 Be3 Nb8 Bf4 Ra7 Bc1 Ra8 e4 g5 h4 f5 exf5 b6 cxb6 Nh6 hxg5 Ng8 Kd2 Kf7 Ke3 e5 Ke4 h5 f4 h4 a4 h3 f6 Kg6 f7 h2 b7 Nc6 b8B Na5 Kd5 Kf5 g6 e4 g7 e3 Ba7 e2 Bb2 Kg4 f5 Kg3 f6 e1B Qd4 Nc4 a5 Bf2 a6 Rh4 Nh3 Qa5 Ng5 Qa4 Nd2 d6 Qe4 Bd4 Re1 Kf2 Ne6 Rb8 Ba1 Nb2 Bc4 Rb7 Rhg1 h1Q Qh7 Bd7 Nd8 Be6+ Kc6 d5 Re5 Rb8 Ba2 Ne7+ Kd6 Ra8 g8R Bh6 f8Q Nc6 f7 Rc8 Rb1 Qe1 Rg3 Kg1 Qe8 Rc7 f8B Rf7 Be7 Rf1 Qef7 Bc5+ Kc7 d4 Rc1 Nd3 Rf5 Bb6+ Kd6 Bb3 Rf2 Qd1 c4 Qe1 Bc3 Nb2 Kd5 Bc5 Qf3 Bb6 Qe2 Bc5 Rf4 d3 Nb1 d2 Bh8 Bd4 Qf2+ Kh1 Rcc3 Qc1 Rcf3 d1B Nd2 Qa1 Re3 Kh2 Re5 Kh1 Qe2 Kg1 Qf2+
3Q1nNq/1b2rqP1/k2PB1r1/pnR1RQ2/2Q1Q3/3K1P1b/Nb4b1/B4B2 b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 g5 a4 d5 axb5 f5 exf5 d4 h4 gxh4 c3 Qc7 cxd4 Qd6 d5 Qd8 Ke2 Kd7 g4 Kc7 d4 Kb7 d6 e5 f6 h5 f7 a5 c6+ Kb6 d5 e4 c7 e3 g5 h3 f3 h2 d7 h4 g6 h3 g7 Qf6 d8Q Kb7 b6 Ba3 f8Q Nd7 d6 Ra7 Nc3 Nh6 Qb3 Qf7 Ne4 Ka6 b7 Bb2 b8Q Nf5 Kd3 e2 Qa8 e1Q Ne2 Qh4 N2c3 Rh6 Nf6 Nd4 Qc4+ Nb5 Na2 Bb7 c8B Rg6 Ng8 Qh8 Rg1 h1B Rg5 h2 Rc5 Bg2 Rb1 Ba3 Bb2 h1B Ba1 Bh3 Re1 Bb2 Re6 B1g2 Ree5 Qe8 Qff6 Nf8 Qf5 Qf7 Be6 Bd5 Qab8 Re7 Qe8 Bb7 Qbd8 Rd7 Qee7 Rc7 Qeh4 Re7 Qhe4
2B1BNr1/2bQN2q/3BqR1b/4r1Q1/QK5R/2P1Q1p1/5P1P/2qr1kbn b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 b5 bxa5 b4 g4 hxg4 Ne2 c5 Nbc3 Ba6 Bh3 Nc6 Na4 Na7 Nac3 Nb5 Nb1 Nc3 Bf1 Bb5 cxb5 c4 Ng1 Ne4 Qe2 c3 Qf3 c2 Qd1 Nc3 dxc3 Rc8 Ba3 Rb8 Bc1 Ra8 Kd2 Kf7 a4 Kf6 b6 Kg5 a6 Kh4 a7 g5 f6 d5 a5 e5 f7 b3 a6 g3 b7 d4 b8Q g4 Ba3 c1Q+ Kd3 g2 Kc4 b2 Nh3 e4 Bd6 d3 Ng5 e3 Kb4 e2 Na3 e1B Qb5 d2 Nc2 Bg7 f8Q Qd7 Qe7 Qc8 Rg1 Qe6 Ne3 Bh6 Nh7+ Kh3 Nd5 Re8 a8Q Nf6 a7 Nh5 Ra4 Rhg8 Nf8 Ng3 Qa5 Bf4 Ba6 Nh1 Bc8 Bg3 Qe2 d1R Qe3 Bd2 Qd7 Re7 Re1 g1B Qac6 Kg2 a8B Be5 Qc4 g3 Bc6 b1Q+ Qb3 Re8 Ne7+ Qe4+ Qc4 Bf4 Qg5 Be5 Re2 Kf1 Ra6 Qd3 Qa2 Qh7 Qa4 Be1 Rd2 Bf4 Rd4 Bd2 Qf3 Be5 Rh4 Bdf4 Qe3 Bg7 Ra5 Bh6 Rf5 Be5 Rf6 Bf4 Bc5 Bc7 Bd6 Qef7 Nd5 Re5 Ne7 Qa2 Be4 Qaf7 Bg6 Qe6 Be8
5rR1/4pr2/1Rr2QK1/2nPQ2R/R1B2rQN/2PP2n1/1rn2kN1/bq4B1 b - - 0 1 legal: proof: b4 b5 e4 c5 g4 g5 f3 d5 exd5 h5 gxh5 cxb4 a4 g4 axb5 g3 Bd3 Na6 Bf1 Bg4 fxg4 Nb8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kd4 h4 f5 b6 a5 h6 f4 h5 a4 h7 b3 h6 a3 b7 f3 Qe2 g2 Rh5 a2 Kg6 b2 g5 f2 Nc3 b1R Nd1 Ra4 Ne3 Na6 b8R Nc5 Rb6 Nf6 Qg4+ Nfe4 Bc4 f1R d3 Bg7 Ba3 Re8 h8Q Rb2 h7 Rf7 Bb4 Be5 Qf6 Ref8 h8Q Qb8 Be1 Ra6 Bg3 Ra4 Bh2 Qb7 Nh3 g1R Nf4 Rc1 Neg2 Ng3 Nh4 Ke3 Qhg7 Bd4 Qe5+ Kf2 Nfg2 Ra6 Qh6 Rf1 Qhh8 Rf4 Qhf6 Rf7 Kh6 Rf8 g6 Bc3 g7 Rf7 Rb4 Rc6 g8R Qb6 Rb1 a1N Ra4 Qb3 Kg6 Qa2 Re1 Qb1 Re4 Ra2 Rd4 Bb2 c3 Nc2 Ra6 Ba1 Rb6 Rb2 Ba2 Re1 Ra4 Re3 Bb3 Ref3 Bc4 Rf8 Qfd6 R4f7 Qdf6 Rf4 Bg1+
1B2n3/P1n1RK2/r4R2/P1NrpN2/rN3P1k/3b2Rn/2QBQ3/nn3qR1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 d5 cxd5 a4 g3 a3 bxa3 Qd7 a4 Qd6 a5 Qd8 f4 h5 f6 e6 f5 Ba3 Be2 Bd6 Bg4 Bf4 gxf4 hxg4 Kf2 Kf7 Ke3 c5 Ke4 b5 Ke5 g5 h4 b4 a4 c4 d4 c3 h5 g3 h6 c2 a6 g4 h7 g2 d6 g3 a7 b3 d5 b2 a5 Bb7 d7 Na6 d6 Nh6 Ra3 Qe8 d8R Nc7 d7 Qf8 Ne2 g1N Re8 g2 d8Q Rg8 h8B Rg6 Qc8 Qg7 Ng3 Be4 Qe2 Ng8 Nc3 b1N Na2 Nh3 Bd2 c1N Rg1 Nb3 Nb4 Na1 Re3 Bd3 Rf3 Nd5 Qc2 Rd8 Re3 Nc7 Re7+ Kf8 Rf3 Qh7 f7 Nf6 Re3 Rd4 Rf3 Rc4 Kd6 Nfe8+ Kd7 Rc5 Be5 Rd5+ Bd6 Kg7 f8N+ Kh6 f6 e5 f7 Qg8 Nf5+ Kh5 Ne6 Rf6 f8R Qg7 Nfd4 Kh4 Nc5 Qg3 Rff7 Qe1 Rg3 Qf1 Rf8 Rh6 Rf6 Rg6 Ree6 Rh6 Ke7 Rg6 Kf7 Rh6 Rh1 g1R Re7 Rg2 Rg1 Rf2 Be3 Rf3 Bd2 Re3 Nde6 Re4 Ng7 Rg6 Na2 Ra4 Nb4 Na8 Bb8 Nac7 Rf5 Rgd6 Rf6 Ra6 Nf5+
5rn1/K1b1N1pB/P6k/2QP1bR1/rb1R1q2/b4R2/BN4BP/R1Q2b1q b - - 0 1 legal: proof: f4 e5 fxe5 d5 b4 a5 bxa5 f5 g4 d4 Ba3 f4 Be7 h6 Bg5 hxg5 c3 Nc6 cxd4 Nce7 d5 Nf5 gxf5 Rh3 Nf3 Rh4 Ng1 Rh8 Kf2 Kf7 e4 b5 a4 c5 d4 b4 f6 Kg6 d6 b3 f7 c4 e6 g4 d7 b2 a6 c3 e5 c2 e7 c1B e8Q f3 a7 Rh4 a5 Qg5 d8R Rb8 a8B Rh6 e6 Bd7 a6 Rb7 e7 Kh7 Nh3 Rg6 Bc4 Qf5 Ba2 Rb8 Nc3 b1Q Nd5 Rf6 Rg1 Rc8 Nhf4 Qh5 Nd3 Rd6 Nb2 Bd2 Qc1 Bf5 Qec6 Qh6 e8B Qf4 Q6c5 Kh6 Ne7 Bb4 Bb5 Re6 Bd3 Re3 Bde4 Ra3 Rg2 Ra4 Bc2 Be6 Bh7 Bf5 Rd5 Be4 Rg5 Bf5 Be4 Ra8 d5 Ba3 Rg1 Rb8 Rd1 g3+ Kf1 g2+ Kf2 Re8 Rd4 Bb4 Q1c3 Qh1 Qc1 Qg3+ Ke3 g1B+ Kd3 f2+ Kc4 Qf4 Kb5 f1B+ Kb6 Bf2 Ka7 Bg3 Bg2 Ba3 Nc6 Bd6 Ne7 Rf8 Rg4 Be1 Rg3 Bc7 Rg5 Rb8 f8R Beb4 Rf7 Rf8 Rg3 B5d3 Rf3 Be4 Rf5 Bc2 Rg5 Bb1 Nc8 Bf5 Ne7
b1n1B1Qb/NPk5/2n1q3/3n1r1B/1nn1R2R/2P1pP1B/R3K3/qQ1N3R b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 c5 d4 g4 dxc5 g3 f3 Nf6 Be3 Ng8 h4 a5 h5 Kf7 Bf2 gxf2+ Kd2 Ke8 g4 Ra6 g5 Rg6 hxg6 Qc7 Kd3 Qb6 Kd2 Qd8 b4 d5 c3 Kd7 b6 e5 f6 h5 b5 d4 f7 h4 g7 d3 b7 e4 g6 h3 b6 a4 Bg2 f1N+ Ke1 a3 Ra2 h2 Nh3 d2+ Ke2 Rh5 Nf2 Qe7 Bh3+ Qe6 c6+ Kd6 c7 Ne3 Qc2 Nc4 Nd1 Nc6 b8R Bb7 c8B Ba8 b7 Rf5 Bd7 Kc7 Be8 Nge7 g8B Bg7 f8R Bh8 g7 Nc8 Qb2 e3 Rf6 N4b6 Bgf7 Nd5 g8Q N6a7 Rg1 h1Q Rh6 Nc6 Rf1 Qg1 Rh4 Qh1 Bh5 Qg1 Ra1 a2 Na3 Qh1 Qb1 Qg1 Nf2 d1N Re4 Nb2 Nd1 Nc4 Nb5+ Kb6 Na7+ Kc7 Rf2 Qh1 Qb2 Qg1 Rc1 a1N Qb1 Nc2 Rh2 Bf6 Rh1 N2b4 Rc2 Bh8 Ra2 N8b6 Rd8 Nc8 Rd6 Nf6 Rdd4 Nfd5 Nb2 Qc1 Nd1 Qa3 Rh4 Qa5 Rde4 Qa6 Rb2 Qa1 Ra2
r3n2K/2Qr3b/1Bq1NB2/3R1QN1/kn3r1N/3n1P2/rpNBPRP1/q7 b - - 0 1 illegal: No proof kernel forced: bxLB
R3BBb1/B1Q2n2/1N4K1/B3r2N/1qqP1r2/1P1p2R1/2Pr3Q/1r1q1bNk b - - 0 1 legal: proof: g4 b5 a4 h5 gxh5 c5 axb5 c4 e3 c3 Ke2 cxd2 Na3 e5 Nb1 d5 Kf3 d4 Kg2 d3 f4 e4 Kg3 Bd6 Kf2 Be5 fxe5 Nc6 Nh3 Ke7 Ng1 Nd4 exd4 Ke8 Kg3 Kd7 Kf4 Ke6 h4 Kd5 h6 a5 h5 f5 b6 g5+ Ke3 g4 Kf4 a4 b3 g3 b7 g2 b8B a3 e6 e3 e7 e2 Kg5 Ke4 h7 e1R h6 f4 Kg6 a2 e8N f3 Ba7 f2 Be2 f1B Na3 Qd5 Nc4 Be6 Nb6 Qc4 Ng7 Rf8 Bh5 Rf4 Qg4 d1Q Rh3 Qd2 Rf3 Qdb4 Rg3 Re2 Qh4 Rd2 Qd8 Bd5 Qc7 Be6 Rb1 a1R Rb2 Ra5 Ra2 Re5 Bb2 Bd5 Bc3 Be6 Be2 Bd5 Nh5 Be6 Bf3+ Ke3 Ra5 Kf2 Bc6 Bd5 Be8 Be6 Ne2 g1Q Ra4 Qh1 Ng1 Qf3 Ra6 Qd1 Ra4 Nf6 Ra5 Ng4 Ra3 Rhf8 h8B Bg8 h7 Nh6 Bg7 R8f5 h8Q Nf7 Ra1 Re1 Bf8 Rfe5 Rh3 Kg2 Rg3+ Kh1 Ra6 Qa4 Ba5 Qcb4 Bb8 Qab5 Ra8 Q5c4 Ba7 Qe2 Qg7 Rb1 Qh6 Qd1 Qh8 Rd5 Qhe5 Rb5 Qe2 Re5 Qh2+
Qr4q1/K1RNbq2/2Q4b/4rB1P/Pn2b1PR/1Q6/2B2pkb/2RNQ2q b - - 0 1 legal: proof: e4 a5 d4 g5 b4 h5 bxa5 d5 f4 h4 exd5 Rh7 d6 Nc6 c4 Bg7 c5 Rh8 g3 Ne5 c6 Nd7 cxd7+ Kf8 d5 Bh6 fxg5 Kg7 g4 Kg6 Bf4 Bf8 Bg3 hxg3 Kd2 b5 Kd3 e5 h4 c5 a4 f5 a6 f4 a7 b4 Kc4 b3 Kb5 e4 Nf3 e3 Qe1 e2 Rh2 g2 Nc3 g1B Rh3 b2 Nd1 c4 Rc1 b1Q+ Kc6 Qe7 d8Q c3 d7 c2 d6 Nf6 Qb6 Qf7 d8R Qba2 d7 Rh5 Qb3 Bh2 Kb6 Bb7 Rc8 Be7 d8Q Be4 Qd7 Rb8+ Ka6 Nd5 a8Q Nb4+ Ka7 Qg8 Rc7 Qf7 Nd2 f3 Nc4 f2 Nb6 Qg8 Qdd5 Qf7 Nd7 Qg8 Qbc3 Qc4 Qdc6+ Qce6 Qb3 Qf6 Qd2 e1Q Bd3 Qh1 Qe1 Qfe6 Qcd5 Qef7 Qdc6+ Kh7 g6+ Kh6 Nf6 Rc5 g7 Re5 h5 Kg5 Nd7 Kf4 Rh4 Kg3 Bf1+ Bf3 Bd3 Kg2 Bg6 Be4 Bf5 Qh7 g8B Qhg6 Bh7 Qgg8 Ra1 c1B Rb1 Bh6 Rc1 Bf3 Bc2 Be4 Bf5
3R1Rbb/1R4b1/bB1Q2B1/K3p3/RN1P1N2/NP1P4/r1q2q1n/qn1Q3k b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 e4 f5 f4 d5 fxg5 f4 g6 d4 c3 Bf5 cxd4 Bc8 g5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 g7 Kf7 g6+ Kf6 b6 Kg5 f6 h5 f7 c5 b7 f3 Ra2 Kg4 Ne2 h4 Ng3 h3 Rh2 a4 Ne2 c4 Nec3 Kg3 Ra3 f2+ Ke2 Nf6 g8N Nc6 b8Q+ Ne5 g7 Ng4 Bg2 Qa5 Qb4 Ba6 Ra2 Nf3 Nd5 e6 Nf4 c3+ Nd3 c2 Ne7 Rh6 g8R Bg7 Ng6 Qc7 Rb8 a3 Nf4 e5 f8R Bh8 b3 Rh5 Rb2 a2 Qc5 a1Q Rbd8 Rh7 Rh1 h2 Qd6 Qc6 Rg1 h1B Ra2 Kh2 Ba3 Rc7 Bc5 c1B Nd5 Rc8 Bb6 Qc4 Bf1 Rc5 Rg3 Ra5 Rh3+ Kg1 Rh7 Ngh2 Rb7 Qc2 Bg2+ f1Q+ Ke3 Ne1 Be4 Nef3 Bf5 Bg2 Bg6 Bh3 Ke4 Be6 Ke3 Bg8 Ra3 Qc4 Ra2 Kh1 Ke4 Rc5 Ra4 Qcc3 Ke3 Qcb2 Na3 Rc2 Ne7 Qc3 Nc6 Ra2 Ke4 Qc2 Ke3 Qg1+ Ke4 Bh7 Kd5 Qe1 Ncb4 Qf1 Nf4 Bg8+ Ne6 Qe1 d3 Bh6 Rff7 B6g7 Rff8 Bh7 Nf4 Nd2 Rdd7 Nb1 Rdd8 Nc3+ Kc5 Bg8 Ba7 Nb1+ Kb6 Qf1 Ka5 Qe1 Bb6 Qf1 Qg4 Qff2 Qd1+
1Nnr1q2/1QnBq1nQ/1Q3NQ1/1P1R1Pp1/5b2/bB2k1P1/B1n5/2q2R1K b - - 0 1 legal: proof: e4 b5 d4 a5 a4 g5 axb5 d5 Bf4 c5 Be5 f6 dxc5 fxe5 h4 d4 h5 Be6 Qg4 Bb3 Qd1 Bd5 exd5 Ra7 Ra3 Ra6 Ra1 Rg6 hxg6 Qb6 Kd2 Qc7 Ke1 Qd8 f4 Kd7 Kf2 h5 b4 a4 c4 a3 c6+ Kd6 b6 e4 g3 e5 Kg2 e3 b5 Kc5 c7 e2 c8B e1B d6 a2 d7 e4 g7 d3 b7 Kd4 c5 h4 f5 d2 c6 e3 c7 e2 Nf3+ Ke3 Nc3 Na6 b8Q Nf6 g8B Nh5 Ne5 Ng7 Nc6 Ba3 Qb7 Qf8 d8Q h3+ Kh2 Bf2 Nb8 e1Q Qh5 d1Q Qh7 Qc1 Ne4 Qeb4 Qg6 Qbe7 Bd7 Be1 c8Q Bd2 Bd3 Nc7 Bb3 Rg8 Rb1 a1N Rd1 Nc2 Kh1 h2 Bdc4 Rh8 Nf6 Rg8 Kg2 h1N Ba2 Rh8 Bcb3 Nf2 Qh7 Ne4 Kh1 Nd6 Qa6 Nh5 Qcb7 Ng7 Qe8 Nc8 Qg6 Qff7 Qac6 Rd8 Ra1 Qff8 Qcb6+ Ke2 Rf1 Bf4 Rb1 Qce3 Rbd1 Qc1 Rd4 Ke3 Rd5+
Q1rR1qk1/1R1q1Bn1/Rbn1q2P/1pP5/2QN4/3n1BP1/N1K1B1b1/1R2q3 b - - 0 1 legal: proof: b4 c5 d4 b5 dxc5 a5 bxa5 h5 g3 e5 Bb2 g5 Bd4 exd4 Qc1 g4 Qd1 h4 gxh4 g3 h5 g2 Qd2 Ra6 Qc1 Rg6 Qd1 Rg3 fxg3 Rh7 Qd3 Rh6 Qd1 Rh8 Kd2 f5 a4 Kf7 h4 d5 e4 f4 c4 f3 c6 d3 e5 d4 c5 f2 c7 Ba6 c8R Qe7 h6 Qd8 h7 Bg7 e6+ Kf8 e7+ Kf7 h5 Nh6 Ne2 g1Q Nbc3 Be5 Qb3+ Qd5 Qc4 Nf5 h6 Bc7 Na2 Nc6 Rb8 Qe6 Rb7 Rc8 h8R Ng7 Rd8 Bb6 e8B+ Kg8 Kc1 d2+ Kc2 d1N Bf7+ Kh7 Rb1 Nb2 Rh4 Qh1 Rf4 Qf3 Rf6 d3+ Kc1 d2+ Kc2 Qe7 Nd4 Qe6 Be2 f1Q Rf8 Qe5 Bd5 Na7 Nb3 Rc6 Re7 Rc8 Rd8 Bb7 a6 Bc7 a5 Qe1 Rfd6 Qf8 Bf7 Bg2 Rf6 Nc6 a7 Nb8 a8B Qe3 Rfd6 Qe6 Baf3 Kh8 Rb6 Nc6 a6 Kh7 a7 Kh8 Bg6 Kg8 Ra6 Bb6 a8Q Qf7 Rb7 Qe6 Rc1 d1Q+ Kb1 Qd6 Nd4 Qd7 Kc2 Nd3 Rb1 Nb2 Be8 Nd3 Bf7+
5Q2/QNK2RN1/q2N1P2/2b2pR1/P6B/1B4qQ/2qnQrrP/2rrnk2 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 axb4 g4 f5 gxh5 d5 cxd5 Bd7 e5 Bc8 f3 Bd7 Qe2 Ba4 Qe3 Bc2 Qf2 Be4 Qe2 e6 Qd1 Qf6 exf6 e5 Ba6 Bd3 Bc4 e4 Ba6 e3 Bc4 Be4 fxe4 Rh7 Bf1 Rh8 Ke2 Kf7 Kf3 b5 Kf4 c5 Ke5 g5 d4 e2 h6 Kg6 a3 Kh5 d6 Kh4 d5 e1R h7 c4 d7 b3 d8N b4 d6 c3 d7 b2 Qd3 b3 Bf4 g4 Qc4 c2 Ne2 c1R Nbc3 b1Q Qa6 b2 Nb7 g3 d8Q g2 Rg1 Kh3 Ng3 Red1 Bg5 Qc2 Nb5 b1Q N5d6 Qb6 Nh5 Nh6 Qa7 Rg8 h8Q Na6 Ng7 Nc5 Bc4 Qa6 Bh4 Nb3 a4 Nd2 Bb3 Rc8 Rb1 Ng4+ Ke6 Rc7 e5 Ne3 Qc8 Rc4 Kd7 Rf4 e6 Rf2 Qc3 Be7 Kc7 Bf8 Qh5 Be7 Qe2 Bf8 Re1 g1Q e7 Qg3 e8Q Ng2 Rg1 Ne1 Qf7 Qf3 Rg5 Qg3 Rb2 Be7 Qf8 Kg2 Kc8 Bd8 Kd7 Bb6 Qcd3 Bc5 Kc7 Qb1 Rc2 Qa2 Rc4 Qc2 Re4 Kg1 Re7 Kg2 Rf7 Kg1 Qde3 Kg2 Q2f3+ Kf1 Qee2+ Kg1 Qg4 Qg2 Ne6 Rg6 Qh3 Rg7 Rh5 Rg8 Qe4 Kf1 Qe5 Rg3 Ng7 Rg4 Rg5 Rg3 Qg4 Qf3 Qee7 Rgg2 Qh3 Qg3 Qe2+
R1n1q2n/q7/1N1p1nQK/2kN2PB/3b3B/1r1R1P1b/1P3qBQ/N2q1B2 b - - 0 1 legal: proof: f4 g5 fxg5 f5 g6 c5 d4 cxd4 g7 a5 g4 b5 h4 b4 h5 b3 g5 f4 axb3 f3 exf3 Ra6 b4 Rh6 b5 Rg6 hxg6 Bb7 Bh3 Ba6 Bf1 Bc8 Ke2 h5 c4 e5 b6 Ke7 c5 a4 b7 e4 c6 Kd6 c7 e3 Nh3 a3 Qb3 h4 Qc2 a2 Kd3 e2 Ke4 e1Q+ Kf5 d3 Be3 d2 Bf2 d1Q Bg2 Nc6 b8Q Na7 Nd2 Qde8 Nf4 h3 Nd5 h2 Nb3 Nf6 g8B Bg7 Bh4 Qf2 Bf7 Rh7 Re1 h1N Re3 Rh8 Rd3 Ng3+ Kf4 Ngh5+ Kf5 Rh6 Qb1 Bh8 g7 Nf4 Bh5 Ng6 g8B Rh7 Be6 Re7 Bg8 Re3 Be6 Bg7 Bf1 Nh8 Bg2 Nf7 Kg6 Kc6 Beh3 d6 Qb4 Bd7 Qf4 Nc8 Qh2 Kb5 Bf1 Kc4 Bhg2 Bh3 Nd4 Kc5 Nc2 Ne4 Kh7 Bd4 Kg6 Nh8+ Kh6 Na7 c8N Nf6 Ncb6 Nc8 Rd2 Rb3 Rd3 Qdd2 Qe1 Qd1 Qe4 Ne7 Qg6 Nc8 Rb1 a1Q Rc1 Qa6 Ra1 Qb7 Ra8 Qa7 Na1
4kqb1/1QbQ1b2/KP2N3/1P1n1B2/3Q1rp1/1q1RrBq1/PRQN4/2B1q3 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 b5 c4 Bb7 cxb5 Ba6 b6 Bc8 d4 c5 b4 c4 b5 Na6 Qa4 Nc5 Qb4 axb4 dxc5 Ba6 Nc3 Bb7 Nb1 Bc8 Kd2 d5 h4 e5 f4 g5 h6 b3 Kc3 d4+ Kb4 d3 h5 c3 f6 c2 h7 e4 f5 e3 f7+ Ke7 c6 e2 h6 e1Q+ Nd2 b2 c7 b1B f6+ Kd6 Be2 g4 Nh3 Be7 f8Q Ra7 f7 Qg3 Nf4 Nf6 Ne6 Rg8 h8Q Ra3 Qfg7 Qf8 h7 Bd8 Bf3 Ke7 Rd1 Rb3+ Ka5 Nd5 Qb2 Rg6 Qhe5 Rf6 h8Q Rf4 Qh7 Bb7 c8B Bc7 Qed4 Bc6 Ne4 d2 Ka6 Re3 Qbc3 Be8 Qc6 Rf5 Qb7 Rf6 Nd8 Rf4 Bf5 Bc6 Ne6 Be8 Rh1 d1Q Rh2 Qd3 Nd2 Qb3 Rf2 Qg7 f8Q+ Kd7 Rg2 Bf7 Qd6+ Ke8 Qg6 Qf8 Re2 Ree4 Re3 Re5 Rd3 Re3 Ba3 c1Q Qh7 Qc5 Bc1 Qcb4 Qh2 Bc2 Rb1 Bd1 Rb2 Be2 Rc3 Bc4 Rd3 Bg8 Nb1 Q4c3 Qc2 Qce1 Nd2 Nc3 Nd8 Bcf7 Ne6 Nd5 Qd7+
3N1R2/K2B1B2/1Pqp4/4q1BQ/k4q2/1rR1P1nq/bQR1r1nP/3Nn1B1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 cxd4 a4 b5 axb5 e5 f4 a4 fxe5 Bd6 Nh3 Bc7 Ng1 Ba5 bxa5 Ra6 Qd2 Ra7 Qd1 Ra8 Kd2 f5 Kd3 g5 Kc4 d3 Kc5 g4 c4 f4 a6 d2 e6 a3 b6 g3 e7 f3 h6 a2 h7 g2 a7 f2 Nc3 d6+ Kb5 Kd7 e8R Qg5+ c5 Qf4 Nh3 g1Q Rf8 Nf6 Ng5 Qg2 Nf7 Ne4 Nd8 Nc6 Qc2 d1Q Qb2 Qc2 Nd1 Qh3 Bd2 Rb8 a8Q Ng3 Rc1 a1Q Qa5 Ne5 Bg2 f1N Bd5 Bb7 Bf7 Bd5 Ka6 Ba2 Ka7 Ne3 Rf1 Nd3 Rf3 Rg8 h8B Ne1 Bd4 N3g2 Bg1 Qce4 Ra3 Qc6 Rc2 Rh8 Rac3 Rh7 Ne6 Re8 Nd8 Re4 Qab5 Rb4 Bde3 Rb3 Bc1 Rh6 Bce3 Re6 Bd2 Qf6 Bg5 Qc1 Qa5 Qcf4 Qb5 Re4 Qa5 Q6e5 e3 Rd4 Qb5 Rd5 Qe2 Rd2 Qf3 Re2 Qh5 Qcf3 Nb7 Kc6 Nd8+ Kb5 c6 Ka4 c7 Q3e4 c8B Qc6 Bd7
1bK2n2/4q1nn/PQbB4/5N2/4p1RQ/bRP5/nP1krR2/R1BBq2N b - - 0 1 illegal: No possible last move
q2B1Qqk/4P3/P1BNn2r/2qQK1Pb/1R4pN/4R3/1Qr2n2/n1R1R2q b - - 0 1 legal: proof: c4 a5 g4 g5 f4 f5 gxf5 d5 cxd5 e5 fxe5 g4 h4 Be7 b4 Bg5 hxg5 axb4 Kf2 Kf8 Ke3 Kg7 Ke4 c5 d4 h5 a4 b5 a5 h4 a6 c4 f6+ Kh7 f7 b3 f8Q c3 e6 b4 e7 h3 e8R c2 d6 h2 d5 b2 d7 b3 d6 Nc6 Nf3 Rb8 Bg2 Nd4 Be3 c1N Qc2 Ne6 Re1 h1Q Nbd2 b1Q Nc4 b2 Nh4 Nf6+ Ke5+ Ne4 Bb6 Nb3 e3 Qd1 Rc1 b1Q Qb2 Nf2 Bc6 Qdf3 e4 Na1 Bc7 Qe7 d8R Qa2 d7 Rb7 Ba5 Rc7 Nd6 Bb7 Rb8 Bc8 d8Q Bd7 Bb7 Rc2 Bc6 Qc4 Rb4 Qc5+ Bd5 Qef7 Qa8 Qg8 Bd8 Nf4 Re6 Be8 Re3 Bh5 Qb7+ Qc7 Bc6 Qfg2 Re8 Ne6 Qb5 Qb6 Qd5 Qa5 Kf6 Qc5 e5 Nf4 e6 Qf3 e7 Ne6+ Ke5 Qfg2 Rce1 Qf3 Qf4 Kg7 Rf8 Rh6 Rf6 Qfg2 Rg6+ Kh8 Qf8 Qgf1 Rc1 Qfb5 Rf6 Qb8 Ree1 Qb7 Rf3 Qa8 Rfe3
4N1nn/P2n2r1/1Q1Q3q/1q2P1QR/n1B5/b3p1Nr/KPq1B1kR/1Q2B3 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 b5 c3 b4 cxb4 d5 bxa5 Be6 a6 Bc8 f3 dxe4 Qb3 e3 Qd1 e2 Kf2 e5 Ke3 Be6 Ke4 Bd5+ Kd3 e4+ Kc3 e3 Kc2 Be4+ fxe4 Bd6 Nc3 Be7 Nb1 Bf8 Kb3 Kd7 d4 Ke6 a4 e1N h4 c5 a7 f5 a5 g5 d5+ Ke5 d6 Kf4 e5 Kg3 d7 f4 h6 f3 a6 c4+ Ka2 f2 h5 g4 h7 c3 h6 c2 Na3 Nc6 Qd6 Qb6 d8Q Nce7 Rh5 Rb8 a8B Rb7 a7 Ng6 Bc4 f1Q Qg5 Nd3 Nb5 Kg2 Ne2 g3 Bd2 c1Q Nc7 Nc5 Be1 Nd7 Ne8 Qc2 Rc1 Qc6 Ra1 Rc7 Bb7 Qf6 Bba6 Qb5 Qb6 Ba3 Rc1 Kf1 Qd6 g2 Ng3+ Kg1 Be2 Qb6 Bac4 Qb5 Bc3+ Kf2 Rch1 g1N Be1+ Kg2 Qb6 Nh3 Qd6 Nhf4 Qb6 Nd3 Qd6 N8e7 Qb6 N3c5 Qd6 Rf8 h8Q Na4 h7 Ng8 Qb6 Qe6 Qhf6 Nh8 Qe7 Qh6 Qed6 Ng6 h8Q Rf3 Qh7 Nh8 Qgf5 Nf8 Qhg6 Rg7 Qgg5 Nd7 Qfg6 Rf4 Qgd3 Rh4 Qd1 Rh2 Qb1 Rh3 Rh2+
5BQn/bRb2rb1/5r2/NP4rQ/5N1Q/bp1Knb1P/2P2BR1/1B1kQ3 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Rh6 d4 cxd4 a4 Rh8 b3 a5 Qd2 b5 Qd1 Qb6 Ra3 b4 Ra1 Qb5 axb5 a4 Bb2 a3 Bc1 Ra4 bxa4 Ba6 Qf3 Bb7 Qd1 Bc8 Ke2 Kf7 f4 Kf6 h3 g5 a5 d5 h6 e5 a6 d3+ Kd2 e4 a7 e3+ Ke1 g4 a8Q d2+ Ke2 d4 h7 a2 Qe1 d1R Qf3 g3 Qff2 d3+ Kf3 g2 Ke4 e2 Qb6+ Nc6 Qa7 d2 Qa6 Bb7 Qa7 Nh6 Ba3 Nf7 Qaf2 Rg8 Qh4+ Rg5 Rh2 Ne7+ Kd3 Bf3 h8Q+ Bg7 Q8h7 Nd5 Q7h5 Ne3 Bc1 Bf8 Na3 Nh8 Nc4 Bd6 Na5 Bc7 Ba3 Rb1 Bc1 d1R+ Bd2 Ke7 f6+ Kd6 f7 Kd5 f8Q Rdc1 Qef2 e1B Ne2 g1B f5 Rd1 f6 Rbc1 Rb1 a1B f7 Bg7 Nf4+ Ke5 Qe2 Bef2 Bg2 Rf1 Qg8 Bg3 f8B Kf5 Ng6 Bgd6 Nf4 Rf2 Bh1 Rcf1 Rg2 Bc5 Be1 Ba7 Kd2 Ke4 Rb3 Bh2 Rc3 Bd6 Rc7 Bg3 Nd5+ Bgf4 Rb7 Bc7 Qg3 Bfd6 Nf4 Bg4 Nd3 Bac5 Qgh4 Rf7 Rg1+ R1f3 Bf2 Ba7 Qf1 Kd4 Qe1 R3f6 Be4 Bf3 Nf4 Bdc5 Bd5 Be7 Ba2 b3 Rg2 Bec5 Qh1 Ba3 Ke1 Kc3 Bb1 Bd5 Ke2 Kb2 Be1 Kc1 Kd3 Bc6 Qf1 Bf3 Qe2 Nf1 Qe4 Kd1 Qb4 Ne3 Bf2 Bg4 Qc3 Bf3 Qe1#
2n5/p3b2B/1N1PQ1bN/1PK1N1PQ/2b1bbNB/r2rr3/7n/1R3RQk b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 b4 h3 g4 h4 f4 h2 b6 h3 f6 Nd7 b7 Ne5 b8Q Be6 b5 Nf3+ Kc4 Rh6 f5 Ke5 d4+ Ke4 f7 c5 f6 Qb6 Qe8 Rd8 Bg5 Bf5 d6 e5 d5 Ne7 d7 Nc8 Qe7 Bg6 Qe6 Be7 Bh4 Kf4 f8Q e4 g5 e3 f7 e2 Na3 e1R Nc2 Re3 Bd3 Rh7 Kb3 c4+ Ka4 c3 Rb1 Rh5 Qe2 Qc5 Qh6 Qb6 f8N Qc5 Qf2 Qd4+ Nb4 c2 Nh7 c1B Nf6 Qc5 Qh8 Rh7 Ng4 Rf7 Qh6 Rf6 Qg8 Ra6+ Kb3 Qb6 Kc4 Ra3 Qh5 Bd2 Bc2 Bc1 Nd3+ Ke4 Ne2 Bd2 Rhg1 h1B Nef4 h2 Rgf1 Bg2 Qf7 h1B Qe8 Nh2 Nde5+ Red3 Qf7 Re8 d8N Bf3 d6 Be2 Nd5 Bf4 Qe6 Bg2 Qe1 Qg1 Nb6 Bh1 Ndf7 Bf3 Nf2+ Ke3 Kc5 Bfe4 Neg4+ Kf3 Nfe5+ Kg2 Nh6 Rd1 Qd2 Bc4 Qe3 Rd2 Nfg4 Kh1 Bd3 Bed5 Bf5 Be4 Qd4 Rdd3 Qf2 Bf7 Bh7 Bfg6 Ra1 Rab3 Rad1 Ra3 Rb1 Bb7 Ned7 Bf8 Qg8 Ree3 Qe6 Be7 Nde5 Bbe4 Qxg1#
K4n2/PN2pPb1/2Q1n1R1/1B1b2P1/R1rkr1B1/2Q1N2n/rN3Q2/2N1r1n1 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 f5 Ra4 bxa3 Ra8 a4 Bd7 a5 Bc8 g4 Bh6 h4 Qd6 h5 Ra6 Bb2 Bf8 Be5 Ra8 Bf4 gxf4 g5 Qe6+ Qe2 Qf7 Qd1 Qg6 hxg6 Bd7 Bg2 Be6 Bf1 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 a4 b5 d4+ Kb4 a6 h5 d6 c5 Kd5 h4 a7 f3 g7 f2 f7 h3 f6 h2 d7 c4 d8Q c3 a5 c2 a6 c1R Qb6 Bf5 Qe1+ Rc3 Ne2 Bc2 Qc6 Rh4 Nd2 Bf5 Nc1 Re4 Nc4 Nh6 g8N Nd7 Nb2 Bg7 f8Q Nf7 Nh6 Nd8 Ng4 Ne6 Ne3 Bh7 Be2 f1N Bg4 Nd2 f7 Bg6 Qf2 Nf3 Qh8 Rc4 Ra4+ Kc3 Rd1 h1N Qhc8 Rb8 a8B b4 a7 b3 Bb7 Ndf8 Ba6 Ng1 Bb5 Nh3 Re1 Ng3 Rh1 Ne2 Rh2 Nhg1 Rh6 Nh3 Q8c7 Bh5 Rg6 Rb7 Qc5 Neg1 Kc6 Rb8 d5 Rd8 Kb7 Rc8 Qa3 Kd4 d6 Rd8 Nbd1 b2 d7 b1R Qc6 Ra1 Nb2 Ra2 Qb4 Rc8 d8N Rc7+ Ka8 Rb7 Bd1 Bf3 Be2 Rd7 Qa3 Rd5 Qb4 Rde5 Nb7 Rh4 Nf1+ Re3 Qa3 Bd5 Bh5 Re4 Bg4 Ke5 Qb4 Re1 Ne3 Kd4 Qc3+
b1n4Q/3b1qq1/1N1PqP2/P2R1Q2/b1NR2B1/b5K1/1Qb3pB/k2n2QN b - - 0 1 legal: proof: g4 h5 h4 d5 e4 g5 c4 b5 cxd5 f5 gxf5 g4 f4 a6 f6 Kd7 f7 Rh7 f5 Rg7 b4 Rg5 hxg5 a5 e5 axb4 Bg2 Ra6 Bf1 Rf6 exf6 Bg7 Be2 Bh6 Bf1 Bf8 Kf2 Kd6 d4 e5 a4 c5 a5 e4 g6 g3+ Kg2 c4 g7 h4 Bb2 b3 Nd2 e3 Ra2 c3 Ra4 e2 Qb1 e1Q Qd3 h3+ Kf3 c2 Rh2 c1Q Ne2 b4 Qe3 Qc4 Qe8 Nd7 Nb1 Qe7 Nd2 Nb6 Qb5 Nh6 g8Q Bd7 Rf2 h2 Bh3 Qf1 Bg4 h1B+ Kf4 Qc8 Ba1 b2 Nc4+ Kc7 Qg6 b1B d6+ Kb7 d5 b3 Qg5 Bc2 Be5 b2 Qg8 b1B Qb2 Ka6 Rb4 Bg7 f8N Bca4 f7 Bbc2 Rf3 Qa1 Rd3 Qe6 Rb5 Qc7 Rd4 Nc8 Qh8 Bf3 f6 g2 Ng3 Qa2 Nh1 Nf5 Qh3 Ne3 Kg3 Nd1 Qh2 Bh6 Qg1 Bc1 Rc5 Be8 d7 Qb7 d8Q Bed7 d6 Bd5 Qc3 Ba3 Qb2 Qa7 Qc7 Ba8 Rcd5 Qb7 Qc5 Qc7 Rd3 Qb3 Qcf2 Qa7 Rd4 Kb5 Qf5 Kb4 Rd5 Nc3 R3d4 Nd1+ Kh4 Qb7 Bh2 Qc7 Qa1 Qa2 Kg3 Kb3 Qb1+ Qb2 Qc1 Ka2 Qd2 Ka1 Qc3 Bdb5 Nd7 Bbc6 Qd2 Qa2 Ndb6 Bd7 f8Q Qf7 Qh8 Qb3+ Kh4 Qe3 Qb4 Qee6 Kg3 Qg7 Ne5 Qc4 Qb3 Qef7 Qb5 Qe2 Nec4 Qee6 Qb2+
2K2nN1/3BQ1qb/PB3B2/2RPRq2/3N1b1q/1p1Bk1b1/1bP5/4rQqR b - - 0 1 legal: proof: g4 a5 b4 axb4 d4 h5 gxh5 d5 e3 e5 e4 c5 dxc5 b5 Bd3 d4 Bf1 Nd7 f3 Nb6 f4 Nd5 exd5 e4 Qe2 Ra6 Qd3 Re6 Qd1 Re5 fxe5 Ke7 Qe2 Kd7 Qd1 Ke8 Kf2 Ke7 Kg3 g5 h4 f5 a4 e3 c6 d3 a5 g4 Kf4 d2 a6 b3 h6 b2 e6 Kd6 h5 Kc5 Ke5 b4 c7 e2 e7 e1B e8Q g3 h7 g2 h6 b3 Qe2 d1Q Nf3 g1B Nbd2 b1Q Bg2 f4 Nd4 f3 Qf1 f2 Be4 Bf5 c8B Nf6 Bd7 Qg4 Ra4 Rg8 h8B Nh7 Bf6 Bg7 Qf7 Nf8 h7 Qa1 h8R Bh7 Ra3 Qc8 Ra2 Qh4 Qe7+ Kb6 Kd6 Bh2+ Qe5 Qac3 Ra5 Bf4 Rc5 Qcg3 Ke7 Qc7 Ke8 Qg1 Qe7 Qe5 Kd8 Qeg5 Qh3 f1Q Kc8 Beg3 Bb2 Qa1 Qf1 Qf5 Bc3 Bg6 Rh5 Bh7 N2f3 Bh8 Nc6 Rg6 Bfd4 Re6 Bf2 Bg7 Bf6 Qae5 Nfd4 Bh8 Bg5 Qg7 Bf6 Re5 Nd8 Re6 Nf7 Re5 Nh6 Re6 Bf3 Re1 Ng8 Qe4 Ne6 Bg6 Rc7+ Be3 Qc4 Qh7 Bg5 Bb2 Qf1 Qg7 Bf6 Bh7 Re5 Qef4 Be4 Qf5 Nc5 Bef4 Ne6+ Ka5 Rc6 Ka4 Ba7 Ka5 Rc5+ Kb4 Rb5+ Kc3 Nd4 Kd2 Bb6 Ke3 Ra5 Qfg4 Rc5 Qf5 Bd3+
1R6/nRb4R/K2N2b1/1n1PbR2/1B1q2q1/p3Q3/PBq1N2P/1Qq1kb1N b - - 0 1 legal: proof: f4 h5 b4 a5 e4 d5 Ke2 e5 Kf2 g5 Ke1 c5 bxc5 b5 Bc4 Ra7 Bb3 Re7 exd5 e4 Bc4 Re5 Be2 Rh6 Bg4 f5 fxe5 f4 Be2 Rh7 g4 Rf7 Bf3 Rf5 gxf5 Kf7 Be2 Ke8 Bg4 hxg4 Ke2 Kf7 d4 g3 c4 b4 d6 b3 c6 b2 f6 Kg6 c7 Kf5 e6 Kg4 f7 g2 e7 f3+ Ke3 a4 e8Q a3 c5 Nh6 c6 Bf5 c8R Bg7 f8B Be5 c7 Bg6 d7 Nc6 Nd2 b1Q Nf1 Qc2 Bc5 Nf7 Ne2 f2 Rb1 g1B Rcb8 Nd6 c8N Na7 Bb2 Ndb5 Nfg3 Kh3 Rb7 Kg2 Nd6 g4 d5 Qh4 d8R Qf6 Nh5 g3 Rdd7 Qh4 Rh7 Qg4 Qf7 f1B+ Qf2+ Kh3 Qe1 g2 Qd1 Qc4 Kd2 Qd4+ Kc2 e3+ Kb3 Qde4 Qf4 Qc2+ Kb4 Bf2 Ka5 g1Q Qc1 Kg2 Ka6 Bg3 Qg5 Bgf4 Nhg3 Kf2 Qd1 Qg2 Qd3 Qe4 Rg1 Qd4 Qb3 Qdd1 Nh1+ Ke1 Rg2 Qdc1 Rf2 Bg3 Rf5 Qd4 Ng1 e2 Qge3 Bgf4 Nc4 Bc7 Nd6 Be5 Qb4+ Kd1 Qbb3 e1Q Ne2 Qeh4 Bc3 Bg3 Rb8 Qhg4 Ba1 Nc3 Qb5 Ke1 Qbd3 Be5 R1b7 Q2b2 Qb1 Qc2 Bb2 Ncb5 Bb4+
kbr3nR/4r1b1/1B1q2N1/P1b2p2/2Q3RN/QKR2p2/n4P1P/BN3n1R b - - 0 1 legal: proof: e4 d5 g4 a5 b4 h5 gxh5 d4 bxa5 d3 cxd3 Nh6 d4 Bg4 d5 Bc8 d6 Ng8 d4 g6 d5 b6 e5 Bb7 Bd3 Kd7 Bf5+ gxf5 Bb2 Ba6 Bc1 Ke8 Bb2 Bg7 Ba3 Kf8 Bc1 Bb5 e6 Bd7 exd7 Bh6 Nd2 Kg7 Nb1 Kf6 Qa4 Bg7 Qd1 Bf8 Kd2 Ke5 Kc3 c5 a4 f4 a6 f5 a5 f3 h6 c4 h7 b5 a7 b4+ Kc2 c3 Nh3 b3+ Kd3 b2 Kc4 c2 Kc3 Nc6 Kb3 Bg7 Nf4 Rc8 a8Q Nb4 Ra3 Na2 Qa6 e6 Bd2 c1B Ng2 Ke4 Bb4 e5 Bc3 Bf4 Qc1 Qf6 d8R Qf8 d7 Qd6 Bb4 Kd4 Qaf1 e4 Bc3+ Kc5 Nh4 e3 Re8 e2 d8B e1B Re4 Bg3 Rg4 Rc7 Qd3 Re7 Qdc2 Kb5 Bb6 Ka6 Qe4 Kb7 Qc4 Ka8 Bf6 Qd8 d6 Bb4 d7 Bb8 Qe3 Qc7 d8R Qd6 Qec3 Bc5 Be5 Nf6 Re8 Rf8 h8N Ng8 Rd8 Rfe8 N8g6 Rf8 Rd7 Rc8 Rd8 Nf6 Rh8 Ng8 Nd2 b1N Q3d3 Nbc3 Nb1 Ne4 Ba1 Ng3 Ka4 Nc1 Rc3 Na2 Kb3 Nf1 Qe3 Qe6 Qc1 Qd6 Qa3
1K6/rR3q1R/QB1N2qN/2p5/kP3P1Q/bNnRB1n1/r1p3P1/n1Rb4 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 f5 hxg5 f4 c4 f3 b6 Nh6 exf3 Qd7 f4 Qc6 f5 Qb5 cxb5 Ng8 Bc4 dxc4 Ke2 Kd7 Ke3 c5 Ke4 h5 Kd5 e5 f4 a5 d4 h4 b7 h3 b6 h2 g6 c3 g7 a4 f6 e4 f7 c2 Na3 e3 Qd3 e2 Be3 e1Q Rc1 Nh6 g8N Ra7 Nf3 Qg3 Nb5 a3 Nd6 a2 Qa6 a1N Nd2 Bg7 f8R Qg6 Nb3 Nf5 Nh6 Nc6 b8Q Ng3 b7 Rh7 Rhd1 h1Q Rd3 Qhh5+ Rf5 Be5 Rf8 Ra8 Rh8 Rf7 Rh7 Na7 Rd2 Nb5 Rd3 Ra7 Qa8 Kc7 b8R Bg4 Rb6 Rd7 Qh8 Bd1 Qf6 Rg7 Qh4 Bf6+ Ke6 Nc3 d5 Rd7 Qc4 Ra2 Qa6 Kd8 Rb5 Ra7 Rb6 Be2 Rbb7 Bd1 Ne8 Qf7+ Kd6 Qhg6 Kc6 Kc8 d6 Kd8 d7 Ke7 Bd4 Ke6 Kc7+ Kd5 Kb8 Bg7 Qaf6 Kc4 d8B Bh8 Bb6 Kb5 Qe6 Ka4 Bg1 Bd4 Nd6 Be3 Rb1 Bd2 Be3 Bc1 Qef6 Bb2 Rc1 Ba3 Qe6 Qe4 Qc4 Qeg6 Qa6+
1RrRrbQ1/5nBB/2nQ1P1B/k1PRN2p/2NP1q1b/q2n4/4p1K1/5B2 b - - 0 1 legal: proof: h4 c5 e4 g5 a4 gxh4 b3 f5 exf5 b5 axb5 d5 c3 d4 cxd4 c4 Nc3 Bb7 Nb1 Bf3 d5 c3 Nh3 Be2 Ng1 Bc4 bxc4 Qb6 Ba3 Qd6 Bc1 Qd8 f4 Kd7 Kf2 Kc7 g4 Kb6 g5 a5 c5+ Ka7 d6 h5 f6 e5 g6 e4 d7 c2 f7 h3 f5 a4 g7 h2 f6 a3 Nf3 a2 Kg2 e3 Ne5 e2 b6+ Ka6 b7 Nh6 g8B Ka5 Na3 Qc7 d8R Nc6 Rb1 a1Q Bh7 Rc8 b8Q Qb2 Rg1 h1N d4 Nf2 Nac4+ Ka6 Bd2 c1B Qdb3 Qa3 Qg3 Qd6 Qg8 Nd3 Bf4 Bd2 Qc7 Ba5 Rb8 Be1 Qd7 Qc7 Qd6 Bh4 Bc1 Bg7 f8B Nf7 Kf3 Bh6 Rg5 Bg7 Kg2 Bh6 Qg6 Rg8 Bg7 Re8 Bh8 Bf8 Qg8 Qca5 Bg7 Qd2 Nd7 Qf4 Rd5 Qa5 Nde5 Qa3 Nb6 Ka5 Be3 Qf5 Beh6 Qf4 Nbc4+
1R2NrqR/RQ1r4/1K2BP2/P2Q2q1/5nPB/2Nn4/Rpp2k1B/3bbn2 b - - 0 1 legal: proof: c4 a5 e4 g5 h4 f5 hxg5 e5 exf5 d5 cxd5 e4 b4 axb4 d3 Ra3 dxe4 Ra4 e5 Ra8 Kd2 Kf7 Kd3 b5 Kd4 h5 a4 b3 f4 b2 e6+ Ke7 Kc5 b4 g6 Kf6+ e7 c6 a5 h4 g7 b3 d6 h3 e8R h2 Qd5 Ra7 Nd2 b1Q Ra2 b2 Nc4 Rd7 Ne2 Ne7 g8Q Ng6 Nc3 Qa1 Be3 Qc1 Qh7 Ba6 Rg1 h1N Bf2 Qc8 Kb6 c5 Bg3 Nc6 Bh2 Nb4 Be2 Qe3 Bg4 Nd3 Re1 Qg1 R1e7 Ng3 Bh3 Nf1 g3 Qe3 Bg4 Qa8 Rb8 Bb5 Rg7 Ba4 Re7 Bd1 Rg7 Rd8 Ra7 Rd7 Bh3 Bh6 Bg4 Rf8 Bh3 Rc7 d7 Qe7 d8R Rd7 Nd6 c4 Re8 Qe2 Red8 Qg4 Rdc8 Qg5 Re8 Rd8 Qhb7 Rd7 Rec8 Rff7 Rh8 Rf8 Na4 c3 Ne8+ Ke7 Bg4 c2 Nc3 Bg7 Qh1 Be5 f6+ Kf7 f5 Ngf4 Nb5 Bc3 Qhg2 Be1 Nc3 Rg8 Qh1 Kf8 f7 Ke7 Qhd5 Rf8 Nc7 Kf6 Bh3 Qg4 Ne8+ Kg5 f6+ Qf5 Bg4 Qe5 Be6 Qf5 Rc8 Kg4 Rd8 Rg8 f8B Qb8 Bg7 Rf8 Bh6 Qa8 Bg5 Qc8 Ne4 Kf3 Nc3+ Kf2 Bh4 Qc4 Rb8 Qg5 Qe4 Qcd5 Qf5 Qg8 Qe4 Qh5 Qed5 Qhg5 g4+
BRrbn2b/R4K1N/1qR2P2/PpqQrB1n/1R3Q1p/q6P/k4N2/5Q2 b - - 0 1 legal: proof: d4 a5 e4 d5 c4 e5 cxd5 a4 dxe5 f6 e6 a3 e7 Ra6 bxa3 Kd7 a4 Ra7 a5 Ra8 g4 Nh6 f4 Ng8 f5 Kd6 e5+ Kc5 e6 Nc6 Bf4 Nb8 Be5 fxe5 Qf3 Bd7 Qd1 Be8 f6 Bg6 Qf3 Be4 Qd1 Bf5 gxf5 Kd6 Ke2 Kc5 Kd3 Kb4 Ke4 c5 e8R g5 a4 b5 e7 h5 f7 c4 h3 c3 a6 h4 d6 c2 Kd5 Kb3 Ke6 g4 a7 g3 d7 g2 Nc3 e4 Nf3 g1Q Bd3 e3 Qf1 c1Q Nd1 e2 Nf2 e1B Ng5 Qdc8 Nh7 Bg7 f8Q Na6 Kf7 Qa3 d8Q Nf6 Qd5+ Qc4 Rb8 Nh5 e8R Nc7 f6 Ba5 Re6 Ne8 Bf5 Bd8 Rc6 Rg8 Ra2 Bh8 Qd6 Rg5 Ra1 Kb2 Qf4 Kb3 Rb1+ Ka2 Rb3 Qcc5 a5 Qg3 Rg1 Qge3 Rg3 Qed4 Rge3 Qb6 Re7 Qdc5 Rec7 Rg3 Rcb7 Re3 Rbc7 Re5 Rb4+ Qb3 Rbb7 Rc8 a8B Re4 Rb8 Re5 Rc4 Qbe3 Ra7 Qea3 Rb4+
6Rr/b1n3qQ/3P1QNb/R1Q1qRP1/2Qp2pr/5k2/2PK2n1/1BN2Br1 b - - 0 1 illegal: No extended proof kernel
K1QB1b2/5Nq1/RPQ3kB/2PR1q2/qp2rB2/P3B3/np2Nb1Q/2nr4 b - - 0 1 illegal: No proof kernel
1Qr1bNB1/1N3P1p/1n2qN2/QBPqR1QP/2b2KR1/1b1pn1r1/2Nk4/8 b - - 0 1 legal: proof: b4 b5 a4 e5 f4 a5 fxe5 c5 d4 f5 dxc5 f4 g3 f3 Ba3 Be7 axb5 Bg5 b6 Kf8 b5 Bf4 gxf4 Ke8 Bb4 axb4 Kf2 Kf7 Kg3 Ke6 c4 Kf5 e4+ Ke6 h4 d5 f5+ Ke7 f6+ Ke6 c6 g5 c5 f2 b7 d4 b6 b3 c7 g4 h5 b2 Nh3 Nd7 b8Q Qe7 b7 Qd6 Qa7 Nf8 b8Q Nd7 Bb5 f1B Rg1 d3 Kf4 g3 Na3 b1B Nc2 g2 Qa5 Ba2 Qc1 Ba6 c8N Qd5 Nd6 Nh6 Nb7 Nb6 Qcd2 Ra7 Re1 Bb3 Bc4 Nf5 Ng5+ Kd7 e6+ Kc6 e5 Ne3 e7 Rc8 e8N Be2 e6 Bd1 Rgf1 g1Q e7 Ba4 Ne6 Qg6 Ba2 Bc4 Nf8 Qgg8 Rf2 Qge6 Rg2 Bab3 Rg4 Ra6 Qac3 Kb5 Qce5 Bf3 Qg5 Be4 Qc3 Bg6 Qa1 Nf1 Re5 Ne3 Ned6+ Ka4 Ne4 Be8 Qc3 Beb5 e8B Bd7 Bf7 Be8 Bg8 Kb5 f7 Ka4 Na1 Ka3 Qa5+ Kb2 Nf6 Kc1 Qa4 Kd2 Qa3 Bd1 Nc2 Ra4 Bb3 Rb4 Ba4 Rb2 Na1 Bdb3 Nc2 Rb1 Bd7 Rg1 Bb5 Rg3 Qa5+
3RR2k/b3np1P/1bR2q2/QB1P1PR1/1KN3p1/r1n1NqQr/5B1r/2N5 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 hxg4 axb5 Qd7 Ra4 Qd6 Ra1 Qd8 e4 Kd7 d4 Qe8 e5 Rh7 d6 Ke6 d5+ Kf5 e6 Kf6 Ne2 Bd7 exd7 Qd8 Ng1 Rh8 Kd2 e5 Kc3 a5 b4 c5 f4 g5 h4 Kg7 f5 a4 h5 e4 b6 c4 b5 e3 b7 e2 b6 e1Q+ Nd2 g3 Qb3 g4 Qa2 g2 Ne2 g1B Kb4 c3 Nc4 a3 Ne3 Qe8 d8R Ne7 d7 Qf2 h6+ Kg8 Rh3 c2 Rh5 Qf3 Rg5+ Kh7 Bd2 c1R Be1 Rc2 Nc1 Rh2 Bb5 Rh3 Qd2 a2 Bf2 Ra3 Rb1 a1Q Qa2 Ra6 Qa5 Qf6 Rb2 Ra8 Rc2 Ra7 Rc6 Na6+ Kc4 Bg7 b8Q Nc5 b7 Ne4 Kb4 Nc3 Qg3 Bf8 b8N Rh2 Qac7 Ra3 Qa5 Rh3 Rb6 Bg7 Nc6 Kg8 Ne5 Rh7 Be1 Kh8 Rc6 Bf8 N5c4 Bg7 Nc2 Bb6 Bf2 Qd6+ Rc5 Bd4 N2e3 Qf6 Rc7 Ba7 Rc6 Bdb6 Rb8 Rg7 Rd8 Rg6 h7 Rgh6 Qg1 Rh2 Qg3 R6h3 dxe8R+
1R3nNQ/1q1RP3/BP2pQpN/Knb3P1/5B2/5Bbr/3r4/1r2kNNq b - - 0 1 legal: proof: d4 c5 a4 cxd4 h4 b5 axb5 g6 h5 Qb6 h6 Qa6 Rh4 Qf6 Rh1 Qg7 hxg7 Bb7 Ra4 Ba6 Ra1 Bc8 e4 d5 Qd3 a5 Qd1 d3 f4 d4 f5 Kd7 f6 e6 Be2 Bb7 Bf1 Bd5 exd5 Ra7 Na3 Kc8 Nb1 Re7 fxe7 Kd7 Kd2 Kd6 g4 Ke5 c4 Ke4 b4 f5 d6 h5 c5 h4 g5 f4 d7 f3 d8N f2 b6 a4 b5 a3 c6 a2 c7 h3 c8B h2 b7 Nc6 b8Q Na7 b6 Nb5 Nf7 Rh3 Nh8 Nf6 g8N Nd7 Bb2 Bg7 Qa7 Be5 Qb8 Bg3 Nf7 Nf8 Be2 f1Q Ba6 Qf3 Bc1 Qg2 Qe8 Kf4 Qa8 Qb7 Qf1+ Ke4 Bf3+ Kf4 Kd1+ d2 Kc2 Ke3 Kb3 d3 Kb4 Nd7 Ba3 d1R Nfh6 d2 Ka5 Nf8 Bd6 Rc1 Bc7 d1R Nd2 Rb1 Qf2+ Kd3 Nf1 Rd2 Bf4 Kc2 Qd4 Kc1 Qf6 Kc2 Bc6 Kd1 Bf3+ Ke1 Qb8 Rbd1 Rc1 a1B Rc8 Bd4 Qbe5+ Be3 Rb8 Rc1 Qh8 Rb1 Qef6 Bc5 Ne2 Rb3 Rg1 h1Q Rg2 Rb1 Ng1 Rdb2 Rd2 Rc2 Rd6 Rd2 Rd7
N3k3/1PB3q1/2n5/R3br1R/QbPp1PQ1/3rQ2R/1pnb1q2/1KR2NB1 b - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 f5 exf5 c6 a4 Qa5 axb5 Kd8 b6 Ke8 b7 Qd8 c4 d6 b4 Qb6 b5 Qc7 b6 Qd8 c5 Be6 Bb5 cxb5 d3 Bc4 dxc4 Qd7 Ra6 Qc8 Ra1 Qd8 Kd2 e5 Kc2 g5 h4 a5 f4 e4 c6 e3 h6 a4 f6 b4 h7 d5 h5 e2 f7+ Ke7 c7 e1B c8Q a3 h6 g4 Nh3 g3 Qcg4 a2 Be3 g2 Nd2 g1Q Nf1 Bd2 Ng5 Nc6 b8B Nf6 b7 Qc7 Ne6 b3+ Kb2 Qg2 Bg1 Ra3 Rh3 Qh2 Rc1 a1B+ Kb1 Qf2 Qdf3 Ra5 Qe3 Be5 Rh5 Rg8 h8R d4 h7 b2 Rh3 Qd7 Nc7 Nd5 Na8 Ndb4 Bc7 Nc2 Rh5 Rg5 Rg8 Ra6 h8R Rf5 Rgg5 Ra3 Rh3 Rd3 R8h7 Kf6 R7h5 Bfb4 f8Q+ Ke6 Qc5 Kf7 Qa5 Ke8 Qa4 Qh7 Rg7 Qh6 Rd7 Qg6 Rd5 Qg7 Ra5
2b3bR/1n2QN2/B6N/R1P2nn1/2r1PR1Q/2n1N2k/PKp4p/2R1Brq1 b - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 g5 b4 c5 h4 b5 hxg5 Be7 cxb5 c4 d4 Bc5 dxc5 axb4 Kd2 Ke7 Kc2 Ke6 g4 h5 g6 f5 b6 d5 e3 f4 b7 b3+ Kc3 f3 g5 Kf5 e4+ Kg4 e6 h4 g7 d4+ Kb2 d3 g6 h3 e7 d2 e8Q h2 Qe1 d1B Qe2 Qg5 Qc2 f2 Nd2 Ra4 Ngf3 Ne7 g8N Nf5 g7 Nc6 b8R Nd8 Qe7 Nb7 Nh6+ Kg3 Ne5 Rf8 Bd3 f1N g8R Kh3 Ra8 Qg1 Rh8 Bg4 Ra5 c3+ Kb1 b2 Ndc4 Be2 Ne3 Rc4 Nef7 Bh5 Qf2 Nd2+ Kc2 Nf3 Bd2 b1N Be1 Ng5 Kc1 c2 Kb2 Nc3 Rc1 Bg6 Be2 Bh7 Bd3 Qg3 Rf1 Qg1 Be2 Bg8 Bd3 Ra4 Ba6 Rd4 Qd2 Rc4 Rf4 Rd8 Qf2 Rd1 Bd2 Rf1 Be1 Qg4 Ra4 Qg3 Ra5 Qg1 Qh4+
N1n2r1Q/rB3kr1/4pRbP/r2RK1bB/1PB1p2n/4Q1P1/1B1q4/N6Q b - - 0 1 illegal: No possible last move, all moves rejected
4n3/4B2Q/rrP1bp1P/4N3/3bq1Bn/kNP1Br2/p1rQ1R2/1B2RK1Q b - - 0 1 legal: proof: d4 c5 dxc5 b5 a4 Nf6 axb5 Na6 f4 Ng8 f5 Nb8 f6 h6 Qd3 h5 g4 h4 g5 h3 g6 exf6 gxf7+ Ke7 Qxh3 Ba6 Qh7 Bc8 e4 g5 b4 a5 h4 d5 h5 a4 c6 Kd6 h6 d4 b6 d3 b5 Kc5 b7 Kb4 e5 a3 e6 g4 e7 a2 e8B g3 b6 g2 Bd7 Ne7 Nd2 Qe8 Bg4 Ra6 Nb3 Nf5+ Be3 Qe4 c3+ Ka3 Rh2 Bc5 f8B Be6 Nf3 g1R Ne5 Rg2 Be7 Rc2 Rf2 d2+ Ke2 Re8 Re1 Nh4 Bfh3 d1R+ Kf1 Rdd2 Bf5 Rd4 Bhg4 Rb4 Bg6 Bd4 B6f5 Nd7 b8Q Nc5 b7 Rbb6 Qd6 Rg8 b8Q Rg7 Bd1 Rg3 Bdg4 Rf3 Qbc7 Rb4 Qd5 Nb7 Qcd7 Nd6 Qd8 Ne8 Q8d6 Bc5 Qd1 Rbb6 Q6d2 Rg3 Qf3 Rh3 Qg2 Rf3 Qh1 Qb4 Qd1 Rb2 Bb1 Rc2 Bd8 Qe4 Qd2 Bd4 Be7+
2b2RQB/2r2b2/pRPK4/2PNP3/3R1r2/p6b/Qn1n1bB1/qB2kBN1 b - - 0 1 legal: proof: d4 b5 h4 e5 f4 c5 dxc5 g5 fxe5 d5 hxg5 d4 a4 bxa4 e3 Be7 exd4 Bd6 d5 Bf8 Kf2 Ke7 Ke3 h5 Kd4 f5 b4 a6 g4 a3 c4 f4 c6 f3 Kc5 f2 b5 h4 d6+ Ke6 g6 h3 g7 h2 b6 Nh6 g8B+ Nf7 g5 Kf5 g6 Ke4 b7 Qd7 g7 Ra7 Bh6 Ng5 Bd5+ Ke3 g8B Qe6 Bg7 Nf3 Qc2 Nd2 Bdg2 Rh4 Bh8 Rf4 Bh7 Nd7+ Kb4 Qh3 b8R Nc5 d7 Rc7 d8Q Bd6 Bhe4 Na4+ c5 Nb2 Nc3 Be7 Rb6 Bh4 Rd1 Qe6 Qb1 Qa2 Qg8 Qa1 Qba2 Bg3 Ka5 Bh4 Bb1 Bg3 Bc4 f1B Nd5+ Kf2 Kb4 Ne4 Rd4 Nd2 Bcd3 Ke1 Bb5 Bc4 Ka5 Bb3 Bbf1 Bf2 Rb7 Bc2 Kb6 Bg6 Rb8 Rh7 Rb7 Bf7 Kc7 Rg7 Kd6 Rh7 Ne2 Rg7 Rg1 h1B Rb6 Rh7 Bh3 Bf3 Bhg2 Bfg4 Rh1 Bh3 Ng1 Bfe6 Rh2 Rc7 Rh1 Bf7 Rh2 Bhf5 Rh6 Bh3 Rf6 Bg6 Rf8 Bh5 Bbd3 Bf7 Bb1
3N3k/3Q1R1P/1r3Q2/ppBBrqP1/b2r1bN1/2r5/1n2P2n/KB1RR2R b - - 0 1 legal: proof: b4 b5 f4 e5 d4 h5 dxe5 g5 fxg5 c6 g4 Qb6 gxh5 Qd8 a4 Rh7 axb5 Rh6 b6 Rh8 b5 cxb5 Kd2 f5 Kc3 Kf7 Kb2 Kg7 h4 d5 c4 a5 c5 f4 e6 d4 h6+ Kh7 e7 f3 e8R d3 h5 d2 b7 f2 c6 Nd7 b8R Bb4 c7 Be7 Na3 Ba6 c8B Nb6 Nh3 Bc5 Nc4 Nf6 Rf8 Qd5 Ne5 Bb7 Ng4 Qf5 Nf4 Be4 Ne6 Bd6 Bg2 f1R Nd8 Bc2 Bd5 Ra6 Rf7+ Kg8 Rbb7 Bf4 Rbd7 Na4+ Ka2 Re1 Ba3 Nb2 Bc5 Rb6 Rc1 Rf1 Ka1 Rf3 Bcb7 Rd3 Ba2 Rc3 Bb1 Rh7 Bd5 Kh8 Rd6 Rg7 h7 Rg6 Qe1 d1R Qd2 Rg8 Qd4 Rd2 Rce1 Re8 Qd3 Qg6 Qf5 Ba4 Qd7 Rd4 Be6 Re4 Rdd1 Qf5 Bd5 R8e5 Ne3 Rc1 Nc4 Rd4 Ne3 Ne4 Ng4 Nd2 Rf6 Re7 Rf8+ Kg7 h6+ Kg6 h8Q Nf3 h7 Rc3 Be6 Nh2 Qe5 Re8 Bg8 Re7 Rf6+ Kg7 Bd5 Kh8 Qee6 Re8 Rf7 Re7 Qh6 Re5 Qf6+
n4R1B/1Bb2PBp/K4N1B/1QP3Pb/2N5/bp1b4/2Rr2r1/kQN1q1n1 b - - 0 1 illegal: No possible last move
Q2K1BBk/1Nn2r2/1q2R2N/N1rnPn2/2BB3P/p2pP3/7Q/q1b2rR1 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 e5 fxe5 Qc7 d4 cxd4 g4 Qd8 b6 h5 gxh5 a5 b3 a4 Qd3 a3 Qd1 Bb7 Bg5 Bc6 Bc1 Ba4 bxa4 Bc5 Bg2 Be7 Bf1 Bf8 Kf2 f5 Kf3 Kf7 Kf4 d5 c4 d3 h6 g6 b7 d2 a5 d4 h7 Kg7 a6 Qd7 Kg5 f4 c5 f3 c6 f2 a7 Qh3 c7 Bd6 c8B Bf8 Qc2 d1R Nf3 Rd2 Rg1 Bc5 Nh4 Ne7 Be6 Nd5 Nc3 Na6 b8N Nac7 Nc6 Rac8 a8Q Rd1 Na5 Rhf8 Ne4 Qc3 Nd6 Kh8 Nhf5 Rf7 Nh6 Bb4 Rb1 Qa1 Ndb7 Be1 Be3 Bd2 h4 Bc1 Rb6 Re1 Bd7 Rd1 Re6 Re1 Bb5 d3 Bc4 Rd1 Bg2 f1N Qd2 Ng3 Bd4 Rdf1 e3 Nf5 Bf3 Qb2 Qh2 Qb6 Bd1 Nde7 Bdb3 Ned5 Kg4 g5 Kh5 g4 Kg5 Kg7 h8B+ Kh7 Ba2 g3 Bg7 g2 Bf8 Kh8 Kg6 Ng3 Rh1 g1Q Kg5 Qg2 Rg1 Qgb2 Bab3 Qa1 Kg6 R7f2 Ba2 Nf5 Kf7 Nb5 Bab3 Rc5 Ke8 Nbc7+ Kd8 Ng7 Bd1 Rf7 Bh5 Nf5 Bg6 Qbb1 Bh7 Qb6 Bg8
qb3b1n/2B1BQBB/1K1N2Nb/p4P2/3nPq2/rpPN4/2q1k3/1R3Q1R b - - 0 1 legal: proof: e4 f5 a4 fxe4 g4 h5 gxh5 c5 b4 b5 bxc5 a6 Qg4 b4 Qe2 Qc7 Qd1 Qd8 d3 e5 Bd2 a5 Qg4 e3 Qe2 e4 Bc1 Ba6 Qd1 Bb5 axb5 Ra6 Be2 Re6 Kf1 Re5 Kg2 Re6 Bf1 e2 Qd2 e3 Qd1 Re4 dxe4 Kf7 Nc3 Ke7 Nb1 Ke8 Kf3 Kf7 h4 Ke6 c3 Ke5 c6 e1B h6 g5 h5 d5 h7 e2 Ke3 b3 f4+ Kf6 Kd4 g4 c7 g3 c8Q g2 h6 Qd6 b6 Ne7 f5 Bg3 b7 e1B Ba3 Kg5 Qe6 Kf4 Nf3 Ng6 Qf7 Bd2 Ne5 Qd8 Bd6 Nc6+ Kc5 Ke3 b8B g1Q Na3 d4 Nd3 Qf2 Bc7 Qa8 Nb5 Qf4 Be7 Rg8 Rb1 Nh8 Nd6 Rg5 Nb2 d3 Kb6 Nd4 Be2 Bh2 Qf1 Rg2 Bh5 Bc1 Bg6 d2 Nd3 d1Q Qe8 Qc2 Qd7 Nf7 h8B Rg1 Bg7 Nh8 h7 Bg3 Qh3 Ke2 Qe8 Be3 Qf7 Re1 Rb2 Ra1 Rbb1 Ra3 Qg2+ Qf2 Qg1 Bh6 Qd1+ Ke3 Qf1 Qf4 Qe8 Nf7 h8N Bh2 Bh7 Kd2 Qg1 Ke2 Ng6 Nh8 Qf1+ Kd2 Nf7 Qg4 Bcd8 Bb8 Nd6 Qf4 Qf7 Ke3 Bc7 Kd2 Qh3 Ke2 Qf1+
4qn2/1nB2B1b/3P4/2R1r2B/pPKpqqP1/5N1Q/R3R2N/1RnQ1rk1 b - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 gxh4 e4 f5 exf5 b5 a4 d5 c4 Qb6 c6 Bg7 axb5 Be5 c5 Bd6 cxd6 Qd8 Ke2 Kf7 Kd3 Kf6 g4 Ke5 b4 h5 c7 a5 b6 a4 f3 h3 f6 d4 b7 h4 f7 h2 f8R h3 Be2 Nc6 b8Q Bf5+ Kc4 Bh7 c8B Ra5 f4+ Ke4 f5 e5 f6 Nge7 f7 Qe8 Ba6 Nd8 Nf3 Ng6 Re1 h1Q Ra2 h2 Bg5 Qf1 Bb5 h1Q Nh2 Qf4 Nd2+ Ke3 Ndf3 Nb7 Bd8 Kf2 Bc7 e4 Rg8 e3 f8R Kg2 Rf5 Nf8 Rc5 Kf2 Bd3+ e2 Bg6 Kg2 Bh5 Kf2 Ne5 Qhe4 Nef3 Kg2 Rg6 Rg8 Rf6 Rg6 Re6 Rf6 Qd8 Rf5 Qh4 Re5 Nd2 Ra8 Rh1 e1N Qh3+ Kf2 Bc6 Nd3 Bd5 Rd8 Rg1 Rd7 Re1 Rf7 Re7 Rff5 Bdf7 Nc1 Ndf3+ Qd2 Re3 Rf6 Rb3 Rff5 Ne1 Kg1 Rb1 Rf1 Re6 Qdf4 Re7 Qh1 Re6 Rd5 Re3 Qhe4 Ree2 Re5 Nef3+
4qRqr/n3Q1pb/1R2QB2/1Q4PP/1pb1B3/7N/4P1kr/qNKb1R1R b - - 0 1 legal: proof: f4 a5 b4 axb4 c4 d5 cxd5 e5 fxe5 Qd7 g3 Qd8 Nf3 h5 Qb3 h4 Ng1 h3 Qc2 Be7 Qd1 Bh4 gxh4 Na6 Qc2 Nc5 Qb3 Ne4 Qd1 Ng3 hxg3 Rh5 Na3 Rh7 Nb1 Rh8 a4 Kd7 d4 b5 Kd2 c5 g4 f5 a5 f4 g5 f3 d6 Ke6 a6 Kf5 d7 Kg4 d5 Kg3 e6 b3 e7 c4 e8Q b4 a7 h2 d6 b2 Ra5 f2 Qe6 c3+ Kc2 Ne7 Re5 Qg8 d8Q Ba6 d7 Nc6 Qa5 Bc4 Bg2 f1Q d8R Qff8 Nh3 Qe8 Be4 Rh6 Rf1 h1B Rb5 Bf3 Qc7+ Kg2 Qdd5 Rh7 Kd1 c2+ Kd2 Rc8 a8R Na7 Rb6 Rh6 Qb5 Rb8 Bc6 Be4 Qce7 Rh8 Rd5 Bh7 Bb7 Rd8 Rh1 Rc8 Rf5+ Rc6 Rf3 Rc8 Be4 Rc6 Na3 b1B Bb2 Bba2 Nb1 Bab3 Kc1 Ba4 Qef5 Rh6 Bf6 Bab3 Rd8 Ba4 Rdd1 Bab3 Rdf1 Rh5 Qfe6 Rh6 Kb2 c1Q+ Ka1 Qd1 Kb2 Qd4+ Kc1 Qa1 Bc3 Bd1 h5 Rf6 Bd4 Rf4 Bf6 Rh4 Ng1 Rh2 Nh3 Qe5 Rc6 Qd4 Rb6 Qa1 Bb2 Nc6 Bd4 Na7 Rf8+ Kg3 Bg6 Kg2 Bf6 Qd8 Bd3 Qe8 Be4+
N3R1Nk/Qn1Pn3/P2P2pQ/R5Q1/B1br1p2/1B1q4/1BB2Knr/1qr5 b - - 0 1 legal: proof: c4 a5 h4 d5 cxd5 e5 b4 axb4 g4 h5 gxh5 e4 h6 g6 h5 e3 h7 Bf5 h6 Bg7 hxg7 Ke7 fxe3 Bg4 e4 Ke8 e5 Bc8 e4 f5 a4 Kf7 d4 b5 a5 c5 d6 f4 d5 c4 e6+ Kf6 a6 c3 e7 c2 e8Q b3 e5+ Kg5 d7 b4 e6 Kf6 Nf3 b2 Ng5 b3 Qg4 Ra7 Qe7+ Ke5 Nc3 b1Q Nge4 b2 Bd3 Qb6 Na4 Qd4 Nf6 Qc3+ Kf2 Nc6 Nb6 Na5 Na8 Nb7 Ra5 Qc4 Qc5 Ne7 g8B Qb3 Be4 Qd3 Bf7 Rd8 Re1 Rh8 Bd2 Rd8 h8Q c1R Qg7 Rh8 Qf8 Rh6 Ng8 Rh4 Nh6 Kf6 Bb4 Rh3 Ba3 Rh2+ Qg2 Qb5 Bc2 Qd3 Qe8 Kg7 Qf8+ Kh7 Ng8 Kh8 Re2 Qa2 Qb6 b1N Bb2+ Nc3 Qe3 Qb1 Qc5 Nd8 Re3 Rb7 Qa7 Rb4 Re2 Rd4 Re3 Rh3 Qg5 Rh2+ Kf3 Nec6 e7 Nd1 e8B Bb7 d6 Ne7+ Bd5 Nc8 Bf7 Bc6 Be4 Nb7 Bfb3 Bb5 Bc6 Bc4 Bca4 Qf5 Re8 Qd3+ Kg4 Ne3+ Kf3 Ng2+ Kf2 Ne7 Qfh6+
2Q4q/2p2r2/2Q2P2/BbRBNb2/nqbQ1PPk/Nr6/1BRB1K1p/r7 b - - 0 1 legal: proof: e4 e5 b4 g5 d4 b5 h4 gxh4 c4 f5 cxb5 Kf7 exf5 e4 a4 Bc5 a5 Bb6 axb6 Nc6 Qd2 Ke7 Qd1 Ne5 dxe5 Ke8 f4 Kf7 f6 Kg6 b7 a5 b8B d5 e6 h5 g3 d4 b6 a4 b5 e3 b7 e2 b6 h3 e7 a3 Rh2 d3 Be3 a2 Kf2 e1Q+ Kf3 d2 Be2 h4 Na3 Kh5 Ba7 Rb8 Rc1 a1R Rc5+ Bf5 Bc4 Rh7 e8Q+ Rf7 Bd5 Ne7 Qc6 Nc8 Bd4 Qee7 Bb2 Qh8 Rg2 h2 Kf2+ Bg4 Qda4 d1B Nf3 h1B Ne5 h3 Qd4 Bf5 g4+ Kh4 Rh2 Ba4 Rg2 Ra8 b8B h2 b7 Bb5 Bb6 Ra7 Ba5 Nb6 Bd2 Na4 Ba5 Ra8 Ba7 Rb8 B7b6 Qef8 Bd2 Qe7 Bba5 Qd6 Rc2 Qb4 Rg3 Bhe4 Rgc3 Bed3 Rc5 Bf1 Bbc3 Bfc4 Bb2 Re8 b8Q Re6 Nd7 Re3 Qc8 Rb3 Ne5
B3N3/p1qq1r2/1RP2P1K/Qn2rb1p/r3kQ1R/nn3RR1/2P5/QB2N3 b - - 0 1 illegal: No possible last move, all moves rejected
RBR1QR2/3B1QbP/2N4P/p4bnk/4bN1r/n1PNKbq1/1bN3p1/8 b - - 0 1 legal: proof: g4 b5 e4 f5 exf5 c5 b4 a5 a4 h5 axb5 Qc7 gxh5 Qc6 d4 cxd4 b6 Qc7 b5 Ra6 bxa6 Qd8 Ke2 Kf7 f4 d5 h4 e5 c3 g5 a7 e4 a8R g4 b7 d3+ Ke3 g3 f6 g2 h6 Kg6 f7 d2 h7 Nc6 b8N Ne5 Nc6 Bf5 Bb5 Qg5 Qb3 d1B Na3 Kh5 Nf3 Nh6 Ne1 Bc2 Nd3 Bg7 f8N Nhf7 Ng6 Bb1 Nc2 Nc4+ Kf2 Na3 Ke3 Qg4 Qa4 Ng5 Re1 Bc8 f5 Bb7 Rf1 Qg3+ Rf3 Bc8 Ra2 Bd7 Rb2 Be6 Rb4 Bd7 Rc4 d4+ Ke2 Be6 Bf4 e3 Bb8 Bd5 Qb3 Be4 Rc5 Bf8 Qf7 Bg7 Kd1 e2+ Kd2 e1B+ Ke2 Bd2 f6 Bc1 Qe8 Bf5 f7 Bb2 f8Q Rg8 Qff7 Rf8 Nce5 Be4 Bd7 Rg8 Rc8 Rf8 Qfe7 Rf4 Q7f7 Rg4 Nc6 Rf4 Nc5 d3+ Ke3 d2 Nd3 d1B N6d4 Kh6 h5 Rh4 Nc6 Be2 Kd2 Bd1 Rf5 Bdf3 Ke3 Nh3 Rf4 Kg5 h6 Kh5 Qa2 Ng5 Rf8 Bf5 Qd5 Ba2 Qde6 Bad5 Q6f7 Bde4 Ngf4+
3r1Bb1/P2N2K1/kn2QBQ1/q1rp3P/1RN2N2/pNB1P1rr/n3R3/7r b - - 0 1 illegal: No proof kernel
3N3R/3Q1b2/kpR4r/1bQq2n1/3Qr2B/1P1pRP2/P1rb1K2/r1N2B1Q b - - 0 1 legal: proof: d4 f5 e4 h5 exf5 c5 g4 cxd4 gxh5 a5 b4 Na6 bxa5 Nc5 Be2 Ra7 Bf1 Nb3 cxb3 Ra8 h4 e5 f6 d5 f7+ Kd7 a6 Kc6 f3 Kb6 h6 g5 h5 e4 a7 d3 h7 d4 h6 g4 Bg5 d2+ Kf2 e3+ Kg3 e2 Bh4 e1R Rh3 Nf6 Nc3 Re4 Kf2 Bb4 f8Q Qd5 Nge2 Be6 Nb5 Rc8 a8R Bf7 Nd6 Rc2 Rc8 Ka6 Rc6+ b6 Nb7 Ba5 Nd8 g3+ Kg2 Bc3 Qc5 Ba5 Kg1 g2 Kf2 g1R Rh1 Nd7 Rh2 Nf8 Rh1 Ne6 Nc1+ Rc4 Rb1 Ng5 Rb2 Bb4 Rc2 Ba5 Rc3 Bb4 Re3 Bc3 Qc2 d1B Qd2 Be2 Qd1 Bd2 Rh3 Rf8 h8Q Rc2 h7 Bb5 Qg7 d3 h8Q Rg8 Qhh7 Rf8 Qgd4 Rh8 Qf5 Rh6 Qd7 Rf6 Bg3 Rh1 Rh8 Rfh6 Bh4 Rg1 Be2 Rh1 Qf1 Rg1 Qg2 Re1 Bf1 Rd1 Qh1 Re1 Ne2 Ra1 Nc1
1BNN2nK/1q1b1B1p/2rR3b/1RQ3P1/3r2r1/B2p1Pk1/P2QR3/1rb1R3 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 h4 c5 hxg5 b5 d4 b4 dxc5 Nc6 Rh3 Nd4 Rh1 a4 b3 Nb5 cxb5 axb3 Kd2 Kf7 Kd3 e5 Ke4 b2 g4 b3 b6 d6 f3 Ra3 c6 Qe8 f6 Ke6 g6 Bd7 b7 Ra8 b8B Ne7 g7 Ra3 g8R Ra7 f7 Rb7 g5 Qd8 c7 Bg7 f8Q Qc8 Nc3 b1R Nd5 b2 Bc4 Rb6 Rh2 Bh6 Ne2 Qb7 c8R Rc6 Rg7 Ng8 Qd2 Ra6 Rc5 Rc6 Ne7+ d5+ Ke3 e4 Kf4 e3 Rb5 Qa7 Nc8 Qb7 Bd3 d4 Bg6 d3 Qc5 Ne7 Kg4 Rd8 Kh5 Ng8 Rg2 Be8 Rf7 Rd4 Rf8 Bd7 Rd8 Rd5 Bf7+ Kf5 Nf4 e2 Ne6 e1B Rh2 Bf2 Rg2 Be3 Re2 Bf4 Rf8 Be3 Nd8 Bf4 Rfe8 Be3 Re5+ Kf4 Re6+ Rdd6 Rf6+ Kg3 Rg6 Bf4 Rge6 Rd5 Rd6 Rd4 Bb3 Bf8 Rf2 Kh3 Qe2 Bg7 Be3 Rh1 Re1 b1R Bf7 Re4 Bc1 Rd4 Ba3 Bc1 Qd2 Rg1 Rfe2 Rgg4 Rf2 Bf6 Rh2+ Kg3 Rhe2 Ne7 Kh6 Be5 Rf6 Ng8+ Kg7 Bd6 Kh8 Be5 Ba7 Bd6 Rfe6 Bf8 Rd6 Bh6 Bb8
1k1RR1RQ/2RnPp2/1n3N1Q/6nP/2bQ1n1P/3pb3/1rBb3N/1q1B1K2 b - - 0 1 illegal: No possible last move
nBR2Q2/nP2P3/1Qq2RK1/1bNr3P/1NN4p/1n1n3B/3p3k/1B1Br2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 c5 axb5 e5 d4 cxd4 fxe5 Ba3 Bd2 Bc5 Bc1 Bf8 Kd2 g5 Nc3 h4 Qe1 Bh6 Ra5 Qb6 Ra6 Qg6 Qd1 Qh5 gxh5 g4+ Ke1 g3 Nb1 g2 Ra4 Bf4 Ra1 Bg3+ hxg3 Ke7 Bd2 Kd8 Bc1 Ke8 Kf2 Ke7 Kf3 Ke6 Kg4 f5+ Kg5 a5 c4 d5 b4 f4 e4 a4 c5 f3 c6 f2 g4 d3 b6 d2 c7 a3 b5 a2 b7 d4 b6 d3 Nc3 Ra7 Na4 Nc6 b8N Ra6 b7 Na5 Nc6 Rh7 Kg6 Re7 g5 Nc4 Nb4 Na5 Be2 f1Q Qb3+ Nc4 Nf3 d1N Bf4 g1R Rc1 a1N Nd2 Bd7 c8B Nf2 Bd1 Rd6 Rh3 Qe2 Rf3 Re8 Rc2 Rh1 Nc5+ Ke7+ e6 Bb5 e5 Rd5 Qb2 Nb6 Nc4 d2 Bh2 Nd3 Rf6 Na8 Bg3 Kd8 e7+ Kc7 Bh3 Nb3 e6+ Qe5 Rc1 Qd6 Be5 Nh6 Qd4 Nf5 Qg1 Nfd4 Rc3 Rb8 e8Q Nc6 Qf8 Na7 e7 Rc8 Ne6+ Kd7 Qb6 Qc6 Bb8 Rc7 Na5 Kd6 Nc5+ Ke5 Nc4+ Kd4 Kh6 Re1 g6 Rh1 g7 Rc8 Nd7+ Ke4 g8B Rc7 Bge6 Re1 Bhf5+ Kf4 Kg6 Kg3 Nc5 Kh2 Rc1 Rh1 Be4 Re5 Bh3 Rd7 Rc3 Rd5 Rd6 Nf2 Bb1 Ree1 Rf6+ Qd6 Re3 Nd3 Ree6 Qc7 Rc6 Qd6 Rc7 Qc6 Rc8+
1KN1BQr1/3Q1nb1/2b2NP1/2P3Q1/qNRPp2b/p3q1k1/2b3B1/2n1R1N1 b - - 0 1 legal: proof: h4 c5 a4 d5 d4 g5 hxg5 a5 e3 b5 axb5 f6 dxc5 d4 Bd2 d3 Bc3 Ra7 Bd4 Rd7 Be5 Rd4 exd4 fxe5 Kd2 Kd7 Ke3 Ke6 Ke4 h5 g4 a4 f4 h4 c4 a3 b4 d2 f5+ Kf7 b6 h3 g6+ Kf6 b7 Kg5 b5 Kh4 c6 h2 f6 e6 f7 Qg5 c5 Be7 f8Q Rh6 g7 Rh8 b6 Rh5 c7 Rh8 Nc3 Nh6 g8B Bd6 Nd5 Na6 b8Q Nf7 b7 Kg3 Bg2 Nb4 Qc1 d1Q Qa7 Qa4 b8N Na2 Na6 Be7 Qb7 Bf6 Nab4 Bg7 Nf6 Qh6 Bh7 Rg8 Qg5 Nc1 Bg6 Bd7 Qd5 Bc6 c8N Qh3 Ra2 Qh6 Rc2 Qh3 Ke3 e4 Rc4 e5 Qd7 Qh6 Nf3 Qh3 Re1 h1B Ng1 Qh6 Bf1 Bf3 Bg2 Bd1 Bh5 Bc2 Bg6 Nd8 Be8 Qh3 Qg6 Nf7 g5 Qe6 Qh6 Qh3 g6 Qe6 Kd2 e3+ Kc3 e2 Qg5+ Kh2 Kd2 e4 Ke3 Qh3+ Kf4 Qe3+ Kf5 Ne5 Ke6 Nf7 Rd1 e1B Ke7 Nd8 Kd6 Nf7+ Kc7 Bf2 Re1 Bh4 Qgf5 Kg3 Kb8 Bd3 Qfd5 Bc2 Qg5+
1Q6/K7/1Bk1P1Pb/1qnN1nR1/1pR1pP2/Q1r2bQ1/NB2nR2/2n2R1q b - - 0 1 legal: proof: c4 a5 h4 g5 hxg5 f5 e4 b5 d4 e5 b4 Bh6 bxa5 b4 Bd3 Bg7 dxe5 Bf8 e6 Ra7 e5 Rb7 Be4 Rb5 cxb5 fxe4 Ke2 h5 Ke3 c5 a4 d5 g4 h4 f4 h3 b6 h2 b7 c4 Kd4 c3 a6 c2 a7 Nf6 a8Q Bd7 e7 Qa5 g6 Qd8 Kc5 d4 a5 d3 g7 d2 g8R Rh3 g5 Nd5 a6 Rg3 a7 Nc6 b8B Nc7 Kb6 Rf3 Ra2 Rc3 Ne2 Bf5 Qe1 Kd7 e8R d1N e6+ Kd6 Rf1 h1Q Bb2 c1N Qg3 Rc2 Nbc3 Bg7 Nd5 Qd7 Nec3 Bg4 Rc8 Ne7 Qb7 Bh6 a8Q Be2 Ba7 Bf3 Qbb8 Nf5 Kb7 Qb5+ Bb6 Qa5 Qa6 Qb5 Ka7 Kc6 Qa5 Qd3 Qa3 Qb5 Rcf8 Na6 g6 Ng7 Rf5 Nc5 Rg5 Nf5 Rh8 Nde3 Rg8 Nd4 Rg7 Nde2 Rc7+ Kd6 Ra1 Nf5 Na2 Rc3 Rf2 N1d3 Raf1 Ndc1 Qc8 Nd7 Rc4 Nc5 Qg8 Kc6 Qb8
n4k2/3QPp2/3rBQ2/4p2q/3N3P/b2Q1NKP/R2b1rb1/Q2bqRBR b - - 0 1 illegal: No possible last move
nB1R4/1p1KBN2/1P5q/2QnP2R/2N1P2p/1rn2Qbn/1k1NqN2/4B1b1 b - - 0 1 legal: proof: c4 e5 g4 f5 f4 d5 fxe5 g5 cxd5 a6 b4 f4 h3 Bf5 b5 Bg6 b6 Bf5 gxf5 g4 Bg2 g3 Be4 Bd6 Bd3 Bf8 Bb5+ axb5 Qc2 Ra4 Qb3 Rc4 Qa4 Rc6 Qc2 Rg6 Qd1 Rg4 hxg4 Bb4 Qb3 Ba3 Qd1 Bf8 a4 Ke7 d4 c5 Kd2 h5 Kd3 g2 Ke4 c4 d6+ Kf7 Kd5 c3 e4 b4 a5 b3 a6 b2 f6 f3 g5 f2 a7 f1Q a8Q c2 d7 Rh7 Na3 b1N Bd2 c1B Qa5 Nh6 Nf3 g1N Nc4 Qh3 Qc5 Ng8 Ra8 Kg6 f7 Na6 Be1 Ne7+ Kd6 Nc3 d5 Bf4 Nfd2 Bg3 Qf3 Nc7 Rb8 Qc8 d8B Na8 Bc7 Qcg4 Rd8 Qh2 Bb8 Nh3 Nb2 Qh4 Kd7 Qe2 d6 Ned5 Nbc4 Be7 f8B Rf7 Qff2 Rf3 Qf1 Re3 Qf3 Qf4 Ke8 Qf6 d7 Qh8 Rh2 Qh6 Rh1 Bd6 Be7 Rd3 Rc8 Re3 d8N Rd3 Kd7 h4 Nf7 Re3 Rd8 Rd3 Rg1 Re3 Qa5 Bc5 Rg2 Rd3 Qb5 Bg1 Qc5 B3h2 Rg4 Bg3 Rf4 Re3 Rf5 Rd3 Qf1 Kh5 g6+ Kg4 g7 Rf3 Rh5 Kf4 Qg2 Re3 g8N Rd3 Qd6 Re3 Nf6 Rf3 Na3 Ke3 Ng4+ Kd3 Nac4 Kc2 Nf2 Re3 Qf3 Rd3 Na3+ Kb2 Qc7 Rd4 Qc6 Rb4 Qc5 Rb3 Nac4+
1N4qR/P1Qr1q2/kN1Pn2r/B7/2Kp1N1Q/3Q1r2/2BpP2N/1rR2bb1 b - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 h5 b4 d5 bxa5 c5 g4 d4 gxh5 Na6 Bb2 Nc7 Bc1 Nd5 cxd5 c4 d3 cxd3 Kd2 Kd7 a4 Kc7 h4 b5 h6 Kb7 e6 g5 h7 f5 h5 f4 a6+ Ka7 d6 g4 h6 b4 e7 b3 e8Q f3 a5 g3 Bh3 f2 Qe7+ Bd7 Na3 f1Q Bf5 b2 Nc4 b1R Ne5 g2 Ngf3 g1R Nh2 Rab8 Nc6+ Ka8 a7 Kb7 a8N Rg6 Nb6 Rg7 Bb2 Qf2 Bc3 Ka6 Qh4 Rb3 Rc1 Ne7 Bb4 Ng6 Qe7 Rhg8 h8N Nf4 h7 Ne6 Ng6 Rh8 Nf4 Rf7 Bg6 Bh6 Qc2 Bc8 Qc7 Rd7 Bf5 Rb1 Qd1 Rf8 h8Q Qg5 Qf6 Qg8 Qh4 Rf6 Be4 Bb7 Qb3 Rbf8 Qa3 Bg5 Bc3 Rh6 Bh7 Kb5 a6 Qf3 a7 Qf1 Ne7 Bg2 Ba5 Ka6 Nc6 Qf3 Kd1 d2 Kc2 Qh5 Kd3 Bf1 Kc4 Rff6 Bc2 Qhf7 Qd3 Rf5 Nfd5 Be3 Nf4 Bf2 Rg1 Be3 Rg5 Bg1 Rh5 Rhf6 Rh8 Rh6 Ng2 Rf2 Nf4 Rf3 Nb8+
qN6/p1PBQ3/8/PBP3qk/nr1Nr1r1/2NB2pR/R3b2n/2rB2KQ b - - 0 1 illegal: No possible last move
1q5q/NR2Qq1r/1NR3q1/2P1B1R1/B1Q1pq2/1n1pP1R1/2P2bk1/1K4nN b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 g4 fxg4 axb5 Qc7 Qd6 Qb6 Qd1 Qd8 h3 g5 Ra2 g3 Bf4 g4 Ra4 g2 Ra5 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Qb6 Ra6 Qc7 Ra1 Qd8 Kd2 Kf7 f4 Kf6 b4 d5 g5+ Kf5 e3 Ke4 b6 h5 g6 a5 b5 e5 g7 a4 f5 a3 b7 a2 f6 h4 f7 h3 b6 h2 Bc4 d4 Qe1 d3 Bb5 Nd7 b8R Rh7 b7 Nh6 g8Q Bd6 f8R Nf5 Rf6 Nd4 Nh3 g1Q Na3 g2 Ba4 Qf1 Qc4 g1Q Qh4+ Qf4 Bb2 Kf3 Nf2 e4 Nb5 Ne5 Na7 Kg2 Rf1 Nef3+ Kc1 Qc8 Ba1 Nb3+ Kb2 Be7 Rc6 Qe6 Qf6 Qf7 Qfe6 Bh4 Qe7 Bg3 Rg8 Rd8 Rg5 Rg8 b8N Rgg7 Nd7 Rg6 Ng4 Bf2 Nb6 Rgg7 Ka3 Qb8 Be5 Rg6 Rb1 Qf1 Kb2 Ng1 Kc3 a1Q+ Rb2 Bg3 Nf2 Qad1 Rb1 Qg4 Kb2 Qgf4 Ka2 Qd1 Rb2 Qh5 Kb1 Rg8 Nb5 Qhg6 Na7 Nf3 Re1 h1Q Rf1 Qh3 Nh1 Ng1 Rf3 Qhh4 Rh5 Bf2 Rf5 Qgd6 Rh5 Rg3 Rg5 Qdg6 Na8 Nd4 Rb7 Nb3 Nb6 Qhh6 Qa6 Qhg7 Qc4 Qgh8 Rfxg3+
1b3bkq/P2b1nNq/1pBbNp2/1R3b2/P2K4/2RN2PN/8/BQ1B1rQ1 b - - 0 1 legal: proof: f4 a5 c4 d5 cxd5 f6 b4 Ra6 f5 Ra7 g4 Ra8 bxa5 e6 g5 exf5 g6 f4 Nf3 Nd7 Kf2 Ne5 Nh4 Nf7 gxf7+ Kd7 Qc2 g5 Ke1 g4 Qd1 g3 Nf3 g2 Ng1 Ra6 Ba3 Re6 Bb2 Re3 Bc1 Rg3 hxg3 Qe8 Nh3 Qe7 Ng1 Qd8 Kf2 Ke7 d4 h5 e4 c5 a4 c4 d6+ Ke6 a6 b6 d5+ Ke5 d7 f3 Ke3 c3 a7 c2 d6 Ke6 e5 h4 Nc3 h3 Nd5 f2 Bb2 c1B+ Kd4 h2 Nb4 Bg7 f8N+ Kf7 Nh3 g1B Ra3 Rh6 Ne6 Rh8 Be2 Bf8 Nd3 Bch6 Ba1 Bf4 Ng7 Nh6 e6+ Kg8 e7 Nf7 e8B Rh7 Rc3 f1B+ Kd5 Be5 Qb1 Bc5 Bd1 Bf4 Rg1 h1Q+ Kc4 Qe7 d8Q Bf5 d7 Bcd6 Kd4 Bb8 Qc7 Bd6 d8N Bg2 Qc8 Bc6 Nde6 Bd7 Qc5 Rh5 Rg2 Rg5 Rb2 Qh2 Nhf2 Qh8 Nh3 Rh5 Rb5 Rh4+ Kd5 Rf4 Qg1 Rf1 Kd4 Ng5 Nh5 Qeh7 Nhg7 Nf7 Rc2 Bc8 Bc6 Bd7 Rc3
2bqB2N/QN2Q1q1/5R2/2b5/1qPk1K1B/1PbNrpQR/n1P2p2/4q2N b - - 0 1 legal: proof: g4 c5 f4 f5 a4 b5 axb5 e5 d3 exf4 Ra6 c4 dxc4 f3 Ra1 f4 Qd4 g5 Qd5 a5 Qd1 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Bd2 Ra6 Be3 Rg6 Bc1 Rg5 hxg5 Bc5 Nc3 Be7 Nb1 Bf8 Kf2 Kf7 e4 h5 g6+ Kf6 e5+ Kg5 b3 d5 g7 a4 b6 a3 b7 d4 b8Q d3 f6 Kf5 e6 Ke4 f7 a2 e7 h4 e8N d2 Qe1+ Kd4 Bg2 d1Q Nh3 Qc7 Nd6 Be7 f8N Qd8 Nc3 Nf6 g8Q Nd5 Nce4 Nc3 Nb7 Bc5 Ng6 Qd2+ Qe2 Rh6 Nh8 Re6 Ng3 Re3 Rb1 a1B Qa7 Na2 Rh2 Re4 Nh1 Qb4 Qg6 Re8 Qe7 Bb2 Bd2 Bc3 Rf1 g3+ Kg1 Qd6 N3f2 h3 Be1 Qd8 Nd3 Qd7 Rf2 Qd8 Bf1 g2 Qg3 Bd2 Be2 Bc3 Qf8 Re4 Qe7 Re6 Rf1 Re3 Kf2 Qda5 Qg8 Qd8 Bd2 g1Q+ Ke1 Re4 Qgh7 Qg7 Kf2 Re5 Ng3 Re3 Rhh1 h2 Qh5 Be6 Be1 Bc8 Rhg1 h1Q Qhg5 Qh4 Rh1 Qda5 Nc1 Qd8 Bd3 Qh3 Bg6 Qhh7 Be8 Qd3 Qg4 Qd1 Nd3 Qa1 Rh6 Qc1 Rf6 Bb2 Rh1 Bc3 Rh3 Qa1 Nh1 Qc1 Kg1 Qd2 Bh4 f2+ Kg2 Qe1 Qg3 Re6 Kf3 Re2 Rg6 Re6 Kg4 f3 Kf4 Re3 Rf6
1n1k4/qbB3p1/2RB1rP1/PNNP1q2/1B4p1/2Q4q/q3RQ2/B2n1RKn b - - 0 1 illegal: No possible last move, all moves rejected
N3B1Q1/Rnn1k2K/1p1n4/1N2Qnpn/2b2Q2/PPN2N2/B4Pb1/b2R3q b - - 0 1 legal: proof: g4 a5 e4 f5 exf5 d5 c4 a4 cxd5 a3 b3 Ra4 Bb2 axb2 Bh3 Ra7 Bf1 Ra8 h4 Ra6 g5 Rf6 gxf6 g5 h5 h6 Bg2 Rh7 Bh3 Rg7 Bf1 Rg6 hxg6 h5 Ke2 c5 Kd3 e5 Ke4 c4 d4 h4 d6 b6 f7+ Kd7 f6 h3 Kf5 e4 g7 h2 Kg6 c3 d5 c2 Qd4 c1N Bd3 e3 Kh7 e2 Nf3 e1N Nc3 b1N Qe5 Nh6 g8B Nd2 Bb1 Bg7 f8Q Na6 f7 Ng2 Rd1 Bh8 Qfg7 h1B f8Q+ Qe7 Bf7 Nc7 Qgg8 Qf6 Be8+ Kd8 d7 Ba6 Qfd6 Nd3 Qf4 Qe6 Qde5 Ke7 d8N Nf5 Nf7 Nc5 Nd6 Bc4 Ndb5 Nde4 d6+ Kd8 d7 Ned6 a3 Ncb7 Ba2 Ke7 d8N Bf6 Rac1 Bg7 Qee3 Qe4 Ne6 Qb1 Qfe5 Nf4 Rc2 Nh5 Q3f4 Bg2 Rcd2 Qe4 Rd4 Bcf1 Ra4 Bc4 Ra6 Qe1 Ra7 Qh1 Qd5 Na6 Nec7 Bh8 Na8 Nc7 Na4 Bb2 Nac3 Ba1 Qde5+
3b1R2/1RPP1Qq1/P4Q2/b7/p1n1kN2/1p2nbQb/3R1n1B/1K1NbR1B b - - 0 1 illegal: No proof kernel
qq1n1r2/B2RK1QN/B2p3Q/R2B4/BpP5/2k2P2/q1r1P1qQ/1qN2n2 b - - 0 1 legal: proof: d4 a5 f4 f5 b4 e5 fxe5 c5 dxc5 axb4 Be3 f4 Bd2 Nh6 Bc1 Ng8 h4 g5 Qd2 b6 Rh3 f3 Qd1 g4 Rh1 f2+ Kd2 Bb7 Kd3 Be4+ Kd2 Bf3 gxf3 Bd6 Qe1 Be7 Qd1 Bg5+ hxg5 Ra5 Rh2 Ra3 Rh1 Ra8 Ke3 Kf7 Ke4 Ke6 c4 h5 a4 g3 g6 d6 g7 b3 c6 b5 c7 g2 c8B+ Qd7 a5 h4 a6 b2 a7 b4 Qd2 h3 Ra5 h2 Nc3 Nh6 g8Q+ Nf7 Qg7 Na6 Na2 Rf8 Nh3 g1Q Qdh6+ Qg6+ Kf4 b1Q Be3 Nc7 Ba6 Qe8 Nc1 Qb8 Ng5+ Ke7 e6 Nd5+ Kg4 Qa2 Bh3 Qgb1 Nh7 f1Q Bg1 Qba1 Kf5 Ne3+ Kg6 Q1b1+ Bf5 Qh3 Bc2 Nf1 Be4 Qba1 Bd5 Qg2+ Kf5 Qa4 Bc5 Q4a2 Rg1 h1Q Bb6 Ke8 e7 Kd7 Be3 Q1b1+ Kf6 Qhh3 e8B+ Kc7 Nb3 Qhc8 Ke7 Nd8 Nc1 Qcb7 Ba4 Q7c8 Rc5+ Kb6 Rc7+ Ka5 Rd7 Qcb7 Rh1 Q7c8 Rh5 Qc6 Bf4 Kb6 Re5 Kc5 Qh2 Kd4 Be3+ Kc3 Bc5 Rf4 Rh5+ Rd4 Qh6 Rd2 Bf2 Qbb7 Rg5 Rb8 a8Q Rc2 Qa7 Qbc8 Qc7 Qa8 Ba7 Qcb7 Be4 Rc8 Ra5 Qbb8 Bec6 Ne6 Bd5 Rf8 Qc5 Nd8 Qcg1 Qf2 Qg8 Qg2 Qgg7+
2r1N2k/K4Q1P/3B2p1/Nq2P1pN/n1rrRRrq/4P1n1/3NQ1B1/5rQ1 b - - 0 1 legal: proof: g4 b5 f4 e5 fxe5 h6 a4 Bb4 axb5 Ne7 g5 hxg5 c3 Ng8 b6 Bf8 b4 Ba6 d3 Bc4 b5 Bb4 cxb4 c5 Nd2 Ba2 Nb1 c4 Qc2 c3 Qd1 Bc4 dxc4 Rh5 Bg2 Rh6 Bf1 Rh8 Kf2 Kf8 Ke3 d5 Kd4 f5 Kc5 a5 h4 d4 b7 c2 h5 g6 e3 Kg7 b6 d3 h6+ Kh7 b5 f4 Rh4 d2 Qe2 d1Q Nd2 f3 Ra4 f2 Bg2 f1R Rf4 Re1 Ba3 c1R Nh3 Nc6 b8N Nf6 b7 Qd3 Kb6 Nd8 c5 Kg8 c6 Rc4 c7 Rf1 c8N Ne4 Nc6 Ng3 b8Q Ne6 Qa7 Nc5 Nd6 Rc8 Ne8 Qe1 Qe7 Rh7 Ka7 Kh8 b6 Rg1 Rb4 a4 b7 Qdb1 Qe6 Rd7 h7 Rdd4 b8Q Qd3 Na5 Qb3 Bc1 a3 Qf7 a2 Ba3 a1R Re4 Rb1 Nf4 Na4 Nh5 Qf2 Qbc7 Rbf1 Qcd7 Qd3 Qh3 Qf4 Qh1 Qh4 Qh2 Rf4 Qh1 Rgf1 Qh2 Rg4 Qg1 Rcc1 Rc4 Qb3 Bd6 Qb5 Rc7 Rcc4 Re7 Qb4 Re6 Qb3 Rf6 Qb5 Rff4
K4QqR/2R1Q3/2B1b3/BbN4p/2PBPN1P/1b1n1qp1/3qQQ1b/k1n5 b - - 0 1 legal: proof: f4 f5 a4 c5 e4 a5 d4 cxd4 b4 b5 axb5 g5 Be3 h5 Bc1 e5 fxe5 f4 g4 Rh7 Na3 Rf7 Nb1 Rf5 gxf5 Ra6 Nf3 Rc6 Ng1 Rc5 bxc5 Qf6 Bh3 Qb6 Bf1 Qd8 Kf2 Ke7 Kf3 d5 h4 d3 f6+ Ke6 c3 d2 c6 a4 b6 a3 c7 a2 b7 d4 f7 d3 Bb2 Nd7 b8B Nh6 Nh3 Bd6 f8Q Nc5 Qe2 d1B Nd2 Nf5 Nb3 d2 Rc1 a1Q Rg1 Bd7 c8Q Qa2 Bc7 Ng3 Ba5 Nd3 Qc5 Qf6 Qf2 g4+ Kg2 f3+ Kh2 Bc8 Nf4+ Kd7 e6+ Kc6 e7 Kb5 e8Q+ Kc4 Qfe7 Be6 Nc5 Bb3 Q8f8 d1Q Bh3 Qd2 Rgf1 Nf5 Ba1 Nd4 Kg3 Qf7 Rc2 Qa3 Rg1 Qg8 Rb1 Ba2 Rb8 Nb3 Rc8 Nc1 Rc7 Bb1 Rb2 Be5 Rb8 Ba2 Qee3 Qa4 Qff6 Qd8 Qfe1 f2 Kg2 g3 Kf3 Bc8 Bd7 Bd4 Be8 Be6 Bd7 Qb3 Q3e2 Qh8 Bb2 Qg7 Rh8 Qg8 Qff8 Qb6 Na6+ Kb3 Bc6 Kc2 Q1f1 Kb1 c4 Bb3 Ba3 Ka1 Bc5 Bc8 Qg2 f1B Qh2 Bg1 Qhf2 Bfh3 Be3 Bhf5 Bc5 Qe1 Ke3 Qd2+ Kd4 Bg4 Ba4 Qbg6 Bc6 Bge6 Bcb6 Qg4 Ba7 Ne5+ Kc5 Qf3 Kb5 Bh2 Bd4+ Qfc3 Nc5 Ba6+ Kb6 Bb5 Be3 Qcd3 Kb7 Q3c3 Ka8 Qcd3 Qff1 Q3c3 Bf2 Qf3 Bg1 Nd3 Bd4+ Qc3 Qff2 Qb2 Be3 Qd2 Bd4+
1QNq2B1/2BQ2Nk/4R3/bP4q1/2n1PR2/1nqpB3/1Pb2pB1/2nR1K1n b - - 0 1 legal: proof: f4 e5 fxe5 b5 a4 c5 axb5 f5 g4 a6 d3 f4 d4 cxd4 h3 g5 Na3 h5 Nb1 a5 Nf3 Rh6 Ng1 Rf6 h4 Rf5 gxf5 g4 Be3 Ra6 Bd2 Rg6 Bc1 Rg5 hxg5 Bc5 Be3 Be7 Bc1 Bf8 c4 Kf7 c5 Kg7 c6 d5 c7 a4 g6 a3 e3 d3 e6 a2 e7 g3 e8R g2 Qb3 f3 Qd1 d4 Nd2 h4 Re6 h3 Ne4 h2 Ne2 g1Q Nf4 Nd7 Nd6 Qgg5 Bg2 d2+ Kf1 f2 f6+ Kh8 f7 Nh6 g7+ Kh7 Rb1 a1N Nh5 Nb3 e4 d3 Qg4 Nf5 Qh3 Bb7 c8Q Nfd4 Qb8 Ne5 Nc8 Bb4 f8B Bd5 Bd6 Ba5 Bc7 Ne2 Ra1 Nc4 g8B+ Kh8 Rg1 h1N Bf7 Kh7 Qg4 Bc3 Raa6 Ba5 Rf6 Be6 Rf4 Bd5 Qd7 Be6 Bh3 Bg4 Re6 d1Q+ Kg2 Qd2 Rd1 Bf3+ Kf1 Qc3 Be3 Nec1 Bg2 Bg4 Re1 Bd1 Ng7 Bc2 Rd1 Qd5 Qa8 Qde5 Qb8 Qeg5 Bg8+
NN1qBR2/6nk/b2NPR1q/Q1q1Q3/4bN2/4P1B1/1QpP2p1/K1b1n1q1 b - - 0 1 legal: proof: c4 h5 a4 d5 g4 dxc4 f4 b5 axb5 a5 Qb3 f5 Qd1 e5 fxe5 g5 Ra3 f4 Ra1 Rh6 h3 Rf6 h4 Rf5 gxf5 g4 Rh3 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Kf7 Nf3 Ke7 Ng1 Ke8 b4 Kf7 e6+ Kg7 f6+ Kg6 e3 c5 f7 a4 b6 a3 b7 c3 b5 h4 b6 g3 Qa4 c2 Nc3 h3 Bb2 f3 Nb5 g2 Qa5 a2 Ne2 h2 Be5 c4 Nd6 c3 Bg3 Qc7 Nf4+ Kh7 Bb5 Qd8 Rf1 h1Q Be8 Na6 b8N Nf6 b7 f2+ Ke2 c1Q Kd3 c2 Kc3 Nh5 Rb1 Qd1 Kb2 Nc5 Ka1 Ng7 Na6 Qg1 b8N Qh5 Nc7 Qh6 Na8 Bb7 Rb6 Be7 f8Q Be4 Qf6 Nd3 Qfe5 Ne1 Rb7 Bf6 Rf7 Be7 Rf6 Bf8 Nb7 Ba3 Nd6 Bc1 Qb2 Qgh2 Qae5 Q2h5 g6+ Kh8 Rg1 f1B Qa5 Ba6 Rf1 Qc5 Qe5 Nh5 g7+ Kh7 Nd5 Bb5 R1f5 Ba6 Nf4 Qcb6 Rf8 Qc5 R5f6 Qdc8 R6f7 Nf3 Qg5 Qd8 Qd5 Ba3 Rf5 Bb4 Kb2 a1Q+ Kb3 Qg1 Kb2 Bf1 Ka1 Ba3 Qd4 Bc1 Qb2 Ba6 R5f7 Qhg5 Rf5 Ne1 g8Q+ Kh6 Qf7 Ng7 Qff6+ Kh7 Qfe5 Qh6 R5f6
R5qQ/1rb1QPNb/1qPp4/kb1P3R/1q3B1p/3R1B2/5R1b/KNQ1r3 b - - 0 1 legal: proof: b4 e5 h4 f5 e4 c5 a4 g5 bxc5 b5 axb5 gxh4 Qf3 Nf6 Qd1 Nc6 Ra2 Nd4 Ra1 f4 f3 Nf5 exf5 e4 Ra5 e3 Ra1 Ne4 fxe4 Be7 Ne2 Bd6 Ng1 Bf8 g4 a5 c4 h5 d4 e2 Kd2 e1B+ Kc2 h3 Kb2 f3 b6 d6 c6 h2 f6 a4 e5 f2 f7+ Ke7 c5 Rg8 d5 Ba5 e6 Ra6 c7 Ra7 b7 Bh6 b8R Qe8 c6 Bf4 Bg2 f1B g5 Bb5 g6 Rb7 Ra2 a3+ Ka1 h4 g7 Bg3 Rf2 a2 Nh3 Rh8 Ra8 Qg8 Rg1 h1Q Bf3 Bh2 Rg5 Qe1 Nf4 Qb4 Nh5 Bd7 c8Q Bc7 Qb8 Bc8 Qh1 Kd8 Bf4 Rh6 Qd1 Rg6 Re5 Rg1 Qc1 Rf1 Ra3 Re1 Qa7 Bd7 e7+ Kc8 Rb3 Bf5 Rd3 Bh7 Qd4 Kb8 Qdb2 Ka7 e8Q Ka6 Qe7 Ka5 Rg5 Qh8 g8R Qhd4 Re8 Qb6 Ra8+ Qa6 Re2 Qc5 Qh8 Qg1 Rge5 Qg8 Kb2 Qa7 Rf2 a1Q+ Kc2 Qa6 Ng7 Qa4+ Kb2 Qb4+ Ka1 Qa7 Rh5 Qa6 Re8 Qb6 Ra8+
b1Q1K2Q/NrB2R2/1P2BN2/kpP2b2/N2b2rR/1rP1R2R/4p1q1/3b2r1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 d4 gxh4 dxc5 f5 exf5 Na6 a5 Bh6 Bd3 Bg7 Bf1 Bf8 b4 Nf6 Kd2 Nd5 Ke1 Nb6 Kd2 Nb8 Ke1 Nc6 axb6 a5 Qd5 a4 Qd1 Na5 bxa5 Bg7 Na3 Bh6 Nb1 Bf8 Ke2 d5 Kd3 Kd7 Kd4 Kc6 Ke5 h5 g4 h3 f4 e6 f6 d4 g5 d3 f7 a3 a6 a2 a7 h4 g6 h2 f5 d2 f6 h3 g7 Qe7 g8N Bd7 Nc3 Rh6 Na4 Re8 a8R Rg6 c3 Rg4 Bc4 Rb8 Nf3 Bg7 f8Q Rb7 Re8 Qf7 Qe1 d1B Qh4 Qg6 Qh8 Qc2 Bb3 Qg2 Bf4 Bc8 Rc1 a1R Ba2 Rb1 Nd4+ Kd7 Nc6 Rb3 Re1 h1R Na7 h2 Re3 Rg1 Rh3 h1B Rc2 Bh6 f7 Bg5 Bg3 Be3 Kf6 e5 Bh2 e4 Bc7 Bd4+ Re5 Qg3 Rch2 e3 Rh4 e2 R2h3 Bf2 Re4 Bf3 Re3 Qg2 Qfh6 Be4 f8R Bc6 Kf7 Be4 Ref3 Bd4 Re8 Bf5 Ree3 Be4 Bb8 Bf5 Qe6+ Kd8+ Kf8 Bd7 Nf6 Bc6 Qeg8 Bd5 Nc6+ Kc8 Ke8 Rc7 Qe6+ Kb7 Na7 Ka6 Qc8+ Rb7 Bc7 Ka5 Rf1 Rb8 Rf4 Ba8 Rff3 Rb7 Rf2 Rb2 Be6 Rb3 Ne4 Bh7 Rf7 Bf5 Nf6
3Q4/2PK2B1/2nR1N2/rNBn3r/1PQ1rqkp/B2BR1r1/1R2Pnp1/4n3 b - - 0 1 legal: proof: f4 c5 d4 cxd4 a4 f5 g3 b5 axb5 e5 fxe5 f4 Be3 f3 Bg5 Ba6 Bc1 Bc8 Ra4 g5 Ra2 g4 Ra1 Bb7 Kf2 Bd5 Ke1 Bh6 h3 Bf4 gxf4 g3 Ra5 Be6 Ra1 Bg4 hxg4 Qf6 Ra6 Qh4 Ra1 Qd8 Kd2 Kf7 Kd3 Ke6 Ke4 h5 b4 a5 c4 d6 c5 d3 c6 d2 b6 f2 f5+ Kf7 Kd5 a4 g5 h4 g6+ Kg7 Ke6 Kh6 c7 Kg5 g7 d5 f6 d4 f7 a3 f8B d3 b7 a2 Bg2 f1R Na3 Rf2 Nf3+ Kf4 Nb5 Rh5 Nh2 Qd4 Rb1 a1R Be4 g2 Ba3 Ra4 Ng4 Ra5 Rb2 Ne7 g8Q Nd5 Bg7 Nc6 b8B Rc1 Rh3 Rf3 Kd7 Rc4 e6 Rg3 e7 Qe5 Bh7 Re4 e8R Qd4 Qb3 d1N Nf6 d2 Qc4 N1e3 Rd8 d1N Ba7 Nc2 Bc5 Nf2 Qf8 Ne1 Bg6 Rg4 Re3 Rg3 Qe8 Ree5 Bd3 Re4 Rb8 Qe5 Rb6 Kf5 Qd8 Qf4 Ng8 Kg4 Ra6 Nd4 Rd6 Nc6 Nf6+
3B1bB1/nQ1r2NP/1P6/1k4qr/Nrp2B1R/2pPR1QQ/2p4Q/1nb4K b - - 0 1 illegal: Other
2b1r1B1/4B1p1/1BQ5/1nN1q1p1/pPQ1Qqk1/1qP4R/1QR1nPb1/4K1N1 b - - 0 1 legal: proof: e4 b5 c4 a5 b4 f5 exf5 h6 g4 e6 g5 hxg5 cxb5 c5 a3 c4 b6 c3 b5 Bb4 axb4 c2 Bh3 Ra7 Bg2 Rc7 Bf1 Rc3 dxc3 Rh5 Be3 Rh3 Bc1 Rh8 h4 Kf7 b7 Kf6 b6 d5 h5 e5 h6 e4 h7 d4 Ra2 a4 Rh3 e3 Bc4 d3 Nd2 e2 Nb3 Qd4 Qd2 Qe5 Nc5 Nh6 Bg8 Nc6 b8Q Nf7 b7 Nd6 Qc7 Nd4 b8Q N6b5 Qa8 Qe6 Qab7 Qb3 Qcc6+ Ke5 f6 Kf5 f7 Kg4 f8B Qb1 Qbc7 Qb3 Bf7 Rg8 Be7 Rd8 Qd1 Re8 Be3 c1Q h8Q Be6 Rc2 Bc8 Bf4 Qe3 Bfd6 Qf4 Qa1 Qf6 Q7b7 Qf3 Qg8 Qf6 Qh1 Qf3 Bc7 Qf5 Kd2 Qf6 Ke3 d2 Qb2 d1B Bb6 e1Q+ Kd3 Bf3 Qc6 Qee5 Kd2 Ne2 Ke1 Qff4 Bc4 Bg2 Qf7 Bf1 Qhe4 Bg2 Qfd5 Bf3 Qdd3 Bh1 Bg8 Bg2 Qdc4
2nQ1r2/bq2p1PR/Qr2NBNn/N1Q1P3/1BK1P1kn/p2p4/6Nq/6R1 b - - 0 1 legal: proof: d4 c5 dxc5 b5 e4 f5 a4 g5 axb5 f4 h4 f3 hxg5 Nh6 Kd2 Rg8 Be2 fxe2 f3 Bb7 e5 Be4 fxe4 Rh8 Rh4 Ng8 Rh3 Qb6 Rh1 Qd8 Kd3 Kf7 b4 Kg6 g4 e1Q c4 d5 b6 h5 b5 a5 c6 d4 c5 h4 c7 h3 c8Q h2 c6 a4 c7 a3 b7 Rh5 b6 Qd6 Kc4 Rh7 Nf3 Rh3 Nc3 Rh7 Nh4+ Kg7 g6 Rh6 g5 Qg1 Ng2 Qf1+ Ne2 Qf5 Nef4 Qh3 Ne6+ Kh8 g7+ Kh7 Qd8 Kg6 c8Q d3 Qc2 Kh5 g6 Nc6 b8B Qf3 b7 Qg3 Bg5 Kg4 Bf6 Qd7 Bd6 Na7 b8N Qb7 Rag1 Qf2 Qc5 Nc8 Nc6 Rb8 Qb1 Rh8 Qbb5 Nh6 g8N Qd2 Rb1 Qe2 Rhg1 h1N Na5 Ng3 Qa6 Ngf5 Rh1 Nh4 Rbg1 N6f5 Rh2 Bh6 g7 Be3 Rh3 Qf2 Rhh1 Qf4 Rh3 Qh2 Nh6+ Kh5 Nf7 Rf8 Nh8 Kg4 Ng6 Nh6 Qcb5 Ba7 Bb4 Qc6+ Qc5 Rb6 Rf3 Qa8 Rf5 Qb7 Rh5 Nf7 Rh8 Nh6 Rh7
2N1N2b/1Qp2B1k/3P2n1/1N1Pr2R/p1rQB3/1Rq5/1p1N1PnK/3rqR2 b - - 0 1 illegal: No proof kernel
5N1r/QP2pr2/P5Kn/3b4/1R1QprQB/1Q2p1qB/1R3Pq1/2R1Nbk1 b - - 0 1 illegal: Other
2Q2q2/1p1NQ3/Q3b2P/RBqk1nr1/1P1R2Q1/pb2R1BN/2pPb2n/2K5 b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 exf4 b4 h5 g4 Bd7 gxh5 Bg4 a3 Bc8 b5 a5 Bb2 Ra6 Bc1 Rc6 Qc2 Rc3 Qd1 Rc4 Nh3 Rb4 axb4 Be7 Ng1 Bc5 Na3 Be3 Nb1 Ba7 b6 Qf6 bxa7 Qd8 a8R Kd7 e4 Kd6 h4 c5 h6 g5 h7 f5 h5 f3 h6 f4 Bb2 f2+ Ke2 a4 Ra5 g4 Rh4 a3 Nc3 g3 Nh3 g2 Na4 g1Q Nb6 c4 Nd7 c3 Rg4 Nc6 e5+ Ke7 e6 Kd6 e7 f3+ Kd3 Ne5+ Kc2 Qf8 e8Q Ne7 Rd4 Nf5 Kc1 Ng4 Qee2 Rg8 h8Q Nh2 Rb1 c2 Qa6+ Ke7 d6+ Ke6 Ba1 Rg5 Bb5 f1B Rb3 f2 Rf3 Bg2 Re3+ Be4 Bb2 f1B Qg4 Qf2 Qh7 Be2 Qh8 Kf7 Bc3 Bd5 Qe5 Bb3 Qe7+ Kg8 Ne5 Bce6 d7 Bf1 d8Q Be2 Red3 Qe3 Nd7 Qe5 Qc8 Qc5 Qed8 Kf7 Re3 Bbd5 Rde4 Bb3 Be5 Rg8 Qdh4 Rg6 Bg3 Rg5 Rf4 Ke7 Nb6 Kd6 Nd7+ Kd5 Rfe4 Rg6 Qe7 Rg5 Rd4+
2BRqrB1/kp1QQbB1/p4Q2/rPK2P2/1P1N3q/1p6/R1N1n3/b2b3Q b - - 0 1 legal: proof: b4 d5 a4 c5 c4 g5 cxd5 f5 h4 f4 hxg5 c4 Qb3 cxb3 e3 Na6 exf4 Nc7 f5 Nb5 axb5 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Ke3 Kc7 Kd4 Kb8 g4 h5 f4 a6 d6 e5+ Kc5 h4 d4 h3 f6 h2 g6 e4 g7 e3 g5 e2 f7 e1Q d5 Rh7 g6 Nf6 g8Q Bg7 f8Q Qde8 d7 Q8e2 d8Q Qb2 d6 Qg2 d7 Qed2 Na3 Qe1 Qd5 Qe8 Ra2 Rh5 Qfe7 Qg3 Nc2 Qh4 Bh3 Ka7 Ne2 Re5 Bf5 Nh5 Rd1 h1B Bb2 Ng3 Ned4 Re2 Bg4 Be5 g7 Bf3 g8B Rh2 B4e6 Ne2 f5 Rh1 Rd2 Ra1 Qc7 Bh8 d8Q Bg4 Qh1 Bh5 Bc4 Be6 Qcd7 Bef7 Be6 Rb8 Qf6 Bg7 Bc3 Bh8 Q8e7 Ra8 Rb2 Ra5 Ra2 Qf4 Nf3 Bhg6 Qc7 Nd4 Qfe5 Bh5 Ra4 Qd7 Ra2 Rf8 Ba1 Qe8 Bc8 Qh4 Bc3 Ne2 Rd8 Ng3 Qcd7 Bg7 Nd2 Bd1 Nf3 Ne2 Q5d6 Bh6 Qg6 Bg5 Bg7 Bf6 Qg5 Be5 Qgf6 Ba1 Nfd4
1R3Q2/PBK1Pn2/3pN1k1/2RpR3/1pb3P1/1qqr3Q/1nBR1QN1/b3n3 b - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 a5 hxg5 Bd6 b4 Kf8 bxa5 Ke8 Ba3 Bf8 c4 b5 d4 Ra7 d5 Rb7 Bd6 Rb6 c5 Rc6 dxc6 cxd6 Kd2 f5 Ke3 Kf7 Kd4 h5 Kd5 f4 a4 b4 e4 f3 e6+ Kg6 e7 f2 e8Q+ Kg7 a6 h4 a5 h3 g6 h2 e5 Kh6 g7 Kh7 e6 Qb6 e7 Qb7 a7 Qc7 a8B Nh6 g8R Ng4 a6 Qa5 a7 Kh6 c7 Na6 Ra2 Bg7 Nf3 Rh7 Nbd2 Bf8 Qc2 Qb5 Ng5 Qa4 c6 Bg7 Ne6 Qb3+ Nc4 Nc5 Bd3 f1Q Qf2 Ba1 Bb7 Ne5 Rd2 Qc1 Bc2 Nf7 Re1 h1N Re5 Nd3 Qf8+ Rg7 g3 Kg6 Rh8 Qcb2 Rg8 Q3c3 Ne3 Qba3 Rh8 Rh7 g4 Rh3 Ng2 Qab2 Rhh5 Re3 Rhf5 Ne1 Qh8 Rg3 Qh3 Qb1 Ba6 Bb7 c8R Re3 Rb8 Rd3+ Qd4 Ba8 Bb7 Nf2 c7 Nd1 c8Q Nb2 Qf8 Qd1 Ke4 Qb1 Qf2 Qa2 Rc5 Qa4 Rfe5 Qab3 Bd5 Bb7 Kf4 Ba6 Bb7 d5 Ree2 Ng5 Re3 Bc4 Re4 Rd4 Ke5 Rd3+ Kd6 Nf7+ Kc7 d6 Re5
1n3Kb1/p1B1R1QN/6Pp/2Q3B1/Pq3N1k/R1NP4/1q1rQp2/b1Q3qr b - - 0 1 legal: proof: f4 b5 h4 d5 c4 e5 cxb5 g5 fxe5 Ne7 hxg5 Ng8 e3 Ba3 Be2 Bf8 Bc4 dxc4 Ke2 Ke7 Kf3 f5 Kf4 c5 g4 c3 b4 c4 a4 h6 d3 c2 e4 c3 g6 Bd7 b6 Rh7 e6 Kf6 e7 Be8 e5+ Kg7 e6 Kf6 b7 Rg7 b5 Rh7 g5+ Kg7 Ke5 f4 b6 f3 Nh3 f2 Nf4 Bc6 e8N+ Kh8 e7 Bb5 Ke6 Qd4 Re1 Nf6 Bb2 c1Q Ra3 c2 Nc3 Bg7 Kf7 Ne4 Nf6 Qb4 Qd2 Qa1 Qc1 Bc4+ Ke8 Bg8 Re2 Na6+ b8Q Qb1 Ba1 Q1b2 Qc8 Rb8 Re3 Rb7 Qc5 Nb8 Re2 Rc7 b7 Rc6 N6d5 Bd4 Kf8 Rg7 e8Q Re7 g7+ Kh7 Re1 Rb6 Qh5 Rb5 Qe2 Ra5 Ne6 Kg6 Nef4+ Kf5 g6 Kg5 Nf6+ Kh4 Nh7 Ng5 Qed1 Rc7 Re7 Rb5 Qe2 Rc6 Qcd2 c1Q Qde3 Qg1 Qc1 Be6 g8Q Rcb6 Qg7 Bg8 Qf3 Re6 Qfd1 Re2 Qf1 Rd2 Qe2 Na6 b8B Rb6 Bd6 Nb8 Bc7 Re6 Qcd1 Re3 Qc1 Rh3 Qf7 Bh8 Qg7 Rh1 Ncd5 Qb1 Bf6 Q1b2 Nc3 Qd4 Ne4 Qc4 Bd4 Qbb5 Qf7 Be5 Qg7 Qb1 Bb2 Qb4 Ba1 Bd6 Bf6 Be5 Qee3 Bd4 Qe2 Ba1 Nc3 Q1b2 Bxg5+
Nk2bNK1/2bB4/3PQ2q/R1n1QN2/1P1bp3/R2N1P1r/B2pb2p/2B4r b - - 0 1 legal: proof: c4 b5 e4 d5 a4 g5 axb5 f5 exf5 c5 d4 Nd7 h4 gxh4 dxc5 d4 Ra3 Ndf6 Ra1 Nd5 cxd5 Bh6 Ke2 Bg7 Ke1 Bf8 Kd2 Kd7 Kd3 Kc7 Kc4 h5 b4 e5 g4 a5 f6 h3 g5 e4 f7 a4 f3 h2 b6+ Kb8 c6 h4 c7+ Kb7 g6 a3 g7 a2 Nd2 h3 Nb3 d3 Ne2 d2 Ng3 Qg5 Nf5 Nh6 g8B Ra7 Nc5+ Ka8 Nd3 Bd7 c8N Ng4 b7+ Kb8 Qb3 Bd6 f8N Be8 Nb6 Nf2 Na8 Bc7 d6 Qf4 Kd5 Qh6 Be6 Rh7 Bd7 Ra3 Rg1 h1B Rg5 h2 Qc3 Ra6 Qe5 Bg2 Be2 Bh3 Bd1 Rc6 Bb3 Bf1 Bc4 Be2 Bb3 Qg7 Ke6 Rh3 Bc4 Qh7 Kf6 Qh4 Kg7 Qh6+ Kg8 Ra6 Rb1 a1B Rb3 Ra2 Ra3 Bd4 Qe6 Ra1 Ba2 Bd8 Ng3 Bc7 Rga5 Nd1 Nf5 Nc3 Bb2 Rh1 Bc1 Na4 Rc5 Ka7 b8Q+ Ka6 Qb5+ Ka7 Qa5+ Kb8 Rd5 Ba1 Qc5 Bd4 Qc3 Nc5 Qb2 Nb7 Rda5 Nc5 Qa1 Bf2 Qh8 Bd4 Qhe5
nR2N1k1/1B3Rp1/B3Q2r/N2BN1p1/PB2P2r/1n1npQ1P/2Knb3/6q1 b - - 0 1 legal: proof: g4 c5 d4 d5 dxc5 a5 b4 d4 bxa5 h6 g5 hxg5 e3 Rh7 Qd3 Rh6 Qd1 Rh8 Nd2 e6 Rb1 d3 Ra1 Bd6 Nb1 Be5 Bd2 Qd6 Bc1 Bd4 exd4 Qd8 f3 e5 Kf2 e4 Ke1 e3 Ne2 Qd5 Ng1 Qe4 fxe4 Be6 Qf3 Bh3 Qd1 Bc8 a4 Kf8 c4 b5 d5 f5 c6 f4 c7 f3 c5 b4 h3 b3 c6 b2 a6 Nh6 d6 Bf5 c8N Rh7 c7 Ng4 a7 Nh6 d7 Bg6 d8Q+ Be8 Bd2 Nf7 Nd6 Rh5 c8B Rh4 Qe7+ Kg8 Bb4 Nd7 Na3 b1N Nac4 Nb6 Bb7 Bb5 Ne8 Nd2 Qe6 Nb3 Rb1 Rd8 a8B Rd6 Qe2 f2+ Kd1 d2 Kc2 Rc6 Nf3 d1Q+ Kb2 Qe1 Na5 Bd3 Qd1 Be2 Ne5 Rd6 Bd5 Rc6 Bb7 Na8 Rg1 Ra6 Kc2 Rb6 Bg2 f1N Rb2 Nfd2 Rf1 Ra6 Rf4 Qg1 Bf1 Bf3 Bb5 Be2 Qf1 Rd6 B5a6 Rb6 Qf3 Rd6 Qe7 Rdh6 Qe6 Kh8 Nd7 Ne5 Rf7 Nd3 Ne5 Kh7 Ra2 Kg8 Ra3 Nbc5 Rc3 Ncb3 Rc8 Nbc5 Rd8 Ncb3 Rb8
1nKQ2B1/1NBQp3/3RNPr1/3PR1Nr/PB1pb3/prk5/6n1/b1r4B b - - 0 1 illegal: No proof kernel
k2B2QR/3q1N2/pP1P1n1r/q6Q/1Q1q2b1/1R2BN1p/Pb2Kb1p/3NQ3 b - - 0 1 legal: proof: e4 b5 h4 d5 exd5 e5 g4 g6 c4 a6 cxb5 e4 f4 Ke7 h5 Bh6 g5 Bf8 h6 Qd7 Be2 Qd6 Bh5 gxh5 g6 Nc6 g7 Ne5 fxe5 Nf6 g8N+ Ke8 Kf2 Qd8 Kf1 Rb8 Ke1 Rb6 Rh3 Rc6 Rh1 Rc3 Qg4 Rg3 Qd1 Rg7 hxg7 Qd6 Nf3 Qd7 Ng1 Qd8 b4 Kd7 d4 c5 b6 e3 b7 Kc7 b8B+ Kb7 e6 h4 d6 h5 b5 e2 d5 c4 d7 h3 b6 h4 e7 c3 e8Q h2 Bc7 c2 Kd2 Rh6 Nc3 Bc5 d6 Bf2 Qe1 Ka8 Rb1 Qe7 d8Q Qd7 Nd1 h3 Nf3 Kb7 Kd3 Ka8 Be3 c1B Rf1 Bb2 Qb4 e1Q Qde7 Qc3+ Ke2 Qd4 Qe5 Qf5 Qg3 Qa5 Bd8 Bg4 Re1 Nh7 Rg1 f5 Qh5 f4 Rg2 Nf6 Qgh4 Rh8 Nh6 Rh7 Nf7 Rh6 g8Q Kb8 Kf1 Ka8 N3e5 f3 Qg3 Bg1 Qge1 f2 Nf3 Qf4 Ke2 f1Q+ Kd2 Qfb5 Rf2 Qe8 Ke2 Qd7 Rg2 Bf2 Rg1 Be5 Rb3 Bb2 Rg2 Qd4 Rg3 Bf5 Rg7 Be6 Rh7 Bg4 Rh8
1Q3NNq/3pbPB1/r1BNk1KN/1Q1p2n1/B3pP2/3qb1Rb/2q2P2/4R3 b - - 0 1 legal: proof: d4 a5 h4 b5 a4 f5 axb5 g5 d5 f4 g3 c6 gxf4 cxd5 Nh3 g4 Ng1 Nc6 e3 Nd4 e4 Nf5 exf5 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bb7 Bh3 Ba6 Bf1 Bc8 Ke2 Kf7 b4 e5 c4 h5 g6+ Kf6 c5 h4 g7 h3 b6 h2 b7 g3 Kf3 g2 Kg4 a4 b8N e4 b5 a3 c6 a2 b6 Rh6 c7 Bc5 b7 Rh3 Qa4 Rh8 Bb5 Ba3 Nc6 Qf8 b8Q Rh5 Nd8 Bc5 Bb2+ Bd4 Nf3 Bb7 c8B Ba6 Nc3 Qe8 Nf7 Be3 Rag1 a1B Bb7 Rh6 N3g5 Qc8 B7c6 Rg6 Kh5 Nh6 Re1 g1Q Nh7+ Ke7 f6+ Ke6 g8N Qf1 Qa5 Qd3 Rhg1 Qc7 Rg3 h1Q+ Rh3 Qh2 Ba4 Qh1 Qab5 Qh2 Ne5 Nf7 Ng4 Ng5 f7 Qc8 N4h6 Qh1 Na2 Qc7 Bg7 Bf6 Nc3 Be7 Qb2 Rf6 Nb5 Qh2 Nd6 Qh1 Bcb5 Qcc2 Bc6 Bc4 Q2b5 Rg6 Re2 Qa1 Re1 Qe5 Bf8 Qh8 Rg3 Qdc3 Nc8 Bf1 Bb7 Bh3 Bg7 Q3b3 Ng4 Kf5 Ba8 Ra6 Bc6 Qbd3 N4h6+ Ke6 Kg6 Qdc3 Nd6 Q3d3 Nf8+
2n5/2p1N1qP/RBB2N2/Rq3pNK/Q1q1pQ2/1r4r1/1bP1Br1P/5Bk1 b - - 0 1 legal: proof: e4 a5 a4 h5 g4 d5 gxh5 dxe4 b3 b5 axb5 a4 f4 e5 b6 e3 Bd3 a3 Ke2 e4 Ke1 Nd7 Bf1 Ne5 fxe5 Ba6 Qf3 Bb5 Qd1 Ba4 bxa4 Qd3 Nh3 Qd6 Ng1 Qd8 d4 Ke7 e6 Kd6 d5 Kc5 e7 f5 e8B g5 h6 g4 d6 g3 a5 e2 a6 g2 Kf2 e1R Kg3 a2 b7 Qf6 b8N Qe5+ Kh4 Qb2 h7 Qa3 d7 Bg7 d8Q Qe3 a7 Qb3 Q1d2 Bc3 Beb5 Re2 Qe8 Ne7 Qf4 Kd4 Nd7 Qc4 Nf6 Rb8 a8B Rf2 Bac6 Rg8 Nh3 g1Q Kh5 Rg3 Ng5 Bb2 Nc3 Nc8 Ncd5 Rb7 Be2 Qf1 Ne7 Rb6 Ba6 Rb7 Bd2 Rbb3 Ba5 Qb5 Bf3 Qfd3 Be2 Qdc4 Bb6+ Qbc5 Qd6+ Ke3 Rhd1 Qb5 Rd5 Qd4 Rc5 Qdc4 Qed7 Rff3 Qe8 Kf2 Qf4 Kg2 Qd7 Rf2 Bf1+ Kg1 Qd4 Qd5 Qa4 Qbc4 Ra5 Qe5 Rd1 a1Q Rd6 Qb1 Nfg8 Qg7 Nf6 Qcg8 Bae2 Qc4 Bd5 Qe1 Bc6 Qeb4 Rdd5 Qbc5 Ra6 Q5b4 Rda5 Qbc5 Bd1 Q5b5 Bde2
R1nBB1N1/2q1PB1N/p1b5/1P1nk2q/KRBQ1bR1/2pQn1p1/P7/2q5 b - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 f5 c4 a6 d3 f4 d4 b5 dxc5 bxc4 Qd2 h5 Qd4 g5 Qd1 Rh6 h3 Rf6 h4 Rf5 gxf5 g4 Bh3 Ra7 Bg2 Rb7 Bf1 Rb6 Qc2 Rg6 Qd1 Rg5 hxg5 Qe7 Qa4 Qf6 Qd1 Qd8 Kd2 Kf7 Kc2 d5 e4 g3 b4 d4 e6+ Kg7 c6 h4 c7 c3 Kb3 f3 e7 d3 e8B d2 g6 Kf6 e5+ Kg5 e6 Kf6 b5 f2 g7 h3 Nf3 h2 Bc4 f1N Ka4 Be7 Ng5 Nd7 Nh7+ Ke5 f6 Nh6 g8B Kf4 f7 Nf6 f8Q Nf7 Qg7 Bd7 c8R Bf8 Ra8 Nd6 Bgf7 Nd5 Qd4+ Kf5 Ba3 Nc8 Be7 Qc7 Bd8 Ba3 e7 Bc1 Qe2 d1Q+ Qc2+ Qd3 Nd2 Nfe3 Ne4 Bc6 Rb1 Qd1 Rb4 Qh5 Qcd3 Bd2 Rhb1 h1Q R1b2 Bc1 Rh2 Bd2 Rh4 Qg1 Rg4 Qc1 Qa7 Ke5 Nef6 Nf5 Ng8 Bf4 Qb6 Nfe3 Qbd4+
2n1K1R1/1P6/n2q1p1k/5q1Q/pN1BBRrn/q1P1rN2/6pP/1Q1R1R1B b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 d5 e3 b5 axb5 d3 Kd2 Kd7 Ke1 d2+ Ke2 Ke8 Kf3 e5 Ra4 d4 Kg2 d3 Ra6 e4 Ra1 Bc5 f3 Bd4 exd4 e3 Be2 Bf5 Bf1 Be4 fxe4 Qh4 Qg4 Qe7 Qd1 Qd8 Kf3 Kf8 Kg4 g5 Kf5 Kg7 b4 a5 e5 f6 Ke6 a4 d5 g4 d6 e2 h6+ Kh7 Kf7 e1N e6 g3 c3 Na6 d7 Qa5 d8Q Rb8 e7 Qc7 b6 Qd7 b5 Qe6+ Ke8 Qh3 b7 Nc2 b6 Ne3 Bg2 Qh4 Na3 Nf5 Nc2 Qh3 Be4 Qg2 Nf3 Qg1 Nb4 Ra8 b8R Qf2 b7 Kg6 h7 Kh6 Qb3 Nh4 Qc7 Qc5 Ba3 d1Q Qb1 d2 Rf1 Qf5 Qc4 Qb3 Qf7 d1Q Rd8 Nb8 Rd4 Ra6 Rc4 Re6 Rd4 Na6 Bc1+ Qf4 Be3 Qa3 Bg1 Qc2 Rdd1 Qcd2 Bd4 Qf5 Ra2 Qdf4 Raf2 Qc7 Nd2 Qce5 Rf4 Qd6 Bh1 g2 Nf3 Qc6+ Kf8 Qb6 e8B Re3 Bc6 Qc7 Be4 Qd6+ Ke8 Ne7+ Qg8 Kh5 Qf8 Rg8 h8R+ Kg6 Qc1 Rg7 Qb1 Nc8 Rg8 Kh6 Qf7 Rg4 Qh5+
nkR4Q/3R1rQ1/4p2K/1rr2P2/qR2p3/B1p1Q2P/2qbPQ1r/BN2N3 b - - 0 1 illegal: No possible last move, all moves rejected
2bNk1q1/1B3RP1/5p1B/bNn1N3/Qp2pPR1/4RP1b/1KRqr3/2Q3b1 b - - 0 1 legal: proof: h4 a5 c4 b5 a4 d5 cxd5 g5 hxg5 Nd7 b4 Ne5 f4 Nf3+ exf3 Rb8 Ra2 axb4 Ra1 b3 Be2 b4 Bf1 Rb5 axb5 Bh6 Be2 Bg7 Bf1 Bf8 d4 h5 Kd2 c5 g4 e5 d6 h4 g6 c4 b6 h3 d5 b2 Kc2 h2 d7+ Ke7 g7 e4 b7 c3 b8Q Nh6 g8R Qb6 d8R Bg7 g5 Bf6 d6+ Ke6 d7 Ke7 g6 Qa5 Qa7 Qb6 Ne2 Qe6 Qa4 Nf5 Nd4 Nd6 Rdf8 Nb7 d8N Nc5 Nb5 Qd6 N1a3 Qd2+ Kb1 c2+ Ka2 Be5 Nc4 Bc7 Ne5 Ba5 Be2 b1B+ Kb2 Ba2 Re1 Bae6 Ra2 h1Q Bd3 Bf5 Re3 Qh7 Bc4 Bh3 Bd5 Qg7 Bb7 Rh5 Qh1 Rg5 Qf1 Rg2 Qd1 Re2 Qf1 Qd5 Bd2 Qd7 Bc3 Qd2 Qc1 Qh8 Nec6+ Kd7 Bg7 f6 Ne5+ Ke7 Bh6 Qg7 Rh8 Qg8 Rf7+ Ke8 g7 Qd5 Bg5 Qd2 Rh4 Qd1 Rg4 Qd2 Qd1 c1B+ Ka1 Re1 Rc2 Re2 Bh6 Bb2+ Ka2 Ba1 Qc1 Bd4 Rb3 Be3 Kb2 Bg1 Re3
qQRB3Q/pR1p2k1/1n6/3nP1NB/3PP1K1/b2BN2r/q3NBp1/1n5n b - - 0 1 legal: proof: b4 b5 g4 e5 f4 g5 a4 f5 axb5 c5 Nh3 cxb4 Ng1 Na6 fxe5 f4 h3 Bb7 Ra2 Be4 Ra3 Bf5 gxf5 g4 Ra1 g3 Bg2 Rb8 Bf1 Rb6 Ra5 Rg6 Ra1 Rg4 hxg4 Be7 Rh5 Bc5 Rh1 Bf8 e4 Kf7 Ke2 h5 Kf3 g2 c4 h4 d4 b3 g5 b2 f6 h3 g6+ Ke6 c5 h2 c6 Nh6 g7 Kf7 g8B+ Kg6 f7 Qb8 c7 Bb4 c8N Ng4 f8B Qd6 b6 Qc5 b7 Qd5 b8Q Qa8 Be3 Bc5 Bf7+ Kh7 Bh5 Nh6 Bd3 Nc7 Bf2 Qb7 Ne2 Nf5 Kg4 f3 Na3 b1N Nd6 Nd5 Nc2 Qa8 Be7 Nb6 Bd8 Ba3 Ne3 Ne7 Nf7 Ned5 Ng5+ Kg7 Qc2 Rh6 Rc1 h1N Qcc8 Rh7 Rc7 Rh8 Rb7 Rh6 Bh4 f2 Bg3 f1Q Bf2 Rh7 Ra2 Qc1 Rc2 Qd2 Bg6 Bb4 Qc4 Ne7 Qe6 Ned5 Rc8 Ba3 Qe8 Rh3 Bh5 Qa2 Qh8+
1RB2Q1k/3R2N1/b2R4/pPp1Q3/1pP1N2R/2B2bb1/KPb1B3/3br1rq b - - 0 1 illegal: No possible last move
1k1BN1b1/1P2QbpR/2Q1nnR1/1p3K2/1qB2P2/3B4/nbBpRP1n/5N2 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 f5 e3 b5 a5 f4 exf4 Bb7 Ke2 Ba6 Ke1 Bc8 b3 Rh6 b4 Rb6 axb6 a5 Qf3 a4 Qd1 Ra5 bxa5 Ba6 Qf3 Bb7 Qd1 Bc8 Kd2 d5 Kd3 Kd7 h4 e5 c4 a3 c5 a2 c6+ Kd6 c7 Be6 c8B Bg4 a6 Ne7 a7 Nbc6 a8B Na7 h6 Nac6 h5 Ng6 h7 Qe7 h8Q Be6 h6 Bg8 h7 Nb8 Nc3 Nd7 Bd2 Nf6 Qe2 e4+ Kc2 e3 Kd3 Qe8 Be6 Qe7 Re1 a1N Nf3 Nb3 Rh6 Bf7 Bf5 Bg8 Nh2 Nc1+ Kc2 Na2 Kd3 Qe6 Bc6 Qe7 b7 Kc7 Ne4 Kb8 Ba5 Qc5 Be6 Bd6 Bd8 Nf8 Bcd7 Be5 Nd6 Qb4 Bc8 Bf7 Ne8 Bg8 Rg6 Bf7 Rc1 Bg8 Qe1 e2 Bf5 Bf7 Bce6 Bg8 Qd2 Bf7 Rc2 Bg8 Qe3 e1N+ Ke2 Nf3 Kd3 Qa5 Qe1 Bf7 Qb4 Bg8 Qe7 Qb4 Ke2 d3+ Ke3 Bc3 Be2 Bb2 Nf1 Ne5 Bd1 Neg4+ Kf3 d4 Re2 d2 Bdc2 d3 Bc4 Ne6 Qc5 Ne4 Qc6 Nh2+ Ke3 Bf7 Qf8 Bg8 h8R Nf6 Rh7 Bf7 Bb1 Bg8 Bb3 d1B Qe7 d2 Bfd3 Nf8 Bf7 Bb3 Bbc2 Nhg4+ Kf3 Nh2+ Kg3 Be6 Kh4 Bd5 Kg5 Bb3 Bd5 Bc4 Kf5 Bb3 Bf3 Bbf7 Bd5 Ne6 B5c4
1bBQ3R/b5p1/K1N4q/1NN3NP/2nQR3/k1pqRqp1/2P3P1/n4B1q b - - 0 1 legal: proof: d4 c5 a4 b5 axb5 a5 Bf4 h6 Bg3 c4 Bh4 Ra6 Bf6 Rc6 Bg5 Rc5 dxc5 hxg5 e4 e5 f3 d5 Qd3 d4 Qd1 Be6 Ra2 Rh4 Ra1 Bd5 exd5 e4 Kf2 e3+ Ke1 Re4 fxe4 Qd7 Ra2 Qc8 Ra1 Qd8 Ke2 Ke7 h4 f5 b4 c3 Kd3 f4 Kc4 a4 b6 f3 Kb5 a3 e5 f2 h5 a2 e6 d3 b7 e2 c6 Kd6 c7 e1B c8B d2 e7 g4 e8Q g3 Nh3 Qg5 Ka5 Na6 b8N Nf6 b5 Kc5 b6 Bd6 b7 Ng4 Na3 Ne3 Nb5 Qh6 Nc6 Bb8 Qg4 d1Q d6 Qf3 d7 Bd2 Re1 a1Q+ Qa4 Qad1 d8R Qde2 Qf4 Qd3 Ng5 Ba7 b8N Nc4+ Ka4 Be3 Rh4 Bd4 Qd2 Be5 Rhe4 Bd6 R1e3 Be5 Be2 f1Q Qh8 Qh1 Bf1 Nb4 Qe8 Na2 Qd7 Bc7 Rh8 Nc1 Qd8 Nb3 Qf2 Na1 Qd2 Nb6+ Ka5 Nc4+ Ka6 Bd6 Ne7 Kb4 Nd7 Bdb8+ Nc6+ Ka4 Qd1 Qde2 Qd4 Qd3 Nd6 Ka3 Nc5 Ka2 Nb5 Kb2 Nd6 Ka3 Nb5+
1k1R4/Np2P1q1/Q2K2N1/rpPn2p1/1P2N2Q/nB1R1rBr/4q1R1/4N2r b - - 0 1 legal: proof: f4 e5 fxe5 f5 d4 c5 dxc5 a6 g3 Ra7 Qd3 Ra8 Qb5 axb5 Nh3 d6 Ng1 f4 h3 f3 h4 Bf5 h5 Bg6 Kd1 Be7 Kd2 Bg5+ Ke1 Bf4 gxf4 Bf7 Bd2 g5 Bc1 Bg6 hxg6 Qb6 Nh3 Qc7 Ng1 Qd8 Kd2 Kd7 Kc3 Kc8 Kb4 h5 c4 d5 a4 d4 e4 f2 c6 h4 Kc5 d3 b4 d2 g7 d1R a5 h3 c7 h2 e6 Qf8+ e7 Qf5+ e5 Rd8 e8R Qd3 f5 Qg3 e6 Qh3 f6 Qa3 f7 Rh5 f8N Qf3 e7 Qd3 a6 Nf6 g8Q Nd5 a7 Rh7 Bf4 Qe4 Nd2 Nb6 Qh8 Qc2 Ra3 Rh4 Ng6 Qd3 Ngf3 Nd5 Ne1 Nd7+ Kd6 Qd4 c5 Rh5 Bc4 f1Q Bg3 Rh3 Bb3 Qe2 Ne4 Qg7 Rg1 h1R Rg8 Rf8 Rg2 N7b6 Qh4 Rb8 a8Q Nc4+ Ke6 Qf2 Rh8 Qe2 Qa6 Ra8 Rg8 Nce3 Kd6 Nc2 Ra2 Na3 Rd2 Qf7 Rh8 Qg8 Rd3 Rf3 Qc6 Ra5 Qa6 Qf8 Ke5 Kd7 c8N Kc7 Na7 Kb8 Kd6 Qg8 Nc8 Qf7 Rd8 Qg7 Na7#
2kBnnR1/1bpB1B1n/q7/PpNQ1R1P/Q5p1/1P2K1NQ/5Bq1/n2q4 b - - 0 1 illegal: No proof kernel
1N1kn2K/2p2q1R/QB1PRp2/B4b2/r1Bnr1pN/RP1R1p2/5P2/1n5Q b - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 h5 gxh5 b5 Na3 b4 Nb1 b3 axb3 Bb7 Ra4 Ba6 Ra1 Bc8 Ra3 e5 Ra2 a4 Ra1 a3 Qc2 a2 Qe4 Bb4 Qf4 Ba3 bxa3 exf4 d4 g5 Kd2 g4 Kc3 Qd6 h4 Rh7 e4 Rh8 h6 Ra7 e5 Qe6 a4 Qd6 h7 Nh6 e6 Nf5 e7 Ng7 h5 Na6 h6 Nf5 a5 Qf6 d6 Bb7 Be3 Ng3 Ne2 Be4 Nd2 Qg6 d5 Bf3 Kd4 Rg8 Ke5 Kd7 h8B Nb8 e8R Nh5 a6 Be4 h7 Bf5 Bb6 Rb7 a7 Qh6 a8Q Be6 Qa6 Rf8 Nd4 Qg6 Bc4 Qg8 N2f3 Ra7 Nh4 f3 Nc6 Bf5 Re6 Ng7 Kf6 Re8 Ba5 Rb7 Rh2 Rb4 Rh3 Re7 Bb6 Ra4 Rh2 Ke8 d7+ Kf8 d8R+ Ne8+ Ke5 Qg6 Bf6 Qg7 h8Q+ Qg8 Qh5 Qg6 Bg5 Qh7 Bd2 f6+ Kf4 Qf7 Bda5 Nd7 Rh3 Ne5 Nb8 Nc6 Rhh1 Nd4 Rd7 Rb4 d6 Ra4 Rhd1 Qh7 Rd3 Qf7 Rc1 a1N Qh7 Nac2 Ra1 Na3 Qh5 Nb1 Ra3 Qg8 Qh7 Rg7 Qh5 Rg5 Rh7 Rg7 Ng2 Re7 Qh1 Ng7 Nh4 Ke8 Rde3 Kd8 Rc3 Bc2 Rd3 Ne8 Ke4 Nc6 Kf5 Qf7 Re3 Re4 Re1 Qf8 Kg6 Qf7+ Kh6 Nd4 Ree3 Rf4 Re6 Re4 Rg7 Nc3 Kh7 Nb1 Kh8 Re2 Rc3 Bf5 Rd3 Re4 Rh7
1BN1r1B1/p3P2p/RQpPn3/N3R1n1/1p1n4/1bQq4/1b3P1K/1kQ1QR2 b - - 0 1 illegal: No possible last move, all moves rejected
Qq4r1/1q1Q1p1R/n2BP2p/1R1B1B1K/1QpQ4/r3P3/p3P2b/1N2Nb1k b - - 0 1 legal: proof: c4 d5 d4 b5 a4 g5 axb5 e5 dxe5 Nd7 cxd5 Ndf6 h3 Ng4 h4 Ne3 fxe3 gxh4 Kf2 Ke7 Kf3 a5 g4 c5 b4 h3 d6+ Ke6 b6 a4 b7 c4 b8Q a3 g5 Kf5 d7 h2 e6 Qc7 d8Q Qa5 b5 Qe1 g6 Nf6 b6 Bd6 g7 Qd2 g8B Ne4 b7 Nc5 Qd7 Qb4 Bg2 Kg5 Qd3 Kh4 Qd4+ Bf4 Ra2 Ra7 Rd2 a2 Ba3 Qb3 Bb4 Ra3 Qa8 Na6 b8Q Qb2 Bd6 Bb7+ Qd5 Qb4 Rb2 Bc6 Qb5 Qb3 Qc5 Qb8 Rb5 Be5 Qb4 h6 Bh7 Rg8 Bf5 Bd4 Kf4 Bb7 Bge4 Be5+ Kf3 Bg3 Qd4 Be5 Nh3 Bc6 Rg1 h1Q+ Rg2 Bh2 Nf4 Bb7 Nd3 Bd5 Ne1 Bb7 Bg6 Kh3 Bh7 Rg3+ Kf4 Rg8+ Kf5 Bd5 Rg7 Bc6 Bg6 Bb7 Rh7 Bc6 Bd3 Bg2 Be4 Bf1 Bb7 Bg1 Kf4 Kh2 Bf5 Qd5 Bc6 Kh1 Bb7 Rf8 Kg4 Bh2 Kh4 Rg8 Kh5 Qc6 Nf3 Qcc8 Bd5 Qcb7 Ne1+
1R1NbBk1/Qn1r4/1N5P/2PpN2Q/6p1/r1B3NR/Pp1rp3/1Kb2nR1 b - - 0 1 legal: proof: e4 c5 d4 a5 dxc5 f5 exf5 a4 g4 a3 f6 Ra4 bxa3 Ra6 a4 Ra7 a5 Ra8 f4 h5 g5 Ra6 g6 Ra8 f5 Qb6 Ba6 Kd8 Be2 Qb3 Bg4 Qf7 gxf7 hxg4 Kd2 g5 c4 b5 Kc2 e5 h4 d5 a6 b4 a7 e4 c6 e3 c5 g3 h5 g2 h6 Bd7 Ne2 g1R Ng3 Rg2+ Bd2 Bd6 f8N Ke8 c7 Kf7 c8N Be8 Nb6 Bf4 Ne6 Ne7 Rh3 Rh7 Na3 b3+ Kb1 b2 Nac4 Kg8 Ne5 Nbc6 Qh5 g4 Nd8 Na5 Bc3 Nb7 f7+ Kf8 Rh2 Rd2 Rh1 e2 Rh3 Rb8 a8Q Bg5 Qa7 Ra8 Qb8 Ra3 Qc7 Ng6 Qb8 Nh4 Qa8 Nf3 Qa7 Ke7 f8R Nh2 Rh8 Nf1 Rf8 Rg7 Rh8 Rg8 f6+ Kf8 f7 Bf4 Rh7 Rg6 Rg7 Rd6 Rg6 Rd7 Rc6 Rd4 Rc8 Bc1 Rb8 Rd2 Ne6+ Ke7 f8B+ Kf6 Ng6+ Kf7 Nd8+ Kg8 Ne5 Rd3 Kc2 Bg5 Rd1 Bc1 Kb1 Rd2 Re1 Ne3 Reh1 Nf1 Rg1
n3R2B/7P/Qk2Np2/4prB1/KB1pb1P1/n2Br2R/2Pp2N1/1b1RnQ2 b - - 0 1 legal: proof: e4 c5 g4 a5 b4 h5 gxh5 c4 d3 cxd3 bxa5 Rh6 Bg5 Rh7 Bc1 Rh8 Kd2 g5 Bg2 d5 Nf3 d4 Rf1 g4 Ke1 g3 Rh1 Bg7 Bf1 g2 Ng1 Qd5 exd5 Be5 Qd2 Bf4 Qd1 Bg3 fxg3 Bg4 Kd2 Bd7 Ke1 Bc8 Kd2 Kd7 h4 Kc7 a4 b5 d6+ Kb7 d7 e5 d8B b4 g4 f6 h6 b3 h5 b2 a6+ Kc6 a5 Bb7 a7 Bc8 a6 Kc5 h7 Bb7 h6 Bc6 Na3 b1B Be7+ Kb6 Nc4+ Kc7 Ne3 Ba4 Bb4 Nc6 Ne2 g1N Ng2 Rc8 a8R Na7 Rh3 Bc6 Nef4 Kb6 Ne6 Nb5 a7 Be4 Be2 Rc3 Qf1 Rb3 Re8 Ne7 a8Q Nc8 Qa4 Rg8 h8B Rg5 h7 Nf3+ Kd1 Rh5 Bg5 Ne1 Kc1 Na3 Qa8 Rc3 Kb2 d2 Ba6 Re3 Bd3 Nd6 Kb3 Ndb5 Qc8 Nc7 Ka4 Na8 Qc4 Ba2 Rd1 Bb1 Bf4 Rf5 Bg5 Ka7 Qc8 Kb6 Qa6#
4n1R1/NPPP3Q/r5b1/n1K2p2/b4R1p/1r2Q3/BN3pkp/B2BN1Nn b - - 0 1 illegal: Other
3rnn2/2NQ1pR1/Q5N1/7q/b1npP1p1/1P1R2qB/RPp2RN1/2k3BK b - - 0 1 legal: proof: c4 a5 f4 b5 g4 c5 d3 h5 gxh5 e5 d4 exf4 cxb5 c4 Kf2 Bc5 dxc5 Ra6 Ke1 Re6 Nd2 Re3 Nb1 Rb3 axb3 Qc7 Qd3 Qb6 Qd1 Qd8 Kf2 Ke7 Kg2 Ke6 h4 Kf5 e4+ Ke5 h6 d5 h7 g5 c6 g4 b6 a4 c7 c3 b7 c2 h5 a3 h6 a2 Nf3+ Kf6 Ne1 Kg5 Be3 Nf6 Bg1 Ne8 Nc3 Bd7 c8Q Ba4 Nb5 Qd6 Nc7 Nd7 b8R Nf8 Rh3 f3+ Kh1 Kf4 Qa6 f2 Rd3 Rg8 Bh3 f1N h8R Ne3 h7 Nc4 Ra8 Qg6 Rb1 a1Q Ra7 Qh5 Ng2+ Kg5 Rc1 Qa3 Ra8 Qd6 Qd2+ Qf4 Rf1 Qe3 Rf2 d4 Qb4 Qg3 Qbd6 Rg6 Qd7 Rb6 Ra7 Rb8 Ne1 Rd8 Rg8+ Qg6 Rh2 Kf4 h8N Qh5 Rg7 Ne3 Ng2+ Kf3 Na8 Ke2 Nc7 Nc4 Ng6 Qh6 Rf3 Kd1 Rd3+ Kc1 Qac6 Bb5 Ra2 Ba4 Qa6 Qh5 N2h4 Qg5 Rf2 Qh5 Ng2
2Br4/B4R2/pK5R/pQ4Pb/P1R3N1/1RpBN2b/1rPp2rq/2k2Q1b b - - 0 1 legal: proof: e4 e5 d4 b6 dxe5 g6 f4 Ba6 e6 Ke7 Qd5 Bc8 Qa5 Kd6 e5+ Kc6 e7 bxa5 e6 Bg7 g3 f5 g4 Be5 fxe5 f4 Bd3 g5 Be2 Nh6 Bf1 Nf5 h3 Na6 gxf5 g4 h4 Nc5 Be3 Ne4 Bc1 Ng5 hxg5 Re8 Rh4 Rg8 Rh1 Rh8 Kf2 Kd5 e8Q Ke4 a4 c5 b4 d5 e7 h5 e6 f3 f6 h4 b5 a6 f7 h3 f8Q c4 b6 d4 b7 h2 b8R c3 Rb3 d3 Nd2+ Kd4 Nh3 Rb8 Nc4 Rb5 Ne3 Rb4 Qb5 Bd7 e8B Qf6 e7 Qh6 Be2 Be6 Bd7 Bf7 e8R Bh5 Rc8 Rg8 Rf1 h1B Rc5 Qh7 Bc8 Rh8 Qf5 Rd8 Ba3 d2 Bd3 Qc7 Rc6 Qh7 Rh6 Qh8 Rae1 g3+ Kg1 g2 Nf2 Qe5 Nfg4 Qh2+ Kf2 g1R+ Ng2 Be8 Re7 Bg6 Rf7 Bh5 Re1 Qf4 N2e3 Rg2+ Kf1 f2 Ke2 Qh2 Reb1 Rc4 Bd6 Rc6 Bb8 Rb6 Ba7 f1B+ Kf3 Rg3+ Kf4 Bh3 Rf1 Qg1 Rc7 Rg2 Rc5 Rb7 Qf7 Rb8 Kf5 Qh2 Ke6 Rg8 Kd7 Rd8+ Kc6 Rb7 Bc4 Rb8 Qf8 Ke4 Rf7 Rb7 Bf5+ Kf3 Bcd3 Rbb8 Rc4 Rb7 Bde4+ Ke2 Bc8 Ke1 Bd3 Rb8 Nf1 Kd1 Nfe3+ Kc1 Qd5 Rb4 Qb5 Rf2+ Kb6 Rg2 Ra3 Rb2 Rb3 Ra2 Qh8 Rb2 Qf6 Qg1 Qf3 Qh2 Qf1+
K1b1k3/1Q6/5p1R/PNnqp1p1/4qpP1/1q3Q2/QPN1RR1B/b1B2nR1 b - - 0 1 illegal: Other
bRQ4N/1np1N1K1/2N2PQ1/R3P3/1p1bpnB1/B2NBp2/1q4qP/qk6 b - - 0 1 legal: proof: c4 h5 g4 b5 gxh5 g5 e4 f5 f4 d5 cxd5 a5 b4 Ra6 e5 axb4 Qe2 Rf6 exf6 e5 Qf3 e4 Qd1 Rh7 Kf2 Re7 Ke1 Re5 fxe5 Bh6 Qa4 Bg7 Qd1 Bf8 Kf2 Kd7 Ke3 b3 d4 b2 a4 g4 Kf4 g3 Kg5 f4 Kg6 g2 a5 f3 h6 Be7 h7 Qe8+ Kg7 Nc6 h8N Na7 a6 Bc5 d6 Kc6 d5+ Kb6 d7 Qe6 d8B Bd4 d6 Kc5 d7 Kb4 Ne2 Ne7 Ra5 Qa2 Nbc3 b1Q Nd5+ Kc4 Be3 Qba1 Nc1+ Qe2 Nd3 Nac6 a7 Ng6 a8Q g1Q Be7 Qeb2 d8N Qgg2 Ba3 Bb7 Qc8 Ba8 Ne7 Kc3 Qe1+ Kc2 Qg3 Nf4 Qg6 Kb1 Rg1 Nb4 Ndc6 Na6 Rh1 Nc5 Rg1 Qge2 Bh3+ Qf1 Rg2 Nb7 Bg4 Qh1 Rc2 Qg2 Rc5 b4 Rcb5 Nc5 Rb8 Nb7 Rc5 Qba2 Rb5 Qa2b2 Ra5
4n3/5pNB/1rQ1p1rQ/nPp1b1PR/P5r1/4BR1K/2p1rN2/k1QBB3 b - - 0 1 illegal: No proof kernel
R1Nk1B2/P6b/1P2n1p1/n1b1P2B/KpN5/2pNpQr1/b2QQ2b/4R2N b - - 0 1 legal: proof: e4 a5 c4 d5 g4 dxe4 b4 h5 bxa5 b6 gxh5 b5 f4 e5 Bh3 e3 Ke2 e4 Ke1 b4 Bg2 Qd7 Bf1 Qb5 cxb5 Ra6 Qg4 Re6 Qd1 Re5 fxe5 Be6 Ke2 Bh3 Ke1 Bc8 d4 c5 h4 f5 a4 c4 a6 e2 Kd2 e1B+ Kc2 f4 a5 c3 Kb3 f3 h6 f2 b6 Nc6 h7 Bf5 a7 Be6+ d5 Nh6 a8Q+ Nd8 a6 Bh3 d6 Be6+ Ka4 Bd5 d7+ Ke7 h5 Nf5 h6 Ba2 Na3 Bd2 Qe2 Bd5 Nc4 Nh4 Nh3 Nf7 d8Q+ Ke6 a7 Rg8 h8N Bd6 h7 Nf5 Ng6 Bf4 h8N Ne3 Ne7 Ng5 Nhg6 Bh2 Nc8 Bc5 Ngf4+ Kf7 Nd3 Ne6 Bg2 f1B Bf3 Bg2 Qg5 Ke8 Bh5+ Kd7 Qf4 Kd8 Nhf2 Bh3 Bd2 Bf5 Rae1 Bh7 Rhf1 g6 Qc6 Rf8 Nh1 Rf7 Qh6 Rf3 Bc1 Rg3 Rf3 Nc2 Qhd2 Ncd4 Rf7 Nb3 Rg7 Na5 Rg8+ Nf8 Qb7 Be6 Qf7 Bd5 Qff3 Bf7 Qb2 Be6 Bh6 e3 Qbd2 Bd5 Na3 Ba2 Nc4 Kd7 Bg7 Ne6 Bf8 Ke8 Rg7 Kd8 Rb7 Ke8 Rb8 Kd8 Ra8
rNrr4/PQRP1p2/pb3Q2/p2pB2n/N1kP2rn/5R2/8/QBKR1R2 b - - 0 1 legal: proof: f4 h5 g4 e5 gxh5 d6 fxe5 Bg4 c4 Nf6 c5 Ng8 c6 Bd7 cxd7+ Ke7 a4 b6 b4 Ke6 a5 bxa5 b5 Ke7 b6 a6 Ra4 Qc8 Ra2 Qb7 Ra1 Qa7 bxa7 Rh7 Bg2 Rh6 Bf1 Rh8 h4 Nf6 d4 Ke6 Kd2 Kd5 e4+ Ke6 h6 g5 h5 c5 h7 g4 h6 g3 Nf3 d5 Bd3 g2 Nc3 g1R Na4 Rg5 Rf1 Rhg8 h8Q c4 h7 Ke7 e6 Kd6 e5+ Kc6 e7 Kb5 e6 R5g6 Ne5 Ng4 Nc6 Nf2 e8Q Ng4 e7 R6g7 Qc8 Nf6 Rf3 Rg6 e8R Bc5 Re1 Rg4 Qb7+ Bb6 Qg7 Rf8 h8R Nh5 Qf6 Rfg8 Bh7 c3+ Kc2 Re8 Ref1 Rf8 Kb1 c2+ Kb2 Rfg8 Bf4 c1R Be5 Rc5 Qb1 Kc4 Kc2 Rf8 Qb2 Re8 Rad1 Reg8 Qa1 Re8 Nb4 Nc6 Kc1 Ne7 Nc6 Nf5 Nb8 Nh4 Bb1 Rf8 Qf4 Rfg8 Rh6 Rcc8 Rc6+ Kb4 Rcc3 Rgd8 Qf6 Kb5 Rc7 Kb4 Nc5 Kc4 Na4+
Kb4q1/2pkBqqQ/1p1Np1Rp/Q2rR1B1/5B1P/3n3P/5P1N/N5qB b - - 0 1 legal: proof: d4 f5 e4 Kf7 exf5 Nc6 d5 Ke8 d6 Nb8 c4 e6 Nf3 Nc6 Qd2 Nce7 dxe7 d5 Qd1 d4 Ng1 Kd7 b4 a5 Ke2 axb4 Ke1 Ra5 h3 Rd5 cxd5 Ke8 Qa4+ Bd7 Qd1 Bb5 h4 Kd7 Rh2 Be2 Rh3 Bg4 Rh1 Bh3 gxh3 Qc8 Ba3 Qe8 Bc1 Qd8 Kd2 g5 Kd3 h6 Kc4 g4 Kb5 d3 e8N d2 a4 b3 a5 g3 a6 g2 a7 b2 a8Q Bb4 f6 Ba5 d6 Bc3 f7 Bd4 f8B Qf6 Qa5 Qg7 Be7 Qg6 Na3 Be5 Qc2 d1Q Bf4 Qf5 Nf3 g1Q Nh2 Nf6 Bg2 Qdg4 Re1 Bd4+ Re5 Nd5 Bf3 Qfg5 Qh7 Qg7 Nc2 Ba7 Na1 b6 Ka6 b1Q Kb7 Qbg6 Ka8 Nb4 Bd5 Q6f7 Bg2 Qf1 Rg1 Bb8 Bh1 Nd3 Rg2 Qg1 Beg5 Kc6 d7 Rg8 d8B Kd7 Bde7 Rf8 Nd6 Rd8 Bgf6 Q4g6 B6g5 Qfg8 Rg3 Q6f7 Ne4 Kc6 Rg2 Rd5 Nd6 Kd7 Bgf6 Nb4 Rg6 Nd3 B6g5
3Q1RrB/5P2/B3pBp1/P1r1Qk2/2R1p2p/1rbqrNB1/2r1P2K/2N1N3 b - - 0 1 illegal: No proof kernel
2B5/3Kp1kb/1p1N1p2/5QRp/Bbn2q2/N1B2N1p/2PP1rPn/1Q1BR3 b - - 0 1 illegal: No possible last move, all moves rejected
n1Nb1Rr1/Q3B1N1/4QK1p/Rp1b1P2/1pP2b1P/2NN2p1/1k1npRB1/8 b - - 0 1 legal: proof: e4 d5 exd5 a5 g4 f5 gxf5 Qd6 b4 axb4 Na3 c5 Nb1 c4 Bh3 Qg3 Bf1 Qb3 cxb3 Kd7 Qf3 Kd8 Qd1 Ke8 Ne2 b5 Ng1 c3 Qe2 Ra7 Qf3 Rc7 Qd1 Rc4 bxc4 Bd7 Bg2 Be6 Bf1 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 a4 g4 f4 c2 h4 e6 f6 g3 f7 h6 a5 Na6 f5 Be7 f8R Rh7 Qe1 Rh8 Rh2 Rh7 Ne2 Nc5 a6 Rf7 a7 Na6 a8N Bb7 Bg2 Rf6 Nb6 Rf7 Nf4 Bc8 Ra5 Bb7 Nc3 Rf6 Nd3 e5+ Ke4 Bd8 Nc8+ Kc7 Qf2 Rg6 Qa7 Kd7 Bb2 c1B Ba1 Nc7 Bb2 Rc6 d6 Na8 Kd5 e4 Ke5 e3 Ba1 Ne7 Kf6 e2 Bb2 Rc7 Ba1 Bd5 Bb2 Kc6 d7 Rb7 Ba1 Bc7 d8Q Ng6 Qe7 Ne5 Bb2 Nf3 Qe6+ Bd6 Ne1 Rd7 d4 Rg7 Nd3 Be3 Bc1 Rg8 Bd2 Bf2 Bg5 Bg1 Bf1 Be3 Rf2 Bf4 Bh3 Nd2 Bg2 Be4 Qe5 Bc7 d5+ Kd7 d6 Kc6 d7 Bd5 Ne1 Bb6 d8N+ Kc5 Qe6 Kd4 Nd3 Bc7 Nb7 Bf4 Nbc5 Bbc7 Kf7 Bb6 Be7 Bd8 Kf6 Bfc7 Nf4 Bb8 Nh5 Bf4 N5e4+ Kd3 Nc5+ Kc2 Ng7 Kb2 Nd3+
b1b1NK1b/1qR3pp/N5Rn/1pp3Pk/1BR1Q3/3B1p2/1pP2P1B/1R1Q4 b - - 2 3 illegal: Other
1Nn2K1n/b6Q/2R1rkN1/BbQ5/R4b2/2QnRQPB/2P1P2q/q1qr1r2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 d5 b4 a5 e6 f5 g6 h5 b6 f4 b7 h4 g3 h3 b5 f3 g7 h2 b6 a4 Na3 f2 Nf3 Nc6 b8R Ra6 b7 Ne5+ Kd2 d3 Ke3 d4+ Kf4 d2 Kf5 d3 Bg2 f1R Qe1 d1N Qc3 d2 Nb5 a3 Na7 a2 Bh3 Nf2 Nh4 d1Q Bd2 Nf7 Kg6 Qc1 Qf3 Rd1 Ba5 Nd3 Ra8 Qc7 b8Q Qc3 Qb5 Bd7 Qc5+ Rd6 Rf1 h1Q Rc8 Bb5 Rc6 Qh2 Rf2 Rh5 Rf1 Rf5 Rf2 Ngh6 g8Q Nh8+ Kh7 Qe5 Ng6+ Kf6 e7 Re6 e8Q Bd6 Qc8 N6f7 Qc7 Rf4 Qgc8 Qeb2 Kg8 Be5 Q7b7 Nd6 Kf8 Qd4 Qcc7 Nc8 Qh7 Rf5 Qbc7 Bf4 Qc3 Qe5 Qb6 Qd4 Qbc5 Qe5 Ra6 Qd4 Nc6 Qe5 Nb8 Qd4 Rb1 a1B Rb4 Bb2 Ra4 Ba3 Qd6 Bc5 Rc6 Ba7 Qdc5 Qe5 Qfd5 Qd4 Rf3 Qe5 Re3 Qd4 Qe1 Qda1 Qdh1 Be5 Qeb4 Rff1 Qf3+ Bf4 Qbc3+
3r2Qr/6bR/R1BN1BPn/P2r3b/4q2Q/1Qq1QbN1/1B2P2n/2q1knK1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 g4 f5 d4 c5 a4 b5 e6 Kd6 a5 h5 g6 h4 g5 b3 e7 c4 e8Q h3 g7 b4 g6 f4 Qd2 f3 Qd1 c3 Bg5 h2 Nh3 c2 Qd3 c1Q Qa6+ Nc6 Qe3 b2 Qb6 b3 Bg2 Qf6 Nf4 Nh6 g8Q Bg4 Na3 b1R Nh5 b2 Ng3 Rd8 Qbb3 Ne5 Ra2 Qg7 Bf6 Bh5 Ra1 Qgc7 Bg7 Q7c3 Nc4+ Kc7 d6+ Kc6 Rd1 h1B d7 Neg4+ Kg1 Nh2 Be5 Bg7 Nd6 Re8 Ra4 Rd8 Rb4 Ra1 Rb7 b1Q Ra7 Qe4 Ra6+ Kc7 d5 Ra2 Re1 Rd2 Nb5+ Kb7 d6 Rd5 Bf6 Qc7 Bb2 Q7c3 Ra7+ Kc6 Rd1 Ra8 d8Q Rc8 Qh4 Rd8 Qd3 Kc5 d7 Nf5 Ra6 Nh6 Qa2 Kb4 Qe3 Be5 Nd6 Bg7 Qb1 Kb3 Qa2+ Kc2 Rf1 Q1d2 Rf2 Kd1 Qc4 Ke1 Qb3 Ra8 d8B Qdc1 Bf6 Rd8 Bh3 Bg2 Bg4 Bh3 Bd7 B3g4 Rg2 f2+ Kh1 f1N Bc6 Bf5 Kg1 Bh3 Rf2 Bg2 Rf5 Bh1 Re5 B1f3 Re7 Bf8 Rh7 Bg7 Qe6 Rb8 Qf7 Rbd8 Qg8
2bn3Q/1Q2q1P1/1K2R3/3bb1k1/B1r3q1/R2NRr2/1nrP2qP/nR1NB1N1 b - - 0 1 illegal: No proof kernel
bk3qn1/2rB1PRN/1N2K1B1/5B2/R2QbP1P/1RQ5/2q1rqrB/n3bn2 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 d5 Kd3 Kd7 Kd4 Kc7 Ke5 a5 c4 g5 f4 d4 b4 g3 h4 g4 f6 d3 c6 g2 f7 d2 c5 a4 Ba3 g3 Qe1 d1B Bd3 Bb7 Nh3 g1Q Nd2 g2 Ng5 Nd7+ Ke6 Qf2 b6+ Kb8 b5 g1Q Nh7 Bc2 Bg6 Be4 Nc4 Qc2 Qc3 Qgf2 Rhg1 Ra7 Rg4 Ba8 b7 Qe8 Nb6 Ndf6 Bc1 a3 Be3 a2 Rg3 Qf3 Bg1 Ng4 Bh2 Ne3 Rg2 Nf1 Qd4 Kc7 b8R Qe3 Rg3 Qef2 Rb3 Rb7 Rd8 Ra7 Rd5 Qd8 Rg5 Kb8 Rg1 Bg7 Rg5 Qf8 c7+ Kb7 c8B+ Kb8 c6 Rc7 Bd7 Be5 Rab1 a1N R1b2 Bd6 Ra2 Bb4 Ra4 Bd2 Bh5 Be1 Rg7 Nh6 Bg6 Rg8 Ke5 e6 Kf6 e5 Ke6 Bf3 Qc3 e4 Qd4 e3 Qc3 e2 Qd4 Ra7 c7+ Kb7 c8B+ Kb8 Bb7 Bh1 Bbe4 Rc7 Bef5 Bhc6 Nc8 Be4 b6 Ba5 b7 e1R Nb6 Re2 Nd5 Be1 Nb6 Rh8 Qc3 Ng8 Ng5 Rh5 Nh7 Rg5 Qd4 Rc8 Qc3 Rg2 Qd4 Kc7 b8Q+ Kd8 Qbe5 Rc4 Qa5 Kc7 Qac3 Kb8 Qd5 Rc7 Qdd4
1N2K2n/P2r1n1r/NNBN4/2bnR3/Qb1q4/1Q3Pq1/1P2bRkB/r2B1q2 b - - 0 1 illegal: No possible last move
2b1Nq2/1r3Q2/2KPB1r1/r2PBN1n/2bb1B2/2n1P1Qk/1R2n1b1/3RBRb1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 c5 Ke4 f5+ Ke5 g5 d4 a5 b4 a4 h4 a3 d6 f3 Kd5 g4 e3 g3 b6 f4 h6 g2 h7 a2 b7 c4 h5 c3 h6 c2 Bc4 f2 Bd2 c1N Qb3 f1B Na3 f3 Ne2 g1B Ng3 f2 Nf5 Ra6 Be1 Ne2 Rd1 a1R Nb5 Nc6 b8R Bg7 Nc7 Na7 Ne8 Nf6+ Kc5 Rf8 h8B Rf7 h7 Bg2 b5 f1B b6 Nh5 b7 Nb5 Qa2 Bf6 Bg7 Be5 h8B Ra5 Bh6 Bf6 Bf4 Nbc3+ Kb4 Qe7 Bg7 Qf8 Be6+ Kd8 Bh8 Rg7 Kc4 Rg6 d5 Bd4 Bhe5 Rb5 Qa7 Raa5 Ra8 Rb6 b8Q Rb2 Qg7 Rb6 Qba7 Rb7 Rb8 Rb6 Nc7 Rb7 Na6 Ke8 Qg8 Rd7 Rb2 Rb7 Qg7 Rf6 Qg3 Rg6 Bd7+ Kf7 Nc7 Rg7 Ne8 Rg8 Qf2 Kg6 Be6 Rgg7 Bh2 Kg5 Bhf4+ Kg4 Qh4+ Kf3 Qg5 Rg6 Qh4 Rbb5 Qc7 Rb7 Qf7 Bh2 Qf2+ Kg4 Rg1 Kh3 Rh1 Bf3 Rg1 B1g2 Rf1 Bg1 Rc2 Be4 Ra2 Nb5 Rb2 Bd3+ Kb4 Bc3+ Kc5 Bc4 Kc6 Bd4 Qd7 Nbc3 Qf7 Rg8 Qf3+ Rg3 Qf2 Rg6 Qg3+
1b4b1/3BPq1R/KQ2NP1k/N3brr1/5R1r/4BPN1/2QN3r/nrB1nn2 b - - 0 1 illegal: No proof kernel
3Q1KnB/3Prb2/r1BN1bP1/1QrP4/2q4n/2RN1nn1/RQN5/nb3N1k b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 Kf4 d4+ Ke4 g4 e5+ d6 a5 f4 h5 b4 a4 f6 a3 f5 c6 b6 a2 g5 h3 g6 h2 b7 h4 b5 h3 b6 Bg7 f7 Qe8 f8N Bf6 d7 Qf7 Kd6 c5 Ne2 Kf3 Ne6 e4 Nc7 e3 Na3 c4 Ne8 c3 Ng3+ e2 Bb2 Rh7 Nc2 Nc6 b8Q Nce7 b7 Qc4 Bg2+ Kf2 Rg1 e1N Bc6 h1B Nf1 h2 Rg3 Bd5 Qc1 Bf7 d5 h1N Qc7 Ra3 b8Q Nf3 Qb5 Ra6 Qd8 Bb7 Rh3 Kg1 Qb1 Ng3 Qc1 Bh8 f6 Bc8 Nb4 c2 Nd3 Bb7 Bc3 Bg7 Qcb2 c1R Be5 Be6 f7 Bf6 f8N Bf7 Ne6 Nef5+ Kc7 Rg7 Nd6 N5h4 Nd4 Rc3 Nc2 Kg2 Rc1 a1N Rh2+ Kg1 Rd2 Kh1 Bd4 Be8 Re2 Re7 Rg2 Bf7 Rd2 Bg5 Bh8 Bf6 Nce1 Rca3 Qa5 Rb3 Rc3 Ne2 Nc5 Rbb6 Qe8 Ra8 Qb1 Qg4 Ra2 Rb5 Qb2 Ng3 Qb8 Qe4 Kd8 Ba6 Qc7 Ra5 Qcc8 Be2 Qb8b7 Bd1 Ncd3 Rc5 Q7b5 Bc2 Qcb8 Bb1 Nc2 Ra6 Q8b6 Be6 Qc7 Qc4 Qcb6 Rh7+ Ke8 Re7+ Kf8 Bf7 Qd8
1bK2R2/b1P2N1b/QPR3b1/1Rn3P1/r1B2b2/1n1q1k2/n1Brr3/NQ2BR2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 c4 e4 b4 h3 g4 d3 c5 e3 f6 Kg6 b6 h2 b7 a4 c6 e2 f7 e1B b5 d2 Ba3 Nh6 Be2 Bg3 Ke5 d5 Bc5 a3 Bd3+ Bf5 Bf2 a2 Bc2 d4 Be1 d3 Na3 Ra4 Rc1 Bc5 f8Q Na6 b8R Ba7 Nh3 Nc5 Rf1 h1B c7 Bhe4 Qe2 d1N Rb7 Qd7 Qb8 d2 Qd3 Qh7 Kd6 a1B Qa8 Bb8 Qa6 Rc8 Qb3 Bg7 Qb1 Nc3 Rb6 Bd4 Rb7 Kg7 g6 Kf6 g7 d1R g8B Rd2 Ng5 Re8 Bc4 Bg6 Nf7 Na2 g5+ Kf5 Rb6 Kg4 Rc6 Nd3 Kd7 Bda7 f5 Bf4 f6 Nf5 b6 Nd4 Rc5 Re6 Rb5 Nc5+ Kc8 Bd3 Bd1+ Ree2 Nc2 Ndb3 Na1 Bde4 Bc2 Qh3 Nd6 Qe3 f7 Qd3 f8R Bh7 Nf7 Beg6 Rh1 Kf3 Rh6 Bh5 Rc6 B5g6 Bf2 Kg2 Rf1 Kf3 Be1+
1n2Q2q/4bb1B/nN1RbBn1/2R4q/Q1r3nP/3Nr2Q/KP1kP3/n1N4Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Kd7 Kd2 Kd6 Kc2 a5 Kb3 f5 h4 g5 b6 c5 h6 g4 h7 f3 b7 a4+ Ka3 g3 Ka2 f4 Nh3 f2 Qb3 g2 Qe3 g1Q Qf3 c4 Bd2 c3 Bg2 f1B Ka3 c2 Nc3 c1N Na2 Be6 Nf2 Nd3 Qh3 f3 Bc3 Be7 Nc1 Bf7 Ka2 Nc5 Nfd3 f2 Be4 Qg6 Rg1 a3 Rg5 Ra4 Re5 Nba6 b8N Qh5 Nd7 Rc4 Nb6 Nd7 Bg6 Ndb8 Rf5 Kc7 d6+ Kc6 d5+ Kb5 Qh1 Bh3 d7 f1N Bf6 Ne3 Rg5 Qe8 d8Q Bhe6 Qc8 Ng4 Bf5 Ka5 d6 Kb5 d7 Qd8 Ne1 Kb4 Qcc6 Qf8 d8Q Qe8 Qa4+ Kc5 Kb3 a2 Qdd7 Qc8 Rb1 a1N+ Ka2 Qd8 Qd3 Qd4 Be4+ Qe5 Qdb3 Kd4 Ned3 Ke3 Qba3 Qc3 Rc5 Kd2 Bf5 Bf8 Bg6 Ne7 Be4 Rg8 h8Q Ng6 Q3b3 Bd6 Bf5 Rd8 Qhe8 Be7 Qba3 Nf4 Bh7 Ng6 Nf2 Qce5 Qah3 Rdd4 Nfd3 Re4 Bg8 Qh8 Bh7 Re3 Nb3+ Kc2 Rd1 Qh5 Nbc1+ Nb3 Rf1 Kd2 Rff5 Na1 Rfd5 Qg7 Rd7 Qh8 Rd6
2bBr1k1/B2n4/1RQNq3/bK2PB1P/2N5/1bBQn3/Q1rbRP2/r4bq1 b - - 0 1 illegal: No proof kernel
2n1qn1K/k4NQ1/1B2B1Q1/1rP5/3n2b1/RBR1Nb1P/Pb3B1r/1b1bQ2q b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 g5 Ke3 e5 Ke4 b5 c4 d6 f4 Kd7 h6 Kc6 f6 Kb7 f5 g4 f7 b3 f6 b4 c6+ Kb6 c7 b2 h7 g3 c5+ Ka7 Na3 b1B+ Nc2 b3 Bc4 g2 Nf3 g1Q Qe1 b2 Be3 Bg4 c8B Nd7 Bb3 Bg7 f8Q Rb8 f7 Qe8 Ng5 Rb5 Bf2 Ne7 Qg8 Nf8 Bce6 Nc8 Kd5 e4 Ne3 Bc2 Rc1 Bcd1 Rc3 Be5 Qg7 b1B Qg6 Qf1 Rg1 Bdf3 Rg3 Qh1 Rh3 Bf4 Kd4 d5 Rg3 Bd6 Rh3 Be7 Ke5 d4 Rg3 Bd6+ Kf6 d3 Kg7 d2 Rh3 d1B Rg3 Nd7 f8Q Be5+ Qff6 Nf8 Nf7 Bd4 h3 Rg8+ Kh6 Rg7 h8B Be5 Nc2 e3 Qfg5 e2 Ne3 Rg8 Bf6 Bd4 Bd8 Bf6 Ba5 Bd4 Qd2 e1N Qe2 Nc2 Qe1 Be5 Qg7 Nd4 Q5g6 Nd7 Kh7 Rf8 Nd6 Rf4 Nf7 Nf8+ Kh8 Re4 Nc4 Re2 Ne3 Nc6 Rc4 Bb2 Ra4 Nd4 Ra3 Bd5 Nf5 Ba8 Rc3 Baf3 Ne3 Rd2 Bh4 Rg2 Bf2 Rh2 Bb6+
1nr2rQ1/1bQRq3/k3nR2/P1P1R1PB/1K1b3n/1N4r1/3nRq2/B1Q1N2n b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Kd2 h5 f4 e5 c4 b5 g4 d5 a4 Kd7 a5 Kc7 c6 b3 Kc3 e4 g6 d4+ Kb2 d3 Kc3 e3 c5 b4+ Kc4 d2 g7 h4 g5 h3 f6 e2 f5 e1Q f7 b2 f6 h2 Bg2 b3 Be4 Ne7 g8Q Ng6 Bf3 Bb7 Kb4 Nf4 Bh5 Bg7 f8R Qde7 f7 Bd4 Rd8 Ne6 Nf3 Qf2 Re1 h1N Qc2 d1N f8R Ne3 Ra2 Ng2 Nbd2 b1R Rf6 b2 Nb3 Nh4 Re5 Ra1 Ne1 b1N Bb2 Nd2 Qc1 Rb1 Ba1 Rb2 Qh7 Rf8 Qg8 Rc2 Rd6 Rc3 Rd7+ Kc8 c7 Rg3 Rf7 Bc6 Rff5 Kb7 Rf6 Ka6 c8Q+ Bb7 Qc7 Nc6+ Ka4 Rac8 Ka3 Nb8 Kb4 Nf1 Rae2 Nd2 Rdd5 Nhf3 Rd8 Nh4 Rd7
1N2qNn1/Q2R2RR/1BbN2qP/1P2Q2r/1bP1r3/1qn1q2B/3k3K/1q1Rb3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 c4 Kf6 b4 Ke5 f4+ Ke4 Kf2 g5 Kg2 e5 f6 d5 f7 a5 f5 a4 h6 a3 f6 a2 h5 d3 h7 d2 b6 Ke3 b7 d4 b5 d3 Ne2 e4 Qc2 g4 Rh2 g3 Nf4 Bb4 f8Q Qe8 f7 Bd7 Ne6 Nc6 b8N Nce7 Qg7 Bc6 f8R Nd5 Qcb2 Nc3 Rf7 Ra7 Kg1 g2 Nf8 Re7 Qe5 Re6 Qa3 Re7 Bb2 d1Q Rg7 Qg4 Nd2 Qgg6 Rc1 a1Q Qa6 Qb1 Qa7+ Bc5 Rh4 Re6 Kh2 g1Q+ Kh3 Q1g5 Kh2 Re7 Bh3 Re6 Qa6 Bb4 Qa7+ Ke2 Rg4 e3 Ne4 d2 Nd6 d1Q Rd7 Kd2 Ba3 e2 h6 e1B Rg1 Qdb3 Rg3 Qe3 Rg4 Ba5 Bc5 Bb4 Bb6 Rf6 Rg5 Rf5 Rg3 Rh5 Rg1 Ne7 Rg3 Rg8 h8R Rg7 Rh7 Ng8 Rg5 Rf7 Rg4 Rf4 Rg3 Re4 Rg5 Qgf7 Rgg7 Qg6 Rd1+
5n1K/N7/2bbP2k/1Q3Q1n/1BBrP1n1/b1RqR3/1RBbPN2/3Bbq1r b - - 0 1 illegal: No proof kernel
B4b1R/Qn6/q2P1Nrn/1RPr2R1/B2NnP2/kr3Q1b/3r2BK/B1q3r1 b - - 0 1 illegal: No proof kernel
6Rk/Q1P1r1rn/QB2bb2/1KRr1qP1/2r3n1/3qqP2/4NRrR/1Q1B1N2 b - - 0 1 illegal: No possible last move, all moves rejected
8/qP1q1k1r/n1R1qNrR/K1b3N1/1Bb3R1/P3Q3/Bq1bQ2P/q4QnQ b - - 0 1 illegal: No proof kernel
3nK1n1/1P1r1B2/b1q1Q1R1/b1nRqPPB/1NQ3rq/1Q6/1q3N1B/2Qqk3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a5 f4 c6 b4 h4 f5 e6 b6 h3 b7 h2 b5 a4 b6 e3 g6 a3 g7 e2 g5 e1Q Nh3 a2 Be2 Ra7 Nc3 c5+ Kc4 Ke5 Kb5 Kd4 d6 e5 d7 c4 Bh5 Kd3 Nd5 Qc7 d8Q c3 Qd7 c2 Qe6 Nc6 b8Q e4 Qb7 e3 Nf2+ Kd4 d3 e2 Bf4 c1N Nb4 Kc3 d4 Qe5+ d5 Nb3 Qc7 Nc5 d6 Ra4 d7 Rh7 d8Q Qg1 Q8d6 e1Q Qd6d5 Nd8 Qcf7 Q1e4 Qc1+ Qc2 Rb1 a1Q Rb2 Qg4 Rd1 h1Q Bh2 Qh4 Qa2 Be7 Rd5 Qd1 Rb1 Qb2 b7 Bd7+ Kb6 Bb5 Ra1 Ba6 Rb1 Qee4 Kc7 Qe5+ Kc8 Bd6 Ra1 Bc7 Rb1 Nh6 g8B Ba5 Qc7 Rg7 Bgf7 Ng8 Qcb6 Nb3 Kd7 Nc5+ Ke8 Rh7 Bfg6 Rc7 Bf7 Rd7 Nbd3 Rg4 Qc7 Qa3 Rb6 Qa4 Nb4 Qc6 Qcb1 Qb2 Qa4 Bd3 Qb3+ Kd2 Qc1+ Ke1 Qc8 Ba6 Qc7 Qe3 Qf4 Qee5 Qfc4 Qa4 Qe7 Qb5 Rg6 Qc6 Qe6
1n3rR1/1Pk4n/4B3/1K1PBP2/1b2B1Bn/Rr1QqQRq/4n1b1/1nN2rN1 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 g4 c5 f4 a5 d4 e5 b4 h5 g6 e3 Kd3 e2 Kc4 e1Q d6 a4 f5 h4 g5 a3 b6 h3 g7 a2 g6 h2 b5 e4 b7 e3 b6 e2 Bd2 Qdh4 Bc3 Qh3 Qb3 Ra3 Nd2 Nf6 g8B Nh7 Kb5 c4 g7 Qc1 Bb2 e1N Be2 c3 Bd5 c2 g8B Nf3 Be4 Nh4 Bg4 Qe1 Qf3 c1N Bf7 Qe3 Nb3 Ne2 Be6+ Kd8 d7 Bb4 Nc1 Rb3 Bc3 Rf8 Bb2 Nc6 b8R Nc3+ Kc4 Nb1 b7 Kc7 Ra8 Nb8 Kb5 Rg8 Nge2 Rf8 Rg1 h1N Rg2 Ng3 Ng1 Ne2 Rg3 Nd2 Rb1 a1R Ra3 Ra2 Ra1 Nb1 Bc3 Rd2 Ra8 Rd1 R1a3 Rf1 Bb2 Kd6 d8Q+ Nd7 Qa5 Nb8 Qa6+ Kc7 d5 Bd7+ Kc4 Be8 Bg7 Bf7 Kb5 Bh5 Be5+ Kd8 Ka4 Rf6 Qf4 Rf7 Qd3 Rf6 Ra5 Na6 Bgf3 Bg4 Rc5 Nb8 Kb5 Rf7 Rc7 Rf8 Rg7 Bh5 Rg8 Bg4 Bh1 Bf3 Bg2 Qh1 Bh3 Bg2 Bg4 Qh3 Bf7 Kd7 Qf2 Kd8 Qf3 Kd7 Be6+ Kd8 Bd4 Kc7 Be5+
4b1Rn/P3N3/2nr1bq1/1BB3r1/PP2n1QK/N1qQqk2/NRB3N1/n6n b - - 0 1 illegal: No proof kernel
bN1bn1n1/KNr1b3/QPP1b1b1/1B5b/rR1R1Q1B/3R2bP/3qk1R1/1N6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 c4 Ke6 b4 Kf5 e3 Ke4 c5 g5 h3 f5 e6 a5 b6 d5 b5 a4 b7 f4 h6 d3 e7 g4 e8R+ Be6 h7 d2 Nf3 a3 Qe2 d1B Nh4 f3 Rg1 a2 Nf5 Nd7 b8N d4 b6 d3 c6 d2 Qa6 Ndf6 Bb5 Bc2 Ba3 d1B Be7 Qd6 Rd8 Ne8 Bh4 Be7 Rd7 Qb4 Rd3 g3+ Kf1 f2 Nd6+ Kf3 Nb7 Qd4 e4+ Qe3 Rd4 Qd2 e5 Bg6 Rb4 Ke3 Rd4 Bdh5 Rb4 Bb3 e6 Bd8 e7 Be6 Nc3 Kf3 Rd1 a1B Nb1 Bf6 Rd4 Ng7 e8Q Bfe7 Qd7 Ne8 Qd6 Ra7 Na5 Rc7 Nb7 Nh6 Qe5 Rf8 h8R Rf4 Rf8 Ng8 Qd6 Ke3 Rb4 Rd4 Rf4 Rc4 Rg4 Kf3 Rd4 Ke3 Kg2 Ke2 Qf4 f1B+ Kh1 g2+ Kh2 Qb2 Kg3 Qc1 R1d3 Qd2 Rbb3 Ra4 Rbb4 Qa2 Qd6 Qc2 Kf4 Qd2+ Ke5 Bb3 Rh1 g1B Qf6 Be6 Qf4 Bh2 Rg1 Bc8 Kd5 Bg3 Kc4 Bg2 Nd6 Bb7 Kc5 Ng7 Kc4 Ba8 Nb7 Bf6 Kc5 Bd5 Kd6 Be6 Kc5 Rf7 Kd6 Bde7+ Kc7 Bc5+ Nd7 Ne8+ Kb8 Bd8 Ka7 Rh7 Nb8 Rc7 Rbb3 Bf8 Rbb4 Bfe7 Rg2+
n1qR2K1/Qn1B4/1N3bN1/1rRn1bq1/4PN1k/R4b2/nr1P1P2/3NBqQ1 b - - 0 1 illegal: Other
1B1B1N1k/QrRn1rN1/1bnR2Q1/r2BN2P/P6P/5q2/K4B2/n1q1b1bb b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 d4 e5 Kd2 g5 Kc2 Kg7 Kb3 c5 a4 b5 f4 g4 d6 e4 d7 c4+ Ka2 c3 d5 g3 d6 g2 Qc2 e3 Nh3 g1B Nd2 e2 Nf3 e1B Be3 Nf6 Bf2 Rh7 Ne5 Bb7 Bg2 Kh8 Ng5 Rf7 Bd5 Ra5 Ne6 Nc6 Rc1 Qa8 d8Q Nd7 Qc7 Bh6 Qd3 c2 f6 Qf8 f5 Be3 Rd1 c1Q Ng7 Bb6 Rh3 Ba8 Qa7 Bb7 Qb1 Ba8 Rc3 b3+ Ka1 b2+ Ka2 b4 Qd3 Re7 f7 b1N f6 Nd2 Qg6 Nb3 Rd4 Bb7 Rcc4 Qa8 f8B Rf7 Be7 Na1 Bd8 Qc8 Bc7 Qc3 Bb8 b3+ Kb1 b2 Ka2 b1R Rd2 Re7 f7 Qf3 f8N Rf7 Rc3 Qd8 Rd4 Qg5 Rd1 Qc1 Rc2 Nf6 d7 Rb3 d8B Nd7 Rc3 Nd4 Nc6 Qh1 Bc4 Bc5 Ne5 Bc6 Qf6 Rb7 Qe6 Bb6 Qg6 Qh3 Be6 Bh1 Rc7 Nc6 Rd6 Qf3 Bd5
5b2/4bK1n/RNbQ2n1/2R1rRPQ/2RN1qP1/2k3rn/1r2bBP1/q5NB b - - 0 1 illegal: Other
4rr1k/1qrnqqB1/B1B2B2/nqNb1RPR/1P1QP2K/6nQ/Nb6/3R4 b - - 0 1 illegal: No possible last move, all moves rejected
1Q1R1Rk1/qrB1b2n/1QN1bn2/P4P1R/2NKn3/R1P3nq/2q3B1/2N2b1r b - - 0 1 illegal: No possible last move, all moves rejected
1b1Q2N1/R1rQ4/K1B1r2P/4Nb2/4PkB1/n2QqPq1/RrQb2nr/2B1n3 b - - 0 1 illegal: No proof kernel
QR2qqb1/Q1r5/4NP2/QQ1qr2n/2R1r2B/NN1b3q/K1PP1n2/b2Bk3 b - - 0 1 illegal: No proof kernel
3qq3/n2nbRr1/1QnP1rB1/1R2Bb2/k1n2N2/6N1/bNP1Pr2/1Q1K1Q1Q b - - 0 1 illegal: No proof kernel
rQb4B/1NBnqNrB/3P4/2bP3R/2R2n1Q/1q1bPk2/1r2B2q/2KQ1r2 b - - 0 1 illegal: No possible last move
1q1qN3/Q2n2B1/2PnnRk1/2bN1R2/2rQb1bR/qP4N1/2bN2PK/3B1r2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 f4 Kf7 Kf2 h5 Kg3 d5 c4 a5 f6 e5 b6 e4 f5 e3 b3 d3 b7 a4 c5 d4 c6 e2 Na3 e1N Kh3 d2 Rb1 h4 Qc2 d1B Ne2 d3 Nc4 a3 Bb2 d2 Qd3 a2 Qd4 a1Q Ng3 Nf3 Be2 Nd7 b8Q Ra4 Qba7 Bc2 Rbf1 d1B Nd2 Be4 Bc3 Bdc2 Bd1 Bc5 g6+ Ke8 g7 Kf7 Rf2 Ng5+ Kh2 Nh6 g8N h3 Ne7 Rf8 Nd5 Qa3 Rff1 Rc4 Ba1 Kg8 f7+ Kh7 f6 Kg6 Rf5 Ne6 Bc3 Rg8 f8R Nf7 Bb2 Nd6 f7 Rg7 Rh8 Rh7 Rhf1 Rh4 R1f2 Rf4 Rh4 Rf3 Qd3 Rf4 Bg7 Rf3 Qd4 Rf4 Re2 Rf1 Ref2 Nc7 Nh1 Nf8 R5f3 Ndb5 Kg3 Bg4 Rf4 Nd7 f8N+ Kg5 Rf7 h2 Nh7+ Kg6 Nhf6 Ne6 Rf5 Qa6 Nf2 h1Q Ne8 Qa3 Rf8 Qg1 Nh1 Qf2+ Kh2 Qf4+ Ng3 Qfb8 R8f7 Nd6 R7f6+
rn6/1qN3Q1/1BP1B1rr/1q3nBP/b3K2R/bk3r2/n2RP2R/R2q1N1Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 c4 a5 b4 g5 h4 d5 b6 f5 h6 g4+ Kf4 g3 c5 g2 h7 d3 b5 d2 h5 a4 b7 d4 b6 Kd5 e6 Kc4 e7 d3 e8R a3 Nh3 g1R Qe1 d1Q Re4+ Kb3 Ra4 a2 Ng5 d2 Bh3 Qd3 Rh2 Ne7 Ne6 Qb5 Nc7 Rg6 Qh1 Bd7 Ke5 f4 Ke4 f3 Be6+ Nd5 Rc4 f2 Rc2 f1R c6 Rf3 Rc4 Ba3 Ra4 Be8 Rc4 Bf7 Ra4 Rd8 h8Q Rd6 Rc4 Ne7 Qg7 Nf5 Rc2+ Kb4 Rb2+ Qb3 Rc2 d1N Bg5 Rh6 Nd2 Qb2 Nf1 Rg6 Bd7 Bb3 Be6 Ba4 Rd2 Rh6 Bd5 Rdg6 Be6 Na6 b8B Qb3 Rc1 a1Q Ba7 Nb8 b7 Qbb2 Rc4+ Kb3 Bf2 Nde3 Bg1 Nd5 Bb6 Qd1 Rc1 Nh4 Ra1 Nf5 Bc8 Nb4 Bd7 N8a6 b8R Na2 Rd8 Nb8 Rf8 Nd4 Rf4 Nf5 Bc8 Qf6 Rfh4 Qf7 Ne6 Qa7 Nc7 Qb7 Be6+
3bb2K/N3n1rQ/1P6/k2B1RnB/1qQB3P/nQ1N1B2/2nrq1P1/3Rbr2 b - - 0 1 illegal: No proof kernel
2RBnk2/Q5b1/1Prrb1n1/1nRQ2Nq/1N1B1P2/3rRqB1/B1KP1q1r/8 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 g4 a5 f4 h5 b4 c5 d6 e5 b6 h3 f6 c4 b7 h2 b5 h4 b6 a4 g5 a3 g6 c3 g7 h3 Ne2 c2 Ng3 a2 Qf3 e4 Qd1 e3 Qe2 Ra3 Ne4 Rd3 Nbc3 Nc6 b8R Be6 Rc8 Ne5 Ng5 Ng6 Nd5 Rh6 Bb2 c1R+ Qd1 e2 Bd4 Rc2 Rc1 a1N Nb4 Rc6 Rc5 Nb3 Rg1 h1R Qa1 h2 Qa7 Bd7 Rg3 Be6 Bf2 Nd4 Re3 Nb5 Bg3 Na3 Kf2 e1Q+ Kf3 Qd1+ Ke4 Nb5 Be2 Qg1 Bd1 Qe1 Bb3 Qf1 Ba2 Qf2 Rc7 Qa8 f7+ Kd8 d7 Ke7 Rc8 Rcd6+ Qb7 Qa3 Qa7 Rc1 Rf5 Rcc6 Rc5 h1Q+ Rf3 Qh5 Re3 Kf6 d8B+ N8e7 g8Q Bg7 Bc7 Nd5 f8B Rd7 Bb8 Ndc7 Bd6 Rh8 Be5+ Ke7 Bd4 Ne8 Bc7 Qb3 Qa4 Rdd6 Qa7 Bh3 Qd5 Be6 Bd8+ Kf8 Qa6 Qhe2 Qa5 Rh2 Qa7 Qh5 Re2 Rf3 Re3 Qd1 Kd3 Qh1 Kc2 Qhg2 Re5 Rd3 Re2 Qgf3 Re3
b3Q1k1/1rN1rq1b/1P1Q1RPn/1BN1b1Kn/3NQ3/2b5/NB5P/1qrq3R b - - 0 1 illegal: No proof kernel
3B1bR1/1Q4qk/1P1PRrPN/qrq1r3/1QB2N2/1n3n1r/N1bn2K1/1R1N4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 f4 Kg7 Kf2 c5 g4 e5 d4 h5 f6+ Kh7 f5 a5 f7 a4 d6 h3 f6 c4 d5 h2 g5 a3 d7 c3 b6 c2 b5 a2 b7 h4 d6 h3 Be3 c1N Qe1 e4 Nc3 Nc6 b8N Nd4 Nd1 Ncb3 Ne2 Qa5 d8N Nf3 Nf4 Bf5 Rb1 a1Q Nbc6 Rb8 Bb6 e3+ Kg3 e2 Qb4 e1R Bc4 Re4 Re1 h1R Re3 h2 Kg2 Re7 Re6 Bc2 Bc7 Rf1 Bb6 Bh6 f8R Rbb7 f7 Nf6 Re8 Ne4 f8Q Ned2 Qf7+ Qg7 Rg8 Re8 Qd7 Re7 Nf7 h1Q+ Kg3 Re8 Bd8 Qg1+ Kh3 Rb8 Qb7 Qc5 Kg2 Re7 Rg6 Re5 Rf6 Qg6 Re6 Bf8 Nh6+ Qg7 b6 Rc8 Ra1 Rc7 Rc1 Rf7 Rb1 Rf6 Qb5 Rfe1 Nb4 R1e3 Na2 R3e4 Bd5 Rb4 Qa4 Rb5 Bc4 Ref5 Qa3 Re5 Qb4 Ref5 Nf7 Re5 Nh3 Kg6 Nf4+ Kf5 Ne2 Rh3 Nh6+ Kg6 Nf4+ Kh7 g6+
1NB3KQ/Rq1nq2P/n1bP2br/b2r4/2N3R1/2k1q1NP/R1r2rRB/5Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 e4 g5 d6 f5 b3 c5 h3 a4 h6 c4 d5 g4 d7 c3 Ke6 c2 Kf7 a3 e5 g3 b6 g2 b7 a2 e6 f3 e7 f2 e8R f4 Re7 f3 Na3 Ra5 Nc4 Nf6 Bf4 c1R Rh2 Kc3 b4 Na6 b8Q Rc2 b5 Bb7 b6 Bc6 b7 Rc5 Bd3 f1R Bf5 Rff2 Qf1 Bg7 d6 Rd5 Qa8 Qb6 b8N Qb7 d8R Nd7 Re4 Bf6 Rde8 Bd8 R8e7 Rh7+ Kg8 Ba5 Rd1 a1Q Rd2 Qe1 Ne2+ Kb4 Rg7 g1Q Ng3 Kc3 Rg2 Qe2 Red4 Qe7 Re2 Ndc5 Bc8 Nd7 Qc1 Qe1 Be5 Qd2 Qf1 Qe3 Rgg4 Rf7 h7 Rf6 Bf4 Re6 Rd1 Rh6 Red2 Re2 Ra1 f2 Rdd1 Red2 Ra2 Re2 Rda1 Red2 Qe2 f1B Qf2 Bd3 Qf1 Bb6 Rg5 Rf2 Rg4 Nac5 Ra7 Na6 Ra2 Bd8 Nh5 Ba5 Bh2 Bg6 Ng3 Qbb6 Qb7 Qc7 Qb6 Qb7 Qd4+ Kb3 Qh8 Kb4 Ne5+ Kc3 Nc4+
B1Qnq2b/6P1/k2NP3/1qr1qRNr/r1P2Rb1/BBQn1qQ1/K7/4b1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 a5 g4 f5 b4 d5 e4 Kd7 c3 Kc7 Kc2 Kb6 Kb2 h5 e6 d3 g6 f4 g5 d4 g7 f3 g6 a4 e5 d2 e7 h4 e8Q h3 Qd7 h2 Na3 d3 Qe1 d1Q Ka2 d2 Nh3 f2 Ng5 Qe8 Bg2 Nh6 g8B f1Q Bb3 Qde2 c4 d1R+ Bb2 Rd5 Qc3 Qff3 Rhf1 h1Q Qd6+ Kb7 b6 Ka6 b7+ Nc6 b8B Nf7 Nb5 a3 Ba7 Rh5 Bg1 Bg4 e6 Rc5 Qg3 Nce5 Nd6 Nd3 Rab1 Qfc6 Rf5 Qe5 Rbf1 Qb5 R1f4 Nd8 Bc1 Ra7 Ba8 Bg7 Bb2 Bh8 g7 Qhd5 Ka1 a2 Ba3 Nf2 Kb2 a1B+ Ka2 Nd3 Rf6 Qf3 R6f5 Qa4 b5+ Kb6 Qd2 Bc3 Qb2 Ka5 b6 Qab5 b7 Be1 b8Q Ka6 Qc8+ Kb6 Be4 Ra4 Ba8 Ka7 Qc3 Kb6 Qb8+ Ka6 Qc8+
N7/1rQKbPr1/B1R1P2n/B1r5/1P1R2Nq/1nnN3N/q1Bq1Qb1/1r5k b - - 0 1 illegal: No proof kernel
1bBbQ2R/1PNq3q/1KQ1b1Rn/2N1r1Rk/1R3q1P/2bQP3/5nr1/B5r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 h4 c5 b4 f5 d4 Kf7 d6 g5 d7 f3 Ke3 f2 b6 g4 b7 g3 h6 Kg6 h7 g2 b5 c4 b6 c3 d5 f4+ Kd4 f3 d6 a4 Kc5 c2 Ra2 a3 Nd2 Kh5 Ne4 Nh6 Qd3 Nc6 b8R Nb4 Bb2 c1B Ba1 Be7 Nh3 g1R Nhg5 Bf4 e3 Re8 Bh3 f1Q h8R f2 Ne6 Qb1 Nc7 f1Q Rg2 a2 Rg6 Beg5 b7 Re5+ Kb6 Ra3 Qb5 Nd3 Nc5 Nf2 Ra8 Rb3 Ra4 Rb2 Rb4 Qe7 d8Q Qd7 Qe8 Bd8 Qc6 Rc2 Bd4 a1B Rh2 Bc3 Rhg2 Rb2 Be6 Qbd3 R2g3 Qh7 Bf5 Be6 d7 Nd1 Bh3 Rbg2 Bf5 Nf2 R3g4 Be7 d8Q Qdd1 Qdd5 Bd8 Qc4 Bh2 Rg3 Qg4 Qd3 Qf4 Bh3 Qd1 R3g4 Be1 Ba1 Bc3 Qde4 Qd6 Qd3 Qdd7 Ra4 Bd5 Rhg8 Qff7 Ne6 Rf5 Nc5 Qc8 Rab4 Bd6 Rh8 Re5 Rg3 Qf4 Bd7 Be6 R3g4 Bg5 Nd5 Bb8 Nc7 Qd8 Bc8 Qdd7 Rg3 Bd8 R3g5+
qbB1QK2/1PN3n1/8/P2n1br1/5P1R/RB1nBNr1/1b1R2q1/Qq1n1kB1 b - - 0 1 illegal: No proof kernel
4N3/1P1B1qn1/Nq4bP/4K1k1/P3RrQq/1n2Rb2/1Q1bnN1r/1bQ3BN b - - 0 1 illegal: No proof kernel
7k/P3NbB1/1KRr4/2r1r2n/QB2B3/3PNRq1/4P1qq/n1QbbbQQ b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 f5 Ke3 Kf7 Kd4 g5 h4 Kg7 a4 c5+ Kc4 b5+ Kd3 f4 d6 c4+ Kd4 f3 Kc5 f2 e6 g4 e7 c3 e8Q g3 a5 c2 d3 b3 a6 b4 a7 g2 Bf4 c1R+ Nc3 b2 Rh3 b1Q Bd2 b3 Ra6 b2 Rf3 Nc6 Nh3 g1Q Nf4 Na5 Nd5 Qdg5 Bg2 Nf6 Kb6 f1B+ Ne3 Qh2 d7 Nb3 d8Q Rh6 Qa4 Na1 Qc7+ Kh8 Ncd5 Be6 Ne7 Re8 Bb4 Bf7 Qcc2 Rg6 h6 Qgg3 h7 Nh5+ Qcc6 Rc4 Qc1 Rh6 Qg6 Rc5 Bh1 Qa2 Bg2 b1B Bh1 Nf6 h5 Bc2 Qg5 Qd5 Qg4 Qgh3 Qg1 Bd1 Bg2 Q3g3 Bh1 Kg7 h8B+ Kh7 Bg7 Qe4 Nc6 Ree5 Ne7 Rg6 h6 Nh5+ Nc6 Rd6 Bg2 Kg6 h7 Be7 h8Q Bh4 Qa8 Kh7 Qb7 Rd7 Ne7 Rd6+ Qbc6 Qeg6 Rf4 Q6g5 Be4+ Qg6 Rf3 Qgg2 Kb7 Be1 Qd5 Qgg3 Rc6 Qgg2 Kb6 Qgg3 Qe6 Qgg2 Qh3 Qgg3 Bh6 Kh8 Qhg2 Q6g4 Q2h1 Qgg2 Bf8 Q4g3 Bg7+
QKnQ4/P1rQN3/4b1P1/k2q1P1n/1N2rB2/1B1r1RR1/1N1b1n2/rq2Qq2 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 b5 Ke4 h5 Ke5 c5 a4 Kc7 d4 Kb6 f4 c4 g4 c3 g6 c2 a5+ Ka6 g7 b3 d6 b2 g5 e6 f6 h4 g6 h3 d7 h2 f7 Rh4 f5 Ra7 d5 Rc7 d6 Rd4 Na3 b1R Bf4 c1Q Qe1 Rd3 Nf3 b4 Nc4 b3 Nb2 Nf6 g8N Nh5 Rg1 h1N Ra3 Ra1 Nd4 Nf2 Nc2 Bh6 f8Q Kb5 a6 Kb6 Bh2 Bd2 a7 Qd1 Nb4 Kb5 Na4 b2 Rg3 b1Q Ne7 Ka5 Rb3 Qf3 Nb2 Qg2 Be2 Qf1 Qg7 Qg8 d8Q Qf7 d7 Qg8 Ned5 Nc6+ Kd6 e5 Bd1 e4 Qd4 e3 Ne7 e2 Ra3+ Kb5 Bb3 Qc4 Qe8 Qf7 d8Q Be6 Qd5+ Kb6 Qed7 Qg8 Qc1 e1R Qa8 Re4 Qe1 Qc8 Rf3 Qa6 Bf4 Qb5 Ba4 Ka5 Rg3 Rdd4 Raf3 Rd3 Qd4 Ne5 Qdd8 Nd7 Bb3 Nb6 Ng8 Rh7 Ne7 Qd5+ Kc7 Nc8 Qd7 Rf7 Kb8 Rg7 Ng8 Re7 Qd8+ Rc7 Ne7 Qc5 Q4d6 Qd5 Q6d7
1n2bBkn/PN2q2R/nrR1Pr1R/B2R1nK1/2B3PQ/5b2/q3NQ2/3r2b1 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 h5 Ke3 b5 Kf4 f5 g4 Kf7 a4 c5 d4 c4 e4 b3 d6 b2 d7 c3 a5 h4 d5 c2 a6 h3 d6 h2 a7 b4 Qd4 b3 Na3 b1R Nb5 b2 Bd2 c1N Qf2 Nh6 e6+ Kg8 e5 Nf7 e7 Nb3 e8R Nc5 g6 Rh6 g7 Rf6 e6 Qe7 d8Q Bd7 Ra5 Nca6 Ne2 Nh8 Bb4 Rd1 Kg5 b1Q Ba3 Bc6 d7 f4 Nd6 f3 Rd5 Qa2 Nb7 Bb5 Qc8 Ba4 d8B Bc6 Qh4 f2 Ba5 Ba4 Qc5 Bb5 Bh3 f1N Qcf2 Ng3 Rc8 Nf5 Bf1 Bd7 Rc6 Be8 Rg1 h1B Rg2 Qd8 Rh2 Bf3 Bc5 Bd6 Rh1 Bh2 Bf8 Bg1 Rh2 Bh5 Rh3 Kh7 g8R Qe7 Bh6 Bf7 Rg6 Be8 Bg7+ Kg8 Rh6 Nd7 Bf8 Rb8 Nd8 Rb6 Nb7 Qb3 Nc1 Qba3 Bc4 Qa2 Ne2 Ndb8 Rh7 Nd7 Qhg3 Ndb8 R3h6 Qa4 Qgh2 Qa2 Qhh4
1r1r1q2/2Qn1Qr1/1Q2r1R1/bR2rP1N/BPb1PK2/R3r3/2nQ2N1/1k4Bb b - - 0 1 illegal: No proof kernel
2n1BN2/Rn2N2r/4P2Q/1K4QR/2rP2Q1/1P2B2R/1kqbnnbn/4Q1nr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 e4 Kd7 Ke2 Kd6 Kd3 Kc5 h4 Kb4 b6 g5 e5 a5 e6 c5 b3 f5 b7 c4+ Kd4 c3 h6 a4 d6 a3 d3 a2 h7 c2 d7 f3 h5 f4 h6 g4 Nc3 g3 Rh3 f2 Nce2 g2 Rh1 f3 Bb2 c1N Ng3 Qc7 d8Q Nd7 b8R+ Bb7 Nf5 Qc2 Rh5 Ra4 Ne2 g1N Nf4 Ne7 Ng6 Nc8 Qg5 Nc5 Rh3 Bd6 Nf8 Bf4 Ne7 Bd2 Be2 f1R Qe1 f2 Ra8 Bh1 Ra7 Nb7 Bh5 Bg2 Rb1 a1N Be8 Nd8 Bc3+ Ka3+ Kc5 Nce2 d4 Nb7+ Kb5 Ka2 Ba5 Rc4 Rc1 Kb2 Bc7 Rg8 h8Q Rg7 Qg8 Rf7 Bf4 Rh7 Qd1 Re1 Be3 f1N Qg4 Nh2 Q8g5 Qg6 Rc3 Nc2 Rh5 Nb4 Rd3 Rf1 Qe1 Qe4 Rc3 Qc2 Rd3 Rg7 Rc3 Nd3 h7 Nf2 h8Q Rh7 Rd3 Ngh3 Qhg7 Rh1 Q7h6 Nhg1 Bf4 Rf7 Rdh3 Rh7 Be3
6b1/1KnPRR2/r2b1nP1/1R1B2bN/kP2bQ2/5N2/nqbb2Q1/Q1QrB3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Kf3 e5 Ke4 c5 g4 a5 f4 h5 d4 a4 b4 h3 d6 h4 Kd5 c4 b6 a3 f6 a2 g5 e4 f5 h2 g6 e3 b7 c3 f7 c2 f6 e2 Bd2 c1B Nf3 e1N Bg2 h3 Rf1 h1B Nc3 h2 Ne2 Nd3 Be1 Bd2 Qc1 Na6 b8R Qc7 Ng3 Qc2 Rf2 Qb2 Rb5 Be7 Rb1 a1B f8Q Ra7 f7 Beg5 Qg7 Nc7+ Kc4 Kc6 f8Q Rh5 d7 Ra6 Qf4 Nf6 d8Q Bf5 Re2 Rh4 Re7 Rh8 Qb8 Rd8 Nh5 Rd5 Qc8 Be6 Qc2 Bg8 Qh3 Nc1 Qd1 Na2 Qc1 Qa3 Rf7 Bac3 Rb3 Ba1 Re3 Qb2 Ree7 Rd6 Rbe5 Kb6 d5 Rd8 d6 Kc6 Nd4+ Kb6 Bd5 Be4 Qhg3 h1B Nf3 Bb1 Qg2 Bc2 Qf8 Rd7 Qe8 Rd8 Qa4 Rd7 Qa3 Rd8 Qc3 Rd7 Kd4 Kb5 Rf5 Ka4 Kc5 Ra7 Kc6 Ra6+ Kb7 Rd8 Qgh2 Rd7 Nd4 Bhe4 Nf3 Qb1 Qg2 Bb2 Qc5 Be5 Qd4 Qb3 Qda1 Qb2 Re8 Re7 d7 Bd6 Rff8 Rh7 Rf7 Rh8 Ree7 Rh7 Ng3 Rh1 Nh5 Rg1 Bg3 Rd1 Be1 Qb1 Rfe5 Qb2 Bc6+ Kb3 Rb5 Ka4 Bd5
4r3/1bR1b3/q5R1/b1QNk1PN/1P1BnRB1/Q4rP1/KB3r2/B1rn2bb b - - 0 1 illegal: No possible last move, all moves rejected
nBn1kb1N/1P4r1/2q2B2/1R1NPBr1/r5b1/1rRbr1P1/2R2QRK/bQ6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 h5 e4 c5 d4 f5 b4 a5 b6 h4 b5 f3 e5 a4 b7 h3 Kg3 a3 d6 h2 d5 a2 d7+ Kf7 b6 c4 d6 c3 Ne2 c2 Nf4 f2 Nc3 Qc7 d8Q Ne7 d7 Rg8 Bd3 f1B Rb1 a1B Ncd5 Qc6 Ng6 Na6 b8B Nc7 b7 Rg7 Rb5 f4+ Kh3 f3 Bf5 f2 Nh8+ Kg8 g6 Bd3 g3 f1R Bg5 c1R Rg1 Rf3 Bf6 Rc3 Qb1 Re3 Rg2 Ra4 Qe8 Na8 d8R Bd7 Rc8 Rb3 Qd8 Be6 Qb6 Bd7 Rc7 Nc8 Qd4 Be6 Qdb2 Bd7 Qf2 h1R+ Rh2 Rf1 Rg2 Be6 Kh2 Bd7 Be4 Bg4 Bf5 Rf7 g7 Rd7 Ng6 Kf7 g8R Ke8 Nh8 Re7 Rg6 Rg7 Rh6 Qd6 Rc3 Qc6 Qfb2 Rff4 Qf2 Rg5 Rh7 Rfb4 Rc7 Rd4 Nf4 Rd7 Nd5 Rdg7 Rc2 Qe6 R7c4 Qc6 R4c3
nBR4n/b3n1r1/Pk1rb1Q1/2rN1R2/nP4N1/2NRr3/bQ1P2Bq/3K1R2 b - - 0 1 illegal: No proof kernel
r1bbQN2/b1kP3B/3n1Q2/Kn1nr1r1/RN4R1/b5R1/P3B2P/BR2n2q b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 e4 Kd7 d4 c5 Kd2 b5 d6 f5 d5 g5 h6 f4 h7 b3 Kc3 c4 Kb4 f3 Qc2 c3 Qf2 b2 Be2 g4 Nd2 b1N Nb3 g3 Bf4 g2 Nd4 c2 Ne6 c1B Nh3 Nd2 Rb1 Ne7 Rg1 Rg8 h8R Rg5 Rh4 Nf5 Rg4 Be7 Bg3 Qc7 Nhf4 Qc6 Nd3 Na6+ Ka5 Ba3 Nb4 Bd8+ Qb6 f2 Nf8+ Ke8 e6 f1R e5 Nc7+ Qa6 Nf3 e7 Ne1 Bf2 Qb7 Bd4 Rf4 Ba1 Re4 Nc2 b4 d7+ Kf7 e8B+ Ke7 e6 b3 Nb4 b2 Bh5 Nd6 Bg6 Ree5 Bh7 Qc6 Rf1 g1B Rf3 Qb7 Rfg3 Ba7 Qc6 Ncb5+ Qb6 Bc7 d8R Qc6 Rd7+ Ke8 e7 Bd8 Rc7 Qc1 Rcc4 Qd1 Rbc1 b1N Rce4 N1c3 Rb1 Nc2 Rc4 Qh1 Rcd4 Ne1 Rde4 Nf5 d6 Nd5 d7+ Kf7 Na6 Nfd6 Ra4 Kf6 Nb4 Kf7 Ng6 Ke6 e8Q+ Be7 Qe3 Nf5 Nf8+ Kd6 Bc3 Kc7 Qf3 Bd8 Ba1 Nfd6 Qf6
RNkBNR2/P2rR1nP/bb1Qn1rq/n2n2BR/K7/1r6/P1Q3r1/3Bb3 b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 f4 Kd7 d4 g5 Kd2 b5 Kc3 e5 Kb3 c5 h4 g3 h5 g2 d6 b4 f6 c4+ Ka4 c3 f5 g4 a6 g3 h6 b3 h7 b2 d5 e4 a7 e3 f7 e2 f6 e1B Qh5 c2 Nd2 b1N Rh4 Nh6 Bb5+ Nc6 Ngf3 g1R Qg6 g2 Rh5 Ba6 Be2 Rb8 Ne4 Qb6 Ne5+ Kc8 Bd1 Nd4 Bg5 c1N Nc6 Ne6 Qf5 Be7 f8R+ Bd8 f7 Nb3 Nf6 Na5 Qc2 Nf5 Ne8 Nfg7 Rg8 Qe3 f8R Rb3 Nb8+ Bc7 Bf6 Qh6 d7+ Kb7 d8B Bb6 Qe2 Kc8 d6 Re3 Bg5 Nc3+ Ka3 Nd5+ Ka4 Rb3 Qf2 Rf1 Qf5 g1R d7+ Kb7 Qe4 Rf6 Qc2 Rg2 Rc1 Rg6 Rb1 Nf5 Rg7 Rg8 Re7 R8g7 Rb2 Rf3 Rb5 Rb3 Rc5 Rf7 Rc8 Nfg7 Bc7 Rff2 d8Q Rd2 Qd6 Rdd3 Nd7 Rdd2 Ra8 Rdd3 Nb8 Kc8 Rh3 Rdc3 Bd8 Rc7 Qf5 Rb7 Rh5 Rd7 Qc2+
1Bqk4/Nn1qr1rb/8/1rQB2n1/3qq1r1/4Q1PR/1B1P1bP1/KNR1RB2 b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 g5 a4 e5 axb5 exf4 Ra5 g4 Ra1 g3 hxg3 Qg5 Qa4 Qe7 Qd1 Qd8 e4 h5 b4 c5 e5 f5 d6 a5 e6 c4 e7 f3 b6 f2+ Ke2 c3 Kd3 h4 Kc2 a4 b7 h3 b5 f4 b6 h2 Ba6 f1Q Bc4 a3 Be2 a2 Nh3 f3 Bb2 f2 Ng5 Qe1 Bf1 Rh4 Nf7 Nd7 b8B Ngf6 b7 Nc5 Ba6 f1R Nh8 Qd7 Bc4 Rg4 Rg1 h1R Qe2 Ra7 Qe3 Rh7 Bd5 Nfe4 Nf7 Rhg7 Ne5 Rf5 Nc6 Ng5 Rh1 Re5 Rh3 Ra5 Na7 Rb5 Na3 Qe2 Re1 a1Q Nb1 Qa4+ Kc1 Qd4 Kc2 Re6 Kc1 Qf3 Kc2 Qfe4+ Kc1 Kf7 e8B+ Kf6 Bf7 c2 Bc4 Re7 Bf1 Qc7 Bd5 Bf5 d7 Bh7 d8R Qd7 Bc6 Ke6 Rc8 Kf7 Rc7 Ke8 Bd5 Kd8 Bc3 Ra5 Kb2 Rb5+ Ka1 c1Q Bb2 Nb3+ Ka2 Na5 Ka1 Qcc3 Na3 Qcc6 Nb1 Qce6 Rcc1 Qec6 Be5 Qcc8 b8Q Nb7 Qa8 Ref7 Qb8 Bc5 Qd6 Bb6 Qda3 Re7 Bb8 Qdc4 Qeb3 Bf2 Qe3 Qcd4 Qc5
2K2RN1/1Q2Q3/Rq1b3n/N2b4/r5Bb/nBPkN1n1/PB1nPr2/Nbq5 b - - 0 1 illegal: Other
1R2rq2/2b3B1/1BB3Q1/2RPP1bP/2kq2rQ/6n1/K1N1nB1N/1Nbbq1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 e4 Kd6 b4 a5 d4 c5 Kd2 g5 Kc2 f5 Kb3 a4+ Ka2 f3 b6 a3 b5 f4 h6 g4 h5 f2 b7 c4 h7 c3 b6 g3 Qc2 f3 Bh3 f1Q Qd1 c2 Bg2 f2 Qg4 Bh6 Nf3 Nc6 b8N Nge7 b7 Nf5 Na6 Rg8 h8B Bg5 Bg7 Qe1 Nb4 f1Q Be3 c1B Nh2 Qf4 Qh3 Qf8 Bf2 Be6 Nc2 Re8 Bf3 g2 Qh4 g1Q Bg2 Ng3 b8Q+ Kd7 Qb2 Kd6 Qb6 Bg4 Qa6 Bd1 Bf3 Ke7 d6+ Ke6 d7 Qfe3 d8B Kd6 d5 Kc5 Be2 Nd4 Bb5 Nde2 Qg6 Qd4 Bc6 Kc4 Bb6 Bgf4 Nc3 Bc7 Rb1 Bg5 Bc5 Bc1 Rb8 Bg5 Bb6 Bc1 Ka1 a2 e5 Bg5 Kb2 a1B+ Ka2 Bb2 Nb1 Ba3 Nf1 Bac1 Rh3 Nf5 Ra3 Nfg3 Nh2 Rh8 Ra5 Rh6 Qh7 Rf6 Qh6 Rf4 Qg6 Rg4 Rc5+
1N1n2bB/1rR1rB2/2q4k/BPN5/1nnb2P1/3R1q2/1Q2RPQ1/1bKb2Rn b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kf7 Kd2 Kg7 g4 e5 b4 a5 f6+ Kh6 f7 c5 b6 h3 b5 e4 b7 a4 d6 c4 d5 a3 d7 a2 d6 c3+ Kc2+ e3 Na3 h2 Nc4 Nc6 b8R Nge7 Qd4 Ra7 Na5 Bg7 f8B Rb7 Nb3 Nf5 Nc5 Qf6 d8R Ng3 d7 Qf3 Ba3 e2 Qe5 e1N+ Kc1 c2 Kd2 Nd3 Ne4 Ndb4 Rb1 a1N Re8 Nd8 Rc1 Rg8 Bb2 Nb3+ Ke1 Rh8 Nc5 Na5 Ne2 Nc4 Rg1 h1B Nd4 Bg2 Qe2 Nh1 Nc6 Rg8 Bd6 Bd4 Bc7 Rg7 Ba5 Re7 Rd1 c1Q Qe4 Qcf4 Rd3 Qd6 Ra8 Qd5 Nb8 Qc6 Be2 Bf1 Kd1 Bg2 Kc1 Bf1 Bd1 Be2 Bb3 Bd1 Qe2 Kg6 Re3 h5 Rd3 h4 Ra7 h3 Ba1 h2 Qb2 Kh6 Ba2 Nf7 d8Q Be6 Qd5 Nd8 Bb3 Bg8 Ba2 Rec7 Re4 Re7 Re2 Ng3 Bb3 h1B Ba2 Bg2 Bb3 Nh1 Qe4 Rb6 Rc7 Rb7 Ba2 Qg3 Qd5 Be4 Bb3 Beh7 Qg2 Qgf3 Rc3 Na3 Bf7 Bb1 Rd3 Nc4 Ne6 Bb6 Nc5 Ba7 Qb3 Bb6 Bh8 Ba7 Qb2 Bb6 Ncd7 Bd4 Nc5
4nB2/2Q1bbNn/1rP3rN/K2kb3/3qqPb1/N2B1R1r/P3R2r/1QRR4 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 f4 g5 h4 b5 c4 e5 c6 d5 c5 e4 c7 b3 Kc3 b2 Kb4 g4 h6 g3 h5 g2 h7 e3 h6 d4 f6 Ke6 f7 e2 Qa4 e1B+ Nd2 b1Q+ Bb2 d3 Qd1 Be7 f8R Nd7 Nf3 g1R Nh4 Ra3 Re8 Ngf6 Nf5 Kd5 Ng7 Nf8 Rh3 Rg2 Rf3 Be6 c8Q Rg6 Qc7 Bf7 Qc2 Rb3+ Ka5 b4 Nc4 d2 c6 d1B Na3 Bc3 Bd3 Be5 Bd4 Rc3 Bc5 b3 Qb2 Qc2 Qb1 b2 Bd6 Qe2 Bc5 Qe4 Bd6 Rg8 h8R N8h7 Bb4 Qd6 Rd8 Rc2 Rd7 Rb8 Re8 Rb6 Rdd8 Rh2 Bc5 Ng5 h7 Rh3 h8N Ngh7 Rf1 Bg4 Rf3 Bf8 Re7 Ne8 Re6 Be7 Rd7 Bg8 Nf7 Rh2 Nh6 Bf7 Qg1 Rh3 Rc1 b1R Qe1 R1b2 Qb4 Rbh2 Qb1 Qd4 Rd8 B5f6 Re2 Be5 Rb8 Qe6 Bd6 Bd8 Bf8 Be7 Rd1 Qf5 Rb7 Qfe4 Rb8 Rb3 Rb4 Rb2 Rc4 Rb6 Rcc1
b1n1rrB1/2k1Q2q/2PqrPnn/1r5R/1P3R2/1B6/1nNBBb2/1NQ1R2K b - - 0 1 illegal: No possible last move, all moves rejected
2rNB3/bn2Q2q/1PQ1qPR1/N1Rb2r1/qB2q2B/1P4R1/3r2nK/1kB2r2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 f4 Kd6 Kf2 c5 g4 h5 Kg2 a5 b6 e5 g5 c4 f6 a4 g6 h3+ Kh2 c3 g7 a3 f7 c2 f5 h4 f6 e4 Bg2 a2 Na3 e3 Qe2 Ra5 Qf1 e2 Bh6 e1Q Bf3 c1R Bg2 Na6 Qc4 Ne7 g8R Qe6 Be3 Nc5 Nf3 Nb7 Rg1 Qc7 Rg6 Rf1 Bc1 Nf5 Ne5 Ne3 Nc6 Rg8 Bh1 Ng2 Nd8 Rb5 Rb1 a1Q Rg3 Be7 f8B Bd7 Bfh6 Bc6 Bhg5 Rd1 Qa4 Rd2 Qa8 Bf8 b3 Qh7 Rb2 Qa2 Rc2 Rc5 Nb1 Qa4 Na3 Ra5 Rc5 Bh6 Be3 Bf4 Bf2 Rg5 Qc8 Ra8 Be1 Na5 Qb7 Rc8 Qa8 Nb7 Nc4+ Kd7 Bf2 Bb8 d6 Bd5 Na5 Ba7 Be1 Ke8 d7+ Kf8 Ndc6 Kf7 d8B Kg6 Be7 Kf5 Nd8 Ke4 Bf2 Rh5 Rg6 Kd3 Bd6 Rg5 Bf8 Bc4 d5 Kc2 d6 Kb1 d7 Bd5 Bd6 Ne3 Bf3 Ng2 Bh5 Ne1 Rg3 Ng2 Rg7 Qhe4 Be8 Qh7 Kg1 Qhe4 Rg6 h2+ Kf1 h3 Bf8 Nd6 Qc6 Nb7 Bd6 Rd4 Be1 h1Q+ Kf2 h2 Bb4 Rg4 Bdf4 Rd3 Bg5 Rd1 Bh4 Rg5 Rg4 Rd2+ Kg3 Qd1 Kh3 h1R+ Kg3 Re1 Kh2 Rf1 Rg3 Qdg4 Nf7 Qh5 d8Q Qh6 Qe7 Qh7 Nd8
5R2/3N2rR/Q2Rnqbb/2q2Bn1/1PPr1bnp/1PNB1k2/1QBBr3/3K4 b - - 0 1 legal: proof: h4 c5 e4 b5 d4 cxd4 a3 g5 hxg5 f5 exf5 b4 axb4 Bb7 Kd2 Ba6 Ke1 Bc8 g4 Kf7 c4 d5 f4 e5 g6+ Kf6 b3 a5 g7 h5 Ba3 e4 Bh3 a4 Bc1 d3 Qf3 d4 Qf2 d2+ Kd1 a3 Bf1 a2 Ba3 h4 Nc3 e3 Bb2 Ra7 Be2 Nc6 Nf3 Nh6 g8B Rg7 Bc1 Qb6 Re1 Nd8 Bh7 Nhf7 Bd3 Qc5 Ne5 Ne6 Bg6 Nfg5 Nd7+ Ke7 f6+ Kd6 Rb1 a1Q f7 Bb7 f5 Be4 f6 e2+ Kc2 d1R Bf5 Rh5 Bd2 Rh6 Rg1 e1B Rb2 Rhh7 Ra2 Rh5 Ra7 Qa6 Qe2 Bg3 Rc7 Bf4 Rg3 Be7 f8Q Rh6 Qe8 Bf8 f7 Re1 Qh2 Re2 Kd1 Rh5 Bc2 d3 Qc8 Qab6 Qa6 Rh8 Nb8 Ke5 Rd7 Qd8 Rd6 Qf6 Rg2 Rgh7 Rg3 Bh6 f8R Rg7 Rf3 Rhg8 Rf7 Rd8 Rf1 Nh7 g5 Rd7 g6 Nhg5 Rc6 Rd4 Rd6 Rg8 Rh7 Rg7 Be1 d2 Qf2 Re7 g7 Rb7 g8B Rg7 Bh3 Bg6 Bhf5 Rd5 Qg2 Kd4 Nd7 Ke3 Bcd3 Rd4 Bf7 Nc7 Bd5 Nce6 Bd5e4 Qc7 Kc2 d1N+ Kc1 Qc5 Bc2 Qa7 Bed3 Nf2 Qh2 Ng4 Kd1 Rf2 Bd2+ Kf3 Re1 Qc5 Re2 Nd8 Re8 Nde6 Rf8 Re2 Qh1+ Kg3 Qhb7 Kf2 Qa3 Kg3 Qba6 Kf3 Qb2
2nq2Q1/q1Bk2bN/3N4/b1N5/1p1n3R/1QrrQR1P/PK2Q1Pr/1B2qb2 b - - 0 1 illegal: No proof kernel
1bnQ1qR1/3KBN2/q1n3B1/QN2q1P1/1p2Prrr/1Pb2Bk1/R1N2n2/N7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 b4 Ra3 Bd7 Ra1 Bb5 axb5 Bc5 Nf3 Be7 Ng1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 c5 Kf5 a5 d4 h5 g4 f3 e4 f6 g6 f2 g7 a4 b3 a3 b6 c4 b7 a2 Ne2 c3 Bg2 f1Q+ Bf3 c2 Nbc3 h4 Rg1 h3 Bg5 Nc6 b8N c1Q Qc2 h2 Nb5+ Ke7 Qb1 h1N d6+ Kf7 d5 Qb2 d7 Rh4 d6 Nf2 Ned4 Nge7+ Kf4 Kg6 g8B f5 Nc2 Qb6 d8N Nc8 d7 Qa6 Nf7 Qh8 Qb2 Bd6+ Qe5 Bc7 d8Q Qh5 Nd7 Bb8 Nc5 Qh8 Nd3 Ra7 Re1 a1B Re2 Bc3 Na1 Rd7 Ne1 Rb7 Nfd6 Rg7 Be7 Kh6 Qd5 Rg5 Bf7 Qe5+ Ke3 Rg8 Ra2 Rg5 Qa5 Rg7 Nec2 Rg8 Bf8+ Kg5 Bg6 Rg7 Bg2 f4+ Kf3 Rh8 Nf7+ Kh4 Bh1 Kh3 Qdd8 Rh4 Bd6 Qc4 Bf8 Qcc5 Be7 Qcd6 Ke2 f3+ Ke3 Nd3 Rg2 f2 Rg1 f1R Bf3 Nf2 Rg2 Nh1 Rg1 Qdc5+ Kd3 Qcd6+ Kc4 Nf2 Rg2 Qd7 Rg1 Qe8 Rg2 Qf8 Rg1 Qf4 Kd5 Kh2 Ke6 Qe5+ Kd7 Kh3 Rh1+ Kg3 Rh2 Rgh7 g5 Rg4 Rh1 Rhh4 Rh2 Rf4 Rh1 Rhg4 Rh7 Rh1 Rh8 Rhh4 Rg8
1rk1N2n/NNBR1q2/K2bN1B1/4P3/1bPq4/2Pr1B1R/b1p1Q3/Qnq1r3 b - - 0 1 illegal: No proof kernel
2N5/r6N/qr1bKn2/B1RPQ2N/B7/1qRbr2k/n1Pp3P/1nQq1NR1 b - - 0 1 illegal: No proof kernel
rbnbq2Q/r3q3/5QB1/k1PR1Kb1/1p1B3q/Rn1rN1P1/1P2Q1N1/5RQ1 b - - 0 1 illegal: No possible last move, all moves rejected
4rb2/1Q1NBR2/1NNqb3/PKQ3BB/n2R1pn1/2PN2b1/2P1rkq1/4n2q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 b4 e5 fxe5 axb4 Na3 c4 Nb1 c3 dxc3 Rh7 Nd2 Rh6 Nb1 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 a4 Ke4 h4 d5+ Kb5 f5 e6 g5 h6 b6 e7 d4 e8Q+ Be6 h7 b3 a5 b2 h5 g4 h6 d3 Rh4 d2 Qf7 Ke3 Nf3 g3 Na3 b1N Qb7 g2 Ne1 g1B Nc4+ Kf2 e4 Na6 e5 Bh2 Rd4 Qd6 Be2 Nc5 Bh5 Re8 Ba3 Na4 Nd3+ Kg3 Qdh1 d1Q Qhc6 Qf3 Qc5 Nd2 Rf1 Nf6 Bc1 Rg8 h8B Ng4 h7 Qg2 Bf6 Nf3 h8N Ne1 Bcg5 Rg7 Ng6 Rge7 Kb4 b5 Nb6 Kh3 Rff4 Bg3 Rf3 Kh2 Rff4 Kg1 Rf2 Rc7 Ne7 Rd7 Nc6 Rde7 Rd2 f4 Re2 Bg8 e6 Kf1 Re5 Kg1 Rf5 Bf7 Kb3 b4 Kc4 b3 Kb4 b2 Kb5 Rc7 e7 Be6 Bh8 Rd7 Rf7 Kf1 Bhf6 b1Q+ Qb4 Qd1 Qc4 Qdf3 Qc5 Qh1 Bh6 Qfg2 Bhg5 Red8 e8N Re7 Bh8 Ra8 Nf6 Rae8 Nfd7 Kg1 Nc1 Kf2 Be5 Bb3 Bef6 Re2 Be7 Be6 Nd3+
2NB3B/Rr6/1q1n2bq/pkn2Rq1/3PNQ2/K1bP1N2/1B5P/Q2r1rbB b - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 hxg4 c3 f5 exf5 d4 cxd4 Be6 Qf3 Bd7 Qd1 Bc8 b4 Kd7 f4 c5 b6 Kc6 b7 e5 d3 g5 Kd2 e4 Kc2 e3 Kb3 g3 f6 c4+ Kb2 e2 f5 e1R f7 g4 f6 c3+ Ka3 c2 Bg2+ Kb5 Nf3 Na6 b8B Nh6 Bc7 Nf5 Nbd2 Nd6 Ne4 Rb8 Rf1 Rb7 Bh1 g2 Bb2 g1B Qb1 Bh6 f8Q c1Q f7 g3 Ba5 Qdg5 Bd8 g2 Ra2 Bf5 Qa1 Qf6 Rf2 Bf4 Qh6 Bh7 f8B Rd1 Bg7 Bd2 Qf4 Rf8 Bh8 Nc5 Rf1 Bg6 Rf2 Kc6 Rf1 Bc3 b5+ Kd7 b6 Kc6 Rf2 Kb5 Rf1 Qb1 Rf2 Qh4 Rf1 Qh6 Rf2 Rbf7 b7 a6 b8N Rb7 Nd7 a5 Nb6 Rf5 Rf1 Be3 Re1 g1Q Nc8 Qgg5 Re2 Bg1 Rg2 Qgh5 Rg5 Rf8 Rf5 Q5g5 Rf7 Rb6 Ra7 Rb7 Bc1 Kc6 Rd2 Qb6 Rf2 Kb5 Bb2 Re8 Ng3 Ree1 Ne4 Rf1 Rg2 Qe7 Rg5 Qf6 Re5 Qfg5 Rf5
7k/1qR1bNbq/B5Q1/pn2rn2/1rP1r1R1/P1qN4/2QRR2P/n2K1NB1 b - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 hxg4 f4 c5 b4 b6 bxc5 Rh7 e4 Bb7 f5 Bd5 Nf3 Bc4 Ng1 Be6 fxe6 Rh8 c4 d5 e7 f5 c6 Kf7 e8R a5 a3 g5 e6+ Kg7 e7 b5 e5 g3 c7 g2 c8N d4 e6 b4 Bd3 f4 Nd2 g4 Nb3 f3 Bg6 g3 Bh5 d3 Bb2+ Qd4 Qe2 f2+ Kd2 f1R Bc1 Qc3+ Ke3 d2+ Qd3 d1N+ Ke2 Nd7 Nd6 Rf5 Bf7 Re5+ Be3 Rh4 Rb8 Rhe4 e8R Nh6 e7 Nf5 Nh3 g1B Nd2 b3 Rb7 b2 Ra2 b1Q Nf2 g2 Nf1 Nc5 Be6 Kh8 Rd2 Nb3 Qc2 Na1 Nd3 Rb8 Rc7 Qb7 Bc8 Bf2 Rg1 Bh4 Qb1 Bf6 Qc2 Bg7 Ke1 Qb6 Ba6 Qb7 Rh1 g1Q Nf7+ Kg8 Ke2 Qg6 Rg1 Qh6 Rg4 Qh7 Nd8 Kh8 Ke1 Nb2 Ke2 Na4 Kd1 Qcb4 Bg1 Nc3+ Kc1 Nb5 Kd1 Qc3 Nf7+ Kg8 Rec8 Qc6 e8Q Qb7 Nd6 Kh8 Qg6 Qd5 Rd8 Rb6 Rdd7 Qb7 Rf7 Be7 Re2 Nh4 Rff2 Nf5 Rfg2 Nbd4 Rd2 Rb4 Rge2 Nb5 Nf7+
5R1b/1B1b1N1n/Q5Pq/P7/2b2n1r/NpN2k2/nB1q1PNQ/KQ3rqR b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Kf7 g4 b5 d4 c5 Kd2 h5 Kc2 e5 Kb2 c4 f6 Kg6 f7 e4 d6 e3 d5 b3 d7 e2 d6 e1Q Nc3 h4 Nf3 b4 Rh2 h3 Rb1 Nc6 Nd4 Ne5 Ka1 Rh4 Rh1 h2 Bg2 Nf6 Ndb5 Qg1 Na3 Bg7 f8Q Nh7 Qf4 Nd3 Bb7 Bh8 Bb2 Ra5 Qg3 Nf4 Qf1 Re5 a5 Re1 Qe2 Rf1 Qh3 Qg8 d8N Qd5 Nf7 Qd2 Qg2 Be6 d7 Bf5 d8N Bd7 Na2 c3 Ne6 c2 Qa6 c1N Nc3 Na2 Qh3 Bb5 Qg3 Bc4 Rd1 Nh3 Qe5 Nf4 Qe1 Qe2 Rd8 Qd2 Rf8 Qg3 Rg1 h1Q Qd1 Qc6 Rh1 Qg1 Qb1+ Qc2 Ng7 Qf6 Nf5 Qd2 Qa8 Qg7 Qa7 Qh6 Ne3+ Kg7 g6 Kf6 g7 Ke6 Nd8+ Ke5 Qa6 Kd4 g8Q Ke5 g5 Kd4 Qe1 Kd3 Ncd5 Ke4 g6 Kf3 Nf7 Rh5 Ng2 Rh4 Bd4 b2+ Kb1 Bb5 Nc3+ Bc6 Qg7 Bd5 Qe5 Bc6 Nd5 Bd7 Nc3+ Nd5 Qh2 Be5 Nc4 Bh8 Ne4 Nf4 Na3 Qe3 Kc2 b1B+ Kb2 b3 Ka1 Qd2 Bb2 Bd3 Qb1 Bc4 Nc3+
1N1qr3/1b6/2n2RPp/2q2P1N/Bn1Rq3/1NQN2Q1/1bnK3P/k3BbRr b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 f5 c4 d5 cxd5 Bb7 exf5 Bc8 f4 gxf4 d4 Kd7 g4 Kd6 b4 c5 g5 a5 g6 e5 b6 e4 b7 e3 b5 h6 b6 f3 Bg2 a4 Nh3 e2 Nf4 f2+ Kd2 f1B Qe1 a3 Nh5 c4 Rg1 Na6 b8N a2 b7 Ne7 Be4 Rg8 Bc2 Bg7 Ba4 Nc6 Bb2 Ra7 Bc3 Re8 Qg3+ Be5 Nd7 Nab4 b8N Bb7 Nc5 e1N Nd3 Nec2 Kc1 Ra6 Be1 c3 Nd2 Ra8 Rb1 a1Q Kd1 Qa2 Rb2 Qc4 Nb3 Ne3+ Kc1 c2 Kd2 Qc5 Bb5 Ra1 Ba4 Kc7 d6+ Kb6 d7 Rb1 Na1 Ka5 d5 Qd4 d6 Qe4 Rb3 Bb2 Rc3 Qg5 d8R Qgh4 Rd7 Qd8 Rf7 Rc1 d7 Rb1 Bb5 Rc1 Rf6 Rb1 Bc4 Ka4 Bb3+ Ka3 Ba4+ Ka2 Nb3 Ra1 Rc4 Rc1 Na5 Ka1 Rd4 Qb6 d8Q Na2 Re6 Be2 Bf2 Re1 Qdd6 Qd8 Qc5 Nab4 Rg2 Rh1 Be1 Bf1 Rg1 Bh3 Rf6 c1Q+ Ke2 Qc3 Qc4 Nec2+ Kd1 Bf1 Nb3+ Kb1 Qc5 Qc4 Kd2 Qb5 Nbc1 Ka1 Qc3 Qc5 Nb3+
3b2Qr/3b1b2/n3P2k/qN1RK2N/2RpB1PB/1nq5/2Q2QPQ/rr1n1B2 b - - 0 1 legal: proof: f4 b5 d4 g5 a4 c5 axb5 cxd4 h3 e5 fxe5 g4 hxg4 Bd6 Rh5 Be7 Rh1 Bf8 Kd2 h5 Kd3 d5 c4 a5 b4 f5 e4 Kf7 c5 Kg7 e6 h4 c6 h3 c7 a4 e5 h2 e7 a3 e8Q a2 e6 f4 b6 f3 b5 f2 b7 Be7 b6 Ra6 Na3 Ra7 Bg5 Bd7 c8B Nh6 Rc1 a1Q Bh4 Na6 b8Q Nf5 b7 Kh6 Nh3 Qa5 Nf4 Bd8 Qf7 Ra8 Rg1 h1R Nb5 Qb2 Qc2 Qbc3+ Ke2 d3+ Kf3 Be8 Nh5 d2+ Kf4 Nd4 Ke5 d1N Qa7 Rb8 Qg8 Bf7 Qb6 Ra8 b8Q Nb3+ Qd4 Ra7 Bb7 Ra8 Kf5 Ra7 Qh2 Ra8 Ke5 Ra7 Be2 f1B Bc4 Be2 Rf1 Rg1 Rf5 Bf3 Bf1 Be2 Nc7 Bb5 Ba8 Bd7 Nb5 Qh3 Qdf2 d4 Be4 Qhc3 Kd6 Rb7 Rd5 Rb6+ Ke5 Rh1 Na7 Rb4 Nb5 Ra4 Kf5 Ra1 Ke5 Qc4 Qd3 Nb2 Be2 Rd1 Rc2 Rdb1 Bf1 Nd1 Rc3 Qcb4 Rc4 Qc3 Qdc2
4n1N1/3N1B2/q3PNKp/R2n2bP/4k2R/N2rn3/2QQB1bP/r1b1qBq1 b - - 0 1 illegal: No proof kernel
1R3K1Q/4n2k/N2np2r/2N1Q1Bq/3r2q1/1QRbNNP1/B1PbrP2/2n4q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kd3 Kg7 Kc4 h5 Kd5 a5 b4 h4 f6+ Kh7 f7 h3 g3 h2 b6 d3 b5 d2 b7 a4 b6 a3 Qf3 d1R+ Nd2 a2 Bc4 Qe8 Qf6 Nh6 Nf3 Nc6 b8Q Ba6 b7 Nf5 Qbe5 Bh6 b8N Nd6 Rf1 Bb5 Na6 h1Q Rb1 a1N Re1 Qg8 Re3 Nb3 Rc3 Re8 Rb2 Qg6 Rb1 Qgh5 f8N+ Kg8 Ne6 Kh7 Nec5 Qg4 Ba3 Nc1 Ba2 Bd3 Nc4 Rd2 Rb5 Rd8 Rb8 Re2 Ne3 Qgh5 Nb3 Qg4 Kc5 e6 g6+ Kg8 g7 Ne7 Bb4 Kh7 Ba5 Nf7 Bb6 d5 Ba5 d4 Bc7 Rd7 Bd8 Nc8 Kc6 Nfd6 Nbc5 Qhh5 Nd5 Bd2 Ne3 Rb7 Be7 Rb4 Kd7 Ra4 Qff4 Qh1 Bg5 Ne7 Qff6 Be4 Qd5 d3 Qb3 Rd4 Qe5 Be1 Qf6 d2 Qe5 d1Q Qf6 Bd3 Qe5 Kg6 g8Q+ Kh5 Kd8 Rh6 Qf8 Kg6 Qff6+ Kh7 Kd7 Bd2 Kd8 Nb7+ Ke8 Nd6+ Kf8 Qhh5 Rc8 Qe1 Rb8 Qeh1 Qh8+
1N6/Bnnb2QK/3PrpB1/2nqNr1R/P1N2b2/2R2q1k/2BP1Q2/1B2r2b b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kf3 b5 Kf4 g5+ Kf5 c5 a4 g4 h4 c4 e4 b3 h6 g3 e6+ Ke7 h7 f6 Kg6 g2 e5 c3 h5 b2 h6 c2 Na3 b1R Bb2 c1N Bd4 b4 Nf3 b3 Ba7 b2 Bd3 Nc6 Qe1 Na5 Rh3 Ncb3 Qf2 Rh1 Nc4 b1B Nd4 Nc5 Bc2 Bd7 Rc3 Re1 Raa3 Nab7 Nc6+ Ke8 e7 g1Q+ Rg3 Qh1 Nb8 Qf3 Rc3 Qa5 d6 Qb5 Bb6 Ra5 Rg5 Qbc6 Ba7 Qfd5 Kh5 Kf7 e8B+ Ke6 Beg6 Ne7 Bgd3 Rg8 h8N Ba2 h7 Bh6 Bb1 Re8 Ng6 Bb3 h8Q Bd1+ Rg4 Bf3 Qg7 Bh1 Bdc2 Bf4 Rg5 Qf3+ Kh6 Nd5 Kh7 Nc7 Rg2 Qce4 Rg3 Kf5 e6 Qed3 e7 Qde4 Rd3 Qd5 Nge5 Rg8 e8B Rf8 Bf7 Re8 Bh5 Re6 Rc3+ Qfe4 Rgd3 Qf3 Bg6+ Kg5 Qe2 Kh4 Qf2+ Kh3 Rd4 Bg5 Rg4 Bf4 Nec6 R1e5 Rg5 Rf5 N6e5 Rb5 Be4 Rb6 Bbc2 Rb1 Bed3 Rd1 Bb1 Rc1 Bdc2 Re1 Rh5+
kN1N1q2/2R1b3/1bP1R3/r3nr2/1R3Q2/2nP1bN1/rNq2BpP/QB4Kn b - - 0 1 illegal: No proof kernel
2Q2q1b/Q1RnB2R/r1PBP3/1K2n2b/5b1N/1B1NQ1B1/P1k1p1r1/1qq3r1 b - - 0 1 illegal: No possible last move, all moves rejected
3q4/2brnK2/2p1QQn1/1bN3qB/r2RP1r1/N1PBkqRR/7P/2b1B1B1 b - - 0 1 illegal: No possible last move
qrkN2B1/1bQR4/q1pK4/3n4/2P2Pn1/r1QQ1qP1/B3b2R/1Rn1b1NQ b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bd6 hxg5 Bf8 e4 f6 e6 Nh6 e7 Kf7 e5 Kg6 e6 Ng8 Bf4 Bh6 Bh2 Bf8 Be5 fxe5 Ke2 Kf5 Kd3 d5 e8Q a5 c4 h5 b4 d4 f4 a4 g6 a3 b6 h4 e7 Ke6 Ke4 h3 b5 c6 b7 h2 g7 a2 g3 d3 b6 d2 Qb3 d1B Qd3 Ra3 Nc3 Nd7 b8Q Nh6 b7 Be2 Qc7 Ng4 b8Q Bb7 Rb1 a1Q Nd5 Nb6 Qh5 Qa2 Qa7 Qa8 e8R+ Be7 Rf8 Bb4 Qa5 Be1 Rf7 Rb8 g8B Qa6 Qac3 Qa1 Ne7 Nd5 Ng6 Qa8 Nh8 Qa6 Qb6 Kd6 Kf5 e4 Rh7 e3 Nf7+ Kd7 Nd8+ Kc8 Ke6 Qa8 Kd6 Qa6 Rd7 Qa8 Nh3 Qa6 Bg2 Qa8 Be4 Qa2 Rg1 h1Q Rg2 Qa1 Rh2 Qf3 Beh7 Ra6 Qd1 Bd3 Rc1 e2 Rh1 Bf2 Ng1 e1N Qh3 Bf1 Bb1 Nd3 Qh4 Qa5 Ba2 Be1 Rb1 Nc1 Qdd3 Be2 Qh3 Qa4 Qg2 Qb5 Rh2 Ra3 Qh1 Qba6 Qc7+
1B6/3bR2k/NP3b1n/K1B2Rq1/1n1QBrpB/1q1NQ2P/3QPb1n/4r1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 b4 f5 d4 Kf7 Kd2 a5 Kc3 c5 b6 g5 d6 Kg7 h6+ Kh7 d5 a4 d7 f3 h3 c4 b5 a3 d6 f4 Kb4 c3 b7 f2 b6 g4 Qd2 f3 Bg2 f1N Qe3 a2 Ba3 f2 Nf3 c2 Nbd2 c1B Ne1 Nh2 Nb3 f1Q Nd3 Be7 Be4+ Qf5 Rf1 Bf6 Nbc5 Na6+ Ka5 Bcb2 b8B Bbd4 Rac1 a1Q Rf3 Qe7 d8B Qf7 d7 Qb3 Rf2 Qg6 Rf5 Nb4+ Na6 Qg5 Rc7 Qg1 Be7 Bc5 d8Q Ra7 Qd6 Bd7 Qdf4 Bcd4 Qd2 Bf2 Qfe3 Kg6 h7 Nh6 Bc5 Rf8 h8Q Rf7 Qd8 Kh7 Bb2 Rf8 Be5 Ra8 Bg3 Rf7 Bh4 Ra7 Rc6 Rc7 Re6 Rc6 Be7 Rc1 Bc5 Re1 Re8 Ba4 Qd5 Bd7 Qdd4 Re7 Bb7 Re4 Ree5 Rf4 Be4 Rc1 Re8 Re1 Re7+
2Q3r1/N3bqnB/1P1NRnn1/kb4N1/N1q2PrR/3PB1B1/r3p2K/2qQ4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 a5 f4 c5 Kf2 Kc7 Kg2 Kb6 g5 h5 d6 e5 d7 a4 f6 e4 f7 h3+ Kh2 c4 g6 c3 g7 c2 d3 e3 Nd2 h4 Rb1 a3 Ngf3 a2 Ba3 c1Q Ng5 a1Q Nde4 e2 Nd6 Qdc7 d8B Ne7 g8Q Qa2 Bg2 Ba6 Be4 Qac4 Bh7 Ng6 Bb2 Be7 f8N Qf7 Nfe6 Nd7 Nc5 Nf6 Bd4 Qfc4 Qe6 Rg8 Qc8 Qf7 Be3 Qcc4 Kg1 h2+ Kg2 h3+ Kg3 Ka7 Na4+ Q7c5 Rb2 Qc1 Rc2 Qd4 Rc6 Qdc5 Re1 h1N+ Kh2 Ng3 Rh1 Nf5 Rb6 Ng7 Rc6 Bb7 b6+ Ka6 b5+ Ka5 Nc4+ Kb4 Nd6 Ba6 b7 Q5c4 b6 Bb5 b8N Ra6 Nde4 Ra7 Re6 Ka5 Nd6 Ra8 Rg1 Ra6 Rg4 Ra7 Rh4 Ra6 Kg1 h2+ Kg2 h1R Kg3 Rg1+ Kh2 Bf8 Be7 Rg3 Bd8 Rg4 Be7 Kb4 Bd8 Be7 Nc6+ Ka3 Na7 Kb4 Nc3 Ra2 Na4 Bf8 Be7 Ka5 Bd8 Nfh5 Bf6 Be7 Bfd4 Nf6 Bf2 Kb4 Bde3 Ka5 Bg3
2BK1N1b/q5rn/1PQB1PNp/Q1N1nn2/P3qNr1/3bk2B/R5R1/qr6 b - - 0 1 illegal: No proof kernel
nN6/4q2k/1P2PnQ1/3bQB2/1p1rnRP1/3rNK1N/1b2Q1r1/1QRq2Bq b - - 0 1 illegal: No possible last move, all moves rejected
8/1Q1krR2/Kp1P2P1/4r1nb/3q2N1/1nR1Qn1P/bq1r1bB1/RB1N1RB1 b - - 0 1 illegal: No proof kernel
BN1K2Q1/3b2N1/p1Rn3N/kN3Q1r/1r2qn2/3P1R1n/P3bP2/qqb1B2B b - - 0 1 legal: proof: e4 c5 c4 f5 exf5 g5 b4 d5 cxd5 Nc6 bxc5 Nb8 h4 gxh4 Ke2 Kd7 Ke3 Kc7 Ke4 h5 Ke5 b5 g4 h3 f6 a6 c6 Kb6 d6 h4 c7 b4 g5 b3 d7 b2 Ke6 h2 d3 h3 g6 Bh6 f7 Qe8 f8N Ka5 g7 Nf6 g8Q Nh5 Be2 Nc6 Bf3 Rb8 Nc3 b1Q Nge2 Na7 Ng3 Rb4 Ba8 Nb5 Nf5 Nd6 Nb5 Bg5 Re1 h1B Ng7 h2 Re3 Bf3 Bd2 h1Q Be1 Be2 Rf3 Bc1 Qd2 Qf1 Qf4 Qh1 Qf5 Nf4+ Ke5 e6 Kf6 e5 d8N e4 Nd7 e3 Nf7 Nh3 Nb8 Rh5 Nh6 Bd7 c8B Qe4 Bcb7 Bf1 Ne6 e2 Ke7 Qg1 Kd8 Qg7 Bd2 e1N Bc3 Qh8 Ng7 Ng2 Be1 Be2 Bc6 Ngf4 Bd5 Qb3 Rb1 Qc2 Rb3 Qb1 Rc3 Ng5 Rc6 Ngh3 Ne8 Qha1 Ng7 Qe3 Rg3 Qe6 Bh1 Qe4 Rf3
N2k1B2/4B2p/bPq2r2/1qR1n1b1/1n1R1qrR/2b3QK/B3NP1P/1nQ2B2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 Nc6 gxf5 Nb8 d4 g5 c4 e5 d5 a5 b6 g4 c6 a4 c7 a3 f6 e3 c5 a2 c6 e2 d6 g3 Qa4 g2 Qa3 e4 Qg3 Nd7 Bg5 Bh6 Qe3 Ra4 Nc3 Ne5 Bf4 Ba6 c8Q Ne7 c7 Nd5 Nb5 Rf8 Qg3 Nb4 Rc1 a1B Rc5 Bg5 d7+ Kf7 Rc4 Qe8 d8R Qc6 Rd7+ Ke6 f7 Bc3+ Rd2+ Ke7 Rc5 Bb2 Rd6 Ba1 Rh6 Bb2 Rh4 Ba1 Kd2 e1N Ke3 N1f3 Ne2 Nd2 Rg1 Bc3 Rh1 Rg8 Rg1 Nb1 f8B+ Kf7 Rh1 Rg6 Rg1 Bd8 Rh1 Ke8 Rg1 Rf6 Rh1 Nd7 B4d6 Ne5 Rg1 Rh6 Kf4 e3 Rh1 g1Q Kf5 Rf6+ Kg5 Nf7+ Kg4 Qgg2 Rg1 Qge4+ Kh3 Qc4 Qg6 Q4e4 Rgg4 Qf4 Qg5 Ne5 Qb8 Re6 c8B Rf6 Qh6 Be7 Nc7+ Kd8 Na8 Qb5 Qa7 Qc6 Be6 Qb5 Ba2 Qc6 Ng1 e2 Qg6 e1Q Ne2 Qec1 Qd3 Qc4 Rd4 Q4b5 Qg3 Qf4 Qb7 Rg6 Qa7 Bg5 Qf7 Rf6 Qb3 Nd5 Qd1 Rc4 Qc1 Nb4 Rd3 Qd2 Rdd5 Rg4 Rd4 Qf4 Bde7+
6Bq/b1NqnPB1/Q3b2B/K5R1/P2Nn2P/Q1r1pnkq/1R2b3/1B2N1r1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 Kf6 h4 Ke5 c4 Kf4 f6 e5 c6 g5 f7 b5 h6 d5 f3 g4 c5 d4 h7 b3 c7 g3 c6 b4 Na3 b2 Nc2 b1B Bd3 e4 Rh2 b3 Ne1 b2 Qb3 g2 Qa3 Be6 c8Q Bc5 f8N Nf6 c7 Ba7 Qa6 Kg3 c8B Rg8 h8B Nc6 f4 Ne7 Ngf3 g1N f5 Bba2 Bg7 b1Q Bd7 Qb3 Bb1 d3 Nd4 Rc8 Bc6 Qd7 Bd5 Rc3 Bc4 Qb8 Bb3 Bc4 Nfe6 Qf8 Nc7 Nf3+ Kd1 Be6 Bch6 e3 Rb2 Ne4 f6 d2 Bd5 Bc4 Raa2 Rb3 Kc2 Be2 Bc4 Rd3 Rb5 Qfe8 Rab2 Qh5 Rg5+ Qg4 Rb3 d1Q+ Kb2 Qe8 Ka2 Rc3 Rb2 Qd3 Bb3 Qdb5 Bd5 Qbd7 Bc4 Rc1 Kb3 Rc3+ Kb4 Qed8 Ka5 Qf8 Bh8 Rg6 B8g7 Qh8 Rh5 Qh3 Bb3 Bg4 Bg8 Be6 f7 Kh2 Qa1 Rg1 Qa3 Kg3 Rg5+
4brBR/1K2bP2/rn3B2/1q1QqQpQ/Q1P2b1N/N1k1r3/4P1q1/R5nR b - - 0 1 illegal: No proof kernel
KNr3nB/2bQ1pP1/1N4P1/R2r2bN/1r4RB/2q1qP2/B1nQk1Bb/4n3 b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 d5 h4 c5 hxg5 d4 Ra3 Bb7 Ra1 c4 d3 Bd5 exd5 cxd3 Kd2 Kd7 g4 Kd6 b4 Ke5 c4 Kf4 b6 h5 c5 a5 f3 e5 g6 h4 c6 h3 g5 e4 b7 h2 b5 a4 c7 a3 c8B a2 b6 Ra4 d6 Qf6 d7 Nc6 b8N Ne5 d8B Rb4 b7 Bd6 Bb2 Bc7 Nc3 Qe7 Na4 e3+ Ke1 e2 Kf2 d2 Nb6 d3 Be6 Qf6 Bg2 Qg7 Qa4 d1R Qd7 d2 Be7 e1B+ Ke2 Nc4 Kd3 Na3 Nh3+ Kg3 Bc4 Nc2 Ke4 Qc3 Nf4 Kf2 Rg1 h1Q Kd5 Qh6 Kc6 Ke3 Bd8 Bg3 Nh5 Ne1 Bf6 Bh2 Be7 Qb3 Be6 Ke2 Bg7 Rh7 Bh8 Qg7 Bd8 Qe3 Bb3 Qge5 g7 Rh6+ Be6 Rf6 g6 Q5c3+ Nc4 Rf5 Bh4 Re5 Bd5 Re8 Be6 Rc8 Bd5 Qce5 Nb6 Q5c3+ Bc4+ Nd3 Nd5 Rb2 Bh3 Bhe5 Rg4 Rb3 Bg2 Bh2 Na6 Rb5 b8Q Rdb1 Nb6 Rd5 Kb7 Rb3 Qa8 Rb4 Bb3 Ne1 Nb8 d1N Bf2 Qec5 Bh4 Ne3 Qa3 N3c2 Qc1 Q5e3 Ka8 Qcd4 Rb1 a1B Rb2 Qdd2 Ra2 Bf6 Ra5 Bg5 Ba2 Qdc3 Qd2+
1qqb3q/2rP1Q1b/6R1/BNR2R1r/rnNbPK2/5Q1k/P1BR1n1p/N7 b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 Kf3 b5 e4 h5 g4 c5 d4 f5 e6 b3 g6 Kf6 e7 b2 e8R c4 g7 c3 d6 f4 d5 Kg5 d7 h4 d6 c2 Bh3 b4 Rh2 b3 Bg2 h3 Bf1 Kh4 g5 Nf6 g8Q Rh5 g6 Nc6 g7 Ng4 Nd2 b1R Re5 b2 Bd3 Be7 Rc5 Nb4 Nb3 Ra4 Qf7 Qh8 g8R Bd8 Bd2 c1B Rg6 Nf2 Be1 Be3 Bc2 Rc1 Ne2 b1Q Nc3 Qb2 Nb5 Bd4 Rhg2 h2 Bd2 Nbd3 Ba5 Kh3 R2g5 Nb4 Rgf5 Qb1 Qd3 Qb2 Rb1 Qc3 Rb2 Qc4 Na1 Qc3 Rcd5 Qc7 Rc5 Qb8 Ke2+ f3+ Kd2 Bh4 d8N Bd7 Nb7 Bd8 Qe2 Be6 d7 Qc8 Qe8 Bg8 N7d6 Bh7 Qf7 Qb8 Bb1 Rc4 Bc2 Qc8 Rcd5 Rc7 Rc5 Ng4 Qd1 f2 Nc4 f1Q Qe2 Nf2 Qd1 B4f6 Ke3 Bd4+ Kf4 Qe1 Bd3 Qc3 Rd2 Qb2 Bc2 Na6 Nbd6 Qbb8 Nb5 Nb4 Qf3+
N4Q1r/1bPR2B1/1Kn1qr2/1B3bN1/3k1nrB/3pqQP1/R4bP1/5NNn b - - 0 1 legal: proof: d4 b5 e4 g5 a4 c5 axb5 f5 exf5 cxd4 Ra3 g4 Ra1 g3 hxg3 Qb6 Ra2 Qc7 Ra1 Qd8 Kd2 Kf7 Kd3 Kf6 Kc4 Ke5 Kc5 h5 c4 a5 b4 d5 f6 h4 f3 a4 b6 h3 b5 h2 b7 a3 f7 a2 b6 d3 Bg5 d4 Nd2 Nf6 Bh4 Nc6 b8N Bb7 Na6 Qd7 Nc7 Ra4 Na8 Qe6 Qb3 Bh6 f8N Nh5 Nh7 Be3 Ng5 Nf4 Kb5 Bf2 c5 Ra6 Be2 Ra4 Nf1 d2 Bd3 d1B Bc4 Nb8 c6 Bc2 c7 Nc6 Kc5 Rb4 Bb5 Bf5 Rd1 a1R Rd2 Ra3 Ra2 Ra6 Qc3 Bc8 b7 Rb6 b8Q Bb7 Qf8 Ra6 Ba4 Rc4+ Kb5 Kd5 Qe3 d3 Qe2 Kd4 Qd1 Ng6 f4 Qe3 Qf3 e5 Nb6 e4 Na8 Bfc8 f5 Nf4 f6 Bf5 f7 Na5 Bb3 Rf6 Ba4 Nc6 Kb6 Rb4+ Bb5 Ra4 N1h3 Rc4 Nd2 Ra4 Re1 h1N Nf1 Qc1 Rb2 e3 Qd6+ Kc3 f8B e2+ Qe3 Ne6 Bg7 Rg4 Ra2 Nf4 Ng1 Qd2 Qf8 Qc1 Rd1 e1Q Rdd2 Qe2 Rdb2 Qce1 Rb4 Qf3 Rd4 Qd5 Qf3 Qde6 Ne3 Qd2 Rd7 Qe1 Rf7 Kd4 Nf1 Q1e3 Rd7+
q4N1R/q1PN3K/QnB3nb/BP6/pn1q1Q2/P4r1N/2R1Q1k1/2rN1br1 b - - 0 1 legal: proof: e4 b5 c4 h5 g4 c5 gxh5 f5 exf5 bxc4 d4 Qc7 dxc5 Qd8 Kd2 Kf7 Ke3 Kf6 Ke4 a5 b4 g5 h4 e5 f4 a4 b5 g4 a3 c3 h6 g3 h7 g2 h5 c2 c6 Bh6 c7 Ne7 Bd2 c1R Nc3 Rf8 Nh3 g1Q Ra2 Qa7 Rc2 Ng6 Bg2 d6 h8N Nd7 Nf7 Nb6 Qe2 Rg8 Nd1 d5+ Ke3 d4+ Ke4 d3 Ba5 d2 Bf3 Bg5 h6 Be6 h7 Bh6 Rh2 Bc4 h8Q+ Rg7 Qh7 Qe8 Qg8 Rd8 Qh8 Rd3 Bh1 Qeb8 Qc8 Rf3 Qa6 Qh8 Nfg5 Qd8 Ne6 Qdb8 Nc5 Qc8 Qe3 Bf1 Qe2 Qg8 Ne3 d1Q Nd7+ Kf7 f6 Ke6 f7 Qga8+ Nd5 Kd6 Kf5 e4 f8N e3 Nc3 Qd4 Nd1 Kd5 Bg2 Qd2 Kf6 Ke4 f5 Rg8 Kf7 Qb4 f6 Qd4 Ng5+ Kf4 Nh3+ Kg3 Rh1 Rf2 Bc6 Rf3 Qd2 e2 Rh2 e1N Qe2 Rh8 Rh1 Rh7+ Kg8 Nd3 f7 Nb4 Rh2 Nh4 Rh1 Rg7+ Kh8 Rg6+ Kh7 Rg5 Ne6 Rg4 f8Q Ng6 Qf6 Rg5 Nef8 Rg4 Ndf2 Kg2 Qf4 Rg5 Nd1+ Qf2 Qd3 Bg7 Ng1 Rh5+ Kg8 Rh7 Rh5 Rh6 Qe2 Rh7 Rhc5 Rh1 Nh3 Rg1 Rd5 Rb3 Rh5+ Rf3 Rh8 Bh6 Qee4 Qd2 Kh7 Qf2 Qd3 Qd2 Ndf2 Qe3 Qe2 Qd4 Nd1+
2R4N/r1PqQpb1/1N1BQ1Q1/r1rqn3/b1P3b1/1kP3Rn/5Q2/2Kn1B1N b - - 0 1 illegal: No proof kernel
1BRq2Q1/qbp1B1q1/1Q1P4/kn1r1PBB/1b4R1/6K1/r1n1P1b1/rN3Q1N b - - 0 1 illegal: No proof kernel
4BrRb/PnqR2b1/1Q1B1rQ1/1Kpk1N1q/1P3P2/1n1nB2r/1N3R2/5R1b b - - 0 1 illegal: No proof kernel
qr6/P2bnKN1/p3N1rP/R1Q3b1/BQ3B1R/QBPk4/r7/2nn1Qbq b - - 0 1 illegal: No proof kernel
2Kn1B2/P1RnqP1Q/p2P1qQN/4b2b/B3N1q1/7r/2RB1rnr/1N1N1k2 b - - 0 1 illegal: No proof kernel
BQ1K3R/p1r1rNRn/5P1b/4B3/NQ6/1brbkBPP/1q2q2q/N4nB1 b - - 0 1 illegal: No possible last move
1b2N1k1/1QBq2bN/B3R3/1rN1Q3/1P3b2/pnr3PN/2bRQ1P1/nr1b2K1 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 g5 e3 g4 e4 g3 hxg3 fxe4 c4 Kf7 f4 d5 Kf2 a5 b4 h5 f5 e5 b6 e3+ Kf3 d4 c6 a4 c7 h4 b7 d3 f6 a3 c5 e2 Kf2 e1B+ Kf3 e4+ Ke3 d2 c6 h3 Qc2 d1B Qe2 h2 Bd2 Nh6 Bc1 Bf5 c8N Ra5 c7 Bg7 Nh3 Ng4+ Kf4 e3 Kf3 Qd7 Nc3 Bfc2 Na4 Bc3 Nc5 Kg8 Ra2 Rb5 Nd6 Na6 Ne8 Be5 c8Q Bb8 Rg1 h1R f7+ Kh7 f8N+ Kg8 Bb2 Rh6 Bd4 Rc6 Nh7 Rc7 Be5 Rc6 Nb3 Rc3 Bc7 Nc5 Rb2 Bd3 Rd2 B3c2 Nd4 Nb3 Ne6 Nf6 Nc5 Na1 Qd8 Ne4 Qf6 Nf2 Qf5 Nd3 Qe4 Nc1 Qe5 Ba7 b8Q Ncb3 Qb7 Bb8 Nf2 Rh4 Rh1 Re4 Rh6 Rh4 Re6 Rh1 Nh3 Rg1 Kg4 Rh1 Qef3 e2 Qf2 e1B+ Qfe2 Bf2 Kf4 Be3+ Kf3 Beh6+ Kf2 Bf4 Qe1 Ra5 Ba6 Rb5 Q1e4 Be2 Qd3 Rb1 Qde3 Bed1 Qe2 Qc6 Kf1 Qd7 Kg1
Q4bN1/1n4k1/1NbB1Rb1/2PrRb2/6B1/K1n2b1Q/1pP2NPN/1qnr2B1 b - - 0 1 illegal: No proof kernel
R1rB1b2/1kNb2q1/7Q/R1p4N/PRn1QP2/1B1Pn3/1n1rn2N/3rn1RK b - - 0 1 illegal: No possible last move
B2BNn1b/3rNN1Q/R2r4/1p3PR1/rqr1P3/1n3KP1/2bR2n1/r4kQR b - - 0 1 illegal: No possible last move, all moves rejected
1r1bK2N/1N1rB3/1k2R3/pb2R1b1/1RQ2Pb1/1R2B3/n1n1P2P/q2Qb1rB b - - 0 1 illegal: No possible last move
2BRrb2/1r1Q1k2/qP4Np/rrP2N2/bb2Q1nN/n2N2KR/5P1B/4r2Q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 g4 a5 b4 d5 c4 e5 b6 h6 c5 e4 b5 a4 g6 e3 g5 d3 f6 d4 g7 d2+ Ke2 a3 Kf3 d3 b7 e2 b6 e1R g6 a2 f7+ Ke7 Nc3 Rh7 Bh3 Qd7 Kg3 Ra5 Nce2 Qa4 Nf4 Re4 Nf3 Na6 b8Q Nf6 g8Q Nb4 g7 Nc2 Qb7+ Bd7 Nh4 Ng4 Qe2 Re5 Qee4 d1R Rb1 d2 Nd3 a1B Rb4 Qb5 Rd4 Qa6 Qbc6 Rh8 Qgh7 Bc3 Rh2 Be8 Rd8 Re1 Qa8 d1R g8N+ Ke6 Bf4 Rb1 Ne7 Ba4 Nef5 Bb4 Qh1 Kf6 Qae4 Re8 Bc7 Na3 Bb8 Bg7 f8N Kf7 Nfg6 Re7 Be5 Rb7 Bf4 Ne3 Bg4 Re8 Rh3 Rb3 Nfe7 Rb2 Bc8 Ng4 Nef5 Rb3 Kg2 Rb2 Bh2 Rb3 Kg3 Rb2 Qh8 Bf8 Qh7+ Kf6 Nc1 Bc3 Qb1 Rbb5 Qd7 Bd2 Qbe4 Bb4 Nfe7 Kg7 Nd3 Kf7 Nef5+
R1K5/1Q1P1B2/nqR2p2/1Qb1N2P/kn6/b1BNPQn1/2rb1bNN/5br1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 a5 Kg4 c5 Kf5 g5 b4 f6 h4 f3 d4 g4 e3 g3 b6 a4 h6 g2 h5 c4 h7 c3 b5 a3 b7 f2 d6 a2 b6 Kc6+ d7 c2 Ke6 Ra4 d5+ Kc5 d6 Kb4 Bb2 c1B Nf3 g1B Nc3 Ra7 Ne2 Ra3 Nf4 Be7 Bc4 f1N Nd3+ Ka5 Nh2 Rb3 Qf3 Ng3 Bc3+ Rb4 Bd5 Na6 b8N Nf1 b7 Qc7 Nc6+ Ka4 b8Q Qb6 Qb7 Rb1 Nce5 Bf2 Bc4 Ng3 Re1 Bd2 Rc1 Nh6 Bd5 Rd8 h8Q Nhf5 Qg8 Bf8 Bc4 Ne7 Qgg4 Nc6 Bb3+ Ka3 Qc4 Ncb4 Rc2 Rg1 Rcc1 Bh6 Ke7 Rh8 d8N Bh3 d7 Bf1 Ne6 Rc8 Nef4 Bg7 Ng2 Bf8+ Kf7 Rc7 Ke8 Bd6 Kd8 Bc5 Rab1 a1B Ba2 Bb2 Ra1 Qe6 Rc2 Rc6 Rcc1 Ka4 Rc2 Rb6 Kc8 Rb5 Qce4 Qd6 Bf7+ Ba3 Qc4 Qb6 Qbe4 Nb8 Qed5 Bf8 Qb7 Ka5 Qcc6 Rd5 Bb2 Rc5 Bd4 Be7 Rb1 Bb2 Qcc7 Bd6 Ra1+ Kb5 Ra7 Ba3 Ra8 N8a6 Bb2 Rc3 Ba1 Ka4 Qc5 Rb3 Qd4 Be7 Rc6 Rb2 Qc4 Rc2 Bc3 Bc5 Qb5+
b4NnK/1PpbRrrP/2Nr2Rk/3n1b2/1NQ5/1QQ1Bq1B/1b2P1bQ/8 b - - 0 1 illegal: No proof kernel
2kb1RNN/1p1q1Pn1/1R2P1Pb/1B2nb2/1Q1N2nb/3rB3/QN1bK3/2Qr4 b - - 0 1 illegal: No proof kernel
7r/P2nR1R1/3Qr1r1/1R3P2/2Q1b1r1/pK1Qq2r/N2B1kP1/bBN2Qnn b - - 0 1 illegal: No proof kernel
RBB2r1n/Pn2P1RN/1np1n3/RQN4K/1q3br1/2PRn1B1/4bk2/3Q1b2 b - - 0 1 legal: proof: e4 a5 d4 h5 b4 axb4 g4 e5 dxe5 f5 exf5 Be7 gxh5 Bf8 Ke2 Ke7 Kf3 g5 Kg4 b5 a4 d5 f4 b3 h4 b4 a5 b2 h6 d4 a6 b3 e6 Kd6 a7 Kc5 f6 d3 f7 Kd4 h5 d2 h7 Ke3 f5 c6 e7 Qd4+ Kh3 g4+ Kh4 Nd7 h6 g3+ Kh5 g2 f6 Nc5 c3 Kf2 Nf3 g1N Ra5 Qb4 Ng5 Ba6 Bh3 Bf1 Bc8 Nf3 Rh3 Nd4 Rd3 Bg7 f8Q Nde6 f7 Nb7 Qe8 Be5 f8R+ Bf4 Rf7 Rb8 Rg7 Ra8 Na3 b1N Nb5 b2 Nc7 Na3 Na6 b1B Nc5 Nc4 Qd8 Bc2 Qb6 Ba4 Qb5 Nb6 Qb3 d1N Be3+ Ke1 Bg1 Ne3 Bh2 Kf2 Qd1 Bb3 Bd7 Rf8 Bc8 Nf6+ Kh4 Nfd5 Kh5 Rhg8 h8R Bc4 h7 Rf5 Qa1 Rf6 Qd1 Rgf8 Rhg8 Rg6 h8B Be2+ Kh4 Bf1 Nh7 Rg4+ Kh5 Be2 Rf7 Bf1 Be5 Be2 Bb8 Bf1 Rd4 Bce2 Rd3 Nec4 Rg5 Ncd6 Rg8 Ne3 Rfg7 Nf7 Be5 Nfg5 Bd7 Rf5 Ra8 Rf8 Bb8 Nf7 Bc8 Nh8 Bg3+
1R1N3B/N7/1B1QbkRb/8/bB1n1PBP/prr3R1/rQ1KP1nb/n4q2 b - - 0 1 illegal: No proof kernel
b4nN1/1QR2rrn/1KR1b2P/2R5/3Q1n1r/Q2B2b1/PNqR2Pp/k1n1B3 b - - 0 1 illegal: No proof kernel
NbN4r/2q1QBRr/Q1P1nRb1/rN6/PB2b2P/nN1n1nR1/5p2/2k4K b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg2 Ke6 c4 Kf5 h4 Ke4 a4 b5 e6 d5 e7 f5 e8Q+ Ne7 c6 g5 c7 f4 c5 f3+ Kh2 f2 e3 d4 c6 g4 h6 g3+ Kg2 b3 h7 b4 Qd7 b2 Be2 d3 Bf1 b3 Ra3 d2 Ne2 Nd5 Rg1 Kd3 e4 Ra5 e5 Bd6 e6 Nf4+ Kh1 Na6 e7 Nb4 e8N Ne6 Nbc3 b1B Qe7 b2 Nd4+ Ke3 Bg2 Bg6 Bd5 b1N Qf1 Nd3 Nb3 Bd7 c8N Bb8 Bc4 Qc7 Nb5 Be4+ Rg2 Bg6 Bb2 d1R Bc3 Rd2 Bb4 Be4 Ned6 Be8 Nb6 B8g6 Ndc8 Rd1 Na8 Rd2 Qc1 Ke2 Qc3 Kd1 Qd4 Re2 Qa7 Rb2 Qa6 Rd2 N3d4 Kc1 Rb3 Na3 Bd5 Rg8 h8R Rf8 Rh7 Rh8 Rg7 Re2 Bc4 Re3 Rf7 Rf3 Rf8 Rf7 Bd5 Rfh7 Rf6 Ne1 Re3 Nd3 Nb3+ Kb1 Bd2 Ng7 Qf8 Bgf5 Bf7 Ne6 Rg6 Kb2 Rg7 Bg6 Rf3 Kc2 Qd6 Kb2 Rg1 Kc2 Bb4 g2+ Kh2 Kb2 Rf6 Kc2 Re1 g1N Re3 Kb2 Rg3 Nf3+ Kh1 Kb1 Qe7 Kc2 Nc5 Kc1 Nb3+
brB4Q/1b2q1B1/1NP3Pn/Pn4rr/B1K3RN/1nQ5/1kn2RRp/b3R3 b - - 0 1 illegal: No possible last move, all moves rejected
2r1B3/K2nb2P/3QpRBN/Q1PBP3/q2nn1b1/RN6/rb5k/1B2rn1Q b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 h6 g6 Ba6 g7 Bc8 g4 Nf6 g5 Ng8 g6 Qc7 Bd2 Qd8 Bg5 hxg5 Kd2 d5 Ke3 Kd7 Kd4 Ke6 h4 Kf5 b4 Kf4 c4 Kg3 e4 a5 e5 f5 c6 g4 Kc5 f4 c7 d4 Kb6 f3 c5 d3 h5 a4 h6 a3 h7 f2 Ne2+ Kf3 Nd2+ Ke3 Rh6 a2 Nb3 Kf3 Ned4+ Kg3 Nf5+ Kf4 Qf3+ Kg5 Be2 d2 Bd3 f1R Bb1 Nf6 g8B d1N g7 g3 Bd5 g2 g8B g1N Bgf7 Ne2 Be8 Ne4 Rf6 Qd7 Nh6 Kh4 Bg6 Nd4 Be8 Bb7 c8B Re1 Bg6 Qe8 Bd7 e6 B7c6 Ra3 Bd7 Ba6 Ka7 Ne3 b6 Be7 b7 Nf1 b5 Rf8 b6 Be2+ Ba4 Nd7 b8Q Rh8 b7 Bd1 Qh1+ Kg3 Qd8 Bg4 Qf3+ Kh2 b8Q Rg8 Qd6 Rf8 Qa5 Rh8 Bd3 Rf8 Rd1 a1B Bb1 Ra2 Rd3 Bb2 Rc3 Nb6 Re3 Qb5 Rd3 Rc8 Re3 Qc4 Bae8 Qc2 Nc1 Nd7 Ra3 Qc4 Nb3 Qa4 Qh1+
K1B5/NrQq2Pn/1R3R1P/2b4r/3rnbb1/P5Q1/3RnpQ1/krQN2B1 b - - 0 1 illegal: No proof kernel
qR3B2/5RPp/2n1QK2/2rQ1R1N/n4rBk/7b/PP5N/1bbRrQrn b - - 0 1 illegal: No proof kernel
1N1q2bb/R2P1P2/3r2n1/2r1k2Q/4N1Pn/1B1p1BR1/2n3r1/1QBBNnbK b - - 0 1 illegal: No proof kernel
b3rR2/1n1p1R1r/2B1QKnQ/3P4/1nbr2bP/qN3NQ1/P3kb2/QRB5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 Nf6 cxb5 Ng8 b4 axb4 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 Kf5 Kd4 e4 c5 h4 g5 b6 b3 h6 b2 d3 g4 b7 g3 h7 g2 e6 c4 e7 c3 e8Q c2 e5 Ne7+ Kg5 f5 e6 f4 Nd2 Ke3 d4 b1B d5 f3 Qf7 f2 Ne2 g1R+ Kf6 Ng6+ e7 Qa5 Bb2 c1N Qg7 Nd3 Nf3 Rg4 Qe1 Nb4 Rg1 N8a6 b8Q Rd4 Qg3 Bf5 Rb1 Nc5 e8R+ Kd3 Bc1 Qa3 Qf7 Bg4 Qe6 Bb7 Rh1 Bd6 Rf8 Re8 Rh2 Ba8 Rh3 Rg8 h8Q Nb7 Qh6 Rg7 Rh2 Rh7 Rh1 Bc5 Rg1 Re4 Ned4+ Re2 Nb3 Be3 Bg2 Rd2 Rf1 Rd1 Qc3+ Ke2 Qa1 Rd4 Bh3 Bh5 Bf5 Bg4 Rf7 Rg7 Bc2 Rh7 Rh1 f1B Bd3+ Kd1 Bb5 Bf2 Rh2 Bc4 Bc6 Be3 Re2 Bg1 Re5 Bf2 Rg5 Nf8 Rg8 Ng6 Qf5 Ke2 Rgf8 Bg1 Qe4+ Be3 Qf5 Bf2 Qe6+
1bK2n2/P2r2Qq/2Br1QRQ/p1BR2P1/2n1BN2/1b5P/rQr1kb2/4Nn2 b - - 0 1 illegal: No proof kernel
3b2QN/1bqbn1K1/BQ1kbN2/1RR1R3/n5NB/Pq4P1/Rp1r1bP1/4r3 b - - 0 1 legal: proof: c4 a5 b4 axb4 f4 d5 cxd5 e5 fxe5 g5 Qb3 g4 Qd1 g3 hxg3 Qg5 Rh2 Qe7 Rh1 Qd8 Kf2 Ke7 Ke3 c5 Ke4 h5 d4 b5 e6 f5+ Ke5 h4 e4 c4 a3 b3 Ra2 b2 Qg4 f4 Nc3 b1B Ra1 b4 Ra2 b3 Nh3 f3 Nf2 h3 Rh2 b2 Bg5+ Nf6 Rh1 h2 Bh4 Bb7 Qg8 Na6 Ng4 f2 Be2 Bg7 Rc1 h1Q Nb5 f1B Nd6 c3 Nf7 Rh6 Nh8 Nc5 Ba6 c2 Kf5 Rh7 Kg6 Kd6 e7 Bc4 e8R Na4 Re5 Qd1 Kf7 Qc7+ Kg6 Kd7 d6 Rd8 d5 Qd3 Kf7 Qb3 Kg6 Rh5 Kf7 Bf8 Kg6 Be7 Kg7 Kc8 d7+ Kb8 d6 Nd5 Rf1 c1B Rff5 Be3 Rg5 Re8 Rgf5 Bf2 d8R+ Qc8 d7 Kc7 Rg5 Kd6 Rgf5 Qb8 Rc8 Bd8 Rc5 Ne7 Rb5 Rh6 Rec5 Be6 Rfe5 Bb6 d8Q+ Bd7 Bg5 Qc7 Qb8 Rh1 Bh4 Rd8 Qa7 Bd3 Qb8 Ba5 Qa7 Re1 Qb6+ Bdc6 Rh5 Bc4 e5+ Kd7 e6+ Kd6 Qa7 Bd7 Rhe5 Rf8 Qb8 Rf4 Qa7 Rd4 Qab8 Rd2 Qa7 Nc6 e7 Bce6 Qb6 Qb8 Qa7 Bd8 Qb6 Qc8 Rg5 Qc7 e8N+ Ke7 Nef6 Kd6 Qa7 Ne7 Rge5 Bbc6 Qb8 Bcd5 Qa7 Bb7 Qb6+
r1R1Knq1/B1N3N1/2n4N/1P2Qp2/rP1qN1qP/2R3Qq/q1b5/1B1kbR2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 e4 a5 d4 c5 h4 f5 h6 g5 h7 c4 d6 c3 d7 a4 Ke6 g4 Kf7 f3 d5 g3 d6 f2 e5 a3 e6 a2 e7 c2 e8N Kb3 Be3 g2 Nc3 Qa5 d8N Ne7 d7 Nec6 Ne6 Bb7 d8R Nd7 N8c7 Bb4 Bd3 f1Q Rc8 Nf8 Rc1 a1Q Ne4 Be1 Ng7 Q5a2 Nh3 g1Q Nhg5 Qh3 Qf3 Qgg4 Rf1 Ra4 Ba7 Rg8 h8Q Ba8 Rd1 c1Q Qg3 Qc4+ Ke8 Qd4 Rf3 Qc1 Nf7 Qcc4 Nh6 Bb7 Bf1+ Kc2 b4 Qcd5 Rdd3 Qdb3 Rc3+ Kd1 Bd3 Qbc4 Qh7 Rh8 Rf4 Qg8 Rf1 Qb2 Nc5 Ne7 Nge6 Q8g5 Rd8 Be4 Bb1 Nc6 Qg7 Nd7+ Kf7 Bc2 Q7e5 Qa2 Ra8 Rc8 Ne4 Nf8 Rb8 Nd8+ Ke8 Qg8 Rb7 Rb8 Ng7 Ra8 Rb8 Nc6 Rc8
5k2/1Q1b2N1/B3QBPQ/r1RnBq2/4pr2/2P1P3/q2b2BR/Nbbn1bK1 b - - 0 1 legal: proof: h4 c5 a4 b5 axb5 g5 hxg5 Qb6 g6 Qb7 g7 Nh6 f4 Qa6 d4 cxd4 g4 Ng8 f5 Qe6 g5 Qg6 fxg6 Bb7 Rh5 Ba6 Rh1 Bc8 Kf2 a5 b4 d5 b6 h5 c3 f5 b5 e5 b7 d3 b6 f4 Be3 a4 Nd2 d4 Ne4 a3 Nc5 d2 Rh3 h4 Ne6 d3 Nc5 a2 Bd4 e4 Rg3 h3 Be5 f3 Qc1 d1B Nb3 h2 Qe3 h1Q Nd4 d2 Nh3 Nc6 b8Q Na5 b7 Nf6 g8B Bh6 g7 Bc2 g6 d1Q Nb3 Qb1 Bg2 Nc4 Ng5 Nb2 Ne6 Nd5 Rg5 Qh3 Bf6 Nd1+ Kg1 Qf5 Qba7 Bd7 b8B Rh7 Qb7 Ra5 Bbe5 Qb2 Rh5 Bb1 Rh2 Qa3 Qc1 Bd2 e3 Rh4 Qb2 Bc2 Rb1 Bd3 Na1 Rf4 Qc2 Qa4 Rb5 Qc4 Rc5 f2+ Kh1 f1B Kg1 Qa4 Qcb3 Bb1 Qc4 Qa3 Qe2 Qa4 Qh5 Qc4 Qh6 Qa6 Bd4 Qa7 Bfe5 Ke7 Bf7 Qa6 g8Q Qa7 Ng7 Qa8 Nb3 a1B Qgc8 Bb2 Na1 Bbc1 Qg8 Nb4 Bc4 Nd5 Qe6+ Kf8 Bf6 Qa7 Bde5 Qa6 Be2 Qc4 Bd3 Qa2 Ba6
K1Nn2kB/2qb2N1/Q2nNPR1/b1q2P1B/2rb2P1/1QRb3b/4Np2/1R2r3 b - - 0 1 illegal: No proof kernel
N1rr1N2/Rbq1BQ2/2Q1PPK1/5p2/Qqr3Bb/QB2r1P1/2n4n/1k1rR3 b - - 0 1 illegal: No proof kernel
4B1Qn/b4qN1/4pNR1/K1RN1P2/3k2P1/1PQ1nbrr/3Bb3/b1R1bNq1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb4 a5+ Ka4 c5 g4 h3 f4 c4 b6 h4 b7 h2 f6 h3 f7 c3 f5 c2 Qd2 Na6 b8R Qe8+ Rb5 Nh6 Ne2 Nc7 Nbc3 Ba6 Ng3 Rb8 Rg1 h1B b3 h2 Bc4 Rc8 Nf1 Bf3 Rh1 Bg7 f8N Nf7 Nd7 Rh3 Rc5 Nh8 Bb5 Qf7 Nf6 Rg3 Bc6 Bae2 Be8 Bf8 Rg1 h1Q Qd1 Rb8 Bd2 c1B Qc2 Qg2 Rh1 Qg1 Rh6 Ba3 Rb1 Bb4 Rg6 Bh6 Rc1 Be3 Rg5 Nb5 Rg6 Na3 Rd1 Rc8 Rc1 Nc4 Kb5 a4 Ka6 Rc6+ Kb5 Kc7 d6+ Kb7 d7 a3 d8Q a2 d5 a1B d6 e6 d7 Bd4 Ncd5 Ne3+ Ka4 Ka6 Qc8+ Ka7 d8N Rd6 Nb7 Ka6 Rb5 Ba7 Rc5 Rc6 Qd8 Rc7 Nd6 Ba5 Rb5 Rc3 Rc5 Rh3 Nh5 Rd3 Ne4 Rg3 Ng7 Bb4 Nc7+ Kb6 Nf6 Bbc3 Re5 Rh3 Ncd5+ Kc5 Qa8 Kd4 Kb5 Bcb2 Ka5 Ba3 Nc7 Bd6 Rc5 Bg3 Ncd5 Be1 Bc6 Ng2 Qg8 Ne3 Be8 Ng2 Nc7 Ba8 Qf8 Rdg3 Qg8 Baf3 Ncd5 Ne3 Qc3+
3r1Q2/Qrb3qQ/P3P3/Q4N1k/RP2Bnn1/2R2qn1/3nnp2/1B1KBbN1 b - - 0 1 illegal: No proof kernel
3RB3/1r1N1p2/K1PrN1r1/2RBbP1B/Q4P1N/k2nB2b/1qq4n/1r1Q2r1 b - - 0 1 legal: proof: d4 g5 f4 b5 e4 c5 a4 cxd4 axb5 Qc7 h4 Qc5 hxg5 Qf5 exf5 Ba6 Ra3 Bb7 Ra1 Bc8 Kd2 a5 Kd3 d5 c4 Kd7 g4 Kd6 b4 h5 g6 e5 b6 h4 g5 h3 b7 a4 b5 Kc5 g7 Kb4 g6 a3 b6 h2 c5 a2 Nc3 Na6 b8Q Ra7 b7 Rh6 Nb5 Nf6 g8B Bg7 Be2 Ng4 Nc7 Be6 Bd2+ Ka3 Rc1 a1Q Qe8 Qb2 b8N Rb7 Bh7 Bf6 g7 Rg6 g8B Bh8 Bf1 e4+ Ke2 e3 Kd3 e2 Be3 e1Q Nd7 Qef2 Nf3 Be5 Nh4 Qg2 Rg1 h1R Qa8 Qh2 Rg2 Rg1 Rd2 Qf2 Bg2 Nh2 Be4 Rh6 Bg6 Qg2 Bh5 Rg6 Be2 Qf2 Nb8 Bd7 Bh7 Bc6 Nd7 Qg2 Rdc2 Qf2 Qe8 Qg2 Ne6 Nb4+ Kd2 d3 Rb1 d4 Bd5 Rf6 Bg6 Qf2 Bh5 Rfg6 Bc4 Bg2 Bd5 Bh3 Rc1 Na2 Rb1 Nc1 Ra1+ Kb4 Ra8 Qg2 Rd8 Qe4 Bf1 Ka3 Ke1 d2+ Kf2 Ra7 Bb5 Nd3+ Ke2 Rb7 Qb1 d1R Bdc6 Nb4 Ndf8 Ra7 Ba4 Ra6 Bd5 Rd3 Qc6 Rc3 Qa8 Rc4 Be8 d3+ Kd2 Rc3 Nd7 Rb3 Qc6 Rb6 Qb5 Rd6 c6 Na6 Qc4 Rb7 Qd4 Nc5 Qf1 Qa2 Kc3 Qb2+ Kc4 d2 Qe1 d1R Qf1 Rb1 Qd1 Na6 Rc1 Nb4 Kc5 Rc7 Kb5 Rb7+ Ka5 Qd3 Rc5 Qdc2 Qe4 Nd3 Ka6 Nf2 Qc4 Nd3 Qa4+
1Q2rN2/rPK1B3/1r1rr2q/1PPNRB2/3b2NR/q3n3/Bk4pn/1b2B1Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kg3 Ke6 Kf4 Kd5 b4 Kc4 e4+ d3 h4 f5 h6 a5 e6 g5+ Ke5 d5 b6 g4 h5 a4 b7 g3 c3 f4 h7 a3 e7 f3 e8B a2 h6 f2 b5 g2 Ne2 d4 Bg5 d2 Bg6 d3 Nf4 Qb6 Rh4 Ra7 Be7 Bf5 Ne6 Nc6+ Kd6 Nf6 e5+ Ng4 Qc1 Kb3 c4 d1Q c5 d2 Nc3 Nh2 Nd5 Bg7 Nf8 Qf3 e6 Bb1 Bf5 d1R Be2 Rd3 Qg1 f1R Bd1+ Kb2 Bb3 Qa6 Kc7 Ne5 Bc4 Rg8 h8Q Re1 h7 Neg4 Bb3 Bd4 Qe5 Rdd1 h8B Rd3 Bg7 Rh8 Bh6 Qa3 Bd2 Qh3 Bb4 Re4 Be1 Ne3 Qd6 Re5 Qd8 Ra6 Qb8 Rb6 Bc4 Bc2 Rc1 a1R Ba2 Bb1 Rc4 Rd2 Re4 Qh6 Rh4 Nd1 Rc3 Ree2 Re3 Rg8 Re5 Ne3 Bg5 Rg6 e7 Rge6 e8N Rec6+ Kd7 Nef1 Re7 Be3 Nf6 Qc3 Bc4 Ra7 Ba2 Qa3 Ng4 Rc8 Re6 Re8 Kc7 Bf2 Nf4 Rdd6 Be7 Bd4 Re4 Re3 Nd5 Re2 Rf4 Ree6 Re4 Ne3 Re5
Qk4N1/bP1Pq3/2K5/B6N/1QB3R1/rNrb1Q2/Rr1qPpr1/r1n2n1Q b - - 0 1 illegal: No possible last move
Nb2q1r1/Pnr4r/RRp1P1q1/2R4b/3r1r1Q/1kP5/1B2R1Q1/1NK1BnQ1 b - - 0 1 illegal: No possible last move
2Q1B1b1/PBpn4/r2qk2R/1Nn3b1/PP2rBNN/2qb2K1/b1b1RNQ1/8 b - - 0 1 illegal: No proof kernel
BNr1Q2R/pR1NK3/1Pr2n1N/1N1b1b2/P5Q1/2r1B2q/qn1P4/rQ2k2r b - - 0 1 legal: proof: e4 d5 exd5 g5 c4 b5 g4 bxc4 h4 e6 hxg5 Bb4 f4 Ne7 f5 Bc5 g6 Bb4 f6 Ng8 g5 Bc5 Bg2 Bf8 Bf1 Bg7 fxg7 Qd7 Nf3 Qd6 Ng1 Qd8 Ke2 Ke7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 a4 f5 d6 h4 b3 f4 d7 h3 Qe1 h2 Qh4 c3 Bb2 c2 Qe1 c1R Ra2 f3 Bh3 f2 b4+ Kc4 b5 Kd3 b6 f1Q Nc3 c5 Kd6 e5 Qd1 e4 Nb5 e3 Bd4 c4 Nf3 c3 Bg2 e2 Be3 e1R Rc2 Nf6 g8Q Na6 g7 Nb4 g6 Ra1 Rc1 c2 Qe8 Rh3 g8N Qc7+ Ke7 Qc4 d8N Bf5 g7 Rc8 Nh6 Qa2 g8Q Rg3 Rb1 c1R Qg4 R1c6 Rc1 Rh3 Qc2+ Ke2 Qb1 Nd3 Ne5+ Qf3 Rc4 Nb2 Nd7 Rc1 Rf4 R6c3 Nc6 Rh5 Rg1 h1B Ncb8 Rh3 Rf1 R3c6 Rf2+ Ke1 Re4 Qg3 Re5 Rc3 Ba8 Bd5 Rh2 Rh5 Re6 Qh3 Rc6 Rg5 Rc7 Rg6 Qge4 Rg1 Qg4 Rh1 Rb7 Qg2 Rh4 Qh3 Nf7 R3c6 Rh8 Rc3 Nh6 R3c6 Qd3 R1c3 Qb1+
3b2bk/BQ1b1B2/n5qN/3n1n2/rR1BR1Q1/P1r1Nq2/1KbPP2p/4B1R1 b - - 0 1 illegal: No proof kernel
2B1b1rR/1rnR4/q2n3B/Q1k1bB1P/1p1N1NPK/2nr4/2N1qrP1/3QN3 b - - 0 1 illegal: No proof kernel
4qB2/3r2n1/K1B1nrqP/B2N2Q1/2n3b1/1pb2R1r/n1QBP1PR/3k2NQ b - - 0 1 illegal: No proof kernel forced: bxLB
1k1R1q1n/4R3/1N1rB1P1/5q1Q/nn1p2b1/1r2q1BR/1QbP1P1R/1Nq1N1K1 b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 g4 d5 f6 Kd7 g5 c5 g6 h5 f7 a5 f8R e5 b7 Kc7 Nh3 d4 Ng1 h3 Qb3 c4 Nf3 e4 Rh2 a4 Ne5 c3 Re8 h4 Bd3 c2 Kf1 a3 Rf8 a2 Qa3 e3 Nf3 e2+ Kg1 e1Q+ Bf1 Qe3 Re8 Bg4 Re4 Qf8 Bd3 Na6 b8N Nh6 Qa4 Nf7 Bc4 Nc5 Be6 Ra6 Ne1 Rd6 Ba3 c1Q Qd1 Na4 Nd7 Rg8 Qf3 Nh8 Nb6 Kb8 Qf5 Rg7 Qh5 Rb7 Re5 Qg5 Re3 Qc3 Rf3 Qce3 Rf7 Qge5 Re7 Q5f4 Na8 Q4f5 b6 Rc7 b7 Rc3 b5 Rd3 Nb6 Rb3 Rg2 h2+ Kf1 h1B Kg1 h3 Rh2 Bc6 Bc5 Ka7 b8R+ Bd7 Rd8 Kb7 Nc8 Kb8 b6 Bc6 b7 Be4 Nc3 Bc2 Nb6+ Ka7 Rc1 a1N Bb4 Ra3 Nb1 Rb3 Bc8 Kb8 Bc5 Bcd1 Rc3 Nc2 Rd3 Nb4 Rc3 Rd7 Rd3 Bc2 Bd6+ Ka7 Bg3 Rd6 Rc3 Kb8 Be6+ Ka7 Nc4 Nd3 Bf4 Rb5 Rg2 Qg3 Nf3 Rb2 Kf1 h2 b8Q+ Ka6 Qb3 Nb4 Nb6 Qh3 Qa3 Rb3 Qb2 h1Q+ Ng1 Qg3 Rh2 Qgf3 Re3 Q3e4 Reh3 Qee5 Bg3 Qe3 Bd7 Ka7 Bc8+ Qb7 Nf3 Kb8 Kg2 Qbd5 Kf1 Qb5+ Kg1 Qbe2 Ne1 Qd1 Qh6 Qc1 Qg5 Nc5 Qh5 Na4 Be6+
8/2br1Q1N/1n1r2PR/QrbkP3/Bn2R1NK/4bqp1/bQ1P1BQ1/4q1B1 b - - 0 1 illegal: No proof kernel
nQ1N4/2Rr1R1b/5P2/Bn3q1R/b1R2PNP/B6r/K2Qpn2/bBq2kb1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 Kb3 Ke4 f4 d5 b6 a5 b7 e5 f6 g5 h6 g4 h7 g3 h3 g2 c5 a4+ Ka3 d3 b4 d4 c6 d2 c7 Ke3 Nc3 Kf2 Bc4 e4 Bd5 d3 Rb1 e3 Bf7 e2 Nf3 g1Q Bg6 Nh6 Ne5 Qd5 Nb5 Nd7 b8Q Bc5 Nd6 Nf5 Nb7 Nb6 Nd8 Nd4 Ng4+ Kg2 Rb2 Bf5 c8R Ra7 Rc7 Na8 Rc2 Nb5+ Kb2 Qe1 Rc4 a3+ Ka2 Bg1 Qc2 d1B Qd2 Ba4 h4 Rg8 h8R Kf1 Rf7 Rd7 Rh5 Be4 Bb2 Qc1 Bc3 Qf5 Bh7 Na7 b5 Rg7 b6 Nb5 b7 Rg5 Ne5 Rg3 Ba5 Rf3 Ng4 Rh3 Qb4 d2 Rc7 d1N Qd2 Re3 Rh3 Rb3 Rhc3 Nf2 R3c4 Rf3 Qc8 Rg3 b8B Rh3 Ba7 Bd3 Bc5 Bb1+ Ka1 a2 Qb8 Qd1 Bd6 Be4+ Kb2 a1B+ Ka2 Qc1 Ba3 Bd5 Rf8 Bg8 Bg6 Bh7 Rf7 Qe5 Bc2 Qf5 Bb1
6kq/B2q1R2/nQQrRPKN/n4R1B/N2p1PP1/4bbb1/nQQ5/5r1b b - - 0 1 illegal: No possible last move
1Bqn1b1b/1B2q1nb/1rr1qPNK/2NQ4/2P3b1/1pPQN3/4N3/kQ3R1R b - - 0 1 illegal: No possible last move, all moves rejected
R2b4/QK3Q1r/n3bPR1/2N1kP2/pB1QPnB1/nr2Q1b1/B2qb3/4qN2 b - - 0 1 illegal: No proof kernel
Q1n5/1rk1bK1B/4P1Qb/P4NR1/q3b2N/p1R1r2B/n2PBb2/1qB1rN2 b - - 0 1 illegal: No proof kernel
4kb1n/bB1q1b1R/NNQ1p2b/K2NqPB1/R1P5/r1r4P/6NQ/2Bn2n1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 f4 g5 c4 d5 b4 e6 f6 d3 Kc3 g4 b6 g3 h6 g2 b7 a4 b5 d2 f5 a3 h7 a2 b6 Bd7 Nh3 g1B Nf4 Ne7 Kb4 d4 Bg2 d3 Qa4 d1Q Qc6 d2 Nc3 Qc7 Ncd5 Qe5 Kb5 Rg8 h8Q Rg3 Qh3 Ng6 f7+ Kd8 Bf3 Ra3 Ng2 Be8 Qh5 Rc3 Ka5 Nd7 b8B Nh8 b7 Ba7 Qh3 Bh6 f8N Bf7 Bc7+ Ke8 b8N Rd3 Be4 Rc3 Bd8 Rgd3 Na6 Rf3 Rb1 a1B Bg5 Bb2 Qh4 Ba3 Ra1 B3c5 Ra4 Rfe3 Ng6 Bcf8 Ne7 Ra3 Nc8 Rec3 Nb8 Qe1 Qf4 d1N Nb6 Qc7 Na6 Qd6 Qc5 Ne5 Qc6+ Qd7 Ne7 Neg6 Qc5 Ne5 Bb7 Nf3 Ned5 Qe5 Qc6 Bhg7 Re1 Bg6 Re3 Ng1 Rh3 Bf7 Rh7 Bh6 h3 Bh5 Qg3 Bf7 Qh2
rrk2R1Q/qrqq4/n2P2K1/b1N5/QB1nP3/1pN2P2/b1BrR2Q/R5Q1 b - - 0 1 illegal: No possible last move, all moves rejected
2Nq4/K1NQ4/NRbPbq2/Pr1Q4/Rp3B2/3nb2q/n1P2R1k/r2bR2B b - - 0 1 illegal: No possible last move
1q1Rn2b/1n4r1/2P2q2/5QBN/5pQ1/PQ1nPK1R/r1nN3N/1bkB1b1N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 h4 Ke6 c4 Kf5 e6 Ke4 h6 f5 h5 b5 e7 g5 e8N d5 e3 f4 c6 b3 h7 g4 c5 g3+ Kg2 b2 c7 d4 c6 b4 h6 b3 Qc2+ d3 Qc3 d2 Rh3 d1N Qg7 Qf6 Qg4 Nd7 Ng7 Nc5 Be2 Ba6 c8N Nf2 Bd1 Kd3 Nf3 Nb7 Nbd2 b1N Nh5 b2 Nd6 Na3 N6e4 b1B Bb2 Bg7 Nh2 Nc2 Kf3 g2 Neg3 g1Q Nh1 Ra7 a3 Qe1 Ndf1 Qb4 Nd2 Qbd6 Bd4 Qb8 Bb6 Kc3 Bd8 Kb2 Ra2+ Kc1 Rb2 Qd4 Bg5 Nf6 Qf5 Rd8 h8Q Nd3 h7 Ne8 Qg8 Qf6 h8Q Rd6 Qhh7 Bh8 Qhg7 Rd5 Ra2 Rb5 Ra1 Rb2 Qb3 Ra2 Qgg6 Ndc5 Qg4 Bf1 Q6f5 Nd3 Qc3 Nd8 Ng7 Nc5 Nh5 Rg7 Ne4 Ndb7 Qc4 Kb2 Be2 Nb4 Qb5 Bc2 Rd1 Bb1 Rd8 Nd3 Nd2 Kc1 Bd1 Nc2 Qb3
3qB3/N3BQbn/1NP2qR1/1rnRP3/Q2pQ1P1/7K/Bkqqb1B1/1rn5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Ra5 Ke7 e6 d3 Kf2 Kd6 Kg3 Ke5 b4 Kd4 c4 h5 e4 d5 g6 f5 c5 f4+ Kh2 f3 g4 h4 e7 f2 e8B d2 g7 h3 c6 Ba6 b6 Rh5 b7 Nf6 g8B Nbd7 b8Q Nh7 b5 Bg7 Qb7 Rb8 Na3 Kc3 b6 d4 Nf3 Bb5 Qe2 d1Q Nd2 Qc2 Ndc4 a6 Kg3 h2 Bg5 Kb3 Bh3 f1Q Qa8 Qfc1 b7 Q1d2 Rf1 h1Q Bg2 Kc3 Rf6 Qf1 Rg6 Rh1 e5 Rg1 Ra4 a5 Qe4 Qf5 Bf6 Rb1 Kh3 Qf1 Rb4 a4 Rb2 Ba6 Rb5 Qff2 Rc5 Kb3 Nb5 a3 Bh4 a2 Be6 a1N Qa7 Rc8 b8Q Qf5 Qbc7 Rb8 Qa8 Ka2 Bf6 Nb3 Bd5 Nc1 Be6 Ndf8 Qf7 Nd7 Be7 Qf6 Qa7 Ra8 Nb6+ Kb2 Ba2 Rb8 Nc8 Rb6 Rd5 Nc5 Qa8 Bb7 Qa4 Ba6 Nba7 Be2 Nd6 Rb4 Ndc8 Rb5 Nb6
3BBQ2/2B1b2r/1Pq3rQ/1qk1p2N/1Rr5/B2KPQbb/R4P1N/b2n1n2 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 cxd5 fxg4 h4 Bg7 hxg5 Bf8 b4 Kd7 d4 Kd6 Kd2 a5 e3 h5 g6 c5 b6 e5 b7 g3 b5 c4 b6 g2 g7 a4 Qf3 c3+ Kc2 h4 Qg4 a3 Ba6 h3 Qf5 h2 Qh7 a2 Bb5 Bh3 Be8 Be7 Nd2 Qd7 Ne2 Na6 b8Q+ Nc7 Nf1 Qb5 Nf4 Nf6 g8Q Nh5 Qg4 Ng3 Nh5 Ra4 Qge4 Rg8 Qh6+ Rg6 Qf3 Rc4 Kd3 c2 Bb2 c1Q Ba3+ Qc5 Rb1 a1B Rb4 Qb5 Rg1 h1R Nh2 Nf1 Qc8 Ng3 Qcf5 Nf1 Qff8 Ng3 Rd1 g1B Rd2 Nf1 Ra2 Qa6 Bc6 Nb5 Be8 Nc3 Bf7 Kd7 d6 Nd1 Be8+ Ke6 d7 Kd6 d8B Qb5 d5 Kc5 d6 Qc3+ Ke2 Qc1 d7 Qc3 Ng4 Bh2 Bc7 Bg3 d8B Qc2+ Ke1 Qe4 Ke2 Qec6 Kd3 Bg2 Ng7 Rh5 Nh2 Bh3 Qhh8 Rh7 Nh5 Qf6 Qhg7 Qfc6 Qh6
2BK1krr/3Qn1qn/1P1P1BR1/1r2R3/1N1nPp2/NB1B4/2R5/q1bb1r1Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 f5 Kf3 a5 b4 c5 e4 h5 g4 h4 d4 h3 d6 h2 d7+ Kf7 g6+ Ke7 d5 c4 g5 a4 d6+ Ke6 g7 Kf7 g6+ Ke6 b6 c3 b7 a3 b5 a2 b6 c2 Ne2 Kf6 Bb2+ Ke6 Nec3 c1Q Rg1 h1N Na3 Nf2 Bd3 Nh3 Nd5 Nc6 b8R Nge7 Nb4 Qc7 d8Q Ba6 Rb1 a1R Bf6 Ra2 Ra1 Rb2 Ra2 Qa1 Qe1 Rb1 Rc2 Bc4 Rg5 Bb3 Qh1 Qb7 Qc7 Rb2 Re8 Nd4+ Kg2 f3+ Kg3 f4+ Kg4 f2 Qc6 f1R Qb5 Nc6 g8B+ Kd7 Re5 Ng5 g7 Nh7 Rb8 Ba4 Bb3 Rbb1 g8B Bg7 Bgd5 Qc7 Rb7 Ke8 Be6 Kf8 Bc8 Nd4 Qd7 Qcc3 Rc7 Qcb2 Rg2 Rb8 Kh4 Ra8 Rg6 Qg2 Bbc4 Bd1 Bb3 Rg8 Rc2 Bh8 Rh6 Qg7 Rg6 Ra5 Be6 Rb5 Bb3 Rb2 Rc6 Rg2 Rc2 Rh2+ Qh3 Nf3+ Kg4 Qh6 Rd5 Bg7 Bg5 Bb2 Bf6 Bc1 Rdc5 Nhg5 Re5 Nd5 Kf5 Qg7 Qg4 Rhh8 Qgh3 Nh7 Ke6 Ne7 Kd7 Nd4 Kd8 Be3 Qe6 Bc1 Qd7
1b2q1B1/5r1Q/np2P2K/2BRbN1b/b3P1k1/Q2r2R1/RB2B1Pq/N2n3n b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Ke7 Kg3 f5 Kh4 c5 Kh5 c4 e4 b6 d4 f4 a4 f3 a5 f2 e6 c3 a6 b3 g6 Kf6 g7 b2 d6 c2 a7 Ne7 g8B Nf5 d5 Qe8+ Bf7 Bg7 d7 Ne3 d8R Bd7 d6 Na6 Qg4 Rf8 Ne2 Nd1 Ng3 Ba4 Nd2 b1Q Be2 f1B d7 h6 Ba3 c1B Nb3 Bf4 Bc5 Bb8 Rh3 Qc1 Ra3 Qf4 Nf5 Qh2 Ra2 Ke5 Kg6 h5 Na1 h4 Rf3 h3 Qh4 Bf6 Kh7 Bh8 Bg8 Rf7+ Kg6 Bg7 Qh7 Bf6 Re3 Kf4 Kh6 Bfe5 Rf3+ Kg4 Nc2 Bbd6 Na1 Rc8 a8Q Bb8 Be3 Rc3 Bc5 Nc7 Qa5 Na6 Qb4 Rd3 Qa3 Bbd6 Ra8 Bb8 d8B Qg3 Bh4 h2 Bf6 h1N Bh8 Ba7 Rd8 Bab8 Rd5 Qh2+ Kg6 Bg3 Bhd4 Bge5 Bb2 Rc3 Bb5 Be2 Bc4 Rd3 Bb5 Qg1 Kh6 Qh2+ Nh4 Rd4 Rh3 Kf4 Nf5 Bh5 Be2 Rd3 Rf3+ Kg4 Rg3+
N1rnR3/bBk4q/PNB5/2NQK2n/nqb1p2R/B5P1/1r1n2PQ/N3b3 b - - 0 1 illegal: No possible last move
3nb1N1/2K1B1B1/P1b1B2p/P1N1nQkP/3R1nqR/3r2nr/1qR1Q3/4R1q1 b - - 0 1 illegal: No possible last move
B3Nq2/1r1nQ1q1/p2BKb2/nnRQN1r1/Bn2QkP1/3Q4/b1PP4/R5r1 b - - 0 1 illegal: No proof kernel
3B2nK/1r2B1rP/1Q4RQ/bq2B1Rb/1p1B2N1/3Nqb1k/1P3qP1/N4bn1 b - - 0 1 illegal: Other
q7/4B2P/BPp1q1nQ/1RP1kb1N/Q3b1R1/1BB2r1n/n2N3b/K1N1r1n1 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 g4 hxg4 d4 f5 exf5 Qe7 dxe5 Qd8 Kd2 Ke7 Kc3 a5 f4 d5 h4 g5 b4 a4 Kb2 c6 c4 g3 c5 g2 f6+ Ke6 f7 g4 f5+ Ke7 b6 g3 e6 Kf6 b5 d4 e7 d3 e8B d2 h5 Ke5 b7 Qd6 f6 Kf4 h6 Ke5 h7 Ne7 b6 Ng6 Ne2 g1N Rh4 g2 Rg4 Na6 b8N a3+ Ka2 Rg8 Qa4 d1B Nd2 Bc2 Rb1 Qe6+ Ka1 a2 Rb5 Bd6 f8Q Be4 f7 Nh3 Qh6 g1N f8B Nb4 Be7 Rf8 Bf7 Ra6 Bg8 Rf3 Ba3 Ra7 Nc1 Rd7 Bf7 Bc7 Bg8 Rdd3 Be2 Rde3 Bd3 Re1 Nd7+ Kf5 Bf1 Bh2 Nf6 Ke5 Bd3 Qd6 Bb3 Bcf5 Nh5 Qe6 Kb2 Nd5 Bb4 a1Q+ Kc2 Qa3 Ba5 Nb4+ Kb1 Na2 Ka1 Qf6 Rb4 Qf7 Ba6 Qe8 Rb5 Qa8 Bc2 Qe3 Bb3 Qe2 Bb4 Qc4 Ba5 Qe6 Bc3+
bR1b2b1/kN3NRP/Prq3b1/K2Rnr2/5p2/2B2qQ1/N3rPBR/2Q4n b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 Bd6 cxb5 Bf8 b4 axb4 Kd2 g5 h4 c5 a4 f5 e4 d5 a5 Kd7 a6 Kc7 h6 Kb6 h5 d4 h7 g4 h6 d3 e6 g3 e5 c4 e7 b3 Kc3 d2 Kb4 f4 e6 b2 Qh5 d1B Ra4 c3 Rh4 c2 Qg5 g2 Rh2 Qd3 Nh3 g1R Nc3 b1B Bb2 c1Q Bg2 Bf3 Qg3 Nf6 Ng5 Re1 Na2 Ne4 Nf7 Qc6 Ra5 Re2 Bc3 Ka7 Ka4 Qdd5 e8N Be7 Ned6 Nd7 Nb7 Rf8 h8Q Rb8 h7 Bd8 e7 Ne5 e8R Be6 Re7 Qd3 Qf6 Bc4 Qd6 Be6 Qc7 Qdd5 Nh8 Bg8 Rg7 Rf5 Nf7 Bd3 Qe7 Bb1 Qa3 Qd3 Qc1 Qe3 Qg5 Ng3 Qg6 Nh1 Qg3 Bfe4 Kb4 Qf3 b6+ Ka8 Nbd6 Bd5 b7+ Ka7 Rc5 Rh5 Rb5 Bg6 Ra5 Bde4 Rc5 Rf5 Rd5 Rc8 b8R Rc7 Rdb5 Rb7 Ka4 Rb6 Ka5 Qc7 Rc5 Ba8 Nb7 Qcc6 Rd5
1BQ5/2N3Pk/K1b4n/R1r1N2q/PrrR1b2/2P1qN2/Bn2Q1p1/N1B2br1 b - - 0 1 illegal: No proof kernel
2q1r1Q1/R5P1/2BPq1k1/3qn1R1/qr1BPB2/1bKB4/1NprQ1nN/2b1N3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 d4 c5 Kd2 a5 g4 f5 b4 Kf7 e3 h5 b6 c4 b7 a4 b5 a3 b6 f3 d6 f2 d5 h4 d7 h3 d6 a2 Kc3 f4 Bd3 f1Q Nd2 f3 Qe2 f2 Ndf3 h2 Ne1 Rh4 Ngf3 Nh6 Rg1 h1Q Nh2 Nc6 b8B Qh3 b7 f1R Ba7 Rf2 b8N Qd5 Na6 Ne5 Nc5 Nf5 Na4 Bh6 Nb2 Kg6 Bd4 Qe7 d8Q Be6 Qh8 Re8 Qf8 Bg8 Bd2 Qee6 e4 Rh5 Bc1 Nh4 Bf4 Bf7 Qh8 Ng2 Qg8+ Bg7 Rd1 a1Q Rb1 Qaa8 Ra1 Rh8 Ra7 Rb8 Qd8 Bh6 Qc8 Re8 Qd8 Kg7 g6 Rb4 g5 Qac6 Qb8 Qa4 Qa8 Qc8 Qb8 Qhe6 Qa8 Kg8 g7 Kh7 g8B+ Kg7 g6 Kf6 g7 Kg6 Bg3 Bc1 Bf4 Qaa6 Qe3 Rd2 Qe2 Qa4 Bh7+ Kf6 Bf5 Bg8 Bg4 Kg6 Qb8 Qe7 Bd7 Qee6 Qa8 Qf5 Qc6 Qc5 Bg3 Ne3 Bf4+ Qg4 Rg3 Ng2 Qd5 Qcb5 Bc6 Be6 Bde3 Qba5 Kd4 c3+ Qc4 c2 Kc3 Bg8 Bd4 Q5b5 Qc5 Bb3 Qd5 Qba5 Qg8 Qd5 Rh3 Qgd7 Rh5 Q7e6 Rg5+
1rqQ2nQ/nr4P1/2Qp4/n2Pb1KN/R4N2/BNn2kPb/qB4r1/5RQ1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c6 b4 Qc7 b6 Bh6 b5 Bg7 b7 Bf8 b6 Qd8 Bb5 cxb5 Ke2 Kf7 Kf3 e5 Kg4 h5+ Kh4 a5 c4 d6 d4 e4 f4 b4 c5 b3 g3 a4 c6 e3 c7 a3 f6 Ke6 f5+ Kd5 f7 Ke4 f6 a2 g6 b2 d5 e2 Nh3 e1R Rf1 Re2 Nf4 Rg2 Kg5 h4 Nh5 Bh3 c8Q Ra7 Qc6 Bg7 f8B Qc8 f7 Be5 Nd2+ Ke3 g7 b1N Be7 Nc3 Nb3+ Ke4 Ba3 Ke3 Qc4 Nc6 b8Q Rb7 f8N Na7 Qc6 Ke4 Bf6 Ke3 Rc1 a1N Ne6 Ke4 Nef4 Ke3 Nc5 Nb3 Ra1 Na5 Nb3 Ke4 Rh1 Ke3 Qg1+ Kf3 Qa8 Bg4 Qb8 h3 Qbc7 h2 Qd8 Bh3 Ra2 Rd7 b7 Rc7 b8Q Rd7 Qgc5 Rb7 Rha1 h1Q Qg1 Rh2 Re1 Qg2 Raa1 Qf2 Re4 Rg2 Ra4 Nh6 Rf1 Re8 Qbc7 Ng8 Q7d7 Rf8 Qf5 Re8 Qh7 Rf8 Qh8 Re8 Re1 Qa2 Rf1+ Rf2 Qdc7 Bd4 Qb5 Qe6 Be7 Reb8 Re1 Nb1 Qd8 Qc8 Bf6 Rg2 Qc6 Bb2 Bd4 Ba1 Bdc5 Bd4 Bb2 Nc3 Bca3 Be5 Rf1+
2k2Nnq/1b2R1Pn/1p2P1q1/1R3r2/2QbR2K/BbP5/1r3QB1/2BrNRb1 b - - 0 1 illegal: No proof kernel
B2Q3N/1bqn2P1/P2PkrqB/2N4n/3Bn3/RQ1pbb2/Kb1r4/1Q1QR3 b - - 0 1 illegal: No possible last move
1rNn2n1/4q1PP/2n4P/1Bb1RNB1/4r1N1/Qp2qn2/QN1Rkq2/Kb5Q b - - 0 1 illegal: No proof kernel
qN6/2bq2pK/3RN2P/1kn1P2P/1R3B2/b2QRr2/Bnr2rB1/4QbBr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 d5 Kf3 Kd7 Kf4 f5 e4 a5 h4 a4 c4 d3 b4 d4 b6 Kc6 b5+ Kc5 e6 d2 h6 a3 b7 d3 h5 a2 e7 Qd7 Kg5 f4 Kg6 f3 e8B f2 b6 Ra4 e5 Kc6 c5 Nf6 Na3 Rc4 Qe1 d1R Ne2 d2 Bf7 Rc2 Nc4 Rh7 Bg2+ Kb5 c6 f1R c7 Rh8 Na5 Qd5 Rh3 Nfd7 Nf4 Nc5 Nc6 Nbd7 b8B Nd3 b7 Ba3 Ne6 Rf2 Re3 Nb2 Ba7 Rf8 Nb8 Nc5 Kh7 Qf3 Rb1 a1B Bg8 Bd7 c8R Qc6 Rd8 R8f3 Bf7 Be8 Rd6 Qa6 Bb6 Qa8 Ba7 Ka5 Bg8 Bb5 Bf7 Bf1 Bg8 Nbd3 Rb4 Bc3 Rc4 Nb2 Red3 Rf4 Ng5 R4f3 Rd8 Re2 Qf2 Nd7 Rc7 Nc4 Na6 Ra2 b8Q Rb2 Qe3 Rc2 Qb3 Nb2 Nb8 Bd4 Bc4 Bb6 Ne6 Rde1 Qe4 d1Q Bf4 Qd2 Rc6 Bc7 Qc3+ Ka4 Ba2+ Kb5 Rc4 Rb1 Bf2 Nc5 Qf5 Qd1 Re3 Red2 Qe4 Bd3 Qg6 Re2 Rdd4 Qd2 Qf5 Rh1 Bg1 Qd1 Qe1 Ref2 Qg6 Bf1 Rd5 Qd4 Qd3 Nd1 Rd8 Nb2 Rd7 Qdd5 Rd8 Qdc6 Rd6 Qd7 Rb4+
1Bn1k2B/1r1R1P1q/r1Rq1b2/P2BQ3/R3PpNQ/q2b4/5nqb/2N1K1B1 b - - 0 1 illegal: No possible last move, all moves rejected
r1qbB2k/2n2P2/p2b2KB/2B5/1Nr1R1n1/P2QN1R1/1B4Pr/N1qrq1Q1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 c4 bxc4 hxg5 Ba6 Bd3 Bb7 Bf1 Bc8 d3 c5 Rh3 c3 Rg3 c2 Re3 c4 Rh3 c3 Rh2 Ba6 Rh1 Bc4 dxc4 Qc8 Rh6 Qc7 Rh1 Qd8 Ke2 Kf7 Ke3 Kg7 Ke4 h5 f4 e5 b4 d6 g6 h4 b5 h3 f6+ Kh6 Kf5 e4 b6 e3 b7 h2 g7 Kh7 f7 a6 c5 d5 c6 e2 c7 e1Q c8Q d4 a3 d3 Nh3 d2 Nf2 Qb6 Ng4 Qd6 Qd7 Qee7 Bb5 Qb4 Qd3 Qd8 Ne3 Qba5 Qg1 d1R Nd2 Qb4 Nb3 Bc5 f8B Nf6 g8N Nd5 Be8 Nc6 b8B Nc7 Ba7 Ne5 Bb2 c1B Bh6 c2 Ne7 Bd6 N7d5 Ng4 Bc5 Qe1 Nb4 Qc8+ Kg5+ Kg8 f5 Rh7 f6 Kh8 Kg6 Rd7 Nf1 Bg5 Ne3 c1Q f7+ Bf6 Rb1 Re7 Na1 Re4 Bb6 Rc4 Bc5 Qc2 Rc1 Qcd2 Rc3 Qc1 Qf2 Bd8 Rg1 Qed2 Re1 h1R Qg1 Qf2 Nf5 Rh2 Re4 Qh4 Ne3 Qe7 Rc2+ Qe5 Rf2 Qec3 Rf3 Qe5 Rg3 Qec3 Rd4 Qe1 Re4+
1N2qnb1/1r3PrP/Qq1BN1R1/NN1B1Q2/k6r/Q1R4n/K4Pp1/n5br b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 d4 Kd7 Kd2 a5 Kc3 e5 Kb3 g5 h4 c5 h5 a4+ Ka2 g3 b4 g2 b6 g4 b5 g3 f6 c4 b7 a3 b6 e4 h6 c3 f7 c2 d6 Kc6 d7 e3 d5+ Kc5 d6 Kb4 Rh3 e2 Bf4 c1R Nc3 e1Q Nf3 g1R Nd2 Ne7 Qg4 Ng6 Bg2 Ra7 Qf5 Qee8 Nb5 Ka4 Nb3 Rcd1 Be5 Nf4 Na5 Qc7 d8Q Nd7 b8N Rb7 Bc6 Be7 Bf3 Nf8 d7 Bd6 Qdf6 Rh1 d8N Rdg1 Bd5 Be6 Q5g6 Bf5 Ne6 Bd3 Qh5 Bh7 Qhf5 Bg8 Rb1 Rg2 Rg1 Rh7 Qe7 Rgh2 Qef6 Rg7 h7 Qc5 Qe7 Bc7 Bd6 g2 Rd1 Qd4 Rc3 Rh4 Rdd3 Qc5 Rg3 Nh3 Rg6 Qe3 Bb4 Bh2 Bd6 Bg1 Qef6 Ra7 b7 Qc5 Qd8 Qe3 Qb6 Qc5 Qa6 Qe3 Nd7 Qb6 b8Q Rc7 Qba7 Rb7 Ka1 a2 Nb8 Qc7 Kb2 a1N Ka2 Qcc6 Qc5 Qb6 Qa3#
1Q6/Kn1Q1pn1/3PrqQ1/1rB1b2q/2k1BbPN/3q1P1Q/1b2R3/2q1N1RN b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Nb8 d5 Bg7 Nc3 Kf8 Nb1 Bd7 e6 Bh6 exd7 Kg7 Qg4+ Kf6 Qd1 Bf8 Ke2 Ke5 Kd3 h5 Kc4 c5 b4 a5 g4 a4 f3 h3 b6 a3 Kb5 h2 b7 c4 Qb3 Kd4 Bd2 e5 Qc2 a2 Bc1 c3 Qg6 c2 Bf4 c1B Bd3 e4 Nh3 h4 Nf2 h3 Re1 h1Q Na3 e3 Be4 h2 Re2 Bb2 Rg1 Nc6 b8N Qf6 Kb6 a1B d8Q Nge7 d7 Rh6 d6 Na5 b5 Nf5 Nc2+ Kc4 Nc6 Ng7 N6d4 Rb8+ Ka7 Nb7 b6 Qg2 Qe7 h1Q d8Q Qh5 Qed7 Qf1 Nf5 Be5 Ne1 Bab2 Nh1 Be7 Rf2 Qd3 Nh4 e2 Qh8 Bf8 Be3 Be7 Nc2 e1Q Re2 Qc1 Ne1 Qfg5 Qgh7 Re6 Bc5 B7f6 Qg6 Bf4 Qhh6 B6e5 Qh8 Nd8 b7 Qf6 Re3 Rc8 b8Q Nb7 Qhh7 Rc6 Qhh6 Rb6 Re2 Rb5 Nf5 Qhg5 Qh3 Qh5 Nh4
3N2Q1/BRK1pr1n/N2n1P1k/2b1qB1b/4Pr2/b2b2RB/BP3QRr/4q3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 axb5 f4 c4 Kf7 cxd5 Ke8 Qb3 Nf6 Qc3 Ng8 Qe3 fxe3 Ke2 Kf7 Kd3 Kg7 Kc4 h5 Kc5 a5 d4 c6 f4 e2 g4 e1R g6 a4 g5 a3 d6 a2 d7 h4 b6 h3 f5 h2 d5 Ra3 b7 Rae3 d6 Rd1 Nd2 Rf3 Ne2 Re1 Bh3 Nf6 Nb3 Qc7 d8Q Ref1 d7 Nh7 Be3 Qe5+ Kb6 c5 Ned4 c4 Rg1 h1B Nc6 c3 Nc5 c2 Na6 c1B Rg2 Bd2 Qc7 R1f2 d8Q Bb4 Rag1 a1Q Qe8 Rf1 Nd8 Nc6 b8R Qe1 Qa7 Nd4 Rb7 Rf4 Rg3 Bf3 R1g2 Nb5 Kc6 Nd6 Kc7 Kg8 g7 Ba3 Bg1 Bh5 Qf2 Be6 Qg6 Bc4 f6 Bd3 Qe2 R1f3 Ba7 Rf1 Qf2 Rh1 Qf5 Rh2 Qc8 Bc5 Ne6 Kf7 g8B+ Kg6 Nd8 Bh6 Bge6 Ba3 Qa8 Rf8 Bc8 Bd1 Bcf5+ Kh5 g6 Rf7 g7 Bg5 g8B Kh6 Qc8 Bh5 Qc2 Rf3 Qb8 Be3 Qf2 Rf4 Qa8 Bec5 Qc8 Rf8 Ba2 Rf7 Qe6 Rg7 Qg8 Rf7 Kd7 Ng5 Kc6 Nh7 Kc7
4bq1r/BBNP2Q1/b1qk3R/n2Nn2n/nb6/1B1BPP2/1p1r3Q/1R4QK b - - 0 1 illegal: No proof kernel
1K3BQ1/2nP1RBN/1Rq1NQb1/3p4/1r1P1bb1/bq5R/2P3nR/1kr3rN b - - 0 1 illegal: No proof kernel
2b1n1K1/q1QP3B/N4q1p/bRB3b1/r3kq2/RP2nNNQ/1q1RP1N1/7r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 a5 g4 c5 d4 h6 g6 f3 g5 c4 b3 c3 b6 c2 b7 a4 g7 a3 g6 f6 Rh5 a2 Bh3 f2 Qd3 f1Q Bf5 Ra3 Qh3 Ra4 Nc3 Ne7 g8R Qa5 g7 Na6 b8N Qc5 Nf3 Rc4 Ba3 c1Q Nd1 Ra4 Ne3 Nc7 Bh7 Qb2 Ng2 Nf5 Na6 Be7 Kf4 Ne3 Rd8+ Bd7 g8N f5 Bb4 Ne8 Ba3 Bh4 Ne7 Rf8 Rd1 a1B Ra8 Qc1 Rd2 Bc8 Rg5 Qb2 Bb4 Kd7 Ke5 Qa7 d6 Qfc1 Rh5 Bg5 Bc5 Rf6 Rb8 Qc4 Rb5 Rf7 Rh4 Rf8 Rg4 f4 Nf5 Kc6 d7 Qcc3 Ke6 Qcc1 Nh2 f3 Re4 f2 Nf3 Rg8 Kf7 Kd5 Re7 f1Q d8Q+ Qd7 Qa5 Qa7 Qc7 Qc4 Rd7+ Ke4+ d5 Qcd4 d6 Rg7+ Kf8 Qf6+ Rf7 Qf2 Ng1 Qf4 Nf3 Qa3 d7 Bc3 Ra5 Qb2 Rb5 Qe6 Rf6 Ba5 Rg6 Rf7+ Kg8 Qe7 Rgd6 Rf6 Rc6 Rd6 Rcb6 Qef6 Rb7 Rdd4 Rb8 Ra1 Ra8 Rda4 Qg3 Qb7 Rc2 R4a2 Rd2 Rh1 Qh3 Bb6 Nb4 Qb8 Raa5 Qa7 Na6 Raa1 Ra3 Ba5 Ra2 Rac1 Ra4+ Rc4 Ra3 Ra4 Ng3#
b4Q2/bq1P2Q1/BBnpB1Pb/Nb3n2/2r2P2/1N4n1/kqRQ2KR/4r1B1 b - - 0 1 illegal: No proof kernel
1B1r1QB1/3Pq1PN/1b1Q3q/6QQ/R3r2p/1B1R1P2/4Nknq/2nKnn1b b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 b4 Kd7 d4 Kd6 g4 h5 b6 c5 b7 e5 b5 a5 g6 c4 b6 c3 g7 c2 g5 a4 g6 e3 Bb5 e4 Ne2 h4 Bc4 a3 Ba2 Qe7 Nbc3 Ra4 Bb1 a2 Bd2 c1Q Rh2 Nc6 Rh1 Nf6 g8B Ne5 g7 Nfg4 Bc2 Nh2 Bb3 Nf1 Rh3 Bg4 Rg3 Bf3 Rh3 Bh1 b8Q+ Qc7 Qa8 Qe7 b7 Qb2 Qa5 Rb4 Qc1 Nd3+ Kd1 Rc4 Be1 Ra4 Qd2 Nc1 Qb5 Rb4 Qe8 Rc4 Qh5 Ra4 Bc2 Qb6 Bb3 Qc6 b8Q+ Qcc7 Rb1 a1Q Qb5 Qb2 Ra1 Qc6 Qdd3 Rb4 Ra4 Qa6 Nf4 Qc6 Ne6 Qb6 Ng5 Rc4 f3 Qh2 Nh7 Rb4 Rg3 Qa6 Rg1 e2+ Kc2 e3 Bg3+ Qe5 Qdf5 e1N+ Kd1 Ng2 Ne2 Be7 Qfg5 Bd8 Qd3 Bb6 Qdf5 Nf4 Qf8+ Qe7 Bf2 Ng2 Bg3+ Kd7 d6 Kc6 d5+ Kc5 d7 Re4 Bf7 Rg8 d8Q Rh8 Bb8 Rg8 Nc3 Rh8 Bg8 e2+ Kc2 e1N+ Kd1 Qb5 Qc7+ Qc6 Qcf4 Qg6 Ne2 Qh6 d6+ Re5 Bgd5 Re4 d7 Rg8 Nc3 Rh8 Bdc4+ Kd4 Bg8+ Kd3 Q4f6 Nd2 Ne2 Nf1 Qg3 Ke3 Qgd6 Kf2 Qfg5 Nf4 Rg4 Nfg2 Rf4 Re6 Rfd4 Re4 Bgd5 Rg8 Rd3 Rh8 Qff5 Rf8 Bg8 Rd8 Qf8
RK3n1q/3p2Q1/R1QrbNR1/1n2kP2/2bPn3/Pq2NBR1/1nb2rQB/8 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 g4 axb4 gxh5 Ra5 Nc3 Ra7 Nb1 Ra8 c3 b5 Ba3 e6 Ne2 b3 Bb2 b4 Bc1 b2 Ng1 b3 Na3 Ra4 Nb1 Bb4 cxb4 Ra8 Ke2 Ke7 Ke3 Kd6 Kf4 c5 h4 c4 f6 g6 b5 c3 f7 c2 f8Q+ Qe7 h6 Ra5 h5 Ra6 b6 Nf6 h7 Nc6 h6 Nd8 b7 Ne4 Na3 b1B b8R b2 Qg8 Qe8 Rh3 Bb7 f3 Bd5 Be2 Bc4 Rb6+ Kd5 Qg7 Rf8+ Qf6 Rf7 Qf1 Qh8 Qg2 Rf8 Rg3 g5+ Kg4 e5 Kf5 g4 f4 Kd4 Nh3 Ne6 Nf2 Rf7 Bf3 Nf8 Rb5 Rd6 Rb6 Nc3 Ne4 Nb5 Kg5 Be6 Nc4 Kd5 a3 Ba2 Ra6 b1B Bb2 c1Q Qg6 Qc3 Ne3+ Kd4 Nf6 Bc2 Rg1 e4 Qg7 Bac4 f5 Re7 Kf4 Re8 Nd1 e3 Qg6 e2 Ne3 e1N Ba1 Qg7 h8R Qb2 Rg8 Qh8 h7 Qc3 Rh1 Qb2 Rh6 Re7 Qg7 Re8 Rg6 Nd3+ Kg5 Ke5 Qh6 Qg7 h8Q Qc3 Q8h7 Qh8 Q7g7 Nb2 Qhh1 Kd4 Kf4 Qb4 Bd1 Qb3 Qc6 Re7 Qhg2 Re8 Bf3 Re7 Qh6 Rh7 Qg7 Rh2 Qf1 Rf2 Qg2 Nh7 Rga8 Nf8 Rh3 Kd3 Ke5 g3 Qh1 g2 Rhg3 g1N Qg2 Nd1 Bd4 Nh3 Ba7 Ng5 Bb8 Nb2 Qc5 Rb6 Qc6 Na7 Kd6 Kd4 Kc7 Ne4 Qb5 Rd6 Qc6 Nb5+ Kb7 Rd5 Bf4 Rd6 Kb8 Bcd5 R3g4 Bc4 Bh2 Nd1 R4g5 Nb2 Rg3 Ke5 d4+
r3N2q/3pbk2/Rb1PQP2/3KQqb1/B1Q2rBB/1Nb1R2q/nQ3P2/6n1 b - - 0 1 illegal: No possible last move
2nr1k2/N1P2P1N/1P1RrpQn/2N3Bb/2Q5/b4RbK/B3q2b/r1Q3Qq b - - 0 1 illegal: No possible last move
1QR1bb1N/2p1q1Bk/r1r5/2bKnBQ1/qB5P/qNbP4/2Bn1R1P/1N6 b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 a4 exf4 g3 b5 axb5 h4 gxh4 Ba3 Qc2 Bb4 Qd1 Bf8 Kf2 a5 Kf3 f5 e4 Kf7 b4 Kg6 d6 a4 b6 a3 b7 a2 b5 Be7 e5 Bd7 d3 Nc6 b8Q Be8 d7 Bf8 b6 Rh6 e6 Kh7 e7 g5 b7 Nf6 Bd2 Ra6 Bh3 Ne4 Ne2 Re6 Nd4 g4+ Kg2 g3 Kf3 g2 Bb4 g1B Nb3 Bd4 Qc1 Bc5 Rf1 Rh6 Rf2 Nd2+ Kg2 f3+ Kg3 Na5 Kf4 Rhc6 Ke5 f4 Kd5 Nac4 Be6 Ne5 Bf5+ Bg6 e8B Qe7 Be6 Bf7 d8N Bh5 Nf7 Bg6 Rf1 f2 Nh8 f3 B8d7 Be8 Bf5+ Rg6 Ba4 Rc6 Rg1 f1Q Rg2 Qd1 Rf2 Qc2 Qg1 Qc1 Qg5 Qa3 Qa8 Ra6 b8B Rc6 Ba7 Ra6 Rg2 f2 Qb8 f1Q Rf2 Qd1 Bb6 Bd6 Bd4 Bc5 Na5 Qg4 Bc2 Rc6 Nb3 Ra6 Nc3 Qf4 Re1 a1B Nb1 Bc3 Ref1 Ng4 Bg7 Ne5 Ba5 Qfa4 Bb4 Rc6 Re1 Nf7 Re6 Ne5 Rd6 Ra6 Rd8 Rc6 Rc8 Ra6 Bh3 Rgc6 Bf5+
2kbq1Rb/1rp1Q1Pr/1Nb1R1rP/2P2nQB/1b3N2/1N6/K1BR4/4nqN1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Nc6 g5 Nb8 g6 Qf6 Be3 Qd8 Bg5 hxg5 Kd2 a5 Kc1 f5 e4 d5 c4 Kd7 b4 g4 Kb2 a4 h4 a3+ Ka2 g3 b6 f4 c5 d4 h5 f3 e6+ Ke7 b7 d3 h6 f2 e5 d2 b5 g2 b6 Na6 b8Q Rh7 b7 Bd7 Bd3 f1Q Qe1 d1R Bc2 Qe8 Rh2 Rd3 Nd2 Rg3 Nb3 Ra7 Qe4 Bb5 Re1 Bc6 Qc8 Rg4 b8N Rb7 Nd7 Rg3 Nb6 Nb4+ Kb1 Nd3 Ka2 Rg5 Re3 Rg3 Qg4 Ne1 Qg5+ Nf6 g8R Bg7 Qh4 Bh8 g7 Rg6 Qg4 Ne4 Qg5+ Qf6 Qa8 Nd6 Qa4 Nf5 Qe4 Qf8 Re2 Ke8 e7 Qf7 Nc8 Kd7 e8N Qc4 Re3 Qf1 Nf6+ Kd8 e6 Qe8 Nf3 g1B Nb6 Bf2 Ng1 Bg3 Rd2+ Bd6 Nfd5+ Be7 Nc8 Bf6 e7+ Kd7 Qeh4 Bc3 Re6 Bb4 Ka1 a2 Nf4+ Nd6 Kb2 a1B+ Kb1 Bf6 Ka2 Qf8 e8B+ Kd8 Rg2 Nf5 Nb6 Qf7 Rd2+ Qd7 Nc4 Kc8 Bf7+ Bd8 Nb6+ Kb8 Qe7 Qe8 Qhg5 Rf6 Na8 Kc8 Bh5 Rg6 Nb6+
B2R4/1Pr1nb2/Npb2kB1/1N1P2q1/1nb2R2/N1Qr1n1K/1Pq1Q3/2bNB3 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 Nd7 h4 gxh4 a4 Nc5 a5 Na6 Bc4 b6 Bf1 Nb4 a6 Bd7 Bb5 Qc8 Bc6 Rb8 Ba8 Qb7 axb7 a5 Nc3 Rc8 Nb1 Rd8 Kf1 Kf7 d4 e5 f4 c5 g4 h5 Kg2 a4 f6 a3 g5 a2 f5 c4 d6 e4 d5 e3 Na3 c3 Bd2 c2 Be1 c1Q Nh3 e2 Nf2 Bh6 Kh3 Bc6 d7 Rc8 d8Q Rc7 Qc8 Qc2 Qd3 Rh7 Rd1 a1Q Qf3 Ne7 Rd4 Qac1 Nd1 Rh8 Rg1 Qe3 Rgg4 Re8 Rge4 Qg1 Re6 Qe3 Rd6 Qec1 Rd8 Rh8 Bf2 e1N Qe2 Nf3 Be1 Qe3 Kg2 h3+ Kg3 h2 Kh3 Rf8 g6+ Kg8 g7 h1B f7+ Kh7 g8B+ Kg7 Re4 h4 Bh7 Qg5 Rd4 Kf6 Bg6 Kg7 Qce6 Nh2 f6+ Kh8 Be4 Qe5 Bg3 Bc1 Be1 Bf3 Qd6 Bh5 Bh7 Qg5 Qg3 Bg6 Qc3 Bd3 Bg6 Bc4 Bh5 Kh7 Bf3 Kg6 Be4+ Nf5 Bd3 Re8 Be4 Nf3 Bd3 Re5 f8N+ Kf7 Nd7 Re3 Be4 Rd3 Nc5 Kg6 f7 Kf6 Na6 Ne7 Bg6 Nd2+ Kh2 h3 Kh1 h2 f8N Rc8 Ne6 Nf3 Ng7 Rc7 Nf5 Qh4 Kg2 Qg5+ Kh3 h1B Bf7 Nd2+ Bg3 Bf3 Nd6 Be4 Ndb5 Nf3 Be1 Bh7 Be8 Bg8 Bg6 Bf7 Rf4+
3nR2K/QPq4P/1Bb3Nb/3R4/Q2nB2N/pr1qN1Pr/3B1n2/3n1Bkr b - - 0 1 illegal: No proof kernel
1qnr2r1/1PN2P2/2qr4/1bQ2pNK/1nQ1Q2P/1RRQ4/3rRn2/BB3kb1 b - - 0 1 illegal: No proof kernel
1QK1bB1b/1P1P4/1b2RQ2/pq3RQ1/1qN2N1n/rbrq1Bn1/1B1QP3/4k3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 g5 h4 c5 h6 f5 b6 f3 b3 g4 h7 f4 d6 c4 h5 g3 d5 c3 h6 g2 b7 f2 d7 f3 Ke6 c2 d6 Na6 b8B Nc5+ Ke5 Ne7 Rh5 Ne4 Ke6 Bg7 Na3 Kc3 b4 Ng6 b5 Ng3 b6 Nh4 Nh3 g1B Bg2 f1B b7 f2 Bc6 Bg2 Nc4 f1Q Nf4 Bb6 Rf5 Qe1 Bf3 a6 Ba3 c1Q Rb1 Rg8 h8Q Qb2 h7 Qb5 Bc1 Be5 Qf6 a5 Qg5 Bh8 Qd5 Kc2 Bb2 Qeb4 Qd4 Bh3 Qdf6 Bg4 Rd1 Bh5 Rd4 Be8 Re4 Kd1 Ree5 Bg7 h8Q Ke1 Qhh6 Bh8 Ba7 Bc7 Bc5 Ra6 Qhf8 Rc6 Re3 Bb6 Q8h6 Qc7 Ke7 Qb8 d8Q Be6 d7 Qa8 Bd6 Qaa6 Qb8 Rc7 Kd8 Rg7 Na3 Bb3 Bf8 Rh7 Re6 Rc3+ Qc7 Qd3 Nc4 Qab5 Kc8 Re7 Rc6 Re3 Qb8 Rc1 Re6 Ra1 Qd4 Ra3 Qd5 Qc2 Qhf6 Rc3 Qd3 Qb1 Qe3 Qd3 Qd2+
2bk4/1P1pB2Q/K6N/1RNPn2R/2Pb1nr1/N1n1b1q1/1b1r1qQN/BQ6 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c6 b4 Rh6 b6 Rh7 b5 Qc7 b7 Qd8 b6 Rh8 Bb5 cxb5 Ke2 g5 Kd3 a5 h4 e5 f4 b4 Kc4 a4 Kb5 a3 d4 e4 c4 a2 h6 e3 h7 e2 h5 e1B h6 g4 d5 g3 f6 g2 f7+ Ke7 f5 b3 f6+ Kd6 Rh5 b2 Na3 b1N Qc2 Qe7 Bb2 Qe2 Nf3 g1Q Nh2 Bg7 f8N Nc6 f7 Ke7 b8Q Bf2 Ne6 Bgd4 Nc5 Qg3 f8B+ Kd8 b7 Ne5 Be7+ Ke8 Kb6 Nc3 Rb1 Bfe3 Ba1 Nf6 Rb5 Qef2 Qb1 Rg8 h8N Rg4 h7 Ra4 Qc7 Rb4 Ka6 Rb2 Nf7 Rd2 Rh4 Nh5 Nh6 Nf4 h8Q+ Rg8 Qhh7 Rg4 Bb2 a1B Rh5 Na4 Qd6 Nc3 Qe6 Nc6 Qee4 Ne5 Bf8 Kd8 Qg2 Na4 Bc3 Bb2 Bd6 Bc1 Bb2 Nc3 Ba1 Bb2 Be7+
2q5/P1r1b1NK/qQ1b1QB1/3PBp1B/q1NR2n1/R3rb2/1n4bP/B2Qk3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Ke3 b5 Ke4 g5 Kf5 c5 e4 g4 d4 b3 a4 g3 a5 c4 a6 b2 h6 g2 h7 b4 e6+ Kd6 a7 c3 Qb3 c2 Bc4 Nf6 Be3 c1B Qd1 b3 Ra3 Bb7 e7 Ng4 e8B Qc8+ Kg5 f5 Kg6 Nd7 Ne2 g1Q Ng3 Qf1 Nh5 Nc5 Ng7 Nd3 Nd2 b1B Rg1 Nb2 Be2 Rg8 h8B Be7 Kh7 Ba2 Bg6 Re8 Bf3 Qa6 Bg5 Rb8 Bf6 Ba8 Re1 Rb7 Rh1 Rc7 e5+ Kd7 e6+ Kd6 Rg1 Bb1 Be2 Be4 Rf1 Bg2 Rf4 Nh6 Beh5 Ng4 Nf1 Bd2 Ne3 Bb4 Re4 Nc4 Rf4 b2 Re4 b1Q Rf4 Bf8 e7 Qc2 Re4 Qca4 Be5+ Kd7 d6 Kc6 d7 Kb5 d8Q Nb2 Rf4 Bd6 Nc4 Baf3 d5 Kc5 Rd4 Kb4 Ra1 Kc3 Ra2 Rd7 Qb6 Rc7 Ra1 Rd8 e8Q Bfe7 Qf7 Re8 Qf1 Kc2 Qf6 Kc3 Ra3+ Kc2 Qd3+ Kc1 Nd2 Kd1 Nc4+ Ke1 Qd1+ Kf2 Bf4 Be5 Re4+ Bc5 Qe7 Nd3 Ne6 Bf6 Qf7 Bd8 Ba1 Nb2 Rd4 Bd6 Ng7 Re3 Qf6 B8e7 Qh1 Ke2 Be5 Kf2 Qc1 Ke2 Qc2+ Ke1 Qd1+
3n1q1N/P1N1R1r1/b3q1p1/2PBQ3/4QPNq/1R2Rr1q/1R2bB2/1Kb2k1n b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 f4+ Ke4 h4 e5 a4 d5 c6 b5 c7 b3+ Kb2 d4 h6 g6 h7 d3 a5 b4 h5 d2 a6 Ke3 a7 Kf2 h6 e4 f6 e3 f7 e2 Rh3 e1Q Rg3 Ba6 c8R Nc6 Rc7 Qh4 Re7 Nd8 Rge3 Nf6 Ra2 Ne4 Bg2 Ng3 Bd5 Nh1 Nh3+ Kf1 Qc2 d1B Nc3 Be2 Kb1 b2 Nb5 Qeg3 Nf2 Qgh3 Qf5 Rg8 h8N Rc8 h7 Rg7 Ng4 Rc5 Nd6 Ra5 Bd2 Ra3 Be1 Rb3 Bf2 Ra3 Rg3 Rf3 Re3 Be7 Nb5 Bc5 Rb3 Be3 f8R Bd2 Qe4 Bc1 Nh6 Qe6 c5 Qeh3 Re8 Qe6 Re3 Qhh3 Re7 Qh4 Kc2 b3+ Kc3 b1Q Ng4 b2 Nc7 Qa1 Kb3 b1Q+ Rb2 Qba2+ Kc2 Qa5 Rh3 Q1a3 Kb1 Qd2 Nf7 Qd4 h8Q Qdf6 Qh5 Qac3 Nh8 Qf8 Rg3 Qcf6 Reb3 Qh3 Qhe5 Qfh4 Be1 Rf2 Rge3 Rf3 Bf2
3RRbR1/P1Q2Br1/1N2p2N/2P1qP2/1n2nn1K/2B5/1QRr2k1/q1n2bqN b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 c4 Kf7 h4 Kf6 a4 Ke5 f4+ Ke4 Kf2 d5 Kg3 b5 a5 g5 c6 d4 f6 d3 f5 b3 a6 b4 a7 g4 h6 b2 c7 b3 h7 d2 h5 Qd3+ Kh4 g3 f7 g2 c5 Nc6 h6 Qc3 Na3 b1Q Bb2 Nb4 Qc1 d1N Nc4 Ba6 c8Q Qe5 Ne2 Kf3 Ra2 g1N Bc3 b2 Nb6 Nh3 Rg1 Ndf2 Qc7 Rd8 Ng3 Rd2 Bc4 Nfd3 Nh1 Nf6 Rg8 Qa1 Be6 b1Q Rc2 Ne4 Qb2 Qg1 Bb3 Bg7 f8R Kg2 Bf7 e6 Rd8 Nc1 Rge8 Rg8 h8R Bf8 h7 Rg6 Rg8 Rg7 h8N Nf4 Ng6 Qd6 Ne5 Bf1 Ng4 Qe5 Nh6
2R2KBq/P1PB2NB/q5N1/1pB1k2n/R3b3/nN1bn3/1rP2b2/Q2Qn2r b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 Ke2 Kf7 Kf3 e5 Kg4 d5 Kh5 b5 f4 h6 a4 e4 g4 d4 a5 e3 f6 Ke6 Kg6 b3 f5+ Kd5 Kf7 h5 g6 d3 a6 h4 g7 h3 g5 e2 a7 e1N g6 h2 c6 b2 c7 d2 Nh3 Rh4 Ra4 Nc6 Ng5 Nce7 Bh3 Ke5 Ne6 Qd6 Ke8 Rg4 f7 Rb4 f6 Nf5 Rg1 Be7 f8N h1B f7 Bh4 Rf1 Be4 Rh1 Ngh6 g8B Bf2 g7 Ng3 Bh7 Nhf5 g8B Nh5 Ng7 Ne3 Bd7 Qa6 Rh3 Bcb7+ Ke7 Bd3 Ng6+ Kd4 f8Q Bbe4 Qf5 Rf8 Qfg4 Rf3 Rh4 Rh3 Qg1 Rh1 Kf7 Kd5 Kf8+ Kd4 Qdg4 d1Q Nd2 b1N Ba3 Qc1 Qd1 Qb2 Rf4 Qa1 Rf7 Kd5 Nb3 Kd6 Re7 Qe5 Re8 Qh2 Bb2 Na3 Rc8 Qh3 Bd4 Qh4 Nc1 Rb2 Nb3 Qh2 Qa1 Qh4 Qg4 Qh2 Qgd1 Qe5 Ne6 Qh8 Bc5+ Kd5 Ne7+ Ke5 Ng6+ Kf5 Ng7+ Kf6 Ne7 Ke5 Ng6+
2q2n1N/P1PP1k1n/4rNRK/1RN1n3/q2bnBBQ/1p1N4/5q2/3r1QBb b - - 0 1 illegal: No possible last move, all moves rejected
1n4br/1PN1BR2/1Q1Q1b2/KB3kB1/1P1r1b2/1bqBp3/3PbnRN/2Nb4 b - - 0 1 illegal: No proof kernel
rnbB1Nn1/BNq1n3/1nbkr3/1Q4p1/5P2/1K4P1/N2bR1P1/1RRR1Qb1 b - - 0 1 illegal: No proof kernel
2Rb4/1Q2QB1r/r2qbBQ1/P1Qp3k/1bP1P1n1/2N1b2K/Rn5n/3N2Bn b - - 0 1 illegal: No possible last move, all moves rejected
NB3B2/3r4/b2n2K1/P1p2nRr/P2bB3/2NrP2Q/rbb1RR2/B1k1qQ2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxa5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kc4 d6 g5 a3 b5 h6 f5+ Ke5 c5 h5 b4 h7 f3 h6 f4 d7 f2 Kf5 g4 Ra2 f3 Nh3 b3 Bg2 f1R Nf4 g3 Rh5 f2 Nd5 b2 Nc7 Nf6 Be4 g2 Kg6 g1B Nc3 b1B Rg5 Qe7 d8R Nc6 Re8 Bc2 d4 Kb3 a4 Bg7 d5 Ra7 d6 Ba6 d7 Nd4 d8Q Nf5 Na8 Rd7 Bf4 Re1 Bh2 f1R Bb8 Bd4 Qc8 Rf3 Qc1 Rh1 Qf1 Rd3 e3 Rh2 Rf8 Ne8 Rf6 Ned6 Rf8 Ng3 Rf2 Ngf5 Re2 Rh5 Rf2 Rf8 h8B Qe5 h7 Qg3 Re2 Qe1 Rf2 Bge5 Bg7 Rg8 h8B Rgd8 Ra3+ Kb2 Ra2+ Kc1 Bf8 Bg7 Nd1 Ra3 Rb2 Ra2 Nc3 Bb3 Rbe2 Bc2 Nb5 Bb2 Nc3 Bd4 Qc7 Nc4 Qg3 Ncd6 Qg4 Rb7 Be5 Rb3 Qgh3 Rd7 Nb1 Rd3 Nc3 Nh6 Bh8 Nhf5 Rg1 Be5 Nd5 Ba3 Rg5 Ba1 Bf6 Bc3 B6e7 Bh8 Bf6 Bg7 Bc3 Bd4 Ba1 Bab2 Nc3
6n1/b3nN1K/b1b2rp1/PnBPr3/Q1Qb3P/N2N2N1/1R1R2k1/1q2nB1R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 f4+ Kh4 a4 c5 d4 e5 h3 Kg3 h6 b5 h4 b3 f6 b4 d6 b2 h7 b3 a5 c4 f5 c3 f7 c2 d7 Qb6 d8R Ra6 f6 Nc6 Na3 b1N Ra2 b2 Be3 c1B Qa4 Bc5 f8N Nce7 Be2 Kg2 f7 g6 Nd7 Qb8 f8Q Rf6 Qf7 Ba6 Qfc4 Ba7 Nc5 Qb6 Bf2 Be3 d5 Bd4 Nd3 Bb7 Rb8 Bc6 Bh5 Qb3 Ne2 Qd1 Ng3 Qb3 Nb5 Na3 Be2 b1B Rd2 Bc2 Be3 Qb1 Rb6 Bb2 Bc5 Bd4 Nc3 Nb5 Rb8 Qa2 Nb1 Bd1 Na3 Qb1 Bg4+ Be2 Bh5 Nc7 Rbb2 Nb5 Bg4 Nh6 Bh5 Re8 h8N Nhg8 Nf7 Bc3 Ke3 e4 Nf2 Bf1 Be2 Be5 Nd3 Bc3 Nf5 Bd4+ Kf4 e3 Kg5 Bb8 Ng3 Ba7 Bh5+ e2 Bg4 Rf2 Bh5 e1N Be2 Rf6 Qac2 Nc8 Q2a4 Re5+ Nf5 Nge7 Kh6 Ng8+ Kh7 Nce7 Ng3 Bb7 Nf2 Ba6 Bd1 Bd3 Be2 Bf5 Nd3 Bd7 Nf2 Be8 Nd3 Bc6 Bf1+
3nk1QN/6Bq/2n2p1r/1BRb3P/n1n1b1r1/1PbBbPN1/1Q1N3B/4RK2 b - - 0 1 legal: proof: g4 h5 gxh5 b5 Bg2 e5 Bh3 c5 Bf1 c4 d4 c3 bxc3 exd4 Na3 b4 Nb1 b3 axb3 Be7 Na3 Bc5 Nb1 Bf8 e4 d5 h4 g5 f3 a5 h6 g4 h5 a4 h7 a3 c4 a2 c5 d3 c4 f6 e5 g3 e6 g2 e7 d4 c6 Nh6 c5 Ra4 c7 Qd7 c6 Bb7 c8N Nf7 c7 Bh6 Qe2 Bd5 Qb2 Nd8 Ne2 g1N Ng3 Be3 Nd2 Nbc6 Be2 Qf5 Kf1 Qg6 Rb1 a1B Rh4 Qf5 Rf4 Qd7 Rf5 Rc4 Nb6 Rb4 c8Q Qc7 Nd7 Qa7 Qa3 Bc3 Ne5 Qb7 Qb2 Qd7 Bd1 Ne2 Bc2 Rc4 Ng6 Qc7 Nde4 d2 Bd3 d1B Nd2 Bc2 Rg5 Ba5 Ra1 Nc3 Qe6 Na4 Qg8+ Kd7 Rb1 Bc3 Ra1 Bf7 Rc5 Bd5 Be2 Bce4 e8B+ Kd6 Bd7 Rb4 Bb5 d3 Bc8 Rc4 Bca6 Kd7 Qf8 Rg8 Nh8 Rg6 Qg8 Qb7 Nf7 Ke7 h8B Rh6 Bg7 Qd7 Bf8+ Ke8 Nh8 Qh7 Qa2 Rb4 Ba3 Rc4 Re1 Rd4 Qb2 Rb4 Nb1 d2 Bd3 d1N Bab5 Rd4 Nd2 Rc4 Bb4 Rd4 Ba5 Rc4 Bc7 Rd4 Qc2 Ndb2 Qc1 Nc4 Qb2 Qg6 Nh1 Qh7 Bh2 Bg6 Ng3 Rg4 Qb1 Bf5 Qb2 Bfe4 Bg7+
1BN3N1/3rnK2/2P1Bb2/RP3Rp1/nn4Bb/2nQP3/1qb1Q3/1k2BrbQ b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kf2 Ke7 Ke3 Ke6 Kf4 a5 b4 f5 h4 d5 c4 g3 h5 g2 b6 d4 c6 d3 c7 a4 b5 a3 b7 a2 h6 d2 h7 Ne7 Kg5 f4 c5 Kd5 c6 Kd4 e6 f3 Rh5 f2 Nc3 Ra7 Na4 Nd7 b8B Nb6 Nh3 g1B Nf4 g6 Qb3 d1N Kf6 Nc3 Bh3 f1N Bg4 Ne3 Rf5 Nc2 Nd5 Nb4 Kf7 g5 e3+ Kd3 Nf6 Qd4 Bd2 Rg8 Qa3 Kc2 h8Q Rg6 Ng8 Rf6+ Ke8 Bg7 Be1 Rf7 Qh4 Be5 Qh1 Bg3 Qb3+ Kd3 Qc4+ Kc2 Qe2+ Qd2 Qeh2 Bh4 Qe2 Nd7 Nb6 Nc5 Qd3+ Kb2 Qe2 N5a4 Qd3 Ba6 c8Q Rd7 Qd8 Bc8 Qe2 Ra7 Qdd3 Rd7 Rd5 Rf1 Rf5 Qc2 Kf7 Qd2 Rd1 a1B Rc1 Ng6+ e7 Ka2 Rc2+ Kb1 Ra2+ Qc2 Kf6 Bb2 e8B Ne7 Bf7 Ba1 Qdd5 Qb2 Be6 Rc7 Kg7 Bd7 Qd4 Be8 Qdd5 Bg6 Nc8 Bh7 Kf7 Rd7 Rf2 Be4 Rf5 Bc2 Qdd3 Nb6 Nd6 Qb3 Nf6 Ne4 Ra7 Na4 Ng8 Bf6 Ra8 Qb2 Nc8 Nec3 Ra5
r1Q1bN1K/N2B4/Rp1b2R1/r1r3P1/Q4P2/QbB1R2n/b2nRP1r/1k4q1 b - - 0 1 legal: proof: h4 d5 c4 f5 cxd5 g5 hxg5 a5 b4 axb4 e3 f4 exf4 Ra7 Bd3 Ra4 Bf1 Ra8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 h5 g4 b3 a4 Kb4 d4 c5 a5 c4 d6 b2 g6 h4 a6 h3 g5 b6 d5 h2 d7 c3 g7 c2 d6 Kb3 a7 Nc6+ Ke6 Nd4+ Kf7 e5 Ra6 e4 Na3 Ka2 Qd3 b1B Bb2 c1R Ne2 e3 Bc3 Nf3 Bh3 Nf6 g8R Ne4 Re1 h1B Rg6 Ng1 Nd4 e2 Ne6 Nd2 Qe4 Bf3 Qa4 Bd5 Bg4 Bc2 Nb5+ Kb1 Qa3 Rh2 Kg8 Qc7 d8R Nh3 d7 Ba2 Re8 Bcb3 d8Q Bd7 Qc8 Bd6 Kh8 Qb7 Nf8 Qh1 Qa4 Qg1 Re3 Be8 Bd7 Qg4 Rh1 e1R Rf1 Red1 Rfe1 Qg1 R1e2 Rc2 Be5 Rc5 Bc3 Nf1 Qa3 Rdd5 Qa4 Nd2 Qa3 Rb8 a8Q Re5 Qac6 Ra8 Na7 Ra5 Qc4 Rec5 Qca4
7K/nrNkNN1P/8/4RRbn/3Qb1PB/3r1P2/Q3bpBN/bQ1q1n1n b - - 0 1 illegal: No proof kernel
Qbb1n1Br/q3NNP1/k2r2b1/B1n1PP1b/4B1rB/2p1K3/6R1/N3RQr1 b - - 0 1 illegal: No proof kernel
1kr2Brr/3p2nr/1Q6/b2b1PRb/R2KQ2B/b3N2P/BBPNq2N/2n5 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 a5 Kd3 e5 f4 g5 b4 e4+ Kc4 e3 b6 g4 b5 e2 h6 e1B f6 a4 f5 a3 b7 g3 b6 d3 h7 a2 Qe2+ Qe7 f7+ Kd8 Qg4 d2 Bb2 d1B Nf3 g2 Kd4 g1R Nbd2 Na6 b8B Bb7 Bc4 Kc8 Qe4 Nb4 Bg3 Bd5 Bh4 Nf6 b7+ Kb8 h3 Rg7 Nh2 Bh5 Rf1 Ne8 Rg1 Nd3 Rg5 Nc1 Bb3 Rhg8 h8N Rh7 Ng6 Ng7 Ne5 Qe8 Nec4 Ba3 f8B Qe7 Qg4 Qe2 Qe4 Rgh8 Ne3 Rg8 Rb1 a1R Ba2 Rgh8 Ndc4 Ba5 Nd2 Nd3 Rf1 Nc1 Rf4 Rb1 Bc3 Rb6 Bb2 Rg8 Rfg4 Rbh6 Rf4 Rhh8 Rfg4 R6h7 Rf4 Kc7 Rfg4 Rc8 b8Q+ Kd8 Qb4 Kc7 Qd6+ Kb7 Qb6+ Ka8 Qe7 Rd8 Ke5 Rc8 Ra4 Bhf7 Kd4 Bh5 Qb3 Ka7 Qe4 Ka8 Qb5 Ka7 Qa6+ Kb8 Qb6+
k2BQ1K1/2P1P2n/b4BR1/p1n4B/1Rn2bQn/Rb2BP1b/N7/2rqN1r1 b - - 0 1 illegal: No proof kernel
3R3R/1pn3KP/2r4r/n4PB1/qb1Nr1N1/1b1bPQb1/kNr3R1/Q4BN1 b - - 0 1 illegal: No proof kernel
R1nNNQ1r/1BQbrQr1/2Pq3Q/b4Ppb/1B2N1P1/q1b5/2K5/k3b1R1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 cxd4 a4 f5 exf5 g5 axb5 Nc6 h5 Ne5 Nd2 Ba6 Nb1 Ng6 hxg6 Bc8 Kd2 h5 f4 e5 b4 Ke7 c4 Kf6 g3 a5 b6 d5 b5 h4 c5 h3 g7 d3 b7 h2 b8N a4 c6 d4 b6 e4 b7 e3+ Ke1 d2+ Ke2 a3 Kd3 e2 Qe1 d1Q+ Nd2 a2 Ba3 Bb4 Na6 Qa4 b8Q Ra7 Nc7 Bd7 Ngf3 Ne7 g8Q Nc8 Rg1 h1R Ne5 R1h7 Nf7 Ba5 Bb4 Qa3+ Kc2 Rg7 Qf8 Qe7 Qf2 e1B Ba6 Qd6 Qh2 Rb7 Qg8 Ra7 Nd8 Re7 Bb7 Rg7 Rc1 a1B Qh3 Bc3 Ra1 Ke7 Ne4 d3+ Kb1 d2 Ne8 d1B Qc7 Bh5 g4 Bg6 Qh6 Bh5 Ba8 Rb7 Kc2 Ra7 Nf7 Rb7 f6+ Ke6 f5+ Kd5 Nd8+ Kd4 f7 Kc4 Kb1 Kb3 f8Q+ Rf7 Qgg6 Rg7 Ra2 Rb5 Bb7 Re5 Rd2 Ree7 Rd5 Qa4 Qgf7 Qa2+ Kc1 Qa3+ Kd1 Ka2 Kc2 Ka1 Rb5 Qg6 Rb6 Qf6 Ra6 Qd6 Ra8
2BN1K2/qQ1NRQ2/2b2B2/3rq1r1/1Br3B1/RPknPp2/1R2rP1b/5b1r b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 c4 Nc6 cxb5 Nd4 h4 Nb3 axb3 gxh4 Kd2 Ke7 Ke3 Ke6 Ke4 d5+ Kd4 c5+ Kc3 f5 g4 h5 b6 a5 g5 a4 b7 c4 Kd4 a3 b8R f4 b5 h3 g6 h2 g7 h4 b6 c3 b7 a2 Bb2 c2 Nf3 c1R Nbd2 h3 Nc4 Qf6 Nb6 Nh6 g8Q+ Nf7 Ng5+ Kf5 e3 Rh5 Rb1 a1Q Ba6 Bd6 Ne6 Rg5 Nd8 f3 Qf1 Bd7 Qb5 Bc6 Qb4 Qe7 e6 Ne5 Qf7+ Qf6 Rd1 h1B e7 h2 Rd2 Qa4 Ra1 Bg2 Rc2 Bc7 Kc5 h1R Bc3 Rce1 Rb2 d4 Ra3 Ke4 Rc8 Bf1 b8B Qg7 Ba7 Bb8 Rc7 Re2 Bc8 Kd3 Kd6 Qa6 Ke6 Qb7 Rd7 Bc7 Bb8 Ra4 Qb5+ Rc4 Bb4 Bd6 Qa6 Qa7 Qb7 Qh8 Rc7 Qh2 Kf6 Qg3 Bg4 Qh2 e8B Qg3 Re7 Bc7 Bc5 Kc3 Bed7 d3 Bc8 d2 Nd7 d1R Bd6 Rd5 Bc5 Rgh5 Kg7 Nd3 Kf8 Rhg5 Bd6 Qf4 Be5+ Qfd4 Bf6 Bh2 Bd6 Qe5 Bb4+
B1n5/1r1nq2Q/1r1NRq1R/B3P1pK/Q4P2/1qR1bRP1/2q4Q/1nq1kN2 b - - 0 1 illegal: No proof kernel
2Q1bR1K/qb1N1brQ/kb2b2R/P4pB1/n5B1/3N1Pq1/N3P2Q/4Nn1q b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 b4 Qd5 Ra6 Qd1 Rb6 b3 Rb5 cxb5 a4 Bf4 axb3 Bh6 Ba6 Bc1 Bc8 Kd2 f5 Ke3 d5 Kd4 Kd7 h4 g5 a4 c5+ Ke3 Kc7 b6+ Kb7 f3 b2 h6 c4 Kd4 g4 h7 b3 e6 c3 Ke5 c2 a5 d4 h5 d3 h6 g3 e7 d2 e8N g2 Nc7 Qg5 Nc3 b1B Nh3 g1Q Ne6 b2 Nef4 Q5g3 Nf2 Be6 Na2 Na6 Bh3 Nc5 Nd3 Na4 Ne1 Nf6 Bg4 Ka6 b7 Rg8 h8Q Nd5 h7 Bc5 Rh6 Rg7 Qc8 Ne3 Kf6 Nf1 h8Q Bb6 Nfd3 Bf7 Qh7 Qc5 Nc3 Bba2 Rb1 Bae6 Na2 Qcc7 Ne5 Qb8 N5d3 Qa7 b8N+ Kb5 Ra1 b1B Nd7 Be8 Ba3 c1Q Be7 Bc2 Rb1+ Bcb3 Qdc2 d1B Q2c7 Bd5 Rb2 Bb7 Rd2 Be6 Rc2 Qh3 Qh2 Qg3 Rc7 Bdb3 Bd8 Bc6 Rb7 Ka6 Rb8+ Bb7 Ra8 Re7 Rb8 B6f7 Kg7 Bfe6+ Kh8 Rg7 Bg5 B6f7 Qc3 Bbe6 Rc8 Qe3 Rd8 Qeg1 Qc8 Qh1 Qg8 Bh5 Qh7 B8f7 Rf8 Be8 Qc3 Bhf7 Qc8
5b1K/1n1b1BnB/3NpPR1/B1nNnqQn/1QB4R/Q2rP3/k1Pq4/5b2 b - - 0 1 illegal: No possible last move
7R/kqB2N2/1np1n1BP/4Q2n/3NqQNN/1bR3n1/PrPb4/K2nQ2b b - - 0 1 legal: proof: d4 b5 b4 e5 f4 h5 g4 a6 d5 Rh7 gxh5 a5 fxe5 axb4 e4 Ke7 e6 Kd6 e7 Rh8 e5+ Kc5 Qe2 Ra6 Qd1 Re6 dxe6 Kc6 Kd2 Kb7 e8Q f5 h4 g5 h6 d5 h5 c6 h7 d4 e7 g4 e6 b3 h6 b2 Kd3 b4 Ne2 b3 Ng3 f4 Be2 f3 Nf1 g3 Qg6 f2 e8Q g2 e7 g1N Kd2 d3 Kc3 d2 Qg2 Ka7 Qd5 Nh3 Qe5 Nf4 Ng3 f1N Qe1 d1B Nd2 b1Q Bd3 b2 Nf3 Nf6 Nd4 Ne6 Qf4 Nbd7 Bg6 Bf3 Ngf5 Ng3 Nh4 Nb6 Rh3 Qd5 Be3 Rg8 h8N Nfh5 Nf7 Qe4 Bg1 Ba6 Bh2 Bh1 Kb3 Bc4+ Ka3 Nf5 Rc3 Bb3 Bg3 Rh8 Bh2 Nfg3 Qeb8+ Ka6 Qbe5 Bg7 e8N Ka7 Nf6 Rb8 Ng4 Bf6 Qf3 Bg5 Qff5 Bd2 Qff4 Qd1 Rc1 b1N+ Kb2 Qde2 Rd1 Qa6 Ka1 Qb7 Re3 Nc3 Rb1 Nd1 Rc3 Ba4 Rb5 Bb3 Rd5 Re8 Rd7 Rd8 Rc7 Rd5 Rc8 Rb5 Re8 Bd5 Rb8 Rb2 Rh8 Bb3 Qf3 Nd5 Qg7 Nf1 Bc7 Nb6 Qe5 Nfg3 Qff4
6KN/knq5/1N1B1rb1/PQB4R/1QPqq2q/2b4p/N1B1R2P/1bNr2r1 b - - 0 1 legal: proof: d4 f5 b4 c5 dxc5 a5 e4 axb4 exf5 Nc6 f4 Ra4 g4 Nh6 f6 Ng8 f5 Ra8 g5 Qa5 Qd4 Kd8 Qd6 Ne5 Qd1 Kc7 g6 Nf7 gxf7 Kc6 Ba3 Qb6 Bc1 Qd8 Ke2 e5 Ke3 d5 c4 g5 a4 b5 a5 Kb7 c6+ Ka7 c7 h5 Bb2 e4 Kd4 g4 Ke5 e3 Qe1 d4 Qh4 e2 Qg3 e1Q+ Ne2 b3 Qh3 h4 Qg3 b4 Ra2 h3 Nc3 d3 Ba3 b2 Rg1 b3 Bd6 Bg7 f8N b1B Ng6 Rh6 Nh8 b2 Qf4 d2 Qg5 Qf2 Nc1 d1R Bd3 g3 Bc2 g2 Rf1 Bb7 Ke6 g1Q Kf7 Be4 Re1 Bd3 Re5 Qh4 Rb5 Qgd4 c8N+ Ka6 Nb6 Ne7 Qh5 Nc8 Qg5 Qe7+ Kg8 Qc7 f7 Rf6 f8B Ka7 Bc5 Nd6 Qh5 Re6 f6 Bg6 f7 Nb7 Qg5 Rf6 Qd5 Kb8 Bfd6 Ka7+ f8Q Rg1 Ra1 Re8 N3a2 Ree1 Qe7 Rd1 Qe1 Qhe4 Qb4 Qh4 Be5 Rf7 Ba4 Bbc2 Bf8 b1Q Ne2 Qe3 Bd4 Qee5 Bd6 Rd3 Bf2 Qbb2 Re1 Bb1 Nec1 Rd1 Re2 Qee4 Bc2 Be5 Qc6 Rf6 Be3 Bd4 Rh5 Qc3 Qcb5 Qcd3 Bh6 Bc3 Be3 Qd2 Bec5 Qdd5+ Nf7 Qdd4 Nh8
2R3B1/p3B1Pk/q1n2B1b/P2qP3/q7/n1B4N/1QqQn1bb/KR2r1NQ b - - 0 1 legal: proof: f4 d5 h4 c5 b3 e5 h5 c4 bxc4 b5 h6 e4 e3 Na6 c5 d4 exd4 gxh6 d5 h5 Kf2 h4 Ke2 Rb8 Ke1 Rb6 Be2 Re6 Bf1 Re5 fxe5 Kd7 Nh3 Ke7 Ng1 Ke8 d4 h5 Kd2 f5 Kc3 Kf7 Kb2 Kg7 c4 h3 a4 f4 g4 f3 g5 h2 g6 b4 c6 h4 d6 h3 c7 e3 c5 f2 a5 e2 d7 e1B d5 b3 c6 Rh7 d6 Qe8 d8B Ne7 d7 Nb4 Qd2 Bb7 c8Q Nc2 c7 Nc6 Bc4 f1Q Bg8 Qa6 Nc3 Bg3 Rb1 Na3 Qa8 Bf4 Ka1 b2+ Ka2 Kh8 c8Q B8h6 Be7 Bg3 d8B Rf7 Bd6 Rf1 B6e7 Re1 Nce2 Qd7 Nf4 Qg4 Ne6 Qa4 Ng5 Bf4 Qcb8 Bg3 Ra1 b1N Kb2 Nc3 Rb1 Ne2 Ka1 Qc2 Bb2 Bf4 N1f3 Bg3 Rg1 h1Q Bc3 h2 Nh3 Qg2 Rf1 h1Q Nfg1 Qge4 Rf8 Bh2 Re8 Qea4 Bf6+ Bg7 Bde7 Qf3 Rc8 Qd5 Bg5 Bh6 Bh4 Be3 Bhg5 Kg7 Bgf6+ Kh6 g7 Kg6 Qd6 Bh6 Qab8 Ba8 Qb2 Bb7 Qdb4 Ba8 Qh4 Bb7 Bf7+ Kh7 Be6 Ba8 Bg8+ Kg6 Qf2 Qdb3 Bf7+ Kh7 Nf3 Nb8 Qg1 Be4 Bd5 Nc6 Qh1 Qbb5 Nfg1 Bg2 Bf7 Qd5 Bg8+
1R6/RP2np1n/N2P1P1n/nq4n1/1QN2Brk/qR6/b1B3Bn/K2Q1rB1 b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 Kd2 h5 Kc3 a5 f4 e5 b4 c5 Kb2 a4 g4 a3+ Ka2 h3 d7+ Ke7 f5 Kf6 b6 h4 b7 c4 d6 h2 d5 h3 b5 c3 b6 c2 Bg2 e4 Qd2 e3 Ne2 Kg5 f6 Rh4 Rf1 h1N Qd3 h2 Nd4 Ng3 Nb3 h1N Bf3 Nf2 Qc3 Nge4 Bg2 Nh3 Nc5 Nh6 Qb4 Qe8 d8B Qb5 d7 Nc6 b8R Ne7 Nd2 e2 b7 e1N Na6 Nf3 Bb6 Nh2 d8Q Be6 Rf3 Ra7 Rb3 Ra8 Bb2 c1Q Be5 Qcc5 Kb1 a2+ Kb2 Qe3 Nc4 Qg3 Bg1 Ra7 Rb1 a1N Ra3 Nb3 Bf4+ Kg6 g5 Kh5 g6 Nhg5 g7 Rg4 g8B Nh7 Qdd6 Na5 Ka1 Neg5 Rbb3 Kh4 Ra4 Bf5 Qd7 Bb1 d6 Ra8 Qe6 Qd3 Qe2 Ba2 Qd1 Qe3 Rb1 Qa3 Rb3 Nf8 Bh7 Ra7 Bhe4 Nfh7 Bc2 Ra8 Re8 Rc8 Rg8 Rc5 Rb8 Rf5 Be5 Rf3 Bf4 Rf1 Nc5 Nac6 Ra7 Na5 Na6
r4r2/2rQ2Qr/N4Pk1/Nr5q/P2q1p1n/KQnbBPr1/2B3R1/RR2Q3 b - - 0 1 legal: proof: e4 f5 b4 d5 c4 a5 cxd5 axb4 g4 h5 gxh5 e6 e5 Be7 Qg4 Ra7 Qd1 Bf6 exf6 Ra8 a4 Kf7 h4 g5 d4 b5 Kd2 c5 Kc2 c4 Kb2 b3 h6 g4 h5 b4 d6 f4 d5 g3 h7 g2 d7 e5 f3 e4 d6 e3 h6 e2 Qd5+ Kg6 Qd1 e1Q Qd4 Qee8 Qe5 Ne7 Nh3 g1R Nf2 Rg3 Nd3 Na6 Qe1 Nf5 Nd2 Rf8 h8Q Nc5 h7 Ne4 Nc5 Nc3 Bd3 Ba6 Bc2 Qb6 d8Q Bb5 Nd7 Qd4 Nb8 Qf7 d7 Qfd5 Bd1 Nh4 Qb6 Qh5 d8Q Ba6 Qd7 Bb5 Ne4 Ba6 Be3 Bb5 Kc1 b2+ Kc2 b1R Nd6 Rc1+ Kb2 b3 Ka3 b2 Na6 b1R Nb7 Rc2 Rg1 Rh2 Rg2 Rb2 Nc7 Ba6 Na5 Rb5 Qb7 Na2 Qbd5 c3 Qb3 c2 Rb1 c1R Bc2+ Rf5 Ra1 Bd3 Na6 Nc3 Rb1 Rb5 Ra1 Rfe8 Qf8 Rh3 h8R Rec8 Rh7 Rd8 Qh8 Rf8 Re7 Rh1 Re8 Rh2 Rb8 Rb7 Qe2 Rc7 Qb7 Qhe5 Nc5 Rb1 Qd2 Nf5 Na6 Rh7 Qe1 Nh4 Qbb5 Qh5 Qbd5 Rb5 Qc4 Rf5 Rbb1 Rfg5 Qb3 Rb5 Qhg7+
1Q5B/r2rNnbB/p2Q1rPN/P3Rbk1/nP3Q2/K3R3/2rr2Rr/2r1Q3 b - - 0 1 illegal: No possible last move
q3RqN1/1QB1bb1P/1pr5/1PkbQ1PB/rR2rR2/1Q1K1RN1/b5n1/6r1 b - - 0 1 illegal: No proof kernel
n3Nr1r/Nq3Qnq/n1B2Kp1/1P1b2R1/RN2Q1P1/2BrN3/rP4k1/2B3n1 b - - 0 1 illegal: No possible last move
N1BB2r1/Q7/r3b2B/1k1BK2R/bp2b2P/1rQ1rq2/nPPb4/N1N1R2q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a3 e5 fxe5 Na6 a4 b4 Bg5 Nc7 Bc1 Nb5 axb5 Bb7 Nf3 Ba6 Ng1 Bc8 Kf2 g5 Kg3 a5 e4 f5 h4 d5 b6 Kd7 h6 Kc6 h7 d3 b7 d2 b8B f4+ Kf3 d4 e6 d3 e7 g4+ Kg2 f3+ Kg3 f2 Kf4 a4 e8N g3 e5 a3 e6 g2 e7 a2 Nd6 Ra3 Nb5 Be6 N1c3 Rb3 Nc7 Qd5 Qf3 d1R Nb1 d2 Na8 Nf6 Bc4 f1B Qe3 Ne4 Ne2 g1Q Qa7 Re1 Bc7 d1B Nd2 Rg8 h8Q Nc3 Bd8 Qf3+ Ke5 Bh6 Bd5+ Kb5 Qf6 Bfh3 e8B+ Bd7 Bh5 Bhe6 Bg4 Qgg2 Rg1 Qh1 Bf5 Be8 Rg5 Bc6 Rb1 a1R Rh5 Ra6 Qfg7 Na2 Ra1 Rc3 Nb3 Bd2 Rb1 Be8 Na1 Rb3 Bh3 Bg6 Qgc7 Be4 Qc3 Bd7 Ng3 Re3 Ne2 Bc6 Bc8 Qfg2 Nf4 Bg4 Nd3 Qf3 Qe7 Be1 Qa7 Be6 Bd2 Re2 Bh6 Bd2 Re1 Re3 Bf6 Ka5 Nc1 Ba4 Bfg5 Kb5 Bd8
1nR5/kRBbpPK1/1RQ2Pbr/4b1q1/4P2r/1q6/NrN4r/R3QbNB b - - 0 1 illegal: No possible last move
RQ1Q4/qN1B1bkq/Q1q1p1N1/r1n3BP/R1nQ4/r2q1P2/1n2P3/5RKn b - - 0 1 illegal: No proof kernel
6Q1/q1R2p1N/Qn3qPn/2KPB1qB/4R1Rb/3r1k1R/Qq2NP2/b2b3b b - - 0 1 legal: proof: c4 b5 e4 a5 a4 g5 axb5 d5 exd5 Bh3 d4 Bh6 d6 Kf8 d5 Kg7 c5 Bc8 h3 Kf6 h4 Ra6 d7 Rd6 cxd6 gxh4 Ne2 Bg7 Ng1 Bf8 Kd2 Ke5 Ke3 h5 g4 c5 b4 h3 b6 h2 b5 a4 b7 c4 g5 c3 b6 c2 g6 a3 Bb5 a2 Bf1 h4 Qd3 h3 Nd2 Nh6 Ne2 e6 Qb5 Qf6 d8R Be7 Re8 Nd7 b8R Ba6 b7 Nb6 Ba3 c1Q d7 Qb2 Rc1 a1B d8Q Rh7 Rg1 h1B Rc7 h2 Bd6+ Kf5 Ne4 e5 Bg2 Kg4 Ng5 e4 Be5 Rh8 Qa5 Bd3 Qa3 Bc2 Qdd6 Bd1 Qa2 Bd8 Nh7 Be7 Rc3 Qg5+ Kd4 e3 Bf1+ Kf3 Rbc8 Bf6 b8Q Bd8 Nf4 Qf6 Bd3 e2 Rg4 e1Q Ne2 Qed2 Rc7 Qdg5 Re6 Be7 Qg8 Bd8 Kc5 Be7 Qg7 Ra8 Qg8 Ra3 Rcc4 Bd8 Rce4 Rb3 Bc2 Rd3 Ree7 Bg2 Qe6 h1Q Qc8 Qe1 Qca6 Bh1 Ba4 Qa5+ Bb5 Qgf4 Re6 Q6g5 Rf6 Qa4 Rf5 Qf6 Rh5 Qg3 Rh3 Qa5 Qb7 Qa7 Qba6 Qh4 Bd7 Bg2 Rg5 Bh1 Rh5 Qf4 R5h4 Bg5 Be6 Qf6 Bc8 Kg2 Rhf4 Bh4 Bd7 Qgg5 Bg4 Rd2 Bh5 Rd4 Ng3 Rd3 Rg4 Kf3 Ne2+
3r4/b1Qb2P1/1R1K1bR1/B1R2p2/1NB4k/Rrr2P1b/nN1B3P/r1b2n1Q b - - 0 1 illegal: No proof kernel
3b1bb1/2R2r1r/kR1n3R/Prp5/1b2P1B1/1QP2R1K/1n1QQ2N/2r1B1bN b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 gxh5 a5 bxa5 Be6 Bd3 Bf5 Bf1 Bc8 f3 e5 Kf2 e3+ Kg2 e2 Nh3 e4 Ng1 e3 Na3 Qe7 Nb1 Qe4 fxe4 Bb4 Nf3 Be7 Ng1 Bf8 d4 Kd8 h4 e1B a4 c5 d5 Kc7 a6 Kb6 a7 g5 d6 f5 d7 e2 d8Q+ Ka6 h6 b5 a5 b4 h7 f4 h5 g4 h6 b3 Nh3 g3 Nd2 b2 Nf3 b1R Ra3 Nf6 Bd2 Be6 Nf2 Bg8 Kh3 g2 Nh2 g1B Rf3 Nc6 Bg2 Rab8 a8Q+ Na7 Qd7 Ne8 Qad5 Nc8 Qb3 Rc1 Bb4 Bc3 Q7d2 e1B Q1e2+ Rb5 Bf1 Ned6 Bg2 Bf7 Bf1 Nc4 Bg2 Rg8 h8R N8d6 h7 Rg7 Rg8 Bd5 h8R Nb2 Rh6 Rh7 Rg7 Bg8 Rc7 Be5 Rd3 Bh8 Bf3 Bf6 Bg4 Bd8 Rf3 Bc4 Bc3 Bg8 Bf6 Bfe7 Bh4 Bf8 Qd4 Bb4 c3 Re7 Qdd2 Rh7 Nd1 Na4 Be1 Nb2 Rd3 f3 Re3 f2 Rf3 f1R Nf2 Nd1 Nd3 Be3 Nf2 Nb2 Rg1 Bd4 Nh1 Be3 Rgg3 Bg1 Rf6 Rf4 Rf3 Rf5 Rff7 Rf6 Rb7 Rf4 Rfc7 Rff7 Rb6+
2r5/b1pr1b2/1PP1PK1Q/B3R1r1/1NkNRn1r/R4B2/2B3nb/3nRQ1n b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 e5 dxe5 fxg4 h4 g3 Kd2 g4 Ke1 Qg5 hxg5 Kd8 Be3 Ke7 Bc1 Ke8 Kd2 Kf7 Kd3 Ke6 Ke4 a5 b4 h5 c4 a4 f4 a3 b6 g2 g6 a2 b7 d6 c5 h4 c6 h3 f5+ Ke7 g7 h2 f6+ Ke6 f7 g3 b5 Nd7 b8R Nb6 Nc3 Nd5 Nf3 g1B Bg2 Ba7 b6 Nf4 Re1 h1N Bd2 Ne7 g8B Rh4 Nd5 Neg6 Nb4 d5+ Kd4 Bd6 e4 Ba6 Bh7 Bc4 f8Q Bb3 Rd8 Rc8 Qh6 Bc4 Rf8 Bb3 Rf5 Bc4 Rc1 a1R Rc3 Rc1 Qe2 Rd1 Ra3 Bb3 Qf1 Ba2 Bh3 g2 Bg4 g1R Bh5 Ng2 Bg4 Ke7 e6 Bh2 Re5 Kd6 e7 Bb3 e8R Bc4 Kc3 Kc5 Nd4 N6f4 Bf3 Bb3 Ne2 Kb5 Kd4 Ba2 Rh5 Bc4 Ke5 d4 Kf6+ Bd5 e5 d3 Bc3 d2 Bc2 Bf7 Nd4+ Kc5 Nd3+ Kc4 Ba5 Rb1 Rf5 d1N Rg5 Rb5 Rg4 Rd5 Nb4+ Nd3 Rge4 Rd7 e6 Ng3 Rg8 Nh1 R4e2 Ndf4 Rg5 Nge3 Rd5 Rg5 Re5 Neg2 R2e4+
4R1bn/B3qB2/RQB3pk/2r2PQP/rQ2pB2/N1r3bn/KP3b2/1N1n4 b - - 0 1 illegal: No possible last move, all moves rejected
4bQ1k/2nr1Rb1/q1P1pQK1/1B2Q2n/N6r/1PN2Rb1/PnRp3B/6Rr b - - 0 1 illegal: No proof kernel
n4nB1/4r2p/nQ3qRN/2Qb2rP/3N2p1/K3BP2/1R1PRb2/bN3kRr b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 dxe4 g4 Nc6 gxf5 Nb8 c4 Kd7 h4 a5 f6 Ke6 f3 Ke5 f7 Kf4 h5 Kg3 c6 g5 c5 e5 b6 e3 b7 g4 c7 e4 c6 e2 Ra2 a4 Nh3 a3 Bb2 Qf6 Qb3 Ne7 Bd4 Nd7 b8N Ra5 Qb6 Rg5 Rb2 a2 Be3 Bb7 c8R a1B c7 Bd5 Nc6 Ng6 Re8 Bc5 c8R Ngf8 Nd4 Rhg8 Rc6 R8g7 Rg1+ Kh2 Kf2 e1N Ke2 Nd3 Kd1 Nb4 Kc1 Na6 Be2 Qe6 Bc4 Qf6 Nf5 Bd4 Nf4 Bc5 Ne6 Bd4 Re1 Kg2 Nh6 Bc5 Re2+ Kf1 Kc2 Bd4 Kb3 Bc5 Rec8 Bd4 Ka3 Bc5+ Qb4 Nb6 Nd4 Na8 R8c7 Qf5 Rg6 Qf6 Bf2 Ba7 Qb6 e3 Bg1 Qe6 Re7 Qf6 Rg2+ e2 Be3 Rg8 Bb3 e1R Re6 Rg7 Re5 Nd7 f8Q Re7 Qc8 Nf8 Qcc5 Re2 Rg3 Rh2 Re6 Rh1 Re5 Be4 Bg8 Bc6 Bf2 Bd5 Re2 Bb8 Rg2 Bg3 Be3 Bf2 Rg1+
1rnkr2B/pq6/nQBR4/bb4R1/1r3QnR/1R2Pp2/3KP1PN/1Q1b1N2 b - - 0 1 illegal: No possible last move
2N2B1r/pN2r1Q1/2Q1B1PP/4n3/3QK1p1/rn2RBP1/1Rn1q1bb/b3B2k b - - 0 1 illegal: No proof kernel
N4Qr1/1RkB3N/Q1br3b/6bK/1Q1n2np/2R1P1p1/Pq1BBnP1/3B1q2 b - - 0 1 illegal: No possible last move
2B2Q1q/n4NN1/B2Q1B1n/KR2b3/3Rp2Q/bkP2Pp1/1P2b1B1/1qr2r1q b - - 0 1 illegal: No proof kernel
rQN2k1B/1qQ1bn1b/R5Rq/3rnP2/BnpB1p1r/1P6/P2KR3/4BN2 b - - 0 1 illegal: No proof kernel
b6B/Q4q1R/2n5/Bq3pPr/b1QN3N/kpK3nN/qr1N1PRP/2Q1b3 b - - 0 1 illegal: No proof kernel
1Q4n1/1r1r1b2/q1R3kb/B2P4/Q3BQ1p/1NNnR1Pb/rP1pQ3/q1R3K1 b - - 0 1 illegal: No possible last move
Bb2q3/1nN3Q1/3BqrN1/1R1p4/2bN1rb1/4PPqn/kpB2Q1P/1RB1K3 b - - 0 1 illegal: No proof kernel
QrR2Bq1/1RNB3b/2b1nRp1/rB6/kP3nPP/2n2q2/1r3B1p/1N3KQ1 b - - 0 1 illegal: No proof kernel
2R5/b1n2qb1/BB4p1/2Q1r1PB/2Q1rkN1/1R3qr1/PnNpB1P1/1Kb2Q2 b - - 0 1 legal: proof: e4 c5 d4 f5 dxc5 fxe4 b4 a5 bxa5 b6 h3 Ba6 Bh6 Be2 Bc1 Bg4 hxg4 Qc7 Bg5 Qc8 Bc1 Qd8 Kd2 Kf7 c4 Ke6 Kc2 Ke5 a6 h5 f3 d5 c6 h4 g5 g6 c5 b5 c7 e3 c8B h3 c6 h2 a7 e2 c7 e1B Kb2 d4 Bd3 b4 Bc2 d3 Bf5 b3 c8Q Bg7 Bd2 Qd7 Qf8 Rh3 Na3 Nf6 Rb1 Nh5 Qe8 Rg3 Be4 Nf4 Be3 Bd2 Nh3 Na6 Bb6 Nc7 Qg8 Re8 a8B Bc1+ Ka1 d2 Bed3 e6 Nf2 Qf7 Be2 Nd3 Qf1 Nb2 Ng4+ Kf4 Bcd1 e5 Bb7 e4 Nc2 e3 Bba6 Re4 Rg1 h1Q Qc8 Ne8 Qc4 Qh5 Rh1 Nc7 Rg1 Qh2 Rh1 Qg1 Rh8 Qf2 Ra8 Kf5 f4 Qf3 Rc8 Re5 Qc5 Ke4 f5 Kf4 f6 Re4 Beb5 e2 Qc4 e1B Be2 Bf2 Bd1 Qd5 f7 Bfd4 f8Q+ Qf7 Qa4 Bf2 Bbe2 Bc5 Qc4 Bg1 Ba5 Ba7 Qfc5 Nd3+ Ne5 Rd4 Na3 Qf2 Bh5 Qf3 Qe6 Rc4 Bb6 Rb4 Be2 Rd4 Rb2 Rd5 Ng4 Re5 Rc2 b2+ Kb1 Nf2 Rc3 Nd1 Kc2 b1R Bec4 Rb3 Be2 Rb4 Rb3 Rd4 Kb1 Rde4 Nc2 Nb2 Qec4
5q2/1k3Qn1/n2RP3/5N1Q/p1pBr3/PBN2P1b/bK1R1r1q/1N1B1Brn b - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 f5 gxf5 bxc4 h4 g4 Bg5 Be7 Bc1 Bg5 hxg5 Bb7 Na3 Ba6 Nb1 Bc8 Kd2 h5 Kc2 d5 b4 Kd7 e4 Kc6 b5+ Kb7 e6 c5 e5 a5 a3 g3 b6 c3 f6 a4 g6 d4 e7 h4 e8B g2 f7 h3 f8Q h2 g7 Na6 Ne2 g1R Be3 Bh3 Qf7+ Ne7 g8B Rh4 Ra2 d3+ Kc1 c2 Kb2 d2 Bd4 Ra7 Nec3 Re4 Qdh5 d1B Beb5 Bf3 Bbe2 Qf8 Bd1 c1Q+ Ka1 Rg7 Rd2 Qc2 Rg1 h1N Rg6 Bfg4 Rd6 Be6 f3 Ba2 e6 c4 Bh7 Rg1 Bf5 Qd3 Kb2 Qe2 Bb3 Qh2 Bg6 Re2 Bgc2 Rf2 Bd1 Ra8 Qg5 Rd8 Qgh5 Kb8 b7 Nf5 Qg4 Rd7 Qgh5 Kc7 b8N Ng7 Nc6 Kb7 Ne7 Rd8 Rc6 Rd5 Rd6 Re5 Bbc2 Ree2 Bb3 Re4 Nf5+
2n3n1/5Br1/R2P1q2/1p2RpR1/1K2kNP1/NQQ1B1bP/r2BbnqR/5b2 b - - 0 1 illegal: No proof kernel
r3q1N1/n2R4/np1K3P/1N3Bk1/4B2r/PN4Rq/1b1Qp1nP/Br1NQb2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 g5 f4 e4 c4 b6 h6 e3 c6 b3 a3 g4 c5 b2 c7 g3 c6 d6 Qe1 g2 Ne2 g1N Nd4 Nf3 Nb5 Nd4 N1c3 b1Q Bb2 Nd7 Bd3 Qc1 Be4 Ne6 Nd1+ Qc3 Rf1 e2 Rf3 Ra7 Re3 Ra4 Rb1 Bg7 Ba1 Bb7 c8N Nb8 Ne7 Na6 Rb3 Bc8 c7 Qe8 Qd2 Bd7 c8B Rc4 Rd3 Rb4 Rd4 Qh3 Re3 Rb1 Nc6 Rb4 Na5 Rb1 Nb3 Ne7+ Kc4 Nc6 Kd5 Na7 Rdd3+ Ke7 f6+ Kf7 f5 Nf4+ Kd4 Ng2 Kd5 Kg8 f7+ Kh7 f8Q Bb2 f6+ Bf5 f7 Kg6 Rc3 Kg5 Rc7 Rg8 Re7 Bg4 Bcf5 Bf3 Ke6 d5 Kd6 d4 Qe1 d3 Rd7 d2 Qg7+ Kf4 Qd4 Kg5 f8N Bg4 Ndc3 d1R Ng6 Rd3 Qd5 Rd4 Nd1 Rc4 Qdd2 Bf3 Ba8 Rh4 Bae4 Qe7+ Kd5 Ra8 Ne5 Qe8 Ng6 Nf4+ Kd6 Bg2 Ne7 Bf1 Ng8 Ng2 Rg3+
6q1/2k2N2/qp2BP1q/bR2br1b/1p2Qn1Q/1N4B1/1RP1PQ2/r1NK2Nn b - - 0 1 illegal: No proof kernel
2R4B/Q2Kb1B1/Pq1Ppr1r/2N1PB1r/Q2b3n/3qk3/1Rp2n2/1Rq2RN1 b - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 g5 h3 f5 b3 Be6 b4 axb4 Bg2 Bf7 Bf1 Bh5 gxf5 g4 Na3 g3 Nb1 Bg4 hxg4 Ra7 Rh6 Ra6 Rh1 Ra8 d4 Kd7 Kd2 Kd6 Kd3 h5 Ke4 b5 a4 c5 f4 g2 f6 h4 Kf5 b3 e4 c4 a5 h3 a6 b2 g5 b4 f7 h2 g6 b3 g7 c3 Nd2 b1Q Ra2 b2 Nb3 Nd7 Nc5 Qe8 Bd3 Ngf6 g8R Qc8 Qa4 Ng4 e5+ Kc7 Ke6 Kb6 d6 Rh5 d5 Nf2 Bf5 Qd3 Be3 b1Q Rb2+ Qb5 Bd2 c2 Be1 Qc1 Bb4 Qd3 Rh8 Bh6 f8Q Qb8 Qf7 Bg5 Rc8 Ra7 Qh7 Rc7 Qg7 Rc6 Qf7 Nf6 Qh7 Ne8 Kd7 Ng7 Bg6 e6 Nb7 Qdf1 f5 Rh3 Qh4 Ng4 Ba3+ Qb5 f6 Qe3 f7 Nf5 Qh6 Rh4 Nf3 g1B f8R Bf2 Rd1 h1R Rdb1 Qc1 Ng1 Bd8 Qd2 Rh6 Qd3 Bc5 Qe3 R1h5 Bh7 Nh4 Be4 Rh8 Rf1 Nf2 Bd3 Bf6 Bb4 Bd8 Bd2 Be7 Qed4 Qa7 Be3 Qb3 Be4 Qb8 Bg5 R8h6 Bd3 Ng2 Bf6 Nh4 Qe3 Qa7 Bh8 Qb8 Ke8 Qa7 d7 Qb5 Rd8 Rc8 d6 Kc6 Bg7 Kd5 Bf5 Qd3 Bh8 Qb8 Bg7 Ba7 Qb6 Rf6 Qc7 Be3 Nc5 Qb6 Qa7 Rfh6 Qb3+ Kd4 Qa4+ Kc3 Bh8 Kd2 Bg7 Bd4 Bh8 Bf6 Bg7 Rc7 Rc8 Ke3 Bh8 Bg5 d8B Rf7 Be7 Bf6 Bf8 Be7 Kd7 Rff6 Bfg7
2NQ1R2/BQqnKb1k/p3p2b/1P3Nr1/1PP1nQ1q/3Qr3/1Rn1q2B/5B2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Kd2 Kf7 Kd3 d5 f4 g5 h4 Kg7 b4 a6 c4 g4 h6+ Kh7 f6 e6 f7 g3 f5 g2 f6 Bd6 f8Q Bd7 f7 Qa5 h5 Qa3+ Nc3 Bf4 Qd8 Bd2 f8Q Be1 Ra2 Qa5 Bf4 Bd2 Nf3 g1Q Bh2 Nf6 Ne4 Qf2 Rb2 Qc7 Nd6 Qh4 Nc8 Ne4 Qf4 Be8 Rg1 Bc1 Rg8 Nd7 Rf8 Bf7 Qc2 Rg8 Qb3 Rg5 Qa3 Qf2 Nh4 Qe1 Nf5 Qh4 Qa5 Be3 Qb6 Rb8 Qb7 Bc1 Ke2 d3+ Kf3 d2 Ke3 d1N+ Kd4 Nb6 Qd7 Ne3 Qdd6 Nc2+ Ke5 Nf2 Kf6 d4 Qdd5 Nd7+ Ke7 d3 Qdd6 d2 Qd3 d1Q Qdd6 Bg8 Qd3 Kh8 h7 Qe2 Ne3 Kg7 h8B+ Kh6 Bd4 Ne4 Bb6 Bf7 Ba7 Kh7 Nf5 Be3 h6 Bd2 Qa8 Rb6 Qb7 Rd6 Qdg3 Rd3 Qgf3 Kg6 h7 Re3 h8Q Bc1 Qd4 Kh7 Qd3 Bd2 Qb6 Bc3 Qb7 Bg7 Qfd6 Bh6 Qff4 Qc6 Qdc7 Qb6 Qd8 Qc5+ Ncd6 Qc7 Nc8
1N4r1/nbq2RrQ/pPQ3P1/bNQrQ2n/B3qP2/1K3p2/1N2n3/3R1kB1 b - - 0 1 illegal: No proof kernel
nr1Nq3/3qB1B1/pp1R2BP/1rN1RRn1/B2QP3/kb6/2bPQ3/1r4bK b - - 0 1 illegal: No proof kernel
k1QN1q2/2nK1Rrp/rRrR4/6nq/BbbN4/2Pp1P2/6PB/2RBQ2b b - - 0 1 illegal: No possible last move
3Q4/Bk3bPn/P2q1QP1/1N3Np1/K1B3Bq/bn3p1b/Qr4nr/2RB2R1 b - - 0 1 illegal: No possible last move, all moves rejected
7q/1B1QNPb1/1q1Q2nR/r2Q2R1/1r1QKbb1/1P4BP/2pN1p1N/2nk3r b - - 0 1 illegal: No proof kernel
2n2n2/4rPBb/2PN2Bk/Qr5r/1bRB1pK1/q1R4B/2Pn1q1p/N4R1Q b - - 0 1 illegal: No proof kernel
rQBRb2R/1KR2pNq/4NQ1b/pbP2n2/2kn1PP1/8/Qq4Q1/2B2rr1 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 c6 Ke7 Qd2 Ke6 f4 d5 Kf2 h5 Kf3 h3 g4 h4 e4 a6 c4 h2 b6 h3 b7 d4 c7 d3 Nc3 Qg5 Na4 Nh6 Nc5+ Ke7 e6 Kd6 e5+ Kc6 Ke4 Qh5 e7 Qh4 e8R Be7 e6 Kb6 Kd5 Qf2 Rd8 Bg5 e7 Nc6 e8Q Bd7 c8Q Nf5 Qe5 Be8 Ne2 Ncd4 Ne6 Rh7 c5+ Kb5 Ng3 a5 Qa2 Rh5 Bg2 d2 Qf6 d1B Qc6+ Kb4 Bf1 Ba4 Rb1+ Kc3 Rb4 Qb2 Ba6 Rh4 Rb6 Bb5 b8Q Rh8 Nh5 Kb4 Rf1 h1R Rb7 h2 Rc7 Rh6 Rf2 Rf1 Bc8 h1Q+ Rg2 Kc3 Nhg7 Rh3 Qcb7 Rg3 Qc6 Qh6 Rh2 Rgg1 Rh5 Qg6 Rh8 Qh7 Qcb7 Ng3 Kd6 Bh6 Qg2 Kb4 Rcd7 Kc3 Kc7 Nf5 Kb7 Kb4 Rc7 Kc3 Qb1 Kc4 Qa2+
Rb5K/1q2Bp1P/1qPnrrN1/P1B4B/3nb2R/Q1N1k1nR/1bQp4/4R3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 Ke6 Kg4 d5 e4 g5 h4 b5 c4 d4 a4 d3 h6 d2 Kh5 g4 a5 b3 Ba3 g3 Be2 b4 Qc1 b2 Nf3 b3 Rh3 g2 Ra2 Ke7 e6 Kf6 e7 g1B e8R Bd6 e5+ Kf5 e6 Ke4 e7 Ra6 Ne5 Qc7 Kg5 Rc6 h5 Ba6 Rc8 Bh2 e8R Ne7 Kf6 Nd7+ Kg7 Nf6 Ra8 Nc8 Re7 Rf8 h7 Re8 h8B Qb7 h6 Bb8 Ng6+ Bhe5 h7 Kd4 Bh5 Ne4+ Kh6 Rb6 Bf6 Ng3 Kg7 Bb5 Bb4 Bc6 Ra4 Kd3 Ba3 Bc3 Re4 Bd5 Bd4 Rf6 Re1 Ree6 Kh8 Bh1 c6 Bf3 Be7 Nd6 c7 Bd5 Na3 b1N c8Q b2 Nb5 Na3 c5 b1Q Bf2 Nc2 Rah4 Be4 Qa3 Qb3 Nc7 Q3b6 Nd5 Nd4 Qc6 Nb3 Qca4 Be5 c6 Ba1 Bc5 Bb2 Nc3 Nd4 Rg1 Ke3 Qc2 Rf4 Rb1 Rff6 Re1+
1BNk3n/2R1P1nq/1PPb2b1/1nQr1Q2/2R1N3/r1pQ4/Q1q1BpK1/3N3r b - - 0 1 illegal: No possible last move, all moves rejected
1rq1N3/nk1bPN1p/1B6/QRnb3P/6RK/1rp2B1R/1Pq2R2/1q1QN1b1 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 g5 a4 d5 cxd5 Nh6 axb5 Ng8 f4 gxf4 Kf2 Kd7 g4 a5 e4 c5 h4 Kc7 e6 f5 b6+ Kb7 h5 a4 d6 f3 Kg3 f2 e7 a3 e8N a2 e5 c4 g5 c3 d7 f4+ Kh4 f3 e6 Ra6 e7 Nc6 g6 Nf6 g7 Na7 g8R Bh6 Be3 Ne4 Be2 f1Q Nd2 f2 Bf3 Qd3 Nc4 f1B Rg4 Qc2 Rh3 Ra3 Ne5 Rb3 Nf7 Bc4 Bd4 Qc7 d8Q Be3 Qd5+ Qc6 Qa5 Nc5 Rb1 a1Q Rc1 Qh2 Rc2 Bd7 Rd2 Qb1 Rf2 Kb8 b7 Qc8 Bf6 Bd5 Bd4 Ne4 Bb6 Nc5 Ne2 Rf8 Nd4 Rh8 Nc2 Bd4 Re2 Bg1 Rf2 Qg2 Ne1 Rf8 Rf1 Qgc2 Rf2 Qd2 Nf6 Qdc2 Bd8 Rg8 Rfh2 Rg6 Ne8 Rgb6 Rf2 Nc6 Qb4 Ka7 b8R Rb5 Rb6 Ka8 Qa5+ Na7 Rc6 Rb8 Rb6 Ba4 Rbb4 Bd7 Bb6 Kb7 Rb5
1n2K1n1/1qBNp1k1/b1R1Pqp1/2n1B2P/4bPB1/N3r1Q1/7r/q2N1RQB b - - 0 1 illegal: No proof kernel
b3B1N1/2rPR3/2Q1q1Qp/P3r1q1/QQn1Rnpq/3P1N2/kb2r3/B2K1R2 b - - 0 1 illegal: No proof kernel
3Nn3/r1bPnq1Q/2b1qBp1/2kQ3r/4Q3/1BP1RN1r/1K1p2P1/NN2qR2 b - - 0 1 illegal: No proof kernel
rRn1qQ2/1P3P1n/q3Q1P1/B1Bn1K2/2bNB3/p3RRp1/r2bN3/5Bqk b - - 0 1 illegal: No proof kernel
1R3Q1K/nP2pp1R/N2qr2q/2NNN2Q/5P1k/1BBr1r2/4QnPb/3n3b b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Nb8 d5 Bg7 Nc3 Kf8 Nb1 Bd7 e6 Bh6 exd7 Kg7 Qg4+ Kf6 Qd1 Bf8 Kd2 Kg5 Ke3 c5 b4 a5 b6 h5 b5 c4 b7 a4 b6 c3 Bd2 a3 Qe2 c2 Bc3 Nc6 b8N a2 b7 h3 Na6 Kh4 Kf4 c1Q+ Kf5 Qc7 d8Q h2 d7 Bh6 d6 Nf6 Qf8 Ng4 d8Q Na7 d7 Qd6 Qa5 Bf4 d8N Rh6 Ne6 Rd8 Nec5 Re6 f3 Bg3 Qab5 Qh6 f4 Nf2 Qa5 Nd1 Qab5 Bf2 Nf3+ Kg3 Qa5 h4 Ne5 h3 Qab5 Rd7 Qh5 Bg1 Bc4 Rd8 Bb3 Rd7 Qbe2 Rd8 Na3 Rd7 Rc1 a1R Nb5 Ra3 Nbc7 Rd8 Qg6+ Kh4 Ra1 Qb6 Ra2 Rd3 Qgh5+ Kg3 Rd2 Rf3 Rd8 Qd6 Nd5 Rd3 Qhf3+ Kh4 Re8 Bf2 Rb8 Bg3 Rg1 h1N Rf1 Nhf2 Rh1 Bh2 Qh5+ Kg3 Ng6 Qg7 Kg5 Qf6+ Kh6 Qg5+ Kg7 Qh6+ Kg8 Rf3 Qf5 Rd3 Ne5 Kh4 Qh7 Bg3 Kh8 h2 Re1 h1B Rf1 Ne4 Rf3 Bh2 Rg3 Nef2 Rg7 Qh5 Qh6 Rf3 Rh7 Rd3 Qhg7 Qh6 Qg6 Ne3 Bb2 Rd2 Bc2 Ned1 Ba4 Rf3 Bc3 Rd4 Bb3 Rdd3 Qh5+
q3Bb2/1p3n2/NP2P1P1/kQ2bqB1/1r2r1R1/1nQ4Q/1p1RrRK1/qR2N3 b - - 0 1 illegal: No proof kernel
b2k2qR/1p1R2nP/q3rB1K/rp1Nn3/B2Q1BPP/1n1q3R/4N2Q/4b2B b - - 0 1 illegal: Other
4N3/Kp1NkPPR/1Bq2r2/2pb1BRq/b4NQ1/2R1PN2/r2b3n/2q2nQ1 b - - 0 1 illegal: No proof kernel
4rq2/1p1pb3/1R1rnQPN/K1BNB1Q1/2R2BPP/8/1n1kRrBq/1bq5 b - - 0 1 illegal: No proof kernel forced: wxLB
n2BQ1r1/P1Q3n1/5Rq1/6RQ/NP1k1p1B/4r2p/3bbPrQ/1RqqN2K b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 h4 Bf8 hxg5 a5 b4 a4 e3 Ra7 Bc4 Ra8 Bb3 axb3 Kf1 Ke7 a4 Ke6 g4 f5 Kg2 c5 g6 h5 a5 d5 b6 h4 g5 d4 g7 Kd5 g6 b2 e4+ Kc4 b7 d3 e6 d2 e5 Qd3 a6 Qa3 e7 Kd5 e8Q c4 e6 c3 a7 c2 e7 Nh6 g8R Nd7 b8B Nb6 g7 Qa6 Bc7 Kd4 Qdh5 d1Q Bg5 c1Q Nc3 b1R Bd8 Rb3 Na4 Re3 Qc6 h3+ Kh2 f4 e8Q Bc5 Qc7 Bg4 Bh4 Be2 Rb1 Nf5 Rf8 Rh6 g8Q Ng7 Rf6 Rg6 Qb3 Rc8 Qa3 Na8 Nf3+ Kc4 Re1 Rg2+ Kh1 Qc6 Rg1 Qb6 Rf7 Qg6 Ne1 Kd4 Qb3 Re7 Qg3 Re3 Qh2 Bb6 Bde7 Rd8 Rf6 Rc8 Qeb5 Rg8 Qe8 Ke4 Qg3 Bd4 Rf7 Bc3 Rf8 Bd2 Rf6 Kd4 Qh2 Rg5 Bd8 Rg4 Rg3 Rg5 Rf3 Rg2 Rg3 Qgc2 Rg4 Qg6 Rg5
2brRQb1/P3Bq2/1r1P3K/1pR5/3qNPp1/R2Qb3/1q1NB2B/n1kB1n2 b - - 0 1 illegal: No proof kernel
NnqB1R2/P1Q1bpQ1/1Rb5/bQ1r2Bq/Q2p4/1Kn2P2/2P1N1Rk/4r2q b - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 h5 dxc5 e6 g4 Qg5 gxh5 Qe7 Bg2 Qd8 Bd5 exd5 Kd2 Ke7 Kc3 Ke6 e4 Ke5 h4 b5 a4 g5 a6 b4+ Kb3 d4 a7 d5 a5 g4 f3 g3 c6 d3 h6 g2 c7 d2 h7 Kf4 h5 Kg3 h6 d4 a6 Bg4 c8Q Qg5 e5 Qh4 e6 Nd7 e7 Bf5 e8R Qh5 Qf1 d1Q Nd2 Nb8 Qb5 Be4 Rb1 Nf6 Nc4 Nd5 Nb6 Be7 Rf8 Nc3 Bg5 Bc6 Rh2 Rg8 h8Q Qd3 h7 Qf5 Qb7 Qc8 Qg7 Rh8 Rh4 Rg8 Rf4 Kh2 Ne2 g1B h8B Be3 Rg4 Bd2 Rg3 Be1 Qc7 Bd2 Qh6 Rg6 Bg7 Rd6 B7f6 Rd5 Qg7 Be1 Kc4 b3 Rb2 Bd6 Bd8 Be7 Rb1 b2 Kb3 Bd2 Rc1 Nd7 Rb1 Rb8 a8Q Rb7 Qa7 Nb8 Na8 Be1 Ra1 Rb6 Ra2 b1Q+ Rb2 Qc1 Qab7 Bd2 a7 Qh1 Qa6 Be1 Qa3 Ra6 Qab4 Ra1 Q4a4 Rc1 Rb1 Bd2 Rb2 Re1 Qbb7 Na2 Kc4 Ba3 Rb5 Be7 Kb3 Ba5 Qa6 Bd6 Rb6 Be7 Q6b5 Nc3 Rg2+
1q1nQ3/pb3B1B/q1r4N/3NPP1K/2k3Q1/2P2R2/2qbRpbQ/rnB1Q3 b - - 0 1 illegal: No proof kernel
qq5Q/p3B1n1/RpB2K1P/3q2N1/1Pb1R2P/1Qrbn1r1/BQ2k3/N1B1n3 b - - 0 1 illegal: No extended proof kernel
3n3k/p2bP3/B1n3rb/1r3PB1/1B2p1RQ/1r1b1N2/P1N3Qq/K2Nq1RN b - - 0 1 legal: proof: g4 f5 e4 h5 gxh5 c5 b4 Qa5 bxc5 Qd8 d4 e5 dxe5 fxe4 Kd2 Kf7 Kc3 g5 Kb2 Kg7 c4 b5 h4 d5 f4 b4 c6 b3 h6+ Kh7 e6 d4 c7 g4 c5 g3 c6 g2 h5 d3 e7 d2 Qc2 d1Q Nf3 g1R Rh4 Q1d2 Ba6 Rg2 Na3 Nd7 Rg4 Bb7 c8N Qe8 c7 Nc5 Nd6 Qd7 c8N Ne6 Ndb5 Nf6 Nc3 Bc6 Nd1 Rb8 Nd6 Rb5 Nf5 Qe1 Ng3 Nd8 f5 Qdd2 Nh1 Nd5 Rb1 Qdf2 Ka1 Nb4 Bg5 Bd7 Qe2 Rg8 Nc2 Kh8 h7 Bh6 Qf1 Rh2 Qg2 Rg6 Rc1 Rh3 Rb1 Kg7 h8B+ Kh7 Bd4 Nbc6 Bc5 Kh8 Bd6 Qfg1 Bb4 Qh2 Rc1 Bf8 h6 b2+ Kb1 Bg7 h7 Bh6 Ng1 Rb3 Nf3 Kg7 h8Q+ Kf7 Qe5 Kg8 Qeg3 Kh8 Nc3 Qe2 Rg1 Qf1+ Nd1 Qe1 Na3 Rb6 Qh4 Rb5 Kc2 b1B+ Kc1 Rd3 Kb2 Rb3+ Ka1 Bd3 Nc2
b1n2R1N/5Q1R/k1qN3n/1Q2P3/p3P3/K1Q2BQ1/Pr1p1n1B/1Nr1bn1n b - - 0 1 legal: proof: g4 g5 f4 h5 b4 c5 bxc5 e5 fxg5 hxg4 d4 Na6 dxe5 Nb8 Kd2 d5 Kc3 Kd7 Kb3 Kc6 c4 b5 h4 Kb7 e4 a5 g6 f5 h5 f4 h6 a4+ Kb2 d4 c6+ Ka6 c5 f3 g7 f2 h7 d3 c7 g3 c6 g2 Rh3 b4 Rg3 b3 Qf3 Qe8 Rg6 Nd7 Qf7 Nh6 g8Q Bb7 c8Q Nb6 c7 Bb4 Rg4 Rb8 Rg7 Qc6 Be2 f1N Nh3 g1N Bf4 Ng3 Ng5 Nh1 Qce8 Ba8 Bf3 Nh3 Bh2 Be1 Ka3 b2 c8Q+ Rb7 Qcc7 Nc8 Qed7 N3f2 Qdd5 Qe8 Qc3 Qc6 Qdb3 Rb6 Qge8 Rf8 h8N Rg8 Rh7 Rb7 Ne6 Rg1 Nd4 Rb6 Nb5 Rf1 Nd6 Rb4 Nd2 b1N+ Kb2 Rb8 Qeg8 Rb6 Qg3 Nh3 Qc7 Bf2 Bd1 Rg1 Nf1 Nd2 Ka3 Rb8 Qd5 Rb2 Rc1 Nb3 Nd2 Rf1 Nb1 Nd2 Qe7 Re1 Rc2 Nf1 Re2 d2 Qf8 Bb6 Rf2 Bd4 Rf5 Bf2 Bf3 Rc1 Qe8 Be1 Rf8 N3f2 Qef7 Nf5 Qdc5 Nh6 Qb5+
4B1bR/5n2/bB1n1k2/2r1p1P1/3QPNbp/Kb1qQbrP/2N5/1B1Q1RQ1 b - - 0 1 illegal: No possible last move
1B1B1r2/n1K5/r3r3/BNP5/N3r1q1/1BPbPpR1/rn1b1Rp1/1Q1R1Q1k b - - 0 1 illegal: No possible last move, all moves rejected
5k2/2B1N1BK/qr1nr2P/2nQ4/B2rBR1Q/bP2Qp2/PR1r2p1/1r2N2b b - - 0 1 illegal: No proof kernel
3K1n2/1BR1r2P/R1R3q1/4bP1R/pQrnn1QQ/P3b1Np/1n1B4/1N1k1n2 b - - 0 1 illegal: No proof kernel
K2n2N1/2b1b1P1/2Nq1rp1/Q1Pb1n1P/2B4B/R1p5/R2QNk1Q/2b1br1Q b - - 0 1 illegal: No possible last move
n2r1n2/kb1b2PP/2Q1p3/br2b3/2q1BR1p/1RPNB2b/1K2QQ2/2RNR3 b - - 0 1 illegal: No proof kernel
K3N2Q/N2kP2n/B1B3bQ/4r3/2pQBb2/1bBP1R1R/P2p2n1/r2q1b1b b - - 0 1 illegal: No proof kernel
4KBb1/1B1r1N2/n3Q1q1/2R2P2/1P3Rpr/3N2Qp/kBr2bnP/B2rbQ2 b - - 0 1 legal: proof: e4 b5 g4 f5 gxf5 c5 a3 d5 b3 b4 axb4 c4 bxc4 dxe4 Ke2 Kf7 Ke3 h5 Kf4 a5 Kg5 e5+ f6 Ke6 Kg6 e3 d4 e4 f4 h4 f5+ Kd6 Kf7 g5 d5 e2 c5+ Ke5 c4 e1B c6 e3 c5 h3 d6 e2 d7 g4 c7 a4 c6 a3 Bg2 a2 Na3 Rh5 Nf3+ Ke4 Nb5 Rh4 Rf1 Ne7 Bb2 Na6 Rc1 a1R Rc5 Ng6 Nd6+ Ke3 Qb1 Ra7 Ne5 Kd2 Nd3 Ra2 Rf4 Bg7 Ba1 Rc2 Bh1 Bb7 c8Q Qb6 c7 Bd5+ Ke8 Bg8 f7 Bd4 f8B Bdf2 Nf7 Qf6 d8B Qg5 Rd4 Nf4 Bb7 Ng2 Qe6 Qg6 Qbb3 Kd1 c8Q Kd2 Bf6 Kd1 Bd5 Rd7 Bb7 Kd2 Rf4 Kd1 Ne5 Kc1 Qg3 Kb1 Qb8 Ne3 Nd3 Ng2 Qb6 Ka2 Bfb2 Bd2 Qb5 e1R+ Qe5 Rd1 Qe1 Bc3 Qc6 Bd2 Qf1 Bde1 Qe6+
5nB1/1n5Q/bb1k3r/r2N1P1p/1Nbr4/1Rr1Qp1P/NK2RP1B/1Q1Q3q b - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 bxc5 exd4 a4 f5 axb5 f4 Nh3 Qf6 Ng1 Qf5 gxf5 Ke7 Qd2 Kd8 Qd1 Ke8 Kd2 Ke7 c4 a5 Kc2 d5 e4 h5 h3 g5 b6 g4 b7 f3 c6 g3 c7 a4 c5 d3+ Kb2 d2 c6 d4 e5 g2 e6 d3 Ra2 Na6 b8Q Kd6 e7 Rh6 e8Q Nf6 Qe3 Nc5 Ne2 g1R Nf4 Nfd7 Nc3 Ba6 Nfd5 Nb7 Nb4 Be7 Ra3 Nf8 Nca2 Bd8 c8Q+ Bc7 Qba7 Bb6 c7 Rg8 Rb3 a3+ Kc3 Rg4 Qcb8 Rd4 Be2 Bc4 Re1 Ba6 Bf1 Bc4 Re2 Ba6 Qe1 d1B Bb2 Bc2 Qd1 d2 Ba1 Bcd3 c8N+ Kd7 Ne7 Bdc4 Kc2 Rd3 Be5 Rd4 Qe1 d1R Bh2 R1d3 Qd1 Rc3+ Kb1 Bcb5 Ned5 Bc4 Nc1 a2+ Kb2 Rc6 Qbf4 Rh6 Qfe4 Re8 Qb1 Re5 Nf6+ Kd6 Nfd5 Nc5 Qh7 Nb7 Ka3 a1Q+ Nca2 Qb2+ Ka4 Qd2 Ka3 Qe1 Kb2 Rg4 Rc2 Rd4 Bd3 Qh1 Re2 Bcb5 Nf4 Red5 Bc4 Rc5 Bf7 Bc4 Bg8 Ra5 Nfd5+
B1QRQ3/B2r4/n1B3n1/1BPPp1b1/q3P1r1/Nbn1RR1N/2p2n2/2b1K2k b - - 0 1 illegal: No proof kernel
NN1n4/1R1b4/2bQ1BBk/1rpb2p1/KbnQ1PQP/5Pn1/5r2/2B1BR1q b - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 f5 b4 axb4 e3 h5 gxh5 f4 exf4 Rh7 Ne2 Rh6 Ng1 Rh8 a4 Kf7 d4 e5 Kd2 b5 Kc2 c5 Kb3 g5 h4 Kg7 d6 e4 h6+ Kh7 a5 e3 d5 e2 f3 e1N d7 Nc2 d6 Bg7 a6 Ne3 a7 Ne7 Bd3+ N7f5 Na3 Nc4 Rb1 Nc6 Ne2 Bc3 Nd4 Qa5 d8Q Bd7 Qc8 Nd8 Nc6 Re8 Bc2 Re2 Nb8 Rf2 Qd4 Kg6 h7 Kh6 h8B Ng3 Bg6 Qa6 Nc6 Rb8 a8Q Rb7 Rf1 Bd2 Nc2 Qa1 Nb8 Bc6 d7 Rb6 Na3 Rb7 Kc2 b3+ Kd1 b2 Kc2 b4 Kb3 Rb6 Bf6 Rb5 Ka4 b3 Qaa6 Bb4 Qb6 Nb7 d8B Bd5 Bc7 Nd8 Qg4 Bc6 Be3 Bd7 Qbd6 Bc6 Rbe1 b1B Ba5 b2 Bc1 Bf5 Re7 b1B Rg7 Ba2 Rb7 Ne5 Nc4 Bfd7 Nb6 Bad5+ Ba3 Nc4 Na8 Qc3 Bc1 Qe1 Rh1 Qf1 Rg1 Qg2 Re1 Qh1 Rf1 Ba3 Bad2 Bb4 Be1
1r5R/n2q1N2/bn2rN1K/QPB2pPP/5pNb/1B3rnQ/1R4rR/N1k5 b - - 0 1 illegal: No proof kernel
nr2QQB1/n3Kn2/bR6/PP2R1N1/1B3qp1/r1p1bP2/1R1B4/RNnkb3 b - - 0 1 illegal: No proof kernel
3r3k/1nNrn3/3Pb3/Bn1QQ3/1pq1N1B1/rP1PB1b1/R1NRNn1p/4K3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 exf5 b4 Qc2 Qd7 Qd1 Qb5 axb5 Bg7 Be2 Bh6 Bf1 Bf8 f4 Kf7 g4 Kg7 d6 e5 g5 a5 b3 h5 b6 c5 g6 a4 b7 h3 Be2 a3 Nf3 h4 Bf1 c4 Ng5 e4 Be2 e3 Rh2 a2 Na3 c3 Ne4 c2 Bg4 Ne7 Qe2 Rh7 f6+ Kh8 f7 Nbc6 b8B Nd4 Bc7 Be6 Ba5 Rd8 f5 Nb5 f6 Bg7 Rg2 h2 f8N h1N f7 h3 Rf2 h2 d3 Be5 Bd2 Bg3 Rd1 c1Q Nc2 Be5 Rg2 a1R Rf2 Ra3 Rg2 Bd7 Ne6 Nf2 f8N Bg3 Ned4 Be6 g7+ Kg8 Qf3 e2 Bg5 Qf4 Qe3 Qf7 Ra1 Qf4 Ra2 Qf7 Kd2 e1N Ne2 Qf4 Rg1 Ng2 Rd1 Qf7 Qc5 Ne3 Qe5 Nc4+ Ke1 Qf4 Rd2 Qf7 Be3 Qf4 Bc7 Na5 Bcb6 Nb7 Ba5 Bd5 Ne6 Bc4 Nc7 Be6 Nc5 Qc4 Ne4 Rd7 Bf4 Rh8 Be3 Kh7 Beb6 Rhd8 g8Q+ Kh6 Qgg5+ Kh7 Qd5 Kh8 Be3 Nc5 Qgf5 Nb7 Qfe5+
2R2b2/1brn2QR/2Pp3N/1rb1BP1R/Q3Rq2/1Br1k1P1/pK2Nr2/Q3n3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 Kf7 c4 a5 Kc2 e5 f4 h5 b4 h4 c5 d6 b6 h3 b7 d3+ Kb2 h2 c6 e4 g6+ Kf6 b5 e3 b6 a4 g7 d2 g3 e2 Nh3 e1B Nf2 Ra7 Nc3 Ne7 g8Q Nd5 Ne2 Ne3 Qa2 Nd7 b8R Nc2 b7 Rh5 Bg2 Qa5 Bd5 Qb4+ Bb3 Qc4 Rb1 Qe4 Qa1 a3+ Kc3 a2 Bb2 Ra3 Ra8 Rh7 b8R Bb7 Ra7 Ra5 Rc8 Rb5 Nd3 Rf7 Ne5 Bf2 Ra5 Re7 Nf7 Ne1 Nh6 Bc5 Qc2 d1R Rc1 Kg7 f6+ Kg6 f7 Rd2 f5+ Kg5 Ra7 Qf4 Qe4 Kf6 Qa4 Ke5 Rb1 Rd4 Rd1 Ke4 Rd3 Rdb4 Rd4+ Ke3 Re4+ Kf2 Bc1 Rc4+ Kb2 Rc3 Bd2 Qe5 Bg5 Qf4 Bf6 Kf3 Be5 Kf2 Rg1 h1R Rg2+ Kf3 Rh2 Rf1 Rh1 Rf2 Rh5 Bg7 f8Q Rf7 Qd8 Bf8 Qg5 Re7 Qg7 Rf7 Rb4 Ke3 Re4+ Kd2 Qg8 Nb6 Qa5 Ba6 Re7 Bb7 Qa4 Rg7 Ree8 Rc7 Re7 Nd7 Rh7 Kd3 Qg7 Kd2 Rb4 Ke3 Re4+
Nr1B2r1/2b5/2p1n1r1/bB1Q1RB1/2q2R1R/p4bK1/P2RP1P1/1QN1krn1 b - - 0 1 illegal: No proof kernel forced: bxLB
1QQ5/rRKn3N/2pP1B1b/Pq2N1pB/k3nQ2/bP6/1nb2NR1/1Q1n3r b - - 0 1 illegal: No possible last move, all moves rejected
3QK2k/1Q1B4/npR2b1N/2Prn2P/2pb1Br1/3b3b/P3q3/2NRRrRQ b - - 0 1 illegal: No proof kernel
5B2/n4nK1/Rp1Q1RN1/Pq1Np3/N1r1QPnP/rB4rb/k3r2R/2R3b1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kf7 Kf3 c5 Ke4 e5 a4 g5 f4 b3 h4 b2 d4 g4 a5 c4 h6 b6 f6 g3 d6 Ke6 d7 g2 f7 c3 h7 c2 Qe2 Bc5 f8R Qe8 d8R Qb5 Nc3 b1R Na4 Nh6 Rh2 Rb3 Ba3 Rg8 h8N c1R Ng6 Rc2 Rc1 Nf7 Qd3 Ra7 Ne2 g1N Nec3 Nc6 Nd5 Nf3 Bb4 Bd7 Ra8 Rc7 Ra6 Ra3 Bh3+ Kd6 Be6 Re2+ Kf5 Na7 Kf6 Kc6 Qe4 Rg7 Nh8 Rg3 Ng6 Kd6 Kg7 Rc8 Rf2 Nh2 Rg2 Ng4 Rh2 Nh8 Rf6 Nf7 Nde7 Rc6 Bb3+ Be6 d5 Rc8 Bc3 Bg1 Bd4 Rc4 Bc5+ Kc7 d6+ Kd7 Nd5 Kc6 Nb2 Bf5 d7+ Be6 Bd6 Bf5 Bb8+ Kc5 d8Q Be6 Nc3 Kb4 Nba4 Nf2 Qd7 Bh3 Bc7 Ng4 Qd1 Ra1 Nd5+ Ka3 Bd6+ Qb4 Bc2 Ka2 Bf8 Qb5 Qdd4 Rb1 Qc5 Rbb3 Qd6 Ra3 Bb3+
NN3K1n/k6P/nb5r/5b2/3n1rQP/p1B2qRp/RQ3BPB/1B1r2rN b - - 0 1 illegal: No proof kernel
q4N2/1rnB1brP/bk1P4/1r1n1N1R/1pN1B2Q/1pr2N1K/R6P/b1Q3B1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 b5 a4 g5 e4 f5 d4 c5 e6+ Kc7 a5 f4+ Kh3 b3 a6 f3 h6 f2 a7 b4 h7 c4 e5 c3 d6+ Kc6 d5+ Kb7 d7 c2 e7 Nf6 e8N Qe7 d6 Nh5 e6 Qf7 d8Q Bg7 Bd3 Qf8 Nd2 Nf6 Ra2 Na6 Nc4 Rb8 a8N Nc7 Nf3 Nfd5 Be4 Ba1 Be3 c1R Rg1 Rc3 Nab6 f1B+ Rgg2 Kc6 Bg1 Ba6 e7 Rb7 Ne3 Bfc4 Qc1 Qg8 Ng7 g4+ Kh4 g3 e8B+ Kc5 Bd7 Qe8 Rge2 g2 Ngf5 Qf8 Qg5 Qa8 Kh3 Rg8 Qh4 Rg7 Be8 Rg5 Nd7+ Kb5 Nf8+ Kb6 Bd7 Rg7 Bf2 g1R Rec2 R1g5 Bg1 Ne7 Rg2 Bf7 Rg3 Rh5 Rg6 Ned5 Rh6 Rhg5 Rh5 Ne7 Nh6 Rb5 Nhf5 Ned5 Nc4#
1k1Br3/2rQ2PB/2P2R1K/1nN2QRQ/b2n1Nqn/2Bpb1BP/7p/3b1n2 b - - 0 1 illegal: No proof kernel
1N2rb1B/4bRPQ/kP1b1PKn/6N1/1n1BB2p/N1qb1n2/3R2p1/Nr2Q3 b - - 0 1 illegal: No proof kernel
KBn1r3/1Q1bBkP1/Bpb1P1r1/r7/qR1R4/1PN3Nb/3p2rN/1n2Q1B1 b - - 0 1 illegal: No possible last move, all moves rejected
kNrnq3/2rnQ1p1/3P1PN1/4B2P/1R2n1bQ/2pB3B/1R5n/1K1Rbr1R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 f4 Kd7 h4 b5 a4 e5 d4 c5 Kd2 Kc7 Kc2 Kb7 h6 e4 a5 c4 f6 e3 d6 c3 d5 e2 h5 e1R d7 Ka7 d6 Re2+ Nd2 b3+ Kb1 b4 h7 b2 a6 Qe7 d8Q Re5 f5 Qe6 f7 Ne7 Nb3 Re4 Ne2 Nd7 Nc5 Rc4 Bh3 Nc6 Qe7 Nd8 Bf4 Qe3 Qh4 Be7 Qde1 Rf8 h8R Rb8 Ra4 Ka8 a7 Rb7 Na6 Rbc7 Be5 Qe4+ Ka2 b1N Nf4 Nd2 Ng6 Nf1 Nb8 b3+ Ka1 R4c6 Rb4 b2+ Ka2 Qe2 Kb1 Nh2 Rg8 Bg5 Rh8 Bd2 f6 Re8 f8R Rc4 Rf7 Rf4 Re7 Qb5 Qe3 Be1 Rf8 Rf1 Qe2 Kb7 a8B+ Ka7 Bd5 Qc6 Bg8 Ka8 Bc4 Qe4+ Bd3 Qe3 Ka2 b1N Rh8 Nd2 Rg8 Ne4 Kb1 Nb6 Rb2 Bg4 Rh8 Rc8 Rb7 Re7 Re8 Nd7 R7b4 Rf7 Re7 Nf8 Reb7 Rfc7 Rd2 Nd7 Rd1 Qh6 Rb2 Qh8 R7b4 Qe8 Bf4 Nec5 Qe7 Ne4 Be5
1nkrb1n1/3b1Bp1/QP5P/4bPN1/1KBBQ2N/2R4N/1b2qR1p/n1r3N1 b - - 0 1 illegal: No proof kernel
bQB4N/4rpn1/bpB1BRQ1/1P2N1nq/2r4r/RP1n2P1/2Q2B2/K2k2n1 b - - 0 1 legal: proof: h4 d5 c4 e5 cxd5 g5 hxg5 Ba3 f4 Be7 a3 Bb4 axb4 exf4 d4 Kd7 Kd2 Kd6 Kc2 c5 e4 a5 g6 h5 g3 f3 b3 f2 Kb2 b6 b5 a4 g7 c4 Qe2 a3+ Ka2 h4 Bh3 f1N Nd2 c3 Ndf3 c2 Ne5 Ba6 Bc8 h3 Ng6 h2 Nf3 Nd7 Nfe5 Nf8 Be3 Nd2 Bf2 Rh4 Rhf1 h1B Nh8 Ne7 g8B Nf3 Bh7 Ra7 Bhf5 Ng1 Bfe6 c1N+ Kb1 Nf5 Qc2 a2+ Kb2 Ke7 d6+ Kf6 d7 Kg5 d5 Ng7 d6 Qf6 d8Q Re7 d7 Qh6 Qe8 Nh7 d8Q Qh5 Qd6 Bg2 Qg8 Bf3 Qb8 Bh1 Rb1 Nd3+ Ka1 Bg2 Neg6 Bf3 e5 Ba8 Rbe1 Nh3 Re4 Ng1 Ra4 Rc4 Ra3 Rh4 Bc5 Rc4 Rf5+ Kg4 Bf2 Ng5 Rf6+ Nf5 Nf8 Kf3 Qg6 Rh4 Nd7 Rc4 Qc1 Ke2 Qc3 Ng7 Qc2+ Kf1 Bf5 Rh4 e6 Rc4 Ne5 Rh4 Qc5 Ke2 Bh3 Kd1 Qcc7 Rd7 e7 Rdd4 e8B Rc4 Bhe6 Rh1 Nf3 Rh3 Bg4 Rd4 Qc5 Rd7 Be6 Re7 Ne5 Rh4 Qc6 Nc5 Kb2 a1R Qce4 Rc1 Bc6 Rc2+ Ka1 Rc4 Qd4+ Nd3 Qb2 Qh7 Qc3 Qh5 Qc2+
1B1Nn2N/3KPBn1/N4b2/3pk3/2P1nR2/2p2rB1/bPbN4/1RbQrqQ1 b - - 0 1 illegal: No proof kernel
7b/4p2Q/3B3n/1Br1PR1B/1rQ1pn1P/3Pn3/krbRq1NQ/B1K3Nn b - - 0 1 legal: proof: e4 a5 c4 f5 g4 h5 gxh5 d5 cxd5 a4 e5 a3 Qa4+ Nc6 Qe4 fxe4 bxa3 Rh6 a4 Rh8 a5 Nb8 Kd1 Kd7 a4 c5 h4 g5 f4 b5 d6 Kc6 d7 Kd5 h6 c4 a6 c3 a7 b4 a5 b3 a6 b2 f5 g4 f6 g3 h7 g2 f7 Nh6 Be2 Bg7 f8Q Nc6 Bh5 Kc4 Ra2 Kb3 Qf2 Na5 Na3 b1R Nc4 Rb8 a8Q Rb2 a7 Ba6 Qd5 Rb4 Ne3+ Nc4 a8B Re8 Qe6 Bh8 Bc6 Qc8 d8B c2+ Ke2 Bb5 d3 Ba4 Bb5 Qa8 Ba5 Rc8 Bc7 Qa5 Bd2 c1N+ Kd1 Ne2 Bc3 Nf4 Bd6 Rc5 Kc1 Qc7 Qf7 Qc8 Qg3 Qg4 Qh2 Qe2 Bd4 Rd2 Ba1 Rb2 Nh3 g1N Ng2 Nf3 Rd1 Nd4 Ng1 Ndf5 Rf1 Ng3 Qd5 Nh1 Qd4 Bg7 h8Q Bf6 Qh7 Bg7 Qd5 Bh8 Qc6 Ne3+ Bc4+ Kc3 Bb5 Bc2 Rf3 Kb3 Rf2 Qg4 Rd2 Qe2 Ra8 Rd5 Rf8 Ka2 Rf5 Rc5 Qd5+ Rbc4 Qd4 Rcb4 Qc4+
kBB1BN2/nQBPRKP1/3r4/1QQ5/p3nPR1/n4n2/1r1b1pq1/2r2bN1 b - - 0 1 illegal: No proof kernel
1b4N1/r2PR1Pp/2B2br1/PNB5/1nbRB2b/1Q1n2k1/qQ2Kp2/1r1B2N1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 g4 Kd7 a4 Ke6 d4 c5 e4 f5 g6 b5 a6 c3 g7 c2 g5 f4 g6 f3 a5 f2+ Kd2 c4 a7 b4 Nc3 b3 Ra4 b2 Nb5 b1R Ba3 c1B+ Ke2 c3 Bc5 c2 Qd3 Nf6 g8N Ba6 Qb3+ Qd5 g7 Bf4 Rh3 c1B Re3 Nbd7 Rb4 Re8 a8B Bb2 Bg2 Bc3 Bf3 Be7 Qb2 Qa2 d5+ Kf7 d6 Ke6 Bc6 Nd5 Rd4 Bh4 Bh1 Nb4 Bg2 Nf6 d7 Nfd5 Bf3 Nd3 Bg4+ Kf7 e6+ Kg6 e5 Kg5 e7 N5b4 e6 Bb8 Ree4 Rf8 e8B Rf6 e7 Rg6 Bf3 Kf5 Bf7 Kg5 e8Q Kf5 Re7 Kg5 Nd6 Bc4 Bfe4 Kf4 Nb5 Kg3 Qc8 Rc1 Qb7 Rb1 Nf6 Rc8 Ng8 Rc7 Qb6 Ra7 Be6 Bd5 Bg4 Be6 Ke3 Bc4 Bd1 Bd2+ Ke2 Bdg5 Nd6 Bf6 Qb5 Nc2 Q5b3 Nb4 Nb5
1N2n3/QnBP1p1k/1PR1N1r1/4B1bp/3bKP2/qr3B2/1Nn3Q1/4nNRr b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 e4 Na6 d4 Qd6 e5 Qd8 d6 Nb8 d5 Bg7 Nc3 Kf8 Nb1 Bd7 e6 Bh6 exd7 Kg7 Qg4+ Kf6 Qd1 Bf8 Ke2 Kg7 Kd3 e5 b4 h5 f4 c5 g4 a5 b6 h3 b5 h2 b7 c4+ Ke4 a4 g5 c3 b6 a3 g6 a2 Bg2 c2 Nf3 Na6 b8N Be7 Ne1 Qf8 d8B Rh6 d7 Bg5 Rg1 h1R Bb2 c1B d6 Be3 Nd2 Bd4 Rc1 a1N Bc7 Nc2 d8N Qe7 d7 Qa3 Bf3 Nc5+ Kf5 e4 Nd3 e3 Nf1 e2 Ne6+ Kh8 g7+ Kh7 Qe1 Rg6 Qa5 e1N Qa7 Nf6 g8Q+ Kh6 Bc3 Nb7 Nb2 Ne8 Ke4 Bdf6 Qf8+ Kh7 Qc5 Bd4 Qd5 Bc5 B3e5 Bd4 Qa4 Ra5 Qa2 Rb5 Qa7 Bf2 Qd5 Rb3 Qd2 Bd4 Qg2 Nb4 Rc5 Nbc2 Rc6
NR6/1Pp5/p2rPnB1/1RN3q1/r2n2nN/b1Q1PbBn/RQNKb3/1k6 b - - 0 1 illegal: No possible last move, all moves rejected
Q3K1Rb/1p5N/n3nP2/4r1QN/rN1Bp1r1/1k4P1/bq1PN3/nB1BR1n1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 h5 a4 c6 f4 h4 a5 e6 g6 b3 d6 Kb4 g3 h3 d7 h2 g7 b2 a6 c5 a7 c4 f6 c3 f5 c2 f7 Na6 f6 Kb3 Ne2 Qb6 d8N Rh4 Na3 b1R Bb2 Nh6 g8B Nf5 Bd4 Bg7 f8N Rg4 Nh7 Bh8 Bh3 Bd7 Re1 h1N Bf7 Bc8 Bg6 Ng7 Bd3 Qb5+ Kd6 e5 Ke7 e4 Ne6 Nf2 N6f4 Be6 Nh5 Bf7 Bg2 Ne6 Bf3 Nh3 Ra2 Ra1 Qc1 Rc8 a8Q Rc5 Qd1 Bg8 Qc1 Qb4 Ke8 Re5 Qd1 Ng1 Qb1+ Ka4 Qb2 c1N Bb1 Nb3 Nc2+ Kb5 Qa3 Kc4 Qa5 Qc3 Ra3 Qb2 Ra4+ Kd3 Rc4 Ra4 Rc8 Na1 Rd8 Reg5 Qf5 Kc4 Qg6 Re5 Qg5 Qb4 Nc1 Qc3 Bd1 Qb2 Ne2 Bf7+ Kd7 Kb3 Rg8 Be8+ Ke7 Bb5 Kf7 Bc4 Ke8 Bd5 Na3+ Kb4 Rf1 Bb3 Re1 Ba2 Nc2+ Kb3 Nb4+
r3B1k1/1p1B1B2/Np2Rn2/1PPrq1nb/K1Pnn3/2B1Q2b/3R3b/NQ1Q4 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 hxg5 Nf6 d4 Kf7 dxc5 Ke8 Qd6 Ng8 Qb6 axb6 Kd1 Kf7 f4 e5 g4 h5 b4 d5 c4 h4 Kc2 h3 Kb3 h2 a4 e4 g6+ Kg7 f6+ Kh6 a5 d4 a6 e3 b5 d3 f5 d2 a7 d1N f7 Kg7 f6+ Kh6 g7 Kh7 g5 e2 Nc3 e1N Ka4 Nd7 Nd5 Ne3 g6+ Kh6 Bh3 Rh7 Nc7 Ne7 g8B Rb8 a8Q Ne5 g7 Bd7 Bd2 Kg6 Na6 N1c2 Re1 Nd3 Ne2 N3f5 Nd4 Rh6 Bc3 Nd6 Re6 Qc7 Nb3 Nd5 Rd1 h1B Rd2 Bf3 Na1 Rh5 Bh7+ Kh6 g8B Ne5 Be4 Nd4 Bg6 Ne4 B8h7 Bg7 f8Q Nf7 Qd6 Nfg5 f7 Ndf6 f8Q Bg4 Qd5 Qe5 Be8 Rc8 Qa7 Ra8 Bhg6 Bf3 Qfd6 Bf8 Bhf5 Kg7 Qe7+ Kg8 Bg4 Nf5 Qd3 Nd4 Qb1 Bc8 Qd7 Bd6 Qd8 Qf5 Qb8 Bh2 Qf4 Qe5 B4f5 Bg4 Qe3 Bh3 Rc6 Be6 Qd5 Bf7 Bfd7 Rh4 Re6 Rf4 Bf5 Bh5 Bfg6 Rf5 Qd6 Nc2 Qdd3 Nd4 Qd1 Qf4 Q3c2 Rd5 Qcb1 Qe5 Bgf7+
1N2n2Q/1p2KP1n/Q2rnPB1/1RbrRqr1/1B1rP2Q/1R6/3R3p/2N2bk1 b - - 0 1 illegal: No proof kernel
n1Qrn3/pB1p1nn1/2rQRNP1/r1q5/1N6/PbRB3K/kP3R1B/3bR3 b - - 0 1 legal: proof: h4 e5 c4 b5 g4 bxc4 d4 g5 dxe5 Bc5 f4 Bb6 h5 Bb7 h6 Qc8 fxg5 Bd4 g6 Be3 Nh3 Qd8 Ng1 Bc8 g5 Bc5 Kd2 Bf8 Ke1 Bg7 hxg7 Qf6 Rh6 Qe7 Rh1 Qd8 Kf2 Ke7 Kg3 Ke6 e4 f5 a3 c5 Be2 h5 Qb3 h4+ Kg2 h3+ Kh2 f4 Qd3 f3 Bf4 f2 Bc1 f1B Bf4 c3 Qb5 c2 Ra2 c1N Qd3 c4 Ra1 c3 Nf3 c2 Nfd2 Bb7 Nc3 Rh5 Nd5 Qf8 Nb4 Nf6 g8R Ne8 g7 Na6 g6 Qc5 Rf8 Rd8 Rf5 Bg2 Re1 Bd5 Bg3 Bc4 Rf2 Nac7 Qd4 Na8 Bd3 Bb3 g8B+ Ke7 e6 Bf3 e5 Bd1 Bf4 Rf5 Kg3 h2 Kh3 h1N Ne4 Ng3 Nf6 Nh5 Bh2 Nhg7 Rb1 Ne2 Ra1 Ng3 Rc1 Ne4 Qd5 N4d6 Qc6 Rb8 Qa6 Nf7 Qd6+ Kd8 e7+ Kc8 e6 Kb7 Qe5 Kb6 Qd5 Ka5 Qd6 Nh6 Bf7 Ka4 Bg8 Rd8 Bf7 Nec7 e8Q Rg5 Qef8 Nce8 e7 Rf5 Bd5 Nf7 Bb7 Rg5 Rb1 c1R Qh8 Qd5 Qf8 Rc6 Rc1 Qc4 Rc3 Ra5 Qh8 Qc5 Bf4 Nec7 e8R Bc4 Rfc2 Rc8 Bh2 Ba2 Rc4 Kb3 R8e7 Rb8 Qd8 Nce8 R7e6 Rbc8 Q8c7 Rd8 Qc8 Bb1 Rf2 Bbc2 Na6 Ka2 Rc3 Bb3 Nb4+
5Bbn/2N1Rnn1/4B1k1/1r1n2RN/PRR1Bpr1/bK1P1p1Q/4QP2/q1q5 b - - 0 1 legal: proof: c4 a5 b4 e5 bxa5 h5 g4 d5 gxh5 Rh7 cxd5 Rh8 Qa4+ Nc6 Qb4 Nb8 Qf4 exf4 Kd1 b5 Kc2 c5 h4 f5 a4 Kf7 e4 g5 e5 g4 d6 g3 d7 f3 a6 g2 e6+ Kf6 a7 f4 e7 b4 e8Q c4 h6 c3 d3 Be7 h7 Nh6 h5 Kf5 Na3 Qc7 d8R Nf7 h6 Be6 Ne2 g1N Rb1 Na6 Rd4 Kg6 Nb5 Rg8 h8R Nh3 h7 Ng5 Rh5 Rb8 a8B Nc5 Ng3 Qe5 Nc7 Rb5 Ba3 Bc4 Bh3 Nce6 Bd5 Ng7 Bhe6 Ba2 Rc4 b3+ Kd1 b2 Kc2 Bb4 Re1 b1N Be4+ Nf5 Qe7 Rg7 Ra8 Nh8 Rb8 Ngf7 Qe8 Ba5 Be7 Bb4 Bf8 Ba3 Qe7 Rc5 Rbb4 Rb5 Rc6 Bd5 Rcc4 Qd4 Kb3 c2 Re2 c1Q Re3 Qa1 Rg5+ Kh6 Nh5 Nc3 Re2 N5d6 Rf5 Ne8 Qd6 Kg6 Qe5 Ba8 Re1 Nd5 Qb2 Rg8 Qe2 Ng7 Ng3 Ne8 Bc8 Nd8 Rc6+ Ndf6 Qd1 Kf7 Rc4 Rg4 Bd5+ Kg6 Re7 Ng7 Be4 Bd5 Qe2 Bg8 Bd7 Nd5 Be6 Nhf7 h8Q Ne5 Qe3 Ndf7 Qh3 Nh8 Nh5 Nef7 Qe1 Rg1 Qe2 Rg4 Rg5+
2r2rNR/3Rr1rQ/1k2n2N/1PpqPR2/1Q2Bpq1/8/bPR5/1nK1BQb1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 d4 Kd7 Kd2 c5 e4 Kc7 h4 f5 h6 a5 h7 g5 d6+ Kb7 d7 f3 e5 a4 d5 g4 h5 g3 h6 f2 d6 a3 Nf3 a2 Nc3 g2 Nh4 g1R Rh2 Kb6 Bd3 f1Q Ne4 Qh3 Qf1 Ne7 Nf6 Qg4 Be4 Na6 Ng8 Nc7 Kc2 Ned5 Bd2 Bb7 Be1 Rc8 Kc1 Ne6 Rc2 Nc3 Rb1 Bd5 Ra1 Qc7 d8Q Nb1 d7 Bg7 Qg5 Qb7 d8R Bc4 Qf6 Qd5 Rd7 Rg2 Qg5 Bf6 Qgf4 Bg5 Qd2 f4 Nf5 Bh4 Qb4 Bf2 Rf7 Nd2 Rb1 a1R Rf8 Ra3 Ra1 Raa8 Ra7 Ba2 Rd7 Bg1 Rdd8 Rf2 Nge7 Qf3 Rf6 Rf8 h8Q Qe2 h7 Nb1 Ng8 Ra7 Nfh6 Rg2 Rf5 Re7 Rd7 Rg5 Qg7 Qg4 h8R Rg6 Qh7 Rg5 Rc7 Rgg7 Rd7
3q4/1nB1k1r1/RR1r1p2/1Q1qP1Q1/2PnbP1r/3N1r1R/B2pR3/QK2Nb2 b - - 0 1 legal: proof: d4 b5 b4 e5 dxe5 g5 h4 gxh4 a3 c5 Qd4 Bh6 bxc5 b4 Qd3 b3 Qd1 Be3 Ra2 Bd4 Ra1 Bc3+ Bd2 Bb4 axb4 Nh6 Bc1 Ng8 Kd2 h5 e4 d5 g4 a5 e6 d4 c6 f6 c7 a4 b5 d3 b6 b2 b7 h3 e7 h2 g5 a3 g6 h4 g7 a2 Nc3 b1Q Nf3 h3 Na4 Nd7 b8Q Ra7 Ne1 Qb7 Nc5 Qd5 Qb5 Ba6 c8R Rh4 Rb8 Nh6 Rb6 Nf5 f4 Nd4 Ba3 Kf7 Kc1 d2+ Kb2 Rb7 Ncd3 Nc5 e8R Rd7 c3 Nb7 Bd6 Rh7 Bc7 Rd6 Re6 Rh4 e5 Rg4 Rc1 a1R Bg2 Ra3 Kb1 Rg3 Qda4 Rg6 Bf3 Rg4 Bd1 Rg6 Bb3 Rg3 Ba2 Rf3 Rg1 h1R Rg3 h2 Rh3 Rg1 Rd1 h1B Rc1 Bg2 c4 Bf1 Qaa5 Rg4 Qc3 Rh4 Qa1 Rg3 Nc5 Raf3 Ncd3 Nc5 Rc3 Bb7 Rh2 Ba8 Re2 Nb7 Rb3 Rd7 Rec6 Ke7 g8Q Rd6 Ra6 Rg7 Rcb6 Na5 Qh7 Bc6 Qg6 Nb7 Rba3 Be8 Qg5 Bg6 Ra8 Be4 R3a6 Qd7 Rh8 Qd8 Rh7 Rg4 Rh1 Rh4 Rh3
r1Q1rB2/3RnN2/R1R1pK2/Q1rP1P2/BN3p2/4rP1k/2b1nR2/1q1Bqb2 b - - 0 1 illegal: No extended proof kernel
5K1k/1Qr1n3/1P3pQ1/r2prRb1/2N1BR2/1R1BBNbB/r1n1PPq1/5q2 b - - 0 1 legal: proof: b4 e5 c4 b5 cxb5 g5 a4 e4 h4 gxh4 a5 d6 b6 e3 b5 Ne7 a6 Bb7 axb7 Na6 dxe3 Nb8 e4 Ng8 e5 Qd7 Qa4 Qe7 Qd1 Qd8 Kd2 h5 Ke3 c5 Kf4 a5 Kf5 a4 g4 c4 e6 d5 g5 a3 g6 h3 e7 c3 g7 c2 Qe1 f6 Ke6 a2 Na3 h4 Nc4 h2 Bg2 h3 Nf3 Ra5 Qd2 Nc6 b8Q Nb4 b7 Rh7 Rb1 a1R Qg5 R1a2 Be3 c1B Rb3 Nc2 Qa8 Rh5 b8R Rh7 Rg1 h1Q Qb7 h2 Bh3 Qg2 b6 h1R Ra8 Qf1 Qf5 Bd2 Rg5 Rg1 Rh5 Rg5 Qd3 Qc8+ Kd6 Re5 Rf5 Kf7 Ra7 Nh6 g8B+ Kg7 Bf7 Kh8 Bg6 Ng8 Ra6 Rb5 Ra4 Ra5 Qe4 Bh6 e8B Rc7 Bb5 Bg5 Bh7 Qe8 Qg4 Bf4 Qg6 Ne7 Ba6 Qg8 Bb5 Rc6+ Kd7 Qg7 Ke8 Bg3 Rab4 Qh6 Ba6 Qg5 Kf8 Qg4 Na3 Rc3 Bd3 Rc7 Re4 Bc1 Nc4 Bd2 Bd4 Bg5 Be3 Qe1 Ref4 Qf1 Bg2 Qh3 Be4 Qhh1 Bh3 Qhg2 Bd3 Qh2 Qh6 B5h4 Rg5 Qhg2 Qh5 Qa1 Qe8 Qe1 Bhe4 Qef1 Rgf5 Bg5 Qg6
q3r2Q/2nK2QP/1BN2bn1/P1kB2Rb/p1P1b3/p1Q2RR1/2R3rq/1b2N3 b - - 0 1 illegal: No possible last move, all moves rejected
nR4Bk/2br1P2/1B1n2qn/NqP4n/N1Q2p2/P1pQ3N/br2R1NR/6K1 b - - 0 1 illegal: No proof kernel
1K2n1BB/Q1B1bPq1/bN3N2/PpN1pRrN/P4R2/q2q3n/3q4/r1k2Q2 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 h4 gxh4 c4 Be6 cxd5 Bc8 Ke2 Kf7 Kf3 Kf6 Kf4 h5 a4 b5 g4 c5 d4 e6 d6 h3 d5 c4 g5+ Kg7 Ke5 h2 f4 c3 d7 c2 d6 h4 g6 Kh6 f6 h3 g7 Rh7 f7 Ba6 f5+ Qg5 d8N Qd2 f6 Kg5 d7 Bb7 Bb2 c1Q Nc3 Ba6 Nb7 Be7 d8B Nh6 g8N Rh8 f8Q Nf7+ Ke4 Ra7 Bc4 Nd7 Qf1 Rh5 Nc5 Rc7 Ba2 Kg4 Qh6 Rg5 Nd5 Qcc3 Qh8 Qa3 Ne2 Rc6 Ng3 Rc7 Rg1 h1Q+ Rg2 h2 Qg7 Qg1 Nb6 h1Q Be5 Qhh2 Rf2 Qh7+ Rf5 Rc8 Bec7 e5 Nh5 Qg6 Qh7 Qgg3 Rc1 Qg7 Rc4 Qh3 Rd4 Qhd3+ Kd5+ Qf4 Qe1 Kf3 Qf1+ Ke3 Kc6 Kd2 Bd5 Kc2 Ba2 Qfd2 Rdf4 Nd6 Be6 Nf8 Bd5 Ng6 Be6 Rb8 Kd7 Rb7 Bf7 Ne8+ Kc8 Ra7+ Kb8 Rg1 Nh6 Kb2 Bg8 Rg5 Ng4 Kc2 Re4 Nf4 Rd4 Nh3 Rdf4 Qf7 Qg7 Qf8 f7 Kb2 Qh6 Qg7 Qd6 Kc2 Ngf6 Kb2 Qd4+ Kc2 Bd6 Rd7 B6c7 Rd5 Qe4 Rd4 Qb7 Re4 Qa8 Re1 Qa7 Ra1 Ne6 Qh6 Nc5 Bd6 Ng4 Bf8 Bf6 Be7 Bh8 Qg7 Ngf6 Kb2 Qe2 Kc1 Qf1+
R1Q1q2r/2RB1p2/r2q1P1q/2PR4/B2N1B1k/2pb1Q2/q2PNb2/2B2nnK b - - 0 1 illegal: No proof kernel
1r2b3/B1q1P3/2Bk1P2/1QqBQ3/rRp2K2/b1n2R2/1r1p1Q1P/rBN2Nn1 b - - 0 1 illegal: No proof kernel
4R3/1r2p3/1nn2N2/RpK1Q1qq/P1Brb1R1/1qRqN1Q1/PP5b/2B1kN2 b - - 0 1 illegal: No proof kernel
3B2k1/1r1qpN1Q/2bP3B/q2N1nBb/1p1bPbNr/2R5/1R2BPn1/1K3Q2 b - - 0 1 illegal: No possible last move
br2RN2/b1QqpK2/2qP1np1/B4Q2/rN4PB/N2R2n1/5nQP/3Qk1n1 b - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 b5 a4 f5 axb5 h4 exf5 h3 g3 Kf7 Bg2 hxg2 Ra3 Ke8 Ra6 Rh3 Ra1 Rh8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 f4 c5 b6 c4 f6 g6 b7 c3 f5 a4 f7 a3 g4 a2 d6 c2 d7 Bg7+ Ke6 Ra4 f8N Rh5 d5 Bd4 d6 Ra6 f6 Rc5 f7 Bf6 Nf3 g1N Nd4 Rb6 Na3 Na6 b8Q Ra5 Qc7 Rb8 Bg5 c1N Bh4 Ra4 Ndc2+ Kb3 Qb7+ Nb4 Qg2 Bb7 Rb1 Qc7 d8B Qc6 Ba5 Ba8 Ra1 Nbd3 Nb4+ Qc2 Rb1 Nce2 Rc1 a1Q Rb1 Nh3 Rf1 Bc3 Rf3 Ndf2 Rd3 Ng3 Nd5 Ka2 b4 Bd4 b5 Ba7 b6 Nf6 b7 Qc6 Rb5 Qb1 Nb4+ Kb2 Rh5 Qbc2 Rh8 Ng1 Rg8 Qc7 Rh8 Q2c6 Rg8 Rc8 b8Q Qd8 Qc7 Rb8 Nd7 Qe8 f8Q Qc8 Kf7 Q8b7 Qdf3 Kc1 Qfc8 Qb5 Re8 Qf5 Nf8 Qd7 Rb3 Kd2 Rd3+ Ke1 Qd5 Qd8 Qcf5 Qc8 Qb3 Q8d7 Qd1+
2nQ4/n2P4/N6B/PP2bp1Q/1K1pknr1/QBR1nq2/1Rb1q2N/r1Q2R2 b - - 0 1 illegal: No proof kernel
2RKQ2q/3P1Q2/1pp1r3/bn2n1R1/PnPb1NNB/2q1rR2/2R5/1B1k1nQ1 b - - 0 1 legal: proof: e4 g5 b4 a5 f4 axb4 fxg5 d5 exd5 Qd6 g4 Ra6 h4 Bf5 h5 Bg6 hxg6 Qd8 Ne2 Ra5 Ng1 Ra8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kf5 Kd4 a4 e5 c4 h5 g7 e4 d3 b3 d6 e3 g6 b6 g5 e2 d7 e1B Ra2 h4 Rc2 b2 Nd2 Ke3 d4 b1N d5 c6 d6 h3 Bd3 h2 Ne2 Nc3 Nf4 Nb5 Rf1 Nf6 g8R h1Q g7 Rh6 g6 Qf3 Ne4+ Bd2 Ke5 Nd5 Nf2 f5 Ke6 Nb4 Kf7 Qc8 d8Q Nd7 Ke8 Ne5 d7 Bc5 Rh8 Rb8 g8Q Bd4 g7 Qh3 Qf7 Re6+ Qe7 Ra8 g8R Qg3 Rg5 Qf3 Nh5 f4 Ba3 Qh3 Qc1 f3 Nf4 Qb8 Qc8 Ra5 Kd8 Qg3 Qf7 Qa8 Ne4 f2 Nf6 Kf3 Ng4 Qb8 Rfh1 f1N R1h6 Qe1 Rf6 Qe3 Bh7 Qc3 Qb1 Ra8 Bc1 Be1 Be3 Ra5 Bf2 Ra8 Bh4 Bd2 Nh3+ Ke2 Rf3 Ra5 Qb2 Kd1 Nf4 Qd6 Re8 Qf8 Qb8 Qh8 Qb3 Qa1 Qe3 Qc3 Qg1 Na2 Qf8 Nd3 Qf7 Qb2 Rc3 Na3 Kc7 Rae5 Qg2 Re3 Qg1 Ne5 Bb1 Nb5+ Kc8 Qa1 Rc2 Ba5 Reg8 Nd6+ Kc7 Nb4 Qbf8 Qc3 Q8e7 Qe1 Rc8 Qc3 Qee8 Nb5+ Kd8
4r1b1/b2P1N1R/p1p1N2K/3QNQ2/1P1n4/1NR1r3/Pnq3nQ/Bnk2q1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 e4 e5 fxe5 Ne7 exd5 Ng8 c4 bxc4 Ke2 Kd7 Ke3 f5 Kf4 g5+ Ke3 g4 Kf4 c3 d4 a6 b4 g3 h4 c2 d6 Kc6 d7 Kd5 e6 g2 e7 Nf6 Kg5 Ke4 h6 f4 d5 f3 h7 f2 d6 Nc6 h5 Ng4 h6 Ne3 Nf3 g1N Bg2 f1Q Nbd2+ Kd3 Bb2 Nd4 Rc1 c6 Ba1 Nge2 Rh3 Ra7 Bh1 Ng2 Nb3+ Ke3 Rh5 Nc3 Ne5 Nb1 Rh4 Qb6 d8N Qc5 e8Q Be6 Qf7 Re7 Qf5 Bg8 d7 Re6 Rh5 Bd6 Rh4 Bb8 Rh5 Re7 Ne6 Ba7 Kg6 Nb5 Qd5 Nd4 Rh3+ Ke2 Rc3 Qc4 Rd1 c1N Rdd3 Qc5 Rh3 Kd1 Rh2 Nd3 Rh4 Bf7+ Kg7 Rc8 h8N Rce8 h7 Bg8+ Nhf7 Nb2 h8Q Qcc4 Rh7 Qcd3 Kh6 Qc2 Ned8 Re6+ Ng6 Re4 Ne6 Re3 Qhe5 Qg1 Qh2 Qf1 Nbc5 Kd2 Nge5 Kc1 Nb3+
5b2/KR1p4/Brq3r1/bP3N1B/1BqQ2R1/2p1R3/2P2kPQ/bb1nRN1n b - - 0 1 legal: proof: e4 b5 a4 g5 axb5 e5 h4 Bh6 hxg5 Bf8 d4 f5 dxe5 fxe4 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 f4 a5 b4 h5 e6 c5+ Kc4 a4 b6 h4 Kb5 a3 g6 e3 g7 Ke4 e7 e2 e8R+ Ne7 g8B e1B f5 a2 f6 h3 b7 c4 f7 h2 Be2 Nc6 b8Q Nd4+ Kc5 Rh6 b5 Ba5 Nf3 c3 Bf4 Raa6 Re1 h1Q Bd6 Ke3 Nh4 Qf1 Nf5+ Kf2 Bh5 Rg6 Nd2 Nd5 R8e3 Bb7 Bh7 Qe2 Nf1 Rb6 Be7 Qd3 Qh2 Ne2 Rb1 a1B Rb4 Qe8 Rg4 Ng3 Bd6 Qe2 Qd4 Qe4 Be7 Nh1 Bd6 Bg7 f8R Qe6 Rb8 Bf8 Be7 Bc6 Rb7 Qd3 Reg3+ Ne3 Bg8 Qf6 Bd5 Qe2 Bf3 Bd5 Be4 Ba2 Rh3 Re6 Bd6 Bb1 Rhg3 Bb4+ Kb6 Ba5+ Ka7 Qc4 Bb4 Rb6 Rb8 Qg8 Bb7 Qc4 Ba6 Qd6 Rb7 Qdc6 Qh8 Nd1 Rge3 Qd6 Qf6 Qdc6 Qd4
1knK2b1/2Pb3r/R4P2/b2Qp2p/4NP1B/n2rqNq1/1bRBN3/2QBN3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 h5 Kc4 d5+ Kc5 Kd7 g4 Kc7 c4 d3 b4 d4 f6 a4 b6+ Kb7 b5 d2 g6 d3 g5 a3 g7 a2 Ne2 Qe8 Na3 Bf5 Nc2 Nh6 g8Q Bg7 Rh2 e6 Kd6 Ra6 c5 Ra4 c6+ Kc8 Ne1 Na6 b7+ Kb8 f3 Ka7 b8N Nb4 Kc7 Rh7 Nd7 Ra3 Ne5 Nf7 b6+ Ka8 Rf2 Nc2 b7+ Ka7 Rg2 Nd6 b8B+ Ka8 Ba7 Nc8 Bf2 Qg6 Kd7 Kb8 Bh4 Rc3 Rf2 Na3 Kd8 Bf8 Qc2 d1Q Bd2 Bb4 Qc1 Qb3 Bh3 Qg7 Bg4 Qa7 Qf7 Qe3 Qd7 Be4 Qd5 Bf5 f4 Qg3 N5f3 e5 g6 Be6 g7 Bd7 Nfg1 Qe3 g8N Qg3 Nh6 Qe3 Rb1 a1B Nf5 Bb2 Nd6 Qg3 Rh2 Qe3 Ne4 Qg3 Be3 d2 Ngf3 d1B Bd2 Rd3 Ra1 Qc3 Ra2 Bb3 Ra1 Qd4 Rf2 Qe3 Rg2 Nb5 Ra6 Na3 N2c3 Nc4 Qe6 Rd6 Nh2 Ba4 Bd1 Qg7 Nhf3 Bb3 Qg8 Na3 Qc4 Qd4 Be3 Qg3 Rc2 Qc5 Bd2 Qe3 Qf7 Rd3 Ne2 Ba2 Qc4 Bb3 Qd4 Bg8 Qd5 Ba5+ c7+
1K2Q1qQ/1Bp1qR2/r2B1P2/2n2PN1/1kr2P2/1R2NQ1b/2RRqp1b/3n3q b - - 0 1 illegal: No proof kernel
7N/2pn3p/n1Bb3k/q1R1R3/B1QP2Pr/1bB1q2N/rn1n1P1K/3R1R1Q b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 g4 Kf7 b4 Kg6 d4 a5 d6 e5 d7 a4 b6 a3 b5 a2 b7 e3 b6 e2 Bd2 e4 Nc3 Bc5 Nb5 Be7 Nd6 Ra7 Bc3 Nc6 b8Q Ra5 b7 Qe8 d8R Nb4 Bg2 Be6 Nh3 Nf6 Rf1 Nd7 Nf7 Na6 Rb1 Kg7 g6 a1N Qc8 Bf8 b8R Bd6 R8b5 Nb3 Rc5 Nd2 Qb3 Rf8 Qc4 Ra2 Nh8 Rf5 Qa8 Rh5 Rd1 Kh6 g7 Rh4 g8B Qh5 Re8 Qd5 Rc6 Qa5 Rc5 Bd5 Re5 Be6 Qb4 Bb3 Bd5 Nc4 Bc6 Nb2 Kd2 e1N Ke3 Nf3 Kf4 e3 Kg3 e2 Ba4 e1Q Qc4 Nd2 Bgc6 Qe3+ Kh2 Nb4 Qag8 Na6 Qgd5 Ra3 Qe4 Ra2 Qh1
bKN2R1B/nP1Bq1rp/PQbn4/p3k3/q4r1P/1qq5/QRN1B3/R4R2 b - - 0 1 illegal: No proof kernel
K5B1/1pq2Q1R/3Q3q/3RP2p/b4q2/q1Pn3N/2NRrPkN/N1rnB1b1 b - - 0 1 illegal: No proof kernel
6bN/q2r1QRr/1Q1BKP2/R2pb1PN/rb1P2Qk/4p3/6q1/1BqnRR2 b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 a4 Ne4 h4 gxh4 a5 Nc3 b6 Nd5 b5 Nf6 Ne2 Bc8 Ng1 Ng8 a6 Nc6 Qe2 Na5 Qd1 Nb7 axb7 Bg7 Ra5 Bh6 Ra1 Bf8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Kd5 e5 b8Q c5 g4 h5 b7 a5 f6 e4 f3 e3 b6 h3 f4+ Kh4 f5 h2 g5 a4 f7 a3 f6 a2 Nc3 c4 Bd3 Rh7 Nge2 Nh6 Nf4 Ra4 Ne4 c3 Ba3 c2 Rf1 h1R Nd6 c1Q Bb1 Qdc7 d3 Be7 f8Q Ng4 Nf7 Bb4 Nh8 Nf2 Qf7 d6 Qf3 Nd1 Qa7 Rh2 b8R Rd2 b7 Bd7 Ra8 Be6+ Kd4 Qa5 Qb6 Qa7 b8R Bb3 Rb7 Bc4 Bc2 Be6 Rb1 a1B+ Ke4 Bd5+ Kf5 Be5 Ra1 Bb3 Bb1 Ba2 Qd7 Bg8 Qf7 d5 d4 Rc2 Re1 Rc7 Ke6 Rd7 Qe2 Kg3 Rf1 h4 Re1 h3 Nh5+ Kh4 Rf1 Bf8 Bd6 h2 Qf3 h1Q Qe2 Qb8 Ra5 Qa7 Qf3 Qg2 Qe2 Kh3 Qg4+ Kh2 Nf4 Nc3 Nh5 Qcd2 Bg6 Rd8 Rae1 Qc1 Bc7 Bb4 Bd6 Nd1 Re7 Rd7 Bb1 Qa2 Kf5 Qg2 Qe6 Qcb2 Rg7 Qc1 Qe4 Kh3 Qf7 Qgd2 Ke6 Qg2 Qf3+ Kh4 Qg4+
7q/1B3N1p/n3Q1bb/KB1n2RP/pn1r1kR1/4NP2/PBq3b1/1Q1NqB2 b - - 1 2 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 Ke7 e4 Ke8 Bg5 fxe4 Bc1 a5 g3 b5 f3 Ra6 Na3 Rf6 Nb1 Rf4 gxf4 Qc7 Be2 Qb6 Bf1 Qd8 Kd2 Ke7 Kc3 Ke6 h4 Kf5 e6 d5 h5 g5 c6 a4 c7 g4 e7 d4+ Kb4 e3 c4 d3 c5 e2 e8B e1N Rh3 d2 Ka5 b4 c6 g3 Na3 g2 Nc2 b3 Ne2 g1Q Ne3+ Ke6 f5+ Ke5 f6 b2 f7 b1Q Rg3 Bh3 Nc3 Nd3 Bb2 Bh6 f8N Bg2 Ne6 Nf6 Ng5 Kf4 Nf7 Qc2 Qb1 Nd5 Ncd1 N3b4 Rg5 Qf6 c8B N8a6 c7 Rf8 Rg3 Qh8 Beb5 Rd8 Bb7 Qf2 c8Q Qe1 Qe6 Rd7 Nf2 d1B Rg5 Be2 Nfd1 Bd3 Qc1 Bh3 Be2 Bg6 Nf2 Qed2 Qh1 Ndc7 Rag1 Qdc1 R1g3 Rd4 Qg1 Q1d2 Qb1 Bg2 Nfd1 Ncd5 Bf1 Qe1 R3g4+
3B1r2/2bb1R1n/5qqQ/6Np/P4P2/KBQ1B2n/1pN1qb1P/NkR1N2n b - - 0 1 illegal: No possible last move, all moves rejected
1Qq1n2q/N1rp4/1Q5n/1BR2rnq/R2P2B1/2KNr1N1/2PPpBb1/k6B b - - 0 1 illegal: No proof kernel
3b1N2/1Bp1Q1nr/2RN2P1/n1r2NB1/1qP3qP/3r1n2/KBQ2p2/3Rq1kN b - - 0 1 legal: proof: g4 b5 a4 e5 axb5 h5 d4 hxg4 dxe5 Ne7 f3 Ng8 Bh6 g5 Kd2 g3 Ra3 g2 Ra5 g4 Ke1 g3 Bc1 Bb7 Ra1 Bd5 Bg5 Be6 Bc1 Bg4 fxg4 Bg7 Nh3 Bh6 Ng1 Bf8 Kd2 Ke7 Kc3 Ke6 Kb3 f5 c4 a5 h4 d5 e4 f4 b6 f3 b7 a4+ Ka2 f2 b4 d4 b5 d3 g5 d2 g6 a3 b6 Qd7 Nf3 g1N Bg2 Ne7 Bb2 Nc8 Nc3 Bb4 Qc2 d1R Ne2 Nc6 b8N Na5 b7 Qd2 Nd7 Rh7 b8B Be7 Ba7 Nd6 Be3 Bd8 Bg5 Qb4 Rb1 Rd3 Ra1 Nh3 Rhd1 Nf5 Bh1 g2 Ng3 g1Q Bg2 Rb8 Nh1 Rb5 Rab1 Bf6 Ra1 Ng7 Nd4+ Ke7 e6 Kd6 e7 Rc5 e8Q Bd8 Bf3 Qg4 Nf8 Ng1 Qd7+ Ke5 Nf5+ Rc3 Bg2 Nf3 Rd6 Nb7 Rad1 Na5 Nd4 Rb3 Rc6 Rd3 Nf5+ Nd4 Bf6+ Kf4 e5 Nf3 e6 Ke4 e7 Kf4 e8N Ke4 Kb1 a2+ Kc1 Kf4 Qf7 Ke4 Qe7+ Kf4 Ned6 a1Q+ Qb1 Qaa4 Qc2 Qe1 Kb1 Qab4 Bf1 Ng1 Bg5+ Kf3 Be2+ Kg2 Ka2 Nf3 Bf1+ Kh2 Bg2 Kg1 Rb6 Nd4 Bb7 Nf3 Rc6
B1Q5/p1bnb1p1/kR1Q4/N3Q1Nr/2b1N1q1/n2q1N1B/PP2q1P1/2R2n1K b - - 0 2 illegal: No possible last move, all moves rejected
2K2R1R/2PBq1rB/2pP4/1n1b1R1p/1NPk1NB1/2B1r3/3r1bQ1/r3bQ1r b - - 0 1 illegal: No possible last move, all moves rejected
BB2N3/Q3N1q1/p1r2QPn/4PR1p/2b1Qb2/2R1r1rk/bR5P/3Q1bbK b - - 0 1 legal: proof: b4 g5 d4 e5 dxe5 b5 a4 Bb7 axb5 Ba6 f4 gxf4 c4 Nc6 c5 Na5 c6 Qc8 b6 Qd8 b5 Bc8 Qc2 Bd6 Qd1 Nb7 cxb7 Bf8 Kf2 Ke7 b8Q Ke6 e4 f5 g4 c5 Kg2 d5 g5 h5 g6 f3+ Kg3 f2 Kg2 f4 b7 a6 b6 c4 Nh3 c3 Bb5 c2 Na3 d4 Qa7 d3 b8R d2 b7 Nh6 Nc4 Qe7 Ra5 Qg7 Bc6 Bc5 Nd6 Re8 Qb6 Re7 Ne8 f1R Rg1 f3+ Kh1 f2 Ra3 Re1 Rc3 f1B Rg5 Bg1 Rf5 Re3 Ba3 c1B Bd6 Rd7 Bc7 Rdd3 Nf4+ Ke7 Nd5+ Ke6 Ne7 Rg3 Qf3 d1B Qd4 Bc2 Qd1 Bf4 Qb6 Bb3 Bd5+ Kd7 Qf6 Ba2 Bd6 Rde3 e6+ Kd8 e5 Ra7 Ra8 Bac4 b8Q Rc7 Qa7 Rc6 Rb8 Ba2 Rb2 Bb7 Ng8+ Kc8 e7 Kd7 Bb8 Bac4 Qg5 Ba2 Be4+ Ke6 Qh4 Rc7 Qg5 Bbd5 Bf3 Bdc4 Ba8 Rc6 Qgg4 Bg5 Qe4 Bf4 Nd6 Qf7 e8Q+ Qe7 Qd8 Qg7 Qdb6 Rc5 Rf7 Rc8 Qd8 Rc6 Ne8 Qf6 Qg2 Kf5 Qe4+ Kg5 Q8d6 Kh4 Ne7 Qg7 Rf5 Kh3 Qf6
B1nrQ1k1/p1N1p3/3r1nn1/3bQKR1/Q1N1P3/P5RN/nn1P1BN1/1r4q1 b - - 0 2 legal: proof: g4 g5 c4 d5 cxd5 c5 h4 f5 b4 Bh6 bxc5 fxg4 Bg2 g3 Bh3 g4 Bf1 Bg5 hxg5 Qd6 Nc3 Qb6 Nb1 Qd8 f4 Kf8 f5 h5 c6 b5 f6 h4 f7 g2 Kf2 g3+ Ke3 b4 Kf4 h3 d6 b3 c7 b2 d7 h2 g6 Nh6 Qa4 Qe8 d8N Nf5 Nh3 g1R Bg2 Bb7 c8Q Bd5 Qc3 Nd6 Na3 b1N Nc4 Nc8 a3 Rh6 Bb2 Nd7 Qe5 Nf6 Bd4 Nc3 Kf5 Rb1 Bf2 Na2 Rg1 h1N e3 Kg7 f8N Kg8 g7 Qc6 Nfe6 Qc5 Be4 g2 Nef4 Qb6 Nde6 Rb8 Rf1 g1N Nc7 Ne2 Ng2 Nf4 Rg1 Ng6 Bf3 Bf7 Bc6 Bd5 e4 Qc5 Ba8 Qe3 Bg3 Nf2 Bh4 Nd1 Bf2 Rc1 Rb1 Nb2 Ra1 Rf1 Rc1 Qd4 Rc3 Rb1 Rg3 Qe3 Rg5 Qg3 Nge3 Qh2 R1g3 Qg1 Ng2 Rh8 Rc3 Rb6 Rcg3 Rd6 Rd3 Kh7 Rdg3 Rhd8 g8Q+ Kh6 Qge6 Kh7 Qed7 Kg8 Qe8+
2N3R1/1nK3PQ/b4QP1/n1n1p3/1b1rB3/q1Bkq1Np/1nn2B1P/B2N3R b - - 0 1 legal: proof: e4 c5 f4 d5 a4 a5 d4 b5 axb5 g5 fxg5 Ra6 Qg4 Rd6 Qf3 cxd4 Qd1 d3 Kd2 d4 Ke1 Rd5 exd5 Bh6 Nc3 Bg7 Nb1 Bf8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kc4 b4 f5 g4 h5 b6 h4 d6 h3 d7 a4 b7 a3 g6 e6 g7 f4 b5 f3 g5 f2 g6 a2 b6 Rh4 Qh5 Na6 b8B Nh6 b7 Nc5 Bb2 Qe7 d8Q Nf5 Qh7 Nd6 Ne2 d2 Bg2 d1Q Nbc3 f1N Be4 d3 Ng3 d2 Ba7 Qe2 b8B Ndb7 Nd1 Ne3 Bc3 Qe1 Rb1 a1N Rb6 Nab3 Bd6 Qe8 Qf6 Qe7 Ba1 N3a5 c3 Na6 Bb4 Nc2 Rd6 Qe3 Rd8 Nac5 Bb6 Kb3 c4 Rf4 Bbc3 Rh4 Nf2 d1N Re8 Nb2 Nd1 Nd8 Ba7 Ba6 Bb6 Ndb7 Rc8 Nca4 c5 Kc4 c6 Qa3 c7 Bb4 Rg8 Nac5 c8N Qg1 Bf3 Rd4 Ba7 Kd3 Bd5 Nd8 Kd6 e5 Kc7 Ndb7 Be4+ Kc4 Rd8 Rd5 Rd6 Nca4 Bad4 Nac5 Be3 Rd4 Rd8 Qe1 Bf2 Qe3 Bg2 Kd3 Rg8 Qg5 Bf3 Qe3 Be4+
R1b1R1B1/1R2K3/N3Pp2/QQBrp1PR/4P1k1/q1b2nqq/2n3B1/3qN2q b - - 0 1 legal: proof: f4 c5 h4 a5 d4 cxd4 a4 b5 axb5 e5 f5 g5 hxg5 Ra7 Nd2 Ra6 Nb1 Re6 fxe6 Bg7 Bf4 Bh6 Bc1 Bf8 Kf2 Ke7 Kf3 h5 Ke4 d5+ Kf5 h4 c4 d3 e4 d4 b4 a4 g4 a3 b6 h3 g6 d2 g5 h2 b5 d3 b7 a2 b6 Nc6 b8Q Nb4 g7 Nf6 g8B Ng4 c5 Nc2 Qe1 d1Q b7 d2 c6 Qd3 c7 Qh3 Na3 f6 Nf3 Kd6 Bg2 Kc5 Kg6 Be7 Rb1 a1Q Nb5 Qa3 Kf7 Qe2 Bb2 d1Q Qa5 Qf2 Ne1 Qfg3 Bd4+ Kc4 Rb2 Bb4 Bc5 Bc3 Ke7 Rh7+ Kf8 Rf7+ Ke8 Rf8+ Ke7 Rd8 Rb1 Rd5 Rb2 Bd7 Qe8 Bc8 b8R Qdd3 Ra8 Qd1 Nf3 Kd3 Ne1+ Ke2 Qd7 Ba6 c8R Bb7 Re8 Bc8 Nd4+ Kf2 Qdb5 Ke3 Nc6+ Kf4 Rg1 h1Q Nb8 Nh2 Na6 Nf3 Rb4 Q1h2 Rh1 Qg1 Rh2 Qh1 Rb3 Qf5 Rh5 Qfh3 Qe2 Kg4 Rb7 Kf4 Qd3 Kg4 Qdb5
1k1b3q/P1p1r3/K2p3N/1RQPRB1r/3rQ3/2rn4/P1N2Bb1/B2rq1BN b - - 0 1 illegal: No possible last move, all moves rejected
K2kq2r/1B2b3/5Q1r/1rNp1N1p/2rPB1R1/3rRP2/2Qq1QNP/2n1nQ2 b - - 1 2 legal: proof: c4 b5 a4 f5 axb5 f4 b4 f3 b6 Kf7 b5 Na6 b7 Ke8 b6 Nc5 exf3 Na6 f4 Nb8 f5 Nh6 Be2 Ng8 Bd3 Nc6 Bf1 Nb8 f3 g5 Ke2 g4 Bb2 d6 Bd4 g3 Bc5 Bd7 Bf2 Bb5 cxb5 gxf2 Kd3 e5 Ke4 a5 Kd5 c5 g4 h5 d4 a4 f6 a3 g5 a2 g6 c4 f7+ Ke7 g7 e4 Na3 e3 Qc2 e2 Nh3 e1Q Rg1 c3 Nf4 Ra4 Ng2 Ra5 Nc4 Kd7 Bd3 f1R Be4 Ra7 Nce3 Na6 b8Q Nc5 b7 Nd3 b6 Qd2 Re1 a1R Nf5 Rb1 Re3 Be7 f8Q Rfd1 Qf6 Nh6 g8B Ra6 Qc8+ Ke8 Kc6 Nc1 b8N Ng4 Kb7 Ne5 Qc4 Ned3 Bgd5 Rb5 Nd7 Ne1 Nc5 Qd7+ Kb8 Kd8 b7 Qe8 Qf1 Rab6 Ka8 Rc6 Be6 d5 Bc8 Rd6 b8Q Rc6 Qb2 c2 Qg3 Re6 Bb7 Rd6 Qfh4 Rdh6 Qgg5 Ncd3 Qgg3 c1R Qf6 Rc4 Qc2 Nc1 Qgh4 Qe2 Qhf2 Rd3 Nf4 Qd1 Rg4 Qd2 Ng2
5QB1/pRB1q1pK/2bN2r1/1NB3P1/PnQ2P2/Bn1N2Rk/1n4r1/2n1q1n1 b - - 1 2 legal: proof: g4 c5 e4 d5 b4 e6 bxc5 Be7 h4 f5 gxf5 Bg5 hxg5 dxe4 Ke2 Kd7 Ke3 b5 Kf4 h5 a4 h4 c4 e5+ Kg4 e3 d4 h3 f4 h2 d5 e2 f6 e1Q Kf5 e4 Kg6 b4 d6 Ke6 d7 b3 c6 b2 f7 e3 f8B e2 c5 Bb7 c7 Nh6 c8Q Ng4 c6 Qe7 c7 Na6 Qe8 Rc8 d8B Nb4 Qb5 Bc6 Nh3 Nf2 Nc3 b1N Rg1 h1N Rg4 Nd2 Rb1 Ng3 Ba3 Nfd3 Nf2 Nb2 Nd3 Rh2 Qa6 Rf2 Kh7 Kf5 Qc4 Rg2 Nb5 Nb3 Qdc1 Rb8 c8N Rb6 Bc7 Ba8 Nf2 Rg6 Nd3 Bc6 Q1c2 Qd2 Qg8 e1N Qcc4 Nf3 Be2 Qe1 Qh8 Qd7 Bc5 Ng1 Qf8+ Qf7 Bf3 N3e2 Bd5 Qf6 Bg8 Nec1 Qc2 Ke4 Qc4+ Kf3 Ncd6 Qfe7 Rh4 Kg3 Rg4+ Kh2 Qc3 Nd1 Rg3 Nd2 Qc4 Nba2 Rg4 Kh3 Rb3 Nb2 Nd4 Nge2 Rb8 Ng1 N4b5 Ndb3 Rb7 Nb4 Rg3+
Rr1r2nN/3RpN1n/4NbB1/P5Q1/4rqrP/2B1Pp1Q/2Q1QK2/q3r2k b - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 h5 b4 axb4 f3 g5 gxh5 g4 Ba3 g3 Bc1 Bg4 fxg4 Qd7 Qc2 Qc8 Qd1 Qd8 h4 Kd7 d4 Kd6 a4 b5 e3 c5 h6 f5 g5 g2 g6 b3 g7 c4 h7 b4 Bd3 c3 Bd2 b2 Qe2 b3 Nf3 g1R+ Kf2 f4 Ne5 f3 Bg6 c2 Na3 c1Q Bc3 b1R Nc2 Rg4 Rd1 b2 Nf7+ Kd7 d6 Ke6 d7 Qc7 d8Q Qf4 Qa5 Nd7 Rd2 Rd8 Qg5 Ndf6 Rd3 Qh1 Ra3 Re1 d5+ Kd7 d6 Ke6 d7 b1R Rd4 Rb4 Rd2 Rdb8 d8Q Re4 Qdd3 Rd8 Nb4 Rb8 Qc2 Rd8 Rd7 Rb8 Qh6 Rd8 Na6 Rb8 Bh5 Kf5 Nc7 Rg5 Rd3 Reg1 Bg6+ Kg4 Bh5+ Kh3 Ne8 Kh2 Nfd6 Rd1 Qg6 Nh6 g8Q Rb3 Nc7 Bg7 Ne6 Rb8 Qf5 Rdb1 Qg4 Qd1 Qg3+ Kh1 Ra2 Rg4 Rd2 Bf8 Qg5 Bg7 Nf7 Rhd8 h8N Nh7 Bg6 Bf6 Rd7 Ng8 a5 R8b7 Rb2 Rc1 Rb6 Rbb8 Ra6 Ra1 Ra8 Qd4 Bb4 Re1 Bd2 Qb2 Bc3 Qa1 Qh3+
B3N3/Kb1kB1R1/1Qq3Pp/Pp1BqNBP/n2b1r1r/1b3R2/1Qr5/4r1N1 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 Bd7 d6 Ba4 b4 axb4 e4 Kd7 d4 Ke6 e5 Kf5 e6 Bd7 d5 Kg6 Qb3 Bc8 Qd1 Nd7 exd7 Ra7 Ke2 Ra3 Ke1 Ra8 Ke2 Kf5 Ke3 e5 h4 b5 a4 c5 g6 f6 g7 b3 a5 e4 Qd2 b2 Nc3 b1B Qb2 c4 Kd4 e3 Kc5 e2 Bg5 e1R Ra3 Ne7 g8B Bb7 Nd1 Qb8 Kb6 c3 d8B c2 d7 c1Q d6 Bc2 Bd5 Bb3 g3 Ra7 Bfg2 Bg7 Bgf3 Qc3 g4+ Ke5 Rh3 f5 Rg3 f4 Ne3 Bf6 Bg2 f3 Nf5 f2 Rf3 f1R h5 h6 Ra4 Rg8 Rc4 Rf8 Rc7 Rf2 Bh1 Rh2 Bg2 Rh4 Bh1 Nc6 Be7 Nd4 d8N Ne6 d7 Nc5 Ne6 Ra8 d8Q Bg7 Nfd4 Rf4 Nf5 Qc8 Bg2 Rb8 Rd7 Na4+ Ka7 Qc6 Nc7 Rc8 Ne8 Bf6 Qb6 Rc7 Be4 Ke6 Bh1 Bd4 Bd5+ Ke5 Bf8 Rc8 Rg7 Rc7 Bfe7 Qe3 Be4 Ke6 Bd5+ Kd7 Bgf6 Re2 g5 Qe5 g6 Re1 Bg2 Qce6 Bg5 Rc2 Ne2 Bc8 Ba8 Bb7 Ng1 Q6d6 Rg3 Qdc5 Bd5 Qc6 Rf3
QR1QRq2/1b1rbB2/7q/4K1PN/5pp1/BR1b2P1/knrr1Q1P/1Q1N1b2 b - - 0 1 illegal: No proof kernel
2r1N3/Rqb2pR1/1QP2P2/1NB2q2/P4Npb/3B2qk/Q1bKR2r/n2N3q b - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 h5 gxh5 Nd7 dxc5 axb4 Be2 d4 Bc4 Nb6 Bf1 Nd5 exd5 Be6 Kd2 Bd7 Ke1 Bc8 c4 Kd7 h4 b5 f4 g5 f5 e5 d6 e4 f6 Ke6 c6 Kf5 d7 g4 c7 d3 h6 b3 h7 b2 c5 e3 h5 b4 h6 e2 c6 b3 Qc2 Ne7 Be3 Nd5 Bc5 Kf4 Kd2 Kg3 Nc3 b1Q Nf3 b2 Rh2 Bd6 Nd4 Nb4 Ndb5 Rb8 Rg2+ Kh3 Nd1 Bg3 Qa4 Nc2 a3 Qe8 d8Q Bf5 c8N Bc7 Ncd6 Qe5 Ne8 Rc8 Qc4 Qg3 Qa2 Bb8 Qb6 Bc7 Qb3 Be4 Ra2 Na1 Qa4 Rg8 h8R Bg6 Rh7 Rh8 Rg7 Bf5 h7 Bg6 Kc3 d2+ Ne3 e1B Bd3 Be4 Re2 Bf2 Qaa7 d1Q Qaa5 Qdg1 Kd2 Qh1 Qa8 Qbf1 Nd1 b1Q Qaa7 Qgg1 Qa8 Bh4 Qa4 Qf5 Qc4 Rf8 h8N Qg3 Ng6 Rh8 Qd5 Nc2 Ra1 Rh5 Qa2 Qb2 Rc1 Na1+ Rc2 Qb3 Rc4 Rh8 Ra4 Rh6 Ra7 Rh5 Bc4 Bc2 a4 Rh8 Nbc3 Qb5 Bd3 Qa6 Nb5 Qb7 Kc3 Rh5 Kd2 Bg5+ Re3 Kg2 Kc3 Rh2 Kd2 Bh4 Re2+ Kh3 Nf4+
4B2N/1rb2b1Q/k2p4/B1q4Q/4R3/BR1Prpr1/5PRP/Kn1BbrqN b - - 0 2 legal: proof: e4 b5 g4 c5 a4 h5 axb5 hxg4 b4 d6 bxc5 Kd7 e5 Qe8 Ne2 Ke6 Ng1 Kd5 e6 Nd7 exd7 Qd8 Bg2+ Ke5 Bf1 Ke6 c4 a5 b6 g5 d3 f5 Kd2 f4 Kc3 g3 Kb2 a4 b7 g4 b8B a3+ Ka2 g2 c6 g3 c5 Kd5 c7 Kc6 Nf3 Kb5 c6 g1Q Bh3 e5 Nbd2 g2 Nf1 e4 Ne5 e3 Bg4 e2 Ng3 e1B Ng6 Rh7 Rb1+ Ka6 Nh8 Be7 Rb3 Nf6 Ka1 a2 Ba3 Ne4 Qf3 Qg8 d8R Qg5 Rg8 Nd2 Bd7 Qb5 Be8 Be6 Qh5 Bd8 c8B+ Rb7 c7 Bf7 Bg4 Qc5 c8Q Nb1 Qd7 Bc7 Bd1 f3 Ba7 Rd8 Bb6 Rc8 Ba5 Rcb8 Kb2 a1R Qdf5 Rd8 Qfh7 Rd7 Rg4 Re7 Rd4 Re3 Rh4 Nd2 Re4 Rc1 Ka2 Nb1 Kb2 Qf1 Ka1 g1R Qg8 Qg2 Qgh7 Rf1 Rg1 Rc4 Re7 Rg4 Re4 Qh1 Rg2 Qg1 Nh1 Rg7 Bc1 Rg3 Ba3
4QqrR/P1KR2R1/RpP3q1/1bqr1nr1/4p3/k3PnB1/1N2N2B/2rBQ3 b - - 0 1 legal: proof: g4 a5 d4 g5 b4 c5 dxc5 axb4 h4 f5 gxf5 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qb6 Qd3 Qa5 Qd1 Qd8 Kd2 e5 Kd3 Ke7 Kc4 h5 Kb5 d5 a4 d4 f4 g3 c4 h4 c6 Kd6 g6 g2 c7 e4 Kb6 h3 g7 b3 a5 h2 c5+ Kd5 f6 Kc4 c6 Kb4 f5 b2 f7 d3 f8R d2 f6 Rh7 a6 Bg4 a7 Nh6 g8R Qd6 c8Q Nf5 f7 Qg6 Rg7 Rh5 Nc3 b1R Rh8 Nd7+ Kc7 b6 Ra6 Rg5 Qe8 Ne5 Qe1 d1R Bf4 Nf3 Bg3 Rbc1 Na4+ Ka3 f8B+ Rd6 Rd7 Bh3 Bg7 Rd5 B7e5 Rb8 Rg8 Bg4 Rgg7 Bh5 Nh3 g1Q Nf4 Qc5 e3 Rd8 Ne2 Ra8 Qf7 Rg8 Qe8 Qf8 Bh3 Qc5 Bg4 Qf8 Rf1 h1Q Bh2 Qg1 Beg3 Qg2 Rh1 Qf2 Ng1 Qc2 Ne2 Qcc5 Nf4 Nd2 Bd1 Nf3 Ne2 Bg4 Bf4 Bh5 Bhg3 Bg4 Rh8 Bh3 Bh2 Bg2 Bfg3 Bf1 Nf4 Bc4 Ne2 Bb5 Nb2+
4bN1n/r4Pq1/1Bp1Bk2/1QP1RB2/1p4Nr/2Bq3P/rR4QK/nrq1R3 b - - 0 1 legal: proof: e4 h5 d4 a5 b4 axb4 g4 f5 exf5 c6 gxh5 e6 d5 Bc5 d6 Be3 Ne2 Bb6 Ng1 Bc7 dxc7 Kf7 Ne2 Kf8 Ng1 Ke8 a4 Ke7 c4 b5 f4 g5 Kf2 d5 Kg3 b3 f6+ Kf7 f5 e5 h6 b4 h7 b2 a5 d4 a6 d3 h3 e4 a7 e3 Qh5+ Kf8 f7 Kg7 f8R e2 Kh2 e1Q Nf3 d2 Nc3 d1R Ra5 b1R Ne4 g4 Nf6 Ne7 Bd3 Ba6 c8B Qd5 Ne5 Nd7 Ng6 Nc5 Be3 Nb3 Be6 Bc8 Bb6 Bd7 Qg5 Qd4 Re5 Na1 c5 Be8 Be4 Qec3 Re1 Qc1 Qd2 Qd6 Qg2 Rd2 Bd3 Ra2 Be4 Rd8 a8Q Rd7 Qa5 Qd3 Qb5 Rda7 Rf7+ Kh6 Rg7 Kg5 Nf8+ Ng6 Rd7 Qde3 Rd2 Qd3 Rb2 g3+ Kg1 Qf4 Ng4 Qc1 Qf2 g2 Kh2 Rg8 Qf3 Nh8 Qf1 Rg6 Qg1 Rh6 f6+ Kh4 B4f5 Kg5 f7 Rh4 Qh1 Qdd2 Kg3 g1Q+ Qg2 Qgd4 Kh2 Q2d3 Rd1 Ng6 h8B Q4c3 Bg7 Nh8 Ree2 Qf6 Rde1 Qh6 Bc3 Qh7 Re5 Qg7 Nh6+ Kf6 Ng4+
5qR1/2B3P1/1rrpR3/R1pq1B2/QbPk1Qq1/4r1N1/5PRn/K1Nn2Br b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 Kd2 Ke7 Kc3 Ke6 e4 a5 b4 c5 Kb2 h5 c4 a4 g5 h4 b6 h3 b7 h2 g6 Ne7 g7 Ra6 b5 Rh3 b6 Nf5 Ne2 g1R Bf4 g2 Nbc3 Ne3 Na2 Be7 Ng3 Qf8 Nc1 Bg5 Bd3 Nc6 b8Q Nd4 b7 a3+ Kb1 Bd8 Qa4 a2+ Kb2 Rf1 Rg1 h1Q Qc7 Bf6 b8B Nf3 Bc2 Nh2 Qd6+ Kf7 Bc7 Rc6 Bd3 Bd8 e6+ Kf6 Bb1 Re1 Qd2 d6 e7 Rh5 e8R Re5 Bc2 Re7 e5+ Ke6 Rb1 Nd1+ Ka1 Re3 Rb5 Rb3 Ra5 Rbb6 Re1 g1Q Bf5+ Kf7 e6+ Kf6 Qe3 Qd5 Qe4 Qg2 Rg1 Qh3 Rg2 Qh4 Qf3 Qg4 Bg5+ Ke5 Bh4 Qh8 Rg8 Kd4 Bg5 Re8 Bf4 Bf6 e7 Bg5 Ne4 Bh6 Bg3 Bd2 Bf4 Bb4 Ng3 Ra8 e8R Rc8 Re6 Re8 Rg6 Re1 Re6 Re3 Rc8 Qf8 Rb8 Qf6 Rg8 Qf8 Nd3 Nc3 Nh1 Qg6 Kb2 Nf1 Bh2 a1R Ng3 Rd1 Nc1 Qg4 Ka1 Rde1 Be4 Nd1 Qf4 Nd2 Qh6 Nf3 Bf5 Rh1 Bg1 Nh2 Qf4+
2n1qr1k/1Pb1qbB1/1q6/3Q1RrB/3b1Q1P/NNpp1b1K/2PN4/1R4NQ b - - 0 1 legal: proof: d4 h5 a4 e5 dxe5 b5 axb5 Bc5 f4 Ke7 g4 hxg4 e4 Be3 e6 Kf6 f5 Nc6 e5+ Kg5 f6 Kg6 Ke2 Bc5 Kd2 Bf8 Ke1 Nce7 fxe7 Rh4 Qd5 Rh7 Qd1 Rh8 Kf2 Kh7 Kg2 g5 e8N c5 b4 f5 h4 d5 e7 a5 b6 c4 b5 g3 e6 f4 b7 d4 b8N a4 b6 g4 b7 c3 Bc4 d3 Nh3 a3 Re1 f3+ Kf1 g2+ Kf2 g1B+ Kg3 f2 Nd2 f1B Nd7 a2 Rb1 a1Q Nc7 Qa3 e8Q Ne7 Nb5 Ra5 Re5 Be2 Rf5 Bd4 Qh1 Bf3 Ng1 Rg8 Nc5 Kh8 Kh2 g3+ Kh3 g2 Qc6 Qe8 Qd5 Bh6 Ba2 Rf8 Ncb3 Qd6 Na3 Bf4 Rg5 Bd7 Rf5 Nc8 e7 Bb5 Rf6 Bc4 Rf5 Qb5 e8Q Qe7 Qec6 Bc7 Qcd6 Qbe8 Qf4 Ra6 Na1 Rg6 Bb3 Rg4 Ba4 Rg5 Nab3 Qg6 Be8 Qg8 Ne2 g1Q Bh5 Qge3 Ng1 Qf2 Qde4 Bf7 Qd5 Qg6 Qc4 Qb6 Qd5 Qfe3 Nf1 Q7e6 Qfh2 Rg6 Bd2 Qe1 Bh6 Qe8 Nfd2 Rg5 Qf4 Q1e7 Bg7+
2R2nn1/Q6n/3N1PpB/Bbr1pP2/1B1N2P1/Q1q1q1rk/1R4B1/KNn3q1 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Bg7 h6 Ng8 hxg7 Qb6 Bg5 Qc7 Bc1 Qd8 Kd2 Kf7 c4 Kf6 Kc2 e5 f4 h5 g4 d5 b4 a5 Kb2 h4 b6 a4 c5 a3+ Ka2 d3 c6 h3 b7 d2 c7 h2 b5 d4 b6 d3 Qe2 d1Q Bd2 Qe1 Ba5 d2 Bg2 d1Q Qd3 Rh3 Bb4 Qe3 Nf3 Bd7 c8N Qdg1 Nd6 Qc7 Nd4 Bb5 Qc3 Nd7 b8B Rf3 b7 Ra5 Ba7 Rg3 b8B Nf8 Qb3 Qcc3 Bc7 Qgc1 Rf1 h1N Rf2 Qg1 Rb2 Nf2 Bac5 Nh3 B7b6 Ra7 B6a5 Rc7 Ba7 Rc5 B7b6 Ne7 g8Q Ng5 Qh7 Ng8 Qa7 Ngh7 Nb7 Kg7 f6+ Kh6 f5 Kg5 Nd6 Kh4 Nd2 Rh3 Rc1 Rg3 Ka1 a2 Qa3 Qee1 Bf3 Kh3 Nb1 Qee3 Bg2+ Kh4 Qd7 Rc4 Ne4 Qb3 B6c5 Ne6 Qa7 Rc2 Bf3 Kh3 Bf8 Qbd3 Bg7 Nef8 Bh6 Rc8 Rc6 Qc3 Nd6 Rc7 Rb6 Rc8 Rb8 Rc5 Rc8 Qcc1 Rg2 Qce1 Kb2 a1N Ka2 Nb3 Rb2 Nc1+ Ka1 Q1c3 Bg2+
b2Q2rB/qrbbK3/3pp3/4B2N/b1NPPR1B/qP2Q3/1k1B1Q2/2R1n2q b - - 0 2 legal: proof: d4 c5 a4 f5 g4 b5 axb5 c4 gxf5 Na6 Bg2 Nb8 h3 g5 Bf3 Nc6 Be4 Ne5 Bd3 cxd3 h4 g4 Kf1 Nf7 Ke1 Ng5 hxg5 Qc7 Nc3 Qb6 Nb1 Qd8 Kd2 Kf7 Ke3 a5 Ke4 h5 Ke5 a4 f4 a3 c4 g3 e4 h4 b6 a2 g6+ Ke8 b7 h3 b8B d2 c5 h2 g7 g2 f6 Rh7 c6 Nh6 g8Q Nf5 c7 Bb7 c8Q Nh4 Qdc2 d1B Nh3 g1Q f5 Ng2 Nf4 Ne1 Qf2 Ba4 Qc3 Qb6 b3 Qa7 Nd2 e6 Rb1 a1Q Nc4 Qa3 Bd2 Qg2 Rf1 h1B f7+ Kd8 Qg7 Bd6+ Kf6 Bc7 f8B Qh3 Rd1 Bf3 Qh8 Qh1 Qce3 Bh5 Bg7+ Be8 Rc1 Kc8 Nh5 d6 Ke7 Bbc6 f6 Kb7 f7 Ka6 Be5 Bed7 Qd8 Kb5 Bh8 Rh6 f8B Rh7+ Qf7 Rg7 Rf4 Rg8 Bfg7 Bb7 Rc3 Kb4 Qf6 Bb6 Bc7 Rb8 Qh4 Ba8 Be5 Rb7 Qhf2 Ba5 Qb8 Bb6 Bd8 Bc7 Na5 Qa1 Rc1+ Ka3 Nc4+ Ka2 Kf7 Qb2 Bh4 Qa3 Ke7 Rg2 Qd8 Rg8 Na5 Kb2 Nc4+
k1n1QR1r/B2p2q1/2RNQN1R/1q1P4/Np3q2/n4RP1/2Pnr3/nBbK4 b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 bxc5 gxh4 a4 b4 Ba3 Ba6 Bc1 Bb5 axb5 Qc8 Rh2 Qc7 Rh1 Qd8 d4 e5 f4 h5 b6 a5 b7 h3 d5 h4 c6 e4 f6 e3 c7 e2 c8R h2 g3 a4 f5 a3 Rc3 h3 Qd4 a2 Qc5 Qa5 f7+ Kd8 f6 Nc6 Nf3 Kc7 Qb6+ Kb8 Ne5 Nge7 Be3 Nc8 Nc4 Qb5 Nd6 Nd4 Rc6 Bh6 f8N Bg5 Bg1 Bc1 f7 Ra3 Nh7 Re3 f8R Re8 Kf2 e1N Bc4 Nef3 Nf6 Nd2 Nc3 Re5 Rb1 a1N Na4 Re3 Be2 Re5 Ke1 Re7 Be3 Re8 Rf1 h1Q Kd1 h2 Bc4 Qe4 Rf3 Qf4 Ba2 h1Q+ Bg1 Qh7 Be3 Ba3 Rc1 Qg7 Bb1 Bb2 Bf2 Re2 Bg1 Nf5 Qe3 Nd4 Qe6 Qb6 Bf2 Nb5 Bg1 Ka7 b8Q+ Ka6 Qh3 Nca7 Qe8 Na3 Qhe6 Nc8 Bc5 Ka7 Be3 Rf2 Ke1 Ka8 Bd4 Qb5 Ba7 Ndc4 Rd1 Bc1 Rd2 Rfh2 Kd1 Rg2 Re2 Nd2 Re5 Rgh2 Rh5 Re2 Rh6
NB3R2/brQb1BP1/3p4/3n1q1b/q1PP1q1Q/NQk3B1/1p1q4/1Rr3BK b - - 0 1 legal: proof: e4 b5 b4 c5 h4 f5 exf5 g5 bxc5 gxh4 a3 Na6 a4 b4 Ba3 Nc7 Bc1 Nb5 axb5 Qc7 Ne2 Qb6 Ng1 Qd8 g4 Kf7 f4 Kf6 Kf2 h5 Kg2 a5 c4 e5 d3 b3 c6 b2 b6 e4 b7 a4 b8B a3 c7 a2 Ne2 e3 Nd4 e2 Be3 e1Q Be2 Qd2 Bg1 Rh7 Ne6 Bc5 Qb3 Ne7 Na3 Nd5 Rb1 a1Q d4 h3+ Kh2 h4 Rf1 Qf8 g5+ Ke7 g6 Kf6 Rf2 Ba7 Bh5 d6 g7 Bd7 c8Q Qad1 Qc7 Qc8 Qa2 Qa4 Qb3 Rh8 Bg6 Re8 Bf7 Re7 Qa5 Qf8 Nc7 Re1 Qc5 Rc1 Qc6 Bc5 Qcb6 Ra7 Na8 Rb7 Qc7 Ba7 Bg6 Ke7 f6+ Ke6 f7 Qc8 Bh5 Kf5 f8B Ke4 Be7 Qf8 f5 Qc8 Qbb6 Kd3 Bf7 Kc3 Bf6 Qf8 Be5 Qc8 f6 Qf8 Bh5 Qf7 Qb5 Qg6 f7 Qf5 Bg3 Qdf4 Rf1 Qd2+ B1f2 Qdf4 Kg1 h2+ Kg2 Qd2 f8Q Qdf4 Rhg1 h1B+ Kh2 h3 Bf7 Be4 Qfd8 Bf3 Qh4 Bh5 Kh1 h2 Qbb6 Rc2 Rb1 Rc1 Re1 Qd2 Bg1 Qdf4 Re8 Qd2 Rf8 Qdf4 Bf2 Qd2 Kg2 h1Q+ Kg3 Qhe4 Kh2 Qeg4 Kh1 Qff4 Bg3 Qgf5 Qb3+
r4qQ1/Nq2N1q1/1b1P2n1/1RppnB2/n1k1PN2/1qP4Q/2R1N1r1/BR5K b - - 0 1 illegal: No proof kernel
r3n1Nq/1Q1Q4/1rB3Pb/BR4rq/Pp1r3p/QK2B1k1/1P2B2R/3Nq1n1 b - - 0 1 illegal: No proof kernel
K2nq2R/4Rp1B/RP6/RPQrnN1n/2rp1P2/q1Qr2b1/5r2/BQ2Nk2 b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 c5 gxh5 d4 Ke2 Be6 Ke1 c4 d3 Bd5 exd5 cxd3 Kd2 Kd7 c4 Kd6 h4 Ke5 f4+ Ke4 b4 e5 h6 a5 h5 g5 h7 g4 h6 g3 d6 a4 d7 g2 c5 a3 c6 a2 b6 Ra5 c7 Ra6 c8Q Ra8 b5 Nc6 Nf3 g1N Bb2 Ra4 Ne1 Nf6 Na3 Rc4 Qb1 Be7 Nac2 Nh5 Ne3 Qe8 d8R Bh4 Nf5 Bg3 Rd7 Nd8 Re7 Rg8 h8R Rg5 h7 Nf3+ Kd1 Rg7 Qc5 Rg5 Qc1 d2 Ke2 d1R Qc3 Rd3 Bh3 Rg6 Rg1 Rd6 Bg4 Ng7 Bh5 Rd5 Bg6 Nh5 Rh1 Qc6 Rh2 Qa8 Rf2 Qa3 Rh2 Ne6 Ra8 Nd8 h8Q Nc6 Ra5 Nd8 Rb1 a1R Bh7 Ra2 Ra6 Nd2 Ba1 Rb2 Qg8 Rc2 Qg6 Nf3+ Kf1 Rg2 Rb4 Rgd2 Rba4 Rb2 R4a5 Ra2 Nh6+ Ke3 Rh4 e4 Rh3 Bf2 Kg2 Ke2 Nf5 e3 Rh4 Ne5 Rh2 Nec6 Rh1 Bg3 Rh4 Kd1+ Kf3 Rf2+ Ke4 Ke2 Rh2 Kf1 Rh3 e2 Rh2 Rd6 Rh4 Re6+ Kd5 Re5+ Kd6 Rd5+ Kc7 Ne5 Kb8 Ng7 Ka8 Nh5 Nc2 e1Q Rh2 Qd1 Ne1 Qf3 Qg4 Qe4 Qd1 Nf3 Qdc1 Qe6 Rh4 Ne5 Qb1 Qd7 Rg4 Qe8 Rg8 Bh4 Rf8 Bg3 Rh8
Nn1q3k/BRp1pb2/7R/1q2qN2/RrPnPr1R/2QB3K/4P1Q1/Qq3n2 b - - 0 2 illegal: No possible last move, all moves rejected
6k1/3qQB1R/N1Q1bPq1/1b1ppq2/2B1P2r/Kn2n1RB/3P2n1/1NB2Rn1 b - - 1 2 legal: proof: c4 b5 b4 f5 g4 a5 gxf5 axb4 Ba3 b3 Bb2 Nc6 Bc1 Nb8 h4 g5 Bg2 g4 Ba3 b4 Bf1 Bh6 Bc1 Bg5 hxg5 Ra6 Na3 Rb6 Nb1 Rb5 cxb5 Kf8 Rh3 Kf7 Rh1 Ke8 a4 Kf7 f4 h5 f6 c5 b6 e5 f5 c4 a5 c3 b7 h4 a6 g3 a7 h3 a8B g2 Qc2 h2 Kd1 b2 Nf3 g1N Nd4 b3 Nc6 Ne7 g6+ Kg8 g7 Ng6 Nb4 Nc6 b8R Nd4 Bh3 Rh4 Bc6 Nf4 Na6 Ng2 e3 d6 Be8 Be6 Rb5 Qd7 f7+ Kh7 f6+ Nf5 g8B+ Kh8 Na3 b1Q f8Q b2 Qe4 Qd3 Qe7 b1Q Qc6 Qe4 Rb3 Qbd3 Bb2 c2+ Kc1 Qg4 Bgf7 Qg6 Nb1 Qe4 Ba3 Qf4 Kb2 c1N Rc3 Nb3 e4 Nfe3 Ka2 Qff5 Bc1 Kh7 Ka3 d5 Rd3 Qg3 Bh5+ Kg8 Be2 Qgg6 Rc3 Nf3 Rf1 h1B Bc4 Ng1 Ra2 Ne1 Rb2 Bf3 Ra2 N1g2 Rb2 Nd4 Rb7 Nb3 Rd3 Be2 Rc7 Nd1 Rg3 Nde3 Qb4 Qd8 Rh7 Qd7 Qe7 Nc5 Bb3 Bb5 Bc4 Nb3 Bf7+
1k1K1R2/5rrP/1p1Q2Q1/3q1Rn1/PBRNr3/NP1qrbb1/4B2p/Q3R2b b - - 0 1 illegal: No proof kernel
qn1KRq2/2n3PB/1pN1rQ1p/1N1Qr1Bq/5Q1Q/1P3q1P/1k2R3/2b1r1B1 b - - 1 2 legal: proof: e4 d5 exd5 a5 f4 g5 fxg5 a4 Nf3 a3 Ng1 Bd7 Qf3 Ba4 Qd1 Bb3 cxb3 axb2 Kf2 Kd7 Kg3 Kd6 Kg4 Ke5 d4+ Ke4 a4 e5 g6 c5 h3 b6 d6 c4 d5 c3 d7 c2 g7 f6 a5 h6 a6 Nc6 a7 Qc7 d8Q Na5 d6 Qf7 d7 Ba3 Bd3+ Kd4 Kf5 e4 g4 e3 g5 e2 g6 e1R Rh2 Qf8 Nc3 b1Q Qd2 Nc6 Re2 Nge7+ Ke6 f5 g8Q f4 g7 f3 Qf7 f2 Qf5 Rb8 a8Q f1Q Bb2 Nd5 Qh4+ Qf4 d8B c1Q Kd7 Qa2 Bg5 Re8 Qf6+ Re5 Qad8 Qe4 Qdf4 Qd1 Qa8 Nc7 Nb5+ Kd5 Qb7 Qf3 Bd4 Bc1 Bh7 Qaa8 Be3 Qh5 Nf3 Qd3 Ra5 Qe4 Nfd4 Qef3 Ra7 Kc5 Bg1 Kb4 Qb8 Re6 Qbd8 Nb8+ Kc8 Re5 Raa2 Re6 Rac2 Rg8 Rc6 Re5 Re6 Rh8 Re8 Rg8 Nc3 Ka3 Qd5 Re6 Kd8 Re5 Bc2 Kb2 Nc6 Qb4 Nb5 Rf8 Qfe6 Rf6 Qe7 Rfe6 Qef6 Qf8 Bh7+
2r1qNn1/4B3/1N1K2Bp/bQ2P1RR/2Bp1qPn/1q5r/Q3QkBP/qn6 b - - 0 1 illegal: No possible last move, all moves rejected
1KBq2B1/3q4/QB1N1RpP/rb1R2q1/1q1rn1Q1/2kNn3/BP1p2P1/4r1N1 b - - 0 1 illegal: Other
3BQ3/3B1n1N/bP1N1ppN/4b1qR/1r1N3q/1P3k2/BK3P1Q/2rq1qRb b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 d5 g4 c5 gxh5 d4 Ke2 Nd7 Ke1 Ndf6 d3 Nd5 exd5 c4 Bg5 cxd3 Bf4 Bb7 Bc1 Bc8 Kd2 Kd7 h4 Kd6 c4 Ke5 b6 Ke4 c5 a5 h6 e5 c6 a4 h7 g6 h5 a3 h6 a2 c7 Ra3 d6 Qf6 d7 Kf4 d8Q e4 Qe8 Bg7 Nc3 Rb3 Rh5 Rb4 Nb5 Qh4 Nf3 Ba6 c8B Be5 Nd6 f6 Bd7 Qg5 b3 Qh4 Ba3 e3+ Kc1 e2 Kb2 e1Q Qc1+ d2 Qc7 d1B Bd3 Qe4 Bb1 d3+ Nd4 d2 Qcb8 Qe3 Qc7 Ne7 Qcb8 Rg8 h8N Bf3 h7 d1Q Nhf7 Nf5 h8N Bh1 Ng5 Nh6 Nh7 Nf7 Qc7 Qeg3 Qcb8 Qgg5 Qc7 Nd8 Nhf7 Qf1 Nh6 Nf7 Qe6 Rc8 Qe8 Bf3 Qb7 Bh1 Qg2 Rc1 Qg1 Rbc4 Bc5 Rb4 Qh2+ Qgg3 Nb7 Qd1 Be7 Qg5 Nd6 Qh4 Qg2 Qgg5 Qh2+ Qhg3 Qh4+ Qdg4 Nb5 Rcc4 Qh3 Q3h4 Nd6 Qg2 Bd3 Rc3 Rg1 Qf1 Bb1 Rc2+ Ka3 a1Q+ Ba2 Qad1 Bd8 Rc8 Kb2 Rc1 Nb7 Ke4 Qh2 Rc3 Ne6 Kf3 Nd6 Rc1+ Nd4+
KB2NrQB/3B1pq1/N7/3N2N1/Pn4Pn/1RR1r1np/2q2PQ1/1kbq1n2 b - - 0 1 legal: proof: c4 g5 e4 d5 cxd5 b6 d4 g4 e5 g3 d6 Bd7 d5 a5 b4 axb4 e6 Bh6 hxg3 Kf8 exd7 Kg7 g4 Kg6 g5 Bf8 Ke2 Kf5 Ke3 e5 a4 h5 g6 c5 g7 c4 g3 e4 Kd4 b3 Bd3 b5 Kc5 b4 Bd2 h4 Be1 h3 Bc3 b2 Ra3 b3 Be5 c3 Nf3 c2 Bb5 c1N Ng5 e3 Qg1 e2 Qg2 e1Q Nc3 Na6+ Kc6 b1N Kb7 Ne7 g8N b2 Nf6 Nd2 Ne8 b1Q Rg1 Rh4 Bh8 Re4 g4+ Kf4 Rh1 Ne2 Rf1 Qa5 d8N Qed1 d7 Bh6 d6 Nb4 Nc6 Ng6 d8Q Nh4 d7 Re3 Nb8 Qbc2 Na6 Ng3 Re1 Ndf1 Qb8+ Qd6 d8B Qe5 Bdf6 Qd8 Rc1 Qdd1 Qd8 Rc8 Bd7 Qed4 Be7 Qg7 Nd5+ Ke5 Bf8 Kd4 Bd6 Kc4 Bb8 Kd4 Raa1 Kd3 Ka8 Kd2 Ndc7 Kc3 Nd5+ Kb3 Ra3+ Kb2 Rc3 Ka2 Ra1+ Kb2 Raa3 Kb1 Qe7 Rd8 Qf8 Rc8 Qg8 Rd8 Nec7 Rf8 Ne8 Re6 Ne4 Bc1 Ng5 Re3 Rab3+
2Q5/n3n2k/rp1KNp2/1PR2P1Q/2R2N2/2bQ1bB1/Brbbb1P1/BBr5 b - - 1 2 legal: proof: d4 g5 h4 c5 hxg5 cxd4 a4 b6 a5 Qc7 a6 Qb7 Bf4 Qc6 Bc1 Qc7 e4 d5 Rh6 d3 Rd6 d4 Rg6 Qb7 axb7 a5 Rh6 a4 Rh3 Ra5 Rh1 Rd5 exd5 Kd7 Qf3 Kd8 Qd1 Ke8 Kd2 e5 b4 h5 c4 a3 f4 e4 d6 a2 g6 f6 d7+ Ke7 g7 Kf7 d8Q Kg6 b5 h4 f5+ Kh7 c5 h3 c6 h2 c7 Nc6 b8B Nge7 Nf3 Bb7 c8Q Na7 Nc3 Ba8 Rb1 a1R Bb2 Ra2 Rc1 Bd5 Rg1 h1R Ne2 Rg8 Bg3 e3+ Ke1 Ra6 Nf4 e2 Kf2 d2 Rc4 d3 Ke3 e1B Nd4 Bf3 Ba1 Ra2 Qe2 d1B Nde6 d2 Qdd3 Bc2 Kd4 d1B Rc5 Bd2 Kc4 Rh8 g8B+ Kh6 Bf7 Rb2 Kd4 Kh7 Rc4 Bd5 Qh5+ Bh6 Be2 Bf3 Re1 Ba5 Bf1 Re8 Re5 Bde2 Rec5 Rh8 Qb7 Ra8 Qa6 Bg4 Qc8 Bc3+ Ke4 Ng6 Kd5 Ne7+ Kd6 Bef3 Be2 Rc1 Bd1 Be2 Be1 Bgf3 Bg3 Bb1 Bb3 Bc2 Ba2 Nac6 Re4 Ra6 Bb1 Na7 Ng7 Re1 Bfa2 Rh1 Nge6 Rc1 Qhe8 Bg5 Rec4 Bh6 Nh5 Be3 Nhf4 Bed2 Qh5+
4Q1b1/B2Nq3/3k2pb/6N1/1bbQ1KPn/QQr1P1pr/1P3bR1/Rb2RB2 b - - 0 1 illegal: No proof kernel
1n2Bb1b/2R5/2B2P1b/2p3Pq/2b1b1Q1/1NPB1krb/nRQp3K/N3B1R1 b - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 b4 b5 bxa5 f5 h4 Ra6 Qd2 Rg6 Qd6 fxg4 Qd1 g3 Bh3 g4 Bf1 Rg5 hxg5 Be7 Qd4 Bd6 Qd1 Bf8 f4 Kf7 e4 Ke6 a4 c5 c3 h5 a6 d5 a7 g2 Kf2 h4 a8B d4 a5 g3+ Kf3 d3 a6 b4 a7 b3 Bd2 h3 Bc6 h2 a8R b2 Qc2 Rh3 Be1 Ne7 R1a2 Qe8 Ne2 g1B Kg2 Qh5 R8a7 Nd5 Nd2 b1B Rc7 Nb4 Rb2 Bd4 Nc1 Ba2 Be2 Bd7 Bf1 Bc4 f5+ Ke7 e6 Kd6 e7 Ke5 e8Q+ Kf4 e5 Na2 e6 Bdg7 e7 Bh6 Be2 Ke3 Rf1 h1B+ Kg1 g2 Qc8 Rg3 e8B Qf3 Kh2 Kf4 Ndb3 d2 Na1 Ke3 Bd3 Qh5+ Kg1 Bde6 Rf2 Bd7 Re2+ Kf4 Ncb3 Kg4 Kf2 g1B+ Kf1 Bhd5 Rg2 Bd4 Rg1 Bh8 f6 Be4 Kf2 Kf4 Kf1 Rf3+ Kg2 Bh3+ Kh1 Rg3+ Kh2 Kf3 Qg4+
N1qR3r/pn3n2/n1B2b1N/3n2Q1/1Qp1QnPK/1P2R2B/P3Q3/B2k2nb b - - 0 1 legal: proof: h4 e5 c4 b5 g4 bxc4 d4 g5 dxe5 Bc5 f4 Na6 h5 Bf8 fxg5 Rb8 Nh3 Rb6 Ng1 Rg6 hxg6 Qe7 Qd6 Qf6 Qd1 Qd8 Kf2 Ke7 Kg3 Ke6 e4 f5 b3 d5 g7 c5 g6 h5 Qe2 c3 Bd2 c2 Qb5 c1N Qe2 c4 Qe1 d4 Ba5 f4+ Kh3 f3 Bb4 h4 Bc3 f2 Qe2 d3 Nf3 d2 Na3 d1N Nb5 Nh6 g8Q+ Nf7 g7 Be7 Qf8 Nb2 g8Q Bb7 Qg5 Ncd3 Rd1 Bf6 Qb4 Na4 Ba1 Qc8 Rh2 N4c5 Nc7+ Ke7 e6 Kd6 Bg2 f1N e7 Ne3 e8B Nd5 Na8 Ke6 e5 Bc6 Rhh1 Nb7 Rhe1 N3f4+ Kh2 h3 Kg3 h2 Nh4 Ng6 Bh3 Ngf4 Nf5 h1N+ Kf3 Nf2 Kg3 Nbd6 Nh6 Nb7 Bg2 N2h3 Kh4 Ng1 Bh3 Ne3 Rd4 Bh1 Rd8 Ned5 Ba4 Ne3 Bd7+ Kd5 e6+ Ke4 e7 Bf3 Qh2 Kd3 e8Q Ned5 Bc6 Bg2 Re5 Kc2 Re3 Kd1 Qe4 Bh1 Qe2+
5r2/RbQ4B/1BR4p/1K1P2nP/8/R1rQ2bb/1pNn1PnN/br1kNR2 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 Nc6 g4 Nb8 b4 Qd6 g5 Qf6 gxf6 axb4 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 d4+ Ke4 a4 b5+ Kc5 g5 h4 e5+ d6 h6 h5 g4 f7 g3 a5 g2 a6 b3 a7 b2 f6 b4 d5 b3 Na3 b1B Be2 Na6+ Kc6 Nc5 d7 Bb7+ Kb5 Bd6 f8Q Rc8 d8N Ne6 a8R c5 f7 c4 Nh3 g1R Ka4 c3 Ba6 c2 Be2 Ng5 Ne6 Rc3 Kb5 Nf6 Qe7 Rf8 Be3 c1B Nd4 Bb2 Nf4 Re1 Ra2 Ba1 Nd3 b2 Ra7 Bc2 Qd2 Rb1 Qc7 Bd1 Bf1 Bg4 Ne1 Be6 Ndf3 Bh3 Qc8 Bc7 Bb6 Bb8 Qd3+ Kf4 Bd8 e4 Nac2 e3 Bb6 e2 R2a3 Nfe4 Nh2 Nd2 Bg2 Bd6 Be4 Be5 Bh7 Bb8 Nef3 e1N Rf1 Ng2 Nfe1 Bd6 Qc7 Be5 Nhf3 Kg4 Qb8 Bg3 Qc7 Rg8 f8R Rh8 Rd8 Rg8 Qe2 Rf8 Rd6 Kf4 Qd1 Kg4 Nh2+ Kf4 Rg6+ Ke4 Nef3 Kd3 Rc6+ Ne4 Bg8 Ng5 Qc1 Ke2 Nfe1 Nc4 Qe3+ Kd1 Qd3+ Nd2 Bh7
1RR1K3/Rrp3b1/2QQPP2/Nnr2Np1/1bP2n2/5bB1/1nQRr1Bn/5k2 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 e5 axb5 f6 dxe5 Qe7 h4 Qf7 h5 Qg6 hxg6 f5 Qd2 fxg4 Qd4 Ba6 Qd1 Bc8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 b4 h5 c4 g3 f4 g2 g7 a4 b6 a3 b7 d6 b5 h4 b6 h3 Nd2 h2 Ngf3 g1N Nh4 a2 Nf5 Nh6 g8R Nh3 Qc2 Ra5 Nb3 Nc6 b8R Rc5 b7 Ng4 Na5 Nd4 Bg2 Nb5 Rd1 h1R Rd2 Re1 Bh1 Nh2 e3 Be7 Bb2 Bd7 Rgc8 Re2 Ba3 Be8 Bb4 Bh5 Bc3 Kf7 e6+ Kg6 Be5 Bf8 e7 d5+ Kd3 d4 Ke4 d3 e8Q+ Kh7 Qd7+ Kg6 Qd4 Bg4 Qd6+ Kh5 Qc6 Bg7 Bd6 Bc3 Be5 Bb4 Qd6 Rc6 Kd5 Rc5+ Ke6 Bf3 Kd7 Kg4 e4 Rh6 Ke8 Rg6 Ne7 Kg3 f5+ Kf2 Bf4 Rh6 e5 Re6 Qc6 Rd6 e6 Rdd5 Rb1 a1B Rb2 Rd6 Ra2 Kf1 Bg3 Bg7 f6 Nf4 Nf5 Rdd5 Ra8 Rd6 b8Q Rdd5 Qbb7 Rd6 Qd7 Rb6 Qbc6 Rb7 Rab8 Rf2 Re2 d2 Qdd6 d1N Rd2 Nb2 Nb3 Nbd3 Ra7 Re2 Na5 Nb2 Bg2+
3Qb1Bn/2p1bP2/1bB4q/1r1QR2N/1PN2R2/K2b1pB1/1R2rPBr/5k1r b - - 0 1 illegal: No possible last move, all moves rejected
rN2r1R1/2NnQr2/2B2n2/1bpP1kP1/qnPQ1pn1/r1Q1R1R1/3BK3/Q7 b - - 0 1 legal: proof: e4 d5 f4 dxe4 a4 g5 fxg5 b5 axb5 Bh6 Ra5 Bg7 Ra1 Bf8 h4 e6 g4 Bd6 h5 Ke7 g6 Ke8 h6 Bf8 g5 Bg7 hxg7 Qd3 Nf3 Qd7 Ng1 Qd8 d4 Ke7 c4 f5 b4 h5 b6 a5 b5 c5 b7 e5 b6 Ke6 Na3 a4 Bd2 f4 d5+ Kf5 Nf3 h4 Kf2 e3+ Ke2 h3 Rh2 e4 Nb5 a3 Rg2 a2 Rg3 h2 Ne5 h1N Nd7 Nf2 Bh3+ Ng4 Nc7 Nf6 g8R Rh7 g7 Qe8 Qc1 Ra3 Qc3 Ra8 Rf1 a1R Re1 R1a3 Qd4 Na6 b8Q Nb4 Qc3 Ba6 Qd8 Bb5 Nb8 Qc6 b7 Qa6 Re8 Qa4 g8Q Rf7 Qg7 Qa6 Rg8 Qa4 Kf1 e2+ Kg1 e3 Qe7 Ne8 Qgd4 Nf6 Kg2 Nh7 Kf3 Nf6 Ra1 e1N+ Ke2 Nf3 Re1 Ra2 Nd7 Ra1 b8Q Ra3 Qa7 Ne5 Nb8 Ned7 Rf1 Ra1 Rff3 Ra2 Qa5 Ra3 Qa1 Na2 Q5c3 Nb4 Ke1 e2 Rd3 Nf8 Rde3 N8d7 Qf8 Ne5 Rh8 Kg6 Re4 Nf2 Bd7 N2g4 Bc6 Kf5 Rg8 Ned7 Re6 Nh6 Kf2 e1R Re7 Re6 Kf3 Nhg4 Re8 Rd6 Re3 Re6 Ke2 Re8 Qe7
6rR/3N3p/Qp1R2PP/3rbBbr/3RnbBb/RP3r1q/4kBQ1/4N1K1 b - - 1 2 legal: proof: c4 g5 e4 d5 f4 dxc4 fxg5 b6 a4 Qd7 d4 Ba6 a5 Kd8 d5 Bc8 a6 Bb7 axb7 Ke8 d6 Na6 Ra4 Nb4 Ra1 Nd5 exd5 Qd8 Kf2 Kd7 b8Q e5 h4 c5 g4 a5 g6 f5 g5 f4 b3 e4 h5 c3 g7 c2 h6 e3+ Kg2 a4 g6 c4 Rh4 e2 Kf2 e1B+ Kg2 f3+ Kh2 c3 Rh5 a3 Qd2 f2 Nf3 a2 Bd3 f1R Rh4 Qc8 Na3 Be7 Nc4 Bg5 Qg2 Ra5 Rd4 Beh4 Qa8 Nf6 g8B Ne4 Ne1 Rf3 Be3 c1R Bf2 c2 Qa6 Rd1 Kg1 c1B Bb1 Bcf4 Be6+ Kd8 d7 Kc7 d8R Rg8 d6+ Kc6 d7 Kc5 Re8 Kb4 d8R Kc3 R4d6 Rdd5 Ne5 Kd2 Bg4 Rb5 Rf8 Ke2 Nd7 Qc3 Ra8 Qe3 Rfd8 Qd3 Bc2 Qe3 Rd1 a1B Ra7 Bae5 Rd4 Rg7 Rh8 Rg8 Qb7 Qd3 Ra3 Qc3 Qa6 Qc8 Nf8 Qe6 Nd7 Qf5 Bh5 Qh3 Bg4 Nd2 Qh1 Bef6 Qb7 Rdc5 Bcf5 Ne4 Rc4 Bd4 Rca4 Be7 Be6 Rh5 Qa6 Bde5 Bef5 Beg5 Rc4 Rc5 Qg2 Rd5 Rd4+
b2Q2B1/PNN2P2/4rbbB/3K4/2nQ1p1n/2RQ1P2/RpNbrn1k/1n5N b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 c4 d5 cxd5 h5 gxh5 f4 Bd3 Qd7 Bf1 Qf5 exf5 Ra6 Bb2 Ra4 Bc1 Ra8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 a4 Kh4 f3 e5+ Kc4 c5 d4 g5 h6 b5+ Kd3 b3 Ke4 g4 h7 g3 a5 b4 f6 b2 d6 g2 d7 c4 d8N b3 h3 Kg3 d5 c3 h4 c2 d6 Ne7 d7 Ng6 a6 Be7 a7 Nc6 h5 Na5 h6 Nh4 Ra2 Nc4 Ne6 Re8 Na3 b1B Kd5 e4 h8Q e3 d8N e2 h7 e1B Nc7 Bd2 Nh3 g1N Nf2 Ne2 Bb2 c1N Nc2 Nd3 Nb7 Bf5 f7 Bg6 Bg7 b2 Bh6 Bf6 Qf8 Rac8 h8Q Re6 Qd8 Ra8 Rg1+ Kh2 Nh1 Nf2 Rg5 Rb8 Re5 Rc8 Re3 Rb8 Bh3 Rc8 Bf5 Nc3+ Kc5 Rb8 Qf1 Ra8 Qfd3 Rc8 Q8d4 Rce8 Qg8 R8e7 Qgd8 Re8 Bh3 Be4 Bf5 Bc6 Bh7 Bd5 Nd6 Ba8 Nb7 R8e7 Nb4 Bc2 Bg8 Nb1 Kd5 Re8 Qa3 R8e7 Rc3 Bg6 Nc2 Re2 Qad6 R7e6 Qd3 Nh3 Qe5 Nf2 Qed4
n1r3N1/1P1pbbn1/6kB/RpQb1Q2/4brB1/QrQ4R/3PP1r1/2N1N2K b - - 0 1 legal: proof: f4 h5 g4 e5 gxh5 b5 fxe5 a6 c4 Qf6 c5 a5 b4 Qb6 cxb6 axb4 Kf2 f5 Kg2 Kf7 a4 g5 h4 c5 h6 f4 e6+ Kg6 a5 b3 e7 g4 e8N b2 a6 g3 a7 c4 h7 c3 Rh3 f3+ Kh1 f2 Ra5 c2 Nc3 b1B Nf3 Bb7 Na2 Be7 Nf6 Be4 b7 Na6 Bb2 c1R Qc2 Rc8 a8Q Nh6 Qc5 Nc7 Ng8 Nf5 Bg7 Rc4 Bh6 Ng7 Nc1 Ba2 Bg2 f1B Ne1 Bd5 Bf3 Rf4 Qaa7 Bf7 Bg4 Na8 Qa3 Bae6 Q7c5 Bb3 Nf6 Rhf8 h8Q Bbc4 Ng8 g2+ Kg1 Bcd5 Kh2 Ne8 Qe5 g1R Qec3 Rg2+ Kh1 Ng7 h5+ Kh7 Bg5 Be4 h6 Kg6 h7 Rf3 Q3e5 Rb3 h8Q Be6 Rh2 Rf4 Bh6 Bf7 Rh3 Rg1+ Kh2 Bfg2 Qec3 Bgf3 Q3e5 Rg2+ Kh1 Bd3 Qec3 B3d5 Qe5 B3e4 Qec3 Nh5 Qhe5 Ng7 Qf5+
3B1KNb/3Q1R2/q1np2qB/P4bqR/p2P1kn1/2b1bQ1R/PN1B2B1/1n6 b - - 0 1 legal: proof: e4 f5 exf5 a5 b4 h5 h4 b5 Qg4 g5 Qd1 gxh4 c3 a4 c4 Ra5 bxa5 b4 Qg4 Rh6 Qe2 Rb6 Qd1 Rb5 cxb5 Bh6 Bb2 Bg7 Bc1 Bf8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 c5 f4+ Kh6 d4 c4 g4 h3 b6 h4 g5+ Kg7 f6+ Kg6 f7 e6 b7 h2 Bd2 h3 Bg2 b3 Ne2 b2 Nec3 Bg7+ Kd6 Kf5 f8B e5 g6 e4 Nd5 e3 Qf3 e2 Nbc3 e1B Nd1 b1N Nb2 c3 Nf6 Nc6 b8B c2 Bc7 Nh6 Ng8 Qg5 Bd8 Bh8 Bg7 Ng4 Bh6 c1B g7 Kg6 f5+ Kh5 Be3 Bc3 f6 Qg6 Beg5 Be3 Bf4 Qg5 f7 Kg6 f8Q Kh5 Rf1 h1Q Qf5 h2 Q5d5 Qg1 Qe6 Bf2 Bd2 h1Q Qed5 Be3 Rf2 Na7 Qe6 Qg6 Ke7 d6 Kf8 Nc6 Qd7 Qc1 Rf1 Qh4 Rh1 Qf1 Rh2 Qa6 Rh3 Na3 Rah1 Nb1 Qc7 Bf5 Qd7 Be6 Ne7 Bf5 g8R Qd3 Rg7 Qf1 Rf7 Qa6 Bg7 Kg5 R1h2 Qg3 Rh1 Qe5 Ng8+ Qef6 Qd1 Kf4 Bh6+ Qfg5 Rh5 Qe6 R1h3 Qg6 Qf3#
2Q3qB/2BB3k/rbR2K2/5P1p/Nr1PNR1n/b1n1p2Q/B2nP2p/1r3R2 b - - 0 1 illegal: No proof kernel
1Q1n1R2/1N2r3/1K1B2r1/3Q1Ppb/1Q2Q1N1/1PP2Bp1/2bp1Rrb/kRn2q2 b - - 0 1 illegal: No proof kernel
1R3BB1/2rQ2R1/2r1qr2/Np1pNN2/bKPP3b/B3P2Q/3np2n/3bNk2 b - - 0 1 illegal: No proof kernel
2n1rBR1/2R1B2b/K4p1Q/1p1B1Pb1/2Nk1nNr/1N4rP/p6P/2NqQb2 b - - 0 1 legal: proof: b4 b5 a4 c6 axb5 Qc7 b6 Qd8 b5 Bb7 Ra4 Ba6 Ra1 Bc8 d4 cxb5 Nc3 h5 Nb1 e5 dxe5 h4 Qd3 h3 gxh3 Qc7 Qd1 Qd8 Kd2 Ke7 Kc3 Ke6 e4 g5 f4 a5 b7 d5 f5+ Kd7 e6+ Kc6 e5 Kc5 e7 a4 e8Q g4 e6 a3 e7 a2 Bg2 g3 Qe1 Rh5 Nd2 Rh7 Ba3+ Kb6 Kb4 d4 c4 d3 Nb3 d2 Bd5 d1B Ne2 g2 Rc1 Bh6 Qf8 g1R e8N Nd7 b8B Ndf6 Bd6 Bg5 Qh6 Nh5 Bf8+ Be6 Nf6 Ne7 Ng4 Rg3 Rg1 f6 Rc3 Bc2 Nec1 Nc8 Rg2 Bg8 c5+ Kc7 c6 Kb6 c7 Bd3 Rg1 Bf1 Rc4 Nf4 Rg2 Ka7 Ka5 Rh8 Bae7 Bh7 Bf7 Qd1 Bd5 Nb6 Rc6 Re8 c8N+ Kb7 Nd6+ Ka7 Nc4 Nc8 Rg1 Kb7 Rb6+ Kc7 Ka6 Kd7 Ba8 Kc7 Rb7+ Kc6 Nc5 Kd5 Rc7+ Kd4 Bd5 Bg8 Qg7 Rh5 Qh6 Rh4 Rg2 Bh7 Rg1 Qd2 N5b3+ Kc3 Bh1 Rd3 Qg6 Bh6 Bd5 Re3 Nge5 Rf3 Rg5 Rg3 Nba5 Kd4 Ng4 Qd3 Qh5 Qd2 Rg8 Bg5 Qh6 Qd1 Nab3+
Q5KN/1Nb3Qr/2n1p1B1/3np3/P2BQ2N/1rPPqb2/2pR4/R1Qbn2k b - - 0 1 illegal: No proof kernel
1r3NBK/kbBnq2n/2P3pB/bN2PP1R/3Q4/nR1Q1r1p/p1r5/5B1R b - - 0 1 illegal: No possible last move
7K/QN3QP1/2p1k3/P3brb1/3pQRb1/2nnBBPB/R1p1rq1N/r4Q2 b - - 0 1 illegal: No proof kernel
nk1RRb2/4r1pQ/P2pnP1B/1BQ1RN1P/4bp1b/1Bq5/rR2rN1K/8 b - - 0 1 illegal: No possible last move, all moves rejected
3N1RR1/b1Qn1Np1/p1b1bQK1/1B1nB1N1/pP3P2/rP1nq2r/R7/4N2k b - - 0 1 illegal: No proof kernel
3N1Rr1/1K2NP2/5P2/1bq1r2B/pp3Qp1/B1Rn1P2/Q2Q1Qrk/2b1nRn1 b - - 0 1 illegal: No proof kernel
3n4/QBr2PBP/3Bn1p1/nQQR2R1/4K1p1/rPp1NQ2/1q4b1/b1kN1b2 b - - 0 1 illegal: No proof kernel
1N2n2B/Qn2p1P1/1P1pbN2/r2n4/kQr2b2/4qR1p/K2RP1Br/3BQ1B1 b - - 0 1 illegal: No possible last move
N1k1RK2/1br1ppp1/3r1n1B/1R5P/1Q1nrP1P/RR1n2B1/1Q1q3N/1b1B4 b - - 0 1 illegal: No possible last move
QB4RR/R2PbN2/1PB2n1r/Nrb1n2p/3b3n/3Np2q/1p2KN1P/k5Q1 b - - 0 1 legal: proof: e4 a5 c4 d5 exd5 b5 b4 f5 g4 Ba6 gxf5 axb4 Qf3 b3 Qe2 b4 Qd1 Bb5 cxb5 Ra4 Nc3 Ra5 Nb1 Ra8 a4 Kf7 d4 Kf6 f4 h5 b6 g5 a5 e5 a6 c5 a7 e4 d6 g4 d7 c4 d5 b2 d6 b3 Bh3 c3 Bg2 g3 Na3 b1N Nc4 c2 Nh3 Qc8 d8N Rh6 Rg1 Be7 Nf7 Nd7 Na5 Nd2 Nf2 Ne5 Ke2 Ndf3 d7 Qc3 Ba3 c1B Bd6 Bb2 Bb8 Nh4 Bf3 g2 Qf1 Kg7 f6+ Kg6 Ra3 Kf5 Ra4 Ke6 f5+ Kd5 Nb7 Qc8 Nfd8 Bf8 f7 Be7 f8R Bd4 f6 b2 Ra5+ Kc4 f7 Kb3 Ra4 Nf6 Rh8 Nc4 f8N Ne5 Ng6 Qc3 Nf7 Kc2 Nf4 Bdc5 Bg4 Qh3 N4d3 Kb3 Bf3 Bd4 Rc4 Ka2 Rcc8 Bdc5 Rcg8 Bd4 Bc7 Rc8 Bb8 Rc5 Qc1 Rd5 a8Q+ Ra5 Qg5 Bdc5 Rc1 Bd4 Rc7 Ka1 Ba7 Rc5 Na5 Rb5 Bb8 Bdc5 Ra7 g1B Nd1 Bgd4 Qg1 e3 Bc6 Kb1 N1f2+ Ka2 Kd1 Ka1 Ke2+
RQ5r/RQqP3b/pN1RPpRr/1b1K2Bp/1B6/n1b1rP1n/1B6/3N3k b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Kd7 e3 e6 d6 Bb7 d5 Qe7 Bc4 Qd8 Bb3 Bc8 Ba2 Ke8 d7+ Ke7 Bc4 Kd6 Bb3 Ke5 d6 Kf5 Bd5 exd5 Ra3 Ke5 Ra1 Ke6 Kd2 Kf5 Kc3 Ke4 b4 c5 g4 h5 f3+ Ke5 b6 c4 b7 Rh7 b5 Be7 e4 Nc6 b8Q Rh8 b6 Bf8 g6 Nf6 g7 Rh6 g8R Qc7 d8B Nh7 b7 Bd7 g5 Nd4 g6 Bg7 Bb2 Kf4 e5 Kg3 e6 Kg2 Nd2 Bb5 d7 Ng5 Ne2 Nh3 Qb3 Nc2+ Bf6 Bh8 g7 Na3 Kd4 c3 Bg5 c2 Nc4 c1R Nc3 Re1 Nb6 Re3 Rhd1 Kh2 Rd3 Kg2 Nd1 Kh1 Qf8 Re8 b8B Rd8 Qd6 Rc8 Qc6 Re8 Kc5 d4 Kd5 Rc8 Rd2 d3 Qb7 Re8 Rf8 Rd8 g8R Bc3 Rg6 f6 Rf7 Rdh8 Rf8 Qd8 Bd6 Qc7 Ra8 a6 Rc1 R8h7 Bb4 Rh8 Rg2 d2 Ra7 Bd4 Rc6 Bc3 Rd6 Bd4 Nc3 d1B Rg3 Bc2 Nd1 Bc3 Rg4 Qc8 Rc4 Qd8 Rc8 Qc7 Rca8 Bb1 Qb8 Bf5 Qc4 Bc2 Qc6 Bf5 Qcb7 Bc2 Rg7 Bh7 Rg6
bQ2b3/R2PKpQr/BN3r2/1npp1P1R/5P1b/7Q/1Bn2QN1/1rkqN3 b - - 0 1 illegal: No proof kernel
bQKR2Qn/1N1p3N/n2B1rrP/2PQ1Q2/1p1p1P2/1b2b3/N1q5/2rR1B1k b - - 0 1 illegal: No proof kernel
R2B3n/B1Bpr3/k2P4/4pN1b/2prbPn1/2Pr1Q1K/1q1N1R1Q/N3N2b b - - 0 1 legal: proof: e4 f5 exf5 g5 f4 b5 a4 g4 axb5 Bh6 Bd3 Bg7 Bf1 Bf8 h4 Ba6 Be2 Bb7 Bf3 gxf3 g4 Kf7 g5 Ke8 g6 Bc8 Ra4 Bh6 Ra1 Bg5 hxg5 Bb7 Ra2 Ba6 Ra1 Bc8 Kf2 a5 Kg3 c5 d4 e5 b4 h5 f6 a4 g7 h4+ Kh3 c4 d5 f2 g6 a3 d6 a2 c3 Ra6 b6 Nc6 b5 Nce7 b7 Qb6 b8N Kd8 f7 Nc6 f8B Rh7 Nf3 Ra8 Be3 Ra5 Na6 Bb7 Rh2 Kc8 Ne1 Nd8 Nb4 Nh6 g8N Ng4 g7 Nf7 Be7 Nh8 Bd8 Be4 Nh6 Kb7 g8Q Re7 Nd2 f1B+ Rg2 Be2 Qh7 B2f3 Nbc2 Be2 Nf5 B2f3 Rb1 a1R Rf2 Be2 Rb3 B2f3 Qe2 Rd1 Ra3 Ka7 Na1 Kb7 Ndb3 Rd4 Nd2 Ka7 Qd1 Qb8 b6+ Ka6 b7 Rd3 Rb3 Rad5 Ba7 R5d4 Qh6 Qc7 b8B Qb6 Qe2 Qb5 Rb1 Qb2 Qe3 Bd1 Bbc7 Be2 Qf3 Bd1 Kg2 h3+ Kg3 h2 Kh3 h1B Qh7 Qa3 Rb8 Qb2 Ra8 Nh2 Qe3 Bh5 Qf3 Ng4 Qh6 Be8 Qh4 Bg6 Qhg3 Bh5 Qh2
N7/n1p2B1r/4nP2/N1b5/rqb1R2R/1PbnB2Q/QB2ppP1/KB1N3k b - - 0 1 illegal: No possible last move, all moves rejected
3k4/q1ppp2P/3QQBrB/NrR2P2/2bn2N1/1nb2QrP/1bB5/5RBK b - - 0 1 illegal: No proof kernel
2N2Kn1/QP1Br3/2nP2Q1/5bR1/3k1NQn/1Rp1b1p1/b2rPp2/B2R1q1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 d4+ Kc4 h4 c5 b4 a5 h6 g5 h5 f3 b6 a4 b5 a3 h7 a2 d6 f4 h6 f2 d7 g4 Ke6 f3 Kf7 g3 d5 Bb7 d6 Qh4 d8Q Bc8 b7 Qf4+ Qf6 Bd7 b6 Bc6 Nd2+ Kd5 Bb2 c4 Qa4 c3 Rd1 a1N Bh3 f1B Qa7 f2 Bd7 Nc2 Nh3 Ne3 Ba1 Nf5 Qg6 Kd4 Nc4+ Qd2 Ke8 Bd5 Nf4 Nc6+ b8R Bh3 Qg4 Be7 Qg6 Bd8 Kf8 Bg4 Rh5 Nh4 Rg5 Bf5 b7+ Ke4 Nb6 Ba2 Nc8 Bb6 Qf7 Bh3 Qg6+ Kd4 Rb5 Bf5 Rb3 Nge7+ Kg7 Rf8 h8Q Re8 h7 Ng8 Qg4 Re7+ Kf8+ Kc4 Qhg7 Qe1 h8R Be3 Q7g6 Qf1 Qb6 Ra5 Qa7 Rd5 Rh5 Rd2 Rg5 Rg7 Nb6+ Kc5 Re8 Rh7 Nc8+ Kc4 Re5 Re7 Rc5+ Kd4 Rh5 Nf3 Rh1 Nh4 Nb6 Bd3 Rg5 Bf5 Nc8+
Kn5n/1PRB1Np1/Q6r/p1Pk4/b1R2bp1/3qB1r1/1NbQ1P1Q/Q3n2B b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Ke3 d5 Kd4 a5 b4 e6 c4 Rh4 f6 Rh7 h4 Qd7 h5 Qe8 b6 Bb7 c6 Bc8 h6 Ba6 c7 Qa4 c8B Bd6 b7 Qb5 Bg2 Qa4 b5 Ra7 b6 Bc7 Kc5 e5 Nc3 e4 Bd7 e3 Qd2 e2 Nh3 e1N Nd1 d4 Ng5+ Kf8 f7 Ke7 Nb2 Nc2 Re1+ Be5 Bh1 d3 Re4 Rh8 h7 Nh6 Ra2 Kf6 f8Q+ Nf7 Qc8 Bf4 Ra3 Rd8 h8Q Ne1 Qh2 Qc2 Rc3 Nh8 Nf7 Bb5 Qg1 Ba4 Qf1 Nc6 b8Q Ra6 b7 Re8 Qd8+ Re7 Qb6 Re6 Qd6 Nb8 Qa7 Rb6 Qa6 Rb3 Qg1 Ra3 Kb6 Qb1 Ka7 Qc2 Qe3 d2 Ka8 d1B Qed2 Qd3 Qh2 Rb3 Qa3 Bc2 Qa1 Rd6 Re7 Re6 c5 Ra3 Rc4 Rc3 Re4 Kf5 Bc6 Rh6 Rc7 Kf6 Rd4 Ke6 Re4+ Be5 Bd7+ Kd5 Qe2 Bf4 Be3 Qc4 Qd2+ Rd3 Bd4 Rg3 Be3+ Qd3 Rc4+
1q1b1Q2/1Pnp2K1/1p1R1BR1/1k3bP1/4Q2R/1Brn1P1N/1R2rB1p/3b1Nr1 b - - 0 1 illegal: No proof kernel
5b1N/P1r1P1np/3k1Nb1/2np2N1/Q1pB1RN1/K2P1Q2/1B1R1qr1/3b1nQ1 b - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 b5 hxg5 Bd6 c4 Bb4 cxb5 Bf8 b4 a6 b6 Be7 b5 Ba3 e3 Bb4 b7 Bc5 b6 Bf8 Bb5 axb5 g4 Ke7 a4 d5 g6 f5 e6 c5 g7 b4 d3 c4 Kd2 f4 Kc2 f3 Kb2 b3 g5 f2 a5 f1N a6 Nd7 b8Q Ngf6 g8Q Ra7 b7 Ng4 g6 Ndf6 g7 Qd7 e4 Qc7 e5 Ng3 Nc3 Nh6 Qa8 Bd7 b8B Nf7 Nh3 Nfh5 Qf3 Nf4 Rh2 Ba4 Nb5 Nf1 Ng5 Qd8 Ka3 b2 Rd2 b1B Nd6 Qa5 Bb2 Rd7 Ba7 Rb7 Bad4 Nh6 Ndf7 Nf5 a7 Rc7 Qc6 Bd1+ Qa4 Bbc2 Rb1 Be2 Re1 Bed1 Ree2 Qb6 Re4 Nh3 Rf4 Nf2 Nh6 Ne4 Ng4 Kd8+ e7+ Kc8 e6 Nc5 Qb4 Ba4 e8N Kd8 e7+ Kd7 Nef6+ Kd6 Qb3 Be8 Qa4 Bg6 Qf7 Nb7 g8N Ng7 N8h6 Nc5 Qe3 Rg8 Qg1 Bf5 Qh5 Be4 Qhh1 Bg6 Qf3 Nb7 Bdc3 Qf2 Bd4 Nc5 Ngf7+ Ke6 Nh8 Kd6 N6f7+ Ke6 Qc2 Nf5 Ba1 Bh5 Ngh6 Rg2 Qa4 Bg6 Ng5+ Kd6 Bab2 Ng7 Nhg4
1BRQR1q1/3b3N/qB6/k6N/p1pP1RP1/1pP2n2/2B2Knr/RQbb3r b - - 0 1 illegal: No possible last move, all moves rejected
K2Qqb1q/N2Qr3/3B2P1/1bQ1p3/2NN1pQ1/BnRPP3/1r1n1p2/1k1n1R2 b - - 0 1 illegal: No proof kernel
Q2Q2n1/RbB2qQ1/1q3p2/Rqk3pP/1p5N/2QP1Pb1/rn4r1/1KNN3B b - - 0 1 legal: proof: e4 b5 a4 h5 g4 c5 gxh5 d5 exd5 Qd7 axb5 Qd8 b4 cxb4 h4 Kd7 c4 Kd6 d3 a5 Kd2 e5 Kc2 g5 b6 a4 b7 a3 f3 e4 h6 a2 c5+ Ke7 h7 e3 h5 e2 d6+ Ke6 c6 Kd5 c7 e1Q d7 Ra5 Bf4 Qde7 d8Q+ Qd6 Bg2 Na6 b8Q Kc5 Ne2 Bb7 Qa8 Qb6 Nbc3 Bd6 Nc1 Qe5 c8Q+ Bc7 Qd2 f6 Qcd7 Qd5 Rh2 Qf7 Bh1 Ra3 Rf2 Ra4 Bh2 Bg3 Nd1 Ra3 Re2 Rc3+ Kb2 Rc4 Re7 Rg4 Qf8 Qb5 Qg7 Qb6 Qdd8 Qb5 Rb1 a1Q+ Kc2 Qd4 Ra1 Qd6 Kb1 Qdb6 Ra2 Rc4 Qe1 Rc2 Ra5 Rg2 Rd7 Kc6 Qc3+ Nc5 Qb3 Na4 Qc3+ Qfc4 Rf7 Nb2 Re7 Kc5 Rf7 Be1 Bc7 Bg3 Re7 Nh6 Rf7 Rf8 h8N Ng8 Ng6 Re8 Qb3 Ree2 Re7 Qf7 Qc3+ Nc4 Nh4 Ra2 Bf4 Ba6 Ra7 Bb7 Qe1 Nb2 Bc7 Rh2 Qd2 Rg2 Qc3+
3b1NBb/N5n1/R3qp1P/4Q2N/r4nq1/B2kPp2/2Rr1QpP/2N1B1Kb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 d4 Kd6 b4 g5 h6 c5 e3 a5 b6 c4 b5 a4 b7 c3 b6 c2 Nh3 a3 Nc3 g4 Bc4 f3 Ne2 a2 Qe1 Ra4 Kg1 Nf6 Qf2 Qd7 Nhf4 Ne8 Nh5 Nc6 b8N Ne5 b7 Be7 Nc6 Ng6 Na7 Ng7 b8N Qe8 Nd7 Bb7 Nf8 Nf4 Bd2 c1B Be1 Bb2 Nc1 Bd8 Bb3 Qe6 Bc4 Kc7 d6+ Kb6 d5 Kc5 d7 Bc3 d6 Bcf6 Rb1 a1Q Rb6 Qd4 Ra6 Ba8 Bd3 Bc6 Bh7 Kc4 Bg8 Rh7 Kf1 Be4 Rg1 Qd1 Rg2 Be5 Kg1 Bd5 Na2 Kd3 Nc1+ Ke4 Na2 Bdf6 d8B Nf5 Kf1 g3 d7 Bc4+ Qe2 Bc7 Ng6 Bh8 Be7 f6 d8Q Qb1 Bd6 Rd7 Ba3 Ng7 Qc8 Bd8 Qc5 Qg4 Qb5 Qb3 Bc5 Bd3 Bcb4 Qbe6 Kg1 Rd6 Qb2 Bf1 Nc1 Rd5 Re2 Bg2 Ba3 Bh1 Nf8 g2 Rd2 Rd6 Qf1 Rd7 Rc2 Rd6 Qf2 Rd2 Nb3 Kd3 Qc3+ Ke4 Qe5+ Kd3 Nc1+
2N2B1K/3nR1RB/1q2pP1p/q5b1/2QN3r/kPPp1b2/3r1bQN/2n1B1B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 d5 f4 Kd7 g4 Kd6 b3 Kc5 g6 Kb4 c3+ Kc5 g7 a4 g5 h6 g6 e6 f6 a3 f5 a2 f7 Ne7 g8Q Rh7 g7 Nd7 b6 Nc6 b7 Qb6 b8B Ra4 Nd2 Bb7 Bg3 Rh8 Be1 Nce5+ Ke2 d3+ Ke3 d4+ Kf4 Bg2 Ndf3 d2 Nh2 Bf3 Bd3 Kd5 Ne2 Bc5 f8B Rh7 Qc2 d1Q Be3 Qd2 Rd1 a1B Rg1 Bb2 f6 Rh8 Bh7 Bc1 Qd3 Qa2 Kg3 Rb4 Kh4 Qaa5 Rg3 Bd2 Bg1 Bf4 Qa6 Nd3 Qc4+ Ke5 Rg4 Bg5+ Kh5 Nc1 Kg6 Ra4 Rg2 Ke4 Rd3 Bd6 Rd2 Bg3 Ra2 Bf2 Ra1 Qac5 Rg3 Rb4 Ra7 Qca5 Rg2 Ke3 Rg4 d3 Nd4 Ra4 Rg2 Ra2 Rg3 Rd2 Rb7 Nc5 Re7 Nd7 Qf7 Rg8 Qe8 Qa4 Qa8 Qaa5 Rg4 Be2 Qg2 Bf3 Nf5+ Ke2 Nd4+ Kd1 Rg3 Na2 Kf7 Kc1 Rg4 Kb2 Rg3 Rh8 g8N Nc1 Kg7 Ka2 Rf7 Kb2 Ne7 Ka3 Nc8+ Qab4 Bc5 Rd8 Bf8 Q4c5 Re7 Qca5 Nd6 Rc8 Kh8 Rc6 Nc8 Rd6 Nc6 Rd4 Rg4 Re4 Nd4 Rf4 Rg3 Rh4 Rg4 Bge3 Rg8 Bg5 Rgg7
1bRn3n/2BkQ1NQ/1PNP4/2K2bpq/p3B3/4rQ1q/1Pnp1BB1/1R3r2 b - - 0 1 illegal: No proof kernel
BR2q3/1R2n3/1p1NrPbp/2Q3q1/1N5p/1K3QBP/rP2N1rB/1k1n1b1N b - - 0 1 illegal: No extended proof kernel
4BN2/r2BrB2/P2Qpkpn/2NR1pQ1/2Kn2P1/2bN2qB/4P2R/1r1bq3 b - - 0 1 legal: proof: f4 a5 d4 c5 dxc5 e6 b4 Qe7 bxa5 Kd8 f5 Kc7 f6 Kc6 fxe7 h5 g4 h4 Bf4 Rh6 Bd6 Rh8 Bg3 hxg3 Kd2 Kd5 Kd3 Ke5 e8B f5 c4 b5 a4 d5 h4 d4 a6 g2 h5 b4 h6 b3 a7 b2 c6 Bc5 c7 Nf6 h7 Bb6 c5 Nbd7 a5 Nh5 a6 Bb7 c8Q Rg8 h8N Be4+ Kc4 d3 c6 d2 c7 Bd4 Nh3 g1Q Ng6+ Kf6 Nf8 g6 Nf2 Rg7 Rh2 Nb8 Qd8+ Re7 c8B Qg2 Bcd7 Qg3 Nc3 b1R Na4 Nc6 Nd3 Bc3 Nac5 Nd4 Bh3 Bc6 Qc1 d1Q Ra5 Ba4 Bf7 Qde1 Qd2 Bd1 Qg5+ Kg7 Qb6 Nf6 Qd6 Ng8 Bde8 Nh6 Bd7 Rc8 a8B Rc7 Bac6 Ra7 Bde8 Qe5 Bcd7 Q5g3 Nb7 Qgf2 Rd5 Qg3 Qc1 Kf6 Nbc5 Qf1 Qe3 Qfe1 Qg5+
1kr3Nb/1BN1q3/PrPrBNQ1/1p2RKQb/p4p2/1P5N/1n1n1q2/4BR2 b - - 0 1 illegal: No proof kernel
1nnb4/1q1N3P/k2Pp1p1/5brB/1Bp2Q1K/4q1RN/r1RB1NBP/Q4n2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kd7 f4 b5 Kf2 c5 Kg3 Kc7 a4 Kb7 h6 c4 d6 g6 f6 e6 h7 b3 d5 b4 f7 b2 a5 b3 f5 Ra6 d7 Qf6 d8B Qg7 f6 Nd7 d6 Ra7 a6+ Kb8 Kh4 Ne7 Bd2 Bb7 Nh3 Nc8 B8a5 Be7 f8Q Bd8 Bg2 Be4 Ra3 Bf5 Nc3 b1N Bb4 b2 Ne4 Rc7 a7+ Kb7 Rb3 Nb8 a8B+ Ka6 Nef2 Rc5 Rg3 Qa7 Baf3 Re5 Re1 Qe3 Bh5 Rg8 Qh6 Rg7 Qf4 Ra7 Re2 Rc5 Bdc3 Nd2 Qa4+ Ra5 Qa1 Nf1 Rc2 b1Q Bd2 Ra8 Rg5 Ra7 f7 Ra2 f8N Rf7 Ba3 Qb7 Bab4 Rc7 Nd7 Rc5 Qf6 Be4 Rg4 Rg5 Qa1 Bf5 Rg3
1k3B1r/5B1p/PQ1q3n/1b3r1p/R1Bb1NRp/3Q3P/n1RKP2R/q2N3n b - - 0 1 illegal: Other
b1R3kq/3Bn1P1/Q3Pq2/2n1p2R/QKpNN2Q/4R1Q1/pB2rPr1/1n4b1 b - - 0 1 illegal: No proof kernel
5q2/rQ3Bp1/5N2/Q2pr2n/pP1PQnNb/B2n1qN1/6PR/K2NkbR1 b - - 0 1 legal: proof: e4 f5 exf5 c5 b3 c4 bxc4 b5 h4 b4 a3 Qc7 axb4 Qh2 Qg4 Qxh4 Qd1 Qh2 d4 Kf7 Kd2 Kf6 Kc3 e5 Kb2 a5 f4 h5 c5 a4 c4 e4 c6 e3 c5 e2 c7 e1Q c6 d6 Bc4 h4 Qc2 h3 Nc3 Qeg3 Qe4 Nd7 Bf7 d5 Nge2 Ne7 Nd1 Qf3 Ng3 Ba6 c8Q Ng6 c7 Nde5 Qd8+ Be7 c8Q Rh5 Qa5 Bf1 Qb7 Ra7 Kb1 Nd3 Ba3 Qg1 Rh2 Rg5 Ka2 Rh5 Rc1 Qgf2+ Ka1 Rg5 Rh1 h2 Rg1 h1N Rc8 Nde5 Rh8 Bd8 Rh2 Nd3 Be6 Rh5 Ne2 Rg5 Bg8 Ng3 Be6 Nh5 Ng3 Qc2 Bg8 Qc7 Be6 Ke7 f6+ Kd6 f5 Qc5 f7 Ngf4 f8N Qc8 f6 Rf5 f7 Bh4 Qe1 Re5 Nh7 Qa8 f8N Qb8 Nd7 Qf8 Bf7 Ke7 Be8 Ke6 Ne2 Kf5 Bf7 Re6 Ne5 Ke4 Ng4 Re5 Qg3 Nb2 Qf2 Kd3 Nhf6 Kd2 Qe3+ Ke1 Qe4 Nbd3 Ng3+
1B4Q1/3r1p2/k1P1R3/2QpNn1N/1R3q1N/3PN1Bb/K3PpB1/1nq1r1bq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 Bb7 axb5 Bc8 c4 a5 h4 d5 b6 Kd7 b7 Kc6 d3 g5 Kd2 f3 Kc2 f2 Kb2 a4 h6 a3+ Ka2 g4 h5 g3 h7 g2 h6 Be6 Rh4 Ra5 Qc2 Qe7 Nc3 Bd7 Nf3 g1Q Bf4 Qe6 Nd1 Qf6 Bg3 Bh3 Bg2 Qh1 Ne3 Nd7 b8B Kb7 c6+ Ka6 c5 Bd6 c7 Ne7 Rb4 Rd8 h8N Nf5 h7 Nb6 Ne5 Na4 Nhg6 Rd7 h8N Qh4 c6 Qf4 Rg1 Rb5 Qc5 Nc3+ Ka1 a2 c8Q+ Rbb7 Nh4 Nb1 Qg8 Rb5 Kb2 a1Q+ Kb3 Qc3+ Ka2 Qc1 N8g6 Rbb7 Nf8 Bc7 Nh7 Rb5 Nf6 Ra5+ Kb3 Ra2 Nh5 Rd2 Qd8 Rd1 Ka2 Re1 Qg8 Qh6 Bf4 Ng7 Nef3 Na3 Bf1 Nf5 Rg6 Nb1 Bg2 Qg5 Re6 Qg4 Bh6 Bh2 Ne5 Bg1 Bf4 Qf3 Bh2 Qf4 Bg3
bBQr2k1/bn2rp2/1P2pB2/6K1/Q5R1/2P1RbN1/Pq1pBNB1/2qRn3 b - - 0 1 illegal: No proof kernel
5rqq/4P2P/1rB1BNn1/5kBK/1Pnn2p1/4R1bQ/1ppN4/BbQN3R b - - 0 1 illegal: No proof kernel
RNn1QQ2/Rq1P1P1r/p1Nk1p1n/Rr1B1p2/1bP3N1/B3n3/5K2/q2b3N b - - 0 1 illegal: No proof kernel
4Q1B1/N2PppR1/KBNP2br/n3pQ1k/7q/3PR3/1n1qrbR1/2N1N1n1 b - - 0 1 illegal: No proof kernel
RRb5/2kp1Q1N/B1N2P2/q2r1n2/1pKR1bP1/B1n1Q2P/3B1rp1/1qB1n3 b - - 0 1 illegal: No proof kernel
b6r/3pkqnp/2P1PN1q/1r3q2/Q2QnBpN/4b1PN/2RR2N1/2K3BR b - - 0 1 illegal: No proof kernel
2n3QB/r1P1b1r1/2nPR2q/2P4k/2pRQ3/1qr1N2R/1pB1pN1K/Qb4R1 b - - 0 1 illegal: No proof kernel
4b2B/n1PQ1N2/1p2r1B1/Q2b2NQ/K1p2N2/2PN1pP1/R2q2nr/1q3nkR b - - 0 1 illegal: No possible last move
n1Q3b1/n1P2p1q/1b3K1R/2P1RpPr/4k3/1rQRB3/pN5Q/2QBNrq1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 e6 dxc5 b4 f5 exf5 a3 Ne7 axb4 Ng8 b5 Qb6 Ra2 Qf6 Ra1 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 a5 b4 d5 c4 h5 g4 a4 e4 a3 g6 h4 c6 d4 c5 a2 b6 d3 g7 d2 g5 h3 b7 h2 b5 Qd5 b6 Qd4 Na3 Rh6 Nf3 Qb2 e5 Kd5 e6 Rh7 e7 Nf6 g8R Qb1 e8Q Nfd7 Nc4 Be7 Be2 Bd8 Ne1 Rh5 Qe3 Ra3 Nb2 Rb3 Qh3 Kd4 Qc3+ Kd5 Qdc2 d1R Be3 Rc1 Rh8 Rd1 Rf1 h1Q Qc1 Qh3 Rh6 Qh1 Kg3 Ke4 Rf3 Qg1+ Ng2 Rf1 Bd1 Qd3 Rb1 Qd4 Ra1 Qh1 Ne1 Qh8 Rb1 Qh7 Ra1 Ne5 Rb1 Nbd7 b8Q Ba6 b7 Bb6 Qc8 Be2 c7 Nc6 b8Q Na7 Ra1 Kd5 Kf4 Qg1 Q8h8 Ba5 Qbc8 Nb6 Rf2 Bg4 Rf3 Na8 Rb1 Rh3 Ra1 Bh5 Rb1 Bg6 Ra1 Kc6 Ke5 Rh5 Kf6 Kd5 Bd2 Rh3 Rd3+ Ke4 Be3 Rh4 Qhf8 Bb6 Qd6 Rh5 Qh2 Ba5 Rb1 Bb6 Na4 Ra3 Rb2 Rb3 Rbd2 Qg8 Rd5 Bh7 R2d3 Qh8+ Ke7 Bg8 Nb2 Qh7 Kf6 Rf3 Qd7 Rf2 Qc8 Rf1 Re5#
2R2Nb1/k1PPqQ2/3BPNr1/5pbK/2nqNQ2/1p2nn2/B4R1p/2BB2r1 b - - 0 1 illegal: No proof kernel
1Qq3RK/k1pn4/1p4b1/bP3N1B/P4q1p/4RRn1/2N1rP1Q/NBR1q2r b - - 0 1 illegal: No possible last move, all moves rejected
3N4/b1p1bBP1/3n2Nk/qQ1P1n2/1Nqp1Pr1/Q4KpR/2NBrB2/3R1b2 b - - 0 1 illegal: No proof kernel
QRKQ4/BpR1b1BB/2prNP2/3RNP2/1rbq4/r1n2p1k/1q3P2/4n1B1 b - - 0 1 illegal: No proof kernel
6NK/1pRn1Rp1/1rP1rN2/1P3Q2/2Bqp1n1/1Q1b1bP1/1qQ5/kRR3nB b - - 0 1 illegal: No possible last move
QqBNR3/1p2PrpB/BP4P1/n7/1rnKQ2p/1BNb4/q3R3/4krQb b - - 0 1 illegal: No possible last move, all moves rejected
2NqQ3/1pp1P1r1/1B1R3b/8/N2n1k2/PPQ1nQ1Q/p1B1BrRK/q1q1b3 b - - 0 1 illegal: No proof kernel
QqR4N/P1QrRq2/b1n2N2/rB4B1/rpnbP3/1p1P2Q1/2p5/k2QKN2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 Kd7 e4 f5 h4 c5 h6 b5 d6 Kc6 d3 g5 e6 c4 h5 Kc5 a5 Kd4 a6 g4 h7 c3 d7 c2 h6 b3 e7 f4 e8N b4 Ra2 f3 Nh3 g3 Nf6 g2 Bg5 g1R Nf4 Bg7 Ng6 Ne7 Nd2 Kc3 a7 Nf5 Ra6 Kb2 Rc6 Ba6 Rc8 Ne3 Rh4 Qf8 d8Q Nc4 Qc7 Nc6 Rh2 Rg8 h8Q Rh1 h7 f2+ Ke2 Rb8 Bh3 Rb5 Bd7 Ra5 Nf1 Qd6 Rg2 Rd8 Qg8 Qe5 Be8 Rd7 h8Q Ra4 Rg3 Rh5 Rf3 Ka2 Rf5 Qb5 Re5 Qb8 Re7 Kb2 Be3 Rhd5 Bg5 Rda5 Qh3 Bh8 Qhg3 Bg7 Nh8 Ka2 Nh7 Bd4 Nf6 Na3 Nh2 f1Q+ Kd2 Qf5 Nf1 Nc4+ Ke1 Qg6 Qd2 Ka1 Qd5 N6e5 Qa8 Qf7 Qe2 Rd6 Bb5 Rd7 Qd2 Nc6 Qd1+
2R2nr1/P1P2b2/1r2qqB1/2npkPBQ/3N2n1/B2N2b1/RpQ3p1/NK3B2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 Kf6 h4 b5 c4 g5 Kc2 d5 f4 e5 h6 e4 h5 e3 h7 e2 c6 e1Q c7 g4 c5 g3 a5 g2 c6 Nh6 a6 Ng8 a7 Qde7 h6 Bd7 c8B Qg7 c7 Bc6 Ra2 Qge7 Na3 b3+ Kb1 b4 Nc2 b2 Na1 Be8 Ne2 Bf7 Nd4 Q1e6 Qc2 Nd7 Bca6 Qd8 Bad3 Rb8 Be3 Rb6 Bc1 Ke7 f6+ Kd6 Bg6 Qde7 f5 Ke5 Rh2 Qd8 Rh3 Bd6 Bg5 Nf8 Rh2 Ne7 Rh4 Rg8 h8Q Nc6 h7 Qde7 Qg7 Qd8 h8N Qde7 Qh7 Qd8 Qd3 Qde7 Qh5 Qd8 Kc2 b1N Kc1 b3 Qc2 Nc3 Rg4 Na4 Kb1 Be8 f7 b2 Rh4 Qdf6 Rh2 Nh7 f8B Nc5 Rh3 Bf7 Rb3 Ra6 Rb8 Rb6 Be7 Nf8 Rc8 Nb4 Bh7 Nbd3 Ng6+ Ke4 Nf4 Ke5 Bg6 Nf2 Be2 Ng4 Nd3+ Ke4 Bf1 Bg3 Be2 Nb7 Ba3 Nc5 Nc1+ Ke5 Bb5 Qc6 Bf1 Qce6 Nd3+
1nB3n1/p2qB1QK/3r3B/n1Rp3Q/3R1r2/1BkP1qRP/1b2P1pN/4Nb2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 Bb7 axb5 Bc8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 c4 f3 b6 f2 b7 g4 h3 g3 h6 d6 h7 f6 d3 Bd7 c6 Ne7 c5 Bg7 c7 Ng8 c8R Bb5 c6 Nd7 c7 Nb8 Na3 Qd7 Bg2 f1N Nf3 Ne3 Nh2 Nc4 Qg1 Na5 Nc2 f5+ Kf4 Bc3 Kg5 Ke5 Kg6 f4 Ra4 f3 Bh6 f2 Bd5 f1Q Bb3 Bc6 Rd4 Qf3 Ne1 Bb2 Qg2 Bd5 Rg1 Bc6 Rd8 Bd5 c8B Bc6 Rc4 Kd5 Rc5+ Kd4 Rd5+ Kc3 Rg5 Na6 b8B Bd5 Bc7 Rb8 Re5 Rb4 Bb6 Rf4 Bc5 Nb8 Rf5 Qf2 Qf3 Be4 Qh5 Bg2 Rd5 Qf1 Rd4 d5 Be7 Qf3 Rf8 Na6 Rf6 Nb8 Rc6+ Kd2 Rc5 Bf1 Bc4 Kc3 Kg7 Nf6 Kg6 Rd8 h8Q Ng8 Qg7 Rdf8 Kh7 R8f6 Rg2 Rd6 Rf2 Qfg4 Rf3 g2 Rg3 Qf3 Bb3+
7N/p1p3RN/N5N1/q1rnQR1K/2Q2PpP/2bq3b/r1PB4/Rnk1r1B1 b - - 0 1 illegal: No possible last move, all moves rejected
4NKB1/b3RQ2/1N1b1nqp/Q4B1P/2Pk1r2/nPpp2n1/r1Q4B/n1R3Q1 b - - 0 1 illegal: No proof kernel
4K1BQ/3r1QRN/1nP1p2R/1kP2pbq/QPpBR3/1b6/N1n1b2Q/4r1b1 b - - 0 1 illegal: No proof kernel
1r2Q1b1/n2B2K1/2p2p2/pBk2NNR/P1r1n2N/RbP1q3/1QN1PB2/r1r5 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 gxh5 b4 Bg2 b3 Bh3 Bb4 Bf1 Bc3 dxc3 bxc2 Kf2 Ke7 Ke3 a5 Kd4 d5 a4 g5 b4 g4 h4 g3 e6 Kd6 b5 g2 e7 Qd7 e8B Qe6 h6 Qg6 h5 Ra6 b6 Qg5 b7 Rb6 h7 Nd7 b8Q Rc6 h6 Nb6 Be3 c1R Qd2 Rc2 Nf3 g1R Bh3 Qd8 Ng5 Nf6 Bf2 Rcc1 Bhd7 Qe7 Na3 Ne4 Qb2 f6 Rh5 Ba6 Nc2 Bc4 Ra3 Nc8 Q8b5 Rf8 h8N Na7 h7 Rg8 Ke3 d4+ Kf4 d3 Kf5 d2 Ng6 d1B h8N Ba2 Nh4 Rc4 Qb8 Kd5 Bb5 c6 Bd7 Rh1 Qa8 Rb8 Kg6 Qc5 Kg7 Qe3 Nhf7 Kc5 Nd6 Re1 Nb4 Bdb3 Nc2 Ra1 Ndf5 Rec1 Be1 Rb4 Bg3 Bg8 Bf2 Bab3 Be1 Rc4 Bf2 Rb7 Qc8 Rb8 Qe8
1BB4b/QN1NbN1Q/rrp1pRqn/2Ppb3/5b2/3kPKP1/2RB4/5nB1 b - - 0 1 illegal: No extended proof kernel
kn2nr2/3R2b1/2pp1NRb/r1PN1Q2/1KQ1P1r1/1Br1pq1P/4R3/BB2B3 b - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 f5 b4 axb4 d3 e5 Bd2 b6 Bc1 Bb7 exf5 e4 Bh3 e3 Bf1 Be4 dxe4 Ra7 Qd3 Ra4 Qd1 Ra8 c4 g5 f4 d6 a4 Kd7 h3 Kc6 f6 Kb7 a5 b3 c5 b2 h6 g4 f5 b5 f7 g3 f6 g2 h7 b4 a6+ Ka7 Qe2 b3 Bd2 Ne7 Nc3 Bg7 f8R Ng6 f7 Ne5 Rg8 Qe8 f8Q Bf6 Rh2 Nec6 Qc4 b1R+ Ke2 b2 Kd3 Qd8 Nd5 Ne5+ Kc3 Bg7 Nf6 Rc1+ Kb4 Ng4 Ne2 g1B Nf4 Rc3 Re2 Bh2 N4d5 Bf4 Be1 Bfh6 Qf7 Qf8 Qg6 Bf4 Qf5 Bfh6 Ra2 Qf7 Rd8 Re8 h8B Rf8 Rd7 b1R+ Rab2 Qh5 Rg2 Ra1 Bd3 Ra5 Rbe2 Rg8 Bb1 Qf7 Nh5 Nf6 Rg6 Ne8 Nhf6 Qe6 Qf3 Qg4 Qf5 Qf3 Re7 Nd7 Rf7 Kb8 a7+ Kb7 Re7 Rc8 Rf7 Nb8 a8B+ Ka7 Bb7 c6 Ba6+ Ka8 Rd7 Nc7 Bb5 Rcf8 Ba4 Ne8 Nh7 Bf6 Bb3 Be5 Re6 Rg4 Rg6 Bef4 Be5 Bg7 Nhf6 Bfh6 Bd4 Rc2 Bb2 Rc3 Ba1
4nbbR/1Nr2R1P/1pkN2RQ/np1p1R2/B1b5/b2PQPr1/7q/KQ1B4 b - - 0 1 illegal: No proof kernel
nqR5/2rNP2n/B3B1p1/b3n2P/pQ2RPpN/Q1rnB3/3k3K/1B1b2R1 b - - 0 1 illegal: No proof kernel
B2R2q1/b3P1Rp/Kn2n1p1/N3P3/1kr1n1QQ/4r1Pp/2N1N3/Qn1N2Bb b - - 0 1 illegal: Other
1nrR1q1b/B3pB2/r1N2R1Q/4Q2Q/PprNK1pN/rb2P1P1/7n/1Nk5 b - - 0 1 legal: proof: g4 a5 b4 axb4 c4 d5 cxd5 f5 gxf5 Qd6 Qb3 Qg3 hxg3 Nc6 Qd1 Nb8 d4 Kd7 Kd2 Kd6 Kd3 c5 a4 g5 f4 h5 e3 b5 f6 c4+ Ke4 b3 f5 h4 f7 b4 f6 b2 Ne2 Bg7 f8Q c3 f7 c2 Rh2 h3 Rf2 h2 Rf6+ Be6 Ra3 h1R Rd3 Kd7 d6 Kc6 d5+ Kc5 d7 Kc4 d8Q Ra6 d6 Nh6 d7 Ng4 Qa5 Nh2 d8N g4 Nc6 Rg8 Qe5 Bh8 Rd8 Kb3 Ned4+ Ka2 Bd3 Bb3 Qh6 Re1 Bd2 c1R f8N Rc4 Bc3 Ka1 Qe2 Rd1 Bc2 Rd3 Ng6 Rf8 Nh4 Re8 Rdd6 Rc8 Rd8 Ka2 Qf2 Ka1 Qff5 Ka2 Na3 b1Q Qfh5 Qf1 Nb1 Qf2 Be1 Kb2 Bc3+ Kc1 Bd1 Ba2 Ba1 Ra3 Bb3 Rc3 Bf7 Bb3 Ne6 Rc4+ Bd4 Rc3 Ba7 Rc4+ Ned4 Qf1 Rfd6 Qf6 Re6 Qg7 Red6 Qf8 Rf6
b1q3QB/B2Bpb1K/1N2N1n1/2k1Pp1n/pR3Nr1/2P2bNr/2PR1Q2/4b3 b - - 0 1 legal: proof: f4 c5 h4 b5 a4 g5 fxg5 c4 axb5 c3 dxc3 Qc7 h5 Qh2 Nd2 Qxh5 Nb1 Qh2 Kf2 h5 Kf3 a5 Ke4 h4 Kf5 h3 b4 f6 Kg6 d5 e4 Kd7 g4 Kd6 e5+ Kd7 b6 Kc6 b5+ Kc5 b7 f5 b6 d4 Qe2 a4 Nd2 d3 Rb1 Qf4 Qf2+ Qd4 Rh2 Rh7 Ngf3 Kd5 Rb4 Ra5 Ne4 d2 Ng3 d1B Bb5 Rh5 Bd7 Qe3 Nd4 Bh6 Kh7 Qe2 g6 Rc5 g7 Rc4 g5 Kc5 g6 Qf1 Rg2 h2 Bg5 h1B Bf6 Bf3 Rh2 Rh3 Rg2 Na6 b8N Nc7 b7 Ne6 Rh2 Nf4 Rg2 Nh5 Rh2 Bd2 Rg2 Nh6 g8N Be3 Bh8 Nf7 g7 Bd2 Nf6 Be1 g8Q Qe2 Nd5 Qd3 Bb5 Be6 Nf4 Qe4 Bd7 Qc6 Qe3 Bed5 Rd2 Qc8 Qf2 Be6 Nbc6 Bhg2 b8B Bed5 Na7 Be6 Bg7 Nh8 Bf6 Ng6 Bh8 Qc7 Nc8 Bf7 Nb6 Qc8 Ba7 Ba8 Qf3 Bh1 Nb5 Re4 Nd4 Bg2 Qf2 Bf3 Nfe2 Reh4 Nf4 Rg4 Nde6#
4N1bb/1K2ppQ1/PP1N1R2/Pr2QBb1/3n4/5R1Q/kR1p1nQb/2r1q1B1 b - - 0 1 illegal: No proof kernel
5B2/kqNPK3/p2P4/b1R5/n2r1p1Q/1RP1RR1p/2Q1bBNr/2nB2bb b - - 0 1 illegal: No proof kernel
2R4Q/1nPQ2n1/4b1N1/3Rppbb/K2prPN1/b1r2B2/P4q1B/kN1N2R1 b - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 dxc5 h5 gxh5 d4 b4 Qd5 exd5 axb4 Kd2 Kd7 h4 b5 c4 g5 Kc2 e5 Kb3 g4 f3 g3 h6 g2 c6+ Kd6 c7 Kc5 h5 Nf6 d6 Nc6 d7 Nd8 h7 Ne8 h6 Ng7 Ne2 g1B Bf4 Nb7 d8N Be3 Nec3 Be6 Bh2 Bg5 Bg2 Rc8 Rg1 Rg8 h8Q f5 Kb2 b3 Ka3 b2 h7 b4+ Ka4 b3 Nf7 Bfe7 Nh6 Bd6 Na3 b1B Ng4 Bd3 Rc1 b2 Nab1 Be2 Qc2 Bde7 Nd1 Bf8 Ka3 Bd6 Qa4 Bf8 Qd7 Bd6 Nd2 b1Q Ka4 Qb2 Nb1 Qd2 Rc2 Qe1 Rb2 Qf2 Rc2 Kb6 Bh1 Ba3 c5+ Ka6 c6 Kb6 Rd2 Kc5 Rb2 Kc4 Rb5 Kd3 Rd5 Kc2 Nde3+ Kb2 Nd1+ Ka1 Bg2 Rcf8 c8R Rf6 c7 Rh6 Qe8 Rh3 f4 Re3 Qd7 Re4 Nge3 Bg4 Bf3 Bh5 Ng4 Rd8 Qde8 Rd6 Qd7 Rb6 Qg8 Rb3 h8N Rbe3 Ng6 Rc3 Qh8
1KRB1q2/1Bp5/rk2pQ2/bn3P1Q/2bP2B1/1r1prN1R/4Rr1P/3NRn2 b - - 0 1 illegal: No proof kernel
NR1q1n2/1rpQP3/6Bb/2kBbn2/PRQN3R/Kp2P1p1/b1rb4/2B1B3 b - - 0 1 illegal: No proof kernel
R1K2bB1/RP2q3/1B2Qr2/1k1pbRN1/Q2QnQ2/Pp1b1P2/1n2pN2/5b1r b - - 0 1 illegal: No possible last move
1n2r1n1/KP2n1PR/NQRR1n1Q/1PB1p3/2B1rqb1/2p2k1N/pN5b/1N6 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 g4 h5 b4 e6 f4 a4 b6 h3 g5 h4 b5 a3 b7 h2 g6 a2 f6 c6 g7 h3 f5 Rh5 f7 Bd7 f6 Rh8 Qh5 Bc8 Bc4 Ne7 Ba3+ Kd7 Kc5 e5 d4 Ra6 d6 Ra4 d5 Ng8 Qh6 Qe8 Kb6 c5 Bb4 Be7 f8R Qf7 Ba3 Rb4 Ka7 Bd8 Re8 Qf8 f7 Bg5 Re6 Bf4 Bd3 Re4 Bc4 Qe8 f8Q Qf7 Bb4 Qf5 Qff6 Bg3 Qfg6 Qf4 Rf6 Ne7 Re6 Re8 Ba3 Ng8 Rf6 Kd8 d7 Ke7 d8N Bg4 Nc6+ Kd7 Rd6+ Kc7 Be2 c4 Nb4 c3 Rc6+ Kd7 Bc4 Ke7 Nf3 Kd7 Nfd2 Ke7 Rd1 h1N d6+ Kd7 Na6 h2 Bc5 Nf2 Qf6 h1N Qfg6 Bh2 Qe6+ Kd8 d7 Ng3 Qd6 Nf5 Qd4 Nd6 Rh1 Ke7 d8N Kd7 Ne6 Ke7 Qe3 Kf7 Qd4 Nf5 Qd8 Nfe7 Qb6 Ng6 Rd1 Kf6 Ng5+ Kf5 Nh3 N6e7 Nb3 Nd3 Nc1 Nb4 Rdd6 Nbd5 Nd3 Ndf6 Nb2 Bh5 Na3 Kg4 Rh1 Kf3 Nb1 Bg4 Nf2 Bg1 Rh4 Bh2 Nh3 Qe3 Qg6 Qd2 Rh7 Qf4 Qh6
1nb1N2n/p4pNP/2N3B1/2p1Rb1Q/bP1Qb1R1/qNB1r3/P3k3/KB5r b - - 0 1 illegal: No proof kernel
1QNqrR2/1b3R1r/nnkN2P1/p3rp2/5P2/qP4Kp/N2BNn2/RQ3B2 b - - 0 1 legal: proof: c4 g5 d4 d5 cxd5 b5 a4 Bg4 axb5 Be6 h4 gxh4 d6 Bh3 d5 Bg7 e3 Bd4 exd4 Bc8 g4 Kd7 f4 h5 Kf2 f5 b6 c5 b7 e5 g5 a5 g6 h3 b3 h2 Bd2 c4 Ne2 c3 Kg3 c2 Nbc3 c1Q Na2 Qc5 Qb1 Na6 b8Q e4 Qe1 e3 Qb1 Ke8 d7+ Ke7 d6+ Ke6 Bh3 Rh7 Bf1 Ne7 d5+ Kf6 Bh3 Qa3 Re1 Bb7 Bf1 Nc8 Rc1 Qh8 d8N Nb6 d7 Ke7 Rc7 Kd6 Nc6 Qd8 Na7 h1N+ Kh3 Qg5 d8N h4 Rf7+ Kc5 d6 Nf2+ Kh2 h3 d7 Qf6 Nc8 Qe7 Nd4 e2 Kg3 e1R Ne2 Kd5 Rg7 Kc5 Nf7 Kc6 d8R Qd7 Rf8 Qd8 Nec1 Re5 Ne2 Ra7 Nfd6 Rh8 Rff7 Rhe8 Rg8 Ba8 Rf6 Rh7 Rgf8 Bb7 R6f7
K3BR2/4pq1N/pb1bP2B/1Q2nb1Q/n2k1r2/p3R3/qBPP2N1/3R2Rq b - - 0 1 illegal: No proof kernel
6N1/N1PRq2r/N3N3/3pQb1q/1npP2Rq/pR3r1P/B1r2k1B/1K3n1Q b - - 0 1 illegal: No proof kernel
B3r1N1/1P3r2/KpR1Qnbn/1R3n2/2p2q1N/BRP1N2p/3Q2P1/2Nqqk2 b - - 0 1 illegal: No proof kernel
bQ4R1/PR1pq2n/1R2B3/2B1prb1/5Nq1/qpP2rQ1/1P1N4/1KQ1Rrk1 b - - 0 1 illegal: No possible last move
8/k1N1qNr1/q2QqN1p/P1Rp1P1B/2bQ4/p2n1Q1K/PB1nr1Q1/2Rr4 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 c5 hxg5 a4 d4 Bg7 Nf3 cxd4 Ng1 Be5 Ne2 Bc7 Ng1 Ba5 bxa5 Ra7 Bc4 Ra6 Bf1 Ra8 g4 d5 f4 Kd7 Kf2 Kc7 Kg3 b5 c4 Kb7 c5 e5 c6+ Ka6 c7 a3 f6 h6 g6 e4 g7 e3 g5 e2 g6 b4 f7 b3 f8Q b2 f5 d3 Nf3 e1Q+ Kh3 Nd7 Ne5 Qe2 Nf7 d2 Nc3 b1Q Bb2 Qe4 Rc1 Qe6 Nb5 Qde7 Rc5 Ngf6 g8Q Ne4 g7 Ra7 Bg2 Bb7 c8Q Ne5 Bf3 Nd3 Bh5 Rh7 Qf1 d1R Qf3 Nd2 Qc7 Ra8 Qe5 Re8 Nc7+ Ka7 Qd4 Ba6 Re1 Bc4 Rh1 Q7d7 Qe7 Qa6 Qd6 Qee7 Rf1 Qde6 Rg1 Rb1 Rc1 Ra1 Qh8 Rb1 g8N Rg7 Nf6 Ra1 Rf1 Rd1 Qg8 Rg2 Qg7 Re2 Qgg4 Rg8 Qgg2 Rg7 Rg1 Ra1 Rc1 Rb1 Rc2 Rd1 Rc1
kN1b2r1/2Rb1pq1/p2Rq3/bP2rP2/pB1BN1qQ/3BQ1N1/P3n3/3N1K2 b - - 0 2 legal: proof: g4 h5 gxh5 b5 c4 d5 Qa4 bxa4 cxd5 Qd6 Kd1 Qd7 Ke1 Qd8 d4 Rh6 e4 Bg4 d6 Kd7 e5 Ke6 d5+ Kf5 e6 Kf6 Bd2 Rh8 Bh6 Nd7 Bc1 Be2 exd7 Ba6 Bb5 Bb7 Bf1 Bc8 h4 Ke5 b4 c5 f4+ Kd4 h6 g5 h5 e5 f5 g4 h7 e4 h6 a6 b5 g3 Bd2 c4 Bd3 Kc5 Kf1 Kb6 Bb4 Kb7 Ne2 e3 Nbc3 Qe8 d8Q Qe6 d7 Nf6 d6 Nd5 Rd1 Be7 Qe8 Rg8 h8B Nf4 h7 Bd8 Bd4 Rb8 h8Q Ka8 Qh4 g2+ Kg1 Rb6 Ng3 e2 Rc1 e1B Nd1 c3 Qee7 Qb3 Qe3 c2 Rh3 Qe6 Rh1 Bf6 d8N Bd7 Nc6 Bd8 Nb8 Rc6 Rh3 Rc5 Rh2 Re5 Rh1 Be8 d7 Bd2 Kf2 Ne2 Rf1 Bc7 d8N Bd7 Nb7 Bd8 Nc5 g1Q+ Kf3 Be1 Nce4 Bc3 Be7 Bca5 Bb4 Qh6 Rf2 Qg7 Rh2 Qe1 Kg2 Qg4 Rh1 Qc3 Kf1 Qb2 Rb1 c1Q Rh2 Qc5 Rc1 Qb6 Rc7 Qf6 Rh1 Qb3 Rh2 Qfg7 Rf2 Qe6 Rh2 Nf4 Rhc2 Ne2 R2c6 Rh8 Rb6 Rg8 Rd6
8/p1rbnbQB/K4pR1/p2Bk1bQ/1P3P2/1Qn3P1/BNq3Rq/1NBn4 b - - 0 1 legal: proof: e4 c5 h4 g5 hxg5 d5 d4 b6 dxc5 d4 a4 Na6 a5 bxa5 Nd2 Rb8 Nb1 Rb6 Qh5 Rd6 Qd1 Rd5 exd5 Bh6 Nc3 Bg7 Nb1 Bf8 Ke2 Kd7 Kd3 e5 Kc4 h5 Kb5 f6 c4 d3 b4 h4 g3 d2 c6+ Kd6 c7 e4 c5+ Ke5 d6 e3 c6 h3 d7 e2 g6 e1N g7 h2 Qh5+ Kd4 Ne2+ Ke4 Nf4 d1Q Bg2+ Kd4 Nd3 Rh7 Bd5 Ne7 g8Q Qc2 Nb2 Rf7 Qg7 Nd3 Rg1 h1B Rg2 Qe8 d8Q Bd7 c8B Nac5 Bb7 Ne4 Ba2 Nc3+ Ka6 Ke4 c7+ Kd4 Qa8 Qb8 c8B Qf4 Qf5 Qh4 Bbd5 Qh2 Qf3 Ke5 Qh5+ Nf5 Qb7 Bc5 Qb5 Be3 Qc4 Bg5 Qb3 Ne7 Bcb7 Nd1 Be4 Nf4 Bh7 Ne2 Bd5 Qg1 Rh2 Nec3 Rh4 Be4 Rg4 Bef5 Qf8 Qh2 Qg7 Bf4 Rg6 Bg5 Be6 Bh3 Bd5 Bhe6 Qc4 Bc6 Bd2 Nc8 Qb3 Ne3 Na3 Rc7 Rg1 Bcd7 Nb1 Ne7 Bc1 Ned1 Rg2 Bf7 f4+
7Q/1NPb4/P2nBR2/2qqb2p/1k1R1pR1/1pnRr3/1K1NNP1Q/2B1n1b1 b - - 0 1 legal: proof: e4 c5 h4 d5 d4 a5 b4 g5 hxg5 b5 dxc5 axb4 Qe2 d4 Qd1 Ra6 Rh4 Rd6 Rh1 Rd5 exd5 Qd7 Be3 Qd6 Bc1 Qd8 Kd2 Kd7 c4 e5 Kc2 h5 g4 f5 a4 d3+ Kb2 b3 d6 Kc6 d7 d2 g6 b4 g5 e4 g7 e3 g6 e2 a5 e1B a6 Rh6 Na3 Qg5 Rh3 Bd6 Ne2 Ne7 g8R Bh2 g7 f4 Rd3 Nf5 Bh3 Nd6 Be6 Bg1 Rf8 Qe7 d8Q Nd7 g8R Ne5 Rg4 Bd7 Rf6 Nf3 Qh8 Rg6 Rd4 Rg5 Rb1 Re5 Ra1 Re3 Rb1 Kc7 c6 Kb6 c7 Ka5 c8N Ka4 c5 Qf8 Qc2 d1Q c6 Bd2 c7 Ne1 Qd3 Ka5 Ka1 b2+ Ka2 Bc3 Nc4+ Kb5 Qe4 Qd2 Qh1 b3+ Ka3 Qd3 Qh2 Qf5 Rd3 Be5 Rd4 Qe4 Ra1 b1N+ Kb2 Qh1 Ra4 Nc3 Rd3 Qd5 Rb4+ Kc5 Ra4 Nf7 N8d6 Qe7 Nb7+ Kb5 Nca5 Qec5 Rad4 Nd6 Nc4 Kb4 Nd2+
1R3qB1/n6b/nQRkpB2/B1r2p1p/BRb1P3/K3PP2/N2q1bN1/Q1n5 b - - 1 2 illegal: No possible last move, all moves rejected
R1nr1q2/B2p1p2/1BN3R1/q2P1PnK/2p4Q/3Rk2n/PNb4B/Qq1rB3 b - - 1 2 legal: proof: g4 b5 b4 a5 bxa5 h5 gxh5 b4 c3 b3 Bg2 e5 d4 Be7 Be4 Bb4 Bd3 e4 cxb4 exd3 f4 Ke7 Kf2 Ke6 Kf3 Kd5 Kg4 Ke4 h4 c5 h6 g5 f5 b2 d5 c4 h5 d2 b5 Qc7 a6 Qa7 b6 Qc7 a7 Bb7 h7 Nc6 h6 Qf4+ Kh5 g4 Nc3+ Kd4 e4 b1Q e5 g3 e6 g2 e7 Qb4 e8Q Qf2 Na4 Qb1 Qe7 Nb8 Qh4+ Ke3 Nf3 g1Q Nd4 Qg7 Nc6 Ne7 Rg1 Qf8 Rg6 Qg7 Nb2 Na6 Qg1 Rhb8 h8B Nc5 h7 Qf8 Be5 Ne6 h8B Nc8 Bh2 Ng5 Bc3 Ba6 b7 Bb5 Qh1 Ba4 Ba5 Qe1 Bb6+ Ke2 Qg1 d1N Bd2 Bc2 Bda5 Qc3 Qgd4 Qca3 Be1 Qa5 Qg1 Nf2 Qh1 Nd6 Qg1 Rd8 b8B Nfh3 Qgd4 Nc8 Qc3 Qd1 Qf6 Qd3 Rd1 Qb3 Rd4 Ke3 Bbe5 Rb8 a8R Rb7 Bb8 Qd3 B8a7 Qf1 Bc5 Rb3 Bcb6 Rd3 Qg4 Rd2 Qd1 Qd3 Qa1 Rd1 Qh8 Qdd2 Qh7 Qc1 Qh8 Qb1 Qf6 Nh7 Qh4 N7g5 Rd3+
4rqqQ/1pb3P1/P1Rn1bQ1/1P4p1/kB3p1R/2R1r3/N1rN4/NK1B1bN1 b - - 0 1 illegal: No proof kernel
1N2rR2/KpPbQ3/3Rr2n/p2k2Np/r2N3P/P1Q1b1BB/N2q4/1R3q1b b - - 1 2 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 Ke7 e4 Ke8 g4 fxe4 f4 Ke7 f5 Nc6 f6+ Ke8 Bf4 Nd4 Bc1 Nf5 gxf5 Qb6 Bh3 Qc7 Bf1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 a5 c4 g5 h4 d5 e6+ Ke8 e7 Kf7 e8N e3 c6 g4 c7 e2 c5 e1Q c6 g3 a3 g2 Nc3 Rh6 Nge2 g1R Bf4 Qg3 Na2 Be7 Rb1 Qg5 Ng7 Bf8 Bg3 Qe8 Ne6 Rg2 Qe1 Bd7 c8Q Bg7 Kc5 d4 Kb6 d3 c7 d2 N2d4 d1B Qd8 Bf3 Qc3 Qf8 Rh3 Rb8 Ka7 Qd2 Rh1 Re2 Bh3 Re4 Rb6 Bg2 Rhb1 Bh1 Rc6 Rg6 Rd6 Nh6 Qe8+ Kg8 Qe7 Re8 Ng5 Rg4 Nc6 Ra4 Nd4 Bh8 f7+ Kg7 Qe2 Rge6 Qe1 Kf6 Qee3 Qg7 f8N Qf7 Qe2 Ke7 Qe1 Be5 Qe2 Bf4 Qe5 Bdc6 Nd7 Be3 Nb8 Bd7 Qec5 Rf6 Q5b4 Qc4 Qc5 Re6 Q5b4 Qf1 f6+ Kf8 f7 Ke7 Be1 Kf6 f8R+ Ke5 Bg3+ Bf4 Rb6 Kd5 Qe7 Be3 Rd6+
1bK3Q1/r3k1bq/1Nbpn1Rq/1p3RpB/PRQ3rB/1P5q/R4NP1/5N2 b - - 0 2 legal: proof: e4 f5 exf5 c5 d4 cxd4 h4 Nh6 h5 Ng8 Nc3 g5 Nb5 Nc6 Nxa7 Ne5 Ke2 Ng6 hxg6 Nf6 Ke1 Ng8 Kd2 b5 Kd3 e5 Ke4 h5 Kd5 h4 a4 e4 c4 h3 f4 d6 Kc6 h2 f6 e3 f7+ Ke7 c5 e2 g7 e1B f5 d3 b3 d2 f6+ Ke6 Qe2+ Kf5 Qc4 d1Q Be3 Bh4 Ne2 Rh6 Ng3+ Ke5 Bf2 Qd2 Be2 Qe1 Bh5 Qea5 Nf1 Qc3 Ra2 Bd7+ Kb7 Ne7 g8Q Nd5 c6 Ke6 c7 Qh3 c8N Bg7 Nb6 Qe7 Nc6 Ra7+ Kb8 Rh7 Ne5 Bc6 f8R+ Qf7 Be1 Bf2 Ng4 Bd4 Nf2 Rh6 Bd1 Rh4 Bh5 Rg4 Kc8 Be3 Qf4 Nc7 Qc4+ Kf5 Rd8 Ne6 Rd7 Qe7 f7 Kf6 f8R+ Qf7 Rb7 Bd4 Rb8 Ke7 Ra8 Qg6 Rf5 Bc5 Nd3 Qf6 Bh4 Qh6 Nf2 Be3 Nd2 Bc5 Re1 h1Q Re4 Qb1 Nf1 Bcd4 Qd3 Bc5 Rb4 Be3 Qc4 Qc2 Rf6 Qch7 Rg6 Bed4 Nd7 Bb6 Rb8 Bd8 Nb6 Bc7 Ra8 Be8 Rb8 Ra6 Kb7 Bd7 Rf8 Bc6+ Kc8 Bb8 Rf4 Ra7 Rf5
qrN5/6r1/1np1Np1K/2Rn1QP1/R1B2q1Q/N3NPnP/1p5Q/B2b1k1q b - - 0 1 illegal: No possible last move
nN3Nr1/3Kp3/p1n3q1/PR1PQ2p/2Q1P1R1/4B2q/B1NRqk2/N1b1nr2 b - - 0 2 legal: proof: c4 d5 cxd5 f5 b4 c5 bxc5 Kd7 g4 Ke8 h3 fxg4 Bb2 g3 Bc1 g2 Qb3 g5 Qd1 g4 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nf3 Qc7 Ng1 Qd8 d4 Kd7 Kd2 h5 Kc3 b5 Kb4 a6 e4 Bh6 a4 Bf8 f4 Qc7 c6+ Kd6 f5 Rh6 a5 Qc8 c7 Nf6 g5 Rg6 Be3 Nfd7 f6 Bg7 f7 Nf6 f8N Ng4 Ne2 g1Q Nd2 g2 Ra2 Bf6 Nb3 Rg8 g6 Ne5 g7 Nc4 Na1 Qh3 c8Q Bg5 Rd2 Nb6 Qc4 Qf2 Qdc1 g1N Q1c3 Nf3 Rg1 Ne1 Rg4 Qf7 Qb2 Qg6 Qbc3 Rh8 g8R Bf4 Rg7 Rg8 Rf7 Bg5 Rf5 Bh6 Nc2 Bg5 Nc1 Bf4 Nb3 Nc6+ Ka3 Re8 Nba1 Na8 Rfg5 b4+ Ka4 Kc7 d6+ Kb7 d7 b3 Rf5 b2 d8N+ Kc7 Bd3 Kd6 Rb5 b1Q d5 Qd1 Qh8 Qe2 Qhd4 Na7 Nc6 Bg5 Nb8 Nc6 Qa2 Rd8 Bc4 Bh6 Bb3 Bg5 Qc4 Ke5 Qb1 Rd6 Ba2 Rf6 Qc1 Rf1 Qb1 Na7 Kb4 Nc6+ Kc5 Bh6 Rd4 Bg5 Qb2 Bh6 Bg1 Bd2 Be3 Bc1 Rd2+ Nd4 Bg5 Rf4 Bh6 Rf1 Rg5+ Kf4 Rg4+ Kf3 Be3 Nc6 Qe5 Nd8 Bh6 Kf2 Bf4 Ne6+ Kc6 Nd4+ Kd7 Nc6 Be3+
q1BqQnkQ/5R2/3p2r1/1B3R2/P1n1n3/b1pPN2Q/NpP4q/r3QK1B b - - 0 2 legal: proof: e4 f5 exf5 g5 b4 a5 bxa5 Nc6 f4 Kf7 f6 Nb8 f5 Ke8 Ba3 Nh6 Bb2 Ng8 g4 b6 Be5 Ba6 Bf4 gxf4 g5 Be2 h3 Bg4 hxg4 Bg7 Bc4 Bh6 Bf1 Bf8 g6 c5 a6 e5 a7 h5 g5 b5 g7 Kf7 Nc3 c4 Nd5 h4 Ne3 f3 Ne2 c3 Nc1 b4 Bb5 h3 d3 b3 O-O b2 Qe1 e4 a4 h2+ Kf2 h1Q Na2 Ba3 Rb1 d6 Rc1 Nd7 g6+ Ke8 f7+ Ke7 Rb1 Ngf6 g8B Nf8 g7 Qh4+ Kg1 f2+ Kg2 Rb8 a8B Qf4 Bb7 Rh1 Bc8 Qe5 Rc1 Qd5 Bh7 Qa8 g8Q Rb7 Qh8 Rc7 Rg1 f1N Bg6 Nd2 Qh3 Ra7 Rf1 Nc4 Bh5 Rc7 Bf3 Rc5 Ra1 Re5 Kf2 Re6 Ke2 Rg1 Bh1 Rg6 Rf4 Re5 Kf1 Re6 Ng2 e3 Rd1 Ne4 Rd2 Nh7 Rdf2 Kf8 R4f3 Kg7 f6+ Kh8 Rf5 e2+ Kg1 Re8 R2f4 Reg8 Rf3 R8g7 f8Q+ Rg8 Qe7 Re8 Qd7 Kg8 Qc6 Re5 Qe8+ Nf8 f7+ Kg7 Qf1 e1Q Rf2 Qe2 Qe1 Qd2 Kf1 Qf4 Ne3 Qh2 Rf6 Reg5 R2f5 Rg2 Qe5 Rd2 Qe8 Rd1 Qf3 Nd7 f8Q+ Kh7 Qg3 Ra1 Rf7+ Rg7 R7f6 Rg8 Qee5 Rg4 Qfe8 Nf8 Qh3+ Kg8 Rf7 Rg6 Qeh8#
n7/1pbN3R/PN4qn/2BQ1R1q/1PB1Q2B/rP3npp/2Rr4/1k1q2BK b - - 0 1 illegal: No proof kernel
n1rNk2Q/3pp2N/q1nQq3/p4rN1/rq1BP1B1/4PR2/P2b4/1R1R2RK b - - 1 2 legal: proof: f4 h5 b4 c5 bxc5 b6 d3 Bb7 g4 g5 fxg5 Be4 dxe4 hxg4 Kf2 f5 Kg2 a5 h4 f4 c4 b5 g6 b4 e3 b3 g7 g3 h5 b2 h6 Nf6 g8R Qb6 c6 Nd5 c7 Ra6 c8R+ Kf7 h7 Qf6 c5 Qg7 c6 Nb6 c7 Qg6 Qd6 Qe6 Be2 Bg7 Nh3 Nc6 Nd2 b1Q Bg4 Bc3 Rd1 f3+ Kh1 f2 Bb2 Na8 Nf3 Bd2 Bd4 Qb4 Rab1 Rb6 Rcd8 Rb5 c8Q Rf5 Rg6 Re8 h8N+ Kf8 Nf7 f1Q+ Nhg1 Qd3 Nh3 Qa6 Nf3g5 g2+ Kh2 g1R Rf6 Rc5 Rf3 Rg2+ Kh1 Rc4 Qcb8 Rf2 Nh7+ Kg8 Rc8 Rf8 Rc7 Rc8 Rg1 Rf1 Nd8 Rf2 N3g5 Rf1 Nf6+ Kf8 Nfh7+ Ke8 Rb7 Rf2 Rbd1 Rf1 Rg3 Rf5 Rf3 Qa3 Rbb1 Ra4 Qe5 Qc5 Qbd6 Qb4 Qh8+
1N1r1b2/2n1p1N1/N4RpB/1Qrq3P/4Q2p/1q2nK1B/1RNkP1P1/nr3B2 b - - 0 2 illegal: No proof kernel
R2Qr2r/1p1N2NP/R2N1rpP/q2qNnK1/4p3/BPk2B2/1n2b3/1Q1q2R1 b - - 0 1 illegal: No proof kernel
Q1n2b2/2p1p1nB/pbQB1B2/q2bK2N/kP1NBn2/3R4/qR1PP2r/6R1 b - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 a4 b5 axb5 a6 h3 Ra7 h4 Rb7 Ra4 Rb6 Ra1 Rg6 Nf3 fxg4 Ng1 g3 Nh3 g4 Ng1 Rg5 hxg5 Bf5 Rh5 Bd7 Rh1 Bc8 f4 Kd7 g6 h5 d6 h4 b6 Kc6 d7 Kb5 f5 g2 Kf2 h3 Kg3 h2 Kf4 g3 b7 Bg7 f6 Bf8 f7 Bg7 f8B Bh6+ Ke5 Qe8 d8Q Be6 g7 Bd5 Nc3+ Kb4 Nh3 g1N Nf4 g2 Nb5 Qd7 Nd4 Nf6 g8B Qb5 Bg7 Ne8 Qc2 Qa5 Nh5 Nh3 Qc6 g1B Bg2 Nf4 Bf6 Bf8 Be4 Ng7 Ra3 Be3 Re1 h1Q Rd3 Qa2 b3 Qg2 Bgh7 Qg5+ Bhf5 Ka5 Ba3 Bf2 Bd6 Rh7 Nb5 Bb6 Rb1 Rh8 b4+ Ka4 Rb2 Qg1 Bg6 Qc5 Nd4+ Qb5 Ng3 Rh6 Bh7 Rh2 Nh5 Nge6 Kf5 Nd7 Qa8 Ng7+ Kg5 Ba7 b8R Nb6 Rd8 Nc8 Re8 Nge6+ Kf5 Bc5 Ke5 Bb6 Qc3 Qa5 Rd8 Bg7 Rg8 Bf8 Rg1 Ng7 Qcc6+
n2n1N2/p1P1K1k1/N1BQ2bB/3q2B1/8/1r1B2P1/PpQ1RnNp/1Rq1r2q b - - 0 1 illegal: No possible last move
r3r3/1BpP2q1/Bp1r1p2/1PbQrPB1/5br1/3K3R/kBQ2N2/n3NQ1R b - - 0 2 legal: proof: c4 g5 e4 d5 cxd5 b6 d4 Bh6 a4 Kd7 h4 gxh4 e5 Qe8 a5 Bg7 d6 Ke6 d5+ Kf5 a6 Bb7 axb7 Bf8 e6 Nd7 exd7 Qd8 Qa4 Ke5 Qd1 Kf6 Kd2 Ke5 b8Q Kd4 g4 a5 f4 e5 b4 h5 g5 h3 f5 e4 g6 f6 g7 h2 b5 e3+ Ke2+ Kc4 Ra2 h4 Ra1 a4 Qa7 a3 Nh3 a2 Bg2 Ne7 g8B Nc6 Qf1 Kb3 Be6 Qe7 d8B Qg7 d7 Nd4+ Kd3 e2 Nf2 e1R Be7 h3 d8Q Nc2 Bea3 Bc5 Bc8 Re5 d6 Rg8 Bab2 Rge8 Rg1 h1R Bg5 Rh2 Bgb7 Rg2 Rh1 h2 Na3 Rg4 Rd1 a1B Qa4+ Ka2 d7 Nd4 Qc2 Nb3 Re1 Raa4 Re3 Ra8 Rg1 h1R Rh3 Rh2 Rh1 Rhg2 Qe7 Rg1 Qf7 Rd4+ Kc3 Rd6 Qd5 Rg2 Kd3 Rg4 Qce2 Be3 Nc2 Bf4 Ba3 Bd4 Bb2 Bc5 Ne1 Bce3 Qc2 Bc5 Kc4 Na1 Ba6 Rb8 Bcb7 Ra8 Kd3+
Q1nRn3/3r2kN/p1pnqr1P/2P1NQ1B/p2BP3/QRn4Q/3K4/R3n2b b - - 0 1 illegal: No possible last move, all moves rejected
3n2n1/1N3Rq1/PnB1n2P/2pQp2r/Q2p1N1N/1bRnPK2/3BN1rk/6Q1 b - - 0 1 illegal: No proof kernel
r2bB2q/4Qb1P/NR3p2/3N4/K1bkNP1r/p1R3pr/3nBQP1/1b1B3B b - - 0 2 illegal: Other
N3r2k/NB1rp3/1r2P3/K1RBBbp1/1Q1n3n/P5R1/1NP1Q2p/n4Brq b - - 0 1 legal: proof: g4 a5 h4 f5 gxf5 c5 d4 g6 dxc5 Bg7 b4 axb4 h5 Nf6 h6 Ng8 hxg7 Ra3 Rh4 Ra7 Rh1 Ra8 Kd2 Kf7 e4 b5 f4 h5 e5 d5 f6 b3 Kc3 d4+ Kb4 b2 c6 h4 a3 h3 c7 d3 f5 d2 Ne2 Bd7 c8B Nh6 g8B+ Kf8 f7 Kg7 f8N Ra7 Nbc3 b1R+ Bb2 Qb6 Na4 Qg1 Bb7 g5 Bgd5 h2 Nec3 Rg8 f6+ Kh8 f7 Bf5 Nd7 Re8 Qe2 d1R e6 Rdc1 Ndb6 Nc6+ Kb3 b4 Na8 Qg2 Rg1 Qh1 Rg3 Nd4+ Kc4 b3 Kb4 Rd1 Nb5 Ra6 Na7 Rb6+ Ka5 Rd2 Bh3 Rg1 Re1 Rd3 Bc3 b2 Bf1 b1N Nb2 Nd2 f8Q+ Ng8 Qf7 Nb3+ Ka4 Na1 Ka5 Nh6 Rb1 Bg6 Qf4 Nf5 Qd6 Nh4 Qb4 Rf3 Rd1 Rff8 Rdd3 Bf5 Rde3 Rg8 Re5 Rd8 Bdg2 Rgf8 Rc5 Rd7 Bgd5 Rfd8 Bd2 Rf8 Bf4 Re8 Be5+
4B2N/1K2b3/N1B1p1Bn/p2QP1bQ/b3n1Pk/pRbB4/P1R3Rn/1r1q4 b - - 0 2 illegal: No possible last move
4rR1k/KBn1Br1q/BPN2np1/QpN1p1b1/4PP2/1RnQ2r1/6B1/1r3Q2 b - - 0 1 illegal: No possible last move
2nQK2R/1k4qN/b2P2n1/p1bn1p1P/P1B3Rp/3NQ2r/1B5b/3QN1Qb b - - 0 1 illegal: No proof kernel
Q1RK2n1/8/2B1bkp1/1rppq2N/PN1P2B1/r5N1/1bP2N1R/1bQr1r1R b - - 1 2 legal: proof: f4 a5 g4 f5 e4 a4 exf5 a3 f6 Kf7 bxa3 Ke6 a4 Kd5 f5 Ra5 f7 Ra8 a5 Kc6 Bb2 h6 Bf6 Kd6 Bh4 Nc6 Bg5 Nd4 f6 Nf5 gxf5 hxg5 Bh3 Kc5 Bf1 Kc6 Ke2 Kd6 Ke3 Ke5 h4 c5 d4+ Kd6 Ke4 b5 a4 e5 h5 b4 h6 g4 a6 g6 a7 b3 h7 g3 Nc3 b2 Nce2 b1B Bh3 g2 Qc1 Qe8 Bg4 Be7 f8N Ba6 f7 Rb8 a8B Ba2 f6 Qc8 Bc6 Rb2 Ng3 Bb1 Rh2 Bc4 Nh3 g1R Ne6 Qb8 f8Q Rd1 f7 Rb5 Nef4 Be6 Nd5 Qc7 Qb8 Bg5 Nb4 Ke7 f8N Kf6 Qa8 Bd2 Nf2 Bc3 Rh1 Bb2 Rh2 Bf7 Ne6 d5+ Kf3 Qd6 Ng7 e4+ Ke3 Qe6 Kf4 e3 N7h5+ Ke7 Kg5 e2 Ra3 e1R Re3 Rf1 Re1 Rd3 Rd1 Qd6 Re1+ Be6 Rd1 Ra3 Re1 Nf6 Rd1 Rf8 h8R Rf7 Rc8 Ng8 Re1 Qc7 Re2 Rd1 Re1 Qd8 Reh1 Qe8 Nh3 Rff1 Nf2 Rad3 Kf4 Kf7 Ke5 Ra3 Kd6 Qe7+ Ke5 Qg5+ Kd6 Qf6 Kc7 Qh8 Kd8 Qe5 Nf4 Kf6 Nfh5+
B2q1Q1n/6p1/2r2pB1/k1N2N2/2p1RB2/K3Pn1R/PnN2P1r/1r2QnBb b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 b5 c3 b3 Qd4 b4 Qd1 b2 Kd2 b3 Ke1 Bb4 cxb4 Qe7 Qd2 Qh4 Qd1 Qd8 Kd2 c5 Kc3 d5 h4 Kd7 b5 Kc7 h6 Kb6 e6 f6 h5 c4 Kb4 d4 h7 d3 h6 d2 e7 Ra5 e8B Ba6 Bg2 Ne7 Nf3 Rf8 h8N Nc8 h7 Rf7 Qe1 d1R Nc3 b1N Bf4 b2 Ng6 Ne7 h8Q Nd7 Ngh4 Ne5 Rh3 N7g6 Nd4 Nd2 Qf8 b1N Ba8 Rc7 Nhf5 Nh8 Nc2 Nf1 Ne4 Bb7 Bg6 Nc3 Nc5 Na4 Ka3 Rc6 Bh2 Rc1 Bg1 Nf3 Rb1 Rd1 Rb3 Ra1 Re3 Rb1 Re4 Nb2+ Na4+ Ka7 b6+ Ka6 e3 Rd5 Nc5+ Kb5 Ng3 Rh5 Nf5 Rh4 Rg3 Rh2 Rh3 Bc8 b7 Bd7 Qc1 Ka5 b8B Be6 Bf4 Bd5 Re6 N3d2 Re8 Bh1 Re4 Nf3 Qe1+
b1Nk1Q2/b3pP1N/1rp5/KN2nQB1/Q1bn4/2NB1b2/npP1P3/3RR2q b - - 0 2 legal: proof: g4 f5 gxf5 b5 h4 g5 hxg5 c6 d4 a5 b4 axb4 d5 Ra7 d6 Rc7 dxc7 Bg7 Rh5 Bh6 Rh1 Bf8 Kd2 d5 f4 h5 a4 d4 g6 h4 g7 b3 a5 b2 f6 h3 a6 h2 a7 b4 a8Q b3 f5 d3 Kc3 d2 Kb4 Nd7 Qa7 Nh6 g8N Bg7 Bg2 Ne5 Nf3 Qd5 Qdg1 d1N Nd4 Nc3 Be4 Bb7 c8N Ba8 f7+ Kd8 f6 Nf5 Nb5 Na2+ Ka5 Nd4 Nc3 b1B Bg5 b2 Qg4 Rh3 Re1 h1B Rd1 Bf3 Qf5 Rh5 Bd3 Bh6 Bh4 Be3 Bg5 Qe4 Qa6 Qh4 Re1 Qh1 Rd1 Nc1 Re1 Ba2 Qa7 Bb3 Qa6 Na2 Rad1 Bc4 Qa7 Ne6 Qa6 Ba7 f8Q+ Kd7 f7 Rh8 Qg7 Kd8 Nf6 Rh4 Nh7 Rd4 Qe4 Rd5 Qh6 Nd4 Qf5 Rd7 Na3 Rb7 Qf8+ Kc7 Qb5 Rb8 Qa4 Rb6 Qg7 Kd8 Nab5 Bb8 Qh6 Ba7 Qf8#
q2R2q1/N2N3r/B3n1B1/1P1NB2p/KbQpk2P/3N1r1p/Q1r1b2P/3r2R1 b - - 0 2 illegal: No proof kernel
b2BBbNn/bkq1B2q/p3B3/2Q1NRN1/4P1Kp/pr5P/2bP2R1/Q1r5 b - - 0 1 legal: proof: f4 b5 c4 f5 a4 d5 cxd5 e5 g3 Nc6 g4 bxa4 fxe5 f4 Ra3 Nd4 Ra1 Nf5 gxf5 Bb7 Nc3 Ba6 Nb1 Bc8 Kf2 Kd7 Kf3 h5 b4 c5 e4 Kc7 b5 g5 h3 h4 b6+ Kb8 d6 c4 d7 a6 b7 c3 f6 c2 e6 Nh6 f7 Qc7 Ba3 c1Q Be7 a3 d8B Bd7 Bd3 Bc6 Rh2 Rg8 Rg2 g4+ Kf2 g3+ Kf3 Qc5 Bc4 Qf5 Nc3 Qh7 Nd5 Ka7 b8N Kb7 Nd7 Rc8 N5f6 Rg7 Re2 g2 Ne5 Rg5 Ng8 Rg3+ Kf2 Rb3 Ngf3 Bd5 Ng5 g1B+ Kg2 Be3 Kf3 Bc6 Qc1 Ba7+ Qc3 Bd5 Rf1 Bc6 Rg2 Bd5 Ke2 Bc6 Qa1 f3+ Kd1 f2 Ke2 Be3 Kf3 Ba7+ Kf4 Bd5 Bd6 Bc6 e7 Bd5 e8B Bc6 Re1 f1B B6e7 Bd3 Be6 Bc2 Rd1 Bg7 f8Q Nf7 Kg4 Nh8 Qf5 Bf8 Rc1 Kb8 Rcg1 Ba8 Rf1 Kb7 Qf2 Rc3 Qe3 Rb3 Rf5 Qc4 Re2 Bd3 Rh2 Qc5 Nd7 Qe5 Re2 Rc1 Rg2 Qc7 Ne5 Bc2 Qc5
k1KRbq1N/5PR1/2pR1r2/4Bp2/p2Q1P2/1r2RNrn/2P1BQ1r/2N1n1q1 b - - 0 2 legal: proof: e4 b5 d4 f5 a4 g5 axb5 e5 dxe5 Ne7 h4 gxh4 e6 Bg7 e5 Bf6 exf6 Ng8 Ke2 a5 Kd3 h5 Kc4 d5+ Kc5 a4 b4 d4 g4 d3 f4 d2 g5 h3 f7+ Ke7 g6 h2 g7 h4 b6 c6 b5 h3 b7 Qa5 Nc3 Kd8 Kd6 Rh6 b6 Nd7 b8R Ngf6 g8N Nc5 b7 Ng4 Na2 Nf2 Bb2 Ncd3 Nf3 Ne1 Be5 Rf6 Rg1 h1R Be2 h2 Rg7 Rg1 Ne7 h1R Ng6 Rg3 Nh8 Nh3 Nc1 Rh2 Ra3 Qa7 Rd3 Qg1 Re3 Ra6 Ra8 Ra7 b8Q Rb7 Qa7 Rb5 Qd4 Rb3 Ra5 Bd7 Rd5 Kc8 Ke7 Kb7 Kd8 Rb2 e7 Rb3 e8R Ka8 Rf8 Be8 Rd6 Ng2 Qf1 d1Q Kc8 Ne1 Rfg8 Qd2 Qf2 Qb4 Rd8 Rh6 Rg6 Qf8 Rgd6 Rf6 Rg7
3q3r/p2q1QBN/QnqP1Rb1/2n2pB1/5P2/Q1KBq1Pk/RN3p2/B2r4 b - - 0 1 illegal: No proof kernel
Q1K2Nn1/Q1bQp3/kPBb1r1R/4r1bP/bQ3qN1/q1B2pR1/p4P2/2B5 b - - 0 1 illegal: No possible last move, all moves rejected
2R2rRN/2B2kr1/R1Bq1b1K/P2Np2P/2qRP1q1/1p1p1Q1q/4n2Q/3nB3 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 a5 b4 b6 f5 Bb7 d4 axb4 dxc5 e5 Na3 Bd5 Nb1 Be6 fxe6 Rh7 Qd2 Rh6 Qd1 Rh8 Kf2 f5 Kg3 d5 e4 g5 h4 d4 c4 g4 a4 b5 c6 b3 c7 b4 c8Q b2 c5 b3 c6 Ra7 h6 Rc7 h7 Nh6 h5 Bd6 e7 f4+ Kh4 f3 Kg5 f2 Nc3 b1Q Bd2 g3 Qf3 g2 Nd5 Ba3 Bb5 f1Q Ne2 Qg1 Qch3 Rf8 h8B Qh2 Rd1 Qd3 Bf6 Qc4 Nef4 Kf7 e8R Qd6 Bd8 Nf5 Be1 g1Q+ Qhg3 Bc5 Ng6 Qh3 Rd3 Rb7 c7 Nc6 c8R Ra7 Bc7 Bb4 Ndf4 Ne3 Kh6 Nd1 Qh2 Qgg4 Red8 Bc5 Rd2 Ba3 Rg2 d3 Nd5+ Qf5 Rg4 Nd4 Bc6 Ne2 Rg3 Qdf6 Rd6 Qfg4 a5 Bb4 Ra4 Bc5 Rg2 Bf2 Rb4 Bh4 Rb6 Rb7 Ra6 Ra7 Ne3 Rb7 Rd4 Ra7 Nd5 Rb7 Nf4 Qd6 Nd5+ Bf6 Nge7 Qge6 Rg8 Qeg4 Ng6 Ke6 Bd8 Rg7 Bc7 Kf7 Nh8+
1b2B1r1/4rq1q/P3q1pP/Kn2Qq2/2NR3N/1B2p1Q1/1B1RP1Bp/1k1b2Q1 b - - 0 1 illegal: No proof kernel
2N1B1Q1/P6R/qppk4/2pBrn1P/RNP5/K2nB1qb/3rQ1R1/3nR1n1 b - - 0 1 illegal: No proof kernel
2Q1r3/RP1Pqn1n/3BrN2/4B1q1/1KpNrRB1/1bPp1B1Q/7p/2rk1Q2 b - - 0 1 illegal: No possible last move
3nB1NR/p2b3Q/Pn4K1/3r1n2/1Bkp1pQ1/Rq3Q1q/R1PP3b/1nR4N b - - 1 2 legal: proof: g4 e5 h4 c5 b4 Qe7 bxc5 Qd8 f4 f5 gxf5 exf4 Nh3 g5 Rh2 b5 Rh1 g4 Ng1 Na6 Bh3 Rb8 Bf1 Rb6 Nc3 Rg6 Nb1 Rg5 hxg5 Ke7 Rh3 Kf7 Rh1 Ke8 Kf2 Ke7 e4 d5 a4 h5 a5 b4 g6 b3 f6+ Ke6 e5 d4 c6 Kd5 e6 g3+ Kf3 h4 Kg4 b2 Kf5 g2 c7 h3 f7 h2 g7 Bd6 f8R Be5 Nh3 g1N Nc3+ Kc5 Qf3 b1N Nf2 Bd7 c8Q+ Nc7 a6 Nh6+ Kg6 Nh3 g8Q Ng5 e7 Nf5 e8R Nf7 Bb5 Bf6 Re3 Bh4 Ra2 Bg3 Nd5 Rh5 Ne7 Kb4 Rc3 Nd5 Qh7 Nb6 Rh8 Qf8 Rd1 h1Q Rca3 Bh2 Ng8 Nd8 Ba4 Qf1 Nh1 Qh3 Bb2 Qe7 Rc1 Qe3 Bc6 Qd3 Bc3+ Kc4 Bb4 Qb3 Qe4 Nd6 Qf3 Rd5 Ba4+ Bc6 Qe6 Bd7 Qeg4 Nf5 Bc6 Be6 Be8 Bc8 Ra5 Bd7 R5a3
Nqbbb2q/Q1p3Bn/3QR2n/1QQ2P1B/b3pp2/1R4Nr/2P1P2k/4KB2 b - - 0 2 illegal: No proof kernel
1R3Bn1/n2PbRq1/2nk3N/2pp4/K2N1q1Q/p1PPBQ2/1N3Q2/2rQnb2 b - - 0 2 legal: proof: f4 d5 g4 a5 a4 h5 e4 b5 axb5 g5 e5 Ra6 Bh3 Rd6 exd6 Bd7 fxg5 Rh6 g6 Bc8 g5 Rh8 Bg4 hxg4 b4 Kd7 h4 c5 c3 f5 h5 e5 b6 f4 g7 f3 d3 g3 Kd2 e4 Kc2 f2 Kb3 f1N h6 g2 h7 e3 b5 e2 g6 e1Q b7 Qde8 b6 Na6 b8Q Q1e6 b7 Nb4 Nf3 g1N Nd4 Q6e7 Nd2 Qe6 Nc4 Qf6 Ka4 Be7 Rb1 Qff8 Nb2 Nf3 Be3 Ng3 Rf1 Ne1 Rf7 Nc6 Qa8 Ne2 b8B Na7 Bc7 Nh6 g8Q Qg7 Qf8 Ng8 Qb8 Qd8 Qbb3 Qe8 Qbc2 Qd8 Bb8 Qc7 Qcd2 Nc1 Q2e2 Na2 Qf2 Nb4 Qff3 Nbc6 Qf2 Qh6 g7 Qf4 Qff3 Nf6 g8N Qb7 Ka3 a4 Nh6 Rg8 h8Q Rg1 Qf2 Ng8 Qf6 Qc7 Q6h4 Rf1 Nf3 Ke6 Nd4+ Ke5 Qff3 Bh3 d7 Kd6 Qg7 Qe5 Qg1 Qg7 Qgf2 Rg1 Ka2 a3 Kb3 Ke5 Ka4 Qd6 Bc7 Bf1 Bd8 Qdf6 Q2e2 Qf4 Qef2 Bf8 Bf6+ Kd6 Bg5 Be7 Bf6 Qgg3 Bg7 Rh1 Bf8 Qg7 Qg1 Rh2 Qgg3 Rc2 Qgf2 Rc1 Nc4+ Kc7 Rb5 Rc2 Nb2 Rc1 Rb6 Kd6 Rb8
1B1qBb1n/4r1np/1B2R2B/6P1/1prQ2qP/NP2rNp1/2RKQ1R1/2r2k2 b - - 0 2 illegal: No possible last move, all moves rejected
2qq1N2/1q1QBN1B/1q2B2p/1r4RR/3p2r1/2p4P/P2P1b1K/QBnb1kQ1 b - - 0 2 legal: proof: c4 b5 f4 e5 cxb5 a5 b4 axb4 g3 f5 fxe5 f4 g4 Nc6 Bh3 Nd4 Bf1 Nf5 gxf5 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Ke7 Kg2 g5 e4 c5 b6 d5 e6 Kf6 e7 Ke5 e8B Kd4 f6 b3 f7 b2 e5 c4 b7 h6 b8Q c3 e6 g4 e7 g3 Bd3 Ra4 Bh7 Bg4 Na3 b1Q Bd7 Nf6 e8B Bc5 f8Q Ne4 Nc4 Kd3 Nb6 Bf2 Qf7 Rb4 Qd6 Rb5 Be6 Rg8 Nh3 d4 Qe1 Bd1 Nd7 Rg4 Ng5 f3+ Kh3 g2 Ba3 g1Q Qg3 Qb4 Nf8 Qc5 Qe7 Qcc8 Nf7 Qb7 Qd7 Qbb6 Bg8 Nc5 Bb4 Nb3 Be7 Nc1 Rb1 Ra5 Rb5 Qb7 Rg5 Rb5 Qee5 Qe1 Bh7+ Qee4 Qf6 Ke2 Qg6 Qf4 Qb1 Qfc7 Qa1 Qa5 Ne5 Qab6 Beg6 Be3 Bb1 f2 Nf7 f1Q+ Qg2+ Qf2 Qg3 Qg1 Rh5 Qf2 Rg1 Qf5 Rg2+ Bf2 Rg1 Q7a7 Kg2 Qfc5 h3 Qcc8 Kh2 Qab7 Qe5+ Re4 Rgg5 Kf1 Qg3 Rg4 Qg1+
2r2Bq1/RK1n1RB1/4pr2/Pp1n1p2/NN1n2n1/2q1PQb1/BBP3Q1/2k1N3 b - - 0 1 legal: proof: g4 a5 d4 g5 b4 axb4 f3 c5 dxc5 h5 Qd3 b6 Qd2 Bb7 gxh5 g4 Qd5 g3 Qd1 Bd5 Nd2 Be6 Nb1 Bg4 fxg4 Rh7 Bd2 Rh6 Bc1 Rh8 Kd2 f5 Kd3 Kf7 Kc4 Ke6 Kb5 Ke5 h4 Ke4 a4 d5 e3 b3 g5 b2 g6 d4 c6 d3 g7 e6 c7 g2 c8N d2 h6 Be7 h5 Ra6 h7 Nc6 h6 Nb8 Bc4 Qd4 Ba2 Nc6 Na7 Bh4 Nf3 g1Q Ne1 Nf6 g8Q Nd7 Qh5 d1N Qg2+ Ke5 Qhe2 Qc3 Qef3 Rf8 h8B+ Rf6 h7 Bg3 Bg7 Nf2 h8B Ng4 Rh7 Kd6 Bf8+ Ke5 Re7 Kd6 Bhg7 Ke5 Na3 b1N Bb2 Kd6 Rf7+ Ke5 Nc8 Ra8 Na7 Nd4+ Ka6 b5 Kb7 Rc8 a5 Nd2 Rd1 Nc4 Ba1 Ncb6 Nb1 Nd5 Rd2 Qh1 Rd3 Qh7 Rd1 Qg8 Rd2 Qa3 Nc3 Qc5 Na4 Qc4 Re7 Qc3 Nc6+ Kd6 Nb2 Kc5 Nb4 Qb3 Na4+ Kc4 Nb2+ Kc3 Rf7 Ne2 Rd4 Qa3 Rc4+ Kd2 Na4 Qc3 Rc6 Kc1 Ra6 Nd4 Ra8 Nde5 Ra7 Nd7 Bb2+
3R1rQB/2pK2bN/3p1RB1/k4P2/1qBnb1p1/P2PB3/2bN3q/1Qbn3Q b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 b5 g4 hxg4 bxa5 b4 Qa4 Ra6 Qb3 Rb6 Qd1 Rb5 cxb5 Ba6 Bc4 Bb7 Bf1 Bc8 Ke2 e5 Ke3 g5 Ke4 b3 Kd5 e4 f4 d6 h4 Kd7 f6 e3 f7 b2 h5 g3 a3 g2 b6 g4 b7 e2 h6 e1Q h7 Qee8 a6 Qe2 a7 Qa6 a8B Qe2 Nh3 g1B Ng5 Bg7 f8Q Nh6 Qg8 Qh2 Bc4 Be3 d3 Nc6 b8Q Nd4 Nd2 b1B Qf1 Bc2 Qb1 Ba6 Bc6+ Kc8 Be8 Nhf5 Bg6 Kd7 Qf3 Qb8 Rf1 Qb6 Qh1 Qb4 Ra2 Bb5 Rb2 Bba4 Ne6 Bb5 Nf8+ Kc8 Rf3 Kb7 Rf2 Kb6 Rf1 Nc6 Ke6 Ka5 Kd7 Ba6 Rf2 Ncd4 Rf3 Bb7 Rb3 Qc5 Rf1 Bf3 Rb8 Qb4 Rd8 Bd5 Qf7 Rg8 h8B Be4 Nh7 Rf8 Qe8 Ng3 Qf7 Nge2 Qg8 Nc3 f5 Bg5 Re1 Nd1 Re2 Bf3 Re6 Be4 Rf6 Be3 Nf3 Bf4 Be3 Bg5 Bg1 Bd2 Be3 Bc1 Nd2
R3B3/1b3RNp/2pP1Q1Q/KB2pbbB/R2q2B1/2Pq1NkP/5r2/b3nn2 b - - 0 2 legal: proof: e4 d5 b4 a5 bxa5 g5 f4 d4 fxg5 Bh3 Ba3 Bg4 Bd6 Bc8 Bf4 Ra6 Be3 dxe3 d4 Ra7 d5 Ra8 e5 b5 Qd2 Ra6 Qd1 Rd6 exd6 Bg4 Qf3 Bh3 Qd1 Bc8 a4 Kd7 g4 f5 h3 e5 a6 f4 a7 f3 a8R b4 g6 e2 Kd2 f2 g5 b3 Kc3 e1B+ Nd2 b2 Kb4 b1B c3 Qf6 g7 Bd3 a5 Bg6 a6 Qf4+ Ka5 Qd4 a7 Na6 Ne4 Nc5 Qc1 Qc4 Nf3 Bb7 Ng3 Ne7 g8B Bf5 g6 Nd3 g7 Qd4 Qh6 Bd2 Nh5 Ne1 Bf7 Bg5 g8B c6 Bb5 f1Q Ra4 Qfd3 Ng7 Bh4 Bh5 Bg5 Bgf7 Rg8 Ne6 Rg6 Rf1 Rf6 Qg6 Bfh6 Ng7 Bc1 Rf2 Bhg5 Qh6 Bb2 Bfg6 Ba1 Bf7 Be6 Bfg6 Nf5 Rf1 Ng3 Rf2 Bc8 Be8+ Kd8 d7 Ke7 Rf1 Bf5 Rf2 Kd6 d8Q+ Kc5 d6 Kd5 Qe7 Ke4 Rf1 Rf8 Qef6 Kf4 Rb8 Bb7 a8B Bc8 Bb7 Rf7 Rf2 Nf1 Ra8 Kg3 B7a6 Qd1 Be2 Bb7 Bab5 Q4d3 Nh4 Qd4 Beg4 Q1d3 Nf3 Qe2 Ng1 Bb1 Qe7 Bg6 Qd8 Qed3 Rf4 Rd7 Rf8 Rf7 Qe7 Rf3 Qf6 Bf5 Rf7 Rf2 Nf3
qqQ4n/2b2QPp/1bp4r/1k5b/1RN3pQ/PRB1r2P/RN1b4/3K1Q1B b - - 0 1 illegal: No possible last move, all moves rejected
5nqq/N1p1Np1N/2P1bBBQ/1RQP1R2/1p1q3R/1K3P2/2r1n2q/1k4bR b - - 0 2 legal: proof: e4 a5 b4 d5 exd5 h5 a4 b5 g4 Ra7 gxh5 Rb7 Nf3 axb4 Ng1 b3 Ba3 b4 Bc1 Rb5 axb5 Qd6 Bg2 Qd7 Bf1 Qd8 d6 Kd7 h4 Ke6 d4 Kd5 Kd2 Ke4 c4 e5 d7 g5 h6 g4 h5 g3 h7 g2 h6 b2 Kc2 Ba6 d5 Bg7 b6 Bb5 b7 Qf6 d8N Nc6 b8R Nge7 c5 Ng6 Bg5 Nf8 Nh3 g1Q Qc1 Rg8 h8Q Qh2 Kb3 Nd4+ Ka2 Ba4 h7 Bd7 Nc6 Be6 Ne7 Qg6 Bg2+ Kd3 c6 e4 Qc5 e3 Na3 e2 Nb5 e1Q Na7 Qc3 Rb5 Kc2 Raf1 Bh6 Bh4 Be3 Ng5 Qd3 Be4 Rg7 Nh3 Rg2 Bf5 Qe4 Ng5 Qd3 Qf6 Qe4 h8R Qd3 Re1 Qe4 f3 Bg1 Bh7 Qg6 Re4 Qg8 Rf4+ Kc1 Qg7 Rc2 Bg6 Ne2 Rf5 Qce5 Kb3 b1Q+ Ka4 Qba1+ Kb3 Qe4 Rh5 Qae5 Nh7 Q4d4 Qh6+ Kb1 Bg5 Qf6 Rh4 Qfh8 Bf6
q2NQNBr/r2qRppb/1b6/n6R/Nrrp1kB1/2RP4/P4NPQ/4K3 b - - 0 2 illegal: No proof kernel
6RQ/3BPBrp/1n1p2R1/pRbr1b1K/rR1PQ1nP/k3Q3/7n/N2n2N1 b - - 1 2 legal: proof: c4 b5 b4 e5 a4 e4 axb5 e3 b6 Be7 b7 Nc6 b5 Bd6 fxe3 Nb8 e4 Ba3 e5 Bf8 b6 Qe7 Ba3 Qc5 Bb4 Qc6 Be7 Qb5 Bf6 gxf6 cxb5 f5 Qc2 f4 Qb3 Bg7 Qd1 Bf8 Kf2 Ke7 Kf3 a5 Kg4 f5+ Kh5 c5 d4 c4 h4 c3 e4 f3 g4 f4 g5 c2 g6 c1N e6 Kd6 e7 f2 e8Q f3 g7 Nc6 b8R Ne5 b7 Na2 b6 Ng4 e5+ Kd5 e6 Ne7 g8B Nc3 Ra4 Ra7 Qe2 Nd1 Bh3 f1R Bf7 f2 Na3 Re1 Qc2 f1N Rb4 Nfh2 Qd3 Kc6 Qe3 Nd5 Nc2 Bc5 Na1 Rg8 e7 Rg7 Qh8 d6 Rb5 Bf5 Rg8 Ra8 Qe4 Rf8 b8Q Re2 b7 Ra2 Qe3 Ra4 Qa8 Nb6 b8R+ Kd7 Rb7+ Kc6 Bg6 Rf6 Bf7 Re6 Rb4 Re5 Rb5 Nf3 Rh2 Rd5 Rg2 Nfh2 Rb4 Nh6 Rg6 N6g4 Rc4 Kb5 Rbb8 Re5 Qae4 Rd5 Rb7 Rb4 Rbb8 Ka4 Rb7 Nc8 Rb5 Nb6 Qg5 Ka3 Qh6 Ra4 Rcb4 Bc8+ Qg5 Nh6 Bd7 N6g4 Bc6 Be6 Bd7 Bf5 Qge3+
N4bQ1/pQ1r1R1k/n2bN3/2BbR1bp/2B1PnP1/2r2N1r/3p2NP/5K1R b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 bxa4 f4 g5 fxg5 Bg7 b4 Bh6 c4 Ne7 b5 Ng8 c5 Qf6 Nf3 Qc6 Ng1 Qb6 cxb6 Bf8 e4 d5 g4 c5 g6 f5 g7 Kf7 e6+ Kg6 e7 a3 e8N c4 b7 c3 b6 c2 Nc3 f4 Rb1 d4 Qf3 d3 Qh3 a2 Be3 a1B Bc5 c1B Nf3 Ne7 Nc7 Nd5 Rb5 Na6 b8N Be6 Nd7 Rd8 Ne2 Be5 b7 Bed6 Nb6 Rd7 b8R h5 Qh4 Kh7 Qe7 Be3 Rb7 d2+ Kd1 Bg8 Nba8 Bf7 Ne6 Bg8 Nfg1 f3 N2f4 f2 Ng2 Bg5 Bc4 f1R+ Ke2 Rf3 Ra5 Rg3 Nf3 Nf4+ Kf1 Rh3 Rc7 Rd8 Qd7 Bf7 Qb5 Rd7 Qb7 Rg8 Nd8 Bd5 Ne6 Bfe7 Rb5 Rc8 Ra5 Bf8 Rb5 Rdd8 Rf7 Rd7 Bf2 Bc6 Re5 Bd5 Bc5 Rb8 Qc7 Rb3 Qb7 Rc3 g8Q+
5nN1/k1BbNKPQ/4pRRp/3R2r1/BQ5B/brnPP1n1/2R2p1b/n7 b - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bb7 g5 Qd6 h5 Qg6 hxg6 Bc8 Kf2 Kd7 Kf3 f5 b4 a5 g7 c5 g6 Kc7 d6+ Kb6 d7 h6 d8R a4 Ra2 c4 Rd5 a3 Qc2 c3 Nh3 e6 Nf2 Bd6 Ne4 Ra5 Nf6 Kb7 b6 Bc7 b5 Ka8 b7+ Ka7 b6+ Ka6 e3+ Rb5 Bb2 Nd7 b8B Nc5 b7 Ne7 g8R Ne4 g7 Bd7 Rg1 Kb6 Rf8 Ng6 Ng8 Ka6 Rf7 Nf8 Rf6 Kb6 Qd3 c2 Rgg6 c1B Nc3 Bd6 Bc7+ Ka7 Ba1 Ra5 Rc2 a2 Be2 Bca3 Bd1 Rb5 Bb2 a1N b8Q+ Ka6 Qe8 Ka7 Qe7 Be5 Qb4 Ra5 Kg2 f3+ Kh3 f4 Kg4 f2 Kh4 f1N Kh5 Ng5 Qde4 f3 d3 f2 Rd4 Ngh7 Nd5 Ng5 Nde7 Bh2 Rd5 Rc5 Qf5 Ne4 Bbe5 Rb5 Bg3 Nc3 Bh4 Rc5 Rg5 Ra5 Qh7 Rb5 Rgg6 Ng3+ Kg4 Ra5 Kf4 Rb5 Ke5 Rc5 Rf4 Rb5 Kf6 Ra5 Kf7 Rb5 Rh5 Rg5 Rff6 Ba4 Qb2 Rg4 Re2 Nd7 Rd5 Rg5 Bc2 Bb5 Ba4 Bc6 Rc2 Bb5 Rf3 Bc6 Nf6 Rb8 Qb1 Nf8 Nfg8 Bd7 Rff6 Rb7 Qb5 Rb6 Qc4 Rb3 Qb4
6Rb/Q1rp2B1/r1N5/P4r1p/1rp3BP/NrP1n1B1/1RQ1qrkN/KB6 b - - 0 1 legal: proof: d4 f5 g4 e5 dxe5 b6 e4 Nc6 e6 Nd4 f3 f4 b4 Nf5 gxf5 Bb7 e5 Be4 fxe4 a5 Qd4 axb4 Qd6 Qb8 Qd1 Qd8 Kd2 Ke7 a4 g5 h4 c5 a5 h5 c3 b3 Ra2 f3 Ne2 c4 Qc2 b2 Nd4 g4 Na3 b1R Rb2 f2 Be2 f1R Rg1 g3 Bg4 b5 Rg2 b4 f6+ Ke8 f7+ Ke7 Rg1 b3 Rg2 Bg7 f8B+ Ke8 e7 Kf7 e8N Kg6 e6 Ne7 e5+ Rf5 Nc6 Nd5 e7 Ne3 e6 Ra6 Nf6 Qe8 Rg1 Rh6 Rg2 Bh8 Bg7 Ra7 Rg1 Rc7 Rg2 Qf8 Rg1 g2 e8Q+ Qf7 Qa8 Qe8 Qa7 Qe7 Re1 g1R Rf1 Rg3 Rg1 Rf3 Rg2 Qe8 e7 Rf2+ Be2+ Kf7 Ng4 Ke6 Nh2 Kd5 Rg4 Qd8 e8B Qe7 Rg5 Rf6 Bg6 Qe5 Qd1 Ke4 Qc2+ Kf4 Nb8 Ra6 Nc6 Rf1 Bg4 Kg3 Bf6 Qe4 Be5+ Kf2 Bg3+ Kg2 Bh7 Qf3 Rg8 Rf2+ Ke1 Nd1 Bh6 Qd3 Bg7 Qf3 Qe2 Ne3+ Kd2 Qe4 Ra2 Rb2+ Kc1 Qf3 Qd1 Qe2 Qd3 Rd2 Kb1 b2 Qc2 Rdd5 Ra1 Rb5 Ka2 b1R Bg6 R1b4 Rb1 Rbb6 Ka1 Rb3 Rb2 R6b4 Qd1 Re5 Bb1 Ref5 Qc2
1QbBQ1n1/p1n1Q2n/p1pN2K1/2rQb3/B1Pb1P1k/R2n1N2/P1nB4/2R5 b - - 0 1 illegal: No proof kernel
3Q1K2/R2p1BQ1/Q5Nq/1N3R2/B1r1bQ2/2rqBpp1/kP1P1bP1/1qbq4 b - - 0 1 illegal: No proof kernel forced: bxDB
R1n3K1/6RN/5r2/n2BPb1B/q3P1BB/RQ2ppp1/1p1P1N1r/b1b1Q1k1 b - - 0 1 illegal: No proof kernel
1r5B/r2kN1B1/2npQ3/1Qr1PpK1/NbN5/1pnR1B1N/P1p1P3/q3R2b b - - 0 1 illegal: No proof kernel
1R1N4/1b1n1nRK/Pk1Q1r2/pN2pBp1/3qP3/Bp6/1P3br1/N1r1QNB1 b - - 0 1 illegal: No proof kernel
RR1b1r2/5NQ1/p2Pn3/2bN1Q1k/B1r1P3/n3pbB1/q1P2pRp/Q1Q4K b - - 0 1 illegal: No proof kernel
1k1B4/n2Qn2p/2q1Q2P/N1Bp1Q1K/1b1P2n1/r2pNRP1/bp2B3/r3R2B b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 c5 d4 g4 Qd3 g3 fxg3 c4 g4 cxd3 g5 Qb6 Nf3 Qc7 Ng1 Qd8 Kf2 e5 Kf3 b5 Kg4 b4 h4 e4 a4 d6 c4 Kd7 f6 Kc7+ Kh5 e3 g3 e2 a6 e1N a7 b3 f7 b2 a5 Ba6 g6 Nh6 g7 Qe8 g8Q Qe3 c5 Nc6 Nc3 Ne7 c6 Qe6 Nf3 Qc4 Nd2 Rb8 a8B Rd8 Nb3 Qb5+ Bg5 Nc8 Nd5+ Kb8 c7+ Ka7 Ne3 Nf5 Be2 Be7 f8B Bb7 a6 Re8 Qe6 Ng2 Raf1 Bd5 Rf3 Qc6 Na5 Ba2 Re1 Rg8 Bfh6 Bf8 Bd8 Nfe7 Qf5 Qb5 Be4 d5 Bf4 Rh8 Bd6 Qc6 Bc5+ Ka8 a7 Rg8 Nec4 Ne3 Qd7 Ng4 Ne3 Rg6 Qf5 Qb7 Qd7 Rb6 Qe6 Rb3 Qf5 Ra3 Qd7 Nd6 Qe6 Nb5 c8Q+ Qb8 Qcd7 Qb6 Rf2 Qa6 Bh1 Qd6 Rf3 Qc6 Bdb6 Rc8 Bd8 Rb8 Kg5 Rb6 h5 Ra6 h6 Nc8 Bcb6 Bb4 Bc5 Ne7 Kh5 Bc4 Qf7 Ra1 Qff5 Ba2 Nac4 Ra3 Qde6 Kb7 Na5+ Ka6 a8Q+ Na7 Bdb6 Ne5 Qd8 Ng4 Nb3 Kb7 Qdd7+ Ka8 Na5 Kb8 Bd8
2nK1k2/7p/1Q4pP/B3Nqn1/2rpNP2/p1R1Bn1b/B2R2P1/NQ3brN b - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 a4 c5 d3 e6 d4 cxd4 axb5 a4 Qf3 Bc5 Qg4 Bb6 Qd1 Ba5 bxa5 Kf7 Bh6 Ke7 Bc1 Ke8 Kd2 d5 Kd3 g6 c4 a3 f4 e5 h4 Kf8 a6 Nc6 h5 Ke7 f6+ Kf7 b6 Na7 h6 Nb5 c5 Nd6 c6 Qe7 a7 Nc4 b7 Qb4 b8N Ke8 f7+ Kf8 c7 Ne3 Nc6 Qe1 Ra2 Be6 c8N Ng4 Be3 N8f6 Nh3 Nd7 Nd6 Nh2 Nd2 Nb6 Nb3 Re8 a8Q Qa5 Qb1 Nf3 Rd2 Nc8 Qb8 Ng5 Nf2 Bh3 Qb6 Re6 Na1 e4+ Kc2 d3+ Kb3 d4 Kc4 Qf5 Ne5 Re7 Kb5 Rc7 Ka6 Rc4 Kb7 Rc1 Be2 Rg1 Kc7 Rg8 Kd8 Rg7 Rb2 d2 Bc4 d1B Rd2 Be2 Ba2 Bf1 Rh2 Rg8 Nh1 Rh8 Bf2 e3 Ne4 e2 Be3 Bg4 Rh3 e1N Bf2 Rg8 Rc3 Nef3 Be3 Bh3 Kc7 Ke7 f8B+ Ke8 Bb4 Rg7+ Kb8 Rc7 Ba5 Rc4 Kb7 Kf8 Kb8 Ra4 Kc7 Rc4+ Kd8
B1rb1k1B/1n2rPn1/4Rp1K/q1p3RP/1rRNQ2Q/3P1R2/N4p1p/3Q1b2 b - - 0 1 illegal: No proof kernel
1RK1bnQ1/R4Ppp/1P2k1B1/4B1PN/NRpQ1p2/2N2r1q/1Nn5/r1b2r2 b - - 0 1 illegal: No proof kernel
nb4b1/Brk2p2/2P2B2/qR1p3K/Q4P1B/NRN2P1p/pR2n1Q1/B2r2n1 b - - 0 1 illegal: No proof kernel
4nr1q/1nRP4/1pRkp3/pb3Q1R/B2P1R2/r1BN1n2/N1Pp2Q1/1KQ3b1 b - - 0 1 illegal: No proof kernel
5N1Q/2P1r1n1/P3B3/nb2p1p1/1R1Rp3/1rp1QqBP/1bB1N2k/1B2KQb1 b - - 0 1 illegal: No proof kernel
1BBR4/P1pb1Pb1/r3QP1Q/1r2n1K1/2B1qN1p/Bp1Q2N1/nk3p2/1b3R2 b - - 0 1 illegal: No proof kernel
Bb4k1/pRp1Nb2/1NR3nB/2P1BB1p/Q1N3p1/rrQ5/PP3q2/K1n2r2 b - - 0 1 illegal: Other
1N3Q1N/1RBbq1b1/3Bp1N1/B2P2n1/2rP4/KP1Q2rB/pR1q1p1p/6nk b - - 0 1 illegal: No proof kernel
N1rbBq2/N2Q1N1P/3R2P1/1k3p2/R2n1pQ1/3p3n/p2P2K1/1qrb1BBN b - - 0 1 illegal: No proof kernel
R3Rbnr/2p4q/qkB1rB1p/Np1N4/1P1N4/NbP1pn2/BP6/KQ5Q b - - 0 1 legal: proof: e4 f5 h4 e5 a3 g5 hxg5 Qe7 d4 fxe4 dxe5 Qb4+ axb4 Ke7 Qd4 Kf7 Qd1 Ke8 Kd2 Kd8 g4 d5 f4 a5 e6 b5 g6 d4 e7+ Kd7 e8B+ Kd6 f5 d3 f6 h6 c3 a4 g7 a3 g5 a2 g6 Ra4 f7 Be7 f8Q Nd7 Qf5 Kc6 Ne2 Bc5 Nd4+ Kb7 Na3 Ne7 g8N Ka7 g7 Kb7 Nf6 Nc6 g8N Kb6 Ne7 Nce5 Nec6 Ra6 Na5 Bf8 Bg2 Bb7 Bf7 Bd5 Re1 Bc4 Qdh5 Nf3+ Kd1 d2 Kc2 Be6 Qh1 Bc4 Ng8 Nf6 Ne7 Ng8 Nd5+ Ka7 Be8 Re6 Bc6 Ng1 Bf3 Ka6 Bh5 Nf3 Bf7 Ka7 Rb1 a1Q Qg6 Qa2 Ra1 Qb3+ Kb1 d1Q Ra2 Qdc2+ Ka1 Qa4 Bg5 Bb3 Bf6 Qd3 Re2 Qc2 Qgg1 Qd3 Qb1 e3 Rg2 Qh7 Rg4 Rd6 Re4 Ka6 Re7 Re6 Re8 Ka7 N5c4 Qa6 Na5 Re4 Be6 Re5 Bf7 Re6 Ne7 Qc8 N3c4 Re4 Nb7+ Ba4 Bfd5 Re6 Ra3 Kb8 Ra2 Bc2 Ra6 Bd1 Na3 Ba4 Ba2 Bb3 Rb6 Ka7 Nd5 Qa8 Na5 Qc8 Rb8 Qb7 Ne7 Qa6 Ra8+ Kb6 Nd5+
nbQ3n1/1pN1RK2/Q2QrR2/p1q1P1B1/p2k3r/1P1P2QN/4B1p1/N1qb4 b - - 0 1 illegal: Other
1R6/1b2q2B/5nQ1/n1BPr2p/N1kp1npN/P2bpRNP/K2R2R1/5Qb1 b - - 0 1 legal: proof: e4 c5 g4 d5 b4 f5 gxf5 b5 d3 a5 d4 axb4 dxc5 d4 Ke2 Ra6 Kd2 Rd6 Ke1 Rd5 exd5 Bd7 Ne2 Be6 Ng1 Bc8 Kd2 Kf7 c4 g5 Kc2 e5 Kb3 h5 f4 e4 h3 e3 c6 g4 f6 Bg7 c5 Bf5 c7 Qd6 c8Q Qe5 c6 Qe6 c7 Nc6 Bd3 Rh7 Qa6 Qe4 c8R Qe7 Rb8 Bc8 f5 Bb7 Ne2 Na5+ Kb2 b3 Rg1 b4 Nbc3 Bh6 Qf1 Bf4 Rg2 Bh2 Na4 Bg1 Ng3 Rg7 Kb1 Rg5 Ba3 b2 Rd2 Bc8 Qd6 Kf8 f7 Nf6 Kc2 b1B+ Kb2 b3 Bc5 Bc2 a3 Bb1 Be4 Bc2 Rad1 Bd3 Ka1 b2+ Ka2 b1N Rg2 Rg6 Rdd2 Nc3+ Kb2 Ne2 Ka2 Rg5 Qc6 Kg7 f8N Kf7 Ng6 Bb7 Nh4 Nf4 Qd6 Ne8 f6 Re5 Nhf5 Kg6 f7+ Nf6 f8R Bb5 Bb1 Bd3 Nh4+ Kg5 Nf3+ Kg6 Ne2 Kf5 Nh4+ Ke4 Bc2 Nd7 Rf5 Nf6 Qb6 Ng6 Rf3 Nf4 Qe6 Qd6 Qe8 Qe7 Qg6+ Rf5 Qf7 Re5 Bb3 Bb5 Bc4 Be8 Qg7 Bg6 Bb5 Bf5 Be8 Bh7 Bf7 Bg6 Bg8 Bf5 Bh7 Bg6 Rc2 Kd3 Rd2+ Kc4 Ng3+ Bd3 Qg6
q3r3/1RKpP1Q1/N3N1P1/Q2P3b/1RRn2nr/NrB1pB2/3pkNp1/5n2 b - - 0 1 illegal: No proof kernel
Q4Qbr/BP3R2/1ppK1p2/R3N1kb/1p1bQ1r1/3B1R2/1P1N1P1q/1Q2r2n b - - 1 2 legal: proof: d4 e5 dxe5 h5 g4 b6 gxh5 Nc6 c4 Na5 c5 Nb7 c6 a5 cxb7 Rb8 Qd4 Ra8 Qb4 axb4 Kd2 Ke7 Kd3 g5 Kc4 f6 Kd5 d6 h4 g4 a4 g3 e4 g2 e6 Nh6 e5 Rg8 a5 Bg7 a6 Rb8 a7 Qe8 a8Q Qf7 Ra5 Rh8 Bf4 Rd8 Bd3 Rd7 Nf3 g1R Nbd2 Rg4 Rh3 Nf5 h6 Ng3 h7 Bh6 h8Q Qh7 h5 Nh1 Qg7+ Ke8 e7 c6+ Ke6 Bg5 h6 d5 Bh2 Rc7+ Kd6 Be6 Qg6+ Bf7 Bf4 d4 Rg3 Qh8 h7 Rcc8 Qf5 Bg8 Qe4 Kf7 e8Q+ Kg7 e6 Kh6 e7 Rc7 Be5 Be3 Qf8+ Kh5 e8R Re7 Bf4+ Re5 Re7 Rc8 Ba6 d3 Rf7 Bd4 Bb5 Ree8 Ne5 Re7 Rf3 Kh4 Nb3 d2 Bd3 d1B Nd2 Rce8 Bh2 Kg5 Bg3 Qg7 h8Q Qh6 Qhh7 Qh2 Qh3 Rc8 Qf1 Be2 Qb1 Ree8 Rc7 Re7 Rd7 Rce8 Rc7 Rh7 Rd7 Rh8 Rf7 Be3 Ng6+ Re5 Qf4+ Kh5 Kc7 Bd4 Re3 Rgg5 Kd7 Rc5 Qe4 Rc1 Bb8 Re1 Ne5 Rg2 Ke6 Kg5 Kd6 Bh5 Ba7 Rg4 Rf3
1r6/QB1N2N1/2Qp1n1r/bB3p1p/q2r1QN1/P2Pn2K/RN3PpR/2k4n b - - 1 2 illegal: No proof kernel
1Q3n1B/b6N/3p1q2/1BPRp2p/1K2nPB1/n1RPkrQb/p1B5/b4RN1 b - - 0 1 legal: proof: e4 c5 h4 f5 b4 g5 hxg5 fxe4 a3 b5 bxc5 a5 a4 b4 Rh4 Ra7 Rh6 Rb7 Rh1 Rb5 axb5 Ba6 Bc4 Bb7 Bf1 Bc8 c4 Kf7 g4 Kg6 f4 h5 c6 e3 b6 e6 c5 e2 c7 b3 b7 d6 Bb2 a4 Nc3 a3 Ne4 a2 Rc1 Bg7 Nf6 Rh6 Rc3 Qe7 Nh7 Nd7 b8Q Bb7 c8B Bg2 Ba1 b2 Qdb3 Qf6 Qa3 Kf7 g6+ Ke7 g5 b1N Bb2 Nf8 Ba1 Bh8 g7 Bh3 Qab3 Na3 g6 Qe5 Bd7 Nf6 g8B Ne4 g7 Qf6 Bf7 Rg6 g8R Rg3 Rg5 Re3 Rd5 Rf3 Bfe8 Bg7 Bb5 Bh8 Bed7 Kf7 Bd3 Kg6 Bc2 Bg7 Rdd3 Kf5 Rd5+ Kg4 Bb5 Kg3 d3 Nf2 Kd2 e1B+ Kc1 Bh8 Kb2 Ne4 Be2 Kf2 Qc4 Bd2 Kb3 Ke3 Ka4 Bg7 Qb4 Be1 Qb1 Bd2 Qe1 Bh8 Qg3 Be1 Rb3 Ba5 Rc3 Bb6 Kb4 Ba7 Qh2 Rf1 Bg4 Rf3 Qg3 Nf2 Rc4 Qe7 Ne2 Ne4 Rf1 Bg7 Bc3 Qg5 Ng1 Qh6 Be1 Ba1 Bc3 Qg5 Bg7 e5 Bh8 Qf6 Rc3
3Q1qkB/1K2N2N/n3n3/QRb1p3/q2pB1B1/n1p4p/1P1P1Q1P/rR3rQ1 b - - 0 2 illegal: No proof kernel forced: bxDB
3n1b1N/2P3p1/r2pn1P1/1K4RB/6pP/qQBkq2Q/4qpN1/B2B1RQr b - - 0 1 illegal: No proof kernel
3rR3/3bKN2/1rNQpp2/B3RP2/q1nr2N1/b2B1R1P/3qPppQ/3R1k2 b - - 0 2 illegal: Other
3Bn1R1/P4q2/1K1Rp1Qp/RnN1p3/5p1R/PBqbbP1Q/2k5/4qrNB b - - 0 1 legal: proof: e4 a5 b4 b5 bxa5 g5 c4 b4 h4 d6 e5 dxe5 hxg5 Ra7 Nc3 Rb7 Nb1 Rb5 cxb5 Qd5 Bb2 Qd4 Bc1 Qd8 Ke2 Kd7 Ke3 Kd6 d4 Kd5 g4 c5 g6 h6 a6 c4 g7 c3 f3 b3 g5 f6 g6 b2 a7 c2 b6 Qd6 b7 Na6 b8Q Qd8 Nd2 b1Q Ne4 Qe8 Bg2 Kc4 d5 Qb2 d6 Nc7 d7 Qb4 d8R Ba6 Qd7 Nb5 Qbd6 Qf7 Nc5 Kc3 Rh4 f5 Bh1 Nf6 g8B Qb1 g7 Ne8 Qg6 f4+ Ke4 Rh7 Be3 Qe1 Qh3 c1Q Rd6 Kb2 Kd3 Qec3+ Ke4 Kc2 Bd4 Q1e1+ Be3 Qf6 Kd5+ Qf5 Kc6 e6 Kb6 Rh8 Bh7 Rg8 Bd2 Na3 Be3 Bd3 Bd2 Qf7 Be3 Rh8 g8R Nb5 Bd2 Qb2 Ba5 Qbc3 Qf6 Be7 Be4 Rh7 Bd5 Rg7 Bc4 Rg2 Qg6 Rf2 Bb3+ Kb2 Ka6 Rf1 Bd8 Bf8 Kb6 Be7 a3 Bf8 Rd1 Be7 Bd5 Kc2 Rb1 Bf8 Rb4 Be7 Ra4 Bf8 Ra5 Be7 Rg4 Bh4 Bc4 Bf2 Rh4 Be3 Bb3+
4bnnq/p4P1B/5RN1/R2pKp1q/1Qp3QB/1NRQ1Pr1/4P2r/3nk2Q b - - 0 1 illegal: No proof kernel
4K2Q/1RRpnB2/2B3p1/p1QR2Pq/nPpP4/QR1rb2N/k3b2q/4N1q1 b - - 1 2 legal: proof: f4 b5 a4 c5 axb5 a5 b4 e5 fxe5 Qe7 b6 Qg5 b5 Qd8 c3 Ra7 g3 h5 Bb2 Rc7 g4 Rc6 Ra2 Rd6 Ra4 Rd4 Ra1 Rb4 cxb4 h4 Bd4 Ba6 Bf2 Bc8 Bg3 hxg3 e4 Ke7 Ke2 Ke6 Kd3 f5 Kc4 g6 d4 g2 h4 f4 h5 f3 g5 f2 b7 Be7 h6 Qe8 b6 Nf6 h7 Nc6 b8Q Qd8 b7 Na7 Ra3 Nc6 Qc7 Na7 b8R Rf8 h8Q Rg8 Rb3 Nb5 Nh3 g1Q Bg2 Qh2 Na3 Rf8 Qc1 Qg3 Nc2 Bd6 Rb7 Qh2 Ne1 Nc3 Qc6 Na4 Kb5 Ke7 e6 Ng8 e5 Rf3 Qb6 Rc3 Bc6 Rd3 Kc4 f1Q Kd5 Qfg1 Qc7 Kf8 e7+ Kf7 e8B+ Ke7 e6 Bf4 Qce5 Be3 Bf7 Qf8 Qc7 Qh6 Qb6 Qh5 Qa7 Qgf2 Rf1 Qfg3 Rf5 Qgg1 Rc7 Ba6 Re5 Kf8 Kd6 Bb5 Rb7 Ba6 Kc7 Ke7 Kc8 Kd6 Kd8 Bb5 e7 Ba6 e8R Ne7 Bh1 Bc4 Rd5+ Kc6 Rc7+ Kb5 Rf8 Nb6 Ke8 Ka4 Rb2 Ka3 Rb3+ Ka2 Rg8 Ba6 Rf8 c4 Rb7 Na4 Qc5 Bb5 Re5 Qgg3 Kd8 Bc6 Re8 Ng8 R8e6 Bg1 Ke8 Bf3 Rc6 Ne7 Rcc7 Be2 Bc6 Be3 Rd5 Qgg1 Qa3#
1k1N3Q/1bpp1B2/2q5/r3b1Kn/1NP4Q/1p1PPp2/2rqRN1Q/r1B2Q1R b - - 1 2 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 a4 b4 Nh3 Nc6 Ng1 Nd4 b3 Nb5 axb5 a4 Ra3 axb3 Ra2 Nh6 Ra1 Ng8 Ra5 Rb8 Kf2 f5 Ke3 g5 h4 b2 b6 g4 Kf4 g3 e3 b3 h6 g2 h7 Ra8 b7 Bb4 b8N Ke7 e6 Kd6 h5 Nf6 h6 Rg8 e7 Bc5 e8Q Ba6 Qeh5 Ba7 Qh2 Bd4 Na3 b1R Bc4 Ra1 Nh3 g1Q d3 Qe1 Bf7 Rg2 c4 Qg8 Nc2 Qg6 Ra2 Be5+ Kf3 f4 Nc6 Bc8 Nd8 Ra5 Nb4 Kc5 Qe2 Kb6 Qf1 Ka7 Rb2 Rd2 Nf2 Kb8 Rc2 Nh5 Ra2 Qc6+ Kg4 f3 Kg5 Ng3 Rc2 Bb7 Rb2 Rd1 Re2 Qc3 h8Q Qc2 h7 Rd2 Qg8 Qd1 Qf8 Rc2 Qfh6 Qd2 Q6h4 Nh5 h8Q
3q1BQN/p7/Q4QK1/Q1pqB1b1/Pn3Pb1/R2p1qr1/2p1P1R1/N2k1B1r b - - 0 1 legal: proof: g4 b5 d4 g5 c4 e5 dxe5 f5 h3 Nc6 h4 Nd4 gxf5 bxc4 Bd2 g4 Be3 Ne6 Bc1 Ng5 hxg5 Be7 Nc3 Bd6 Nb1 Bf8 Kd2 Kf7 Ke3 d5 Kf4 c5 b4 h5 a4 c3 g6+ Ke7 Kg5 g3 f4 d4 g7 c2 e6 Kd6+ e7 Kd5 f6 Kc4 e8Q Kb3 b5 d3 b6 g2 b7 h4 b8Q+ Bb7 Qd2 h3 Nf3 h2 Ra3+ Kc4 Qd6 Be7 Nh4 Bc8 Qf8 Bg4 Qa5 g1Q Ng6 Qd4 Bb2 Qd5+ Be5 Rh4 Rg1 h1Q Rg3 Qhf3 Nh8 Rh1 Kg6 Rc8 f7 Bg5 Rg2 Nf6 g8Q Rc7 Qc6 Re7 Bc7 Re3 Nd2+ Kd4 Nb3+ Kc4 Qab5+ Kc3 Na1+ Kd2 Qa5+ Kd1 Qcb6 Qe6 Qfg7 Nd5+ Qf6 Nb4 f8B Qed5 Qbc6 Qh3 Qca6 Rg3 Rg1 Qhg2 Be5 Qgf3 Rg2
KQ1b4/1r2qpNp/QBR1p3/4B1P1/6pQ/2QrRP2/b2N3P/R2bqk1n b - - 1 2 illegal: No proof kernel
r2b4/1b1N1K2/Qb2p3/Nnq2PB1/2BPkB2/pR3pR1/1pB1P2q/2Q1R2n b - - 0 1 illegal: No proof kernel
2q5/B3RQ2/Pbp1B1p1/pqQnn1k1/3N4/qrNpN1B1/2PP2bR/4K1B1 b - - 1 2 legal: proof: e4 a5 a4 f5 exf5 h5 g4 b6 gxh5 Ra6 b4 Ra8 b5 Ra6 bxa6 b5 Qe2 bxa4 Qg4 Rh7 Qd1 Rh8 f4 Kf7 h4 Kf6 h6 d5 h7 e5 h5 e4 h6 d4 Nh3 e3 Nc3 e2 Nf2 d3 Ba3 c6 Bh3 g6 Bc5 a3 Ba7 a2 Ng4+ Ke7 f6+ Ke6 f7 Kf5 Ne3+ Kf6 f5 Ne7 Rh2 Kg5 f6 Qe8 Be6 Rg8 h8B Qd8 h7 Nd7 Qc1 Rg7 Qa3 Ne5 Qc5 Nd5 Rb1 Be7 f8N a1Q f7 Qa3 Rb7 Bd7 Rc7 Qc8 Rb7 Rg8 Bg7 Bd8 h8B Bb6 Bf6+ Kf4 Bh4 Rg7 Bg3+ Kg5 Rc7 Rh7 Rb7 Rh4 Rc7 Rb4 Rb7 Rb3 Bg7 Nc4 Bd4 Ne5 Rc7 Be8 Re7 Bd7 Bg4 Bf5 Bh3 Be4 Ne6+ Kh5 f8Q Bg2 Qf7 Kh6 Ng7 Kg5 Be6 Bh3 Kf2 Bf1 Ngf5 e1Q+ Kg1 Qea1 Kf2 Q1b2 Ke1 Bg2 Nc4 Qa4 Bg1 Qba3 Nce3 Qb5 Nd4
1RQ3b1/P4pP1/4p1r1/p1pk2b1/B1B3n1/1B2nRN1/P1Qr1B1r/2Kn2NQ b - - 0 1 illegal: No possible last move, all moves rejected
Kb1N4/pp1N4/QPB2nRr/B3p1B1/4Pr1p/1n1n2k1/Pb3R1r/1R4RQ b - - 2 3 legal: proof: d4 d5 Kd2 c5 c4 f5 cxd5 c4 g4 fxg4 Kc2 Qa5 h3 g5 Qe1 g3 Kd1 Qc5 dxc5 g2 Kd2 g4 Qd1 g3 Ke1 Bg4 hxg4 Kd8 Nf3 Kd7 Ng1 Ke8 Kd2 Kf7 Ke3 Kg6 Kd4 h5 e4 h4 b4 e6 f4 c3 c6 c2 c7 Kf6 c8Q Rh5 d6 e5+ Kd5 Na6 d7 Rh6 d8B+ Ne7+ Kd6 Rg6 g5+ Kf7+ Qe6+ Kg7 b5 Rb8 f5 Rc8 f6+ Kh7 f7 Rc7 Ne2 g1R Nf4 g2 Na3 Bg7 f8R Rf6 g6+ Kh6 Nc4 Kg5 Nb6 Nb4 Nd7 Ned5 Rb1 Rc3 Rf7 Rh3 Ba5 Rh2 b6 Rf5 Bb5 Nd3 Bc6 Rf6 Qf3 Rf1 Rg1 Rf2 Be3 c1N Bed2 Bh6 g7 Nb3 g8R+ Bg7 Be3 Rh6 Rff8 Nf6 Kc7 Ng4 Kb8 Rf1 Rh1 g1B Qc4 Bf2 Bed2 Bd4 Ka8 Bb2 Ne6+ Kh5 Rf6 Bf8 Qa6 Bd6 Nd8 Bb8 Rg1 Rff2 Qh1 Rf3 Rf4 Nf6 Be3 Rff2 Rf3 Rf1 Bg5 Rff2 Rgc1 Kg4 Rg6 Rf1 Rf5 Kg3 Re1 Rf4 Rf1 Rg4 R5f2 Rf4 Rg1+
1K2Q3/2NpRn1k/pNNP1r2/PrB1Q1r1/2B4r/Rn4bp/P2p3B/1Nq5 b - - 0 2 legal: proof: h4 f5 d4 c5 e4 g5 exf5 b6 hxg5 Ba6 b3 Be2 d5 Bb5 Qd4 Ba4 bxa4 cxd4 Kd2 Kf7 Kd3 Kg7 Kc4 h5 Kb5 e5 f4 e4 c4 h4 g4 e3 g6 e2 a5 e1R g5 d3 c5 Re8 c6 Bb4 c7 Ne7 c8N Kg8 f6 Na6 f5 Bd6 f7+ Kg7 f8N Bg3 f6+ Kg8 f7+ Kg7 Bf4 d2 Ne2 Rg8 Rh3 Rb8 Nd4 Bf2 Nc6 Bg3 Bc4 Nf5 Ne6+ Kh8 f8B Qc7 g7+ Kh7 B8d6 Nh6 Bc5 Ref8 d6 Rf6 Be5 Nf7 Bf4 Bf2 Ra3 h3 Bh2 Bg3 g6+ Kh6 Bcg1 Nc5 Bd4 Rh8 g8Q Nb3 Ka6 b5 g7 b4 Bc5 Rb5 Qe8 Kh7 Nb6 Rg8 Be3 Rg5 Bc5 Rh8 g8Q+ Kh6 Qgf8+ Kh7 Ne5 Qc6 Qfe7 Qh1 Nc7 Qc1 Kb7 a6 Nbd5 Nd4 Ka7 b3 Nb6 b2 Kb8 Nb3 Nc6 Rf1 Nc3 b1R Qe5 Rb2 Nb1 Rf6 Na4 Kg6 Nb6 Rh4 Nc3 Kh7 Rb1 Qc2 Re1 Qc1 Nb1 Nd4 Qf4 Rb5 Re7 Nb3 Qe5
bK2b1N1/1n1R4/1k1N3P/2pq4/P1Rp4/BRQP1R1N/nbBpr1p1/3b3Q b - - 0 1 illegal: No proof kernel
1Q1Rn2q/2pB2pn/2P1b3/1pP2n1P/5N1B/Nk1N1p2/2nRr3/1BKN2Qr b - - 0 1 legal: proof: c4 h5 d4 a5 b4 axb4 f4 e5 fxe5 h4 c5 h3 c6 Bc5 dxc5 Rh5 gxh3 Nf6 h4 Rh8 h5 Ng8 Kd2 Ke7 h4 Ke6 a4 Kd5 e4+ Kd4 a5 d5 a6 f5 e6 b5 a7 f4 e7 b3 e8Q f3 h6 b2 h5 Na6 h7 Bg4 e5 Qe7 e6 Nb8 Bd3 Nf6 Na3 Nbd7 Bb1 Qd6 e7 Bf5 Qb8 Ne8 Rh2 Nf8 Nh3 Qd8 Nf4 Be6 Nd3 Rg8 h8N Nh7 Qh1 Qc8 Kd1 Kc3 Qg1 d4 Rd2 Kb3 Ng6 Rf8 Ra2 Rf4 Ra1 Rh4 Ngf4 Rh1 Ra2 Nd6 e8B Qd8 Bd7 Qh8 Qg8 Re8 a8N Re7 Qb8 Ne8 Nb4 d3 Nb6 Nhf6 Nbc4 Nh7 Re2 d2 Nbd3 Bg8 Rh2 Re2 Ne3 Be6 Rh4 Ka4 Kc2 d1N+ Bd2 Nc3 Nd1 Ne4 Rg4 N4d6 Rg2 Nf5 Ra1 Re4 Be1 Re3 Rd2 Re2 Ba2 b1N Kc1 Ng5 Bh4 Nh7 Nc4 Na3 Bb1 Kb3 Raa2 Nc2 Ra8 Re5 Na3 Re3 Qb7 Re1 Rd8 Re2 Qb8
1bn2qnR/3bk2B/2pppN1P/1pP2Q2/1B1RN1B1/K3PN1n/1n4QN/3r4 b - - 1 2 legal: proof: g4 h5 gxh5 b5 b4 a5 e4 f5 exf5 axb4 Bh3 Ra3 Bf1 Re3+ dxe3 Bb7 Nh3 Ba6 Ng1 Bc8 Kd2 g5 c4 g4 Kc2 b3+ Kb2 d6 f4 e6 a4 g3 h4 g2 a5 Kd7 h6 Ke8 c5 Qf6+ Ka3 b2 a6 Nc6 h7 Qh6 f6 Nge7 f7+ Kd7 a7 Kd8 a8B Kd7 f5 Qf6 h5 Ng8 Qg4 Qe7 f6 Nd4 Nd2 Ne2 Bf3 c6 Ne4 Nc3 Bd3 Na4 Bd2 Ba6 Bb4 Qd8 Rd1 Be7 f8Q Bc8 f7 Nb6 Bb1 Qe8 Rd4 Bd8 Qg3 Bc7 Bg4 Qd8 Nf3 g1N Nh2 Bb8 Qg2 Qe8 Bc2 Kd8 Bd3 Bd7 Bb1 Nc8 Bd3 Nh6 Bb1 Rg8 h8N Nh3 Ng6 Rh8 Ne5 Ng8 Nef3 Rh7 Qg7 Qf8 Qe5 Ke7 Qf5 Rh6 Bd3 b1N+ Kb3 Qe8 f8N Nc3 Ka3 Na4 Nh7 Nb2 Nhf6 Rh7 h6 Rf7 Ra1 Qd8 Kb3 Rg7 Ra8 Qf8 Ka3 Rg5 Qg6 Re5 Qf5 Rd5 Qe5 Qd8 Nf1 Ba7 Ned2 Nb6 Rc4 Rd4 Rc8 Bb8 Bh7 Qe8 Rd8 Nc8 Nde4 Rd1 N1h2 Qf7 Rd4 Qg7 Nh5 Nf6 Rh8 Qf8 Qf5 Ng8 Nhf6
R4K2/pQ1Q1N2/n1r1PqB1/4BRrP/1p1N3k/p1nBpB1N/1P1rb3/4r3 b - - 0 1 illegal: Other
5R2/pP1B4/pqnnpb1P/2rQ1Qkb/1p1N1b2/R4BB1/KP1b4/2B1Q2N b - - 0 1 illegal: Other
1KN1b3/B2p2qb/1N1rN1Bk/1NprP2R/3Pp1p1/2P2b1Q/4R3/b2Q1n1R b - - 0 2 illegal: No possible last move, all moves rejected
3N3B/n1R1rnp1/BN3RqB/2pb2b1/2p1nQ1P/4pKPk/Qn1P4/1B2Q3 b - - 0 1 illegal: No proof kernel
rN2b1R1/1Q1B1R1p/p4P1P/2K2bN1/kpn1bnp1/1rR2b2/PQ6/BQ3R2 b - - 1 2 legal: proof: e4 c5 d4 e5 b4 exd4 bxc5 Qf6 f4 Be7 e5 Bf8 e6 Qd8 g3 f5 Bd2 Qg5 Be3 Bd6 Bc1 Be5 fxe5 f4 Be3 f3 Bc1 Qf4 gxf4 Kf8 Bb2 Ke7 Bc1 Ke8 Kd2 b5 Kd3 d5 c4 g5 h4 a6 e7 Kd7 e8Q+ Kc7 e6 f2 f5 b4 c6 Kb6 c7 Ka5 e7 g4 c5 Nc6 h5 Kb5 h6 Ra7 Nd2 Bd7 c8R Ra8 Nc4 Rb8 Na5 Nf6 Nh3 Rf8 Bb2 Ra8 Ng5 Nh5 Qb1 Ka4 Be2 Rf7 Qh8 f1B e8R Bg2 Rg8 Be8 Rf1 Bf3 Rc7 Rf8 Rf7 Ne5+ Kd2 d3 Ke3 d2 Kd4 d1B c6 Nf4 c7 Bh1 c8Q Nc4 Qb7 Be4 Nc6 Bdc2 Kc5 d4 Nb8 d3 Rf3 d2 Rc3 d1B Qd4 Bcd3 f6 B3c2 Bd3 Bdf3 Qe5 Bf5 Be4 Bd3 Bd5 Bde4 Be6 B8c6 Bd7 Rc8 Qd3 Re8 Rf1 Re7 Qb1 Bb5 Be6 Be8 Ba1 Rd7 Qd4 Rd8 Qf2 Rd3 Qfb2 Re3 Rcc1 Ra3 Rc3 Rb3 Bd7+
3r1rnB/1np3bQ/1k3B2/1B1RN1p1/4Q1Kp/1nQ1p3/P1PR3P/1nb1Q1N1 b - - 1 2 legal: proof: f4 a5 g4 f5 b4 e5 bxa5 d5 Ba3 e4 Bb2 Qf6 Bc1 d4 e3 Qe5 fxe5 dxe3 Ke2 f4 Ke1 Bf5 gxf5 Kf7 Bb5 Ke7 Bf1 Ke8 Ke2 Kd7 d4 Kc6 d5+ Kb5 f6 h5 a6 g5 e6 h4 f7 b6 a7 Bd6 f8Q Nc6 e7 Rh5 e8Q Ba3 d6 Rh8 d7 Na5 Qef7 Rd8 a8Q Nb7 Qb4+ Kc6 Qaa5 b5 Bb2 Rf8 Bg7 Bc1 Na3 Rd8 Qbd4 b4 Nc4 b3 Qde1 b2 Qac3 b1N Ne5+ Kb5 Qa4+ Kb6 Qf5 Rf8 Qh7 Rd8 Qac4 Rf8 d8B f3+ Kd1 f2 Bdf6 Rd8+ Qd5 Rf8 Bb5 f1N Ke2 Nfd2 Qdd3 Nb3 Qd5 Rd8 Qdc4 Nh6 Qd5 Rhf8 Bh8 Na3 Rb1 Ng8 Rb2 Nb1 Qdd3 N3d2 Rb4 Nb3 Rd4 Rde8 Rd5 Rd8 Kf1 e2+ Kf2 e3+ Kf3 Ne7 Qde4 Ng8 Qed2 e1B Kg4 Bg3 Qe1 Bf4 Ngf3 Bg3 Rf1 Bf4 Rf2 Bg3 Ng1 Bf4 Nc6 Be5 Rfd2 Bd4 Be7 Bf6 Ne5 Bg7 Bf6
r7/R3Rbp1/1k4Bn/1p1B1n2/1Q3pPn/2Bp2P1/2QQNP1n/bNb1B1K1 b - - 0 1 legal: proof: a4 b5 a5 c6 h3 c5 b4 Qb6 axb6 cxb4 d4 e5 dxe5 b3 Nd2 a5 Nb1 Ra7 Ra2 Rc7 Ra3 Rc4 Ra1 Rg4 hxg4 Ba3 Bg5 Bd6 Bc1 Bf8 c4 Kd8 e4 h5 e6 f5 c5 d5 e5 d4 c6 a4 b7 Kc7 e7 h4 e8Q d3 e6 a3 e7 h3 Bf4+ Kb6 c7 a2 Qc2 h2 Bd2 f4 Ne2 Be6 c8Q b2 Q8c3 Bf7 Qb4 Nd7 b8B Nh6 Be5 Rg8 Rg1 h1N Bec3 Ng3 Qa8 Ne5 e8B Ngf5 g3 Bd6 Bg2 Ng6 Kf1 Ngh4 Be1 Bc5 Bb7 Be3 Bd5 Bc1 Qd2 Rf8 Qaa4 Rh8 Qac2 Rf8 Na3 b1N Rh1 Rh8 Kg1 Rg8 Bd7 Ra8 Be8 Bg8 Bg6 Bf7 Qdd1 Nd2 Nb1 Nf1 Qdd2 Ng2 Rh5 Ngh4 Rg5 Ne7 Re5 Nef5 Re7 Nh2 Na3 Rg8 Rb1 a1B Rb3 Ka6 Nb1 Ra8 Ra3+ Kb6 Raa7
KbR1r3/4p2R/N1Pqp1b1/1k1p1PQ1/p1n5/P2pQB1Q/3n1BQ1/N2N2b1 b - - 0 1 illegal: Other
1k4nQ/3N3R/1p1Qb2p/p1P1rR2/3B2NP/RnP1BK1B/pq5p/2R1r2n b - - 0 1 illegal: Other
3kr3/1p2RpBP/3p4/1QR1rBQ1/QN3PN1/3n2P1/1nq1p1pn/3QbNK1 b - - 0 1 illegal: No proof kernel
4Q3/2p1p1n1/1RN2rr1/1K4Rp/pBBP1b2/2PQp2k/1P1QNq1n/2NQr3 b - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 f4 dxe4 fxg5 Nh6 h4 Ba6 g4 Ng8 h5 Bc8 Na3 Bf5 Nb1 Bg6 hxg6 Qd5 Ne2 Qd4 Ng1 Qd8 Ke2 Kd7 d4 Ke6 b6 f5 b7 a5 g7 h5 g6 e3 Kd3 f4 Kc4 f3 g5 Kf5 Ne2 Kg4 Bd2 f2 Nbc3 Rh7 Na2 Qc8 Bb4 Nd7 b8N Ne5+ Kb5 Ra7 c3 Qf5 Nc6 Qf4 Nac1 Nh6 g8Q Rg7 Qh7 Nf5 Rg1+ Qg3 Ra3 a4 Rb3 Nf3 Rg2 Rf7 g7 Ra6 g8Q Kh3 g6 Bh6 g7 Nh2 Qe8 Rf6 g8Q Ng7 Qhd3 Bf4 Q3d2 Qf3 Rg5+ Qg2 Qh7 Rg6 Ng3 Rf6 Be2 f1R Bc4 Qf2 Nge2 Re1 Qhd3 Rg6 Na5 Rad6 Nc6 Rdf6 Ba3 Rh6 Ka5 Rf8 Rb6 Rff6 Bb4 Rhg6 Kb5
BK3B2/pPR1Q1N1/4p1P1/q3rp1n/k1BRr3/PB2N2p/rp5n/R4bQ1 b - - 0 1 illegal: No possible last move, all moves rejected
8/N1pQ3k/Q2rqN1n/p1R1NpBB/3p1r2/P2PN1pn/P2Q1q2/1R1b3K b - - 0 2 illegal: No possible last move
R1Q2K2/2B1r1n1/Pp2p2r/p1pP1NnB/1kPN2Q1/1RpQ4/1bq3N1/6qQ b - - 0 1 illegal: No proof kernel
2b1NR1B/P2B1nRq/ppP5/N1Q5/1PK2bpQ/q2r1k2/p2r1pNQ/7N b - - 0 1 illegal: Other
BR3N2/P2nQpB1/p1R1R1pb/1r5p/3rpP2/Q1Nkq2b/KB2P3/2q4B b - - 0 2 illegal: Other
Q1Q4q/2b3nN/2N2pKR/p4N1p/R2rp3/P1B2PPR/1qkBb2p/2N1r3 b - - 0 2 legal: proof: c4 d5 e4 b5 cxb5 h5 exd5 Nd7 h3 Ndf6 Bd3 Ng4 Bg6 h4 Bh5 g6 hxg4 gxh5 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kc4 b4 a5 b6 e5 b7 c5 b8B h3 g5 f6 g3 Be6 b5 Bg4 f3 Qd6 b6 Qe6 g6 Be7 b7 Qf7 g7 Ra6 d6 Bd8 d7 Rb6 d5 Qf8 d6 Qe7 Qd5+ Kb4 Nc3 c4 Nge2 Ra6 Bd2 Bb6 d8R Nh6 g8N Ka3 d7 Qf8 Ne7 Kb2 Ba7 Nf5 b8Q Qg8 Qc8 Bc7 Bd4 Rd6 Qda8 Ng7 Rf8 Be6 d8N Bd7 Re8 Bb5 Ndc6 Qe6 Rd8 Re8 Rh2 Qg8 Rhh1 Ne6 Kf5 Ng7+ Kg6 Qf8 Ne4+ c3 Nf5 Ba6 Bc5 c2 Bcb4 c1Q Ng5 Rd4 Bbc3+ Kc2 Rh2 Qb2 Nc1 Ne6 Rd7 Qh8 Rh7 Ng7 Rh6 Re6 Re2 Bd3 Re4 h2 Rh4 Re4 Nh7 Re1 Rb4 Be2 Rh4 e4 Rh3 Rd6 a3 Qb4 Rb1 Rd4 Rb3 Qb6 Rb4 Qb5 Rc4 Qb2 Ra4
1k5N/4b2n/Qn1ppr2/1BRQ4/p1Bpr2Q/3KPP2/Pp1N1R1B/3q1Q1q b - - 0 2 legal: proof: g4 f5 gxf5 c5 h4 g5 hxg5 a5 b4 b6 d4 cxd4 b5 Ba6 bxa6 Qc8 Kd2 Qc7 Ke1 Qd8 Kd2 h5 c4 d6 g6 Kd7 g7 Kc7 c5 b5 f3 a4 a7 h4 c6 b4 f6 h3 f7 h2 Kd3 b3 Nh3 b2 Nd2 Nd7 Nf4 Nh6 g8B Rb8 a8Q Kc8 c7 Qe8 Ng6 Rh7 Nh8 Qd8 Qd5 Qe8 Rg1 h1Q Rg2 Rb7 Rf2 Ng4 Qe1 Rh6 Qd1 Bg7 f8Q Nb6 Qf6 Bf8 Qh4 Rf6 Bf7 Qc6 Be8 Qc5 Bb5 e6 Bc4 Be7 Bb5 Qc6 Qe1 Rb8 Rb1 Kb7 c8Q+ Ka7 Bc4 Qb7 Qcc6 Rbf8 Qc8 Qc6 Qa6+ Kb8 Bb5 Qc8 Ke4 Rf5 Nb3 Qc6 Bf4 Rg8 e3 Qc1 Bh2 Qd1 Rc1 Rg6 Nd2 Rf4+ Kd3 Re4 Rc5 Nf6 Qe2 Qa1 Kc2 Nh7 Qe1 Rh6 Bfc4 Qd1+ Kd3 Rf6 Qf1
nq3B2/5b1p/P1Bpp3/1R3rR1/2N3pR/1n2r1p1/QqNPQ2P/1RQK3k b - - 1 2 legal: proof: c4 b5 cxb5 f5 f4 a5 b4 e6 bxa5 Qf6 g4 fxg4 e3 Bd6 f5 Bf4 exf4 Qd8 a4 Ke7 f6+ Kd6 b6 Kd5 f7 Ke4 f8Q c5 f5 g5 a6 g3 a7 c4 f6 c3 a5 c2 b7 Ne7 f7 Kf4 Qe2 Ng8 Qc5 Nh6 f8R+ Nf5 Bg2 Na6 b8R Nc7 Rg8 Nd4 Na3 Nb3 Nc4 g4 Ba3 Qe8 Rg5 Rf8 Rb5 Rf5 Nf3 Rb8 a6 Na8 Nd4 Bb7 Bb4 Be4 Raa5 Bd3 Bc6 c1Q+ Qd1 Rb7 Nc2 Qb2 Qe2 Qb8 Kd1 Rb6 Qd5 Be4 Bf8 d6 Rh5 Rb7 Rh4 Rc7 Qe1 Kf3 Qc5 Kg2 Qe2+ Rf2 Qa3 Rf7 Qa1 Rf3 Qc1 Bg6 Rg5 Bf7 Rad5 Nb6 a8Q Re3 Qb7 Na8 Qb5 Qb7 Qa5 Qa7 Qa2 Qb8 Qd3 Rf5 Re1 Rf1 Qe2+ Kh1 Rb5+ Rf3 Qcb1 Qg7 Qba1 Nd4 Kc1 Qf6 N2e3 Nb3+ Kc2 Qd4 Q1b2 Qg7 Rb1 Qh8 Qc1 Qg7 Ng2 Re3 Ne1+ Rff3 Kd1 Qb2 Rbd5 Rf4 Nc2 Rf5 Rb5+
3K1R1n/bQp1p2P/3B3p/rrP1B1P1/5n2/1QNQNb2/2p1p3/b3RBkQ b - - 0 1 illegal: Other
RK1k2Q1/1p1qn2P/1P6/2pn2p1/3prpQ1/1RP1BN1B/4n1nB/N2NB2r b - - 0 1 illegal: No proof kernel
1r3BnQ/1p1p3q/1P1NB1p1/R1b1B1PN/1Pk2p2/2n5/1K2p1Bp/R2RQ1r1 b - - 0 2 illegal: No possible last move
3B1k2/1BKbpppR/2p5/2b3PQ/1n1pqP2/2N1Q1Bp/1BP1Rn1R/1N1b4 b - - 1 3 illegal: No proof kernel forced: wxDB
1R1Q1N1B/qB1R2n1/qQ3bpr/n5PP/pkbb1n2/R1r1B1q1/P1BK4/4N3 b - - 0 1 illegal: No proof kernel
Q7/4b1Rn/1K1pbpqR/5P1B/1BBQ1Nrq/2rPQb2/1n3P1n/kqBN4 b - - 0 1 illegal: No proof kernel
bQ1N1QKB/n4r2/1Np5/3B1k1r/2nRN2q/P1P1R1pb/Nb3qPr/n4Q2 b - - 0 1 illegal: No proof kernel
2B3n1/b2N3R/1BP1p2k/2K4n/bQp1b3/r1P1Pnq1/2q1rQ2/N1B1RBQr b - - 0 1 illegal: No proof kernel
k3K1Q1/p3p3/6nr/Pn1PP1b1/1rq1B1N1/qnr1bN1b/2BQ3Q/B1RRQ3 b - - 0 1 illegal: No proof kernel
1Q2R2n/pQn1nB1K/1q1qpr2/BB1rP1b1/B2P4/PRN1N3/r6N/q2bk3 b - - 0 1 illegal: No proof kernel
1rB2Q1Q/p3R1K1/1B4nP/nQbq3k/2R5/P1B1prq1/1QnqP1N1/rb5N b - - 0 1 illegal: No proof kernel
4n1R1/K2pn3/1p3BQ1/1PQP2Pr/B2nrkNq/nb2b1Rn/1NQ2rN1/5Q2 b - - 0 1 illegal: No proof kernel
1R1b2r1/BR1ppnk1/QN6/bPnP1nrb/2QbP3/3q1R1R/NbB4K/7Q b - - 0 1 illegal: No proof kernel
5rRb/1p2bQ1R/2rq3N/QBB1nb2/N2Pp1k1/bP2Pb2/4Q3/2BrBnK1 b - - 0 1 illegal: No possible last move
r2Rr3/2BQ1p2/1Q2b1R1/1P3BNb/n3qr2/1pb3nK/1P1B1P1b/1Nkb1B1Q b - - 0 1 illegal: No proof kernel
rk3r2/bQ1R1npB/B1p2NqN/2b5/3r2R1/2PRBPbn/2b1K1PB/3Qb3 b - - 0 1 illegal: No possible last move, all moves rejected
r1N2r2/RpB4r/1P1qbN1N/K1Rn4/p1P2n2/P3n3/1bBkBQQ1/4Bbb1 b - - 0 1 illegal: No possible last move
Bq3b2/1b2N1Rr/2Pp2B1/rq1P2k1/nNnK1Bp1/q2QB2q/1N4Pq/RQ6 b - - 0 1 illegal: No possible last move, all moves rejected
1R2b1R1/6bQ/1q2q1BB/n5bk/3p2rn/1N1P1pr1/P2Q1P2/RQb1RqNK b - - 0 1 illegal: No proof kernel
BrQB2k1/4RR2/p1b1rQ2/P1K2N1n/R1QN4/1p3q2/1PQnrP2/3qbr1n b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 gxh4 c4 d5 cxd5 Qd7 Rh3 Qd6 Rh1 Qd8 Ke2 Kf7 Ke3 b5 Kd4 h5 g4 c5+ Ke3 e5 d4 c4 a4 b4 a5 h3 d6 e4 d5 h4 Kd4 h2 f6 c3 d7 h3 g5 a6 d6 c2 Nf3 b3 Na3 e3 Nc4 e2 Bg2 e1R Ne3 Nc6+ Kc5 Ne5 Nf5 Nc4 Ra4 Nd2 N3d4 Re2 Re1 Rb8 Ba8 Re6 Qe2 h1N Qd3 Bg7 g6+ Kf8 f7 h2 Qe4 Nf6 Qc6 Rh6 Qc7 Re8 Re7 Nh5 Qc6 Bb7 Qe4 Nb1 Bg5 c1R+ Qc2 Bc6 Bf6 Nd2 Bg5 Qc8 d8Q Qd7 Qc8 Rf1 Bh4 Qb7 d7 Bh8 d8Q Qd7 Nf3 Bc3 Bf6 Qd3 N3d4 Qf3 Bg5 N1g3 Qd6 h1Q Qf6 Qg1 Bf4 Nh1 Bc7 Qgg4 Bb6 Qd1 Bd8 Qgf3 Nd6 Ng7 Qff5 Rb7 Rd7 Re2 Re7 Nh5 Qe5 Nb1 Qee6 Kg7 f8R+ Qf7 Qc4 Be1 Q8e6 Rb8 Qc8 Kf6 g7 Nd2 g8Q Rg6 N6f5 Rh6 Qh8+ Kg6 Qe5 Kh7 Ng7+ Qf5 Rff7 Re6 Qd7 Qe4 Qf6 Kg8 Ngf5 Qf3 Qc8
3NR2Q/R2BK3/QBr3Nq/pr1r4/Pr1b1P2/2R3p1/n1BRk1P1/1qq1n2b b - - 0 1 illegal: No proof kernel
2rRr1b1/4qnR1/2r2qp1/2Nq1pBB/N4PP1/2RQQN1k/1PK2n2/q1b3R1 b - - 0 1 illegal: No proof kernel
K5N1/Q1B4B/2Pb1B1n/1pp1q2b/1NP1nrbQ/kP1B1RR1/1N6/3qr1nb b - - 0 1 illegal: No proof kernel
1Kb1b1nq/4pB2/N6r/q1P1RRq1/N3P1p1/B3R1P1/Qbk2B1Q/2r1bRn1 b - - 0 1 illegal: No proof kernel
2Q1qnnk/Qb1BQ1r1/1p2N2P/1qQRR2r/1P1p1qBB/4b2b/3P1b2/1K1N4 b - - 0 1 illegal: No proof kernel
2R1b1n1/3n1N1N/1NP4B/3N1K1Q/1p3p1Q/b1nBr1q1/1Pq1qPr1/q3RRk1 b - - 0 1 illegal: No possible last move
1rRB2NK/bQ1b2n1/pnB5/3r1pqn/N1RB1PP1/PQ5q/2q3k1/1n1BN3 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 g5 hxg5 c5 bxc5 Bf5 Qh5 Be6 Qd1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 d4 b5 g4 e5+ Kg3 f5 Kh4 h5 f4 a6 c3 e3 a3 Ke4 d5 b4 d6 b3 c6 b2 d7 e2 c7 e1N c4 Nd3 c5 Nf6 c6 Nc5 g6 Ne6 g7 Bc5 g8N Ng7 Kg5 h4 Kg6 h3 Nf3 h2 Qb3 Nfh5 Ne1 Ba7 Be2 Qg5+ Kf7 Rh6 d8B Bd7 c8Q Rd6 c7 Rd5 Rf1 h1Q Qcb7 Qh3 c8B Ne8 Bd2 Neg7 Bc3 Ke3 Rh1 Kf2 Bd1 e4 Bd4+ e3 Nc3 b1N Na4 Kg3 Rf1 Kh2 Rf3 e2 Rc3 Kh1 Rc4 Kh2 Nc2 e1Q Ra2 Qec3 Ne1+ Qd2 Rac2 Qdg2 Rc1 Qc2 Kf8 Bb5 Be6 Nd7+ Kf7 Nb6 Bd7 Rb8 Bc6 Qgh4 Kg6 Qg5+ Kh7 Kh1 Be8 Bd7 Kh8 Bc8 Bb5 Bd7 Rc8 Qa2 R1c4 Qc2 Bc6 Kh2 Nd3 Kg2 Ne1+
NNNk1b2/QQ4pq/1b1B1R1P/n1q1p1K1/1q4P1/1N2Pr2/Qb2B1R1/4nr1b b - - 0 1 illegal: No proof kernel
1qr2Rq1/pnQbb1p1/Q3N3/5bPR/Q2rB3/PbNPQ2n/3B3K/k3Rr2 b - - 0 1 illegal: No proof kernel
2r2b2/2bQRN1k/R1P1ppb1/qn2N3/B4Q2/n4P1q/1B2PB1n/br1N2KB b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 g4 hxg4 axb5 Rh7 Be3 Rh6 Bc1 Rh8 c4 g5 h4 d5 b4 a5 h5 a4 f3 d4 Kf2 a3 b6 d3 c6 a2 c5 f6 b7 Kf7 b5 Kg7 h6+ Kh7 c7 d2 b6 g3+ Kg2 g4 c6 Na6 b8B Nb4 b7 Bf5 c8B e6 Nh3 Bg6 Ba7 Rb8 Bb2 Nc2 Na3 Qa5 Kg1 g2 Nc4 Na3 Ne5 Bc2 Rb1 a1B Nf2 Bg6 Rc1 Ne7 Rc4 Nd5 Ra4 Nc7 Rh3 Ncb5 Bb6 Ra8 b8Q Rg8 Qd6 Rb8 Ba6 Rb7 Qc1 d1N Qf4 Ne3 Nd1 Rb8 Rh4 Rc8 Qd7+ Rg7 Kh2 g1B+ Kh1 g3 Bg2 Nf1 Bf2 Nh2 Rg4 Kh8 h7 Re7 Rg5 Kg7 h8N Kh7 Nhf7 Ree8 Be1 Bb6 Bf2 Bc7 Kg1 Re7 Bh1 g2 Qd8 Rd7 Rg3 Rd4 Qd7 Rc4 Rg5 Rc1 Rg3 Rb1 Rg4 Na7 Bd3 N7b5 Bc2 Qd2 Ra8 Qa5 Ba4 Kg7 Ra6 Kh7 Nd8+ Bf7 Rg6 Kh8 Rg7 Bg6 Re7 Kg8 Ndf7 Kh7 Bh4 Qb4 Kf2 Qa5 Kg3 g1Q+ Kh3 Qg5 Bf2 Qh4+ Kg2 Qh3+ Kg1
4BN2/bbP1p1pr/2RB1qqB/1bQq3k/5QP1/3NR3/1RK1Pn2/r2B2bn b - - 0 1 illegal: No possible last move, all moves rejected
rR1qR1B1/b1pb2np/2b1rqP1/K1NBn3/Q6b/4k1BP/Q1P1nNQ1/7B b - - 0 1 legal: proof: d4 e5 dxe5 g5 f4 gxf4 a4 b5 axb5 Qg5 Qd2 Qe7 Qd1 Qd8 Kd2 Ke7 Kc3 Ke6 b4 Kf5 e4+ Kg5 g4 d5 e6 a5 e5 f5 b6 a4 b5 a3 e7 a2 Kb4 d4 e6 d3 b7 d2 b6 f3 Qe2 Kf4 g5 f2 g6 Ra7 Bg2 f1Q Nc3 Qf3 Nh3+ Kg4 Na4 d1B Bf4 Nh6 Bg3 f4 Nc5 Bd7 e8B Nf5 Bf7 Be7 Rb1 Ng7 Re1 Re8 Bh1 Ra8 Bg8 Bh4 e7 Nc6+ Kb5 Kf5 b8Q Qc3 b7 f3 Qg2 f2 Re6 Qf6 Qa7 Bf3 b8Q Ne5+ Kb4 Bd5 Qb5 B5c6 Qa3 Kg4 Qba4 Kf5 Na6 a1B Ka5 Bb2 Qa2 Bd4 Rb8 Ba7 Nc5 f1N Nf2 Kg5 h3 Kf5 Bh2 Ng3 Qb5 Bd5 Qba4 Ne2 Bf4 B5c6 Bg3 Rf8 e8B Rf7 Na6 Re7 Bef7 Re8 Re7 Kg5 Bd5 Kf5 Rf7 Re6 Re7 Kg5 Re8 Kf5 Nc5 Kg5 Nfe4+ Kf5 Bf2 Kf4 Bg3+ Ke3 Nf2
kbBN2Q1/4ppR1/n1Qb2Rn/1qb1R2n/b1N5/8/rPR1PP2/rBn3BK b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 g4 hxg4 axb5 Rh7 Be3 Rh6 Bc1 Rh8 h4 d5 c4 Kd7 h5 Kc7 c6 g5 c5 a5 h6 g3 h7 a4 Qd3 g2 Rh6 d4 Qd2 a3 Re6 a2 Qb4 d3 Re5 g4 Nf3 g1B Qe4 g3 Nbd2 g2 Ng5 Qe8 Nc4 Bh2 Bf4 g1B Bh3 d2+ Kf1 d1N Kg2 Nc3 Bf5 Na6 b6+ Kb8 b7 Bd7 Ne6 Bh6 Kh1 Nd5 Nd8 Ndf6 c7+ Ka7 b8R Nh5 c8R Ba4 Rc1 a1N c6 Nb3 c7 Qb5 Rc2 Nc1 Rb6 Bg7 Rc6 Nh6 Rg6 Bg3 Rb8 B1h2 c8B Re8 h8Q Rg8 Rd5 Bd4 Re5 Bc5 Qc6 Rg7 Qg8 Rh7 Re4 Rh8 Bc7 Bgd6 Re5 Rh7 Rb6 Rg7 Rg2 Rg3 Rg1 Ra3 Rg7 Ra1 Rd2 Rb8 Bb1 Rb7 Rc2 Ka8 Qd7 Ra7 Bb8 Bc7 Rbg6 B7d6 Qc6+ Rb7 Ba7 Bc7 Na5 Bb3 Reg5 Nb4 Bb6 Bb8 Bc7 Be5 Qd6 Ra7 Nc4 R7a2 Rf5 Na6 Qc6+ Ka7 Bd6 Ba4 Bc7 Bed4 Bg3 Bcd6 Bh2 Be3 Bg1 Bec5 Qc7+ Ka8 Re5 Bb6 Qd7 Bbc5 Qc6+
2BR4/3n2k1/rnR1p3/pq3r2/1b1pr1NB/1B1b1Qb1/PNNPP1Nn/Q5K1 b - - 2 3 legal: proof: f4 g5 b4 c5 bxc5 h6 fxg5 h5 g4 hxg4 Kf2 f5 c4 Kf7 h4 b5 c6 a5 c5 d5 g6+ Kg7 h5 f4 c7 e6 c6 b4 h6+ Kf6 g7 b3 h7 d4 Nf3 g3+ Kg1 b2 Nh4 g2 Na3 b1R Nc2 f3 Ba3 Rc1 Be7+ Kf7 Qe1 Bd7 c8N Qb6 c7 Nf6 g8N Ra6 Nh6+ Kg7 Ng4 Nd5 Nd6 Qb5 c8B Nb6 Nc4 Rb1 Bd8 Bb4 Nb2 Rd1 Rc1 f2+ Kh2 g1B+ Kg2 Rg8 h8Q+ Kf8 Qe5 Bh2 Qf4+ Kg7 Qf3 Bg3 Rh3 Bc6 Kh1 N8d7 Bg2 f1N Kg1 Bb7 Bh1 Nh2 Ng2 Be4 Rh8 Rf8 Bh4 Rf5 Rd8 Bd3 Na3 Qe5 Rc6 Qb5 Nc2 Rc1 Na1 Rcc5 Nc2 Rf4 Qa1 Rcf5 Qe3 Ra7 Nge1 Rg5 Bd5 Ra6 Bb3 Re4 Qf3 Rf5 Ng2
1bk1bn2/3n1r1Q/K1P1ppQ1/1N1RPP2/p1b2Q1q/R2B2rR/3q4/2q1B1QN b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 h5 gxh5 Rh7 Ra5 Rh6 Ra1 Rh8 Kd2 g5 Kd3 a5 Kc4 f6 b4 d3 f4 g4 h4 g3 e4 g2 f5 a4 h6 d2 h7 e6 b6 d5+ Kb5 Kd7 c4 d4 h5 d3 c5 Qc7 h6 Ne7 b7 Ra6 c6+ Kd8 Ra3 Ra7 Rh3 Nd5 Ne2 g1Q Nbc3 Na6 b8Q Nb6 Ng3 Bd6 Nh1 Rg8 h8R Nc5 h7 Ncd7 e5 Rb7 Ka6 Nf8 b5 Nbd7 b6 Rg3 Nb5 Qc5 Qe1 d1Q Bd2 Qcc1 Ba5 d2 Bd3 Qg4 Qg1 d1B Be1 Bb3 Rg8 Qgc4 h8Q Qh4 Qh7 Bc4 Qa7 Qb8 Rg4 Qa8 Rd4 Bb8 Rd5 Rc7+ Ka5 Rb7 Qa6 Rc7 b7 Qa7 Qg6 Qf2 Qa7 Qg2 Ka6 Qgd2 Rc5 Nb6 Rd5+ Bd7 Rc5 Be8 Rd5+ Nbd7 Qaf2 Qcc3 Qf4 Qcc1 Rc5 Nb6 Qh7 Rf7 Rd5+ Nbd7 Qg6 Bc7 b8Q+ Ke7 Qba7 Kd8 Qaf2 Kc8 Qh7 Bb8 Qfg2 Re3 Qgg4 Rg3 Qgg6
1r2r2Q/1q1N2Rp/3nk1bK/1rpN3p/nb3P1P/2B2qNR/Q1P5/bN1B3Q b - - 0 1 illegal: No proof kernel
1r1NQB2/pB3rB1/qbn2k1K/P6b/bp1r4/n4p2/1PP3qR/BQ2QR1N b - - 0 1 illegal: Other
R1R5/r1pk4/1N1q1n2/1Q1r1qpn/2b1NBBN/P1P1pN1B/n1K1P3/2b3qQ b - - 0 1 illegal: No possible last move
3qn3/4k1Pn/B1p1brqQ/4r1p1/1BP1p2Q/BQQ3bn/NRR3P1/NK3b2 b - - 0 1 illegal: No possible last move, all moves rejected
1n4K1/nq1p2R1/2p1rQ1b/3PN3/QN1N1qbn/2PQR1bk/1prP4/2BN3B b - - 0 1 illegal: No proof kernel
2r2N1R/1pqR4/BP2p1p1/1rQbb1B1/2N1n3/1bQ1R1Qq/nR1Pq1P1/1K2k3 b - - 0 1 illegal: No proof kernel
R2Q1nK1/4qpP1/p1B1RBbr/P3r1nQ/1N3b2/1bq3NN/2k2Ppn/6BN b - - 0 1 illegal: No proof kernel
1rrb1RR1/r2Q3K/P1q1r2N/1r4N1/pk1n3R/1B1p1b2/PB1P1pRn/2Q3Q1 b - - 0 1 illegal: No proof kernel
k2Kb3/bb2RN2/2p4r/p1PRr2N/1B4N1/B1r2Qp1/P2QbBP1/q2Nnn2 b - - 0 3 illegal: No proof kernel
6Kn/1p2Rp1Q/4rP2/2pb1BN1/qnPR2P1/r2NbrB1/b4r2/1NR1Q1kN b - - 0 1 illegal: No possible last move, all moves rejected
4nb1k/1bB3N1/1NPR3R/5n1Q/K3pqpp/1BQNrrbP/2RRP3/b2n4 b - - 0 1 illegal: No possible last move, all moves rejected
q2Nb2Q/p1n4p/Pr1RR1nQ/B2b1N1P/1N1Pprk1/2K4B/5b1r/1RN4r b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 c5 bxc5 Bg7 Bd3 Bh6 Bf1 Bf8 d4 Kd7 Kd2 Ke6 c4 Kf5 h4 e5 a4 b5 g4+ Kf4 h5 f5 a5 e3+ Kc3 e4 c6 Bh6 g6 Qc7 g5 Qd7 g7 Qb7 c7 Qb6 g6 Na6 c5 Bd7 c8R Nc7 c6 Qb7 Re8 Ne7 g8N Rc8 g7 Qa8 Qd2 Ng6 Ne2+ Kg4 Ne7 f4 g8Q f3 Nf5 f2 Re6 Be8 Na3 Bg5 a6 Bh4 Rb1 Bg3 Bg2 f1R Rg1 Rf4 Nc2 Bf2 Nb4 Rb8 Bb2 Rb6 Nc1 e2 Ba1 e1R Bh3+ Kf3 Qg7 Rf8 Qh8 Rh4 Rg4 Rh1 Qh6 Rh2 Ne3 Rf4 Nf5 Nf8 Rg7 Ng6 Rd7 Rh1 Rdd6 Rh2 Kc2 Rh1 Bc3 Rh2 Nbd3 b4 Be1 b3+ Kc3 b2 Nb4 Nd5+ Kb3 Rh1 c7 Rh2 c8N Nc7 Nce7 Rh1 Ra1 b1B Kc3 Ba2 Nec6 Bb3 Rb1 Bd5 Nd8 Rh2 Kc2 Rh1 Nbd3 Rh2 Ba5 Rh1 Kc3 Rh2 Bf1 Kg4 Nb4 Rh1 Bg2 R4h2 Bh3+
nb1NNR1k/rb2pQ2/1N4K1/p1bp1RB1/P4Qr1/1B1P2P1/n2R4/2b1qRn1 b - - 0 1 illegal: No possible last move
bK2nRn1/1B4r1/r1bQ1bBQ/1P3kpN/nN2p3/1Q1q2P1/1p2P3/3R1bBB b - - 0 1 illegal: No proof kernel
NBNb1Q2/4r1Pb/B1rN2nn/R1p3N1/1pR2p2/2q2Pb1/n1P5/1k1K1nBQ b - - 0 1 legal: proof: e4 d5 exd5 a5 h4 g5 b4 axb4 hxg5 Qd7 Qe2 Qd6 Qd1 Qd8 g4 Kd7 a4 Kd6 d4 f5 g6 e5 a5 c5 g7 h5 a6 b5 g5 b3 a7 h4 g6 b4 f3 b2 Ra3 f4 Be3 h3 Bd3 e4 Ra4 h2 Bc1 e3 Ba6 e2 Be3 Nc6 Ra5 Be7 Nd2 b1N Nh3 Rh6 Ng5 Nc3 Bg1 Bf5 Qa1 Rc8 a8N Rh7 Qb1 Nh6 g8N Bf6 Ne7 Qh8 Qa1 Na2 Nc4+ Kd7 d6 Ne5 d5 Rc6 Kd2 e1B+ Kd1 Bg3 Nc8 Bd8 Qb1 Re7 g7 Qf8 Qa1 Bh7 Qc1 Ng6 Qb1 Qf6 Qc1 Bc7 Qa1 Kd8 d7 Qc3 N4d6 Bb6 Be3 Bc7 Re1 h1N Bg1 Bb6 Re4 Bc7 Rc4 Bb6 Rb5 Ba5 Nab6 Kc7 Qc1 Bf2 Qb1 Ng3 Qc1 Nf1 d8Q+ Kb8 Qf8 Kc7 Qb1 Bg3 Na8+ Kd7 Qa1 Bc7 Ra5 Bd8 Ne8 Rf7 d6 Re7 Nh3 Ke6 d7 Ke5 Ned6 Bb6 d8B Kd5 Bc7 Ke5 Bb8 Bd8 Re4+ Kd5 Re3 Kd4 Qc1 Qb3 Re2+ Kc3 Ng5 Qb2 Re4 Qa3 Qe3+ Kb2 Rc4 Kb1 Qe6 Qb3 Qh3 Qc3 Qh1
1Q3b1N/2bq1Rr1/BpB2p2/5b2/PrpR1P1n/4Nrrn/2P2B1Q/2kN1B1K b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 Qh4 Ba3 Qf6 Bc1 Qd8 e4 Ke7 a4 Ke6 h4 c5 f4 g5 Kf2 d5 Kg2 d4 h6 b3 h5 b2 h7 d3 h6 c4 Ra3 g4 Ra2 g3 Nh3 d2 Na3 b1R Nf2 f6 Nb5 Rb4 Ra3 Ne7 Nd6 Na6 Qe2 d1R Be3 Nc5 Rd3 Qd7 Rd4 Rd3 Nd1 Nf5 Bf2 Rg8 h8Q Rf3 h7 Ra7 Rg1 b6 Kh1 Nh4 Nf5 Nd3 Nfe3 Rg5 Qd2 Bd6 Qd8 Bc7 h8N g2+ Kh2 Bb7 Qb8 Rgg3 Qe2 Bc8 Rh1 Ke7 e6 Rb7 e5 Ra7 Be1 Nf2 Qd2 Nh3 Bf2 Kf8 e7+ Kg7 e8B Kh6 Nf7+ Kg6 e6 Kh5 e7 Kg6 Nd5 Kf5 Nh8 Kg4 Rd3 Kf5 N5e3+ Ke4 Qe2 Qf5 Bb5 Qd7 e8B Rb7 Rd5 Ra7 Re5+ Kd4 Re7 Rb7 Nb2 Kc3 Ba6 Ra7 Rf7 Rb7 Qd1 Ra7 Qa1 Kd2 Nbd1 Rb7 Qe5 Kc1 Qh5 Ra7 Be2 Rb7 Re1 g1B+ Kh1 Qg4 Bf1 Bf5 Bc6 Qg7 Rf8 Qd7 Rf7 Ra7 Ng2 Rb7 Re4 Ra7 Rd4 Rb7 Be1 Be3 Bf2 Ra7 Rd6 Bc5 Rd4 Bf8 Nge3 Ra8 Qa7 Re8 Qb8 Re7 Rh7 Reg7 Qh6 R7g5 Rf7 Rg7 Qg5 Rg2 Qg4 Rg6 Qg3 Rg7 Qh2 R2g5 Rd2 Rgg3 Rd4
2qn2NR/p1pbnk2/2BN4/pBQ1nb1K/P1Pn1B2/2rBR1r1/2P5/2R1b2Q b - - 0 1 illegal: No proof kernel
n3B1bq/KQ1p1N1r/NB1RRp1n/R2r1k2/p3n1Q1/PPB2P2/4b3/b1b1B3 b - - 0 1 legal: proof: d4 e5 g4 exd4 c4 b5 cxb5 h5 gxh5 Rh7 Nc3 Rh6 Nb1 Rh8 Kd2 Ke7 Kd3 Ke6 Kc4 c5 h4 a5 e4 g5 b6 g4 Kb5 c4 h6 c3 b3 g3 h5 g2 b7 d3 e5 c2 h7 d2 h6 Qe7 Kb6 Qe8 Nh3 g1B Na3 Ne7 Qg4+ Nf5 Bc4+ Ke7 e6 Kf6 e7 d1B Ng5 Ke5 Be3 c1N f3 Nd3 Nc2 Be2 Nb4 Nc5 Na6 Bg7 a3 a4 Rh5 Bf2 Rd1 Ne4 Rd6 Bf6 Bc5 Be3 Be6 Qg8 e8R Bc1 Bf2 Bg7 Be1 Kf6 Re7 Kg6 Re8 Ba1 Re7 Qg7 Bc4+ Qf6 Ree6 Ra7 Nc5 Na6 b8Q Ra8 Qb7 Nc7 Na6 Rb8 Ka7 Na8 Qc6 Rb6 Qb7 Rb5 Bd3 Rd5 Bc4 Re8 h8B Re7 h7 Nh6 Bg7 Rb5 h8B Rd5 Qc7 Bb7 Bd3 Bc6 Qb7 Bb5 Bf8 Bc4 Bhg7 Re8 Be7 Rf8 Bd8 Rh8 Bb6 Rh7 Re8 Qe6 Bgc3 f6 Re7 Qg8 Ree6 Qh8 Nf7+ Rg5 Qh4 Rd5 Bb1 Rd2 Ra5 Rd5 Bc2 Kf5 Qh3+ Kf4 Bd3 Ng5 Bg6 Ne4 Nd8 Kg5 Be8 Kf4 Qh4+ Kf5 Nf7 Qf8 Nd8 Rc5 Re7 Qh8 Qg3 Bg8 Ree6 Rb5 Nf7 Rd5 Qg4+
Qb1nk3/QBQbNR2/pr1RpQ1r/np6/Nnb2N1b/3PP3/P3qB2/K7 b - - 0 1 illegal: No proof kernel
2NQqnk1/r4pP1/N2bp3/1r1n4/1B1R1Np1/KbN1P1n1/5PBn/b3QBR1 b - - 0 1 illegal: No proof kernel
R1BnnB2/2q2pQ1/Q3NP2/2N1p2K/1Pkb3N/rrb1PB2/q1b1p2R/b6B b - - 0 1 illegal: No proof kernel
4N1rR/2k1pN2/3qr3/1R1bP1q1/pR1Qp2b/P1qq1B2/2nP1B1K/QNn2R2 b - - 0 1 illegal: No proof kernel
2q3q1/kpB2n1b/1QqpN3/r1BP1p2/1P3q1Q/3BP1R1/R1N1n1rb/4K1RR b - - 0 1 illegal: No possible last move, all moves rejected
k1b5/b1Kp1pQ1/N7/NRQP1N2/n2P1P2/qBBq1N2/1pbbn1r1/1R2Q2r b - - 0 1 illegal: No proof kernel
3k2Q1/1K2pQ1p/5q1b/1QpB1N2/4PBbr/nnq1PQr1/R1Pq2B1/4Nq1R b - - 0 1 illegal: No proof kernel
8/n1nq1P1p/prp3rN/1kN4r/q4Q1P/P5b1/Q2R2KQ/rRNb1QBB b - - 0 1 illegal: No possible last move
n2KQ2N/3pn1p1/R4B1b/Pp1qQb2/6P1/3P1bbB/N1kr1QrB/R1q2B2 b - - 0 1 illegal: No proof kernel
3NqB2/bQ2pb1Q/2pqq3/2P2BKp/1r2NR1P/n2Bk3/1Q2Pb2/1R1Bb2n b - - 0 1 legal: proof: d4 a5 b4 b5 bxa5 f5 g4 fxg4 d5 c6 d6 Ra7 Nd2 Nh6 Nb1 Rc7 dxc7 Ng8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 a4 h5 h4 g3 c4 d4 a6 b4 a5 b3 a7 b2 a8B d3 a6 g2 a7 d2 Bb7 Nd7 a8Q Nh6 Ba6 Qe8 Ra4 Nb6 Nh3 g1B Qc2 d1Q Bg2 Ng4 Be4 Be6 c8B Bf7 Nc3 b1Q Qb2 Qa2 Bc2 g6 f3 Bf2 Qb7 Bh6+ Ng5 Bg7 Ne6 g5+ Ke4 Qdd7 f4 Qd6 f5 Rg8 Kf3 Ke5 Nd8 Kd4 f6 Be1 Bb5 Nf2 Bd1 Rf8 Rf1 Nh1 Bf5 Qb3 Ra1 Rg8 Rb1 g4+ Kg2 g3 Kf3 g2 c5 g1B Bbd3 Nc4 Bh6 Na3 Rf2 Bh8 Bf8 Qbe6 Rf1 Rg4 Rf2 Bg8 f7 Be5 Rf1 Bgf2 Ne4+ Bc3 Bh6 Beg3 f8Q Bf7 Qg8 Bh2 Qh7 Rf4+ Kg2 Ke3 Bf8 Bd2 Ng5 Rb4 Ne4 Bde1 Kh3 Qd4 Kg2 Bb8 Kh3 Bg1 Rf4 Ba7 Kg2 Qdd6 Kh3 Nf2+ Kg3 Nh1+ Kg2 Bgf2 Rg4 Bc3 Kh3 Qed5 Kg2 Kd4 Kf3 Q6e6 Kf4 Qdd6+ Kg5 Ke3 Rf4 Bd2 Qa1 Bde1 Qb2
N1n1qrrn/1pb1p2B/NP4RB/3N1Qq1/RNB3p1/n1Q1n1P1/1k1KPq2/8 b - - 0 1 illegal: No proof kernel
N1Brb1Rk/B1NR4/2B2p2/2p3rp/2P3B1/r2rrPrP/q2R2Qb/1n1KQ3 b - - 0 1 legal: proof: d4 a5 g4 f6 b4 Nc6 g5 Ne5 g6 axb4 Nh3 e6 Ng1 Nf7 gxf7+ Ke7 Bh3 e5 dxe5 Qe8 Bf1 Qd8 c4 g5 a4 b5 e4 d5 h3 h5 e6 c5 e5 d4 a5 b3 a6 b2 a7 b4 Qe2 d3 Rh2 d2+ Kd1 g4 Qe1 b3 Nc3 b1R Nge2 b2 Na4 g3 Nf4 g2 Nb6 g1R Be2 Rg5 Bg4 Bd7 f3 Bh6 Nfd5+ Kf8 e7+ Kg7 f8R Be8 e6 Qc7 Rg2 Qh2 Nc7 Rd8 Ra4 Ra1 a8Q b1R Ra7 Rb3 Qc8 Ra6 Nba8 Re3 Qb7 Kh7 Qb2 Raa3 Qa2 Rdd3 Bb2 Kg7 Be5 Rh7 Qc2 Kh8 Rb7 Rhg7 Bf4 Bf7 e8B R7g6 Bb5 Be8 e7 Rd8 Bc8 Rg3 Bbd7 R6g5 Bg4 Rdd3 Qb2 Rd8 Kc2 d1R Ra7 R1d3 Rd2 Rg7 Bd6 Bf4 Kd1 Rg5 Qc2 Bg6 e8B Qg2 Bc6 Be8 Rf7 Ne7 Rg7 Nd5 Rd7 Qh2 Rb7 Be5 Rb8 Nc3+ Kc1 Bg6 Rg2 Re8 Nd5 Re4 B8b7 Ree3 Rc8 Bf4 Bb8 Nb1 Ndc7 Rf8 Rf2 Rg1 Ba7 Qg2 Re8 Bh2 Bc8 Bf7 Re2 Qf2 Qd2 Rg3 Kd1 Qg2 Ree7 Bg6 Rg7 Rd8 Rf2 Rdc3 Qde2 Be8 Q2f1 Rcb3 Ra2 Qb2 Qg2 Qa1 Re2 Qa2 Red2 Rbd3 Rg8+
3n4/3NpQBQ/Q1b3rN/PprBR1Qp/p2qP1nP/kb2bnKR/7R/8 b - - 0 1 illegal: No proof kernel
6rk/KQpn4/P1bb4/rp2RN1p/r3Q2P/2PN1B2/NNn2p2/B1B1bR1q b - - 0 1 legal: proof: e4 d5 exd5 a5 f4 g5 b4 axb4 fxg5 Ra7 Nc3 Ra3 Nb1 Ra8 Ke2 f5 Kd3 Kf7 Kc4 Kg7 Kb5 h5 h4 e5 g4 b6 a4 f4 d4 b3 a5 f3 g6 e4 g5 f2 d6 b2 d7 e3 d5 e2 d6 e1B Be2 Na6 Na3 Qf6 d8B Bb7 d7 Nh6 Nh3 Qe6 Nc4 b1R+ Nb2 Bg2 Nf4 Nf7 Bf6+ Kg8 d8N Bd2 g7 Bd5 Nc6 Bc5 Nb4 Nh6 Na2 Nf5 Rf1 Rh7 Nd3 Ra7 Bf3 Be7 Qe1 Rh8 Qe4 Be1 Bc3 Kh7 g8N Bd6 Ne7 Nc5 Bd4 Qf6 g6+ Kg7 Bc3 Ne3 Nf5+ Kg8 g7 Nd7 Bd4 Qe5 Bc3 Qh2 Bd4 Qh1 Be5 Rb7 Ka6 b5 Bf6 Rb8 Ka7 Bc6 a6 Rf8 Nd1 Rb4 N1b2 Ra4 Be5 Kh7 Bd4 Ra5 Be5 Rf7 Bf6 Kg6 g8Q+ Rg7 Qd8 Kh7 Qb8 Rhg8 Qb7 Kh8 Qf4 Bd2 Nc4 Nb6 Bcb2 Be7 Rae1 Nd7 Bc1 Bd6 Ba1 Bc3 Ncb2 Rg4 Re2 Be1 c3 Nc2 Qc4 Rf4 Re5 Rd4 Qd5 Rda4 Qe4
Q3R3/KBPk2rR/1pp2r2/1Rr1pQp1/6P1/2Bbn1b1/1PQ1R1q1/3Nbn1N b - - 0 1 illegal: No proof kernel
2b3R1/q3pbnN/3p3N/NRB1k2p/KnpnNQ2/4bP1B/2rPr2P/4R2Q b - - 0 1 illegal: No proof kernel
1rR2B1N/2R3bb/b1RR1N1p/2Pr3p/qk1n2pP/2p3B1/Q1Pq2Q1/K2B1n2 b - - 0 1 illegal: Other
8/1n2PBK1/1p1pRp1p/2k1b1NP/1rBPq3/BbQQ1n1q/b1R5/N1RR2r1 b - - 0 1 illegal: No possible last move, all moves rejected
Qrn1n3/Nq1Q1qr1/2pP1pR1/3p1P2/1RP1BQ1B/2B2bbK/p2B4/k2bN3 b - - 0 1 illegal: No proof kernel
1kR1K1b1/rPb1R1Nb/r2B1Q1p/4q3/1pq1np1n/pP5B/4QPQN/6QN b - - 0 1 illegal: No possible last move, all moves rejected
3nR1n1/2B1rk2/N3b1n1/BRbBp3/pp5Q/PQqRPP1r/4RKp1/3q3N b - - 0 1 illegal: No proof kernel
nnRk3K/8/1bq2RpP/BB2r1b1/pBpp1Q2/P2q1B2/b2PQ1rQ/2N4N b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 c4 bxc4 gxh5 Bd6 Bh3 Ba3 Bf1 Bf8 Kf2 a5 Ke3 c5 Ke4 g6 h4 a4 b4 c3 h6 c2 e6 d5+ Ke5 f5 e4 f4 h5 c4 e7 f3 h7 d4 b5 f2 b6 Be6 b7 Kd7 e8Q+ Kc7 Ba3 c1B Qg4 Ra7 Qf4 Bb2 Nc3 Qh4 Nh3 Bf5 Bb4 Bc8 a3 Bc1 Be2 f1Q Bf3 Qhf2 Ne2 Q2g1 Nf2 Bb2 Nc1 Ne7 Kf6+ Kb6 e5 Kc7 Rb1 Ra5 e6+ Re5 Rh2 Qfg2 Nh1 Bc3 Rb3 Qe2 Rf2 Bh6 Kf7 Nd5 e7 Bg5 Kg7 Rf8 h8Q Bf5 Qh7 Rf6 Kh8 Qd3 h6 Rf7 Qh2 Rf6 Qhf7 Nb6 Rb1 Re6 Rf1 Be4 Qff4 Qg2 Ba5 Rf6 Rb5 Rf5 Bb4 Na8 Rc5+ Kd6 Rc7+ Ke6 Bc5 Ba5 Bb4 Bb6 Ba5 Qde2 Bb4 Bb1 Ba5 Ba2 Bb4 Na6 b8B Qd3 Ba7 Nb8 Rf2 Bc5 Bb6 Re2 B6a5 Rfe5 Qd8 Ba7 e8B Bb6 Rf1 Rf2 Bb5 Rfe2 Qdf8 Rf2 Qe4 Re2 Qff4 Rf2 Rc6+ Kd7 Qe2 Ke8 Rc7+ Kd8 Bh5 Qge4 Bf3 Rg2 Qg4 Qb7 Bd5 Be3 Rf6 Bf4 Bf3 Bg5 Qgf4 Qc6 Rc8+
3N1nKN/3k1rpN/n1n1pp1Q/8/P1Q1P2N/pbR3BR/PBB2q1b/1r1q4 b - - 0 1 illegal: No proof kernel
1nk2K2/1B5q/1Q4r1/1Np1N2n/1R1p1bpq/p2R2P1/Pb1P1N1B/1R1RQn1r b - - 2 3 legal: proof: c4 b5 h4 g5 h5 Bb7 e3 bxc4 e4 f5 exf5 Bd5 Rh2 Bf7 Rh1 Bg6 hxg6 Bg7 Qe2 Bh6 Qd1 Bf8 Ke2 d5 Kf3 Kd7 Kg4 c5 Kh5 e5 b4 a5 f4 c3 b5 g4 g7 h6 Kg6 h5 Kf7 c2 b6 e4 b7 a4 f6 a3 f5 e3 Qe1 e2 Nc3 h4 Nb5 h3 Rb1 h2 Nh3 Rh7 Nf2 Ra5 Bb2 c1Q Be5 Na6 b8Q Qc2 Qb6 Kc8 Rg1 h1N Bh2 Bd6 Rb4 Bf4 g3 Nb8 Bg2 Ra6 Qa1 Rh8 Rgb1 e1B Qe5 Qd3 Qe8 Rh6 Kf8 Qe4 f7 Nf6 g8R Nh5 f6 Qh7 Rg5 Rg6 Re5 Ra8 Re3 Ra7 Nd1 Bf2 Rd3 Bd4 Nf2 Bb2 Rd1 d4 Ba8 Nc6 Bb7+ Kb8 Nh3 Nf2 Rb1 Nd1 Nf2 Ra8 Ne4 Ra4 Qa5 Rg5 Qb6 Re5 Qa6 Qf5 Kg8 Ne3 f8N Bh6 f7 Ra5 Qd7 Qh4 Ng6 Re7 f8R+ Re8 Qb6 Ra6 Qa5 Bg5 Qe7 Rb6 Ba8 Kc8 Qe5 Nb8 Bb7+ Kd7 Qa6 Re7 Re8 Bf4 Nf2 Qe4 Kf8 Rbe6 Nh8 Qh7 Qb6 Rg6 Qe4 Nc2 Qh1 Re1 Nf7 Ne3 Qf1 Rc1 Qe2 Rh1 Qd1 Nf5 Re1 Ne3 Qe2 Nf1 Red1 Nf6 Qe1 Nh5 Bc6+ Kc8 Ne5 Qc7 Bg2 Qh7 Bb7+
1nnQb2k/B2R1qQ1/2B3Bp/1Np1bp2/1B2rPN1/7p/1bPK3P/q1rR1R2 b - - 1 3 illegal: No possible last move, all moves rejected
2nk1bqn/R2Bp3/1pP3BR/4Pq2/1P1pQ2p/4NQB1/rb1Q2Nr/3b1K1Q b - - 0 1 illegal: No proof kernel
B1NNB3/1K2pqqp/1p1NrRn1/1PrQ2pR/k2Q2P1/7P/1N5b/nr1b2B1 b - - 0 3 legal: proof: c4 d5 cxd5 f5 b4 a5 e4 Kd7 exf5 Ra7 b5 Ke8 Qg4 Ra8 Qb4 axb4 Ke2 Kd7 Kd3 g5 Kc4 c5 d4 b3 f4 b2 a4 Qa5 g4 Ra7 f6 Qc7 d6 Qb6 Kd5 c4 f5 c3 f7 c2 f6 Bg7 f8Q Qa6 f7 Bh6 a5 Qb6 a6 Qd8 Nd2 b1R Bc4 Bg7 Ne2 Nc6 Ng3 Ne5 Nf5 Nh6 Qg8 Qa5 f8N+ Kd8 d7 Kc7 d8N Kb6 Nd6 Ra8 a7 Qa2 Nd7+ Ka5 Nb6 Bf5 Nbc8 Ng6 Kc5 b6+ Kc6 Be5 d5 Ka4 Kb7 Bf4 Ba3 c1Q Bc5 Qc3 Bg1 Qg7 Bd3 Re1 N2c4 Re6 Rf1 Be4 Bb1 Bc2 Rf3 Be5 Rf6 Nf5 Qf7 Bb3 Bc2 Ne3 Be4 Nf8 Bg6 Nc2 Qg8 Na1 Be8 Bg3 Qf7 Re1 Qe6 Ng6 Qe3 Be5 Qd4 Rb1 Nf5 Bc2 d6 Rg8 d7 Bd1 Nfd6 Qf2 N8f7 Qf4 d8Q Qf5 Qd7 Qe6 Nd8 Qef7 Qf5 Bg3 Qfd5 Rb8+ Ka6 Rb7 a8B Rc7 Rf2 Be5 Rf6 Rc5 Kb7 Nh4 Rh6 Ng6 h3 Rf8 Rh2 Bf4 Rf2 Bh2 Rf6 Qfg8 Rf1 Rf6 Rh5 Re6 Rf6 Q8f7 Nb2+
1r2kB1N/1Q1QbnpP/1pp1qn2/r1prR1Q1/B2Q2P1/1K5N/2P3R1/3N1b1q b - - 0 1 illegal: No proof kernel
1qB2n2/Q2pp3/K1pb4/pBN1P3/Q2nNkR1/1bN1R1r1/q2P1P1B/2qr3N b - - 0 1 illegal: No proof kernel
4r3/1p1bn1b1/1B1B3b/1P2N2r/P1QQqp2/p3pQ2/kbB1P1n1/B1RN2KR b - - 0 1 illegal: No proof kernel
K6Q/1rN1Q2B/n1bpPb1B/bq4k1/Q3ppbN/1p1P4/1Pn4Q/R3r1RB b - - 0 1 illegal: No proof kernel
k1q3B1/p5b1/n1b1RQ1n/Prn1Nr1R/2p4p/N1B1P1n1/QpP4K/1R3QQ1 b - - 0 1 illegal: No proof kernel
B3k2q/Q3nb1p/2p1ppn1/QRRnn3/1bPN1r2/3QPP2/r3Q1R1/B1NK4 b - - 1 3 legal: proof: d4 g5 h4 gxh4 a4 b5 axb5 c6 d5 Ba6 d6 Qc7 dxc7 Bc8 g4 a5 b4 d5 b6 f6 b5 h3 f3 e6 e3 d4 b7 d3 g5 h2 g6 a4 b6 a3 g7 a2 Nd2 Ba3 Rb1 a1Q Qe2 Qc3 Bb2 Bc5 Kd1 Bb4 Nb3 d2 Nd4 Ra2 Ba1 Nd7 b8Q Qa3 b7 Qa8 Qa7 Ne5 b8Q Ne7 Qa5 Rg8 Qba7 N5g6 c3 Bd7 c8Q+ Kf7 Qca6 Be8 Qad3 Qd8 Nh3 Qc8 Rg1 h1N Rg2 Qa8 Nf4 Qd8 Rb2 Nf2+ Kc2 Ng4 Kd1 N4e5 Rg5 Rh8 g8R Qc8 Rg7+ Kf8 Rc2 Bf7 Rg2 Rg8 Rg5 Nc4 Rb5 Ke8 Rc1 Nce5 Rc2 Nh8 Rg2 Rg6 Qc4 Rg4 Nd3 Re4 Nc1 Rf4 Qcd3 Qa8 Rb2 Nhg6 Rc5 Ba3 Rbb5 Bb4 Qb8+ Kd7 Qbb6 Qh8 Qba7+ Ke8 Qc2 Ra3 Rb8+ Nc8 Qea6 Rh4 Ke2 d1N Ke1 Nf4 Bd3 Nh3 Qe2 Ra2 Qc4 Rg4 Qb3 Rh4 Ba6 Nf4 Bb7 Nfg6 Ba8 Rf4 Rbb5 Nce7 Qbc2 Nf5 Qcd2 Nfe7 c4 Nc3 Qdd3 Ncd5+ Kd1
3R1n2/R2q1NK1/3BrnRN/pb1R2pp/2pQ1r2/7k/PBPn3P/1nb1Q1B1 b - - 0 3 illegal: No proof kernel
7K/n2Q2pB/Npp1QR2/1P3R2/Rr1rnbPp/3brBqN/1QP1r3/1R5k b - - 2 3 illegal: No possible last move
2rR2B1/N2K1pbP/1p5R/2BQqP1b/2n2krb/5p1p/1Pn1B1NN/Q3b2N b - - 0 1 illegal: No proof kernel
1k1Bn3/pBbrb3/2Bq2N1/rRp1R1nN/P2B1K2/Q1NppQ2/2P3P1/2b2b2 b - - 0 1 illegal: No proof kernel
b6N/Bp5R/2q2pNK/3pbkB1/4Q1b1/Pbr2nnB/1P1pRP2/RrQB4 b - - 0 1 illegal: Other
8/kQ1nprn1/2B1P3/2RrN1b1/Nr1Q2Kp/QpQpq3/1b1PR1pP/B5N1 b - - 1 3 legal: proof: c4 b5 g4 f5 gxf5 a5 Nc3 b4 Nb1 Ba6 b3 Bb5 cxb5 a4 Bh3 axb3 Bg2 Na6 Bf1 Nb8 e4 h5 Ke2 d5 Kf3 Kd7 a4 Kc8 f6 Kb7 b6 c5 f7 g5 e5 h4 e6 d4 a5 d3 a6+ Kc8 a7 Kb7 Qc2 c4 Bb2 c3 Kg4 Qc7 f4 Qc6 f5 Bh6 f8Q Rh7 f6 Nd7 f7 Qc5 Ra5 Qe3 Qg7 Rd8 Ba1 b2 f8N Ka8 Qh8 Rf7 Ng6 Kb7 Qa4 c2 Qc3 c1B Ne5 Ka8 Rc5 Ngf6+ Kf5 Nh5+ Kg4 Ng7 Bg2+ Rf3 Qaa3 Kb7 Qd4 Ka8 Nc3 b1R Na4 Bb2 Qac3 Kb7 Qc1 Ka6 b7 Rf7 Nc3 Kb6 Bd5 Ka6 a8Q+ Kb6 Qc8 Ka7 Na4 b3 Qd1 Rc1 Bc6 Rc4 Qc1 Rb4 Qc7 Nf8 Qc3 Rd5 Qd6 Nd7 Nh3 Ka6 Re1 Ka7 Ng1 Ne8 Kh5 g4 Re2 g3 Kg4 g2 b8Q+ Ka6 Qd8 Bg5 Q8c7 Ng7 Qb8 Rc4 Qbb4 Ka7 Qa3 Rb4 Qc7+ Ka6 Qc8+ Ka7 Qb7+
1qnb2B1/2NBpK2/2Br1R1p/3n2Q1/2p1N2P/Pp6/1P1Bk2p/rQrR1b1R b - - 0 1 illegal: No proof kernel
2n2RBK/1PN3Nn/1p5k/1P1Np3/NpB1Q3/2p1bqrp/3BP3/Rb1r2Qr b - - 0 1 illegal: No proof kernel
1R3B2/b3RnB1/1Qnqp1p1/p1QQ2Np/k1r2N2/1bpr3P/P4PK1/1Q3Bb1 b - - 0 1 legal: proof: e4 d5 exd5 f5 c4 b5 g4 bxc4 gxf5 Bd7 Qb3 Be6 Qd1 Bc8 d4 Kd7 b4 h5 f6 a5 d6 Kc6 h3 Kb5 f7 c5 d5 g6 d7 Nh6 d6 Qc7 d8Q Ng8 d7 Bg7 f8B Rh7 Bb2 Be5 Ne2 c3 Qd6 c4 Nd2 c2 Qc5+ Ka4 b5 c1B b6 Nh6 b7 Nf7 Rb1 Qd6 Nf3 Nc6 b8Q Bh2 Bbg7 c3 Qdb6 Be3 d8Q Be6 Nf4 Bg1 Ng5 Bb3 Ke2 Ra7 Kf3 Rc7 Kg2 e6 Rd1 Qe7 Rd7 Qd6 Re7 Rc8 Qf5 Bc5 Qb1 Rh8 Q6c7 Ba7 Qbb6 Rb8 Qc5 Rb4 Q7b6 Rc4 Qa8 Nd4 Qad5 Nc6 Bd3 Bh2 Re1 Bg1 Bf1 Rg8 Re2 Rh8 Rb2 Rg8 Bh6 Rh8 Bfg7 Rd8 Bf8 Rd7 Bhg7 Qb8 Qc7 Bc2 Qf3 Rd3 Qfd5 Bd1 Rb7 Bb3 Q7b6 Qd6 Rb8
N3B3/k1q4P/b2p2pN/4b1Kb/NBp2rPR/1Q1BRp2/pnQP1B2/1rn5 b - - 0 1 illegal: No proof kernel
1nk4r/1p1N1Q2/ppNR2NB/1qb1P2Q/8/PP1p1r1B/q1R3Rp/1N1K1b1n b - - 0 1 illegal: No proof kernel
r1bb2QN/1Bp2r2/1Q3nrB/1nK3p1/R1P1p2k/p2QR1P1/p3P1B1/1N1n2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
B4R2/1nrR1Np1/1p4N1/3pKpqn/1RbP1PP1/Q2bB1pN/rQ2pR2/3k4 b - - 1 3 illegal: No proof kernel
1R1Q4/pKQp1b1k/p1N2bpN/B1pP3q/P1r5/1NPp1R1B/4Qr1n/1b1Q4 b - - 0 1 illegal: Other
KNr2N1B/N2P2N1/B2prp2/nrPR2N1/N6r/3P4/2Q4p/n1R2n1k b - - 0 1 legal: proof: h4 b5 f4 g5 hxg5 e5 Nf3 b4 Ng1 Qf6 b3 a5 a3 exf4 axb4 a4 Rh5 a3 Rh2 Ra7 Rh1 Ra8 c4 d6 c5 Qd4 Rh6 Bd7 Rh1 Ba4 bxa4 Ke7 Qc2 Bg7 Qd1 Qe5 Ra2 Qe6 Ra1 Qd7 c6 Bd4 cxd7 c5 Rh6 c4 Rh1 Bc5 bxc5 Ra7 Qc2 Ra6 Qd1 Ra8 Kf2 Ke6 Kf3 Ke5 e4 h5 g4 a2 g6 h4 g5 h3 a5 c3 g7 c2 g6 h2 a6 Rh4 a7 Nc6 Bb2+ Ke6 e5 Kd5 e6 c1R e7 Rg4 e8N Nd8 Ba6 Nh6 g8N Nc6 g7 Rg5 Nc3+ Kd4 Nh3 Rf5 Nb5+ Kd3 Ng5 Rf6 Ne7 Rc8 g8N Rc2 a8N Nb8 Ng7 Rc4 Nc6 Re6 Nf6 Nf5 Nba7 Ne3 Nfh7 Nf1 Rc1 a1N Rg1 Re7 Nf8 Re6 Nd4 Nc6 Nb6 Na5 Ndc6 Ra8 Na4 Rc8 Nb5 Rb4 Nb8 Rb3 Na7+ Rb5 Rc3+ Kd4 d3 Ke5 Qc2 Kd4 Kg4 Ke3 Kf5 f3 Rg4 f2 Rd4 Rc6 Rd5 Rc8 Nh3 Kf3 Ng5+ Kg2 Kf4 Rf6+ Ke4 Re6+ Re5 Rf6 Kd5 Rd8 N7e6 Ng3 Qd1 f1R Rc1 Rc8 Qc2+ Kh1 Rf5 Rh6 Bh8 f6 Ng7 Re1 Re5 Rh4 Rf5 Nc4 Re5 Nf1 Rf5 Rd8 Kc6 Re6 Rd5 Rde8 Nb6 Rd8 Kb7 Rc8 Ka8 Na5 Na4
1K1b3B/2N3Bp/4P1r1/2rkPn2/1B2n1NB/2qn4/1Bb2Pr1/B1nRQR2 b - - 0 1 illegal: No proof kernel
1bn3R1/1k6/1n1NP1np/1KP1BQ2/1n1P1p1R/3N1nqR/1Rq3b1/1B1R1R2 b - - 0 1 legal: proof: h4 a5 a4 e5 f4 exf4 c3 b5 axb5 g5 hxg5 d5 Ra2 d4 Ra4 d3 Ra1 Ra7 Nh3 c5 Na3 c4 Ng1 h6 Nb1 Rd7 Rh2 Rd4 cxd4 c3 Rh4 c2 Rh1 Rh7 Ra3 Rg7 Ra1 Rg6 Nf3 Rc6 Ng1 Rc3 dxc3 Be7 Rh4 Bb4 Rh1 Bf8 Kd2 Kd7 b4 Kc7 e4 f5 g4 f3 e5 a4 e6 a3 c4 f2 Kc3 d2 b6+ Kc6 g6 a2 c5 Bb7 Kc4 Ba8 b7 Bd6 g5 Qf8 b5+ Kc7 g7 Qc8 b6+ Kc6 g6 Bf4 Qg4 d1N Ne2 Bd6 Rh3 Na6 b8R Nb4 b7 Nc3 Nd2 Ne7 g8R Qc7 g7 Ncd5 Ne4 Nc8 Bf4 c1N Be5 Ncd3 Rd1 a1Q Nc1 N3f4 Bd3 f1N Bb1 Qa4 Nd3 Nh2 Rh4 Nf3 Rf8 Ng6 g8R Qg7 Rf6 Kc7 Qg5 Qc2+ Kb5 Ndb6 Qg4 Nce7 Rbf8 Nec8 b8R Nge7 Qh5 Qg3 Rh3 Bd5 Rg4 Ng6 Rgh4 Ba8 Rg8 Bb7 Ra8 Bd5 Ra2 Kb7 Rb2 Bb8 Nd6+ Ka8 Qg4 f4 Qf5 Nh2 Rf7 Bg2 Rb7 Nf3 Rbg7 Nf8 Rg5 Ng6 Rgh5 Ka7 Rhh1 Ka8 Rhf1 Ka7 Rh3 Ka8 R5h4 Ka7 Ne8 Kb7 Nd6+
RR2Q3/nbK4N/p1Rr1RPP/2nR1Rb1/4p3/4N2q/PBn3rp/4Bk2 b - - 0 1 illegal: No possible last move
N2n4/pbKNb1pr/1R2pk1P/q3n1N1/4R3/4PPb1/N1NBN1B1/5r1Q b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 a4 hxg4 axb5 c5 b4 f5 bxc5 f4 Qc2 f3 Qh7 Ba6 Nxf3 Bb7 Ng1 Bc8 d4 Kf7 Kd2 e6 Ke3 g3 Ke4 g2 Ke5 Be7 h4 Bd7 c6 Bg5 Kd6 Nh6 b6 Qf6 h5 Bd2 e3 Ng4 c7 Bc6 c8N Nh6 b7 Na6 b8N Ba4 f3 Nc5 Nb6 Qf5 Rh4 Re8 Re4 Na6 Na3 Re7 N8d7 Qh3 Nc2 Bb5 Rb1 Rh8 Ne2 g1B Na8 Bf2 Bg2 Bc6 Rb6 Nc5 Kc7 Bb4 d6 Qf5 d5 Nb7 Bd2 Ng4 h6 Bg3 Qg6+ Kg8 Qh5 Rh7 Qh1 Re8 Nb8 Ne5 d7 Kf7 d8N+ Kf6 d6 Bc5 d7 Be7 Nf7 Nd8 Ng5 Rf8 Qh2 Bb7 Qh1 Ndc6 d8N Rg8 Ndf7 Rd8 Na6 Rd4 Nab4 Nd8 Na2 Rd3 Ba5 Rd1 Bd2 Rf1 Nh8 Qg4 Ng6 Qh5 Nf8 Qe8 Nec3 Qa4 Ne2 Qa5 Nd7+
B2NK2k/pNRN1n2/2N2N2/B4r2/3b2qP/q1pp1bPP/2r2N2/3R1Q1q b - - 0 1 legal: proof: d4 b5 a4 g5 axb5 d5 c4 h5 g3 g4 cxd5 e5 Ra5 exd4 Ra4 h4 Ra1 Na6 Na3 Nc5 Nb1 Ne4 gxh4 g3 Qd3 g2 Qd1 Ng3 fxg3 Qe7 Ra6 Qd7 Ra1 Qd8 Kf2 f5 Kf3 Kf7 Kf4 Kg7 Ke5 c5 b4 f4 e4 d3 b6 c4 d6 f3 b7 f2 b8N Ba6 Ke6 Nf6 b5 Rh5 e5 Rh8 b6 Rg8 d7 Bb5 b7 Ne8 Nc6 Qg5 d8N Rc8 Kd7 Qg6 b8N Ba6 e6 Qf6 e7 Qg5 Nc3 Qa5 Ne4 Nd6 e8N+ Kh8 N4f6 Bg7 Bd2 Qa3 Nh3 g1Q Bg2 f1Q Nf2 Rf8 h3 Qe2 Rc1 Bb7 Qf1 Nf7 Nd6 Qg4+ Ke7 Qh2 Nbd7 Ba8 Rg1 Qh1 Ba5 Rc7 Qe2 Rc8 Rgd1 Bb7 Qf1 Ba8 Nb4 Bf3 N6b7 Rc5 Nbc6 Rf5+ Ndc5 Re8+ Kd7 Re2 Rc3 Rc2 Ke8 Bf8 Ncd7 Bc5 Rb3 c3 Rb5 Bb6 Rc5 Be4 Ncb8 Bf3 Rc7 Be3 Nbc6 Bd4 Nbc5 Qg1 Nce5 Be2 Ba8 Bf3 Nec6 Qh1 Ncb7
8/P1BP1q2/N2nr1pp/1B2Qk1P/6R1/B1p1p1nN/1r4nR/1BKBBb2 b - - 0 1 illegal: No possible last move
bQB1R3/k1n2b1r/1N1B2bN/3PrN2/1P1P2N1/1KRb3n/3N2Nb/2b1qb2 b - - 0 1 illegal: No possible last move, all moves rejected
2BN1K2/n1k2Prr/R3N3/Rb5r/Rn4Pr/2b1P1qR/1n1R1B2/1R3qQb b - - 0 1 illegal: No proof kernel
N1B5/r1Q2Nbk/1b1p3P/BN1KPPr1/qNN2R2/1qRb2n1/1N6/2rn3n b - - 0 1 illegal: No proof kernel
r1BR2k1/N2p4/q1R1R3/Pn2bKBR/1R3b1r/nbq1P2P/2rR4/1NQn4 b - - 0 1 illegal: No possible last move, all moves rejected
R6q/3nBr1R/1Q2K1br/1rN2BNb/1rPP1p2/1rP2N2/5nk1/1N1NbN2 b - - 0 1 illegal: No proof kernel
K1N3n1/3nQ2B/1N1NPBbp/kN3NP1/3P3n/2nNr1bb/1q1R1n1r/R7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 g4 Kb6 b4 a5 d4 f3 d6 f5+ Kd5 h6 e4 f2 e5 f4 g6 f3 d7 c4 g7 a4 Bg5 a3 Bf6 a2 g5 c3 Qe1 c2 Rh2 c1N Nh3 Qc7 d8N Bg4 Nc3 Qe7 Bd3 f1B Nf7 f2 Nd6 Bge2 Bh7 Bd3 Nf4 Bg6 Nd3 Bh3 e6 f1N Rd2 Ne2 Qc1 Nh2 Qa3 Kc7 Kc5 Nd7+ Kd5 Ng4 b6+ Kb8 Kc6 Nf2 Ncb5 Nc3 b7 Ra7 Rf1 a1N Rg1 Nb3 Ra1 Ne5+ Kb6 Nf3 Kc6 Nc5 Kb6 Qf7 Kc6 Ne7+ Kb6 Nh4 g8N Ned5+ Kc6 Nd7 Ne7 Bg7 Nef5 Rc8+ Nc7 Ra4 b5 Ka7 Qb4 Ra3 b8N N7b6 Nd7 Ne7+ Kc5 Ng8 Kc6 Nba4 Nb6 Nc5 Rc2 Ra8 Rd2 Nd7 Nbc8+ Kb8 Bd8 Be5 b6 Bg3 b7 Ra2 Ncb5 R8a3 Bf6 Qf8 Nf7 Rb3 Qa3 Qb4 N7d6 Rc2 Qa5 Ra3 Qd8 Qb2 Qe7 Ne5+ Kb6 Rb3 Ka6 Nd7 Na3 Kc7 Ka7 Kc6 Ka8 Kc7 Nab5+ Kc6 Nca7+ Kb6 b8N Ra3 Ne1 Ka5 Nac8 Rc1 Nd3 Rh1 Na6 Rh2 Nac5 Ncd1 Na4 Rc3 Ndc5 Re3 Nd3 Nc3 Nab6+
4n2n/br1rpN2/B3P1P1/B2Rb2N/b1n1P2B/Qq2k1Rb/2B1Bb1K/3B4 b - - 0 1 legal: proof: c4 g5 e4 a5 f4 d5 h4 dxc4 hxg5 Bg4 b4 Qd6 bxa5 Qe5 fxe5 Bc8 Kf2 Kd7 Kg3 Kc6 a4 Kc5 a6 Kd4 e6 h5 g6 c5 a5 b5 g7 f5 a7 c3 a6 c2 d3 f4+ Kh2 h4 g4 h3 g5 c4 g6 f3 Qd2 f2 Ra4 b4 Na3 c3 Be2 f1B Nc4 b3 Ra5 b2 Nd6 b1N Nf7 Nf6 g8B Na3 Bb2 Bg7 Qc1 Nc6 Rb5 Rb8 a8B Nd5 a7 Bd7 Bb7 Nc7 a8B Nc4 Ba6 N6e5 Bc6 Rb7 Qa1 c1B Qa3 Ke3 d4 Bd2 d5 Be1 d6 Ne8 Rd5 Bf2 Ba4 Bc6 Bad1 Ba4 d7 Rh5 Nh8 Nf7 d8B Bd4 Ba5 Ba7 Bc2 Rf5 Bed1 Bg2 Ne2 Rf3 Bb3 c2 Bf6 c1B Rg1 Bb2 Bh4 Be5+ Nf4 Bf1 Rg3 Rd7 Kh1 h2 Nh5 Bh3 Bdc2 Ng5 Nf7 Rb7 Nd6 Nf7 Bd1 Nh8 Bf7 Rd7 Bbc2+ Bc3 Bb5 Rb7 Bd7 Ng7 Rdg5 Nb2 Bc7 Bg1 Bb5 Kf2 Bc4 Rd3 Be8 Bf6 Bd7 Ne8 Nf7 Bg7 Rb5 Be5 B2b3 Rd6 Bd3 Nc4 Ba5 Rd4 Bc6 Rdd7 Rc5 Ncd6 Bcb5 Nc4 Bf3 Ke3 Rd5 Bf5 Ba6 Bg4 Kg2 h1Q+ Kf1 Qh2 Bbd1 Qb2 B3c2+ Qb3 Kg2 Bf2 Kh2 Bh3 Bfe2+
BbR5/R3k2P/1K1PrrR1/2R4p/2b1Q3/5nR1/1P1brnNn/N2nBqR1 b - - 0 1 illegal: No possible last move
2Brb1KB/NP1PR2B/PRr5/8/NrB1q1n1/1n2b1nk/B2r1bp1/5Q1B b - - 0 1 illegal: No proof kernel
1N2Qb1B/npKNP3/R1nn1NBP/1r6/1R2NN1b/rr6/P1b1nNk1/5q2 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 Kd7 Kg3 c5 Kf4 f5 e4 b3 d4 g6 h4 c4 h6 b2 h5 c3 h7 c2 d6 Ke6 d5+ Kf7 d7 Ne7 d6 Ke6 Bd3 Qc7 d8N+ Kd7 Nf7 Ke6 d7 Nec6 Nh3 Na7 Qe1 Qc4 Nf2 Nbc6 Nc3 b1R Bb2 c1N h6 Rg8 h8N Rg7 Bc2 Qf1 Rh3 Rg8 Rd3 Rg7 Rd4 Rg8 Ra4 g5+ Kg3 g4 Kf4 g3 Ra6 g2 Ng6 g1B d8N+ Kd7 e6+ Kc7 e5 Ne2+ Kf3 f4 Ke4 f3 e7 Bf5+ Kd5 Bh2 e6 Bg3 Nce4 Bh4 Bf6 Rb3 Nf4 Rg5 Bh8 Rh5 Rb1 Bg6+ Kc4 Rhb5 Ne5 Bf5 Nd7 Bg6 Ng3 Kd6 Rb2 Bf5 Bb1 Bc2 e8N+ Ke7 Nef6 Kd6 Nc5 Ke5 Nge4 Rd3 Rb4 Rb3 Qd2 Kf5 Qd7 Ke5 Qe8 Kf5 Nh1 f2 e7 Ke5 Ncd7+ Kf5 Ng8 Kg4 Ngf6+ Kf3 N6h5 Qd1 Nhf6 f1N Nhf2 Qc1 Rb6 Nfg3 Ra6 Ncd4 Nc6 Ngf5 Ncb8 Ndc6 N4h5 Qf1 Nf4 Rb6 Kd5 Nd6 Ke6 Rb5 Ng3 Bd1 Bg6 Bc2 Nge4 Nac8 Rb6 Raa3 Ra6 N8a7 Nb6 Ra4 Kd7 Raa5 Kc7 Raa3 N4h3 Kg2 Nb6d7 Kh2 Nf4 Kg1 N4d3 Kg2 Nf4+
3q3n/3BpR1N/5qn1/RK2P1kr/P1P5/1bqRr1qQ/1qR4B/RbNR4 b - - 0 1 legal: proof: d4 g5 g4 a5 f4 c5 dxc5 Nc6 fxg5 Qc7 b4 axb4 h4 Nd4 g6 Ra4 g5 Nc6 h5 Ra8 h6 Bg7 hxg7 Nb8 Nc3 Qb6 Nb1 Qd8 Kd2 h5 Kd3 d5 e4 f5 c3 b5 c6 h4 c7 h3 a3 b3 e5 d4 Qh5 h2 Qh3 b4 Kc4 f4 Ra2 f3 Bd3 b2 Ra1 b3 Bf5 d3 Kb5 d2 Ne2 d1Q Nd2 b1Q Nc4 f2 Bf4 f1Q Nc1 Be6 c8R Nh6 g8R+ Kd7 g7 b2 g6 Qd4 Rc6 Nf7 Rf8 Rh5 g8R Nh8 g7 Qc2 Rg1 b1B Rf7 h1Q Bh2 Qhf3 a4 Qg3 Bg4 Qf6 Rd1 Ra7 Re8 Rc7 g8R Qdd2 Ra6 Rc6 Ra5 Qb2+ Nb3 Rd6 Bf5 Rd3 Nb6+ Kc7 Nd7 Re3 Nf8 Nd7 Rg4 Kc8 Rb4 Qdc2 Nc1 Bb3 c4 Qcc3 Ne6 Nf8 Rd3 Nfg6 Nf8+ Kc7 Rd1 Qa8 Red8 Qc8 R8d3 Qd7+ Kc5 Kd8 Rb6 Ke8 Bg4 Qd8 Kb5 Qff4 Rbf6 Qg5 Rff1 Q5h4 R7f2 Qf6 Bd7+ Kf7 Rc2 Kg7 Rff2 Kh6 Rf3 Kg5 Rff2 Qg7 Rf7 Qf6 Nh7+
3NN1Bk/q3r2r/1n2rPB1/n1N5/2r1pq1q/1N1NPQ1P/2b1N3/3R1KbR b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h6 g4 Kf7 gxf5 Ke8 Bg5 hxg5 c4 Kf7 f4 e5 b4 a5 c6 d5 h3 g4 b6 g5 c7 Kg7 c5 d4 b7 a4 b5 d3 c6 d2+ Kf2 g3+ Kg2 a3 b6 Nd7 b8N g4 b7 a2 Na6 Bc5 b8N Ne7 Nb4 Ra4 N8a6 Nb6 Qb3 Bd7 c8N e4 c7 d1R Qf3 Rd6 Nd2 Nc6 Rd1 Rdh6 Nd6 R8h7 c8B Kh8 Ne8 Qh4 Nf6 Bf2 e3 a1Q Ne8 Re7 Bd3 Rhh7 Bc4 Qe5 Nc5 Na5 Bd5 Bc6 Nbd3 Rc4 Kf1 Ba4 Bg8 Bc2 Bce6 Qb8 Bd5 Qa7 Bdf7 Re6 Ndb3 Re7 Bh5 Re6 f6 Rhe7 f7 g2+ Ke2 g3 f5 Qf4 Kd2 Qh4 Ne2 g1R f6 Qf4 Nc3 g2 Ke2 Bh4 Nb7 Bf2 f8N Rh7 Nd8 Rhe7 Nd7 Rh7 Rc1 Rd1 N3e5 g1Q Ndc5 Qgg5 Bg6 Rdd7 Kf1 Rde7 Rd1 Qgh4 Ned3 Bg1 Ne2
2Q1n3/2r1b2q/NBP3B1/4B3/PB1N1K1B/1n1rP1rb/2p1R1qr/RB2k1b1 b - - 0 1 illegal: No proof kernel
3Q2Rb/1r1bB2n/2Pqn3/3k1Bp1/5Rn1/1RP4R/rqRnPbK1/R1N4N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Nf6 axb5 Ng8 Kf2 Ke7 h4 Ke6 b4 f5 h6 g5 b6 a5 c6 d5 b5 f3 b7 f4 b6 d4 h5 a4 h7 a3 h6 d3 Qe1 a2 Qd2 Qd6 Rh4 Nf6 Nh3 Nbd7 b8R Nc5 b7 Kd5 Ba3 Bd7 Qd1 Ne6 Nd2 Ra7 Nb3 d2 Kg1 f2+ Kg2 Ra8 Nc1 f3+ Kh1 Qe5 Rf4 Qb2 Be7 Ra4 Bg2 f1N Nf2 Ne3 Bh3 Neg4 Ra8 Rg8 h8R Nh7 b8R Rg7 Rg8 Rf7 Rb7 Bg7 Raa7 Bh8 Rb3 Ra6 Kg1 Ra5 Nh1 f2+ Kg2 f1N Rab7 Bd4 R7b4 Bf2 Rbc4 Ra4 Qe1 d1Q Qa5+ Nc5 Qd8 Ne6 Rcc3 Qd4 Rc4 Nd2 Rcc3 Qe5 Rcc4 Qd6 Rcc3 Nhf6 h7 Ra3 h8R Nh7 Rb1 a1B Rcc4 Ne5 Bf5 Ra2 Rcc3 Ng4 Rcc4 Nhf8 Rhh3 Nh7 Rcc3 Qba3 Rcc4 Bh8 Ra1 Qb2 c3 Qb1 Rb2 Rg7 Rc2 Qb2 Rb4 Bc8 Bf8 Rb7 Rb3 Bd7 Be7
2K1NNkr/Rn1R1P2/1Q1r2bR/1q1q2pR/3BB2P/1n6/3q1RPR/2n2bn1 b - - 0 1 illegal: No possible last move, all moves rejected
N1b1n3/rk3P2/bnPp2nQ/1B5q/BB2K3/3P1nRr/2BB1BN1/2Rq2q1 b - - 0 1 legal: proof: h4 c5 e4 g5 b4 gxh4 a3 f5 exf5 b5 Ra2 Bg7 Ra1 Bc3 bxc5 b4 Rh3 b3 Rh1 Bb4 axb4 Kf8 Rh2 Kf7 Rh1 Ke8 Ke2 h5 Kd3 a5 g4 e5 f4 a4 c4 a3 c6 b2 b5 h3 b6 h2 f6 a2 f5 h4 c7 h3 f7+ Ke7 f8B+ Ke8 f6 Ra5 g5 Qe7 b7 Qg7 g6 Ra3+ Nc3 b1N Ne2 Ra7 Rg1 h1B Nf4 h2 Nb5 Nc6 b8B Na3 Bb4 d6 f7+ Kd7 Ng2 Nce7 Ke4 Kc6 Qh5 Kb7 Qh6 Qh7 Rb1 a1Q Rb3 Qg7 Rg3 Rh7 Be2 Qh8 g7 Ng6 Bd1 Qb1+ Bc2 Qa1 Ba4 Nf6+ Ke3 e4 g8B Ne8 Rd1 Ra6 Ba7 Qb1 Bd4 Ra7 c5 Qc2 Rg1 Qd1 Re1 Qe5 Rf1 Rh8 Bh7 Qeh5 Rg1 Nh4 Kf4 e3 Ke4 e2 Bf2 e1N Bf5 Nc4 Bd7 Ng7 d3 Nef3 Bcd2 Ng6 Bc2 Nb6 Be8 Bh3 Bd7 Ne8 c8B+ Kb8 Bc6 Bd7 Ba6 Bc8 Nc7 Rh7 Bab5 Ba6 Bd7 Kb7 Ne1 Bg2 Rh1 Bh3 Na8 Bg4 Rhg1 h1Q Ng2 Be6 Re1 Qg1 Bba4 Rh8 Bdb5 Bc8 Bf4 Qd2 Rc1 Qdd1 Bfd2 Qg5 Qf8 Rh3 Qh6 Qh5 c6+
rN1k3N/PnP1nR2/2r1R2b/3B1nNp/3BNnqq/3q3N/2P1bQ1N/7K b - - 0 1 illegal: No possible last move, all moves rejected
N2R4/4p3/R1r3N1/2k1nB1P/Bbb1P1PQ/1rnNK3/1Nbn3N/1n2Nq1b b - - 0 1 legal: proof: f4 b5 d4 h5 a4 c5 dxc5 h4 axb5 g6 Be3 g5 Bf2 Nc6 fxg5 Nb8 g4 Ba6 Bg3 hxg3 Qd3 Bb7 Qd1 Bc8 Kd2 d5 h4 Kd7 c4 a5 e4 f5 b4 d4 h5 g2 b6 Kc6 g6 d3 b5+ Kb7 g7 a4 Qe1 a3 Ke3 a2 Na3 d2 Nf3 d1B Nc2 g1N Qh4 Bd7 Nh2 Rh6 Ne1 Nf6 g8B Be2 Be6 Bf3 Be2 Ra5 Bd1 Ne2 Ba4 Nc3 Rg1 Bg7 c6+ Ka8 c5 Qf8 c7 Kb7 c8N Bh1 Rg2 Nb1 Rd2 Nc6 Rd3 Be8 Rd8 Ne5 Bd7 Ra8 Be6 Rb8 c6+ Ka8 c7 Kb7 Bd7 Rg6 Be6 Bf7 Bd7 Bb3 Be6 Bc2 Nd6+ Ka8 b7+ Ka7 Bc8 Kb6 Nc4+ Kc5 b6 Bh8 Nb2 f4+ Kf2 f3 Bf5 Rh6 Ke3 f2 c8N f1B Nc4 Ra8 Nb2 Bc4 b8N Ra6 b7 Rb6 Nc6 Rb3+ Kf4 Qf7 b8N Bg7 Nb4 Nd5+ Kg5 Re6 Nb6 Rc6 Na8 Ndc3 Kf4 Bf6 Ke3 Bg5+ Kf2 Bd2 Nd7+ Kd4 Nf8+ Kc5 Ng2 Be1+ Ke3 Qf6 Be6 Qf1 Ng6 Na3 Rc1 a1N Bf5 Nab1 Rcd1 Ra3 R1d2 Nb3 R2d6 N3d2 Rf6 Rb3 Rfd6 Rc8 Ra6 Rc6 Nd1 Na2+ Rd3 Ndf3 Nb2 Bc3 Ne1 Nfd2 Nd5 Ba5 Ndf4 Nac3 Rd8 Bb4 Nfd3+
nn1K2B1/1N4q1/r1r3Rp/2b3n1/2P1NRnB/1N1Nkq1P/1P5N/1n3NnQ b - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 gxf5 b5 axb5 Nh6 e4 Ng4 f4 Nh6 f6 Kf7 e5 Ke6 f5+ Kd5 Ra6 Ng8 Ra1 Bb7 e6 Kd6 Bg5 Bf3 Bd2 Bh5 Bc1 Bf7 exf7 Qc7 Nd2 Qc8 Nb1 Qd8 Kd2 Ke5 Kd3 g5 Kc4 Ke4 Kc5 d5 c4 a5 b6 e5+ Kb5 a4 b7 a3 h3 g4 Bf4 g3 Bg5 d3 Bh4 g2 Nf3 g1N Nbd2+ Ke3 Bg2 d4 Nh2 h6 Bd5 Qe7 Kb6 a2 Qf1 Qa3 Kc7 e4 Kd8 Bc5 f8N Ra6 f7 Ne7 f6 Nc8 Qg2 Nb6 Rf1 a1N Rf4 Nc2 Be6 Rh7 Ng6 Qc3 f8N Rc7 f7 Na8 Ne5 Na3 Nh7 Nb1 f8N Rcc6 Bg8 Rab6 Nb3 d2 Nf6 d1N Nh5 d3 Nfd7 d2 Ndf6 Nf2 Ng3 d1Q+ Nd3 Ng4 Qf1 Qf3 Qe1+ Ne2 Rg1 Ra6 Rg2 Qe5 Qh1 Ng1 Ne8 Qg7 Nd6 Nd7 b8N Ra4 Na6 Nb8 Nab4 Ra7 Nf2 Raa6 Ngf5+ Ke2 Nbd3 e3 Nbc1+ Kd2 Ng3 e2 Nfe4+ Ke3 Nb3 e1N Nb7 Qf2 Rf6 Nef3 Rg6 Qf1 Rf2 Ng5 Rf4 Qf3 Ngf1+
B2bQ2K/1n2PB2/2bknn1p/1N4PP/1B1qB2q/R1n1B1r1/1R2q3/q1N1B3 b - - 0 1 illegal: No possible last move
2Nn2r1/1k1p3P/B6r/r2rBQbn/2P1R2R/B1nB1n1q/2KP4/1NBBq3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a4 b4 Nc3 Ba6 Nb1 Bb5 axb5 Qe7 Bg2 Qg5 Bf1 Qd8 h4 f5 c4 g5 e4 a5 h6 f3 e5 f2+ Ke2 a4 Kd3 a3 h7 f4 b6 f3 h5 g4 c6 b3 h6 b2 b7 a2 e6 g3 e7 g2 c7 Nf6 c8B Nh5 Ne2 g1N Rh4 Nc6 b8B Bg7 Nec3 Bf6 Bg3 Bg5 Kc2 Rg8 h8B Ra6 Be2 f1R h7 f2 Bd6 Nf3 Ba3 Qc7 Be5 Nd8 Bb7 Rh6 Bc6 Rg1 Ba4 f1Q Nd5 Qh3 Bb5 Rg4 Qf1 Rd4 Nb6 Rd5 Re4 Qc6 Bd1 Qce6 Bd4 Qe5 Nc8 Qeg3 Be5 Qe1 Nc3 b1N Qf2 Kf7 e8B+ Ke6 Rh4 Rd3 Bg6 Rd5 Na4 Nc3 Bd3 Ne2 Rb1 a1R Nc3 Ra2+ Rb2 Ra1 Nb1 Nc3 Rb3 Ra2+ Bab2 Ra5 Ba3 Nc6 Nd6 Ke7 Nc8+ Kd8 Qc5 Rhd6 Re4 Kc7 Qf2 Kb7 Qf1 Nh2 Qf5 Nf3 Rh4 Na4 Be4 Re6 Re3 Rh6 Bd3 Nc3 Ree4 Nd8 Ba6+
N4n1q/6b1/Knn1B1PB/P2B1Br1/1bB1bq1R/P3p1r1/Q1B2N1p/R5k1 b - - 0 1 illegal: No proof kernel
q4bB1/1np2BkB/3pr3/2PB3r/1P3qQ1/Nn2bP2/2rq3B/1K1RBRN1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 h3 g5 Be3 g3 Ra4 g2 Nc3 g4 Nb1 g3 Ra1 Bb7 Bg5 Bf3 Bc1 Bg4 hxg4 Bd6 Na3 Be7 Nb1 Bf8 Kd2 Kf7 b4 h5 e4 a5 c4 d6 Kc2 a4 e6+ Kf6 e7 h4 e8B h3 g5+ Kg7 b6 a3 e5 a2 b7 h2 g6 Rh6 e6 Na6 b8B Qf6 e7 Nc5 Na3 Nb3 Bf7 Qf4 e8B Ne7 Ba7 Nc6 Bd3 Nca5 Bd5 Nb7 Bef7 Rh5 f3 Re8 Bd2 Re6 Rb1 a1Q Be1 Qad4 Qe2 Qa1 Rd1 Qc3+ Kb1 Qcd2 Bc6 Rc5 Bd5 Rc6 Qe4 Rc5 Ne2 g1B Bb6 Bd4 Rf1 h1R Ng1 g2 Qf5 Rh2 Qg4 Be3 B3e4 Rh5 Bd3 Kh6 g7 Rc6 g8B Rc5 Ne2 g1Q Bdh7 Qgg3 Ba7 Qh4 Bb6 Qd8 Ng1 Rc6 Bd4 Qe8 Bf6 Qa8 Bg5+ Kg7 c5 Ra6 Nb5 Ra2 Na3 Qe5 Bgh4+ Qg5 Bhg3 Rc2 Bfg6 Qf6 Bh2 Qf4 B6f7+
4nK2/2b4P/5nR1/1p2pN2/nQR1Nbb1/1P1BNP2/N3k2q/bN1rN1Br b - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 gxh5 f5 exf5 a4 cxd5 a3 b3 Rh7 Qc2 Rh8 Qb2 axb2 Ke2 Kd7 Ke3 Kd6 Kd4 b5 h4 g5 a4 e6 a5 c6 f6 g4 a6 g3 h6 g2 a7 Qe7 f7 Na6 h5 Rh7 Bd3 Bb7 Bc2 Nb4 Ra4 Rd8 a8N Rh8 h7 Bh6 f8Q Re8 Nc7 Na6 Nf3 g1B Rc4 Nc5 Ne1 Bg5 h6 Bh2 f3 Ra8 Rg1 Bgf4 Rg6 Kd7 d6 Ne4 Nd5 Ngf6 Ne3 Ne8 d3 N4f6 Kc5 Qg7 d4 Ra1 d5 Bc8 Bd2 Qe7 Ba5 Bhg3 Bb6 Qd8 Ba7 Qa5 Bb6 Qd2 Ba7 Qh2 Bb6 Rg8 h8N Rg7 Ba7 Rh7 Nf7 Be5 Ng5 Bc3 Nd2 Rd1 Nge4 b1N Bb6 Bce5 Ba7 Nc3 Nb1 Rg7 h7 Na4+ Kb4 Ba1 Bd4 Kd8 d7 Kc7 d8N Re7 Nb7 c5+ Ka5 Rg7 d6+ Kc6 d7 Bc7+ Ka6 e5 d8N+ Kd7 Nc6 Ke6 Nb4 Rg8 Rc3 c4 Na2 Rg7 Qb4 Rd7 N3g2 Kf5 Ne3+ Kf4 Ka7 Rd8 Nbd6 Bg4 Kb7 Ra8 Kc6 Rc8 Rd3 c3 Ndf5 Rd8 Bb6 Rd7 Rd5 Rc1 Rc5 Rdd1 Bd3 c2 Rc4 Rd2 Bd4 Rcd1 Ba7 c1B Bc2 Rf2 Bb6 Rf1 Bd4 Rh1 Bc5 Nd5 Kd7 Ndf6+ Ke7 Bd2 Kf8 Bc1 Nh4 Bd2 Nd6+ Kg3 Nhf5+ Kf2 Ne4+ Ke2 Nd5 Bdc3 Bg1 Bd2 Nde3 Bc1 N3g2 Bg5 Nge3 Bf4 Bd3+
7q/n4rp1/NN1R4/1q1nk1Q1/P1br1N1B/PNR1NK2/r1p4P/bN1Br3 b - - 0 1 legal: proof: g4 d5 e4 h5 c4 hxg4 cxd5 a5 b3 f5 exf5 a4 bxa4 Rh3 Ke2 Rh7 Ke1 Rh8 Ke2 Kd7 d4 Kd6 f4 c5 f6 e5 a3 b5 f7 c4 f5 b4 f6 e4 Qd2 b3 Nf3 c3 Ne5 e3 Nc4+ Kc7 d6+ Kd7 d5 g3 Kf3 e2 Qg5 e1R Be2 g2 Bd1 g1Q Ne3 Be7 f8N+ Ke8 d7+ Kf7 d6 c2 Ng6 Ke6 f7 b2 Bd2 Bf6 f8N+ Kf7 Bb4 Ra7 Nf4 Ba6 Ba5 Qc8 Bd8 Rh4 Be7 Bc4 d8N+ Ke8 Nc6 Kf7 Nb4 Nc6 Bd8 Nge7 Nd7 Nd5 Na6 Rc7 Nb6 Na7 d7 Qf1+ Ke4 Rg4 Rg1 Rb7 Be7 Qh8 Rg3 Qd3+ Kf3 Qb3 Ne6 Rd4 Nec5 Qb5 Nb3 Ke6 Bd8 Be5 Bf6 Rc7 d8N+ Kd6 Ne6 Rf7 N1d2 b1R Nf4 Rb2 Nb1 Nc3 Qh5 Ra2 Bh4 Nd5 Qg5 Bf6 Kf2 Qb4 Be2 Rdd1 Ng4 Ne3 Nc3 Rd3 Rd1 Qc5 Nb1 Qb5 Rd2 Ba1 Bd1 Nf5 Re3 Ne7 Kf3 Rd5 Rc3 Rd3+ Ne3 Rd5 Qg1 Ke5 Rg2 Rd7 Rg6 Rd4 Rd6 Nd5 Qg5+
1BB2Bkq/Q4N2/B2r1npB/1qbr2R1/1P2P2p/1RNb2Pq/1K6/4B1rb b - - 0 1 legal: proof: f4 b5 h4 e5 a4 exf4 axb5 d5 c4 g6 cxd5 Na6 h5 Nc5 h6 Ne6 Ra6 Ke7 Ra1 Ng7 hxg7 Ke8 b4 h5 d4 f5 Kd2 Kf7 Kc3 c5 b6 a5 b7 a4 b8B c4 e3 a3 d6 f3 d7 a2 d5 f2 d6 f4 Kb2 f3 Qa4 Nf6 Nh3 Qe8 d8B Kg8 d7 Ra5 Nc3 Bc5 Be7 Bb7 d8B Qb5 Rb1 a1R Ng5 h4 Rg1 Ra6 Qa3 Rh5 Bdc7 Rd6 Nf7 Rhd5 Bf8 Ba8 Be2 f1B Qa7 f2 Bd2 Bc6 Be1 Bb7 Bg4 Bd3 Bc8 f1Q Bd8 Qf3 Bb6 Qh3 Bd8 Nd7 Bg5 Nf6 Bh6 Bc6 g3 Bb7 Rf1 Ba8 Rf5 Bc6 Na4 Bb7 Rg5 c3+ Kb3 c2 Kb2 Ba8 Nc3 c1Q+ Kb3 Qd1+ Kb2 Re5 Ba6 Bh1 e4 Red5 Ne5 Kh7 g8B+ Kh8 Be6 Qh5 Bec8 Kg8 Bhg7 Qh6 Nf7 Qh8 Bh6 Qb7 Kb3 Qb5 Rb2 Rb1 Ka2 Rd1 Rb3 Ra1+ Kb2 Rd1 Bd2 Rg1 Be1
5bqq/1P5P/pRK5/1Np1B2r/BQ1BB3/P2bNq2/BR3rqn/1B1q1k2 b - - 0 1 legal: proof: d4 h5 c4 b5 g4 bxc4 gxh5 e5 dxe5 Rh7 f4 Ba6 e4 Nc6 f5 Ke7 e6 Bc8 e5 Rh8 Qd4 Nb8 Qd1 Bb7 Bh6 Qe8 Bc1 Kd8 Bd3 Kc8 Bd2 Qe7 Bf1 Qd8 Bc1 Nc6 f6 Nce7 fxe7 Ba6 Ke2 Kb7 Kd2 Kc6 Ke1 Bc8 Kf2 Kc5 Ke3 g5 Ke4 f6 e8B a6 h4 c6 b4+ Kb5 a3 g4 e7 c5 Kd5 g3 e6 f5 h6 f4 h7 f3 h5 f2 h6 g2 Rh2 Qc7 Qe1 Rb8 Bg6 Qf4 e8B Qf3+ Be4 Rb7 e7 Nf6+ Kd6 Ng4 Nh3 g1Q Bfd3 f1Q Bf7 Qf1g2 Bf4 Rc7 Bc2 c3 Be5 Rc6+ Kd5 Rf6 Nf4 d6 Ra2 Bf5 Rb2 Bg6 Rh5 Nh2 Be6 Bf5 Bf7 Qg8 Ng2 Bg6 Ne3 Qgg2 Rh4 Rf5 Rf4 Rh5 Rf6 Rf5 Bb3 c2 Ba2 c1Q Re6 Qc3 e8B+ Kb6 b5 Ka5 Kc6 d5 b6 d4 b7 d3 Rb4 d2 Rb2 d1Q Qh4 Qcd4 Nc3 Rf4 Nb5 Bf5 Bed5 Bd3 Bb1 Ka4 Be4 Qc3 Rd2 Kb3 Bd4 Qa1 Rb2+ Ka4 Qe1 Bd6 Kd7 Q8g5 Ra2 Rg8 h8B Kb3 h7 Qff2 Nc7 Bf8 Bb2 Qd5+ Rd6 Rg5 Bbg7 Rh5 Re2 Qc4 Rd2 Qf6 Rb6+ Kc3 Be6 Qfg3 B6d5 Rf2 Rdb2+ Rd2 Bdf7 Q3f3 Bg8 Qa2 Bb3 Qe5 Bef7 Qd4+ Kc6 Qe5 Ba4 Kd4 Nf1 Rf2 Bg8 Qaf7 Bf6 Qfg6 Bga2 Q6g3 Qa5 Qg8 Qb5 Kc3 Ne3 Qd4 Rb4 Kd2 Rb2+ Ke1 Qb4+ Qc3 Nb5 Qcd2 Nd5 Kf1 Bhg7 Qdg5 Bd4 Qh8 Bge5 Qgg8 Ne3+
1K2R3/2ppbQ1R/1N1R1Rb1/7n/b1P5/qkrP1r1B/5N1P/RbBb1q1R b - - 0 2 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 a4 b4 Nh3 Nc6 Ng1 Nd4 b3 Nb5 axb5 a4 Ra3 axb3 Ra2 Nh6 Ra1 Ng8 Kf2 Ke7 Ke3 Ke6 Kd4 g5 e4 f5 b6 b2 h6 g4 b7 b3 b8R g3 h7 f4 Na3 b1B Qh5 f3 Nc4 f2 Nh3 b2 Nb6 g2 Kc4 g1Q Kb5 Be7 c4 Ra3 Bg2 f1B Nf2 Be2 Bh3+ Bg4 Ra8 Rc3 R8a6 Qf8 d3 Bc2 Ka5 Nf6 Qg6 Rg8 h8R b1B Rh7 Ba4 Qe8 Rg7 Qh5 Qf1 Qf5+ Kf7 e6+ Ke8 e5 Bb7 Qf4 Nh5 Qf5 Be4 Qf7+ Kd8 Nd5 Bf6 e7+ Kc8 e6 Kb7 Rc6 Bgd1 Nb6 Rg4 e8R Qe7 Rg8 Qa3 e7 Rg3 e8R Rf3 Rce6 Be7 Rd6 Ka7 Rg5 Bg6 Rf5 Kb7 Rdd5 Kc6 Ka6 Bc5 Rd4 Be7 Rf6+ Kc5 Kb7 Kb4 Rdd6 Kb3 Kb8
3K3b/1R1B4/B2qbPB1/Q1Ppkbrb/2nBb1p1/2R2BPn/2Nb2B1/7N b - - 0 1 illegal: No proof kernel
4nnR1/1p4PR/3pB1Nb/B6P/1K1Pkn1b/N2qn2R/2rRRRb1/1b3Q2 b - - 0 1 illegal: No proof kernel
NKN1RbBN/1n2P2k/4pP1n/P3r3/1N4pB/r3q3/3NqN1p/qR1b3Q b - - 0 1 illegal: No proof kernel
1N5N/2qP4/1p2Np1Q/rr2Rn1K/2R1BNNb/2p3b1/k2P1P1N/B2b1nq1 b - - 0 1 legal: proof: c4 Nf6 b4 Ne4 c5 Nf6 b5 Ng8 b6 axb6 c6 Ra6 Nh3 Ra3 Ng1 Ra8 cxb7 d5 g4 h5 gxh5 Bg4 e4 Bd7 exd5 Bc8 Ke2 Kd7 Kf3 Kd6 a4 Kc5 h4 Kb4 a5 g5 a6 e5 d6 c5 h6 f6 h5 c4 a7 c3 h7 Na6 b8N Bh6 Na3 Nc5 Rh4+ Ne4 Bd3 Ne7 Bb2 Qc7 Nc2+ Kb3 Ra5 Ng3 Rc4 Nf1 Ba1 Nf5 Kg4 e4 Re5 e3 Nf3 e2 Nh2 e1Q Be4 Ka2 Ne3 Bd7 Qf3 Ba4 d7 Bd1 Qe2 Re8 h8N Re6 Qf3 Rd6 Qe2 Rd5 Ng6 Rb5 Qf3 N1g3 Nf4 Qg1 Kh3 Nf1 Neg4 Bf8 h6 Bd6 Re6 Be5 h7 Bd6 h8N Be5 Ng2 Bg3 Re5 Bh4 Qf4 Ba4 Nh6 Bc2 Kg4 Ba4 Nf3 Bd1 Kh5 g4 Nh2 g3+ N6g4 N1e3 Ne1 g2 Qh6 Nf1 Nd3 Qh1 Nf3 g1B Nf4 Bh2 Qf8 Rd5 Qh6 B2g3 Nfh2 Ra5 Nc6 Rc8 a8N Qg1 Nb8 Qd6 Bd3 Rcc5 Nc7 Rcb5 Nce6 Qc7 Be4
Qq2nbNr/2r5/pP3bb1/R2PNRpR/2R1pk2/3b1BR1/2P2B1K/3n3R b - - 0 1 illegal: No possible last move
n3R3/pnrqk3/1Pp5/1B4NR/1N1b3N/3PN3/QNKpP1nn/2Br2Nb b - - 0 1 illegal: No proof kernel
3R1B2/Qq2pB2/1Pp1n2K/2PRB1NN/1p1B1bk1/rrnP4/B1Brqr2/8 b - - 0 1 illegal: No proof kernel
2bnB3/2RPq2B/B2B4/P1pNp1P1/1N2k2p/K4nB1/RQp1r2n/Br4b1 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 c4 dxc4 h4 Qd7 hxg5 Qd8 d4 Kd7 Kd2 Kc6 Kc3 Kd5 Kb4 b5 g4 c5+ Ka3 h5 f4 e6 g6 c3 g5 c2 f6 Be7 f7 Ke4 f8B Kd5 g7 Ba6 f5 Qc7 f6 Qh2 f7 Qe2 Bf4 Nh6 g8B Qd2 Nf3 Ke4 d5 Ng4 d6 Nd7 Qc1 Rh7 Qb2 Rh6 Bg3 Nh2 Ne1 Qe3+ Nd3 Rb8 Bg7 Bc8 f8B Bf6 a6 Ne5 a7 Nc6 a8B Bd4 Bb7 Rf6 Ba6 Nd8 Bh8 Qe1 Nb4 Bg1 Be2 Rf2 Nc3+ Ke3 d7 h4 Bh5 Re2 Ncd5+ Ke4 Bfd6 Rb7 Be8 Rb8 Kb3 Rb7 a4 Rb8 Nd3 b4 a5 Rb6 Ka4 b3 Ra2 Rb5 Ka3 Rb7 Qf6 b2 N3b4 b1N+ Ka4 Ra7 Qb2 Nd2 Ka3 Rb7 Bc3 Be3 Rf1 Bg1 Rf6 Rb8 Qc1 Ndf3 Ba1 e5 Qb2 Qf2 Bc7 Qf1 Rc6 Qh3 Bd6 Qe6 Rc7 Qe7 Ka4 Rb6 Ka3 Nd2 Qb1 Nb3 Nc6 Nd2 Qc1 Rb1 Ncb4 Ndf3 Qb2 Rf2 Bf1 Rg2 Ba6 Re2 Bh7+
1RKBN3/pN1RP3/2npp1QP/2B5/1r2B1b1/3br1n1/p4bBP/q3B1kB b - - 0 1 illegal: No proof kernel
1NQ3N1/2PnBrb1/2NNpR2/p5p1/bB2Nq1P/3rk2N/qR1n2Pp/7K b - - 0 1 illegal: No proof kernel
1qB3kB/3NKp2/N3pN2/pp1rq1R1/PPqbN3/1P4qN/N5bR/4n2Q b - - 0 1 illegal: No possible last move
N1B5/3RBKB1/1Q5p/1N1BB1pR/qrP4p/p2pP1k1/PB1n4/rnr3b1 b - - 0 1 illegal: Other
3B2R1/1pkR4/p1bpK1p1/P1N2R2/2QR1rPn/1PpN3b/1pr5/R4rRB b - - 1 3 illegal: Other
Knqnr3/3q3n/1Np2Br1/1RP3Bb/1P4Bp/2RN1BB1/1qB4P/2kr2bQ b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 a5 f4 h5 b4 g5 c4 d6 b6 g3 e6 g4 b7 g2 e7 a4 e8B h4 Nc3 a3 Na4 g3 Bh5 a2 Bf3 Ra6 Nb6 Qd7 Nh3 g1Q e3 g2 c5 Nh6 B1e2 Bg7 Qf1 Bd4 e4+ Kg6 e5 Kf5 e6 Re8 e7 Nf7 Bb2 Nd8 Bd1 Be3 Bf6 Qf2 Rc1 g1N Rc3 a1Q Bg5 Qfb2 Bb3 Rf8 e8B Bf2 Beh5 Re8 Qd1 Bd4 Qe1 Qd1 Bc2+ Qd3 Bfd1 Nf3 Bf6 Ng5 Bdf3 Nh7 Bhg4+ Kg6 f5+ Kh6 Nf4 Bg1+ Bd4 Kg5 f6 Qg6 f7 Qg8 Be3 Qh8 f8B Qg8+ Kd4 d5 Bg7 Qh8 Na4 Rg6 Nb6 Na6 b8B c6 Bc7 Nb8 Qa1 Ne6+ Ke5 d4 Qc1 d3 Bf6+ Kh6 Qd1 d2 Qc1 d1R Bd2 Qdg7 Kd6 Nd8 Qb1 Be6 Qc1 Bf7 Qb1 Be3 Re1 Bg1 Re7 Na6 Kd7 Nb8+ Kc8 Qhg8 Bd6 Q8h8 Ra7 Qhg8 Ra5 Q8h8 Bd4 Kg5 Rb5 Qhg8 Bf2 Qd4 Be5 Qd3 Bg3 Qh8 Bh5 Kf5 Bfg4+ Ke4 Bf6 Qg8 Nfd5 Qh8 Bdg5 Qg8 Nf4 Ke3 Bf3 Kd2 Bhg4 Qd5 Qa2 Qd3 Qd5 Kc1 Qe4 Ne6+ Kb7 Qd7+ Ka8 Nd8 Qd3 Qc8 Qf1 Qg7 Be7 Qd4 Bef6 Qdd7 Qe1 Rh6 Qf1 Bh5 Qg2 Rg6 Qf1 Be3 Qh1 Bg1 Nd3#
2r4r/3pB3/1R1P4/K1B2k1n/PB4np/1Qr1BRrP/nB3NBq/2N1bbr1 b - - 0 1 illegal: No proof kernel
4r1QK/1pbNP3/3nBB1b/R1qp2q1/B1k2R1B/3bBr2/NP1P2B1/3q1b1n b - - 0 1 illegal: No proof kernel forced: bxDB
2k3BB/nrn1R1K1/Qn2qRp1/N3PRp1/1Rb1p2N/1R2P1P1/4n3/rr2bR2 b - - 0 1 illegal: No proof kernel
4Rb2/K1N2RRq/2Nn3B/5n1r/3p2P1/1r1NP1Q1/R1nPkN2/3Br2b b - - 0 1 illegal: No possible last move
qN1B1r1n/1p1qr3/2N1QN1k/nK6/2P2p2/N2rR1P1/q2PB1R1/2R2R2 b - - 0 1 legal: proof: f4 a5 h4 d5 b4 axb4 a4 e5 fxe5 g5 hxg5 d4 Ra2 d3 cxd3 Bg7 Ra1 Bf8 a5 c5 a6 c4 a7 c3 Nf3 Be6 Ng1 Bc4 dxc4 Nd7 Bb2 Bd6 Bc1 Bb8 axb8R Nc5 Qb3 Na6 Qc2 Kd7 Qd1 Ke8 e4 Kf8 Ke2 Kg7 g6 h5 e6 f5 e7 h4 e8R c2 e5 f4 e6 b3 e7 b2 Nf3 h3 Ne5 h2 Nd7 Nb4 Qe1 Nf6 Na3 b1R Bb2 Na2 Kd3 c1Q Be2 Kh6 g7 Rh7 Kd4 Ng8 Kc5 Qc2 Bf6 Nb4 Rf1 h1Q Kb5 Rb3 Rc1 Rd3 Rc8 Nc6 Nb8 Na5 Rc5 Qh2 Rg5 Qh3 Rg3 Qe6 Re3 Qed6 g3 Qa2 Bh4 Nf6 Rh8 Qe6 e8N Nd5 Nf6 Ne7 Re8 Ng6 g8N+ Kg7 Bg5 Nh8 Ne7 Qed7+ Nec6 Kg6 R8e5 Re7 Bh4 Q8c8 Rh5 Qce8 Bg5 Qf8 Rh2 Qfd8 Bh4 Kh6 Rg2 Q8e8 Qf2 Qec8 Qf3 Qcd8 Qd5 Qf8 Qe6 Qg8 Na6 Rf8 Nb8 Rh7 Ne4+ Rf6 Na6 Qa8 Nb8 Rf7 Ref3 Rf8 Re3 Rg6 Bd8 Rgf6 Qf5 R6f7 Nf6 Re7 Qe6
k1R1rN2/4nP2/K5R1/2B1qR2/N2PnR2/2PNn3/3Qb1r1/bqqn1NB1 b - - 0 1 legal: proof: b4 b5 g4 d5 e4 h5 gxh5 f5 exf5 c5 a4 d4 axb5 Rh7 Bc4 d3 Bb3 Rh6 bxc5 Rh7 c3 Rh8 Bc2 dxc2 Ke2 Kd7 Kd3 Kc7+ Kc4 Kb7 h4 a5 d4 e5 f4 g5 c6+ Ka7 f6 e4 b6+ Ka6 c7 Kb7 Kb5 a4 f7 a3 h6 e3 h7 g4 f5 a2 f6 e2 h5 e1Q h6 g3 Rh4 g2 Be3 c1N Rf4 Ne7 Ne2 g1Q Qd2 Qgf1 Bg1 Rg8 h8R Bg4 c8N Nd3 h7 Nd7 Nc1 Nb2+ Nd3 Qe8 Rf5 Rg6 Rg8 Qc1 h8R Be2 Rf4 Rg4 Rg6 Rg2 Rh5 Nd1 Rhf5 Kb8 b7 Nc5+ Kb6 Bh6 f8N Ne4 f7 Bg5 Qc2 Qe1 Nd2 Qf1 Rb1 a1N Rbb5 Qe1 Nf1 Qb1 Qd2 Nc2 Rc5 Nce3 Rcc6 Qc1 Rbf5 Bh6 Kb5 Bg5 Nb6 Ka7 Nh7 Qb8 Na4 Qe5+ Rc5 Re8 b8B+ Ka8 Nf8 Bh6 Ba7 Qb1+ Qb2 Qd2 Ka5 Qdc1 Qd2 Nc4+ Ka6 Qcc2 Rh4 Bf4 Qe1 Bc1 Rhg4 Bb2 Rgf4 Ba1 Qd2 Qcc1 Rcc6 Nce3 Bc5 Qa3 Rc7 Qac1 Rc8+
N1r4q/6PN/B2nN1b1/bB2kRnr/1r6/2RR3n/1Q2KP1P/rn2R1N1 b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 f5 exf5 g6 a4 Bb7 axb5 Bc8 fxg6 h6 g4 Be6 g7 Bf5 g5 Bc8 b3 Ba6 g6 Nd7 Bb2 Nb8 Bf6 Bc8 Bg5 hxg5 d4 Kd7 d6 Ke6 b6 a5 d5+ Ke5 d7 c5 d6 a4 b4 a3 b5 g4 b7 a2 b6 g3 Qc1 c4 Qd2 g2 Qb4 c3 Qg4 c2 Be2 c1N Nc3 Nh6 g8B Nf5 g7 Nc6 b8R Ncd4 b7 Ncb3 Rc1 a1R Bgc4 Nd2 Nd5 Ne6 Nc7 Ng5 Bb5 Nb1 Rc3 Rh5 Qb4 R1a4 Qa3 Rb4 Qb2 Qe8 d8N e6 d7 Nd6 Nh3 g1N Bec4 Ra1 Na8 Be7 Ba6 Qh8 Bcb5 Bf8 Nf4 Be7 Ne2 N1h3 Ng1 Bf8 Ke2 Be7 Nc7 Bf6 Ra8 Be7 b8R Bb7 Ra7 Be4 Na8 Bg6 Rbc8 Bf8 R8c4 Be7 Rd4 Bf6 Rdd3 Be7 Nb7 Bd8 Nc5 Ba5 d8N Kf4 Rd2 e5 Nd7 e4 Nf6 e3 Rf7 Kf5 Nh7+ Ke5 Ke1 e2 Rdd3 Rc4 Rf8 Rc8 Ne6 Ra4 Rff3 Rb4 Rf4 Na3 Kd2 e1R Rf8 Rc1 Ke2 Ra1 Rf5+ Ke4 Nf3 Nb1 Rf1 Be8 Ng1 Bg6 Rf6 Ke5 Re1 Rf4 Rf8 Rb4 Rf5+
1n2R3/1kN3bq/3rP1nR/1KbQNqB1/RNP4n/3B4/2b1P1NR/3q3n b - - 0 1 legal: proof: d4 b5 f4 c5 h4 cxd4 a4 a5 axb5 e5 fxe5 g5 g4 f5 gxf5 g4 Ra4 Ra6 Ra3 Rg6 Ra1 Rg5 hxg5 Ba3 Rh4 Be7 Rh1 Bf8 Kd2 d5 Kd3 Kd7 b4 Kc7 g6 h5 b6+ Kc6 f6 g3 b5+ Kb7 g7 g2 e6 a4 f7 a3 Nh3 g1N Bg2 a2 Nf4 h4 Na3 h3 Be4 h2 Ng2 Bd7 Bg5 Qc7 Nc4 Bc5 f8R Nf3 Rf6 Ne7 g8R Ng6 Re8 Nfh4 Ne5 Bc6 c4 Qh7 Kc2 d3+ Kc3 d2 Bd3 d4+ Kb3 Nd7 Ka4 Be4 Rf2 Nb8 Rf6 Nf4 Rh6 Nfg6 Ka5 Rg8 Ka4 Rg7 Ka5 Rd7 Ka4 Ka8 b7+ Ka7 Ka5 Rd6 Ka4 Bf5 b6+ Ka6 Qf1 Be4 Qf3 Bf5 Qd5 d1Q+ Bc2 Qb1 Bd3 Nc6 b8N+ Kb7 Na6 Qf1 Rc1 a1B Nb4 Be4 Rc2 Qf5 Kb5 Bc3 Ra2 Bb2 Bc2 d3 Ra4 d2 Bd3 d1Q Re7+ Kb8 b7 Ba1 Re8+ Kc7 b8N Kb7 Rf1 h1N N8a6 Bc3 Nc7 B3d4 Bb1 Bc2 Rf3 Bc3 Rh3 Bb2 Rh2 Bc3 Nf3 Bf6 Ne5 Bg7 Qd2 Nb8 Qd4 Bb3 Bd3 Bc2 Qd5+
N2BBKNN/PrQ3p1/2n2P1N/2kRb3/2qqr1B1/3R2P1/2q1nb2/1B3b2 b - - 0 1 legal: proof: c4 d5 cxd5 Kd7 b4 e5 d4 a5 Qc2 f5 Qxf5+ Kd6 Qf3 axb4 dxe5+ Kc5 Qf5 h5 Qxh5 Kb6 Qf7 Kb5 Kd2 c5 Kd3 c4+ Ke4 c3 a4+ Kc4 f4 b5 h4 b3 f5 b2 d6+ Kc5 a5 b4 e6 c2 Ke5 b3 e4 Ra6 g3 Rh5 d7 Kc6 e7 Qb6 Ke6 Qe3 e8B Ra7 e5 Ra8 a6 Bd6 a7 Bc5 Nd2 b1Q Ra3 b2 Ngf3 Qb3+ Nc4 Rh7 h5 Qb4 h6 Ba6 Nb6 Qe4 Bh3 Ne7 d8N+ Kc7 Nh2 Qg2 Bg4 Bg1 Bg5 c1B Rd3 Qgc2 Nc6 Bf2 Rhd1 Qa1 Bf6 Rh8 h7 b1Q Bg5 Rg8 h8N Bb2 Rd5 Qe4 R1d3 Qc4 Bd7 Ng6 Ne7 Rf8 Ng8 Nf4+ Ke7 Ne2 e6 Be5 Ba4 Qac3 Bc2 Kc6 Bf6 Qbb3 Bb1 Qbc2 Bh4 Rd8 Bf6 Rd7+ Kf8 Q4d4 e7 Qcc4 e8B Bb5 Bd8 Ba6 Rd6+ Kc5 f6 Rb7 Qc7+ Nc6 Rd7 Rab8 Na8 Rb4 Bf5 R8b7 Ng4 Bb5 N4h6 Rb3 Rf3 Re3 Bg4 Re4 Rd5+ Kb4 Be7+ Qcc5 Qd8 Nc3 Bgd7 Bf1 Qc7 Ne2 Bg4 Kc4 Rd3 Qb5 Rd6 Kc5 Bd8 Qbc4 Rd5+
2B1k1q1/2NrB3/4B3/1R1b1n1P/q5Bb/5RP1/nrpQKPrN/2NN2r1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 e4 axb4 Qxh5 g6 Qh7 f5 exf5 Qd7 fxg6 Qd8 h4 c5 d4 b5 a4 e5 a5 c4 g7 c3 a6 c2 g3 e4 d6 e3 a7 b3 h5 b2 d7+ Kf7 d5 e2 d6 b4 Nc3 b1Q Bh3 b3 Qh6 b2 Bg4 Qe8 Nf3 Nf6 Qd2 Bb7 Nh2 Rh7 Ra3 Be7 Nd1 Qg8 d8N+ Ke8 Nc6 Qba2 Na5 b1R Rf3 Na6 Nb3 Qa4 Ba3 Ne4 Nc1 Rb8 a8B Bd5 Bb7 Nb4 Bbc8 Bh4 Rf1 Na2 d7+ Kd8 Bc5 Nd6 Rg1 Ke7 d8N Ke8 Ne6 Nf5 Be7 R8b2 Rf1 Qf8 g8B Rf7 Bd6 Rd7 Be7 Qg7 Nc5 Ra1 Be6 Qg8 Na6 Rab1 Qc3 Ra1 Kd2 e1R Rg1 Rf1 Ke2 Rab1 Rh1 Rg1 Qd2 Qf7 Bd8 Qg8 Nc7+ Kf8 Bg5 Rg2 Be7+ Kg7 Nc3 Qb4 Nb3 Qa4 Nc5 Rb4 Nd3 Ra1 Rb1 Rb8 Rb4 Rag1 Nc1 Rb6 Bd8 Kf8 Nd1 Rb7 Re4 Rb2 Rb4 Bb3 Rb5 Bd5 Na8 Ke8 Bf6 Qa5 Be7 Qa4 Nc7+
7R/K3P2p/2b1Qnbq/PNk1r2P/2qBB1R1/2BR2rB/1b2b1n1/1N3R2 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 f4 g5 fxg5 Nh6 cxb5 Ng8 b4 axb4 Kf2 Ke7 Ke3 c5 g4 f5 a4 d5 h4 c4 Kd4 b3 Kc5 b2 e4 f4 g6 d4 a5 f3 b6 c3 h5 d3 g5 d2 e6 f2 g7 c2 g6 Qd3 b7 Qe2 Kb6 Kd6 e5+ Kd5 e7 Qg4 e8B Qe2 e6 Bd7 Nf3 Na6 b8B Nb4 Ra3 Nd3 Qe1 d1Q Nd4 Bc6 Be5 Nf4 Nb5 Ng2 Be3 c1Q Bc3 Nf6 g8R Qc4 g7 Qdg4 Bd3 f1B Bg1 Qh6 Bd7 Re8 Ka7 Be2 Rb3 Ba3 e7 Rc8 Rf8 Rg8 Bg6 Qgf4 Bh3 Rd8 Bgf5 Rd6 Bc2 Re6 Ra8 Re3 Be4+ Kc5 Rd8 Qe5 Rd3 Qed5 Rb4 Qdd4 Ra4 Rg3 Rb4 Rd8 g8R Rd5 Rh8 Re5 Bh2 Reg5 Rf1 Rf5 Bg1 Re5 Nd2 b1B Ra4 Bc2 Nb1 Bed1 Qe2 Bb2 Qg4 Bf3 Qe6 Be2 Bd5 Qb3 Re3 Qd2 Rg4 Bg6 Be4 Qd4 Rd3 Qc4 Bgxd4+
2nBB2R/1B2n3/R2kP1P1/1n3Qr1/2q1Rnbn/2P1p1r1/R3rN2/2NK1B2 b - - 0 1 legal: proof: d4 b5 h4 d5 f4 c5 dxc5 g5 hxg5 e5 a4 e4 axb5 Bd6 e3 Be5 fxe5 d4 Qg4 dxe3 Qh5 Be6 Qd1 Bc8 g4 Ke7 b4 h5 g6 a5 b6 f5 b5 e2 c3 h4 g7 a4 c6 h3 b7 f4 g5 h2 b6 a3 c7 f3 g6 a2 Nd2 Qd5 Bb2 Bg4 c8B Nc6 b8R Na7 e6 Rh3 b7 Kd6 Qa4 Ne7 g8B Rg3 Qa5 Qc4 Nb3 f2+ Kd2 e1N Bc1 Ng2 Bf7 Nh4 Nh3 Nb5 Rg1 h1N Rg2 Na7 Qf5 e3+ Kc2 Nb5 Be8 Ra5 Rh2 Na7 Ba3+ Rc5 Ra8 Nb5 Rb1 a1R b8R Ra2+ Kc1 Rd2 Bb7 Re2 Kd1 Nc8 Ra1 Nd4 Ra4 Nb5 Rb4 Re5 Nc1 Rc5 Bfg2 f1N Nf2 Re5 Qb1 Rg5 Qf5 Rh3 Ra8 Nhg3 Ra2 Nh5 Ra7 Nfg3 Bf1 Nf4 Raa4 Ngh5 Ra5 Nf6 Ra6+ Kc7 Rba4 Rg3 Be7 N6d5 Bf6 Nde7 Rh1 Qc6 Re4 Qc4 Rh2 Nf3 Rh8 Nh4 R6a3 Kd6 Ra4 Nc6 Bd8 N6e7 Ra6+
B1N3R1/b1p3RK/P1N4b/qP1P4/nbq1QrRB/rb3RN1/8/1N1b3k b - - 0 1 legal: proof: b4 a5 h4 g5 c4 gxh4 a4 f5 e4 d5 exf5 b5 cxd5 Nc6 axb5 a4 Qb3 Kd7 Qd1 Na5 bxa5 Ke8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 g4 h5 d6 e5 f6 a3 f3 h3 d4+ Kh4 d7 Kg3 Kf5 e4 Kg6 h4 f7 a2 g5 h2 f4 e3 f5 h3 f6 e2 Bg2 e1B Qc2 Bh6 f8N Bb4 f7 Nf6 Qe4 Nd5 Ne2+ Kf2 Ba3 Nb6 Rg1 h1B Ng3 h2 a6 Na4 Bc1 Qe7 d8N Bg4 Bf3 Qc5 Nd7 Qc4 Nc6 Raf8 Nb6 Bg2 Bd2 h1Q Nc8 Bf1 Bg2 Bd1 Bc3 Rhg8+ Kh7 Bd3 g6 B3c2 g7 Bb3 Bb2 Qh4 Bc3 Qf4 Bb2 Qd2 Bc1 Qdc3 Bg5 Qe1 Bh4 Qd2 Na3 Qdc3 Rc1 a1B Nb1 Bb2 Bf3 B2a3 Bh1 Bc5 Bg2 Qa5 Rc3 Ba7 Rc1 Qd5 Rc4 Bb4 Bh1 Re8 Bg2 Rgf8 g8R Re6 Bf3 Rf6 Rg7 Rf4 Rc3 Rg8 f8R Qc4 Rg4 Rg5 Rg8 Rgf5 Bh1 Rf3 Re3 R5f4 R4g7 Nb2 Qe5 Bb6 Nh5+ Rg3 Nb8 Na4 Ba8 Ba2 d5 Ba7 Rg2+ Kf1 Nc6 Rgf3 R2g4 Rh3 Re4 Ra3 Ng3+ Kg2 Re3 Bab3 Rf3 Kh2 Qe4 Kg1 Nf5+ Kh1 Ng3+
2Qb4/b2rr3/3b2B1/2P4r/K2NRBk1/p2PB1NR/P1nR1B1R/2q2qr1 b - - 0 1 legal: proof: g4 d5 e4 dxe4 h4 f5 gxf5 g5 b4 c5 bxc5 g4 f4 Be6 c4 Nd7 f6 Bd5 cxd5 Ne5 f5 Nf3+ Kf2 Ng5 hxg5 Qd6 Ke1 Qd8 g6 Kd7 f7 h5 g7 a5 f6 e5 d3 b5 Kd2 g3 Kc2 g2 Kb3 e3 d6 Ke6 d7 Kf5 Bb2 e4 Bc1 b4 Bb2 h4 Nc3 e2 Qb1 e1B Nf3 g1R Nd4+ Kg4 Ndb5 a4+ Kc2 e3 Bg2 e2 Be4 a3 Kb3 h3 Nd4 h2 Bc1 Bd6 f8B Bh4 f7 e1B Bf4 Rh7 Nce2 Ra7 Ng3 Qf6 d8B Rd7 Ka4 b3 Bg6 Ne7 g8R b2 Rh8 Nc6 B8h6 Nb4 f8R Nc2 Re8 Ba5 Re4 Bb6 Qe1 Rhg7 Rd1 b1Q Rd2 Ba7 Bhg5 Qb2 Qb1 Qa1 Qb7 Qc1 Qc8 Qf7 Ba5 Qf8 Bh6 Bd8 Bb4 Re7 Be3+ Kh3 Bhf4+ Kg4 Rh3 Qf6 Nb5 Qfa1 Bc3 Qab1 Bcd4 Qf1 Bf2 Qbc1 Bde3 Rg2 Rg1 h1R Nd4 Rgh2 Rg2 Rg1 Rh8 Rh5 Rh2 Rf5 R8h3 Rfe5 Be1 Rh5 B1f2
1Rb5/5P2/n1RN1qpq/n1P4B/RBbq1nQ1/7P/3bRn1k/1KNN1N2 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Ng8 h6 Ba6 Na3 Bb7 Nb1 Bc8 Rh5 a5 Qd2 Ra6 Nc3 Rf6 Qd3 Rf7 Qd2 Rg7 hxg7 h6 Rh3 h5 Nb1 h4 Rh1 h3 Qd3 h2 Qd1 Rh3 gxh3 Qb6 Kd2 Qc7 Ke1 Qd8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 f4+ Ke4 b4 e5 b6 d5 f6 a4 f5 a3 b7 a2 b5 Qe7 b6 Qb4 f7 Na6 b8N Ne7 g8N Bh6 f8R Nc6 f6 Na5 b7 Bd2 c5 Kf4 f7 Kg3 Nc6 e4 b8R e3 Nf3 e2 Nce5 e1Q Ba3 Qe3 Re8 Qh6 Nc3 Qc4 Rab1 a1Q Be2 Kg2 Re1 h1N R1b6 Nf2 Nf6 Nd3 Bb4 Nf4 Nd3 Kg3 Nc1 Kg2 Nh4+ Kh2 Bh5 Qf1 Qg4 d3+ Kd1 d4 Re2+ Qf2 Ng2 Qh4 Ne8 Qf6 Rc6 Be3 Rg1 d2 Kc2 d1N Nb3 Nf2 Nd6 Qd1+ Kb2 d3 Ka2 Bc1 Ne3 d2 Ka1 Qe1 Ka2 d1B Rg3 Qd2+ Kb1 Qdd4 Nf1+ Kh1 Rd3 Bd2 Nc1 Bb3 Nd1 Bbe6 Ra3 Bc4 Qd7 Kg2 Ra4 Kg1 Qg4+ Kh1 Nfe3 Kh2 Nf1+
5Rb1/K1Q2P1b/1PR2q1r/5p2/nNP1knb1/2NN3R/pr5B/1n3NBR b - - 0 1 legal: proof: d4 b5 e4 f5 exf5 Kf7 a4 c5 dxc5 g6 axb5 Bg7 f6 Ke6 f7 Bf8 h4 Bh6 f4 Bf8 g4 Qb6 g5 Bg7 f5+ Ke5 f6 Bb7 Bh3 Qd8 Bg4 Bh6 Bf5 gxf5 g6 Bg5 hxg5 Ke6 Rh5 Ba6 Rh1 Bc8 Kd2 Kd5 Kc3+ Ke5 Kb4 d5 f8N h5 c4 h4 c6 a5+ Kc5 d4 b4 d3 g7 h3 g6 a4 c7 h2 Kb6 d2 Ne2 a3 Nbc3 a2 Ng3 Na6 Nf1 Nc5 Ne6 Rh6 Nf4 Rb8+ Ka7 Na4 b6 Be6 c8R Kd4 Qe2 d1B b5 Qd6 Qc2 Bg4 b7 Bd5 Rc6 e5 Nd3 e4 Bb2 Ne7 g8N e3 g7 Ng6 Ne7 e2 g8R e1N Rf8 Bg8 Ned5 Bh7 N5b4 Nf3 Qg2 Nf4 Qg3 Nd2 b6 Nb1 Bc1 Re8 b8B Re2 Bd2 Qe5 Be1 Rb2 Bf2+ Qe3 Bg1 Qf2 Ncd5 Ke4 Be5 Qd4 Bd6 Bg8 f7 Qf6 Be5 Bh5 Bb8 Bg6 Bd6 B6h7 Bb8 Ng6 Qc7 Nf4 Nc3+ Kf3 Nd2+ Kg4 Bf2 Nd5 Rd1 h1B Qe7 Na3 Be5 Kg5 Qc7 Bf3 Rg1+ Bg4 Rg3 Rh2 Rag1 Nb1 Rh1 Rh6 Nf1 Rh2 Bd6 Rh6 Ne5 Kf4 Bg1 Be2 Rgh3 Bg4 Nd1 Ke4 Ned3 Ne3 Be5 Ng2 Beh2 Nf4 Nc3+
q2bq3/RPRQ1RPk/2Bp2n1/1P3n2/3N2BB/R1p3r1/qbN2K2/1Br5 b - - 0 1 legal: proof: h4 b5 e4 g5 hxg5 f5 exf5 b4 d3 b3 axb3 Bb7 b4 Ba6 b5 Bc8 Rh6 c5 Ra3 c4 Raa6 c3 Rh1 Bb7 Ra1 Bd5 Rh6 Nc6 Rh1 Nb4 Ke2 Bc4 dxc4 Nxc2 g4 Kf7 b4 Kg7 f4 e5 c5 a5 g6 h5 f6+ Kh6 b6 h4 b7 h3 c6 e4 g5+ Kh5 c7 e3 c8B h2 f5 a4 g7 a3 b5 a2 f7 Nf6 g8B Nh7 g6 Kh6 f6 Ng5 g7 Be7 f8R Nf3 f7 Ne5 Nf3 Ng6 Bh7 Nd4+ Ke1 Bf6 Bg2 Nf5 Na3 d6 Nd4 Qe8 Bc6 Bd8 Qg4 Qe6 Rg1 h1Q Nac2 Qhd5 Rg8 Qe8 f8R Ra5 Rg2 Qde6 Rd2 e2 Rf7 Ra4 Kf2 e1Q+ Kf3 Q1e4+ Kf2 Rb4 Rc7 Rb1 Rf8 Q4d5 B8d7 Qg8 Rf7 Qb3 Be6 Qa4 Bc8 Qa8 Rd1+ Bg5 Bd2 Rc1 Be1 Bd8 Qh3+ Nfh4 Qd7 Nf5 Rb1 a1B Rb3 Bb2 Ra3 Qe6 Rd2 Qa2 Re2 Rd1 Ra7 Rd3 Rd2 Qe8 Rd1 Rg3 Ra1 Qae6 R1a3 Qa2 Kf1 Rg4 Bh4 Rg3 Kf2 Rf8 Re7 Rf6 Rf7 Re6 Qe7 Re1 Be6 Rc1 Qd7 Nfe7 Bh3 Nf5 Bg4 Ne3 Na1 Nf4 Bhe4 Nf5 Bb1 Ng6 Nac2 Kh7 Bgf3 Qe7 Be2 Qe8 Bg4
nB1K2Rr/3BP3/3r2B1/2q4p/pq1rP1bn/2R1PBn1/4R3/2QN1kNR b - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 e5 fxe5 b5 e4 b4 c4 dxc4 a3 Bd7 axb4 Bc5 b5 Be3 dxe3 Bc8 Ke2 Ke7 Kf3 Ke6 Kf4 f5 g4 c5 b4 a5 b6 h5 b5 a4 g6 c3 b7 c2 g5 c4 b6 c3 g7 Qf8 g6 Qe8 Kg5 f4 Ra3 f3 Bg2 f2 Bf3 f1N Bb2 Nh6 Qc1 Na6 b8R Ng3 b7 Nhf5 g8B+ Qf7 g7 Nh4 Ba1 Nc7 Bh7 Ra6 g8B Na8 Bg6 Rd6 Ra2 Ke7 e6 Qf8 B8h7 Bd7 Rc8 Rd4 b8R Kd6 Rc5 Bc8 Be8 Bd7 Bhg6 Bc8 Qd1 c1R Bd7 c2 Nc3 Rb1 Qf1 c1Q Nd1 Rb6 Re2 Qd2 Qe1 Qb4 Qc3 Rc6 Qc1 Rb6 Rcc2 Ra6 Bc3 Kc5 e7 Kc4 Be1+ Kd3 Rc5 Nf1 Bg3 Rad6 Bh2 Qg7 Kf4 Qf7+ Ke5 Qfc4 Bf4 Ng3 Rc6 R6d5+ Ke6 Qcc5 Bc7 Rd6+ Kf7 Ba6 Rg8 Bc4+ Ke8 Be6 Bb8 Bh3 Qa1 Bg4 Kd8 Be6 Rc2 Bg4 Rc3+ Kd2 Qc1+ Ke1 Rc2 Kf1 Re2 Qa7 Rcc2 Qac5 Rc3
1r1b1N1b/RBQ1qR2/2B1Rn2/pK1P1n1P/3b1P1q/1p4b1/1k6/2R1BBN1 b - - 0 1 illegal: No proof kernel
2n1QB2/3bP1NR/1p2b1Bn/k3q1BR/2R1Pr1b/2q1PR2/p5N1/1B1b3K b - - 0 1 legal: proof: b4 h5 a4 b5 axb5 h4 b6 h3 b5 Nh6 b7 Ng4 b6 Nf6 gxh3 Nc6 h4 Nb8 h5 Ng8 d4 e5 dxe5 cxb6 Na3 a5 Nb1 a4 e3 Ra5 e4 Rb5 Ra3 Rb3 Ra1 Re3+ fxe3 Qf6 Nf3 Qe7 Ng1 Qd8 Kf2 g5 Kg2 d5 h4 Kd7 c4 Kc6 e6 f5 h6 g4 c5 f4 h7 a3 h5 g3 h6 a2 Nc3 d4 Qa4+ Kc7 c6 d3 Nf3 d2 Ng5 d1B Ne2 Nf6 Rh3 f3+ Kh1 f2 Nf4 Bc5 Ng2 Bd7 Ba3 Bd6 Bd3 f1B Rc1 Qc8 Bb1 Ng8 Rc4 Be7 Qa8 Bf6 Bf8 Bfe2 e7 Beg4 Rh5 Bge6 Qa4 Kd6 c7 Nc6 b8R Na7 Ra8 Qb8 c8B Qc7 Rb8 Qc5 Ra8 Qe5 Qb5 Beg4 Ne6 Bh4 Ng7 Bge6 Bb7 Nc8 Bc6 Kc7 Qa4 Qc3 Raa5 Kb8 Raf5 Qe5 Qb5 Ka7 Rf3 Qc3 Bd5 Qe5 Qc6 Ka6 Qa8+ Kb5 Qb8 Ka5 Bc6 Na7 Qe8 Nc8 Ba4 Nf6 Bc6 Ng4 Bd5 Rg8 h8B Qc3 h7 Nh6 Nf5 Rg5 Bf6 Rg4 h8R Rf4 Rh7 Qe5 Ng7 Qc3 Ne1 Qe5 Bg5 g2+ Kh2 Bg4 Bf7 Bge6 Bg6 Qc3 Bf5 g1Q+ Kh3 Qa1 Ng2 Qe1 Kh2 Qe5 Bg6 Q1c3 Kh1
2B1R1r1/p2K1n1N/R3PbBQ/2NkN3/4nP1n/Bb2n1PB/4p3/2N3rr b - - 0 1 legal: proof: h4 b5 d4 g5 hxg5 c5 a4 cxd4 axb5 Nf6 e3 Ng8 f3 e5 Bd2 f5 Bc1 f4 exf4 Ba6 Nc3 Bb7 Nb1 Bc8 Be3 e4 Bc1 e3 Bd3 Qe7 Bf1 Qe4 fxe4 Ke7 Be2 Kd8 Bf1 Ke8 Ke2 Kf7 Kd3 Ke6 Kc4 h5 b4 e2 b6 d5+ Kb5 h4 c4 h3 e5 d3 g3 d4 c5 h2 c6 d2 c7 d3 g6 Nf6 b7 Nh7 g7 Nc6 g8B+ Kf5 b8N Ke4 e6 Be7 Bf7 Bf8 Bh3 Ng5 Nd7 Rh6 Bg6+ Kd5 Ra6 Bd6 Nf3 Be7 Nf8 Rh7 Ba3 Bf6 Ne5 Bb7 c8B Nf3 Qe1 d1R Nd2 Rc1 Nb3 d2 Qf2 Rh8 Nh7 Rg1 Nc1 d1N Qf1 Nh4 Qf3+ Kd6 Qh5 Ne3 Qh6 Rb8 Bd7 Rbg8 Bc8 Kc7 Kc5 Nd8 b5 Nf7 b6+ Kb8 Kb5 Bd5 b7 Kc7 b8N Bb3 Nf8 Rh7 Nbd7 Rhh8 Nc5 Rh7 Ra5 Kd6 Ra4 Kd5 Ra6 Rhh8 Nh7 Re1 Rg1 h1N Rf1 Nf2 Rh1 Rg1 Rh2 Kd4 Kc6 Ne4 Kd7 Rf8 Bb7 Rb8 Bc8 Kd5 Rf2 Rg8 Rf1 Rb4 Rd1+ Rd4 Rd3 Rh1 Rc3 Rdd1 Rc4 Rdg1 Rb4 Bc2 Rb8 Bb3 Bb7+ Kd4 Rc8 Nef5 Rd8 Ne3 Bc8 Kd5 Re8
qNB5/1P4Pp/qq4nK/1n1p2BB/2R2PN1/1R2r2q/3kQqN1/Nr3B2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 d4 c5 a4 cxd4 axb5 e4 Kd2 f5 Nf3 Bg7 Ra4 Be5 fxe5 f4 Ne1 f3 Ra3 f2 Ra4 Bb7 Nf3 Bd5 Ng1 Bf7 Ra3 Bh5 Ra1 Bf3 exf3 Kf7 Nh3 Ke7 Ng1 Ke8 c4 Ke7 b4 Ke6 g4 d5 g6 a5 c5 a4 b6 d3 Ke3 a3 Kf4 e3 c6 e2 g5 e1Q c7 a2 c8B+ Nd7 g7 d2 b5 Ne7 g8N Ra5 g6 Qc7 Kg5 Ra3 g7 Nc6 b7 Qa5 b8N Nd4 b6 Qc3 b7 Ra4 Nf6 Nb5 Ng4 Re8 Kh6 Kf5 e6 Kf4 e7 Rb4 Rh3 Ne5 Na3 Rb1 Nc2 Ng6 Qe2 Qc5 Rh4 Qb6 Nh3+ Kg3 Qe3 d1Q Nf4 Qde2 Ng2 Qea5 Qa3 Qa8 Bg5 Qd3 f4 Kf3 Rh3+ Ke4 Rf3 Qd2 Rb3 Qaa6 Bc4 f1Q Be2 Qf3 Bc4 Qdf2 Bf1 Rc1 Rab1 a1Q R1b2 Qa2 Na1 Rb1 Rc2 Qa8 Rc1 Qae2 Rc6 Qc3 Rc4+ Kd3 Nc6 Kd2 Nb8 Rd8 e8B Qce3 Bf7 Re8 Qe7 Q2d3 Qe4 Qba6 Qf3 Qeb6 Bd7 Re3 Bde6 Nf8 Bh5 Ng6 Bc8 Qf5 Nh2 Qh3 Ng4 Re6 Qg3 Re2 Qf3 Re3 Qe2+
2R1R2Q/1p1kqPbp/RRr5/2n1r3/BK1N2Nn/4r1BP/p3nBP1/4B3 b - - 0 1 legal: proof: b4 d5 e4 c5 exd5 Qa5 bxc5 Qxa2 f4 g6 f5 Be6 fxg6 f6 Qg4 Kd8 Qd1 Bf7 gxf7 Kd7 d4 e5 Kd2 a5 Kc3 a4 d6 f5 c6+ Kc8 h3 f4 d5 a3 c7 e4 Nf3 e3 Nbd2 e2 Kb4 e1N c4 Kd7 c8R Qb1+ Nb3 Nh6 c5 Ra6 Qd4 Qd3 Be3 Qg6 Bb5+ Rc6 Ba4 Qh5 Re8 Qg5 Nh2 f3 Bf2 Qe5 Ng4 Bg7 Qb2 Qe2 Nd4 Qe3 Bg3 f2 Qc3 Nf3 Rhb1 f1R Rb3 Qg5 Be1 Qd8 Qb2 Kc8 d7+ Kc7 Qc3 Qf6 d8B+ Kd7 d6 Nh4 Bc7 Rf3 Ne6 Qg5 Kb5 Bf6 Rg8 a2 Rab1 N6f5 Rb4 Be7 Rf8 Rg8 Re8 Ra6 Qh8 Bf6 Nd4 Ng3 Rc4 Be5 Rbb4 Qd8 c6+ Kc8 Rc5 Rg7 Kc4 Nd7 Ra5 Rb6 Ra6 Re3 Bb8 Rg8 c7 Nc5 Rb3 Rc6 Rbb6 Rg5 Kb4 Kd7 c8R Qe7 Ne2 Ke6 d7 Bg7 Nd4+ Kd5 Bf2 Ne2 Bbg3 Rge5 Be1 Kd6 Bgf2 Re6 d8B Kd7 Bc7 R6e4 Bf4 Re5 B4g3
K2R4/4P1N1/p3B1B1/N1PB4/Nn1p3B/Q3q1b1/b1Pp1k1n/1NR1r1nq b - - 0 1 legal: proof: b4 b5 a4 e5 axb5 g5 d4 exd4 f4 c5 bxc5 a6 h4 Ra7 hxg5 Rb7 Ra4 Rb6 Ra5 Re6 Ra1 Re5 fxe5 Be7 Be3 Bd6 Bc1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 h5 g4 f6 b6 d3 g6 d2 g5 d6 b7 h4 g7 h3 g6 Nd7 b8N h2 Nc6 Qb6 Na5 Nh6 g8B+ Nf7 g7 Qb3 e3 Rh5 Qf3 Nb8 Ne2 Nc6 Nec3 Nb4 Na4 d5+ Kd4 f5 e4 f4 Bd3 Bb7 Rd1 h1Q Qe3 Bd6 Qh3+ Ke7 e6 Kf6 e7 Kg5 e8N Ne5 Be6 Rh6 Qe3 Kh4 g8B Rh7 Bb2 Re7 Ng7 Bc8 Rc1 f3 Ra3 Kg3 Bc3 Nf7 e5 Ng5 Bg6 Nh3 B8f7 Ng1 Ba1 Qa2 Rd3 Qa3 Bd7 Kg2 e6 f2 Bg8 Rf7 e7 f1N Bc6 Rf3 Ba8 Bb7 Be6 Bg3 Bc3 Rf4+ Ke5 Bc6 Kd6 Nh2 Kc7 Re4+ Be5 Bb5 Kb7 Bc4 Bf6 Ba2 Bh4 Qb3 Rd4 Qc3 Qd3 Kf2 Ka7 Re2 Bb7 Re1 Ka8 Qc4 Qa3 Qe2 Rf4+ Qef3 Rf8 d4 Rd8 Qe3 Bbd5
1b2R2R/PP6/2q1pB2/1R2Q3/rr1Rp1K1/N1Bp2P1/b1q2bBB/4krN1 b - - 0 1 illegal: No proof kernel
N4Rr1/1Kn1Rp1r/P3Np2/QR1r2Rr/NN3np1/3P4/3Pb1r1/3B2Bk b - - 0 1 legal: proof: f4 d5 g4 a5 b4 d4 bxa5 d3 cxd3 Bf5 g5 Be6 f5 Bc8 f6 exf6 h3 g6 h4 h5 Nh3 Bh6 Ng1 Qd5 gxh6 g5 Bh3 g4 Bf1 Qg5 hxg5 Bd7 Qc2 Be6 Qd1 Bc8 Kf2 Ke7 Ke3 Kd6 Ke4 b5 a4 c5 h7 b4 g6 b3 a6 b2 a5 h4 a7 c4 a6 c3 g7 c2 Na3 b1R Bb2 c1R Nc2 h3 Bd4 h2 Ra5 Ra1 Rb5 Rab1 Nb4 Nd7 Qa4 Rc6 Qa5 Ne7 g8R Rc3 Rgg5 Nf8 e3 Rcc1 Ne2 Nfg6 Nc3 Nd5 Na4 Nc7 Be2 Rc5 Bd1 Rd5 Re1 h1R Bb6 Rg8 h8R Rh5 Re2 Rg7 Rf8 Rgh7 Bd4 Rb8 a8N Bb7 Ba7 Nf4 Bb6 Rc5+ Kd4 Re8 e4 Rd5+ Kc4 Ke6 e5 Red8 Bg1 Rc8 Rg7 Kf5 e6 Rb8 e7 Re8 Rh8 Rg8 e8N Bc6 Re7 Bb7 Bf3 Re1 Bd1 Re2 Rg6 Rg2 Rg7 Rc5+ Kd4 Bf3 Rg6 Rd5+ Kc4 Nh3 Rg5+ Kf4 Ng7 Kg3 Ne6 Be2 Nec5 Rf5 Ne6 Nf4 Kd4 Rd5+ Kc4 Rdd8 Kc5 Rd5+ Kb6 Kh3 Kb7 Kg3 Bb6 Kh2 Bf2 Kh1 Bg1 Rg6 Rb8 Rg8 Rf8
1NBR2R1/P1pprN1b/b2P1k2/PR2R3/n2b1pK1/1B1r2p1/Q3B3/B3q3 b - - 0 1 legal: proof: c4 a5 g4 f5 b4 b5 bxa5 bxc4 f4 e5 fxe5 g5 Ba3 f4 Bc1 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Bb2 Rb8 Bc1 Qg5 hxg5 Ra8 Kf2 Kf7 d4 h5 a4 g3+ Kf3 h4 e4 c3 f6 h3 e6+ Kg6 a6 c2 e5 h2 a5 Nh6 e7 Rb8 e8R Bb7+ d5 Rc8 a7 Ba8 f7 Bc6 e6 Bd6 f8R Ng4 e7 Bb4 Rd8 Nf2 e8B+ Kg7 g6 Bb7 Nc3 Bd6 Nb5 Ba8 Qe2 Bb4 Nd4 Nh3 Rb1 Bd6 Rb5 Rh7 Nc6 Bb7 Nb8 Be5 Bb2 c1Q Rg8+ Kf6 g7 Qe3+ Kg4 Bd4 d6 Ng5 Nh3 Ne4 Ng5 Nc3 Ba1 Ba6 Bh5 Na4 Qa2 Qe1 Rg1 h1B Nf7 Be4 Be2 Qf2 Re1 Qg1 Bf3 Qf1 Re2 Qe1 Re3 Bc2 Bb7 Bg6 Ree5 Bd3 Rdf8 Re8 Bc8 Re7 Rd8 Bg6 Rg5 Re3 Rge5 Bd3 Bg6 Bb1 Bd3 Rf3 Be2 Rd3 Rh8 Bc2 g8B Bb1 Ng5 Re7 Bb3 Re3 Nf7 Bh7 Rhe8 Rd3 Rg8
5k1n/RN1bNnp1/Np1Pb3/r4bbR/P1pK2R1/QP4pR/B7/2N4B b - - 0 1 illegal: No proof kernel
6N1/K1b4n/nP3p2/1k3NB1/nQppBPp1/q4R2/1PnpNR1R/R3N3 b - - 0 1 legal: proof: a4 a5 g4 b5 axb5 Nh6 c4 Nc6 g5 Nd4 g6 Nc6 c5 Nb8 c6 Ng8 Nh3 Ra7 Ng1 Rb7 cxb7 Nc6 Ra3 Nb8 Ra4 Nf6 Ra1 Ng8 h4 e5 d3 h5 Ra2 d6 Ra1 f6 Na3 Bf5 Qb3 Kd7 Qc2 Be6 d4 exd4 Qd3 Bf7 gxf7 g5 Qd1 g4 Nb1 Rh7 Qd3 Rg7 Qd1 Rg5 hxg5 Qe8 Rh4 Qe7 Rh1 Qd8 Kd2 c5 Kd3 h4 Kc4 a4 e4 h3 e5 a3 e6+ Kc7 e7 Kb6 e8N h2 g6 d3 g7 a2 Nc3 Qc7 Qb3 Be7 f8R Nh6 g8N Na6 b8R+ Ka5 Bg5 d2 f4 Qa7 Bg2 Nf7 Nce2 Bd8 Be4 Bc7 Ng7 Qa8 Rf1 a1N Nf5 Nc2 Nf3 Qa7 Kd5 c4 Kc6 d5 Rf2 d4 Ne1 Qc5+ Kb7 Qa3 Rhf1 h1N b6 Ng3 Qc3+ Kb5 Ra8 Qd6 Ka7 Qa3 Bh1 Ne4 Qb4+ Kc6 Rf3 Nec5 R1f2 Na4 Rfd8 Nh8 Rd7 Ng6 Rh7 Nf8 Rhh2 Nh7 Re8 Qa1 Ree3 Qa2 Ra3 Qb3 Ra1 Qa3 Bg2 Qd3 Rfh3+ Qf3 Qa3 Kb5 Qf8 Qb3 Be4 Qe3 Rhf3 Qa3 Qb4+
2N1k2r/2P5/1R1BrR1R/NbrQ1n1P/N4P1n/1B2r1r1/1nb4N/2Rqb2K b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 a5 b4 d5 f4 g5 Kf2 e5 Kg2 e4 c4 g4 h6 d3 b6 a4 b7 g3 h5 a3 b5 d4 c5 e3 b6 e2 h7 e1R f6 d2 c6 d3 c7 a2 Nf3 Bb4 Nc3 Nh6 Na4 Re6 Ba3 Nf5 Nh2 Bd7 Rc1 Nc6 b8N a1R b7 Ncd4 Nc6 Ra5 b8N Rc5 Na7 Nf3 Nc8 Bb5 Nc6 N3h4+ Kg1 g2 Na5 Qd7 Qf3 d1N Qd5 d2 Bc4 Qd8 Bb3 Nb2 Rb1 d1B f7+ Kf8 Rc1 Bc2 Rb1 Be1 Rc1 Rg8 h8R Rb1 Rh6 Rh8 Qe5 Qd1 Qd5 Kg7 f8R Ra1 Rg8+ Kf7 Rgg6 Ke8 Bb4 Ra3 Rf6 Rcc6 Bd6 Rc4 Nf3 Rc5 Kh2 g1R Rb1 Rg5 Rg1 Kd7 Kh1 Rg3 Nh2 Ke8 Rc1 Rge3 Rgg6 Rg3 Bc4 Rae3 Bb3 Re2 Bf8 R6e3 Rb6 Re6 Rf6 R2e3 Bd6
bqR2b1N/Nk6/1P1q1n1Q/2B4R/3PBrb1/B3rB1R/n1RbP2b/1n5K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 h5 Kg2 f5 b4 a5 d6 c5 d3 a4 g6 h4 g7 h3+ Kh2 c4 b6 Kc6 b5+ Kb7 d7 f3 g5 f2 g6 a3 Nc3 a2 Nf3 f4 Ba3 Rh4 Qc1 Nf6 g8R Na6 g7 Nb4 Ne5 f3 Nf7 Rf4 Bg2 f1Q Rh8 Qd1 g8B Ra4 Rb1 a1B Rb2 Na2 Bh7 Ra7 Bc5 Ra3 Rc2 Qe8 d8B Bg4 Bde7 Qb8 Qe3 Bb2 Qe6 Bc1 Bf5 Bd2 Rh5 Rb3 Nh8 Ra3 Ne4 f2 Bf3 f1N+ Kg1 c3 d4 h2+ Kg2 Qb1 Qd6 Qb4 Rh3 Ng8 Qh6 Nf6 Bg6 Be3 Bf5 Nd2 Bh7 Nb1 Bg6 Kc8 b7+ Kc7 Nd6 Bd2 Nc8 Rb3 Ba7 Qd6 Bc5 Ra3 Na7 Rb3 Rcc1 c2 Bge4 Re3 Ba3 Qe5 Bec5 Qd6 Rhd1 h1B+ Kg1 Qa8 b8R Bg2 Re8 Qb8 Re5 Bh1 Rd5 Kb7 b6 Ba5 Rd3 Bd2 Rc3 Bg2 Re1 c1B Rc2 Bc3 Rf1 Be1 Kh2 Bcd2 Rh1 Bg3+ Kg1 Qdc7 Rd8+ Qc6 Rc8 Qd5 Rc6 Qdd6 R1h2 Bh1 Rh5 Bg2 R2h3 Bh2+ Kf2 Rc3 Bh7 Ng8 Rc8+ Ka6 Bf5 Nf6 Bh7 Bg3+ Kg1 Re3 Ba8 B2f3 Bg8 Bb7 Bd5 Bh2+ Kh1 Bc6 Bf3 Be4 Bc6 Bd5 Bd7 Be4 Bf5 Ba8 Rc6 Kb7 B5e4 Qd5 Rc8 Qc6 Rd5 Qcd6 Rdh5+
1R1k3q/rP2R3/4PqQ1/1nNB1N2/4NNPn/R1rnKb2/n7/b3RqBn b - - 0 1 illegal: No possible last move, all moves rejected
rbKR2R1/1B3N2/5nrn/P1Nn2B1/1kPbb3/1Pq1RrqQ/2BB4/5bR1 b - - 0 1 illegal: No proof kernel
5qnN/R1rN4/2rr3B/Pn2N2P/B5NR/1q1bRn2/P1b5/2kQbbRK b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxa5 Ng8 Kf2 Ke7 Kg2 Kd6 e4 Kc5 h4 Kd4 h6 b5 d6 f5 h7 c5 e5 g5 h5 f3+ Kh2 f4 d7 b4 e6 c4 e7 f2 e8R g4 d3 b3 Na3 Kc3 d4 b2 d5 b1Q d6 g3+ Kg2 f3+ Kh3 g2 Kh2 Na6 Re4 Qb3 Rb1 Ra7 Nh3 g1N Qe2 Nc7 Bh6 Nb5 Re7 Qe8 d8R Bf5 d7 Bc2 Ra8 Rc7 d8N Qf7 Ra1 Kb2 Nb7 c3 Re3 Bb4 Ra7 Qf8 Nc5 Rc6 Bg2 f1B Nd7 f2 Bd5 Rd6 Bf7 Rc6 Be8 Rc7 Rd1 Rc6 Rd4 Kc1 Rh4 Rd6 Nc4 Rc6 Qg4 Bfd3 Nce5 f1B Qe2 Rc7 Nf2 Nf3+ Kg3 Bd1 Nfg4 c2 Rg1 Be1+ Qf2 Nfd4 Kh2 Nf3+ Kh1 Kb2 Qg3 c1R Qh3 R1c6 Qh2+ B1c2 Qe2 Kc1 Nc5 Ne7 Ncd7 Rg8 h8N Rgg6 Bf7 Rgd6 Bd5 Qb1 Bb3 Ng8 Ba4 Qb3 Qd1+
BB1Q2nr/2nb1Nb1/5qP1/B7/1qk2R1r/q1Pbr3/NRPNB2r/2NK4 b - - 0 1 legal: proof: f4 b5 h4 c5 a4 e5 axb5 g5 hxg5 exf4 Rh2 c4 Rh1 c3 dxc3 Qb6 Nf3 Qa5 Ng1 Qd8 b4 Ke7 g4 Ke6 e4 a5 e5 d5 b6 h5 b5 f5 g6 d4 g5 Kd5 e6 d3 b7 f3 e7 h4 e8B h3 g7 f4 b6 h2 g6 a4 Ne2 a3 Bb2 a2 Nc1 Qd6 Bc6+ Kc4 Be2 Ra4 Ba3 Na6 b8N Nc7 b7 Qb4 Rf1 h1R Na6 Bd7 b8B R1h2 Ba8 f2+ Kd2 Qc5 Bb4 f3 Ba5 Qb4 Rg1 f1Q Rg4+ Kb5 Rf4 f2 Rf3 Kc4 Rf7 Nf6 g8N Bg7 Nh6 Ng8 Rf8 Qh3 Rf3 f1B Nf7 Qe6 Ke1 Qf6 Nd2+ Kb5 Rb1 a1Q Ne4 Kc4 Rf4 Qaa3 Bh5 Be2 Rb2 Bf1 Qg4 d2+ Kd1 Bd3 Qg5 Qf5 Qd8 Qf6 Bb6 Ra5 Bf3 Rah5 Be2 R5h4 Ba5 Qbd6 Bh5 Bf1 Nb4 Bd3 Nba2 Qdb4 Nf2+ Be4 Ke2 d1R Bg4 Rd5 Bf3 Rg5 Kd1 Rg3 Bh5 Re3 Bg4 Kb5 Be2+ Bd3 Ne4 Kc4 Nd2+
b7/1N5K/1n1N1P2/r3P2B/1q1P1B1r/1Qb1bn2/1BR1nRRR/n2rqB1k b - - 0 1 illegal: No possible last move, all moves rejected
bb2K1bN/RB2R1Q1/1PR5/2n1n2r/NR5P/1r2r2B/4Pr2/kq2BqnB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 Kf5 Kc4 b4 g5 h4 a5 c3 d5+ e6 d3 b6 d2 b5 g4 h6 g3 h7 a4 b7 g2 b6 d4 Rh2 a3 Qe1 Kb3 c4 d1Q c5 d3 c6 a2 c7 d2 Qf2 Na6 b8R Bd6 Rh1 Nf6 Nf3 g1N Nc3 Bb7 c8B Qf8 e7 Ng4 e8B Ne5 Kf6 Nc5 Bc6 Ra3 Na4 Ba8 Rb7 Bb8 Ng5 Kc2 Rh3 Re3 Bh1 Rb3 Rb1 a1R Qg2 Raa3 Re3 Qe1 Bb2 d1B Ra7 Qb4 Re4 Re3 Qg4 Rab3 Bc3 Qb5 Rb2+ Kc1 Rc2+ Kb1 Be1 Ka1 Rb4 Qd3 Rc1+ Qb1 Bcb7 Bc2 Bfg2 Bd3 Bh3 Bc4 Ne4 Bd5 Qg7 Be6 Nd6 Bd5 Kg5 f5 Nf7 f4 Kf6 f3 Rc2 f2 Rcc4 Qc8 Ke7 f1R Rc3 Qcf5 Rc1 Rc8 h8R Rf2 Re8 Bc4 Nh8 Bg8 Rcc4 Rc6 Kd8 Rh6 Re7 Rh5 Ke8 Qf3 Rc1 Qg2 Rc2 Qf1 Rcc4 Nd3 Rcc7 Nc5 Rc6
1n6/N1R1r3/PP1rqBP1/rBb1r2N/B3r2k/1r1b1N2/2nNR2B/Q3bK2 b - - 0 1 illegal: No proof kernel
1KN1rk1r/2P3bb/4q2q/n2R1NQ1/2bR1PB1/B1RbN3/3NPn2/b2R2b1 b - - 0 1 illegal: No proof kernel
1R3nRR/6Pb/4N2P/Bb1P1qn1/B4N2/NqR3N1/5brb/qrk1q1QK b - - 0 1 illegal: No proof kernel
b4Bn1/B1R2Qr1/1pn5/qnb5/q2P2NP/q1b2r1B/PB2K3/kN1NN2R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 d4 Kd7 h4 Kd6 f4 c5 f6 g5 f7 e5 h6 g4 f5 b3 f6 e4 h7 g3 Be3 g2 Bd3 c4 Bc2 c3 Rh2 b2 Ke2 Qa5 Rh1 Nc6 Nf3 g1Q Bc1 e3 Ne1 Ra7 Bf5 c2 Bh3 Qg5 Qd3 Qa4 Qb3 Be7 f8N b6 f7 Bb7 Ne6 Ba8 f8B Qe5 Nc5 Qh5+ Kf1 e2+ Kf2 Qg5 Ncd3 Qd2 Kf3 Qda5 Nf2 Rb7 Nd1 Rd7 Nd3 e1B Ke2 Bc3 Ne1 Ra7 Be3 c1Q Bg5 Kc7 d6+ Kb7 d7 Ka6 d8N Bc5 Qf7 Kb5 Bf4 Kb4 Bb8 Rb7 Ba7 Rc7 Qf1 Rg7 Nf7 Kc4 Nh6 Kb4 Qf5 Kc4 Ng4 Kb4 Nd2 b1N Qf7 Na3 Rb1+ Qb2 Rc1 Nb5 Rc2 Qba3 Nb1 Rg6 Bh6 Rg7 Be3 Nge7 Bf4 Rf8 h8B Ng8 Bh6 Bb2 Bc1 Bc3 Qe8 Rf3 Qf7 Rg6 Bf6 Rg7 Be7 Bd2 Nde3 Ne5 Qf4 Bd6 Rc8 Bc5 Bf8 Nc6 N1g2 Be1 Rc7 Bd2 Qf7 Be1 Nd2 Kc3 Nd1+ Kc2 Nb1 Bc3 Bg5 Bd2 Ne1+ Kc1 Ndc3 Kb2 Nd1+ Ka1 Bh6 Bdb4 Bc1 Bc3 Bb2+
N5Bq/4Nprr/2R3BP/2BKP1P1/b7/1Q1Rb1nr/B1R4k/n1q1b1Rn b - - 0 1 illegal: No proof kernel
1R2nnr1/rN5k/1NPP1nRb/n3p2B/4B1Q1/2q1B2b/P1Rn4/3KRBb1 b - - 0 1 illegal: No proof kernel
r1Q2BNN/b2b1P1P/N2rN3/3BB3/bb3R2/1q2B3/rb1p1RP1/1nnk3K b - - 0 1 illegal: No proof kernel
R7/rR1PPnq1/1K1bpn2/N1nRP3/2bn2r1/rB1N3N/1Q1nR2k/1B2N3 b - - 0 1 illegal: No proof kernel
kn2N1q1/1QrpR2b/B3PK2/N1R1B1r1/6PP/B1Bb1R2/1b2R2n/5bbn b - - 0 1 illegal: No proof kernel
2q4b/1pPk4/1BN2B2/1NB1PKR1/rPnb1N2/2Bn2bQ/r3b3/Rnb3N1 b - - 0 1 illegal: No proof kernel
2QNN3/1RBB1B1P/N1N5/1r1Bk2q/Pr2r1b1/n4nr1/KpP1b2b/2R1n3 b - - 0 1 illegal: No possible last move
4B2Q/2BKB2N/1q1R2qr/k2b1n2/3PpP1b/3R3r/2b3RP/n1NnBb1R b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 c5 Ke4 Kc7 Ke5 Kb6 f4 g5 d4 b3 a4 g4 d6 g3 f6 b2 d7 c4 Ke6 c3 f7 g2 h6 c2 h7 Ka5 Ra3 b5 Nh3 g1Q Ng5 b4 Qd2 Ba6 Nc3 b1B Qg2 b3 Nf3 b2 Qg7 Nh6 Ne2 Nf5 Ng5 Nc6 Bd2+ Nb4 Be1 c1N Rd3 Na2 Nc1 Nc3 Be2 Bb7 Bh5 Bc2 Bg6 Qc7 d8B Qb6+ Kd7 b1B Bc7 e5 Bh5 Bc5 f8B e4 Be7 Nd1 Be8 Ra6 Qf6 Bd5 Qf8 Rg8 h8R Qg3 Rh4 Rh8 Rg4 Rh3 Nh7 Qg1 Rg7 Qg6 Qh8 Bba2 Rf7 Bd6 Rf6 Be5 Rd6 Bac4 Rg3 Bf1 Rd3 Ra8 Qf8 Bf6 Qh8 Ka6 a5 Bh4 Rd2 Kb5 a6 Ka5 a7 Rb8 Rg2 Rc8 Bcd8 Rc6 a8R+ Kb5 Bf7 Qh6 Re2 Bb1 Re6 Nc2 Bc7 Na1 Rg2 Bc2 Ra3 Qf6 Rc3 Ka5 Be8 Qg7 Re5 Rg6 Re6 Rh6 Rd6 Qg6 Rd3+
q1b3N1/r1R1q3/1Nr2p1r/1R4n1/k1Br4/b1KPnQ2/1PRRbP2/N4N1B b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 Qd7 a4 Qd6 axb5 Qd8 d3 h5 gxh5 e5 Kd2 e4 Kc2 e3 Bd2 exd2 e4 Kd7 h4 g5 e5 a5 b6 c5 d6 Kc6 b7 Kb5 h6 c4 h7 a4 h5 a3 e6 g4 e7 f6 e8B+ Ka5 h6 a2 d7 g3 Bg2 c3 Qf3 Bg7 Ne2 Qc7 d8N Kb4 Nf7 Qc5 Rd1 Nd7 b8N Ra7 Nc1 Ne7 Bh1 g2 Nb3 Nf8 Bb5 g1R Bc4 Ka4 Nd7 Nf5 Rc1 Qe7 Nb6+ Kb4 Rd1 Ne6 Rc1 Rd8 h8R Bf8 h7 Ng5 Nh6 Rd4 Rg8 Rg3 h8R Rh3 Rg7 Rh2 Ng8 Rh6 Nd7 Ka4 Rf7 Rg6 Rh5 Rh6 Nb6+ Kb4 Kd1 Ne3+ Ke2 d1B+ Ke1 c2 N1d2 Ra6 Nf1 Ra7 Kd2 Be2 Rab1 a1Q Rd1 Qa5 Na1 Qd5 Rbc1 Ka5 Kc3 Qa8 Nd5 Ka4 Rd2 Qeb7 Rc7 Ba3 Rcd1 c1R+ Rc2 Bd7 Rd2 Bc8 Rc6 Qd7 Rc7 Qe7 Nb6+ Ka5 Bb3 Rd1 Rc1 Kb5 Bd5 Ne6 Kb3 Re1 Re5 Ng5 R1c6 Rc1 Be6+ Rc5 Bf7 Rcd5 Rcc2 Rc5 Bd5 Rc6 Rf5 Ka5 Bc4+ Qe5 Kc3 Qc5 Nd7 Ka4 Re5 Qd6 Rb5 Qe7 Nb6+
3bR2N/rq2R1Br/1Brp2BQ/1R1R4/n3k1KP/r1q3nP/P3B2N/6bb b - - 0 1 illegal: No possible last move
1bqBQ1K1/4q1P1/r2r4/kR1n2Nb/1Nb1p3/PnRRn1P1/BR6/4Nb1N b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 b5 Kd4 h5 Ke5 c5 f4 Kc7 d4 Kb6 d6 b3 g3 b4 g6 e6 f6 h4 d7 c4 g7 c3 a3 c2 d5 b2 d6 b3 f5 h3 f7 h2 f6 Rh3 Bg5 c1N Nc3 b1B Qe1 b2 Bc4 Ne2 Ne4 Nc1 Nf2 Be7 f8R Ba2 f7 b1B Nf3 Bd3 Rb1+ Nb3 Rb2 Nh6 Bf6 Qc7 d8N Ra6 Nc6 Bf1 Nb4 Nf5 Qe2 Rh7 Ne1 Rh6 Qe4 Qc6 d7 Ne3 d8R Ka5 Rd3 Qe8 Rg1 h1Q Qg6 Qh2 Nh1 Qh3 Bh4 Bc5 Kf6 Ba7 Rh8 Bd7 f8N e5+ Ne6 Nc6 Ng5 e4 Rgg2 Bb8 Rgc2 Bf5 Rcc3 Bg4 Be6 Qd8+ Kf7 Qe7+ Kg8 Bh5 Qe8 Qf5 Bf7 Rd6 Rh6 Qc8 Bc4 Nd8 Rf6 Ne6 Bd5 Nc7 Rg6 Rd8 Rb6 Rd6 Bf7 Na1 Bd5 Bc4 Be6 Bb5 Ba2 Ncd5 Nh7 Bc4 Bf6 Qed7 Bd8 Qe7 Ng5 Nb3 Rb5+
1Q2br1q/k1R1q1P1/b2B4/2R2N2/1np2r2/B1KBnRbP/1PN5/1r1r2RB b - - 0 1 illegal: No possible last move, all moves rejected
5KB1/RRqP3B/3R4/r1R3N1/NP3brB/5bkn/1npQP1rq/nr5B b - - 0 1 illegal: No possible last move
k5K1/1p2QBn1/3NPqN1/qnbRNbB1/2r3P1/bN1RB3/3b3P/2B1rr2 b - - 0 1 illegal: No proof kernel
2N1n1b1/p2nN3/1b2R2Q/4B2q/Rnn1PrR1/P4qPN/RN3r2/BKbk4 b - - 0 1 legal: proof: f4 c5 d4 h5 b4 e5 dxe5 g5 bxc5 h4 fxg5 h3 g3 Bd6 Bg2 hxg2 Nc3 Be7 Nb1 Bf8 Kd2 Ke7 c4 Ke6 Kc2 Kf5 h4 Ke4 h5 b5 e6 f5 e3 d5 e7 d4 e8R+ Be6 c6 d3+ Kb2 b4 c5 d2 h6 Kd3 a3 f4 g6 f3 e4 b3 c7 f2 c8R f1N g7 Nd7 c6 Ngf6 g8N Ne3 h7 Ned5 c7 Bh6 Rh4 Nb4 Ne7 Bg8 Nh3 g1B Nc3 Bb6 Kb1 b2 Qh1 d1Q Ncd5 Qf3 Ra2 Ke2 Bf4 Bg5 Bd6 Bc1 Rg4 Kd2 Qh2+ Kd1 Ndf4 Rb8 Be5 Rb7 Rf8 Qe8 Nd3 Qh5 Rfe8 Rb8 Rcd8 Rb7 c8N Rc7 Nf5 Rc2 Re6 Ne8 Nfe7 Rf2 Ndf4 Bf7 Nd3 Rf8 h8B Bg8 Bhg7 Rf4 Bh8 Ndf6 Rd4 Nd7 Bhg7 Nd5 Ra4 Nb4 Qh1+ Ke2 Bd4 Qe3 Bge5 Qh8 Ng1+ Kd1 Qh7 Qe2 Nh3 Qf3 Qg7 Qh4 Qh6 Qh5 Ra1 Nc6 Ka2 b1N+ Bb2 Nd2 Bbd4 Nf1+ Kb1 Nb4 Ra2 Ne3 Ba1 Nc4 Nb2+
1N2r3/n4r2/r2PPPR1/r2b1p1R/1K1NrBBk/2R1q1bB/4R1r1/BQ1n4 b - - 0 1 illegal: No proof kernel
1n1r1rB1/4b3/Bq1Bb1br/1NPP1Rr1/bP2kR2/3N1n2/KpB3N1/4N1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
rB1b2R1/2bP2KB/1Q3rN1/1R2b1qk/3rN1RN/P5PR/1pn1n1b1/6rN b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Kd3 e5 Ke4 h5 d4 b5 f4 c5 a3 h4 d6 c4 d7 b3 g3 b4 f6 Kg6 d5 h3 d6 b2 f7 b3 Qd2 c3 f5+ Kh5 f6 h2 Kf5 c2 g6 e4 g7 e3 Ke5 e2 Nh3 e1B Bd3 Nh6 g8R Be7 f8N Nf5 f7 Ne3 Rg4 Bb7 Bh7 Bg2 Qd4 Bc3 Ng6 Rf8 Nd2 b1R Ne4 Nc6+ Ke6 Bg5 Qb6 Be5 Nhf2 b2 Nh4 Bgf4 Rf1 Qg5 d8R h1R d7 Rg1 Nh1 Bc7 Rf3 Bfe5 Rf5 Rd1 Bd2 c1B Rc8 Nc4 Bf4 Ne3 Re8 Nc2 Rd8 Bh8 Rb5 Rd4 Rc8 Bd8 Bb8 Bc7 Re8 Bhe5 Rd8 Bd2 Rc8 Rg1 Rc1 Rh8 f8N Ba5 Nfg6 Rf8 Rd1 Rff1 Rg8 Bd8 Qb7 Bac7 Qb6 Bf3 Kf7 Bg2+ Ke8 Rf6 Rd2 Rfd6 Kf8 Rf6+ Kg7 Rc4 Rf2 N6d4 Rf1 Ne2 Rff4 Rd4 Rf2 Bf3 Rh2 Bg2 Rh3
NRN3B1/rPbNp1KQ/R1b5/6BB/PBkNrr2/1b2P1q1/q7/2q1nq2 b - - 0 1 illegal: No proof kernel
2RB1r2/BQ3RB1/NK6/1P4r1/1r1npP1b/1b2R1qP/q1B1p1q1/1k2NR1n b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 h5 g4 Rh6 gxh5 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 Kf5 Kc5 e5+ d6 a5 f4 g5 d4 g4 b4 e3 h3 Ke4 h6 g3 b6 e2 b5 a4 h7 a3 d5 g2 b7 a2 Na3 Be7 Rb1 a1Q Qb3 Bh4 d7 Nh6 d6 Ra4 Bd2 Nf5 Qf7 Kd3 Bc3 Qg5 d8R Rf8 h8R Ng3 d7 Nc6 b8B Rb4 Ba7 Nd4 Rb3 Qa2 Nf3 g1Q Rh7 Qg2 Nc2 c6 Kb6 c5 Qd5 c4 Qb7 Qg8 Rg1 Nh1 Rf7 Q8g7 Re8 Q7g3 d8B Be6 Ra3 Q2h2 Bg2 Bd5 Ba1+ c3 Rf1 Bb3 Nfe1+ Kd2 Be4 Kc1 Bd5 e4 Bc4 Ba4 Bb3 Kb1 Bb2 Qhg2 Ba1 Rc4 Nb4 c2 Na6 c1R Bd1 Rb4 Re3 Rc5 Bc3 Rg5 Bb2 Nf3 Bg7 Bc2 Re5 Ba4 Rc5 Bb3 Rc8 Nd4 Bc2+
Bq1r4/k3N3/qnKNbpR1/3p2Bn/1PQ5/b2R1N2/NRPP1n2/R1r1r3 b - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 b5 b3 e5 a3 c4 bxc4 b4 axb4 exf4 Kf2 a5 Kf3 g5 Ke4 g4 Kd5 f3 h4 g3 e4 a4 e5 g2 h6 f2 h5 a3 h7 a2 e6 d6 h6 Ba6 e7 Kd7 e8N Kc8 c5 Kb7 c6+ Kb6 c7 Bg7 Nc3 Bc8 Nf3 g1N Bg2 f1Q Bb2 Qa6 Qf1 Ka7 Qc4 Nh3 Rhb1 Nd7 Bh1 Nb6+ Kc6 Be6 c8N+ Kb8 Ne7 Nf2 Bg2 Nf6 Bh1 Rg8 h8R Ka7 h7 Qb8 Bg2 Rf8 Rg8 Nh5 h8R Bd4 Rh6 f6 Rg3 Rh8 Rhg6 Rh7 Nd1 Be5 Bd4 Rh6 Bc5 Bb2 Nc3 Ba3 Be3 Rh7 Rb2 Rg7 Rh1 a1R Na2 Re1 Bg5 Rg8 Ng7 Rd8 Ngf5 Re3 Ra1 Re1 Nh2 Rc1 Rd3 Re1 Nf3 Rc1 Bh3 d5 Nd6 Bc8 Bd7 Re8 Ng8 Ree1 Be8 Be6 Bd7 Qf8 Ne7 Rd8 Bc8 Rd7 Bb7 Qb8 Ba8 Rd8 Qf4 Rb1 Qh4 Rbc1 Qc4
1bqR2B1/B3nb1N/1n1p1q2/1Qr2nBP/3N1N1R/pr1b2P1/1PB3K1/2k2N2 b - - 0 1 illegal: No proof kernel
2b2R1r/4N3/rNP1k1BP/2Nn2pK/4rQ1n/1RRp1P2/n4b1N/3RBq1q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 Ke2 Kf7 Kf3 a5 Kg4 d5 h4 e5 c4 g5 b4 d3 c5 a4 c6 a3 b6 e4 b5 a2 h6 d4 h5 d2 h7 e3 b7 e2 b6 e1R h6 Ra5 Qf3 d1Q Rh3 Bd7 Bd3 Bb4 Kh5 Re8 f6 Be7 Nc3 Bc5 Na4 Re6 Bd2 Ne7 Be1 Re5 Bg6+ Ke6 f7 Na6 b8R Re4 f8R Bc8 b7 Nf5 Nb6 Nh4 Rb1 Qe2 Rd1 Qf1 Qf4 a1N Nf3 Nb4 Nh2 Nac2 Rc3 Ra6 f3 d3 Bd2 Ne3 Be1 Rg8 h8N Qe7 Bh7 Ned5 Ng6 Qg7 Ne7 Na2 Bg6 Qe5 Ra8 Be3 b8N Bf2 N8d7 Rh8 Rb8 Qg7 Na8 Qf7 Rbb3 Qf5 Nab6 Q5h3 Nb8 Qh1 N8d7 Q3f1 Nc5+
2qnNk2/R1R1Q1b1/1P1B3N/1rN3pR/q2qb3/2P3np/rP1Nb2R/2KB4 b - - 0 1 illegal: No possible last move, all moves rejected
R1N1r3/1qqr3P/1Qk1bn2/4nNN1/pb1R1BRp/1R1b1NP1/P4r2/5BK1 b - - 0 1 illegal: No proof kernel
1QNn1q1r/1rN1pn1b/1RR2Rk1/B3r3/Kp1n1bP1/4R3/2P2PN1/1BNq4 b - - 0 1 illegal: No possible last move, all moves rejected
1R1bB3/3P2K1/2nP2bn/p2P4/p1rB2R1/N2q1rn1/2BRQ2b/BNR1q1k1 b - - 0 1 illegal: No proof kernel
1K5B/r1pN4/1Prk1nNR/3b1Rp1/q1rP4/2Qn1q2/1nRP2B1/B1b1B1R1 b - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 hxg4 c3 f5 exf5 d4 cxd4 Be6 Qf3 Bd7 Qd1 Bc8 Ke2 Kd7 Ke3 a5 Ke4 g5 Kd5 e5 b4 e4 h4 e3 f4 a4 f6 a3 b6 e2 b5 e1R h5 a2 f5 g3 h6 g2 f7 Bb4 f8B Qf6 b7 Be7 h7 Re4 Qb3 Re2 Bb2 Ra7 Nh3 g1Q Nf4 Qg7 f6 Qg4 f7 Qf6 Ng6 Re6 Na3 Rc6 Bg2 Qd1 Rh6 Rc4 Qc3 Qa4 Rg1 Nc6 b8R Ne5 Ba1 Nd3 b6 Ba6 Ra8 Nb2 Bg7 Bb5 f8R Qf2 Rf5 Qf3+ Ke5 Kc6 Ke6 Nf6 Bf8 Rg8 h8B Ba6 Bfg7 Bb7 Bf8 Bc5 Bd6 Rd8 Bg3 Rd6+ Ke7 Re6+ Kd8 Bd6 Nc2 Ba3 Be1 Kd6 Ne3 Bd5 Kc8 Nd3 Qc2 Bc1 Ng4 Nb2 Qd3 Re3 Qb3 Rec3 N4e5 Rc6 Nd7 R3c4 Qc2 Nd1 Bc3 a1N Kb8 Nb3 Ba1 Nc5 Qb2 Nd3 Qc3 Qb4 Kc8 N1b2 Kb8 Ra2 Ra5 Qb3 Rb5 Ra7 Rc5 Qa4 Qa5 Rb4 Rc2 Rbc4 Qc3
q6B/2p3bK/qP3pn1/2N2R2/1B1rNQnR/rbPNP3/3N3n/2k2BqB b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 e5 fxg5 hxg4 d4 Rh5 dxe5 Rh8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 b4 d6 h4 f6 c3 a4 e3 a3 h5 g3 g6 a2 h6 g2 h7 Nd7 b6 Qe7 b5 Ra7 b7 Ra3 b8N Nh6 g7 Ng4 b6 Nh2 Qa4 Qd8 Ne2 g1Q Na6 d5+ Kf4 d4 Nd2 Kd5 Kf5 d3 e6 Ne5 g8B Qe8 Qf4 Bg7 Nc5 Ng6 Bf7 Rf8 h8B Qc6 Rb1 a1Q Rb5 Qa8 Bb2 Re8 Nc1 Rd8 Be8 Bb7 e7 Bc6 Ra5 Ba4 Bb5 Bb3 e8N Qa2 Nd6 Rd7 N6e4 Rd6 Nc4 d2 N1d3 d1N Ncd2 Nf2 Bc1 Nfg4 Bd7 Ra4 Ba3 Qa1 Bb4 Ra3 Nb1 Kc4 Bc6 Rd4 Rb5 Nf3 Rh4 Qa2 Ng3 Nfh2 Bh1 Qa6 Nge4 Qag2 Ke6 Qf3 Kf7 Qfg2 Kg8 Qf3 Nef2 Qfa8+ Kh7 Bd1 Nd7 Kb3 N7c5+ Ka2 Nfe4 Bb3 Nbd2 Ka1 Ne5 Kb2 Ned3+ Kc2 Nd7 Kd1 Rf5 Kc2 N7c5 Kd1 Ne1 Kc1 Ned3+
N2B1B2/1p3b1k/2N1rBq1/nPr1BNQ1/q3r2P/1N1R1Kbn/1RnP3p/8 b - - 0 1 illegal: No proof kernel
Rq1Nn3/1p2Rb2/1bbr2P1/1PBpnRR1/qQ6/N3PB2/Nk1n1K2/6Nr b - - 0 1 legal: proof: f4 c5 d4 e5 fxe5 cxd4 h4 g5 hxg5 Qc7 Qd3 Qb6 Qd1 Qd8 Nc3 Qb6 Nb5 Qc7 Nxa7 Qd8 a4 Ke7 g4 Ke6 b4 Kd5 c4+ Ke4 b5 f5 g6 h5 e6 d5 g7 d3 a5 Kd4 e7 Kc3 e8R f4 a6 h4 e3 d2+ Kf2 h3 c5 f3 g5 h2 g6 Bd7 c6 Qe7 c7 Rh4 c8N Qd6 Re7 Bc6 Nb6 Nf6 g8N Ne8 Qa4 d1Q Nc4 Nd7 Be2 Ne5 Nh6 Rd8 Ba3 Qb8 Nf7 Rd6 Bc5 Qd4 Na3 Kb2 Qa5 Qa4 Rf1 Rh6 Nd8 Bg7 Kg3 f2 Bf3 Rh7 Rc1 f1N+ Kf2 Nd2 Rf1 Bd7 Nac6 Be6 a7 Bf7 Ne2 Bf8 Rhg1 h1B a8R Bg2 Nb4 Bh3 Rg5 Bd7 Ng1 Bc6 Na2 Rh1 Ra1 Bg7 Re1 Nec4 Ra1 Bd4 Rc1 Ne5 Rc4 Bc3 Rf4 Bd4 Rff5 Rh7 Bb4 Bb6 Bc5 Rh1 Qb4+
n1R5/P3nK1P/n2kBBr1/bp2NRNb/1Np5/b1B1B1q1/1r1q3P/4QN2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Kd3 c5 Ke4 e5 f4 b5 d4 g5 a4 g4 h6 g3 h7 b3 f6 g2 Kf5 e4 Kg6 e3 f7 e2 f5 e1N f6 b2 a5 c4 a6 Qe8 d6 Nh6 d5 Qe3 Nf3 g1B Bh3+ Nf5 Ne5+ Kd8 d7 Kc7 d8B+ Kd6 Nd2 b1Q Nf1 Qd4 Be3 Be7 f8N Nf3 f7 Qf4 Qe1 N3d4 Ne6 Qc1 f8B Rg8+ Bg7 Qd2 Ng5 Ne6 Kf7 Nc7 a7 Nba6 Rd1 Qg3 Bh8 Bf8 Bdf6 Ne7 Be6 Rg6 Bhg7 Bf2 Rg1 Bd7 Rg2 Bg1 Rf2 Re8 Rf5 Na8 Ra1 Nc5 Ra6+ Bc6 Rb6 Na6 Rb8 Rd8 Rc8 Rd7 Bf4 Bb6 Be3 Ba5 Bf4 Kc5 d6 Rd8 d7 Kd6 Bh8 Bf3 Be3 Bh5 Bhg7 Re8 d8N Qc1 Nec6 Ng8 Bc3 Qb2 Bd5 Kd7 Bgf6 Ba3 Bed4 Kd6 Nb4 Re2 Be6 Ne7 Ndc6 Qc1 Bb6 Rb2 Ne5 Qd2 Be3
3BNK2/2r1r1B1/2RB1nbN/n1qk2RP/1Q2rbPr/PN6/2pp2BN/3r4 b - - 0 1 illegal: No proof kernel
4Rn1b/bb3r2/P1r1k3/1bqpB1Q1/N3pB2/2B1P1NP/R1NN1nK1/1b1B4 b - - 0 1 legal: proof: d4 a5 g4 h5 b4 axb4 Qd3 c5 dxc5 f5 gxf5 h4 Qh3 Ra4 Qxh4 Ra6 Qh7 Ra8 f4 Kf7 Kf2 b5 a4 e5 c4 d5 a5 b3 c6 b4 f6 b2 f5 e4 a6 b3 c5 Be6 c7 Qd6 c8N Qd7 c6 Bb4 c7 Be1+ Kg2 Bd2 Qh6 g5 Na7 g4 c8N g3 Qg5 Bb4 Nb6 Qb5 Bf4 Rh6 Ra2 Nd7 Na4 Rf8 Nc6 Qc5 Nd4 Bc3 Nd2 b1B Nc2 b2 h3 Rg6 Rh2 Nh6 e3 Ng4 Ne2 Nf2 Rh1 Be5 Rh2 Bb8 Rh1 Ba7 Rg1 Rh6 Ne1 Bd3 Nc2 b1B Be5 Ke8 Bc3 Kd8 f7+ Rf6 Be5 Ke7 Bc3 Rc8 f8B+ Kf7 Bd6 Bb5 Bc7 Nf8 Bf4 Rc6 Bce5 Bc8 Bc3 Rg6 f6 Ke6 f7 Bb7 Bfe5 Rg7 Bf4 Nd7 f8B Rf7 Bfg7 Nf8 Bge5 Nd1 Kh1 g2+ Kh2 Nf2 Ng3 Qa3 Be2 Qc5 Rf1 g1B+ Kg2 Bh2 Bd1 Rd6 Nh5 Bg3 Rg1 Bh4 Ng3 Rc6 Qg7 Bf6 Qg5 Bh8 Rf1 Ng6 Nf5 Rd7 Bg3 Nh1 Rf4 Nf2 Rh4 Bf6 Bgf4 Rf7 Rh8 Bg7 Ra8 Bh8 Ng3 Nf8 Re8+
bB1r4/6P1/N1Br2kr/n5rR/1p3Bb1/pPBR1R1N/1nR1KP2/1Q1r2q1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 c4 gxh4 cxd5 f5 exf5 Bg7 a5 Bc3 Ra2 Bd4 Ra1 Bb6 axb6 Bd7 Na3 Be6 Nb1 Bc8 d4 Kf7 g4 c5 b7 e5 g5 a5 d6 h5 f6 e4 b3 h3 d5 b4 d7 a4 d6 a3 Qd5+ Kg6 f7 c4 f8R c3 Be2 c2 Rh2 h4 Qe5 e3 Bb2 c1R+ Bd1 e2 Qc5 Rh6 Rf3 Na6 b8B Ne7 Ra2 Qg8 d8B Bg4 d7 Nc6 Bdc7 Na5 d8R Rc4 Bh8 Rd4 Rc2 Rd6 Nc3 Qg7 Qd4 Nc5 Nb5 Na4 Qa1 Nb2 Qb1 Rh5 Rh1 h2 Nh3 Qg8 Bd4 Qg7 Kd2 e1R Rd7 Rg1 Ke2 Rh6 Bc3 Rg2 Bb6 Qg8 Nc7 Qg7 Na6 Rg3 Rf1 h1R Be3 Rg2 Bf4 Rgg1 Ba7 Rd8 Bb8 Rg3 Rg1 Qg8 Rg2 Qg7 Rh2 Rf1 Ng1 h3 Rh1 h2 Nh3 Rc6 Rd3 Rcd6 Rg1 h1B Rg2 Kh5 Rh2 Rgg1 g6 Re1+ Kd2 Re5 Be2 Rg5 Bf1 Qg8 Bg2 Rd1+ Ke3 Qd5 g7 Kg6 Ke2 Qe5+ Be3 Qg3 Bf4 Bf5 Ng1 Bg4 Rh4 Qh2 Nh3 Qg1 Rh5 Bf5 Rg3 Be6 Bc6 Bg4+ Ke3 Bd5 Rf3 Be4 Ke2 Bd5 Bb5 Ba8 Bc6
bBKB1q2/b4BP1/k2pRb2/Bbp5/N4r1n/N2P3P/br1R3R/R2Q1n2 b - - 0 1 illegal: No proof kernel
2B5/R1p2qQr/r1r1bNbr/4p3/B2nP3/BPP1rNnR/1R5K/1RB1k3 b - - 0 1 legal: proof: h4 d5 a4 g5 hxg5 b5 axb5 d4 e3 Bg7 Ke2 dxe3 Kf3 e2 Ke3 Bd4+ Kf3 Be3 fxe3 Qd3 Kf2 Qd8 Kg3 Kd7 d4 Kd6 g6 Kd5 g7 Ke4 b3 e1R c3 a5 d5 e5 b6 h5 b7 f5 d6 h4+ Kh3 f4+ g4 f3 d7 f2 g5 a4 g6 a3 Qd6 a2 Kh2 h3 Qf8 Qf6 d8B Ra6 Bb5 f1B Nf3 Rh6 Ba4 Kd3 Be7 Ke2 Bea3 Rc6 Nbd2 Qf7 Ne4 Nf6 g8B Nh5 g7 Ng3 Rb1 a1R Nf6 Be6 Bh7 Kd1 g8R Bd3 Qg7 Bg6 e4 Ke2 Rf8 Kf2 Rh8 Re3 Rf1+ Ke2 Rf2+ Kd1 Rfb2 Ra2 Kg1 h2+ Kg2 h1R Bg8 Nd7 b8R Nf8 Rb7 Rh7 Ra7 R1h6 Nh4 Ke1 Kh2 Qd7 Bf7 Ra1 Be8 Qf7 Bd7 Ra2 Be7 Ra3 Bc8 Ra1 Bb5 Raa6 Ba3 Bh3 Ba4 Ne6 Rd8 Bhf5 Rdd2 Nd4 Rg2 Nh5 Rg3 Be6 Rh3 Ng3 Nf3+
1r1b1Q2/PR1N4/3K2RB/rRPN2rP/4r3/1B1p1pN1/2q1nN1R/1b2krn1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Kg3 Ke6 Kf4 b5 c4 d5 e4 f5 a4 d4 h4 g6 c6 b3 c5 b4 a5 b2 a6 b3 h6 Ne7 h7 Nd7 c7 Nc6 h5 Be7 Rh2 Re8 Nc3 b1R h8R b2 Nh3 Ra7 Nf2 g5+ Kf3 g4+ Kf4 g3 Nd5 g2 Rg8 g1R Ra5 Rg2 Qf3 Rg5 Bc4 Ra8 Bd2 Rf1 Rb5 b1R Bb3 Rb8 a7 Ra1 Bc1 Ra5 Rg6+ Bf6 Be3 Qe7 Bc1 Qh7 Bd2 Bb7 c8N Ba6 Rb7 Bd3 Ncb6 Bb1 Bc1 d3 Be3 Qh6 Bd2 Nd4 Bc1 Kf7 Be3 Bd8 e6+ Kf8 e7+ Kf7 Bc1 Ne5 Nd7 Qh8 Be3 Qf6 Bd2 Qa6 Be3 Qc4 Bc1 Qc2 Be3 Rf8 e8N Re1 Nef6 Ke6 Rb5 Re8 Bd2 Rf1 Bc1 Nc4 e5 Nd2 Qg2 N2f3 N6e4+ Bf6 Bd2 Ng1 Qf3 Re7 Ng3 Nde2+ Ke3 f4+ Ke4 Ra8 Qe3 f3 Qf4 Rb8 Bc1 Rf5 Qh6 Ree8 Qf8 Re7 Bh6 Rg5 Ngh1 Nc3+ Kd4 Kf5 Kc4 Ree8 e6 Re7 Rb7 Ree8 e7 Nce2+ Nc3 Kf4 Ng3 Ke3 Rb5 Qa2 Nd5+ Kd2 Rb7 Ke1 Rb5 Rec8 e8R Bd8 Ree6 Rc7 Reb6 Rc6 Rb7 Re6 Qf5 Re3 Qf8 Qc2+ Nc3 Rg4+ Kd5 Ree4 Kd6 Rg5 Nd5
1kBK1NB1/3b2nq/2b1R2Q/N1b1pp2/1Rr4B/4P1nP/3P2R1/2brBr1R b - - 0 1 legal: proof: c4 b5 a4 g5 axb5 d5 cxd5 h5 f4 gxf4 Qc2 Qd7 Qf5 Qd6 Qxh5 Qd7 Qh7 Qd8 Kf2 Kd7 Kf3 f5 g4 c5 b4 Kc7 b6+ Kb7 h3 a5 e3 c4 d6 a4 d7 a3 b5 c3 g5 a2 g6 e6 g7 c2 Qh6 Be7 Bb2 c1B Ne2 Rh7 Be5 Ra5 Na3 Bf8 Nd4 Ra7 Nc4 Ka8 Na5 Qc7 d8B Na6 b7+ Kb8 Bh4 Nf6 g8B Ne4 Bef6 Re7 Be1 Nac5 Bfh4 Ng3 Rh2 Ra6 Rg2 Bd7 Rb1 a1R Be2 Ka7 b8R e5 Ne6 Rg7 Re8 Rg4 Re7 Kb8 b6 Qa7 b7 Rc6 Kf2 f3 Ba6 Rc4 Rb4 Rc8 Re8 Bd6 Nf8 Ne6 Re7 Ng7 Re6 Bc5 Rb1 Kc7 b8R Rf4 R8b4 Qb7 Kg1 f2+ Kh2 Qa7 Bb7 f1B Ba6 Bfb5 Bb7 Rb8 Bc8 Bbc6 R4b3 B1a3 Bf6 Nh1 Bf2 Rc4 B6h4 Be8 Bg5 Nh5 Rbg1 Rf1 Be1 Rbb4 Rb2 Ra4 Rb4 Bb2 Bf6 Ra1 Be7 Rd1 Bf6 Nf2 Rh1 Bc1 Bg5 Qb7 Be7 Kb8 Bd8 Nf6 Kg3 N2e4+ Kh4 Ng3+ Kg5 Nfh5 Bf6 Bb5 Bd8 Qh7 Be7 Ng7 Kf6 Bd7 Kf7 Bb6 Bh4 Ba4 Ke7 Bac6 Bb7 Bd4 Kd8 Bc5 Bc8+
B2N2r1/1QbK1bqr/5P1N/BNp5/2R1n2P/p4k1r/1BnN1P1r/n2B1R2 b - - 0 1 illegal: No possible last move
1RBb2K1/k2b3B/nP1Rnp2/2qr2R1/1BB2P2/1nN1n1RN/Q2P1pr1/7b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 c4 d5 cxd5 b4 Qb3 e4 Qf3 b3 axb3 exf3 b4 Bd7 b5 Bc8 Kf2 Kd7 Ke3 h5 Ke4 c5 Kf5 a5 b4 a4 g4 a3 e4 f6 Kg6 Kc7 Kf7 Kb7 e5 c4 d6 h4 e6 f2 b6 a2 g6 h3 e7 h2 e8B c3 g7 c2 d7 Rh6 g5 Rh5 b5 Rh6 g6 Qc7 Nh3 Qe5 d8R Ne7 g8B Nf5 g7 Na6 Bd7 Rg6 Nc3 Ne3 Ba3 c1N Bc4 Rg2 Bb4 Nd3 Bh7 Qc5 g8Q Be7 Rhg1 h1B Bde6 Ra7 Rd6 Bd8 Rab1 a1N Rb3 Kb8+ b7 Bd7 Ra3 Ra8 Kf8 Ka7 b8R Nb3 Qf7 Rh2 Rg5 Rg2 Bg4 Qf5 Kg8 Ndc5 Bf3 Qe5 Bb7 Ne6 Bc8 Qd5 Ra1 Qc5 Rg1 Rh2 R1g3 Rg2 Qg6 Nf1 Qb1 Ne3 Rbb6 Rb8 Qb2 Rb7 Qa2 Rc7 Rb8 Rc6 Rd3 Rd6 Rd4 Rd5 Rd3 Rf5 Rd6 Rd5 b6+
2Nk1qB1/1nnB1rp1/3r4/1b2NP1R/1NpQ2Pb/2P3r1/1N1bRR2/1K3bR1 b - - 0 1 legal: proof: g4 f5 a4 e5 d4 b5 axb5 h6 dxe5 h5 e4 h4 exf5 Nf6 Bf4 Ng8 Bg3 hxg3 Kd2 d5 Kc1 c5 h4 a5 f4 d4 b4 a4 c3 d3 b6 g2 h5 a3 b7 a2 h6 Be7 e6 Qb6 h7 Na6 b8N Qd8 f6 Qb6 f7+ Kd8 f8R+ Kc7 b5 Bg5 e7 Ra7 e8B Bd7 Nf3 g1B Nc6 Be3+ Nbd2 Qb8 Nfe5 Ne7 Rh2 Nf5 Re2 Bh4 Ne7 Kd8 b6 Bb5 b7 Nd6 Nc8 Nc7 Rf7 Qa8 b8N Nb7 Na6 Rf8 Rf5 Rf6 h8R Rd6 Nb4 Qb8 Rb1 a1R Rhh5 Qa8 Kb2 Qb8 Ndc4 d2 Qa4 d1B Bd7 Bd2 Rc1 Ra2+ Kb1 Bb3 Nb2 B3c4 Bg2 Qa8 Bd5 Bd3+ Qc2 c4 Rg1 Qb8 Bg8 Qa8 Re3 Bf1 Qd3 Qb8 Qd4 Ra1+ Kc2 Re1 Re4 Re3 Kb1 Rg3 Re2 Rf6 Rhg5 Rf7 Rh5 Ra6 Rf6 Qa8 f5 Rd6 Rf2 Qa3 Re6 Ra6 N4d3 Qf8 Nb4 Rc6 Ng6 Rb6 Ree2 Rd6 Ne5
1r1NR3/2k2p1N/BbBPbN1b/qrN2P2/7R/Bn1b1r2/P2Q2p1/1nB1K3 b - - 0 1 legal: proof: d4 a5 c4 d5 cxd5 h5 b4 axb4 g4 e5 gxh5 Qd6 dxe5 Qd8 f4 Kd7 h4 c5 e4 b5 h6 g5 h5 g4 e6+ Kc7 e7 c4 e8B c3 f5 b3 h7 c2 h6 g3 e5 b4 e6 g2 e7 b2 Nd2 b1B Ne4 b3 Nf3 b2 Nc5 Nd7 Rh4 Ra6 Ng5 Ngf6 Qd2 Ra3 Ba6 Rg8 h8N Ne4 h7 Nc3 Ng6 Bh6 h8B Rb3 Nce4 Nc5 Nf8 Be6 Nfh7 Qa8 Beb5 Rb8 Bc6 R3b5 Bd4 Nb3 Nc5 Qa7 Bg7 Qb6 Bf8 Qa5 Nge4 Be3 Nb7 Bb6 Nd8 Rb4 Nc5 Rf4 Ncb7 Rf3 e8N+ Kc8 Nef6 Kc7 Qe2 Rd3 Bch6 c1B Qd2 Rf3 Ba3 Bd3 Nc5 b1R Bg5 Nd4 Be3 Rb5 Bg5 Nb3 Rb1 Na1 Rbb4 Nb3 Rbe4 Nb1 Re5 Bd7 Re8 Be6 Qc3 Bb2 Bc1 Ba1 Qd2 Be5 Bc8 Bf4 Ba6 Bh6 d6+
q1Qkn1r1/1R1P4/1rr2pNB/1N4NP/p2BrPB1/b1b3K1/1B6/R3nNn1 b - - 0 1 illegal: No possible last move, all moves rejected
1Qrn2q1/Np1P1B2/nr1r3b/n3RbBr/1PB5/RNK2p2/PBR5/2R3k1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 e4 Ke7 h4 Kd6 d4 c5 Kd2 g5 b4 f5 e5+ Kd7 d6 Ke6 h6 Kd5 d7 Ke4 h5 f3 e6 c4 d5 f4 d6 g4 h7 f2 h6 g3 e7 g2 e8B f3 Rh5 Ne7 Bf7 Nec6 Bb2 Na6 Ne2 g1R Nd4 Rg6 Kc3 Ke3 Qb8 Qe8 d8B Bf5 Bf6 Nd8 d7 Bg7 Nc6 Qg8 Nd2 Bf8 Bh3 f1R Na7 Kf2 Bg5 Kg1 Nb3 Rd1 Rc1 Rb6 Bf1 Rd4 Qe5 Rc8 Qb8 Rcc6 Rh2 Rh4 Re2 Rh5 Ree1 Rd6 Re5 Qg6 Rc2 Rg8 h8R Bg7 h7 Bh6 Bd5 Re8 Rf8 Qg8 Rf6 Rf8 h8R Re8 Rfe6 Rf8 Re1 Re8 R6e5 Rf8 Kd4 c3 Rec1 Re8 Kc4 Rf8 Bf7 Re8 Rd2 c2 Kc3 Rf8 Rb1 c1N Rc2 Qg7 Rg8 Qh7 Rg6 Qg8 Rge6 Re8 Ra5 Rf8 Ree5 Re8 Ra3 Rf8 Nd4 Nb3 Rbc1 Na5 Nb3 Ndc6 Ba1 Rc8 Bb2 Nd8+ B1c4+
1rnb1NR1/8/1BN3r1/1q4QP/kpb2Kn1/Pp1qP1NB/1NB2B2/2bb2R1 b - - 0 1 illegal: No possible last move
1K6/2N1BR2/2Pr2BP/2n2q2/1bB2nNn/Qp3qNk/1PNp2b1/n1BRr3 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 cxd4 g4 h5 gxh5 Qc7 Na3 Qb6 Nb1 Qd8 Na3 a6 Nb5 Qb6 Na7 Qc7 Bxa6 Qb6 Bf1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 g5 Kd5 e5 c4 b5 a4 g4 h4 b4 f4 e4 a5 d3 h6 e3 a6 d6 c5 g3 h7 g2 h5 d2 h6 e2 Qb3 e1N Nb5 d1Q+ Nd4 Be7 a7 Nd7 Kc6 d5 Qa3 b3 Nc2 d4 Bc4 d3 Ne2 g1N Ng3 Rb8 a8B Qf8 Kc7 d2 Be4 Qf3 c6 Ne2 Rg1 Nc5 Rf1 Ng2 Rd1 Nh4 Ra2 Rb5 Bed3 Ra5 Kb8 Nd4 Be4 Ra7 Ra1 Rd7 Bed3 Rd5 Be4 Kf7 f6 Ke6 f7 Nf6 Bg6 Nh5 f5+ Ke5 f6 Kf4 Ra2 Kg4 Ra1 Rg8 h8N Kh3 Ra2 Nf4 Ra1 Qd8 f8B Rd6 Nf7 Qd7 Ne5 Qf5 f7 Be6 Ng4 Bd5 Qb4 Be4 Ra7 Rh8 Qa3 Rh7 Nb4 Nc2 Rd7 Na1 Nc2 Qc3 Rc7 Bg2 Rb7 Qf3 Ra7 Bd8 Be7 Ba5 f8N Bb4 Ne6 Rf7 Rd7 Rf6 Nc7 Rfe6 Bf8 Re2 Rf7 Re1 Be7
rr1n2q1/4K3/Pk2R2b/3rR2P/1p3rR1/2p2Pn1/R3B1bB/B1NBN1Qq b - - 0 1 illegal: No possible last move
3BrQ2/R4p2/N2q4/1nBq4/3bnNBp/1b1PRPPR/1R1r2Bb/K1bk4 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 h4 Ba6 hxg5 Bc8 c4 Kd7 c6+ Ke6 c7 Ke5 b6 Kd4 f3 h5 g6 e5 g7 a5 b7 a4 c5 a3 c6 h4 Nc3 a2 Ba3 e3 Nd5 e2 Rh3 Kd3 Bc5 Be6 c8R e4 c7 Na6 b8B Nf6 g8R Bh6 Re8 Qd6 Bba7 Bf4 Rb8 Bh2 c8B Nc7 g3 Nb5 Nc7 Bb3 Bab6 Ra7 Re7 Re8 Na6 Rd7 Bg2 Qd5 Qc1 Qd6 Qa3 Kc2 Bd8 Qd5 Rb1 a1B Rb7 Bb2 Qb4 Bc1 Ra7 Rd6 Bg4 Rd7 Kf2 e1B+ Ke3 Kd1 Rb2 Rd6 Ne2 Bf2+ Kf4 e3 d3 Rb6 Re5 Ne4 Kf5 Qd6 Nf4 e2 Re6 e1Q Qa3 Qf8 Ke5 Qa5 Ree7 Ba4 Kd5 Bd4 Kc4 Bc2 Re6 Qd6 Ree7 Bb1 Kb3 Bc2+ Ka2 Bb3+ Ka1 Rc6 Bcb6 Rc2 Bc5 Rd2 Re5 Qc3 Qb4 Qc4 Qa3 Qcd5 Ree7 Ng5 Re3 Ne4 Bcb6 Q6e5 Qf8 Qed6 Bc5
2N2n1n/3P2nq/4RQB1/2pR3R/Rk3P1K/nb1r1pN1/2Pbr3/N1qN2B1 b - - 0 1 illegal: No proof kernel
B4R2/3p2R1/P1bb1nNp/1QBPR3/Br1n2P1/1b1Kb3/1R2BNr1/q1k1q3 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 b5 c4 e5 fxe5 Bh6 cxb5 Bf8 b4 axb4 a4 Ke7 d4 Ke6 Kd2 Kd5 g4 Kc4 g6 f5 g7 c5 b6 b3 e4+ Kb4 e6 f4 e5 b2 e7 c4 e8B c3+ Kd3 c2 b7 Kb3 a5 f3 a6 f2 e6 Bd6 e7 Bf4 Be3 Bd6 Bf7+ Kb4 e8R c1B Rf8 Nc6 b8R+ Bb7 Nd2 Nf6 g8B Qa5 Be2 f1Q Nh3 Qa4 Bd5 Qe1 Nc4 b1B+ Qc2 Ba2 Qb2+ Bb3 Nf2 Qa2 Ne5 h6 Rb1 Qa1 Ng6 Bd2 Rbd8 Rb8 Rh5 Rh7 Rg5 Re7 Rde8 Ka4 Bh7 Ba8 Bhg8 Rb4 Bgf7 Re4 Ree5 Rf4 Bfe6 Rf3 Be4 Rg3 Bc4 Rg2 Bed5 Rb8 Bb5+ Kb4 Ba4 Rb7 Qc2 Ka3 Rb2 Rb4 Qc4 Bb7 Qb5 Ba8 Bc4 Bb7 d5 Bc1 Bc5 Be3 Ne7 Nd4 Rg7 Bc6 Ng6 Rh2 Qb6 Rg2 Bcb5 Ba8 Bc6 Bb7 Rd2 Ba8 Qb5 Bb7 Rd1 Kb2 Rd2+ Kc1 Rb2 Bc8 Ba8 Bb7 Rge7 Bc6 Rg7
2K4B/2pnqB1N/7p/q2B2P1/qbb1N3/NP2N1Qn/qk3R1P/rr2B2R b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 g5 a4 d5 cxd5 Nh6 axb5 Ng8 f4 gxf4 Kf2 Kd7 Kf3 a5 Ke4 a4 Kf5 a3 g4 f3 e4 f6 d6 f2 b6 Kc6+ e6 Kc5 d7 Kb4 b7 a2 e7 h6 Ke6 f5 e8B f4 e5 f3 b3 Rh7 g5 Na6 b8N Rh8 Bf7 Bd6 Bg2 f1Q Na3 Kc3 Bd2+ Kb2 Ne2 f2 Nf4 Be7 Qf3 Qb5 Raf1 a1Q Qg3 Qa4 Nd5 Bb4 Be1 Nf6 Ne3 Ng4 Bc6 Bb7 Bd5 Qf8 d8B Qa2 Nd7 Nb8 Bf6 Ba6 Bg7 Bc4 Nc5 Nd7 Ne4 Qc5 Bf6 Rhd8 Bg7 Qca5 Bh8 Bc3 Ke7 Ra6 e6 Rf8 Rfg1 f1Q Rg2+ Qe2 Rf2 Rfa8 Rf6 R8a7 Kd8 Nf2 e7 Nh3 e8N Bb4 Kc8 Rd6 Bde6 Rd1 Bd5 Rb1 Rff1+ Ne5 N8f6 Nd7 Nh7+ Ne5 Rf6 Nd7 Ng4 Qe3 Nd2 Qe7 Ne4 Ra6 Ne3 Rd6 Ba8 Rdd1 Bb7 Ra1 Bbd5 Rdb1 Rf2+
2R3B1/brpn2P1/4q3/1b3rbk/q1n1BpN1/R1B1N3/1b1P1RPK/RB3Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 Kf2 a5 Kg3 f5 e4 Kf7 b4 Kg6 e6 h5 b6 h4+ Kh2 c3 b7 c2 b5 a4 b6 f4 e5 a3 e7 a2 e8B+ Kf5 g6 Kg5 g7 h3 e6 Bc5 e7 Nf6 Bd3 Bd7 Bb2 c1B Qf1 Ra7 Bf7 Nc6 b8R Rh5 e8B Qe7 b7 Na5 Nc3 Qe6 Bb1 Bb5 Bc6 Nc4 Bg8 Nd7 Bce4 Kh4 Re8 Rf5 b8R Rb7 Rec8 Kh5 Nd1 Ba7 Bc3 Ba3 Ra8 Be7 Ne3 Bh4 Nf3 Bg5 Kg1 h2+ Kf2 Rf7 Ne5 Rf5 Rg1 h1Q Ng4 Bb6 Ra3 Ba7 Qe2 Qh3 Rf1 Qg3+ Kg1 Qf3 Qd3 Qd1 Kh2 Qa4 Rf2 Qc6 Bc2 Qe6 Rg1 a1B Bb1 Bb2 Rc1 Bd8 Qf1 Bf6 Bbd3 Bh4 Rca1 Bg5 Bb1
8/1P1P1B1b/1b1B3K/QPN1q3/nNR1n1k1/1p1BN1b1/r1qp1bN1/B1r3R1 b - - 0 1 illegal: No proof kernel
3b1b2/Prpn4/bpPN4/Qb1kBNN1/2q1R1NK/1qP2BR1/r6n/1R2R3 b - - 0 1 legal: proof: c4 f5 b4 a5 e4 axb4 exf5 h5 g4 d6 gxh5 Qd7 Qg4 Qa4 Qe2 Qb3 Qd1 Qc3 dxc3 Ra3 Nd2 Ra6 Nb1 Ra8 a4 Kd7 f4 Kc6 Kf2 g5 Kg3 e5 h4 b3 f6 d5 h6 e4 h5 b2 a5 g4 h7 b6 f7 d4 c5 d3 f5 d2 h6 e3 a6 e2 a7 Bd7 f6 Be6 Bg2+ Bd5 Nf3 Bc4 Nh2+ Bd5 Bf3 Nd7 Kh4 g3 Re1 g2 Na3 b1B Qa4+ Kb7 Qa5 Kc6 Nc2 d1Q Ng4 g1Q Bf4 Qd3 Be5 Rb8 Nce3 Qc4 Nf5 Bd3 Ra4 Qb3 Re4 B5c4 Rb1 Kd5 c6+ Bb5 Re1 Bc5 f8N Qf1 f7 Ngf6 Ne6 Bf8 Ng5 Rb7 Rb1 Rg8 h8N Rg7 h7 e1B+ Ng3 Bd2 Nf5 Be3 Re1 Bec5 Rb1 Bce7 Rbe1 Bd8 Rb1 Bc5 f8R Rg8 Re8 Bf8 Nhf7 Be2 Nf2 Ng4 h8R Nh2 N7d6 Rg6 Rg8 Rg7 Qb4 Ba6 Qa5+ Beb5 Ng4 Rf7 Ng7 Rf4 Ngf5 Qfc4 Be2 Rf1 Bf3 Rf2 Ree1+ Kc5 Bf6 Rb8 Nge4+ Kd5 Ngh6 Qcb4 Rg3 Ra2 Ng4 Q4c4 Ng5+ Kc5 R8e4 Kd5 Bg7 Rb7 Be5
n1NQ1b2/p1Bb2r1/1RN5/2kq3P/K2pq3/P2BR2r/NRP4n/1NrR3r b - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 f5 exf5 h5 g4 hxg4 b4 Bd6 bxc5 Bf8 Kd2 Ke7 Kc3 d5 Kb3 g5 h4 b5 f4 g3 e6 g2 f6+ Ke8 f5 b4 a3 g4 e7 Kd7 e8R Kc6 f7 g3 f6 Nd7 Bf4 Nh6 Bc7 Rg8 Ra2 Ng4 Ka4 b3 Ne2 g1Q Nec3 g2 Re3 b2 Bd3 Rg7 h5 Nh2 Qd2 Qe1 Qd1 g1R Qd2 Bd6 f8R Rb8 f7 Rb3 Rh8 Qe2 f8N Rc1 Ne6 Bf8 Rd1 d4 Rh6 Qf3 Qf2 Qg5 Qh4 Qgd5 Qd8 Qfe4 Rf6 Ne5 Rh6 Bd7 Rf6 Nc4 Rh6 Kb7+ c6+ Ka6 Nd2 b1R Rb2 Ra1 Na2 Rc3 Nb1 Rb3 Qe8 Rc3 Nd8 Rb3 Bb8 Kb6 Rg6 Kc5 Bg3 Rb5 c7 Rb3+ Nc6 Rc3 c8N Nb6+ Ka5 Na8 Ka4 Rb3 Qd8 Rc3 Bc7 Rb3 Rd2 Rh1 Rd1 Rc3 Nd2 Rc1 Nb1 Be7 Rf3 Qde6 Bb5 Qc4+ Ncb4 Rd3 Rb6 Qcd5 Nc6 Bf8 Rg3 Rf3 Bd3 Re3 Rg6 Rh3 Rg3 Qe8 Rf3 Qee4 Re3
K2N3R/nN1pBq1k/2R1r3/4R1b1/2N1Rp1N/3P1P1P/3nnQ1r/3rr1rB b - - 1 2 legal: proof: e4 h5 b4 c5 bxc5 b5 a3 f5 a4 Bb7 axb5 f4 g4 hxg4 Bc4 Bd5 Bd3 Be6 Bf1 Bf5 exf5 Rh5 Qe2 Rh4 Qd1 Rh8 Ke2 Kf7 Kd3 e5 Kc4 g5 f6 Kg6 c6 a5 d3 e4 c7 e3 c8N e2 b6 e1N Kb5 a4 c4 g3 h3 g4 b7 g2 c5 g3 c6 a3 f7 a2 c7 Rh7 Kb6 Qh4 Qf3 Nf6 Nd6 Qh6 c8R Qg7 Nd2 Ne4 Ba3 Nc6 b8R Rh4 Kb7 Be7 N2c4 Nc2 Re1 Na7 Rc6 a1R Rh8 Nd2 Re4 Rh6 Bb4 Qh7 f8N+ Kg7 Be2 Bg5 Ne6+ Kg6 Qe3 Qf7 Nf3 g1R Nd8 Rgd1 Re1 g2 Nh4+ Kg7 f3 g1R Bf1 Re6 Qf2 Nd4 Bg2 Ne2 Bh1 Rc8 Re5 Rc7+ Ka8 Rab1 Re8 Kh7 Ba3 Rcb7 Rg8 R7b2 N6b7 Nc3 R1e3 Ne2 R3e4 Rde1 Re8 Rbd1 Rh8+ Kg7 Kb8 Nb1 Rc7 Nd4 Qf1 Rh2 Qf2 Nd2 Ka8 Ne2 Rcc5 Rc1 Rc6 Rcd1 Re8 Kh6 Be7 Kh7 Rh8+
1NrB1Rrr/k4N1p/2b3R1/nPK2P2/B4BpB/1R4Pq/r2n3q/3rQR2 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 g4 Ra6 Bh6 Ra1 Bg5 hxg5 Bd7 Bd3 Bf5 Bf1 Bc8 Ke2 Kd7 Ke3 c5 f4 Kc7 b4 Kb7 d4 a5 g6 e5 f5 a4 b6 a3 g7 a2 d6 c4 g3 c3 d7 c2 d5 Qf6 d8B Ra5 d6 Bd7 Na3 Ra8 Qe1 Qh4 Nh3 Nf6 g8R Bc6 Rb1 a1R d7 Ra2 Ng5 Qh2 Nc4 Ka6 b7 Ka7 Bd2 c1R Na5 Qh3 Rb3 Rc4 Ke2 e3 Kd3 e2 Bf4 Ne4 Nf7 Nd2 Rg6 e4+ Ke3 Rcc2 Kd4 e3 Bh4 Rc1 d8B Rd1 Qf2 e1Q Bb5 e2 Ba4 Qg1 b5 e1R Kc5 Qgh2 Rf1 Ree8 Qe1 Reg8 Bdf6 Bf3 Bd8 Nc6 b8R Bg2 Nc4 Bh1 Nce5 Na5 Nd7 Bc6 Rc8 Rb2 Nb8 Ra2 Bdg5 Q3g2 Rf8 Qgh3 Na6 Rb8 Bd8 Rc8 Nb8
1R2N1q1/pBp5/RrP4b/qb3BN1/1Q1b1N1K/2n1RP1n/P1bb4/k2N3R b - - 0 2 legal: proof: d4 f5 g4 e5 dxe5 b6 gxf5 Kf7 c4 Nh6 c5 Be7 c6 Bf8 Be3 Ke8 Bc5 Ng8 h4 bxc5 Qd2 g5 Qa5 g4 Qa4 Na6 Qd1 Nh6 Na3 Rg8 Nb1 Rg5 hxg5 Ng8 Qd6 Rb8 Qd1 Bh6 Rh2 Ne7 Rh5 Kf7 Rh3 Qh8 Qd6 Bb7 Qd2 Rf8 Re3 Bc8 Rh3 Qf6 Ra3 Ke8 Rh3 Rh8 Qc2 Ng8 Rh1 Qd8 Qd1 Bf8 e4 Ke7 b4 h5 e6 d5 e5 g3 g6 h4 f3 d4 g7 g2 Kf2 c4 b5 c3 b6 h3 Kg3 h2 b7 d3 b8R c2 Rb5 c1B Rb8 d2 Rb5 Nb4 Rb6 Nd5 Nc3 Nh6 g8R Ng4 Nge2 g1B Qe1 d1B Ra6 Bfh6 Nf4 Bd2 Kh4 Bc2 Nd1 Nc3 Qe4 Bc5 Qb4 Nf2 Rb1 Qf8 Rb3 Nh3 Bd3 Qg7 Rba3 Bb7 Rb8 Qg8 Bb5 Nb1 Re3 Nc3 Rg1 h1Q Be2 Qh2 Rh1 Bc8 Bd3 Qe2 Be4 Qb5 f6+ Ke8 e7 Kf7 e8N Qa5 Bf5 Bd4 Ng7 Be6 Ne8 Bc4 Bc8 Bb5 Bb7 Ne4 Ne2 Ke6 f7 Kd5 f8N Nc3 e6 Bh7 e7 Bc2 Qd6+ Kc4 Nh7 Bb3 Ng5 Bc2 Qf4 Kb4 Qg4 Ka4 Nf4 Ka3 Nf2 Kb2 Nd1+ Ka1 Nd5 Bc5 Qb4 Bd4 Nf4 Bc4 Nf6 Bb5 e8B Qh7 Bd7 Rf8 Be6 Qg8 Bf5 Rc8 Ne8 Rd8 Ra8 Rb8 Bbc8 Rb7 Rb8 Rb6 Bb7
1R1R1r2/1B2pnR1/2KB1b2/1Q3BN1/1r2P1Bp/q5P1/n1NnqP2/1Rk2n1n b - - 0 1 illegal: No extended proof kernel
b4KB1/3r2PR/B1RB4/5NNN/q1PBQ2p/N3bq1n/kbp2q1P/6qr b - - 0 1 illegal: No proof kernel
1rR1K1R1/3N4/R2B1Qn1/2qbp1nb/Bbk1Rn2/5NNq/Pp1PP1b1/5N2 b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 g5 h4 a6 hxg5 Nh6 f4 Ng8 f5 Be6 g6 Ra7 g5 Bc8 b4 a5 g7 axb4 Rh5 Ra6 Rh1 Rg6 fxg6 Bd7 Qa4 Bg4 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 f5 d6 h5 d7 b3 Ke6 h4 Kf7 e5 Nf3 b4 Nd4 f4 Rh3 f3 Bb2 f2 Rh1 h3 Ba3 h2 Nc3 Nf6 g8N Nc6 g7 Nh5 g6 Ne7 Bg2 f1B Bc6 Bg2 Rf1 h1N Nf5 Bb7 Ne3 Qc8 d8N N1g3 Ba4 Qh3 Nf6 Ne4 Rc1 c6 Rf4 Ng5+ Ke8 Ba8 Qf1 b2 Nce4+ Kd4 Rh4 b1B Ng3+ Bbe4 Rc5 b3 Ra5 c5 Ra6 b2 Bb4 Bd5 Nd7 Rh6 g8R c4 Rh8 c3 g7 Rb6 Qf6 c2 Nef1 c1Q Rf4 Qc6 Ne6+ Kc4 Kd8 Ng6 Nd4 Bef3 Re4 Nhf4 Ba3 Bc5 Rf8 Bh5 g8R Bb4 Re8 Ba5 Bd6 Qc5 Ref8 Bb4 Re8 Nh4 Ke7 Rb5 Rc8 Nhg6+ Ke8 Rb8 Nf3+
n2Q3r/1N2p1R1/K3n2B/NrB2R2/q2P3r/4PR2/nnPRp2B/1q1Bb1k1 b - - 0 1 illegal: No proof kernel
1n3B2/2P3qb/2nBrN1n/pB2r3/PrQ4K/1rN2R2/2BpP1N1/1NR1n1k1 b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 g5 dxe5 Be7 h4 fxg4 Ba3 g3 Bb2 g4 Bc1 Bg5 hxg5 Kf8 Nf3 Ke7 Ng1 Ke8 f4 Kf7 a4 Kg6 c4 Kf5 e6 Ke4 c6 h5 e7 a5 e8N b5 f5 d5 g6 d4 c7 d3 c5 g2 Kf2 b4 Kg3 d2 c6 Ke3 g7 b3 f6 h4+ Kh2 Kf2 f7 b2 f8B h3 Qc2 Ra6 Na3 b1R Nd6 Rb4 Nb1 Qg5 Ra3 Bf5 c8B Nh6 g8N Bh7 c7 Qg7 Nb5 Re6 Nf3 g1N Nf6 Rb3 Bd6 Rhe8 Nh4 Re5 Qc6 R8e6 Bg2 Rb4 Be4 Kf1 Kg3 h2 Kf4 g3 Qc4 g2 N5c3 Kf2 Bg6 Nf3 Bc2 g1N Bd7 Nd4 Ng2 Ngf3 Bb5 Ne1 Rb3 Ndc6 Ba3 Bg8 Rg1 h1R Bf8 Rh3 Bd6 Nf3 Rc1 Bh7 Bf8 Ne1 Bd6 Kg1 Bf8 Ng8 Bd6 Qe7 Kg4 Rg3+ Kh4 Qg7 Nd1 Nh6 Rf3 Rgg5 Ndc3 Re3 Na2 Reb3 Nac3 Rge5 Be7 Rb2 Bf8 R4b3 Bad6 Rb4 Ba6 R2b3 Bb5
1rrr2RN/3b4/1p5N/b1BP3N/p3Q1Bn/NP1r1rn1/k2P3K/B3rR1B b - - 0 1 legal: proof: e4 d5 c4 g5 cxd5 f5 exf5 b6 h4 gxh4 a4 Be6 a5 Qc8 a6 Qb7 axb7 Bc8 g4 Kd7 f4 Kd6 Kf2 Kc5 Kg2 Kb4 f6 e5 f7 c5 g5 h5 g6 a5 f5 h3+ Kh2 a4 b3 h4 g7 c4 f6 e4 Be2 c3 Bg4 c2 Qe1 e3 Nf3 e2 Ra3 Nc6 b8B Nce7 Be5 Nf5 Nd4 Rb8 Rf1 Ng3 Nf5 Ne7 g8B Ng6 Bh7 Bd7 Ra1 Rg8 Bcb2 c1R Bed4 Rcc8 Nh6 Bd6 Bg1 Rgd8 f8N Be5 Na3 Bc3 Qb1 e1R f7 Re3 Bf2 Rd3 Ne6 Rf3 f8N Rd3 Kg1 h2+ Kg2 h1R Ng7 Rg1+ Kh2 h3 Nh5 Nh4 Be4 Rf3 Ng6 Rd3 Rc1 Re1 Nh8 Ree3 Rf1 Rf3 Qe1 Ng6 Kg1 h2+ Kg2 h1R Bc5+ Ka5 Rb1 Rg1+ Kh2 Nh4 Ba1 Bb4 Rf2 Rf1 Qe2 Re1 Rf1 Bc3 Bf2 Kb4 Rg1 Rf5 Bh1 Rff3 Bc5+ Ka5 Kh3 Ref1 Qe4 Ne2+ Kh2 Rd1 Bf5 Rc1 Rg5 Ng3 Nc2 Kb5 Bf2 Ba5 Bg4 Rd1 Rg8 Rf1 Nd4+ Kb4 Bg1 Ka3 Nb5+ Ka2 Bc5 Rd1 Na3 Rdf1 Re1 Rg1 Re2 Rc1 Rf2 Re1 Rf1
rb2RnB1/1N1qBKN1/3P3k/2Prp3/2r1R2p/B2Nn3/np5P/2Q1bB1N b - - 0 1 legal: proof: e4 a5 d4 d5 g4 c5 b4 f5 gxf5 Be6 dxc5 axb4 Qf3 d4 Qd1 Bd5 exd5 Ra5 Qd3 Ra6 Qd1 Ra8 Ke2 Kf7 Kd3 h5 Kc4 g5 a4 Kg7 f4 e5 c6 d3 f6+ Kh7 a5 h4 f5 g4 c7 g3 c8N g2 f7 d2 a6 b3 a7 b2 f6 b6 Ne2 g1B Nf4 Nc6 Nd6 Qe7 Nd3 Kg6 Nc3 b1N Nce4 Nb4 Nb7 Rh6 Nef2 Qe6 Ba3 Na2 Qc1 Bd6 f8B d1R f7 Nbc3 Be7 Nf6 f8N+ Kg7 Rb1 Qd7 Ne6+ Kh7 Ra1 Bb8 Ng7 b5+ Kc5 b4 d6 Ncd5 c4 b3 Rb1 Rg6 Rb2 Qd8 Re2 b2 Re4 Nd7+ Kc6 Ne3 c5 Nf5 Kd5 Rg4 Ke6 Ne3 Kf7 Rd2 Nh3 Bf2 Rg1 Be1 Nhf2 Nf8 Nh1 Kh6 Rg3 Bc7 Rg2 Qd7 Rf2 Rd8 a8B Bb8 Rf6+ Ng6 Re6 Rd1 Ndf2 Rd5 Nd3 Rc8 Rb4 Rc4 Ra4 Rc2 Re4 Rc4 Na5 Qa4 Kf6 Rc6 Bd8 Nf8 Re8 Rdd4 Be7 Ra6 Bd5 Qd7 Nb7 Ra8 Bg8 Rd5 Kf7
1kN2Kbq/R4pB1/1p5N/r1N1P3/2n1Bn1r/B3RP1p/P1r2Q1b/2n2NB1 b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 axb4 h4 g5 hxg5 Qd6 Rh3 Qd7 Rh1 Qd8 Bb2 Qd6 Bf6 Qd7 Bxe7 Qd8 g4 Kd7 d4 h5 Kd2 c5 Kd3 Kc7 Ke4 b3 Ke5 b2 e4 c4 f3 c3 d6+ Kc6 d7 Kc7 d5 c2 g6 c1R g5 h4 g7 h3 d6+ Kc6 g6 Nh6 Kf6 Nf5 g8N Rc4 g7 Ra7 e5 Rh5 Qe2 Rhh4 Nh6 Qb6 d8B Rc5 g8N Rd4 d7 Na6 Qf2 Nh4 Bd3 Rc2 Nd2 b1N Ba3 Ng2 Ne4 Nf4 Ne2 Nb4 Nc5 Ra5 Re1 Nd2 Rab1 Nc4 Ng3 Be7+ Kg7 Bg5 Bg6 Nbd3 Bf6 Kc7 d8B+ Kb8 Ne7 Bf5 Nc8 Nc1 Re3 Bd3 Bde7 Qd8 Be4 b6 Nf1 Bh4 Rb4 Bg3 Ra4 Bh2 Bf8 Qe8 Kg8 Qd8 Bg7 Qf6 Be7 Qh4 Kf8 Qf6 Ba8 Bh7 Bb7 Bg8 Be4 Rb5 Ra7 Ra5 Ng4 Qh6 Bh4 Qh8 Nh6 Rcd2 Qg1 Rc2 Bf2 Rd6 Qg3 Rg6 Qg2 Rg4 Bg1 Rh4 Qf2
K1R3r1/1pPP3b/1B1N2n1/2b1PN2/nrB4q/1k2nBpp/3R1N2/Q1B2Nb1 b - - 0 1 illegal: No proof kernel
n1k5/RR1Br1r1/2r3Rq/Nqp1Q2N/1NRBpNb1/2n1K1p1/2P1PP2/7b b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 c6 d5 Bg7 d6 Be5 h4 fxg4 hxg5 Bd4 Rh3 Bb6 Rh1 Bc7 dxc7 Bb7 Nc3 Ba6 Nb1 Bc8 Kd2 d5 b4 Kd7 b6 a5 b5 h5 g6 e5 g7 g3 b7 a4 b6 d4 Bb2 e4 Nc3 c5 Qb1 a3 Nd5 d3 Bd4 h4 Nb4 h3 Qb2 h2 Ke3 a2 Nh3 d2 Nf4 Ne7 g8N Na6 b8R d1R b7 Rh6 Bh3+ Re6 Bf5 Ra7 Bg6 Rc6 Bf7 Rd2 Rhb1 h1B Qc3 Qf8 Be8+ Kd6 Rd1 Qh6 Nf6 Bg4 c8R Nc7 Nh5 Na8 Rd8+ Kc7 Rd6 Ng6 Rdb1 Ne7 Rg6 Rd1 Rd8 Rd2 b8N Rb7 Rdd6 Kc8 Rb2 Ra7 Rd7 Rac7 Rd1 a1Q Ra2 Qc1 Ra7 Qb2 Rda1 Qb3 R1a4 Qc4 Rb7 Qb5 Raa7 Rd1 Rdd6 Ra1 Rd5 Raa6 Qa1 Re6 N8c6 Rd7 Na5 Rac6 Bc3 Re5 Rd4 Ree6 Rc4 Nd5+ Kd2 Rg7 Bd4 Nc3 Ke3 Ree7 Qf1 Rd6 Qh3 Bd7 Qe6 Rc6 Qe5 Bg4 Bd7+
RKRNnB2/R2B1PPp/5b1Q/N1rP3b/1B1n2p1/2qr4/nB2p3/q1R3k1 b - - 0 1 illegal: No proof kernel
Q2n4/1RbPr1p1/7P/rq1p1N2/B1nRNq2/3Pqp1b/K1B2B2/3RBkR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 a4 exf4 axb5 Bf5 c5 Qd6 cxd6 Bc8 e4 Kd7 h4 Ke6 b4 Ke5 h6 Kd4 e5 c5 e6 a5 d7 f5 h5 c4 b6 a4 b5 a3 h7 f3 e7 c3 e8B f4 b7 c2 Ne2+ Kd3 Ng3+ Kd4 Bd3 a2 Nc3 Ne7 Nce4 Ra7 Rg1 Nbc6 b8B Rg8 h8R Nf5 h6 Ra5 Ba7+ Bc5 Qe2 Ne3 Nf5+ Ke5 Ba3 Bb6 Rd1 c1Q Bb4 a1Q Bc2 Nc4 Qf1 Bc7 Bf2 Qcb2 Qd3 Qbb1 Qa3 Qc3 Qa4 Rf8 Qa2 Rf7 Rf8 Re7 Rf6 Bb6 Rfg6 Bc7 R6g4 Ra7 Qa6 Nd8 Qb7 Ra5 Qa8 Bb7 b6 Ba6 b7 Qa3 b8R Qe3+ Kf1 Qbb3 Rb7 Qa4 Bg6 Qb5 Bh4 f2 Ba4 Qa7 Ke2 f3+ Kd3 f1Q+ Kc3 Qe3+ Kc2 Qfe1 Kb1 Qg3 Ka2 Qgf4 Nfd6 Kd4 Nf5+ Kd3 Bc5 Ke2 Be1 Qc3 Bcf2 Qce3 Ned6 Qh2 Rd4 Qhf4 Rg4 Kf1 Ne4 Qb4 Bh7 Qb5 Rg1+ Ke2 Ra7 Qb7 Ned6 Na3 Nh4 Bd3 Bg6 Qb5 Rb7 Bf5 Bh7 Bg4 Bhc2 Nc4 d3 Be6 Ne4 Bh3 Rg3 Kf1 Nf5 Qd2 Rg2 Qde3 Rg1+
1b4kq/N1PN3R/1pp5/4PP1b/1Bn1p2R/nr2Q3/2qRBR1K/rB1n3B b - - 0 1 illegal: No proof kernel
Q1n3R1/P2rBNqR/K1n5/N1pkB3/4Npb1/3BpPb1/qrP2n2/4B1N1 b - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 g5 h4 d5 hxg5 Nh6 exd5 Ng8 b4 axb4 Ke2 Kd7 Kd3 Kd6 Kc4 e5 Kb5 f5 d4 c5 a4 f4 a5 e4 a6 b3 a7 b6 h6 e3 f3 b2 g6 Bg4 g7 Bf5 h7 Nc6 Bd2 Be7 Na3 b1N Nc4+ Kc7 Ka6 b5 Na5 Kd6 Be1 b4 Bd3 Bh4 Rh3 Nge7 g8N b3 Nf6 Rf8 h8B Bg3 Rh7 b2 Qd2 Qc7 Ne4+ Kd7 d6 Ke6 d7 Rad8 Bf6 Nc3 Be5 b1Q Qh2 Rb8 d8B Nc8 Be7 Rb2 Qh1 Qa2 d5+ Kd7 d6 Ke6 d7 Rf7 d8N+ Kd5 Qh6 Nd1 Qf8 Bg4 Qe8 Nf2 Rc1 Rf6 Nf7 Rd6 Qd8 Rd7 Ra1 Nb6 Qa8 Nc8 Rb1 Qd6 Rc1 Qh6 Rd1 Qg7 Rd2 Nh1 Rdh2 Nf2 R2h5 Qg6 Rg5 Qf6 Rg8 Qg5 Rh5 Qg7 Rh7
1q3k2/Pp1n4/B1N3Rr/1pPNq2p/nBR2rRB/5B1P/n2Q1b2/R3bK2 b - - 0 1 legal: proof: b4 e5 d4 c5 dxc5 d5 b5 f5 f3 e4 fxe4 f4 g4 Bf5 b6 axb6 gxf5 g5 a4 h5 c4 f3 c6 g4 a5 d4 e5 d3 e4 g3 e6 g2 h3 Rh7 e7 Nf6 a6 Qd6 a7 Qb4+ Qd2 Nd5 e5 Qb3 f6 Nc7 Nc3 Qb1 Nd5 Nd7 Ne2 g1B Nd4 Na6 c7 Qb4 Nc6 Qb2 c8R+ Kf7 e8R Rh6 Rh2 Bb4 Rg2 Nac5 Re6 Na4 Rg4 Be3 Rc7 Kf8 f7 Qc3 Be2 f2+ Kf1 Bec5 Rd6 Ba5 e6 Qe5 Bf3 Rc8 Qe2 Be1 Bg5 d2 Bh4 d1N Qd2 Rb8 Bg5 Ndc3 e7+ Kg7 e8B Na2 Rc8 Kf8 Bh4 Be3 Rd8 Rc8 Rdg6 Rc7 Rc8 Bc5 Nd4 Rc6 Rc7 Rf6 Nc6 Rf4 Ncb4 Nb8 Bb5 Nd7 Ba6 b5 Nf6 Ke7 f8B+ Kf7 Be7 Bd4 Nfd5 Ke8 Bef6 Kf8 Rc5 Be3 Nc6 Qb8 Bc3 Qe5 Ke2 Qb8 Bb4 f1Q+ Kd1 Qh1 Ke2 Qh2+ Kf1 B3f2 Nd8 Rf6 Rc7+ Qd6 Nc6 Rf4 c5 Nf6 Re7 Nd7 Re4 Qe5 Rc4
6Qb/2nR3b/1p2R1Rr/n3N2P/pr1B1k1K/1P2Rq2/BpBBP3/2n1N2n b - - 0 1 illegal: No proof kernel
2N3nq/pN1r1r1B/R2B2P1/R2P2p1/PQ4nk/1Rn1p3/B2Rb1b1/2KB3n b - - 0 1 illegal: No extended proof kernel
B3B1n1/K2bqRqp/2Pk1p1r/N1Pq2Q1/B2pbR2/NRbP4/3n4/2R1B3 b - - 0 1 legal: proof: f4 c5 h4 e5 b4 g5 hxg5 exf4 a3 a5 bxc5 b5 a4 b4 Ra3 Ra6 Ra2 Rb6 Ra1 Rb5 axb5 Qb6 Rh3 Qc7 Rh1 Qd8 Kf2 Ke7 g4 d5 e4 f3 Ke3 f6 Kd4 f2 g6 b3 d3 a4 c6 a3 Kc5 d4 b6 b2 g5 a2 g7 Bf5 b7 Qe8 Kb6 Be6 g6 Qf7 Qd2 Qe8 Nf3 Bd5 Rh4 Qd7 Bg2 f1B Ka7 Kd6 Qg5 Be2 Nfd2 Qh3 Rf4 Qe3 Nc4+ Kc5 Bd2 Na6 b8R Bg4 Nba3 b1Q Be1 Qb3 Na5 Bd7 Rc1 a1Q c3 Qc4 Rb3 Kd6 Bf3 Nc5 Bd1 Nh6 g8B Qe2 Bf7 Rg8 g7 Qaa2 Bg6 Qb4 Bh5 Qg2 Bhf3 Qg4 Rbb1 Be7 Ba4 Nb3 Bh1 Nd2 Rb3 Rb8 g8R Rb5 Rf8 Ng8 Rf7 Bd8 Qf5 Qg7 Bf3 B5e6 Qg6 Rh5 Qg5 Rh6 e5+ Kc7 c4 Bf5 e6 Ne4 e7 Bde6 e8B+ Qe7 Bh4 Qg2 Be1 Nd2 Bg4 Qd5 Nb7 Be4 Bf5 Kc8 Bh3 Ba5 Bg4 Kc7 Bf5 Bb4 Na5 Bc8 Bh3 Bc3 Bg4 Ba6 Bc8 Kd6+ Bb7 Bb5 Kb6 Ba6 Ba8 Bb7 Ka7 Bc8+ Rb7 Bd7 Rb5 Qde6 Rb3 Qd5 c5+
n1rQR3/rN1B2Bq/p3nrBk/P2p4/1Rbp2R1/n3P1R1/2PBN2K/3q4 b - - 0 1 legal: proof: g4 c5 d4 f5 b4 e5 bxc5 exd4 gxf5 g5 h4 g4 Ba3 Be7 Bc1 Bg5 hxg5 Kf8 Rh3 Ke7 Rh1 Ke8 a4 Kf7 f4 Kg7 Kf2 b5 Kg3 h5 g6 h4+ Kh2 d6 e3 b4 f6+ Kh6 a5 h3 f7 b3 f8B+ Kh5 g7 b2 c6 Ba6 f5 Nd7 c7 Qh4 c8B Kh6 f6 Bc4 f7 Nc5 Nd2 b1N Nb3 Ne6 Bd2 Nf6 Ne2 Nd7 Ra4 Na3 Rg1 Nb6 Bd7 Qh5 Be7 Rhc8 g8R Qg6 f8R Qh7 Bf6 g3+ Kh1 h2 Rb4 Rc7 Rg7 Rac8 Re8 Na8 Nc5 Rb7 Kg2 h1R Rg4 Rh5 Bh8 Rf5 Kh1 g2+ Kh2 Rbc7 Nb7 Rf6 Qe1 d5 Qf2 Rg6 Qf6 a6 Qd8 Rf6 Nc1 Ba2 Bd3 Bb3 Ne2 Bc4 Nd6 Rb7 Bg6 Ra7 Nb7 Qg7 Rf1 Qh7 Rf3 g1Q+ Kh3 Qe1 Kh2 Qc1 Rfg3 Qd1 Bg7+
1B1rBn2/2PP2kp/B1nrnRq1/3n2r1/2pp2b1/N1R1R2R/N1P2B2/5Q1K b - - 0 1 illegal: No proof kernel
3q1NB1/PqPrRN2/p3r1R1/2r1B3/BRbbp3/1B1nP1Kp/8/kQ1r2R1 b - - 0 1 illegal: No proof kernel
2R3r1/p1P1rNQ1/2PRB1q1/3pR2N/1pk1n3/5rbB/P1R1rn2/1q1BB1K1 b - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 Qf6 h3 Qd8 Kd2 g5 Ba3 g3 Bg2 g4 Bf3 b6 Ke1 Bb7 Bg2 Bf3 Bf1 g2 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 c4 Ke7 e4 Ke6 f4 h5 f5+ Kf7 g5 d5 g6+ Ke7 f6+ Ke6 f7 h4 g7 b5 Nc3 b4 Nce2 h3 Qd4 h2 Bd2 Nc6 Nf3 g1Q Nf4+ Ke7 e6 g2 e5 Rh7 Ng5 Na5 Rc1 Qb6 Rc2 Nf6 g8B Bh6 f8R Ne8 Qb2 Kd8 e7+ Kd7 e6+ Kc6 Qa1 Nd6 e8R Rd8 e7 Nab7 Rf5 Rd7 Rc8+ Rc7 Qh8 Ne4 Re5 Rf7 Ke2 Rf8 Bf7 Rg8 Qg7 Qa6 Kf3 Qb6 Be2 Qb1 Be1 g1R Bd1 Rf1+ Kg2 Rf3 Rg1 h1R Nh5 Rg3+ Kf1 Rh2 Rgg2 Rgh3 Kg1 Rf3 Rg4 Rd2 Rf4 Nf2 Rf6+ Nd6 e8B+ Kb7 Bc6+ Ka6 Bd7 Nde4 Bh3 Re7 Rfc6 Ka5 Rf6 Qc6 Rfe6 Qe8 Rd6 Re2 Bfe6 Qf7 c6 Ka6 c5 Kb5 c7 Qg6 Rd2 Kc4 c6 Rgf8 Bhg4 Rg8 Nf7 Bf4 Rb2 Bg3 Bh3 Qf6 Rd2 Qg6 Rc2+
r2R1kr1/p1qR4/rB3PR1/2B4b/P1Kpp3/q1nPqr2/Q1N3B1/1N1RB3 b - - 0 1 illegal: No possible last move
bk1Q1r1N/R3pq2/2BRR1p1/B4n2/2rB1Bq1/K2pr3/1PNPP1R1/4q2q b - - 0 1 illegal: No proof kernel forced: bxDB
n3b2R/p3pB1B/2R1qP2/PK1BP2R/Rb2N1bp/3k4/b2qN3/n3qQB1 b - - 0 1 legal: proof: d4 c5 c4 f5 g4 fxg4 b4 Nh6 bxc5 Ng8 c6 Kf7 c7 Ke8 c5 b5 h3 Nc6 h4 Rb8 d5 Rb6 Nc3 Nb8 Nb1 Rc6 dxc6 Ba6 Bg2 Bb7 Bf1 Bc8 Bf4 h5 Qd4 g5 Qd1 g3 Be3 g4 Bc1 Rh6 Be3 Rg6 Bc1 Rg5 hxg5 Bh6 Qc2 Bg7 Qd1 Bf8 Kd2 Kf7 Kc3 Kg6 Kb4 Kf5 a4 Ke4 f4 d5 g6 d4 a5 h4 f5 d3 g7 g2 f6 d2 e3 g3 Rh3 Bd7 c8R Be8 c7 Nd7 c6 Nh6 g8R Nb6 Bc4 Na8 Bf7 Ng4 Rg5 Bh6 Nc3+ Kd3 e4 Ne3 Nge2 g1Q e5 g2 Rh5 Qe1 Ne4 g1Q Ra4 Qg8 Kc5 b4 Kb5 b3 Ba3 b2 Bc5 Qeg1 Qf1 d1B Rb8 b1B c8B Qd6 Bf5 Ba2 Bh7 Q1g3 Bd4 Nc2 Bg1 Bd2 Rc8 Bb4 Bd5 Bf7 c7 Na1 Rh2 Q8g5 Rh8 Qe1 c8B Qgd2 Bce6 Bg6 Rg2 Bf7 Rgg8 Bg6 Rc8 Be8+ Rc6 Qd7 Bf7 Qe6 N2g3+ Be2 Qh3 Bg4 Ne2+ Qg3 Qg2 Qge1 Qf1
K1R4b/6N1/3bB2B/nRp1pR1P/1NRrp1Pp/3N3q/rkPn1N2/4r1Q1 b - - 0 1 illegal: No proof kernel
b5qR/pN1NP3/n2pk1r1/r2P2p1/R1N2B2/BQ1n1KB1/2p3PN/1Bn4r b - - 0 2 legal: proof: b4 e5 h4 b5 a4 g6 axb5 Nf6 f4 exf4 c4 Ne4 b6 Bh6 b5 Bg7 b7 Bc3 b6 Qg5 h5 Bg7 h6 Nf6 hxg7 Qb5 cxb5 Ng8 Kf2 Ke7 d4 c5 e4 h5 e5 f5 e6 f3 Ra5 h4 Rh3 f4 Qd3 c4 Ra6 c3 Qe4 Nf6 Qd5 Rh5 Qb3 Nd5 Ra4 Nb4 Nd2 N8a6 b8N Bb7 g8N+ Kd6 e7 c2 Nc4+ Ke6 Nh6 Re5 Bb2 g5 Ba3 Rc5 Rh1 h3 Nf5 h2 Nfd6 Na2 Bd3 Nc1 Be2 Bc6 b7 Rd5 b6 Ra5 Kf1 f2 Nf3 Bd5 Bd3 Bc6 Bg6 Nd3 Ke2 f1N Bh7 Nd2 Bg8+ Kf6 Ra1 h1R Nh2 f3+ Ke3 f2 Bf7 Ne4 Kf3 Bd5 Re1 Nec5+ Re4 Be6 Rh4 Nc1 Rh8 N5d3 Nc6 Rd1 b8B Rh1 b7 Bf5 Bc7 Rg8 b8B Rg6 Nb7 Be6 Bf4 f1Q+ Ke4 Qe1+ Kf3 Qh4 Bbd6 Qh7 Nb8 Qg8 Bg3 Bf5 Bdf4 d6 Bd5 Bd7 Bf7 Bb5 Nd7+ Kf5 Bd5 Bc6 Nd2 Rg1 Qb2 Rg7 Nbc5 Ba8 Nb7 Qh7 Ba2 Qg8 Nc4 Ke6 Qb3 Rg6 Bb1 Rh1 d5+
1B1R2Nr/n2pnNB1/5BN1/q3pr1b/N4Bn1/1Q2P3/1p1PKpP1/2r2Rk1 b - - 1 2 illegal: No possible last move, all moves rejected
1B2NN1K/3q3p/1pN1rp1P/RR1q1Pk1/1bn1B3/1P4R1/1q2pQ1r/2nRN3 b - - 0 3 legal: proof: a4 b6 a5 d6 axb6 cxb6 e4 d5 exd5 f6 g4 Bf5 g5 Be6 g6 Bf7 gxf7+ Kd7 Ke2 g5 Kf3 e5 Kg4 Ke7 Kh5 a5 c4 g4 f4 e4 d4 e3 h4 e2 f5 a4 b3 g3 c5 a3 c6 a2 c7 g2 c8R Ra7 d6+ Kd7 d5 Qe8 Rc3 Ne7 Na3 Ng8 Nb5 Nc6 Qe1 Qe4 Bf4 Be7 f8N+ Ke8 d7+ Kf7 d8R Nb4 d6 Nh6 d7 Nd3 Nf3 g1Q Bg2 Qd5 Nc7 Kg7 Qf2 Nf7 Ne1 Nd6 Be4 Nc1 Re3 Rg8 Ne8+ Kf7 Kh6 Nc4 h5 Bb4 Bb8 Rg2 Rhh3 Rh2 Rhg3 Rc7 Rd3 Rc6 Rd1 Re6 Rc8 Qh1 Rc5 Qf3 Rb5 Qfd3 Rb1 a1Q d8N+ Ke7 Kg7 Qb2 h6 Qd7 Ra1 Q3d5 Nc7 Kd6+ Kh8 Ke5 Ra3 Qd6 Raa5 Qd7 Qd4+ Kf4 Nc6 Qf7 Ne8+ Qc7 Rgd3 Kg5 Qf2 Qcd7 Rg3+
3K4/r2B2NR/2B2pnp/RP1n2BP/1Rprp1R1/4bN1Q/q5nP/3q1Bk1 b - - 0 1 illegal: No proof kernel
B1r1RB2/nBPNp1p1/k3Q1p1/2bn2P1/N2qp1qR/P3nr1N/B3K1N1/8 b - - 0 1 illegal: Other
Q1Nk2B1/2Bp2K1/R2P2n1/rP2BRq1/rP1b1N2/3p2Np/1q3Np1/2B2br1 b - - 0 1 illegal: No proof kernel
1B2R2N/1n1nbPbN/2K1Bpp1/7p/2QPR3/2p2b1r/2BRrk1P/2R2Bb1 b - - 0 1 legal: proof: f4 b5 g4 e5 fxe5 d5 a4 f6 axb5 Qd6 c4 dxc4 g5 Qd7 g6 Qf7 gxf7+ Kd7 Kf2 Ke6 Ke3 Kf5 Kd4 Kg4 Kd5 h5 e4+ Kf4 b4 a5 e6 c5 e7 a4 e8B a3 b6 a2 b7 c3 e5 c2 d4+ Kf5 e6 c4 e7 c3 b5 Ra7 b6 Ra6 Bf4 c1B Na3 Nd7 b8R Ra7 b7 Rh7 Qd3+ Kg4 Nf3 Nh6 Kc6 Nf5 Qc4 Be3 Rd1 a1B Rd2 Nd6 Ng5 Bg1 Bg3 Rh6 Nh7 Kf3 Ra8 Bb2 b8R Nb7 Bf4 Ndc5 Bd7 Rg6 e8B Rg3 Be6 Rh3 Bc7 Ra4 Ra5 Nd7 Re5 Be7 Re4 Bc1 Bg3 Rb4 Ra8 Rb2 Bb8 Nb6 B8d7 Ra2 Bf5 Rb2 Bde6 Nd7 Nc2 Ra2 Ne3 Rc2 Ng4 Rb2 Rd1 Bh6 Ne5+ Kf2 Ng6 Re2 Nh8 g6 Rd2 Bhf8 Rg4 Bh6 Bc2 Bg7 Re4 Nb6 Bd5 Bg4 Be6 Nd7 Be5 Ke1 Re8 Bf3 Bb8 Be3 Rg1 Bf2 Rg5 Bg1 Ra5 Kf2 Ra1 Nf8 Rb1 Nd7 Rc1
n2B3R/2B5/P1p1p1pp/Kb1rRNPr/5q2/2N1P1pn/2R3N1/2N1RrkQ b - - 1 2 illegal: No possible last move
B1R2r2/BB1B3q/4Qppn/KP2r3/N4PP1/1b2RRR1/1q1k3b/N2n1nqr b - - 0 1 illegal: No proof kernel
7b/2r1N2n/RQB2Rnp/Nnp4q/b2rP1RP/4r1R1/1KPB1B2/3kBqb1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 g4 fxg4 axb5 Bd6 Ra3 Bc5 Ra1 Bf8 Kd2 Kf7 Kc3 Ke6 b4 Kf5 f4 Ke4 h4 c5 f5 a5 b6 d5 e3 g5 f6 g3 e6 h6 e7 d4+ Kb2 g4 e8R+ Ne7 f7 g2 b5 a4 b7 a3+ Ka2 d3 b6 d2 Rh3 g3 Bb2 Bd7 Bc3 Nc6 b8B Nd4 b7 Rh7 Ne2 Kf3 e4 g1B Bf4 Bg7 b8B Nb5 f8R Bh8 Rf6 Ng6 Rg8 Qe8 Nc1+ Kf2 Be2 g2 Rg3 Rg7 Kb3 a2 Kb2 Ra3 Nb3 Re7 Qc1 d1R Na5 Rd4 Bb4 Rad3 Nc3 Re3 Qb1 Bc6 Bc4 Rc7 Bd5 Qe5 Rg7 Qh5 Rg4 Be8 Bc6 Kf3 Nd5 Ke2 Bd2 Bd7 Bg3 Be8 Bc1 Kd1 Be1 Na3 Bb7 Ba4 Bc6 Nb5 Rg8 Bh2 Rg3 g1N Ne7 Nh3 Bf2 Ng5 Bd2+ Ke2 Rg7 Bg1 Bfe1 Nh7 Rg4 Ra7 Bbg3 Rb7 Bgf2 Rc7 Kc1 Na3 Qb6 Nb5 Rb1 a1Q Rg8 Qa2 Ra1 Qf7 Kb2 Qf8 Ra2 Kd1 Ra3 Qf7 Ra8 Qc4 Ra6 Qf1 Rc3 Re2 Rh3 Re3 Rhg3
1BQN2N1/Br1B2pn/6PR/p1nq1r2/1Rn1b1KN/P7/Pb1n1rn1/3NBk2 b - - 0 1 illegal: No proof kernel
2bn1rn1/b1N2p1B/q1kpn1R1/2N1rR1r/RQ1P4/1N3Pr1/P3N1R1/1K2B1r1 b - - 0 1 illegal: No proof kernel
b1N5/p1nb4/1R2nqRB/2pNR1qB/b3r3/PrRN1QP1/N1P3K1/1b2k1b1 b - - 0 1 illegal: No proof kernel
Rb5b/4p2B/Brp3RB/qBPPrNq1/1kQNP1qN/8/1b1n1Kn1/6Nb b - - 0 1 illegal: No proof kernel
KR2N2r/nr1R2Q1/1p1N1p2/2Nq1P1r/P5nB/b1Nr1b1n/BPq1k3/R5R1 b - - 0 1 illegal: No proof kernel
BQB4K/2rq2PN/pN5r/N1p1k3/N1P2B2/1Brp1rR1/P1nRb1bn/2b5 b - - 0 1 illegal: No proof kernel
r3Nn1k/b3p1pq/2KPB1Np/2B5/NrnBpBP1/5QRP/2b3Nb/Rr6 b - - 0 1 illegal: No proof kernel forced: wxDB
2r3rN/p1p1bb1R/4nRp1/1BP3P1/2q1NQ1n/Nkn3R1/R1pNP2q/5KB1 b - - 0 1 illegal: No proof kernel
1b2Nnnq/1N4p1/1rpp3k/1qR5/B3R1R1/Bb1r2Pp/P4K1P/1r2RNQN b - - 0 1 illegal: No proof kernel
2r1QBB1/4pb1B/NpP4R/1r1n2qq/KNn1P1B1/NPkpq3/6p1/3Nb1R1 b - - 0 1 illegal: No proof kernel
b2qqkRn/3ppN2/p3pR1n/NBP1KNR1/1b2P2R/5QN1/rB1P2r1/2b5 b - - 0 1 illegal: No proof kernel
1nqRr2B/p1pRb3/1n1p1bk1/1R1PpB1n/8/KNr2NNq/P2QP3/R5N1 b - - 1 3 legal: proof: g4 b5 f4 g5 fxg5 Bg7 c4 bxc4 g6 Bb7 h3 Bf3 g5 Bg4 hxg4 Bf8 b4 h5 d4 f5 Kd2 c3+ Kc2 f4 Kb3 e6 g7 Kf7 b5 c2 g6+ Kf6 g5+ Kf5 d5 d6 b6 f3 b7 h4 Bh3+ Ke5 Nd2 f2 Bf5 f1N Bb2+ Kf4 Ndf3 c1B Qd2+ Ne3 Ka3 Nf6 g8R h3 g7 h2 g6 Rh3 Rb1 Nc6 b8N Be7 Na6 Nh5 Nc5 Qc8 Rd8 Nb8 g8N Rg3 g7 Rh3 Nh4 Kg5 Nf6 Kh6 g8R Rf3 Rg5 Nc4+ Kb4 Rg3 Nhf3 Nb6 Nfe4 Rh3 Ba1 Bb2 Nb3 Bbf6 Ka3 Rg3 Ne1 Rc3 Ng3 Bd4 Nef3 Bdf6 Bg4 Kh7 Rd7 Kh6 Rg8+ Kh7 Rgd8 Kg7 Nh3 Kg6 Rhf1 h1Q Nhg1 Qh3 Rfc1 Rd3 Rc5 Rc3 Rb5 Re3 Bd4 Rc3 Be5 Bg5 Bg7 e5 Bh8 Bgf6 Ra1 Qa6+ Ra5 Nc6 Re8 Rd8 Rf8 Qc8 Rb5 Nb8 Rf7 Re8 Rd8 Bf8 Rfd7 B8e7 Bf5+
1rk2K1B/Q6Q/1P2rnP1/1q2Rn2/2b2QPN/rQ1nnb2/R2B2Q1/1B6 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 f5 hxg5 d5 e4 b5 exf5 b4 c4 b3 cxd5 Bg7 Nc3 Bxc3 a3 Bb4 axb4 Qd7 b5 Qd8 Ke2 Kd7 Kf3 c5 Kg4 e5 Kh5 c4 f4 h6 Kg6 h5 Kg7 b2 d4 b1B g4 e4 a6 c3 g6 e3 a7 c2 d6 e2 b6 e1R f6 h4 f5 h3 d5 h2 f7 Ne7 f8Q Rh5 f6 Qc7 f7 Qc6 Ra2 Rh3 Nf3 Ba6 Nh4 Be2 Qg8 Ba6 f8Q Re4 Bd2 c1N Qf4 Qc5 Bd3 Qc6 Qh7 Nf5+ Kf8+ Kc8 Re1 h1N Qb3 Re6 Re5 Nhg3 Bc2 Nd3 d7+ Kb7 d8B+ Kc8 d6 Nf1 Be7 N1e3 Bf6 Bc4 Bh8 Qb5 d7+ Kb7 d8Q+ Nd7+ Kf7 Nf6 Qd5+ Kc8 Qg2 Rb8 a8Q Rg3 Qa7 Rf3 Bd1 Bc2 Be2 Bd1 Kf8 Rg3 Bf3 Rh3 Be4 Bf3 Rb2 Rh1 Ra2 Ra1 Rb2 Ra3 Ra2 Nf2 Bc2 Nd3 Bb1
5N1k/3rp1N1/2P2PBn/3pbB2/1nP1n2r/KQ2B2R/2Q1Q2Q/3Qqb2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 dxc5 f5 exf5 Qc7 a4 Qb6 axb5 Qd8 gxh5 g5 f4 a5 b4 a4 f6 a3 f5 Ra5 Ra2 Ra8 Rb2 a2 Rb3 a1Q Rf3 Qa6 Rf4 Qaa5 bxa5 gxf4 Kd2 Kf7 Kc3 f3 Kb4 d6 h4 f2 c4 Nd7 a6 Qb6 a7 Qd8 b6 Bh6 b7 Nf8 b8Q Ne6 Rh3 Bg5 h6 Qe8 h5 Bd2+ Ka3 Be3 h7 Nc7 h6 Bd2 Nf3 Na6 Qbb3 Kf8 f7 Qc6 Nh4 Qd7 Nc3 Nb4 Ne2 Qe6 Nd4 Qg6 Bd3 Bc3 Be3 Rb8 a8B f1N Bae4 d5 c6 Nf6 Qe2 Rg8 h8Q Qg3 h7 Qe1 Qec2 Ng4 Qe5 Be6 h8Q Ng3 Qh5 Nh6 Qhd1 Rd8 Qde2 Nh1 Q5h2 Kg7 Ng6 Nf2 Nf8 Kh8 f6 Rg5 Nf5 Rh5 Ng7 Rh4 Bg6 Rd7 Bdf5 Be5 Qed1 Ne4 Qhe2 Bd6 Nh7 Be5 f8Q+ Ng8 Qf7 Nh6 Nf8 Rd8 Bh7 Rd7 Bfg6 Bg4 Qh2 Bh5 Qe6 Be2 Qg4 Bf1 Qge2 Rb7 Bf5 Rd7 Bhg6
1N5n/r4N1B/1QKp4/Q1P1R3/P1p1B1q1/BQ2k1pP/4Bn2/1r2Bbn1 b - - 0 1 legal: proof: e4 c5 b4 h5 g4 a5 gxh5 f5 exf5 b5 bxa5 Nh6 d4 Ng8 dxc5 Ba6 Nh3 Bb7 Ng1 Bc8 f4 e5 c4 e4 a4 Qe7 c6 Qg5 c5 Bd6 Ra3 Qe7 Rc3 Be5 fxe5 Qd8 Rc4 bxc4 Kd2 Kf7 Ke3 g5 Kd4 e3 Kd5 e2 h3 e1N f6 d6 a6 g4 e6+ Kf8 a7 g3 c7 Nd3 h6 Rh7 e7+ Kf7 e8B+ Kf8 f7 Ke7 Nc3 Kf6 f8Q+ Rf7 h7 Kf5 h8B Rf6 Qb3 Bd7 c8B Nb2 Bb7 Qc7 Be2 Nc6 Na2 Bc8 Nb4 Nd4 Nc6 Qd7 Nb8 Nh6 Nf3 Nd1 Ba3 Kf4 Ng5 Nf2 Bg6 Nf3 Qd8 Ng1 Nf7 Qg4 Kc6 Bf5 Qdb6 Bd3 Bh7 Ke3 Bg7 Rf5 Bc3 Rd5 Be1 Rd4 Ng5 Nf7 Rh2 Nh8 Nf7 Nd1 Rf2 Rd5 Rf5 Nf2 Kb5 Re5 Be4 Re7 Re5 Rb7 Nd7 Rab8 a8Q Ra7 Kc6 Rbb7 Qad8 Rb8 Qa5 Rb5 Qdb6 Rb4 Qc2 Rb2 Nb8 Rb1 B2f3 Bf1 Be2 Rb5 Qd1 Rb1 Qdb3+
BBQ2B1r/1P1B1Rr1/P1pbn2N/1n3bp1/r5k1/1Q2R1p1/3P4/4BKR1 b - - 0 1 legal: proof: b4 b5 f4 e5 fxe5 f5 a4 a5 bxa5 d5 axb5 f4 c4 h6 cxd5 Bb7 g4 Qd7 Nc3 Qf5 gxf5 Bc8 Ne4 h5 Nf2 Rh7 Ng4 hxg4 Bb2 Rh5 Bc1 Rh8 e4 Kd7 h4 g3 f6 f3 a6 g6 h5 Bd6 f7 Bb7 f8B Bc5 b6 Be7 d6 Ke6 h6 Ra7 d7 Ra8 d8B Bd5 h7 Bb4 Bg2 f2+ Kf1 Bd6 Nf3 Nc6 Ng5+ Kd7 e6+ Kc8 e7 Kd7 e8B+ Kc8 e5 Be4 e6 Nge7 Rg1 Na7 Qb3 Rg8 h8Q Rb8 Nh7 Rg7 Ba3 Nf5 e7 Nb5 Nf6 Nfd4 Ng8 Bc2 Ba8 Ne6 Bec6 Be4 e8R Bf5 Bc5 g5 Rc1 Ned4 Re3 Ne6 Be8 c6 Bc7 Be7 Be5 Bd6 b7+ Kc7 Bd7 Kd8 Kg2 f1R Rce1 Rf3 Ref1 Rf4 Rf2 Ra4 Kf1 Bb1 Rf7 Bf5 Rf3 Rc8 Bf2 Kc7 Be1 Re8 Nf6 Kd8 Re3 Kc7 Be7 Rd8 Qh3 Rh8 Ng8 Nc5 Qh1 Bh7 Bf5 Bg6 Be4 Kd7 Bf8+ Be7 Bb8 Bh7 Qd3+ Ke6 Qh4 Bd6 Qb3+ Ke5 Qh3 Bg6 Bf5+ Kf4 Qh6 Bh7 Qhe6 Bg6 Qc8 Bh7 Be6+ Bf5 Bd7 Ne6 Qd5 Kg4 Qd3 Nec7 Qb3 Ne6 Nh6+
2b2rQ1/qNb1B3/2bNq3/Q1QNQ1PQ/6r1/R1nKP1n1/k1B3nP/5r2 b - - 0 1 illegal: No possible last move, all moves rejected
R1K3b1/1PQQ3Q/2rQ1nn1/1k6/2R1N1Bb/B1P2Pqb/Q4q1r/nR3r2 b - - 0 1 legal: proof: d4 f5 a4 b5 axb5 c5 dxc5 g5 Ra3 f4 Ra1 f3 exf3 g4 fxg4 h5 f3 Nf6 g5 Ng8 g6 Qb6 Bg5 Qc7 Bc1 Qd8 g4 Qc7 g5 Ba6 Nd2 Qc8 Nc4 Qd8 Ne3 Bc8 Ng4 hxg4 Kd2 a5 Kd3 d5 Kd4 Kd7 Ke5 d4 b4 e6 h4 g3 g7 g2 h5 a4 b6 Kc6 b5+ Kd7 g6 a3 b7 a2 h6 d3 b6 Kc6 h7 d2 c3 Qd7 Nh3 g1R Rb1 a1N Ba3 Be7 Nf2 Qd3 Ne4 Bh4 Bh3 Nf6 g8Q Qf1 g7 Ra6 Bg4 Qf2 Qe8+ Bd7 g8Q Rf1 Qc2 d1B Qa2 Bc2 Qgf8 Bb3 Qd6+ Kb5 c6 Bc8 c7+ Bd7 c8Q Nc6+ Kf4 Ne7 Ke5 Rf8 b8Q Rh8 b7 Rc6 Qcc7 Bc8 Qf7 Bd7 Qbe8 Qg3+ Kd4 Ng6 Qfe7 Bc8 Q8d7 e5+ Kd3 Rg8 h8R Rg7 Rh2 Rh7 Rd2 Rh5 Qh7 Rh6 Ke3 Rh5 Rd4 Rh6 Ng5 e4 Rc4 Rh5 Kd4 e3 Ne4 e2 Rf8 e1Q Re8 Bg5 Rh8 Rh2 Rf8 Bh4 Rg8 Ne8 Kd5 Qef2 Ke6 Nf6 Re8 Nh8 Ke7 Ng6+ Kd8 Qgg1 Qdf7 Qgg3 Rf8 Be6 Qfd7 Bf5 Kc8 Be6 Bh5 Bh3 Bg4 Qc5 Kb8 Qb4 Rd4 Bg8 Rc4 Qb3 Ka7 Qb2 Ra8 Bg2 Kb8 Bh3 Rc1 Qd2 Kc8 Qdf2 Rb1+
Bn1K3R/rQ5n/P2bQNPP/6rN/Q4b2/NnQ1R1Qq/3b4/3kn1n1 b - - 0 1 legal: proof: c4 g5 d4 a5 f4 d5 fxg5 Kd7 cxd5 a4 e4 a3 d6 Kc6 d7 Kd6 bxa3 Nh6 a4 Ng8 a5 Kc6 g4 Kd6 g6 Ke6 d5+ Ke5 d6 b6 g7 h6 g5 Bb7 g6 Bd5 exd5 Kf6 Bg5+ hxg5 Kd2 Ke5 Kd3 Kf4 Kc4 Ke3 Kb5 e5 h4 c5 a4 f5 a6 c4 h5 g4 a7 e4 a5 c3 a6 c2 Ra5 c1B Nf3 f4 Nfd2 f3 Ra1 g3 Bg2 f2 Na3 f1N Qa4 Qh4 d8Q Ke2 d7 e3 d6 Qh3 Qc7 Nf6 g8Q Nh7 d8N Nh2 d7 Bd6 Ne6 Nf3 d8Q Ne1 Ne4 Bd2 Qdc8 Bc1 Qb4 Kd1 Ng7 e2 Qge6 Re8 Ra2 Bcf4 Nf6 Re7 Bf3 g2 Qbc3 g1N Q8b7 Re8 Rb2 Rc8 Rb3 Rf8 Q7c4 Rc8 Qa4 Rc5+ Kb4 b5 Ka5 b4+ Kb6 Rg5 Qbc7 Bg3 Kb7 Bgf4 Kc8 Qh4 Kd8 Qh3 Rb2+ b3 h6 Qf1 Ngh5 Qh3 Rc2 b2 Bc6 Qe3 Rh3 b1N Bb7 Qd3 Re3 Nd2 Bh1 Nb3 Qb7 Nc1 Qf3 Qf5 Qg3 Qh3 Rb2+ Nc2 Rb7 e1B Rc7 Nb3 Rc8 Bd2 Bg2 Nd7 Bh1 Ne1 Be4 Rb8 a8Q Rb7 Qb8 Rc7 Ba8 Ra7 Qb7 Nb8 Rc7 Nf8 Rg7 Nh7 Rg8 Qh4 Rf8 Qh3 Rh8
1q1bqR1b/3R2Nk/1N1q4/2P2rr1/NK1P2n1/nb3Q1R/1P2R1B1/1R1b3Q b - - 0 1 illegal: No possible last move, all moves rejected
2N5/3kNq1r/1bN3Pb/bPR1bn2/2n2NR1/PqQB1N2/1RQ4K/rr6 b - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 bxa5 g5 c4 g4 Ba3 d6 Bc5 dxc5 h3 b4 hxg4 Ba6 g5 Bb5 cxb5 Qd6 Ke2 Qd5 Ke1 Qd8 d4 h5 f4 e5 Kf2 c6 Kg3 h4+ Kh2 e4 g4 h3 g6 c4 g7 c3 g5 c5 f6 e3 f5 e2 a3 e1B f7+ Kd7 f6 b3 a6 b2 d5 c4 g6 c2 d6 c1B a7 c3 Nd2 b1R Ndf3 c2 Ra2 Qc7 Rb2 Nc6 Ne2 Ne5 Rg1 Be3 Rg4 c1B Qc2 Nc4 Nf4 Re8 a8N Ne7 g8N Nf5 Ne7 Rh7 Bd3 Bh6 f8R Ba5 f7 Beb6 Rg8 Bce3 f8Q Bed4 Qf6 Be5 Rg7 Reh8 Rg8 Qb7 Rc8 Qd5 Rc5 Qf7 Nc7 Rf8 Nc8 Ra1 Nd5 Rd8 Qh4 Rf8 Qe1 Rb1 Kh1 h2 Nde7 Rfh8 Kg2 Re8 Qec3 h1Q+ Kf2 Qd1 Kg2 Rd8 Kh2 Rdh8 Q2d2 Qb3 Qdc2 Kd8 d7 Rf8 Nc6+ Kc7 d8N Kd7 N6e7 Re8 Ng8 Re6 Nge7 Rd6 Bf1 Rdd1 Ndc6 Ra1 Be2 Rdb1 Bd3
Bq4NK/1P6/qR2q1r1/n4QR1/RQb1PR1N/6R1/P2qn1b1/1rk2Qn1 b - - 0 1 legal: proof: g4 a5 f4 h5 gxh5 b5 b4 e5 bxa5 d6 fxe5 b4 c3 b3 Ba3 Be7 Bb4 Bg5 Bc5 Be3 Bb6 Bc5 Ba7 Bb4 Bc5 dxc5 cxb4 Rh7 Nh3 Rh6 Ng1 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 f6 d4 g4 a6 c4 h6 c5 b5 b2 h7 g3 h5 c3 d5+ Kd7 Kf5 c2 Kg6 c1Q Kg7 f5 d6 Ke6 b6 c4 h6 g2 a7 c3 d7 c2 Nf3 g1N Bg2 f4 Nh4 f3 Nc3 b1B Rh3 f2 Qf1 Qa3 Rg3 c1Q Nd5 Ne7 Nf6 Nbc6 Ng8 Be4 Rb1 Kd5 e6 Rb8 a8R Qd2 Ra4 Ng6 e7 Ba6 e8R Qb3 Rf8 Na5 Rf4 Bc4 e3 Qc8 d8Q+ Qd7+ Qe7 Qe6 Bh1 Bg2 Qb4 Ke5 Ne7 Rhf8 h8Q Rf6 h7 Qbb2 Ng8 Qb3 Rfg4 Nf4 Rg5+ Ke4 Rb2 Nfe2 Rb1 Kd3 Rb2 Bh3 Ba8 Rh6 Rb1 Kc2 e4 Qf3 Rb3 Qff4 Rbf3 Bg2 b7 Rd8 Rb3 Qb8 Rbf3 Rd3 Rf4 Re3 Ne7 Rb3 Qc8 Rb1 h8R Rf6 Rh6 Rg6+ Kh8 Bh1 Qh3 f1Q Ng8 Kc1 Qcc5 Bg2 Qcf5 Qf2 Qh1 Qfa7 Qhh3 Qaa6 Qh1 Rg7 Rf6 Rg6 Qhh3 Qed7 Rb6 Qe6 Qh1 Bf1 Qf3 Bg2 Qf1+
1kB1r2R/2P3P1/2Q5/1r1r1R2/Rr3nqn/RQ2rbB1/K3RP2/bN3rB1 b - - 0 1 illegal: No possible last move, all moves rejected
2B1r1N1/P7/rB1rNQ2/Qb4Q1/4rbK1/BQ3Pb1/nPQr4/n2Rnk2 b - - 0 1 illegal: No proof kernel
1Q2n3/1B1QPr2/r2b1B1R/rqRb1b2/kP6/2R3PQ/1r5N/R2K1bbR b - - 0 1 legal: proof: f4 g5 c4 b5 g4 d5 cxd5 b4 Nc3 b3 Ne4 Nc6 axb3 Nd4 b4 Nf5 b5 Ng3 hxg3 e6 Nd6+ Ke7 Nf5+ Kd7 Ne3 Ke8 Ng2 e5 fxe5 Bb4 Nf4 gxf4 Ra4 Bd6 Ra1 Bf8 e4 Kd7 d4 f5 b4 a5 b6 c5 g5 h5 g6 a4 d6 Kc6 g7 a3 b7 a2 b8Q c4 e6 h4 e5 h3 e7 c3 e8R h2 d7 f3 e6 f4 Qa7 c2 Be3 c1B Bg2 Kb5 d5 Nf6 g8R Qb6 d8Q Bd6 e7 Bf5 Bd4 Be3 Qab8 Ra5 Rg6 f2+ Ke2 f1R Nf3 Rh7 Rh6 Bg1 Qdc8 Rf7 Qe6 Qb7 Rc8 Ne8 Rc3 Rf2+ Ke1 Rb2 Bf6 Qb6 Qd2 Ka4 Kd1 Qb5 Qd7 Be4 Qh3 Bf5 Qd4 Ra6 Qda7 Ra5 Qd7 Ra6 Ne5 f3 Ng4 f2 Be4 Bc7 d6 f1B Bb7 Ra5 Qc6 Ra6 d7 Bd6 d8R Ra5 Qd7 Ra6 Rac1 a1R Rdc8 Raa2 R3c5 Kb3 Rd5 R2a5 R8c3+ Ka4 Rb1 Bd4 Rdc5 Be3 Rg1 h1B Nh2 Bd5 Rh1 Bg1 Ra1+
2B1Q1n1/QPqr1qr1/BnnB1Q2/1N4RP/2q3nb/4P3/1KB2B2/4qk1N b - - 0 1 legal: proof: b4 b5 f4 c5 d4 f5 dxc5 e5 fxe5 h5 g4 f4 a4 Bb7 axb5 Bc6 Ra6 Bb7 Rg6 Be4 Rg5 Bf5 gxf5 Rh7 Rg2 Rh8 Rg4 hxg4 Kd2 Ke7 Kc3 g5 h4 d5 h5 a5 b6 a4 e6 Kf6 b7 Ke5 c6 Ke4 c7 a3 c8Q f3 f6 f2 e7 a2 e8B a1N b5 d4+ Kb2 d3 c4 g3 f7 g2 c5 g4 e3 g3 c6 d2 b6 Ra7 c7 Be7 f8Q Nc2 Qh6 Bh4 Qe1 Nc6 b8B Rh7 Bd7 N2b4 Qf6 Nd5 Ne2 Kd3 Na3 g1Q Nb5 g2 Rh3 d1Q Ng3+ Qe2+ Bd2 Rg7 Qa1 Qf8 Rh1 Qf7 Qe8 Qh2 c8B g1Q Bd6 Rc7 b7 Nb6 Bdh3 Re7 Qa7 Rd7 Ne4 Qf4 Ng3 Qh2 Rg1 Q4c4 Nh1 Qg3 Bfg2 Qe1 Bf5+ Ke2 Bc2 f1N Bh3 Qgf4 Rg5 Nh2 Bhf5 Kf1 Bfd3+ Qe2 Be1 Ng4 Bf2 Qh2 Bf8 Qb8 Bd6 Qc7 Bf5 Qe1 Be6 Qe4 Bc4+ Qd3 Nd4 Qde2 Ba6 Qec4 Nb5
5r2/4Nn2/1n1N1Q1Q/2b1Q1b1/1PQ1q3/BKRqkrPQ/1PB4p/B2r3q b - - 0 1 illegal: Other
2b3KN/nkb5/1N1Q1Q2/N2R1NP1/1Q3r1p/3P1q1P/B1r3R1/n2rnN1q b - - 0 1 legal: proof: e4 d5 exd5 c5 a4 g5 f4 b5 axb5 Bb7 b4 Kd7 bxc5 Ke8 Bb2 Ba6 Bd4 Bc8 Be3 e5 fxe5 Ke7 Bf4 gxf4 Nh3 Kd7 Ng1 Ke8 Ke2 Kd7 Kf3 Kc7 Ke4 h5 c4 a5 g4 f3 g5 f2 e6 f5+ Ke5 a4 c6 a3 e7 f4 e8N+ Kb6 c7 h4 d6 a2 h3 f3 d7 Bb7 Ke6 Bc6 Kf7 Kb7 c8Q+ Kb6 c5+ Ka7 Ng7 Be7 Nf5 Bf8 Ne2 Rh6 Nc1 Bd6 Bc4 f1Q Rg1 f2 Rg2 Bf8 Nb3 Qh1 Na5 Bb7 c6 f1R c7 Ne7 d3 Rg1 Qa4 Ng6 Qb4 Nc6 Nd2 Qf6+ Kg8 Bd6 d8N Nge5 Nf7 Rd1 Nh8 Nf3 Qf8 Rc8 Nf1 Ne1 b6+ Ka8 Rc1 a1N Ba2 Na7 Rc5 Rh7 Rd5 Rf7 Nh6 Qf3 Nf5 Rb8 c8N Bc7 Nd4 Rf4 Nf5 Bc6 Qh6 Bd7 Qf6 Rb7 Ncd6 Bc8 Ndc4 Bb8 Qbd6 Rc7 Qb4 Rc6 Qbd6 Bc7 b7+ Kb8 Nb6 Rc2 Qa3 Nc6 Qb4 Ka7 b8Q+ Ka6 Qa8+ Na7 Qbd6 Bd7 Qaf8 Bc8 Nac4 Kb7 Qb4 Nc6 Q8d6 Na7 Na5+
N1N1QK2/R1q2QrR/2q4n/P3r1r1/1N6/1q2P1Nn/1kB1bRpP/b3N3 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 gxf5 d5 b4 h6 bxa5 d4 Ba3 d3 Be7 Kd7 Bg5 hxg5 cxd3 Ke8 d4 Qd6 d5 Qd8 Kf2 Kf7 Ke3 c5 Ke4 b5 a4 g6 d4 g4 d6 g3 Kd5 b4 e3 g5 a6 g4 a7 c4 f6 g2 e6+ Kg6 d7 Kf5 e7 b3 Kd6 Ke4 f7 g3 d5 b2 Na3 b1Q Ne2 g1R Qb3 c3 Nc2 Kd3 Ne1+ Kd2 Qc4 Bg7 e8Q c2 f8N c1Q Ng6 Bb2 Ne7 Ba6 Nc8 Rh7 Ra3 Qa5 d8R Nc6 Rd7 Rg7 Ra2 Rb8 a8N Ne5 Rc7 Rg5 Rh7 Nh6 Ke7 Qc7+ Kf8 Nef7 d6 Rbb5 d7 Rbe5 d8N Rg7 a5 Ng5 Qcf7 Nh3 Nc6 Rg2 Nb4 Q1c6 Rg1 Bb5 Nc3 Kc1 Ne4 Ba1 Rf2 Qb3 Bd3 Ba6 Bc2 Kb2 Nf3 Rgg5 Rd1 Be2 Ne1 Rg1 Rc1 g2 Ng3 Rf1 Rd1 Rg7 Rd7 Reg5 Rf6 Rff5 Re7 Re5 Rf2 Qb8 Rb7 Qbc7 Ra7
8/2N1NN2/Nkn1NPK1/1rb5/1R3qpP/BQnr3Q/q1Pq1Rb1/2b1R3 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 h5 f4 g6 g5 Qc7 Bh3 Qb6 fxg6 Qd8 Bg4 hxg4 f5 Bb7 Nd2 Ba6 Nb1 Bc8 Kf2 d5 Ke3 Kd7 Kf4 Kc7 b4 a5 h4 e6 f6 d4 g7 d3 b6+ Kc6 g6 e5+ Kg5 a4 b5+ Kb7 Nf3 e4 Nd4 e3 Na3 e2 Ne6 e1Q Qf3+ Nc6 Qh3 d2 Rf1 d1Q Rf2 Nge7 g8Q Rh7 g7 Nd5 Kg6 Qed2 Qf7+ Qd7 g8N Qf3 Nh6 Rb8 Bb2 Qc7 Re1 Qff4 Qg8 Qd7 Nf7 Nc3 Bc1 Q7d5 Bb2 Ka8 b7+ Ka7 b6+ Ka6 Nb5 a3 Bc1 a2 Ba3 a1B Nbc7+ Ka5 Rfe2 Bb2 Rf2 Nd8 c6 Bc5 Qh1 Qa2 Qh3 Ra8 b8N Rh5 b7 Bc1 Nba6 Kb6 b8R+ Bb7 Nb5 Rd5 c7 Rd3 c8N+ Ka5 Rg2 Nc6 Ne7 Kb6 Nbc7 Ra7 Rf2 Ra8 Nb4 Ra5 Nba6 Rb5 Rd8 Na5 Rd4 Bg2 Rb4 Nc6 Qa8 Nb8 Qd5 Nc6 Qb3
KNqR2q1/b1k1n1Rb/4p2P/1N2B1Q1/2n1r3/1rQ5/1P2qP1n/N1R1R1R1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 e4 Nb8 exf5 h5 g4 g6 Bh3 Nc6 fxg6 Nb8 g5 Be6 Bf5 Bc8 Bg4 hxg4 Ke2 Kd7 Ke3 c5 Ke4 a5 h4 g3 d4 a4 d6 a3 Kd5 c4 h5 a2 h6 c3 b6 g2 b7 c2 g7 Ra4 g6 Na6 b8N+ Ke8 Kc6 e6 d5 Nc7 d7+ Ke7 d6+ Kf6 Nh3 Ke5 Re1+ Re4 Qd2 g1N Ng5 Nf3 Na3 Nb5 Rb1 a1Q Qc3+ Kf5 Nf7 Nh2 Bg5 c1Q Bf6 Ba6 Nc2 Na3 Be5 Bd3 Kb7 Ne7 g8R Nc4 g7 Qa4 Na1 Qac2 Ka7 Qe2 Ka8 Qc8 d8R Qg5 d7 Rh7 Rh8 Qg6 g8R Bg7 Bd6 Bd4 Rbc1 Ba7 Be5 Qg1 Rg3 Rg7 Rg2 Rg3 Rhg8 Rf3 R2g7 Bc2 Qd2 Rb3 Qc3 Qg6 Bc7 Qh7 Nd6+ Kf4 Rgg1 Bb1 R8g7 Qg8 Qf3+ Ke5 Qc3+ Bd4 Nb7+ Kd5 Be5 Ba7 Nd6 Kc5 Rf8 Kb6 d8Q+ Qc7 Qd7 Qd8 Qb5+ Kc7 Qd5 Qd7 Rd8 Qc8 Qdd2 Bc2 Qg5 Rd4 Re8 Bh7 Rd8 Re4 Nb5+
bqRB4/1bPKN1q1/p1nNP3/1N1Q1r2/1PN2nQ1/8/4Nr1R/1Qbk2q1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 f5 axb5 c5 gxf5 c4 Bh3 c3 Bg4 hxg4 dxc3 Na6 c4 Nb8 c5 Bb7 Ra5 Ba6 Ra1 Bc8 Kd2 Kf7 Ke3 d5 Kd4 g5 c4 g3 h4 g4 e4 g2 c6 a6 f6 Kg6 h5+ Kf7 c5 Ke6 h6 g3 h7 Qc7 b6 Bd7 b7 Qc8 c7 Qd8 c8Q Qe7 f7 Qf6 c6 Qd8 Nc3 Bh6 Kc5 d4 Nb5 d3 Ne2 d2 Rh2 Ne7 f8N+ Kf7 Kd6 g1Q b4 g2 e6+ Kf6 e5+ Kf5 Ng6 Rf8 h8N Kg4 Nf7 Nd5 e7 Kf3 e8N Nf4 Ne7 Bf5+ Qd7 Be4 e6 Bd5 c7 Nc6 b8Q Ke3 Qb7 Qb8 Ne5 Rf5 Nc4+ Kd3 Qe1 Kc2 Bb2 d1B Bf6 Be4 Qa7 Bg5 Qd4 Bh6 Qd5 Qd4 Qg3 g1Q Qg4 Bh1 Bg5 Qg7 Qd8 Bg2 Kd7 Be4 Ned6 Bg2 Ng3 Bf3 Ne2 Bh1 Ra5 Bfg2 Qe4+ Kd1 Ra3 Bf3 Rd3+ Ke1 Nca3 Na7 Nac4 Nh5 Ne8 Rf8 Kd6 Qb7 Rc3 Kd1 Ng6 Bfg2 Rb3 Rf2 Rbh3 Rb8 Bh4 Bc1 Qb1 Nf4 Bg5 Rc8 Rh8 Qb8 Bh4 Ba8 Qdg5 Qc3 Kd7 Bhb7 Ned6 Nc6 Qd5+ Qd4 Bg5 Rf8 Rg8 Rf5 Rc8 Nh5 Bd8 Nf4 Qh1 Qa1 Ne7 Qg7 Qd5+
nQ2b3/1k1qnRn1/R3N3/rNp5/1bPNPK2/1Q6/RR4PB/2n1Rn1r b - - 0 1 legal: proof: a4 b5 axb5 f5 d3 e5 e3 e4 dxe4 f4 exf4 Bb7 Qd2 Ba6 Qd1 Bc8 h4 g5 hxg5 a6 b4 Qe7 b6 Nf6 b7 Ng8 b5 Qf6 b6 Qd8 Bb5 axb5 Ke2 d5 Ke3 Kd7 c4 Kc6 f3 h5 f5 b4 f6 b3 f4 b2 g6 h4 f5 h3 g7 d4+ Kf3 d3 f7 h2 f6 d2 Ra4 Nd7 b8Q Ne7 g8R Ra5 b7 Nb6 Rg7 Na8 Ra2 Qd7 Nc3 b1N Nb5 Nc3 Qb3 d1N Ne2 Ne3 Kf4 N3f5 Rg6 Ng7 Re1 h1N Ned4+ Kb6 Ba3 Ng3 Bd6 Rh1 Be5 Nf1 Rh6 Ng8 Rg6 Bc5 f8N Bb4 Nfe6 c5 f7 Ne7 f8R Ka6 Rf7 Ne2+ Kg4 Nc1 Bh2 Qc6 Kf4 Bd7 Qe8 Qd5 b8R Bc6 Rb7 Bd7 Qb8 Be8 Rg3 Qd7 Rc3 Qd5 Rcc2 Qd7 Rcb2 Nc8 Rc7 Ne7 Rc6+ Nb6 Qe5 Kb7 Rd6 Na8 Ra6 Qc7 Qd6 Qd7 Qb8+
7Q/Q3R3/K1Pp2Q1/1P1qPnqb/Nrr3RQ/2n3b1/3rQ1B1/NN1k1r2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 f5 gxf5 c5 a4 c4 axb5 c3 dxc3 h6 c4 Ne7 c5 Ng8 Bg5 hxg5 Kd2 Ke7 Kd3 a5 Kc4 g4 h4 g5 e4 a4 b4 a3 c6 g3 f6+ Ke6 b6 a2 Kb5 d6 c4 g2 c5 g4 c7 g3 c6 Bd7 c8N Bg7 h5 Be8 h6 Nd7 b7 Ne7 b8Q Bh5 f7 Ra4 f8Q Nc5 h7 Nf5 Rh4 Qg5 Ne2 g1Q Qa7 g2 Nb6 Qh1 Qd8 g1R Rg4 Rg2 Nc1 Rd2 Nb3 Re8 h8Q Bf6 Qdc7 Rb8 Qch7 Qf3 Qc2 Qd3+ Qc4+ Qd5 Qe2 Bd8 Bg2 Be7 Na3 Bd8 Rd1 a1R Re1 Rc1 Nb1 Ra1 Qd1 Na4+ Ka6 Rc4 Qe2 Nc3+ Na4 Rb5 Na5 Bb6 Nb3 Bf2 Qg6+ Qf6 Qg5 Bg3 Qh4 Qg5 Rg1 Rbc5 b5 Rb4 Rh1 Rcc4 Re1 Raa2 Na1 Rd1 Qf1 Rad2 Re3 Re1 Qe2 Rf1 Qaa8 Kf7 e6+ Kg6 e7 Bf4 Qd4 Bg3 Qda7 Kf6 Qe8 Ke6 Qg6+ Ke5 Qb7 Kd4 e8Q Qe7 Qh8+ Qee5 Qe1 Qf6 Re2 Kd3 Qa7 Qe7 e5 Qf6 Rf2 Qg5 Rff4 Rf3 Qd1 Rf1 Qc2+ Ke2 Qb2 Ne7 Rf7 Nf5 Re7 Kd1 Qa2 Rdd4 Qf2 Rd2 Qe2+
1rk2Q2/p1qPq1R1/1qB2nQ1/6Q1/P1R1P3/rbK2RR1/1R3q2/NbB4n b - - 0 1 illegal: No possible last move
6bQ/4q1k1/P1QRR2q/KnPNpnb1/1R1q2Q1/1PBb4/2nQ4/2Q1r2N b - - 0 1 illegal: No possible last move, all moves rejected
qbNK1NQ1/k3PPr1/1R3qN1/q5Q1/N1n3bQ/nB1N3P/p4R2/3bn3 b - - 0 1 legal: proof: g4 a5 c4 d5 cxd5 b5 f4 e5 fxe5 f5 a4 h6 axb5 f4 b3 Kf7 Ba3 Ke8 Be7 Ra6 Bh4 Rf6 Bg5 Rf5 gxf5 hxg5 Kf2 Kd7 Kf3 c5 Kg4 Kc7 d4 Kb7 e4 g6 b6 c4 d6 a4 b4 c3 b5 a3 d5 a2 e6 c2 e5 c1N e7 f3 e8N f2 e6 Qd7 h3 Na6 f6 Ne2 f7 Nc1 Bc4 f1B Rh2 Be2+ Nf3 Bh6 Qd4 Nb3 Nc3 Nc1 Rb1 Ne7 Rf2 Nc6 Bb3 Rh7 Na4 Qd8 d7 Qf6 d8Q Nab4 d6 Nc2 d7 Nd3 Nd6+ Ka8 e7 Rg7 Qg8 Na5 b7+ Kb8 Qc4 Ka7 b8N Nde1 Na6 Na3 N6c5 Bd1 Qd5 N5c4 b6+ Kb8 b7 Ka7 Kg3 g4 d8N g5 Nde6 Bd7 Nd3 Bc8 Nf8 Be6 Nh4 Bf5 Kh2 g3+ Kh1 g2+ Kh2 g4 Kg3 Bc1 Nhg6 g1Q+ Qg2 Bb2 Kf4 g3 Qh7 Ba1 Qh4 Qh1 Qd5 g2 b8Q+ Ka6 Rbb2 g1Q Qg2 Qf1 Qgg5 Qa8 Qd8 Qc3 Qe8 Bfg4 Qb8 Bgf3 Kf5 Qa5+ Ke6 Bh5 Qc8+ Ka7 Kd7 Bhg4+ Ke8 Qb4 Rb1 Be5 Kd8 Bh2 Bc2 Qa5+ Rb6 Qe2 Bb3 Qb2 Qh8 Qf6 Qg8 Qb8 Qh4 Qb7 Qf5 Qh1 Qfg5 Qe4 Nf5 Bb8 Nd6 Qa8 Nc8+
b1N3R1/PpKB1b1N/5bk1/Q1P4N/r1n2Q1b/P2bBrB1/3q4/r2N3N b - - 0 1 illegal: Other
3Q4/nK4B1/Q2Rqb2/r2rQnkp/1PB5/2PQ2P1/1rNNQ1q1/rN2r3 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qd8 f4 Na6 b4 Bg7 f6 Bf8 h3 Nb8 f5 Bb7 Ra3 Be4 Rf3 Bb7 Rf4 gxf4 Nc3 Bf3 Nb1 Bg4 hxg4 Bh6 Bd2 Bg7 Bc1 Bf8 Ke2 Kf7 Kd3 e5 Ke4 h5 Kd5 a5 c6 d6 b6 a4 c7 a3 c8Q a2 b7 a1R g3 f3 g5 e4 c3 f2 Qd3 e3 Nf3 e2 Nfd2 Nc6 b8Q e1R Qca6 Nh6 g6+ Kg8 g7 Kf7 g8N Qc8 Ne7 Na7 Nc6 Bg7 Nd4 Rhe8 Nc2 R8e2 Rh4 Qd7 Rd4 Qe8 Kc4 d5+ Kc5 Qe4 Kb6 Qe6+ Kb7 Bh8 Qe5 Ra5 Rc4 d4 Rc6 Rd8 Rb6 Rdd5 Rd6 Bg7 Bg2 f1Q Bh3 Qg1 Bf1 Rf2 Be2 Qg2 Bf1 Ke8 f7+ Ke7 Qee2 Kf6 f8Q+ Kg5 f6 Nf5 f7 Be5 Qd8+ Bf6 Qe5 Rfe2 f8Q Rf2 Qde2 d3 Qfe7 Qf3 Qed7 Qg2 Nb3+ d2 Qdb5 Kg6 Qbd3 d1R Bh6 Rc1 Bg7 Kg5 Nba3 Rb1 Nd2 Rb2 Nab1 Rf3 Nba3 Ra1 Nab1 Re3 Qf2 Re1 Qff3 Qf2 Qfe2 Qg2 Qf2 Re3 Qdd4 Re1 Bc4 Qe8 Qd3 Qe6 Qfe2
Qq5B/3Rrq2/4RBP1/6NB/qPK1P1bR/1R4qn/qQ1p4/1r1kn2R b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 f4 c5 fxe5 Bg7 dxc5 Bf8 h4 Bd6 g4 Ba6 Nc3 Bf8 Nd5 Be7 Nf4 gxf4 g5 Bc8 g6 Bg5 hxg5 Ba6 Qd5 Bb7 Qd1 Bc8 Kd2 Ke7 Kd3 Ke6 c4 Kf5 b4 Kg4 e4+ f3 b6 h5 g7 d5 e6 f5 g6 a5 e7 d4 e8Q h4 c6 f4 c7 h3 c5 h2 b7 a4 c6 a3 Nh3 a2 Qa4 f2 Qe7 Kf3 Qd7 Rh7 Qe6 Na6 b8B Ne7 g8R Nd5 Rf8 Nc5+ Kc4 d3 Qd7 Re7 Rg1 h1Q Rg2 d2 Bb2 Nd3 Rh8 Qg1 Rh4 Qg8 Re1 a1Q Bh8 Qb1 Qb3 Ra1 Qb2 Qh2 Qd8 Qa2+ Qb3 Bf5 c8R Rb1 c7 Qe8 Rd1 Qea4 Ng5+ Ke3 Be2 f1Q Bf3 Qf2 Bh5 f3 Rg3 Ke2 Rh1 N5f4 Qe8 Qe3 Rd8 Nh3 c8R Ne1 Bbe5 Bg4 Rc6 f2 Rd7 f1Q Qa8 Qf7+ Re6 Qea7 Bef6 Qb8 Rc3 Qhg3 Rcd3 Qa1 Qc3 Kd1 Qb2 Q1a2+ Rb3
B1N1q3/1bNn2Q1/Rr3Q2/4N3/1R2rPr1/2n2NP1/Npr1QP1K/1qqk4 b - - 0 1 legal: proof: h4 f5 c4 d5 b4 a5 bxa5 g5 hxg5 d4 e3 f4 exf4 Bg7 c5 Bf6 Bb2 Be5 Bc3 Bd6 cxd6 dxc3 d4 Kd7 a4 Ke6 d7 Kf5 a6 Ke4 a7 h5 g6 e5 d5 c5 g7 b5 a5 c4 g3 h4 d6 h3 a6 c2 Ra3 c1R Be2 h2 Kf1 b4 Kg2 c3 Qf1 b3 Ra5 c2 Nf3 Ne7 g8Q Rh4 Qg7 Qe8 d8N Nd5 d7 Bb7 Nc6 Nc3 d8Q Nd7 Qdf6 Rb8 a8N Rg4 a7 b2 Nb6 Rg6 a8N Rg4 Rg1 h1R Rb5 Re1 Nc8 c1Q Nc7 Rh6 N8e7 Rc8 Bc4 Re2 Bd5+ Kd3 Rb4 Kc2 Qe1 e4 Nce5 e3 Qf1 Rhg6 Kh2 Re1 Bc6 e2 Bd5 Kd1 Rh1 Ra8 Nc8 Ra6 Rg1 Rb6 Bc6 Ba6 Ba8 Bb7 Nbd2 Qb1 Nb3 Rc6 Nc1 Rc5 Qh4 Rb6 Qhf6 Rc4 Na2 Re4 Qg2 Rf1 Qh3 e1Q Qhh6 Qe3 Qh5 Qec1 Rh1 Ke2 Rg1 Rd1 Rf1 Rd2 Rd1 Rc2 Rd6 Rb5 Ra6 Rb6 Qhf7 Kd1 Q7e6 Nc5 Qc4 Nd7 Qe2+
nN1R1NN1/7N/1RK1BPkr/b2Q3b/p5r1/qPb2Nb1/2q2rPR/5Q2 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bf8 f6 Ke8 h4 Nh6 b3 Nd7 f5 Ne5 Bb2 Nef7 Be5 Ng8 Bf4 gxf4 Ra4 Be6 Ra1 Ng5 hxg5 Bc8 Ke2 Kf7 Kf3 a5 Ke4 c5 d4 h5 b6 e5 b7 h4 b8N c4 d6 f3 Kd5 c3 d7 e4 Bb5 e3 Nd2 a4 Nc4 f2 Ne2 f1R Nd2 h3 Ng1 h2 Rc1 e2 Rc2 e1B Ndf3 Bb4 Qc1 Rh6 Kc6 Ba5 d5 Bg3 d6 Qe7 d8R Rf2 d7 Qa3 Qf1 Ba6 Re2 c2 Nh3 c1B Re6 Bb2 Bc4 Ra7 Bd5 Rb7 Bc4 Rb4 Bd5 Rg4 Bc4 Qf8 Bd5 Be2 Bc4 Qe8 g6+ Kf8 f7 Kg7 Kd5 Rg5 f8N Bge5 Nfg1 Bbc3 Rb6 Nf6+ Kc6 Bh5 Nf3 Nd5 Rc8 Nc7 Bd5 Kf6 g7 Qg6 Be6 Rg4 Nhg5 Na8 g8N+ Kg7 d8Q Bd6 Ngh7 Bde5 Rg1 h1Q Qb5 Bc7 Qdd5 Bg3 Rb1 Qc1 Rd8 Qa3 Rh1 Qg5 Rh2 Qgc1 Qf1 Qd2 Nfd7 Qc2 f6+ Kg6 Ndf8+
2rr4/1QbP2K1/2b3RP/1pn1Qr2/2BPq1rB/R7/Q1q1N3/Rb2kRR1 b - - 0 1 illegal: No possible last move, all moves rejected
R2n4/NP4QK/8/2PRRr1k/3bP3/QnN1p1qR/3RbB1N/bqn3n1 b - - 0 1 illegal: No possible last move
5rN1/1RRn1B2/8/nbb4P/k4QBR/B1Rr2PP/rnn1Rp1Q/5Kn1 b - - 0 1 legal: proof: d4 e5 g4 g5 a4 b5 axb5 h5 gxh5 g4 c4 g3 c5 d6 d5 g2 Na3 Qg5 Nc2 Qf4 cxd6 Qg5 Nd4 Qg3 fxg3 exd4 e4 Kd7 b4 f5 e5 c5 e6+ Kd8 e7+ Kd7 e8B+ Kd8 d7 Kc7 d8R Kb6 d6 a5 d7 d3 Nh3 g1N Ng5 f4 Be2 d2+ Kf1 f3 Nf7 f2 Ba3 a4 Nh6 c4 Bg4 c3 Rc1 c2 Bf7 Nc6 Re8 Na5 d8R Bc5 Rd7 Ba6 Rc7 Nf6 Re2 Rhf8 Ng8 Nd7 Qe1 Bd4 Rc3 d1N Rc7 Nb2 Rc3 Kb7 b6 Bb5 Rc7+ Ka6 b7 Be3 b8R Bc5 Rbb7 Rad8 Qd1 Ra8 Qd5 Ra7 Qg2 Raa8 Rd1 c1R h3 Rc4 Rd4 Rc3 Qh2 Rd3 Bf3 Nd1 Rh4 Nb2 Bg4 Nd1 Bb2 a3 Bc1 a2 Ba3 Bd6 Rc3 a1N Rbc7 Nb2 Rb7 Bc4 Rc7 Kb6 b5 Bb4 Rb7+ Kc5 b6 Kb5 Rc7 Nc2 b7 Bc5 b8Q+ Ka4 Rb7 Ba6 Qf4+ Nd4 Re1 Ne2 Qe4 Bb5 Rcc1 Nc6 Qf4 Bd6 Bc5 Ka5 Kg2 Be7 Rhf1 Ng1 Re2 Ra7 Rc4 Ra6 Rfc1 Bd6 R1c3 Nc2 Bd4 Ra7 Rc5 Kb4 Kf1 Ra2 R5c4+ Ka5 Rc5 Ka4 R5c4+ Bb4 Bb6 Na5 Rcc7 Nac4 Ba5 Bc5 Bb4 Na5 Ba3+
1k3nQ1/1Nr1N1Pn/N3B1nK/1Qp4P/rrP2RNb/R1n1r3/8/2q1NR2 b - - 0 1 illegal: No possible last move
4QB2/2R1P3/QNrB1Np1/K2nQ1r1/6r1/1BBn1PPn/n2qkn2/Bq6 b - - 0 1 legal: proof: b4 b5 f4 d5 c4 h5 cxd5 h4 a4 h3 axb5 Rh6 g3 Rh4 Ra3 Rh5 Rf3 Rh4 Rf2 Rh8 Nf3 e5 Nc3 f5 Ba3 e4 Ng1 Bd6 Bc1 Be5 fxe5 f4 Nb1 f3 Rg2 Bg4 Qb3 f2+ Kd1 Bf3 exf3 hxg2 Ke2 Rh6 Qd1 Rh8 d4 Kf7 Kd2 Kg6 Kc3 Kh5 h4 c5 e6 a5 e7 c4 d6 a4 d7 a3 b6 a2 d5 a1N d6 g6 b5 e3 Kb4 c3 b7 e2 b6 e1Q Nh3 g1N Nf4+ Kh6 h5 Kg5 h6 c2+ Nc3 Qd2 h7 Nh3 Qe2 Ra5 Nh5 Nb3 Nf6 Nc5 Qa6 Nh6 Bc4 f1R Bb3 Ng4 Bb2 c1N Ba1 Qc2 Na4 Kf5 Rh2 Qb2 Rc2 Ngf2 Rc3 Rf8 h8B Ke5 Bg7 Kd4 Bh6 Rf7 Bf8 Qb1 Rc4+ Ke3 Rc2 Qc7 d8Q Nbd7 Qe8 Qd8 b8Q Re1 b7 Nb6 Rc4 Ke2 d7 Rd1 Qd6 Rd4 b8B Re4 Qe5 N5d3+ Kc3 Rc5 Bd6 Rc6 Rc5 Rh7 Rc4 Rh5 Rc5 Qc8 d8B Rg5 B8c7 Qd8 Rc4 Ndf4 Kb4 Na2+ Ka5 Nbd5 Nb6 N4d3 Bb4 Qd7 Bbc3 Qd6 Qf5 Qf4 Bd6 Qd2 Rc5 Rc8 Rc7 Reg4 Rd7 Rcc4 Rc7 Rc6 Qe5+
2n1RK1Q/1R2rnQ1/3Qqp2/7p/3Nr1Q1/R1NbP2P/rPb4n/Q1Bk4 b - - 0 1 legal: proof: e4 b5 a4 e5 axb5 g6 Bd3 c6 bxc6 Bh6 f3 Be3 dxe3 Na6 f4 Ne7 fxe5 Nb8 Bc4 Ng8 Be6 Ne7 Bh3 Ng8 Bf5 gxf5 Kf2 Ke7 Kf3 Ke6 Kf4 a5 c4 d5 g4 d4 g5 f6 c5 d3 g6 h6 c7 a4 g7 a3 c6 d2 Nf3 a2 Nc3 Qd5 Ne2 Ba6 c8Q+ Nd7 c7 Ra7 Qd8 Bd3 c8Q Ne7 h3 h5 Rg1 Rf8 g8Q+ Rf7 Qc4 Nc8 Rg7 Ra4 Rh7 Rb4 Qg7 Re7 Qdg1 d1B Qa6+ Ndb6 Q1g4 B1c2 Qdh8 Nd6 Nfd4+ Kd7 Qha8 Nf7 e6+ Kd6 e5+ Kc5 Qa3 Kc4 Qah8 Rd7 e7 Qe6 e8Q Nc8 Qef8 Ra7 Qd6 Re7 Rb1 a1R Qa5 Qd7 e6 Ra2 Ra1 Rba4 Kf3 f4 Qa8 Re8 e7 Qe6 Qa7 Rd8 e8R Rd7 Kf2 f3 Kg3 f2 Kf4 f1N Qa8 Raa7 Qh1 R2a4 Ra3 Nh2 Qf1 Re7 Qd1 Qd5 Qh1 Qc6 Qhg1 Re4+ Kf5 Rae7 Kg6 Ra8 Bd2 Qd5 Qa1 Qe6 Bc1 Raa7 Qh6 Ra4 Kg7 Ra5 Kf8 Ra4 Rb3 Ra2 Rb7 Ra6 Q6g7 Ra2 Nb5 Kb3 Ra7 Bb1 Ra3+ Kc2 Nbd4+ Kd1 Qgg8 Nd8 Rf7 Bbc2 Qg8g7 Ra7 Rb7 Nf7 Rb5 Rc7 Rb7 Re7 Nc3+
2Rr4/2R1Rqk1/Q1Q1rPbb/np6/1K3P1n/2BQQNP1/q4p2/n1Q1N3 b - - 0 1 legal: proof: c4 e5 f4 a5 b4 g5 bxa5 d5 cxd5 g4 e3 e4 Be2 g3 Bf3 exf3 hxg3 Qd7 g4 Qd6 g5 Qd8 a4 c5 d4 b5 Kd2 h5 Kc3 h4 g3 c4 g6 f6 d6 f2 d5 h3 d7+ Ke7 g7 Kf7 d6 h2 e4 Rh4 e5 Qe8 d8R Bf5 d7 Bg6 a6 Bc2 a5 Be7 a7 Bf8 a6 Bg6 Nd2 Qe6 Ngf3 Rh8 Ne1 Qe8 Bb2 Nh6 Qc1 Rh7 Rc8 Nc6 d8Q Nf5 Ndf3 Nh4 Qd3 Na5 Ra2 Rb8 a8Q Qe7 Rf1 h1Q a7 Qd7 Rc7 Rd8 Qc6 Kg8 a8Q Qf7 Qce3 Qh3 Qca6 Qhe6 Q8c6 Rh8 Qc1 Rd6 Kb4 c3 Rh1 c2 Bc3 Qd5 Qce3 c1N Rc2 Qa2 Re7 Kh7 g8Q+ Kh6 Rh3 Ncb3 Rh2 Bg7 Qgc8 Rhd8 Rh1 Bf8 Q8c7 Kg7 Rh3 Ng2 Rh8 Na1 Rc1 Re6 Rg8+ Kh7 Rc2 Bh6 Rf8 Rd7 Rc8 Kg7 Qca8 Qd5 Bd2 Rdd6 Qcc3 N5b3 Qb2 Na5 Qc1 Qa2 R2c7 Rd8 Bc3 Nh4 Qad5 Nb7 Qdc6 Na5 exf6+
4R1Q1/2nKRB2/1PQR2nR/3Rq1pq/1NP1r1P1/6r1/4pkb1/2Bq1B1b b - - 0 1 legal: proof: d4 a5 a4 c5 dxc5 f5 e4 b5 axb5 Na6 exf5 Nb8 b6 Ba6 Be3 Bb7 Bc1 Bc8 h4 g6 b4 Ba6 b5 Nc6 h5 Nb4 h6 Bc8 Nc3 Na6 Nd5 Nb8 Nb4 Bg7 hxg7 axb4 b7 g5 Ra5 Kf7 Ke2 Kf6 Ke3 Ke5 f6 h5 c6 d5 c7 b3 f7 h4 Qf3 b2 f8Q h3 g4 h2 c4 Na6 b8R Qd6 b6 Bb7 c8R Nc7 Ne2 Rh3 Nd4 Rg3 Nc2 b1B Nb4 Be4 Rb5 e6 Rc5 Ne7 Qg8 Ng6 Rf8 Qe7 Rbd8 Rc8 Rd6 Re8 Rf7 Ba8 Rg1 h1Q Rg2 Qf6 Rh2 Bb7 Rh6 Qh5 Kd2 Qe7 Kc3 Bc6 Kb3 Kd4 Ka3 Ba8 Ka4 e5 Qh1 Qf6 f4 Bf3 f5 e4 Ra5 e3 Qg2 Qe7 f6 e2 Qh1 Qe3 Rfd7 Ke4 f7 d4 f8R d3 Raf5 Re5 Re7 d2 Rfe8 Qc3 Qg2 Ke3 Qh1 Re6 Rb5 Kf2 Ra5 Nd5 Kb5 d1Q Kc5 Nc7 Rb5 Bae4 Ra5 Nd5 Kc6 Nc7+ Kd7 Ba8 Rb5 Bfb7 Qd5 Qe3 Qc5 Bh1 Ra5 Bag2 Qc6 Qed4 Rad5 Qe4 Qh8 Qf5 g8B Re4+ Be6 Qf6 Qg8 Qe5 Bf7
2bqB3/8/kPqPQ2B/prqP1p1n/1N1NQ2r/B2R4/8/1nN1BBKb b - - 0 1 legal: proof: d4 b5 c4 e5 a4 d5 cxd5 h5 axb5 h4 d6 h3 gxh3 Bf5 h4 Bh3 h5 Bc8 b4 Bb7 e4 Qg5 f4 Nd7 d5 Qe7 Ra2 Ndf6 Rd2 Qd8 Rd4 exd4 e5 Nd7 Nf3 Be7 Ng1 Bf6 e6 Be5 fxe5 Nb8 Na3 Ba6 Nb1 Bc8 Kf2 f5 h4 a5 b6 c5 b5 g5 h6 d3 b7 d2 e7 Kd7 b6 c4 h7 g4 h5 c3 h6 c2 Qf3 d1B Nc3 Ra7 Na2 Na6 Ba3 c1Q Ne2 g3+ Kg1 g2 Nb4 Ra8 Qe4 Nf6 Rh3 Nc7 Rd3 Qc6 Nc1 Bf3 b8N+ Ke8 Nd7 Nh5 Nc5 Nb5 Ne6 Kd7 Nd4 Rb8 Ncb3 Nc3 Nc1 Bb7 e8Q+ Kc8 e6 Nb1 e7 Ba6 Ndc2 Kb7 Nd4 Rc8 Qf7 Qcd7 e8B Rc5 Qfe6 Qc6 Q4e5 Rb5 Qe4 Rg8 h8B Rg4 h7 Rh4 Qg4 Be4 Bg7 Bf3 h8B Be4 Bh6 Bf3 Kf2 g1Q+ Ke1 Bh1 Qge4 Qcd7 Be5 Qc6 Bg3 Qe3+ Nce2 Qec1+ Kf2 Q1c5 Nc1 Ka8 Qe2 Bc8 Q2e4 Kb8 Kg1 Kb7 Nba2 Ka6 Bf2 Qdd7 Be1 Qd8 Nb4+
R1r2R2/kBBb2P1/r1p1Q1q1/nQ5n/1K5Q/P2p1Pn1/1R4b1/qN1R2R1 b - - 0 1 legal: proof: h4 b5 d4 e5 dxe5 a5 b4 g5 bxa5 Be7 hxg5 Bc5 c3 Bf8 e4 f5 e6 b4 e5 b3 Nd2 Ba3 Ne4 Bb4 cxb4 fxe4 Kd2 d5 Kc3 h5 g4 b2 e7 Kd7 e8R Kc6 a6 Kb6 a7 b1Q f3 h4 g6 h3 g5 h2 a3 e3 b5 e2 g7 e1N e6 Qd7 e7 Nd3 g6 Rh6 Qe1 Qd6 Bf4 Bg4 Ne2 Bh5 Rf8 Bg4 e8Q Kb7 b6 Be6 Rg1 h1B Qb5 Nc5 Qh4 Nf6 g8Q Bd7 g7 Bg2 Qe6 d4+ Kc4 Qa2+ Kb4 Nh5 Rd1 Qa1 Nc3 d3 Nb1 Qc6 Bg3 Ne4 Bf4 Bh1 Bh3 Neg3 Bf5 Rh8 Be4 Bg2 Rf6 Rc8 Rf8 Be8 Bd5 Nd7 Be4 Nc5 Bd6 Bd7 Bd5 Rab8 a8R Nb3 Ra5 Ra8 Be5 Kb8 b7 Ra7 Ra6 Ra8 Rb6 Ka7 b8R Na5 Bf4 Qc1 Bd6 Qg5 Bb7 c6 Bc7 Qg6 Qbg5 Rd8 Kc5 Rc8 Rb3 Nf6 Kb4 Nfh5 Bd6 Kb6 Rb2 Ra6 Bc7+ Ka7 Qc5+ Rb6+ Qb5 Ra6 Ra8+
1BN4q/1K1BNPBp/1PnQ1p2/6q1/rB1bn3/1bPqkB2/6Q1/3Nr1R1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Nc6 d4 Nb8 dxc5 Qc7 Ra3 Qb6 Ra1 Qd8 exf5 Kf7 f4 Qe8 b4 Qd8 f6 Qe8 f5 Qd8 Ra6 Qa5 Rd6 Ke8 f7+ Kd8 f6 Bg7 f8B Ke8 Re6 Kf7 Rc6 Qd8 Rd6 Kg6 f7+ Kf5 Rf6+ exf6 Qd3+ Ke5 Qd1 Ke6 Kd2 Kf5 Kc3 Ke4 Kc4 a5 g4 d6 g6 a4 c3 a3 b6 d5+ Kb5 a2 c6 a1Q b7 d4 c7 d3 Kb6 d2 b5 Ra7 g5 Ra3 Bb4 Qe7 Bg2+ Kf4 Bf3 Ra2 Na3 Nc6 b8B Nd8 Nc4 Bf8 g7 Nc6 g6 Ra4 Nd6 Ke3 Nh3 Be6 c8B Bb3 Bd7 Qd8+ Kb7 Nh6 g8N Nf5 g7 Ng3 b6 Ne4 Nc8 Bc5 Nge7 Re8 g8Q Bd4 Nf2 Qb1 Rf1 Qd3 Qg2 Qb5 Rg1 Qg5 Ng6 Re5 Bca3 Qh8 Bf8 Ne7 Bb4 Nc6 Nge7 Re6 Bg7 Re5 Qdf1 d1Q Qb5 Qd3 Qd5 Ra1 Qc5 Re1 Qd6 Ra5 Ba3 Ra8 Bb4 Ra4 Nd1+
B1n2b1N/Q2Qq3/KB2k3/1rp1pbn1/1b4Pq/1RQ1PN2/2Q2P2/1nN2Q2 b - - 0 1 legal: proof: b4 b5 a4 f5 g4 a5 gxf5 d5 c4 g5 cxd5 g4 h3 g3 Ra2 Ra6 Rb2 Rf6 axb5 Be6 b6 Bc8 b5 Rg6 Rb4 Rg4 hxg4 axb4 d4 Kd7 Kd2 h5 Kd3 e5 Kc4 c6 f6 g2 b7 b3 d6 b2 f7 h4 d5 h3 b6 h2 Be3 Nf6 Nc3 b1N Na2 Qe7 Nf3 Nh7 Qc2 Nc3 Nc1 Bh6 f8N+ Kd8 d7 Nd1 Ng6 Rf8 Nh8 Rf6 Bc5 Bf8 e3 Nc3 Bd3 Rd6 Be4 Nb1 Rd1 g1B Rd3 h1Q Rb3 Qh2 Kb4 Qh5 Ka5 Bh2 Bd4 Qhh4 Bc5 Na6 b8Q Nb4 b7 Bf4 Qa7 B4h6 b8Q Ng5 Qb5 Bhg7 Qf1 Bf6 Bd4 c5 Bc3 Rb6 Bd2 Rb7 Qc3 Nc6+ Ka6 Kc7 Be1 Kd6 d8Q+ Bd7 Qc2 Rb5 Qa5 Bf5 Qac3 Nd8 Bd2 Nb7 Be1 Kd7 d6 Ke6 d7 Nd6 d8Q Nc8 Bb7 Qc7 Qdd1 Bd8 Ba8 Qe7 Qdd3 Ba5 Qdd7+ Kf6 Bd2 Bb4 Qa1 Ba3 Ba5 Bb4 Bb6 Bc3 Qdd3 Bb4 Qac3 Ke6 Qdd7+
1N2R3/4Knb1/n1q1bpk1/p1R1PP2/1P3qB1/QR1RQ3/Q1nr4/1q2BR2 b - - 0 1 illegal: No possible last move, all moves rejected
NrqBQ2q/3P1N2/1bk1nrR1/5n1r/1K1PNP2/N1N1Q2Q/5ppR/2n5 b - - 0 1 legal: proof: f4 b5 c4 h5 a4 e5 fxe5 d5 cxd5 f5 axb5 f4 Qc2 f3 Kd1 f2 Qa4 Ke7 Kc2 Bg4 Qb3 Bf3 gxf3 Ke8 Bh3 Nd7 Bg4 hxg4 Kd3 Rb8 Qd1 Ra8 Kc2 Nb8 Kb3 Kd7 e4 c5 h4 g5 d4 a5 d6 g3 e6+ Ke8 e7 Kd7 e8Q+ Kc8 b6 Kb7 h5 g4 h6 g2 e5 g3 d7 Ne7 e6 Nbc6 h7 Ng8 e7 Ne5 Bg5 Bg7 f4 Nc6 Rh2 Rc8 Qdh5 Rb8 Na3 Bf8 Qh3 Qc8 Ne2 g1Q Nc3 Qh1 Rg1 a4+ Kc4 Nd8 b4 Ne6 b5 Nh6 Bf6 Rg8 h8N Nf5 Nf7 Rg6 Bh4 Rf6 Rgg2 Ka8 b7+ Ka7 Bg5 Kb6 Rg1 Kc7 b6+ Kc6 Rgg2 Qd1 Bh4 Qh5 Rg1 Qh8 Rgg2 Ra8 b8Q Ra5 b7 Ra8 Qe5 Rb8 Nab5 a3 Qe3 a2 Na3 a1R Kb3 c4+ Kb4 Rh1 Bg5 Ra8 b8N+ Kc7 Na2 c3 Na6+ Kc6 Nc5 c2 Ne4 c1N Nac3 Bh6 Qg8 Bg7 e8N Bf8+ Nc5 Be7 Nc7 Bd8 Qe8 Rb8+ Nb7 Nfg7 Na8 Bb6 Nbd6 Nf5 Nde4 Rg6 Qh5 Rh6 Bd8 Rf6 Rh4 Rh3 Rh2 g2 Rg4 Rh4 Rg6 Rh3 Qg4 Rh5 Qgh3
4n3/P1P1q3/b1K1B1b1/1B1Qk3/Nq1q1Rrn/1N1B3p/2p1nB1P/N2Q2B1 b - - 0 1 legal: proof: e4 f5 b4 a5 bxa5 g5 a4 Ra7 f4 Kf7 Ra3 Ra8 Rf3 Nf6 exf5 Ng8 f6 Ke8 f5 Bg7 Rf2 Bf8 Rf4 gxf4 c4 Kf7 d3 b5 Na3 c5 Nb1 b4 Nf3 Bh6 Ng1 Kf8 f7 Kg7 Qd2 Ra7 Qd1 Rb7 Bd2 Kf6 Bc1 Rb5 cxb5 c4 d4 Bg7 Qb3 Kg5 Qd3 Be5 Qc2 Bd6 Qd1 Bc5 dxc5 Kf6 Kf2 e5 Kf3 h5 Ke4 f3 Kd5 c3 f8N e4 g4 f2 a6 d6 g5+ Kf7 a5 h4 f6 h3 a7 c2 a8B e3 c6 e2 b6 e1N g6+ Ke8 g7 Kf7 c7 b3 a6 b2 b7 Rh6 a7 Bd7 Nf3 Nc6 b8Q Qe7 Nbd2 b1Q Qb3 Rh8 Nd4 Rh4 Nfe6 Be8 Nc5 Nf3 Bd3 f1B Na4 Rg4 Bb2 Be2 Rf1 Nh4 Rf4 Bf1 Qc4 Be2 Bc3 Qb4 N4b3 Nd4 Na1 Bf1 Ndb3 Ne2 Re4 Kg6 f7 Kf5 f8B Bg6 Bd4 Nf6+ Kc6 d5 g8B Ne8 Bg1 d4 Qd5+ Kf6 Bb5 d3 Be6 d2 Bb7 Qg7 Bfc5 Qe7 Qc1 d1Q Bcf2 Qdd4 Qd1 Nf4 Bbc8 Bd3 Bf5 Ne2 Rf4 Bc4 Qh1 Ke5 Bd3 Bg8 Bcf5 Be6 Qf3 Bc8 Be6 Ba6 Qd5+
4bb2/p1b4Q/RB1BK1NB/n4B1P/1P2Bbp1/r1NqQn2/2P2k2/6bQ b - - 0 1 illegal: No possible last move, all moves rejected
1r4Q1/n3N2K/RN4p1/1RrR1N1n/r3Qqr1/B4N1p/qk2P1PP/1b2N3 b - - 0 1 legal: proof: d4 d5 f4 e5 dxe5 b5 a4 d4 axb5 d3 cxd3 Bd6 d4 Nh6 d5 Nf5 e6 Be5 fxe5 Ng3 Qd2 Nxf1 Qd4 Qe7 Qd1 Qd8 Kf2 Ke7 Kf3 h5 Kf4 f5 Kg5 c5 Kg6 a5 b4 a4 d6+ Ke8 d7+ Ke7 b6 h4 b5 c4 b7 a3 b6 h3 Qa4 c3 Bd2 a2 Na3 c2 Nf3 c1R Bb4+ Rc5 Nc2 f4 Nce1 Qf8 d8N Nc6 b8R Na7 b7 Ng3 Qc2 Rh4 Qe4 Rg4+ Kh7 g6 Rf1 Nh5 Nc6+ Ke8 e7 Kd7 e8N Ke6 Rd1 a1R Rd5 Ra4 Nd6 Qe8 Nf5 Qf7+ Kh8 Bd7 Nce7 Bb5 Rh1 Bd3 Rf1 Bb1 Rf2 Qe8+ Kh7 Qb5 Rf1 Qc4 Rh1 Qa2 Rg1 Kf7 e6+ Kf6 Nc8 Rb5 e7 Rba5 e8Q Rc5 Ng5 f3 Nb6 f2 Qg8 f1Q Rh1 Qf4 Ngf3 Nb5 Rf1 R8a5 Ra8 Na7 b8N Rc8 Nc6 Rb8 Qee8 Rc5 Nce7 Nb5 Ra6 Na7 N3h4 Rcc8 Rb5 Rc5 Rf3 Ke5 Rd3 Ke4 Rd5 Rc3 Nd4 Ke3 Qc6 Kd2 Nhf5 Kc1 Ndf3 Kb2 Qc4 Rc2 Qe4 Rc5 Ba3+
1bQB1B2/R3K3/6pr/1P1Rn2q/q1NP3n/1BB2P1Q/4k1bp/qQBq4 b - - 0 1 legal: proof: c4 b5 h4 a5 a4 e5 axb5 f5 g4 d5 gxf5 e4 h5 g6 h6 Ra6 d3 Rf6 Nc3 Rf7 Na2 Rg7 hxg7 Bd7 Nb4 Be6 cxd5 Bd7 d4 Bc8 Nd3 exd3 Kd2 Kf7 Kc3 Kf6 Kc4 c5 e4 h5 b4 a4 b6 d2 d6 Kg5 Kd5 Kf4 b5 c4 e5 h4 d7 c3 Ke6 c2 b7 a3 f6 h3 f7 a2 Nf3 Be7 f8B Rh6 Bc4 Ba3 Bb3 Nc6 b8B Ba6 Bbd6 Qa5 d8B Qa4 Bb4 Nge7 g8Q Bb7 Qh7 Nf5 Bc3 Nh4 Kd7 Kg4 e6 Bd6 e7 Bb8 e8Q Ne5+ Ke7 h2 Rg1+ Kf4 Rg5 Ke4 Qd7 Kd3 Qc8 Be4 Qe1 d1Q Nd2 Bg2 Nc4 Qh5 Qg1 Ke2 f3 Nd3 Rd5 Ne5 Rb1 a1Q Rb2 Qa5 Ra2 Qa8 Ra7 Qa4 Bf4 c1Q Qh1 Qd2 Qb1 Qd1 Bc1 Qa1 Qg8 Qa4 Qge6 Qa1 Qh3 Qa4 Rad7 Qa1 Rc7 Q8a4 Ra7
r4N1n/1b3Pn1/3N3n/4QBPQ/QPR4n/1qQ1rq1k/1p1QR1pN/1K6 b - - 0 1 legal: proof: d4 b5 g4 f5 a4 e5 dxe5 c5 axb5 g5 b3 c4 Bb2 c3 gxf5 cxb2 h4 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Qc7 Ra5 Qb6 Ra1 Qd8 Kd2 Kf7 c4 d5 Kc2 h5 e4 a5 f4 a4 e6+ Kg7 b6 g3 e7 h4 e8Q h3 e5 a3 e6 h2 b7 a2 e7 g2 c5 d4 f6+ Kh7 f5 Qd5 f7 Nh6 b4 Qf3 f6 Kg6 f8N+ Kf5 c6 Kg4 c7 Nd7 b8Q Ne5 Qd2 Nef7 Nc3 Bb7 Re1 a1N+ Kb1 d3 Re2 Nc2 Qa4 Nd4 e8Q Ndf5 Nb5 Ng7 Nd6 Rg8 Qe5 Nh8 c8Q+ Kh4 Qcc2 Kg4 Qdc3 d2 f7 d1Q+ Qc1 Qb3 Q1d2 Qf2 Nf3 Kh3 Rg1 h1N Nh2+ Ng3 Qd8 Qe3 Qdf6 N3f5 Qg6 Nh4 Qh5 Bf3 Re1 Be4+ Bd3 Qf3 Re2 Bb7 Rge1 Re8 Re4 Re7 R1e2 Re8 Rc4 Re6 Nd7 Ra8 Nf8 Ree8 Qd5 Re4 Qde5 Re3 Bf5+
4n1rQ/Bqb1P3/2QpBP1Q/kq5P/1pR1B2q/1K1N2n1/4r2B/4B1Nq b - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 e5 dxe5 b4 gxh5 Nc6 c4 Nb8 e4 f5 a4 Qg5 e6 Bb7 e5 Bc6 Ra3 Qd8 Re3 Bb5 Re4 fxe4 cxb5 Qe7 Qc2 Qh4 Qd1 Qd8 Kd2 g5 Kc2 c5 f4 g4 h4 g3 h6 d6 b6 g2 h7 e3 a6 e2 b7 e1Q a7 c4 a5 c3 a6 Qb6 e7 Kd7 e8Q+ Kc7 e6 Qa5 f5 Kb6 h5 Qd2+ Kb3 c2 e7 Qe2 Rh4 Qd5+ Rc4 Qd4 Bf4 c1Q Qc6+ Ka5 Bh2 Nh6 Nc3 Qh4 Qd2 Rg8 h8B Nd7 b8B Bg7 Na4 Nf6 Nc5 Ne8 Nd3 Bd4 Bg7 Be3 Bc3 Bb6 f6 Nf5 Qh6 Bc7 Be1 Qe5 Be2 Qb5 Bg4 Ng3 Be6 Qcf4 Kb2 Qf3 Kb3 Bb6 Bc7 Rc8 Bb8 Bc7 a8B Qfe4 a7 Qed5 Nh3 g1Q Bb7 Qgb6 Ng1 Qh1 a8Q+ Q6a6 Ba7 Qab6 Qd7 Q6a6 Be4 Qab6 Qd5 Qb7 Qd8 Ra8 Bd4 Ra6 Ba7 Rc6 Qa8 Rc5 Qc6 Re5 Bh7 Re2 Be4 Ng7 Qf8 Ne8 Qfg7 Qc5 Qhh8 Qcb5 Qgh6
kn3Qb1/1pKpn1qP/6Q1/R6B/q2PRr1B/1N1q4/q1PR4/4BBBr b - - 0 1 illegal: No proof kernel forced: wxLB
2k2Qn1/Pr3N1q/3qn2p/1pQP2n1/1B5r/NN1N1b2/3QRN1P/KB3n2 b - - 0 1 illegal: No possible last move
RN1kb2Q/3P4/3N2PK/Br1n1R2/4NR1P/1Q2pNn1/pr1b3r/r1r1N3 b - - 0 1 legal: proof: c4 g5 d4 b5 f4 d5 fxg5 Kd7 cxd5 b4 e4 b3 d6 Ke6 d7 Bh6 axb3 Kd6 b4 Bg7 b5 Bf8 g4 Ke6 g6 Kf6 d5 h5 d6 Kg7 g5 c6 Bg2 Qb6 Bh3 Qd4 Bg4 Qd5 exd5 hxg4 Ke2 f5 Ke3 a5 Kf4 c5 d8Q g3 b4 c4 d7 g2 d6 a4 h3 a3 b6 a2 b5 c3 b7 c2 b6 Nh6 Na3 Ra5 Nf3 g1R Bd2 c1R Nc2 Rg2 Nce1 Rb5 Ba5 Nc6 b8N Rgb2 b7 Nb4 Rf1 e6 Qb3 e5+ Kg3 e4 Kh4 e3 Kh5 f4 h4 Rh2 Qe8 Nd5 d8N Bd7 Nf7 Bc6 Qc8 Be8 d7 Bb4 Nd6 Kf8 Qcc3 Rg8 Qh8 Ke7 Na6 Bd2 b8N Rg7 Nc5 Nf5 Nce4 Ng3+ Kh6 Rf7 g7 Rf8 Nd4 f3 g8R f2 g6 Rf5 Rb1 Rb6 Rb2 Kd8 Ndf3 Re5 Rc2 Ra1 Rc4 Rf5 Rg1 f1R Rg2 Rg1 Rf2 Rgh1 Ng2 Rhc1 Nge1 Nc7 Rf8 Rfb5 Rf5 Nd5 Rc7 Rbc5 Ra7 R5c2 Ra8 Rb2 Nd4 Rc4 R2f4 Rcc1 Bb4 Rb7 Ndf3 Rb5 Ba5+
2R3r1/1N5Q/RK1RbR1n/4rP2/3P1p1n/QN1P2b1/npRnB3/k3rN2 b - - 0 1 legal: proof: f4 d5 e4 f5 exf5 a5 b4 g5 bxa5 d4 c3 Be6 cxd4 Bd7 f6 Bc8 h4 Nd7 g4 Ra7 h5 Ne5 f5 Nc6 Ba3 Nb8 Bd6 Ra8 Bf4 gxf4 g5 Qd5 Nf3 Qf7 Ng1 Qg6 hxg6 Be6 Rh3 Bd7 Rh1 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 b5+ Kb4 Kd5 a4 h5 g7 h4 f7 h3 a6 c5+ Ka5 e5 a7 h2 g6 e4 Ne2 Kc4 Qc1+ Kb3 d3 c4 Kb6 c3 a5 c2 a6 b4 Ra5 e3 Ra2 Nh6 g8R Be6 g7 Be7 f8R Nc6 Rf6 Na5 Rc8 Re8 Ng3 e2 g8Q e1N Qh7 Nf3 Be2 Nh4 Nf1 Rg8 Rg1 h1R Rgg6 Re8 Rc7 Rad8 a8R Rc8 a7 Nc4+ Kc6 Rb8 Rc8 Nd2 Ra6 Rg8 Rc7 Rbc8 Kb6 Rce8 Rac8 Bd8 a8N Rg1 Ka5 Ka2 Nb6 b3 Nc4 Ka1 Nd6 b2 Nb7 Be7 Qe1 c1N Kb6+ Na2 Rc2 Nb3 Qa5 Nd2 Qa3 Bb4 Ne3 Re1 Nf1 Bb3 Nc3 Re5 Na4 Be7 Nac5 Be6 Rff8 Nhf3 Rfd8 Bh4 Rd6 Bg3 Rf6 Nh4 Nb3+
2k1b1Q1/Q6b/2r1p3/n2Q4/RN2P2p/1Pbr1QNB/3RNP1n/Q1K1n1n1 b - - 0 1 legal: proof: c4 a5 a4 b5 g4 d5 cxd5 f5 axb5 g5 b3 a4 Bb2 a3 gxf5 axb2 h3 g4 h4 Qd6 Qc2 Qf4 Qd1 Qg5 hxg5 Ra2 Bh3 Ra3 Bf1 Ra8 d4 Kd7 Kd2 c5 e4 h5 d6 g3 g6 c4 b6 h4 g7 g2 d5 Ra2 b7 Ra6 f6 Nc6 b8Q Na5 f7 Rc6 Nc3 b1B Kc1 Bd3 Ra4 Nf6 g8Q Ng4 Nge2 g1N Ng3 Nh2 Nce2 Bg7 f8Q c3 Qf3 c2 Qb6 Bb5 Bh3+ e6 Qc5 Bc3 Qa7+ Bb7 Qg7+ Kd8 d7 Kc7 d8N+ Kc8 d6 Re8 Nf7 Rd8 Ne5 Rd7 Qd5 B7a6 Rc4 Ba4 Rd4 B6b5 Nd3 Rd8 Nb4 Rd7 Nf4 Bf1 Rd2 Bab5 Bf5 Bh3 Nfe2 Bg4 Qgd4 Bh5 Bh3 Bg6 Qdb6 Bh7 Qba6+ Nb7 Qa1 Na5 Qfd3 Rf7 Qde3 Rf3 Qf4 Rd3 Qff7 Rc4 Qf3 Be8 d7+ Kd8 Qae3 Rc6 Qed4 Kc7 d8Q+ Kb7 Q8g5 Kc8 Qg8 Kb7 Qa7+ Kc8 Qb2 Be5 Qc3 Bh8 Kb2 Bd4 Qfh5 Ngf3 Rc1 Ne1 Ra1 Be5 Ra4 c1N Ng1 Bh8 Qf3 Ne2 Kb1 Bg7 Qa1 Bc3 Qff7 Nd4 Kc1 Ndf3 N1e2 Ng1 Qf3
2r5/1P1rBRnp/N1b2KQP/1r2N2b/p1B2B2/1Nk5/Pb2Q3/N1N1r2r b - - 0 2 legal: proof: c4 a5 b4 e5 d4 b5 dxe5 f5 cxb5 a4 e6 Qg5 Ba3 Qe3 Bb2 Qb6 Bc1 Qa5 bxa5 Ke7 Bh6 Kd8 Bc1 Ke8 e4 Bb4+ Nd2 Ke7 g4 Ba6 f4 Kf8 e5 Ra7 Rb1 Bc5 Rb4 Ra8 Re4 fxe4 f5 Ke8 Bh3 Bc8 Bf1 Bf8 f6 Nc6 Nc4 Nd4 Nd2 Nf5 gxf5 Bd6 Kf2 Ba3 Ke1 Bf8 Ke2 d5 Ke3 c5 Kf4 e3 Kg5 e2 h4 e1R f7+ Ke7 b6 c4 a6 g6 b7 c3 a7 d4 f6+ Kd8 h5 Kc7 e7 Kb6 e8Q Ka5 e6 Kb4 h6 c2 e7 d3 Nb3 d2 Bc4 Bh3 Qe2 d1B Na1 Kc3 Bf4 Bg7 f8N c1R f7 Bg2 Ne6 Rb1 f8B Nf6 Nd4 Rd8 a8N Rd7 Nc7 Bc6 Na6 Nh5 Ndb3 Be5 Qf7 Ng7 e8N Bd4 B8d6 Rf8 Nf6 Rc8 Be7 Be5 Qg2 Bh5 Ng4 Bd4 Ne5 Rb2 Nd2 Rb5 Kf6 g5 Qg6 g4 Ndb3 g3 Qe2 g2 Rh4 Bc5 Rg4 Ba3 Rg5 Bb2 Rf5 Rh8 Nc1 Rc8 Ngf3 g1R Nd2 Rh1 Ndb3 Ref1 Kg5 Rfd1 Rf7 Rde1 Kf6
2B1QrN1/B1Nr1Bb1/8/BQ1p4/P5bk/B2rpr1n/1P2P3/bK1R1Qb1 b - - 0 1 illegal: No proof kernel
1R5B/Q2r1Bb1/KPrR2n1/1R3Rp1/b2N1qp1/1B1k2nQ/p3bP1P/1R6 b - - 0 1 legal: proof: g4 f5 d4 b5 e4 c5 dxc5 h6 a4 Rh7 axb5 Qc7 e5 Qd6 gxf5 Qa6 Nd2 Rh8 Ne4 Qf6 Ng5 hxg5 exf6 g4 Ke2 Kf7 Kd3 d5 b4 a5 c4 a4 b6 g6 b7 d4 c6 a3 b5 e6 c7 a2 c5 Ra7 Kc4 d3 c6 d2 b6 Rh7 Kb5 Rg7 Bb2 Na6 b8R Bd7 c8B Rc7 Bc4 Ne7 Ne2 Nc5 Rb1 Ne4 Nd4 Ng3 Qa4 d1B Ka6 Be2 Rhd1 Rh7 Rd3 Bg7 Bb3 Rh6 Bc3 Rb7 c7 g5 Qa5 Be8 Bd7 Ng6 c8Q Rc7 Bc6 Rb7 Bcd5 Ba4 Qh8 Rd7 Bdc4 Rd5 Rd2 e5 Rdb2 e4 Rd8 e3 Rd6 Bc6 Qa3 Bd7 Qb8 Ba4 Qa7+ Kg8 f7+ Kh7 Re6 Rd7 f8R Ne7 f6 Kg6 Nc6 Kf5 f7 Rg6 Rd6 Ke4 Nd4 Re6 Rb8 Ng6 f8R Rf6 Rd5 Rfd6 Rb5 Rc6 Bf7 Kd3 Rfd8 Bd1 Rf5 e2 Rc2 e1Q Rcb2 Rd5 Rd6 Qe3 Re2 Qf4 Ree5 Be2 Bb2 Rdc5 Bc3 Rc4 Rb5 R4c5 Qc1 Rc7 Qf1 R5c6 Qh3 Rd7 Bd2 Qf3 Bf4 Qe4 Be5 Qf4 Bf6 Bh6 Bh8 Bf8 Ra5 Bg7 Rab5
2B5/B2rk1pQ/1r3Pb1/1RqQp2R/BbpnP2Q/3P2KQ/1r3N2/n2Q4 b - - 0 1 legal: proof: g4 e5 c4 b5 a4 d5 cxd5 h6 axb5 Bb7 f4 Ba3 f5 Bf8 Nc3 Qe7 Ne4 Qe6 fxe6 Bc8 g5 h5 Nf2 Nc6 Ng4 hxg4 Bh3 Nb8 Bg2 Nd7 Bf1 Nb8 Kf2 c5 h4 a5 b4 c4 e4 a4 b6 a3 h5 a2 d3 Nf6 d6 Nc6 b7 Be7 b8Q Ra6 b5 Bf8 h6 Rg8 e7 Nd5 h7 Na5 h8Q Nc3 b6 Ra7 b7 Ra6 Bh3 Nb1 Kg3 Nd2 Qh4 Nab3 Rb1 Nf3 Be3 a1R Ba7 R1a2 Qa8 Na1 b8Q Re2 Qd5 Nd4 Rb5 Rb2 Qba8 Kd7 e8B+ Kd8 d7 Rb6 Qac6 Bb4 Qg6 Ke7 Qf5 Rh8 Rh2 Rhh6 Qh7 Rhd6 d8Q+ Kf8 Q7h5 Bf5 Qc8 Bg6 Qh7 Rd8 Bf1 Rd7 Nh3 Ke7 Nf2 Re2 Bh3 Rb2 Kg2 g3 Bg4 Re2 Kh3 g2 Kg3 Rb2 Rh1 Rdd6 Qf5 Rd8 Qff3 Rdd6 Bc8 g1Q+ Qg2 Rd7 Rh2 Qe1 Qgh3 Qg1+ Rg2 Bc5 Q4h6 Rdd6 Qh2 Rd7 Ng4 Kd8 Ra5 Rdd6 Ba4 Nc6 Rb5 Rd7 Q6h5 Qd4 Nf2 Ke7 Rg1 Bb4 Rh1 Qc5 Qg2 Rd6 Rh4 Nd4 Qh3 Rd8 Q5g4 Rdd6 Rh5 Rd7 Qgh4 f5 gxf6+
4r2B/1QQB1pbn/PN2bk1b/1q5n/1P1p1B2/3NpB1P/2R5/2K2QrB b - - 0 1 illegal: No proof kernel
2b3Qn/3p1RNB/3k1Kb1/Nrq1rP2/3P2N1/P1p4n/3p4/RQr2QNN b - - 0 1 legal: proof: e4 e5 g4 b5 b4 f5 exf5 h5 gxh5 a5 bxa5 e4 c3 b4 d3 e3 Bd2 b3 Ke2 Bb4 cxb4 exd2 Kf3 Ke7 Kg4 g5 h4 c5 f4 c4 a6 b2 a7 Qf8 h6 Qf7 h5 Nc6 b5 Qd5 f6+ Ke6 f7 Nd4 f8N+ Ke7 b6 Rh7 a3 Qb5 b7 Qd5 b8N Qc5 Nc3 b1B Ne6 Bb7 Ng7 Be4 Nc6+ Kd6 Na5 Qc7 Nce2 c3 Ng3 Nb5 d4 Rf8 a8Q Rb8 Bd3 Qc5 Qf1 Nc7 Qb7 Nd5 Qb2 Bc2 Qbb1 Nge7 Rh2 Bg6 Nh1 Rb5 Rf2 Rh8 h7 Re8 Be4 Bd3 h8N Bc4 h6 Be2+ Kh3 g4+ Kh4 g3 Kg5 g2 h7 Bf3 Bc2 Bfe4 Re2 Bd3 Re5 Be2 Rf5 Bd3 Rf7 Bc4 f5 Nf4 Bb3 Nh3+ Kf6 Bd5 Ba2 Bb7 Bc4 Bc8 Bb3 Nc6 Ba2 Nd8 Bc4 Bh5 Ng6 Re3 Ne5 Bg6 Ng4 Re5 Re7 Nf7 h8Q Bh5 Qe8 Nh8 Bg8 Bf7 Bh7 Bg6 Nf3 g1R Qg8 Re4 Rf7 Re5 Qc4 Rf1 Ng1 Rc1 Qf1
NRR4q/1Ppb1BR1/3r2Pn/krp2rb1/1Qp3PR/2N4Q/3nR1Q1/K7 b - - 0 1 illegal: Other
4N1kN/1n6/p1NNqr2/4Qp2/1KP2BRb/P2qr1p1/1PBNQ3/n4B1b b - - 0 1 legal: proof: g4 b5 f4 e5 fxe5 c5 c4 d5 cxb5 h5 gxh5 d4 d3 c4 Nd2 Bf5 Nb3 Rh7 Bd2 Bc8 Bb4 Rh8 Ba3 Nd7 Rc1 Nb8 Rc3 dxc3 dxc4 Qd5 Qd4 Qd6 Qd1 Qd8 h4 f5 e4 Kf7 b6 g5 h6 g4 b7 g3 h5 a6 h7 c2 e6+ Kg7 h6+ Kg6 e7 Kf7 e8N c1Q e5 Nd7 b8N Qa1 Kd2 Qc7 Kc3 Ne7 e6+ Kg6 Qe2 Qd6 Nh3 Nc5 Nd2 Qe1 Kb4 Bb7 Nf2 Qd3 Ne4 Nc8 e7 Kf7 Nc6 Nb3 Rh4 Nd6 Rg4 Rg8 h8Q Na1 h7 Rg6 Qd4 Rf6 Qe5 Bg7 h8N+ Kg8 Nb8 Bd5 Nc6 Nb7 N4d6 Bg2 Nc7 Bh1 e8B Rd8 Bh5 Rd7 Nce8 Re7 Bf7+ Kh7 Bd5 Ree6 Be4 Kg8 Rh4 Bh6 Rf4 Bg5 Rg4 Qe3 Bc2 Qd3 Ka4 Re7 Bc5 Ree6 a3 Re7 Be3 Ree6 Ng6 Bh4 Bf4 Re7 Kb4 Ree6 Qf2 Qee4 Qe2 Qed5 Qd4 Re3 Qe5 Qe6 Nh8+
NqQ1K1N1/2B2pb1/b2NPrnn/q1R5/4PBB1/n5p1/3PNpNk/2Q5 b - - 0 1 legal: proof: b4 e5 g4 h5 gxh5 d5 c4 b5 cxd5 e4 a4 e3 axb5 Nh6 f3 Ng8 Ra5 Nd7 Ra4 Nb8 f4 a5 Ra3 Na6 Rc3 Bg4 Rc6 Nb8 Rf6 Ra6 Rf5 Re6 Rf6 Re5 fxe5 Qe7 Rf2 Bc8 Qa4 exf2+ Kd1 Nh6 e4 Qd6 Ke2 Qd8 Qd1 Ng8 Kd3 Kd7 Kc4 g5 h4 c5 e6+ Kd6 h6 Ke5 h5 Kf4 b6 Kg3 Kb5 g4 h7 c4 b7 c3 h6 a4 d6 c2 d7 a3 Be2 a2 Rh5 a1Q Ba3 c1N Nh3 Bg7 Nc3 Qe7 d8N Qf8 Nf4 Nf6 Ng2 Nd3 Qc1 Rg8 h8N Nh7 Ng6 Nc6 b8N Be5 Nb7 Qe8 Ne7 Bc7 Na6 Nf8 h7 Rg7 h8Q Bd6 Nc7 Bf4 Na8 Nb2 Kc5 Rg6 b5 Bh6 Kd6 Bg7 b6 Qa2 Bc5 Rf6 Be3 Qa3+ Rc5 Ng6 Kc7 Qa6 Nd6 Nc4 b7 Nd4 b8B Nf5 Bd1 Nh6 Bf4+ Kh3 Qg8 g3 Bg4+ Kh2 Ne2 Qeb5 Kd8 Qaa5+ Bc7 Qb8 Qf8 Na3 Ng8 Ba6+ Kd7 Nf5 Qc8 Nh6 Ke8
1n5Q/p2Qb1N1/6Pp/r1R2bbp/3nPP1B/3BK2B/1r3r1Q/2NBk2B b - - 0 1 illegal: No proof kernel
N1B3BN/Q1b1Q1p1/6k1/1P1bPqn1/n3p2r/2BR1Bbb/1pPB4/1K1N4 b - - 0 1 legal: proof: b4 b5 e4 e5 g4 h5 gxh5 f5 d4 a5 a4 c5 bxc5 b4 Ra3 Ra6 Re3 Ra7 dxe5 Bd6 e6 Bf8 e5 Rb7 Re4 Rb5 axb5 fxe4 Kd2 d5 h4 b3 f4 d4 f5 a4 h6 a3 h5 a2 h7 a1B f6 d3 f7+ Ke7 h6 Qb6 c6 Nd7 c7 Ndf6 Nh3 Qc5 Nf2 Qd5 Na3 Qb7 Nc4 Bd4 Rh3 Nd7 Be2 Qc6 Qg1 Ba6 c8B Bb7 Nd1 Nb6 Bf3 Na4 Nb6 Qd7 Na8 Bd5 Bb2 Bb6 Kc1 d2+ Kb1 Bf2 Bc3 b2 Rg3 Be1 Qa7 Nf6 Rh3 Rg8 h8N Nh7 Rg3 Ng5 h7 Bf2 Be2 Be1 Rd3 Bh4 Bf3 Bg3 Nf2 d1B Bd2 Be2 Nd1 Bf1 Bc3 Kd8 Bd2 Bd6 f8B Bb8 Bfb4 Ke8 e7 Bh3 Bbc3 Qf5 Ng6 Kf7 h8Q Re8 Qh4 Rh8 e8B+ Kg8 Bed7 Bc7 Be8 Rh5 Bf7+ Kh7 Bg8+ Kh6 Qf4 Rh4 Nh8 Qe6 Qf8 Qf5 Bge6 Kh7 Qe7 Kh6 Bf7 Kh7 Bg8+ Kh6 Nf7+ Kg6 Nh8+
1nRB4/1K3QBN/1pr3rr/PBB3BP/2Nb4/1p4p1/2N1b1P1/2n1rQ1k b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 a5 cxd5 h5 Qxh5+ Kd7 b4 a4 b5 Ra7 Qh7 Ke8 a3 Nf6 Ra2 Ra5 Rb2 Ng8 Rb3 axb3 a4 Ra8 a5 Qd7 Bb2 Qd6 Bc1 Qa6 bxa6 Be6 Ba3 Bd7 Bc1 Bc8 Ke2 Kd7 Kd3 Kd6 Kd4 g5 h4 c6 f4 b6 a7 e6 f6 g4 h5 g3 f7 Ne7 f5 Rg8 f6 Rg5 Nf3 Bb7 Ne5 Rg8 Bb5 Ng6 Bb2 Bg7 f8N Nf4 f7 Nd3 Na3 Ba6 Rc1 c5+ Kc4 Bf6 Nc2 Rg6 Bc3 Rh6 Qf5 Bh8 Nh7 Rg6 Qf1 Rh6 Ng4 e5 Nge3 e4 Bb4 Ke5 f8B Bf6 d6 Rg6 d7 Bg7 Rb1 Nc1 d8B Bh8 Qf7 Bf6 d4+ Kf4 Kd5 c4 Bbc5 c3 Nc4 e3 Bde7 e2 Bg7 e1R Kd6 Ke4 d5 Bd4+ Kc7 Kd3 d6 Ke2 Bef6 Kf1 d7 Kg1 d8B Kh1 Bg5 Rh6 Nb4 c2 Ra1 Ne2 Rd1 c1R Nc2 Bb7 Rd3 Bf3 Re3 Rg6 Re8 Bg4 Kb7 Rh6 N2a3 Rc3 Rg8 Nc1 Nc2 Be2 Rh8 Re3 Re8 Ree6 Rh8 Rc6 Rg8 Na6 Rh8 Rac8 a8Q Rcg6 Qb8 Rcc6 Qbf4 Rg1 Qf1 Nb8 Bde7 Bd3 Rc8 Be2 Q1f2 Rf1 Bd8 Re1 Qf1+
N1N3Kb/b1NBN1pQ/1nR1P1r1/n1P1n2p/2Qk1Np1/6nP/1r2Q3/1R6 b - - 0 1 illegal: Other
1Q4R1/1n4pN/pk3PP1/3q2Nq/1RRr2pB/P4Rr1/Q3Q3/q2nqR1K b - - 1 2 legal: proof: e4 d5 c4 c5 cxd5 h5 b4 c4 g4 c3 g5 c2 e5 Nf6 Be2 Ng8 Bg4 hxg4 Ba3 c1Q Bb2 Qcc7 Bc1 Qc5 bxc5 Be6 Nh3 Bf5 Ng1 Bc8 f3 Bf5 Ba3 Be4 Bb2 f5 Ba3 e6 Qc1 Be7 Qd1 Bf6 exf6 e5 Bc1 Bd3 Qc2 e4 Qb3 e3 Qd1 Be4 fxe4 Rh6 Qc2 Rh5 Qd1 Rh8 Kf1 Kd7 Kg2 Kc7 d4 b5 h4 f4 h5 b4 d6+ Kb7 d5 b3 h6 e2 c6+ Ka6 d7 e1Q e5 b2 g6 Qda5 d8Q Qe4+ Nf3 Qae1 h7 Ne7 d6 Ng8 e6 Ne7 c7 Nec6 c8R Qf5 d7 Ne7 Qd2 Qfe5 Nc3 b1Q Ne4 Rg8 h8R Nbc6 R8h3 Qd3 Neg5 Qde4 Rf1 Nd5 e7 Nc3 e8Q Na5 Nh7 Nd1 Rc4 Qh5 Qb8 Qed5 d8R Nb7 Kh1 Kb6 Qee2 a6 Qc2 Re8 Bd2 Re3 Rg8 Rd3 Be3+ Rd4 Bf2 Ra7 Bh4 Ra8 Qbe5 Re8 Qb8 Ree4 Nfg5 f3 Qcd2 f2 Rf3 Re3 a3 Qe4 Ra4 Qd5 Rc1 Red3 Rcc4 Re3 Rg1 f1Q Qa2 Qe5 Rf5 Rg3 Rf2 Qd5+ Rf3 Qff2 Rf1 Qe3 Qc8 Qc1 Qb8 Qa1 Rab4+
1k1B2q1/N1Q4N/3PRp1Q/qbP1nr2/rp1pQ3/b4N1P/K4p2/4NN1B b - - 0 1 illegal: No proof kernel
2N1Q1b1/1pBB3R/nqp2P2/kpp3KP/4p1n1/P4BN1/4N1r1/3BQ1rB b - - 0 1 illegal: Other
q3B1n1/Q4NR1/KP1r1p2/1r2PqN1/3p2Nk/1pR1R1pN/3Q2Pp/2n4N b - - 0 1 legal: proof: f4 b5 a4 g5 axb5 e5 fxe5 c5 h4 g4 Rh2 Be7 Rh1 Bg5 hxg5 Qc7 Ra4 Qa5 Ra1 Qd8 c4 Nc6 b4 Qa5 b6 Nb8 b5 Qc3 Ba3 Bb7 Bb4 cxb4 Ra5 Qd3 Ra1 Qg6 d3 Bd5 c5 Bc4 dxc4 Qf6 Qd4 Qe7 Qd1 Qd8 Kd2 Ke7 Kd3 h5 e4 d5 e6 a5 c6 h4 e5 a4 c7 f6 c8R b3 b7 a3 g6 g3 c5 a2 c6 h3 b6 h2 g7 d4 Kc4 Rh3 Kb5 Rh6 c7 Na6 b8Q Rg6 Nd2 Qf8 Ne4 Rg4 Nh3 Ra7 Neg5 Rh4 Qd2 Ra8 Qa7 Qf7 Bc4 Rh7 Rhe1 Qf8 Re3 Nc5 Bf1 Nb7 Ka6 Rh8 Bb5 Qf7 Be8 Qg6 Rc1 Qf5 Rcc3 Rh7 Rd8 Rh8 Rd5 a1Q+ Ra5 Nh6 g8N+ Kf8 c8N Kg7 e7 Nc5+ Kb5 Qa2 Nd6 Nd3 Ndf7 Kg6 Ka6 Kh5 Ra3 Nc1 Ra4 Ng4 Ngh6 Kh4 Ra5 Rc8 Ra4 Rc5 Ra3 Nf2 Ng4 Rb5 Ra4 Qab1 Rac4 Qbe4 Rc7 Qef3 Bd7 Q3e4 e8N Qa8 Ned6 Rd8 Be8 Rd7 Nde4 Rd6 Ngh6 Ng4 Nef2 Qff3 Nh1 Qf5 Re1 Ne3 Rd7 Nd5 Ng4 Ne7 Ree3 Ng8 Nd8 Qb8 Rg7 Qa8 Ndf7
n3K3/1R3R2/RpNN2N1/PPkq1r1b/P6r/1Q1rb1Q1/1n1N2qN/1b1n1B2 b - - 0 1 illegal: No proof kernel
Nq2k2q/b1pb1rBn/1B2PBnP/2PNrQ2/1K4B1/2N1r2n/1B4qR/5Q2 b - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 f5 gxf5 h5 b4 Ne7 a4 Nbc6 axb5 Nb8 Ra3 Ng8 Rg3 Qe7 Rg6 Qd8 Rg4 hxg4 Kd2 g5 Kc3 a5 h4 d5 e4 g3 f4 a4 h5 a3 b6 g2 b5 g4 e6 a2 e5 a1Q+ Bb2 g3 h6 Ra5 f6 Ra6 f5 Qe7 b7 Qa4 b6 Qd6 e7 Ra7 f7+ Kd7 f6 Ra6 Rh2 Nc6 b8B Ra5 b7 Qb5 Ne2 g1Q Ba7 g2 Bb6 Rh7 Nf4 Qe6 e8N Nce7 b8B Ng6 Nd6 Qe8 Nc4 Bc5 f8B Rf7 e6+ Kd8 Qh5 Bd7 Qf5 Qf2 Bg7 g1N Bd3 Nh3 B8a7 Qg2 Be2 Bg1 Bd4 Qb8 Nb6 Be3 Be5 d4+ Kb4 d3 c4 d2 Nd5 d1R Nbc3 Re1 Bg4 Bf2 Bd4 Re3 Be5 Rc5 Bd4 Qf8 Be5 Ke8 Bd4 Bb5 Na8 Bd7+ Bb6 N8e7 Nf4 Rce5 Nfd5 Bg1 Qf1 Qh8 Qf5 Nf8 Qf1 Neg6 Qf5 Re7 f7+ Kd8 Bf6 Nh7 f8Q+ Be8 Qf7 Bd7 Qf1 Bf2 Bg7 Bg1 Q7f5 Rf7 Bc5 Ke8 Be7 Re2 Bh4 Bd4 Be7 R2e3 Bef6 Bb5 Ba5 Ba7 c5 Bd7+ Bb6
rq3b1N/3b4/QNpNPr2/7N/2Pk2b1/q1q1RBQn/3Q2PN/1K1nr2R b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bd6 hxg5 Bf8 e4 f6 e6 Nh6 e7 Kf7 e5 Kg6 e6 Ng8 Bf4 Bh6 Bh2 Bf8 Be5 fxe5 Kd2 Kf5 Kc1 Ke4 e8N h5 f4 d5 b4 a5 c4 h4 g6 h3 f5 a4 b6 c6 b5 h2 g7 a3 b7 a2 b6 d4 f6 d3 f7 d2+ Kc2 Na6 b8Q Nh6 g8N Bd7 b7 Nc7 Kb2 Kd4 Nc3 e4 Qc8 e3 b8Q e2 Ngf6 e1R Be2 Ng4 Nd6 Nf2 Qa6 Nd5 Na4 Nf4 Nb6 Rh6 Nh5 N4h3 Bf3 Rf6 Qe2 d1B Qd2+ Ke5 Rb1 a1Q+ Kc1 Qa2 Rb3 Qa3+ Kb1 Qc8 Qc7 Qb8 Re3+ Ne4 Qf2 Kd4 Qg3 Nef2 Qd8 Be7 f8N Qc3 Nh7 Bf8 Ng5 Qa3 Ngf7 Be2+ Kc2 Nd1 Nh8 Qc3+ Kb1 Qa3 Bd5 Bg4 Nf3+ Kc5 Rf1 h1Q Nh2 Kd4 Be4 Qg1 Bf3 Qf2 Rh1 Qd2 Qb5 Qdc3 Qa6 Rf7 Qg5 Rf6 Qga5 Qc5 Qa2 Q5a3 Qd2+
b3B3/2Kb2PR/1QBnP1r1/1N1pR2q/QR1Pn2b/8/r1n2k1B/1R2brR1 b - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 b5 a4 Bh6 axb5 Bf8 hxg5 c6 b4 Qe7 b6 Qf6 Nc3 Qd8 b5 c5 Na2 Qc7 Nb4 cxb4 Bb2 Qd8 Ba3 Be7 Bc1 Bf8 Kf2 Ke7 Ke3 Ke6 Kf4 Kd5 e4+ Kd4 g4 a5 c4 f5 c5 h5 g6 a4 g5 b3 g7 h4 b7 h3 e6 b2 c6 b1N b6 a3 g6 h2 e5 a2 e7 Rh6 e8B Bb4 e6 Nc3 c7 Ne7 g8R Ne4 Bg2 Na6 Rb1 a1B b8R d6 g7 Bd7 c8R Rg6 b7 Qa5 Rc5 Nc8 Rh8 Bbc3 d3 Be1 Re5 Nb4 Rh7 Nc2 Qg4 Qd5 Bf3 Ra2 Ne2+ Kc5 Rg1 h1B Nc3 Kd4 Bg2 Bb2 Qd1 Bh4 Bf3 Ba3 Bd2 Bb4 Be1 Qc5 Bg3 Qb5 Bh2 Qd5 Na4 Bbe1 Nc3 Bg2 Ra8 Qa5 b8Q Bh1 Bg2 Qd5 Qb6+ Qc5 Kf3 f4 Ra4+ Nb4 Qb3 Ng3 Ra5 Nc2 Rb5 Ra3 Rg5 Ra2 Kg4 Ke3 d4 f3 Qa4 f2 R5b4 f1R Nb5 Kf2 Ba8 Bd5 Kf4 Ne4 Rgh5 Qc4 Rf5 Qe2 Rfg5 Bb7 Rgh5 d5 Ke5 Ba6 Bc6 Bb7 Rhg5 Ba8 R5g4 Ng5+ Re4 Qh5 Re3 Na7 Kd6 Nc8+ Kc7 Nd6 Re5 Nge4 Qb3 Bc8 Qa3 Bd7 Qa4
1r3r2/B4bNr/1PN2qkr/q2R3p/4B1Qn/BK3B1P/1P3bn1/rB2Q1Q1 b - - 0 1 illegal: No possible last move
1R1r1Q1r/4Q1K1/b1k4p/1qbPrRRP/b2BNP2/2q3n1/1B2r1B1/B2n2B1 b - - 0 1 illegal: No possible last move, all moves rejected
2Q1b3/Q3q1np/K6k/P1QBR2P/5NR1/R3brn1/3qPBR1/1b1r1rbR b - - 0 1 legal: proof: c4 a5 b4 e5 bxa5 g5 f4 d5 fxe5 Bd7 Nc3 Ba3 cxd5 Ra7 Na4 Bc8 Nc5 Ra8 Ne6 Bf8 Nf4 gxf4 h4 c5 g4 f5 a4 Kf7 d4 Kg6 Kd2 b5 Kd3 b4 Kc4 b3 Kb5 c4 e6 c3 d6 b2 h5+ Kh6 d7 b1B d5 c2 a6 Nf6 e7 Ne8 a5 Rg8 d6 Ng7 e8R Qe7 d8Q Ra7 d7 Nc6 Be3 c1B Bf2 f3 Qd4 f4 Bg2 Be3 Qc5 Nd4+ Kb6 Ndf5 Ra3 Rh8 Nh3 Ng3 Kb5 Bb7 Qdc8 Bc6+ Kb6 Rg8 d8R Rd7 a7 Rd1 a8Q Rh8 Ka6 Rg8 Be1 f2 Rd4 f1Q Bf2 f3 Qaa7 Qe1 Nf4 Qd2 Re4 Rh8 Re5 Ba4 Rd8 Be8 Rd4 Qd8 Rc4 Bd6 Rce4 Rf8 Rb4 Qe7 Rbe4 Ne6 g5+ Kg7 Nd3 Nf5 g6 Rf6 Rd5 Bdf4 Bh4 f2 Rde5 f1R Bf2 Bh2 Rf4 Bg1 Bd5 Kh6 g7 Rf8 g8R Rf7 Rg3 Neg7 Rg2 Ng3 Rg4 Rf3 Nf4
1QBBbRn1/3RB1q1/1b4Q1/b1q1b1Bp/3nP1B1/5P1P/RrnN4/2rk3K b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 f4 Nc3 e6 Nd5 f3 gxf3 exd5 f4 d4 f5 Qf6 Qd2 Qg5 Qd1 Qd8 b4 Kf7 c4 Kf6 e4 Ke5 f3 h5 Kf2 a5 Kg2 g5 h3 d5 b6 d3 b5 Kd4 c6 Kc3 b7 g4 c5 g3 c7 d4 c6 d2 f6 a4 b6 a3 f7 a2 Qe2 Kc2 Qa6 d1Q Bh6 d3 Bd2 Qd4 Bg5 d2 Ne2 Qc1 Nc3 d1N Bc4 Bd7 c8B Be8 c7 Nc6 b8B Bb4 f8B Ba5 b7 Qg7 Nb1 Nd4 Qg6 Ra6 Bb5 Rb6 Bbd7 Rb2 Bg4 Rh6 Re1 Ne3+ Kh1 Rh7 Nd2 g2+ Kg1 Rh6 Rd1 Rh8 Kh2 g1B+ Kh1 Rh6 Bfe7 Rh7 Rb1 a1B Ba7 Rh6 b8Q Rh7 Bb6 Rh6 Qh7 Rc6 Qg6 Rc3 Rf1 Rc6 Rf2 Kd1 Rh2 Nec2 Re2 Ra2 Rb5 Qa3 Rd5 Qc5 Rd7 Be3 Ba6 Rb2 c8R Bf2 Bbd8 Na3 Rcc7 Ne6 Bgf6 Qb4 Bc5 Rc2 Rf7 Qc3 Bce7 Bfb6 Rf8 Qb4 Ra7 Be5 Nb1 Nd4 Bg5 Rd2 Rf2 Rc1 Rd7 Qc5 Bc8 Ra2 Rb2 Nc2 Nd2 Ke1 Rb1 Kd1 Ra1 Rb2 Ra2
RNbq3Q/1bbNn2q/n1B2KNp/2r5/4qPQ1/4Q2P/r1NPRN2/3kq3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f3 g5 b3 g4 Bb2 g3 Ke2 Bb7 Bd4 Bc8 Bf2 gxf2 Kd3 Kd7 Ke4 Kd6 g4 Kc5 Ke5 Kb4 g5 c5 d6 a5 f4 a4 g6 e6 g7 h6 f6 c4 f7 c3 d7 c2 b6 c1Q b7 a3 Nh3 a2 Na3 Ne7 g8Q Qc6 Qgg4 Qe4+ Kf6 e5 Bg2 f1B Nf2 Ba6 h3 Qh7 Re1 e4 Qdf3 e3 Re2 Rg8 Qfg3 Rg5 Bc6 Rc5 Q3f3 Bd3 Qfg3 Na6 b8N Be4 Nc2+ Ka5 Ne1 Kb4 Qg1 Ka3 b4 Kb2 b5 Bf3 b6 Bg7+ Ke6 Be5 f8N Bc7 b7 Bg2 Ng6 Be4 Rd1 a1Q Kf6 Qa4 Nc2 Bh1 Q1g3 Qe4 Ra1 Bf3 Ra4 Kc1 Ra2 Qe8 d8Q Ra7 Qd5 Qd8 Nd7 Ra8 b8N Bg2 Nd3+ Kd1 Qg8 Bh1 Qh8 Bg2 Rf2+ e2 Qe3 Bf3 Ra3 e1Q Re2 Nb4 Rc3 Ra2 Ra3 Bh1 Ra8 Na6 Ba4 Qb4 Bb5 Bhb7 Bc6 Qe4 Nf2+
7K/1NN3Bp/N1nB3n/bn3r2/2Q1RB2/q1k1q1PP/n1B1PBQ1/br1b4 b - - 0 1 illegal: No possible last move
1nqQQn1K/2P4R/R1pqrP1k/8/4b1Bb/1Q4Q1/Q1P1nn2/B1N2qrB b - - 0 1 illegal: No proof kernel
2Nb1rq1/2q1R2p/2n2B1Q/k1Bq1nRB/3P2KB/3rP3/RQ1B3P/1br1r3 b - - 0 1 illegal: No possible last move
NnN4B/3p2n1/kP1K3b/5qNr/P1b1N1Q1/3Br2Q/1nBPb1q1/1NR3b1 b - - 0 1 legal: proof: b4 b5 c4 a5 a4 g5 h4 f5 hxg5 Na6 e4 Nf6 exf5 Nb8 Ra3 Bb7 Rb3 Ba6 cxb5 Bc8 b6 Ng8 b5 Nf6 Rb2 Ng8 Rb4 axb4 Ke2 e5 Kd3 c5 Kc4 h5 Kd5 h4 f4 b3 g4 h3 f6 h2 f7+ Ke7 f5 e4 g6 e3 g7 b2 g5 e2 b7 e1B b6 c4 g6 c3 Qg4 c2 Bd3 Rh4 Nh3 Rh5 Nf2 Nh6 Ne4 Bf2 g8B Bg1 g7 Qe8 Qh3 Kd8 Bh7 Qe7 g8Q Qg5 Qg6 Qg2 Qgg4 Bg7 f8N Ra5+ Kd6 Re5 Nf2 Re3 Ng6 Bf8+ Ne7 Bg7 f6 Nf5+ Kc5 Bh6 f7 Ng7+ Bhf5 Nc6 b8N Ba6 f8N Bc4 Na6 Nb8 Nc3 b1Q Nfe4 Qb5+ Kd6 Qa5 Bh7 Qf5 Bb2 c1N Bc2 Be2 Nb1 Nd3 Bc3 Nb2 Nc7 Bc4 Na8 Be2 Bg6 Bc4 Nh7 Be2 Nd5 Kc8 Ne7+ Kb7 Nhg5 Ka6 Bh7 Bf2 Rc1 h1B Nc8 Bg1 Nf6 Qg3+ Be5 Bd5 Nfe4 Bdc4 Bg6 Qg2 Bd4 Ne6 Bh8 Ng7 Nf2 Qff3 Bgd3 Qf5 Nfe4
2nQB3/4bpN1/4Pk2/1brR3K/1RNNN3/b2PnQ2/1qbr1PbQ/1bN5 b - - 0 1 illegal: No possible last move
1Q5b/n1Q1R2N/r2Nb2n/QbQP1q1k/2p2Rrb/P1P2Q1K/1B4R1/1r4r1 b - - 0 1 legal: proof: e4 d5 exd5 a5 f4 g5 b4 Qd7 bxa5 Qd8 g4 h5 Bh3 Bh6 fxg5 Qd6 g6 Bf8 g5 Qd8 Bg4 hxg4 Kf2 e5 Kg3 f5 d4 b5 h4 c5 d6 e4 c3 b4 a3 b3 h5 e3 g7 Kf7 d7 e2 h6 Kg6 a6 e1R h7 c4 a7 b2 d5 Nh6 g8R+ Bg7 Nd2 b1R Qf3 Qf6 d8Q Bd7 Rh4 Bb5 Nh3 Nc6 Ne4 f4+ Kh2 Qf5 Bb2 Red1 Nd6 g3+ Kg2 Rdc1 Qc7 Rf1 Rg4 Kh5 g6 Bf6 g7 Bh4 Rf8 Rg8 Ng5 Rg1+ Kh3 g2 h8Q Bg3 Nh7 Bh4 Qf2 f3 Qc5 f2 Re8 f1B Ra2 Be2 Re7 Bf3 Kh2 Be2 Rd4 Bg4 Rf4 Rae8 a8Q Na7 Qab8 Rc8 Qa5 Rc6 Qbd8 Ra6 Qdc7 Ra8 g8Q Rf8 Qe6 Rg8 Qe4 Bh3 Nb7 Rg4 Qhd8 Rge1 Qf3 g1B+ Kh1 Bgf2+ Kh2 Bd4 Qdb8 Rg1 Nd6 Bg7 Bc1 Bgf6 Rg2 Bh8 Bb2 Qe6 Qff2 Rg7 Qd7 Qf6 Qfe3 Be6 Qdc7 Qf5 Qf3+ Rg4 Kh3
4B2b/1q2RBnn/n2RpP1K/b2QB1PQ/4Pr2/n3B3/1Nbkr3/2b3QB b - - 0 1 legal: proof: h4 b5 d4 g5 hxg5 f5 a4 c5 axb5 Bb7 dxc5 Ba6 Nc3 Bc8 e4 f4 Nd5 Kf7 Ne3 fxe3 Qd2 Ke8 Qd6 Bh6 Qd1 Bf8 Ke2 Kf7 Kf3 Ke6 Kg4 Ke5 Kh5 Kf4 g4 d5 b4 a5 c4 a4 g6 e6 c6 d4 g7 a3 c7 d3 g5 h6 b6 d2 b5 e2 b7 e1B b6 a2 c5 Na6 b8B Be7 b7 Nb4 c6 Qd7 Bb2 Na6 Bd4 Ba3 Nf3 Bc1 Ne5 Nf6+ Kg6 h5 g8B h4 Bf7 h3 Nc4 h2 Qh5 d1N Bg2 Ne3 Nb2 Rd8 Kh6 Ba5 Rd1 Nh7 Bh1 Nc2 Rb1 a1B f3 Kg3 f4 Rf8 f5 Kf4 Rd3 Qd5 Rd2 Bd7 c8Q+ Qd6 c7 Qb6 Rd3 Ba4 Qd7 Na3 Qd5 Bc2 c8B+ Qc7 Bd7 Ra7 Bg2 h1N Bde8 Ng3 Bh1 Ra8 Qd1 Nh5 Qg1 Ng7 Rd1 Qd6 Bc7 Ra7 b8Q Rb7 Qa8 Ra7 Bb8 Qc7 Qac6 Rb7 Qcb5 Rb6 Qe2 Rd6 Qh5 Qb7 Bba7 Rc6 Bf6 Rc3 Bad4 Re3 Rd3 Bcd2 Rd1 Bc1 Rc3 Re2 Rc7 Rf2 Bde5+ Ke3 Re7 Qa7 Rf1 Qb7 Bd4+ Kd2 Bfe5 Re2 Rf3 Nf6 Rb3 Nh7 Rb6 Nb1 Rd6 Na3 Bd7 Rc8 Bb5 Rc3 Bd7 Rf3 Bde8 Rf4 Bf2+ Bd3 Nc4+ Kc2 Bf6 Bd4 Nb2 Kd2 Qf3 Be5 Bd4 Nh5 Qh3 Bc2 Bg7 Ng3 Qh5 Bf6 Bf8 Bh8 Bfg7 Ba4 Bge5 Bc2 f6 Nf5+ Kg6 Ng7 Kh6 Rg2 Qc5 Rh2 Qd5 Re2 Be3#
r1n2Q1K/3P1b2/Q1QP1Qr1/2b1Nn1N/4n1p1/3N2p1/BBbRq1P1/Q4k1r b - - 0 1 legal: proof: c4 b5 b4 h5 f4 d5 cxd5 e5 fxe5 Nc6 a4 Qf6 axb5 Nb8 Ra3 Qh4+ Rg3 Qd8 Rg4 hxg4 Kf2 Kd7 Kg3 g5 d4 a5 h4 c5 e4 f5 h5 c4 d6 Ke6 b6 a4 b5 c3 d7 c2 h6 a3 d5+ Kf7 h7 Kg6 b7 a2 e6 a1N e7 Nf6 e8N Qe7 b6 Ra6 e5 Ra7 e6 Qa3+ Nf3 Bc5 Nc3 Ra8 Bc4 Qa6 Ne4 Nb3 Bb2 c1R Ng7 Rg8 h8Q Nd4 Nh5 Nbc6 b8Q Ne7 Ba2 Qe2 b7 Rb1 Nf2 f4+ Kh2 Kf5 Qa7 g3+ Kh3 g4+ Kh4 Rg7 b8Q Rg6 Nd3 Ke4 Nfe5 Ke3 Qa6 Ne4 Qf6 f3 d6 f2 Qbb5 f1B Qbc6 Bb7 Qe1 Nc8 e7 Ra1 e8Q Rc1 Qef8 Rb1 Qca4 Bd5 Q4c6 Bf7 Qea5 Re1 Qaa4 Kd2 Qd1+ Ke3 Qa1 Rb1 Nhf4 Nf5+ Kh5 Qf3 Rg1 Be2 Rc1 Bd1 Rc2 Qe2 Rd2 Bc2 Q8h8 Nh4 Qg8 Rh1 Qf8 Rg7+ Kh6 Rg6+ Kh7 Nf5+ Qh4 Bd4 Nh5 Bc5 Ne1 Kf2 Kh8 Kg1 Qf6 Kf1 N1d3+
kn2n3/1bNbrQpr/1PR3Qn/3R2P1/1Q1P2B1/Q6K/2Nb3p/Q2q1r1R b - - 0 1 illegal: No proof kernel
NBB5/1bnB1Q2/2Qnr1N1/p1K1k3/5b2/P2r1p2/b1NNPP1N/r1R1n2q b - - 1 2 legal: proof: g4 c5 d4 h5 gxh5 e5 dxe5 b5 a3 c4 Ra2 c3 bxc3 b4 c4 b3 c5 bxa2 Kd2 Ke7 Ke3 Ke6 Kd4 a1R h4 f5 c4 a5 h6 g5 h7 d5 c6 f4 c5 g4 h5 g3 h6 g2 c7 Kf5 e6 Ra6 e7 Qd7 e8N Qf7 c6 Rb6 Nd6+ Kf6 Nc4 Qh5 Nbd2 Na6 Ngf3 g1N Qa4 Ne7 Ne3 Bb7 c8N Nc7 Nh2 Nf3+ Kc5 Ne1 Nc2 f3 Bh3 Ke5 Bd7 d4 Qb3 d3 Qf7 Rg8 h8N Rg6 h7 Re6 Rf1 Rb3 Nb6 Bh6 Na8 Bf4 Rg1 Nc8 Rf1 Nb5 c7 Ncd6 c8B Nc7 Rh1 Rb4 Bb2+ Rd4 Bc3 Ng2 Rc1 Ne1 Nb3 d2 Bb4 Qh6 Ng6+ Ke4 h8Q d1B Qhe8 Rd3 Bc3 Qh3 Be5 Qf1 Qfe7 Qh1 Nd2+ Kf5 Nb4 Bb3 Nc2 Ndb5 Qd6 B3d5 Qc6 Ba2 Bf6 Nd6 Bd8 Nd5 Bc7 Kf6 Bb8 Nc7 Nf8 Kf5 Qf7+ Ke5 Ng6+
3BB1q1/3KQqPp/2Q1B2P/qP1R1b2/pbr2Q1Q/n3nn2/1N1r1Q2/4k1N1 b - - 0 1 illegal: No possible last move, all moves rejected
K2nBrbQ/BNBprQ2/5bn1/B1q4b/3P3p/q4R1P/Br2NP2/5Q1k b - - 0 2 legal: proof: a4 c5 e4 b5 axb5 f5 exf5 g5 b4 g4 bxc5 g3 h3 Bh6 Rh2 gxh2 Na3 Kf8 Qf3 Bf4 Ke2 Bc7 Bb2 Ba5 Rc1 Qe8 Nb1 Nf6 Qg4 Ng8 Nf3 Nh6 Kd1 Ng8 Bd3 Na6 Ke2 Bc7 Rh1 Nb8 Ke1 Bf4 Bf1 Bh6 Bc1 Qd8 Ng1 Ke8 Qd1 Bf8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 c4 Kf4 g4 h5 g5 a5 c6 a4 Kc5 a3 d4+ Ke4 f6 h4 f7 a2 g6 a1Q g7 Nf6 g8B Ra2 b6 Qb2 b7 Qe8 c7 Qd8 Bd2 Ra4 Ba5 Bh6 f8B e5 Bf7 Ng8 Bd6 Bg5 Be8 Nc6 b8B Bf6 Na3 Qe7 Nb5 Ra2 Kb6 Bb7 c8Q Qa3 c5 Nd8 Ka7 Bd5 c6 Rb2 Bdc7 Qec5+ Ka8 Ne7 Bc4 Ng6 Qf1 Rf8 Ba7 Bg8 Nd6+ Kf4 Bcf7 e4 Ba2 e3 Nb7+ Ke4 Qb8 e2 Qc8 e1R Qb8 Ne6 Qd8 Ree2 Qe7 Re1 Qf7 Nd8 Nf3 Ree2 Rg1 h1B Rg3 Re3 Ng1 Bf3 Q1c4 Bd1 Qf1 Bh5 Rf3 Ree2 Bcb6 Re1 c7 Re3 c8Q Re1 Rg3 Kf4 Rb3 Re7 Rf3+ Ke4 Qc7 Bg7 Rb3 Bh8 Qg3 Bg7 Qg5 Be5 Qh6 Bf6 Bc7 Qc3 Ne2 Kf3 Qh8 Qc5 Qa1 Kg2 Ng1 Kh1 Qf1 Q3b4 Rf3 Qa3 Ne2#
5N2/1n3n1b/1q2Qbp1/R3qNPP/2Q1RBk1/K2nrr2/p2Q1rP1/NNN5 b - - 0 1 illegal: No proof kernel
N3brN1/2n5/BrB2Ppq/3PbQkq/3n4/NB1pB3/R2P1Qq1/b1K1B3 b - - 0 1 illegal: No possible last move
r4n1N/B3nK1B/Np2N2N/1PbQ2k1/1Pqr1b2/p5q1/4P2R/2NQ1qQb b - - 0 1 illegal: No possible last move
1Nq1b2k/np2N3/r1P3N1/1P1R1Qpr/3RRbrP/N3Q3/6q1/Bn1KNq2 b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 gxh5 a4 exf5 c5 d4 Ra7 dxc5 Ra5 Bc4 Ra8 Bb3 axb3 f4 Kf7 c4 d5 a4 g5 h4 Kg7 c6 e5 c7 d4 f6+ Kh7 f5 d3 f7 b2 b5 e4 a5 e3 a6 e2 c5 Qe7 a7 Bh6 f8N+ Kg7 f6+ Kf7 Nd7 Bg7 h6 Nc6 h7 Qe6 Nb8 Bd7 c8N Be8 Na3 b1R Bb2 Nge7 Qc1 Nd5 Ne7 Nc3 Nf3 Qc8 Rh2 Kf8 f7 Be5 Kd2 Kg7 Ne1 Bc7 f8R Bd6 Rf4 Be5 Qc2 Rc1 Rd4 Nb1+ Ke3 d2 Qf5 d1Q Rf2 Bf6 Rff4 Be5 Rfe4 Qc2 Ra2 Bg3 Ba1 Bf4+ Kf3 Rd1 Rd5+ Rd4 Rb2 Rg8 Rb4 Kh8 Ra4 Rg6 Rc4 Rh6 Rb4 Kg7 h8N Rh5 Nhg6 Qa2 Rb2 Ra4 Rbd2+ Qb2 R2d4 Rb4 Kf2 Qa2 Nec2 e1Q+ Kf3 Qg1 Ke2 Qg2+ Kd1 Qc4 Ne1 Qcf1 Qg4 Rb3 Qe2 Rg3 Qe3 Rg4 Na6 Rb8 a8Q Kh7 Qa7 Ra8 Nb8 Kg7 Qa4 Ra6 Qc2 Na7 c6 Kh7 Re6 Kg7 Qf5 Kh7 Ree4 Kg7 Nf8 Kh8 Nfg6+
BqQ2q2/1Qqn1Qrn/3P1b1K/2Qp1P1p/3N4/2N1nQ1k/2R4P/R1R1rb2 b - - 0 1 illegal: No extended proof kernel
1bKQ1r1R/p2n1nPb/2Q2NRp/1R3r2/4R2q/P2kN2b/P2B3R/1q2rN2 b - - 0 1 illegal: No proof kernel
1rQBQN2/1B4p1/n1Bbq3/2Pb2Pr/1N2b1kN/KB2P3/4p1r1/nB2R1b1 b - - 0 1 illegal: No proof kernel
QQ1n1K2/1Np1N1pN/r1bn1P2/bNPP1r2/7B/n2B2Rb/3qNb1Q/k7 b - - 0 1 legal: proof: e4 a5 a4 f5 b4 d5 exd5 h5 bxa5 Be6 g4 Bf7 gxf5 Be6 Ra3 Bd7 Rg3 Bc8 Rg4 hxg4 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 b5 h4 e6 f4 g3 c4 g2 f6 Rh5+ f5 Nh6 d6 Qe8 f7 Qd7 a6 Qe8 c5 Qd7 a7 Qe8 a5 Qd8 a6 Be7 f8N Bg5 f6 Nf5 d7 Nd6 Ne2 g1B Nbc3 Bf2 Qd2 Kb3 Rh3 b4 Rg3 Bb7 Qf4 Bc6 Nb5+ Ka2 Nh7 b3 Bd2 b2 Be1 b1B d5 Qe7 d8N Ka1 Qd2 Bf5 Nb7 Bh3 Qf4 Qe8 Qd2 Qg6 Qf4 Qd3 Qd2 Rh6 h5 Rg6 Qc2 Bd2 h6 Ba5 Qd2 Bg1 Qf4 Qd2 Qf2 Rg4 Qh2 Rc4 Ned4 Be3 Bd3 Bf2 Ne2 Rh4 Nf8 Ra4 h7 Rf4 h8N Rf3 Nhg6 Rf4 Re3 Rf3 Ne7 Rf5+ Kd4 Ne8 Nh7 e5+ Kc4 e4 Rg3 e3 Kd4 Nd7 Ke4 Nf8 Kd4 Ne6+ Ke4 Rd8 a8Q Rd6 a7 Nd8 Qb8 Re6+ Kd4 Nd6 a8Q Bg1 Nc1 e2+ Bf2 e1N Ne2 Ne8 Rg4 Rd6 Rg3 Nc2+ Ke4 Na3 Be1 Rf2 Ke5 Rf4 Re3 Bf2 Rg3 Rg4 Kf5 Rf4+ Kg5 Rf5+ Kg6 Ne6 Kf7 Nd8+ Kg8 Re6 Kf8 Nd6 Rg4 Re4 Rg3 Rb4 Nbc3 Rb6 Nb5 Ra6 Rg6 Be3 Bh4 Bf2 Rg3
6NR/1q2Qr2/2pQK3/2pR4/P1P2Pnb/RbQQBN2/Q3nk2/1qn2rn1 b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 a5 bxa5 h4 Bb5 h3 Bc6 dxc6 gxh3 Qd6 h4 Qd7 h5 Qd8 Ke2 c5 Ke3 Kf7 Ke4 Kf6 h4 g5 c4 e5 d4 b5 f4 g4 h6 g3 a6 g2 h5 b4 d5 b3 d6 b2 Kd5 e4 h7 e3 a7 e2 d7 e1N h6 Qe7 d8Q Nc6 Nc3 b1Q Rh5 Bd7 a4 Nd3 Ra3 Nd4 Qc2 Rb8 a8Q Rb7 Bd2 Nc1 Qa7 Be8 Qa2 Bg6 Qd7 Nde2 Qb8 Qg7 Qa7 Be7 Ne4+ Kf7 f6 c6+ Ke5 Bf5 Qb8 Kg6 Qd4 Bd8 Qbd6 Qc7 f7+ Nf6 f8Q Rg8 Nf2 Bc2 h8Q Bb3 h7 Qc8 Rf5 Rf7 Ng4 Qb7 Ke6 Rgg7 Rd5 Be7 Ke5 Kh5 Ke6+ Kh4 Nh6 Kg3 Qd3+ Kf2 Ng8 Rg3 Qfd8 Ng4 Qhc3 Bh4 h8R Rh3 Q8e7 Rh1 Nf3 Rd1 Nd4 g1N Nf3 Rf1 Be3+
KQ1N4/1nRN2P1/1qNpPqB1/2k1r3/pr1q1Q2/P1N1N1b1/n3b2q/2Q1R3 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 h6 g6 Qe7 g7 Qd8 g4 Na6 g5 Nb8 g6 Qa5+ Bd2 Qd8 Bg5 hxg5 Kd2 Ke7 Kd3 f5 Kc4 a5 Kb5 a4 e4 d6 h4 f4 c4 f3 a3 f2 c6 b6 c7 g4 e6 g3 c5 g2 c6 Qd7 h5 Nh6 g8Q Ra7 g7 Ra6 e5 Nf7 h6 Bb7 c8Q Ra8 h7 Na6 Qd4 Qc7 Nc3 Qd8 c7 Rb8 Nge2 g1Q Nf4 Nb4 Ng2 Bf3 Ne3 Na2 Ka6 b5 Ka7 b4 Rc1 b3 Bd3 f1Q Bg6 b2 Qf4 b1Q Rc2 Rb7+ Ka8 Qh2 Rc1 Qfd3 Rhe1 Ke8 e7 Be2 Qb8 Kd7 c8N Kc6 e8N Qd2 e6 Kc5 Ne7 Qbb6 Nc6 Qd4 Nf6 Be7 Qe8 Rf8 Qd7 Rh8 Qdc8 Qf8 Rc2 Nd8 Rcc1 Qb1 Rc2 Rb4 Qcc7 Nb7 Rcc1 Rg8 h8N Qb2 Nf7 Rh8 Nh7 Bh4 Qcc8 Bg3 Nfd8 Qff6 Nf8 Rh5 Na5+ Kb6 Ne4 Rb3 Qc2 Rc5 Qd2 Rh5 Rc7 Re5 Nac6 Qb1 Nc3 Kc5 Qc1 Rb5 Ng4 Qbb4 Ne3 Qa5+ Qa7+ Qb6 Qb8 Rb4 Nd7#
5r2/1QNp1BQ1/2PpB3/1r1q2PK/b1NNrk2/1nnP2R1/5B1B/b3Bqr1 b - - 0 1 legal: proof: e4 f5 exf5 g5 b4 b5 h4 Bg7 hxg5 Bc3 a4 Bf6 axb5 Bg7 Ra6 Bf8 Rd6 cxd6 Ke2 Kf7 Kf3 h5 c4 a5 g4 e5 f6 Ke6 b6 a4 d3 a3 b5 h4 g6 h3 f7 a2 g5 Kf5 c5 a1R c6 h2 g7 Qe8 b7 R8a2 b6 Ra5 Nd2 Rb1 Qb3 Rh5 Bh3+ Kg6 Kg4 e4 f4 e3 f5+ Kh7 f6 Kg6 Nc4 e2 Nf3 e1R Nd4 Ne7 g8B Na6 b8B Bh6 f8Q Nc5 f7 Nd5 b7 Re4+ Bf4 Bg7 Bc7 Qe5 b8B Nc3 Ba7 Rb5 Ba5 Qd5 Rg1 h1Q Rg3 Qf1 Qb2 Bb7 Qb8 Ba6 Qb7 Bh8 B7b6 Nb3 f8N+ Kg7 Nfe6+ Kg6 Bc5 Rh7 Nc7 Rf7 Kh4 Rf8 Bhe6 Ra1 Nf3 Rb1 Bf2 Ra1 Bef7+ Kf5 Kh5 Bd4 Rg2 Rd1 Bh2 Bf6 Rg3 Kf4 Qa1 Na2 Nd4 Rc5 Nf3 Qh1 Qa7 Bb5 Be8 Ba4 Be6 Rb5 B8f7 Qg2 Qb6 Rg1 Qb7 Qf1 Bae1 Bg7 Qb1 Ba1 Qb2 Rh1 Qh8 Nc3 Qg7 Rg1 Nd4
1Nb1N1qr/3N4/pKQqn3/p1Pr2Qk/NN6/bBR2r2/Pr2R1P1/3n2Q1 b - - 0 1 legal: proof: e4 c5 h4 g5 hxg5 f5 exf5 b6 d4 Bg7 dxc5 Bh6 Bd2 Bf8 Ba5 bxa5 Ke2 Kf7 Ke3 e5 f4 d5 c4 h5 b4 e4 Kd4 e3 g6+ Kf6 b5 h4 b6 e2 b7 e1R g7 h3 c6 a6 c7 h2 Nf3 Kf7 f6 Kg6 f7 Bd6 f8Q Bg4 c8Q Rh4 f5+ Kh6 f6 Qe7 f7 Rh3 Ne5 Nd7 b8N Ba3 Nec6 Nc5 Nb4 Re2 Nc3 Nf6 g8N+ Kh5 Qfd8 Qd6 f8N Rb2 Rc1 Rf3 Nfd7 Nfe4 Qc6 Nf2 Na4 Bh3 Qe1 Nd1 Rc3 Bg4 Rg1 h1Q Bd3 Qhh2 Bc2 Qhg3 Bb3 Bf5 Qe3 Bg4 Re1 Ne6+ Kd3 d4 Re2 Bh3 c5 Qg7 Kc4 d3 Qg1 d2 Ngf6+ Kg6 Ndb6 Qg8 Ne8 Kh5 Qf6 Nf2 Qd8 d1R N6d7 Rd5 Qf6 Nd1 Qh4+ Kg6 Qg5+ Kf7 Nf8 Qh7 Qc8 Re5 Nc7 Nd8 N8c6 Bd7 Qb7 Ne6 Qb5 Rd8 Nb8 Bc8 Nfd7 Rh8 Ne8 Ref5 Q5e3 Kg6 Qe5 Qf8 Kd5 Qhg8 Kc6 Kh5 Kb6 Qd6+ Qc6 Rg5 Qf6 Rd5 Qg5+
qqr2nK1/4N1pR/3bpQ2/2qr2nP/2B3b1/N1N3Qk/2P1PB2/2N1QN1q b - - 0 1 legal: proof: d4 b5 g4 c5 dxc5 f5 gxf5 h5 a4 Na6 axb5 Rh6 Ra4 Nb8 Rg4 hxg4 b4 Rh8 Kd2 Kf7 Kc3 Kf6 Kc4 a5 Kd5 a4 f4 a3 h4 d6 c6 a2 c7 a1Q b6 g3 b7 g2 b5 Qa6 b6 Nd7 b8N Bb7+ Nc6 Qa3 c8N Qa7 Be3 Nb8 Na3 Qd7 Qe1 Qe8 Bf2 Nh6 Nf3 g1Q Nh2 Qd8 Bg2 Ba6 b7 Ng8 Nd4 Qe8 Ndb5 Rh5 Nf1 Nd7 b8Q Nh6 Nc3 Nf7 Be4 Qd8 Bd3 Ng5 Bc4 Bb5 Qc7 Qb8 Rh3 Ne5 Rh1 Bd7 Rh2 Ng6 Rh1 Kf7 f6 Bg4 f5 Qe8 Nb6 Qed8 Na2 Qe8 Nc1 Qed8 Kc6+ d5 Qg3 e6 Na4 d4 Nc3 d3 Rh2 Qa5 Kd7 d2 Rh3 Bd6 Rh1 Kg8 f7+ Kh7 f8Q Kh6 f6 d1Q f7 Qd4 Qd8 Qdc5 Ke8 Nf8 Rh2 Qh1 Rh3 Nd7 f8N Qa6 Ng6 Nf8 Ne7 Qaa5 Nc6 Kg6 Rh2 Kf5 Rh3 Qbb6 Rh2 Rc8 Rh3 Qa8 Rh2 Ne4 Kf7 Qbb8 Kg8 Ng5 Qe3 Bf3 Qf6+ Kg4 Ne7 Ne4 Rg2+ Kh3 Rg6 Rf5 h5 Rd5 Rh6 Ng5 Qef4 Bg4 Rh7 Ne4 Q4e5 Ng5 Qg3+
1N2R1Q1/1B1Bp3/4P1KQ/p2rq3/PRb4q/Bnb2q1k/PrB3R1/B3r2b b - - 0 1 legal: proof: f4 g5 fxg5 d5 c4 Na6 cxd5 Nc5 b3 Na4 bxa4 h6 g4 Rh7 g6 Qd6 Nc3 Rh8 Ne4 Qd8 g5 h5 Nf2 Bh6 Ng4 hxg4 Nf3 Bg7 Ng1 Bf8 Kf2 Kd7 Ke3 f5 Kf4 a5 e4 c5 d4 b5 h4 c4 g7 c3 h5 g3 h6 g2 h7 b4 e5 b3 d6 Ke6 g6 c2 Kg5 f4 d7 f3 Rh4 f2 Ba3 c1R Qh5 b2 Qh6 b1B Ne2 g1Q+ Bg2 Qd1 Bb7 Qc7 d8R f1Q Re8 Qh1 Kh5 Kf5 d5 Qd3 d6 Re1 d7 Rb8 d8Q Be6 Rh2 Bc2 Rb1 Bc4 Rb4 Qc3 e6 Q7e5 Qc8 Qhe4 Rg2 Q4f4 Qd8 Be4 Nd4+ Kf6+ Rg5 Bh1 Nc6 Qf2 Qd6 Rd8 Qb8 Rd5 Qd8 Qce3 Nb8 Qff3+ Kh4 Qg1 Rg2 Kf5 Qc8 Nf6 g8B Bg7 Bf7 Rg8 h8B Ne4 Qd8 Nd2 Qc8 Qd3 Kh5 Qf2 Qd8 Bf6 g7 Nb3 Qc8 Rf8 g8B Qde3 Rd8 Q3g3 Be8 Qfe3 Bd7 Re8 Qf8 Qef3+ Kh6 Kg4 Kg6 Bg7 Bh7 Bf6 Qg7 Rf8 Re8 Kh3+ Kh6 Qgf2 Bc2 Qh4+ Kg6 Rf7 Qg8 Bg7 Qc7 Rf4 Qc6 Rfe4 Qc5 R4e2 Qe3 Rf2 Qh6 Bf6 Bd3 Rb2 Bb1 Bg5 Be4 Bd2 Bc2 Bc3 Bb1 Qh2 Be4 Rbe2 Qgh7 Bb2 Bc3 Qe5 Qg8 Rf2 Bd2 Bd4 Bc3 Rc2 Ba1 Rb2 Bd3 Bc3 Bc2
7n/n3Q1B1/4B1PQ/bqQ1n1Np/b1BpbN1K/7P/2kPBB1r/1nn4R b - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 g5 b4 b5 cxb5 Ra6 a4 Nc6 b6 Bc5 b5 Bd4 b7 Nb8 Ra3 Rd6 Rf3 Bc5 Rf6 Rd5 Rf4 Bf8 b6 Rb5 axb5 gxf4 Ba3 a4 Bb2 Qe7 Bc1 Qd8 Kf2 Ke7 e4 Ke6 g4 f5 g5 d5 g6 c5 Qe1 f3 Kg3 f2 Nf3 d4 Bg2 f1B Ba3 c4 Nc3 f4+ Kh3 Bd7 Qh4 Bd3 Ne2 c3 Qh6 c2 Bf1 Qe8 Kh4 Nc6 b8Q c1N b7 Na7 b6 Bb4 Qc7 Ba5 Bf8 a3 b8B a2 b7 a1N Qc5 Ba4 Bg7 Nc2 Bc7 Na3 b8Q Qd7 Qbb4 Qb5 Bb8 Nb1 Ng5+ Kd7 Bd6 f3 Nf4 f2 Be2 f1N Bb8 Ne3 e6+ Ke8 e5 Be4 e7 Kd7 Bc4 Ng4 Be2 N8f6 Bc7 Ne8 Bb8 Nd6 e8B+ Ke7 Bf7 Kd7 Bfc4 Nf7 Qe7+ Kc6 e6 Nge5 Bd6 Rd8 Bc7 Nh8 h3 Rf8 Bb8 Kb6 Qbc5+ Ka6 Nd3 Rf2 Nf4 Rh2 Qd7 Bc3 e7 Ka5 e8B Bb4 Bef7 Bc3 Qcc7+ Kb4 Bfe6 Ka3 Qdc8 Kb2 Qe7 Ba5 Qcc5 Kc2 Nd3 Ng4 Bg3 Ne5 Bf2 Bc3 Nf7 Bb4 Nf4 Ba5 Qhg5 h5 Qh6 Bd8 Ng5 Bb6 Nf7 Ba5 Ng5
Q3B1k1/1Npr4/4rpPB/Q2n1P1n/K4pbn/bN2bP2/qQ2Q2N/1Q3R2 b - - 0 2 illegal: No proof kernel
KR3nnR/1p1p3P/B2P3n/Q1r1k1q1/QPQ1rp2/1Br1B2Q/4b3/NQ2b3 b - - 0 2 illegal: No proof kernel forced: wxLB
5K1R/q6b/2pkb3/N1P1R2R/1QPpRQNr/3R1n2/1p1nB1Pb/3r1N1r b - - 0 1 illegal: No possible last move
3K2N1/Prn2P1b/1QNRR1r1/Q3Q3/NB2npr1/b3Qbpq/4pP2/2Q3k1 b - - 0 1 illegal: No proof kernel
R7/Q2R1Kb1/2N1n3/Q1PQBk2/pN1p3Q/1r2q1np/1PrP1Q1b/1bn3R1 b - - 0 1 illegal: Other
4NR2/PQr5/B3pQnq/2bBp2p/r2nb2P/NP1k1BK1/1B2N1n1/1qB5 b - - 0 1 illegal: No proof kernel
1b2bbn1/1p1qR2n/QPR2R1r/p1P1QNB1/4R1R1/4q2p/1r2N2P/1k3Q1K b - - 0 2 illegal: No proof kernel
4n2n/p2QK2k/q1b2QR1/b1Q1p1r1/2B5/3qRp1P/rB1QnP1P/3RNQ2 b - - 0 1 legal: proof: e4 c5 b4 h5 a4 d5 exd5 b6 a5 h4 Nc3 h3 gxh3 Qc7 Na2 Qd6 axb6 Qd7 b5 Qd8 Nb4 cxb4 Ke2 e5 Kf3 g5 Ke4 g4 c4 g3 d4 f6 c5 Kf7 c6 Kg6 b7 g2 c7 b3 b6 b2 d6 b1Q+ Kd5 f5 d7 f4 Ke6 Nf6 d5 Qb2 d6 Rh6 Ra6 Ne4 Bc4 Qa2 Qf1 Nc6 b8R Ne7 b7 Nf6 Bb2 Ne8 Nf3 g1N Ne1 f3 Ra3 Rh5 Re3 Ne2 Rg1+ Kh7 Rg6 Qa6 Kf7 Nf5 Ke6 Nh4 Kf7 Qg5 d8Q Bd7 c8Q Qf5+ Qf6 Rg5 Qc5 Qd3 Rd8 Rc8 b8Q Bc6 d7 Bd6 Qa8 Bc7 Ke7 Ba5 Qb7 Rb8 Qc8 Rb3 Qb7 Ra3 Qbb4 Ra2 Qd2 Ng7 Rc8 Ne8 d8Q Rf5 Qd7 Rh5 Rg1 Rg5 Rd8 Ng6+ Kf7 Nh8+ Ke7 Rf5 Rg6 Rh5 Rb8 Rf5 Rb3 Rh5 Rc3 Rf5 Rc1 Rg5 Rd1
3q1kqr/5PbR/pNn2p1n/PpP1BB2/r2BQR2/5n2/1Kb5/R2BQ2B b - - 0 1 illegal: No proof kernel
2rR3R/Pb2nqPp/2r1B1p1/2N1R1k1/1b2p1bn/R3N3/Q3P1RK/q2Q1Q2 b - - 0 1 illegal: No extended proof kernel
b1N2BB1/2B2Bb1/2q1BQ1N/nq1p1rQ1/3K3k/P1PP1p1p/1r3n2/2Qq3R b - - 0 1 illegal: No possible last move, all moves rejected
1B1k3R/1q2qp2/2qBp3/KNN1b3/n2nPPB1/2rN1QBb/BP3pr1/Q7 b - - 0 2 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 g4 f4 Nf6 Ra3 Ng8 h4 Kd7 h5 Qe8 Rf3 gxf3 g4 Kd8 g5 Qc6 Bh3 Qh6 Bf1 Qg6 hxg6 Ke8 e4 a5 d4 c5 Kd2 h5 Kc3 a4 d6 h4 g7 a3 d7+ Kd8 g6 c4 Kb4 f2 d5 h3 b6 c3 b7 a2 Bd2 a1Q Na3 h2 Nf3 c2 Ne1 c1Q Bc4 Ra5 Ba2 Kc7 d8N Ra7 d6+ Kd7 Qf3 Qc6 Ne6 Nh6 g8Q Nf5 g7 Nd4 Nb5 Ra3 Nc5+ Kd8 d7 Rc3 Ka5 Na6 b8B Qc1 Ned3 Qb7 Qh7 Rg8 Qhh3 Qc2 Qf1 Qc1 Q1d1 Qc2 Qa1 Qc1 Rg1 h1Q Be1 Qh3 Rh1 Qe6 Rh8 Qec6 Bd2 Qh1 Be3 Qh4 Bd6 e6 Bb8 Bd6 Bd2 Be5 Be3 Rf8 g8B Qe7 Bh7 Re8 Bf5 Rg8 Rh5 Rg2 Bg4 Nc7 Bd2 Nd5 Rh4 Nb6 Be1 Rc1 Bb4 Na4 Rh8+ Qe8 Nb3 Rc3 Bf8 Qe7 Nbc5 Qa8+ Ba7 Ba6 Bb8 Qe8 Bfd6 Qab7 Nc7 Bc4 Nb5 Qf8 Nb4 Be2 Nbd3 Bf1 Rh4 Rh2 Rh8 Bh3 Bdc7+ Ke7 d8B+ Ke8 Bh4 Rg2 Bg3 Ke7 Bd6+ Kd8 Rh5 Qfe7 Rh8+
1nrN1q2/4b1R1/Qppn3k/1p1N4/Qq1N2r1/QP3qP1/R1P3b1/K1NB2N1 b - - 0 2 legal: proof: e4 f5 exf5 g5 d4 e5 dxe5 g4 Be3 g3 Bb6 axb6 hxg3 Ne7 g4 Ng8 g5 Bh6 Qd5 Bg7 Qd1 Bf8 Kd2 Kf7 Kc3 Kg7 f4 h5 a4 d5 e6 h4 f6+ Kh7 g6+ Kh6 a5 h3 a6 h2 f7 Kg7 f5 Nf6 b3 d4+ Kb2 d3 g3 d2 e7 Ng4 e8Q Be6 a7 Nh6 Nc3 Qd5 Na2 Qd3 Qe2 d1Q Qa4 c6 Nc1 Qe1 Ra2 Qd8 Qea6 b5 Ka1 b6 Be2 Qd7 Bd1 Bc5 f8N Nf7 f6+ Kh6 g7 Bf5 Ne6 Qe7 Nd4 Nd6 f7 Rg8 f8N Qb4 Nfe6 Qf8 Nd8 Be4 Qa3 Bg2 Q3a4 Nd7 Qa3 Rc8 a8Q Nb8 Q6a4 Ne8 Q8a6 Be7 Qb2 Nd6 Qba3 Rh8 g8N+ Kg6 Nce2 Rh4 Nc1 Rg4 Nf6 Kh6 Nd5 Qe8 Ngf3 Qf8 Re1 h1Q Ng1 Qh5 Rf1 Qh1 Rf7 Qh5 Rg7 Qhf7 Q4a5 Qf3 Q5a4
1n2Nb2/p2R4/1p1b1p1N/1r2RQN1/1N2rPP1/P1Bnq1q1/2Qb2NR/k4K2 b - - 1 2 illegal: No possible last move, all moves rejected
1B2b2R/2prNrk1/Q2b1Qn1/1K1B2NP/3B2rq/Q3Pnp1/2p1B1P1/1Br5 b - - 0 1 illegal: No possible last move, all moves rejected
1B1R4/3p1bP1/k1nn1RR1/1RpBn1rp/P4b2/qnN2Br1/Q2P1Q1K/6R1 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 b5 hxg5 f5 exf5 Ra6 c4 Rh6 Nc3 Rh4 Nd5 Rd4 cxb5 Rd3 b6 Ra3 b5 Ra4 Nb4 axb4 Qb3 Ra3 Qd1 Ra8 g4 h5 f4 c5 Kf2 e5 Kg2 b3 a4 e4 b7 b2 b6 b1N f6 e3 g6 e2 f5 e1N+ Kh2 Ra5 f7+ Ke7 f6+ Kd6 g7 Kc6 g5 Rh6 g6 Rb5 Qc2 Nd3 Be2 Nc3 Bb2 Ne7 g8B Nc1 g7 Ne4 Be5 Nd6 Qa2 Ng6 Bd1 Qe7 Ne2 Nb3 Nc3 Rb4 Rg1 Rg4 Rg3 Qe6 Bf3+ Qd5 Rd1 Rg5 Rdg1 Qe4 Bf4 Ne5 Rg4 Be7 f8R Rhg6 f7 Bd8 R4g3 Bc7 Rd8 Qd5 f8R Qe4 R3g2 Rg3 Rf6 R6g5 Be2 Qe3 Bd1 Na6 b8Q Nb4 b7 Kb6 Bd5 Ka6 B1f3 Nbc6 Qa8+ Kb6 b8R+ Bb7 Rbc8 Ba6 Rb8+ Ka5 Qb7 Bc4 Qb4+ Ka6 Rb5 Nba5 Qbb1 Nb3 Qe1 Qd3 Qf2 Qe3 Bde4 Bf7 Bd5 Qe1 Rf1 Qc1 Re1 Qa3 Rgg1 Nec4 Ree6 N4e5 Rg6 Bb8 Ref6 Nd3 Ne4 Nb7 Be5 Bd6 Bc3 Bf4 Ba5 Nd6 Bc7 Nde5 Nc3 Qc1 Bb8 Qb2 Bh1 Qa3 Bhf3
1B1r1nN1/1KppB3/n3RrQ1/pnb1Q3/kBRP3b/2n1P3/2PB4/1B2qQ2 b - - 1 2 legal: proof: f4 b5 a4 f5 axb5 e5 fxe5 f4 g4 Bb7 Nc3 Be4 Nd5 h5 Ne3 Bf5 gxf5 Rh7 Ng4 hxg4 Nf3 Rh6 Ng1 Rh8 b4 a5 d4 g5 Kd2 g3 Kc3 g2 Kc4 f3 h4 g4 e6 f2 e3 g3 e7 Rh5 b6 Ra6 Kb5 Nh6 b7 Rc6 Bc4 f1N Ne2 g1B Nc3 g2 Bd2 Ng3 Ne4 Ng4 Ba2 Nf1 Bb1 Rf6 Ra4 Rhh6 h5 Nc6 Ka6 Rhg6 b8Q Rg8 b5 Ng3 b6 Nge5 h6 Ng6 b7 Ne2 h7 Nc3 h8B Nb5 Rc4 Bf2 Rh6 g1N Qf1 Bh4 Qc8 Ne2 b8B Nb4+ Kb7 Nec3 Bg7 Re6 Bf6 Na6 Bg5 Rh8 Nf6+ Kf7 Ng8 Rc6 f6 Ke6 e8Q+ Kd5 f7 Rf6 Rb4 Bc5 Rc4 Nf8 Qe4+ Kd6 Qg6 Qe7 Qd8 Qe5 Qe8 Qg3 Qee4 Qe1 Qe8 Ne6 f8B+ Kd5 Kc8 Kc6 Bd6 Nf8 Qe5 Na3 Be7 Kb5 Bd6 Nb4 Kb7 Ka4 Rh7 Nab5 Re7 Ba7 Re6 Bb6 Rc6 Na6 Bb4 Ba7 Rc4 Bc5 Qef5 Rh7 Qd5 Re7 Qe5 Re8 Qh7 Rd8 Qg6 Rf4 Be7 Rf7 Rd6 Rf6 Re6
3q2bq/2q3p1/1pnN1RP1/2RQ1r2/KRN2b2/p2P1NN1/1PQ1nkB1/3N3n b - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 f4 a5 f3 a6 Qd6 exf3 Nc6 f4 Qd8 f5 Nb8 g4 h6 g5 b6 g6 Be6 d3 Bc8 Bg5 hxg5 Qb3 Nc6 Nc3 Rb8 Nb1 Rb7 axb7 a5 Qd1 Nb8 Kd2 Kd7 Kc3 Kd6 Kb3 Kc5 f4 Kd4 h4 Ke3 d6 e5 f6 c5 h5 g4 f7 e4 f5 c4+ Ka4 c3 f6 c2 h6 c1N d7 g3 h7 g2 Nc3 Ba3 f8N Kf2 f7 e3 Nge2 g1Q Ne6 Be7 f8R+ Nf6 Ng3 e2 Nd4 e1Q Qc2+ Ne2 Rh4 Bd6 Bg2 Qc1 Nf3 Ne4 Rf6 Nc6 b8N Rf8 h8N Qh2 Nf7 Bf4 Nd6 Bb7 Rg4 Qh8 Rg5 Ba6 Rc5 Bc4 Ra3 Bf7 Rb3 Bg8 Rb4 Rf7 Na6 Rf8 Nc7 Rf7 Nce8 Rf8 Nh5 Ng3 Nc4 Nh1 Ng3 Rf7 Ned6 Rf8 Re6 Rf5 Rf6 Qh4 Ka3 Qh8 Kb3 a4+ Ka3 Qc7 d8Q Qe3 Qd7 Qe8 Qf7 Qed8 Qd5 Bc1 Ka2 a3 Kb3 Be3 Ka4 Bf4 Nd1+
8/2KQQ2R/qN1r2Br/1k4pB/2npPqPb/1r1P3B/R1Q1p3/1b2BBr1 b - - 0 1 illegal: No proof kernel
1Q1b4/QRPRpPp1/N2RP2R/rp1Q3r/1k1K2pr/1q6/1B1n2R1/2n2B1b b - - 0 1 illegal: No proof kernel forced: wxDB
r1B3QK/B3p2Q/N1Pr4/1B2Pr2/NpR1B3/b2p2n1/q2PQ2p/B2bk1n1 b - - 0 2 legal: proof: b4 c5 a4 b5 axb5 g5 f4 Bb7 fxg5 Bc8 b6 Ba6 b5 Bb7 Ra4 Bc8 h4 Nf6 g4 Qc7 g6 Qh2 g7 Qg2 g5 Nh5 Rb4 cxb4 g6 Qg5 hxg5 Nf6 Rh5 Ng8 Rh6 Bb7 Rh1 Bc8 Kf2 h5 Kg3 f5 Kf4 a5 e4 d5 c4 Kd7 b7 Kd6 e5+ Kc5 b6 Kd4 c5 h4 Nc3 h3 Bb2 h2 Nh3 a4 Nf2 a3 Bb5 a2 Qe2 a1Q Rc1 Nf6 g8B Rh6 g7 Nc6 b8Q Ne4 g6 Ng3 Kg5 f4 b7 f3 Nd3 f2 Bh7 f1R g8Q Qa2 g7 Bg4 Ba1 Rd6 Be4 Rff6 Qh7 Rf5+ Kh4 Bh5 g8B Bh6 Be6 Be3 Qbg8 Bf3 b8B Bf2 Qf1 Bd1 Ba7 Be3 Bc8 Bf2 Ba4 Kc4 Qg2 Nd4 c6 Nde2 Nc5 Bd4 Na6 Ng1 Bb5+ Kb3 Na4 Bb2 Qf2 Ba3 Rc4 d4 Qe2 d3 Kg4 Rf2 Kg5 Rff6 Bg6 Rf8 Kh6 Rf5 Rd4+ Kc2 Kg7 Kc1 Rc4+ Bc2 Qe4 Kd1 Kh8 Bb3 Qg2 Ke1 Qf3 Bd1 Qg4 Rh5 Be4 Rf5 Qe2+
3BQ1Br/2bBpr2/2b1Pk2/p3QnR1/q2N1p2/P6B/1Pn2pB1/Nq2Q2K b - - 0 2 illegal: No proof kernel
k3r3/2bnNN2/Qp1p2Q1/nq1R2p1/B3QrQ1/1bP1K1PN/1p1P4/Qq4B1 b - - 1 2 illegal: No possible last move
8/R2rbpRP/1bNr3p/q6P/3RR1Rp/1B2p2b/2QBPQ1n/rBK2k2 b - - 0 1 illegal: No proof kernel
3b3r/B1q2pk1/rNNNp1bq/1R1RP3/1R3P2/pQQ4P/2p1nK2/R2q3R b - - 0 1 legal: proof: a4 b5 axb5 h5 c4 d5 cxd5 Nd7 g3 Ne5 Bh3 Ng6 Bg4 hxg4 h3 Nh4 gxh4 Bd7 Rh2 Be6 Rh1 Bc8 e4 a5 d4 c5 f4 g5 b4 g3 b6 c4 d6 a4 d5 e6 h5 g4 d7+ Ke7 b5 Kf6 h6 a3 d6 c3 h7 g2 b7 g3 b8R Bg7 b6 Ba6 b7 Ne7 Ne2 Rf8 h8Q Ng6 Qb3 c2 Nec3 Nh4 Na4 Bd3 Nb6 Ra6 Nd2 Nf5 Ndc4 Nd4 Be3 Qc7 d8N Ne2 d7 Rg8 Nd6 g1Q+ Kd2 g2 Nc6 Qb1 d8R g1Q Bc5 Qg5 Ke3 Rf8 Kf2 Qd1 e5+ Kg6 Qh4 Qh6 Qg3+ Kh7 Qf3 Bf5 Qfc3 Bf6 Na8 Qg6 Ne8 Bg7 Rd5 Bf6 Nd6 Kg7 Ba7 Be4 Rd8 Re8 b8R Rh8 Rf8 Be7 Rb4 Qh6 Rfb8 Bg6 R8b5 Bd8 Nb6
5b1k/2pQr3/3N1Rnr/r1PR1K2/3PN3/qp2R3/1P1R1Bpp/Q1Q1rRn1 b - - 0 1 legal: proof: g4 b5 e4 g5 a4 f5 h4 d5 exd5 b4 Bh3 Be6 hxg5 Na6 g6 Nb8 g5 Bd7 Bg4 Bb5 axb5 fxg4 Ke2 h5 Kd3 a5 Ke4 e5 c4 a4 f4 a3 d4 b3 d6 a2 f5 g3 g7 Kf7 g6+ Kf6 c5 h4 d7 g2 b6 h3 b7 h2 Nd2 Ra5 Ne2 Rb5 Rf1 Rh6 Nc3 Qe8 d8Q+ Ne7 g8Q Rb6 g7 Qa4 Qd7 Rc6 Qc4 Qb5 g8R Qb4 Nb5 Qa3 Rg5 Rh7 Nd6 Ra6 Rg3 Rc6 Re3 Kg7 f6+ Kh8 f7 Ng6 Kf5 e4 Rb1 a1R Qa4 Na6 b8R Nb4 Rd8 Nd5 Ree1 e3 Qe6 e2 Nb5 Qa2 Ne4 Nc3 Be3 Nf4 Rd5 Bg7 Qd7 Rch6 Bf2 Ng6 Qa5 Qa4 Nbd6 Ra3 Qa6 Qb4 Qc4 Ra5 Rc1 Qa3 Rc2 Nf8 Qa1 Ng6 Rd1 e1R Rd3 Ne2 Rcd2 Ng1 Qcc1 Bf6 Rf3 Be7 f8R+ Kg7 Rf7+ Kh8 Rf6 Bf8 Rg3 Re7 Re3
K4Qb1/Np4QQ/p1pR2NN/1n2R3/P5Bq/2Pp2nb/3P2kp/3rQ1Qr b - - 1 3 legal: proof: e4 g5 h4 f5 exf5 a6 hxg5 Bh6 b4 Bg7 b5 Bd4 f4 Bb6 Bb2 Nc6 Bf6 Ba7 b6 Nb8 bxa7 Nh6 Be5 e6 f6 Ng8 Bd6 e5 f5 Kf7 Bc5 Ke8 Be3 Qe7 Bf4 exf4+ Be2 Qd8 Bd3 Nh6 Bf1 Ng8 Ke2 Kf7 Kd3 d5 Kd4 h5 Kc5 h4 a4 c6 g4 d4 c3 h3 g6+ Ke8 g7 Kf7 g5 f3 g6+ Ke8 f7+ Kd7 f8Q f2 f6 Ke6 f7 Ke5 Be2 Kf4 Qe1 Kg3 Bg4 d3 Na3 Be6 Nf3 Rh5+ Ne5 Qg5 Kb6 Rh4 Nb5 Nh6 g8N Kg2 g7 f1B Ng6 Nf5 Nh6 Nd6 g8Q Nd7+ Kc7 Rd8 a8Q Re8 Na7 Nc5 Qh7 Nce4 Qfg7 Ng3 f8Q Bg8 Rd1 Re2 Kb8 Nb5 Rb1 Qe7 Rb4 Rh5 Re4 Qh4 Re5 Re4 Qc5 Rb4 Qce3 Rb1 Qg5 Rd1 Rh2+ Kg1 Rf2 Kh1 Rf6 Kg2 Rd6 h2 Qd8 Rf5 Qdf8 Rf4 Nc8 Rb4 Qa7 Rbb1 Ka8 Kh1 Qe2 Bh3 Qe1+ Kg2 Qd4 Rbc1 Na7 Rb1 Qee3 Rh1 Qe1 Rd1 Qdg1+
1rn5/Pnqb2N1/N1pB1R1p/2pkNN2/1n1p3P/2Q3p1/R1RP4/rNQ1K3 b - - 0 1 illegal: No proof kernel
2B1Q1Q1/1R5n/4pBKR/3R1pbp/Q3b2b/RNqpPk1P/2r2P1n/2r3Rq b - - 0 1 legal: proof: d4 g5 a4 b5 axb5 c5 dxc5 g4 h3 g3 Nd2 Qb6 Ndf3 Qd8 Nh2 gxh2 Kd2 d5 Kd3 Kd7 c4 Ke6 b4 Kf5 g4+ Ke5 g5 a5 g6 h5 c6 d4 b6 f6 g7 a4 b5 a3 e3 a2 b7 Ra6 b6 Qc7 c5 Ra7 Ne2 Kf5 Qa4 Rh6 Rg1 h1Q Bb2 Nd7 b8R Ra6 Nc1 Bb7 Rd8 e6 Nb3 Be7 Be2 Qc8 c7 Rh7 c6 Nh6 g8Q Ng4 Qe8 Ba8 b7 Nh2 b8R Nf8 Rb7 Rb6 Kc4 Ke4 Rd5 f5 Bf1 Kf3 Kd3 Qd8 c8Q Bg5 c7 Rc6 Qb8 Qf6 c8R Rh8 Rcc7 Rg8 Rh7 Rc1 Rh6 Nh7 Qbc8 Rg7 Qg8 Rgc7 Qce8 R7c2 Bc3 Bh4 Kc4 Ng4 Kc5 Nh2 Kd6 Qh8 Ba6 d3 Bf6 Bg5 Ke7 Bh4 Bg5 Qc3 Bf6 Bg5 Kf7 Bh4 Rb1 a1B Kg6 Bb2 Ra1 Ba3 Rg7 Be7 Bc8 Bc6 Ra3 Bb7 Ra5 Be4 Rd5 Bd8 Rb7 Be7 Bd4 Beg5 Bf6
1NKNk2r/p1pn3p/Q7/3nqp2/3r1q2/NBB2QNQ/2P2P1P/rb1NR1b1 b - - 0 1 illegal: No proof kernel
3B4/b2K2kQ/2P5/2PBN1Pq/3r4/b2qB2B/bBR1Bnq1/rbnB1N2 b - - 0 1 legal: proof: d4 c5 dxc5 e5 a4 b5 axb5 Qc7 f4 Qb6 fxe5 Qd8 c4 g5 b4 d5 h4 Ba6 hxg5 Bh6 c6 Bg7 c5 Bf8 Ra2 Bb7 Rc2 Bc8 Rc4 dxc4 Kf2 h5 Ke3 a5 Kf4 f5 e4 Kf7 g4 a4 g6+ Kg7 b6 c3 g5 a3 b7 a2 e6 a1B Ke5 f4 e7 c2+ Bb2 c1Q e8B h4 b5 f3 b6 f2 Be2 f1Q Nf3 h3 Qd7+ Be7 Ke6+ Nf6 e5 h2 Nbd2 Qg2 Nf1 Na6 b8B Nb4 b7 Nd3 Bc7 Ne4 b8B Rh4 Bf7 Qh8 Bd8 Qb1 Rg1 h1B Bg8 Qf2 Rg2 Nc1 Bd1 Qg3 Rc2 Qg2 Be2 Ba6 Qa7 Qh6 Kd7 Qh5 Bd5 Nf2 e6+ Rd4 Bf4 Bc4 Be3 Ba2 Ne5 Bd6 e7 Bb8 Qc7 Raa4 e8B Ba7 Bf7 Ra6 Be6 Ra5 Bh3 Raa4 Bc3 Bb2 Bd1 Ba3 Bb2 Qh2 Be2 Be4 Qb7 Qg2 Qc7 Kh8 g7+ Kh7 g8B+ Kg7 Bge6 Ra6 B6g4 Bg6 Rc3 Qd3 Qb7 Qb5 Bd1 Bgb1 Rc2 Qd3 Bge2 Kf8 Nh2 Bb4 Nf7 Bb3 Ke6 Ra1 Nf1 Ba3 Ne5 B3a2 Qd7 Kg8 Kd6+ Kf8 Qf5+ Kg7 Kd7 Ng4 Qe4 Nf2 Qh7+
KRQ5/N1pr1n1N/NB2b3/3Nq1N1/P1PR3r/1PN4p/n1k1qp2/3N3q b - - 0 1 legal: proof: g4 e5 f4 g5 fxg5 e4 h4 e3 g6 Bh6 g7 Nf6 g5 Ng8 g6 Bg5 dxe3 Bf4 e4 Bd6 e5 Bf8 e3 b5 Qd4 Be7 Qd1 Bg5 hxg5 b4 Qd4 a6 Bc4 a5 a3 a4 Ba2 b3 Qa7 bxa2 Qxa4 Nc6 Qa7 Nb8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kc5 Ke4 c4 Kd3 a4 h5 e4 f5 b3 d5 e6 d4 e5 f4 e7 f3 e8N h4 e6 f2 e7 Rh6 Qa6 Rh5 Nd6 Rh7 e8N Nh6 g8N Rh8 g7 Bh3 g6 Nf7 Nh6 Qg5+ Nhf5 Qh6 g8N Kc2 g7 d3 Nc8 d2 Nf3 d1Q Na7 Qe2 Ne3+ Kd3 Ne7 Bg4 g8N Rh7 N7d5 Qd2 Ng7 Nc6 Nbc3 Qf4 Ne6 Ncd8 Ngf6 Qh6 Ned1 Qc2 Be3 Qe2 Qc8 Nc6 Nfg5 Kc2 Rh3 Rh8 Nfh7 Nb4 Kb5 Qf6 Bb6 Qfe5 Nc5 Be6 Na6 Rd8 Rd3 h3 Rd4 Rd7 Rb1 a1Q Rb2+ Kc1 Rbd2 Na2 Kc6 Qb1 R2d3 Kc2 Kb7 Qc1 Qh8 Re8 Rg3 Ree7 Qc8 Re8 Ka8 Rh8 Nhf6 Rh4 Nfh7 Qa1 Rf3 Nd8 Rf8 Nf7 Qb7 Qb1 Rb8 Qc1 Qc8 Qb1 Nb2 Qh1 Nbd1
N1N2r1n/Npp1Bn1N/r5n1/N2Np1R1/b1R1p3/PPK1nN2/1Q1P3k/8 b - - 0 1 illegal: No proof kernel
1N3B1K/3rn1B1/7b/1bBkP2p/QB4nP/3nqR2/2rRBP1r/q1rB1B2 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 f4 Nc3 e6 Nd5 f3 gxf3 exd5 f4 d4 f5 Qf6 Qd2 Qg5 Qd1 Qd8 Kd2 Ke7 Kd3 d5 b4 h5 c4 a5 e4 g5 h4 g4 e5 a4 f6+ Ke6 f7 a3 b6 a2 b5 g3 c6 g2 b7 Bd7 c5 Bh6 f8B Na6 b8B Qg5 b6 Qg7 b7 Be8 c7 Bd2 c8B+ Qd7 c6 Bh6 c7 Rh7 Nf3 g1R Ba7 Rg2 b8B Rf7 Rh3 Rh2 Bac5 Ne7 Qa4 Ra7 Rb1 a1Q Rb2 Rf6 Rd2 Nb4+ Ke2 Rf4 Ba6 d3+ Ke3 Qd6 c8B+ Rd7 Bg7 Qb6 Bd6 Qa7 Rg3 Qb6 Ba3 Rc4+ Rg5 d4+ Ke4 Rc2 Rg3 Nbd5 Bab4 Ne3 Bcb7 Ng4 Bb5 Nf5 Bdf8 Ne7 Be2 Qa7 B7a6 Qb6 Bd1 Qa7 Re2 d2 Rh3 d3 Nd4+ Kf7 Nc6 Ke6 Rf3 Qb6 Nb8 Qa7 Ree3 Qb6 Be2 d1R Bc6 d2 Rd3 Rf1 Ba8 d1N Rd2 Rfh1 Bf1 Rg1 Bae2 Nb2 Bb7 Qa7 Bd1 Rgh1 Bba6 Rg1 Bae2 Nd3 Na6 Rb7 Nb8 Bb5 Bc3 Rgh1 B3b4 Rd7 Bf6 Ng6 Bg2 Rc4+ Bd4 Ndf4 Bc2 Re1 Bf1 Rc1 Bcd1 R4c2 Be3 Kf7 Kf5 Nd3 Bd4 Bg7 Kg5 Ke6 Be3 Ne7 Bb6 Nd5 Kg6 Bh6 B6g7 Ne7+ Kh7 Kd5 Be3 Q7d4 Kh8 Qe4 Ba7 Qe3 Bac5
1q1Nq3/Q1BkB3/4r2R/n2BP1BB/2bK2p1/1Rn3PB/1BP5/r1bnq2q b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 h5 d4 e5 fxe5 h4 dxc5 Ke7 Nc3 Ke8 Ne4 Qf6 Ng3 Qg5 Nh5 Qd8 g3 h3 Nf4 Rh7 Ng2 hxg2 Kf2 Rh3 Ke1 Rh8 Kd2 f5 Kc3 d5 e4 g5 h4 a5 b4 f4 b6 f3 b5 f2 c6 g4 h5 a4 h6 a3 h7 a2 c7 Qd6 e6 Nd7 b7 Ke7 b8B Ra5 b6 Ne5 b7 Nf6 Nf3 g1Q Rb1 Nc6 Rb3 Bh6 Nd4 Re8 Bh3 f1Q h8B Qb5 Bg5 Qe1+ Qd2 Bd7 c8B Ra7 Bc7 Na5 b8B a1Q+ Rb2 Qba4 Bb7 Bb5 Rh2 Qac1 Rb3 Bc4 Bc6 Qh1 Qe3 Ra6 Qf2 Qd8 Ba7 Qb8 Bab6 Qcf1 Bd8+ Kd6 e7 Ra7 Ba8 Kd7 Ne6 Qe1+ Kd4 Ra6 Bdc7 Qb5 e5 Ne4 Nd8 Nc3 Bhf6 Qc6 Bc5 Qe6 Bc1 Bd2 Bb2 Bc1 Bg5 Qf7 Bca3 Qh5 Kc5 d4 Bd5 d3 Kd4 d2 Bb4 d1N B4a3 Rg8 Qe3 Rgg6 e8B+ Kc8 Qg1 Rge6 Bae7 Qh8 Bh5 Kd7 Rf2 Qe8 Rf6 Nb7 Qe3 Ra1 Rh6 Na5 Rb6 Na2 Qa3 Nac3 Rb3 Ba6 Qc5 Bc4 Qa7
r1RK3R/N3p2R/Pk6/B1nRPrR1/bP4q1/6bp/2RRN2n/n1n2nQ1 b - - 0 1 illegal: No possible last move
r2bN3/pnr1Q3/K2P1bNk/P1rN1n2/1p1N4/nPNNB3/1N3q2/2Rn3R b - - 0 2 illegal: No possible last move
NbN1n3/2N2B2/1r3P1Q/1bnpR1Np/2rqbb1P/4kP1q/1N2N3/4KNR1 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 g5 d4 f5 dxc5 g4 Bg5 g3 Kd2 Qc7 Be3 Qb6 exf5 Qc7 f3 Qd8 Bf2 gxf2 b4 Kf7 c4 Kf6 h4 Ke5 g4 Kd4 g5 a5 b6 h5 c6 e5 b5 e4 f6 d6 b7 a4 g6 a3 c7 a2 b6 Be7 c5 Bf5 c8N Qe8 g7 Qc6 Ne2+ Kc4 Rg1 Nh6 g8N Nf7 Nh6 Na6 b8N Qd7 c6 Nc5 c7 Ra6 b7 Rb6 Na6 d5 b8N Bh7 Nc6 Bd6 Ncb4 Qh3 Nd3 Rf8 Bg2 f1B Ke1 Bf4 Qd2 Nd6 Nf7 e3 Ng5 Be4 Qc1+ Kb3 Nb2 Ne8 Nbc3 Rg8 Ng3 Bb5 Nf1 e2 Qe3 Kc2 Rd1 Qf5 Bh3 a1Q Bg4 Qd7 Be6 Qa4 Bf7 Qd4 Ra1 Qh3 Rb1 Rb7 Nb6 Rg7 Nh7 Rg4 Na8 Rb6 c8N Bb8 Qh6 Bf4 Nba4 Kd3 Ng5 Bb8 N6c7 Rf4 Nd2 Ke3 Nb2 Bg6 Nba4 Kd3 Rc1 Qe5 Nf1 Rc4 Kf2 Qd4+ Ne3 Bh7 Rce1 Kd2 Nb2 Bb1 Rg4 Bh7 Re4 Bg6 Re5 Be4 Ra1 e1B+ Kg1 Bb1 Ne2 Be4 Rb1 Bg3 Ra1 Bf4 Kf2 Qd3 Rg1 Qc3 Nbd1 Kd3 Nf1 Qd4+ Ke1 Rc6 Nh2 Rb6 Nb2+ Ke3 Nf1+
1Nk2bBN/6N1/5P1p/1nn1prNN/rr1PPq1q/3R2rQ/2b1K3/N1R1N3 b - - 0 1 legal: proof: h4 f5 a4 g5 hxg5 b5 axb5 f4 c4 d6 b3 Bg4 Bb2 Bf5 e4 d5 cxd5 Bd7 Bd4 Bc8 Be3 fxe3 f4 Kd7 g4 a5 d4 e5 d6 c5 b6 c4 g6 h6 b4 c3 f5 e2 b7 a4 g7 c2 b5 c1R b6 a3 g5 a2 g6 Ra5 Rh3 Qe7 Nd2 Rd5 Ngf3 Rc2 Rc1 a1Q Ng5 Qb2 Rd3 Rc6 Nb3 Rcc5 Na1 Rc4 Qb3 Kd8 d7 Nf6 g8N Qea3 g7 Ra4 Ne7 Rg8 Ng6 Na6 b8N Rb5 b7 Rbb4 Nh8 Nc7 Na6 Nb5 b8N Qd2+ Kf2 Bb7 Nc5 e1R+ Kf3 Kc7 d8N Kc8 Nde6 Bc6 Bh3 Rh1 Bg4 Qf4+ Ke2 Rg1 Bh5 Rg3 Bf7 Nd7 Qc3 Be7 Qb3 Rd8 g8N Bf8 Nf6 Bd5 Qc3 Bb3 Ng7 Bc2 Nfh5 Re8 Qb3 Re6 Bg8 Rf6 Nce6 Rf7 Nf3 Nc5 Neg5 Rf6 Ne1 Qh4 Rcd1 Qc1 Qa3 Qcf4 Rc1 Rg6 f6 Rf3 Nh7 Rg5 Qc3 Rf5 Ng5 Rh3 Qd2 Rf3 Qe3 Rg3 Qf3 Bb3 Qg2 Bc2 Qh3
r7/R2nqB2/3b2pp/QRN1rPRR/rn2rq2/R6b/1P2k1PB/4RRK1 b - - 0 1 illegal: No proof kernel
2BB4/qrRp4/1rp1PBBk/bN1P2bB/r1np3Q/3B2P1/1nB1N3/1b4K1 b - - 0 1 illegal: No proof kernel
k1RB2N1/qR2PP2/6Q1/p2nR1K1/Pb3N2/2p1r2p/1q1rR1bn/Rr3RR1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 h4 Bf8 hxg5 f5 e4 Nh6 e6 Bd6 e5 Bf8 Bd3 Ng8 Be4 fxe4 Ke2 h5 Ke3 a5 Kf4 d5 g4 c5 a4 e3 b4 d4 e7 Kd7 e8R Kc7 e6 Kb7 b6 c4 g6 c3 g7 e2 b5 e1R g5 h4 g6 d3 Ne2 d2 Rf1 h3 Qc2 d1Q Nd2 Ne7 g8R Bd7 g7 Qc7+ Kg5 Rh6 f4 Nc8 f5 Ba3 f6 Be7 Qg6 Bd6 f7 Ra7 Nf4 Bc6 Ne4 Ne7 Nf6 Nd7 Rgf8 Be4 g8R Ne5 Rg7 Ra8 Ng8 Qc2 Rc8 Rh4 Rfe8 Rb8 Bd2 Ka8 b7+ Ka7 Bc1 Re3 Bd2 Nd5 b6+ Ka6 Re7 Qb2 Rce8 Rd8 b8R Qa7 b7 Bg2 Rc8 Ng4 b8R Nh2 Rbb7 Bb4 Be1 Nf6 Bg3 Rd2 Bf2 Nd5 Bg1 Re1 Bb6 Rb1 Bd8 Rh6 Rec7 Rh8 Rc4 Rh4 Re4 Rh8 Re2 Rh4 Nd3 Re4 Nf4 Re3 Rc5 Nc7 Re5 Nd5 e7+ Qb6 Rb8 Ka7 Rb7+ Ka8 Rh7 Bd6 Rh4 Ba3 Rg4 Qa7 Rf8 Bb4 Re8 Bh1 Rgg1 Bg2 Bb6+ Qb8 Rd8 Rf3 Rc8 Re3 Rc6 Qa7 Bd8 Ba3 Rc5 Bb4 Rc8+
1q2b1NB/1prknqBq/6B1/n2B1B1p/KQB2p1P/1P3R2/2B1P2r/n5N1 b - - 0 1 illegal: No proof kernel
n2N4/1N3pQR/2K2b1N/Rr2PN1p/3N1knP/3n1Pbp/N1B4N/2n1qb2 b - - 0 1 illegal: No extended proof kernel
1N2Kn2/1q1p1p1k/p1Q4r/3BR2b/2RpN1P1/1RnPR1R1/P3b3/3R1bRr b - - 0 2 legal: proof: g4 e5 h4 c5 b4 g5 hxg5 Nf6 bxc5 Ng8 Bb2 Bd6 Bd4 exd4 Rh2 Nc6 Rh1 Bg3 fxg3 Nb8 Kf2 Kf8 Kf3 Kg7 Ke4 b5 Ke5 h5 Kd6 b4 c4 h4 e4 b3 c6 b2 c7 a6 c5 h3 d3 h2 e5 Kg6 e6 Kg7 e7 Qe8 c6 Nh6 g6 Qd8 e8R Bb7 c8R Rf8 c7 Be4 g5 Nc6 Qc1 Bd5 Nc3 b1B Re3 Qe8 Bg2 Na5 Nf3 Qe4 Rb8 Ng4 c8R Nf2 Rb3 Nc6 Rg1 h1B Ne5 Nd8 Ke7 Nd1 Rc4 Ne6 Nc6 Rh8 Nb8 Rh6 Ke8 Bc2 Rge1 Kh8 g7+ Kh7 g8R Bc6 Bf3 Bg2 R1e2 Qd5 Ne4 Nc3 Qh1 Qb5 Rd1 Nf8 Ree1 Bf1 Qg2 Rh1 g6+ Kh6 g7 Kh7 Nc5 Be2 Bd5 Qb7 Re5 Bf1 Ne4 Rh6 Re3 Rh1 Rde1 Bd1 Qc2 Bg4 Rd1 Bge2 Rh8+ Kg6 Rh3 Bh5 g8R+ Kh7 g4 Be2 Rg1 Bf1 Rhg3 Ba4 Rb1 Bb3 Qg2 Bd1 Rg6 Bf3 Rgb6 B3e2 Rd1 Bg6 Ke7 Rh6 Rb3 Bh5 Nc6 Rc8 Nb8 Rcc6 Ke8 Rcf6 Rd2 Rf2 Qf3 Rh2 Rd1 Rh4 Qf6 Rh1 Qc6
nqr3Rn/2Nb2pk/ppp4B/3BBp2/1N5r/1P2K1P1/B4B1P/Q3BB1r b - - 0 1 illegal: No extended proof kernel
1Qr5/2N1K1np/p7/P3n2N/1QN3p1/P1R1R1Nk/PQq1q3/nR3B2 b - - 0 1 illegal: No possible last move
6n1/1P4r1/kq5q/BB3QQr/Rbr1PN2/3R2K1/RbBQPrB1/4n3 b - - 0 1 legal: proof: b4 b5 a4 e5 h4 d5 c4 a5 bxa5 g5 cxd5 b4 hxg5 e4 a6 e3 fxe3 Nd7 e4 Nb8 Na3 Bd7 Nc2 Bb5 axb5 Qd6 b6 Qf6 Nd4 Qd6 Nc6 Qd7 Nd8 Qxd8 Kf2 Kd7 d4 Kc8 g4 h5 a7 Kb7 d6 c5 d5 f5 g6 b3 d7 h4 g7 b2 d6 b1Q g5 f4 g6 f3 Ra4 h3 Bg2 c4 Bd2 h2 Qf1 c3 Kg3 f2 Nh3 c2 Nf4 c1B Ba5 Ka6 b7 Qdb6 d8Q Nc6 d7 Rc8 Qg5 Rh7 d8Q Ne5 Qd2 Bb4 Rg1 h1R a8R+ Qa7 Ra2 R1h5 Rh1 Rc7 Rh3 Rc4 Ra4 Nd3 Ra2 Nf6 g8B Ne1 g7 Bb2 Bf7 Qd1 g8B Rg7 Be8 Qc1 Bd5 Ng8 Bdc6 Rh8 Ba4 Rhh7 Bc2 Rh5 Qg1 f1R Qc5 Rf2 Qf5 Rd4 Rc8 Qb6 Rc4 Bd6 Rca4 Bb4 Kg4 Rc4 Rd3 Qg6 Kg3 Qh6 Bb1 Qc3 Bc2 Qd4 Bc6 Qb6 Bb5+
r2rrr1N/q1Nb2b1/1R6/1nQq4/P2Q1N1K/2R1qP1R/4PQ1B/1kR5 b - - 0 1 legal: proof: g4 d5 d4 e5 c4 h5 gxh5 a5 cxd5 a4 b3 Qd7 bxa4 Qd8 dxe5 b5 a3 f5 Ra2 b4 Bh3 b3 Bg4 Na6 Ra1 Nb4 axb4 fxg4 h4 Kf7 f3 c5 Kf2 g5 Kg3 c4 d6 Ke6 h6 Kf5 h5 b2 d7 c3 e6 c2 h7 Qc7+ Qd6 Qb6 d8Q Ne7 h6 Nd5 b5 Qc5 b6 Nc7 e7 Bd7 e8R Bg7 b7 Rf8 h8Q Qd5 b8R Nb5 Na3 b1R Bf4 c1R h7 Rc8 Nh3 Rd1 Q8b6 Rd2 Re7 Rce8 Qdc5 Rd3 Rac1 Rd2 Kg2 g3 Rc2 g4 Re3 Rd1 Rec3 Rd4 Bg5 Ke5 Nf4 Rd1 Rh3 Rd2 Kg1 g2 Kf2 Rd3 Kg3 g1Q+ Kh4 g3 Qa7 g2 Rb6 Qe3 Bd8 g1Q Bc7+ Nd6 Nb5 Rd4 Bd8 Rd1 Nc7 Nb5 Qa3 Kd4 Be7 Rd3 Bd6 Qb1 Qc1 Qb4 Qg1 Qa5 Qf2 Rd2 Qb7 Qa7 Qc8 Be5 Qg7 Rd3 Qg4 Bg7 h8N Rf5 Nh5+ Qe4 Ra3 Be6 Qd7 Rff8 Qe7 Rd2 Bh2 Rd3 Rd2 Kc4 Qg5 Rdd8 Rc3+ Kb4 Rdc2 Bd7 Qe5 Qc4 Qge4 Qcd4 Nf4 Qc4 Qc6 Qd5 Rc4+ Kb3 Qd4 Ka3 Qcc5+ Kb3 Rc1 Ka2 R4c3 Kb2 R1c2+ Kb1 Rc1+
2b2bR1/1Pkn1NQr/bP5b/PR1r2n1/rB3R1R/3NQ1Q1/nK2N3/8 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 Rh6 c4 Rd6 d4 Rh6 dxc5 Rh8 c6 a6 b4 Ra7 b5 Rh7 c5 Rh8 cxb7 Ra8 b6 Nf6 Bd3 Ng8 Bb5 axb5 Kd2 g5 Kc3 e5 f4 d5 h4 Kd7 a4 g4 h6 b4+ Kb2 e4 a5 b3 h5 e3 f6 d4 f5 d3 f7 g3 f6 d2 h7 g2 h6 e2 Rh4 e1R Nc3 Na6 b8Q Re2 b7 Qb6 Qg3 Nb4 Nh3 g1B Nf2 Na2 Rb1 Re4 Nd3 Ra4 Qe2 d1B Qee3 Be2 Bd2 Bf1 Rf4 Kc7 Ne2 Bf2 Bb4 Be1 Qg7 Bd2 Qeg3 Bf5 Qe3 Rd8 Qgg3 Bc8 Rh4+ Rd6 Rf4 Rd5 Rh4+ Bd6 Rf4 Be7 f8Q Bd6 f7 Nf6 Qfg7 Nd7 f8R Be7 Rg8 Bf8 Nec1 Be2 Ne1 Ba6 Ned3 Nc3 Ne2 Ne4 Rh4+ Bd6 Rf8 Ng5 Rff4 Be7 Rh5 Bf8 Rhh4 Rg8 h8N Bc1+ Kc3 b2 Nf7 Rh8 h7 Bd2+ Kb3 Bc1 Ra1 b1N Ra3 Rg8 h8R Nc3 Ra1 Bd2 Kb2 Na2 Rd1 Qb5 Rb1 Qb6 Qgd4 Rg7 Rg8 Rh7 Qg7 Bc3+ Kc2 Bf6 Rb3 B6e7 Kb2 Bd6 Be1 Bde7 Rb5 Bd8 Bb4 Bde7 Qf6 Bh6 Qg7 Bf8 cxb6+
5nB1/3P1r1b/NB1qr2b/b4k2/RnNQ1PQ1/2p2BQ1/1N4Pb/3KB3 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 g5 h4 d5 hxg5 a5 bxa5 h5 c4 h4 cxd5 b4 Nf3 b3 Nh2 h3 axb3 Nh6 b4 Ng8 Nf3 h2 b5 Qd7 Ra3 Qd8 Rg1 Ra6 Ra4 Ra7 Rh4 hxg1B Rh1 Ra6 Nh2 Ra8 f4 Kd7 d4 c5 b6 e5 b7 c4 d6 c3 d5 e4 g6 e3 a6 e2 f6 Bg7 f7 Ra7 f8B Rh6 Nf3 Bh2 Nbd2 Qe8 Ne5+ Kd8 d7 Nc6 b8N Ra8 a7 Rh3 Ndc4 Rh8 Nd3 Bh6 g7 Nb4 Bd2 Bb7 Na6 Qe5 Ndb2 Rh7 Bc5 Nf6 g8B Qd6 Bb6+ Ke7 Rg1 Rc8 a8Q Re8 Rh1 Rf7 d8Q+ Kf8 Qac8 Kg7 Qh3 Kg6 Qg3+ Kf5 Qc8+ Re6 Rg1 Qc6 d6 Nh7 d7 Qd5 Qc5 Nf8 Qcf2 Qd6 Qff3 Kf6 Qfg4 Be4 Qa4 Bh7 Rh1 Bg1 Rh5 Bh2 Ra5 Qe5 Qd1 Qd4 Ra4 Qd6 Kf2 e1B+ Kf3 Nc2 Be2 Bf2 Be1 Nb4 Qd2 Bd4 Qe3 Be5 Kf2 Bd4 Bf3 Be5 Ke2 Bd4 Qg7+ Kf5 Kd1 Bf6+ Qd4 Bd8 Ba7 Ba5 Bc5 Re2 Bb6 Re6 Q7g4#
3B1N1r/3R1Q2/P3Q1PN/bbbN1B1k/2P2Q1n/5rbB/p3rn1Q/K7 b - - 0 1 legal: proof: e4 g5 a4 d5 b4 f5 exf5 b5 axb5 c5 c4 a5 h4 d4 hxg5 a4 d3 Qa5 bxa5 Bg7 Ra3 Bh6 Rc3 dxc3 d4 Bg7 dxc5 Bf8 f4 Kf7 g4 e5 c6 h5 b6 a3 f6 Kg6 c7 c2 Kd2 e4 Kc3 a2 Kb2 h4 f5+ Kf7 g6+ Ke8 g5 h3 f7+ Ke7 b7 e3 f6+ Ke6 a6 Kf5 g7 Kg6 Qd7 h2 Bh3 e2 Qe6 e1B Ka1 Kh5 g6 Bf2 Nf3 Bg3 Ng5 Bd7 c8B Ne7 g8Q Nf5 Rd1 h1R Nc3 Rh2 Nd5 Bc5 f8Q Nc6 b8Q Re2 Nf7 Nh4 Nh6 Ne5 f7 Bb5 Bg5 c1B Bd8 Ng4 Qfd6 Bd2 f8N Bdb4 Qf4 Ba5 Qef7 Ra7 Bf5 Nf2 Qe6 Re7 Qgf7 Re3 Qbe5 Rf3 Qe2 Nd3 Qh2 Nf2 Nb4 Re8 Rd7 Re7 Nd5 Re8 Qc6 Re2 Qce6
n2nKRQQ/5r2/R3QrRP/8/2P3kn/r2PB1b1/1NQq2bq/1Bq4B b - - 0 1 illegal: No possible last move
2Qr3n/2PNBN1q/3n1qQ1/Kb6/2Q1bB2/1B1rN2R/bP3PB1/3n1rk1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 f5 exf5 g5 dxc5 b4 h5 b3 axb3 Qc7 b4 Qb6 b5 Qd8 g4 Nc6 h6 Bg7 hxg7 Ne5 Rh4 gxh4 g5 Ng4 g6 N8f6 g8B Ne5 g7 Nc6 Ra3 Nb4 Rh3 Nc6 Rh1 Nb8 Kd2 d5 Kc3 Kd7 Kb4 h5 c4 e5 c6+ Kd6 b6 a5+ Ka4 h3 c7 e4 b7 Ke5 c5 d4 c6 h4 Qf3 e3 Qg3+ Ke4 Bb5 e2 Qb3 e1R Bf4 h2 Qc3 d3 Bg5 h3 Ne2 Kf3 Ng3 Kg2 Ne2 d2 Bh6 d1N Ba6 Ne4 f6 Rf1 f7 Nd6 f8N Bd7 c8Q Qf6 Bf7 Be6 c7 Nd7 b8B Ne5 g8Q+ Ng6 Ng3 Ba2 Nd7 Ra7 Qg7 Rd8 Na3 Nh8 Qc4 Rb7 Bg8 Rb3 Ba7 Rd3 Bg5 Ne4 Kb5 a4 Nc2 a3 Ka5 Nd6 Ne4 Re1 Rf1 h1B Qg6 Kh2 Rg1 Rf1 Rg3 Bf3 Bb5 Be2 Bc5 Kh1 Bce3 h2 Rh3 Kg1 Bc6 h1B Bgf4+ Bg2 Ng5 Be4 Ba8 Bb1 Bb6 a2 Bc5 a1Q+ Ba3 Ba2 Ne3 Qb1 Bc5 Bf5 Bg2 Be4 Nf7 Rc3 Qb4 Bb5 Qc4 Rd3 Ba3 Qc2 Bb4 Qe2 Bc5 Qh5 Ba3 Qh7 Bb4 Ne8 Be7 Nd6 Qd5 Qhh4 Nh6 Rc3 Qd4 Qh5 Bb3 Rd3 Nf7 Qh7 Qc4
3Bb2N/Q1Nn4/P1b2n2/7k/Br1nn1q1/B2KBnPr/2QPN3/R1r4Q b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 f4 d5 cxd5 a4 f6 a3 bxa3 Na6 a4 Nb8 a5 Be6 Be2 Bh3 Bf1 Bc8 g4 Be6 a4 Bc8 f5 Bh6 Ra3 Na6 Rf3 Nb8 Rf4 gxf4 Kf2 Bg5 Ke1 Bh4+ Ke2 Bg3 hxg3 Be6 Ke1 Bc8 d6 Kf7 Ke2 b5 g5 c5 d7 e5 a6 h5 a5 f3+ Kd3 b4 a7 f2 a6 c4+ Ke2 e4 Qc2 c3 Ke3 h4 Be2 f1N+ Kd4 b3 Bf3 e3 Nh3 b2 Nf4 e2 Na3 b1N Bc6 e1N Ne2 h3 Ba4 h2 Nb5 Ne3 Nc7 Nf3+ Kd3 Rh3 Ba3 Bb7 Re1 Qc8 d8B Nd7 Rf1 Rb8 a8Q h1B Qa7 Ba8 Rc1 Rb4 g6+ Kf8 f7 Kg7 f8N Kh6 f6 Kh5 g7 Bc6 f7 Nf5 Rg1 N5d4 Ng6 Ngf6 g8Q Bg2 f8B Bh1 Qca2 c2 Nh8 c1R Bh6 Nc3 Qc2 Nce4 Be3 Bg2 Qe6 Bh1 Be7 Qg8 Bd8 Qg4 Qg8 Nb8 Qgc4 Be8 Qd1 Nbd7 Qcc2 Rcb1 Qf1 Rd1 Qg2 Rc1 Qh2 Bg2 Qh1 Rd1 Na8 Nec5+ Kc3 Nh2 Rf1 Bc6 Nc7 Nce4+ Kd3 Ra1 Rb1 Nhf3 Rb2 Rg1 Rb1 Rc1 Ra1
3bR2n/NN3nPk/4K3/Qb3R1n/Rn1P1Pq1/6N1/1r1r1n2/Q1Qr1B1R b - - 0 1 legal: proof: a4 b5 axb5 d5 c4 f5 cxd5 g5 e3 f4 exf4 g4 f3 Bd7 Ke2 Be6 Ke1 Bc8 fxg4 h6 b3 Qd6 g5 Bg4 g6 Qf6 g7 Qg5 Bb2 Bh3 g4 Qf6 g5 Bc8 g6 Qd6 Bf6 Qd8 Bg5 hxg5 Ke2 e5 Kd3 c5 Ke4 a5 h4 a4 d4 g4 b4 g3 b6 g2 b5 c4 d6 c3 Kd5 a3 b7 e4 h5 e3 h6 e2 b6 e1N h7 a2 Rh3 c2 Rc3 c1N Ne2 g1N Na3 Qd7 Re3+ Be7 Qd2 Ngf3 Qb2 Ng5 Rc3 Qg4 Nb5 Bd7 Rg3 Na6 b8R+ Bd8 b7 Ncd3 Na7 Ne5 Qc1 Bb5 d7+ Ke7 Ra3 Kf6 Ra5 Nef7 Ng3 Nd3 Rc8 Nf2 b8Q Nd1 Rc5 Nf2 Qc7 Rb8 Ra4 Rb7 Rb1 a1R Qa5 Ra2 Ra1 Rd2 Rb1 Be2 Rba1 Rbb2 Rb1 Bb5 Rba1 Ngh6 g8Q Nge4 g7 Kg6 Qe8 Rd1 Qe5 Re8 h8R Re6 Re8 Kh7 Qh5 Nh8 Qh1 Rc6 Ke5 Nf6 Rd5 Nb4 Rc5 Be7 d8N Nh5 Nb7 Bd8 Rd5 Rc3 Kd6 Rf3 Rf5 N6f7+ Ke6 Rc3 Qd5 Rcc2 Qa2 Rcd2 Rb1 Ba6 Qa1 Bb5 Qc2 Nh6 Bg2 Rh1 Rg1 N6f7 Qcc1 Rh2 Bh3 Rg2 Rh1 Rg1 Bg2 Rgd1 Bf1
K1bQ2b1/1B5k/P3RP2/1RQqB2b/2B1r3/Q1n1Rnnb/5P2/r1N1r2Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Bg7 h4 Bh6 h5 Bf8 Na3 Nb8 g4 Be6 h6 Ra7 Nc2 Ra8 Nd4 Kd7 Ndf3 Nf6 Nh4 gxh4 g5 Bg8 g6 Ke8 g7 Be6 g8B Bg7 hxg7 Bc8 Ke2 c5 Kd3 e5 Kc4 h5 Kb5 e4 a4 h3 d4 h2 d6 h4 a6 h3 a7 e3 a5 c4 d5 e2 Qc2 e1R Bh7 Kf7 g8R c3 d7 Nc6 d6 Nd5 f6 Ne5 Rb1 Nf3 Be4 Rh4 Kc5 b5 Kc6 b4 Qa2 c2 Bc4 b3 Re8 b2 Re6 Kg8 Bf4 c1N Qa3 Ne2 Be5 Ng3 Ne2 Nc3 Nc1 Rf4 Bed5 Kh7 Rg1 Qg8 d8Q h1B d7 h2 Qc7 Rfe4 d8Q+ Qf7 Kb6 Bg2 Bb7 h1B Qcc5 Bh3 Ka6 Qd7 Kb6 Qd5 a6 Rb8 a8Q B1g2 Ra1 b1B Ka7 Ba2 Rb1 Bg4 Rb2 B2h3 Rb5 Bh5 Rh1 R1e3 Rd1 Re1 Rd3 Bb3 Re3 Ba2 Bc6 Rb6 Bb7 Bb3 Kb8 Ba2 Ra5 Rb1 Rb5 Bb3 Qaa7 Ra1 Ka8 Ba2 Qc6 Bb3 Q7c5 Qd4 Rb4 Nh2 Re8 Rg4 Qh1 Re4 Rb5 Nf3 Bf1 Bg8 Bc4 Qd5 Re6
NN5B/2B5/1Nr5/R1q1P1b1/1PP1rnK1/5BB1/nQ1knrQ1/3qbn1Q b - - 0 1 legal: proof: b4 b5 f4 c5 d4 f5 dxc5 e5 fxe5 h5 g4 f4 a4 Bb7 axb5 Bc6 Ra6 Bb7 Rg6 Be4 Rg5 Bf5 gxf5 Rh7 Rg2 Rh8 Rg4 hxg4 Kf2 Ke7 e4 a5 h4 d5 c4 g5 e6 Kf6 b6 Ke5 e7 d4 e8N f3 Kg3 a4 c6 d3 f6 Kd4 h5 a3 e5 d2 c7 Ke3 c8Q a2 h6 a1R h7 f2 b7 R1a2 f7 Nc6 b8B R8a6 Qe6 Be7 f8B Nf6 Bd6 Nd4 Nc7 Nd5 Nc3 Nf4 Qb3 Rc6 Bg2 Rg8 h8Q Nde2+ Kh2 Kd3 Bf3 d1N N3d5+ Ndc3 Nb6 Rc2 Qb1 Na2 Nca8 Kc3 Bb8 Qd1 Bg7 Rd8 Qhg8 Rd4 Qd5 Re4 Bh8 Rb2 Be3 Rc2 Bd4+ Kd2 Qb2 Bd8 Bc7 Be7 Nh3 Bd8 Rg1 Bf6 Nd7 f1N+ Kh1 g3 Nb8 g4 Bf2+ Nd4 Rg2 Bg5 Rh2 g2+ Kg1 Re6 Bg3 Rf6 Qb7 Rc6 Kf2 Nde2 Qg7 Ne6 Nf4 g1B+ Kg2 Bf2 Nd5 Be1 Ndb6 N6f4+ Kh1 Kd3 Rh6 Rd2 Rd6+ Ke3 Rd5 Rc2 Ra5 Kd2 Bh2 g3 Qh7 Nec1 Kg1 g2 Bg3 Ke3 Qh1 Rf2 Qb3+ Kd2 Qa3 Ne3 Kh2 Nce2 Qb3 Nh5 Kh3 g1Q Qb1 Nf1 Qa1 Nhf4+ Kg4 Rh2 Qb1 Qc5 Qb2+ Ke3 Qc8 Rf2 Qg8 Kd3 Qg2 Ke3 Qh7 Kd3 Qhh1 Ke3 Qa1 Kd2 Qb2+
5Q1Q/1n3nB1/2NQBn1r/k1P1b1Pq/1q2R1nQ/1B1N1b1P/K3N3/1r5r b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 f4 g5 fxg6 h6 f5 h5 g4 Bg7 b4 Qc7 g5 Qd8 Ra3 Bh6 Rg3 Bf8 Rg4 hxg4 Kd2 a5 Kc3 e5 Kb3 d5 c4 Kd7 f6 Kc7 f7 g3 c6 Kb6 g7 a4+ Ka3 d4 c7 e4 h3 g2 Qd2 e3 Qd3 e2 Bf4 e1Q Nc3 Nc6 Nce2 Bd6 f8Q Na5 Qe4 d3 Be5 d2 Ka2 d1N Nf4 a3 Nge2 g1N Nd3 Nf6 g8Q Nf3 Qh4 Bb7 c8B Qe8 Be6 Rh6 Qh8 Qh5 Rh2 Rb8 c5+ Ka7 b6+ Ka6 Rg2 Ne3 Rg4 Bd5+ Rc4 Nb7 b5+ Ka5 Ba1 Bc6 Re4 Qb4 Bc3 Be5 Qd6 Nd8 b7 Neg4 b6 Bd5+ Ka1 a2 Bb2 Rc8 b8Q Nb7 Bc3 Rg8 Qbf8 Bc6 Bb3 Rgg6 Kb2 a1R Bg2 Rh1 Ka2 Bg3 Bb2 Nfe5 Bf3 Nf7 Ba1 Nh2 Bg4 Be5 Bge6 Nhg4 Bc3 Nbd8 b7 Bd5 b8N Nb7 Rc4 Bf3 Re4 Rg8 Qfe7 Rc8 Qef8 Rc6 Bb2 Rb6 Nc6+ Ka6 Qd5 Qc4 Bc1 Bc3 Nb8+ Ka5 Bb2 Ne8 Qdd6 Bg7 Ba1 Qc3 Bbd5 Rbb1 Bb3 Qb4 Bc3 Bf6 Be1 Ba1 Bc3 Bb2 Bf6 Be5 Bg7 Nef6 Nc6+
r3q3/1R5n/2n1QRNP/r1nP1q2/1BkQ1B2/4P1Bb/1Rb5/1BK1Q1qn b - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 fxe5 Bd6 cxd5 Bb4 g3 Bf8 Nh3 h5 Na3 f4 Ng1 f3 Nc4 Be7 Ne3 Bg5 Ng4 Bf4 gxf4 hxg4 d4 Kf7 Kd2 c5 h4 g5 b4 a5 e6+ Ke7 f5 Kd6 e7 a4 e8Q f2 f6 c4 h5 a3 b6 g3 b7 a2 h6 g2 b5 g4 f7 g3 b6 Nf6 Nf3 g1N Qe1 g2 Ne5 Bf5 Rh2 Nh3 Ng6 Nc6 b8R g1Q b7 Bc2 f8B+ Qe7 Rb1 a1N Rb6 Ra5 Bg2 f1B Be4 Rg8 Rf2 Bg2 Rb2 Nh7 Rf3 Nf2 Rf6+ Kc7 Qf7 Nh1 Qe6 Qe8 Bb4 Kb6 d6 Kb5 d7 Bh3 d8Q Qg4 d5 Qf5 Qc7 Rf8 Qce5 Rh8 Qd4 Nb3+ Ke3 Nc5 Kd2 Bb1 Kd1 c3 Bf4 c2+ Kc1 Rg8 e3 Rf8 Rd8 Rg8 b8B Rf8 Qdd1 Kc4 Rd7 Rg8 Bg3 Rh8 Rb7 Rf8 Kd2 Rh8 Bbf4 c1Q+ Ke2 Bc2 Qdd2 Bb3 Bb1 Bc2 Qf2 Qg1 Qfe1 Qd8 Qdd1 Qd7 Kd2 Rha8 Kc1 Qe8 Qd4+
b2R1bn1/3B3P/Q1BQ1R1Q/2PBq3/r2b2k1/1b1n1Nrq/2PKR3/4n1B1 b - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 h5 g5 g6 Nd2 Qb6 Ndf3 Qd8 Ne5 Bh6 fxg6 Bf8 Ng4 hxg4 f5 Qb6 Ke2 Qc7 Ke1 Qd8 b4 e5 h4 Ke7 b6 a5 b5 d5 f6+ Ke6 g7 Kf5 f7 e4 g6 d4 b7 a4 b6 a3 h5 a2 h6 d3 h7 g3 Rh6 g2 Qe2 e3 Nf3 g1B Bh3+ Kf4 Bd7 Na6 b8R Nb4 b7 d2+ Kd1 Ra4 Qa6 Qe7 Rh2 Qe8 Re2 Qe6 Bb2 Kg4 Bd4 Qf5 Rb1 Nd3 Rb6 Bf2 Rf6 Bg1 Bc6 Be6 Rd8 Bb3 b8Q Qh5 Qd6 Qh3 Bb2 a1Q+ Bc1 Be7 f8Q Qc3 Bb2 Qe5 Bd4 Bf2 Qf7 Bf8 Qfb7 Nh6 g8B Bg1 Bf7 Rg8 Qbb6 Rg7 Bfe8 Ng8 Rf2 Nb2+ Ke2 d1B+ Ke1 e2 Kd2 e1N Re2 Nbd3 Be3 Ra7 g7 Re7 Bed7+ Re6 Bf4 Bf2 Bh2 Bd4 Re3 Be2 Bg1 Bf1 Re2 Bg2 Rf5 Rg6 Rf6+ Kh5 Qbb7 Rg3 Qbb6 Ne7 g8B Bh1 Bgd5 Ng8 Re6 Kg4 Rf6+ Qf5 Qb4 Nh6 Nh2+ Kh4 Bg8 Qe5 Bb5 Ba8 Bd5 Ng8 Nf3+ Kh5 Qc3 Nf4 Qe3 Nfd3 Bbc6 Nh6 Re6 Ng8 Qh6+ Kg4 Rf6+
n3r1Bb/1PB1nNP1/1B4b1/2kN4/3R1B2/2KQNnqb/Qr1Pp3/1r2Q3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 h4 g5 hxg5 a5 b4 Kd7 b6 Ke8 b5 Ra6 Ra4 Ra8 Rb4 axb4 f4 Kd7 g4 Kd6 g6 c5 g7 e5 f6 h5 f5 b3 b7 b2 f7 h4 b6 h3 g5 h2 g6 c4 f6 c3 Nh3 c2 Nf4 e4 Ke2 e3 Kd3 Ne7 g8Q Qd7 Ng2 Rh3 Kc3 Qb5 Qe1 Ra6 Bc4 e2+ Ne3 Nd7 b8B+ Kc5 d6 Ra8 b7 Ra1 Bc7 Nb8 d7 Ra2 d8N Bg7 f8Q Bh8 g7 Nd7 Nf7 Nb6 Qd8 Na8 Qd3 Bf5 Rf1 h1B Rf4 Bg6 Rd4 Bg2 Ne5 Qd7 Kb3 Rh4 f7 B6e4 Rd6 Nc8 Nc3 b1R+ Bb2 Bh3 f8B c1N+ Kc2 Qg4 Be7 Bc6 Bg5 Qg3 Qe6 Rh6 Bf4 Be4 Rd7 Rh5 Qa6 Nb3 Bg8 Bg6 Nf7 Re5 Rd6 Na5 Rd8 Nc4 Rd4 Re4 Ncd5 Re8 Qa4 Ne7 Kb3 Rd1 Bc3 Ne5 B3a5 Rb1+ Kc3 Rab2 Qa2 Nf3 Bab6+
1bnb1K1k/r2Br3/QB1P2P1/p1RQ4/1q1R2nP/Q2Q4/6nN/1R2Bn1n b - - 0 1 legal: proof: c4 g5 d4 b5 f4 d5 fxg5 Kd7 cxd5 b4 e4 b3 d6 Ke6 d7 Bh6 axb3 Kd6 b4 Bg7 b5 Bf8 g4 Ke6 g6 Kf6 d5 h6 d6 Kg7 Nd2 Bb7 Ndf3 Bd5 exd5 h5 g5 Qc8 Ne5 Qd8 Ng4 hxg4 Ke2 a5 Kd3 e5 Kc4 c5 h4 f5 b4 e4 b6 g3 b5 f4 b7 g2 b6 e3 Qd3 f3 Rb1 e2 Bd2 f2 Be1 Qf6 d8B Rh7 d7 Nh6 Nf3 g1B Bh3 f1N Nh2 Nc6 b8Q Ra7 b7 Qe7 Qc8 Ng4 b8Q Kh8 Qd6 Bf2 Rb5 Bg3 Qa6 Bg7 Bb6 Bf6 d8Q+ Qf8 Q8d7 Bd8 Qa3 Re7 g7+ Kh7 Q6e6 Bb8 d6 Qf4+ Kd5 c4 g8R c3 Rc5 c2 Qee3 c1N Qdb7 Nd3 g6+ Kh6 Re8 Ndf2 Qed3 Kg7 Rf8 Qb4 Rf4 Kg8 Rd4 Kh8 Rg1 Nh1 Qa8 Red7 Ke6 Ne7 Kf7 Nc8+ Kf8 Rdc7 Qd5 Re7 Bg3 e1N Bf2 Nh6 Bd7 Ng2 Be1 Ng4 Bd2 Nfe3 Rb1 Nf1 Be1
3KNNn1/Q2B2N1/QNP3R1/b2P4/2k5/pbqbr3/rb2QRP1/n3b1R1 b - - 0 1 illegal: No possible last move
N2N4/1nq1B1Qr/2BB2q1/2PNqPQP/2R3rb/1p1n1K2/4Q2k/2Nq2b1 b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Kd8 f7 Kc7 bxa3 Kc6 a4 Qc7 a5 Qd8 a4 h5 f5 b6 f6 Ba6 Ra3 Bc4 Rg3 Bd3 Rg2 Bf5 gxf5 Ra6 Rg5 Ra8 Rg4 hxg4 Be3 e5 Kf2 g5 h4 d5 c4 b5 a6 b4 a5 b3 h5 d4 a7 e4 a6 d3 Bf4 d2 Rh4 Ne7 Rh3 Rh7 Rc3 Nc8 Ne2 Be7 f8B Nd6 f7 Nb7 Bg2 Nd7 Nc1 Ne5 Qg1 Kd7 c6+ Kd6 c7 d1Q c8Q g3+ Ke3 g4 Bh1 g2 Rc2 g3 Nc3 Qa5 Qe8 Qd8 Bg5 Nd3 c5+ Ke5 Bh4 Rc8 a8Q Rc6 Qc8 Rg6 a7 Qb6 a8N Qc7 Qcd7 Rgg7 Qf2 g1Q Qed8 g2 Bg5 Qgf1 Bh4 g1B Bf3 Qg2 Bg3+ Kf6 Bd6 Qg4 Bg2 Kg5 Bh1 Bf6 Q7e7 Rg6 Qe5 Be7 Qg7 Qg3+ Bf3 Qe5 Bg2 Kg4 Bh1 Bh4 Qdf6 Kh3 Bfe7 Qd5 f8N Qf7 Ne6 Rg4 Nd8 Qe6 Qfg5 Qg6 Kd4 e3+ Be4 e2 Ke3 Nb4 Bc6 Nd3 Nd5 e1Q+ Ne2 Rc4 Kf3 Rg4 Rc4 Qc3 Qfe3 Qe5 Qd2 Kh2 Qde3 Qd2 Nc1 Qd1+ Qe2+
R5K1/N1qB1B2/1Q6/1PQ5/rbPnNpP1/2n2r1B/kr1q2Qq/1n2BN2 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 f4 c5 fxe5 Bg7 dxc5 Bf8 b4 Bb7 g4 Ne7 Ra3 Nc8 Rf3 Ne7 Rf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Ng8 Kd2 Ke7 Kd3 Ke6 Kd4 h5 e4 a5 c4 f5 g6 d5 c6 f3 b6 f2 b7 h4 b5 a4 g7 f4 c7 h3 c8N a3 Bd2 h2 Na7 a2 Qe2 a1R Nf3 Nf6 Be1 Bb4 Nbd2 Rb1 Bh3 f1N Qg2 Qc7 g8B+ Ke7 e6 Kd6 e7 Rb2 Rg1 h1Q e8B Qh2 Ng5 Rh7 Bgf7 Nc6+ Kd3 Kc5 b8Q d4 e5 Nd5 Ke4 d3 Kf5 Nc3 Ke6 Rh8 Bd7 Nd4+ Kf6 Rh6+ Kg7 Ra6 e6 Ra3 e7 Ra4 Ndf3 d2 e8Q d1Q Qec8 Nd2 Kg8 Ndb1 Nd2 Qc2 Nf1 Qd2 Nc6 R8a6 Na7 Re6 Qbb7 Re3 Qa6 Rf3 Qf6 Ba5 Ne4+ Kb4 Qb6 Ka3 Qf8+ Kb3 Qfc5 Ka2 Qe2 Nc6 Rg3 Bb4 Qg2 Rf2 Rd3 Rf3 Rd5 Nd4 Re5 Qb8+ Re8 Qc7 Ra8
B5RN/B4Q1r/3P3q/nkBP3Q/2p3q1/n3BPRR/K1b3qn/1Q3rr1 b - - 0 1 legal: proof: e4 f5 exf5 b5 c4 d5 cxd5 b4 g3 h6 Nc3 e6 Ne4 b3 Ng5 hxg5 axb3 g4 b4 Bd6 b5 Bf4 gxf4 Kf8 Bd3 Ke7 Bf1 Ke8 b4 Kd7 d4 c5 Kd2 a5 Kc3 g5 Kb2 c4 h4 g3 h5 g4 b6 g2 f6 e5 d6 Kc6 f7 g3 f8B a4 b5+ Kd7 b7 a3+ Ka2 e4 h6 e3 h7 e2 b6 Kc6 Nf3 g1Q Ne5+ Kb5 Ng6 e1R Bg2 Qe7 Be3 Qh4 Qh5+ Bf5 Rh3 Nc6 b8Q Nf6 b7 Ng4 Rc1 Rf1 Rc3 Rg8 h8R Na5 Bh1 Rg7 Rg8 g2 Nh8 Ra7 Qg5 Kb4 Bd2 Rg6 Bh6 Be6 f5 Rd1 f6 Rb1 f7 Nh2 f8Q Bf5 Qg7 Qf4 Qh5 Rf1 Bc1 Rg4 Ka1 a2 Rcf3 Bb1 Ba3+ Ka4 Kb2 a1N Bc5 Nc2 Qgf8 Qf6 Be3 Na3 Qe7 Bf5 Ka2 Bc2 Qeh7 Qh6 Qbc7 Kb5 b8B Ba4 Q7f5 Rb7 Bba7 Rg3 Qch7 Rg5 Q7g6 Rh7 Qc2 Rg4 Qc1 Bc2 Qf7 Re1 Qd1 Qf1 Qa1 g1Q Qc1 Rf4 Bg2 Qe2 Rfg3 Qg4 Ba8 Qg2 d5 Rg1 Qe1 Rd4 Qa1 Rdd1 f3 Rdf1 Qb1+
3R1Q2/qr2q2B/1P3Nr1/rP1N4/nB2N1qk/n1p5/P5QB/K1bnN2Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 b5 gxh5 Nh6 c4 Na6 cxb5 Ng8 b6 Nb8 d3 c5 Na3 c4 Rb1 c3 b5 Bb7 Rb2 Bd5 Rb4 Bc4 dxc4 axb4 f4 Kf7 h4 Kf6 c5 d5 c6 e5 h6 g5 c7 d4 c8N e4 h5 d3 h7 g4 h6 g3 Qd2 e3 Kd1 b3 Nh3 b2 Nf2 b1Q Ne4+ Kf7 f6 Kg6 f7 g2 Nc2 g1R Ne1 Nf6 Qg2+ Ng4 Rh2 d2 Bd3 Ba3 f8N+ Kf5 Nd7 Ne5 Ndf6 Qb4 Kc2 d1N Rh4 Bb2 Kb1 e2 Rg4 Qc7 Rg8 Qa7 Rd8 Rf8 h8Q Na6 h7 Rf7 Qf8 Nc5 h8Q Rb7 Qhh1 Na4 Bc2 Ba3+ Ka1 Nc4 Bd2 Bc1 Ne7+ Ke6 Bb1 Na3 Ned5 Kf5 Be3 Qc4 Bf2 Qc8 Bg3 Kg6 Bh2+ Qg4 Nd7 Kh5 f5 Kh4 f6 Bh6 f7 Bc1 Nc2 e1Q N7f6 Qe3 Ne1 Qee2 Nd2 Qe7 Bh7 Qb8 Nde4 Ra5 Qh8 Qa7 f8B Rf1 Qg8 Rf5 Qg7 Rg5 Qg8 Rg6 Qf7 Qed7 Bb4 Qe7 Qf8
2k1KBnn/1P1r1B2/4BrqP/1P4r1/R1R5/2pr1N1R/1R1Q1b2/r2n1QQ1 b - - 0 1 illegal: No possible last move, all moves rejected
1n1q1qb1/6PR/NPRb1P1Q/q1QB3n/2qr1k2/1p5N/q3R3/1QN1Q1K1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Bg7 exf5 Na6 b4 Bb2 b6 Bg7 b5 Bh6 Ba3 Nb8 Bb4 Bf8 c4 cxb4 d4 a5 c5 Ra7 d5 Rc7 Qa4 d6 Qd1 Rc6 dxc6 d5 f4 Kf7 Kf2 h5 g4 e5 b7 h4 f6 Ke6 g6 e4 g7 b3 b6 h3 g5 Kf5 f7 d4 c7 h2 g6 a4 c6 d3 Bg2 a3 Ra2 d2 Ne2 Qd3 Qe1 d1Q Nc1 Rh7 Nc3 Qd8 Re2 Kg4 f5 Nf6 g8Q Bd6 f8Q a2 Qh6 a1Q g7 Nh5 f6 Be6 c8Q Qd5 c7 e3+ Kf1 Qa7 Ne4 Qa2 Ng5 Qc4 Bd5 Kf4 Kg2 Rh8 Qgh7 Bg8 Qb1 Rh7 Qd7 Qf8 c8R Qd8 Rc6 Rh8 Rg1 h1Q+ Kf1 Qhe4 Qc7 Qee8 Rh1 Qf8 Kg1 Rh7 Rc2 e2 Qe7 Nd7 b8N Rh8 Na6 Nb8 Qb4 Rh7 Qc5 e1Q+ Kh2 Qa1 Re2 Qea5 Kg1 Q1a2 Qee3+ Kg4 Qc3 Kf4 Qe1 Ng3 Qhg6 Rh4 Rhh2 Rg4 Rh7 Rh4 Qh6 Nh5 Qf1+ Kg3 Qd1 Rd4 Qe1+ Kf4 Nh3+
2n3q1/b1r2Qq1/2b1k2P/q1Pp4/2B2nR1/4bQ1R/4RBPN/1K1Q1QbB b - - 0 1 illegal: Other
5R2/1b1N2qr/2kb1Q1p/b4rbK/N7/2qQ1N1R/1P1nPPBN/1Q1r2R1 b - - 0 1 legal: proof: c4 b5 g4 f5 gxf5 e5 d4 g5 a4 d5 axb5 g4 h4 Nd7 Be3 Nc5 cxd5 Qe7 d6 Qd8 d5 Ne6 Bd4 Ng5 hxg5 exd4 g6 Kd7 g7 a5 b6 c5 b7 a4 b8Q a3 f6 c4 f7 g3 Nd2 h6 Qc2 g2 Rh3 a2 Qb1 c3 Ngf3 g1B Nh2 c2 Ndf3 c1B Qb3 d3 Bg2 d2+ Kf1 Qc7 Q3d3 Nf6 g8N Ra5 Ne7 Bb7 Nc8 Qc3 Nb6+ Kd8 d7 Kc7 d8R Bb4 f8N Rh7 d6+ Kc6 d7 Rf5 Rb8 Ba5 d8Q Ne4 Nfd7 Qg7 Na4 d1R+ Ne1 Qc3 Qe7 Bg5 Rf8 Rd2 Nef3 Qg7 Ng4 Bh2 Qf6+ Bd6 Ngh2 Bc8 Kg1 Rd1+ Bf1 Nd2 Kg2 Re5 Kg3 Bb7 Kg4 Rf5 Qf7 Qc3 Kh5 Qg7 Bg2 Qc3 Qg6 Qg7 Qbc2+ Qc3 Rc1 a1Q Qb1 Qa2 Qf6 Qg8 Rc2 Qc5 Rc4 Qg7 Rg4 Qc1 Bh1 Qc5 Rg1 Qc3 Bg2
3Qr3/rrq3p1/r3Pq2/1N1Q1b2/1BQBn3/RPP2qk1/2NN1bB1/3B1K2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 d4 c5 dxc5 f5 a4 f4 axb5 Nc6 Ra6 Nce7 Rg6 Nf5 gxf5 Bd6 Rg3 Bf8 Rg4 hxg4 e4 Kf7 h4 a5 h5 d5 c6 d4 c3 g3 h6 a4 e6+ Kf6 b3 Ke5 e7 f3 e8N d3 h7 a3 b6 a2 c7 a1R b7 g2 b8Q R8a4 f6 Rc4 f7 Qg5 Nd6 Rca4 Ne2 g1Q Nb5 Qa7 Nd2 Bd6 f8B Ra6 Bg2 f2+ Kf1 Bf5 c8B Nf6 Ned4 Kf4 e5 Qc7 Nc2 Kg3 e6 Qh6 Bcb7 Ne4 Qd8 Bc5 Qc8 Be3 Bb4 Re8 h8Q Qf6 Qd8 R1a2 Qhh5 Ra7 Qhe2 R2a6 Bca3 Bd4 Bc5 Be3 Bab4 Bd4 Bd5 Be3 Bd4 Rb7 Nb1 d2 Qc4 Rba7 Qh5 Rb7 Bf3 Rba7 Bd1 Rb7 Ke2 f1R Rh4 Rf4 Qg5+ Rg4 Kf1 Bf2 Qh5 Nd6 Bg2 Ne4 Qcd5 Rg5 Qe2 Rh5 Qec4 Rhh8 Q8d7 Rea8 Qd8 Re8 Rh8 R8a7 Q8d7 Re7 Ra8 Re8 Qd8 Be1 Bdf3 d1Q Bh5 Qg4 Nd2 Qgf4+ Bhf3 Bf2 Bd1 Qf3 Qb8 Rc6 Qe2 Ra1 Qbd8 Rcb6 Ra2 Ra7 Qec4 Rbb7 Rb2 R1a4 Ra2 R4a6 Ra3
2rqqrB1/np1R3K/q1QqQ3/B3r3/4PbB1/P1R3RN/kP2QB2/7n b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 f5 cxd5 a5 g4 a4 Qxa4+ Nd7 Qa7 f4 Nc3 Nb8 Ne4 Bf5 gxf5 h6 Nf2 h5 Ng4 hxg4 Kf2 Ke7 d4 g5 h4 c5 e4 c4 f6+ Kf7 h5 g3+ Kf3 c3 Kg4 f3 Kf5 g2 h6 g4 d6 g3 d7 c2 a3 f2 h7 Nc6 d5 Na5 d6 Qc8 Rh3 Bh6 Qa6 Bf4 Qc6 Qd8 Be3 c1Q Be2 f1Q Bf2 Qd2 Bg4 Rc8 Rc1 Qa6 e6+ Kf8 Kg6 Nh6 f7 Nf5 Rc3 Qe8 Nf3 g1Q d8B g2 d7 Qd6 Rg3 Qgd1 Ng5 g1R Nh3 Q1d3 Bc7 Ke7 d8R Rf8 h8Q Q3d4 Qe5 Rg2 Qcb5 Nc6 Kh7 Na7 Qe2 Qdd3 Qd5 Kf6 Qa2 Ke5 e7 Qd4 Ba5 Qdd3 Re3 Kd4 Rd7 Ng3 Qe6 Nh1 Rg3+ Qe3 Rd3+ Kc5 Rb3 Qed4 Rbd3 Kb5 Rde3+ Ka4 Rc3 Qd8 e8B Q4e5 Re7+ Qeb5 Bc6 Rg1 Bd5 Qbe8 Rd7 Rd1 Bc4 Rd5 Ba2 Rg8 f8Q Re5 Qff6 Rf8 Bd5 Qd3 Rc4+ Kb3 Qh6 Ka2 Rc3+ Qc4 Qhg6 Qc5 Qc6 Qd6 Bg8 Qce6 Rb3 Qc4 Qe6 Qa6 Rbc3+
4B3/nRKBn3/6Q1/2npn1P1/nBN1bB1Q/7n/P1P1Q3/b1k1qNrN b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 f5 Ra4 Nd2 Qc7 bxa3 Ra7 a4 Ra8 a5 Qd8 h4 Bg7 g4 Qb6 Rb1 Qc7 Rb4 Qd8 Rf4 gxf4 g5 Bf8 g6 b5 Rh3 Ra6 Rh1 Rb6 Kf2 Rd6 Ke1 Rd3 Ke2 Rg3 Ke1 Rg5 hxg5 Ba6 Be2 Bb7 Bf1 Bc8 Ke2 e5 Kd3 d5 c6 h5 f7+ Ke7 c7 Kd6 g7 Kc5 f6 Kb4 a6 e4+ Kd4 f3 Ke5 Kc3 a7 h4 a8Q f2 Qe2 e3 Nc4 b4 Bh3 f1N Qg2 b3 Bd7 b2 Qe2 b1N Na3 h3 Qf3 h2 Be8 Bf5 c8B Qa5 Nh3 Be4 Bcd7 Nfd2 Nc4 Nb3 Qc6 Nc5 Qe2 Ne7 g8N Bg7 Kd6 Qb4 Qa6 Nbc6 f8Q Na7 f7 Rh7 Rf1 h1N Nf6 Nf2 Ng4 Rh4 Nh2 Rg4 Qg8 Rg1 f8B Bd4 Qg4 e2 Bf4 e1N Qg6 Nf3 Qh4 Ne5 Re1 Qa5 Nf1 Qb4 Kc7 Qa5+ Nb6 Kb2 Qe2 Nc3 Rd1 N3a4 Rb1+ Ka3 Rb4 Ba1 Rb5 Qe1 Rb4 Nb3 Rb5 Kb2 Nc4+ Kb1 Rb8 Nfg4 Rb7 Nf2 Bh2 Kc1 Bg3 Nec8 Bb4 Nbc5 Bh2 Ne7 Bg3 Nfd3 Nf2 Nf4 Nh1 Nh3 Bf4+
N1n1n3/1RpQrB2/2Pr2P1/n1B4R/1Q4nB/P1n1Q2n/1Q2qb2/2K1R1k1 b - - 0 1 illegal: No possible last move, all moves rejected
b1b2n1B/8/nP3N2/1p2kR2/P1B2NrQ/1QrPr1b1/2nr1QB1/1B4NK b - - 0 1 illegal: No possible last move, all moves rejected
Q2Q1r2/3qb3/Rr3BKb/1QbB4/1nN1p1P1/2pPB2n/3P2N1/1NB2nk1 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 f5 hxg5 d4 e4 d3 cxd3 Be6 Rh4 Bd5 exd5 Qd7 Re4 fxe4 Ra6 Bg7 Rh6 Bf8 Rh1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 Kf5 h5 f4 e5 g4 c5 g6 a4 g7 a3 b6 a2 b5 a1B b7 e3 b6 e2 Nc3 e1B Qf3 h4 Bg2 c4 Nge2 h3 Kg6 h2 f5 Qd7 f6 Be7 f7 Nc6 f8B Rb8 Nf4 Nf6 g8Q Nh7 Nb1 Nb4 Bh6 Bf2 Qd8 Rf8 Rg1 h1N Qe4 Kc5 d6 Ng5 Bf3 Bc3 Ng2 Nh3 Be3+ Bd4 Qf5 c3 Bd5 e4 Qe5 Bg3 Rf1 Bgh4 Rf6 Bg5 Qf5 Ng3 Qe5 Qc7 d7 Bh6 Qf5 Nf1 Re6 Ra8 b8Q Ra6 b7 Rb6 Qa8 Qc6 Rf6 Qe6 b8N Kd6 Nc6 Bc5 Qg5 Nf2 Na5 Nh3 Qh4 Ke5 Qe8 Qc6 d8B Qb7 Qb5 Qd7 Ne1 Rb8 Ra6 Rb7 Bd4+ Kf4 Ng2+ Kf3 Nc4 Rb6+ Qf6+ Kg3 Bf2+ Kh2 Be3 Bed6 Qh8 Kh1 Bf6 Be7 Bg5 Kg1 Bf4 Rf7 Qhd8 Rf8 Be3+
4b3/2n1KPn1/r3RQ1p/1p1kB1P1/1Pn1Qr2/q3R1R1/2N1N3/Q1r2bNN b - - 0 1 legal: proof: b4 d5 h4 b5 e4 f5 exf5 g5 hxg5 a6 c4 Bg7 cxd5 Bd4 Bc4 a5 Bb3 a4 a3 axb3 a4 Bb7 a5 Bb6 axb6 Bc8 Ke2 Kf7 Ke3 c5 Ke4 e5 g4 c4 d4 h6 f4 b2 f6 c3 b7 c2 f5 Ra6 g6+ Ke8 d6 Kd7 Kd5 e4 f7 e3 f8R e2 g5 e1N f6 Ra8 g7 Na6 b8Q Qc7 f7 Nf3 Ra3 Qd8 Re8 Rh7 Bf4 c1R Ree3 Qa5 Be5 Qa4 Nc3 b1B Qb7+ Kd8 d7 Ke7 d8N+ Bd7 Ne6 Rc8 Nce2 R8c7 Rh3 Bf5 Rg3 R1c4 Qa1 Be8 Re4 Bh3 Rae3 Bf1 Qa8 Kd7 Qc6+ Kc8 Kd6 Qa3 d5 Ne7 g8N Rh8 N6d4 Nd2 Nf6 Nf5+ Ke6 Kb8 Nh5 Ng7+ Kd6 Ra7 Nc2 Nc7 Ke7 Ra6 d6 Ka7 Qa8+ Kb6 d7 Rd4 d8Q Nc4 Nf6 Rf8 Ng4 Rh8 Nf2 Rf8 Qac8 Kc6 Nh1 Rg8 Qg4 Rh8 Bd6 Kd5 Re6 Rf4 Be5+ Bd7 Qb8 Rc8 Qb6 Be8 Qf5 Qd3 Qf6 Qa3 Qb7+ Rc6 Qb6 Ra8 Ncd4 Nd2 Qa7 Rc1 Qa4 Ra5 Qc2 Nc4 Qd3 Ra6 Nc2+ Rd4 Qdf5 Rf4 Qe4+
2Q3R1/nr3PP1/2p1rb1K/Q5p1/2P2k2/br3B1B/QRRN1Q2/b1B3qn b - - 0 1 legal: proof: c4 b5 h4 g5 d4 f5 a4 e5 dxe5 d5 axb5 d4 g4 Bh6 h5 Bf8 Nc3 dxc3 gxf5 Be6 Qd3 Bf7 Qd1 Bg6 hxg6 Qf6 Qd4 Qe7 Qd1 Qd8 e4 Ke7 Ke2 a5 Kf3 h5 b4 h4 Kg4 h3 f4 a4 b6 c2 g7 c6 f6+ Ke6 f5+ Kf7 b7 a3 e6+ Ke8 e7 Kf7 e8R h2 b5 a2 e5 Ba3 b6 Na6 b8Q Qd5 b7 Ra7 Rb1 a1B Nf3 Nc5 Qc7+ Qd7 b8Q Nb3 Qe2 Rh6 Bh3 Nc5 Rb2 Ne7 Qa5 Qd1 Nd2 Ne4 Rg8 Rb7 Qc8 Ng3 Rg1 h1R Rg2 Rg1 Rh2 Nh1+ Rg2 Rg6 Kh5 Rf1 Rh2 Rf3 Qf2 Bb4 Qca8 Nc8 Q8a7 Bf8 e6+ Ke8 e7 Kd7 e8B+ Kd6 f7 Qg1 f6 Rfb3 Qa2 Be7 f8Q Ke5 f7 Re6 Bd7 Bf6 Kh6 Rd3 Q7a4 Na7 Qc8 Rg3 Bg2 Rgb3 Bf3 Kf5 Qa5+ Kf4 Rb1 Re1 Bh3 Re6 Ba3 c1B Rb2 Rbe3 Rg2 Reb3 Rc2 Bcb2 Rh2 Bbe5 Bb2 Bd6 Bc1 Ba3 Rb2 Bb4 Nb1+ Ree3 Qf1 Bf8 Rhc2 Ba3 Nd2 Re6 Qf2
QN1kb1b1/n3p3/r1b3P1/1PR1QK1R/2R1N3/Pr1B3p/2Qn2Q1/1N1q2n1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 b5 hxg5 Na6 c4 Bh6 cxb5 Bf8 b6 Nb8 b5 c5 Ba3 Bg7 Bb4 axb4 d3 c4 d4 Be5 Nd2 Bd6 Nb1 Bc5 dxc5 Ra4 Qc1 Ra6 Qd1 Ra8 Kd2 d5 Ke3 h5 Kf4 b3 g4 d4 c6 c3 b7 c2 f6 c1N f7+ Kf8 g6 h4 g5 d3 a3 d2 c7 b2 Bd3 Ra7 Qc2 d1B Nh3 Bcg4 c8R Be6 Rc4 Nc6 b8N Bh5 f3 Nf6 Nf2 Rg8 Ne4 Ra6 Rc5 Bb3 Kf5 Na7 f4 Ne2 Rc1 Bd5 Rh1 Bc6 Rc4 Ng1 Ra2 Kg7 f8Q+ Kh8 Qe8 Kg7 Qd7 Kf8 g7+ Kf7 Qc7 Ke8 Qe5 Qd6 Rh2 Kd8 Rh3 Rh8 g8Q+ Bhe8 g6 Rh6 Qg2 Rh7 Rc5 Qd4 Qb3 Qa4 Qbc3 Qd1 Qcc2 Rh5+ Ke6 Rg5 f5 Rg3 Rc4 Ng4 f6 Ne3 f7 Nf1 f8Q Nd2 Kf5 Re3 Rg3 h3 Rg5 Rg3 Rh5 Re3 Nbc3 b1B Rb2 Ba2 Nb1 Rg3 Rbb4 Bb3 Rc5 Bg8 Rbc4 Re3 Bf1 Rc3 Bd3 Rb3 Qf7 Bcd7+ Qfe6 Bc6 Q5d5+ Bcd7 Qa8 Bc6 Qe5
Nq1r1Q1b/n2n3B/6Q1/KPR1r1BP/2q1b3/1P1R1p2/5rp1/BQBR1k2 b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 e5 f4 d5 fxe5 b5 cxd5 a4 b3 a3 Nc3 Bb4 Na4 Bc5 Nb2 axb2 a4 Bb4 axb5 Bf8 e4 Kd7 d4 b1R Kd2 g5 Kc3 f5 h4 c5 e6+ Kd6 h6 c4 Kb4 c3 h5 c2 e7 g4 e8Q f4 h7 g3 e5+ Kc7+ d6+ Kb6 e6 f3 d5 g2 e7 Bh3 d7 Rb2 d6 Nf6 Ne2 Ra3 Qg6 Be6 e8Q Bh6 Nc3 Ra8 Ra2 Bf5 Qf8 Be4 Bd3 Bg7 Re1 Qc8 d8R Nfd7 Rh1 Rg8 h8B Bf6 Rh4 Rg7 Rf4 Re7 Rf5 Qc7 Rc5 Re5 Bf4 Qa7 Qb1 c1Q Be3 Qf1 Bc1 Rf2 Rd2 Bg7 Ne2 Qc7 Nf4 Qa7 Ne6 Nc6+ Kc4 Qe2 Nc7 Qb8 Kc3 Na7 Kb4 Bh6 Bf6 Bg7 Bg5 Bh8 Bf6 Rf5 Ba1 Re5 Bc2 Nf6 d7 Qf1 Rc8 Qd3 d8B Qc4+ Ka3 Ka5 Rd3 Nd7 Bdg5 Qb6 Re8 Rd8 Re6 Qb7 Red6 Qb8 Rd2 Bb7 Bf5 Bc6 R6d3 Be4 Qgf7 Kb6 Bh7 Ka5 Q7g7 Kb6 Na8+ Ka5 Ka2 Kb4 Qg6 Rc8 Rb2 Rce8 Rd1 Kc3 Ka3 Rd8 Rd6 Rd5 Rc2+ Kd3 Rb2+ Qc2 Ka4 Ke2 Ka5 Re5 Rd3 Kf1 Ra2 Qc4 Rb2 Re7 Rbd2 Re5 Rd1+
R1KR4/QPQRrN2/2pqb1qP/1Q2nN2/1p4b1/2q4P/B2k1n2/rN3R2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 b5 gxh5 Nh6 c4 Na6 cxb5 Ng8 b6 Rb8 b5 Ra8 Ba3 Nb8 d4 e6 d5 c6 d6 Be7 Bb4 axb4 b7 Bf6 Qc1 Bd4 Qc2 Bb6 Qd1 Bc7 dxc7 Qe7 Qd5 Qf6 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 d5 a4 g6 b6 d4 h3 d3 h6 d2 a5 Qe8 a6 Qf8 a7 Na6 b8Q Qc5 b7 Bd7 c8N Qe7 Qc7 Qd8 Nf3 Nc5 Nh4 Ne7 Qe2 d1B Na3 Rh7 Qb5 Bg4 Nd6 Ne4 Bc4 Qb8 f3 Nf2 Rad1 Qd8 Rhf1 g5+ Kg3 e5 f4 e4 Ba2 e3 Nf7 Be6 Rd7 Rc8 a8Q e2 Qaa5 e1Q Qa7 Ra8 Ng2 Be2 Ne3 g4 Kh4 Qc3 Kh5 g3+ Kh4 B2c4 Kh5 Nh1 Kg4 g2 Rdd1 Qd6 Nh8 Rg8+ Ng6 Qce5 Rf3 Be2 Qba6 Qdd4 Qaa5 Bd3 Qb5 Rd8 Nh8 Qc3 Rff1 Bb1 Rd4 Ng6 Rd3 Rhd7 Rdd1 Bb3 Rd5 Ke7 f6+ Ke6 f7 Re7 f8R Bf5+ Kg5 Rd6 Ra8 Nf2 Rdd1 Qec5 Rd4 Ne5 Rdd1 Neg4 Rd4 g1Q Rd2 Bd3+ f5+ Ke5 f6 Ke4+ Nf5 Be2 Kg6 Bf7+ Kg7 Qgg3 Kf8 Ne5 Rdd1 Qg6 Rd3 Be6 f7 Red7 Ke8 Bg4 Rdd1 Rd3 Rd2 Re3 Rdd1 Re1 Rd5 Re7+ Kd8 Ra1 f8R Bc8 Nf7 Be6 Rd7 Qd6 Kc8 Kf3 Rd8 Ke4 Qba5 Kd3 Qb5+ Kd2 Nb1+
1brR2Bb/1p2B1Qk/1K2P2b/2B1Rn1P/6n1/bp1P1r1N/3q1B2/2Q1R2Q b - - 0 1 illegal: No possible last move
Nr6/QN2Q3/Rr1b1nK1/1P1N2PR/2R2Q2/kPp1q1b1/3qbp1Q/r3B3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 e6 g4 Bb4 h4 Kd7 hxg5 Ba3 f4 Bc5 g6 Nc6 g5 Bf8 Bh3 Ke8 Bf5 Ne5 fxe5 exf5 Kf2 Ke7 Kf3 h5 Kf4 a5 d4 c5 e4 f6 e6 Kd6 e5+ Ke7 g7 c4 d6+ Ke8 d5 h4 e7 Kd7 e8R a4 b3 h3 Qe2 h2 Nc3 a3 Bd2 a2 Be1 Ra7 Nf3 Rb7 Nd4 Rb6 Nc6 Qe7 Rc1 a1B Na5 Bb7 Ra8 Bb2 Rf1 h1Q Qh2 Qg2 Ra6 Qe6 Rh1 Qd2+ Kf3 f4 Ke4 Qe8 Kf5 f3 Rc2 Qe7 Kg6 f5 Qf4 f2 Rh5 Nf6 g8Q f1R Qg7 Rg1 Qh2 f4 e6+ Kc8 d7+ Kc7 Qf7 Kd6 d8Q+ Kc5 d6 Kb4 d7 f3 Nd5+ Ka3 Qdc7 f2 Qcf4 Be5 d8Q Qe8 Qd7 Bfd6 e7 Bc8 Qb7 Bg4 Qa7 Be2 Rc1 Qc6 e8N Qc5 Rc2 Qce3 Nec7 Rhb8 Qe7 Rf1 Na8 Rh1 Qfh4 Bg3 Qf4 Rg1 Rc3 Rf1 Rd3 c3 Rd4 Qd1 Rc4 Qdd4 Bd2 Ra1 Be1 Qdd2 Nb7+
3Q2QR/1n3P2/2k4R/2qR4/n3rPqb/pK1QQ3/1NrPr1Bp/2B1q1B1 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 g4 c4 Na6 cxd5 Nb8 Nf3 gxf3 g4 Qd6 Nc3 Kd8 Ne2 Be6 Ng1 Bf7 h3 Bh5 g5 Bg4 hxg4 Ke8 Kf2 Qd7 Ke1 Qd8 b4 Kd7 b6 a5 b7 c5 g6 h5 f6 e5 d6 a4 g7 f2+ Ke2 c4 g5 h4 g6 c3 Kd3 e4+ Kc4 h3 f7 e3 b5 e2 b6 e1R Ra2 c2 Ne2 Ne7 g8R Nf5 g7 Kc6 d7 Qh4 d8Q Nd7 b8Q Qg4 b7 Nc5 Nc3 Re2 Qa7 Rc8 b8B Be7 Rh2 Rh5 Rh8 Bh4 g8Q Nd6+ Kb4 Rd5 Bg2 Ndb7 Qf1 a3 Rb2 Rc7 Nd1 Na4 Kb3 Rce7 Bc7 R7e4 Qe3 Rc5 Bb6 Rc4 Rb1 Rc5 Nb2 Rc4 Qe1 f1Q Q1g3 Qh1 Qed3 Qe1 Bg1 Rc5 Qge3 Rc3+ Ka2 Rc4 Nd1 Rc5 Rb5 Rc3 Rd5 Rcc4 Bb2 c1Q Kb3 Rc2 Rh1 Qa1 Bc1 Qd4 Nb2 Qc5 Bf2 Nb6 Rf1 Na4 Bg1 h2 Rf3 Bg5 Rfh3 Be7 R3h7 Bh4 Rh6+
br1bK3/4NPQ1/B3QQPr/1pR2r2/q3NR2/b1N5/Pn1p4/1kq2N1R b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 g5 f4 a4 f6 a3 bxa3 Qc7 a4 Qb6 a5 Qd8 h4 Bg7 g4 Na6 f5 Nb4 Bf4 gxf4 g5 Nc6 h5 Ne5 Ba6 Bf8 Bf1 Ng6 hxg6 Ra6 Kf2 Ra7 Ke1 Ra8 Kf2 e5 Kf3 h5 Ke4 f3 Kd5 f2 c4 e4 c6 e3 c7 h4 f7+ Ke7 g7 e2 a6 e1B a7 h3 c5 h2 c6 Nf6+ Ke5 d5 g8Q d4 g6 d3 Nc3 d2 Nf3 Nd5 Qe2 Qd7 Rc1 Nf4 Qg7 Rb8 a8R Rh6 Ra4 b6 Qe4 Bb7 Ba6 f1R Rc4 Bh4 c8N+ Kd8 f6 Kc7 Rc2 Ba8 Nd6 Nd3+ Kd5 b5 Qe6 Kb6 Rf4 Qa7 Nde4 Ba3 f8Q Ka5 f7 Nb2 Qfh8 Kb4 Kd6 Bf6 c7 Bd8 Kd7 Qd4+ Ke8 Qa7 Bc8 Qa4 Ba6 Rf2 c8N Rf1 Rg1 h1Q Nh2 Rf2 Ra1 Qc1 Nf1 Rf3 Ne7 Rf2 Qb6 Kc4 Qe6+ Kd3 Ncd5 Rf3 Rc5 Rf2 Ndc3 Kc2 Rh4 Rf5 Rf4 Qe1 Nfg3 Qf1 Rb1 Qfc4 Rh1 Qf1 Qgf6 Qb1 Nf1 Qc1 Ne2+ Kb1 Qh7 Qac2 Qhg7 Qa4 N2c3+
q2B4/P1qn4/1pp1P1P1/3Q4/NbNKBqrQ/1R2Qr2/1B2br1k/1NB5 b - - 0 1 legal: proof: c4 a5 b4 g5 bxa5 e5 f4 d5 fxe5 Bb4 cxd5 Na6 a4 Nb8 Ra2 Bf8 h4 Ne7 g4 Qd7 h5 Ng8 Rb2 Nc6 Rb4 Nce7 Rf4 gxf4 g5 Ng6 hxg6 Qd8 Kf2 Ke7 e4 f5 d4 h5 g7 h4 a6 f3 Ke3 f2 a5 h3 d6+ Ke6 d5+ Kd7 a7 c6 a6 h2 g6 f4+ Kd4 f3 e6+ Ke8 e7 Kd7 e5 Rh7 Qe1 Qc7 Bg2 f1R Ne2 f2 Nec3 Nf6 g8Q Rh4+ Be4 Rg4 Na4 b6 e8N Rb8 a8Q Bb7 a7 Ba6 Qe3 Be2 Rg1 h1Q Rg3 Qh8 Qh7+ Be7 Qh4 Qg8 Qb7 Qf8 Qa6 Qg8 Qad3 Qh8 Ng7 Rf8 Nf5 Rf7 Qdd2 Qa8 Rf3 Rh1 Qdd3 f1Q Rg3 Rh2 e6+ Ke8 Qb5 Qf4 d7+ Kd8 Qa5 Bb4 Nd6 Ke7 Nc4 Rf2 d8B+ Kf8 d6 Kg7 Qc3 Nd7 Qe3 Rf3 Qd5 Rf5 Qf6+ Kh6 Be7 Kh5 Bd8 Ne5 d7 Rf2 Be7 Rf3 d8B Nd7 Bd6 Rf2 Be5 Rf3 Qg7 Rf6 Qe7 Kh4 Qa3 Rf2 Rb3 Rf3 Qh7+ Kg3 Qh4+ Kg2 Qa1 Kg1 Qc3 Kg2 Qe3 Rf7 Qe7 Kh2 Qh4+ Rh3 Qd2 Qg3 Qe3 Rf2 Bg7 Qgf4 Bh8 Bf3 Kd3 Bd1 Bc3 Bf3 Kd4 Be2 Qf6 Rhg3 B3b2 Rgf3 Qh4+
3r3k/1B2N1bp/1Br3N1/1Pq2bQ1/b1n5/2NRp3/Q1P1Pb1r/N1Q1BK2 b - - 0 1 legal: proof: g4 c5 d4 d5 dxc5 g5 h4 b5 hxg5 d4 f4 b4 a4 b3 g6 d3 g7 Qc7 g5 Nc6 Nc3 Qa5 Ra2 bxa2 b4 a1R Ba3 Qb5 axb5 d2+ Kf2 Ne5 f5 Ng6 fxg6 Rc1 Qe1 d1Q Qd2 Bd7 Qe1 Qd5 Qd1 Bc8 Ke1 Qd8 b6 a5 c6 f5 c7 e5 b7 f4 b8B f3 Bh3 e4 Be6 f2+ Kf1 a4 Rh2 Ra6 Rh3 Qd4 Nf3 Nf6 g8N Bc5 g7 Ng4 g6 Bd7 c8N Ne5 Nce7 Rc6 Ba7 Nc4 Nd2 Qd5 Bb2 a3 Bb6 a2 Rd3 a1B Nb3 Bd4 Ba3 Qc5 Bd5 Rb1 Qc1 Bb2 Na1 Be3 Kg2 f1B+ Kh2 Bg2 b5 Bf2 Bb4 e3 Be4 Bf5 Bf3 Bgh3 Kh1 Bhg4 Kg2 Be6 Kf1 Bgf5 Ned5 Bf7 Nge7 Rf8 g8Q B7e6 Na2 Bg7 Nf4 Bd5 Qe6 Rg8 Nc3 Kf8 Qf6+ Bf7 Qg5 Rh8 Ned5 Kg8 Bh1 B7e6 Be4 Bf7 Ne7+ Kf8 Rd2 Rc7 Na2 Bg8 Bb7 Na5 Rd3 Rc8 Bd8 Bh6 Qe1 Kg7 Kg2 Bb3 Qd2 Rh1 Qc1 Rh5 Kf1 Rh2 Be1 Nc4 Bc7 Rhd8 Bca5 Kf8 g7+ Kf7 Bb6 Ba4 Nfg6 Rc6 Qg2 Na5 g8Q+ Kf6 Qc4 Kg7 Qb3 Nc4 Qba3 Rb8 Qg5 Rd8 Nc8 Kg8 Nc3 Bf8 Qa2 Bg7 Nf4 Kh8 Ne7 Bg3 Qaa3 Bh4 Qa2 Bf2 Nfg6+
Q2N3b/k4Pr1/1b2B2Q/1n1P1pbP/1N2n3/1Q1N2Bp/4R1n1/Bq1bQ2K b - - 0 1 illegal: No proof kernel
4nBr1/3BNprB/kNbP1Bn1/8/QP1n1QK1/QR1r1P1N/4p3/q3n3 b - - 0 1 illegal: No possible last move
2b2NR1/rpp4Q/N3PQB1/4K1P1/R1r3R1/1bN1kqn1/r1P4r/1Q1R2b1 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 e5 dxe5 g5 f4 a4 f6 a3 bxa3 Be7 a4 Bd6 a5 Bf8 h4 Kf7 g4 Ra7 f5 Bg7 Bf4 gxf4 g5 Bf8 Qd5+ Ke8 Qd1 Nc6 h5 Nce7 Bb5 Ra8 Bf1 Ng6 hxg6 Be7 Rh5 Ba3 Rh1 Bf8 Kd2 d5 Kd3 Kd7 Kd4 Kc6 a4 h5 g7 f3 a6 f2 f7 h4 a7 h3 a5 h2 a6 Nf6 g8Q Be6 Qh7 Bc8 e6 Ne4 f6 Bc5+ Ke5 d4 f8N d3 f7 d2 Nf3 Qd3 Ne1 Qf3 Nd3 Ng3 Rg1 h1R Nc3 Rh4 Qb1 d1R Nb4+ Kb6 Ra4 Rc4 Bd3 f1B Bg6 Be3 Rh1 Kc5 Rh4 Rd2 Rg4 Bg1 Ra1 Rh2 Ra4 Rb8 a8R Bd3 a7 Be4 Ra1 Bd5 Qg8 R8h3 Qh7 Rh4 Nba2 Ra4 Nb4 Bb3 Na6+ Kb6 Qb2 Ra2 Rd1 Kc6 Ra4 Rc4 Qb1 Bd7 Rb4 Re8 Rd8 Bc8 Ra4 Kb6 R8d4 Rd8 Rg4 Rd6 Nb4 Kc5 a8Q Ra6 Qb8 Bd7 Qd8 Bc8 Qf6 Rf4 Nd7+ Kc4 f8R Ra7 Rg8 Rd4 Nb5 Rf4 Nf8 Rd4 Nd6+ Kc3 Na6 Rc4 Rf1 Kd2 Nb5 Ke2 Rd1 Ke3 Nc3
2knqbN1/5R2/3QrP2/1P3p2/K1PQR1p1/4NQq1/1r1N1nBR/Nq4q1 b - - 0 1 illegal: No extended proof kernel
K1b1qB1R/2Bp2nB/5Q2/2PP2RR/QQb1Nr1q/5k1n/2p2n1P/1n2Q3 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 a6 Nc3 a5 Nd5 Rh6 Nb4 Rh7 Nc6 Rh8 b4 a4 Na5 Qb6 Nb3 axb3 Bc4 Qc7 Bf1 Qd8 c3 b5 Rb1 e6 Ra1 b2 Bh3 c4 Bg2 Ra4 Bf1 Bc5 bxc5 b4 Bh3 b3 Bf1 Rb4 cxb4 Qa5 Ke2 Qc7 Ke1 Qd8 Ke2 Kf7 a4 Kf6 d4 b1Q f4 g5 h6 g4 d5 g3 h7 g2 b5 b2 b6 e5 b7 e4 a5 e3 a6 c3 a7 c2 Kd3 e2 Kc4 e1N Kb5 Qc7 a8Q Na6 b8Q Nf3 Bd3 Nb4 Ra4 Qa1 Qe1 b1B Ne2 g1N Nc3 Nd2 Ne4+ Kf7 f6 Kg6 f7 Kf5 f8Q+ Kg4 f5 Qa3 f6 Qe5 Kb6 Qe8 Ka7 Ba2 f7 Nh3 Rg1+ Kf3 Rg5 Nb1 Bf4 Nh6 Bc7 Bc4 Qe7 Nf5 f8B Qa1 Qf6 Qd4 Rh5 Rg8 h8R Rg4 Qac6 Rh4 Ka8 Rf4 Ra1 Qf2 Qa4 Qh4 Ra3 Ng7 Qbb6 Na2 Qbb4 Nac3 Ra1 Nd2 Rd1 Ndb1 Rd2 Nd1 Rg2 Ndf2 Rgg5 Ba2 Ng3 Bb3 Bh7 Bc4 Ne4
3b2nR/2B5/RP2Pr1P/pr3NK1/1B3Q2/2Qn1Bp1/b2Qb1n1/1Bn1R2k b - - 0 1 illegal: No possible last move, all moves rejected
4K3/2rNb1k1/p1n1R1Pr/2P1n2Q/4N3/bp3Q1b/R2bR1BP/3R1NQn b - - 0 1 legal: proof: b4 b5 f4 c5 e4 g5 g4 d5 exd5 h5 gxh5 g4 a4 Qb6 Ba3 Rh6 axb5 Qf6 b6 Qg5 fxg5 Rh7 b5 Rh8 Bb4 cxb4 Ke2 f5 Kd3 Kf7 Kd4 f4 Ke5 g3 c4 g2 d4 a6 g6+ Kg7 d6 e6 b7 b3 d7 f3 d8R f2 c5 Nh6 b6 Ng8 d5 Rh7 d6 Ra7 d7 Nh6 Re8 Nf5 d8R Rh8 h6+ Kg8 Kf6 e5 Nh3 g1B Ng5 e4 Bg2 f1N Rd2 e3 Re2 Nd4 Raa2 Nbc6 b8N Rc7 b7 Bg4 Re6 Ng3 Nd2 Ne5 Nge4 Bh3 Nd7 Ndc6 b8Q Bf2 Qg1 Be1 Nf1 Bb4 Qb7 Ba3 Red2 e2 Rdc2 e1B Re2 Na7 Qd5 Beb4 Qd3 Bd2 Qf3 Bg7+ Ke7 Bf8+ Kd8 Nac6+ Ke8 Rh7 Nb6 Be7 Nd7 Rf7 h7+ Kh8 Qd4 Kg7 Rg1 Nh1 Qa1 Kh6 h8Q+ Rh7 Qd1 Nf7 Qd4 Nfe5 Qdf2 Kg7 Qh5 Rh6 Qff3 Bdg5 Qd4 Ng3 Rh1 Bd2 Qg1 Bd8 Qd4 Kg8 Ne3 Kg7 Rd1 Nh1 Nf1 Be7 Qg1
Nk6/3qP1q1/3N2QP/3B3q/pQKN1n1p/3nR1RP/2Q2qRR/2b3rn b - - 0 1 legal: proof: c4 a5 a4 b5 axb5 h5 g4 d5 cxd5 h4 Nf3 Ra6 Ng1 Rah6 f4 e5 d4 Bc5 e4 Be6 Be3 Bf8 d6 Rh5 d5 Bd7 Bd4 exd4 Ke2 Rf5 Ke1 Re5 fxe5 Bf5 Qa4 Bg6 Qd1 Bh5 gxh5 Qg5 Ra2 Qe7 Ra1 Qd8 Kd2 Kd7 Kd3 Kc8 b4 c5 e6 f5 e5 g5 b6 g4 h6 a4 e7 f4 e8R f3 d7+ Kb7 d6 f2 h3 g3 b5 g2 e6 Ne7 Nf3 g1N Bg2 Qc8 d8Q Ne2 d7 f1Q Ra2 Nbc6 Na3 Qe1 Qc2 Qf2 Kc4 d3 Nd4 d2 Rh2 d1Q Bd5 Kb8 b7 Nf4 Qb6 Nb4 d8N Nbd3 Nf7 Rg8 Nd6 Nf5 e7 Rg1 Qa6 Bg7 Rg8 Bh8 Rg3 Qh5 Re3 Ng3 Rb2 Kc7 b8R Qd7 Rg8 Nh1 Rgg3 Kb8 b6 Bf6 b7 Bg5 Kc3 c4 Nab5 Nc1 Kb4 c3 Kc4 Ncd3 Ra2 Qdg4 Nc7 Qd7 Qd1 c2 Na8 c1Q+ Qc2 Qcd1 Qb6 Q1g4 Qb4 Ne1 Qg6 Ned3 Qb3 Qff3 Rag2 Qf2 Qc2 Bf6 N4f5 Bb2 Nd4 Bc1 Qe4 Qg7 Qg6 Ka7 b8Q+ Ka6 Qbb3 Ka7 Qbc3 Kb8 Qb4+
B2r2N1/B2p1b1P/k6r/R1P4n/Qq1p4/bnQ4Q/1B1p1NKP/1q1B2N1 b - - 0 1 illegal: Other
2R2kB1/K2nPPq1/4QQ1p/1Rn2b2/2p5/1Pr1N1np/R1N3N1/2Q1rRr1 b - - 0 1 illegal: No possible last move
8/Q4NQ1/p1N1KQRB/1k1Rn2R/rb2rqN1/pp1Pn3/r1Q3PP/6q1 b - - 0 1 illegal: Other
qQ1Q1KN1/3bp2R/PB2q2n/8/Qp1Bk1Q1/P3rpn1/1bP3Bb/1RR5 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 c5 f4 g5 fxg5 Bg7 d4 Bf8 dxc5 d4 g4 b5 g6 h6 Nd2 Ra7 Ndf3 Rd7 Ng5 Rd5 exd5 Qc7 N5h3 Qd8 g5 h5 Nf2 Qc7 Ng4 hxg4 Bd3 Qb6 Bf1 Qd8 Kf2 Kd7 Kg3 f5 Kf4 g3 Ke5 f4 h4 d3 a6 f3 h5 d2 h6 g2 a3 b4 d6 Kc6 d7 Qe8 Ke6 Rh7 g7 Rh8 h7 Qd8 Kf7 Kd5 g6 Qa5 d8B Bb7 c6 Qa4 c7 Qa5 c8Q Ke5 Ne2 g1B Bg2 Qb6 Ng3 Nc6 Qg4 Kd5 Ne4 Bc8 Bb2 Bh2 Rb1 Bd7 Bd4 Qb7 Qe2 d1Q B8b6 Qe1 Rf1 Qa8 Nf6+ Kd6 Qb5 Qe2 Bb2 Nd4 Rfc1 Nf5 Qa4 Ng3 B2d4 Qee4 Bf2 Ke5 Bfe3 Bc8 Ke8 Nh6 g8Q Bg7 Bed4+ Kd6 Qf8 Qe6 Ng8 Kd5 Qff4 Bf6 Kf8 Bd7+ Qb8 Be5 g7 Bf6 Qh5+ Ke4 Qhe8 Be5 Qed8 Bf6 Be3 Ba1 Bed4 Bb2 Qbc7 Bg1 Qd6 Nhf5 Q6b8 Qh6 Kf7 Qhc6 Nh6 Qd6 g8Q Qdc6 Qg7 Qd6 Qdc7 Rc8 h8R Bh2 Qd8 Qe6+ Kf8 Rc3 Ng8 Re3 Rh7 Nh6 Qg4+
1rkN2Nn/1b1Pp1bp/2q1Q3/4R2Q/bQ1Pp3/N1P1BQ2/1R2q1R1/6Kn b - - 0 1 illegal: No possible last move
1RQN2k1/p2bnq2/1n5r/4pr1p/1qRP1Q2/Q4K1N/qNP1R1PB/5Q2 b - - 0 1 legal: proof: h4 b5 d4 f5 a4 c5 axb5 d5 dxc5 g5 hxg5 d4 e3 Bg7 Bd3 Be5 Be4 fxe4 Ke2 d3+ Ke1 Bd4 exd4 Qd6 Rh6 Qc7 Rh1 Qd8 b4 Kf8 f4 e5 Kf2 h5 f5 d2 g6 e3+ Kf3 e2 f6 e1Q b6 Bf5 b5 Nc6 b7 Rh7 b8N Qe7 f7 Qe6 b6 Qh4 b7 Qc8 g7+ Ke7 f8Q+ Ke6 Ra4 Bd3 Nc3 Ba6 Rc4 Bb5 Qf1 Qe7 Qf4 Nf6 g8Q+ Qf7 Nh3 Rh6 Qf8 Nd5 Nd1 Nce7 c6 Nb6 c7 Bd7 Nc6 Qb8 c8Q Qd6 b8R Qb4 Nb2 d1Q+ Ke4 Qdd2 Kf3 Qe1 Be3 Qb1 Bg1 Qa2 Bh2 Qf5 Qfd8 Kf7 Rg1 Kg7 Qf8+ Kh7 Nd8 Qg6 Q8f5 Kg8 Q5d3 Qg7 Qa3 Qf7 Qa1 Rf6 Re1 Rf5 Rb7 Rb8 Re2 Ra8 Qf1 Rb8 Qc6 Rc8 Qc5 Rc6 Rb8 Rh6 Qc8
2R5/B2Q3N/K1p1P3/Pr1r4/2k1p1R1/bnB1Q1rB/RQ1np1PB/n6b b - - 0 1 illegal: No proof kernel
k1b4q/1R1Np1rP/1P2Q3/4P2R/4q1pN/2N1pBR1/Nn3Qq1/Q3Kn1n b - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 b5 axb5 Qd7 Ra6 Qd6 Ra1 Qd8 g4 f4 e4 Na6 b3 Qd6 Bb2 Nb8 Bd4 Qd8 Be3 fxe3 g5 h5 Qc2 a5 Qc1 Ra6 Qd1 Rah6 h4 g6 Be2 Bg7 Bf1 Bf6 gxh6 g5 Bh3 g4 Bf1 Bg5 hxg5 Kf7 Nc3 Kf8 Nb1 Ke8 f4 Kd7 d4 c5 b4 Kc7 d6+ Kb7 b6 h4 f5 c4 h7 h3 d5 h2 f6 a4 f7 c3 f8Q c2 e5 c1Q d7 a3 d6 a2 g6 Ka8 b5 Qdc7 d8R Nd7 b7+ Ka7 b8N Ba6 b6+ Ka8 g7 Qb7 Bg2 Qc2 Nf3 Qbc6 Nc3 Q6e4 Nh4 Qb2 Bf3 Nc5 d7 Nf6 g8Q Qg2 Qe6 Na4 Rc8 Bb7 d8N Nb2 Ndc6 Nh5 Rc7 Rg8 Nd7+ Bc8 Rb7 Ng3 Nb4 Rg7 Rc1 a1Q Nba2 Nf1 Rc2 Qg1 Rg2 Qc1 Rg3 Qg2 Qf4 Qcc2 Qa1 Qca4 Rg1 h1N Rh3 Qac6 Qg3 Qc7 Qf2 Qd8 Rh2 Qh8 Rh3 Qh2 Rgg3 Qg2 Ng6 Nc4 Rh5 Nb2 Nh4
1RN1QQb1/B1Q4b/1p2r2N/1Pq1r1QN/k3B2p/4B1p1/2P1b1KP/q1q5 b - - 1 2 legal: proof: b4 e5 d4 c5 dxc5 b6 a4 Nf6 a5 Nc6 a6 Ng8 Ra3 Qg5 Rd3 Na5 Rd4 Nb7 axb7 Qd8 e4 exd4 g4 f5 f4 Bd6 e5 Ne7 e6 Be5 fxe5 f4 Qd2 Rb8 Qd1 Nf5 gxf5 Ra8 Kf2 h5 b8Q d5 c6 g5 c7 a5 e7 Kd7 e8N Kc6 e6 d3 e7 Kb5 f6 g4 f7 a4 f8B a3 Kg2 g3 Nf6 a2 Nf3 a1Q Ng5 h4 Nh5 d4 Qd2 Ka4 b5 Be6 e8Q Qe7 c8Q Bg8 Qbc7 Qc5 Bd6 Rh6 Nf7 Re6 Nh6 Ra7 Qe3 d2 Na3 d1B Bd3 Be2 Be4 d3 Nc4 d2 Rf1 d1Q Be5 Rb7 Nd6 Bh7 Bd2 Qdc1 Qa8+ Ra7 Nc8 Bc4 Bd6 Re5 Qf8 Bcg8 Qd5 Re6 Qg5 Rb7 Qe1 Rb8 Be3 f3+ Kh1 f2 Kg2 Re8 Bdf4 Re5 Qe2 Ra8 Rd1 Ra7 Rd8 Ra8 Qce7 Re6 Bb8 Ra7 Qeg7 Rae7 Ba7 Re8 Qc7 Re5 Qef3 R8e6 Q3f7 f1B+ Kh1 Qac3 Q7e8 Be2+ Kg2 Q3a1 Nd6 Bd3 Rb8 Be2 Nc8
R1QK2N1/k6B/ppr5/rPQ1q2R/3R4/2b2pr1/P3P1rQ/NNQq2n1 b - - 0 2 legal: proof: c4 c5 h4 g5 g4 f5 f4 d5 cxd5 e5 b4 Nd7 b5 Ndf6 fxe5 f4 Bb2 Bf5 gxf5 g4 Ba3 Ne4 Bb4 Ng5 hxg5 cxb4 Na3 Kd7 Kf2 Kc8 d4 Kb8 g6 h5 f6 b3 e6 a6 e7 b6 e8R g3+ Kf3 g2 Ke4 b2 Kf5 b1Q+ Ke6 h4 d6 h3 d5 h2 d7 Rh5 f7 Rh7 d6 Kb7 g7 Ne7 Nf3 g1R g8N Nd5 Ne1 Rh3 Bg2 Qb2 Nec2 Re3+ Be4 Qh4 d8Q f3 Kd7 Bg7 f8Q Qe1 Bh7 Nf4 Qh4 Rc8 Rb1 Rec3 Na1 Nh3 Qf5 Ka7 Qc5 Rc6 Rb8 Rg3 Rc1 Qg1 Nb1 Re3 Rc4 Ra3 Qc1 Ra5 Ke8 Qc3 d7 Qd1 d8Q Ng1 Qc8 Qe3+ Re4 Bc3 Qh6 Qg5 Rd4 Qe5+ Kd8 Nh3 Re1 h1R Rf1 Rh2 Rh1 Ng1 Qhf4 Rhg2 Rh5 Rg7 Qh2 R7g3 Ra8#
1K5k/P3R1N1/1R1r2R1/2R1N2B/1pNrr1b1/1P1P3p/1p1rrqQ1/b4QQ1 b - - 0 1 legal: proof: f4 b5 e4 d5 exd5 g5 c3 g4 Be2 Na6 Kf1 Nb4 Ke1 Nf6 Bf1 Ne4 Be2 Nc6 Bf1 Ng5 c4 b4 Ne2 Nd4 Ng1 Nb5 cxb5 Qd6 Nc3 Qd7 Nb1 Qd8 fxg5 a5 h3 Bg7 hxg4 a4 b3 a3 Bb2 Bf8 Nc3 Bg7 Rc1 Be5 Nb1 Bd6 Bg7 Be5 Bf6 Ba1 Bb2 axb2 a3 Qd6 a4 Qd8 Ke2 O-O Ke3 f5 Kd4 c5+ Ke5 h5 a5 h4 d6 c4 b6 h3 g6 f4 g7 e6 d7 c3 Kd6 e5 a6 f3 a7 e4 b7 f2 b8R c2 d3 e3 g5 e2 g4 e1R Nd2 Rf5 Be2 f1R Ngf3 Rf8 Ne5 Rg1 Ndc4 Rf7 Rb6 Qe8 Kc7 Rf6 d8N Rff1 Ne6 Kh7 g8R Bd7 g6+ Kh6 g7 Kh7 g5 Rf6 Bh5 Re2 Qf1 Rgg2 Re1 c1R g6+ Kh6 Rg1 Qf7 Rc8 Rd2 g8Q Rge2 Ng7 Rd6 Kb7 Qf2 Rc5 Rd8 Rg4 Bc8+ Kb8 Rd4 Qd5 Rd6 Qdg2 Rcc2 Ne6 Rc1 g7 Kh7 Rg6 Ree4 Re3 Re1 Qgg1 Rc2 Rg4 Bd7 Nf3 Re5 Rg5 Rd2 g8Q+ Kh6 Rg4 Ree2 Qg5+ Kh7 Ng7 Kh8 Qg6 Rf5 Re7 Rff4 Nfe5 Rfe4 Rg3 Bc8 Qg4 Bf5 Qf3 Bc8 Rg6 Bg4 Q3g2
2Q1NB2/b1B1Q3/4B3/rq1N1prk/1R1P4/pp2PKPp/Qn1N4/3nbB2 b - - 0 1 legal: proof: f4 b5 h4 c5 b4 e5 bxc5 g5 fxe5 Be7 hxg5 Bd6 a4 Bf8 c4 d5 c6 b4 c5 Be6 Ra3 Bc8 Rc3 Ba6 Rc4 Bb5 axb5 dxc4 Kf2 h5 d4 a5 c7 f5 c8B Kf7 e6+ Kg6 g3 a4 c6 c3 e7 c2 e8N h4 b6 a3 b7 h3 c7 Bc5 Kf3 Nf6 Be6 Qd7 c8Q Ba7 Nc3 Rg8 Qe1 Nc6 b8B Ne4 Nd5 Kh5 g6 Na5 g7 Nc3 Bh6 c1B Bc7 Nc4 e3 Nb2 Qd2 Rh8 g8Q Ncd1 Qf8 Rg8 Qe7 Qb5 Bf8 Rg5 Qc2 Bd2 Rh2 Na4 Qa2 Be1 Rc2 b3 Rc4 Nab2 Rb4 Qc5 Ne2 Qb5 Nec3 Bc5 Ne4 Ra5 Nd2 Bb6 Qcd8 Ba7 Qc8
N1R1Q3/1N2RP2/3Kn2p/4QP1b/2rP1q2/N2R3B/pQ1rkpp1/nQ4b1 b - - 0 1 legal: proof: f4 b5 g4 f5 gxf5 d5 c4 e5 cxd5 b4 f6 b3 f5 Ba3 axb3 Bd6 b4 Be7 b5 Bf8 h4 g5 b3 g4 Bb2 Qd7 Ba3 Qg7 Bd6 Qg5 hxg5 Na6 Bc5 Nb8 Be3 Ba6 Bf4 exf4 Nh3 Bb7 Ng1 Bc8 Kf2 Kd7 d4 Kd6 e4 c5 g6 a5 b4 g3+ Kf3 c4 b6 h6 b5 c3 g7 c2 b7 c1Q b6 a4 e5+ Kd7 Ke4 f3 f7 a3 d6 Kc6 d7 f2 e6 Nf6+ Ke5 Nh7 g8R Na6 b8Q Ng5 e7 Nc5 e8Q Bb7 Rh3 Nge6 Nf3 Nb3 Ng5 a2 Qe1 Ra4 Na3 Rc4 Qd2 Ba8 b7 Bc5 Rb1 Na1 Qb2 Rc2 Rf8 Rd2 Rg8 Bb4 d8N+ Kb6 Rf8 Qc7+ Kd5 Qf4 Re1 Ka5 Qe5 Bd6 Kc6+ Ka4 Kd7 Rg8 b8Q Bf3 Qb1 Bh5 Q8b2 Bc7 Nb7 g2 Be2 Rg6 Rd3 Bb8 Bg4 Rg8 Qe7 Bd6 Rb8 Rc8 Qe8 Rc4 Rc8 Bc7 Nh7 Bd6 Nf6 Bc7 Nd5 Bb8 Nc5+ Ka5 Nb6 Bc7 Nb3+ Kb4 Bh3 Re2 Ke7 Qf3 Q5h8 Nc5+ Re3 Rd2 Qf6 Bh2 Na8 Bg1 Kd6 Qe4 Rc3 Qg4 Re7 Ne6 Qe5 Qh4 Nb5 Qf4 Rg3 Rc3 Nc5+ Kc4 Rg7 Rcc2 Nb7+ Kd3 Na3 Qf3 Qf4 Ke2 Rg3 Rc4 Qe5+ Qe4 Rd3 Qe3 Qa5 Qf4+ Qe5+
2Q3kB/3p1p1N/p2r4/1nq2pKR/1PN1bN2/1r1Qnq1P/Q4PR1/2R1R3 b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 c6 e6 Ra3 a6 Ra2 Bc5 Ra1 Ba7 b6 Ke7 bxa7 Kf8 Bh3 Ke8 Bf5 exf5 Kd2 Kf8 Ke3 g5 b4 g4 Kf4 g3 c4 g2 e4 Kg7 c5 Nf6 h3 Kh7 c7 Ne8 h6 Rg8 c6 Bb7 c8Q Rh8 e5 Qa5 e6 Nc7 e7 Qa4 e8N Qc2 Bb2 Kg8 h7+ Kf8 Rh2 Nb5 c7 Be4 Kg5 Qb3 Na3 Qe6 Qd3 Qc4 Ne2 g1Q+ Rg2 Nc6 Nf4 Na5 Re1 Qc5 Nc4 Qh1 Nf6+ Kg7 Bc3 Rb8 a8Q Rb6 Bb2 Rd6 Qad5 Rg8 h8R Re8 Rh4 Kf8 Nh7+ Kg8 Na3 Nc4 Bh8 Ne3 Qa2 Qc4 Rh5 Qc5 Qb7 Re5 Nc4 Re7 c8R+ Re8 Rg4 Qf3 Rc6 Re5 Rg2 Red5 Qdb1 Rd1 Qd3 Rb1 Rc7 Rb3 Rc6 Qb6 Qc8+ Qd8+ Bf6 Qf8 Na3 Re6 Rcc1 Rc6 Nc4 Re6 Qb7 Qc5 Bh8 Rd6 Qc8+
3B2R1/1PQbR3/1RQ1p1nq/B1Qbp3/3q1k2/2p1r3/P2pP2Q/1N3nKB b - - 0 1 legal: proof: g4 c5 b4 h5 gxh5 b5 c4 a5 Nc3 Ra7 Na4 Rb7 bxa5 b4 d3 Rb5 cxb5 c4 d4 e5 Nc5 Be7 Ne6 Bc5 dxc5 fxe6 f4 Ke7 Kf2 Kf6 h4 Kf5 c6 g5 c7 d5 b6 c3 h6 b3 h7 b2 h5 b1B a6 g4 h6 d4 a7 d3 a8Q Qd5 Nf3 g3+ Kg1 g2 Nd2 Qb3 Qc6 Bc2 b7 Nd7 Nb1 Kg4 f5 Nb8 f6 Qa4 f7 Qb5 f8B Bd7 c8Q Qb2 Bb4 Na6 Q8c7 Bb3 Ba5 Nb4 Bg5 Bd5 Bd8 Qc1 Qc5 d2 Qa4 Kf4 Qac6 Ne7 Rh5 Rg8 h8Q Nc2 h7 Rg3 Rg5 Ne3 Rg7 Ng6 Re7 Nf5 Qf8 Rd3 h8R Re3 Rg8 Qc2 Qg7 Ng3 Qh8 Qf5 Qh2 Qf6 Na3 Qf8 Rb1 Qh6 Rb6 Rf3 Nb1 Rd3 Qh5 Rf3 Kh2 g1Q+ Kh3 Qg5 Bg2 Qd4 Kh2 Re3 Kg1 Qh6 Bh1 Nf1 Qh2+
1K2Q1Qb/4N2p/1p4R1/2BBRp1R/2b2P2/1PPQp2B/2rkq2n/1qR4q b - - 1 2 legal: proof: e4 b5 a4 d5 axb5 Qd7 exd5 Qd6 b6 Qd8 g4 Na6 b7 Qd7 g5 Qd8 Nc3 Nb8 Na4 Nd7 Nb6 cxb6 Ra6 Nb8 Ra3 Nc6 Ra1 Nb8 Bc4 a5 Qh5 Bd7 Rb1 Na6 Ra1 Rc8 Qd1 f5 Be2 Rc6 Bf1 Rf6 gxf6 Qc8 Qg4 Qa8 Qd1 Qd8 h4 g5 Ra2 g4 Ra1 Nc5 Bc4 Ne4 Bf1 Ng5 hxg5 Bc8 Qf3 Be6 Qd1 Bd7 Ke2 Kf7 Kd3 Kg6 Kd4 g3 Ke5 a4 b8R g2 d4 e6 f4 a3 d6 a2 c3 Nh6 d5 Rg8 f7 Qe7 b3 Bc8 d7 Bb7 d8R Rh8 d6 Ba8 d7 Bb7 Qd3 Ba8 Ne2 g1Q Nd4 Bg2 Re8 Qa3 d8Q Qe7 Be3 Rg8 Nc6 Bd5 Bc5 Bc4 Qc2 Qh2 Rc1 Kh5 g6 Kg4 g7 Kf3 Qc8 Qg2 Rh5 Qh1 Bh3 a1Q Qb1 Ke2 Rb7 Rh8 g8B Kd2 Rb8 Qb7 Re7 Ng4+ Kd6 Bg7 f8Q e5 Qd7 e4 Re5 e3 Ne7 Qbf3 Qe4 Bf6 Bd5 Qb1 Kc7 Qe2 Qf7 Bg7 Rg8 Nh2 Qa4 Bf6 Rg6 Ra8 Qg8 Bh8 Qae8 Ra2 Kb8 Rc2 Qd3+
RB2q1R1/Bn1PBP2/2n1BRKp/pbQ2p2/1p3p2/N7/PQ1pQ2r/4k3 b - - 0 1 illegal: No proof kernel
1b3r1n/4rNr1/2N1k2R/1QPbpQ2/1KRRQB2/4brP1/1N1NP2n/2qn4 b - - 0 1 illegal: No possible last move
N3rBQ1/NQRr4/1n1P2p1/2RN2R1/3n1Q1r/K1n3rP/2b2bPN/1q2b1k1 b - - 0 1 illegal: No proof kernel
3qrqkN/1R2rn1R/2b5/1r3rQQ/4nr2/Kp2R3/BPRQP1P1/2b2N1N b - - 0 1 illegal: Other
RK5R/npR3R1/QQqq1Qr1/1P1q2b1/2P1b3/kn3qP1/rq6/2BBBN2 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 hxg5 c6 exf5 Qb6 d4 Bh6 Nc3 Qd8 b5 c5 dxc5 Bg7 Nd5 Bf8 Nb4 axb4 Ke2 d5 Ke3 Kd7 Kd4 h5 Ke5 d4 f4 b3 a4 h4 c4 d3 c6+ Kc7 g6 Kb6 a5+ Kc5 g7 Kb4 a6 d2 c7 b2 a7 b1Q g3 h3 f6 h2 f7 Na6 f5 Nc5 f6 Bf5 c8R Nb3 Nf3 Rh6 Be2 Rg6 Qg1 d1Q Qb6 Be4 Rc7 Qb2+ Ke6 Qf1 Nd2 Qf3 Nf1 Qb8 Kd7 e5 Ra3 Ne7 g8R Nc8 Bd1 Bh6 Rg7 Bg5 f8Q+ Ne7 Rc5 Nc6 f7 Qe8+ Kc7 Qe6 Rg1 h1Q Qd6 Qh6 f8B Qd5 Qf6 Qhh1 Ra1 Qhg2 Rh1 Qgd2 Rb1 Ka3 Rh8 Q2d3 Be7 Q3d4 Rb8 Qd2 Bd8 Qd6+ Kc8 Q2d5 Bc7 Bc2 Bd8 e4 Bc7 e3 Ra1+ Kb4 Ra6 e2 Ra5 e1Q Bd8 Ncd4 Rcc7 Be4 Ra2 Qb1 Rh2 Qb2 Rh8 Q6c6 Be7+ Ka4 Bb4 Qed2 Bc3 Nf5 Ba5 Nd6+ Kd8 Ka3 Rbc8 Rb8 a8Q Q2d3 Qaa6 Ra8 Rb8 Ra7 Ra8 Nc8+ Rcd7 Qce6 Kc7 Qec6+ Kb8 Qdd6+ Rc7 Q3d5 Qe3 Bd3 Qee6 Be4 Qb6 Ra6 Bad2 Ra4 Ba5 Na7 Qa6 Bf5 Qe3 Be4 Qeb6 Ka2 Qbd4 Ka3 Bb6 Kb4 Qe3 Ra1 Ba5+ Ka3 Qeb6 Ra2 Be1+
n3KBq1/1r1n2N1/kQ1RN3/1bb1r2p/P2N3P/1R1RQqr1/1P2Q3/n1R2n2 b - - 0 1 illegal: No possible last move, all moves rejected
1q2r2n/3kR1P1/q2N2Nb/1NQ2BBn/BnQ5/2pq4/1PP2r2/K1BnQ2b b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Ra4 Na6 fxg5 Bc5 g6 Nb8 g5 Bf8 Rg4 hxg4 Kd2 a5 h4 d5 e4 c5 b6 f5 g7 a4 b7 d4 e6 f4 g6 d3 h5 c4 e7 f3 h6 g3 h7 a3 e5 f2 Qe1 a2 Rh6 a1Q Nf3 g2 Na3 g1N Nb5 Ra2 Nh4 Nc6 b8Q Kd7 e8N Ra8 Qa7+ Bb7 Ned6 Ne2 Qc5 Nf6 g8Q Nf4 Kc3 d2 Bd3 f1Q e6+ Ke7 Bf5 d1N+ Kd2 Qb8 Qf7+ Kd8 Qg8 Qaa7 Qf7 Rg8 h8B Nb4 Bg7 N6h5 Bf6+ Be7 g7 Rf8 Rg6 Qa6 Bg5 Bh1 Rh6 Qf3 Ng6 Bf6 Be4 Qf1 e7+ Kd7 e8B+ Kd8 Nh4 Ng6 Bf5 Nh8 Qfd5 Be7 Re6 Qh3 Ng6 c3+ Ke2 Rf7 Qdc4 Qg3 Nd4 Rf8 Ba4 Re8 N4b5 Kd7 Bgf4 Bg5 Bfd2 Bh6 Bf4 Nf2 Bg5 Nh3 Kd1 Qd3+ Bcd2 Rf8 Kc1 Nf2 Kb1 Nd1 Ka1 Rf7 Bc1 Rf8 Bh3 Rf2 Bg4 Qbb6 Bh3 Re8 Bf5 Qb8 Re7+
q2bB1NB/1q1RQ1q1/2kP2P1/Qrnpb3/3qbN1K/2nP4/1N4N1/1Q1B2r1 b - - 0 1 illegal: No proof kernel
1nN2k1R/n1PR4/1Bb5/2Kpb1rq/R3Qqr1/P2PQnR1/Q2b4/1B3B1n b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c6 b4 Ra6 bxa5 Ra8 Nc3 c5 Nd5 Nc6 Nb4 cxb4 Bg2 Nb8 Bh3 Ra7 Bf1 Ra8 Ke2 g5 Ke3 e5 c4 b5 f4 e4 Kd4 g4 h4 d6 c5 g3 f6 g2 c6 b3 h6 b2 h7 b1N f5 b4 a6 e3 a7 b3 f7+ Ke7 f6+ Ke6 c7 b2 h5 e2 h6 e1N Nf3 Qd7 Rh3 Nc3 Qe2+ Ne4 Ne5 b1Q Qe3 g1B Rg3 Qb4+ Nc4 Bg7 f8R Qa5 Rf7 Qh5 Nb6 Bb7 Nc8 Bc6 d3 Qe8 Rd7 Ne7 Kc4 Qg5 f7 Be5 f8Q Nf2 Qff4 Qeh5 Qfe4 Rg8 h8R Kf7 h7 Nf3 Bb2 Qf6 Bd4 Rg5 Bb6 Qf4 Kb4 Nh1 Kc4 Bf2 Kb4 Na6+ Kc4 Rb8 a8B Be1 Bb7 Bd2 Ba8 Ba4 Bd5+ Kg7 Be6 Bc6 Bf7 Bb7 Kb5 Nc6 Bg8+ Kf8 Bb3+ Rg8 Bc2 Na7+ Kc4 Ba8 Bb1 Rb7 Kd5 Nb8 Kc4 d5+ Kc5 Qhg4 a3 Qgf5 Ra2 Qh5 Rb2 Ke8 Rb4 Kf8 Ba5 Rb6 Ra4 Rg6 Bb6 Rg5 Q4d4 Rg4 Qb2 Ke8 Qa2 Rf8 Rg8 Bc6 Ne7 Bf6 h8Q Bb2 Qh7 Be5 Rh8 Rfg8 Qhe4 Kf8 Rh7 R8g7 Nc8 R7g5 Rh8+
rR1N1r1Q/1pB2k2/N2KQ3/5qb1/1P1nN1Q1/1RPb4/r2qnPq1/R3R1r1 b - - 0 1 illegal: No possible last move
n1n2r1R/1p5b/1RBQ2rR/1Pb2k1Q/RnQ3r1/N4P1P/1nN2N1K/1r1q4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 d5 gxh5 d4 b5 d3 Ba3 Qd4 Bb4 axb4 cxd3 Qc5 d4 Qd6 d5 Qd8 d4 Kd7 a4 e5 a5 g5 f6 c5 f7 e4 a6 b3 h6 b2 h7 g4 a7 e3 d6 Ke6 d7 c4 d5+ Kf6 d6 e2 Nh3 c3 Qc2 g3 Ra4 g2 Na3 Be7 f8N g1R Ne6 Rg4 Nd4 Na6 Bg2 Nc7 Bc6 b1R+ Qc1 c2 f3 Rb8 Kf2 e1N a8R Nd3+ Kf1 Rg6 R8a6 Nb2 Nf2 Na8 Rb6 Rg4 h3 Bf8 Rg1 Ne7 Rg3 Rhg8 Kg1 Ke5 h8R R8g6 Kh2 Kf6 Qf1 c1N Ndc2 Na2 Qc4 Nb4 Rg1 Ke5 Re1+ Kf5 Re6 Qe8 d8Q Qd7 Qc7 Qd8 Qc3 Bd7 Qc4 Be8 d7 Nc8 Qg3 Bc5 Qh4 Bf7 Rd6 Bg8 Re6 Bh7 Rd6 Qf6 d8Q Qd4 Re6 Qd1 Qd6 R6g5 Rh6 Rg6 Rd8 Na7 Rg8 Rf8 Rh8 Nc8 Qh5+
Q2qr3/2p1N2B/2n1KbP1/1P5N/1BP2N2/n3kB1r/rQ1n4/QR1rnb1Q b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 h5 g4 Ne7 g6 Ng8 b4 Nc6 g5 Nb8 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kf2 Ke7 Ke3 Ke6 Ke4 a5 h4 g3 c4 d6 b6 f6 b7 a4 g7 a3 g6 g2 h5 a2 h6 a1N h7 Ra7 Nh3 g1N Bd2 Nc2 Nc3 Nc6 b8Q Ra2 Nd5 Na3 Bg2 Be7 Qa1 Nf3 Rb1 Ne1 Bf3 f5+ Kf4 Nf6 e4 Rg8 h8Q Re8 b5 Bb7 Bb4 Ba8 Kg5 f4 Qb6 Bb7 Qg1 Bc8 Qh1 Bb7 Nb6 d5 Nc8 d4 Qb2 d3 g8B+ Kd7 Kf5 d2 Bh7 d1R Bh5 f3 Nf4 f2 Bf3 f1R Qa1 Bc5 Ne7 Bd4 Qb2 Rf2 Qa1 Rh2 Qg7 Bc5 e6+ Kd6 Qh8 Rh3 Qg7 Ng8 Qgb2 Nf6 Ba5 Bb6 e5+ Kc5 Bd2 Ba5 Bc3 Ne4 Bb4+ Kb6 Ng8 Rf8+ Nf6 Nb8 e7 Bc8+ e6 Rh4 e8N Nd2 Bd6 Bc3 Be7 Bd4 Nd6 Kc5 Qg1 Rg8 Qh1 Bd7 N6h5 Bf6 Bf8 Bc8 Ba8 Bb7 e7 Bg2 Nc8 Bf1 Be4 Rh3 Bf3 Nc6 e8Q+ Qd6 Be7 Rf8 Qd8 Re8 Bf8 Bc3 Be7 Kd4 Bf8 Qd5+ Kf6 Qd7 Bb4 Qd6+ Kf5 Ke3 Ne7 Bf6 Qa8 Qd8 Ke6
rQb3n1/k3Q3/3r1P1N/1R4n1/bK1NP1p1/2p2QP1/qBRq3r/R2Rb1N1 b - - 0 1 illegal: No possible last move, all moves rejected
2q1bQ2/2P2r1Q/nr2N3/2nNRp1P/Q2nNpR1/2K2P1q/6q1/2R1kNbB b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 h5 g4 Rh7 gxh5 Rh8 Bf4 exf4 Kd2 Ke7 b4 Ke6 c4 Ke5 h4 Kd4 e4 a5 c6 f5 f3 d5 c7 g5 c5 g4 b6 a4 e5 a3 h6 a2 b7 g3 e6 g2 b5 Ra6 h7 Bd6 b6 Ra4 e7 Nf6 e8R Ra7 h5 Nc6 b8Q Ng8 b7 Nf6 Qa4+ Nb4 c6 Bd7 c8N Bc5 Ne7 Qc8 Nh3 g1Q Nf2 Qg2 Rh2 Qh3 Rg8 Be8 Ne4 Nd7 Rg4 Rf8 h8Q+ Rf6 Qh7 Bb6 Rg6 Nc5 Rg4 Ra6 c7 Rf7 Re2 Kc4 Bg2 d4 Qa8 d3 b8N Ba7 Re3 Rb6 Nd7 Kd4 Nf8 Kc4 Q4c6 Na6 Bh1 Kb4 Ne6 Qg2+ Kd1 d2 Kc2 d1N+ Nbd2 Nc3 Qb8 Nb5 Rc1 a1Q Qca8 Qh3 Nf1 Qg7 Nd5+ Kc4 Re2 Nd4+ Kd2+ Kb3 Qc6 Kb2 Rc2+ Kb1 Kc3 Qg5 Rb2+ Kc1 Rbc2+ Kd1 Qa4 Qg6 Nd6 Qg8 Re5 Qg7 Ne4 Ke1 Rh4 Qgg2 Rg4 Qb7 Qd8 Qa8 Qe7 Qc8 Qf8 Rb2 Nde3 Nd7 Rg8 Nb3 Nd1 Bg1 Nde3 Ndc5 Rg4 Nd4 Nd5 Rb6 Rc1+
n1R2q2/b2N4/1Q1Q2k1/Q4N1N/1Bb3KR/P1rbPpN1/1n2qPrp/4R1r1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 h4 Ra7 hxg5 Ra8 d4 Kd7 e3 e6 d6 Nc6 d5 Nb8 Bc4 Ke8 d7+ Ke7 Bb3 Kd6 Bc4 Kc5 d6 Kc6 Bd5+ exd5 Ke2 f5 Kf3 h5 g4 b5 g6 d4 g7 Kd5 a3 Ke5 g5 c5 a6 b4 a7 h4 g6 Kf6 Ra2 h3 Rh2 d3 Qc2 b3 Nc3 d2 Qd3 d1Q+ Nge2 b2 Qd5 b1B Rd2 f4 Rb2 c4 Nb5 c3 Qb3 c2 Bd2 c1R Nd4 Nh6 g8R Ba6 g7 Kg6 Qd3+ Nf5 Bb4 Rc3 Kg4 f3 Ng3 Bc4 Re2 Na6 Re1 Qe2 Rhh1 Qf6 d8Q Nc7 d7 Bc5 Qd2 Rc8 a8N Bbd3 Nb6 Nd6 Ndf5 Na8 Qc7 Rb8 d8Q Qf8 Nd7 Ba7 Qa5 Rh5 Qdb6 Rg5+ Kf4 Rc8 Rh8 Re8 g8N h2 Rh4 Re7 Ngf6 Rg7 Nfh5 Rg8 Nf1 Rg1 Nfg3 Be6 Rc1 Nc4 Kg4 Nb2 Qd1 Rg2 Re1 Rg7 Qb3 Rg1 Qbd5 Rg2 Qdd6 Rg1 Ndf6 Bec4 Nd7+ Kh7+ Kh3 Rc2 Nh1 Bf7 Qe7 R7g2 N1g3 Rc6 Rcc4 Kg6 Kg4 Be6 Qd6 Rc8 Re4 Rc1 Rc4 Rc3 Nhf6 Bg8 Rc8 Bgc4 Nh5+
B5Nq/1q4k1/nrR2n2/3P2KN/3Qrnb1/pQRQpr2/1N2PRP1/b1N5 b - - 0 1 illegal: Other
1Rr1Rq2/3pBPN1/1pnP4/Q1bK2Q1/4BbP1/1r2k1nQ/Q2Bq3/3Rq2b b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Na6 axb5 Bc8 b6 Nb8 b4 Bg7 b7 Bf8 b5 Nh6 b6 Rg8 Nc3 Rh8 Nd5 Na6 b8B Ng8 b7 Bh6 Nb6 cxb6 Qg4 Bg7 Qd1 Bf8 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 h4 c4 h3 f4 h2 d4 Qe8 f6 Kg6 f5+ Kf7 d5 Ne7 g6+ Kg8 c5 Rh6 g7 Kh7 c6 Nb4 c7 a5 f7 a4 f6 Kg6 Bd2 a3 Qe1 a2 Bd3 Rh3 Nf3 Nf5 Nd4 Bc5 f8Q Nc6 Qe7 Qf8 Rd1 a1B Ne6 Bad4 f7 Be3 Q7h4 Bf4 d6 Ng3+ Kd5+ e4 g8Q+ Qg7 Rg1 h1Q Qgh8 Qh6 Ng7 Qf3 Rg2 Qf1 Re2 Qf3 Re3 Qe2 Q8d8 Qh8 Bb1 Qf8 Qf2 Rh1 Qh3 Ra3 Qe7 Rb3 Qe5 Re1 Qa1 Kg5 Qa5 Qb5 Re2 e3 Be4 Rh1 Ree1 e2 Qe3 Rb1 Qea3 Rb3 Qa2 Rf1 Ba7 Rh1 b8R Bb7 c8Q Rf1 Qc7 Rff3 Qc8 Rfc3 Qe8 Bfe3 Qe7+ Kf4 Rd8 Ba8 Bb8 Rc4 Bc7 Rc1 Rh1 e1Q Re8 Qbe2 Bd8 Rc4 Qeh4 Rcc3 Be7 Bb7 Bc2 Kf3 Qh6 Bf4 Qg5 Kf2 Be4 Rc2 Bb4 Ke3 Rb8 Rc1 Rg1 Ba8 Bd2+ Kf2 Rh1 Na7+ Rb7 Bb4 Qh7 Qh8 Kd4 Rcc3 Bf5 Rc8 Rb8 Bb7 Rh4 Bh1 Be4 Nc6+ Kd5 Qe8 Qg8 Bc5 Rh8 Qd8 Qh7 Qe8 Qh3 Qg8 Nh5 Qg7 Re8 Qf8 Bc3 Ke3 Ng7 Bf3 Bb4 Bh1 Bd2+
R4RR1/1P3Q2/KpqN2rn/BrN1p2n/NQ1QQ1bq/3PP3/1q1b2n1/5k2 b - - 0 1 illegal: No proof kernel
4bR1q/2NR1QkP/1p3Rr1/QqPR4/1P3B2/1prr4/1Q2nK2/bn1NN1n1 b - - 0 1 illegal: No possible last move, all moves rejected
Q2R2N1/r4R1q/1r2RNN1/ppQ2bq1/k2nQ2B/1P1n1nb1/2RPP2b/5K2 b - - 0 1 illegal: No possible last move, all moves rejected
2qB3R/4PQ2/nP1NR1np/bp6/B1R3rn/1PBb4/2rqQKQ1/2k3Rr b - - 0 1 illegal: No proof kernel
n1RN4/2rq1B1r/2QQR1Qq/bP1bK1Rp/1b3Pp1/1N6/6NP/1q2k1nR b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Na6 g4 Nb8 gxf5 e5 d4 Be6 d6 Kf7 d5 Bc8 Be3 Ke8 Bd4 exd4 Kd2 Kf7 Kd3 Kf6 Ke4 Kg5 b4 Kg4 d7 h5 f6 c5 f7 a5 d6 g5 b6 c4 b7 c3 b5 c2 Qe1 c1Q e3 d3 Ra4 d2 Bc4 d1Q Ra2 a4 Qc3 a3 Ke5 Nf6 e4 Na6 b8R Nd5 Nd2 Bb7 Nh3 Nac7 Rc8 Nf4 Nb3 Ra7 Re2 a2 Bd5 Qdc2 Qc6 Kf3 Bc4 Be7 f8R g4 Rg8 Rh7 Rg5 Q2b1 Bf7 Na8 Ree1 Qe8 d8Q Ne2 d7 Ng1 Nf4 Bb4+ Qe7 Qe3 d8N Qd7 Qed6 Qb6 Ng2 a1B+ Kd5 Ba5 e5 B1c3 e6 Bcb4 e7 Qa6 Re6 Qb6 Rf6+ Ke2 f4 Kf2 e8Q Qa6 Ne3 Ke1 Ke5 Qb6 Re6 Qa6 Qcc5 Bd5 Qg8 Rc7 Qg6 Qac6 Qb6 Qc5 Qdc6 Qf8 Qbc5 Qh6 Q5d6 Ke2 Ng2 Kd1 Ne3+ Ke1 Ng2+
Q3N1Q1/1q3Q2/p1r1p1NR/3nK1B1/4n2r/1kNbPR1N/1qR2P1P/b4b1q b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 f5 axb5 h5 g4 Nf6 gxf5 Ng8 Bh3 Nc6 Bg4 hxg4 Qd4 Nb8 Qd6 Na6 Qd1 Nb8 Kd2 Kf7 Ke3 d5 Kd4 g5 c4 g3 b4 g4 b6 g2 b7 g3 f6 Ke6 c6 a6 c5 Qd7 f7 Nf6 c7 Ne4 b5 Rh4 Nh3 g1Q c6 g2 b6 Ra7 Bg5 Bg7+ Bf6 Qe1 Qb3 g1Q Ra3 Qc1 Nc3 Qb2 f8N+ Kd6 Qa2 Qg2 Ra1 Qh1 Re1 Bh8 Ng6 Ra8 Kd3 Kc5 Bg5 d4 Qf7 Kb4 Rc1 Qd5 Rc2 Nd7 b8R Ndf6 b7 Bf5 c8N e6 c7 Qdb3 Nd6 Nd5 Rg8 Rc8 Ne8 Bf6 Rh8 Bg7 Ng1 Bh3 Rh6 Bf1 Nh3 Bh8 Ra1 Bf6 Rd1 Ka3 b8Q Qb7 Kc4 d3 Qa8 d2 Rdc1 d1B Kd3 Bd8 Kd4 Kb3 Ke5 Be7 e3 Bde2 Ra1 Bd3 Ra4 Nd2 Rg4 Ne4 Rg3 Bf8 Rf3 Bg7+ Nf6 Rd8 c8Q Rd6 Qd8 Rc6 Qdg8 Rc8 Kd4 Qc1 Nb5 Rc3 Qff8 Rc6 Qff7 Bf8 Ne8 Ba3 Qe7 Bb2+ Nc3 Ba1 Qef7 Qb2 Ke5
4B1nN/P2pnQ1r/Rbqqp2q/3P4/R2NQb1N/4P2k/r3Q1R1/5rQK b - - 0 2 legal: proof: c4 b5 b4 g5 f4 a5 bxa5 b4 fxg5 Ba6 Qb3 Bb5 Qc2 Bg7 Qd1 Bf8 cxb5 h6 g4 Na6 g6 Rc8 g5 Rb8 g7 Rc8 g6 Rb8 Bb2 Ra8 Bf6 Nb8 Bg5 hxg5 Kf2 c5 Kg2 f5 a4 c4 h4 g4 d4 b3 d5 b2 h5 c3 e3 g3 b6 c2 b7 c1R a6 e6 a5 Ke7 a7 Kf6 h6 Kg5 a6 f4 h7 Rc4 Na3 b1Q Nb5 Qb4 Nf3+ Kg4 Nbd4 Nc6 b8Q Qf6 Qe5 Rc1 Ra4 Nce7 Qe4 Qd6 Qe2 Qc6 Kg1 g2 Rh2 Kg3 Nh4 f3 Qd1 Qg5 Be2 Qh6 Qf1 Ra1 Bd1 Ra2 Qe2 Rb8 a8R Rb1 a7 Rba1 Rb8 Rc1 Rb6 Rb1 Q4d3 Qd6 Rba6 Kg4 Kf2 g1B+ Kf1 Rba1 Rg2+ Kh3 Qe4 Bh2 Kf2 Bg3+ Kg1 f2+ Kh1 f1Q+ Rg1 Nf6 g8Q Bf4 Qf7 Nfg8 g7 Qe1 Bc2 Qc1 Bd1 Qcc6 Rg2 Nf6 g8Q Rc1 Qgg6 Nfg8 Rf2 Rb1 Qg1 Rc1 Bc2 Rf1 Rg2 Bg7 Ndf5 Bd4 Bb1 Bb6 Nd4 Nf6 Bd3 Rd8 h8N Nfg8 Qe5 Re8 Bg6 Rd8 Qe4 Rf8 Qg7 Rf7 Qh7 Rg7 Be8 Rf7 Qhg6 Rh7 Qf7
N4QBk/r1b1rp1n/2B1NR1P/2pr1Q2/1BP1N3/2K1QbP1/3n2rN/1q2r3 b - - 0 1 legal: proof: b4 e5 a4 b5 axb5 h5 f4 g5 d4 h4 dxe5 h3 Ra3 Qe7 Rf3 Qd8 Rf2 Ne7 fxg5 Ng8 g3 Qe7 Rg2 hxg2 Bb2 Qf6 Bc1 Qd8 Kd2 d5 c4 c5 e4 a5 h4 d4 e6 a4 b6 d3 b5 a3 e7 a2 g6 a1R e5 Ba6 b7 Ra3 b6 Qd7 h5 Qh3 g7 Ra2+ Qc2 Nd7 b8N Rb2 b7 Rb3 h6 Qe6 Nf3 g1R Ba3 Ra7 Nc3 Qf5 Nh2 Ngf6 g8B Rb1 Bb4 Nh7 Ne4 Re1 Kc3 d2 Bg2 d1R Nc6 Ndf6 Nd8 Rd5 b8Q Bb7 Bf3 Rg2 Rf1 Bc6 Qc8 Qg6 Qf5 Bb7 Qe2 Bg7 Ne6 Bf8 N4g5 Bc6 Qe3 Ne4+ Kb3 Nd2+ Kc3 Bg7 Ne4 Bf6 Rf2 Bg5 Rf1 Bf4 Rf2 Kd7 e8N Ke7 N8c7 Ba8 Nd4 Kf8 e6 Bc6 Na8 Bc7 Bd1 Bb7 Ba4 Bc6 Qfg5 Bb7 Rf6 Qf5 Bc6 Qg6 Nf2 Qb1 Qf5 Bf4 Be8 Ng5 Bh7 Bc7 Qg6 Rd6 Qf5 Bf3 Bc6 Rd7 Ne4 Rd5 Bg6 Kg8 e7 Nh7 e8Q+ Nf8 Qh3 Rg5 Ne6 Rd5 Bh5 Kh7 Bg4 Rg8 Bf5+ Kh8 Qh5 Bd8 Bh7 Bc7 Nf4 Rgg5 Bg8 Nh7 Qf8 Rge5 Qf5 Re7 Ne6
K1R5/4N1Qb/Pk3q1r/7b/pn1PQ3/PRrR2Q1/pn2bNbb/1NQ4B b - - 0 1 illegal: No proof kernel
1nkn4/1Q1R1pR1/2q1Qn2/1NR1Kpb1/br1Q1P2/1PP5/1bB4n/RN1N1r2 b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 h4 Bg5 h3 Bf6 exf6 gxh3 Ke7 h4 Ke8 h5 Rh6 Nf3 Rh7 Ng1 Rh8 Kd2 a5 Kc3 g5 Kd4 d5 f4 Kd7 h4 g4 e4 f5 b3 a4 c6+ Kc7 e5 g3 h6 g2 h7 a3 e6 a2 b6+ Kd6 c7 Ra7 h5 Ne7 c3 Rb7 h6 Qd7 Nh3 g1N Qe2 Qc6 Nf2 Bd7 c8R Rg8 h8Q Nf3+ Ke3 Rg1 h7 Bg7 Nd1 Bh6 Qd4 Nh2 h8R Bg5 Rhg8 Be8 Bg2 Rf1 Be4 Bd7 Bc2 Be8 Qh8 d4+ Kd3 Bd7 Rg7 Be8 Kd2 d3 Ke3 d2 Kd4 Qb5 Rc5 Qc6 Rg1 Bd7 Rg3 Be8 Rd3 Bd7 Ne3 d1N Qe1 Nf2 Nd1 Ne4 Rd2 Rc7 b7 Nf6 Qd8 Rc8 Qh8 Kc7 Ke5 Rd8 Rd3 Be8 Qe3 Rd4 Qe1 Nc8 e7 Na7 Rd2 Bd7 e8N+ Kd8 Qe3 Rb4 Nd6+ Be8 Qd4 Kd7 Qh6 Kc7 Na3 Bd7 Ndb5+ Kd8 Rc1 a1B Rd3 Bb2 Ra1 Qa6 Nb1 Qb6 Nd6 Ba4 Rd2 Qc6 Rd3 Na6 b8Q+ Kd7 Qb6 Nb8 Nb5+ Kc8 Qg1 Ba3 Rd7 Bc1 Qd4 Bb2 N5a3 Nb5 Qa7 Nd6 Nb5 Nb7 Qg6 Nd8 Qa8 Nd5 Qe6 Nf6 Qb7+
1Q1Kn3/n1QNr1b1/2rR4/rb4N1/1r2p3/2NbP3/RP2QpP1/qB3NkR b - - 0 1 illegal: No proof kernel
2r1b2r/p1N2nQB/P2q4/kNB1Rr2/6Pp/BbKPQb1n/3N1b2/3N3Q b - - 0 1 illegal: No proof kernel
3k1q2/1K4Rr/1P2pR1Q/R6Q/pN1Bn1r1/P1brbN2/3P1N2/Qr1bn2R b - - 0 1 legal: proof: e4 d5 exd5 b5 c4 g5 cxb5 Bf5 f4 Bc8 g4 h5 Bh3 Nd7 fxg5 Bg7 g6 Bf8 g5 Nb8 Bg4 hxg4 Kf2 c5 Ke3 a5 Ke4 c4 h4 c3 b4 f6 d6 g3 Kd5 f5 h5 g2 h6 f4 h7 c2 g7 f3 b6 f2 d7+ Kf7 b5 f1R b7 Nh6 g8R Ng4 g6+ Kf6 b6 Bg7 Nf3 g1B Bb2+ Ne5 Bd4 c1R Nc3 Na6 b8Q Be3 Qa7 Qf8 d8N Nc5 Nc6 Rb1 Nb4 Rg1 Qe2 Rg2 Nd1 Rg4 Nf2 Ne4 Qb5 Bd7 Qaa6 Rd8 Qa8 Bgh6 g7 Kf7 Qac6 Ke8 a3 Bhg5 Qh6 Nd3 Qc5 Be6+ Kc6 a4 Kb7 Bf6 Qch5+ Kd7 Rf1 Bb3 Rh1 e6 Rf1 Qc5 Rf8 Bd1 g8R Bg7 Rf5 Qf8 Ra5 Ne1 Rh1 Be5 Rg6 Ke7 Rf6 Rd5 Rg1 Kd8 Rg2 Rhg8 h8Q R8g7+ Ka8 Rh7 Rg1 Rf4 Rg7 Rg4 Kb7 Rb2 Bc5 Rd3 Rb1 Bc3 Bd4 Bb3 Rd1 Rb1 Rc1 Nc2 Rf1 Ne1 Rh1 Bd1 Re7 Rb2 Bc5 Bb3 Rff7 Rb1 Q8e5 Bcd4 Rf6 Bd1 Rg7 Ba1 Qc3 Bb2 Bd4 Ba1 Qb3 Bb2 Qa2 Bc3 Qa1
R2r4/2R2NRk/1Q3Q2/1P4q1/1p1n1bpb/n3B2b/1rPnNNPR/QbK5 b - - 0 1 illegal: No proof kernel
3n1bK1/N2Q3P/nBN1rP2/R4Q2/4pR2/1Nq2bR1/bQpkPn2/1r4bN b - - 0 1 legal: proof: c4 a5 b4 f5 bxa5 d5 cxd5 h5 g4 Rh6 gxf5 Rh7 Bh3 Rh8 Bg4 hxg4 d4 Kd7 Kd2 Kd6 Ke3 c5 Kf4 b5 Kg5 e5+ Kg6 b4 Kf7 g5 f4 e4 a4 c4 h4 c3 h5 g3 h6 c2 h7 g4 a6 b3 a5 g2 f6 g3 a7 b2 f5 Qb6 a6 Nc6 Ra3 Qb5 Nd2 b1B Rh4 Qc4 Nb3 Qb5 Be3 Qb4 Rf4 Qc5 Nh3 g1N Nf2 g2 Nh1 Rb8 a8R Qb5 a7 Kc7 d6+ Kb6 d7 Nh3 d8N g1B d5+ Nd4 d6 Qc5 d7 Kb5 Nc6 Kc4 d8N Nb5 Qd7 Ba2 Nbd4 Ne7 Bf2 Nc7 Rg3 Rg8 Be3 Rb1 Bf2 Rg4 Be3 Ng6 Kg8 Nf2 f7 Rg5 f6 Re5 Qf5 Nh8 Qd7 Be7 f8Q Kc3+ Qf7 Bf8 Qfe6 Nf7 Qf5 Nd3 Nb3 Qc4 Bb6 Na6 Nbd4 Qc5 N8e6 Kd2 Nc7 Nf2 Ncb5 Kd1 Rb8 Qa3 a8Q Kd2 Qab7 Qc3 Ra8 Re6 Nba7 Nd8 Nab5 Nb4 Ra5 Na6 Qb8 Kd1 Nba7 Kd2 Qdb7 Bd7 Q7c8 Be8 Qd7 Bh5 Qbe5 Bg4 Qb5 Bh5 Qb2 Bf3 Nb3+
1N4nk/P2KQ1n1/3N2R1/B1rp1n1N/1bpQb3/2nB1b1r/2P1qB1P/5B1Q b - - 0 1 legal: proof: d4 a5 g4 e5 dxe5 f5 gxf5 h5 b4 Ne7 bxa5 Ng8 a4 Bc5 Ra3 Bd6 Rg3 Bf8 Rg4 hxg4 Kd2 Kf7 Ke3 c5 Ke4 g5 Kd5 Kg7 e4 b5 f4 b4 f6+ Kh7 f7 b3 a6 b2 f5 c4 e6 d6 e5 g3 a5 g2 f6 g4 e7 g3 e8Q Qc7 a7 Bh3 e6 Qe7 a6 Nc6 Nc3 b1B Bd2 Nd8 Ne4 Rc8 a8Q Ba2 a7 Rc6 Ba5 Bb3 Qd4 Bg4 Nh3 g1N Nf4 g2 Nh5 Nf3 Rg1 Ba4 Qd7 Qe8 e7 Ne6 Qc7 Ng7 Qcd8 Nf5 Ke6 Rc5 Qad5 Bc6 Qd7 Qd8 e8B N3h4 Qe7 Bf3 Bd7 Qb8 Be8 Ba8 Kd7 Qb1 Qb7 Qe1 Qb1 Qe2 Qe1 Bh6 f8B+ Ng7 f7 Bd2 Qea1 Nhf5 Qc1 Ne6 Bh6 Be1 Be3 Bb4 Bf2 Neg7 Qca1 Ngh6 f8N+ Kg8 Neg3 Bae4 Bg6 d5 Qb1 Rh7 Qba1 Kh8 Qe1 Bd3 Ne4 Ng8 Nd6 Bde4 Kd8 Qd1 Nd7 Qe2 Nb8 Rh6 Kd7 Rh7 Nf6 Rh4 Nh5 Rh3 Rh1 g1N Qea1 Qd1 Bh7 Ne2 Rg1 Nc3 Rg4 Ng3 Bf5 Qe2 Rg6 Bg2 Qe1 Bef3 Bd3 Nf5 Qc1 Be4 Qcg5 Bh1 Qg1 Bhf3 Qh1
3N2bQ/3RR1B1/q1Q1P2b/pQP1b1p1/3r2kR/1nr1Q3/1KB3P1/Bnr1r3 b - - 0 1 illegal: No proof kernel
1Rb3b1/QqRpQ3/5k2/1nKBbP1p/6Bb/BQ1PrP2/1RN3R1/1nn4r b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 Na6 b4 Bg7 Nc3 Nb8 Na2 Na6 axb5 Bf8 b6 Nb8 b5 Nh6 Nb4 cxb4 Ra5 Ng8 Ra6 Bh6 Ra1 Bf8 Ke2 Kf7 Kd3 a5 Kc4 h5 g4 e5 f3 e4 b7 b3 g6+ Kg7 b6 e3 g5 a4 d3 e2 Ba3 e1B Rc1 b2 Bh3 b1B Bg4 Nf6 Rh2 Na6 b8Q Bfb4 b7 Bd6 Ne2 Bf2 Nd4 Nd5 Qa7 Bh4 b8R Nac7 c3 Rh7 Nc2 Be5 Kc5 Ba2 c4 Nc3 Qe1 Qg8 Rcb1 N7b5 Rb2 Nb1 Rg2 Qe6 Qe3 Qa6 Qe4 Qb7 Qe1 Kg8 g7 Kf7 g6+ Kf6 g8B Re7 g7 Bb3 Bd5 Re6 Bb4 a3 g8Q a2 Ba3 a1N Qb4 Re7 Qe8 Ba2 Qb3 Re6 Kb4 Re7 c5 Re6 c6 Re7 Qc4 Nb3 c7 Nc1 Qb3 Re6 Qb6 Ra4+ Kc5 Re4 Qa7 Re1 Qba4 Bc4 Qb3 Re7 Bc6 Bg8 Bd5 Rh1 Qd8 Bf4 Qe8 Re3 Qe4 Qa8 Qeb4 Be5 Qe4 Bb7 c8R Ba6 Rc7 Bc8 Qeb4 Qb7 Qe4 Bc3 Qe8 Be5 Qe7+
nB2q1B1/RKP2bb1/1Qr5/NQ2rqBQ/n1pP4/RR5p/2n1n2P/4k1R1 b - - 0 1 illegal: No proof kernel
q5B1/P2qnKn1/np2rpQR/Q1n4R/Q2BRP2/3bb1PB/4R3/1rN1k3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 h4 Ra8 hxg5 e6 d4 Bd7 d6 Bc8 Nc3 e5 d5 Bh6 Nb5 Bf8 Nd4 exd4 Kd2 Kd7 Kd3 c5 Kc4 h5 f4 f6 a4 d3 e4 d2 g6 h4 g3 h3 e5 h2 a6 b6 a5 Bg7 a7 Rh4 a6 Ne7 Bb2 Bf8 g7 Rh7 Qb3 d1N g8B Bb7 Ra4 Ne3+ Kc3 c4 Kd4 c3 Ne2 c2 Nc1 Rg7 Bh3+ N3f5+ Ke4 Bc6 Bd4 Bb5 Qb4 Bf1 Qa5 Qc8 Na2 c1N e6+ Kd8 d7 Kc7 d8R Nd3 d6+ Kc6 Rb4 Qd7 Nc1 Rh7 Rb5 Ng7 Re8 Rh4 Rh5 Nc5+ Ke3 Bd3 Kf3 Qc7 d7 Kd6 d8R+ Qd7 Rh6 Kd5 Qa4 Rh5 Kg4 Re5 Qa5 Kc4 Kh4 Nc8 e7+ Re6 Kg4 Qb7 Rd5 Qd7 Rd1 h1Q Rdh5 Qe4 Rd2 Qed5 Rd8 Qg2 e8Q Ne7 Qg6 Qgc6 Re2 Qa4 Re4 Qa2 Ne2 Kb3 Kh4 Kc2 Nc1 Kd1 Kg4 Nbc6 Kh4 Nb4 Kg4 Rc8 a8Q Qad5 a7 Nba6 Qc6 Rc7 Qcb5 Qa8 Qba4+ Nb3 Ne2 Rc1 Kh4 Rb1 Nc1 Nc8 Kg4 Bb4 Kh4 Bd2 Kg4 Ne8 Kf5 Be3 Qf7 Ng7+ Kg6 Nb8 Qe8 Ne7+ Kf7 Na6 Rc8 Qab7 Rc2 Qa8 Rd2+ Ke1 Kf8 Qac6 Qg6 Nbc5 Kf7 Qa8 Re2#
NK2Nr2/1Bp1p3/k2nrN1N/b1QQPPb1/3qR1P1/B1bq2Q1/2b3n1/B7 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 f5 hxg5 d4 e4 d3 e5 Nd7 cxd3 Nb6 d4 Nd7 d5 Nb8 Ra3 Qd6 Re3 Qd8 Re4 fxe4 Ke2 Kd7 Ke3 h5 Kd4 a5 Kc5 a4 d4 h4 g4 a3 f4 a2 f5 a1B d6 e3 b6 h3 b5 e2 d5 e1B b7 h2 g6 Bh4 g7 Ra2 b6 Rh7 Qe1 Rb2 Bg2 Re2 Na3 Ra2 Ne2 Bg5 Nc4 Bf6 Nc3 Rf2 Na4 Rh6 Ba3 Rc2 Qg3 Rh4 Re1 h1Q Re4 Nc6 b8Q Bb7 Qa7 Ba6 b7 Nd4 b8B Nh6 g8N Bg5 Nf6+ Kc8 Bf3 Ne2 Kc6 Qd1 Qc5 Rd2 Ba7 Bc3 Bb6 Kb8 d7 Nf7 Nd6 Bfh6 Nde8 Nf4 d6 Bd3 Ba5 Qc2 Nb6 Ka7 Na8+ Ka6 B5b4 Rhh2 Bb2 Rd1 Ba1 Ng2 Ba3 Qb2 Nb6 Bc2 Na8 Qdb8 d8Q Q8b3 d7 Nd6 Qb8 Qc4 d8N Qd3 Nf7 Ba5 Qd8 Qbd4 Kd7 Bgd2 Kc6 Bhg5 Nh6 Bdc3 Qd7 Rh4 Qe6 Rb1 Qed5 Rb6+ Kd7 Nc8 Kd8 Re6 Kd7 Nd6 Kd8 Nc4 Kc8 Nd6+ Kb8 Rh1 Nf7 Rh7 Nh6 Rh8 Bd1 Bb1 Ba4 Rf8 Bc6 Bc2 Bb7+
3r2kq/1N2R1rR/2Q5/p1n1pK1P/3q4/1n1PPRQ1/r1QrbB1N/b2N2R1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 c4 Nf6 cxd5 Ng8 Bh3 Rh6 fxg5 Na6 g6 Nb8 g5 Rh8 Bg4 hxg4 Kf2 a5 Kg3 e5 h4 c5 b4 f5 b6 c4 d6 c3 d7+ Ke7 d3 c2 b5 Qc7 d8N Qd6 g7 Na6 g6 Nf6 g8Q Nd7 b7 Ndc5 b8Q Qd4 b6 Nb3 b7 Nac5 Be3 c1Q Bf2 Qh6 g7 Ke8 e3 f4+ Kg2 f3+ Kg3 Bf5 Qc8 Bg6 b8R Bh5 Nc3 Ke7 Be1 f2 Nf3 f1R Nb7 Rf2 Qc2 Rd2 Nh2 Qh7 Qc7+ Kf6 Re8 Rd8 Bf2 Be7 Kg2 g3 Kh3 g2 Rag1 Be2 Nd1 Qh6 Rf1 g1R Qc6+ Bd6 Re7 Rh7 Qh8 Rg2 g8R+ Rhg7 h5 Qh7 Rhg1 Qh6 Rge8 Qh7 Qg8 Qh8 Qe4 Bc7 Rd7 Bb6 Ree7 R7g4 Rh7 Rg7 Re7 Ba7 Qgc4 Bb6 Qg4 Ba7 Qg3 Bb6 Re6+ Kf7 Qd5 Kg8 Re7+ Ne6 Qe4 Bc5 Qeg6 Ba3 Qe4 Bb2 Qec6 Ba1 Qb6 Nec5 Qc6 Bg4+ Kh4 Rf7 Kg5 Be2 Qb1 Rg7+ Kf5 Ra2 Qc2 Bf3 Be1 Rd2 Rf2 Be2 Rf3 Re8 Bf2 Rc8 Nd6 Rd8 Nb7
1N1Rq1Q1/4nQb1/2P3r1/4R1N1/1r2pRNn/PQn3nq/1pk1PB1N/1b2K3 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 g5 bxa5 c5 d4 Na6 dxc5 Nb8 Bh3 Bh6 fxg5 Ra6 g6 Bf8 g5 Ra8 Bg4 hxg4 h4 f5 c4 d5 a6 Kd7 h5 Kc6 a3 b5 a7 e5 h6 f4 h7 d4 g7 d3 g6 g3 Rh5 b4 Rh2 g2 Qb3 f3 Nd2 Na6 Ne4 Rb8 a8N Bf5 Nf6 Ne7 g8R Bg7 Rh5 Qe8 Ng4 Rb6 Rf8 Rg8 h8N Nc7 Bh6 Ncd5 Be3 Nc3 Nc7 Be4 Rf4 f2+ Kd2 f1N+ Ke1 Ng3 Nf7 Rb5 Nf3 g1N N7g5 Rb7 Na6 d2+ Kf2 d1Q Nfh2 Qd6 Ke1 Qe6 Rd1 Bb1 Bf2 e4 Rd8 Q6d7 Nh6 Qh3 N6g4 Bd4 g7 Rb5 Qb2 b3 Qa2 b2 Qb3 Rb4 Nb8+ Kc7 c6 Kb6 c5+ Ka5 Qf7 Ka4 c7 Be5 c8Q Bf6 Ne6 Kb3 c6 Kc2 Rhf5 Be5 Ng5 Bf6 Qce6 Be5 Ba7 Bf6 Re5 Nf3+ Kf2 Nh4 Ke1 Rf8 g8Q Bg7 Qh5 Rf5 Bf2 Rf6 Qhf7 Rg6 Qb3+
2rNkB2/1r1RPP2/1pQbQ3/Rpq1r2q/N5rQ/1PR3N1/2N5/3K1nnb b - - 0 1 illegal: No possible last move, all moves rejected
b4NN1/1R1Q3b/pP2b2k/K2Q1p2/PN1Rrb1B/1q1Q2q1/nr3Pn1/2QR4 b - - 0 2 legal: proof: d4 b5 g4 h5 gxh5 e5 dxe5 c6 c4 Na6 cxb5 Nb8 b4 Ne7 b6 Bb7 b5 Ng8 Bg2 Bc8 b7 Bc5 b6 Bd6 Be4 Bc5 Bd3 Bf8 Bb5 cxb5 Kd2 d5 Kc3 f5 h4 Kf7 a4 g5 e4 Kg7 e6 a6 e5 g4 e7 g3 Kb4 d4 e6 g2 Nf3 g1Q Nc3 d3 Ka5 d2 e8Q b4 e7 b3 Ng5 b2 Na2 b1B Qd7 Nh6 Nh7 Ng4 e8N+ Kh6 Nb4 Qg3 Nef6 Bd6 Nf8 Ne3 Qc2 d1B Qd3 Bg4 Rd1 Bf4 Ra2 Rh7 Rad2 Re7 Q7d5 Re4 Ng8+ Kg7 Ba3 Be6 Bc1 Bf3 h6+ Kf7 h5 Ba2 h7 Kg7 h8R Ng2 Rh6 Qc7 Rh8 Qc3 h6+ Kf7 h7 Kg7 Ba3 Qb3 Bc1 Nd7 b8Q Nc5 Qbd8 Rc8 Q8d6 Re8 Ba3 Re2 Q6c6 Ne4 Qc1 Nc3 Qd7+ Re7 Bb2 Bc6 Q3d5 Ba8 Rd4 Nb5 Bc3 Rb2 Bd2 Nc3 Be3 Bd6 Bg5 Be5 Bh4 Bf4 Nf6 Kh6 Rg8 Qg5 Rg7 Qg3 Rf7 Re8 Re7 Bg8 h8Q+ Bh7 Rf7 Re4 Qg8 Qf3 Qg3 Qg4 Qd3 Qg3 Qc5 Qa3 Qcb5 Be6 Qbd5 Na2 Ng8+ Kh5 Q7c6 Qc3 Rb7 Qb3 Nf6+ Kh6 Qcd6 Rd2 Qd7 Rb2 Ng8+
Nb6/4pB2/2N1p1bP/1RRbn1N1/r2R1Qrk/1P4nQ/R2qPQ2/Kb5q b - - 0 1 illegal: Other
1n1Q2rk/6b1/BQP1rRp1/nb3p1B/R2bPQ2/2pnR2K/2P1qR2/B3N3 b - - 0 1 illegal: No proof kernel
1nRNb1Qk/2K5/1P4pB/5r1b/1P3pPp/Q2Rn2R/1R1BQ1B1/rqbn4 b - - 0 1 illegal: No proof kernel
1nN3B1/p2pP2b/kBbn1Q2/PnQPpNBq/r7/1K5Q/2Q1R3/1Nrb4 b - - 0 2 illegal: No proof kernel
1R1NNb2/1BpNpnQ1/r1n3K1/3br1n1/R2PPQbP/1RQQ4/3q1p2/3k4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h6 g6 Qd6 g5 Ra6 g7 Qb4 g6 Qd6 Bb2 Ra8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 h4 Kc4 d4 b5 a4 f6 d6 b4 a6 g4 a7 g3 a5 g2 a6 b3 d7 b2 Kf5 Bb7 e4+ Kb4 Nd2 Kc3 Ngf3 g1N Ne5 b1B Ra4 Qe8 d8N Nc6 Nd7 Rh7 Nc4 Bc8 Nd6 Ba2 Rh3+ Nf3 Qd3+ Kb2 Be2 Qf7 Ne8 Kc1 Rg3 Ng5 Rh3 Rb8 a8R Bd5 a7 Rb5 Rb8 Rh6 a8Q Ra5 Qaa6 Rh5 Qab5 Ra6 Qa3+ Kd2 Rb3 Ke1 Qd3 Nh6+ Kf4 f5 g8Q Qe6 g7 Nhf7 Qh7 Qh6 g8Q Bc4 Bf1 Bd5 Qc3+ Kd1 Qgg7 Qd6+ Qe5 Qb4 Qhg7 Qa5 Kg3 f4+ Kg4 f3 Kf5 f2 Qf4 Qb4 Kg6 Qa5 Qd3+ Qd2 Bh3 Ne6 Qc3 Re5 Bf1 Neg5 Bc4 Ra7 Ba6 Ra8 Bb7 Ra6 Nc5 Bh3 Nd7 Bg4 Qd3 Bde6 Qb2 Bd5 Qbc3
3bn1Nk/b2qp3/1NrB3n/K1N2P1P/2pr4/pBR1PQ2/b2B1Q1Q/3B3n b - - 0 1 illegal: No proof kernel
k1b1b3/R1Rp4/BKQ2R1p/r2Q1N1n/P2Q4/2rPQ2P/BB2nn1p/r1q5 b - - 1 2 legal: proof: e4 b5 b4 f5 exf5 a5 bxa5 b4 c3 b3 Qg4 g6 Qh5 Bh6 Qd1 Be3 h3 g5 Na3 g4 Nc4 g3 Ne5 Bb6 Ng4 Bc5 Nh2 Bb4 cxb4 gxh2 Ke2 e5 Ke3 c5 f4 c4 g4 c3 a4 e4 Kd4 b2 Kc5 b1B g5 h6 b5 c2 g6 e3 a6 e2 g7 e1N a7 Ne7 g8B Ng2 b6 Ba6 b7 Bd3 f6 Bg6 f5 Nc8 f7+ Ke7 f8R Ba2 Nf3 Bb1 Nh4 Nc6 b8Q Be8 Qb4 Nd6 Ba2 Nd4 Bb2 Nf4 Ba6 Nh5 Rf6 Ne2 Qd4 Qc8+ Kb6 Kd8 d3 c1R Q1g1 Ne4 Qge3 Nf2 Rf1 Rc3 Rc1 Rf8 Qd5 Bc2 Rab1 Bb3 Qdd4 Bd5 Rc2 Ra3 Rc7 Bb7 Qd5 Rc3 Qed4 Rb8 a8Q Rg8 Qe3 Rg1 Qdd4 Be4+ Qb7 Ra8 Qc6 Re1 Rd6 Bd5 f6 Rec1 f7 Bc4 Bb7 Ra5 f8Q Ba6 Rf6 Rd1 Nf5 Re1 Rc1 Rg1 Rc2 Rd1 Qfd6 Ra1 Ba8 Bb7 Qcd5 Ba6 Rb7 Qc4 Q6e6 Kc8 Qec6+ Kd8 Ra7 Ra3 Qce6 Kc8 Bb7+ Kb8 Bc8 Qc3 Rc1 Qe1 Rcc7 Qc1 Qec6 Bb7 Nh4 Rc3 Nf5 Ba8 Ba6 Bb7 Bb5 Bc8 Rab7+ Ka8 Bbc4 Nh1 Ba6 Nf2 Ra7+
3q2n1/1pnr1p2/1rN1Q2P/1Q3PQK/bP5b/1p4qR/2NN3R/QRrBk3 b - - 0 2 illegal: No extended proof kernel
7k/1KP1r1Bb/1Qpbp2b/Q4RQ1/3r3P/2PRqp1R/6nN/3BBQnq b - - 0 1 illegal: No proof kernel
b4bBr/R2rN3/2P1k1R1/1qp5/1P1Q3p/BqRp2Q1/2P2RQ1/1qn1K1nB b - - 0 1 illegal: No possible last move
4Q1K1/1r4pP/1pk1BRP1/1RrnR3/N1n2RBb/QP5q/Q4p1b/Bq1b4 b - - 1 2 legal: proof: f4 d5 a4 e5 fxe5 h6 c4 b6 cxd5 Be6 g4 Na6 a5 Qc8 Nc3 Nb8 a6 Bd7 Ne4 Qb7 axb7 Bc8 g5 h5 Nf6+ Ke7 Ng4 hxg4 Ra3 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 c5 Kf4 f5 h4 a5 d4 g3 e4 c4 h5 g2 g6 c3 h6 a4 d6 c2 d5 a3 h7 a2 e6+ Kd8 Ke5 f4 e7+ Kd7 e8B+ Kd8 b3 f3 d7 Kc7 Ke6 f2 Kf7 Ra6 d8R Ra4 e5 Na6 b8R Ne7 e6 Rg4 Rd6 Ng8 e7 Nb4 Rh4 Bb7 Bd7 Nf6 e8Q Ba8 Bc4 Rf4 Bg4 Be7 Qe2 Nd7+ Rf6 Rf5 d6+ Kc6 Bb2 c1Q Be6 Nd5 Rh5 Qg5 Re1 Qh4 Ba1 Qh3 Qb2 Rg8 Ne2 g1B Qa3 Bh2 Nc3 Re5 Rf4 Bh4 Na4 Bb7 Rhf5 Ba6 Rf6 Be2 Ra8 Bd1 Ra5 Rg5 Re5 Rh8 Bd4 a1Q Rb5 Qb1 Ba1 Rf5 Qa2 Rh5 Qe7 Rb8 Qf8 Rb7 Kg8 Nc5 d7 Nd3 d8Q Nb2 Qfa3 Nc4 Qde7 Nc3 Ree4 Rc5 Re5 Nd5 Qe8+
2Rb3N/1q2k1q1/2Bn2p1/qQ3pr1/3r1P1R/B2PRB1p/2b1QQP1/4nKQ1 b - - 0 2 legal: proof: c4 e5 a4 d5 cxd5 b5 axb5 e4 Ra4 e3 Ra2 Ba3 Ra1 Bf8 h4 g6 d3 Qg5 h5 Bg4 h6 Qe5 Nd2 Qg7 hxg7 Kd7 Qb3 exd2+ Kd1 Ke8 Kc2 Bb4 Kb1 Bd6 Qd1 Bf8 Kc2 Bc8 f4 h5 e4 c5 b4 f5 d6 a5 b6 h4 b5 a4 b7 a3 e5 a2 e6 c4 d7+ Kd8 b6 c3 Nf3 Rh5 Ba3 Rg5 Ne5 Ra4 Qe2 Nf6 Kd1 Be7 g8Q+ Ne8 Qh8 Nc6 b8R Rb4 b7 Rd4 Qf2 c2+ Ke2 c1Q Qh5 Qc4 Re1 a1Q Qg4 Nd6 Nf7+ Kc7 Qh5 Qcc3 Nh8 Bd8 e7 Nb4 e8B Nc2 Ra8 Kc6 b8Q Qa5 Qb5+ Kc7 Qg1 d1Q+ Kf2 Bb7 Re3 Ne1 Be2 Bf3 Kf1 Qb3 Rh2 Bd5 Bf3 Qbb1 Qg4 Bb3 Qg3 Bc2 Q3f2 Rc4 Rh1 Qg7 Rh2 Rd4 Rb8 Qbb4 Ra8 Ne4 Rc8+ Kd6 Rh3 Ke7 Qe2 Kf6 Qgf2 Nd6 Rh1 Be7 d8Q Qb1 Qdd7 Bd8 Qa7 Qb3 Rh3 Qbf7 Bec6 Qb7 Rg3 h3 Rg4 Qbd7 Rh4 Qb7 Qac5 Qaa8 Re4 Rd5 Qg1 Qa5 Qcf2 Rd4 Qc4 Qab4 Re3 Qa5 Bfe4 Ke7 Qb5 Qf6 Bed5+ Qe5 Be4 Qg7 Bf3+
2B4b/Q1p3rb/r1p3Q1/NN1bPQ2/4nPbn/2P4k/B2pRB1B/3qNK2 b - - 0 1 illegal: No proof kernel
n2K2Q1/1N3Rn1/2b3pB/QpP1bBPN/1P2N1n1/p4BQ1/2r1B3/1bn3kq b - - 0 1 legal: proof: g4 b5 d4 e5 b4 c5 dxc5 h5 a4 e4 a5 a6 g5 e3 fxe3 Bd6 e4 Bf8 e5 Ra7 Ra3 Rb7 Rg3 Rb6 axb6 a5 Rg4 hxg4 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 f6 h4 d6 c4 g3 e6 Kg4 h5 g2 e4+ Kg3 e5 Kf2 b7 g6 c6 f5 e7 f4 e8B a4 c5 a3 c7 f3 h6 Bh3 c8B Bg7 h7 Bd7 e6 Na6 b8Q Nh6 e7 Be5 Bb2 Bc6+ Ke6 d5 Be2 d4 Nd2 d3 Qa4 Ng4 Qa5 Nc7+ Kf7 Qd4 Bf5 Qe4 Rh4 Na8 Nh3+ Ke1 Rh5 g1N Nf4 Kf2 Ke6 Rf8 h8Q Rf7 Rh3 Rh7 Rg3 Rh2 Qg8 Rg2 Nh5 Rh2 Nc4 d2 Nd6 d1N Nb7 Nde3 Bd7 Qb1 e8N Qa1 Be4 Nf5 Ned6 Ng7+ Ke7 Qf1 Qbc7 Qg2 Ba1 Qh1 Bdf5 Rg2 Kd8 Rh2 Bf1 Ne2 Bb2 Nc1 Be2 Rg2 Bd5 Kg1 Ne4 f2 Rf3 f1B Rf2 Bc3 Qg3 Be5 Bd4 Bf4 Bf6 Be5 Be7 Nd3 Bf8 Nc1 Bf3 Bd3 Bc4 Bb1 Bd3 Ne8 Bh6 Ng7 Rd2 Bd6 Bde2 Bf4 Rd7 Be5 Qf4 Rh2 Rf7 Rg2 Bf1 Rb2 B1e2 Rc2 Qg3+
2R4B/2r1Q3/R1b2Q2/Nkq1BB2/1rppBK2/b1PbRp1P/Pn4p1/1n4Q1 b - - 0 1 illegal: No proof kernel
4RR1n/1Nr1pR2/kr3Q2/1QQ1P3/2p2pPK/2Nn3b/1pP1Q1b1/1q1BNr2 b - - 0 2 legal: proof: g4 a5 b4 h5 bxa5 c5 f3 h4 d4 c4 Bb2 g5 Ba3 Bg7 Bd6 Bh6 f4 Bg7 fxg5 Bf6 Bg3 hxg3 Qd2 Be5 Qd3 Bd6 Qd1 Bc5 dxc5 Rh5 Qd6 Rh6 Qd1 Rh8 e4 d5 h4 Kd7 a4 Kc7 a6 f5 a5 b5 g6 d4 a7 Kb7 g7 b4 e5 b3 h5 b2 a6+ Kc7 h6 d3 c6 Kb6 c7 g2 Kf2 d2 Kg3 f4+ Kh4 Nd7 h7 Ndf6 Qe2 d1B Nc3 Be6 Nf3 g1R Ne1 Rb8 a8Q Qd6 a7 Ne4 Qd5 Nf2 a8Q Nd3 Qa3 Nh6 g8R Nf7 Re8 Rb7 Bg2 Rf1 Bf3 Bf5 Rh2 Be4 Qb3+ Qb4 Raa8 Ra7 c8N+ Ka6 Rb8 Rc7 Nd6 Qa4 Nb7 Qa1 Qd4 Qb1 Qc5 Rf8 Qbb4 Nh8 Rh3 Rf6 Qb3 Nf7 h8Q Rb6 Qf6 Nh8 Rf8 Bc6 Rbe8 Bd5 Kg5 Bc6 Rh7 Bd5 Rhf7 Bc6 Bh1 Bg2 Kh4 Bh3 Qbb5+ Ka7 Qe4 Bf3 Qe2 Be4 Bf3 Bd5 Qd2 Bc6 Bd1 Bcg2 Qd7 Ka6 Qe2 Qc1 Qdc6 Qb1 Q6b5+
Nbn1K3/Pp3N1R/1pkN2Q1/2Rrp2b/2pnR1n1/1Q4Pq/2P1N3/B1Q3r1 b - - 0 1 illegal: Other
3R1RK1/kp2b3/p2QN1Bp/1b5B/P3pqP1/1bBB4/rnP1QQ2/n1r4R b - - 0 1 legal: proof: e4 c5 d4 e5 h4 f5 b4 g5 hxg5 Nh6 bxc5 Qa5+ Nc3 Qb6 dxe5 Qc7 e6 Ng8 e5 Qd8 Ne4 fxe4 Ke2 d5 Ke3 a6 Kd4 h6 a4 Qd7 g4 Kd8 f4 Kc7 g6 Qc6 g7 Nd7 f5 Kb8 f6 Ra7 f7 Bd6 f8Q Qc7 e7 Ngf6 e8B Be7 g8R Ra8 c6 Nb6 e6 Nfd7 Qe2 Qf4 c7+ Ka7 Nh3 Nc4 Bd2 Nc5 Bg6 Nb2 Bc3 Bd7 c8Q Bb5 Qcd8 Rc8 Rd1 Rh7 Bg2 Rf7 Qd6 Rc6 Bh5 Rb6 Bf1 Bc4 Rd3 Bb3 Bg6 Rf5 Qf6 Rh5 Ng5 Rh2 Rd1 Rg2 Rf8 Rg1 Qf2 Rb5 Bd3 Rb6 Rd2 Rc1 Qh2 Qf3 Ke5 d4 Qe2 Qf2 Bc4 d3 Bb5 Qe3 Qff2 Qf3 Rdd1 d2 Bd3 Qe3 Kf5 Qg3 Bh5 Qf4+ Kg6 Rb5 Kh7 Rb4 Rdf1 d1B Rd8 Rb5 Kg8 Rb6 Qee3 Be2 Qef3 Bd5 Bg6 Nb3 Q3e3 Na1 Bh5 Bd1 Qee2 Bb3 Rfg1 Qf3 Qfe3 Bf8 Q2d2 Bd5 Bb5 Nc4 Rf1 Be2 Qec5 Bd3 Qe2 Qe3 Rf7 Qf4 e7 Be6 e8B Be7 Qcf2 Bd5 Nf3 Be6 Nd4 Bd5 Bbc6 Rb2 Bb5 Ra2 Ne6+ Qe3 Be1 Nb2 Bc3 Bb3 Rf8 Bdc4 Qfg3 Qf4 Beg6 Bd5 Qgf3 Bc6 Bd3 Bb5 Qff2+
b4R1K/5R1b/5p1P/1rNQ1Np1/2qbQ2n/p1NPBP2/5rkp/1QQnR3 b - - 0 1 illegal: No proof kernel
2B4q/3p2N1/4BN1p/r2Qp1r1/rQ1pbn1n/BQn5/1N2PPRP/2K1Q2k b - - 0 1 legal: proof: d4 c5 b4 f5 a4 b5 axb5 f4 d5 f3 d6 Qc7 gxf3 Qb6 f4 Qd8 f5 Nf6 Ra3 Ng8 Rd3 Bb7 Rd5 Bc8 Rd4 cxd4 c4 e6 c5 Qc7 c6 Qa5 c7 Bb7 c8B Be7 Qb3 Bd8 Qa4 Qb6 Qd1 Bc7 dxc7 Qc5 Qb3 Qe7 Qd1 Qd8 Kd2 Ke7 b6 Kf6 b5 Kg5 f6 Kh4 f7 a5 f8N g5 Qb3 g4 Kc2 g3 Nd2 h6 Ne4 e5 Ne6 g2 Nf3+ Kh3 Ng7 a4 Qd5 a3 Rg1 a2 Nf6 a1R Nd2 Na6 Ba3 Ne7 Nc4 Rg8 Nb2 Ng6 Kd2 Bc6 b7 Nf4 b8Q Nc5 b6 Ra4 b7 Ne4+ Kc2 Ra2 Kc1 Qf8 Qa5 Qe8 Qd2 Nc3 Qa8 Ra5 b8Q Be4 Qd5 Qf8 Qbb3 Qd8 Ngh5 Rg5 Ng7 Qg8 Ba6 Qf8 c8Q Qh8 Qcb8 Ra4 Bc8 Ra5 Bd6 R2a4 Q8b4 Kh4 Rh1 g1N Bh3 Nf3 Bf5 Ra7 Rg1 R7a5 Rg4+ Kh3 Be6 Nh4 Qb6 Rf5 Ba3 Rg5 Q6b4 Nh5 Rf4+ Kg2 Rg4+ Kh1 Rg2 Nf4 Qe1+
B1n2rb1/2p1Q3/BBP2pQ1/1R2p1pq/1Nq2R1b/2Q1PkB1/5P2/1R2K1nn b - - 0 3 legal: proof: b4 b5 g4 h5 gxh5 a5 a4 Ra7 axb5 Ra6 b6 Ra7 b5 Ra6 Nc3 Ra8 d4 e5 d5 Rh6 Na2 Re6 Nb4 axb4 dxe6 Nh6 Rb1 Nc6 Bg5 Bc5 Ra1 Qf6 Qc1 Ke7 Kd1 Bb7 Nf3 Rh8 Bg2 Ke8 Ng1 Bc8 Ke1 Qd8 Bf1 Nb8 Qd1 Bf8 Bc1 Ng8 c4 Ke7 h4 Kf6 c5 Kf5 e7 Ke4 e8B d5 b7 g5 b6 d4 h6 b3 h7 b2 h5 b1N h6 f6 Nh3 d3 Ra4+ Qd4 Bf4 Ne7 Bc6+ Nd5 Qc2 Nd7 b8R Qb4+ Qc3 Qc4 b7 Nd2 Bg3 Nb6 Nf4 Be6 Rb4 Rg8 h8Q Nc8 h7 Be7 Rh4 Rf8 Rb1 Bg8 Qg7 Bd6 h8Q Nf3+ Kd1 d2 Qh5 Ng1 Qe7 Kf5 Nd3 Nf4 Qhe8 Nh5 Rd4 Na7 Be4+ Kg4 Nb4 Nc8 Qg6 Qd5 Bh4 Ng3 Rc4 Nh1 Bg3 Nb6 Ra8 Qd3 b8B Nc8 Ra5 Qd4 Bb7 Qf4 c6 Bc5 Ba8 Be3 Rd4 Qe4 Rc4 Bf4 e3 Kf3 Ba7 Qd5 Bb6 Qd3 Bh2 Bg3 Rb5 Bh4 Rg4 Qc4 Bg3 Qf4 Rd5 Qe4 Ba6 Qf4 Rb5 Qc4 Rf4+ Kg2 Kc2 d1Q+ Kb2 Qh5 Kc1 Re8 Kd2 Rf8 Re4 Kf3 Ke1 Qd5 Rg4 Qc4 Rf4+
k2nR1B1/2BpQQ2/1N1Pp1P1/r3Q1K1/4PB1r/2nbQ2p/4Rb1p/4rr1R b - - 0 1 illegal: No proof kernel
6KB/1R1PpRQ1/nRQp1B2/r3n3/pb1kP2p/3P1B2/3rb3/bQ1QN1b1 b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 h4 d6 Nc3 Bh6 hxg5 f4 Nd5 Bd7 c4 Bf8 c5 Bc8 c6 Kf7 Ne3 Qd7 cxd7 fxe3 Ke2 Ke6 Kd3 Ke5 Kc4 a5 g4 h5 b4 c5 f4+ Ke6 b6 a4 b7 e2 b5 e1B b6 h4 d3 Ra7 g6 Ra8 g7 Bg3 g5 Nh6 g8Q+ Nf7 f5+ Ke5 g6 Bf4 f6 Be3 g7 Nc6 b8R Rh7 b7 Nd4 Bg2 Ra5 Rb1 Nc6 Bf3 Rh5 Rb6 Nb4 Bb2+ Bd4 Rh2 Rf5 Rf2 Na6 Qh7 Rf4 g8Q Bg7 Qh6 Rg4 Qhc1 Rg2 Rf1 Bh8 Qg7 Rd2 Qb1 Kf4 Kd5 Ke3 Ke6 c4 Rf2 Ne5 f7 c3 f8B c2 Rf1 c1B Bc3 Ng6 Kf7 Ne5+ Kg8 Ba3 Qb5 Bdc5 Qc6 Bab4 Rf2 Nc4 Bf6 Ne5 Bh5 Bd4 Nf3 Ba1 Ne1 Kd4 Qg2 Bg7 Bf3 Bh6 Rf1 Be3 B8g7 Bg1 Bh8 Nc5 Ra8 Na6 b8Q Bb7 Ra7 Ba8 Qg7 Bb7 Qcc1 Bc6 Rab7 Bd5+ Kf8 Bf7 Qc6 Bh5 Kg8 Re2 Qbc8 Bg4 Qcc2 Rd2 Qcb1 Bh5 Qc6 Bg4 Bg2 Bh5 Rf4 Be2 Bf3 Bf1 Bg5 Be2 Rf7 Rb2 Bf6 Ra2 Qg2 Rd2 Qg7
4nQ1b/k3N2N/p4RB1/1q5N/N4r2/1qRRP1rP/2rqNP1N/K4n1n b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 h4 c4 h3 b6 Qe7 gxh3 Nf6 h4 Qd8 h5 Ng8 b4 f6 b7 d6 b5 Na6 Bg5 Bd7 b6 Bb5 cxb5 fxg5 Qd2 Nb8 Qd5 Qd7 Qd1 Qd8 Kd2 Kd7 Kc2 c5 Kb2 a6 h3 d5 h6 c4 h7 c3+ Ka2 c2 e3 c1Q Na3 d4 Nf3 g4 Qb3 g5 Nh2 g3 Nb1 g4 Qa3 g2 Bd3 g1N Bg6 d3 Nc3 g3 Na4 Nc6 b8R d2 b7 Kc7 e6 d1Q e7 Qc5 Rc1 g2 Ka1 Qb3 Rc3 Nf3 Rd1 Nf6 Rdd3 Ncd4 b6+ Kc6 e8N Ne2 Qb4 Nd2 Ng7 Ng3 Nh5 Ne8 Qf4 Be7 Qf8 Nh1 Rc8+ Kb5 b8N Bf6 b7 Nf1 Rc6 g1R Nd7 Rc8 b8N Rg3 Re6 Rg8 Nc6 Bh8 Rf6 Rf3 Ne7 Rf4 Nb8 Rc7 Nbc6 Qd7 Nd4+ Ka5 Qg7 Qcb5 Ne2 Rc8 Qf8 Qd6 Nb2 Kb6 Na4+ Kb7 Nf5 Ka7 Ne7 Bg7 h8N Qdd5 Nf7 Bh8 Be4 Rg3 Ng5 Qd4 Bg6 Qd6 Rc1 Rc2 Nh7 Qdb4 Nd5 Qd2 Ne7 Rb2 Rcc6 Rc2 Rcc3
Kbq2BB1/4r2P/2P5/NPk2q1B/R1n3n1/2RR4/NR1Npb2/qbq4R b - - 0 1 legal: proof: g4 c5 a4 b5 axb5 a5 d4 h5 dxc5 f5 gxf5 Nf6 e4 Ng4 f4 Ne3 e5 Ng4 f6 Nh6 f5 Ng8 Qg4 hxg4 Ra3 Qb6 Ra4 Kd8 Ra1 Ra6 f7 Qc7 Kf2 Rf6 exf6 Qb6 Ke1 Kc7 Nf3 Kb7 Ng1 Qd8 Ra2 Kc7 Ra3 Rh4 Ra1 Rh8 Ke2 e5 Ke3 d5 h4 g5 b4 d4+ Ke4 a4 c4 a3 h5 g3 h6 g2 b6+ Kc6 b7 d3 b5+ Kd7 Kd5 d2 h7 d1Q+ Nd2 a2 Ne2 g1B Ba3 g4 Nc1 e4 Be2 g3 Bh5 g2 c6+ Kc7+ Bd6+ Kb6 c5+ Ka5 c7 Bh6 f8R Kb4 f7 e3 f6 Bg4 c8B Nc6 b8N Qf1 Be6 Qd7 Rc8 Ne5 f8R Bf5 f7 Bb1 Rfd8 Bf4 f8R Nh6 Bg8 Nc4 Rf6 Bg3 Rf2 Ng4 Re2 Qe6+ Kc6 Qff5 Kb7 B1f2 Ka8 g1Q Bf8 Be5 Rc7 Qc8 Rd3 Bh2 Ra7 Qf1 Raa3 Qd1 Rac3 Bf4 Ncb3 Qc1 c6+ Bd6 Na5 Kc5 Ree1 e2 Rd1 Qc2 Rc1 Qd1 R1c2 Qe1 Rb2 Qc1 Bgf7 Rg8 Bd5 Rg7 Be6 Qd7 Bg8 Re7 Na6+ Kb6 Rd5 Bb8 Nb4 Qc8 Rd6 Kc5 Rdd3 Bc2 Rab1 a1Q Na2 Qf7 Rb4 Qff5 R1b2 Bb1 Ra4
2n1n1R1/B2p1P1N/3BP3/4rb1n/RbKRrr2/1P3p2/R1RNB1q1/2N3k1 b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 f4 e5 f5 Qg5 Qd2 Qd8 Ra6 f6 Rxf6 Ke7 Rf7+ Ke8 Qf4 exf4 Kd2 a5 Kc3 g5 e4 g4 h4 a4 b6 g3 c6 g2 f6 a3 c7 a2 e5 a1N b3 f3 b7 Nc6 b8B Bb4+ Kc4 Ra6 e6 Be1 h6 Bd2 h5 Ra2 h7 Nce7 h6 Bb7 c8R Ra5 Rh4 Re5 Ba3 Be4 Ne2 g1R Ba7 Rg4 Bd6 Bb4 Ra8 Nc8 Nd2 Rf4 Nc1 Qe7 c3 Nc2 Be2 Nd4 Rg7 Kd8 f7 Nf5 Rg2 Nf6 Rhg4 Rg8 h8R Nh5 h7 Qg5 Rh4 Nfg7 Rf2 Rf8 Rg8 Ne8 h8N Qg2 Ng6 Bb1+ Bd4 Bf5 Ra4 Na7 Rg4 Kc8 Rh4 Kb7 Rg4 Nc8 Rh4 Be4 Ba7 Kc6 Rg4 Rf6 Rf4 Bf5 Rd4 Re4 Kd3 Kb5 c4+ Kc6 c5 Kb5 Rh8 Rg8 Nf8 Rg5 Nh7 Kc6 Rc4 Kd5 c6 Nc7 Rg8 Ne8 Bdc5 Ke5 c7 Kf4 Rd4 Kg3 Kc4 Kh2 Be7 Kg1 Bd6 Re5 Ra5 Rg4 Ra4 Ne7 c8R Rge4 Rc5 Nc8 Rca5 Bh3 Ra2 Rff4 R5a4 Bf5 Bd1 Nc7 Nb1 Bc3 Rfc2 Ne8 Be2 Bb4 Nd2
rn1rB2N/1Nk1n3/nb1P1nQ1/2q2P2/6p1/RbNKN2R/R3pPN1/4N3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 g4 h5 gxh5 a5 b4 Rh7 b6 Bb7 b5 Bc8 Ba3 Rh8 Bb4 axb4 Ke2 Kd7 h4 e5 d4 c5 h6 g5 b7 b3 h7 c4 d6 c3 h5 e4 b6 b2 h6 c2 d5 e3 Rh3 Ra3 Ra2 Rd3 Nc3 b1N Nf3 Na3 Ne1 Na6 b8R Ne7 b7 Qc7 Ra8 Nc4 b8N+ Kd8 d7 g4 Qd2 Qc5 Nc6+ Kc7 d8N Nd6 Ne5 Ne8 Nb7 Nb8 R8a3 Nf6 Nc4 Bd7 Qc1 Rg8 h8N Ba4 h7 Bb3 Ng6 Bh6 h8N Rd8 Nh4 Rd4 Ncd6 Ra4 Nhg2 Ra8 Kd3 Bf4 Be2 Bh6 Bd1 e2 Nc4 Be3 Qd2 Bd4 Qg5 Be3 Qh6 Bd4 Qg6 c1N+ Kd2 Nd3 Nce3 Nb4 Bc2 Bc4 Ba4 Bb3 Be8 N4a6 Kd3 Qa5 Rf3 Bb6 Rh3 Qc5 d6+
3b1n2/P4pN1/1Bb3RP/k3RpnK/1r1b4/2RQ1Rb1/rR1RP3/1N2q1N1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e6 cxd5 a4 f5 a3 f6 Rh7 Bh3 Qe7 fxe7 Rh8 Bf5 exf5 bxa3 Kd7 a4 Kd6 a5 Kd7 Kf2 c5 Kg3 Kc7 Kh4 b5 e8N+ Kb7 a4 Ka6 d4 c4 d6 g6 d5 c3 d7 b4 d8R b3 h6 g5+ Kh5 g4 h4 b2 h7 g3 d6 c2 d7 g2 Ra2 Bh6 Be3 c1B Ng7 Bb7 Rc8 Bg5 d8R Nd7 Rh3 Nh6 Bc5 Bcf4 Rf3 Ne5 Rd2 Ng8 Qb3 Bd8 Qd3+ Nc4 Rc7 Bg3 Re7 Rb8 Re5 Ne7 Ra3 Re8 h8R Ng6 Rc3 Bc6 Rh6 Nf8 Rd6 Rb4 Rg6 Kb7 a6+ Kc7 a5 Nd6 a7 Ne4 a8R Ng5 Na3 b1Q a6 Qe1 Rb8 Re6 a7 Rf6 Nh3 g1B Nb1 Bd4 Ng1 Re6 Rd5 Re4 Re5 Ra4 Rbb2 Ra2 Bb4 Kb6 Bc5+ Ka5 Kh6 Ngh7 h5 Nf6 Kg5 Rf4 h6 N6h7+ Kh5 Ng5 Rbb3 Bdf2 Rbb2 Rb4 Re4 Be3 Re5 Bd4 Bb6+
2rk4/1n2bq2/1N1NB2p/PKRr1PBr/rp3RN1/3BR1PN/3r1N2/6n1 b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 Kd7 exf5 Ke8 f6 Bg4 Qf3 Be6 Qd1 Bc8 f4 Bd7 f5 Bb5 h3 Bc4 Qf3 Be2 Qf4 Bg4 hxg4 gxf4 Ke2 e5 Kd3 c5 Kc4 b6 d4 h6 a4 e4 a6 f3 d6 e3 a5 e2 g3 e1R a7 f2 d7+ Kf7 d5 Rd1 g5 Qc7 d8N+ Ke8 d6 Qc8 g6 Ne7 g7 Nd5 g8B Qc7 Nc6 Na6 Ra3 Qf7 Nh3 Nf4+ Kb5 c4 Ne5 c3 d7+ Kd8 Bd3 f1R Nd2 c2 Ng4 Ne2 Ne4 Rc8 a8N Be7 Bg5 c1R Nef2 Nc5 Rc3 Rfe1 Rf1 Ra1 Rc1 Nb7 Rc5 Qh7 Bgc4 Ng1 f7 Rd2 Be6 Re8 f8R Ra4 Rg8 Qf7 Rg7 Re5 Re1 Rd5 Re4 Rg8 Rf4 Qf8 Rh7 Bf6 Re7 Qf7 Ka6 b5 Nb6 b4 Kb5 Rd6 Bec4 Rd4 Re3 Be7 Be6 Rd5 Bh4 Rg6 Bf1 Rg5 Bd3 Rh5 Bg5 Bf6 Ka6 Ke7 Kb5 Qh7 d8N Ke8 Nd1 Be7 Nf7 Qg6 Nd6+ Kd8 Ndf2 Qf6 Rfe4 Qf7 Rf4
3Rb1b1/2BP4/2BNPbN1/1pk1q1b1/n1PN1BNN/5p2/3R1rn1/2Kn3R b - - 0 1 legal: proof: g4 b5 b4 c5 e4 h5 gxh5 d5 f3 e5 exd5 e4 f4 a5 bxa5 Ra7 Qe2 Rb7 Qc4 Re7 Qb4 Re5 fxe5 cxb4 Kd1 Ke7 c4 g5 h4 f5 a4 e3 d4 g4 d6+ Ke6 a6 f4 a7 g3 a8R b3 a5 g2 d5+ Kd7 a6 b2 h6 Nf6 e6+ Ke8 h7 Qe7 a7 Qf7 h5 Na6 d7+ Ke7 d8B+ Kd6 h6 Nc5 Bc7+ Ke7 Ra2 Qg7 Nc3 b1B Nce2 Bd7 Rd8 Nfe4 a8N Be8 Rd2 Qe5 Nf3 g1B Nh4 Na4 Nd4 Bg7 Nb6 Bf6 Nd7 Rf8 h8N Rf7 h7 e2+ Ke1 Bc2 Bg2 Be3 Bf3 Rf8 Nf7 Nec3 h8N Nd1 Nd6 Bh7 Bg2 Bg8 Be4 Bg5 Nf6 Rf7 Ng4 Rf8 Nb3 Bd4 Bg2 Ba1 Nd4 Rf7 Rd3 Rf6 Kd2 e1N Be4 Ng2 Kc2 f3 Bf4 Rh6 Kc1 Nge3 Ng2 Rh2 Nh4 Rf2 Rd2 Bc3 Ndf7 Ng2 d6+ Kf8 d7 Ke7 Bc6 Ba1 Ba5 Bc3 Nfh6 Kd6 N8g6 Ba1 Bc7+ Kc5 N6f5 Qe4 Ne2 Baf6 Nd6 Qe5 Nd4
r5r1/7B/6BK/1nqP1pN1/Pp1RB3/r2R1q1b/n3PB1k/1Nr1N1RB b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 e5 bxa5 g5 f4 Ra7 fxe5 Ra8 g4 Qd6 h4 Qc6 Qa4 Na6 Qf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Qd6 Bb2 Nb8 Bc1 Qd8 Kf2 Ke7 Kf3 b5 a4 c5 d4 h5 d6+ Ke6 a6 Kf5 a7 f6 g7 h4 e6 c4 g6 c3 d7 b4 e7 c2 e8B h3 Bg2 h2 Be3 c1R Bf2 Na6 Ra3 Qa5 d8R Ne7 g8B Nd5 g7 Qc5 Rd3 Nac7 Bg6+ Kg5 Rd6 Nb5 B8h7 Bh3 g8N f5 Nf6 Rhg8 Rd8 Ndc3 Ne4+ Kh6 Rd6 Na2 Ng5 Rc3 Rd8 Ra3 Rd6 Rae8 a8B Ref8 Bh4 Rd8 Be4 Ra8 Kf2 f3 Ke3 f2 Kf4 f1Q+ N1f3 Qf2 Rg1 h1R Rd5 Qe1 Bf2 Qec3 Rc1 Re1 Bh1 Rd1 Ne1 Qb3 Rc4 Rc1 Rd7 Qc3 d5 Qb3 Rg7 Qc3 Bf7 Qb3 Rg6+ Kh5 Rcd4 Qbc3 Ke5 Kg4 Kf6 Qb3 Rg7 Qbc3 Kg6 Qb3 Kh6 Kf4 Be3+ Kg3 Bf2+ Kh2 Bfg6 Qbc3 Rg3 Qf3 Rg1 Qa7 Rc7 Qb6 Rc3 Qc5 Rcd3
BRN2b2/2R2n2/2K5/1PP1pk1p/b2BnNbq/N4b2/N3b1NP/4Bq1R b - - 0 1 legal: proof: e4 a5 a4 c5 d4 b5 dxc5 d5 axb5 g5 Qf3 d4 Qf5 Ra7 Qf4 Rd7 f3 Rd5 exd5 h5 Qc7 e6 f4 Rh6 f5 Rg6 Qg3 e5 Qf4 Re6 fxe6 gxf4 Kd2 Ke7 Kd3 Kf6 Ke4 d3 b4 d2 c4 d1B g4 a4 b6 a3 d6 a2 Kd5 f3 c6 f2 c7 Qe7 c5 Qe8 e7 Qd7 e8N+ Kg6 b7 f5 b5 f4 g5 f3 Ng7 Ba4 Bb2 Qf7+ Ne6 Qf6 d7 Kf5 d8B Qe7 g6 Qh4 g7 Qg3 Nf4 Bd1 Bg2 f1B Bh4 f2 Nge2 Qh3 Nec3 Bd3 Na3 f1B Be1 Nh6 g8N B3e2 Nf6 Ba4 Ng4 Nd7 b8R Nf7 Kc6 Qh4 Rd1 a1Q Na2 Nf6 Bd4 Be6 c8N Ne4 Bf3 Bg2 Ne3+ Kf6 Rd3 Bg4 Rd2 B2h3 Neg2 Kf5 Bg3 Qf1 Be1 Ng3 Bd5 Ne4 Rd1 Bef3 Rd3 Be2 Rg3 Bgf3 Rg7 Bhg4 Rh7 Nfg5 Rc7 Nf7 Kd7 Qf6 Ba8 Qh4 Kc6
n1b1RN2/4NR2/2N1B1rN/2Rp1NPP/2n1Pk2/2qq3p/1p5K/1rQ1Nb2 b - - 0 1 illegal: No proof kernel
1RN2R2/2bRb1Br/4PB2/Pn3B2/6K1/2rpRP2/pR2pq2/NbrNk3 b - - 0 1 illegal: No proof kernel
Q1BB1KN1/N5N1/1pP1pp2/2r5/4n3/NpBPk1N1/Pq3bNR/1r1n2b1 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 h5 gxh5 d5 bxa5 c5 exd5 g4 f3 g3 Na3 Kd7 Rb1 Ke8 Rb4 Bg4 fxg4 cxb4 Ke2 Kd7 Ke3 Kd6 Kd4 g2 h4 b6 c4 b3 d3 Qe8 g5 Nf6 h6 Rg8 h5 Rg6 a6 Ne4 c5+ Kc7 Ke5 Ng3 h7 Qd8 h8B Bh6 d6+ Kc6 a7 Na6 d7 Rg7 g6 Nb4 Qf3+ Ne4 Ne2 g1B Ng3 Qc8 d8N+ Kd7 Bg5 Na6 Ne6 Kc6 Bh3 Rh7 g7 Nc7 g8N Qf8 Rh2 Nb5 Ng7 Rd8 a8N Be3 Nc7 Nc3 Bc8 e6 Ncb5 Bf2 Be7 Bhe3 h6 Nd1 Na7+ Kc7 c6 Bg1 Qf4 Bef2 Qd2 Rd4 Qa5 Rc4 Bf6 Qb4 Qa4 Qd2 Bh4 Nd6 Kf6 Qb2+ Ke7 Rc5 Kf8 Ne4 Bd8+ Kd6 Qa6 Ke5 Qb7 Kd4 Qa8 Qd2 Ne8+ Ke3 Bc3 Rg7 h7 f6 h8N Rgg5 Ng7 Qb2 Ng6 Rh5 Nf4 Rhe5 Bb4 Rc1 Be1 Rec5 Bc3 Rb1 Ng2+
r4bR1/BBB1Rn1p/2B1K2P/N1PP4/q1b4b/2k2Rn1/1rnr4/N1N3Bq b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Bc8 fxg5 c5 b4 Nh6 b6 Ba6 b5 Ng8 Qg4 Bc8 Qb4 cxb4 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 f5 h4 a5 g4 a4 c4 b3 d4+ Kb4 c5 b2 h5 a3 b7 f4 h6 a2 b6 f3 d6 e6 g6 f2 g7 Qh4 g5 Be7 g6 Qh3 d7 Qg4 d8N Nf6 g8B Qh4 g7 Na6 b8B Ne4 b7 Nd6 Bb5 f1N Nd2 b1R Rh3 Ng3 Bc7 Bf8 b8B Kc3 Nb3 Nb4 Nc6 Nc2 Ba7 Rb2 Nca5 Ba6 Bc6 Bc4 Be3 Qg4 Rb1 a1Q Re1 Nf7+ Kf6 Qb1 Na1 e5 Bb7 e4 Ne2+ Kd3 Bf2 e3 Nc1+ Kc3 Bg1 e2 Bc6 Qe4 Bb7 Qa2 d5 Qh1 Ke6 Qa4 Bc6 Rab8 Bb7 Ra2 Bc6 Rbb2 Bb7 Nd6 Bf7 Rg8 Be8 Nf7 Bec6 Rh8 Rd1 e1B g8R Bd2 Rg4 Bg5 Re1 Bh4 Rg5 Be7 Re4 Ra8 Rg8 Bd6 Kd7 Bf8 Re7 Ne1 Ke6 Rd2 Rh2 Rab2 Rf2 Nc2 Rf3+
1n1nR3/1b4BP/1rqBB3/1QNb2pr/qkPKB1P1/2r4B/R4R2/2B2qb1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 c5 fxe5 c4 Nc3 h4 Ne4 c3 Ng3 hxg3 dxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 Ke7 Kd3 a5 h4 g5 b4 f5 c4 d5 e4 d4 b6 g2 h5 f4 h6 f3 h7 f2 b5 a4 e6 a3 c6 Kd6 e5+ Kc5 e7 a2 e8B Bg7 b7 Na6 b8B Bf8 c7 Bb7 c8B Qd7 e6 Ne7 b6 Kb4 Nh3 g1R Rh2 Rh1 Bg6 Qc6 Be5 Nb8 Nf4 Ra5 Bh3 f1Q+ Qe2 Rd5 Ke4 d3 Rf2 d2 Bg7 d1B Qd3 Re5+ Kd4 Re3 Be4 Bf3 Qd1 Rc3 Nd3+ Ka5 Nc5 Kb4 Qd2 Rh2 Qf4 Rh1 Qf6 Rh2 Bg2 Rh5 Bh3 Bg2 Bg6 Bd5 Be4 Ng6 e7 Nf4 e8R Ne6+ Ke5 Nd8 Be6 Bd6+ Kd4 Bh2 Qg6 Bg1 Qf6 Bc8 b7 Rf8 Qg6 Rf6 Qh6 Na6 b8B Bb7 Bd6 Nb8 Qg6 Ka5 Rb1 a1Q Rb2 Qaa4 Ra2 Kb4 Qf7 Ba6 Qa7 Bb7 Qa6 Rb3 Bf7 Qc8 Be5 Rb6 Be6 Qcc6 Bd6 Rc3 Qb5+
k1B1q3/1NK1N1b1/b1RB3q/1N1PnN1q/B3np1b/3RN3/4PP1r/rr2R3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 Qd7 a4 Qd6 axb5 Qd8 d4 g5 hxg5 e5 d6 Bh6 d5 Bf8 Qd4 exd4 Kd2 Kd7 Kd3 a5 Ke4 h5 Ke5 c5 g4 f5 b4 h4 b6 c4 b7 c3 b5 a4 b6 h3 g6 a3 g7 h2 g5 f4 g6 a2 Nd2 d3 Ngf3 c2 Nc4 d2 Bh3+ Ke8 d7+ Ke7 Nh4 d1R Ne3 Rd4 Re1 h1Q Ba3+ Rb4 Rad1 c1Q Rd3 Na6 b8R Nh6 g8B Qe8 d8N Nc5 b7 Rb1 Nhf5+ Kd7+ Be6+ Kc7 g7 Be7 g8N Bh4 Nge7 Ne4 Bd7 Qc6 Bd6+ Kb6 Bg4 Ka7 Bh3 Qb6 Bc6 Qf3 Ba4 Qfh5 Bg4 Be6 Rc8 a1B+ Rcc3 Bc8 b8N Ba6 Nb7 Nf7+ Ke6 Rh7 Rc6 Bg7 Bh3 Ne5 Bg4 Bb5 Na6 Rh8 Nc7 Kb8 Bd1 Raa1 Ba4 Ba6 Nb5+ Ka8 Bb8 Ng5+ Kd6 Rh7 Nh6 Rh8 Bc8 Rh7 Nhf5 Ne4+ Ke6 Rh8 Bd6 Qf3 Ba3 Bhf6 Rd6 Rh2 Bb4 Qfh5 Bc5 Qeg6 Bb4 Qd8 Rc6 Qde8 Bd6 Qgh6 Ba3 Ng5+ Kd6 Ne4+ Kc7 Bh4 Bd6
2k1nn2/2pRR1r1/R2qbqR1/3n4/1QKR2bB/1P1NBB2/2P1P1r1/b3r2R b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 g4 h6 g6 Ba3 Nc3 Bc5 Ne4 Bf8 g5 h5 Nf2 Ba6 Ng4 hxg4 Bh3 Bb7 Bf1 Bc8 Kd2 d5 Kd3 Kd7 h4 a5 g7 f5 h5 f4 h6 d4 b3 a4 b6 g3 g6 g2 b7 f3 h7 f2 Ra2 a3 Bg5 Nf6 g8R Bg7 Be3 Ne8 Nh3 g1R Bg2 f1B Kc4 d3 Nf2 d2 Qe1 d1N Qb4 Nc3 Bf3 Bh3 Nd3 Bg4 Ra1 Bf6 g7 a2 Rf8 Ra3 g8R Nd5 Rg6 Rg8 h8B Rg2 Rf7+ Qe7 Rad1 a1Q e6+ Kd8 Rd2 Nd7 b8R Rg7 Ra8 Nf8 Ra6 Qd6 e7+ Kd7 Rdd1 Qb2 Rd2 Ra1 Rdd1 Bc3 Rf4 Rc1 Rd4 Ra1 Rd2 Re1 Rd1 Qa3 Rd2 Ba1 Rd1 Qb2 Rd2 Nef6 e8R Be6 Rd1 Bg4 Re5 Ne8 Re7+ Kd8 Rd2 Bce6 Rd1 Kc8 Rd2 Rf7 Bf6 Rh7 Bh4 Rg7 Re4 Qf6 Rd7 Bg8 Ree7 Bf7 Nc5 Bg8 Rd4 B8e6 Nd3
K1N4n/1R6/RPpbr3/1kPbPNr1/b1Rq3B/N2Bb1q1/B2nq3/B6B b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Qd4 Rh7 fxg5 Qe7 g6 Rh8 g5 Qd8 Qg4 hxg4 Kf2 f5 Ke3 d5 Kd4 Kd7 h4 a5 e4 c6 c4 a4 b4 f4 b6 f3 e6+ Kd6 h5 f2 h6 g3 g7 a3 g6 a2 b7 g2 e7 Ra7 e8N+ Kd7 h7 Nh6 g8B Nf7 g7 Qg5 b5 Qg3 Na3 Bd6 Bd3 f1Q Nf3 Ra5 Rh4 Na6 b8R Qe2 Bg5 Nc5 Rb7+ Ke6 b6 g1B+ Kc3 d4+ Kb4 Nb3+ c5 Ra7 Rg4 Be3 Nh4 Nd2 Nf5 Ke5 Be7 Be6 Bh4 Bd5 Rf4 Ra8 Rg4 Rd8 Ka5 Rd7 Ka6 Re7 Ka7 Re6 Rf1 a1Q Ka8 Qc3 Ra1 Qb2 Nc7 Qb4 Ncb5 Qb2 Na7 Qc3 Bc4 d3 Nc8 Qd4 Ba6 Nb1 Bb5 d2 Bd3 d1B Ra2 Ba4 Rf4 Nd8 Bf7 Rf8 g8B Nd2 Bh5 Rfe8 Bf3 Nf7 Bh1 Rg6 h8B+ Ke6 Be5 Rg5 Bh7 Nh8 Bc4 Qdd3 Ba1 Qd4 Bg8+ Ke5 Bd3 Re6 Nb1 Bab3 Ra6 Ba4 Na3 Qb2 Nh6 Kd4 Nf5+ Kc3 Bf7 Kb4 e5+ Qd4 Rf1 Rh6 Rc1 Re6 Rc4+ Kb3 Bf3 Be4 Nce7 Rf6 Rc1+ Kb4 Ba2 Bd5 Nc8 Re6 Bh1 Re7 Nb1 Re6 Rc4+ Kb5 Na3+
3bR3/n2K1p1p/1B3bNr/N1R2P1B/1q2rP2/Bk5P/2Rn2N1/1NrNb2q b - - 0 2 legal: proof: c4 e5 a4 d5 cxd5 b5 axb5 Nc6 d6 Nb8 d4 Qf6 f4 Qd8 d5 Bg4 Qd4 Bf3 gxf3 exd4 Kd2 Kd7 Kd3 c5 Kc4 a5 b4 g5 e4 a4 h3 a3 f5 g4 b6 g3 Kb5 c4 b7 a2 e5 g2 e6+ Ke8 d7+ Ke7 d6+ Kf6 e7 Ke5 e8R+ Kd5 Rh2 c3 Be2 d3 Ba3 Qf6 d8B c2 d7 c1R Bb6 d2 d8N d1Q Ne6 Nc6 b8N Qc3 Nd7 Qcd2 Ne5 Nf6 Ng6 Q1e1 Bd1 Ne4 Ne2 g1B Rg2 Bf2 Nec3+ Kd6 Nef4 Ra6 Be2 Be7 Nd1 Qh1 Rh2 Bfh4 Ng2 Kd5 f4 Bd8 Bh5 Bg3 Ne1 Qc3 Rc2 Nd2 Ng2 Qb2 Rc5+ Kd4 Rc2+ Kd3 Kc5 Be1 Kd6 Na7 b5 Qb4+ Kd7 Rg8 Bd4 Re6 b6 Re4 b7 Rg7 b8N Rg8 Rb2 Kc4 Rc2+ Kb3 Nc6 Rg7 Bb6 Rg8 Nge5 Rg6 Rc5 Rh6 Ng6 Nc4 Nbc3 Nd2 Na5+ Kc2 Rb1 a1B Rb3 Bb2 Nb1+ Bc3 Rd5 Bcf6 Rc5+ Qc4 Re3 Qc3 Re2 Qc4 Nb7 Kb3 Rf2 Qb4 Re2 Nf3 Rec2 Nd2 Na5+
R1R2R2/KpqN2bp/1Q3Pk1/4R2R/2Br1P1P/1rB1n1b1/b2qnb2/2B4R b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 c4 d5 cxd5 g4 Na3 Bd7 Nc4 Be6 Ne5 Bd7 exf5 Be6 f4 Bc8 Nef3 gxf3 Kf2 Kf7 Ke3 c5 d4 e5 a4 f2 g4 e4 h4 c4 f6 c3 d6 c2 a6 Qc7 a5 Qc4 g5 Qc5 g6+ Ke6 a7 Kf5 g7 Bd7 a6 Qd5 Nf3 Qb5 d5 Qb4 Ne5 Nh6 g8R Bg7 Qd4 Be6 d7 Nc6 d6 Ba2 Rc8 Rd8 Bc4 f1Q Qb6 Nd4 Rc5 Rac8 a8R Ne2 a7 Qg2 Rb8 Qa5 a8R Rc6 Rc8 Qh2 Qb1 Qc7 Qb6 Qg2 Rb1 Qh2 Rbb5 Ng4+ Kd2 e3+ Kd3 Qf2 Rd5 Rc5 Rba5 Rb5 Rc5 Nc3 Kd4 Ne2+ Kd5 Rb3 Rab5 Rf8 d8R Rh8 Nd7 Kg6 Re8 Rg8 Re5 Rd8 Rc6 Qe1 Kc5 Qd2 Rh5 Ng3 Rba5 e2 Re5 e1B Rcb8 Rg8 Rf8 Ne2 Rh5 Bg3 Rb5 Qb8 Rcc8 Rh8 Qa5 Rg8 Kb6 Qc7+ Ka7 Ne3 Qb6 Rh8 Rbe5 Rg8 Bb2 c1B Bc3 Ba3 Bb2 Bb4 Bc1 Ba5 Nb8 Bc3 d7 Bd4 d8B Rh8 Nd7 Rg8 Be7 Rh8 Rf7 Rd8 Bb4 Bc5 Rf8 Bd4 Bc3 Bc5 Nb8 Rd4 Nd7 Nf5 Ba5 Rd6 Bg8 Bcf2 Be6 Ne3 Bc4 Rd4 Bc3
K2R3n/4p1PR/k1Q1PN2/1N2Rn2/rp4B1/p2bbq2/2N1P1NN/rn2rN2 b - - 0 1 illegal: No proof kernel
1N6/1BpqN1R1/1QPp3N/p4b1r/nbR1q1N1/Pr2n2N/2RP4/KN2n2k b - - 2 3 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 b6 b4 Rh6 Bb2 Rh8 Bc3 Ra7 bxa5 Ra8 a6 Nc6 Bb4 Nb8 Ba5 bxa5 c4 Kf7 h4 Kf6 f4 g5 h6 e5 h5 d6 c5 g4 c6 e4 a3 g3 h7 e3 a7 e2 h6 g2 Rh4 Qd7 Ra2 Be7 Nh3 g1N Rc2 Kf7 f6 Ke6 f5+ Ke5 f7 Nf6 f8N Bd8 Ng6+ Kd5 Rhc4 Bb7 Ne5 Ne8 f6 Bc8 f7 Bg5 f8N Na6 Ng4 Rb8 a8R Bf6 Qc1 Rb7 Qb2 Bc3 Qb6 Ng7 Rb8 Nc5 Ra8 Qf5 Nd7 Na4 Nb8 Qf7 Rb2 Bf5 Rc2 Rd8 h8N Qd7 h7 Bb4 Nf7 Rh8 Nfh6 Nf3+ Kf2 Ne1 Ke3 Rc8 h8N Rg8 Ng6 Rh8 Ng8 Rh5 N8h6 Nd3 Nh8 e1Q+ Be2 Qh1 Ng6 Ne1 Bd3 Qg2 Bf1 Qh1 Ke2 Qe4+ Kd1 Ne6 Kc1 Nf4 Bd3 Nfg2 Be2 Ne3 Bd3 Nc5 Kb2 Na4+ Ka1 Nb2 Na6 Na4 Rg8 Rb8 Rg7 Rb7 Ngf2 Rb8 Ne7+ Ke5 Ng1 Kf4 Nfg4 Kg3 Nh3 Kg2 Be2 Rb7 Nb8 Kh1 R4c3 Nf1 Ba6 Ne3 Rc4 Bc3+ Qb2 Rb3 Bb7 Bb4 Qd4 Qd3 Qc5 Qe4 Qb6
1b1RNn1k/4rbB1/Rb1Bpp1P/3BR3/P1BqB3/1K2PN2/N2b2p1/3rn3 b - - 0 1 illegal: No possible last move
R3Q1N1/1BP3pb/qB1p3b/R6B/2P4B/n1pnpn2/r2PK1kr/1BBR4 b - - 0 1 illegal: No proof kernel
2RRK3/3n4/1p3r1N/1N3B2/k1p1Qpn1/NPqR1Nb1/p1Pn1P2/qNrN4 b - - 0 3 legal: proof: d4 d5 g4 e5 dxe5 h5 gxh5 d4 a4 d3 a5 b6 a6 Bb7 axb7 Kd7 Bh3+ Ke8 Bg2 d2+ Kf1 dxc1Q Ke1 Ba3 Bf1 Bf8 Nc3 c5 h4 g5 e4 f5 Ke2 a5 Kf3 c4 e6 f4 Kg4 a4 Kf5 g4 Kg6 a3 e7 a2 h6 g3 e5 g2 h7 Qc8 h5 Nc6 b8N Nf6 h6 Nb4 Qe1 Qd2 Nge2 g1N Nc6 Kd7 Kf7 Qa6 e8N Be7 e6+ Kc8 Ne5 Kb7 Nd6+ Ka7 Bh3 Rac8 Bf5 Ne4 Rd1 Qa3 Rh3 Bh4 e7 Ka6 e8N Ka5 Nc7 Rhd8 h8R Nf6 h7 Nbd5 Rf8 Re8 h8N Qc1 Re3 Qa1 Nb1+ Nb4 Nec3 Na6 Rh3 Red8 Qe4 Nc5 Ke7 Ra8 Nhf7 Nf3 Nh6 Ng4+ Kf7 Kb4 Re8 Ra7 Kf8 Rd7 Rc8 Rf7+ Ke8 Rf6 N7d5+ Ka5 Ne3 Rd7 Rd5 Qb4 Na3 Qb3 Ncb1 Ka4 Ndb5 Qc3 Rd1 Rd2 Rg3 Re2 Rd4 Re1 Rdd8 Rc1 Nd1 Nd2 Rgd3 Bg3 Nf3 Nd7 b3+
1NqnRKN1/2P1pnR1/2B1b3/Np2rp2/1Br2n2/1BN2P1N/1Pk1q1p1/1R6 b - - 0 1 illegal: No proof kernel
1r1k2r1/4bq2/7R/7R/RP1N1p1P/1n3Qr1/P1bB1BR1/1bB1KRnB b - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 h5 g4 a4 gxh5 Bd7 Na3 Bg4 Nb1 Bc8 Bg2 b5 Bf1 a3 bxa3 Bb4 Qc2 Bd6 Qd1 Bf8 Qa4 c5 Qd1 b4 axb4 Be6 Qb3 Bg4 Qd1 Bc8 Na3 c4 Nb5 Be7 Nd4 Bf8 Nb3 cxb3 d4 f5 e4 g5 d6 b2 d7+ Ke7 d5 b1B d6+ Ke6 h6 g4 h7 g3 Bg2 Be7 Qf3 Bf6 Ne2 Be7 Nd4+ Kf7 e6+ Kf6 e5+ Kg6 h4 Bc2 Rh2 Na6 Bh1 Nc5 Rg2 Qf8 d8B Nf6 d7 Qf7 Bb6 Rb8 d8B Rg8 h8R Nd5 Rh5 Nc3 Ba7 Nb3 Bc5 Bg5 e7 Ne2 e8R Ng1 e6 Be7 Bc7 Kf6 B7f4 Ba6 Bfd2 f4 Rc8 Bc4 Rc6 B4d3 Ra6 Bb1 Ra4 Bdc2 Ba7 Bd6 Bb6 Ke7 Rh6 Ke8 e7 Kd7 e8R Be7 Ba7 Kc7 Rc8+ Kd7 Rc5 Kd8 Rf2 g2 Rch5 Nh3 Bc5 g1R+ Rf1 R1g5 Rf2 Ng1 Rg2 Rb7 Nb5 Rg4 Bf2 Rb8 Nd4 Rg3 Kf1 Bf5 Ba3 Bbe4 Rd1 Bb1 Bac1 Nh3 Ke2 Bfc2 Rf1 Ng1+ Ke1
2N3Nn/N2P2bp/4P1r1/3kn3/2Q1RqBq/6N1/N1Pn1rQR/K1n1N3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qe7 c4 Qf6 c5 Qd8 e4 a5 e6 d6 e5 Qd7 e7 Ba6 bxa6 Qd8 Bb2 Kd7 e6+ Kc6 Be5 dxe5 e8N f5 d4 f4 Kd2 f3 Kc3 a4 Kb2 e4 g4 e3 a7 e2 d5+ Kb5 c6 Kc5 c7 e1N c8N f2 d6 Ng2 g6 Nd7 g5 Nb6 d7 Nh6 g7 Ng4 g8Q Ne1 g6 Nh6 g7 Nf7 Qe2 Kc6 Rh2 Nf3 Bh3 f1Q Ned6 N3e5 Bg4 Kd5 Ne4 Qh4 Ng3 Qf4 Nf3 a3+ Ka2 Nbc4 Ne1 Rb8 a8N Nd2 Na7 Rb3 Qa6 Rf3 Qa4 Rf2 Nc3+ Kc5 Rd1 Kd6 Ka1 a2 Nb6 Kc5 Kb2 a1N Nbc8 Nab3 Na2 Kd5 Rb1 Nc1 Ka1 Ng6 Rb4 Nfe5 Qf7 Rg8 Re4 Nh8 Qg6 Be7 Qa6 Bf6 Qf1 Rd8 g8N Bg7 Qg2 Rf8 Qe8 Rf6 Qd8 Rh6 Qc7 Rg6 Qc4+
2Nr2B1/3NBqBR/2P4r/P3b1Q1/p3B1K1/qB1Pq1n1/1kr4p/1N5N b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 b5 b4 g5 h4 Nc6 hxg5 Rb8 bxa5 Ra8 a6 Nb8 a5 Nf6 Ra3 Ng8 Ra4 bxa4 d3 d5 Rh4 c5 Rh3 c4 Rh4 d4 Ke2 Be6 Rh6 Nc6 Rh1 Nb4 Bb2 c3 Bc1 Bc4 dxc4 d3+ Ke3 d2 Ke2 Nd3 cxd3 Qd5 Rh3 Qd7 Rh1 Qd8 Kf3 Kd7 g4 Kd6 f6 Ke5 f7 Kd4 a7 e5 c5 h5 g6 h4 g7 c2 c6 h3 g5 e4+ Kg4 e3 f4 e2 g6 e1Q f5 Qc8 Ba3 c1Q Be7 Qce6 Ne2+ Kd5 Bg2+ Ke5 Be4 Qd5 f6 Rh6 Ng3 Qe3 Qg1 Rd8 a8N Kd4 Nb6 d1R Nc8 Qa3 Rh2 Rd2 Nh1 Rc2 Qc1 Qf2 Qg5 Qda2 Bb4 Bd6 f8B Be5 f7 Ne7 g8B Nf5 Bg7 Qd2 f8N Qe3 Be7 Ng3 Nd7 Q2b3 Be6 Qb7 Bb3 Qc7 Rf2 h2 Rf8 Qa7 Rh8 Qb7 Rh7 Qa7 Nd2 Kc3 Nb1+ Kb2 Bgf8 Nf5 g7 Ng3 g8B Qb7 Ba2 Qbb3 Bg7 Qf7 Bb3
4B1nq/K2N2R1/N1rR2rR/k2b2bn/1b4QP/Rq1NR1PN/P7/6qb b - - 0 1 illegal: No possible last move
1r1B2n1/R1b4R/2P2QRR/bN2P1N1/6n1/3kRPK1/QqRr1n2/2bq2b1 b - - 0 1 legal: proof: a4 b5 axb5 f5 d4 h5 Kd2 c5 dxc5 e5 f4 Bb7 fxe5 f4 Ra6 f3 Ra3 f2 Ra1 Bf3 gxf3 Nc6 Bh3 Nb8 Bg4 hxg4 Ke3 Kf7 Kf4 Kg6 e4 f1N c4 d5 b4 a5 h4 a4 c6 a3 b6 a2 c5 g3 e6 g2 c7 d4 c8R d3 h5+ Kf6 b5 g6 h6 d2 h7 Nd7 e7 Ng3 e8R Ne5 b7 Rb8 b6 Bd6 Qe2 d1Q Nc3 Bc7 Nh3 g1B Ng5 Q8d4 Rh6 Nh1 Nb5 Nf2 Kg3 Neg4+ e5+ Kf5 Re6 Q4d2 c6 Qb2 Rce8 Rd8 b8R Rd2 b7 Ba5 Ra8 Bc7 Rb1 a1B b8R Ba5 Ra7 Bc7 Ne4 g5 R8e7 Ba5 Reg6 Bc7 Kg2 Kf4 Qc4 Ke3 Kg3 Ba5 Qa2 Ke2 Rb6 Kd3 Rba6 Bc7 Ra4 Ba5 Rc4 Bc7 Rc2 Bh2+ Kg2 Bf4 Rf7 Be3 Kg3 Beb6 Re7 Ba5 Reg7 Qd4 Ba3 Bb2 Be7 Bc1 Bd8 Qb2 Rf7 Ne7 Ra1 Re8 h8Q Ng8 Qf6 Rf8 Be7 Rb8 Bd8 Ne3 Rfh7 g4 Kh4 g3 Ng5 g2 Kg3 g1B Rb1 Neg4 Ra1 Qb3 Rb1 Qa3 Rb4 Qc3 Re4 Qb2 Re3+
4q2b/NB3N2/1KN1nR2/2R2bPP/1RqNQ1R1/4kP2/Nqq2qrn/7b b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 g5 fxg5 f5 a4 a6 axb5 f4 Qb3 f3 Kd1 f2 Kc2 Bf5+ Kc3 Be4 Qd1 Bf5 Kb3 Be6 Kc2 Bc8 Kd3 h5 g4 h4 b3 a5 Bb2 Qd6 Be5 Qd8 Bg3 hxg3 Ke3 Ra6 Kd3 Rf6 Ke3 Rf3+ exf3 Be6 Ke2 Bc8 Kd3 Kf7 Kc4 Kg6 Kc5 e5+ d6 g2 d4 c6 h4 a4 b6 e4 b4 e3 b5 e2 b7 e1Q d5 a3 b6 a2 Nc3 Qc7 Nge2 g1Q Nd4 Bd7 Ba6 f1B Rc1 a1Q Na2 Bg7 Rc4 Bf5 d7 Qac3 d8N Qb2 d6 Bg2 d7 Qgf2 Nf7 Nf6 d8N Qe8 Rb4 Rg8 h5+ Kh7 Qb3 Bh8 Rc1 Bh1 g6+ Kg7 Qd5 Nbd7+ Kc4 c5 Kb5 c4 b8N c3 b7 c2 Nd8c6 Qf4 Na7 Nf8+ Kb6 Ne6 Nbc6 Q4d2 b8R Qd1 Nd6 Kh6 g7 Kg5 Nf7+ Kf4 Bb7 Ke3 Rc8 Qd3 Rd1 c1Q g5 Qdc4 Rg1 Ng4 Rg3 Rf8 g8R Q1c2 Rg6 Nh2 Rg4 Rg8 Rf6 Rg7 Nh6 Re7 Nf7 Rc7 Ne7 Rc5 Rc7 Ra5 Rc5 Ra3 Nec6 Rd3 Nc1 Rd1 Na2 Rg1 Nc3 Rg3 Na2 Rg2 Qe4+
2bk2N1/2P4n/3B3q/1RbrN2B/1QKBBnP1/1npNr3/1r1P4/1N1b3N b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 b4 d5 c4 c6 c5 Qd6 Ra4 Qc7 bxc6 Qa5 b5 Qd8 Rc4 dxc4 Ke2 e5 f4 a5 c7 h5 f6 h4 f5 e4 b6 h3 b7 a4 f7+ Kd7 f6 h2 g6 a3 g7 e3 c6+ Kd6 Nh3 a2 Qb3 a1N Qb4+ Ke6 Bb2 Qd7 Nf2 Rh6 Bd4 c3 Kd3 e2 Kc4 e1R Bd3 Re3 Be4 Na6 b8B Bc5 f8N+ Kd6 g4 Nb3 f7 Ke7 Ne6 Nf6 f8N Rh5 Nf4 Qd6 N4d3 Rd5 Nd7 Nh7 N7e5 Qh6 g8N+ Ke8 Rg1 h1B Re1 Bf3 Nh1 Be2 Rf1 Ra7 Rf5 Bd1 Rh5 Rb7 Rf5 Be6 c8B Nc7 Bd7+ Kd8 Be8 Bc8 Bh5 Ne6 Bd6 Nf4 Rf7 Ra7 Rb7 Ra2 Rb5 Rb2 c7#
RRbk4/N4q1p/7n/R1q2PP1/1bNP1B1R/1r1n3r/Q1b4R/KNN1n3 b - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 exf5 b4 cxd5 b3 axb3 Bd7 b4 Be6 b5 Bc8 b4 g5 hxg5 a6 b6 Qd6 b7 Nh6 b5 Qd8 b6 Ng8 Bb5+ axb5 g4 c5 f4 e5 d4 c4 Kd2 c3+ Kc2 b4 d6 e4 g6 e3 d7+ Ke7 f6+ Ke6 f5+ Kd6 g5 e2 f7 Ke7 g7 e1Q Ra5 Na6 b8R Nh6 g8R Nc5 b7 Qc7 d8N Nd3 Bf4 Qee5 Qd2 Qec5 Rh4 Ne1+ Kc1 c2 Kb2 c1N Nc6+ Kd7 Ne2 b3 Na7 Ncd3+ Ka1 Kd8 Nc1 Qd7 Rg6 Bd6 f8N Qf7 Nd7 Rg8 Re6 b2+ Ka2 Be7 Nb6 Rh8 Nc4 Bf8 Nc3 b1B+ Ka1 Bc2 Nb1 Bd6 Rg6 Re8 Rh2 Re3 Re6 Rh3 Re4 Ba4 Qa2 Bc2 Nb5 Ra6 Na7 Rb6 Ra8 Rb3 b8R Qe5 Bg3 Bb4 Rh4 Qc5 Bf4
5q1k/qB2r3/p1K1N3/BQRR1P1r/P5b1/1RBP4/3qqBRn/n2B2b1 b - - 0 1 legal: proof: e4 d5 f4 c5 c4 f5 exf5 Qd7 cxd5 Nc6 b4 Qd8 bxc5 Nb8 g4 h5 g5 g6 Na3 Qb6 Nc2 Qd6 Ne3 Qd8 fxg6 Bg7 f5 Bf8 Ng4 hxg4 Ke2 e5 Ke3 b5 Ke4 b4 a4 b3 h4 a6 d3 g3 g7 Kf7 g6+ Kf6 h5 b2 d6 b1Q Kd5 e4 d7 e3 c6 g2 c7 e2 h6 e1Q h7 Nc6 Ne2 g1Q Ra3 Qbb4 Be3 Ne5 Qb1 Bc5 Nd4 Qb2 Be2 Qed2 Ne6 Ng4 Bd1 Ra7 Kc6 Qf8 Bf2 N8h6 g8R Ne3 g7 Nc2 Rb3 Ng4 d8B+ Kf7 Rh4 Nh2 Rd4 Na1 Rd5 Qe5 Qb2 Qee2 Qe5 Qe7 Re8 Qf8 g8R Bb6 Rg2 Bb7+ Kd7 Bc5 c8B Bb6 Rc5 Bf3+ Bb7 Bg4 Rd5 Be3 Ba5 Bc5 Kc6 Bd4 Bc8 Re7 Bb7 Ba7 Rc8 Bc5 Be1 Qd4 Qb8 Qdg7 Bh4 Bg1 Bf2 Qd4 Qe5 Qa7 Qb8 Rg8 h8B Rg5 Bhc3 Kg8 Qf4 Kh7 Qb4 Rh5 Qb5 Kg8 Rc5 Kh7 Rd8 Kg8 Rd4 Kh8 Rdd5+
bq3q1N/B1N3nB/BpbNN2K/3b4/1nPn3N/qP3BR1/3P4/3rQk2 b - - 0 1 legal: proof: h4 g5 hxg5 Bh6 a4 Bg7 a5 Bf8 e4 d5 a6 b6 Rh2 Nc6 Qh5 Rb8 Rh1 Rb7 axb7 a5 Qd1 Nb8 b3 e5 Ra2 c5 Rb2 c4 f3 c3 exd5 cxb2 f4 e4 Nh3 Bd6 Ng1 Be5 fxe5 Qf6 Qg4 Qe7 Qd1 Qd8 Ke2 Ke7 Ke3 h5 Kf4 f5 g4 h4 e6 Kd6 e7 Kc5 e8B Kd4 g6 e3 g7 a4 g5 e2 g6 e1N d6 h3 d7 a3 Nc3 b1B Ba6 h2 Bb2 Nf3 Qe1 Nh6 g8B a2 g7 a1Q Bh5 Qa3 Bh7 Nc6 g8N Nb4 b8N Bb7 Ne7 Bc6 Ng6 Qe8 d8N Rg8 Kg3 f4+ Kh3 Rg7 Nh8 Nf5 Ba1 Re7 Kg4 Ng7 Bb2 Re3 Ne4+ Rc3 Nd6 Qg8 Nh3 Qf8 Rg1 h1B Ng5 Ba8 Bc1 Re3 c4 Bbe4 Rg3 Kd3 Bb2 Nd4 Ba1 f3 Nde6 f2 Nf3 f1Q Kg5 Qe2 Nh4 Qh2 Bf3 Bg2 Qc1 Re1 Kh6 Rg1 Qe1 Rf1 Qf2 Rd1 Qe1 Bc6 Bc8 Bh1 Na6 Bd5 Nac7 Ba8 Rg6 Bec6 Ba6 Qg3 Bg4 Bhd5 Bf3 Nb5 Be5 Nd4 Ndf5 Qf4+ Rg5 Qb8 Nd6+ Qf5 Rg6 Qff8 Rg3+ Qf5 Ne4 Qc8 Ne8 Qf8 Bb8 Qc7 Ba7 Qb8 Qh1 Qc8 N8c7 Qb8 Bg2+ Ke2 Nd6 Kf2 Bf3 Qf7 Be2 Qff8 Qe4 Ke1 Bf3+ Kf1 Qe1+
3K1R2/nPn5/QP1R2R1/kp5q/pr2RNb1/B1N2R2/q3rPb1/1N4Nq b - - 0 1 illegal: No possible last move
6QN/1K1nRqq1/6B1/1PbB1rBB/1N5Q/BpnrBP2/1P1p4/1k1nr3 b - - 0 1 legal: proof: e4 c5 a4 h5 g4 f5 exf5 a5 gxh5 b5 d4 b4 dxc5 Ba6 Nh3 Bb5 axb5 a4 Ng1 a3 Nd2 a2 Rb1 axb1Q Ke2 Kf7 Ke3 Kf6 Kd4 e5+ Kd5 g5 c4 e4 h4 g4 f3 b3 h6 g3 h5 d6 c6 g2 h7 e3 h6 e2 c7 e1R c8B Nd7 Kc6 Ke5 c5 Kd4 f6 d5 f7 Qf5 Kb7 Ndf6 c6 Qc2 c7 Re5 Nb1+ Qd2 Nc3 Qe7 Bd3 Qe3 Be6 Qe8 c8B Rf5 Nh3 g1N Ng5 Ra1 Qe1 Nd7 Na2 Ngf6 Nb4 Nh3 Qh4+ Ne4 Re1 Bc5 f8B Qg1 Nf7 Nf2 Bg5 Nd1 Bfe7 Rf8 Nh8 Qf7 Re3 Rd8 Bf8 Rf6 Bg4 Rb1 Bh5 Rf5 Re1 Qg4 Re2 Nec3 Re7 Rc1 Bb1 Kc4 Be3 d4 Bc2 Rd5 Bcg6 d3 Bg5 d2 Be3 Ne5 Be6 Nd7 Bg5 Qf6 Bg8 Kd4 Be6 Rf5 Bd5 Qe6 Nf7 Qf6 h8Q Qg7 h7 Qf4 Qg8 Rb1 Na6 Kd3 h8B Kc2 Nb4+ Kc1 Bh6 Qc4 Be3 Ra1 Bg5 Kb1 Be3 Qh7 Bf6 Qg7 Bc6 Qd5 Nh8 Qdf7 Bfg5 Ra6 Bd5 Re6 Bf2 Re1 Bfe3 Ne5 Be6 Rd3 Bd5 Nd7 Re5 Ka1 Na2 Ba7 Ba3 Bc5 Re7 Kb1 Nb4
Qb1b4/pQ3b2/2P1k1Qq/r1r1b1RQ/1P3nq1/4NBPp/1RQ5/N3K1Q1 b - - 0 1 legal: proof: e4 d5 d4 g5 h4 c5 dxc5 b5 hxg5 f6 a4 d4 axb5 Nd7 Bf4 Nb6 Be5 Nd5 exd5 fxe5 f4 Kd7 b4 h5 c4 e6 c6+ Kd6 b6 e4 c7 h4 g3 h3 g6 d3 f5 e5 b7 e3 b8Q e2 c5+ Ke7 f6+ Kd7 d6 e4 g7 Rh5 f7 Ke6 d7 Nf6 g8Q Rf5 Rh2 Be7 Bg2 Nd5 Nc3 Nf4 Qb7 Qf8 d8Q Qh6 Qd4 Bd8 Ra5 Rb8 c6 Rc5 Qc2 Bd7 Qgg7 Be8 f8Q Bf7 Qb5 Rb6 Bf3 Ra6 Nd5 d2+ Kf2 d1Q Qg6+ Bf6 Qa8 e1B+ Kf1 e3 c8Q+ Kd6 Qcb7 Ke6 Qa1 Qd4 Qac1 Bc3 Ne2 Qc4 Q1b1 Be5 Ke1 Bb8 Nc1 e2 Ne3 Qe4 Rf2 Qf5 Nb3 Qg4 Qh7 Bd8 Na1 Nh5 Qbd3 Nf4 Rb5 Ra5 Qdg6+ Ke5 Qh5+ Ke6 Qg7 Rc4 Rg5 Rcc5 Kd2 e1B+ Kd1 Bc3 Qgg6+ Bcf6 Kd2 Be5 Qg1 Bdc7 Ke1 Bb8 Qcd3 Ra4 Rb2 Raa5 Qg7 Be7 Qc2 Bd8 Qgg6+
4q1b1/k1q3q1/2p5/2p1bq1q/P2QRBn1/1RP1N3/RPQ1K1R1/RBR2r2 b - - 0 1 illegal: No proof kernel
rNrN4/rN2k3/n2R1Pp1/3QqnR1/3pr3/PK1P2qR/2R1R3/2NrB3 b - - 0 1 illegal: No possible last move
1rB5/PQ1B2N1/1b4Nq/N2Rp2p/6bP/P1Bq4/K2bk1NN/1Br2b1q b - - 0 1 legal: proof: d4 a5 b4 d5 bxa5 Kd7 e4 Nh6 c4 Na6 cxd5 Ng8 d6 Kc6 d7 Nb4 d5+ Kc5 d6 Nd5 Ke2 Kb5 Ke1+ Kc6 f4 Kc5 f5 Kc6 Bg5 Kc5 Bd2 Kd4 exd5 Ke5 Bc1 Kf6 Bf4 e5 Qb3 Nh6 Bc4 Ng4 Bc1 Nf2 Qd1 Ne4 Bf1 Nc5 a3 Ne6 fxe6 g5 Ra2 Kf5 Rf2+ Kg6 Rf4 gxf4 Qf3 Kf5 Qd1 Kf6 Kd2 Kg5 Kc2 b5 Kb2 h5 g4 c5 h4+ Kh6 a6 f5 a7 b4 e7 b3 e8B c4 g5+ Kg7 g6 Kh6 g7 Qe7 d8N Rb8 g8B Qc7 d7 Bb7 d6 Qb6 Bh3 Bc8 Nf7+ Kg6 d8N f3 d7 f4 Ne2 f2 Nd2 f1B Nc6 f3 d8N f2 Na5 Bg4 Ne6 Kf5 Nf3 Ke4 N2f4 Bc5 Ng7 Qh6 Bd2 Bb6 Bc3 Ke3 Bh7 Rg8 Ba4 Rgc8 Nh8 Rc6 Ka1 b2+ Ka2 Rc7 Bb1 Rcc8 Be1 c3 Nhg6 c2 Qd5 c1B Ng2+ Ke2 Qb7 Bd2 Bd7 Rc6 Nh2 Rc1 Ne3 Bg2 Bc8 f1Q Bd7 Qf5 Bc8 Bf1 Ng2 Qd3 Bd7 Bde3 Bc3 Bd2 Bc8 Bf3 Bhe6 Bg4 Bed7 Qde3 Nf5 Qg1 Ba4 Bf4 Bbc2 Bg5 Nge3 Bfh3 Ng7 Qg2 Rf1 Qh1 Rd1 Bf1 Ng2 Bf4 Bad7 Bg5 Rd5 Bd2 Kb3 b1Q+ Ka4 Qb2 Bb1 Qc2+ Kb4 Qf5 Kb3 Qd3 Ka2
1nBQ2K1/2r3N1/k4P2/N2n2R1/p4bp1/1NN2PRp/1Pqr1Rbq/N2R4 b - - 0 1 legal: proof: c4 b5 g4 f5 gxf5 e5 d4 g5 a4 d5 axb5 g4 h4 Qg5 hxg5 Nh6 Be3 Nd7 cxd5 Nb8 d6 Ng8 d5 Ne7 Bc5 Ng8 Bd4 exd4 Kd2 Kd8 Kd3 c5 Kc4 a5 e4 h5 f6 h4 g6 h3 g7 a4 b6 d3 b7 d2 d7 Kc7 d8N Kb6 f3 Ra7 d6 Ra8 Kd5 c4 e5 c3 e6 c2 e7 c1Q e8N Qc2 d7 Qg6 Ke6 Nh6 g8R Qh5 Na3 Nf5 Rg5 Nd6 Rh2 Rg8 Ne2 Nf7 Nc2 Qh6 Nc3 Nh8 Ba6 Ng6 Kf7 Ne7 Rf2 Ra7 Ng7 Nd5 Nde6 Bd6 d8R Bf4 Ned4 Rh8 Rd7 Rd8 Nb3 Qh4 Rc1 Qg3 Nca1 Qh2 Rc2 Nb4 Rd3 Nd5 Rd4 Rd6 Kg8 Bf5 Rg2 Bd3 Rg3 Bf1 Rd3 Bg2 Rd4 Nd7 b8N Rc7 Nc6 Nb8 Nca5 Rdd7 Bc8 Rd6 Qg1 d1Q Rf2 Qc2 Rd1 Rdd7 Qe1 Rd8+ Qe8 Rd6 Bd7 Ka6 Qd8 Nb6 Rh1 Rd2 Rd1 Nd5 Bc8+
1n1nRn1b/3p4/2R2rB1/1P3B2/5RR1/Pp1rr3/2pPNRBK/BQ1qk3 b - - 0 1 legal: proof: e4 e5 b4 b5 h4 g5 hxg5 f5 exf5 a5 Ke2 e4 c3 e3 Qc2 Ba6 bxa5 b4+ c4 Bb5 Kf3 e2 cxb5 e1R Nc3 Rd1 Ke2 Nf6 Nd5 Ng8 Ne7 Nh6 Ng8 Nxg8 Kf3 Ke7 Kg3 Kd6 f4 Kd5 g6 Kd4 g7 c5 f6 h5 f7 b3 f5 c4 a6 h4+ Kh2 c3 g4 h3 a3 Rh7 f6 Ra7 g5 Re1 g6 Nh6 g8B Qe7 g7 Re3 Qb1 c2 Bg2 Kd3 Ne2 Rc7 a7 Rc3 a8R Qe6 Kg1 Qg4 Bb2 Be7 f8R Nf7 Rh2 Nd8 f7 Bf6 Re8 Rh6 f8R Be5 Be6 Rf6 g8B Qf3 Bf1 Qh5 Rf2 h2+ Kg2 h1N Ra6 Ng3 Bgf7 Nf5 Rc6 Ng7 Rf4 Qf3+ Kh2 Qh5+ Beh3 Nge6 Bg2 Qf3 Rg8 Nf8 Rg4 Qf1 Bh5 Qd1 Bf7 Rf5 Bg6 Bh8 Rfe4 Rf7 Rgf4 Rf6 Bhf5 Rg3 Rf2 Re3 Ref4+ Re4 Ng3 Qe1 Bf3 Rc5 Qa2 Rd5 Bc3 Qe2 Rg1 Qd1 Qb1 Rd4 Nh5 Rdd6 Rgg4 Rd5 Bg2 Rd4 R2f3+ Ke2 Ng3+ Ke1 Ne2 Re3 Ba1 Rdd3 Rf2
6RN/5qPN/3pp2N/K2Pr1NB/bn2bRP1/q1p2b1k/3N2R1/1R2Qn2 b - - 0 1 illegal: No possible last move
R1nk2r1/1nR1pRNp/2r1BN2/1bP5/7Q/1PR3Kn/NP1bb1Np/4N3 b - - 0 1 legal: proof: g4 b5 e4 f5 exf5 c5 d4 b4 dxc5 b3 axb3 Ba6 h4 Bc4 g5 Qc8 g6 Qc7 h5 Ba6 Bh6 gxh6 Ra3 Qc6 Ra1 Bc8 g7 Qg6 hxg6 h5 Qd5 h4 Qd2 Nh6 Qd1 Ng8 c4 a5 f4 d5 Kf2 h3 f6 d4 c6 d3 f7+ Kd8 c7+ Kd7 f5 a4 f6 d2 c5 h2 Qe1 d1B Nc3 a3 Bc4 a2 Nf3 Bc2 Rf1 Bd3 Rc1 a1N Kg3 Be2 Na2 Nh6 g8R Ng4 Rc3 Ba6 c8R Nc2 Rc7+ Kd8 Be6 Na3 Qf2 Ra7 Ne1 Nb5 Qf4 Nf2 Qh4 Nh3 Rff3 Nd6 Rf1 Ne8 Rff3 Bg7 f8N Ra8 f7 Bh6 g7 Nd7 Ng6 Bd2 f8N Nd6 Nf4 Rc8 Nfg2 Nb6 Rf7 Bab5 Ng6+ Be8 N6f4 Nb7 Rgf8 Rg8 Nh5 Rb8 Rf5 Nc8 R5f7 Rh8 g8N Ra8 Nc2 Ra6 Ngf6 Rg8+ Ng7 Rd6 Nce1 Rc6 Nd5 Bf1 Rff3 Be2 Nf6 Rb6 Rf7 B8b5 Rf4 Rd6 Ra4 Rc6 Ra8
2b2rR1/2prN3/Rp2QN1k/n1P5/3rrrRP/2N1q1RB/3N1pP1/2K3R1 b - - 0 1 illegal: No proof kernel
4R1Bb/B4pn1/3n1NB1/K1Ppp1q1/1r2P2P/1k2pBR1/B2Q3r/QbB5 b - - 0 1 illegal: Other
2Q5/1pNp1rB1/R7/2Q5/Np1n2PN/3N1bNK/1rpPk2P/RN1nn2r b - - 0 1 illegal: No proof kernel forced: wxLB
k1N2NNN/5R2/1RN2B1p/1n2qP2/b2p3p/4pK1R/3PP1pb/r1Rb3Q b - - 1 2 illegal: Other
r1R1R2Q/5pB1/1q2R3/2b1P2N/qnK1NPr1/Nr2Nb2/2P2nkn/2Rq1N2 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 e6 g4 Nh6 gxh5 Ng8 Bg2 Qc7 Bf3 Qd8 Bd5 exd5 Kd2 Ke7 Kd3 Ke6 h4 Kf5 f4 Kg4 b4 Kg3 e4 a5 b6 g5 b7 d4 c6 d5 h6 g4 h7 a4 c7 a3 b5 a2 h5 Be7 b6 Bg5 h6 Bd7 c8N Qc7 Ne2+ Kg2 Ng3 Kf2 Nd6 Be7 Nf1 g3 Nc4 g2 Nba3 g1R Nce3 Rg4 Bb2 Nf6 Rc1 Na6 b8N a1Q b7 Bc6 Nd7 Bc5 b8N Qb6 Rh4 Rc8 h8R Kg1 h7 Nb4+ Kd2 d3 Kc3 d4+ Kc4 d2 Re8 d3 h8R Rd8 Na6 Rdb8 R4h6 Rb7 Qf3 d1N Qh3 d2 Rc8 Nf2 Rhe8 d1Q Qh4 Nh5 Rhe6 Ng3 Bg7 Rbb8 e5 Bf3 Qh8 Rb7 Nd5 Kg2 N7f6 Rbb8 Nh5 Rb7 Nb5 Qa4 Na3 Rbb8 Nac7 Rb7 Ncb5 Rbb8 Nbc3 Rb7 Nd2 Nf1 Nce4 Nh2 Nf1 Rd7 Ne7 Rd3 Nd5 Rb3 Nde3+
b6N/r2bb3/rb4PB/2q1N1nK/RP2p1NR/1R2PqR1/knb4R/N1Q5 b - - 0 1 illegal: No possible last move, all moves rejected
2B2BbR/2b2n2/b1qRN2B/2Bp1Pbq/1r4nQ/R2r4/2nP2P1/B1KR1k2 b - - 0 1 illegal: No possible last move
3q2N1/b3PR2/2R2q2/N1p4q/Q3KP1n/rRN1R3/1nPNb1kN/rBb3q1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 f5 dxe5 h6 g4 Ke7 gxf5 Ke8 Bg5 hxg5 Kd2 Ke7 Ke3 c5 f4 d5 h4 a5 b4 g4 h5 g5 h6 g3 h7 g2 b6 d4+ Ke4 g4 b5 g3 b7 d3 b6 d2 e6 Kf6 e7 a4 e8N+ Kf7 f6 Ke6 f7 a3 Nc7+ Kd6 Rh3 a2 Nf3 g1B Nh2 g2 Nd5 Na6 b8R Be3 b7 g1Q Ndc3 Bg4 Rg3 Be7 f8R Nh6 Rf7 Nf5 Bg2 Rf8 h8N Nh4 Ng6 Nb4 Bh3 Bh5 Be6 Nd3 Rf3 Bg5 Ne7 Ra3 Ng8 Nb2 Qf1 d1Q Nd2 Bg4 Rb1 a1Q Rc8 Bf6 b8N Be5 Nc6 Re8 Rcc7 Re7 Rc8 Rea7 Ba2 Ra8 Na5 Ra6 Ndb3 Bc1 Re3 Ke6 Qf3 Bb8 Nd2+ Kd6 Qg2 Ba7 Qf1 Na4 Rb3 Nb2 Bb1 Bh5 Rh3 Ke6 e3 Bg4 Qb5 Be2 Qa4 Kd6 Nh6 Ke6 Rh7 Kf6 Rf7+ Kg6 Ng8 Kh5 Nhf1 Kg4 Rc6 Qe1 Rf3 Qeg3 Nh2+ Kh3 Ke5 Qd1 e4 Kg2 Rd3 Qg6 Re3 Qdf6+ Kd5 Qh5+ e5 Qg1 Ke4 Qd8 e6 Nd1 Na2 Qaf6 e7 Nb2 Nc3 Ra1 Qd4 Ra3 Nb7 R6a4 Na5 Ra1 Qb4 R4a3 Qa4
rB1QN1B1/1P1q2R1/1K1n4/1P1p1kqB/Nb1P1r2/2nbBn2/p7/Qb2B1B1 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 c5 b4 Qc7 b6 Qc6 b5 Qc7 Ra4 Qd8 Rb4 cxb4 Ke2 Kf7 Kd3 Kf6 Kc4 e5 f4 g5 h4 a5 h6 e4 h7 a4 h5 g4 h6 g3 b7 b3 Na3 d6 Ne2 e3 Rg1 g2 Nc3 b2 Be2 b1B Bh5 Ke7 f6+ Ke6 f5+ Ke5 f7 e2 f6 Be7 f8B e1N f7 Bh3 d4+ Kf5 Be3 Bf6 Kd5 Qe8 Nc4 a3 Na4 Ba2 Qa1 Nd7 Kc6 d5 Nd6+ Ke6 c4 Nc2 c5 Ne5+ Kb6 Ne1 c6 Qd7 c7 N1f3 c8B Bb1 Ne8 a2 Bd6 Bhf5 f8B Be7 Bb8 Nf7 Bh2 Ba3 Bb4 Bfd3 Be1 Nf6 Bb8 Rf8 h8Q Be7 h7 Nd6 Qg8+ Kf5 h8B Nfe4 Be5 Nc3 Bh2 Nde4 Qh8 Bb4 Qg8 Nd6 Qg5+ Ke4 Qh4+ Rf4 Qd8 Qg7 Be6 Qd7 Bg8 Kf5 Rf1 g1Q Rf2 Be2 Rg2 Bed3 Rg7 Qg5 Bhg1
1Q2q2N/pp1N1Q2/P2Bbn1R/k1bR4/2Nq2b1/1PN1P3/r2n2KN/2q2N1r b - - 1 2 legal: proof: f4 c5 c4 e5 fxe5 d5 cxd5 h5 g4 c4 gxh5 Kd7 Nf3 Ke7 Ng1 Ke8 a4 c3 Na3 c2 Bh3 Qe7 Bg2 Qd8 Be4 Bb4 Bd3 Bf8 Bc4 Bh3 Ba2 Bc8 Bb1 cxb1Q Kf1 Kd7 d4 Kc7 h4 Kb6 e3 g5 a5+ Ka6 d6 f5 d7 f4 e6 f3 b3 f2 h6 g4 d5 g3 h7 Qb6 d8N Qf5 d6 Qb4 e7 Be6 e8N Qb1 h5 Qg4 h6 Qh5 d7 Qa2 Ne2 Qb2 Nf7 Qc2 d8Q Qf3 Ned6 Qc7 Ne5 Ne7 Nf5 Qf4 Nf3 Qd4 Nc3 Nd5 Nh2 Qd7 Qh5 Nf6 Kg2 Nc6 Nc4 Ne5 Qf7 Rc8 Ba3 Nf3 Rad1 Qe8 Bd6 Nd2 Qdc7 Rd8 Qb8 f1B+ Kg1 g2 Ng3 Bd3 Ngf1 Bdf5 Kf2 Rg8 h8N Bg4 Ng6 Rh8 h7 Rc8 Nge5 g1Q+ Ke1 Rc5 Nd7 Rh5 Ne4 Rg8 h8N Kb5 a6 Rh7 Bg3 Bc5 Bd6 Rg5 Nc3+ Kb4 Nf3 Rgh5 Ke2 Rh2+ Ke1 Rf2 Rh6 Rg2 Rg6 Rh1 Rh6 Nb1 Nh2 Ra2 Bc7 Nd2 Bf4 Qg2 Bd6 Qge4 Kf2 Qc2 Kg3 Qc1 Kg2 Nde4+ Nb2 Ka5 Rd3 Qe5 Rd4 Nd2 Rd5 Qd4 Nc4+
1r4n1/1bQQN1p1/qq3rNB/Q4RPk/3n3p/1Q1q1Pb1/K3PQ2/n3QB2 b - - 0 1 illegal: No proof kernel
1NN3NN/1B1P3N/1nKn2pn/pPRrB3/1B1Bk1P1/4rb2/3bQ3/2bq1q2 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 f5 e4 h4 exf5 d4 Ra3 Ba6 Rg3 d3 cxd3 hxg3 d4 Bb7 d5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 c5 d4 a5 f4 e5 h4 g2 h5 c4 h6 c3 f6 c2 f7 g6 h7 Be6 b6 Ne7 f5 Qc8 b5 Bg7 f8B Bg8 b7 Qe8 f6 Qd8 f7 Qe8 Rh5 Bf6 Bf4 c1N Nc3 Bh4 Na4 Nd3 Ne2 g1Q Nec3 Bg5 Bg2 Qf1 Qe2 Qd7 Nb6 Nb2 Be3 Nc4 Nc8+ Kc7 Bh1 Nf5 Bb4 Nh6 f8N Qd8 Bf2 Nd7 b8N Bc1 Rg5 Ndb6 d6+ Kb7 d7 Kc7 d5 Nd6+ Kf3 Be6 Ne4 Bf7 Nf6 e4+ Kg3 e3 Kf4 Be6 Ke5 Bf5 Kd4 Be4 Kc5 Bf3 Ng8 Ra6 Bg3 Ra7 Be5 Ra8 Qf2 e2 Rh5 e1B Qe2 Bed2 Bg2 Qh4 Bh1 Qhe1 d8B+ Kb7 Bg5 Qd1 Be3 Kc7 B3d4 Ra6 Nf6 Rg8 h8N Ra7 N8h7 Re8 Ng8 Rb7 Bh2 Re3 Rf5 Kd8 Kc6 Rd7 Bhe5 Ke8 Kc5 Kd8 Bg2 Kc7 Rf4 Rf7 Bh3 Be4 Bg7 Rf5 Bdc3 Ndf7 Bg2 Rg5 Rf5 Rh5 Bcd4 Rg5 Na6+ Kd7 d6 Ke6 d7 Nd6 Nb8 Ba8 Bb7 Rh5 Ba6 Bf3 Bb7 Rg5 Rd5 Rh5 Kc6 Rg5 Kc7 Rf5 Rc5 Rfe5 Rc6 Kd5 Bf6 Ke4 Rc5+ Rd5 Kc6 Qh3 Bg7 Qhf1 Bge5
nB5r/N2P2K1/bp2N2N/b1r1N2Q/1RP1p1b1/1qk1NNR1/3nP3/Q1r4q b - - 0 1 illegal: No proof kernel
5B2/3b4/2NBp1QP/P2rBQRB/R3PpnK/rB4n1/1k3br1/r2r1Bq1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h6 g6 Qd7 Nc3 Qd6 Ne4 Qd8 g5 h5 Nf2 Rh6 Ng4 hxg4 Bh3 Rh4 Bf1 Rh8 Kf2 Kd7 Kg3 Kd6 h4 Kc5 d4+ Kc4 a4 Kc3 h5 c5 g7 b5 d6 f5 d7 b4 g6 b3 a6 f4+ Kh4 c4 a5 b2 d5 b1R h6 g3 a7 g2 d6 Na6 Ra4 Ra1 Qd5 Rh7 Ba3 Rb8 a8B Qb6 d8B Nc5 d7 Nf6 g8B Nce4 g7 Ng4 Nf3 g1R Nd4 Rg2 Qf5 Ng3 Bd6 Kb2 Rg1 c3 Bf3 c2 e4 c1R Nc6 Rd1 Bb3 e6 g8Q Rg7 B3e2 Rg5 B8e7 Ra3 d8B Bd7 Qgh7 Rc8 Qfg6 Rgd5 B8c7 Rda1 Qhf7 Rd8 Qff5 Bg7 Bed1 Bd4 Bf8 Bf2 Be5+ Qd4 Bcd6 Rc8 Nd8 Rcc1 Bde2 Rd1 Nc6 Nh2 Bh5 Ng4 Qgf7 Kc1 Q5g6 Kb2 Qff5 Be3 Qgf7 Nh1 Qe8 Re2 Bf6 Nh2 Rg3 Rg2 Rg4 Ng3 Rg5 Ng4 Qeg6 Bg1 Ne5 Qf2 Bfc4 Qf1 Nc6+ Bd4 Bd3 Qf2 Bf1 Qg1 Bd8 Bf2 Bf6+ Kb1 Bfe5 Kc1 Nd4 Kb2 Nc6+
1b2N1kN/RR1pq3/6n1/1N1NN1pn/2KQ2Rr/8/P1PBnnPR/1nr2b2 b - - 0 1 illegal: No proof kernel
1R2b3/1b1PB1pq/2n5/kprnBRPN/4Q3/nr4B1/BbP1KQ2/Bb3B2 b - - 0 1 illegal: No proof kernel
KQbr1Bk1/R3q3/Q1P2q2/N2Q4/Q3p3/QQq1qp1N/2PR1P2/b2rnn2 b - - 0 1 illegal: No possible last move, all moves rejected
N3Rn2/2N1K2N/bR3n2/1p1qp3/P1q1P1Qr/1rR1bN2/1PB2q1k/R3R1q1 b - - 0 2 legal: proof: f4 g5 fxg5 d5 c4 h6 cxd5 Bg4 g6 Bc8 g4 a5 g5 a4 Qxa4+ Nd7 d3 Nf6 g7 Ng8 Qa7 Nb8 g6 Rh7 Bd2 Rh8 Bg5 hxg5 Kf2 Kd7 Kg3 Kd6 a4 Ke5 e4 c5 h4 f5 d4+ Kf6 d6 b5 h5 e5 d5 g4 Kh4 g3 h6 g2 h7 c4 d7 f4 d6 f3 Bd3 f2 Bc2 f1Q Nd2 c3 Ngf3 g1Q Nc4 Na6 Nb6 Qe7 d8N Qf7 d7 Qa2 Ne6 Nc7 d8R Ba6 Rd6 Rd8 Na8 Qd5 Rb6 Bc5 Qb8 Rf8 Qc8 Be3 Rh3 Qff2+ Rg3 Ne7 g8R Ne8 g7 Ng6+ Kg4 Rf7 Kh5 Rd7 Nec7+ Rd6 Qg4 Nf8 Bd3 c2 Rh3 c1Q Bc2 Ke7 Rg3 Nf6+ Kh4 Ne6 Re8+ Kf7 g8N Nf8 Rc8 Qcf1 Re8 Rc6 Re1 Rc3 Ra1 Qfc4 Re1 Bd4 Kg5 Rb3 Kf5 Nh5 Nf6 Be3 Nd7 Nf6 Ra1 Rg8 h8R Rg6 Rh4 Rh6 Rh1 Rh4 Rgh3 Qgh2 Rhe1 Qhg1 Qh5+ Kg7 Qg4+ Kh6 Qg2 Ne6 Nf8 Kh5 Nh7 Nf8 Qg3 Bd2 Qf4 Bc1 Nfg5 Bd2 Rc3 Be3 Nf3 Rg4 Nfg5 Kh4 Nf3+ Kh3 Qg5 Kg2 Qg6 Kh1 Qg7 Rh4 Qg4 Ne6 Kg6 Nf8+ Kg7 Ne6+ Kf7 Nf8+ Qe6 Kg2 Ke7 Kg3 Qd7 Kg2 Qg4+ Kh1 Nd4 Kh2 Nf3+
2N3Q1/q5N1/1R1R1k2/p1BR1b2/PPbKn3/N1Nn1rN1/2RP1p1b/2rbq3 b - - 0 1 illegal: No proof kernel
K1k1B3/b2rnNr1/2B1n1q1/P1Np4/4N1b1/B1Rp1QP1/N1BPN1p1/1nr5 b - - 0 1 illegal: No proof kernel
2N5/KNn1p3/B1bpb1p1/PN1r1b1N/3NP2n/3P1q2/6RR/1QNknr1Q b - - 1 2 legal: proof: g4 a5 h4 c5 b4 f5 gxf5 g6 bxa5 Nc6 h5 Kf7 h6 Nb8 Ba3 Ke8 Bb4 Bg7 hxg7 cxb4 a4 Kf7 f4 Kf6 Kf2 h5 Ke3 b5 Kd4 h4 Kc5 h3 c4 h2 a6 b3 a5 b2 a7 b4 Ra2 b3 Nc3 b1B Nb5 Nh6 g8N+ Kf7 f6 Ke6 f7 Kf5 f8N Kg4 f5 b2 f6 Qe8 Kb6 d6 c5 Bcf5 c6 Qd7 f7 Be6 c7 Nf5 c8N Nh4 Nf6+ Kg3 e3 Kf2 Nh5 Na6 Ne2 Bbf5 Qb1 Nc7 Nc1 Ke1 Kb7 Qe8 Nd7 Qf8 Nc5 Kd1 Kb6 Rh7 Nb7 Rh6 Rg1 h1B Rg2 Rh8 Rh2 Bc6 e4 Rb8 a8Q Rh7 Ka7 Rh6 Qa1 b1N Qb2 Na3 Qb1 Nc2 Rg2 Qg7 f8N Ne1 Bc4 Qh8 d3 Qf6 Rh2 Rh7 Rab2 Rf7 Rbg2 Bed7 Ne6 Rf8 Ned4 Bde6 Nc5 Rb6 Nb7 Qf7 Na3 Rb5 Qb8 Rd5 Ba6 Bh3 Nab5 Qf3 Nb6 Rf4 Qh8 Bhf5 Qh7 Qe3 Nc8 Rf1 Qh6 Qf3 Qe3 Rc5 Qg1 Rd5 Qh1
2n1R1q1/1rk1pQ1r/pnP5/6n1/RP1b1R2/3pP1Q1/RrB2R1B/KN4Rb b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 f4 Nb8 fxg5 Bh6 Nh3 Bg7 Ng1 Bf8 g4 h6 g6 Rh7 Nd2 Rh8 Ne4 h5 g5 Bh6 Nf2 Bf8 Ng4 hxg4 Kd2 d5 Kc3 Kd7 b4 f5 Kb2 d4 h4 f4 c4 a6 b6 g3 c6+ Kd6 c7 g2 c5+ Kc6 b7 f3 h5 f2 h6 Qd6 g7 Bg4 c8R+ Qc7 g6 Ra7 h7 Nf6 g8Q Nbd7 b8R Ra8 g7 Ne8 Qd3 Bf3 Rh4 Ra7 Ra4 Ndf6 Rf4 Nd6 Re8 Qa5 Ka1 Kc7 c6 Qg5 Qf7 Rb7 g8R Bg7 Bd2 Bd5 Qg3 Nc8 Nf3 g1N e3 Nh3 Be1 Be4 Nd2 Nd5 Bd3 f1R Bc2 Rf2 Nb1 d3+ Bc3 Bh1 Be5+ Nd6 Ref8 Nb6 Rbe8 Bf6 Rg7 Qg4 Rg6 Ng5 Rg7 Rg8 Rg6 Rg7 h8R Re2 Rh2 Rh7 Rg2 Bh8 Rg1 Qe6 Rh6 Qg6 Rh2 Qg8 Bd1 Rb2 Rc2 Rb3 Rca2 Rb2 Bc2 Bg7 Rf2 Bf6 Qg4 Bh8 Bh2 Bd4 Rf4 Ndc8 Qg3 Rb8 Qg6 Rb7 Rf2+ Nd6 R8f4 Ndc8 Qf7
5kN1/bp6/3n2nr/1PQ1b1Pp/R1rp4/B1BB1KQP/1q1q2BB/bB5N b - - 1 2 illegal: No proof kernel
5RQ1/1K1nrnPq/R1B2Rpq/2kp2r1/1b1Bp3/1Rb1P3/3P2Q1/1NRn2R1 b - - 1 2 legal: proof: c4 g5 a4 b5 axb5 Ba6 f4 Bb7 fxg5 Bc8 b4 d6 b6 Bh3 b7 Na6 b5 Nb8 b6 Bd7 g4 Qc8 g6 Kd8 g7 Bf5 g5 Bd3 g6 Nc6 Nc3 Kd7 Nd5 Qd8 Nf4 Nf6 g8R Nb8 g7 Ke8 Ng6 hxg6 Bh3 Be4 Bg2 Bc6 Bf1 Bb5 cxb5 Rh7 Qa4 Rh5 Qd1 Rh8 Kf2 Kd7 Ke3 a5 Kd4 c5+ Kc4 e5 h4 a4 h5 a3 h6 a2 h7 e4 Bb2 Ng4 Kd5 f5 Be5 c4 Rc1 a1B e3 c3 Qe2 f4 Qf3 c2 Qg2 f3 Ne2 f2 Nc3 Ra7 Rg1 Nh6 Nb1 Qg5 Bd3 Be7 Rf8 f1Q Rf6 Bc3 Be2 Rf8 h8Q Nf7 Qg8 Qh6 Bc4 Qe1 Bb3 Qeh4 Ba4 Na6 b8R Nc5 b7 Rd8 Rce1 c1N Ra8 N1d3 b8R Nb2 Rc1 Nd1 Rc8 Ra5 Ra6 Re8 b6+ Rb5 b7 Qh7 b8R Q4h6 Rf4 Bf8 Rf6 Re7 Rd8+ Kc7 Re8 Ra5 Bc6 Nd7+ Kc4 Rd5 Rb3 Rb5 Bf4 Rh5 Be5 Rg5 Kb5 Rg3 Bd4 d5 Rd8 Rg5 Rda8 Re6 Be5+ Bd6 Rf8 Re7 Ra2 Qh1 Ka6 Q1h6 Bd4 Bdb4 Ka7 Re6 Ra6 Kd6 Be5+ Kc5 Kb7 Re7 Bd4+
nN1B3q/Pn1kn3/Q1R4p/3P1pRb/1NrpNN2/K2n4/R2b1r1P/1RR5 b - - 0 1 illegal: No possible last move, all moves rejected
rB2n2B/4NkRq/B3p2P/2BQ1q1p/4b3/1Q2B1PP/KN1pr2p/1Bb3n1 b - - 0 1 illegal: No proof kernel
5N2/5p1q/2QN1P1P/2R1p1nn/1N3BBr/Kp1pQb1N/1PNp2p1/1N1k2r1 b - - 0 1 illegal: No proof kernel
2N3bq/Rpk1RRp1/1Rpn1pQb/K4PR1/1p5b/2P1rQP1/6nB/3N1r1R b - - 0 1 illegal: No possible last move, all moves rejected
1R2n3/p3P3/2NpNP2/qN5B/pq1N1K1R/4n3/P1k1r2n/1N2RNBq b - - 0 1 legal: proof: d4 c5 dxc5 h5 b4 b5 g4 Ba6 gxh5 Qc7 Qd4 Qc6 Qc4 Qe4 Qb3 Qb7 Qa4 bxa4 b5 Qc7 b6 Bc8 b7 Qd8 bxa8R f5 e4 e6 e5 Be7 Ke2 Bh4 Ke1 Bf6 exf6 e5 f3 e4 Bd3 e3 Ba6 Bb7 Bf1 Be4 fxe4 Qb6 Ne2 Qc7 Ng1 Qd8 Ke2 Kf7 Kf3 Ke6 h4 Ke5 c4 Kd4 c6 g5 c7 g4+ Kf4 g3 c8N g2 h6 e2 e5 Kd3 c5 Qe7 c6 Qh7 c7 Qf7 h5 Qf8 h7 Qc5 h6 Qf8 e6 Qc5 Nb6 Qa5 c8N Qd5 Nc4 Na6 Nf3 g1N Be3 Qc6 N8d6 Qb7 Rh4 Qb4 Nd4 Nc7 Rb8 Ne8 N6b5 d6 Ncd2 Nf3 Bg1 Nh2 Bg2 e1Q Bf3 Qa5 Bh5 Ne7 Nf1 Rf8 h8N Qeb4 h7 Nd5+ Kg3 Rf7 Ng6 Re7 h8N Ne3 Nf7 f4+ Kh3 f3 Kg3 f2 Kf4 Rc7 e7 Rc2 Nd8 Re2 Nc6 Qa3 Ne6 Kc2 Nge5 Q3b4+ Ncd4+ Kd1 Ng3 Kc1 Nc6 f1Q+ Ke4 Qg2+ Kf4 Qd5 Nf1 Qh1 N1c3+ Kb2 Re1 Nc4 Nf3 Kc2 Nb1 Ne3+ Nfd4+
n4b1R/PB1brrkP/n7/b3P3/rr1BK1B1/3R1n2/BN5R/1BB1N2q b - - 0 1 legal: proof: c4 d5 cxd5 e5 b4 a5 bxa5 Be7 f4 Bf8 fxe5 h5 Qc2 h4 Qf5 h3 Nxh3 g6 Ng5 gxf5 Nh7 f4 Kf2 b5 Kf3 f5 d4 Kf7 e4 c5 h4 c4 g4 b4 a4 c3 e6+ Kg7 d6 b3 g5 c2 g6 b2 a6 Ra7 e7 Qe8 d5 Rd7 a7 Ba6 a8B Nf6 h5 Rd8 a5 Kh6 d7 Bg7 d6 Rf8 e5 Rf7 Rh2 Bb5 a6 Bf8 g7 Nd5 g8B Kg7 a7 Nc7 Na3 b1R Ng5 Rb4 Bh3 Nba6 Bb7 Na8 Nc4 Rc8 d8B Bd7 Ra2 Rc7 Nb2 Rcc4 Ra3 Rd4 Bd2 c1B Bb6 Rdc4 Bde3 Bd2 Bbd4 Qd8 e8B Re7 Rb3 Qa5 Bef7 Qa1 Bg6 Bc3 Bg4 Qh1+ Rg2 Ra4 Bc1 Ba5 Rd3 Rcb4 h6+ Kh8 h7 Kg7 Kf2 f3 Ke3 f2 Rh2 f1R Nf3 f4+ Ke4 Rf2 Ba2 Rf1 Rg2 Rf2 Ne1 f3 Rh2 Rf1 Ke3 f2 Bge4 Rg1 Kf4 f1N Bef5 Nd2 Ke3 Be6 d7 Nf3 d8R Bd7 Ke4 Rf7 Bh3 Rg6 Bhg4 Re6 Rc8 Be7 Rh8 Bf8 Bb1 Re8 Be6 Ree7 Bea2
1q1n1b1R/2qNBk2/B1P1r3/1r3Pp1/B2P1bB1/8/1r1N1Nn1/KB2RqB1 b - - 0 1 legal: proof: d4 b5 a4 d5 axb5 g5 h4 c5 dxc5 d4 hxg5 d3 g4 f6 g6 Na6 g7 Qd4 g5 Nb8 g6 Bf5 Qd2 Qd8 Qg5 d2+ Kd1 Bd3 exd3 fxg5 Ke2 Qd4 Rh6 Qd7 Rh1 Qd8 Kd1 h5 c4 a5 Kc2 d1R f4 e5 b4 h4 Kb2 a4 c6 h3 b6 e4 d4 h2 c7 e3 c8B e2 c5 e1Q c6 Qe4 b7 Rh6 b5 Qe5 b6 Na6 b8N Nb4 b7 Qdc7 Ba6 Nc2 Nd2 Ne3 Bg4 Ng2 Nd7 Rb8 f5 a3+ Kb1 Qed6 Nh3 a2+ Kb2 Re1 Nf2 Re5 Rb1 Ra5 Ka1 Rb5 Ba3 Qe5 Rhe1 h1Q Be7 Qf1 Rb3 Rh5 Rc3 Nh6 g8B Nf7 g7 Nd8 Bb3 Rh6 g8B Re6 Rh3 Qf4 Rh8 Qh2 Kb2 a1B+ Kb1 Bb2 Ba4 Bc1+ Ka1 Rd6 Ba2 Re6 Bb1 Kf7 Nde4 Bf4 Nd2 Rc8 b8B Qg3 Ba7 Rcb8 Bac5 Rb2 Bcd6 Qb3 Be5 Qbb7 B5d6 Qbc8 Be5 R8b5 B5d6 Q8b8 Be5 Be3 Bh2 Bf4 Bg1
1B4K1/1n1q1n2/1k1b1r1p/1P2P2R/Bp1n1q2/1NP5/B1b2BRN/3RB1Br b - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 b5 hxg5 Bd6 a4 Bb4 axb5 Bf8 b4 c5 e4 d5 exd5 Bh3 b6 Qc7 b5 Bc8 Qg4 Qd8 Qb4 cxb4 Ke2 Kd7 Kf3 f5 Kf4 a5 g4 a4 d4 a3 g6 h6 d6 a2 g7 Ra3 c3 Rb3 b7 Ne7 g8R Nbc6 b8B Rh7 d5 Qb6 g5 Na7 g6 Qf2+ Nf3 Ba6 g7 Nac8 Bc4 Qa7 Bd2 Nc6 Nh2 Bb7 Be1 Na5 Nd2 Rb1 Bb3 Bc6 Bd1 Nb7 Ba4 Rd1 Rb1 a1N Nb3 Nc2 Rc1 Kd8 d7 Nd4 Bf2 Rg1 Rd1 Ncd6 Be1 Nf7 Bf2 Ke7 d8B+ Kd7 d6 Be4 Bdh4 Bc2 Be1 Rh8 Bhf2 Kd8 d7 Rf1 Kg3 f4+ Kh4 f3 Bg1 f2 Kh5 Ke7 d8B+ Kd7 Bb6 Bd6 Rc8 Re8 g8B Re6 Re8 Rf6 Re6 Rf5+ Kg6 Rf6+ Kg7 Kc8 Nf3 Kd7 Rh5 Kc8 Nh2 Kd7 Bd2 Re1 Re8 f1Q Rf8 Qf4 Bf2 Rh1 Bde1 Nh8 Bc4 Nf7 Rg8 Nbd8 Bc5 Kc8 Bd5 Qd7 Be6 Kb7 Bg1 Ne2 Bcf2 Nd4 Bd5+ Kb6 Bc4 Bc7 Kf8 Nb7 Rg2 Bd6+ Kg8 Qff5 Nc5 Qf3 Ba2 Qf4 Nb3
3B3b/3RPp1r/1p6/P1knR2b/2N1rr2/R4PRR/p2RB1Np/1qB2K2 b - - 0 1 legal: proof: h4 d5 c4 g5 cxd5 Bh6 hxg5 Bf8 d4 e5 a4 Qf6 d6 Qe7 d5 Qd8 Qd4 exd4 a5 b6 a6 Qd7 Bd2 Qc6 Bc1 Qb7 axb7 a5 b4 a4 Rh4 Nc6 Rh1 Na5 bxa5 Ra7 Rh5 Ra6 Rh1 Ra8 b8R Kd7 e4 c5 g4 h5 g6 h4 g5 c4 f3 d3 g7 h3 g6 c3 e5 a3 e6+ Kd8 e7+ Kd7 Nd2 c2 Ne2 Rh4 Nf4 Rg4 Ng2 Re4+ Be2 Nf6 g8R Bg7 Kf1 Bh8 Nc4 d2 g7 d1R+ Kf2 Rdd4 Kf1 Ne8 Rb7+ Nc7 Rh2 Rf4 Ra7 Rde4 Rh1 Bb7 Rc8 Rb8 g8R h2 Rg3 Ra8 Rg1 Bc6 Rh3 Bb7 Rg8 Bc8 Rg5 Rb8 Re5 a2 Rb1 Ra8 Rb3 Rb8 Ra3 Ra8 Ne1 Rb8 Rgg3 Ra8 Be3 c1Q Rb7 Qb1 Bc1 Ke8 Ng2 Bg4 Ra7 Kd7 Rb7 Bh5 Ra7 Kc8 d7+ Kb8 d6 Nd5 d8B Kc8 Bc7 Kd7 Bd8+ Kc6 d7 Rb8 Bc7 Rf8 d8R Kc5 Rd6 Rg8 Bd8 Rg7 Rad7 Rh7 Ree6 Nc7 Rd2 Nd5 Re5
2R3q1/1P1Bb2B/r2R3p/r4r1n/B1rBkB2/1N1N1bq1/3P2rP/2B2KNn b - - 0 1 legal: proof: c4 b5 a4 e5 axb5 g5 f4 d5 fxe5 Ba6 cxd5 Bb7 Qa4 Bc8 Qf4 gxf4 g4 Ke7 e4 c5 b4 f5 Bb2 a5 e6 Kd6 b6 h6 e5+ Ke7 b5 f3 d6+ Ke8 d7+ Ke7 g5 f4 g6 c4 g7 c3 Bd3 c2 Nh3 a4 Nf2 a3 Nc3 a2 Bh7 Bb7 Ne2 Nf6 Nd3 Ne4 Rg1 Qe8 Rc1 a1R Rg6 Rg8 Ng1 f2+ Ke2 f1R Rf6 Qf7 d8B+ Ke8 e7 Kd7 e8N Be7 Nd6 R8a6 Nf5 Nf2 Nd4 R1a5 Nb3 Nh1 Bc7 Rf3 Bd6 Qc4 Bc5 Rf2+ Ke1 f3 Re6 Rf8 g8B Rf5 Rf6 Rg2 Rd6+ Ke8 Bf2 Nd7 Be6 Nf6 Bd7+ Kf7 Ba3 Be4 Bfc5 Qd5 b7 Nh5 Bd4 Ng7 b8B Nh5 b6 f2+ Ke2 Kg7 b7 Qg8 Rd5 Kf7 Ba4 Ke6 Rd8 Bc6 Rc8 Kd5 e6 Bf6 Re1 c1R e7 Rc4 e8B Be7 Bd7 f1Q+ Ke3 Rgf2 Bf4 Qfg2 Bc1 Q2g6 Re2 Rg2 Kf3 Qg5 Re6 Qh4 Bf2 Qh3+ Ke2 Qhg3 Kf1 Ra8 Bb6 R8a6 Nbc5 Kd4 Rg6 Bf3 Nb3+ Kd5 Rd6+ Ke4 Bd4
1RRq4/2bB4/nb4pP/1K2nB2/1R1p1p2/rq1P2P1/R3N1r1/kN2BqRR b - - 1 2 legal: proof: b4 h5 f4 e5 fxe5 b5 c4 d6 cxb5 h4 a4 h3 a5 Ba6 g3 Be7 b6 Nd7 b5 Bc8 a6 Bb7 axb7 Nb8 Qa4 Bf8 Qe4 Nf6 Qd5 Ng8 Qg2 hxg2 h4 Kd7 e4 Ke6 Ke2 a5 Kd3 c5 Kc4 f5 h5 d5+ Kb3 a4+ Kc3 g6 d3 c4 Bh6 a3 Ra2 Ne7 Kb4 c3 Bd2 f4 Be1 c2 Ne2 g1B h6 c1Q Bg2 Na6+ Ka5 Rg8 b8R Qc2 Rc8 Qb3 Rc1 Bg7 Rd1 Re8 Bh3+ Kf7 e6+ Kf6 Bf5 Ke5 Bc3+ Bd4 Rdg1 Bf6 Be1 Be3 Rb2 a2 Rc2 a1Q+ Ra2 Qb8 b7 Qd8+ b6 Ra7 Bb4 Nc6+ Kb5 Be7 b8R Bd6 e7 Bc7 b7 Beb6 Rc8 Ra8 b8R Ra7 Nec3 Kd4 e5 Ra8 e6 Ne5 Na3 Qf1 Nab1 Nc5 Rb7 Ra3 Rcb8 Na6 Rc8 Rf8 e8B Rf6 e7 Rc6 Bed7 Rc4 Na4 Rc2 e8R Rf2 Nac3 Rg2 Ra1 Ke3 Ne2 d4 Nbc3 Kd2 Nb1+ Kc2 Rbb8 Qf7 Be1 Kb2 Re6 Rc3 Ra4 Ra3 Rb4+ Ka1 Rc6 Qfg8 Rc2 Qb3 Ra2+
1K4N1/1pNqkr2/bNq4p/q7/1p2nb1B/BNR1P1nP/1P2B1R1/1N3r1N b - - 0 2 legal: proof: d3 a5 Bg5 d5 Bc1 e5 c3 d4 c4 Ra6 Nc3 Rd6 Nb1 Rd5 cxd5 Kd7 Bf4 Ke7 Bc1 Ke8 f4 g5 fxg5 e4 dxe4 Qf6 Qb3 Bg4 Bf4 Bf5 Bd6 Bc8 a4 h6 Ba3 c5 Qb4 axb4 Kd2 c4 g4 d3 Ke3 d2 g6 d1R g7 c3 a5 c2 d6 Rd5 a6 Be7 g5 Rd2 h3 c1Q d7+ Kd8 g6 Qb6+ Kf4 f5 Ke5 f4 a7 f3 a8N f2 e3 Rc2 Nf3 Rc7 Be2 f1Q Rh2 Rc4 Nd4 Nf6 g8N Rc2 g7 Qce1 Nb3 Rc1 Rg2 Qa7 Nb6 Nh5 Nf6 Ng3 g8N Qd1 Ng4 Qf3 N8f6 Rf8 Nf2 Na6 Nh1 Rf7 Ke6 Bc5 e5 Bd4 Kd6 Nc5 e6 Qa5 Nc3 Qd3 Rb1 Rd1 Rc1 Rf1 Nb1 Qdb5 Rc2 Qg4 Rc3 Be5+ Kd5 Bf4 e7+ Kc7 e8N+ Kd8 Nc7 Qc6+ Kc4 Ke7 d8B+ Kf8 Kd4 Bf5 Kc4 Bd3+ Kd4 Qe8 Kd5 Ba6 Be7+ Kg7 Bd8 Qg6 Be7 Nce4+ Ke6 Qeb5 Bd8 Qh7 Be7 Qc4+ Kd7 Qc6+ Kc8 Qhf5+ Kb8 Qfd7 Ne8+ Kg8 Bh4 Kf8 Nf6 Ke7 Ng8+
1n1B4/1N2q1P1/1bp3p1/rn4np/N1PkrB1P/1K5B/B1R4p/bRR1B2B b - - 1 2 illegal: Other
2BBbKn1/1bRb2p1/1N1B3N/4P1B1/pbp1r3/1R4R1/1qP1pkP1/B2Br3 b - - 0 1 illegal: No proof kernel
1r2Q3/Q1Qr2r1/2P2rbQ/n2r1P1r/KRkB1R1P/2b4R/1R2q3/4NN2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 dxc5 f5 exf5 Qc7 a4 Qb6 axb5 Qd8 gxh5 a6 b4 Ra7 b6 Nh6 b5 Ra8 b7 Ng8 b6 Nc6 Bb5 Na7 bxa7 axb5 Kd2 Kf7 Kc3 g5 Kb4 e5 b8Q d5 f4 e4 h4 d4 c4 d3 f6 Ke6 f7 g4 h6 d2 h7 g3 Qc7 e3 Ra2 e2 Rh2 e1R Ra1 g2 Bb2 Qe8 Ra4 Re5 Qe1 d1R Nf3 g1R Bd4 Bg7 f8R Rb8 a8Q Ne7 Nbd2 Nc6+ Ka3 Rb6 Nf1 Na5 c6 Ra6 c5 Kd5 Ra2 Bf5 Rb2 Bg6 Rab4 Rf5 Rf7 Qe2 Qaa7 Rh5 Rf6 Rd8 h8Q Rd7 Qd2 Rgg5 Qe8 Bh8 Ne1 Rg7 R4b3 b4+ Ka4 Kc4 Rh3 Rd5 f5 b3 Qh6 Rb6 Re6 Rb8 Re4 Rb6 Rf4 Rd2 Qce7 Rd3 c7 Rf6 c8R Rd7 Ra2 b2 c6 b1R Rb8 Rb5 Qc7 Rbd5 Rb1 Rb3 Rab2 Rb8 Qa7 Rh7 Qd6 Rhg7 Qdc7 Rge7 Rd2 Rfe6 Bc5+ Bd4 Rb7 Rf6 Rdb2 Rg7 R7b6 Qe4 Rb7 Bc3 Bd4 Qe2 R7b4+
1R1q1B2/3pb2Q/P2Bb3/1q2P2B/1b3nNr/5KP1/kbQ3QR/3B1Q1r b - - 0 1 legal: proof: g4 a5 b4 b5 f4 f5 d4 g5 a4 c5 Nc3 e5 gxf5 g4 fxe5 g3 Ne4 g2 Nd2 Na6 dxc5 Nc7 Nc4 Ne6 Nb2 Ng7 bxa5 Qe7 a6 Qd8 a5 Nh5 Na4 Ng3 hxg3 bxa4 Kf2 Ke7 c4 h5 e4 a3 a7 a2 a6 h4 e6 h3 e5 h2 c6 Rh5 c5 Qb6 f6+ Ke8 e7 Kf7 e8B+ Ke6 f7 Rh6 c7 Be7 f8B Qb5 c6 Rh4 Bh5 Bb7 c8Q Nf6 c7 Bd5 Rb1 a1B Ba3 Bb2 Nf3 g1B+ Kg2 Bgc5 Be2 Rb8 a8Q Bb4 Qf1 Ba2 Kf2 Nd5 Bd1 Nf4 Qe4 Bc4 Qh7 Kd5 Qb7+ Kc5 Qbe4 Be6 Ke3 Rb6 c8Q+ Rc6 Qc2+ Kd5 Qcg2 Rc1 Rg1 h1Q Qcc2 Qh3 Rh1 Qg4 Kf2 Qg8 Nh2+ Kd4 Kf3 Kd5 Bg7 Qd8 Ng4 Kd4 Rh2 Kd5 Qcf5 Kd4 Bf8 Kc3 Be2 Kb3 Bd1+ Ka2 Qfc2 Bd2 Bd6 Ba5 Be2 Re1 Bd1 Bb4 Qff2 Rg1 Qff1 Rh1 Qh8 Qa4 Rh3 Bd2 Qe4 Ba1 Rb8 Qb5 Rh2 Bb2 Qhh7 Bb4 Qec2
2n1n1B1/1Q1R2QN/5r2/3P4/1B1QrnPn/Pk6/2N1BpQB/K2bn1b1 b - - 0 1 legal: proof: c4 b5 h4 a5 b4 e5 f4 d5 fxe5 g5 cxd5 a4 hxg5 Bd7 a3 Qf6 Ra2 Qc6 Rb2 Qc2 Rxc2 Bc8 Rc4 bxc4 Qxa4+ Ke7 Qd1 Ke8 d6 Kd7 e4 Kc6 d4 Kb5 Kd2 h5 Kc2 Ka4 Kb2+ Kb5 d7 f5 d8B c5 g6 h4 g7 h3 d5 h2 e6 f4 e5 f3 e7 Nc6 e8Q Bg4 e6 Rh4 e7 Ra6 Qg6 Nf6 g8B Na7 Ka1 Nc8 Ne2 c3 e8Q+ Kc4 b5 c2 b6 Kb3 b7 c4 Bc7 c3 Qee4 Ne8 Bd2 Rf6 b8Q+ Bb4 Qa8 Bc5 Qb7+ Bb6 Rg1 h1N Bh2 Ng3 Qgh7 Nf5 Nd4+ Ka4 Qde2 c1N g3 c2 Bb4 Bc5 Nd2 Nd3 Qh8 c1N Nc2 Be3 Qd4 Ne1 Ne4 Ncd3 Ng5 Kb3 Nh7 Bh5 Rg2 Re4 Qd2 Nh4 Re2 Rg4 Qhg7 Bg1 Re7 Re4 Qg2 f2 Rd7 Bd1 g4 Nf4 Be2
2n1K1n1/Qb2PNPQ/1P1p4/R3BRnb/2rQR3/1rN2Rn1/8/1Qk3b1 b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 e5 fxe5 b4 h4 b3 axb3 Nh6 b4 Ng8 b5 Qf6 Qd3 Qe7 Qd1 Qd8 b4 g5 hxg5 a5 e3 a4 Bc4 Qb6 Bb3 Qa5 bxa5 axb3 Kf2 Ke7 Kf3 Ke6 Kf4 f5 c4 h5 g4 h4 g6 b2 Kg5 f4 g7 d6 Kg6 h3 c6 f3 a6 f2 c5 f1N e4 h2 g5 Nh6 g8Q+ Nf7 b6 Bb7 c7 Nd7 c8R Bc6 a7 Nd2 Qh7 Ba4 c6 Nf1 c7 Bc6 Nh3 Bb7 Ra5 Rb8 a8Q Bg7 Qa7 Re8 Nc3 b1N Qd4 Ng3 Bf4 Na3 Rf1 h1B Rf3 Nb5 Rd8 Rg8 Rf8 Nf6 c8R Rh8 Rc4 Rc8 Rb4 Ng8 Rba4 Nfh6 Rf5 Rc4 Rb4 Nf7 Rba4 Kd7 e6+ Kc6 e7 Bf6 e5 Bg7 Qd3 Kc5 Qb1 Kd4 e8Q Bf6 e6 Be5 Rf1 Bhf3 e7 Bg7 Be5+ Ke3 Qc8 Kd2 Qc5 Bd1 R1f3 Be2 Qa6 Na7 Qcg1 Nc8 Qa7 Rc6 Re4 Rc4 Qb4 Bh6 Qd4+ Kc1 Qb5 Nd8 Qb4 Ne6 Kf7 Bg7 g6 Ng5+ Ke8 Bf6 g7 Bd1 Qg6 Rh7 Nf2 Rh3 Ng4 Be2 Nh6 Bd1 Rfe3 Bf3 Nf7 Bh5 Bf4 Be5 Qh7 Bf6 Qd5 Bd4 Rf3+ Be3 Be5 Bg1 Qb3 Rh2 Qc5 Rb2 Qd4 Rb1 Qa2 Rb3 Qb1+
1k1QN1qb/2p5/5NBP/1N5n/1rr1RB2/Qr1P2NP/1B3p2/1K1B2bb b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 a4 d5 c4 e4 cxd5 b4 a6 e3 a5 Qd6 fxe3 Qd8 e4 Nd7 e5 Nb6 Ra3 Bg4 Rh3 Bxh3 axb6 Bc8 e4 Kd7 e6+ Kd6 h3 g5 a7 f5 e5+ Ke7 d6+ Ke8 d7+ Ke7 b7 b3 b8N b2 h6 f4 Nc3 b1R Nge2 g4 Nb5 g3 Bb2 g2 Ng3 g1B Be2 f3 d3 f2+ Kd2 Ra1 Kc2 Ba6 Qc1 Rh7 Bd1 Ra4 Kb1 Nf6 Qc3 Qc8 Qa3+ Rb4 d8B+ Ke8 e7 Bg7 Nd7 Rb8 a8Q Bh8 Qd5 Nh5 Qa8 Bb7 Nf6+ Kf7 e8B+ Ke6 Bg6 Rf7 Be7 Qg8 Bc5 Rd7 Be3 Rdd4 Bf4 Ke7 e6 Kd8 e7+ Kc8 e8N Rdc4 Rh2 Bh1 Rg2 Rb3 Qd5 Rb6 Qdd6 Kb8 Qd7 Bh2 Rg1 Rb7 Re1 Bg1 Re4 Rb6 Na7 R6b4 Nb5 Qd5 Qd6 Qg8 Qd8+
2n3N1/b1k5/P7/5Qp1/qNq1Bp1B/N2BqNrP/P1n5/1BrQ1R1K b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 d3 c5 Bh3 b5 Nd2 c4 Be6 b4 Bg4 b3 Bh3 b2 Nb1 bxa1Q Bf1 c3 Qd2 Ba6 Qd1 Bc4 dxc4 Bb4 Qd3 Ba3 Qd1 Bf8 Kf2 Kd7 Kg2 f5 e4 g6 h6 c2 a6 Bg7 c5 Qc3 h3 Qc8 d6 Qc4 e6+ Kd8 e5 Qb4 c6 Bf6 d7 Bg7 h7 Qcb7 e7+ Kc7 d8N Nh6 e8N+ Kc8 e6 Qf7 e7 Bf8 c7 Qfc4 Nf3 Qbb5 Bd3 Nd7 Na3 Qba4 Bg5 c1Q Nc6 f4 Bh4 Ng4 Nb4 Qe3 Rf1 Rg8 h8Q Nb6 Qh5 Kd7 Kh1 Nc8 Qa5 Bg7 Bb1+ Bd4 Nf6+ Kd6 Bd3 Ba7 e8B Rb8 Bc6 g5 Nbd5 Rb3 Nb4 Rd8 Qb5 Rb1 Ng8 Rc1 Qf5 Re8 Nd2 Re5 Bce4 Rd5 Be2 Rd3 Nf3 Qd2 Nd4 Rg3 Nf3 Ne3 Bb1 Nc2 Bd3 Ne7 c8B Kc7 Bd7 Nc8 Bc6 Qe3 Bce4
QQRQN1n1/1bP5/NN1P3B/1qpp2P1/nbR3nK/5Qn1/8/3Nk2n b - - 0 1 legal: proof: b4 f5 d4 b5 h4 g5 hxg5 a6 e4 Ra7 exf5 Kf7 a4 Nc6 axb5 Ra8 b6 Rb8 b5 Ke8 d5 Ra8 d6 Nb8 Bd3 c6 Bc4 Ra7 Bd3 Rc7 dxc7 Bg7 b7 Bh6 b6 Bf8 Bb5 axb5 c4 h5 c5 d5 Bd2 Rh6 Bc1 Rd6 cxd6 Be6 Nh3 Bd7 Ng1 Bc8 g4 Kd7 f4 e5 Kf2 c5 Kg3 Kc6 g6 b4 g7 Kb5 f6 Kc4 f5 b3 f7 e4 f6 h4+ Kh3 e3 Qf3 Kd3 Ra8 b2 Na3 b1N Ne2 Qd7 Nc4 Qb5 Nc3 Nd2 Nd1 Nd7 b8Q Ne4 b7 Ng3 Nb6 Ne5 Rh2 Be7 f8Q Bd8 f7 Bg5 Rc2 Bf6 Qh1 e2 Bh6 e1N Rc4 Ke2 Qd8 N1d3 f8Q Nb2 Qf3+ Ke1 Qfe8 Na4 Qf8 Nd7 g5 Bc3 Kg4 h3 Kh4 h2 Qfe8+ Ne7 g8N h1N Nf6 Ne5 Qc6 Ng8 Ne8 Bb2 Qa7 Bd4 b8N Ng4 Na6 Bb7 Rc8 Bc3 Qb8 Bb4 Bg7 Ba8 Qcb7 N4f6 Q7a7 Ng4 Bh6 Bb7 Qaa8
n1b2qn1/Q2R3b/1QNRNP1k/p1pp4/P6n/b5NP/Q1BK2Q1/3N4 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 Ke7 e4 Kf7 exf5 Ke8 c4 b6 c6 Qe7 c5 Qd8 c7 Nh6 c6 Ng8 Ba3 Qf6 Bb4 Qd8 Bc5 bxc5 h4 g5 Qd6 a5 Nc3 g4 Rd1 Ra6 Qd2 Rb6 Ra1 Rb2 Qd1 Rd2 Nb1 Rd6 Bc4 h5 Rh2 Rg6 Be2 Rg5 hxg5 h4 Rh1 h3 Bb5 h2 Bf1 Rh3 gxh3 Qe7 Nc3 Qf6 Nb1 Qd8 a4 Kf7 f4 Kg7 e6 g3 f6+ Kg6 e7 d6 e8Q+ Kh7 f7 g2 g6+ Kg7 f5 Ne7 f6+ Kh6 g7 Ng8 Qde2 Qd7 Qd8 Na6 Kd2 Kh7 Nc3 Ne7 g8Q+ Kh6 Rd1 Bg7 f8N Bh8 Ne6 Bb7 c8Q Bg7 c7 Qe8 Qa8 Qf8 c8N Nc7 Qa7 Na8 Qdb6 Be4 Qg4 Bh7 Nge2 g1N Qf7 Ng8 Ng3 Qe8 Ne7 Qf8 Nc6 Nf3+ Ke2 Nh4 Kd2 Be4 Bd3 Bh7 Rhf1 h1B Bc2 B1e4 Qf3 Bef5 Qg2 Bg4 Ned8 Bc8 Qa2 Kg5 Rf3 Bh6 Rd3 Kg6+ Ke1 Bg5 Ne6 Kh6 R1d2 Bf4 Nd1 Be5 Rd5 Bb2 R2d4 Ba3 Kd2 Bd3 Rg4 Bh7 Rg7 Ba6 Rd7 Bc8 Re5 d5 Rd6 Bb2 Rg5 Ba3 Rg7 Bb2 Rc7 Ba3 Rcd7
2n1QR1k/3ppP2/2nQr3/Bn1R1bp1/1N4PN/R1R3Q1/K3P3/3n2rQ b - - 0 1 illegal: No possible last move
2n2Kn1/R2Qr1n1/Qq1Rq1R1/q4NNq/1b3B1N/k3P3/1P2PrN1/2b3R1 b - - 0 1 illegal: Other
r3N3/B1bP2BQ/N1R1k1B1/2b5/1r2bPN1/q1q2QPn/5N1q/b2B1Kn1 b - - 0 1 legal: proof: a4 d5 c4 f5 cxd5 b5 axb5 f4 f3 Bh3 e3 Bg4 exf4 Bc8 b4 h5 Qe2 g5 Ra2 g4 Qd1 h4 Ra6 h3 Re6 Qd6 Re2 Qd7 fxg4 Qd6 g3 Qd8 Rg2 hxg2 d4 Kd7 h4 c5 d6 a5 h5 e5 b6 e4 d5 a4 h6 c4 b5 c3 b7 a3 h7 c2 g5 a2 g6 a1Q b6 e3 g7 e2 Rh6 Be7 Nc3 Nf6 g8B Qb2 Bf7 Ne8 Nf3 g1Q Ne4 Qa1 Nh2 Qc7 Nf2 Nc6 b8B Ne5 b7 Nf6 Bg6 Ne4 Nhg4 Qh2 Ba7 Qa3 Bb2 c1B Bh3 Rd8 h8Q Ng5 Qh7 Qc6 Bg2 Nh3 Bf3 Rh8 Bbd4 Bb2 Qd3 Ba1 b8N+ Kd8 d7 Bb7 Bc3 Bc5 Na6 Rg8 Bb2 Rg7 Qb3 Ke7 d8N Qf6 d6+ Kd7 Qc4 Be4 Nb7 Rf7 Qd4 Ke6 Qd1 Rff8 d7 Rfb8 Nd6 Rb4 Ne8 Qg7 Kd2 e1B+ Ke2 Qh8 Kf1 Bc3 Be2 Nf3 Qd3 Be5 Bd1 Nfg1 Qf3 Bc7 Bc3 Qd4 Bb2 Qd2 Bg7 Qdc3 Bf5+ Ke7 Rc6 Kf7 Bg6+ Ke7 Nd6 Ke6 Ne8+
rrQ2b1N/2BNnNr1/kB1n3n/Nqn3n1/7R/P1qP2QP/4B2K/2B5 b - - 0 1 legal: proof: f4 d5 e4 f5 exf5 a5 c4 h5 cxd5 a4 g4 a3 bxa3 Ra6 f6 Rd6 g5 Nc6 f5 Be6 g6 Bf7 gxf7+ Kd7 a4 Nb8 a5 Ra6 a3 Rh6 Ra2 Rh8 Rc2 Ra7 Rc4 Ra8 Rg4 hxg4 Kf2 Kc8 Kg2 e5 h3 b5 a6 c5 a7 Kb7 d6 g5 d3 g3 d7 b4 Qc2 e4 Qd2 g4 Bb2 c4 Be5 e3 Bd6 e2 Qe1 b3 Nf3 c3 Ng5 c2 Rg1 c1N Bc7 b2 Nd2 b1N Nb3 Qe8 d8B Nd2 Na5+ Ka6 Bb6 Qa4 Bdc7 Qb5 Qf2 e1Q Be2 Nc4 Qf3 Bb4 f8B Nh6 f7 Qc3 f6 Nd6 Bg7 Rg8 f8N Nc6 f7 Ne7 Ng6 Nb3 f8N Nc5 Nd7 Rgb8 Kh1 g2+ Kh2 Ne8 Re1 g1N Nf7 Nd6 Ngh8 g3+ Kg2 Qd2 Bb2 Qc3 Qf2 Nf3 Bc1 Ng5 Kg1 g2 Kh2 g1R Qg3 Ndf5 Rf1 Nd6 Rf4 Rf1 Rg4 Rf6 Rf4 Rg6 Rh4 Rg7 Bh5 Nc6 Re4 Nb3 Be2 Nc8 Bf2 Bf8 Rh4 N6e7 Bd8 Nd6 Bg1 Rb7 Bd4 Rc8 a8Q+ Ra7 B4b6 Nc5 Qc6 Rb8 Qc8+ Ncb7 Bdc7 Raa8 Qd8 Nc5 Qc8+
B1Qn1kb1/Nr1QQq2/b2Qrn1p/n3N3/1B1b4/2B2B1P/q1P1PR2/6K1 b - - 0 1 illegal: No possible last move
1Q1Nn2R/3BB3/1qR2p2/P1n1b3/qP5K/2BBP2R/1q2rk1R/2Q1b1rr b - - 0 1 illegal: No possible last move
1KQq1n2/1bNN2kN/Rq2P1P1/3n1QQN/1R6/b2Bp2q/P6Q/rn3r2 b - - 0 1 legal: proof: d4 d5 h4 g5 hxg5 a5 c4 a4 cxd5 a3 bxa3 Nh6 a4 Ng8 a5 Bh3 Na3 Bd7 Nb1 Bc8 e4 Kd7 d6 f6 e5 Bg7 d5 Bf8 Bb2 Nc6 dxe7 Nb8 e6+ Kd6 Be5+ fxe5 Kd2 b5 Kc3 c5 e8N+ Ke7 g4 h5 f4 e4 a6 c4 Kb4 h4 Kc5 c3 g6 c2 a7 c1N g7 h3 f5 h2 g5 e3 g6 b4 Qg4 b3 Nd2 b2 Bd3 b1Q Ndf3 Rh7 Ne5 Nh6 g8Q Nf7 Nd7 Bb7 Qh8 Qb2 Ne2 Qf6 Nf4 Bc6 Nh5 Ne2 Rhd1 h1Q Rab1 Nc3 Nc7 Nd6 Kb6 Nde4 Rb4 Nb1 Qh3 Qb2 f6+ Kd6 f7 Ke7 Qf5 Bb7 Qhe5 Qh3 Qh2 Nf6 Rc1 Rh8 Rc6 Rh6 Ng7 Rh4 Nh5 Rg4 Rd6 Rg1 Rc6 Na6 Rd6 Nh7 Rc6 Rc8 a8Q Rf1 Ka7 Rb8 Rf4 Nb4 Ra6 Bg7 f8N Qb3 Nb5 Bb2 d6+ Ke8 Rd4 Nd5 Rb4 Rc8 Qb8 Rcc1 Qc8 Ba3 Kb8 Qb2 Ne5 Qd4 d7+ Ke7 Nc7 Qb6 Bb5 Nhf6 Nh7 Rcd1 Ng5 Kf8 Bd3 Kg8 Be4 Nh7 Bd3 Nf8 Nh7 Qf6 d8Q Rde1 Qd6 Qd8 Nd7 Rd1 Qdf4 Rc1 N5f6+ Kg7 Q4e5 Nbc3 Qeg3 Ra1 Qgg5 Nb1 Nh5+
1BrnQ1K1/bq1b2p1/Br4Q1/PB3P2/1B6/2RNQ1PQ/1rq1Rn2/3k3n b - - 0 1 legal: proof: c4 c5 e4 a5 d4 d5 cxd5 h5 dxc5 f5 exf5 a4 Nd2 a3 Ne4 h4 Ng3 Qd7 bxa3 Qd6 a4 Qd8 a5 Bd7 Nh5 Bc8 g3 h3 Nf4 Nf6 Ng2 hxg2 Qb3 Ng8 Qf3 Kf7 Qd1 Ke8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 a4 Ke4 f4 e5 h4 b6 f6 Qc7 f5 Nc6 h5 Rh6 d6 Rh8 a6 Rh7 a5 Rh6 f7 Nge7 d7 Nd4 d8Q Nd5 c6 Qb7 a7 Nb4 c7 Bc5 f8B Ndc6 Q1d2 Nd3 Qe8 Nd8 Ra2 Bd7 c8B Nf2 Nf3 g1N Qg6 Ngh3 Ne1 Be3 Rh2 Nh1 Rc2 N3f2 Nd3 Kf3 Rc3 e4 Bb4 Bd4 Qe1 e3 Bb2 Rb8 a8Q e2 B2a3 Rh8 h6 Re8 Qd2 e1Q h7 Qb1 h8Q Qc2 Qh3 Re6 Qe1 Rc6+ Kd5 b5 Bd6 Ba7 Bab4 Ra6+ Ke5 Rb6 Be2+ Ke3 Qg1 Kd2 Rg2 Qf3 Ba6 Rc8 Bb8 Qb7 Bf1 Kd1 Rh2 Ne4 Qe3 Nef2 Rg2 Ne4 Re2 Nef2 Bf8 b4 Bc5 b3 Bb4 Nc6+ Kd6 Nd8+ Ke7 b2 Kf8 b1R Kg8 Qc7 Qae4 Qb7 Qee8 Rb3 Bg2 Rb1 Bc6 Rb2 Bcb5
3N4/QnN1PP1p/8/3bPr2/qn1Q1R2/2nRR1RK/rkN5/rBb1r2N b - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 f5 e4 d5 cxd5 e5 a4 f4 axb5 Qd6 d4 Qe7 dxe5 Qd8 Be3 fxe3 b4 Kf7 g4 c5 f4 a5 e6+ Kg6 e7 e2 Kf2 e1R Kg3 a4 b6 c4 f5+ Kf7 b5 a3 f6 c3 g6+ Ke8 e5 Kd7 b7 a2 f7 c2 d6 Ke6 d7 c1R g5 Ra6 b6 Qe8 d8N+ Kf5 g7 Ke4 g6 Bh3 Na3 Bc8 Rh3 Be6 Bd3+ Kd4 Bb1+ Kc3 Qd4+ Kb3 Ne2 Nf6 g8R Qa4 Nc2 Bh6 g7 Nc6 b8Q Bd5 b7 Na5 Qba7 Ne4+ Kg2+ Be3 b8N Rf6 Na6 Rf5 Ng3 Nb7 Nh1 Nc3+ Kh2 Bg5 Re3 Kb2 Kh3 Rcd1 Rd3 Bc1 Re3 Rd2 Rf8 Rdf2 g8R Rfe2 Rg6 Rg8 Rf6 Rgg1 Nc7 Ref1 Rg8 Bd2 Na3 R5f3+ Kh4 Kb3 Bd3 Reg2 Rc1 a1N Rce1 Nc2 Rd1 Nb4 Rg3 R3f2 Rfg6 Rf5 R6g4 Re2 Rf4 Ref2 Rc1 Rfg2 Rc2 Ra1 Kh3 Bc1 Rd2 Re1 Bb1 Rf2 Rd1 Rfa2 Nc2 Kb2 Rdd3
n7/B1Q2r2/2BPR1r1/1KPQN3/B1rrN1k1/1b2Q3/2PQqp2/B1q2b1n b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 d5 d4 Bd7 dxc5 d4 e3 Bc8 b4 h5 g4 d3 g6 Bg7 g5 Bd4 exd4 Nc6 Ra6 Nb8 Re6 Nf6 Re4 Ng8 Rg4 hxg4 Kd2 Kd7 Kc3 Ke6 Kc4 Kf5 h4 a5 b6 e5 d5 d2 g7 a4 h5 e4 b5 a3 d6 a2 h6 a1R b7 e3 b6 e2 g6 e1Q h7 g3 Kb5 g2 Nf3 g1R Nc3 Be6 Rh2 Na6 b8B Ra4 b7 Kg4 Qe2 d1B Bf4 f5 Qf2 Nh6 g8B Bb3 g7 Qg5 Qe3 Ra7 Be5 f4 Bg2 Nf5 Ne4 Rc4 Ba1 Qe2 Rh6 Ng3 Re6 Nh1 Bf7 Rf8 Be8 Rf7 g8Q Ra8 h8Q Nc7+ Kc6 Ra2 Ba7 Na8 b8Q Raa4 Qh2 Rd4 Qb7 Rac4 Qgh7 Qh6 Kb5 Qg5 Qd5 Qh6 Ne1 f3 Nd3 Qf4 Q2h6 f2 Bd7 Qe1 Qd2 Be2 Be8 Qf3 Qhe3 Bf1 Bd7 Qc1 Be8 Rf6 Qc7 Rf7 Bc6 Qe2 Ne5+ Kh4 Bh3 Rg3 Re7 Kh5 Bhd7 Rg6 Re6 Kh4 Ka6 Kh5 Ba4 Kh4 Bdc6 Kh5 Kb5 Kh4 Nd3 Kg4 Ne5+
n3R1B1/1k3Q2/2bP1R1P/n1qq4/1N2QBp1/4QqBn/1K1bPB2/Q3r1b1 b - - 0 1 legal: proof: f4 b5 c4 d5 cxd5 h5 g4 a5 a4 e5 axb5 Ra6 Nc3 Re6 Ne4 f5 fxe5 f4 Nf2 Rc6 Nfh3 Rf6 Nf2 Rf5 gxf5 Nf6 Ng4 hxg4 Ra3 Ng8 Ra4 Qg5 Ra1 Qd8 b4 Kd7 d4 g5 Kd2 c5 Kc3 Kc7 h4 f3 h5 a4 h6 f2 b6+ Kb7 e6 g3 f6 c4 d6 g2 e7 a3 e8Q g4 b5 a2 d5 Na6 f7 Nb8 d7 Na6 Qe3 Nb4 Nh3 g1Q Kb2 Nf6 Nf4 Rh7 Bg2 f1Q Nd3 Na6 Nb4 Bc5 f8Q Qf3 Qf7 Nc7 d6 Qg8 d8B Nh5 Bh4 Bd7 Bg3 Nf4 Qc2 Be8 Qce4+ Bc6 Rb1 Qgf2 Rf1 a1N Bh1 Nb3 Bd2 Kb8 b7 Nh3 Bc1 Ka7 b8B+ Kb7 b6 Na5 Ba7 Rg7 Ra1 Rg6 Ra3 Rf6 Rd3 Qa8 Rd5 Qg1 Re5 Qg8 Re8 c3+ Ka1 c2 Kb2 Rf5 Rf2 Rd5 Rf1 Rd1 Bd2 Qfg2 Rf6 c1B+ Kc2 Qg5 Qf2 Q2f1 Qe1 Nf4 Qh5 Ng6 Qd4 Qgf2 Bd5 Nf4 Bg8 Qd5 Qf7 Nh3 Qe4 Q2g1 Be3 Bd2 Kb2 Qf3 Bef4 Ra1 Qd1 Rc1 Qa4 Re1 Qa1 Qge3 Nd3 Ka6 b7 Na8 b8Q Qef2 Qb3 Qfd4+ Qc3 Q4c4 Bb6 Bg1 Bbf2 Qcc5 Qcd4 Kb6 Qde3 Ka6 Nb4+ Kb6 Qfg6 Kb7 Qf7+
3Q3b/N1P2nB1/2R1RQ1q/Q1n1B1kq/n1QK1b2/Bb2Pp2/1P4q1/2r2B2 b - - 0 1 illegal: No possible last move, all moves rejected
R3b1QN/PP1BKBrp/4nPr1/2Qk2BB/3b4/5N1r/1rN2q2/2N1b2r b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 h4 f5 c4 g5 hxg5 b4 e4 Nc6 exf5 Na7 Rh4 Nb5 cxb5 Bb7 Rc4 dxc4 Ra3 Qb8 Rh3 Qd8 Rh1 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 f4 e5 g4 b3 d4 c3 d5 c4 b6 c2 a6 b2 g6 c3 f6 Qe7 a5 Qb7 g7 Nh6 g8Q Qe7 a7 Qc7 g5 Bg4 f5 Qc8 g6 Nf7 a6 Kc5 d6 Bh3 d7 Qc6+ Qd5+ Kb4 d8N Qc8 g7 Bg4 Qc5+ Kb3 Kd5 e4 Nb7 e3 Na3 b1R Nf3 e2 Bh3 e1B Bg5 c1R Nc2 Nd8 f7 Ne6 f6 Rb2 Rg1 Bd6 f8N Be5 Ng6 Bd4 Kd6 Bh5 Ke7 Rd1 Rg4 Rd3 Rf4 Rb8 a8B Qc6 a7 Qe4 Rg4 Qe3 Re4 Qf2 Re5 Rc8 Rd5 Rc7+ Rd7 Re3 Na5+ Ka4 Nb3 Rd3 Qd8 Rg8 Nh8 Be8 Nc1 Re3 Be4 Rd3 b7 Re3 Ne2 Kb3 Bg6 Rd3 Bh5 Re3 Na3 c2 B3g4 c1R Nc2 Ba5 Bf5 Rh1 Qc8 Be1 Qb8 Rf8 g8B Rd3 Bgf7 Rg8 Qd8 Rg6 Nc1+ Ka4 Qd6 Kb5 Qa8 Kc4 Bfg4 Rc5 Rd8 Rf5 Qb6 Rdb3 Rc8+ Kd5 Qb8 Rg7 Qg3 Rf4 Ra8 Rg6 Bh3 Rg4 Qc5+ Ke4 Bf1 Rh6 Bh4 Nd8 Bb5 Ne6 Nh2 Ra3 Qg1 Rh3 Nf3 Rg8 Qg7 Rg6 Qf8 R8g7 Bd7 Qg1 Bg5 Qf2 Qc7 Kd5 Qg8 Qg2 Qc3 Qf2 Qc5+
N1b5/p3R2Q/6P1/b2rRQq1/kb1n1rRP/b1RKB3/1PB3bq/1B2B3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 Qd7 a4 Qd6 axb5 Qd8 e4 Kd7 d4 g5 fxg5 Bh6 d6 Ke6 d7 Bf8 d5+ Kd6 g4 Ke5 g6 Kf6 d6 Kg7 Nd2 Na6 Ndf3 Nb4 Ng5 Nd5 exd5 Rb8 N5h3 Ra8 g5 h6 Nf2 h5 Ng4 hxg4 Kd2 e5 h4 c5 b6 f5 b7 g3 b8R e4 Qh5 f4 Ra5 c4 Nf3 g2 Bd3 g1Q Nd4 f3 Rb3 f2 Nb5 f1B Bc2 Nh6 Nc7 e3+ Kc3 e2 Be3 Qf2 Rg1 Nf5 Rg4 Qh2 Kd2 c3+ Kd3 Qf6 d8Q Bg2 d7 e1B d6 Nd4 Re5 Be7 Qe8 Rf8 d8R Qff4 d7 Ba3 Bb1 c2 Qe6 c1B Qf5 Ba5 Rde8 Bcd2 d8B Bdb4 R8e7+ Rf7 Bc2 Kf8 Qh7 Rb8 Na8 Rb5 Bb6 Rd5 Bf2 Rf6 Be1 Rf7 R7e6 Rf6 g7+ Kf7 g8B+ Kf8 g6 Qg5 Bd8 Rf7 Be7+ Ke8 Bc5+ Kd7 Re7+ Kc6 Bb6 Kb5 Bb1 Ka4 Bc5 Nb5+ Bd4 Rc5 Be3 Rf6 Bd5 Nd4 Bf3 Rd5 Bd1 Rf7 Bdc2 Rf8 Qe4 Rf1 Qf5 Rf4 Rc3+
K1R5/Q2n1r2/5p2/PQq1b3/P6N/NR1qR1PR/2n4B/qrNknN1n b - - 0 1 legal: proof: c4 a5 f4 d5 cxd5 e5 fxe5 g6 b4 Be6 bxa5 Bc8 e3 Qd6 h3 Qd8 Bd3 Bg4 Bf5 gxf5 hxg4 Bh6 Rh4 Bg7 Rh1 Bf8 d4 Ke7 Ke2 b5 Kd3 h5 a4 c5 e6 Kd6 g5 h4 e7 f6 e8R b4 Kc4 b3 Kb5 f4 g6 h3 g7 h2 e4 f3 e5+ Kd7 e6+ Kd6 e7 f2 Qd3 f1Q Ra3 c4 Bf4+ Kd7 d6 Ke6 d7 Kd5 Ne2 b2 Nd2 b1N Rb3 Qc8 Kb6 Nh6 g8N Ra7 d8Q+ Qd7 Bd6 c3 Qc7 Ng4 Nh6 c2 Nf5 c1Q Qa6 Rg8 Nh4 Na3 Bg3 Nf2 Qb5+ Ke6 Rc8 Nd3 e8N Bd6 Qcc5 Bf4 d5+ Ke5 Nd6 Qf5 Qf2 Qa1 Qg1 Qfd1 Rcc3 Re8 Nf1 Rf7 Nc4+ Ke4 d6 Nc2 d7 Qh5 d8R Nd7+ Ka7 Qg5 Qgb6 Qc5 Ka8 Bb8 Rg1 h1N Bh2 Bc7 Na3 Ree7 Nfg3+ Ke3 Rc8 Kd2 Re1 Re4 Qa7 Be5 Nc1 Rb4 Rb2 Qf3+ Re4 Qe2 Nf1+ Kd1 Rb1 Nde1 Rh3 Qd3 g3 Rb2 Re3 Rb4 Rb2 Rb3 Ra2 Rb1 Rb2 Bc3 Rb4 Be5 Rb3
5bQ1/1bKnRrrr/1r4Pp/kP2Rr1N/1P1N4/1Q1R1q2/Q1QrR3/7B b - - 0 1 illegal: No possible last move, all moves rejected
3N1N1R/K1Qnp1b1/2Q1P3/3R2P1/1q2Rb2/P1Q1nb1Q/n3kBbb/5Rn1 b - - 0 1 legal: proof: g4 h5 b4 d5 f4 g5 h4 a5 bxa5 b5 e4 f5 gxf5 g4 c4 Bg7 f6 Rh7 e5 Bf8 f5 Rg7 Bg2 Rg5 Be4 dxe4 hxg5 Ra6 Ba3 Rd6 Bc1 Rd5 cxd5 Qd7 Ke2 Qd6 Ke1 Qd8 Kf2 Kd7 Ke3 c5 d4 c4 e6+ Kd6 a3 c3 a6 h4 f7 h3 f6 c2 a7 g3 a8Q g2 Qg4 h2 Qh3 b4 Nc3 b3 Na4 b2 Nb6 b1B Ne2 g1N Nd7 Nf3 Rf1 Bg7 f8Q h1N f7 Nh6 Qh8 Ng1 f8R Bb7 Re8 Qb6 Nf8 Nd7 Bb2 Ba2 Rae1 Ng3 Bc3 Kc7 d6+ Kc6 Rd8 Qb4 d5+ Kc5 Nd4 Kc4 Nc6 Bb1 Bd4 N3e2 Re8 Nc3 Nd8 Na2 Re2 Nb6 d7 Bc6 d6 Ng4+ Kf4 Bd5 Bf2 e3 Qc6+ Kd3+ Kf5 c1B Ree1 Nf6 Ke5 Bg2 Re2 Nbd5 Ree1 Qb7 Re2 Bf3 Ree1 Kd2 Kd4 Bbe4 Kc5 Bg2 Re2+ Kd3 Ree1 Bef3 Re2 Qb2 Ree1 Qc3+ Kb5 e2 Ka6 Qb4 Ka7 Bh6 Qg7 Bf4 Qh8 Ng4 Qa1 Ne5 Qac1 Bg7 Q1c3+ Ke4 Nh7 Bh2 Rh8 Kf4 Nf8 Ne3 Rd1 e1B Rd5 Bd2 Rd4+ Be4 Rd5 Bg3 Rd4 Kf3 Rc4 Bd5 Re4 Ke2 Nb7 Qb2 d8R Bh2 d7 Qb4 Rd4 Bdf3 Re4 Bc1 Rb8 Bd2 d8Q Nd7 Qdc7 Bc1 Nd8 Bd2 Rg4 Nc2 Rb5 Be3+ Rd4 Bef4 Rbd5 Ne3 Re4
n3R1BQ/1Pr3Q1/6p1/P6n/1q1Q2K1/B2k2p1/qR1P1q2/BbbNB1Qr b - - 0 1 legal: proof: e4 d5 exd5 a5 c4 b5 cxb5 f5 b4 h6 bxa5 f4 Nc3 f3 Ne4 Rh7 Ng5 hxg5 gxf3 g4 f4 Rh5 f5 Rh8 Ke2 Kf7 f4 Kf6 a4 c5 h4 e5 a6 g6 a7 e4 d6 e3 b6 c4 b7 g3 Kf3 e2 d7 e1Q h5 c3 a5 c2 h6 Rh7 Rb1 Re7 h7 Na6 h8B+ Bg7 Rb2 Nc5 Nh3 Qe6 Bc4 Qe1 Kg4 Qe8 d8Q Qf1 Nf2 Qb5 Be6 Rb8 a8Q Qb4 Rh4 Qg2 Qg1 Nd7 Nd1 Qf2 Bb3 Nb6 Qd4+ Re5 Bf7 Bd7 Rh5 Rc8 Be6 Rc7 Rh4 Ne7 Bg8 Ned5 Qb8 Na8 Rh2 Qe1 Re2 Qf2 Re1 Bb5 Qe8 Bd3 Qc8 Ke7 f6+ Kd6 f7 Rh5 f5 Rh1 f8Q+ Kc6 f6 Kb5 f7 Nf4 Re7 Nh5 Re8 Bf6 Qg7 Be4 Qa7 Kc4 f8B+ Kd3 Bc5 Bd4 Ra2 Bc3 Ba3 c1Q Rb2 Qb1 Qb6 Qa2 Bd4 Qff8 Bf2 Be5 Be1 Qf2 Rc2 Bb2 Qbd4+ Ke2 Qcd8 Bc1 Rb2 Qff7 Qf8 Qf2 Be5 Bd3 Qg7 Bb1 Qdf6 Qa4 Qh8 Qb4 Qfg7 Qg2 Rc2 Nf4 Qdf2+ Kd3 Ba1 Nh5+ Qf4 Qh2 Rb2 Qf2 Qfd4+
2n1Q1r1/3PBn2/3Qn2q/2r2B2/p1PbKBR1/P3n1Q1/Bp3R2/k1QN1b2 b - - 0 1 legal: proof: e4 f5 exf5 c5 c3 d5 b3 c4 bxc4 d4 cxd4 Be6 Bb2 Bd7 Bc1 Bc8 g4 h5 f4 g6 g5 Bh6 Nc3 Bg7 Ne4 Bh6 Nf2 Bg7 fxg6 Bh6 f5 Bf8 Ng4 hxg4 Kf2 Kd7 Ke3 Kc6 h4 b5 h5 e5 d5+ Kc5 d4+ Kb4 h6 Kc3 g7 a5 a3 a4 d6 b4 d7 b3 f6 b2 d5 g3 h7 e4 f7 g2 g6 Be7 f8Q Nh6 g8Q Ra5 g7 Bf6 d6 Nc6 Nh3 g1N Nf2 Rc5 Rh2 Ne7 Bh3 Nf3 Bf5 Qb6 d8B Ng5 d7 Bd4+ Kf4 e3 Rg2 e2 Rg4 Ne6+ Ke4 e1N Bf4 Ba6 Qc1+ Kb3 Nd1 Nc8 Qd6 Nf7 Be7 Ng2 Qe8 Rg8 h8Q Bb5 Qh3+ Ne3 Rb1 Ka2 Qg3 Rh8 g8B Bc6+ Kd3 Bg2 Bgh7 Bf1+ Ke4 Rg8 Qd2 Nc2 Rc1 Nb4 Rc2 Nd5 Qc1 Ne3 Rf2 Qa6 Kf3 Qb6 Bb1+ Ka1 Ke4 Qa5 Bf5 Qd2 Rf3 Qh2 Rf2 Qh6 Ba2+
N1BR4/KRknQ3/1pr1r1r1/1q4nQ/3qP1N1/R1N1Rnp1/PN2b2P/8 b - - 0 1 illegal: No possible last move
1K6/RR3pP1/N2N3r/Q1PQN3/n1b1P2r/qRp4k/1q1Rr3/n1qB1N2 b - - 0 1 legal: proof: c4 c5 h4 b5 b4 e5 f4 d5 fxe5 g5 hxg5 d4 Ba3 Bd6 Bb2 Bc7 a3 Ba5 Bc3 dxc3 bxc5 b4 Nf3 b3 Ng1 Bb4 axb4 Qc7 Qc1 Qe7 Qd1 Qd8 Kf2 Ke7 Kf3 Ke6 Kf4 a5 d4 h5 e4 b2 g4 a4 g6 a3 b5 h4 c6 a2 b6 h3 b7 h2 c5 Qc7 g7 Nd7 b8R Rh4 d5+ Ke7 d6+ Ke6 Rb3 Ra6 Nd2 b1Q Ngf3 Qd8 c7 Rb6 Be2 Rh8 g5 Rb8 g6 Rb4 Nf1 Ba6 c8N Nh6 g8R Rb5 g7 Qb6 Rd8 Ng4 Qd3 Rh6 Bd1 Qb7 Qd2 Nb6 d7 Qb8 Nd6 Na4 Qd5+ Ke7 e6 Kf6 e7 Ne3 Ne5 Qc1 Rab1 a1Q R1b2 Qa3 e8N+ Ke7 Rd2 Nc2 Nc7 Kf6 Rf8 Qb6 Ra8 Na1 Ra7 Qb8 Rg1 h1R Rb7 Rb4 Ra7 Bc4 Na6 R1h2 Rb7 Re2 Ra7 Rb7 d8Q+ Re7 Qc7 Re8 Qa5 Reh8 Rg2 Re3 Rdb2 Qb7 Rgd2 Re2 Rb1 Qb8 Rbb7 R8h7 R1b3 Rh8 Kg3 Kg5 Kf3 Kh4 Kf4 Kh3 Kf5 Rh4 Kf6 Qa8 Ke7 R8h6 Kd7 Qd8+ Kc6 Qb6+ Kd7 Qbb4 Kc8 Qab2 Kc7 Q4a3 Kb8
1Q5N/PpB1N2Q/PK1Rb1r1/1n1q1qrk/1b3Qb1/5pq1/N3N2P/RQ6 b - - 0 1 legal: proof: c4 a5 b4 d5 bxa5 h5 cxd5 h4 d6 e6 d7+ Ke7 g3 Kd6 gxh4 Ke7 h5 Ra6 Nc3 Ra7 Nb1 Ra8 d4 Kd6 f4 Qe8 e4 Ne7 d5 Ra6 e5+ Kc5 d6 Ng8 Bg2 Qd8 Be4 Nc6 Bd5 exd5 e6 Ne5 fxe5 Kc6 Qg4 Ra7 Qd1 Ra8 Kd2 g5 Kc3 f5 Kd4 g4 a4 f4 h6 g3 e7 g2 e8N Ne7 h7 Ra6 e6 Rg8 h8Q Rg5 Ne2 g1Q+ Be3 f3 Nf6 Qg3 Qh7 Rb6 a6 Nf5+ Kc3 d4+ Kc4 d3 a7 d2 e7 Nd4 e8Q Nb5 a5 Be7 a6 Bf8 Qf1 d1B Ng8 Bb3+ Kb4 Kd5 Ka5 c5 Bf4 c4 Qe3 Qf6 d8N c3 d7 c2 Nf7 c1Q Bc7 Qc4 Qf4 Ke6 d8Q Qd5 Nh8 Qff5 Ne7 Kf6 Nbc3 Bd7 Qb8 Re6 Nc6 Bb4+ Kb6 Rd6 Qb1 Bc8 Qhh4 Kg7 Qh5 Rdg6 Rd1 Be6 Na2 Bc4 Qhg4 Kh6 Ne7 Bb3 Qfe4 Bc4 Qgf4 Kh5 Nd4 Bf1 Ne2 Bh3 Rd3 Bg4 Rd2 Qd7 Rd6 Qd5 Qef5 Qc8 Qf7 Qf8 Qg7 Qff5 Qh7+
3B1Qb1/B6Q/2b4r/1pQbnp2/1rBKRPn1/1r2RPN1/nkPB4/6Q1 b - - 0 1 legal: proof: d4 h5 f4 c5 b4 a6 g4 e6 gxh5 Qg5 Nc3 Qg2 Nb5 Qf3 exf3 axb5 dxc5 Bd6 Qe2 Bc7 Qd1 Ba5 bxa5 b4 Kd2 Ke7 Ke3 f5 a4 g5 h4 d5 a6 b5 c6 Kd6 a7 Kc5 c7 e5 h6 g4 h5 b3 a5 Kb4 a6 Kc3 h7 d4+ Kf2 b2 h6 b1B Bg2 g3+ Ke2 d3+ Ke3 d2 Nh3 e4 Nf2 Ba2 Re1 Bb7 c8Q+ Nc6 Nh1 Bd5 Ra4 Nf6 Bf1 g2 Ng3 g1N Bc4 Ne5 Qc5 Bbc6 Re2 Rac8 a8Q Bg8 Re1 Ne2 a7 Rd8 Qb8 Rd4 a8Q Bgd5 Qba7 Bg8 Ba3 Nc1 Bb4+ Kb2 Qaf8 Na2 Re2 Bgd5 Qg1 d1B Bd2 Bg8 Re1 Be2 Qae7 Rd8 Qd7 Nfg4+ Kd4 e3 Ra3 Bf1 Rc3 e2 Re3 Ra8 Qde7 Ra3 Qb7 Bgd5 Qbe7 Rg8 h8B Rg6 h7 Rb3 Bf6 Rh6 h8B Rb4 Qh7 Bg8 Rc1 e1R Bd8 Bd3 Re4 Re3 Re1 Bf1 Bhf6 Reb3 Bb6 Be2 Bfd8 Bd3 R4e3 Bde4 Ba7 Bed5 Re4 Bde6 R1e2 Bed5 R2e3
3k4/1Q1QN3/3r4/pB2nPP1/qrPnpB2/1n5K/1NR1Q1NQ/q2n2bN b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 g4 Kf7 f4 Ba6 b4 Qa5 f5 Bg7 Ra3 Bb7 Rf3 Ke8 Rf4 gxf4 h3 Bf3 g5 Bg4 hxg4 Bf8 Rh4 Qc7 Rh1 Qd8 Kf2 e5 Kg2 h5 b6 a5 b5 d5 f7+ Ke7 b7 h4 c6 e4 b6 f3+ Kh3 d4 c7 d3 c8Q f2 g6 d2 g7 Rh5 g5 Qc7 Ne2 Qd6 Na3 Qd4 Nc4 Nh6 Nb2 Ng4 Ng3 Qa4 Bb5 f1N c4 Nc6 b8Q Rh6 b7 Nd4 Qe2 d1N Bf4 Nd2 Rh2 Rd6 Nh1 Ne5 Qa7 N2b3 b8Q+ Rd7 Qbc7 Rb8 Rg2 Rb6 Q8b7 Rd6 Qcb8 Rb6 Qd6+ Kd8 g8N Bg7 Qh6 Rdd6 f8N Bf6 Ng6 Be7 Ba6 Rb4 Bb5 Bf6 N8e7 Bh8 Kh2 h3 Nh4 Bg7 Kg3 h2 Kh3 Bh8 Qf1 Bg7 Rc2 Bh8 Ng2 Bg7 Nf2 Bf6 Qe2 h1Q+ Bh2 Qe1 Bf4 Bh8 Nh1 Qc3+ Nd3 Qca1 Nb2 Ndc6 Kg3 Nf7 Qba6 Bd4 Qh2 Bg1 Kh3 Ncd4 Qc6 Ne5 Qab7 Rd5 Qe6 Rd6 Qed7+
2Rb2Qn/N2R1N1b/2pr2nN/1PnQ1qpP/2K1Nq2/3nk3/P4R2/B4R2 b - - 0 1 legal: proof: e4 d5 b4 b5 g4 f5 exf5 a5 bxa5 h5 gxh5 b4 c4 Ra6 Bd3 Rb6 Be2 Rb5 cxb5 Bd7 Bf1 Bc8 Bc4 dxc4 Ke2 Kd7 h4 Kd6 d4 Kd5 f4 Ke4 f6 g5 h6 e5 f7 b3 a6 c3 d5 c2 f5 b2 d6 Be6 f6 Qc8 d7 Bh3 d8N Nc6 h5 Qf5 a7 Bg2 a8R Bb4 f8Q Nce7 f7 Ba5 h7 Qf4 Nf3 Ng6 Nd4 Nh6 N8c6 Bh3 Ra7 Bf5 Rf1 Bb6 Qg7 Rd8 h8N Rd6 f8R Nf7 Rc8 Ba5 Rf3 Bb6 Be3 c1N+ Kd2 Nd3 Kc3 Nc5 Qg8 Ba5+ Kc4 Bb6 Rb7 Ba5 Na7 c6 Bg1 Bd8 Rf2 Ke3 Nc3 b1Q Rd7 e4 Qb3 Nf8 Qd1 Bh7 Qb3 Qc2 Raf1 Ng6 Bh2 Qf5 Be5 Qd2 Rf4 Qh2 R4f2 Qh4 Kb4 Qhf4 Qd5 Kd3 Bg7 e3 Ne4 e2 Bf6 Ke3 Kc4 e1N Bg7 Nh6 Nf7 Ned3 Nb3 Nh8 Ba1 Ng4 Nd4 Nge5+ Kc3 Neg6 Kc4 Bc7 Nf3 Rf6 N3e5 Rd6 Nh6 Bd8 Nef7
N1N5/r5B1/P3P1B1/n1k2K2/1P2QN1Q/1r1qqB1r/p1rp1n2/R1BNb3 b - - 0 1 illegal: No possible last move, all moves rejected
1q1bN1N1/5PPN/R2Q2B1/p2RbQ2/K7/Pp2Rrbn/5b1N/r3Rq1k b - - 0 1 legal: proof: f4 d5 e4 c5 exd5 f6 b4 Qd7 bxc5 Qd8 g4 Be6 Bb2 Bc8 Be5 fxe5 h4 g5 f5 Na6 f6 Nc7 Bh3 Bf5 gxf5 g4 Bg2 Ne6 Bf1 Ng5 hxg5 Rb8 Qc1 Rc8 Qd1 Ra8 d4 Kd7 Kd2 b5 Kc3 h5 Kb3 a6 c4 h4 d6 Kc6 d7 h3 f7 e4 f6 e5 g6 g3 g7 h2 Na3 g2 Nf3 g1B Bd3 b4 Nb5 e3 Nc7 e2 Ka4 e1B Bg6 b3 Ne8 Qb8 d8R e4 Rd5 Bd6 f8N e3 f7 e2 Nh7 Beg3 Qd3 e1B Qf5 Bde5 a3 Ba5 Re1 B1f2 Re3 Nf6 Rhe1 h1Q Nh2 Bac7 Qd3 a5 Qf5 Kb7 c6+ Kb6 Nf3 Nh5 Nh2 Bd8 c7 Kc6 c8N Ra6 c5 Nf4 Ne7+ Kb7 Rb1 Nh3 Rbe1 Rf6 Ng8 Qf1 c6+ Kb6 c7 Kc6 Qe4 Rf3 c8R+ Qc7 Ra8 Qb8 Nf8 Rh4 Nh7 Rg4 Qf5 Re4 Rd3 Re2 Re3 Ra2 Rd7 Ra1 d5+ Kc5 d6 Kd5 Ra6 Kd4 Re7 Kd5 d7 Kd4 Rc3 Kd5 Rc5+ Kd4 Rd1+ Ke3 Rcd5 Be1 R1d3+ Kf2 Re3 Kg2 Ree6 Bef2 Re7 Bdc7 d8Q Kh1 Qd6 Bd8 Re1 Bb2 R7e4 Bbe5 R4e3
qbrqr1bN/1BBPR1PB/1P3n1K/Q2p1p2/k2nQ1R1/3RR3/7p/7B b - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 b5 a4 g4 axb5 g3 hxg3 Qf6 g4 Qe7 g5 Qd8 c5 d6 cxd6 c6 d7+ Ke7 d4 Nh6 d5 Ng8 d6+ Ke6 Nc3 Bg7 Nd5 cxd5 Rh4 Bh6 Rh1 Bf8 Kd2 a5 Ke3 h5 Kf4 f5 e4 h4 g4 h3 b4 h2 b6 a4 g6 a3 b5 a2 g5 Qc7 d8Q Nh6 b7 Qc6 g7 Qc3 g8B+ Nf7 g6 Nd7 b8R Ra5 g7 Qc7 Bh7 Ra7 Qa4 Rg8 Nh3 Qa5 Rg1 Ba6 Bg2 Ra8 Bh1 Bc8 Rg4 Ra7 Rb7 Nh6 Kg5 Ra8 Nf4+ Kf7 Ng6 Ke6 Nh8 Rb8 Bf4 Nc5 Rd1 a1Q Rd3 Qa8 Qda5 Nb3 b6 Nd4 Rc7 Qe1 Rcc3 Qf2 Qc2 Kd7 e6+ Kd8 e5 Qh4+ Kg6 Be7 Re3 Re8 Qe4 Ng8 Rcd3 Nf6 Bg3 Bf8 e7+ Kd7 e6+ Kc6 Be5 Bd7 Bf4 Rec8 e8R Be7 Bg3 Bf8 e7 Be6 Rd8 Bg8 Rd7 Re8 Be5 Rec8 e8B Be7 Bf4 Bd8 Bg3 Bc7 Be5 Rd8 Bg3 Rbc8 Bf4 Bb8 Be5 Nb5 Re7+ Kc5 Bc6 Re8 Qa2 Nd4 d7 Kb4 Bb7 Kb5 Qd2 Ka4 Bc7 Qg3 Kh6 Qd6 Re6 Qe7 Qc3 Qd8 Re7 Rf8 Qc5 Re8 Qa5+
3b3r/1BrB2B1/3KN3/B6b/qp3Qp1/P4nRQ/PQk1pP2/rR4bQ b - - 0 1 legal: proof: e4 d5 h4 Kd7 c4 g5 hxg5 a5 cxd5 a4 d4 a3 bxa3 Nf6 d6 Kc6 d7 Ng8 g4 Kd6 d5 Ke5 g6 Kf6 d6 Nc6 Nd2 Nb4 Ndf3 Nd5 exd5 Kg7 g5 f6 Ne5 f5 Ng4 fxg4 Ke2 h5 Ke3 c5 Kf4 e5+ Kf5 b5 Ke6 b4 Bg2 e4 Bb2+ Nf6 Bf1 c4 Rh3 h4 Bg2 e3 Rb1 e2 Nf3 c3 Rg3 c2 Qh1 c1B Nd4 h3 Ke5 Qa5 d8B h2 d7 Bc5 d6 Nh7 Bb7 Qa4 Ba5 Bb6 d8Q Bd7 Qb8 Be8 d7 Ra7 d8Q Bf4+ Kd5 Bbc7 Qd6 Bd8 Qf6+ Kg8 g7 Bh5 Qfe5 Kf7 g8B+ Kg6 Qe3 Bd6 Ne6 Kf5 g6 Ng5 g7 Nf3 Bf7 Bf4 g8Q Be5 Be8 Bec7 Qhc1 h1R Bd7 Bd6 Qg7 Be5 Rg1 Bh2 Rg3 Rf1 Ba1 Bg1 Kd6 Re1 Qgb2 Rf1 Bbc8 Rc7 Qh6 Ke4 Bb7+ Kd3 Qcf4 Be8 Qh1 Bg6 Qfh6 Re1 Q6h3 Bh5 Qc1 Rf1 Bg7 Re1 Qf4 Kc2 Qa7 Rf1 Qad4 Rd1 Rb3 Ra1 Rb1 Rc8 Qdf6 Rc7 Qb2+
k1KB4/1N2PP2/3Q1PpN/RNb2n2/B1qBQ2B/q1pb1qp1/n5N1/5r2 b - - 0 1 legal: proof: g4 b5 d4 f5 gxf5 e5 dxe5 a5 b4 h5 a4 Bd6 axb5 a4 b6 Nf6 c4 Rg8 c5 Ra6 b7 Rh8 b5 Rb6 cxb6 Ng8 Ra3 Bc5 Rg3 Bf8 Rg4 hxg4 Kd2 c5 Ke3 d5 Kf4 Kd7 e4 d4 h4 g6 e6+ Kd6 e5+ Kd5 f6 d3 e7 a3 e8N c4 e6 a2 e7 a1Q h5 c3 f7 d2 Qe2 d1Q Qe4+ Kc5 Ke5 g3 f4 Q1d7 f5 Q8c7+ Nd6 Qcd8 Nh3 Qa6 Bg5 Q7c7 Nf4 Qa2 Na3 Qf2 Ng2 Qcd7 Bh4 Na6 b8Q Qc6 b7 Be6 b6 Bd7 Bb5 Be6 Ba4 Qb5 Ra1 Qbe8 Nab5 Nh6 Na7 Ng8 h6 Bd5 h7 Qb5 Qc7+ Qc6 b8N Qf3 b7 Nh6 Qd7 Qcc7 Nbc6 Kb6 b8B Bc4 Na5 Nb4 Nb7 Bd3 Ke6 Bg7 Ra2 Qc5 Bc7+ Ka6 Bb6 Qdc8 Bd8 Bd4 Ra3 Qa8 Qc7 Bg1 Kd7 Qc4 Qb8 Bc5 Kc8 Rg8 h8B Na2 Bg7 Rh8 Bd4 Rh7 f6 Nf5 Bg5 Rh1 Bh4 Ng7 Nf5 Rf1 Nh6 Nf5 Nc6 Qa7 Qbf4 Qb6 Qd6 Qbb3 Nca5+ Ka7 Nc6+ Ka8 Na7 Qb1 Bd1 Qb6 Ra5 Qbb4 Ba4 Qa3 Nb5+
2Rr4/3npN2/q1Np2PN/nRQq2R1/1P3QnP/BR2Nk1K/prb5/8 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 f5 d4 f4 dxc5 Na6 e3 Nb8 g4 h5 g6 f3 g5 Bg7 Bh3 Be5 Bg4 Bf4 exf4 hxg4 Kf2 a5 Kg3 d6 h4 Kd7 c4 Ke6 b4 Kf5 g7 Ke4 g6 f2 f5 f1Q f6 a4 c6 a3 c7 a2 f7 Be6 f8R Bc8 c5 Rh6 c6 Ra5 b6 Ra3+ Nf3 Be6 c8Q Qe8 b7 Bf5 c7 Rh8 Nd2+ Ke3 Ne5 Qf7 Rg1 Qa6 Ndc4+ Ke4+ Ne3 Nf6 g8N Qd5 Rb1 Rb3 Nh6 Rb2 Qf1 Nfd7 Nef7 Nc6 b8N Na5 Nc6 Rg8 Rg2 Rh8 Kh2 Rg8 Qc4+ Kf3 Qd4 Be4 Qc5 g3+ Kh3 Bd3 Qd8 Be4 c8R Bc2 Rb8 Rh8 Rb5 Rg8 Rg1 g2 Qdb6 Rh8 Rc8 Re8 Qc4 Rd8 Qbc5 Rb3 Ba3 Rb2 Rgc1 g1N+ Kh2 Kf2 Qf4+ Nf3+ Kh3 Ke2 Rg1 Nfe5 Rg5 Ng4 Rd1 Nb8 Rd3 Nd7 Qfc4 Kf2 Rb3 Kf3 Qf4+
1Qq3r1/Np2n3/1K1p2R1/3N1bp1/PQN2R1P/R1qn1N2/1P2k3/q2BrR2 b - - 0 1 legal: proof: f4 f5 g4 c5 gxf5 a5 d4 e6 dxc5 a4 f6 a3 Nxa3 h6 Nb5 Na6 Na7 Be7 f5 Nb8 Bg5 Bd6 e3 Bf4 exf4 hxg5 Kf2 Kf7 Ke3 g4 Kd4 g5 h4 g3 c4 g2 a4 Ne7 c6 e5+ Kc5 e4 c7 e3 Qd6 e2 Ra3 e1Q Kb6 Qe8 c5 Qg3 c6 Rg8 Be2 Qg4 Qb4 d6 Nf3 Qg3 Bd1 Qd8 Rf1 Kf8 f7 Kg7 f8Q+ Kh7 f6 Kg6 f5+ Kh5 f7 Qe8 f6 Bg4 c8N Na6 c7 Qd8 Qe8 Nc5 Qf8 g1Q Qe8 Rg6 f8R Bf5 f7 Re6 Rg8 Re1 Rg6 Qe5 f8R Qc3 Rff6 Qh1 Rf7 Nd3 Qg8 Bd7 Rf4 Bf5 Nc6 Qd7 N8a7 Qe6 Qb8 Qc8 Rg4 Qg1+ Rd4 Qh1 Na5 Qg1 Nc4 Qh1 Rd5 Kg4 Rd4+ Kg3 Rg1+ Kf2 Rf4 Qg8 c8N Qf8 Bc2 Ke2 Rf1 Qg8 Kb5 Qg1 N8b6 Qc8 Nd5 Qe6 Qc7 Rg8 Qb8 Qc8 Bb3 Qe3 Bc2 Qc1 Kb6 Qa1 Bd1+
BrBQ4/N2b2Qp/P1QBP2N/1b2p1nQ/p1n1k3/7P/bB2K1nr/4R3 b - - 0 1 illegal: No possible last move, all moves rejected
bnK2NBR/3P3r/1pR4R/NQ1r1r1Q/1bn1p3/3QQpPP/k1R4n/8 b - - 0 1 legal: proof: b4 a5 bxa5 g5 e4 d5 exd5 h5 Ba3 c5 Bb4 cxb4 g3 Qd6 g4 Qg3 gxh5 g4 Nc3 Qh3 Nb1 g3 Bc4 g2 Bf1 Qg3 fxg3 Rh7 Ke2 Rh6 Ke1 Rh8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 f5 a4 b3 d4+ Kb4 c4 b6 d6 b2 d7 f4 Ke6 Bh6 d5 Bg7 d6 Be5 c5 Na6 h6 Rh7 c6 Nb8 c7 Na6 Nd2 b1N Nh3 g1R Nc4 Rg2 Ra2 Rf2 Ng5 Nb8 a6 Kc3 a7 Re2 a5 Rf2 a6 Nd2 Rc2+ Kb3 Na5+ Ka3 Qh5 f3 Bc4 Rh8 h7 Bb7 d8Q Rf1 c8R Nd7 Rc6 Rb8 a8Q Ngf6 a7 Bc3 Qde8 Rf8 h8R Rd8 Nh7 Ng4 Qb8 Ra1 a8Q Rf5 Nf8 Bb4 Qa6 Ba8 Qb5 Rf1 Qa7 Nb8 Qaa6 Rd1 Bb3 Rd7 Qd3 Rb7 Qe3 Rc7 Qad3 Nc4 Rh6 Rf4 Qb5 Rf5 Qh5 Rd2 h3 Nh2 Rhc1 Rf7 Rh8 Rh7 d7 Rc8 Kd5 e5 Ke6 e4 Rd6 Rh6+ Ke7 Rc5 Kd8 Rf5 Kc8 Rh7 Rh6 Rd1 Qde2 Rdd5 Q2d3 Nd2 Rcc6 Nc4 Rc2 Rde5 Rc7 Nd2 Rc1 Kb2 Bg8 Rd5 R7c3 Ka2 Rcc6 Nc4 Rc2+
8/N6Q/1p1p2QB/nbQq1N2/pPNP2Pb/5nR1/1n2n1RN/QK4nk b - - 1 2 legal: proof: e4 c5 b4 f5 exf5 a5 f6 Kf7 a3 Ke6 f7 Kd6 Nf3 g6 Ng1 Kc6 bxc5 Ra6 Qg4 Rb6 Qd1 Rb4 axb4 Bh6 Ke2 Bg7 Ke1 Bf8 f4 h5 h4 Na6 g4 Kd5 f5 Rh6 f6 Kc6 Bd3 Nb8 Bf5 gxf5 Kf2 Rg6 Ke1 Rg5 hxg5 h4 g6 Qb6 Nh3 Qc7 Ng1 Qd8 d4 Kd5 Kd2 Ke4 c4 e5 Kc2 b6 g7 a4 c6 f4 c5 h3 c7 f3 c6 h2 Bb2 f2 Kc1 f1N Qe2+ Ne3 Ra2 Ne7 g8Q Ba6 c8N Nd5 c7 Nf4 Qf1 Be7 f8Q Nd1 f7 Nc6 Qe8 Na5 f8Q Nh3 Na7 Bb5 c8N Bh4 Nf3 Ng1 Ne7 d6 Na3 Qa8 Kb1 Qd5 Qeg6+ Ke3 Qfe8 e4 Q8h7 Kf4 Qd7 Kg3 Qdf5 e3 Nc4 e2 Bc1 e1N Rg2+ Kh3 Bh6 Nb2 Nfd2 Nef3 Qc2 Ne2 Rhg1 h1N Nf5 Nf2 Rg3+ Kh2 Qfc1 Nbd1 R1g2+ Kh1 Nf1 Nh3 Nh2 Nhg1 Qa2 Nb2 Qa1 Be8 Ne5 Bd7 Qc5 Bb5 Nc4
QR1q3b/Q1N2N1B/1RPQ3p/2r2p1P/Pk1n3N/N1b5/2r1pKnp/7Q b - - 0 1 illegal: No proof kernel
BN5N/3R2r1/pp1bqPP1/P3pk2/3Q4/ppQ1B3/1B1Q2n1/n2KBQr1 b - - 0 1 illegal: Other
2Qq3k/7Q/p6N/1QpRrrpp/r1NpPbNB/3P1R2/P1K5/Q4nN1 b - - 0 2 legal: proof: c4 e5 f4 b5 cxb5 f5 fxe5 f4 e3 f3 Be2 fxe2 Kf2 Qf6+ Ke1 Qe7 Kf2 Qd8 g4 Nc6 h3 Nd4 h4 g5 h5 Nf5 gxf5 Bb7 Qb3 Bd5 Qc2 Bf7 Qd1 Bg6 hxg6 Qb8 Rh2 Qc8 Rh1 Qd8 Ke1 c5 b4 d5 g7 Kf7 e4 h5 b6 a6 b7 Qc7 b8Q Rh6 e6+ Kf6 b5 Qa5 e7 Qa3 e8N+ Kf7 b6 Rd6 b7 Ra7 f6 Re6 Qc7+ Re7 b8Q Kg6 f7 Kh7 Rh3 Qd3 Na3 Re6 Rf3 Qb5 Nc4 Bd6 f8Q Qa5 Qb5 Nf6 g8N+ Kh8 Qce7 Ng4 Nef6 Ra8 Qc8 Re5 Nh6+ Qd8 d3 d4 Kd2 e1R Kc2 Re2+ Bd2 Nh2 Nfg4 Rf2 Qeb7 Rf1 Be1 Rb8 Bh4 Bc7 Rf5 Rf3 Qe1 Nf1 Rd1 Rf4 Rd2 Rf3 Rf2 Rf4 Rf3 Bd6 Rf7 Rff5 Qa1 Bc7 Rd7 Bd6 Qa5 Bc7 Qa7 Rb4 Qb5 Ra4 Qab7 Ba5 Rd6 Bd2 Rd5 Bf4 Qh7+
4NqB1/NB2k2K/3r1QRb/3n1p2/1b1PbP1n/2BP4/q2r2qQ/2B1N1Nn b - - 0 1 legal: proof: b4 e5 a4 d5 g4 b5 axb5 h5 gxh5 d4 d3 e4 Kd2 Rh7 Ra2 Rh6 c3 e3+ Kc2 Rh8 cxd4 Be7 Kb3 Bf8 Rd2 exd2 Kb2 Ba6 Kc2 Bc8 h4 c5 e4 f5 b6 g5 b5 a5 b7 g4 h6 g3 h5 c4 h7 a4 b6 c3 e5 g2 h6 a3 e6 a2 e7 a1Q Na3 Ra4 Qh5+ Kd7 e8B+ Kd6 Bf7 d1N Qh2+ Ke7 f4 Kf6 Kb3 Qd6 Nc2 Nf2 Ne1 Nc6 b8B c2 b7 Nge7 Bc7 Qd8 b8N Nb4 Kc4 Nd1 Nc6 Nf2 Na7 Ra6 Bg8 Nbd5 Ba5 Ng6 Bc3 Bb7 Be2 Ra2 Bf3 Nh4 Be4 Bg7 Kc5 Qa8 Kd6 Qf8+ Kd7 Ra6 Bf3 Qa2 Be4 Qfa3 Ke8 Bf8 Bf3 Bb4 Be4 Rd6 Kf8 Bc6 Ne2 Ba8 Rg1 Nh1 Bf3 Ne7 Bb7 Nd5 Rf1 g1Q Rf3 Qa5 Rg3 Qg2 Ng1 Qc5 Bc8 Bc6 Bb7 Be8 Rg5 Bf7 Rg4 Ke6 Kg7 Ke7 Rg3 Be8 Rg6 Bc6 Be6 Re8 h8Q Rc8 h7 Rb8 B1d2 c1B Bg8 Bca3 Be3 Nf6 Kh6 Be4 Bc1 Nd5 Qg7+ Ke8 h8N Qc8 Nf7 Ke7 Qh8 Qf8+ Kh7 Rc8 B3b2 Rc2 Ba1 Rd2 Bc3 Rf6 Nd6 Re6 Ne8 Rd6 Nc8+ Kd7 Qh3 Qf6 Na7 Bc5 Nef3 Rc6 Ba1 Bf8 Nh2 Rd6 Bc3 Ke7 Nhf3 Bh6 Ne1 Bb4 Qh2 Qf8 Qf6+
3QBKNR/2r1p1B1/b1QqPB2/1r1QQ2B/3b2P1/2nknPnr/1N2q3/3b4 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 f5 hxg5 d4 e4 d3 e5 Nd7 cxd3 Nb6 d4 Nd7 d5 Nb8 Ra3 Qd6 Re3 Qd8 Re4 fxe4 Ke2 Kf7 Ke3 Kg6 Kd4 Kf5 g4+ Kf4 d6 c5+ Kd5 a5 d4+ e3 f3 h5 d7 a4 Ke6 a3 Kf7 c4 g6 c3 d5 c2 e6 a2 g7 a1R d6 h4 b6 h3 b7 h2 b5 Qc7 d8Q Nc6 b8B R8a7 d7 Ba6 b6 Ra5 b7 Nd4 Nc3 Rh3 Qe8 Nf5 d8Q Rb5 Ne4 Qd6 Qd5 Ng3 Bb2 c1N Nf6 e2 Qec6 e1Q Ne2+ Ke3 Nf4 Nce2 Nd3 Nc3 Bc7 Qd2 b8Q Nh6+ Ke8 Qg2 g8B Bg7 Bf7 Qe2 Bh5 Nhf5 Ng8 Bd4 Kf8 Rab7 Bb6 Rc7 Ba1 Kd2 Nb2 Ne3 Ba5 Qe1 Bd3 Qd1 Bdg6 Qe2 Be8 Kc2 Rg1 h1B Bb6 Bg2 Rh1 Bf1 Bc5 Qd7 Bd6 Kd2 Be5 Qd6 Bf6 Qc4 Qdd7 Be2 Qdd8 Bd1 Bg7 Qe2 Bf6 Rb3 Qbb5 Rb4 Qe5 Kc2 Qbd5 Rb5 Bg7 Kd2 Qf5 Na2 Bhf7 Rh7 Nd3 Ba7 Baf6 Nc3 Qfe5 Bd4 Nb2 Rh5 Nc4+ Kd3 Rh2 Rf5 Rh8 Rh5 Nb2+ Kc2 Qcd7 Rh3 Q7c6 Kd2 Bh5 Kc2 Na4 Kd3 Nb2+
Bqq3rR/4RBP1/qb2rp2/1B2RPP1/1B3R2/3qn3/b4r2/2QNKQkn b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 g5 axb5 g4 Nc3 g3 Nd5 e6 hxg3 exd5 g4 d4 g5 Qe7 Rb1 Qf6 Ra1 Qd8 f4 Ke7 e4 Ke6 b4 h5 g4 a5 c4 d5 g6 f6 b6 a4 c6 h4 c7 d3 e5 a3 g7 h3 g5 Kf5 e6 Ke4 b7 h2 b5 d2+ Ke2 a2 b6 d4 e7 d3+ Kf2 Nh6 e8R+ Be6 c8B Ra6 f5 Nc6 b8Q Ne7 c5 Rg8 b7 Nd5 c6 Ne3 c7 Bc5 Nh3 Bb6 Ba3 Qd7 Qe1 d1R Re7 d2 Bb4 Ng4+ Ke2 Rb1 Qc1 Rb2 Nf2+ Kf4 Rb1 Kg3 Nd1 a1Q Bg2 Bf7 Rf1 h1Q Rf4 Kh2 Qa7 Bb3 b8R Kg1 Ba8 Qh8 Bcb7 Qc8 Bd5 Rba2 Bf7 Nf2 Qb7 Rc2 Qf3 Ba2 Re5 Nh1 Qf1+ Kh2 Rb7 Qb8 c8B Rb2 Qf3 Kg1 Bd7 Qc8 Bb5 Qb8 Rbe7 Rc2 Kd3 Rb2 Nf2+ d1Q+ Kc3 Qf1 Nd1 Rf2+ Rb2 Qfh3 Qe2 Qf3 Kd2 Qe4 Rc2 Qd3+ Ke1 Qc8 Rcc4 Qh2 Rh4 Qg3 Rh8 Qh2 Rd5 Qhb8 Rde5 Bb1 Ree4 Ba7 Rh6 Re6 Rh8 Qaa6 Re5 Bb6 Rf4 Ba2 Qf1+
1Qqn4/6KQ/1Qp1rB1R/2P1qb2/P2N1nQP/5B1q/1Bqr2bb/1RB2k2 b - - 0 1 legal: proof: d4 a5 b4 e5 bxa5 h5 dxe5 f6 g4 Rh6 Nd2 Rh7 Ne4 f5 gxf5 Rh8 Nf6+ Kf7 Ng4 hxg4 Bg2 Ke7 Bf1 Ke8 Kd2 Ke7 Kc3 d5 Kd4 g5 f4 b5 h4 g3 c4 g2 a4 b4 e4 g4 c5 b3 f6+ Ke6 a6 b2 a7 b1B f7 g3 Ne2 Nf6 Rg1 Bd6 f8B Nh5 Bg7 Rh6 Bf6 Bb7 Bb2 Bd3 Rb1 Qc8 Qb3 Bc2 Qb6 Rg6 Nc1 Rh6 Be2 Bc6 Rf1 g1Q+ Rf2 g2 Bf3 Qh1 Nb3 g1Q f5+ Kf7 Bc1 Qe1 Bb2 Qh3 e6+ Ke8 e7 Kf7 e5 Nf4 Rg2 Bb7 Rg8 Qeg3 Rh8 Nc6+ Ke3 Nd8 Kd4 Rb8 a8Q Be4 Qaa7 c6 Be2 Bg2 Bf3 Ba6 Qab7 Bd3 Q7a7 Rg6 Rh6 Rb7 Qb8 Rd7 e6+ Kg8 Bg5 Kg7 e8Q Qgh2 e7 Re6 Qh5 Bc2 Kc3 d4+ Kc4 Be5 e8Q d3 Qg4 d2 Nd4 d1Q Qh8+ Kf7 f6 Bf5 Ne2 Rd2 Nd4 Bc7 Bc1 Qe1 Bb2 Qe5 Qh7+ Ke8 f7+ Kd7 Rh5 Bd6 Bh6 Ke7 f8B+ Kf6 Kc3 Qe3+ Kc4 Ke5 Be7 Bc7 Bhg5 Qf2 Rh6 Qe1 Bd1 Ke4 Bef6 Ke3 Bf3 Kf2 Kc3 Qe5 Kc4 Rd1 Kc3 Kf1 Kc4 Nd5 Bgc1 Nf4 Bg7 Qd5+ Kc3 Nh5 Ne2 Qd2+ Kc4 Qc2+ Bgc3 Re1 Kd4 Bg3 Qgf4 Rd6+ Ke5 Rd2 Bd4 Ng7 Kf6 Nge6 Qg4 Bc7 Q8b7 Qf4 Be5 Qfe4 Bec3 Bh2 Qb8 Nf4 Kg7 Qd5 Bf6 Qd4 Ng1 Re6 Ne2 Qe5 Nd4
5KQB/n2B1nN1/nr2Q1rP/5bQB/2p5/r1P2P1q/1b1RqQ1R/2kr2B1 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 f6 g4 Ne7 Nc3 Ng8 Ne4 f5 gxf5 Kf7 Nf6 Ke7 Ng4 hxg4 Nf3 Kf7 Ng1 Ke8 Kd2 Ke7 Kd3 a5 Kd4 g5 Kd5 c5 h4 d6 b4 c4 e4 a4 e6 Kf6 h5 g3 c3 g2 e7 g4 e8B g3 e5+ Ke7 e6 Kf6 h6 a3 b6 a2 e7 Ra4 b5 Qd7 b7 Ra3 b6 Na6 Nf3 g1R b8B g2 b7 Rh7 Rb1 a1Q Be3 Qa2 Nd4 Qe2 Bh5 Qe6+ Kc6 Ke5 e8Q Ke4 Qc1 Kd3 f6 Qh3 f7 d5 Rb2 Ne7+ Kd6 Bf5 Ne6 d4 Rh2 Nc6+ Qe7 Rh8 Ng7 Na7 Bc7 Rg8 b8Q Rh1 Bb6 g1N Bg5 Nf3 Bf6 Rg1 Qg5 Ne5 Bg2 Rga1 Bc6 Rb1 Rc2 Rb5 Bd7 Rb1 Ra2 Rb2 f3 Kc2 Qb7 d3 Bg1 d2 Qb6 Kb1 Qf2 Rb8 Rc2 d1R+ Rd2 Rbb3 Ne8 Rb5 Bh8 Kc1 Ng7 Rb1 Kd5 Rb6 Qe6 Bc5 f8Q Nf7 Qa8 Be3 Qc8 Nd8 Ke5 Nf7+ Kf6 Bf4 Ke7 Be3 Ne8 Rg6 Kf8 Bc5+ Nd6 Ra1 Ke7 Ra5 Qg8 Ba3 Kf8 Bb2 Ne8 Ra3 Ng7
1B6/5b1p/r1RQbq1k/Nq2R2P/bR1KQNr1/b1nP2QP/r6R/2Q3n1 b - - 0 1 illegal: No proof kernel
1b1rr1N1/1b1qPQpb/3B2QN/r1P1QnPq/6Qk/N3R2B/8/2KNn1b1 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 f4 e5 fxe5 c4 g4 c3 g5 Nc6 dxc3 Qc7 c4 Qa5 c5 Qd8 Ra3 Nb8 Rg3 Qf6 Rg2 Qd8 Rg4 hxg4 Kd2 Ke7 h4 d5 e4 a5 c4 f5 e6 d4 c6 f4 e5 g3 b6 d3 h5 g2 b7 a4 b5 a3 c5 a2 b6 a1R c7 f3 h6 f2 h7 Na6 b8Q Ra3 b7 Nb4 Ne2 g1B Nec3 Nh6 Qa7 Rb8 Bh3 f1Q Qg4 Qd5 Nd1 Ra5 Na3 Nf5 Qb6 Rba8 b8Q Bb7 c8N+ Ke8 e7 Kf7 e6+ Kg6 Q8d6 Qff3 Qe5 Qd7 Qa7 Nc2 e8Q+ Qf7 Rh2 Ne1 Re2 Bd6 Re3 Bb8 Qc6 Re8 h8N+ Kh7 Qcb6 Qd7 Nf7 Kg6 Nh6 Rd8 Bb2 Qe2+ Kc1 Re8 Qa4 Kh5 Ne7 Qg4 Ba1 Kh4 Neg8 Rd8 Bd4 Qh5 e7 Re8 Qg6 Rd8 Qf7 Re8 Qb6 d2+ Kb2 Rd8 Qbg6 Re8 Nc3 d1B Kc1 Bc2 Nd1 Bc7 Qac4 Rad8 Qe2 Bb8 Bc3 Ra7 Ba5 Bd3 Bc7 Ra5 Bd6 Ng3 Qgf6 Bh7 Q6g6 Nf5 Qg4+
1k5N/1b1QrbQr/1N3K2/4QQ1B/2p2n2/3RbP1R/nqPP3R/n1n1q2R b - - 0 1 legal: proof: e4 b5 h4 d5 exd5 g5 hxg5 b4 b3 f6 Bb2 Bg4 Be5 fxe5 a3 Nh6 axb4 Bc8 b5 Ng8 Ke2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 g4 h4 b4 h3 d6 a4 g6 a3 g7 c4 g5 e4 b6 e5 b7 e3 b5 a2 b6 e2 g6 e1N Nc3 e4 Qf3 h2 Nh3 e3 Ng5 e2 Nd5 Qc7 Nf7 Ne7+ Kf6 Ra7 g8Q Rh5 g7 Nbc6 b8Q Rh7 b7 Ng6 Nh8 Nb4 Qf5+ Kd8 d7 Ned3 Rb1 e1Q Rb3 a1N Nb6 Na2 Qge6 Ndc1 g8Q Nf4 Qg7 Bc5 Rh3 Be3 Be2 Qd6 Bg4 Qa3 Qbe5 Qb2 b8R Rc7 Bh5 Rb7 Qc3 Kc7 d8R+ Bd7 Ra8 Ra7 Qee5+ Kb7 Qgg4 Be6 Rd3 Re7 Rad8 Bf7 R8d6 Kc7 Qg7 Kb8 Qcd4 Rac7 Re6 Kb7 Qd7 Kb8 Rg1 h1B Rh2 Bc6 Rgh1 Bb7 Red6 Bc5 Rdh3 Be3 f3 Rc8 Qgg6 Rg8 Qg1 Rg7 Qg2 Rh7 Qgg5 Bc6 Qg7 Bb7 Rd3+
2q4Q/1P2B3/1bn5/p1R1P3/3bkqr1/P3rbnN/1B1BR2Q/rB1RK1Rb b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 f4 Bg7 fxg5 Bf8 g4 h6 g6 Qg5 Nc3 Qe7 Ne4 Qd8 g5 h5 Nf2 Qf6 Ng4 hxg4 Qd4 Qe7 Qd1 Qd8 e4 Ke7 h4 Ke6 b4 d5 g7 c5 b6 a5 b5 f5 h5 c4 b7 f4 a3 f3 g6 c3 b6 f2+ Ke2 g3 h6 d4 h7 c2 Bf4 c1Q Qd2 g2 Rh5 Nh6 g8R Nf5 g7 Nc6 b8B Bc5 Bd6 Bb7 Be7 Qc8 Nh3 g1B Qb2 Ra6 Bd2 Ba8 Rd8 Re8 h8B Bb7 Bg2 f1R g8R Ra8 Ra2 Rd1 Rg4 Rg8 Rg3 Rg4 Bh1 Be3 Rg1 Rb8 Rd5 Rf1 Rg5 Rf3 Rd1 d3+ Ke1 Bcd4 Rc5 Ng3 Rg8 Kf7 Bg7 Kg6 e6 Qc4 e5 Kf5 Bh6 Ba8 Bc1 Rb7 Qh2 Ke4 Bb2 Bg1 Bd2 Qc1 Bdc3 Qf4 Bd2 Rc7 Bf6 Rd7 e7 Rb7 Bg2 Rb8 Bf1 Re3+ Be2 Rb7 e8Q Rd7 Be7 Rd5 Rb5 Rc5 Rg6 Rc1 Rc5 Ra1 Qh8 Rf3 Qd8 Bc3 Rc4+ Kf5 Qh8 Nb8 Rb1 Nh5 Bc1 Rh4 Rab2 Be3 Rg1 Rg4 Rc2 Bc5 Bb2 Ng3 Re4 B3d4 Bdc1 d2+ Kd1 Bc6 b7 Bb6 Rc5 Bd5 Bd3 Nc6 Bc2 Rd3 Re2 Bh1 Reg2 Ke4 Rf2 Nf5 Ke2 d1B+ Ke1 Be2 Bd2 Bef3 Rd1 Ng3 Re2+ Kf5 Bb3 Re3 Ba2 Ke4 Bb1+
1r1B4/B2R1Q2/bP4Q1/KBp2P2/7n/N3BqQ1/b1PQr1k1/Rqnr2bb b - - 0 1 illegal: No possible last move, all moves rejected
1nR3qr/R2r2Rp/1NqP2qn/1P2b3/1NbRnN2/1n2NQQP/8/1k3BK1 b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 f4 Kd7 b3 Nh6 Bb2 Ke8 f6 g5 f5 Ng8 Be5 Nd7 Bd6 Nb8 Bf4 gxf4 Kf2 Kd7 d4 Kd6 g4 c5 h3 a5 b4 e5 b6 c4 f7 f3 b7 e4 f6 c3 b5 c2 g5 c1Q g6 a4 g7 a3 Ne2 e3+ Kg1 a2 Nf4 e2 Na3 e1Q Nc2 Qee8 Ne3 Nh6 g8Q Qcc6 Qg3 Bg7 f8N Ra7 f7 Be6 Nd7 Be5 f8R Qg6 Nb6 Qdc8 Rf7 Qcg8 Rg7 Bf7 Rc1 a1N Rh2 Nb3 Ra2 Nd7 b8N f2+ Kg2 Rb7 Na6 Nb8 Nb4 Rd7 Ra7 Be6 Qf3 Bf7 Be2 f1N Kg1 Nfd2 Bf1 Ne4 Rc3 Ke7 d6+ Kf6 Rc2 Bc4 d5 Qcc8 Nd1 Kf5 Rc1 Qc6 Rc3 Bf6 Ne3+ Ke5 Rc1 Kd4 Rd1+ Kc3 Rd4 Re7 d7 Kb2 d8R Kb1 d6 Be5 Rf8 Rd7 Rc8
3N2r1/1R1nQq1p/7Q/Q2k3P/1b4R1/Bn1PprRn/RQ2P2K/b1b2Br1 b - - 1 2 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 e4 f3 e3 Nc3 Bf5 Ne4 g6 Ng3 Be4 Nf5 gxf5 fxe4 f4 g4 Kd7 h4 Kd6 b4 a5 b6 c5 d3 f5 g5 c4 g6 c3 e5+ Ke7 b7 a4 g7 a3 e6 Kd6 b5 c2 b6 a2 e7 f3 e8Q f4 Nh3 Ra5 Ba3+ Rc5 Rg1 c1B Rg3 Qc7 Ng5 Nh6 g8R Nf7 Ne6 Ng5 Qe7+ Ke5 d6 Nd7 b8Q Kd5 b7 Nh3 R8g4 Rg8 Nd8 Rb5 h5 Rb1 Qa4 Qc4 Qa6 f2+ Kd1 f3 Qb6 Ne5 d7 Qf4 Qh6 Qf7 Bg2 f1N Ke1 Nd2 Bf1 Qg7 Ne6 Qg6 d8Q+ Nd7 Qdc7 Qf6 Nd8 Nb3 Qc3 Qf5 Qa7 Qf7 b8R Ndc5 Rb7 Nd7 Qe8 Bb4 Qe7 Rb2 Qd2 Rc2 Qa5+ Rc5 Rb1 a1B Rb2 Rb5 Ra2 Rc5 Bg2 Rb5 Kf1 Rc5 Re4 f2 Qb2 Rb5 Bf3 Rc5 Kg2 f1R Kh2 Rg1 Bg2 Rb5 Bf1 Rc5 Qa8 Rc4 Reg4 Rf4 Qaa6 Rf3 Qa5+
BK2Q3/PN1Q3q/6q1/B2n1Q1p/1n1b1BRP/RrkpQ3/1Pn1B1q1/2r2b2 b - - 0 1 illegal: Other
3qB1Q1/3N4/4k1R1/1Qbr1n1p/Q1P1N1p1/N1r2NP1/K1Qr1Pq1/2Bbb1n1 b - - 0 1 illegal: No possible last move
1BR3q1/3P1qQn/k1bK1Rp1/1Qn2p1R/rP3PQr/Q1N2b2/4N3/b3r2R b - - 0 1 illegal: No possible last move, all moves rejected
3b1n2/1Kp4p/2PBNqq1/P1Q1Qn1P/2BR3R/3Q1kBr/3rr2n/1QB4b b - - 0 2 legal: proof: d4 e5 dxe5 a5 b4 f5 bxa5 Bd6 e4 Bf8 exf5 g5 f4 Qe7 f6 Qd8 f5 Ne7 Nc3 Ng8 Nce2 Bc5 Nf4 gxf4 Ke2 Ba3 Ke1 Bf8 Kd2 Kf7 Kd3 d5 Kd4 b5 g4 f3 h4 b4 c4 b3 a4 b2 a6 b1R a5 f2 c5 Nd7 h5 Nh6 e6+ Kg8 g5 Be7 a7 Rbb8 g6 Rb6 f7+ Kg7 f8B+ Kf6 g7 Rg8 Qc2 Bb7 Ra4 Nf7 Bc4 f1Q Rh4 Ng5 Nh3 Qg2 Nf4 Rb3 Rb4 Rc8 a8Q Rh3 Qb8 Rh8 g8Q Nf3+ Kd3 Ke5 f6 d4 f7 Bd5 c6 Nh2+ Qg3 Kf5 Qe3 Qg6 Qb7 Bf6 e7 Bh1 e8Q Ra8 Bc5 Nf8 Ne6 Qe7 Bd6 Rd8 Bg3 Rg8 Kd2+ d3 Qc5+ Rd5 Ke3 Qd6 Ra4 Bd8 Qbb1 Qe7 Kd2 Qef6 Qee7 Re5 Kc3 Rd5+ Kb4 Rg7 Re4 d2 Kb5 d1N Ka6 Ne3 Rf4+ Ke5 Kb7 Nf5 Qe8 Nd7 f8B Re7 Qf7 Re8 Be7 Nf8 Qg7 Nh6 Re4+ Kf5 Bed6 Re7 Nf4 Kg4 Rd4 Re2 Ne6+ Kf3 Qh8 Nf5 Rh4 Qfg5 Qe5 Rd1 Bb3 Q6f6 Rad4 Qgg6 Bc4 Rdd2 Qd3+
3K1kN1/1R1nr1r1/3qN2Q/2n1B2p/Bbb1pP2/2nQ2BP/1qP2r1Q/Q4B2 b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 g5 e4 f5 d4 g4 dxc5 Qa5 Ra3 Qb6 exf5 Qc7 f4 Qd8 Rf3 gxf3 Kd2 h5 Kd3 e5 Ke4 a5 Kd5 a4 g4 f2 g5 d6 b6 a3 b7 e4 h3 a2 c6 a1Q g6 Qaa5+ b5 Ra6 c7 Ra7 f6 Rh7 g7 Rh8 f7+ Ke7 Bd2 Ra6 Nc3 Ra7 Be1 Qa6 b6 Nc6 b8B Qa3 b7 Ra6 Nf3 Rb6 Qd3 Rh7 Nd4 Ne5 Ne6 Nd7 Rg1 Rb1 Kc6 Ngf6 g8Q d5 Qg2 d4 Qh2 Nc5 Rg7 Ra1 Kb6 Qc1 Kc6 Ra7 Kb6 Qa3 Kc6 Bd7+ Kb6 Bb5 Nd5+ Kd7 Ne7 Bc4 Ng8 Qb2+ Bb4 Be7 f8Q Kd6 Rf7 Kd7 Qg7 Ke8 Qh6 Rg7 Kc6 Bd6 c8B Nfd7 Be1 Be7 Be5 Bf8 Qf3 d3 b8Q d2 Qa8 d1N Qd3 Nc3 Ba6 Bd6 Bb5 Rb7 Qa1 Bf8 Be2 f1R Bg3 Rf2 Bf1 Be7 Nd4 Bd6 Re7+ Kf8 Ba4 Nf6 Rd7 Ra7 Rb7 Nfd7 Nf3 Qf6 Ng5 Be7+ Kc7 Qd6+ Kc8 Bd8 Qa3 Ba5 Qa1 Bb4 Kd8 Nb8+ Rd7 Qd4 Rd6 Re7 Rd7 Qd6 Ne6+ Kf7 Kc8 Ke8 Rb7+ Nbd7 Nd4 Kf7 Kd8 Kf8 Ne6+
6BN/1rR2q2/R2Qr1R1/3p1qR1/2pnn2Q/Pbk1r1QP/2P5/BK1Qb1b1 b - - 0 1 illegal: No possible last move
1B1b1B2/1N6/1QR1p1P1/p2b3q/r1Qrn1P1/P1Q1B1N1/K1B1n1k1/1r1Qb1q1 b - - 0 1 legal: proof: e4 g5 b4 c5 bxc5 h5 f4 d5 exd5 h4 a3 Qc7 Ra2 Qa5 Rb2 Qb6 Rb3 Qc7 fxg5 Qd7 g4 Qd8 Rg3 hxg3 c4 Kd7 d4 b5 Kd2 f5 Kc3 a5 Kb3 f4 h4 b4 c6+ Kd6 c5+ Kc7 g6 f3 h5 e6 h6 f2 h7 g2 Nc3 Qd7 Na4 Qd6 Be3 Bb7 Bd3 f1Q Ka2 Qh2 Ne2 g1B Bc2 Be7 Ng3 Qh5 Rh2 Bd8 d6+ Kc8 d5 Nf6 d7+ Kc7 Rh3 Rf8 h8B Ne4 Bg7 Rf4 Bf8 Bf2 Rh2 Qg1 Rh1 Na6 Rh3 Be1 d6+ Kb8 Rh2 Nc7 Rd2 Nd5 c7+ Ka7 c8Q Ka6 c6 Kb5 c7 Kc6 Nc5 b3+ Kb1 b2 Ka2 b1R Rf2 Ba6 Nb7 Be2 Rh2 Bf3 Rg2 Ra6 Rd2 Rab6 Rd4 R6b4 Rc4+ Nc5 Rc3 Rfd4 Rc4 Ra4 Rc3 Bf6 d8B Nf4 d7 Kd5 Bde7 Be4 Bd6 Ne2 d8Q Bg2 Rc4 Ne4 Rc6 Bh1 Qa8 Be7 c8Q Bh4 Qb6 Bd8 Bb8 Bg2 Rc7 Ke5 Qaa6 Bf3 Bf2 Kf4 Qc4 Bg2 Be3+ Kf3 Bg5 Kf2 Rc6 Bf3 Be3+ Kg2 Bbd6 Nc5 Bb8 Bd5 Qcc7 Ne4 Qg7 Rd3 Qgb2 Rd4 Qc3
4Q3/NP3p1B/3p1RrN/1rN2bQ1/1R4Nq/1K1PR1kq/1P3R1n/b3n1qb b - - 0 1 illegal: No proof kernel
1qN3rn/qR1QpBP1/n2RBprk/7Q/RbR4B/rb4P1/1n2P3/2B2K2 b - - 0 1 illegal: No possible last move
br1rQ3/6n1/1bP1pBk1/2Nb4/B1pRP3/2NbK1B1/3n2QP/Bqb1N2N b - - 0 1 illegal: No proof kernel
1KNrb3/1pr1B1rP/1P2b3/3r1p1n/2Bb4/QN4NP/NBq4R/Bk3n1Q b - - 0 1 legal: proof: b4 d5 a4 a5 g4 e5 c4 h5 cxd5 e4 gxh5 e3 b5 Qf6 fxe3 Ra7 e4 Qe7 e5 Qd8 Ra3 Ra6 Rb3 Ra8 Rb4 axb4 Kf2 Kd7 Kf3 g5 Ke4 c5 d4 g4 h6 c4 b6 f6 e6+ Kd6 h3 b3 h7 c3 a5 b2 e7 c2 e8N+ Kd7 d6 Kc6 d5+ Kc5 a6 Kc4 d7 Kb3 d6 Ka2 Kd5 f5 e4 g3 a7 g2 e5 Qf6 d8B Qh6 e6 Be7 d7 Qg6 Ne2 g1R Ng3 Na6 Nf6 Bc5 e7 Bd4 Kd6 Nc5 Kc7 Ne4 e8N Nd2 Nd5 Nf6 Be7 Nh5 d8B Bd7 Nd6 Be8 Nc8 Qf7 Bd3 Nf1 Nd2 b1B Bb2 Qf8 Nb3 c1R+ Bc4 Qf6 Ne4 Rg7 Rh2 Qg6 Qe1 Qg2 Ng3 Qc2 Qe4 Rf8 Qh1 Rf6 Ba1 Rd6 Bb2 Rgg6 Bf6 Rg7+ Bde7 Rb8 Ne3 Rd5 Nd1 Bf2 Bfc3 Bd4 Ba1 Ra8 Bcb2 Rb8 Nd6 Rd8 Nc8 Qd3 Kb8 Qe2 Bd3 Rc7 Bc4 Bc2 a8Q+ Kb1 Qa4 Bd3 Qa3 Qc2 Nf2 Be2 Nd3 Bd1 Ndc1 Be2 Ba6 B2b5 Na2 Bbd7 Be2 Be6 Bc4
2Rb3r/b3BR1Q/K2Qk2p/1Q1nq1PB/1bQ5/1n3N1P/RPrp1n2/5R1b b - - 0 1 illegal: No proof kernel
n3R2k/2p3n1/1rnP1p2/1q4P1/2BNQRQ1/2Q5/brPb1RKb/nN1R1Q2 b - - 0 1 legal: proof: g4 g5 a4 h5 e4 d5 exd5 b5 axb5 h4 b3 Na6 Ba3 Nb8 Bd6 Qd7 f4 Qd8 fxg5 Rh7 Bf4 Rh8 Bg3 hxg3 h4 e5 d4 a5 g6 g2 Kf2 a4 h5 a3 d6 a2 g7 e4 d7+ Ke7 d5 Kf6 d6 Ra3 b4 Nc6 b6 Qe8 d8Q+ Nge7 g8Q Rb3 h6 Rb2 b7 Be6 h7 Bh6 b8R Bd2 Ne2 g1B+ Kg2 e3 b5 Bh2 Nd4 e2 b6 Bb3 Qc8 Nf5 b7 Ng7 g5+ Kg6 Qg4 f6 Q8e6 Rg8 h8Q e1N+ Kh3 Bd5 Bc4 Nd3 Qf1 Nc5 Qee4+ Kf7 Kg2 Nd7 Qhh4 Nb6 Qhh3 Na8 Qc3 Rf8 Rc8 Kg8 b8R Kh8 Rb4 Qd7 Re8 Bg8 Re5 Rb8 Rf5 Rb6 Rf2 Ra6 Rb8 Rab6 Re8 Qf5 Na3 Qd5 Rd1 a1N Nb1 Qb5 Qfe2 Ne5 Rhf1 Nc6 Rf4 Nb8 R1f2 Nc6 Re5 Bf7 Qf1 Bd5 Bd3 Bb3 Bc4 Ba2 Re8+
qk4nR/r4Q1r/NKb4q/7p/2NBB2P/3BQBQ1/P5Pp/3rQrbn b - - 0 1 legal: proof: f4 a5 h4 g5 b4 e5 fxe5 d5 bxa5 d4 Na3 d3 Rb1 g4 Rb3 Bg7 cxd3 Nf6 d4 Ng8 d5 Bf8 Rbh3 gxh3 Kf2 Kd7 Ke3 b5 Kd4 f5 e4 h5 e6+ Kd6 e7 f4 e8Q b4 a6 c6 e5+ Kc7 e6 h2 e7 f3 Kc5 b3 d4 f2 a7 b2 d6+ Kb7 d7 b1R d5 Kc7 d6+ Kb7 Bb2 Rh7 Qf7 Bh6 e8B Bc1 Ne2 Be3+ Nd4 Nh6 Bc4 Rc1 Re1 f1R Qe2 Qe7 d8Q Ng4 Qa5 Rd1 Bd3 Bd7 Qb4+ Kc8 Kb6 c5 Ne6 c4+ Bd4 c3 Nc7 c2 Nc4 c1Q Qbd2 Bb5 Bc6 Qd8 Bf3 Bg1 Qe4 Qf8 Qh6 Nf2 d7+ Kd8 Qd2 Bc6 Re3 Qh8 Qe1 Nh1 Qef4 Qf8 Re5 Qca3 Qfe3 Qh6 Re7 Bb5+ Re6 Nc6 Rg6 Qaf8 Rg8 Ba4 Rh8 Ne7+ Qg6 Ng8 Qge6 Rc8 a8B Bb5 Bac6 Ra8 Bce4 Bc6 Qd6 Ra5 Qdg3 Ra7 Na8 Ke7 d8Q+ Ke6 Qf6+ Kd7 Nc7 Qa8 Qfg7+ Kc8 Qf7 Kb8 Na6+
3NBn1n/P1rp4/1pq2Qn1/bP3R2/b1B2Pr1/k2QK1B1/2qn2N1/4NBN1 b - - 0 1 legal: proof: b4 c5 a4 a5 d4 h5 dxc5 f5 g4 f4 gxh5 f3 b5 Ra7 exf3 Ra6 f4 Rd6 f5 Ra6 Ra3 Ra7 Rb3 Ra8 Rb4 axb4 Kd2 e5 h4 Ke7 c4 g5 c6 Kd6 c5+ Kd5 c7 b3 f6 b6 f7 g4 a5 e4 h6 g3 h7 b2 c6 Kc5 h5 Kb4 h6 g2 a6 Ra7 Rh5 Nf6 Rf5 Bb7 c8B Qc7 Ke3 Rg8 h8N Nh7 Qd3 Rg4 Nd2 b1N Ndf3 Nd2 Ng6 Bd6 Bb2 Nf8 h7 Be7 Bc3+ Ka3 h8Q Bb4 Ne1 Ba5 f4 Qd6 c7 Bd5 Qe5 Bb3 Nh4 Nc6 Qf6 Ne5 Bb7 Neg6 c8B Ba4 Bd5 Qc6 Bc4 Rc7 a7 Nh8 Bb7 Rg5 Ne2 g1N Nhg2 Ngf3 Ng1 Rg4 Ba8 Nh4 Bb7 Nh7 f8N N4g6 Ne6 Nhf8 Nd8 Nh4 Kd4 e3 Bf7 e2 Be8 N4g6 Ke3 Qc4 Bd5 Qa2 Nef3 Qc2 Bc4 e1Q+ Be2 Qeb1 Nfe1 Qb4 Bf1 Qd6 Nef3 Nb3 Be1 Qd5 Bg3 Qc6 Qe2 Nd2 Nfe1 Qb2 Qd1 Qc1 Qe2 Qc2 Qd3+
Rb3QRQ/q1RB2Qr/1qNq2R1/1b3p1Q/3k4/1pq1r3/3P1P1P/1N1nn1K1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 gxh5 d5 exd5 Nf6 a4 Qd6 Ba3 Ng8 axb5 Qd7 b6 Qc7 b5 Qd8 Bb4 cxb4 c4 Kd7 c5 a5 b7 e5 b6 f5 d6 Ke6 d7 Kd5 h6 g5 c6 b3 c7 g4 h7 e4 Ra4 e3 Rb4 a4 Nf3 g3 Bb5 g2 Rf4 g1Q+ Ke2 a3 Rh4 a2 Ne1 a1Q Nf3 Qgg7 Kf1 Qgc3 Rh6 e2+ Kg1 e1Q+ Kg2 Qa7 Rg6 Bd6 Rf1 Qee3 Kg1 Na6 b8Q Nh6 b7 Qeb6 Ne5 Nb4 Qh5 Nc2 Rc1 Ng4 Ba4 Qf6 d8Q Ne1 Qg8+ Kd4 Bd7 Ne3 Qg7 Nd1 Rc2 Re8 h8Q Re6 Ba4 Bd7 c8R Re7 Rg8 Bb5 Qbf8 Rae8 b8R Qe6 Ra8 Bb8 Rc1 Qed6 Rc2 Qe3 Rc7 Qc3 Qgh6 Rh7 Q6g7 Be2 Bc6 Bb5 Bd7 Kd5 Nf3 Re3 Ne5 Kd4 Nc6+
2k5/5b2/1Qb2pp1/K2nnPbR/1RP2R1n/b1rq1BPN/Qb1B4/R1Q3Q1 b - - 0 1 legal: proof: d4 a5 a4 c5 dxc5 d5 e4 b5 axb5 d4 Nf3 Ra6 Ng1 Ra7 g3 h5 Na3 h4 Nc4 h3 Ne3 Rd7 Ng2 Rd5 exd5 hxg2 Kd2 Kd7 b4 e5 h4 g6 f4 e4 b6 f6 f5 a4 h5 a3 c6+ Ke8 d6 a2 h6 d3 Kc3 d2 c7 Kd7 b7 e3 b5 e2 Kb4 e1B b6 Na6+ Ka5 Nb4 b8Q Nd3 h7 Ne7 b7 Ne5 Rh5 Nd5 Nh3 g1N Be2 Ngf3 Qa7 Nh4 b8R Bb7 Bf3 Bc6 Rb4 Kc8 c3 Bf2 Qg1 d1B Bd2 Be3 Qb6 Rg8 h8Q Bg5 Qg7 Bb3 Qf7 Nf4 Qc4 Rh8 Qe2 Bf7 Qeg2 Nd5 Rf4 Kd7 c8R Be7 Rb8 Rg8 Rb7+ Kc8 c4 Re8 Q2f1 Bf8 Qc1 Re7 Rb1 a1B Rb4 Bb2 Ra7 Ng4 Ra6 Re3 Ra7 Rc3 Ra6 Qe7 Qa7 Qe4 d7+ Kd8 Qaf2 Ne5 Qa7 Qd3 Qaf2 Nb6 Ra8+ Kc7 d8Q+ Kb7 Qdd4 Kc7 Ra6 Nd5 Qb6+ Kc8 Be1 Ba3 Qa2 Bb2 Bd2 Be7 Ra4 Bea3 Rb4 Ng4 Ra7 Ne5 Qab1 Bb7 Kb5 Ba8 Raa4 Bb7 Ka5 Bc6 Rb3 Bd6 Ra1 Be7 Qa2 Bea3 Rb4
Q1r2N2/RQ1p1b1b/1n3p2/kb3P2/bqRr4/Q2rb1NB/RR1P2QP/4K3 b - - 0 1 illegal: No possible last move
1k3qn1/5b2/2q1qR1B/K1RB3q/1QR3p1/2b2pPR/Pq1Q1PrQ/Q2N1r2 b - - 0 1 legal: proof: d4 c5 h3 a5 b3 e5 Nc3 g5 Nd5 c4 bxc4 Nc6 Nb4 axb4 dxe5 g4 h4 Nd4 Bb2 Ne6 Bc1 Ng5 hxg5 Bc5 Qd2 Be7 Qd1 Bf8 Kd2 f5 e4 d5 g3 Kd7 g6 Kc7 e6 b5 g7 h5 e5 b3 Kc3 h4 c5 d4+ Kb4 f4 c4 b2 e7 d3 e8R d2 e6 h3 e7 f3 c6 h2 c5 Ra5 Bc4 Ba6 Bd5 Rh6 Ne2 Kb8 Nc3 b1Q+ Qb3 Qg6 Nd1 Qe6 c7+ Ka7 c8R Rh4 Rc6 Kb8 Rb1 Ra3 Qb2 Re3 Qa1 Re1 Rc7 Rh7 c6 Rf1 Ka5 b4 Rb2 b3 Rc2 b2 Rc5 b1Q Rc4 Nh6 g8Q Qb2 Qg5 Bg7 Rf8 Ng8 Rf6 Qf8 e8Q+ Bc8 Qeh5 Rh6 Rg1 h1Q Qh2 Bd7 Rc5 Be8 Qf4 Bf7 Qb4+ Ka8 Rc8+ Ka7 c7 Qc6 Qg2 Qh5 Rh1 Rh7 Qh2 Rh8 Nc3 d1Q Bh6 Qe1 Nd1 Qee8 Qg2 Qee2 Rh3 Qee6 Qh2 Rh7 Re8 Rh8 c8Q Rh7 Qd8 Rh8 Rf5 Bc3 Rf6 Rh7 Bc4 Rh8 Qd2 Rh7 Rc8 Rh8 Bb5 Kb7 Rc7+ Kb8 Bc4+ Qb7 Bd5 Qed6 Rc4 Qd7 R7c5 Qhf5 Bg7 Qde6 Qg1 Rh7 Rh1 Rh2 Bh6 Rg2 Rh3 Qg5 Qh2 Qh5 Ka4 Qbb6 Bb7 Qbd6 Kb5 Qc7 Bd5 Qcc6+ Ka5+
R1QRN1R1/1B3p2/nr1p1P2/b2QB3/5q1P/1Bp1rRqP/3B2n1/1r2kb1K b - - 0 1 legal: proof: c4 h5 a4 d5 cxd5 b5 axb5 h4 d6 h3 gxh3 Nd7 h4 Nb8 d4 Kd7 d5 c6 Nc3 Qb6 Ne4 Ke8 d7+ Kd8 Nd6 Kc7 d8B+ Kd7 Nb7 Rh7 d6 Ke6 d7 Rh8 Nd6 exd6 b4 Kf5 f4 Kg4 h3+ Kg3 e4 g5 f5 a5 e5 a4 e6 a3 e7 a2 e8B c5 Bf6 c4 d8R g4 Bg2 c3 Kf1 Qb7 b6 Ra5 b5 Ne7 Nf3 Ng6 Kg1 Be7 Be5+ Nf4 f6 Na6 Nd4 Qe4 b7 Rg8 b6 Rb5 Bc6 Re8 b8R Rb2 b7 Rb6 Rh2 Qf3 Kh1 Kf2 Ra8 g3 b8Q Qg4 Bf1+ Ng2 Bb7 Qf4 Nb5 Bf5 Qd4+ Ke1 Qd5 Bd3 Qc8 Be2 Rb1 a1R Nc7 Bd3 Rb2 Rb1 Rf2 Bb5 Be2 Bc4 Bd1 Bf1 Rd7 Bd8 Rf3 Re7 Ne8 Bc7 Bb3 Bd8 Bd4 Re3 Be5 Rb5 Ng7 Ba5 Rd8 Rb6 Ne8 Qa4 Ng7 Nf4 Ra2 g2+ Kh2 Qb4 Ne8 Qd4 Kg3 g1Q+ Rg2 Qf2+ Kh2 Qe4 Kh1 Qf5 Rg8 Qg3 Qd7 Ng2 Qc8 Qff4 Bd2+
b1n2B2/3Pp2B/n3P1q1/R1Q3pr/1kB2q2/N3Nr1P/n1pbBQ2/1N3K1N b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 g4 h6 b4 Be6 g6 Kd7 g7 Nc6 g5 Ke8 g6 Bc8 Ra3 Nb8 Rg3 Bg4 Rg2 Bc8 Rg5 hxg5 e4 Kd7 d4 Kd6 b6 f5 h3 a5 b7 c5 b5 f4 e5+ Kd7 d6 c4 b6 Kc6 d5+ Kb5 d7 a4 d6 f3 Qc2 a3 Be2 a2 Bb2 a1N Kf1 Qe8 d8Q f2 d7 Ra6 Qc7 Nf6 g8B Ka5 g7 c3 Bgc4 Nb3 g8B Na1 e6 Ra7 Bh7 Na6 b8N Ne4 b7+ Kb4 Qg3 Bg7 Nc6+ Kc5 b8N Bb7 Qh2 Nd6 Nd4 Qg6 Nf5 Kb4 Ne3 Nb3 Qf4 Nc8 Nc6+ Kc5 Qc1 Ba8 Nd4 Kb4 Nb5 c2 N5a3 Be5 Qf8 Bc7 Bg7 Ba5 Qf4 Rc7 Bf8 Rb7 Qd1 Nc1 Qdd4 Na2 Qf7 Rb5 Qa7 Rf5 Qc5+ Ka4 Nf3 Be1 Nfd2 Rf3 Ne4 Ba5 Ng3 Bd2 Bg8 Rh6 Bh7 Rh5 Rg1 Nb8 Nh1 Na6 Qc6+ Kb4 Rg4 Rg3 Rd4 Rf3 Rd5 Qh6 Qf4 Qg6 Qc5+ Ka4 Qh4 Rg3 Qa7 Kb4 Ra5 Rf3 Kg2 f1Q+ Kh2 Rf6 Qg3 Qff5 Kg1 Qe4 Qf2 Rf3 Kf1 Qf4 Qc5+
2qr1QnQ/Q1B2NqR/pPKbb1P1/1B4pn/B4b2/4Q3/1p4P1/B3kN1r b - - 0 1 illegal: No proof kernel
kn2QQn1/b3pprB/P3p3/2RR2Nb/P2nP3/3R4/Q1QK3N/nR3rq1 b - - 0 1 illegal: Other
Nb1B2KQ/1PpQp1Qp/1r4k1/1q6/3P2bP/1Q1Rnb2/1nNN3r/b2BN3 b - - 0 1 illegal: Other
1bn1BQ1n/1p6/N3BrP1/q2R2nQ/1Pn3Pr/2pKRQ1p/1k6/1B2BQ1b b - - 0 1 legal: proof: f4 g5 h4 e5 fxe5 d5 hxg5 a6 c4 Nh6 cxd5 Ng8 Na3 a5 Nc2 a4 b4 Nh6 Nd4 Ng8 Nb3 axb3 g4 Kd7 a4 c5 d4 h5 Kd2 f5 e4 h4 e6+ Kd6 g6 h3 e7 b2 e8B b1N+ Kd3 f4 e5+ Kc7 e6 Kb6 a5+ Ka6 d6 f3 d5 f2 d7 Kb5 a6 Nc3 e7 Ra7 d6 Rh6 Ne2 Ra8 a7 Nc6 Ra3 Rh4 Nf4 Qa5 d8Q Bd7 Bf7 Ne4 e8B Ng5 Qf3 Nh6 Ne6 Ne7 Bd2 Bc6 d7 Nc8 Qdf6 Bd6 d8Q Bb8 Rb3 Ka4 Qdd5 Be5 Be2 f1N Be1 Ne3 Nc7 Nc4 Be6 Nhf7 Na6 Nh8 Bd1 Bb8 Bc2 Be5 Bb1 Bb8 Rb2 Ka3 Re2 Kb3 Re3 Ka3 Qf8 Kb2 Qdf5 Bd5 Qf1 Bf3 Rg1 Bg2 Q5f3 Bh1 Qh6 Nd2 Qh5 c4+ Ke2 c3 Kd3 Nc4 Rg3 Bf4 Re5 Rb8 Rd5 Bc7 a8Q Be5 Qa7 Ra8 Qc5 Bb8 Qcf8 Ra7 Q3f6 Ra8 Re3 Ra7 Nc7 Ra6 Q6f3 Rd6 Na6 Rb6 B6d7 Rf6 Be6
r1br1qR1/1R2Q1r1/2Np1Qp1/Rp1rrb1n/N7/1P1PN1P1/1N3K2/kRB5 b - - 1 3 illegal: No possible last move
n4Q1n/2p1NB1Q/3B4/Nq2bp2/2P1p1B1/Qn1R1n1P/4PB2/1KQbkb1r b - - 0 1 legal: proof: b4 a5 g4 h5 d4 e5 f4 b5 a4 e4 axb5 g6 f5 Ra6 Ra4 Re6 Ra1 Re5 dxe5 Qf6 Ra3 Qd8 Rg3 Bh6 fxg6 Bg7 g5 Bf8 Rg4 hxg4 Kd2 Ke7 c4 Ke6 Kc2 Kf5 g7 d5 e6 g3 b6 Kg4 e7 f5 e8B g2 b5 a4 b7 a3 b6 a2 g6 d4 Ba3 Bd7 Bf7 Qc8 Bd6 Nh6 g8Q Qe8 Nf3 g1N Qc1 Bg7 Qh7 Be5 Nbd2 a1N+ Kb1 d3 g7 Nb3 Nd4 Nf3 g8Q+ Kf4 Qgg7 Ke3 Qf8 Kf2 Nc6 Be6 Bg2 Nd7 b8B Bd5 b7 Nb6 Bf1 Na8 Ne7 Qb5 Bh3 Bc6 Bg4 Be8 Bfh5 Nf7 Rd1 Nc5+ Nb3 d2 Qhg8 Rh7 Ba7 Nh8 b8Q Rh6 Bf7 Rh5 Re1 d1B Qh7 Rh3 Rg1 Rh4 Rg3 Ke1 Qc8 Rh5 Qa6 Rh3 Bd5 Bh5 Bf7 Rh4 Qaa3 Rh3 Qab2 Rh4 Na5 Nb3 Bh3 Bg4 Qa3 Ng5 Rd3 Nf3 Bg2 Bh3 Bd4 Ng5 Bf3 Bf1 Bg4 Nf3 Bb6 Rh3 Bbc5 Rg3 h3 Rg1 Bd4 Rh1 Bf2+
1NnN1bR1/1p6/N4B1Q/2b1nbB1/5Np1/1P1pPkP1/1qB4K/qr1B1bQ1 b - - 0 1 illegal: No proof kernel
1R3q2/3KpNB1/1Pp2P2/1p1R4/3b1npr/k3NrP1/Qn4RN/2Qb1RNn b - - 0 1 illegal: No proof kernel
n1QN2R1/kpP3r1/2P1q3/n5p1/3Bnb1Q/1PpbQp2/B3r2Q/2BNBK2 b - - 0 1 illegal: No possible last move, all moves rejected
5RB1/Npn2bqP/1rrN2R1/2p2N2/3qQ2K/1PP2pp1/2nNQ3/2Q1Q1bk b - - 0 2 legal: proof: f4 g5 fxg5 e5 d4 h6 dxe5 Nc6 g6 Nb8 g4 a5 g5 a4 g7 a3 g6 Ra7 Qd4 Ra4 Bg5 Ra8 Qa7 hxg5 Nxa3 Bd6 Nb1 Bf8 Kf2 Ke7 Kg3 Ke6 e4 f5 a4 d5 h4 c5 h5 d4 c3 d3 a5 d2 b3 d1Q h6 g4 a6 Q1d5 h7 Be7 Rh6 Q5d7 Ne2 Nc6 Nd2 Q7e8 Nd4+ Kd7 e6+ Kd6 e5+ Kd5 Nb5 Nd4 Bc4+ Kc6 Rf1 Bf6 e7 Bd7 e6 Qf7 e8Q Nc2 e7 Bd4 Kh4 Nf6 g8Q g3 g7 f4 Rg6 Bg1 Qgf8 Rc8 g8N Qg7 Nh6 Ra8 Be6 Nd5 Qf6 Rf8 Qd4 Rc8 Bg8+ Rf6 Qa8 Re6 a7 Rc7 Qc8 Rf6 a8Q Re6 Qf8 Be8 Qa1 Rd6 Qe6 f3 Re1 Bf7 Qc1 Rc8 Qee5 Kd7 Na7 Rb6 Re2 Rcc6 Qc4 Nc7 Re3 Bd5 Qff4 Bf7 Re2 Qc8 e8N Qd8+ Qeg5 Qdf6 Nd6 Qd4 Re8 Ra6 Rf6 Rab6 Rf8 Ke7 Q4f1 Kd7 Qf5+ Ke7 Q5d3 Kd7 Rf5 Ke6 Rf6+ Kd5 Qg4 Ke5 Rg6 Kd5 N6e4 Ke5 Qe6+ Kf4 Qa6 Ke3 Qf5 Qd5 Nd6 Qde5 Qfd1 Kf2 Qe4 Kg2 Nhf5 Qd4 Qae2+ Kh1 Qde1
2K2b2/1p2r3/1PpQ1pp1/r1RBBrqN/bN2B3/1Q2Q3/1Pnq1P2/QB5k b - - 0 1 illegal: No possible last move, all moves rejected
2r5/2Nn2pr/1rp2R2/N1rpqb1k/pBNNP1P1/1n4Q1/QQ1PQ3/4R1K1 b - - 0 1 illegal: No possible last move, all moves rejected
1BN2Q2/BpppqQ1p/7n/1RPK2RP/3bB3/2qP3Q/rq6/1QrB2kr b - - 0 1 illegal: No proof kernel forced: wxLB
2B1r1r1/r2RP1nN/bnR1p1q1/KP2rR2/B2k2N1/RPRb4/2B4B/1n6 b - - 0 1 legal: proof: h4 b5 d4 g5 hxg5 e5 dxe5 b4 c3 b3 axb3 Bh6 b4 Bf8 b5 Bb4 cxb4 Kf8 e4 Ne7 e6 Nbc6 e5 Na5 Qe2 Ng8 e7+ Kg7 e8B Nc6 e6 Nb8 e7 Nf6 Qc4 Ng8 Qe6 fxe6 Kd2 a5 Kc3 d5 g4 c5 f4 h5 b6 h4 f5 h3 g6 Kf6 g5+ Ke5 b7 c4 g7 a4 f6 h2 f7 a3 f8R a2 g6 Nh6 g8R Qd6 g7 Qd8 b3 Ra5 Nd2 Nd7 b8R Nb6 Ba4 Ba6 Rb7 Qe8 Ne4 Nf5 Rd7 Qg6 Nh3 Rb5 Rg1 h1B Nef2 Be4 Ng5 Bd3 Nh7 Ra5 Rg3 d4+ Kb2 c3+ Ka3 c2 Ng4+ Ke4 Bf4 c1R b5 Rc8 Kb4 Re8 Bd6 Kd5 Rf3 Ke4 Bg2 Kd5 Bh2+ Ke4 Rc1 a1R Rc6 Re1 Rf6 Re2 Rgf8 Re1 g8B Ng7 R6f5 Re3 Bf7 Rg8 Bh1 Bc8 Bg2 Ra7 Bh1 Ba6 Ka5 Bb1 Bg2 d3 Bh1 d2 Bg2 Qh6 Bg6 d1N Bh1 Nc3 Rf2+ Rf3 Ra2 Bd3 Ra3 Nb1 Bg2 Qe3 Bh1 Qg1 Rc3 Qg2 Rfc5+ Rf5 Rc6 Nd5 Rf6 Kd4 Rf8 Re5 Be4 Bf1 Bc2 Bd3 Rf5 Qe4 Rdc7 Nb6 Rd7+ Qd5 R6c5 Qd6 Bb7 Qd5 Bc8 Qd6 Rb7 Qd5 Rc6 Qe4 Rh5 Qg6 Rf5 Qh6 Rbc7 Qg6 Rd7+
4BRR1/3pb2R/1K1nN1N1/BP3Br1/2rn1q1R/b2B2qb/1k2P1P1/3R2b1 b - - 0 1 illegal: Other
1Nn4R/N1rbNp2/nRbP1p2/1PB4n/4qr2/K1P1B2k/1B3N1b/BB6 b - - 0 1 illegal: No proof kernel
5nRr/p1B1n3/BqRb2P1/6q1/P1NqP3/2RBp1Br/3NK3/R4Rkn b - - 0 1 legal: proof: e4 c5 b4 e5 bxc5 f5 h4 g5 hxg5 f4 Qe2 Ke7 d4 Ke8 Qe3 fxe3 dxe5 Qe7 Bc4 Qf6 Bf1 Qd8 f4 Kf7 a4 Ke6 g4 h5 c4 b5 g6 d5 c6 d4 f5+ Ke7 e6 Kf6 g5+ Ke5 c5 Kf4 e7 Kg3 e8R d3 f6 d2+ Ke2 d1N f7 b4 g7 b3 c7 b2 c6 h4 g6 h3 Nf3 h2 Bd2 Qd4 Na3 b1Q Nc4 Rh3 Ba5 Nf2 Re6 Qbb6 Nfd2 Bd6 f8B Ne7 g8R Nd7 Bg7 Ba6 c8B Nf8 c7 Bb5 Ba6 Rd8 Ke1 Rb8 Be2 Kg2 c8R Bd7 Rf1 h1Q Bd3 Qg1 Ke2 Nh1 Rfb1 Kh2 Rc6 Qg5 Be5+ Kg2 Bg3 Rc8 Ke1 Kg1 Re5 Bg4 Rf5 Bf3 Rfc5 Bg2 Kd1 Qb4 Bc7 Re8 Na5 Ra8 Rc3 Qbb6 Nac4 Nh7 Rg7 Rh8 Rg8 Nf8 Ke2+ Bf1+ Rxf1+
1q4R1/bp2R3/4K1Rr/B1p4q/NPPB4/3PRb1B/qN4rB/2kBb2q b - - 0 2 legal: proof: e4 a5 f4 f5 g4 g5 b4 e5 fxe5 d5 exd5 a4 Qf3 f4 Qc3 Nc6 Qb3 Nd4 h3 Nf5 gxf5 axb3 h4 g4 Kf2 Nh6 Ke2 Nf7 Ke1 Ng5 hxg5 Ra6 Rh4 Ra3 Rh1 Ra8 Kf2 Kf7 a4 h5 c4 c5 a5 f3 Kg3 b2 Kf4 f2 a6 g3 a7 g2 e6+ Kg7 Ke5 h4 d6 h3 e7 h2 e8B Qc7 g6 Kh6 g7 Kg5 g8R+ Qg7+ f6 Rb8 a8R Rh4 d3+ Rf4 d7 Qg6 d8B Bg4 R8a6 Bf3 Ba4 Bd6+ Ke6 Be5 Nc3 b1Q Rb6 Qa2 Bb2 Rg4 Nd1 Kf4 Bd4 Qh5 f7 Ra8 f8B Ra6 Rc6 Bb8 Nb2 Ba7 Re1 Rg7 Ba5 Rg3 Be2 f1Q Bed1 Rg4 Bfg7 Qe2+ Bde5+ Ke3 Bd6 Rg5 Bd4+ Kd2+ B6e5 Qe3 Ne2 g1B Nc3 Qf4 Re3 Bf2 Rhe1 h1Q Rd6 Qf8 Bd7 Qb8 Nca4 Kc1 Bh2 Rb6 Ke7 Rg2 Bh3 Bg3 Rdg6 Rf6 R1e2 Be1 Kd7 Rb6 Re7 Rf6 R2e3 Ra6 Rg5 Rh6 R5g6 Qf8 Kd6 Qb8+ Ke6
6Rn/4p3/2B2pBB/N2PpP2/KRr3Rk/Pr3rr1/q1BNq3/2BR3b b - - 0 1 legal: proof: h4 b5 b4 a5 bxa5 g5 hxg5 d6 e4 b4 e5 b3 e6 Nd7 c3 Bg7 exd7+ Kf8 Qe2 Bd4 Qe3 Bc5 Qe5 Bb4 cxb4 dxe5 Kd1 Kg7 d4 Kg6 g4 c5 f4 h5 f5+ Kg7 a3 f6 g6 c4 b5 c3 b6 b2 Kc2 h4 Kb3 c2 g5 h3 d5 h2 a6 Nh6 a7 Rf8 b7 Qb6+ Ka4 Qf2 d8B Qe2 b8R Be6 Ba5 Qd2 Rb4 Qe1 Bd3 Rfb8 Nd2 b1Q Nb3 Qe2 Nf3 Bf7 Nfd2 Qa2 Rg1 h1R Bb6 Rg8 Be3 Rab8 a8B Rh3 Na5 Rf3 Bc6 Be8 Rd1 Nf7 Rab1 Rb6 Rg4 Nh8 Rbb4 Kf8 g7+ Kf7 Bb2 c1R Bf4 Rc4 Bc1 Rf8 g8B+ Kg7 Rg3 Bh5 Bf7 Rg8 g6 Rb7 Rg5 Kh6 g7 Bg4 Rg6+ Kh5 Bh6 Kh4 Bc2 Bh3 Bfe8 Bg2 Rg5 Bh1 Bg6 Rcf4 Re4 Rbb3 Rc4 Rg4 Rb4 Rc8 g8R Rc7 Bce8 Rcc4 Bc6 Rgg3 Rg4+
1qk2n2/3N4/rb2BR2/2RnrpP1/N3PPqR/3N3b/2RB1bq1/1K1Nn1R1 b - - 0 1 illegal: No possible last move, all moves rejected
n1q1rB2/4nK2/1BB1R1p1/r1r1R3/NkPRr1P1/2r4b/NP1bR2b/R6B b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 f5 exf5 h5 d4 Nc6 dxc5 Nb8 g4 h4 Qd3 Qc7 Qh3 Qd8 Qg3 hxg3 Ke2 d5 Kd3 Kd7 Kd4 a5 Ke5 g2 c4 g6 f4 a4 h4 a3 c6+ Kc7 h5 Kb6 f6 Ka5 h6 e6 f7 d4 h7 d3 f5 d2 c7 d1R b6 a2 b7 Be7 f8B Bh4 f6 Rd3 f7 Bg5 Rh2 Bd2 Nc3 Na6 b8R Bb7 c8B Ne7 Kf6 e5 Bd7 e4 Bc6 e3 Nge2 g1B Na4 Qc8 Bfg2 Rc3 Bh1 Kb4 Rg2 Rg8 h8R Nc7 Rh5 Ra5 Re5 Rc5 Ra8 Bh2 Ra6 Na8 Rf2 Rg7 Rf4 Rg8 Rd4 Be1 Bd2 Rh8 Nc1 e2 Be3 Bd2 Bg1 e1R Re2 Rg8 Ra5 Rh5 Re6 Re4 Rae5 Rg5 Bg7 Rd8 f8R Re8 Kf7 Rh5 Rh8 Rg5 Bf8 Rh5 Rb1 a1R Rg8 Ra2 Ra1 Raa3 Nc5 Ra5 Na4 Re1 Re2 Rhc5 R2e5 Re4 Rh8 Bhf4 Rh2 Bg3 Re2 Bh2 Bf2 Ree3 Bb5 Bg2 Bc6 Re4 Rdd5 Rcb5 Bb6 Bh3 Rd4 Rc5 Na2+
b2RKN1b/BkbN2bR/2BBRp1r/2q2PnR/1P1b1Rrn/2P5/3q4/4B3 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 gxh5 d5 exd5 c4 Qf3 Nc6 a4 Nb8 Qb3 cxb3 axb5 Bh3 Ra2 Be6 Ra1 Bc8 Ke2 Kd7 Kf3 Kc7 Kf4 g5+ Ke5 a5 f4 b2 d4 a4 h4 a3 h6 e6 f5 g4 h7 g3 b6+ Kb7 c3 a2 h5 g2 d6 Ra5+ d5 Bd7 h6 Ra8 Bd2 Na6 Rh5 Ne7 Kf6 e5 Bb5 e4 Be1 e3 Nd2 b1Q Nb3 e2 Nf3 g1B Ng5 Nc5 Ne6 Bc6 d7 Qc7 d8R Qc1 d6 Qd2 d7 Ng6 Rd1 a1B Re8 Bb2 d8R Nh4 Re7 Rg8 h8B Rg4 h7 Ra6 Ra1 Bh6 Nf8 Bc1 Re6 Bg2 Bd7 Ne4+ Ke7 Ng5 Bd4 Qc5+ Ke8 Bg7 h8R Bf2 Be5 Bd4 R8h7 Bh8 Bd6 Bdg7 Nd4 Be4 Nf3 Bd4 Ne5 Bd5 Bf2 e1B Bb5 Bc6+ Ned7 Bdg7 Bfg3 Bf2 Rb1 Bfd4 Be1 Qb2 Ra1 Bf4 Ra2 Qg2 Rf2 Bfe5 Rf4 Qd2 Bb8 Bc7 Ba7 Ra2 Ba4 f6 Bb5 Qd1 Ba4 Rh2 Bb5 Qd2 Ba4 Ka6 b7 Rh1 b8B Rh3 Ree4 Ba8 Re6+ Kb7 Bc6+ Ka6 Bh1+ Bb6 R5h6 Ng6 Ree4 Kb7 Bd6 Bc7 Bf3 Rh5 Bh1 Nh4 Re6+ Ne4 Rg6 Rh6 Rg5 Qc6 Rh5 Ng5 Bf3 Qd5 Bd1 Qe5 Ba4 Qc5 Bc6+
1rq1B2N/1b1nN3/1rNN1BR1/k5p1/3Bn3/n1bBPKPb/3R1p1P/3r2N1 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 h5 d4 e5 fxe5 h4 dxc5 h3 g3 Bb7 Qd5 Bc8 Qg2 hxg2 Kf2 a5 b4 f5 c4 d5 e6 g5 e7 Kd7 e8B+ Kc7 b6+ Kb7 b5 f4 e3 d4 Bb2 a4 Nc3 a3 Ne4 d3 Bd4 d2 Bd3 a2 Kf3 Ra6 c6+ Ka8 c5 Bh3 c7 Kb7 c8N Nf6 Ne7 Bg7 Ng6 Qc8 Rd1 Rf8 Nh8 a1N Rc1 Nc2 c6+ Ka8 c7 Kb7 Rb1 Na3 Rb4 Nbd7 Nd6+ Ka8 Rc4 Ne4 Rc6 Rg8 Bf6 Rf8 b7+ Ka7 b8N d1B+ Be2 Bb3 Bd3 Bd5 Rb6 Bb7 Rc6 Qd8 Bd4+ Rb6 c8N+ Ka8 Ne7 Ka7 Ndf5 Qc7 Rg6 Qc8 Nd6 Bf6 Ne2 Rg8 Rd1 g1R Rd2 Rd1 Ng1 Rf8 Bc5 Ba1 Bd4 Bc3 Bf6 Ra6 Nbc6+ Kb6 Nd8 Ka5 b6 Bc6 b7 Rb6 b8B Bb7 Ba7 Be6 Kg2 f3+ Kh1 f2 Kg2 Bh3+ Kf3 Rc6 Bd4 Ra6 Nd8f7 Rb6 Ne5 Qa8 Bf7 Rb8 Be8 Qa6 Bb1 Qc4 Bd3 Qc8 N5c6+
r1N3rq/5p1B/B1nK1Nn1/1b2P1R1/2rB1p1N/2Pk1P1N/Bn1n1NRb/8 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 e5 axb5 g5 h4 Be7 hxg5 Bd6 Qd2 Bf8 Qf4 exf4 Kd2 Ke7 Kc3 Ke6 Kb4 Kd5 g4 Ke4 g6 h5 g7 d5 g5 a6 b6 d4 b7 d3 f3+ Kd4 e4 d2 g6 d1R e5 h4 c3+ Kd5 Be3 h3 Ra2 h2 Bd4 Qh4 Nd2 Rh5 Ne4 Bd7 Nf2 Qg3 Ngh3 Rf5 Rg1 Ne7 g8B h1N c6 Rd3 g7 Qh4 c7 Qh8 c8N Rg5 Bh7 Bb5 g8B Rd1 Bb1 Ng6+ Nd6 Re1 Bh7 Re4 b3 Rg3 Rb2 Be7 Ba2 Bh4 Nc8 Rg4 Re2 Bg3 Rd2 Bh2 Rc2 Ke6 Kc5 Nc6 b8N a5 Nd7 a4 Nf6 a3 b4+ Kf5 Bac4 a2 Kd6 a1N Ba2 Nb3 Rg3 Nd2 Rg2 Ba4 Ba6 Bb5 Rc1 Rg3 Rcg1 Rg4 Ba7 Rc4 Bd4 Ba4 b5 Rg5 b6 Bb5 N2e4 Nf2 b7 Nd1 b8N Nb2 Nef2 Rg3 Nbd7 Rg5 Nc5 Rg4 Nce4 Rg5 Kc7 Ke6 Ng3 Rg4 Nf5 Rg3 Nh5 Kd5 Nh4 Nf8 Bab1 Rg8 Rg5 Ng6 R1g2 Ra4 Nf6+ Kc4 Kd6 Rb4 N2g4 Ra4 Ba2+ Kd3 Ng1 Rb4 Nh3 Rc4 Ngf2+
1BBk4/4n1pR/2bn3N/RP2P1PN/r2RR3/p2Kbb2/1Nnp4/N2Rq2r b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 c5 fxe5 c4 g5 c3 dxc3 Qb6 c4 Qc7 c5 Qb6 Qd4 Qd8 Qg4 hxg4 Kd2 d5 h4 f5 c4 a5 e4 g3 b4 d4 c6 f4 e6 g2 e7 a4 h5 f3 c5 f2 b6 d3 b7 a3 b5 Qd7 c7 Rh6 c6 Qg4 Nh3 g1N Nf4 Qf5 Bh3 Re6 h6 f1B h7 Rf6 h8N Rh6 Nf7 Qe5 Nh5 Be6 c8N Ra5 c7 Bd7 Nb6 Qc5 Nc4 Ra8 Nb2 Nc6 b8R+ Nd8 c8R Ra4 Ra8 Be2 Ra5 Qf2 Rc4 Nb7 Rd4 Bc6 Bc8 Qe1+ Ke3 Rh7 Nd2 Nd6 Nh6 Nf3 Nb3 Rh8 Rb1 d2 Na1 Bd1+ Kd3 Rh7 Ba6 Kd7 e8R Ne7 Bc8+ Kc7 Nc4 Rh8 Bb2 Rh7 Bc3 Rh8 Nb2 Rh7 Rd5 Nd4 Rh4 Bf3 Rd1 Nc2 Rd4 Ng6 Re5 Kd8 Bb4 Rh8 Bc5 Be7 Ba7 Bf6 Re6 Ne7 Bb8 Be5 Rh3 Bf4 Rh4 Be3 e5 Rf8 Rhe4 Rf4 Rf6 Rh4 Rf8+ Be8 Rh8 Rh1 Rh7 Bd7 Ra7 Bc6 Ra5
Nn3br1/2P1Ppb1/4B2B/pNpB2n1/bNR2P2/3q1r2/B6r/2K1kNNR b - - 0 1 illegal: No proof kernel
2q2R1N/1Bn3kR/3b4/B1r2p2/2R2PPp/3bq2n/2PB2pr/KN1BR1bR b - - 0 1 illegal: No proof kernel
2R2R2/1k3pp1/4Rqb1/K1NpP1qn/1B1R1B2/B1rPb2n/2PB4/r1q2B1N b - - 0 1 illegal: No proof kernel
N2r3B/5N1b/1qqRk1nR/4B2p/n3rn2/1PN2Kb1/1pBp1P1P/1N1BN3 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 dxe5 f5 gxf5 c4 Qd6 c3 Qa3 Ba6 axb5 Bb7 b3 Bc8 Qb2 cxb2 c4 Ke7 e4 a5 Ke2 d5 c5 h5 f6+ Kd7 e6+ Ke8 e5 g5 c6 d4 f7+ Ke7 c7 d3+ Kf3 a4 b6 a3 b7 a2 Be3 Nd7 b8B Nh6 Be2 Ra6 Bd1 Ng4 Bd4 Ra4 Ne2 Ra3 Nec3 Ra4 Re1 Bg7 f8N d2 Nh7 Nb6 Bc2 Ba6 c8B Bd3 Re3 Bf5 Rd3 Rb4 Bb7 Na4 Bd1 Qb6 Be4 Rd8 Bd6+ Ke8 e7 Kd7 e8N Ke6 Bc7 Bf6 Nd6 Be7 Nf7 Bd6 Re3 Bg6 Bec2 Bf5 Rd3 Rc4 Nf6 Bh7 Nfd5 Rb4 Ne3 Rc4 Bc5 Re4 Ng2 Qc6 Ne1 Qb6 Na3 Qc6 Rc1 a1Q Nab1 Qa3 Rd5 Qb4 Bd4 Qbb6 Bb8 Kf5 e6+ Ne5+ Kg3 g4 e7 Ke6 e8N Bc7 Rd7 Ng6+ Rd6+ Kf5 Kg2 g3 Kf3 g2 Bh8 g1N+ Kg2 Nh3 Kf3 Nf8 Rh6 Bf4 Bbe5 Bg3 Nc7 Ng6 Na8 Nhf4 Na3 Re8 Ra1 Ke6 Nab1 Rd8 Ra2 Nc5 Ra7 Na4 Rd7 Qcb7 Rd3 Q7c6 Rd6+
3k2qN/1RpbB3/P2N4/pNR2n2/2Br1B1P/b2p3p/4B1rP/3nKNnB b - - 0 1 illegal: No proof kernel
1N5N/1BKpb2q/2B3r1/rq5P/bB1PNnP1/R4R2/2n3B1/RRkn3r b - - 0 1 illegal: No possible last move, all moves rejected
R2b4/1K2k2B/Nb6/R2rp1P1/1B1Pq2R/1n1Rpr1P/b4N1r/1B1N2Nn b - - 0 1 illegal: No proof kernel
2K1B1Nq/6qp/P6N/2N2Pn1/rRRpq2P/1N5R/Bb1n3k/BbR1b3 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 cxb5 f5 e4 a4 e6 a3 e5 Ne7 bxa3 Ra7 a4 Ng8 a5 Ra8 g4 Ba3 f4 Bc5 g5 Bd6 Qd3 Bf8 Qe4 fxe4 Kd1 Ra6 Kd2 Rd6+ Ke1 Rd3 f5 Rh3 Ke2 Rh6 Ke1 Rf6 gxf6 Bb4+ Bd2 Bd6 Bc1 Bf8 Ke2 g5 Ke3 c5 a4 d5 h4 g4 Kf4 d4 f7+ Ke7 a6 g3 a5 g2 b6 e3 a7 e2 a8R e1B a6 c4 b7 c3 Nf3 g1Q Rh3 c2 Nbd2 Qg6 Nb3 Qe8 Ng5 Nh6 Bb2 Nc6 b8R Na5 Rc1 Bb7 Ba1 Be4 Bc4 Qg7 Rb4 Qd8 Bd5 Nc4 Rc8 Nd2 Rcc4 Rg8 Nf3 Qe8 Nh2 Qh8 Ng4 Rg5 Nh2 Rg3 Ng4 Rd3 Na5 Ra3 Nb3 Ra4 Kg5 Bg7 f8N Nf7+ Kf4 Ng5 Nh6 Bd3 Nd7 Bf8 Ndc5 Qf7 Bg2 Qfg7 Bd5 Kd8 e7+ Kc7 e6 Kd6 e8B Be4 Rd1 c1Q e7 Bb1 Bg8 Qc2 Rc1 Ra5 Bh5 Ra4 e8N+ Ke7 Nf6 Kd6 Be8 Be7 Kg4 Ke5 Kh5 Kf4 Bgf7 Bg3 Nfg8 Kf3 Be6 Kg2 Kg4 Be1 Kf4 Ra3 Nf6 Ra4 Ke5 Bd6+ Kd5 Be7 Kc6 Qe4+ Kc7 Kg1 Nfg8 Kg2 Rd3 Kh2 Bd5 Bd8+ Kc8 Ba5 Rb7 Bc3 Rbb4 Bb2 Rh3+ Kg2 Na5 Qe7 R4c2 Qee5 Ba2 Qeg7 Nab3 Kg1 Rcc4 Kg2 Rd3 Kh2 Rh3+
8/B1NK2NP/1r3pp1/3b2r1/pkq5/RRNP1N1P/1r1R1r1b/nB2R1B1 b - - 0 1 illegal: No possible last move
1N6/1Kp1BP1R/1B1R3p/3r1rPp/1Nr1R2N/7k/BBPbnr1b/6Nn b - - 0 1 legal: proof: d4 e5 a4 b5 axb5 f5 g4 g6 e4 Be7 exf5 e4 Qf3 Bf8 Qh3 Qe7 Qh5 Qe5 dxe5 gxh5 Be3 Bb7 Bc1 Bd5 g5 Bc4 h3 Be2 Be3 Ba3 Bc1 Bg4 hxg4 Bf8 g6 Ke7 Ke2 a5 Ke3 d5 Kd4 a4 Kc5 a3 b4 h6 f4 a2 b6 d4 b7 e3 g5 d3 e6 d2 g7 d1R f6+ Ke8+ e7 Kd7 b5 Ke6 b6 Kf5 Bc4 Kg4 f5 e2 Rh4+ Kg3 Bb2 e1B Re4 Bd2 Nc3 Nd7+ Kc6 Nc5 e8N Bd6 b8B Na6 b7 Bc1 Ba7 Kg2 b8N Nc5 Bb6 Ra7 Nd5 Bh2 Nd6 Na4 Bb3 Ra8 Kb7 Ne7 g8R Nc3 Rg7 Ra5 Rh7 Ne2 Rb1 Rf1 Nf3 a1R Bc4 Be3 Rd1 R1a4 Ba2 Rc4 Nb4 Rd8 f7 Kh3 f8B Rf2 f6 Nf5 f7 Nfg3 Be7 Nh1 Nf5 Rd7 Rd5 Bd2 N5h4 Rd6 Rd3 Rf6 Rdd4 Rff5 Rd6 Rad5 Ng1+
BRn3R1/Pb1K3n/1pR3B1/1PNN3q/n1kP3N/1r2R1r1/3Bb3/1rN1b1r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 d5 hxg5 d4 b5 d3 Qg4 Bg7 Qb4 axb4 cxd3 Ra6 d4 Bf8 d5 Ra8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 f4 e5 d4+ Kb6 a4 c5 g6 h6 d6 c4 d7 e4 g7 b3 f6 c3 Kf5 h5 Ke6 h4 g4 e3 g5 c2 g6 e2 f5 e1N f7 b2 f6 h3 Bg2 h2 Nc3 b1R Nge2 Rh3 Ra3 Rg3 Bd2 Ne7 g8B c1R g7 Qe8 Bh7 Na6 g8R Nf3 Bg6 Rg1 Nc1 Ka5 Rb3 Bh6 f8N b6 f7 Bb7 d8R Nc5+ Kd6 Be3 Nd7 Ng5 f8N Nh7 Rb8 Bf2 Bc6 Be1 Nd5+ Rc3 Ra3 Nc8+ Kc7 Rg3 Rf1 h1B Rf6 Bf3 Rb3 Ne4 Nc5 Be2 Rd6 Qe5 Kd7 Qh5 Ra3 Rb4 Rf6 Rcb3 Rd6 Rb1 Re3 Nc3 Rde6 Ba6 Bb7 R4b3 Rc6 Ra7 Bd3 Ra8 Ng6 Rg1 Nh4 Ra7 Ne7 Kb4 Bg6 Kc4 a5 Na4 Nd5 Rg3 Ke8 Rg1 Ba8 Rg7 Kd8 Bb7 a6 Rg3 a7 Rg1 Bf5 R7g4 Bg6 R4g3 Kd7
4Brk1/5r1n/N1Rn1n1p/P1nBP2B/1bbBR3/N4KNb/1b2RN1P/1q6 b - - 0 1 legal: proof: c4 a5 b4 e5 bxa5 g5 f4 d5 fxe5 Bb4 cxd5 Bf8 Qa4+ Ke7 Qg4 Ke8 Qf4 gxf4 Kf2 b5 g4 f5 e4 Kf7 a4 c5 d4 h6 a6 f3 a5 f4 d6 b4 d7 b3 a7 c4 g5 b2 g6+ Kg7 d5 c3 e6 c2 e7 Qe8 d8N Rh7 d6 Qa4 e8B Bf5 d7 Bb4 e5 Bh3 Nf7 Qb3 d8R Nd7 Be3 c1B Nd6 Ndf6 Na3 b1N Ra2 Nc3 Bd4 Nb5 Rc8 Bb2 Ne4 Nd6 Ne2 Qc2 Rc4 Qb1 Rc6 Kh8 Bg2 Rf7 Re1 Nh7 N2g3 Ngf6 g7+ Kg8 Bf1 Rb8 a8N Rd8 Nc7 Rc8 Kg1 f2+ Kh1 f3 Na6 Rd8 Be2 f1N Nf2 Nd2 Bd1 Nb3 Re4 Nc5 Kg1 B2c3 Rae2 Bb2 Nfh1 Bd2 Kf2 Bb4 Ke3 f2 Kf3 f1B Nf2 Nf8 Rc2 Bc4 Rce2 Kh7 g8B+ Kg7 R4e3 N8h7 Re4 Rc8 Bd7 Rcf8 Be8 Rb7 Bgf7 Kh8 Bh5 Kg8 Bb3 Rbf7 Ba2 Bb5 Be6 Bc4 Bd5
1B6/1BN3NR/R2r4/B1k1R1pr/2nbpRb1/1Pq1q1PP/4N1n1/1K1N2nb b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 b5 dxc5 h5 Qg4 b4 Qg3 b3 axb3 h4 b4 h3 b5 Na6 Qf3 Nb8 g3 Nc6 Qd5 Nb8 Qg2 hxg2 Kd1 g5 f4 a5 c4 e5 Kc2 Ke7 f6+ Ke6 f5+ Kf7 b3 d5 c6 e4 c5 a4 c7 a3 b6 a2 c6 d4 b7 Bg7 Bd2 Ra7 Ba5 Ra8 Nc3 Nd7 b8B Ne5 Ba6 Ne7 Nge2 g1N Nd1 Nd5 Bb7 d3+ Kb2 Bd7 c8R d2 c7 Ne3 h3 Qe7 Re8 Qc5 c8R Ng2 Rc7 Ra6 Re7+ Kf8 f7 Nc4+ Kc2 Bb2 Re5 Bd4 Rh2 Rd6 Rh1 Nf3 Rf1 Ng1 Rf4 Bc8 Rce7 Rh5 Rd7 Bc3 Rc7 Qe3 Rce7 Bd4 Rd7 Kg7 f8N+ Kf6 Rh7 Bd7 Ne6 Bc8 Rh6+ Ke7 f6+ Kd7 f7 Ke7 Rc1 a1Q f8N Qac3+ Kb1 Bd7 Ng7+ Be6 Rb5 Bg4 Nfe6 Bf3 Rh7 Kd7 Ba6 Kc6 Nc7 Bg4 Rb6+ Kc5 Bb7 Bf3 Nf2 d1B Ra6 Ne1 Rc2 Bh1 Ra2 Ng2 Ra4 Rd7 Rb4 Rd5 Rbb6 Rd7 Re6 Rd6 Re5+ Rd5 Nc1 Bf3 Nd1 Bg4 Re7 Rd8 Ne2 Rd6 Re5+
b2b1Bkr/1pBRb2N/pP4Bq/Nbb4r/1N6/2RN3P/n4P1R/Kn2B3 b - - 0 1 illegal: Other
1N6/B6N/2BPpbK1/Nr1rPR2/1b4Np/Bq1Rn3/P1n1R1k1/B2bn2n b - - 0 1 legal: proof: e4 a5 c4 f5 h4 g5 hxg5 d5 cxd5 a4 e5 a3 Qg4 Ra4 Qe4 fxe4 bxa3 Ra8 a4 Nd7 a5 Nb8 Ke2 Kf7 Ke3 Kg6 Kf4 h5 d4 c5 g4 b5 d6 h4 d5 b4 a6 c4 a7 c3 d7 c2 Nd2 e3 Nc4 b3 Rh2 b2 Na5 b1N Bb2 c1B Bb5 e6 Bc6 Nd2 Nh3 Qb6 d8B Qa6 Bb6 Kg7 g6 Kh6 g5+ Kh5 g7 e2 g6 Nf6 g8R e1N g7 Bd6 Rd8 Bb4 g8N Ng4 Nf6+ Kh6 f3 Bd7 Re2 Qb5 Nf2 Ne3 Nh7 Kh5 Rf8 Ne4 Rf5+ Ng5 Rb1 Rd8 Ba1 Na6 Rb3 Rab8 a8N Qd3 Ra3 Qb3 Ba7 Rb5 Nb6 Be8 Nd7 Bf7 Rf6 Ne4 Nb8 Bg6 Rf7 Ng3 Rf8 Nh1 Rf6 Qb1 Rd3 Qb3 Rf5+ Kh6 Ke4 Bh5 f4 Bca3 Rg5 Be7 f5 Nb4 f6 Nbc2 f7 Bf6 Kf4 Bb4 Rf5 Rd7 f8B+ Kg6 Red2 Bd1 Re2 Bc3 Ng5 Kh5 Ba3 Bb4 d6 Rdb7 Ke4 Rd5 Nh7+ Bg5 Nh3 Kg4 Nf2+ Kg3 Red2 Bd8 Re2 Kg2 Kf4 Bb6 Kg5 Bd8+ Kh5 Rb5 Kg6 Bf6 Ng4+
2N5/1knK2Bn/1qN2RPp/2qpb3/PBr5/3b1RBr/2p3RP/nBRN4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 f4 Ra8 fxg5 Kd7 d4 e6 d6 Kc6 d5+ Kb5 d7 Kc5 d6 Kc6 Qd5+ exd5 Kd2 b5 Kd3 f5 Kd4 h6 Ke5 b4 Ke6 b3 e4 b2 a4 f4 g4 f3 g6 f2 g7 Kb7 e5 c5 g5 c4 a6+ Kc6 a7 c3 Bd3 f1N Ne2 Kb7 Ra3 Nd2 Nd4 Nf6 g8R Kb6 Nc6 Nf1 Bf4 Nd2 Bg3 Nh5 Rc1 Bb7 g6 Be7 Rf8 Nb3 Rf6 Qc7 d8B Na6 d7 Bd6 Be7 Rae8 d8B Na1 a8R Rhf8 Ra2 Rf7 Rf3 Nf6 Ra7 Rh8 Bf8 Nh7 Bg7 Re8+ Be7 Rf4 Ra8 Rh4 Rf6 Rg8 Raf8 Rh3 Rf3 Rh8 R8f6 Rc8 Bef8 Nb8 Bc2 Ba6 Bf5 Qa7 Be4 Bc7 Bb4 Kb7 Ke7 Bd3 e6 Na6 Kd7 Bf4 e7 Nc7 e8N Qc5 Bf5 Be5 Nd6+ Ka8 Nd2 b1Q N2c4 Qb2 Ne3 Qf2 Rb2 Qb6 Nd1 Qfc5 Ne8 Kb7 Rg2 Bb5 Bc2 Bd3 Bb1 c2 Nd6+ Ka6 Nf5 Kb7 Nfe7 Rf8 Rd6 Rf4 Rf6 Rc4 Nc8
1rbR4/k1K2B2/1Nppqn2/RqR3nB/2B2b1p/P2P2p1/2q2N1P/2R1BN2 b - - 0 1 illegal: No possible last move, all moves rejected
2qB1q2/1PN1qPb1/RK1n2n1/RBP4n/1Q1q1k2/R1N4b/1q3P2/N1B4r b - - 0 1 illegal: No possible last move
1R6/R2q1PRB/k2Pr2N/n1r1Pn2/1B1BP1nr/1r1N4/2r1n2Q/2N2b1K b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 d5 cxd5 g5 h4 gxh4 g3 Bh6 fxe5 f4 Nh3 f3 Ng1 Bf4 gxf4 Bf5 Qa4 Bh3 Qd1 Bc8 Kf2 Kd7 b4 c5 e4 Kc7 d4 Kb7 f5 h5 f6 a5 b6 h3 b5 c4 d6 h2 d5 h4 d7 c3 f7 a4 d6 c2 Qe1 a3 Ne2 a2 Bd2 c1N Nbc3 h3 Nd4 Nf6 Nce2 Rh6 Bb4 Ra3 Nf5 Rb3 Qd2 Nc6 Rg1 h1R Rg7 h2 Bh3 Na5 Bg4 Qc7 d8B Qd7 Bc7 Rg6 Nh6 Rd1 Kg3 f2+ Kg2 f1N Kh1 Re1 Be6 Ng4 Bf5 Re6 Bh7 Rd1 Qb2 Rd5 Bb8 Rc5 Ba7 Nfe3 Qc2 Nd3 Nc1 Nf4 Qf2 Ne2 Qg2 Ka8 Qh3 Ba6 Qh5 Kb7 Qh3 Kc8 b7+ Kd8 b8N Kc8 b6 Kb7 Nc6 Nf5 Qg3 Bd3 Qg1 Ka6 b7 Bb5 b8R Bc4 Kg2 h1R Qh2 Bd3 Bb6 Rc2 Bd4 Bc4 Qg1 Rh4 Qh2 Bd3 Kh1 Bc4 Rb1 a1R Rb2 Raa3 Ra2 Rbc3 Ra1 Rab3 Rd8 Neg3+ Kg1 Kb5 Bbc5 Bf1 Rb8+ Nb7 Ra7 Ne2+ Kh1 Rc4 Ba3 Rc5 Nb4 Kb6 Nbd3 Kb5 Rh8 Na5 Bb4 Kb6 Rb7+ Ka6 Rhb8 Nf4 Rc7 Ne2 Ra7+
1r2RR1b/7q/k3PQR1/2qBr2P/2n3N1/1pPBbP2/n6N/KNq2b1B b - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 h5 bxa5 e5 g4 f5 gxh5 Ke7 Be3 Ke6 Bd4 Kd5 Qd3 exd4 Qxf5+ Kc6 Qf3+ Kc7 Qf7 Kc6 Kd2 Kb5 Kc1 d5 Kb2 g5 e4+ d3 a4+ Ka6 h4 b5 c6 d2 c3 d1Q c7 d4 e5 d3 h6 d2 h5 g4 e6 g3 h7 g2 Nf3 g1B Nh2 Bg7 Qf6 Qd4 Bd3 Nc6 Ra3 Qf1 Ka1 d1Q Rb3 Bb7 c8R Ne5 Re8 Ne7 Ra3 Rg8 h8N Nc4 Ng6 b4 Ne5 b3 Neg4 Qc5 Rf8 Qc2 Ra2 Ka7 a6 Bh8 a5 Rg5 Ra4 Qfc1 Re8 Nd2 Rf4 Nc4 Rf3 Rb8 Rf4 Ka8 a7 Ba6 Rf3 Kb7 a8B+ Ka7 Bd5 Re5 Rf5 Bb5 a6 Nc6 Rf4 Kb6 a7 Nb4 a8B Na2 Rf5 Ka7 Rg5 Ka6 Rg6 Ne3 Bf3 Nc4 Bad5 Ne3 Bg2 Nc4 f3 Be3 Rg1 Qf2 Bh1 Qfc2 Be2 Qe4 Bd3 Qf5 Rgg8 Qh7 Rgf8 Na3 B3e4 Bf1 Bd3+ Nc4 Nh6 Bf4 Rg6 Be3 N6g4
3BB2b/2P3NR/N1Rr2r1/pPqkqr2/n2R4/6b1/1PP2q2/KNB1Q1n1 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 g5 f4 gxf4 g5 Bb7 h3 Bc6 Ra6 Bf3 Ra1 Bg4 hxg4 Qb6 Nd2 Qc7 Nb1 Qd8 Kd2 Kf7 Kc3 d5 f6 Ke6 g6 a5 g5 h5 g7 f3 f7 f2 c6 h4 c7 d4+ Kb3 d3 Ka2 h3 g6 h2 Qh5 d2 Qg4+ Kd5 Qg3 d1R Qh4 e5 Qf6 e4 Qh4 e3 Qh7 e2 Bh3 e1B Qh4 f1Q Ne2 Ne7 g8N Rh6 g7 Na6 Nd4 Nc5 Nb3 Qd6 Bd7 Bg3 Be8 Rg6 Nh6 Qe5 g8R Nc6 Nf5 Nd4 Ng7 Na4 Nc5 Nf3 Na6 Qf2 Qb4 Be7 f8B Bf6 Be7 Ng1 Qe1 Rd8 Rh8 Rd6 Rh6 Rd4 Rh7 Rf4 Bd8 Rf3 Rh6 Rf5 Rh7 Ne2 Rg1 h1Q Rf1 Qc5 Rf3 Qh5 Rc3 Qf2 Rc6 Ng1 Kb3 Nb6 Ra4 Qg5 Rb4 Na4 Ka2 Qge3 Ka1 Qc5 Nh5 Bh8 Ng7 Rgg5 Rg4 Rgg6 Rd4+
1R1k2B1/2NRN1r1/2npP1P1/1P4nr/1P1bb3/R3bBKQ/N4B2/1q1n2b1 b - - 0 1 illegal: No possible last move
1n6/1N1B3R/1N3qkr/1K3P2/2BPrB2/R1P4q/1PpN2Qq/1Rn1rb1n b - - 0 1 illegal: No possible last move, all moves rejected
Kb3QRb/1nq1RPN1/P1q3PP/3b4/1N2Bpk1/3p1B2/B1N2R2/4r1rn b - - 0 1 legal: proof: e4 f5 f4 a5 d4 g5 b4 h5 bxa5 c5 dxc5 h4 Qd3 h3 exf5 Ra6 f6 Rb6 Qh7 Ra6 f5 Ra8 Bf4 gxf4 Nxh3 Bg7 Ng1 Bf8 Kd2 b5 Kd3 e5 Ke4 b4 Kd5 b3 h4 b2 g4 d6 a4 e4 c4 e3 a6 e2 a7 e1B a5 Nc6 g5 Bf2 h5 Be7 f7+ Kd7 f8N+ Ke8 f6 Bd7 g6 Nh6 a6 Bg3 Qg8 Nb8 c6 Rh7 c5 Qa5 c7 Bf5 c8B Be1 Bg2 Ng4 Ra2 Qc7 c6 Bc3 Nf3 Nd7 Ne1 Nc5 Nd3 Nf2 Nb4 Nb7 Re1 Nh1 Na3 b1Q Nac2 Qc1 f7+ Kd8 Re3 Bh8 Be6 Rc8 a8B Be4+ Kc4 d5+ Kb5 d4 h6 d3 Bd5 Bc5 Ne6+ Ke7 Qf8+ Kf6 Ng7 Kg5 Rb2 Bf3 Ba2 Bd5 Re7 Ba7 Be4 Bb8 Bg2 Qd8 c7 Kg4 Kb6 Qd7 Be4 Re8 c8R Qa4 Rd7 Re7 Bg2 Re1 Re7 Rg1 Rd8 Bd6 Ka7 Qc6 Nd4 Qc7 Rf2 Q1c6 Ndc2 Be5 Nf5 Rg7 Rde8 Rg8 Ng7 Bd6 Rb8 Qb5 Ree8 Bc6 Re5 Qe7 Qe8 Nc5+ Bb7 Rf8 Rc8 Bb8+ Ka8 Qc7 Qe7 Re8 Qd6 Re7 Rg8 Be4 Bbd5 Nb7 Qd8 Qbc6 Qf8 Rd7 Re6 Rd6 Re7 Re6 Re8 Bf3 Re7 Ree1 Be6+ Kg5 Bf5 Bd5 Bfe4 Kg4 Bgf3+
n2qNqn1/1Np5/2p1PqPR/5Nb1/R2P1n2/2k2r1P/BB2rR1Q/KB6 b - - 0 1 legal: proof: g4 g5 a4 h5 gxh5 e5 c4 b5 f4 Bb7 fxe5 Bh6 c5 Bf8 axb5 Be4 c6 Bg6 hxg6 dxc6 b4 Kd7 d4 Ke6 Kd2 Kd5 Kc2 Kc4 Kb2 f5 b6 a5 e6 a4 b5 f4 e4+ Kb4 e5 f3 e7 f2 e8B g4 b7 g3 b6 g2 Nc3 Be7 Qh5 Qc8 Bf7 Bd6 Bd3 f1Q Bb1 Nd7 b8R Ndf6 b7 Nd7 Bfa2 Be7 e6 Qff8 Nge2 g1N Ng3 Qcd8 Nce4 Nh3 Nd6 Bg5 Ngf5 Nb6 Ne8 Nf4 Rc8 Ra6 b8N Na8 Nd7 Rh7 Rf1 Rf7 Nc5 Ra5 Nb7 Re5 Rf2 a3+ Kc2 Rf6 Bb2 Re2+ Kc1 Rf7 h3 Rf6 Qf3 Rf7 Qh1 Rf6 Qh2 Rf7 Bc4 Qf6 Rd8 a2 Rd5 Qd8 Rd7 Rf6 Rh7 Rf7 Rh6 Qf6 Ba3+ Kc3 Bd5 Qd8 Bb3 Qf6 Bb2+ Kb4 Qg3 Q6g7 Qh2 Ng2+ Ne3 Rf3 Be4 Nf4 Nf5 Qgf6 Rb1 a1Q Bbd5 Qa4 Ra1 Qb3 Kb1 Qc4 Ra6 Qb5 Ba2 Qd5 Ka1 Qdd6 Beb1 Qdd8 Ba3+ Kc3 Ra4 Ne7 Bc1 Ng8 Bb2+
R1bR1rBB/r4P1k/2pn2N1/3nBN1p/2rb1P2/1p2PP2/1Q3KNr/4R3 b - - 0 1 illegal: No possible last move, all moves rejected
8/1k3pQ1/Np1p4/R1R2b1P/KNpnP3/N1bB1R2/Pq1rpB1P/6nB b - - 0 1 illegal: No proof kernel
RB2kB2/3b1N2/1PPKQq1R/b2N4/Rn2P3/b2PN2B/nrr1b1b1/6rq b - - 0 1 illegal: No proof kernel
4QnB1/bRP4N/1B5r/1bKP1q2/4k3/r1nN3P/Rnn2Pnq/r1RN2B1 b - - 0 1 illegal: No proof kernel
1N1Bqbb1/2n1P2b/P2N1Kb1/b1r1BRN1/P1B5/1Rb2Rr1/1k3rP1/2n3Q1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 Ke7 Kg3 Ke6 Kh4 Kd5 e4+ Kd4 a4 c5 e6 b5 d3 h5 e7 Ra6 e8N f5 e5 Rf6 a6 b4 e6 f4 g6 c3 Kg5 c2 g7 h4 e7 f3 Qe1 c4 Nh3 c3 Nd2 f2 Nd6 b3 Rh2 b2 N2c4 b1B Na5 Nd7 Be2 f1B Nac4 Rh5+ Kg4 Rc5 Nf4 h3 Kh4 Ne5 Kg5 Be6 Ra2 Qe8 Bb2 c1B Ne4 Bd2 Ned6 Bf7 Rh1 h2 Nb6 Bb3 Rg1 h1R Nd7 Rh3 Ra3 Rf3 Nb8 Rg3+ Bg4 Be2 Rf1 Bf3 Rf2 Be4 Qg1 Bh7 Ba1 Be1 Nh3 Rf7 Bb2 Nf6 g8R Nd5 Rg7 Rff3 Rf7 Nc7 Rf6 Bbg8 Rf4+ Kd5 Kf6 c2 Ng5 c1B Bd7 Ba5 Bb5 Bcd2 Ba1 Nc6 Be5 Nd4 Rf1 Nb3 Rf2 Rc6 Bc4+ Kc5 Rf1+ Kb4 Rf2 Bc3 Rf1 Re3 R1f3 Re2 d4 Nb5 d5 Rc5 Nh3 Nc1 Ng5 Bbg6 Rf5 Rb2 Nde4 Re2 d6 Rf2 d7 Nc7 d8B Be6 Bd3 Bc4 Nd6 Bcg8 Ra1 Kb3 Bc4+ Kc2 Ra3 Kb2 Rb3+
1r1rk1RB/3r1r1N/Rn3qRN/3qb2K/2rr4/1P2nPP1/bN1PQBB1/8 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 Ke2 e5 Kf3 a5 Kg4 c5 d6 h5+ Kf3 e4+ Kf4 c4 f6 c3 Kg5 c2 b6 e3 f3 e2 b7 e1R g3 a4 Bc4 h3 Bb3 a3 Ra2 h2 Ne2 h4 Rg1 h1R Be6 h3 Nbc3 h2 Bh3 Nd7 b8B Nb6 Nd4 Nh6 Na4 Re4 Re1 Nf5 Ba7 Be6 Bg2 Bg7 Qe2 Ne3 Nf5 Rd4 Nh6 Rb8 Kh5 Bb3 Ra1 Ba2 b3 Qd7 Bb2 c1R Bc3 Rc2 Bb2 Rcc4 Bc3 Rf8 Nb2 Rf7 Rec1 Rf4 Be5 Rfd4 Rc3 Qb5 Rc2 Qd5 d7+ Kd8 Rc3 Rc1 Rc2 Rcc8 Rc6 h1R+ Kg6 Rhe1 Kh5 Rcc4 Re6 Rec1 Rd6 R1c3 Rc6 Rcd3 Rd6 Re7 f7 Bf6 f8N Rf7 Nh7 Ke7 Ng5 Rd8 Rc6 Bg7 Rg6 Bh8 Bf4 Be5 Nh7 Rh8 d8R Rg8 Rc8 Rd8 Bg5+ Ke8 Bf6 Rf4 Rg5 Rdd4 Bh8 Rd7 Rg6 Rff7 Re1 Bb1 Rh1 a2 Rh3 a1Q Rcc6 Na8 Ra6 Ba2 Bc5 Nb6 Rh4 Qb1 Rhg4 Qf5+ R4g5 Qf6 Rg4 Rf4 Bd4 Nc2 Bf2 Ne3 Rg7 Rfe4 R4g6 Red4 Rg8+
2b5/4rRqr/N1K5/2P3Q1/rrqr4/R2PPBPN/1RNBB2r/nk3nb1 b - - 0 1 illegal: No proof kernel
5r2/nBQNKRr1/1P2P1P1/qNn1R2P/1k5N/2Bb4/R2b4/rb1n1bBn b - - 0 1 illegal: No proof kernel
3B1RB1/r2bK3/N2nP3/P1R1n2n/1rq1P1kB/2P1R2N/2Q2qN1/1nbb3b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kf2 Ke7 Ke3 Ke6 Kf4 g5+ Kg4 f5+ Kf3 d5 h4 b5 a4 f4 Kg4 b3 h6 d4 a5 d3 c3 b4 h5 b2 h7 d2 h6 f3 e3 f2 c6 b3 c7 Ba3 Nh3 Nc6 Qc2 Bd7 c8R Qc7 Rf8 d1B+ Be2 f1B e4 Ra7 Nd2 b1N Rh2 b2 Nb3 Bg2 Nc5+ Ke7+ e6 Nd2 Kf5 b1N Na6 Nc4 Bh5 g4 Bg5+ Kd6 Bf7 g3 Bh4 Nf6 Bg8 Bh1 Kg6 Ke5 Kf7 g2 Ra2 Nb4 Ke7 g1Q Re2 Qgb6 Rb2 Qf2 Re3 Nd3+ Rb4 Nd6 Rc4 Qc6 Rc5+ Qd5 Bf7 Rg8 h8B Bc1 h7 Rg1 Bg7 Rf1 Bh6 Nh5 h8N Re1 Bg8 Re2 Qa4 Rb2 Qc2 Rb4 B6g5 Bd2 Ng1 Bc1 Bf6+ Kf4 Nh3+ Kg4 Ng6 Qc4 Ngf4 Ne5 Ng2 Nf3 Be5 Nb7 Bc7 Ne5 Bb6 Nd6 Bd8
NN1RN2b/q2R4/kn2P3/P2Pr2B/nB5q/BK5b/Pbr2Q1p/1rR3n1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 b4 Bg7 bxa5 Bf8 d4 Kd7 Kd2 f5 Kc3 c5 g4 Kc7 e4 h5 g6 b5 g7 Kb7 e5 h4 g5 c4 g6 b4+ Kc2 f3 d6 f2 d7 c3 d5 b3+ Kd3 h3 Kc4 c2 Ba3 c1B Rh2 b2 Be7 f4 Qb3+ Ka6 Nc3 b1R Nge2 f3 Qc2 Rh5 Ba3 Ne7 g8R Bb2 Na4 Bg7 Nb6 Bh8 g7 Ra7 Bg2 f1N Na8 f2 Kb3 Ng3 Nd4 f1Q Qf2 Qg1 Bf3 Rc7 Nc6 Ne2 Rf8 Rg5 g8N Rf5 Rg2 h2 Nf6 Rh5 Ne8 Rf5 Qg3 Qa7 Qf2 Ng1 Rg7 Rg5 Bh5 Rf5 Nd4 Rc2 Rgf7 Bb7 Bb4 Nc8 Nc6 Qh4 d8B Nd7 Bde7 Ndb6 e6 Na4 Bec5 Re5 Rd7 Ncb6 Ba3 Bc8 Bcb4 Bb7 Nd8 Bc6 Rg8 Bb5 Nc6 Bf1 Rf8 Rbe1 Rc1 Rd1 Rd8 Bg2 Rf7 Bh3 Rfd7 Rc4 Rc3 Rb1 Rc1 Rc2 Nb8+
4N2r/1P1BRn2/Qr1bPq2/1qrP1b1p/2N2B1k/2nb3P/6K1/B1Rq1NR1 b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 g5 a4 d5 cxd5 Nh6 axb5 Ng8 f4 gxf4 Kf2 Ke7 e4 f5 b4 h5 g4 a5 b6 c5 b7 c4 h3 a4 b5 a3 b6 f3 e6 Kf6 e7 a2 e8R c3 Bc4 f4 e5+ Kg5 Re7 c2 Na3 Nf6 Qf1 Nbd7 b8B Ra6 b7 Rb6 Ne2 Kh4 Bb2 c1R Bb5 Rc5 Rc1 a1Q g5 Ne4+ Kg1 f2+ Kg2 Qe8 g6 Nc3 g7 Qg6+ Ng3 Qf6 g8N f3+ Kh2 Qb1 Ba1 Qb3 Qd3 f1B Rg1 f2 Nc4 Qd1 Qg6 Bd3 Nf1 Bg7 Kg2 Bf8 Re8 Bd6 Re7 Nf8 Ba4 Ne6 Bd7 Ng5 Bc7 Nf7 Bb8 Qf5 Nf6 Qf4 Ne8 Qh6 Bc6 Bcf5 Qe6 Qf6 Bd7 Bc7 Qc6 Bd6 e6 Rbb5 Qa6 Rb6 Nh2 f1Q+ Kh1 Qfe1 Nf1 Qee2 Bc7 Qb2 Bb8 Qb5 Kg2 Bh2 Bf4 Bg3 Be3 Bd6 Bf4
KR4bR/1PN3r1/pN3bPn/Bq2PBk1/1Bn1rQP1/3n3R/7N/2rn2n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Ke7 Kf3 f5 e4 h5 g4 c5 d4 c4 b4 c3 b6 h4 g6 Kf6 b5 a6 d6 h3 d5 h2 b7 c2 b6 Be6 d7 Kg5 d6 Be7 Bb2 c1R Qd2 Qe8 d8B Nd7 b8R Nh6 Bc3 Bg8 Bd3 Rh7 Ra3 Rg7 Bb4 Bf6 Nc3 Nc5 Na4 Qb5 d7 Ra7 Bb1 Nd3 e5 Rac7 b7 R7c4 Bda5 Re4 d8N Bb3 Qf2 Bg8 Kg2 f3+ Kg3 Re3 Nb6 Re4 Qd4 f2 Kf3 f1N Ne6+ Kh4 Qc4 f4 Nc7 Ne3 Ke2 f3+ Kd2 f2 Nf3+ Kh3 Bc2 f1N+ Kc3 Nd1+ Kb3 Qc5 Ka4 Nfe3 Qd4 Nc4 Bb1 Nf4 Qe3 Ne2 Qf4 Ng1 Bc2 Re3 Bf5 Re4 Rd3 Bf7 Rdd8 Qd5 Rh8 Bg8 Be7 Qd7+ Kb4 Qa4+ Kc5 Qb4+ Kc6 Qc5+ Kd7 Qc6+ Kc8 Qb5 Nd2 Kh4 Beb4 Nf2 Nf1 Nd3 Ra8 Bd5 Kb8 Bg8 Qf3 Kg5 Ka7 Nc5 Rb8 Nd3 Ka8 Nh3 Rg1 h1N Nh2 N1f2 Rg3 Ng1 Rh3 Nd1 Qf4+
R4bb1/2Q1P3/2Br1r1P/r1N1qb1N/2PnPRB1/b2K1n2/NR4p1/k1B3n1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 c5 d4 e5 dxc5 Qf6 fxe5 Qd8 Kd2 Ke7 b4 Ke6 h4 Kd5 e4+ Kd4 h5 g5 b6 a5 b7 f5 h6 d5 e6 g3 e7 g2 b5 a4 b6 g4 c6 g3 c7 f4 Rh2 a3 Qh5 a2 Be2 f3 Bd3 f2 Qf5 f1R Nc3 Ra5 Qg6 Nc6 b8N Rf6 b7 Qd6 Ke2 Bf5 c8B Qe5 Nh3 g1N+ Kd2 g2 Rb1 a1B Qh5 Bb2 Na6 Ba3 b8R Rd6 R1b7 Nf6 Rb5 Nh7 Nf4 Ng5 Rb2 Rf6 Bb5 N5f3+ Kd1 Rg8 Rh4 Rgg6 Na2 Rd6 Ba4 Rgf6 Ra8 Kc4 c3 d4 Nc5 d3 Bd7 Ncd4 Bac6 d2 Qg4 Bh7 Qg3 Bg8 Bc8 Nde2 Kc2 d1B+ Kb1 Ned4 Nh5 Ba4 Rf4 Bb5 Bf5 Ba6 Bg4 Bc8 Nb7 Kd3 c4 Bf5 Qf2 Nde2 Qb6 Ned4 Qc7 Bge6 Nb4+ Kc3 Nc5 Bg8 Re2 Ne6 Nca6 Bb2 Na2+ Kb3 Rf2 Ka3 Kc2 Ned4+ Kd3 Kb3 Bd2 Ba3 Nc5+ Kb2 Bc1+ Ka1 Rb2
q1Rq4/P3b1R1/bqBr1kPN/r1P2BPK/2NRq2B/2q4n/1N5p/n5Q1 b - - 0 1 illegal: No possible last move, all moves rejected
b7/3rPp2/1KRb4/2RPNN2/4NQb1/1BBrrP2/3q1PRr/kq1n2nB b - - 0 1 illegal: No proof kernel
b2Bnq2/P2q4/1nB3N1/pR1Nb1RK/PQ5n/b2k2P1/2PBrq1N/5nR1 b - - 0 1 illegal: Other
1QKBB3/r5N1/5bpb/1PNr2R1/2Rn3B/3r2PP/3bPrn1/r1Rbk1N1 b - - 0 1 illegal: No proof kernel
1r3q2/NkQK4/1bNpn1n1/2B4b/B1R1n2P/Rq3Pp1/3P1rRP/N1q1B3 b - - 0 1 legal: proof: e4 c5 a4 h5 b4 f5 bxc5 fxe4 g3 b5 axb5 h4 gxh4 Qb6 Qg4 Qc7 Qd1 Qd8 Ke2 g5 Ke3 a5 Kd4 e5+ Kd5 g4 c4 e3 b6 e2 c6 e1Q c7 e4 c5 e3 b7 e2 c6 g3 Qb3 a4 Nf3 a3 Qb6 a2 Ne5 Bc5 Rg1 d6 Rg2 Qd1 Na3 e1Q Bb5 Bg4 c8N Nd7 b8B Nf8 Ba4 Ng6 Na7 Bh5 Ke6 Nf6 Nc2 Ne4 Ba3 Rf8 Qa5 Bb6 Bc5 Qf1 c7+ Qb5 c8R Qc1 Bc7 Rb8 Nec6 Qb4 Rb1 a1N Rb3 Rf4 Ra3 Nb3 Na1 Nd4+ Kd5 Kd7 f3 Ne6 Bf2 Rg4 Be1 Qf8 Bd8 Qbb2 Bg5 Qbb1 Be3 Qbc2 Bc5 Q2d1 Re8 Kc7 Rc8+ Kb7 Nd4 Ka8 Kc6 Qb3 Kd7 Kb7 Ndc6 Rg5 Qc3 Rd5 Qf6 Rd3 Qe7 Re3 Qg5 Re2 Qd8 Rf2 Rc7+ Ka8 Rb7 Ba5 Rb4 Bb6 Rc4 Kb7 Qc7+
1BKnb3/N2B1P2/1p1rP2q/1P1RNRqR/4pQN1/B2b1P2/2kn1n2/2rr4 b - - 0 1 illegal: No proof kernel
1b1rr3/3P1nR1/4P3/RB1PBnkN/pKn1P1B1/2n2pN1/2Q5/NR1br2q b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 fxe5 Ba6 cxd5 Bc8 g4 Ke7 d4 h5 Kd2 f5 Kc3 c5 e4 a5 b4 c4 g5 f4 g6 h3 b6 h4 g7 h2 b7 h3 b5 Bg4 b6 Nc6 b8N Nh6 g8B Nf7 Qc2 Bd1 b7 f3 Bf4 a4 d6+ Ke6 Nd2 Qh4 Ne2 Na5 Nd7 Rd8 Kb4 c3 b8R Nc4 Ra8 Bg7 Bh7 Rhe8 Nf6 Bh6 Bg3 Bf4 d7 Ke7 e6 Bb8 d5 Qh5 Qd3 c2 Rb1 c1N Bf5 Qh8 Nb3 Na2+ Kc5 Qh4 Ra5 Nc3 Qc2 Qh6 Bg4 Qh8 Rg1 h1N Na1 h2 Be5 Ng3 Nh5 h1R Kb4 Nf5 Neg3 Qh6 Rg2 Qh7 Be2 Re1 Rh2 Qh6 Ng7 Qc1 Rh7 Qh6 Bd3 Qh1 Bf1 Nb2 Bb5 Nc4 Bc7 Kf6 N7h5+ Kg6 Be5 Kg5 Rg7+
3R1bk1/3p1P2/4P2r/QNq1BBPR/P3b2N/RK1nn1p1/1n1N3b/b3r1B1 b - - 0 1 illegal: No possible last move, all moves rejected
bk5b/2PnN2B/1r3R2/qP4r1/NPR2rpP/2K1nnrp/2QN1B2/R4B2 b - - 0 1 illegal: No possible last move, all moves rejected
2bn4/Rnp1np2/PPBk4/B1NP1b2/3N4/3nrr1R/3PQNKR/b2Bq3 b - - 0 1 illegal: No proof kernel
1bb1q2R/2pR4/1n2brbr/1P2N1Pn/1PpR3N/1PB3Q1/K2NB3/2B1k1q1 b - - 0 1 illegal: No proof kernel
3q4/2nB1bPQ/1qRqbNPb/4B1p1/1R4P1/1Pq1pN1K/1k1N2R1/B2r1r2 b - - 0 1 illegal: No possible last move
qnB1B3/2pN3k/1R3N2/P4n1b/1n1Ppqb1/nr2PQ2/N1P4B/2qRR1K1 b - - 0 2 illegal: No proof kernel
N3N2b/PkR1RrPB/2bb2pB/1nPN1b2/1p5r/nP2Q1b1/3K1Br1/R7 b - - 0 1 illegal: No possible last move, all moves rejected
Q4R2/5n2/P4P2/NB1qr1BN/P2bprBp/r1kn1R1R/P2p2bN/K2b4 b - - 0 1 illegal: No proof kernel
1NR1b1K1/B3pN2/2q1Bp1p/R1b3Br/1PPP4/5rR1/k1N1PnQ1/4b1nr b - - 0 1 illegal: No proof kernel
2n5/p5Nr/3p3n/1P1rPPBk/K1BNBb2/N1p4b/n1Q2PbR/q5RR b - - 0 1 illegal: No proof kernel
B5rN/3RrN1b/1nN1P1pq/7b/pq2Pr2/P3PpBK/Q1Rn1B2/2R4k b - - 0 1 legal: proof: d4 h5 b4 c5 bxc5 e5 dxe5 Na6 g4 Be7 e3 Bg5 e4 Be3 fxe3 hxg4 Bb5 Nb8 Be2 Rh3 Bf1 Rh8 Kf2 Ke7 Kg3 a5 h4 f5 c4 d5 c6 b5 c7 a4 h5 f4+ Kh4 g3 a3 d4 h6 b4 c5 b3 h7 d3 c6 d2 Rh3 b2 Qe2 d1B Qc2 g2 Ne2 g1R Bd2 Nh6 Be1 Ra7 Nbc3 b1Q Nd4 Qb4 Bb5 Rg8 h8B Bh5 Qa2 f3 Rc1 Nd7 Bf2 Qf8 Nce2 Nf7 Nf4 Nb6 Bc4 Rg3 Bd5 Bf5 c8R Nd6 c7 Bh7 e6 Kf6 Ba8 Ndc4 Nc6 Nd2 Ng6 Rb7 Rhh1 Rg4+ Kh3 Kg5 Rhd1 Rf4 Rc2 Ra7 Rdc1 Qf6 Rd8 Qff8 c8N Re7 Rd7 Qf6 Nge5 Qh6 Nd6 g6 Bg7 Nb1 Bf8 Nd2 Nef7+ Kf6 Nh8 Kg5 Kh2 Kg4 Ndf7 Re8 Bd6 Re7 Kg1 Kh3 Be1 Qb3 Kf2 Kh2 Bb8 Kh1 Kg3 Nd5 Kh3 Qb4 Bc7 Nb6 Be5 Rf6 B5g3 Rf4 Bef2+
1n1n2KB/1r3BRp/2nRpk2/Pq4rP/1p1B4/P3NnqR/Pb4Q1/N6N b - - 0 1 illegal: No proof kernel
2n5/qPb4K/p2B2NN/1pr1B1P1/1r1R2Bn/1P1Qr1pR/r3R2P/2q1k2N b - - 0 1 illegal: No proof kernel
5k1r/2q2PRb/RBBNPn1p/p4Q2/1R1PNn2/1np1K2P/Nb3p2/3r1B2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 e5 axb5 d5 fxe5 f4 c3 Qd7 c4 Qf5 gxf5 dxc4 Kf2 g5 e4 c5 b4 g4 b6 c3 h3 f3 f6 a6 f7+ Ke7 e6 c2 b5 c4 e5 c3 b7 h6 b6 g3+ Ke3 g2 Ne2 g1N Na3 f2 Nb5 Nf3 Ng3 Bg7 Rg1 Ra7 Ne4 Nd4 Qg4 Kf8 Nbd6 Nb3 Qf5 Nc6 b8R Nb4 b7 Nf6 d4 Nd3 Ba3 Nf4 Bc5 Ra8 Bb6 Ra7 Ra4 a5 Rb4 Ra6 Ra8 c1Q+ Kf3 Ra7 b8N Re7 Nc6 Qa3 Ke3 Re8 Ra4 Qc5 Nb4 Qc7 Na2 Ba6 Rb4 Bd3 Ra6 Bc2 Nc5 Bb1 Qg4 Bh7 Nce4 Ke7 Qf5 Bf8 Rg7 Rb8 Bc5 Rb5 Rc4 Rb4 Bb6 Ra4 Rb4 Ra3 Nc1 Ra1 Na2 Rd1 Qg5 Kd8 e7+ Kd7 e8B+ Ke7 e6 Qb7 Ra4 Qc7 Nb5 Kd8 Qg6 Ba3 Qf5 Ke7 Nbd6 Bb2 Bc6 Kf8 Rb4
R1BB2k1/1n1P4/1r2b2K/1PP2BR1/2pppb2/3prn2/1NNq1nNP/5RQ1 b - - 0 1 illegal: Other
4b1n1/p4QK1/7p/1N1qkB1P/4PnbN/1PP1B1R1/NBp1r1p1/1q2RrR1 b - - 0 1 illegal: No proof kernel
2qR3B/1Pp1p2B/5bpr/1rpK2N1/1R1Pn2R/NP2Q3/b1P5/rk1Nb1B1 b - - 0 1 illegal: No proof kernel
q2qqb1N/R5pb/1nRBNpP1/3rP1P1/5B2/p4B2/pkNr1P1R/4Q1K1 b - - 0 2 legal: proof: c4 e5 d4 b5 dxe5 d5 cxd5 Bg4 h4 Bf3 a4 bxa4 g4 Nc6 g5 Nce7 h5 Ng6 hxg6 Bg4 Ra2 Bh3 Ra1 Bc8 e4 Kd7 b4 c5 d6 Ke6 d7 a5 b5 h5 b6 f6 b7 a3 b8B a2 Na3 a4 Ne2 h4 Be3 h3 Ng3 h2 Bd3 c4 Kf1 c3 Ne2 c2 Bd6 c1Q Qe1 Ra5 Bf4 Ne7 Nc2 Qe3 Rc1 a3 Bb5 Nd5 Bc6 Nb6 Kg2 Qe7 d8R Bd7 Ra8 Rd5 Ra7 Qd8 Ba8 Bb5 Bb7 Bc4 Ned4+ Kd7 Ne6 Rg8 Bc8+ Kc6 Ba6 Bb3 Be2 Rd2 Bf3 Kb5 Nc5 Kc4 e6 Kc3 e7 Be6 e8N Kb2 Kf1 Bf7 Ne6 Rh8 Kg2 Bg8 Kf1 Bh7 e5 Qb3 Nb4 Rg8 Rc6 Qa4 Nc2 Rd5 Bb4 Rd2 Nd6 Rd5 Nf7 Qb5+ Rc4 Qbe8 Bd6 Rh8 Rc6 Rg8 Rg1 h1Q Nh8 Rd2 Be2 Qe4 Rh1 Qd5 Rh2 Qf3 Rc8 Qa8 Kg1 Qde7 Rh1 Qa4 Kh2 Qed7 Bd1 Be7 Bc7 Rd8 Kg1 Bf8 Rh2 Qdd4 Bf3 Qe8 Bb8 Qdd7 Rc6 Qc8 Ra5 R8d5 Bd6 Qcd8 Ra7
k2R2N1/q3b1r1/P1bpp3/3P1BQ1/Rr1BP3/6rN/1qbPnR2/nN1q1B1K b - - 0 1 illegal: No proof kernel
2N3n1/4R1q1/B1bP4/N1Rnpr2/PbnpP1rk/2RPr3/2K2B2/B1n1Qq1N b - - 0 1 illegal: No proof kernel
5NN1/B2r1rR1/1rrBp1B1/1r1k2Np/PP1b4/2QbP2P/1q5R/1nR1Kn1r b - - 0 1 illegal: No proof kernel
3qR2K/pb2b3/1N1k2B1/1P1P2BR/Pp1nN3/p2qnQr1/NP4Bn/R5rr b - - 0 1 illegal: Other
N2r3q/3RpkP1/B1R2bb1/1n2N1Br/pq2Qp2/PB2P3/1Pn2RN1/b1K4n b - - 0 1 illegal: No proof kernel
6R1/1NKnp1kB/2pQq2p/2rqb1Bn/rRN1P3/2PP1n1P/3R1B2/n2Nb3 b - - 1 3 illegal: No proof kernel
1NN1n1BB/1R1Br2p/bp2n2P/rp2k3/RP6/Nnq2Rb1/K2p2PP/1r3Q2 b - - 0 1 illegal: No proof kernel
N1B2N2/1pR1n1kq/PP1pPr1B/2bPQ2n/1pNb4/1bB2rR1/2pq1R2/K7 b - - 0 1 illegal: No proof kernel
K2bBn2/P2P2rq/p1QB4/p2pr3/P1R1rNqR/N5B1/pNRPb3/4n1k1 b - - 0 1 illegal: Other
RQ3r2/1p3BRK/bB3kpp/pP2N3/b1q1q1PN/PrnP4/2RN3n/1B2q3 b - - 1 3 legal: proof: f4 e5 c4 exf4 h4 d5 cxd5 g6 h5 Bg7 h6 Kd7 hxg7 Ke8 Kf2 Ke7 Kf3 c5 e4 f5 g4 a6 b4 c4 e5 c3 e6 c2 d6+ Kf6 e7 Nc6 e8B Bd7 Bf7 Qe7 Rh2 Rf8 Bd3 Qe8 Qe1 Nge7 g8R Nd5 Qg3 Nc3 Rg7 Qe6 Bb2 c1Q Rf2 Be8 d7 Qce1 d8N Bd7 a3 a5 Ra2 Q6e5 Bc1 Qe7 Rc2 Q7e6 Re2 Qc4 Re8 Nd4+ Kg2 f3+ Kh3 f2 Kh4 f1B Nc6 f4 Nf3 Qee6 Ra8 Qe4 Nce5 Ba4 Qh2 Rd8 Qg3 Rhf8 Qh2 Rd6 Qg3 Rb6 Qh2 Ke7 Kg5 Be2 Kh6 Kf6 Nh4 f3 Bb2 f2 Ba1 Nf3 Bb2 Nb5 Bd4 f1Q Qg3 Qe1 Be3 Re6 Bb6 Nc3 Qh2 Qed5 Qg3 Nh2 Bf5 Qce4 Qf4 Ba6 b5 Ree8 Ra2 Rc8 Nef3 Rc4 Qb8 Qed3 Ne5 Rb4 Be4 Q3c4 Bc2 Qcd4 d3 Q5e4 Nd2 Rb3 Bb1 Qb4 Rc2 Qbc4 Rg8 Ke7 Kg7 h6 Kh7 Kf6 Rg7
2b2bQ1/3nN1bP/1p1p1q2/2r4k/1Bpq1PpN/2P2BK1/1Pr1R3/NR2nBR1 b - - 0 1 illegal: No proof kernel
B4nB1/1Rq1p2p/1QN5/PN1P1nK1/1k2p1b1/bN1rBp1P/r3P2r/R2q3R b - - 0 1 illegal: No proof kernel
1K2B1Bn/1p1pn2B/3pR3/bq6/N1qPrp1N/1P1PrP2/RQ3k2/N1nb2R1 b - - 2 3 illegal: No proof kernel forced: wxLB
1N6/4b2n/ppQ2k2/bN1RBB1p/KbrB2R1/P4NpP/PRr2pP1/q1n5 b - - 2 3 illegal: No possible last move, all moves rejected
1nbk1q2/P7/b1PbBp1P/5B2/1n2RP1N/4R1Kn/1r2Q1N1/1NQ2r1B b - - 0 1 legal: proof: d4 c5 dxc5 a5 e4 d5 exd5 g5 g4 h5 gxh5 e6 dxe6 a4 Ke2 a3 Bf4 Qf6 bxa3 Qd4 a4 Qd8 a5 g4 f3 g3 Be3 Qd6 Bd4 Qd8 Bf2 gxf2 c4 b5 a4 f6 h4 b4 a6 b3 a5 b2 c6 Ne7 f4 Ng8 Kf3 Bd7 c5 Qe7 a7 Qh7 h6 Kd8 c7+ Ke8 c8B Nc6 e7 Ne5+ Kg3 Rb8 a8B Nf7 a6 Bh3 a7 Rb7 h5 Qc2 h7 Ng5 Bc4 f1B B4e6 Ba6 Nf3 Qc4 Qg1 Qb4 Qc1 Bf5 Ra3 Nh3 Re3 Rb6 Nbd2 b1N Ne1 Nc3 Nb1 Nd5 Ng2 Qa3 Bab7 Rb2 Re1 Nb4 h6 Rf2 Be4 Rf1 B6d5 Bd7 Bf5 Be6 Bcb7 Kd7 e8Q+ Kc7 Ba8 Bd6 Bc4 Bec8 Bce6 Ne7 Bae4 Rf8 h8N Nec6 Ng6 Nb8 N6h4 Rh8 Qb5 Kd8 c6 Rh7 Qd3 Rb7 Qdc4 Nd3 Bf3 Rb2 Re4 Nb4 R1e3 Qa4 Qe2 Qa2 Bd7 Qf7 Bde6 Qe7 Ne1 Qe8 Bh1 Qf8 Neg2
5Q2/b1B1R2b/P3R3/1Nqb2r1/1R2Pp1K/PnQ2PBp/1N4q1/1B3b1k b - - 0 1 legal: proof: b4 b5 d4 e5 dxe5 g5 h4 a5 bxa5 gxh4 c4 Bc5 cxb5 Nc6 a3 Nd4 Qxd4 Ra6 Qd1 Rh6 Bxh6 Be7 Bc1 Bf8 g4 Ke7 g5 Ke6 g6 Kf5 b6 Ke4 g7 h5 b7 f5 b8B d5 e6 c5 e3 d4 a6 f4 e7 d3 e8R+ Ne7 g8Q h3 Bd6 h2 Nh3 h4 Qg7 c4 Bb8 d2+ Ke2 c3 Qb3 c2 Bc7 Bf5 Qbc3 Bh7 Qg8 Bg7 Qf8 Qd5 Rg1 h1B Rg6 Be5 Re6 Nf5 R8e7 Rg8 Ra2 Qb7 Rb2 Rg5 Rbb6 Qa8 Bb2 c1Q Rb4+ Kd5 Ba1 Bd4 Bb2 Ba7 Ba1 Rg2 Kf3 d1B+ Be2 Ba4 Bd3 Bb5 Bc2 Bf1 Bd3 Rh2+ Kg4 Nd4 Bb2 Qc2 Bc1 B1e4 Bd2 Nb3 Be1 Rg2+ Kh5 Qc6 f3 Qc5 Nf2 h3 Kh4 Rg5 Nd1 Qg2 Bb5 Bg8 Nb2 Beh7 Bd3 Bf7 Rb7 Bfg8 Bg3 Bf7 Qe1 Bfg8 e4+ Kd4 Qc3+ Ke3 Rb4 Bf7 Bh2 Kf2 Bg3+ Kg1 Qe5 Qb6 Nc3 Qc5 Bb1 Kh1 Nb5 Bfg8 Qc3 Bf7 Rg6 Bd5 Rge6
q1bK1NQ1/1p1P1B2/5Q2/N1n1rn1q/1p2qBpP/1RQ1R1P1/2Pk1B2/8 b - - 0 1 legal: proof: d4 c5 dxc5 f5 e4 h5 exf5 a5 a4 d5 Qxh5+ Kd7 b4 axb4 a5 e6 a6 Qe7 a7 Qd8 Qh7 Bd6 cxd6 Ke8 Bb5+ Nd7 Bf1 Rb8 a8Q Nc5 Qxb8 Na6 Kd2 Kd7 Kd3 Kc6 Kd4 g5 Ke5 Kc5 f4 g4 h4 d4 f6 d3 g3 Kc4 d7 Qa5+ Kd6 e5 f5 e4 f7 e3 f8B e2 f6 e1Q f7 Qb5 Nh3 Qg5 Nd2+ Kc3 Nf4 Qf2 Rb1 Qg2 Rb3+ Kd4 Ng6 Ke3 Nc4+ Kf3 Na5 Kf2 Bf4 Ke1 Qc7 d2 Qc3 Nc5 Kc7 Qe5+ Kd8 Nh6 Qg8 Qge4 Rh2 Rh7 Bc4 Qh5 Re2+ Kd1 B8d6 Nf5 f8Q Re7 Bf7 Re5 Re3 Kc1 Bc7 d1Q Bb6 Qd6 Qfg7 Qb8 Nf8 Qa8 Qg6 Na6 Bd4 Nc5 Qf6 Kd1 Rf3 Ke2 Bf2 Kd1 Re3 Kc1 Qa1+ Kd2 Qc3+
4k3/1Nnb1Nb1/5n1N/1P1Q1R1Q/rBP5/1bqP1PRK/1rnq3R/2q3B1 b - - 0 1 legal: proof: b4 c5 g4 b5 e4 d5 c3 f5 exf5 h5 gxh5 c4 a4 d4 axb5 d3 Ra6 Kd7 Rd6+ Ke8 Rd7 Bb7 Bxd3 Ba6 Bc2 Bc8 Bb3 cxb3 Kf1 a5 Kg2 g5 h4 e5 f3 b2 f6 g4 b6 a4 b5 g3 c4 e4 h6 a3 b7 e3 h7 e2 h5 e1Q h6 a2 Nc3 b1B Ne4 a1N Rf7 Nc6 b8R Qd4 Nc5 Be4 Rh2 Bd6 Ne2 Nge7 Nb7 Qc3 Nd4 Nd5 Nf5 Ra4 Kh3 g2 Bb2 Rg8 h8Q g1Q h7 Nc2 Ba3 Bf4 Bc5 Nd8 Bd4 Ne6 Nh6 Qh1 Bg1 Be5 Rg7 Qe2 Rg3 Qee3 Ra8 Qf2 Ra6 Bd7 Rd6 Nec7+ Re6+ Kf8 f7 Bd4 Qe5 Nf6 h8N Bd3 Qh5 Be2 Qc1 Bd1 d3 Qfd2 Qb2 Rg4 Re5 Re4+ Rf5 Re2 Qg4 Ke7 f8B+ Ke8 Bb4 Rf2 N8f7 Rg2 Bf2 Qhe1 Qa1 Qc1 Be3 Qed2 Bg1 Ne1 Qa3 Qe2 Be7 Nh7 Qe4 Bb3 Qg4 Bg7 Qd6 Nf6 Qc6 Qed1 Qd6 Rb2 Qd5 Qdd2 Qh5 Nc2 Bb4
2b5/P2q3r/1NQrb1R1/B2b1q1n/P1QQ1P2/qB1N2B1/3Pn1R1/3Kn2k b - - 0 1 legal: proof: c4 f5 b4 a5 bxa5 d5 cxd5 f4 e3 Na6 exf4 Nb8 h4 g5 f3 g4 Bb2 gxf3 Ba3 Nf6 Bc1 Ng8 g4 Na6 g5 Bh6 g6 Bg5 hxg5 Nb8 a4 Kd7 d6 Kc6 a6 Kd5 a7 Ke4 d7 e5 g7 c5 g6 b5 Ba3 h5 Bc4 h4 Ra2 h3 Qc1 h2 Qc3 f2+ Ke2 f1B+ Ke1 b4 Rb2 b3 Qg3 Bh3 Bb4 Nf6 g8Q Rh7 g7 Nc6 Ba6 c4 Ne2 c3 Qg5 Kf3 Qe6 e4 g8Q c2 Qge5 e3 Nc1 e2 Qd4 Nh5 Rg1 h1B Bc4 Qc7 d8B Qd7 Qee8 Be6 Nc3 Bg2 Rb1 b2 Nd5 Bh1 Ra1 b1Q Rg2 Rb8 Bg5 Rb6 Ba5 Ra6 Bh4 Rb6 Qc5 Nd4 Bg3 Rd6 Nb6 Qbb5 Ba2 Qd3 Bb3 Qf5 Nd3 c1Q+ Bd1 Qb2 Bb3 Qa3 Qh8 Kg4 Qc4 Kh3 Rf2 Bhd5 Rg2 Qdf7 Qec6 Qd7 Kf2 e1N Kf1 Nb5 Ke2 Nd4+ Kd1 Ne2 Qhd4 Qe8 Bh4 Qd7 Rg6 Kh2 Bg3+ Kh1 Rb1 Nf3 Kc2+ Kg2 Rh1 Ne1+ Kd1 Qe4 Rf1 Qf5 Rf2+ Kh1 Rg2
n1k1B1RR/4n3/b1B1P3/3rP1n1/N1b1r3/PQq1Qn2/N1N1P1KB/3q3n b - - 0 1 legal: proof: c4 d5 cxd5 a5 d4 g5 b4 axb4 f4 e5 dxe6 g4 d5 g3 hxg3 Ne7 g4 Bg7 g5 Be5 fxe5 Ng8 Kf2 h5 g4 f5 d6 b5 g6 c5 g5 b3 a3 c4 g7 c3 g6 b2 Be3 h4 Qd3 h3 Nf3 b4 Nd4 f4 Bc1 h2 Nb5 b3 Bg2 c2 Re1 h1N+ Kf3 Na6 Bf1 Rh4 N1c3 b1B Nd4 b2 Qe3 Nc7 Bg2 Ne7 g8B Ba2 g7 b1N Rg1 Ba6 Na4 B2c4 Bd2 c1Q Nc2 Qc8 d7+ Kd8 Bf7 Qd1 Be8 Nc3 g8Q Ne4 Qg3 Ra7 Rb1 Na8 Rb8 Rb7 Be1 Rb5 Qb3 Kc7 d8N Rd5 Nc6 Rg4 N6b4 Kd8 Bf1 Ng5+ Kg2 Kc7 Na2 f3+ Kh2 f2 Kg2 Re4 Qge3 Ng3 Rh1 Kd8 Rh8 Nh1 Kh2 Kc7 Bg2 f1N+ Kg1 Kd8 Bg3 Nd2+ Kh2 Kc7 Bf3 Kd8 Kg2 Kc7 Bh2 Kd8 Bfh5 Ndf3 Bc6+ Kc7 Bhe8 Kd8 Rb5 Qc7 Ra5 Kc8 Rc5 Qa5 Rb5 Qc3 Rb7 Nf5 Rg7 Ne7 Rgg8
K1R2r2/n7/1NPn1q1n/1Qnn1Q1b/1P1B1N1P/2N3P1/4Q3/1rkqBR1b b - - 0 1 legal: proof: d4 c5 a4 g5 g3 b5 axb5 d5 e3 g4 Bh3 Bg7 dxc5 d4 Bf1 d3 Bh3 Bd4 exd4 h5 Bg2 h4 f3 h3 fxg4 hxg2 g5 Bh3 Qh5 Be6 Qd1 Bc8 Kd2 Kd7 Kc3 Ke6 Kc4 Kf5 h4 Ke4 b4 a5 c3 f5 c6 e5 Kc5 f4 c7 a4 Kb6 d2 d5 Ke3 d6 a3 c4 e4 c5 f3 g6 f2 g7 f1N d7 a2 Bb2 Bb7 Ba3 Nh6 g8N Nc6 Bc1 Qf6 Ne2 g1Q Ne7 Rhf8 c8Q Na7+ Kc7 Kd3 d8B Ne3 b6 Nef5 Nd5 e3 Nbc3 Nd6 Qe6 Bc6 b7 Qgf1 Rb1 a1N b8Q Nc2 Nb6 Q1f3 Qf1 d1B Bd2 Qh5 Rg1 Bh1 Rc1 Qhf3 Be1 Qd5 Bf2 Kd2 Nf4 e2 Qf5 e1N Qb5 Bh5 Rf1 Nd3 Be1+ Ke3 Qc4 Qf3 Be7 Qd1 Qe8 Rd8 Qcb5 Rd7+ Kb8 Rc7 Bf2+ Kd2 Bd8 Rc6 Ka8 Ne3 Qee5 Nd5 Qe8 Qg7 Bf6 Qg5 B6d4 Qf6 Rb1 Kc2 Be1 Rc7 Rb3 Kc1 c6 Nc5 Ra3 Re7 Ra6 Re2 Ra2 Rb2 Ra5 Nac8 Qee2 Rb3 Ra7 Rb1 Rc7 Na7+ Rc8
1RBk3Q/B1Nq2P1/4bB2/r1q2P2/br2n1N1/2Q2P1K/N1r2RPn/1rb5 b - - 0 1 illegal: No possible last move
1R1rQNb1/2bB3q/K2B1b1P/bR1rb3/1b4P1/nPk5/1N1nPR2/Q2B4 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 e5 cxd5 h5 d4 Ke7 dxe5 Ke8 g4 hxg4 f3 g3 Be3 g2 Bf4 Qe7 Bc1 Qd8 Bg5 Qd7 Qd4 Qg4 Bc1 g5 Qd2 Qd7 Qd1 g4 Ra2 g3 Ra1 Qg4 fxg4 Rh4 Ra6 Rh7 Ra1 Rh8 Kd2 Kd7 Kc3 f5 Kc4 a5 h4 c5 e6+ Kd6 b6 Ke5 Kb5 f4 e7 a4 e8B f3 b7 f2 d6 c4 h5 a3 b3 a2 h6 c3 d7 c2 d8Q Be6 Q8d7 Na6 b8R Nf6 Q1d3 Ne4 Qd2 Nb4 Q7d3 Bg8 Q2e3 Ra5+ Kb6 Rd5 Nh3 g1B Kb7 g2 Na3 Bh2 Ng5 g1B Bg2 f1Q Nh7 Qf7+ Bd7 Qe7 Rb1 a1B Qa6 Bf4 Rh4 Bgh2 Rh5+ Bg5 Bd2 c1B Ka7 Bcb2 Rf1 Bc3 Rf2 Nc2 Bh1 Ba5 Bb4 Bc3 Kb7 Bg7 Nf8 Bf4 Bc5 Bcb4 Qa7 Bf6 Ka6 Qh7 Qa8 Bg3 Qc1 Bfd8 Bd6+ Kd4 Nc4 Kc3 Nb2 Bgf6 Qa1 Nd2 Be4 Na3 Bc2 Bdc7 Bd1 Bh2 Re5 Bf4 Ree8 Bh2 Rb5 Bhe5 Reb8 Bf7 Ng6 Rd8 Nf8 Bg8 Qc6+ Rc5 Qe4 Rd5 Qg6 Qf7 Qh5 Qh7 Qe8
2q1n2N/6RP/R1n2P1B/2Qr1Rrq/K5n1/P2B3n/P1Q4n/q1kbB2N b - - 0 1 illegal: No possible last move, all moves rejected
3q2r1/2PQ1Qq1/1PKB1r2/1n2P1B1/1rNN2n1/2R1nR2/Rb1nP3/2N1k2q b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 d4 c5 dxc5 f5 a4 f4 axb5 Bb7 Bg2 Be4 Bh3 Bf5 gxf5 Na6 Bg4 hxg4 Qd3 Nb8 Qd6 Qb6 Qd1 Qd8 Kf2 Ke7 h4 a5 c4 g5 b4 d5 c6 f3 Ke3 a4 Kd4 g3 Kc5 g2 c7 a3 c8Q a2 h5 d4 b6 d3 b7 d2 b5 f2 h6 f1R b6 g4 h7 g3 Qe1 d1N Qa5 Nh6 Rh3 Ne3 Qa7 Nhg4 Nc3 Rg8 h8N Nc6 Nf7 Nd4 Nf3 g1Q Nd6 Nb5 Kc6 g2 c5 Qh1 Nc4 g1Q f6+ Kf7 b8B+ Kg6 Qe7 Ra4 f7 Rb4 Bd6 Bh6 Rg3 Kh5 f8R Qgg2 Qcd7 Rf2 Rb1 a1N Na2 Nb3 Ra1 Nd2 Qee6 Rf1 Qd5 Bf4 Nd4 Kh4 Rf3 Qg3 Q5f7 Kh3 Re8 Kg2 Re6 Rf2 Rh6 Kf1 Rh3 Qgh2 Rg3 Qh7 Rh3 Ke1 Rg3 Nd5 Rc3 Qg7 Rgf3 Nb1 Be3 Bh6 Bf4 Nde3 Nc1 Nd2 Ra2 Rf1 Kb7 Rf2 c6 Rf1 c7 Bg5 Bf8 Be7 Bg5 Bc5 Ne6 Bd4 Kc6 Rf2 Bd6 Rf1 Rd3 Bc3 Nd4 Bb2 Rc3 Rf2 Qd5 Rf1 Rh3 Rff8 Rf3 Rf6 Q5f7
4k1B1/1Qr1b3/4P3/1Pr2P1N/2R2Br1/4bPQN/Nnb1n1RK/nB2r1r1 b - - 0 1 legal: proof: c4 b5 e4 e5 d4 g5 h4 gxh4 a4 d5 axb5 f5 exf5 e4 cxd5 Qd6 Bf4 Nf6 Bc1 Qe5 dxe5 Ng8 g4 h5 b4 a5 d6 c5 b6 e3 b5 c4 b7 h3 Qf3 a4 Qd5 h2 Nf3 c3 Qd4 h4 Qf4 c2 Qg5 e2 Nc3 h3 Ra2 a3 Bd2 c1B Ng1 Ra7 Bf4 Na6 b8Q Nc5 Qb7 Na4 f3 Nf6 Kf2 e1R Kg3 Nd5 Rg2 a2 Be2 a1N Na2 Be7 Bd3 Ndc3 Bb1 Be6 Qh4 Bc4 g5 Be3 g6 Nb2 g7 Bb3 g8B Bc2 Qg5 Rh4 d7+ Kf8 d8N Ke8 Ne6 Rc1 Qb6 Rc7 Qb7 Re1 Nf8 Rc5 e6 Rh7 Ng6 Rh4 Ne2 Rc1 Rf1 h1R Ng1 h2 Nh3 Rg1 Rd1 h1R Rd4 Rge1 Rc4 Rhg1 Kh2 Ne2 Qg3 Rg4 Be5 Rcd1 Ngf4 Rd7 Nh5 Rdc7 Bf4
2r1Br2/1Rn2nP1/2K1BR2/1n1N4/2kNQP2/nbnP2Q1/B1Pq2N1/3q2n1 b - - 0 1 illegal: No possible last move, all moves rejected
1Q1N4/NbBR3r/1Q2P2P/2PB4/nP2n1r1/rB1NK1b1/1b4bR/n1k1n3 b - - 0 1 legal: proof: f4 e5 fxe5 c5 d4 b5 a3 b4 axb4 cxd4 g4 a5 b3 h5 gxh5 a4 Bg2 a3 Bh3 Qa5 Bf1 Qa4 bxa4 Ke7 Nd2 Kd8 Nb1 Ke8 Kd2 Ke7 e4 Ke6 c4 f5 h4 g5 a5 d5 a6 d3 c5 g4 h6 f4 a7 f3 h5 g3 h7 f2 h6 d4 Be2 f1B Rh5 g2 Rh4 a2 Rf4 Nd7 Nh3 g1B Rf5 Bh2 Rh5 Bg3 Bb2 Bb7 Nf2 Bg2 Nc3 Nb6 Rh2 Bg7 Nb5 Na4 Qe1 Bf6 Rd1 a1N Bc3 Bg7 Bh5 Nf6 Bf7+ Kd7 e6+ Kc6 e5 Kd5 Qe4+ Kc4 Qc6 Kb3 Qb6 Rhg8 h8N Ne4+ Ke1 Kc2 e7 d2+ Ke2 d3+ Ke3 Bf6 e8Q Rg4 Qb8 Bg7 Bc4 Bf6 e6 Bfe5 Rf1 d1R Nf7 d2 Nd8 Kc1 Bb3 Bg7 Rfh1 Rg1 Be5 d1N+ Ke2 Rf1 Bc7 Ndb2 Ke3 Nd3 Rg1 Ne1 Nd3+ Kb1 Rgh1 Rf7 Rf1 Bb2 Rf2 Rf8 Rf7 Rh8 Rd7 Rh7 Qd6 Bc6 Qb6 Bb7 Qf4 Rb8 a8B Rc8 Na7 Rb8 Nf2 Kc1 Qf8 Rc8 Qfd6 Rb8 Nd3+ Kb1 Qbc6 Ba6 Qb7 Nb6 Nb5 Rc8 Nf4 Kc1 Qdc6 Rb8 Qc8 Rb7 Qb8 Ra7 Qd6 Bc8 Bad5 Ra3 Na7 Na4 Qdb6 Bb7 Nd3+
b2qR1r1/2NbR3/2NP1P1r/3q2k1/2N1q3/3qqQ1B/1rP1P2Q/K1b1B2R b - - 0 1 illegal: No proof kernel
Q1Qb2n1/2q1b2K/B1P1R3/1PP5/2Rr4/2r2Qn1/npn1R1NP/k3n1BN b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 c5 d4 b5 dxc5 f5 e4 Ba6 exf5 axb4 a4 b3 Nf3 b4 Ng1 Bb5 axb5 Qa5 Qf3 Qb6 Qd1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 f4 d5+ Ke3 g5 c4 b2 h6 b3 h7 g4 c6 d4+ Ke4 d3 Nc3 b1N Be3 d2 Nh3 g3 Qf3 d1N Bg1 g2 Ne2 Ne3 Nf2 Ra4 Ra2 Na6 Rb2 Nb4 c5 Be7 Rc2 b2 Rc4 Kf7 f6 Ke6 f7 Na2 f8R Qc7 Rc8 Na3 Re8 Nac2 f5+ Kf7 f6 Ke6 f7 Nf5 Kd3 Ng3 Nf4+ Kf5 Be2 Bd8 Re6 e4+ Kd2 e3+ Kd3 Rb4 Bd1 e2 f8Q+ Nf6 Qe8 Ng8 Qd7 e1B Qc8 Bc3 Be2 Bcf6 Bd1 Bfe7 Qa8 Nf6 Re2 Rg8 h8Q Rg5 Qe8 Ng8 Re6 Rh5 Qd7 Rh3 Qdc8 Na1 Kd4 Nc2+ Kd5 Rb3 Be2 Rc3 Bd1 Rh4 Re2+ Kg5 Ke6 Rg4 Kf7 Rh4 Re6 Kf5 Kg7 Rg4+ Kh7 Rh4+ Rh6+ Ke5 Nd5 Rf4 Ne3 Rd4 Qh5+ Kf4 Qhh3 Ke5 Bg4 Kf4 Bf5 Kf3 Rg6 Ke2 Re6 Kd2 Qg4 Kc1 Qf3 Kb1 Re4 Ne1 Qcb8 Ne2 Bc8 Ka1 Ba6 Nd3 Re6 Nac1 Qc8 Qa5 Nh3 Nb4 Bf2 Ng3 Rg1 Qc7 Re1 Nc2 Re2 Na2 Qf8 g1N Ng2 Nf3 Bg1 Qf4 Nf2 Qc7 Nh1 Nfe1 Qf3
b4nn1/1R1rn1K1/1q1Rb3/1PB1QP1p/2NP2n1/k4rQQ/4BNP1/4R2b b - - 0 1 illegal: No possible last move
2b2QKn/P1PPB1B1/1r2B1k1/1b2nn2/nqN3Q1/3PN1p1/2q2RR1/Q4r2 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 e4 a5 exd5 c5 b4 axb4 Na3 e4 Nb5 Kd7 Nc7 c4 Bxc4 Bd6 Bf1 Be5 fxe5 Rh7 Qe2 Rh6 Qd1 Rh8 Kf2 Ke7 Kg3 g5 c4 b5 a4 f5 h4 Kf7 h6 e3 c5 g4 Kf4 b3 e6+ Kf6 e7 b2 e8Q b1B h5 e2 c6 e1N d6 g3 h7 b4 h6 b3 a5 b2 d3 Nc2 a6 Ra7 d7 Rb7 a7 Ne7 Ra2 Rf8 Bh3 Rb6 Rh2 Ne3 Rg2 Bc2 Nf3 b1N Ne5 Nc3 Ba3 Ba4 Qe2 Rf7 Qf8 Bb5 Bg4 Na4 Nd5+ Ke6 Kg5 Qc7 h8Q Ng6 h7 Rf6 Bh5 f4 Kh6 Kf5 Kg7 f3 Kg8 f2 Be7 f1Q Bg4+ Kg5 Qd1 Qe1 Be6 Qb4 Qa1 Kh5 Qhg7 Rf1 Raf2 Nf5 Ne3 Nh8 Qa2 Qcd6 c7 Qdc5 Qa1 Qc2 N5c4 Nc6 Qgd4 Kg6 Qf4 Nf7 h8B Nce5 Bg7 Nh8 Qg4+
3Bq3/8/2rn2Q1/BRq5/nQB1p1Pb/qr2P1P1/1QN1NrP1/nK1kR3 b - - 0 1 legal: proof: a4 c5 d4 cxd4 f3 b5 axb5 g5 Bf4 g4 Bd2 g3 hxg3 Bb7 Bc1 Bd5 Ra4 Be6 Ra1 Bg4 fxg4 Qc8 Bf4 Qc7 Bc1 Qd8 Kd2 f5 b4 Kf7 c4 Kf6 Kc2 Ke5 b6 Ke4 b5 d5 c5 h5 c6 e5 b7 a5 e3 h4 b6 d3+ Kb2 a4 c7 f4 c8Q h3 Nf3 a3+ Ka2 h2 Qb3 d2 Bb5 d1Q Qd7 d4 Qbf7 d3 Nh4 f3 Qb3 f2 Re1 f1R Bc4 h1Q Qdb5 d2 Bf7 Ne7 Be8 Nf5 Qe6 Be7 Qeb3 Rf2 Nf3 Nd6 Qb2 Qh5 Rf1 Na6 b8Q Bh4 b7 Rh6 Ng1 Nc5 Qa6 Qa4 Bb5 d1Q Bd2 Qde8 Ba5 Qe1 Bc4 Qab4 Ne2 Na4 Bd8 Qc5 Qab6 Qe7 Q6b4 Qhe8 Qc7 Ra7 b8B Rb7 Qcb6 Re6 Bbc7 Q7f8 Kb3 a2 Na3 Rg6 Rb1 a1N+ Ka2 Rgf6 Bg8+ Kd3 Nc2 e4 Qc6 Re6 Ba5 Rh6 Qd7 Rb6 Qe6 Rc6 Bf7 Rh7 Bg8 Rb7 Qg6 Rb8 Q4a3+ Rb3 Qb4 Rc3 Bc4+ Kd2 Q2b3 Qfe7 Rb2 Kd1 Kb1 Qea7 Qa2 Ra3 Rb3 Qa6 Qb2 Qa8 Qb6 Qa7 Rb5 Rb3 Qb8 Qa3 Qb6 Qc7 Qc5 Qa7 Qb4 Qc5 Rxe1#
BQ6/1Q1Rq3/3b1Pkr/1K6/P3p2N/2Nnqbn1/q2bPRNP/b2B2B1 b - - 0 1 legal: proof: d4 b5 g4 d5 b4 f5 gxf5 a5 Qd3 c6 Qh3 Ra7 Qxh7 Rc7 c4 axb4 cxd5 c5 Bg5 c4 Bc1 Rc5 dxc5 Ba6 Nc3 Bb7 Nb1 Bc8 Kd2 Kf7 f4 e5 a4 b3 Kc3 b2 Kb4 c3 f6 c2 f5 Bd7 d6 Bc6 d7 Ne7 Nc3 Bf3 Be3 c1B c6 Bd2 c7 b1Q+ Kc5 b4 c8B b3 Kb5 b2 Nh3 Qc2 Nf4 Na6 Bg2 Qe4 Raf1 Nc5 Rf2 Nd3 Rd1 Qc7 Ba7 Qe3 d8Q Qd6 Bb7 e4 Bh3 Qa3 Ba8 Qa2 Qb8 b1Q+ Ka6 Qb4 Ng2 Qd6+ Kb5 Qd8 Qh4 g5 Qh7+ Bg7 Bc5 g4 Bb6 Kf8 f7 g3 Bg4 Be5 Bh5 Bd6 Bg6 Nc8 Ba7 Ke7 f8N+ Kf6 Qhb7 Ne7 Bf7 Rh6 Bb3 Kg5 f6 Nf5 Bb6 Qe7 Ne6+ Kh5 Nd4 Kg6 Ne1 g2 Bc2 g1B Ng2 Ng3 Nf5 Bc1 Rd2 Bb2 Bd1 Ba1 Bc5 Ne1 Rd5 Nd3 Ba7 Bc5 Rd7 Bd6 Rf1 Bf2 Bb6 Be1 Bd4 Qg5 Bg1 Qe3 Rf2 Bd2 Nfh4+
7Q/2RbNk2/2r1P1N1/1QPPB3/1r1n1NK1/q4R2/1P1rpR1q/1b1qrB2 b - - 0 1 illegal: No possible last move, all moves rejected
3N2K1/2B1rn2/1P2q3/1n1qR1P1/2rp4/RrN1P2Q/1Q1P3q/Qr1bB1Bk b - - 0 1 legal: proof: b4 b5 a4 c5 axb5 f5 bxc5 e6 g4 Bb7 gxf5 Ba6 f6 Bc8 f7+ Ke7 h4 g5 f4 Bh6 f5 Kf6 Bh3 Ke5 f6 g4 Bg2 Be3 Be4 Bg5 Bf5 exf5 hxg5 Ke6 Kf2 Kd5 Kg3 Ke4 Kh4 d5 Kh5 a5 f8B g3 c4 g2 f7 d4 b6 f4 c6 a4 c5 f3 e3 a3 c7 f2 c6 f1R Nh3 g1Q Nf4 a2 Qe1 Kf3 Rh4 Qe7 Ne6 Kg2 Nd8 Ra7 Nc3 Na6 Ba3 Nh6 Bd6 Qe6 Bh2 Kh1 Bfd6 Bb7 f8B Nf7 c8Q Nc7 Qc1 Nb5 Qb2 Rb1 c7 Bf3+ Rg4 h6 Bdg3 Bd1 Bfd6 Qf2 Bg1 Qh2+ Bh4 Ra4 Bg3 Re8 Qa6 Re7 c8Q Ra3 Bc7 Rb3 Ne2 Rc1 Re4 Rc5 Re5 Rc4 Rc1 a1R Rc3 Rb1 Qaa1 Qg4+ Kg6 h5 Kh7 Qe6 Bg3 h4 Kg8 h3 Bh4 Qg2 Qd7 h2 Be1 Qgd5 Qc8 Kg2 Rd3 h1Q Nc3 Qh2 Qd7 Kh1 Qc8 Qed6 Qh3 Q6e6 Ne2 Rbb4 Ra3 Rb3 Nc3
3qrB2/5Nq1/1P6/PNqQ1nbQ/1bP2bR1/N1BKR2P/1Rr4p/3b2k1 b - - 0 1 illegal: No proof kernel
7B/1qn1P1Q1/b2P1NnN/1bkrp3/Rq2Q3/4PQ2/Pn5N/Bb3nRK b - - 0 1 legal: proof: f4 b5 b4 e5 c4 h5 g3 a5 bxa5 d5 cxd5 Ra6 Bh3 Re6 Bg4 hxg4 Nc3 Be7 Nb1 Bg5 f5 Bf4 fxe6 f5 Ba3 Be3 Bc1 f4 Na3 f3 Nb1 Bf4 gxf4 Qe7 Qa4 Qf6 Qd1 Qd8 Kf2 Ke7 h4 Kd6 d4 c5 h5 g5 e3 g3+ Kf1 g2+ Kf2 b4 f5 b3 h6 b2 a6 g4 f6 c4 a7 c3 a8Q c2 h7 Ba6 f7 Qf8 Nc3 b1B Rh4 Ne7 Bb2 c1N Qa4 Qg7 f8Q Nd3+ Kg3 f2 Kh2 f1B Nf3 g1N Kh1 g3 Nh2 Qf7 Qg7 Rd8 h8B Ng6 e7 Ne2 Qd1 Qf4 Qa4 Bb5 Rg4 Na6 Ne4+ Kc7 d6+ Kb6 d5 Nc7 Bc3 Nb2 Nf6 Kc5 Qe4 Rd7 Qf3 Qb4 Qa4 Rd8 d7 Ba6 Qc2 Qb7 Ra4 Qb4 Nhg4 Qb7 Qce4 g2+ Kh2 Ng3 d6 Rc8 d8N Bfb5 Kg1 Nf1 Nf7 Ra8 Nfh6 Rb8 Nh2 Rc8 Kf2 g1Q+ Ke1 Qg4 Kf2 Qf4 Kg2 Qg4+ Kh1 Ra8 Qd3 Qb4 Qde4 Rf8 Nfg4 Rf4 Nf6 Rg4 Qd3 Rd4 Qde4 Bc2 Rd1 Bb1 Rc1 Rd5 Re1 Nd1 Ba1 Nb2 Rd1 Nd2 Rg1 Nf1 Qf7 Bc6 Qf8 Bcb5 Qg7
2B1qb1Q/3PPR1b/1N1PN2Q/br3R1q/1BK2npq/5P1n/5Q2/k2q1R2 b - - 0 1 legal: proof: c4 b5 a4 f5 axb5 d5 cxd5 h5 g4 hxg4 Ra2 f4 Ra1 f3 exf3 e5 Ra4 a6 Ra1 e4 Ke2 e3 Kd3 e2 Kc3 Bd7 Kc2 Bc8 Kd3 a5 Ke3 Nd7 Kf4 Nb8 Kg3 Ra6 Kg2 Re6 Kg3 Re3 fxe3 Rh5 Kf2 Rh8 b4 Kd7 d4 Kd6 h4 e1B+ Ke2 c5 Kd3 g5 h5 g3 h6 a4 b6 a3 e4 g2 h7 a2 e5+ Ke7 b7 g4 b5 Nh6 e6 Kd6 e7 Nc6 b8R Ba5 b6 Bf5+ Kc4 Qe8 b7 Nd8 Qe1 Nhf7 Nd2 Ng5 Ba3 Nh3 Ne2 g1Q Qf2 Ne6 Nf4 Qg3 Bb4 Qh4 Re1 a1Q Re5 Be4 Rf5 Qd1 Bd3 Rg8 h8Q Rg5 Rf1 Qhh5 Rf7 Bh7 Bf5 Qe1 Qf6 Qd1 Qh6 Qe1 Ng6 Nef4 Bc8 Rf5 Qe2 Qeh4 Qf2 Kc7 d6+ Kc6 d7 Rd5 Kb3 Kb5 Nc4 Rg5 Kc3 Ka4 d5 Rf5 d6 Rd5 Nce5 c4 Ra8 Rc5 b8Q Rb5 Kd4 c3 Nc4 Kb3 Nb6 c2 Rf5 Ka2 Kc4 Bg7 Nf8 Kb2 Ne6 Bf8 Rf7 Ka2 Ra7 Kb2 Rc7 Ka2 Rc5 Kb2 Bd2 c1Q+ Bc3+ Kb1 Rcf5 Qd1 Bb4 Ka1 Qc7 Ng2 Qcc5 Ngf4 Qfd4+ Kb1 Qh8 Ka2 Qf2+ Kb1 Rg7 Ka1 Rgf7+
1R4N1/1bP1B2K/3rrr2/2k2Qpb/1q4P1/n3P1qq/PB2B2N/1Q2q1RN b - - 0 1 legal: proof: d4 a5 f4 e5 fxe5 b5 c3 a4 b3 c5 dxc5 axb3 Bh6 b2 Be3 Bd6 Bc1 Bf8 Kf2 b4 Qe1 b3 Qd2 Bd6 Ke1 Bc7 Qd6 Ba5 Qd1 Bb4 cxb4 Qf6 Bf4 Qg5 Bc1 Qd8 h4 g5 h5 Nc6 Qd4 Nce7 Qd1 Ng6 hxg6 Qf6 Rh6 Qb6 Rh1 Qd8 Kf2 Ke7 Kg3 d5 c6 f5 g7 h5 c7 f4+ Kf3 d4 Ke4 d3 g3 h4 b5 d2 e6 Kd6 Kf5 f3 Kg6 f2 e3 h3 b6 h2 b7 Kc5 b8B Ra6 Qe1 d1B Nd2 Qd6 Ngf3 Nh6 g8N Nf7 Rg1 h1Q Rb1 Qh3 Nh2 Bb7 Be2 f1R Ba7+ Rb6 Kg7 Rf6 e7 Rhh6 e8Q Ne5 Ndf1 Nc4 Qe4 Na3 Qf2 Re6 Qh7 Rhf6 Qff5+ Qe5 Qhg6 Kd5 Qh7 Rbd6 Bc5 Kc6 Bd3 Bg4 Be2 Bh5 g4 Qeg3 Bb4 Kb6 Qhg6 Kc6 Kh7 Kb6 Nd2 Kc6 Ne4 Kb6 Nf2 Kc6 Ra1 b1Q Bb2 Qe1 Rb1 Kb6 Nh1 Kc6 Be5 b2 Bc5 Rd4 Be7 Rdd6 Ra1 b1Q Bb2 Qe4 Rd1 Qa4 Rd3 Qc4 Rb3 Qcf4 Qb1 Kc5 Rb6 Qfb4 Qge4 Bd5 Rb8 Bb7 Qf5+
q1nBR3/P2R1b2/B5P1/QP5R/pb5N/1QP1kr1B/2r1b2q/K1N1q1b1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 axb5 f5 e4 a4 exf5 Nc6 d4 Na5 bxa5 cxd4 Kd2 Kf7 g4 e5 f4 d5 f6 Kg6 f7 h5 c3 h4 Kc2 h3 Kb2 h2 a6 e4 a7 e3 Bh3 d3 Nd2 d4 Ne2 Be6 Qb3 Bb4 f8Q Bf7 Nf3 d2 Ka2 Qd5 Qd8 d1B Qa5 d3 Rb1 d2 Ka1 Rf8 f5+ Kg7 g6 Kf6 g7 Qa8 Rb2 Ne7 g8B Nc8 Nh4 Ke5 g5 Ke4 f6 Rh5 g6 Rd5 Rg1 h1Q Rg5 Qh2 Rh5 Rg5 Rc2 Rg2 Ba3 Rf2 Nc1 Be2 Rb2 d1Q Rd2 Qe1 Rd7 Be8 Bge6 Bf7 Bd5+ Kf4 Bb7 Rf3 Rd6 Rd8 Rd1 Rd2 Ba6 Rc2 Rd8 Bd1 Rd2 e2 Rd7 Ke3 Qc7 Ba5 Be7 Bb4 Bd8 Qeg3 Qc6 e1B Qc7 Bf2 Qa5 Qe5 Bb7 Bg1 Ba6 Be6 f7 Be2 f8R Bf7 Rg8 Qeg3 Rgh8 Qe1 Re8+
1B5n/5Brk/Q4N1q/1QP1n2b/1K1BPRN1/1PnPQ2n/1Rp1rn2/3n4 b - - 0 1 legal: proof: d4 c5 g4 h5 gxh5 c4 Bf4 e6 Bc1 Bc5 dxc5 Ke7 Qd3 Kf8 Qd1 Ke8 f4 d5 a4 b5 Bd2 bxa4 Bc1 e5 fxe5 d4 Ra3 d3 cxd3 Ba6 Ra1 Bc8 Kd2 Kf8 Kc3 f5 h4 g5 e4 Kg7 e6 a5 b3 a3 h6+ Kh7 h5 f4 e7 a2 e8Q f3 Qe6 f2 Nf3 g4 Qd2 a4 Qb2 a3 Bd2 g3 Nh4 g2 Be1 g1N Bd2 Qf6+ Kb4 c3 Bg2 f1N Rh3 Ng3 Qc4 Bg4 Qc1 Nh1 Rh2 Nf2 Ng6 Nd7 Bf3 Ra7 Bf4 Ngh3 Qe3 Ne7 Ne5 Ng6 Qb5 Rha8 Qa6 Nh8 Bd1 Bf3 Ng4 Ne5 Be2 Rg7 Bg3 Nc4 Bb8 Ne5 Bd1 Nh1 Rb2 N1f2 Nd2 Raa7 Nc4 Raf7 Rc1 a1N Nd6 a2 Ne8 Qg5 Be2 Rf6 Rf1 Nc2+ Ka5 Na3 Kb4 a1N Qb5 Kg8 Bd1 Nb1 h7+ Kf7 h6 Kg6 Be2 Ra6 Nef6 Ra2 Nh2 Bh5 Nhg4 Nh1 Rf4 N1f2 Qa6 Nc2+ Kb5 Nhf7 h8Q Qh4 Qd8 Nh8 h7 Qg5 Qd7 Qh6 Qd2 Ne3 Kb4 Ned1 Qe3 c2 Qdb5 Nbc3 Nh2 Ra3 Bg4 Ra1 Be6 Rb1 Nhg4 Ra1 Ra2 Nb2 Bd5 Re1 Bc4 Nbd1 Rb2 Nhf7 h8B Re2 Ne8+ Kh7 Be6 Rg5 Bg7 Nh8 Bf7 Nf3 Bf6 Rg7 Bd4 Ne5 Nef6+
qB2n1Q1/4BK1k/Nr6/2rP1R1n/n2brr2/B7/2NPPQPp/1n1N1R2 b - - 0 1 illegal: No proof kernel forced: bxLB
2QBN1Q1/3r2BP/1K2QRP1/2r1qqq1/p1b1Bn2/2R1k2P/1P4q1/qq5N b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 d5 e3 b5 axb5 d3 Kd2 Kd7 Ke1 d2+ Ke2 Ke8 f4 g5 Ra4 d4 Rc4 g4 Kf2 d3 Ra4 Bh6 Ra1 Bg5 fxg5 Nc6 Bh3 Rh7 Bf1 Nd4 exd4 Rh8 Ke3 Kd7 c4 Ke6 d5+ Kf5 Kd4 Kf4 Kc5 f5 d6 a5 h6 e5 h3 e4 d7 a4 g6 e3 h7 e2 b6 e1Q b7 g3 b8Q+ Ke3 Qg4 g2 Ra2 f4 Ne2 g1Q Ng3 f3 Na3 f2 Nb5 Ra5 Bg2 f1Q Ra3 Ba6 Rc3 Qg5+ Kb6 Nf6 d8B Qff5 c5 Nh5 c6 Nf4 Nd6 Bc4 c7 Rc5 Be4 Qg2 c8Q Rg8 Qa8 Rg7 Rf1 Rd7 Nh1 Qee2 Qh4 Qeh5 Ne8 Qe5 Qab8 Qgf5 Qg4 Qhg5 Qe2+ Kd4 Qe1 Ne2 Nc7 d1Q Ba8 d2 Be7 Qg5g3 Rff3 Qee4 Qf8 Qfd5 Rf6 Qdf5 Bd8 Qdc2 Bb7 d1Q Bh6 Qgg5 Ne8 Nf4 Bg7 Qa1 Qc8 Qcb1 Qg8 Qed5 Qee6 Qde5 Rc1 Kd3 Be4+ Ke3 Rc3+
qnn1BNQq/B2P4/1P1P1r2/B1R2n1P/1Q1n2b1/Kn2pn2/3R4/1k1NN3 b - - 0 1 legal: proof: e4 f5 a4 fxe4 c4 d5 cxd5 b5 axb5 h5 g3 h4 g4 a6 Ke2 g5 Qa4 a5 Ra3 Bg7 Nc3 Be5 Ke1 Bg3 Ra1 Rh5 gxh5 g4 Qd1 Bd6 Nge2 g3 Nb1 g2 Ng1 Bg3 hxg3 Ra6 Nc3 Rh6 Nb1 Rh8 f4 Kf7 b4 Kf6 d4 Kf5 Kd2 c5 Kc2 e5 Kb3 h3 d6 a4+ Ka3 c4 d5 h2 b6 e3 b7 Ke4 d7 c3 g4 c2 g5 e2 f5 e1N f6 Ne7 f7 Rh6 f8N Rf6 b5 Nf3 g6 Nd4 Bd2 c1N g7 Ncb3 Nf3 g1N Ne1 Ngf3 g8Q Ndf5 Bb4 Nbd4 Ba5 Qe8 Rg1 h1Q Nc3+ Ke3 Rc1 e4 Qb3 Kd2 Qc4 e3 Qb4 Qg2 Be2 Qg7 Rg5 Qh8 Rb1 Qd8 Rb2+ Kc1 Nd1 Qe8 Rd2 Qd8 Ka2 a3 Bd3 Ndc6 Kb3 a2 Ka3 a1N Bc4 Ncd4 b6 Nab3 d6 Kb1 Qg7 Nbc6 b8B Ba6 Ba7 Qa8 Qh7 Nb8 Bf7 Nc8 Qg8 Bf1 Be8 Bh3 Qg6 Bg4 Qg8 Nfe7 Rd5 Nef5 Rc5
2Q1q3/qBkNB2b/2P5/q1n1P3/n1n1Pb2/3N1NPR/1B1Q2qp/1n2K2R b - - 0 1 legal: proof: f4 c5 g4 e5 fxe5 f5 a4 b5 axb5 a5 d4 cxd4 Nc3 f4 Nb1 Ra7 Nf3 g5 Na3 h5 Bd2 Ra6 Bg2 Rf6 Nb1 Rf5 gxf5 g4 Bf1 g3 Bc1 g2 Ng1 Rh6 Na3 Rg6 Nb1 Rg3 hxg3 Qb6 Rh4 Qc7 Rh1 Qd8 b4 d5 e4 Kd7 c4 f3 b6 h4 b7 d3 f6 h3 f7 d2+ Kf2 d4 c5 d3 c6+ Kc7 b5 h2 Nc3 a4 Nh3 a3 Ng5 a2 Nh7 Bh6 f8N Na6 Nf6 Bf4 N6d7 Nf6 Ng6 Nd5 Na4 Qe8 Bb2 Ne3 Nh4 Nc5 Qc2 d1Q Qd2 Qc2 Ke1 g1Q Rb1 a1Q b8B+ Kd8 b6 Nc4 b7 Qc3 Ng6 Qg2 Nh4 Qa5 Bd6 Qa2 b8Q f2+ Kd1 Qa3 Qa8 Qa1 Be2 f1N Be7+ Kc7 Nf3 Qa2 Ke1 Qa3 Ndb6 Bf5 Nd7 Bh7 Ra1 Qa7 Ra2 Qb4 Ra3 Qbb6 Rb3 Qba5 Rb8 Nfe3 Rd8 Na3 Rb8 Nec4 Rd8 Qg6 Rh8 Qe8 Bf1 Nb1 Be2 Bf5 Rh3 Bh7 Nc3 Nb6 Na2 Nba4 Nb4 Nbc3 Ba3 Nb6 Qc1 N3a4 Bb2 d2+ Kd1 Qh5 Ba6 Nc4 Bb7 Qf7 Nd3 Qe8 Kc2 d1N+ Qd2 Ndc3 Kc1 Nd5 Kd1 Ndc3+ Ke1 Nb1 Qc8+
1RBR4/P5k1/2rr2P1/PrnppK1Q/1N6/Qn1PbN2/1B4n1/b1Nq3R b - - 0 1 legal: proof: f4 a5 e4 f5 c4 g5 exf5 b6 fxg5 b5 h4 bxc4 b4 Ba6 h5 Bb7 bxa5 Bd5 g3 Bf7 g4 Bg6 hxg6 Bg7 Rh4 Bh6 Rh1 Bf8 Ke2 c5 Kf3 h5 Kf4 c3 a4 c2 f6 h4 a6 c4 a7 h3 g7 Kf7 a5 c3 Ra4 h2 Ba6 Rh5 Bc8 Na6 Ne2 Nh6 g8N Nf5 Bb2 c1B Rd4 Bg7 g6+ Kf8 f7 c2 g5 Nh4 Rb4 Ng2+ Kf5 Nc5 Rb8 Bh8 Nf6 Kg7 Rg1 h1R Nd5+ Kf8 Nb4 d6 Nbc3 Kg7 Nd4 R1h4 Nf3 Rd4 Ne2 Rh6 Rb5 Rb8 Rh1 Rb6 f8R Rc6 Rb8 Rh5 Be6 Qd7 d3 Be3 Rfd8 c1N Qa4 N1b3 Qa3 Qb7 Bd7 Qb5 Be6 Qc4 Bc8 Qc2 Nc1 Qd1 Rh2 d5 Rh1 Rh6 Rd7 Kg8 g7 Rhd6 Rd8+ Kf7 Re8 Rc4 Rg8 Rb6 Re8 Rb5 Rd8 Rc3 Kg4 Kg6 g8Q+ Bg7 Qf8 Bf6 Qe8+ Kg7 Qh5 Bfd4 g6 e5 Qa2 Rc2 Kf5 Rc4 Ba3 Ba1 Qb2 Na6 Qa2 Rcc6 Bb2 Nac5 Qa3
nQ6/p1n1r1P1/3rnK2/1pq1Q1BB/3QP3/2r1bP1b/6PN/RR1Nk2R b - - 0 1 legal: proof: b4 g5 h4 b5 hxg5 c6 a4 Qc7 axb5 Qd8 b6 Ba6 Ra3 Bb7 Ra1 Bc8 b5 cxb5 e3 e5 d3 e4 dxe4 f5 Qh5+ Ke7 Qd1 f4 exf4 Ke8 Kd2 Kf7 Kd3 Ke6 Kd4 h5 c4 d5 f3 h4 g6 h3 g7 h2 c5 Qg5 b7 Na6 b8R Nc7 c6 Nf6 Qc2 Nd7 Qd2 Nb6 f5+ Kf6 Nc3 Bc5+ Kd3 Ke5 f6 d4 f7 Qf5 Nd1 Re8 f8Q Re7 Ne2 Be6 Rg1 h1N Qe8 Ng3 Qe3 Nh5 Ng3 Bd7 Rc8 Rb8 Rh1 Nba8 Be2 Qf8 Nf1 Bh3 Qg1 Qf5 Bg5 Bb6 Rd8 Rc8 Qf2 Qd7 Qe3 Qd5 Rd7 Qc5 Qd2 Ne6 c7 Nf6 Qb4 Nd5 Rd6 Rb8 c8Q Ndc7 Qb7 Rc8 Qb8 Ba5 Qc4 Bd2 Rda6 Be3 Rb1 Qb4 Raa1 Qc5 Kc2 d3+ Kc3 d2 Bd3 Qd6 Qb4 Qb6 Bc4 Qc5 Kd3 Nf8 Bf7 Ne6 Bh4 Kf4 Bh5 Rd8+ Qd4 Rd6 Nh2 Rc6 Bg5+ Kg3 Qf8 Rb6 Qff6 Rd6 Qe5+ Bf4 Ne3 Kf2 Nhf1 Rc6 Nd1+ Ke1 Bh6 Be3 Bg5 Bg1 Nf2+ d1R+ Ke3 Nd8 Kf4 Rc1 Nd1 Rd6 Qed5 Nde6+ Ke5 Rc3 Kf6 Bf2 Q5e5 Be3 Nh2+
1RNK1bn1/b1QPP2P/2p5/2R2k1P/Nrr1Q3/B1NB4/2n1Q1p1/q4n1q b - - 0 1 illegal: No possible last move
Q2q2r1/BPN5/n1q1kP2/Q6K/1pb1Bb1B/1R1n3P/rp1nNPR1/Q7 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 c4 f5 cxd5 b5 e4 Qd6 exf5 axb4 a3 b3 a4 b4 Bb2 Qc6 Bc1 Qb5 axb5 Rh6 Qe2 Rh7 Qd1 Rh8 Ke2 Kd7 Kf3 c5 Kg4 g5 d4 e5 h3 e4 h6 e3 h7 e2 d6 e1Q b6 c4 d5 c3 b7 c2 Bd3 b2 Rh2 Bg7 Be4 Qd2 Kh5 g4 Nc3 g3 Nge2 g2 Nb5 g1Q Ra3 Bh6 Nc7 Bf4 Rg2 Na6 Rb3 Qh1 Qe1 Qd1 Be3 c1N Ba7 Nd3 Qf1 Qd2 Qa1 Qhc1 Rg1 Qc6 Rg2 Kd8 d7 Ke7 d8B+ Kf7 d6 Be6 d7 Nf6+ Kh4 Rg8 h8Q Bc4 Be7 Qd1 d8Q Qd2 Ne8 Qd1 Qda5 Qd2 Nc7 Qd1 Bf3 Ne4 Kh5 Nd2 Bg5 Qh1 f6 Qd1 Ne8 Ke6 Be4 Qc8 Bh4 Qc1 Qc7 Qd8 Qca5 Qc2 Ra3 Qa4 Rb3 Qc6 Nc7+ Kd6 Qg7 Nac5 Qb6 Qf8 Bb8 Ra2 Qa5 Na6 Ba7 Qe7 Qf8 Kd7 Qa8 Qd8 Nd5 Ke6 Nc7+
2N5/Pb3rQP/kP5q/1r2Rn2/2b2PnR/1QK4p/rp2q2B/2RN2NB b - - 0 1 illegal: No proof kernel
rQ3Nq1/r7/RpK3Q1/1r6/PQ1PBb2/1n3rN1/1kBPpbPN/1n4R1 b - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 e5 f6 exf6 d4 c3 Bd7 cxd4 Bc8 f4 Be6 h3 Nc6 f5 Bd5 Ba3 Nb8 Bd6 Bf3 Bf4 Bg4 hxg4 gxf4 Ke2 Kf7 Kf3 h5 Ke4 c5 a4 e5 a6 c4 g5 c3 a7 h4 Qe1 h3 Qe2 h2 Qg4 c2 Nf3 c1B Ra3 b6 Ra1 Rh5 Qg3 Bd6 Kd5 e4 Ra2 e3 Bd3 e2 Nc3 Nc6 Ra3 Na5 Bb5 Nb3 Ra1 Bca3 Kc6 Rh7 Rhg1 h1R Raf1 R1h5 Nh2 f3 Ne4 f2 Bd3 Bf4 Bc2 Bad6 Rc1 f1R g6+ Kf8 g7+ Kf7 Qg5 Rf3 Ng3 Be3 Rb1 Bf2 Rb2 Bf4 Rbb1 Nc1 Rb5 Nb3 Ra5 Qf8 Ra6 Ne7+ Kb7 Nd5 Kc6 Nc3 g8Q+ Ke8 Qh6 Nb1 f7+ Ke7 f6+ Ke6 Qhg6 Rb5 Qh8 Qg7 Qb8 Qg8 f8Q Rf7 Qb4 Re7 Qd3 Rh7 f7 Rg7 Kb7 Kd5 Qg6 Rh7 Q4f8 Kc4 Kc6 Rg7 Qa3 Rh7 f8N Rf7 Qb2 Kb4 Qc3+ Ka3 Qb4+ Kb2 Qc8 Rb8 a8B Ra7 Bb7 Rba8 Qb8 Qg7 Bc8 Qh8 B8f5 Qg8 Bfe4
4R2B/QQr1P2n/8/N1PB1b1r/R1p2P2/b1K2p1r/Q1N1rNP1/1q4nk b - - 0 1 illegal: No proof kernel
1R6/PRP2Nb1/1r1rk2p/3P1Nrp/2K1P1q1/2Q1QB1R/2B1Q3/nnbr4 b - - 0 1 illegal: No possible last move, all moves rejected
k1K3Bq/Q2R2p1/2P2Nb1/1P1N1Q1q/3BQr1R/1pN1b1r1/nPb1P3/2q5 b - - 0 1 legal: proof: f4 e5 fxe5 h5 d4 c5 g4 cxd4 gxh5 Qf6 Bf4 Qg5 Bc1 Qd8 a3 d6 exd6 b5 a4 b4 Bf4 Na6 Bd2 Nc7 Bc1 Nb5 axb5 Qc7 Nc3 Qe7 Nb1 Qd8 Kd2 Kd7 Kd3 a5 Kc4 f5 Kc5 d3 h4 d2 c4 a4 h6 f4 h5 f3 h7 b3 h6 f2 Nh3 a3 Nf4 a2 Qc2 d1B Qf5+ Ke8 Kc6 Qh4 Kc7 Ra3 c5 Ra6 d7+ Ke7 d8N Qh5 c6 Bc2 Nc3 Ra4 Nf7 Nf6 Bh3 f1Q Be3 Ne4 Bd4 Qc1 Ne5 Be6 Rd1 Bf7 Ng4 Bg6 Kc8 Kd6 Nfd5 Rb4 Rb1 a1Q Ngf6 Rc4 Rd3 Qh1 Rg1 Qc1 Rg4 Qh2 Rh4 Qhh1 Na4 Nc3 Qe4 Na2 Be6 Rc3 Bg8 Be7 Rd1 Rg3 Nac3 Bf8 Bf7 Rg8 h8Q Qh2 h7 Be7+ Kb7 Rf8 Bg8 Rf7 Kc8 Qh1 Nd7 Rf4 N7f6 Bd8 Be6 Qh2 Qf8+ Be7 Qf7 Bd8 h8Q Bb6 Qh7 Qh1 Bf2 Be3 Qa7 Qh2 Qh6 Qh1 Qg5 Qh8+ Bg8 Qf3 Qf7 Qfh5 Qgf5 Kc5 Nc7+ Kb6 Rd7 Ka7 N7d5+ Ka8 Bg1 Bd2 Bd4 Be3 Qfe7 Bd3 Qc5 Bc2 Qa7#
1Bqnn1B1/P4pr1/n3q1pN/2Q1R3/1b1r2P1/1Q1P3P/3kRKNQ/1rN5 b - - 0 1 legal: proof: f4 a5 g4 e5 fxe5 h5 c4 d5 cxd5 h4 b4 h3 Nxh3 Bf5 Ng1 Be4 Nc3 Bb1 Nxb1 axb4 e4 Kd7 a4 c5 a5 b5 a6 b3 h3 b4 e6+ Kd6 e7 Ke5 e8Q+ Kf4 e5 c4 a7 c3 d6 c2 e6 b2 d7 b3 e7 Nh6 Ra2 Qc7 d8Q Qc3 Qc8 Na6 Ne2+ Ke4 Kf2 Kd3 Qc5 Rg8 Na3 b1Q Nc4 b2 Qb8 Nf5 e8N Nd6 Nf6 Ne8 Qh2 Rd8 Ne3 Rd4 Ng2 Be7 Ra5 Qa2 Rg1 b1R Bb2 c1N Qb3 Rh8 Ng8 Rh7 Nh6 Bd6 Qcd5 Bb4 Qc5 Qa4 Ba3 Qc6 Rh1 Na2 Nc1+ Ke4 Be2 Qe6 Re1 Qcc4 Bb2 Qc8 Ba1 Q4e6 Bc3 Nb8 Rb5 Nc6 Ra5 Nd8 Rb5 Rd3 Be5 Rd4 Bc7 Nc3 Bb8 Nd5 Kg1 Ndc7 Bd3+ Kf3 Re2 Na6 Bf5+ Bc3 d3 Bb4 Rb7 Rh8 Rc7 Rg8 Bh7 g6 Re7 Rg7 Re5 Qec6 Bg8 Qe4 Ne1+ Ke3 Ng2+ Kd2 Kf2 Qd5 Re4 Qdd7 R7e5 Qe6 Re2#
1r1k1Q2/1B1rn1B1/pr1NP2K/4N3/qR6/bbRPRP1p/P5b1/1QQ1r3 b - - 0 1 legal: proof: h4 c5 b4 d5 bxc5 g5 e3 gxh4 Ke2 d4 Ke1 d3 cxd3 f5 Ke2 e5 Ke1 Nd7 Ke2 Ndf6 e4 Nd5 exf5 e4 Ke1 e3 Rh3 e2 Rh1 Ne3 dxe3 Kd7 Kd2 Ke8 g4 e1R f6 h5 f7+ Ke7 e4 b5 g5 b4 e5 b3 e6 b2 c6 h3 g6 h2 c7 a6 g7 h4 Nc3 b1B Ne4 h3 Nf3 Rb8 Nd6 Bb7 c8Q Qb6 Ne5 Qd8 Bb2 Re4 Bg2 Qc7 Re1 h1R Re3 Qd7 Qcc1 Nh6 g8R Rb4 Rg4 Rb6 Rb4 Rh7 Qb3 Ba8 Bb7 Ng8 Bd4 Bc2 Qbb1 Kd8 Ke2 Qa4 Kf3 Qa3 Kf4 Re1 Kg5 Ne7 Bb2 Rg7+ Kh6 Bb3 Bd4 Bd5 Bc3 Bg2 f3 Qa4 Bc8 Bd5 Bb7 Ng6 Ndc4 Bc5 Nd6 Ne7 f8Q+ Qe8 Rb3 Ba3 Rb4 Rf7 Ng6 Bb3 Bg7 Nc6 Ne5 Rd7 Qbc2 Ne7 Rb1 Bd5 R1b3 Bc4 Rc3 Bb3 Qg8 Rc7 Qf7 Qa4 Q2b1 Rd7 Qf8#
2B3R1/1R1P3b/1p2BrkP/2N2nN1/Kb1p4/1n1b3q/BPnQ2PN/1n3Q2 b - - 0 1 legal: proof: c4 d5 cxd5 b6 a4 Nc6 a5 Rb8 a6 Rb7 axb7 Nb8 Nf3 a6 Ng1 a5 f4 e5 d4 h5 d6 g5 fxg5 h4 d5 Be7 Be3 Bf8 Bf2 h3 Bd4 exd4 Nxh3 Bg7 Ng1 Bf8 Kd2 c5 Kc2 f5 Kb3 Kf7 h4 c4+ Ka4 f4 e4 c3 h5 f3 e5 c2 e6+ Kg7 e7 c1N e8B f2 g6 Rh6 d7 Rh7 d6 Qe7 d8N Ne2 d7 Nh6 Nf3 Nf5 Nh2 Qe3 Nd2 Rh6 Ne4 Qh3 Nf7 Na6 b8Q Bb4 Qf4 Bb7 Nc5 Be4 Qdd2 Bb1 Ng5 Nc3+ Kb3 Be4 Bf7 Nb1+ Ka4 Kf6 B1c4 f1B g7 Bfd3 g8B Kg7 Rf1 Rf6 Bfe6 Kh6 Qf3 Kg7 h6+ Kg6 Kb5 a4 Qff4 a3 Ka4 Nb8 Ba6 a2 Bc8 Nc6 Rf3 Na5 Rg3 Nb3 Qf1 Na3 Rc1 a1N Rc3 Na5 Ba2 N1c2 Bge6 Nb3 Nf7+ Kh5 Rg8 Nb1 Rc4 Ne7 Ng5 Bh7 Nce4 Nf5 Rc7 Ba6 Nc5 Bd3 Re8 Kg6 Rb7 Bg8 Rf8 Bh7 Rg8+
qRb5/1n1PQP1R/5p1B/n3n2q/4PnN1/pBbQ2KN/1P1Qr3/3k3B b - - 0 1 illegal: No possible last move
1qRr4/Q1Q1N1k1/P1K5/qp2b2q/NRQ1B1PP/4B1np/3P1qq1/3r1B2 b - - 0 1 illegal: No extended proof kernel
2KQBb1R/q2R2N1/1PNP2P1/1k2B2N/1r1pbQ2/1PQ1p2q/b1q5/n5b1 b - - 0 1 legal: proof: e4 f5 exf5 d5 h4 g5 c4 gxh4 a4 b5 axb5 d4 Bd3 a6 Be2 Nc6 Bf1 Nb8 d3 c5 Qe2 a5 Qg4 Ra7 Qe2 Rd7 Qd1 Nc6 Rh2 Ne5 Rh1 Rd5 cxd5 c4 Be2 c3 Bf1 Nc4 dxc4 Qd6 Ra2 Qc7 Ra1 Qd8 Ke2 Kd7 Kd3 e5 Ke4 h5 f4 a4 g4 a3 g5 a2 b3 c2 f6 h3 Kf5 e4 b6 h2 g6 h4 d6 h3 c5 Rh7 f7 Qh4 Nc3 Qe7 Qe1 Qe8 Nf3 Rh4 Nd5 Nf6 Qc3 Bb7 Bb5+ Bc6 Ng5 Qc8 Ne6 Ng4 Ng7 Ne3+ Ke5 Rh6 f5 Rh5 Nf4 Rg5 Bd2 c1B Nfh5 Nc2 Bf4 Be3 Kf6 Qc7 Be5 Bg1 Re1 a1Q Re3 Kd8 Ke6 Qaa7 f6 Na1 Re1 Bb7 c6 e3 Rf1 Ba6 Ba4 Bd3 Rc1 Qcb8 c7+ Kc8 Bd7+ Kb7 c8N Ka6 Be8 Qbc7 Ne7 Bb1 Nc6 Ba2 Rf1 Kb5 Rf3 Be7 f8Q Rf5 Qf7 Bf8 Qe7 Rg5 f7 Rf5 Qd8 Rg5 Bg3 Rc5 Be5 Rc4 Rf4 Rb4 Rh4 Bf2 Rc1 h1Q Rc2 h2 Rc1 Be7 f8Q Bg1 Qf4 Bf8 Rc2 Qg2 Rf2 h1B Rh2 Qcb8 Rf1 Qc2 Rf3 Qa5 Kd7 Qba7+ Kc8 Bg2 Qe4 Qa4 Rf7 Bh1 Qf4 Be4 Ng3 Q4a5 Rh8 Qa4 N3h5 Qd7+ Kb8 Qh3 Rd7 Qa7+ Kc8
NbQ5/1b2r1b1/P3p1NQ/2r1R1rB/4P1rr/1k1P3r/R3RPp1/3KBN2 b - - 0 1 legal: proof: g4 a5 b3 f5 b4 axb4 h3 g5 gxf5 g4 h4 c6 Rh2 Qb6 Rh3 Qe3 Rh1 Qg5 hxg5 Ra6 Ba3 Ra4 Bc1 Ra8 d4 d5 Bg2 c5 Bf1 c4 Rh5 Nd7 Rh1 Nc5 dxc5 Ra5 Qd2 Ra6 Qd1 Ra8 Kd2 d4 Rh6 d3 Ba3 Nf6 Rh1 Nh5 Bc1 Nf4 Ba3 Ra7 Kc1 d2+ Kb2 Nd3+ cxd3 Kd7 Kc2 Ra8 Bc1 Ke8 e4 Kd7 a4 Kc6 a5 Kb5 c6 h5 a6 e6 c7 h4 g6 b3+ Kb2 Kb4 g7 b5 g8R h3 f6 g3 f7 g2 Qe2 d1R Qc2 h2 Be2 Rh3 Bg5 Rc1 Bg4 Bg7+ Bf6 Bb7 Rh8 Rg8 c8N Rh4 Ra2 c3+ Ka1 Rh3 Nf3 Rh4 Re1 h1R Bd4 R1h3 Bh5 Rg4 Nb6 Rgh4 Qe2 c2 Kb2 Rg4 Be5 Re8 f8Q+ Re7 Qe3 Rhh4 Re2 Rch1 Rh6 c1B+ Ka1 R1h3 Qc8 Bd2 Qg5 Bf4 Nbd2 b2+ Kb1 Bg3 Kc2 b1R Bb2 Bb8 Nf1 Rc1+ Kd2 Rc2+ Kd1 Rc5 Na8 Kb3 Bc3 b4 Ne5 Rcc7 Rad2 Ka4 Rg6 b3 Rc2 b2 Be1 b1R+ Qc1 Rc3 Rg5 Rb5 Ng6 Kb3 Ra2 Rd5 Rf5 Rcc5 Qh6 Re5 Rf6 Reg5 Rf5 Re8 Rd5 Re7 Re5
B2NR3/k2n1PR1/1P1N1Q2/3rQP2/P1bBpK2/8/rq1p1pb1/B1n1n2N b - - 0 1 illegal: No possible last move, all moves rejected
2N3Q1/1B5q/1B1p1P1k/q1bR3r/n4Nn1/Qr3pP1/P1bPBp2/K1Q2R2 b - - 0 1 legal: proof: c4 a5 h4 g5 hxg5 e5 b4 f5 bxa5 b5 cxb5 f4 e4 Qf6 f3 Qf5 exf5 e4 Rh5 exf3 Rh6 Bd6 Rh1 Bf8 b6 Kf7 g6+ Kg7 b7 c5 a6 h5 a7 c4 g3 c3 f6+ Kh6 g7 c2 Nc3 h4 Be2 h3 Bb2 c1Q Nb5 h2 Bd4 Bc5 Nh3 Qa3 Qc1 d6 Kd1 f2 Kc2 f3 Kb1 Qc3 Nf4 Na6 b8Q Qa5 Qc7 Rh7 Qa3 Rb8 a8B Bf5+ Kb2 Bb1 Bb7 Bc2 Na7 Rh8 Rhe1 h1Q Nc8 Qh5 Rac1 Qg6 Ka1 Qh7 Be4 Rb3 Rf1 Ne7 g8Q Nf5 Ba8 Ne3 Bb7 Ng4 Qc6 Ba7 Bb6 Nc5 Rb1 Na4 Rb2 Bg6 Qc1 Bc2 Bd8 Bc5 Bb6 Re3 Rb5 Rb3 Qd5 Re8 Qg8 Re5 Nd3 Rh5 Nf4 Be3 Rf5 Bc5 Rd5
5rB1/1R1Ppr2/p1QP2r1/3nQNB1/7K/3kRRpQ/q3N1PP/5nbn b - - 0 1 illegal: No possible last move, all moves rejected
knQ1q1Q1/7P/6B1/3P1rpq/N2p1P2/4QR1b/1N1BqrPp/K1Nb3R b - - 0 1 illegal: No proof kernel
b1q3nQ/4p2p/Bb2qP2/2BpR1P1/QPbrN3/1NN5/2K1RP1n/5B1k b - - 0 1 legal: proof: e4 f5 d4 b5 a3 b4 axb4 c5 Ra4 cxd4 Ra6 Qb6 Ra1 Qd8 exf5 g5 h4 a5 hxg5 a4 b3 a3 Ke2 Ra6 Ke1 Ra4 bxa4 Bg7 Ra2 Bh6 Ra1 Bf8 Kd2 Kf7 g4 d5 c4 a2 c5 d3 c6 Bd7 a5 Bh6 a6 Qc8 c7 Bc6 a7 Ba8 Ne2 Nd7 Nd4 Ne5 Nb3 Nf3+ Kc3 d2 g6+ Kf6 g5+ Ke5 g7 Kf4 Kc2 Nh2 Nc3 Qe6 Rb1 a1Q c8B Qaa6 Rb2 Qac6 Bca6 Qcc8 Qe1 Kf3 Qe5 Bc6 a8Q d1B+ Kb1 Bb7 Be3 Be2 Bc5 Bc4 Re2 Bc6 Qa7 Ba8 Kb2 Nf6 Kb1 Rf8 g8N Bg7 Kc2 Rf7 Qd7 Bh8 Qa4 Rf8 Nh6 Ng8 Nf7 Bf6 Qb8 Bd4 Nd6 Rf6 Rg1 Rh6 f6 Rh4 Re5 Rf4 Nde4 Rh4 Bd6 Bb6 Bc5 Rg4 Bh3 Rf4 Re1 Rh4 Re2 Rf4 Bf5 Kg2 Bh3+ Kh1 Bf1 Rh4 Ned2 Rd4 Nde4 Qb7 Qf8 Qbd7 Qg7 Qc8 Qh8
1N1r1n2/1P2BnQq/1pKR1qpP/1n3PP1/4p3/2BNk3/Q3bQR1/1rR5 b - - 0 1 legal: proof: e4 d5 g4 f5 exf5 h5 c4 Qd6 cxd5 Kd8 g5 Ke8 Be2 Qd8 Bg4 hxg4 a4 b6 a5 Qd6 a6 Qc6 Qb3 Qb7 Qc2 Nd7 Qd1 Nb8 axb7 e5 Qf3 a5 Qe2 a4 Qd1 Bb4 b3 Ba5 b4 Bd7 bxa5 Bc8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 f4 g6 h4 a3 d4+ Kc4 f6 c5 f5 g3 f7 g2 f8Q a2 d6 Rh6 d5 Nc6 d7 Nb4 d8R Nd3 d6 Rh8 a6 Be6 a7 Bf7 h5 Nf4 d7 Ne6 Bb2 Nh6 Ne2 g1Q Nd4 Qh2 Qg7 Nf8 Bc3 Be6 Qd2 Nf7 Rc1 Rb8 Re8 Rd8 a8Q Rh6 Qf2 Rh8 Ke3 e4 Nc6 Qh1 Kf4 Kd3 Nb8 c4 Na3 Rh6 Rab1 a1Q Nc2 Bd5 Re5 Bc6 Re7 Bb5 Rb2 Rh7 Qa2 Ba6 Bd4 c3 Re6 Rh8 Rd6 Rh6 Ne3 c2 Nd5 Rh8 Bc3 Qh3 Rh1 c1N Rc2 Nb3 Rhc1 Nd4 Re2 Rc8 d8B Nb5 Be7 Rc4 Rb2 Rb4 Rbc2 Rb1 Re2 Nd8 Ke5 Qh2+ Qf4 Rg8 Rg2 Qh1 Qh2 Qb2 Nf4+ Ke3 Kd5 Nf7 Kc6 Qa1 Bb4 Qf6 Bc3 Na7+ Kc7 Be2 Nd3 Nb5+ Kc6 Nd7 Qh4 Rd8 Qe1 Nf8 Qf1 Qh2 h6 Qhe5 Qg8 Qg7 Qe1 Qh7 Qg7 Qf6 Qf2#
2krN2n/PB3b1B/3Q2P1/n2N1p1K/r2R4/B2P1rb1/1pRP2Qp/1nQ5 b - - 0 1 legal: proof: c4 d5 cxd5 e5 h4 g5 hxg5 a5 f4 Qd6 fxe5 Qg6 b4 Qd3 exd3 axb4 Kf2 Kd8 Kf3 c5 a4 h5 g4 b5 g6 f6 g7 b3 e6 b4 d6 c4 g5 b2 d7 c3 e7+ Kc7 e8B c2 d8Q+ Kb7 a5 b3 a6+ Ka7 Ne2 h4 Bh3 Nc6 Nbc3 Kb8 a7+ Kb7 Qd6 b1N Ra4 Nge7 g8Q Ng6 Ba3 c1R Nf4 b2 Rd4 Na5 Ne4 Rc4 Qc1 Be6 Bf5 h3 Kg4 h2 Bc6+ Kc8 Nd5 Rh3 Rf1 Rg3+ Kh5 Nh8 Bh7 f5 Nef6 Ra4 Ne8 Bf7+ g6 Rb8 Rff4 Bh6 Rc4 Bg7 Rc2 Rf3 Rd4 Be5 Qgf8 Bg3 Qfe7 Rb7 Qe2 Rd7 Qg2 Rd8 Bb7+
3nNbR1/3PP1r1/2n5/PNPk2Br/4pR2/Q1Kpp3/QQ2r1R1/rB5b b - - 0 1 illegal: No proof kernel
3B2qQ/3RP1r1/N1qP2rN/1pppq1R1/2NP1nP1/KQ6/2b2r2/3RkB2 b - - 0 1 legal: proof: b4 d5 h4 b5 f4 e5 fxe5 g5 hxg5 a6 c4 Ra7 c5 Bd6 cxd6 Ra8 a4 Nd7 a5 Nb6 axb6 a5 Ra2 axb4 Ra3 Nf6 Ra1 Ng8 e4 Kd7 g4 Kc6 e6 Kc5 d3 Kd4 Kd2 h5 Kc2 f5 Kb2 b3 g6 h4 b7 h3 b8R h2 e7 f4 e8Q f3 g7 f2 e5 Rh7 e6 Nf6 g8N Nh5 e7 Bf5 Bd2 Rg7 Nc3 Nf4 Rb7 c5 Rba7 Qb6 Rd7 Qc6 Nh6 Rb8 Ka3 b2 Na2 b1Q Qb3 Qe1 Bc3+ Ke3 d4 Bc2 Qh8 Rbg8 Nb4 Rg6 Rb1 R8g7 Rd1 Qe2 Na6 Qe1 Be2 f1R Nf3 Rf2 Bf1 Qe2 Ne5 Qe1 Rg1 h1Q Nc4+ Kf3 Rg2 Qe5 Rh2 Kg3 Rh5 Kf3 Bg2+ Ke2 Ba5 Qh4 Bd8 Qhg5 Rd2+ Ke1 Bf1 Qgf6 Rf5 Qfe6 Rg5 Qg8 Rd1+
B1QR4/1N1pP1qk/PN2p1r1/1Rn1Brn1/1Rr5/2QP4/Pr2p1K1/4r1B1 b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 b5 f4 b4 f5 e6 f6 Ba6 e4 Bb5 cxb5 Be7 fxe7 f5 b3 a4 bxa4 fxe4 a5 Kf7 Kf2 g5 h4 Kg7 h6+ Kg6 h5+ Kh7 d3 c5 b6 g4 a6 g3+ Kg2 c4 b7 e3 Nc3 b3 Qc2 b2 Nd5 b1R Ne2 c3 Nb6 Qe8 Rh4 Nf6 Nd4 e2 Nf5 Rf8 Be3 Re1 Bg1 Ne4 Rb1 Ng5 Nd6 Qf7 Rhb4 Nc6 b8Q Nd4 Qc8 Qg7 Nb7 Nb3 Qb2 c2 Qbc3 c1R Rb2 Kh8 h7 Rb8 Rb5 Nc5 R2b3 Qf6 R3b4 Kg7 h8B+ Kh7 h6 Qg7 Na5 Rf5 Nb7 Qf8 Be5 Qg7 Qa3 Rc4 Qc3 Kg6 h7 Kh6 Kh1 g2+ Kh2 Kg6 Kg3 Kh6 h8R+ Kg6 Rd8 Kh7 Bh2 g1R+ Bg2 Rh1 Bg1 Rh6 Bh1 Rg6 Kg2 Ra1 Nd6 Nce4 Ra4 Rc7 Rd5 Qf8 Kh2 Rb1 Nbc4 R8b2 Rb4 Qf6 Nb6 Rc4 Rdb5 Nc5 Ba8 Re1 Nb7 Qg7 Kg2
1Q4n1/R2Bb3/qP2nkpP/4Q3/1R1p1p2/2q1NKp1/b1Q1rNPP/2R1B3 b - - 0 1 illegal: No proof kernel
Rb1B4/2PNP2p/1Kprp2P/RpB1qn1n/1BR1P3/r1q1Q3/6kQ/6N1 b - - 0 1 legal: proof: f4 a5 b4 e6 bxa5 Qe7 f5 Qd8 f6 Ra7 Bb2 Ra6 Bc1 Ra8 g4 b6 Ba3 Qe7 fxe7 f5 Bb4 f4 Ba3 Ba6 Bc1 Kf7 c4 c5 Na3 Bb7 Nb5 Be4 Nc7 Bf5 gxf5 Nf6 Na6 Nh5 Nxc5 Nf6 Na6 Ng8 Nc7 Ra6 Nf3 Ra7 Ng1 Ra8 c5 Kf6 c6 Kf7 Nb5 Ke8 c7 Nh6 Bg2 Ng8 Bc6 dxc6 Kf2 Kd7 Kf1 Nf6 Ke1 Ng8 Kf2 g5 d4 g4 e4 f3 Ke3 f2 h4 f1Q a4 g3 h5 g2 d5 Na6 Kd4 Rb8 d6 Rc8 f6 Nh6 f7 Ra8 Na3 b5 Qe1 Ng4 h6 Rb8 Bd2 Rc8 Bb4 Qf3 Nc4 Ra8 Qe3 Nc5 a6 Nf6 a7 Nb7 a5 Bg7 a6 Rhd8 f8B Qg3 Ra5 Nh5+ Kd3 Be5 Bg7 Bd4 Bf6 Bb6 Bd4 Qf4 Bdc5 Qe5 Nh3 g1Q Rh2 Qf4 Rc2 Qg7 Ng1 Qfe5 Rc3 Rac8 a8R Ba7 Rc1 Bb8 Rc2 Rf8 Rc1 Rf3 Rc3 Rd8 Nb6+ Ke8 d7+ Kf7 Rc4 Kf6 Bd4 Nd6 Bdc5 Qf4 Kc3 Kg5+ Kb3 Kg4 Ka3 Kg3 Kb3 Rc8 d8B Kg2 Nd7 Qgg3 Kc3 Qh3 Kd4 Qfh2 Bb6 Nf5+ Kc5 Q2g3 Ba7 Qe5+ Kb6 Rf1 Kb7 Qhg3 Bac5 Rd1 Kb6 Rd6 Ra2+ Qb2 Ra7 Kh2 Qg5 Qe5 Qe3 Qd2 Rb7 Kh1 a7 Qdc3 Ra1 Kh2 a8Q Kh1 Qa2 Ba7+ Ka6 Ra8 Rb8 Nf4 Qaf2 Nh5 Qh4+ Kg2 Kb7 Bb6 Ra4 Ra6 Ra8 Ba7 Ra1 Ra2 Qhf4 Bb8 Kb6 Rf2 R1a5 Ra2 Qh4 Ra3 Qh2+
K1B1R3/2BQnN2/1BPpQ1pk/3N2qP/N1P5/2np2qp/2P5/2rRbq2 b - - 0 1 illegal: No proof kernel
6b1/1R2r1p1/Pp1PQB2/qk1N2Pp/n2qQ1N1/1R1R2NP/bB5p/2K2b2 b - - 0 1 illegal: Other
Qq1B2q1/3pK1N1/2R1RBbP/Q4pPr/4pNkq/2N1PP2/1qp5/1Q3n2 b - - 0 2 legal: proof: c4 b5 cxb5 a6 b4 Bb7 b6 Nc6 b5 Bc8 b7 Nb8 b6 Nf6 Qa4 Ng8 Qb3 Nc6 Qd1 Nb8 d4 c5 g3 c4 Bg2 Ra7 Bc6 Ra8 Bb5 axb5 Qd2 Ra3 Qd1 Re3 Nh3 h5 Kd2 g6 Ng5 h4 Ke1 h3 Nf3 Bh6 Kf1 Bg5 Ke1 Re5 Ng1 Rc5 dxc5 Bh4 Qa4 g5 Qb3 g4 Qd1 Nc6 Bh6 Nd4 Bc1 Nf5 gxh4 g3 Kf1 g2+ Ke1 Ng3 hxg3 Rh5 Be3 Rh6 Bc1 Rh8 Kd2 e5 Ke3 Ke7 Ke4 Ke6 b8B h2 a4 c3 b7 f6 h5 b4 h6 b3 g4 b2 e3 Qf8 g5 Qf7 c6 Qe8 c7 Qh5 a5 Qh3 a6 Ne7 a7 Rf8 a8Q Nf5 Ne2 g1Q Qda4 Qgg3 Q4a5 c2 Nbc3 b1Q Bb2 Qh5 Rd1 Qf7 Ra2 Qg8 Nf4+ Ke7 Ba1 Qb2 Rd6 Re8 Rc6 h1Q+ Ng2 Qhb1 Nf4 Qh4 Ra3 Kf7 Kd5 Ng3 Kd6 Nf1 Rb3 f5 Rbb6 e4 Ra6 Re5 Ba7 Rb5 b8Q Bb7 c8N Rb3 Bb6 Rb4 Nd3 Kg6 Bd8 Kh5 Nf4+ Kg4 Ke7 Rb5 Re6 Bd5 Nd6 Rb4 Ne8 Rd4 Nb5 Rd1 Nc3 Bc4 Rec6 Bf7 Ng7 Bg6 Re6 Re1 Rac6 Rc1 Qba7 Qb8 Q7b7 Qb2 Qb3 Nh2 Qba2 Rh1 Qb1 Nf1 Nce2 Qc1 Bf6 Qcb2 Nc3 Qg3 Rc8 Rh5 Rcc6 Qh4 f3+
2r3qr/1nB5/KbPNq1NP/1r4P1/kr1R4/2RQ3b/b2QN1Pr/3Rn2B b - - 0 1 illegal: Other
kq2b2b/2Bnrb2/1PqR2rP/R4N2/1K1bQ3/2P1PB2/qQ2b3/1N2QnB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 a5 h4 d5 b4 Kd7 c3 Kc7 h6 Kb7 h7 g5 b6 f5 h5 a4 h6 d3 e6 d4 e7 a3 e8Q f4 b5 g4 Ra2 g3 Qe6 g2 Nf3 g1B Rh4 Ra7 Qe8 Be6 Ra1 a2 Nh2 f3 Bg2 Bf7 Bh3 f2 Nf1 Nf6 Qe1 Nbd7 Na3 Ka8 Nc4 Bg7 Nd6 Nd5 Nf5 Qb8 Bg2 Rg8 Bf3 Bh8 Qe4 Rg6 Ba3 Rb7 Bd6 Ne3 Bc7 Be8 Rd1 a1Q Rh5 Qa2+ Kc1 Bf7 Nd2 f1Q Nb1 Qg2 Rg5 Nf1 Rh5 Qa6 Kb2 d2 Rg5 Be8 Kb3 d3 Kb4 Bgd4 e3 Qf2 Bh2 Qa2 Bg1 Qfh2 Rh5 Qhc7 Rg5 Qc6 Rh5 Bhg7 h8Q Ra7 Qg8 Bh8 Qb3 Bf7 Qb2 Be8 Rc1 d1B Rc2 Rc7 Rd2 Bb3 Rd1 d2 b7+ Ka7 Rg5 Bbf7 Rh5 Nf6 Rg5 Re7 Rh5 Nd7 Rg5 Qe5 b8B+ Ka8 b6 Qc7 Rh5 Qc8 Bc7 Qb8 Rc1 d1B Rg5 Be2 Rd1 Bdf6 Rd6 Bd4 Ng7 Qaa7 Ra5 Qa6 Nf5 Qaa7 Rad5 Qa2 Ra5+
3Q4/BB4k1/Pq1bQ1n1/Pb3bQb/PB6/Rn4rN/1qr1R1PN/2bnK3 b - - 0 1 illegal: No proof kernel
N3q1R1/4B1P1/4Knbk/3r2bb/1BPrRPN1/2Q2R2/1bbPB1q1/Q1r2n2 b - - 0 1 illegal: No proof kernel
5b2/rR1P4/qrk2b1b/1BB1P1NN/2b5/R1Nn1PQ1/1rnqP1bK/Q2Q4 b - - 0 1 illegal: No possible last move, all moves rejected
2r1r2Q/Bb1Pr3/qPPb3P/2Rr1B1r/1k3q2/1Rn5/1KQQn1n1/N3N1R1 b - - 0 1 illegal: No proof kernel
3RNKn1/4Q2r/kbnR4/q1P1BB2/b2r4/PN2r1qr/1PQ1qP2/4bN1R b - - 0 1 illegal: No proof kernel
2r1b2q/1r1nR1b1/bB3P1n/R4Q2/1nPk3N/1BN1q3/RK2PrPB/5Q1b b - - 0 1 illegal: No proof kernel forced: bxLB
1b4bR/1bb2r1r/1n2P2N/1nQ2N2/kP1q1nq1/6BR/1P4P1/qQ2KBQN b - - 0 1 legal: proof: h4 d5 f4 b5 c4 g5 hxg5 e5 cxd5 exf4 a3 b4 axb4 Bb7 Qc2 Ba6 Qd1 Bc8 e4 Kd7 d4 c5 d6 Kc6 d7 h5 g6 a5 e5 f5 g7 h4 Nd2 f3 Be2 h3 Ra3 a4 Rc3 a3 Rh2 a2 Re3 a1N Rd3 Kb5 d5 c4 d6 f2+ Kf1 c3 Nb1 c2 Rf3+ Ka4 Qd2 f4 Qc3 Ra7 Rh1 h2 Re3 Rh7 Bh5 Bb7 Bg4 Nb3 Be2 Ne7 g8N Ng6 Rh3 Nd4 Nf3 Nb5 Nd4 Qb6 d8Q Nd7 Bd2 c1B Nf5 Qd4 Be1 Nb6 d7 Bd6 Ngh6 Bb8 Qc5 Be3 Nd2 Bc7 Rg1 h1Q Ne4 Qh2 Qe8 Qg3 d8Q Qg4 Rgh1 Bc1 Neg3 Rf7 Bf3 Bd2 Ke2 f1Q+ Kd1 Rh7 Be2 f3 e6 f2 Qdd7 Nf4 Qg6 Qg1 R1h2 f1B Nh1 Rf7 Qdc6 Rh7 Qf3 Rf7 Bc4 Bd3 Qh7 Bb1 Bf1 Bd3 Bf2 Be1 Bh4 Bg3 Kd2 Bb8 Qf2 Bc2+ Ke1 Bc7 Ng7 Bg6 Ngf5 Bb8 Qg7 Bh7 Qg6 Bg8 Qh7 Nh5 Qg6 Bgc7 Bg3 Nf4 Qe3 Qc4 Qh7 Qa2 Qec1 Qd4 Qb1 Qa1 Qg7 Qd7 Qgd4 Qd6 Qe3 Qd4 Qg1 Rf6 Qc3 Bd6 Rh4 Bc8 Qc5 Rg7 R2h3 Bb7 Nf7 Bdc7 Rh8 Rh7 N7h6 Rf8 Qe3 Rff7 Qg1
2B1b1RB/n1br3n/K1P1kbB1/2R3rN/6qr/3Q1PQP/1Pq1N1R1/1rn5 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 e5 Kc4 g5 c6 d5+ Kb3 a5 Ka4 e4 c4 g3 f3 d4 h3 g4 c5 g2 c7 g3 b6 d3 Kb5 d2 f6 a4 b7 e3 Qe2 d1R Bd2 a3 Bc1 a2 Nc3 Ke6 f7 Be7 f8Q Bd7+ Kb6 Nf6 Qe1 e2 Rh2 Rh4 Rh1 Nh7 Bd2 Bf6 Ne4 Qc8 Bc3 Ra5 Rc1 a1N Qd8 Be8 Rh2 Nc6 b8R Nb3 Qd3 Na7 c6 Rg5 Qf2 e1B Ne2 g1Q Rg2 Qh2 Be5 Qd7 c8B Ba5+ Ka6 Bc7 Rc5 Nc1 Ra8 Be7 Bh8 Bf6 Rg1 g2 N4g3 Rd2 Nh5 Rd1 Qg3 Rd2 Rh1 g1R Rb8 Qf2 Rh2 Rd1 Rg2 Rh1 Nc3 Qc2 Ne2 Rd2 Bb7 Qd4 Rc8 Qg4 Rb8 Bf7 Rg8 Be8 Bc8+ Kf7 Qb5 Rd7 Qd3 Ke6 Qc3 Qd4 Ng1 Nb3 Bd3 Qg4 Ne2 Rb1 Bg6 Nc1 Qd3
R1n2rB1/1KB1b3/2PR4/QPNN1kR1/3rbb2/5Qqq/PPr1qQn1/4b3 b - - 0 1 illegal: No proof kernel
2Q2BR1/4Q2n/1PPN2Q1/7q/q1r1b1B1/2qn2NR/1PPnR2K/1nrkb1r1 b - - 0 1 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 gxh4 a4 f5 axb5 Nf6 exf5 Ng8 g4 Kf7 f4 Kf6 Kf2 e5 Kg2 h5 b6 d5 c6 a5 Qd2 a4 Ne2 d4 Qb4 h3+ Kg3 a3 Qb3 a2 Nec3 h2 Bg2 e4 Rf1 h1R Bh3 e3 Rf2 h4+ Kg2 e2 Qd5 e1Q Nd2 d3 Nf3 d2 Na4 d1N Ng1 Na6 Re2 Nb4 Qa5 Nd3 Nc5 Qd4 Qa4 Nc3 Re7 Nb1 Re2 Qec3 Nb7 Bb4 Nd6 Qdc4 Qb3 Ra4 Be3 Rh5 Bc5 Rg5 Qa3 Ba5 Qb4 Q4b3 Qe4 Rc4 Ba3 Qa4 Bc5 Kg7 f6+ Kh6 f7 Nf6 f5 Nh7 f6 Bf5 f8Q+ Rg7 f7 Kg5 Qee8 Kf4 g5 Rg6 Qfe7 Be4+ Nf3 Re1 Kh2 Rc1 Bg4 h3 Nd4 Rg8 g6 Bb4 Rd2 Ke3 f8Q Ba5 g7 Bb4 Kg3 h2 Qg6 h1Q Qc8 Qh5 Rh2 Ba5 Ne2+ Kd2 Rh3 Kd1 Bb4 Nd2 Rb1 a1N Kh2 Nab3 Ra1 Nb1 Ng3+ Bf3 Ra3 N3d2 Rb3 Rf4 Ba3 Rc4 Rb5 Bb4 Re5 Ba5 Re2 Be4 Qef7 Rf8 Qfb7 Rf1 g8R Rg1 Qe7 Bb4 Rf8 Bc5 Rg8 Bf2 Bc5 Be1 Be3 Qa2 Bh6 Qa4 Bf8
2RKN3/b2n1PBN/R3Q3/4r2P/2BQbq2/1qP1n2n/b2q1P1b/1B1Q2rk b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 h5 a4 c5 axb5 Nh6 dxc5 Ng8 g4 hxg4 Ke2 Kf7 Kd3 Kf6 Kd4 e5+ Kd5 a5 b4 g5 h4 e4 h5 a4 c6 g3 c3 g2 b6 e3 c7 e2 b5 e1Q b7 g4 b6 a3 Bc4 g3 Rh3 a2 Nd2 Kg5 f6 Kf4 f7 Qg5+ Kd4 d5 Rh1 Ra5 Be2 Bf5 c8B Nh6 Nc4+ Qd2+ Bd3 Ng4 Ne2+ Kf3 Re1 g1B Nd6 Kg2 Be6 Kh1 Nf4 g2 Nh3 Nd7 b8Q Rg8 b7 Ne3 Qe8 Be4 b8Q Qf4 Qb6 Rg4 Ng5 Rg3 Rb1 a1Q Nh7 Qaa2 Ra1 Qb3 Qa7 Rc5 Ra6 Be7 Qc8 Bd8 Qc6 Bb6 Ne8 Rg6 Bf5 Rg7 Qe6 Rg4 Qb8 Ba7 Qbb6 Rg5 Bg6 Re5 Qb4 Ra5+ Qbb6 Ra1 Ba3 Rb1 Bf8 Rc1 Bg7 Rb1 Qdg4 Rd1 Re2 Bh2 Re1+ g1N Re2 Nb8 Kc5 d4+ Kd6 Nd7 Ke7 Nh3 Kd8 Rg1 Bc4 d3 Qc5 Qe1 Qcd5 d2 Qd4 d1B Rb2 Bdc2 Qgd1 Bb1 Bf5 Ba2 Rd2 Ba8 Bb1 Be4 Rb2 Qa4 Rb5 Qd2 Rb8 Qb3 Rc8
qb1Q1rBK/RP5P/1B2n1Pn/bN1q4/1N1RP3/2n2r1B/2r1k1NQ/6bb b - - 0 1 illegal: No proof kernel
qqB1RBQ1/P3Q1R1/6Pn/3r4/1B1k1bNb/2nP2Q1/2q1PNrb/K3n2b b - - 0 1 illegal: No proof kernel
1n4b1/P4P2/1b1KRRn1/QBPN4/Pq2Q1nB/2r1r1N1/1kNr3q/2nQ1q2 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 c5 d4 cxd4 g4 Ra7 gxh5 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 d5+ Kf4 g5+ Kg4 Ke5 h4 b5 a4 b4 c4 d3 f4+ Kd4 a6 e5 h6 b3 h7 d2 h5 e4 a7 b2 h6 e3 Nc3 b1Q Kf3 e2 f6 e1N+ Kg3 g4 f7 Be6 f5 Nd3 f6 Bc5 f8N Qa5 Ra3 Bb6 c5 Ne7 Nge2+ Kc4 Rb3 d4 Nd5 Bg8 Ne6 Qb4 Rh5 Qa1 Re5 Ng6 Bb2 Nc1 Rf3 d3 N6d4 Qa2 Nc2 Kb3 Re6 Qb1 Be5 Qa1 Bf4 Kb2 Bg5 Qa2 Bh4 Qb1 Kf2 g3+ Ke3 g2 Ng3 g1Q+ Rf2 Qh2 Be2 Qa3 Ke4 Qb4+ Kf5 Nd7 Rf1 Re8 Rf3 Nb8 Rf1 Ne7+ Ke5 Ng6+ Kd6 Qa1 Qe1 d1R Rf3 d2 Bb5 Qaa3 Qe4 Qd3 Rf4 Qf1 Rf2 Bf7 Rf3 Rhf8 h8Q Bg8 h7 Re7 Qg7 Ree8 Qc7 Rf7 h8Q Rh7 Bg5 Rh3 Bh4 Re7 Rf4 Re8 Nf5 Rc3 f7 Re7 Ng3 Re8 Qed4 Re7 Rff6 Re8 Re2 Re3 Qe4 Red3 Qh5 Ba5 Qb7 Bb6 Qd4 Re1 Qc8 d1N Ree6 Nf2 Qa6 Ree3 Qa5 Rd2 Qd1 Ng4 Qe4
2brrb2/1r3N1K/1Q1br2Q/1R1B3R/3P3B/1NP1PP2/4qkrr/n1B3Rn b - - 0 1 illegal: No proof kernel
Bb1rr3/k1B5/8/2bPR3/1rr3BR/1RPb1N1P/PnnrN2K/1q1b1Q1Q b - - 0 1 illegal: No proof kernel
3r3R/b2r1qbB/2n1P1R1/Q1r2BnP/KN2b1r1/P7/Q2bk1P1/3NBbQ1 b - - 0 1 illegal: No proof kernel
2k1bq1R/2nPQr1b/PKBR2QN/2r1P3/Q1Nn1R2/n1n1b3/5P1b/4B2n b - - 0 1 illegal: No possible last move, all moves rejected
2K2Rb1/bP1Q1BPP/n5n1/n2NrQBN/1R2QP1k/b1n1q3/1b5r/6Bb b - - 0 1 illegal: No proof kernel
1Qb4b/2P1rQ2/1B2rR2/nQKb1B2/P5P1/k1b1Pq1N/N3rn2/n2rR2N b - - 0 1 illegal: No proof kernel
4n3/2nN1N2/B1bk2n1/1rR3b1/P1n2N1Q/1b1KPBB1/q1P1P1qR/1r1b3Q b - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 e5 b4 c5 dxc5 axb4 Bf4 e4 Bc1 e3 fxe3 Qb6 Bb2 Qc7 Bc1 Qd8 Kd2 Ke7 h4 f5 a4 g5 h6 b5 h5 d5 c6 f4 h7 f3 h6 g4 c7 b3 Nc3 g3 Ra3 d4 Ra2 g2 Nh3 g1N Bb2 f2 Qb1 b4 Qd1 d3 Qe1 Qd5 Qd1 Nf3+ Kc1 d2+ Kb1 Bd7 c8B Ra5 Ra3 Nf6 Ra2 Ne8 Ne4 Bc6 Bd7 Na6 Ra3 Ne5 Rh2 Ng6 Nf6 Qg2 Qe1 d1B Bc8 Rb5 Nd7 Kd6 Kc1 Nac7 Kd2 Be7 Nf4 Bg5 Kd3 Rg8 Bc3 b2 h8N b1B h7 b3 Ba6 b2 Bd4 Ba2 Rc3 b1Q Rc5 Bb3 Nf7+ Ke7 h8Q Qa2 Qh3 Rh8 Be5 Rh4 Nh5 Rhb4 Qh4 Ke6 Bg3 Ke7 Nfe5 Kd6 Nf4 Qf3 Bg2 f1N Bf2 Nd2 Qh1 Nc4 Bg3 Qf2 Bd5 Qg2 Nf7+ Ke7 Nd8 Kd6 Be6 Na3 Bf5 Bbd5 Bg4 Rb1 Bh5 Bb3 Bf3 Nc4 Nf7+
1QK4B/4b3/n5RR/PQ1nNP1q/1N6/1q1qqR2/N1bPrP2/1B1knnr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 e5+ Kc4 b5+ Kb3 Kc5 h4 Kd4 a4 c5 a5 g5 h6 c4+ Ka2 b3+ Kb2 e4 h7 e3 d6 g4 Ka3 b2 Kb4 g3 h5 g2 h6 c3 Qe2 c2 Nc3 b1Q+ Bb2 c1N Rh5 Na6+ Ka3 b4+ Ka4 b3 Kb5 Qh4 Kc6 Bb7+ Kd7 Be4 Qb5 e2 Qb7 Kd3 Nd1 Kc2 Nc3 e1N Nf3 g1Q Ne5 Qgg3 Ra3 Re8 Na2 Ne7 Bd3+ Kd1 Rg5 Qe3 Rg6 Ne2 Qb5 Rg8 h8R Qh5 h7 Ng3 Bc3 Qb2 Bb1 Nd5 Bd4 Re6 Kc8 Nf1 d7 Bc2 d8N Be7 Bc3 Rg7 Bd4 Qbc3+ Ndc6 b2 Rb3 Qc4 Rc3 Qb3 Ncb4 Qeg5 Rf3 Qge3 Rh6 Rg5 Rg8 Rg1 h8Q Qbd3 Rgg6 Qb3 Nc1 Qbd3 Qd8 Qb3 Qd6 Qbd3 Qdb8 Qb3 Ba2 b1Q Bb2 Qbd3 Bd4 Qb2 Bb1 Qbb3 Nca2 Qf4 Ng4 Re2 Bh8 Qfe3 Ne5
QqNbqR1q/nr1N3R/P7/1bn3BQ/1n1Pn1Pq/1B5k/1rP2N2/6BK b - - 0 1 illegal: No proof kernel
2r2Q2/1Bb2KP1/1N6/BNbrP3/Pn1Qb2r/N1n3Rq/krPq4/Q4bR1 b - - 0 1 illegal: No proof kernel
2bb2QK/nP3BQ1/4bBB1/2rn3R/3P1q2/k1N1PbNP/1r3r2/NqRr4 b - - 0 1 illegal: No proof kernel
3r2R1/2Kb4/1QBN2nN/2B1r2q/1q4Q1/PPp1PRP1/1rnN3b/R1qkn3 b - - 0 1 illegal: No proof kernel
nnbb1QRQ/qR3N2/7q/1p2q1Bk/1K2NrP1/3rP1rP/2P1BbQ1/3B4 b - - 0 1 illegal: No possible last move, all moves rejected
r3Q1B1/1R2n3/R2r1pn1/Pr1BB2k/3PqPN1/Kb1Qb3/1n2P3/2q1NqR1 b - - 0 1 legal: proof: g4 d5 b4 h5 gxh5 e5 d3 a5 c3 e4 dxe4 d4 cxd4 axb4 Kd2 g5 Kc2 b5 Kb3 c5 a4 c4+ Kb2 f6 h4 Kf7 h6 Kg6 h7 b3 f3 b4 e5 g4 e6 g3 a5 g2 e7 Bh6 Nd2 Nc6 Nh3 g1Q Rb1 Ne5 Bg2 Kh5 e8B+ Ng6 Bf7 Be6 Nf2 Qc7 Ng4 Ne7 Bg8 Qf1 Rg1 Be3 f4 Rd8 Nf3 Rd6 Ne1 Qc6 Qd3 Qe4 Bf7 Ra8 Bg8 Qf5 Bd5 c3+ Ka1 b2+ Ka2 b3+ Ka3 c2 Bd2 c1N Bb4 Rd7 Bd6 Qe4 Be5 Bf7 Nh6 Rd6 h8R Na2 Rh7 Nb4 Rg7 Be6 Ng4 Bf7 Rc1 b1Q Rc6 b2 Ra6 Qc1 Bc6 Ba2 Bcd5 Nf5 Rb7 b1R+ Ka4 Rb2 Ka3 Nfe7 Nf2 Kh6 h5 Bb3 Ng4+ Kg7 Rg3 Nh4 h6+ Kg6 h7 Bd1 Qc2 Nd3 Rg1 Kh5 Qd2 Rb5+ Ka2 Nb2 Qd3 Ba4 Ka3 Bb3 h8Q+ Kg6 Qg7+ Kh5 Qf7+ Nhg6 Qe8
K2R1b2/5q1k/1rP1QNpn/B2n1P1N/NQq1b1P1/8/B3nP2/RrbQq3 b - - 0 1 legal: proof: e4 b5 d4 c5 h4 cxd4 a4 f5 axb5 g6 exf5 Nf6 h5 Ng8 h6 Qb6 Bd2 Qf6 Bc1 Qg7 hxg7 Bb7 Rh6 Ba6 Rh1 Bc8 Kd2 Kf7 Kd3 e5 Kc4 h5 Kd5 a5 b4 e4 g4 a4 c4 a3 b6 a2 b7 e3 c5 h4 b5 h3 b6 e2 Bf4 e1Q Bd2 h2 Bf4 d3 Na3 d2 Qc2 d1Q+ Qd3 Ra6 Nf3 Nc6 b8Q Qa4 b7 Nh6 g8N Kg7 Nh4 Nd4 Qd6 Kh7 b8Q Ne2 Qb4 Rb6 Bd2 Bb7+ Qc6 d6 Ng2 Qa6 Rg1 h1Q Nb5 Qh2 Rd1 a1B Nf4 Bb2 Nc3 Bc1 Nh5 Qf4 Na4 Qa7 Qbd4 Ba8 Ba5 Rb1 Q4e4 Qf7+ Qe6 Qfb4 Qb7 Qc4+ Kc6 d5 Bg2 d4 Bd5 Qec3 Qc2 Qe1 Rd2 d3 Qd1 Ra1 Kb6 Rb1+ Ka7 Rb6 Kb8 Rb1 Qb4 Bb7 Ra2 d2 Ra1 Bc6 Rg3 Ba8 Rd3 Bb7 Qdb3 d1N Ka7 Ne3 Qd1 Qf4 Ba2 Qc4 Kb8 Be4 Rd8 Nd5 c6 Bc5 Ne7 Re8 Ng8 Bf8 Ka8 Re7 Qb6 Rb7 Qb4 Rb6 Ngf6+
5Q2/1B3qQP/R2BP2K/3bP3/rBnRrp2/qn1rqN1P/Q7/bk1n3N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kd2 Ke7 c4 Ke6 b4 Kf5 e3 Ke4 h6 f5 e6 g5 c5 d5 b6 a5 h7 g4 b5 d3 b7 g3 c6 g2 b6 d4 c7 a4 Na3 Na6 b8Q Nh6 b7 Bg7 Be2 Qf8 Bb2 Nc5 Qb3 Ng4 Nc2 a3 Qa7 a2 b8B Bb7 Ba3 Qf7 Ne1 Ne5 Bb4 Bd5 Nh3 g1Q Nf3 f4 c8Q Rd8 Bd6 Bf6 Rd1 a1Q Qba2 Qf2 Qab7 Ra4 Rhg1 Rd7 Qf8 Rd8 Rgf1 Qg3 Rf2 Nc4+ Ke1 d2+ Kf1 Qh5 Qbg7 d3 Rg2 Nb3 Nf2+ Kf5 h3 Qf7 Nh1 Ke4 Rh2 Qd4 Ra1 d1N Rf2 d2 Rg2 Nca5 Ba6 Nc4 Bb7 Kd3 e4 Qe3 Rh2 Bb2 e5 Kc2 Re2 Qb6 Re4 Qe3 Qa3 Rc8 Ra2 Kb1 Rd4 Qh4 Kg2 Ba1 Rc2 Qhe7 Rc3 Ncb2 Rc6 Rc7 Ra6 Rc4 Rd3 Re4 Rd4 Nc4 Qa2+ Kc1 Ba8 Qa7 Bb7 Qc5 Bc3 Qa3 Bcb4 Qe1 Nh2 Qg1+ Kf3 Qe3+ Kg4 Nc3 Kg5 d1R Ba5 Rd3 Nf3 Nd1 Bc3 Nb6 Kh6 Nc4 Qf2 Kb1 Bcb4 Ncb2 Qe2 Nc4 Qa2+
bK6/3R1RP1/3nbrn1/1N1k3Q/3pN2Q/2b1n1B1/P1P1r1P1/1BqB1Qqr b - - 0 1 illegal: Other
rq1r1R2/1NB2P2/5Q1b/bnKR4/pQNP2R1/2B2B2/1Pk4P/1b1qnq1n b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Kd3 Kd6 Kd4 c5+ Kc4 Ke5 f4+ Ke4 d4 e5 b6 a5 d6 g5 b7 g3 f6 g2 f5 g4 f7 g3 f6 a4 d7 Ne7 Qd2 Bh6 f8R Nf5 f7 Na6 b8Q Nc7 Nh3 g1Q Qdb4 g2 Q4b6 Ng3 Bf4 Nb5 Be2 Qd1 Qf6 g1Q Be3 Qgf1 Rg1 Nh1 Bd2 Qb6 d8B Bf5 Qbd6 Qb8 Bc3 Ke3 Rg6 e4 Rg5 Bh7 Kd5 c4 Bf3 Kd3 Nf4+ Kc2 Kc5 e3 Nd3 e2 Bc7 e1N Rd5 Be4 Nd2 Bf5 B3a5 c3 Nc4 Rg8 Kc6 Bd2 Qb4 Be4 Nc5 Rh8 Rc8 Rd8 Nb7 Kd3 Ra3 Qb3 Qc5 c2 Kb6 c1B Bg4 Rd7 Rf8 Rd8 Bb4 Bh6 Kc6 Bcd2 Qb6 Na7+ Kc5 Bc3 Qa5 Nb5 Bh5 Qd1 Bg4 Kc2 Rb3 Bcd2 Rg3 Kc1 Bf3 Bb1 Rg4 Kc2 Kb6 Bdf4 Bd2 Bd6 Bc3 Bc5+ Kc6 Bb6 Qb4 Ba5 Kc5
K1R5/R3NPq1/2P1NN1q/4q1pQ/PBn1r3/r1bQP3/b3B2k/r1n2B1b b - - 0 1 illegal: No proof kernel
b2R4/N2qPP1B/qbp2q2/1R2R2r/NKQP4/1n5r/QP2kb1B/rnQ5 b - - 0 1 illegal: No possible last move
4r2q/1bNP1P2/2bR1Q1N/2B1q1P1/2B1p3/K1b1P2n/1QqRN2n/k2n2Rr b - - 0 1 legal: proof: g4 b5 c4 g5 a4 f5 axb5 d5 cxd5 fxg4 h4 Bg7 hxg5 Bf8 d4 Kf7 Kd2 a5 Kc2 c5 Kb3 h5 f4 e5 e3 h4 d6 Ke6 d7 Kd5 b6 a4+ Ka3 g3 b4 c4 f5 c3 f6 c2 b7 g2 f7 h3 Be2 h2 Nh3 g1N Ra2 Bg7 b5 Ne7 b6 Nbc6 b8Q Bb7 Bb2 c1Q Qa7 Qc2 Nf2 Nh3 Rg1 h1B Qa6 Rh5 Qf1 Qh8 Qc1 Re8 Ng4 Ke4 d8R Nd5 Rd6 Nc3 d5 Nd1 Bc4 Nd4 Ba1 Nf3 Bd4 Nh2 Qb2 Bc6 b7 Bf6 Kb4 a3 b8N Bf3 Bc5 Bg2 Ra1 a2 Nh6 Bb7 Ka3 Bf3 Bb3 Rh4 Qb6 Kd3 Nc3 Bg7 Rc1 a1Q+ Ba2 Kd2 Na6 Bf6 Nc7 Bh1 Re6 Bg2 d6 Bgc6 d7 e4 Ne2 Kd3 Qb1 Qe5 Bc4+ Kd2 Q1b3 Rh5 Rb1 Rh4 Rb2 Rh5 Nd4 Kc1 Rd6 Rh4 Ra2 Bg7 Qa6 Rh5 Qc3 Kb1 Ne2 Bf6 Rb2+ Ka1 Qd4 Qf5 Qd2 Bc3 Qd4 Qd5 Qf6 Qe5 Qb5 Qb1 Rbd2 Qc2 Qb4 Nf3 Qa5 Nf2 Qb5 Rh1 Rg2 Nh3 Rg1 Nh2 Qb2+
3B1q2/BrP5/R5Kp/2N2N1P/n2R3r/n1kQrnP1/3b1bbP/NQq1B3 b - - 0 1 illegal: No proof kernel
1R2n3/1P3P1P/5bq1/1NnQbBp1/3n1qbB/B2NR3/1NPk2KQ/r1r4r b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 h4 Kf7 f4 Kf6 Kf2 d5 b4 e5 h6 g5 b6 a5 b5 a4 h7 e4 b7 e3+ Kg2 d3 b6 a3 h5 d4 h6 a2 Rh3 e2 Nd2 Bd6 Re3 Be5 Ba3 Nc6 b8B Qd6 Nc4 d2 b7 d3 Nh3 Nd4 Nf2 e1B Qf3 d1Q Nb2 d2 Qd5 Qh5 Nfd3 d1R Be2 Bf2 Bg4 Qg6 Bc7 Be1 Ba5 Bf2 Be1 Rc1 Bh3 Bg1 Bh4 Bf2 Bg4 Be1 Bh3 Bc3 Bg4 Ke7 Bh3 Nf6 Bg4 Ne8 f6+ Kf8 f7 Ke7 f8N Kf6 Bh3 Bg4 Ne6 Kf5 Nc7 Ra6 Rb1 a1N Nb5 Nab3 Ra1 Nc5 Ra2 Rg8 h8Q Ra8 Qh7 Rh8 Qc7 Ba5 Qb8 Bd8 Ra1 Bf6 h7 Rf8 Bb4 Ra2 Ba3 Rh1 Rae1 Ra1 Rb1 Bd8 Qf7+ Qdf6 Rf1 Ng7 Bf2 Bd6 Rf3 Ke4 f5 Bh5 Bh4 Qe5 R3f2 Ke3 Rf3+ Kd2 f6 B8e7 Bd7 Bg4 Qd5 Qef5 Re1 Re8 f7 Bf6 Re6 Bh2 Rd6 Ree1 Re3 Ne8 Rc6 Rec1 Rc8 Bg3 Qf4 Bh2 Rb8 Qe5 Qg3 Qef5 Qh3 Bhe5 Qh2 Qf4 Bf5
3nNqRK/P5Rn/4r2q/Q1bQ3b/N1pRqP2/1PBB4/1r2k2P/1Bn1r3 b - - 0 1 illegal: No proof kernel
q1k1B3/P2P1N1b/2qn1N1r/2P1bp1b/nR4P1/1RB5/2BQ2rR/K2nrQ2 b - - 0 1 illegal: No possible last move, all moves rejected
qk4R1/4nb1K/Br2n3/2N2Pb1/p3PPrR/Q1QnNb1R/n1PQ3n/2B5 b - - 0 1 illegal: No proof kernel
R5R1/6k1/1Pn1R1qn/2bbpB1P/Q2P1rB1/N4nQr/1r2PN2/QnK2n2 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 g5 fxg5 h6 a4 Bg7 axb5 Bf8 g4 Qd7 g6 Kd8 g7 Qe8 b3 Be6 g5 Bh3 g6 Bc8 Bb2 Kd7 Bf6 Qd8 Bh4 Ke8 Bg5 hxg5 h4 f5 d4 a5 Kd2 e5 b6 c5 b7 f4 b4 f3 d6 a4 b5 c4 b6 g4 Bh3 f2 Kc1 f1N Qe1 g3 Qf2 g2 Na3 c3 Nc2 a3 Qf4 a2 Qg5 Be6 Qf4 Nc6 b8Q Nh6 g8B Bd5 Qa7 Qf6 g7 Qg6 Na3 c2 d7+ Ke7 Qg4 Kf6 Bh7 Bc5 g8R Rf8 Qg3 Rf7 Bf5 Rf8 Nh3 g1N Rh2 Nf3 Qa4 Kf7 Bg4 Kf6 Kb2 c1N Nf2 Nb3 d8Q+ Kf7 Qd6 Nbd2 Kc1 Nb1 Qb8 Kf6 Qba8 Rf7 Q8a7 Rf8 Rg2 Rf7 Re8 Kg7 Q7a5 Rf4 Re6 Ra8 Qe1 Ra5 h5 Rb5 Qea5 Rb2 Rg1 Qe8 Bhf5 Qg6 Qa6 Nbd2 Rb1 a1R Q6a5 Raa2 Qc3 Rb3 Qa1 Re3 Rb5 Rb2 Ra5 Nb1 Ra8 N3d2 Qh4 Rh3 Qg3 Nf3 Qh2 Qe8 Qg2 Kf8 Qh2 Nh4 Bf3 Kf7 Rg5 Qg8 B3g4 Nf3 Rgg6 Qh7 Rgg8 Qg6 Rge8 Kg7 Qg3 Ba2 Rh8 Bd5 Rhg8+
4R1RB/b2prnQb/4Bn1P/1Q1N1rq1/8/1P1PP1bK/nBb2b2/4kNQ1 b - - 0 1 legal: proof: g4 e5 f4 exf4 Kf2 b5 Bh3 c5 Bf1 h5 gxh5 b4 Ke1 b3 axb3 c4 Ra4 c3 bxc3 Qb6 Ra1 Qd8 Kf2 Ke7 Kg2 Kf6 h4 Ke5 c4 Kd4 c5 f5 c4 g5 c6 a5 c5 a4 c7 a3 c6 f3+ Kg3 f4+ Kh2 a2 h6 g4 h7 g3+ Kh3 g2 h5 f2 h6 f3 Qc2 Ba6 c8Q Nf6 c7 Nc6 Qg6 Bd3 Qg5 Bd6 Qg8 Bg3 Qf8 Nb4 Qb8 Ra5 c8Q Rf5 Qf7 Bc2 Qcb7 Re8 h8B Re7 Ba3 Qg8 Qb5 Qg5 e3+ Ke4 Be2 f1N Qh5 f2 Bc4 Nh2 Qf7 f1B Qbg8 Nf3 Qfg7 Bfd3 Ne2 g1B Be6 Ne5 Nf4 Kf3 Nd5 Kf2 Bb2 Ke1 Rh2 Nf7 Rg2 Be4 d3 B1f2 Nd2+ Ke2 Rag1 a1B Nf1 Ke1 Ba3 Bd4 Bb2 Bh4 Rg3 Na2 Rg4 Ba7 R1g2 Bf3 Rc4 Bh5 Rc8 Bg6 Re8 Bh7 Qg6 Qf4 Q8g7 Qe5 Qg3 Qf4 Qh2 Qg5 Rg4 Bhg3 Qg1 Bab8 Rc4 Ba7 Rcc8 Qf4 Rg8 Qg5 Rce8
1bQkb3/R1b2BRb/2rr1N2/2nQ1nN1/1P2P2Q/4qP2/3BP2p/n1K1R1r1 b - - 0 1 illegal: No proof kernel
n1nQ2r1/b3N1rb/2RB3n/1P3P2/Bp1q2Pb/1R6/1Pb1rB2/QNkQ2K1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 exf5 b4 Qc2 Qd7 Qd1 Qb5 axb5 Bg7 Be2 Bh6 Bf1 Bf8 g4 Kd7 f4 Kd6 Kf2 Kc5 d6 Kd4 d3 e5 d7 a5 d8B h5 f6 c5 f7 a4 Bb6 e4 Bh3 a3 Nd2 e3+ Kf1 a2 Qe1 e2+ Kg2 Ke3 d4 c4 d5+ Bc5 f8Q c3 d6 c2 d7 Ne7 d8Q Rg8 Ba5 Nd7 Qc7 Ra7 Qh6 Nb6 Kh2 Bf5 Qcd6 Nec8 Qd7 Bh7 Kg2 Na8 Qd1 e1R Ngf3 Re2+ Kg1 Bd4 Qd5 Rag7 Ne5 Ba7 Bg2 h3 Qa6 h4 Rb1 a1N Qd8 Nb3 Bf3 Nd4 Ng6 Nf5 Ne7 Nh6 f5 h2+ Kf1 h3 Bc7 Rf7 Qa1 Rfg7 Bd6 Kd3 Rg1 h1B Rg3 h2 Bd5+ Bf3 Bb3 Ke3 Ba4 h1Q+ Rg1 Qh4 Rg3 Qf6 Kg1 Qd4 Qf1 Rh2 Qc4 Rf2 Qb3+ Ke2 Qd5 Be4 Rb3 Ke1 Qc4 Kd1 Qd3 Ke1 Nf1 Re2+ Be3+ c1B Nd2 Kd1 Bf2 Re3 Qc3 Bc2 Qd3 Re2 Qc4 Bd3 Ne4 Qc5 Nc3+ Kc2 Qd5 Bg5 Rd1 Qc4 Nb1 Bh4 Rd2+ Kc1 Rc2+ Kd1 Qe4 Qd4 Rc6 Bc2 Qd3+ Kc1 Qd1+
Q1Qr2Bn/b1b1N3/Rp2nr2/Qn4NP/1P1Bb3/b1N1qRP1/1P4rk/3K4 b - - 0 1 illegal: No proof kernel
2QB2Bk/bbP3Rp/Rrr1b3/rB1N3q/r1Q1n1P1/P4K2/1Q1PN1n1/1n6 b - - 0 1 illegal: No proof kernel
b2R1b2/1P2R3/1n3PB1/Pr3N2/kBN2B2/2nQp2q/r1bn1Pr1/2QQK2n b - - 0 1 illegal: No proof kernel
2q1k1NN/8/Pq3QQ1/b2B1P1R/nqnQK3/P1r2N2/pq1P1rq1/R3B2b b - - 0 1 illegal: No proof kernel
q2r4/1r1rkBBP/1N3n1N/1Bp1RqRQ/Q1nbQrP1/3r2P1/2b2P2/4K3 b - - 0 1 illegal: No proof kernel
NKB3n1/2Q1r1Pk/1B1BN1R1/1q2Q2b/2qq1rR1/1qb1pqR1/P2P3P/6n1 b - - 0 1 illegal: No proof kernel
nK3nQ1/2R1RPqP/B2Nr3/2Q1PN2/1Nb2np1/br1Rn1P1/2q2B2/4k2n b - - 0 1 illegal: No proof kernel
qRb2Q2/1n2pkBb/1P1QrP2/8/2N3Pb/1PNB2br/1NR1B3/1K1b1n1q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Kd2 a5 c4 d5 Kc2 h5 g4 h4 f4 a4 c5 a3 c6 a2 f6 h3 c7 h2 b3 d3+ Kb2 d2 g6 d4 f5 d3 g7 Ra6 Nf3 Re6 b6 Rh3 Ne5 Nh6 g8B Nd7 Be2 Nc5 Bh7 Nb7 Nc4 Kf7 Nc3 Bg7 Rf1 h1Q Rf2 Qdd5 Rh2 Qa5 Rf2 Qa8 Bg6+ Kf8 f7 Bf6 Rg2 Bh4 Rf2 Bd7 c8N Bg3 N8d6 Bc8 Ndb5 Bh4 Na4 Kg7 Nbc3 Kf8 Qg1 d1B Qh2 d2 Qd6 Bc2 Rg2 d1B Rh2 Kg7 f6+ Kh8 Rg2 Nf5 Bh6 Ne3 Bgd3 Nf1 Rc1 a1B+ Ka2 Re4 f8Q+ Kh7 Rh2 Kg6 Bg7 Bb2 Ra1 Bc1 Rf2 Bf4 Kb2 Bfg3 Kc1 Qa5 Nab2 Qd5 Ra8 Bb1 Qfd8 Kf7 Rb8 Re6 Bf3 Re3 Rc2 Re6 Bfe2 Qa5 Qh8 Qa8 Rd2 Qg1 Bh7 Bd3 Rc2 Qh1 Kb1 Be4 Bf5 Bd5 Bfd3 Be4 Qhd8 Bh7 Qf8#
7Q/1QpB3n/n1R3r1/R2P1PPK/B6n/bnq4n/2qNP1r1/2kN1QBb b - - 0 1 illegal: No proof kernel
3NNRq1/1QpB1nN1/n1b1nBP1/3n1KPR/k2Pr2P/3qbQ2/1R6/3n3r b - - 0 1 illegal: No proof kernel
Q1B1n1n1/P6P/b6q/Bp3QkN/1q1R1n2/1B1P1r2/1brRn1PR/1K2Nn2 b - - 0 1 illegal: No proof kernel
3NB2R/k1N1r3/B5b1/1KR4b/1P1Pb2P/Bp2bQ2/1NnP2Q1/1n1qrrq1 b - - 0 1 illegal: No proof kernel
Bq4Qq/2R1bQb1/K2Q3N/Nnq2P2/pPB1b3/1qBP3n/kr4P1/5R1r b - - 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kd7 b4 Kd6 f4 a5 f5 e5 g6 h5 b6 c5 g7 h4 b7 e3 Kd3 e4+ Kc4 h3 Kb5 c4 Ra4 e2 Bb2 e1B Ba3 e3 Qb3 e2 Rh2 c3 Qa2 c2 Rh1 c1Q Qb2 h2 Nf3 Nh6 g8B Ng4 Be6 Nc6 Qd4 Bg7 Ng5 Na7+ Ka6 Nf2 Bb2 Nh3 Na3 Nb5+ Qa7 Qc5 Bc3 Bh4 d3 e1Q Be2 Qb1 Rf1 h1Q Bf3 Qb3 Nc4+ Kc7 Nf7 Be7 Nh6 Bd7 Bd2 Bc6 Bc3 Qb8 Ra2 Qh2 Rc2 Qh1 Bf7 Kd7 d6 Be4 Be6+ Kc6 d7 Rh7 d8Q Qhh2 Qd4 Qh8 Bg8 Qb8 Nf7 Rh6 Qf6+ Kd5 Qb6 a4 Na5 Rc6 Nh6+ Re6 Bd2 Kd4 Be1 Rc6 Bc4 Rc7 Qe6 Rc8 Qg8 Re8 Rd2 Kc3 Rd1+ Kb2 Rc1 Ka2 Bc3 Qbc7 b8Q Rc8 Qb7 Qb8 Qb6 Rc6 Nf7 Rh6 Qd6 Rh4 Nh6 Rf4 Bh5 Rf2 Bhf7 Rb2 Bfd5 Qbc7 Bc6 Rc8 Ba8 Qb8 Qdb6 Rc6 Qd7 Rg6 Qbd6 Rg3 Qb7 Re3 Qbd5 Re1 Qdf7 Rd1 Rf3 Rg1 Rff1 Rh1 Be1 Qg1 Bcd5 Bgf6 Rc7 Qc5 Bc4 Bg7 Bc3
1n2Q1NN/3R2q1/3r2B1/1P1b1q2/1K3pPb/2r2RqQ/1B2PP2/qQNrkn2 b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 bxc5 gxh4 a4 Bd6 axb5 Bf8 Kd2 Ke7 Kc3 Ke6 g4 h5 c6 d5 c7 f5 Ra4 a5 Re4 a4 Re3 h3 Bg2 h4 Rg3 f4 Qd4 a3 Qa7 a2 Qa3 a1Q+ Kb3 d4 c4 h2 c5 d3 c6 h3 Nd2 Nf6 Qa5 Nd5 Qb6 Qd7 Qa6 Qg7 Bb2 Rh6 Qa2 Ne3 Rf3 Kd5 e6 Nf1 e7 Rd6 e8Q Be6 c8N Be7 c7 Bh4 Qb1 Ra3+ Kb4 Rc3 Ne7+ Kd4 c8Q Ba2 Ng8 Bd5 Nc4 d2 Ne5 d1Q Nf7 Qc2 Nh8 Qf5 Qh5 Qaa7 Qce8 Qae7 Rg3 Qe3 Be4 Qf3 Qh7 Qg2 Re3 Qg3 Bd3 Qc8 Bg6 Qf5 Ka5 Kc4 Nf3 Kb3 Rg1 h1Q Ne1 h2 Nd3 Kc4 Rf3 Kb3 Qa2+ Kc2 Nc1 Kd1 Qb1 Kd2 Kb4 Ke1 Rg2 Qg1 Rd3 h1R Rd4 Qgd3 Rg3 Qd1 Rf3 Qg3 Rc4 Rg1 Rc7 Rh1 Rd7 Qdd4+ Ka5 Qa7+ Kb4 Qa1 Qh6 Ne3 Rf7 Be7 Qh3 Kd2 Qh7 Rd1 Nd3 Nf1 Nc1 Ke1 Qh3 Bh4 Rd7
2r1b1Qb/N1qnb3/1nQ3p1/R1PNRP2/R1P1K1B1/B3PB2/4nk1q/4r1n1 b - - 0 1 illegal: No proof kernel
1N4R1/2r2b1N/1Qqn1P1r/nn2QBK1/1k3B1p/B3Pqn1/4PPrb/RN6 b - - 0 1 illegal: No proof kernel
1B6/1b4rR/1N3P2/1K1bnp1P/B2Nb2q/qP3k2/1n1b1PRB/r1Qn1QR1 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 h5 axb5 c5 g4 cxd4 gxh5 Qb6 e5 Qf6 exf6 Bb7 Be2 Ba6 Bf1 Bc8 Kd2 Kf7 Kd3 Ke6 Kc4 Ke5 h4 Ke4 b3 e5 c3 g5 h6 a5 h5 a4 h7 d3 b6 d5+ Kb5 a3 c4 g4 b7 g3 c5 d2 c6 d4 c7 a2 Rh3 d3 Ba3 g2 Bb2 Bh6 Ne2 g1Q Bc1 Nd7 b8Q Bb7 c8R Qg5 Kb4 Ne7 Rc5 Nd5+ Kb5 Ne3 Rf3 Qh4 Qc8 Rg8 h8B Rg3 Qe1 d1B Bg7 d2 Nd4 Bc2 Rc7 d1B Kb4 Be2 Qd1 Bc4 Bf8 Bcd5 Na3 Ra5 Rb1 a1Q Bd6 Qb2 Nc4 Ra1 Nb6 Qa3+ Kb5 Rg5 Rg3 Kf4 Rg2 Rg3 Bb4 e4 Qd3 Rg8 Bd6+ Ne5 Rh7 Rg7 Bb8 Bg5 Be2 Bh6 Bd2 Bg5 Rbg1 Bb1 Be1 Nd1 Bd2+ e3 Qc1 Bh6 Qdc4 Ke4 Bf1 e2 Bf4 e1N Bh2 N1d3 Be2 N3b2 Bf1 Qa4+ Kc5 Bd2 Qa6 Qa2 Bb5 Bd3 Ba4 Bc2 Nc6 Kf3 Qf1 Bce4 Kb5 Qa3 Nd4#
1NQ1r3/Q1Rq4/1bRRrPPq/3np1nq/5k2/3PN1B1/2bb3P/1b1B1BK1 b - - 0 1 illegal: No proof kernel
qN2BQ1Q/qR2bN2/1P2b3/R1q2qp1/K1P3r1/1P1P3n/4kr1B/2QN2nb b - - 0 1 illegal: No proof kernel
Q2KnBb1/3Qr1P1/B4R1q/PrBr1Q2/N4bqP/1Pn2k2/NRpr4/3n4 b - - 0 1 illegal: No proof kernel
2rr1Q2/3N1P2/r3R3/qb2P2P/1br1nNqR/Pn2b2B/2kBQ2p/3RQK2 b - - 0 1 illegal: No proof kernel
Q2qb3/B3NP1r/P2brPQ1/bn2B2P/4qp1K/1nq1R2R/1Nk1B3/3b1R2 b - - 0 1 illegal: No proof kernel
2rN4/qn1NKpQb/qP4k1/2P1R3/q2Pnn2/Q1bNBn1Q/5PB1/3R1r2 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 h5 a4 d5 axb5 dxe4 g4 Bd7 gxh5 Bc8 Ke2 g5 Ke3 a5 h4 e5 d4 a4 c4 a3 h6 g4 b6 a2 h7 g3 h5 g2 c6 Bf5 c7 Qd7 c8Q+ Ke7 h6 Kf6 Qb3 Qa4 Nf3 g1Q Qd7 Bb4 c5 Bc3 Na3 Nc6 Bg2 Nd8 Nb5 Qf1 Na7 Kg6 Qa3 Nb7 Ne1 Qfa6 Rh5 Rc8 Nd3 Nf6 Nc6 Qa7 Rb1 a1Q Nd8 Re8 h8Q Q7a6 Ke2 e3 Kf3 e2 h7 e4+ Kf4 e1N Be3 Nf3 Rd1 Qa2 Rhh1 Qa7 Rhe1 Q2c4 Qf8 Qca6 h8N+ Kh7 Bc1 e3 Ng6 e2 Be3 Ne4 Nge5 Re7 Qg8+ Kh6 Qh8+ Bh7 Qe6+ Kh5 Nd7 Re8 Qh3+ Kg6 Rd2 Re7 Red1 e1N Re2 Nfg5 Qf8 Ne6+ Ke5 Nf3+ Kd5 Re8 Qh8 Rg8 Qe5 Nh4 Qh8 Nf4+ Ke5 Rg7 Qf8 Rg8 Qg7+ Kh5 Bd2 Bb4 Qh8 Ng5 Kf6 Bc3 Ke7 Rg7 Re6 Ne4 Bf1 Rg1 Bg2 Rf1 Re5+ Kg6 Be3 Nf3 Qg7+
4r2B/r2qP3/B4b1R/K1BrQPNQ/P2N2rn/3Pq3/1p2RR1b/3k1b1n b - - 0 1 illegal: No proof kernel
2b1n2Q/4P1n1/N1qRR2r/2P2bRP/2NB1p2/1nb3q1/nk3P1r/1B1KB1Q1 b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 h5 a4 e5 dxe5 Bb7 axb5 Bc8 g4 hxg4 c4 Ke7 h4 Ke6 e4 a5 b6 g5 c6 d5 b7 f5 c5 g3 c7 f4 Rh3 g4 Qd2 a4 Qe3 d4 Bc4+ Qd5 Nd2 d3 Ngf3 a3 Rh1 g2 Kd1 g1N Ba2 g3 Nb1 d2 Bb2 g2 Bd4 Nh3 Qe1 g1Q Nc3 Rh6 Nb5 Nf6 Bb1 Na6 b8B Qg3 Qg1 a2 h5 Nb4 Ba7 Qc6 Bb6 Ra3 Ba5 Ng5 Rh4 Bg7 Rg4 Nf7 Rg5 Ne8 Bb2 Nfd6 Bd4 Ba6 c8R Nf5 Rd8 Bc8 Rd5 Bf6 Rd7 Nfg7 Rd6+ Ke7 e6 Rd3 Be3 Bc3 Ne5 Kf6 Bd4 Rf3 Nc7 Rd3 Na6 Rf3 Ke2 d1B+ Kf1 Bb3 e7+ Bbe6 Ke2 Re3+ Kd1 Rf3 Rd8 Bf5 Nc4+ Ke6 e5 Re3 Nd6 Kd5 e6 Rf3 Nb7+ Kc4 Nd6+ Kb3 Nc4 Re3 Rd6 Rf3 Bd3 Re3 Rc1 a1N Bb1 Rf3 Rc2 Na2 Re2 Qh4 Bb4 Rh3 Re4 Rh2 Re2 Nf6 e8Q Qg3 Qh8 Nfe8 e7 Bg6 Nd2+ Kb2 Ree6 Nb3 Nc4+ Ka1 Qf8 Bf5 Qf6 Bb2 Be1 Bc3 Ne5 Kb2 Qf8 Rh7 Qh8 Rh6 Nc4+
1N3r2/b1Bqp1PB/QP4K1/Pn2b2Q/1n1R2P1/rb5r/k5B1/1N1Q1qRb b - - 0 1 illegal: No proof kernel
1bn1n2n/b2P4/1rBPPk1K/r1Q5/1nNNR3/1R5b/qBP4p/qQ3RQ1 b - - 0 1 illegal: No proof kernel
1N4n1/2qP3p/Bqb3nb/q1brB3/r3q3/BPPQ2R1/2k1P3/R2NKQQ1 b - - 0 1 illegal: No proof kernel
2BbK3/R1P5/8/B1NP1nP1/n3nkNR/qQrp2Qb/n2Pq1b1/r3R1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
Rr3q1k/2PrPQBn/3nB2r/q6Q/6b1/1Q1N1pP1/3nRP1N/3N1nbK b - - 0 1 illegal: No possible last move, all moves rejected
R5q1/bP3B2/b3K2P/1N2bp2/2P2Bnr/rbP2Q2/2k3QN/RnB2nRq b - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 b5 a4 e5 axb5 exf4 d3 c4 dxc4 Bd6 Ra4 Bc5 Ra1 Bf8 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 h4 Ke4 b4 a5 b6 f5+ Kh3 g5 h6 d5 b5 f3 e3 f2 c3 g4+ Kg3 a4 h7 d4 b7 d3 h5 d2 b6 a3 Bg2+ Kd3 Kf4 f1N Ke5 g3 e4 a2 Nf3 Bd6+ Kd5 Nd7 b8B Nh6 e5 Ra3 e6 Be5 e7 Ng4 e8R Ba6 b7 Ndf6+ Ke6 Ne4 Nh2 Qg5 Qf3+ Kc2 Rd8 d1B Rg1 Ned2 Bc7 Qg7 Ra8 Qg5 Bh1 g2 Bd6 Rf8 h8Q Qg8+ Ke7 Rf6 Qg7 Rg6 h6 Rg5 Bc5 Rh5 Be3 Rh4 Bf4 Ng3 Re1 g1B Kd7 Ba7 Rg1 Qh7 Ke6 Ngf1 Qf2 Qh8 Bc6 Qf8 Be8 Qg8+ Bf7 Kd3 Rf8 Bb3 Qf3+ Kc2 Ra8 Ng3 Rg2 Ra5 Ba3 Nf6 Qgg4 Ra4 Qh3 Ng4 Bb2 Nf1 Qhg3 Nfe3 Na3+ Kd3 Qh3 Nb1 Nb5 Ra3 Qhg3 Nd2 Rd1 a1Q Qh3 Kc2 Rh1 Qg1 Rg3 Qg2 Ra1 Qh1 Rgg1 Nb1 Bc1 Nf1 Qhg2+
1q5b/1PRPr1BR/B1qr2Q1/3p2K1/4NP1n/1QNP2Qb/b1n2b2/k3Bn2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 a4 gxh4 axb5 f5 exf5 Qd7 c5 Qd6 cxd6 Bh6 Rh3 Bg7 Rh1 Bf8 Ke2 Kd7 Ke3 e5 g4 c5 f4 a5 b4 h5 f6 e4 f7 h3 g5 c4 b6 Kc6 b5+ Kc5 g6 Kb4 d7 h2 b7 c3 g7 a4 Ne2 h4 Ra3 h3 Rg1 h1B Rg6 h2 Rh6 c2 Rh3 Rh7 Rc3 a3 Rg3 a2 Rh3 a1B Rh5 Nc6 b8B Nd4 Bh3 Nh6 g8Q Ra6 Qgg1 Rd6 Qge1 Nhf5+ Kf2 Nh4 Kg3 e3 Kg4 Be4 Bg2 h1N Bf1 Ng3 Rc7 Kb3 Nec3 e2 Kg5 Bf5 Ne4 Ka2 Bb2 c1Q Ba7 Nc2 Bg7 Bd4 Nbc3+ Ka1 Bb6 Bf2 Ba5 Ba6 b6 Bc4 b7 Bh3 Bb4 Ba2 Rh6 Bc5 Qf2 e1Q Ba6 Nf1 Qg3 Bf2 d3 Qe3 Qh5 Qa7 Qg6 Qb8 Ba5 Qa3 Rh5 Qa4 Rh6 Qc6 Rh5 Rf6 Bb4 Bd6 f8Q Be5 Qc5 Re6 Qc4 Rd6 Qb3 Bed4 Na4 Bb2 Be1 Bbd4 Nac3 Be5 Bh6 Re7 Bg7 Bed4 Rh7 Be5 Bf8 Bh8 Bg7
q1Q1BNq1/bPrP3N/bp1q4/1B1Qk1Pn/1PR2N2/3R2q1/r2n4/R1K4n b - - 0 1 illegal: No proof kernel
3K1Q2/P1N1Q1rB/1b4bR/3PB1N1/2P2N1P/1n2npRq/Rn2qq1k/4rq2 b - - 0 1 illegal: No proof kernel
k1r4B/Pb2N2n/2PKn1qr/7r/pB4R1/1q1R1P2/1PR1Q1Q1/Nb2r1bB b - - 0 1 illegal: No proof kernel
rQ1r2b1/P2R2Nr/PN2nnNP/qk1B2Q1/Ppr1b3/2q4R/8/b1BKQ3 b - - 0 1 illegal: No possible last move, all moves rejected
bR1qQ2q/P6P/2QR2KB/PR1B4/b2qr3/n3p2n/3rqP1N/3Nb1Qk b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 b4 d5 cxd5 Nf6 bxa5 Ng8 g4 hxg4 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Ke4 b5 h4 c5 d4 e5 a4 c4 h5 c3 a6 g3 d6 g4 d5 c2 h6 b4 a7 g2 a5 g3 h7 b3 d7 b2 d6 Na6 Ra2 Bb7+ Qd5 Nc7 Rh4 Nb5 Qc6 Nh6 Rh1 Na3 Bd3 Nf7 Nf3 g1Q Nfd2 Kg5 f6 Kg4 Ra1 g2 Ra2 Qe1+ Kd5 g1Q Ke6 e4 Nf3 Ng5+ Ke5 Nh3 f7 Qe2 Bc4 Qgd1 Nc3 b1B Bh6 c1Q Rb2 e3 Rb5 Bc2 Bd5 Qa1 Nh2+ Kh4 Ke6 Qd4 Nd1 Ba4 Kf5 Be7 Rg1 Re8 f8R Rc8 Rh8 Ba8 Rg6 Bf8 Rhg8 Re4 Re6 Qh8 Kg6 Bg7 Rge8 Bc3 Rf6 Be1 Rg8 Qc7 d8Q Qd4 Qde8 Qd8 d7 Rc7 Rd6 Rb7 Rc5 Rb2 Rb5 Rd2 Rf8 Ng5 Rg8 Kh3 Rf8 Kg2 Rg8 Q8b6 d8Q Nh3 Qg5+ Kh1 Qf7 Bb7 Rb8 Qbd8 Qfe8 Ba8 Qg1+
2nK1n2/Pq1b1p2/1nQ1BRqP/1Q5N/1r2nPR1/1k4q1/3N1QP1/2rNB1b1 b - - 0 1 illegal: No proof kernel
n1QN1bBQ/Pb1P2q1/k7/8/1q2PP1R/NR2bp1R/2K2nBB/3rrrb1 b - - 0 1 illegal: No proof kernel
5RBr/p4K2/Q1PBQ3/Nn1b1BbR/1k1qR3/rq1bNPPn/3P4/2b1n3 b - - 0 1 illegal: No proof kernel
2b1rbq1/2r1NPQ1/B2kbp2/2R1BnP1/1nPP4/1K1N2RB/2RQ4/b2b1b2 b - - 0 1 illegal: No possible last move, all moves rejected
N1RRN3/2K1b2p/1P3n1N/q2Q1B1Q/1B1P2r1/1Pn1rr1P/r2Q4/kbb1b3 b - - 0 1 legal: proof: g4 b5 a4 f5 axb5 fxg4 d3 d5 c3 d4 cxd4 e5 Nc3 e4 dxe4 Bd6 Nb1 Bf8 Kd2 Ke7 Kc3 Kd6 Kc4 g5 f4 a5 f5 c5 f6 g3 f7 g4 h3 g2 b6 a4 Kb5 c4 e5+ Kd5 e6 g3 e7 a3 e8Q a2 Bd2 c3 Nf3 g1R Ne5 c2 Na3 c1B Nac4 g2 Bb4 Bf5 Qd2 Na6 Ng4 Be7 f8Q Nc5 Qh5 Nf6 Nh6 Na4 Qff7+ Ke4 Kc6 Nc3 Rb1 a1B e3 Qd5+ Kc7 Ra2 Be2 Qa8 Bg4 Rf1 Rh2 g1R Re2 Be6 Bf5+ Kd5 Rg2 Rf3 Rg8 Qa5 Rc8 Rg4 b3 Nd1 Rd8+ Bd6+ Kb7 Rgf4 Na3 Bcb2 Qc3 Rg4 Rc1 Re8 Nb5 Ba3 Qc2 Bc3 Qh2 Bd2 Rcc8 Be1 Qd2 Nc3 Qd7 Bc1 Bg6+ Bf5 Nc7+ Ke4 Na8 Bc5 Kc7 Re5 Qg2 Kd3 e4 Re8 e5 Be4 e6 Bf5 Qg3 Kc2 Qd5 Kb2 e7 Ka1 Qh2 Bb1 Qd2 Rf8 e8N Rh8 Nd6 Re8 Bf5 Ree3 Ne8 Bd6+ Kc6 Be7 Kc7
1k1n3r/Qr2P2P/rN5B/RB1p2P1/1BP1b3/1Q5N/3n1Qn1/bq1nrRK1 b - - 0 1 illegal: No possible last move
3b3n/NPk1n1PQ/1P3K1Q/1rq1N3/RP1BR1bp/4B3/B1b1Rb2/nn5r b - - 0 1 illegal: No possible last move, all moves rejected
b1qQ2kn/6q1/1RBp2Qb/r1RP1P2/NPrPq3/1Nb1R3/1B1b1Q1K/7b b - - 0 1 legal: proof: c4 g5 d4 f5 a4 b5 axb5 f4 h4 gxh4 e3 Na6 exf4 Nb4 f5 Nd5 cxd5 Bh6 Qa4 Bg7 Qd1 Bf8 b4 Kf7 f4 e5 Kf2 c5 g4 h5 Kg2 a5 b6 a4 g5 c4 b7 e4 b8Q a3 f6 a2 f5 d6 Qb7+ Qe7 Qb6 e3 Bd3 h3+ Kg3 h2 Bf1 c3 Qc6 c2 Bb5 e2 Nf3 Bh6 Qd2 e1B+ Qf2 Bb7 Qb6 Bd2 Qd8 Ra5 Nc3 Ba8 Re1 h1B Re3 h4+ Kh2 h3 Bb2 c1Q Na4 Qc8 Rc1 a1B Rc5 Qe4 Bd7 Ne7 Bc6 Re8 g6+ Kg8 g7 Ng6 Rb5 Nh8 f7+ Kh7 f8R Qe7 Ba3 Bac3 Rb6 Qed7 Rf7 Kg8 Bb2 Qdb7 Rc7 Rf8 Be8 Rf7 Rc5 Rc7 Ne1 Rc6 Nc2 Qf7 Na1 Qfd7 Rcb5 Rc4 Rc5 Qe7 Nb3 Qf8 Kg3 h2 Bb5 Bg2 Be8 h1Q Bc6 Qe1 Kh2 Bh1 Qdh4 Qb1 Qd8 Qe4 Qg5 Kf7 Qh5+ Ke7 g8Q Qg7 Qg4 Kf6 Qd8+ Kf7 Qf6+ Kg8 Qgg6 Be1 Qfg5 Bed2 Qd8+
1qbq4/N2P2P1/1N1Q3P/1pn4K/bP1b1R2/1kn1Bnrn/R3Q3/3N1BnB b - - 0 1 illegal: No proof kernel
3q1N2/4pQQP/2rrn2R/n2kP1P1/1N1Bq1r1/q2Br1QK/1PB1R3/b5r1 b - - 0 1 illegal: No proof kernel
rqQ4B/P1r1p2R/rk3NPR/nB1bPrn1/q1Q1Q2K/2B1P1r1/8/N2n4 b - - 0 1 legal: proof: c4 a5 h4 g5 hxg5 d5 cxd5 Nc6 b4 Bg7 e3 Bd4 e4 Be3 fxe3 axb4 Bd3 Nb8 Be2 Ra3 Bf1 Ra8 Kf2 Kd7 Kg3 h5 a4 b5 d4 c5 g6 Kc7 e5 f5 d6+ Kb6 d5 c4 d7 h4+ Kh3 f4 g4 f3 g5 b3 d6 c3 g7 b2 g6 b4 Nd2 b1Q Nb3 c2 Bb5 f2 Nf3 f1R Nfd2 Qa2 Qg4 Bb7 Bb2 c1R Ne4 Bd5 Bc3 Rf5 Nf6 Nc6 Qe4 Nh6 g8Q Ra6 Qe6 Qc7 d8B Nf7 d7 Ng5+ Kg4 h3 a5+ Ka7 Be1 h2 Bh4 Qa4 Ra2 Kb7 Na1 Qb8 Bc7 b3 d8Q b2 Qdc8+ Ka7 Bd6 b1N Bb4 Rd8 Bc3 Rg1+ Kh5 Rg3 Rc2 Rd7 Rf2 Rc7 Rf3 Rb6 a6 Na5 Rf2 Rd6 Rb2 Kb6 a7 Nd2 Ra2 Ndc4 Rc2 Nb2 Rd2 Ba8 Q6c4 Nd1 Rd4 Rdc6 Rd8 Re6 Rh8 Bd5 Rh7 Rd6 Re1 h1R Re2 Rd8 Rh2 Re8 Rh3 Rh2 Rh6 Ra2 Rh2 Ne6+ Bg5 Rh8 Kh4 Rg8 Rh7 Re8 Bh6 Ng5 Bg7 Qa8 Bb2 Nb7 Bc3 Qb4 Kh5 Ra6 Bh8 Na5 Qd8 Qa4 Qd7 Rb8 Qc8 Qb7 Rh4 Ra8 Rh3 Qb8 Rh4 Rgf3 Kg4 Rh3 R4h6 Rg3+ Kh4
1Q1qq1R1/3N1P1k/1nQb1b2/1rq1B2K/p1Q4R/3b4/P2P1PNb/1BbB3r b - - 0 1 legal: proof: g4 b5 e4 g5 c4 d5 exd5 bxc4 h3 f5 gxf5 Nd7 h4 g4 Qe2 Ne5 Qf3 Nf7 Qd1 Ng5 hxg5 Bb7 Rh5 Ba6 Rh1 Bc8 Ke2 Kf7 b4 Kg7 b5 e5 g6 c5 b6 a5 d6 h5 b7 a4 b8Q e4 d7 g3 Qf4 h4 Qg5 g2 Rh2 h3 Qf4 c3 Nf3 g1B Ba3 c4 Qc2 e3 Nh4 Ne7 Kf3 e2 Kg4 e1Q Bd3 Ra5 Ng2 Ba6 Bd6 Rb5 Na3 Nc8 f6+ Kg8 g7 Qee8 Bf5 Nb6 Be5 Bd6 Qf3 Rh6 Qc6 Rh5 Rh1 Bh2 Rag1 Rh7 Qd3 c2 Qe2 c1B Bb1 c3 Nc4 c2 Qd3 Nc8 Nb6 Bb2 Kg5 Rh6 Qdc4+ Kh7 g8B+ Kh8 Qb4 c1B Bb3 Bd4 Qbc4 Rh4 Kf5 Kh7 f7 Rh6 Bd1 Ba1 Nd5 Nb6 Nf6+ Kh8 Ne4+ Kh7 Kg4 Bc3 Bg3 Bg7 Be5 Bf6 Nc5+ Rg6+ Kh5 Bg3 Qe2 Qb8 d8Q Ra5 Bb2 h2 Nh4 Bgf4 Qe6 Bd3 Bg4 Rb5 Bd1 Rg7 Qdc7 Qbd8 Qb8 Rg3 Qb3 Rh3 Qc4 B4e5 Rg8 Bg3 Rf1 h1Q Be5 Qd5 Nd7 Qc5 Re1 Rh2 Re4 Rh1 Reg4 Bh2 Ng2 Qa3 Re4 Qc5 Rh4
R1q5/1P2k2b/3r2n1/Kb3pqP/bBQN3P/RQb1q1B1/1Qn1BP2/N3b3 b - - 0 1 legal: proof: e4 c5 g4 d5 d4 h5 gxh5 b5 a3 a5 a4 Ra7 axb5 Rd7 Nc3 cxd4 Nb1 d3 Bh3 d4 Bf1 Rd5 exd5 Rh6 Nh3 Rh7 Ng1 Rh8 Kd2 g5 b4 e5 c4 g4 h4 a4 b6 g3 b5 a3 c5 g2 b7 a2 b6 e4 d6 e3+ Ke1 e2 Kd2 Na6 b8B Bf5 b7 Nb4 c6 Nc2 d7+ Ke7 c7 Bh7 c8Q f5 Qc7 Bg7 Qc3 Qc8 Nf3 g1Q Rh3 Qg5+ Bf4 Bf6 Na3 Bg7 Bb2 Be5 Qc4 e1B+ Kc1 Bf6 Bc3 d2+ Kb2 d3 Kb3 Be5 Qe2 d1B Ka4 d2 Bg3 Qe3 Qed3 Be2 Nd4 d1B Ka5 Bf6 Qd2 Bg7 Qb3 Bb5 Be2 Bf6 Qd3 Be5 Qdc4 Bf6 Rb1 a1Q Rc1 Qb2 Ra1 Qbc1 Qb2 Qg5 Qcb3 Qce3 Bb4+ Kd8 Qc4 Ne7 Ra2 Ng6 Qcb3 Na1 Nac2 Re8 Ra4 Re6 Ra3 Rd6 Rh1 Ke7 Rf1 Qe6 d8Q+ Kf7 Qg8+ Ke7 Rh1 Qee3 Qgc4 Bg7 Bd3 Bf3 Be2 Bfc6 Rh3 Ba4 Kb6 Bab5 Ra8 Ba4 Ka5 Bcb5 Nf3 Bgc3 Nfd4 Qh8 Bf4 Qg8 Bg3 Qc8 Rh1 Bed2 Na3 Nc2 Ra1 Ne1 Ra2 Qe8 Nac2 Qc8 Na1 Nc2 Ra3 Be1 Qg8 Qh6 Qgd5 Qhg5 Qdc4
3kr2B/Q1Qq3N/P1B1p3/b4RP1/1P3qQ1/2K1P2N/2b1qq2/nrRqr2R b - - 0 1 illegal: No proof kernel
b1n1nBqR/PQR2n1B/1N2K3/1q6/1N1pRPQ1/q1bP4/1b4P1/1k2r1Qn b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 exf5 b5 hxg5 Ra7 c4 Rb7 Rh6 axb4 Rh4 b3 Rh6 b4 Rh1 Rb5 cxb5 Bg7 Ke2 Bh6 Ke1 Bf8 Ke2 Kf7 Ke3 c5 Ke4 d5+ Ke5 h5 a4 b2 f4 d4 f6 Kg6 f7 b3 a5 c4 b6 h4 a6 h3 a7 h2 b7 c3 Nf3 c2 Na3 b1N Bb2 c1Q Ne1 Nh6 Nec2 Nd7+ Kd5 Kf5 b8Q e5 g6 e4 g7 e3 g8Q e2 Qe1 Nc3+ Kc6 Ke4 Nb5 Kd3 Qf2 Na4 Kd5 Ba3 f8R Bb7+ Ke6 Nf6 Nd6 Ba8 Qb4 Nb6 Rf7 Nc8 Rh7 Ne8 Qg1 Nf7 Qg4 Rf8 Bc3 b2 Qb7 b1Q Nc4 Qb5 Bb4 Bb2 Nb6 Qdg5 Rh8 Qg8 Ra4 Qa1 Bc5 Qa3 Rc4 Nf6 Bb4 Rd8 Rc7 Ne8 Bf8 Rd5 Ne3 Rc5 Ned5 Kc2 Nb4+ Kb1 d3 e1B Be2 Rc3 Bf3 Rc1 Be4 Bec3 Bh7 Re1+ Qe3 Rc1 Re1 h1N Qg1 Rd1 Re5 Re1 Re4
1k1qr3/1b1R1Qbr/3r2PP/pP4qQ/P3n3/1K1RQBb1/4q2r/2BN2RN b - - 0 1 legal: proof: g4 b5 d4 h5 c4 e5 dxe5 g5 f3 Nc6 gxh5 bxc4 f4 g4 Qd3 Nd4 Qc2 Ne6 Qd1 Ng5 fxg5 Bb4+ Nd2 Bd6 Nb1 Bf8 Kd2 d5 Kc2 Kd7 e4 a5 a4 c5 b4 Kc7 h4 f5 b5 c3 e6 c4 e7 d4 e8R f4 h6 g3 g6 f3 h5 g2 h7 f2 e5 Bg7 h6 Bb7 e6 Kb8 e7 Nf6 Qe1 Ne4 Nh3 g1B Qd2 Bh2 Bg2 f1Q Bf3 Bg3 Nf2 Qe2 Rh3 Ra7 Nh1 Rf8 h8Q Rg8 Bb2 d3+ Kc1 c2 Qe3 Rf8 Nc3 Rg8 Ba3 d2+ Kb2 d1R Rc1 Rd7 Rg1 Rd6 Ka2 Rf8 Nd1 c3 Kb3 c1Q Bb2 Qcd2 Bc1 c2 Qh7 Rg8 Qg5 Rh8 Qh5 Qg5 Rf8 Rg8 e8Q Rh8 Qg8 Rh7 Rf7 Ra8 Ba3 c1R Rd7 Rc2 Bc1 Qf1 Qef7 Rh2 Qge8 Qe2 Qee6 Raa6 Qee7 Re6 Qc5 Rad6 Qe3 Re8 Rh4 Nc3 Rd4 Ne4 Rd3
5nK1/2b1RN1r/4B1pN/1Pq2b1B/8/brkrNPqb/4QPP1/B2Rq1Q1 b - - 0 1 illegal: No possible last move
1BN4K/b1pP2rR/3q2NQ/Q1r1QqnP/1B5n/1qP4B/1nr1qP2/1Rk5 b - - 0 1 illegal: No possible last move, all moves rejected
r2R3N/rqbPr1p1/rB3rQ1/N1RB2P1/P1Pn2Rn/1N4n1/1K1Qk3/4r3 b - - 0 1 illegal: No proof kernel
Q7/2NBr1Pr/K1n2r2/1RBnn1qr/P1B1nN1k/5pr1/RR3PQP/7b b - - 0 1 illegal: No proof kernel
n2N1bbB/1B1N4/1p2P3/qPQ1P2R/1Q1Kn1P1/6nR/kr1bb3/2QnR2q b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 g5 h4 gxh4 c4 b6 cxd5 Na6 a5 Rb8 Na3 Rb7 Nb1 Nb8 a6 Kd7 axb7 a5 Ra3 Ke7 Ra1 Ke8 Kf2 Kd7 Ke3 c5 g4 f5 d4 h5 b4 a4 e6+ Kd6 b5 h3 Nc3 h4 Nf3 a3 Qd2 f4+ Kd3 c4+ Ke4 h2 e3 a2 Ng1 h3 Be2 f3 Bb2 f2 Bf3 f1B Qc1 Na6 b8Q+ Nc7 Na4 c3 Ne2 c2 Nc5 Qh4 Nf4 Be2 Nd7 Rh6 Qa7 Na8 Qa5 Rh5 Re1 h1N Bc3 h2 Qb4+ Kc7 Rb1 a1Q Rb3 Qa5 Bg2 Rh8 Ke5 Bb7 e4 Nf2 Ba1 h1N Rh3 Nf6 d6+ Kd8 d5 Ng3 Kd4 Nd1 Nd3 Rh5 N3c5 Rf5 Bc3 Rf2 Bb2 Bc6 Nb7+ Ke8 Nd8 Qh5 Qcd2 c1B Qdc3 Bch6 Qcc5 Bd2 Nb8 Qf7 Qc1 Bdh6 Nb7 Qa6 Ke5 Bf1 Ba1 Be7 d7+ Kf8 Bf3 Qa5 d8R+ Kg7 Rh8 Bf8 Bc3 Rb2 d6 Bd2 d7 Be2 d8Q Be8 Nd6 Qb7 Bg2 Bf7 Qc8 Bg8 Nf7 Kg6 Nd8 Kg5 Kd4 Kf4 Nd7 Qc6 R8h5 Qb7 Bf1 Kf3 Ke5 Ke3 Qcc5+ Kd3 Bg2 Qc6 Qa1 Kc2 Bh1 Rb3 Qaa3 Kb1 Qc1+ Ka2 Bg2 Rb2 Bd4 Ne8 Bh1 Qc8 Kd5 Nd6 Bh8 Qc6+ Kd4 Qb7 e5 Qg2 Rf5 Qh2 Bb7 Qh1 Rg5 Nde4 Rgh5
2q1b3/1PRpb3/1N6/k3Nb2/rQ1PrqRB/2B2P2/b1QnP2q/qBK4Q b - - 0 1 illegal: No possible last move, all moves rejected
2R5/K1PQkr2/n2pb2N/Bb2P3/R1PrQBr1/2Qb2b1/2qP2q1/1B4rN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 b4 e5 bxc5 exf4 a3 Na6 a4 b4 Bg2 Nc7 Bf1 Nb5 axb5 Ba6 Na3 Bb7 Nb1 Bc8 Kf2 a5 e4 f5 c4 g5 h4 b3 h6 b2 h7 g4 b6 a4 h5 a3 h6 a2 c6 f3 Ke3 f4+ Kd4 f2 b7 f3 b8B g3 Bd3 f1B Qc2 f2 Na3 b1Q Nh3 g2 Nb5 g1R Nd6+ Ke7 Kc5 Qc7 Nf7 Ra7 Bb2 Qb7 Bf4 Bg2 Bc3 f1B Ba5 Nf6 Nf2 Nd5 e5 Nc7 Qc3 Qc2 Bg6 Rg8 h8Q Bd3 h7 Bh6 Be4 Bg5 Nh6 Bh4 Bf5 Qa8 Kb6 d6 Bg6 Na6 c7 Bg3 Rh2 Be6 Nh1 Qd5 Rh3 Rg7 Qa8 Rf7 Qc6 Ra8 h8Q Rg8 Bh7 Rg4 Ka7 Re1 Bg6 Re4 Qha8 Rd4 Bh7 Qf3 Qe4 Qf2 Qac6 Bf3 Rh5 Qg2 Rg5 Bd1 Rg8 Bf3 Rc8 Bd1 Rb1 a1R Rb4 Bf3 Ra4 Rg1 Qf5 Bfd5 Qe4 Bd7 Bf5 B5e6 Qe1 Qb2 Qd5 Be2 Bb1 Bb5 Qc6 Bd3 Qee4 Qc2 Qd7+
nK1Q1r2/3NN3/1RR2r1k/b2R2Pq/6n1/p1p2Pn1/1NBPbP2/1bBr2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
5B2/nr6/2Q2RpP/qNR1k1nP/1P1bPrB1/2N1rbn1/2KQ1p2/3QN2b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 h4 Kd7 d4 Kd6 Kd2 a5 e4 c5 b4 f5 h6 a4 b6 c4 b7 f3 h5 f4 Ra2 g6 Qc2 f2 Qb3 c3+ Kc2 f3 Bg5 a3 Kc1 c2 Bh3 f1B Qc4 f2 Nc3 Rh7 Nf3 Bg7 Ne1 Nc6 b8N Qa5 Na6 Nf6 Bg4 Bg2 Nc7 Na7 Rh4 Bh1 Qc6+ Ke7 Rb2 a2 N7b5 a1R+ Kd2 c1N d6+ Kf7 d7 Ne2 d8Q Ra3 d5 Ng3 d6 Rb8 d7 Rb7 Kd1 Rh8 Bf4 Rf8 Rc2 Nh7 Bd6 Ng5 Rc1 Bd4 Kc2 Nf5 Rh3 Ke6 Rf3 Rf7 Bc5+ Ke5 Bf8 Ng3 Rf6 Rb3 Qdb6 Ra3 d8Q Be6 Qdd7 Bc4 Qbd8 Be2 Nd5 Bef3 Ndc3 Bc5 Qd2 Bd4 Nd5 Rd3 Ndc3 Re3 Qd1 Bc5 Q8d2 Bd4 Rd6 Rf5 Rf6 Rf4 Na2 Rd7 Kb1 Bb2 Rc3 Re7 Kc2 Rb7 Rc4 Bd4 Nac3 Qa6 Nb1 Qa1 N1c3 Qa5 Rc5+
2R1Q3/B1n5/P3pKn1/1B2PPpQ/1rN3N1/Nrbr3n/1P1R2bR/k4bq1 b - - 0 1 illegal: No proof kernel
bq1Q2R1/bB4p1/2P4r/1k5N/1Bn5/bR2P1pR/1Nr1nPPn/1KQQ3r b - - 0 1 illegal: No proof kernel
Qr5k/1N2NnB1/qq6/1R2Q3/2R2NKp/Pbr1P2p/3nPPnb/5rBB b - - 0 1 illegal: No possible last move, all moves rejected
nN4qb/4B3/r4nB1/6Q1/p5PP/1P1PN1qn/R2p1kNq/K1Bb1rQR b - - 0 1 illegal: No possible last move
r3q3/1kn2b1b/Q1RB1Q2/2rRpqNn/3RPQ2/nB1p1P2/Pb3P2/4K1N1 b - - 0 1 legal: proof: d4 a5 h4 g5 hxg5 f5 b4 c5 dxc5 axb4 Nh3 f4 Ng1 f3 gxf3 Qc7 Na3 Qb6 Nb1 Qd8 c4 e5 e3 b5 g6 d5 c6 h5 c7 Kd7 c5 Kc6 g7 b3 Qd4 b2 Be2 h4 Na3 b1N Nc2 h3 Kd1 b4 Ba3 h2 Bc4 b3 Qd2 d4 Ke1 b2 Bb3 Nf6 g8Q Kb7 Qg5 Be6 c8R Nh5 Rc6 Bf7 Qf6 Qe8 Bb4 Na3 Rd1 b1B Qc1 Na6 e4 Nc7 Rd2 Bg6 Rd3 Bh7 Qcf4 Ra5 Rd6 Rb5 Rd5 Be7 Rc3 d3 Nd4 Ra5 Ne6 Bc2 Rc4 Ra8 Rcd4 Bf8 Ba4 Bb3 Ng5 Bc4 Bb3 Rg8 Rd6 Bf7 R6d5 Rg6 Qe7 Rb6 Qef6 Rb5 c6+ Kc8 Bd6 Rc5 Ne2 Kb8 Rf1 h1Q Ng1 Kc8 Qh6 Qh3 Qhf6 Ne6 c7 Kb7 Qc1 Qf5 c8Q+ Ka7 Qf4 Nc7 Kd2 Kb6 Rc1 Kc6 Qce6 Kb7 Ke1 Rb5 Rc6 Rc5 Qg3 Bh6 N5h3 Bf4 Ng5 Bc1 Qf4 Bb2 Qc8+ Ka7 Qa6+ Kb8 Qc4 Kb7 Qa6+
2bn3b/1BNk1r2/2N1N1q1/PnB1p1RP/KRQ5/1r1pQ1P1/1bq1P3/3R2r1 b - - 0 1 legal: proof: b4 c5 d4 g5 dxc5 a5 Ba3 axb4 Bc1 h5 g3 Qc7 g4 Qg3 gxh5 g4 Bg5 Qd3 Bc1 g3 Bb2 g2 Bc1 Qg3 fxg3 Bh6 Qd2 Bg7 Qd1 Bf8 Kd2 f5 c4 e5 Kc2 b5 Kb3 d5 a4 f4 h4 d4 a5 f3 h6 f2 h5 d3 c6 Ra6 h7 Ra7 c5 Nf6 c7 Ne4 c6 Nc3 Ba3 Bg7 Nf3 g1B Bg2 f1Q Qd2 Bd4 Ng5 Qf5 Qe3 Qg6 Rd1 Rg8 Be4 Bh8 Ne6 Rg7 Ra2 Rb7 Rb2 Rf7 Bg2 Ne4 Nc3 Nd6 Rbb1 Rb6 Nd5 Bb2 Ndf4 Nd7 Nd5 Nc5+ Ka2 Ncb7 Kb3 Nd8 Be4 Bd7 c8Q Rb8 Qa6 Bc8 c7 Kd7 Bh1 Bf6 h8R Rb6 Rg8 Bh8 Rbc1 Rb8 Rc4 Rb6 Ka2 b3+ Kb1 Ba1 Re1 b4 Ng5 b2 Ka2 b1R Ne6 Qe4 Rg5 Bb7 c8N Qg6 Na7 Bc8 Ndc7 Rd1 Kb3 Rb7 Ka4 b3 Rgg4 b2 Rg5 b1Q Bc5 Rb3 Bb7 Bb2 Rb4 Qc2 Qc4 Nb5 Nc6 Rc1 Rd1 Rb1 Rd2 Rg1 Rd1
B3k1qn/B1QrR3/1Q1P1bq1/1Nr3PP/p2R3R/1pP1nN1b/1n5b/KN6 b - - 0 1 illegal: No proof kernel
3nN3/q2bq2Q/n1PrB3/B3PK1R/p2k1QrP/2pPNR2/1Q1b2bR/2r5 b - - 0 1 illegal: No proof kernel
1R2q3/3bN2k/np1N3Q/1q1rP3/1PBr1q1B/rPK2p2/Pn1QQ3/b3R1R1 b - - 0 1 illegal: No proof kernel
Nq1k4/b6R/pb5Q/3Rq2r/N4BBQ/2Pq1PbK/PP5p/1nNnQ1r1 b - - 0 1 illegal: No possible last move
K6R/N5n1/p1P1r1qq/1P5N/2R1Qn1Q/QPB3nB/Nb2bp1P/1k1b2r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 c4 f5+ Kf3 d5 e4 f4 c5 d3 b3 d2 h6 a6 c6 g4+ Kf2 d4 h7 g3+ Kf3 g2 Nc3 d3 Bb2 Ne7 Rc1 Qd6 Nge2 g1Q Ng3 Rg8 h8Q Bg7 Qh4 Nd5 Nh5 Nd7 Na2 Nf8 Rc4 Qg6 Qa1 d1N Bc3 d2 Rg1 N1e3 Bh3+ Nf5 Qb2 Bh8 Qa3 d1B+ Kf2 f3 Rg5 Ke7 e6 Nf4 e5 Ng3 Ke3 f2 Rg4+ Bf6 Rg5 Qh6 Rf5 Rg4 Rg5 Bd7 Rg8 Re8 Rh8 Nf5+ Ke4 Rg1 Nc1 Qg6 Na2 Ng3+ Ke3 Kd8 e7+ Kc7 e6 Kb6 Bb4 Bb2 Bc3 Nd5+ Kd4 Bc8 Rc5 Nf4+ Kc4 Qh6 Kb4 Qd3 Rc4 Qdg6 Ka4 Rd8 e8N Rd6 e7 Bcg4 Kb4 Re6 Nd6 Bge2 e8Q Nd7 Qf8 Nf6 Qe7 Ne8 Qh7 Ng7 Nc8+ Kc7 Na7 Kd6 Ka5+ Kd5 Bb4 Ke5 Kb6 Kd5 Kb7 Ke5 Rc2 Kd4 Rc4+ Kd3 Bc3 Kc2 Kb8 Kb1 Ka8 Qc2 Qe4 Qd3 Qh1 Qdg6 Qe4+
qB2QrB1/2R3P1/3Q2n1/BN2n2p/pq2kN2/1n2P1P1/PR2K1b1/3Qbr1r b - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 e5 c4 exf4 b4 d5 cxd5 Nc6 bxc5 Nb8 d4 Kd7 g3 f5 d6 Ke6 c6 Kd5 c7 a5 d7 b5 e3 f3 g6 a4 g7 b4 Nd2 f2+ Ke2 b3 Ba3 f4 Nb1 b2 Bh3 f1N Be6+ Ke4 d5 Nd2 d6 Nb3 Nh3 Bb7 c8Q Nc6 Rh2 Nge7 Bg8 Ne5 Qb8 Qe8 d8Q N7g6 d7 Bb4 Qbd6 Be1 Rg2 Qf8 Qe8 h6 d8B f3+ Kf1 f2 Ba5 Rb8 Ke2 f1R Nf4 h5 Bc5 Bc6 Na3 b1Q Ba7 Rb6 Qee6 Qa8 Bb8 Bd5 Qed7 Rc6 Qf7 Rc1 Qe8 Bc6 Nb5 Bb7 Bh7 Rf8 Bg8 Qb2+ Q6d2 Qa3 Qd6 Qb4 Rf2 Bc8 Rb1 Bh3 Rb2 Bg2 Rc2 Rh1 Rc7 Bc3 Q1d2 Rcf1 Qd1 Be1 Qc5 Kf5 Qcd6 Nf7 Kd3 Nfe5+ Kc2 Na1+ Kc1 Ke4 Rd2 Kf5 Rb2 Nb3+ Kc2 Nc4 Kd3 Nce5+ Ke2 Ke4 Rc3 Nh4 Rc1 Ng6 Rc7
Q1BN1B2/n3r1P1/1Nb1p3/2qPk3/2P5/3q2Pr/KQpbR2q/nR1n2NB b - - 0 1 illegal: No possible last move
N2R3n/2n3PR/2ppN1n1/1NQ1kq1q/PPB5/K1Pbr3/BQ3r2/1bb3B1 b - - 0 1 illegal: No proof kernel
1B4r1/1N3P2/1r2QRPq/B2R1P1N/q1bp2K1/n1Qp4/BRb1P3/k1q3bn b - - 0 1 illegal: No proof kernel
2B1nkR1/2Q2Pb1/1p1p1rqP/1PR1P1q1/b4r2/q1B1n1BN/3KRQ1n/4N3 b - - 0 1 illegal: No possible last move, all moves rejected
Q3qRQR/r1N2p2/1q1np1P1/P1n2q2/P1kPr1B1/Bn1N1b2/3B4/1Kb4R b - - 0 1 illegal: No proof kernel
1RqkB2Q/4pr2/p2RnqQR/1NbrP3/5n2/N2n3B/PP1K1P1B/1b3r2 b - - 0 1 legal: proof: g4 b5 d4 g5 h4 c5 hxg5 f5 gxf5 Nh6 dxc5 Ng8 c4 bxc4 e4 d5 e5 h5 g6 d4 f6 a6 c6 h4 c7 d3 g7 d2+ Ke2 c3 Qa4+ Nc6 Rh3 d1R Bd2 c2 Rc3 c1N+ Ke3 h3 Qc4 h2 Qe4 h1Q Nf3 Rh7 Na3 Nd3 Bh3 Bf5 c8R Rf1 Rb8 Nd4 Rc6 Ne6 Rd1 Qc8 f7+ Kd8 Nd4 Nf6 g8B Nh5 Ndb5 Nhf4 Bc1 Rg7 Kd2 Qf3 Bh7 Ra7 Bg6 Rd7 Bh5 Bh7 Qg6 Rd5 Rcb6 Rg8 Rc6 Bh6 Rcb6 Re8 f8Q Bg5 Qh8 Rf8 Qgf6 Bh6 Be8 Rf7 Qg6 Qh5 Rc6 Qh4 Kc2 Qf6 Bd2 Nh5 Bf4 Bg5 Bg3 Be3 Bh2 Bc5 Rcb6 Nc1 Rd4 Nd3 Kd2 Nhf4 Qg3 Be4 Qg6 Nc1 Rc6 Bb1 Rcb6 Ncd3 Rc6 Nh5 Rh4 Nhf4 Rh6 Nd4 Rcb6 Nde6 Rd6+
kq6/3PK1Q1/1rrN1BpN/1P1P2q1/5qnp/RR5N/1BR1bb1P/2n1Q2r b - - 0 1 illegal: No possible last move, all moves rejected
1rn5/1BKPRp2/2P1qqbr/PpQ3B1/1BQ2P2/bn6/k1Q4R/Nqn1N3 b - - 0 1 illegal: No possible last move, all moves rejected
QbB4K/1RNprPnP/P3b1P1/B1knp3/2Q1R2q/r5B1/4Nb2/q2R1q2 b - - 0 1 illegal: No proof kernel
1K2R1n1/2Pb1Bn1/2P4b/1Bq1P3/Q1RNN1bq/3rP1p1/kqpRQ3/1r2B3 b - - 0 1 illegal: No proof kernel
N7/1kPRBPb1/1RN1rQ2/1p2Bq2/b1Qn1pQq/3r4/PnB1rP2/n5K1 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 gxh5 f5 dxc5 f4 Ba6 Qb6 Be2 Qe6 Bf1 Qf5 exf5 Ra3 Bh3 Ra4 Bf1 Ra8 c4 Kd8 h4 Kc7 c6 g5 h6 d5 h5 e5 f6 d4 c5 g4 f7 d3 h7 b3 h6 b2 Nc3 b1Q Ba3 e4 Rh4 g3 Rh3 d2+ Ke2 g2 Na4 e3 Nb6 Nd7 Nf3 g1Q Ne5 Ra6 Na8+ Kb8 Rf3 Qh1 c7+ Ka7 c6 Bg7 Bb4 Qf5 Be7 Qh4 Qa4 d1R Qc4 Rd3 Rd1 Nb6 Bg2 Na4 Kf1 b5 Kg1 Be6 c8Q e2 c7 e1N Rh3 Nb2 Be4 Rc6 Qd7 Rb6 Nc6+ Kb7 Rg3 Nc2 Rg6 Na1 Rd2 Re3 Bc2 Re2 Rf6 Bd5 Qe6 Bf3 Rd7 Ra6 Rg6 Ra3 Qf6 Rd3 Qg5 Re6 Qg4 Bd1 Rf6 Re2 Rfd6 Nf6 Re6 Re8 h8Q Ne4 h7 Nc5 Rf6 Ne6 Rg6 Bh6 Qf6 Nd4 h8B Re6 Qfg5 Re2 Be5 Bg7 Rgd6 Rh8 Qf6 Rh6 Na7 Rg6 Ra6 Rh6 Nc6 Rg6 Bb1 Ba4 Bc2 Rh6 Qfg5 Rd6 Qf6 Re6 Rb6+
1B2N1qb/2p2Q2/1bR1N1P1/n2R1PP1/1r6/q1pQ1QK1/P1B1Nn2/1qrbk3 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 c4 dxc4 h4 Qd7 hxg5 Qd8 d4 Kf7 g4 b5 f4 h5 Kf2 e5 f6 Kg6 f7 h4 a6 h3 d5 h2 a7 b4 d6 b3 d7 c3 Bb2 e4 Qd5 e3+ Kg2 e2 Qf3 e1B Qh3 Bf2 Na3 Bb6 Nc4 Nh6 Nd6 Nc6 Ne8 Na5 Kg3 Bg7 f8Q Rb8 Ba3 b2 a8Q b1Q Ne2 Bf6 Rg1 h1Q Bc5 Qb3 Re1 Qa3 Rd1 Qe4 Be3 Qb1 Qf3 Rh7 Rd4 Bh8 Rd5 Ba6 Rg2 Bb5 Bf2 Ba4 Rh2 Qc8 d8N Bd1 Bd4 Qe6 Be3 Qg8 Ne6 Nf7 Bg2 Ne5 Bg1 Nd3 Bc5 Rh4 f5+ Kh7 Qf6 Nf2 g6+ Kh6 Qf7 Rh5 Qd3 Rh4 g5+ Kh5 Be4 Rb7 Qf1 Rb8 Rg2 Rh1 Rd6 Rb7 Rc6 Rb8 Qe3 Rb7 Bc2 Rb8 Qd3 Rg1 Kf4 Kh4 Rg3 Rh1 Qg2 Re1 Qgf3 Ba7 N6g7 Nh1 Qfe3 Rb4+ Qde4 Rg1 Ne6 Re1 N2d4 Bf3 Rg1 Be2 Q4f3 Rc1 Rg2 Bd1 Rd2 Rb8 Ne2 Rb4+ Bd4 Bc5 Ng3 Kh3 Ne2+ Kh2 Qee4 Nf2 Be3 Ba7 Rd5 Bad4 Qd3 Bc5+ N2d4 Kg1 Kg3 Ba7 Ne2+ Kf1 Bb6 Ke1 Bd4 Bc5 Be3 Bf8 Bb6 Bc5 Ba7 Bb6 Bb8
1B1nR2R/r1prqpBN/Pb1b4/2k1P1q1/1Q2P1Q1/1Q1B1P2/n3n1KN/1b6 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 Bd6 cxb5 Bf8 b4 axb4 h4 d5 a4 Kd7 h6 g5 f3 g4 Kf2 d4 h5 b3 b6 Kc6 a5 b2 b7 g3+ Kg2 d3 h7 d2 h6 Bf5 Qb3 d1N Nh3 Na6 b8B Nc3 Nd2 b1Q Ng5 Nb4 a6 Qe4 Rb1 Nba2 e3 Qc4 Bd3 Ra7 Nf1 Qc5 Nh2 Ne7 Qb4 Rg8 h8Q Ne2 h7 Rg6 Qg8 Rd6 h8Q Rd7 Qb3 Qa3 Qf6+ Kc5 Nh7 Nc6 Qh4 Bd6 Qgg4 Qe7 Bd2 Nd8 Rbg1 Qc1 e4 Be6 Bh6 Qcg5 Bg7 Bc4 Qh6 Bb5 Qhe6 Ba4 Qb7 Bc2 Qeb3 Bb1 Q7b4+ Kc6 Kh3 g2 Rd1 g1B Kg2 Qh6 Nf1 Bd4 Rh4 Qf4 Nh2 Qfg5 Rh6 Bb6 Re6 Qf8 Re8 Qfe7 Rh1 Qe6 Nf1 Nac3 Nf8 Na2 Rh8 Qef6 Nh7 Qe7 Qe1 Kc5 Nh2 Qe6 Qd2 Qee7 Qdb4+
2nq2b1/P2Pk2P/2r1NnpP/1K1N1qR1/Q1n5/4QBB1/5pR1/N2bb1Rr b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 a4 b5 h4 c5 e4 f5 Ke2 c4 d4 f4 e6 c3 Kd3 g6 a5 b3 e7 f3 h6 b2 h7 b4 Kc4 f2 h5 b3 a6 c2 e5 Bh6 a7 Be6 Bf4 c1N Kb5 Kf7 e8R Bg7 h6 Ne7 d6 Bf5 d5 Rf8 e6+ Kf6 d7 Bc2 d6 Nd3 Bg2 Nc8 e7 Ne5 Nd2 b1B Bf3 b2 Nh3 Ba2 Rh2 b1Q+ Nb3 Nc4 Rg2 Kf7 Bh2 Bc3 Nf4 Be1 Bg3 Rg8 Qe2 Bd1 Nd5 Qf5 Rb1 Rh8 Na1 Rf8 Qc2 Ke6 Qb3 Rf6 Qa4 Kf7 Rc1 Re6 Rb1 Re4 Rc1 Rh4 Rb1 Rh1 Rc1 Nc6 Rf8+ Ke6 e8Q+ N6e7 Rb1 Qe4 Rf4 Qf5 Rg4 Bab3 Rg5 Ba2 Qh8 Ng8 Qd4 Nf6 Qb6 Rb8 Rc1 Rb7 Rb1 Rc7 Qe3+ Kf7 Rc1 Rc6 Rb1 Qe7 d8N+ Ke8 Ne6 Qd8 Rc1 Ne5 Rc5 Nc4 d7+ Kf7 Rg1 Bab3 Be5 Ba2 R5g2 Bab3 Bg3 Ba2 Nc3 Ke7 Re5 Bab3 Nd5+ Kd6 Re4+ Qf4 Nec7 Nd2 Nc3 Bg8 Re5 Nc4 Ne6 Ke7 Rg5 Qf5+ Nd5+
k5bb/PNnpQPP1/B6q/2Bp1Q1Q/6qR/1nr5/4PqrR/2R2NbK b - - 0 1 illegal: No proof kernel
k2R1N2/P1pQR1Kb/1B2B2Q/5rPB/q1p2n1b/n1n3bP/1P6/Q2N2qr b - - 0 1 illegal: No possible last move, all moves rejected
b1q5/PQpRNr2/1n1Nr1B1/1P2rp1K/B3qQQ1/1nR1N2P/b4P2/2b1k3 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 h5 cxb5 Nf6 g4 Ng8 gxh5 a5 b4 Ke7 b6 Qe8 b5 Qd8 Bd2 Ke8 Bb4 axb4 a4 Ke7 e4 Ke6 Ke2 g5 Kf3 d5 Kg4 d4 h6 f5+ Kh5 d3 h7 b3 h3 g4 a5 g3 a6 b2 b7 g2 a7 d2 Nc3 b1B Ra3 Bh6 Nd5 Na6 b8Q Nc5 Nf3 g1R Ne1 Ba2 Ne7 Bb7 Nc2 Rg7 Be2 Rf7 Rc3 Nb3 Ne3 Qc8 Qc1 Bc6 Qb7 d1Q Bf3 Qe1 Bd1 Bg5 Rg1 Bf4 Rg7 Qh1 Bc2 Bh6 Qg1 Bg5 Qg4 Nf6+ Kg6 Nd7 Kh5 Rg8 h8Q Re8 Bd1 Nb6 Qh6+ Kd7 e6+ Kd6 Rh7 Ke5 Rg7 Kd4 e5+ Qe4 Rh7 Bf6 Qhf4 Bg5 Rg7 Na5 Ba4 Nb3 N7d5 Rb8 e7 Bh6 e6 Ra8 Rc2 Kd3 Rc3+ Kd2 Rh7 Ke1 Rg7 Rd8 e8N Rd6 e7 Re6 Nd6 Rb8 e8B Re5 Qa6 Ba8 Qb7 Re6 Ne7 Bg5 Qe5 Bh6 Nf1 Bc1 Qef4 Re5 Ne3 Nd5 Qc6 Rb6 Qb7 Rc6 Rh7 Nb6 Rg7 Rf6 Bg6 Rf7 Ndc4 Rce6 Nd6 Qf3 Rg8 Qd5 Rd8 Qe4 Rd7
RB2K3/r1b3k1/3PQ2r/1Q2n1nP/r1P2r1p/2rR1R2/p3BP2/qNQ3Nb b - - 0 1 illegal: No proof kernel
1Q5R/nrBR4/1bnPQP2/RBr2pq1/6k1/BPp5/3P2Nn/K1N2nnb b - - 0 1 illegal: No proof kernel
Qbr4Q/2Q2Prr/3rPP2/1BNp3n/3pRPbK/2k5/1r1B1NR1/nq4N1 b - - 0 1 illegal: No proof kernel
5KBn/Q1r1P1p1/n1RP1P1b/1b3q2/1R1Qk3/B1nNrn1n/N2P1R1p/Q7 b - - 0 1 illegal: No possible last move, all moves rejected
2Q1n2B/2b1PP1b/Pr1Bq3/2r1p2R/krB1r1R1/3nP3/R2KpN2/r1Q2N2 b - - 0 1 illegal: No proof kernel
KR2rrrN/1rP1R2B/P1n1nR2/2r5/PQ1p2b1/Qq6/1PQpk2B/4b2N b - - 0 1 illegal: No proof kernel
1q3QNb/Rk6/b5Bn/1PK1PBP1/p1nQPN2/Qr4b1/p1R1r2B/r1b5 b - - 0 1 illegal: No proof kernel
b1Qr1R1k/1rb5/3r3p/1Pb4P/K1Q1nR1B/nNN3b1/PP2pR2/B1B2q2 b - - 0 1 illegal: Other
1n1R4/1kN2qBB/1R3PPK/4R1QQ/p3rQP1/1n4nb/3N1Pbp/b4rb1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kf3 h5 Kf4 e5+ Ke4 d5+ Kf3 Kd7 b4 Kc7 c4 d3 f6 e4+ Kf4 d4 b6+ Kb7 g3 e3 c5 d2 g6 a4 Kg5 e2 b5 e1B Nc3 h4 Rb1 h3 Bc4 d3 Nd5 Qc7 Nf3 Qf7 Nc7 Bd6 Qe2 d1N Nd2 Ra7 Qh5 Ne7 Rg1 Re8 Kh6 Nec6 Qg5 Re4 g4 Nc3 Rg3 Nd4 Re3 Bh2 Ba3 Bf5 Bb4 Nce2 c6+ Kc8 Rb2 Rb7 Bf8 Ng3 Bg7 Bg1 Rb4 h2 Re2 Re8 Re5 Be4 Rb3 Bg2 Qh5 Qd7 Bg8 Bh3 Bh7 Qf7 Rb1 Nb3 Rd1 Rd8 Rb1 Rd4 Rb2 Re4 Qg5 Ra7 b7+ Kd8 b6 Ra6 Nf1 d2 Rb1 d1B Nd2 Bf3 Rd1 Ra8 Rb1 Na6 Qh5 Rc8 b8R Bfg2 b7 Nbc5 Rb6 Nb3 Nc4 Bc3 Nd2 Ba1 Ra8 Re1 b8Q Rd1 Nd5 Rf1 c7+ Kd7 Qg5 Re8 Qh5 Re7 Qg5 Re6 Qh8 Rc6 c8Q+ Kd6 Qf4 Nb8 Qcf5 Kc5 Q5g5 Re6 Rf5 Re4 Re5 Nd7 Rd8 Nb8 Rb5+ Kc6 Nc7 Rb1 Rbd5 Rbe1 R5d6+ Kb7 Rb6+ Ka7 Bg8 Nf5+ Kh5 Rf1 Qhh6 Rb4 Bh7 Re4 Qh4 Ng3+ Kg5 Rfe1 Q6h5 Rc1 Kh6 Rf1 Rc6 Kb7 Qh4g5 Rc1 Rcd6 Rf1 Rb6+
Qb1r1b2/1NN2Rr1/2K2pqn/4B1Pn/BR6/1P2R3/b1PnPbQp/1N3k2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 bxa4 d4 Qf6 dxc5 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 Kb5 Kg4 e6 Kg3 g6 Kf2 g4 d5 g5 h5 g7 a5 c6 h4 e7 a3 e8N h3 c7 d4 Bf4 a2 Nf6 h2 Qd2 d3 Nd7 a4 Qc1 a3 Nf6 d2 Nf3 d1N Nd7 Nc3+ Kb6 Ne4 Bh3 Nd2 Nc5 Nh6 g8R Be6 Be5 Qe8 c8Q Nd7+ Kc6 Rh7 Nb7 Rg7 Nd4 Bb3 Rh8 Nf6+ Bd7 Nh5 Nb5 f6 Rh7 Qg6 Nc7 Bg8 Qe8 Rd8 Rg1 Be6 Rg3 Bg8 Qh1 Bb3 Nc3 Bf7 Rb1 a1B Re3 Ba2 b3 Bb2 Rg1 Ba1 Nb1 Bd4 Qe4 Bdc5 Rg4 Kf1 Qd5 Ba7 Rb4 Bb8 Nc3 Bb1 Qe4 a2 Qg4 a1B Qh3+ Ke1 Qg2 Ba2 Nb1 Bd4 Qd5 Rg8 Rf7 Rg7 Qg2 Bdc5 Rg3 Bf2 Re3 Rg8 Kb6 Rg7 Ba4 Rd3 Qc8 Rd5 Kc6 Rd8 Qgg4 Kf1 Qg3 Ba7 Qa8 Bb8 Qg2+
n2b2R1/1K2k1qB/2np2P1/P3B2b/2n2QQ1/Nn2NPQ1/3rpP1R/5rBr b - - 0 1 illegal: No proof kernel
R2bK2n/1q4pb/2R1nrBb/7P/1krp1N2/P3P3/1n1PNB1Q/1B2QR1b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 b5 c4 e5 fxe5 Nf6 cxb5 Ng8 b4 axb4 Kf2 Ke7 Ke3 c5 Ke4 f5+ Kd5 f4 h4 b3 e6 b2 b6 c4 h6 f3 h5 f2 b7 c3 h7 c2 Nh3 Nc6 b8Q Ra6 Qb3 Nd4 Qa4 Nh6 Ng5 Bb7+ Kc5 d5 Qe1 Qd7 Rh3 Nf7 Nc3 b1B Bg2 f1N Ba3 c1B Be4 Ne3 Rh1 Bb2 Nh3 Nd1 Nf4 Bc6 Rf1 Qb7 e3 Rg8 Nce2 Nh8 Qa5 Bd3 Rc1 Ba1 Rc2 Nb2 Bf5 Be4 Rc1 Bh1 Bb1 Be8 Rc2 Bg6 Qc7+ Ke8+ e7 Nc4 Ng2 Nf7 h8R Bh7 Qcg3 Kd7 Rf2 Rf6 Bb4 Bc3 Rf1 Nb2 Ba3 Ba5 Qh2 Bc7 Bb4 Bf4 Ba5 Bg5 Bc7 Bh6 Bd6 Ke6 e8B Be7 Rc1 Ng5 Beg6 Nf7 Rc4 Re8 Rg8 Nh8 Rf8 Rd8 Rc2 Rd7 Ra8 Bd8 Bg3 Re7 Rc3 Kd7 Ngf4 Re4 Bf2 Kc7 Rb3 Kd7 Rb6 Ne6+ Kb5 Rc4 Qg3 d4 Qh2 Qe4 Rba6 Rc7 Kb6 Rc6+ Kb7 Kd6 Kb8 Kc5 Kb7 Rd6+ Kc8 Rc6+ Kd7 Kb4 Ke8 Rc4 Rd6 Qb7 Rb6+ Kc5 Rc6+ Kb4 a3+
kr6/1b3P2/2p2p1R/1r1QN3/nQPB2nB/n2B3b/RQ2qP1P/n2N1b1K b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 c6 b4 axb4 d5 g6 d6 Bh6 Nh3 Bg5 Ng1 Be3 Na3 f6 Nb1 Bb6 e4 Bc7 dxc7 d5 e5 Kd7 e6+ Kd6 Qf3 Qe8 Qd1 Qf7 exf7 Kd7 a4 b5 c4 e5 h6 g5 h7 e4 a5 e3 a6 g4 a7 b3 Ba3 b4 Qc2 g3 Qc3 b2 Nh3 b3 Bg2 e2 Rf1 d4 Bc5 d3 Rg1 Bb7 Be3 Kc8 Bd5 g2 Be6+ Nd7 Bd4 Rb8 a8Q Nh6 Qaa5 Ng4 Ra2 Re8 Bf5 Re5 h8B Rb5 Be4 Nc5 Qcb4 Na4 Nc3 b1B Ng5 b2 Nf3 Bc2 Bh7 b1N Bg7 Na3 Ne5 Bb1 Nd1 Bc2 Rf1 g1Q Bh6 Qh1 Rg1 Qe4 Bg5 Qf3 Kd2 e1N Bh4 Bb1 Qb2 Nec2 Qab4 Na1 Ke1 d2+ Kf1 Qe2+ Kg2 Bf5 Kh1 Bd7 Bd3 Be6 Ne3 d1B Rg3 Bc2 Nd1 Bd7 Rh3 Be6 Bh7 Bd3 Bf5 Qc2 Bh7 Bf1 Bd3 Qe2 Q4c3 Ba6 Qcb4 Kb7 c8Q+ Ka8 Qd8 Bb7 Qd5 Ne3 Rg3 Beh3 Rg6 Ng4 Rh6
3NN1K1/1Br2p1P/Q3b1Pq/nn1p2P1/Q5B1/3P1nk1/1R1b2Q1/Rn1Rrr2 b - - 0 1 illegal: No proof kernel
Q1n5/1r1BpNrP/b1NB4/Rr1q1p2/1QnR1nNK/P1QP4/bn2P3/1k6 b - - 0 1 legal: proof: g4 a5 c4 h5 b4 d5 cxd5 axb4 gxh5 g5 f4 g4 Kf2 Bh6 Ke1 Bg5 fxg5 Rh7 Nc3 Rh6 Nb1 Rh8 Kf2 Kd7 Kg3 Kd6 h4 Kc5 a3 Kd4 d6 b5 h6 f5 g6 c5 h7 b3 g7 b2 d7 b4 h5 c4 h6 b3 Rh3 c3 Rh5 c2 Ra2 Nc6 Kh4 g3 Qe1 g2 Nc3 b1N Nd1 b2 Nf2 Nf6 g8Q Ra5 Ngh3 g1R Ng5 Rb5 Ng4 Ba6 Bg2 Na7 Bc6 Nd5 Nf7 Nc8 Ra1 Qa5 d8N Nf4 Bd7 Rb7 Ra2 Qd5 Nc6+ Kc4 Rg5 Kb3 Rg6 Rg3 Qe8 Rg8 h8Q Rg7 h7 Rc3 Re6 Rc5 Qef8 Rcb5 Re5 Nc3 d3 b1B Re4 Nd1 Rd4 Nb2 Ra1 Ba2 Rb1 Nh3 Bg5 c1N Bf4 Kc2 Bd6 Nf4 Qb4 Nb3 Qfg8 Na5 Qe8 Nb6 Qa8 Nac4 Qhc8 N2a4 Rb3 Nab2 Qc7 Kb1 Rc3 Ne3 Rc5 Nc8 Qca5 Nc4 Qc3 Rb8 Qab4 R5b7 Ra5 Rb5 Ra4 R8b7 Ra5
b1qNR3/1R2p1PP/2pn2bb/K1N3rP/N1PQB3/n2r4/Q1BR4/b3nk2 b - - 0 1 illegal: No proof kernel
Kb1Nnn2/P2b4/1Rp1PB1R/Pb1k4/1Q2Npqb/B1Rn4/1r1P2r1/1BQ5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 b4 Nh6 bxa5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 g5 h4 b5 a4 f3 h6 f2 h7 f6 h5 g4 h6 g3 a6 b4 a5 g2 a7 b3 Ra3 b2 Nf3 g1B Rc3 Qd7 Ng5 Qh3 Ne6 Qh5 Nd8 Bd7 e3 Qh3 Bd3 f1B Kd4 Bh2 e4 c6 e5+ Kc7 e6 Kd6 Kc4 f5 Qg4 Ke5 d6 Be7 Kc5 Nf6 Kb6 Ne8 Kb7 Rg8 h8R Kd5 h7 Bh4 Qb4 Rg2 Rf8 Be5 h8Q f4 Rf6 Qf5 Rh6 Qg4 Bh7 Bb5 Qf8 Qh3 Qf5 Qg4 Qc2 Na6 Re1 Rc8 Re4 Nb8 Ka8 Rc7 Rec4 Rb7 Rb3 Rb6 Rcc3 Rb7 Na3 b1N Nc4 Rb6 Ba3 Rb7 Qc1 Rb6 Rg3 Nc3 Bb1 Nd1 Rgc3 Nf2 Rb2 Nd3 Rbb3 Bc8 d7 Rb7 Nd6 Rb6 N8f7 Rb7 d8B Nd7 Rb2 Nf8 Bf6 Bd7 Ne4 Bd6 Nd8 Bb8 Qe7 Ba6 Rb6 Bc4 Ra6 Rb2 Rb6 Bb5 Qb4
B1bn1N1b/P3Np2/P2n1qBR/b2Pr2B/krQpr3/5PKN/R1r5/3Q4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 h4 Ra8 hxg5 e5 d4 Bh3 d6 Nh6 d5 Bc8 Be3 Ng8 Bd4 exd4 g4 Kd7 a4 b5 e4 c5 e5 h5 e6+ Ke8 g6 h4 g5 h3 e7 Kd7 a6 c4 g7 c3 a7 c2 a5 c1B g6 h2 a6 b4 Na3 b3 Rb1 b2 Nb5 Bh6 Nc7 Bg5 Be2 Bf6 Ne6 Nc6 Nh3 Nh6 g8B Nf5 g7 Rh4 Bh7 Re4 g8N Bh8 Bg6 Bh6 Kf1 Bd2 Kg2 Ba5 Beh5 Rb8 f3 Rb4 Kf2 Qb6 Kg2 Nd8 Kf2 Ng7 Kg3 Ne8 Ra1 b1R Ra2 Rc1 Rb2 Bb7 Nf8+ Kc8 d7+ Kc7 Bh7 Bc8 B7g6 Nd6 e8B Rc2 Ne7 Qc6 Ng8 Kb6 Ne7 Ne6 d8Q+ Kb5 Qb6+ Ka4 Qc5 Nd8 Qc4 Re5 Rg1 h1R Rf1 Rh2 Rh1 Rhe2 Bd7 Qb5 Bc6 R2e4 Ba8 Qb6 Nf2 Qb5 Bg4 Ne8 Rh6 Qc6 Nh3 Qf6 B4h5 Nd6 Ra2#
Q1q4Q/2Br1b1q/5K1Q/2P1n1R1/r3B3/RpN2P1p/NPn2b1P/Rb2bk2 b - - 0 1 legal: proof: d4 e5 dxe5 c5 g4 f5 gxf5 c4 a4 c3 Nxc3 b5 Nb1 Qb6 a5 Qxa5+ Qd2 Qb6 Qd1 Qd8 Kd2 Kf7 Kc3 d5 Kd4 g5 c4 h5 e4 a5 e6+ Kf6 f3 h4 e7 h3 e8R a4 Re7 b4 Qe1 g4 Re5 b3 Qg3 a3 Be2 a2 Re8 Nc6+ Kd3 d4 Qd6+ Be6 Na3 g3 Rb1 a1Q Nb5 g2 Bf4 Rh7 Nc3 Qa7 Ra1 Qc8 Ra3 Rd7 Na2 Nh6 c5 Bg7 Qb8 Nf7 Bc7 Kg5 e5 Nb4+ Ke4 d3 f6 d2 Bd3 d1B Ne2 g1B Rg8 Nc2 Nec3 Bf2 Re1 Bc4 e6 Ne5 e7 Bf7 e8Q Be2 Ra1 Bf1 Bd6 Qac7 Qe6 Ra4+ Kd5 Kf4 Be4 Ke3 Qa8 Bh6 Rg4 Bd3 Rg5 Bh5 f7 Kd2 f8Q Bf7 Nb5 Ke2 Qh8 Be1 Nbc3+ Kf1 Rg4 Be3 Rg5 Bg6 Qef6 Bf2 Ke6 Be8 Qfh6 Bf7+ Kf6 Q7b7 Bf5 Qe4 Bc7 Qh4 Qg6 Qh7 Qh5 Nb4 Be4 Bb1 Qh4 Nc2 Qh6
BQBqrB1Q/K4k2/2R1pRn1/pP1q1P2/5P2/6RN/2bq2PN/b3nr1q b - - 0 1 illegal: No possible last move
K1NNb3/3R1r1Q/bQp2p1B/1PP2r2/qP1qB1k1/1P4R1/2r2n2/1nrR3N b - - 0 1 illegal: No proof kernel
1q1n2N1/1N2Pq2/2n5/N1r1p2P/P2n2p1/2B1QPRB/r1kR1BbQ/2b1K2n b - - 0 1 illegal: No proof kernel
6nN/K1QP1pqP/2bb1Pb1/3k1qr1/p1B2n2/R1RN2Q1/P4Bb1/1r4RQ b - - 0 1 legal: proof: g4 c5 e4 g5 b4 d5 bxc5 dxe4 h4 h5 hxg5 h4 Bh3 Qb6 Bg2 Qh6 Bf1 Qh5 gxh5 Kd8 Bg2 Kd7 Bf1 Ke8 Ke2 Kd7 Ke3 Ke6 Kd4 a5 c4 b5 f4 h3 c6 h2 Kc5 e3 Kb6 b4 d4 a4 c5 e2 c7 e1Q c6 b3 d5+ Kd6 f5 e5 g6 b2 h6 e4 h7 e3 f6 e2 g7 Qf2+ Be3 e1Q Ne2 Na6 Nbc3 b1B Nc1 Nb4 N3e2 Bb7 c8Q Rb8 c7 Ne7 g8Q Bg7 Nf4 Nd3 Ka7 Bf8 Ng6 Ba8 Qg7 Rg8 Nh8 Rb5 Be2 Qeg1 Qg6 Ke5 d6 Kd5 Qb8 Bb7 c8R Qgg2 Rc4 Bc6 d7 Rg7 Bb6 Ng8 Qc7 Bd6 Qg4 Qf4 Bf2 Qe5 Re1 h1B Qf4 Qg6 Qg3 Bg2 Bf1 Qh6 Re3 Rg5 Qe1 Nf4 Ra3 Rb8 Rcc3 Bg6 Bb5 Rb6 Qh1 Qg7 Nd3 Qf5 Rg1 Rb8 Ba6 Rb1 Bc4+
1N1N2R1/1qpK4/PqPn1B2/3Qb3/p2P1r1n/2PR1kBN/Q6n/1rR1nb2 b - - 0 1 illegal: No possible last move
K4R2/PrPBn3/BRN2p2/q1q3Pb/2p1R2B/Qn2b3/P1Q1b3/Nk2r1b1 b - - 0 1 illegal: No proof kernel
1NRk4/p5B1/PBb1rn1Q/2Prp1qb/3P1Rnn/1P2q2Q/1n3N1Q/3B2K1 b - - 0 1 illegal: No proof kernel
B2Rqr2/P3Br2/2rR2n1/1Q6/4NPnP/pR2Q1bN/P2r3p/n1kr1Q1K b - - 0 1 illegal: No proof kernel
4k3/1PPn2b1/2r1p1nn/N1RB2KN/1Qr1Rn1p/qP1nQ3/1B5P/2RrN3 b - - 0 1 legal: proof: d4 f5 a4 c5 g4 cxd4 gxf5 b5 axb5 Nh6 e4 Ng4 f4 Nh6 f6 Kf7 e5 Ke6 f5+ Kd5 Ra6 Ng8 Ra1 Bb7 e6 Kd6 Bg5 Bf3 Bd2 Bh5 Bc1 Bf7 exf7 Qc7 Nd2 Qc8 Nb1 Qd8 Kd2 h5 c4 a5 b3 g5 b6 a4 b7 a3 Qe1 g4 Ne2 g3 Qd1 d3 Ke3 e6 Kf4 a2 Bh3 d2 Rg1 g2 Nd4 h4 Kg5 Ra4 Qe1 d1N Nd2 Nb2 Nc2 Nd3 Bb2 Qe7 Rc1 a1R Qe3 Ne5 Ne1 Bg7 f8Q Nh6 c5+ Kc6 Nc4 d5 Rc3 Kd7 Na5 d4 Rc4 d3 Re4 Qd6 f7 d2 f6 d1N Bf5 Ng6 c6+ Kc7 Bg4 Nf2 Bf3 Qa3 Qb4 Kd8 f8N Nd7 f7 Rd1 Nh7 Nd3 Nf6 Rh7 Rf1 g1N Nh5 Ne2 Rh1 Nef4 f8R+ Kc7 Rf5 Kd8 Rc5 Ke8 Qc3 Rc4 Qb4 Rh8 Rf1 Ke7 Rg1 Rc8 Rf1 Ke8 c7 Rd8 Ree5 Ra8 Bd5 Ra6 Re4 Rd6 Rf2 Rb6 Rc2 Rc6 Rc1
bQ1q2B1/5n2/p3qP1b/3Q3p/1nKPR2P/1P2q2q/r2QRNRN/4Bqk1 b - - 0 1 illegal: No possible last move, all moves rejected
2N1Rn2/B1q2Bb1/Q1k1BQR1/n2r3p/4bn2/P1P1pNqP/3P1Rn1/1nK5 b - - 0 1 illegal: No proof kernel
1Bqnbq2/1Q1N4/1RPbqpPq/5B1R/2PNRPpr/1qQ5/1k2KB1r/8 b - - 0 1 illegal: No proof kernel
3QB1N1/1k1RnN2/3Qb2n/2qR2nB/1pPbp2P/B4qrR/1n2PP2/Kn6 b - - 0 1 illegal: No possible last move, all moves rejected
4q3/P3bpQ1/1PkB1P2/2q2npK/1N1RBr1R/1N2n2P/1BQ2q2/N1q1r2n b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 g4 h5 gxh5 b4 Qd5 Ba6 Qd1 a4 b3 Bb5 cxb5 axb3 f4 g5 Kf2 c5 Kf3 d5 Kg4 Kd7 a4 d4 e4 d3 a5 c4 e6+ Kd6 e7 d2 e8N+ Kc5 e5 c3 f5 b2 a6 c2 a7 b3 h6 Qd7 b6 Qd6 e6 Rh7 e7 Qg6 Bd3 Kc6 Nf6 Nd7 e8Q Ne7 Na3 b1Q Nd5 b2 Ne2 Qd6 Kh5 Qa2 Be4 b1Q Bb2 c1Q Nc2 Qc5 f6 Rh8 h7 Nf5 h3 Be7 Qg8 Rd8 Qg7 Rhe8 h8B Ne5 Rh2 Nc4 Ned4+ Kd7 Nb3 Nce3 Rg2 Kc6 Rg4 Rd7 Qe2 d1N Rh4 Nf2 Qd2 Nh1 Qc3 Qa5 Ra4 Qb5 Nca1 Qbc2 Rd4 Qf2 Qc2 Rdd8 Qh6 Rd6 Bg7 Re6 Bf8 Re5 Bf3 Re4 Qg7 Rf4 Be4 Bd8 Qd2 Kd7 Nc3+ Nd5 Bb1 Re1 Bd6 Nde3 Nd5 Be7 Be4 Qbc6 Qd1 Qc8 Qd3 Kc6 Qc2 Qe8 Nb4+
6Bq/RNR4P/1K1RNp1P/2n1rP2/rbp2NQk/1P1n4/1Q2nq2/q3Bq2 b - - 0 1 legal: proof: c4 h5 d4 b5 a4 bxc4 e4 d5 exd5 h4 d6 h3 d5 Qd7 gxh3 Qd8 h4 Ba6 h5 Bb5 axb5 Rh6 Ra4 Rh7 Ra1 Rh8 Ke2 e5 Ke3 c5 f4 a5 h4 g5 d7+ Ke7 h6 Kf6 h5 a4 f5 c3 b6 g4 h7 Kg5 b7 a3 b3 c2 h6 e4 d6 a2 Na3 g3 Nh3+ Kh4 Be2 f6 Bc4 g2 Nb5 g1N Nc7 Ne7 Ne6 Ra4 Bd2 Na6 b8Q c1Q Qb6 Qe8 d8R Nc6 d7 Ne2 Qa7 Ncb4 Nhf4+ Kg4 Rc8 Nd3 d8N Rg8 Bd5 c4 Nb7 Bb4 Qd4 Nac5 Rc7 Qb2 Rf1 Kh4 Be1+ Rg3+ Rf3 Qh8 Qc1 Qb1 Qcb2 Qc2 Ng7 Qb1 Bg8 Qd1 Nge6 Qc1+ Bd2 Qf1 Bc3 Rg7 Rg3 Re7 Be1 Re8 Rd1 a1Q Rgg7+ Ng3 Qd7 Re7 Kd4 e3 Qc6 e2 Qg2 Qf2+ Kd5 Re8 Kc6 Re7 Kb6 Qf1 Bf2 e1Q Qg1 Qee2 Be1 Qef2 Rd2 Ne2 Qg2 Ne5 Rd6 Ned3 Nd4 Re5 Nde6 Qa2 Rgf7 Qa3 Qg6 Qa1 Qh5+ Kg3 Qg4+ Kh2 Rce7 Ra3 Na5 Ra2 Ra7 Ra4 Qh5+ Kg3 Nb7 Qd1 Rc7 Qa1 Qf3+ Kh4 Qg4+
B1q2q1N/r3PQb1/1K1QQp2/2p1rP2/2PB1q2/1R1P1n1B/2n1R1q1/1k2r2N b - - 0 2 legal: proof: d4 e5 a4 g5 h4 b5 axb5 gxh4 dxe5 d5 Qd3 d4 Qd2 d3 Qd1 Bf5 Kd2 Bg6 Ke3 d2 Kf3 Bd3 exd3 Bc5 Ke2 Bf8 Ke3 Ke7 b4 Ke6 c4 Kf5 g4+ Kg5 e6 a5 b6 h5 b5 a4 b7 a3 b6 h3 e7 a2 Nc3 h2 Nce2 f6 Qe1 d1R Bb2 h4 Nf4 h3 Rb1 a1Q Ng6 Nh6 Bd4 Qa6 Ne2 Ra7 Rb3 Bg7 Ng3 Nd7 b8Q Qf8 b7 Ne5 Qe8 Nf3 b8Q Qc8 Qf7 Nf5+ Ke4 c5 Kd5 Rh7 Qee6 Rh5 Nh8 Re1 Rg1 h1Q Rg2 h2 Qbd6 Qg1 Nh1 Ne3+ Ke4 Nc2+ Kd5 Qcd8 Kc6 Qd7+ Kb6 Qdc8 Qdd7 Kf4 Qdd6+ Rhe5 g5 Qa8 g6 Qac8 Rg5 Qg4 Bh3 Qh4 Rg2 Qh6 Ng3 h1Q Rh2 Qg1 Nh1 Nh4 Rg2 Kf3 Rh2 Ke2 f4+ Kd1 f5 Kc1 Rf2 Qf4 Re2 Bh6 g7 Nf3 g8B Qg2 Qh7 Bg7 Bf7 Re4 Be8 Re5 Bc6 Nh2 Ba8 Nf3 Rc3 Kb2 Qg6 Kc1 Qgf7 Kb1 Rb3+
2N2q2/K3PnN1/1R1R1p1P/Q4P1q/1PQ1rp1b/6Bk/r3Bqqn/R2Q1n2 b - - 0 1 illegal: No proof kernel
1QNb1n2/1pB1q1q1/B2P1R1b/B1R1p1P1/1q2P1qk/1P6/Kb3Q1N/1rR1r3 b - - 0 2 illegal: No proof kernel
1Qk4B/2p1q1r1/r1Pnn1r1/1nB2pbQ/3nP3/qP1B1N2/1PRR4/4K1NQ b - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 h5 e4 hxg4 f4 b4 f5 b3 axb3 Ba6 Nf3 Bc4 Ng1 Be6 fxe6 Bc5 Qd2 Ba3 Qd1 Bf8 c4 g5 h4 a5 c5 f5 h5 d5 e7 Kd7 e8Q+ Kc8 c6 a4 e6 d4 h6 g3 h7 g4 e7 a3 Qh5 a2 e8Q g2 Bh6 g3 Bb5 d3 Qef7 d2+ Ke2 Na6 Bc4 Nf6 Nh3 g1N+ Kf1 g2+ Kf2 Nf3 Bd3 g1R Qg4 Be7 Bf1 Ne8 Bf8 Rg8 h8B Rg6 Bd3 Nc5 Qg8 Nd4 Qh5 Nd6 Rh2 Nce6 Qf1 d1N+ Ke1 R1g5 Rc2 Nc3 Nd2 Ra6 Qh1 Ncb5 Rd1 a1Q Nf3 Qa3 Rdd2 Rg7 Nhg1 R5g6 Nh3 Bg5 Nhg1 Nf7 Bc5 Nfd6 Qf7 Qe7 Qg8+ Nd8 Qc4 N8e6 Qb4 Na7 Qb6 Nab5 Qb8+
rq1N2n1/Q3b3/1NpP1R1n/B1Q1Q1np/P4P1K/n2q1B1P/q4r1k/1R1R4 b - - 0 1 legal: proof: c4 f5 e4 d5 exf5 a5 cxd5 Be6 b4 Bf7 f3 Bh5 f4 Bf3 gxf3 axb4 Kf2 Kd7 Kg3 Kd6 a4 e5 d4 h5 h3 g5 f6 b5 f5 b3 f7 c6 f6 e4 Nd2 g4 Qe1 e3 Ra2 e2 Rc2 b4 Rb2 Nh6 Rb1 b2 Kh4 g3 Bg2 Be7 f8Q b3 Qg7 Rf8 Nc4+ Kd7 d6 Ke6 d5+ Kf5 Be3 Nd7 Bd2 Qb8 Ba5 Kf4 Nb6 Rf7 Qc3 e1N Qc5 Nc2 Rd1 b1Q Ne2+ Kf5 Rhe1 b2 Nf4 Na3 Ne6 Qd3 Nd8 Kf4 Rb1 Rf8 Red1 Rf7 Bh1 g2 Qh8 g1N Qh7 Ne5 d7 Ng8 d6 Ng4 Qg7 N4h6 Qh7 Rg7 Qh8 Rg5 f7 Rf5+ Qf6 Qd4 f8R Qd3 Rbc1 b1Q Bg2 Qb2 Rb1 Qa2 Rf7 Bf8 Qa1 Be7+ Rf6 Ne2 Qb2 Nc3 Qbb5 Ne4 Qe5+ Ke3 Qa6 Kf2 Qa7 Ng5 Bh1 Qf1 Bg2 Kg1 f4 Kh2 Qc5 Rd5 Bf3 Rd3 Ne6 Rc3 d8Q Qd3 Qe8 Rc2 Nd8 Rg2 Re6 Rf2 Rf6 Bf8 Qe4 Be7 Qee5
1n4qQ/pR1Q1P1q/NR1P2q1/NRP4p/K4b2/2r4P/Br2k1N1/n1B1nq2 b - - 0 1 legal: proof: d4 c5 g4 cxd4 a4 b5 axb5 f5 gxf5 d5 e4 d3 Ra5 d4 Ra4 Be6 Ra1 Bd5 exd5 Qd7 Bf4 Qc8 Bc1 Qd8 Kd2 Nd7 c4 Kf7 b4 Kf6 Ba3 Ke5 f4+ Ke4 b6 e5 c5 g5 b7 g4 b8N g3 b5 g2 f6 Ne7 f5 Nc6 b6 Bd6 b7 Nb4 Nf3 g1Q Ne1 Nc2 Na6 Qdg8 b8R h6 Kc1 Ke3 Kb2 e4 Kb3 d2 Ka4 Bf4 Bc4 d3 Ba2 Q1g2 Qg4 d1Q Nd2 Qb1 Nb3 d2 d6 d1Q Na5 Qde2 Rb2 Rb8 Rb4 Qg3 Ng2+ Kf2 Rd1 e3 Rd3 Qed1 Bc1 e2 Rdb3 Qf1 Qh3 e1N Rb2 Re8 Rb7 Re2 R2b6 Nb8 Qg4 Qh4 Qg7 Rh7 Qd7 Rg7 h3 Rg3 f7 h5 f6 Qh7 f8Q Qg5 f7 Rc3 Qfe7 Qgg8 Qf6 Rd2 Bd5 Ke2 Ra3 Na1 Ba2 Qbc2+ Rab3 Qcg6 Qh8 Rb2 R3b5
1K1nQr2/3BQp2/qRr1P1p1/1N1RBPqN/b3rr2/P5nP/8/1BnNk3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 b5 c3 b3 Qd4 b4 Qd1 b2 Kd2 b3 Ke1 Bb4 cxb4 Qe7 Qd2 Qh4 Qd1 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 f4 c5 Kd6 g6 e4+ Kh4 a3 c4 h3 Kg3 h6 Kf2 e6 c3 f5 c2 h7 Nc6 e5 Na7 b5 Qa5 e7 Rb8 e8B Rb6+ Kc7 d5 e6 d4 Nf3 d3 Bf4 c1N Nc3 b1R Bd7 d2 Bd3 b2 Nd4 Qa6 Be5 Rc6+ Kb8 Nf6 b6 Rf8 h8Q Ne4 b7 Ng3 Qa4 d1R Qf6 Rg1 Nd1+ Ke1 Qe7 Rf1 Ra2 Ra1 Nb5 b1Q Rb2 Qa2 Rhh2 Rf4 Bb1 Qd5 Rhc2 Qd2 Rc5 Re4 Rd5 Qg5 Nd4 Ra2 Rb6 Rf2 Nb5 Rf3 Qe8 Rff4 Qb4+ Rc3 Qbe7 Nc6+ Kc7 Rcc4 b8N Bb7 Bc8 Ba8 Nd7 Nd8+ Kb8 Bc6 Nf6 Rc3 Bd7 Rcc4 Na7 Ba4 Nh5 Rc6 Nb5
B3K1Rr/Q1b3N1/q1Pqp2b/2q1B1n1/QNQ1PP2/pb6/3qPr2/1R3Bk1 b - - 0 1 illegal: No proof kernel
3Nk1BB/2K5/2R1b2q/P2bNQP1/1p1p4/2n1NQb1/RPqP3n/1n2bBr1 b - - 0 2 illegal: No proof kernel forced: bxDB
KB2Q3/1p1B1nnq/1rQ3P1/1P4b1/2R2b1R/1q1NP3/R1QnP1bp/nk5N b - - 0 1 illegal: No proof kernel
1N1R4/4KPP1/p1B2Bp1/3bb3/P1qbQPnQ/3nqNb1/2r2k1q/BR2R3 b - - 0 1 legal: proof: g4 c5 e4 b5 b4 d5 bxc5 dxe4 h4 f5 gxf5 g6 h5 a6 h6 Ra7 Bh3 Rd7 Bg2 Rd6 Bf1 Rf6 Rh5 Rf7 Rh1 Rg7 hxg7 Qa5 Ne2 Qc7 Ng1 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 h5 d4 e5+ Ke3 Kg5 c4 h4 a4 h3 f4+ Kh4 d5 Kg3 c6 h2 c7 b4 f6 b3 f7 b2 d6 Be6 c8R Nd7 c5 Ngf6 c6 Bd5 c7 Qe8 Qe2 Nc5 d7 Nd3 d8B Bd6 Na3 b1Q Bg2 Qb3 Nf3 Qc4 Re1 h1Q Nc2 Qh2 Ncd4 Rf8 Rb1 Ng4+ Kd2 Bc5 Nc6 Bd4 Bf6 Rh8 Rd8 e3+ Kd1 e4 c8Q Rh7 Bb2 Qe6 Qc2 e2+ Kd2 Kf2 Ba1 Qe7 Qb7 Qec5 Qc3 e3+ Kc2 Rh5 Nb8 Re5 Bh1 Re6 Qe7 Rc6 Qe4 Rc7 Red1 e1B Bg2 Bd2 Re1 e2 Bh1 Nb4+ Kb2 Rc8 Ka3 Nd3+ Qb4 Qb6 Qf8 Be5 Qh8 Qe3 Bg2 Bdc3 Qh5 Qc6 Qh8 Bcd4 Qh7 Nb2+ Kb4 Qcc1 Qh3 Rc2 Qh4+ Qg3 Rh1 Rc7 Qd3 Bb3 Nd2 Rc8 Ba8 Bd5 Nf3 Qc2 Qe4 Nd3+ Ka5 Qa2 Rhe1 Rc2 Bb7 Qc4 Bc6 Nc5 Kb6 Nd3+ Kb7 Rc3 Kc8 Rc2 Qh8 Qh2 Kd7 Kg2 Red1 e1B Ke7 Bg3 Re1 Kf2 Qh4
1Q2rNQ1/3p1R2/2B3bB/6Q1/q1kPR2R/2qPpP2/r2bb1KP/2q1qnN1 b - - 0 1 illegal: No possible last move, all moves rejected
Q5kq/2p2q2/1R1P1nNR/1r1BR1bq/p1P2qQ1/Q2K2PB/P3r2n/2N4n b - - 0 2 legal: proof: e4 b5 h4 d5 exd5 g5 hxg5 b4 c4 Bh3 f3 Nf6 b3 Bc8 Bb2 Bg4 fxg4 Ng8 Bc3 bxc3 Ke2 e5 d4 f5 g6 h5 g7 Kf7 b4 a5 b5 c2 g5 c1Q b6 f4 g3 h4 d6 f3+ Kd3 h3 b7 f2 d5 a4 d7 h2 d6 Nc6 b8R Nf6 Rb7 Rh5 Nc3 Qf4 Qc1 Be7 Nh3 Kg8 Rb6 Nd4 Qa3 Nf3 Ne2 Qe8 Bg2 f1Q d8Q Rb8 Re1 e4+ Kc2 e3 Kd3 Qf2 Nc1 e2 Qd7 Qf7 Qg4 Re8 Bf1 Qe5 Nf4 Qfc5 Ng6 Qf4 Bh3 Qa5 Reg1 e1Q Rf1 Qee6 Re1 Qc8 Re5 Bd8 Rf5 Re2 Re5 Kh7 g8B+ Kg7 Rg1 h1N Rf1 Nh2 Rf3 Qe8 Bd5 Qf7 Rfe3 Kg8 Re6 Qb5 R3e5 Qc5 Ne7+ Kh8 g6 Rf5 g7+ Kh7 Ng6 Kg8 Bf3 Qa5 Re3 Rb5 Bd5 Ne8 R3e5 Bg5 Nf8 Qd8 Rh6 Nf6 Ng6 Qe8 Qc8 Qa8 Qa6 Qac8 Qa5 Qcg4 Qa8 Qh5 Bc6 Bh4 Qc8 Bg5 Qg4 Qc8 Nf8 Qcf5+ Be4 Qh7 Ng6 Qh8 Ba8 Qf8 Ne7+ Kf7 g8Q+ Ke8 Qd5 Qff7 Qdf3 Kf8 Ng6+ Kg8 Qb7 Rc2 Qa7 Rg2 Bd5 Re2 Qa8+
1K1B1Q1n/Q3bBn1/1pr2Rn1/2P2P2/rq1nN2N/1PP2R2/r3p1Q1/k2q1N2 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 g5 dxc5 b6 a4 Nf6 h4 gxh4 a5 Ng8 a6 Bb7 axb7 Qc7 Be3 Qc8 Bc1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 h5 Kd5 a5 f4 e5 g4 e4 b3 e3 Bh3 e2 Bd2 a4 Bb4 a3 Qc1 a2 Ba3 Nh6 Qd2 Nf7 Bc1 Ra4 Qe1 Nc6 b8N Nce5 Qf2 Be7 Rh2 Rh6 Qe3 Nh8 Nf3 Neg6 Nbd2 d6 Kc6 d5 Kb7 d4 Nf1 d3 Rg2 d2 Rg3 d1Q c3 Q8d4 Bg2 h3 Nh4 h2 Bd5 h1R Rf3 Qb4 Bf7 Rg1 Rb1 a1N Qd2 Rh1 Qa2 Nc2 Ra1 Nd4 g5+ Kg7 Nd7 Rg1 Ng2 h4 Kb8 h3 Nf6 h2 Nh4 h1N Ne4 Ng3 f6+ Kh7 Rb1 Nh5 f5 Ng7 Bf4 Rg4 Bc7 Ra5 Qa1 Ra2 Bd8 Rf4 Rb2 Rg4 Rd2 Rf4 Be8 Kg8 Bf7+ Kf8 Bg8 Ke8 f7+ Kd7 f8Q Kc6 Bf7 Rg4 Be8+ Kd5 Rdd3 Rc2 Qa7 Ra2 Rde3 Rf4 Nf2 Rg4 Re6 Re4 Rf6 Rf4 Nh1 Ke4 Bf7 Rg4 Ne3 Kd3 Ng3 Rf4 Nef1+ Kc2 Ne4 Kb1 Qa3 Ne5 g6 Ka1 Qa6 Nh5 g7 Neg6 g8Q Ng7 Qb7 Ne5 Ne3 Ndc6+ Kc7 Qa3 Ng5 Ra4 Rg6 Qb4 Ne4 Nh5 Nf1 Nd4 Rc6 Rd6 Qg2 Neg6 Kb8 Ng7 Qa7 Re6 Rc7 Rd6 Rd7 Rc6 Rd6 Kb2 Re6 Ka1 Rf6
RB2n1q1/1nP1NBr1/np3b1N/R1Pp3N/Kn2PQ1Q/1P5q/B3kr2/4q3 b - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 e5 d4 exf4 dxc5 b6 a4 Ke7 a5 Bb7 a6 Ke8 axb7 Qf6 Kd2 Qe7 Ke1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb3 Ke5 e4 h5 g4 f5 c4 a5 c6 d5 c5 f3 g6 a4+ Kb4 h4 g7 h3 b3 f2 g5 h2 g6 a3 Bg5 a2 Bg2 f1N Nh3 f4 Qg4 Kd4 Nd2 Kd3 Nf3 Na6+ Ka4 Ne3 b8Q Nf6 g8N Ke2 g7 Ne8 Nh6 Rh7 g8B Nc4 Bf7 Rg7 Qh4 Ncd6 Ne5 f3 Bf4 f2 Ng6 f1Q Ne7 Qe1 Rg1 h1Q Bf1+ Kf3 Rg2 Nb7 Bd3 Qc8 Rg6 Qhg1 Bb1 Ke2 Bh2 Qe6 Qbf4 Rd8 Nf2 Qh3 Nh1 Rd6 Rg5 Rf6 Rg6 Rf5 Rd6 Qg6 Rd8 Qh7 Ra8 Qg8 Qfg5 Rf2 Bb8 Qg3 c7 Qh3 Ng6 Bd6 Ne7 Be5 Qc1 Bf6 Ng3+ Kf3 Nh5 Ke2 Bc2 Qhh1 Qcf4 Qh3 Rd1 a1N Bb1 Nc2 Ba2 Qf3 Rd4 Qfc3 Rb4 Qh3 Rb5 Ncb4 Ra5
q1Q5/1p2r1qn/2p1Q3/N2N1R1B/2R1PPrB/1PP1rR2/1Bn3bK/k2q1r2 b - - 1 2 legal: proof: d4 e5 dxe5 g5 g4 a5 b3 f5 Qd4 a4 Qb2 a3 gxf5 axb2 h4 g4 Nd2 Bh6 Nb1 Bg5 hxg5 Kf8 Nh3 Ke7 Ng1 Ke8 f4 Ke7 Kf2 d5 Kg2 h5 e4 h4 a4 h3+ Kh2 c6 g6 d4 a5 d3 g7 d2 a6 d1Q e6 Kd6 a7 Kc5 e7 Kb4 e8Q Nf6 g8R Rh7 Nc3 b1R Ra5 Re7 Bb2 Nh7 f6 Na6 f7 Rc1 Nf3 g3+ Kg1 g2 f8B Bg4 Ne5 Bf3 Kh2 g1R Rg6 Rg4 Be2 Bg2 Nc4 Q8d4 Re1 Qg7 Rf5 Rd8 a8Q Rd3 Na5 Re3 Qac8 Qd8 Qe6 Qa8 Q8c8 Rd1 Rf1 Ra1 Rf3 Rf1 Ba1 Ka3 Nd5 Ka2 c3 Nb4 Bb2 Nc2 Rgg5 Qf7 Bh6 Qg7 Rh5 Kb1 Bg5 Ka2 Bh4 Kb1 Bc1 Ka1 Bd1 Rg3 Rhg5 Rg4 Bb2+ Kb1 Rf8 Qh6 Nf6 Qg7 Rc5 Rg6 Rg3 Rg5 Bh5 Rg4 Rc4 Ka2 Ba3 Ka1 Bc1 Bf3 Nd5 Rg1 Ba3 Rb1 Bc1 Bh1 Kg1 h2+ Kf1 Bf3 Rf5 h1Q+ Kf2 Bg2 Rf3 Qd1 Ba3 Qd3 Bc1 Qd2+ Kg1 Qd3 Kh2 Qdd4 Bd2 Rf1 Bc1 Qd1 Bb2+
r1n5/b1QP1BpR/2nNp2q/2B2qRk/P2N2Nn/3Q2b1/nQ2P1P1/1K3b2 b - - 0 2 illegal: No proof kernel forced: bxLB
5B2/np1P3K/Q1nq1P2/nb3r1p/1PRN2rk/3PnRB1/2QnB1Q1/5nN1 b - - 0 1 illegal: No proof kernel
2n3B1/r1PrQN2/pQK3kB/1NR1Pp2/4n1R1/1brnbP2/1r2b2P/5B1N b - - 0 1 legal: proof: d4 b5 b4 c5 g4 e5 dxe5 h5 bxc5 hxg4 a4 b4 Ra3 Qb6 Ra1 Qb5 axb5 Ke7 Nd2 Kd8 Nb1 Ke8 Kd2 g5 Kd3 f5 Kd4 Kf7 Kd5 a6 e4 b3 c4 b2 b6 g3 f3 g2 c6 g4 e6+ Kg6 c7 g3 e7 Bh6 e8N Ra7 c5 Rh7 b7 Be3 e5 Nf6+ Kd6 Nc6 b8Q Ne7 Nc3 b1R c6 Rb2 Nge2 g1N Qb7 g2 Ra5 Nh3 Qdb3 g1R Nb5 Nf2 Ng3 Nd3 Bd2 Rg2 Rg1 Re2 Bc1 Rec2 Rg2 Rc3 Nh1+ Kh5 Rg8 Rg7 Qe6 Kg6 Qb6 Bb7 c8B Ba8 c7 Bd5 Qb8 Bb3 Qb6 Bf2 Qb7 Nb4 Bh6 Be3 Nd4 Kh5 Qc4 Rf7 Kc5 d5 Be6 Nc8 Qb6 Re7 Rg4 Rd7 Bg5 Kg6 Bg8 Nc2 Rb5 Ne1 Nd6 Ne4+ Kc6 Ng3 Rc5 Ne4 N4b5 d4 Rd5 d3 Qcc5 d2 Nf7 d1B Bf4+ Kh5 Bh6 Nd3 Bg7 Be2 Bh6 Bc4 Qe7 Ba2+ Rc5 Bb3 Bg5 Kg6 Bh6+
r3B2N/nb1p1B1n/1p1bQ2N/3kr3/3P3P/3RP3/1P1nQ2K/1RrbnRB1 b - - 0 2 illegal: No possible last move, all moves rejected
b2q2rb/1nkbnKPn/p6B/P1R1N3/3QpR1N/4PR2/3P3B/n1b1BQ2 b - - 0 2 legal: proof: g4 c5 b4 b5 c4 g5 h4 f5 gxf5 a6 f6 d6 Bh3 d5 Be6 g4 bxc5 Ra7 c6 Rd7 c5 Rd6 Bf5 Re6 Bd3 Re5 Bc4 Rg5 hxg5 dxc4 f4 h5 Kf2 e5 Ke3 c3 Ke4 h4 a4 h3 f7+ Ke7 f5 g3 a5 c2 f6+ Ke6 c7 Kd7 Kf5 b4 Kg6 h2 c6+ Kd6 e3 e4 Ba3 c1N Qf1 g2 Nf3 g1B Nh4 Bd7 c8Q Nb3 c7 Nc6 Bb2 Bg7 f8B+ Nge7+ Kf7 Rg8 g6 Bh8 Bh6 Bf2 g7 Bg3 Qa8 Be5 c8R Bd4 Ba3 Bb2 Qa7 Bc1 Rg1 h1N Rg3 Nf2 Rf3 Nh3 Bb2 Qb6 Na3 Qd8 Rb1 Na1 Qd4+ Nd5 Rf4 b3 Bc3 b2 Rf3 Ne7 Rc5 Nc6 Nc4+ Kc7 Ne5 Ne7 Rf4 Nb3 Ra1 b1B Rf3 Ba2 Rf4 Ba3 Re1 Bb2 Re2 Ba3 Ref2 Bc1 R2f3 Na1+ Rd5 Nf5 Bb4 Bb3 Be7 Ba4 Rc5 Ng5+ Kg6 Nh7 f7 Bb3 f8B Nd6 Bf6 Nb7 Bd6+ Kc8 Bc7 Ba4 Kf7 Ne7 Nf5 Bac6 Bh4 Bb2 Bd6 Bc1 Be1 Ng6 Be7 Kc7 B7h4 Ne7 Bhg3 Nf6 Nh4 Nh7 Rc4 Nc5 Bh2 Ba8 Nc6 Nb7 Rc5 Kc8 Ne5+ Kb8 Nc6+ Kc7 Ne5+
r4rnQ/br5R/PBQ3N1/4KP1k/R1BB2rp/8/nNP1pr1P/1bR4r b - - 0 1 illegal: No possible last move, all moves rejected
2n2Rn1/r4p1q/2pR2r1/5PPQ/N1PQ2B1/q1NqB2K/2R2k1P/1B1rn2n b - - 0 1 illegal: No possible last move, all moves rejected
4Qn2/2bq4/KN3n2/4Q3/RN1P1Qpr/Pp2P1Pp/rbk1BR2/rR3b1B b - - 0 1 illegal: No proof kernel
1q6/1NN1Q3/2R4b/PrB1Qp2/2pn1QP1/Pk1B1bpr/1r2P1Bn/2Rn3K b - - 0 1 illegal: No proof kernel
1QQ4b/1b6/P3BQrN/B1RpBK1N/p1bR1P2/1nn1PP1r/7p/r1k4q b - - 0 1 illegal: No proof kernel
bQ2rk2/b2QnNP1/3BPb2/1P4p1/1p1rB1p1/1Pq1R1r1/4Q1NK/2n1RB2 b - - 0 1 illegal: No possible last move, all moves rejected
n6r/BBB1QPq1/NPpQ4/2P4n/r3n1p1/Rk1p2N1/2bP2R1/1bQ1K1b1 b - - 0 1 legal: proof: e4 a5 a4 f5 exf5 b5 g4 h5 gxh5 Nf6 axb5 Ng8 b4 axb4 h4 Kf7 c4 e5 f4 d5 h6 g5 f6 Ke6 f7 e4 f5+ Ke5 f6 Kd4 h5 g4 h7 b3 h6 e3 Nc3 c6 Na4 e2 Bb2+ Kd3 Rh2 d4 Ra3 Qa5 Qc1 Nd7 Rg2 Bc5 f8Q Qc7 Qd6 Nb6 f7 Nf6 Bc3 Nh5 Ba5 Bf5 Qe7 Qe5 Qd6 Rhg8 h8Q Qg7 h7 Ra6 Qe7 Na8 Bc7 Rc8 Qhf8 Ra5 Ra1 b2 h8B b1B Qd6 Ra7 Qfe7 Bh7 b6 Ra6 Bb8 Re8 Ba7 Rg8 Qa3+ Kc2 Qc1+ Kb3 Ra2 Bhc2 Ra1 Qg6 Be5 Rh8 Ra2 Qg7 Ra3+ Kb4 Nh3 Ra5 Nf2 Ra6 Ne4 Ra5 Kf2 e1N Ng3 Nf3 Ke2 Ng5 Ke1 Ne4 Bd3 Nc3 Bf5 d3 Bc8 Ne4 Bb7 Ra6 Bf4 Ka5 Be5 Bg1 Nc5+ Kb4 Bf4 Ra4 Na6+ Ka5 c5 Kb5 Qdf6 Kc4 Qh6 Rd8 Bc7 Rh8 Ra1 Kb3 Qhd6 Be3 Ra2 Bg1 Ra3+
Q3r3/N3BPpr/bnR3b1/k1r3QQ/2p1PN1P/2nB2R1/pBP5/K4nq1 b - - 0 1 legal: proof: g4 b5 a4 h5 axb5 hxg4 e3 f5 Ke2 e5 e4 Bc5 exf5 e4 Ke1 e3 Ke2 Bb6 Kd3 e2 Kc3 Be3 dxe3 Qh4 Kd2 Qd8 h4 e1N Kc3 c5 f4 d5 b4 Kd7 Kb2 Kc7 f6 Kb6 f7 a5 f8Q d4 e4 a4 f5 c4 f6 d3 f7 g3 Ne2 g2 Rh3 g1R Nbc3 d2 Rg3 Ba6 Qe7 Ng2 Qg5 Nd7 Nf4 Ne3 Bd3 Rh7 Qdh5 d1B Ra3 Rf1 Ka1 Ngf6 Bb2 Nfd5 Rb3 Qc7 Ra3 Qc5 Ra2 Kb7 b6 a3 Nb5 Re8 Na7 Nc3 b5 Rg1 Rf3 Nf1 Rg3 Kb8 b7 Kc7 b8B+ Kb6 Be5 Ka5 Bd6 Nb6 Be7 Bg4 Qgh6 Bf5 Q6g5 Na8 b6 Bg6 b7 Nb6 b8Q Rg2 Nd5 Qg1 Qc8 Rf2 Qa8 Rf5 Nf4 Rc5 Bc1 Nba4 Rb2 a2 Rb6 Ne3 Re6 Nf1 Rc6 Nb6 Bb2
K1N2bk1/3R1p2/3r1PrN/Pr2P2R/n2qP2Q/B2Q2R1/bpnn2Bp/1N6 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 h4 g5 hxg5 Nc6 cxb5 Nb8 b4 axb4 Kd2 c5 Kd3 h5 Kc4 d6 Kd5 h4 f4 b3 g4 c4 a4 h3 e4 c3 g6 c2 g5 Bd7 g7 Ke7 a5 Rh6 f5 Na6 g6 Nc5 b6 Rb8 b7 Na4 Nf3 Be6+ Kc6 d5 Nh2 d4 Bg2 d3 Ng4 Nf6 g8R d2 g7 Rg6 Nh6 Ng4 f6+ Ke8 Ra2 Qd4 Ba3 c1N Qe1 d1R Rd2 b2 Qh4 Ne3 Kc7 Qb4 Rd7 Nb3 Kc6 Nd2 Rh2 Rd8 b8Q Nc2 Qb5 Qd4 Kb7 Ba2 Qd3 Rc8 Rh1 Rc5 Ka8 Rb5 Rh8 h2 g8N Bb4 Rg1 Kf8 Rh7 Bc5 Ne7 Bb4 Nc8 Bc5 Nf5 Kg8 Rh5 Bf8 Bf1 Rc1 Rg3 Re1 Bg2 Re3 Qc4 Rc3 Qe2 Rc6 Qd3 Rd6 Nh6+
NB1r4/1rP1N1bB/1b1PR1R1/nq1k1B1P/1p1p2RP/5nn1/2pQb1K1/7Q b - - 0 1 illegal: No proof kernel
2Nn3b/2pPNp1P/1Qr1Br1b/1KP1R2p/6nB/k2Pb2R/4rQQq/7B b - - 0 1 illegal: No proof kernel
5bK1/2Rqk2R/N3P2P/rp2B1b1/2R1p1Nr/P1nQ3p/2B1P2r/n3QB1q b - - 0 1 illegal: No proof kernel
1n1Q1rB1/q1N2r1q/B1RRp3/pN4bP/Pn2k3/1P2B1Kp/1QP3bN/5q2 b - - 0 1 illegal: No proof kernel
2Nk2q1/1B3nr1/1KnPp1P1/1b4Q1/QNPB4/1bpR2Rp/1Qr1Pb2/q5B1 b - - 0 1 illegal: No proof kernel
4R3/2bBQ1pn/NP1n4/2R3k1/QB1pqrb1/P2P4/P1Kpr1Qr/q2B3N b - - 0 1 illegal: No possible last move
R1NR1Nb1/B2rp1Kn/3P3P/k4qB1/1q1r1B2/4PR2/2p1P1pn/q1QQb3 b - - 0 1 illegal: No proof kernel
2R1Qn2/3bp3/KP1PQ1P1/3r1R2/N1pPq1q1/3n4/N2prRBr/B1b2Qk1 b - - 0 1 illegal: No possible last move, all moves rejected
BB2n3/k1Pb1K2/qpQ1PQ2/1R3p1P/4N2r/n1N1p1PR/3qr1rQ/2R3b1 b - - 0 1 illegal: No possible last move, all moves rejected
Q7/1P5p/2RB2BK/n1bBnNPp/1q3qbP/R2n2k1/Pr1Qp2N/1r5R b - - 0 1 illegal: No proof kernel
N5r1/PKR1b1Q1/2Pk3N/1n1nRNP1/p1pPp2Q/2q3Q1/1b2BB2/4qb1r b - - 0 1 illegal: No proof kernel
nnbr2B1/1nN1KQ2/1Q1Np1q1/2PR1Q1k/P1Np1P2/3P4/r4p1b/R2B2n1 b - - 0 1 illegal: No possible last move
Kn1RQkbB/N1Q5/1p3pBP/nP5P/bp3B2/4b1q1/r1Nr1P1b/6RR b - - 0 1 illegal: No possible last move, all moves rejected
1nN5/R2B2nB/P2r2r1/K3Q2N/1RpRqPpb/1NQPrpPb/8/k1r5 b - - 0 1 illegal: No possible last move
Nb1Q2r1/5P1k/P5qR/pPrb3n/2pQ1r1B/R2rP2N/n1p5/NR2K2B b - - 0 1 illegal: No possible last move
Rrq1b3/4QpK1/3Np3/BP1bn1PQ/2n5/1P2Pp1B/kQ4nN/3rRnN1 b - - 0 1 legal: proof: c4 g5 f4 gxf4 a4 b5 axb5 d5 cxd5 Bb7 h4 Bc8 g4 Bd7 g5 Bh6 g6 Bg5 hxg5 Bc8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g7 c5 d6 a5 d5 e6 b3 a4 d7 c4 e3 h4 d6 a3 Qe1+ c3 Qg3 a2 Qg2 h3 Qb7 h2 Be2 c2 Qf3 Nc6+ Ke4 Rb8 Bc4 Nge7 g8N Nf5 Nc3 Ne5 Nf6 Nh4 Qh5 Ng2 Bd2 Ka3 Ng4 c1N Bf1 Ne2 Re1 Qc7 d8Q a1N d7 Nc2 Qf6 Rd8 Ra1+ Kb2 Ra8 Na3 Be1 Ng3+ Kd4 Nec4 Ne4 Ne5 Nd6 Ka2 Ba5 Nac4 Qg7 Bb7 Qgh8 Qc8 Qg7 Rg8 d8Q Bc6 Qe7 Rd8 Qgf6 Be8 Qfh8 Nh4 Bh3 Rd7 Nf3 Rd8 Re1 h1B Ng1 Bd5 Nh2 f3 Q8h7 Nd3 Qh8 Ng2 Nf5 Nf1 Qe5 Rd6 Q5f6 Ncb2 Qg7 Rc6 Nd6 Rc1 Qgf6 Rd1 Qg7 Nc1+ Ke5 Nc4+ Kf6 Nd3 Qgh6 Bdc6 Kg7 Bd5 Qh7 Nde5 Qc2+ Ka1 Qc1+ Ka2 Qb2+
b1N5/3p1n1R/6B1/1PpQN1Qn/Br1kb1K1/R2PpPB1/4P1rb/b2Q1q2 b - - 0 1 legal: proof: b4 g5 a4 b5 axb5 f5 h4 f4 c4 f3 c5 fxg2 b6 g4 b5 c6 b7 Qb6 Nf3 g1N cxb6 Nh3 Ng1 Ng5 hxg5 Bg7 Nc3 Bh6 Nb1 Bf8 g6 a5 d3 h5 g7 Kf7 Qc2 Kf6 Nh3 Ke5 Qa4 c5 Ng1 g3 Bh6 g2 Qb3 a4 Qd1 a3 Nc3 h4 Ne4 a2 Bf4+ Kd4 Nd6 e5 Bg3 Nc6 b8Q h3 b7 Ra4 Qa8 h2 b8Q Bb7 Qd8 e4 Qg5 Nd8 Nc8 Nf6 g8B Bd6 Bb3 Rb4 Ba4 Nf7 Kd2 Bb8 Ke1 Nh5 Nf3+ Kc3 Ne5 Kd4 Kd2 g1Q Bh3 Rg8 Bf5 Qf1 Bg6 Bc6 Rb1 a1B Rb3 Bd6 Ra3 Bb8 Qa7 Ba8 Qb7 Qg2 Ke1 Qf3 Kf1 e3 Qc6 Qf5 Kg2 Qh3+ Kf3 Qf1 Kg4 Bd6 Rg1 h1B Rg2 Bc7 Rh2 Be4 f3 Nf4 Rh7 Nh5 Nc4 Bf4 Ne5 Rg7 Bh4 Bh2 Bg3 Qf2 Qf4 Qg2 Kh4 Nf6 Bh5 Rg5 Be1 Nh8 Bg6 Nf7 Qe6 Rg3 Qg5 Qf1 Qa2 Rg2 Bg3 Nh5 Kg4 Nh8 Qab3 Nf7 Qd5+
kQ1r4/2pQRp2/P2q1P1K/2b1bBp1/7N/3P4/1nn1BP1B/Nnr1n1RN b - - 0 1 legal: proof: e4 d5 c4 h5 cxd5 a5 b4 Bd7 bxa5 Bf5 g4 hxg4 exf5 Qc8 Bd3 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kc8 Kf4 b5 Kg5 Kb7 a4 e5+ f6 g6 h4 e4 h5 b4 h6 g3 a6+ Ka7 d6 e3 h7 b3 a5 b2 d7 e2 Na3 e1N Ne2 b1N Nc2 g2 Rg1 Qe7 d8Q Nd7 Ng3 Nc3 Nh1 Ne5 Be2 Nh6 d3 Rc8 Bf4 Ka8 a7 Nb1 Qd7 Nf5 Bh2 Nd4 Qd2 Qd6 Qb4 Be7 Kh6 g5 Qb6 Rhd8 h8N Nc4 Ng6 Nb2 Nh4 Rb8 Ra2 Rb7 Na1 Ndc2 Ra4 Rbb8 Qb3 Rb6 Re4 Rc6 Re6 Qe5 Qb4 Bc5 Re7 Qd6 Qf4 Kb7 a8B+ Ka7 a6 Kb8 Rf1 g1B Qb4+ Ka7 Bb7 Kb8 Bc8+ Ka8 Be5 Bh2 Rg1 Bf4 Qb3 Bc1 Bh2 Bf4 Qh3 Be5 Bf5 Bcd4 Qb4 Rc4 Qg4 Bc5 Qb6 Rc3 Qa4 Rc4 Qd7 Ne3 Qb3 Rc1 Qb4 N3c2 Qb8+
1RNbrn2/KPP4Q/p3r3/2B2qnN/1rR2bp1/P3rQ2/1Q3pP1/B5Rk b - - 0 1 illegal: No possible last move, all moves rejected
K1n1br1B/pQ2R1rB/3P4/Pn1nqN2/1P3N2/RQ1R2P1/2Bkpp2/4b2n b - - 0 1 legal: proof: e4 g5 c4 b5 g4 bxc4 h4 d5 exd5 Qd6 hxg5 Qg3 fxg3 Bf5 Bh3 Be6 Bf1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 a4 f5 a5 e5+ Kc3 Kc5 b3 f4 d6 h4 d7 h3 d8R e4 g6 h2 g7 e3 d3 f3 g5 f2 g6 Rh7 Qf3 Bd7 Nd2 Ne7 g8B Nc8 g7 Nc6 Ra3 Nb4 Ne2 Be8 d4+ Kb5 d5 c5 Rg1 h1N Nf4 Be7 Bd3 e2 Bb2 Bg5 d6 Nd5+ Kc2 Kb4 Rd1 c3 Rd7 c4 Nf1 Bf6 Re7 Rb8 Ne3 Bg5 Kc1 c2 Kd2 c1N Bc2 Na2 Nf5 c3+ Kd3 Ra8 Ke4 Bf6 Bb1 c2 Rd3 c1Q Bc2 Bc3 Qg2 Be1 Be5 Rh4 Bh7 Qa1 g8Q Rg4 Bh8 Nac3+ Ke5 Rg7 Ke6 Bh5 Kd7 Nb5 Kc6 Be8+ Kb7 Qe5 Rd1 Kc3 b4+ Kb2 Rdd3 Kc1 Qf3 Ne3 Qb3 Nd5 Rc3 Kd2 Qg2 Ncb6 Qe4 Rd8 Rf3 Nc8 Ka8 Bd7 Rc3 Rf8 Re3 Be8 Rf3 Ne3 Qb7 Nd5 Rd3+
2r2k2/2R1r2Q/1N1npNBP/q2PK2Q/2B2pp1/4P1P1/1nq2bQq/4Rr1R b - - 0 2 illegal: No extended proof kernel
2R1r3/q1b3Q1/2B1Q2N/pN1PPb1k/P2pQb1P/B1BrpR2/5r2/K1nq4 b - - 0 1 illegal: No proof kernel
1Q4k1/q5rp/1PB2pPr/N2Bn2P/3qQ2Q/1p1P1Nrq/2R1nb1R/1K4B1 b - - 0 1 illegal: No possible last move
3n4/2b3q1/1R1r2pR/2KRbB2/QNPNNBP1/1pQ1q3/pP1r2Pr/b4k2 b - - 0 2 illegal: No proof kernel
nB2KQ1Q/1Q3P1R/nN6/q3pp1q/R1pn3r/PP2rN1B/3k1P2/N1b1r3 b - - 0 1 illegal: No proof kernel
6QN/B1p1Rr1q/1p6/5nr1/1nq1B3/bP3p1B/Pkq1Q1PP/N2NKRr1 b - - 0 1 illegal: No proof kernel
2q4B/2N1r1p1/1Q2pq1p/2K1Q1N1/1r3b1n/2QPr1PR/R1PBPq2/2k1n2R b - - 1 2 illegal: No possible last move
6QR/r1B1NQ1P/n5pn/1K3pPn/1R5P/2B1pr1k/3PNq1Q/1B3nnb b - - 0 1 illegal: No proof kernel
1R3rNB/1B1prB2/Q5Pb/1p2nN2/2r4p/KP2P2q/2QP1Nnr/1Rr4k b - - 0 2 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 a4 Rh5 b6 Rh1 Ba6 Na3 Bc4 Nb1 Bb3 cxb3 a3 Rh2 axb2 Rh3 Bb4 Rh1 Bf8 a4 Ke7 g4 Ke6 a5 Kd5 a6 Ke4 a7 h5 e3 f5 g6 c5 g7 b5 g5 f4 e6 f3 g6 c4 e7 c3 e8Q+ Ne7 g8N f2+ Ke2 c2 Nh3 Bh6 Na3 b1R Bb2 c1R Nc2 Nc6 Nd4 Ne5 Nf5 Nd5 Qe6 Qh4 Qa6 Rf8 a8B Rc4 Bb7 Rbc1 Rb1 Rh7 Ba1 Re7 Bc3 Nf7 Bh8 Ne5 Nf4 Qh2 Nd3 Qh3 Qc2 h4 Rg1 Rc3 Rg3 Rcc8 Rf3 Rc4 Bg2 Rh1 Bf1 Rh2 Kd1 Ra8 Kc1 Rf8 Bg2 f1R+ Kb2 Rfh1 Ka3 Rc1 Bc8 Nf4 Bb7+ Rc6 Bh1 Ng2 Rf1 Nf7 Nf2+ Kf3 Bc8 Rc4 Bb7+ Rce4 Bd5 Ne5 Bf7 Rc4 Nd1+ Ke2 Rf3 Ke1 Nf2 Kf1 Rf4 Kg1 Re4 Nf3 Re6 Ne5 Rb6 Ne1 Bc6 Ng2 Rb8 Rc8 Nd3 Kh1 Bb7 Rf8 Nf2+
2b1r1q1/n1Bk1pQ1/7N/2B1PPNp/4bp1P/b1n3RQ/n1nKP2B/4NR2 b - - 0 2 illegal: No extended proof kernel
BBr3R1/6q1/1Qn1np1r/r1Q2bQ1/N2n3p/RPN3Pp/1P2rk1P/K6B b - - 0 1 illegal: No proof kernel
1r6/5k1b/K1P2Qb1/n1Q3bR/2n2p1P/2RnNPBp/2qBN1Pp/Q2Bb3 b - - 0 1 illegal: No proof kernel
5nqN/1P2b3/1Br1n2p/4Pb2/1b1RPq2/3bRB1p/Q2RpQ1P/Nk2K2Q b - - 0 1 illegal: No proof kernel
BN3r2/1r2p1nq/r6n/3PQ2b/qNPK1RQ1/1k2pR1P/pR2P3/1r1Q2B1 b - - 0 1 illegal: No proof kernel
3Q4/qBN1KP2/B3RR2/Q1Qpp3/3Pbn1R/2r1b1P1/1qk1Ppr1/r5Nr b - - 1 2 illegal: No proof kernel
2N1rr2/1n3r1p/3P1Bp1/RK2b2q/2N5/Q2p2RB/QP1P3P/1Nrqk1nQ b - - 1 2 illegal: No proof kernel forced: bxDB
3QRR2/1NpBprbk/2P3b1/n1PR4/1Bp1Q1qB/P4nn1/1q2PnK1/7N b - - 1 2 illegal: No proof kernel
1K1bR2b/1pRp3N/1PQ3B1/1q1P1P1B/1Rnq2Nr/pQ4k1/2P1r3/B1rr4 b - - 1 2 illegal: No proof kernel forced: wxLB
Q3qRB1/1pRR2K1/2nn1PP1/1p2N3/1P2k1r1/2B2nP1/r2Np1Q1/q2N1n1b b - - 0 1 illegal: No proof kernel
K1N2Qb1/R2QnRp1/qbp1RNPB/2b4p/q3P3/b1P2nkP/1r2N3/3B4 b - - 0 3 legal: proof: d4 d5 a4 b5 axb5 e6 e4 e5 dxe5 dxe4 f3 e3 Qd3 a5 Qe2 Ra6 Qd3 Rg6 Qd2 Rg4 Qd1 Re4 fxe4 Qd5 Bd2 Qd4 Bc1 Qd8 Ke2 Ke7 g4 Ke6 b4 f5 g5 h5 h3 f4 b6 a4 b5 a3 b7 a2 b6 c6 g6 Bc5 c3 Qd5 Na3 Bf8 Nb5 Qd7 Nd6 f3+ Kd3 f2 Kd4 e2 Kc5 e1B Ne2 Ne7 Bh6 Bd2 Bg2 f1Q Bf3 Be3+ Qd4 Qd1 Rf1 Qa4 Rf2 Qd8 Rff1 Bd7 Nc8 Be8 Rf2 Bf7 Rff1 Bg1 Rf2 Bg8 Qd1 Qd3 Qd2 Kd7 e6+ Ke8 Bg4 Qda6 Kd6 Kd8 Rf7 Nd7 b8N Ne5 b7 Nf3 Nd7 Bb6 b8Q Ke8 Nf6+ Kd8 Rb1 a1B Rb5 Bb2 Ra5 Qb7 Ra7 Qba6 Qd4 Ba3+ Qb4 Bg1 Qb7 Bd4 Nd7 Ke8 Kc7 Bb6+ Kb8 Nf5 Qb2 Bfc5 Ka8 Ne7 Nf6+ Kd8 Qb8 Ba5 Nc1 Nh2 Bf5 Nd5 Q2b7 Bh7 Bg4 Rg8 Bd1 Nf3 Ne2 Re8 Be3 Bg8 Bh6 Re7 Qb5 Rb7 Qd3 Rb2 Rb7 Bc7 Nb6+ Ke7 Qc8 Kd6 e7 Ke5 Qf8 Bd8 Nc8 Bdb6 e8R+ Be7 Rd8 Bec5 Rf7 Ne7 Rd6 Ng5 Ng1 Kf4 Qd5 Kg3 Re6 Nf3 Ne2+ Kg2 Qd7 Kf2 Nd4 Kg3 Ne2+
4bR2/1qR1KP1b/1N5b/BqPpNknB/P6p/3P4/rQ1bp1RN/1n5Q b - - 0 1 illegal: No proof kernel
1b4k1/n1Q2rBR/rp1P3N/3N1p1P/p1K1B1Rb/4q2P/PRb3q1/1Q2N2b b - - 0 1 illegal: No possible last move
1BK1B3/1B4bQ/4r1Qp/1b4PR/1p1Pbn1P/1r5b/PQk1N2p/nN2rR2 b - - 0 1 illegal: No proof kernel
1n1B1NQ1/pR1nn3/qB1n1k2/PN1nn2b/P2Q4/1K3ppN/1P1r1PB1/5R2 b - - 0 1 illegal: No proof kernel
3rB2N/2B2p1Q/3kN2N/p5bb/Pr2b3/R1Q1PPp1/1qQ1b1P1/1R2Kbq1 b - - 0 3 legal: proof: c4 c5 b4 b5 d3 Na6 bxc5 e5 d4 exd4 Qc2 b4 Qd2 Qe7 Qd1 Qd8 h3 g5 Qd3 Nc7 Qd1 Nb5 cxb5 Nf6 h4 g4 Be3 Ne4 Bc1 Ng5 hxg5 Qe7 Na3 Qf6 Nb1 Qd8 a4 Ke7 g6 a5 b6 d5 c6 h5 b7 g3 b8N b3 g7 b2 g8Q d3 c7 h4 Nd7 h3 Qc2 d4 Nc5 h2 Nc3 b1B Nh3 Rh4 Nb5 Bh6 Nd6 Ba6 c8Q Bg5 Ra3 Qb6 Be3 Qb2 Qh7 Bb5 Qc6 Rd8 Ne6 Rg4 Rg1 h1Q Q6c3 Rh4 Nhf4 d2+ Kd1 Kd7 Nf5 Bd3 Nh6 Kd6 Ng6 Be4 Q2b3 Bbd3 Nh8 Qh2 Rh1 Qg1 Qa2 Rf4 Qac4 Rf5 Q4b3 Rb5 Qbc2 Rb4 Bf4+ Kd5 Bc7 Bb5 Bb6 Kd6 e3 Bc4 Q3d3 Bb5 Ke2 d1B+ Ke1 Bh5 Qdc3 d3 f3 d2+ Kd1 Rc4 Ke2 d1B+ Ke1 Qh2 Be2 Rb4 Rg1 Ba6 Bb5 Be2 Be8 Bf1 Kd2 Bfe2 Rb1 Bad3 Ke1 Qg1+ Kd2 Bf1 Ke1 Bde2 Bc7+
2rk1r2/1B3R2/1B3p1P/PK1Q1bn1/1p1pRPn1/3Q1rqP/NbN2p1B/1Q6 b - - 0 1 illegal: No possible last move
3Q4/2B2N1b/1PP1n2b/1P3N1p/1n1rQ1qB/1pp1Rp2/3r1NkP/RKB1b3 b - - 0 1 illegal: No proof kernel
1NB5/bN1Rb2p/n1Q2prb/2p3Q1/2PP3Q/3n3K/qP2RPrp/R4B1k b - - 0 1 illegal: No proof kernel
k1b5/5pP1/1QPn1b2/RNNrr1p1/3p1PnQ/B3PpN1/3b4/1B1qQKR1 b - - 0 1 illegal: No proof kernel
NbK4Q/1QB1P2P/pp1P1R2/4nR2/1rk1n1p1/6Pq/BpN3rb/2BQr3 b - - 0 1 illegal: No proof kernel
1r5b/4PPBp/3k4/n2R3R/1NQ1p2K/bB3NpP/nprP2rQ/1B1q2R1 b - - 0 1 illegal: No proof kernel
4n2q/RPRnP1bB/1P2p1rb/KB1Q1p2/6NN/B1pp1P2/r7/b3kQQ1 b - - 0 1 illegal: No possible last move, all moves rejected
1q1qR1BQ/5r1N/4K2p/1R1ppQPb/P1n1kBr1/p1R1N1P1/1bP3n1/1B6 b - - 0 1 illegal: No proof kernel
3n4/B2q1P1p/P1r1p1Pk/1r1Bn1R1/N2q1NN1/p1bbB3/KQP3p1/1RQ5 b - - 0 1 illegal: No proof kernel
R6Q/nK2p1rb/PpN1BqRn/1pp5/QB2P3/r1P1P3/kNQ3N1/q6b b - - 0 1 legal: proof: b4 g5 h4 a6 f3 Bh6 b5 axb5 Ba3 Nc6 Bc1 Ne5 hxg5 Ng4 fxg4 Bg7 Na3 Bd4 Nb1 Be3 dxe3 Ra3 Nf3 Ra7 Ng1 Ra8 Kd2 f5 Kd3 Kf7 Kd4 Ke6 Kc5 d5 a4 h5 g6 f4 a5 c6 g5 d4 g4 f3 c3 f2 g7 d3 g6 h4 g5 h3 Qc2 d2 Na3 d1N Nc4 h2 Nb2 Nh6 g8N Qd3 Kb6 Kd5 g7 c5 g6 Ra7 Nf6+ Ke6 g8Q+ Kd6 g7 Qg6 Qgb3 Rh7 g8Q Rg7 Nh3 Bf5 Ng4 Qf6 Qa4 Bh7 Rg1 h1B Qh8 Kd5+ Kc7 Ra6 Ne5 b6 Rg6 Ra8 Kb7 Ra6 Nbc4 Nb2 Nc6 Nd3 Ba3 Ne5 Bb4 Ra8 Nb2 Ra6 Nd1 Kc4 Nf4 Ra8 Bg2 f1Q Bh3 Qg1 Ng2 Qe1 Nb8 Nc6 e4 Na7 e3 Qd2 Nc6 Qc1 Ra3 Qa1 Qcb3+ Kd3 Nb2+ Kd2 Bd7 Kc1 Be6 Kb1 a6 Rd8 Nc4+ Qb2 Ra2 Rd2 Qd1+ Qc1 Rc2 Re2 Rd2 Rf2 Rd8 Ra2 Rf8 Ra3 Ra8 Ka2 Nb2+ Kb1 Bc8 Ka2 Qdc2 Qa1 Be6+
2n5/RN1rpq1R/pP2P1BP/2qpB1pb/8/2b1n1QN/1Q1P1NB1/1K2k1r1 b - - 0 1 legal: proof: g4 g5 a4 c5 b4 b5 axb5 h6 bxc5 Qa5 f4 Qa2 fxg5 Qa5 g6 Qd8 g5 hxg5 e4 d5 c4 Kd7 h4 Ke6 c6 Ke5 c5 Kf4 h5 Kg3 g7 f5 e5 f4 b6 f3 c7 Bh3 c8B Bg2 c6 Na6 c7 Nh6 g8Q Ng4 Nc3 Nc5 Qg7 Rg8 Qb3 f2+ Kd1 Ne4 Kc2 Qd6 Bf5 Ne3+ Kb1 Bf3 c8N Qc5 e6 Nd6 Bg2 f1Q Bg6 Kf2 Ne4+ Ke1 Qgb2 Bg7 Nh3 Rd8 Nef2 Rd7 Rh2 Bc3 Ra4 Nb5 Nd6 Rh8 Nb7 Nd6 Ra2 Nc8 Q3a3 Qc7 Qd6 Qc5 Qg3 Rf8 Qc2 Rf4 Bb2 Rg4 Ra1 Bb4 Be5 Bc3 Ra4 Be2 Qb2 Bd1 Rf4 a6 Rf8 Qfc4 Rd8 Qf4 Rf8 Qf7 Rh8 Na7 Ra8 Nc8 Ra7 Rh4 Ng1 Be2 Rh1 Rh2 Bf3 Rg2 Rh4 Bb4 Ngh3 Rg1 Bg2 Bc3 h6 Qe8 Rf4 Bh5 Rf7 Qf8 Rg7 Qf7 Rh7
Q1br2R1/K2P4/n1PpR1N1/qQ6/2pPBk1N/5B1p/1nbr2pP/q4N1B b - - 0 1 illegal: No proof kernel
4N1RK/1p5R/4Q1qk/pP1p1prb/3nPBbQ/1PRNB1q1/4n1rP/5B2 b - - 0 1 legal: proof: g4 c5 f4 e5 fxe5 h5 gxh5 Rh7 d4 cxd4 a3 Bb4+ axb4 Rh8 Kf2 Kf8 Kg3 d5 Kf4 f5 c4 a5 e4 g6 e6 Kg7 Ke5 g5 h6+ Kh7 b3 g4 c5 g3 b5 d3 c6 g2 c7 d2 e7 Na6 e8R Nf6 Ne2 g1Q Re7+ Kg6 h7 Qc5 Nf4+ Kh6 Rg1 Qc2 Na3 Nb4 Nc4 Qd3 Qg4 d1B Qh4+ Nh5 Be3 Rg8 h8B Qe8 Nd6 Bd7 c8Q Qg6 Ne8 Nc2 Rc1 Nd4 Rc3 Bg4 Qc6 Rc8 Qe6 Rc4 Rf7 Ra4 Bf6 Ra2 Be7 Rg2 Bd6 Qc4 Rg7 Qb4 Bb8 Qe7 Nd3+ Qg5 Kd6 Qf4+ Ke7 Bc6 Rf7 Rg7 Kf8 Qg5 Qe1 Ng3 Bbf4 Nge2 Qd7 Qh5 Qe6+ Rg6 Rd7 Qh3 Rg7 Qg3 Kg8 Bd7 Kh8 Bc6 Nf6 Be8 Rd7 Rg7 Re7 Beh5 Ne8+ Rg6 Bc7 Q3f4 Qh4 Qf6+ Rg7 Rg5 Bb8 Qf3 Bbf4 Qg6 Rf7 Rf2 Rg3 Rg2 Rg7 Qf2 Rh3 Qf3 Rg8 Qg3 Nc1 Rg1 Rc7 Rg2 Bg1 Qf2 Rhc3 Nc6 Nd3 Qg3 Bge3 Ncd4 Rh7#
n7/RPRr4/PpN3k1/3pK1bn/1QPp1Bp1/2Q1N1n1/B2Q2PN/r3qr2 b - - 0 1 illegal: No proof kernel
3B2Q1/3ppb1P/B3pr2/PKnPk2P/pRB3rR/1N4R1/1rn5/N1q1nQ2 b - - 0 1 illegal: No proof kernel
3k4/4bBq1/1ppP2PP/2QNr1r1/1pp2nQN/2Bb1N1r/1PBR3R/b5K1 b - - 0 1 illegal: Other
1NB1Rbn1/p3n1pb/5k2/1B2P2p/1NQ1rP1P/p1bK2P1/R7/qn1Q1RB1 b - - 1 2 illegal: No possible last move, all moves rejected
rB2BqR1/N3p2N/1K1P3P/3P1QQb/1k2np2/p4pnn/B2bP3/1R2b1N1 b - - 0 1 illegal: No proof kernel
2rq2q1/BRq3p1/1Q1R1NPP/p1R1N1pr/1k5p/5BPB/b1n2P2/2bK2Q1 b - - 0 2 illegal: No possible last move, all moves rejected
3nq1N1/qQp1Pb1p/2P1Rn2/R5P1/bB2Q2r/R6P/B1QN1pkp/1Kn5 b - - 1 2 illegal: No proof kernel
2r1Bb2/5p2/1pPQ1Bq1/RP1b2r1/p1PKR1p1/4nQR1/NPq1N2N/3k1q2 b - - 0 1 legal: proof: f4 e5 a4 exf4 d4 h5 g4 c5 gxh5 Nc6 dxc5 Nd4 Nc3 Be7 Nb1 Nb5 axb5 Bf8 Kf2 Ke7 h4 Ke6 e4 Ke5 c4 d5 h6 g5 c6 a5 h5 b6 h7 d4 h6 d3 Bh3 Kd4 e5 d2 e6 Kd3 e7 f3 e8R Bd6 Bd7 g4 Rh3 Qc7 Rg3 Ba3 Ne2 Bb4 Re4 Nf6 Be8 Bf8 Nbc3 Be6 Na2 Rg8 h8Q Nd5 h7 Rg5 Qf6 Rc8 h8N Qd6 Ng6 Ne3 Nh4 Bd5 Qd8 Qh6 Qd6 Qg6 Qh1 d1Q Bd2 Kc2 Bc3 Qb1 Bf6 Nf5 Qh3 Kd1 Qg2 Ne7 Ke3 f2 Kd4 f1Q Nf3 Nf5+ Ke5 Ne3+ Kd4 Kc2 Nh2 Kd2 Qf3 Qc2 Re1 a4 Re7 Rf5 Ra7 Rh5 Ra5 Rg5 Nec3 Nd1 Re5 Ne3 Ne2 Kd1 Re4
rB3b1R/1q2pkp1/2NN2Rr/2qQ1pPp/1B5Q/1PP5/1Rq1bP2/3QK2n b - - 0 2 illegal: No possible last move
3b1Rq1/P1kpN3/Pn1rQ1pQ/2BP3q/B2Q1R2/1P3R2/K2p1np1/2rq1N2 b - - 0 1 illegal: Other
3Q2Rb/qp2nRPP/3N1qB1/PP2N1r1/p2rrp2/B3Rp2/2n2K2/5NQk b - - 0 1 illegal: No proof kernel
2kQNbRK/p5PQ/5r1Q/3Bpq1r/5P2/P1N2Rpb/2P1qp2/2BR1r1n b - - 0 1 illegal: No proof kernel
n1BBK1b1/5p2/P2N2p1/1prkP1B1/q5b1/1P2p1Nq/r1RR1PQN/6Qr b - - 0 2 illegal: No possible last move
2Q1Q1K1/RRBPN2R/2P1ppb1/r3kBb1/2p5/3qbQ2/2pPP3/r1n2Nb1 b - - 0 1 illegal: No proof kernel
2BQ1R2/4rPB1/1p4K1/1N1N3R/3Q1rpP/PrQ4n/1Prn1p1p/qN1k2b1 b - - 0 1 illegal: No proof kernel
rBnk2b1/QNb1p3/q2pP1R1/Q5pK/1Bp1Q3/1P1pN2R/P2P4/1r1n1R2 b - - 0 1 illegal: Other
2b1Nn2/r1N1KpP1/1pk1PPqR/3QQ3/N3B1Rp/Bnp5/Q1P2p2/2q4b b - - 0 2 illegal: No possible last move, all moves rejected
N1RK1Q2/3p1R2/k1N4q/2pqB3/1BPrpn1R/2n1Qp2/p1PPrP2/1N3b2 b - - 2 3 illegal: No proof kernel
3R2r1/1P3rBp/1Pp3p1/R2NK1pP/P2Q2B1/3NN3/pb2nn2/krBQ1b2 b - - 0 1 illegal: No proof kernel
4B1NB/1RbR1Qp1/2p1rNP1/q2pN2p/b2PBp2/2P2q2/Q2k3P/Kn4b1 b - - 4 6 legal: proof: f4 h5 a4 Rh6 g4 e5 d3 b5 axb5 a5 g5 Raa6 Kf2 e4 Bd2 e3+ Kg3 exd2 Kf2 Rh8 f5 Rah6 gxh6 Nc6 Qc1 Ne5 Qd1 Ng6 fxg6 Bd6 Nh3 Be7 Ng1 Bf8 Ke3 Ke7 Kd4 Kd6 Kc3 Kd5 b4 f5 Kb2 Kd4 e4 Ke3 h7 d5 d4 f4 e5 a4 b6 c6 e6 Qd6 b7 Qe5 b8N Ba6 b5 Bc8 c3 Qg5 b6 Qg3 b7 Nf6 e7 Bf5 e8B Bd6 Bd3 Bc7 Be4 Qf3 Qc2 d1Q Nd7 a3+ Ka2 Qdf1 b8Q Qb5 Nd2 Qa5 Qb7 Bg4 Kb1 a2+ Kb2 Rf8 h8B Rf7 Rb1 Re7 Ka1 Re6 Qa7 Bf5 Rb7 Bg4 Bd3 Ne4 Nf6 Bf5 Ng8 Bg4 Rb8 Bf5 Rd8 Bg4 Rd7 Bf5 Nb3 Nd2 Nc5 Nb1 Ne4 Bg4 Nef6 Bf5 Qb3 Kd2 Bc2 Bd3 Qa3 Bb5 Be4 Ba4 Qf8 Qg2 Qf7 Qf3 Kb2 a1B+ Ka2 Qg4 Qa8 Bb2 Nf3+ Ke3 Rg1 Bc1 Ne5 Qf3 Ka1 Ke2 Rd1 Be3 Rd2+ Ke1 Rb2 Bg1 Rb7 Kd2 Qa6 Qg4 Qc4 Qf3 Qa2+
n1b5/2NBnr2/2QnB2k/B2b4/KP3P2/p1R2pNQ/PR2qP2/1rbNq2r b - - 0 1 illegal: No proof kernel
1bNKb1kB/1QpQ3P/qb3Rp1/2P1P1P1/1r2N2r/nn1Q4/r1RB4/q2B3n b - - 0 1 illegal: No possible last move, all moves rejected
1n1qn3/1p6/2NBRr2/kP1Qb3/2rPNp2/n1PK1PQ1/R1Qbr1N1/1B3b1q b - - 0 1 illegal: No proof kernel
3rqbR1/1BP1Q3/N2B1npn/NqQ2nk1/4p3/P3r1R1/3KPRP1/q1Qb3r b - - 0 1 illegal: No proof kernel forced: bxLB
qQ6/1nBnPpK1/1b2R1P1/2qR4/1k1r3r/NN1Rpr1B/b2QPPqb/5B2 b - - 0 1 illegal: No proof kernel
2b1N1QK/3BrQB1/1qp2R2/BP4p1/PNr5/2P1n3/n2bknPR/q4rNb b - - 0 1 illegal: No proof kernel
3N1B2/rn4p1/BN1p2P1/n1Pk1qb1/2r4R/B1rP2R1/1rPrQ1bQ/3Qn1K1 b - - 0 1 illegal: No proof kernel
4Nr2/6rp/qR1Rp2B/1nQ1P2K/3P3N/nbN4P/b2R1bPQ/bbkB2r1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 f4 gxf4 axb5 Be6 Qc2 Bf5 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 b4 Ke5 e4 Kd4 d3 f5 b6 c5 b5 a5 e5 c4 h3 c3 d6 a4 d7 a3 b7 c2 b6 a2 Rh2 Nc6 b8R Nh6 b7 Nf7 Qd2 Na5 Ba3 c1R Qd1 Nd6 Qa4+ Nac4 Nc3 Qa5 d8N Nb5 Be2 Ra7 Nf7 Be6 Qc2 Qa6 Bb2 Nca3 Nd6 Bb3 Nc8 e6 Bd1 Bc5 Nd6 Rf8 Ne8 Bb6 Rb1 a1B Rh1 Bc5 Rc8 Bb6 b8Q Rg7 Rc6 Bc5 Kf2 f3 Qa7 f4 Qf7 Bb6 Qg6 Ba7 Qg3 Bc5 Qh2 Ba2 Kf1 Ke3 Rd6 f2 Nf3 Bb6 Nh4 Bc5 Qa4 Kd2 Qd4 Bb6 Qc5 Ba7 Na4 Bb6 Bd4 Ba7 Rb4 Rb1 Nc3 Kc1 Ke2 f1B+ Kf2 f3 Rb2 Be2 Rd2 Bf1 Ke3 f2 Ke4 Be2 Be3 f1B Bh6 Bf3+ Ke3 Be4 Rb6 Bf5 Kf4 Be2 Re1 Bf3 Re3 Bfd5 Rf3 Bg6+ Kg5 Bdb3 Rd6 Bf5+ Kh5 Be4 Qc8 Bf2 d4 Rb2 Re3 Beb1 Qc5 Rc2 Rdd3 Re2 Rd2 Re1 Rf3 Rh1 Rf7 Rf1 Rb7 Rg1 Rbb6
1n2R3/Q1q2p2/3N1Q1n/PKp4n/1NQ1b1kr/1BP1PPnN/1Brr2R1/2n3b1 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 Qh4 Ba3 Qf6 Bc1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 b5+ Kd4 c5+ Kd3 g5 a4 d5 h6 d4 c3 g4 h5 b3 e3 g3 h7 g2 h6 b4 Kc4 d3 e6 d2 e7 b2 e8N b3 Ne2 g1N Ng7+ Kg4 Nf5 Bd6 Kb5 Qc7 Nf4+ Ne2 Rh2 Bb7 Nh3 Be4 Na3 b1N Nc2 b2 Nb4 Bf4 Qe1 d1R Nd6 Ng3 Bc4 Rd2 Bb3 Nh5 Qf1 Rc2 a5 Nd2 Qc4 b1N Bb2 Nf1 Ra4 Nfg3 Rg2 Nd2 Bc1 Ngf6 Bb2 Rd8 h8Q Ng8 h7 Nh6 Qf6 Ra6 Ba2 Nb3 h8Q Nc1 Bb3 Rd7 Qc8 Rc6 Qb7 Rd8 Ne8 Rdd2 Qb6 Rcd6 Qa7 R6d4 Nd6 Rd1 Ra1 R4d2 Rb1 Rh1 Ng1 Rh4 Nh3 Nd3 Rh1 Nc1 Rd1 Re2 Rd5 Red2 Re5 Rd1 Qd5 Rdd2 Rh2 Nge2 Re8 Bg3 Qc4 Bf4 Rh1 Bh2 Rg1+ Neg3 Rg2 Bg1 f3+
2bnr3/pRPrq3/Qb5K/PQ1Np2N/rq2P2P/r7/Q2Br2R/k1nB3B b - - 0 1 illegal: No proof kernel
k1R3R1/b1P1nb2/1Qp4Q/1qP1PRr1/pb2Nn2/2N1rb1q/PK1B2B1/4Q2b b - - 0 1 illegal: No possible last move, all moves rejected
B2n1RK1/5pQ1/pB3P2/3q4/PrPn1nPb/2B1Q2n/k2rN1b1/2RNqNb1 b - - 0 1 legal: proof: e4 d5 h4 dxe4 b4 g5 hxg5 c5 bxc5 Bf5 Qh5 Be6 Qd1 Bc8 Ke2 Kd7 Ke3 Kc6 Kf4 Kd5 g4 e5+ Kg3 h5 Kh4 b5 f4 a6 d4 b4 a4 b3 c6 b2 f5 e3 c7 e4 f6 e2 c3 Kc4 g6 e3 Kg5 h4 d5 h3 g7 h2 d6 Bb7 c8Q+ Nc6 d7 Ne7 g8N Nd5 Bd2 Rb8 Qe1 Kb3 c4 Bc5 Nc3 b1N Bg2 Nf4 Ne7 Na3 Ned5 Nc2 Rc1 N2d4 Nd1 Ka2 Bc3 Rh3 Qg3 e1B Ne2 Bb6 Qf3 Bh4+ Kh6 Bc5 Re1 h1N Kg7 Rh2 Qh3 Qa5 d8B Nf2 Bb6 Nd8 Kg8 Bc6 Qg3 N2h3 Qf5 Ba8 Qg6 Qb5 Qg7 Qd7 Ng1 e2 N5e3 Qd5 Nf1 Rb7 Qe3 Rb8 Bc7 Rb4 Bb6 Bb7 Nf2 Bc6 Red1 e1Q Ne2 Qf5 Bh1 Bg2 Rd3 Qd5 Nd1 Nd4e6 Qe5 Bg1 Qe3 Qf2 Rd4 Qe1 Re4 Nd4 Re8 Bf3 Rf8 Rf2 Neg3 Rd2 Ne2 Bg2 Nfg3 Bf1 Be4 Bg2 Nf1 Qb5 Bb7 Qd5 Ba8
5r2/N1KB1b2/2Qr2nB/1Q1rRp2/2pk3P/Q1Pnq3/2PrbPN1/b2Bq2R b - - 0 1 illegal: No possible last move, all moves rejected
bR3Q1N/5pr1/1Bq2bP1/1p1r4/nPn4R/1n3PQ1/qPB2KQq/1N2Rn1k b - - 0 1 illegal: No possible last move, all moves rejected
rn4k1/Pb2pp1N/nr2Q1B1/B4P1K/qN1Rqb1Q/2PRP3/1bb5/5QnN b - - 0 1 legal: proof: d4 c5 dxc5 h5 b4 a5 g4 axb4 gxh5 Qa5 Kd2 Qb6 Ke1 Qd8 a4 g5 h4 b5 f4 d5 Kf2 g4 Kg3 b3 e3 b4 h6 b2 h5 b3 Kh4 d4 c6 d3 a5 g3 a6 g2 c7 d2 a7 Qd5 h7 Qd8 h6 Qd7 Kh5 Qd8 Nh3 g1B Ra3 Qd4 Nc3 b1B Na2 b2 Rd3 Na6 Nf2 Bg7 Rh4 Kf8 Nb4 Bb7 Nh1 Bh2 f5 Bd6 Be2 Bf4 Qf1 d1N Bd2 Nf2 Bd1 Nh3 c8Q+ Qd8 Bf3 Ng1 Qe6 Qa5 Bg4 Qa4 Bd1 Bb8 Rhd4 Nf6+ Kh4 Nc5 Nd5 Qa3 Ba5 Ng8 c3 Nf6 Qa6 Qa4 Bg4 Bd6 Bh5 Nfd7 Rd2 Nb8 Qc6 Rg8 h8Q Bge5 h7 Nca6 Qf6 Bc5 h8N Ba3 Nb4 Bf4 Qcd6 Rg3 Ng6+ Kg8 Nf8 Rg6 Nh7 B1e4 Qg5 b1Q Qh6 Re6 Bg6 Bb2 Qe5 Rd6 Qe6 Rb6 Kg4 Qd3 Qh4 Qdc2 Rd1 Qg2+ Kh5 Bc2 R1d2 Qe4 R2d3
K7/R1b1p1pr/b1P2nN1/1N2RBP1/P1R1qQ1n/5r1b/Q1rkP1q1/B2N3b b - - 0 1 illegal: No proof kernel forced: wxDB
1k1N2bB/1B1P1prn/R1nrb1Rp/3R4/K4bN1/5b1P/BPQ2P1Q/2q3qn b - - 0 1 illegal: No proof kernel
b1Qr1r1n/pp3kn1/1bR5/1BN2nB1/1n2QQP1/PP2r2P/RK6/1BN1q2q b - - 0 1 illegal: Other
Rb2K3/4QQpq/1Prp3b/1k3P2/NN1q2Nn/RBB1n2b/3PB1P1/r1r1b3 b - - 0 1 illegal: No proof kernel
1n1Q1R2/3r2q1/BpPpn2k/1R3N1r/1n3bnn/QPBP3N/1nP1N1Q1/3b3K b - - 0 1 illegal: No proof kernel
1Bb1NR2/qb3rNb/1p1Q2P1/8/1rkp1Pb1/2Q2R1b/1PRP2n1/b1nK1BN1 b - - 0 1 illegal: No possible last move
3k2n1/bPn1nb1R/p1q1p2N/P1rbQ3/2B1P2N/P4Q2/2brB1K1/B1R1R1n1 b - - 0 1 illegal: No proof kernel
3b1n2/n1prr3/3Q2pP/1NBqp3/2PrbR2/4P2Q/BNPkb1NR/K2B3n b - - 0 1 illegal: No proof kernel
n3bN2/2N4n/R1n2prN/b5QP/1PKBRP1p/p4q1P/B4qQ1/1rk1B1q1 b - - 0 1 illegal: No proof kernel
Q1Bb3R/Q2K2p1/1qr1pN2/3bP1r1/1NRbPp2/1qB2N1P/r1k2P2/1nBn4 b - - 0 1 illegal: No proof kernel
r1qRR2R/8/1K2Pkp1/6P1/1QNp1bqn/r2N3p/1BnP1b1P/1QnBqQ2 b - - 1 3 illegal: No possible last move
RQ2Qqkr/Kp5r/1B1n2N1/RPP1pQ1B/P2n1p2/Rb3P2/1q1b4/N3rb2 b - - 0 1 illegal: No proof kernel
N4r1Q/pq1b1p1N/P1n1nb2/1Pn1p2Q/1BP3BQ/2KRPqq1/R5R1/r4k2 b - - 0 1 illegal: No proof kernel
1K2R2b/rQP1N1pb/rQ5r/2p2q1R/2Pq1BN1/1pk1P1PN/B2n2b1/R6n b - - 0 1 illegal: Other
Nnn1b3/2k1B3/1RB1b2b/KppQnP1p/B4q2/PP5Q/2P1Nr1q/R4N1r b - - 0 1 illegal: No possible last move, all moves rejected
4NqNB/2B1pP1R/p1P3QQ/RB5K/P1Q4n/rk3n2/1bb1P1p1/b3qqr1 b - - 0 1 illegal: No proof kernel
2B3b1/p2bkRp1/1p2n3/qRrrP1qq/PN5N/N6K/1P4PB/n2nQQ1R b - - 0 3 illegal: No proof kernel
N1Rrbb2/rP1prB2/1NBQ1p1k/QpK2P2/1R1n4/1PB5/rq1NP1r1/1n6 b - - 0 1 illegal: No proof kernel
2n5/p3n1p1/P2QRBP1/K2N4/B3pb1r/n3PbRr/kQPQ1qB1/r4n1N b - - 0 3 illegal: No proof kernel
7b/Rp2bBPp/1k1R1b1P/NP1QB1NB/r3Pr2/Q1pn1n2/2K1R1b1/3n2q1 b - - 0 1 illegal: No proof kernel
bNQK1B1b/r4kbR/1Q1p4/p1P1P3/3n1n1Q/B2P1pR1/2Bb1Pqn/3rN3 b - - 0 1 illegal: No proof kernel
B1N1r3/1p1ppBQ1/nnP3bR/1P2P2q/3Pbb2/2B1Q2r/2R3b1/1KRn1N1k b - - 0 3 illegal: No proof kernel forced: wxLB
bk2RB1b/4r2p/1Q2P1pP/qR1r1Q2/1pb1b3/1P1r2n1/1nN3PK/QBN4R b - - 2 3 illegal: No possible last move
6nN/1P2pbBQ/brQ1qpP1/rR2NP2/R2n3Q/2B5/B2kP1Kp/1n2b1b1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 b4 Kd7 g4 Kd6 f4 h5 Kf2 a5 d4 c5 f5 f6 b6 c4 b5 c3 b7 c2 g5 a4 b6 a3 g6 h3 Nd2 h2 Ndf3 h4 Ne5 a2 Bh6 c1B Qa4 h3 Bg7 Rh4 Ngf3 Ra5 Bg2 Qc7 Ng5 Nc6 b8B Bd2 Rhb1 h1B Rb5 Ba6 b7 h2 Be4 Bf3 Bb1 Be1+ Kf1 Be4 Ba7 Bc2 Kg2 Qd7 Qc4 Qe6 Ngf7+ Kc7 Qc5 Bb3 Nh8 Rf4 Qc3 Kd6 Qh3 Rf3 Qh7 Bc4 Bb6 Rb3 Bd8 Nb4 Bb6 Nc2 Ba7 Na3 Bc5+ Kc7 Bb4 Rb2 Bc3 Kd6 Bc2 Nb1 Bb3 Na3 Rd1 a1N Ba2 Nb3 Ra1 Nb1 Qh4 Kc7 d6+ Kb8 d7 Kc7 d5 Kd6 Rb4 Kc5 d8Q Nd4 d6 Kd5 Ra4 Rb6 d7 Bb3 Qh7 Ke4 Qe8 Ke3 d8Q Bbc4 Qc6 Bb3 Bb2 Kd2 Rb4 Bbc4 Rb5 Bb3 Qdd5 Bc4 Qe4 Bd5 Nhf7 Bb3 Qeh4 Bc4 Bh8 Bh6 Bg7 Be3 Nh8 Bg1 Kh3 Qc8 Kg2 Bf7 Bc3+ Kc2 Bd5 Qe6 Ra4 Kd1 Ba2 Kc2 Bb2+ Kd2 Bc3+
4K1Q1/n2Rn1p1/3r3p/p3RB2/1P2qr2/1Nn1P1Pn/PQNQbB2/4bbBk b - - 0 1 illegal: No proof kernel
2Bk2rN/N2P3q/1QnQ1r1p/6pP/rR2prP1/q1bnBR1b/1P5K/5B1R b - - 0 1 illegal: No proof kernel
q1n5/Np2n1R1/4BRpq/pPPQ2bn/P1rQ4/K4bB1/2BPN1Q1/2k3rn b - - 0 1 illegal: No proof kernel
1QKNB1rB/b2R3n/k2Ppp2/q7/1QnqPPN1/Pr1R3r/1pBQ4/2r2b2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 h4 axb4 hxg5 Ra5 Rh5 Ra3 Rh1 Ra8 f4 Kd7 Kf2 c5 Kg3 Kc7 d4 Kb6 e4 h5 d6 c4 d7 h4+ Kg4 c3 Kf5 c2 g4 h3 g6 h2 g7 b3 a3 b2 d5 Qc7 d6 Rh7 g5 Qc6 g6 Ka7 Bb5 b6 Nf3 Qc3 Qd2 Nc6 Nd4 Rh3 Ne6 Qd4 d8Q Ba6 Nc3 b1R Nd5 Nf6 g8B Na5 g7 Nc4 Ne3 Rb3 Ng4 Nh7 Be8 b5 Bb2 c1R Q8a5 b4 Nd8 Rb8 Rd1 h1Q Rb1 Qe1 Qb5 Rbf3 Bc3 b3 Qb4 Bb5 Ba1 Ka6 Bc3 Na5 Ba1 Bf1 Rb2 Ra8 Rc2 Rfg3 Rc7 Nc4 Bc3 b2 Rd7 Qa7 Bd4 Rb3 Bc3 Ne3+ Ke5 Nc4+ Kd5 Qd4+ Kc6 Qh4 Kc7 Qh5 Qb8 Qa5+ Kc8 Ra7 Qb4 Rb7 Qf2 Rb5 Rd3 Rg5 Be1 Rg6 Qfd2 Rg5 Bh4 Rg6 Bg5 f6 Bh6 Rg5 Bd5 e6 g8Q Be7 Bg7 Rg6 Qf8 Rg5 Bh8 Rg8 Nf7 Bd8 Bc6 Rf3 Ba4 Bb6 Nd8 Bc5 Bc6 Ba7 Ba4 Rbc3 Bc2 Rb3 Qh6 Rh3 Qg5 Qf2 Qb8 Qe3 Qc5 Qd4 Qcb4
rkNK1R2/P2Q1p2/3b1pnq/1bN4R/1nP2b1q/rBQ3Bp/2QB1P1P/5b2 b - - 0 1 illegal: No possible last move, all moves rejected
R2k4/pKR1b2N/1B2P1b1/2NpQn1r/3P1P1q/P2BQn1R/pq5B/1r2n2n b - - 0 1 illegal: No proof kernel
1BnbRnb1/2rR1q2/Q1p1p1B1/p1k5/1RNq4/2P1q3/PNK1PQ1P/1nN3b1 b - - 0 1 illegal: No proof kernel
N4nNR/2pb2K1/qP1N2p1/2P1n2p/1k2qBB1/rnB3P1/2q2RnP/Q5bQ b - - 0 1 legal: proof: e4 a5 a4 d5 f4 b5 axb5 e5 Ne2 Ra6 Ng1 Re6 Nc3 dxe4 Nb1 e3 Ra3 e4 Ra1 Re5 fxe5 Be6 Ke2 Bh3 Ke1 Bc8 Ke2 Ke7 b4 h5 d4 f5 c4 f4 e6 Kd6 g3 a4 e7 a3 e8N+ Ke6 c5 Kd5 Nh3 Kc4 d5 a2 d6 g6 d7 Nf6 Nd2+ Kc3 Ng5 Rg8 Nh7 Bh6 Bh3 Na6 Bg4 Bg7 Rf1 Nb8 Nc4 Nc6 Nb6 Qe7 d8B Nd7 Rf3 Bd4 Nd6 Re8 Rb1 a1N Na8 Qe5 Bh4 Qf5 Bf6 Re5 Qh1 Rd5 Rf1 f3+ Kd1 f2 Ke2 Re5 Bh8 Re6 Be5 Re8 Nf6 Re7 Bb2+ Kb3 Bf4 Ka4 Kd1 e2+ Kd2 e1N Ke2 Re8 Kd2 Be3+ Kc3 Ng2 Kc4 Re6 Bbe5 Bd4 Kd5 e3 Rb3 Qc2 Rb2 Re8 Rbb1 Ne7+ Ke6 e2 Kf7 e1Q Kg7 Nc6 Rb3 Be3 Bd4 Re4 Bb2 Rc4 Bc3 Qee2 Rb2 Qe4 Rfb1 f1Q Rd2 Qed1 Rc2 Bg1 Rf2 Qdc2 Re1 Qd4 Re8 Nce5 Rh8 Nf8 Ng8 Qe3 b6 Qd4 b5 Qde4 b7 Bd7 b6 Nb3 b8Q Ka3 Qa7+ Ra4 Bb2+ Kb4 Bd4 Ra1 Qa2 Qa6 Qb2 Ra2 Qa1 Ra3 Bc3+
2bBN1n1/1P2Q1b1/2p3K1/r1P3n1/p2RRp1r/r2B1PRn/Prk4N/B4Q1n b - - 0 1 illegal: No proof kernel
3bRK2/2pk1QB1/N2np1rp/2rqP2P/2P1n3/b2p1BP1/5Qb1/N2RQ1nB b - - 0 3 legal: proof: a4 g5 f4 b5 fxg5 Bg7 axb5 Bc3 Kf2 Bxd2 Kf3 d5 b4 a5 c4 f5 e4 d4 h4 f4 b6 h6 b5 d3 g6 a4 g3 a3 g7 a2 b7 Bh3 b6 Ra6 h5 Qd6 Ne2 Bb4 Nd2 Ra4 Bb2 Qd5 Nc3 Bd7 Nb3 Ra8 Qe1 Kd8 Bg2 Nc6 b8Q+ Bc8 b7 Na7 Rd1 a1B Na4 Nb5 Nac5 Ra5 Qa7 Bh3 Na6 Nf6 b8Q+ Kd7 g8B Nd6 Qaf2 Ba3 Qf8 Rc5 Qf7 Rh7 Rh2 Rg7 Bh1 Rg6 Be5 Bd4 Na1 Bc3 Qff1 Bcb4 Rb2 Bc3 Rb8 Bcb2 Re8 Bg2+ Kf2 f3 Ke3 f2 Kf4 Bd4 Qg1 f1N Qgf2 Nh2 Bh7 Nfg4 Bg7 Bf6 e5 Nf3 Bg8 Ng1 Bh7 Rg5 Be4 Rg6 Bf3 Bh4 Nc2 Nf6 Na1 Nc8 Kf5 Ne4 Bf6 Rg8 Bg7 Ncd6+ Kg6 Bg5 Qf8 e6 Kh7 Bd8 Qf7+ Be7 Bh8 Rg6 Bg7 Bc1 Kg8 Ba3 Qf5 Bf6 Kf8 Bd8 Qf7+
1NQ2R2/1kB2pbp/2q1nR1R/4BP1P/2prB2K/1rn1p2P/2n1PQ2/r1N1b3 b - - 2 3 legal: proof: h4 d5 a4 b5 axb5 Be6 c4 Bh3 gxh3 dxc4 d4 Kd7 b4 Kc8 f4 c5 Kf2 e5 Kg3 g5 h5 a5 d5 e4 d6 e3 d7+ Kb7 b6 g4 b5 c3 Bg2+ Nc6 Qf1 c4 Qf2 c2 Nc3 a4 Nf3 a3 Bb2 c1R Na2 Rb8 Be5 Qe8 d8R Nf6 Rf1 Nd5 Kh4 g3 Nd4 Bg7 Be4 g2 Bc7 Rb1 Nc1 g1B Rc8 Qd7 Rf8 Nd8 Nc6 a2 Be5 Ra8 Nb8 Rb3 Rb1 a1N Rb2 Raa3 Ra2 Ka8 b7+ Ka7 Rd2 Nc3 Rd6 Nc2 Rh6 Ra1 Bc7 Ne6 Be5 Kb6 Bc7+ Kc5 b6 Rg8 f5 Qb5 Rd1 Qc6 Rf6 Bh2 Rg1 Kb5 Rgg6 Bd6 Rh6 Bb4 Na6 Ba5 b8Q Rh8 b7 Bb4 Bh2 Kb6 Qc8 Rg8 b8B Ba5 Qd8+ Kb7 Bbc7 Rh8 Qd7 Rg8 Nb8 Bb4 Rc8 Rd8 Bhe5 Ba5 Qe8 Rd4 Qg8 Nd1 Qe8 Be1 Qd7 Nc3 Rf8 Nb1 Qd8 Nc3 Qc8+
n7/pbB3k1/P2pr1RN/R2rPB2/2pP1bn1/4rp1K/PRN2q1Q/2N2Q1b b - - 0 1 illegal: No proof kernel
1bQ2rbn/Pn2RBqN/2Np1R2/1k1K4/1p1P1B1P/pN1brp1n/PQ1R4/8 b - - 0 1 illegal: No proof kernel
1k3NrQ/2p2RPp/n1nPqB2/r1bbp3/2BRPb2/n1PK2p1/7N/3N1Q1B b - - 0 1 illegal: No proof kernel
N2BR3/p1q1r2P/R1N1bK2/1Q3n1N/n1Bkrpq1/Pq1p1Pp1/4Q1P1/1b3R2 b - - 0 3 illegal: No proof kernel
1R2N2b/2rp4/2Rrb1P1/P1nP3K/Bpq1r3/1PQpkNqN/1Q4np/BR6 b - - 0 1 illegal: No proof kernel
1K2nRq1/2P2p2/1BR2Nb1/3r1P1Q/BQ2pNP1/3rb2p/Rp2P1n1/q3bkN1 b - - 0 1 illegal: No proof kernel
Q7/1Kp4p/1NPNQRb1/BkPPb1B1/4qp2/nq2R2P/R1npr2n/1B5r b - - 0 1 illegal: No proof kernel
bb1N2RN/2pnR1rP/2R1p3/1QPB2q1/Q2P4/1NnKP3/bk1p3p/4qrB1 b - - 0 1 illegal: No proof kernel
4n2q/rNprk1Bp/1p1q4/q1pn2KP/1BP1P1b1/1PQR2bR/3Q4/N1Q2N2 b - - 1 3 illegal: No proof kernel
3b1q2/1kr1BP2/2NR3p/qbQ4K/p1B3n1/r2NQpPP/PpR2n2/R1n2N2 b - - 0 1 illegal: No proof kernel
3B4/N3pk1K/P3qp1b/1n3BRP/b1b1q1Nn/Bp3P1p/1NQ1P3/rQ3rR1 b - - 0 1 illegal: No proof kernel
2N1bQ2/RR1p4/pn1rQKN1/3qpp2/3r1QP1/2P1nBb1/3PqP2/NkB2r2 b - - 0 1 illegal: No proof kernel
5b1N/1B1ppK1B/2qr1RR1/P2n3N/b3q2B/pkqQ3p/1Q1PP1P1/2n2r1N b - - 0 1 illegal: No proof kernel forced: bxLB
K6B/1p2p3/3k1NnQ/pPpb4/1BPR1NQP/nnN3bq/P1RQ4/2nr1r2 b - - 0 3 legal: proof: f4 g5 g4 h5 e4 d5 exd5 Bh6 Bh3 Kf8 fxg5 Ke8 g6 Bg7 g5 Bf8 Bg4 hxg4 Kf2 Kd7 Ke3 f5 Kd4 g3 Kc5 f4 d4 f3 c4 c6 h4 f2 b4 f1N b5 g2 g7 a6 d6 Rh5 d5 Rh8 g6 Nd2 Qh5 Nf6 g8N Nh7 Ne2 g1N Rh2 Bg7 Nbc3 Nf8 Nf4 Be5 g7 Nb1 Qh6 Ne2 Bb2 Nc1 Rc2 Na3 Rb1 Qe8 Kb6 c5 Ra1 Nc6 Nf6+ Kd8 g8Q Qd7 Qgg6 Na5 Qg4 Ng6 Rb1 Qf5 d7 Nab3 Ra1 Rb8 Ka7 Kc7 d8B+ Kd6 Ba5 Rf8 Bb4 a5 Rb1 Be6 Ba1 Ne2 Rd1 Nec1 Rd4 Rbd8 Bb2 Rf7 Ba1 Rd7 Ka8 Qd3 Nh3 Bg3 Nf4 Qf1 Bb2 Qh3 Ba1 Ke5 d6 Bd5 Bb2 Rc7 d7 Kd6 d8Q+ Rd7 Ng8 Rf5 Ba1 Re5 Nf6 Re1 Qc8 Rd8 Qd1 Rf8 Qd2 Rf7 Qg4 Rh1 N6h5 Rf5 Nf6 Rd1 Nfe2 Rf3 Nf4 Rff1 Re4 Qh2 Nce2 Qh3 Nh7 Rf2 Bh8 Rh1 Nc3 Rd1 Rd4 Rff1 Nf6
4b2R/K1B1B1p1/pNp3P1/1Br3Nn/1q4QQ/P4bb1/Rp2QP1P/bk2n2r b - - 0 1 illegal: No proof kernel
b2qr2b/1pbN1B2/3Q3R/1P2NpBp/R2PrP1Q/n1b2p1K/1Bn4P/3kQ3 b - - 1 3 illegal: Other
1B1QQR2/pp1K2n1/1N1Rn1b1/1B2r3/PQbN1pPr/qbNkb3/1P3p1P/8 b - - 0 1 illegal: No proof kernel
7K/1P1R1p1b/1R3k1N/1p1rpPqq/2n2R1B/Q2NQ3/rP1pP1rn/1B1nB3 b - - 0 1 illegal: No possible last move, all moves rejected
1k2Q2b/Rp1N1np1/3P1Br1/qQpq2nB/1Q2p3/2n5/1PP1PK2/1r1Br1RN b - - 0 1 illegal: Other
1k6/p1bKpp1n/PrB2r1B/Q3P3/3Bq1n1/n1N2P1p/r1R1N2P/N1n2RQ1 b - - 2 4 legal: proof: b4 c5 bxc5 d5 c4 dxc4 g4 h5 Qb3 h4 Qd1 Bf5 Nc3 Bg6 Nb1 Bh5 gxh5 Qd3 Nf3 Qd5 Ng1 Qd8 d4 Kd7 Kd2 Kc8 Ke3 b5 Ke4 g5 a4 h3 a5 c3 h6 g4 c6 b4 c7 b3 f3 c2 h7 g3 d5 b2 a6 g2 d6 Nd7 Kd5 Nb8 e4 Nc6 Na3 b1N Ne2 g1N Bh6 c1R Ra2 Ne5 Nc2 Rb8 Na1 Rb6 Rc2 Nf6+ Kc5 Rg8 h8B Neg4 Qe1 Nh7 Bd4 Rg6 e5 Na3 Qg3 Rf6 Qg2 Kd7 c8N Rd1 Kd5 Rd2 Qf2 Qe8 Qe3 Kd8 d7 Bg7 Kc5 Kc7 Nd6 Qa8 Ne4 Kb8 N4c3 Qe4 Qf2 Rg6 Qg2 Bf6 Qf2 Bh4 Qe1 Rgf6 Qc1 Ka8 Qb1 Bf2 d8Q+ Rb8 Qa5 Rbb6 Ng3 Kb8 Bb5 Be3 Bc6 Ne2 Qg1 Nc1 Nge2 Na2 Rc1 Rdb2 Rc2 Nc1 Qf2 Ra2 Rf1 Bd2 Qg1 Qd3 Nb1 Bb4+ Kd5 Bd6 Nbc3 Bc7 Ba8 Rbe6 Kc5 Qe4 Bd5 Bd6+ Kc6 Bc7+ Kd7 Rb6 Bc6
N2nb2N/1p2K3/1P1p1Q1B/pBQpPr1q/1B3Q2/b1pP2b1/1Rn3Pk/1r3R2 b - - 0 1 illegal: No proof kernel
Kn4b1/n1p1NpbQ/2RB4/2Pp1PPk/qN2r1R1/3b1B1p/1B1R1pP1/1Qr5 b - - 0 1 illegal: No possible last move, all moves rejected
4R1q1/R2k4/1p3Kp1/PP1Np1R1/bQbN1B2/p1bpBQ1r/2P1P1n1/2nr1B2 b - - 0 1 illegal: No proof kernel
1NNqbb1Q/3p4/1p3p1p/b1Q2r1B/1PNPpP2/4r2R/1R2nn1P/1Q3KBk b - - 5 6 illegal: No proof kernel
1Rr2b1N/1bP3PB/4qk2/B2p1NRp/3PqQpK/1nrpQRpP/8/4Q2n b - - 0 1 illegal: Other
5Q1r/qPRp1R1p/B2PpQbp/1Knq3N/1p3N2/3BN3/kPr4P/2B1bn2 b - - 0 3 illegal: No proof kernel
R2KRq1k/p1B1RPPn/2p2Bb1/4Qp1p/1qrbBQp1/6rN/P4Pn1/7N b - - 0 1 illegal: No possible last move, all moves rejected
KBQ1N1Q1/1n1bB3/R3R3/1q1p4/pPnP1qp1/2Nkp2p/P2qPbB1/5Rr1 b - - 0 1 illegal: Other
2RBK3/r1bp3p/P1BPNkp1/3b1qp1/1N2Rp1P/Q1q2RP1/r6Q/b4Bn1 b - - 0 1 illegal: Other
2k2B1Q/pRppQ2B/1b5p/p2PB2P/nP3q2/NKQrNn2/PRr4p/b7 b - - 1 3 illegal: Other
3bq2n/n3pR2/p2Qk3/Prpp3B/N1qP2b1/1RR5/2PBPB1r/QNqb1K2 b - - 0 1 illegal: No proof kernel
K3n2b/1N1p4/Rrp2q2/pkBR1N1p/2PPbpnP/2rQp3/Q1b1NP2/5BQ1 b - - 0 1 illegal: No possible last move, all moves rejected
2BkR3/5B1n/R1K1P1qP/2n3Nq/P3rP2/1rB2n1B/4nbQ1/Nr4nB b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 f4 axb4 fxe5 Be7 Bd2 Bd6 Bc1 Bf8 Nd2 f5 Nb1 f4 Qd5 f3 Kd1 b6 Qd3 f2 Qh3 Bb7 Qxh7 Bf3 gxf3 Kf7 Be3 Ke7 Bc1 Ke8 Kd2 d5 Kd3 g5 Kd4 b3 c4 b2 e4 g4 h4 b5 f4 b4 h5 b3 e6 g3 e5 g2 c6 Bd6 c7 Ra6 c8B Bb4 h6 Qd6 c5 Kd8 c6 Be1 Qc2 Nf6 Nh3 g1N Bd2 Ra3 Bc3 Na6 Nd2 b1R Bg2 f1N Ng5 b2 Nb3 Re8 Qf2 Nc5 e7+ Kc7 Qe2 Ng3 Bch3 Nh7 Be4 Qg6 Qg2 Ra7 a3 Rb7 Ra2 Rb5 Na1 Rb3 Rh2 Rd8 e6 N3e2+ Ke5 d4 e8B d3 Bf7 Kc8 c7 Rd4 Bc6 Ra4 Kd6 d2 Be4 d1Q+ Kc6 Bf2 Bd5 Nf3 Rh1 Re4 Rg1 Qc1 Rd1 Nfg1 Rd4 Qf1 Ra4 Qd1 Ra7 Rc1 Ra6 b1N a4 Nd2 Rb2 Ndf3 Rd2 Rc4 Be4 Rcb1 Rd7 Qd3 Re7 Qh5 Bd5 Qdg6 Qg4 Ne1 Bh1 Nef3 Qg2 Re4 Kd5 Kb7 c8B+ Kb8 Re8 Kc7 Re7+ Kd8 Kd6 Rf1 Kc6 Rfb1 Re8#
7Q/pn1q1PR1/k1nR1PN1/4Pbr1/1Bb2BRn/4PR1q/R7/K3N1rr b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 g4 Ng8 gxf5 Be7 Bg2 Ba3 Bf1 Bf8 c4 h5 b4 Ba6 Bh3 Bc5 Bg4 Bb6 c5 hxg4 cxb6 Bc8 Kd2 g5 Kc2 d5 Kb2 Kd7 f4 c5 h4 g3 b7 Kc7 b6+ Kc6 b5+ Kd7 h5 g2 f6 d4 f5 g4 f7 g3 f6 d3 h6 c4 h7 d2 Nf3 g1R Ra2 c3+ Ka1 g2 Rh3 c2 Nh4 Na6 b8R Ne7 b7 Kc7 b6+ Kc6 Na3 Rg8 h8R Nc5 Rf3 Rg5 Rg8 Bf5 Rg7 Qd7 Rbg8 Rh1 b8R g1N b7 Kb6 Rbd8 Ka6 b8B Nb7 Qe1 d1B Bd6 Nc6 Ng6 Rc8 Bf4 c1Q+ Nb1+ Ba4 Qh4 Qa3 Bb4 Bb3 Nd2 Bc4 Qh8 Rb8 Ne4 Rc8 Nf2 Rb8 Nd3 Rc8 Rg3 Nf3+ Ne1 Nh4 Rf3 Ra8 Rde8 Rgg1 Re6 Rf8 Rd6 Ra8 Ne7 Rb8 Rg4 Rd8 R8g7 Rg8 Rh7 Rg5 Ng6 Qe7 Rg7 Qd7 Ba5 Qd3 e3 Qf1 Rd5 Qg2 Rd6 Qh3 Bb4+
2N1Rkr1/QP3b2/b1b2N2/2P1PP1B/2pbB1r1/6q1/NN1K2Nn/2R2rb1 b - - 0 1 illegal: No proof kernel
r3NNNR/2KPP3/1n3R1r/4B2k/3p2n1/p2NNb2/PP3Qbr/4q1qB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 d4 e5 fxe5 b4 c4 b3 c5 Bd6 cxd6 Nc6 Qxb3 Nxd4 Qc2 Nc6 Qd1 Nb8 Kd2 g5 Ke3 f5 Kd4 Kf7 Kc5 a5 e4 f4 h4 g4 d7 d4 h6 Kg6 h7 f3 e6 f2 e7 c6 Kd6 g3 e8N c5 h5+ Kf7 e5 c4 h6 Kg6 e6 a4 e7 a3 Qe1 c3 Nh3 g2 Nf4+ Kg5 Nd3+ Kg4 Nd2 g1Q Bg2 f1B Nc4 c2 Qf2 Na6 Bf4 c1R Be5 Rc2 Ne3+ Kg5 Bf3 Bg2 Rf1 Qa5 Rh2 Qd2 Bb7 Nc5 Kc7 Nf6 Bc6 Rg8 h8N Na4 h7 Ng4 Ng6 Nb6 h8N Qe1 Nf8 Rg6 Rh7 Rh6 Nf7+ Kh5 Rh8 Rd2 Bd5 Bb7 Bc6 Rh7 Nh6 Rc2 Ng8 Rh6 Qe2 Rd2 Rf6 Bf3 Qf1 Rh2 Qf2 Bg2 Bf3 Bd5 Be2 Bc6 Bf1 Bgf3 Bg2 Bcd5 Bh1 Bg2 Rh7 Bdf3 Rh8
2bb3B/Q2b2n1/q1n4b/np1B1R1N/PPrRP3/1R6/K1R1Ppk1/1R5N b - - 0 1 legal: proof: c4 a5 d4 d5 g4 e5 f3 h5 gxh5 e4 fxe4 b5 b4 c5 Qd3 a4 Qb3 axb3 cxd5 c4 Bh6 Ra7 Bg5 Rc7 Bc1 Rc5 dxc5 Be6 Bb2 Bh3 Bc1 Bc8 Kd1 Kd7 h4 g5 a4 f5 h6 b2 Kc2 g4 h7 g3 h5 g2 c6+ Kd6 h6 Ke5 d6 c3 Kb3 f4 c7 f3 d7 c2 Rh5+ Kd4 Nd2 Ke3 Rf5 Kf2 Nh3+ Kg3 Rb1 g1B Nf4 f2 Bh3 Ne7 Ka2 Nbc6 Nh5+ Kh2 Bg4 Kg2 Nf1 Bh2 Nfg3 Qe8 d8Q Qg6 Nh1 Bd7 c8R Bc7 Qe8 Bd8 Qf7 Rg8 h8R Qf6 h7 Bh6 Rd5 Nf5 Rd4 Ng7 Be6 Rf8 Bg5 Re8 Rf8 c1N+ Ka3 Re7 h8R Nb3 Bd5 Nba5 Ka2 Qg6 Bf6 Re5 Bb3 Rc5 Bd5 Rc4 Be5 Qd6 Qe7 Qe6 Rf3 Qf6 Rf8 Qd6 R8f5 Qe6 Re1 Qd6 Rb3 b1B+ Ka1 Ba2 Reb1 Qc5 Bf6 Qa7 Qc5 Qa6 Qa7 Ne8 Bh8 Ng7 Kb2 Rc3 Qc5 Ne5 Bg8 Bc6 Ra3 Be6 Qa7 Bb7 Rc7 Bd7 Rb3 Bbc8 Ka2 Rc1 Rcc3 Nec6 Bd5 Rc2+ R3b2 Rc1 Rcb3 Rc4 Rc2
3B1B2/N1Bn2Bb/1P1p2r1/1p6/Q1P1Pb1R/5N2/nbnPK1kB/Rq3n2 b - - 0 1 legal: proof: f4 h5 g4 e5 fxe5 b5 gxh5 a6 a4 c6 axb5 Bc5 b4 Bd6 b6 Bf8 e6 d6 b5 a5 Bh3 Ra7 Bf1 Rc7 b7 Rd7 exd7+ Ke7 b6 Rh7 Bg2 Rh8 Be4 Rh7 Bd3 Rh8 Bb5 cxb5 h4 Ke6 c4 Ke5 e4 Kf4 h6 Kg3 h7 g5 h5 f5 h6 g4 Nf3 a4 Rh4 f4 Ra3 Ne7 Ng5+ f3 Qc2 Kg2 Rh5 g3 Rd3 a3 Qa4 f2+ Ke2 f1N Bb2 a2 Nc3 a1N Nf3 Bg7 Na2 Nd5 Be5 Nb4 Rh4 Rg8 h8B Qf6 d8B Nac2 h7 Bf5 Ra3 Nd7 b8B Qg5 Bf4 Bb2 Bbc7 Rg6 Bg7 Qf6 h8B Qc3 Kd1 Qb3 Bf8 Qd3 Bhg7 Qb3 Nc1 Na2 Nd3 Bc1 Bde7 Re6 Nde1+ Kf2 Nh2 g2 Qa6 g1B Nd3+ Kg2 Nf3 Bh7 Nde5 Rg6 Bed8 Nab4 Qa4 Be3 Ra1 Qb1 Ke2 Bb2 Bh2 Bf4 Nc6 Na2 Na7
b2R3q/Nk3P2/Bbr1b1Nr/2Q1pR1n/NN2b3/1BPP1P2/4r2p/5N1K b - - 0 1 legal: proof: g4 d5 h4 g5 b4 c5 e4 a5 bxa5 f5 exd5 Nc6 Ba3 Nd4 Bb4 cxb4 gxf5 g4 Qe2 Ne6 Qd1 Ng5 hxg5 Be6 Nc3 Bd7 Nb1 Bc8 a4 Kd7 c3 Kc7 g6 b5 f6 h5 g7 e5 d6+ Kb7 f3 b3 Kf2 g3+ Kg2 h4 a6+ Kc6 a7 b4 a5 b2 d7 b3 a6 Rb8 a8N Bb7 a7 Bc8 Nh3 Qe8 d8N+ Kd7 Nb6+ Kc7 Ba6 Bc5 Na4 Bb6 Nc6 Be6 Nf4 Rh6 Qg1 Rc8 Qc5 h3+ Kg1 g2 Ng6 Qd8 a8B Qf8 f7 Nf6 g8N Nh5 N8e7 Qh8 Nb4+ Kb8 Rh2 Rc6 Nc8 Kc7 Na7 Kb8 Na3 b1B Nc4 b2 Ne3 Be4 Rd1 b1B Nf1 Bba2 B8b7 Bad5 Bc4 Kc7 Bba6 Kb8 Rh1 Kc7 Kh2 g1R Bb3 Rg4 Rg1 Rg2+ Kh1 Re2 Rg5 h2 Rf5 Kb8 d3 Rd6 Re1 Ba8 Ra1 Rc6 Ra2 Re1 Rg2 Re2 Rg4 B4d5 Rd4 Be4 Rd8+ Kc7 Bac4 Kb7 Ba6+
1R5R/NP2n3/1q6/4qBQ1/r2pB1Nn/1PbR3R/PP2r1Rp/k1K2nn1 b - - 0 1 illegal: No proof kernel
5Bqk/3B1rN1/P3Rpr1/3K1N1P/2rb1N1N/QN1Pb2p/bb1R2P1/2r5 b - - 0 1 illegal: No proof kernel
2B5/1bPpPn1n/2b1pQ1B/1Nk2B2/1Brp2rP/1b6/1KN1B1P1/1R1Rr3 b - - 0 1 illegal: No proof kernel
n1NK2b1/R2prNpN/5prP/n5P1/5Qpn/2RB1P2/6kP/3b1NNB b - - 0 1 illegal: No possible last move
nKN2nr1/2Rq2Q1/B3R2P/B4Pnb/2P2r1b/3bP1N1/5qr1/B3BBrk b - - 0 1 illegal: No proof kernel
2Kb4/2R4q/P2B1BbB/Q1bP3b/n1NPBBkq/3r1n2/1N1qP3/2nR3r b - - 0 1 illegal: No proof kernel
NN2kb2/1B1b4/Prq1PK2/P1r3N1/2rrNB1n/RnRbnQ2/5P2/2b1N3 b - - 0 1 illegal: No proof kernel
B2rn1qR/r1PPN1r1/1B1q2Q1/2N2bbN/2PR4/3r1NqP/5qNk/1Kn5 b - - 0 1 illegal: No proof kernel
rNrB4/nn2P2B/2bpRQP1/PNnk1B1n/7q/b3P2R/b3B3/B1nK4 b - - 0 1 illegal: No proof kernel
R3K3/p1RB2P1/qb2b1kr/N7/rr2B3/1nPNr1r1/QP2B1BP/Bn2b3 b - - 0 1 illegal: Other
3Qkr2/1R3q1n/1B2B1r1/4NbRP/1nN2b1p/1K1BPnB1/1P1PB2r/3n1b2 b - - 0 1 illegal: No proof kernel forced: bxDB
1N3q1R/1P1bN1np/bP2nPrr/1kbN2P1/r7/Q2N4/2N1Knn1/BB3R2 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kd7 g4 c5 f4 e5 d4 a5 d6 c4 d5 h3 f6 a4 g5 c3 b6 h2 b7 c2 f7 a3 b5 a2 b6 e4 f5 e3 f6 e2 Qd3 Be7 Na3 Nc6 Bb2 c1N Nh3 Nh6 Nf2 Ra4 Nc2 Rg8 Qa3 Nf5 Nd3 Ncd4 Bg2 Bf8 Rf1 h1B Be4 Bg2 Kd2 e1N Bc3 Be7 f8N+ Ke8 Ng6 Kd7 Kd1 Ne6 Ngf4 Nfg7 Bf5 Qf8 Bg6 Nb3 Ke2 Nd2 Rc1 Ne4 Ba1 Bh3 Bf5 Nf2 Rd1 Ng2 Rd2 Ke8 d7+ Kf7 d8N+ Ke8 d6 Kd7 Nd5 Rh4 Be4 Rh6 Nc6 Bf5 Bc3 a1R Rdd1 Ra2 Ba1 Bh3 Qb4 Ra4 Qa3 Nf5 Rd2 Rgg6 Rdd1 Nfg7 Nb8+ Ke8 Rc1 Bd7 Rce1 Bb5 Rc1 Ba6 d7+ Kf7 d8N+ Ke8 Ndc6 Bc5 Nce7 Bf5 Nbc6 Kd7 Nb8+ Kd6 Qb3 Nd8 Qa3 Bd7 Nce3 Nde6 Rc4 Bb4 Rc8 Bc5 Nc2 Bab5 Ne1 Qf7 Rh8 Qf8 Bf5 Ba6 Be4 Rc4 Nc1 Ra4+ Bd3 Rc4 Bb1 Ra4+ Kf3 Bb4 Nc2 Kc5 Nd3+ Kb5 Ke2 Bd6 Rg8 Bc5 Rh8
kBq5/5KQ1/nq2Pb2/1P2N1b1/2bp1bBN/5nPr/3Br1P1/1BR1bRB1 b - - 0 1 illegal: No proof kernel
nqb1K3/3N1B1r/R7/RQBP3P/5B1q/P1nB1pbq/q1P2n2/1k3rBN b - - 0 1 illegal: No proof kernel
r4q2/3K3N/1PPRrrN1/1nbQN1r1/5p1N/Pb1R2Bb/3NP2q/1k1B2n1 b - - 0 1 illegal: No proof kernel
4qk1R/1B3P2/q2r3b/4NKpP/nPqN1P2/1RrnBb2/4rNr1/Q4NN1 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 c5 Ke3 e5 Ke4 g5 f4 a5 h4 g3 b4 g2 d4 a4 h5 a3 b6 a2 d6 c4 f6 c3 b7 c2 d5 Ne7 Ba6 Bg4 Be3 c1Q Nd2 Ng6 Nf1 Rh6 Rh3 Nd7 b8N Bf3+ Kf5 e4 Bb7 Nc5 Na6 Na4 Nc5 Rc8 Nd3 Rc3 Nf2 Ne5 d7+ Kf7 d6 Qe8 Rg3 Nd3 d8N+ Kg8 f7+ Kg7 d7 Rd6 Nc6 Qc2 Bd2 e3 d8N e2 Nd4 e1R Be3 Re2 N8c6 Qb3 Rc1 a1Q Ne5 Qc4 Rc2 Qaa2 Qa1 Qa6 Rh3 Q2c4 Ra2 Kh7 Rc2 Bh6 Rd2 Kg7 Rg3 Qcb5 Rc2 Kf8 Rh3 Rb3 Rc6 Rc3 Rg3 Qc4 Rb6 Rd8 Rg6 Rd5 Rg7 Rd6 Rh7 Rec2 Nge2 g1R Rh3 Rg2 Ng1 Ra2 Rh2 Qd5 Ne4 Rg3 Rb2 Qdc4 Rb3 Re2 Nf2 Rg2 Rh8+
4rNR1/1P6/3Rp3/4PRRq/KQ3b2/P2q2rb/P1k4n/BRrrNnBn b - - 0 1 illegal: No proof kernel
1n1RbkBN/Np5B/1n1RP2r/P1qn3P/Bb5K/2rPB3/3BQ3/3q1qq1 b - - 0 1 illegal: No proof kernel
b1q2NN1/PQ3Nq1/B1q1kP1r/B3p2q/nP1R2RN/PN4br/5n2/K6b b - - 0 1 illegal: No proof kernel
r1q1k1nr/pB1N1r2/B4n1r/1q1P2Pb/P1n5/1B3Bb1/1P2B3/2K1QRNR b - - 0 1 illegal: No proof kernel
Kb6/p1B1n3/n1PN3Q/1qR1q2N/RbB2P1k/RR1P2rb/1P3bR1/3rq3 b - - 0 1 illegal: No proof kernel
n1r1R1rk/KQrP1n2/4n2N/2B3pq/1B3PPB/1BP1br2/3n2N1/3R1B1q b - - 0 1 illegal: No proof kernel
R3R1n1/Bnr1Pb2/B1R1Nk1b/3R2N1/4q2q/1P1P2Pb/Kpr1p1R1/2r4Q b - - 0 1 illegal: No proof kernel
K2nBB1R/p2k1p2/1P1b4/P3P1r1/Nbr5/bQn1nP1R/2q2N1N/1Nq3N1 b - - 0 1 legal: proof: g4 b5 h4 e5 c4 e4 cxb5 e3 h5 Qh4 dxe3 Na6 e4 Nb8 e5 Qd8 h6 Ba6 Bg2 Bb7 Be4 Bd5 Bd3 Be4 Bc2 Bg6 Bf5 Bh5 Bg6 hxg6 gxh5 Qg5 Qd4 Qe7 Qd1 Qd8 Kd2 c5 Ke3 d5 a4 d4+ Ke4 c4 b4 g5 e6 d3 e7 g4 h7 g5 b6 g3 b7 c3 a5 c2 f3 g4 h6 d2 b5 g2 b6 g3 Rh3 Kd7 Kd5 Qc7 e4 Nc6 b8N+ Ke8 Nd7 Rc8 Nc5 Nd8 Na4 Bg7 Bb2 c1B Qb3 d1N Be5 Bf8 Bg7 Qc2 Kd6 Nc3 Ra2 Rb8 Kc7 Nf6 Ra1 Rg8 h8N Bd2 h7 Ng4 Ng6 Ne3 h8N Bc1 Ra2 Ba3 Nf4 Ra8 Bh6 Rg5 Nd3 Bg7 Ng6 Bd4 Rb2 Bdc5 Nge5 Bcb4 Ng4 Rb8 e5 Rb7+ Kc8 Rc7+ Kb8 Rc4 Ka8 Kd7 Ndf2 Bd6 Ne2 g1Q Bf8 g2 Nh2 Qgc1 Ra2 g1B Rb2 Qg6 Rd2 Qf5 Rd4 Bb4 Rdh4 Qfc2 Rh8 Ba3 Nh1 Bf2 Ng1 Be1 Nf2 Ne4 R8h6 Beb4 Rh8 Nc3 e8B+
1n1R1N2/r7/RKP1qRp1/4Rnb1/1Q3p1R/nP5B/k1PbnP1n/4BrN1 b - - 0 1 legal: proof: e4 b5 g4 h5 d4 hxg4 a4 d5 axb5 c5 dxc5 d4 Ra6 Bb7 Ra1 Bd5 exd5 Rh3 Bc4 Rh6 Bf1 Rh8 Kd2 Kd7 Kd3 e5 Kc4 f5 h4 a5 c6+ Kd6 b3 a4 b6 e4 Kb5 e3 b7 a3 h5 a2 h6 g3 h7 d3 Qd2 f4 Qe1 e2 Na3 g2 Be3 d2 Qc1 e1N Rh4 d1N Rb1 a1B Nh3 g1N Rh5 g6 Re5 Ne7 Bd2 Qc8 Kb6 Ne2 Ng1 Ne3 Bh3 Bc3 Ra1 Nf3 Be1 Qe6 Qd2 Nh2 Ra2 N7f5 Nb5+ Ke7 Qd4 Ra7 Ra6 Bd2 Nc7 Bh6 d6+ Kf6 d7 Bg5 d8R Nc4+ Kc5 Na3 Kb6 Re8 h8R Re7 Rh4 Rd7 Qa4 Ke7 Nd5+ Kd6 Rf8 Rh7 Nf6 Rh5 Nh7 Rh6 Re3 Kd5 Qb5+ Kd4 Re5 Kc3 Rf6 Kb2 Qb4 Ka2 Nf8 Rh7 Ra4 Na6 b8R Rh5 Rd8 Nb8 Ra6 Rhh7 Qc5 Rhd7 Qc4 Rd3 Qd4 Rg3 Nf3 Rg1 Qb4 Rf1 Ng1
1B6/Rr2QN1p/2P3N1/2n1B1B1/2b2KbP/pB1b1b1q/1k1rP1Pn/2b2B1R b - - 0 1 illegal: No proof kernel
bR2k2b/b7/1B2Br2/nbn1B3/1BP3PB/1RNpP1K1/1Qr3Pp/1q2N1r1 b - - 0 1 illegal: No proof kernel
1B5r/1B2B1bb/3KN3/pPBR1PNR/rp3n2/1k1Prq2/n1P3b1/3QBr2 b - - 0 1 illegal: Other
4n3/5bbn/1P5r/Kp2p3/1BQ1qNPn/B3bBPk/1NnP1R2/BB1R1r2 b - - 0 1 illegal: No proof kernel
2r2br1/2R1Pp1N/1N1bpP2/Bnn2nn1/2QN4/P1q1k3/KPB2N2/2bN2R1 b - - 0 1 illegal: No possible last move
1b2bn2/q1p2r2/RP3P2/2QNN2K/3PRr1B/r3P1r1/Npk1N1Bb/2N4n b - - 0 1 illegal: No proof kernel
NbQ1R1q1/1k1Br3/N1b4K/1N2P2P/N3nR2/1p1P1P2/1N1p1r1r/3nrqB1 b - - 0 1 illegal: No proof kernel
2Q2q2/nRRb1q2/2BPrPkb/3p2nP/1rp5/Pn1n2R1/2K1NR2/1NB2R2 b - - 0 1 illegal: No possible last move, all moves rejected
B3R2r/2r1N1Kn/1p2bnbP/R2PR3/PBq2N2/k1qbPQ2/2p5/b2R3R b - - 0 1 illegal: No possible last move, all moves rejected
qB4KN/5N1r/pPB4p/qP1BP2k/R1B2b2/2R1q3/1P1nb2Q/r2qBn2 b - - 0 1 illegal: No proof kernel
RBbq3b/n2Pk3/2PR2nP/3N1Kb1/R1b1p1R1/4P3/1RQ3qp/b1NBr3 b - - 0 1 illegal: No proof kernel
4B3/1n1P3B/k2nPrPp/1rB2B2/1rQq1NN1/pr5P/1R1rB1q1/RK1b4 b - - 0 1 illegal: No proof kernel
3bn1bN/qP1n1nrB/p3B3/P2p4/3Pqb1Q/1kB1R3/2b2P2/K1B1RNB1 b - - 1 2 legal: proof: g4 b5 h4 g5 hxg5 f5 gxf6 a6 c4 bxc4 e4 Ra7 g5 Rb7 Bg2 Rb5 Bf1 Rf5 exf5 Bh6 Rh3 Bg7 Rh1 Bf8 b4 Kf7 a4 e5 d4 c5 Kd2 h5 Kc2 e4 Kb2 c3+ Ka2 e3 a5 e2 b5 e1Q b6 c4 b7 c2 Ba3 c1N+ Kb2 h4 Bd6 h3 Ne2 h2 Nf4 Rh7 Ra3 c3+ Ka1 c2 Qg4 Qe4 Nd2 Be7 Qh4 Nd3 Bh3 c1B Re1 h1B Nf1 Ne5 Rae3 Qb6 Ng6 Rg7 Bb4 d6 Bc3 Bd8 Bg4 Qa7 Nh8+ Ke8 g6 Kd7 f7 Kc6 f8B Kb5 f6 Kc4 f7 d5 Be6 Nbd7 Bc5 Kb3 f8B Nf7 Bfd6 Ngf6 Ba3 Ne8 Bh2 Bf3 Bg1 Bd1 Bab2 Bd2 Bc1 Bc2 Rd3 Bf4 Rde3 Nc5 Bf5 Be6 Bh3 Rh7 g7 Nd7 g8B Rg7 Bh7 Nfd6 Ng3 Bg8 Be6 Nf7 Nf1
1B4B1/K2pqq1Q/1nBnP1P1/B1bRq3/1N3r1N/5pR1/1rPP2B1/1q1k2n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 bxc5 exf4 a4 b4 Nf3 Ba6 Ng1 Bb5 axb5 Qf6 Rh3 Qe7 Rh1 Qd8 Kf2 Ke7 g4 Ke6 e4 Ke5 c6 h5 b6 f5 g6 a5 b7 a4 g5 a3 c7 h4 c8B f3 Ke3 b3 g7 h3 g6 f4+ Kd3 a2 Kc4 b2 Kb5 f2 Rh2 Qe7 Kb6 Rh4 Qe1 Na6 b8B+ Nc7 Qe2 Nh6 g8B Nf5 Kb7 Nd6+ Kb6 Nd5+ Kc5 Ra3 Rg2 h2 Rg3 h1N Bb7 Nb6 Nc3 b1Q Nd5 Rb3 Bg2 f1Q Bc6 Rb2 Nb4 Nf2 Qd3 Nh3 Nf3+ Kf6 Qe2 Ng1 e5+ Kf5 Qb5 Rg4 Nh4+ Kg5 Qc4 Qf3 Qe2 Qb3 Qe3 Qbf7 e6 Kh5 Qc3 f3 Qg7 Rf4 Rh3 Kg4 Qh7 Rb3 Ba3 Rb2 Rh1 Kg3 Rh3+ Kf2 Rg3 Nb7+ Kb5 Ke2 Ka6 Nd6 Ka7 Kd1 Nd5 Bg7 Bb4 Bd4 Ba5 Bc5 Nb4 Qc1 Rb1 a1Q Bb7 Qa2 Bc6 Qd5 Ra1 Qb1 Ra3 Qe4 Rd3 Qe5 Rd5
3BK2b/4P1p1/7p/bQNNbB2/P1b1R2b/1qB1P3/1rr3bP/2nkRBB1 b - - 0 1 illegal: Other
1Bq2RKb/1N1Qb2B/r4q1r/bk6/1r2bNpp/1BB5/1PBb1PPP/5R2 b - - 0 1 illegal: No proof kernel
NRr1n3/1Q1n2p1/2P3Pb/3bPR2/1r1B1PrR/Nn2q1pK/1B1p4/3k1RR1 b - - 0 1 illegal: No possible last move, all moves rejected
1R5k/1bp4r/R1qb2Nn/6q1/1RPPb1rR/p4pP1/N4P1r/3BKQBR b - - 0 2 legal: proof: e4 a5 b4 d5 a4 dxe4 h4 g5 hxg5 b5 axb5 a4 Nc3 Nc6 Nb1 Na5 bxa5 Bh3 Bd3 Bf5 Bf1 Bc8 d4 h5 c4 f5 g6 e5 b6 f4 a6 h4 a7 h3 g7 Kf7 b7 h2 b8R a3 Qd2 e3 Rb4 e2 Qd3 e4 Be3 Bb7 Nc3 Nh6 g8R Rh7 Nh3 Bd6 Na2 Qg5 Rb8 Kf6 Rab1 Kg7 Rh8 Rd8 a8R Rf8 Ra6 Rg8 Kd2 e1R Be2 Rc1 Bd1 Rc3 Ke2 Rc1 Bd2 e3 Ke1 e2 R1b2 Be4 Rb8 Rc3 Qb1 Rg3 R2b4 Rg4 Qd3 Qb5 Ng5 Qc6 Rf1 h1B Ne6+ Kf6 Nf8 Kg7 Rb3 Rh4 Bb4 Rh2 Bc5 Kf7 R3b4 Rg4 Qb1 Kg7 Qc1 Be5 Be7 Bd6 Bh4 Rh3 Bg3 Rhh4 Bh2 Rh3 Bg1 Rh2 g3 Bhf3 Kd2 Bh1 Qb1 e1Q+ Kc1 Qe2 Re1 Qf3 Kd2 Qc5 Qd3 Qg5 Qf1 Bb7 Re4 Bg2 Ke1 Bh1 Re3 Qc6 Reb3 Be4 Rb1 f3 Ra1 Ng8 Rc1 R7h3 Rh4 Nh6 Rcb1 Kh8 Bc2 Qd8 Kd2 Rg6 Qg2 Be5 Rg4 Rh5 Rh4 Ng8 Bb3 Rh1 Bh2 Rh7 Re1 Nh6 Bd1 Rg8 Rf1 Qe7 Ke1 Bd6 Rg1 Rg5 Qf1 Qe5 Rg2 Qf5 Bg1 Rg4 Rgh2 Qfc5 Rg2 Rh3 Rh2 Qg5 Rh1 Rh2 Ng6+
bKN4k/3r4/B2Pr2N/1P2P1qq/1B1pp2r/N1nNPp2/4RQ2/b1N1bR2 b - - 0 1 illegal: No proof kernel
r2k1q2/1B1pNQq1/1B2rrPB/P1nB4/1p4bR/1Npq4/1P5P/BR2b1K1 b - - 0 1 illegal: Other
4R1r1/r1pP1Pr1/nQ1bRN2/p1Pp2PK/kB2n2n/1q1BR2R/2R2Np1/8 b - - 0 1 illegal: No proof kernel
rk6/RBPp2Pq/4P1rn/3Bn3/p2PR1BQ/2NnBp2/Kb1N1p2/Br6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 bxc5 exf4 a4 b4 Nf3 Ba6 Ng1 Bb5 axb5 Qf6 Rh3 Qe7 Rh1 Qd8 e4 a5 g4 h5 c4 f5 g6 f3 c6 b3 b6 f4 c5 b2 g7 h4 c7 h3 c8B h2 g5 Ke7 c6 Kd6 g6 Ra7 e5+ Ke7 b7 Nh6 g8B Qc7 g7 Kd8 Bh3 Ng4 Qa4 f2+ Kd1 f3 Kc2 Na6 Kb3 Ba3 b8B Rh6 Ka2 Ra8 Bb7 Nc5 Bd5 Nd3 e6 Rg6 Ne2 Nge5 Re1 h1N Bg4 Ng3 Nec3 Nf5 Re4 Nh6 Ba7 Qb8 Be3 Kc7 Qb4 Qc8 Qe7 Qe8 Qh4 Qg8 Bd4 Qh7 Be3 Ne1 d4 Kb8 Nd2 b1R Bb2 N1d3 Kb3 Be7 Ra3 Bc5 Ka2 Bd6 Ra4 Ba3 Ba1 Bb2 Rb4 a4 Rb6 Ka7 Ra6+ Kb8 Ra5 Rh1 Ra7 Rb1 c7+
1K3B1R/2p3pk/RNP1N1N1/r1p1q1Pp/3Nq3/Np4b1/1PB1n2P/1q1Q3q b - - 2 4 legal: proof: c4 b5 a4 e5 d4 a5 f4 d6 e4 b4 d5 Bb7 c5 Qd7 c6 Qd8 Qd4 Ba6 Qc5 Bb5 axb5 dxc5 Kd2 Nd7 Ke1 Nb6 d6 Nd5 exd5 e4 Kd2 Qg5 Ke2 Rd8 Kd1 Rd7 Kd2 Re7 Ke1 Re5 fxe5 Qd8 Ke2 h5 g4 f5 d7+ Kf7 e6+ Kg6 b6 e3 Kd3 a4 Kc4 b3 Kb5 f4 Ka6 f3 Ka7 a3 b7 e2 b8N e1Q g5 f2 d6 a2 e7 Qe2 e8N Ne7 Nf3 Rh7 Nh4+ Kf7 Ng6 Kg8 Na3 Qc8 d8Q Nf5 d7 Qe1 Bd3 f1Q Nd6 Nh6 Ndb5 Qee2 Bf4 Qe4 Bd6 Qb1 Rf1 Rh8 Nd4 Nf5 Bc2 Kh7 Re1 Be7 Ka8 Bf6 Bf8 Be5 Re3 Bg3 Re1 Qh4 Re8 Qe4 Bd6 Nh4 Qf6 Nf3 d8N Bf2 Nc4 Ng1 Qf3 Qcf5 Nd7 Qc1 N8e6 Qfe5 Ndb6 Bg3 Ka7 Qf1 Kb7 Rg8 Qd1 Ne2 Ka7 Qfh1 Rc8 Rd8 Be7 Rd7 Rg8 Rd8 Bf8 Ra8+ Kb7 Ra7+ Kb8 Ra4 Rb1 a1Q Rc1 Qa2 Ra1 Qb1 Ra2 Rb4 Ra6 Rb5 Na3 Ra5 Rh8+
1R1r1BRk/1b4nr/RNq1np1P/p4b2/1PNb1q2/P5r1/4BPQK/n3R1R1 b - - 0 1 illegal: No possible last move, all moves rejected
QB2b1B1/r1p1bnP1/r3B3/1bq1bR2/1BBnr2R/p1P3n1/PN5P/K5Nk b - - 0 1 illegal: No proof kernel
2B1kBR1/qRp1R2p/PrP4P/4K1Rr/1b1rn3/2NQPb2/6qn/2qr1NR1 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 f4 g5 fxg5 Bc5 Nh3 Be7 Ng1 Bf8 Kd2 d5 Kd3 f5 Kd4 b5 a4 f4 c4 b3 h4 b2 g4 b4 e3 f3 e6 b3 a5 f2 c5 Ra6 c6 Qd6 e7 Nh6 h5 Rb6 a6 Nd7 g6 Nc5 g7 Ne4 g8R Qc5+ Ke5 Bf5 g5 Bg4 g6 Bf3 Bh3 f1Q g7 Qg2 Nc3 b1R Qf1 b2 Nge2 Rb5 Bd2 Qa7 Rg1 Rc5 Bc8 d4+ Ke6 d3 Ng3 Ng4 h6 Rd1 Rb1 Rh5 Bc1 d2 Qd3 Nh2 Nf1 Rh3 Ke5 Rh4 Ra1 b1Q Ba3 Qc1 Rb1 Rh3 Rb7 Rh5+ Bf5 Kf7 e8R Bb4 Rd8 Ke7 Rd5 Kf7 Re8 Rg8 Re6 Rf8 g8R Rb8 Reg6 Ke7 Rg5 Kf7 Bc8 Ke7 Rg6 Kf7 Rd7+ Ke8 Rb5 Rb6 Rf7 Ba5 Bf8 Bb4 Rgg7 Re1 Rg8 d1R Qc2 Rd4 Qd3 Rd1 Rfg7 Rb8 Rb7 Qa8 Ra7 Rb6 Rb7 Qa7 Re7+
N7/P2bB1pK/2nRB2R/1qb3r1/P1r2pP1/n2Q2B1/1B3Pk1/B1n1qNrn b - - 0 1 illegal: No proof kernel
2N4r/1Q2KBpq/b1RP4/1RpB2P1/r1B2r2/B1k3rB/2PqNPb1/1nn3b1 b - - 0 1 illegal: No proof kernel
R5n1/B5b1/1p3n1p/N3p3/1bB1B1rP/QK1Bn2P/1P2PnqR/Nn1kB1r1 b - - 1 3 illegal: No proof kernel
Br1BnbR1/2pn4/1bPPkB2/r6p/1NBp1Q1n/1b3qN1/6PP/RK1n1B2 b - - 0 1 illegal: No proof kernel
5k2/Nbq2n1n/np1RQ3/3r3P/BB2B1B1/1PPpb1K1/n2P3p/1rq2BNR b - - 0 1 illegal: No proof kernel
Br1B1Q1B/2PP2N1/pb1b2K1/nR1p1n1p/3Pq1pB/5rRb/5knP/N2B4 b - - 0 1 illegal: No proof kernel
2B1RkN1/Pbb2ppr/1qN1p3/1r1B4/4PR1p/KBnr2P1/Q5BP/5nBn b - - 2 3 legal: proof: d4 c5 dxc5 a5 f4 e6 b4 axb4 f5 Qe7 f6 Kd8 fxe7+ Kc7 Bd2 Kc6 Bh6 Na6 Bc1 Nb8 Kd2 d5 e8B+ Kc7 a4 Kd8 e4 Ke7 c4 h5 Kc2 b5 Kb3 d4 c6 h4 g3 d3 a5 d2 c5 Rh7 a6 Bd7 c7 Bc6 c8B Nh6 Bb7 Nd7 Nc3 Nb6 Bg2 Na4 Nf3 Ng4 Qe2 d1N Rf1 Nge3 Ne5 Rd8 Rf4 Rd3 Qa2 Nf1 Be3 Nf2 a7 Nh1 Bg1 Rd6 Rb1 Rd3 Ba8 Bb7 c6 Rh5 c7 Rh7 Kc2 b3+ Kc1 b4 c8B b2+ Kc2 Nb6 Ba4 Nd5 Bb3 Ke8 Rd1 b1R Nc6 Bd6 Rd2 Kf8 Rd1 Nf6 Nd5 Bc7 Nde7 Nd5 Ng8 Nc3 Rd2 Re3 Rd7 Rd3 Bc4 Rb2+ Kc1 b3 Re7 Rf2 Bd5 Rff3 Bc4 b2+ Kc2 Rf2+ Kb3 b1Q+ Ka3 Qb6 Bb3 Rb2 Ne5 Ba6 Bad5 Bb7 Nc6 Rb1 Bbc4 Rb4 Bb3 Rb5 Re8+
1rQq1b2/n1pp1P2/1r2B2B/Rnk1K1NR/1r3N1b/2PN1p2/p2P1P1N/2b1N3 b - - 2 3 legal: proof: e4 f5 a4 h5 Bc4 b5 Bf1 Bb7 axb5 f4 g4 hxg4 Bg2 Bd5 Bh3 Be6 Bf1 Bf5 exf5 Rh4 Ra2 Rh6 Ra1 Rh8 Ke2 e5 Kd3 Ke7 Ke4 Kd6 h4 a5 b4 g5 b6 a4 h5 a3 b5 g3 b7 g2 f6 g4 f7 f3 c3 g3 h6 Ne7 h7 Ng6 b6 Ne7 Qb3 Ra5 Nh3 g1B Bc4 g2 Be6 Bh2 Ng5 Bg1 Rh5 Rg8 h8N Ra6 Ng6 Nec6 Nf4 Nd4 Qb5 Nbc6 b8N Ra4 b7 Bh2 Na6 g1B b8N Rb4 Qb7 Na7 Qc8 Bg3 Nc6 B1h2 Nc5 Bh4 Ncd3 Ndb5+ Kf5 e4 Nce5 e3 Ne1 e2 Ng4 Kc6 Ke5 Kc5 Ra2 B2g3 Nh2 Rh8 Rb2 a2 Na3 Rh6 Nc4 Rg6 Rb3 Rh6 Ra3 Rf6 Bg4 Rb6 Ra5 Rb8 Ba3 Rb6 Nb2 Rb8 Ng2 e1R+ Kf5 Re6 Ne1 Reb6 Ke5 Kc6 Ne4 Bhe7 Ng5 Bh4 Bh3 Ra4 Bc5 Rc4 Bd4 Ba3 Be6 Rb4 Bc5 R8b7 Be7 Rb8 Bf6 Kc5 Bg7 R8b7 Bh6 Rb8 Nd1 Bc1 Nb2 Rc6 Bg7 Rd6 Bh6 Rdb6 Nbd3+
3NR3/n2R1npq/1BQ3Pp/P1rNRR2/b1RBp1K1/n4rpP/1b2P3/2q1k3 b - - 1 3 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 g4 Ra7 g5 Ra8 Bh3 Ke8 Bg4 fxg4 d4 Kf7 a4 Kg6 f4 Kf5 Kf2 Ke4 Kg3 b5 d6 e5 f5 c5 h3 b4 d5 h6 d7 b3 f6 b2 f7 c4 g6 c3 a6 c2 a7 Ba3 f8R Qa5 d8R Nc6 d6 Nge7 d7 Qd5 Rf5 Qg8 Qd6 Qh7 Be3 c1Q Bd4 Rf8 Nf3 Rf6 Kh4 g3 Kg4 Rf7 Re8 Nd8 a5 Nec6 Rd1 Rb8 a8R Na7 Ra2 Rb5 Qc6+ Rd5 Rd2 Ba6 Rc2 Bb5 Rc4 Ba4 Rb8 Rf8 Rb5 Nf7 d8B Nd6 Qc8 Nf7 B8b6 Rc5 Ng5+ Kd5 Ne6 Ke4 Bc3+ Ke3 Nd8 e4 Rfe5 Kf2 Qc6 Kf1 Bd4 Ke1 Nc3 b1N Rd2 Bb2 Nd5 Na3 Rb3 Ng5 Rf3 Rf6 Rff5 Nf7 R5e7 Qa1 Rd7 Qc1 Rfe5 Rf2 Rd3 Rf1 Rf3 Rf2 Rf6 Rf3 Rff5
1bn3q1/3ppk2/PN2Br2/B1p3rR/3BNrpq/B1PP4/K2Rb1P1/1Q3q1B b - - 0 1 illegal: Other
2NrR3/1Np4q/1rP3Pr/1P2nNn1/2k1pbpp/6QP/N1b1B1p1/BNR3K1 b - - 0 1 illegal: No proof kernel
1b6/1RN3q1/pPp2B1R/1nK3p1/2B1BpnQ/2q2N1B/PPPrp1br/k1B5 b - - 0 1 illegal: No proof kernel
1n1NBk1N/1pK2Q1q/B1ppP3/r1P3p1/1PpP3r/n5Bp/2R4b/2nR2BB b - - 0 1 illegal: Other
Q4q2/4RPk1/2PRNn2/N1b1Prqb/2P1NrB1/2B1rRKN/4r1p1/8 b - - 0 1 legal: proof: f4 h5 b4 c5 bxc5 e5 d4 b5 g4 f5 gxh5 a5 a4 Nc6 dxe5 b4 e4 fxe4 f5 Na7 Qe2 Nb5 axb5 a4 Qd1 a3 Nxa3 Rb8 Nb1 Ra8 Kf2 Kf7 c4 d5 h4 g5 f6 g4 b6 d4 h6 b3 b7 b2 b8N d3 h7 d2 h5 e3+ Kg3 e2 h6 e1R Qf3 d1R Nc3 b1Q Bd2 Qe8 Be2 Qd3 Ra7+ Qed7 Nc6 Kg6 f7 Qd8 Na5 Qg5 Rh3 Qd6 Ne4 Nf6 Bc3 Rd4 Re7 Ra6 Bd1 Re2 c6 Rg8 h8R Qb4 h7 Kg7 Qf1 Bf5 Rh6 Bg6 Nh3 Bh5 Qf5 Qc5 Qc8 Rb6 Qa8 Rb3 Nef2 Rf4 Ne4 Nd5 Rd6 Nf6 Rd3 Qb4 Rf3 Rf5 Re8 Bc5 Re7 Rd8 Rf8 Rdd2 h8N Rd4 Rd8 Qb8 Rd6 Qf8 Ng6 Ra3 Ba1 Rae3 Ngf4 Re1 Kg2 g3 Bc3 R1e2+ Rf2 Re1 Bg4 R3e2 Kf3 g2 Kg3 Re3+ Rf3 R1e2 Ne6+ Kh7 Nd2 Rdf4 Ne4 Kg6 Nc7 Kg7 Ne6+
k5N1/2P5/B1N2BPQ/B1pq1B2/2q2P2/1nbbn1bP/KNR2n2/4R1b1 b - - 0 1 legal: proof: b4 c5 bxc5 b5 e4 f5 exf5 Qb6 a4 Qc7 axb5 Qd8 c4 d6 h4 Qb6 c6 Kf7 c5 Na6 Qc2 Qd8 c7 Ke8 c6 Nb8 Qc5 dxc5 Na3 g5 Rh3 h5 Re3 a5 Kd1 g4 Nc4 Bb7 Rea3 Na6 Ke1 Qb8 Rg3 Qa7 Rf3 Qb6 Rh3 Rd8 Na3 Rd6 Re3 Rg6 Rh3 Rg5 hxg5 h4 Rh1 h3 Nb1 h2 Nc3 Ba8 Nb1 Rh3 gxh3 Bb7 Kd1 e5 Kc2 g3 Kb3 a4+ Ka2 a3 c8B Kd8 d4 Kc7 f4 Kb8 d5 e4 f6 e3 f7 e2 g6 e1Q d6 g2 c7+ Ka7 d7 Be7 f8Q Qc6 d8B Bh4 b6+ Ka8 Qh6 Qc3 Bf6 Ne7 Bf5 Nd5 Bd2 Nb8 Ba6 Bg3 Nf3 g1B Ne5 Ne3 Nc4 Qd5 Be1 Qc1 Ba5 Nc6 Nd2 Nd4 Ne4 Nb3 Nb2 Qcc4 Re1 Bc6 Re2 Bb5 b7+ Ka7 b8N Ka8 Bac8 Ba6 Nc6 Bb5 Kb1 Ba6 Rc2 Bb5 Nd1 a2+ Kb2 a1B+ Ka2 Bc3 Ba6 B1f2 Re1 h1N Nb2 Bg1 Be5 Nf2 Nf6 Qb4 Bd4 Bd3 Ng8 Qbc4 Bf6
rB2nR1n/1NRBK1p1/7R/1q1P1b1b/k1RP2n1/4Np1q/P5P1/1NQ5 b - - 0 1 legal: proof: d4 d5 f4 e5 fxe5 Ba3 bxa3 h5 c4 b5 cxd5 h4 Qd3 a6 Qe4 Ra7 Qxh4 Rb7 a4 b4 Qh7 Rb5 axb5 axb5 Kd2 Kd7 Ke3 c5 Ke4 b3 Kf5 b2 e4 c4 h4 c3 h5 b4 h6 b3 e6+ Kc7 e5 Kb6 Nf3 Ka5 Nh4 c2 Bf4 c1N Bb5 Nf6 Bd7 Nd3 e7 Nf2 e8N N2g4 e6 Nc6 e7 Nce5 Rc1 Ng6 Nd6 Ne8 Rc4 f6 Ke6 f5 Be5 f4 Nhf5 f3 Ne3 Rf8 Qg8 Nh8 h7 Qb6 Qf7 Qb5 Qf4 Rg8 Rc7 Ka4 Nb7 Rf8 Qh6 Rg8 Qh1 Rf8 Qc1 Rg8 Na3 b1B Bh2 Bg6 Nb1 b2 Be5 Nd6 e8R Bh5 Rf8 Ne8 Bd6 Nf7 Ke7 Nh8 Nd2 b1Q Be5 Qf5 Nb1 Nf7 h8R Qh7 Bd6 Qf5 Rh6 Qh7 Bc6 Bf5 Bd7 Nh8 Rc8 Qg6 Bb8 Qgc6 Rc7 Qc2 Na3 Qf2 Rb1 Qg3 Rb3 Qh2 Rbc3 Qh3 Nb1 Nef6 Rf7 Rd8 Rf8 Ne8 Ba7 Ra8 Bb8 Bf7 R3c6 Bh5 Rc4#
6N1/PrP4k/3br3/4Q1RK/3b3R/bqP1n3/1BRNRnrP/1B1b2Nn b - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 gxh5 c5 dxc5 f5 b4 axb4 e4 Qb6 exf5 e4 Nf3 Qf6 Ng1 Qe5 fxe5 Ke7 Bh6 Kf7 Bc1 Ke8 Kf2 Kf7 Kg3 g5 Kg4 Kg7 a4 b5 h6+ Kh7 c6 d5 c3 e3 c7 e2 e6 e1B e7 d4 e8N d3 a5 b3 a6 b2 a7 d2 Kh5 b4 f6 b3 f7 g4 Bh3 g3 Bg2 Ne7 Qg4 d1N Be4+ Nf5 Bd3 g2 Bc4 Nf2 Kg5 Rg8+ Ng7 Nd7 Ba6 Nc5 Ra2 Nce4+ Kh5 Ba3 f8R Ne3 Nd2 b1R Bd3 b2 Nf5 Rg7 Qg5 Ng3+ Kh4 Rg6 Ne7 Bg4 Qe5 Re8 Ng8 Re6 Rf5 Bh5 Rg5 Bd1 Ngf3 g1B Bc2 Ra1 Be4 b1Q Rc2 Qb3 Bb2 Rb1 Bd3 Nh3 Bf5 Bgf2 Rg1 Nh1+ Kh5 Bg3 Rg2 Bef2 Bd3 Bg1 Re2 B1f2 Ng1 Bf4 Qe4 Bfd6 Qd4 Nf1 Qc5 Bd4 Qe5 N3f2 Qa5 Kh8 h7 Kg7 h8R Ne3 Rd5 Rg2 Rg5+ Kf8 Bg6 Kg7 Qe5+ Rf6 Ba1 Nd5 Rc1 Qa2 Kh4 Rb7 Bb2 Ne3 Rhh5 Qb3 Bb1+ Kf7 Rc2 Re6 Rf5+ Kg6 Rhg5+ Kh7 Kh5 Bab4 Rf4 Ba3 Rh4
K2k4/1Rr2rNP/1b6/3b2b1/3rrQB1/2P2n2/n1qNP1PB/BN1Rq2B b - - 0 1 illegal: Other
1B1R1Bb1/6rP/1P1B2br/B4N1P/k1nr1q1Q/Nr2P3/3q1nK1/3nR1N1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 h4 Ne7 g3 Bf5 h5 Bc8 Bg2 Ng8 Be4 Be7 Bg6 Bh4 gxh4 hxg6 Kf2 Kd7 b4 c5 d4 f5 h6 a5 d6 c4 h5 c3 b6 Kc6 e6 Kb5 d7 a4 e7 a3 e8N f4 b7 f3 d5 a2 d6 c2 Kg3 g5 Na3+ Ka4 b5 f2 b6 f1B Nf3 g4 Nb5 g5 Qd5 Ne7 Nh2 Nbc6 b8B Na5 Ba3 c1Q Nf3 Qf4+ Kf2 g3+ Kg1 g4 e3 g2 Bb2 Bc4 Kf2 g1N Qc6 g3+ Kg2 Bg8 Rd1 a1R Bc3 Ra3 Ng7 Nh3 Rhe1 Nd5 Nf5 Nc4 Ba5 Nf2 Ng1 Nc3 Qe4 Rb3 Na3 Ra6 Rd5 Ncd1 Qe7 Rh7 Qh4 Rg7 h7 Rg6 Re5 Rh6 Re8 Ra7 Rf8 Rc7 Re8 Rc5 Rf8 Rd5 Re8 Rd4 Rf8 Qe7 d8B Qd7 Bdc7 Qd8 d7 Bb7+ Nf3 Be4 Bd6 Bd3 Ng1 Bc2 Ng7 Bg6 Nf5 Qc7 d8B Qd7 B8e7 Qd8 Kf1 g2+ Ke2 Qd7 Re8 Qd8 Bf8 Qd7 Nf3 g1R Rd8 Rg4 Kf1 Rg3 Bde7 Qdd6 Ng1 Qb4 Bc5 Qd2 Bcd6 Be8 Bde7 Rg7 Bed6 Bg6 Kg2
1q1Nn2B/1R4q1/qb6/qQr2P1B/P1Pb4/5n1K/qR1b1NPB/N5Bk b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 b5 c4 f5 exf5 b3 d3 c5 Qg4 b4 Qd1 Ba6 Ba3 Bb5 cxb5 c4 Bb2 c3 Bc1 Ra7 Ke2 Rc7 Ke1 Rc4 dxc4 Qa5 Rh4 Qb6 Rh1 Qd8 f4 Kf7 Kf2 d5 Kg3 e5 a4 h5 f6 Ke6 b6 Kf5 f7 d4 b7 c2 g6 b2 g7 e4 Bd3 b3 Rh4 Bc5 f8B Nc6 b8B Ne5 Nf3 Nf6 g8N Bb6 Qg1 Ne8 Nc3 b1Q Bfd6 b2 Rh3 h4+ Kh2 Kg4 f5 e3 Qd1 e2 Qh1 e1B Bb4 Bd2 Ne1 Qa2 Ba5 b1Q Re3 h3 Bb2 c1B Re2 Qe7 Rf2 Qg7 Ne7 Rg8 Bf1 d3 Ne4 Rh8 Bd4 Bb2 Nc2 Bbc3 Be3 Bcd4 Nc6 Rh6 Nd8 Rc6 Re2 Rc5 Bc3 Qb4 Rae1 Qa5 Nf2+ Kh4 Rb1 Qa6 Kg1 Kg3 Na1 Qa5 Rb2 Qa6 Re1 Qa5 Be2 h2+ Kf1 Qa6 Reb1 Qa5 Qg1 h1Q Bh5 Qh4 Qh1 Qhf6 Kg1 Qe6 Rb4 Qc8 R1b2 Qca6 Rb5 Be1 Bc7 d2 R5b4 d1Q Bd6 Ba7 Rb7 Qdb3 Bb8 Bd2 Bd6 Rc8 Bc7 Bdb6 Bd6 Rc5 Bed4 Kf4 Kh2 Qbb5 Kh3 Qbb3 Bf8 Nf3 Qb1 Qbb4 Be5+ Ke3 Bh2 Ke2 Qe4+ Kf1 Qc6 Qbb3 Qb5 Qbb4 Bhe5 Kg1 Bfd6 Qbb3 Bcd4 Qbb4 Nd1+ Kh1 Bg1 Qc3 Beh2 Qce5 Be7 Qb8 Bf6 Rc8 Bfe5 Bd4 Bf6 Rc5 Bfe5 Bb6 Bf6 Qg8 Bh8 Qg7 Nf2+
1q3q1B/B5Qq/N4RR1/3PPPN1/1b1br2B/Rb3b2/1P1kR3/1K1n1r1r b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 Nc6 Bg2 Nce7 Bh3 Nf5 gxf5 Qg5 Bg4 hxg4 Qb3 Qe7 Qd1 Qd8 e4 Kd7 h4 g5 d4 c5 Kd2 a5 Kc2 c4 e6+ Kd6 b6 c3 e7 g3 e8R a4 h5 g4 h6 f3 b7 g2 b8R a3 h7 g3 Qd2 a2 Qg5 f2 Rb5 f1B Na3 Nf6 Rb3 Bc4 Nb1 Ra4 Nd2 Bb7 Ra3 Bb3+ Kd3 c2 Re5 Ng4 Nh3 g1Q Kc3 g2 Qg7 Qb8 Ng5 Qh2 Rg1 Nf2 Re8 Nd1+ Kd3 Rg8 h8B Qh7 Re7 Ba8 Rf7 Be7 Re1 g1R Re2 Rf1 Rb1 a1Q e5+ Kc7 d6+ Kb6 d7 Kb5 d8B Bf3 d5 Re4 Bb6 Bb4 Ba7 Rd8 Rf8 Rd6 Rf7 Rh6 Rf6 Qa2 Ra1 Rhh1 Raa6 Qa5 Ra3 Qad8 Rg6 Qf8 Raf6 Rf4 Nde4 Rfh4 Nc5 Re4 Be3 c1B Bd4 Be3 Na6 Bf2 Bc3 Bd4 Kd2 Kc4 Kc1 Kd3 Be1 Bbc3 Bh4 Bb4 Rf2 Ke3 Kb1 Kd3 Rh2 Ke3 Re2+ Kd3 Re1 Kd2 Re2+
2qrN3/B4R1q/b1Rn2PQ/N7/K1BP1N1P/N3Pk1q/n1B1q1r1/1r1n4 b - - 0 1 legal: proof: a4 b5 axb5 e5 c3 d5 d3 d4 cxd4 e4 dxe4 g5 g4 h5 f4 Bh6 Nc3 hxg4 Nb1 g3 Qa4 g4 Qd1 Bg5 fxg5 Qd7 Kd2 Qd6 Ke1 Qd8 Kd2 Ke7 Kc2 Ke6 Kb3 c5 h4 f5 e3 a5 e5 Kd5 g6 Ke4 e6 g2 e7 c4+ Ka4 f4 e8B g3 b4 f3 b6 f2 b5 c3 b7 c2 b6 Nd7 b8N Nc5+ Kb5 a4 b7 a3 Rh2 a2 Nc6 Nh6 b8N Nf7 Rh1 Nd3 Nb4 Ba6+ Ka4 Qc8 Na3 Nd6 Nh3 g1Q Qh5 g2 Bb5 Rd8 Bc4 Qh2 N8c6 g1R Qh6 Kf3 Na5 Rb8 Nf4 Qhh3 Nbd5 Rg2 Nf6 Rb1 Bd2 c1N Ne8 Rh2 Bb4 Rg2 Bc5 Nb2+ Kb4 Nd1+ Ka4 Qhf5 Rh2 Qh3 Bfd3 f1Q Bc2 Qe2 Bb6 Rb5 Rb1 a1Q Ba7 Na2 Rc1 Rb1 Rh1 Qb2 Re1 Qbb7 Rg1 Rf2 Rg5 Rg2 Rf5 Qh7 Rf7 Rb6 Rb1 Rb8 Rb6 Rb7 Rc6 Rb2 Rfc7 Rb1 Rf7
5k1N/B1P4q/B6r/qrNPqQ1b/R2n1NB1/bP1q1N1K/3r2P1/1b4R1 b - - 0 1 legal: proof: f4 b5 h4 e5 c3 g5 hxg5 exf4 Qa4 b4 Qd1 b3 axb3 c5 Rh3 d5 Rh1 Nc6 Ra5 Nd4 Ra1 Nb5 c4 Nc3 cxd5 c4 Rh6 Na4 Rh5 c3 Rh3 c2 Rh1 Nc3 bxc3 Bh6 Ra5 Bg7 Ra1 Bf8 Kf2 f5 e4 h5 d4 a5 e5 h4 d6 a4 e6 h3 e7 f3 Kg3 h2 d5 a3 c4 a2 g6 f2 g7 Nh6 g8N Rb8 c5 Qa5 c6 Rb5 Qg4 f4+ Kh3 f3 c7 Nf5+ Nh6 Nd4 Be3 c1R Ne2 Bf5 Rg1 Rd1 Nd2 Bb1 Nf4 Rh7 Be2 f1Q Qf5 f2 Bg4 Qd3 Nf3 f1B Bf2 Rd2 Be3 Rg7 Nf7 Be2 Nh8 Rg6 Bf2 Nc2 Bb6 Nd4 Ba7 Re6 Nhg6 Rf6 d7+ Kf7 d8N+ Kg8 e8B h1Q+ Kg3 Ba3 Nh8 Kf8 Nb7 Qh7 Nc5 Bd1 Bc6 Be2 Bb7 Bd1 Qg5 Rh6 Ba6 Bbc2 Rc1 Bb1 Rc4 a1Q Ra4 Nc2 Qh5 Qe5 Kh2 Nd4 Ne1 Bf3 Kh3 Be4+ Nf3 Bg6 Qh4 Bh5 Qf6+ Ke8 Qe6+ Kf8 Qf5+
bKn4R/1bn2P2/rkBb4/N3b3/4QN1P/1bPr1P2/nb2NBN1/RR6 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 cxd4 a4 Rh7 axb5 a4 Bg5 Qa5 bxa5 Rh6 Bc1 Rh8 Ke2 Kd8 Kf3 Kc7 Ke4 d5+ Ke5 g5 h4 g4 f6 d3 a6 g3 c3 a3 a7 d2 f7 g2 h6 d4 h7 d3 Ne2 g1B Rh3 a2 Rg3 Na6 Kd5 e5 Qc2 d1B Ba3 d2 Bc5 e4 Bg2 e3 Na3 Bh2 Nc4 Bd6 Qe4 Bb3 b6+ Kb7 Rh3 Bhe5 Rhh1 d1B Rb1 a1B Rg1 Rb8 a8N Bb2 Nc7 Ra8 Ne6 Bdc2 N6f4 Ra7 Nd4 e2 Rh1 e1N Nde2 Nd3 Rhc1 Kb8 Kc6 Nc7 b7 Ne7+ Kb6 Ra8 Ne3 Rd8 h8R Nb4 Bf3 Bd3 Neg2 Na2 Ra1 Ba6 Rcb1 Bh3 Be3 Nc8+ Kc6 Be7 Bc5 Rd3 Bd4 Bc5 Be3 Ka7 b8N Bf5 Bd4 Bg6 Kd7 Kb6 Nc6 Bf5+ Kd8 Bfe6 Na5 Bed5 Be3 Bab7 Kd7 Ra6 Kd8 Ba8 Bd4 Ne7 Kd7 Ng8 Kc8 Ne7+ Kb8 Bdc6 Qf5 Bcb7 Bc6 Nc8 f3 Ba3 Bf2 Bb2 Be1 Bca3 Qe4 Bad6 Bf2+
1n5K/1q1B1rNR/2q1b1BP/2n1N2q/P2q2P1/4NB2/kPQ4n/1B1rn1R1 b - - 0 1 illegal: No possible last move
B1nBq1R1/1K3P2/N1r1k1RR/qP1nPr2/1Pn1r2Q/q7/1NB2q1R/3r4 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 g5 a4 Na6 axb5 Nb8 h4 gxh4 e5 Bh6 Qb3 Bg7 Qd1 Bf8 f3 f5 d6 Bg7 Qb3 Bb7 Ra6 Be4 Qd1 Bf6 exf6 e5 Ra4 Bb7 Ra1 e4 Be2 e3 Bf1 Be4 fxe4 Qd7 Qa4 Qc8 Qd1 Qd8 Ke2 Kd7 Kf3 c5 g4 a5 b4 h5 d4 f4 e5 a4 Ke4 e2 Kd5 e1R g5 c4 f7 c3 g6 f3 g7 f2 Qe2 h3 Qd2 h2 Bg2 f1N Nf3 c2 Na3 h4 Qf2 h3 Ra2 Ra6 Bg5 c1Q Nd2 Nc6 Nb3 Na5 Nc4 a3 Rg1 h1Q Qh4 h2 Nc5+ Kc8 Rb2 a2 d7+ Kc7 Bf3 a1Q Rf2 Qcc3 Nb2 Rh5 Rg3 Qb8 d8R Qg1 Rd6 h1R Rh2 Qf2 Rh6 Qe8 Bf6 Re6 Na6+ Kd7 Bg5 Qd3 Kc5 Rb6 Ba8 Ne7 g8B Nc4 Bh7 Qa5 Bg6 Qc3 Bc2 Nfe3 Bf6 Nc8 d5 Qg8 d6 Qca3 Rg1 Rf5 Rgg6 Ke6 d7 Rhf1 d8R Nd5+ Qd4 Re3 Qh4 Rd1 Rf8 Rd6 Rd8 Qf8 Re8+ Qe7 Rf8 Qe8 Rfg8 Rd7 Kc6 Rd6+ Kb7 Rc6 Bb1 Re2 Bc2 Re4 Bd8+
1R2B3/6Rq/bp2Pn2/4n3/1rbN1K2/R1BbP2r/N1B1PPq1/1nQ3Bk b - - 0 1 illegal: No proof kernel
1Bb1N2r/4QqRp/2r2r2/1N2P1n1/R1P2bkB/KP5b/1B1P1n1q/2R1R3 b - - 0 1 illegal: No extended proof kernel
1Nr5/4P2R/KnPN2r1/1B2pbk1/RRr1b1P1/P2B2b1/q2RBQ2/4qn2 b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 g5 h4 a4 hxg5 a3 bxa3 Ra5 a4 Ra6 a5 Ra8 f5 e6 fxe6 d6 e7 Kd7 e4 Nh6 e5 Ng8 e6+ Kc7 Bf4 Kc6 Be5 dxe5 Ke2 b5 e8B+ Nd7 Kd3 Kd5 g4 h5 a6 f5 a3 h4 e7 Ke6 c4 h3 g6 Kf6 c6 b4 a7 f4 g7 b3 c7 f3 c5 h2 Kc4 b2 Kb5 f2 Qd4 Rh6 Nd2 b1B Ne2 Rg6 Nc4 Nh6 g8B Bf5 Rd1 Be4 Rd2 Kg5 Nd6 Nf5 Bc4 Nb6 Bd3 Ne3 Bc6 Bcf5 c8R Qe8 Rb8 Qf7 Ka6 Bh6 Bcb5 Qa2 Rb7 Rc8 a8R Kf6 Qb2 Bf4 Nd4 Bg3 Nc6 Kg5 Bfe2 f1Q Nb8 Qe1 c6 Nf1 Qd4 Rgg8 Qf2 Rg6 Rg1 h1R Rg2 Rhh8 Rh2 Rhd8 Rh7 Rd7 Ne8 Rd5 Nd6 Rc5 Bbc4 Nd7 Rb4 Nb6 Bb5 Rc3 Kb7 Rc5 Raa4 Rc4 Ka6
3k4/1bNbN2N/rr1q4/3B1BbK/1P1PN2n/1Prp1PRB/n3Rr1Q/8 b - - 0 1 legal: proof: d4 c5 dxc5 b5 h4 d5 a3 g5 hxg5 b4 axb4 d4 Bf4 f6 e3 d3 Be5 Qd4 exd4 fxe5 g4 a5 g6 h5 g7 h4 c6 h3 g5 h2 g6 e4 c7 e5 Qe2 e3 Ra2 a4 Nh3 e4 Na3 Rh6 Ng5 Bd7 c8N Nc6 Nh7 Kd8 Rg1 h1B Nd6 Rc8 Rg3 Nge7 g8B Nf5 g7 Be7 Bd5 Nh4 g8N Bg5 Nab5 a3 Bh3 Rf6 Qh5 e2 Nc7 Rf4 Kd2 e1R Ne7 Rb1 Ke3 Bg2 Ra1 a2 c3 Rg1 Re1 a1R Re2 Rgb1 Qh6 Ra6 Bf5 Ng6 Qh2 Nh4 Bh3 Rc1 Bf5 Rb8 Bh3 Rbb6 c4 Na5 c5 Nb3 c6 Rc3 Bf5 Nc1 b3 Bh1 Kd2 e3+ Ke1 Na2 Ne4 Bc8 Bh3 Bb7 Kf1 Bf3 Kg1 Bg4 Kf1 Ng6 Kg2 Bd7 Bf5 Nh4+ Kh3 Rf3 Kg4 Rf4+ Kh5 Rf3 Rd2 e2 Rc2 e1Q Re2 Qd2 Bh3 Rf6 Bf5 Qf4 f3 Rg6 Nb5 Qd6 c7+ Ke8 c8B Kd8 Nc7 Re6 Bc6 Re5 Bh3 Rec5 Bf5 Rc2 Bd5 R5c3 Re3 Rg2 Re2 Rf2 Bh3 Bb5 Bce6 Bd7 Bef5
bb2n2N/1R3N1K/2Rr2Pn/6pr/R4P1P/B1RB1P2/r1r1kq2/1B3b1Q b - - 0 1 legal: proof: g4 g5 a4 h5 gxh5 b5 axb5 c5 e3 Qc7 d3 Qd6 d4 Qg6 hxg6 cxd4 Qf3 f5 Qd1 f4 exf4 Rh7 Bh3 Rh5 Bf1 Rh8 Kd2 e5 Kd3 Ke7 Ke4 Ke6 c4 a5 h4 d3 b4 a4 b6 d2 b5 a3 b7 a2 b6 Na6 b8R Nh6 b7 Nc7 c5 Bd6 c6 Ne8 c7 Ra3 Bb2 Rc3 Na3 Rc2 Nc4 Kf6 Qc1 d1B Rh3 Be2 Ba3 Bd3+ Kd5 Kf5 Nf3 e4 Nce5 e3 Nf7 e2 N3e5 e1Q Qd1 Be2 Rc3 Bb5 Rc1 a1R Ra8 Raa2 b8R Bb7+ Rc6 Rh7 Ra4 Ba8 c8B Bc7 Rb7 Bb8 Nh8 Be2 Nc4 Kg4 Nd6 Kf3 Ndf7 d6 Ke6 d5 Ke7 d4 Kf8 d3 Bf5 d2 Bd3 Ng8 Bh3 Rh5 Bhf5 Nh6 Rc3 Qg1 Rc6 Qg2 Qh1 d1R Rc3 Bf1 Rc6 Nf6 Kg7 Ne8+ Kh7 Rdd2 Bde4+ Ke2 f3 Rd6 Bd3+ Kd2 Bfe4 Qf2 Rc3 Rcb2 Bb1 Ke2 Rc6 Rbd2 R1c3 Rdc2 Bd3+
2n2Q2/2B2qrk/1Pn2q2/rRP5/2q1Rn2/2rPN1NB/P1pK4/R1Nb3N b - - 0 1 illegal: No proof kernel
B3BR2/2qR3Q/1Prn2Br/N6r/2PP1k1B/2b1n3/K2pnP1N/1rq2N2 b - - 0 1 legal: proof: h4 b5 e4 g5 hxg5 f5 a4 fxe4 axb5 Na6 d3 Nb8 Rh6 d5 Rh2 c5 Rh1 c4 dxc4 d4 Rh5 d3 Rh4 d2+ Ke2 Bg4+ Ke3 Be2 Rh1 Bd3 cxd3 Kf7 Ke2 Ke8 b4 Kd7 g4 Kd6 b6 Ke5 g6 h5 b5 a5 b7 e3 g5 e6 b6 h4 g7 h3 g6 h2 Qc2 a4 Kd1 a3 Bb2+ Kf5 Bg2 e5 Nf3 e4 Nc3 a2 Ne2 Nf6 g8B Rh6 g7 Bb4 Bf7 Qc7 g8B Nc6 b8N Nd4 Ng3+ Kf4 Be8 Bc3 Bgf7 Ne2 Nc6 Rc8 Nf1 Rh5 Rg1 h1R Na5 Rh6 Bg6 R1h5 Bef7 Ne8 N3h2 Nd6 Be8 Ng3 Qb1 e2+ Kc2 e1N+ Kb3 e3 Ba8 e2 d4 Ng2 Ba3 e1R Bc5 Nb5 Be7 Nd6 Bh4 Ne3 Rg2 Ne2 Rg5 Qb8 Rd5 Rc6 Qc2 Qc7 Ka3 Ndf5 Rd7 Nd6 Qb1 Rc1 Qd3 Rc2 Re1 a1Q+ Kb3 Qd1 Ka3 Rc1 Ka2 Rb1 Qc2 Qc1 Qd3 Ng1 Re2 Nd1 Ree7 Ne3 Rf7+ Ndf5 Rf8 Ne2 Bgf7 Nd6 Qh7 Re6 Bg6+ Rf6 Bf5 Rfh6 Bfg6+
2Nn1QBB/3RpqP1/P1n1n3/1PP5/7k/KNB1n1N1/b4bqr/1N1Rq3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 c5 a4 b5 axb5 f5 e4 a4 exf5 Ra5 d4 cxd4 bxa5 Qc7 Qd2 Qb6 Qd1 Qd8 Kd2 Kf7 c4 h5 Kc2 d5 Kb2 h4 g4 d3 f4 d4 c5 h3 a6 d2 f6 Kg6 f7 d3 f5+ Kg7 g6 Kh6 g7 Kg5 f6 h2 Qf3 Rh5 Ka3 Qe8 Ne2 Kh4 g5 d1N g6 d2 Ng3 Ne3 Bc4 d1Q Bb2 Nh6 g8N Bg7 f8N Qf7 Ne6 Qe1 Bc3 Nc6 Nd4 Be6 Nb3 Bd5 Rg1 h1Q Ra2 Qg2 Rd2 Kg5 Rd1 Rh2 Rd4 Be6 Rd7 Kh4 Rf1 Nhg4 Bd5 Nge5 Nh6 Nd8 Bc4 Nec6 Nhf5+ Kh3 Nd6 Kh4 Rh1 Bh6 Nc8 Bf4 Nh5 Bg3 Bd5 Bf2 Ng3 Qd2 Rd1 Qe1 Kb2 a3+ Ka2 Qf8 f7 Qg7 f8B Qf7 Bc4 Bd5 Bfg7 Be6 Ka1 a2 Kb2 a1N Bh8 Nac2 g7 N2d4 Ka3 Bd5 Qf5 N4e6 Qf3 Qg8 Qf8 Qf7 Bd3 Bc4 Bh7 Bd5 Bg8 Bc4 Nc1 Ba2 Nb3
5b2/RRP1qN2/1qq5/3bN3/P1P1B1nk/rBQ1pr2/3r1PK1/1B1B2Nr b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 d4 Na6 dxc5 Kf7 h4 Ke8 h5 Nb8 g4 Bg7 h6 Bf8 Bf4 Nc6 Bg3 Nd4 Bh4 gxh4 g5 Ne6 g6 Ng7 hxg7 Qb6 Ne2 Qc7 Ng1 Qd8 c4 d5 c6 e5 f6 h5 f7+ Ke7 a6 Kf6 a3 Kg5 c7 b5 a7 b4 Ke2 e4 Qd3 e3 Kf3 d4 Bh3 b3 Nd2 b2 Kg2 b1Q Bg4 Qb6 Bd1 Nf6 g8B Ng4 g7 Be6 Qc3 d3 Bh7 Qe7 g8B Bd5+ Be4 Rh6 Bb3 Rf6 Bh7 Rf3 Bhg6 Rb8 a8B h3+ Kf1 h2 Kg2 h4 Bc6 Qd7 Bca4 Ra8 Bd1 Qe7 Bab3 Bg7 f8N h3+ Kf1 Ra5 Nh7+ Kh4 Ng5 Bf8 Nf7 Ra7 Ne2 Ra4 Rg1 h1R Rb1 h2 Kg2 Ra5 Re1 Rf1 Ng1 h1R Ba4 Qc6 Rb7 Ra7 Bdb3 Ra6 Ra1 Rd1 Nf1 d2 Nh2 Re1 Bb1 d1Q Bge4 Qd4 Bd1 Re2 Bab3 Rd2 Ra2 Nh6 Ng4 Qdb6 Nge5 Ng4 Rc2 Ra8 a4 Rd8 Ra7 Rd7 Rc1 Ra2 Rc2 Ra3 Rb2 Qa6 Bed3 Be6 Be4 Rd2 B3c2 Bd5 Rbb7 Qab6 Bb3
2R1N1Rq/P6k/rnqr1rb1/RP3p2/5Q1N/1P1P2q1/2q2RBN/1B2n2K b - - 0 1 legal: proof: c4 a5 e4 b5 g4 h5 gxh5 d5 cxb5 e5 b3 a4 Bb2 a3 exd5 axb2 f4 e4 Na3 Bd6 Nb1 Be5 fxe5 Ba6 Na3 Bb7 Nb1 Bc8 Kf2 Kf8 Kg2 c5 h4 g5 a4 Kg7 a5 g4 d6 f6 h6+ Kg6 h7 c4 e6 e3 e7 c3 e8B+ Kh6 h5 e2 d7 e1R a6 c2 Qc1 g3 Nc3 b1Q Ra5 Re6 Nf3 Rd6 Nh2 Nc6 Bg6 Nb4 Nd5 Nd3 Nc7 Ne7 Ne8 Rf8 h8N Ne1+ Kg1 Nd5 Bg2 Nb6 a7 Rb8 B6e4 f5 Ng6 Rff6 Nh4 Kh7 h6 Bb7 Bh3 Bd5 Bhg2 Bf7 Bd3 Qc8 d8R Bg6 Bde4 Qc6 Rc8 Qb2 Bd3 Na4 Bde4 Rb6 Bd3 Ra6 Bde4 Kh8 h7 Nb6 Bd3 Qbc3 Bde4 Nd3 Qf1 Ne1 Qf4 c1Q Bb1 Q1c2 d3 Qe5 Nc7+ Kg7 h8R Qee8 Rg8+ Kh7 Ng4 Qd8 Rh2 Qf8 Ne8 Qg7 Bf1 Qh8 Rf2 g2 Kh2 g1Q+ Kh3 Rf8 Bg2 Rff6 Kg3 Qf1 Kh2 Qfe2 Kh1 Qe5 Nh2 Qe3 Rb8 Qg3 Rc8
2K1QB2/P5rb/1p4Pb/1B2rPn1/1k1R4/3rNq1B/1N1RRrP1/1B2q1q1 b - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 axb4 e4 g5 f4 f5 fxg5 Bg7 exf5 Na6 h4 Nc7 g6 Bf8 Qe2 Ne6 Qd1 Ng5 hxg5 Ra7 Nc3 Ra5 Nb1 Ra8 Kd2 h5 Kd3 d5 Kd4 Kd7 Ke5 Kc6 c4 h4 a4 b3 g7 b2 g6 h3 a5 h2 a6 d4 a7 b6 Ne2 e6 Na3 b1Q Qe1 d3 Bh6 d2 Nc1 d1R Nc2 Rd4 Nd3 Qg5 Ne3 Rd6 Ra2 Rd7 Re2 Rd8 Nb2 Nf6 g8B Qg4 Rd2 Ne4 Be2 Qh5 Bg4 Rh7 Bh3 Ng5 Qe2 Qc1 Re1 h1R Kf6 Bg7+ Ke7 e5 Be6 e4 Bg8 Kb7 c6+ Ka6 c5+ Ka5 c7 Be6 c8B Qf3 c6 Kb4 c7 Rd3 Ba6 Rf1 c8R Rf2 Rd8 Bb3 Rd6 Re8+ Kd7 Re5 Bac4 Bf8+ Kd8 Rg7 Bb5 Ba2 Bb3 Qd1 B3a4 Bg8 Kc8 Bh7 Bc2 Qa1 Nec4 Qd1 Bb1 Qc1 Qe3 Qcd1 Ree2 Qg1 Qf4 e3 Qe4 Red5 Qe8 Re5 Re1 e2 Ne3 Ne6 Red1 e1Q Re2 Ng5 Rdd2 Rb7 Bg7 Rf7 Bh8 Bh6 Bg7 Rd7 Bf8 Rg7 Rd4+
2bq3B/P2NP1qB/1rp3rQ/1P4R1/1r5q/1nr4P/R2R3b/1KBB2Nk b - - 0 1 legal: proof: b4 a5 g4 h5 c4 hxg4 a4 b5 axb5 d5 cxd5 e5 f4 a4 fxe5 Nc6 Kf2 Bc5+ Ke1 Na5 bxa5 Bf8 d4 Ke7 Kd2 g5 Kc2 f5 e4 a3 h3 c6 a6 g3 d6+ Ke6 d7 g2 a7 a2 Na3 g4 Qd2 f4 Be2 f3 Qe1 f2 Bf1 g3 Qe3 Rh4 Be2 f1R Qh6+ Nf6 Nc4 Rf3 Nb6 Bd6 Bd1 Rc3+ Kb2 Rb8 d5+ Ke7 e6 Bc7 e5 Ne4 Na4 Nc5 Nb6 Nb3 Rh2 Rb4 Rb1 Qf8 d8R a1R Rd6 Qd8 Nd7 Ra6 Ra1 Rab6 Ra2 R8b7 Kb1 Bb8 Nf3 g1Q Rhd2 Qd4 Ng1 Qh4 Rg2 Ke8 e7 Kf7 Rgd2 g2 e8B+ Ke7 e6 Bc7 Nf3 g1Q Bg6 Qgg4 Bh7 Qg7 Ng1 Rb8 Nf8 R8b7 Rg2 Rb8 Rg5 R8b7 Ng6+ Kf6 Rd7 Bh2 d6 Rb8 e7 Ke6 Ne5+ Kd5 Rb7 Ra6 d7 Raa4 Rc7 Rb6 Rb7 Rg4 Rb8 Rab4 Ra8 Qe8 d8B Kd4 Bc7 Qd8 Nd7 Rg2 Bb2 Ke3 Bf4+ Kf2 Be5 Rgg4 Rb8 Kg2 Bc1+ Kh1 Rb7 Qgg8 Bh8 Rgg3 Nf6 Qgf8 Rd7 Qg7 Rdd2 Rgg4 Nd7 Rg2 Rh5 Rg6 Rg5
K1N2n2/1N1B3k/R4N1r/3Q1p1r/PPR3PN/Bn2n1r1/3Pr3/b2bB1b1 b - - 0 1 legal: proof: h4 d5 c4 e5 cxd5 g5 hxg5 Ba3 f4 Bf8 a3 exf4 b3 b5 Ra2 a5 Ra1 b4 axb4 Ba6 Na3 Bb7 Nb1 Bc8 Nf3 a4 Ng1 a3 Rh2 Qd7 Rh1 Qa4 bxa4 Bh3 Qb3 Be6 Qd1 Bc8 Kf2 f5 e4 Kf7 g4 Kg6 e5 h5 e6 c5 d6 f3 Ke3 h4 e7 h3 e8N f2 d7 h2 d8B c4 Kd4 a2 Kd5 c3 Qf3 c2 Nc3 Ba6 Nb5 Bd6 Na7 Bf4 Ba3 c1N Nc8 Nb3 Bb5 f1R Rc1 a1B Rc4 Rh6 Bd7 Kh7 Ned6 Be3 Nb7 Nf6+ Kd6 Bb6 Qd5 Rf3 Bc7 Rc3 Nf3 Bg1 Nh4 Rg3 Bd8 Bb5 Kc7 Ra6 Be7 Re6 Bd8 Re2 g6+ Kh8 g7+ Kh7 g8N Rh5 Bc6 Nbd7 Be7 Nf8 Kb8 Rh6 Bd7 Bc6 Ka8 Rh5 Qd4 Bf3 Qd5 Rh6 Bc5 Rh5 Bf2 Rh6 Qd3 Nd5 Be1 Ne3 Qd6 Rf2 Qd5 Bd1 Rc6 Re2 Ra6 Bf2 Rf1 Bg1 Rf4 h1R Rc4 Rhh2 Nf3 R2h5 Nf6+ Kh8 Nh4 Kg7 Ng8 Kh7 Nf6+
4bb2/5P2/P2b1q1B/1n2RB2/3r2B1/1p1R1NP1/N1NNP1K1/qkb1qQb1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 f4 c4 dxc4 Nf3 b5 Nh4 g5 Qa4 Nc6 Qb4 Nd4 Nf3 Nf5 gxf5 g4 Ng1 g3 Qa4 g2 Qd1 Ra6 Nf3 Rg6 Ng1 Rg3 hxg3 Bb7 Bb2 Ba6 Bc1 Bc8 Kf2 Ke7 a4 c5 d4 h5 e6 Kf6 d5 Ke5 a6 b4 a5 f3 d6 b3 a7 c3 a8N h4 d7 c4 e7 c2 e8B c3 f6 h3 f7 h2 a6 Rh4 Bg5 c1B Nh3 c2 Nd2 Kd4 Ng1 Kc3 Ra5 Kb2 Nb6 Qf6 d8N Ne7 Ne6 Bd7 Bh6 Rd4 Re5 Nf5 Nd5 Nd6 Nc3 Nb5 Na2 Bc6 Bd7 Ka1 Nb1 Bca3 Nd2+ c1B Bc8 Bad6 Qe1 Rc4 Nd4 Be8 Bg4 Kb2 Nc2 Rd4 Ke3 f2 Nf3 g1B Bfh3 f1Q+ Qf2 Qe7 Bf5 Qe1 Bhg4 Rd5 Kf4 Qe6 Qf1 Rd4+ Kg5 Qg6+ Kh4 Qf6+ Kh3 Be3 Rg1 Bf2 Rg2 Bg1 Rf2 h1Q+ Nh2 Qc6 Rf3 Qc3 Rd3 Qa5 Kg2 Qa3 Ne4 Kb1 Nf3 Qaa5 Bg7 Qac3 Bh6 Qa1 Ned2+
BB5n/5NR1/4KB1n/rPPp1N2/q6r/1P2B1q1/1PQ1R3/rn1rrkN1 b - - 0 1 legal: proof: e4 f5 exf5 c5 h4 g5 d3 b5 Rh2 c4 Rh3 b4 Rh1 b3 cxb3 gxh4 Bh6 Bg7 Bc1 Ba6 a3 Bc3+ Qd2 Bb4 axb4 c3 Qd1 Bc4 dxc4 Kf8 Ra5 Kf7 Ra1 Ke8 Ke2 Kf7 Ke3 Kf6 Kd4 d5 f4 h5 g4 a5 c5 e5+ Ke3 c2 b5 e4 Kd4 e3 Qe2 h3 Na3 h2 Ra2 h4 Nc4 h3 Nd6 a4 Nf7 a3 Bg2 Nd7 g5+ Ke7 f6+ Ke6 g6 Kf5 g7 Ra5 Bd2 Nh6 g8N c1N Qd1 e2 Qc2+ Kg4 f5 Kg3 Ne7 Kf2 Be3+ Ke1 Ra1 Nf8 Ke5 Ng6+ Ke6 a2 Bf3 Qg8 Bg4 Kf1 Bh5 Kg2 Rb1 Nd3 Re1 a1Q Nf3 Qb8 Nd8 Qc7 f7 Nc1 f8B Rg8 f6 Qa4 f7 Na2 Nf5 Nh8 Bd6 Nc3 f8B Rg4 Be8 Rh4 Bc6 Qg7 Rhf1 h1R Bb8 h2 Be7 Rg1 Ba8 h1R Bf6 Qc7 Nd2 Qh2 Rf4 Qg3 Nf7 Rf1 Nf3 Rhg1 Rd1 Rgh1 Rd2 Ra1 Rg4 Nb1 Rg6 Rd1 Rg7 Kf1 Ng1 e1R Re2
rqN1nR1B/1B2P3/q3B2R/2q1q3/k1r3Qn/pRPK1nP1/N3P3/rB6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 a4 e5 fxe5 Nc6 d4 cxd4 a5 Nb8 b3 b4 Qd2 Ba6 Qc3 Bc5 Rh2 Bb6 axb6 Bb5 Qd2 a5 Qd1 a4 Rh4 a3 Rh1 Ba4 bxa4 Ra6 Kd2 Ra5 Ke1 Ra8 Kd2 f5 g6 d5 e6 h5 b7 d3 c3 d4 a5 f4 e7 Kd7 a6 Kc6 a7 Kb5 g3 f3 g7 b3 Qc2 b2 Bg2 f2 Nf3 f1Q Nh2 h4 Ng4 h3 Bf3 h2 Nf2 Qd5 Ng4 Qf2 Nf6 Nc6 Ne4 Nf6 g8B Ne5 Be6 Rhc8 b8R+ Qb7 Qd1 Rc4 Rf8 Qa6 Nd6+ Ka5 Bg2 Ne8 Bb7 Qf5 Qg1 Ka4 Nc8 Ng6 Qe3 Nh4 Qe4 Qc5 Qg4 Qe5 Rhf1 h1N R1f6 Nf2 Rh6 Nh3 Be4 Ng1 Bg6 Rb8 a8B Qc5 Bb7 Ra8 Ke1 Qe5 Nd2 b1Q Nb3 d2+ Kf2 d1R Bg5 d3 Nc1 d2 Bf6 Ngf3 Bh8 Re1 Na2 d1Q Bc2+ Qb3 Rb1 Qdd5 Rb2 Ra1 Bb1 Qbb5 Rb3 Qb8 Ke3 Qde5+ Kd3 Qbb6 Nd6 Qbc5 Nc8
2QN2nR/KP4q1/pn4r1/4b1R1/2qnP3/1q3kB1/BP2P3/qNn1R1RN b - - 0 1 illegal: Other
4BNR1/Pk3P1p/nb1n2p1/1B4r1/1B1P1R1P/nK1Nb1q1/3Q1RB1/4rq2 b - - 0 1 legal: proof: f4 f5 c4 e5 g4 Ke7 Qa4 Kd6 Qxd7+ Kc5 fxe5 b5 b3 f4 cxb5 a5 b4+ axb4 Qe8 Be6 Qd7 Bf5 gxf5 Ra6 Qe6 Ra3 Qd7 Ra8 Kd1 Kb6 Kc2 c5 a4 c4 h4 c3 e4 g6 e6 f3 f6 f2 e5 Qc8 e7 Bh6 e8B Qa6 e6 Qc8 a5+ Kc5 a6 Kb6 a7 Nc6 f7 Bg7 e7 Bf8 Ba3 Nh6 Rh2 Qc7 Ne2 Kb7 b6 Rb8 Nf4 Nf5 Ne6 Nd6 Bg2 f1Q Kb3 c2 Nc3 c1B Na4 Rc8 d3 Be3 Nb2 Bg7 Rc1 Bgd4 Rc4 Bc5 Re4 Nb8 Nf8 Na6 Qd8 Qb8 Bb5 Bcd4 e8B Rc5 Qg5 Rf5 Qf4 Rg5 Qf2 Bc5 d4 Rg8 Qd2 Rh8 Ka4 b3 Nd3 b2 Bb4 b1N Kb3 Na3 Rf4+ Ne4 Rf6 Qg3 Rf3 Nd6 Rf4+ Kc8 b7+ Kc7 b8R Bb6 Bf3 Rg8 Rf2 Rh8 Bec6 Rg8 Bg2 Rh8 Nd7 Re8 Nf8 Re7 Bd7 Re4 Rd8 Kb7 Be8 Qf3 Bed7 Re8 Ra8 Rc8 Ne6 Rc1 Rg8 Rd1 Nf8 Re1 Bgh3 Qg4 Be8 Qg3 Bg2+
3b1q1B/1NBqkn1B/Pb4N1/2rQrP2/1r1q4/1p3BK1/pP2P3/3R1RR1 b - - 0 1 illegal: No proof kernel
3nbB1N/P1b1BpbR/pPPQ2b1/K7/1B2PR2/1k1rN3/7R/2b2Rnq b - - 0 1 illegal: No proof kernel
2R5/1R2Bq1r/2kr1brp/K1n3n1/3nP1P1/PP2B1BN/1N2Q1p1/1B2n2N b - - 0 1 legal: proof: b4 a5 Na3 axb4 Nb1 b3 Na3 b2 Nb1 Ra3 Nh3 Ra5 Ng1 Ra8 d4 e5 Bf4 b5 Bd2 b4 Bc1 b3 cxb3 Qh4 Nc3 Qe7 Nb1 Qd8 dxe5 f5 h3 g5 g3 Bb7 g4 Bf3 gxf5 g4 Qd2 g3 Qd1 Bg4 hxg4 Qe7 Qd4 Qf6 Qd1 Qd8 Kd2 d5 Kc3 Kd7 f4 c5 e4 h6 e6+ Kd6 e7 g2 e8N+ Kc6 f6 c4 f5 Bd6 f7 Be7 f8B Bf6+ Kb4 c3 Qe2 d4 Nh3 c2 Be3 c1N Bd6 d3 Nc3 b1N Na4 d2 Bg3 d1R Nb2 Nc3 Ng7 Qd5 Nh5 Nb5 a3 Na6+ Ka5 Nd3 Rc1+ Qc4 Rc3 Ne1 Rc1 Be5 f6 Rh7 f7 Nd4 f8B Nf6 Be7 Rg8 Rc2 Nc5 Rd2 Nf5 Rd7 Nd4 Rb7 Qf7 Rb5 Rhg7 Nc4 Na4 Nd6 Nd3 Nc4 Nh7 Bgh4 Ne6 Qf3 Kc7 Ng3 Bf6 Nb2 Nhg5 Qf2 Rh7 Rb7+ Kc6 Rg1 Rg6 Nh1 Rd2 Bg3 Rd1 Rb8 Kd7 Be2 Rd2 Rc1 Ne1 Rcc8 Rd6 Bd3 Nac5 Bb1 Nd4 Rb5 Ndf3 Qe2 Nd4 Rh8 Kc7 Rb7+ Kc6 Rc8+
B2N4/2rP1n2/3nBq2/r1BKN3/R2n2bk/1p1nrP2/3PpPN1/R1Q3N1 b - - 0 1 legal: proof: c4 f5 b4 a5 Na3 axb4 Nb1 d5 cxd5 f4 Qc2 f3 Qa4+ Bd7 Qd1 Bc8 exf3 g5 g4 h5 gxh5 g4 h3 Bh6 h4 Bg5 hxg5 Qd7 Qc2 Qd6 Qd1 Qd8 Ke2 Kf7 Ke3 c5 Ke4 b5 a4 e5 a5 c4 a6 b3 g6+ Kf6 a7 Kg5 h6 c3 d6 b4 h7 c2 g7 g3 Bc4 g2 Rh4 b2 Ba2 b3 Rh2 Nh6 g8N Bg4 d7 Nf7 Rh4 Nc6 Kd5 e4 Na3 b1N Nc4 e3 Nf6 e2 Nh5 Re8 h8N Qf6 Ne5 Na3 Nf4 Nc4 Ba3 c1N Bb1 Nd3 Bc5 Nd4 Qc1 Ncd6 Bc2 Rac8 a8B Rc7 Bb1 Nb2 Bf5 Nd3 Be6 Re7 Ra4 Re8 Rh1 Re7 Ngh3+ Kh4 Rd1 g1R Ng2+ Kh5 Rf1 Rh1 Ng1 Kg5 Nc6 Rh5 Ng6 Re8 Nd8 Re7 Bf5 Re4 Ne5 Re3 Nf4 Kh4 Be6 Rg5 Qb2 Ra7 Rfa1 Ra5 Qc1 Rg8 Ndc6 Rc8 Nd8 Rc7 Ng2+
b2BN2Q/rNK1nr1P/3rP3/P3p3/1q1NBR2/4k2q/pBP1N3/r2R2r1 b - - 0 1 illegal: No proof kernel
Bn3k1N/K4NqP/P2Rn3/3N2r1/2PBq2q/2p2Pp1/bR3q1R/2N1qQ2 b - - 0 1 legal: proof: g4 b5 e4 a5 b4 axb4 c3 f5 exf5 h5 gxh5 b3 Qf3 b2 Qg4 Nh6 Qd1 Ng8 Nf3 c5 Bd3 e6 Ng1 b4 Ba6 b3 Bf1 c4 d3 Bb4 cxb4 c3 Bg5 Ra7 Bd2 Rc7 Bc1 Rc4 dxc4 Qg5 Qd2 Qf6 Qd1 Qd8 Ke2 g5 Kd3 d5 Kd4 e5+ Kc5 e4 a4 d4 h4 e3 a5 e2 f6 e1Q a6 d3 f7+ Kf8 b5 g4 h6 d2 h7 g3 b6 Qee8 h5 Qh4 b7 Bd7 Kb6 Kg7 f8N Qhe4 h6+ Kf7 Na3 b1Q Ka7 b2 Ne6 Qf8 Nc7 Bh3 Nab5 Qh4 Bg2 Qg7 Qf1 d1Q Be3 Qe2 Rh2 Kf8 Nd6 Qbe1 Rd1 b1Q Nf7 Qbe4 Nd5 Nf6 Bd4 Rg8 h8N Nfd7 h7 Bf5 Rd3 Q2d2 Ne2 Nc5 Nc1 Ne6 Bh1 Bg4 Bg2 Bd1 Bf3 Bb3 Bh1 Ba2 Bg2 Nd7 b8R+ Qd8 Rb2 Qdh4 Bh1 Nb8 Bg2 Qeg4 Be4 Qde3 f3 Q3f2 Ne7 Qf5 Ba8 Qfe4 Rdd2 Qgh6 Nd5 Rg5 Rb6 Qf6 Rdb2 Qg7 Rd6
2n1n3/5PNk/6QN/bRB1B2r/1npq1PR1/2Pp1P2/1KR2nN1/nnN5 b - - 0 1 legal: proof: d4 a5 g4 h5 a4 c5 Bh3 b5 axb5 f5 gxf5 c4 Bg4 hxg4 f3 Bb7 f4 Bf3 exf3 Ra6 Qd3 Rc6 Qd1 Rc5 dxc5 Rh4 Na3 Rh5 Nb1 Rh8 Kd2 Kf7 Kc3 e5 b4 g5 h4 Kg7 h5 d5 c6 a4 b6 a3 c7 e4 c8N e3 b5 g3 f6+ Kh7 h6 g2 b7 e2 b6 e1N Ne2 g1N Ne7 g4 Nf5 a2 Kb2 d4 c3 d3 Be3 g3 Bc5 g2 Na3 Bd6 Ng7 Nc2 Rh2 Bc7 Nc1 Ne2 Qg1 Nb4 Nc2 N8a6 b8R Ne7 b7 Nd4 Ne3 Nb5 Rh4 Ba5 Rg4 Qb6 Rb1 a1N Ra8 Nbc2 b8B Nab4 Be5 Nd6 Rb8 Qa7 Rb7 Na3 Rb5 Nb3 Ra1 Ne8 Ra2 Nb1 Qh2 g1N Qg3 Kg8 Ng2 Nh3 h7+ Kf8 Rh4 Na1 Qg6 Nf2 Rg4 Qd7 Bb6 Qd4 Ba7 Rg8 h8N Nc8 Nf7 Rh8 Bb6 Kg8 Bc5 Rh2 Nh6+ Kh8 f7 Rh5 Nb3 Nc6 Kc1 Nb4 Rc2 Bd8 Kb2 Ba5 Qg5 Kh7 Nc1 Na2 Qf6 Nb4 Qg6+
R1NnQ1n1/3nPN2/3qpB2/n1n1RbNR/1p2P3/1q1P4/1R2P1b1/1K3k1B b - - 0 1 legal: proof: g4 a5 f4 h5 gxh5 g5 b4 axb4 f5 d5 f6 b5 Nc3 e6 Kf2 d4 Nb1 Be7 fxe7 Ra3 Nc3 Kd7 Nb1 Re3 dxe3 d3 e4 d2 Nc3 Rh6 Nb1 Rf6+ Kg2 Rf5 Kg3 Rd5 Kf2 Rd3 cxd3 Kd6 Qa4 Kc6 Qd1 Kd7 Ke3 Kd6 h4 Kc5 a4 f5 h6 f4+ Kf2 Kd4 h7 c5 h8R c4 h5 b3 h6 b2 a5 c3 a6 c2 a7 g4 a8R g3+ Kf3 g2 h7 b4 R8a4 Qd6 Kf2 f3 Rh2 Nc6 Rh6 Bd7 Rh5 Be8 Nc3 b1N R4a2 Na3 Re5 Nd8 Rb2 Nc4 Nd5 Bg6 Nb6 Bf5 Nc8 Na5 Nh3 g1N Bg2 Kc3 Ke3 f2 Ra4 f1B Ng5 Nf3 Bh1 Bg2 Qg1 d1Q Qh2 Nd2 Qh5 Ndb3 Qe8 Nc5 Ra1 Nd7 Raa2 Nab7 Ra8 Nbc5 Rba2 Kb3 Bb2 c1N Bc3 Qc2 Ba1 Qb1 Kd2 Qb2+ Kd1 Qb1 Rb2+ Kc3 Raa2 Kd4 Ra8 Qa2 Kc2 Qb3+ Kb1 Ke3 Ra5 Kf2 Rb5 Ngf6 Rg8 Ke1 h8N Kf1 Rf8 Ng8 Nhf7 Qa3 Ra5 N1b3 Rb5 Ngf6 Rh8 Ng8 Ra5 Qa4 Ra8 Na5 Rh5 Qa3 Rd2 Qa4 Bd4 Qb3+ Rb2 Qc7 Rd5 Qb8 Bf6 Qd6 Re5
3n2B1/q1N1n3/5kR1/1PPn1B1p/1pNbqRPP/1b4nR/1QRb1N1K/8 b - - 0 1 legal: proof: d4 c5 b4 b5 a4 g5 f3 e5 dxe5 g4 Ba3 Be7 axb5 Kf8 b6 Ke8 b5 Bf8 Bb4 cxb4 Na3 f5 Qb1 a5 Qd1 h5 Kd2 f4 Nb1 Rh7 Qc1 Rg7 Qe1 g3 Qd1 Rg4 fxg4 f3 Ra4 f2 Ra2 Ra7 Ra1 Rc7 Ra4 Rc3 Ra1 Rf3 gxf3 Qh4 Bh3 Qf6 Bf1 Qd8 Ke3 Ke7 Kf4 d5 h4 g2 Kg3 a4 c4 d4 e4 a3 c5 a2 e6 d3 e5 d2 f4 Nc6 b7 Qc7 b8R Nd8 f5 Ba6 f6+ Ke8 e7 Kf7 e8B+ Ke6 f7 Bg7 f8R Qc8 Bd3 f1Q Qe2 d1N Nd2 Qd7 Rh3 Nc3 Nc4 Qe1+ Kh2 Bc8 Rf4 Nd5 Rc1 a1B Qb2 Bh6 Rc2 Qa7 Rb6+ Ke7 e6 Qe4 Bf7 Bg5 Ne2 g1N Ng3 Ne2 Nh1 Ng3 Nf2 Bb7 Qa2 Bd4 Qb2 Qh7 Bf5 Kf6 Ra6 Nge7 Bg8 Bc8 Rf3 Bd2 Rf4 Ng6 e7+ Be6 e8N+ Ke7 Nc7 Kf6 Rb6 Nge7 Bd3+ Qf5 Rf3 Qf4 Bf5 Qe4 Rf4 Ne3 Qa1 Kg7 Na3 Bb3 Qb2 N3d5 Nc4 Qe3 Rh6 Qe4 Rh7+ Kf6 Rg7 Bc1 Rg5 Bd2 Rg6+
4K1B1/1Pbr1p1b/r1NQ4/Pr2PPBb/4p1R1/r1N5/4BnRb/N1k4N b - - 0 1 legal: proof: d4 a5 c4 e5 h4 g5 hxg5 b6 b4 b5 cxb5 axb4 Rh5 d5 Rh4 Nd7 Rh1 e4 e3 Ne5 dxe5 d4 Qh5 d3 Qd1 Qd4 exd4 Bc5 Qf3 Bd6 Qd1 Bf8 Kd2 Ke7 Ke3 Ke6 Kf4 Kd5 g4 Kc4 a4 h5 a5 c5 b6 h4 b7 h3 d5 b3 d6 b2 g6 h2 Kg5 Nf6 f4 Bg7 d7 Rh6 d8N Ra6 Nd2+ Kc3 Nc6 b1R Ra2 c4 Nh3 Rb5 Nf2 Bf5 Nb3 d2 Be2 Rh3 Rg1 h1R Na1 Bf8 g7 Bh7 g8B Bd6 f5 Bc7 Rb2 R1h2 Nh1 Rd3 Rg2 Rhh3 Rg1 Rhg3 Kh6 Rh3+ Kg7 Rd7 g5 Ng4 Kf8 Nf2 g6 Rhd3 g7 Re3 Qa4 d1B Rg4 Red3 Bg5 Re3 Rb4 Kd2 Rb2+ Kc1 Qa3 c3 Qd6 c2 Ra2 Kb1 Ke8 c1B Ra3 Rh3 Rag3 Bf4 Rg2 Bh2 Nb4 Rh5 Na2 Rh3 Nc3+ Kb2 Qc6 Re3 Qd6 Kc1 Nd5 Kd2 Bf3 Rb4 Rf4 Reb3 Nc3+ Kc1 Bh5 Bg6 Bh7 Bb8 g8N Bc7 Ne7 Rb5 Bg8 Bh7 Nc6 Bg4 Na7 Ra3 Nc6 Bh3 Bd1 Bg4 Be2 Bh5 Rfg4+
1BR2nb1/1q6/N1PN2p1/RpN1K1Nq/b3B1QP/1P2q2P/Rp4k1/1n4r1 b - - 0 1 illegal: No possible last move
3N1B2/1rk1Bb1P/K1nq3p/b3p3/P3Pn2/pqNRNRR1/1N1P4/2q1Q3 b - - 0 1 illegal: No proof kernel
3rn2K/2pNq3/2bpbR1k/3NN3/3pPP1b/1BbP4/NQnP4/BB4R1 b - - 0 1 legal: proof: g4 b5 h4 g5 hxg5 f5 gxf5 e5 a4 a5 axb5 Ra6 Bh3 Rd6 Bf1 Rd3 cxd3 Qe7 Qa4 Qd8 Qd4 exd4 e4 Kf7 Ke2 Kg7 Kf3 h5 Kf4 h4 Ke5 h3 f4 h2 b4 a4 f6+ Kh7 b6 a3 f7 a2 b7 Bc5 f8N+ Kg7 b5 Ba3 b6 Be7 g6 Na6 b8N Nf6 b7 Rh4 Be2 Ba3 Bd1 Nc5 Nc6 Ne6 b8Q Ng5 Qb2 Rh6 Ne7 Rh8 Nf3 Bb7 Nc3 Bc6 Rg1 h1B Bc2 Kh6 g7 Ne8 g8B Bg2 Bgb3 Bh3 Ned5 Be7 Rb1 a1B Na2 Bf1 Kf5 d6 Nd7 Bf6 Nfe5 Nf3 Rg2 Ne1 Rg6+ Kh5 Ke6 Bh3+ Kf7 Bh4 Rf6 Rg8 Qa3 Bc3 Bb2 Rh8 Ba1 Rg8 Rd1 Bg4 Bb1 Nc2 Qb2 Bh3 Ng6 Kh6 Rg1 Bf5 Re6 Qg5 Rf6 Be6+ Ke7 Rg7+ Kf8 Rf7+ Kg8 Qe5 N7b6 Rd7+ Kh8 Rd8 Nd7 Qg5 Rf5 Qe7 Nge5 Bg5 Rf7 Bh4 Rf6+
1kNKR1nq/r1QR4/P2n1np1/B4P1b/p1P1p3/B1rP4/p2BN3/3N2N1 b - - 0 1 illegal: No proof kernel
NK6/Pp2q1N1/1P2Q1b1/rPb3Rp/1RN1p3/pbP2B2/3B3k/1RnrR3 b - - 0 1 illegal: No proof kernel
5bK1/NNpP1PN1/k1B2pRP/3Q1n1R/2n1B2R/p3pP1b/pb1r4/N7 b - - 0 1 illegal: No proof kernel
R1RBB2R/R1NrnnQK/n4P2/1PN1P1N1/k4q2/2n3r1/qn2bP2/3rb3 b - - 0 1 illegal: No proof kernel
r1R1rn1K/2QP4/qP2PN2/2b1BbNB/q2r1q2/1P2R3/2B1q1nB/1N4qk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 f5+ Kd4 a5 e4 c5+ Kc4 Ke5 g4 h5 b3 a4 g6 f3 g7 Kf4 d4+ Kg3 b6 f4 d6 h4 Kd5 a3 Ke5 a2 d7 f2 d5 f3 d6 c4 g5 c3 g6 h3 Be2 Kg2 Qd4 f1Q Bb2 f2 Qc5 h2 Nf3 c2 Qc7 c1R Ng5 Rd1 Bh5 Ne7 Kf6 Qa6 g8N Qe8 d8B Nf5 g7 f1Q e5 Qf4 Re1 h1Q Re3 Rd4 Be7 Qea4 Kf7 Nd7 Nf6 Qc1 g8B Kh1 Bh7 Nh4 Bc2 Qe1 Bd8 Be7 Kg7 Re8 Kh7 Bf8 Kh8 Qee2 Be7 Ng2 e6 Bb7 Bd8 Be4 Bc3 Bf5 Bb2 Rd5 Be5 Rd4 Be7 Qe4 Bh2 Qf4 Bd8 Ne5 d7 Ng6+ Kh7 Bd6 Kg7 Nf8 Kh8 Bb4 Be7 Bc5 Bd6 Qef1 Be5 Qae2 Nd2 Qg1 Rc1 a1Q Nb1 Qaa6 Be4 Q1a4 Rcc3 Ba3 Bc2 Bb4 Qd6 Ba3 Rc8 Bc5 Qc7
4qkNr/Nnb2b2/1Q3nN1/1BB1N3/brP2RP1/Rb1K4/rP1P2B1/n3q3 b - - 0 1 illegal: No proof kernel forced: bxDB
5Q2/3rb1q1/b1N1P2k/PBB4r/bRb1q1Pn/3n2N1/PrnR2NK/1B4B1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 b4 Bg7 bxa5 Bf8 Kf2 f5 g4 Kf7 Kg2 Kg6 e4 b5 d4 h5 d6 c5 d5 c4 e5 c3 e6 c2 d7 h4 d6 b4 Qd4 h3+ Kh2 b3 Bd2 c1N Ba6 b2 Qf2 f3 Qe1 f4 Bb7 f2 Qe3 f1B Qa3 f3 Ba6 f2 Ne2 Qc7 d8N Nh6 Bb5 Be7 Bb4 Nf5 Nc6 Na6 Nbc3 b1R Nd1 Ra7 Ne3 Nh4 Ng3 Bc4 d7 f1B d8B Rb2+ Ng2 Rh5 Rb1 Nd3 Bc5 Nab4 Rd1 Rb7 Rd2 Nc2 Bg1 Qe5 Bdb6 Bd7 Bbc5 Qg7 Qb4 Kh7 g6+ Kh6 Qa3 Be8 Qb4 Rd7 Qa3 Qh8 g7 Qh7 g8B Qg7 Bgf2 Be2 Rb1 Bf1 Bg1 Be2 Kh1 h2 Bh7 Bf3 Nb4 Bb7 Nc6 Ba6 Bg6 Nf4 Qf3 Nd3 Qf8 Rc7 Qf7 Ncb4 Ne1 Rc2 Ne5 Nc1 Bd7 Rb7 Rb3 Rb2 Bb1 Nc2 Qf8 Nd3 Ba4 Beb5 Nc6 Rd7 Rb4 Nf3 Kg2 Nh4+ Kh3 h1Q+ Rh2 Qf3 Rd2 Qe4 Ng2 Bb3 Kh2 B5c4 Bb5 Ba4 Bcf2 Bf6 Bb6 Be7 Bbc5
qn6/2n1Nq1P/1K2P2R/BR1B1Brb/P1qnQP2/k7/1bq2b2/2RRr2N b - - 0 1 illegal: No proof kernel
1q2B1N1/1b1kPqn1/NK2n1N1/1RrPq3/4b3/B1PB4/P1Rb3B/1qn1r2Q b - - 0 1 illegal: No possible last move
r2kr3/P6R/1R3BnP/N1qR1rqB/r1nq2Bb/4NP1n/1P2Q3/1b4BK b - - 0 1 illegal: No possible last move
3B4/5PP1/1K5k/Pbn5/N2bnP1R/1q1BbNb1/NNr3bB/R1Qrb2n b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 d5 c4 dxc4 h4 Qd7 hxg5 Qd8 Ke2 Kf7 Ke3 Kg7 a4 h5 g4 c5 d4 e5 g6 b5 f6+ Kh6 d5 b4 d6 b3 d7 e4 f7 h4 a6 b2 a5 c3 a7 h3 g7 h2 f3 c2 Be2 c4 Kd4+ e3 Qd3 c3 Na3 b1B Qd2 Nf6 Bd3 Ba6 Nc4 Bb5 Nb2 Ne4 f4 e2 Nf3 e1B Rg1 h1N Rg2 Qc8 d8B Nd7 Kd5 Rb8 a8N Be7 Nb6 Ndc5 N6a4 B7h4 Rg1 Bhg3 g8N+ Kg6 g5 Qb7+ Kd4 Rh2 Ne7+ Kg7 g6 Kh6 g7 Re2 Bc7 Rd8+ Nd5 Ba2 Qe3 Bb3 Bd2 c1B Rg2 Rd6 Bd8 c2 Qg1 Ba2 Be3 Bcd2 Qf1 c1B Bg1 Bac4 Bh2 Be3+ Ke5 Be3f2 Ndc3 Rc2 Na2 Bd5 Rg1 Bce3 Rg2 Bh4 Rg4 Bhg3 Qg1 B1d2 Qd1 Bde1 Qc1 Bdc6 Be2 Rd1 Bd3 Ng5 Kd6 Bg1 Ne5 Bg2 Nf3 Qd5+ Kc7 Nge4 Kb6 Qb3 Qb1 Bd4 Qc1 Bge3 Rh4+
1BNrb1R1/r2RqP2/r4nB1/4rk2/3P2R1/P2qrn1N/1r1R1P2/K1bQN3 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 d5 c4 h5 cxd5 Ra5 gxh5 Ra8 h4 Kf7 d4 Kf6 Kd2 c5 Kc2 b5 Kb2 e5 a3 g5 d6 c4 d7 g4 h6 e4 h7 c3+ Ka2 e3 h5 c2 h6 e2 Qd3 e1R Qd1 b3+ Kb2 g3 Nd2 g2 Be2 b4 Bd3 Nc6 Ra2 Qe7 d8R Ra6 Rh3 Ne5 Rf3 Re4 Rd5 Bd7 Nh3 Ra7 Bc4 g1R Ka1 Rg5 Rg3 Re1 Nf3 Bb5 Bf4 c1R+ Kb2 Bd7 Bd3 Rc6 Ka1 Rca6 Bc4 Re2 Ne1 Re4 Be2 b2+ Kb1 Bc6 Bh5 Nf3 Rg4 Bd7 Bb8 Bb5 Kc2 b3+ Kc3 b1Q Rd8 Qd3+ Kb2 Be8 Rd7 Bg6 Ka1 Bg7 Rc2 b2+ Ka2 Kf7 f6 b1R Re2 Rb2+ Ka1 Ke6 Rc2 Be8 f7 Nf6 Re2 Rf8 h8R Rge5 h7 Bh6 Rhg8 Bc1 Rc2 Re3 Rd2 Kf5 h8N Qd6 Ng6 Qe6 Rd5 Ba4 Rd6 Qd7 Rd5 Rd8 Ne7+ Ke6 Nc8 Kf5 Rd6 Qe7 Rd5 Be8 Rd6 Nh7 Rd7 Nf6 Bg6+
4b2N/1bPPn1R1/4NB1q/PQnR1rb1/R4R2/3nrP2/3B1nn1/1K1kb2B b - - 0 1 illegal: No proof kernel
4r1b1/n2qb3/nrr3PB/1B1n2B1/1PPB4/1Pn1b1b1/1K2RN1R/2R2kNQ b - - 0 1 legal: proof: h4 c5 e4 b5 d4 cxd4 a3 g5 hxg5 f5 exf5 b4 axb4 Bb7 Kd2 Ba6 Ke1 Bc8 Kd2 Kf7 c4 d5 Kc2 a5 g4 h5 f4 e5 b3 d3+ Kb2 a4 g6+ Kf6 g7 h4 Bh3 d4 Bd2 a3+ Kc1 a2 Qf1 e4 Qe2 e3 Bc3 d2+ Kb2 d1N+ Kc2 Be6 Qf1 e2 Bb2 e1B Qd3 Be7 Qf1 Rh6 Bc1 Bg3 Qg2 d3+ Kd2 Ne3 Kc3 d2 Kb2 Nd5 Rh2 Na6 Qh1 Qd7 Nc3 Re8 Nd1 Rg6 Nf2 d1N+ Ka3 N1c3 Kb2 Rh6 Bg2 h3 g5+ Kf7 f6 Kg6 f5+ Kh5 f7 Kh4 f8B Bf7 Ka3 Rc6 f6 Rb6 Rb1 a1B Be4 Be6 f7 Rc6 Be3 Rb6 Bd4 Rc6 Rg2 h2 Rc1 Rb6 Nd3 Rc6 Re2 Kg4 Nf2+ Kf4 Qg2 h1R g6 Rh8 Qh1 Rb8 Nd1 Rbb6 Rh2 Kg4 Nf2+ Kf4 Bf6 Ke3 Bd4+ Kd2 Bg2 Nd1 Ka2 Ke1 Be4 Kf1 Kb1 Nh6 g8R Ng4 Bh6 Ne5 f8B Bf7 Rg7 Bg8 Bg5 Bc3 Rf7 Bd2 Bfh6 Be3 Rf6 Qe8 Re6 Qd7 Rc2 N1c3+ Kb2 Rc5 Re2 Nc6 Rf6 Na7 Rf3 Nf6 Bc6 Nfd5 Bb5 Rcc6 Rf6 Be6 Rf4 Re8 Re4 Bg8 Rc2 Bef4 Ree2 Be3 Rc1+
2b1kQ2/3qbNR1/4BP2/q2P1PK1/2qn2NR/3r3b/bBP3Nr/Rn2qR2 b - - 0 1 illegal: No possible last move, all moves rejected
1r2Bk1K/QN4P1/1P1NbBrB/1q1Bbn2/1n2bRRq/6P1/3bP2n/4N1n1 b - - 0 1 illegal: No possible last move
b3B2b/1k1R2PN/1r1B1PP1/2Q1qq1p/2K2N2/1n3nb1/N2rnPRB/5Bq1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 a5 Kd3 d5 c4 Kd7 b4 Kc7 g4 h5 g6 e5 b6+ Kb7 c5 e4+ Kd2 e3+ Kd3 e2 b5 e1Q g5 a4 Bh3 a3 Qc2 a2 Qc4 Nc6 Ne2 Qf6 Rh2 Ra6 Rg2 Bd6 Ba3 Nge7 Nbc3 Rd8 Nf4 Na5 Rd1 a1B Na2 Nb3 Rd2 Qee5 c6+ Ka8 c7 Nc6 Bb4 Bb7 c8B Kb8 Qc2 Ba8 b7 Rb6 Bd7 Kc7 b8B+ Kb7 Qc5 Qfe6 Be8 Qd7 Kc2 d3+ Kb1 d4 Rd1 d2 Kc2 Ra6 Kd3 Rb6 Kc4 d3 Ba3 Ncd4 Bb4 Rc6 b6 Nf3 Ba3 Qe2 Bc7 Bh8 g7 Qe5 f6 Qdf5 g6 Rd7 Rg4 Rd8 Bf1 Rd7 Rg2 Rd8 Re1 d1N Bb4 Nc3 Rd1 d2 Ba3 Ka6 b7 Ne2 b8N+ Kb7 Nd7 Rb6 Nf8 Rd7 Nh7 Rd8 Rc1 d1Q Bb8 Bc7 Rc3 Rd2 Rd3 Qb1 Rd8 Qg5 Rd7 Qbf5 Qe3 Qg3 Bd6 Qh2 Qd4 Qg1 Qc5 Qh3 Be7 Qee6+ Nd5 Qhf5 Bf8 Ka6 Be7 Bh2 Bg3 Qee5 Bf4 Bg3 Bf8 Bh4 Bh2 Bg3 Bd6 Qg5 Rd8 Qgf5 Nf4 Kb7 Rd7+
BK2k3/rnPPr2b/RbB2q1r/Q2q1P2/4RN1B/B3p1Rn/4P1q1/1b4N1 b - - 0 1 illegal: No possible last move, all moves rejected
b3bq2/1P2n1rP/B1RQ1r1R/NNB5/R2b1k1q/1n2p3/K1N1PrP1/2q3R1 b - - 0 1 illegal: No proof kernel forced: bxLB
4r2N/P1P4q/2rB1Q1P/2BPrBR1/5N1q/2kpqb1n/Rn3bR1/4b1RK b - - 0 1 illegal: No proof kernel
6B1/rr6/2N3r1/1Pn1P2b/2RBb1PB/kNn2P1K/2rqBbp1/rQ3RR1 b - - 0 1 illegal: No proof kernel
n2Nnnk1/4P1R1/Nb2q1rP/1P2Rb2/N5r1/pB1rPK1n/1n1R1Q2/B4N2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 a5 h4 f5 b4 Kf7 d4 c5 d6 g5 h5 a4 h6 f4 e3 g3+ Kg2 g4 d5 a3 d7 c4 d6 c3 b6 c2 b5 Qe7 d8R Ra6 b7 Nf6 Re8 Bf5 Nh3 f3+ Kg1 g2 Kf2 g1N Nc3 Nbd7 Bd2 c1N b8N Nd3+ Kg3 f2 Ra2 Rc6 Nf4 Nh3 Na4 Bg7 Kg2 g3 Kf3 g2 Ne2 g1R Bc3 Rg8 Ba1 Rc3 Qc2 Nf8 d7 Rg5 Rc8 Ne8 Rg1 Bh8 Rg2 R8g7 d8N+ Kg8 e6 Qd7 e7 Qe6 Ng3 Rb3 Be2 f1N Bd1 Nd2+ Ke2 Nc4 Nf1 Nb6 Na6 Na8 Rc5 Rc3 Qd2 Rg3 Rc2 Nb2 Rg1 Rg2+ Kf3 Rd3 Qf2 R7g5 Re2 Bd4 Re5 Bb6 Rd2 Rg7 Bb3 R2g5 Rh1 Rg1 Rh2 R7g5 Rg2 Rg7 Rg6 Rg4 Rf6 R7g5 Rf7 Rg6 Rg7+
2RR3R/rP1PP1nB/2N2q2/b1Bn1n2/R3Np2/2Q4k/P2n4/1nNr1bKb b - - 0 1 illegal: No proof kernel
1K1N3B/PBrp3q/r1rb4/nRRR4/4b1rB/PPn4P/1kQRn3/1N4r1 b - - 0 1 illegal: No possible last move, all moves rejected
q2r1rBR/BbNR1N2/Rn2q3/1P3P2/n1Q1p2n/P3k2P/N1n5/2b2nKN b - - 0 1 illegal: No proof kernel
b6r/R1b1K3/q1B3qP/b1k1p2Q/6BP/3NB1P1/nbP1R1N1/B1rn1Rb1 b - - 0 1 illegal: No possible last move
3b1bN1/r1bqrb1P/B2R2N1/3N1P2/nKB2Q2/B2P1P1N/p5bq/1n2k1R1 b - - 0 1 illegal: No possible last move, all moves rejected
1n2b1qB/Q1Pp4/1RNK4/bN1P1bPP/kRN5/3r1R2/b2bRB2/2r2n1q b - - 0 1 illegal: No proof kernel
1KB1R1r1/1Q1RN3/4Nn1b/NqPB3k/r3rP1p/1P2b2P/3n1B2/1q2q1Br b - - 0 1 legal: proof: a4 b5 axb5 f5 d4 c5 Kd2 cxd4 Kd3 e5 Kd2 Bb7 f4 Bf3 fxe5 f4 Ra2 Be4 Ra1 f3 Nc3 f2 Nb1 Bf3 gxf3 Bd6 Ra5 Bc5 Ra1 Bf8 Kd3 Kf7 Ke4 Kg6 Kd5 h5 e4 a5 c4 h4 b6 a4 f4 d6 h3 d3 b7 a3 e6 d2 e7 a2 e8N Nc6 b8B Nd4 e5 Qc7 e6 Nf5 e7 Qb6 b3 Ng3 Nf6 Ne4 Qf3 d1Q+ Nd2 Ra4 Bg2 f1R Ba7 Qe1 Ne2 Qb5+ Ke6 d5 e8B+ Kh6 Bg1 g5 c5 d4 Nd5 g4 Ne7 g3 Bd7 d3 Nd4 Ngf6 Nc4 d2 Bc8 d1R Na5 Nd2+ Kd6 Rg8 Qb7 Kh5 Kc7 Bh6 Bd5 g2 Ne6 Rf3 Bf2 g1B Kb8 Re3 Bb2 Ree4 Bbd4 Rc1 Rb1 a1Q Rb2 Nc4 Rd2 Qb1 Rd3 Nd2 Rh2 Rh8 Rg2 Rd1 Rg8 Rc1 Re8 Rg8 Bg3 Be3 Bf2 Qe2 Bc6 Rh1 Bd5 Qee1 Bg1 Nf3 Rd1 Bc1 Bdf2 Be3 Rd3 Nd2 Bc4 Qb6 Rd7 Qb5 Bd5
1b2Nr2/Nq1qn3/2b4K/q1P1p1PN/R1r1B3/3RNPPQ/1n1nk2q/2B2R2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 Ke2 Kf7 Kf3 d5 Kg4 a5 Kh5 e5 c4 d3 b4 d2 g3 a4 b6 d4 b7 d3 f6 Ke6 b5 Kf5 b6 Ke4 f7 a3 c5 a2 f3+ Ke3 Qa4 Qd7 Bb2 d1Q Bg2 d2 Na3 Ne7 Ne2 Qb3 Bh3 d1N Bf5 Nbc6 b8N Nd4 Nf4 Bb7 Be4 Bc6 b7 h6 Qb4 Ra4 Na6 Kf2 Qb5 Rc4 Bc1 Nb2 b8N Rg8 Qa4 Qbb7 Nc7 Nb3 Nc2 Nd2 Ne3 Rh8 Rh4 Rg8 Rb1 a1Q Ne8 Qa2 Qd1 Qa5 Qh1 Rh8 Qh3 Rg8 Ng6 Ke2 Rg4 Nd5 Rh4 Bd6 f8R Ne7 Rf6 Bc7 Rd6 Rf8 Rd3 Bd6 Na6 Bb8 Nac7 Rf5 Nb5 Rf8 Nh8 Nf5 Kg6 h5 Na7 Ne7+ Kh7 Bc7 Kh6 Bb8 Rf4 h4 Ra1 Qac7 Ng6 Qa5 Qg4 h3 Rb1 h2 Qh3 h1Q Rh4 Ke1 Nf4 Kf2 Nh5 Qh2 Bh7 Rc2 Ra4 Nd5 Be4 Rc4 Rba1 Ne7 Rb1 Nf1 Bd2 Ke2 Rc1 Rc2 Rd1 Rc4 Bc1 Nd2 Rf1
1qb1r1k1/Q2B1N1n/Bnr1RPK1/B1b1r3/N1P5/1PP2p2/1NRr1q2/6bN b - - 0 1 illegal: No proof kernel
b1bN1R1K/r2R4/1Q1b1pr1/1n3B2/1q2bBRP/P2nq1N1/RPP3k1/1r2N3 b - - 0 1 illegal: No proof kernel
1K2R2b/3r1k2/2RPNq1R/1Q1r2Pq/BN1R4/4N1np/1P1BP1b1/nn4qn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 a5 Kf3 h5 Ke4 f5+ Ke5 c5 d4 c4 g4 c3 b6 c2 d6 h4 d7+ Kf7 d5 f3 d6 a4 b7 f4 Nh3 a3 Nd2 a2 Nf2 h3 Nde4 Nh6 Ng3 Nc6+ Kd5 Nf5 b8R Qf6 Nd3 f2 Bd2 c1Q Nb4 f3 Qa4 Ncd4 Bg2 f1N Qb5 Nc2 Kc6 f2 Kc7 Ra5 Bc6 Bb7 Re8 Na3 Kb8 Qc5 Rc1 a1N Rc2 Bg7 d8N+ Kg6 Ne6 Nb1 Rc4 Kf7 Rd4 Rh7 Bd7 Bg2 Rh8 Ne7 Nf5 Ng3 Ne3 Nef5 Rc1 f1Q Rc2 Qce5 Rc6 Qg1 Re8 Nh1 Rh8 Rh5 Rh6 Bh8 g6+ Kg8 g7 Nfg3 Nc5 Ra7 Ne6 Kf7 g8R Qc5 Re8 Rd5 Bc8 Rd7 g5 Qc2 Bb7 Qcg6 Ba6 Qh5 Bc8 Rc7 Bd7 Qc1 Qd3 Rf5 Rc5 Rd5 Ba4 Qg1 Qb5 Rd7 Rc6
b1bq4/4nr1B/1P1nnN1B/p4Q2/P2P1N2/1P1r1N1q/K1nR2r1/RB4Bk b - - 0 1 legal: proof: g4 b5 e4 g5 c4 d5 cxb5 f5 h4 Bh6 gxf5 dxe4 Nc3 g4 Nb1 Bg5 hxg5 Kf7 Bc4+ Kf8 Bf1 Ke8 f4 Kd7 a4 Kd6 d4 Kd5 Kd2 h5 Kc2 c5 Kb3 a5 f6 e5 g6 g3 f5 e3 b6 Ke4 g7 e2 f7 e1Q f8N c4+ Ka2 c3 b3 c2 f6 g2 f7 h4 Nd7 h3 f8B h2 Bd6 Ne7 g8B Qe3 Ne2 Kf3 Nbc3 g1R Ka3 e4 Nb1 Na6 Ka2 Nc5 Qd2 Rg2 Bg3 Nb7 Bf2 Nd6 Be1 Ra7 Kb2 Rh3 Rg1 h1B Bf2 Qc3+ Ka2 e3 Nf4 e2 Be3 e1N Bh7 Kg3 Bc4 Kh2 Nf6 Rg3 Bf2 Rd3 Qe3 Rb7 Qe6 Rd7 Bd2 Rc7 Qf5 c1N+ Ka3 Ne2 Ka2 Nc2 Rd1 Rb7 Bf7 Rc7 Bfg6 Rb7 Bc1 Rd7 Rd2 Rb7 N4d5 Nf4 Be3 Ne6 Nf4 Re2 Bf2 Ra7 Be3 Ba8 Bg1+ Kh1 Na3 Re4 Nc4 Re2 Ne5 Rg2 Nf3 Ng8 Rd1 Rf7 Bce3 Ne7 Rd2 Qb4 N4h5 Qb5 Bh6 Qe5 Nf4 Qe3 Nh4 Qg3 Nf3 Qh3 Qh5 Nb4+ Kb2 Rc3 Bb1 Nc2 Ka2 Rd3 Qf5
k1N1b2n/B2q1R1B/P4Qqp/r2rP3/4n1n1/1PR1NK2/4RNP1/1bbb3R b - - 0 1 illegal: No proof kernel
7R/4brNP/1nnp3n/r1NqP3/B1Q5/q3R1PN/BNbP2R1/2rk2Kn b - - 0 1 illegal: No proof kernel
K1B1n1nN/R4n1p/1b2r1Pk/2Q1P1B1/qR2R2q/5BrP/PB3b2/2N2bn1 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 b5 f4 g5 fxg5 Nh6 cxb5 Ng8 b4 axb4 Kd2 f5 Kd3 Kf7 Kd4 Kg6 Kd5 c5 e4 b3 g4 b2 b6 f4 e6 c4 e7 f3 e8R f2 h3 c3 b7 c2 Ba6 f1N Nc3 b1N Nf3 Na3 Rg1 Nc6 b8B Nd2 Ne2 Ne5 Bb2 c1B Qc2 Nf7 Qc5 Nb5 Rb1 Nbd6 Ne5+ Kg7 g6 Qh4 g5 Nf3 Rd1 Be3 Nc1 Bf2 Re1 Ra7 Re7 Ng1 Bc7 Rb7 Bd8 Ne8 Re2 d6 Kc6 Rb3 Ra7 d5 Re3 Bg4 Bc8 d4 Be7 Rc3 Kb7 d3 Ka8 d2 Re1 d1Q Re3 Nfh6 Nf7 Be2 e5 Qda4 Re4 Rg3 Bd8 Bd6 Be7 Bc7 Bd8 Ngf6 Be7 Rf8 Nh8 Bb6 Bd8+ Nf7 Be7 Kg8 g7 Bc4 Bd4 Bf1 Rb4 Ned6 Bd8 Re8 Bb2 Re6 Be7 Nh6 Ng6 Kf7 g8B+ Kg7 Nh8 Nhf7 g6 Kh6 Bd8 Ng5 Bf7 Ng8 Be8 Ngf7 Bc6 Ne8 Bg5+ Kg7 B6d7 Rc6 Bg4 Re6 Be7 Kh6 Bf3 Qb3 Bd8 Qa4 Bg5+
2KRNR2/NP2b2N/2n1n1kp/1R1Pqb1P/1rP1B3/3q4/n3bN1b/B1Qr4 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 axb5 dxe4 f4 Ba6 fxg5 Bc8 Kf2 f5 Ke3 Kf7 Kf4 a5 Ke5 e3 h4 e2 c4 e1B g4 f4 d4 f3 c6 f2 c7 a4 b6 h6 b7 e6 g6+ Kg7 g5 a3 Nf3 a2 Nc3 Rh7 Rb1 a1N Bb2 Na6 Ne4 Nb3 Bg2 f1B Ba1 Nbc5 Qc1 Nb4 Rg1 Bd7 c8N Ne7 Kd6 Ra4 Na7 Na2 Rb5 e5 Bh1 Bd3 Rf1 Bg3 Rd1 Rh8 Nf2 Bh2 Bg2 Rb4 Rd2 Qe8 Kc7 B7f5 Rd1 Qd7+ Kb8 Kg8 g7 Kh7 g8N Ne6 g6+ Kg7 Nf6 e4+ Qf4 e3 Ng5 e2 Ngh7 e1Q Bc6 Nc7 Qc1 Qe5 Be4 Be2 Rd3 Bh3 Rf3 Qdd5 Rf5 Nc6+ Kc8 Rg8 Bc2 Qf3 Be4 Qd3 d5 Be7+ Ne8+ Kh8 Ng4 Rg7 Rf6 Rg8 Rd6 Ne6 Rd8 Rf8 g7+ Kg8 Rd6 Rf1 Nf2 Kf7 g8R Rd1 Rd8 Bf5 Rf8+ Kg6 h5+
q6r/p1qBnk2/P2r4/1rnRK1P1/1b3Q1R/2R2P2/Bb1nP2r/RN4BN b - - 0 1 legal: proof: g4 c5 b4 f5 bxc5 fxg4 d4 e5 dxe5 Qf6 h3 Qd8 Kd2 g5 Ba3 g3 Bg2 g4 Bf3 b6 Ke1 Bb7 Bg2 Bf3 Bf1 g2 Bb2 g3 Bc1 Bg4 hxg4 Qc8 Nc3 Qc7 Nb1 Qd8 Kd2 d5 Kd3 h5 Kd4 b5 c4 h4 a4 b4 g5 b3 a5 b2 f3 h3 e6 h2 a6 Be7 c6 Nd7 c7 Nc5 c8B Rb8 Qa4+ Rb5 Ke5 d4 Be3 d3 Nh3 g1B Nf2 d2 Bh3 d1R Bd7+ Kf8 Bg4 g2 Bh5 Qa8 Bf7 Rd6 Qb4 Bd8 e7+ Kg7 e8R Ba5 Qa4 Bb4 Rd8 Ne7 Bd5 Ne6 c5 Kf7 Ne4 Bf2 c6 g1Q c7 Qc1 c8R Qc7 Ng3 Bfe1 Bg1 Ba3 Nc3 b1N Qc4 Nd2 Nb1 Bb2+ Qd4 Qa5 Rc3 Qc7 Qf4+ Kg6 Bf2 Nc5 Ba2 Kg7 Rf1 h1R Bg1 R1h2 Nh1 Bg3 Rd1 Be1 Rf8 Nde4 Rd5 Nd2 Qd4 Kg6 Rf4 Kg7 Rh4 Kf7 Rc2 Nf1 Rc4 Bb4 Rc3 Nd2 Qf4+
7N/n4BK1/rn2qNB1/1pkb3R/1R1P1b1r/3PQ1N1/PP6/BBr1r1rr b - - 0 1 illegal: Other
3n1n2/KP4N1/PNN1QR2/p3Brnk/6nr/3RPn2/2BR1bP1/R1nq3b b - - 0 1 illegal: No proof kernel
b1n2R2/1NK3P1/1PP2Rq1/2b1BB2/7n/Q1nB2rB/R1pNPr2/n2b2bk b - - 0 1 illegal: No proof kernel
r5nb/2rPR1nb/Q1P2PBN/N7/1b2k3/1rR1rp1b/R3PK2/Nq2R1B1 b - - 0 1 illegal: No possible last move, all moves rejected
qrnBn3/2PpP3/Q1NrBN1n/1b6/1b1PNR2/3n1K2/B1RrP2r/4N1k1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 c5 b4 e5 fxe5 Nf6 bxc5 Ng8 Kf2 Ke7 g4 Ke6 d4 Kd5 c4+ Ke4 g5 f5 g6 h5 b6 a5 c6 f4 c5 f3 g7 a4 e6 h3 b7 a3 c7 a2 c6 h4 Bb2 h2 Bc3 h3 Kg3 Ke3 Qb3 f2 Kg4 Rh6 Qd5 Bb4 e7 Rd6 Qb3 Na6 Nf3 Rb8 Ne1 Nh6+ Kg3 Qf8 g8N Qe8 Rg1 h1R Nd2 h2 Rc1 a1R Rc2 Ra2 Bh3 f1N+ Kg2 Qd8 Ne4 Ng3 Qa3 Ngf5 Rf1 Qf8 Rf4 Rb2 Rc1 Rd2 Ngf6 Ra8 b8N Bc5 Rc2 Rd5 Qa4 Nd6 Ba5 Bb4 Be6 Bb7 c8B Nc7 Rf5 Ba6 Bb7 Bb5 Rh5 Qc8 Bf5 Nce8 Be6 Qd8 Na6 Qb8 Rg5 Nc8 Bd8 Rd6 c7 Qa7 Bbd5 Qb7 Nac5 Rb8 Ba2 Qa8 Rh5 Rf1 Qa5 h1N Rh4 Nf2 Nb7 Rh1 Qa6 Nd3 Na5 Rh2+ Kg3 Nb2 Nc6 Nd3 Ng5 Nf7 Kg4 Kf2 Nge4+ Kg1 Kf3 Nh6 Rf4
3b3K/1Pb3R1/RQP2P2/3P3n/1NNb1r2/2nrr1k1/2R1Bq1p/B1RbBr2 b - - 0 1 illegal: No proof kernel
1q3b2/PQ4NP/2p1b3/2P2qNK/n1bqB1N1/1Pk2N2/1R4BB/b1rRbn2 b - - 0 1 illegal: No proof kernel
1K2bQRB/4R3/1NrRb1k1/pB1b1nqN/P6P/4bqB1/2RPP3/2q3nb b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 exf4 cxd5 a5 b4 b6 b5 Ra6 bxa6 b5 Kf2 g5 Kf3 f5 a4 Kf7 h4 c5 d6 b4 h6 g4+ Kf2 g3+ Kf3 c4 d7 c3 a7 g2 a8R c2 h7 b3 Ra6 b2 Nc3 b1B Ra2 Qg5 d8B Nc6 Ba3 c1Q Bb4 Nge7 Bc5 Bh6 Bd6 Be6 Rc2 Kg6 Nh3 g1Q Nd5 Qa7 B6c7 Qb7 Bg2 Rf8 h8R Rf6 Rg1 Ne5+ Kf2 f3 Rd6 f4 Nb6 Bba2 Re8 Nf5 Qf1 Bad5 Be7 Bd7 Bh1 Re6 Bf6 Qc6 Re7 Be8 Bh8 Qc3 Rdd7 Rc6 Rd6+ Be6 Rg2 Qd3 Kg1 f2+ Kh2 f3 Rg1 Qg4 Bg2 Be3 Nf4+ Kh6 Nh5 Qg5 Bh3 Kg6 Rg4 Nd4 Kg3 Qf5 Qg1 f1B Qf2 Bg2 Qf1 Bh1 Bg2 f2 Bf3 Rc3 Bc6 Nef3 Bb5 Ng1 Bb8 Rc6 Bc7 Kh6 Bb8 Qgf6 Rg8 Qd3 Bc7 Nf5+ Kg4 Bc5 Kf4 Qg5+ Ke5 Qf3 Bb8 Be3 Rd3 Qh3 Qe1 f1B Qf2 Bfg2 Rd4 Ng3+ Qf5 Rc5+ Kd6 Bgc6 Qf7 Nf5+ Kc7 Qf3 Rdd7 Rc4 Kc8 Rc3 Bg3 Bcd5+ Kb8 Rc7 Rd6 Rc6 Ng7 Kh7 Qf8 Kg6 Nh5+
6rR/BpN1P1kN/1q6/1P3bBr/NP3Pq1/2rq4/n1r1r1Q1/bK1R2BB b - - 0 1 illegal: No proof kernel
R2q1rNn/n7/b1rpR3/1r1Pq3/P1B1r2N/P1BB2PK/q4NQ1/1B1nk3 b - - 0 1 legal: proof: h4 b5 f4 g5 hxg5 b4 f5 a5 b3 a4 bxa4 b3 f6 exf6 c3 Bb4 cxb4 f5 Rh4 f4 Rh3 Na6 Rh1 Nb8 Kf2 Ke7 d4 Kd6 e4 c5 g3 f5 Kg2 h5 g6 f3+ Kh2 f4 e5+ Kd5 b5 Ke4 e6 h4 d5 h3 a3 d6 b6 c4 e7 b2 e8B f2 g7 f3 b7 c3 Ra2 c2 Bf7 Rh4 Qd2 Ra5 Bc4 f1R Be8 f2 Beb5 Nh6 g8B Nf7 Ra1 Nh8 Bf7 Nc6 b8N Ba6 Nf3 Na7 Nd7 Rf4 Ra2 Re1 Nh4 f1Q Be8 Rf8 Bg6+ Qf5 Qg2+ Kd4 Bd3 Re4 Nf6 Qe5 Nc3 b1Q Bbc4 Rb5 Bd2 c1R Nd1 Rc3 Rb2 Qa2 Nf2 Rc1 Bc3+ Ke3 Ng8 Rc2 Bd4+ Kd2 Rbb1 Rc3 Rhe1 Rc1 Bb3 Rc6 Bbc4 Rbc5 Rb8 Rb5 Kh1 h2 Ra8 Rf3 Bb1 Rf8 Re3 Ref4 Bgd3 Re4 Rf3 Ke1 Rf6 Ra5 Re6 Rac5 Qh3 Rb5 Kg2 h1N Kh2 Qe7 Qg2 Qd8 Nd1 Nf2 Bb2 Ng4+ Kh3 Ne3 Nf2 Nd1 Bc3+
1n3Rrn/kN6/b1pNK3/PP2Q3/1RP1n2q/NP2R1BR/3r3r/2nBn2n b - - 0 1 illegal: No proof kernel
rR3qN1/4rrNB/bBpR3P/PQ3Bb1/K2P3r/1rP1B1r1/8/k2b1Rn1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 e4 d5 exd5 e4 b3 Nd7 b4 Ne5 fxe5 axb4 a4 Ke7 h4 g5 d4 f5 Kd2 b5 a5 g4 h6 f4 d6+ Ke6 d7 Kd5 e6 c6 h7 f3 e7 b3 Kc3 f2 Kb4 g3 c3 b2 h5 e3 Qc2 e2 Nd2 b1R+ Nb3 e1R Ba3 g2 Qg6 Nh6 Qg5+ Nf5 Ne2 g1R Bc1 Ba6 Ng3 Bh6 e8B Re7 Bg6 Qf8 Bh3 f1R Ne4 Rg3 d8B Rf2 Ka3 Kc4 Bb6 b4+ Ka4 Nh4 Be3 Nf3 Nf6 Ng1 Nc5 b3 Ne6 b2 Ng8 Rff7 Qe5 Bg5 Bhf5 Rc7 Rh4 Rce7 Re4 Kd3 Ng7 Kc2 Qb8 Rd1 Qe5 b1B Qb5 Ba2 Rb1 Bc4 Ra1 Rb1 Re6+ Bd3 Rd6 Rb3 Rf1 Kb2 Be4 Bc2 Bgf5 Bd1 h6 Ka1 Nf6 Rg8 h8R Rh3 Bh7 Rh4 Bef5 Bf4 Ne6 Rg3 Ng7 Qb8 Rf8 Bg5 Ng8 Qd8 Re6 Qd6 Rb8 Qd8 Rf6 Qf8 Rd6
2N2RK1/1qn1kP2/pP1PN2b/r3Q2n/2N1B3/P3q2q/2n1qN1R/r1n1B2B b - - 0 1 illegal: No possible last move
n1b1q3/1n2r2k/N4PRp/Nb1RBR1P/1R2p3/4rqn1/3KPN1P/Q5Bq b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 e6 g3 f4 Qd5 f3 Qd1 Be7 Bg2 Bh4 gxh4 fxg2 b4 Kf8 f4 g5 c4 Kg7 h5 a5 c6 d5 c7 h6 b6 e5 b7 e4 f5 d4 b5 g4 b6 a4 f6+ Kh7 c5 g3 c6 a3 Qb3 d3 Ra2 Qe8 Qa4 Na6 b8B Ne7 b7 Nf5 Nh3 g1Q+ Kd2 g2 Rb2 a2 Na3 a1N Nf2 Ng3 Nc4 Qf1 Na5 g1Q Rb4 Rg8 Ba7 Rg7 b8N Re7 Bb2 Qh3 Be5 Nb3+ Kc3 d2 Qa1 Qe1 Rf1 Nbc5 Kc2 d1B+ Kc1 Bd7 c8R Nb7 Rd8 Nc7 Na6 Bc8 Rd5 Qf5 Bc5 Qf3 Rg1 Qf1 Kd2 Ba4 Be3 Ra7 B3d4 Na8 c7 Bb5 Bb6 Nh1 Rg6 Ng3 Be3 Q1h1 B3d4 Bf5 c8R Bg4 Rcc5 Bc8 Nb8 Ra6 Be3 Rd6 Na6 Rdd7 Nh3 Rc7 Bg1 Rc6 Nf2 Rcc7 Rc1 Rc3 Rf1 Re3 Nd1 Qfg2 Rf5 Qf3 Nf2
Rqr1N3/q6B/3pbR1k/q2nn2P/3Prb2/NbN1B3/R1P2P1p/Q2N1K2 b - - 0 1 illegal: No proof kernel
4Qq1b/R5R1/1P1Pn1nK/2q5/p1N1rr2/1P2Rbrp/1P1B1kbN/1BR4B b - - 0 1 illegal: No proof kernel
2b1n1r1/3kB2p/P1RQq3/3p1R1K/1NP1B1rn/2Nqb1NP/1P3R1r/n4N2 b - - 0 1 illegal: No proof kernel
1R1rNk2/q2qbp2/b4n2/KN1RB1P1/5p1r/nP3nR1/PRq2P1Q/6BN b - - 0 1 illegal: No proof kernel
1n2KbR1/NB2Rp2/1P2R1q1/2P2rnb/1P2p1B1/3q2NP/k4r1r/b4QBB b - - 0 1 illegal: No proof kernel
K1R1Bn2/1rp1R1q1/3N1b2/1nN1P2q/b4PqQ/3pBPB1/2R1P2R/1r1bk3 b - - 0 1 illegal: No proof kernel
rkbR4/1np1B3/P4qQK/1pNB4/3b1R1P/1P2P1Nr/2b1NnB1/q4B1r b - - 0 1 illegal: No proof kernel
R1r4B/2p1Pp2/n2r3P/k3B1Rn/b1Pbqq2/K1N5/1PR1nNN1/3q1Q1N b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 g4 h5 Bh3 Be7 fxg5 Nf6 g6 Bf8 g5 Ng8 Bg4 hxg4 Kd2 a5 Kc3 d5 Kb3 Kd7 e4 g3 h4 g2 c4 d4 g7 d3 b6 Kc6 h5 d2 b7 Kb6 h6 Rh7 e6 Ra6 e5 Nf6 g8R Nc6 b8B Be7 g6 Bc5 e7 Ra8 e8N Bd7 e6 Bf8 e7 a4+ Ka3 Rh8 g7 Qc8 Qf1 d1Q Bf4 Nh5 Ne2 g1N Rh2 Ka5 Be5 Ra7 Nbc3 Qb7 Nf4 Ne2 Ng2 Nb4 Nf6 Na6 Ng4 Qe4 Nf2 Rb7 Nh1 Rb6 Ba7 Rd6 Bg1 Qc1 Bgd4 Qcf4 Rc1 Be8 Rc2 Bc6 Rh4 Bd7 Rg4 Bc6 Ka2 a3 Rg5 Be8 Kb3 a2 Ka3 a1Q+ Na2 Qd1 Nc3 Rh7 Rh8 Bc6 g8N Bg7 Nf6 Ba4 Ra8 Rh8 Ng4 Rc8 Ngf2 Bf6 Rg6 Bg5 Bh8 Bh4 Bdg7 Bf6 Rg4 Bd4 Be5 Rb6 Rg6 Rd6 Rg5
7N/qP3pPq/nRKR2Bk/3rR2Q/4PB2/3p2br/b1PN1bn1/5NrR b - - 0 1 illegal: No possible last move
BN2r1N1/R4kpb/3PrBqn/5Q2/1Brr1P1b/2P2r2/pNKn1PR1/1B6 b - - 0 1 illegal: No proof kernel
6RN/6BN/3P1np1/2NqRPR1/Pk3KQ1/P3rnR1/Bp3brb/bb3r2 b - - 0 1 illegal: No possible last move
N4r2/1bn1R1r1/b1kp1R1R/Q2BP1B1/p6R/3NqPKB/rP1P4/1b1n2b1 b - - 0 1 illegal: No proof kernel forced: bxDB
Rn1kN3/Kn4q1/2p2nRP/n1rPBpQ1/1B2P1Bb/B4rNr/3Pb3/6N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 a5 h4 f5 b4 g5 e4 g4 b6 c6 h6 a4 b7 a3 b5 f3 Ke3 a2 Kd4 f2 b6 g3 h5 g2 h7 Nh6 Nc3 Ng4 Be2 f1R Ba3 Nf6 Bg4 Rf2 Nce2 Rf3 Ng3 Qc7 Rh3 Bh6 Kc5 Bg5 Qb3 Kd7 Qe3 Bh4 Qg5 Kd8 Rh2 Qg7 h6 Rg8 h8N Ra5+ Kd6 Rc5 Nf7+ Ke8 Kc7 Ke7 Nh3 g1N Rg2 Ne2 Nd6 Nd4 Ng1 Nb3 Ne8 Na5 Bb4 Be6 Ba3 Bf7 Kc8 Bh5 Bb4 Na6 b8B Nb7 Be5 Nb8 Bb2 Nd8 B2a3 Nb7 Rc1 a1N Rc4 Nd8 b7 Nb3 Rc1 Na5 Ra1 Nf7 Kc7 Nd6 Kb6 Kd8 Ka7 Rf1 Bh3 Be2 Bg4 Rf3 Ra2 Nd7 b8B Ndb7 Be5 Nb8 Qe3 Qh8 Qf4 Rg6 Qe3 Qg7 Ra1 Rg5 Ra2 Rh5 Qg5 Qh7 Ra1 Qg7 Nh1 Qg6 Bc1 Qg7 Qf4 Rc2 Ka8 Qg5 Bh3 Qg7 Rg6 Nb3 Ng3 Rc5 Bg4 Bg5 Ra5 Rh2 Bca3 Bh4 Qg5 Rh1 Ka7 Rh2 Kb6 Rh3 Ra8 N3a5 Ka7
nKbn1Rk1/N3q2n/P5p1/bp3R1r/nB1P4/b5QP/NB1BPrB1/6N1 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 fxe5 Bd7 gxh5 Bc8 b4 axb4 Kf2 f5 Kg3 Kf7 Kf4 b5 a4 c5 e6+ Ke8 Ke5 c4 d6 g6 h6 c3 h7 b3 e7 Kf7 e8N b2 h3 c2 d7 f4 a5 f3 a6 f2 Bg2 f1N Nc3 b1N Na2 Ne3 Qe1 Ba3 Qg3 Nc3 Nd6+ Kf8 d3 Nf6 Bd2 Na4 Rf1 c1B Rf5 Nd5 Bb4 Qc7 d8B Bd2 Rh2 Qf7 Bda5 Ndb6 Rh1 Be1 Bd2 Ra7 Bab4 Na8 Rh2 Kg7 Rh1 Rf8 h8B+ Kg8 Bg7 Nh7 Bh8 Bd7 Nc8 Nc6+ Kd6 Nd8 Bb2 Qg7 d4 Qe7+ Kd5 Rc7 Na7 Bc8 Rh2 Rc3 Rh1 Rf3 Rh2 Rf2 Rh1 Qg5 Kd6 Re8 Rh2 Re4 Rh1 Rh4 Rh2 Rh5 Rh1 N8b6 Kc7 Na8+ Kb8 Qf6 Nf3 Qg5 Rf1 Qe7 Ng1 Qf8 Be3 Bc3 Bd2 Qe7 Bc5 Ba5 Bcb4 Rf4 Rf2 Rf3 Rf1 Rf2 Rf7 Rf3 Rf6 Rb3 R1f4 Rf3 R4f5 Rf2 Rf8+
3R2rk/1b4Np/4R1q1/1P1bP3/1r3n1b/2B1nP2/1nN1PNp1/QN1bRBK1 b - - 0 1 illegal: No proof kernel
1b2K3/1BR2r1p/N1n1bBR1/prP1P3/Q3PN2/2PNr1n1/B4rB1/1qb1k3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 bxa4 d4 Qf6 dxc5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 d5 b4 f5 g4 a5 b5 d4 g6 Kd5 g5 Kc4 b6 d3 b7 d2 g7 a3 g6 a2 Rh6 Ra7 Nh3 Qb6 Kg5 f4 Bg2 f3 Nf2 Be6 Nc3 Bd6 Nd5 Nf6 g8B Nh5 g7 Nc6 b8N Qb1 Nf4 Kc3 Na6 Rf7 Rg6 Bb8 N2d3 f2 e4 f1R Kh6 Qb7 Rb1 a1B Kg5 Ng3 Rb5 Qd7 Rb7 Bb2 Rc7 Rf2 Kh6 Qd4 Kg5 Qb4 Kh6 Kd4 c3+ Ke3 Qb3 Ba3 Qa4 Qb1 Kg5 Rd7 Kf6 Re7 Bb2 d1R Bc1+ Rdd2 Bf7 Rhe8 g8B Rf3 Ne1 Kf2 Kg7 Re3 Ned3+ Kg1 Kf6 Rf2 Kg7 Rd8 Bd2 Rdd7 Kf8 Bc1 Be8 Rd4 Bd7 Rd6 Bc8 Rf7+ Ke8 Rd4 Bb7 Rb4 Be1 Rbb2 Bd2 Rb5 Nh5 Ree2 Bg5 Re1 Nhf4 Re3 Bh1 Kf1 Bf6 Rd7 Nb2 Ke1 Bg2 Bh3 Bc4 Be6 Ba2 Rf7 Nbd3+
1bn4n/1bb4p/1Nk1R2P/1bBrB3/2p1R2r/1P1RBNPq/2K1nPQ1/3B4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 f5 exf5 g6 cxd5 b4 Qh5 b3 axb3 Qd6 b4 Qd7 b5 Qd8 Qg4 g5 h5 Be6 Qe4 Bc8 Qh4 gxh4 Kd1 Kd7 d4 e5 h6 c5 g3 a5 b3 e4 b6 h3 d6 a4 d5 h2 b7 a3 f6 e3 f7 a2 Na3 e2+ Kd2 e1N Kc3 Qh4 Bc4 Nf3 Bf1 Ra4 Nc4 Ng5 Bd2 Qh3 Kc2 Nc6 b8B Bb7 Be2 Nge7 Bd1 Nc8 Be3 Rg8 Rb1 a1B Nf3 Be5 Re1 h1B Re2 Be7 f8B Bd8 Bc7 Nf7 Nb6+ Ke8 Bb8 Bc7 d7+ Kd8 Ra1 Rh4 Ra4 Nh8 Re4 c4 Bfc5 Rg6 Re1 Rd6 Re2 Ke7 d8R Ba6 Re1 Bb5 Rd7+ Ke8 Re2 Re6 d6 Nd4+ Kd2 Bg2 Re1 Ne2 Kc2 Rf6 Rd8+ Kf7 d7 Ke6 Rg8 Rf7 d8Q Rd7 Qg5 Bh1 Rd8 Rd5 Qf4 Bg2 Rd6+ Ke7 Re6+ Kd8 Rd4 Bed6 Qe4 Bh1 Rd3 Bg2 Na8 Kd7 Nb6+ Kc6 Nd2 Bh1 Qg2 Bd8 Re4 Bf4 Be5 Bc7 Nf3 Bb8 Be5d4 Bfc7 Be5 Rd4 Rg4 Na7 Rg6+ Kb7 Qf1 Nc8 Re6 Nc3 B3f4 Rd7 Ng5 Bg2 Ree3 Ne2 Qg1 Bgc6 Qg2 Rd5 Re4 Ba6 Nf3 Bcb5 Re7 Kc6 Bfe3 Bb7 Re6+
n4Nn1/1r1pNB2/k4b2/1P4P1/r2Br2R/BpP1P2b/1NbRK2N/q2Qb3 b - - 0 1 illegal: No possible last move, all moves rejected
kr1RKb2/n1PP4/1B2Q1N1/1rn2rP1/1R1NB3/PpN4p/4R1bR/q1r1b3 b - - 0 1 illegal: No proof kernel
k3n1r1/Q1prrr2/N2BR1B1/p3P1b1/N4PBb/q1P1B3/P2R4/RK4bn b - - 0 1 legal: proof: e4 f5 exf5 a5 g4 h5 d4 hxg4 b4 e5 dxe5 b6 b5 Ba6 bxa6 Ke7 Bb5 Kf7 Bf1 Ke8 Kd2 d5 h4 Kd7 c3 Kc6 Kc2 g5 f3 d4 h5 d3+ Kb2 d2 a7 Kb7 h6 g3 f6 g2 h7 b5 f7 b4 Qe2 d1R Qd3 b3 Nd2 g4 Rh2 g3 Nc4 Bh6 f8B Nd7 Ne2 g1B Qd6 g2 Qd2 Ne7 Kb1 b2 Ng3 Nf5 Bd6 Re8 h8R Re7 Ne4 Nf6 Qd4 Qf8 Be2 Ne8 Nb6 Bg5 Na4 Bf2 R8h6 g1B Re6 Ng3 f4 Nh1 Bg4 Bfh4 Qc5 Rb8 Qd4 Ka8 Rd2 Rd8 Qb6 Rdd7 Nec5 Rf7 Na6 Rde7 Re2 Rd2 Rh2 Rg2 Be3 Rg3 Rd2 Rg2 Kc2 b1R Qc5 Rb8 Qb6 Rd8 Kb1 Rdd7 Qd4 Kb7 a8B+ Kc8 N6c5 Kb8 Be4 Ka7 Bc2 Ka8 Na6 Bf6 Be2 Rg8 Bg6 Bfg5 Bg4 Rfg7 Rg2 Qf7 Rf6 Qb3+ Rb2 Qa3 Rd2 Rh7 Re6 Rhf7 Qa7#
1b4n1/3bB2N/1b2r1P1/1pb5/RP1k1P1R/nP1R2Qq/R1BK2p1/1N1Nrq2 b - - 0 1 illegal: No proof kernel
3bN1nR/2B1Rr2/2q1rP1N/1k5N/1Rpn4/QP1p1bqn/K1P3Pn/2N4B b - - 0 1 illegal: Other
6qr/K1N3Pb/B2P2Q1/pr2pn1R/1NP2rP1/nN2N1rk/4q3/RB2b1B1 b - - 0 1 illegal: No proof kernel
1r3B2/K1RpRRP1/1n1r2p1/1P2q1bP/b1Q3k1/B7/BRP2q2/n1N1bNb1 b - - 0 1 illegal: No proof kernel
4Q1K1/R2R1N2/1nRn3P/3Bpr1p/qnq1P1bP/2R4P/1Bb1b1k1/2q2N1B b - - 1 2 illegal: No possible last move
1R1b4/pRn1Q1N1/qPn2N1k/1N1P3r/b1qNb1pB/2P1nq2/P5B1/1BK5 b - - 0 1 illegal: No proof kernel
2b1Bq1q/Q4p1N/bb1P1nPp/3b1R2/4Nk1P/K4Nb1/NP5n/B1R3Br b - - 0 1 illegal: Other
n4q2/P1q1npnb/2r1NBR1/2N2P2/2knR3/3P1QB1/1PNp1bB1/K1N4n b - - 0 1 illegal: No possible last move, all moves rejected
1K4B1/nPBRNbpn/2RNk3/2BN1q2/2b1bq1P/b3r2p/1QP4P/3qN3 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 a4 h5 g3 h4 Bc4 h3 Bd3 cxd4 Bf1 b5 axb5 Ra6 Nf3 Rah6 Ng1 Rh4 gxh4 Qc7 Be2 Qb6 Bf1 Qd8 Ke2 Kf7 Kf3 d5 Kf4 d3 Ke5 d4 b4 e6 f4 d2 b6 d3 b5 a4 b7 a3 b6 a2 f6 Bd7 f5 Ba4 Ba3 Na6 b8B Bc6 b7 Be4 Nf3 Nb4 Ne1 Qc8 Qc1 d1B Qb2 d2 Bc4 Be2 Bc7 d1B Nc3 B2d3 Nd5 Bh5 Rd1 a1Q Rg1 Qc1 Rg6 Qe3 Bb3 Bc4 Rd2 Ne7 Kd6 e5 Rd4 Nbc6 Bc5 Qf4 Rd2 Qb8 Kd7 Ng8 Rd1 Qa7 Kc8 Qa5 Rh6 Na7+ Kb8 Bed3 Ba2 e4 Rd2 e3 Rd1 Ke8 f7+ Kd7 Rc6 e2 f6 Be4 Rd3 Bd6 Bb3 Ke6 f8N+ Kf7 Ng6 Ke6 Nge7 Bf7 Rd4 Rh5 Nc8 Re5 Ng2 e1Q Rd2 Bh5 f7 Qd1 Ne1 Nf6 Ba2 Nh7 f8N+ Kf5 Bb3 Bf7 Ng6 Bf8 Nd6+ Ke6 Ba3 Qc5 Nge7 Qcf2 Rd4 Qf5 Bc5 Q2f4 Ng6 Bh1 Ba2 Re3 Nge7 Be4 Nc3 Qd5 Ndc8+ Kd7 B5d6 Ba6 Ng8 Be6 Bb4 Bd6 Nge7 Qdf5 Bd5 Bc4 Ba3 Bf7 Rd2 Bh5 Bg8 Bhf7 Rd5 Ke6 Rd4 Kf6 Rd2 Bce6 Rd5 Bb4 Rd7 Bc5 Nd6 Bc4 Bb4 Ke5 Ncd5+ Ke6 Bc3 Bb4 Bd4 Ba3 Bc5
N2RK3/B3p1b1/q2RP3/P2R3R/5qk1/B2Bq1pr/bb2NPPb/rn1Q4 b - - 1 2 legal: proof: e4 a5 c4 f5 h4 g5 b4 d5 bxa5 g4 cxd5 Nd7 e5 Nc5 Qf3 Ne6 Qe4 Ng5 hxg5 fxe4 Ke2 Kf7 Ke3 Kg6 Kf4 c5 d4 b5 a4 h5 d6 h4 d5 Kh5 d7 c4 Kf5 h3 Ke6 e3 Kf7 b4 a6 c3 g6 c2 d6 b3 a7 e2 g7 e1B Nc3 b2 Nce2 b1Q Ra2 h2 Nf3 Nf6 g8Q Qb4 Ng5 Qda5 d8R Bc3 d7 Bb2 Ne6 Bg7 Nc7 Nd5 Ke8 Nc3 e6 Nb1 Ra3 Bb7 Rd3 Qa6 Rd6 Qf4 Qf8 Bbe5 Ba3 c1B Qg8 Bd5 a5 Bcb2 Qf8 Rb8 a8R Ba2 Ra7 Kg5 Na8 Rh3 Rb7 Rc8 Rb5 Rc1 Rbd5 Qe3 Qf3 Qf4 Rg1 h1Q Qb3 Qe3 Qd1 Qh2 Rh1 Kh4 Ng1 Qhf4 Bd3 Qfd4 Ne2 Bh2 Rc8 g3 d8B Qf6 Bb6 Kg4 Rcd8 Qff4 Bd4 Nc3 Bdc5 Ra1 Ba7 Nb1 Bd4 Rh7 Rc8 Bg1 Ba7 Rh5 Rh3 Bh2 Rcd8 Rh7 Rhh5 Rh6 Rhe5 Rh3 Rh5
nR1r2kr/b1BRPqp1/1npRP3/3q4/1QP2NBN/1B2nBK1/qP6/3q4 b - - 0 1 illegal: No proof kernel
6K1/bb1b3B/nBRPP2p/1P1rNR2/q2QqN2/r1pb2NP/2qk4/2BB4 b - - 0 1 legal: proof: d4 b5 c4 e5 f4 g5 a4 d5 axb5 Nd7 dxe5 gxf4 Bd2 d4 Be3 Nb6 Bc1 Nd5 cxd5 Ba3 Kd2 Be7 Ke1 Bf8 Kf2 Kd7 Kf3 c5 Kg4 a5 Kh5 f5 e4 a4 b4 d3 g4 c4 g5 a3 e6+ Kd6 g6 Ke5 d6 Kd4 e5 a2 e7 d2 e8N Ke3 h3 f3 e6 f2 g7 f4 b6 f3 b7 c3 b8B Ne7 Kh6 Nc6 b5 Nb4 Na3 Na6 Bb2 Bd7 Be2 f1B Bc7 f2 Nf6 Bg2 Ne4 f1B Ng3 Bb7 Rh2 Be7 g8B Bf6 Rf2 Bd4 Rf5 Ba7 Kg7 Qh4 Bb6+ Qd4+ Kf7 h6 Bg4 Bd3 Bh7 Rhc8 N1e2 Rc5 Nf4 Rd5 Qa4 d1Q Nc4+ Kf2 Qb4 Ke1 Ne5 Qe4 Qd4 Kd2 Bf3 Qc2 Bd1 Rc8 Kg7 Rc4 Kg8 Ra4 Rc1 a1Q Rb1 Qa3 Ra1 Ra5 Ra2 Qab3 Ra4 Qa2 Rc4 Ra3 Rc8 Qc4 Rc6 Q4a4 Bc1+
6bb/3bP1pR/2n2B2/p1RR3b/1Qr2N2/2qP1PP1/kr1N1qBK/1BRq4 b - - 0 1 illegal: Other
3RqRnK/3Pp1R1/6NN/2B1q1Nb/1r2R1B1/2P1P1bp/3q1brP/3q2Qk b - - 1 2 illegal: No possible last move, all moves rejected
R2B2K1/3P1p2/1nk2P2/5NnQ/qpqB1PqB/n2BRb1R/1P1n1N2/b1q5 b - - 0 1 illegal: No proof kernel
2n2n1Q/6r1/q1pRkPp1/b2p2B1/1P1Bb1NP/1r3b1B/2N1PR1r/2N1K2N b - - 0 1 illegal: No proof kernel
1B2rrnR/R3q1Nb/2p1P1n1/KbQ1k1Bp/5R1p/n1P1P2P/2R3bN/1B6 b - - 0 1 illegal: No possible last move
2rn1r2/qR3bnK/p5R1/pb2NnpP/PPbN2Q1/1BkB4/2N1P3/B2N4 b - - 0 1 illegal: No proof kernel
3N2b1/1Np1bbk1/KNq2B2/1P3p1R/PRP3Q1/r1P3n1/1NrR3p/n4Br1 b - - 0 1 illegal: No proof kernel
B1b1qr1R/1P1PBp1n/3rb3/2N1pp1R/NN2P2b/B1P2nQ1/8/1Kn2Bk1 b - - 0 1 illegal: No proof kernel
r1NKN3/Pp1BN1PB/1P3R1p/5R2/7Q/1rBPn1br/knq4p/2b3nN b - - 0 1 illegal: No proof kernel
2R1B1q1/1qNK1b2/RrNpP3/Nr1Pk3/Q5Bp/1B2P2n/1NpqP3/3nb3 b - - 0 1 illegal: No proof kernel
1kBR2rb/3R2n1/bbP2q2/BNp1p1Rp/2P3nP/QKP1B3/1B6/1r2N2q b - - 0 1 illegal: No proof kernel
1q1rQB2/n5KP/1p1bB2P/3N4/NBP1pr2/1P1RN1pq/1Bq1k3/b5nR b - - 0 1 legal: proof: e4 c5 d4 cxd4 a4 h5 g4 f5 exf5 b6 gxh5 Nf6 a5 Ng8 a6 Bb7 axb7 Rh6 Nd2 Rh7 Nb1 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 d5+ Kf4 a5 c4 a4 h4 d3 b3 d2 h6 a3 h5 a2 h7 d4 h6 d3 Ne2 Nd7 b8N Ne5 Na3 Nf3 Qe1 d1Q Nc2 d2 Na6 Ng1 Nc7 Qb8 Nc3 Qh5 Bh3 d1Q Ne3 Qc2 Bb2 e6 f3 Ne7 Rd1 a1B Rd3 Nc6 Na4+ e5+ Ke4 Kg5 f6 g6 f7 Na7 Be6 Qh3 Ncd5 Bd6 f8B Kh5 f4 g5 f5 g4 f6 g3 Be7 Rf8 f7 Rd8 Ng4 Rf8 Kf5 Rd8 Kf6 e4 f8B Kh4 Qc3 Kh5 Nge3 Kh4 Nf5+ Kg4 Nfe3+ Kf3 Kg7 Ke2 Qe5 Bc7 Bc5 Bd6 Be7 Rf8 Bb4 Rf4 Bf8 Qc7+ Bf7 Rd8 Qe8 Qb8 Be6
4NR2/b1kRp2n/2b2R1r/4r2B/1P1B1R1P/2p2q2/K1PqpNBP/2qn1Q2 b - - 0 1 illegal: No possible last move
Q2R2R1/1bRPbpP1/6bn/q2q1pr1/PB2NPB1/1R1nN3/2BKpk2/6r1 b - - 0 1 illegal: No proof kernel
1bR2qr1/2P5/1n1Bqp1B/3B1b1K/2P1P2B/5pNn/r2PR1pr/2NkN1Q1 b - - 0 1 illegal: No proof kernel
R5nq/p1bP4/n1bBp1k1/P1B2B1R/3P2N1/K1pN4/QN1r1P1N/3qr2b b - - 0 1 legal: proof: e4 d5 exd5 g5 c4 b5 h4 bxc4 hxg5 Bd7 Qe2 Bh3 Qd1 Bc8 b4 h5 g4 f5 d4 Kf7 Kd2 c5 Kc3 e6 Kb2 c3+ Ka3 c2 g6+ Kg7 g5 c4 d6 c3 d7 h4 Qe2 h3 Nf3 h2 Bg2 Ne7 b5 Qb6 Ne1 Rg8 Nd3 Qc7 b6 Nbc6 b7 Na5 b8B Qe5 Be4 Nb3 Bd6 Qf6 Nd2 Bb7 Nc4 Na5 Ncb2 Bd5 Rb1 Kh8 g7+ Kh7 Qd2 Rh8 g8N Nb7 Nh6 Nc5 Ng4 Bc6 g6+ Kg7 Qe2 Na6 Bc5 Rc8 Bf4 c1Q Bfd6 Qd1 Qc2 Rb8 Qd2 Kg8 g7 Kf7 g8N Kg6 N8h6 Ng8 Qe2 Qc2 Rbg1 Qd1 Rg3 Qd8 Rh3 Bg7 Rh5 Be5 Rg1 h1B Nh2+ Bg3 N6g4 Qf6 Qc2 Rh7 Rg2 Qh8 Nc4 Rg7 Nge5+ Kf6 Bf8 Bd5 Ka4 Rb7 a3 Rb3 Qa2 Ne7 Rg1 Bf4 Rg2 Rg3 Rg1 Re3 Rg8 Ba8 Neg4+ Kf7 Qc2 Re1 Qa2 Qg7 Rgh8 Bc7 Rg8 Kg6 Rgh8 Ng8 Bfd6 Nf6 Rf8 Bb7 Ra8 Qh8 Bf8 Qa1 Bfd6 Rbb1 Ncb2 Ng8 Kb3 Bc6 a4 Rbd1 a5 Rd2 Ka3 Qd1 Bxf5+
Nr5b/k3PrPb/1RNB1R2/1K1n2q1/PBpQbn2/p1P3B1/p4R2/B6b b - - 0 1 illegal: No proof kernel
3N3B/K2p2r1/2R4P/1b1rNkrQ/1P2pR2/2pBPbB1/nB1P3n/2rq3N b - - 0 1 legal: proof: f4 g5 a4 b5 axb5 h6 fxg5 h5 g4 hxg4 c4 Bg7 c5 Bc3 b3 Ba5 b4 Bb6 cxb6 Ba6 Kf2 Bb7 Ke1 Bc8 Kf2 f5 Ke3 Kf7 Kd4 Ke6 Kc5 a5 h4 a4 g6 g3 g7 a3 b7 g2 e3 f4 b6 a2 h5 f3 h6 f2 Qc2 Na6+ Kb5 c5 b8B c4 b7 c3 Qh7 Nc5 Bd6 Nd3 b8B Bb7 Nh3 g1R Be5 Qf8 Kb6 Nf6 g8N Ra5 Na3 Rd5 Bb2 Nc1 Qf7+ Kf5 Nc4 Rg5 Ka7 Rh7 Qh5 Ng4 Bh8 Rg7 Bg3 Nh2 Ne5 e6 Be2 f1B Nf2 Qe8 Ba6 Bb5 Rg1 Ba8 Nh1 Qg6 Rb1 a1R Rg2 Na2 Ne7+ Kf6 Rc1 Qb1 N7c6 Kf5 Nd8 Bac6 Re1 Qd1 Ree2 Rc1 Ref2+ Ke4 Rf6 Ba8 Rgf2 Bb7 Nf3 e5 Rc6 Kf5 Rf1 e4 Rf2 Be2 Bc4 Ba6 Ne5+ Bf3 Bd3 Ng4 Rh2 Bb5 Rh4 Nh2 Rf4+
7q/1P3nr1/Rp2n2N/PnB1N2r/1p1P2Bp/2bnN1R1/NPKBQ2k/6b1 b - - 0 1 illegal: No proof kernel
2B3KR/bpNPqQ2/4N1P1/8/1RpP3p/1NN2P1b/1rn3B1/1rBnkrr1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kf7 Ke3 e5 Ke4 c5 g4 h5 d4 c4 a4 b3 f6 Kg6 f7 b2 d6 Rh6 Kd5 e4 a5 e3 a6 e2 a7 e1R Ne2 Qe8 Bg2 Na6 Ra4 Rh7 Nbc3 b1R Rb4 Rg1 Qf1 Ne7+ Ke5 Rb8 a8N Nf5+ Kd5 Qd7 Nc7 Ne3+ Ke5 Nd1 Rh3 Kg7 g6 Qe7+ Kd5 Kf6 g5+ Kf5 g7 Kg4 g8B Rh6 Rh1 Rf6 g6 Ra8 Rh3 Bh6 f8N Bf4 Nfe6 h4 Rf3 Bg3 Rf5 Rb2 Rh5 Rf4 Rh8 Ra7 Rb5 Nb4+ Ke5 Nc2 Rb4 Bd7 Bf7 Ra1 Be8 Bc6 Bd7 Rab1 Bc8 Be4 d7 Bf5 Ne4 Bh2 Nc5 Rf3+ Kd5 Bd6 Nb3 Bc5 Nc3 Bb6 Qe1 Ba7 Qe5 Rf4 Qg7 Rf3 Qf7 Rf4 Bh3+ Kf3 Bf1 Bh3 Ke5 Qf6+ Kd6 Qe5+ Ke7 Qf6+ Kf8 Qe7+ Kg8 Rf5 Bd3 Kg2 Be4+ Kf1 Bg2+ Ke1 Ra4 Rg5 f3 Rf1 Rb4 Rg3 Bh1 Rgg1 Bg2
bR2Brbb/2N5/q4prp/RR1q4/NQB2n2/2NP1NpP/P2q2Pk/K7 b - - 0 2 legal: proof: c4 e5 b4 d5 cxd5 a5 bxa5 e4 Qc2 e3 Qb3 Qd7 Qd1 Qd8 f4 Qd6 f5 Qc6 d3 Na6 Bd2 exd2+ Kf2 Qb5 e4 Qd7 e5 Nc5 Ke2 Ne6 fxe6 Qd8 h3 Ke7 a6 c5 a7 b5 Qc1 d1B+ Kd2 g5 Kc3 h6 Kb2 g4 Nc3 c4 Qd2 f6 Kb1 b4 Qe3 b3 Rh2 b2 Qb6 Bf3 Be2 Bg7 Bd1 Qd6 Qb8 Qa6 Rh1 Bd7 Qb6 Rf8 a8N Rh7 Qd4 Bh8 Nb6 Rg7 Bb3 Rg6 Nba4 Bc6 Qb6 Ba8 Qa5 Be4 Nf3 Bf5 Rf1 Be4 Ne2 c3 Bc4 Bf5 Kc2 Be4 Rab1 Bf5 Kb3 c2 Nec3 c1Q Ka3 Qd2 d6+ Ke8 e7 Kd7 e8N Be6 Qc5 Ne7 Qb4 Bg8 Nc7 Nd5 e6+ Kc6 e7 Nf4 d7 g3 Rbe1 b1Q Re5 Qbe1 e8B Qe4 Ra5 Qd5 Qb8 Kd6 Rb1 Kc6 Rbb5 Kd6 Ng5 Ke5 d8R Kd4 Nf3+ Ke3 Qb7 Kf2 Rb8 Qe1 Kb2 Qd2+ Ka1 Kf1 Nd4 Kg1 Qb6 Kh1 Qc5 Kg1 Qb4 Kh2 Nf3+
3qBNRK/2nBR2B/4r3/2b2p2/3P1kpQ/b1q2NBr/2p1PPP1/1q1Rr3 b - - 1 2 illegal: No possible last move, all moves rejected
6n1/rPpr3N/bpBr1rNP/1nRN1QR1/2P1r1B1/P3BNKp/8/1q3k2 b - - 0 1 illegal: No proof kernel
1KB1n1B1/2Qp1n1p/2q1bn1R/2rn4/2N5/1P1n2bP/RP1p1Pk1/2BNN2N b - - 0 1 legal: proof: e4 a5 d4 c5 g4 cxd4 e5 f5 gxf5 b5 Nd2 b4 Nb1 b3 axb3 Ra7 Bh3 Ra6 Bf1 Rf6 exf6 Qb6 Qf3 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 g5 Kd5 e4 c4 d3 h3 g4 c5 a4 c6 g3 c7 a3 Bg2 e3 Ke5 e2 Be3 e1N Qd2 a2 Nf3 Ba6 c8B Qb6 Qa5 Qc6 Qc7 Bc4 Bc1 d2 Nc3 Na6 Nd1 Be6 Rg1 Bc5 Bf1 g2 Bc4 Ba7 Bd5 Bb8 Bc4 Qb7 Kd6 Nd3 Re1 g1N Re4 Qb5 Ne1 Nf3 Rh4 Nfe5 Rh6 Qa4 Rb1 a1N Bd5 Nc2 Ra1 Ng6 Ra2 Nge5 Bc4 Ne3 Bd5 Kf8 f7 Kg7 f8N Nf6 Ng6 Qb5 Bc4 Ned5 Nf4 Kf7 Nh5 Rg8 Ng3 Rg5 Nh1 Qb7 Rh4 Kg7 Rf4 Kh6 Rh4+ Rh5 Ra1 Kg5 Ra2 Nfg4 f6 Kf4 f7 Qb5 Ng2+ Kf3 f8N Ngf6 Ng6 Qa4 Nge3 Rf5 Nc2 Kg2 Rh5 N5b4 Rh6 Qc6+ Ke7 Nbd5+ Kd8 Nf3 Ne5 Ng5 Qb6 Nac7 Ne1+ Kf1 Qa5 Nce8 Qc7 Kg1 Bb7 Nf7+ Kc8 Ba7 Bba6 Bc5 Kb8 Bd6 Bc8 Kf1 Ng4 Bg3 Ne5 Nb4 Ng6 Rc5 Ne5 Kg1 Bd5 Kf1 Nc4 Kg1 Nf3+ Kg2 Ne1+ Kh2 Ra1 Nfe5 Ng2 Bg4 Bg8 Nbd5 Nce3 Nf7 Nc4 Be6 Ne1 Kg1 Ra2 Kf1 Nc2 Kg2 Ne1+
KR6/1QR3p1/P2pb3/P5Nr/bNP1R3/bB4PN/n3pkn1/BqNb1b2 b - - 0 1 illegal: No proof kernel
1B2BRBn/R1Pp1nk1/Nr1np3/P4P1N/4b2K/3qn1p1/3P3B/2Qnb2N b - - 0 1 illegal: No proof kernel
B2Qn1RR/NqbPp1p1/2BNP2B/5bPK/1r2q1Pp/2R2b1r/1B3b2/3k4 b - - 1 2 illegal: No proof kernel forced: wxDB
1B1QnrB1/3nNpPK/n6p/R7/2pB1qNr/Pq3P1P/1bkR4/2BR1n2 b - - 0 2 legal: proof: c4 g5 d3 g4 h3 Nc6 Bf4 Nb8 Bh2 g3 Qd2 gxh2 Qc1 Na6 Qd1 Nb8 e4 d5 exd5 a5 b4 Ra7 bxa5 Be6 d6 Bd5 cxd5 Ra8 Kd2 Kd7 Ke3 b5 Kf4 c5 Kg5 b4 g4 b3 a6 b2 a3 c4 d4 Qc8 a7 e5 Nc3 b1Q Nf3 e4 Bd3 e3 Ne5+ Ke8 f3 e2 d7+ Ke7 d8B+ Kd6 Bc7+ Ke7 d6+ Ke6 d7 e1N d8B Nd7 Bb8 Nh6 Nd5 Qa6 Bf6 Bc5 Ne7 Nc2 Re1 h1N Re3 Nf8 Bg6 Qab5 Rd3 Nf5 Qd2 Q1b2 Rd1 Nd6 Kh6 Q5b3 g5 Nd7 Ng4 Ng3 Qa5 Qc1 Qd8 Nf1 Kg7 h6 Bh7 Nb4 g6 Rf8 Bg8 Na6 Kh7 Ne8 g7 Qf4 Bg5 Bb6 Bf6 Bc7 d5+ Kd6 Bc3 Kc5 d6 Ba5 Bb2 Bc3 Bc1 Be5 Nc6 Bb2 Ne7 Ne5 d7 Kb5 Qb6+ Ka4 d8B Nd7 Qd6 Nb4 Bb6 Na6 B8c7 Rb8 Bd4 Rb5 a8R Rh5 Bb8 Rh4 Qd5 Qc3 Qa5+ Kb3 Qd8 Kc2 Ra7 Qb3 Ra8 Nb4 Ra5 Na6 R3d2+
2B4B/P2R3r/K2p4/P1N1RQ1q/b2qBR1b/NP1P2n1/kp3pnq/3B1q2 b - - 0 1 legal: proof: h4 b5 f4 g5 hxg5 a5 Rh2 e5 Rh5 exf4 Rh1 b4 b3 a4 bxa4 b3 a5 b2 Rh6 Ra7 Rh3 Rb7 Rh1 Rb3 cxb3 Bh6 Na3 Bg7 Nb1 Bf8 e4 Ke7 Ke2 Kd6 Kd3 Kc5 a4 Kb4 g4 h5 g6 c5 g5 f5 e5 f3 e6 f4 g7 f2 a6 d6 a7 f3 g6 h4 e7 h3 e8R h2 a5 Qf6 Re5 Nh6 g8B Bg7 Nh3 Nd7 Qc2 Nf5 Be2 f1Q Nf4 f2 Bh7 Nb6 Na3 Nc4 Ne6 Nce3 Qb1 Qg1 Bd1 Bd7 Qc2 Bh6 g7 Ng3 g8B Ba4 Be4 c4+ Kd4 c3 Nc5 Rh7 Be6 Qh8 Bc8 Ng2 d3 Qf6 Bf4 Bg5 Qe2 c2 Qh5 Bh4 Qf5 c1Q Bg5 Qd8 Bf6 Qb6 Bh8 Qf1 Rg1 h1Q Ra2 Qe2 Re1 Qef1 Re7 Qg5 Rd7 Qh2 Ra1 Nh1 Re3 Qg6 Rf3 Qh5 Rf4 Ng3 Rc1 Qd8 Rc2 Qdg5 Re2 Qg7+ Kd5 Kc3 Re1 Kd2 Kc4 Kc1 Bd5 Qf6 Re5 Qg7 Be4 Qf6 Nc2 Kb1 Na3+ Ka2 Rg7 Be8 Rd7 Qg7 Kb5 Qf6 Re6 Qe5 Ka6 Qd4 Rd8 Bc6 Rd7 Ba4 Re5
B5Br/PK6/p2Prnb1/P3B1n1/6pQ/kB2n1bn/PR1R2Np/2N1Rb2 b - - 0 1 illegal: No proof kernel
b1n1K1Rb/N2rnrpP/2B5/1p1N1n1R/n2p1k2/BQ2N3/PP1R1P2/2rN4 b - - 0 1 illegal: Other
N1N2BQ1/1p1K1Pqp/3PR2n/bp2r3/q3RN1P/3bbBN1/1P3b2/B4kb1 b - - 0 1 illegal: Other
2N2k1N/3rrp1n/q4N1P/R1p2K1n/2P1BBnR/Np3nPq/RPQ5/1r6 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 g4 hxg4 Ra2 b4 Ra3 Ba6 Ra1 Bb5 axb5 Bd6 Ra5 Be7 Ra1 Bf8 Bh6 g5 Qd3 g3 Qe4 g4 Ra4 g2 Qd5 g3 Ra1 Be7 Bc1 Bh4 Nf3 g1N Qd2 g2 Qd1 Bg3 fxg3 Rh6 Bf4 Rh3 Bc1 Rh8 Kf2 c5 Ke3 d5 Kf4 a5 c4 a4 h4 a3 e4 a2 h5 d4 b6 b3 b7 d3 h6 d2 e6 Qa5 e5 Qd8 e7 Ra3 Kf5 Nd7 b8R Ra7 Bd3 Nf8 Qc2 d1N Na3 Nf6 Be4 Rd7 Nh4 Nf2 Ng6 Qc8 Rh4 Nh5 Bf4 Ng4 Ra8 Nf3 Ra5 Rg8 Nh8 g1R Rb1 a1Q Rf1 Qa2 Ra1 Qb1 Ra2 Qf1 Ra4 Qa6 Ra5 Rd6 Qd2 Qh3 Qc2 Kd7 e8N Ke7 e6 Rb1 Nf6 Nh7 Nd5+ Ke8 Ne7 Rd7 Nc8 Rg6 Qd2 Kf8 e7+ Kg8 e8N Re6 Qd1 Kf8 Qc2 Ree7 Nf6
nQK3B1/3BNk1p/1bR1Nr1P/r7/pP2n1pP/1P3RRp/7b/1qB2b1B b - - 0 1 illegal: Other
n3B1r1/b2K1Pr1/PpN2NB1/1kq2P1N/1b4pB/2N3p1/1Pp5/Q2RnRb1 b - - 0 1 illegal: No proof kernel
R1b1b3/3pbr1Q/4rPN1/pNp3B1/kn1PP1RR/3R1P1K/n1N1p3/2Bq4 b - - 0 1 illegal: No proof kernel
n1Bn1b2/1N1pR1P1/3Pp3/Pr2pQRp/5n1N/2KN1r1b/q2PN2k/4BB2 b - - 0 1 legal: proof: e4 a5 c4 g5 h4 f6 hxg5 c6 b4 Qc7 bxa5 Qd6 e5 Qd5 cxd5 fxe5 f4 Kf7 a4 Kg6 g4 b5 f5+ Kg7 g6 Kf6 g7 Kg5 f6 Kf4 f7 Kg3 g5 b4 d6 e6 a6 b3 a7 b2 g6 c5 a5 c4 Ne2+ Kg4 Na3 b1Q Qc2 h6 Kd1 c3 Nc4 Qb6 Nb2 Bb7 Nd3 Ba6 Ba3 Qb7 Bc5 Nc6 Bf2 Qb3 Be1 Nf6 g8N Ne8 Ne7 Rb8 a8B Rb5 Bb7 Qa2 Bc8 Nd8 Nc6 Nc7 g7 h5 Rg1+ Kf3 Rg5 Na8 Qb1 c2+ Kc1 Be7 f8N Bb7 Ng6 Rf8 Qb4 Rf7 Qb1 Bf8 Nh4+ Ke4 Rg6 Rf3 Rf6 Ba6 Rf7 Bb7 Re7 Ba6 Ng2 Kf5 Nh4+ Kg4 Nc5 Bb7 Nb4 Be4 Nbd3 Bf5 Ng2 Kh3 Nh4+ Kh2 Nb7 Qb3 Ra4 Bh3 Rg4 Qa4 Rg5 Qa2 Qb4 Qd5 Kb2 c1N Kc3 Qa2 Ng1 Qb1 Qg4 Ne2+ Kc4 Nf4 Kc3 Qa2 Ne2 Ng2 Qe4 Nf4 Qf5
qN6/N3qrB1/nN1pQ3/r1b1n2N/pP1P1PkP/2Rp1b1R/p4KB1/2B5 b - - 0 1 illegal: Other
4q2Q/2B5/KpbpPr1q/5P1B/1pP1p2N/1Pk2nRN/B2R1bR1/3rBn2 b - - 0 1 illegal: No proof kernel
bRQ2B1N/PB3qPP/p2r2NB/pnRp1n1K/3P3b/8/B2rp3/4N1kq b - - 0 1 illegal: No proof kernel
4nN1r/1r5B/1PRQB1P1/1R5k/nK1N1n2/1Npp2p1/rNpBbPP1/3q4 b - - 0 1 illegal: No proof kernel
R3R3/2B2pNN/q1kbpn2/1p2PRn1/P1p1BnqP/P6r/1N1rR3/K5Q1 b - - 0 1 legal: proof: g4 h5 c4 d5 cxd5 a5 b3 a4 bxa4 Bd7 Na3 Bf5 Nb1 Bc8 f3 hxg4 Ba3 g3 Bc1 g2 Bb2 g5 Bc1 g4 Nh3 g3 Ng1 Bg4 fxg4 Rh6 Nf3 Rh4 Ng1 Rh8 d4 Kd7 Kd2 c5 Kc2 b5 Kb2 c4 h4 Nf6 e4 Nh5 d6 Ra7 g5 Rc7 d5 Bg7+ Nc3 Rh7 a3 Rc6 g6 Qf8 Nh3 g1N Bf4 g2 Ng5 Bf6 g7 Qc8 g8R Rc7 Bd3 Rb7 Ra2 Qd8 Re8 Bh8 Ka1 Be5 Re2 Nh3 Rf1 Rg7 Nh7 g1Q Rff2 Qg4 Qg1 Ng5 Rf3 Kc8 d7+ Kc7 d6+ Kc6 Bc2 Qc8 d8R Rc7 d7 Bd6 Nd1 Qa6 Nb2 Rg6 Rff2 Rf6 Bg3 Rf3 Rf1 Rb3 Rf5 Nf4 Rc8 Rf3 Bh2 Rh3 d8N+ Kd7 Ne6 Kc6 Bb1 Nd7 Ng7 e6 Ra8 Nf6 Bc2 Rd7 Bg3 Be7 Bh2 Rd2 Bg3 N4d5 Bc7 Nf4 e5 Bd6 Be4+
3Rnq2/N1p3Pp/1B1pnb1Q/p1PP1RrN/1b1k2P1/4q1BB/1K6/3Nn1B1 b - - 0 2 legal: proof: e4 b5 f4 a5 g4 g5 a4 gxf4 axb5 d6 h3 Bd7 e5 Na6 e6 Qb8 Ke2 Bh6 Kf2 Qb6+ Ke1 Kf8 exd7 Kg7 Bg2 Kf6 h4 Bf8 Bh3 Ke6 Bf1 Nf6 Qf3 Rg8 Qd1 Rg5 hxg5 Ng8 Na3 Rd8 Nb1 Bh6 Na3 Nf6 Bg2 Rh8 Nb1 Ng8 Bf1 Bf8 d8N+ Kd5 d4 f5 Kd2 e5 Kc3 f3 b4 f2 g6 f4 g7 f3 Bf4 e4 Qc1 e3 Bg3 e2 Rh5+ Ke4 d5 e1B+ Kb2 Qb7 c4 Nh6 b6 Qb8 b7 Nf7 b5 Ne5 b6 Nc5 Qh6 Ne6 Nc6 Nd7 Ne2 Nf6 Na7 Qe8 b8B Be7 b7 Rf8 Bh3 f1N Nf4 f2 Rf5 Kd4 Nc3 Nh2 Rb1 f1Q Nd1 Bb4 Nh5 Bd8 Nc8 Nf3 Ba7+ Kd3 b8B Ne1 Bg1 Qf2+ Kc1 Kd4 c5 Qe3+ Kb2 Rf7 Ba7 Qf8 Bb6 Ne8 Na7 Rf6 Rc1 Rg6 Rc2 Rg5 Rcf2 Qg8 Rf8 Bf6 Rf5 Qh8 Rf7 Qg8 Rd7 Qf8 Rd8
2N1q1nK/1B6/P7/p1P3B1/P1q1R1qp/rP1R1pNp/1nN2b2/1k1BrN1Q b - - 0 1 illegal: No proof kernel
r1n3Q1/2pprpb1/nPN4R/B2Pp1N1/6bP/3Br1k1/1NP1B3/2NR1nK1 b - - 0 2 legal: proof: f4 b5 g4 h5 a4 g5 Bg2 e6 Bf1 Nc6 gxh5 g4 axb5 Qg5 fxg5 Nd4 Ra4 Nxe2 Ra6 Bb4 Ra1 Bf8 Kf2 Ke7 b4 Kd6 d4 a5 h6 a4 h7 e5 d5 a3 b6 a2 b5 Ra3 g6 Ba6 b7 Ra4 b8N Ng3 b6 Bd3 g7 Ne7 Nc6 Nc8 Nf3 Bf5 Nbd2 Ra8 Kg1 Kc5 Be2 Nf1 Nc4 g3 Ng5 g2 Nb2 Bg4 Bd2 Rg8 Rc1 a1N h8N Nb3 Ng6 Rh8 g8B Bg7 Bh7 Re8 Nf4 Re7 Nbd3+ Kc4 Ba5 Nc5 h3 Na6 Nb2+ Kc5 Nfd3+ Kd6 Kf2 g1R Ra1 Rg3 Nc1 Rf3+ Kg1 Re3 Bhd3 Kc5 Qe1 Bf5 Qh4 Be6 Qh8 Bg4 Nb8 Kd4 Qg8 Rf3 Nc6+ Ke3 Na2 Kf4 Rd1 Re3 Nc1 Kg3 Rh2 Be6 h4 Re4 Rf2 Re3 Rf6 Bg4 Rh6
nRR2K2/1N4p1/1P1p1p2/2rbBN1r/bk1P2rP/1r1B3p/1N3R1P/2qN2Q1 b - - 0 2 legal: proof: b4 h5 f4 e5 a4 exf4 a5 b6 axb6 h4 g3 h3 b5 Be7 c3 Bh4 gxh4 Na6 Ra2 Nf6 Ra1 Nb4 cxb4 Ng8 Kf2 Ke7 Kf3 Kd6 Kg4 c5 Kf5 a5 d4 c4 e4 a4 e5+ Kd5 b7 f3 b8R a3 b6 f6 Kg6 f2 Kf7 a2 e6 c3 e7 c2 e8N Ra3 b5 Bb7 Ne2 Kc4 Nf4+ Kb4 Nd6 Rh6 Nf5 d6 Bd3 f1B Nc3 Qd7+ Kf8 Bd5 b7 Rh5 b6 Ne7 Bd2 Rb3 Rc1 Bfg2 Qg1 Qc7 Nd1+ Qc3 Be1 a1R Bg3 Qe1 Ne6 Ra5 Be5 Rc5 Nf4 Qd2 Qf2 Bc6 Rf1 Bgd5 Qg1 Ba4 Rf2 Qe3 Ra8 Qe1 b8N Qc3 Nd7 Qb2 Ra1 c1R Rb8 R1c2 Ra3 Qc1 Ra2 Re2 Rc2 Re3 Rc3 Rg3 Rcc2 Rg4 Rc3 Rc7 Nc5 Rc6 Nb7 Rc5 Ne6 Bg2 Rcc2 Nd5 Nf4 Nc7 Rc3 Na8 Rcc2 Rb5 Rcc8 Ra5 Bc2 Rc5 Nd3+ Kb5 Bb1 Bd5 N3b2 Kb4 Bd3
n2K2B1/P1Pp2p1/3n2P1/1pn1pr2/1RqN4/R1NbnN2/1k1P2Qb/4NR1B b - - 0 2 illegal: No proof kernel
1R4rR/bbK2kNp/1pb1B3/n1p2n2/P1pR1P2/2P1qNN1/1Q1PR3/2B4b b - - 0 1 illegal: No proof kernel
N4N1r/1B4p1/3r1b2/pP1brkB1/1N1P2Pp/1rNnQB2/1n1R2pP/K6R b - - 1 2 legal: proof: a4 b5 axb5 c5 d4 f5 g3 d5 e3 f4 Qf3 Qb6 Qg2 f3 Ra4 fxg2 Ra1 Qd6 dxc5 d4 Nf3 d3 Ng1 Qd4 exd4 Bh3 Ra6 Bg4 Ra1 Bc8 Kd1 Kf7 c4 Ke6 f4 h5 b4 a5 c6 h4 c5 d2 Kc2 d1R Kb2 Nd7 c7 Ba6 c8N Kf6 b6 e5 c6 e4 b5 e3 f5 e2 c7 e1R b7 Rh6 b8Q Nc5 Nc3 Nd7 Nge2 Rh5 Nb6 Ne5 c8B Rd3 Bb7 Be7 Na2 Nh6 Nb4 Nhf7 Ra2 Nd6 Qe8 Rh6 Nc3 Ndc4+ Ka1 Nb2 Be2 Re3 Bg4 Ned3 Bgf3 Rd8 Na8 Rd6 Bh5 Rh8 Bhf3 Kg5 f6 Kf5 f7 Bf6 f8N R1e2 Bd2 Re5 Bg5 R2e3 Bbd5 Bc8 Bb7 Be6 Qe7 Bd5 Qe8 Na4 Rf2 Nab2 Rd2 Nc1 Na4 Rb3 Nc3 Re2 Qe3 Ncd3 Qf2 Ree6 Qe3 Re5 g4#
2q1R3/2p1prkp/2P1P3/1B2PrpQ/1RK1N1Pr/2bN1Bq1/1BN5/4Bbq1 b - - 2 3 legal: proof: e4 b5 a4 d5 axb5 Nf6 c4 Bf5 f4 Be6 c5 Bc8 e5 Nc6 e6 Ng8 Qb3 Ne5 Qc2 Nc6 Qc4 dxc4 h4 g6 h5 Ne5 fxe5 Bh6 Nc3 Bg5 Nb1 Be3 Ne2 g5 Rh2 Nf6 Nd4 Nd5 Nf3 Nf4 Ng1 Bd4 Rh1 Ng6 hxg6 Bc3 Ke2 O-O d4 f5 b4 a5 c6 a4 d5 f4 d6 a3 b6 a2 b7 Rb8 d7 Ra8 b8B Ra3 b5 Ba6 b6 Bb4 b7 Rc3 Rh4 Rc2+ Nd2 Rf5 Bb2 Rf7 Nf3 Kh8 Ba7 Rf6 b8Q Rc1 Ne1 Rf7 Bf2 Rb1 Nc2 Kg7 Be1 Bc8 Ne4 c3 Kd3 f3 Kc4 Qe8 d8N f2 Nb7 Qd7 Bd3 f1R Nbc5 R1f5 g3 Bb7 Qe8 Qc8 Be2 Rd1 Nd3 Ba5 Rb1 a1Q Rf4 Qa3 g4 Bb4 Bf3 Rd2 Ra1 Rh2 Rd1 Kh6 g7 Rh4 g8B Kg7 Rd2 Rf8 Bf7 Ba6+ Kd5 Bb5 Bg6 R8f7 Rd1 Qa7 Ra1 Qg1 Ra8 Qg3 Rb8 Ba4 Kc4 Ba5 Ne3 c2 Ra8 c1Q+ Nc2 Qe3 Rb8 Qeg1 Ra8 R5f6 Bf5 Bc3 Rb8 Rf8 Qh5 R6f7 Ra8 Qb7 Re8 Qb8 Nef2 Qc8 B5e4 Rf5 Be2 R8f6 B4f3 Rf7 Ne4 Bb5+ Kb3 Qb6 Ndf2 Qg2 Nc5 Qa8 Rb4 Qg3 Nfe4 Qab8 Bd1 Bf1 Bde2 Q6a7 Bb5 Qc8 Nd3 Qag1 Kc4
4q3/1PB1B1pn/1p1Rp1n1/N2BpR2/2b1P1Bn/qPK2NPn/Q5Nr/3k4 b - - 1 3 illegal: No proof kernel
NbN1QN2/BBR2p2/4nb2/3N1P1K/1p1p2P1/1P1b1P1n/2rRpbRn/6k1 b - - 0 1 illegal: No possible last move, all moves rejected
1K1b3B/B3R2P/1N1npq1R/pRQn3n/3RpN1p/Pp5r/1P4NP/3b2k1 b - - 2 3 legal: proof: e4 d5 exd5 b5 d4 a5 g4 h5 c4 f5 c5 h4 d6 Ra6 d7+ Kf7 d5 Rc6 Bg2 Qe8 Be4 Rd6 cxd6 fxe4 Qb3 Kf6 Qd1 Qh5 gxh5 Kf7 Kd2 Kf6 Ke3 Ke5 d8B c5 f4+ Kf5 d7 g6 h6 c4 Kd4 c3 Kc5 c2 Kb6 b4 Kc7 b3 a3 Rh7 d6 Rf7 h7 Bb7 Qd4 Kg4 f5 Bc8 f6 Nh6 Nh3 Kf3 Rg1 Nf5 Be3 c1N Nc3 Nd3 Nf4 Nc6 Ncd5 Ncb4 Nb6 Nd5+ Kb8 e6 Ng2 g5 Rac1 g4 Rc7 g3 Qc5 N3f4 Bf2 Rg7 f7 Be7 f8N Nh5 Ng6 Ba6 N6f4 Be2 Be3 Bg5 Bf6 Bd1 d8R Rg8 d7 Nd6 Bfd4 Be7 Re8 Bd8 Rb7 Rf8 Bh8 Rf7 Nh3 Ke2 Bf2 Rf3 Re7 Rd3 Nhf4+ Kf3 Ne3 g2 Rf1 g1Q Neg2 Kg4 Bfd4 Rh3 Rf3 Qf2 Rg3+ Kf5 Rg6 Qf3 Rh6 Kg4 Nc8 Qc3 Rb5 Kf3 Bf2 Qf6 Bd4 Ne3 Nb6 Kf2 Re8 Be7 d8R Kf1 Rd7 Bd8 Ree7 Kg1 Bc3 Nf5 Rd4 Nd6 Bd2 Nd5 Be3+ Kh1 Qc4 Ne8 Na8 Nhg7 Rd2 Nd6 Ba7 Nh5 Rd4 Kg1 Nb6 Qf8 Qc2 Qf6 Qc5
BB1b3K/2P3p1/R1N3r1/2nR1qPp/1np2k2/3PPN1R/N1R1pp2/q2b3Q b - - 0 1 illegal: No possible last move, all moves rejected
1r2r1BK/RpppnP1Q/1qBRk2N/8/1P1P1pN1/2PN1p1q/1N3n2/5B1q b - - 2 3 illegal: No proof kernel forced: wxLB
3R1B2/K3p1bQ/1r1NPRR1/2N1k1P1/Bq4rP/n2rn2p/1RqN1n1P/1bb5 b - - 0 1 illegal: No proof kernel
1B2BR2/kr5q/bqr1q1P1/5Rp1/Kb2R2p/1QR1PrNP/2n2BPn/nN6 b - - 0 1 illegal: No proof kernel
1R2rbr1/2N5/qpk1p3/P1nQ4/PB2P1r1/qP2BBbB/R4n2/R3nbKN b - - 0 1 illegal: No proof kernel
1K2Q1q1/3R2p1/NRqNb3/p1RBn1b1/1RN2qPr/Pk1r1P1n/1B1P1n2/5r2 b - - 0 1 illegal: No possible last move, all moves rejected
5k1b/3nRbqq/2nKB3/pPQ2p2/6Pr/P1R3R1/2NBNP1r/2BRqr1n b - - 0 1 legal: proof: e4 d5 exd5 g5 c4 b5 h4 bxc4 hxg5 Bd7 Qe2 Bh3 Qd1 Bc8 Ke2 h5 Kf3 c5 Ke4 f5+ Ke5 a5 b4 c3 g4 c4 d4 c2 b5 h4 g6 c3 d6 h3 d5 h2 g7 Be6 Bd3 Qc7 Ne2 Bf7 Bc4 Rh4 Re1 h1N Na3 Nf6 g8R e6 Rg6 Bg7 Qd4 Bh8 Qc5 Kf8 Rh6 Qe7 d7 Ra6 Bd2 c1Q d8B c2 d6 Rb6 d7 Qb2+ Qd4 c1R Nc2 Rd1 a3 Rc6 Rg1 Rf1 Rd1 Rb6 Rg3 Nc6+ Kf4 Rb8 Qc5 Rc8 Rh7 e5+ Ke3 e4 Kf4 e3 Be6 Qc3 Bb6 Re8 d8R Nd7 Rc8 Qg7 Bc7 Rh2 Be5 Rd8 Bb2 Re8 Bbc1 Rd8 Ng1 e2 Rc7 e1Q Ne2 Nb6 Rhh3 Rd6 Rc3 Nd7 Rhg3 Qh4 Rb7 Qhh7 Rc7 Nf6 Re7 Nd7 Ba2 Rdh6 Be6 Nf6 Rb3 R6h4 Rbc3 Na7 Ke5 Nd7+ Kd5 Nc6 Kd6
2R2B1n/2nRpQ2/3r1kbP/5q1B/KN1P2p1/2Br1qN1/2RnP1P1/b3Rrb1 b - - 0 1 illegal: No proof kernel forced: bxLB
4B1Bq/p1n4R/BQ1R2rp/q2Pb1rn/P2N1Nkn/2P1B2r/3K3P/4Rb1q b - - 0 1 legal: proof: e4 d5 f4 dxe4 b4 g5 fxg5 c5 bxc5 Bg7 Bd3 Bh6 Bf1 Bf8 a4 Kd7 g4 Ke6 d4 f5 c6 b5 c7 e3 g6 f4 g5 Kf5 g7 e5 g6 e2 d5 b4 Nf3 b3 Ng5 f3 Ba3 f2+ Kd2 e1N Kc1 e4 Rg1 e3 Ne4 e2 Nbd2 Nf3 Nf6 e1Q Rg2 Na6 Nh5 Nf6 g8R Bd6 g7 Be5 Bb5 f1Q Rg6 Qh1 Nf4 h6 Rf8 Nh4 Nf3 Rg8 Rf7 Qa5 Qg1 b2+ Kd1 b1R+ Bc1 Bd7 c8B Nc7 Bca6 Rb3 Rb1 Re3 c3 Be8 Rd7 Nh5 Rgd6 Rd3+ Ke2 Qf6 Qc5 Kg4 Nd4 Rh3 Be3 Bg6 Qc6 Bd3+ Kd2 Bf1 Re1 Rae8 Qb6 Re6 Re7 Qf8 Be8 Rf6 Ng2 Rf5 Nf4 Rg5 Ree6 Qf5 Re7 Qh7 Rf7 Qh8 Rfd7 Rf8 g8B Rf6 Rf7 Rfg6 Rh7
k1n3nR/N1B3p1/nBbb2P1/2bp3R/Q1P3n1/1Kn2B1P/r2P2R1/qRN4r b - - 0 1 illegal: No proof kernel
2BN1n2/B1p1Qp2/5P1r/P1K2B2/1n2N1b1/Pb1qk2n/1bP2nrR/N1BR3n b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 g4 hxg4 bxa5 Bd6 Bb2 Bc5 Bc1 Bf8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 f4 b5 h4 d5 e3 g5 e6 b4 h5 b3 a3 g3 h6 g4 h7 g2 e7 g3 e8B b2 Nf3 g1N Nc3 b1B Qe2 g2 Nd2 Ne7 Nce4 Nbc6+ Kc5 d4 Rh2 d3 Nb3 d2 Qe1 d1N Bd3 Rg8 h8B Nh3 Bd4 g1N Ba6 Kg4 f5 Kf3 Bd7 Ndf2 f6 Bh6 Bb7 Ng6 Bf5 Nh1 Qb4 Be6 Bc8 Ba2 Rb1 Nf8 Na1 Qd7 Rb3 Rg4 Rd3 Bab3 Rdd2 Bg5 Nf2 Rh4 e4 Rh6 e5 Qd8 Be3 Qd3 Ne4 N3f2 Bd4 Bd7 e6 Ngh3 e7 Bf4 e8N Be5 Be3 Bb2 N8d6 Bde6 Nb7 Rb8 Qb6 Nb4 Qd6 Ra8 Nd8 Rb8 Bg6 Bg4 Qe6 Rb6 Bf5 Rd6 Bd4 Kf4 Qe7 Re6 Nd6 Re1 Ne4 Rg1 Bb7 Rg2 Bbc8 Qg3 Kb5 Qc3 Ba7 Qd3+ Kc5 Ke3 Rd1+
RbK2N2/3P1PpN/1k2p1r1/Rb1B4/nr1r1BP1/RBQ3R1/1r1rP3/2bq1n2 b - - 0 1 illegal: No proof kernel
1R6/1pN4k/q4B1p/2rBrbBP/Nr1nrN2/1P1Q2Nn/nKP1Pb2/3R2b1 b - - 0 1 illegal: No proof kernel
2B2b1k/1Pq1p2n/N7/1N1bR2Q/3rBp2/rPB1Pr2/R1K2Pnn/1R2rbR1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 h4 gxh4 axb5 Bf5 Ra3 Bh3 Ra1 Bc8 d4 a5 Kd2 c5 g4 f5 b3 Kf7 d6 Kg7 d7 h5 g5 c4 g6 c3+ Kd3 c2 e3 h3 b6 h2 b7 a4 d5 a3 d6 f4 Bd2 c1R Bc3+ Nf6 Nd2 a2 Ne2 h4 Rb1 a1N Nd4 h3 Ne4 Nc2 Rb2 Nh7 Qf3 Ra3 Nc5 Nc6 Qh5 Qc7 d8R Re1 Nb5+ N6d4 Rg1 h1B d7 h2 Na6 Bd5 Rb1 h1R Bg2 Rh3 Be4 Rf3 Re8 Rg8 d8R Bh3 Rd6 Rh8 Re6 Bf1+ Kd2 Rg8 Ra8 Kh8 Re5 Rc1 Nc5 Ne1 Na6 Ng2 Ra7 Re1 Ra8 Nf5 Kc2 Nh6 Ra7 Ng4 Ra8 Kg7 Ra7 Nh2 Ra8 Kf6 g7 Rh8 g8B Kg7 Bf7 Rg8 Be8 Kh8 Bd7 Rg6 Bc8 Rc6 Nb8 Rc4 Ra6 Ra1 Ra2 Rd4 Rab2 Ra5 Na6 Ra3 Ra2
1q1B4/R1pb1rn1/N1P1B3/1P1n4/KPn5/p1B2RqQ/PR1bR2r/2qNn2k b - - 0 1 illegal: No proof kernel
R1r1nrb1/N3K1R1/2B1b3/P2N4/Bpr1p3/1Pq3n1/1Pq1PR2/kQ2brBB b - - 0 1 illegal: No possible last move, all moves rejected
2kbNr2/7B/2qnn3/Rbpp3R/qBr1n3/1RPP1PR1/2bP2NK/Q3bB2 b - - 0 1 illegal: No proof kernel
q1n5/5p2/1PBPR1bN/1pr1kNbq/1BQ2q2/1P2qP2/N2B1R1N/2nr2bK b - - 0 1 illegal: No proof kernel
3RrkNn/p5R1/B1q1pBb1/P2rB3/b1q2PQB/2bb2N1/3PPKn1/5Rn1 b - - 0 1 illegal: No proof kernel
2n1N3/b5p1/1kn4b/rBN2q1N/p3bRB1/PbB1PPP1/1b1RK3/1Bb1Qr2 b - - 0 1 illegal: No proof kernel
B1R5/1pKPpBb1/bP3rpR/6P1/2n2RN1/1nPrk2q/Q1q4B/1N1qBn2 b - - 0 1 illegal: No proof kernel
1q2brR1/1pB1PBRp/6NP/nP4kq/2p1b2n/2r2r2/PN3QN1/bB1K1N2 b - - 0 1 illegal: No proof kernel
kBn2B1q/1pPn2qp/2Nb3P/1Pp1rr1N/4Nr1Q/1bR3P1/2B5/1R1KN1b1 b - - 0 1 illegal: No proof kernel
4bBR1/q1rR3B/1qQnN1RP/1b1p1p2/3k2rP/5p1q/2nP1PN1/3KB1bR b - - 0 1 illegal: Other
1B3qB1/1bRpb1pq/1p4n1/nN3P2/1NQ2P1r/1Pn1K1P1/1rR2R2/1b1B1Bk1 b - - 0 1 illegal: No proof kernel
kb6/q1bRr2N/2nB1pRp/bpP2nNR/R1P1bb1Q/7K/rP3PB1/6B1 b - - 0 1 illegal: No proof kernel
N1K2B1R/Q5BP/PN1B2pk/2bn1R1p/3q3r/b2pN2P/2bP2Br/nb3r2 b - - 0 1 illegal: No possible last move, all moves rejected
n1k1r1RR/3p2b1/rp3b2/1PpPrq2/B5PB/2R1rNNR/2Pn2Kb/2N2Q2 b - - 1 3 legal: proof: e4 g5 h4 gxh4 a4 f5 exf5 b6 a5 Nf6 a6 Bb7 axb7 Ng8 g4 a5 d4 c5 f4 e5 Kf2 h5 b4 h3 b5 e4 f6 e3+ Kf3 h2 f5 e2 d5 e1B Bg2 h4 Na3 h3 Bg5 a4 Ne2 Ra6 Nb1 a3 Nbc3 a2 Ng3 Bg7 Bf1 Bf2 Nce2 Bg1 Rb1 a1B Nc1 Qc8 Rb3 Kd8 f7+ Nf6 Rc3 Re8 f8R Bb2 Bf4 Ne4 f6 Qc7 f7 Qe5 Rh8 Qf5 f8N Bf6 Nh5 Nd2+ Kg3 Bg7 Ng6 Ba1 Bg5+ Kc7 Re3 Baf6 Ne5 Re6 Re4 Ra8 Nf4 Na6 b8R Re7 Rbg8 Ree8 Bd3 Kc8 Nfe2 Nc7 Re3 Ra6 Bc4 Na8 Rc3 Bd4 Rf1 h1R Rff3 h2 Bh4 Re1 Bb3 h1R Kg2 Bg1 Rh3 Bh2 Ng3 Re4 Ba4 Rhe1 Nf3 R1e3 Qh1 Re5 Qf1
3rnRB1/R2pk1BN/nR2p1r1/2rP3q/PP2P1R1/1b3p2/1K1bbB2/NbQ5 b - - 0 1 illegal: No proof kernel
n2n3r/1NRrNP2/6N1/1Rpp3p/rq2Q1BK/b1rRP2P/nk1P4/N4bB1 b - - 0 1 illegal: No proof kernel
B3nq2/Q2RPp1B/b3N1p1/R1n2n2/3b1rr1/BprN1PR1/nP1R3P/K5k1 b - - 0 1 illegal: No proof kernel
8/RNQ2r2/1Rpbn1b1/1pPqqnR1/r1PB1pB1/2n2PBk/N2R1P2/2n3K1 b - - 0 1 illegal: No proof kernel
rqn2q2/B2Qr3/2R3P1/N1p5/R1P1pqnb/1B1bq2k/2N1PBpP/1B1RK3 b - - 0 1 illegal: No proof kernel
b1R4K/1n5p/N1B5/p1rBnr1N/3Np1PP/P2Q1PrN/kBqRq2r/6b1 b - - 0 1 illegal: No proof kernel
K1Bb1N2/R2b3N/4rpr1/qNq2k1P/q1qp4/RBB1p3/1nPP1P2/Q2N1n2 b - - 0 1 illegal: No proof kernel
2KQR1N1/R3r2p/3N1pRP/R2n1Pp1/B6q/2P1BnP1/2bqqkq1/b1n3N1 b - - 0 1 legal: proof: d4 a5 e4 d5 a4 b5 axb5 c5 Qe2 Ra6 Qd1 Rd6 Ne2 cxd4 Ng1 d3 Ra3 d4 Ra1 Rd5 exd5 Bd7 Kd2 Bh3 Ke1 Bc8 Kd2 Kd7 h4 Kd6 b4 Ke5 f4+ Ke4 h5 e5 h6 g5 b6 f6 d6 a4 b7 a3 c3 a2 d7 Nc6 b8R Nge7 b5 Nd5 b6 Ba3 b7 Bb2 Na3 Re8 Nc4 Re7 g3 Na5 Be2 Qc7 d8R Bf5 Rh2 Qc6 Rg8 Qa4 Rbe8 Nb3+ Ke1 d2+ Kf2 d3 b8N Qb4 Rg6 Qb7 Kg2 Qb4 Nd6+ Ke3 Bf3 e4 Nc6 Qc4 Rh4 Qa4 Kh2 Kf2 Bg4 e3 Kh3 Be4 Bd7 e2 Kg4 e1N Rh1 Nf3 Rh4 Rf7 Ne7 Qb4 Ng8 Re7 Ba4 Qc4 Rb1 a1Q Rh1 Qa2 Ra1 Qb1 Ra2 Ba1 Rh2+ Ke3 Rf2 Qb2 Rf1 Qd4 Re1+ Kf2 Ra8 Qc2 Ra7 Bf5+ Kh5 Nc7 Bc6 Kg2 Nc8 Rd7 Re8 Re7 R2a5 Be4 Kg4 Qa4 Qe1 d1Q Qd2+ Kf1 Bb5 Qe1 Qd1 Qg2 Bd7 Qb4 Ba4 Kf2 Bd2 Qe2 Bc1 Bd5 Kf5 d2 Ba3 Qd4 Bd6 Nc1 Be5 Bb3 Bd6 Re3 Be5 Nd5 Ke6 Bc2 f5 Qh4 Kd7 Nb4 Bf4 Re4 Nd6 Re6 Kc8 Re7 Nc4 Bb1 Qc2 d1Q Qd2 Bc2 Qd8 Nd5 Nd6 Qdd2 Be3+
1QKNB2R/p3k1rB/rpNp3B/RPbP1rb1/b1N5/PP1n2r1/3N4/3b2q1 b - - 0 1 legal: proof: h4 g5 e4 f5 exf5 gxh4 b3 Na6 c3 Nb4 cxb4 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 c5 Kf3 e5 Ke4 h5 Kd5 b6 g4 e4 d4 h3 f4 e3 g5 c4 f6 e2 g6 e1R f7+ Ke7 f5 h4 g7 h2 Bh3 c3 Nd2 c2 Ngf3 Rf1 Ne5 Rh7 Nec4 Nh6 g8B Rg7 Bh7 Ng4 Qe1+ Ne5 Qg3 Nd3 Qb8 Qc7 Bg2 h3 f6+ Kd8 Bf3 Bc5 f8N d6 f7 Ke7 Ne6 Bd7 f8N Ba4 Bh5 Qd7 Nd8 Qg4 Bf7 Qg1 Nd7 Rf5+ Nde5 Rg3 Be8 Rg7 Nb1 Rg3 Bf4 c1B Bh6 Bg5 Nbd2 Qc1 Rf1 h1R Rf4 h2 Rh4 Re1 Rh5 Re4 a3 Qg1 Rf1 Rf7 Rf5 Rg7 Rf8 h1B Rg8 Bd7 Rh8 Bg4 Kc6 Bd1 Kc7 Rf4 Nb7 Bc6 Nd8 Ba4 Kc8 Bf3 Nb7 Bfc6 Ne3 Bf6 Bf7 Bf3 Kc7 Bd1 Qg8 Rf8 Bfg6 Rff7 Qb8 Bd7 Nd8 Rf8 Rf5 Bg5 Be8 Bb5 Kc8 Rff7 d5 Rh4 Rf4 Rf5 Rc4 Bd4 Rc5 Bc6 Ra5 Bc5 Ra6 Rc4 Ra4 Bd4 Ra6 Rc5 Ra4 Ra5 N3c4 Ra6 Ra5 Ba4 b5 Bc5 Nec6+
2Nq1n1r/Kn1QN3/b5p1/1pBpp1P1/3rP1R1/B1kB1PbB/1N4P1/2r2b1R b - - 0 1 illegal: No proof kernel
2B1bq1B/1n5P/nrk1R1QN/p4r1B/P1K2p2/Nnp1p1b1/NP1BP3/3R3b b - - 0 1 illegal: No possible last move, all moves rejected
1RRb1Q1k/2p1Pn2/3nN2p/2P2BpP/1BrR3B/bp5b/1q1r2P1/N3KR1n b - - 2 3 illegal: No possible last move, all moves rejected
1Q2n3/prp1P2b/1B2R1N1/br2qRRp/1N1p3k/BbP5/R1rP2P1/3B1Kn1 b - - 0 1 illegal: No proof kernel
3r1rBR/2p2N1p/1NPPkp1Q/2n2P2/3R2K1/PnbpB3/r5b1/RqN2qN1 b - - 0 1 illegal: No possible last move, all moves rejected
5N2/2R1pK2/1kNrBnRq/2p5/qr1nPPp1/BpP3P1/1Q3R2/RN1b1br1 b - - 0 3 illegal: No proof kernel
3NN1qR/4rbn1/1B1pp1B1/N1rP1npR/2b4P/2p5/1BqNPQPK/k1r5 b - - 1 3 illegal: No proof kernel forced: bxLB
2R3qq/1N6/1r2P3/3Q1pbB/pnppn1n1/R2bBrPN/R1kPRPN1/5K2 b - - 0 1 illegal: No proof kernel
4q3/Rp2B1Pp/pPnr3Q/Bq2b3/p2b2NB/P2bR1R1/1rNK1n1P/1kR5 b - - 0 3 illegal: Other
n2r4/2bbqPPK/3pN1R1/r1RR1npp/1b1Nb2P/R1Q2p2/B2P4/2B3kN b - - 0 1 illegal: No proof kernel
RB2N1n1/1rp4K/pk4r1/1p2R2N/1PrnBQ1q/1P2P3/P1NrB1bp/2b2B2 b - - 0 1 illegal: No proof kernel
qN1nr1QK/BP3Bpb/4p3/3pnnrN/2RN3k/b1n4p/B3P1PP/1R2B3 b - - 0 3 illegal: No proof kernel forced: bxLB
4RRq1/pnq1pnQ1/B1B1r1p1/P2RP1Rq/1P1B1bpk/q6r/1N4P1/3K3N b - - 0 1 illegal: No proof kernel
3Nb3/2p1n2Q/R3p2B/b1P2P2/qN1kP1pN/n2p2Pr/1pn2rR1/3BB1KB b - - 0 3 illegal: No proof kernel
1Q5B/nqppk1K1/1q4RN/1Rn3Np/1bPP3R/pp1R2B1/PPrb4/5b1N b - - 3 4 legal: proof: f4 f5 e4 g6 exf5 Na6 f6 Nb8 Bd3 Kf7 Be4 Ke6 f7 Kd6 f5 Qe8 f6 Qd8 Bf5 Kc6 h4 gxf5 g4 a5 g5 Kb6 g6 Kc6 Kf1 Ra6 Ke1 Rb6 Ne2 Rb3 Ng1 b5 Qg4 Rg3 Qd1 Rg5 hxg5 Kd5 Ne2 Kc5 Ng1 Kc6 Ke2 Kd6 Kd3 e5 c4 h5 g7 e4+ Kd4 e3 g6 b4 Nf3 f4 Ng5 a4 Rh4 e2 Qb3 e1B Nc3 f3 Ne2 a3 Ng3 f2 Nh1 Be7 f8R f1Q f7 Nf6 g8N Bb7 g7 Bg2 Nh6 Qc8 g8R Qb7 Rg6 Rg8 Rd8 Qff3 f8B Bf1 Bg7 Qfc6 Bh8 Qcb5 d3 Bd2 Re8 Bf8 Re5 Q5b6+ Rc5 Ke7 Ke5 Rg7 d4 Ne4 Rb5 Nc6+ Kf5 Nc5 Rb1 Be1 Bf4 Bd2 Bg3 Na7 Rc1 Rg8 Rc3 Rg7 Rd3 Rf7+ Ke5 Rf2 Qa4 b3 Qa5 Bc3 Qb4 Rc2 Kf5 Bd2 Ke5 Kd8 Kf5 Bd6 Kf6 Ke8 Kg7 Ke7 Qa4 Na6 Qa5 B6b4 Qa4 Nc5 Qa6 Nc6 Qa8 Na7 Qb8
1n1K4/6bp/1NNP2BR/2p1nQ1P/pRbp2N1/B1PPb1Bp/r1k2b2/2N2r2 b - - 0 1 illegal: No proof kernel
kR2R3/1N1KbB1P/N2Rn1r1/1P1Q2P1/4n2P/1pB1Q3/n1bp1p2/1R2q3 b - - 0 1 legal: proof: b4 b5 g4 e5 d4 a5 dxe5 h5 gxh5 g5 f4 g4 a4 c5 axb5 cxb4 Ra4 Ra6 Ra3 Rg6 Ra1 Rg5 fxg5 Bg7 Qd2 Bh6 Qd1 Bf8 Kf2 f5 Kg3 d5 Kf4 Kd7 c4 Kc7 h4 Kb7 e4 g3 e6 d4 Ke5 b3 h6 a4 h7 g2 c5 f4 e7 f3 e8R f2 c6+ Ka7 c7 d3 Nd2 a3 Ne2 g1N Nc4 a2 Nc3 Bf5 c8R Bc5 Bd2 Qb6 Nd5 Be6 Nc7 Be7 Rb1 a1Q+ Bc3 Ne2 Na5 Na6 Nb7 Nc5 Na6 Nc1 Bh3 Bd5 Be6 Na2 Bf7 Nf6 Qd2 Bc4 Rhd1 Ne6 Kf5 Bd5 e5 Rg8 Qe3 Bg2 Qd4 Ne4 Qd5 Rg6 Rd2 Nd8 e6 Bf3 Ke5 Bd1 Kf5 Bc2 Rdd1 Bf6 e7 Qd6 Rd2 Qb8 Rdd1 Ka8 Rd2 Nc6 Ke6 Nd8+ Kd7 Ne6 Rh8 Qb2 e8Q Qc1 Qe7 Qe1 Rhe8 Nb4 Qec5 Be7 Qe3 Bd1 Ra2 d2 Ra4 Na2 Rac4 Be2 R4c6 Bd1 Rd6 Bc2 Rxb8#
1Q5N/1Q4N1/P6b/QrP2bk1/P2qb1qn/P1n1RBRb/3r3b/K2B1Q2 b - - 0 1 illegal: No proof kernel
3nr1q1/3P2BB/B1N2P1q/3QQrB1/3Kb3/3bR1n1/2q1rPkP/2q2RN1 b - - 0 1 legal: proof: e4 f5 exf5 b5 g4 h5 a4 hxg4 axb5 Rh7 d4 Rh8 Be2 d5 Bf1 c5 Nh3 e6 Ng1 Bd6 c3 Be5 dxc5 d4 Nd2 d3 Nb1 Bd4 cxd4 Qc7 Ra6 Qd6 Ra1 Qd8 Kd2 Kf7 Ke3 Kf6 b4 Kg5 c6 Kh4 f6 g5 c7 a5 d5 g3 d6 d2 d7 a4 b6 g2 b7 g4 b5 a3 b6 g3 Ne2 Kh3 Nbc3 a2 Qc2 d1B Na4 e5 Qb1 e4 Nac3 Ra5 Ba3 Ne7 Bb4 Qg8 Na4 Rf5 Qc1 Bc2 Nd4 Bd3 Nc3 Nbc6 b8B Nd8 Qd2 Bb7 Re1 a1Q c8B Qd1 Nc6 Qc2 Kd4 e3 Bf4 e2 Bg5 Qf8 Rg1 Qh6 Rh1 Ba8 b7 Re8 b8Q Bb7 Qe5 Ba8 Ra1 e1R Ba6 Re2 Re1 Bb7 Na7 Bbe4 Nc6 Ng6 Bc5 Nf4 Bf8 Nh5 Qd1 Rd2 Be2 g1Q Bg7 g2 Bf1 Ng3 Re3 Re2 Qd2 Qb3 Qa2 Qc2 Qad5 Rd2 Be2 Qgc1 Rf1 g1Q Bg4+ Kg2 Ne2 Qh1 Ng1 Re2 Nf3 Qg1 Bh5 Qa3 Bg6 Qf8 Bh7 Qg8 Rb1 Qgc1 Ng1 Qa3 Re1 Qac1 Rf1
R3Q3/2r1b1NP/3q1rRN/bPQ2r2/2KB1Pn1/1R3krP/B1R2n2/1n3n2 b - - 0 1 legal: proof: c4 f5 e4 d5 exf5 h5 cxd5 b5 h4 b4 Qg4 Ba6 a3 Bd3 axb4 Be4 b5 Bf3 Qe4 Bg4 Qd4 Bh3 Qg4 hxg4 gxh3 Rh6 Rh2 Rh7 Rh1 Rh8 Ke2 Kd7 Kd3 Kd6 b4 Ke5 d6 Kf4 f3 a5 f6 c5 b6 e5 f7 g5 b5 g3 d7 g4 h5 c4+ Kc3 e4 d4+ e3 h6 g2 d5 a4 b7 g3 h7 a3 d6 a2 Kd4 c3 Kd5 c2 Bd3 Nf6+ Kc4 Nc6 b8Q Nb4 Na3 Ra6 Bb2 c1R+ Nc2 e2 Rb1 e1B Bd4 a1N Rh2 Be7 f8Q Nb3 Bf1 Qb6 d8R Nd3 d7+ Qd6 Qa7 Ba5 Qe8 Nf2 Qc5 Rc6 Ra8 N6g4 d8R Rf8 Be2 Rf1 Ne3 Rf6 Nf5 Rc7 Nh6 Rf5 Ra6 Rf6 Rda8 Rf5 Ra1 Rf6 Ra4 Rf5 Rb4 Nd2+ Kc3 Rf6 Bc4 Rf5 Ba2 Nb1+ Kc4 Rf6 Bc3 Rf5 Rb3 Rf6 Qcc6 Ke3 Ne2 g1N Nd4 g2 Rb6 Ne2 Ne6 g1R Ng7 Ng3 Bd4+ Kf4 Rh1 Nfe4 Qd8 Re6 Qg8 Qd8 Ngf5 Rf2 Rh2 Nf1 Qc5 Rg3 Qf7 Rg6 Re6 Qd6 Qe8 Rg5 Ng7 Rg6 Re5 Rf6 Rg5 Rd2 Bc3 Rd5 Rc2 Rdf5 Bd4 Nef2 Rg6 Rg1 Be3+ Kg3 f4 Kf3 Rbb2 Rg2 Rb3 Rg3 Bd4+
1R3N1Q/Q1bPB2N/q3PK2/1rbR1b2/P2N4/r2q1P2/Br1n1k1N/3q1q2 b - - 0 1 legal: proof: c4 a5 e4 h5 g4 d5 cxd5 f5 gxh5 e5 exf5 e4 d4 Nd7 b4 Ne5 dxe5 axb4 Kd2 Kf7 Ke3 b5 Kf4 c5 h4 g5+ Kg4 c4 d6 e3 a3 e2 f3 e1Q h6 c3 h7 c2 h5 b3 h6 b2 Qd2 b4 Ba6 b3 Bf1 Qa5 Qd4 Qd1 Nd2 b1R Rh5 b2 Ne2 Qa6 Qa7+ Bd7 Nd4 Nf6+ Kh3 g4+ Kh4 g3 Kg5 g2 Bc4+ Nd5 f6 g1B Nf1 Bh2 Bd2 c1Q Ba2 Qcc2 Ba5 Qcd3 Bb4 Rb8 Bc5 Rb5 Bb4 Bg3 Nh2 Be7 Bc5 Bf5 d7 Ra8 h8Q Bd6 Bb4 Bc5 h7 Q3f1 Ne2 Ke6 f7 Bb6 Be7 Bc5 Nc1 Qfd3 Nb3 Ne3 f8N+ Kd5 e6 Nf1 Kf6 Bc7 Rg5 Kc4 Nd4+ Kc3 Rg8 Kd2 Rg5 Ke1 a4 Rc8 Rg8 Nd2 Rg5 Rcb8 Rh5 Rc1 Rb1 Rc3 Rg5 Ra3 Rh5 Bh3 Rd5 R8b7 Qg7 Rb8 h8N Kf2 Nhg6 Bf5 Nh7 Q1f1 Qh8 R8b6 Rd1 b1Q Ngf8 Rb2 Rc1 R6b5 Rc3 Qbd1 Rb3 Ra5 Rb7 Rab5 Rb8
1QbN1b2/1B3bPR/4q1n1/7b/P1knBRP1/2N1nQ1P/nr2n3/1Q4QK b - - 0 1 legal: proof: c4 g5 d4 a5 f4 d5 fxg5 Kd7 cxd5 a4 e4 a3 d6 Kc6 d7 Kd6 bxa3 Nh6 a4 Ng8 a5 Kc6 d5+ Kd6 g3 Ke5 Be3 h5 Bf2 b5 Nh3 h4 Ng1 Ra6 d6 Rc6 Nc3 Rc5 Nb1 Rd5 exd5 Kf5 g4+ Kg6 Bg3 hxg3 a4 c5 a6 f5 h3 Kf7 a7 e5 a8B e4 Nd2 b4 Ra2 c4 Qb3 c3 Rc2 g2 Kf2 e3+ Kf3 f4 Qb1 e2 Rh2 e1N+ Kf2 f3 Bd3 b3 Nc4 b2 Ne2 g1N Be4 Qe8 d8Q Ne7 d7 Ng2 d6 Ke6 g6 Ne3 Ne5 Nbc6 Bb7 Nd4 Qb6 Rh5 g7 Ng6 Nc6 Rb5 d8Q Rb4 Kg3 f2 d7 f1B Rf2 Rb3 Rd2 c2 Kh2 c1N Nc3 Na2 Kh1 Bc4 Rf4 Nge2 Qa7 Kd6 Qf6+ Qe6 Nd8 Rb6 Qb8+ Kc5 Qg1 b1B Rb2 Bd5 Rb5+ Kc4 Ra5 Bc6 Rh5 Rb2 Rh7 Bd3 Qh4 Bb1 Qhf2 Bd5 Qf3 Bc2 Nf7 Bb3 d8Q Bc6 Qh4 Be8 Nd8 Bf7 Qhe1 Bc2 Bf5 Be4 Qa1 Bc6 Qab1 Bce8 Bd3+ Kb4 Qbe1 Nh8 Rf6 Bh5 Qb1 Ng6 Rf4 Bf7 Bf5 Kc4 Bfe4
3rrRQ1/N1bb3b/4NR2/1BQ1b3/4b2P/4Pq1k/1PrPqNN1/K1B1r3 b - - 0 1 illegal: No proof kernel
2q3nQ/B5r1/1QNPP2b/4brRk/N3r2q/BP1K2P1/p4Nq1/3RN1n1 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 fxe5 g6 a4 Bb7 axb5 Bc8 h3 Ne7 b6 Bf5 e3 Ng8 Bd3 Bg4 Bf5 gxf5 hxg4 Bc5 Nh3 Be7 Ng1 Bf8 Ke2 a5 d4 c5 g3 h5 b3 f4 e4 f5 g5 Kf7 d6 Kg6 b7 f3+ Kd2 f4 d5 c4 e6 a4 e7 c3+ Kc2 h4 e8N a3 e5 h3 d7 a2 e6 f2 d6 f1R Qd2 f3 Nf6 f2 Qd4 h2 Qb6 Rh4 Kd3 c2 Nc3 Qc8 d8N Bg7 Ng4 Nd7 b8B Ra7 Nf3 Kh5 g6 Be5 Ba3 c1B g7 Bh6 Rd1 Rc7 Rg1 h1Q Ne1 Qg2 Nc6 Qh2 Ne3 Re4 Na4 Qh4 Ba7 Bef4 Rc1 Ngf6 g8Q Ne5+ Kc3 Rb7 Ng4 Rg7 Nc2 Nf3 Qh8 Ng8 Kd3 Rd7 Rg2 Ng1 Ne1 Rg7 Rc5+ Re5 Nc2 Re1 Rb5 Re4 Ne1 f1Q+ Re2 Rc5 Nf2 Qg2 Rd2 Rce5 Rd1 Reg5 Rf5 Be5 Rf6 Rf5 Rg6 Bf6 Rg4 Be5 Rg5+
q1RnB2R/q1NBN1N1/P1b1q1P1/1PbQn3/1r5N/P3Q3/r5pK/3k1b2 b - - 0 1 legal: proof: d4 b5 f4 e5 dxe5 a5 b4 Bb7 bxa5 Nf6 c4 Bc8 cxb5 Ng8 f5 h6 f6 Bd6 fxg7 Bf8 g4 Bb7 g5 Ba6 g6 Bc8 Bg5 hxg5 Kf2 Ke7 Kg3 Ke6 e4 d5 h4 c5 h5 f5 h6 d4 h7 d3 Nd2 f4+ Kh2 g4 Rb1 c4 Ra1 c3 Qb1 f3 Qb2 f2 Re1 c2 Ne2 c1Q Qd4 Qa1 Bh3 f1B Ng3 Ne7 g8N Nd7 Nf3 d2 Qe3 d1Q Nh5 Bb7 Nh4 Qd5 Rc1 Nc6 Ne7 Ra6 Rc5 Qa8 Rc2 Nd8 Rc8 Bc6 a3 Qad4 Qg3 Ra7 Qe3 Rc7 a6 Qda7 Ng8 Bc5 Ne7 Rf8 h8Q Rf4 Qh6 Qc4 Qd2 Qb3 Qg2 Rf2 Qe3 Ra2 Qgd2 Nb6 Qg2 Nc4 Qgd2 Rd7 Qg2 Rd4 Ng7+ Kd7 e6+ Kd6 Qgd2 Ne5 Qg2 Rb4 Qgd2+ Bd4 Qg2 Kc5 Qgd2 Nd3 e5 Kc4 Qg2 Bb2 Qd5+ Kc3 Ng8 Kc2 e7 Bc3 e8B Bd4 e6 Ne5 e7 g3+ Kg1 g2 Kh2 Bc5 Bhd7 Be2 Bf7 Qa4 e8N Qb3 Nc7 Bf1 Ne7 Qc4 Bfe8 Qb3 Qdf3 Qe6 Qd5 Bd3 Rf1 Be2 Rf8 Bf1 Qc4+ Kd1 Rh8 Rbb2 Qce4 Rb4 Qd5+
1K1n4/2r2Bpr/1nQb1k2/qP3qN1/b1BPQ3/P1P1Q2N/QnR5/1R4b1 b - - 0 1 illegal: No proof kernel
1RQr4/2n2P1q/1rP1b1n1/RP1Q3k/1PB2q2/b1NBNpNN/b7/2n4K b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 e5 f4 f6 f5 Rh6 Bf4 exf4 e5 Rh7 exf6 Rh8 Kf2 Kf7 Kg2 a5 h4 d5 c4 g5 b4 d4 c6 a4 c5 g4 h6 g3 h7 d3 h5 a3 c7 a2 h6 d2 c6 Na6 Bd3 Bd6 Nh3 Ne7 Nc3 Be6 c8B f3+ Kg1 Rg8 h8Q g2 h7 Qc7 Bd7 Rgb8 Qc8 Ng6 Rh2 Bf8 h8N+ Kg8 f7+ Kh7 f6 Kh6 Be8 Bg7 f8N Rb6 Nh7 Qf4 Nf7+ Kh5 Nd6 Nc7 Nf5 Rab8 Qb3 d1B Qd5 Bb3 Bf7 Bc4 Nf8 Bh6 Nd7 Bg5 Ne5 Bh6 Rd1 a1N Ng4 Ba2 Nge3 Nb3 Ra1 Nc1 Bg8 Bb3 Ra5 Ba2 f7 Bg7 Bc4 Bh8 Bh7 Be5 Ne4 Bb2 Nc3 Ba3 Nd4+ Ne5 Bhd3 Ra8 Ndf5 Ng6 Kf2 Qe4 Kg3 g1Q+ Rg2 Qf1 Kh2 Qf4+ Rg3 Qe2+ Kh1 Qc2 Rg2 Nh8 Rg8 Ng6 Qa6 Rd8 Re8 Rd7 Rb8 Rd8 Qc8 Qb2 Nb1 Qg7 Nc3 Qh7 Ng3+
N1BQ4/3P1nK1/bNr1r3/1Q3k2/1RpPqP1n/bb3r1R/1PR4R/2r4B b - - 0 1 legal: proof: c4 b5 e4 d5 a4 f5 axb5 e5 exf5 g5 h4 e4 hxg5 e3 Ke2 Qe7 cxd5 Qf6 d3 Qd8 Bd2 exd2 Ke3 Ke7 Kd4 h5 Ke5 a5 g4 c5 f4 h4 g6 h3 b6 h2 d4 a4 b7 c4 f6+ Kd7 d6 a3 g5 a2 g7 Rh5 f7 Ra7 Nc3 Ra4 Nge2 Ra7 Nb5 Na6 b8R Rh4 g6 Qa5 Rc1 a1R Nc3 Nc5 Bh3+ Ne6 Rc2 Nh6 Kf6 Rc1 g8R Ba6 g7 Nf5 Na4 Nd8 Nc7 Qd5 Na8 Rc7 Rb4 Rc6 Qh5 d1B Rh8 Qe4 g8B Rg4 Bg2 Nh4 Qb5 Rg3 Bf3 Rh3 Rh7 Be7+ Kg7 Ke6 f8Q+ Nf7 d7 Bc5 Qd8 Kf5 N4b6 Re6 Bg2 Rf3 Rh8 Ng6 Rh3 Nh4 Re2 Bb3 Rc2 Ng5 Bf7 Rc6 Bd5 Nf7 Rg3 Re6 Bb7 Rc6 Bc8 Re6 Rf1 h1R Rff2 Rc6 Rh3 Rhe1 Bh1 Re2 Rfh2 Ree1 Ra4 Re2 Nd5 Ba3 Ndb6+ Qd5 Rb4 Ree6 Qa4 Qe4 Qb5+
1Kn5/1Nn1QQ1R/3p2N1/nP1P1b2/P1kn2B1/rq1qB1N1/2nRP1r1/N7 b - - 0 1 legal: proof: c4 a5 g4 f5 gxf5 g5 f4 e5 fxe5 g4 h4 Bh6 b4 b5 cxb5 Bg5 hxg5 axb4 Kf2 Kf7 Ke3 h5 Kf4 c5 d4 c4 f6 Ke6 g6 Kd5 e6 g3 e7 g2 e8N h4 f7 b3 f8Q b2 g7 c3 Nh3 g1N Be3 c2 Na3 b1N Nf2 c1N Ne4 h3 N8d6 h2 Ng3 Na6 Nc2 Nb3 Nb7 Nf3 Qe7 Kc4 Bh3 Na5 Qf1 Nc7 Bg4 Na3 Rd1 d6 Na1 Bf5 Rd2 Nc2 a4 Rh3 Qf2 Qe8 d5 Nfd4 Qf1 Qg6 Qf3 Nf6 g8N Nd7 Qf1 Nb6 Qf3 Qh7 Kg5 Nc8 Kf6 Be6 Qf1 Qd3 Qf4 Bf5 Kf7 Ne6 Ke8 Nc7+ Kd8 Qb3 Qeg5 Rb8 Ne7 Qd3 Ng6 Ra8 Rf1 h1Q Qe7 Qf3 Rh1 Qb3 Bg1 Qfd3 Be3 Rh2 Qf3 Rg2 Rh7 Ra6 Qf7 Rc6 Qe4 Kb4 Qee6 Rc3 Qee7 Kc4 Nf4 Qb1 Ng6 Ra3 Qg5 Qbb3 Qge7 Nce6+ Kd7 Nc5+ Kc7 Nce6+ Kb8 Nc7 Qe4 Be6 Qe5 Bf5 Qee7
B3bq1n/3r1P2/1n4nR/n1NP3k/4rQ1N/1QR3p1/1PR1PR1n/1K3B1q b - - 0 1 illegal: No possible last move, all moves rejected
1NQ1B1b1/1r4qr/KRNQPR2/1R3q2/B1k1nPrq/p5P1/R1P5/r3b3 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 c5 dxc5 f5 g4 Qb6 gxf5 Qh6 Be3 Qh4 Bd4 Qd8 Na3 exd4 Qd3 g5 Rb1 g4 Ra1 g3 Qd2 g2 Qf4 Na6 Qc1 Nb4 Qb1 Na2 Qd1 Nc3 Nb1 Ne4 Ra4 Qc7 Ra1 Ng3 hxg3 Qd8 Kd2 Kf7 Kd3 d5 e4 a5 f4 h5 b4 h4 b6 a4 b7 a3 b8R h3 c6 h2 b5 Qe8 f6 Ke6 f7 Ra4 b6 Ra7 e5 Bb4 f8Q Qh5 b7 Rh7 c7 Nf6 Ra2 Ne4 Nc3 Qf5 Nf3 g1Q Na4 Be1 Nb6 Qg2 Qd2 Qgh3 Nd7 Qh4 Bh3 Rg7 Bg4 Rg8 Bh5 Rg5 Be8 Rg4 Rf1 h1Q Rg1 Q1h3 Rh1 Qhf6 Qc5 Qg7 Qc4 Qh4 Qcc3 Bf2 Rb1 Be1 Rb5 Qhh8 Ra8 Qh4 b8R Ba6 c8B Rb7 Ke2 d3+ Ke3 Qgg6 Kd4 Qg7 Qd1 d2 Ra7 Nd6 Kc5 d4 Raa8 d3 Nd4+ Ke7 Rb6 Bc4 Nc6+ Ke6 Raa6 Ne4+ Kb4 Kd5 Ka5 Bb3 Qc5+ Ke6 Qf8 Kd5 Qd6+ Kc4 Rb5 Ra7 R8b6 Rb7 Qe2 d1R+ Qd2 Qhe7 Ndb8 Ra1 Bcd7 Qh4 Qc7 Bf2 Qd1 d2 Qc8 Be1 Ra8 Kc3 Ka6 Bg8 e6 Kc4 Qc1 d1R Qd2 Qfg6 Qd6 Rd5 Ra7 Rh5 Ra8 Rh7 Ra7 Rc7 Rab7 Qgh5 Rf5 Qhf7 Rf6 Qfg6 Rb5 Qf5 R7b6 Rb7 Ne7+ Rc7 Re5 Rb1 Ba4 Ra1 Nec6 Rb7 Reb5
2BQq1nQ/K1Nq1pbR/3rk1N1/1r1q2BN/1P3r1q/1R4P1/3bP2P/1N6 b - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 hxg4 b4 b5 a4 Bb7 axb5 Bd5 Bh6 Be6 Bc1 Bb3 cxb3 g5 Ra5 g3 Nc3 g2 Nb1 g4 Nc3 g3 Ra3 Nc6 Nb1 Nce7 Ra6 Nf5 Nf3 g1B Ra3 g2 Ra1 Ng3 fxg3 Rb8 Qd3 Rc8 Qd1 Ra8 Kd2 Ke7 Kc3 d5 e6 c5 b6 a5 b7 c4 b8N a4 b5 d4+ Kb4 c3 Kc5 a3 b4 d3+ Be3 d2 b6 c2 b7 a2 Ne5 Rh4 Na6 Rf4 b8Q Qd5+ Kb6 c1R Nc7 Ra5 Ng6+ Kd6 e7 Rb5+ Ka6 Rc6+ Ka7 Bg7 e8N+ Kd7 Qa8 Rd6 Qb8 Bf2 Qa8 g1Q Bh3+ Qe6 Qb8 Qg2 Re1 Qd5 Nf6+ Kc6 Nh5 Kd7 Rf1 Be1 Rf3 Qg4 Ne6 Qh4 Nc7+ Rg4 Rf5 Re4 Bg5 Rf4 Qc1 d1Q Qc3 Q1d3 Qf6 Bd2 Qfd8+ Kc6 Rf6 Q3e4 Bc8 Qe8 Na3 Qd7 Rb1 a1Q Rb3 Qae5 Nb1 Qee8 Nh8 Re6 Rh6 Kd6 Rh7 Ke5 Ng6+ Kf5 Qb6 Rd6 Qd4 Bh6 Qh8 Bg7 Bb7 Q7c6 Na6 Ke6 Bc8+ Qcd7+ Nc7+
1kr1qR2/1rBPrBQ1/1B2P1q1/1P6/1b1P1K2/1NB1N3/6qp/r2n1RrQ b - - 0 1 legal: proof: f4 d5 a4 e5 c4 exf4 cxd5 b5 axb5 f3 g3 Bd7 g4 Bc8 Bh3 g5 Bg2 f5 Bf1 f4 h3 Bf5 gxf5 Nd7 h4 g4 Ra5 Ne5 Ra2 Nf7 Ra1 Ng5 hxg5 Be7 Rh2 Bd6 Rh1 Bf8 Kf2 Kd7 b4 Kc8 e4 c5 d4 a5 g6 h5 e5 c4 b6 c3 g7 c2 b5 a4 b7+ Kb8 d6 h4 f6 h3 f7 a3 d7 a2 Bc4 h2 Nh3 Nf6 g8Q Bb4 f8B Qe8 Rf1 Ra7 Bb2 c1R Nd2 Rh7 Be7 Nd5 Bc3 Ne3 Bd8 Re7 Qg7 Rc2 Rb1 a1R Bf7 Rc1 e6 g3+ Ke1 g2 Nb3 g1R Nf2 Rc2 Ng4 Rc1 Kd2 f2 Kd3 f3 Ke4 Rc2 Qe1 Nd1 Kf4 Rc1 Qe4 Rc2 Ne3 Rc1 Re1 f1Q Re2 f2 Qh1 Qe1 Bb6 f1Q+ Rf2 Qg2 Rf1 Qc6 Rb2 Qg2 Rbf2 Qd2 Rf3 Qd3 Bd8 R7a6 Bb6 Qdg6 Bd8 Ka7 b8B+ Ka8 Be5 Ra7 Bec7 Rb7 Bb6 Kb8 Rh3 Rc7 Rh8 Rb7 Rf8 Rc2 Be1 Rc4 Bc3 Rc8 Bdc7+
3K4/n1r1P3/2k5/3N1p2/BB1RNnRP/2Pr2N1/P2qQQbp/r1b2Nb1 b - - 0 1 legal: proof: f4 c5 d4 h5 dxc5 a5 b4 axb4 g3 e5 fxe5 Ra7 Nd2 Ra3 Nb1 Ra8 Kd2 g5 Nc3 b5 Ke1 g4 Bd2 h4 Nb1 Ra3 Bg5 h3 Bc1 Qh4 gxh4 g3 Qd6 g2 Qd1 Rg3 hxg3 Ba6 Qd4 Bb7 Qd1 Bc8 Kd2 d5 Ke3 Kd7 Kd4 f5 e4 h2 e6+ Kc6 Ke5 b3 c3 b2 g4 d4 g5 b4 g6 d3 g7 b3 e7 d2 e8N Be6 Bb5+ Kb7 c6+ Kb6 c7 Nh6 Kf6 Ba3 c8N+ Kb7 g8Q Bf7 e5 Be6 Nb6 Rh7 Nd5 Nf7 Ne2 g1B Ba4 Ng5 Ng3 Rc7 Qe2 d1R Nd2 b1Q Ndf1 b2 Qh7 Bd7 e6 Rd3 Qg6 Bb5 Nd6+ Kc6 Nde4 Nh3 e7 Qc2 Ke6 b1R Qf6 Bb4 Qd4 Ba3 Qdf2 Qd2 Kf7 Nf4 Ke8 Bb2 Kd8 Ba3 Bb2 Re1 Bc1 Rd1 Rb1 Re1 Rb4 Rd1 Bb2 Ra1 Bc2 Ba6 Rd4 Bb7 Bc1 Nd7 Bb3 Nb6 Bb2 Nc8 Bd1 Bd6 Ba3 Na7 Bb4 Bc5 Qff3 Be3 Rg1 Bb6 Rg2 Bg1 Qff2 Bc5 Ba5 Ba3 Bb4 Bc1 Nh5 Bc8 Rg4 Be6 Nhg3 Bf7 Bc2 Bh5 Rg7 Bf3 Rg4 Bg2 Ba4+
1N2Q1BN/7R/rnbbQkP1/r2q4/2p5/PP1pBN2/N2P2q1/2K1Rrn1 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 e5 f4 a4 fxe5 b5 Bd3 b4 Bf1 b3 cxb3 a3 Rh5 axb2 Rh3 Ra4 Rh1 Ra8 g4 Ke7 e6 c5 g6 h5 g5 d5 g7 d4 a3 h4 f6+ Ke8 g6 h3 e7 h2 Qe2 Rh5 Kd1 Ra6 Nc3 b1R Qe6 Qd5 Na2 Nd7 Bc4 d3 Nf3 Nh6 g8N Ng4 Nh6 Bb7 Nf7 Nb6 Nh8 Ne5 Re1 Bc6 Rh1 Rb2 Re1 Rc2 Bb2 h1Q Bd4 Qg2 Be3 Rb2 Rc1 Rb1 Rh1 Rg5 Rh7 Ra1 Rb1 Rf5 Kc1 Rh5 Qf7+ Kd7 Qe8+ Ke6 f7 Kf6 Qd7 Rf5 e8Q Bd6 f8N Rg5 Ng1 Nf3 Qg4 Qe5 Bg8 c4 Qgc8 Qd5 Nd7+ Kf5 Nb8+ Kf6 Ne2 Ng1 Nd4 Qde4 Nf3 Rga5 Kb2 Qd5 Re1 Bd7 Re2 Rf1 Re1 Bb5 Kc1 Bc6 Qce6+
Q4BR1/RQpk1n2/3P4/PP1qN1r1/1K1B4/1Q2Pq1N/2bQb2p/4rn1r b - - 0 1 legal: proof: h4 b5 b4 g5 hxg5 d5 c3 e5 e4 Bc5 exd5 e4 Bc4 e3 Bb3 a5 c4 e2 cxb5 Be3 fxe3 a4 Kf2 axb3 Ke1 h5 a4 f5 d4 b2 Kd2 e1R Kc3 f4 g4 f3 d6 f2 g6 f1B g7 h4 d7+ Ke7 d5 h3 d6+ Ke6 b6 h2 g5 Bca6 g6 Bh3 b7 Bb5 Qd2 Nc6 b8Q Qg5 d8B Re2 Qb7 Nf6 g8Q+ Kd7 g7 Nh5 Na3 b1Q Be7 Re1 Nc4 Bf5 Bf8 Nd8 Bb2 Qe4 Nh3 Nf7 Rg1 Ng3 Kb3 Qgf4 Bd4 Rh5 Ra3 Rg5 Ne5+ Ke6 Qh8 Qff3 g8Q Be2 b5 Nf1 Kb4 Qd5 Qhh7 Rg3 Nd7 Ra1 Bh6 Bb1 Qhd3 Bc2 Qh8 Rag8 Qb3 R8g7 Qha8 Re1 Ne5 Rg8 Rg2 R3g4 Bf8 R8g7 Rf2 Rg1 Rg2 Rh1 Ra1 Rh7 Rg8 Rh5 Rc1 Rg5 a5 Bcd3 Rc6 Be4 Ra6 Bc2 Nc4 Kd7 Ra7 Qdf5 Qdc3 Qe6 Qd2 Qed5 Ne5+
n1Q2b2/3K2BP/1QP1P2R/4PBk1/Bq1p2r1/rN6/n2rp3/1BR1nNq1 b - - 0 1 illegal: No proof kernel
2K3R1/1P6/r1P1Q2R/1bQPp1pR/q6B/NRqn3k/nB1n1P2/4Nrn1 b - - 0 1 legal: proof: g4 c5 a4 h5 gxh5 b5 axb5 f5 d3 e6 e3 c4 Bg2 Bc5 Be4 fxe4 dxc4 Bd4 c5 d5 Nf3 Be5 Ng1 d4 Nd2 d3 Nb1 Bd4 exd4 Qg5 Ra4 Qf6 Ra1 Qd8 Kd2 Kf7 Kc3 Kf6 Kc4 Kf5 b4 a5 h4 g5 d5 a4 b6 d2 Kb5 a3 c4 a2 b7 e3 c6 e2 h6 Kg4 c5 Qe8 Kb6 Qf8 Kc7 Ra4 b5 Qf5 b6 Qg6 h5 Qf5 h7 Ra6 h6 Ne7 Nf3 e1N Qc2 d1Q Rh5 Qfd3 Na3 Nd7 b8B Qc3 b7 Ne5 Rb1 a1N Rb3 N5d3 Bb2 Bd7 Qc1 Re8 h8R Qdc2 h7 Qd1 Nh4 Nf3 Ng2 Ng1 Rg8 Qdc2 h8R Qd1 Rb6 Nb3 Ne1 Nd2 R8h6 Qa4 Rb3 Rc8+ Kd6 Be8 Bc7 Rca8 Bb8 R8a7 Kc7 Ra8 Kd8 R8a7 c7 Bb5 c8Q Nc6+ Kd7 Ncb4+ c6 Na2 Bg3 e5 Bh4 Kh3 Qe8 Ra8 Qg6 Rf8 Qe8 Rf3 Kc8 Re3 Nf3 Re1 Qe6+ Kg2 Qc2 Rf1 Ne1+ Kh2 Qd6 Kh3 Qg6 Qcd4 Qc5 Qc3 Qe6+
N3Q1n1/kpBn2Pq/r1RBQb1P/p3N3/4B2P/1Rq4q/P1B4n/2K1n3 b - - 0 1 legal: proof: e4 h5 b4 g5 d4 a5 f3 d5 e5 c5 bxc5 g4 c4 dxc4 d5 h4 g3 Ra7 gxh4 g3 h5 Bg4 fxg4 Ra8 Nc3 Ra6 Nb1 Rd6 exd6 Rh7 Qf3 Rh6 Qd1 Rh8 Kd2 Kd7 h4 Kc8 d7+ Kc7 g5 f5 d6+ Kc6 g6 e5 h6 e4 g7 f4 Qe2 g2 Nf3 g1Q Na3 Qg4 Rb1 Qg1 Bg2 Qf1 Rb3 Be7 Nb5 Bf6 Ba3 e3+ Kc2 c3 Nc7 Qc8 d8B Qh3 Na8 Nd7 Bc7 Qa1 Qc4 e2 Rc1 e1N+ Kd1 Qb1 Qe6 Qbf5 Rc2 Qe4 Kc1 Qh7 Bb4 Kb5 c6 Ka6 Ne5 Ka7 Be4 f3 Ba3 f2 Bb4 Nc5 d7 f1N d8Q Nh2 Qde8 Nd7 Bbd6 Nf1 Rg2 c2 Rg6 Nh2 Bd8 Ne7 c7 Rf8 c8B Ng8 B8c7 Rf7 Rgg3 Rf8 Rgc3 Rf7 Rc6 Rf8 Kd2 c1Q+ Ke2 Qcc3 Kd1 Bd8 Bc2 Rf6 Kc1 Rg6 Q6f7 Bf6 Qfe7 Nc5 Bf5 Nd7 Be4 Rg5 Nd3 Rb5 Qe6 Rb6 Ne5 Ra6 Rb4 Nb8 Rbb6 Nd7 Rb3
1bK1nQ1B/1pBRNPn1/4r3/nP5n/pk1nr1PQ/5P2/1R3N2/1BB3r1 b - - 0 1 legal: proof: b4 d5 a4 a5 c4 g5 cxd5 f5 h4 gxh4 e4 Bd7 exf5 Bb5 axb5 Qd7 Nf3 Qd6 Ng1 Qa6 bxa6 Kd8 Rh3 Kd7 Rh1 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 g4 e5 d4 h5 b5 h3 f3 h4 f6 h2 Kf5 a4 f7 h3 a7 e4 Qd3 c4 Qd1 e3 Nc3 e2 Qd2 e1R Qf2 Nc6 Ra2 Rh6 Qh4 Rae8 a8Q Na5 Rb2 Rhe6 Bd3 Nf6 Bb1 Bh6 Qc8 Bf4 Qa8 R8e7 Qah8 Ne8 Qf8 Kc7 d6+ Kb6 d5 Kc5 d7 Bb8 d8B R1e4 Re2 Kb4 d6 Rd7 Bc7 Rde7 Nd1 c3 d7 c2 Rd2 Re1 Ne2 Rg1 d8B Re4 Rd7 Re6 Bb2 c1N Ng3 Ncb3 Bc1 Re4 Nf2 Nd4+ Kg5 Re6 Nf5 Re4 Qg8 R7e6 Bf6 Rge1 Rg1 h1N Rg2 h2 Ne7 Ng3 Bh8 h1N Qf8 Ngf5 Rh2 Rg1 Rg2 Rb6 Rh2 Nfg7 Rg2 Nd6 Kf6 Ng3 Rh2 Rf4+ Ke5 N3h5 Kd5 Nde8 Rg2 Rg6 Ke5 Nef6 Kd6 Re4 Nh3 Re2 Rd8 Nd5+ Kd7 Ndf6+ Kc8 Nfe8 Rd7 Re4 Rf2 Rge6 Rb2+ Kc4 Nf2 Kc5 Rc2+ Kb4 Rb2+
1k2Q2n/2pn3P/1B1pn1P1/3q4/1Q5R/N1NBR2P/3P2qb/2KnbNNn b - - 0 1 legal: proof: b4 h5 c4 a5 g4 b5 gxh5 Ra6 Ba3 Rb6 Bc1 axb4 Bg2 b3 Bh3 b4 Bf1 Rb5 cxb5 Bb7 Bg2 Ba6 Bf1 Bc8 e4 g5 f3 d6 e5 Kd7 Ne2 g4 Ng1 g3 Ne2 Ke6 Ng1 Kd5 e6 Bd7 exd7 Ke6 Ba3 Rh7 Bb2 Rg7 Bc1 Rg4 fxg4 Bh6 Bh3 Bg7 Bf1 Bf8 a4 f5 h6 f4 g5 f3 b6 b2 b7 g2 h3 b3 a5 f2+ Ke2 Bg7 g6 Be5 a6 Bh2 h7 Nh6 a7 Qg8 d8N+ Kd7 a8Q e5 Ra5 e4 Na3 b1Q Ra4 b2 Nf7 e3 Ng5 Qd5 Qb3 Nf7 Kd1 Qbe4 Bd3 b1N N5f3 f1N Qb4 Ng3 Bb2 e2+ Kc1 e1B Bd4 Nc3 Be3 Kc6 Bb6 Nd7 Qe8 Nd1 b8N+ Kb7 Nc6 Nh8 Na7 Qe2 N7b5 Qf2 Ne2 g1N Nbc3 Qg2 Nc4 Nf5 Na3 Nd4 Ng3 Ne6 Nf1 Ne2+ Kb1 Ng3 Kc1 Qf2 Rg1 Nh1 Rg3 Qg2 Ng1 Nd8 Re3 Kb8 Qa5 Nhf2 Rh4 Nh1 Qe5 Ne6 Qb4 Nf4 Qe7 Ne6 Qe8+
6qr/1n5P/3NQ1PB/B2b2Rq/Pn3pN1/1Q3bPk/Qp1p2r1/1K2QR2 b - - 0 1 illegal: No proof kernel
1b4n1/B3BPpQ/2bP1pnn/3pPb2/1N4P1/kRrq4/N1R1Q2K/2Q2Q2 b - - 0 1 illegal: No proof kernel
R2B3r/KQQ1b1rB/RP2R3/k3P3/1n3pP1/1p3p2/3P1rRb/n1N2Nr1 b - - 0 1 illegal: No possible last move
7N/1pr3bK/rk1r1pPQ/R1P1P3/QrP3R1/q3p1N1/3Q4/qB2B1Qb b - - 0 1 illegal: No possible last move, all moves rejected
3R4/4KNpn/5N1b/R1R2p2/Pk3BPr/3P1q1p/3pQQnP/q2B1qR1 b - - 0 1 legal: proof: d4 a5 c4 c5 f4 e5 fxe5 b6 b4 b5 cxb5 axb4 Nd2 d5 Ne4 c4 Qb3 Bf5 Nd2 Bd3 Nb1 Ra6 Kd2 Rc6 Qd1 Rc5 dxc5 d4 Ke1 Bg6 Kf2 d3 Ke3 d2 Kf3 Bd3 exd3 Kd7 Ke2 Ke8 Kf3 Ke7 Kg4 h5+ Kf5 c3 g4 b3 b6 f6 b7 c2 e6 b2 c6 Kd6 c7 Kc5 c8R+ Nc6 b8R h4 e7 h3 Ke6 f5 e8Q Ne7 Qe2 Qa5 Nc3 b1Q Nd5 Qb7 Nf6 Ng6 Nf3 Bd6 Ng5 Bf4 Bb2 c1Q Rg1 Kb4 Nf7 Rh4 Be5 Bh6 Bf4 Nce7 Rc5 Ng8 Rd8 Qf3 Qf2 Qcd1 Be2 Qf1 Bd1 Qa3 Nd7 Nf6 Qe7 Nh7 Nf6 Qc3 Kd6 Qc1 Qee2 Qb1 a4 Qb2 Rac1 Qa2 Ra5 Qa1 Be5 Nf4 Ke7 Ng2 Rcc5 Rh5 Bb8 Rh4 Bf4
2Kb4/2BP1N1r/N2RR3/5pPq/rpk3q1/2p3p1/2N1PPqQ/1Q1BrN2 b - - 0 1 legal: proof: b4 d5 d4 e5 c3 a5 dxe5 axb4 c4 d4 Nd2 Be6 Nb1 Bd5 cxd5 Ke7 Nf3 Kd7 Ng1 Ke8 g4 f5 h4 Nd7 g5 Nh6 Bd2 Nf6 Bc1 Nf7 gxf6 g5 Rh3 g4 Rh1 Ng5 hxg5 Be7 Rh3 Bc5 Rh1 Bf8 Kd2 Kd7 Kd3 b5 a4 h5 e6+ Kd6 a5 Kc5 a6 g3 e7 b3 e8N h4 d6 b4 a7 b2 f7 h3 d7 c6 Na3 b1R Bg2 h2 Be4 Rc8 a8N Rb2 Nc2 Rh3 Nd6 Rb8 Nf3 Rh4 Nd2 Rh5 Nf1 Be7 f8Q Rh7 Nf7 Qe8 Ra6 Rb1 Qh8 Bd8 Nc7 Ra8 Bf4 Rc1 Rg1 h1Q Rb6 Rca1 Qb1 R8a4 Bd5 Qg2 Bb3 Rg7 Qh2 Rh7 Ne5 Qh5 Na6+ Kd6 Kc4 d3 Rh1 d2 Nf7+ Ke6 Bc7 d1Q Rg1 Qd6 Rh1 c5 Kb5+ c4 Rc6 Kd5 Kb6 Qf6 Kb7 Qd4 Kc8 Qf4 Re6 Qfg4 Ne1 Kd4 Bd1 c3 Nc2+ Kc4 Qg1 Qg6 Rh6 Q6h5 Qh2 R1a2 Na1 Rb2 Rd6 Rc2 Rhe6 Rc1 Bc2 Re1 Bd1 Q4h3 Nc2 Q5g4 Qb2 Qhh5 Qb1
1k2bbNK/nnp1p1B1/N5p1/B4P1P/1b6/P1p2BPR/1bQ2Q1B/R5n1 b - - 0 1 illegal: No proof kernel
K2R3r/6qn/kBrR1n1r/2N3P1/3N1P2/n1B2q1B/1bQP1Pb1/1bqB1Q2 b - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 g5 hxg5 b5 axb5 f5 e3 f4 exf4 Bf5 Rh3 Be6 Rh1 Bc8 Ke2 Kd7 Kf3 a5 Ke4 h5 Kd5 e5 g4 c5 b4 Kc7+ Ke4 Kb7 g6 a4 g7 c3 b6 a3 b5 a2 g5 h4 Rh3 c2 Rh2 c4 Bh3 c3 Na3 Ra6 Nf3 Nd7 Kd5 e4 Ne5 e3 Nd3 e2 Bb2 c1Q Qf1 e1N Nc2 Ba3 Nd4 c2 Bc3 Bb2 Kd6 Ngf6 g8B Qe8 Bb3 Qe2 Rb1 a1Q Ba4 Ka8 Kc7 Nf8 b7+ Ka7 Rh1 Re6 b6+ Ka6 Kb8 Qf3 Ka8 N8h7 Bb3 Rc6 b8Q Bf5 b7 Be4 Qc8 Re6 Bg4 h3 Bf5 h2 Bh3 Ng2 Ba4 Ne3 Bb3 Nc4 Ba4 Rc6 b8B+ Kb6 Qc7+ Ka6 Bb3 Na3 Ba4 Ng8 Ba7 Bf5 Bb6 Rh6+ Qc6 Bg6 Rg1 h1B Rg3 Bg2 Bb3 Qd5 Re3 Bf5 Re8 Ngf6 Rd8 Qf3 Qe4 Qe1 Qc6 c1R Bd1 Qe7 Qe4 Qg7 Qc6 Rc2 Qe4 Bc1 Rb5 Bb2 Rd5 Qc1 Rd6 Bg6 Bca5 Rc6 Bc3 Bf7 Qf5 Ba2 Qc5 Bb1 Qc4+ Nb5 Qb3 Na3 Qa2 Ba1 Qc2 Bb2 Nc5+
Qk3Br1/1P2PP2/3bn3/2r1b3/3n4/1b1bQ1Pn/1NBR1rqB/NR1Kb1B1 b - - 0 1 illegal: No proof kernel
4K1Nb/1Q1n2b1/Bb1k1bQn/rbq2P2/3N4/1N3P2/RB1PPr1N/2rR2q1 b - - 0 1 illegal: No proof kernel
b2NK3/2P3B1/k3BN1N/r2rb3/1P1nnP2/rR2NP1R/1rQ1q3/Q2bq1r1 b - - 0 1 legal: proof: g4 c5 d4 cxd4 a4 h5 gxh5 b5 axb5 f5 e3 f4 exf4 Qc7 Qd3 Qb6 Qd1 Qd8 Ke2 a5 Kf3 g5 Kg4 e5 Kf5 d5+ Kg6 Kd7 Kf7 Kc7 c4 Kb7 h4 a4 b4 g4 b6 d3 c5 a3 f3 d2 h6 e4 h7 e3 h5 d4 h6 g3 Nc3 d3 c6+ Ka6 b7 e2 c7 e1Q Rb1 a2 Rb3 a1R Nh3 g2 Nf2 g1R Ng4 Rb1 Bb2 Nc6 Bh3 Bd6 Nd5 Nd4 Ngf6 Be5 Qc2 d1B Ne3 d2 Be6 Qd6 b8Q Bb7 Rh3 Qd8 Ba1 Rb2 Qc8 Qd5 Ke8 Qe4 Qd8 Ra7 Qd5 Ba8 Qa5+ Kb7 Qa2 Ra3 Qab1 Ka6 Qa2 Rb1 Bb2 Qd3 Qa1 Qde2 Kd8 Nb5 Bc3 Bd4 Ne4 Nf6+ Ke7 Rb2 Kf7 Rhg8 h8N R8g5 h7 Rc5 Kf8 Rh5 Nf7 Rc5 Qcc1 Bc2 h8N d1R Nh6 Rd2 N8f7 Bd1 Qc2 Rf5 Nf2 Ne4 Ke8 Bh8 Be5 Rd7 Bf6 Nd4 Nd8 Rfa5 Nfg4 Rdd5 Be5 Bg7 Bf6 Bf8 Be5 Bd6 Bg7 Be5 Nf6
k2Q2NN/3q3Q/2PP3K/n3b1r1/1n3P1P/n2qQ1qb/Br1Qq2r/BR3R2 b - - 0 1 illegal: No proof kernel
4Q2q/BKnB3r/1Prk2P1/RRb2b2/2N2r2/nBB2QP1/2Pq4/1bb2n1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kd2 Ke7 Kd3 a5 Ke4 f5+ Kd5 h5 e4 d3 b4 h4 b6 f4 e6 d2 g3 f3 b7 f2 g6 a4 e5 h3 b5 a3 b6 a2 Be2 f1N Na3 h2 Kc5 d5 Kb5 d4 Bg4 d3 Qe2 d1Q Qe1 d2 Qe2 Nh6 Qf2 Ra4 Bh5 Ng4 Bb2 Nge3 Bf3 Na6 Kc6 Nc7 b8B Rh7 Bd5 Rf4 Bc3 Nc4 Nh3 Qh5 Qe3 d1R Nf2 Qh6 Rg1 h1B Ba7 Qh4 Rb1 a1B Rb5 Bb2 Qf3 Bc1 Ra5 Bg2 Nh1 Qf6 Rb5 Qh8 Ra5 Bd7+ Kb7 Bh3 Rb5 Bf5 Ra5 Ba4 Rb5 Bb3 Ra5 Nce3 Nc4 Ba2 Rb5 Bb1 Ra5 Ke8 e7 Kd7 e8B+ Ke7 Bg8 Rd6 e6 Rc6 Rb5 Qd2 Bd7 Ned5 Ra5 Nb5 Bf7 Na3 Bg8 Nh2 Re1 Nf1 Re5 Nc7 Reb5 Qd1 Ne3 Kd6 e7 Qd2 e8Q Bg7 Bf7 Bd4 Bb3 Bc5 Nc4+
3BBq1r/1KR1N3/P1B1bB2/2Pr3k/P1bb1R2/P1QQbN2/1n3r2/1q2q2n b - - 0 1 illegal: Other
R1r3k1/2q1rNPr/1RQ1N2n/b4nNB/PbP2Nb1/B1q2Q2/n2r1PK1/8 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 c5 d4 f5 exf5 g5 dxc5 Kf7 hxg5 Ke8 a4 Kf7 c4 d5 g4 b5 c6 e5 c7 h5 f6 h4 Bd2 h3 Ra2 d4 Rh2 b3 Qc1 d3 Rb2 e4 Qd1 b4 Rh1 h2 Bf4 d2+ Ke2 e3 Kf3 e2 Nc3 e1B Be2 Na6 Ne4 Rh7 Bd6 Nh6 g6+ Kg8 g5 Bg4+ Kg2 Rc8 g7 Be7 Rb1 b2 Nh3 b3 Ba3 Nb4 Nf4 Na2 Rg1 h1N Bf3 Ra8 c8Q Ng3 Qc6 Bb4 Qe2 d1R Rh1 Bc8 Bh5 Bg4 Qf3 Ngf5 Rh2 Rc8 Rh4 Rh8 Rh1 Qc7 f7+ Kh7 g8N Rd2 f8N+ Kg7 g6 Rh7 Rc1 b1Q Ng5 Qd3 Rb1 b2 N8e6+ Kh8 Rg1 Qc3 Rh1 Rdd7 Rh3 Rde7 Rh1 Bd2 Rhd1 Be1 Rd5 Bd2 Ra5 Be1 Ra8 Ba5 Rc1 b1R Rc2 Ra1 Rb2 Rd1 Rb6 Rdd7 Nf6 Rd5 Nfe4 Kg8 g7 Rd2 Nd6 Qe5 Nc5 Rd5 Nce6 Beb4 Ne2 Qc3 Ndf7 Rd2 N2f4
N1q4r/KB2Pq2/n3k3/P3b1R1/Nr1nQ1P1/r2qP2b/1BR5/N1N1b1Qb b - - 0 1 legal: proof: f4 a5 h4 d5 c4 e5 cxd5 g5 hxg5 Nf6 fxe5 Ng8 b4 axb4 Kf2 Kd7 Ke3 b5 Kd4 h5 a4 f5 g4 c6 d6 f4 Kc5 h4 d4 h3 e3 b3 g6 b2 g7 h2 d5 f3 Nd2 b1R Bg2 f2 Nb3 f1Q Ne2 b4 Bb2 Qf5 Nec1 Nh6 g8Q Ba6 Qh7+ Bg7 Ra2 Qf7 Qg1 Qc8 Kb6 c5 Qe4 c4 Na1 b3 Bf3 c3 e6+ Kd8 d7 Ke7 d8N c2 Bg2 Nf5 Nb7 Nd4 Nc5 Be5 d6+ Kf6 e7 Bf1 d7 Na6 Bf3 Bh3 d8N Ra7 Nde6 Ra8 Ne2 c1B Nc7 Bd2 Nc1 Ra7 Na8 Be1 Bc3 b2 a5 Rd7 Na4 Ke6 Bg2 Rc7 Bf3 Rc4 Ka7 Rb4 Qh7 Rb3 Bb7 Ra3 Qe4 Rb3 Qg3 Ra3 Rf1 h1B Rf5 Rb3 Qg1 Rb4 Nc2 Ra1 Rg5 b1Q Rb2 Ra3 Na1 Qd3 Rc2 Rh5 Bb2 Rh6 Rc3 Rh8 Rc2
8/b1R1r2b/1nQPBrNb/K4Pbn/1rPB1b2/3k1b1P/2qNR2R/2Q3R1 b - - 0 1 illegal: No proof kernel
b1B5/r4PKb/2PnP1QN/1bN2b1r/RbN2P2/n3b3/1Q1qkR2/4BNn1 b - - 0 1 illegal: No proof kernel
RN1Q2r1/B2P2P1/n2qbr1B/1PQ1nbrB/2b1b3/k2N2r1/6Pb/B4KR1 b - - 0 1 illegal: No proof kernel
2R4N/b1b3rr/BQ1P2n1/NP3rr1/1B1n2R1/6Qq/1QQk1PP1/Kn1bb3 b - - 0 1 illegal: No possible last move
1bQ1n1R1/2P1NbBB/1Pnknr2/1P1Q3b/2r5/R3qr1P/4R1RN/2rnK3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 cxd4 a4 h5 gxh5 f5 axb5 Nh6 exf5 Ng8 c4 d5 f4 Kd7 b4 g5 b6 a5 h6 e5 b5 d3 c5 a4 h3 g4 f6 d4 h7 d2+ Ke2 a3 f5 e4 f7 a2 f6 d3+ Kf2 g3+ Kg2 e3 Qe2 d1B Rh2 d2 Nc3 Qe7 Bb2 Ra4 Rb1 a1N Qc4 e2 Nf3 e1R Nd5 Re3 Qb3 Nc2 Ra1 Nd4 c6+ Ke6 Kg1 g2 Kf2 g1R Bd3 Bd7 Bg6 Be8 Rg2 Be2 Ra3 Rc1 Qc4 d1N+ Ke1 Qc5 Be4 Bd6 Nh2 Bh5+ Re2 Ke5 f8Q Rf3 f7 Bc7 Ne7 Nf6 Bc2+ Kd6 Qb3 Re3 Qg8 Rf3 f8R Bef7 Re8 Ne6 Qg4 Ng5 Qc8 Qe3 Qc4 Rg8 h8R Rg6 Rh6 Ne6 Rg8 Ne8 Bg7 Rgf6 Rg6 Rb4 Rg2 Ra4 Qe4 Rc4 Qf5 Nd7 Qg5 Bb8 c7 Ne5 Bh7 Nc6 Qd5+
QB3qBQ/K4PP1/R5Nr/P1Bqb1R1/k2r3r/1P3N1B/2b1rn2/n1b1b3 b - - 0 1 illegal: No possible last move, all moves rejected
1krB4/3q2RK/2nq1NRN/rQQP3R/1b1pP3/Pb3Bnb/3q3P/R6r b - - 0 1 illegal: No proof kernel
RbQ4r/1n3b1n/QNkN4/1b1p4/1Prq2qP/2qNr1B1/B2PNP2/RK6 b - - 0 1 legal: proof: e4 b5 b4 f5 exf5 h5 g4 c5 gxh5 cxb4 a3 b3 Qg4 b4 axb4 Qa5 Qd1 Qd8 c4 e5 h4 g5 c5 a5 c6 e4 f6 a4 c7 a3 h6 e3 h7 a2 Nf3 b2 Qc2 g4 Kd1 g3 Rh3 g2 Ng5 g1Q Qf5 e2+ Kc2 e1R Ra3 Nc6 Bc4 Qg4 Qd3 Na5 Nh3 Ba6 c8N Nb7 Nc3 Bd6 Nf4 Re3 Nb6 Rc8 Nce2 Bb5 Ra8 Bb8 f7+ Ke7 Qa3 Kd6 f8Q+ Kc6 Qa6 Nf6 Nd3 b1B+ Kb2 d5 Bb3 Qe7 Qd8 Rc7 Qc8 Qc5 Bc4 Rd8 h8N Nh7 Nf7 Rh8 Nd6 Qcd4+ Ka3 Bc2 Bb2 Bb1 Bc3 Bc2 Kb2 Bb1 Nc5 Bg6 Nd3 Bf7 Kc2 Qde4 Be5 Qd4 Rd1 a1Q Bg3 Qa3 Ba2 Qac3+ Kb1 Qdg7 Qg8 Rce7 Qf8 R7e4 Rf1 Qcf6 Kc2 Rd4 Ra1 Rc4+ Kb1 Qc3 Qd8 Q7d4 Qc8+
2KN1qk1/8/nPP1pQ1q/3NNBbR/r3rn1B/1b2PqPQ/1N3r2/1n3R2 b - - 0 1 legal: proof: d4 g5 a4 b5 axb5 c5 Be3 cxd4 Ra5 h5 Ra1 g4 Bc1 g3 fxg3 h4 Qd2 h3 gxh3 Nc6 Qd1 Nb8 Kd2 d5 Kd3 f5 c4 Kf7 b4 a5 b6 e6 c5 a4 h4 f4 b7 f3 b5 f2 h5 a3 h4 a2 b6 Bh6 c6 Ra5 Nh3 Bg5 h6 Qe8 h7 Ra4 h5 Be7 h6 Kf8 Na3 Na6 b8N Bg5 Nf4 Nf6 Nc4 Nh5 Bh3 f1R Bf5 Rf2 Qf1 Qd8 Rb1 a1Q Qh3 Kf7 e3 Qf8 Ba3 Rg8 h8Q Rg6 Qf6+ Kg8 Rbg1 Qd1+ Nd2 Qf3 Nd7 Rg7 Ne5 Rg6 Kc2 d3+ Kb3 d4 Ndc4 d2 Be7 d1N Nd5 d3 Rf1 d2 Nb2 Nc3 Bd8 Nb1 Be7 Ra5 Kc4 Ra4+ Kb5 d1Q Bd8 Rg7 Rh2 Nf4 h7+ Kh8 Rhh1 Qh5 Rh2 Qdf3 Rhh1 Qh6 Be7 Nb4 Kc5 Bb7 Kd6 Ba6 Kc7 Bc4 Rh2 Na6+ Kd7 Qf7 Kc8 Bb3 Qg2 Rd2 Rh5 Rf2 Qh3 Qg8+ Qf8 Rf7 Qd8 Kg7 h8N Qf8 Bf6+ Kg8 Be7 Re4 Bf6 Ra7 Nhf7 Qg6 Be7 Bh6 Bh4 Bg5 Qe8 Qh6 Nd8 Nb8 Qe7 Raa4 Qf6 Na6 Rh1 Ng2 Rd1 Nf4 Rf1
1B3k1r/1RnKb1Qq/Pbp2PP1/q2nN1Pb/B4RN1/1q5n/1R5R/r3Q3 b - - 0 1 illegal: No possible last move, all moves rejected
Rqn2N2/B5P1/1Pn2p2/1Pqnb3/2kRr2R/2b4K/N1BPq3/1RQr2Qb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 e5 cxd5 exf4 a4 Be7 axb5 Bf8 Kf2 Kd7 g4 Kd6 Kg2 Kc5 e4 a5 d6 h5 d7 a4 b3 a3 e5 f3+ Kh3 f2 b6 h4 e6 f6 e7 a2 e8Q Bb7 g6 Ra4 g5 Ne7 g7 Re4 g8R Nc8 g6 Bd6 g7 Nc6 Ne2 Be5 b4+ Kc4 b5 Qe7 Bg2 f1N d8R Ne3 Qg6 Nd5 Nbc3 Qe8 Rb1 a1B Na2 Bac3 Qg5 Qh5 Nd4 Qe2 Ne6 Rh5 Qf4 Rf5 Qh6 Rf1 Qg5 Ba8 Qc2 Rd1 Nf8 Bb7 Qg3 Ba8 Bb2 Bb7 Kh2 h3 Qc1 Ba8 Ba3 Bb7 Bd6 Ba8 Qf4 Bb7 Kg3 h2 Kh3 Ba8 Qg3 Bb7 Rf1 h1Q+ Qh2 Qg1 Rf4 Qc5 Qg1 Na5 Bf1 Nb4 Nh7 Ne7 Rge8 Kd3 Qg3+ Re3 Bg2 Bb2 Bc6 Qc4 Rf5 Qg8 Bd7 c5 Rg5 c4 Rg4 c3 Rh4 c2 Bb8 Bh1 Ba7 Nac6 Bg4+ Bbd4 Qb2 c1Q Bh5 Qc3 Qc1 Qc5 Bf3 Qf8 Qg1 Qg8 Rf8 Qh8 Ra8 Bc3 Rf7 Qb8 Nf8 Nc8 Rd7+ Bed4 Rd8 Kc4 Rd6 Re5 Be4 Re6 Bc2 Re4 Rd7 Be5 Rd3 Nd5 Rd4+
R5q1/1b2PrP1/nq1k2p1/2P1Nn1B/b3P2Q/nR3r2/2R1KN1B/q1bRQ3 b - - 0 1 illegal: No possible last move, all moves rejected
1Qr2Q1Q/RN2pr2/q1Q1bP1K/qb1P3P/4nB2/1nR1P1N1/2rb2q1/k4B2 b - - 0 1 legal: proof: c4 a5 g4 f5 b4 axb4 Qc2 d5 cxd5 h5 Qd3 h4 gxf5 h3 Qxh3 Qd7 Qh7 Qd8 a4 Kf7 f4 Kf6 Kf2 g5 Kg3 b5 Kg4 c5 Kh5 c4 d4 b3 h4 b4 a5 c3 d6 c2 a6 b2 d5 b3 d7 g4 a7 g3 Nc3 b1Q Bb2 c1R Rh2 g2 Ra2 Bh6 Ra4 Na6 Rh1 Rc2 Ba1 b2 Rh3 Qa2 Nb5 Qa5 d8Q Nc5 Rc3 b1B Nd6 Be6 Qb8 Nb3 Nb7 Qa3 Bb2 Qd6 Bc1 Qda6 Qd6 Ba2 Qc6 Rf8 a8Q Rf7 Qb8 Bb1 Nf3 g1Q Nh2 Qg2 Ra3 Bg5 Ra1 Nh6 Be3 Rc8 Qh8+ Rg7 Ra4 Ng4 Bc1 Nf2 Ra3 Kf7 f6 Ne4 f5 Bd2 Ra1 Rb2 Ra4 Bd3 Ra1 Bb5 Ra2 Rg5+ Kh6 Rc2 h5 Rg4+ Kh7 Rf4 Kh6 Be1 Be3 Bd2 Ra1 Rf2 Bf4 Ba4 e3 Rb2 Nf3 Qa8 Bg3 Ng5 Bh2 Qb6 Nd4 Bb5 Ne2 Rf3 Ra6 Qa5 Be5 Qa7 Ng3 Q7b6 Ra7 Qba6 Bd6 Rf4 Rd3 Rc2 Be5 Rf8 Bd6 Rfc4 Qb6 Rcc8 Bf4 Ke8 f7+ Kd7 f6 Ne4 Qd4 Qd8 Bg5 Qda5 Qa8 Kc7 Nd8+ Kd6 Qe5+ Kc5 Rc3+ Kb4 Qc6 Ka3 Qb8 Kb2 Nb7 Ka1 Bf4 Rg8 f8Q Rg7 Nf5 Rf7 Ng3
2nQ4/1Rp1rN1B/3qP2N/2PnQ2r/k3P2b/2RRn3/Pr3Rq1/B2bK1b1 b - - 0 1 legal: proof: g4 a5 d4 g5 h4 e5 dxe5 f5 gxf5 g4 b4 Qg5 hxg5 axb4 c4 d5 f4 Kd7 e4 Kc6 g6 b5 f6 h5 f7 d4 f5 g3 f6 d3 c5 b3 g7 g2 Qc2 b2 Qc3 d2+ Ke2 d1N Bf4 h4 Rh2 b4 Nh3 Kb5 Ke1+ Ka4 Bc4 g1B Na3 b1Q Nb5 b3 Nf2 b2 Rh3 Nd7 Ng4 Be7 f8R Nb6 f7 Rh5 Nd6 Qd3 Rc1 Nf6 g8R b1R Nh6 Bg4 Be6 Bf3 Bf5 Re8 e6 Be2 Rf3 h3 Bh7 h2 Be5 h1Q Rc2 Qd4 Rd3 Ne3+ Rc1 Qd5 Rg2 Qh2 Rf2 Bd1 Rb2 Nc8 Rb7 Qh3 Qb2 Bd8 Qh2 Qc6 Ba1 Qg2 Rcc3 Nfd5 Qe5 Qa6 Rg8 Qc6 f8Q Rb2 Rg5 Qd7 Rf5 Bh4+ Rf2 Re7 Ndf7 Qd6 Qd8
n2R2r1/QPP1Qq1b/nr4nb/r1qp2NK/6BR/1P1P4/1Nk3BB/6qB b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 c4 Qg4 c3 Qb4 Qc7 axb5 Qa5 b3 Qc7 Qa3 Qd8 Qb2 cxb2 Ke2 Kf7 Kf3 h5 g4 a5 c4 e5 b6 h4 b7 h3 c5 a4 d3 d6 c6 a3 f6 Kg6 f7 a2 c7 h2 Nc3 b1N Bg2 Qd7 Na4 Bh6 f8Q Nc3 Nb2 Qf7+ Bf4 Nd5 Nh3 Nb6 Qe7 e4+ Kg3 e3 Kh4 Kg7 g6 e2 g5 e1Q Kh5 Bf5 Bg3 Qd2 f4 Ra5 Rag1 Be4 f5 a1R Rf1 Qc2 Rf4 Rb5 Rh4 Ra3 Rg1 h1Q Bh2 Ra4 Ra1 Rab4 Ra8 Na6 Rd8 Qg1 Bh1 Na8 Bg2 Bc6 Qe3 Ra5 Qa7 Ne7 Bh1 Rg8 f6+ Kh8 Bg2 Qcc5 Bh1 Qf8 f7 Be4 g7+ Kh7 Bg2 Ng6 Bh1 Qe7 f8Q Qf7 Qe7 Rb6 Bg2 Rf8 g8B+ Kg7 Bh7 d5 Bh1 Rg8 Bg2 Nh8+ g6 Bf5 Ng5 Be4 Qd7 Kf6 Bh1 Qg3 Bg2 Ke5 Qe7+ Kd4 Bh1 Kc3 Bg2 Qf6 g7 Kc2 Bf5 Qe1 Bg4 Bh7 Bh1 Qd1 Bgf3 Qdg1 Bfg2 Re8 g8B Ng6 Bf7 Rg8 Be6 Qf7 Bg4
4R2n/5B1r/1KR1P1bP/nQp5/rqRNR2P/b1bP1bbQ/1B6/1k3n1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 h4 Kd6 b4 Ke5 e4 Kd4 h6 a5 b6 g5 e5 f5 d3 g4 d6 g3+ Kf3 g2 b7 a4 b5 a3 d7 a2 b6 Ne7 Nd2 Kc3 Rh2 Rh7 Nb3 Ng6 Nh3 g1B Re2 Bh2 Nd4 Ra4 Nf2 Nc6 b8Q Nh8 b7 Na5 Bg2 Ba3 Qh1 c5 Re4 Qb6 d8R Bg3 Re8 Qb4 Qh3 Bd7 Rb1 a1B Bb2+ Kd2 Rc8 Be8 Rc6 Bf7 Nh1 Bg6 Nb5 Kc2 Rc1+ Kb3 e6 Ka2 Rcc4 Kb1 Nd4 Bh2 Ke2 f3+ Ke3 f2 Bf3 f1B Bh5 Be2 Qe8 Bf3 b8R Bc7 Qd7 Be5 Re8 Bg3 Qb7 Bh2 Qb5 Bg3 Bc1 Bc3 Bb2 Bf2+ Kf4 Bfe1 Ke5 f4 Kd5 Bg3 Qb6 Bg4 Qb5 f3 Re3 f2 Re4 B6f5 Bf7 f1N Rb6 Bg6 Rc6 Bf2 Kd6 Bf3 Kc7 Bg3+ Kb6
1Q5b/2Q1bRNb/P6R/2P2bPB/nQ3p1n/4nP1r/K1NQk2q/4Bbr1 b - - 0 1 legal: proof: e4 a5 d4 d5 exd5 c5 dxc5 g5 b4 axb4 h4 Nf6 hxg5 Ng8 Kd2 Kd7 g4 e5 a4 h5 c4 b5 Kc2 f5 Kb3 h4 d6 Ke6 c6 e4 f3 Ke5 c7 h3 c5 f4 a5 e3 d7 h2 g6 e2 a6 e1B g7 Rh3 Ka2 b3+ Kb2 b4 Qe2+ Kd4 Na3 Nh6 g8Q Nc6 Nb1 Qh4 Qge6 Be7 Bd2 Ne5 Ra5 Nf5 Na3 Ne3 Rb5 Ng6 d8Q+ Bd7 Kb1 b2 Ka2 b1N c8Q Qf2 Qb7 Nh4 Qdc7 Rg8 Qeb6 Bf5 Qbb8 Rg5 Qd1 Qg2 Ne2+ Kd3 Nc2 b3+ Kb2 Nc3 Ng3+ Qe2 Nh5 Na4+ Ka3 b2 Ka2 Rg6 Ng7 Bf2 Qc1 Be1 Ba5 Bc3 Bb4 Bd4 Be1 Rg5 Bg2 Qf2 Qa5 Ke2 Qb4 Be5 Rb6 Rg6 Rg1 h1B Rf6 Qg3 Rf7 Qh2 Rf1 Rh6 g5 b1B+ Kb3 Rg3 Bh3 Bg2 Rh1 Bf1 Bg4 Rg1 Bh5 Bh7 Na1 Bbc2+ Ka2 Bcf5 Nc2 Bb2 Ne8 Bh8 Ng7 Nhg2 Bg6 Rh4 Bh5 Rh3 Qcb2 Nh4 Qc1 Bg2 Qcd2+ Kf1 Nd4 Rg3 Qcc8 Ng6 Qd7 Qh4 Nc2 Qh3 Q2d6 Ke2 Q7c7 Bf1 Bg4 Qg2 Rh6 Qh2 Qdd4 Nh4 Bh5 Rh3 Qdd2#
1rb1r2n/2P1nnP1/Q3B1b1/pQQNb1B1/1N2k3/RQPP1q2/n1K4n/2R5 b - - 0 1 illegal: No possible last move, all moves rejected
7N/p3b3/R1RbP2n/QR1R2bn/1PPP4/rrBkq1r1/B2Nbb2/2K2Q2 b - - 0 1 illegal: No proof kernel
Q1N3r1/6nP/1bB1Rbpr/1R3R1N/1q1R2r1/Q1PbnP1k/2Pb4/1n2B2K b - - 0 1 legal: proof: e4 b5 g4 h5 a4 hxg4 axb5 f5 exf5 c5 Be2 c4 Bf1 c3 dxc3 Bb7 Bf4 Ba6 Bc1 Bc8 h4 Kf7 b4 Kf6 f3 d5 Kf2 a5 Kg2 e5 b6 g3 b7 d4 b5 d3 b6 g6 h5 e4 h6 d2 Qe2 Kg5 f6 a4 f7 e3 Ra2 d1N Bd2 a3 Qb5+ Bf5 Qa4 Ne7 Qa5 Qd6 Ne2 Na6 b8Q Nc5 b7 Nb3 Qb4 Bd3 Qa5+ Nf5 Rg1 Kh4 Kh1 Qb4 Nf4 e2 Be1 Bg7 f8R Nde3 Nh5 Bf6 Nd2 Ng7 Nc4 Nd2 Nd6 Nb1 Nc8 Rh7 Ra1 a2 Qa3 Rh8 Rg2 Kh3 h7 Ra4 Qa8 Rg8 Bd2 e1B b8R Qb6 Re8 Rg4 Re6 Qd4 Rb5 Qb4 Re2+ g2+ Kg1 Nd1 R2e4 Ne3 Be2 Rd8 Rd4 Rg8 Bc1 Bd2 Rf5 Be4 Bb5 Bd3 Bd7 Kh4 Kh2 g1B+ Kh1 Kh3 Bb5 Bh2 Be8 Bc7 Bc6 Bb6 Q3a7 Na3 Rb1 a1R Rb3 Nb1 Qe7 Qa5 Rbb5 Ra4 Qa3 Rh4 Rd8 Rag4 Rd4 Qb4 Ng3 Rh6 Nh5 Be1 Bd2 Nf1 Bf4 Ne3 Bg3 Bd2 Be1
4b1QK/b2Rb3/2R1rn2/2b1k2N/6N1/1p2PqP1/Bn1PPR2/rnBR1Qq1 b - - 0 1 legal: proof: c4 a5 h4 d5 b4 dxc4 bxa5 g5 hxg5 e5 Bb2 e4 Bc1 e3 fxe3 Qd4 Kf2 Qd7 Ke1 Qd8 Kf2 Kd7 Kg3 Kd6 Kf4 b5 a4 f5 g3 c5 g6 h5 a6 b4 a7 c3 g7 c4 a5 c2 a6 c3 Ba3 c1B Qa4 h4 Qc2 h3 Rh2 Rh6 Qb2 c2 Nc3 Nd7 Qb3 Re6 Nb1 Ngf6 Kg5 f4 Kh6 f3 Qa4 f2 Kg6 Nc5 g8Q Bd7 Nc3 Nce4 Nd1 Ke5 Bg2 f1Q Nf2 Nc3 Bd5 Be7 Kg7 Bb2 Kh8 c1B Qd1 Nb1 Ba2 b3 Rg2 h2 Ngh3 h1N Nf4 Qb8 Nh5 Qg1 Qf1 Qf8 Rh2 Bd4 Ng4+ Ke4 Rf2 Be8 Nf4 Bcb2 Nh5 Bbc3 Bc1 Bcb4 Rg2 Bbc5 Rf2 Rd8 a8R Ba7 Nh2 Ke5 Rc8 Bdc5 Rc6 Ra8 Ng4+ Ke4 Rh2 Nf2 Rg2 Nd1 Rf2 Bab6 a7 Nb2 Qd1 Nd7 Qf1 Qf3 Qg5 Nf6 Qg8 Rd8 a8R Ba7 Rb8 Rd4 Rd8 Ra4 Nh6 Ke5 Rdd6 Rh4 Rd7 Rh1 Ng4+ Ke4 Rcd6 Nc3 Qe1 Qfg2 Rc6 Qf3 Qd1 Qh2 Qg1 Nd3 Ba3 Kf5 Nh6+ Ke5 Qg2 Re1 Qf1 Qg1 Rb1 Rc1 Rb2 Ra1 Rb1 Bab6 Re1 Ba7 Rd1 Nb1 Bc1 Nb2 Ng4+
1BbQ1B2/2bNR3/N4K1Q/1k3P1P/4q1B1/nq2qqnp/PP1R2r1/4B1br b - - 0 1 illegal: No proof kernel
b3KN2/1n5k/B5Qq/1RQ1PrPr/PRr3rb/B3B3/2p1BP2/Nq1nn3 b - - 0 1 illegal: No possible last move
4N1qB/1kQ4n/r2nP1bQ/n1r1R2N/1q1q2P1/p2P1K1b/P2NN3/5BRn b - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 e5 e4 d5 b4 Bd6 bxc5 dxe4 Kf2 e3+ Ke2 e4 Ke1 Be5 fxe5 Ke7 Rh6 Kd7 Rh1 Ke8 Ke2 Kd7 c4 Kc7 c6 h5 g3 b5 c5 a5 g6 f5 g7 h4 Bg2 b4 Qc2 a4 Nh3 f4 Qc3 f3+ Ke1 b3 Qb4 e2 Kf2 a3 Qc3 b2 Rg1 Nf6 g8N Ra6 Ke3 f2 Nf4 f1N+ Kf2 e3+ Kf3 Bf5 e6 h3 Qa5+ Kc8 c7 h2 Bh3 Kb7 c8N Qe8 Qd8 h1N Bg2 Bh3 g4 Nfg3 Bf1 e1Q c6+ Ka8 c7 e2 Nd6 Nf5 c8Q Qd1 Qcc7 Rh5 Qg7 Nh7 Nf6 Qg8 Nde8 Nd6 Qh6 Rc5 N6h5 Qa4 Nc3 e1Q Ne4 b1B Bb2 Kb7 Bh8 Bd3 Rc1 Nc6 Rc4 Qad1+ Ne2 Qa4 Rd4 Qed1 Rd5 Qb4 Re5 Bc2 N4f6 Bg6 d3 Na5 Ne4 Qa1 Nd2 Qad4 Qc7+
R4r2/1rB4r/2QP1q2/KbnNpNbR/2bP3P/2B2RQ1/k2bP3/2q1Rn2 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 c4 Nf6 cxd5 Ng8 Bh3 Rh6 fxg5 Na6 g6 Nb8 g5 Rh8 Bg4 hxg4 b4 Kd7 d4 Kd6 Kd2 e5 Kc3 a5 h4 c5 b6 f5 b5 f4 g7 c4 g6 f3 b7 a4 Kb4 g3 b6 c3 Nh3 g2 Nf2 g1B Qf1 c2 Bf4 c1Q Bg5 a3 Nh3 f2 Qg2 f1B Be3 a2 Kb5 Qf6 Ng5 Nd7 b8R Ba6+ Ka5 Nh6 g8Q Nf5 g7 Rh7 b7 Be7 Rh3 Nc5 Ne6 Ng3 Bd2 Be3 Bc3 Bd2 Re8 Ra7 b8B+ Rc7 Qe4 Bg2 Qc2 Nf1 Rf3 Bb5 Qa4 Kd7 d6 Rb7 Bc7 Kc6 Ra8 Kd5 Qc2 Kc4 Qe4 Kb3 Qc6 Bd8 Qge8 Qh6 g8R Qg7 Qg6 B8g5 Rh8 Qf6 Ng7 Bh3 Qd3 Be6 Nf5 Bec4 Qe3 Rd7 Rh5 Rh7 Bb4+ Kb2 Nc3 Kb3 Nd5+ Kb2 Bc3+ Ka3 Rb1 a1R Qg1 Ka2 Rb3 Rb1 Qg3 Rb8 Rb4 Rf8 Rb3 Ba6 Rb7 Rb6 Rba7 Bab5 Ra6 Rb7 Rb6 Ba6 Rb3 Bab5 Rb1 Qb2 Rd1 Qc1 Re1
2n4q/1Kb2P1R/1P3Bk1/2Nnr1nq/bBQN2rn/3R1BBP/2Qp1b1P/8 b - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 c5 exf5 cxd4 Bd3 h4 Bf1 h3 gxh3 Rh4 Ne2 Rh5 Ng1 Rh8 Ke2 Kf7 Kf3 a5 Ke4 d5+ Ke5 g5 f4 a4 c4 g4 b4 d3 b6 d4 b5 d2 f6 d3 f5 g3 b7 a3 c5 a2 b6 g2 c6 Rh4 c7 Bd7 Kd5 e5 c8Q e4 Bb2 e3 Be2 Rg4 Qdc1 d1Q Qd2 Ba4+ Ke5 Na6 b8B Nb4 Nc3 Ne7 Ne4 Nbd5 Nc5 Ra5 Bf3 e2 Qc2 e1N Ne2 g1N Nd4 Ng2 Qc4 Qe8 Kd6 Nh4 Rc1 a1B Qc6 Kg8 f7+ Kg7 f6+ Kg6 Rc3 d2 Rd3 Bh6 f8B Be3 f7 Bf2 Bc3 Qe2 Bg7 Qc8 Bf6 Qh8 Bb4 Nc8+ Kd7 Bb2 Bg3 Qe5 Qc2 Qeh5 Qb5 Ba1 Kc6 Bc3 Kb7 Ba1 Ne2 Be5 Qbc4 Bc7 Nd4 Rb5 Be2 Ngf3 Rg1 Ng5 Bf3 Ne6 Re1 Ng5 Re8 Q8h6 Rh8 Qg7 Rh7 Qh8 Qb1 Nc3 Ne4 Re5 Qc2 Nd5 Nc5
2BN1QK1/RnB2pb1/2r1PP2/2Qr3q/PB3Pr1/6rb/B2Rnq1k/1Nb5 b - - 0 1 illegal: No proof kernel
1K4Bb/2n1PrPb/k2r2Rp/qB3r2/2n1P1N1/BQb4P/R5q1/Q4NBr b - - 0 1 legal: proof: d4 b5 b4 c5 bxc5 g5 a4 e5 dxe5 Na6 axb5 Nb8 f4 gxf4 Kf2 d5 Kf3 Kd7 c4 Kc7 e4 Kb7 g4 f5 b6 a5 e6 a4 c6+ Ka6 g5 h6 h3 d4 e7 d3 c5 a3 g6 a2 c7 Rh7 c6 Bg7 b7 Bc3 Ba3 Nf6 Qb3 Nd5 Nd2 Nd7 b8B N7b6 Ba7 Rf7 Rh2 Be6 Rg2 Nc4 Rg3 Rb8 c8Q+ Rb7 Qc7 Rb6 Qe5 Nc7 Be2 Qd5 Nf1 d2 Qh8 d1R Qa8 Bh8 g7 Qa5 Rg6 Nb5 c7 Rbd6 Rb1 a1B Rb2 Bd5 Ra2 Bc3 c8B+ Bb7 Ng3 Nc7 Be6 Bd5 Nf1 Ra1 Ne3 Re1 Ng4 Rd1 Bd3 Ra1 Ne2 Rh1 Bd7 Be6 Ng3 Bd5 Nf1 Be6 Kg2 f3+ Kg3 f2 Kf3 Bd5 Be6 f4 Be2 Rf5 Bg8 Be6 Qd5 Bc8 Qdd1 Rf7 Qa1 Bf5 Kg2 f3+ Kg3 Bd4 Kf4 Bc3 Nd2 f1Q Bg1 Qg2 Nf1 Bf6 Rg5 Bh7 Rg6 f2 Bd3 Nd5+ Kf5 Rd8 Ke6 Bc3 Ng3 f1R Be2 Rc8 Kd7+ Rc6 Bd3 R1f2 Nf1 Rd6+ Kc8 R2f5 Kb8 Nc7 Bc2 Nd2 Qd5 Rh2 Ba4 Rh1 Qb3 Nc4 Bb5+
1qbrNbN1/QbRP3R/1b3r2/qP3B2/1PP1rn1K/1p3k2/8/QBn1BB2 b - - 0 1 illegal: No proof kernel
R1bk2r1/1RNP2rP/pP1r4/2BB1K2/nr1BP2b/q2b2Qn/1NB5/6Qq b - - 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 d5 c4 e5 fxe5 Qd7 cxd5 Qd8 Kf2 c5 Kg3 f5 Kf4 g6 e4 g3 d4 c4 b4 g2 h4 c3 e6 c2 h5 Rh6 e7 Nc6 d6 Na5 d7+ Kf7 e8B+ Ke7 b6 Rb8 b5 Nc4 d5 Nb2 b7 Nf6 Nf3 g1R Nfd2 Qa5 Bd3 Qa3 Nc4 Nh7 Bf7 Na4 Nc3 Ng5 Nb2 Kd8 Be3 c1Q Bc2 Be7 b6 Nh3+ Ke5 f4 Bd4 f3 Nb5 g5 Kf5 g4 Nc7 Rd6 h6 g3 h7 Re1 Rg1 f2 Qg4 Ra8 b8Q g2 Rf1 g1R Qg7 Rh1 Qg1 Re3 Rd1 f1B Rd2 Rg3 Rg2 Rb3 Rg7 Bd3 Be6 Bh4 Bg8 Re6 Bf7 Ke7 d8B+ Kd7 d6 Rb4 Bg5 Qf1+ Bf4 Kd8 Ra2 Qa1 Bfe3 Rh2 Bc5 Rg2 Bed4 Rh6+ d7 Rg3 Bd5 Rd6 Rf7 Rg7 Rf8+ Ke7 Rh8 Qe1 Ra1 a6 Rc1 Bb7 Qg8 Bc8 Qg3 Qh1 Qg1 Rg2 Qg3 Rh2 Bb1 Be2 Q3e1 Rg2 Ne8 Rg7 Qeg3 Bb7 Rf8 Rb3 Bb4 Bf1 Rc7 Bd3 Bbc5 Rb4 Rh8 Bc6 Ra7 Bb7 Nc7 Rc8 Bc2 Rd8 Nb5 Rb8 Rc8 Ra8 Rc7 Rag8 Ra8 Bc8 Rb7 Kd8 Nc7
B3k2n/Q2pB3/N1R4Q/2Bn2q1/nr1P1Pq1/qB5P/b1bqR1PK/N1r5 b - - 0 1 illegal: No proof kernel
r5BR/np6/1Q1BPk2/RPnP1q2/1N1b1R2/1b3qr1/PNRQ1n1b/K3n3 b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 gxh5 e5 cxd5 exf4 Qa4+ Ke7 Qxa5 Kd7 Qa7 Ke8 Kd1 Ke7 Kc2 c5 h4 f5 e4 g5 d4 c4 b4 c3 e5 f3 b5 f4 h6 f2 h7 g4 h5 f3 h6 g3 Nd2 g2 Kb1 Bg7 Qb6 Nd7 Rh2 Qf8 Ba3+ Nc5 Bc4 f1N Nh3 g1B Nf2 Ne3 Nd3 f2 Nb4 Be6 d6+ Kf7 d7 c2+ Kb2 c1N d8Q f1Q Rb1 Qd3 Ka1 Ng4 Rb3 Qe4 Rf3+ Qf5 Rf4 Ne7 Rhf2 Rg8 h8R Bf6 h7 N1d3 Bb3 Ne1 Nc4 Bd5 Nb2 Nc8 Rc2 Na7 Bc4 Rg7 Rg8 Be6 h8R Bh2 Qd5 Nf2 Qg2 Nh1 Qd2 Rg3 Rg6 Nf2 Rgh6 Kg7 Bd5 Bd7 Bg8 Be6 Rhh4 Bc4 e6 Bb3 d5 Kg6 Rfc4 Bd4 Rf4 Kf6 R4c3 Nce4 Rc8 Nc5 Rc6 Rd8 Rc8 Re8 Ra8 Nce4 Qd6 Kg6 Rac8 Q5f6 Ra8 Nc6 Rfh4 Qf3 Rf4 Qf5 Ra5 Ra8 Nd3 Na7 Qb6 Kf6 Bd6 Nc5 Nb4
1r6/PnQPq1p1/Kn5n/NN2q2q/kNR2P1N/2B2r2/R1n1bQPb/6B1 b - - 0 1 illegal: No proof kernel
Rr4Nb/PpK5/2B1R3/1k2r3/q2QB1qn/1qBnB1Qb/2P2PbP/1N3q2 b - - 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 g5 Ke3 d5 Kd4 Kd7 Ke5 Kc6 a4 d4 f6 d3 h6 g4 h7 g3 a5 b3 a6 g2 a7 b2 f7 d2 Bc4 Qd7 Be2 Na6 Bc4 Rb8 Nh3 g1Q Nf4 Qgg4 Nh5 Nh6 Rg1 Nf5 Nf6 Nb4 Ng8 Nh4 Bd5+ Kb5 Ra6 Bg7+ Rf6 e6 f8Q Qc6 Qf3 d1B Qg3 Bf3 Qd6 Bg2 Be3 Qa6 c6 Qa4 Qd8 Nd3+ Kd6 e5 c7 e4 Re6 Bd7 c8B Bf6 Bf4 e3 Kc7 e2 Be3 e1Q Be4 Bd4 Qf6 Bc3 Qd4 Qee2 Re1 Qf1 Re8 Be6 Rf8 Bf5 Be6 Re8 Ba2 Re5 Bad5 Be6 Ra8 Bd7 Ne7 Rb8 h8B Bc8 Ng8 Be6 Nd2 b1Q Bg7 Qbb3 Nb1 Qg6 Bf8 Bg4 Bb4 B4h3 Re2 Bb2 Bc3 Qg4 Be1 Qbc4+ Qc5+ Ka6 Bf4 Rf5 Bf3 Bf6 Bc3 Qcb3 Qd4 Bh8 Re6+ Kb5 Be3 Rh5 Bfe4 Re5 Bc6+
qrb5/Pp2bk1B/7R/1q2B1P1/1BN2PB1/2nr1Q2/1rnP2RK/3brQN1 b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 a4 Be6 g4 c5 f6 h5 g6 b3 f4 h4 Kf2 c4 Kg2 h3+ Kg3 c3 g5 c2 d6 h2 a5 b2 g7 Na6 Nh3 Nb4 Na3 b1Q Rg1 h1B a6 Bf3 Bb2 c1R a7 Nc2 Bd4 Qb5 Be2 Rb1 Rg2 Rb2 Nc4 Beg4 Ra4 e5 Kh2 e4 Qf1 e3 Ra6 Ne7 g8B Nd5 Bh7 Rg8 Rb6 Be7 f7+ Kf8 d7 Nc3 Bd1 e2 Be5 e1R Ng1 Qe8 Rh6 Rd8 Be2 Rh8 Bed3 Bd1 Bdf5 Ra8 d8Q Rg8 Qd5 Rd8 Qc5 Rd3 Qd5 Qa8 Qdf3 Rh8 Be4 Bd7 Bef5 Be6 Bg4 Bf5 Bb8 Kg7 Bd6 Rb8 Bc7 Bc8 Be5+ Bf6 f8B+ Kf7 Bfd6 Be7 Bb4
N1rNr1B1/1bQ3p1/3P1b2/Pq1r2PR/1N1PNKR1/4rQ2/2nk4/1n1B1r1r b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 d5 c4 h4 cxd5 Rh7 g4 Nh6 Bb2 Rh8 Be5 Ng8 Bg3 hxg3 Ke2 Kd7 Kf3 Kd6 h4 Kc5 d4+ Kb4 a4 b5 d6 e5 h5 c5 f6 c4 f7 g2 g5 e4+ Kf4 e3 h6 e2 a6 e1R a7 c3 h7 c2 a5 c1R Nh3 g1R Qc2 Re3 Qc7 Rc4 Na3 Kc3 Nc2 b4 Be2 b3 Bd1 b2 Nb4 Be7 f8N b1R Nd7 Rc1 Nb6 Bb7 f3 Nc6 Nf2 Bf6 Rh5 Rc8 a8B Kd2 Ne4+ Ke1 Ra2 Rc5 Rg2 Nge7 Rg4 Re8 h8N Rf1 Nf7 Qd7 Nd8 Nd5+ Kg3 Nc3 Kf4 Ba6 Bb7 Rd5 Na8 Bd3 Ba6 Nb1 Bc4 Rh1 Ba2 Ba6 Bab3 Bb7 Bc4 Rb5 Bg8 Rd5 Kg3 Re2 f4 Rf1 f5 Re3+ Bf3 Rh1 Kf4 Rf1 Nf2 Kd2 Bd1 Be7 f6 Rh1 f7 Bf6 Nbd3 Nb4 f8Q Nc2 Nb4 Qb5 Qff7 Be7 Qf5 Bf6 Qe4 Rf1 Qf3 Rh1 Be2 Rce1 Bd1 Ref1 Ne4+
1bn3Q1/1QPp1K1b/1NbB1Rn1/1P3B2/3R1r2/1BPNrPb1/2q1kbB1/5b2 b - - 0 1 illegal: No proof kernel
R2Bk3/qN2B3/br3Pb1/2b1p3/P2N1nnP/1BB4b/PQrn4/R2nK2Q b - - 0 1 legal: proof: g4 c5 e4 a5 d4 cxd4 b3 f5 exf5 h5 gxh5 a4 bxa4 Ra6 Na3 Ra7 Nb1 Ra8 h4 e5 c4 b5 f4 d5 h6 g5 c5 g4 f6 d3 h7 d2+ Ke2 g3 c6 b4 f5 b3 c7 g2 Nf3 g1N+ Kf2 b2 Bc4 d4 Qc2 d1B Be3 d3 Nc3 b1B Bb3 d2 Ne4 Be2 Nd4 d1N+ Ke1 Nc6 Qb2 Nb4 Nc5 Qe7 Nb7 Nd5 Bd2 Nf4 Bc3 Nh6 Rh3 Bg4 Rg3 Bh3 Rg8 Ng4 f7+ Kd7 Rg6 Rb8 Ra6 Qc5 Ra8 Qa7 f6 Ba3 f8B Bg6 Be7 Bc5 Bd8 Rg8 h8B Ke8 Bg7 Rf8 Na5 Ba6 c8Q Rb6 Qb7 Rf7 Bf8 Rc7 Bfe7 Rc8 Q7g2 Rcc6 Nb5 Rc8 Nb7 Nf3+ Kf1 Nd2+ Ke1 Bd4 Qe4 Rc4 Qh1 Bc5 Bd4 Rc1 Bc3 Rc2 Nd4
q1Q2bn1/1r1b1P1P/1r2B1r1/nBB4k/KBr2R2/3P2n1/N4P1p/N2nR2Q b - - 0 1 illegal: No proof kernel
1b2n3/B6R/P1NQNP1p/1Q3K2/qqB1nN1P/2P2rR1/Nrr1n3/2k2n1n b - - 0 1 illegal: No possible last move
q3r2n/4B1qP/1QQNR1pn/R1b1n3/P1b1KP2/b1k3P1/1n1B1Nn1/1B5B b - - 0 1 illegal: No proof kernel
1R6/1b6/1n4qN/1P1p3R/2nQ1KQ1/B1rrRPPB/2qPr1rn/rR1k3N b - - 0 1 legal: proof: b4 g5 e4 f5 exf5 b5 c4 Nf6 cxb5 Ba6 h4 Bg7 b6 Ng8 a3 Bc3 b5 Bb4 axb4 gxh4 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Ke3 Kf6 b7 Kg5 b6 d5 b5 a5 f6 c5 g3 h5 f7 e5 f8Q e4 Qe7+ Nf6 Bd3 h3 Ba3 c4 Qf8 h4 Bc5 c3 Ra4 c2 Qd6 c1R Nc3 h2 Nge2 Kg4 Qe1 h3 Qe5 Nc6 b8R Qe8 b7 Nd7 Rg1 h1R Bb4 h2 Ra3 a4 Qc7 Qg6 Bf8 Nb6 Rb3 a3 Qe5 a2 Be7 a1R Rb2 Re8 Rb1 R8a3 Qh8 Ne5 Nd1 Rcc3 Nd4 Rab3 Rg2 Rg1 Ba3 h1Q Nf5 Qhh7 Rh2 Rg2 Rh5 Qc7 Qg7 Re7 Qg1 Nec4+ Kd4 Kf3 Nh6 e3 Bf5 Ke2 Bh3 Re6 Ra8 Re5 b8R Bb7 Re8 Qc8 Rb8 Qcf5 Re6 Qc2 Re7 Kf3 Ree8 e2 Re6 e1N Re7 Ke2 f3 Nd3 Nf2 Re6 Qg8 Nde5 Nh1 Ng4 Qc8 Nh2 Re8 Re7 Qg4 Qc1 Qe3+ Kd1 Qd3 Re1 Re3 Ree2 Qde4 Nd6 Ke5 Ndc4+ Kf4 Rd3 Qd4 Rbc3 Rb4 Qc2 Rb1+
1Q2B1R1/3Rq1P1/k2PrP2/1N1Npn1K/b1b5/Q1Bnn3/1Rq1Pbq1/b4R2 b - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 g5 a4 a5 h3 b5 axb5 Ra6 h4 Rg6 Nh3 fxg4 Ng1 g3 Ra3 g4 Ra1 Rg5 hxg5 Be6 Qc2 Bd7 Qd1 Bc8 d4 Kd7 f4 e5 b4 h5 d6 c5 b6 Kc6 g6 Kb5 f5 g2 Kf2 g3+ Kf3 h4 Kg4 h3 d7 c4 f6 h2 d5 c3 g7 a4 b7 c2 Nc3+ Ka6 Bb2 c1N Ba3 Qe7 Kg5 Nd3 d8R Bd7 Qc1 Nc6 b8Q Nd4 Nb5 Nc2 Qb2 Nh6 Nh3 g1Q Rb1 g2 Kh5 Qgc5 Nf4 g1Q Bh3 Qg2 Rhf1 h1B Bg4 Bc6 Bd7 Ne3 Be8 Qc2 Rd7 Rg8 Qa2 Nhf5 Bb2 a3 Qa1 a2 Bc3 Nc4 Rb2 Nce3 Na7 Ba4 Nb5 Qe6 Qc1 Bc5 d6 a1B Nd5 Ba7 Rb1 Qe7 Qa3 Nc4 Rb3 Bf2 Rb2 Nce3 Bg6 Qf7 Nf4 Qcb3 Qc8+ Qb7 Nc7+ Kb6 b5 Bd5 Qd8 Qa8 Qe8 Kb7 b6 Qc2 Nb5+ Ka6 b7 Bc4 b8R Qg2 Nd5 Qe6 Qd8 Re8 Qc7 Re7 Rg8 Qf7 Qd8 Re6 Qb8 Qe7 Be8
1rn1B1RN/3Q3K/n1p4R/PN2PQ1r/1q3Rn1/nkP1r2n/1Rb1n2P/2B5 b - - 0 1 legal: proof: g4 h5 gxh5 e5 d4 a5 dxe5 Nh6 e6 Ke7 e4 g6 f4 Kf6 e7 Ke6 b4 axb4 e5 Ng4 Bd3 Kd5 Ba6+ Kc6 e6 Nf6 Bc4 Bg7 Be2 Ng8 Bf1 Be5 fxe5 Ra3 Kd2 Ra7 Ke1 Ra8 Ke2 Kb5 Kd3 Ka4 Ke4 f5+ Kf4 b5 Kg5 d5 a3 c6 c3+ b3 h6 d4 h7 b4 Bf4 d3 Qc1 d2 Qe1 d1N Qe3 b2 Qd3 b3 Ne2 Na6 Ng1 Qa5 e8Q Qb4 e7 Nf2 Qe3 Ng4 Bh3 Rb8 Qd3 Be6 Be3 f4 Qed7 f3 e8R f2 Bf4 f1N Ra2 Ng3 Qf5 Ne7 Ne2 Nc8 Bc1 Bg8 Nf4 Ne2 Rd1 Bc4 Rh1 Bd3 Rf1 Be4 Rg8 Bc2 Nd2 b1R Ne4 b2 Nd6 Ra1 Nb5 Kb3 a4 b1N a5 Na3 Rf3 Nh6 Kf6 g5 Kg7 g4 Ng6 g3 Rf4 g2 Bg4 g1N Bh5 Nh3 Rd8 Rf8 h8R Rb1 Kh7 Ng4 Rg8 Ra1 Nh8 Rf6 Be8 Rh6+ Kg7 Rh5 Kg6 Rg5+ Kh7 Rb1 Rg6 Rh5+ Rh6 Ra1 Bg6 Rb1 Rg8 Ra1 Be8 Rb1 Be3 Rd1 Bc1 Rd3 Ra1 Rg3 Ra2 Re3 Rb2+
7n/nN3PbQ/Q2q4/2PQbp1B/q1PR1Pb1/RNn5/1K2k3/2QbBn1r b - - 0 1 legal: proof: e4 c5 h4 f5 d4 a5 dxc5 g5 a4 gxh4 e5 b5 axb5 Ra7 Ne2 Ra6 Ng1 Rf6 exf6 Qb6 Bh6 Qc7 Bc1 Qd8 Kd2 Kf7 Kc3 Kg6 b4 e5 f4 d5 g4 h5 g5 e4 f7 d4+ Kb2 h3 c4 a4 b6 h4 b7 h2 b5 e3 b6 e2 Bd2 Kh5 g6 Kg4 g7 h3 Be3 a3+ Kb3 a2 Kb2 d3 Kc1 d2+ Kc2 Bd7 Bd4 Ba4+ Kb2 Qd6 Nf3 e1Q Na3 Nc6 b8Q Qe8 b7 Na7 Be2 Ne7 g8Q+ Bg7 Qd8 Ng6 Re1 h1B b8Q h2 Qc1 Bd1 Qb7 Qa4 Nb5 Kg3 Be5 Kf2 Nfd4 Bf3 Qa6 h1N Nb3 Bg4 Qh7 Ng3 Bc3 Nf1 Bf3 Be5 Re4 Bg7 Rd4 Ke1 Qhg8 Rh1 Qh7 Nh8 Bb4 Bh3 Bh5 Bg4 Qd7 Ke2 Ba5 Qe6 Nd6 Be5 Nb7 Qd6 Bd8 Bg7 Bh4 Be5 Rb1 Bg7 Be1 Be5 Kc3 a1B+ Rb2 Bg7 Qe6+ Be5 Qd5 Bg7 Qb6 Bc2 Qa6 Qa2 Kb4 d1N Re4+ Nde3 Rb1 Bae5 Rd4 Nd1 Rb2 Qa1 Ra2 Nc3 Ka3 Qb1 Nd2 Qb5 Nb3 Qa4+ Kb2 Bd1 Ra3
Nkr1n1r1/n5q1/P2p3R/2Q2P2/1bp1B3/1b6/1RPR1bPN/K1RQn1Bq b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 c5 d4 c4 Rh5 Qb6 Rh1 Qc5 dxc5 Ra7 Bf4 Ra4 Bc1 Ra8 Kd2 Kd8 f4 Kc7 a4 b5 f6 e5 a5 h5 c6 e4 g6 b3 Kc3 h4 Kb2 b4 a6 e3 f7 h3 f5 h2 g7 e2 Ra3 e1B Qg4 Nf6 Nc3 Ne8 Be3 Bb7 Kb1 b2 Na4 Bc5 Ka2 b1N f8Q b3+ Ka1 Nd2 Nb6 Nf3 Ra2 Bcb4 Qc5 Bg3 Bd3 b2+ Kb1 Bh4 g8R Bc8 Rg5 Rg8 Be4 Bg3 Qh5 Bh4 Rg3 d6 Qg4 Bd7 Bf2 Ne1 Nf3 Nd3 Rc1 h1Q Nh2 Ne1 Rd3 Bg3 Bg1 Bf2 Na4 Kc8 c7 Nc6 Rd2 Na7 Qd1 Bb5 Nc3 Ba4 Nd5 Rb8 Ra3 Ba5 Rh3 Bc3 Ka2 Ba5 Rh6 b1Q+ Ka3 Qb5 Ka2 Qd7 Ka1 Qg7+ Nc3 Kd7 c8R Ra8 Rc6 Rc8 Rb6 Kd8 Rb2 Bb4 Nb5 Bb3 Nc7 Kd7 Qe3 Kd8 Na8 Kd7 Nb6+ Kc7 Qc5+ Kb8 Na8
2Nqn3/1QP4p/1r1BRNP1/5b1Q/K1pNR1nr/b1B2PqN/7P/k4b1n b - - 0 1 illegal: No proof kernel
Qr1R1N2/1P3n2/1K2kpn1/BBQ1q2p/N3b2P/2P5/b1qPr1R1/1R2Rnb1 b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 g5 a4 d5 exd5 Bd7 axb5 Bc8 f4 gxf4 Kf2 Kd7 h4 e5 g4 h5 b6 a5 g5 f6 b7 f3 Ke3 e4 Kd4 f2 g6 e3 g7 a4 c3 e2 d6 e1Q c6+ Ke6 Kc5 a3 c7 a2 Ba3 Qe5+ Kb6 Nc6 d7 Nh6 g8R Rb8 Rg2 Ne7 Bb4 Ng6 Qa4 Nf7 Bb5 f1B Nh3 Bd3 Qa8 Be4 Re1 Bh6 Ba5 Re8 Na3 Be3+ Ka6 Bg1 Rab1 a1N Nc4 Nc2 Nb2 Qe7 d8R Ne3 Kb6 Qf5 Na4 Nf1+ Rd4 Bd7 c8Q Qe5 Qc7 Qb4 Qc8 Qb2 Qc5 Qc2 Rd5 Bc6 Rd8 Bcd5 Ng5+ Kf5 Ree2 Ba2 Nh7 Ke6 Ree1 Re7 Ka6 Rd7 Ka7 Rd3 Ka6 Re3 Kb6 Re2 Nf8+
1KB5/QpN3PB/1nr4R/8/2bq4/nbrQpkB1/PN1b2PP/2Rq2qB b - - 0 1 illegal: Other
1r2nB1R/bpP1Q1rN/2Pr2Q1/1b1b4/2NN1PNp/K4P1R/8/kq1Bnq2 b - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 f5 hxg5 a5 b4 axb4 e3 f4 exf4 Qa5 Bd2 Qb6 Bc1 Qd8 Kd2 Kf7 c4 Ke6 Kc2 h5 Kb2 d5 a4 b3 g4 d4 f3 h4 a5 d3 a6 d2 a7 Bd7 c6 Na6 g6 Qb6 g7 Rh7 c7 Rb8 a8Q Nb4 c5 Kd5 g5 Kd4 g6 e5 Qe2 d1R Qaa6 e4 Ka3 e3 Nd2 Kc3 Rh3 b2 Nc4 Nf6 g8N b1B g7 Be4 Nh6 Bb5 g8N Rd6 Ng4 Ne8 N8f6 Rg7 Nh7 Bd5 Qe1+ Kc2 Be2 Nd3 Ra2+ Kb1 Bd1 Be7 Ne2 Bf6 Rd2 Ka1 Nd4 e2 c6 Be7 Qg3 e1Q Qa4 Rgg6 Qb4 Rg7 Rg2 Qh1 Qbe1 Bf6 Qe7 Ne1 Bd2 Qf1 Bb4 Ba6 Bc5 Qb1 Re2 Bb5 Re6 Bg5 Rh6 Bf6 Qg2 Be5 Qc2 Bf6 Qg6 Be5 Ng5 Bf6 Rh8 Be5 Nh7 Bf6 Nf5 Bd4 Bb4 Ba7 Nd4 Rf6 Qe2 Re6 Bf8 Rd6 Qe7
2nnRq1q/P5k1/1PQrp3/1P1p1PB1/3bRb1N/5Qn1/b1KR1r2/N2R1B2 b - - 0 1 illegal: No proof kernel
2bQ1Q1b/1N1bnr2/4BN1Q/2B2P1P/2P1bKpr/8/bnQkPp2/1RRq4 b - - 0 1 illegal: No proof kernel
q2R4/r4nQP/Bn1ppK1N/3PP3/1bB2NP1/n1nR2k1/1Q2R1r1/4Rbn1 b - - 0 1 legal: proof: f4 b5 b4 c5 bxc5 h5 a4 g5 axb5 h4 Bb2 Bg7 Be5 Bh6 fxg5 Bg7 g4 Bf8 Bg3 hxg3 e4 f5 Ke2 Kf7 Ke3 Kg6 Kf4 a5 Ke5 g2 d4 a4 c4 a3 h4 e6 h5+ Kh7 c6 a2 b6 f4 g6+ Kh6 b7 Kg5 c5 f3 h6 f2 d5 Ra7 h7 Ne7 g7 Qb6 c7 Qa6 c6 Qc4 Qb3 Ng8 Rh2 Bb4 Ne2 g1N Ng3 Nh6 Nf5 Rf8 Qb2 Qa6 Bc4 f1N Re2 Ne3 Nc3 Nd1 Rc1 a1N Rb1 Ng8 Nh6 Nc2 Ra1 Kh4 Rc1 Nf6 g8Q Na3 Qg7 Ne8 Ra1 Nd6 Rb1 Nf7+ Kf6 d6 e5 Bd7 c8B Kh3 c7 Kg3 Ra1 Bb5 Rc1 Nc6 b8R Ne7 Rb1 Qa5 Ba6 Nc8 Rc1 Nb6 Rd8 Qa4 c8R Qa5 Na2 Nc3 Rce1 Qa4 Nc1 Qa5 Nd3 Qa4 Ba2 Bc4 Nf4 Qc6 Rf2 Bf1 Rfe2 Qa8 Rc4 Nh3 Rd4 Ng1 Rd7 Rc8 Rd8 Rc4 Rdd2 Rd4 Rdd1 Rd2 B2c4 Rc2 Re4 Rf2 R4e2 Rg2 Rd3+
3R2b1/n3QP1P/nN6/p1b1B1P1/nP1n1Br1/k2QBp1q/2Br2N1/4n1KR b - - 0 1 illegal: No proof kernel
6K1/3P2N1/nP3rn1/1Bqp3p/NnN4B/R4bQ1/1QrPNn1P/2b1kn1R b - - 0 1 legal: proof: e4 b5 b4 c5 bxc5 f5 a4 d5 axb5 Na6 g4 fxg4 e5 Qd6 exd6 Nb8 Ke2 Kd7 Kd3 Ke6 Kd4 Kf5 c4 Kf4 c6 a5 b6 h5 c7 g5 c5 e5+ Kd3 g3 f3 g2 c6 a4 Qb3 e4+ Kd4 g4 Qd1 a3 Bb2 a2 Bc3 e3 Qc1 e2 Qd1 e1N Qc2 g3 Bb5 Na6 Qb2 Bg4 c8Q Rh6 d7 Ba3 c7 Rf6 Qb8 Ne7 Qg8 Ra7 c8N Ng6 Nd6 Nd3 Nc4 Rc7 Qb8 Ndb4 Ne2+ Kg5 Qg8 g1N f4+ Kh4 f5 g2 Qg7 Bf3 Qg8 Kg4 Qb8 Nf4 Ke5 Ngh3 Bd4 g1N Nbc3 Nf2 Na4 Kh3 Bc5 Kg2 Be7 Rcc6 Nc1 Kf1 Ne2+ Nd1 Qg8 Kf2 Qg7 Ne3 Qg5 Nf1 Qg7 Rfd6 f6 Ngh3 f7 Rf6 f8N Rc7 Ne6 Ng6+ Kd6 Rc8 Ne5 Rc1 Nc4 Ke1 Bd8 Nf2 Qg8 Rf8 Ng7 Rf7 Ke6 Rf8 Rb1 a1Q Bh4 Qa2 Ra1 Rf4 Qd4 Qc2 Qb2 Qc3 Ra2 Rc2 Qb8 Rf8 Qg3 Qd4 Nd6 Qc5 Nc4 Rc8 Kf7 Rc6 Kg8 Rf6 Qbe5 Bb2 Ra3 Bc1 Qb2
1R2r3/B1nP4/P4kPr/q1B1B1b1/1P1Nr3/rNnpRb1r/Qp6/3Q1K1B b - - 0 1 illegal: No proof kernel
1qRb3b/1np2b1b/2PQ1P1N/bR5R/4Br1Q/NPkPRn2/4rp2/K5B1 b - - 0 1 illegal: No proof kernel
1Q1bNnN1/P3R2Q/1Bk2Q2/4n1qQ/1PP2R2/1B2n1Pr/prpK4/1b1nn3 b - - 0 1 illegal: No proof kernel
K1n3Rk/b2rNq1b/4PPp1/nr2Rb1R/Q2pR3/1P5N/2B1P2B/2rr3Q b - - 0 1 illegal: No proof kernel
q2RR3/7b/n2PK3/1kNQ1NR1/1rprP1n1/n1P1QP2/p1Rbn2B/3rB3 b - - 0 1 illegal: No proof kernel
1rN1n2b/R2Kb1b1/1p3Q1N/1PR1QB2/B4P2/3Pq2B/kPnn2p1/4rbB1 b - - 0 1 illegal: No proof kernel
8/2BNK2P/1PNr1PB1/2R2r1Q/1np2Pbn/1k2pNnr/R1r1Q1N1/2q1b3 b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 a4 d5 axb5 Nc6 cxd5 Nb8 g4 hxg4 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 h4 a5 h5 g5 h6 c4 f6 g3 d6 a4 d5 g4 b6 a3 b7 g2 d7 a2 Ke6 g3 d6 Nc6 b8N Ra5 Rh5 Rf5 Qe2 Kb3 Nh3 g1R Nf4 Nb4 Ng2 Qc7 Kf7 e5 Bf4 Ne7 d8Q e4 d7 Ng6 Qe8 Nh4 f3 Qc5 d8N Qe3 Ndc6 Qc1 Bc7 e3 f4 Rh1 h7 Rh3 Rg5 Bd6 Qe5 Rd8 Nd7 Bc5 Qd5 Bb6 Ke7 Ba5 Nf8 Rd6 Nd7 Nc2 Qf7 Be1 Qfh5 Nb4 Nd2+ Kc2 Rb1 a1R b3 Ra6 Ra1 Ra2 Nf3+ Kc3 Bd8 Rc2 Ra2 Nd3 b4 Kb3 b5 Nb4 b6 Rc5 Nde5 Bg4 Nd7 Rf5 Bc7 Bd2 Nge1 g2 Ra8 g1N Ng2 Be1 Ra2 Rb5 Rc5 Ra5 Qd1 Ne2 Qd2 Ng3 Bd3 Rb5 Bg6 Ra5 Qe2 Rb5 Rd5 Rc5 Rd1 Rg5 Rd5 Rf5 Rc5
3rbQ1B/3BpQb1/RR4q1/2nr3Q/pnk1b1P1/4b2P/1rP1NNPQ/K7 b - - 0 1 illegal: No proof kernel
1nK5/2bPB1r1/4n2N/3B2R1/1R1k1p2/P2PRr1n/qQp1PrbN/r1RQ4 b - - 0 1 illegal: No possible last move
3R1nbR/1BPQBP2/4P1pK/rq2B3/N1n2nN1/Qr1pn2B/1P4r1/2b2k2 b - - 0 1 illegal: No proof kernel
7r/bPpPq2Q/1bRR3r/Bn2p1P1/2Q4N/5Rr1/b2RBP1k/N1Kbn3 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 gxh4 a4 f5 axb5 Be6 exf5 Bc8 b4 Kf7 d4 Kf6 Kd2 Kg5 g4 h5 f6 e5 f7 a5 d6 h3 b6 Kh4 b7 h2 g5 a4 b5 a3 d5 a2 d7 Na6 b8Q Nh6 b6 Nf5 d6 Qe7 d8R Nc5 b7 Nd3 Rd7 Ra3 Qf3 Nd4 Qd5 Ne1 Qc4 Rg3 Na3 Kg4 Qa8 h4 Nf3 h3 Nh4 Rh6 Rd8 Be6 Nc2 Rh8 Rg1 h1B Be2+ Bf3 Qa3 h2 Qad3 Kh3 Qh7 h1R Ba3 Bd7 Bb4 Kh2 Rc1 a1B Ba5 Nb5 Rd1 Bc3+ Kc1 Bd4 Rd2 Ba7 Na1 Bf5 Rd7 Bb1 Rd8 Ba2 Rf1 Bg7 f8R Bh6 Rf6 Bf8 d7 Bg4 Rc6 Bb6 Bd3 Bd1 Be2 Qg7 Re8 Bfc5 Rf8 Qe7 Rf4 Ba7 Rf3 Bcb6 Rg1 Rh3 Rg4 Rg1 Rgd4 Rgg3 Ng6 Rh5 Rdd6 Rh6 Nh4
6Nq/Pr2N1Q1/KPb2Nr1/3RnPN1/1r2n1p1/4rR1Q/1Bnp3P/kB4b1 b - - 0 1 illegal: No proof kernel
1R1R1QBB/P3qpNb/1K1P3n/2r1Nn2/b2k3B/6P1/1p1P2Bn/1Qb2nr1 b - - 0 1 illegal: No proof kernel
1K6/Pp4B1/Nprn1n1N/1P4bQ/3Q2Pb/QRq3k1/rBb1P1Q1/b4r1R b - - 0 1 illegal: Other
1b1R4/2r2n1B/n2Qqb1r/8/2k1bQRq/BB2P2p/B2PNPPp/2b2K1N b - - 0 1 illegal: No possible last move, all moves rejected
2Q4N/1n1bk2p/K2R1P2/1r1Q2PB/1Bpq2P1/NqPb1Q2/2r1n1qQ/3Rq3 b - - 0 1 legal: proof: e4 b5 h4 f5 a4 fxe4 axb5 g5 hxg5 c5 d4 c4 Rh5 Bg7 Rh1 Be5 Rh5 Bd6 Rh1 Bc5 dxc5 Kf8 Nh3 Kf7 Ng1 Ke8 Kd2 d5 Kc3 a5 f4 e5 b4 a4 g4 e3 c6 a3 b6 e4 c7 a2 f5 e2 b5 e1Q+ Bd2 d4+ Kb4 e3 b7 e2 b6 d3 Kb5 Qd4 Na3 Na6 b8Q Ne7 b7 Qg3 Rh6 e1Q Nf3 Qg2 Ne5 Nc5 Nf7 Ng6 Bb4 d2 c3 Nf4 Qf3 d1B Rd6 Bc2 Rd1 a1Q Qd5 Ra7 Qa8 Qb2 b8Q Ke7 Be2 Ra6 Bf3 Nb7 Be4 Be6 c8Q Bd3 Bf3 Rd8 Nh8 Ne2 Be4 Rc6 Bf3 Rc5+ Ka6 Bd7 Be4 Bb1 Bc2 Re8 Ba4 Qb3 Bb5 Bd3 Qf3 Na5 Qad5 Nb7 Bc6 Rb5 Qbc7 Rd8 Q7b8 Be6 Be8 Bd7 Bh5 Rf8 Qa7 Rf6 Qb6 Re6 Qbc6 Re3 Qg3 Rf3 Qh2 Rf2 Qf3 Nc1 Qc5 Rc2 Qcd5 Ne2 f6+
B4B2/1N2P2p/pR1PPrbr/P2n3r/1QrB3N/1qB1n1K1/k2Rb3/q5Q1 b - - 0 1 illegal: No proof kernel
1N1q1R2/1RPn1Pp1/2n3Q1/nBrb2pQ/1qP2N2/n1r5/1BQ2P2/1QK1b1k1 b - - 0 1 legal: proof: e4 b5 d4 f5 exf5 c5 dxc5 h6 a4 Nf6 axb5 Ng8 g4 Ba6 g5 hxg5 Bc4 Bb7 Bf1 Bc8 Kd2 Kf7 h4 Kf6 c4 Ke5 b4 Kf4 c6 a5 b6 d5 f6 e5 h5 a4 f7 d4 c7 d3 h6 e4 b7 a3 b5 a2 b6 Nd7 b8Q Ra5 b7 Ne7 h7 Rc5 Qc2 Nc6 Ne2+ Kf3 Bb2 e3+ Kc1 Be7 Nf4 e2 Qa7 e1N b8Q Bb7 Nc3 Bd6 Rb1 a1N Qb6 d2+ Kd1 Ba8 Bh3 Nb3 Nb5 Nba5 Na7 Re8 h8Q Re3 Qh6 Rc3 Qhg6 Qf8 Be6 Bb7 Rh8 Qe7 Rf8 Be5 Nd3 Kg2 Qh5 Kg1 Nf4 Qd8 Qa6 Ba8 Qbb3 Qb8 Bh3 Qb4 Qb6 Bd6 Qcg6 Nc2 Qb8 Nde5 Bd7 Na3 Qbc2 Be7 Be8 Nd7 Qb7 Nd8 Qbe4 Bd5 Nc6 Bf6 Nb8 Ndc6 Qed3 Be5 Ke2+ d1Q+ Ke3 Qf1 Kd2 Bd4 Qdf5 Bf6 Qfd3 Qd1+ Ke3 Nb6 Qce2 Bh1 Qhf3 Ne7 Bc1 Rc2 Rh8 Bc3 Rf8 Qb2 Qfh5 Be1 Qb3 Qd8 Qed3 Rd2 Qdc2 Rd3+ Ke2 Rg3 Qb4 Bd5 Kd1 Rc3 Qbb3 Nd7 Qa2 Qb5 Qa1 Qa4 Rb7 Ne5 Qb1 Qb4 Bb5 Nd7 Bb2 Nec6 Kc1
1nN5/PB1b3q/1rN2Q2/pR1b1BKn/k1P1NQp1/r5P1/P1Nr2r1/R3q3 b - - 0 1 illegal: No extended proof kernel
1nB5/bK2N1Nb/QQp1qBRk/P3nbpN/R5P1/1PNn1P2/2q1r1q1/8 b - - 0 1 illegal: No possible last move
3b2QK/2R2PP1/2p1p2n/q1P1nqRb/1N3PB1/RN4k1/1b1R1Bn1/2qr3Q b - - 0 1 legal: proof: g4 d5 e4 dxe4 a4 b5 axb5 f5 h3 g5 gxf5 a5 h4 g4 Bd3 Ra6 Be2 Rg6 Bf1 Rg5 hxg5 Bb7 Bc4 Ba6 Bf1 Bc8 Ke2 Kf7 Ke3 h5 Kf4 c6 Ke5 a4 b4 g3 c4 e6 f4 g2 d4 e3 b6 a3 d5 a2 f6 Kg6 d6 h4 f7 e2 b7 Kh5 c5 Kg4 d7 h3 b5 h2 b6 Ne7 Kf6 Kh4 g6 e1Q Nd2 Qe3 Ngf3+ Kg3 Nb3 g1N Bh3 Qd3 Ne1 Nf3 Be3 Nh4 Rg1+ Ng2 Bg4 h1Q Nc2 Bh6 g7 Nf5+ Kg6 Bg5 Nb4 Qc2 Qd5 Nh6+ Qe4 Qc7 d8R Nd7 b8Q Ba6 b7 Be2 Qa8 Rh7 b8R Qa5 Rbc8 Qc1 Qb1 Qh3 Rc7 Rh8 Qb8 Rg8 Kh7 Ne5 Rd4 Rd8 Rd2 Rd5 Qg8 Bd8 Kh8 Bd1 Bf5 Bh5 Bg4 Rd6 Re2 Rd1 Bf2+ Kh2 Qbh7 Qd3 Rd2 Qf5 Rb1 a1B Rbb2 Qf6 Ra2 Qf5 Ra3 Bb2 Bh3 Ne1 Rg5 Ng2 Bg4 Qf6 Be3 Kg3 Qe4 Qf5 Bd4 Ne3 Qh1 Ng2 Bf2+
1n3qr1/3r1B2/r2P4/QpPPN3/qB2Nk2/2B1n1B1/1P1qQKp1/R1nb3R b - - 0 1 illegal: No proof kernel
3K1n2/7Q/5BRq/k3Ppnr/3nPP2/n1N3Qq/b1Bp1b1P/2NqQQ1R b - - 0 1 legal: proof: b4 b5 c4 a5 cxb5 e5 d4 h5 dxe5 Be7 a4 Kf8 g4 hxg4 b6 Nh6 b7 Ke8 b5 Ng8 Qd2 Bf8 Qd5 Ra6 Qd1 Rc6 b6 Rc5 Nc3 Rb5 axb5 a4 Nb1 Rh4 Bg5 Rh3 Bc1 Rh8 Kd2 c5 Kd3 g5 Kc4 f5 Kd5 a3 e4 g3 f3 c4 Ra2 g2 Rf2 c3 Bd3 c2 Be3 c1Q Nc3 g4 Re2 a2 Rf2 a1N Bd4 g3 Nce2 Nc2 Be3 Rh5 Rf1 Qh4 Qd2 Kd8 Qa5 Nc6 b8Q N6d4 Qb7 Na3 Qe1 Ne7+ Kd6 Qh3 Bg5 Qf4 Bf6 Qh6 Qa6 Bb7 f4 Bd5 Qa7 Ba2 Nc3 Kc8 Nge2 g1N Bb1 g2 Bc2 Ngf3 Nc1 g1Q b7+ Kd8 b6 Ng5 Qa6 Qgg4 Rfg1 Qd1 Kc5 d5 b8Q+ Kd7 b7 Ng6+ Kb6 Bd6 Qba7 Nf8 Qaf1 Bc5+ Ka5 Kc6 b8Q Bb6+ Ka6 Kc5 Qh7 Kb4 Kb7 Ka5 Kc8 Ndb5 Qd2 d4 Qd6 d3 Qde2 d2 Qdd3 Bf2 Qee1 Nge6 Rg6 Nbd4 Qg3 Ng5 Kd8
B1qB1n2/2r3p1/nq2q1N1/2p1RbP1/6NQ/2KBR2Q/2nPPP2/1B2rkq1 b - - 0 1 illegal: No proof kernel
r2brb2/3b3Q/Bqkn1pBP/Q3P1N1/5P2/K1bP2B1/B3p1Rr/3NRq2 b - - 0 1 illegal: No proof kernel
2qB1Q2/rN3Np1/2q1P2R/n5n1/qb3QPK/1q1R1B2/1pr1PkrP/1R1R4 b - - 0 1 illegal: No proof kernel
1Q1R4/q1PN2P1/Qp1R3K/rbn1B1n1/3pk3/bPP1b1B1/2q1B3/1qBN2q1 b - - 0 1 legal: proof: e4 g5 d4 f5 exf5 c5 dxc5 Bg7 Nc3 Bh6 Nb1 Bf8 a4 b6 h4 gxh4 a5 Nc6 a6 Rb8 Ra4 Rb7 axb7 a5 Ra1 Nb8 Kd2 Kf7 Ke3 Kf6 Kf4 h5 g4 d5 f3 e5+ Ke3 e4 Kf4 e3 b3 d4 c6 h3 c7 e2 Nc3 e1B Be2 a4 Qd3 a3 Nd1 h4 Qa6 Nd7 b8Q h2 c3 h3 Ra2 Nc5 Ra1 a2 g5+ Kg7 g6 Kf6 g7 Bd7 Kg4 Ke5 f4+ Ke4 Nf3 Qc8 Kg5 Bd2 f6 Nh6 f7 Be3 Ne5 Bb5 Nd7 Qe8 Re1 h1Q Kh5 h2 f5 Qe6 f6 Qg1 Rf1 Bd6 f8B Qc4 f7 Qd3 Rf5 Qc2 Rd5 Rh7 Be7 h1Q+ Bh4 Rh8 f8B Be7 Rd6 Nf7+ Rh6 Ng5 Kg6 Bd6 Bg3 Rg8 Be7 Rf8 Bd8 Rf5 Bf6 Bf8 Bfe5 Be7 Rb1 a1Q Rh8 Qaa2 Ra1 Qab1 Rd8 Qhg2 Kh6 Qca2 Qac8 Qa7 Qa6 Bd6 Ra5 Q2h2+ Bh5 Qhc2 Be2 Nb7 Ra4 Ba3 Rb4 Nc5 Rc4 Na4 Rc6 Nc5 Rd6 Nce6 Kh5 Ba4 Bef4 Ra5 Kg6 Nc5 Kh6 Bb5 Be5
QR3RQN/1bR5/3bbrb1/3b1rP1/1r1N1R1K/1n4pP/2P1p1Pn/3kBB2 b - - 0 1 illegal: No proof kernel
Q2b1K2/1pPbR1R1/1Q5r/2Q2p1b/2P2bP1/NP2B1bQ/1NB4k/1nq2nb1 b - - 0 1 illegal: No possible last move, all moves rejected
2RQ1B2/2r1pPp1/nn2bBPb/r5NQ/2Q2R1P/N1k2b1b/b3P1Q1/b4K2 b - - 0 2 illegal: No possible last move
N1N4K/1B2N1r1/2n2rPb/Rqkn2Q1/4ppn1/P3N1bp/1B2P1Pr/2R2Q2 b - - 0 1 illegal: No proof kernel forced: bxLB
1k2Bn2/1r5Q/Pbp1R1N1/Q2N4/1Pqn1pr1/pnR2P1R/2P1r1R1/bK5B b - - 0 1 illegal: No proof kernel
8/3r2bb/p1Pp1n1P/K3B1N1/B5Qp/kr1b1NR1/1n1PP3/BR1BqQn1 b - - 0 1 illegal: No proof kernel
1kq3R1/B4P1r/1r1Ppb2/3p1pB1/2bPbR2/1n2RP2/Q4n1N/N3KnQR b - - 0 1 illegal: No possible last move
1nB2RQ1/kB1bQP1Q/1p3nqb/2r1P3/2Q1p2r/bp5P/1P1NN2r/2K1R3 b - - 0 1 illegal: No proof kernel
B4BN1/3Pb1Qr/2nBPp2/NPp3b1/5rk1/RP3b1q/1Qp1BnR1/2K3n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 Bb4 axb5 Bf8 c4 dxc4 h4 Kd7 e4 Ke6 d4 a5 Kd2 c5 b3 g5 h6 g4 h7 a4 d5+ Ke7 h5 f6 d6+ Ke6 h6 a3 Qe2 g3 Rh2 g2 Nh3 g1N Nf4+ Kf7 e6+ Ke8 e7 Kf7 e5 a2 Na3 Bf5 Nd5 Kg6 e8B+ Kg5 e6 Qe7 Bc6 Ra4 d7 Be4 Ba8 c3+ Kd1+ Kf5 Nc4 Bf3 Bf4 Nc6 Bd6 Kg4 Na5 Rf4 Kc1 c2 Qe5 Qe8 Be2 Qh5 Qb2 Qh3 Rf2 Nge7 Rh2 Nf5 Ne7 Ne3 Ng8 Nd1 Ne7 Rg8 h8Q Nf2 h7 Rg7 Ng8 Rf7 Bc4 Bh6 Qg7+ Bg5 h8B Re7 Be2 Rf7 Qh6 Rh7 Qf8 Qh5 Bg7 Qh3 Rb1 a1B Qf7 Qg3 Bgf8 Qh4 Qg7 Qh3 Qa2 Be5 Qb2 Nb4 Ra1 Nc6 Bb8 Bd6 Ra3 Be7 Be5 Qg2 Bd6 Qh3 Rg2+
3n4/8/1Rb1n1Pk/1Qp4q/PNpr1P1B/1N1p1Qqr/K2Q2PR/1Q1B1qb1 b - - 0 1 illegal: No proof kernel
1nr2R1Q/2QNR2B/p7/N1P1n1Q1/K1p1Q1p1/2Pqrq2/bBkP2P1/3nb3 b - - 0 1 illegal: No proof kernel
R5N1/1k1nbr1P/1B3pB1/r3PP2/3N1PQp/qnRb1rRR/6p1/3KQ1q1 b - - 0 1 illegal: No proof kernel
3N4/nR2qP1K/1QBn1Q1b/2R2Q1P/2rp1Q1N/pqPr4/Pp1k1B2/2b2b2 b - - 0 1 legal: proof: e4 c5 d4 e5 dxe5 f5 exf5 h5 g4 hxg4 b4 Bd6 bxc5 Bf8 Kd2 Ke7 Kd3 d5 h4 b5 f4 a5 e6 Kf6 c3 g5 e7 b4 e8Q d4 Ke4 b3 c6 a4 c7 g3 Qc6+ Bd6 Nf3 g2 Qb6 g1Q Qd2 g4 Na3 g3 Rb1 g2 Bb5 Ne7 Nc2 a3 Bc6 Ba6 c8Q Bf1 Nb4 Ra4 h5 Rg8 Nh4 Rg3 Qe3 Qf2 Rg1 Qb2 Qf3 Qd7 Be3 Bc5 Qca6 Nc8 Bf2 Bf8 Qg4 Rd3 Qh3 Kf7 f6 Qe7+ Kf5 Nd6+ Kg5 Qc2 f5 Qd1 Qh2 Qc2 Qf4 b2 Re1 Bg7 Re5 Qb3 Rc5 Bf8 Nd5 Rc4 Nc7 Bg7 Ne6 Bf8 Ba4 Nc6 Nd8+ Ke8 Kg6 Kd7 f7 Bh6 Qbb5 Kc7 f8Q Kd7 f6 Kc7 Rh1 g1B Qab6+ Kd7 f7 Bh2 Qf6 B2f4 Kh7 Bc1 Q8h8 Qe6 Qf4 Qe7 Nb7 Ke6 Rg1 Qc2 Rg8 Na7 Rb8 Qd1 Q5a5 Qb3 Bc6 Nf5 Qhd8 Kf6 Qh2 Kg5 Qh8 Kg4 Nd8 Nd6 Qf6 Nb7 Qhc7 Nd6 Nf5 Kf4 Rb7 Qe4 Qab5 Kf3 Q5a5 Ke2 Qb8 Qe7 Nh4 Ne8 Qbf4 Nd6 Qc7 Kd1 Qab6 Ke2 Q4f5 Kd2 Qb8 Ndb5 Qg3 Nd6 Qgf4+
1k1bnN2/2N2Ppb/QpNRP1n1/rprPQ1nP/2R5/3B4/q4B2/2qN3K b - - 0 1 illegal: No proof kernel
4N2B/n1q1P3/r4k1K/p2P3B/3n1p1R/1PQbrR2/pP3Nn1/1N1NQ1bq b - - 0 1 illegal: No proof kernel
8/4PQpP/p6b/K1p2NN1/1BRb1P2/nRP1bq2/QrR3rn/1R1q1B1k b - - 0 1 legal: proof: e4 b5 a4 h5 axb5 e5 d3 f5 g3 Bb7 g4 hxg4 exf5 e4 Ne2 e3 Ng1 Be4 dxe4 Bc5 Na3 Bd6 Nb1 Bf8 h4 Ke7 f4 Kf6 b4 d5 h5 d4 h6 a6 h7 c6 b6 d3 b5 e2 Kd2 g3 Kc3 e1B+ Nd2 g2 b7 Bc5 b6 Nd7 b8R Bh4 b7 Ne5 Nb3 d2 Ba3 Bd4+ Kb4 Qd5 c3 c5+ Ka5 Nh6 Nf3 g1B Ng5 Nhg4 Qc2 d1Q Rc1 Rd8 Qa2 Nh2 Bb4 Bge3 Rc2 Rd6 Rd8 Rc8 b8R Nc4+ Ka4 Na3 Ka5 Qf3 Rb6 Rb8 e5+ Ke7 e6 Kf6 e7 Re6 Nf7 Bg5 Rb5 Bh6 Ng5 Qd1 Rg1 Q5f3 Rd7 Be5 Rd4 Rd6 Re4 Rd2 Rc4 Rg2 Nd4 Rb6 Ne2 B5d4 Ng3 Rb8 N5e4+ Kf7 f6 Ke6 f7 Kd5 Ng5 Rb6 Nf5 Rb7 Ne6 Ke4 f8Q Qg3 Qf6 Kf3 Qf7 Qg4 Nh4+ Kg3 Ng5 Qgf3 Be2 Rb8 Nf5+ Kf2 Re1 Rb6 Bf1+ Kg1 Nh3+ Kh1 Ng5 Qd3 Rb1 Qdd1 Rcc1 Rb2 Rc2 Rg6 Ne6 Rg4 Ng5 Rg2 Rb7 Nb5 Ba3 Na7 Rb3 Nb5 Bb4 Na3 Rd2 Rc2 Re2 Rb2 Rc2
K2bQN2/B2PP2p/Rpn2q2/1kR2b2/bP6/Q1pBr1q1/2PR1NRr/3n4 b - - 0 1 legal: proof: h4 g5 hxg5 e5 f4 d5 a4 b6 a5 Qf6 a6 Qc6 fxe5 Qb7 e4 dxe4 axb7 Kd7 Rh3 Ke7 Rh1 Ke8 Ke2 Kd7 Ke3 Kc6 Kd4 f5 g4 a5 b4 f4 g6 f3 g5 a4 e6 f2 e7 e3 g7 a3 g6 a2 Na3 e2 Nh3 e1Q Nc4 Ra5 Qf3+ Kb5 Kd5 c5 d4 Ka6 Qa3 Bg4 Bf4 Bd7 Bd3 f1B Nf2 Nh6 g8Q Kb5 g7 Nf5 Ne5+ c4 Rh2 Bh3 Ng6 Nc6 b8R Ne3+ Kd6 Bdf5 Kc7 Nd1 Kb7 Bd7 d5 Bhf5 Qf7 Rg8 d6 Qg1 Rc8 Qg3 Qe8 Ra4 Rb1 a1Q Rb2 Ra5 Ra2 Qf6 Be5 Rh8 g8R Bh6 Nf8 Bf4 Rg4 Rg8 Rg2 Rg6 Rd8 Rh6 Ra1 Rh2 Ra2 Bh6 Rd4 Bf4 Rc8 Bde6 d7 Bd5 Bb8 Bc7 Ra1 Bd8 Ba7 Bf3 Ka8 B3e4 Qb2 Ra3 Ra2 Rc3 Ra6 Bd5 Qa3 Bf3 Be4 Re3 Rd2 c3 Rc7 Be2 Rc8 Bc4 Rc7 Bb3 Rc8 Na5 Rc4 Ba4 Bd3 Nc6 Rc5#
2B3n1/2P1r2r/bQqbNB1k/N1pQ2RR/6rP/2R1pKP1/1qnp1P2/4R3 b - - 0 1 illegal: No possible last move
2b1N1q1/bp1N2n1/3rk1PP/RB1Q1R1r/8/nP1p1N1r/Q2P1p2/N2K1B1q b - - 0 1 illegal: No proof kernel
7q/qpQ1nPpR/2bn2QQ/7P/2r2B2/2P1Q1pN/2Bb1bP1/kRr3NK b - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 h5 dxc5 f5 e4 Qb6 exf5 Qd8 Qg4 hxg4 a4 Kf7 h4 Kf6 f4 e5 Kf2 d5 c6 d4 a6 e4 c7 d3 a5 d2 c3 d1Q a7 Qc2+ Nd2 Qcd3 a6 Nh6 Rb1 Rg8 Ndf3 Bd7 c8Q Bc6 Qc7 Nf7 Ng5 Nd6 N5h3 e3+ Kg3 e2+ Kh2 e1B Be3 Qc4 Bd3 Qb3 Bc2 Qa2 Bd2 Be7 Be3 Kf7 f6 Ke6 f7 Kd5 f8Q Kc4 f5 Bf2 Bf4 Bg5 Qf6 Re8 Qg6 Re4 f6 Qh8 f7 Bh6 Be5 Bd2 Bf4 Re1 Qh6 Rc1 Qg6 Nd7 Qh6 Rc8 a8Q Nf6 Qa7 Ng8 Qe3 Ne7 a7 Qa5 a8Q Qc5 Qaa5 Qa7 Qab6 Qa1 Ne2 Qa7 Rg1 g3+ Kh1 Rd1 Re1 Rc1 Neg1 Re8 h5 Nb5 Qee6+ Nd5 Qf5 Nd6 Qhf6 Re4 Qh7 Rd4 Re6 Ne7 Qff5 Re4 Qe3 Rd4 Rh6 Re4 Qfg6 Rd4 Bf5 Re4 Ra1 Kb3 Rb1+ Ka2 Qb8 Qb6 Qc7 Rc4 Bc2 Qa5 Qg5 Qa7 Qhg6 Rd4 Rh7 Rc4 Rb3 Ka1 Q5h6 Qc8 Rb6 Qh8 Rb1+
2b5/nNB1KR2/1N3P1r/N2bPP2/1P5k/p2pRN1b/nrBQ2pQ/bq6 b - - 0 1 illegal: No proof kernel
N3b2N/b2pr2R/B4B1q/1P1K1nN1/2nPP1P1/1Q1r1p1p/kr4Q1/rN1R4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 b4 e5 bxc5 exf4 a4 Qa5 axb5 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 d4 f5+ Kd3 Kd5 g4 a5 c3 h4 c6 f3 g6 h3 g7 f4 c7 a4 Bg2 a3 Qc2 Bb7 c8N a2 Nd6 Qg5 Nf7 Ne7 g8Q Rh7 Nh8+ Rf7 Ba3 Nf5 Be7 Nc6 Bf6 Na5 e3 Bc5 c4+ Ke6 Qf2 Ba7 c5 Kd5 c6 Qh6 c7 Nc4 c8N Bc6 Qc2 Bb7 Qb3 Bc6 Qg5 Re7 Qh4 Bb7 Qg3 Bc6 Rh2 Bb7 Bh1 Bc6 Rg2 f2 Nf3 f1R Re2 Rf2 Ng5+ Rg2 Rf2 Bb7 Rf3 Rb2 Qg2 Bc6 Nd2 Bb7 Rd1 a1R Kc3 Bc5 Nb1 R8a3 Kd3 Ba7 Nb6+ Kd6 Nc3 Bd5 Nb1 Bf7 Kc3 Be8 Kb4 Kc7 Kc5 Kb7 Kd5 Kc7 Qb4 Rd3 Qb3 Kb7 Rf2 Kc7 Na8+ Kb7 Nc7 Kb6 Na8+ Ka5 Rc2 Nd2 Rc8 Nc4 Rb8 Bh5 Rg8 Bg6 Rg7 Be8 Qa2+ Kb4 Rh7 Rbb3 Qac2 Rb2 Qb3+ Ka5 Qe2 Ra3 Bf3 Ra1 Qg2 Bb8 Be4 f3 Kc5 Ba7+ Nb6 Qh5 Bb7 Qh4 Kd5 Qh6 Qa2+ Kb4 e4 Ra3 Na8 Rd3 Qa5+ Kb3 Qc3+ Ka2 Ba6 Rf7 Qcc2 Re7 Qb3+
rbn5/2p1Qb2/2N2Pb1/RPp1K1Q1/1bqpRP2/P1R1BR2/k4rN1/1n3B2 b - - 0 1 illegal: No proof kernel
4R2n/2p1Rb2/NPb1P1p1/2K5/2b2kP1/2r1N1b1/1BPp1Rq1/QQrn1R1B b - - 0 1 illegal: No possible last move, all moves rejected
5k1N/1pP1pn2/Bp2P1r1/3P2R1/1KBn4/nPNq1Q2/1qQ2b2/1B1rr1RB b - - 0 2 illegal: No proof kernel
b1q2n2/qPP1pN2/6pp/1B1n3B/1N1BrRP1/5rq1/P4Q2/BRKQ2rk b - - 0 1 illegal: No proof kernel
k2bN1n1/2Ppn2B/2B1Nn2/rP1B4/1QKP3R/q1B1p3/3QRPp1/1r2q1q1 b - - 0 1 illegal: No possible last move
6b1/3bNRp1/PPp1q3/4bpnk/bK6/1NPR1P1B/B1QN1Nr1/Q5rb b - - 0 2 illegal: No proof kernel
8/2Pb1pqn/1Q2p3/b2QbRpk/3P2PB/2rn2n1/2Q1P2R/nKNB1Q1N b - - 0 2 illegal: No possible last move, all moves rejected
1Q2R3/1P1q1Q2/3p2n1/3pPqqp/2NP1q2/1KBr4/N1B1NRP1/rbN1n2k b - - 0 1 illegal: No proof kernel
1B4R1/1pPB1npK/1P1nrrP1/1P4B1/3bB3/3N1nkN/1Q3p2/2R1qqQn b - - 1 2 illegal: No possible last move
2bbq2R/3P1bK1/b2pr3/Nn5Q/P1Q2Bp1/qP1P1Q2/1p5N/Qk1BrR2 b - - 0 1 illegal: No possible last move
R7/QKN2kBn/rp1rQ1p1/1pPn4/1QN1R3/nbqQ2P1/1Pnq1P2/5B2 b - - 1 2 legal: proof: e4 c5 d4 f5 exf5 a6 dxc5 g6 h4 Ra7 h5 Nc6 h6 Bg7 hxg7 Ra8 Qd3 Nb8 Qb5 axb5 Kd2 h5 Ke3 e5 Ke4 d6 Kd5 e4 a4 b6 c4 e3 a5 h4 a6 e2 f6 e1N c6 h3 g3 h2 c7 Nc2 a7 Bf5 c8Q Nc6 Nh3 N6d4 Ng5 Na3 Nd2 Bc2 Qf5 Bb3 Qd3 Ndc2 Kc6 d5 Ne6 d4 Kb7 Kf7 Nc7 Rh5 c5 Rd5 Nc4 Rd6 Bh6 Qd7 Re1 Qd8 Rg1 h1Q+ Re4 Qf3 Rh1 Qe3 Rhh4 Qe1 Re8 Qc3 Rhe4 Rc8 a8Q Qd7 Qa7 Ra8 Qa5 Ra6 Ra8 Qd8 Qb4 Qd7 Qd1 d3 Qe2 d2 Qd3 d1N Bf4 Nde3 Be5 Ne7 Bd4 Qd8 Be5 Kg8 Bd4 Ng4 f7+ Kh7 f8Q Nf6 Qf7 Ned5 g8Q+ Kh6 Qh8+ Nh7 Qe6 Qg5 Qb8 Qgd2 Bg7+ Kg5 Qee8 Kf5 Qa7 Kg5 Bh6+ Kf6 Qc6 Kf7 Bg7 Rd8 Qd6 Rd7 Qe5 Rd6 Qe6+
n3Nkr1/1N2Brnp/P5RP/8/NKR2prb/NB2Q2b/1Pp1P3/2Q2nr1 b - - 0 1 illegal: No proof kernel
2b1R3/4p2Q/NrpQ1b1K/kB2nprR/5NP1/1PP1rPN1/1B4r1/2b1N2n b - - 1 2 legal: proof: g4 b5 e4 h5 a4 d5 axb5 dxe4 Bd3 g5 Bf1 Qd3 gxh5 g4 h3 g3 Nc3 Qf3 Nb1 Qg4 hxg4 Bg7 Bh3 Bh6 Bf1 Bf8 Ke2 Kd8 Ke3 f5 Kf4 a5 Kg5 g2 d4 e3 b6 a4 f3 e2 b3 e1R c3 a3 h6 c6 d5 a2 b7 Kc7 d6+ Kb6 d7 Ra7 d8N Bg7 h7 Nd7 b8N Ne5 Na3 Rb7 Ne2 g1R Rh5 Rg2 Ng3 Re3 Na6 Nf6 Ne6 Ka5 Nf4 Rg8 h8Q Rb6 Qh7 Bh8+ Kh6 Ne4 Qd6 Rg5 Bc4 Nf2 Nc2 Nh1 Bb2 Bf6 Rd1 a1B Bb5 Rg7 Ne1 Rg8 Ba3 Bb2 Rd5 Bc1 Bb2 Bh4 Qf6 Rg7 Rd8 Rg8 Qe6 Bf6 Re8 Rg5 Qd6
R1b2q2/1pBb1Pk1/1Nq2pq1/1P2B1Q1/2r1BP2/3rpKN1/1b4P1/r2R1Q1B b - - 0 1 illegal: Other
2rN1Q2/1k1B1N2/bpP1pP2/1R3Pb1/3nQ1R1/K1Qrn3/Ppp3qn/Q5B1 b - - 0 1 illegal: No possible last move
4R2r/1n1B1P1p/5r1p/P2qrN2/1bQP3p/2R1NNB1/b1Kp2Pn/3N1Q1k b - - 0 1 illegal: Other
B2b3B/PQ1RnP1p/p2K2pP/2rR3b/1N2Nnqb/B1P3p1/1B4rQ/4k3 b - - 0 1 illegal: No proof kernel
Q2bn2K/p3P2p/PBp1q1p1/n1R1Pk1N/Q1Qq1P2/N1R1b1r1/1Q1r4/7B b - - 0 1 illegal: No extended proof kernel
7K/qB1NQ1pB/3BQnPp/R3nP1P/2p2k1R/1p1B3P/4bN2/bbr3n1 b - - 1 2 illegal: No proof kernel
4nN1R/4p1P1/4KQb1/1BbB1p2/q3N2k/2p1PP1p/rP1BB1nQ/R4nb1 b - - 0 2 illegal: No possible last move
1kn2K2/1rp3NQ/b3p2Q/1P2P1N1/Pr1P3Q/1n4q1/1B1pq1Rp/QR4rB b - - 0 1 illegal: No proof kernel
kB1B4/bQ2qR1N/4q1PQ/5p2/p3pP1Q/P3b1pR/nrbP2K1/n2N1Q2 b - - 1 2 illegal: No proof kernel
8/p3k3/bp1q1pN1/qn2P1R1/P1QQ4/1Bp3K1/Pq2bP1Q/BnRNQr2 b - - 0 2 legal: proof: d4 d5 h4 c5 c3 g5 Nh3 Na6 Ng1 Rb8 Be3 gxh4 b3 e5 Bc1 b6 Qd3 Rb7 Qd2 Rd7 Qd1 Bh6 Nd2 Be3 dxe5 d4 Nb1 d3 Qd2 Rd4 Qd1 Ra4 bxa4 Bd4 cxd4 Bd7 Nf3 Be6 Ng1 Bc8 e4 h5 g4 f6 g5 c4 d5 d2+ Ke2 h3 Kf3 h2 e6 h4 d6 h3 e5 Rh5 g6 Nc7 e7 Na6 g7 Rh7 Ne2 Nc7 Qe1 d1B Kg3 Nb5 Nbc3 Ba6 Nf4 Be2 Rg1 h1Q Ng6 h2 Bb2 Qd5 Rc1 h1Q Nd1 Qhe4 Bc3 Rh1 Ba1 Qed4 d7+ Kf7 Bh3 Qb2 Bg2 Ke6 e8Q+ Ne7 Qh8 Qc7 d8Q Qcd6 Qh2 Q5c5 Qb4 Nd5 Qe1 Ndc3 Bb7 Nb1 g8Q+ Kf5 Bg2 c3 Bd5 Qcb4 Bb3 Qa5 Rg2 Rf1 Qf7 Bc4 Qfc7 Ke6 Qc5 Kf7 Qdc7+ Ke8 Qd4 Be2 Qcc4 Kd7 Kf4 Ke8 Rg5 Kd7 Kg3 Ke8 Nf4 Ke7 Ng6+
2k1n3/p3Q3/1P4pN/KQpn1BR1/b2Br2P/P2BBq1p/P5q1/NR2r1r1 b - - 0 1 illegal: No possible last move, all moves rejected
2n2r1R/3N2k1/nBB5/NQpNpPq1/1n5p/P6P/p1PnKbR1/Q3N1r1 b - - 1 2 legal: proof: e4 d5 g4 dxe4 a4 f5 gxf5 b5 Bd3 b4 Be2 Bb7 Bf1 Bc8 Na3 a5 Ra2 Qd3 Ne2 Bd7 Ra1 Bb5 axb5 a4 Nb1 a3 Ng1 a2 Nh3 Qg3 Ng1 Qa3 bxa3 Kd8 Qf3 Kd7 Qd1 Ke8 d4 Kf7 f4 g5 b6 e5 f6 h5 b7 b3 d5 e3 d6 g4 f5 c6 d7 g3 Ke2 b2 Nc3 b1N Bg2 Bc5 Nf3 Na6 b8Q Nd2 Qb5 Ne7 Nd5 Rhg8 Ne1 Nc8 d8N+ Kf8 f7 Kg7 Bf3 g2 f8N g1Q Nb7 Qg5 Nd7 Bd4 Na5 c5 Bb2 Rf8 Bc3 Rg8 Rg1 h4 h3 Rf8 Rb1 Rb8 Rb3 Rb6 Rg2 Rg6 Kd3 e2 Qa1 Bf2 Rb4 Qg3 Rg4 Qf4 Rg5 Qg4 Rh5 Qg5 Be4 Nf1 Rh8 Nd2 Nf3 e1N+ Ke2 Nd3 Ne1 Ndb4 Bf3 Nc4 Bd2 Qd8 Bg5 Nd2 Be7 Rg5 Bd6 Rg3 Bc7 Qg5 Bb6 Rg4 Nc7 Rg3 Bc6 Rg4 Nd5 Rg3 Rh2 Rg1 Rg2
2bbBqN1/p3b1p1/1R4N1/Q5Pr/K1P1nN2/P1PN2p1/pb4Qk/BR3n2 b - - 1 2 illegal: Other
1R1b1qQB/N1nNB3/2pK4/B1PBr1pk/n7/Rn1P2np/pQP3P1/2n5 b - - 0 1 illegal: No proof kernel
1q3R1B/k2KnppB/4P3/Q1q1RPQ1/N5P1/P1p1bBnp/qBN3b1/3n4 b - - 0 1 illegal: No proof kernel
nBR1K1Q1/rqP3Q1/p1p1p1p1/1Nk2N2/4P2R/2P1prP1/3n1b1B/5QQb b - - 0 1 illegal: No extended proof kernel
3nr2B/p2b1N1Q/k1qr1Np1/RpP5/1BPn1R2/1PR1p3/QpR2b1P/1K6 b - - 0 1 illegal: No possible last move, all moves rejected
3kbr2/3Q2BB/QN1rP3/2K2R1p/1RpN1qp1/rQP2P2/3QppbP/1n6 b - - 0 2 legal: proof: b4 a5 e4 axb4 f3 f5 Ke2 d5 Nh3 e5 Ng1 Bd6 exd5 e4 Kf2 Be5 Ke1 Nc6 f4 Nd4 fxe5 f4 Kf2 f3 Ke3 Ne6 Kf2 Ng5 Ke1 f2+ Ke2 Nf3 gxf3 Qg5 Nh3 Qe7 Ng1 Qd8 Ke3 b5 Kd4 g5 a4 h5 a5 b3 c3 g4 d6 e3 a6 c6 d7+ Ke7 e6 b2 a7 b4 Bd3 b3 Ra5 Nf6 Kc5 Qf8 Na3 b1R Ne2 b2 Nd4 Ra1 Qb3 b1B Bh7 Ba6 Nc4 Rd8 a8Q Bg6 Nb6 Bf1 Qa6 e2 d3 Ra3 Bh6 Bh3 Bg7 Be8 Rb1 Bg2 Rb5 Nd5 Rb4 Nc7 Rd1 Nb5 Rd2 Ra1 Ra2 Qf4 Ra5 Na3 Rab5 Rc8 Ra5 Kd8 Rab5 Kc7 Ra5 Rf8 d8Q+ Kb8 Qd7 Rd8 Nf5 Ra2 d4 Nb1 d5 Ra1 d6 Ra3 Qe7 Rd7 Nd4 Rd8 d7 Kc7 Kc4 c5 Kd5 c4 Kc5 Qf7 Qg5 Qf6 Qe3 Qf4 Qd2 Ra8 Qb5 Ra6 d8Q+ Kb7 Qa8+ Kc7 Qac6+ Kd8 Qb7 Ra7 Q7a6 Rd7 Qc6 Rd6 Qcb5 Kc7 Qd7+ Kb8 Kb5 Bg6 Qe8+ Kc7 Qf7+ Kd8 Qfa7 Rd5+ Kc6 Rd7 Rf5 Be8 Kc5 Rd6 Qd7+
1q3R2/n2PNq1p/p2Rp1P1/BrN1bp1Q/1pr3nP/1B6/2Q2P1k/1K1N3N b - - 0 2 legal: proof: b4 b5 e4 d5 a4 dxe4 Bb2 c5 bxc5 b4 Bd4 Ba6 Bxg7 Bb5 axb5 Qc7 Ra6 Qd6 Ra1 Qd8 d4 Kd7 Kd2 Ke6 Kc1 Kf5 h4 Kf4 g4 f5 c4 e3 g5 e6 c6 e2 g6 e1Q c5 Qd6 c7 Qa6 c8N Qe5 c6 Qe4 d5 Qb6 d6 Nh6 c7 Qe5 d7 Ng4 Nc3 Rg8 Bf6 Qee3+ Kb1 Bd6 Bc4 Qb7 b6 Be7 Bb3 Nh6 Nge2+ Kf3 Ng3+ Kg2 Qh5 Qe5 Nd1 Bd6 Ne7 Nc6 c8Q Qb8 b7 Ng4 Rf1 Bc7 Nh1 Kh2 Re1 Qd6 Re5 Qd4 Rd5 Be5 Rd6 Re8 Qc7 Rc8 Ra6 Nd8 Qc3 Rc4 Qc2 Nc6 Bg5 Qd2 Be3 Qc3 Bb6 Qd4 Ba5 Qc5 Rd2 Qcd6 Rd4 Qg8 b8N Qf7 Rb6 Qc7 Na6 Qb8 Nc5 a6 Rd6 Ra7 Rb5 Rb7 Rb6 Na7 Rbc6 Rb6 Rc8 Rb5 Rf8
N1Rq2BQ/n1Pr2q1/p1r5/4P2Q/PBpbQ3/2Pnb2b/rqkN4/R5QK b - - 0 1 illegal: No proof kernel
1n1K1nB1/b2N1NB1/Q2P1p1n/3P1r2/1br3bp/2k1bPRq/Q4B1P/B1R2b2 b - - 0 1 illegal: No possible last move
NnRQ4/1rR1pq2/bbPp4/RrPQPnb1/2b3k1/2bP2B1/4K1B1/3r1R1N b - - 0 1 illegal: No proof kernel
2NQ1N2/qrPRn2p/1n2b1Br/Rbn5/2p2b1P/n1P1k3/2PN2KQ/4N1Br b - - 0 1 illegal: No possible last move
KRbNQ3/BR1p1Bq1/r1qq1n1N/5kp1/1P5B/QBPPr3/4q1P1/qnb5 b - - 0 1 illegal: No proof kernel
K1BRN3/2R5/2PRq1n1/N5rQ/P1pBkqqr/1bPQ2qp/1n1R1b1P/3n4 b - - 0 1 illegal: No proof kernel
1n6/N1KBb3/N1Q2k2/p2NpP1n/P1RRP1qr/2N2qB1/1n2Q1Pr/1b1nr3 b - - 0 1 illegal: No possible last move
2bn4/N3nrP1/p5pb/PQ1BP3/2q3PB/2QR1nrb/1R1b2qk/KNN4N b - - 0 1 illegal: No proof kernel
1n1R4/2kbPr1p/p2b1PbP/3rr3/PR2q1N1/BK3N2/1QB4n/qrBB2Q1 b - - 0 1 legal: proof: d4 e5 g4 exd4 b4 f5 gxf5 c5 bxc5 Qf6 Bb2 Qe7 Bc1 Qd8 Kd2 g5 e4 b5 c4 d5 Kc2 Kd7 h4 a6 a4 g4 f4 b4 c6+ Kc7 e5 g3 e6 g2 c5 d3+ Kb3 d4 f6 d2 h5 d3 f5 Bb7 h6 Kc8 f7 Be7 f8B Nf6 c7 Ra7 Na3 Qe8 Nf3 g1Q Nc2 Bc6 Rh4 Bd6 Ne3 Ng4 f6 Nh2 Be2 Bd7 Ng4 Rb7 Qc2 d1R Qb2 d2 Be7 Re1 Bd1 Rf8 Ra2 Rb6 Ra3 Kb7 c8B+ Kc7 c6 Re5 Bb7 Rf7 Ba8 Kc8 c7 Qd4 Bc2 d1R Bae4 Rd2 Bd1 Qg1 Bf8 Rdd5 Bec2 Rbb5 Ra2 Kb7 c8Q+ Kb6 Kc4 b3 Qc5+ Kb7 Qe3 Kc7 Ra3 Qh1 Qg1 Rb6 Qa1 b2 Rd3 b1B Qb2 Qg2 Rd4 Qe2+ Kc3 Qe4 Rb4 Qc8 Kb3 Qb7 Rh5 Qc6 Rf5 Qc5 Rg5 Qcd4 Rg8 Rb7 Be7 Rb6 Rd8 Rbb5 Qa3 Qa1 Qb2 Rh5 Qa3 Kc6 Bd3 Ba2+ Kc2 Qe3 Rd4 Be5 B1e2 Kc7 Bd1 Rb7 Bc5 Bd6 e7 Rhe5 Qb3 Qe1 B5a3 Rbb5 Qb1 Bc4 Qa2 Rb1 Qb2 Qe3 Bf5 Bd3+ Kb3 Qf4 Rb4 Qd4 Be6 Bg6 Bf5 Qf4 Bd3 Qe4 B3c2
1NB2R1N/1pNq1n2/2b1nR2/1N1nQq2/KQ2p3/bPB2P1k/1rP1P1r1/6nb b - - 0 1 illegal: No proof kernel
1R5N/Q1q1NkbK/Np2b2p/1rQP3R/2b3PN/bPn3r1/q1n4P/1q4BB b - - 0 1 illegal: No proof kernel
2r1N2K/prnbn1nP/2pb3R/7B/k1PB1B2/q5q1/P1PBrr2/1RQ1NQ2 b - - 0 1 illegal: No proof kernel
5r2/n4Q2/nbQ5/B1ppQr2/2RPB3/qnPQrrRn/2KP2PN/4N1kb b - - 0 1 illegal: No proof kernel
bN1b2K1/BkP5/2P2p1r/2qn1Npn/R1B1nQPr/1nR5/4NPQ1/5bNb b - - 0 1 illegal: No possible last move, all moves rejected
1B1r1b1R/Q2n2Q1/1p1qp3/4Pp2/1PNbN1N1/2qBR1P1/r1k2Prn/2N2b1K b - - 0 3 legal: proof: c4 g5 h4 gxh4 a4 d5 cxd5 b6 a5 Qd7 a6 Qd6 Ra5 Qc6 Ra1 Qb7 axb7 Bh6 Nh3 Bg7 Ng1 Bf8 d4 Kd7 b4 Kd6 e4 a5 g3 h5 Bc4 f5 Kf1 c5 Kg2 e6 Qd3 h3+ Kh2 h4 Bb2 a4 Qd1 a3 Qg4 a2 Na3 Nd7 Ne2 Ngf6 Rae1 a1B Qg7 Ng4+ Kg1 Ra4 Nc1 Nh2 Be2 c4 b8N c3 Nc6 c2 Ne5 Ba6 Ng4 Be7 Bc3 Rd8 Bb2 Bf8 Nc4+ Kc7 d6+ Kc6 d5+ Kb5 Bc3 Ra2 Be5 Ka4 Bf4 Bd4 Be5 Nf6 d7 Bb5 d6 Ba6 Nd3 c1Q Bf4 Qc3 Nc1 Rc8 d8N Nd7 Nf7 Rd8 Ng5 Bb5 Nd3 Kb3 Nc1+ Kc2 Bf3 Nf1 Re3 h2+ Kg2 Ba6 Be2 h3+ Kf3 Nc5 d7 Bb5 Bb8 Ba6 Rg1 h1R e5 Rh2 Rh1 Rg2 Ne4 h2 Qe7 Re8 d8Q Nd7 Qc7 Rd8 Qg7 Bb5 Rg1 h1Q Qa7 Qh4 Rh1 Qe7 Rh6 Qd6 Rh8 Rh2 Qe7 Rh1 Kg2 Rh2+ Kg1 Rg2+ Kh1 Nh2 Qg7 Qc5 Nb2 Bd3 Nc4 Qd6 Bf3 Bf1 Bd1+ Kb1 Be2 Kc2 Bd3+
B4KB1/3p3P/3P1p2/3pb1P1/1r1RR1r1/r2nqPQ1/N1qB1Qb1/B1Nkn2n b - - 0 1 illegal: No proof kernel
Q1R1Q1Nr/K3B3/3P3q/3B1p1P/1rbp1RNk/np1R1P2/qb1P1r2/n2R3n b - - 0 1 illegal: No proof kernel
1Q1rb3/RrBn2n1/2B5/2p1qN1k/RpQ1q2N/2PP4/nPPK1p1b/3RR2q b - - 0 1 illegal: No proof kernel
B3bK2/rPr2B2/2p2Qrp/4p3/R1Pn1Bnq/2bq3N/Q3P1PN/1kB1R1n1 b - - 0 1 illegal: No proof kernel forced: bxLB
n3B3/BbPb1pk1/b2b4/2pn1Pr1/rN2q3/QRP4P/1N1BR1pB/Q1K1b3 b - - 0 1 illegal: No proof kernel
1nb2Q2/R1B2p2/1R1b1P1k/3b3r/nPr1q3/Pp1Rr1pb/1P1R2BQ/K3NN2 b - - 0 1 illegal: No proof kernel
K3B1bn/5PR1/4RN1k/bprQ2Nr/1PPr2Q1/pp2b1B1/P2n4/1qN2N1r b - - 0 1 illegal: No proof kernel
1K1n2Nn/2pPpknP/1N1Q3q/p6r/BrrR4/7R/P3P2B/2QRRnbb b - - 0 1 illegal: No proof kernel
2q2N1K/N2Pp2p/1k2P2Q/2n1Qrp1/1p2rnR1/r1Pbn1PR/Q2BBQ2/4b3 b - - 0 1 illegal: No proof kernel
Bnn1N3/1nQrp1b1/rQ1p2B1/1PqPP2b/1p5R/pKb3BB/3PN3/1k3R2 b - - 0 1 illegal: No proof kernel
4R1Qb/pP1NN3/3k1bnK/4n1Rp/P2r1RrP/1b1B2p1/1q1pQP1B/5n1R b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 bxc4 g4 f5 gxf5 Qg5 Bg2 Qh4 Bf1 Qd8 Kd2 Ke7 Ke3 h5 Kf4 g5+ Ke3 c5 b4 d5 a4 c3 h4 c2 e6 c4 f6+ Kd6 f7 g4 Kf4 c3 e4 d4 e7 d3 Kg5 Nc6 b5 Qb6 e8R Ne5 Qe2 Ne7 Bf4 c1B Nf3 c2 Nc3 d2 Nd5 Be6 Bh2 Ng6 Ne7 Bg7 f8R Rg8 Rf4 Bh8 Kh6 Bb2 Ra3 Qb7 b6 c1N Rc3 Ba2 Rc5 Rd8 Ra5 Qb8 b7 Bb3 Rc5 Qc7 Rb5 Qc2 Ra5 Ba1 Rb5 Qb2 Rc5 Nc4 Rg5 g3 Ne5 Ne3 Nd7 Nd3 e5+ Ke6 Nb8 Rd4 Nd7 Rg7 Nc6+ Kd5 e6+ Kd6 e7 Rg8 Ra8 Rg7 e8Q Nde5 Ne7 Rg8 Qd1 Bf6 Bd3 Nf1 Qe2 Nf8 Rgf5 Rg4 Rg5 Nfg6 Qg8 Bh8 Rf3 Nc6 Qc8 Rb4 Qd8 Qc1 Nd5 Baf6 Qg8 Nce5 Re8 Rbd4 Ne7 Qb2 Rf4
1q6/3P2p1/3P4/QN1b2n1/rp2Rrbp/r1BB1kP1/QPKn1bNp/1R3RR1 b - - 0 1 illegal: Other
b2q1bQ1/k2N1r2/n2qrn1P/B2Npp2/6pp/1b1QP1P1/R1P1B2R/2KN3N b - - 0 1 illegal: No proof kernel
5nRN/3pn2r/Qb2R3/1b3NqP/p2PB1N1/kp2QpP1/1BbqrP2/N5K1 b - - 0 1 illegal: No proof kernel
b2qn3/p1qpp1nR/b3P1K1/Br1BN3/B1NP3p/qQB1R3/1P2r2P/1k5Q b - - 2 3 legal: proof: c4 g5 f4 gxf4 a3 b5 cxb5 Bg7 Qb3 Bc3 Qd1 Bb4 axb4 Bb7 Ra3 Ba6 Ra1 Bc8 Kf2 f5 Kf3 Kf7 e4 Kg6 d4 c5 g4 h5 e5 c4 g5 c3 b6 h4 b7 c2 b5 Nc6 b8Q Rh6 b6 Nf6 b7 Ne8 Bd2 c1Q Bc3 Qe3+ Kg2 f3+ Kh3 f2+ Nf3 f4 Ra3 Kf5 g6 Ke4 g7 Re6 Bb5 f1Q+ Kg4 Qc4 Nbd2+ Kd3 Ba4 Qc5 Kf5 Qd6 g8B Q6c7 Ng5 f3 Nf7 f2 Rg1 f1B Rg7 Bg2 Qh1 Qg3 Rb3 Kc2 Rh7 Bf3 Nc4 Bg2 Be1 Kb1 Re3 Bd5 Re2 Qa3 Re3 Nb4 Kg5 Nd3 Kf5 Nf4 Bc3+ Ka2 Kg5 Nh5 Kf5 Rf6+ Kg5 Rf2 Kg6 Bg2 Ng5 Rc2 Bd5 Re2 e6 Nhg7 Nf7 Bf3 Qd1 Bg2 Qb3+ Kb1 Nfe5 Qb6 Qd6 Qbc7 b8B Ba6 Qc5 Qd6 Bc7 Rb8 B7a5 Rb5 Ba8 Bgb7 Qd5 Q6c7 Qf3 Bc8 Bc6 Bcb7 Bd5 Ba8 Qh1+
1Q1B2b1/1N3r2/Q1R2pp1/p1pk4/N2nPPq1/P1Pr1b1R/1R2B1qn/K1R3n1 b - - 0 3 legal: proof: g4 e5 d4 h5 dxe5 hxg4 b4 a6 b5 Rh5 Bb2 Rh6 Bc1 Rh8 Kd2 Bc5 Ke1 Ba7 b6 Kf8 bxa7 Ke8 Kd2 Ke7 Kc3 Ke6 Kb2 c5 h4 b5 h5 d5 a3 b4 h6 b3 h7 d4 Nc3 g6 Ne4 d3 Bg5 d2 f4 a5 e3 g3 Rh3 g2 Qb1 d1Q Nd6 Nf6 Nb7 Q8d2 Be2 Rf8 h8R Ng4 Bd8 Kd5 e6 f6 e7 Be6 e8R Bg8 Re6 Rf7 Rc6 Nh2 Ra2 Nd7 R8h6 Ne5 Ka1 Nef3 Rb2 Nd4 R6h4 Rc8 a8Q Rcc7 Qa6 Rcd7 c3 Rd6 Nf3 g1N Ne5 Rdd7 Nc4 Rd6 Bf1 Qg4 Rh7 Qdg2 Nb6+ Ke6 Na4 Kd5 Be2 Rdd7 Rc2 Rd6 Rc1 Rdd7 Qbd3 Rd6 Qdb5 b2+ Ka2 b1B+ Ka1 Be4 Qbb6 Qh5 Qc7 Qhg4 Qb8 Rf8 Rhc7 Bf3 Rb6 Rf7 Rb2 Rb6 Rbb1 Rb2 Rc6 Rd2 Rb2 Rd3 e4+
2R1QNN1/1pBP1bbb/6Q1/7K/r1B1p2n/nPP4q/qrQ1PppR/3Q1k2 b - - 0 1 illegal: No proof kernel
3B1R2/r1Qnn1P1/P1pRpRB1/2P4n/Qp1nPq2/2kN4/4p3/KRbN1b1r b - - 0 1 illegal: No proof kernel
3bN1K1/1br4p/B1p5/1bkr1npb/B4PRQ/2Pp1Nq1/R2P2P1/2nNN1Q1 b - - 0 3 illegal: No proof kernel
2Qr3Q/1Qn1b3/1pNpqrQ1/3nRbp1/bBp3kP/3P2P1/N1P2R2/1b3BK1 b - - 2 3 legal: proof: f4 a5 b4 axb4 Nf3 e5 fxe5 Be7 Ng5 Bc5 Nxh7 Bf8 Kf2 Ke7 e4 Ke6 a4 g5 h4 f5 d3 c5 g3 d6 a5 b3 a6 c4 a7 b2 Nc3 b1B Qh5 b6 Kg1 f4 Nf6 f3 Rh2 Rh6 Ra5 Ne7 Na2 Nd7 Qg6 Qc7 Ba3 Nb8 Rf2 Nd5 Bb4 Qf7 Ng8+ Qf6 Rb5 Na6 Ne7 Bd7 Nc6 Rd8 a8Q Be7 Qb7 Nac7 Qh5 Rg6 Qh8 Qf5 Rc5 Rf6 Ra5 Kf7 e6+ Kg6 e5 Qe4 Rc5 Kf5 Rb5 Kg4 Ra5 Bf8 e7 Qg6 e8Q Be7 e6 Qf5 Nd4 Ba4 Qg6 Qe5 Nc6 Qf5 Rd2 f2+ Kh1 Bf8 e7 Qe6 e8Q Be7 Qd7 Na6 Qdc8 Nac7 Bg2 f1B Rf2 Be2 Bf1 Bf3+ Kh2 Be4 Kg1 Bf5 Rb5 Ne3 Re5 Ned5 Rfe2 Rg8 Rg2 Rd8 Rf2
R4rQ1/1Q2r2p/pqpbn2r/Q1n1BNk1/P1P5/3Qr3/bPpBRN1P/2K5 b - - 1 3 legal: proof: g4 f5 gxf5 e5 c3 e4 Bg2 e3 Be4 b5 Bc2 b4 dxe3 b3 e4 bxc2 e5 Bb4 Qd4 Ba3 Qd1 Bf8 Kd2 Ke7 f4 d5 e4 g5 e6 Kf6 e5+ Ke7 f6+ Ke8 f5 d4 f7+ Ke7 c4 d3 Nf3 g4 Re1 g3 Re2 g2 Nh4 g1R Nc3 Rg6 Ne4 Rh6 Nf2 Na6 Qh1 Nf6 Qb7 Ne8 a3 Qd6 f6+ Kd8 Nf5 Ng7 Ra2 Qb6 e7+ Kd7 Ra1 Ke6 e8Q+ Be7 f8Q Nc5 Qec6+ Bd6 Qd8 Re8 f7 Re7 f8B Bd7 Qf3 Ba4 Qe3 c6 Qdc7 Kf7 e6+ Kf6 Qe4 Bb3 Qd8 Qa6 Qa5 Qb6 Qf3 Ba2 Qh3 Rd7 e7 Kg5 e8Q Nge6 Bg7 Re7 Qg8 Rf8 Be5+ Ng7 Ke3 d2 Qf3 d1R Bd2 Re1 Qfd5 Kh5 Qd3 Nge6 a4 Rh1 Rg1 a6 Rg4 Re1 Rd4 Bb8 Rd8 Bd6 Ra8 Rg1 Bb4 Rg3+ Kd2 Rf3 Kc1 Re3 Qf7+ Kg5 Bd2 Rh8 Qe8 Rg8 Qf7 Rf8 Qg8+
3NB2b/4P3/n2RbQpr/p4QP1/p3q1b1/PppQR2Q/2P2r1n/k3KN1B b - - 2 3 illegal: Other
N4R1q/K4NR1/pB6/b2p3p/Q3B1pQ/PB2nBp1/1P1Pr1Pq/1rqk3n b - - 0 1 illegal: No possible last move, all moves rejected
b4k1q/R1p2NQb/2N2r2/pp1p2Nq/1b1Pp2Q/nP2B3/nNP1P1BK/6R1 b - - 3 4 legal: proof: g4 b5 f4 h5 a4 hxg4 a5 g5 fxg5 a6 Nh3 Ra7 Ng1 Rb7 Bh3 Rb6 axb6 a5 Bg2 Rh3 Bf1 Rh8 Kf2 f5 Kg3 d5 d4 e5 h4 f4+ Kh2 e4 h5 f3 b7 f2 g6 Ne7 g7 Nf5 g8Q Na6 b8N Rh6 b3 Ne3 Na3 Rf6 h6 Nc4 h7 Nb4 h8N Bb7 Nh3 Na2 Be3 Ba8 Bg2 f1B Qg6+ Ke7 Nf7 g3+ Kg1 Ke8 Nhg5 Bb4 Qe1 Kf8 Nc6 Qc8 Rh4 Qg4 Rh6 Qh5 Bf3 Bh3 Bg2 Bf5 Rd1 Nd2 Nc4 Nb1 Nb2 Na3 Qf2 Re6 Qf4 Rd6 Qh4 Rf6 Bh1 g2 Kh2 Qf3 Rg1 Qg4 Qgh5 Bh7 Rg6 Rf5 Rd6 Rf6 Qg6 Qh5 Na7 Be1 Ra6 Bb4 Nc6 Bc3 Ra1 Bb4 Ra7 g1Q+ Kh3 Qc1 Kh2 Qf1 Bg2 Qff3 Rb1 Qh6 Rg1 Qfh5 Bf4 Qg7 Be3 Qh8 Qg7+
5N1Q/p6Q/4p2p/K3Bq1P/P1r1b2p/prr2BbN/p3P1NP/1RnR1N1k b - - 1 2 illegal: Other
1kqQ4/1Bb1P3/1RN4Q/r1p1Q1qQ/p1P1p1p1/Ppn4N/2b1r1Pp/4RKB1 b - - 0 1 illegal: No proof kernel
2r4r/4bR1Q/1KnR2bQ/1bN3r1/1Q3Pn1/1BP1k1q1/1P1qB1P1/1R2B1n1 b - - 0 1 legal: proof: e4 c5 a4 g5 h4 b5 hxg5 f5 axb5 a5 exf5 a4 d4 a3 dxc5 a2 Qd6 axb1Q Qd5 Na6 Qd1 Nb8 Ke2 Kf7 Kd3 h5 Kd4 e5+ Kc4 h4 f4 e4 c3 h3 b6 d5+ Kb5 d4 b7 e3 f6 Ke6 g6 Kd5 c6 Ke4 f7 d3 g7 d2 c7 h2 Ra6 e2 Rd6 e1N Qh5 d1B Be2 Be7 f8Q Nc6 b8Q Nh6 g8B Bd7 c8R Nf3 Bb3 Ng4 Bd2 Bc2 Be1 Ke3 Qh7 Bg6 Rc7 Qd3+ Kb6 Ra5 Qf6 Rg5 Nh3 Ng1 Nf2 Qd2 Qfg7 Qg8 Qgh6 Qg7 Ne4 Rc8 Rb7 Qf6 Ba6 Nb4 Qa7 Rgc5 Qg5 Ne2 Bh4 Bf8 Rb1 h1R Qh8 Ng1 Be2 Bb5 Qa4 Nc6 Rf7 Be7 Be1 Rh7 Qg7 Rhh8 Q5h6 Qh4 Qb4 Qg3 Qgh7 Rg5 Nc5
3q1q2/2PrPN2/kR4Rr/1nK1QQ2/1P5b/1bNbQB1P/3n2rn/3R3N b - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 e5 fxe5 a5 d4 a4 dxc5 a3 b3 Ra7 Bb2 axb2 Qc1 Ra5 Qd1 Ra8 Kf2 g5 Ke3 f5 Kd4 d5 c4 Kd7 e4 Kc6 a4 g4 b4 f4 h6 g3 h3 g2 a5 f3 e6 f2 h7 Na6 e5 Ne7 Qd2 Rb8 Qe3 Kc7 c6 Ng6 e7 Ra8 e8Q Bf5 e6 Rb8 c5 Be7 Ne2 g1R Nbc3 b1N Ng3 Rg2 Rg1 Bh4 Be2 f1Q Nh1 Bd3 Bf3 Nd2 Rd1 Ne5 e7 Ng4 Qh5 Nh2 Qhe5+ Kc8 c7 Ra8 Be4 Qff8 Bf3 Kd7 c8R Nc7 a6 Kc6 a7 Rb8 Na2 Kb5 c6 Kb6 Nc3 Ka6 Kc5 Nb5 c7 d4 Qf5 Qd7 Re8 Rd8 Qee5 Qc8 Qe3 Rd7 a8Q+ Na7 Qfe5 Qd8 Qb8 Nb5 Qc8 Rhg8 h8N R8g6 Nf7 Rh6 Qg7 Be2 Qge5 d3 Nd5 Nb1 Nc3 d2 Qh5 Bd3 Qhe5 Rd4 Qcf5 Rd7 Rde1 d1B Ref1 Bb3 Rd1 Qg7 Rg8 Qgf8 Rg6+ Ka7 Rd6 Nd2 Qg7 Re2 Rgg6 Rg2 Bc6 Ka6 Qgd4 Be6 Qde5 Bb3 Bf3+ b6+ Rxb6+
2kn1b1q/N2NRnn1/Q4r2/1p2P3/2bPQ1rP/1NRRB3/1b2P2r/1Q2K3 b - - 0 1 illegal: No possible last move
4N3/r1r4Q/P1Qr4/1n2R1Q1/PRKR1Nq1/3nP1q1/PNp1B1kr/1q3b2 b - - 0 1 illegal: No proof kernel
rr4b1/q1QN1qR1/2b1Q3/1PQp3p/2q1PP1B/n1N2K2/3BPn2/2Nk3B b - - 0 1 legal: proof: b4 c5 h4 b5 a4 e5 g4 f5 gxf5 g5 d3 e4 dxe4 g4 Ra3 Be7 Rd3 Bg5 hxg5 Nf6 Rb3 Qc7 axb5 Ng8 b6 Qd8 b5 Qc7 Rb2 Qd8 Rb4 cxb4 c4 Kf7 f3 h5 Kf2 a5 b7 g3+ Kg2 a4 f6 Kg6 f7 b3 f8B a3 c5 a2 c6 a1Q c7 b2 Rh2 Nc6 b8Q Nf6 Rh1 Qa7 Qc2 Ne5 Bd2 Nc4 Be7 Qg8 Nc3 b1B Nh3 Ng4 Rg1 Bb7 c8N Qf7 Nb6 Bc6 Qc7 Rhb8 Nf2 Ba2 Nd3 Nf2 Nc1 Na3 Bd8 d6 Nd7 Be6 Bf6 d5 Be7 Qf5 Bd8 Bg8 Be7 Qf7 Bd8 Kg7 g6 Qd4 Bh4 Qc4 Be1 Kh6 g7 Kg6 Bd2 Ng4 Kh3 g2 Kg3 Nf2 Be1 Bh7 g8Q+ Kh6 Qgc8 Bg8 Bd2+ Kg6 Rh1 g1Q+ Bg2 Ng4 Qa6 Qa7 Rg1 Nf2 Qab6 Qe7 Kf4 Qf7+ Ke3 Kh6 Qc5 Kg6 Qa4 Kh6 Qa6 Kg6 Bh1+ Kh6 Bg3 Kg5 f4+ Kg4 Bh4+ Kh3 Rg5 Kh2 Bg3+ Kg1 Bh4+ Kf1 Rg4 Bh7 Kf3 Bg8 Be3 Ke1 Rg7 Bb7 Qe6 Bc6 Na4 Kd1 Bd2 Qb4 Nd3 Qd4 Nc1 Qc4 Nc3+
QrB1r1r1/r2PQ3/1P5b/1Bk1Nq2/p3QnpP/4K1P1/R4N2/2n1B1bN b - - 0 1 legal: proof: e4 h5 b4 b5 a4 f5 axb5 d5 exf5 a5 c4 h4 cxd5 h3 g3 Be6 f3 Kf7 b6 Bc8 b5 Ba6 bxa6 Qc8 Ra4 Qe8 Re4 Qd8 Re2 Ke8 Rg2 hxg2 Kf2 Kd7 h4 Kd6 d4 c5 f6 g5 a7 e5 f7 a4 f4 c4 f5 g4 f6 e4 Qe1 c3 Ke3 c2 Nc3 Rh5 Nh3 g1B+ Nf2 Qc7 Nd1 Qc5 Bb5 Nc6 Rh2 Nce7 Bd2 Rb8 a8B c1R Bb7 Qc2 Bc8 Nh6 Rg2 Bg7 f8Q Rg5 f7 Qb1 Qe2 Rc7 Be1 Ra7 Qg8 Ng6 f8N Qc2 Nd7 Nf7 Ne5 Nf4 Qd3 Bh6 Qc4 Bh2 Nh1 Bg1+ Ndf2 Qb1 Qh8 Rg8 Rh2 Nd8 Qh7 Nde6 Qb7 Nc5 Qa8 Nb3 Qd3 Nc1 Rg2 Ke7 d6+ Kd8 d7 Ke7 d5 Kd6 d8Q+ Kc5 d6 Qc2 d7 Qb1 Kd2 e3+ Kd1 e2+ Kd2 Qc2+ Ke3 Qb1 Bd2 e1R+ Qe2 Rd1 Be1 Qf5 Qe7+ Rd6 Qd3 Re8 Qde4 Rg8 Qe8 Re6 Qf7 Ree8 Rh2 Qe6 Qe7+ Qd6 Qb1 Rd8 Rg2 Rde8 Qf5 Bh2 Nd1 Bg1+ Rf2 Bh2 Ra2 Bg1+ Ke4 Rab7 Ndf2 Ra7 Qeh7 Qg6 Ke3 Qf7 Qfe4 Qf5 Qe7+
2n1N2Q/B2r4/4N1kP/QRQbPb2/1P2B3/4q1b1/3p1rpP/N3BbKb b - - 0 1 illegal: No proof kernel
Rnr2R1n/2pnNbn1/3PRP1k/1r6/1Pr1Q3/2p1b3/2NQ2QP/N2B1K2 b - - 0 1 legal: proof: g4 b5 e4 h5 gxh5 f5 exf5 b4 c3 b3 axb3 Nh6 b4 Kf7 b5 Ng8 b6 Ke8 b4 d6 b5 Qd7 Ba3 Qd8 Bc5 dxc5 Ra3 Qd4 Ra1 Qb4 cxb4 Kd8 Nf3 Kd7 Ng1 Ke8 f4 Kf7 d4 a5 d5 g5 f6 e5 b7 c4 f5 g4 d6 g3 b6 e4 h6 g2 h7 c3 Qd3 e3 Qe4 a4 Qc6 e2 Qc4+ Be6 Nf3 g1N Na3 Ne7 Nd4 Bh6 Nac2 a3 Nb3 a2 Qe4 Rc8 h8Q Be3 Qh6 Ra5 Bh3 Rc5 Bg4 Ng6 Qg5 Kg8 f7+ Kh7 f8R Rc4 f6 Nh3 Qgd5 Bf7 Qd2 Kh6 Rf1 Nc6 b8Q Nhf4 b7 Nh8 Qa8 Ne6 b8N Ng7 Rf2 Ne5 Rf1 Nd7 Nc6 Nb8 Rf2 Rd4 Ne7 Rc4 Rc1 a1R Bf3 Ra7 Ra1 Ra4 Ra3 Ra5 Nba1 Rac5 Qab7 Rg5 Ra8 Rb5 Rg2 Bf4 Kf2 e1N Bd1 Nd3+ Kf1 Be3 Re2 Ne5 Qg2 Ned7 Qbc6 Bg5 Re6 Be3 Qce4
2Bk1b2/p4P1n/b6Q/5B1n/PBR1KN2/p1rRb2P/rP2n3/R3n1QQ b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 f5 e4 d5 cxd5 c5 exf5 c4 d4 b4 a4 Qb6 Na3 Qc5 dxc5 bxa3 Kd2 e5 Ke3 g5 f4 e4 f6 c3 d6 g4 f7+ Kd7 c6+ Kd8 h6 c2 f5 g3 c7+ Kd7 h7 g2 f6 Ba6 c8B+ Kd8 Bd2 c1B Nh3 g1N d7 Ne2 Nf4 Ng1 Kd4 e3 Ke4 e2 Bb4 e1N Bh3 Ne2 Bf5 Be3 Rc1 Nc6 Rf1 Ncd4 Rc4 Ne6 Rh1 Ng7 Qd4 Ng2 Ra1 Nh5 Qd1 Rb8 Qg1 Ne1 h3 Rb6 Qh1 Rd6 Qg1 Rd1 Qh1 Ne7 Qg1 Rg8 h8Q Rg3 Qh6 Ng6 Qh1 Bfc5 Qg5 Nf8 Qg6 Nh7 f8Q+ Kc7 Qfh6 Kd8 f7 Bf8 Qg4 Rc1 Qg1 Rc3 Qf3 Rg6 Qfh1 Rc6 Rd1 Rc1 Rd3 Ra1 Rd1 Ra2 Ra1 Kc7 d8R Rc5 Rd3 Rc6 Bd6+ Kd8 Rcd4 Rc1 Rc4 Rc3 Bb4+
b1rBQ1Q1/5R1n/Pp3Q2/2r1prn1/b4Rk1/bBB3p1/3PK1PP/2RN4 b - - 0 1 legal: proof: e4 d5 f4 a5 c4 g5 fxg5 a4 cxd5 a3 bxa3 Na6 a4 Nb8 a5 Bh6 Ke2 Bg7 Ke1 Bf8 d6 h5 Nc3 Qd7 Nd5 Qb5 Ne3 Qc5 Ng4 Qd5 exd5 hxg4 a4 Kd7 a6 e5 a7 c5 g6 f5 g7 g3 a5 f4 a6 b6 Ra3 c4 Qf3 c3 Bd3 c2 Ra2 Nc6 Ne2 Nd4 Bc4 Bb7 Bb3 Nf6 g8Q Rc8 a8Q Ne6 Bb2 Ng5 Bc3 Rh5 Ra4 Nfh7 Qf2 f3 Rf4 Bc6 Qb8 Ba8 Rf1 Kd8 d7 Ke7 d8R Rc5 Rc8 c1R+ Bd1 Rc2 d6+ Kd7 Rf7+ Ke6 d7 Be7 d8B Bd6 Rfc7+ Kf5 Rf7+ Kg4 Rc6 Be7 Rcf6 Rc8 Rf5 Ba3 Rg1 Rb2 Bb3 Rc2 Qf1 f2+ Kd1 Rh6 Rf3 Rf6 Rf4+ Kh5 Rh1 Rc5 Qc8 Rf5 Qe6 Rc8 Qee8 Rc5 Qg1 f1B Qf2 Rc8 Qf3+ Kh6 Qfc6+ Kh5 Qf6 Rc5 Ba5 Rc8 Nc3 Bb5 Rg1 Ba4 Ke2 Rc5 Rc1 Rc8 Nd1 R2c5 Rf2 Kh4 Bc3 Kg4 Rf4+
Q4K1b/1NR5/1rNn4/3k2pP/2p1pP1Q/pp1RP2P/1R1Bb2q/1Q1n1N2 b - - 0 1 legal: proof: g4 h5 gxh5 d5 c4 f5 cxd5 f4 e3 Nd7 Ke2 f3+ Kd3 Nb8 Be2 fxe2 Kc3 Qd7 Kc2 Qd8 a4 a5 Kb3 b5 Kc3 Qd7 Kc2 b4 b3 Qb5 axb5 a4 Qf1 a3 Qd1 Ra4 bxa4 Rh7 Nc3 Rh6 Nb1 Rh8 Kb3 Kd7 Kc4 Kd6 f4 e1Q d4 c5 h3 e5 a5 g6 b6 e4 b7 Qg3 a6 Bg7 a7 Nf6 a8Q Bh6 Ne2 Qh4 Nd2 Qg4 Nf1 Ne8 Bd2 Rh7 Rc1 Nd7 b8R Ke7 d6+ Kf6 Kd5 Ne5 d7 Nc4 d8N Qg2 Nb7 Bg7 Qb3 Kf5 Qb1 Bh8 Rh2 Bd7 Rd8 b3 Rc2 Bc8 Kc6 Qh1 d5 Nb2 d6 Ke6 d7 Nd6 Rc3 Rh6 Nd4+ Kf7 Kc7 Nd1 Nc6 Ke6 Rd3 c4 Re8+ Kf7 d8Q Bg4 Qh4 g5 Kd8 Be2 Re7+ Kf6 Rg2 Qh2 Rc7 Kf5 Ke7 Rg6 Kf8 Ke6 Nd4+ Kd5 Be1 Bg4 Rb2 Be2 Bb4 Nb5 Bc3 Rb6 Bd2 Nd6 Nc6+
B1b1NKn1/q1Ppr2N/5Q2/B2P1krR/1bb1N2q/QBq1P1n1/2P5/4r1Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 a4 Nh6 b4 Ng8 bxc5 Qg5 Ra2 Qf6 Rb2 Qd8 Rb4 axb4 Kf2 Ke7 Ke3 Ke6 Kf4 f5 h4 b5 d4 b3 c6 b4 d5+ Kf7 e6+ Kf6 a5 b2 e7 g6 e3 b3 c7 Rh7 a6 Nc6 a7 Nd4 Nc3 b1Q h6 b2 h5 Qa1 Bc4 b1Q Nh3 Qb7 Ng5 Rb8 a8B Qba7 Ba3 Rb1 Qg1 Re1 Bb3 Rf7 h7 Ne2+ Kf3 f4 Ke4 f3 h8Q+ Rg7 h6 f2 h7 f1B Bb4 Ng3+ Kf4 Bd3 Rh5 Bc4 Ba5 Qa3 Kg4 Qb2 Kh4 Kf5 e8N Bb4 Ne4 Re7 Qc3 Qa1 h8Q Qa3 Nh7+ g5+ Kh3 Qb2 Qhd4 Qa3 Qa1 Qb2 Qa3 Qc3 Rh6 g4+ Kh4 Nh1 Kh5 g3 Qb6 g2 Qc6 Ke5 Kg6 Ng3 Qh1 g1R Rh4 Re6+ Kf7 Kf5 Rh5+ Qg5 Qd6 Re7+ Kf8 Rg2 Rh6 Qh4 Qg1 Nh5 Qa6 Rg5 Qd6 Ng3 Rh5 Qf4 Qb6 Qh4 Qf6+
K2N1N2/6Pb/1r2NpQk/b2P2q1/3nbbP1/1nb2Br1/3QQPnB/4B2R b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 e5 b4 Nh6 d4 Bf5 d6 Ng8 d5 Bg4 Ra3 Be6 Rd3 Bc8 Rd4 exd4 Kd2 c5 Kd3 h5 Ke4 a5 g4 c4 g6 d3 g7 a4 b6 d2 e3 a3 b5 h4 b7 c3 b6 a2 Be2 a1B Bf3 c2 Nc3 h3 Nb5 h2 Ne2 Ra6 Nf4 Rh3 Nd4 Rg3 Nfe6 Ne7 Qe2 d1N Bd2 c1B Be1 Nbc6 b8Q Bc3 b7 Na5 Ke5 Nb3 e4 Nf5 d7+ Ke7 Qa7 Rb6 b8B Nde3 Qaa2 Ng2 Qad2 Ba6 Bc7 Bd3 Bb8 Ba5 Bc7 Bb2 Bb8 Bbc3 Bc7 Qc8 d8N Ke8 Bb8 Qc5 Bc7 Qe7 Bb8 Qh4 Bd6 Be7 Nf8 f6+ Ke6 Qg5 e5 Rb4 Bc7 Bd6 Bb8 Ne7 Bc7 Bh7 Bb8 Nc6 Bc7 Bc5 Bb8 Ba7 Kd6 Rb6 N4e6 Ncd4+ Kc7 Ke7 Kc8 Ke8 Bd6 Bb8 Bc7 Rd6 Kb7 Rb6+ Ka8 Ke7 Nb7 Kf7 Nbd8+ Kg8 Bd6 Bc7 Nf4 Bb8 e6 Bc7 e7 Bb8 Rg1 h1B e8Q Bc7 N4e6 Bb8 Bc5 Bf4 Bd6 Bc2 Nd7+ Kh7 Ndf8+ Kh6 Rf1 Bh7 Bb8 Be3 Rg1 Rh3 Bg3 Bf4 Bh2 Rg3 Be4 Ne3 Qf7 Bf3 Rh1 Ng2 Qed3 Bd1 Q3e2 Bc2 Bf3 Bce4 Qg6+
n1N1Nrb1/Q3rqQb/2P1pn1B/2Q1k1r1/1bR2b2/P3N2P/2nBPK2/3B4 b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 bxa5 Nc6 g4 Nb8 gxf5 h5 a3 Na6 Ra2 Rh6 Rb2 Rh8 Rb4 Nb8 Rg4 hxg4 f4 Kf7 c4 Kf6 c6 d5 a6 b5 h3 g5 a7 g3 c5 d4 c7 g2 c6 d3 Nc3 b4 Nf3 g1B Qa4 b3 Qe4 b2 Nd4 b1B Bd2 g4 Nc2 g3 Qg2 Nd7 Ne3 Bh2 Nb5 Rh7 Nd6 Nb6 Qd5 g2 Qc5 g1R Kf2 Rhg7 Bg2 Qe8 Bd5 Be6 c8N R1g5 Bb3 Qf7 Rc1 Rb8 Rc4 Na8 Be1 d2 Bd1 Nc7 a8Q Be4 Qaa7 Na8 Ba4 d1N+ Kf1 Nb2 Bd1 Nd3 Bd2 Nb4 Kf2 Rh7 Nb5 Nc2 Nc7 Kg7 f6+ Kg6 Ned5 Kf5 Ne8 Bd3 Rc3 Ke4 f5 Ke5 Rc4 Bf4 Ne3+ Bd5 Qcb6 e6 Qbb7 Bb4 Qe7 B5e4 Qf8 Qg7 f7 Nf6 Qh8 Qg6 f8B Re7 Bh6 Qf7 Qg8 Nd5 f6 Bh7 Qg7 Bg8 Kf3 Bdh7 Kf2 Qf8 f7+ Nf6 Qh8 Qg7 f8Q Qf7 Qhg7 Rbb7 Ned6 Re8 Qe7 Rf8 Ne8 Rc7 Nd5 Rd7 Qec5 Re7 Ne3+
2NrN1Bb/k1p1bq2/n3Pb1Q/1RP5/2b1KP2/P1b2RR1/1rn5/qN1Q2Q1 b - - 0 1 illegal: No proof kernel
Q3Nrkb/n3p2q/1B2Pq2/P2rqQ2/3Q1PBB/2Rb4/2P1Nr2/n1K1Nq2 b - - 0 1 legal: proof: d4 a5 g4 c5 dxc5 h5 a4 f5 gxf5 Nf6 b4 Ne4 bxa5 Nf6 Ra3 Ng8 Rg3 Nc6 Rg6 Nb8 Rg4 hxg4 Kd2 Kf7 f4 b5 h4 d5 e4 g5 h5 d4 a6 g3 a5 g2 a7 b4 c6 d3 c7 g4 f6 b3 e5 b2 h6 g3 h7 Qd5 Rh3 Bf5 c8Q Bg7 Na3 b1Q Qa6 Qb6 Rh1 Nc6 Rh3 Nh6 Nc4 Raf8 a8N Na7 Ne2 g1Q Ne3 g2 Nc7 Qh1 Ne8 g1Q Ng2 Be4 Bb2 Nf5 Kc1 Nd4 Ne1 Qf2 Bg2 Qff1 Bf3 Qbc6 Bg4 d2+ Kb1 Qh2 Rc3 Nb3 Qd3 Bg6 Qf5 Na1 Bc1 Rhg8 h8B Qh7 Ba3 Qde6 Bc5 Qcd5 Bb6 Qe4 Qc1 d1R Kb2 Rd8 Qd1 Rd5 Kc1 Qc6 Qc8 Qd4 Qa8 Bd3 Qd2 Kg6 f7 Qf6 e6 Qde5 Qe3 Qff5 Nf6 Rc8 f8Q Kh6 Qf7 Rcf8 Ne8 Bf6 Bh5 Rg2 Qd4 Rf2 Bg4 Bg7 Qg8 Bf6 Bg7+ Kg6 Bh6+ Bg7 Bg5 Qff6 Bh4 Kh6 Bf5 Bh8 Qg3 Rf7 Qh3 Rf8 Nd6 Kg7 Ne8+ Kg8 Qg4+ Qhg7 Qh5 Qgg6 Bg4 Qh7 Qf5
1Rbb4/k4r2/q1PpBPQN/4b2K/1qBP3n/1P2RrQ1/5B1b/3rnQR1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 c4 Na3 c3 Nc4 Nc6 axb5 Nb8 b3 Bb7 Nb2 cxb2 Qf3 Ba6 Qd1 Bc8 Ke2 b1R Kf3 e5 Kg4 a5 c4 h5+ Kh4 a4 g4 a3 f4 a2 d3 d6 f6 Kd7 b6 Kc6 c5 Kb7 f7 e4 f5 e3 f6 e2 g6 e1B+ Kg5 h4 g7 h3 Ne2 h2 Be3 Ra7 Nd4 Ne7 g8Q Bg3 Nf5 Rh3 Qg6 Na6 Nh6 Nb4 Rg1 h1Q Bf2 Nf5 c6+ Ka8 Qc1 Be7 f8Q Nc2 Qfg7 Nh4 Kh5 Bh2 g5 Ne1 b7+ Kb8 Rg3 Qb6 Re3 Rf3 Bh3 Qb5 Be6 Qf1 Qc4 Rd1 Rb1 Kc7 b8R a1B Qf4 Be5 d4 Qb7 Qg3 Kb6 Qf5 Qh1 g6 Qf1 Qfh3 Qa6 Qf1 Bd8 Qf7 Ra8 g7 Ka7 Qfg6 Qbb6 g8B Qb4 Rb6 Rb8 Bc4 Rb7 Bge6 Rh7 Rb8 Rc7 Ra1 Rf7 Ra5 Bf4 Rg5 Be5 Qgh3 Qbb5 Rg1 Qb4 Qhg3
3b1rq1/1pP1b3/QK1R1NB1/1PP1RP2/3nnb1k/1N6/N2Q1n1R/2Qn2rb b - - 0 1 legal: proof: e4 a5 b4 h5 g4 f5 exf5 c5 gxh5 c4 b5 c3 Ba3 Rh7 Bb4 axb4 dxc3 Nc6 c4 Rh8 c5 Nb8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 h4+ Kh6 c4 g5 a4 d5 f4 g4 f6 e6 a5 b3 f7 b2 a6 g3 c6 g2 c7 Ra7 Nd2 b1N Nb3 Nc3 Rh2 Qe8 Ne2 Ne4 Qc1 Be7 f8N Ngf6 Nc3 Bd7 Na2 Ng4 Nh7 Rf8 Nf6 Bc6 Bd3 g1B+ Rf2 Bh2 Rg2 Ra8 a7 Ngf2 Qd2 Qg6 Rd1 Qg8 Qc1 Na6 Bb1 Nb4 Re1 Rab8 a8Q Bg3 Qa6 Nc2+ Ke5 d4 Re2 Kg7 h6+ Kg6 h7 d3 h8R d2 Re1 d1N h5+ Kf7 h6 Kg6 h7 Nd4 Nd5 Kh5 Nf6+ Kh4 Re2 Nd2 Bg6 Bd8 Kd6 e5 Kc5 e4 f5 e3 Kb6 Nde4 c5 Bf4 Rd2 e2 Rd3 e1B Rd2 Ne6 Rd6 Nd4 Qd2 Qf7 Rg8 Rc8 Rg7 Qg8 Re7 Bd5 Qc1 Bed2 Re8 Bg5 Re5 Bdf4 Nd7 Bge7 h8Q+ Qh7 Qg7 Qg8 Nf6 Ra8 Qaa3 Ra4 Qd2 Rc4 Qa6 Rc2 Qc1 Re2 Qf7 Re1 Qd2 Bc6 Qc4 Rg1 Qcc1 Ng5 Rg3 Bh1 Rg2 Nge4 Rh2+
6b1/1p1Nr1N1/3rQbr1/R1nq2QB/PPP1pP2/2B1KN1k/7B/1Q1bn1n1 b - - 0 1 legal: proof: b4 c5 d4 f5 dxc5 h5 e4 a5 exf5 a4 g4 Qc7 gxh5 Rh7 a3 Qd8 Ra2 Kf7 Rb2 Rh8 Rb3 axb3 a4 Ke8 Kd2 Kf7 f4 Kf6 c4 g5 h4 e5 c6 d5 h6 d4 h5 e4 h7 g4 c7 g3 h6 g2 Rh2 d3 Ne2 g1N Nd4 b2 Rh5 Qd5 Be2 Na6 Ke3 d2 Ne6 Ne7 Ng7 Rg8 h8B Be6 c8Q Ng6 h7 Nh4 Qc2 d1B Nd2 b1R Nf3 Rb2 Qb1 Nc5 Bd2 Bd6 Be1 Be5 Bg3 Rd2 Bh2 Ra6 Qc6 Re8 Qb5 Bg8 Rg5 Kf7 f6 Re7 Rf5 Kg6 f7 Kh6 f8N Rg6 Nd7 Bf6 Qc6 Rd4 Qe6 Rd2 Nfe5 Rd4 Bh5 Nhf3 Rg5 Ne1 Nf3 Qc6 Rf5 Rd6 Re5 Nb3 Rb5 Qd5 Ra5 Nc5 Ne8 Bg5 Bc3 Bf6 Ng7 Rg4 Be8 Rg6 h8Q+ Bh7 Nf5+ Kh5 Qg7 Kg4 Qh6 Bg8 Qg5+ Kh3 Bf7 Rh6 Bh5 Rg6 Ng7+
3r3N/3Qp1PN/1n2Q3/nnp2bbK/1PP1q1R1/r1N1qP2/Q3R1B1/3Rrk2 b - - 0 1 legal: proof: e4 b5 h4 d5 exd5 g5 hxg5 b4 b3 f6 Bb2 Bg4 Be5 fxe5 a3 Nh6 axb4 Bc8 b5 Ng8 Ke2 Kd7 Kf3 Kd6 g4 Kc5 d4+ Kb4 c4 h5 d6 c5 g6 a5 d7 h4 d5 h3 g7 h2 b6 a4 g5 a3 Kg4 e4 g6 a2 f3 e3 d6 e2 b7 e1R Qe2 Ra3 Bg2 Rd1 Qe6 Nc6 Nc3 Na7 b8Q+ Nb5 Qa8 Re1 Rd1 a1N Nh3 Nf6+ Kg5 Qb6 d8N Qc6 g8R Nd5 d7 Nb6 Nf7 Qe4 d8Q Bh6+ Kh5 Bd7 Rf1 h1Q Rf2 Qg1 Re2 Qge3 Nhg5 Bc8 Nh7 Bg5 Rg7 Bd7 Qc7 Rd8 Bh1 Bc8 Nh8 Bd7 Qh3 Bf5 Qe5 Nc2 Qe6 Ncd4 Qa7 Nc6 Qh2 Na5 Qad7 Qc1 Rf7 Qce3 g7 Bh3 Rf4 Bf5 Rg4 Nc6 Nb1 Na5 Nd2 Kc3 b4 Qd5 Qg2 Kd3 Ne4+ Qd2 Ra1 Qe3 Nc3 Qdd4 Rb2 Qe4 Rd1+ Ke3 Qc2 Qd2 Qb3 Kf2 Qa2 Kf1 Rc2 Qdd3 Re2 Qde3 Bg2+
2qn1b2/pq1r1Rb1/1B4BB/1KP1nR2/3Qr3/P1p4P/1QP1Q3/r1RN2nk b - - 0 2 legal: proof: g4 c5 d4 f5 gxf5 e5 dxe5 h5 b3 b6 Na3 Ba6 Nc4 Bb5 Ne3 c4 Ng4 hxg4 Ba3 c3 Bc1 Bc4 bxc4 Bd6 Bd2 Bc5 Bc1 Bf8 e4 Ke7 Ke2 d5 Kd3 g5 f4 g3 a3 b5 f6+ Ke6 c5 g2 f7 g4 Nh3 g1B Nf2 d4 h3 b4 Kc4 d3 Kb5 d2 Bd3 b3 Rh2 g3 f5+ Kd7 f6 Ke6 Qe2 d1R Bg5 b2 Rc1 g2 Qe3 Qc8 Qd4 Rf1 Nd1 Ne7 Bh6 Be3 Bf4 g1N Rf2 Bg7 f8R Nd7 f7 Nc6 Bg3 Rh4 Rf5 Beh6 Bf4 Ke7 e6 Nd8 Bc7 Ne5 Bb6 b1Q+ Qb4 Nec6 e5 Re4 Qb2 Rb8 Rh8 Bf8 Rh7 Rb7 Rg7 Rd7 Rh7 Bfg7 f8B+ Ke8 e7 Rfe1 Rh5 Kf7 e6+ Kf6 e8Q Ne5 e7 Ke6 Qg6+ Kd5 e8Q Rf1 Qf6 Kd4 Nf2 Ke3 Qh4 Kf3 Nd1 Kg2 Rf5 Kh1 Qg4 Bh8 Rhf7 B8g7 Qe6 Rfe1 Qc4 Rf1 Qd4 Rfe1 Qe2 Rf1 Be7 Bf8 Bg5 Bhg7 Qbb4 Qb3 Bh6 Qd5 Qb3 Qdb7 Qb2 Qca8 Nf2+ Kh2 Rd1 Re3 R5f6 Qac8 Bg6 Re4 Rf5 Kg2 Ra1 Rb1 Nd1+ Kh1 Qb3 Rb2 Qbb4 Ra2 Rc1 Ra1 Qb2
b2b3R/3b1k2/pRP1Q1r1/B7/n1bKQp1P/1P1N1Pqn/7B/r1rBR1Q1 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 e6 g4 Ke7 Nc3 Ke8 Nd5 exd5 gxh5 d4 Kd2 f5 Kd3 d5 c4 g5 e4 g4 h4 g3 e5 g2 e6 Qc7 b6 Nd7 e7 Qg3+ Nf3 g1R b3 Rh6 b7 Rg6 b8B Ngf6 h6 Ne4 c6 Kf7 h7 Nb6 h8R Bd7 c5 Na4 c7 Ng5 c8Q Nh3 Bc7 f4 Ba5 Bh6 Be3 Bg5 Be2 Bf6 Qb1 Rc1 Bd1 Bg5 Re1 Bf6 Ke2 d3+ Kd2 d4 e8Q+ Kg7 Qe4 Kf7 Ra2 Bd8 Rc2 a6 Qcc6 Rc8 Rc4 Rc7 Rb4 Rc8 Rb6 Rc7 Qc2 Ra1 Qb1 Rc8 Kc1 d2+ Kc2 Rc7 Kd3 Rc8 Kc4 d3 Kd4 Rc7 Be2 d1B Ne5+ Ke7 Bf3 d2 Nd3+ Kf7 Bh5 Bf3 Qce6+ Kg7 Qc1 d1B Bg4 Bg2 Bh5 Bc2 Bd1 Bf1 f3 Rc6 Q6e5+ Kf7 Bg1 Rc8 Bh2 Rc7 Nb2 Bc4 Qce3 B2d3 Qg1 Bd5 Qd6 B3c4 Nd3 Ba8 Rb4 Rb7 c6 Rb5 Qde5 Rc5 Rb8 Bb5 Rb6 Rcc1 Qd6 Bc4 Qde6+
1RBN1Q2/n2Kn1p1/8/2N4P/3p2PQ/qPbQ2Rr/k1nPRN1r/1b1n1r2 b - - 1 2 legal: proof: g4 f5 e4 b5 exf5 h5 Bc4 b4 Bf1 b3 axb3 c5 Nf3 c4 Ng1 c3 bxc3 h4 Ba3 Ba6 Bd6 Bc8 Bg3 hxg3 Ke2 Kf7 Kf3 a5 Ke4 e5 Kd5 e4 h4 e3 f4 g2 c4 d6 c5 a4 c4 a3 h5 a2 f6 e2 f5 e1N c6 Qd7 c7 Qa4 c5 Nc6 Nh3 g1R Nc3 Ng2 Rh2 Rh1 Qf3 Ra6 Bc4 Na7 Rg1 a1N Ne4 Rc6 Ba6 Ke8 f7+ Kd7 f6 Qa5 Kd4 d5 Ke5 Ne3 Re2 d4 Rgg2 Bb7 c8R Rh2 Rb8 Nd1 Rg1 Be7 f8N+ Kc7 f7 Rhh6 Rge1 Rhf6 Rg1 Qa2 Qe3 Rf1 Nhf2 Re6+ Kf5 Kc6 Qg5 Kd5 c6 Bb4 c7 Re8 Qe3 Bc3 Ne6 Rf8 Nd8 Ne7+ Kg5 Bc8 Kf4 Bf5 Qh3 Bb4 c8Q Qb2 Qc2 Bc3 Qh4 Qc1 Nf6+ Kc5 Ke5 Bh7 Bb7 Kb4 Kd6 Ka3 N6e4 Qb2 Ke6 Ka2 Nc5 Bg6 Qe4 Qa3 Bc8 Bh7 Qe3 Bb1 Kd7 Nc2 Qd3 Rh3 Nfe4 Rf2 Rg3 Rfh2 Qa6 Rh8 Qd3 Rh6 f8Q Rf6 Re1 Rf4 Re2 Rf1 Nf2
2K5/1n4P1/q1b3rN/1QnpnBB1/1QBP4/N3N2p/kPrRQP2/4nqb1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 exf5 c4 hxg5 Ba6 d4 Bb7 Ra3 Bc8 Rd3 cxd3 Kd2 Kf7 Kc3 e5 Kc4 h5 Kd5 a5 g4 h4 c4 e4 b6 a4 b7 h3 c5 a3 c6 e3 c7 d2 f6 a2 Qa4 d1Q Qb5 a1N Bd3 e2 Qb4 e1N Na3 Nh6 Ne2 Bd6 Nf4 Nc6 b8Q Ra6 Ng2 Ne5 Ne3 Nb3 Q8b5 Nf5 Rf1 Nc5 g6+ Kg8 g7 Kf7 g8N Bb7+ Qc6 Qf8 c8B Qh6 g5 Qe2 Rg1 Qf1 Qd2 Bb8 Qe2 Nd6 Bd2 Ba8 Rg3 Ndb7 Qb5 d6 Bcf5 Rh7 Bc1 Rg7 Rg1 Rg6 Rg3 Rc6 Bd2 Ke8 f7+ Kd8 f8Q+ Kc7 Qa4 Kb6 Qc4 Qh8 Nh6 Qf6 Bc1 Ka5 Qe7 Rg8 g6 Rg7 Qa6+ Kb4 Qf8 Kb3 Qb5+ Ka2 Rf3 Re7 g7 Re6 Rg3 Nb3 Bd2 Rc2 Rg1 N3c5 Rg3 Nc4 Kc6 d5+ Qd6 Ne5+ Kb6 Ba7+ Kc7 Bb8+ Kc8 Qg6 Qdd7 Ra6 Qb4 Qb6 Qc6 Qa5 Qcb5 Rg6 Nd1 Qa6 Bg5 Nf7 Re3 Bh2 Re7 Bg1 Ne3 Ne5 Rc7 Nb3 Rc4 N3c5 Rc3 Rd2 Rc1 Rc2 Rd1 Rf6 Rd2 Rg6 Kc7 Na5 Kb8 Bc6 Kc7 Nab7 Kb8 Ne6 Kc8 Nec5 Bc4+
b1kR1QR1/2B5/1q1p2P1/pPr5/1bnN4/P1Q3K1/nrpr3P/2bNQ1RN b - - 0 1 illegal: No possible last move, all moves rejected
1K1R2kb/1pR2bQ1/8/pbn1Pr1Q/B1r1N2r/PP5P/1RN2np1/N1q4Q b - - 1 2 illegal: No possible last move
1N1q3R/2QpQb1q/1P1P1Qp1/Nr2qpR1/2b3N1/1r3PP1/B4K2/1R1knn2 b - - 1 3 legal: proof: d4 b5 h4 c5 b4 e5 bxc5 g6 a4 b4 d5 b3 h5 b2 h6 Bg7 hxg7 Nh6 Be3 Ng8 Bd4 exd4 Nd2 Qb6 Nb1 Qb5 Nc3 b1Q axb5 Qa2 Nb1 Qa5+ Nd2 Qc7 Nb1 Qd8 c4 Ke7 e4 Kf6 b6 Kg5 g3 a5 e5 h5 e6 d3 d6 a4 e7 a3 e8Q h4 c6 h3 c7 h2 c5 a2 c6 Rh5 Qf3 Nf6 g8R Ne4 Rh8 Nd2 Na3 Ba6 c8Q Bc4 c7 Nc6 Rb1 a1Q Qf6+ Kg4 Qee7 Rb5 Nf3 Nb4 Rh5 Qd4 Rb2 Qe5+ Be2 Nf1 Rg5+ Kh3 Qb7 Kg2 c8N Raa5 Na7 d2+ Kd1 Ra4 Nc6 Nd3 Nb8 Rab4 Qc7 Ne1 Bd3 Rb3 Bb1 R3b4 Ba2 Rb3 Qh8 f5 Qhf6 Be6 Nc4 Bf7 Na5 Bc4 Ng1 Bf7 f3 Kf2 Nh3+ Ke3 Rg1 h1Q Nf2 Qh7 Ng4+ Kd3 Rh1 Bc4 Ne3 Kc3 Nac6 Bf7 Ke2 d1B+ Kf2 Be2 Na5+ Bec4 Ng4 Kd3 Rb1 Kd2 Rb2+ Kd1 Rhh5 Qg7 Rh8 Qh7 Rb1+
2r2r2/1P3N2/p5R1/q1B3pP/1bP3NQ/P2k1QpQ/1q2Rr1n/Nb1n2KR b - - 0 1 illegal: No proof kernel
n1Q1k3/B2R2r1/2p1N2N/1RQ1p3/p6q/q1b4P/1RPrQPbP/2KnrN2 b - - 0 1 legal: proof: d4 h5 a4 e5 dxe5 b5 axb5 h4 e6 h3 gxh3 Qe7 Bg5 Qf6 Bc1 Qd8 e4 Ke7 e5 d6 Bc4 Ke8 e7 Kd7 e8N Ke7 Bf1 Ke6 Bc4+ Kf5 e6 Ke4 e7 Ke5 Qf3 Kd4 Be6 fxe6 Qd1+ Kc5 Kd2 a5 b3 g5 b6 Kc6 b7 Kd7 b4 a4 b5 d5 b6 d4 Qf1 g4 Qe2 d3 Nf3 g3 Ng1 g2 Qe4 e5 Qb4 Nf6 Ng7 Rg8 Ne6 Ke8 Ra2 Rg7 Nf3 g1Q Nfg5 Nd5 Nf7 Nd7 b8R Qg3 b7 Ne3 Nh6 Nd1 Qc5 Nb6 Rb2 Qd6 Rb5 Qh4 Ba3 Ra7 Kc1 Na8 Nd2 c6 Nf1 d2+ Kb1 Ra5 Bb2 Qd3 Bd4 Qa3 Rb2 Ra7 Rg1 Ra5 Rg3 Rb5 Rd3 Rb4 Be3 Re4 Rd7 Rd4 Qc4 Re4 Ba7 Re1 Qe2 Rg3 Nf7 Bh6 Rb5 Rg7 Rb2 Be3 Nh6 Bd4 Rd6 Bc3 Nd8 Be6 Rd3 Bd5 Ne6+ Kd7 e8Q+ Kd6 Qf8+ Kd7 Qc5 Ne3+ Qd1 Qd8 Rd4 Ke8 Rd3 Bg2 Rd7 Re7 Rc8 Rg7 b8Q Qb4 Rcc7 Qa3 Qb7 Qg5 Qa6 Qh4 Rcb7 Nd5 R7b5 Ne3 Qc1 d1R Qb7 Rd2 Qd1 Ree2 Qe1 Nd1 Kc1 Rd6 Qd2 Re1 Qe2 Rd2 Qc8+
3rq1bN/k7/1ppQP3/R1b4P/PN3Br1/1rPK1nRp/RQn1QN2/5r2 b - - 0 1 illegal: No proof kernel
RQ1r1Q2/1pbr1nK1/1P2P1p1/5BNk/4B1pB/6rQ/q3P1P1/1qNnn1N1 b - - 0 1 illegal: Other
1R6/rq2pq2/4PN2/R1pqkp2/1Pbb3r/4B1PQ/RQ3PN1/1NK1n1qQ b - - 0 1 legal: proof: h4 b5 c4 d5 cxd5 g6 a4 Be6 axb5 Bc8 h5 Bb7 e3 Bc8 Be2 Nc6 h6 Nd4 Bf3 Ne6 Bh5 Ng7 hxg7 gxh5 d4 Kd7 Kd2 Kd6 b4 c5 e4 f5 g3 a5 b6 h4 b7 h5 b8R h3 Kc2 h2 Kb2 a4 Qe1 a3+ Kc2 a2 Ne2 h4 Nf4 h3 Be3 Qe8 Ng2 Nf6 g8N Be6 Kc1 Nh5 Nf6 Qf7 Qe2 Ra4 Qb2 Ra7 Rd1 Rh6 Rd2 Bg7 Re2 Nf4 e5+ Kc7 Rc2 Rh4 d6+ Kc6 d7 Bc4 e6 Kd6 d5 h1Q+ Kd2 h2 d8Q+ Rd7 Qc8 Ra7 Qh8 Nd3 Qh5 Ne1 Kc1 Qg1 Qg4 h1Q Qh3 Rd4 Rd2 Ke5 d6 Bh8 d7 Bg7 Nh4 Qb7 d8Q Qgg2 Qh8 Qgd5 Nc3 Rf4 Ng2 Rh4 Qh1 Re4 Q8h3 Rh4 Rb1 a1Q Rc2 Qa4 Ra1 Qad7 Ra5 Qd7c6 Nf4 Qg2 Rd2 Qg1 Ng2 Qd5 Nb1+ Kd6 Ng4 Bd4 Nf6 Ke5 Qb3 Qf1 Rda2 Qg1 Qb2
1b1nk3/QQ2Qp2/4P2N/Pqp2q2/pq1r1PRB/p1P4B/B3b1N1/n1K2N2 b - - 0 1 illegal: No proof kernel
n1Q2nb1/Kp2p1Q1/2R4P/p2bp1bN/3P1Br1/3b2R1/1P2PR1k/N2N1Qq1 b - - 0 1 illegal: No proof kernel
QQB5/4ppp1/Q4PrB/4NPp1/qrb1P3/PRnp1R1n/Bp1K4/k6R b - - 0 1 illegal: No proof kernel forced: wxDB
B3R1nB/r2R3b/2k1q3/2br2pb/1prp2P1/1n3r1B/1PQPNQ1P/4RQK1 b - - 0 1 illegal: Other
n4QB1/Q2ppnp1/2rP2r1/Pb2P2K/R5nb/B3b1P1/3BRn2/Nkq2QR1 b - - 0 1 illegal: No proof kernel forced: wxDB
2n1n2b/R2b2qp/1QP1kp2/pn1rB3/1n2BP1P/P3N3/p2r3Q/R1R1BQ1K b - - 0 1 illegal: No proof kernel
4K2R/1r2P1QB/Pkr2PR1/nNb3B1/3r1q1q/Bn2PR2/b1R3bR/3n4 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 e3 f5 Nc3 e5 d4 f4 dxe5 f3 Nce2 fxe2 Kd2 Bh3 Qc2 Bg4 Qd1 Bc8 Kd3 Kd7 Kd4 e1Q a4 b5 h4 g5 f4 b4 e6+ Kd6 f5 c6 a6 Kc7 Ke5 b3 a7 b2 d6+ Kb7 h6 b1B h5 g4 h7 c5 h6 g3 a5 c4 a6+ Kb6 d7 c3 Bd3 c2 Qg4 g2 Rh2 Qf2 Ne2 g1R Nd4 Be7 Nb5 Bc5 Ra2 Ne7 Kf6 Qf4 Kf7 Rd1 Ba3 c1N Rac2 Ba2 Qg7 Nd5 Be4 Re8 h8R Rd4 h7 Qdh4 Rg8 Nc6 h8R Rb8 a8R Nb3 Bd3 Bb7 d8B+ Qc7+ Be7 Qcf4 Bg5 Nca5 e7 Rec8 f6 Nc3 Bh7 Rc7 Rh3 Rbc8 Rf3 Nd1 Rb8 Rc6 Rh2 R8c7 Rbc8 Rcd6 Ke8 Re6 Rfh3 Bg2 Rf3 Rb7 Rc7 Bb4 Rc2 Rc6 Qf8 Bd6 Rg6 Bc5 Qg7
1n1bR2R/2q1N3/4r1N1/P1r1n2b/1k1RPn2/1P2r3/1PQ1n1NK/1R1r1R1B b - - 0 1 legal: proof: g4 h5 gxh5 b5 f4 e5 fxe5 b4 Bh3 b3 Bg2 Nh6 Bf1 Ng8 cxb3 a5 d3 d6 Na3 a4 Be3 Bg4 Nb5 a3 Bc5 Bc8 Na7 Ke7 Bxa3 Ke8 Bc5 dxc5 Kf2 Kd7 Kg3 g5 a4 f5 e4 g4 h4 f4+ Kh2 c4 a5 c5 d4 c3 d5 f3 d6 c2 h6 c1R h7 c4 h5 g3+ Kh3 f2 h6 g2 Ra3 c3 Nb5 Kc6+ d7 Kc5 e6 c2 e7 Kb4 e8R Ra6 Qd3 Be7 Ne2 g1N+ Kh2 Nf6 Na7 Nh3 Nf4 Re6 Ra1 Qc7 d8R Nfd7 Rb1 Ne5 Bg2 f1R Qe2 Rg8 h8N Rg3 h7 Rfd1 Nhg6 Re3 h8R Bf6 Rd5 Bd8 Rf1 Ba6 Qf2 Be2 Bh1 Bh5 Ng2 Nf4 Rd6 Rd5 Nc8 Rc5 Rd7 Rd1 Nce7 c1N Qc2 Nce2 Rd4+
N4KN1/3r3B/q1P1PRNn/bn1q1n2/3NRq2/2Pr1N1k/q3RP2/2r1Q3 b - - 0 1 legal: proof: g4 b5 d4 f5 a4 e5 axb5 g5 h3 c5 dxc5 Kf7 Be3 Ke8 Bd4 exd4 Bg2 Bb7 Bf1 Bf3 gxf5 g4 Bg2 g3 Bf1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 Kd2 Ke7 Kd3 Kf6 Ke4 Kg5 Kd5 a5 b4 h5 e4 h4 f6 g2 c3 d3 b6 d2 e5 h3 b7 Kh4 b5 h2 g5 a4 f7 a3 g6 a2 g7 Na6 b8R Qf6 b6 Ra7 b7 Nh6 g8N Qf4 c6 Bb4 f8N Ba5 Kd6 Nc7 Ke7 d5 e6 d4 Rd8 d3 b8N Nb5+ Nbd7 Rc7 Qe2 d1Q Nd2 Qb1 Nb3 d2 Qe1 d1Q Nf3+ Kh3 Ng6 Qd5 Bd3 g1R Nbd4 Rg3 Rg1 h1N Rf8 Qbb3 Rd1 a1Q Rf6 Qba2 Kf8 Rb7 Nb6 Rd7 Rf1 Rg1 Be4 Ng3 Na8 Ngf5 Rd2 Rhh7 Rc2 Rd6 Re2 Rhd7 Qd2 Rh1 Rb1 Rc1 Rb4 Bb6 Bd3 Qa6 Qe1 Q1a2 Bc2 Ba5 N6e7 Ng7 Bh7 Ngf5 Ng6 Qdc4 Nc2 Rd3 Ra4 Qcb3 Rae4 Qd5 Ncd4
2B5/nRBNK3/3r2rk/1P2P1Nn/3bP1nQ/1nr1P3/N1n1b2B/b1N1N3 b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 dxe5 c5 g4 Nh6 gxh5 Ng8 b4 Ke7 e4 Ba6 b6 Bc8 b5 Ke8 Ra4 Qg5 Rb4 Qe3+ fxe3 cxb4 Kf2 g5 Kg3 d5 h4 a5 c4 f5 b7 Kf7 c5 Kg7 c6 a4 c7 g4 Kf4 d4 Kg5 b3 Nh3 a3 Nf2 g3 Nd3 a2 Qg4 a1B Ne1 d3 Bd2 g2 Nc3 g1R Na2 f4 Bh3 Nc6 b8B b2 h6+ Kh7 h5 b1N Qg3 Bg4 c8N f3 Qh4 f2 Bc7 f1N Nb6 Ra6 Nd7 Be2+ Kf5 Rg5+ Ke6 Nf6 Bda5 d2 Rh2 Kg8 h7+ Kg7 h6+ Kg6 Rf2 Nh5 Rf7 d1N Bb4 Rg8 Bg4 Rg7 h8N+ Kh7 Be7 Na3 Ng6 Nc2 Nf4 Nf2 Nfd3 Nd2 Ndc1 Nb3 Bed8 Kg6 h7 Bc5 h8N+ Kh6 Re7 Bcd4 Nf7+ Kg6 Bh3 Ng4 Kd6 Ra3 Ke6 Rf5 Ng5 Na7 Rf7 Rf1 Ke7 Kh6 Kd6 Rf6+ Ne6 Nd2 Nb6 Nf1 Bb8 Rd3 Rb7 Rg8 Bbc7 Ngh2 Be7 Rgg6 Bf8+ Kh7 Ke7 Nd2 Bh6 Nb3 Bf4 Rc3 Ng5+ Kh6 Bc8 Rd6 Nd7 Ng4 Bh2
K4R2/5n1R/n1PP1N1n/Q5nN/3k1PNr/2bp2b1/4rqNP/1q2NR1B b - - 0 1 legal: proof: e4 d5 d4 h5 g4 c5 gxh5 b5 dxc5 d4 a4 f6 axb5 Bg4 Bf4 Be6 Be5 Bd5 exd5 fxe5 Kd2 Kf7 Kd3 Kf6 Ke4 a5 b4 g5 c4 e6 f4 g4 c6 g3 h6 a4 c7 a3 c8R g2 b6 a2 b5 d3 b7 Ne7 d6 Nd7 b8N Qe8 b6 Ng8 h7 Nh6 b7 Bg7 Nc6 Nb8 c5 Na6 Ne2 g1N b8N Nf3 Bg2 Qg8 Nd2 Ng5+ Ke3 e4 Kd4 e3 Ne5 Qe8 c6 Kf5 Rf1 Ngf7 Nd7 Qg8 Rf8 Re8 Rb1 a1Q+ Kc4 Re7 Ng4 e5 Kb5 e4 Kb6 Bc3 Ka7 Qg7 Rb7 Qb1 Bh1 Qd4+ Ka8 Re6 Nc1 e2 Qe1 e3 Nf3 Ke4 Qd2 e1B Ne2 Kd5 Ng3 e2 Nh5 Bg3 Ne1+ Kc4 Ndf6 Qf2 Qa2+ Kd4 Qa5 Re3 Ng2 e1N Re7 Rg8 h8N Re2 Ng6 Rh8 N6h4 Nf3 Ne1 N3g5 Nhg2 Nf5 Ng7 Rh4 Ngh5 N5h6 Ra7 Nd8 Rg7 Ndf7 Rh7
1rrnB2b/Q2B2N1/3P3P/n2RPp1P/np2k2K/1Rqr4/5B2/Rb3B1B b - - 0 1 illegal: No possible last move
qq1Rr1Q1/3RBKP1/n2Pp3/1B4p1/b4B2/2p2r1k/P5rP/RB1BN2n b - - 0 1 legal: proof: c4 g5 d4 a5 f4 d5 fxg5 a4 cxd5 a3 e3 Bh6 d6 Na6 d5 Bf8 bxa3 Nf6 a4 Ng8 a5 Nb8 g4 h6 g6 Nc6 g5 Bg7 Nc3 Nb8 Ne4 Be5 g7 Bf6 g6 Bd4 Ng5 hxg5 exd4 Rh5 Qe2 Rh3 Qd1 Rh8 Kf2 Kd7 Ke3 f5 a6 b5 a7 c5 Bc4 f4+ Ke4 f3 Kf5 f2 Ba3 f1R+ Nf3 b4 Bc1 b3 Bf4 b2 Qb3 Rh3 Ne1 Nf6 g8B Rhf3 g7 Ng4 Kg6 b1Q+ Kf7 Nf2 Bh7 Rg1 Ba6 Qb2 Bb1 Rg2 Rf1 Bb7 Bb5+ Bc6 Qc4 Nh1 Rf2 Qa5 Rd2 Na6 Rd1 Rb8 a8B Re8 Rd3 Kd8 d7 Qbb4 Qb3 c4 Rd1 Qd6 Rd2 Kc7 d8B+ Kd7 Bb7 Qdc7 d6 c3 d5 e6 Be7 Qb8 Qc2 Qad8 Qh7 Qa8 Qg8 Qdb8 Be2 Ba4 Bc6+ Kc8 Bcb5 Kb7 d7 Kb6 d6 Kc5 Rc2 Kd5 d8R Ke4 Bd1 Kf5 Rb2+ Kg4 Rb4 Kh4 Rc4 Kg4 Rc7 Kh3 Rcd7
qRBBb1Q1/2qp1n2/4qk2/1K2b1p1/N3p2B/3P1NPq/PB1nP3/N2B4 b - - 2 3 legal: proof: b4 a5 b5 Ra6 Nc3 Nf6 Rb1 Ra8 Rb4 Ng8 Nb1 Ra7 Nf3 Ra6 Ng1 Ra8 c4 axb4 c5 b6 cxb6 Ra6 Na3 Ra7 Nb1 Ra8 h4 g5 f4 e5 h5 e4 Qb3 h6 Nh3 Rh7 Ng1 Rg7 Qa4 Rg6 hxg6 h5 Qc2 Ra3 Qd1 Rc3 Ba3 Rc5 Bc1 Re5 fxe5 Be7 Qb3 Bd6 Qd1 Bf8 e6 Ke7 d3 c5 Kd2 f5 b7 h4 b6 h3 g7 h2 Bb2 b3 Kc3 c4 Kb4 c3 Qc1 c2 Kb5 f4 Nd2 Na6 b8N f3 b7 f2 Ngf3 Nh6 g8B Nc5 Na6 Nf7 b8B Bb7 Bg3 Bg7 Bh4 Be5 g3 Bd5 Bh3 Kf6 e7 f1Q Be6 Qh3 Rd1 h1Q Qa1 Na4 Rb1 c1Q Nc5 Nb6 Na4 Qhe1 Nf1 Qc2 Ne3 Qcc7 Nc2 Qef1 Bc3 Nc4 Bb2 Bb7 Bd5 Qe6 Bc6 Qfh3 Bd5 Ba8 Bb7 Nd2 Bc8 Bd5 Rd1 Qh1 Qb1 Qhh3 Na1 Qa7 Rc1 Qa8 Rc6 Qc7 Rb6 Qd8 Rb8 Qc7 Bd4 b2 Qf1 b1Q+ Bb2 Qd8 Qc1 Qc2 Qd1 Qcc7 Qb3 Nh8 Bf7 Qeg4 Bg8 Bf7 Qc4 Be8 Bd5 Nf7 Bc6 Nh6 Qg8 Qe6 Bd5 Kf5 Bb3 Nf7 Bd1 Kf6 exd8B+
R5B1/p2KB1b1/nBB1Pp2/1pr2p1B/Nb3P2/1Q1n3k/1RPRb2P/6q1 b - - 0 1 legal: proof: g4 c5 d4 b5 b4 h5 gxh5 d6 a4 Nd7 a5 Rb8 d5 Qc7 bxc5 Qc6 dxc6 Rb6 axb6 Nb8 Nc3 Na6 Nd5 e6 Ne3 Kd8 Nf5 exf5 Bd2 Ke7 Bc1 Ke8 Kd2 Ke7 Ke3 Ke6 Kd4 g5 e4 d5 f4 g4 e5 f6 c7 g3 b7 g2 b8B Be7 h6 Bb7 c8B+ Kf7 c6 Kg6 c7 Nb4 h7 Bd6 Be2 Nh6 Bd7 Ng8 c8B Bc6 Be3 Bf8 Bd6 Nh6 Kc5 d4 Ra2 d3 Be7 d2 Kd6 Na6 Bb6 Bg7 Qb1 Ng4 Qb3 Kh5 Rb2 Bf3 Bc6 Kh4 Be6 Rc8 Bg8 Nf2 e6 Nd3 Kd7 d1Q h8R+ Bh5 Bef3 Qa1 Ne2 g1B Bg4 Bc5 Nc3 Bb4 Na4 Qg1 Be2 Kh3 Bef3 Qa1 Rd1 Qc1 Rd2 Qg1 Bh7 Bg4 Re8 Bh5 Bg8 Bg4 Bd1 Be2 Rd8 Bf1 Bh5 Be2 Be4 Rc3 Ra8 Rc5 Bc6
2N3Q1/2Pbb3/1RBP1Nr1/2RPK1p1/2R4k/2n2N1p/1p1PN1p1/1Nrrn3 b - - 0 1 illegal: No proof kernel
R7/1KN1n3/nP1B1r1p/2N3N1/Pb1P1rRq/q3k1QP/NRb1N2r/3q3n b - - 0 1 legal: proof: e4 d5 exd5 b5 c4 g5 cxb5 Bf5 f4 Bc8 fxg5 a6 b4 Bh3 b6 Nc6 b5 Bf5 b7 Nb8 b6 Bc8 Bb5+ axb5 Ke2 Kd7 Kd3 Kd6 Kd4 c5+ Ke4 e5 g4 b4 a4 c4 d4 c3 g6 b3 g7 c2 g5 b2 g6 Na6 b8N Qh4+ Qg4 Ne7 Bf4 c1Q Nc3 b1R g8R Qa3 g7 Rf1 Ra2 f6 Nge2 f5+ Ke3 Rf2 Rg1 h6 h3 Rh2 Bg3 f4+ Ke4 f3 Rb2 f2 Na2 f1N Nd7 Rh7 Rh8 Bb7 g8N Rf7 Nc5 Rf6 Bf4 Bc6 Qg5 Bb5 Rg4 Bd3+ Kf3 Ng3 Qg7 Rf5 Nf6 Nh1 Nh7 Rf6 Ng5 Rc8 Qg6 Bc2+ Qd3 Rc6 Ke3 Rf5 Bg3 Rf4 Qc3 Bg7 Ra8 Bf8 Qb3 Bd1 Kd3 e4+ Kc4 Bc2 Qf3 e3 Kb5 Rf2 Bh2 Rg2 Qg3 Rf2 Ng1 e2 Ka5 e1Q+ Kb5 Nb8 Ne2 Qd1 Ka5 Nd7 Ka6 Nb8+ Kb7 Na6 Nce6 Rc3 Nc7 Rcf3 Bg1 Rh2 Bf2 Kd7 d6 Rf6 Be1 R3f5 Bb4 Rf4 Ka7 Kc6 d7 Rf3 Bd6 R3f4 Nce6 Kd5 d8N Kc4 Kb7 Kd5 Nc7+ Kc4 Qe1 Kd3 Nde6 Ke3 Nc5 Bg7 Nce4 Ng8 Be5 Bf8 Qg1+ Rhf2 Qh2 Bb4 Nc5 Ne7 Bd6 Rg2 Qg1+ Rgf2 Qe1 Rh2 Qg3+
3nn3/KB1q4/3b2rq/P1P1Bb2/2BP3N/B1pNb1q1/bRPQk3/4B1rN b - - 0 1 illegal: No proof kernel
N4Nn1/k1n1Qp1N/3nP2r/1N6/6Bn/1bBP1PPN/q1b1B1r1/4RKbb b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 g5 h4 e5 hxg5 e4 d3 Bh3 Kd2 Bc8 Ra2 Bh6 c4 e3+ Kc2 Bf8 cxd5 Bh3 Kb3 Bd7 Rd2 exd2 Kc2 Bc8 e4 Kd7 b6 c5 b5 a5 f3 h5 g6 h4 b7 Kc7 d6+ Kb6 d7 h3 e5 h2 g3 a4 g7 c4 Na3 c3 Be2 Ka7 Bb2 Bc5 Qe1 Qa5 Kd1 Na6 b8N Rh6 d8N Nc7 Na6 Be6 Nh3 Bg1 Ba1 Bc4 Ne6 Rb8 Neg5 Bb3+ Nc2 a3 Nh7 a2 b6+ Ka8 b7+ Ka7 Bb2 a1N e6 Rc8 b8N Qa2 Nd7 Ra8 Ndf8 Rb8 Bf1 Rb6 Ke2 Rb8 Qb1 d1B+ Ke1 Rb5 Na3 c2 Be5 c1N Be2 Nc2+ Kf1 Ne1 Bc3 Ng2 Qb2 Bbc2 Qb4 Nh4 Qe7 Rb2 Nb5+ Ka8 Nb4 Nb3 Nd5 Nd4 Nb6+ Kb7 Na8 Ndf5 Be1 Nd6 Bc3 Nf6 g8B Bb3 N7g5 Bdc2 Bh7 Ng8 Bf5 Kb8 Na3 Ka7 Bg4 Bd4 Rg1 h1B Ngh7 Bg7 Kf2 Bh8 Rd1 Bd4+ Kf1 Bg1 Re1 Bb1 Bd1 Rg2 Be2 B1c2 Nb5+
5rb1/1N1qb2r/Pp5P/1P1n1N2/n3N2Q/1k1pRKnb/2P1BBr1/1N1BN3 b - - 0 1 illegal: Other
3kR1bn/1p1B1b2/4BqN1/NK2bP2/rP5P/2r1pB2/PnBqQ2B/5q1N b - - 0 1 illegal: No proof kernel
2kR1Nbr/P1rR3B/N2p3P/1RPRq3/1r5N/bpb2n1K/3P1r2/1R1n3Q b - - 0 1 illegal: No possible last move, all moves rejected
qb2Q3/R1q1BqpB/2qpn1P1/P3R2r/1KB1R1r1/1Rn5/NP1P4/1Rq4k b - - 0 1 illegal: Other
1br1n1qq/1RR3rP/2R5/B1R2pPk/N1R2rbn/p1Q2P1p/3K1P2/1N2N3 b - - 0 1 illegal: No proof kernel
nK3N2/rQ2p2R/p1N3RN/kp1RPB2/4qP2/1R2P3/bP1Rq2r/r2bn3 b - - 0 2 illegal: No proof kernel
3N4/NqpN1bK1/1P1B3p/rp1kP3/n1P1q1Nn/3B3Q/7P/BRrbNn2 b - - 0 2 illegal: No possible last move, all moves rejected
2N1N3/n6N/p1q2p1n/1b3pN1/kB2rPR1/1rbn3P/P1PRN3/1QRn1K2 b - - 0 2 legal: proof: g4 h5 gxh5 c5 b4 d6 bxc5 e6 cxd6 Ne7 Bh3 Ng8 Bf5 exf5 f4 Kd7 d4 Kc6 e4 Kb5 h3 g5 h6 f6 e5 a6 d5 g4 e6 g3 e7 g2 e8N Bd7 h7 Qc8 Ne2 g1N Ba3 Qc6 Nd2 Nf3+ Kf1 Ne5 Nc4 Nh6 Nb6 Nd3 Nc8 Ka4 Qb1 b5 Rg1 b4 Rg4 b3 Bb4 Rg8 h8N b2 Nf7 Ra7 Ng5 Rb7 Be1 Rb3 Bb4 Rg7 Nh7 Re7 Rh4 Re4 Rg4 Be6 d7 Bd6 d8N Bd7 Bc5 Be5 d6 Bd4 Ne6 Bc3 Qe1 b1N Bb4 Qc5 Qd1 Bb5 d7 Nc6 d8R Na7 Neg5 Qc6 Qc1 Bd4 Rd7 Nc3 Qb1 Nd1 Rd6 Bc3 Rd5 Ne1 Rd2 Nd3 Qb2 Qd5 Rc1 Qc6 Qb1
Q3R2b/1N1BPq2/k2p4/N1rn1NPb/1RP1p1pp/3R2bP/N2K1n1r/4N3 b - - 0 1 illegal: No proof kernel
1RQ4q/nR1npR2/1P1q1p2/6rN/4B1PP/2prBRp1/2P2Rb1/k1b1B1K1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 axb5 d5 Nc3 d4 Ne4 d3 fxg5 h4 Ng3 hxg3 exd3 Nd7 d4 Nb8 d5 Qd6 Ra3 Qd7 Ra1 Qd8 d4 Kd7 h4 Kd6 b4 c5 g6 a5 b6 c4 b7 a4 b5 f6 g7 a3 Bd3 a2 Kf1 Ra5 Rb1 a1Q Ne2 Bd7 Kg1 Na6 b8R Nc7 Rh2 Qe8 Be3 Nh6 g8R Qa3 Nf4 Bc6 Rf2 Nf7 Be4 Bh6 Rf8 Ne5 Rf7 Nd7 Nh5 Qc8 Qf3 Rd8 Qf5 Qd3 Rbf1 c3 Rb7 Bf4 Bd2 Be3 Be1 Bc1 b6 Qa8 Rf3 Nb5 R1f2 Nc5 Qc8 Na7 Bg6 Rb5 Be4 Nd7 Rf4 Rb3 Bf5 Rg8 Qe8 Rb4 Bg6 Nb8 Rf5 Bb5 R5f3 Rc4 Bh7 Rg5 Be4 Rc7 Qg8 Qd1 Qf8 Bf1 Qg8 Bg2 Qf8 Kd7 d6 Ke6 d7 Kd6 d8R+ Rd7 d5 Kc5 d6 Kb4 Qh8 Ka3 Rg8 Rd8 d7 Ka2 Re8 Ka1 Qg8 Rc8 d8B Qd4 Bc7 Rd8 Bd6 Qb4 Bf4 Rd3 Rd8 Qd6 Be3 Nd7 Qe8 Nb8 Qc6 Nd7 Rg8 Qf8 Qc4 Qh6 Rgb8 Qh8 Qc8
N6R/p2r2pK/B1Rp1k2/7p/N2PRr1p/P3N2N/1qp1P1Pn/bb2N1Q1 b - - 0 3 illegal: Other
1q1NBQr1/3n3Q/2P1N1b1/r1k4N/rr5r/NRn1P1N1/P2b1R1P/6nK b - - 0 1 illegal: No possible last move
R1RRk3/R2N2rb/1P2q3/1q1b2P1/2P3Qq/1bKn1N2/2Q2b1P/1rR1B1b1 b - - 0 1 illegal: No possible last move, all moves rejected
R2rr3/R1BQ1BK1/2P1Q1nN/b3P1P1/3R4/R3rqk1/b3P1r1/1q2b1Rq b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 g5 f4 c5 fxe5 Bg7 dxc5 Bh6 Nc3 Bf8 g4 Nh6 h4 Nf5 Nd5 Na6 Nf4 gxf4 g5 Ne7 g6 Ng8 Ra3 Nc7 Ra5 Ne6 Ra1 Ng5 hxg5 Bg7 Bg2 Bh6 Bf1 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 c4 Kg4 b4 f5 c6 a5 g7 h5 b6 d5 b5 h4 c5 h3 b7 a4 b8Q a3 b6 f3 b7 h2 c7 f2 c6 a2 Rb1 a1B+ Bb2 f4 Nf3 Ra3 Bh3+ Kg3 Bc3 f1Q Nh4 f3 Rb3 f2 Be6 Ne7 g8R Ng6 Rg7 Bb4 Bf7 Be6 c8R Qf8 Rd8 Ba5 Qc8 Qg1 b8R f1R+ Kd3 d4 Ke4 d3 Rd4 d2 Ra8 Rf2 Bb4+ Bc3 Bd6 Qe1 Rg1+ Rg2 Bc7 h1Q Rh7 Bd5+ Kf5 Rg8 Kf6 Bc4 Rb2 Ba2 Qe6 Bcb4 Rc2 Re3 Rc3 Rh8 Ra3 Rg8 Qc1 d1R Qd2 Rh8 Qd3 Qf1+ Qdf5 Be1 Qd7 Qb8 Kg7 Qb1 Qfe6 Re8 Nf5+ Kf2 Nh6 Kg3 Rh8 Qf3 Rf8 Re7 Rfb8 Re8 Rb7 Rd2 Rba7 Rdd3 Rc4 Rd5 Rd4 Rd6 Qde7 Rdd8 Q7d7
5bq1/1Q1nqkqN/2PQqQ2/1b4Pr/2N2Q1R/K1bR1P2/1Q3rbP/4B3 b - - 0 1 illegal: No possible last move, all moves rejected
1n3Q1Q/1N1P4/b2B2nB/r2B2Pq/nK2b1P1/pb2RPrB/1qN5/1kB5 b - - 0 1 legal: proof: a4 d5 h4 b5 axb5 c5 b4 f5 d4 g5 dxc5 d4 hxg5 d3 e3 Bg7 Ra6 Kf8 Re6 Ke8 Re4 Bd4 exd4 fxe4 Kd2 Kd7 Kc3 Ke6 g3 Kd5 c6 a5 c7 e5 Ne2 h5 Bg2 h4 Qf1 a4 Nd2 h3 Nc4 d2 Nd6 Nd7 b6 d1B b5 h2 b7 a3 b8B Qf6 b6 Ra5 b7 Rh3 Kb4 Ne7 g4 Ng6 c4+ Ke6 c5 Kd5 c6 Bb3 Ba7 Rg3 b8B Ba6 c8Q Qh8 c7 Qh5 Rg1 h1B Bh3 e3 Qh8 e4 c8B Bg2 Bc7 Nb8 Nb7 Bf3 Bc5 Bg2 Rh1 Bf3 Ng1 e2 Bf8 e1N Ne2 e3 Bh6 Ke4 d5 Kd3 d6 Kc2 Be6 Be4 d7 Kb1 Nd4 e2 Bd6 Nd3+ Kc3 Bd1 Bd5 Nc5+ Kb4 Bb3 Rg1 Re3 Rg3 Na4 Rf3 Rc3 Rf4 Rg3 Rf3 Ka1 Re3 e1Q+ Bd2 Qb1 Bc1 Qa2 Nc2+ Kb1 Qe2 Qb2 Qf3 Bb5 Qff8 Ba6 f3
2B2BR1/rPq1qP2/1Q1BPQPn/1pB4q/N4q1n/3b4/1B1kb1r1/K3N3 b - - 0 1 illegal: No proof kernel
2bqb3/2BP4/1QB1PP2/4bqp1/rB2bQ2/B1RPN3/n2BR2K/k2r3b b - - 0 1 illegal: No proof kernel
1B1R4/1N1N3q/1nQ1K1p1/b4r2/1P2R1qQ/1P2q1b1/1nPqPN2/1N1k1b1N b - - 0 1 legal: proof: d4 c5 dxc5 h5 f4 e5 a3 a5 fxe5 b5 g4 f5 Bh3 b4 axb4 f4 Bf1 Ra6 Bg2 Rf6 Bf3 Rf5 gxf5 Ne7 Bg4 hxg4 Be3 Ng8 Bd2 Rh7 Bc1 Rh8 Kf2 Ke7 h4 d5 f6+ Ke6 h5 Kf5 h6 Ke4 c6 a4 f7 f3 Kg3 f2 e6 f1Q c7 g6 b3 a3 e7 d4 e8N d3 h7 a2 Bh6 d2 Qe1 d1Q Bg5 Qg2+ Kh4 g3 Qf1 Q1d7 Na3 Na6 Qd1 Nf6 Nh3 Nc5 Bf4 Bd6 Kg5 Nd3 f8N Nb2 Ng7 Be5 Rc1 a1B Qd6 Nd5+ Qf6 Q8e7 Nf5 Nb6 Rcd1 Qd2 Nd7 Rf8 h8Q Qh7 Nb1 Qf3 Qe6 g2 Ng3+ Kd4 Qe8 g1Q Nf2 Qe3 Rh4 Bb7 c8N Bg2 Ngh1 Bf1+ Rg4 Rf6 Qe6 Bc7 Nd6 Qg2 Nb7 Qge4 Na3 Kc3 Qc6+ Qc4 Qf8 Rf7 Qh6 Rf6 Kh4 Bd8 Bb8 Bc7 Rd4 Rf5 Re4 Qe1 Kg4 Nc8 Rd6 Nd3 Nf8 Kd2 Rf4 Be5 Qh4 Ba5 Rd8 Nb6 Nd7 Nb2 Nb1+ Kc1 Rd4 Bg3 Rf4 Q1d2 Rd4 Rf4+ Kg5 Qce6 Re4 Rf3+ Bf4 Qh3 Kf6 Qg4 Nd3+ Kd1 Ke5 Qg5+ Ke6 Qgh5 Be5 Rf5 Bb8 Qg4 Ndf2+
1Nb1RN2/K3R1rp/Q2PqPr1/6b1/3N3P/1Qk5/P1r1b2B/Nq2qN1q b - - 0 1 legal: proof: d4 a5 b4 d5 bxa5 Kd7 e4 Nh6 c4 Na6 cxd5 Nc5 d6 Kc6 d7 Na6 d5+ Kc5 d6 Ng8 Ne2 Kb5 Ng1+ Kc6 g4 f5 f4 Nh6 Bd3 Nb4 Bc2 Nd5 exd5+ Kc5 Be4 fxe4 f5 Kc4 Bd2 Kd4 Bg5+ Ke5 Bc1 Kf6 g5+ Kf7 Qd2 Ng4 Qd1 Nf6 gxf6 Ra7 Be3 Ra6 Bc1 Ra8 Kf2 b5 Ke3 c5 h4 g5 a6 e5 a7 g4 Na3 c4 Qd4 c3 Qd2 b4 Bb2 c2 Qf2 c1Q+ Qd2 b3 Nc2 g3 Nf3 g2 Re1 g1R Nh2 Be7 Nf1 Qb1 Qb4 Qe8 Bc1 b2 Qb3 Rb8 a8Q Rg7 Qa6 Rhg8 Bd2 Rb7 Re2 Rc7 d8N+ Kf8 Ne6+ Kf7 d7 Rc5 Ne1 Rc2 d6 Bd8 Nd4+ Qe6 Bc3 Rg6 Bd2 R8g7 Bc3 Kf8 f7 Bg5+ Kf2 e3+ Kf3 Rh6 d8N Rhg6 N8c6 e4+ Kg4 Rg8 Nb8 Kg7 f8N Kf6 Kg3 Ke5 f6 R8g7 Bd2 Rc4 Nec2 Rcc7 Re1 e2 Kf2 e3+ Kf3 Qd1 Rc1 b1B Na1 Bd3 Rc4 Qc2 Rb4 Qb1 Rb7 Rc2 Re7 Bc4 Bc1 Kd5 Bd2 Kc5 Bc3 Qh3+ Ke4 Qh1+ Nf3 Bb5 Be5 Bc4 Bh2 Bb5 Qe6 Kb4 Kd5 Kc3 Kc5 Bd3 Nd4 Bc4 Rd1 e1Q Rc1 Qe2 Re1 Qg4 Qg8 e2 Qe6 Bb5 Kb6 Qh3 Qf7 Qe6 Ka7 Bd3 Rd1 e1Q Qg8 Qf2 Re1 Bc4 Re4 Be2 Qf7 Qfe1 Re8 Qg4 R4e7 Qh3 Qd5 Qe6 Qb3+
R1b1n3/p1k2PPq/5Nb1/3q2p1/NQ5P/P2R4/N2KNN1r/2nBr1Qr b - - 0 1 legal: proof: f4 d5 b4 g5 fxg5 f5 c4 c5 bxc5 f4 cxd5 f3 e3 Bf5 Bb5+ Bd7 Bf1 Bc8 g4 h6 g6 Qb6 g5 Nd7 Bb2 Qc7 Be5 Bg7 Bf4 Be5 g7 Qd8 g6 Nb8 Bg5 Bf4 exf4 hxg5 d4 Kd7 c6+ Kd6 f5 e5 c7 b5 f6 f2+ Kd2 b4 f7 e4 a3 b3 Ne2 b2 Nbc3 b1Q Na2 Bg4 c8N+ Kc7 d6+ Kd7 d5 Qf6 Nb6+ Kd8 d7 Qd6 Na4 Nh6 g8N Nc6 g7 Na5 Nf6 Kc7 d8N Ng8 Nb7 Bc8 Nbc5 Rh7 Bg2 f1B Bf3 Rh5 Nd3 e3+ Ke1 Rh6 Nf2 Qh7 Qb3 Qc6 Qb4 Nb3 Rd1 Nc1 Rd3 Bfh3 Kd1 Bhf5 h3 Bg6 d6+ Kd8 d7 Qd5 Bh5 Kc7 Bg4 Rb8 Rh2 Rb5 Ke1 Rc5 Bh5 Rc2 d8Q+ Kc6 Qe8+ Kc7 Qe6 Rd2 Qeg4 Rc2 Qg1 Rb2 Ng3 e2 Rh1 Rb1 Kd2 e1R Bd1 Ra1 Ne2 Rb1 N6e4 Nf6 Rh2 Ne8 Nf6 Rh4 Rh1 Rg4 h4 Rg2 Rh3 Rh2 Re3 Qf3 Rd8 Qd5+ Rd3 Rb3 Rd4 Rbh3 Rd3 Rh1 Bb3 R3h2 Bd1 Bcf5 Rb8 Bc8 Ra8
1n3n1k/PR1q1r2/Pq3R2/2bN2Rn/Pp2RQ1p/R2KN2r/3Q1B1P/7q b - - 0 1 illegal: No proof kernel
4rR2/1Q2nQ2/P1P1q2P/n4Brn/2QPr2R/5QB1/NKbkQ1pp/n7 b - - 0 1 illegal: No proof kernel
1qk5/1R4p1/3bP3/1Nn2NPB/QQ1bN2r/2P1p3/KbrNNpnP/6R1 b - - 0 1 legal: proof: a4 d5 e4 b5 axb5 e5 d4 c5 exd5 h5 dxc5 e4 g4 h4 f3 Bf5 Bf4 e3 Bg3 Be4 fxe4 hxg3 b4 Kd7 g5 f5 c6+ Kc7 d6+ Kc8 e5 a5 b6 g2 b5 a4 c3 a3 e6 a2 c7 f4 d7+ Kb7 c8N f3 Ne7 Nf6 Nd2 Qc8 Rb1 a1B Be2 Rh5 Nf5 Qc4 d8N+ Kc8 b7+ Kc7 Qa4 Nd5 Kd1 Bb2 Kc2 Bd6 Nc6 Nd7 b8N Qb4 b6+ Kc8 Na6 Nf4 Ncd4 Rh4 Nb5 Nc5 Bd1 Be5 Ne2 Bd4 Re1 g1B b7+ Kd8 Rf1 Bf2 Re1 Ng2 Rg1 Nd3 Nc5 Bg3 Nce4 f2 Na3 Qb6 Nb5 Bd6 Kb3 Nc5+ Ka2 Qc7 b8Q+ Qc8 Qb7 Qb8 Nf4 Ra6 Bh5 Ra7 Qe7+ Kc8 Ne2 Ba1 Rb3 Bb2 Na3 Ra5 Rb6 Rb5 Rb7 Rb3 Nb5 Ra3+ Kb1 Ra2 Qc2 Bc1 Nfg3 Na4 Ra7 Bc7 Qb4 Nc5 Qca4 Bd6 Rb7 Rc2 Nf5 Bb2 Ka2
2k1Q3/p5P1/b3q3/pB1Q2N1/2KN1Pr1/1QPPrn2/p2bQ1n1/1RQR3n b - - 0 1 illegal: Other
3BQk1r/N4PRn/2bpPr1q/K7/6PP/3q1qnp/Q2p1QQQ/2R1N3 b - - 0 1 illegal: No proof kernel
KN1B2NQ/b1B4p/n1B1Q1P1/p2RB1b1/P5q1/6nB/3pPb1P/2q2kq1 b - - 1 2 illegal: No possible last move
5q1b/Q1n1p2Q/kpQN1Qn1/P5p1/BQ1P4/1K2bbPb/R3P3/2b2NB1 b - - 0 2 legal: proof: g4 a5 b4 f5 c4 d5 cxd5 f4 bxa5 Ra6 Bh3 Rh6 Bg2 Rh3 Bf1 Rg3 fxg3 Qd6 Kf2 Qd7 Ke1 Qd8 a4 h5 Ra2 g5 Ra3 h4 Rf3 h3 Rf2 Rh7 Rg2 hxg2 Bb2 Rf7 Bc1 Rf5 gxf5 Bd7 Nf3 Be6 Ng1 Bc8 d4 Kd7 Kd2 c5 Kc2 Kc7 h4 c4 a6 Kb6 d6 c3 f6 f3 d7 f2 f7 Nh6 h5 Ng8 a7 Bh6 f8Q Qc7 d8Q Nf6 a8Q Bf5+ Kb3 c2 a5+ Kb5 Na3+ Kc6 Nf3 g1B Nd2 Nfd7 Bg2+ Be4 Nac4 Kb5 Qe1 f1B Qf6 b6 Qac6+ Ka6 Nd6 Bg7 h6 Qa7 h7 Qc7 h8Q Nf8 Qh7 Ng6 Bf3 Bh3 Nf1 Qa7 Qb4 Qa8 Be3 c1B Bg4 Bf3 Bd7 Bh8 Be8 Nd7 Qb8 Ndf8 Bf2 Ne6 Be3 Bh2 Bg1 Nc7 Qd5 Qb7 Ba4 Qc8 Qc6 Qf8 Be3 Qe8 Nd2 Ba3 Ra1 Bg1 Ra2 Bc1 Nf1 Bf2 Qc2 Qf8 Qc6 Be1 Bf2 Bed2 Bg1 Be3 Qa7+
N1r4b/pQBr1R1Q/1pp2P2/5R2/1Pn1k3/p2q1q2/1PQ2q1P/Q1KN2Q1 b - - 0 1 illegal: Other
1QN1r2Q/3bbKbq/3p2RR/1BP4q/2QP4/1Q1NPPQ1/n1nnq3/r4k2 b - - 0 1 illegal: No proof kernel
B1Q1Qn2/3p4/Pn3BB1/4b2b/RR1bPr1k/P2q2N1/q1qP2K1/1BrrB3 b - - 0 1 legal: proof: f4 a5 b4 e5 bxa5 h5 fxe5 h4 Nc3 c6 Nb5 h3 gxh3 cxb5 h4 b4 h5 Rh7 Nf3 Rh6 Ng1 Rh8 Kf2 Ke7 e4 g5 h4 b5 c4 f5 e6 Kf6 h6 g4 a6 b3 h5 Kg5 h7 b2 e7 b1R e8B g3+ Kg2 b4 h6 b3 Bh5 b2 Bhe2 f4 Kf3 g2 Rh3 Nc6 Qc2 Nge7 c5 Bb7 Bc4 Ng6 Bf7 Na7 c6 Rc8 c7 Bd6 Ne2 g1B Kg2 Bd5 Ng3 Bd4 Bd3 Rf8 h8Q B6e5 h7 Qe8 Qg8 Qe6 h8B Kg4 Bf6 f3+ Kh1 f2 Bh4 Bb3 Kg2 Bc4 Be8 Rf4 Qh8 Nf8 Bg6 Bb5 Qg8 Qc4 Qf7 Qc5 Qe8 Ba4 Qc4 Bd1 Qg8 Qc2 Rh1 Ra8 c8B Be2 Bb7 Rc8 Ba8 f1Q+ Kh2 Qf3 Qh8 Qe3 Kg2 Rc4 Qg8 Nc8 Rf1 Rc3 Qc4 Nb6 Qcc8 Rf7 Rf6 Bd1 Rc6 Rf4 Rc4 Be2 a3 Bd1 Ra4 Rc5 Bc4 Qed3 Ba2 Rc6 Ne2 Rc3 Be1 Rc5 Ng3 Kh4 Bb3 Bh5 Ra2 Qcc4 Bc2 Ra1 Bb1 Qe6 Bc2 b1Q Rb2 Qea2 Rbb4 Qbb3 Bb2 Rd1 Bb1 Rcc1 Ba1 Bg1 Bd4 Qbc2 Bc5 Bgd4 Bd6 Bb2 Bc7 Bed4 Be5 Ba1 Bg7 Be5 Bh8 Bad4 Bf6+
1n1nb1nk/5QNB/1R6/r1Q2Q1p/R1P2PnK/1NQn1bQP/q1P3r1/6b1 b - - 0 1 legal: proof: a4 c5 e4 g5 d3 b5 axb5 c4 dxc4 f5 Bf4 g4 Kd2 g3 Be3 Bh6 exf5 Bg7 f3 Bf8 Bf2 gxf2 Ke2 Nc6 b4 Kf7 g4 Kg7 f4 e5 Kf3 d5 Kg3 a5 g5 e4 b6 e3 b5 d4 b7 d3 b8Q e2 g6 e1N b6 d2 b7 a4 Kh3 a3 Qf3 d1B Qg3 a2 Qe5+ Nf6 b8Q Bc5 Qb5 Nb8 Qec3 Bf3 Ne2 Qa5 Nd4 Bd7 Nd2 Be8 Bd3 f1N Ne6+ Kg8 g7 Ne3 Be4 Nd3 Rhb1 Neg4 Qc6 h6 Rb6 Bg1 Nb3 Qa4 Qc5 Ra5 Qgf2 h5 Kh4 Ne3 h3 Rh6 Rb5 Rg6 Rb6 Rg2 Qfe1 Neg4 Qg3 Nb4 Bd3 N4c6 Be4 Kh7 Bd3 Nd8 g8Q+ Kh6 Qgf8+ Kh7 Ng7 Ng8 f6+ Kh8 f7 Qa3 Qfe7 Qb2 f8Q Qb1 Bh7 Qb2 Re1 a1N Nc1 Qb1 Qff5 Nb3 Qef7 Qa1 Qd6 Nc5 Nb3 Nd3 Qdc5 Qa3 Ra1 Qb2 Ra3 Qa2 Ra4
n5Q1/2N2B2/n2b1r1B/Rp3bQ1/BPB1kBr1/1P1rP1b1/PK3nqR/6n1 b - - 0 1 illegal: No proof kernel
1rq3k1/2Nqrp1B/1QQ1NP2/2Q1P2P/Rb2n1Q1/2R2K2/Pr1Q2r1/1r3n1b b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra7 g4 Ra8 gxh5 e5 d4 Rh7 d6 Na6 d5 Rh8 Be3 Nb8 Bd4 exd4 f4 c5 Kf2 b5 h4 g5 e4 b4 f5 g4 f6 c4 e5 c3 h6 c2 h7 c1R a6 b3 a7 d3 h5 d2 Nc3 b2 Nge2 b1R Nd4 g3+ Kf3 g2 Ncb5 g1R Rh4 Nh6 Ne6 Nf5 Bd3 Rc7 Ra4 Ne3 Bg6 Bb7 Qc1 Nf1 Qc5 Rg8 h8Q Re7 Qg7 Rb2 Rc1 Nd7 Rc3 Rb8 a8Q Qc8 Qa6 Ba8 Qac6 Rg2 Bf5 Rb1 Qg4 Rg5 Bg6 d1Q+ Kf4 Qd4+ Kf3 Rgb2 Nf4 Bh6 Nc7+ Kf8 Nfe6+ Kg8 Qh3 Rgg2 Qg4 Nb6 d7 Bf8 d8Q Nc4 d6 Qd2 d7 Nd6 Na6 Ne4 Qdb6 Bb7 d8Q Qdd7 Nac7 Re8 Qe3 Bb4 Qe7 Ba8 Q7c5 Re7 Qd2 Ng5+ Kf4 Rg3 Qc6b5 Bh1 Qcc6 Rg2 Q5c5 Ne4 Kf3 Qd4 Rc2 Qdd8 Rc3 Qdd7 Bh7+
2n5/r3n3/Q5Q1/2Q1bqQP/bPpR1r1N/2PN3Q/k2n2RP/n3qqBK b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 f5 e4 Nh6 e6 Rh7 e5 Rh8 Bg2 Ng8 Be4 fxe4 Kf1 Ke7 Kg2 d5 f4 g5 b4 c5 f5 a5 c3 e3 b6 a4 b7 e2 Bf4 e1Q Ra3 g4 Qd3 g3 Qc4 d4 Ra1 d3 Be3 d2 Ra3 d1Q Nd2 Nd7 b8Q Nb6 Ndf3 Bd7 Qc8 Ra7 Nh4 Bg7 Nh3 Qf8 Ra2 a3 Nf4 Ba4 Q4a6 c4 Rc2 a2 Nd3 a1N Bg1 Rh6 Rd2 Rf6 Qc5+ Ke8 e7 Kd7 Qca5 Kc6 e6 Qc8 e8Q+ Qd7 Re2 Ne7 Qg6 Rf7 Qg4 Be5 f6 Rf8 f7 Qc1 Kf3 g2 Qh3 Qd5+ Re4 Qb5 Rd4 Qb1 Bf2 g1N+ Kg2 Nf3 Rg1 Nd2 Kh1 Qf1 Be3 Qbe1 Bf2 Bc7 Be3 Qbf5 Qe5 Bd6 Qf4 Be5 Qg5 Rd8 f8Q Re8 Qc8+ Kb5 Qff6 Rf8 Qfh6 Bd1 Qc5+ Ka4 Qhf6 Kb3 Bf2 Ng6 e7 Nc8 e8Q Nge7 Qeg6 Ka2 Qa6+ Ba4 Be3 Qfe2 Rf1 Rf6 Bg1 Rf7 Rf2 Q2f1 Qgg2 Qe6 Q2g3 Rf4 Q3g5 Qf5 Rg2
5b2/4bbPK/k1prbr2/R1BRqnP1/2P1Q1n1/N6R/R3qPRq/2Q2B2 b - - 0 1 legal: proof: e4 b5 d4 f5 a4 e5 axb5 g5 h4 Ke7 hxg5 Ke8 Nd2 Qf6 dxe5 Bh6 e6 Bf8 e5 Qd8 Ne4 fxe4 Kd2 h5 Ke3 a5 Kf4 d5 Kf5 a4 Kg6 a3 g4 a2 b4 h4 c4 e3 b6 c6 e7 Kd7 e8R e2 b7 Kc7 e6 Kb6 b5 e1B e7 h3 Qc2 h2 Nf3 d4 Qd2 d3 Ba3 Be6 Qc1 d2 Nd4 d1B Nc2 Qd2 Rd8 Nd7 e8Q Ndf6 Rd5 Rd8 b8R+ Ka5 b6+ Ka6 b7 Rd6 Qe7 Qe2 Bc5 Bb4 Na3 Nh6 Qh7 Be7 Rg8 Nf5 b8R Bc2 Rg7 Rf8 Rb5 Bd3 Rb1 a1Q Rb2 Bc2 Ra2 Qae5 Qh4 Nd7 Rg8 Rf6+ Kh7 Bb1 g6 Bf7 Rg1 h1Q g7 Qhh2 g5 Be4 Rd8 Bh1 Rd3 Bhd5 Rg2 Bde6 Re3 Qe4 Rc3 Ne5 Rh3 Qd4 Qe4 Ng4 Rd7 Qde5 Rdb7 Rd8 Rd7 Bf8 Rd5 Rd7 Bb6 Bbe7 Bc5 Rd6 Ra5+
n2k3B/2r3Bb/1Q1rnB1R/1p1P1PN1/5rq1/1PPK4/1q1B1rQb/1B1R3n b - - 0 1 illegal: No proof kernel
2N3Kn/1B4Pn/n2P1R2/1PprBp2/Q1r2P2/r1b1R3/bQ1q3b/2kB2BB b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 e6 d4 Qd6 Nc3 Qe7 d6 Qd8 Nd5 Nc6 Nf4 Nb8 d5 e5 Ne6 Bg7 Nd4 exd4 Qc2 Bh6 Qd1 Bf8 Kd2 Kd7 Kd3 f5 Kc4 a5 g4 h5 b4 c5 f4 d3 e4 d2 g6 a4 g7 h4 b6 h3 g5 h2 b7 a3 b5 a2 e5 Nh6 g8B Rh7 g6 Qe7 e6+ Kd8 d7 Kc7 g7 Kd6 d8Q+ Qd7 e7 Na6 e8B Be7 Bg2 Bh4 Ne2 Nf7 Re1 h1N Nc3 Bg3 Qa4 d1R Re3 Nf2 Bh1 Nh8 Bh5 Bh2 Bgf7 Rd2 Bd1 Ne4 Bfh5 Rh6 B5f3 Re6 Qf6 Ng5 Bfg2 Nh7 Ne4+ Kc7 b8B+ Kb6 Nd6 Re4+ Qd4 Qd8 Bb2 Be6 Bc3 Rd3 Be1 Ra7 Bf2 Ra3 Bg1 Rd7 Rb1 a1B Nc8+ Kb7 Bgf3 Bc3 Ra1 Bg8 Be5 Rd6 Ne7 Kb6 Ra2 Qd7 Rg2 Bf7 Rg6 Bg8 Rf6 Be6 Qb3 Ka5 Qb2 Bg8 Nc8 Bf7 Bde2 Ka4 Bd1+ Rb3 Qb1 Ka3 Qc1+ Ka2 Qa3+ Kb1 Qa4 Qd8 Bfg2 Kc1 Bgf3 Re6 d6 Ra3 Kd5 Qa5 Kc6 Re8 Kd7 Ba2 Qdb4 Rd4 Bb7 Rd5 Qbb3 Rf8 Ke6 Re8+ Ne7 Ra8 Nc8 Qb4 Ke7 Qd4 Qbb4 Qd2 Qd4 Rb3 Ke6 Rb4 Ke7 Rc4 Ke6 Ng6 Kf7 Nh8+ Kg8 Nb8 Qb4 Ra3 Qa4 Na6 Qd3 Ba5 Qdb3 Bc3 Qb2+
N4Q2/rRQqb1NK/PP4p1/1Q2n2R/pPb3n1/Q3Q3/r1k3Pq/4qB1n b - - 0 1 illegal: No proof kernel
3Q4/b1pb1PB1/1rk2R1R/2P2p2/b4r2/Rn1BN1Kb/1PQPr2n/Rq4R1 b - - 0 1 illegal: Other
1B3Qr1/2N1Q1n1/1k1p1P1N/1q4bn/2pP1QbQ/2PPRQpr/1nK4b/7B b - - 0 2 legal: proof: b4 h5 g4 f5 gxf5 b5 d4 c6 a4 Qc7 axb5 Qg3 Ra3 Qg5 Rg3 Qe3 Rg4 Qd3 exd3 hxg4 Kd2 Kd8 f4 Kc7 h4 a5 h5 g5 h6 e5 c3 c5 h7 a4 f6 a3 f5 e4 f7 c4 f6 g3 Qb3 g2 Ne2 g1B Rh3 e3+ Kc2 a2 Ng3 a1Q Na3 e2 Bf4+ Kb6 Nf5 g4 Bg2 Na6 Bb8 Ne7 Nh6 Bh2 Re3 g3 Bh1 Nc5 Qb1 Na4 Qd1 Rg8 h8Q Nf5 Qf1 Bd6 f8Q Ng7 Qe7 Nb2 Qf3 Be5 Qh7 Bf4 Qhe4 Bg5 Qh4 Qa2 Bc7+ Ka7 b6+ Ka6 Nb5 Qa5 b7 e1N+ Kd2 Ra7 b8Q Ng2 Kc2 Nf4 Bd6 Rb7 Nc7+ Kb6 b5 Nfh5 Qa8 Rb8 Qae4 Qb4 Qef4 Qc5 Ne8 Ra8 Bb8 d6 Nc7 Bg4 Qe2 Ka5 b6 Qb5 b7 Rh8 Qef3 Rh7 Ba7 Rg8 b8Q Rhh8 Qbf8 Rh7 Bb8 Kb6 Ne8 Rhh8 Nf5 Rh6 Qh3 Rhh8 Nc7 Rh6 Q4e4 Nf4 Q4e5 Rh4 Nh6 Nfh5 Qef4 Bd7 Qhg4 Rh3 Qh4 Bf5 Qfe5 Bg4 Qef4
nR6/RQ2PRP1/1r6/pr2P1N1/2qqB1Kp/p2b1RBP/4nbk1/3rQ1R1 b - - 0 1 illegal: No proof kernel
3Nnk2/1P1b1N2/1nN1r1p1/3rq1P1/R4qPP/5Q2/Q1K1pprR/B2N2bN b - - 0 1 illegal: No proof kernel
2N1N1N1/K1k3P1/1pP1p3/1r4N1/1bNP1n2/1R1p4/bnQP1qB1/qQR2b1r b - - 0 1 illegal: No proof kernel
1NrQKNb1/1B1p2Bq/1B6/2qBR1P1/B2Pr3/2pPn3/1p2P1kb/q1n4Q b - - 0 1 illegal: No proof kernel
Q3bBQ1/rB4br/R1n1q3/np2N3/3k1B2/1q1PPp2/PPpB4/BN1n2K1 b - - 0 1 illegal: Other
1rRr1B1b/3N2n1/4nqPK/5QR1/pbB2p2/Q1r1BP1p/PP6/B2k1rB1 b - - 1 2 illegal: Other
5BR1/1PKp1pQr/1rQPq2p/nr1r4/2QR3b/kqPN1QQ1/7P/2N4n b - - 0 1 legal: proof: f4 b5 b4 e5 fxe5 h6 g4 c6 a4 Qg5 axb5 Na6 b6 Qd8 g5 Nb8 b5 Ba6 b7 Nf6 b6 Bd3 Ba3 Bh7 Bc1 Ng8 g6 Qc7 gxh7 Ne7 Bg2 Qd8 Bd5 Ng8 Bc4 Ke7 Bd3 Ke8 Bb5 cxb5 Kf2 Ke7 Kg3 a5 Kf4 g6 e4 b4 d4 b3 c3 b2 e6 Kd6 e5+ Kd5 e7 Kc4 e8Q a4 d5 a3 e6 g5+ Ke5 g4 e7 g3 Kd6 g2 Ne2 g1Q Nf4 a2 Nd2+ Kb5 Nb3 b1R Ba3 Qg2 Rg1 Qe4 Qf3 Nc6 b8Q Ka4 b7 Na5 Nh3 Nf6 Rg8 Ng4 Nf4 Nf2 Bb4 Rb2 Rd1 Nh1 Nc1 Qc2 Ba3 Rb5 Qc8 Qb3 Qc4+ Rb4 Rd2 Bg7 Qf8 Qe8 Kc7 Ra6 Qg3 Bf6 Qfg7 Rb6 Q7g6 Qf8 e8Q Bh4 Qee2 Qe8 Qef3 Qe3 Qg7 Qe6 Qc6+ R4b5 Bf8 Nf2 d6 Nh1 Qd4+ Ka3 Qdc4 a1R Na2 Re1 Nc1 Ree5 Rd4 Rec5 Nfd3 Rd5 Rgg4 Rg8 h8Q Rg7 Rg6 Rh7 Rg8 Qf5 Qf6 Qe6 Qfg7
1k2K1n1/bQ1p2B1/1P6/1QpQRr1Q/2nPbPNq/P3p3/1pNb3r/2Q4R b - - 0 1 legal: proof: e4 f5 exf5 h5 c4 b5 cxb5 Bb7 g4 Bc8 gxh5 a6 b4 Nh6 b6 Ng4 b5 Nf6 b7 Ng8 b6 Nc6 Be2 Nb8 Bb5 axb5 Ke2 g5 Ke3 e5 Ke4 c5 Kd5 g4 f4 b4 h4 e4 f6 b3 f7+ Ke7 h6 g3 h5 g2 h7 Ra7 h6 Qe8 Na3 Kd8 Nf3 g1B Ne5 Na6 b8Q Qe7 Ng4 Bd4 Bb2 Ra8 Nc2 Be3 Bg7 b2 d4 Qf6 a3 Bd2 Qd6 Qe7 Qc6 Nb8 Qb5 Nc6 Qg1 Na5 Re1 Nc4 Qe3 Bc3 Qc1 Bd2 Re3 Qf6 Re2 Bd6 Ree1 Qe7 f8Q+ Qe8 Re2 Bb8 Qf7 Ba7 Qf5 Qh5 Re3 Na5 Kd6 Bb7 Qg5+ Kc8 Re2 Nf6 Ke7 Nc4 Re3 Rf8 h8Q Rb8 h7 Bd5 Reh3 e3 Qg8 Qh6 Rh5 Bb7 Qe6 Be4 h8Q Kb7 Qf7 Rbd8 Qe6 Kb8 Qec6 Rc8 Qh7 Rh8 Qg8 Rf8 Q8d5 Rh7 Qgf5 Rf7+ Kd8 Ng8 Ke8 Qf6 Rg5 Rh2 Qh7 Qh6 Re5 Qh4 Qh5 Rf5 Qb7#
3qB1r1/n2p1N1P/2p5/pbrRQb1N/B2B4/P1P3n1/BkB1p1KP/1q3Q2 b - - 1 2 legal: proof: d4 h5 g4 e5 dxe5 a6 gxh5 Bd6 b4 Bc5 b5 Ba7 e4 f5 b6 Nc6 bxa7 Nf6 a3 Nb8 e6 Ng8 e5 Nc6 Ra2 Qh4 Rb2 Nb8 Rb4 Qd8 Re4 fxe4 f4 Ke7 Kf2 g5 h6 b5 c3 g4 f5 a5 h7 b4 f6+ Ke8 e7 Kf7 e8B+ Ke6 f7 b3 f8Q b2 Qe1 Kd5 Be3 Ne7 Bb5 Bb7 Nh3 Nbc6 Ba4 Kc4 Bg6 Nf5 e6 Rg8 e7 Rc8 e8B Ba6 a8B Bb5 Nf4 Na7 Nh5 g3+ Kg1 g2 Nd2+ Kd3 Bd5 b1B Ba2 Ng3 Nc4 Bc2 Nd6 Bb1 Bf2 Bc2 Bgf7 e3 Bfb3 Bb1 Qg7 e2 Qe5 Bc2 Bc5 Bb1 Kf2 g1Q+ Kf3 Bc2 Nf7 Qf1+ Qf2 Qb1 Kg2 Kd2 Re1 Bf5 Qf1 Kd3 Bg1 Kd2 Bd1 Kc1 Bdc2+ Kb2 Be3 Rb8 Bc5 Rb6 Bf2 Rc6 Rd1 Rc5 Rd5 c6 Bd4
K1Nb2r1/pp2N2q/P1N1p1nB/RPr1P1b1/3Np2P/1k2q1RQ/6q1/Q2N4 b - - 2 3 legal: proof: c4 d5 cxd5 h5 e4 g5 e5 f5 h3 h4 Ke2 g4 Ke1 g3 Bd3 Nc6 Be4 Na5 Rh2 fxe4 Rh1 Bg4 hxg4 h3 Na3 h2 Qf3 Nc4 Nb1 Nd6 Qd1 Nf7 Ne2 Ng5 Ng1 Nh3 gxh3 Bg7 Qf3 Bh6 Qd1 Bf8 Ke2 Kd7 Ke3 c5 d4 g2 b4 e6 a4 c4 f4 c3 d6 Kc6 f5 Kd5 a5 Kc4 f6 c2 b5 Rh4 g5 Ne7 d7 Bh6 f7 Rh5 f8N Qb8 d8Q Ng8 d5 Ne7 d6 Nc6 h4 Nb4 a6 Qc8 d7 Na2 Nc3 Rb8 Nge2 Bg7 g6 Bh8 g7 Nb4 g8N Na2 Nd4 Rh6 Ne7 Nb4 Ra5 Bf6 Rg1 h1Q Nfg6 Qc7 Nc8 Rh8 Nge7 Nd3 Qg8 Nf4 d8N Qh2 Qgg4 Rg8 N8c6 Ng6 Qh3 Ra8 Bd2 c1B Qe1 Rb8 Nd1 Qh1 Ndf5 Kb3 Kd4+ Kc2 Be3 Kb3 Kc5 Qh2 Qf1 Qg3 Bh6 Bcg5 Nd5 Qh7 Kd6 Qe3 Nde7 Ra8 Kc7 Rb8 Nf2 Ra8 Qa1 Rb8 Nd1 Ra8 Rf1 g1Q Rf3 Qg2 Rg3 Rb8 Ncd6 Rbd8 Nc8 Rd5 Kb8 Rc5 Ka8 Qg1 Nd5 Bd8 Nde7 Qg2 Nfd4+
N1R5/NN2r1kn/n1QQ1pNp/Br2pbnP/pq2P2P/P4B2/1q3b1K/6N1 b - - 0 1 illegal: No proof kernel
1b1N1R1k/p3nn1p/2BR2nR/1bQNp2R/2Q1P2r/P1K1p1PP/1r6/R4nq1 b - - 0 1 illegal: No possible last move, all moves rejected
1Qr1Qn2/3p1kp1/PQ3q2/p1pb1qP1/R1B1p1Q1/P1Q3n1/N1Pb1R1r/KN6 b - - 0 1 illegal: No proof kernel
5B1n/B1P5/2B4Q/1Qq1NP2/1PrrN2n/P1k2n2/R1rq1B2/q1b2KQ1 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 d4 a4 dxc5 a3 bxa3 Ra7 Bd2 Ra4 Bc1 Ra8 Be2 b5 Bf1 Bb7 Qd4 Bd5 Qd1 Bb3 axb3 Ra4 Qd5 Ra7 Qd1 Ra8 c4 Na6 b4 Rh6 c6 Rh8 c5 Nb8 Ra2 Qc7 Rc2 Qd8 Rc4 bxc4 h4 Kf7 f4 Kf6 h6 g5 c7 d5 c8Q e5 h7 d4 c6 c3 h5 e4 h6 c2 c7 d3 Nc3 g4 Be2 e3 Bb2 c1R Qb7 g3 Bf3 g2 Be2 Nc6 Nb5+ Nd4 Na7 Rc4 Bf3 e2 Nc6 Ne7 Nh3 Ng6 Ne5 d2+ Kf2 e1N Bc6 Ra6 Rh2 Ndf3 Bd4 Nfh4 Ba7 Nef3 Qg1 d1Q Qb5 Qa1 Ng5 Rg8 Ke2 Nh8 Kf2 Bc5+ Ke2 Be3 Ne4+ Ke7 f6+ Ke6 f7 Rg4 f8B Bc1 Nd2 Kf6 f5 Rgd4 Kf2 Kg5 Ne4+ Kf4 Qd1 g1Q+ Ke2 Qgg5 Qg1 Qge7 Kf1 Qc5 Ra2 Qdd5 Qg8 Ke3 Qg6 Nf7 h8Q Rb6 Qhg7 Nh8 h7 Rc2 Q7f6 Rdc4 Qgg7 Qd2 Qfh6+ Kd4 Qg8 Rb8 Qg2 Rd8 Qh2 Nf7 h8B Rd6 Bf6 Nh8 Bg5 Rd8 Bf4 Rd7 Bg3 Rd8 Ng4 Kd3 Bf2 Rd5 Qg1 Rd4 Nef6 Kc3 Ne5 Rd8 Qgg7 Rd7 Qg1 Rdd4 Ne4+
1Q2K2B/1nkNnN2/1rnRQ3/3r1P2/5prB/2q1PPp1/qP1NB3/3B4 b - - 0 1 legal: proof: c4 a5 d4 b5 a4 e5 axb5 d5 cxd5 a4 d6 Ra6 d5 Ra8 Ra3 Ra6 Re3 a3 Re4 a2 Ra4 a1R Qd3 Ra3 Qd1 Rb3 bxa6 Rb7 Nc3 Ra7 Nb1 Ra8 g4 g5 Re4 f5 Rd4 exd4 h3 f4 h4 Bf5 gxf5 g4 Bg2 Bh6 Bf1 Bg5 hxg5 Qe7 Qc2 Qd7 Qd1 Qd8 Kd2 Kd7 Kd3 h5 Ke4 c5 Ke5 g3 e3 c4 g6 c3 g7 c2 a7 h4 Be2 h3 Nd2 d3 Ngf3 Kc8 Ke6 h2 Kf7 Qg5 d7+ Kb7 d8B Nd7 d6 Ne5+ Ke8 Rh6 d7 Ne7 g8Q N5c6 Ne5 Qf6 Qe6 Qg7 Rf1 h1Q f3 Rc8 a8B+ Kb8 Rf2 Rh4 Rh2 Rg4 Rh6 Rc7 Qe1 Rb7 Bd1 Rb5 Bb7 Rb6 Ba6 Qh5+ Rg6 Qg5 Qh1 Q5f6 Qh6 Qg8+ Qf8 Qfg7 Nf1 Q7h8 Bd2 c1N Bc3 d2 Bae2 Nb3 Bd4 Nba5 Bc3 Nd5 Bh4 Nde7 d8N Kc7 Ndf7 Nb7 Nd7 Qe5 Bd4 Qa5 Bh8 Qc3 Bc2 d1R Nd2 Ra1 Bcd1 Ra5 Qc4 Rd5 Rd6 Qgg7 Qa6 Qb3 Qg8 Qa2 Qa7 Qe5 Qg6 Qd4 Qe6 Qc3 Qb8+
k2Q4/4B2p/b1q1P1b1/1P2Pb2/BqNQq3/N2RQN1n/NP5p/1n3K2 b - - 0 1 legal: proof: d4 c5 a4 a5 f4 b5 axb5 e5 fxe5 g5 c4 Ra6 Nc3 Rf6 Nb1 Rf3 Nd2 Rb3 b6 Rb5 cxb5 c4 Nb1 Ba3 Ra2 Nh6 Qd3 Qf6 Kd1 Bb7 Qf3 Ke7 Qf4 Rc8 Qg4 Ng8 Qf5 Ke8 Qd3 Qd8 Ra1 Bf8 Ke1 Rc5 Qd1 Bc8 dxc5 Bg7 h4 Ke7 g4 Bb7 h5 Bc6 h6 Bf3 hxg7 Ke8 Rh4 gxh4 g5 Bb7 g6 Ne7 g8N Bc8 g7 Ng6 Ra3 Nc6 Rh3 Nf8 Rh1 Nb8 e4 f5 e6 d5 b7 d4 e5 h3 c6 d3 c7 f4 Qe2 c3 Nf3 c2 Qh2 d2+ Ke2 d1B+ Kf2 a4 Nfd2 f3 Qg1 a3 Bg2 h2 Nb3 a2 Nh6 a1Q g8N Ng6 Nd4 Nd7 b8Q Qa5 Qa7 Nf4 Ne7 Ba6 c8Q Qb4 Qcb8 Nb6 Kf1 f2 Bf3 Nh3 Nhf5 Na4 Nd5 Nc3 Bg5 c1Q Na3 Nb1 Be7 Qc6 Nfe3 Bc2 Bd1 Bf5 Nf3 Qe4 Qbc7 Qdd6 Ba4 Qdb4 Nc3 Bg6 Qd4 Bf5 Ke2 f1B+ Ke1 Be2 Nec4 Bd3+ Qge3 Bc2 Kf1 Bg6 Qb7 Bf5 Na2 Bg6 Bd6 Kd8 Qbb6+ Kc8 Be7 Bf5 Qa5 Kb7 Rg1 Bg6 Rg2 Ka8 Rd2 Qg4 Rd1 Bcf5 Rd3 Qge4 Qad8+
4qQ2/4PqnN/2RP1p1b/KR2p1PR/2pB1N1P/5Q2/k5rQ/3R2nr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 g5 fxg5 d5 axb5 d4 g6 d3 cxd3 Nh6 d4 Rh7 d5 Ng8 d6 Rh8 d4 e5 e4 Nc6 d5 Bh6 g5 Be6 Bh3 Nb8 Bg4 hxg4 dxe6 Bf8 Ke2 Qd7 Kf2 Qc6 Ke1 Qd5 exd5 Rh7 Nf3 Rh5 Ng1 Rh8 Kd2 a5 Kc3 c5 b4 c4 g7 g3 d7+ Ke7 d8R g2 b6 a4 b7 a3 b5 a2 Kb4 Rh3 b6 Re3 Ne2 g1Q Nbc3 Nh6 g8Q Nf5 Qh7 Qf2 Ne4 Ng7 Bb2 Rh3 Rc8 Nc6+ Kb5 Ra6 Nf6 Kd6 b8R Nd4+ Kb4 Qf1 e7 Nf3 b7 Ng1 Bd4 Rg3 h3 Rg2 Nf4 Rb6+ Ka4 Rb1 Qf3 Rc1 Rb1 a1Q+ Kb5 Re1 Rd1 Qa8 Qhh5 Qf2 Nh7 Qa4+ Kb6 Qe8 Ka5 Qf1 Qg3 Qf3 Qh2 f6 Qg4 Qf7 Qgg3 Q3h5 Qf3 Qe8 Rc5 Qhf7 Rbc8 Ne6 R8c7 Bh6 b8Q Ng7 Rb5 Qc6 Qf8 Qce8 Ba7 Rf1 Rcb7 Re1 R5b6+ Kc5 d6 Rd2 Rc7+ Kd4 Rcc6 Rf1 Qe4+ Kc3 Rb5 Rg2 Qf3+ Kc2 Rbc5 Kb2 Rb5+ Ka2 Bd4 Ne2 Rg1 Rgf2 Rg4 Rg2 Rh4 Rh1 Rh5 Ng1 h4
1K3b1n/8/B4RPk/1N2nq1p/1Q2PB2/1PpPp2Q/2Bq2Bn/2Q2Rb1 b - - 0 1 legal: proof: h4 b5 Na3 g5 hxg5 a5 Nc4 d5 Ne5 b4 Nc4 a4 b3 Ra5 bxa4 Rb5 a5 b3 Rh6 b2 Rh1 Rb3 cxb3 Bg4 Rh2 Be6 Rh1 Bc8 d3 dxc4 Rh2 h5 Rh3 e5 Rh1 e4 f3 e3 d4 Bf5 Rh2 Bc2 Rh1 Bd3 exd3 Rh6 Ne2 Re6 Ng1 Re4 fxe4 Bd6 Rh2 Be7 Rh1 Bf8 Ke2 b1Q Kf3 f5 Kf4 Kf7 Ke5 Kg6 a4 c5 g4 c3 d5 c2 a6 c4 a7 f4 a8B c3 a5 f3 d6 f2 d7 Qa2 a6 Be7 a7 Ba3 Ne2 Be7 Ba3 c1B Bg2 f1N Bd6 Qa6 Nd4 Ng3 Bb7 Nf1 a8Q Qe8 d8Q Qd7 Qb6 Nh6 Nb5 Ba3 Qc1 Nd2 Rf1 Bf8 Rf6+ Kh7 g6+ Kg7 g5 Qa5 Ba6 Kh8 g7+ Kh7 g8B+ Kg7 g6 Nf1 Be6 Nh2 Bg4 Nc6+ Kd5 Bb4 Bd1 Nf7 Qc8 Nh8 Bc2 Kh6 Qc5 Qa7 Bg3 Ne5 Qh3 Q7c7 Qc4 Bbd6 Qb4 Qd7 Rb1 Qf5 Ra1 Qa2 Rb1 Nd7+ Kc6 Bf4 Kb7 Ne5 Kb8 Qb2 Bh4 Bg3 Ra1 Bf2 Bg3 Bg1 Qd2 Nhf3 Rf1 Nh2 Qc1 Qa2 Bd1 Qe2 Bc2 Qd2 Bf4+
bq3n2/Q3BNrn/2P5/1QN2bP1/rPb4K/1QB2BP1/4R1r1/nn2Qk2 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 g5 e4 c5 dxc5 Qc7 exf5 Qb6 f6 Qd8 b4 Na6 f4 Bh6 g4 Nb8 f5 Bb7 Ra3 Ba6 Rf3 Bc8 Rf4 gxf4 Ne2 Bg5 Ng1 Bh4+ Ke2 Bg3 hxg3 Kf8 Ke1 Ke8 Kf2 Kf7 c4 a5 b6 e5 c6 d5 b7 h5 c7 d4 c5 d3 g5 a4 Kf3 a3 Qc2 e4+ Kg2 a2 Kh3 a1N Bg2 d2 Kh4 d1N Nh3 f3 Na3 f2 Qa4 f1B Rg1 e3 Nf2 e2 Qa5 e1R Bf3 Nd7 b8Q Nc3 Nd3 Nb1 Qbb5 Rh7 Bb2 Nf8 Nc4 Rg7 Bc3 Re2 Qa7 Rg2 Rh1 Bd7 Rh2 Qb8 c8Q Be2 Qcc7 Bf1 Qa3 Ra4 Qb3 Be2 Qa7 Bf1 Kh3 h4 Kg4 h3 Kh4 Rb2 Rd2 h2 Re2 h1B Nce5+ Ke8 f7+ Ke7 Ne1 Nf6 N1d3 N6h7 f6+ Kd8 Bh5 Ba8 c6 Bf5 Nc5 Rd2 Bf3 Rda2 Re3 Rg2 Re1 Bc4 Re2 Nd7 f8B Kc8 Be7 Ndf8 Qaa6+ Kc7 f7 Ra5 Bf6 Kd6 Qa7 Ra4 Bd8 Be4 Be7+ Kd5 Bd2 Kd4 Be1 Ne6 f8Q Bf5 Qc8 Nef8 Nf7 Bg6 Qh3 Bf5 Qh2 Qb6 Rf2 Qb8 Bc3+ Ke3 Rb2 Bc2 Ra2 Kf2 Rb2 Kf1 Ra2 Be4 Re2 Qd8 Qh3 Qe8 Qhd7 Bf5 Qd2 Qb8 Qe1#
1qR4N/N3B1QK/P1RbP3/1rQ1n1rP/1b2n3/P1N3q1/1Rnkn3/1b2R3 b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 h5 b4 d5 bxa5 f5 gxf5 d4 Bh3 d3 Bg4 hxg4 cxd3 Nf6 d4 Ng8 d5 Qf6 Kf2 Qg5 Ke1 Qd8 Kf2 Ke7 Ke3 g5 Ke4 b5 h4 c5 d4 b4 a6 g3 a3 g2 h5 c4 e6 Kf6 e7 b3 e8R g4 d6 c3 d7 c2 d5 b2 d6 g3 Nc3 b1Q Qd5 Qc7 d8R Nc6 d7 Bb4 Nb5 Rb8 Na7 Rb5 Ra2 Nd4 Qc5 Rh6 e3 Kg5 Rb2 Rg6 Ne2 g1N Nc3 g2 Re6 Qg3 Rc6 Ngf3 f6+ Ne5 f7 g1B f8Q Bh2 Re1 Kg4 Qfe7 Rg5 Qg7 Bb7 Rc8 Ba8 Kd5 Kf3 d8N Nf6+ Kd6 Ne4+ Ke7 Bb7 Kf8 Ba8 Bd2 c1N Kg8 Nc2 Nf7 Ne2 Kh7 Bb7 Rh6 Bd5 Nh8 Ba2 Rg6 Qa1 Rh6 Bb1 Rhc6 Qa2 Bc1 Qf7 Bd2 Qb7 Bc1 Nd2 e4 Qb8 Qd6 Ke3 Qd5 Nd7 Qc5+ Kd3 e5 Ne4 e6 Ne5 Rg1 Ne1 Be3 Nc2 Bf2 Kd2 Re1 Qg1 Bh4 Qg3 Qf2 Bg1 Qf5 Bgc5 Qf2 Bd6 Qc5 Rf5 Bf6 Rg5 Be7
B7/RB4BK/4R1PQ/1N1P1rQr/qq1r1rPq/1b1k1P1n/BR6/2r2n2 b - - 0 1 legal: proof: h4 b5 d4 f5 a4 c5 axb5 d5 dxc5 g5 hxg5 d4 e3 d3 Nd2 Bg7 Ne4 Bd4 exd4 fxe4 Kd2 Kd7 Ke3 Ke6 Kf4 Kd5 g4 Kc4 b4 e5+ Ke3 a5 c6 h5 f3 a4 g6 h4 b6 h3 c7 h2 c3 a3 b7 a2 b5 Na6 b8R Rh5 b6 Nf6 b7 Rf5 Qd2 Be6 c8B Nc5 Bb2 Ra4 Ne2 Nh5 Bd7 Qb6 Bc6 Ng3 Re8 Bd5 b8Q Ne6 Ba8 Ng5 Qd8 Qb4 Re6 Nh3 Qc1 d2 Qg5 d1R Qh6 Bc6 d5 Rd4 Rg1 h1R Rg2 Ra6 Qg5 Ba4 Rh2 Bb3 Qh6 Kc5 c4 Ra4 Rg2 Rh2 Nc3 Rh1 Nb5 Rh2 Rb1 a1Q Bd3 Qaa3 Ra1 Rh1 Bb1 Nf1+ Ke2 e3 Ba2 e4 Qd2 Rd3 Bg7 Rd4 Rf2 Ra7 Rg2 Raf7 Rh2 Qba4 Qc1 Kb4 c5 Qb2+ Qd2+ Kc4 c6 Qc3 c7 Qcb4 c8B Rf8 Ke1 e2 Bcb7 Rf4 Qg5 R8f5 Qh6 Ng1 Kf2 e1R Kg2 e3 Qg5 e2 Qe3 Nd2 Kg3 Rc1 Kh4 e1Q+ Kh5 Nf1 Kh6 Nh3 Rb2 Qf2 Kh7 Qh4+ Qh6 Rh2 Qe5 Kd3 Qf6 Re2 Qe5 Rh5 Qg5 Re5 Ra6 Ref5 Ra7 Rc5 Re1 Rc1 Re6
B4q1R/q4Q1P/r7/3B1PR1/1R2N1PP/n2b2rb/q2Q1B1b/2KB1qkq b - - 0 1 illegal: No proof kernel
R3nKBb/7R/8/3P2b1/rP1r3P/kr3PQ1/NqN1bRr1/1bN1QqN1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 f5 cxd5 e6 f4 e5 fxe5 f4 b3 h6 Ba3 f3 Be7 Nc6 Bg5 hxg5 Qc2 f2+ Kd1 Ke7 Kc1 Nd4 Qd1 Nf3 gxf3 Ke8 Kc2 Kd7 Kc3 a5 Kc4 c5 d4 g4 e4 g5 b4 a4 d6 a3 Kd5 c4 b6 g3 b7 g2 b8Q g4 Nc3 g3 Nce2 c3 Nc1 a2 Bc4 f1B Qe1 c2 h4 Rh6 Rh2 Bg7 Kc5 Nf6 Bg8 Ra4 e6+ Ke8 e5 Be2 e7 Kd7 e8N Bh8 Ng7 Ne8 Nf5 Qf6 Ne3 Bca6 Nd1 Bad3 Nc3 Ra3 Kd5 Rb3 Kc5 Rg6 d5 Rg4 Rb1 a1R N3a2 Rd4 Rb2 Ba6 Rh1 Bc8 e6+ Kd8 e7+ Kd7 Nc3 Ra4 N3a2 Bca6 Rh2 Bad3 Rb1 Bg6 Ra1 Be4 Qb5+ Kc8 d7+ Kc7 d8N Bh7 Nc6 Qe5 Nh3 g1Q Rf2 Qf1 Ng1 g2 Qd3 Kb7 Qg6 Ka6 Qg3 Bf5 Na5 Qg7 Nc4 Bfd3 Ne3 Bh7 Nd3 c1B Nc2 Bg5 Ndc1 Bf5 Kc6 Be4 Kd7 Kb5 Ke6 Qe5+ Kf7 Kc4 Nh3 g1R Kf8 Rg2 Ng1 Kb5 Ne3 Bb1 Nc2 Ng7 e8R Kc4 Re7 Ne8 Rf7 Rb2 Nd3 Kb3 Ne3 Ka3 Ndc1 Rb3 Rc7 Qe4 Rh7 Qe5 Nc2+ Kb2 Qd2 Ra5 Rd7 Rg4 Rh7 Qc3 Qe1 Rd4 Ne3 Qc2 Nc3 Ra7 Ra5 Ra8 N3a2 Ra7 Rb5 Ka3 Rb8 Qb2 Ra8 Ra4 Nc2+
8/2B3Q1/Nbb1PbB1/r4Rqb/k5nP/r1R3q1/P1PrQBQr/4K2B b - - 0 1 legal: proof: f4 e5 fxe5 a5 g4 f5 d4 c5 dxc5 a4 Nd2 f4 Ne4 Nc6 Ng5 Nce7 b3 h6 bxa4 hxg5 a5 Nf5 gxf5 g4 e4 g5 c6 b5 a6 d5 f6 f3 e6 b4 e5 d4 h3 b3 a7 f2+ Ke2 b2 c7 b1R e7 Kd7 e6+ Kc6 e8B+ Bd7 c8Q+ Kb5 f7 g3 Qd2 d3+ Kd1 g4 Qe1 g2 Nf3 g1B Qe2 g3 Nd4+ Ka4 Qc7 g2 Nb5 Bg7 f8B d2 Bc5 Rb3 Bg6 Bc6 h4 Bf6 Bd4 Nh6 Rh3 Ng4 Rc3 Ra3 Qg7 Qc7 Bb6 Qg3 Nc7 Rhd8 Na6 Rd5 Bd4 Rad8 a8Q Ra5 Rb1 Rd6 Rb5 Rd7 Qe5 Rd6 Bc4 f1R+ Ke2 Be3 Bd5 g1Q Bh1 Rd5 Ba7 Bb6 Bb8 Qc5 Bc7 Rf2+ Kd1 Rg2 Qe2 Rh2 Bb2 Rd8 Qb7 Qg5 Rf5 Bd7 Qbg2 Bc6 Rcf3 Rd7 Bd4 Rdd5 Bf2 Rd8 Qe3 Rdd3 Ke2 d1B+ Ke1 Rd2 Qd3 Ne5 Re3 Bh5 Qe2 Ng4 Rc3
5b1Q/N2NbPq1/4KPB1/2PnNP2/8/2rQb1Qr/bQrR1R1q/6rk b - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 f5 exf5 b4 g4 b3 f6 Qc7 axb3 Qb6 b4 Qc7 b5 Qd8 f4 h6 f5 Nc6 g5 Ne5 g6 Nf7 Bg5 hxg5 Kd2 Qc7 gxf7+ Kd8 Ke2 Qb8 Ke1 Kc7 Nf3 Bb7 Ng1 Qd8 Nc3 Ba6 Nb1 Bc8 Kf2 d5 Kf3 a5 Kg4 e5 b4 e4 h4 e3 c4 d4 c6 Kd6 c7 Ke5 b6 Ke4 b5 d3 h5 a4 h6 a3 b7 e2 b8N e1B h7 a2 b6 d2 b7 Qd6 Rh6 Be6 c8Q Ne7 Rh4 Qh2 Ne2 Ra3 Rh6 Nd5 Nd7 Rc3 Qc1 d1R b8Q Rd2 Nf4 Rdc2 Na3 g6 Rb1 a1R Qcb2 Bd2 Qc6 Be3 Nb5 Bec5 Na7 Bce7 c5 Ke3 Q2b3 Kf2 Qcc7 Kg1 Nd3 Kh1 Rd1 Rb1 Kf3 g4+ Ke4 g5 N3e5 g3 Rd2 g2 Be2 g1Q Bh5 g4 Bg6 g3 Qc4 g2 Qb2 Nf4 Qe2 Ba2 Qd3 Nd5 Qcb8 Qe1+ Kd4 Qg3 Rh3 Qg5 Rf3 g1B+ Rff2 Qgh6 Q8b3 Qg7 Qg3 Ra1 Qb5 Rb1 Qbd3 Re1 Nf3 Rd1 Ke5 Rdc1 Ke6 Re1+ Rfe2 Be3 Nfe5 Rg1 Rf2 Rg8 Qh3 Rg3 h8Q Rg1 Q8h7 Rh8 Qg8 Rh4 Qg3 Rh3 Qh8
4RR2/Pn1PrR2/3bPQQN/2B3n1/KPrn2Br/2b1B3/8/bk2r1Rb b - - 0 1 legal: proof: g4 a5 f4 e5 fxe5 b5 b4 d5 bxa5 h5 gxh5 b4 c3 b3 Na3 Qe7 Nc4 Qb4 cxb4 dxc4 h4 Ke7 e4 Ke6 a4 g5 d4 f5 Kd2 c5 Kc3 b2 h6 b1N+ Kb2 c3+ Kb3 g4 h7 g3 h5 g2 a6 f4 h6 c2 a7 f3 a5 f2 a6 c4+ Ka4 c3 Be2 f1R Ra3 Re1 Bf1 Ne7 Qg4+ Nf5 Be2 Bb7 Nf3 g1B Nh4 Bd6 Be3 c1B Bd1 Re8 h8B c2 h7 Bd2 Bf3 Bf2 Rg1 c1R Ra1 Nd7 Qg6+ Nf6 Ra2 Bc3 Bg4 Nd2 Rc2 Rab8 a8R Nc4 a7 Na5 Bg7 Rbd8 h8Q Re7 Bf8 Bd5 Rc8 Nb7 Rd2 Bg3 Rf2 Ba1 Rf3 Rc4 Rf4 Rde8 Rc7 Rh7 Rf7 Re7 Rf2 Bf4 Rf3 Bh6 Rff1 Bg7 Rf2 Kd7 e6+ Kc6 e5 Bh1 Rff1 Kb6 d5+ Nd4 Nf5 Rh4 Nh6 Ne4 R1f3 Ng5 Rff1 Bb8 d6 Kc6 d7 Kd5 R1f6 Bd6 Rf2 Bf6 Rf5 Ke4 Qhg7 Re8 e7 Kd3 e6 Kc2 Qh8 Kb1 Qhg7 Nb5 Qh8 Bfc3 Qhf6 Ra8 e8R Nd4 Be7 Rb8 Bd8 Rbc8 Bb6 Ra8 Bc5 Rd8 Ree7 Rh8 Re8 Rh7 Rff8 Re7 Qe5 Kb2 R5f7 Ka2 Qeg7 Kb2 Q6f6 Kb1 Qgg6+
1q2rQ2/bk1Q2R1/4QPn1/2b1rR2/2b1Pn2/r1N1PpQB/2P2N2/n4R1K b - - 0 1 illegal: No possible last move, all moves rejected
3rb1R1/NP3n2/P3npb1/N4P2/PR2r1k1/Q3QnB1/b2QK3/2q2RQr b - - 0 1 legal: proof: c4 a5 b4 b5 cxb5 e5 bxa5 g5 d4 g4 dxe5 Qf6 Bg5 Qe7 Bc1 Qd8 h4 Nc6 f4 Ba3 g3 Be7 Bg2 Bg5 hxg5 Nd4 g6 Nc6 Bf3 gxf3 g4 Nb8 g5 Ra7 Bd2 Ra6 Bc1 Ra8 e4 Ke7 a4 Ke6 g7 h5 g6 c5 b6 d5 a6 h4 b7 c4 Qc2 d4 Qg2 h3 Qe2 f2+ Kf1 c3 Qf3 d3 Ba3 h2 Nd2 c2 Ne2 c1N Nb3 f6 Na5 d2 Rb1 d1B Rb4 Qc7 Nc3 Nb3 Nb5 Nc6 Na7 Bc2 Ke2 Rh4 Rf1 Nh6 g8R h1R g7 Nf7 Bb2 Nd2 Qa3 Bd7 Bc1 Ke7 e6 Nf3 e5 Bg6 f5 Rd8 Bf4 Be8 Bg3 Ncd4+ Ke3 Qc1+ Kd3 Nb5+ Ke2 Rc4 Rh8 Nc7 g8Q Bh5 Qg5 Bg6 Qd2 Rcd4 Rh3 Kf8 e7+ Kg7 Rh8 Ne6 Rg8+ Kh7 Qda2 Kh6 Qd2+ Neg5 e6 Kh5 Nc8 Kg4 Na7 Bd7 e8Q Re4+ Qae3 Bc6 e7 Ne6 Qf8 Bd5 e8Q Ba2 Rd1 Ng7 Qee7 Ne6 Qg7 f1B+ Kf2 Bd3 Rf1 Bb5 Qa3 Rc4 Ke2 Be8 Qc5 Rcd4 Qgh6 Rf4 Qg1 Re4+ Qhe3
1r4B1/3QP1KR/1BP3Nn/1P1qn2q/1N1k2b1/4pq2/BNbPB1r1/Q2b4 b - - 0 1 legal: proof: e4 b5 a4 d5 exd5 g5 axb5 c5 h4 Ba6 hxg5 Bb7 b6 Bc8 b4 e5 f4 e4 b5 Bg7 Ra4 Ba1 Rb4 Be5 fxe5 cxb4 Kf2 Ke7 Ke3 f5 Kf4 h5 c4 a5 g4 h4 b7 b3 g6 a4 Kg5 a3 c5 e3 c6 f4 e6 Kd6+ e7 Ke5 g7 h3 Kg6 a2 d6 a1Q d7 h2 g5 f3 Nh3 f2 Nc3 b2 Na4 Qa2 Nf4 Qa1 Be2 Nh6 g8B b1B+ Kg7 f1Q g6 Bc2 Ba2 Qf3 Ba3 Kd4 Nb2 Qb1 Qg1 Qd1 Bd6 Rf8 Bc7 Rf5 Qf1 Rg5 Qe1 Rg2 Ba5 Qe8 d8Q+ Nd7 b8N Qd5 Na6 Rb8 Nb4 Ne5 Qd6 Bh3 Qd7 Bg4 Qg1 Qf1 Bc7 Qf2 Qa1 Qf3 Bb6+ Ke4 Kh7 Qef7+ g7 Qh5 g8B Bd1 Rg1 h1B Ng6 Bc2 Ba5 Kd4 Kg7 Rh2 Rg3 Bg2 Bc7 Bf1 Rh3 Rg2 Bd3 Be2 Rh2 Bed1 Be2 Qg5 Rh4 Nhf7 Rh6 Qh5 Rh7 Nh6 Bb6+
4N3/b1P1rQR1/2P1Qb1P/NrP1n1p1/3n2b1/1RBq1q1Q/N5n1/4k1NK b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 c5 bxc5 a6 g4 Ra7 gxh5 Ra8 Bb5 axb5 d4 d6 c4 Ra3 d5 Ra4 c6 Qc7 c5 Qb6 c7 Qc6 dxc6 Ra8 Kf1 Kf7 Kg2 Kf6 a4 Ke5 h4 Ke4 f4 e5 a5 g5 h6 b4 a6 b5 h5 b3 f6 b4 f5 d5 a7 b2 f7 d4 h7 b3 f6 d3 h6 d2 Nf3 Kd3 Ra3 e4 Qg1 Ke2 Rh4 d1N Rf4 e3 Ra1 Nd7 Qh1 Rb8 a8N Rb5 Bd2 Bg7 f8Q Ne5 f7 Ne7 Qe8 Bf6 f8Q Nf5 Nb6 Nd4 Qff7 Bg4 Qee6 Re8 Qh3 Re7 Kh1 Kf2 h8N e2 Ra6 e1B Nc4 Ne3 Bc3 Ng2 Na5 Bd2 Ng1+ Ke1 Bb4 Bc3 Rb6 Bd2 Nc3 b1Q Na2 b2 Rf2 Qf5 Bc3 b1Q Rb8 Qf4 Rg8 Qc2 Rg7 Qd3 Rf3 Qfe4 Qg6 Qee3 Nf7 Qee2 Rg3 Qdf3 Nd6 Qed3 Ba1 Bc3 Qgf7 Bb4 Ne8 Bc3 Nb7 Ba5 Bb2 Bb6 Na5 Ba7 Ba1 Qd2 Bc3 Qf1 Rd3 Qf3 Ba1 Qde3 Rb3 Qd3 Bc3+
1br3k1/1P1Rqr1b/3QPNpR/4q3/RP3Q1P/n1N5/1K2n1B1/nRNr4 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 g4 f5 gxf5 h6 b3 Qd7 Ba3 Qd8 Be7 Bd7 Bh4 Bc8 Bg5 hxg5 d4 Kf7 Kd2 a5 Kc2 c5 h4 c4 e4 c3 f6 g4 b4 g3 d6 g2 d5 a4 b6 a3 d7 a2 b7 Bd6 Qd3 Qe7 d8R Nd7 Ne2 g1R Nc1 Nh6 Bg2 Bb8 d6 Rh7 Rh8 Nb6 d7 Nf5 d8R Nc4 Rd7 Rd1 Qd6 Ng3 Re1 Ne2 e6+ Kg6 f7 Na3+ Kb3 c2 Nc3 Kf6 Rb1 a1N+ Kb2 g6 f8Q+ Rf7 Rd8 Bd7 Rh6 Bc6 Rd7 Bd5 Qd8 Kg7 e5 Bb3 Q8c7 Kg8 Rf1 Ra6 Qc4 Rc6 Qf4 Rc8 Rg1 Qf8 e7 Bc4 e8N Qe7 Nb3 c1Q+ Ka2 Kf8 Nf6 Qe3 Kb2 Qg3 Nc1 Qg5 Nfd5 Kg8 Nf6+ Kg7 Qh2 Re1 Qb6 N1c2 Qa6 Rff8 Nb3 Nb5 Qb6 Bg8 e6 Qe5 Qd6 Bh7 Qf4 Rf7 Ra1 Kh8 Ng4 Kg8 Ra4 Nba3 Rf1 Na1 Rg1 Rd1 Re1 Rd4 Rb1 Rd5 Nc1 Rd1 Nf6+
R7/b1P2Pkr/qn5r/4r1Pp/B2bnQBP/2Qr2BB/2r4N/Q2N1K2 b - - 0 1 legal: proof: b4 f5 e4 c5 exf5 b5 bxc5 b4 c4 b3 a4 b2 d3 Qb6 c6 Qb5 Nc3 b1Q axb5 Qa2 Nb1 Qa5+ Qd2 Qc7 Qd1 Qd8 f4 g5 c5 Na6 f6 Nb8 b6 Ba6 f5 Nh6 Ra4 Ng8 Rf4 Bc4 dxc4 gxf4 g4 Kf7 h4 e5 g5 h5 c7 a5 c8B d5 b7 e4 c6 f3 c7 e3 c5 d4 c6 d3 Ba3 a4 Qe2 Qd6 Bd7 Ra7 c8B Rh6 Qg2 e2 Qh3 d2+ Kf2 e1R c7 d1R Nc3 Qa6 Bd6 a3 Bg3 a2 Ba4 Nd7 b8Q a1B Qb2 Rd3 Nd1 Re5 Qb1 Bb2 Qa1 Nb6 Be2 Bd6 Kf1 f2 Nf3 Bc5 Nh2 Bbd4 Bg4 Kf8 f7 Kg7 Bcd7 Nf6 Be6 Ne4 f8Q+ Kh7 Qd6 Kg7 Rg1 Ra8 Rg2 Rah8 f6+ Kg6 f7 Kg7 Bed7 R8h7 Rg1 Ree6 Qf4 Re5 Ke2 f1R Bc8 Rff3 Re1 Rfe3+ Kf1 Rd2+ Re2 Rdd3 Ra2 Re2 Bgf5 Rc2 Bb3 Nd5 Qhg4 Qa5 Qgf3 Rdd2 Qfc3 Rd3 Bh3 Qb6 Ra8 Qa6 Bcd7 Ba7 Bba4 Nb6 Bdg4
bR2N2b/P1r1n2B/3B2qR/2P2n2/1P3nQQ/1QPnkp2/r1n5/1K2Q2B b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 h5 g4 b5 gxh5 e5 fxe5 a4 Qd5 Nh6 Qb7 Ng8 Nd2 Bd6 b4 Bf8 Nb3 axb3 Qxb5 Qe7 Qb7 Qd8 Kd1 Ke7 h4 Ke6 a4 Kf5 e4+ Kg4 h6 f5 c3 d5 h5 g5 h7 b2 Kc2 b1N h6 f4 a5 f3 a6 d4 e6 Qc7 e7 Qe5 e8Q Qf5 Nh3 Ne7 Qd5 Qf6 e5 Nbc6 e6 Nf5 e7 Qg6 Bg2 Bg7 Bf4 Bb7 Qb3 d3+ Kc1 Rc8 Bd6 Na3 Nf4 Rc7 Nd5 Nc2 Kb1 d2 a7 d1N Ra5 Rg8 h8Q Nb2 h7 Nd3 Rb5 Ba8 Rb8 Be5 Nf6+ Kf4 Rh5 g4 Rh6 g3 Bh1 g2 Qg7 g1N h8Q Ne2 Qhh7 Ke3 Qhh8 Qh7 Qg4 Rg6 Qef8 Rg8 e8B Qg6 Qe7 Nef4 Bd7 Rg7 Ne8 Rg8 Qeh4 Nce7 Bc6 Rg7 Be4 Rh7 Qf8 Bh8 Qff6 Rc6 Qhg3 Ra6 Qfh4 Ra3 Bd5 Rg7 Bg8 Ra2 Bh7 Ned5 Rb5 Rc7 Rb8 Nde7 Qe1+
3B3b/1Q1n4/b2n2B1/nQP1R1Pk/1KB1r1R1/B3n2p/q2RPb1P/r3N3 b - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 dxe5 Be7 a4 Bd6 axb5 Bf8 f4 f6 Nc3 Bd6 Nd5 Bf8 exf6 g6 f5 g5 Nf4 gxf4 Kd2 Kf7 Kc3 d5 g4 h5 b6 a5 c6 a4 c7 h4 g5 a3 b7 h3 Bg2 f3 Ra2 f2 Nf3 f1N Rg1 Rh4 Ne1 Re4 Qd3 Ne3 Qb5 Nd7 b8Q Nc4 Q8b7 Ne7 Kb4 Nd6+ c4 d4 Rd2 a2 Ba3 a1B c5 Bg7 Bh1 Bh8 Rg4 Qg8 Bg2 Re5 Bc6 d3 Be4 Bd4 Bd5+ Re6 Bb3 Bf2 Bc4 Kf8 f7 Kg7 f8R Re4 f6+ Kg6 f7 Kh5 Re8 Nc6+ Kb3 Ra7 f8B Na5+ Kb4 Ra8 Re5 Qe6 Rc2 d2 Be7 d1N Rd2 Ne3 Bd8 Ra7 Q7c6 Ba6 c8B Qd5 Qcb7 Qd4 Q5c6 Qa1 Qbb5 Qa2 Qcb7 Nf6 Bf5 Nd7 Bh7 Qa1 Rc2 Nb3 Qc7 Bc8 Rd2 Ra5 Bc1 Ba6 Qcb6 Qb2 Qb7 Ra1 Bf5 Qa2 Ba3 Na5 Bg6+
NRRn2N1/n3K2B/2N1p3/2Q1P3/q1krPP2/3brbPn/5r2/3QRRn1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 f5 h4 f4 hxg5 Nh6 e4 Ng8 d4 Bg7 Be3 Be5 dxe5 fxe3 Ke2 Kd7 Kf3 h5 Kf4 c5 Kf5 a5 f4 c4 b4 a4 b6 e6+ Kg6 a3 Kf7 h4 b7 h3 g3 e2 g6 e1N g7 h2 b5 a2 b6 c3 d6 Kc6 d7 Kc5 Qc2 Nd3 Nd2 Nc6 b8N Ra4 b7 Qa5 d8R Nf2 Rc1 a1R Ngf3 Na7 Nh4 Ne7 g8Q Nh3 Qf8 Rd4 Re1 Qa4 Nc4 Ra3 Qd1 c2 Nc6 c1N b8R Re3 Ng6 Ba6 Rdc8 Ne2 Nb6 Bd3 Na8 Neg1 Be2 Kc4 Bg4 Rh6 Bf5 Rh4 Nb4+ Nec6 Ne7 Rh6 Ng8 Rh7+ Ke8 Rc7 Bh7 Nd8+ Nc6 Rb7 Bg6 Rb2 Ke7 Rf2 Rf1 Ne2 Rhg1 h1B Bh7 Bg2 Re1 Bf3 Rgf1 Neg1 Kf6 Qb3 Qa3 Qb5 Ke7 Qa4 Qc5+
R4r1r/b2q1P2/2Q5/1nBRPQN1/b1B3P1/p2bKbn1/1PR4r/3k1BR1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 h4 Bb7 hxg5 Bc8 d4 f5 d6 f4 d5 f3 Ra3 Nd7 Rxf3 Qe7 Na3 Nb8 Rf7 Qd7 Nc2 Qd8 Nd4 exd4 Kd2 h5 g4 c5 f4 a5 e4 h4 g6 d3 f5 a4 b6 c4 b7 a3 e5 c3+ Ke3 c2 f6 h3 g7 d2 Rc7 h2 d7+ Kf7 d6 Kg6 f7 Kg5 Ba6 Nc6 b8R Nf6 g8B Na7 Kf3 Ne4 Bf1 Ng3 Ke3 Nb5 Bh7 Ba6 Qf3 d1B Qc6 Qe8 d8R Qd7 Bd2 c1R Bb4 Ba4 Bhd3 Rc2 Nh3+ Kh4 Rg1 h1B Bc4 Bf3 Ng5 Rh2 Bc5 Be7 Rdc8 Bd8 Ra7 Bb6 Rbb7 Rb8 Ra8 Ba7 Rcc7 Rbf8 Rcc8 Qd8 d7 Qc7 d8Q Qd7 Qdf6 Ne4 Rh1 Kg3 Bfd3 Kg2 Qf5 Ng3 Rc1 Ne2 Rc2 Kf1 Rbc7 Ke1 Rd8 Ng3 Bf1 Kd1 Rg2 Nd6 Rg1 B6b5 Be6 Bd3 Bc4 Nb5 Rcc8 Qe8 Rd5 Qd7 Rcb8 Nd4 Rb3 Nb5 Rc3 Rb8 Rc2 Rbg8 Rh1 Rf8 Rg1
4N1q1/1Q3R1q/6pb/1QNP2b1/K1Bk1P2/2b1P1Q1/1P1NnRn1/Q1rr3b b - - 0 1 illegal: No possible last move
8/Bq2P2B/N2PKbR1/r3QP2/3Q3b/1PQ1pn1b/2q1nk2/1rbBNQ2 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 e5 d4 f5 Ra4 Kd7 dxe5 Ke7 e6 Ke8 e5 Qd7 Rg4 Qd8 Re4 fxe4 Kd2 Ke7 Ke3 a5 Kf4 g5+ Kf5 c5 h4 g4 f4 a4 b3 c4 b6 a3 h6 c3 b7 g3 h5 g2 h7 a2 h6 a1Q Nf3 g1B Be3 c2 Nc3 c1B Na2 Ra6 Nb4 Qb6 Bd3 Ra5 Na6 Qc3 Ne1 Nc6 b8Q Bf2 Rg1 Bh4 Rg6 Qb7 Ba7 e3 Bc2 Bg7 Qd4 Bd7 Bd1 Nf6 Qc7 Rg8 h8Q Ne4 h7 Qc2 Qc3 Bgf6 d6+ Ke8 Qb6 Rf8 Qbd4 Nd2+ Qcd3 Kd8 Qg7 Nf3 h8Q Nb4 Qgh6 Nd5 Qg5 Ke8 Qg1 Kd8 Qh1 Nc3 Qg7 Ne2 Qc3 Bc6 e7+ Kd7 Qd4 Bb5 e6+ Kc6 Qh8 Ra8 Qg7 Ra1 Qh8 Rb1 e8B+ Qd7 Bf7 Qb7 e7 Bc4 Bg8 Be6+ Ke4 Bh3 Bh7 Bg2 Kf5 Bf1 Bb8 Bg2 Ke6 Bh3+ f5 Ra7 Nc5 Raa1 Ba7 Ra5 Qf4 Bg2 Qc3 Bh3 Kf7 Kd5 Na6 Bg2 Qa4 Bh3 Qaa1 Ke4 Ke6 Bfg5 Qhf6 Kf4 Qh8 Kg3 Qhe5+ Kf2 Qcd4 Bf6 Qab2 Ng3 Qbc3 Ne2 Qf1+
1Kn1b2n/1Pr1n1bk/P2NQ1BP/1PBR1q2/1q3r2/NN2p3/B7/1Q1n1B2 b - - 0 1 legal: proof: d4 b5 c4 f5 cxb5 h5 g4 e5 gxh5 Rh6 dxe5 Rh8 a4 Kf7 b4 Bb7 e4 Bc5 e6+ Ke8 e5 Bf8 Ra3 Bc8 Re3 Rh7 Re4 Rh8 Be3 fxe4 Bd4 Nf6 Bxa7 Ng8 Ke2 c5 Ke3 d5 Kf4 c4 h4 d4 b6 d3 a5 d2 b7 e3 a6 c3 b5 g6 e7 Kf7 e8B+ Kg7 e6 c2 Ke5 c1Q f4 g5 f5 g4 h6+ Kh7 e7 g3 h5 g2 f6 Qd3 f7 Qcc2 Nf3 g1N Na3 Qc6 Nd4 Nh3 Bc5 Ng5 Qb1 d1N Nb3 Qd7 Rh2 Qg4 Rd2 Qdf5+ Kd6 Qh4 Kc7 Qb4 Rd5 Bg7 f8Q Nd7 Qf7 Nb6 Qe6 Bd7 Bf7 Rf8 e8B Nc8 Kb8 Nge7 Qf6 Rhg8 Qe6 Kh8 Bg6 Rf6 Bef7 Be8 h7 Rf8 Qee4 Rc6 Qe5 Rc7 Qe6 Qfe4 Bg8 Rf4 B8f7 Qf5 Bg8 Bf6 B8f7 Kg7 h8N Be5 Bg8 Bd4 Nf7 Ba1 Nd6 Nf7 h6+ Kh8 Bh5 Be5 Bh7 Bg7 B7g6 Kg8 Bhe2 Kh8 Bc4 Kg8 Qf6 Nh8 Qe6+ Qf7 Na1 Bf8 Qg4 Bg7 Ba2 Qe6 Nb3 Qf6 Qd7 Qf5 Bf7+ Kh7 Qe6 Bd7 Bh5 Be8 Bg6+
n2R2RB/P3k2K/B1R4N/QBbP1P2/n2qrQ2/1rpPq3/3B4/r4br1 b - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 a4 cxd5 a3 bxa3 Ra5 a4 Ra6 a5 Ra8 g4 h5 g5 g6 Na3 Qd7 Nc4 Qd6 Ne3 Qd7 fxg6 Qd6 f5 Qd8 Ng4 hxg4 Kf2 c5 Ke3 b5 Kf4 e6 h4 g3 h5 g2 a6 c4 a7 c3 h6 b4 g7 b3 g6 b2 h7 b1Q Ba6 Qf6 Nf3 g1R Qf1 Nd7 Rh6 Bb4 Nh2 Be7 Ng4 Nb6 a4 Bb7 a5 Na4 Ra3 Rb8 a8Q Bc5 Rb3 Qe5+ Kg5 Ne7 g8B Nc8 g7 Qd4 Kg6 e5 Qf4 e4 Bf7+ Ke7 g8R e3 Be8 e2 Beb5 e1R Rd8 Rf8 h8B Qbe4 Kh7 Ncb6 Rc6 Qee3 Nh6 Rfg8 Rb4 R8g4 Rc4 Bc8 Rg6 Bd7 Rgg8 Rd1 Qa7 Na8 Qb6 Be8 d3 Bh5 Bd2 Ra1 Bb7 Rh4 a6 Be2 a7 Bf1 B7a6 Rb7 Qa5 Rb6 Qf3 Re4 Qf4 Rb8 Be8 Rb3 Beb5 Bb6 Rcc8 Bc5 Rc6
b7/Q3K3/q1Qnn2n/3P2BQ/kp4Qr/bRNPPN1N/2Pn1q2/R6n b - - 0 1 legal: proof: g4 a5 b4 e5 bxa5 d5 e3 h5 gxh5 b5 Bh3 e4 Bg2 Ra6 Bf1 Rf6 Bh3 Rf3 Be6 d4 exd4 e3 d5 e2 Bf5 Re3 fxe3 c6 Bd3 b4 Bb5 cxb5 Kf2 Qb6 Nf3 Qc7 Ng1 Qd8 Kg3 Kd7 Kf4 e1N Kf5 g5 h4 g4 a6 b3 h6 b2 h7 g3 h5 g2 h6 Qa5 a7 Ba3 a8N b4 Nc7 Nc6 Nb5 Nd8 Qg4 Nd3 Nh3 Ne5 d3 g1Q Nd2 b1N Bb2 Qa6 Nf3 Ne6 Bd4 Nc4 Bf6 Nbd2 Bg5 Qf2 Rhb1 Bb7 Rb3 f6 Kg6 f5 Kf7 Kc8 Ke8 Ba8 Kf7 Kb7 Ke8 Bb2 a4 Kb6 a5+ Kc5 Kf7 f4 Ke8 Ba3 Kf7 Qd6 a6 Kb6 a7 Ka5 Ke8 Qa6 Kf7 Ka4 Ke8 Bb7 a8Q Nd6+ Kd7 Qh2 Qc8 Ba8 Qc6 Qf2 Qf5 Nf6+ Ke7 Ng4 Qg6 N2e4 Qg8 Ng3 Qb8 Nh1 Qa7 Rf8 h8Q Rf5 h7 Nh6 Nfd4 f3 Qg7 Rf4 h8Q Rh4 Qgg8 Qe2 Qhh7 f2 Nf3 f1N Qhg6 Qd2 Qh5 Qf2 Qgg6 Nd2 Qg4 Qe2 Q6h5 Qf2 Nc3+
rqkb1qQn/1b6/5Pr1/3P3K/1PBPBR2/B1B2p2/1r1Nq3/Q3r1QR b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g5 a4 Kd7 axb5 Bg7 f4 Bh6 f6 Bf8 f5 Ke8 h4 Bd7 g4 Bg7 h5 Bf8 Nc3 Nc6 Nce2 Bc8 Nf4 gxf4 g5 Ne5 Qe2 Nh6 Qd1 Ng6 hxg6 Ng8 Kf2 Kd7 Kf3 h5 b4 c5 d4 a5 b6 e5 f7 a4 b7 h4 Kg4 h3 b8Q a3 g7 e4 g6 c4 f6 e3 Ra2 c3 Qb3 c2 Bc4 h2 Qd3 e2 Qa7+ Bb7 Ra1 e1R Nf3 a2 Qd2 Kc8 Qc3 Nh6+ Kh5 Be7 f8B Rg8 Bd2 c1R Qe3 Rc2 Bc3 Nf7 Qg1 Nh8 Nd2 Rb2 Rb1 a1Q Qa2 Re3 Rf1 Qe1 Qa1 Qb6 Rf2 Bd8 Rf3 Qe2 Bd6 Rge8 g8B Qc5 Bb8 Qf8 g7 R3e7 Bh7 Re5+ Kh4 Rg5 Be4 Rg6 g8Q Re7 Rh3 f3 Kh5 Re8 Rh4 Re6 Bf4 Re8 Be3 Re7 Rf4 Re6 Qg3 Re7 Rg1 h1Q+ Qh2 Qhg2 Rh1 Qg3 Qhg1 Re6 Nf1 Re7 Bc1 Re8 Nd2 Re6 Rfh4 Qb8 Rf4 Qg2 Bed3 Re1 Bb1 Qe2 Be4 Rba2 Ba3 Rc2 Qc1 Rb2 Qa1
n1K2Q2/r5bB/1Pbp4/7B/2PP1q1N/N1Nb1qQr/k2PbN2/1rB2R2 b - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 fxe5 c5 g4 Bd6 gxh5 Bf8 b4 Qg5 e3 Qf6 b6 Nc6 b5 Qe7 Ra4 Qd8 Rb4 Nd4 exd4 cxb4 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 Kf5 g5 h4 a5 h6 d6+ e6 g4 c3 a4 h5 g3 b7 g2 b8N a3 h7 a2 b6 a1R h6 b3 Rh2 b2 Ne2 Kc4 Nd7 g1Q e7 Bb7 e8B Ne7+ Kf6 Qh1 Nc5 Bc6 Qe1 R8a7 Nd3 Kb3 c4 Ka2 Na3 b1B Nf2 Bd3 Rh3 Rb1 Rf3 Qd7 Bh3 Qf1 Bf5 Qb7 Be4 Nd5+ Kf5 f6 Ke6 f5 Bh5 f4 Nc3+ Kb3 Beg6 Bg7 Bf5 Nc7+ Ke7 Rb8 h8Q Na8+ Ke6 Rf8 h7 Rf7 Qb8 Rf8 Qe5 Rh8 Qf8 Be2 Bfg6 Bd3 Qg5 Be2 Qg3 Bd3 Re3 f3 Re1 Be2 Nfd1 Qf2 Rf1 Qe3+ Be4 Qf4 Beg6 f2 Bf5 Rg8 h8N Bd3 Ng6 Rh8 Nh4 Rh7 Rh1 f1B Nf2 Bfe2 Rf1 Rh8 Nd5 Ka2 Bh7 Bd7+ Ke7 Bc6+ Kd8 Qbf7 Kc8 Qf3 B7g6 Q7f4 Be4 Rh6 Bh7 Rg6 Qh2 Rg3 Qg2 Rh3 Qg5 Nc7 Qg3 Na8 Nc3+
6r1/3Pb3/NP1q4/pNPbP1Q1/R1R1QQ2/B1bK3n/1k3qq1/br2NQ2 b - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 d5 exd5 c6 a4 Qd7 axb5 Qc7 b6 Qd8 f4 e5 b4 e4 b5 Bf5 b7 Nd7 b6 Ne5 fxe5 Bc8 Bb5 cxb5 Ke2 Kd7 b8Q a5 c4 g5 h4 f5 d4 e3 h6 b4 c5 b3 h7 b2 h5 f4 d6 Kc6 d7 Kb5 h6 Kb4 d5 f3+ Kd3 e2 d6 e1B Be3 g4 Na3 b1Q+ Nc2+ Kb3 Qb7 g3 Qe4 g2 Bd2 f2 Bb4 Bc3 Rh4 Kb2 Qf1 Bb7 Ra4 Qa2 Nf3 g1B Nfe1 Be7 Na3 Rc8 Nb5 Bd5 Nc7 Rb8 Na6 Nf6 Qf4 Rf8 h8N Ne4 h7 Ng5 Nf7 Nh3 h8Q Qc7 d8Q Rg8 d7 Qd6 Qh5 Rg2 Qc7 Rbg8 Qb7 Rh2 Qg2 Rh1 Qgg5 f1Q+ Qe2+ Ka1 Qa8 Qg2 Qef1 Kb2 Qb7 Bgd4 Qc6 Qc7 Nd6 Qf2 Nb5 Rg1 Qcf6 Qd6 Qfg2 Rf1 Qge4 Rh1 Ng2 Rb1 Ne1 Kb3 Q6f5 Ba1 Qf7 Kb2 Q7f6 Qg2 Qf1 Bc3 Q6f4 Qf2 Qfg3 Qg1 Qh7 Kb3 Rc4 Qaf2 Q3f4 Qgg2 Qhe4 Kb2 Ba3+
1Rn2NK1/nPQqRRB1/1rBp1PP1/2bnPqBq/1k1B4/8/8/1r2Q2n b - - 0 1 legal: proof: g4 b5 d4 f5 a4 e5 axb5 g5 h3 Bb7 Nc3 Bf3 gxf5 g4 Nd5 g3 Ra3 Bg4 hxg4 Nh6 Ra1 Ng8 Nf4 c6 Ne6 c5 dxc5 Bg7 Nd4 exd4 Bf4 Bh6 Bc1 Bf8 Kd2 Ke7 Kd3 h5 Kc4 a5 Kd5 h4 f4 d6 b4 h3 e4 g2 c4 d3 b6 h2 e5 d2 f6+ Kd7 g5 a4 f7 a3 b7 a2 g6 Qg5 f5 Ra5 b5 Ra4 c6+ Kc7 Ke6 Kb6 c5+ Ka5 c7 Nd7 b8B Ra3 c8R Ngf6 b6 Nh5 b7 Kb4 c6 Ra6 c7 Nb6 Ne2 g1N Nd4 Nf3 Bb5 Nf6 Qe1 Bh6 f8B Nfd5 Kf7 Qg4 f6 Qf5 Bg7 Be3 Re8 Nc8 Bc6 Rb6 Ne6 Bc5 Ba7 Nd4 Re7 Nb5 Nf8 Rh3 Kg8 Rb3 Rf7 Rb1 Re7 Nbc3 Rf7 d1Q Bg5 Qh5 Re7 Rd1 Rc1 a1Q Rc2 Rb1 Ra2 Rb5 Bb6 Qb2 Ra8 Qa2 Rb8 Qa4 Rg1 h1N Rf1 Be3 Bd4 Bg1 Rf2 Rb6 Rd2 Nb5 Rc2+ Ka3 Rc3+ Kb4 Rf7 Qd7 Re7 Qc2 Rf7 Qcf5 Re7 Nca7 c8Q Bf2 Qc7 Nc8 Qe4 Nba7 Rh3 Qhg4 Rh7 Qh5 Qe1+ Kb3 Ba1 Bc5 Bd4 Kc4 B7h6 Kb3 Rhf7 Kc4 Bg7 Kb3 Qg3+ Kb4 Qe1+
n1K1nb2/pB3R1q/2B1r3/1P1P3n/R1P4B/6Pr/Nk4Bn/qRrQ1Q2 b - - 0 1 illegal: No possible last move
2N1QQ1R/pk2KQP1/bN1P2P1/2rR3n/B1qn2R1/4P1qr/r7/2Qr1q2 b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 g5 c4 Bd7 cxd5 Bg4 b3 Bc8 h4 Ne7 g4 Rg8 Ba3 Nd7 Bc5 Ba6 Be3 Bc8 Bf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Nb8 Nh3 Rh8 Ng1 Ng8 g7 Kd7 Kf2 c5 Kf3 Kc7 Ke4 h5 d4 h4 g6 f6 b6+ Kb7 e6 h3 Kf5 h2 e3 f3 b4 c4 b5 Qc7 Ra4 Qd6 Na3 c3 Ne2 f2 Nc4 c2 Ng3 c1Q Ne4 Nc6 Qc2 Kb8 b7 Qe7 Ned6 Kc7 b8Q+ Kd8 b6 Qc7 b7 Rh6 Bg2 f1R+ Bf3 Rg1 Bd1 Rg2 Qb2 Qc3 Qc1 Ra2 Rb4 Qe1 Ba4 Qg3 Rd1 h1R Rd2 R6h3 Rd1 Qd7 Qc7+ Ke7 b8R Ba6 Rf8 Rc8 Nb6 Re1 Rd3 Rd1 Qb7 Rc7 Rc4 Qe8 Ndc8+ Kd8 Rb4 Ne5 Rd2 Nf3 Rc4 Rc6 Qf7 Rc7 Rb4 Rc3 e7+ Kc7 Ke6 f5 d6+ Kb8 d5 f4 d7 Kb7 d8Q Nf6 d6 Rc5 Rd5 Qb5 Na8 Nh5 Nab6 Qd3 Re4 Qc4 Rh8 Nd4+ Kd7 f3 Qdf8 f2 e8Q f1Q Ke7 Nb3 Rf4 Nd4 Rg4
1Q1RrbR1/P6K/1B6/1k1b1PR1/Bnn1p2n/2B1N1Q1/rP4bP/Bn1n4 b - - 0 1 illegal: Other
2B1R1b1/3rNrq1/r2R1P1B/p2r2Qk/1R3P2/Pnb1KPb1/Q4R1b/2Q5 b - - 0 1 illegal: No possible last move, all moves rejected
Bnb1N3/p2PP1Rn/qPQ1R1nk/rBK1P3/3R3n/2B2r2/Br6/r2Q4 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 e5 f4 Bd7 fxe5 Bh3 Na3 Bc8 h4 Qe7 g4 Qd6 Nc4 Ke7 Ne3 Bb7 Ng2 Bc8 Nf4 gxf4 g5 Bh6 g6 Bg5 hxg5 Ke8 Nh3 Qf6 Ng1 Qd8 Kf2 Kf8 d4 Kg7 b4 h5 e4 f5 d6 c5 d5 c4 e6 h4 e7 c3 b6 f3 Ke3 f4+ Kd4 c2 e5 h3 d7 f2 b7 h2 d6 f3 b5 Nh6 b6 Nf7 Ne2 Qc7 d8R Be6 Bb2 c1N Nf4 Qc8 Bc3 Nd3 Nd5 Nf4 Bb5 f1N Nc7 f2 Kc5 Ne3 Rc1 f1R Rg1 h1R Rg3 Nc6 b8Q R8h2 Qb7 Nb8 Qc6 Qa6 Rg1 Bc8 Ne8+ Kh8 g7+ Kh7 g6+ Kh6 g8B Nf5 g7 Nh4 Rd7 Ng5 Bd5 Rf3 g8B Nh7 Rg7 Nfg6 Ba2 Rb2 Bgd5 Rf4 Rc2 Ra4 Rd2 Ra3 Rd4 Ra5 Rc7 Rg1 d7 Rf1 Qf6 Rh1 Rc6 Rf1 Re6 Rg1 Qg4 Ra1 Qd1 Nc6 Qf7 Bb7 Nc7 Rf8 Ne8 Nb8 Qff3 Bc8 Ba8 Rf4 Qe4 Rf3 Qc6
2r5/n1RB1Q1b/1p3BPQ/1BBPNK1n/6p1/br3Pqn/kPRb2R1/8 b - - 0 1 legal: proof: c4 f5 a4 d5 cxd5 b6 a5 f4 a6 f3 exf3 Qd6 Ra5 Qc6 Ra1 Qb7 axb7 Be6 Ra5 Bh3 Ra1 Bc8 g4 h5 g5 g6 f4 Bf5 f3 Bg4 Na3 Be6 Nc4 Bc8 Ne5 Bh6 f5 Bf8 Ng4 hxg4 fxg6 Rh4 Ra3 Rh6 Ra1 Rh8 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 h4 a5 d6 e5+ Ke4 c5 d7 a4 d8B c4 g7 c3 h5 c2 h6 Kb3 h7 a3 Be3 a2 Rc1 a1Q Bb5 Ra3 Nh3 Nc6 b8R Ka2 Nf2 Na7 Rh2 Rb3 Rg2 Ba3 Nd3 Be6 Bf6 Bf5+ Kd5 e4 Ke5 Qb1 Rb7 Qa1 Bg1 e3 Rc7 e2 d5 e1B Qe2 Be4 Bc5 Bd2 Qe3 Bf5 Qf4 Bg6 Ke6 Be4 Ne5 Bg6 Bfe7 Nf6 g8B Nh5 Bf6 Bd3 Bf7 Rc8 h8Q Bh7 g6 Qb1 Bfe8 Qa1 Rd1 c1N Kf5 Ne2 Rc1 Ng1 Rc2 Qe1 Bed7 Nh3 Qe8 Qf2 Qh6 Qg3 Qf7
n4q1n/rN1P4/br2p2N/1n1pP2R/B1Q2N1P/k1Q1B3/N3b1P1/2B1Kb2 b - - 0 1 illegal: No possible last move
1kQB3q/2R1N1nr/KQ3Pr1/P3P3/n1N5/b2B1Ppp/1Qb1b2B/3qQ3 b - - 0 1 illegal: No possible last move, all moves rejected
Q2K1Nb1/qrRN1bp1/1R4n1/Pkr3nP/7n/1P1R1p2/P6Q/3Q1BqR b - - 0 1 illegal: No extended proof kernel
R3k2q/2R1P3/1Q2Pbrp/P4K2/P1bqR2N/4R1QN/2nr1pN1/n1r2B2 b - - 0 1 legal: proof: g4 a5 b4 d5 bxa5 e5 f4 d4 fxe5 d3 cxd3 Bf5 d4 Be6 d5 Bc8 g5 Ne7 g6 Ra6 gxh7 Rh6 Ba3 Rg8 h8N Rh7 Ng6 Rgh8 Bc1 Ng8 Nh4 Rh6 Ng6 R8h7 Nh8 Ra6 Bg2 Ra7 Bf1 Ra8 h4 Nh6 h5 Ng8 h6 Ra7 Ng6 Ra6 Nh8 Ra8 Ba3 Ra6 Bc5 Rg6 Be3 Rg5 Ng6 Rh8 h7 Rg3 Bh6 gxh6 Nf4 Rg7 Ng6 Be7 Bg2 Ba3 Bf1 Bf8 Qc1 Qd6 Qc3 Nf6 Na3 Bg4 Rd1 Kd8 Ra1 Na6 Rh2 Be7 Qc2 Kd7 Rb1 Ra8 Qc1 Nb8 Qd1 Ke8 Nh8 Bf8 Ra1 Qd8 Nb1 Ng8 Rh1 Bc8 Kf2 f5 Ke3 c5 Kf4 b5 d4 c4 a4 c3 e4 b4 d6 c2 d5 c1Q+ Nd2 b3 d7+ Ke7 e6 b2 e5 b1R Qb3 Na6 Rh3 Qb2 Nc4 Rc1 Re3 Nf6 Nh3 Nb4 Qd3 Qe8 d8R Ba6 Rc8 Nc2 Rc7+ Nd7 d6+ Kd8 Ra2 Be7 Ng6 Bf6 h8R Nc5 d7 Nb3 Nh4 Qd4+ Re4 Nba1 Ra3 Rb8 Qg3 Rg6 Ne3 Bc4 Neg2 Rb2 Re3 Ke7 Rg8 Qf8 Rh8 Qg7 Ra8 Qh8 Ra6 Kf8 e7+ Kf7 d8Q Ra2 Qd6 Ke8 e6 Rb2 Kf3 f4 Qb6 Ra2 Ng5 Rb2 Kg4 f3 Kf5 f2 Raa7 Ne1 Nh3 Rd2 Ra6 Nec2 Ra8+
R2k2q1/1nRP1qpR/1P2nn1p/2bPr3/1Q6/1b1PN1rQ/3N1K2/4RQB1 b - - 0 1 illegal: No proof kernel
6R1/Q2p2NQ/pRb2k1P/2q3B1/3R1nP1/2PN2Kn/br3PN1/2nqr1R1 b - - 0 1 illegal: No possible last move, all moves rejected
3B1q1N/1PPpb1Rr/1R4qn/rnb1N3/r1RP4/1NQ1p3/1P3N2/Q1K3k1 b - - 0 1 legal: proof: d4 b5 g4 f5 e4 e5 a4 h5 gxh5 c5 axb5 c4 Bd3 cxd3 f3 Bb7 exf5 e4 Nh3 e3 Ng1 Be4 fxe4 Bd6 Nh3 Ba3 Ng1 Bf8 h4 Kf7 c4 Kf6 c5 g5 c6 a5 b6 a4 h6 a3 h7 g4 h5 Kg5 b7 Kf4 e5 Kg3 e6 Kg2 f6 a2 e7 g3 e8Q Ba3 h6 Ra7 f7 Qg5 f8R Qe7 Rf6 Qe6 Nh3 Ra6 Bd2 Ra7 Ba5 Be7 Qc8 Na6 Nf2 Nc7 Nd2 Nb5 Rc1 a1R Nb3 Ra4 Bd8 R7a5 Rc4 d2+ Ke2 Qe4 Qa1 Qg6 Kd1 Bc5 Rh4 Kg1 Rg4 g2 Rg3 Kf1 Rd6 g1B Rg4 Bh2 Qc7 Qf7 Rg7 Qg6 Rf6 Kg1 Re6 Ra7 Qa5 Be7 c7 Bhd6 Qc3 Bc5 Rf6 R7a5 Rb6 Nf6 Qa3 Ng4 Qa1 Rf8 h8N Rf7 h7 Nh6 Qac1 Qg4+ Kc2+ d1Q+ Kb1 Qg3 Ng6 Qf1 h8N Qg5 Ne5 Qg4 Rg5 Rh7 Rg7 Qg5 Qd1 Qg6+ Kc1 Kh2 Nh1 Qf8 Nf2 Kg2 Qdd3 Kh2 Qb1 Kg1 Qa1
2bnr1NK/Pb2P1R1/2q1R1R1/2q3P1/k1q1pR2/B2B2P1/4Qp2/nQB3r1 b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 a5 b4 g5 bxa5 g4 Nc3 e4 Nb5 Bg7 h3 c6 hxg4 cxb5 g5 Be5 fxe5 b4 Ke2 Kd7 Ke3 h5 Kd4 f5 c4 b5 a4 h4 c5 f4 a6 b3 a5 b4 a7 b2 c6+ Kc7 a6 Kb6 d6 b1B g3 h3 d7 h2 e6 f3 Ke5 b3 d4 b2 d5 f2 c7 Nh6 d6 Qe8 Kf6 Nf5 d8Q Kc6 d7 Bc2 Nf3 b1Q Ne5+ Kc5 Bd3 Kb4 Nc6+ Kb3 Ne7 Qh5 Qe2 Nd4 Kg7 Nbc6 Ng8 Bb7 c8R Bd1 Rc7 Nc2 Qb8 Qa2 d8B Qe8 Be7 Ka4 Bea3 Nd8 e7 Qd5 Rc6 Qc5 Re6 Qec6 Rb1 Na1 Rb6 Qc4 Rg6 Q6c5 Rbf6 Bb3 Rf4 Bc8 Rd1 h1Q Rd2 Ba2 Qb1 Qg1 Rb2 Rh1 Rbb6 Qh2 Rbc6 Rg1 Rce6 Rb8 a8R Qh8+ Kf8 Qhc3 a7 Qc6 Rg7 Q4c5 Rgg6 Q3c4 Kg7 Bb3 Kh8 Bb7 Qf1 Bd1 Rg7 Bg4 Qe2 Bh3 Rh6 Bd7 Re6 Bdc8 Qh5 Bd7 Rgg6 Nf7+ Kh7 Re1 Qe2 Rf8 Nf6 Rg1 Kg7 Rh8 Rf8 Nd8 Rf7 Rf8 Ng8 Bdc8 Kh8 Re8 Rfg7
4n3/b1BK1p2/1pQ2r1Q/1N3n2/P1rN1qRN/4b1r1/P1Bk1P1P/QrQ5 b - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 a5 d4 a4 dxe5 a3 bxa3 h6 a4 Bc5 Nd2 Bf8 Rb1 Bd7 Rb3 Bf5 Rg3 Bg6 Rg2 Bh5 gxh5 Be7 Rg4 Bf8 Rg5 hxg5 e4 Ke7 Ke2 c5 Ke3 g4 Kf4 g5+ Kf5 c4 h6 c3 e6 Kd6 h7 Kc5 d6 Kb4 e5 g3 d7 c2 e7 Kc3 e8Q g4 e6 g2 e7 g3 Nb3 Nc6 Nf3 g1R Nh4 g2 Bf4 c1B Nd4 Nf6 Bc7 Rc8 Bd3 Be3 Qa1+ Kd2 Bc2 Rb1 Rg1 b6 Nb5 Nd4+ Ke5 Nf5 Nd4 Rg8 h8Q Rg6 Qh6 Bg7 Nb5 Bh8 Qef8 Ne8+ Qfg7 Rf6 Qgg5 Rc6+ Kd5 Be5 Qf4 Rf6 Qc4 Ned6 Kc6 Qh8 d8N Ne8+ Ne6 Qg8 Bd3 Qg4 Bc2 Qf4 Kd7 Bd6 Ned4 Be5 Re1 g1R Qc5 Rg3 Rg1 Rh3 Rg4 Rg3 Bd8 Bb8 Bc7 Ned6 e8Q Ba7 Qe4 Ne8 Bb8 Rcc6 Bc7 Nfd6 Qa3 Rc4 Qc6 Nf5 Qc1+
2kR4/3qQrn1/Rq1Q1P2/1Qpn3b/1N3P1p/2P2P1B/bBQ4b/1qR4K b - - 0 1 illegal: No possible last move, all moves rejected
1n1qRb2/4NQr1/RQ3ppR/P3nk2/2Qq3P/2B2B2/1K1PP1Qq/3b2n1 b - - 0 1 legal: proof: f4 b5 c4 e5 fxe5 d5 cxd5 a5 b4 f6 bxa5 h6 g4 Rh7 g5 Rh8 g6 Kd7 Nc3 h5 Ne4 Ra6 Nf2 Re6 Ng4 hxg4 Qb3 Re7 Qd1 Rf7 gxf7 Rh5 Bg2 Rh3 Bf1 Rh8 a4 c5 a6 g3 d6 Ke6 a7 c4 a8Q g6 d7 b4 Qb3 g2 Kd1 Na6 Kc2 Rh7 Kb2 Bb7 Nh3 g1N Bg2 Rg7 Nf4+ Kf5 e6 Bc6 e7 Nh6 e8R Ng4 Bf3 Ne5 Nd5 Nb8 Qc3 b3 Ne7+ Ke6 h3 Be4 Qd4 Bc2 Ra2 Bd1 Qde4 Qb6 d8Q Qd6 Qb6 c3+ Ka1 c2 Bb2 Nc6 Qeb4 Qd8 Bc3 Qd4 Ra3 b2+ Ka2 c1Q Qc4+ Kd7 Rh2 Nb8 Qe4 Qc2 Qg4+ Qf5 Qg2 Qh5 Kb1 Qhh4 Ra1 Qh8 Ka2 b1Q+ Ka3 Qf5 Kb2 Qff4 Rh1 Qh2 Ra2 Rh7 Ra1 Bg7 f8Q Qg8 Qff7 Bf8 Ra3 Rg7 a5 Nbc6 Ra8 Nb8 Ra6 Nec6 Ra4 Kd6 Rb4 Ke5 Rb5+ Kf4 Rh5 Ne5 Rh6 Qh8 h4 Qg3 Rh3 Qh2 Bg4 Qg8 Re3 Qh8 Bf3 Qg8 Qe8 Qd5 Qf7 Qd8 Ng8 Kf5 Re4 Nec6 Re8 Ne5 Ne7+
4K3/Bk2R1qR/1bP4P/1R1Rr1PN/3NQpn1/p4r2/2n2PQ1/1qNq1n2 b - - 0 1 illegal: No possible last move
Q3BR1k/2bn1KRB/BP3R2/p2pb3/Pq6/1P3q1N/qP6/nnB1r1Q1 b - - 0 1 illegal: No proof kernel
1b1RQq2/r4P1q/1NPn4/1p1pN3/2r2r2/1BkP1PQ1/1bQ1QK2/B1bB4 b - - 0 1 legal: proof: b4 f5 e4 b5 exf5 c6 a4 Qb6 axb5 Qc5 b6 Bb7 b5 Qb4 Ra5 Bc8 b7 Qd6 b6 Qc7 Rb5 Qd8 Bd3 cxb5 Bf1 g5 h3 d6 h4 g4 Bc4 Bd7 Bf1 Na6 f3 Bc6 f4 Bf3 gxf3 Nc5 Na3 Ne4 Nb1 Ng5 hxg5 Bh6 Bc4 Bg7 Bf1 Bf8 b8Q Kf7 c4 a5 c5 e5 d3 h5 f6 Ke6 f5+ Kd5 g6 Kd4 c6 a4 g7 a3 b7 h4 f7 h3 f6 h2 Qd2 g3 Qa2 e4 Qf2+ e3 Nd2 g2 Qe2 a2 Nc4 a1B Ne5 Ra7 Nh3 g1R Nf4 Rh4 Nd5 Bb2 Nb6 Ne7 g8B Bh6 f8Q Nf5 Bb3 d5 f7 Nd6 Qc7 Rg6 b8Q Rf6 Qe8 Bf4 Qce7 Kc3 Qd1 e2 Kf2 Rf5 Rg1 h1Q Rg8 Bg5 Bf4 Rg4 Qb1 Qh7 Be3 Rc4 Bd4+ Kb4 Rh8 Bgc1 Rg8 Rf4 Qe6 Ba3 Ba1 Bab2 Qc7 Kc3 Q6e7 Nf5 Qcd6 Qb8 Qg6 Nd6 Qg3 e1B+ Kg2 Bf2 Qc8 Qe4 Ng6 Bd4 Be2 Qf5 Bed1 Nb7 Qe2 Be5 Kf2 Qd6 Re8 Qf8 Qa8 Bc7 Ne5 Nd6 Qc8 Qh3 Qe6 Qhh8 Rd8 Qh7 Qe8 Bb8 Qbc2+
6rn/KQ2rp2/2N2P1P/kqpB4/1NPQN1Rn/5r1b/3qRR1P/3n3R b - - 0 1 legal: proof: d4 a5 g4 b5 a4 h5 gxh5 e5 dxe5 Bd6 b4 Rh6 bxa5 b4 a6 Rg6 a7 Bc5 a5 Bb6 axb6 Rh6 b7 Rh8 Be3 Qg5 Bc5 Qh4 Be7 Qg5 Bd8 Qxd8 Kd2 c5 Kd3 d5 f4 Kd7 e4 Kc7 f5 Kb6 h6 g5 f6 g4 e6 g3 e7 d4 Kc4 d3 e8R g2 e5 b3 e6 b2 e7 d2 Nf3 g1R Ra4 Qd6 Bg2 Qg3 Nc3 b1Q Ne5 Nd7 b8N Re1 Bd5 Qf4+ Ne4 Nf8 Nbc6 Ng6 Nb4 Bh3 Nec6 Nh4 c3 Rd8 a8Q Rd7 Rd8 Rf1 e8R Rf3 Qg1 d1N Qd4 Ra7 Ra2 Qg5 Rf2 Ne7 Rg8 Rb7 Rde8 Qd2 Rg4 Neg6 Qc8 Re7 Qa8 Kc7 Kb5 Rg8 Ka6 Nh8 Ka7 Qbd3 Nd6 Qb5 c4 Rd7 Ree2 Re7 Qe8 Rg3 Ne4 Rf3 Ka8 Kb6 Qc8 Nf5 Kb8 Nh4 Na7 Rg5 Qb7+ Ka5 Nac6+ Ka4 Ka7 Rg8 Nb8 Ka5 N8c6+
4K3/3PBN1b/r1P2q1p/4n1R1/Pb2pNP1/Qr1QkbR1/1Nq2R1N/1q6 b - - 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 d4 c5 dxc5 f5 h4 d4 hxg5 Nc6 Be2 Nb4 Bd3 Nd5 exd5 Qb6 Be4 fxe4 Qd2 Qc7 Qd1 Qd8 Kd2 Kf7 c4 Kg6 f4 Kf5 g4+ Kg6 c6 e5 c7 b5 f5+ Kg7 g6 Kf6 d6 Kg5 d7 Kf4 f6 d3 Kc3+ d2 c5 h6 Kb4 e3 a6 e2 g7 e1Q a7 e4 f7 Rh7 Rh3 Qe2 Nc3 Qe1 Na4 Ba6 c8N Qb6 Nf3 Rb8 a8Q Qf6 Rg3 Rh8 Nb2 Rb7 Nh2 Qe2 Nd6 Ne7 g8R Ng6 c6 Ne5 Kc5 b4 Rg5 Bc4 Qa3 b3 Qc2 Be7 f8N Bg8 Qd3 Bh7 Kd5 Ra7 Nf7 Bb4 Rb1 Ra6 Ra1 Qd8 Ke6 Qd1 Rb1 Qc2 Ra1 Bc3 Kd6 Qf6+ Kc7 Bb4 Kc8 Qf5 Kd8 Qf6+ Ke8 Rg8 Re3 d1B Bd2 Ba5 Bb4 Bf3 Be7 Bb4 Rg1 Rh8 Re2 Rg8 Rf2 Rh8 Nd1 b2 Rg3 b1Q Nb2 Ba5 Qad6 Bb4 a4 Rg8 Q3d5 Ke3 Qc4 Rg6 Ne6 Rg7 Nf4 Rg6 Rf5 Rg5 Qb5 Rh5 Rg5 Rh3 Qbd5 Bc5 Qa2 Bb4 Qa3+ Qd3 Rf1 Kd2 Rh5 Be2 Rgg1 Re3 Rg3 Bf3 Qc7 Qc3 Rg5 Qcc2 Qd6+ Rd3 Rf2+ Ke3 Qd5 Rb3 Qd3+
2K3N1/2P5/1q2r2R/1nbPN2B/P1R1pk2/N3qPR1/nQpR2Q1/r1q4r b - - 0 1 legal: proof: e4 d5 b4 a5 g4 c5 c4 h5 cxd5 f5 gxh5 Qd6 exf5 Bd7 b5 Qb6 Ba3 Bc6 bxc6 Qd8 Bb4 axb4 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 Kb5 g5 h4 b3 d4+ Ke4 a4 e5 h6 g4 h5 b6 h7 g3 h6 b2 c7 g2 d6 c4 f6 c3 f7 c2 d7 Bb4 f8R Qc8 d8R Qh3 Nf3 g1Q Ra3 Nf6 Qd2 Nc6 Be2 Na7+ Ka6 b5 Kb7 Qc1 Rc3 Nd5 Na3 b1Q Rg8 Qe6 Rg3 Bc5 Rc4 b4 Rd6 Rhe8 h8N b3 h7 b2 Ng6 Nb4 h8Q Nb5 Rh6 Na2 Ne7 Qh3 Ng8 Re6 Rd7 Kf5 Rd8 e4 Ne5 Raa6 Bd1 Ra5 Qe2 Kf4 Kc8 Raa6 Rd5 Rad6 Qf1 Rd7 Bh5 Rh7 Rgg6 Qb3 f3 Qce3 Qh3 Qbc1 Rg3 b1R Qg2 Ra1 Rd7 Qb4 d5 Qbc3 Rdg7 Qa5 R7g4+ Kf5 Rh4 Qb6 Rh1 Kf4 Rd1 Rg7 Rd3 Rg4 Rd2 Rh4 Nc6 Rh3 Qb2 Rh1 Ne5
4kb2/PK3b2/pQ3rp1/2q1P3/2QN3Q/PB4bN/RBbB1P2/1bQ2rn1 b - - 0 1 legal: proof: c4 h5 g4 d5 gxh5 a6 cxd5 Rh6 b4 Rh8 b5 Nc6 b6 Na7 bxa7 Kd7 d4 e5 a3 f5 d6 Kc6 Qb3 f4 Qf7 f3 d5+ Kc5 Ra2 Kc4 Rd2 Kb5 Rd4 exd4 Qxf3 Nh6 Qf7 Ng8 Kd2 c5 Kd3 c4+ Ke4 g6 h4 c3 h6 b6 h5 c2 d7 d3 h7 d2 d6 Kc6 h6 d1B Bd2 c1B Nc3 b5 Nh3 b4 Nb5 Qc7 d8Q b3 d7 b2 Qh4 Qd6 d8Q Qc5 Qc4 Be6 Qb6+ Kd7 Nd4 Ne7 e3 b1B+ Bd3 Rg8 h8Q Nc6 h7 Ne5 Bc2 Nf3 Q8f6 Rd8 h8B Rc8 Qff4 Bf7 Re1 Ke8 Re2 Ng1 Qfh6 Ba2 Bb3 Rc6 Bg7 Rf6 Q6f4 Bb2 Qfc7 Rh8 Qc1 Qb4 Q7c4 Bb1+ Ke5 Bdc2 e4 Re6+ Kd5 Rf6+ Qe6+ Qe7 Kc6 Bc3 Kb6 Bb4 Kc6 Bd6 Kb6 Bc7+ Kb7 Rh7 Qb6 Qc5 Bgh6 Bg3 e5 Rh8 Bhe3 Rh5 Bc3 Rg5 Bb2 Rg4 Rd2 Re4 Bf4 Re1 Re2 Bf5 Rc2 Rf1 Bd2 Bd3 Ba1 Bf5 Ra2 Bfc2 Bb2
Q1BR4/bQQb3b/1n2q2P/1P1pP3/3n3p/2P1B1Q1/NKn3Rn/R3r2k b - - 0 1 illegal: No proof kernel
n3k1B1/5QbQ/K2RbPp1/7Q/2B3n1/PR1Pqb1P/2r1nBp1/4nN1Q b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 g5 b5 f5 h6 Nc3 Ra6 Ne4 Rf6 gxf6 h5 Nf2 Kd6 Ng4 hxg4 Bh3 Kd7 Bg2 Nc6 Bf1 Nb8 Ke2 c5 Kd3 e5 d6 b4 Kc4 g6 Kb5 b3 a3 g3 h3 b2 a6 b1B a7 e4 a8B g2 Bc4 e3 Qh5 e2 Bad5 e1N Ne2 Rh7 Ng3 Qe7 Nf1 Bd3 Rb1 Rh8 Rb3 Bg7 f8Q Be2 f7 Nf6 Qg8 Na6 f8Q Bf3 Qff7 Ng4 f6 Nc7+ Ka5 Na8 Qgh7 Kd8 d7 Qe3 Bb2 Re8 Bd4 Re6 Rg1 Rc6 Be6 Qf4 Bf2 Qe3 Ba6 c4 Bd5 c3 Bac4 c2 Kb5 Kc7 d8Q+ Kb8 Qde7 c1N Qe4 Rc7 Qb1 Be6 Ka6+ Kc8 d3 Kd8 Rb6 Bd7 Rd6 Ne2 Qf8+ Qe8 Bg8 Rc5 Qf7 Qe3 Qa1 Rc7 Qae5 Rc5 Qh2 Rc8 Qh1 Rc7 Rc6 Be6 Rd6+ Rd7 Ng3 Nc2 Rb1 Ne1 Nf1 Ne5 Rdb6 Rc7 Bb3 Rc2 Bc4 Ng4 R1b2 Rc1 R2b3 Rc2 Qc7+ Ke8 Rd6 Nf4 Qb7 Ne2 Qf7+
b7/K2N4/1P2rBPQ/1kqp1r1b/N1QPPN1R/bpQ3N1/2n2R2/3br3 b - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 b5 hxg5 Bd6 a4 Bb4 axb5 Bf8 b4 c6 e3 Qc7 b6 Ne7 b7 Ng8 b5 Qd8 b6 Nh6 Be2 Ng8 Bb5 cxb5 Ke2 h5 Kd3 a5 Kd4 f5 c4 h4 g4 b4 c5 a4 c6 a3 c7 b3 g6 a2 e6 h3 g7 h2 e7 f4 Kc5 f3 d4 f2 g5 f1B g6 Nh6 g8Q Nc6 b8N Be2 Qf1 Nf5 Nh3 Nb4 Nf4 Nd6 Nc3 Nc4 Qg7 Nc2 Na4 Bh5 Qh6 d5 e4 Qd6+ Kb5 Bb7 Rb1 a1R Rb2 Rg8 Bd2 Re1 Nd7 Rg7 Ra2 Rf7 Be3 Rd8 c8Q Ba8 Ka6 Rf5 Ka7 Qc5 Bf2 Bd1 Bh4 Bh5 Bf6 Bd1 Rg1 h1B Rg4 Bhf3 Rh4 Bh5 Qc7 N2e3 Rf2 Nc2 Qc6 Rc8 Qb5 Rc6 Qb4 Re6 Qc3 Bhg4 Ne2 Bh5 Ng3 Qc8 Ne5 Qc5 Nd3 Kd7 e8N Kc6 Nf4 Nb4 Bg5 Nc2 Nf6 Kb5 Nd7 Qc6 Bd8 Ba3 Bf6 Qc5 Qfxc4+
N1n2n2/PN4p1/KNrPk2b/5n2/p1r4P/1Q4rR/Qn2P2q/2QR2BQ b - - 0 1 illegal: No proof kernel
RB5Q/Pp6/Q2PnP1K/r3n2p/4nN2/1B2B2P/1kNqn2r/N1r1bN2 b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 d5 cxd5 f5 e4 a4 e6 a3 bxa3 Ke7 a4 Ke8 a5 Qd7 Kd2 Qe7 Ke1 Qd8 g4 Qd7 f4 Nf6 a4 Rg8 e5 Ne4 e7 Rh8 Ra2 Nf6 Re2 Ng8 Re4 fxe4 f5 Qd8 f6 Bf5 gxf5 Kd7 Ke2 c5 Ke3 g5 e8N h5 h3 c4 e6+ Kc8 f7 c3 e7 Kd7 f6 g4 Kf4 e3 Kg5 g3 a6 e2 a5 e1R a7 g2 a6 c2 Bc4 Qb6 Na3 Qc7 Nf3 g1N Nd2 Qa5 Ng7 Kd6 e8Q Kc5 Nf5 Kb4 Nf1 Kc3 Nd4 Ne7 Nb3 Nbc6 Qe2 Nd4 Na1 Nef5 Bb3 Nd6 Be3 c1N N3c2 Nd3 Qb8 Be7 f8B Rg8+ Kh6 Ne4 Qe8 Ba3 Bd6 Ne5 Bb8 Rc1 d6 Rg2 Qh8 Ne6 Qb5 Ne2 Rg1 Rh2 Rg8 N4g5 Bc7 Rc8 a8N Ne4 a7 Bb4 Qa6 Kb2 Nb6 Be1 Nd5 Qb4 Nf4 Qd2 Bb8 Rc4 Bc7 Ra4 Ra8 Ra5 Bb8
2kb1b1q/1B2Q1bP/rPP3r1/5N2/b2Bp2q/PRR1Bp1n/2K2Q1R/4R3 b - - 0 1 illegal: No proof kernel
B1r1n3/2PQrR2/1k5B/4Q2b/1PpPPrB1/K4Qr1/n2qN2p/4Nq1Q b - - 0 1 legal: proof: b4 b5 f4 c5 c4 e5 fxe5 d5 h4 g5 hxg5 Be7 a3 Qd6 Ra2 Bd8 Rc2 Be7 bxc5 b4 c6 b3 Rc3 Qd8 Rc2 Bb4 axb4 Ba6 c5 Bc8 Rc4 dxc4 e4 f5 g4 a5 e6 h5 e7 f4 c7 Kd7 g6 Kc6 e8Q+ Nd7 g7 h4 g5 b2 g6 a4 Ne2 f3 Bh3 a3 Qe5 a2 Na3 b1R Bg4 a1R Rf1 h3 Nc2 Ngf6 g8Q h2 g7 Rh4 Qf8 Nb6 g8B R1a7 Bd5+ Kb5 c6 Na4 d3 f2+ Kd2 Rb3 Ne1 Nc3 Kc2 Ne8 Qf3 Kb6 Bh6 Na2 d4 Qg5 Qh1 Rg3 Kb2 Be6 c8Q Re7 c7 Bf7 Bb7 Bh5 Qd7 Rc8 Ba8 Qe3 Qb3 Qd3 Ka3 Qd2 Rg1 f1Q Qbf3 Qg2 Rf1 Qf2 Qb3 Qg2 Rf7 Qf1 Bf3 Rf4 Bg4 Ka6 Qd3 Kb6 Qdf3
3k1N2/P1QN2B1/q3rr2/3Bn3/1p2rP1P/1Pnp2q1/1rNK2QN/b1Q1R3 b - - 0 1 legal: proof: e4 a5 c4 c5 g4 h5 gxh5 f5 exf5 b5 d4 a4 b3 b4 Nd2 Ba6 Rb1 Bb5 cxb5 a3 dxc5 Ra5 Rb2 axb2 a4 Ra8 f4 b1R h4 g5 h6 d5 f6 e5 b6 d4 h7 d3 b7 e4 a5 g4 a6 g3 c6 e3 a7 e2 c7 g2 c8Q Bc5 Ndf3 Bd4 Nh2 Nd7 b8N Ne7 Ngf3 g1Q Kd2 e1R Bg2 Ba1 Bb2 Nd5 Nd4 Rf8 f7+ Ke7 Qc6 Qb6 h8Q Qa6 Qh7 Re3 Be4 Qg3 Qdc1 Re1 Bc3 Rb2+ Nc2 Re3 Be5 Nc3 Re1 Re8 Qc7 Rf8 Qf5 Re8 Bc6 Re4 Bg7 Rf8 Qh3 Re8 Qc8 Ne5 Nd7 Rb8 f8N Rb6 Qb7 Kd8 Bd5 Rf6 Qg2 Ree6 Qc7+
B5K1/4p3/1q1PP1k1/1Q4r1/q2P2R1/PpNbQqN1/qQr2NN1/4Rrn1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 f6 bxa5 Be6 Nc3 Bd7 Nb1 Bc8 e4 Ra6 e5 Bg4 g3 Ra8 Bb2 Bd7 e6 Bc8 Be5 fxe5 f4 g5 g4 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Ke2 Bh6 Ke1 Bg5 hxg5 Qd7 Bh3 Qd6 Bf1 Qd8 Kf2 c5 Ke3 h5 Ke4 b5 d4 g3 d6 b4 a6 g2 f6 b3 Kf5 c4 Kg6 h4 Kg7 c3 a3 c2 f5 c1Q g6 h3 a7 e4 Ne2 g1Q Qc2 e3 Bg2 h2 Ng3 e2 Qb2 e1R Nc3 Qf2 Rg1 Rb8 a8Q h1Q Qa5 Qb6 Ba8 Rh5 Qb5+ Qhc6 Rb1 Qcc2 Rd1 Re2 Rde1 Rg5 Rg2 Ba6 f7+ Kd8 f8N Ke8 f6 Qf3 Nd7 Nh6 Nc5 Nf5+ Kg8 Nh4 g7 Rc8 Rgg1 Rf2 Nd3 Rf1 Nf2 Qb1 Rg2 Qa2 Rg1 Qf5 Rg2 Nf3 Rg1 Qh3 Rg2 Ng1 f7+ Kd8 f8N Ke8 Ng6 Rc7 Nh5 Qf3 Ng3 Qd7 Nf4 Rc6 Qe5 Bd3 Qe3 Rcc5 Nge4 Qdc6 Rg4 Qa4 Ng3 Rc6 Nce4 Rc2 Ng2 Rf5 Kh7 Rg5 g8Q+ Qf8 Qg7 Qf3 Qe5 Kf8 Qb5 Rf5 Kg6 Kg8 Nc3 Kh8 Nf4 Rg5+ Kf7 Kh7 Kf8 Bf5 Ng2 Kg6 Kg8 Be4 Rc1 Bd3 Re1
3Bn1n1/NRpKP3/3R1P2/1p1nQrk1/1nPQ1Q1N/1P1r1r1q/1R6/1R4n1 b - - 0 2 legal: proof: e4 e5 g4 b5 d4 f5 dxe5 Be7 exf5 Kf8 a4 Bc5 a5 Bb6 axb6 Ke8 f4 h5 f6 Ba6 g5 Rh7 Be2 Rh8 Bg4 hxg4 Qd5 Qe7 Qd1 Kd8 f5 Kc8 Ra5 Qd8 Ra2 Bb7 Ra1 Bd5 g6 Bf7 gxf7 Kb7 Kf2 Kc6 Kf1 Rh3 Ke1 Rh8 Kd2 Kd5 Kc3+ Ke4 Kb4 a5+ Kc5 g5 f8Q d5 h4 d4 c4 d3 e6 d2 h5 Kf4 h6 a4 f7 a3 b7 a2 h7 g3 b3 g4 Nf3 g2 Nc3 g1R Nh4 g3 Ne2+ Kg5 Nd4 g2 Rb1 a1N Rh2 Ra6 Nc6 Qc8 Na7 Nc2 Bb2 Nb4 Bf6+ Kf4 Qe2 d1N Bd8 Rf1 e7 g1N Qe5+ Kg5 Rhb2 Rf3 Qfg7+ Rg6 f8Q Nc3 Qd4 Qe6 Qge5 Ncd5 Qf7 Rf6 Qf8 N8c6 b8R Na5 Rb7 Rd3 Qd6 Qe3 Qe5 Qg3 Qf7 Qh3 Qf8 Nh6 Qf7 Rf8 h8R Ng8 Rh6 Nac6 Qe1 Ne5 Qe2 Ng4 Qee5 Rb6 Rd6 N4f6 Rd7 Re6 Rd6 Ne8 Qff6+ Kh5 Qef4 Ree3 Qe6 Rf3 Qee5 Na2 Kc6 Nab4+ Kd7 Rf6 Qh2 Kg5 Qhf2 Re6 f6+ Rf5 Qeh2 Ree3 Qhe5 Rg3 Qh2 Rgf3 Qhf4+
5Q2/1Rb5/n2pPqk1/2n2bR1/2Qn1pPq/1NP1BQ2/Q2K1P1n/2N1Nb2 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 axb5 a5 h3 c5 dxc5 h5 Ra2 f4 Ra4 e6 Bg2 Ra6 Bd5 exd5 Ra1 Rf6 Kf1 Rf5 gxf5 g4 Ke1 g3 Bd2 Rh6 Be3 Rg6 Bc1 Rg4 hxg4 Bd6 Nc3 Be7 Nb1 Bf8 e4 Kf7 b4 h4 e5 d6 c6 a4 c3 d4 b6 d3 f6 a3 c7 a2 e6+ Kg6 b7 h3 b5 g2 b6 h2 f7 Bg7 f8Q Qf6 Nd2 Nh6 Ne2 g1N Nf3 Na6 b8N Nf5 b7 Nd4 Rb1 a1N Be3 Nab3 Nc6 Nbc5 b8Q Bh6 Rb4 Bg5 Nc1 Bd7 Na5 Bb5 Qe2 d2+ Kd1 Bd3 c8Q Bf5 Ne1 Ngf3 Rb7 Bh4 Qa8 Bg5 Rg1 h1Q Nab3 Qh4 Rh1 Nh2 Qd3 Nb5 Kc2 d1B+ Kd2 Nd4 Qe4 Bc2 Qf3 Bcd3 Qc7 Bf1 Qcc6 Nc7 Qa2 N7a6 Qb5 Qf7 Qc4 Bd8 Rg1 Qg7 Rg3 Qgh8 Rh3 Q4f6 Rh5 Bc7 Nc2 Qh4 Ne1 Q8f6 Rg5+
qN4rB/3bpP1N/1p3R2/Q2R1PNQ/bkp1PP2/2nR4/1nr3Nr/5K2 b - - 0 1 illegal: No proof kernel
b1N3n1/k1K1bB2/1PQ1PP1Q/2qPrp1N/N3R2q/1n3p2/4p1R1/N5Rr b - - 0 1 illegal: No possible last move
5rb1/4p1R1/3Q2n1/2b1p2p/P3NqPQ/3qP1PN/k2Qn1r1/1NBK1R1N b - - 0 1 legal: proof: c4 g5 b3 d5 cxd5 a5 h3 a4 bxa4 g4 hxg4 b5 a3 b4 axb4 Ba6 e3 Qc8 Bd3 Qd8 Bf5 Bc8 Be6 fxe6 f4 Kf7 d4 c5 d6 e5 d5 c4 d7 c3 b5 c2 f5 Nc6 d6 Bg7 b6 Bf6 b7 Nd4 b8N Nh6 Nh3 Ne2 Qd2 Bh4+ Nf2 Ba6 f6 Ke6 f7 Bc4 f8Q Nf5 Rf1 h5 Qg7 Rf8 Na6 Rb8 Qg5 Rb2 Ra2 Bg3 Ra1 Nh4 Nc5+ Kf7 Ne4 Ke6 Ra2 Ng6 Qh4 Bd5 Ra3 Bc4 Rb3 Bd5 Rb6 Ba2 Qc3 Kd5 Qd2+ Kc4 Rc6+ Kb3 Ra6 Qb8 d8N Qb5 d7 Qd5 Ne6 Qd3 Nbc3 Ka3 Nf4 Bg8 Nb1+ Ka2 d8Q Rb6 Ba3 Rb2 Qd6 c1Q+ Qd1 Bh7 Nh3 Qcc4 Qd2 Bg8 Kd1 Qb4 Nh1 Be1 g3 Qbd4 Nf6 Qf4 Ne4 Qd4 Qd7 Ng1 Qd3 Rg2 Rf6 Ba5 Bc1 Bb4 Qd6 Ne2 Rf7 Bc5 Rg7 Qc4 Qc3 Qd3+ Qd2+
2B2N2/4bQ1P/P1N2bbP/qRRR1P2/k2p3Q/6pK/p1nN1N2/rr1r4 b - - 0 1 illegal: No proof kernel
1NRb1qq1/B2P3p/4k3/BKp1pQ1Q/1Q6/1R2P1Bn/1Pb1Pr2/1r2r2B b - - 0 1 legal: proof: c4 a5 a4 b5 axb5 d5 cxd5 g5 h4 a4 hxg5 a3 Rh5 a2 Qb3 axb1Q Rh4 Nd7 Rh1 Nb6 Qa4 Nc4 Qd1 Ne3 fxe3 Qe4 Nh3 Qg6 Ng1 Qb1 d4 Kd7 Kd2 e5 Kc3 f5 Kc4 f4 g4 c6 b6 f3 g6 f2 b7 Ra7 b8B Qf5 d6 Ne7 g7 Bb7 g8Q Nc8 d5 Ra5 g5 Qe6 g6 Qef6 g7 Qh6 Qd3 Ra3 Ba7 Ra6 Qf7+ Be7 g8Q Ra2 Qh5 Bf6 Bd2 Qg6 Ba5 Qf8 Qdf5+ Ke8 d7+ Ke7 d8B+ Kd6 Bg2 f1R Nf3 Re1 Nd4 Ne7 Rf1 c5 Bh1 Qg1 Kb5 Ng6 Nc6 Nf4 Qgg4 Nh3 Qb4 Qgg8 Nb8 Bh4 Rd1 Ra1 Rd3 Rab1 Rb3 Bc8 Bg5 Be6 Bf4 Bd8 Bg3 Bc8 Qff4 Bf5 Qfe4 Ke7 d6+ Ke6 Qf4 Bc2 d7 Qgf7 Rf2 Rg8 Qff3 Rg7 Qfe4 Q7g8 Rf5 Rf7 Rg5 Rf2 Qf5+ Ke7 Rg6 Qff7 Rc6 Qff8 Rc8 Kd6 Qff4 Ke6 Qff5+
1nNR4/3pP1kQ/3p3N/7r/P2qb2Q/3Pp2P/1N2b1rr/1KBN1BQq b - - 0 1 legal: proof: b4 h5 g4 a5 gxh5 Ra7 bxa5 Nf6 a4 Ra6 Ra3 Ng8 Rd3 Ra8 Rd6 cxd6 e4 f5 e5 e6 Bb2 Be7 Bc1 Bf6 f4 Nc6 exf6 e5 Nf3 e4 Ng1 Ne5 fxe5 Rh7 Bc4 Rh6 Bf1 Rh8 c4 Kf8 a6 g5 c5 b5 h6 g4 e6 f4 f7 e3 d3 b4 c6 g3 h7 f3 c7 g2 e7+ Kg7 f8Q+ Kg6 a7 b3 Na3 b2 Qf5+ Kg7 Nh3 g1R Nc4 b1Q Nb2 Nh6 Nf2 Bb7 c8N Ng4 h3 Rb8 a8Q Rg2 Rg1 Ne5 Qa5 Ba8 Qb4 Nc6 Qc4 Qb6 Qh4 Re8 h8N Qd4 Nf7 Rh8 Nh6 Qa1 Ne4 f2+ Ke2 Rb3 Nc3 Nb8 Qe1 Rb4 Kd1 Be4 Kc2 Rb5 Ncd1 Rf8 Qf3 Rh5 Qff4 Rff5 Qf3 Rfg5 Qf5 Rh2 Rg4 Qa2 Rf4 Qad5 Kb1 Rgg2 Rg4+ Kh8 Rg6 Qb7 Rf6 Kg7 Rf8 Qc6 Be2 Qa8 Qg1 f1B Rd8 Rgg5 Bf3 Be2 Bg2 Qad5 Bf1 Rgg2 Qe6 Qf5 Qd5 Qf3 Qa5 Rgg5 Qb5 Qh1 Qf5 Rgg2 Qh7+
2BN2Qb/2P1q3/b4nK1/3r2PQ/2N1PpRq/1R1p1R2/1P2p1r1/1r1kN2N b - - 0 1 legal: proof: e4 b5 d4 d5 exd5 g5 h4 c5 hxg5 b4 d6 b3 axb3 Qb6 b4 Qc7 b5 Qd8 d5 e5 f3 e4 Ra2 Nd7 Be3 Ndf6 Bd4 e3 Ra1 Ne4 fxe4 cxd4 Ke2 Kd7 Kf3 f5 Kf4 a5 g4 h5 c4 d3 b6 a4 b7 a3 b8R a2 g6 h4 g7 h3 c5 h2 g5 Qe7 c6+ Kd8 c7+ Kd7 Rb3 Qd8 Ne2 Ba6 Na3 Nf6 g8Q Rh3 Nc4 Rh5 Rg1 h1Q Ng3 Bg7 Bh3 Bh8 Qf3 e2 Raf1 Rh6 Qh5 a1R Rf3 Qe7 Rg2 Qe1 Nh1 Rb1 Rg1 Qh4+ Rg4 Qf7 Ke5 f4 Kf5 Qg7 Ng3 Rh7 Nh1 Qe7 Kg6 Rb8 Na3 Rb5 Nc2 Rc5 Ne1 Rcc1 Ng2 Rg1 Ne1 Rg2 Qe6+ Ke8 d7+ Kf8 d8N Ke8 Qb6 Kd7 Qb8 Kd6 Nb7+ Ke5 d6 Kd4 d7 Rf7 d8N Rh7 Rf1 Ke3 Rf3+ Kd2 Nd6 Kd1 Nc4 Rf7 Rgg3 Rf8 Bc8 Re8 Rg4 Rf8 Nc6 Rd8 Qa8 Rd5 Nd8 Re5 Qd5 Rf5 Qf7 Rd5 Qg8
b1Q2NQ1/BBr5/3bbbR1/3nP1PR/B1Q2Pqp/1p1kP3/2np3B/5K2 b - - 0 1 legal: proof: b4 a5 bxa5 e5 d3 g5 g3 b5 Nc3 f5 Nd5 e4 dxe4 f4 gxf4 g4 h4 c5 Nb4 Ra6 Nc6 Rb6 Nd4 cxd4 Bd2 Rg6 Bc1 Rg5 hxg5 Qb6 Rh4 Qc7 Rh1 Qd8 a4 Kf7 c4 Kg6 f5+ Kg7 f6+ Kg6 e5 Kf5 f7 Ke4 a6 h5 a7 d5 a8B d3 c5 b4 c6 b3 a5 g3 a6 g2 c7 Qd7 a7 Qg4 Bf4 Ne7 Nf3 g1B Ra6 Bg7 f8B Be6 c8Q Bf6 Nd4 Rh7 Bh2 Nbc6 f4 Nb4 Qdc2 Be3 Q2c4 d2+ Kd1 Nc2 Bb7 Bf2 a8Q Rf7 Bg2+ Ke3 Bc6 Be1 Ba4 Rh7 Nb5 d4 Bb7 Nd5 Bc5 Rc7 Ba7 Bf2 Nd6 Bg1 Nf7 Ke4 Nh8 Be3 Ng6 h4 Nf8 Bf2 Rf1 Be1 Rf3 Bf2 e3 Be1 Ke2 d1B+ Kf1 Bb4 Rf2 Bf3 Rd2 Ba3 Rd6 Bc5 Rd7 Bd6 Rh7 Bh1 Qc6 d3 Rh5 Ne1 Ra2 d2 Qc1 Kd3 Rc2 Rh7 Rc7 Be4 Rg7 Nc2 Rg6 Rc7 Qe8 Nb6 Qac8 Bc6 Qf7 Nd5 Qg8 Ke4 Ba6 Ba8 Bb7 Kd3 Qa3 Bc5 Qb4 Bd6 Qc4+
4BQrq/2B1P1NP/5kpn/N3p3/2Q1K2R/nNQn4/4pPrP/1nb4N b - - 0 1 illegal: No proof kernel
3N3R/Np5q/1kp2P2/3NbPbR/2P1Q3/1NpbrQ2/2Pr2Bn/1QK1b3 b - - 0 1 legal: proof: g4 d5 e4 a5 b4 h5 bxa5 f5 exf5 d4 gxh5 Nd7 d3 Ne5 Bb2 Nc4 Bc3 dxc3 dxc4 Qd7 Bd3 Qd5 Bf1 Qd8 a4 e5 f4 g5 h4 e4 f6 g4 h6 c6 h7 e3 a6 g3 f5 e2 h5 g2 h6 Qd4 a7 Kd8 a5 Kc7 a6 Qb6 Rh5 Rb8 a8Q Qe3 a7 Bg7 Na3 Qc1 Nb5+ Kb6 Nf3 g1B Bg2 Qf4 Nfd4 Be6 Qb1 Re8 Nb3 Re7 Qe8 Bd5 Ra5 Re3 Qe4 Qe5 Qf3 Qe8 a8Q Qe6 Qe8 Qe7 Ra8 Be4 Na7 Bd3 Rc8 Qf7 Qee4 Bh2 Re8 Be5 Rd8 Ne7 Ra8 Rg8 h8N Nd5 h7 Bh6 Ng6 Rd8 h8N Qh7 Nf7 Bg5 Nf4 Rd7 Rh8 Rd6 Nd8 Rd7 Kf2 e1B+ Kg1 Re2 Kf1 Ne3+ Kg1 Ng4 Kf1 Re7 Rf8 Beh4 Rh8 Rf2+ Ke1 Nh2 Kd1 Rd2+ Kc1 Be1 Qg4 Bd6 Qef3 Re3 Qe4 Bc7 Qgf3 Be5 Nd5+
2q2Nb1/1Pp1PqRk/2Q5/1KPQ3n/2P1p1p1/B2QR1r1/3R3Q/2rr1q1N b - - 0 1 illegal: No possible last move
4bk1Q/P1N5/2p2n1R/1P1nb2P/1qR1p2R/bB2P1Nq/2p2KnR/N2Q4 b - - 0 1 legal: proof: f4 g5 g4 a5 b4 h5 gxh5 e5 Ba3 b5 c3 d6 c4 e4 bxa5 b4 Bb2 Ra6 Bd4 Rb6 Bc5 Rb5 cxb5 dxc5 Qc2 Rh6 Qc1 Re6 Qd1 Re5 fxe5 Bh6 Bg2 Bg7 Bf1 Bf8 d4 f5 a4 b3 h4 c6 h6 g4 e3 g3 h7 f4 h8R f3 d5 b2 e6 g2 h5 c4 a6 c3 a5 c2 e7 Bg4 d6 Bd7 a7 Qc7 a8N Na6 Rh6 Qb8 Rh2 Nc7 a6 Qc8 a7 Nf6 Kf2 Ncd5 Nd2 b1Q Ne2 Qb4 Nb3 Kf7 Ra4 Be8 Rh4 Qh3 d7 Kg7 d8R Kf7 Nc3 Kg7 Na1 g1B+ Ke1 Kg8 Bc4 Bh2 Kf2 Be5 Nc7 Kf7 Bb3 Kg8 Ke1 f2+ Ke2 f1N Kf2 Nd2 Ne2 Nf3 Ng3 Ne1 Rd6 Bg6 e8Q Ng2 Qc8 Be8 Rd8 Qc3 Rc4 Ba3 Rd7 Qb4 Rd6 Ndf4 Rd2 N4d5 Re2 Kf7 Qa8 Bd7 Qh8 Be8 Re1 Ke7 Rh1 Kf7 Rh2 Ke7 Qh7+ Kf8 Qh8+
2Qn4/p5q1/2n1p2Q/r2R2pk/P3P1r1/2B1nqPq/KB2NPQ1/2R2BQ1 b - - 1 3 legal: proof: h4 d5 h5 d4 Rh2 d3 Na3 g6 Rh1 Bh6 Nb1 Be3 dxe3 Bg4 Qd2 Bf3 exf3 Kf8 Qa5 Ke8 Qa6 d2+ Ke2 d1N Ke1 Nc3 Qe2 Nd1 c4 f5 e4 b5 cxb5 f4 Qe3 g5 Na3 Nc3 Nc4 Ne2 Qd2 Nh6 Qd1 Ng8 Ne3 fxe3 Qd3 Nf4 Qe2 Ng6 hxg6 Qd5 Rh2 Qd7 Rh1 Qd8 Rh6 c5 g3 c4 b4 c3 a4 c2 g7 Kf7 b6 Qf8 b7 Qe8 b5 Na6 b8Q Qc8 b6 Qg4 b7 Nc5 f4 Ne6 f5 Nd8 Bh3 Qf3 Rd6 h5 f6 Kg6 f7+ e6 f8Q h4 Rd5 Ne7 Qf1 e2 Kd2 e1N Ne2 Ng2 Qc7 Rh5 b8B Ne3 Kc3 Rh7 Bd2 c1Q+ Kb3 Qc3+ Ka2 Rh8 Bg2 h3 Qh1 Qd4 Qcc1 h2 Qcg1 Rh4 Bf1 Rg4 Qhg2 h1Q Be5 Rc8 Rc1 Rc5 Be1 Ra5 g8Q+ Kh5 Qf5 Nf7 Qc8 Qh3 Bd2 Nc6 Bf6 Qb6 Bb2 Nfd8 Bdc3 Qb7 Qf6 Qg7 Qh6+
Kb3bQ1/Np1r1N1b/2qnpP2/2Nb1q2/2R5/N2p1PP1/1P1k3B/R2Q1R2 b - - 0 1 illegal: No proof kernel
3R1QB1/2r1p2R/P1b2b2/1NP3bp/1q2bk1P/3bN1N1/1P4Qp/rR1K3R b - - 0 1 illegal: No proof kernel
rq5B/pBrpr3/Q1R2p2/1PQr4/P3Qnk1/1KPR1B2/N3rP2/4Qn2 b - - 1 2 legal: proof: d4 e5 dxe5 b5 a4 h5 g4 b4 Na3 bxa3 gxh5 Rh7 Qd4 Rh6 Qd1 Rh8 c3 Ba6 c4 Bb5 cxb5 c5 Qb3 Qb6 Qd1 Qd8 Bg2 c4 Qd4 c3 Bf1 c2 Qd1 Bc5 Nf3 Bd4 Ng1 Bc3+ bxc3 Qh4 Bf4 Qg5 Bc1 Qd8 Kd2 Ke7 e4 Ke6 h4 g5 h6 g4 h7 g3 h5 g2 h6 a2 Ne2 g1R Bg2 Qe8 Qe1 Ke7 e6 Kf6 e7 Kg5 e5 Qc8 e8Q Qc5 e6 Qe7 Bb7 Qa3 e7 Kg4 Rh3 f6 Rd3 Rg3 Qf8 Na6 e8B Qb4 Qc5 Ne7 Bf7 Re3 Bfd5 Rhe8 h8Q Qf4 h7 Rec8 Qe8 Qb8 h8Q Ng6 Qe4+ Nf4 Rb1 a1R Rb4 Rc7 Rc4 Ra3 Qc8 Ra2 Ba3 Nb4 Nc1 Rb2 Bdc6 Nd5 Na2 Rb1 Bb4 c1R Ba3 Rd1+ Kc2 Ra1 Kb3 Re2 Bc1 Ne3 Bd2 Nf1 Bd5 Kh5 Bdc6+ Nd5 Bh6 Rac1 Bg7 Kg5 Qcd4 Nf4 Bh8 Kg4 Qb6 Rcc2 Qa6 Re3 Bd5 Rce2 Rc6 Rdd2 Qf8 Rd1 Qc5 Rdd2 Qh7 Re7 Bg2 Rd1 Qe4 Rdd2 Re3 Rd6 Rd3 Rd5 Bf3+
2r1N2r/p2PNRPp/NQp5/2B1kN1B/1B5P/rbP3K1/b1b4Q/1n2r3 b - - 1 2 legal: proof: d4 b5 a4 c6 axb5 Qc7 d5 Kd8 d6 Ke8 dxc7 d5 e3 d4 Nc3 d3 Be2 e6 Bf1 Bc5 Nb1 Bd4 exd4 g5 f4 e5 Ra5 e4 Ra6 Nd7 Ra1 Ne5 fxe5 Bd7 Bf4 Bh3 Bc1 Bc8 b4 Bd7 Ra3 Rb8 Rc3 Bf5 Rc5 Ra8 Rd5 Bc8 Rd6 Ke7 Rf6 Ke8 Rf4 gxf4 Kf2 Kd7 g4 Ke6 h4 f5 b6 d2 c3 f3 b7 f4 b8B Nh6 d5+ Kf7 g5 Rd8 d6 Ke6 b5 Rg8 g6 Re8 b6 Rd8 g7 Kf5 d7 Rh8 e6 Ng8 e7 Ke6 e8N Nf6 Na3 Ke5 Qc2 d1B Be2 Ba6 b7 Bc4 Be3 Bb3 Bc5 Ba2 Qd2 Bdb3 Nb5 Bc2 Bd1 Bab3 Ne2 e3+ Kf1 f2 Kg2 f1R Ng3 e2 Nf5 e1R Bh5 f3+ Kg3 Ra1 Qh2 Rfe1 Rf1 f2 Bb4 Ra3 c8N+ Kd5 Nbc7+ Ke5 Nce7 Ba2 Rh1 f1B Bc5 Bb5 Rf1 Bbc4 Rf4 B4b3 Na6+ Ke6 Bc7 Rc8 Ba5 Ke5 Bab4 Ne4+ Kg2 Nd6 Kg3 Nc4 Rf2 Nd2 b8Q+ Ke6 Qb6 Nb1 Nd4+ Ke5 Rf7 Rd1 Ndf5 Rc1 Ba5 Re1 Bab4
5r1N/1krrb3/5Bn1/1pBppRBQ/1N2q1PN/Qb1P2P1/4PpB1/2K5 b - - 0 1 legal: proof: b4 g5 a4 b5 axb5 g4 b6 g3 fxg3 c6 b7 Bg7 g4 Bh6 b5 Bf8 h4 h5 g3 Qc7 b6 Na6 Rxa6 Qd8 Ra5 Nf6 Rxh5 Ng8 Rb5 cxb5 b8B f5 c4 a5 b7 d5 c5 Kd7 h5 Kc6 h6 e6 h7 a4 Be5 f4 b8B f3 Bf6 e5 Bd6 a3 Qb3 f2+ Kd1 a2 Bg2 a1R Nc3 Bd7 Qa3 Rc8 Nf3 Qb6 Nh4 Bf5 Na2 Qa5 Nb4+ Kb7 Rh2 Bb1 d3 Ne7 Bcg5 Ng6 Kc1 Be7 Rh1 Rhf8 h8N Qa4 c6+ Kb6 c7 Kb7 Bc5 Ba2+ Kb2 Bb3 Rh2 Rc1 Rh3 Rb8 c8Q+ Ka8 Qe8 Rd8 Qf7 Rd7 Qh7 Kb7 Qh5 Qa6 Rh2 Qe6 Rh1 Qf5 Rh3 Qe4 Rh1 Rc3 Kb1 Bc2+ Kc1 Bb3+ Kd2 Rc7 Bd4 Rf7 Nf5 Nh4 Qh7 Rc1 Bge3 Ng6 Rh5 Rc8 Nh4 Rff8 Rf5 Rfd8 Beg5 R1c7 Qh5 Rdd7 Bc5 Rf8 Kc1
B3NQr1/1pn4R/2BP2QK/2NB3p/P2n2Pp/7r/b2pPB2/2r1Nqk1 b - - 0 1 illegal: No proof kernel
3R2BQ/1Qp1kBnK/qB2rr2/5p2/6QR/1P1p1b1P/2p1P1BP/1N4qn b - - 0 1 illegal: No proof kernel
n2rQ1Q1/PPQprrRP/n2p4/1b2P1R1/1p5B/1p1R2N1/1b2B3/k2K1Q2 b - - 0 1 illegal: Other
k1RB3N/p4qP1/R2R1QQ1/Kp1R1P1r/1PB3pb/P1q2pn1/1nq5/7Q b - - 0 2 legal: proof: d4 e5 dxe5 h5 c4 d5 cxd5 h4 g4 Ke7 Nd2 Kd7 Ne4 Ke8 Ng3 hxg3 f4 g5 f5 b5 Nf3 Na6 Ng1 Rb8 Nh3 Rb6 Ng1 Rg6 fxg6 f5 Bh3 f4 Bf1 Bf5 gxf5 Kd7 Bg2 Ke7 Bf1 Ke8 Kd2 Kd7 Kc3 Kc8 e4 Kb7 h4 c5 h5 g4 h6 c4 e6 f3 d6 g2 h7 Qf6+ e5 Kb8 e7 Qe6 e8Q+ Kb7 d7 Nb4 d8R Qa6 e6 Nd3 e7 Ne5 Kb4 c3 Ne2 g1Q Nf4 c2 Rh6 Qg2 Bc4 Qc6 Ka5 Qf2 b4 Qe3 Qh1 Nd3 Rd5 Qf6 g7 Qd2 Qf7 Nb2 e8Q+ Be7 Ng6 Qdc3 Bg5 c1Q a3 Qe6 Qf6 Q1c2 Rad1 Qf7 Qec6+ Kb8 Qce6 Kb7 Rd6 Kb8 R1d5 Ka8 Ra6 Bd8+ Qb6 Ne7 Bh4 Nc8 Bg5 Nd6 Bh4 Rg8 h8R Ne4 Bg5 Rf8 Rg8 Be7 Nh8 Ng3 Qg6 Rb8 Rc8 Bf6 Bc1 Bh4 Bg5 Qe4 Bd8 Qec2 Rcc5 Rc8 Qbd6 Rc6 Qdf6 Re6 Rc7 Re2 Rad6 Rh2 Rc8+ Kb7 Ra6 Rh3 Qd4 Bf6 Qg5 Rh5 Rg6 Be7 Rgd6 Bf6 Qg6 Bh4 Rcc5 Kb8 Qdf6 Ka8 Rc8+
2qR2n1/5p2/nKpR3p/2B1N1k1/qPq3P1/r3NNQp/1PbN1P2/R4Q2 b - - 0 1 legal: proof: d4 d5 e4 a5 exd5 b5 h4 b4 c4 b3 axb3 g6 h5 Be6 h6 Kd7 b4 Bg4 d6 Ke6 c5 Bh5 d5+ Kf5 Be2 Bg7 hxg7 Kf6 Bf3 Bg4 Be2 Bf5 Bh5 Bc8 d7 gxh5 Na3 Ra6 Nb1 Rd6 cxd6 Kf5 Qg4+ Ke5 Qd1 Kf6 Ke2 e5 Ke3 h4 g4 e4 Kd4 a4 Kc5 h6 Qf1 h3 Nd2 a3 Ngf3 Ne7 g8N+ Kg6 Nf6 e3 Kb5 Qf8 d8Q e2 d7 e1Q d6 a2 Nd5 Ng8 Ne3 Na6 Qh4 Qe2+ Ka5 Qc4 d8N Bd7 Nc6 Qc8 Qg3 Bf5 d7 Bc2 d8R Kf6 Nce5 c6 Rb1 a1Q+ Kb6 Qa4 Ra1 Qca2 Qd3 Qc4 Rd1 Rh7 Qf1 Rg7 Nb1 Rg5 Bd2 Rh5 Bc3 Rg5 Nbd2 Rf5 Bd4 Rf4 Ne1 Kg5 Bc5 Rf6 Nb3 Rf3 R1d6 Qf4 Nd2 Qc4 Nd1 Rc3 Ne3 Ra3 N1f3#
3NQ1B1/B4Qn1/p4p2/1n1pq3/nB1nPpR1/2N2P1K/1b2BPrP/2k3Q1 b - - 0 1 illegal: No proof kernel
1kN4r/Q6p/2Q3P1/1RPQPpr1/2Kn1rp1/4N2B/3bNnpP/1rQ1B3 b - - 0 1 illegal: Other
2kbK1n1/r1P1n2Q/1Q1QP3/6pN/Bb3RP1/3rN2P/3qb1Q1/2qBr1Bn b - - 0 1 legal: proof: b4 c5 a4 b5 axb5 h5 f4 e5 fxe5 c4 g4 h4 Ra3 Rh6 Rg3 c3 dxc3 hxg3 c4 Rh4 c5 Rh8 Kd2 g5 Kc3 d5 Kd4 Kd7 c4 f5 e4 a5 b6 f4 c6+ Ke8 b7 g2 h3 f3 e6 f2 Ke5 d4 b5 a4 b6 d3 c5 a3 e7 d2 c7 Kd7 e8B+ Ke7 c6 a2 Nc3 a1R Be2 f1N Qc2 d1Q Be3 Q1d2 Nd1 Bf5 c8Q Rb1 Qc7+ Q8d7 Rh2 Na6 b8Q Bh6 b7 Ng3 Ba7 Bf8 Ne3 Rh7 Bd1 Nb4 Ne2 g1B Nf4 Nh1 Nh5 Qc1 Rf2 Nd5 Rf4 Rh6 Qa2 Rd6 Qg2 Bf2 Bc5 Ra7 Qb6 Be1 Q8c7 Ba5 b8Q Bh7 Qcc8 Qd8 Qf5 Bb4 Qg6 Bg7+ Kf5 Bf6 e5 Qd7+ e6 Rba1 Qa6 Rb1 Qbb5 Kd8 Qd3 Be7 Qb6+ Kc8 c7 Bd8 Qd4 Nde7+ Ke5 Nh6 Kf6 Nhg8+ Kf7 Rba1 Qgg7 Bd3 Qh7 Be2 Qe5 Rd3 Qed6 Qa4 Bd4 Qac2 Ba4 Q2d2 Ke8 Qcc3 Bdc2 Re1 Bd1 Qcc2 Nf1 Qb2 Bg1 Qbc1 Ne3
1K2BQ1r/1brQ2p1/1Pb5/Q2QPnPn/2q2kPR/3R1q2/qn1b1NN1/3N4 b - - 0 1 illegal: No proof kernel
2bn4/pNB4k/nQQ1N2b/K1P1B3/P2r3b/1r1P2q1/1Pq2B1n/2N1rBR1 b - - 0 1 illegal: No proof kernel
1rB5/5qk1/P1r3bn/Nr2Qrp1/Pr1b1Q2/R1QPb1PK/3B2n1/1QN4N b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 h5 e4 Kd7 exf5 Ke8 a4 h4 f3 h3 g3 Nh6 Na3 Ng8 Rb1 Nd7 Rb3 Ra7 Re3 Nb8 Re2 Ra8 Rg2 hxg2 Kf2 Kf7 h4 e5 h5 b5 f4 g5 d6 c5 d3 b4 h6 b3 f6 b2 a6 b1R h7 c4 f5 c3 d7 e4 Nc4 c2 Bd2 c1R Na5 Bg7 Nh3 g1B+ Kg2 e3 Nb3 e2 Nf2 e1R Kh3 Rc6 Nc1 Qe7 d8N+ Kf8 f7 Bd4 Rh2 Kg7 Nb7 Rb5 Na5 Nd7 Nh1 Re4 Re2 Rab8 f6+ Kg6 f8Q Nh6 f7 Bge3 Qe8 Kg7 Qb3 Rf8 Qb1 Rg4 Rg2 Ne5 Be2 Re4+ Bg4 Nf3 Bd7 Qf6 Qe5 Ne1 Re2 Ng2 h8Q+ Kg6 Bg4 Bf5 Re1 Rf4 Rg1 Be4 Bc8 Qe7 Qhf6+ Kh7 Rf1 Bg6 Rf2 Rf5 Re2 Rh8 f8Q Qf7 Qfc5 Rb4 Qc3 R8b5 Qf4 Rd8 Q6e5 Kg8 Be1 Re8 Ra2 Kh7 Bd2 Rg8 Bd7 Rgb8 Ra3 Kg8 Bc8 Kh7 Qd6 Kg7 Qde5+
r1nrn3/2RN1N1P/b2Q1R1b/2Q2Bp1/P4n2/1n1n2q1/RR3bPP/NK4k1 b - - 0 1 illegal: No proof kernel
2B3n1/1nKb2b1/rPp2N1R/2PQN1Qb/1qN2b1P/2r2r1k/QQ1n1P2/4B3 b - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 f5 gxf5 h5 b4 Ne7 a4 Nbc6 axb5 Nb8 Ra3 Ng8 Rg3 Qe7 Rg6 Qd8 Rg4 hxg4 Kd2 Ke7 Kd3 d5 Kd4 g5 Kc5 a5 c4 g3 e4 c6 b6 d4 b5 g2 b7 a4 b6 g4 e6 Kf6+ e7 g3 Nd2 Kg5 f6 Kh4 f7 d3 e5 a3 e6 a2 Ngf3+ Kh3 Ne5 Bh6 e8N a1B f8Q Bd7 Kd6 Bf4 e7 Na6 b8Q Nc5 Qf7 Ra6 Nf6 Qf8 Kc7 Nb7 e8Q Qb4 c5 Bc3 Be2 g1R Qee7 g2 Nc4 d2 Qa4 d1B Qa2 Rf1 Qd5 g1N Bd2 Nf3 Be1 Nd2 Qa8 Rg1 Qb2 Rg3 Bh5 Rf3 Bg4+ Kg2 Qg7 Rh3 Qg5 Rg3 h4 Bd4 Rg1+ Kh2 Be6 Rc3 Bh3 Bh5 Bf5 Rgf3 Rg3 Bde8 Bc8 Bd7 Rg4 Ra2 Qa4 Kh3 Qab3 Ra6 Q3a2 Ne7 Qg7 Ng8 Rg6 Bh6 Qe7 Bg7 Rh6 Be3 Ne8 Bf4 Qg5 Bf5 Nf6 Be6 Rh7 Bd7 Rh6
KQ2n3/b1P2Nr1/2nrB3/2bqQN1k/2p3bQ/n1PR1Q2/r1PrP2B/4N3 b - - 0 1 illegal: No proof kernel
R1r2n2/K1b1Nq2/2R1p1P1/2nR1N1r/P1QNn3/2QnP3/BRP3rk/1b1b4 b - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 bxa5 Nh6 f4 Ng8 fxg5 h6 g6 Ra7 g7 Ra8 g4 Qb6 g5 Qc7 g6 Qd8 Bg5 hxg5 Kf2 d5 Ke3 Kd7 Kd4 Ke6 a4 Kf5 h4 Kf4 a6 Kg3 e3 b5 h5 f5 c6 g4 Kc5 b4 h6 b3 c7 d4 Kb6 b2 h7 f4 a7 f3 Bb5 f2 Bc4 f1N Ba6 d3 Qc1 d2 Ra2 d1N Ra1 Qd7 Nc3 b1B Bd3 Na6 Nd5 Nf2 Qa3 Nc5 Qb4 Nd2 Ra2 Nf6 g8N Nde4 Bc4 Nfd3 Rh5 e6 Nh6 Qf7 Rb2 Bd6 Ne7 Ba6 Rf5 Kh2 c8R g3 Rd5 g2 Ne2 g1R Rc6 Rg2 Ba2 Rac8 a8R Nfd7+ Ka7 Bc7 Nd4 Nf8 Qb5 Ndf2 Qb3 Be2 Qc4 Nfd3 Nhf5 Bd1 Nb5 Rg8 Nbd4 Rg7 h8Q+ Rh7 Nb3 Rh4 Qhc3 Rh5 Nbd4
4k1N1/1rb1PprP/nPQ2B2/1bN1qR1n/1b1R1Q1r/5PR1/2r3nR/6KQ b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 d6 e6 d5 Na6 Bg2 Nb8 Bf3 Ke8 d7+ Ke7 d6+ Kf6 Bd5 exd5 Nc3 Kf5 Nb1 Ke6 Kf1 c5 h4 g5 b4 a5 e4 c4 f3 c3 e5 g4 b6 g3 b7 a4 h6 a3 h5 a2 b5 c2 h7 d4 b6 d3 h6 d2 Rh2 Nc6 b8Q Bg7 Nc3 Bf8 Nd5 Qc7 d8R Ba6+ Ne2 g2+ Kg1 Nf6 d7 Nh5 Ne7 Nb4 Bb2 c1R Nc3 Rc2 Qc1 d1N Ne4 Bb5 Ng8 Na6 Bc3 Bb4 Nc5+ Kd5 e6 Kc6 e7 Qe5 Qf4 Ra7 Qa8+ Rb7 Rf8 Ne3 d8R Ba4 Rc1 a1B Rd4 Bb5 Rfd8 Bb2 R8d5 B2a3 Ne4 Bd6 Nc5 Bc7 Rf1 Bb4 Rf2 Qd6 Rf5 Qe5 Rh3 Bf1 Rg3 Bb5 Kh2 g1R Re2 Rd1 Bb2 Rdd2 Kg1 Ng2 Qc8 Nh4 Rh2 Ng2 Nf6 Rg8 h8Q Rg7 h7 Re2 Qhf8 Re4 Ng8 Rg5 Qh6+ Rg6 Qc1 Rh4 Qhf4 Rg7 Rd5 Qe2 Bf6 Qe5 Rd4 Bf1 Qe6+ Qd6 Kh1 Bb5 Qee4+ Qd5 Ne6 Kd7 Nc5+ Ke8 Qf1 Ne3 Qg2 Qd6 Kg1 Qe5 Qh1 Ng2 Qc6+
1n5b/nB2K1Q1/R7/p3Pk2/P3q1b1/r1PbRr2/1PQ1bb1N/qR1BBB2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 Na3 c3 dxc3 b4 c4 bxa3 c5 Qb6 Bf4 Qf6 Bc1 Qd8 Kf2 Ke7 Ke3 Ke6 Kd4 a5 e4 f5 h4 g5 c6 d5 h6 f4 h7 a2 h5 f3 h6 g4 c7 f2 Rb1 a1Q Rh3 g3 Nf3 g2 Bd2 g1B Be1 Qe7 Nh2 Bg7 Re3 Ba6 Qd2 Be2 Qc3 Qe8 Kc5 d4 Qd2 d3 c3 Ne7 Qc2 Rf8 h8R d2 h7 d1B Rg8 Ra7 h8Q Nec6 c8B+ Rd7 Bb7 Na7 Qh7 Bh8 Qg7 Rf3 Rf8 Qg6 Rc8 Rd6 Rc6 Bd3 Ra6 Qf5 Bh3 f1B Bg2 Bfe2 Bf1 Qh7 Qg8+ Ke7 e6 Kf6 e5+ Kf5 e7 Rb6 e8B Bf2 Bh5 Rb3 Kd6 Ra3 Qg7 Qg6+ Ke7 Qc6 Be8 Qe4 Bb5 Rg3 B5c6 Bg4 Bd5 B1e2 Bb3 Rf3 Qd2 Qa2 Bd1 Qa1 Qc2
kr1q3r/1rpQ3P/2P1B3/1RN2qnN/2PQQQ2/P3r3/1bbB2Kb/3B3n b - - 0 1 illegal: No proof kernel
K1BQ4/1RPb3Q/2r1rN1p/b2q4/RPbn1bPP/8/1nNkQNQ1/2qn4 b - - 0 1 legal: proof: e4 b5 d4 f5 f4 g5 a4 c5 dxc5 Bg7 axb5 Qb6 exf5 Qc7 f6 Qd8 f5 Bf8 Bf4 gxf4 Ke2 Kf7 Kd3 a5 Kd4 d5 h4 e5+ Kd3 f3 g4 h6 c4 e4+ Kd4 a4 b6 f2 b7 a3 c6 e3 c7 a2 c5 e2 c6 e1B Ba6 f1B Qe2 Ba5 Nh3 Nd7 b8N Ne5 Nf2 Ne7 Kc5 d4 Nd7 d3 Na3 d2 Nc2 d1N Rh3 Ra7 Rb3 Nc4 Rb7 Rh7 b4 Ncb2 Kd6 Rg7 Kc5 Rg6 Kb5 Bg2 Kc5 Bd5 Kd6 Bc4 Kc5 Kg8 f7+ Kg7 Nf6 Bd7 c8Q Ra8 Qc7 Rc8 Qh2 Rc7 Qg2 Qa8 Rb1 a1Q Rc1 Qa3 Ra1 Qe3+ Kd6 Qc1 Ra3 Rc8 Ra4 Re8 c7 Nc6+ Qe7 Nd4 Kc5 Kh8 Kd6 Bg7 Qe2 Re7 Kc5 Qg8 f8Q Re6 Qe7 Qa8 Nd5 Be5 f6 Bf4 f7 Kg7 Qd8 Rgf6 f8Q+ Kg6 Qh8 Kf7 Ne7 Rg6 Qh7+ Kf6 Qd3 Ke5 Nd5 Bg5 Nf6 Kf4 Ra7 Qe4 Bc8 Qf3 Qdf1 Qd3 Rb7 Qf3 Na3 Ke3 Nc2+ Kd2 Qh2 Ba2 Qhg2 Bf4 Qc4 Nc6 Kb5 Qd5+ Ka6 Nd4+ Ka7 Bb3 Qcf1 Bc4 Ka8 Rc6 Ne8 Rgd6 Nf6 Re6 Qe2+
rQb3R1/B2B3P/1P2QbBn/2n2Qqp/NN6/n2PQnrP/4q2q/2K2k2 b - - 0 1 illegal: No proof kernel
Q1Nbb3/1n3q1Q/Kp1N1PRB/3B3n/kP5P/1rBB4/3q1NP1/r2r1r1b b - - 0 1 illegal: No proof kernel
4n2K/pbn1N3/Qq2b2B/P2BP3/3N1QBb/k2rbrRP/P2r1B2/N1q5 b - - 0 1 illegal: No proof kernel
k2Bnqnn/1bqN3K/1nq2Pp1/P2B4/7Q/3Q2P1/1bBP1N1B/r2r2QR b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 h5 e4 Kd7 exf5 Ke8 a4 h4 f3 h3 g3 Nh6 Na3 Ng8 Rb1 Nd7 Rb3 Ra7 Re3 Nb8 Re2 Ra8 Rg2 hxg2 Ke2 Kd7 Ke3 c5 Ke4 Kc7 h4 b5 d6+ Kb7 f6 e5 f4 c4 f5 c3 h5 b4 h6 b3 f7 c2 f6 g6 h7 b2 d7 b1N Qe2 Qc7 d8B Na6 Nc4 Na3 Bb2 c1Q Nb6 Nc4 Nd7 Ba3 f8Q Nb6 Bd4 Bb2 Nh3 g1Q Nf2 Q1c6+ Ke3 e4 Qc5 Ka7 Qd3 Bb7 Bh3 Qa1 Bf5 Qa3 Qc1 Qf8 Qg1 Nb4 a6 Nd5+ Ke2 e3 Kf3 e2 Kg4 e1N Kg5 Nc3 Be4 Nb5 Bd5 Nd6 a5 Ne8 Bb3 Rc8 Bc2 Ka8 a7 Nf3+ Kg4 Ne5+ Kg5 Nh6 Be3 Rg8 h8Q Nef7+ Kh4 Rb8 Qh7 Nh8 Kg5 Rg7 Bc5 Ng8 Qh4 Re7 Bd4 Re1 Be3 Ng7 Bc5 Ne7 Kh6 Ng8+ Kh7 Rc8 Bde7 Re8 Bd8 Ra1 Bd4 Ree1 Be3 Red1 Bd4 Ba6 Bc5 Kb7 a8B+ Ka7 Be3 Bb7 Ng4 Qb5 Qf2 Bc8 Bd5 Ne8 Qg2 Bb7 Bg1 Qbc6 Bh2 Ka8 Nf2 Qe6 Qgf1 Qec6 Qg1
2b2Bk1/1rn5/3NPBPK/2bb2pQ/2qR4/1B3P2/rRBR2Pn/1Qrq3r b - - 0 1 illegal: No proof kernel
1Q6/3bNn2/3nr3/2QKp3/B1QPQrRN/q2q2P1/bB1PP1n1/k1N1b1n1 b - - 0 1 illegal: No possible last move, all moves rejected
K7/b2b2b1/qBpk1q1P/Q1R1PR1r/r3R2q/1QP1Q3/N2QBP1b/1n3n2 b - - 0 1 illegal: No possible last move, all moves rejected
bn2k2R/5bP1/N2Pbp2/1N2P2N/1rQ1RbBr/1Q2nqn1/4NP2/nK5R b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 e5 d4 Qd6 Be3 Qe6 d6 Qf6 d5 Qd8 Bd4 exd4 Kd2 h5 Kc2 c5 e4 a5 b4 a4 g4 c4 e5 h4 g6 c3 g7 f6 g5 h3 b6 a3 b5 a2 g6 h2 b7 Ra5 b6 Nh6 g8Q Be6 Bh3 Rb5 Bg4 Nf5 Ne2 Rb4 Na3 Rh4 Nb5 d3+ Kc1 c2 g7 Ne3 Re1 h1B d7+ Ke7 Rb1 Qc8 d8N Qc3 Ra1 Ke8 Rb1 Bf7 Ne6 a1N N6f4 Bf3 Nh5 Be6 Qh7 Bc5 d6 Qb3 Qe4 Qd5 Kd2 c1N Qb3 Bh1 Qf4 Qf3 Qfc4 Bg2 Kc3 d2 Kb2 d1B Rh1 Bc2 Re1 Bg6 Rh1 Nd7 b8N Bgf7 Na6 Nb8 b7 Ba7 Neg3 Ne2 Rbe1 Bd4+ Kb1 Bc3 Qc5 Bd2 Qc4 Nd4 Ne2 Ndf5 Rd1 Bc1 Rd4 Ng3 Rf4 Nec2 Rd4 Bf4 Re4 Ne3 Na7 Kd8 Ng1 Nc6 Nb5 Qe2 b8R+ Kd7 Rc8 Nb8 Rd4 Ba8 Re4 Qf3 Rg8 Rh2 Rh8 Rh4 Rh6 Kd8 Ne2 Ke8 Rh8+
1N2r2R/8/1Qqp2k1/2n5/1B1bBN1P/QP1nbNN1/bBPP3r/rrbK4 b - - 0 1 illegal: No possible last move
1B2Qb1n/N1R1q3/1krP2rR/4bpPp/5P1P/1r1nbn2/NQ4N1/QK1N4 b - - 1 2 legal: proof: f4 d5 d4 g5 e4 b5 a4 g4 axb5 Qd7 c4 Qd6 c5 Nd7 c6 Nb8 Be2 Bd7 Bf3 gxf3 exd5 Bf5 Kf1 Qd8 d6 Bd7 Ke1 Bg7 cxd7+ Kf8 d5 Bh6 Nc3 Kg7 Nb1 Kf6 Bd2 Bg7 Bc1 Bf8 Kd2 h5 Kc2 e5 h4 a5 g4 c5 b4 e4 b6 c4 b7 a4 b5 c3 b6 a3 Ra2 e3 Rh3 e2 Be3 f2 Nf3 f1R Ne1 Ra6 Ng2 Qe7 d8Q Nh6 d7 Rg1 Qe8 Nc6 b8Q Ne5 d8N Nf3 b7 Rc6 Ba7 e1N+ Kc1 c2 Nc3 Rg8 g5+ Kf5 Qd4 Rgg6 Nd1 f6 d6 Nf7 Qa1 Ke4 Rb2 Kd5 Rb1 N3e5 Re3 N5f3 Re6 a2 Rb3 f5 Rc3 Nh8 Rc4 Rb6 Rc7 Rb3 Nc6 Kc4 Rf6 Kb5 Nb4+ Ka5 Qbc8 Rf1 Bb8 Kb6 Qe6 Rh1 Qee5 Rg1 Qab2 a1B Na2 Rf1 Rf7 Rf2 Rh7 Rd2 Qg7 Rd4 Rh6 Rc4 Qb1 Be5 Qa1 Rc6 Qf6 Rbc3 Kb2 c1B+ Kb1 Bd4 Qe5 Nd3 Qe2 Rb3+ Qeb2 Ka5 Ba7 Bce3 b8N Ra6 Nc6+ Kb5 Nf2 Be5 Bb8 Kc5 Na7+ Rc6 Nd1 Kb6 Qd7 Re6 Qd8 Rg6 Qe8
RKnB1Rn1/5b1R/3nRbk1/B7/2P1rp2/1P1p1PPQ/QN1b2B1/rqq5 b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 g5 axb5 g4 Nc3 g3 Nd5 e6 hxg3 exd5 g4 d4 g5 Qe7 Rb1 Qf6 Ra1 Qd8 Kd2 h5 Kd3 f5 Kc4 Kf7 Kd5 a5 e4 d3 c4 d6 b3 h4 g3 h3 g6+ Kg7 c6 f4 b6 h2 b7 d2 f3 a4 e5 a3 c7 a2 e6 Qf6 e7 Nc6 b8B Na7 e8R Qc3 Qe2 d1Q+ Bd2 Qb1 Re6 Qcc1 Nh3 Be7 Ba5 Bf6 Qc2 Bc3 Nf2 Bd2 Nd3 Rh7 Rg1 h1N Nb2 Nf2 Bg2 Ne4 Rh1 Bd7 c8Q Be8 Rh4 Bf7 Bbc7 Rh6 Qd7 Nc8 Kc6 d5 Kb7 d4 Bd8 d3 Rh1 Ra7+ Kb8 Ned6 Rh2 Rh5 Rh4 Kh6 g7+ Kh7 Re4 Kh6 Qh3 Kg6 Re7 Re5 Rh7 Re4 Re8 Be3 Qf2 Bd2 Rf8 Qbc2 Rb1 a1B Qe2 Qh1 Re1 Qc1 Qf2 Bb4 Qc2 Bd2 Qb1 Ra6 Qa2 Qb1 Re3 Qhc1 Re2 Rd4 Ree8 Re4 Re6+ Nf6 Bab6 Re5 Qa5 Be8 Nd1 Re4 Qa3 Ra4 Ba5 Bac3 Qb2 Ra1 Qa2 Bd4 Nb2 B4c3 Rf7 Be5 Ra7 Bf7 Ra8 Bd4 Re7 Ng4 Re8 Nh6 g8R+ Bg7 Rgf8 Ng8 Re7 Bf6 Re6
Q2rn3/RBP1QN2/K2bpp1P/1Q2P1rq/b2P2R1/2r4n/3Q1n2/k3RNq1 b - - 0 1 illegal: No proof kernel
n2Q3Q/3R4/PR1q1R1r/2n2bk1/BP1rN2q/r1qpPKp1/2NP3b/4RQ2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 c4 a4 cxb5 a3 b3 Ra5 Bb2 axb2 Nf3 Ra6 Ng1 Ra8 Kf2 Ke7 a4 f5 h4 d5 b4 g5 b6 c5 a5 f4 e6 Kf6 h6 c4 h7 f3 b7 c3 e7 c2 e8Q c1Q e3 d4 h5 d3 h6 g4 Nh3 Ne7 Qd7 Nd5 Bg2 Nb6 Re1 Na6 b8R Qc3 Na3 b1Q Nc2 Nc5 a6 Bd6 Qe2 Bh2 Qf1 Qc1 Qc7 Qd6 Qd8+ Kg6 Rb7 Bf5 Rd7 Rb8 Ra5 Na8 Rb5 Q1a1 Rb6 Qa2 Rf7 Qac4 Rf6+ Kh5 Bh1 Rb7 Bg2 Re7 Bh1 Re4 Bg2 Rd4 Bh1 Rg8 h8R Rg6 h7 Rh6 Rg8 Kh4 h8Q Kh5 Rg7 Kh4 Rd7 Kh5 Qg1 g3+ Kf1 f2 Kg2 f1R Nf2 Kg5 Kf3 Rd5 Bg2 Qh4 Bh3 Rd4 Qg2 Rg1 Qf1 Bg6 Be6 Bf5 Bb3 Rh1 Ba4 Rg1 Qh3 Rh1 Ra1 Rb1 Qf1 Rb3 Re1 Ra3 Ne4+
3K4/rq1P2R1/R1pN3q/N1P1rp1Q/4r3/bQPbP1b1/nQ1Nkn2/B2N4 b - - 0 1 illegal: No proof kernel
1qR1N3/r3B1Q1/pQ3nP1/1p1Q4/1Pb1k3/1rB1bn2/bBPrB1P1/2K1Nq2 b - - 0 1 illegal: No proof kernel
4nbBn/RN3Pp1/1PQ5/Q1Q3P1/1Q1P1Bpb/1bB1K3/q5rr/qnk2N2 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 g4 f5 c4 f4 cxd5 f3 g5 Bf5 exf3 Be4 f4 Bg6 f5 Bf7 Ra3 Be6 Rg3 Bc8 Rg4 hxg4 Ke2 Kf7 f4 a5 h4 e5 d4 c5 f6 Kg6 b6 Kf5 h5 Ke4 h6 a4 b5 a3 b7 c4 h7 a2 f5 a1N f7 c3 d6 c2 d7 Bc5 f8Q Ne7 f6 Ng6 Bb2 c1Q Bc3 Qa5 d8Q Nd7 b8B Nc2 Nf3 Qa2 Qe1 Na3+ Nbd2+ Kf4 f7 Qca1 Qa5 Nf6 b6 Nb1 Nh4 Be6 Nf5 Bb3 Nd6 e4 Nb7+ Bd6 Qc8 e3 Qcc5 Ne8 Bg2 Ra6 Be4 Ra8 Kd3 e2 Nf1 Ra6 Bf5 Kf3 Bc7 Bf8 Bf4 Ra8 Qc1 e1B Q1a3 Rc8 Q3b4 Bh4 Rh2 Rc7 Re2 Rc8 Re7 Kf2 Ke4 Ke2 Rc7 Kd1 Ke3 Kc1 Be4 Rg8 h8Q Ra8 Qh6 Rh8 Rd7 Rh7 Re7 Nh8 Qhc6 Rh6 Bh7 Rc8 Qh1 Rcc6 Bg8 Rcf6 Bc7 Rf2 Qhc6 Rg2 Bb8 Bg3 Bf4 Rhh2 Nd8 Be1 Ra7 Bh4 Nb7
1B6/r2R2NQ/RkrQ2P1/b2n2pP/1p3R1P/qrn2QP1/3n4/2N1qbKQ b - - 0 1 illegal: Other
K5n1/R2R1Q2/q4N1B/1rr3q1/p1p1Pb2/kQ2NNN1/P1PP2b1/2nRb1r1 b - - 1 2 legal: proof: f4 c5 b4 h5 g4 e6 gxh5 e5 Bg2 c4 Bc6 dxc6 fxe5 c5 bxc5 Qd5 Nc3 Qd3 Nb1 Qd8 Kf2 Kd7 Kf3 Kc6 Ke4 Kb5 h4 Kb4 e6 b5 h6 g5 h5 a5 e7 a4 e8N g4 c6 g3 h7 g2 h6 f6 c7 Na6 Bb2 Rb8 Nf3 g1B Nc3 Bf2 Qb1 Bh3 c8N Bd6 Kd5 f5 Kc6 f4 e4 Nc5 Ne7 Nd3 Nf6 Nc1 Nf5 Bg2 Nd1 Be1 Nde3 Qa5 Be5+ Ka3 Ng3 b4 Rh2 Rc8+ Kb7 Rc5 Bc3 Qb5+ Ka8 b3 Rh5 b2 Rd5 Bb8 Rd7 Qa6+ Ra7 Ne7 Bd4 Rg8 h8R Rg4 h7 Ng8 Bc3 Rg7 Be5 Rb7 Bd6 Rb5 Bf8 Bc7 Ng1 f3 Bh6 f2 Nf3 Ne7 Rd8 f1R h8Q Rg1 Rd7 Bf4 Qb8 Ng8 Qc7 Nd3 Qd1 b1Q Qc1+ Qb2 Qb1 Qe5 Qb7 Qf5 Qd5 Qg5 Qf7 Ra5 Qb6 Rab5 Rd1 Nc1 Qb7 Ra5 Qb1 Rab5 Qb3+
2bR4/1q1pPN2/1P1Q4/N1qQ1r2/pPbb1n2/2q4R/P1rRk1B1/nN2N2K b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 f4 Bf8 fxg5 h6 g6 Qf6 g7 Qd8 g4 Bd6 g5 Ba3 g6 Bf8 Bg5 hxg5 Kf2 Ke7 Kg2 Ke6 h4 Kf5 b4 Kf4 e4 Ke3 h5 f5 h6 a5 h7 c5 e6 g4 e7 g3 e8Q c4 b6 f4 e5 c3 e6 c2 e7 c1Q Nf3 a4 Qd6 Ra5 Nh4 f3+ Kg1 f2+ Kg2 Rf5 Nf3 Qc3 Rh4 Nf6 g8R Bg7 Rh3 Nh5 Kh1 Bd4 g7 Nc6 Bg2 f1B Ne1 Nf4 Qf7 Bc4 Qfd5 Qc7 Rd8 Na5 g8N Nb3 Nh6 Ke2 Ng4 Qb7 Ne3 Rg8 h8N Rg6 Q6e5 Rc6 Nf7 Rc5 Qed6 Rc7 Nd2 Rc5 Rd1 Na1 Nb1 Rc7 Be4 g2+ Kh2 Bb5 Nc4 Rc6 Na5 Bc4 Rdd3 Rc7 Kg3 g1Q+ Bg2 Qf2+ Kh2 Qe3 Kh1 Qe5 Q5c6 Qc5 Qcd5 Qcc6 Ng5 Qa3 Kh2 Ba6 Rh4 Qb5 Rhh8 Rc2 Nf7 Qc5 Rhh3 Qac3 Kh1 Bc4 Rd2+
b5q1/Q3RPNr/P1pqB1p1/1R2q2b/5kn1/r1R2rP1/QBP4n/1K1BR3 b - - 0 2 legal: proof: d4 e5 dxe5 f5 e4 a5 b4 Bd6 bxa5 Bc5 e6 Bf8 h4 g6 e5 Qf6 h5 Qe7 h6 Qf6 Nd2 Qd8 Ne4 Bg7 hxg7 fxe4 Kd2 Ke7 f4 d5 a4 b5 a6 h5 a7 d4 a5 c6 f5 h4 Qg4 b4 Qg5+ Nf6 g8Q b3 Kd1 e3 Ne2 b2 Ng3 b1Q Ra3 d3 Nh5 d2 Rc3 h3 Be2 h2 Ng7 Qb4 Bb2 Qbd6 Re1 h1R a6 R1h3 Qg4 R8h7 Qd4 Nbd7 Qb6 Rb8 a8R Bb7 Qa7 Ng4 Bf3 Rc8 Rb8 Ba8 Rb5 Nh2 Bh5 Qe8 Bg4 Rf3 Bh5 Rb8 f6+ Kd8 Qf7 Qg8 e7+ Kc8 e6 Ne5 e8B Neg4 e7 Rb6 Ra5 Rb3 Rb5 Ra3 Qd5 Qc7 f7 Qd6 Qad4 Kc7 Qa2 Qh8 Bd7 Qg8 Ke2 d1B+ Kd3 e2+ Kd2 Qd5 Kc1 Kd6 Qa7 Ke5 e8R+ Kf4 Be6 Qd7 Re7 Qd6 Rf1 e1Q Kb1 Qee5 Re1 Nf6 Bhg4 Rf2 Bgf5 Bh5 Bg4 Rf1 Bf3 Nfg4 Bd1 Rf3 g3+
1qr5/1P1RN1k1/NN5r/Q3nKp1/3P3Q/qBp1bb1r/n2Q1PP1/BN3q2 b - - 0 1 illegal: No proof kernel
2B2nr1/1bbRQ3/1BnPp1nB/6K1/1Q6/2pPP1Pq/qbNQ4/k3rQN1 b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 f4 g5 c4 h4 cxd5 h3 Ra3 Bd7 Rf3 Bc8 Rf2 Nh6 fxg5 Ng8 g3 Bh6 Rg2 hxg2 Ba3 Bg7 Bc1 Bf8 Kf2 Kd7 Ke3 Kd6 Kf4 a5 h4 c5 g6 f5 e3 a4 b6 c4 h5 c3 h6 e6 h7 a3 g7 a2 d3 a1B b7 Bb2 b5 Kc5 b6 Kb4 Na3 Nd7 b8Q Bb7 Qd2 Kb3 Qc7 Ka2 Nc2 Ne7 g8Q Nc6 Qf7 Rg8 h8B Bd6+ Be5 Qb8 Rh7 Nf8 Qce7 Bc7 d6 Qa7 Bg7 Qa3 Kg5 f4 Be2 f3 Bd1 f2 Bf3 f1Q Qf4 Rh8 Bh6 Rg8+ Rg7 Kb1 Qff7 Qa2 Be4 Ba1 Ba3 Bb2 Bc5 Ra4 Bd5 Rf4 Bc4 Rf2 Bb5 Re2 Ba6 Re1 Qf5 Ba8 Bc8 Bb7 Nf3 Qh1 Ng1 Qh2 Qf1 Qh3 Nf3 g1N Bd4 Ba8 b7 Ne2 b8Q Nf4 Qb4 N4g6 Bb6 Bb7 Ng1 Qc4 Qe8 Qa6 Rd7 Qa2 Nd4 Ka1 Qef7 Qa4 Qe7 Qa2 Nc2+
qN4NK/1n4P1/3pq1b1/2P2n2/2B1N1q1/r1BPb1Qp/PQ2rQNb/2R3k1 b - - 0 1 illegal: No possible last move
8/1p1P2PR/3RnR2/1nNrbNk1/1PK1Q3/5Bb1/r1PprQq1/3Qq1Rb b - - 0 1 illegal: No proof kernel
QNq3Q1/3P4/kpB1qr2/2b1nN2/4pRn1/1PP1P2K/N1N1b1R1/1rb2Rq1 b - - 1 2 illegal: No possible last move, all moves rejected
1R3qNr/2p4r/1pnB4/P2Qb1Kb/nQ6/1PQRnP2/qr2N1P1/k5NQ b - - 0 1 illegal: No extended proof kernel
3n2Kn/3QPp2/kb3P1b/1R2r3/1N1r1RBn/3pnR2/2nP1QP1/BB2R2q b - - 1 2 legal: proof: c4 b5 b4 g5 a4 g4 axb5 g3 b6 Na6 b7 Nh6 b5 Nb8 hxg3 Nc6 g4 Ng8 g5 Nb8 f4 e5 b6 d6 f5 Qe7 Nc3 Qd8 Nd5 Bd7 Nf4 Bb5 cxb5 exf4 Kf2 Kd7 Kf3 a5 Ke4 c5 Kd5 h5 e4 h4 e5 a4 f6 h3 g6 f3 g7 f2 Bd3 f1N Qb3 a3 Qd1 c4 Qe1 h2 Rb1 a2 Rb3 a1N Qf2 c3 Ne2 c2 Nd4 Rh4 Bb2 c1B Nc2 Ra5 Be2 Nc6 Nb4 Nc2 Ba1 Bb2 b8R Bd4 b7 Kc7 e6 Kb6 Rf3 Bc5 Rg1 h1N Rc8 Nhg3 b8R+ Ka7 Rf4 Qc7 Bg4 Nd8 Rf3 Nf5 e7 Ngh6 g8B Bb6 Bh7 N1e3+ Ke4 Qc6+ Kf4 d5 Kg5 d4 Re1 Qc7 Bg6 Qh2 Rc4 Qh1 Bh7 Nd5 Bg6 Nfe3 Bd3 Nhf5 Be4 Na3 Bb1 d3 Rcf4 Nac2 Na2 Bd4 b6+ Ka6 b7 Bb6 Nb4+ Kb5 Rd4 Nf4 Re4 Ng6 Rd4 Rh2 Rdf4 Nfh4 Kh5 Bg7 Kg5 Bh8 Kh6 Bg7+ Kh7 Nh8 Kg8 Bh6 Rc8 Rh3 b8Q Rg3 Qc7 Ra4 Na2 Ka6 Qd7 Re4 Rc5 Re5 Rb5 Rh3 Kh7 Rg3 Be6 Rgg5 Bg4 Rgf5 Kg8 Re4 Rd1 Rfe5 Re1 Rd4 Nb4+
2Q3bK/1prn2N1/Bn2qpP1/1PbN1B1b/5B1R/2r1P1b1/P1B5/1Nk3Qb b - - 0 1 legal: proof: f4 e5 fxe5 g5 h4 d5 hxg5 Be6 c4 Bg4 cxd5 Bc8 b4 a5 e3 Qf6 Na3 Qe6 Ba6 Qg6 b5 Qd6 Rb1 Qd8 Rb4 axb4 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 c4 d4 f6 Kg6 b3 g4 c3 d6 Ke6 d7 Kd5 e6 Ke4 d5 b2 e7 b1B e8B h4 d6 c2 Ne2 h3 Bb2 c1B Nf4 h2 Qg1 Bd2 Nd5 Kd3 Be5 Qb6 d8N Be1 d7 Rh7 Bf4 Bg3 Ne6 Bc5 d8Q Nd7 Ng7 Kd2+ Kf7 Rb8 g6 Ne7 g5 Bc2 Qc7 Bd1 Nb1+ Kc1 Qd8 Ne5+ Kf8 Be6 Qc8 Bg8 Bd7 Qd6 Bf5 Qe6 Ne8 Ra8 g7 Rb8 g6 Ra8 Qd8 Rc8 Bc2 Rc7 Qc8 Rh4 Bg5 Rc4 Bf4 Rc3 Bf5 Bf7 g8B Nd7+ Kg7 Rd3 Bh7 Bg8 Kh8 Rb3 Ng7 Rc3 Qd8 Nc8 Bc2 Ncb6 Qc8 Bf7 Bg8 Qe4 Ne7 Bb3 Bd5 Qe6 Bde4 Bd5 Bf5 Bc4 Nd5 Bb3 Qf2 Bc4 Rg1 h1B Rg2 Bf3 Rh2 Bh5 Rh4 Qc6 Ne7 Bg8 Nd5 Qe6 Qg1+
5q2/RN1QR1Bn/1R1r1rr1/3PpnkP/K2b1pP1/1B3P2/2r4R/3bBn1Q b - - 0 1 illegal: No proof kernel
bNk2K2/1BbpB1P1/Pb1PqQ1n/1Qr3R1/2B1Rrbp/8/6BP/2nQ2n1 b - - 1 2 legal: proof: c4 a5 b4 e5 bxa5 g5 f4 b5 cxb5 Bg7 fxe5 Bf6 Nc3 Be7 Nd5 Bf8 Nf4 gxf4 Kf2 h5 Kf3 c5 Ke4 f5+ Kd5 h4 e4 f3 a4 c4 d4 f4 g4 f2 b6 f3 e6 c3 a6 c2 e5 Nh6 a5 Bd6 b7 Ba3 a7 Rh7 e7 Na6 b8Q Bd6 g5 Bc5 g6 Bb4 g7 Qb6 Ba3 c1B Bg2 f1N Ne2 f2 Rg1 Qg6 Qb5 Nc5 a6 Rb8 a8B Be3 Bb7 Ng3 Re1 Qg4 Kd6 f1B d5 Ba5 Nd4 Nb3 Nc6 Beb6 Re4 Be2 Ra2 Ra8 Nb8 Nc1 Rc2 Qh3 Rc5 Bg4 Bb4 Nge2 Ba3 Kf7 e6+ Kf6 e8Q Ng1 e7 Qe3 Bc6 Bb7 Qd8 Rh8 Bb4 Rf8 Ba3 Rf7 Qf8 Ra7 e8B Ba8 Bb4 Rc7 Bb7 Kg5 Ba3 Rf4 Bf7 Kf5 Ke7 Qe2 Rc3 Rc5 Rg3 Bc7 Qd8 Bab6 Kf8 Qe1 Ra4 Ke5 Re4+ Kd6 Bb4 Bh5 Rg5 Qe3 Ba3 Qh3 Qf6+ Qe6 Bb4 Bg4 Bg8 Bd8 Bf7 Kc7 Bg8 Rc6 Be7 Rc5 Bc6 Kc8 d6 Bdc7 Bf7 Qf5 Bc4 Qe6 Bb7+
1B1BRQRr/1K2p1q1/nP2P2R/1rp1Nr1b/2PR1b2/1Q3n2/b1P1B1k1/5r2 b - - 1 2 legal: proof: g4 b5 f4 h5 a4 g5 axb5 c6 d3 Qa5+ Nc3 Qa2 Nd5 Qc4 dxc4 Kd8 Ne3 Rh7 fxg5 Rh6 g6 Ke8 g5 Rh8 Ng4 hxg4 Kf2 a5 Ke3 d5 Kd4 Kd7 Kc5 Ke6 Kb6 Ke5 h4 Ke4 b4 f5 h5 c5 e3 d4 h6 g3 h7 d3 g7 a4 g6 g2 Qe1 a3 Nh3 Kf3 e4 g1Q e5 f4 e6 d2 Bd3 d1B Qe3+ Kg2 Ng5 f3 Rh6 f2 Be2 f1R Nf7 a2 Bd2 Nf6 g8Q Rf5 g7 Ng4 Ne5 Na6 Qb3 Bd7 Kb7 Nh2 b6 Ba4 b5 Nf3 Ba5 Rd8 Rc1 a1R Qf7 Rb1 g8R+ Bg7 Qf8 Rb8+ Ka7 Qd4 b7 Qg1 Bd8 Ra1 Qb4 Bb3 Kb6 Ba2 Qb3 Qd4 Rb1 Qg4 Rc1 Bf6 Ka7 Bg5 b6 Bf4 Rb1 Qg7 Rc1 Rc8 b8B Rb1 Kb7 Rb2 Qa3 Rb5 Qb3 Ng5 Bg4 Be2 Rd1 Nf3 Rd4 Rc6 Rd7 Rd6 Bh5 Rd1 Rd4 Rf1 Bg4 Nd2 Bh5 Bd1 Be2 Nf3 Bd3 Rf7 Qe8 Ng5 Rf8 Bh5 Be2 Rg8 h8R Rf5 Qf7 Nf3 Re8 Qg5 Qf8 Qg6 R8h7 Rh8 Rg7 Qg3 Rg8 Qg4 Qa4 Qg7 Qb3
1r3Q2/1QQn1q1p/1RbN4/3Pk2n/1BP1nn1R/R1p1K3/r1P1bP2/3N2bQ b - - 0 1 illegal: No proof kernel
3n2b1/4B3/3Pq3/Bp2Q1NQ/RPnP4/1bb1QrBp/4KbPr/1k1B2Nn b - - 0 1 legal: proof: b4 d5 e4 f5 exf5 a5 h4 g5 hxg5 a4 c4 Qd6 cxd5 Qa6 Rh3 Qa5 Rb3 axb3 a3 Qa6 a4 Qd6 Bb2 Bh6 Qh5+ Kd7 Bd3 Bf8 Ke2 Qf6 Nh3 Kd8 Nc3 Na6 Rh1 Kd7 Ng1 Nb8 Bc1 Kd8 Nb1 Qb6 Ke1 Qd6 Qd1 Ke8 Bf1 Qd8 f4 Kd7 f6 Kd6 d3 h5 f7 e5 a5 b5 a6 c5 f5 e4 a7 Ke5 f6 Kd4 g6 b2 d6 e3 g7 c4 Nh3 h4 Ng5 e2 Bd2 c3 Na3 b1B Nh7 c2 Rh3 c1N Ng5 Nh6 g8Q Qe8 Bf4 Kc3 Nc2 Kb2 Qg7 Ba2 Bg3 Nd7 Nd4 Qe6 Ndf3 Kb1 Ng1 Nb6 d4 Bb3 Kf2 Be7 f8B Nc4 f7 e1B+ Kf3 Rh7 Qe5 Bc3 Be2 Bf6 Qd2 Nd3 Bd1 Nf2 Ke2 Nh1 Be7 Rb8 f8B Nf7 a8Q Nd8 Qa4 Bb7 Qa3 Bd5 Qde3 Ra8 Qa7 Rh6 Qc5 Ra3 Bg7 Rh8 Nf7 Bg5 Bgf6 Bf4 Ng5 Rh5 Qf3 Be3 Qff4 Bf2 Qfe3 Be4 Qcd5 Bh7 Qdf3 Bg8 Qg4 Nc6 Bd8 Rh7 Ba5 Nd8 Qh5 Rf7 Be7 Rf3 Bf4 Ra1 Rg3 Ra3 Rg4 Rh3 Bg3 Rh2 Rf4 h3 Rf8 Nb7 Ra8 Nd8 Bc7 Ra7 Ba5 Rd7 Bf6 Rf7 Be7 Rf5 Bb6 Rf4 Ra4 Rf3 Ba5
n1Rn1qbB/BB1Prp1B/1r2k3/3N3R/2nbQP2/rp1PQ1K1/1Pr4R/8 b - - 1 2 legal: proof: e4 b5 a4 h5 g4 d5 gxh5 c6 exd5 b4 Nc3 Qd6 Nb5 cxb5 axb5 Qd8 f4 Kd7 Kf2 a5 c4 e5 h4 g5 h6 b3 b6 a4 h5 e4 c5 g4 d6 e3+ Kg3 a3 c6+ Ke6 h7 e2 c7 e1R h6 a2 b7 Nc6 b8R Ra3 Rh2 Nge7 Qc2 Bg7 Ne2 Qf8 Nc3 Nd8 Nd5 Bd4 Bd3 Ra6 Rb1 a1R d7 Rb6 Qc4 Bb7 c8B Ra3 Bc2 Ba6 Bb7 Nc8 Qa4 Rg8 h8Q Bd3 h7 Bf5 Qg7 Re2 h8B Bh7 Qh6+ Rg6 Qh4 Bg8 Qh3 Rc6 Bf6 Nb6 Rc8 Na8 Be5 Rc3+ Bd3 Rc2 Ra1 Rh6 Bh7 Rf6 d3 Re1 Kh4 Re3 Qf3 g3 Bd2 g2 Kg3 Re1 Qe3 g1N Bb4 Rh6 Bc5 Nf3 Ba7 Nd2 Rh5 Re2 Rah1 Nc4 R1h2 Rf6 Nb6 Ke7 Qb4+ Rd6 Nd5+ Ke6 Qe1 Rb6 Qh1 Re1 Qhe4 Rb5 Beb8+ Ne5 Qd2 Rb6 Qeg2 Nc4 Qf3 Re4 Qde3 Re5 Nb4 Kf6 Qfe4 Re7 Be5+ Ke6 Nd5 Ra5 Q4f3 Raa6 Qfe4 Ra3 Bh8+
1rq1Qb2/Q1NP4/1Bb1b1NN/2b1PnNK/k1p2Pp1/1Rn1QB2/6Pn/3r4 b - - 0 1 illegal: No proof kernel
3Q2N1/1P2r1k1/bQRp1n1p/3N1P1R/n2PQB2/3N1N1P/3bnK1n/1bqr4 b - - 1 2 legal: proof: e4 b5 a4 c5 axb5 f5 b4 g5 bxc5 g4 Be2 Bh6 exf5 Bg7 f4 Bf8 Bf3 gxf3 g4 Kf7 d4 a5 c4 e5 f6 e4 f5 a4 c6 d6 c5 e3 c7 a3 b6 a2 c6 e2 g5 Nd7 Qc2 Bh6 Bf4 Nc5 Kf2 e1N Qe4 Ba6 c8Q Qc7 b7 Na4 Nc3 Ra7 Rc1 a1N Qd8 Nb3 Rc2 Nc1 Nd5 Ne2 Rc3 Qc8 c7 Bd3 Rc5 Bb1 Rc6 Ra5 Nb4 Re5 Nd3 Re8 g6+ Kf8 f7 Kg7 f8N Nf6 Nd7 Re7 Nb6 Rhe8 Ke3 f2 Nd5 f1B Nf3 Bg5 Kf2 h6 Be5 Bd2 Bf4 Qb8 c8Q Qc7 Qa8 Qc8 Qb6 Qc7 Nh4 Nf3 Qd8 Rg8 h3 Qc8 Rg1 Nh2 Nf3 Qc7 Qd7 Ra8 Rg5 Ra5 Rh5 Rc5 Qb5 Rc1 Qd8 Rd1 Qb6 Ng1 Nc5 Ba6 Nd3 Ne2 Qd7 Kh8 g7+ Kh7 g8N Kg7 Qd8 Qc8 Rc4 Qc5 Rc1 Qa3 Rc3 Qc1 Rc6
r1Q1BK1N/N2Pr2r/rRpk4/3p4/P1Pn2Nb/Qq1bQ3/3bP1n1/4R2Q b - - 0 1 illegal: No proof kernel
rQ1n4/1p1N1BP1/B2rbB1P/pPK5/QNRPq1N1/1B6/2nk2rb/1r3n2 b - - 0 1 illegal: No proof kernel
n7/n1bR2NN/1N3P1p/P2rQ1b1/1KQ1p3/1b1Qr1nP/N5Pq/2Rn1B1k b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 g5 f4 Qd6 f6 Qd8 f5 Kf7 Ba3 Ke8 Bd6 Nh6 Be5 Ng8 Bf4 gxf4 d4 Kf7 Kd2 c5 Kc3 b5 a4 e5 d6 e4 d7 f3 h3 c4 d5 f2 d6 h6 a6 b4+ Kc2 c3 Kb3 c2 a7 c1B Ra3 Bg5 Qe2 Nc6 Qa2 Qc7 d8Q Be6+ Bc4 f1N d7 Qh2 Qc7 Bd6 d8Q+ Nge7 Nd2 Ng3 Ne2 Rb8 a8N Na7 Qa5 Nd5 Nf4 Nb6 Nh5 Bc7 Qd3 Rhd8 Rc1 Rd5 Nb1 Rg8 Ng7 Rf8 Kc2 b3+ Kc3 b2 Kb4 Rfd8 Nc3 b1N Qb3 R8d7 Na2 Nc3 Qc5 Nd1 a5 R7d6 Ba6 Rc6 Qd6 Rc3 Qdc4 Re3 Qe5 Bd7 Qcd3 Ba4 Qbc4 Bb3 Ra4 Kg8 f7+ Kh7 f6 Kg6 Ne8 Kh5 f8N Kh4 Ng7 Bb8 Nh7 Bc7 Qec3 Nh5 Qb2 Kg3 Qe5+ Kf2 Bb5 Kg1 Ra3 Ng3 Ba6 Na4 Nb6 Kh1 Qb1 Bc2 Rd3 Bb3 Rd2 Rc5 Rd7 Rd5 Nc8 Nb6 Qbd3 Na8 Nb6 Rc5 Bb7 Nb5 Bd5 Na7 Bf7 Rd5 Bh5 Kg1 Be2 Kh1 Bf1
QQ1RRb2/1p1n2nk/P1r5/1rbN2rR/R1P1Q1b1/4q1P1/NPKp4/2B4b b - - 0 1 illegal: No possible last move
4N1NB/P3p2q/3RQrq1/r1QP1P1p/N1b3nP/2KRbk2/2n5/R1qR1q2 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 c4 d5 cxd5 g4 Be2 Be6 exf5 Bd7 f4 Bc8 Bf3 gxf3 g4 Kf7 d4 Kf6 Kd2 c5 a4 h5 h4 b5 d6 f2 a6 f1Q g5+ Kg7 f6+ Kg6 a5 Kf5 d7 Ke4 a7 c4 a6 b4 f7 b3 d5 b2 g6 Qg2+ Ne2 Bh6 f8Q Qe8 d8R Kf3 g7 Qc6 Qg1 Qgg6 Qc5 Qb7 Nec3 Nc6 Rd1 Nd4 Na4 Nc2 Na3 b1Q Qf5 Nf6 g8N Q7b5 Bb2 Ng4 Qe6 Bg5 Bc3 Rh6 Rd6 Qh7 Be5 Rf6 Kc3 Qb6 f5 Be3 Rd3 Qf1 Nb5 Bd7 Nc7 Bb5 Rad1 Qc6 Kb2 c3+ Kb3 Qe8 Bd4 Qeg6 Ne8 Na3 Kb4 c2 Kc3 Bc4 Be5 Rf8 Bh8 c1Q+ Kb4 Nc2+ Kc3 Rb8 a8R Rb5 a7 Ra5 Rb8 Rf7 Rb1 Rf6 Ra1
n4B2/NR2nQb1/KPr1B2Q/p2Q2n1/P6R/2kQ3r/b1PpqnPB/2q5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 b4 d4 Bg7 dxc5 Bf8 Na3 bxa3 Kd2 Kf7 Kc3 d5 Kb4 e5 Kb5 h5 f4 a5 b4 d4 c6 d3 f6 Ke6 g6 Kd5 c7 Kd4 f7 e4 f5 h4 g7 e3 f6 h3 Bd2 a2 Rb1 e2 Bf4 e1N Nf3+ Kc3 Ne5 a1Q Bh2 Nf3 Nc6 Ng5 Na7 Ne7 g8Q Bg7 f8B Be6 f7 Na6 c8Q+ Nc7+ Kb6 Bc4 b5 Ba2 Qd7 Qe8 Qd5 Rc8 Kb7 Na8 Ka6 Rc7 Qh7 Qb2 Qh6 Qc1 Be2 Rc4 Bg4 d2 Qf1 Rc7 Be6 Rh7 Rb4 Rc6+ b6 Rh8 Rh4 Rh7 Bd6 h2 Qfd3+ Kb2 Re1 h1N Bh2 Nf2 Re3 Qb8 Ree4 Qe5 Rc4 Qe2 Rc3 Rd6 Rc7 Rc6 Rb7 Nc8 Bfd6 Ne7 f8Q Rh8 Q3b5+ Kc3 Qf7 Ng8 Bf8 Rh7 Qhg6 Rh5 Qh6 Ne7 Rg4 Rh3 Rh4 Qg4 Qf1 Qh5 Qfb5 Qe2 Qbd3+
3KQN2/2N2b1B/b1RR3q/Ppp2q2/1P3r1P/QrP1r1N1/3k2n1/r2N1R1n b - - 0 2 legal: proof: e4 h5 f4 e5 fxe5 a5 d4 g6 g4 a4 gxh5 a3 d5 Nc6 d6 Be7 b3 Nb8 Bb2 axb2 e6 Kf8 Qd2 Kg7 dxe7 Kf6 Qd1 Ke5 Kd2 Kd6 e5+ Kd5 Ke1+ Kc6 Kf2 Kc5 Kg3 Kb4 Kh4 f5 Kg5 c5 h4 d5 a4 b5 h6 d4 h7 f4 a5 f3 Ra3 f2 Bc4 f1Q Rh3 d3 Ne2 d2 Bd5 Qb6 e8Q Nd7 e7 Nf8 e6 Ba6 Nbc3 b1R Qc1 d1B Qc8 Nh6 e8R Nf5 Kf6 g5 Be4 g4 Rf3 Ng3 Ke7 Nh1 Ng3 Ng6+ Kd7 Ra1 e7 Rf8 h8N Nf4 Bh7 Qh6 Kd8 Ng2 Ng6 Rf4 Nf8 Be2 Rf2 Bc4 Nd1 Bf7 Rd2 Rb1 Rd6 Qd3 Ra1 Qf5 Nb2 Kc3 b4 Qfg6 Qe3+ Qd3 Qf3 Kd2 Nd1 Qd5 Qa3 Rb3 c3 Rb8 Rc1 Rb6 Rd7 Re6 Rd6 Re3 Rc2+ Ke1 Rf2 Qd3 Rf1+ Kd2 Nd7 Qd5 Rh8 Qd3 e8N Qd5 Rc6 Qe5 Nf8 Qf5 Nh5 g3 Nc7 Ne1 Qb8 g2 Ng3 g1R Rg8 Ng2 Rgg6 Qe5 Rgd6+ Qd5 Rf3 Rge1 Rf1 Qd3 Nf2 Ra1 Nd1 Qd5 Qc8 Qd3 Qd7 Qd5 Qe8 Qd3 Nd5 Qf5 Nc7+
1rQq1bNn/4rn1K/bpB2P2/2bQ1pB1/1PqPQ1Q1/2R4R/2kP4/4Rb2 b - - 0 1 illegal: No proof kernel
1b1rNq1n/2Pk1Q2/2p2nQR/6Pb/6rp/B1P1B1RB/2BqrPKR/7r b - - 0 1 illegal: No proof kernel
K1R1R1q1/2Pp3k/Q2r3q/q5Br/3q4/3P1RbP/P1R2npQ/1bnBBN2 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c6 b4 Ra6 bxa5 Ra8 Nc3 c5 Nd5 Nc6 Nb4 cxb4 Bg2 Nb8 Bh3 Ra7 Bf1 Ra8 Ke2 Kf7 Ke3 b5 Kd4 g5 Kc5 Kg7 f4 b3 c4 g4 h3 b2 a6 b1Q d3 g3 a7 g2 h6+ Kh7 f6 b4 f5 b3 f7 b2 f6 Bb7 Be2 Nc6 Nf3 Na5 Nd2 Bc6 Re1 Ba4 Nf1 Bc2 Bg5 e5+ Kb5 e4 Ka6 e3 c5 Nb3 Kb7 Be7 f8R Nc1 c6 Bd6 c7 Bg3 f7 Nf6 Qd2 Qe8 Bd1 e2 Qf4 Ne4 Qe5 Qe6 Rc8 Nf2 f8R Qg8 Rf3 Rb8+ Ka6 Rb3 a8Q Rb6+ Ka7 Rd6 Kb7 Nb3 Qaa5 Qc1 Ka8 b1Q Qa6 Qbb2 Rb1 Qd2 Rc1 Bb1 Rc2 Qd4 Qf4 Nc1 Qe5 Bh4 Qh2 Bg3 Ne3 Kg6 h7 Qa5 Rh1 e1Q Nf1 Qee6 Rg1 Qf8 Rh1 Qh6 Rg1 Rf8 h8B Rf5 Bhf6 Kh7 Rh1 Qde3 Bc3 Qg8 Be1 Qd4 Ne3 Rf4 Bb4 Qae5 Re1 Qa5 Nf1 Rh4 Ree8 Rh5 Be1
3q1bq1/B1k5/nn3B2/1p3b2/1PPpq1PR/QQ1r4/Q1RP3N/Kn1B1b1B b - - 0 1 legal: proof: e4 c5 h4 g5 hxg5 f5 exf5 b6 b4 c4 Nc3 a6 Nb5 Ra7 Nd4 Rb7 a4 b5 a5 Rb6 axb6 a5 Nb3 cxb3 f4 d5 c4 Kd7 g4 e5 b7 h5 f6 e4 f5 b2 g6 b1Q f7 e3 f6 e2 g7 h4 Bb2 h3 Ra2 a4 Nf3 a3 Nh2 Ne7 g8B Na6 b8B Qh7 Ba7 Kc7 Qb3 Bf5 Bc3 Qg6 Rc2 a2 Bh7 a1N Bg2 Nc8 Qa3 Bd6 f8Q Qg8 f7 Nb6 Bf6 d4 Qh6 Be7 f8Q Bc5 Qe8 Bf8 Bg6 Rh7 Qhe3 Re7 Qeb3 Re3 Qba2 Rc3 Qe3 Rd3 Kf2 e1Q+ Kf3 Qh4 Ke2 Qhh7 Kd1 Qhe7 Kc1 Qe4 Nf3 h2 Kb1 Nb3 Kb2 Nbc5 Ka1 Nca4 Bh7 Rb3 Bg6 Nc3 Qd3 Nb1 Qc3 Qe3 Qcb2 Rd3 Qbb3 Bd7 Be4 Bf5 Bf1 Qf4 Be2 Qe5 Bd5 Qe3 Bd1 Qe4 Re1 h1B Nh2 Bf3 Re3 Be2 Rh3 Bf1 Rh4 Qe5 Bg2 Qe4 Bh1
2N1K3/3p2Nr/qr4PQ/1n1P2p1/NRk3P1/2B1Qr1r/b1n2NBP/3q2rB b - - 0 1 illegal: No proof kernel
1R2bq1n/2p1k1Pr/1Rb1bRbp/5QQP/1b6/1P2Rb2/1QPr1NN1/2B1K3 b - - 0 1 illegal: No proof kernel
R3N3/Kn1Pn1Bk/P1b2r1Q/r4N1Q/1Q3pn1/1P3qp1/1b3pP1/r1R1R1R1 b - - 0 1 illegal: No possible last move, all moves rejected
1n5N/Q3P1QK/R1nPrq1R/1p1p3N/1P2rb2/1bRB1b2/P1pk2RQ/r7 b - - 0 1 illegal: No proof kernel
bNQ1Nn2/b1K1NpP1/1B1p1N2/2Q3r1/3P3P/nq1Rn3/Q1pPR3/r3kr2 b - - 0 1 illegal: No proof kernel
2Qr2r1/R1Bq1Pp1/2B1nQ2/KRPpn2B/b1Pb3p/3b1N2/2R1r1P1/3kR3 b - - 0 1 illegal: No possible last move, all moves rejected
3B3r/pn1Nq1Pq/1n3PB1/B7/k2b2QN/2B3p1/R2P1pP1/KN1n1Qrb b - - 0 1 illegal: No proof kernel
K7/3npRB1/1N1rNPkb/1P1P1p2/1Rb1rP1Q/Nn1QQn2/1q2p3/qQ6 b - - 0 1 illegal: No proof kernel
1n1b2R1/2p3N1/k1P1r1RP/2Qqr1Qb/Q1P3BN/2qN1p1p/1bP1n1N1/1K6 b - - 0 1 illegal: No proof kernel
R1n1n3/3N3K/Pqk1B3/pprbN1b1/PP2N2p/RN1R2bP/5Q2/4Qrq1 b - - 1 3 illegal: No proof kernel
2b1QQQ1/p2n1R2/2r5/1qp1P2K/1Nq2P1P/q1P1N3/R3BpR1/Qk3rbn b - - 0 1 illegal: No possible last move
3q3R/BNqpQB1P/nr1pR3/1r1qPb2/1p3B2/R2P2Kb/1P2Qn2/2Bk4 b - - 1 2 legal: proof: f4 b5 a4 e5 fxe5 h5 g4 Qg5 gxh5 Qg2 a5 Qg5 Na3 Bc5 Nc4 Bb6 axb6 Qd8 Nd6+ cxd6 Kf2 Ke7 c4 Ke6 h4 Kf5 e4+ Kf4 b7 a5 h6 f5 h7 g5 e6 g4 c5 a4 e7 b4 e8Q a3 c6 a2 e5 g3+ Kg2 Nh6 h5 Ng4 h6 Nf2 c7 Ra5 Qe7 Na6 b8B Rb5 Ba7 Bb7+ Nf3 Be4 c8R Kg4 d3 f4 Qe2 Bf5 Ra8 Rg8 h8B Rf8 Nd2+ f3+ Kg1 g2 Kh2 Qc7 h7 Rfb8 Ne4 R8b6 Nc5 Qd8 Nb7 Qc7 Rb1 a1Q Bf6 Qa2 Ra1 Qd5 Ra3 Qdc4 Bfg5 Nd1 Qf2 Qd5 Rh8 Qd8 Qe3 f2 Qe1 Kf3 Ra1 Bg6 Ra3 g1Q+ Kh3 Bf5+ Kh4 Qg2 Bgf4 Qc6 Rg1 Qcc7 Qd2 Qgg8 Rg6 Qd5 Qe1 Bg4 Bh3 f1B Rf6 Nf2 Rh6 Be6 Bf5 Bh3 Bg6 Bef5 Bf7 Ng4 Re6 Nf2 Qc3 Ke2 Kg3 Kd1 Qe1+ Kc2 Qe3 Kd1 Qe2+
2B2K2/Nr1P4/1bpr1QR1/np3NpQ/1P1q1R2/b1P1NPq1/1N1Q4/3r1k1n b - - 0 2 legal: proof: e4 f5 a4 d5 exd5 f4 a5 f3 a6 Kf7 gxf3 Nh6 f4 Ke8 f5 Ng8 b3 b6 Bb2 h6 Bf6 Bb7 Bg5 hxg5 axb7 Rh4 Ra3 Rh3 Ra1 Rh8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 a5 Ke6 Kd4 Kf7 e5 h4 g4 c3+ Ke4 d4 g5 h5 g3 d6 b5 b4 g2 f3+ Ke3 f6 Kf2 d5 a4 h6 e4 d7 a3 h7 a2 d6 e3 Na3 e2 Nh3+ Kg3 Nc4 e1R Qd2 g1B Ne3 Ne7 Nf4 Nbc6 b8N Rd1 Rh4 Ra6 Nd3 Nf5 Bh3 Na5 Nb2 Ra7 Bg4 Rb7 Nc6 Qb8 Na7 c6 Rh6 Be7 Rg6 Rd8 h8Q Qc7 Rb1 a1Q Qh5 Qb6 Rc1 Qd4 Bh3 Bf8 Kg8 Qb1 f7 Bg7+ f8N Be5 Kf7 Bf4 Ne6 Qbe4 Rb1 Qee5 Ng7 Bf2 Ra1 Kh2 Rb1 Ng3 Ngf5 Kg1 Ra1 Nh1 Ra4 Re8 Bg4 Re6 Kf8 B4g3 d8Q Bf4 Ng2 Kf1 Qf6 B4e3 Bh3 Qg3 Ra3 Nb3 Ra6 Na5 Rb6 Rd7 Rb7 Ree7 Rb8 Rb7 Re8 Red7 Re4 Bg1 Rf4 Bgf2 Qc2 Bc1 Qd2 Be3 Nd3 Ba3 Nb2 Bf2 Nfh4 Re7 Bc8 Re6 d7 Rd6 Nf5 Qc4 Qc2 Bb6 Qd2 Qd4 Nge3+
R2K1bq1/3N4/1n1n3N/BPp1p1r1/1b1qPQ2/2k2QrQ/1pPq1P1R/4R2R b - - 1 2 illegal: No proof kernel
1Qr1BN1r/1KR2n1n/p1Q5/P1p5/B1Rb1Pk1/4p1qQ/q1P1bB1P/n3B3 b - - 0 2 legal: proof: e4 c5 g4 f5 exf5 h5 gxh5 Nh6 b4 Ng8 b5 Rh7 Nc3 Rh8 Nce2 Nf6 Nd4 Ng8 Nc6 dxc6 bxc6 Qd6 Bh3 Qc7 Bf1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 d4+ Kh4 f4 b5 a4 g5 f6 e5 f7 b4 d5 b3 h6 g4 a5 a6 h7 b2 d6 b1N Kd5 e4 d7 e3 c7 g3 Nf3+ Kh5 Bb5 g2 Ra4 g1Q Bd2 Nc6 Ng5+ Qg4 Rg1 Nh6 Rc4 Na7 Ne6 Qe7 d8B Nc6 Ba4 Ne5 Be1 Ng8 Qf3 Bg7 f8Q Qf7 Bdh4 Nd2 Bhf2 Nb3 Qh3+ Qh4 Qd6 Na1 Qc6 Nf6+ Kd6 Rb8 Nf8 Bg4 c8B Be2 Bd7 Rc8 Rg6 Qg8 Be8 Qf7 Rb4 Qa2 Rc4 Nfg4 Re6+ Nf7+ Kd7 Bd4 Re7 Rd8+ Kc7 Nf6 Kb7 Rc8 Qhg2 Qg3 Rc7 Kg4 Qf1 Rg8 h8Q Nh7 Qe5 Rh8 Qed6 Bf6 Qe5 Bg7 Qb2 Bd4 Qbb6 Nhg5 Qa7 Nh7 Qb8 Qh4 Qfg2+ Qg3 Qh3+
r1R3N1/p4NQQ/6bP/n3BP1n/P1np2p1/b2Pk2R/R4qQ1/1K1Rr1q1 b - - 1 2 legal: proof: e4 f5 exf5 g5 f4 c5 b4 Nh6 bxc5 Ng8 g4 h5 Bh3 Nc6 fxg5 Qa5 g6 Nb8 g5 Qd8 Bg4 hxg4 c4 e5 a4 Ke7 h4 b5 d3 d5 Kd2 b4 Kc2 e4 c6 Kd6 h5 Kc5 g7 Kd4 c7 e3 h6 e2 g6 e1Q c5 Qee7 c6 Qg5 Qd2 Nd7 Ra2 Ndf6 Nh3 Bd7 c8R Qb6 c7 Nh5 Qg2 Qh4 Nc3 b3+ Kb1 b2 Ng5 Ba3 Rh3 Ne7 g8Q Be8 g7 Bg6 Bf4 Qf2 Nf7 Nc6 Ne4 Na5 Qh7 Re8 g8Q Qc5 Bg3 Ke3 Qgg7 d4 Rb8 Qc3 c8R Qce1+ Rc1 Qeg1 Nf6 Re4 Ng8 Re7 Ra1 Re8 Rc8 Re4 Ka2 b1N+ R1c2 Nd2 Rd1 Ndc4 Kb1 Re5 Ra2 Re6 Bh4+ Kf4 Bf6 Re1 Rh4 Ke3 Be5 Qff1 Rh2 Qff2 Rh3+
r5k1/2BQBp2/1p1nNr1b/nn2P1p1/PK3Q2/5PBR/bP4q1/q1NBQ3 b - - 0 2 legal: proof: d4 e5 dxe5 b5 c4 h5 cxb5 Nf6 g4 Ng8 gxh5 Nh6 b6 Ng8 b7 Na6 a4 Be7 Ra3 Nb8 Rb3 Bf8 Rb6 axb6 Kd2 d5 Kc3 g5 e4 c5 h4 c4 f3 Bc5 h6 Kf8 h7 Ra5 e6 Nf6 h5 Nfd7 e7+ Kg7 e8Q Nf6 e5 Be6 Ne2 Ra8 Bf4 Nc6 b8B Bf8 Nc1 Na5 Qd7 Ne8 Qe1 Nd6 Bg3 d4+ Kb4 d3 Be2 c3 Rh3 d2 Na3 d1N Bc7 c2 Nb5 Nc3 Bd1 Ba2 Nd4 Rg8 h8B+ Kh7 h6 Rg6 Nde2 Rf6 Nd4 Kg8 Ne6 Qc8 Bg7 Qa6 Bh8 Qf1 Bg7 Ncb5 Bh8 Rf5 Bf6 Qg2 Bfd8 Rf6 h7+ Kh8 Be7 Bh6 Nc5 Kg7 h8Q+ Kg6 Qhd8 Kg7 Qg4 Kh7 Qdd7 Kg8 N1b3 c1Q Ne6 Qb1 Nc1 Qa1 Qf4
N7/R1n1bk2/5Pqr/P1n1PrrQ/Q2B1pr1/6pN/bp2Q1P1/4RRKR b - - 0 1 illegal: No proof kernel
1R3r2/3R1p1p/Q2K2nQ/2BQnk2/3PP1N1/p1Pnr2q/PnN1b1R1/2b4Q b - - 0 1 illegal: No possible last move, all moves rejected
8/N1NbR1pK/Q1R2q2/QNB1p1P1/1n2Nr1k/PPP1pr2/b2b3R/1b4n1 b - - 0 1 illegal: No proof kernel
n1r1B1Q1/4k1Nb/2Bnpq2/P3Q1B1/1rb1PB2/N2pKRN1/2pP1P2/1r5r b - - 0 2 legal: proof: g4 a5 b4 h5 bxa5 b5 a4 f5 gxf5 b4 c3 e6 Ra3 b3 Ra1 Bb4 cxb4 Qh4 Ra2 Kd8 Rc2 Ke8 Rc4 Qd8 Rg4 hxg4 h4 c5 e4 d5 Ke2 g5 b5 g3 f6 b2 h5 g2 h6 d4 a6 c4 f7+ Kf8 h7 g4 a5 c3 b6 c2 a7 g3 b7 Ke7 f8N Nd7 b8B Nb6 Rh3 Nh6 Na3 b1B Bb2 Bd7 Bf4 Rc8 a8B Nf5 Bc6 Ba2 Qa1 Be8 Nd7 Bg6 Nf6 Na8 Ne8 Nd6 Ng7 Bc4+ Kf3 Re8 h8Q Bh7 Ne2 g1R Qg8 g2 Ng3 Rh1 Be2 d3 Ke3 g1R Bh5 Rf8 Bhe8 Rb1 Bbe5 Rf5 Bh6 Rh5 Bef4 Rhb5 Qe5 R5b3 Bh5 Qf8 Bhg5+ Qf6 Bhe8 Rb5 Ne2 R5b2 Rf3 Rb4 Ng3
4B1Q1/8/QqR1RbK1/2N2PQR/pqbqQp1P/PnNp4/1r1P1n2/2n1k3 b - - 0 1 legal: proof: f4 a5 b4 f5 Bb2 b5 Bf6 e5 Bg5 c5 bxc5 h6 fxe5 hxg5 g3 f4 g4 Ra6 Bg2 Rf6 Bf1 Rf5 gxf5 Qf6 Bh3 Qe7 Bf1 Qd8 Kf2 Ke7 Kf3 d5 Kg4 a4 c4 d4 h4 b4 e4 d3 e6 Kf6 e7 Ke5 e8R+ Be6 c6 b3 c5 b2 a3 Na6 c7 Qd4 c8Q Be7 c6 Bc4 c7 Nh6+ Kh5 g4 Bg2 g5 Ne2 g3 Re1 g4 Kg6 Nc5 Qa6 Nb3 Nbc3 b1Q c8Q Qb2 Bh1 g2 Rc1 g1Q Bg2 Rh7 Rh8 g3 Qg8 Bf6 Bf3 g2 Bh5 Qb6 Rc2 Rb7 Qa1 Kd6 e5+ Kc5 e6 Qd4 e7 g1N e8Q Ng4 Qe3 Nf2 Ne4+ Kc6 Qa2 Qbc3 Rcc1 Qb4 Nc5 Kd6 Qg3 Ke5 Qg5 Rb8 Bf3 Rb7 Bc6 Rb8 Be8 Rb7 Ne6 Ke4 Rh5 Kf3 Nc5 Rb8 Nc3 Rb7 Re6 Ne2 Rc2 Nec1 Ne2 Ne4 Rc3 Kf2 Rc2 Ke1 Qb2 Qe5 Qd4 Nf2 Qe4 Qd4 Nd7 Bb5 Rcc6 Bc4 Nc5 Rc7 Rcd6 Bd5 Nb7 Rc2 Nc5 Bc4 Rc6 Rb2 Nc3+
1R5Q/Bb1Qbrbq/1n2B1B1/1kN1pp1q/1n1p1PQ1/3nP3/4PP2/1NQK4 b - - 0 1 illegal: No proof kernel
3K1R2/1q1Q4/BN2qnQP/2Q4p/p2rR3/PR1r2nP/PQ3Np1/q3bkr1 b - - 0 1 illegal: No proof kernel
1RR5/Bbp2pR1/Pq4P1/1k1pn3/1B1P2n1/q1QrNP2/B1K2Bn1/1Q1r3q b - - 0 1 legal: proof: c4 b5 cxb5 g5 b4 a5 h4 Bg7 hxg5 Na6 b6 Bh6 b5 Nb8 Na3 Bf8 e4 d5 g6 Bh6 e5 Be3 Nc2 Bc5 Nb4 Bd6 exd6 axb4 d4 Kd7 Kd2 h5 g4 e5 a4 b3 g5 e4 a5 b2 b7 b1N+ Kc2 h4 b6 Kc6 g7 e3 a6 e2 d7 e1Q Ba3 h3 Bb4 h2 Bc4 Qe5 Ne2 Qe3 Nc3 Qf6 d8B Qh6 Ba2 Nd7 b8B Bb7 Ba7 Nd2 Qb1 Nf1 Nd1 Ngf6 g8Q Qa3 Ne3 Ng4 f3 Qd6 Qh7 Rb8 Qd3 Nde5 Qc3+ Kb5 g6 Qe6 Bh4 Rbe8 Bf2 Rb8 Rg1 h1Q Rg2 Rh3 Rh2 Rg3 Rh7 Rg1 Qbb2 Re8 Re1 Qf6 Qb1 Qd6 Nd1 Re6 Rg7 Nfe3+ Kd2 Ng2 Ne3 Re8 Kc2 Qf6 Re2 Rd1 Re1 Bc8 b7 Qb6 b8R Bb7 Rg1 Nf4 Rg3 Ng2 Rh3 Re6 Rhh8 Rc6 Rhc8 Rc4 Bc5+ Rb4 Qcb2 Rb3 Bb4 Rbd3 Qc3
knQ1KQ2/2p5/1PP2Np1/1P1r2bq/1qB1Br2/B3NN1R/2pr2P1/1N3bb1 b - - 0 1 legal: proof: b4 d5 c4 b5 a4 f5 axb5 g6 h4 f4 c5 f3 h5 Bg7 h6 Nd7 exf3 Bf8 f4 Ndf6 f5 Nh5 Ra2 Kd7 Rc2 Ke8 Rc4 Ng7 hxg7 dxc4 Ke2 Kd7 Ke3 a5 Ke4 h5 Kd5 e5 d4 c3 f4 c2 f6 e4 f7 h4 f5 a4 f6 h3 b6 e3 Bb2 e2 Qd3 e1Q Ba3 h2 Qa6 Be7 f8Q Rh4 f7 Bg5 Bc4 Rf4 Nf3 Rb8 Qa8 Ba6 Qb7 Qde8 c6+ Kd8 Qa8 Kc8 Bd3 Qh4 Be4 Bf1 b5 Qd8+ Ke6 Nf6 g8B Qh5 d5 Nd7 d6 Qe8+ Qe7 Qd8 f8N Qe8 Nh7 Qf8 Bb4 a3 Nf6 a2 Ba3 a1B Qg7 Bd4 Qf7 Qg7 Ke7 Bg1 Ke8 Qgh6 Qe6 Qh4 Qf7 Q6h5 Qf8 Qe1 Bc4 Qb4 Qa5 Ra8 Qa6+ Kb8 Qh6 Ra7 Qf8 Ka8 Qc8+ Nb8 d7 Ra4 d8N Rf5 Ne6 Rd5 Ng7 Bd4 Qh8 Be2 Bb3 Qc3 Qf8 Bd3 Rc1 h1R Nf5 Rd1 Ba2 Bc4 Bd3 Rd2 Rh1 Bg1 Ne3 Qd4 Bf5 Bf1 Rh3 Qb2 Bd3 Rf4 Bac4 Qb4 Be4
n2nb3/2pb1R2/K5p1/3Rb2P/k1PR2PQ/r2BpBN1/P3R1nQ/3q1qB1 b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 a5 b4 h5 bxa5 b5 g4 e4 Nc3 h4 Nce2 Rh5 Ng3 Re5 fxe5 hxg3 Rb1 Ra6 Ra1 Rh6 Bg2 Rh7 Bf1 Rh8 Ke2 Kd7 h4 f5 d4 g6 a6 f4 a7 g2 a8B b4 h5 b3 d6 b2 d5 b1Q Qd2 Ne7 e6+ Ke8 c3 Nec6 e7 Kd7 e8R f3+ Ke3 f2 Bd3 f1B Ne2 g1N Ng3 Qf6 Qh2 Bg7 Rf8 Nd8 Rf7+ Qe7 Ba3 Ne2 Bc5 Qd1 Rc1 Nf4 Rc2 Bg2 Re2 Be5 Rhe1 Rf8 Rd2 Bf3 Ree2 Qf1 Rd1 Ng2+ Kd2 Re8 Bg1 e3+ Kc2 Be4 Kb3 Bf5 Ka4 Ba6 Ka5 Bb5 Rf8 Qf6 Rdd2 Qd1 Bb7 Be6 c4 Qff1 Bc6+ Kc8 Rf3 Nd7 Rf7 Nb6 d7+ Kb8 d6 Ka7 Bf3 Na8 Bb1 Rh8 Rd5 Kb7 Bd3 Kc6 Rd4+ Kc5 Rf8 Bc6 Ka6 Kb4 Rf7 Ka4 Rd5 Nb7 d8R Be8 d7 Rf8 Rb8 Bf5 d8Q Bfd7 Qdh4 Nd8 Rh7 Rf6+ Rb6 Rc6 Rf7 Rc5 Rb3 Rb5 Rb1 Rb3 Rd4 Rc3 Rb5 Ra3 Rbd5
2b4q/4QnR1/BQpq3N/4Pp2/1RQprP1n/Rbq1N3/1RPP1K2/4n2k b - - 2 3 legal: proof: g4 e5 h4 a5 a4 b5 axb5 f5 g5 e4 b3 Be7 Bb2 g6 Bd4 Bf6 gxf6 g5 f3 g4 Bf2 e3 Qc1 exf2+ Kd1 Ne7 Qb2 Rg8 Kc1 Rg5 hxg5 Ng8 Nc3 Na6 Qb1 Rb8 Kb2 Rb6 Qd1 Nb8 Nb1 Re6 Kc1 Re7 Ra3 Rf7 Ra1 Rf8 Nc3 Ne7 Nb1 Rh8 Bg2 Ng8 Bh3 Na6 Bf1 Nb8 e4 Kf7 f4 Kg6 b4 h5 f7 d5 f8Q d4 b6 h4 b5 Kh5 g6 c6 g7 a4 b7 a3 b6 a2 Nf3 h3 Qf6 h2 Bh3 f1B Na3 g3 Rg1 h1Q Ng5+ Kh4 Nc4 g2 Qe7 Kg3 Ne3 Kh2 Nf7 Nh6 g8Q Nd7 b8R Nc5 b7 Bc4 e5 Bb3 Qf3 Nd3+ Kd1 Qd6 Ke2 Ne1 Kf2 Rh7 Qe2 Rg7 Qc4 Rg3 Bg4 Rh3 Qgd8 Rg3 Nd5 Re3 Be2 Re4 Bf1 Qd7 Ne3 Qd6 Rd1 a1Q Qb6 Qb2 Ra1 Qc3 Ra3 Ba4 Be2 Bb3 Rf1 g1N Bd3 Ng8 Nh6 Ngf3 Rg1 Nh4 Bf1 Nf6 Rg7 Nh7 Qd5 Ng5 Ba6 Nf7 Qc4 Qcb4 Ra8 Qc3 b8R Qd8 Ra4 Qh8 Rb4 Qg1+ Ke2 Qg6 Kf2 Qe6 Bb5 Qd5 Ra3 Kh1 Ba6 Qd6 Qbc5 Qe8 R8b5 Qh8 Qb6 Ba4 Rb2 Bb3 Rb4
1rN2Q2/6qB/Qbp1R2p/b1P1N3/k6n/1bQp2P1/PNQ2bRP/Kb3r2 b - - 0 1 illegal: No proof kernel
RbKQ1N2/3p4/krn4n/p1Pn1R2/PB1QQ3/rp1qB3/nP2r2P/QB6 b - - 0 1 illegal: No possible last move
Q1QN1N2/b2pp3/1nbR1r2/1PkP1NbN/2qp1Pn1/3BP3/R7/K2Rn1n1 b - - 0 1 legal: proof: g4 c5 h4 a5 a4 g5 d4 f5 gxf5 b5 axb5 g4 d5 Ra6 Be3 Rg6 Bd4 Rg5 hxg5 cxd4 Kd2 h5 Kc1 g3 f4 g2 c4 a4 b4 h4 Kb2 h3 e3 h2 b6 Nf6 g6 Rh6 g7 Qc7 g8R Ng4 b5 Kd8 b7 Nc6 b8N Bb7 c5 Rf6 Nf3 g1N Nc3 Na5 Ne2 Bc6 Rg6 Bh6 Nh4 Bg5 Ra2 a3+ Ka1 Nc4 Ng3 Nb6 Bd3 Qc8 Nh5 Kc7 Qa4 Kb7 Rg2 a2 Qa8+ Kc7 Kb2 a1B+ Kb1 Nf3 Ra2 Bb2 Rd1 Ba3 Ka1 h1N Rh6 Ng1 Rg6 Rf7 f6 Nhf2 Nf5 Rf8 f7 Bb4 Be4 Nd3 Rd6 Ne1 Bb1 Rh8 f8N Rh6 Bd3 Rf6 Nh4 Qa6 Nf5 Qa4 Bc2 Ba3 Bb1 Qc4 Bd3 Bb7 c6 Bc5 Ra5 Na4 Ra7 Kb6 c7+ Bc6 c8Q Bb4 Nhg3 Kc5 Nh5 Ba5 Ra6 Bb6 Ra5 Ba7 Ra6 Nb6 Ra5 Kb4 Ra2 Bb7 Nc6+ Kc5 Nd8+ Bc6 Qa6 Kb4 Q6b7 Kc5 Qbc8
KQ6/P2q4/1p1RR2q/QPq5/bp2pQN1/2r1R1b1/Q2qP1NP/1rnB3k b - - 0 1 legal: proof: f4 a5 g4 d5 c4 h5 cxd5 e5 gxh5 e4 b4 Ke7 b5 Nc6 Ba3+ Ke8 Bb4 Ne5 fxe5 axb4 Kf2 Ke7 Ke3 g5 Kd4 f5 Kc5 g4 a4 c6 d4 f4 e6 Kf6+ e7 Kg5 h6 Kh4 h7 g3 a5 g2 a6 f3 a7 f2 d6 Bd7 e8R Qg5+ Kb6 c5 d5 c4 Na3 c3 Qd2 c2 Nf3+ Kh3 Ne1 c1Q Nc4 Be6 d7 Rd8 d6 Nf6 Qf4 Qd2 Ne5 Qh6 Ng4 Nh5 Ra3+ Bb3 Re6 Be7 Rg1 Bh4 Ra6 Rhe8 h8Q Ba4 Qb2 Bg3 Qa2 Rf8 Kc7 Rc8+ Kb6 Rc7 d8Q Rc3 d7 Rg8 Qdb8 Rgc8 Qf7 Nf4 d8Q Nd3 Qff4 Nc1 Qdc7 Rb3 Rd6 Rb1 Qd8 Bb3 Ra3 Ba4 Re3 Rc3 Re6 Ra3 Kc7 Rab3 Kc8 Ra3 Qa5 b6 Kb7 Rc3 Rh1 Kh4 Ka8 g1Q Bh3 f1Q Rd3 Qd4 Re3 Qf2 Rf1 Qg1 Rff3 Qd7 Ng2+ Kh5 Rd3 Qge3 Rdd6 Qc5 Qff8 Kg5 Re3 Kh5 Qf7+ Kg5 Qf4+ Kh5 Ne1 Kh4 Re7 Qdd4 Nf2+ Kh5 Be6 Qd2 Ng4 Kh4 Bb3 Kh3 Ree6 Qc4 Nd3 Kg2 Ne1+ Kh1 Ng2 Qc5 Bd1
2b1nQn1/2p1B1pK/nN2k2R/1nP3PB/PQ1bBp1R/1r5P/5Qr1/3r3Q b - - 0 1 legal: proof: d4 a5 b4 e5 dxe5 Qg5 bxa5 Qd8 f4 Bc5 e4 Ke7 e6 Kf6 e5+ Kf5 Na3 Bf8 e7 Ke4 e6 Ra6 Bd3+ Kd5 Bf1+ Kc6 Nb1 Ra8 g4 d6 g5 Qe8 Nd2 h5 Ne4 Qd7 Nf6 Qe8 Ng4 hxg4 Ke2 Kc5 Ke1 Qb5 Bd2 Kc6 Bc1 Qe5+ fxe5 Kc5 Bh3 Kb5 Bf1+ Kc6 Kf2 f5 Kg3 b5 Kf4 d5 e8B+ Kc5 a4 b4 c4 d4 a6 b3 a7 b2 e7 b1N e6 Kd6 Nf3 d3 Nd2 g3 Bg2 Rh5 Qe2 Ba6 Be4 g2 Qf2 Rh3 Bh5 g1R e8Q Be7 Qb5 Bf6 e7 Na3 e8Q Rg2 Qf8+ Ke6 Qbb4 Nb5 Ba3 Bc8 Rae1 Na6 Re2 Rb8 a8Q Bd4 Re3 Kd7 Rg3 Nd6 Rg4 Ne8 Rh4 Rb6 Qd5+ Rd6 Qa8 Ba7 Ke5 f4 Kf5 Rd5+ Kg6 Bd4 Kh7 Rf3 c5 Ke6 Nc4 d2 Bb2 d1N Nb6 Rb3 Qb7 Be3 Bf6 Nc3 Be7 Rd1 h3 Bd7 Re1 Nb5 Re2 Bc8 Rd2 Ke5 Rd6 Bd4 Qa8 Bb2 Rh6 Bd4 Beg6 Ke6 Qb7 Rg4 Qh1 Rg2 Be4+
B2Qn2q/1bBQ1Rr1/B2rpnp1/rP1Q2p1/1N4Pb/Q3P1p1/3P1N2/4K1k1 b - - 0 2 illegal: Other
1r2kr2/Q1n5/PN1q3N/1ppB4/QPQPN2b/5RP1/pKnN1pb1/1R2b3 b - - 0 1 illegal: No proof kernel
1kq4b/QP1p1r2/B1R2Qb1/np6/PP1N2r1/p1n3R1/pN1P1N2/2KNQ1n1 b - - 1 2 illegal: Other
1Q3rb1/2r1BQPR/1pB1P3/2p2Kbp/1nN2B2/1NrBp1QP/3Pq2k/7n b - - 0 1 illegal: No possible last move, all moves rejected
4qB1Q/P1P2pnp/7Q/1QB2Bn1/QN3k1P/2P3bR/pRK1prbb/5r2 b - - 0 1 illegal: No proof kernel
N1Q3n1/P1qr2rp/6Q1/1P1kNQ2/b1p3Q1/bp3PK1/4RpnP/1NB1bB2 b - - 0 1 illegal: No proof kernel
k6Q/N4pp1/2b1Pb1Q/2QrP3/N2P2N1/Nn1qrpn1/1KRp1Pq1/2R2B2 b - - 0 1 illegal: No proof kernel
1n4Qr/1rkb1ppR/2pR1BP1/3Q1P1K/P2nP3/1R1qBNR1/2p3b1/1B2q3 b - - 1 2 illegal: No proof kernel
1rbQ4/4k2K/BpnpB3/N1B1b1q1/4Np1P/6Rp/1qnPnPP1/3N2NQ b - - 0 1 illegal: No proof kernel
2R1Nq1k/1Ppp2p1/2n2Qn1/r1b2KP1/R4R2/P1q1bQQR/3P2Np/1B5b b - - 0 1 illegal: No proof kernel
2R5/p2B4/2rknpbp/b4npP/KNQ3P1/5Pb1/b2PqB1B/1B1NQQ2 b - - 1 3 legal: proof: c4 e5 a4 d5 cxd5 b5 axb5 Na6 b6 Ne7 b7 Nb8 bxa8Q Ng8 g4 e4 b4 Nh6 Ra3 Bb7 Rg3 Ba6 f3 e3 Rg2 Bb7 Rf2 Bc8 Qb3 exf2+ Kd1 Ng8 Kc2 Be6 Kb2 Nf6 Qd1 Ng8 Kc2 Bc8 Kb3 Kd7 e4 g5 h4 c5 d6 h6 b5 f6 h5 c4+ Ka4 c3 e5 c2 b6 Rh7 b7 Re7 e6+ Kc6 d7 Re8 e7 Na6 b8B+ Kc5 Bd3 f1B Na3 Bb7 Nh3 Nc7 Qe1 Kd6 Nf2 Be4 Nd1 Bg6 Bb2 c1B Bd4 Bb2 Nc2 Bc3 Qae4 Ba5 Nb4 Be2 Bb1 Bc4 Qf1 Ba2 Bf2 Qc8 Qee1 Qa6 Rg1 Rc8 e8B Qe2 Rh1 Ne7 d8Q+ Ke5 Rg1 Nf5 Bd7 Bd6 Qg8 Ne6 Qf7 Rc6 Qg8 Nc7 Qc4 Ne6 Rh1 Bdc7 Rg1 Kd6 Rh1 Ke7 Rg1 Bg3 Bc7 Bh4 Bh2 Bg3 Qe4 Rc2 Ne3 Rc1 Qh3 Bh4 Qd1 Rc3 Qb3 Bg3 Rc1 Rc2 Nd1 Kd6 Qf1 Qa6 Qee1 Rc8 Rc5 Qe2 Qc4 Rc7 Rb5 Rc5 Rb8 Rc6 Rc8
b7/1PNbppqQ/1K2RQp1/n2BPP2/P2p4/1nN1pN2/1kR3N1/1r2b1Q1 b - - 0 1 illegal: Other
4QN2/pb3p1Q/2p1pP1n/2q1P3/3pnbQR/3Pp2B/r2P2KR/Qk3N1R b - - 1 3 illegal: Other
1rQr4/1Q3Q1P/2b1n2n/2B1p1rN/1B1bN2K/bp3Rp1/qPB1P1P1/k4Bn1 b - - 0 1 illegal: No proof kernel
2Rn2qq/2B1rQB1/p4q1p/P5pP/n6k/1p1b1NR1/rPP2b2/RKR2Q1B b - - 0 1 legal: proof: g4 f5 gxf5 e5 d4 Nf6 Nc3 Ng8 Nb5 c5 dxc5 Nc6 Nd4 exd4 Bf4 Nb8 Bg5 Nc6 Bc1 Nb8 Kd2 Ke7 e4 Kf6 a4 Kg5 e5 d5 c6 b5 h3 d3 e6 d4 f3 h6 e7 b4 e8Q b3 f6 Bf5 c7 Ne7 c8R Nd5 f7 Nc3 Bg2 Nc6 Qd7 Bc5 f8B Rh7 h4+ Kh5 Rh3 g5 Bh1 Bg6 Qd5 Re7 Rg3 Qb6 Qe1 Nd8 f4 Qe6 f5 Qg8 f6 Bb6 Rf3 Kg4 h5 Bc5 Qd1 Kh4 f7 Qh8 Bg7 Be4 Ke1 d2+ Kf2 Bg6 f8R d3+ Kf1 Bh7 Rg3 Bf5 Qe1 d1Q Bf4 d2 Bc7 Qf3+ Qf2 Bh7 Rf5 Bd4 Re5 d1Q+ Re1 Qf7 Qg2 Qfe8 Qf7 Qf3+ Qf2 Be3 Reb1 Qf6 Ke1 Bg6 Qf1 Bf2+ Kd2 Bd3 Rd1 Qeg8 Kc1 Rb8 Re1 a6 a5 Rb4 Rd1 Ra4 Re1 Ra2 Rd1 Ne4 Kb1 Nc5 Rc1 Na4 Nf3+
Q5BR/1bn4Q/3pppPr/p1Bq1N2/B1Q2P1r/PKn5/3P4/q1NQbk1n b - - 0 1 illegal: No proof kernel
1q1rR3/4Q3/pRNr2n1/P1Kb1N1k/1np1Rpp1/2nN2P1/3P1PQb/N4n1B b - - 0 1 illegal: No extended proof kernel
4rNN1/bpq3p1/PR3q2/kP1N1Q2/2BR4/NN3qrP/1K3P2/4rN2 b - - 0 1 legal: proof: e4 a5 b4 d5 g4 c5 a4 h5 gxh5 f5 exf5 c4 d4 c3 b5 Qb6 Ba3 Nd7 Bd6 Ne5 dxe5 Qd8 Bc5 Nh6 Bb4 Nf7 Ke2 Nd6 exd6 d4 Ke1 d3 cxd3 axb4 Bg2 Be6 Bf1 Bc4 dxc4 Rb8 Qe2 Rc8 Qd1 Ra8 h6 Kd7 c5 e5 h3 c2 Kd2 c1R c6+ Kc8 d7+ Kc7 h7 Kb6 f6 e4 a5+ Kc5 c7 b3 c8N Kb4 f7 b2 Qf3 Ra6 Na3 b1Q Qf5 Qh4 d8N Rg6 Ne2 Rg2 Nc6+ Ka4 N8e7 Qf6 Ng8 Re1 Ng3 Qe5 Nd4 e3+ Kc3 Qee4 Bc4 e2 Nb3 Qe7 Nf1 Qd3+ Kb2 Qc7 a6 Bc5 f8N Qe4 Rd1 Rg3 Rd6 Ba7 Rb6 Qf3 Rg1 Rc1 Rg2 e1Q Rg1 Qee7 Rg2 Rg5 Rg4 Re1 Rd4 Qf6 Nd7 Qfd6 Ndf6 Rg3 Nd5 Qh6 Nge7 Rb8 h8N Qf6 Ng8 Ra8 Ng6 Rae8 Nc5+ Ka5 Nf8 Rb8 Bd3 Rd8 Bc4 Rde8 Nb3+
8/3nNn1B/NB1PPq1P/r3PnR1/3b1Nr1/2r2r2/B1NK1brR/N5k1 b - - 0 1 legal: proof: c4 b5 g4 h5 d4 e5 dxe5 g5 f4 d5 a4 d4 axb5 Be6 Qd3 Bd5 cxd5 Na6 Qf5 Bd6 fxg5 Bc5 g6 Nb8 g5 Bf8 Qg4 hxg4 h4 Ke7 b4 c5 e4 a5 g7 f5 h5 g3 b6 a4 b7 d3 e6 Kd6 g6 Ke5 b5 Kd4 e5 d2+ Kd1 Ke3 b6 Kf2 Ra3 f4 Bh3 c4 Rb3 g2 Rg3 c3 Na3 f3 Bf5 Ra5 Rg5 Nd7 b8N Nh6 g8N Nf7 g7 Bc5 b7 Qf6 Ne2 g1R+ Kc2 d1N d6 Rg3 Ne7 Rg4 g8B Ne3+ Kd3 c2 Nf4 Rg2 Rh2 Kg1 Nbc6 f2 b8N f1R Na6 Rf3 Nd4 Rh6 Bb2 c1R Nb3 Rh7 Bd4 Rc3+ Ke4 Rh6 Na1 Bb6 Bgh7 Bc5 Rg7 Rhg6 h6 R6g4 Rg5 Bb6 Bc5 Ba7 Kd4 Bb6 Bb1 Nf5+ Ke4+ Nd4 Bb4 Nf5 N3c2 Bf2 Bc5 a3 Bb6 a2 Be3 Rc7 Kd3 Rc3+ Kd2 Rc6 Nb3 a1B Bb6 Bad4 Nba1 Rcc3 Ba2
1k4n1/2q5/4bRnq/1pPRPRRn/3KPbP1/1Br3b1/4Nr2/B2RBN2 b - - 0 1 legal: proof: f4 e5 fxe5 a5 b4 g5 bxa5 c5 d4 h5 dxc5 g4 Bh6 g3 Bg7 h4 Qd4 Qe7 Qg4 Qd8 Qxg3 Nc6 Qh3 Nb8 g4 Rh6 Qc3 Rh8 Qg3 hxg3 e4 b5 c6 d5 Kd2 f5 Ke3 g2 c4 Ba3 h4 Ba6 c7 Kd7 c8R Qe7 c5 Bc1+ Nd2 Qf6 a4 Ne7 h5 Ra7 h6 Rd8 h7 Rf8 h8B Ng8 Bh6 Nc6 Rd8+ Kc7 Rh5 Bc8 a6 Nce7 a5 Kb8 Bc4 d4+ Kd3 f4 Ne2 f3 Be3 Qb6 Bf6 g1B Bh4 f2 Rd5 Qc7 Rb1 f1N Be1 Ng3 Nf1 Rf4 Rf5 Rf2 B3d2 Ra8 Bc3 Bh2 Ba1 Nh5 Ba2 Bg3 a7+ Kb7 Kc2 d3+ Kc3 d2 Kd4 Qc6 Bc4 Qh6 a6+ Kc7 Rg5 Ng6 Ba2 Bd7 Bc4 Raf8 a8R R8f3 Rf8 Rb3 Rff5 Kb8 Rd6 Rbf3 Rdf6 Be6 Bb3 Rf4 Kd3 d1Q+ Kc3 Qd6 a7+ Kc7 a8R R4f3+ Ne3 Kb7 Rd8 Qc7 Rd5 Kb8 Kd4 Bd2 Nf1 Rc3 Rc1 Bdf4 Rd1
6nN/3R3N/BP1brrn1/4P2P/K1n2N1n/PN5R/p2b1BR1/1kqnN3 b - - 0 1 illegal: No proof kernel
2KBRk2/3P4/1P2Br1R/1RPp2r1/1RRr1nP1/nrN2N1b/Br5b/7q b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 d4 c6 d5 Bg7 d6 Bf8 Qd5 cxd5 Nf3 Bb7 Ne5 Ba6 Nxd7 Bc8 Kd2 e5 Ke3 a5 c4 h5 b4 h4 g4 e4 Kd4 e3 Ke5 h3 Ke6 h2 f4 e2 g6 a4 f6 a3 c5 a2 g7 Ra7 f5 Rb7 b6 Na6 b5 Ra7 b7 Rh4 b8R Rb7 Bg5 Rh5 Nc3 Ne7 g8B Ng6 Rb1 a1R Rb4 e1R+ Be2 Reb1 Bc4 Qc7 Ba2 Rb3 Bh4 Rg5 f7+ Kd8 f6 Rd1 Re1 h1R Ree4 Rh2 Rec4 Rb6 Rb7 Rc6 b6 Be7 Rb5 Nb4 Ra7 Bb7 Ne5 Rd4 Nf3 Nc2 Raa4 Ba6 Rab4 Rh5 Bg5 Na3 Bh4 Rhb2 Bg5 Kc8 f8R+ Qd8 Bh4 Rg5 f7 Bf6 Re8 Be5 f8R Bh2 Rf6 Nf4+ Kf7 Kd7 Rh6 Qb8 Re7+ Kd8 d7 Qe5 Bh7 Qe1 Bf5 Qh1 Kf8 Rcg6 Kf7 Rg7+ Kf6 Rf7+ Ke5 Rf8 Kd6 Rf7 Be6 Rf6 Reh7 Rg7 Kc6 Ke7 Kc7 Kf8 Kb8 Rf5 Bd8 Rgg5 Re7 Rf6 Ra5 Bb5 Kc8 Re2 Rba4 Reb2 Rcb4 Be2 Rab5 Bf1 Rc4 Bg2 Rab4 Bh3 Re8+
5Nnn/P1qNBN1K/2Q1R1P1/3q1N1R/1n1p1n2/kbN3rN/3P3P/3nr3 b - - 0 1 legal: proof: e4 a5 c4 d5 f4 b5 cxb5 g5 fxg5 a4 e5 a3 bxa3 Bg7 a4 Bh6 a5 Bf8 g4 h5 g6 Bh6 Be2 Be3 g5 Bc5 Bg4 Bd6 exd6 hxg4 Ke2 Kd7 Kd3 e5 a4 c5 b6 Kc6 b7 f5 g7 e4+ Ke3 d4+ Kf4 e3 a6 e2 a7 e1N a5 Kb5 g6 Kb4 a6 g3 d7 c4 Ra3 g2 Rg3 c3 Qg4 c2 Qh3 Nf3 Rg5 Nc6 b8N Nfe5 Qf3 Nf7 Nc3 Rh3 Rh5 Rg3 Nh3 Nh8 Re1 g1N Ba3+ Kb3 Bf8 c1Q Re6 Nb4 Qc6 Ka3 Be7 Ne2+ Ke5 f4 Kf5 Qe8 d8N f3 Nf7 f2 Nd7 f1N Nf8 Qd7 Ke5 Rb8 a8N Ne3 a7 Nd1 Nb6 Nf4 Kf5 Qd8 Nbd7 Ba6 Ke5 Bc4 Kf5 Bb3 Ke5 Nh6 Kf6 Rb5 g8N Re5 Kg7 Re1 Kh7 Qc2 Ngf6 Ng8 Ng4 Qf5 Ne3 Qd5 Nf5 Q8a5 Qc4 Qc7 Qc6
1qr1B3/2n5/4q1r1/P1P1qP1p/Nb2RBn1/2BBB1P1/RB1KQr1k/1r6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 b5 hxg5 Na6 c4 Bh6 cxb5 Bf8 b6 Nb8 d3 c5 Na3 c4 Nc2 c3 b5 Bb7 Nb4 axb4 Qc2 Bd5 Qd1 Bc4 dxc4 Ra4 Qb3 Ra7 Qd1 Ra8 a4 Kf7 f4 h5 b7 e5 a5 d5 g3 d4 b6 c2 g6+ Kf6 g7 d3 Rh2 e4 Ra4 b3 Rh1 b2 Be3 c1Q Rh4 b1R Ne2 Rh6 Ra2 Rg6 Nc3 Bb4 c5 Nh6 g8B Qb2 Bf7 Ng4 Be8 Na6 b8B Nc7 b7 d2+ Ke2 Qd7 Na4 Qe6 Qc2 d1R Qd2 Kg7 f6+ Kh6 f7 Qbe5 f5+ Qf4 f8B+ Kg5 Bd4 e3 Bb2 Re1+ Kd3 Re2 Bfg7 Rf2 Bgc3 e2 Qd1 e1Q Qe2 Nb5 Bbe5 Rc8 b8B Nc7 Bed4 Qfd6 Qf3 Q1e5 Qe2 Qb6 Kd2 Na8 Bd6 Nc7 Bg2 Qb8 Be4 Nh2 Rf4 Ng4 Be3 Nh2 Rf3+ Kg4 Rf4+ Kh3 Bd3 Ng4 Rc4 Kh2 Re4 Qg7 Bdf4 Qgf6 Bc4 Qfe5 Bd3
1B3Q1B/rkP5/b2rnRq1/PR2BB2/1P1qPp1n/4p3/K1Bn2N1/1B4q1 b - - 0 1 illegal: No proof kernel
n2K4/N2N1N2/k1p4P/1Qb3B1/nb3N2/1N1PP1b1/R4PpR/rqnb3N b - - 0 1 legal: proof: g4 a5 a4 h5 gxh5 f5 e3 d5 Bd3 b5 axb5 f4 Be2 e5 d3 f3 Kd2 fxe2 Kc3 e4 dxe4 d4+ Kb3 d3 e5 d2 Kc3 Ra6 Kb3 Rd6 Kc3 Rd3+ cxd3 Nc6 Kc2 Nb8 Kb3 Kd7 Kc4 e1B Kd5 g5 b4 a4 h4 g4 h6 a3 h7 g3 b6 g2 b5 a2 b7 Qg5 h5 Be7 h6 Bf8 b6 Bg7 Ba3 Qe7 e6+ Kd8 Rh2 Nd7 Kc6 Qb4 b8N Ngf6 b7 Nb6 Nd7 Na4 b8N Ne8 Qb3 d1N Nh3 Be5 Nf4 Ndc3 Nd2 Ne2 Bb2 Rf8 h8N Nc1 Bd4 Bd6 Bf6+ Be7 Qb1 Qb2 Nb3 Bb4 Bg5 Bb7+ Kb5 Kc8 Nc6 Bec5 e7 Qc2 Qb2 Qb1 Nf7 Ba8 Na7+ Kb7 Nf6 Rg8 N6h5 Rg6 Ng3 Ra6 Nh1 Ra5+ Kc4 Ka6 Qe5 Bc6 Qh8 Bb5+ Kd5 c6+ Ke6 Nc7+ Kd7 Na8 e8N Bc4 Nf6 Be6+ Ke8 Bg4 Kd8 Bd1 Qe8 Qb2 Rb1 a1B Nd7 Qc2 Qh8 Be5 Ra1 Qb1 Ra2 Bed6 Nd5 Bg3 Nf4 N4b6 Qe5 Ra3 Qb8 Na4 Rc2 Ra1 Re2 Bc3 Ra2 B3b4 Qb5+
5B2/K2PP2q/1rB1bb1B/4bb1p/kBp1RNB1/B3P1nQ/P5N1/r5q1 b - - 0 1 illegal: No proof kernel
4q1b1/1nN4P/P1kRP3/2rR1qB1/1Rq1rnB1/bpR2N1R/NP1K3n/5q2 b - - 0 1 illegal: No proof kernel
1N2r3/pR1nrqPK/P5Nb/1N1b1NQ1/1R5B/nqqr2PN/1kqP3N/8 b - - 0 1 legal: proof: f4 c5 e4 h5 b4 g5 bxc5 d5 exd5 h4 fxg5 h3 g3 Nc6 Bg2 hxg2 Kf2 Nb8 Ke2 Qd7 Ke1 Qd8 Kf2 Kd7 Kf3 f5 Kf4 b5 a4 b4 c4 b3 h4 e6 h5 b2 g6 Nh6 g7 Qa5 Kg5 f4 Kg6 f3 d6 Kc6 d7 e5 d8N+ Kd7 c6+ Kd6 c7 Kc5 Nh3 Kb4 c5 g1Q c6 e4 Na3 b1R Bb2 e3 Nc2+ Kb3 Bf6 e2 Nd4+ Kb2 Bh4 f2 Nf3 e1Q Nh2 f1Q Qg4 Qee3 Qg5 Qac3 a5 Ng4 a6 Bd6 h6 Bb7 c8N Nd7 c7 Bf4 h7 Bd5 Ne7 Re1 c8N Re8 h8N Nge5+ Kh7 Nc4 Ra4 Na3 Nd6 Qff3 Ndc6 Rad8 Rc4 Qee4+ Nhg6 Qgf2 Nb5 Qec2 Nf5 R1e7 Ra4 Q3b3 Rg1 Qfc3 Nb8 Qff3 Rb4 Be3 Qh5 Bh6 Qg5 Qf4 Nfd6 Qf7 Nf5 Re3 Re1 Rd3 Re6 Re7 Rb6 Rde8 Rb7
1NN3br/3Pbb1k/1PP2B2/ppn5/2r2N2/K3n3/Pr2NR2/nB2BqRN b - - 0 1 illegal: No proof kernel
2bnr3/Kp4B1/1P2bBn1/3RQ1q1/1Bp5/BBB2PN1/3P2rP/b3Nkrq b - - 0 1 illegal: No proof kernel
4N3/Rr1k1b1R/K3pqn1/b2P4/1P1Pb3/1R1R1N1p/1nr1P3/1r1RbBQR b - - 0 1 illegal: No proof kernel
1BR1r1B1/2B2R2/Qq3P1p/3b3P/1bB1rP2/1B3n2/Bn1N1npP/2Knq1k1 b - - 0 1 illegal: No proof kernel
Q1N3r1/1N2N2P/1r1P2B1/1Pr3pq/N1k1NpPr/K3nqRN/n7/R3b2b b - - 0 1 legal: proof: g4 e5 a4 d5 f4 b5 axb5 h5 c4 h4 cxd5 Be6 b3 Bb4 Ba3 Bf8 fxe5 Nc6 Bc5 Nb8 Bf2 Bc8 Bg3 hxg3 e4 Kd7 d4 g5 Kd2 f5 Kc3 a5 Kb2 c5 h4 c4 e6+ Kd6 e7 a4 e8N+ Kd7 b6 g2 e5 f4 h5 Nf6 e6+ Ke7 b7 c3+ Ka3 c2 h6 c1R b4 Qd7 b5 Qc6 Nd6 Na6 b8N Bb7 Ne4 Rc5 Nbc3 Nb4 Rh3 Na2 Bd3 Ra6 h7 Rb6 Qb3 Rg8 Rg3 Bg7 Nh3 g1Q Qc2 Qh1 Qg2 Qe8 Bb1 Qh5 Bc2 Qd1 Qh1 Qf3 d6+ Kd8 d7 Ke7 d8N Nd5 Bd3 Ne3 d5 Bc6 Nb7 Be5 Nd1 Bc3 Nb2 Be1 Bc2 Ke8 e7 Kf7 e8N Ke7 d6+ Ke6 Ng7+ Kd5 Qg2 Kd4 Nf5+ Kd5 Ne7+ Kd4 Nd1 Kc4 Nc8 Bd5 Ndc3 Bc6 Kb2 Bd5 Nc6 a3+ Kb1 Nb4 Kc1 a2 N6e7 Bc6 Kb2 Bd5 Rd1 a1R Na4 Na2 Ka3 Rb1 Qh1 Rb2 Ra1 Bc6 Bb1 Rh2 Ng1 Rh4 Nh3 Bf2 Qe1 Bd5 Qa5 Be1 Qa8 Qe2 Nec3 Bh1 Bg6 Qf3 Ne4
n4q1q/5N1B/1Pp2N1N/1bR2R2/nb1Pb1NK/rPPk1NR1/b3r2p/6B1 b - - 0 1 illegal: No proof kernel
KB1R1Nr1/P1p5/Rp2r1bP/n3n1k1/5N2/1N1rnR2/bPPbB1N1/1N3r2 b - - 0 1 illegal: No proof kernel
4b1K1/rp1P1NBB/p1B2B2/2q3nR/RRb4n/Pn2PprB/1P4k1/5N1b b - - 1 2 legal: proof: f4 g5 c4 e5 fxe5 d5 cxd5 Kd7 Qa4+ Ke7 g4 Be6 h4 Bh6 Qf4 gxf4 g5 Ke8 g6 Bg5 hxg5 Bc8 Kf2 Ke7 Kf3 h5 Ke4 c5 d4 c4 d6+ Ke6 e3 c3 d7 h4 g7 f3 g6 f2 Nf3 h3 Nbd2 h2 Bh3+ f5+ Kf4 Kd5 e6 f1B e7 c2 Kg5 a6 Ne5 f4 Nf7 Bd3 Nf1 Ke4 d5 Kf3 d6 Nc6 Bd2 c1N Bc3 Nh6 Kf6 Qf8 d8B Nf5 g8B Bc4 e8B Nh4 g7 Nb3 Bh7 Ne5 g8R Ra7 Rg4 Rg8 Bc6+ Kf2 Bd4 f3 Re4 B8e6 d7 Rg3 Rg4 Qa3 Kg7 Qc5 Bf6 Bf5 Kg8 Bg6 Rg1 h1B Bg7 Nd3 Bdf6 Nf4 a3 Ne6 Re1 Bcd3 Ra4 Ng5 Rd1 Be2 Rdd4 Bh5 Rdb4 Bc4 Nd2 Bg6 Rd1 Bh5 Nf1 Kg1 Rd5 Kf2 Nh6 Be8 Nf7 Kg1 Bg4 Kg2 Re5 Nh3 Rh5 Ng5 Bh3+
2n1N1Bn/P1pr2p1/2P1Bb2/Pb2P1Bq/1RB2R2/Bb5N/1p4K1/1krR2b1 b - - 0 1 illegal: No proof kernel
4q2r/Q1Rp3B/5K2/R1r1BR1p/nRp1Rn1P/1P3b2/Pr1P2R1/2n1Nk1r b - - 0 1 legal: proof: c4 b5 e4 a5 f4 f5 exf5 a4 g4 e6 g5 Be7 Nc3 Bf6 gxf6 a3 Na4 Ra5 cxb5 Ra7 b3 Ra8 Nb2 axb2 Ke2 Kf7 Kf3 b1R Ke4 h5 Ke5 g5 h4 c5 b6 c4 b7 g4 Rh3 g3 Bb2 g2 Re3 Ne7 Nf3 g1N Re4 Ne2 Ne1 Nc1 Bd3 Na6 b8R Nc5 Rb4 Nd5 Qe2 Qe8 Qe3 Na4 Qa7 Bb7 Bc3 Kf8 f7 Kg7 f8R Rc8 f6+ Kg6 f7 Rb2 Bc2 Rc5 f5+ Kh6 Rb1 Nf4+ Kf6 e5 Rg8 Bd5 f8R Ba8 Rg2 Bd5 Rd4 Bf3 Rd5 e4 Be5 e3 Ra1 e2 Be4 Qa8 Rc8 Qb8 Rc7 Qe8 Rd6 Kh7 Ra6 Kh6 Ra5 Kh7 Nc2 e1R Bd3 Rh1 Rb1 Nce2 Re1 Nc1 Re4 Kh6 Ne1 Kh7 Bc2 Kh6 Bd6 Kh7 Kg5 Kg7 Be5+ Kf7 f6 Ke6 f7 Kd5 f8R Qe6 Bd6 Qe8 Re3 Kd4+ Kf6 Be2 Re5 Bd1 Bh7 Bf3 Rf5 Ke4 Rfg8 Kd4 Be5+ Ke4 Nc2 Kd3 R2g4 Ke2 Ne1 Kf1 R8g6 Ng2 Re4 Nf4 Rg2
1RB2rn1/1K1B4/3p1q2/P1brpb2/RNB2p2/P3P2b/P1pN1B2/B2n1R1k b - - 0 1 illegal: No proof kernel
bnBNq1N1/2rp4/r2P3K/1Rpp1Rp1/3P3b/1Bp1B1Pr/2P1N3/5kNN b - - 0 5 illegal: Other
b1B3kn/2P3r1/nR6/4qN2/N2bpRPR/1P2b3/B1P2q1B/2rN2NK b - - 0 1 legal: proof: h4 c5 a4 f5 d4 d5 dxc5 g5 hxg5 b5 axb5 f4 e3 Nf6 exf4 Qd7 Qe2 Qd6 Qe4 dxe4 Ra4 Ng8 Rb4 Bh3 Rxh3 Qd7 Rh1 Qd8 g4 Kf7 f5 h5 f4 a5 Kf2 e5 Kg2 a4 b6 e3 g6+ Kg7 c6 a3 b7 a2 f6+ Kh6 f7 Kg7 c7 a1Q f5 h4 Nc3 e2 Nd1 e1B Rb6 Bc3 Bf4 Qc8 Bh2 Rh7 Ba6 Bc5 f8R Be3 f6+ Kh8 f7 Qf5 Bf4 Bcd4 Bh2 Nd7 b8N Rg7 Bc8 Nc5 Nd7 Na6 Nc5 h3+ Kg3 Qa5 Na4 Qd2 Re8 Qg5 f8N Nh6 Rd8 Nf7 Ne6+ Rg8 Rd5 Rg7 Rc5 Qe7 Rc4 Kg8 Rcb4 Nh8 Kf3 Bc3 Nd4 Qd6 Nf5 Bcd4 Rc4 Rb8 Rbc6 Rb3 Rb6 Ra3 Rcb4 Ra1 Rc4 Rc1 Kg3 Bc3 Rf4 Bcd4 Kf3 Rd7 g7 Qe1 Bg3 h2 Kg2 Qf2+ Kh3 Kf7 g8B+ Kf8 Ba2 Rg7 b3 Kg8 Bb1 Qe7 Ba2 Qe1 Kg2 Qe6 Ne2 Qe8 Rg1 h1B+ Kh2 Bg2 Rh1 Ba8 Ng1 e4 Kg2 Qe7 Rh4 Qe5 Bh2 Qf2+ Kh1
B2R2q1/K7/nnP3P1/B1BN2Nb/2PP1RN1/B2q1rrp/2r4b/1k3r1R b - - 0 1 legal: proof: b4 b5 e4 c5 c4 g5 h4 d5 hxg5 f5 exf5 d4 Qf3 Qd7 bxc5 b4 Qc3 b3 axb3 dxc3 b4 Qd4 b5 Qd8 Ke2 Kd7 Kd3 e5 g4 a5 f4 h5 f6 e4+ Kd4 e3 f7 c2 b6 a4 f5 e2 b7 e1R g6 a3 g5 h4 f6 h3 g7 a2 g6 Ra3 Bg2 Rg3 Nc3 Ke6+ Nd5 Kf5 Ba3 c1R Nf3 Na6 b8R Bd6 f8B Rc2 f7 Rf1 Ng5 Nf6 g8N Nd7 Ngf6 Nb6 Ng4 Bf4 Be7 Qg8 f8B Be6 Rb1 a1Q+ Rb2 Bd6 Bd8 Qb1 Bc7 Rh4 Rd8 Rgf3 Rb3 Bh2 Re3 Rg3 Re4 Rh7 d3 Rf7 Be7 Nc8 Ba5 Nb6 Bf8 Rcf2 Nc7 Nc8 Ne5 Bd5 Rg4 Bf3 Bd6 Bd1 Ba8 Be2 Re4 Bh5 Ng4 Qd1 Kd5 Qb1 Kc6 Nb6 Kb7 Qc2 Re5+ Kf4 d4 Qd3 c6 Rc2 Ka7 Rf8 Nge6+ Kf3 Rc5 Ke2 Rf5 Kd1 Ng5 Rf6 Nd5 Rf8 B3b4 Kc1 Ba3+ Kb1 Bdc5 Rf6 Rf4 Rf5 Re4 Rff3 Rf4
r2NrBn1/6K1/1Pb2BP1/n3p1qP/k2N4/2n1B3/3PR1Rq/1N1n1RnB b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 g4 h5 e3 Be6 g6 Bg7 g5 Bc8 Qg4 Bd4 exd4 hxg4 Ke2 Kd7 Kd3 a5 Ke4 c5 Kf5 e5 b4 c4 h4 a4 b6 a3 b7 c3 g7 a2 b5 f6 Kg6 g3 d6 f5 h5 f4 d5 f3 Bg2 c2 Rh2 f2 Ba3 f1N Bh1 c1N Nf3 g2 Nd4 g1N Re2 Nc6 b8B Na5 Ba7 Bb7 B7c5 Ne3 b6 Nd1 Bab4 Nh6 g8R Bc6 Rg7+ Qe7 Ba3 Rhe8 Rg8 Qe6+ Kg7 Qh3 Bab4 Qh2 Ba3 Kc8 d7+ Kb7 d8B Ka6 d6 Bb7 g6 Bc6 Rf8 Ng8 Rg2 Nce2 d7 Nec3 Rf1 Bd5 Bf6 Bc6 Nf5 Kb5 d8N Ka4 Be3 Bf3 Bf8 Bb7 Na3 Bc6 Rb1 a1Q Nd4 Qf4 Rc1 Qh2 Nb1 Qa3 Rff2 Qd6 Re2 Qe6 Kh7 Qf5 Kh8 Qg5 Kg7 Nb2 Rce1 Nbd1 Rf1
2R1k1B1/3r1n1b/3pPpNP/q1B4B/Nr6/1P1bnK1R/1b1rP3/1R1N3B b - - 0 1 legal: proof: d4 a5 g4 e5 a4 b5 f4 h5 fxe5 c5 gxh5 Bb7 dxc5 Bc8 axb5 a4 b3 a3 Qd4 Nh6 Qc3 Ng8 Qb2 axb2 Kf2 g5 c4 g4 h4 g3+ Kf3 f6 h6 d6 h7 g2 b6 Be7 h5 Nh6 c6 Nd7 b7 Ra4 b8R Bf8 c5 Ke7 c7 Ra6 c6 Ra5 Nc3 b1B Nh3 g1R Be3 Ba2 Bg2 Nb6 Rb1 Rb5 Na4 Bf5 c8B Nc4 c7 Rd1 Nf2 Ke8 Bc5 Bd3 Bg4 Rd2 c8B Rb4 Rh3 Nf7 Bce6 Bh6 Nd1 Ne3 Rc8 Rg8 h8N Rg7 Ng6 Bg5 Ra1 Bab1 h6 Rh7 Bh1 Bbc2 Rc6 Qa5 Bh5 Bf4 Rb1 Bg3 Bf5 Bh2 e6 Be5 Nh8 Rg7 Bh7 Bb2 Bg8 Bh7 Ng6 Bd3 Bd4 Nh8 Bc5 Rd7 Rc7 Nf7 Rc8+
6NB/k2NP3/7q/2p1r3/BR3b1n/K2nBRr1/B1PPRp1P/rb1q3N b - - 0 1 legal: proof: e4 d5 exd5 b5 f4 h5 Qxh5 g5 a4 e6 axb5 Rh6 Bd3 Rh8 Bh7 e5 fxe5 Ba6 Qh4 Bc8 Qf4 gxf4 Kd1 Kd7 g4 c5 b4 Kc7 e6 Kb7 b6 a5 d6 f5 b5 a4 d7 f3 g5 f2 g6 a3 g7 f4 Bb2 a2 Kc1 f3 Bf5 Qe8 d8B Ra4 Nh3 Ra7 Re1 f1Q Nc3 Rh6 Nd5 Na6 Bg5 Kb8 b7 Ra8 e7 Qh5 Be3 Qg6 Bd7 Ka7 b8R Nb4 Nf2 Rh5 Nf6 Re5 Nh1 Nh6 g8B f2 Bf7 Qe2 Ng8 Nf5 Bc3 Qg7 Kb2 Nh4 Ka3 Qd1 Re2 Nd3 Rb1 a1R+ Ba2 Qg6 Rb3 Qh6 Be8 Be6 b6+ Ka6 b7 Ka7 Rb4 Bg7 Rd8 Bf6 b8N Bg5 Rd6 Bf4 Ba4 Bd5 Nd7 Re8 Ngf6 Rg8 Re6 Rg4 Ng8 Rg3 Rf6 Rh5 Rb1 Bc7 Rf3 Bf4 Bh8 Re5 Rb8 Rb1 Bc4 Bf7 Bcb5 Ba2 Bc4 Ra1 Rb4 Bb1+ Ba2
3n1q1B/N2bk1qr/K1BNn2N/B1P1RP2/1q4Rb/B4nR1/P1pp1P2/8 b - - 0 1 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 b5 c4 Bb7 cxb5 Ba6 b6 Bc8 d4 c5 b4 c4 b5 Ra7 Qa4 Rc7 Qb4 Rc5 dxc5 axb4 Ke2 d5 h4 g5 h6 e5 h7 e4 b7 g4 h5 c3 b6 e3 Kd3 e2 h6 e1Q Rh3 b3 Nf3 c2 Bg2 d4 Kc4 g3 Kb5 b2 Nfd2 d3 Nc4 d2 Nd6+ Kd7 Na3 Qee8 Bc6+ Ke7 Ka5 b1Q Nab5 g2 Rg3 g1N Ba3 Qb3 Na7 Nf3 Rag1 Nd7 b8B Qg6 Bc7 Qg7 b7 Qb4+ Ka6 Ngf6 Rd1 Nde5 Rdg1 Ne8 Ba5 Bd7 b8R Nf7 Rb6 Qa8 Rg4 Nd8 R1g3 Qe5 Rb8 Ng7 Rb6 Nge6 Rb7 Rg8 h8N Rg7 Nhf7 Rh7 Rb6 Bg7 Rb8 Bf6 Rc8 Rg7 h7 Bh4 h8B Rh7 Nh6 Qg7 Rb8 Nb7 Rg8 Qaf8 Re4 Nd8 Re5 Qgf7 R8g6 Q7g7 R6g4
3Rn1r1/pp5b/r1pRPbq1/1P1P2BB/R2N2N1/1q1n4/Bk2N1BP/5K2 b - - 0 1 illegal: manual, white must promote 2 of abc pawns on c8 but before d7xc6 Bc8 is stuck allowing only 1 white promotable pawn beyond c6
7N/b1Bb1P1p/p2P2N1/p5kB/q1rPKRP1/2R1R3/2N1n2B/1r1r1Bq1 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 g4 a4 g3 hxg3 Qd7 g4 Qd6 g5 Qd8 b4 Bh6 a5 Nd7 b5 Nb6 axb6 Bg7 Qa4 Bf8 Qa6 bxa6 Ke2 Kf7 Kf3 c5 d4 e5 g4 c4 d6 c3 b7 c2 b8B a5 g6+ Kf6 b6 a6 b7 Bh6 g7 Qb6 Bc7 Bf4 b8R Kg5 f6 Ne7 g8B Qb5 f7 Qb3+ Ke4 Qb2 f8N Qb3 Na3 Qa4 Ng6 Nf5 Rb3 Rb8 Rhh3 Bd7 Rbc3 Bd2 Bf7 Rhc8 Rhe3 Rb1 Nh8 Be1 Bd2 c1R Nc2 Rd1 f3 Bh4 Bh5 Be1 Ne2 Ng3+ Kd5 e4 Nf4 Ne2 Nfg6 Rcb8 Bc1 R8b4 Ke5 Rc4 f4+ Kh6 f5 Kg5 f6 Bd2 Rg3 e3 f7 Be1 Ke4 Bd2 Rca3 Bb4 Rc3 Bc5 Raa3 Ba7 Rf3 Ng1 Rf4 e2 Re3 e1Q Rc3 Ne2 Bd2 Qf2 Be1 Qh2 Bg3 Qg1 Bh2
qRK5/4R3/1NB2p2/R2NbP1k/1bPb1nP1/Nb1P2b1/r2rNb2/3BB1n1 b - - 0 1 illegal: No possible last move, all moves rejected
3q1r1r/P4N2/B1rPp3/3n2RR/3NP1rk/3P2R1/1rNn1NrB/1BK2bb1 b - - 0 1 illegal: No possible last move, all moves rejected
Bnr5/2kq2pN/1q1Nr1b1/1Br1Bn2/3p4/KR1N2PP/P2Pq3/BR2b2R b - - 0 2 legal: proof: e4 b5 c4 f5 cxb5 h5 exf5 a5 Qg4 a4 Qg3 a3 bxa3 h4 a4 h3 a5 Nh6 Qf3 Ng8 g3 Rh6 Qe4 Rh8 Qg2 hxg2 Kd1 d5 Kc2 Kd7 Kb2 c5 f4 e5 h3 c4 a6 d4 a7 e4 f6 e3 b6 e2 b7 e1Q f5 Be7 f7 Bg5 f8R c3+ Ka3 c2 f6 Ne7 f7 Rh6 Nc3 Qe2 Rb1 Nf5 Ne4 Re6 Bb2 c1R Nf3 g1Q Ne5+ Kc7 Nd6 Qd7 Ba1 Be3 Nd3 Bf2 Re8 Rc6 f8N Rc5 Nh7 Qg2 Rh8 Qgc6 Rb3 Qb6 Rb1 Na6 Rf8 Be1 b8B+ Kc6 Rf7 Bb7 Bc7 Rc8 a8B Nb8 Re7 Rf6 Re3 Rh6 Bd8 Re6 Bf6 Kc7 Be5 Bd5 Nf4 Bf3 Reb3 Bh5 Nd3 Bg6 Nf2 Qg4 Bb5 Qe2 Nd3
R1R4n/q1Br3p/8/5BPb/pnNB1P1n/P1NrB1bP/1R5N/k2b1Kb1 b - - 1 2 legal: proof: e4 c5 b4 d5 exd5 Qb6 bxc5 Qd8 Qg4 g5 Qe4 f5 Bb2 g4 Bg7 Kd7 Qxg4 Ke8 Qe4 fxe4 f4 Kd7 d4 a5 c4 e5 g4 b5 g5 a4 c6+ Kd6 c7 b4 a3 e3 h3 e4 Bd3 e2 Bh6 b3 Nd2 b2 Ra2 b1B Ndf3 Qe7 Rd2 Bg4 c8R Bh5 Bg7 Qa7 Rb2 Ne7 Nh2 Bc2 Bf6 Bd1 c5+ Kd7 d6 Ke6 c6 Kd5 d7 Na6 d8B Nb4 c7 Ng6 Rb8 Bc5 c8N Rf8 Bde7 Nh8 Nd6 Rd8 Nc4 Rd7 Re8 Bb6 Bc5 Rad8 Kf2 e1N Ne2 e3+ Kf1 Ng2 Bf5 Nh4 Rf8 Kc6 d5+ Kb5 Bcd4 Bc5 Bfe5 Bb6 Bc7 Bc5 d6 Bb6 Ng3 Bc5 Ne4 e2+ Kf2 e1B+ Kf1 Bg3 Be3 Re7 d7 Bd4 Nc3+ Kc5 Bc1 Bg1 Bd2 Kd4 Bc1 Rb8 d8B Rd7 Be7 Rb6 Ra8 Rbd6 Bd2 Be3 Rg1 Bef2 Rg2 Bg1 Re2 Rd5 Re4+ Kd3 Bc5 R5d6 Bd4 Rd5 Rb1 Kc2 Rc1+ Kb3 Re2 R5d6 B2e3 Rd5 Nd2+ Kb2 Rc2+ Ka1 Nc4 R5d6 Rb2 Nd5 Rbb8 Nb4 Rb2 Rd5 Rc8 R5d6 Bg7 Rd3 Bgd4
1b2K1N1/1RB1n2p/3P1bPN/n3N2r/RN4bP/1k2r3/q2P2pB/2Rnn2B b - - 0 1 illegal: No proof kernel
RN1n3B/rPK1p1Rq/1N4P1/bq2Rn2/1b2PB2/1Bb4N/1pb2k1P/3r3B b - - 0 1 illegal: No proof kernel
1b2R3/1P1bk2P/1ppqBnp1/1N1r2B1/1P3RP1/1n3RN1/K1B3b1/2rNbN2 b - - 0 2 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 b6 g4 Nh6 a5 Qf6 a6 Ng8 Qb3 Qc6 Qg3 Qb7 axb7 hxg3 Kd1 a5 Kc2 f5 Kb3 a4+ Ka2 c6 e4 a3 b4 g6 d4 f4 h4 g2 d6 f3 d5 f2 e6 Bh6 e7 Ra7 d7+ Kf7 e8N Bg5 d8R Rh6 e5 Rh8 e6+ Kf8 h5 Bh6 d6 Ra8 e7+ Kf7 d7 Bg7 h6 Nf6 h7 Nh5 Nd6+ Ke6 e8B Be5 Nc4 Na6 Ncd2 Nc5 Bf7+ Ke7 Be6 Bb8 Nc3 Nb3 Nge2 g1B Nd1 Nf6 Ng3 Re8 Rh2 Ra5 Rh3 Rd5 Bd3 f1B Bc2 Bg2 Ndf1 Bf2 Bg5 Be1 Rb1 Rf8 Ra1 Rf7 Rg8 Rf8 d8N Bd7 Nf7 Rd8 Nd6 Rc5 Kb1 a2+ Kb2 Rc3 Nb5 Rc5 Rb1 Rc4 Ka3 Rc3 Rb2 a1Q+ Ra2 Qb1 Rb2 Qc1 Ka2 Qf4 Rf8 Qd6 Rg8 Na1 Rb3 Rc4 Rf3 Nb3 Rf4 Rc3 Nh1 Rc4 Rhf3 Rc5 Nhg3 Rc3 Bcf5 Rc1 Bc2 Be8 Be4 Qe5 Ne2 Rd5 Neg3 Qd6 Bc2 Bd7 Re8+
RBN2N2/P2K4/3pprbN/nBPn4/Brn1R2P/3P1k2/2RBpn1b/3q4 b - - 0 1 illegal: No proof kernel
2N1Nqq1/3bp3/1R1r4/PRp1B3/2pb4/1BkNPRrp/2P3Pp/1BnRK3 b - - 0 1 illegal: Other
kb1b4/qpr4p/1N3PpB/pR5B/n1r5/PR1N2P1/1N4BP/bbR1R1Kn b - - 0 1 legal: proof: e4 f5 b4 d5 exd5 c5 bxc5 Nf6 Qe2 Ng8 Qe4 fxe4 d4 Kd7 f4 Kc7 Kf2 a5 c4 e5 c6 g6 c5 Bg4 d6+ Kc8 c7 Bh3 a3 Bh6 d5 Nf6 f5 Bg7 Ne2 e3+ Kg1 e4 Nd2 Nbd7 Nc4 Nb6 Nb2 Ng4 Nf4 e2 Nfd3 e1B Bh6 e3 Rc1 Bh4 g3 e2 Bg2 Na4 Re1 Be5 Rc1 Be7 f6 Nf2 Re1 Bf5 Rc1 Kd7 c8N Qb6 c6+ Kd8 d7 Kc7 d8R Kb8 d6 e1B d7 B1c3 Re8 Qa7 Nb6+ Bd8 Re6 Bf4 Re5 Rf8 Rb5 Rf7 Nc5 Bb1 Ncd3 Re7 Rb3 Re4 Rb5 Rc4 Re1 Qa6 c7+ Ka7 c8B Bb8 Nd1 Ba1 N1b2 Be7 d8R Rc7 Rdd5 Bd8 Bg4 Rc4 Kf1 Rc7 Rg1 Nh1 Rb3 Rc4 Re2 Bd6 B4f3 Rac8 Rdb5 Bb8 Bh5 R8c7 Rc2 Re4 Rc1 Rec4 Ke2 Rh4 Rge1 Rhc4 Nd7 Ka8 Kf1 Nb6 Kg1 Na4 Re7 Qa7+ Re3 Nb6 Ree1 Na4+ Nb6+
6B1/1P3B1n/b1Kb3B/5NN1/1Nk1Q2n/nR2P1N1/2Ppr2P/rb4B1 b - - 0 1 illegal: No possible last move
2B1N3/2rrNBp1/n4Pn1/1PP1N2K/RB5n/1qq1Q3/bkN2PBn/8 b - - 0 1 legal: proof: b4 b5 e4 f5 exf5 h5 a4 a5 bxa5 c5 d4 c4 g4 e6 gxh5 Bc5 dxc5 Ba6 Ra3 Bc8 Rb3 cxb3 axb5 Kf8 Qf3 Kf7 Qd1 Ke8 Ke2 Ke7 Kf3 Kf6 Kg4 Ke5 h4 d5 c4 b2 h6 d4 a6 d3 h7 Kd4 a7 d2 h5 e5 c6 e4 c7 e3 c5 e2 h6 e1Q Rh4 Qee7 Bg2 Be6 c8B Qd5 Qf3 d1N Bd2 Ne3+ Kh5+ Ng4 Bb4 Na6 Na3 Qb3 f6 b1N Nc2+ Kc4 Qe3 Nd2 Nf3 Qc3 Ba5 Kb3 Ne5 Nf3 Bb4 Ngh2 Rf4 Rb8 a8B Nh4 Bad5+ Kb2 Rd4 Rb7 Re4 Bd7 Bf7 Qe6 Rf4 Ne7 Rg4 Re8 h8N Rf8 h7 Qeb3 Nhg6 Be6 h8N Rd8 Rd4 Rdd7 Rf4 Ng8 Ne7 Rbc7 Bg6 Qe1 Bc3+ Ka2 N7c6 Qb2 Nhf7 Ne7 Ra4+ Kb3 Ba5+ Qec3 Nd6 Qa2 Ne8 Kb2 Bf7 Neg6 Bb4 Qaa3 Bf3 Ba2 Bg2 Qab3 Ne7
5N1B/2Pbb1bb/1PNp2n1/2R3kq/1R1pP1P1/N2RQ3/3RpK2/1N4n1 b - - 0 1 illegal: No possible last move
NRR1N1K1/Rb6/2nn2n1/2brPpnR/Q2P1P2/2k1B1r1/1q2P3/q1N1n2N b - - 0 1 illegal: No proof kernel
nRR2kr1/3PP1r1/B1Rp3B/6r1/BK1p2QP/n2bqn2/Bb1PN3/b2R4 b - - 0 1 illegal: No possible last move
Nq1n4/rP6/1n1BQ2B/b2Np2q/2Nb3R/rPp1P2K/2P1B1n1/2Nqk1B1 b - - 0 2 legal: proof: g4 c5 a4 f5 gxf5 b5 d3 h5 Ra2 c4 axb5 c3 Ra6 Bb7 Ra4 Bd5 Rg4 Bc4 dxc4 hxg4 h4 Kf7 f4 Kf6 Kf2 d5 Kg2 a5 c5 g5 h5 e5 h6 g3 h7 a4 b6 g4 c6 d4 b7 d3 c7 a3 c8N a2 b3 a1Q Rh4 d2 Rh5 Ra7 Rh3 Nh6 Rh4 Nf7 Na3 Nd7 Nc4 Bb4 N8b6 Qb8 Na8 Ba5 Ba3 Rd8 h8N Nb6 Ng6 Rd6 Qc1 d1Q Bc5 Nd8 Ne7 Qa4 Qd2 Qe8 Qd5 Qh5 Qg8 Rd5 Be3 Rb5 Qe8 Rb4 Bd4 Ra4 Nd5+ Kg7 f6+ Kh6 f7 Ra3 f5 Kg5 f6 Kf5 f8B Ke4 Kh1 g2+ Kh2 Qf5 f7 Qh5 Nf3 g1N Ne1 Nh3 Nd3 Nf4 Bh6 Ng2 f8B Na4 N5f4 g3+ Kh3 Nb6 Bf2 Qd6 Nc1 Qb8 Be1 Kd4 Qe6 Ke4 Bd6 Kd4 Nb2 Ke3 Bf2+ Kd2 Bg1 Ke1 Nc4 Ne3 Nd5 g2 Bh2 g1B Nb4 Nf5 Nd5 Bd4 Bg1 Ne3 Qg4 Qg5 Qe6 Ng2 e3 Qgh5 Be2
1nRRKR1q/n7/2B3Pp/P2P2r1/1N2bB2/3RQ1b1/rnk1BqpP/B1r5 b - - 0 1 illegal: No proof kernel
R3R1B1/1PBKR3/pPBb2pb/Pn1r2rb/q4R1P/n1b5/1B1k4/1b2Q2N b - - 0 1 legal: proof: d4 b5 c4 e5 dxe5 f5 cxb5 f4 Nd2 h6 Ne4 f3 Ng5 hxg5 gxf3 g4 f4 Bc5 f5 Bf8 Kd2 Ke7 Kc3 d5 Kd4 g3 Kc5 g6 b4 g2 e4 c6 a4 d4 f4 d3 h4 d2 b6 Qd7 e6 Kf6+ e7 Rh5 b7 Nh6 b5 Rg5 b6 Nf7 Bc4 Ne5 Bg8 Nc4 Qe1 d1B Ne2 Na3 Ng3 Bh5 a5 a6 Rf1 Bg7 e8R g1B+ Rf2 Qd1 Nh1 Qa4 Kd6 c5 Kc7 c4 Bb2+ c3 Rb1 Bh6 e5+ Kg7 e6 Kf6 e7 Bh2 Rd1 Nc6 Rd7 Nd4 Rf3 c2 Rf1 c1B Kd6 Kg7 f6+ Kh8 f7 Kg7 f8R Bd2 Kc7 Bc3 Kd8 Rb8 f5 Bd6 Rf4 Ndb5 f6+ Kh8 f7 Kg7 Rc7 Bf5+ Rc8 Bc2 Kd7 Bb1 Rcc4 Rc8 Rce4 Rcc5 Ra8 Rcd5 Rfe8 Rgf5 f8B+ Kf6 Rg4 Rg5 Re2 Be4 Rf4+ Ke5 Re3 Kd4 Re2 Kd3 Bg7 Rdf5 Be5 Bc5 Bc7 Bd6 Rec8 Rd5 e8B Bf5+ Re6 Be4 Re7 Kc2 Ke6 Kd3 Bc6 Kc2 Kd7 Kd3 Qf1+ Kd2 Rce8 Bb1 Qe1+
2br1N1B/8/1kPQR3/PnN3Pp/1b3n1B/1r2pB2/1bN2q1P/b1qBN2K b - - 0 1 illegal: No possible last move, all moves rejected
NQb3R1/bp2Bq1B/q4pnK/2BP1N2/2nqP2P/2q1NP2/1N1r2B1/6rk b - - 0 1 illegal: No proof kernel
3kn2n/PN1NR2P/4p1Rb/p7/1R1r3q/KB1RPnQb/N3r1qP/2n4N b - - 0 1 illegal: No proof kernel
4QBb1/qRp2P2/B2k1KnP/2Rq1R1B/4prrn/2PnP1N1/1Rn5/B2b4 b - - 1 2 legal: proof: d4 b5 a4 e5 axb5 h5 g4 f6 Nc3 Bd6 Ne4 f5 gxf5 Ke7 Nf6 e4 Ng4 Be5 dxe5 hxg4 Nh3 Kf7 Ng1 Ke8 Kd2 Ke7 Kc3 g5 Kd4 d5 b4 a5 h4 a4 f4 a3 b6 g3 e6 g2 Ke5 g4 c3 d4 e3 a2 b7 d3 f6+ Kf8 b5 g3 f7 Ke7 f8B+ Ke8 f5 d2 e7 Kd7 h5 Rh6 f6 Rh7 b6 Na6 b8R Rf7 h6 Nb4 Qh5 d1B Ne2 g1N b7 g2 Ng3 Nd3+ Kf5 Ra6 Bb2 Nf3 Bg7 g1Q e8B+ Kd6+ Kg6 Qh2 Be2 Bg4 Rf1 Nh4+ Kg5 Bc8 Rf5 Be6 Bb5 Rc6 Ba6 Ne7 Bg4 Rf8 Qe8 Neg6 Bh5 Bg8 Rb1 Qc2 Ba1 Qa4 Rbb5 Qd4 Rb2 Qa7 Ra8 Qd7 b8R Qe6 R8b5 Qd5 Rab8 Rb6 Rc5 Rb5 Rb1 Rb2 Rb7 Rg2 Bb2 a1N f7 Nc2 Kf6 Rf2 Ba1 Rf4 Qb5 Re8 Rb2 Re5 Qe8 Rg4 Rf2 Reg5 Rf5 Rf4 R2b3 Rgg4 R3b5 Qc6 Rb2 Qd5 Bf8+
kN3R1q/Rn3q1B/2K1p1bb/R1P1P2p/P3Qq2/B5rP/b6R/2B1Brb1 b - - 0 1 illegal: No possible last move, all moves rejected
5B2/RP1n4/pB2Q2p/RnRB1r1q/Kn1PBbRP/2r4P/5pN1/1k3b1r b - - 0 1 illegal: No proof kernel
4qN2/2P5/2Rp2Bn/K1NrkRQn/R1Pp1b1q/1bNp1P2/Rr1P2N1/2q5 b - - 0 1 illegal: Other
1K2RN2/pRp1Rb2/2PkQr2/1rNq4/6pR/2q2Pq1/P1Pq1n2/3nNBN1 b - - 0 1 legal: proof: d4 f5 b4 e5 dxe5 h6 g4 Be7 gxf5 Bf8 Bg5 Bc5 bxc5 hxg5 Kd2 Ke7 Ke3 d5 Kd4 b5 e4 g4 h4 g5 h5 b4 e6 g3 e5 g4 f3 g2 h6 b3 h7 b2 Nd2 b1Q Rh4 Qb3 Rb1 Nf6 Ne4 Rf8 h8N Na6 Qe1 Nb4 Nf7 Rb8 c6 Nd3 Nc5 Qa3 Rb7 Nb2 Qe3 Ne4 f6+ Ke8 e7 Nf2 Qe4 Nbd1 Qf5 Qd6 Qe6 Qd7 Na4 Qb2+ Kc5 Qc3+ Kb5 d4 Ka6 d3 Nc5 d2 Nh8 Nh3 Ng6 Nhf2 Nf4 Qd5 Nfd3 Bd7 Ne1 Bc8 Qg8 Bf5 Qe6 Bg6 Rb4 Bf7 Rb2 Rd8 Kb7 Rd6 Kc8 Rh8 Kb8 Rh5 Nh3 g1Q Rb7 Qg3 Ng1 Bg8 Qf5 Kf7 e8R Re6 Re7+ Kf8 f7 Rf6 e6 Rg5 Rd7 Rh5 Rd6 Ke7 f8N Bf7 Rd8 Rg5 Re8+ Kd6 e7 Nb2 Rc8 d1Q e8R Q1d2 Re7 Nbd1 Qe4 Qdc4 Rce8 Q4d4 Ncd3 Rb5 Nc5 Qd5 Qe6+
5Bq1/1ppn1Np1/2P2R1B/1n1n4/pPN3KQ/Nrbnr3/PN1k1BP1/b2B4 b - - 2 4 illegal: No proof kernel
1qk1r3/N1q2BBp/P3P1bq/1P3B1P/B6B/K3nn2/1RqqrR1b/2N1B3 b - - 0 1 illegal: No proof kernel
3nN2k/P1P2B1R/3bqpq1/r2q1Prq/1BBB4/bn2BR2/N5P1/1bB3K1 b - - 0 1 illegal: No proof kernel
4BkB1/1nNr1P2/B2qB1BK/p1p4P/PqN5/R1n1pP2/1B6/n1rR2bb b - - 0 1 illegal: No proof kernel
2N5/1pKp1N2/1Pn5/p7/N1nPPkrr/2B2P2/1q1N1b1r/1RbBrNRN b - - 0 2 illegal: No proof kernel forced: wxLB
Nr6/3KNB1p/2n1p1b1/2Pn1pqR/5P1q/NNr1B1NP/2b1P1qN/R2kb3 b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 g4 f4 Qb6 Qd3 Qd8 Qf3 gxf3 Kf2 a5 Kg3 d5 c4 Kd7 Kg4 Ke6 b4 a4 b6 f2 c6 f6 b5 a3 c7 a2 c5 d4 b7 d3 b6 d2 Na3 d1Q Nf3 Qe1 Be3 Nc6 b8N Kd5+ Nd7 Ke4 b7 Bh6 b8N Bg5 g3 Ba6 c8N Bd3 Ncb6 Bh4 Bh3 f1B Bg2 Ra4 Na8 Rc4 Bh3 Rc3 Bg2 Nd4 Nc6 Bc2 Na5 Nc6 Nb3 Qf2 h3 Qe1 Rg1 Qf2 Bh1 Bg2 Rgd1 Qg1 Nh2 Qf2 Rd5 Qf1 Rb1 a1Q Rh5 Qb2 Ra1 Qbc1 Ne5 Qce1 Nef3 Qg1 Nf1 Qef2 N3h2 Qd5 Rh6 f5+ Kh5 Bf3+ g4 Bg3 Kg5 e6 Rh5 Nge7 Kf6 Rb8 g5 Qfg2 g6 Be1 g7 Qd8 g8N Nd5+ Kf7 Qh4 Ne7 Qgg5 Bd2 Q1g2 Be3 Nd8+ Ke8 Nc6+ Kd7 Bg4 Rd1 Bf3 Rh6 Bh5 Ra1 Bf7 Rh5 Bg6 Bc1 Bd2 Ng3+ Ke3 Nb5 Qg1 Bf3 Qg2 Na3 Kf2 Rh6 Ke1 Bh5 Bf7 Bg6 Kd1 Rh5 Be8+ Kd6 Be1 Bf7 Bd3 Be3+ Bb1 Bg8 Bf7 Kd7 Bg6 Bc1 Bd3 Bf7 Bc2 Be3+
1r1r4/bp1k2bP/N1B2n1r/1B2qb2/1P1nP3/2BKNp1R/1N3R1P/1BN5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 a4 d4 Ke7 dxc5 Ke8 Qd5 Nf6 Qd3 Ng8 Qb3 axb3 Kd2 d5 e4 g5 a4 f5 c4 d4 h6 g4 a5 g3 a6 d3 a7 b2 c6 f4 c7 g2 e6 Bd7 c8B Ba4 e7 Qb6 c5 Bb5 c6 Bc4 h7 Nf6 c7 Bb5 Ra3 Bh6 Ne2 g1B Be6 Bd4 c8N Bf8 Bd5 Qa5 Nb6 Na6 Na4 Rb8 a8N Nc5 Nbc3 b1Q Nb2 Kd7 Ncd1 Bg7 Ne3 Rhd8 Nc7 Ne6 Na6 Ba7 Rc3 Nd4 e8B+ Kd6 Rg1 Bd7 Rg2 Bf5 Rf2 Qba1 Bb5 Qc7 Rb3 Qc6 Ra3 Kd7 Rb3 Bc5 Kc3 d2 Kd3 d1R+ Bd2 Qa5 Nc1 Ba7 Be2 Rg1 Bc3 Rg6 Bd1 Qc7 Bc2 Qe5 Bb1 Rh6 Rf3 Ra8 Rh3 f3 Ra3 Qg3 Ra2 Rdb8 Nbc4 Qf4 Rf2 Qe5 Nb2 Rd8 Ne2 Rac8 Nc1 Rb8 Bdxc6+
2N1NqNb/3B1Pp1/r5P1/qP1K4/1R1B4/3qb1n1/P1p1kR2/1r2BNbB b - - 0 1 illegal: Other
3NB3/b2P1n1q/1N1rPr2/pR2Bkq1/4r2B/2N4K/nPPp3p/RBN5 b - - 0 1 legal: proof: d4 b5 h4 d5 a4 e5 axb5 g5 hxg5 c5 e4 Bg7 f3 Bb7 exd5 e4 d6 e3 Qd2 Be4 fxe4 Bh6 d5 Bf8 Qd4 cxd4 g4 Kd7 b6 a5 g6 h5 e5 f5 g5 f4 g7 d3 g6 e2 Kf2 e1R Kg2 h4 b7 f3+ Kh3 f2 Bg5 d2 Nc3 Rh7 Bb5+ Nc6 b8B Rh5 Nge2 Nh6 g8N Ra6 g7 Nf7 Nc1 Re4 Ne7 Rh6 g8B Rf6 Nc8 Rb6 Rh2 f1Q+ Rg2 Qe2 Rf2 Ra6 Rf5 Qh5 Ba4 Qh7 Nb6+ Ke8 d7+ Ke7 d6+ Ke6 Bb5 Nb4 Bc6 Rg6 Be7 Na2 Rh5 Bg7 Bg5 Qf6 d8N+ Kf5 Be8 Bf8 d7 Bc5 Bd6 Qfg7 Bb8 Rd6 Bf6+ Qg5 Be7 Nh8 Bd5 Rf6 e6 Nf7 Be5 Bg1 Nc4 Rd6 Nb6 Nb4 Ba2 Be3 Bb1 Na2 Kh2 h3 Rh4 Ra4 Rb4 Bc5 Rb5 Re4 Nbd5 Ba7 Nb6 Qgh5 Kg3 h2 Kg2 Rh6 Bh4 Rf6 Kg3 Qg5+ Kh3
q4R2/B1N1r3/2qbN3/1qnP1p1k/B1r2P2/1P3R1K/B2nb1P1/Br3bRR b - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 Qd7 a4 Qd6 axb5 Qd8 d4 g5 hxg5 e5 d6 Bh6 d5 Bf8 Qd4 exd4 e4 h5 f4 f5 Kf2 Kf7 Kg3 Kg6 d7 c5 b6 a5 e5 c4 e6 d3 b7 c3 b3 h4+ Kh2 c2 e7 a4 e8R h3 Na3 d2 Rb1 d1B Bb2 c1Q Ba6 Qa5 d8R Nd7 b8B Be2 Bd3 Rh7 Nb5 a3 Bg7 a2 Re3 a1Q Nc7 Nc5 Nf3 Bd6 Ba7 Ba6 Nd4 Qb5 Rf3 Nf6 Nde6 Kh5 g6 Rc8 Rf8 Nfe4 Bb2 Qc3 g7 Nd2 g8B Re7 Rbg1 Qa3 Kg3 h2 Ba1 Qcc4 Kh3 Qc6 Rd1 Q4b5 Bb1 Qaa4 Rhg1 Qa8 Ba2 h1R+ Kg3 Bf1 Bh7 Qbc6 Rb1 Bae2 Bg6+ Kh6 Be8 Qcb5 Bc6 Kh5 Bb7 Qac4 Ba6 Qbc6 Bb5 Qd3 Ba4 Qdb5 Re1 Rb8 Rd1 Qd3 Nd4 Rb4 Re1 Qdb5 Nde6 Rc4 Rc1 Bd1 Rb1 Bfe2 Re1 Bd3 Ree3 Rg1 Kh3 Re1 Rf1 Bf3 Rh1 Bd1 Rb2 Bf3 Rc2 Rb1 Rcc1 Bd1 Rg3 Bf3 Rcg1 Bf1 Bb8 Bd1 Ba7 Bde2 Rf3
1R2n1BN/q1rk4/B3b1P1/1Kp1bN1P/1bnP2rN/B1P4r/6qR/4BnN1 b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 Nf6 axb5 Ng8 f3 Nd7 f4 Nb8 g4 h5 f5 g6 fxg6 Bb7 g5 Bc8 Qg4 hxg4 Ke2 c5 Kd3 e5 Kc4 f5 b4 a5 h4 a4 d4 a3 b6 f4 d6 e4 g7 a2 b7 e3 g6 g3 b5 f3 b6 f2 Ba3 e2 Nd2 e1B Ndf3 g2 Rh2 Qg5 Kb5 Ra7 Rb1 Nf6 g8B Nc6 b8N a1Q b7 Ne5 Nc6 Nc4 b8B Bg7 Ne7 Be6 Nf5 Bb4 c3 Rc7 d7+ Kd8 Bd3 f1N Rb2 Ne8 h5 Be5 Rb1 Rh7 N3h4 Rf7 Ne7 Rf3 Nef5 Rh3 Rb3 Rc8 Bd6 Qd2 Be7+ Kc7 d8N Kd7 Nf7 Rc7 Nh8 Qdb2 Bg5 Qe2 Bd2 Qa2 Ngf3 g1R Be1 Rg4 Ng1 Qf2 Be4 Qf3 Bb7 Qag2 Ba6 Qa8 Rb2 Qa7 Ka4 Ba5 Rb8 Bb4 Kb5
5NbR/Rr1b2bn/NP1B1Nn1/n1bB2kP/1PN1qp1q/4BPr1/B4K2/8 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 Qd7 a4 Qd6 axb5 Qd8 d4 h5 gxh5 e5 d6 Be6 d5 Bc8 Qd4 exd4 h4 c5 b4 g5 e4 f5 h6 Kf7 h5 Kf6 d7 a5 h7 c4 f3 f4 b6 a4 d6 a3 Bd3 c3 Be2 c2 Kf2 a2 Nd2 d3 Nh3 g4 Rd1 Nc6 Ng5 Ra7 Nc4 Ne5 Be3 Ng6 e5+ Kf5 e6 c1Q e7 d2 e8B Rb7 Bf1 Bg7 Ne4 Nf6 Bf7 Qc2 Bd5 Rg8 h8N Nh7 Nf6 Kg5 Bd3 Qe7 d8N Bd7 Nc6 Qe4 Rg1 d1B+ Be2 Qc3 Nb8 Bb3 Na6 Qc1 Rg3 Qh1 Bd3 Qh4 Bb1 Be6 d7 Ba4 d8B Bad7 Ke2 Bf7 Rg1 g3 Be7 g2 Re1 g1B Bd6 Ne5 Ng6 Bf2 Nf8 Ng6 Bc2 Bfe6 Bb3 Bg1 Rab1 a1N Ba2 Nb3 Ra1 Na5 Rec1 Bf2 Rd1 Be1 Kf1 Bc3 Ke2 Bd4 Rdc1 Bc5 Rd1 Qh3 Kf2 Bf7 Re1 Qh4+ Kg1 Nh8 Nc7 Qe7 Ng6 Kh6 Bb1 Bf8 Bf2 Nc6 Ra7 Na5 Na6 Qe2 Kg2 Qc2 Re8 Qe4 Be3 Bfe6 Kf1 Bf7 Nge5 Rg3 Ba2 Bg7 Ng6 Kg5 Kf2 Bfe6 Rg8 Bf7 Nf8 Ng6 Rh8 Bfe6 Bb8 Bg8 Bd6
k2R1nB1/pP1RKbq1/N1b2r1n/P3p1N1/1N2P2R/1q4P1/b1nN1r1B/3R4 b - - 0 2 illegal: No possible last move
2r5/3N1nqp/bN2NrnP/BpBr4/1RRP1q2/1BPNb3/k3KpP1/3B4 b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Be6 fxg5 Bc8 b4 c6 b6 Qd6 b7 Qd7 b5 Qe6+ Qe2 Qd6 b6 Qd8 Qb5 cxb5 h4 Kd7 h5 Kd6 h6 Kc5 g6 Kb4 g7 f5 d6 e5 d3 a5 d7 e4 Bg5 a4 Bf6 e3 Na3 e2 Rc1 f4 Bd4 f3 Nh3 Nc6 b8B Qc7 d8N Ra6 b7 Ne5 Nc4 a3 Nf2 a2 Rh4 Ne7 g8B a1Q c3+ Kb3 Rb1+ Ka2 Bf7 Qd7 Bc7 Rf6 b8N N7g6 Ba5 Ba6 Bdb6 Ba3 Bc5 Bc1 Rb4 Qe7 Bd5 Qg7 Ne6 Nf7 Nd7 Rc8 Rf4 Qb2 Rh4 Bg5 Rf4 Qa3 Kd2 e1R Be2 Rh1 Bd1 Rh5 Ke1 Qc1 Ncb6+ Ka3 Rfe4 Bf4 Bb3 Rd5 Rec4 Bg5 Ng4 f2+ Ke2 Kb2 d4 Kb1 Bbc2+ Ka2 Nge5 Bf4 Nd3 Qe3+ Kf1 Qf3 Ba4 Be3 Bac2 Qf5 Ke2 Qf4 Bb3+
1BN1qB1N/N3pP1r/BK2P3/np1R2b1/6Pr/1pR4P/n1q1kB2/2bb3N b - - 0 1 illegal: No proof kernel
8/3p1N2/1qp3pn/Rqr1r1nN/PbPKR3/1N1P1P1r/b1N2B2/2BkBB2 b - - 0 2 legal: proof: e4 a5 a4 f5 exf5 b5 g4 h5 gxh5 b4 Qf3 Rh7 Qa3 bxa3 b4 Rh6 bxa5 Rh8 Ra2 Kf7 Ke2 Kf6 Ke3 Ke5 h4 c6 f6 e6 f7 g6 h6 Ne7 a6 Qe8 a7 Rh7 h5 Ng8 f3 Qd8 d3 Na6 Nh3 Nc7 Nf4 Ba6 Nd2 Bc4 c3 Rb8 a8N Rb5 Nb6 Qb8 Nbd5 Qb6+ Ke2 Bb3 c4 Kd4 Ne3 Kc3 Rh2 Bc5 f8B e5 Rh4 e4 Rb2 a2 Nc2 Ba3 Bc5 a1Q Bf2 Rc5 Ke3 Ba2 Rb5 Qb2 Ra5 Q2b5 Nb3 Ne6 Rg4 Rh8 h7 Bb4 h6 Ng5 Rh4 Nh3 Bd2+ Kb2 Kd4 e3 Rg4 e2 Bde3 e1R Bd2 Re7 Bde1 Ree5 Rh4 Ne7 Rg4 Rc8 h8N Ng8 h7 Ng5 Nf7 Rce8 Nba1 Kc1 Nb3+ Kd1 Rh4 Ne4 Rg4 Rh5 Rh4 Ng5 Rg4 Rh2 Nh5 Ree5 Re4 Rh1 h8B Re8 Ke3 Nh6 Bb2 Ree5 Bc1 Rh3 Kd4
5R1N/B1r3R1/2b2pnk/bb1B3P/bN2nr2/pp2NR2/2R1PPPq/3NK3 b - - 0 1 illegal: Other
1n2b3/PP1p1pb1/2r5/4RPKR/pN1p1BBp/P4q1k/R6n/2BBNR1r b - - 0 2 illegal: Other
r1k1NbNR/8/1Kn1P1q1/pbp2NB1/3r1qB1/1pPb4/PPpB3B/N2n2R1 b - - 0 1 legal: proof: g4 h5 gxh5 d5 f4 e5 fxe5 d4 c3 d3 Qc2 dxc2 Kf2 Kd7 Ke3 g5 Kd4 b5 e4 a5 h4 f5 h6 f4 h7 c6 h5 g4 h6 b4 Bh3 f3 Ne2 f2 Ng3 f1B Nf5 Bg7 Kc5 g3 d4 g2 d5 Bca6 d6 Nf6 Nd2 Nd5 Nb3 Ne3 Bd2 Qe7 Kb6 Rd8 h8N g1Q h7 c5 Ng6 Rg8 h8B Qe6 Nge7 Qg5 Bg4 Rd8 Ng8 Bfe2 Rag1 Qc4 Na1 b3 Rh2 Ke6 d7 Bf8 Bg7 Qd4 Rh8 Nc6 Bh6 Qg7 Bg5 Bed3 Bf4 Nd1 Bh2 Re8 d8B Kd7 B8g5 Red8 e6+ Kc8 e7 Qg6 e8N Bab5 e5 Qf4 e6 Rd6 Rf1 Rd4 Rg1
n1QR4/2N1nB2/1P1qn3/1b1bBP2/6K1/nP4b1/1PRBkP1r/2b3RN b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 g5 h4 d5 cxd5 gxh4 d3 a5 d4 c5 dxc5 b4 Qd4 b3 axb3 Ra6 Qd1 Rb6 cxb6 Ba6 Ne2 Bb7 Ng1 Bc8 Ke2 Kf7 Kf3 Kf6 g4 Ke5 g5 h5 g6 a4 d6 a3 g7 a2 d7 h3 Nd2 Kd4 Ba6 e5 Qe1 h4 Bc4 h2 Rb1 a1N Kg4 e4 Qd1 e3 Qe2 h3 Be6 Na6 Ne4 Nc2 Nd2 Nc7 Ra1 Na8 Ne4 Ba6 Kf4 Bb5 Qf3 Kd3 Qh5 e2 Bd2 Bd6+ Kg4 Na3 Nf3 Qf6 Rhc1 h1N d8B h2 Rc8 Ng3 Rc2 h1B Qe8 Rh2 Nd4 Nh5 Ng3 Nf4 Rg1 Bd5 Nh1 Be5 Bc7 e1B Ba5 Qf8 Qc8 Bd2 Bc3 Bc1 Bd2 Nh3 Bb8 Bg3 Bd6 Ng5 Be5 Ba4 Nb5 Ke2 Nc7 Qd6 Bd4 Bb5 Be5 Ne7 g8R Ng6 Rh8 Ne7 Bf7 Ne6 Rd8
1n1QnnK1/1P6/2bP2P1/n2Nn1RB/1P1RP3/1BN5/2n1n1N1/Rn2bk2 b - - 0 1 legal: proof: e4 d5 g4 a5 d4 g5 c4 h5 cxd5 b5 h4 f6 a4 Kf7 axb5 Kg7 d6 Rh7 d5 Ra7 d7 Na6 d6 Nb8 f3 e5 Bf4 gxf4 g5 Qe7 Qc2 Qe6 Qd1 Qd5 exd5 e4 Qd2 e3 Qd1 Kg6 Ke2 Re7 Ke1 Re4 fxe4 Ra6 Qf3 Kg7 Qd1 Rc6 g6 Rc2 Nf3 Rg2 Ng1 Rg5 hxg5 Ba6 Qd4 Bb7 Qd1 Bc8 Ke2 c5 Kd3 f3 Kc4 f5 d8N f2 d7 a4 b3 h4 b6 f4 b7 f3 Qc2 e2 Nh3 e1N Rg1 a3 Nc3 a2 Qc1 Nf6 Rb1 a1N Qf4 Nec2 Qd6 Ne8 Qh2 Nd4 Rg2 Nac2 Nd1 Ne6 Bd3 f1N Qh1 f2 Nf7 Ng3 d8R f1N Ne5 Ne2 Nf7 Bd7 Ne5 Bc6 Nf4 h3 Ng4 h2 Qg1 h1N Ra1 Nf2 Nf6 Ng4 Nc3 Be7 b4 Nf8 Qd4 Bd6 Nh3 Bg3 Nf4 Bf2 Rg1 Be1 Ng2 Ne5+ Kb3 Na3 Bc2 Ne3 Bd1 Nb1 Rd6 Nf7 Rd8 Nc2 Kc4 Nc1 Bh5 Nb3 Qd1 Na5+ Kd3 Ne3 Rd6 c4+ Kd4 Nc2+ Kc5 Ne5 Rd8 Nc7 Kd6 Ne8+ Ke7 Na6 Ng4 Nb8 N4e3 Kh8 g7+ Kh7 g6+ Kh6 g8B Kg5 Nf4+ Kh4 Nfg2+ Kg3 Rd6 Nf3 Kf7 Kf2 Qd4 Nf6 Kg7 Ne5 Be6 Ne8+ Kg8 Nh7 Qb6 Nf8 Qd8 Bd2 Rd1 Be1 Rd4 Kg1 Rd7 Kf2 d6 Kg1 Ned5 Kf1 Na2 c3 Rh7 Ne3 Rh8 c2 Nac3 c1N Rh7 Ne2 Rf7+ Bf2 Rf5 Nc2 Rg5 Bg3 Ne7 Bf2 Bb3 Be1 Ned5
Bn3k2/1B3rb1/BqrR4/QP2PqP1/p2b2n1/KRP3qN/P5N1/N5b1 b - - 0 1 legal: proof: f4 g5 d4 e5 dxe5 h5 Be3 h4 Bf2 Rh7 fxg5 Rh6 g4 Rh8 Bg3 hxg3 c4 b5 Qc2 b4 Qa4 Ba6 Qd1 Bb5 cxb5 Bc5 Qc1 Be7 Qd1 Bf8 Nc3 c5 Qb3 c4 Nb1 c3 Qd1 c2 Qc1 Qc7 Qd1 Qc3+ bxc3 Rh7 Nf3 Rh6 Ng1 Rh8 Kd2 c1B+ Kc2 a5 Kb3 f5 e4 d5 h4 f4 g6 d4 g7 d3 e6 g2 e5 d2 g5 f3 h5 f2 e7 Kf7 e8B+ Ke7 h6 Bb2 h7 Ra7 Nh3 g1B Na3 Nh6 g8B Bg7 Nc2 Ng4 Rb1 Kf8 Bg2 f1Q Be6 Qf5 Bec6 Ba3 Bc8 Rf7 Na1 Qf4 Qc1 Qg3 B6b7 d1Q+ Qc2 Rg8 h8N Qd4 Qc1 Qb6 Ng6+ Ke8 Nh4 Kf8 Ka4 b3 Qd2 Bd4 Rhd1 b2 Ba8 Bb4 Bgb7 Bbc5 Ng2 Bg1 Qd7 Bcd4 Ka3 a4 Qc7 Rh8 Ba6 Rh6 Bcb7 Rc6 Rd3 Bdf2 Rd6 Bd4 Rd1 b1Q Rd2 Qgd3 Rb2 Qg3 Rb4 Qf5 Rb3 Qa7 Qa5 Qc5+ Qb4 Qb6 Qa5
1N3bqB/k3q2P/R6P/2bpP3/P3b1Pb/B1N2rNR/7n/KR2r1bQ b - - 0 1 illegal: No proof kernel
3brNKR/Nb3P1p/1B4bR/1n1B1nnP/2P1PQ1b/P1B5/1k6/N3b2b b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 g4 axb4 gxf5 Qa5 Kd2 e5 Ke1 e4 Bg2 Qa6 Bf1 Qd3 exd3 Ra3 Be2 Ra6 Bf1 Ra8 Bh3 b5 Bg2 e3 Bf1 Ra6 Nh3 Re6 Ng1 Re4 dxe4 Bb7 Bg2 Ba6 Bf1 Bc8 Ke2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 d5 h4 g5 a3 g4 c3 e2 f3 e1B f6 g3 c6 b3 f7 g2 c7 d4 Rh2 d3 Ra2 b2 Bd2 b4 Nh3 g1B Qc1 b3 Nf4 Bb7 c8N Nc6 Na7 Be7 f8B Bgf2 Ne6 Bd8 Bc5 Nce7 Nf8 Nh6 Bb6 Nf7 c4 Nf5 Bh3 Ng5 Bda5 Rg8 Nd2 b1N Rb2 Nc3 Bg4 Nb5 Bc3+ Bd4 Rb1 b2 Nb3 d2 Na1 d1B Qd2 Be2 Rd1 b1B f4+ Kf6 Qc1 Bf3 Rd3 Bh1 Qd2 Ng3+ Kh6 Bc2 f5 Ke5 f6 Bd1 Be6 Bh5 f7 Bg6 Bd5 Rh8 Bb4 Bdf2 Kg7 Ne2 Bc3+ Ned4 h5 Bh4 Rf2 Bc8 Rf6 Bb7 Ne6 Re8 Nf8 Bf5 Rh6 Bg6 Bca5 Nf5+ Kg8 Nc3 Qc1 Nb5 Rd2 Kf4 Rd4+ Kf3 Qf4+ Ke2 Bd2 Kd1 Bda5+ Bd2 Bc3 Kc1 Bc6 Kb1 Rd7 Ka2 Bd5 Bde1 Rc7 Kb1 Rc8 Bc7 Kh8 Re7 Nd7 Re5 Rf8 Re8 Rg8 Bd8 Nf8 Nfd6 Kg7 Ka2 Rh8 Nf5+ Kg8 Kb1 Bb4 Kb2 Bc3+
Bk1b2RN/N1P3BK/8/r2q2PN/2p1Rrpn/1pP1Q1r1/Pb5P/r5B1 b - - 0 1 legal: proof: d4 a5 e4 c5 b4 axb4 d5 f5 exf5 b6 Be2 Bb7 Bf1 Bc6 dxc6 h5 g4 g5 f3 Na6 gxh5 g4 f4 Nc7 Bh3 Ne6 Bf1 Ng5 fxg5 Ra4 Be2 Ra3 Bf1 Ra8 Kf2 d5 Ke3 e5 f6 c4 h6 e4 Kf4 e3 Kf5 b3 Kg6 b5 h7 b2 Bd3 e2 Be3 e1B Na3 b1R Qc1 d4 Nh3 b4 Rf1 b3 Bg1 Bg7 Bf5 d3 Nf4 d2 Bc8 d1R Bb7 Nh6 Nb5 Ra5 Ba8 Rd4 Nh5 Nf5 Na7 Qd5 f7+ Kd8 f8B Kc7 Qe3 Rf4 Rf3 Bd4 Bg7 Bb2 c3 Nh4+ Kh6 Bf2 Rh3 Rd8 h8N Kb8 Kh7 Rf1 Re1 Re8 Qe7 Bb6 Re4 Ra1 Qc5 Bc7 Qe3 Bd8 Rf3 Ref8 Rf1 Rf3 Rf2 Rg3 Rf3 Re8 Rf8 Re6 Re8 Rf6 Rg8 Rf4 c7+
1n1BbK2/2b4P/N2P1RR1/k1P1B1P1/qP1B4/1p3Qb1/3p1p1p/NRr2n2 b - - 0 1 illegal: No possible last move, all moves rejected
3r1n2/3b2bP/N2k1Pbq/2Bb1R2/Pb3rq1/P2B4/1NnPQq2/1KRN3R b - - 0 1 illegal: No proof kernel
B1b5/3R1N2/Pn2K1N1/Bq4P1/br2QRNP/4q1q1/nP2PB1n/b1b2kr1 b - - 0 1 illegal: No proof kernel
2n2r2/RPrB1k1n/3P4/RB1Qb3/KB1qPPb1/2qqN2n/2P5/RNrr4 b - - 0 1 illegal: No proof kernel
3b2r1/2B2nb1/3PnqBN/2n1P2R/kr3bN1/3R1BN1/nPPPK1Q1/nb6 b - - 0 1 illegal: No proof kernel forced: bxDB
Bbb1q3/q2nN2n/N1P1K3/3B3P/pnq2R2/1N1Qk1PP/P1R5/r1rRb3 b - - 0 1 illegal: No proof kernel
1R3r1N/Q4n1q/1K2Pb1N/R4N1p/P1bPkPb1/P2r4/4b3/n1BBr1Rb b - - 0 1 illegal: No proof kernel
1qrbN2r/3B2b1/2p4b/3B2PP/2PNPb1n/kr1RRP1K/1QRn1B1b/8 b - - 0 1 illegal: No proof kernel
1Q3Rr1/r2P3n/7n/1pk2P2/2P1RB1N/RPPB1r2/1b1Bq1nK/2Nrb1r1 b - - 0 1 illegal: No proof kernel
nQk1qB2/4npBn/3K4/1rP2PNP/1rPB1N1n/4RrP1/1bR2b1R/7b b - - 0 1 illegal: No proof kernel
4QR2/B3rP1n/rRqpR1PP/P1Bq4/N1bb1b2/1B3k1K/2P1b2N/nb6 b - - 0 1 illegal: No proof kernel
Br1Nq1R1/R1N2r2/7b/B1QN1P2/PB1K2nq/rbr1P1p1/P3P3/1n1kq3 b - - 0 1 illegal: No proof kernel
rR1bNq1n/4BQ1K/b4N1R/4PR2/nP2p1Pk/P2r1r1b/1PB5/1rB4q b - - 0 1 illegal: No proof kernel
1N1kqbBq/BR1bPr2/B6P/3R1pn1/P1K1bq1n/2b3P1/2Q3P1/3Nr1R1 b - - 0 1 illegal: No possible last move, all moves rejected
1r2r1BK/k1NpP3/P1Bq4/1nb2P1P/1P3Nn1/1rR1R1BQ/8/Rbb3qb b - - 0 1 illegal: No proof kernel
2b2NqB/2qQqqpN/4B1PP/Pq4bk/1P3P2/R4KR1/r1RN4/r3b2n b - - 0 1 illegal: No proof kernel
1nN3q1/P1k1RqB1/2q4P/2N3qR/1p1K2nr/1PQb1P2/qRP5/1N2rn1B b - - 0 1 illegal: No proof kernel
B3q2q/1nb2PQ1/2r3r1/B1pP2nn/1q1PR3/2PnNB1k/1P1RK1N1/nR6 b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 f5 axb5 Bb7 g4 Bc8 h3 fxg4 Bg2 g3 Bf1 g2 Na3 g5 Nb1 g4 Nf3 g3 Ng1 Bg4 hxg4 Bg7 Qe2 Bh6 Qd1 Bf8 d4 Kf7 f4 Kg6 g5 Kf5 g6 a5 g7 h5 b6 e5 b7 c5 Ra3 h4 Rh3 a4 Ba6 e4 Qe2 e3 Qb5 Kg4 f5 e2 f6 Qe8 f7 Bd6 Rb3 a3 Rd3 a2 Qb4 a1N Qb6 Nc6 b8R Nd8 Rh1 h3 Na3 h2 Nh3 g1N Rd2 g2 Bb7 Bc7 Qf6 Ra6 Ba8 Rc6 Nc4 Nb7 Nf4 Nh3 Ne3+ Kg3 Rf1 g1Q Nfg2 h1Q Qh6 Nf6 g8B Kh2 Qg7 Ng5 Bh7 Nh5 Be4 Kh3 Bf3 Rg8 c3 Qgh2 Kf2 e1N Ke2 Nd3 Rg1 Qe6 Re8 Qd7 Re4 Qe8 Rc2 Qd6 Bd2 Qdd8 Rb1 Qb8 Be1 Qh2 Rd2 Qhe5 Bg3 Qf6 Qh7 Rg6 Bd6 Qfh8 Qg7 Na5 Be5 Qb4 Bf6 Nb7 Bd8 Bd6 Bb6 Bc7 Ba5
3rQK2/3r2N1/3B2N1/q1P2bkP/2Pq1bP1/n2RnpR1/pP1r4/q2BN1R1 b - - 0 1 illegal: No proof kernel
6rr/3kb1n1/2p4P/1PBP1np1/2Br1N1R/q5N1/P1BRK1Pn/bq2QR2 b - - 0 1 illegal: No proof kernel
2R1NB2/2R1R2b/PNq1B2n/1r2pbq1/3prP1P/3n2Nk/4PPQ1/1r3n1K b - - 0 1 illegal: No proof kernel
1bk1n3/5P1b/R3PR2/PKP2Qpn/1p2B1q1/rP2B3/br2RNq1/B1q1N3 b - - 0 1 illegal: No proof kernel
1K2B1Qn/B3PnbP/1P1Rn3/1P1Pq3/p1pq3B/1k6/1r4Rq/Nr1b1N1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 e4 g5 h4 a5 b6 f5 d6 g4 d7 a4 h6 g3 h5 g2 h7 f3 h6 f2 Bg5 f4 Ne2 g1Q Rh2 f3 Nd2 Be7 Ng3 Ra7 Nh1 Rb7 Bh4 Na6 Rg2 Nc7 Bb5 c4 Nf1 Bf6+ Kd6 Bg7 e5 Ne7 e6 Ng6 e7 Ne6 b3 Kc3 b4 Qh2+ Kc6 Re8 h8B Rb8 Qc1+ Kb3 h7 Rf8 Qg5 Rf6 Nfg3 f1Q Rd1 Qe2 Nf1 f2 Qd5 Qee5 Rd2 Nef4+ Qe6 Rf8 Qg8 Ne6 Rd1 Bh6 B8f6 Bg7 Bfg5 Nh8 Be3 Rf4 Rd2 Qf6 Kd6 Bb7 Rd1 Bf3 Rd2 Bd1 Kc6 Rc8+ Kb7 Rc5 Bc6 Rb5 Ka7 Qc7+ Ka8 Qd6 Kb7 Qc5 Kb8 Qfe5+ Kb7 Qed5 Nfg3 f1N d8N Rf2 Bf4 Qh3 Bb8 Qe5 Be8 Qh2 Nc6 Ka3 Ba7 Ne3 Nf1 Nf5 Ka8 Nd6 Kb8 Qe1 Rd3+ Qc3 Rd2 Qce5 Rd3 Ra2 Rdd2 Ra1 Rd3 Rb1 Rdd2 Rd5 b5 Kb3 Nb4 Ndf7+ Ka8 Nc7+ Kb8 Rd6 Rd3 Rf6 Rdd2 Rf2 Rd3 Rfb2 Nc2 Qf5 d5 Qff4 Rf3 Qe5 Rf6 Qcd4 Rd6 Ne6 Na1+
1b1b2n1/P1RbP3/K1p1PkN1/Q1R1B2p/P3Bqr1/P3r3/1rN1R3/2N3qn b - - 0 1 illegal: Other
4q3/K1B3Br/P2PRn1Q/2Rr1Rr1/pb3k1P/Pp2n3/1PN1b2r/1Nr3B1 b - - 0 1 illegal: No proof kernel
1qkNn2B/1r1b4/1brBR1K1/1N1p1N2/P1P1Pbpr/4n3/2P2Q1P/2R1bB2 b - - 0 1 illegal: No proof kernel
2Q3R1/B3n3/p2B1Pn1/Pb1Rn3/r4NP1/2rnP3/NP1bprqk/K3NB2 b - - 0 1 legal: proof: h4 e5 c4 b5 e3 g5 hxg5 bxc4 Ke2 f5 e4 Qe7 exf5 e4 Ke1 e3 Na3 e2 Nb1 Qe3 dxe3 Ke7 Kd2 Ke8 Kc2 Kf7 a4 c5 g4 h5 f4 d5 g6+ Kf6 g7 h4 Nd2 c3 Kb1 c2+ Ka2 d4 Bg2 d3 Nf1 d2 Qe1 d1N Qg3 c4 Bh3 c3 Bd2 c1R Nf3 c2 Ne1 Nc6 Bb4 Nf2 Bc5 Bd7 Nd2 Nce7 Bf1 h3 Nb1 h2 Nc3 Bb5 Qf3 Rh5 Qb7 Nd3 Qc8 Ng6 Bb6 a6 Ba7 Bb4 a5 N8e7 Rb1 Nde5 Ka1 Rb8 Na2 Bd2 g8N+ Kg7 Nf6 Kh6 Rg1 h1Q Nd5 Qg2 f6 Rh2 f5 Kg5 f7 Kh4 f8B Kh3 f6 Rb6 Rh1 Rd6 Ndc3 Rd4 Nd5 Ra4 Nf4+ Kg3 Ned3 Qh3 Ne1 Rf2 Rh2 Qg2 Rh7 Nf3 Rg7 Kh2 Rg8 Nfe5 Qe6 Rd1 Qc6 c1N Qc8 Ncd3 Rc1 Nf5 Rb1 Rc1 Bd6 Rc3 Rd1 Nfe7 Rc1 Rca3 Rc5 Rc3 Rd5
1Q1N3N/Bn3Pb1/1prP1k1B/8/Rp1qnPPK/1Pb2rnb/2Rn4/2RB4 b - - 0 1 legal: proof: e4 a5 h4 g5 hxg5 d5 c4 f5 exf5 Bg7 cxd5 Bh6 Qg4 Bf8 Qb4 axb4 g4 Kf7 a4 c5 d4 h5 b3 e5 g6+ Kg7 d6 h4 d5 h3 d7 h2 d6 e4 a5 e3 a6 c4 a7 e2 Nh3 c3 Nf4 c2 Ra2 Rh7 Na3 Rh3 Ne6+ Kf6 g7 Qb6 Bh6 c1B f4 Rf3 Nc4 Qd4 Ne5 Bb2 Ng6 Nc6 Nh8 Na5 Nd8 Bc3+ Rd2 Rb8 Rg1 h1N a8R Ng3 Bg2 Re3 Kf2 e1N Rc2 Nf3 Rgc1 Nd2 Bf3 b6 Bd1 Nb7 Ra4 Rd3+ Kg2 Ra8 Kh3 Rf3 Kh4 Ra5 Raa1 Rc5 Ra4 Ne7 g8Q Bg7 Ndf7 Rc6 d8B Bd7 Bc7 Nge4 Qb8 Be6 Nd8 Bd5 Qc8 Bc4 Bb8 Bf1 Ba7 Bh3 Qb8 Nd5 Qc8 Ne3 Qb8 Nef1 Ra3 Nfg3 Ra4 Bf8 Bg5+ Kg7 f6+ Kh7 f7 Kg7 Bh6+ Kf6 Qc8 Bg7 Qb8
Bn1B1N1q/1PP1b3/3p3P/2N3BR/r3RPNq/p1n1qr2/3P1bK1/q1k3Q1 b - - 0 1 legal: proof: e4 b5 b4 c5 g4 f5 exf5 h5 bxc5 hxg4 a4 b4 Ra3 Ba6 Ra1 Bb5 axb5 Rh5 Nh3 Rh4 Ng1 Rh8 c4 Kf7 f4 Kf6 Kf2 g5 h4 a5 c6 e5 c7 e4 c8N e3+ Kg2 e2 b6 e1Q h5 d6 c5 a4 c6 g3 c7 b3 Nf3 b2 Rh2 a3 Ba6 g4 Bb7 Be7 Nc3 b1Q Bb2 Ra4 Ne5 Qd3 Rh3 Qde3 Ba8 Qf8 b7 Q1f2+ Kh1 g2+ Kh2 Qd8 Nb6 Qh4 Qg1 Qc8 Re1 Rh7 Qf1 g1B+ Kg2 Bf2 Qg1 g3 h6 Rg7 Nb5 Qd8 Nd4 Rg4 Nb3 Qe8 Kh1 g2+ Kh2 Rg6 Nc5 Rg3 Ba1 Rf3 Ng4+ Kf7 f6 Kg6 f7 Kf5 f8B Nf6 Bg7 Ne4 Baf6 Nc3 Nbd7 Qc8 Bg5 Qh8 Nb3 Ke4 Nf8 Kd3 B7f6 Kc2 Nc5 Qd4 Re4 Qe3 Nfd7 Bf8 Bd8 Be7 Qf1 Be1 Qf2 Kc1 Qg3 Bf2 Nf8 Qh5 Rh4 g1Q+ Kh3 Qge1 Kg2 Qd1 Ne5 Qg4 Rh5 Qh4 Ng4 Qc2 Ne5 Qb1 Ng4 Qa2 Qh2 Qa1 Qg1+
NB1R4/1P1Pbp1r/Q2PRPbb/B1pK4/2PN2R1/b3bn2/1kB2r2/1q3r2 b - - 0 2 legal: proof: e4 a5 b4 d5 exd5 h5 a4 b5 g4 hxg4 axb5 a4 Nc3 Nc6 Nb1 Na5 bxa5 Be6 Qf3 Bf5 Qd1 Bc8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 c4 Kb4 d4 g5 f4 e5 h4 c5 h5 g3 f5 g4 d6 a3 d7 a2 h6 g2 h7 g3 d5 Qb6 a6 Ne7 a7 Ng6 Bd3 Nh4 Na3 Kc3 Qa4 Be7 Bd2+ Kb2 Re1 a1B Nf3 g1R Bc2 g2 Nd4 Rf1 Qa6 g1B Ba5 Nf3 Rh4 Be3 Rg4 Rb8 a8R Qb7 b6 Bh6 Kd3 e4+ Ke2 e3 Kd3 e2 Ke4 Be3 Nab5 Rf2 Nc7 Rf1 Rd1 e1B Ra7 Bb4 Na8 Ba3 Rd2 Rg8 h8B Rg7 Re2 Rh7 Be5 Bh6 Nc7 Ra8 f6 Qb8 Re1 Bb7 Re3 Bc6 Rb7 Ra7 Na8 Ba4 Bc7 Bb3 d6 Rf2 Bd1 Bc2+ Kd5 Bg6 Re6 Kb1 Nc6 Bd4 Bb3 Bde3 Nd4 Kb2 Bc2 Qh8 Rb8 Qc8 Bd8 Qc7 b7 Qb6 Bc7 Qb4 Rg3 Qe1 Rd8 Qb1 Qc6 Ra6 Bb8 Rb6 Rg1 Rb3 Qa6 Rc3 Bd3 Rc1 Bc2 Rcf1 Rg4
b3rb1q/N1b2N2/4P1Nb/1q1Qp3/rPBBP3/R2RP3/1p2P2k/R3Kn1r b - - 0 1 illegal: Other
bn1q1Q2/4kR2/bpn4b/B2qP2q/1P1Pp1P1/P2Rr2B/7N/NBK1b2R b - - 0 1 illegal: No possible last move
7k/bP3qp1/n1P1BR1n/1K6/1PP5/p3BN1q/N2r1nPq/RbQqR2N b - - 0 1 illegal: No proof kernel
1r3NRn/N1Bn1nPp/1P3p1k/1BP1nr2/4b3/P1Qb4/R2bnP1R/K4N2 b - - 0 1 illegal: No proof kernel
nNrBb3/4PN1B/kPq1p3/rp6/P3PRQ1/2pn3K/N1b3PR/2b1R2q b - - 0 1 illegal: No proof kernel
n2r1R2/2Rpn1Bk/1B6/pK1PrBq1/1N1p2P1/1P1P2r1/bR1b2P1/2QN2q1 b - - 0 1 illegal: No proof kernel
1b3R1n/1Kb2p1n/5q1P/2N1N1r1/2Pn1P2/1pB2P2/r2BPp1Q/2RBnN1k b - - 0 1 illegal: No proof kernel
BQ1K2N1/b5B1/n2pk2q/2qP4/BpNqb1b1/2P3n1/pPPN1R1P/r3R3 b - - 1 2 illegal: No possible last move
BKR3Q1/3k1PB1/1p2P3/qp6/p1q1b1nn/PnRb4/1PP2qB1/2rNN2N b - - 0 2 illegal: No possible last move, all moves rejected
K3B1r1/5P2/P1pB1bp1/P1Nr2P1/N1k2r1p/2N5/3R2rP/bRqBrn1Q b - - 1 2 legal: proof: e4 a5 c4 e5 b4 d5 bxa5 dxc4 Be2 f5 Bf1 Nd7 Qc2 Nc5 Qd1 f4 f3 Bf5 exf5 e4 Qb3 e3 Qd1 Ne4 fxe4 Bc5 Be2 Bb4 Bf1 Bf8 Ke2 Kd7 Kf3 Kc6 a4 Kc5 g4 b5 d3 h5 e5 c3 Ke4 g6 e6 e2 f6 e1R+ Be2 c2 e7 b4 e8B f3 g5 f2 a6 f1R f7 b3 a5 h4 Bf4 c1B Nc3 b2 Ra2 b1R Rd2 Qc8 d4+ Kb4 Kd5 Be7 Kc6 Rb2 d5 Nh6 d6 Bf6 d7 Rg8 d8N Nf5 Na4 Ne3 Bf3 Kc4 Ne2 Rc2 Bh5 Bcb2 Bd6 Rf4 Nec3 Ba1 Nb7 Nf1 Nbc5 Rb8 Qf3 Rb5 Rg1 Ra2 Qh1 Rab2 Bd1 Rc2 Ne6 Rd5 Nec5 Ra2 Rd3 Rg2 Rd2 Qg4 Kb7 c6 Kb8 Qf3 Ka8 Qe3 Rb2 Qc1 Rb1 Rgg4 Rg2 Rg3 Re2 Rg2 Rd2
2N1N3/1b1k4/B1q1b1p1/b1P4N/4pnPB/1B1pnQ2/3PrP1P/n1Rn2KR b - - 0 2 legal: proof: g4 f5 b4 c5 e4 b5 exf5 h5 Qf3 a5 Qg3 h4 bxc5 hxg3 a3 b4 a4 Ra6 Nh3 Rb6 Ng1 Rb5 axb5 Rh6 Kd1 Rh5 Ke1 Rh8 c4 d5 f6 e5 f7+ Kd7 b6 g2 b7 b3 Nf3 g1N Nc3 g6 Nb5 d4 Ra4 d3 Ba3 b2 Bg2 b1B Kf1 Nh6 Na7 Nf5 Ng5 Qf6 Nh3 Na6 Nf4 Nb4 Bd5 Na2 Nh5 Nh3 b8Q e4 Qg3 Nc3 Qf3 Bb7 Nc8 Nf4 Kg1 Qc6 Bb2 Rh6 Ra1 Nd1 Bf6 a4 Bh4 Ba2 Rc1 a3 Be6+ Kc7 Bd5 Nfe3 Be6 Bg7 f8N Bc3 Nh7 Ba5 N7f6 Bb3 Bf7 a2 Ne8+ Kd7 Bg8 a1N Bf7 Qf6 c6+ Kd8 c7+ Kd7 c5 Qc6 Be7 Be6 Bd8 Bf5 Bb3 Be6 Ng3 Rh3 Bh4 Nf1 Nh5 Rg3+ Qg2 Re3 Qh3 Re2 Qf3 Ba8 Ne7 Nfe3 c8B+ Kd8 Ba6 Kd7 Nc8 Bb7 Rc4 Nf5 Rc3 Nfe3 Rc1
1q3r2/P1n1Np2/kbP2bp1/1pr4r/2N1P1bN/1B2BP1P/1BRQ4/R5bK b - - 0 1 illegal: No proof kernel
1nk3r1/2nRN3/1pb1B1N1/1P1n1b1P/n1B5/RPB3pp/1qQ1KPP1/q4N2 b - - 1 2 illegal: No possible last move
6B1/1P5R/3qNBB1/K1nNRQ1q/P4npP/prN2npP/P1k3nr/7b b - - 0 1 illegal: No proof kernel
8/4pNPq/Kb3p2/1R1n1kbp/Bq1P1P2/2N2bPb/1Q1RB1BP/2R1n1r1 b - - 1 2 illegal: No proof kernel
8/1q6/r1Nb1kBP/NpbP3K/qPb1b3/b1p1pNR1/BB2P2P/1QnR4 b - - 0 1 legal: proof: f4 d5 c4 dxc4 a4 b5 g4 e5 a5 h5 gxh5 e4 Nc3 Nd7 Nb1 Ne5 fxe5 Rb8 Kf2 a6 Ke1 Rb6 axb6 a5 Kf2 Ke7 Kg3 g5 b4 f5 d4 c5 h6 a4 e6 f4+ Kg4 f3 b7 a3 b8N f2 Ra2 c3 Bf4 c2 Qc1 c4 Bd2 c3 Ra1 a2 Bg2 f1B Bf4 Qc7 Nd7 Nf6+ Kg3 g4 Kh4 g3 Nh3 Qb7 Qb2 c1B Nb8 Nd7 Nd2 Ne5 Nb3 Kf6 e7 Nd3 e8B Bd6 Ng1 Be6 Na5 Bc4 Qb1 Ba3 Nf3 Nc1 Kh5 Rg8 Bh3 g2 Bg6 g1B Nbc6 Ra8 Be6 Ra6 Bg8 Bf2 Rg1 Bg2 Bd2 Bh1 Rg3 Bg2 d5 Bfc5 B8h7 Nd3 Bc1 e3 Bb2 Nc1 Bc2 Bh1 Bhg6 Bg2 Bb3 Bh1 Qc2 Bg2 Rb1 a1Q Ba2 Bh1 Nd2 Be4 Nf3 Nb3 Rd1 Nc1 Bb1 Qa2 Qd3 Qb3 Ba2 Qa4 Qb1
1k6/1PqNB1Q1/1PP1K3/2ppp1b1/b4R2/N2NPr2/P1q2p1R/Rr1qn2B b - - 0 1 illegal: No proof kernel
2N2R2/2k3bK/RnB1rPpp/8/1PPN3B/NpB3rP/npPb2Q1/r6b b - - 0 1 illegal: No proof kernel
Q5bN/8/knB2rB1/p3NpPp/2P3q1/K5P1/PP1b1bpR/1NbrB2R b - - 0 1 illegal: No proof kernel
k3K3/2b1P3/1N5n/1N2R1pp/p2pP1RB/nn2b2r/1PNP1RrP/nQ5B b - - 0 2 illegal: No proof kernel forced: bxDB
Br6/RB2k1K1/1pPp2QR/bp1RBr2/P2P1pP1/4N2P/b1N3np/1q1n4 b - - 0 1 illegal: No proof kernel
2n5/2r3Pb/2BQ1pBP/1Kp3N1/P1rbpP2/1N1pp1Pn/2nBkR2/1N5R b - - 0 1 illegal: Other
n2bnNnQ/1r6/1pppB3/kn2PpNp/1RR2P1P/BRP5/n3N1P1/K7 b - - 0 1 illegal: No proof kernel
1rN1R3/N4K1p/b4p2/pqRp2b1/P5P1/k1PPPp2/3BBQp1/1B2n1nR b - - 1 2 legal: proof: f4 e5 g4 exf4 b4 c5 bxc5 f6 g5 Qe7 g6 Qf7 gxf7+ Ke7 h3 a5 Bg2 g5 Bf3 b5 Bb7 g4 Bg2 g3 Bf1 Ra6 Nf3 Rd6 Ng1 Rd5 Bg2 Rg5 Bf1 Rg4 hxg4 Bh6 Bb2 Bg7 Bc1 Bf8 a4 d5 e3 f3 c6 Kd6 c7 Kc5 Nh3 Kb4 Ng5 g2 Kf2 Bf5 Kg3 Na6 Kf4 Bg7 c8B Bf8 Qe2 Nh6 Na3 Be6 Ne4 Nf5 Nd6 Nd4 Qf2 Nc5 c3+ Kb3 Rb1+ Ka2 Bd7 b4 Nab5 b3 Na7 b2 Ba6 Bg7 f8R Ka3 Bd3 Bf5 B7b5 Bc8 Bg6 Ba6 Rd8 Ne2+ Kf5 Ne4 Ke6 Ng1 Kf7 Bh6 Be2 Nc5 Rc8 Nd3 Rc5 Ne1 Bc2 Rg8 d3 Bg5 Bd2 Rb8 Rc8 Rb4 Re8 Rb6 Ndc8 Rb5 Rc1 b1Q Rd1 Qa1 Rb1 Rb8 Rb5 Qb2 Rc5 Qb5 Bb1
n2nB2B/KP1PQr2/b1p1p2k/B3Pn2/2P4N/R1R2R1r/qq1b2bP/3q3N b - - 0 1 illegal: No proof kernel
1RrB1qb1/rb1pP3/BPn3K1/2pN3N/2PPQb1q/1r2n2q/k1PB2N1/R7 b - - 0 1 illegal: No proof kernel
1R4b1/1qRN2Q1/1BrN1rbp/Ppb1K1n1/2qBn2P/1P3q2/1P2P3/R2nkB2 b - - 0 1 illegal: No proof kernel
N1q1b1B1/Br1R1Bp1/nQ1Pq2P/R3k2b/4PpP1/2n1b3/bN3P1R/2r1n1K1 b - - 0 1 illegal: No proof kernel
2Q2b1B/3P4/rpP3Np/1b2K2P/1n2B3/1n3N1n/nP1rR1PB/qk1RrR1q b - - 0 1 illegal: No possible last move
1BN1r2r/2n1qN1P/5N1b/1p1pn1Qb/B4Rp1/PqPPK2B/2r1R1Pb/3k4 b - - 0 1 illegal: No proof kernel
1n3kB1/4p1nN/b1p4P/R2N1QPR/1P2P2r/b1P3n1/1p1rBK2/1N1qr1Bq b - - 0 1 illegal: No proof kernel
1n1Bbr2/n1p3KB/p1P1N1RP/4N1P1/Pnqr2n1/4p3/3RPnQ1/1R1Nb2k b - - 0 3 illegal: No proof kernel
3bbR2/1KN1b1pp/P2kn2P/QRr1P3/1n3NPN/rp4B1/qP1r2R1/b4B2 b - - 1 3 illegal: No possible last move, all moves rejected
B7/KPB1pp1P/2k1PR1r/1p2r1N1/Bb2b3/1P2rb1P/1q2b3/nRNQ1N1n b - - 0 1 illegal: No proof kernel
2k5/rqnb2n1/N2Q2B1/1npp4/2P1P2R/pnR2B1N/PrRPPb1K/1q2B3 b - - 1 3 legal: proof: h4 g5 b4 gxh4 f3 a5 Ba3 e5 Bb2 e4 fxe4 a4 Ba3 Qg5 Bc1 Qa5 bxa5 Be7 Bb2 Ba3 Bc1 Bf8 Kf2 Kd8 g4 b5 Kg2 d5 c4 h5 g5 f5 a6 b4 a7 h3+ Kh2 f4 g6 h4 g7 b3 Ba3 f3 Bd6 f2 Bb4 a3 Bc5 b2 Qc2 Nc6 Qd3 Bd7 Be7+ Kc8 Qc2 Nd4 Nc3 b1N Nd1 Nc3 Qb2 Nb3 Bd6 Nb5 Qc3 Nf6 g8R Ne8 Bg2 f1Q Rc1 Qf7 Bg3 Bc5 Bf3 Bf2 Nb2 c5 Nd3 Rh6 Qb2 Rb6 Nb4 Rbb8 Rg4 Nec7 Qe5 Rb7 Rc2 Rab8 a8B Ra7 Qe6 Qg6 Qc6 Bd4 Rc1 Bf5 Na6 Nc3 Bg2 Na5 Rc2 Rb2 Qf6 Qh6 Bc6 N3b5 Rc3 Nb3 Be8 Bd7 Qe7 Qc6 Bg6 Qb7 Qd6 Be3 Nf3 Bd4 Rhc1 Bg1+ Kh1 h2 Bf1 Be3 Kg2 h1N Bf2 Ng3 R1c2 Nh5 Ng1 h3+ Kh1 h2 Rh4 Ng7 Bg2 Bd4 Bf3 Be3 Kg2 h1Q+ Kg3 Bd4 Nh3 Qb1 Be1 Bf2+ Kh2
3B1q1B/2P1pbn1/5Rpr/2bNRPpn/r1Bk4/2Pqr1P1/N1r1P3/2N2QK1 b - - 0 1 illegal: No possible last move, all moves rejected
1B1B4/1R2p2p/3b2R1/K1pkPPN1/RP3r1q/b1qbr3/rQP1N1BP/1r4n1 b - - 0 1 legal: proof: d4 c5 g4 f5 a4 fxg4 d5 b5 axb5 Nc6 dxc6 Qb6 Bh3 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Ke6 e4 g5 f4 d5 b4 a5 c7 d4+ Kc4 a4 b6 d3 Kb5 g3 b7 d2 b8B g4 Be2 a3 Qe1 d1R Nh3 g2 Rg1 a2 Nc3 g3 Rb1 a1Q Qf2 Qd4 Bd2 Nf6 Qe3 Re1 Rf1 g1B Nd5 g2 Qc3 Be3 Ng1 Ra2 Qb2 Bg7 Nf3 g1R Nc3 Ng4 Ng5+ Kd6 Bd1 Bf5 Bf3 Rf8 Bg2 Ne5 Ne2 Nf3 Bc3 Rh1 Rg1 Bc1 Kb6 Be5 c8R+ Kd7 Bc7 Bd6 Rb8 Qf2 Be5 Qh4 Bd8 Rf6 Qb3 Qc3 Ra1 Ba3 Ka5 Kc6 Rb7 Rf8 Qb2 Rb1 Rd1 Re1 Rd3 Ng1 Rg3 Be6 Rg4 Bc4 Rg3 Bd3 f5 Rg8 Nh3 Rg4 Ng5 Bb8 Bd6 Rf4 e5+ Be4 Nf3 Bd3 Rg6 Kd5 B6c7 Rf1 Ng5+ R1f3 Bb6 Bd6 Bbc7 Rc4 Bb8 Rf4 Bf1 Rg3 Bg2+ Rff3 Ne4 Rf4 Bdc7 Re3 Qc1 Rab2 Ra2 Rb3 Ra1 Bb2 Ra4 Ba3 Bd8 Ra1 Qb1 Ra2 Qc1 Rb1 Qb2 Rf2 Ng5+ Rff3 Bf1 Rf4 Bg2+
1nN1Q1B1/PpK5/NP1Bppn1/P1N5/1R1n3B/4PP1R/k1r2n2/rbb1b2n b - - 0 1 illegal: No proof kernel
4r3/KpNRp1n1/B2p4/pNQPRP2/B2Brn1P/4PnRr/P3bq2/3k2b1 b - - 2 3 illegal: No possible last move
5r2/1b2Pr1R/2p1bN1p/prk1N2P/2P1npP1/P1B5/R3K1Nq/n1RQ1Br1 b - - 2 3 legal: proof: f4 e5 d4 g5 dxe5 gxf4 b4 a6 b5 Qg5 Na3 Qf6 Nb1 Qd8 Nf3 Bc5 Ng1 Ba7 b6 Qf6 bxa7 Qd8 c4 Ke7 e4 f5 g4 d5 h4 b5 a3 d4 e6 Kd6 h5 d3 e7 a5 e8N+ Kc5 e5 c6 e6 b4 e7 h6 Kd2 f3 Qc2 f2 Rh4 b3 Nf6 b2 Nc3 b1B Nh7 Nf6 Bb2 Qd6 Nge2 Na6 Nf4 Rb8 a8R Bb7 Kd1 d2 Qd3 Ne4 Rh2 Nb4 Nf8 Nc2 Ke2 d1R N8g6 Rhf8 Ne5 Qc7 Ra2 Na1 Rh1 Rf7 Qc2 Rd5 Qa4 Rbf8 Qd1 Bc2 Ng2 Qb8 Nf3 Qh2 Ne5 f4 Re8 Rd8 Nd5 Rb8 Nf6 Bb1 Kf3 Bd3 Bc3 Bb1 Bd3 f1R+ Ke2 Rg1 Rc8 Ba8 Rd8 Rb5 Rc8 Bb7 Re8 Rh8 Rg8 Bc2 Rg7 Rhf8 Rh7 Nd2 Bf5 Be4 Bg6 Bd5 Bd3 Ne4 Kf3 Qh4 Bf1 Be6 Ke2 Qg3 Rh3 Qh2 Rd3 Qh4 Rdd2 Qg3 Rdc2 Qh2 Rc1
4b2B/3pnB2/1pqPP1N1/1PQ1RpKp/N2pBR2/r4P1k/r4rPb/5N1n b - - 2 3 illegal: Other
1R4K1/5rp1/q2pP1Qp/1n1P2P1/2RnNp2/pP1Rpr1b/P1B1kBN1/2B2b2 b - - 1 3 illegal: No proof kernel
nQK5/r2Rq2B/3q1P2/2PPPq2/3kr2N/3B3R/3QNrP1/1brQ3r b - - 0 1 legal: proof: b4 d5 c4 c5 a4 g5 h4 b5 hxg5 d4 Bb2 Qc7 bxc5 Be6 axb5 Bc8 e3 Qd8 Bc3 dxc3 Rh3 f5 Ra6 f4 Ra1 f3 Rh2 e6 Rh3 Bd6 Rh1 Bf4 exf4 e5 Rh6 e4 Rh1 e3 Rh3 e2 Rh4 Nd7 Rh1 Nb6 Na3 Nd5 Nb1 Ne3 fxe3 Ke7 Kf2 Ke8 Kg3 Kd7 Kg4 Ke6 d4 e1R b6 a5 b7 f2 b8Q c2 e4 c1R e5 a4 c6 a3 c5 Kd5+ f5 h5+ Kf4 a2 c7 h4 g6 h3 g7 h2 Bd3 f1Q+ Nf3 Nf6 g8B+ Be6 c8Q Nd7 Qb4 Qe7 Bh7 Ra7 Qbd2 Rf8 Qb8 Nb6 Kg4 Qd6 Nh4 Na8 Kg5 Re4 Nc3+ Kc6 Rb1 a1Q Ne2 Ba2 Rb7 Kd5 Rc7 Bb1 Rd7 Rd8 f6 Qf5+ Kh6 Qa6 Kg7 Qb7 Kf7 Qc7 Rf1 h1R Rf3 Qb7 Rh3 Qc7 Qbb2 Rb8 Qb6 Rbb7 Ke8 Ra2 Qbb2 Rba7 Qb8 Rac2 Rd8 Qg7 Rd7 Qf7+ Kd8 Qe7+ Kc8 Rb2 Bc2 Kc4 d5 Rba2 Nf4 Rb2 Bd3+ Kd4 Qa5 Rbe2 Qad2 Rf2 Ne2+
nK1R4/3q1PP1/Qn3PbB/NPq3Q1/3Ppn1n/1Bb5/1N1R1r2/2R2k2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 gxh4 a4 b5 axb5 f5 e4 d5 exf5 Be6 c4 Ra6 cxd5 Rb6 axb6 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 c5 g4 h5 b7 h3 f4+ Kh4 d4 Kg3 g5 Kf2 g6 h2 d6 c4 d7 h4 f6 h3 f5 c3 f7 c2 g7 Na6 b8R Nf6 Qg4 Nc7 Qg6 Na8 Ke6 Nd5 f6 Ndb6 Bd2 c1Q Ra2 Qc5 Nc3 Rh4 Na4 Rf4 Nf3 Bb7 Qb1 Be4 Nb2 Bg6 Qa1 Qe8 Rg1 h1N d8Q h2 Qd5 Ng3 Rd8 h1N Ne5 Ne2 Nec4 Nhg3 Qg5 Nf5 Na5 Nh4 Bg2 Rf5 Rc1 Rf4 Bd5 Qd7+ Ke5 Rf3 Bf4 e6 Bd2 Nf4 Be3+ Ke2 Bd2 Rf2 Be3 Qc2 Bb3 Bb4 Bd2 Bc3 Be3 Qe8 Kd6 e5 Bd2 Qe7+ Kc6 Qe8+ Kb7 e4 Kb8 Qd7 Qe5 Ne6 Bh6 Nf4 Qg5 Qd5 Nd1 Kf1 Rb2 Qc5 Qa2 Qd3 Rd2 Qh3 Qa4 Qd7 Qa3 Qcc6 Qd6 Qc5 Qe6 Nbd5 Qa6 Ndb6 Nb2#
R1N1b3/5PnP/1KQ2RNP/2p1R3/P2qBpkb/4Qp1r/P3B2n/3n4 b - - 0 1 legal: proof: g4 d5 f4 a5 c4 h5 gxh5 e5 fxe5 a4 cxd5 a3 bxa3 Qe7 e6 Qg5 a4 Qd8 e4 g5 e5 f5 Ba3 b5 Bc5 Rh6 Be3 Rf6 Bf4 gxf4 exf6 Ra6 Qc2 Rd6 Qc1 Rd7 Qc2 Rh7 Qd1 Rh8 Kf2 b4 h4 b3 d4 b2 f7+ Ke7 d6+ Kf6 e7 f3 Ke3 c6 e8B Qc7 d7 Qh2 d8R Nh6 d5 Bb4 Kd4 Bd7 d6 Rh7 Qc2 Qh3 Be2 Bd2 Kc5 Na6+ Kb6 Ng4 h6 Qf1 h5 Kg5 Na3 b1N Nc4 Nc3 Ra8 Nb5 Re1 Nf2 Nh3+ Kg4 Nf4 Nac7 Ng6 f4 Qc1 Bc3 Qe3 c5 Rh2 Bc6 d7 Ne6 d8Q Ng7 Qf6 Qg1 Nd6 Be5 Rh3 Nc3 Nc8 Ncd1 Rh1 Bb5 Qc6 Bf6 Rh2 Bh4 Bd7+ Kg3 Bf5 Ng4 Be4 Qf2 Rhh1 Nh2 Rhg1+ Kh3 Rg5 Rh8 Rf5 Kg4 Rf6 Qg1 Qd2 Qd4 Qd3 Rd8 Qe3 Rd6 h7 Rd5 h6 Rh5 Qb7 Be8 Qc6 Nb2 Rc1 Nd1 Rb1 Bg3 Rb2 Rh3 Rd2 Bh4 Rd3 Qa1 Rd5 Qd4 Re5
1NbR4/Q2rPR2/1BBb3b/KPn5/B1PQb1rq/n5k1/1P4P1/N2bn3 b - - 0 1 legal: proof: d4 b5 h4 d5 f4 c5 a4 g5 axb5 e5 hxg5 Qd6 e4 cxd4 exd5 e4 Rh5 Bg7 Rh1 Qe5 fxe5 Bf8 Kd2 Kd7 c4 h5 d6 Ke6 g6 Kf5 d7 Kf4 d8Q f5 g7 a5 e6 e3+ Kd3 h4 e7 a4 Bd2 a3 Nh3+ Kg3 Qa4 a2 Qb4 f4 Qbd6 e2 Ng5 e1B Ba5 h3 Bc7 h2 Ba5 Rh4 Qc6 f3 Ne6 f2 Qe4 Nd7 Qg6+ Rg4 Nc7 Ngf6 g8B Bb4 Nd2 Ne4 Rd1 a1N Nb3 Bh6 Qa6 Ra7 Bd5 Ng5 Be2 f1B Bc6 Bd6 Bb6 Nc2 Na1 Nf3 Qa2 Na3 Na6 Rc7 Nb8 Rb7 Rg1 h1Q Rd2 Qh4 Rd1 Nb1 Qa7 Nc5+ Kc2 Rc7 Rd2 Rd7 Bd1 Be2 Re1 Bf1 Re6 Be2 Rf6 Bf1 Rf7 d3+ Kc1 Na3 Ba4 Be2 Qh8 Ne1 Qd4 Rf4 Rd1 Bf3 Kd2 Rg4+ Kc3 d2 Kb4 Be4 Ka5 Ned3 Rdf1 d1B Rf8 Ne1 Rd8 Bf8 Rf5 Bh6 Rf7
qqN1Q1B1/RbkPPN1N/3RK3/8/2PP1bn1/5r2/3n1P2/n1rnQr1B b - - 0 1 illegal: No proof kernel
3NBR2/P2q1bbk/qb5Q/N1qRPP2/1qP1B2N/5bP1/1QK2n2/2n1r3 b - - 0 1 legal: proof: b4 c5 d4 b5 dxc5 a5 bxa5 g5 g3 e5 Be3 f5 Bd4 exd4 Na3 g4 Nb1 f4 gxf4 g3 f5 g2 Qd3 Ra6 Qd2 Rg6 Qd1 Rg3 hxg3 Be7 Rh2 Bd6 Rh1 Bf8 Kd2 Kf7 f4 Kg7 e4 d5 c4 h5 a4 b4 e5 d3 c6 d4 a6 b3 a5 h4 c7 b2 a7 h3 a8Q h2 a6 Qd6 f6+ Kh7 f7 Nd7 f5 Nc5 a7 Be6 c8B Nf6 Qdf3 Nfe4+ Kd1 d2 Qf2 Nd3 Bd7 Qa6 Be8 Bg7 Ra3 Nc1 Nf3 g1B Bg2 Bd5 Qe3 Nf2+ Kc2 Be6 Rd3 d1B+ Kd2 Bd5 Nh4 B1f3 Qb7 Be6 Kc2 Bed5 Rd1 d3+ Kc3 Be6 Nd2 b1Q Nb3 d2 Na5 Qb4+ Kc2 Qc5 Qb2 Qb4 Bc6 Rd8 Be8 Rd3 Qf4 Re3 Qg5 Re1 f8N+ Kh8 Nd7 Kh7 Nb8 Bf7 Qf6 Ne4 Qd6 Bb6 Nbc6 Nf2 Nd8 Qc5 Bf1 Qb4 Bd3 Qc5 Be4 Qb4 Rf1 h1Q Rg1 Qg2 Rh1 Qg1 Qh6+ Kg8 Qf6 Nh3 Ng6 Qgc5 Qg5 Nf2 Rh2 Bf8 Rh8+ Kg7 Rg8+ Kh7 Nh4 Bg7 Rf8 Rg1 Re1 Rf1 Re3 Re1 Rd3 d1Q+ Kb1 Qda4 Rd5 Qa4b5 Kc2 Qd7 Qh6+
3qb3/R1Nk1R2/5PP1/rb1PB3/r1P2Nnp/nb4N1/Bb2P3/1nQ2QK1 b - - 0 1 illegal: No proof kernel
r1q5/BPB5/3rPKPq/Nn6/2qN1NQ1/1p5P/qk1R1PQ1/bbR2n2 b - - 0 1 illegal: No proof kernel
3r3R/RPnB1nqq/3k1PNb/3RN3/PQpQ3n/7n/5bPP/3KB2q b - - 0 1 illegal: No possible last move, all moves rejected
4b3/2pN3k/R1P2PR1/b1b1P2B/Qb5r/1n1r1B2/1PQr1bP1/1KNQ2n1 b - - 0 1 illegal: No proof kernel
Br2Q1nq/P1b2P2/Q1P3b1/k1b4p/1p4P1/q1n3rB/3PBR1R/N3N2K b - - 0 1 legal: proof: h4 f5 b4 a5 bxa5 c5 e4 d5 exf5 g5 hxg5 d4 Ba3 d3 Bb4 cxb4 Bxd3 Qd5 Bb5+ Kf7 Ba4 Qd6 Bc6 Qc7 Bd7 Qd8 Kf1 e5 a4 Ke7 f4 Kd6 c4 Kc7 f6 h5 g6 b5 f5 b3 a6 Kb6 c5+ Ka5 g7 e4 f7 e3 c6 b2 f6 b4 a7 Qe7 Nf3 e2+ Kg1 e1B Qe2 Bb7 Bh3 Ba6 g4 Qe6 Na3 b1Q Rh2 Qe3+ Kh1 Qed3 Nc2 Bc5 f8Q Qb2 Qfe8 Bg3 Rf1 Qda3 Rff2 Bd3 Nfe1 Na6 Na1 Bg6 f7 Rd8 a8B Nc7 Qc4 Nd5 Qa2 Nh6 g8B Bc7 Bh7 Nc3 Qc4 Rd3 Qa2 Kb6 a5+ Kb5 a6 Ka5 a7 Rg3 Qc4 Rf8 Qce2 Ng8 Qd3 Na2 Qf1 Qh8 Qc4 Nc3 Qa2 Bc2 Bd3 Bb1 Be2 Bg6 Qe7 Rb8 Qe8 B5b6 Qc4 Bc5 Qa6#
3bR2b/kN1rP3/r3R3/1PQ1Rrqn/rr1PB2p/2P1Pp2/1BKQ4/N7 b - - 0 1 legal: proof: f4 b5 h4 c5 a4 g5 c3 e5 fxe5 b4 Ra3 Ba6 Ra1 Bb5 axb5 gxh4 Na3 d5 Nb1 Nd7 Ra4 Nb6 Ra1 Na4 c4 Nc3 cxd5 c4 Ra2 Na4 Ra1 c3 Na3 c2 Nb1 Nc3 bxc3 Qb8 Kf2 Qd6 Ke1 Qd8 d4 Kd7 Kd2 Kc7 g4 Kb6 g5 h5 d6 f5 d7 a5 g6 a4 g7 f4 e6 b3 Bg2 b2 Bd5 h3 Bb7 h4 Bc6 h2 Be4 a3 Nh3 a2 Re1 h1R Ng5 Nf6 g8R Rh7 Na3 b1R Bb2 c1B+ Kc2 Ra6 Nf7 Nh5 Nd6 Ka7 Nb7 Bg7 Qd2 Rf1 Re8 Qg5 d8Q Bh8 Qd5 Rd7 Qc6 f3 Qd5 Rg1 Qf5 Rg4 e7 Rf4 Qe5 Rf5 Qc5+ Rb6 Qd3 Bf4 Qd2 Bg3 e3 Bc7 Rg1 Bd8 Rg4 Qf6 Rg6 Qg5 Re6 Rg1 Rf1 a1R Rf2 Rgb1 Rg2 Qf4 Rgg6 Qg5 Re5 Ra2 Rge6 Raa1 Bc1 Rb4 Bb2 Ra2 Nc4 Ra3 Nca5 Ra2 Nb3 Raa4 Qc8 Rc6 Na1 Rca6 Qc5+
2Q1NbB1/P2P3P/3q2qn/P1r1kr2/1Kp3R1/2n1bPNB/R3NpQp/8 b - - 0 1 illegal: No proof kernel
2K5/Rp1Qp2P/1r2PQb1/5p2/3b1NNq/B1P1qP2/1PR1R1qB/1n3k1r b - - 0 1 legal: proof: g4 c5 d4 h5 gxh5 Nf6 dxc5 Ng8 Na3 Qc7 Nb5 Qb6 Nxa7 Qd8 a4 Rh6 a5 Rh7 a6 Rh8 c3 d5 Bg2 d4 Be4 d3 Nb5 Rh7 a7 Rh8 axb8Q Ra5 Bd5 Ra2 Bb3 Ra8 Bc2 dxc2 h4 g5 e4 f5 Ke2 Kf7 Ke3 Kf6 f3 g4 Kf4 g3 h6 g2 e5+ Ke6 c6 Qc7 h5 Qa5 h7 Qd8 c7 Ra3 h6 Qe8 Nd6 Ra4+ Ne4 Nf6 Be3 c1Q Rh2 Ra7 Qd7+ Kf7 Ne2 Kg6 Nf2 g1Q Ng4 Ne4 Rb1 Qd2 Rc1 Qg2 Rc2 Ra6 Qa8 Rd6 Qa6 Bg7 Qb6 Qd3 Bc5 Nd2 Ba3 Nb1 Qa6 Qf7 Qb6 Qf6 Qd4 Rg8 h8B Qh4 h7 Kh5 Qb6 Rh6 Qf6 Rf8 e6 Rd8 Ke5 Qe3+ Kd5 Qgg1 Qd4 Qg2 Kc5 Be5 Kb6 Bf6 Qa4 Bd7 c8R Be8 Kc7 Rd6 Ra8 Rb6 Ra7 Bg6 Kc8 Be5 Qdd7 Bd4 Qa5 Kg5 Qe5 Kh5 Nc1 Kg5 Qf6+ Kf4 Nd3+ Kg3 Nf4 Rh5 Rh1 Rh6 Re1 Rh5 Ree2 Rh6 Ne5 Kh2 Ng4+ Kg1 Bg7 Kf1 Bh8 Qg5 Bg7 Rh1 Bh6 Qh4 Bg5 Qhh2 Bh4 Qhh3 Bg3 Qh4 Bh2
7Q/Ppbbp3/4rPqk/r1R2p2/NQ1NPP2/n1q1PKQ1/q6B/6RB b - - 0 1 legal: proof: g4 d5 h4 g5 hxg5 a5 b4 axb4 e4 f5 c4 Kd7 g6 Ke8 g5 Nd7 cxd5 Ndf6 gxf6 Qd6 Ba3 Qf4 Bc1 Qe3+ dxe3 Ra5 Qd3 Ra4 Qd1 Ra8 Ke2 h5 a4 c5 g7 Kf7 d6 Kg6 d7 h4 d8Q h3 f3 c4 a5 b3 a6 h2 Q8d7 c3 Qc6 b2 Qd8 c2 Qc5 Nh6 Qcd5 Ng4 g8Q+ Kh6 Ra5 Bd7 Rc5 Ne5 Qg3 Nc4 Bg2 Na3 Nc3 b1Q Na4 Qa2 Bb2 c1Q Qd4 Qc3 Qb4 Bg7 Qc8 Rd8 Kf2 Bf8 Ne2 Bg7 Rd1 h1Q Nd4 Qh5 Rg1 Qg6 Bh1 Bf8 Qcb8 Rc8 Kg2 Rc6 Qc8 Re6 Qb8 Kh5 Kf2 Bh6 Qh8 Qh7 Kg2 Bf4 Kf2 Bc7 a7 Rd8 f4 Kh6 Kf3 Rg8 Bc1 Rc8 Bd2 Rd8 Qhg8 Qg6 Be1 Bc8 Bf2 Rd5 Qd8 Bd7 Qh8+ Qh7 Qg4 Rde5 Bg3 Rd5 Bh2 Rde5 Qb8 Qg6 Qg3 Rd5 Rc6 Rb5 Rc5 Ra5 Qh8+
3nnbbB/5kpR/2NB2nP/p5N1/1r1p3r/2P2K1P/2P1QPRQ/4R1b1 b - - 0 1 illegal: No proof kernel
3r1rN1/3bK3/P1p1n3/1pR2P2/2QP1nPp/1k1BN3/2NQRn1P/3bn1B1 b - - 0 1 legal: proof: f4 d5 b4 g5 c4 f5 cxd5 a5 e3 axb4 Bd3 Bg7 Bf1 Be5 fxg5 f4 Ke2 f3+ Ke1 Bf4 exf4 Be6 Qb3 Bd7 Qd1 Bc8 Kf2 Kd7 Kg3 Kd6 Kh4 Kc5 g4 h5 a4 e5 d3 b5 a5 b3 d4+ Kb4 a6 e4 f5 b2 d6 c6 d7 f2 Qc2 e3 Na3 b1N Nh3 e2 Be3 Ne7 g6 Qg8 Kg5 h4 Kf6 Nc3 d8Q Nd1 g7 Ng6 Rc1 Nf4 Ke7 Nd7 Qd2+ Kb3 Rc5 Qc4 Nc2 Nf8 Qd5 Bd7 Rg1 e1N Rg2 Rc8 Bd3 f1B Bg1 N8e6 Nf2 Rhf8 g8N Rb8 Be2 Rbd8 Bd3 Nb2 Nd1 Be2 Nde3 Bf3 Be4 Nbd3 Rf2 Bd1 Re2 Nf2 Bd3 Kb2 Qh1 Ka2 Qd5 Kb3 Qxc4+
1NB1nq2/P4pP1/PP1n2kQ/q2p2q1/1Q6/bpR4Q/1P1nR2B/2KN1r2 b - - 0 1 illegal: No proof kernel
3R1q2/1K2Pr1P/1Q2b1N1/R1N3Pn/2kr2PB/2bR1nP1/nb1r2r1/2Q3rB b - - 0 1 illegal: Other
1rb2k1N/8/QR2P1q1/K3R1Q1/1R1P1r2/PqNPn1qP/3brB1r/r2n1B2 b - - 0 1 legal: proof: g4 d5 f4 a5 b4 axb4 c3 h5 gxh5 e5 fxe5 d4 cxd4 Qe7 Ba3 Qd6 Bc1 Qd8 e4 b5 a3 c5 h6 g5 d3 f5 Kd2 b3 Kc3 f4 h7 b2 e6 g4 e5 f3 e7 b4+ Kc4 f2 Kb5 c4 Nc3 b1Q Nh3 g3 Qe1 g2 Na4 g1Q Qe2 c3 Be3 c2 Nc5 c1R Qc2 b3 Bf4 b2 Ra2 Na6 Qe2 Qd6 Qe4 Qg3 Qd5 Bh6 Ka5 Nf6 Na4 Ng4 Ng5 Ne3 Nf7 Re1 Nc3 Nd1 Be3 Qdg6 Qd6 Nb4+ Qa6 Re2 h3 Nc2 Rg1 Rf8 h8Q Rb8 Qg7 Bg5 Nh8 Rf4 Ra1 Qa2 Rh1 b1R Qh6 R1b4 Rb1 Rb2 Qh4 Bh6 Qg5 Qaf7 Rg1 Ra2 Rb4 Qb3 Bg2 f1R Bf2 Rfe1 Bf1 Nce3 Rb6 Ra1 Rh1 Rb2 Rh2 Ree2 Rh1 Kd7 e8R Rba2 Re7+ Kd8 Reb7+ Ke8 e6 Kf8 Rb4 Rab2 R7b6 Rbc2 Bg2 Rcd2 Re1 Rc2 Bf1 Rb2 Bg1 Rh2 Bf2 Re2 Qg4 Bg5 Qh5 Bh6 Qg5 Nf5 Kb5 Rb2 Qh5 Re4 Re3 Re2 Qh4 Rg4 Re5 Bd2 Ka5 Rf4 Qg4 Nfe3 Qg5
q1Qb1b1n/qnQ2bP1/q1PP3R/2N2rN1/P2k4/b4P2/1B3n2/1KRr1B1B b - - 0 1 illegal: No possible last move, all moves rejected
n4nNb/k2Pn2b/R2bQ2R/2Bq4/1r1Qqr2/KPP2bN1/4PP2/3R2qB b - - 0 1 illegal: No proof kernel
2r1B3/P4nPn/nQR1P2R/7q/q2bK1R1/P1N2P1Q/1r3N1n/B1r1kb1q b - - 0 1 illegal: No proof kernel
1K3n1B/1Q1P1n1n/N2r1b2/bPQ3P1/3qNPk1/1Bb4R/1b3PRr/2bN3b b - - 0 1 legal: proof: h4 d5 c4 dxc4 a4 g5 hxg5 b5 axb5 f5 e3 f4 exf4 Bf5 Rh3 Be6 Rh1 Bc8 Ke2 Kd7 Ke3 Ke6 Ke4 h5 g4 c5 b4 a5 d4 c3 g6 a4 g5 a3 g7 c2 b6 h4 b7 c4 b5 h3 Be2 a2 Qe1 h2 Be3 c1B Bd1 c3 Na3 c2 Qf1 Ra6 Bf3 Nd7 b8N Nh6 g8Q+ Nf7 Bd2 Bg7 Qf8 Bf6 Qg2 Bb2 Ne2 c1B Ng3 Rd6 Nc2 Rh4 Rg1 h1N Ne3 Rh2 Bd1 Ba6 Rb1 a1B Bc3 Qb6 Qc8 Bb7+ Qc6 Qa7 Na6 Nf8 Qf3 Qc5 Rg2 Qb4 Bb3+ Qc4 Ba5 Bc3 Nd1 Bab2 Ra1 Ba8 Ra3 Qd5+ Kd3 Bb7 Qc5 Bc6 Nh5 Kf5 Bb6 Qe5 Kc4 Ng3 d5 Qe3 Bd8 e5 Bc7 e4 Bb8 Re6 Be5 Rd6 Bd4 Qd2 Be5 e3 Bd4 Bd8 Bh8 e2 Qe4+ Kg4 Qe7 e1B Qb7 Rg6 d6 Bdf6 d7 Bf3 Qba7 Ba8 Qb7 Qe3 Kd5 Qd4+ Kc6 Ba5 Qb6 Bec3 Kc7 Rh6 Kb8 Rg6 Q7c7 Bf3 Qbb7 Rh6 Rg1 Bh1 Qc5 Rg6 Rf1 Ne4 Ng3 Be7 Rg1 Nf6 Rg2 N6h7 Ra2 Rd6 Ra4 Qe3 Re4 Bed8 Re6 Qd2 Rh6 Bdf6 Rh3 Qd4 Ne4+
1Kn1B1b1/1b3brn/Q1qnPN2/4N1b1/Q4PPb/R2nB1k1/P1P4R/1r1N4 b - - 0 1 illegal: No proof kernel
N2qk3/rnB1Pn1K/2rP1QP1/2bB2R1/5n1B/2PRr3/nPb1N1Q1/2qr4 b - - 0 1 illegal: No proof kernel
2Kn1q2/R4R1n/1rb3p1/1R2QPN1/3Q1B2/1P1q1PbP/B4NrP/nr1k1q2 b - - 0 1 legal: proof: d4 b5 e4 h5 a4 f5 axb5 c5 exf5 cxd4 Bd3 h4 Bf1 h3 gxh3 Rh4 Ne2 Rh5 Ng1 Rh8 Ke2 Kf7 Kf3 Kf6 Kf4 e5+ Kg4 d5 c4 a5 b6 d3 b3 d2 f3 a4 c5 a3 c6 d4 b7 g6 c7 e4 Bc4 Ke5 Bd5 a2 Nc3 e3 Qe1 d1Q Qf1 e2 Be4 e1Q Qd3 Qf1 Nge2 Bd6 Nf4 Bd7 c8R Nf6+ Kg5 Qf8 Ne6 Nc6 b8Q Nd8 Rc7 Bc6 Rf7 Ra5 Qc4 Qdd3 Nd1 Rg8 Nf2 Nh7+ Kg4 Ra6 Ng5 Rb6 Be3 Rh8 Rd1 a1N Qa4 Qde2 Bb1 d3 Ba2 d2 Bf4+ Kd5 Qaa7 Kd4 Qa4+ Kc3 Qd4+ Kc2 Rg1 Be7 Qbe5 Bd6 Re1 Qe4 Re3 Kc1 Rc3+ Qc2 Rc5 Bc7 Ra5 Qd3 Rb5 Kc2 Kh4 d1R Rg4 Rb1 Kg3 Nf6 Rh4 Bd6 Rhh7 Bc7 Rhg7 Rh4 Rh7 Bb8 Ra7 Bd6 Rhf7 Nh7 Qee4 Nb7 Be5 Rh6 Kf4 Nd8 Qed5 Bc7 Bd6 Bb8 Ke5 Rh4 Q5e4 Rg4 Qee3 Nb7 Ke6 Rg2 Bg3 Bf4 Qee5 Kd2 Re7 Nd8+ Kd6 Qe1 Kc7 Qf1 Kc8 Kc2 Nh1 Kd1 Rf7 Be3 Bf4 Bf2 Ra4 Be1 Raa7 Bg3 Nf2+
Q3K1kr/8/nP1q1QBN/bP1P1P2/N1bpn3/2b1BB1q/RP3n2/2r1Rr2 b - - 0 1 illegal: No proof kernel
6n1/kq1q1BrP/bR2bRr1/B1QP2Pp/N3n3/N1N1QPbq/2K3P1/6n1 b - - 0 1 illegal: No proof kernel
4b3/Q3rPr1/q1B1n1qq/1N6/1bPR2P1/P4p1R/QPN2K1n/b2k1nBR b - - 0 1 illegal: No proof kernel
q2n2K1/kq1P3N/1Qb5/2rQbpP1/3R2nP/1r1q1r2/1PB3PB/N2RQ1n1 b - - 0 1 illegal: No proof kernel
2N1Q1q1/1QP1KP2/5R2/2Nbkqp1/1nRB4/3rn1PB/1Pb1q1Pr/n2b1R2 b - - 0 1 illegal: No possible last move, all moves rejected
1B3n2/1p1N3B/qPqnb1n1/1R1QPQ2/3bP1PQ/7P/R2q1rkr/1K1N1b2 b - - 0 1 illegal: No proof kernel
3bQbKn/R2P4/1B2N1Np/2q3Pn/2nnkrPn/1N1P4/P2rB3/Q3Rb2 b - - 0 1 illegal: No possible last move, all moves rejected
K3k1bn/QP2B2R/BQ2n1nP/1rB1P3/2n4b/P4Rp1/nr2P3/1qN2N1b b - - 0 1 illegal: No proof kernel
1bnq4/1R1BN2K/8/PP2bnrk/Q1q3r1/P2Pb1Qp/P1q1Q3/R1NbB3 b - - 0 1 illegal: Other
8/NB2Qpq1/3P3k/n1bKP2q/1R3R2/Q1P1brrB/1P1nNPn1/B4q1n b - - 0 1 illegal: Other
5b2/2P4b/NP3P1n/1q2N2B/2nk1n1P/rbpq2BP/nQr1R3/K2RQ2R b - - 0 1 illegal: No proof kernel
Rbr3n1/1b2PN2/PP5k/1BQ1R3/4r1QK/B2P1qNp/1P2n3/r1rr2rQ b - - 0 1 illegal: No proof kernel
1q2Q1R1/BPP3bb/2BQ2bP/k1Q5/2rrNR2/5NP1/b1P1Kpnn/b1b5 b - - 0 1 illegal: No proof kernel
6b1/nKnQqBP1/Qb2R1P1/Pb2PB1n/Nn5p/3bN1r1/4PB1r/6Rk b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 c5 d4 e5 dxc5 Ra7 fxe5 Ra8 b4 axb4 Kd2 Ke7 Ke3 Ke6 Ke4 b5 a4 d5+ Kd4 Kf5 c4 Kg4 g3 f5 a5 h5 g6 b3 c6 b4 c7 f4 c5 f3 c6 b2 Bg2 b3 Ra4 f2 Qf1 Bc5+ Kd3+ d4 Ke4 d3 Qd1 f1N Nf3 d2 Ng5 Ba6 Na3 b1B+ Nc2 b2 Ne6 Bb6 c8B Bb5 c7 Ne7 Nc5+ Qd7 Rg1 Nbc6 Rd4 Nb4 Rd6 Nec6 Re6 Qe7 Na4 Na7 g7 Ba2 Bf3+ Kh3 g4 Kh2 g5 b1B g6 Rb8 Rg2+ Kh1 Bd7 Rbd8 c8Q Bac4 Be8 Rd3 Bg4 Rg3 Qa6 Bba2 Bf7 Bd3+ Kf4 Bac4 Bf5 Ba2 Ne3 Bac4 Qe1 d1N Qd2 Nc3 Qd1 Ba2 Bd2 Bb3 Be1 Bd5 Bf2 Bd5c4 Be4 Ncd5+ Kf5 Nc7 Kf4 Rh3 Bf5 Rh2 Qd2 Ng3 Kf3 h4 Kf4 Rh5 Kf3 Bc2 Qd7 Rg5 Kf4 B2b3 Kf3 Nh5 Ke4 Na8 Bg1 Rg3 Bf2 Bd8 Kd4 Nc7 Ke4 Bd3+ Kd4 Qf6 Kc5 Qe7+ Kb6 Bb3c4 Kb7 Ba2 Be8 Bac4 Rf6 Bg8 Bf7 Na8 Rc6 Bb6 Re6 Nc7 Rg1+
nb3KB1/P1N5/n2rQp1N/2rPrQP1/Bb2P1P1/3RR2r/3b3k/2q3Bb b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 Bd6 bxa5 Bf8 c4 dxc4 Kf2 Kd7 Kg3 Ke6 Kg4 c5 Kh5 Kf5 d4 b5 a4 b4 g3 c3 e3 c4 a6 f6 e6 b3 e7 c2 e8B b2 a5 c3 a7 Na6 Ne2 Qc7 Bg2 Bb7 Ra3 Rc8 a8Q Bb4 Bec6 Ne7 Kh6 Kg4 Kg7 h5 Qf1 h4 Rh3 Rhd8 Bgd5 Rd6 Ba4 Bc6 Bf7 Bh1 e4 Nd5 Be3 c1B Qc6 c2 Bf2 Bf4 Rd3 c1B Na3 b1R Nb5 Nb6 d5 Bcd2 Ned4 Rc1 Re3 Na8 Nf5 Re8 Rd3 Re5 Kf8 Rc2 Bg8 Rc5 Qe8 Qc6 Qe6 Qc7 Rd4 Kf3 g4+ Bg3 Nh6 Kf4 Rh2 h3 Rd3 Qc6 Rg2 h2 Rg1 Bg2 Nc7 h1R Re3 Rh3 Rd3 Bh1 Rg2 Nb8 a6 Bh2 a7 Na6 Rd4 Kf3 Rg3+ Kf4 Rb3 Bg3 Rdd3 Bh2 Be3+ Kg3 Qff5 Kg2 Bf2 Bg3 Qh7 Kh2 Ra3 Qb5 Re3 Qc4 Qhf5 Qc1 Rad3 Rdc6 Qe7 Ree6 Ne8 Bb8 Nc7 Re5 Qee6 Rd6 Bg1+
2q1QK1k/1b2P2P/3n4/2Q2Nb1/1R2bN2/1PbB1p1N/P1qrrPbB/4b1R1 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 b3 Kd2 b5 Nh3 b4 Na3 b2 Ng1 b1B Nc4 b3 Ke1 b2 Nd2 Nc6 Nb3 Na5 Nd2 Nb3 cxb3 Ra6 Bh3 Ra3 Bf1 Ra8 h4 c5 e4 d5 Ke2 g5 Ke3 f5 e6 c4 Kd4 c3 Ke5 c2 e7 Kf7 e8N d4 h6 g4 h7 g3 h5 d3 h6 g2 Nc4 f4 Rh4 d2 Qg4 d1B Ne2 g1B Bg2 Bb7 Qc8 Bh2 Ng1 Nf6 Ne3 Bb4 Qc5 Bf3 Nh3 Qc8 Kd6 Be1 Ng7 Re8 Bf1 Bg2 h8Q f3+ e5 Ra4 h7 Rd4+ Nd5 Rd2 Be2 Bf4 Bd3 Bg5 Nf5 Kg6 e6 Ne4+ Ke5 Nd6 Rb4 Re7 Nh4+ Kh6 Qe8 Kg7 Ndf4 Qa8 Qa4 Qc8 Nf5+ Kh8 Qd7 Re8 Qdc6 Bf6+ Kd5 Bc3 e7 Re2 Bd2 Rd8 Be3 Rd7 Ke6 c1B Qa4 Bc2 Qac6 b1Q Q6b5 Ne8 Kf7 Rd5 Kf8 Nd6+ Qe8 Bc1d2 Bb5 Be4 Bd3 Qc2 Rb1 Bf6 Bd4 Bc3 Be5 Rd4 Ne6 Rd5 Bh2 Bg5 Rd1 Bed2 Rh1 Be1 Rg1 Rd4 Nef4 Rd5 Bc4 Rdd2 Bd3
7N/RpQ4r/rP4RN/2n1K1n1/rRP2P2/3bb1P1/PQ2rn1B/bBk1n3 b - - 0 1 illegal: No proof kernel
nkBB3q/3pPQRb/3n1QrP/4n3/1R2b2r/BK1PP2N/3NP2p/r1b5 b - - 0 1 illegal: No proof kernel
qn2R1K1/B3Q3/3P3P/5rpN/N2B1nrP/pQ1Pr3/k2nPb2/q2B1R1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 exf4 a4 Nf6 axb5 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 a5 d3 g5 h6 c5 b6 f5 b7 f3 b3 f4 Bh3 f2 Nc3 f1R Bg4 a4 Be6 c4 Bb2 f3 Nh3 f2 Nf4 Ne7 Kf6 Ng6+ Kf7 Bc5 d6 Re8 Nh5 Nf4 Qd2 Rg1 Qe3 Rg4 Rhf1 Ra5 Rac1 a3 Na4 Bb6 Bd4 c3 Bd5 c2 Qe7 Rb5 Rb1 c1Q Kg7 Nc6 b8B Bb7 Ba7 Qa8 Bg8 Qb2 Rbc1 Nb8 Rc8 Qa1 Kh7 Rf8 Re8 Rbf5 Bc4 R8f6 Kg8 Re6 Bd5 Re3 Be6 Kb5 b4 Bh1 Bb3 Bc5 Re1 f1N Bd1 Nd2 Rf1 Ka6 b5+ Ka5 b6 Kb4 b7 Bb6 Bc2 Bc5 Bb1 Kb3 Bc2+ Ka2 Bd1 Nd7 b8Q Bb6 Qb7 Nb8 Bh8 Re6 Bb2 Bf2 Bbd4 Re3 Qb3+
2BNR1r1/3p1QnP/Rp1b3K/2Qq3R/PPr5/N4n2/P3kP1B/nb4qq b - - 0 1 illegal: No proof kernel
3r1q2/1Bnp2PK/Q1BBb1rp/r1PP3q/1N1QRP2/k1nbRP2/8/4N2q b - - 0 1 legal: proof: h4 c5 b4 g5 e3 gxh4 a3 f5 Bb2 b5 Bc1 f4 exf4 Bg7 bxc5 b4 Bd3 b3 Bb5 Bc3 Bf1 Bb4 axb4 Kf8 Nc3 Kf7 Nb1 Ke8 Ke2 a5 Kf3 e5 Kg4 Ke7 Kh5 h6 Kg6 e4 g4 b2 d4 h3 c4 e3 b5 e2 g5 e1Q d5 h2 c6 Kd6 b6 Kc5 c7 Kb4 b7 a4 Nf3 a3 Qd4 a2 Nc3 Qd1 Ne1 Ka3 f3 Na6 b8Q Nf6 Qbb6 Ne4 c5 Rf8 Kh7 Rf6 g6 Qf8 g7 Rg6 Bb5 Rb8 Rg1 h1Q Bc6 Qh5 Rg5 Bb7 c8B Nc7 Re5 Ba6 B8b7 Rd8 Re6 Bd3 Qa6+ Kb3 Re7 b1B Bb2 Bbc2 Rb1 a1R Na2 Nc3 Nb4 Ra5 Re3 Qc1 Ba1+ Ka3 Rb2 Bb1 Rbe2 Bf5 Re4 Be6 R2e3 Bd3 Qdc4 Nb1 Be5 Nc3 Qd4 Qa1 Bd6 Qb1 Ng2 Qbh1 Ne1
N4qqk/1PP4n/2qp1pbr/Pb2RQN1/Bn3R1P/3B1P2/n2K4/2Q2rB1 b - - 0 1 illegal: No proof kernel
4R1b1/Pb5N/kp1q1PR1/2N1qrnK/1p6/qPB1b2n/rB1R1PQP/7Q b - - 0 1 legal: proof: e4 c5 g4 h5 gxh5 f5 exf5 a6 d4 Nh6 dxc5 Ng8 Bb5 axb5 Ke2 g5 Kf3 d5 Kg4 Kd7 a4 Kc6 c4 e5 a5 b6 h6 Kb7 h7 d4 c6+ Ka6 c7 d3 c5 b4 c6 e4 Ra3 d2 Qe1 d1B+ Ne2 e3 Nc3 Nh6+ Kh5 g4 Ra2 g3 Ne4 g2 Rf1 g1Q Nf6 Bb7 c8Q Qd6 c7 Qgg3 Rg1 Bb3 Nf4 e2 Nd3 Bg8 b3 Nf7 Bb2 Qge5 Rg4 Nd7 Qh1 e1Q Rg6 Bh6 Qg2 Ra7 Qa8 Qa1 c8R Ng5 Re8 Nc5 Qh1 Nce4 Nc5+ Kb5 a6 Nh3 Bc3 Be3 Rd2 Neg5 Qg2 Qa3 Qh1 Bc8 Qag2 Bb7 Bb2 Bf7 Bc3 Rf8 h8B Bg8 Nh7 Ra8 Nd3 Rc8 a7 Ka6 Bb2 Rc2 Bc3 Ra2 Bb2 Qg3 Bhc3 Rf7 Bd4 Qge5 Bdc3 Rc7 f6 Rc4 Kh6 Rf4 Kh5 Rf5 Nc5+
2Qqqb1K/PnRPPk2/rN1p2P1/1Rb3Bp/1B2n1b1/4Rr2/3P1NQ1/7q b - - 0 1 illegal: No possible last move, all moves rejected
3b2KN/Q1Rr1rn1/1NR1p1pr/nP4PP/b1B3Pr/2k3P1/Q2N4/B1q2r2 b - - 0 1 illegal: No possible last move
2b2k2/1N4P1/1qn1QpRK/2rnRP1N/1b3rPB/2pP1rP1/r2Q4/1r3N1B b - - 0 1 illegal: No possible last move
8/nK6/R3QprB/1RbPN1Nn/r2k4/Qp3QrB/2PP1nPP/1bn2q2 b - - 0 1 illegal: No proof kernel
b4kn1/4P1bK/1P3BrP/1Qrp1q2/rP1N2B1/n1R5/1r1R1RpP/2Nn2Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 cxd4 a4 e5 fxe5 Rh7 axb5 Rh8 Kf2 a5 Kg3 g5 Kg4 d5+ e6 d3 Kf5 g4 c4 a4 e4 d2 b4 f6 Kg6 a3 c5 a2 h6 f5 b6 g3 e7 g2 e5 f4 c6 f3 c7 f2 Ne2 Na6 Nbc3 Qd7 Nd4 Bb7 Bb2 Rc8 Be2 f1R Bg4 Bg7 Nce2 Rf2 Qg1 d1N Nc1 Ba8 Rb1 a1R Bc3 Rf4 Rb2 Ra4 Rd2 Re4 Rf2 Re2 Ba1 Rb2 Rd2 Rd8 c8R Nc7 Rf2 Nb5 Rc3 Rc8 Rd2 Nf6 Rf2 Rg8 Rd2 Ne4 Kh7 Rc5 Rf2 Na3 Rd2 Qb5 Rf2 Qf1 Rd2 Kf7 e6+ Kf6 e8Q Qf4 Qc8 Ke7 Qa6 Kf8 Qd3 Bh8 Qb5 Rg6 Qe1 Bf6 Rf1 Qf5 Rff2 Be5 Qg1 Nf6+ Kh8 Ng8+ Kh7 Bf6 Rg3 Qf3 Nc6 Ra2 Bc3 Bh8 Bf6 Rb2 Nd4 Qf5 Rc3 Bg7 e7+
1R4r1/k1P4B/2NpPprr/B4Q1b/1n4P1/b3R2P/b1PN2KB/1Qq2rn1 b - - 0 1 illegal: No proof kernel
R3r3/1q1bbNk1/1N1q1PPn/1B4n1/1QP1N1Q1/1Pnp3p/n5P1/B3K1Rr b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 Na6 exf5 Nb8 d4 cxd4 c4 Kf7 f4 h5 b3 a5 g6+ Kg7 b6 d5 b7 e5 Nh3 e4 Nc3 e3 Nb1 h4 Bd2 d3 Rg1 a4 Nf2 e2 Ra3 d4 Ra1 a3 Nh3 a2 Bc3 Nc6 b8Q Nh6 Nd2 Bd7 Ne4 Be7 Nhg5 Nb4 Nf7 h3 Qb6 Re8 Bb2 Qb8 Qa5 Qd6 f6+ Kf8 f5 d2+ Kf2 e1N Qg4 d3 Be2 Ra6 Bf3 d1N+ Kf1 Nc3 Qb5 Nec2 Qb8 Nd4 Ke1 Ne6 Qb6 Nc6 Qb4 Ng5 Nc5 Nd4 Bc6 Nde2 Bb5 Nc1 Ne4 Raa8 Nh8 Ra5 f7 Kg7 f8N Ra3 Nf7 Ra7 Nh7 Ra3 Nhf6 Raa8 Rb1 a1Q Nd5 Qa7 Ra1 Qb7 Ra4 Na2 Nb6 Rac8 Ra8 Rc5 Kd2 Re5 Ba1 Re6 Nf2 Re1 Ne4 Rf1 Rh1 Rf3 Rb1 Rf1 Rd1 Rh1 Rg1 Rc8 Ke1 Re8 f6+
b3Rn1N/Q1bkPnq1/1r6/1R1bPp2/2NBPN2/p3KBP1/Qq1P2b1/3r4 b - - 0 1 illegal: No proof kernel
1R4K1/2N1PnPr/b1P1q1qR/b1qB3p/4rQ1P/1P4N1/Bpk1nq2/6QB b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 dxe5 c4 axb5 c3 b3 Qc7 Ba3 Qd8 Bb2 cxb2 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 a5 c4 d6 g4+ Kf4 e4 Ke3 g6 f5 g5 a4 e6 a3 b6 f4 e7 a2 e8B f3 g7 h6 g6 f2 c5 Nc6 e5 Qe7 b7 Nd4 b8Q Ba6 e6 Ne2 c6 Rh7 Bg2 f1Q Na3 Qf2 Nb5 Qa7 Qb1 Kd2 Nc7 Qae3 Qf1 Kc2 e7 Qc5+ Ke6 d5 Bf3 d4 Kf7 d3 Qb4 d2 Qf4 d1Q h3 Nc1 Ne2 Qd7 Ng3 Ne2 Qg1 Qg4 Rd1 a1Q Rd8 Qb1 Rb8 Ra7 Bg2 Rb7 Bd7 Rb4 Bf5+ Re4 Rh2 Qbe1 Bh1 Qb1 h4 h5 Rg2 Qfe3 Rf2 Qe1 Rf1 Q1f2 Rd1 Qg5 Rd6 Nh6+ Ke8 Rh8 g8B Rh7 Bd5 Bg7 Rf6 Bh8 Kf8 Nf7 Kg8 Bg7 Rd6 Bc3 g7 Ba5 Rh6 Qg6 Bh3 Rc4 B3g2 Qee6 Bge4+ Kc3 Bb1 Re4 Ba2 Kd3 Qf5 Kc2 Qf4
R2K2Q1/pq2Qp2/bP3b1k/3P1Pq1/1b1Q2B1/2P1B3/3R1PNb/n1r1n1Nr b - - 0 1 illegal: No proof kernel
q7/Rp2BN1R/Pq1n4/7b/r1rPk1NK/PBp2N2/2Pnn2P/Qrq2Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 e4 e5 b4 Bd6 bxa5 dxe4 Bg2 e3 Bh3 e4 Bf1 Be5 fxe5 Qe7 Nf3 Qd6 Ng1 Qd8 a6 Ke7 h6 Ke6 d3 Kd5 h7 c5 e6 g5 e7 f5 e8Q g4 Qe2 c4 Qf8 f4 Qf6 f3 Qg7 c3 Nh3 g3 Bb2 g2 Ba3 g1Q Nf2 Bg4 Nd2 Nf6 Qd7+ Ke5 Qa4 Nc6 Bb4 Rc8 Bc5 Ne8 Bb4 Nd4 Rd1 Rg8 h8N Bh5 Bc5 Qg6 Rg1 Qgb6 Rg7 Rc6 Rd7 Rg4 Rh7 Kd5 Bg2 Rf4 Ng4 f2+ Kf1 Rc7 Bf3 Qb8 Kg2 f1N Qf2 e2 Kh3 e1Q Be7 Qd8 Be2 e3 Kh4 Re4 Bf3 e2 Nf7 Rc5 Qa3 Ra5 Qc1 Ra4 a3 Qb8 Qa1 Qc8 Rc1 Qd1 Qg2 e1R Be2 Qcd8 Nf3 Qd2 Rb1 Rc1 Rb4 Nd6 Rc4 Rb1 Rc8 Qc1 Ra8 Nd2 Ra7 Qa8 Qh3 Ne6 Qg2 Nf4 Qf1 Reb4 d4 Ke4 Bc4 Ne2 Ba2 Rc4 Bb3
N4k2/2P1pPp1/1n1P2q1/1b2bR2/2RbN1PR/rqP1r2r/q1BB1Q2/3K1Q2 b - - 0 1 illegal: No proof kernel forced: wxDB
B1b2nKN/q3B1p1/1pr2P1q/1n4Q1/2kP3r/RP1qnP1Q/r1P5/1QN2R2 b - - 0 1 illegal: No possible last move, all moves rejected
2r5/3pK3/1nN2pN1/Qr1QPR2/q1b1B1P1/2rRbPPb/1R1P3b/3bkB2 b - - 1 2 legal: proof: c4 g5 b4 b5 h3 a5 bxa5 g4 hxg4 b4 Qa4 Nc6 Qc2 Na7 Kd1 Nc6 Bb2 Nd4 Kc1 Nb5 cxb5 e5 f3 e4 Qd1 e3 Bf6 Ba6 Bh4 Bc8 Bf2 exf2 Kb2 Ke7 Kb3 Kd6 Kc4 Ke5 a4 Kf4 Kd5 Kg3 e4 c5 a6 h5 b6 h4 a7 f6 a5 b3 b7 h3 b8Q+ Bd6 a6 b2 Qc7 h2 Qb6 c4 Qc1 c3 Ra3 c2 Bc4 f1B Re3 Kf2 Na3 b1B Nb5 Rb8 a8B Bf4 a7 Ba6 e5 Ne7+ Kd6 Nd5 Qa5 Nb6 Qca3 c1B Rd3 Bc2 Be4 Ke1 a8R Bd1 Ne2 Bb2 Qb3 Bd4 Na7 Bde3 Nc6 Qg8 Bb5 Qc4 Ke7 Qa4 Qd5 Rhc8 Ra7 Bg3 Nf4 Rb7 Ng6 Bgf4 Rg1 h1R Bc4 Rbb8 Rb7 Bh2 g3 Bb5 Rg2 Rg1 Rf2 Bh3 Rg2 Rf1 Rg1 Ba6 Rh1 Rg1 Rd4 Bb5 Bf1 Bc4 Rd3 Na8 Rb1 Rb5 Rb2 Nb6 Nd4 Rg2 Nc6 Re2 Qe6 Bf4 Qd5 Re3 Rd4 Rc3 Rd3 Bg1 Rh2 Bfe3 Rh1 Bg2 Rh4 Bh2 Rh5 Bh3 Rf5
3bq3/b1n2Q2/Q1p2N1p/3B2QP/4PKbq/PP4Br/Pk1N3q/Rb2n2R b - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 a5 g5 a4 g6 a3 Bg5 b4 Bd2 b3 Bc1 Ra6 Qd6 Rb6 bxa3 b2 Qd4 Rb3 cxb3 fxg6 Qd5 g5 Qd1 g4 Kd2 Kf7 Ke3 Ke6 f4 d5 h4 g5 Qe1 g3 Bg2 d4+ Kf3 Kd5 f5 c6 e3 d3 e4+ Kd4 f6 d2 e6 d1Q+ Qe2 g4+ Kf4 Na6 f7 Nb4 e7 Qe8 Qd2+ Nd3+ Kg5 Qe1 Rh3 Nf6 Bf3 g2 Nc3 b1B Nd5 g3 Be2 Bg4 Rh1 Qf2 Qa5 Ne1 Qa6 Bg7 Bf4 Bf8 Nh3 g1B Bc4 g2 Bb8 Bg7 f8Q Qg3 Qg8 Qh2 Nb4 Kc3 Nd5+ Kb2 Bg3 Ba7 Kf4 g1Q Ng5 Qgf2+ Nf3 Bf8 Qg5 Bh6 Nb6 Bf8 Nd7 Nd5+ Ke5 Bg7+ Nf6 Nc7 Nd2 Bf8 Bd5 Bh6 Qg6 Bg5 Qh5 h6 Qf7 Rg8 h5 Qh4 Qg6 Qfh2 Qf5 Bge3 Qg6 Beb6 Qg5 Rf8 Nh7 Rf3 Nf6 Qf7 e8Q Rd3 Bf4 Rh3 Bg3 Qg8 Qeg6 Qe8+ Kf4 Ne6+ Ke5 Bd8 Qf7 Nc7+ Kf4
8/2r1kBK1/1nb4p/qRQbBPP1/3QPr2/6p1/1PrR2Pq/b2NbN1N b - - 0 1 illegal: No proof kernel
3N3n/n4P2/QP3BbR/B1pb1PP1/2P2KBq/3Q2pq/bRq3r1/b1N1k3 b - - 0 1 legal: proof: g4 e5 d4 exd4 a4 b5 axb5 f5 h3 a5 gxf5 g5 h4 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Ba3 Be3 Be7 Bc1 Bf8 Kd2 Kf7 b4 c5 e4 d5 c4 h5 f4 h4 b6 a4 b5 h3 b7 h2 b6 g3 f6 Ke6 f7 a3 e5 Kf5 e6 Ke4 e7 d3 e8Q+ Ne7 Ne2 Kf3 Qb3 Kf2 Rg1 h1B Qbb5 a2 Qb3 d4 Qc3 Qd7 Qc2 Ng6 Na3 Bg7 Qe4 Nc6 b8B Rh2 Be5 Nh8 Bh3 Na7 Qb7 Bd5 Rb1 a1Q Nb5 Rg2 Rh1 Qg4 Qc3 Bf5 Nc7 Qa6 Rb5 Bg6 Ne6 Qh5 Rb1 Qb5 Bf5 Qd7 Qa6 Qg4 Rh6 Qh4 Nd8 Kf1 Be4 Qdh3 f5 Kf2 Bf3 Kf1 Kd1 d2 Bg4 Bf6 Kc2 d1B+ Kd2 d3 Ke3 d2 Kf4 Bb3 Qd3 d1Q Bd2 Ba2 Nc1+ Kf2 Ba5 Qc2 Rb4 Ke1 Bb2 Be7 Bg7 Bf6 Rb3+ Bc3 Rb4 Bd4 Bf6 Ba1 Rb2+
6n1/2Qrq3/1qqP1b1b/P4Kp1/1Rp1P1RB/2PN4/P1q1B1Nk/Qb3R1n b - - 0 1 legal: proof: e4 d5 g4 dxe4 b4 h5 gxh5 a5 bxa5 Be6 Bd3 Bf5 Bf1 Bc8 f3 b5 Kf2 e5 Qe1 e3+ Kg3 e4 Kg2 e2 Qd1 e3 Ba3 Ra6 Bb2 Re6 Bc1 Re4 fxe4 Bf5 Kg3 Be6 Kg2 Bc8 Kg3 Ke7 Kf4 Kd6 d4 e1B h4 g5+ Kf3 f5 h6 c5 h5 e2 h7 b4 d5 Ke5 h6 b3 d6 b2 Ke3 f4+ Kd3 f3 Rh3 f2 Re3 Kf4 Na3 b1Q Bd2 Ba6+ Nc4 Nc6 Qc1 Nd4 Nf3 Nf5 Nh4 Ng3 Ng2+ Kg4 Rf3 Kh3 Rf4 Qbb6 Rg4 Qdc7 Be3 Bc3 Rb1 e1Q Rb4 Qc8 Be2 f1Q Bf2 Nh1 Bh4 Qf7 Qa1 Bb5 Qc1 Ba4 Ne5 Kh2 Qa1 Bd4 c3 Qfd7 Kc4 Bc2 Kd5 c4 Nd3 Qcd8 Rb1 Qdc6+ Ke6 Qd1 Rb4 Bc5 Ke5 Bb1 Ke6 Qc2 Ke5 Ne7 Kf6 Rg8 h8R Rg7 h7 Bd4+ Ke6 Qde8 Rg8 Rf7 h8Q Bh6 Rf8 Rg7 Rf3 Bf6 Rf1 Ng8+ Kf5 Rc7 Qg7 Qf8 Qd7 Qe7 Qc8 Rd7 Qc7
1r2QQR1/2r5/R1qp1r1R/3b3p/1bP1bb2/B2BPqP1/3PnNNP/1K5k b - - 0 2 legal: proof: b4 b5 f4 e5 a4 c5 Bb2 Na6 bxc5 exf4 Bxg7 b4 Bd4 Nc7 Bg7 Nb5 axb5 Qb6 Bd4 Qc7 Bg7 Qd8 c4 Ke7 g3 Ke6 e3 Kf5 b6 Ke4 b7 h5 b8Q f5 c6 a5 c7 b3 Be2 b2 Bg4 a4 Be5 a3 Qe2 f3 Kd1 a2 Kc2 f2 Bg7 f1Q Nf3 f4 Qd1 Bb7 c8R Qf6 Qc1 Nh6 Na3 b1B+ Kb3 Qc6 Kb2 Nf5 Nc2 Bb4 Bc3 d6 Ng1 f3 Bd4 f2 Be2 Rh7 Rg8 Rc7 Bc5 Nd4 Nh3 Qd1 Ne1 f1R Qd8 Rb8 Ng2 Rf6 Bd3+ Kf3 Nf2 Ne2 Qe8 Ba8 Rf1 Bc2 Rb1 a1B+ Ka2 Bac3 Ra1 Be5 Qa3 Bb7 Qa8 Bf4 Kb2 Bb1 Ra6 Bc2 Bh7 Be4 Bf5 Bd5 Bd3 Bc8 Qf8 Bf5 Qe8 Bfe4 Qf8 Rbb7 Qae8 Rb8 Ka2 Bc3 Ba3 Bb4 Kb2 Bh6 Re1 Rf5 Nh3 Nd4 Ngf4 Qe2 Rc1 Qg2 Ka1 Ne2 Rf1+ Qf2 Ne6 Kg2 Kb1 Qf4 Rf3 Qg4 Nef4+ Kh1 Ng2 Bg5 Rf4 Qf3 Rg4 Bf4 R4g6 Rff7 Rh6 Rf6 Nf2+
1r1n4/1QKRpPN1/1P2p2k/R2r3q/1n2r2n/2BPbPr1/Q3P2N/1BQq4 b - - 0 1 illegal: No proof kernel
rQb2r2/4bpb1/P2p1n1q/4N1RP/P3BPr1/2KQR1R1/NB1P1r2/3b3k b - - 0 2 legal: proof: f4 a5 g4 h5 gxh5 e5 c4 b5 b4 e4 Qb3 Nc6 Qf3 exf3 bxa5 b4 Nc3 Nd4 Nb1 Nb5 cxb5 Qe7 Bg2 Qf6 Bf1 Qd8 a4 Ke7 h4 Ke6 e4 g5 e5 Kf5 e6 Ke4 b6 c5 e7 f2+ Ke2 c4 e8R+ Be7 h6 g4 b7 b3 b8Q c3 h7 g3 h5 g2 a6 b2 Nh3 g1R Qb5 c2 Ra3 d6 Rg3 Nf6 Rh2 Qd7 Rhg2 Rf8 h8Q Qf5 Rg5 Qg6 R2g3 Rg2 Ng1 Qh6 Nf3 Rg1 Bg2 f1R Na3 b1B Bb2 c1B Ne5+ Rf3 Bh1 Bc2 Qb8 Bb3 Nc2 Rg2+ Kd1 Rff2 Qg7 Bbe6 Nb4 Bg4+ Kc2 Be2 Bd4 Bb2 Na2 Ba1 Bb2 Beg4 Kc3 Bd1 Rf3 Rg4 Qg6+ Bf5 Nd7 Ng8 Kc4 Rh2 Nb4 Rf2 Bc1 Bg7 Na2 Nf6 Kc3 Be2 Bb2 Bd1 Ne5 Bd8 Re6 Be7 Rg3+ Bf3 Rg2 Bd1 Nc6+ Kf3 Rg1+ Rfg2 Re3+ Kf2 Ne5 Bc8 Qc2 Rh2 Rg2+ Kf1 Rgg3 Rf2 Bg2+ Kg1 Qh7 Kh2 Qd3 Kg1 Be4+ Kh2 Bf5 Kh1 Be4+
1Bbb4/1PRr3R/1kp2N2/2q3p1/1NPB1QK1/QP1P3B/b5Pr/bq2b2b b - - 0 1 illegal: No proof kernel
1r1b4/1Q6/NPqNk3/nn5b/1Pn4p/p1PPQR1R/1pKR1PBr/2B1q3 b - - 0 1 illegal: No proof kernel
1q3Q1K/4P2N/5R1b/PrQn4/b1pQn2P/B1rPPB2/1p3prq/3N2Rk b - - 0 1 illegal: No possible last move, all moves rejected
3qQR2/qR1P4/b5P1/rp1PKN2/P2r1QPp/1p3qbB/3Nn3/4BQnk b - - 0 1 legal: proof: e4 a5 b4 axb4 h4 f5 exf5 g5 hxg5 d5 c4 Kf7 cxd5 Ke8 Ke2 Kd7 Kd3 Kd6 Ke4 h5 g4 c5 a4 e5 f4 b5 d4 c4 g6 b3 f6 h4 f5 c3 f7 c2 f6 Ne7 Ne2 Ra5 Rg1 Nd7 Nbc3 Nc6 Ra3 Ba6 Bh6 c1Q Nb1 Qc5 Ra1 Qa7 Ng3 Rh7 Kf5 e4 Bh3 e3 Rf1 e2 Bd2 Nde5 Be1 Nf3 Nd2 Ng1 Rc1 Bh6 Rc4 Bf4 f8Q+ Re7 Qf7 Rd7 Qe8 Be5 f7 Bf4 Bf2 e1Q f8Q+ Qee7 Qff7 Qe2 Be1 Qf3 Qde2 Ne5 Rc8 Nd3 Rb8 Nc1 Q2e3 Be5+ Qf4 Nce2 Rf2 Kc7 d6+ Kc6 Qf6 Kd5 Qff8 Rc7 d7 Rc4 Rb7 Bd6 Qfe7 Bb8 Kf6 Rb4 Nf5 Bd6 Qe3 Bg3 Qf4 Nc3 Ne4 Qg2 Ne3+ Kc6 Qh6 Nce2 Nd2 Qf1 Kf5 Rc4 Q7f7 Kd6 d5 Rd4 Nc2 Qg2 Nb4 Qh1 Nc6 Qg2 Ne7 Qe4+ Kg5 Ke5 Qf3 Qd3 Qg2 Qe4 Qf1 Qh1 Rf8 Qg2 Nc4+ Ke4 Kf6 Qh1 Bf2 Kf3 Be1+ Bf2 Nd2+ Kg3 Nb1 Kh2 Ke5 Bg3+ Qhf4 Qf3 Nd2 Kh1 Nf5
2b1n3/Pp1Pn3/3R1q1r/K1b5/1p1Q1PBr/PqP3R1/p5N1/Q1QbBNk1 b - - 0 1 illegal: No proof kernel
1K2N3/Nb1bPRPp/3P1q2/1p2Q1r1/1n1Pk2P/4n2Q/B1pRn1n1/2rQ2B1 b - - 0 1 illegal: No proof kernel
Q4br1/K3p2b/5Pbp/P2Rb1N1/nBPp1N1k/1P4r1/5PR1/NqnBQ3 b - - 0 1 illegal: No proof kernel
k1n3R1/B2r1BQQ/P1Rb4/PR1b4/q1pq1p2/pbPNP2P/2rN3K/4r3 b - - 0 1 illegal: No proof kernel
1K2Qbq1/1P6/N1pB1k2/Q4Rpq/5PBn/p3RrP1/2nRPPnN/3r3q b - - 0 1 illegal: No proof kernel
1Rqq1b2/1Q1bqRQ1/P7/1pk3PP/bN6/pP2np2/1r2BP2/2KQNrB1 b - - 1 2 illegal: No proof kernel
B1nQ3K/7Q/4r1q1/P1B2p2/Np1P2Pq/2qRN1QR/PPnb2pn/1k3b2 b - - 0 1 illegal: No proof kernel
q3r1n1/qP1nN1PK/PpRBNQ1p/5n2/8/qPP3p1/R2R4/2rBQbk1 b - - 0 1 illegal: No proof kernel
1nk1bK1B/b2r4/B3P2r/3B1Qbb/1P1P1Rb1/2Qpp1NP/2p1P3/qN4R1 b - - 0 1 illegal: No proof kernel
2qqRb1B/1PNP4/2p3Pr/1r1R4/3pP1pQ/3Kn1P1/1rr2B1n/QB1k2N1 b - - 0 1 illegal: No proof kernel
1n2N3/2b1Qpnq/n1P2P2/qP1RRP1Q/NNB1p2r/2B1P2k/1K1p4/n6r b - - 1 2 legal: proof: d4 c5 h4 cxd4 a4 b5 axb5 g5 hxg5 Nc6 f4 Rb8 g4 Bb7 f5 Ra8 f6 Nb8 Qd3 Be4 Qd1 Bf5 gxf5 Bg7 Kf2 Bh6 Ke1 Bf8 Kd2 h5 b4 a5 c4 d5 Kc2 Kd7 c5 e5 c6+ Kd6 g6 d3+ Kc3 a4 b6 d2 g7 a3 b7 a2 b5 e4 Na3 Ke5 Qc2 Kf4 e3+ Kg4 Kb2 d1Q Qc4 h4 Qd4 h3 Qc5 d4 Nc2 d3 Qe7 h2 Rb1 a1N Bd2 Rh4 Bc3 Qa5 Nb4 d2 Bc4 Kg3 Ne2+ Kh3 Rc1 Qe1 Rf1 h1N Rc2 Qg3 Rd1 Qg6 Rdc1 Nh6 g8N Na6 b8Q Qh7 Qf4 Rb8 Qg5 Ng4 Qh5 Bh6 Qc7 Rf8 Ne7 Rh8 Nc8 Bf4 Qe7 Ng3 Nd6 Ne5 Ne8 Nd7 Nd4 Nb6 Ne6 Nd7 Nc5 Bc7 Na4 Ndb8 Bd4 Rg8 Rc3 Rh8 Rd3 Nc5 Bc3 Nca6 Qh6 Nh5 Rd5 Ng7 Qh5 Qg8 Bd4 Rh6 Rc3 Qh8 Re5 Qh7 Rd3 Rg6 Bc3 Rg1 Rd6 Rh1 Rdd5
rn1QNQ1K/NP4Pp/2pn2p1/b3r1PB/5BPP/2R1Nn2/8/2kn1Rbb b - - 1 2 illegal: No proof kernel
b1k3nB/2Ppr1r1/1N1P2Rb/1KbP1QrQ/8/2rPp2P/n1p1R3/3B2NN b - - 0 1 illegal: No proof kernel
rnr1Q2b/Pp2knPP/N3PpRB/5B2/n2p4/P3B1qp/1R6/1K1Q1N1b b - - 0 1 illegal: No proof kernel
B2B2b1/pNn1P1qn/PRKN1rp1/R3q2Q/p4P2/P3P2k/q2rp3/2Q4B b - - 1 2 illegal: No proof kernel
2QBrk2/P1Q2p1P/npRP4/2r2p1n/1R1q1B1K/NP1b1PQ1/1Np2r2/2q5 b - - 1 2 illegal: No proof kernel
Q3K3/p1PB4/3R1B2/1RPr2Q1/1qqpp1kq/3PP1P1/p3Nrr1/3RbbN1 b - - 0 1 illegal: No possible last move
2r2N2/p1p1QPp1/P1P1n3/3b2q1/1p3nQ1/1p1Pb1b1/1RP3NB/kRR1B2K b - - 1 2 illegal: Other
1R1r2N1/1P2BR2/2Pp2rQ/1R4r1/4Qpn1/p1kPnPBp/K3p1qP/1r1N4 b - - 1 3 legal: proof: a4 b5 axb5 c6 b6 Nh6 b7 Ng8 b4 Qc7 e3 Qg3 b5 Qc7 b6 Qd8 Bb5 cxb5 g4 f5 g5 d6 e4 Bd7 e5 Kf7 e6+ Kg6 exd7 e6 Nc3 Be7 Nb1 Bf6 gxf6 Kf7 c4 g5 c5 h5 d3 a5 Kd2 g4 Kc2 a4 Kb2 b4 f3 e5 c6 Ke6 f7 Kd5 f8R Kd4 Nc3 f4 Qe2 g3 Qg2 b3 Bd2 h4 Be1 a3+ Kb1 h3 Rf7 b2 Nd5 e4 Nf6 e3 Ka2 b1R Qe2 g2 Bg3 Nh6 Ng8 Na6 b8Q Qg5 d8B Nc7 Be7 Ng4 Qf8 Ra5 Qh6 Nd5 b7 Kc3 Qe1+ Kc2 Ne2 g1R Nc3 e2 Nd1 Qg6 Qb4 Nde3 Qe4 Rg2 Rg1 Rg5 Nf6 Rd8 Ng8 Rb6 Rb1 Qg7 Nf2 Kc3 Rb5 Rg6 Ra5 Rb5 Rb1 Rg1 Ra8 Rbg5 Rb5 Rb1 Rb8 Qd4 Qf5 Ng2 Nh1 Qg1 Qe4 N2e3 Nf2 Qg2 Nd1+
1B1B1bN1/Rp5q/q1n3k1/pb1pb1pp/4pNQP/1P2P1QK/6PP/2N4R b - - 3 4 illegal: No proof kernel
2bq4/6Pr/1rp1nR1N/R1q1b1B1/BQ3n2/2Pb1PpN/P2n2PQ/2K1Bk1q b - - 0 1 illegal: No proof kernel
1bbbr3/1bn1R2b/2P3nK/PQB1R1pp/8/Q2qrNP1/P2n3P/1kBB1N2 b - - 0 1 legal: proof: d4 c5 e4 cxd4 b4 f5 exf5 a5 bxa5 Ra6 Bf4 Ra7 Bc1 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 c4 e5 f4 g5 f6 b5 f7 d5 c5 d3 f5 d4 f6 d2 Be2 b4 Bb2 d3 Qb3 d1B Na3 d2 Nc4 Ne7 Na3 Na6 Qa4 Bc2 Rc1 d1B Nh3 Qd3 Ng1 Ng6 Qb5 b3 Bd4 b2 Be3 b1N Qb8 Nc7 Nf3 Nd2 Re1 Be7 f8Q Bd8 Qd6 Re8 f7 Ra6 Qf8 Rae6 Kh6 Bb7 c6 R6e7 Kg7 h5 Nc4 Bb1 Bc5 Bb3 Ne3 Be6 Ba3 Bec8 Rc5 Bc2 Bc1 Re6 Ng1 Kd4 Bf3 e4 Re5 Kc3 Nf1 e3 Bd1 e2 Kh6 Bb1 Nf3 R6e7 Rd5 Re3 Re5 Bc2 Qe7 Bb1 f8B Bc2 Ba3 Bb1 Bc5 Kb2 Ba3+ Ka1 Bc1 Bc2 Qa3 Kb1 Ng3 Qa6 Bc5 Qd3 Rh1 e1B Nf1 Bg3 Re7 Bf4 g3 Bb3 Rg1 Bg8 Rg2 Bh7 Rf2 Re1 Rfe2 Bd6 R2e5 Re3 Qa8 Ne6 Qa6 Bb8 Qc4 Nc7 Qb5+
3kB1b1/1prpnQ1R/2NQ1P1B/KP1Rq1nr/N2P1nQ1/6P1/Pr5b/r4r2 b - - 0 1 illegal: No proof kernel forced: wxLB
3Q3b/Q3B3/1Pbp1R1n/2bPp3/1nN1P3/nKN1BP2/Bn1q1r1P/r1k1R2r b - - 0 1 illegal: No proof kernel
kQ6/1b3p2/5Bb1/1PnN1Rrq/r1B1PPR1/pnQ1n3/Pb1NPK2/r3Q1n1 b - - 0 1 legal: proof: g4 h5 gxh5 b5 c4 e5 d3 e4 dxe4 bxc4 h4 g5 f4 c5 b4 a5 h6 d5 h5 Kd7 b5 Kc7 h7 Kb7 h6 g4 Bg2 d4 Be3 g3 Rh2 c3 Qd2 d3 Rh1 a4 Qb2 c4 Bb6 a3 Kf1 c2 Ba5 c1N Bb6 d2 Ba7 d1B Rh2 c3 Bf2 c2 Qf6 Qd5 Qe5 Bf5 Bb6 Ra4 Bd8 Ne7 Nc3 Nd7 Bh3 g2+ Kf2 Nc5 Nf3 g1N Nd2 Bg6 Be6 Bg7 Rh5 N1b3 Rf5 Rg8 h8Q c1R h7 Ka8 Qf6 Qe5 Bc4 Nd5 Qh4 Ne3 Bf6 Bc2 Nd5 Re1 Rc1 Bd3 Rc2 Ra1 Rg5 Qf5 Rg4 Qh5 Qh1 Nf3 Qe1 Ng1 Bd8 Bb2 Bf6 Re8 Qg7 Re5 Rc1 Rg5 h8Q+ Kb7 Qd8 Bc2 Qd6 Ka8 Qe5 Bd1 Qc3 Bc2 Qh8+ Ka7 Nb4 Ra6 Rd1 Ra5 Bd5 Nc1 Nf3 Bb3 Rd4 Ra6 Nd2 Ra4 Be6 Bc4 Rd5 N1b3 Rf5 Bd5 Qd8 Ba8 Bc4 Bb7 Qd6 Ka8 Nd5 Rb1 Qde5 Ra1 Qb8+
1Q6/2bN1P1Q/1B4q1/rpN1k1P1/prr1nb2/1bbP2nR/PPn4R/BB4K1 b - - 0 1 illegal: Other
4rr2/3BpPK1/1BQPQ3/3q1Rp1/2n1P1P1/brNP1r1r/3NRn1q/k1N2b2 b - - 0 1 illegal: No proof kernel
1b4B1/1kB1r2N/P1pR3b/3P3q/KPb2bR1/n3QnRp/2Pr1NqP/b3Q3 b - - 0 1 illegal: No possible last move, all moves rejected
1Q1nQKR1/b1B2n2/r1r2P1p/P3pk1q/1r1r1q2/2N1P2b/1QR1P1rP/3N1B2 b - - 0 1 illegal: No proof kernel
1N1B1B2/Ppr1p2Q/N3q2n/3Q2b1/rnR1qR2/4P1n1/nP1P2P1/2nBkbK1 b - - 0 1 illegal: No proof kernel forced: bxDB
3b3b/kpnB1N2/q3R1nQ/p2PP3/PP1Q1r2/B1b1K1nQ/4RP1N/3rn2b b - - 0 1 illegal: No proof kernel
2bn1r2/rQN2R2/p1PP2pK/k3r1PQ/qBnb4/1Rb3r1/P1bP1N2/5B1N b - - 0 1 illegal: No proof kernel
n4N1r/q1b1r1R1/p3pP2/P3PPB1/1rbp4/k2QR1n1/BP1nbQK1/2B1N3 b - - 0 1 illegal: Other
K3Q1N1/P1PpQ1pb/3Q2P1/1Pb1n3/2pN2R1/BBPq2rk/R1r3nn/2q1q3 b - - 0 1 illegal: No proof kernel
B1Q2KN1/kQ6/1p6/nPB3p1/p1NP2n1/P2b2bq/q2NPPnr/1rRb3R b - - 0 1 illegal: No proof kernel
2rR1B1N/Nn1bpB2/4Qp1R/2bP1P1r/1Q2P1p1/k1Pq1Rq1/r2nP3/n1K5 b - - 0 1 illegal: No proof kernel
3bQ1KR/4N1np/2qNnprR/2qQq3/1p2bPPb/1P3r1P/1BBP1N2/7k b - - 1 3 illegal: No proof kernel
NRB2bR1/2PK1kQQ/np1PR2P/p1qbB1p1/6n1/Prr1q3/r3b1P1/2N5 b - - 0 1 illegal: No possible last move, all moves rejected
4Q1r1/1NnB1Q2/1q1b3B/pq1R1nq1/3p2p1/rR1kP1PP/P2P4/QK2b1Nb b - - 2 3 legal: proof: f4 c5 b4 h5 bxc5 e5 fxe5 h4 c3 h3 g3 Rh6 Qc2 Rh4 Qe4 Rh8 Qg2 hxg2 Kd1 Ke7 Kc2 Ke6 c4 Kf5 h3 Ke4 c6 f5 e3 b5 c5 d5 c7 g5 e6 b4 c6 f4 e7 g4 e8Q+ Ne7 Ba3 f3 Bc4 f2 Kb2 f1Q Bb5 d4 Qf7 Bb7 c8Q b3 c7 Rg8 Bd7 Qb5 Nc3+ Kd3 Rf1 Na6 Kb1 b2 Ne4 Nf5 Nd6 Qg5 Qce8 Qb6 c8Q Nc7 Bc5 Bc6 Nb7 Bd6 Rf4 a6 Re4 Bd5 Re5 Be4 Ne2 g1B Rd5 Bf2 Ng1 Be1 Bb4 Be5 Bf8 Bd6 Bh6 Bg2 Rh2 Bh1 Rg2 a5 Rf2 Rb8 Rf1 Qb5 Nd8 Rb6 Nb7 Rc6 Qa8 Rc3 Qa6 Ra3 Qc6 Qb6 Qc1 Ng7 Rf6 Nf5 Qd1 Bb4 Rc6 Bd6 Qc1 Qb5 Rb6 Qb4 Rbb5 Ne6 Qc3+ Ke4 Qd8 Nc7 Kc2 Qc5 Qdf8 Qb6 Q8e8+ Ne7 Kd1 b1Q+ Qc1 Qb2 Qa1 Kd3 Rb4 Qb3+ Kc1 Nf5 Rbb5 Qa4 Kb1 Qc4 Rb2 Qcb5 Rb3+
2n2B2/p1R1Q1Kp/r3b3/1QnP1R2/2pPr1P1/1Nq4P/qNPb4/kq1BN2b b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 f4 gxf4 axb5 Bg7 Nf3 Bh6 Ng1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 g4 f5 h3 c4 b6 f3 b7 f2 b3 f4 Bg2 f1Q Ra2 f3 Qd3 f2 Rb2 Bh6 Qe4 Bd2 Bf3 Qa5 Bd1 Na6 b8N Qa2 Nf3 Nc5 Nd7 Rb8 Nc3 Ka3 b4 Rb6 b5 Ra6 b6 e6 b7 Ne7 Kf6 e5+ Kf7 Re8 b8Q Qe1 Qb7 f1B Kg7 Bg2 Rf1 Bh1 Qb5 Qg3 Qe3 e4 Ne1 Qg1 Qg5 e3 Rf5 e2 Na4 Qe3 Qf6 Qc3 Qg5 Qa1 Rb4+ Ka2 Nb2 Kb1 Qe3 Qa2 Qe6 Ka1 Rb3 Nb7 Nc5 Bd7 Qe5 Nc8 Qd6 Re4 Qe7 Be6 Rb4 Kb1 Nb3 Nc5 Qb8 Ra5 Rb7 Ra3 Rc7 Ra6 Ng2 e1Q Qb5 Bg5 Bf4 Qg1 Bd6 Bd2 Qf7 Qf1 Bf8 Qe1 Qe7 Qf1 Be2 Qd1 Ne1 Qc1 Na5 Ka1 Bd1 Qcb1 Nb3+
3n1q2/1r1kp1NN/ppRbr2Q/qbq1B1QP/2n1K3/P3PRRP/1P2B2b/8 b - - 1 3 legal: proof: f4 g5 g4 gxf4 c4 d5 cxd5 h5 gxh5 Qd6 Nf3 Qd7 Ng1 Qd8 Kf2 f5 Kf3 c5 d4 a6 a3 c4 d6 c3 h3 c2 d5 Bh6 Qd3 Nf6 Qe4 Qa5 Qc4 b6 Qc5 Ra7 Nd2 Rb7 Nb3 Ng4 Nd4 Nc6 Ne6 Ne3 Ng7+ Kd8 Bd2 c1B Bc3 Bd7 Rb1 Be8 d7 Bg5 Rh2 Rh6 Rg2 Re6 Ra1 Kc7 d8R Bh4 Rg6 Nc4 Rd6 Bg3 e3 Bh2 Qb5 Bd2 Be2 Kc8 Bd4 Bb4 Rf1 Bd7 Kg2 Kd8 Nf3 Kc7 Ng5 f3+ Kf2 Kc8 Nh7 Be8 Bc3 Kc7 Ke1 f2+ Kd1 Bd7 Kc2 Kd8 Kd3 Kc7 Re1 f1Q Rg3 Qf3 Rf1 f4 Rg2 Qg3 Bf6 Qg5 Rg3 f3 Bd4 Rh6 Ke4 f2 Rg6 Be8 d6+ Kd8 d7 Bc5 Ra1 f1Q Rd1 Qf2 Rf1 Qf8 Rff3 Kc7 Bf6 Kd6 d8Q+ Bd7 Qe8 Nd8 Qf7 Bb4 Qf5 Bb5 Q7e6+ Kc7 Bd4 Bc5 Qef6 Bb4 Qf4+ Kd7 Q6e5 Bc5 Rc6 Bd6 Qef6 Qc5 Be5 Rg6 Q6f5+ Re6 Qh6 Qe1 Qg4 Qa5 Qgg5
3BBN1q/1RQpQp2/KnRqq1rb/pPP5/bQ5P/3Pk2n/P2r4/6nN b - - 0 1 illegal: No proof kernel
1Q1r3R/1p1Q1bNP/1P6/k1pP1b2/n3b1r1/pq1N1B2/2PbP2n/NRn3BK b - - 0 1 illegal: No proof kernel
2Q3n1/3p2k1/1b3brQ/4n3/Q1rBpPNP/3PPb1p/2bn1R1P/qR1NK1B1 b - - 2 3 illegal: No proof kernel
5n2/1rp2p1n/P2Npr2/KNn1QP2/1R2P2R/1PP2b1b/kQb4R/b2B2qB b - - 2 3 illegal: No proof kernel
1KQ5/3P4/1PQnp2N/1p1r2np/QPB1qb1R/Br2N2P/1r1Pk1q1/1r1b2R1 b - - 0 1 illegal: No possible last move
Rk1b4/pNr1P1bn/BqQ2N2/P3n1Qp/n3KPq1/r1pR4/1BP3QP/6n1 b - - 0 3 illegal: No possible last move
r7/rB1pb1nr/2bP1P2/2qN1p1Q/2p1QPP1/b1P4K/1N4r1/1kBq1RRQ b - - 0 1 legal: proof: e4 f5 h4 b5 a4 Nc6 h5 Ne5 axb5 Ng4 e5 N4f6 h6 gxh6 exf6 h5 Ra4 h4 Ra2 Ba6 Ra1 Bc8 d4 Kf7 g4 Ke6 f4 Kd5 Kf2 Ke4 Kg2 e5 b4 a5 b6 h5 b7 c5 b8Q a4 b5 h3+ Kg3 c4 b6 h2 d5 a3 b7 a2 d6 h4+ Kg2 h3+ Kg3 Rh7 Qc7 Nh6 b8Q Nf7 Qbb6 Bb7 Qa5 Qc8 Qd8 Ng5 Qdd2 Bc6 Qab4 Ne6 Qdc3 Be7 Qh8 Ng7 Nf3 Qc7 Rg1 h1Q Qc5 h2 Be2 Ra7 Rg2 Qd1 Qg1 h1R Ne1 R1h2 Nd3 Qb6 Qe8 Qc5 Qh5 Ra8 Rf2 Rg2+ Kh3 Ra7 Qb4 Kd4 Qb7 e4 Nb2 e3 Bf3 e2 Qa8 e1B Qh1 Bb4 Nc3 Ba3 Qb7 Ra8 Nd5 Ra7 Rb1 a1R Rf1 Ra2 Na4 Ra1 c3+ Kd3 Nb2+ Kc2 Rg1 Qf1 Be3 Qd3 Rbf1 Qd1 Bc1 Kb1 Qa8 Ra2 Qe8 Bf8 Qe6 Be7 Qe4+ Rc2 Na4 Ra8 Bg2 Bb4 Nb2 Bb5 Qd4 R2a7 Nc7 Ba3 Bb7 Rg2 Nd5 Bc6 Qe4+
2Qq1rn1/3Bp1bN/KpP1PP2/1pBk2p1/1P1N2P1/2rr4/3R2nb/2RQ1n1B b - - 2 3 illegal: No proof kernel
2Qnn2R/2b5/pP4QN/Nn3p1K/p1k1rPPp/P2bbP2/qRB2rN1/6B1 b - - 0 1 illegal: No proof kernel
2NNb3/Kb3P1P/nrp3kn/p3QRr1/4B3/BPP1pp1N/Q4PR1/nq2b3 b - - 0 1 illegal: No proof kernel
2bQ2n1/B4KbP/Rpr1p1Bk/1QBqr2P/1P2Pp1b/3N4/Pr1N2p1/5nR1 b - - 0 1 illegal: No proof kernel
3K2B1/3QN2b/pP1rp1P1/1n1q1Bp1/PB1RP1R1/2bk3r/pn3QP1/3rn2N b - - 0 3 illegal: No proof kernel
3kbR1R/1pp1P1P1/r2bKBp1/pr5r/2B3P1/Q1nNn1q1/Q1P3P1/1b1Q2N1 b - - 0 1 illegal: No possible last move
N1q4k/3bK3/3RNB1B/RQb1pP1p/2p3pr/1BQP1PP1/1nPrq1n1/2q5 b - - 0 1 illegal: No proof kernel
BQ1KQ3/q5n1/1rN3BN/p1n2pp1/1RB3q1/P1qP1P1R/2bPp1Pb/4r1k1 b - - 0 3 illegal: No proof kernel
3NR2k/P1r1Qq1q/pK1BN1Q1/1n4r1/N2P2BP/1Rp2p2/Pp3P2/b2n1q1b b - - 0 1 illegal: No proof kernel
1r5r/KN3qb1/1p1p3B/p1P4p/1PR1P1q1/b5Q1/1Q1PqRQP/nNnk1B2 b - - 0 3 illegal: No proof kernel
Q7/3B3p/1KQ1Pbqp/3N1nr1/p4rp1/rR1r1bBP/k1n1PPP1/1NN3R1 b - - 0 1 illegal: Other
2n2B1R/kP3rN1/1nK1pp1p/2pQ1PQ1/2b4P/1B3Bb1/2P1Pnb1/rN2n1R1 b - - 0 4 legal: proof: d4 c5 f4 g5 a4 b5 axb5 Qb6 f5 Bg7 d5 Bf8 Qd4 Qa6 Qf4 Qc6 dxc6 gxf4 Kf2 Kd8 Kf3 Kc7 Ke4 Kb6 Kd5 a5 h4 f3 b4 h6 g4 f2 c7 a4 g5 f6 g6 a3 g7 a2 Bh3 f1B Bf4 Ka7 Nf3 Ba6 c8B Rh7 Bg4 Bg2 Rg1 d6 Bh5 Nd7 Kc6 d5 Bd6 Nb6 Be6 d4 Bb3 d3 Bg4 d2 Bh5 Nd5 Nd4 d1N Ne6 Nf2 Bf3 Nb6 Nf4 e6 Nh5 Nc8 Be7 Kb8 b6 Bc4 b7 Ka7 b5 Nb6 Bd8 Bd6 Be7 Bg3 Bf8 Nc8 Kd7 Nge7 g8Q Rf7 Qg5 Nd5+ Kc6 Ndb6 Ng7 Kb8 Nc3 Ra7 Rad1 a1N Rd8 Ra3 Nb1 Ka7 Be7 Ra4 Rh8 Ra6 Bf8 Bd3 Bbd5 Nb3 Bc4 Nc1 Bcd5 Ra1 Bb3 Na4 b6+ Ka6 b8Q Bc4 b7 Nab6 Qd2 Ncd3 Qe5 Ka7 Qg5 Ne1 Qd5
n4B1r/1rpB1P2/PqP1pP2/2RNp1bQ/4P3/1p1k3K/pRn3N1/1B1b1nQ1 b - - 0 1 illegal: No proof kernel
4Br2/pbR1Qb2/Q3p3/Pp1N2p1/1P2P1n1/1P2PRBN/4r1pn/BK2b1qk b - - 0 3 illegal: No proof kernel
Q1r3Nn/kp2Pb1p/B2B1pp1/5P1P/3K1QP1/NbnPp1r1/1rR4R/2B1q3 b - - 0 3 illegal: No possible last move
N1QRb3/bPRprq1B/Bp2QN2/Pn3nB1/2KP2p1/1p4pr/3P1bP1/k7 b - - 0 1 illegal: Other
1B1q4/k7/1r2pQnB/1pKQPpPp/br3N1b/5pP1/1P1RnP1b/1R3Q1N b - - 1 3 illegal: No proof kernel
n1RN1R1Q/1q2PrR1/1B1kpn1p/7P/4Pb2/1pp2K1Q/q1Pb1prP/3B1N2 b - - 2 3 illegal: No proof kernel
1N1Q2K1/pp1q1RbB/2n2Q1k/1P3B1r/2Pp1P1p/2nPR2p/P1b5/N1q2rB1 b - - 0 3 legal: proof: h4 g5 e4 gxh4 Nc3 c5 Nd5 f5 exf5 c4 Nc7+ Kf7 Bxc4+ Kf6 Bf1 Kf7 Ke2 Kg7 Ke3 h5 Kd4 e5+ Kd5 h3 g4 e4 b4 e3 f4 e2 c4 Be7 g5 Bd6 b5 Qf6 g6 Qd8 f6+ Kh6 f7 Nc6 g7 Rb8 f8Q Be5 Qf6+ Kh7 Nf3 Qf8 Na6 Bd4 Ne1 Qd8 Nc2 Nge7+ Kd6 Ra8 Nb8 Nd5 Ba3 Rg8 Bc5 Nc3 Rg1 e1Q Bd3+ Ne4+ Kd5 h4 Rg3 d6 Re3 Bf5 Rc1 Bg6 Ke6 d5 Na1 Nc3 Bf5 Kh6 Bb6 Rh8 g8B Qc7 Bh7 Qg7 Na6 Rad8 Nb8 Qh1 Qc2 Qd1 Qd3 Qc7 Rb1 Qc1 Rb3 Qg7 Ra3 Qc7 Ra6 Be5 Qd4 Rd7 Qd8 Bg7 Q4f6 Qc8 Re5 Qc7 Bg1 d4 Rb6 Rd5 Re3 Rg8 Be4 Rh5 Bf5 Ne5 Rd6 Nc6 Rd7 Qc8 Bg4 Qc7 Rf7 Re8+ Qfe7 Bc2 d3 Rg8 Bgf5 Re8 Rf8 Qd7+ Kf7 Qb1 Kg8 Qc1 Qe5 Re6 Rf7 Rg6 Bf2 Rg1 Qee7 Re1 Bg1 Rf1 Qf6+
Qbb1n3/p2p4/1P3N1r/R1bB1p1p/4NQ1P/P2P4/qRnKBPp1/5qNk b - - 1 4 legal: proof: g4 f5 c4 e5 g5 b5 cxb5 e4 d3 Na6 Kd2 e3+ Kc2 Rb8 Bd2 exd2 Nc3 Rb6 Nb1 Rf6 gxf6 Bb4 Nc3 Bd6 Nb1 Bf8 h4 Kf7 b4 Ke6 e4 Ke5 f7 Kf4 b6 g5 e5 h5 b7 c5 b8Q c4 b5 g4 b6 g3 Nc3 Rh6 Rb1 Nf6 Rb2 Ne8 Ne4 c3 Be2 Bc5 Qc1 Nb4+ Kd1 g2 f8N Nc2 Qa8 Qe7 a3 Qf7 e6 Qg8 e7 Qa2 Nf3 Kg4 Re1 Kh3 Ng1+ Kh2 Nh7 Nf6 e8B Kh1 Bf7 Ne8 Nhf6 Qd5 Bf1 Qe6 Ke2 Qa2 Kf3 d1Q+ Be2 Rh7 Bd5 Rh6 Qf4 Qda1 Rd1 Q1b1 Rd2 Qf1 Rb4 Na1 Rc4 c2 Ra4 c1B Rb2 Nc2 Ra5 Bd2 Qd6 Bf4 Qe5 Bg3 Qf4 Nd4+ Ke3 Nc2+ Kd2 Bh2 Qg5 Bb8 Qf4
R3n3/1bB2nbK/q2p3p/pRqp2p1/N1RN2kP/2PBQr2/Pn3PPQ/8 b - - 0 1 legal: proof: d4 a5 b4 f5 e4 c6 exf5 b6 b5 Ra6 bxa6 b5 d5 cxd5 Ke2 Kf7 Kd3 Kf6 h4 e5 c3 g5 a7 e4+ Kd4 h6 a8R b4 Nd2 b3 Bd3 b2 Ne2 b1Q Re1 e3 Nb3 Bb7 Qd2 Bg7 Nc5 Qbb6 Rb1 Qdc7 Rb5 Qa6 Na4 Qc8 Ba3 Rh7 Bd6 Nc6+ Kc5 Ne5+ Kd4 Nf7 Bc7 Rh8 Reb1 Qf8 R1b4 Qfd6 Rc4 Qdc6 Nc1 e2 Nb3 e1N Qf4 Qd6 Qh2 Qf8 Ke3 Rh7 Nd4 Qc5 Ke2 d6 Ke3 Nc2+ Kf3 Nb4 Kg4 Rh8 Kh5 Rh7 Bb1 Nd3 Bc2 Nb2 Bd3 Ke7 Kg6 Nf6 Ne6 Rh8 Nd4 Ne8 f6+ Kd7 Be4 Rf8 Kh7 Ne5 f7 Ke7 Bb1 Kf6 Nc2 Kf5 Nd4+ Kg4 Bd3 Rg8 f8Q Nf7 Qe7 Rf8 Rd8 Ne5 Rc8 Rf3 Ra8 Nf7 Qe3
2kn2b1/p4p1p/PnBn2N1/1P2b1Pb/1r1R4/BQK3pP/rp1Q1RP1/Q1N5 b - - 0 1 illegal: Other
Qq2Q3/1pb2nKp/2BB4/p3n1pp/kRP3PP/3r1pR1/1r1N1PPN/b4B2 b - - 2 3 illegal: Other
7r/b2R1p2/p2p1K2/qqnP1Qp1/PqkB2R1/N1rr1PB1/1nbP1QP1/1BN5 b - - 0 1 illegal: No possible last move
3Nb1n1/2rRPnrp/n1b5/K1PNn1kB/4B3/3P1P2/1P2R1N1/NQq5 b - - 0 1 legal: proof: h4 c5 c4 b5 d3 g5 hxg5 d5 Bd2 d4 Bc3 b4 a3 Na6 axb4 Qd6 bxc5 Qd8 c6 Nb8 f4 dxc3 Rh2 e5 Rh1 e4 Na3 Bd6 Nb1 Be5 fxe5 Qd4 Ra2 Qd6 Ra1 Qd8 Rh6 f5 Rh4 f4 Kf2 f3 Ke3 f2 Rh6 Qf6 Rh1 Qf3+ exf3 Kf8 Ke2 Ke8 g4 Ke7 g6 a5 c7 c2 Kd2 c1N Kc3 e3 e6 Kf6 e7 e2 g7 e1Q+ Nd2 a4 Kb4 a3 c5 a2 g5+ Kg6 Nh3 Ra7 Rh2 Bd7 c8B Bf5 Bb7 Ne2 Be4 Nc3 Nb3 Na6+ Ka5 Rc7 Qb1 Qc1 Bg2 Kh5 g6 f1B Nf4+ Kg5 Bh3 Nb5 Bg4 Bd7 Re2 Bc6 Ng2 Nd6 Bh5 Be8 Re3 Nf7 Re2 Nf6 g8N Bc6 Nh6 Rg8 Nf4 Bh3 g7 Bhd7 Ng2 Be8 Ng4 Nb8 N4e3 Nbd7 Nd5 Rf8 g8N Nde5 Nh6 Rg8 Nf5 Rg7 Nd6 Ng8 Nb7 Qc2 Qg1 Qc4 Nd8 Qc1 Rb1 a1N Qh1 Nc2 Ra1 Qe3 Qb1 Nb4 Ra3 Qf4 Na1 Qc1 Rb3 Na6 Rb7 Rc8 Rd7 Rc7 Rf2 Ng6 Rd2 Nge5 Re2
3kB1N1/1Rq1PBP1/p3P1nq/3pR3/nrrnN3/P1QK4/2P5/2B3Bb b - - 0 1 legal: proof: e4 e5 b4 c5 bxc5 g5 h4 f5 hxg5 d5 d4 fxe4 dxe5 Bd6 cxd6 Qd7 Na3 Qc7 Nb1 Qd8 Ke2 b5 f4 h5 g4 e3 a3 a6 e6 h4 f5 h3 f6 b4 g6 h2 g5 b3 g7 b2 g6 Qe7 f7+ Kd8 f8B Ra7 Nd2 b1N Qe1 Bd7 Kd3 e2 Nh3 Rh4 Ng5 Nc3 Nh7 Rb4 Rb1 Be8 Nf6 Nc6 Nde4 Na4 Qc3 e1Q Rb2 Rc4 Rb7 Nd4 Rg1 h1Q Rg5 Qh6 Re5 Ra8 Be3 Bf7 Bg1 Rb8 Be2 Qc7 Bh5 Ne7 g8B Qh4 g7 Be8 Bgf7 Ng6 Ng8 Qhe7 Ra7 Rbb4 Rb7 Qed7 Be7+ Kc8 Bg5 Qe7 Bc1 Kd8 Bf3 Nf8 B7h5 Bg6 Bfg4 Bf5 Bf7 Ng6 Bh5 Bg4 Be8 Bf3 Bf7 Bh1 Be8 Nh8 Bhf7 Ng6 dxe7+
N1B1Nb2/2q4n/3qNn2/P1PrP2R/b4R1r/nqQN2n1/k2PP3/2K2B2 b - - 0 1 legal: proof: f4 e5 fxe5 a5 b4 Qe7 bxa5 Qg5 g4 Qd8 Ba3 c5 Bb4 cxb4 Bh3 h5 gxh5 Ke7 Bf5 Ke8 Bxd7+ Ke7 h4 g5 c4 f5 a4 b5 c5 f4 a6 f3 h6 b3 h5 g4 a5 b4 a7 g3 h7 g2 h6 b2 Rh4 b3 Na3 b1Q Nb5 b2 Nh3 Qc7 Rf4 Nf6 Qc1 f2+ Kd1 f1N Nf2 g1Q Nd3 Qg6 Bh3 Bb7 Bc8 Ng3 Ra3 Qa2 Qc3 b1N Kc1 Nbd7 Rb3 Rb8 a8B Ke6 Rbb4 Ba6 Bg2 Qb3 Bf1 Kd5 Rf5 Bb7 Rbf4 Bc6 Rg5 Na3 Rh5 Rg8 h8N Nh7 Nf7 Ndf6 Nfd6 Rh8 Ne8 Rb6 Nbd6 Ba4 Nc4 Rd6 Nb6+ Kc6 Rd4 Kb5 Na8 Rd5 Rg4 Nd7 Rf4 Qgd6 Qd4 Ndf6 Qc3 Rg8 Rh1 Rg4 Rh5 Ng5 h7 Rh4 h8N Ngh7 Ng6 Nfe4 Qa1 Kc4 Rf2 Nef6 Ngf4 Qbb8 Qd4+ Kb3 Ne6 Ka2 Rf4 Qb3 Qc3
1N1n3Q/1BPN2b1/1r4bb/PBBP1Rq1/1P2bP2/2B4n/4R3/bn2K1kb b - - 0 1 illegal: No proof kernel
4k1r1/3B1p2/3R2r1/2Q1n2K/1b1P1PR1/3Pq1NB/rPr1bR1P/N2bR1r1 b - - 0 1 legal: proof: g4 a5 a4 h5 gxh5 b5 axb5 Na6 bxa6 e5 d3 d5 Kd2 e4 c3 e3+ Kc2 d4 Bd2 exd2 cxd4 Bg4 Qc1 Be6 Qd1 Bc8 f4 g5 e4 c5 h6 c4 h7 c3 a7 g4 e5 g3 e6 a4 e7 a3 Bh3 a2 Qc1 g2 Kd1 c2+ Ke2 Be6 Kf3 d1B+ Ne2 g1R Nd2 Rg7 Re1 Qa5 Nb3 Rg6 Rf1 Qc5 Rf2 Nf6 Rb1 Bd7 Na1 Rhg8 h8R Ng4 Rh6 Qe5 Rh4 Rc8 a8R Be6 Ra6 Qe3+ Kg2 Rc6 Ng3 Ne5 Rg4 Be2 Rb6 Bb3 Ra6 Rc7 Rd6 Ba4 Qd1 c1R Qc2 Ra7 Qc5 Rc4 Rg1 Bad1 Re1 Rc2 Rb6 Kd7 e8B+ Kd8 Bd7 Ra8 Nb3 a1R Rd6 Rac1 Na1 Ra2 Nf1 Qd2 Kg3 Qe3+ Kh4 Ke7 Bc8 Ke8 Ng3 Rb1 Kh5 Be7 Rd5 Bd6 Qc7 Ba3 Qc5 Bb4 Rd6 Rd2 Rc6 Bb3 Rg1 Re1 Rb6 Bbd1 Rd6 Rc2 Rh1 Rg1 Be6 Rg2 Re1 Rg1 Bd7+
2kb1N2/6Rr/1BPbRp1q/pKB5/P2r2P1/1N2n3/BP1Qnn1P/1B5b b - - 0 1 legal: proof: e4 d5 exd5 b5 f4 g5 fxg5 h5 Qxh5 c5 d4 Nf6 Qh7 Ng8 c4 bxc4 dxc5 Bg4 Qc2 Bd7 Qh7 Bc8 Kd2 Kd7 Kc3 a5 a4 e5 g6 e4 g7 e3 d6 e2 Qc2 e1N Nh3 Bb7 Nd2 Nf6 g8B Kc8 Nb3 Qb6 Be3 Rh7 Ng5 Nc6 Rg1 Ng4 Qd2 Nc2 Ne6 Nf2 Bd3 N6d4 Rae1 Rb8 g3 Bh1 Re2 Be7 Nf8 Bd8 c6 f6 Bf7 Qb5 Ree1 Qg5 Rg2 Qh6 d7+ Kc7 Be6 Rb4 Bdf5 Na1 Bb1 Nac2 Bd5 Kb8 Bg5 Kc7 Re6 Ne3 Rg1 Nef5 Be3 Ne2+ Kc2 c3 Bc5 Rd4 Rg2 Be7 d8B+ Kc8 Bdb6 Bd8 Nc1 Qh4 Bda2 Qh6 Kb3 c2 Rg1 Rd5 Kc4 Ne3+ Kb5 Rd4 Nb3 c1B Qb4 Nd5 Qe1 Bf4 Qd2 Bb8 g4 Bd6 Re1 Ng1 R1e5 Ne2 Rg5 Ne3 Rg7
KnBq4/6Nr/4Nn2/n2k1p2/PrN5/P1pRr1Rr/q1P1P1P1/N1QB4 b - - 0 1 illegal: Other
R1q2BNn/q1B2Q1P/1P2k3/1n4r1/qr1q1b1B/4N1P1/1PbqPrB1/4R2K b - - 0 1 illegal: No proof kernel
qr1Q2R1/b1P5/1n1r3n/1b2R1N1/3B2P1/1q1B1PnK/BP2PN2/bBkb3b b - - 0 1 illegal: No proof kernel
3B2qq/1Rn1qrBn/b1bP2Pk/N2Br3/3Q1R2/1BPNb1n1/PKn3P1/8 b - - 0 1 illegal: No proof kernel
1BK5/R1b1pP2/5rnP/nk2PBn1/q1Q2b2/P4qPN/rR4Nn/2bR1R2 b - - 0 1 illegal: No possible last move
NBn2b2/2P1P2b/2r3n1/kN1p1P1n/P1R1q1Nq/n2P3N/1Br1Q3/4bKR1 b - - 0 1 illegal: No proof kernel
k2n1nn1/1Pb2pPn/2r2BRr/b3PP2/BR3Pq1/2q4R/2NQ1N1K/2q1R3 b - - 0 1 illegal: No possible last move, all moves rejected
b2Rb3/1RQ4n/kbP2bbr/1NPRr1NP/q1b4R/3P3n/1p5P/B2B1K2 b - - 0 1 illegal: No proof kernel
1K2N3/rB2R1P1/3r1r1P/Pq1n1b2/2NPR1b1/k1nPbN2/3B3p/NQ2b1r1 b - - 0 1 illegal: No proof kernel
R1N2b2/3P2nb/P3BB1p/Nn1qP1PP/2k2q1B/2nRqQBK/2rb4/3n4 b - - 0 1 illegal: No proof kernel
RN2r1N1/2N1Nrpr/r1P2BK1/4Qr2/2b2P1R/kb1P2P1/P2rnq2/5Bb1 b - - 0 1 illegal: No proof kernel
kq2n2K/PpPR1bQ1/1bR1P1Bb/3nn1N1/1rn5/1q1bN3/1P1RP3/R3B3 b - - 0 1 illegal: No proof kernel
1b3b2/qN5b/k2r1rnP/P2pNBp1/R3qP2/1P2B3/QnRNKP2/1nN5 b - - 0 1 illegal: No proof kernel
bBBB2Nn/q1nr2rN/1Pb3p1/bPP1r3/K1b1P3/3RkPp1/7B/1QR5 b - - 0 1 illegal: No proof kernel
BQ1N2K1/Pr1rP1P1/2r1nR1P/6N1/3pprPB/1q3bn1/2n2bR1/1N1N1k2 b - - 0 1 illegal: No proof kernel
B6k/2bB4/nPR5/1qprPr2/1B2pRNN/1PQqqn1K/2PP4/bB2q3 b - - 0 1 illegal: No extended proof kernel
R2b1RK1/6P1/1b1BB1n1/4PpbQ/2r1q1PP/2R1nbpR/1NN3P1/k3r2q b - - 0 1 illegal: Other
Q1r2q1b/1P1rN1B1/N1B2q2/1Rrq1B2/qB2p2P/2P1P2n/1P1Rp3/1bK3k1 b - - 0 1 illegal: No proof kernel
1n2B3/PrB1P2q/P4P2/b2p3B/1q1p1q1k/1rQPN3/2r2nKB/NrRR4 b - - 0 1 illegal: No proof kernel
1Rq2nR1/N1b5/pq1pPPnk/3K1nn1/Pr2PB2/2rPN2q/2Q4N/4B1N1 b - - 0 2 legal: proof: f4 e5 b4 c5 bxc5 f5 g3 h5 Bh3 b6 Bg4 Ba6 fxe5 f4 Bf3 Bd3 g4 Bf5 gxf5 Nh6 Bg4 hxg4 Kf1 Ng8 Kf2 Rh4 Ke1 Rh8 Kf2 Kf7 h4 g5 c4 Kg7 e4 g3+ Kf3 a6 a4 g4+ Kg2 b5 d3 b4 c6 b3 e6 b2 h5 Bd6 c5 Nh6 c7 Qc8 Nd2 b1Q c6 Qb6 Rb1 f3+ Kf1 f2 Ke2 g2 Ndf3 g3 Qc2 Kh7 Nh2 f1Q+ Kd2 Ra7 Kc3 Rb7 Kc4 Qf3 Bf4 Kg7 Nh3 g1N Kd5 Ne2 Ng1 g2 Rb2 Qh3 Rb1 Qd8 c8N Bc7 Nd6 Qc8 Nc4 d6 Ne3 Nd7 Rb2 Nf8 Rb4 Ng4 h6+ Kh7 Rb3 Ne5 Rb2 Nd4 Rb1 Kg8 h7+ Kg7 Rb3 Rg8 h8B+ Kh7 Bf6 Neg6 Bh4 Rh8 f6 Nf5 Be1 Rb8 Ne2 g1N Rb2 Nf3 Rg1 Ng5 Rg4 Kh6 Ng1 Qa7 Rb3 Rb4 Rg2 Rc4 Rb8 Rc3 Rg4 Rh7 Rg2 Qb6 Rg4 Bd8 Rg2 Rb7 c7 Qa7 Rg3 Rb4 Rg4 Qb6 Rg2 Qd7 c8N Bc7 Na7 Qc8 Rd2 Nh8 Be5 Ngf7 Rg2 Kh5 Qd2 Kh6 Rg8 Ng5 Qc2 Nhg6 Bf4
6n1/1n2q2Q/R1PPqk1p/3PBb1r/1RpNn3/R1R2P1B/KN1n3P/1r1q4 b - - 0 1 illegal: No proof kernel
4Rqb1/1pb1P2P/2b1bNP1/N1K1B1q1/1B1np1BP/1PB5/2nr3R/k3q2Q b - - 0 1 illegal: No possible last move, all moves rejected
1N3n1Q/2n1rb2/kq2rpN1/P1qB1RNp/PP6/R3P2r/p1PBN3/4bK2 b - - 0 1 illegal: No proof kernel
Br2Bbkr/1B3r1P/4P2R/B1Rbnp2/1p3N2/3nP1K1/1P1P1QNp/4q2r b - - 0 1 illegal: No possible last move, all moves rejected
N1q1nRq1/Q3N1R1/p4P1q/n6P/Pk5N/2Bb1pP1/P1nrrNp1/1K1B4 b - - 0 1 illegal: No proof kernel
nn1r2NN/2kR2R1/3n1p2/3K1Pr1/2p2R2/B1PP1P1r/p1P1B3/1qRQ1b1r b - - 0 2 illegal: No possible last move, all moves rejected
2KR3b/PpRQp2n/P3k2p/1B4b1/Pq1P2pr/2n5/1B1B3P/1bB1NN1r b - - 0 1 illegal: No proof kernel
4Nn2/1k1BPppn/1B1Qn1rp/4P1n1/4R1PP/2Rq1RP1/p1N3b1/rRK5 b - - 0 2 legal: proof: b4 b5 g4 c5 d4 e5 dxe5 cxb4 a4 Be7 axb5 Bh4 Ba3 Qa5 Bc1 Bg3 fxg3 Qd8 Kd2 a5 h4 d5 c4 Kd7 e4 Kc7 c5 a4 e6 d4 e5 a3 e7 d3 b6+ Kb7 Bb2 b3 Nf3 Nf6 Nc3 Nbd7 Ne1 Nf8 Nd5 h6 Rh2 Ra6 Kc1 N6h7 Nc2 a2 Bd4 d2+ Kb2 Bd7 Nf6 Bc6 Rb1 Bg2 Bb5 Qd7 Bf2 Qd3 Ne8 Rg8 Bd7 Rh8 Qg1 d1N+ Kc1 Nc3 Qd1 Nb5 Be3 Nd4 c6+ Kb8 c7+ Kb7 c8R Nde6 Qd2 Rg8 Rc3 b2+ Kd1 Rh8 Rh1 Rg8 Rf1 Rh8 Rf3 Rg8 Ra1 b1N Kc1 Rh8 Qd1 Nd2 Rb1 Ne4 Rb4 N4g5 Re4 Qe2 Qd6 Qd3 Bf2 Ng6 Nc7 Rc8 Ne8 Ngf8 Rc5 Ka8 b7+ Ka7 b8R Rac6 Ra8+ Kb7 Rc3 Rb6 Raa4 Rc4 Re1 Re4 Rh1 Rc6 Bb6 Re1+ Kb2 Rd1 Re4 Ra1 Rb1 Nd8 Qc5 Rg6 Kc1 Nde6 Qd6
5R1B/p1P1K1b1/1r4Br/2Rq1pN1/r2P3b/2BQ4/P1PB1P2/nbrrnN1k b - - 0 1 illegal: No proof kernel
BQ4N1/B1nN1n1n/1P1rbN1r/1R3P2/pp2b1pb/4KN1q/PP2P2k/r2R4 b - - 0 1 illegal: No possible last move, all moves rejected
8/pqpn2P1/qBPr1P1Q/2p2rbk/PR1R3q/rn2NN1N/PNB5/1b1K4 b - - 0 1 illegal: No possible last move, all moves rejected
6b1/qRp5/nbQPBp1q/6Bn/n2RB2K/1r1N2Np/P1PB1PrP/1k2r3 b - - 2 3 legal: proof: e4 g5 b4 a5 Bb2 d5 exd5 axb4 Bg7 g4 Qxg4 Be6 Qd1 Bc8 g4 Kd7 d4 Kd6 g5 h5 g6 e5 Bd3 b5 Kf1 e4 Kg2 e3 Kg3 h4+ Kg2 b3 Ne2 b2 Bf6 b4 g7 h3+ Kg3 b3 Nf4 e2 Qf1 e1R Bf5 Be6 Be4 Ra3 Rg1 Na6 Ne2 Qa8 Rg2 Qa7 Nbc3 b1Q Nf4 b2 Qh1 Qc1 Nd3 b1N Bg5 Nf6 g8B Rb3 Ne2 Nc3 Rb1 Na4 Bd2 Nh5+ Kh4 Bh6 Rg4 Be3 Rf4 Rh6 Ng3 Rg6 Nf1 Rg2 Ng3 Ke7 Rg4 Kf6 d6 Bc4 d5 Bb6 Nb2 Ke5 d7 Kd4 d6 Be6 d8B Bd5 B8g5 f6 Nd3 Bc4 Bde3+ Kc3 Be6 Qd2 Bc8 Bg8 Be6 Ra3 Rb4 Rb3 Bef4 Bc5 Rb7 Bb6 Nc1 Kb2 Nd3+ Kb1 Be3 Qc3 Bd2 Qa1 Bc6 Qe5 Rd4 Qf5 Bcd5 Qh7 Be4 Qh6 B4f5 Rgg1 Qc6 Rg2 Be4
3NR3/1pp3qb/3Q4/K1RP1rpB/nB2rbrP/2r1N1P1/NPrk1n1P/2N5 b - - 0 1 illegal: No proof kernel
1BR1B1r1/6P1/r2QNK2/p2pP2r/1k2Rp1N/n2PbP1R/q3RPnr/b6b b - - 0 1 illegal: No possible last move
2K2BB1/4PR1k/1pN1P2n/2p1nR2/Pq1nbN2/r2np2Q/1bPrPb2/2N4N b - - 0 1 illegal: No possible last move, all moves rejected
1b4kB/qr5P/p1N2BN1/1n2pr2/PB1r1b1R/4PP1b/2BRpPrQ/6nK b - - 0 1 illegal: No possible last move, all moves rejected
1n5N/k2p1rp1/1p1q3Q/1KB1br1P/rN3rb1/R2PPPn1/1P2NRq1/N4B2 b - - 0 1 illegal: No proof kernel
1k1Nb2R/1nrPN1r1/pp2r3/b3P3/RP1b3K/1Q1p1B1n/Pn1P1B1B/B2b4 b - - 0 1 legal: proof: f4 e5 g4 exf4 c4 h5 gxh5 d5 Na3 d4 Nb1 Qd5 cxd5 Ba3 Nh3 Be7 Ng1 Bf8 Kf2 Kd7 h4 g5 e4 f5 b3 c5 h6 Kc7 e5 g4 h5 c4 h7 c3 h6 a6 Nh3 f3 Kg3 f4+ Kh4 d3 Rg1 f2 Ba3 g3 Rg2 c2 Be2 f1B Nf2 c1R Bb4 f3 Ba5+ b6 Ne4 f2 Nbc3 Bb4 Nd6 Ra7 Bf3 Nf6 Nb7 Re8 h8B Nh7 Nd8 Nc6 d6+ Kb8 Nd5 Be2 Bg7 f1N Ne7 Ng5 h7 Ne3 h8B Nh3 Bh6 Bd7 Bf6 Nc4 Bf4 Nb2 Rh2 g2 Rb1 g1B Bg3 Bbc5 Bc3 Bgd4 Rh1 Na5 Bh2 Bc6 Bg5 Bb5 Be3 Nb7 Bf2 Bb4 Qc2 Ba5 b4 Nc4 Rb3 Nb2 Ra3 Bd1 Ra4 Bc6 Qb3 Bd7 Ng8 Re6 Ne7 Be8 Bhg1 Nc4 Ba1 Nb2 Bh2 Rc7 Ng6 Rg7 d7 Nc5 Ne7 Rc7 Re1 Nb7 Rg1 Rf7 Rg8 Rg7 Rh8
6k1/1bn1KP1p/1N4N1/p1rP1b1P/4pQ2/nBp1P2q/1RPBRNN1/1n1r2r1 b - - 1 3 illegal: No possible last move, all moves rejected
1n4kB/1nR1P1Q1/5B2/1p1qp1Kp/1P1N2bP/1q1BPB1p/3NP1b1/1rnr3R b - - 2 3 illegal: No proof kernel
2rb1q1q/2BP2qR/P1bR1ppp/1N3kPP/5n2/1KRpRPN1/5B2/r4n1Q b - - 1 3 legal: proof: c4 d5 cxd5 a5 b4 e6 bxa5 Qf6 d6 Qd8 d4 Kd7 d5 Ne7 e3 Ng8 Bc4 Ke8 d7+ Ke7 Bb3 Kd6 Bc4 Kc5 d6 Kc6 Bd5+ exd5 Kd2 b5 Kc2 d4 h4 Kd5 g4 Ke5 a4 c5 a6 h6 g5 d3+ Kb2 c4 e4 f6 a7 b4 a5 b3 h5 g6 f3 c3+ Ka3 b2 Kb3 c2 Be3 c1Q Ne2 Qcc7 Nbc3 Nc6 Nb5 Nce7 Ng3 Bb7 Bf2 Nf5 Ra3 Qe8 d8B Qg7 d7 Ne3 Rh4 Be7 Qh1 Qef8 Bc7+ Ke6 e5 Bc6 Rd4 Nf1 Rd5 Bd8 Rd4 Rc8 a8R Ne7 a6 Nd5 Rb8 Nf4 Rd5 Qc5 Rd4 Re8 Ra8 Qcf8 Rd6+ Ke7 e6 b1Q+ Ka4 Qfh8 Rc3 Qa1+ Kb4 Qa3+ Kc4 Kf8 e7+ Kf7 Rd5 Qc5+ Kb3 Ke6 Rd6+ Ke5 Ne2 Kf5 Rb8 Rf8 e8R Rf7 Re3 Re7 Rde6 Qd6 Rb6 Re8 Re7 Qc5 Rf7 Re4 Re7 Ra4 Rf7 Ra1 Rfe7 Be4 Rd6 Bc6 Rf7 Qgf8 Rh7 Qfg7 Rd4 Qce7 Rd6 Qef8 Ng3+
1N1K4/6n1/p1rBNn1Q/4pB1R/b1rR4/P1ppPPq1/1b1PBPrr/1B5k b - - 0 3 illegal: No proof kernel
R1nr1k2/r1pb1PrQ/rNBP2RK/pBr3p1/2BB3N/P1P5/pq4P1/6n1 b - - 0 1 illegal: No proof kernel
1k2BB2/1bPqr3/PN3r2/K2ppB1b/2pQ1n1N/2P1n1pp/4P1PR/2R2B1b b - - 1 3 illegal: No possible last move, all moves rejected
1r6/2npp1k1/4pRBN/P1KP2p1/1NRPPq2/B2p1p1Q/2Br1P1r/b5Bn b - - 0 1 illegal: Other
6r1/4P1Pk/3B1n1n/nN1NQq2/1RP4P/K3bB2/Q4P1B/Q1n3qr b - - 0 1 legal: proof: b4 h5 d4 c5 dxc5 a5 bxa5 b5 a4 g5 axb5 e5 e4 f5 exf5 h4 Qd3 Bb7 Ra4 Bd5 Rxh4 Be6 fxe6 g4 Qh7 Qe7 Rh3 Qf6 Rg3 Qe7 h4 Qd8 Rgh3 gxh3 Kd2 d5 Kc3 h2 Kb4 e4 g4 d4 c4 d3 g5 d2 a6 d1N g6 e3 b6 e2 a7 e1N b7 Nc6+ Ka3 Qf6 b8B Bd6 g7 Nf3 e7 Kf7 Be2 Qe5 Qh5+ Kf6 Bf4 Ne3 Nc3 Ne1 Bf3 Nd3 Nge2 Nf5 Nb5 Na5 Rb1 h1Q Rb4 Nc1 c6 Nfh6 c7 Qf5 c8Q Qg1 Nec3 Bc5 Bbd6 Be3 Bh2 Rb8 Qg5+ Kf7 a8Q Nf6 Qcc6 Kg8 Qca6 Kh7 Nd5 Rhg8 Q6a7 Rbd8 Qd4 Rb8 Qa1 Rb6 Bdf4 Re6 Bd6 Re4 Qg3 Rg4 Qge5 Rg2 Bg3 Rh2 Qa2 Rh1 Bh2 Qh3 Qa7 Qe6 Qad4 Qf5 Qda1
q1Q3b1/5B2/1qP2BN1/1rqr4/4PP2/qNRPP1k1/p3rQ2/K2N1r1Q b - - 0 1 illegal: No possible last move, all moves rejected
5BQ1/4P2B/P1b2q1n/1qPP4/b1QRPq2/RnR2rb1/r1r4N/2BK3k b - - 0 1 legal: proof: f4 c5 b4 h5 g4 d5 gxh5 e5 fxe5 d4 Bh3 a6 Nc3 Ke7 Bd7 a5 bxa5 Qb6 Nd5+ Kd8 Nf4 Ke7 Nd3 Qc7 Nb4 d3 Nxd3 Qd8 Nb4 cxb4 a4 g5 c4 f5 h4 b5 d4 g4 e4 g3 e6 Kd6 d5 Ke5 h6 g2 h7 b3 h5 f4 a6 b2 h6 b1B c5 b4 a5 b3 a7 f3 Ra4 f2+ Ke2 f1R Rh2 b2 Bd2 Rf3 Rh3 Nc6 Be1 Kf4 Qd3 Bd6 Qc3 Qf6 e7 Bc2 Qc4 b1Q Bf5 Bd7 Ra3 Qb5 Bd2+ Ke5 Rg3 Ba4 Bc1 Nd4+ Kd2 Nb3+ Kd1 Bc6 a6 Rf8 a8R Rc3 Re3 Kf4 Nf3 Kg3 Rb8 Rc2 Rc3 Kf2 Rb7 Bg3 Nh2 Kg1 Rb8 Kh1 Bg6 Qa5 Rb4 Qb5 Bf5 Qh4 Bg6 Rf3 Bf5 Qf4 Bg6 Nf6 Bf5 Rf8 h8Q Ng4 h7 Nh6 Qg8 Ra2 h8B g1Q+ Qf1 Rff2 Bg7 Rfc2 Bh7 Qf6 Rd4 Rf7 Qe1 Qgf1 Bf8 Kg2 Bf5 Qf4 Qe2+ Kh1 Qc4 Qg7 Qe2 Qfg5 Bh7 Rf3 Qe6 Qf4 Qc4 Qgf6 Qg8
3Q1r1R/PPb4k/1bRrqqR1/2N2n1P/1QB1P3/1nnQ2q1/P7/2r3BK b - - 0 1 legal: proof: f4 d5 c4 h5 b4 e5 fxe5 a5 bxa5 b5 g4 b4 gxh5 Bd7 Na3 Bb5 cxb5 Qd7 Nc4 dxc4 Qc2 Qe7 Qd1 Qd8 Kf2 c5 Kg2 g5 e4 f5 h4 Kf7 d4 Kg7 e6 f4 a6 f3+ Kh2 c3 e7 c4 e8Q g4 d5 c2 d6 f2 h6+ Kh7 b6 g3+ Kg2 b3 b7 c3 h5 b2 a7 b1N d7 Qf6 d8R Bc5 Qd6 Nd7 Be3 c1R Rc8 c2 Qd3 Qe6 Nf3 Nc3 Qd8 Ne7 Rg1 Bb6 Rc6 Rf8 Kh1 Nf5 Ne5 Nc5 Nd7 Nb3 Nc5 Rc8 Q8d4 Rcd8 Qb4 Rd6 Be2 f1Q Rb1 Kh8 h7 Qf4 Bf1 Qfh6 Rg2 Qhg6 Bg1 Qgf6 Rh2 Bc7 Rh4 Kg7 Rg4+ Kh6 Rg8 g2+ Kh2 Rd1 Rb2 c1Q Rf2 Re1 Rf4 Qe3 Rfg4 Qeg5 Rg3 Qgg7 Rg5 Rc1 h8Q+ Qh7 Bd4 g1B+ Kh1 Qd8 Qf6+ Qg6 Be2 Qb8 Qd8 Qgf6 R5g6+ Kh7 Bf2 Bh2+ Bg1 Bb6 Qd1 Qc7 Bc4 Bf4 Qd3 Qcg7 Rg2 Qg3 Rg6 Rd4 Rg8 Bfc7 Rg6 Rd6 Rg8 Qge5 R2g6 Qg3 Rh8+
6B1/r1q3P1/qQ2Nb2/p4k2/qPRP1n2/rrnb1N1R/3PR1P1/3Q1K1N b - - 0 1 legal: proof: e4 c5 h4 d5 a4 b5 c3 f5 exf5 g5 hxg5 d4 cxd4 c4 axb5 c3 b3 Kd7 Ba3 Ke8 Bb2 cxb2 f4 Kd7 b4 a5 g6 h5 g7 e5 f6 Ke6 f7 e4 b6 h4 b7 e3 Rh3 e2 Rh1 h3 Qa4 h2 Nc3 b1R+ Qd1 Ra7 Na4 Nc6 b8Q Qc7 Qb5 Nf6 Nf3 Nd8 Nc5+ Kf5 Ne4+ Nd5 Qb6 Ne6 Nf2 Be7 f8N Rb3 Rc1 Rh3 Rc3 Bf6 Rc4 Nd8 Ne6 Ba6 Rg1 Nc3 Nh1 Nc6 Kf2 Ne7 Ke1 Ned5 Kf2 Kg4 f5 Nf4 Ke1 Bg5 f6 Kf5 f7 Bf6 f8R Rg3 Nf2 h1Q Re8 Qh6 Rh1 Qg6 Rh3 Ra3 Rc6 Bd3 Nh1 Qh6 Kf2 e1Q+ Kg1 Qe4 Rc4 Qec6 Be2 Qa4 Kf1 Qh8 Re7 Qhc8 Re8 Be4 Bd3 Qa6 Bb1 Rb3 Ba2 Ra3 Nc5 Bc2 Re2 Bd3 Ne6 Nb1 Nh2 Bc2 Ng5 Bd8 Rc3 Bf6 Bg8 Rd3 Rc4 Rdb3 Ne6 Nc3 Nf3 Bb1 Qb8 Bd3 Qb6
3Q4/1bRrNP2/6nN/1rrPRn2/1Pbk2Q1/q3RQ1p/3PPn1K/qB6 b - - 0 1 legal: proof: f4 b5 g4 f5 gxf5 e5 a4 d5 axb5 d4 f6 d3 cxd3 Kd7 d4 Ke8 d5 Bd7 Ra4 Bf5 Ra1 Bc8 h4 g5 b3 g4 f5 Bb4 Ba3 Bf8 Bb4 Bh6 Bd6 Bg5 hxg5 Nd7 Bc5 Nb8 Be3 Kd7 Bf4 exf4 Rh3 Ke8 Rh2 Ne7 Rh1 Ng8 Kf2 Kd7 Kg2 Kd6 f7 Ke5 f8Q a5 g6 h5 b4 c5 g7 c4 f6 f3+ Kh2 h4 b6 c3 f7 c2 b7 c1R Qe7+ Kd4 Qd6 f2 Ra4 g3+ Kg2 Nd7 b8Q Bb7 Qh6 Ne5 Nh3 Ng6 Qg5 Rc5 Nf4 Ra7 Nc3 Nh6 g8R Nf5 Ra3 a4 Qg4 Qa5 Rc8 Rd8 Ne4 Rd7 Re3 a3 Nf6 a2 Qc7 a1Q Ng8 Q5a3 Nh6 Raa5 Qd8 Rab5 Rc7 Ba6 Kh3 g2 Kh2 g1N Bh3 f1B Qb3 Bg2 Re5 Be4 Qbf3 Bb7 Bg2 Nh3 Rc1 Rd6 Rc3 Nf2 Re3 h3 Bh1 Bd3 Bg2 Bc4 Bh1 Ngh4 Ng6+ Ne4 Ne7 Ng6 Qh5 Nf2 Qfg4+ Nf4 Be4 Rd7 Qf3 Ng6 Bb1 Nf4 Qg5 Ng6 Qgg4+
q3r1BK/1RqpP1PR/2N2nkb/3N2b1/Pr2PQn1/7P/4Q1b1/5QRr b - - 0 1 legal: proof: d4 c5 dxc5 e5 b4 a5 bxa5 Qe7 f4 Qf6 fxe5 Qd8 g4 h6 g5 Qe7 g6 Qd8 Bg5 hxg5 Qd6 Rh5 Qf6 Rh4 Qxg7 Rh8 Kd2 f5 Ke3 b5 Kd4 f4 a4 g4 e4 f3 c4 b4 c6 b3 a6 g3 c5 f2 e6 g2 Ke5 b2 e7 Rh7 a7 Rh4 c7 Rh7 c6 Rh4 Ne2 g1B Nd4 Rh3 Nc3 b1R Qh6 Rb3 Nd5 Rb5 Qf4 Bb7 c8Q Bh6 c7 Ba6 Nc6 Rb4 Bc4 f1Q g7 Qc1 Kf5 Bc5 Kg6 Be3 Kh7 Nf6+ Kh8 Rh5 Bb3 Bf1 Qa6 Bg2 c8Q Bd2 Qff1 Bdg5 Qae2 Qf4 Rg1 Qc7 Rb1 Rh4 Qca6 Qdc8 Qf4 Kf7+ Nd8+ Kg6 h3 Rg4 Qef1 Nc6 Qae2 Ne5 Bc4 Rab8 a8R Rg3 Ra5 Neg4 Rb5 Ra8 Rb8 Q8b7 Nc6 Rc3 Rg8 Re8 Rb2 Qa8 Ba2 Rbc4 Rb7 Rc1 Rf8 Rb4 Bc4 Ng8 Rf5 Bh4 Rh5 B4g5 Nc3 N8f6+ Bg8 Rcb1 Nd5 Rd1 Q1f3 Rc1 Rf1 Rd1 Rf2 Rg1 Rf1 Rh1 Rg1 Bh4 Qe5 Bf4 Rh7 Bh6 Qff1 B4g5 Qef4
bRn1K3/5n2/kpr1BR1N/Q2R2Q1/1nPP2rP/nqr2P2/b5P1/2B2B2 b - - 0 1 illegal: No proof kernel
q6b/1R1Q4/4n1nq/brp1b1Q1/3QNP1P/N3Pb2/k3PB1P/1NK3Rr b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 g3 f5 Bh3 e4 Bg4 h4 gxh4 e3 dxe3 fxg4 Kd2 Ke7 b4 Kd6 f4 g5 b6 a5 b7 c5 b5 g3 b6 a4 Nc3 g4 Ra3 g2 Qc2 g3 Kd1 Bg4 Qh7 Bf3 Qh5 Na6 b8Q+ Nc7 b7 Ne7 Ra1 a3 Rb1 a2 Rb5 a1B Bd2 Bg7 Qa7 Be5 b8N Ne6 Qg4 Ng6 Nh3 g1Q+ Be1 g2 Kc1 Qa5 Nc6 Rhb8 Rb3 Rb5 Ng5 Rd8 Qf7 Qa8 Na5 Bh8 Nb1 Bae5 Nc6 Rd7 Nb4 Ra7 Qb7 Ra1 Rb2 Qf8 Qa7 Qh6 Nc2 Qf2 Qf5 g1B Na3 Qg2 Qa4 Bf2 Qd4 Bg3 Rg1 Bf2 Bc3 Be1 Ne4+ Kc7 d6+ Kb6 Rb4 Ka5 d7 Qh1 Qg5 Qg2 Qd2 Qh1 Rb2+ Ka4 d8Q Qg2 Q2d7 Qh1 Bd4 Ba5 Bc3 Qg2 Be1 Qh1 Rd2 Kb3 Bf2 Qg2 Rd6 Ka2 Rb6 Bh5 Nd6 Qa8 Rb7 Bf3 Ne4 Bef6 Qd4 Rb3 Rg3 Rc3+ Kd2 Be5 Q8d7 Rb3+ Nbc3+ Kb2 Rg4 Rh1 Rg1 Rb5 Kd1 Kb3 Ncb1 Ka2 Kc1
qkQnK3/1p3P1R/5P1n/Qn5n/P3P1nR/1q1bBN2/r1BPR1Q1/4r3 b - - 0 1 legal: proof: f4 a5 g4 f5 gxf5 e5 b4 d5 bxa5 d4 f6 d3 cxd3 Kf7 d4 Ke8 d5 Ra7 Ba3 Ra6 Bc1 Ra8 h4 g5 f5 g4 Nc3 Qe7 Na4 Bg7 Nc5 Bh6 Nd3 Qd8 Nf4 Bg5 hxg5 exf4 Kf2 Kd7 d6 c5 g6 h5 e3 g3+ Kf3 h4 Ke4 h3 Ke5 h2 a6 c4 g7 f3 a3 g2 a7 f2 f7 c3 f6 c2 Kd5 Nc6 Nf3 g1Q Bd3 f1N Qe2 Nh6 g8Q Ng3 Qg2 Qd1 Bb2 c1N Bd4 Na2 Bc2 Nh5 e4 Nc3+ Kc5 Nb5 Be3 Qe8 Re1 h1N Re2 Nf2 Kb6 Kd8 d7 Nfg4 Kc5 Kc7 d8R Be6 a4 Rc8 a8Q Bc4 Qa5+ Kb8 Rb1 Bd3 Kd5 Qf8 Ke6 Rh7 Rd5 Nd8+ Kd7 Rc3 Rf5 Ra3 Rf4 Ra2 Ra1 Qb1 Qh8 Qb3 Rh1 Qd6+ Ke8 Qa6 Qf8 Qa8 Rh4 Rh8 Rf5 Rh7 Rg5 Rh8 Rg7 Rg8 Rh7 Rg5 Qh8 Rc5 Bd1 Rc1 Bc2 Re1 Qf8 Ng3 Qc5 Nh5 Qc8+
3K1Q2/NrN3N1/1P2Pn1q/1RqB2P1/2Q1Pn1Q/krr3p1/1r1P2n1/6Bb b - - 0 1 illegal: No proof kernel
N5b1/1q6/1B1p2RP/1qP1Q1P1/4p1NK/rn1n1P2/2Qb1BP1/rkn1Q2B b - - 0 1 illegal: Other
N2B2n1/1Q2PK2/PnrP4/1pk2bp1/1q1nB2B/PrR4Q/1P2nQ1b/1R6 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 Na3 e5 fxe5 Rh7 Nc4 Qe7 c3 Qb4 cxb4 dxc4 bxa5 Rh6 a6 Rh8 Kf2 Ke7 Kg3 c5 Kf4 b5 Kg5 f5 Kg6 c3 e4 c2 h4 c4 d4 c3 e6 Kd6 d5 f4 a3 f3 h6 f2 h5 Nd7 h7 Nb8 e7 Ra7 e8Q Rf7 h6 Nd7 e5+ Kc5 e6 Be7 d6 Nb6 Qe2 Bh4 Rb1 Be7 Bg2 f1Q Bg5 c1N Nf3 c2 Rh3 Qh1 Nd2 Nf6 Qd7 Ng8 Be4 Nb3 Qf2+ Nd4 Bh4 c1N Nc4 Qe1 Qb7 Bg5 Rc3 Bf4 Bd8 Rd7 e7 Rc7 Kf7 Ne2 Kf8 Nf6+ Kf7 Rg8 h8B Bh2 h7 Bf5 Qa7 g6 Qb7 Rc6 Bg7 Qd2 h8Q g5 Qh3 Re8 Bh8 Ng8 Be5 Qe1 Bg3 Rf8+ Kg7 Rf6 Bh4 Re6 Kf7 Qd2 Bh1 Re3 Be4 Qe1 Rc2 Rb3 Rcc1 Na4 Nb6+ Qc3 Na8 Nb6 Rd1 Qa5 Rd3 Qb4 Rc3+
qN1r1rB1/6q1/3p3P/r1RNQ1QP/1qQ1KRP1/PP6/Nnpbb3/7k b - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 h5 b3 g5 f3 b4 Bb2 a5 c3 a4 cxb4 a3 b5 axb2 Qd3 Nf6 Qd1 Nc6 Qd3 Ne7 Qd1 Neg8 gxh5 g4 Kf2 g3+ Ke1 Ng4 fxg4 Ra7 Nh3 Ra5 Ng1 Ra8 Kd2 Ke7 Ke3 Ke6 h4 f5 h6 c5 a3 d6 b6 f4+ Kd3 Kd5 e3 g2 e6 f3 b7 f2 b8N c4+ Kc3+ Ke4 e7 Ra5 e8Q+ Ne7 Qa4 Ba6 Nh3 g1Q Qd2 Kf3 Kd4 c3 Bc4 Kg2 Bg8 c2 Qc4 Nf5+ Ke4 Qe1 Nc3 b1Q Na2 Qb2 h5 Be7 Rd1 Bg5 Rf1 Qg7 Nf4+ Kh2 Qc1 Qb4 Nd5 Bb5 Rd4 Bf4 Rfd1 f1R R1d2+ Kg1 Rf2 Bg5 Rf4 Kh1 Rd3 Qc8 Rc3 Qcf8 Qd4 Be2 Rc5 Qc8 Qc4 Qcb7 Qb2 Qa8 Qf6 Bh4 Qg5 Be1 Bh7 Rd8 Bg8 Bf3+ Kd3 Bd2 e4 Bd1 e5 Ne3 e6 Be2+ Ke4 Nd1 e7 Nb2 e8Q Rf3 Qee5 Rf1 Rf3 Rf2 Re3 Rf6 Rf3 Rff8 Rf4
bk4bR/bP5B/1R1B1KP1/2pPpB1q/2Q2r1Q/b2N4/PnP5/r3Qr2 b - - 0 1 legal: proof: f4 g5 fxg5 h5 e4 d5 exd5 Rh7 g4 Bg7 g6 Bh6 g5 Bf8 Na3 Rh8 b4 a5 bxa5 b5 Nc4 Nd7 Ne3 Nb6 Ng4 hxg4 axb6 Bb7 Be2 Ba6 Bf1 Bc8 Kf2 Kd7 Kg3 f5 Kf4 e5+ Kg3 b4 h4 b3 d4 b2 h5 b1R Kh4 f4 h6 f3 d6 f2 h7 g3 g7 g2 Ne2 g1B Qe1 Nf6 g8B Qe8 Bh3+ Ng4 Ba3 f1B Nc1 Ra4 Nd3 Bb7 g6 Kc8 Kg5 Ba8 b7+ Kb8 d7 Nf2 Rh2 Nd1 Kf6 Nb2 Bf5 Bh3 d5 Ba7 Bc5 Rf4 Bd6 Qc8 d8Q Rc1 Qe4 Rcf1 Qe1 Bg4 Qd7 Qe8 Qa4 Qb5 Nc5 Qe2 Qc4 Bh3 Rd1 Qh5 Rd3 Bg4 Rb3 Bh3 Rb6 Bg4 Nd3 Bh3 Bb4 c6 Ba5 Ba3 Bb4 Bg4 Bf7 Rf8 h8Q Bh3 Be7 c5 Qh6 Rh8 Bg8 Bg4 Qh4 Ra1 Bh7 Rff1 Qd2 Rf8+ Kg7 Rf6 Qde1 Bh3 Be4 Bd7 Bf5 Be6 Bf8 Bg8 Rh3 Rc6 Bd6+ Rc7+ Kf6 Rf4 Bf8 Rf7+ Ke6 Rd4 Qhe4 Qh6 Bg4 Qc1 Bd6+ Rc7+ Kf5 Qd1 Rh6 Bf7 Bg8 Qf3+ Qf4 Qh3 Qg5 Qh5 Rh8 Re4 Bh7+ Bg8 Kf6 Rd4 Bd7 Rg4 Kg7 Rg1 Qgh4 Rf1 Be7 Rc8 Bg4 Rcf8 Be6 R8f4 Bf5 Rc1 Kf6 Ra1 Bd6#
R5b1/4q3/4pP2/1r2P2B/N2rQ2P/Q1BqpQKP/r4NbP/bk1q2N1 b - - 0 1 illegal: Other
4N1BQ/1Q1P4/P4b2/p3br1p/2pn1Pkr/Rr1PR3/q1P1pR2/BB2K3 b - - 0 1 legal: proof: h4 g5 hxg5 d5 e4 f5 exd5 Bg7 Nc3 Bf8 Ne4 fxe4 a4 b6 a5 Bb7 a6 Qc8 Ra2 Qd7 Ra1 Qd8 axb7 a5 b4 Na6 b5 Rb8 bxa6 Ra8 b8Q Kd7 f4 e5 g4 c5 g6 e3 g5 e4 d3 e2 g7 b5 d6 Ke6 g6 Kf5 d7 b4 Qc8 b3 Rh3 b2 Ra3 b1R Bg2 Kg4 Re3 Bd6 Nf3 Rb3 Nd2 Be5 Qb7 Ne7 g8R Nc6 g7 Nd4 Nc4 Qc7 Bb2 Rf8 Qa1 Rf5 Nd6 h6 Kf2 e1B+ Kf1 Qc8 Ne8 Bh4 Bc3 Be7 Ke1 B7f6 Qb2 Rh7 Rh8 Qc6 g8B Qa4 Qa1 Rb5 Ba2 c4 Bb1 Qb3 Qb2 Qa2 Bh1 Rb3 Rg8+ Kh4 Rg2 Rh8 Rf2 Kg4 Rh3 e3 Bd5 e2 Re3 Rh5 Bf7 Rf8 Bg8 Rh4 Qc1 h5 Ba1 Be7 Qd2 Rf5 Qdb4 B7f6 Qf8 Nc6 Qh6 Nd4 Qh8
1kb5/6rB/1PN2qP1/4qp2/2p1pPpn/q1B1P1KN/Q1R3PQ/q4QB1 b - - 2 3 legal: proof: b4 b5 c4 a5 a4 g5 h4 g4 c5 Bh6 Ra2 Bg5 hxg5 Ra6 Ra3 Rb6 cxb6 c5 Rah3 c4 axb5 a4 d4 Na6 Rb3 Nc5 dxc5 axb3 c6 h5 e3 d5 b7 e5 b8Q h4 c7 Kd7 b6 h3 b5 f6 b7 b2 b6 h2 Bd3 d4 Na3 b1Q Bh7 d3 g6 e4 Bb2 Nh6 Nc2 Qe8 Nb4 Qe5 Bc3 Qb2 Nc6 Rg8 Nh3 Qa3 f3 d2+ Kf2 Rg7 Qf1 d1Q Qa8 f5 b8B Nf7 Qa4 Qf6 Kg3 Ng5 Qb3 Qdd4 Qa2 Ba6 Rg1 Kc8 Rh1 Kb7 c8Q+ Ka8 Qc7 Bc8 Qfe2 Qc5 Rc1 h1Q Rc2 Qa1 Qf1 Qb5 Kh4 Qc5 Qh2 Qce7 Bg3 Qee5 f4 Kb7 Bf2 Nf3+ Kg3 Nh4 Bg1 Ka8 Ne7 Kb8 Nc6+
1nRRN3/2r1Nqn1/8/1p1P2Bb/QP1K2Q1/1R5b/1n1bPPP1/q2qQr1k b - - 0 1 illegal: No proof kernel forced: bxLB
BbQb1nK1/3Q1P2/4nNk1/1B2Pn2/1P1p2N1/B1Rq1P1r/r1rP1nb1/4N3 b - - 0 1 illegal: No proof kernel
bQ1N2r1/2PR1qb1/P1rn1P2/1NR2rRN/2p3KB/4Qrb1/2PP2nk/1n6 b - - 0 1 illegal: No proof kernel
5b2/P2bnP2/P2Bb3/NQ1p3Q/1K2n2k/P2Pr1r1/2q1BR1N/3bQbNq b - - 0 1 illegal: No proof kernel
1N2RqB1/3Pr3/B1nBR3/1q3PKp/P1q3R1/1b1q3q/r1QP1k1P/1Q1nb3 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kf7 e4 Ke8 exf5 g5 f4 Qd6 f6 Qd8 f5 Kf7 Nc3 Ke8 Nce2 Nc6 Nf4 gxf4 Qf3 Nb8 Qe2 Bh6 Qd1 Bf8 Kf2 Kf7 Kf3 e5 Kg4 c5 a3 h5+ Kg5 b5 g4 c4 d6 c3 a6 c2 a7 f3 Bh3 f2 Bb2 c1Q Rb1 f1Q Qf3 b4 Bd4 b3 Be3 e4 Bf4 e3 Qb7+ Ne7 Bg2 e2 Bh3 e1Q Qb6 b2 Qb7 Qee2 Nf3 Qcc4 Nd4 Be6 d7 Nbc6 Bd6 Rh7 Rg1 Nd5 Re1 b1Q Qb2 Qe7 Qc2 Qbb5 Rg3 Qff3 Bf1 Qed3 Rg2 Nc3 a4 Rb8 a8Q Qh3 Rg1 Nd1 Qb7 Qd8 Re4 Be7 Rg3 Bd5 Re6 Qf8 Rg2 Qa6 Qbb1 Rb2 Rg1 Ra2 Rg3 Qab5 Be2 Na5 Nc6 Bd8 Nb8 Nc6 Rg2 Bb6 Rg1 Bf2 Rg3 Be1 Rg1 Kg8 f7+ Kg7 Rg2 Qcc3 Rg3 Bb3 Rg2 Qcc4 Rg3 Qe8 f8R Qf7 Rfe8 Qf8 Rge3 Kf7 R3e4 Kg7 Kf4 Kf7 g5 Kg7 g6 Kh6 Rd4 Re7 g7+ Qf6 Re5 Qf8 g8B Qdg3+ Ke4 Kg5 Re6 Kh4 Bf1 Qgd3+ Kf4 Qg2 Rde4 Kh3 Be2 Qgf3+ Kg5 Kg2 Bf1+ Kf2 Rg4 Qh3 Bg2 Ne5 Bb7 Nc6 Ba6
qb1Q1R2/qPBQQP1K/2b2r2/n1Nk3n/7r/BPq2pq1/5PP1/3BN2b b - - 0 1 illegal: No proof kernel
N4Q1n/R1pQBkN1/2P4b/K1Pbr3/n2qR2r/n2P2P1/6Pr/3qR1nQ b - - 0 1 illegal: No proof kernel
4NQRQ/1r3Qb1/1PNr4/k1nB4/1q2qBB1/p1P1nPKP/P1b1r1n1/5r2 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 dxc5 Rh6 g4 Rh7 gxh5 Rh8 c3 b5 Nd2 b4 Qe2 b3 Qg4 Rh6 Qd1 Rh8 Ndf3 Nh6 Be3 Qc7 Rc1 Qd8 Rc2 bxc2 b4 Ng8 c6 c1Q b5 d5 h3 a5 c7 Kd7 b6 Kc6 f6 e5 h6 g5 f7 e4 h7 d4 Bf4 a4 Bc4 a3 Rh2 g4 Kf1 e3 Kg2 d3 Bb3 Kb5 Bg5 g3 Qd2 e2 Bc2 e1N+ Kf1 Nh6 Bf4 Ng2+ Bd1 Qb1 Ne2 Bg7 f8Q Qe7 Qb2+ Ka5 Qf7 d2 Ne5 Re8 h8Q Qb4 f3 Na6 Nd4 Qe4 Ng4 Bf5 c8B Ra7 Bb3 Nc5 Bd5 Rb7 Nf6 Ng4 Qb1 Re5 Ne8 N4e3+ Kg1 Bh7 Bg4 Ree7 Qe1 d1R Qff8 Rd2 Qb1 Re6 Qb3 Rd6 Qc4 Re2 Qb3 Nh4 Rg2 Bg6 Kh1 Bf5 Rg1 g2+ Kh2 Bg6 Kg3 Bf5 Rh1 Bg6 Rh2 g1R+ Rg2 Rf1 Rg1 Nhg2 Qc4 Nb3 Qc7 Nc5 Qcf7 Bf5 Nc6+ Ka4 Bh5 Bd4 Q7e7 Ne1 Bh6 Qe6 Bf4 Bc2 Qef7 Qe4 Kh4 Kb5 Rg8 N1g2+ Kg3 Bg7 Bg4 Ka6 Ne7 Ka5 Nc6+
7q/Q4n1b/PQRPKnN1/3P1p1N/BqPb1Q1n/N1r2P1r/1k2n2R/r7 b - - 0 1 legal: proof: e4 a5 g4 d5 exd5 c5 b4 h5 bxa5 Kd7 gxh5 Ke8 Ba3 Qc7 Bb4 cxb4 Be2 Qd7 Bf1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 g5 c4 b5 h4 b3 d4+ Kb4 a4 g4 a6 b2 h6 g3 h7 g2 a7 Bg7+ Ke4 e5 f3 Nc6 d6 Bf5+ Kd5 e4 h5 e3 a5 e2 h6 e1N Rh5 Ne5 Nh3 g1N Qc1 Kb3 Nf4 b4 Bh3 Ne2 Na3 b1Q a6 Ng2 Ra2 Rb8 a8Q Nh4 Qa7 f6 Rg5 Nf7 Nh5 Bg6 Bd7 f5 Ke6 Nf6 Qf4 Kc3 d5 b3 Bc6 b2 Ba4 Rb3 Rg2 Qe1 Rh2 b1R Rb2 Ra1 Qb6 Qb8 Rb1 Qh1 Qa7 Qb4 Rb2 Ra8 h8Q Bh7 Qd8 Rc8 Qdb6 Rb8 Rb1 Rh8 Rg1 Kb2 Rg5 Bf8 Rg8 Bg7 Rc8 Rc3 Rc6 Ng8 Qa5 Bd4 Q5c5 Nf6 Qcb6 Rg8 Bc2 Rg3 Ba4 Bg8 h7 Rh3 h8N Bh7 Qe4 Qc1 Qe5 Qh6 Ng6 Qf8 Qe4 Qh8 Qf4
3N4/1KP2NP1/NPn1n3/1b1Qnpr1/6Pq/3r1R1Q/rBQ1qP2/k1bBn3 b - - 0 1 legal: proof: d4 b5 h4 c5 dxc5 e5 b4 g5 hxg5 Ba6 a4 Bg7 axb5 Bc8 Ra6 Bh6 Rd6 Bf8 Rd4 exd4 Kd2 Ke7 Kd3 Ke6 Kc4 Ke5 g4 a5 e4 d5+ Kb3 h5 Ka4 f5 c4 h4 g6 d3 g7 Kd4 b6 h3 Kb5 h2 b7 a4 e5 d2 c6 a3 c7 a2 Kb6 a1N c5 Rh5 c6 Nf6 e6 Ra2 e7 Rg5 e8Q Bd7 b5 Nc2 Nc3 Ne1 Na4 Ba3 Nc5 Kc3 Ne6 d4 Nh3 d3 Qh8 Nh7 Rg1 h1Q Be2 Qe7 c8Q Nf8 Nd8 Ne6 Rg3 Qf3 c7 Nc6 b8N Be8 Qa4 d1R Kb7 d2 b6 Qe3 Bf3 Qe2 Na6 Qf6 Qg8 Qh6 Qd7 Qh4 Qd5 Bb2 Qa3+ Kc2 Qa4+ Kb1 Qh7 Ka1 Qh8 Na7 Qae4 Bb5 Qc2 Nc6 Qh5 Be5 Ba3 Bb2 Nf4 Bc1 Ng6 Nd3 Nh8 Nde5 Bc5 Rg1 Ba3 d1N Nhf7 Nb2 Qh6 Rd1 Qh7 Rd3 Rh3 Qd2 Bd1 Qe2 Rg3 Re3 Qh8 Nbd3 Rf3 Ne1 Qh6 Rd3 Qh8 Qg3 Qh3 Qh4 Bb2+
2q2b1N/1Q1QP3/2Pk2PR/1pqr4/n1B4p/1B1P1K1P/bR1B2n1/nb2r2Q b - - 0 1 illegal: No proof kernel
b1kn3K/2bPP2p/2n2Np1/N1PqQ2B/2P2rn1/1rQ3PR/3N3q/Rr5R b - - 0 1 illegal: No possible last move, all moves rejected
1q1b2R1/PQr1N1p1/Bn1p4/2rb2bn/2q1Qq1P/4RNRP/1K1PP3/3Nk3 b - - 0 1 legal: proof: f4 b5 b4 a5 c4 h5 g3 e5 fxe5 h4 gxh4 Rh5 Ba3 Bd6 cxb5 Rh8 b6 Bc5 b5 Bf8 Bb4 axb4 a4 Ke7 h3 Ke6 b7 Kf5 e6 Kf4 a5 Kg3 b6 c5 a6 f5 a7 d6 e7 f4 e8N c4 Ra5 b3 Rh5 f3 Nc3 b2 Na2 b1Q Rb5 c3 Re5 c2 Re4 c1B Qb3 Bb2+ Qd1 Qc1 Nf6 Qc4 Re3 Be6 Nd5 Bf6 Bg2 Nd7 b8R Rh5 b7 Nb6 Qb1 B8e7 Kd1 Kf2 Nac3 Qf8 Kc1 Ke1 Rc8 f2 b8Q f1Q Qc2 Qf3 Kb2 Qff4 Re8 Re5 Nd1 Bg5 Bf3 Nf6 Qh7 Bd8 Ne7 Nh5 Bb7 Bc7 Qe4 Rc5 Ba6 Bd5 Qb7 Rd8 Rh2 Rd7 Rg2 Qh8 Rgg3 Qg8 Rf8 Qh8 Rf7 Qb8 Rf8 Bd8 Rg8 Rdc7 Nf3+
Nn2Bb2/2n1B2p/R1P1n2R/PrrPP1pb/n6n/Q2Q4/KQ1qk1P1/1R6 b - - 0 1 illegal: No proof kernel
1K1k2r1/1R1PB2N/b1R1rn1Q/4RbB1/2B1P3/1P1n1Pp1/1b4Pp/nqn4Q b - - 0 1 illegal: No proof kernel
n6r/N2Q1bb1/P1prr1RR/2P3q1/7b/1Q1p1b2/P1P1k1P1/nQBN1N1K b - - 0 1 illegal: No proof kernel
Kn2r2k/2RRrR1r/6Q1/BQ4PP/2P3n1/2p1N2N/bbPpP3/q1rQ1b2 b - - 0 1 illegal: No proof kernel
1QNrbk2/p1P5/2BR3P/K1Pr1N1r/P7/P3p1bQ/3Q1Rq1/br2n1nR b - - 0 1 illegal: No proof kernel
2B3nN/n1P2r1Q/p2r1b1R/2K2P1r/1Q1PrbR1/7P/P1p1R1b1/B1qk1Q2 b - - 0 1 legal: proof: e4 c5 b4 f5 exf5 h5 c4 d5 g4 Rh6 gxh5 Nd7 Na3 Rh8 bxc5 Qc7 c6 Nb8 c5 Qd8 Nc4 dxc4 Ke2 Kf7 Ke3 Kf6 d4 Kg5 h3 b5 f6 e5 h6 e4 f3 a6 f7 c3 h7 c2 c7 b4 c6 b3 Rh2 b2 Bc4 b1R Rh1 Ra7 Qd2 Rb6 Bb5 Bb7 c8Q Be7 f8Q Bf6 Qdb4 g6 Kd2 Kf4 Kc3+ e3 Kc4 g5 Rh2 g4 Bb2 e2 Qd7 Ke3 f4 e1R Ne2 g3 Kc5 g2 Rd1 g1B Ba1 Ba8 Qf5 Re7 c7 Bg2 Bd7 Rf7 Bc8 Rd6 Rd3+ Kf2 Rg3 Nc6 Rg4 Na7 Qd3 Qe7 f5 Qe3 Qg7 Qg5 Nf4 Re4 Ng6 Qc1 Qf1+ Ke3 Qb2 Kd2 Qbb5 Qe1 Qb4+ Kd1 Qh6 Be3 Qg7 Bf3 Re2 Bg2 Qh6 Bf4 Qh5 Nh6 Qh4 Rhf8 h8R Ng8 Qh5 Rh7 Qh4 Rh5 Rh6 Rf7 Nh8 B6e5 Qe7 Bf6 Qf3 Qd2 Qf2 Qc1 Qd7 Rf8 Qh7 Rf7 Qf1+
1R2Kn1r/Q3N1R1/2B4q/1p5Q/Np2PP2/2RP1q2/nPbNP1r1/k2r2br b - - 0 1 illegal: No proof kernel
5nnB/pqp2bR1/QP2qPNb/K2Q1B1Q/PP1N4/2r1BPk1/1br5/b7 b - - 0 1 legal: proof: b4 e5 a4 b5 c4 h5 cxb5 f5 d4 f4 dxe5 f3 gxf3 Rh7 f4 Ba6 f5 Rh8 Ra3 Bb7 Rg3 Bc8 Rg4 hxg4 Kd2 Ke7 Kc3 g5 e4 d5 h4 d4+ Kb3 d3 f6+ Ke6 b6 d2 f3 g3 h5 g2 h6 g4 h7 g3 Ne2 g1B Na3 g2 Nc4 Bd4 Rg1 Bb2 Nd4+ Kf7 e6+ Kg6 e7 Kg5 e8Q Kf4 e5 Qe7 e6 Kg3 Rh1 g1B Ne5 Bh6 Bh3 Nd7 Kc4 Nf8 Kb5 Bb7 Qf1 d1Q Qf7 Rd8 Bf5 Bd5 Be3 Qd3+ Ka5 Qe4 Ng6 Qd6 e7 Qde6 e8Q Bb3 Qfd7 Qb7 Qdf7 Ba2 Nc2 Rd3 Nd4 Rc3 Qa6 Bf2 Qeb5 Be1 Qbd7 Bd2 Qd5 Ba1 Nf4 Bc1 Qh5 Bcb2 Ng6 Qe8 Qd7 Bf7 Qd5 Qe6 Rh2 Ne7 Re2 Rg8 h8B Rg7 Re1 Ng8 Nh4 Rg4 Ng6 Rh4 Rb1 Rh2 Rh1 Rhc2 Rh4 Qec6 Re4 Qd6 Re7 Qe6 Rd7 Be8 Rh7 Bf7 Rg7
3n4/qrqb2P1/2p5/1pN1QN2/2N3RP/PRbQr1Q1/KbPnP1B1/4k2b b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 f4 Qd8 fxg5 h6 g6 Ra6 g7 Ra8 g4 Be7 g5 Bc5 g6 Bf8 Bg5 hxg5 Kd2 Ke7 Kc1 Ke6 Kb2 Kf5 h4 Kg4 e6 Kg3 e7 Kf2 e8Q f5 a3 d5 a6 b5 a7 g4 Qe4 d4 Qed3 f4 Qc4 d3 Qc6 f3 Kb3 g3 Qf6 g2 Kb2 d2 Qf5 Nf6 g8Q Rh7 Rh2 Bd7 Qc1 d1Q Qe4 Ke1 Qg5 f2 Qf3 Bb4 Nc3 Ne4 Qd3 Nc6 Ka2 Nd2 Na4 Bc3 Rb1 Qb8 Q8d5 Nd8 Nc5 c6 Qgg3 Qc7 Qde5 Re7 g7 Rb8 a8N Rb7 Rb3 Re8 Qef5 Re3 Qfe5 Qc1 Nb6 Qd1 Nh3 g1B Bg2 Qc1 Ng5 Bb2 Qgf4 f1B Nc4 Qd1 Nge6 Bc3 Bh3 Bg2 Nd4 Bh1 Rg2 Bh2 Rg4 Bb2 Qff6 Bc3 Qeg5 Be5 Nf5 Bb2 Qe7 Bec3 Qe5 Re4 Rg1+ Kf2 Na6 Qe1 Rg3 Qg1 Bg2 Ke1 Qg6 Qa7 Nc5 Re3 Qg4 Qcb8 Qh3 Qc8 Rg4 Qc7 Qhg3+
2b3n1/4p3/rp2B3/1Pkn1b1n/2BPQ3/1p1PQP2/4RBP1/1qQNRrbK b - - 0 1 illegal: No possible last move, all moves rejected
bQ1Q2RQ/2PpB3/PK1n2n1/3Prp2/1k3N2/3r2Pp/nb1N1P2/2rqNR2 b - - 0 2 legal: proof: e4 a5 b4 f5 bxa5 g5 h4 c6 hxg5 Qc7 e5 Qd6 Bb5 Qf6 exf6 cxb5 Ke2 h5 Kd3 e5 c4 b4 a4 b5 a6 h4 f7+ Ke7 g3 Kd6 g6 Kc5 a5 e4+ Ke3 b3 d4+ Kb4 c5 b2 a7 h3 g7 Nh6 g8Q Bg7 f8Q Bb7 d5 Nf7 c6+ Nd6 Nd2 b1R Qe7 Bb2 Qed8 Rh7 Qdg4 Re7 Qf4 Re5 Qh8 Na6 Ra3 Nc5 Rc3 Nd3 Kd4 e3 Ngf3 e2 Rf1 e1Q a6 Qd1 Ne1 Rb8 a8N Rc8 Nb6 Ba8 Nbc4 Ra1 Ne3 Ra3 N3g2 Rb3 Qg4 Nf4 Qgg8 Ng6 Qge8 Ka3 Kc5 b4 Rc2 Rd3 Nf4 b3 Kb6 Kb4 Rc3 Ba1 Qef8 b2 Qfg8 b1N Ba3+ Ka4 Rb3 Nc3 Bb4 Na2 Bc5 Nb7 Be7 Nd6 Qge8 Rc7 Qb8 Bb2 Qed8 Ree3 Rb4+ Ka3 Re4 Rc8 Re6 Re5 Rf6 Kb4 Rf8 Rc3 Rg8 Rc1 Qf8 Re8 c7 Re3 Bd8 R8e5 Be7 Rd3 Qfd8
R3r3/r1PpB2q/b1r1P1k1/4RPbp/3PQ3/1B1b1B2/p1R2KnP/n3NQ2 b - - 1 2 illegal: No possible last move, all moves rejected
N3r2N/q1BqPP1b/rbnQ1RB1/4BP2/4p3/1KPp2Q1/1n1QP1p1/4bk2 b - - 0 1 illegal: No proof kernel
3B4/q1b1p3/RpkP4/P2R2Rr/2Qp2qn/N4N1b/K1PP1nrP/3rN1Q1 b - - 0 1 illegal: No proof kernel
5kR1/N1K1pr2/2BQQ1p1/nrn3Rq/2p1BPP1/2PnbR1n/bB1P1P2/8 b - - 0 2 legal: proof: a4 b5 axb5 f5 h4 d5 h5 g6 h6 d4 e3 f4 exf4 d3 c3 Qd5 Na3 Qd4 Nc2 Qg7 hxg7 dxc2 Ke2 c5 Kd3 h5 Kc4 a5 Kd5 c4 b4 a4 g4 h4 b6 a3 b5 h3 b7 a2 b6 h2 Bd3 Na6 Kc6 Rh7 b8R Nh6 g8B Bg7 b7 Kf8 Bb2 c1N Be4 Nc5 Kc7 N1d3 Bgd5 Nf7 Nf3 Ng5 Qe1 Bd4 Bc6 Rf7 Ne5 Ra5 Ra8 Rb5 b8Q Nh3 Rg1 h1Q Rg3 Rf5 Rf3 Rf7 Qe3 Qh2 Rh1 a1N Ra5 Nab3 Qe2 Ng1 Qe1 Qh8 Rh7 Be3 Rg7 Qh5 Qb6 Bf5 Qe2 Nb4 Qd3 Nh3 Qd6 Nbd3 Qe6 Na4 Qd4 Nac5 Qdd6 Nbc1 Bd7 N1b3 Nc6 Ne5 Na7 Ned3 Ra2 Na5 Bdc6 Nb4 Bed5 Bb1 Be4 Nbd3 Ra3 Rb8 Rb3 Ba2 Rb5 Ncb3 Rf5 Rb5 Rg5 Nbc5 Rg8+
r2R4/1n4qr/2Bb1b1n/p4QrQ/PppP4/P2Q1NP1/2P1R1NK/N1k3r1 b - - 0 2 legal: proof: h4 g5 hxg5 d5 e4 f6 exd5 Bh3 b3 Bg4 Bb2 Bd7 Be5 Ba4 bxa4 fxe5 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb4 d6 c5 d7 h5 f5 a5 f6 b5 g6 c4 f7 e4 g7 e5 Kh3 e3 Qe2 e4 Qd3 h4 Be2 Bd6 f8Q Rh7 Bf3 e2 Nd2 e1B Qe3 Qc7 d8N Na6 Ne6 Nc5 Qe2 Ka3 Qd3+ Kb2 a3 e3 Qff5 b4 Nb3 e2 Nf4 Nb7 Kh2 h3 Bc6 Bh4 g3 e1R Ng2 Nh6 g8Q Qg7 Qgf7 Bf6 Q7h5 Re5 Re1 Rc5 Re2 Rb5 Na1 Kc1 Ne1 Re5 Ngf3 Rd5 Kg1 h2+ Kg2 Re5 Rf1 h1R Rff2 Rf1 Kh2 Rd5 Ng2 Rg1 Re8 Re5 Re2 Rc5 Rd8 Rd5 Qe6 Rg5 Qef5
2q2Nk1/2R1pr1Q/1P2b2n/K1pQ4/RB4NN/3rP1p1/P1Pn1rRP/3n1r2 b - - 0 1 illegal: No proof kernel
1Q2N3/1q1pP1Bb/2kP1r1r/2pr1n2/pnb5/2NB1P1p/P1N1P1B1/K5QR b - - 0 2 illegal: No proof kernel
2b4Q/b1Q1pPPB/bNR1Rn2/1RKp4/6qN/pNn1P1r1/P2pP3/k1r5 b - - 0 2 illegal: No proof kernel
r3BRBR/ppb2P2/3pPnbP/4BR1r/1Nn4n/2K4p/Q2P1QP1/k3q3 b - - 0 1 illegal: No proof kernel
R3nr2/pR2nQ1b/KPpkp3/1pP1q1n1/1P2B3/1P1RQ2P/2Q1q1r1/1N5N b - - 0 1 illegal: No possible last move, all moves rejected
r3Qq2/rRK5/rP2p1bR/2k1NRPp/1bNP2p1/1p2P1BP/4r1n1/2N4Q b - - 0 1 illegal: No possible last move, all moves rejected
3K3b/Q1Np1R2/pq1pBP1R/3pr2n/PBpP2b1/4rPk1/BP1n3Q/2R5 b - - 0 2 illegal: Other
2Q5/pbN1nK2/BP2Q1PQ/1N2b1Rr/1p2pp2/1P3P1k/3P1pNB/2q1rn2 b - - 1 2 illegal: No proof kernel
3B3Q/KN1prpNQ/pB2R2r/q1rkp3/p2PP3/2Pn1n2/PN5P/q2B4 b - - 0 1 illegal: No possible last move, all moves rejected
2Q1rR2/3Qpn2/3P2n1/4Pr1p/KpRppP2/1NR2n1P/1P1bNn2/3k1B1Q b - - 0 1 illegal: No proof kernel
3NQ1NB/1RKPpp1q/B2p4/Q4rpP/4n3/rb1PPQ2/1nn2PB1/2b2kr1 b - - 0 1 illegal: No proof kernel
N7/2Pb2k1/1RBprp1N/1Kb3pr/1pQP1NPQ/1P3P1q/p3p3/1b2QRn1 b - - 0 1 illegal: No proof kernel
1b2r3/1P1N1P1P/R1r1N2P/3Pq3/Nn2b1k1/4pN1n/B4B1n/2N1KQ2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 g5 f4 c5 dxc5 a5 b4 a4 f6 a3 f5 Ra5 Ra2 Ra8 Re2 a2 Re4 a1R Rf4 R1a5 bxa5 gxf4 h4 Kd7 a6 e5 a7 e4 c6+ Kd6 f7 Ke5 b6 f3 f6 Kf5 c7 Be6 c8N Qd7 b7 Rh6 Nd2 Qe7 Bc4 Qd7 Ne2 Bb4 f8N Na6 f7 Kg4 Ba2 Qd6 Nd7 Bf5 Ncb6 Qe5 Na4 Re8 a8N Rc6 h6 Nf6 h7 Bd6 h5 Nb4 h6 Nh5 Nc7 Nf4 Ne6 Bb8 Ba3 Bg6 Nc1 Nh3 Bb2 Bf5 Bd4 Bg6 Bg1 e3 Qe2 Bb1 Qf1 Bf5 Rh2 Be4 Rg2+ Kh5 Rg6 f2+ Ke2 Kh4 Nf3+ Kh5 Qe1 f1N Bf2 Nh2 Qf1 Ba7 Ke1 Bb8 Neg5 Kg4 Re6 Rc3 Ra6 Rc6 Ne6
3RRN2/1N1P1PnK/4Rbrp/P2nQ2p/q2n4/1B1P4/3p1P1p/R1k1r2R b - - 0 1 illegal: Other
Nq3q2/4NNPQ/5R2/rB1PprR1/P2r3P/n1bN2K1/2pqP3/n1N1k2b b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 g4 h6 g6 Qd6 g5 Ra6 g7 Qb4 g6 Qd6 Bb2 Ra8 Bf6 Qd8 Bg5 hxg5 Kf2 Kd7 d4 Kd6 a4 e5 h4 b5 a6 f5 a7 c5 Nf3 c4 Kg2 g4 Qc2 c3 Ra3 g3 Kh3 f4+ Kg2 b4 Nfd2 b3 Qf5 c2 Qe4 b2 Kf3 g2 Qe3 g1Q Qb3 Nh6 g8N Nc6 g7 Qf2+ Ke4 f3 Nf6 Nf7 Bh3 Bb7 Rf1 Na5 Qa2 Nb3 Ng4 Na1 Nc3 b1Q Nb3 Rh5 Bg2 Rf5 Nc1 Qb8 Qc4 Qb4 Qd3 Qe1 Rb3 Qd2 Nf2 Be7 Rb1 Bd8 Bh3 Ba5 Rg1 Qf8 Rg5 Bc6 Rb2 Qbb8 Rb6 Bb4 Qc4 Ba5 Nfd3 f2 Ra6 f1R Qb3 Rf6 Bd7 Rd1 Qb6 Rf5 Qd8 Qe7 Qh8 Qef8 Qh7 Bb4 N3a2 Bc3 Nab4 Nd8 Be8 Ne6 Rb6 Nc7 Ra6 Qb6 Bd7 Bb7 Nc6 Nb5 Ne7 Na3 Bb5 Bc6 Nf4 Qbd8 Kf3 Qb8 Kg3 Kc7 Ra5 Kb6 d6 Bh1 d5 Kc5 d7 Kd4 d8N Ke4 Nf7 Ke3 Kg4 Kf2 Ra6 Ke1 Rf6 Qe3 Na2 Rd4 Nc1 Qd2 Kg3 Qd6 Rg4 Rd8 a8N Qb8 Rgg6 Rd7 Rg4 Ra7 Rg5 Ra5 Nfd3+
q1NRb3/pP1q2R1/3P2RN/1nq1p2b/6n1/r1b1rBK1/PkPR2P1/3RQ3 b - - 0 1 illegal: No proof kernel
4nkBn/4PB2/N2b4/nNq1pQ2/r2n4/BP1nB1Pp/1P1KPR1r/3b1B2 b - - 0 1 illegal: No possible last move, all moves rejected
1KRr1kBB/1n4rn/P2N2P1/1P1n2pB/3Q1PP1/3B3p/3bB2R/2rbr1q1 b - - 0 1 illegal: No proof kernel
5BNN/nrRPKb1B/1p3p2/nb2p1P1/1PP1k1nN/N2N1b2/4P3/4q1Qr b - - 1 2 illegal: No proof kernel
3bN2R/1q2pqnp/B2P1b2/RQ1PP1p1/nn2P1r1/2rR4/kB4P1/1R1R1K2 b - - 1 2 illegal: No proof kernel
1nBBR3/1r2N1r1/bkP1p3/8/1Pqp3P/1Bp1b3/Q2qPbP1/1N1BBKn1 b - - 0 1 illegal: Other
8/2n1p1K1/1q1N1rbp/1NNB2r1/nP1N1QpP/2n2PPk/1p1R1PR1/b2N4 b - - 0 2 legal: proof: b4 b5 c4 d5 cxd5 f5 a3 g6 Nh3 f4 Ng1 f3 exf3 Bg7 Ra2 Ba1 a4 a5 axb5 a4 Bb2 a3 Bd3 axb2 Be2 Bh3 Bf1 Bc8 Ke2 Kd7 Ke3 c5 Ke4 c4 h4 h6 d4 c3 b6 g5 Kf5 c2 Kg6 c1N d6 Ke6 d5+ Ke5 d7 Kf4 b7 g4 d6 Ra4 g3+ Ke5 Kg7 Kf5 Nc3 Ra3 Nb5 Na6 b8N Nb3 Qd2 Nc7 Rh2 Nc5 Ne2 Na4 Na6 Nf6 Nec3 Nfd5 Rg2 Rf8 Nd1 Ndc3 Nc5 Rf6 Bc4 Ke5 Bd5 Ba6 Qc1 Qb8 d8N Qb6 d7 Bc8 Nd6 Kd4 N8f7 Ba6 d8N Bd3 Qf4+ Be4 Nce6+ Kd3 Nc6 Ke2 Nb5 Kf1 Nfd6 Bd3 Nc5 Bg6 Rh2 Kg1 Rg2+ Kh1 Rg1+ Kh2 Rg2+ Kh3 Ncd4 Ne2 Na6 Re3 Nc5 Re5 Ra3 Rg5 Rd3 Nec3 Rd2
n5n1/1q1NP1PB/1p1pN3/P3p1NK/1P2rPNN/r1k5/5pRr/bQ1b1R2 b - - 0 1 illegal: No proof kernel
k2b4/q4b1P/6p1/RpRn3p/Pp2K2R/1Pp1BR1r/B1P1NbP1/n4Q1R b - - 1 3 illegal: No proof kernel
2n3B1/qp1pbn2/1rkP1B2/PB1b2p1/2rR2K1/B2N2B1/1P1P1NPq/1Q3qn1 b - - 0 1 illegal: Other
N3n3/1P6/bPbP4/R1Q1PNbK/2pRN3/1q5B/kPb2NR1/1rr1r2n b - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 b5 a4 g4 axb5 g3 hxg3 Qf6 g4 Qe7 g5 Qd8 d3 d6 c5 Qd7 Be3 Qc6 Bd4 Qb6 cxb6 Be6 Be3 Bc8 Bc5 dxc5 Kf2 Kd7 Kf3 Ke6 Kg4 Kd5+ e6 a5 g6 h5+ Kg5 f5 g4 h4 g7 a4 b7 h3 e3 h2 d4 f4 e7 f3 e8N c4 b6 c5 Kg6 c3 g5 c2 Qc1 f2 Qd1 c1R Nh3 a3 Qd2 a2 Ba6 f1B Qf2 Nh6 g8R Bf5+ Kh5 Be7 g6 Bg5 g7 Bc2 Nd2 Nd7 Ne4 Rh7 Rg1 h1B Rg4 Rb1 Qf8 Rc8 Nhf2 Re1 Rd1 a1Q Rg2 Qa4 Bd3 Qb3 Nc7+ Kc6 Na8 Kd5 Bb5 Bc4 Ba4 Ba6 Bc6+ Kc4 d5 Rc7 d6 Rh8 Qf5 Kb4 Rd3 Rb1 Rc8 Re8 g8N Ng4 Nh6 Re5 Bd5 Re7 Be6 Ndf6+ Kg6 Ne8 Kh5 Rc6 Qd5 Rcc7 Nf5 Rc6 Nd1 Nf2 Rd4+ Qc4 Qe5 Kb3 Rc7 Ka2 Qd5 Nh3 Ndf2 Qb3 Bc8 Rg7 Re7 Rc7 Re5 Rge7 Nd1 Nf2 Qc6 c4 Rb5 Re6 Qc5 Rf7 Ng7 Re5 Bh3 Rf3 Nf5 Rg3 Rh2 Rg1 Rg2 Re1 Nf6 Re7 e4 Rg7 e5 Rg6 Rh2 Bc6 Rg2 Nh1 Nf2 Rec1 N6e4 Rf6 Ne7 Rf3 Nf5 Re3 Rh2 Re2 Rg2 Ree1 Ra5+
1kB5/B2R1P2/BK4Np/3q1Pnr/1P5n/1b1PNN1N/1Q1Pr3/rqr3r1 b - - 0 1 illegal: No possible last move
b2RRK2/1n1BP2b/P1q2B1P/1PBb4/N1b4p/RR2bP1n/2r5/2Qk1q2 b - - 0 1 illegal: No proof kernel
B1KB1R2/3P4/2P1p2b/3R2Pq/3PRNb1/1rbP1n2/2qB1BQ1/b2kq1n1 b - - 0 1 illegal: No proof kernel
qk1bR2K/1N5N/3rN1rb/3P4/PR4b1/pPR4p/1Q2qBPP/1N1r3q b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 g6 cxd5 Be6 f6 Bc8 f4 a5 b3 Qd7 f5 Nh6 Bd3 Qd8 f7+ Kd7 f6 Ng8 Bf5+ gxf5 Nh3 b5 Nf2 b4 Nh3 a4 Ng1 Na6 Ba3 Nc5 Bb2 a3 Bc1 Na4 bxa4 b3 Kf1 b2 Ne2 Nh6 Kf2 Ng4+ Ke1 Nf2 Ng1 Nd3+ Ke2 Nc5 Ke1 Nb3 axb3 Bh6 Ne2 Bg7 Ng1 Bf8 Kf2 e5 Ke3 h5 d4 c5 d6 h4 d5 f4+ Ke4 h3 Kf5 f3 Kg6 c4 Qf1 c3 Bf4 e4 Bg3 c2 Qf2 c1R Qd4 e3 Bf2 Ra6 Ne2 Bh6 f8R Rd1 f7 Rg8+ Kh7 Rg6 Nf4 e2 Re8 e1B Ne6 Ba5 Rf1 Rb6 Kh8 Rc6 Nd2 b1Q Qb2 Qe4 Rb1 Qe2 Rc1 Bc7 Nb1 Rb6 Bh4 f2 Rc3 Ra6 Re1 f1Q Bf2 Qh1 Rf1 Qe7 Re1 Bd8 Rf1 Rc6 Re1 Qa6 Re4 Qa8 Rec4 Ra6 Rb4 Rc6 Nf4 Qe2 Ne6 Ba6 f8N+ Kc8 Nh7 Bc4 Bb6 Kb8 d7 Rd6 Bf2+ Bb5 Rg4 Ba6 Rd4 Bc8 Rb4+ Bb6 d8N Bd7 Nd4 Bg4 Nb7+ Bd8 Ne6
k2N2KB/P1N1PrNB/r1P5/1p1P3R/2qpQB1n/4N1b1/2b1P2p/1n1n4 b - - 0 1 illegal: No proof kernel
1R3B2/ppnK1N2/1B3R1p/1PR2n2/1bQ4q/b1P5/PPB2PR1/r2k2qq b - - 0 1 legal: proof: e4 f5 exf5 c5 Bd3 c4 Ke2 d6 Kf1 c3 Qe1 Be6 Qd1 Na6 Ke1 Rc8 Bf1 Rc5 dxc3 Rb5 Bf4 Rb6 Bc1 Rb3 cxb3 g5 g4 Qb8 h4 Bh6 h5 Nf6 Nd2 Qc7 Ndf3 Bd7 Nh4 gxh4 g5 Qd8 g6 Bf8 g7 Ng8 Be3 Be6 Bh6 Bf7 Bc1 Bg6 hxg6 Qc8 Nh3 Qd7 Ng1 Qd8 Ke2 Kd7 Kd3 Kc6 Ke4 Kc5 f6 e5 Kf5 h3 Ke6 h2 f7 d5 Bb5 d4 Bd3 e4 Be3 Nc7+ Kf5 Ne7+ Ke5 Nf5 g8R Qh4 Nf3 h6 Re1 h1Q g7 Be7 Rb8 Rd8 g8R Re8 Bf4 e3 f8B e2 Bc2 d3 b4+ Kc4 b5 d2 Rg5 Bb4+ Kf6 Rd8 Be3 Rd3 Rg1 e1B Qe2 d1Q Bb6 Bd2 Rg2 Qdg1 Re1 Be3 Qf1 Bf4 Re6 Bfd6 Kf7 Bdc5 Rf6 Ba3 Qe2 Bcb4 Qe6+ Rd5 Qc8 Rd6 Rh5 Rd1 Ng5 Nd6+ Ke7 Ra1 Kd7 Nf5 Bb3+ Kd3 Bc2+ Ke2 Nf7 Ne3 Rc5 Nf5 Qe8+ Kd2 Qe4 Kc1 Qc4 Kd2 Bb1 Kd1 Bc2+
8/1bP2pq1/p2N2N1/1r1pP3/R2Bn3/1PP2P2/1QN1K1p1/NkqBnBr1 b - - 0 1 legal: proof: d4 b5 h4 e5 dxe5 b4 g3 b3 axb3 c5 Ra6 c4 Rg6 c3 bxc3 Be7 h5 Bh4 gxh4 h6 Rg5 hxg5 e4 Ke7 e6 Kf6 h6 Ke5 h5 d5 f3 a6 e7 g4 e8B g5 h7 g3 h6 g4 Na3 g2 Ke2 g3 Rh4 Bh3 Bb5 Ra7 Bb2 Qc8 Qa1 Ke6 e5 Kf5 Ra4 Nd7 c4 Bg4 c5 Ra8 c6 Rb8 Bd4 Ngf6 c3 Qf8 c7 Ne4 Bc4 Qg7 Nc2 Rhg8 h8N Rb5 h7 Kf4 Qa3 Ndc5 Na1 Bc8 Bd3 Bb7 Bc2 Nd3 Bd1 Ne1 Ng6+ Kg5 h8N Kf5 Nh3 g1Q Ng5 Qh1 Nh4+ Kf4 Nf5 Qg1 Ne3 Qh1 Nec2 Qg1 Bh3 Qe3+ Kf1 Qc1 Ke2 Nc5 Qa2 Qf8 Bf1 Rg6 Na3 Qg7 Ne4 Rg5 Nd6 Ne4 N3c2 Rg4 Bb6 Rg5 Nd4 Rg4 Bg2 Rg5 Qa3 Rg4 Kf1 Ke3 Ng6 Kd2 Ba7 Qb2 Bc5 Kc1 Ndc2 Kb1 Ke2 Qc1 Bf1 Rh4 Ne7 g2 Ng6 Rh1 Bd4 Rg1 Qb2+
8/2Qq1bn1/1K5R/1P2BNp1/B1PrbPnr/k3P1PB/2qN1N1b/1N2n1r1 b - - 0 1 illegal: No proof kernel
b2q1n1N/2N2R1b/1P2N3/kBQ3r1/P1KPp1B1/2n1P1Bn/r2P3B/1n4br b - - 0 1 illegal: No proof kernel
Rb1b1B2/1QB1q3/N2RqPK1/4kpBB/n4PRp/1n2nb1r/1P2P2P/7r b - - 0 2 illegal: No possible last move, all moves rejected
2nrB3/1npPR1NB/Nb2bNp1/BK1PQ2q/4P1P1/1P3qn1/3N4/1k4rb b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 axb5 d5 fxe5 d4 Ra3 h4 Rg3 d3 cxd3 hxg3 d4 Ke7 d5 Ke8 e4 Kd7 Ke2 a5 Kd3 f5 Kc4 g2 d4 g6 h4 a4 b3 f4 h5 a3 d6 Ke6 h6 a2 h7 a1Q b6 f3 b7 f2 d7 Qc3+ Kb5 Nc6 b8N Qf3 Ne2 g1N Nd2 Na5 Na6 Qg5 Nc3 Qh5 Nd5 Bc5 Bc4 f1B Rh2 Ne7 Nf6+ Nd5 Rf2 Rd8 h8N Bb6 Nf7 Bg2 Nd6 Bh1 Nde8 Ne2 Qe1 Ng3 Ng7+ Kf7 Rh2 Nb7 e6+ Ke7 Qe3 Kd6 Qg5 Ne7 Bb2 Ra7 Bc3 Ra8 Nb8 Ra3 Na6 Ra1 Ba5 Rg1 Qf5 Qg5 Rh8 Qh5 Re8 Nc6 Ka4 Na7 Re7 Kc6 Ka3 Kd6 Qe5+ Kc6 Bd5+ Kb5 Re8 Nc5 e7 Bb7 Nh7 Nc8 Bg8 Bd5 Nf6 Be6 d5 Nb7 Bh7 Qg2 Rf8 Qf2 e8B Qf3 Nb8 Kc5 Rf7 Kb5 Re7 Kc5 Qd6+ Kd4 Ka4 Kd3 Na6 Kc2 Qe5 Kc1 Kb5 Kc2 Nc4 Kb1 Nd2+
n1Rn1R1r/2P3p1/2kNN1PR/1pPb4/1r2RPqP/1n2b3/KN1rBQ2/7r b - - 0 1 legal: proof: g4 f5 d4 c5 dxc5 a5 e4 h6 b4 Qb6 bxa5 Rh7 exf5 Qc7 g5 Rh8 g6 Qd8 Bg5 hxg5 Kd2 d5 Kc3 Kd7 Kb3 b5 f4 e5 c4 g4 a4 d4 f6 g3 a6 g2 a5 d3 a7 e4 a6 d2 f7 e3 Na3 e2 Qc2 e1N Nf3 d1R Nd2 g1R Be2 Nf3 Ne4 Ne7 Nd6 Nd2+ Ka2 Bb7 c6+ Kc7 Rb1 Qc8 Rb4 Nd7 h3 Kb6 c7 Nc6 Qb2 Be7 f8N Nb3 Ne6 Nd8 c5+ Kc6 Qc2 Bh4 Re4 Rd2 Nac4 Nb6 Nb2 Bf2 Rh2 Be3 Rh1 Rb8 a8R Rb1 Rh2 Rh1 a7 Rd4 Qd2 Rb4 Qe1 Qd7 Qf2 Rc8 Nf8 Qg4 Ne6 Rh5 Rb8 Rd5 a8R Rd2 Ra3 Nf7 Raa8 Rh8 Rf8 Nd8 Rc8 Na8 Rg2 Qg3 h4 Qh3 Rg5 Qg4 Rgf5 Kd7 Rh5 Bd5 Rh7 Kc6 Rh6
1Rrn3n/R6B/4b3/1P2Q1r1/kp1pPNP1/3P3r/BPR2q2/n1KbBBn1 b - - 0 2 illegal: No extended proof kernel
1KBb2nn/1Pp2r2/1b2P1k1/p3B3/P1PBNrR1/1r3P1q/Q1RrRn2/R7 b - - 0 2 legal: proof: g4 e5 d4 b5 dxe5 g5 a4 f5 h3 b4 Na3 bxa3 Qd5 Bb7 Qd1 Bf3 gxf5 g4 Bg5 g3 Bc1 Bg4 hxg4 Bg7 Kd2 Bh6+ Ke1 Bf8 Kd2 Kf7 Kc3 a5 Kc4 d5+ Kb5 h5 b4 g2 e4 h4 c4 h3 f3 h2 g5 a2 f6 d4 e6+ Kg6 e7 d3 e8R d2 f7 Rh4 e5 Bd6 f8B Rf4 Qe2 d1N Bb2 Rh4 Bg7 Kf7 Nh3 g1B Bd4 Be7 Nf2 Kg6 Ne4 Nc6 Bh3 Rf4 Bc8 Rb8+ Ka6 Qd7 b5 Qh3 b6 Nd8 Ka7 Nf2 b7 Nf7 Rc1 a1R Qa2 Rb1 Rc2 Rb3 Bf6 Bd8 Re6 Kh5 g6 Nh8 g7 Kg6 Re8 Nd3 Re7 Bf2 Rd1 h1R Ra1 Rd1 Re8 Be3 Re6 Nf2 Re8 Nh6 Re6 Rd2 g8R+ Kh7 Rg4 Ng8 Rd6 Kh6 e6 Kh5 Be5 Kh6 Rh4+ Kg6 Rg4+ Bg5 Bd7 Rbf8 Bc8 R8f6 Kb8 Rf7 Bc3 Bb6 Bcd4 Kh5 Rd5 Bd8 Rb5 Rc3 Rbb1 Rb3 Re1 Kh6 Re2 Kh7 Ng5+ Kg6 Ne4+
2q1n3/K3PPr1/N1kRP2p/1r2qpRP/R1b5/2B2q2/NQ2Rn1P/3Nbq2 b - - 0 1 illegal: No proof kernel
K2Nr3/4r3/Qr1p2P1/1r1PbN1q/bqk3R1/PR6/1pPP3B/n2nN1NR b - - 0 1 illegal: No proof kernel
1N1qqk2/P1N1nB1K/p1P1qBnQ/1N3P2/r2R1bpn/P5P1/5BN1/2r4r b - - 0 1 illegal: No extended proof kernel
B1B2r1N/N2NQn2/2P1Np2/2pR3r/p3br1n/3nPPq1/PBk1P3/3b3K b - - 1 2 illegal: No proof kernel
q2N3r/np1RRp2/2bP4/Pp3N1R/Qb1P1Nrr/2R1nkBP/1P5K/1n6 b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 fxe5 a6 c4 Bf5 cxd5 Nd7 Bh3 Nb8 Bg4 Bc8 Bd7+ Ke7 Bb5 axb5 Nc3 Kd7 Nb1 Ke8 Kf2 Kd7 Kg2 c5 e4 g5 d4 c4 a4 c3 a5 g4 h6 g3 d6 Ke6 h7 c2 Na3 Ra6 Ne2 Qh4 Bf4 c1N Nc4 Nf6 Ne3 Ng4 Nf5 Qd8 Ra3 Nc6 Qa4 Bd7 Rc3 Qa8 h3 Be7 Re1 Na7 Kg1 g2 Bg3 Ne3 Kh2 Bc6 Nf4+ Kd7 Re2 g1R Rec2 Na2 e6+ Ke8 e5 Bh4 e7 Kd7 e8R Bg5 Bf2 Rg4 Bg3 Rh4 Rc1 Rg8 h8R Bh6 Rc5 Rgg4 R5c3 Bg5 Rh5 Bh6 R3c2 Nc3 Re6 Nb1 Rc3 Bh1 R1c2 Rc6 Re2 Rc8 Re1 Rh8 Re7+ Kd8 e6 Bc6 Rc7 Ke8 e7 Bg5 Rc8+ Kd7 e8N Bh6 Neg7 Bg5 Ne7 Bh6 Ngf5 Bg5 Ng2 Ke6 Rd8 Bh6 Rd7 Bf4 Nc8 Kd5 Nce7+ Ke4 Re2 Kf3 Re1 Be4 Nc6 Bh6 Nd8 Bc6 Rc4 Nd1 Re8 Bd2 Ree7 Ne3 Nf4 Bb4 Rc3
N1B4K/1Pr3p1/pp1Pr2B/2nP1N1n/2r1Q2R/3N3b/2k2nPP/q1N1b1B1 b - - 0 1 illegal: No proof kernel
b1N4k/1q1q1Br1/2Bp3B/R2PPB2/1b1p4/1pPQ2R1/2nPq1PK/2rnR3 b - - 0 2 illegal: No proof kernel
4nk2/pKRp4/P1Nq3r/1Qp1pPnN/4BnrP/1PRP4/6Rr/1N2Nb2 b - - 0 1 legal: proof: c4 f5 f4 b5 cxb5 e6 g4 h6 gxf5 Nf6 e4 Bc5 e5 Bb7 b3 Ng8 Ba3 Bd4 Be7 Bc8 Bg5 hxg5 Qe2 Bc5 Qg4 Be7 Qd1 Bf6 exf6 Rh5 Kf2 Rh4 Ke1 Rh8 Ke2 c5 Kd3 g4 Kc4 g5 a4 e5 h4 g3 f7+ Ke7 f8N g2 f6+ Ke8 a5 g4 b6 g3 Kb5 Qc7 b7 Nc6 Ka6 Nge7 f7+ Kd8 f5 Ng6 Ra2 Ke7 Rh3 Rh6 Bd3 Qd6 Ne6 Nf4 Ng7 Kf8 Nf3 g1R Qe2 g2 Be4 Rh1 Ne1 g1N Nh5 Nf3 Qb5 Ng5 Rc3 Rh2 d3 Nd8+ Qb6 Rb8 Rg2 Nde6 Qc6 Ng7 Qb6 Ke7 f8R Ne8 Rg8 Kf7 Rg6 Kf8 Re6 Qd4 Rc6 Qd6 Rc7 Ra8 Qc6 Rb8 Kb5 Ra8 b8N Bb7 Qb6 Bc6+ Ka6 Bd5 Nc6 Rb8 Qb5 Rb7 Qc4 Rb4 Qb5 Rc4 Kb7 Ra4 Rb2 Rd4 Bh1 Bg2 a6 Bf1 Rf2 Ng6 Rfc2 Rg4 Be4 Nf4 Rg2
n6r/p1p5/3B1Rp1/P1pkN3/B3b1PR/R2PQBr1/pbPPK3/1R3nb1 b - - 2 3 illegal: Other
3BQk1r/BK3P2/1p1q3R/1qR1pB2/3B1nq1/3pRp2/2pPPPP1/2Nn2b1 b - - 0 1 illegal: Other
1kn3K1/2N1qpPn/n1NBRr1N/1BpB3b/p1PqPP2/b2q4/P3r3/2QB4 b - - 0 1 legal: proof: h4 g5 hxg5 b5 d4 e5 dxe5 b4 c4 Qe7 Nd2 Qe6 b3 Qa6 Rb1 Qa3 Rb2 Qa6 Rc2 Qf6 Rc3 bxc3 b4 Qd8 g4 c5 b5 d5 g6 Kd7 b6 h5 e6+ Kc6 e7 Kb7 e8B a5 g5 c2 g7 a4 g6 h4 Ngf3 h3 Ne5 d4 Nb3 h2 Kd2 d3 Ke3 d2 Ke4 Nc6 Ng4 Nd4 Ke5 Ra6 Bg2+ Kb8 b7 Nf5 Nd4 Nfe7 Nh6 Bg4 Bd5 Nf6 g8B Bh5 Bb5 Nh7 Ne6 Nc8 Nc7 Rf6 Re1 h1Q f4 Qg2 Bb2 Qh3 Qc1 d1Q Bd4 Qhd3 e3 Ka7 b8N Bg7 Nc6+ Kb7 Qb2 c1N Bc3 Nb3 Qc1 Na1 Bb2 Nc2 Bc3 Ng5 Bh7 Qf8 Ba5 Nb4 Bb6 Na6 Ba7 Qd8 Bb8 Bf8 Re2 Be7 g7 Re8 Bhe4 Qg1 Bf3 Nh7 Re1 Qd7 Bd1 Bd8+ Ne6 Ba5 Bd6 Bb4 Re2 Rh8 Nc7 Ba3 e4 Ng5 Rg2 Nh7 Rg6 Qe7+ Ne6 Rd8 Bb8 Qf8 Bc7 Rd7 Bb8 Re7 Bc7 Ka8 Bb8 Rb7 Bc7 Ne7 Kd6 Nc8+ Kd7 Qd6+ Ke8 Qgd4 Bb8 Q6e5 Bd6 Rf5 Rf6 Rb6 Rg6 Qf6 Nc7+ Kb7 Qc2 Qh4 Re6 Qhf6 Qc1 Qg5 Nd8+ Kb8 Bbc6 Rb2 Bd7 Re2 Bb5 Nf6+ Kf8 Nh7+ Kg8 Qe7 Qe3 Rf6 Qc1 Ka7 Nc6+ Kb7 Na7+ Kb8 Nc6+
2r5/K4n1p/BBp3Nq/p2pP2P/1BPNBb1N/3PkRP1/2r3bn/r3q1Q1 b - - 0 1 legal: proof: b4 e5 a4 b5 axb5 e4 Ra6 e3 Rf6 gxf6 fxe3 f5 e4 f4 e5 Bh6 Nc3 Bg7 Nb1 Bf8 e6 Ke7 Kf2 Kf6 e4 Ke5 h4 Kd4 b6 a5 g3 f5 b7 d5 e5 f3 e7 f4 e8B c6 b5 Na6 b8B Ra7 h5 Nb4 b6 Bh6 b7 Qd6 Bg6 Qc7 Ba6 Bg4 c4 Bc8 d3 Nc2 Be4 Bh3 Ba3 Ne1 Rh2 Qd6 Bc7 Ra8 Rg2 Rf8 b8N Bg5 Bd8 Nh6 Bb4 Rf7 Bc7 Rc8 Nd7 Rf6 Na3 Nf7 Bd8 Rf5 Qc1 Qh6 Nf8 Rf6 Ng6 Rf5 Kf1 f2 Ke2 f1Q+ Kd2 Nf3+ Kc2 Nd2 Nf3+ Ke3 Nfh4 f3 Kc3 f2 Nb5 Qe2 Qh1 f1R Qg1+ R5f2 Rh2 Ra1 Bc7 Qd1 Bd8 Ke2 Kd4 Nf3+ Kc5 Qe1 Kb6 Ke3 Ka7 Bf4 Nd4 Bf1 Bb6 Bh3 Qf1 Rc2 Rf2 Bg2 Qg1 Nh2 Rf3#
B2B2k1/3Q1n1P/5P1b/3q4/b2q4/1q1PRPQ1/Qb1q1NKP/rR1Q1nb1 b - - 0 1 illegal: No possible last move, all moves rejected
R1Nr3b/6P1/b2Qk2K/pQP2Rr1/1P2qQ2/1PQr3P/nqN2B1n/7q b - - 0 1 legal: proof: e4 f5 exf5 c5 d4 b5 dxc5 b4 a3 Qb6 axb4 Qd8 g4 h5 f4 g6 g5 Rh6 Be2 Rh7 fxg6 Rh6 f5 Rh8 Bg4 hxg4 Kd2 d5 Ke3 Kd7 Kf4 a6 f6 d4 g7 g3 h3 d3 c6+ Kd6 c7 d2 f7 g2 g6 Nh6 Kg5 Ke6 g8Q Bg7 Nf3 Nc6 Ne5 Qd4 Qe8 Ng4 f8Q g1Q Nc4 Rg8 Qf4 Bh8 Nba3 Nh2+ Kh6 Qg2 c3 Qde4 Nb6 Bb7 Re1 Rd8 Nc8 a5 Nc2 Ba6 b3 Ne5 c4 Nd3 Bb2 Nc1 Qb5 Na2 Bd4 Qge2 c5 Qf2 Qdf3 d1R Qc3 Rd3 Rg1 Qd2 Bf2 Qc1 Rf1 Qb2 Rae1 Qe5 Qc1 Kf5 Nb6 R8d7 c8Q Qd5 Qd8 Qh1 Qb8 e5 Qd6 e4 Q1d2 e3 Bh4+ Qf3 Rf2 e2 Ref1 e1Q Bg3 Re7 g7 Re5 Re2 Red5 Re8 Qe4 Ra8 Rd8 Nc8 Re5 Rd1 Qh1 Qc1 Re3 Rd5 Rf3 Bf2 Rd3 Qc7 Kf6 Qf4+ Ke6 Qcb8 Rg5 Rf5 Qeg2 Qbc7 Qe4 Qcd6+
1BqN1r2/1bPPQ3/1k5K/1nb1PBBp/1R2n1Q1/P5Pr/1b1q2q1/3B3R b - - 0 1 legal: proof: f4 d5 e4 e5 exd5 a5 b4 g5 bxa5 g4 Nc3 e4 Nb5 Qd6 h3 c6 hxg4 cxb5 g5 Qe5 fxe5 b4 Ke2 Kd7 Ke3 Kc7 Kf4 b5 d4 f5 c4 h5 a3 b3 g6 b2 Kg5 b1Q d6+ Kc6 d7 f4 d8B f3 c5 e3 g7 f2 g3 e2 a6 e1B a7 b4 Nf3 b3 Be2 f1Q Bc7 Qa2 Rb1 Na6 Bb8 Nf6 g8Q b2 Qg7 Nc7 Qe7 Bc3 d5+ Kb7 c6+ Kb6 d6 Qg2 d7 Nb5 Kg6 Ne4 Nd4 Bb7 Bg5 Qd5 Ne6 Qd2 Nd8 Rg8+ Qg7 Bc5 Kh6 Rf8 Qe7 Rf4 Qa4 Rh4 Bd1 Rh3 Qc4 B3d4 Qce6 Bc3 Qg4 B3d4 Rc1 b1Q Rc4 Bb2 Rb4 Qdd3 Bd6 Rc8 a8B Qdd2 Bb8 Qa2 c7 Qg8 Nc6 Rf8 Nd8 Bc8 Bd5 Bb7 Be6 Rf1 Nc6 Qc8 Nd8 Rf8 Bf5
K5Q1/3n1bq1/P1P4R/N1B4N/pPP3r1/P3nr1k/1n1N2r1/NQbB3r b - - 0 1 illegal: Other
3q3n/2P1N3/2BPQ3/1bn1P1rn/N3Ppr1/4QPpN/1B1R4/1Nk1Knn1 b - - 0 1 legal: proof: b4 c5 bxc5 a5 g4 h5 gxh5 Ra6 a4 Ra7 Ra2 Ra6 Rb2 Ra8 Rb4 axb4 c3 e5 d3 d5 d4 Be7 Bh3 Bg5 Bf1 Be3 dxe5 d4 Qc2 d3 Qd1 Bd4 cxd4 Bh3 Na3 Bd7 Nb1 Bc8 e4 Kd7 h4 Kc6 h6 b5 h7 f5 h5 g5 a5 g4 a6 f4 a7 b3 h6 b2 f3 g3 Rh4 d2+ Ke2 b4 d5+ Kb5 d6 Kc4 c6 b3 c7 Ba6 Bg2 Nd7 Bh3 Nc5 Kf1 Kd3 Be6 Bb5 Rg4 Nf6 Rg7 Nh5 Bg4 Rg8 Qe1 d1N h8Q Nc3 h7 Nd5 Qe3+ Kc2+ Ke1 Ne7 Bd7 Ng6 Bc6 Rb8 a8N Rc8 Nd2 b1N Nh3 b2 Nb6 Nc3 Nb1 Ne2 Na4 Ng1 Rd7 Rg7 Qg8 Nh8 Qe6 Rg4 Rf7 Ra8 Rf6 Rb8 Rh6 Ra8 Nd2 b1N Bb2 Na3 Nb1 Nc4 Qg8 Nd2 Qe6 Ng6 h8N Nf1 Rh7 Rb8 Nf7 Nh8 Nh6 Qh4 Nf5 Rbg8 Rh6 Qd8 Ne7 R8g7 Rf6 R7g5 Rf8 Qd7 Ra8 Qd8 Rb8 Bc4 Rb3 Bb5 Rd3 Rg7 Bc3 R7g5 Rd2+ Kc1 Bb2+
BN1N2nk/n1N1q2P/4P2n/2r3Rp/2n2pPQ/4PP2/3Nbb1R/Q2b3K b - - 0 1 legal: proof: c4 b5 d4 e5 dxe5 a5 b4 Qg5 a4 Qh5 axb5 Qh4 b6 Qf6 b5 Kd8 b7 Ke8 b6 Qd8 Qc2 a4 Qf5 Ra5 Qxh7 Rb5 cxb5 Ba3 Ra2 Bc5 Ra1 Bf8 h4 Nc6 h5 Na5 h6 Nc6 Qg6 Nb8 h7 Be7 Bg5 Bf8 Bh6 gxh6 g4 c5 e6 d5 f3 a3 Kf2 h5 Kg2 a2 Qe4 f5 Qe5 f4 Qg5 c4 Qh6 d4 Nc3 d3 Rh2 d2 Kh1 d1B Qg7 Bc5 Nh3 Qe7 Ng5 Bf2 e3 Nc6 b8N Na7 Bd3 Ba6 Nb1 c3 b7 c2 b6 c1N Be4 Nb3 Nf7 Nd2 Nd8 Bae2 Na6 Nc4 Qg5 Kf8 Qh4 Kg7 b8N Ne5 b7 Nf7 Nd2 Nfh6 Rc1 a1N Nc7 Nb3 Rc5 Na5 Bc6 Nc4 Rb5 Nf6 Rd5 Rg8 Rg5+ Kh8 Rf5 Ba4 Nba6 Bb5 b8Q Rg5 Ba8 Ba4 Qb1 Bad1 Nb8 Nfg8 Rd5 Rf5 Qa1+ Re5 Rd4 Rc5 Rd5+ Qf6 Re5 Qe7 Rg5+
nr1N1R2/4pBB1/4R3/KPp1Pr1r/bB1P4/1k3P1P/2q1r1qQ/1B3Q1r b - - 0 1 legal: proof: e4 b5 c4 f5 a4 d5 axb5 g5 cxd5 Bb7 h4 Nc6 e5 Nb8 Nc3 Bc8 Ne4 fxe4 Rh3 h5 Qc2 g4 Be2 Nc6 Rc3 Nb4 Rd3 Bh6 Rc3 Bg5 hxg5 h4 Qd1 h3 Bf1 h2 Rg3 Nc6 Re3 Nd4 Rg3 Ne6 Re3 Nf4 Rg3 Nh3 gxh3 Rh4 Nf3 Rb8 Rg1 Rh8 Rh1 Ra8 Ng1 Bb7 Nf3 Ba6 Ng1 Bc8 b4 Kd7 d4 a5 Kd2 a4 Kc3 a3 b6 a2 g6 c6 d6 Ke6 g7 Kd5 b7 e3 b8Q e2 d7 e1R Nf3 g3 Bh6 g2 Bd3 g1R Ng5 Re2 Qf1 Nf6 Ne6 Ne8 g8B Nc7 Bb1 Rg5 Bf7 Qg8 d8B Rf5 Bg7 Bd7 f3 Rh6 Rg1 h1R Rg6 Rhh5 Qb6 Rb8 b5 Na8 Kb4 c5+ Ka5 Kc4 Qa7 Kb3 Bb6 Qh7 Nd8+ Be6 Rh6 Qg6 Rh8 Qg2 Rf8 Kc3 Bc7 Bb3 Qa6 Kb2 Qh6 Ba4 Qf4 Kc3 Qh2 Kb2 Ka6 Ka3 Ba5 Kb2 Be1 Ka3 Ka5 Kb2 Bd3 Ka3 Bb4+ Kb2 Rc1 a1Q Bb1 Qa2 Rc3 Qb3 Re3 Qc4 Re4 Kb3 Rg4 Nb6 Rg6 Na8 Re6 Qc1 Bc3 Qc2 Bb4
8/1Qp1bqpb/Bb4PN/b2b4/2qNQ1n1/Pr2N2P/RkP1RPK1/4N3 b - - 1 2 legal: proof: e4 a5 h4 d5 exd5 b5 b4 f6 bxa5 Ra7 Bb2 Ra6 Be5 fxe5 Nf3 h5 Qe2 Nd7 Qe3 Nc5 Nc3 Ne6 Qe2 Ng5 hxg5 h4 Nb1 h3 Ng1 h2 Qd1 Rh3 gxh3 Rh6 Nf3 Rh5 Ng1 Rh8 d4 Kd7 a6 Kd6 a3 b4 a7 b3 a8N e4 Ke2 e5 Nd2 e3 Kf3 e2 Kg3 e1B Nb6 b2 Bc4 b1Q Ba6 e4 Qf3 e3 Kg2 e2 Qe4 Qf6 Ngf3 Qa2 Nb3 Ba5 Ne1 Be7 g6 Nh6 Rf1 Ng4 Rg1 Be6 Nc4+ Kd7 d6 Bg8 d5 Qf7 Rh1 Bh7 Nd4 Rb8 Ne3 Qc4 Rg1 Rb3 Rh1 Ke8 d7+ Kf8 d8N Bb6 d6 Ke8 Nef3 e1B d7+ Kf8 Qb7 Bea5 Rhe1 h1B+ Kg1 Rb5 Re2 Rb3 Ne1 Bd5 Kf1 Bg5 Kg1 Ke7 Kf1 Kd6 Kg1 Qg8 Nf7+ Kc5 d8Q Be7 Nh6 Qf7 Qe8 Qb5 Nd1 Kc4 Ne3+ Kc3 Qec6+ Qc4 Kf1 Be6 Kg2 Kb2 Qe4 Bd5 Ra2+
3r2Rn/R4BN1/2N3Rn/1P2Pp1Q/Qr3P2/1p1pKP2/P1k1n2b/1qRb4 b - - 0 1 illegal: No possible last move
4Q1n1/1n4B1/1ppkN1b1/2Pr1B2/K1PPQbQ1/1rP3N1/PQ2pq2/q2R4 b - - 0 1 illegal: No possible last move, all moves rejected
2R2n2/R5P1/N2Q2P1/2b4p/r1p1bNn1/1qq1kpP1/1NQBP1PN/1b3K2 b - - 0 1 illegal: Other
3BQ3/4bPn1/B7/pnrq2pP/3Bbk1n/RPP3B1/q1PK3p/1N1Q2N1 b - - 0 1 illegal: No proof kernel
4N3/p5n1/1RP1n1NP/PKQn2pR/3pb1rq/1b2nN2/P4BPk/Q5N1 b - - 0 1 legal: proof: d4 b5 b4 f5 Qd3 c5 Qh3 e6 Qxh7 Na6 e3 Rb8 e4 Bd6 e5 Rb6 Bd3 Bc7 dxc5 d5 Be4 Rd6 exd6 Ba5 bxa5 fxe4 Kd2 Kd7 Kc3 e5 h4 Ke6 f4 d4+ Kb3 b4 Kc4 e3 h5 e4 c3 b3 d7 b2 c6 e2 c7 e1N f5+ Ke5 h6 e3 f6 Kf4 f7 Kg3 f8Q e2 Be3 Nd3 Nd2 e1N Rh5 b1B Qc5 Nf4 Kb5 Ne7 c4 Nb4 Ndf3 Be4 Rb1 Nbd5 Rb2 Bb7 c8N Nc2 Nd6 Ne6 Ne8 Rg8 Rb1 Nf5 Bf2+ Kf4 Qg6 Qh4 d8N Nce3 Nf7 Bc2 Qf6 Bb3 N7e5 g6 Qfe7 Nfg7 Qec7 g5 Qb8 Rf8 Ng6+ Kg4 Qh2 Rf4 Qh1 Ne7 Qb6 Be4 c5 N7d5 c6 Nc4 Be3 Kg3 Qc5 Rg4 Ka6 Ba4 Rb6 Bac2 Kb5 Bb3 Nh3 Ne7 Qa1 Nd5 Ne1 Kh2 Bf2 Nce3 Ng1 Bf5 Nf4 Bfc2 Ng6 Be4 Nef3+
1N4k1/2qnQq1r/P1R1b1p1/8/2qRB2P/bn1b2P1/PNNQ1rP1/2n2N1K b - - 0 1 illegal: No proof kernel
1BR2qB1/3nnp2/3b3k/1b4QP/1P2n1rb/rN2qrPP/5PQR/2Q2QK1 b - - 0 1 illegal: No proof kernel
3qbrq1/2R2QPp/2k1B2R/1r5P/nb1P1N1q/R4qn1/K1PQP3/3q1R1N b - - 0 1 illegal: No proof kernel
1Rq5/2Rbk1KR/2PPP1pr/N5P1/rR1r4/1n1b2b1/2P4B/bnQ1qN1Q b - - 0 1 illegal: No possible last move, all moves rejected
b2k1B2/1B1P1N1b/nPPn1Kp1/5Pn1/1q3q2/1r1B2P1/2QbrQ1N/nRB5 b - - 0 1 illegal: No proof kernel
2R5/p1QN2q1/Q2rn1kn/2Pbr1PB/P2PNqq1/2P1b3/4N1N1/nR1K1n2 b - - 0 1 illegal: No possible last move
2n2Rn1/1P1bNqpR/1QrrNb2/4P3/2rr4/PKb2BPq/QP1N4/N1k5 b - - 0 1 illegal: No proof kernel
2RbNn2/1Q1nRBn1/3Np1N1/1QrrPb1P/Nr1q2P1/1p1k4/1P1P4/3K2b1 b - - 1 2 illegal: No proof kernel forced: bxDB
3R4/PNQn2bq/bq2P2k/1nP5/2p1p3/2n1R2K/1P1qPrrR/2RNB1Q1 b - - 0 1 illegal: No proof kernel
r1Rr3N/8/3bP1r1/RPBp3R/P1q3nP/kb1PQ1Rp/2N2q2/K1n1bQ2 b - - 0 1 illegal: No proof kernel
3k3K/2pP2R1/1r2pb1P/Q1PnP2B/n1RN2q1/Qn1P4/b3BrB1/1b4Bb b - - 1 2 illegal: No proof kernel
4b1k1/P1Prp2q/4P2q/pQb1K3/Pb4Pr/1b3BNn/3RN3/NbQ2R1N b - - 0 1 legal: proof: f4 a5 d4 c5 dxc5 g5 b4 h5 b5 Na6 bxa6 h4 Bb2 Bh6 Be5 Bg7 fxg5 Bh6 g4 Bf8 Bg3 hxg3 Kd2 d5 Kd3 b5 Kd4 f5 a4 Kf7 h4 b4 e4 f4 c4 g2 a7 b3 h5 b2 g6+ Kg7 h6+ Kf6 c6 f3 c7 f2 e5+ Ke6 g7 Kf7 h7 Qd7 c5 Qf5 c6 Bd7 c8N Be8 c7 Nf6 g8N Bh6 Qc1 Ne4 Na3 b1B Be2 f1Q Nc2 Nf2 Nf6 Bd2 Bf3 Bb4 Rh2 Nh3 Ne2 Qh1 Ne4 g1B+ Nf2 Qg6 Rg2 Qh6 e6+ Kg7 Nd6 Rd8 Rh2 Rd7 Ke5 d4 Nde4 d3 N4g3 d2 Rg2 Qh2 Nh1 Bgc5 Rf2 d1B Rf1 Bd2 Ra2 Bdb4 Na1 Bb3 Rc2 Rg8 h8Q+ Kf8 Qh7 Rh8 Qd3 Kg8 Qb5 Qh7 Nd4 Qd2 Ra2 Qdh6 Nde2 Qg5+ Nf5 Qhg6 Rb2 Rh4 Rc2 Qh7 Rd2 Qgh6 Nfg3
1rqQ3r/1q1Q2R1/4rpr1/3BNP1P/Q3nK1P/2pNn3/1PPnbB2/5Q1k b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 h6 d4 Nc6 dxe5 Bc5 h5 Be3 g3 Bg5 Ra4 Bh4 gxh4 Nb8 Rg4 Ke7 Rg3 Ke8 Rg5 hxg5 Kd2 Ke7 Ke3 Ke6 f4 Kf5 e6 Kg4 b6 Kg3 f5 d5 b7 c5 e7 a5 e8Q g4 Nc3 g5 Nb1 a4 Rh2 d4+ Ke4 d3 e3 c4 Qf8 c3 Bh3 a3 Qh6 d2 Qa6 a2 Qa4 a1R Nf3 Na6 Bf1 Nf6+ Ke5 Nc5 b8Q Ba6 e4 Qc8 Nd4 Be2 Qb7 Nb3 Ne6 Rb8 Bg2 Kf2 Qba6 g3 Nf4 g4 Na3 Qb7 Bf3+ g2 Nc4 g3 Qe6 Ra2 Qed7 Ra3 Rh1 g1R Rh3 g2 Rg3 Re1 Nd3+ Kg1 Rg7 Kh1 Kf4 Rg1 e5 Ne4 e6 f6 Qe1 d1N e7 Nbd2 e8Q Ne3 Qed8 Rb3 Qf1 Rb6 Nce5 Re6 Qf2 Nc5 Bd5 Nce4 Q8e7 Rd1 Qf1+ g1Q Qed8 Qc8 Qf3+ Qg2 Qf2 Rg1 Qf1 Ng5 Bc4 Qgb7 Bd5+ Ndf3 Bd2 Ne4 Be1 Nfd2 Bf2 Kh2 Bb3 Rg5 Bg1+ Kh1 Bd5 Rg6 Bf2+
k4QRQ/1B1pqb2/N1P3r1/3PQ1pq/5n1n/2PP1nP1/4r1qR/N1Kn3Q b - - 0 1 illegal: No proof kernel
1N1N1n2/6rn/Nb1p1p2/P6Q/2KR1N2/BP1PqPR1/q2Pqnn1/2k2b1Q b - - 0 1 illegal: No extended proof kernel
1n3Nb1/3Bp2Q/1rP5/2r1RRPq/rnQ1P3/bPP1p1K1/k4pQQ/4N1n1 b - - 0 1 illegal: No proof kernel
R1k5/4Kp2/1Rr1PQB1/1b1P1Qbq/2PprPb1/2q1BP2/1nRNn1p1/2R5 b - - 0 1 illegal: No proof kernel
Nn1r1Q2/BqPN3p/kP1KNb2/1pN3r1/1P2rRr1/5P1P/3p3b/n3Q1R1 b - - 1 2 illegal: No extended proof kernel
1r1R2R1/kNrpnn2/n1Nn1PQ1/bPp5/1P6/K1QbPNN1/B1Pp4/3q4 b - - 0 1 illegal: No proof kernel
7n/pPNq1r2/1bpb1P2/N2p2Qr/nBP1NP2/PR1N4/1bb1B2k/4KQ2 b - - 1 2 legal: proof: e4 f5 exf5 h5 d4 c5 dxc5 Rh6 g4 Rh7 gxh5 Rh8 b4 Qb6 c6 Qa5 Nd2 Qd8 c7 Rh7 Rb1 Nc6 Rb3 Nb8 Rc3 Rh8 Rc6 bxc6 h4 Kf7 f4 Kf6 c4 g5 a3 d5 h6 e5 b5 g4 b6 g3 h7 g2 b7 e4 h5 e3 h6 e2 Nb3 Qd6 Nf3 g1B Nfd4 Nd7 Ne6 Nb6 Na5 Qd7 Rh3 Ne7 Rb3 Na4 Bd2 Ng6 Bb4 Bd6 Qb1 Rf8 h8N Bb6 Nf7 Nh8 Ne5 Rf7 h7 Rb8 Nd3 Ra8 Kd2 e1B+ Kd1 Rb8 Be2 Bc3 Qc1 Bb2 Ke1 Qe7 Qd1 Bd7 Qa1 Rg8 c8Q Rg5 Nc7 Rh5 Qg8 Be8 Qg1 Qd7 Qf1 Re7 Qc1 Bg6 Qe3 Rf7 Qg3 Kg7 f6+ Kh6 Qg4 Be4 Qh4 Kg6 Qg3+ Kf5 Qg7 Bf3 Qh6 Kg4 Qg6+ Kh4 Qh6 Kg3 Qg7+ Kh2 Qg5 Ng6 h8N Bg4 Kd1 Bf5 Ke1 Rfh7 Nf7 Nh8 Nd8 Re7 Nde6 Rf7 Nec5 Be4 Nf2 Bb1 Nce4 Bc2 Nd3
4qRb1/q1npb1B1/1R2r3/Q2p2r1/1BP1Pp1b/1N1rQPk1/1K1P2P1/1B3B2 b - - 0 1 legal: proof: h4 c5 a4 g5 hxg5 b5 b4 e6 Nc3 Na6 Nd5 exd5 bxc5 b4 Ba3 Nc7 Bc1 Nb5 axb5 Bh6 Ra6 Bg7 Ra1 Bf8 b6 Ke7 e3 Ke6 f3 Kf5 c6 h5 c3 a5 b7 a4 b8B h4 c7 h3 g6 h2 g7 a3 Qa4 b3 Kd1 a2 Qa7 b2 Kc2 b1Q+ Kd1 Qb6 Kc2 Rh5 Ba3 Ba6 c8Q Bd3+ Kc1 Qe8 c4 Rg5 Qab7 Nf6 g8B Qa7 Qd8 Be7 Rb1 a1B Qb3 Be5 Bad6 Bg3 Ne2 Bh4 Qa5 Bc2 Bbc7 Rb8 Qba3 Rb3 Bb4 Rd3 Bd8 Ke5 Kb2 Kf5 Bh7+ Ke5 Rg1 h1R Nd4 Rh3 Qc3 Rhg3 Qca3 R3g4 Nb3 Re4 Bg8 Kf5 Rh1 Re6 Bc7 Qeb8 Bf4 Ne8 Be5 Nc7 Bg7 f6 Bh7+ Ke5 Bf8 Qe8 Be4 f5 Rh3 Kf6 Bg7+ Kg6 Rg3 Kh5 Rg4 f4 Rg3 Rge5 Rg6 Rg5 Rf6 Bf2 Rf8 Kh4 Qb6 Kg3 Qaa5 Rd4 Bh7 Bg6 Qbc5 Bf7 Bc2 Be1 e4 Rd3 Qe3 Bg8 Ka3 Rb6 Bc5 Rd4 Na1 Re6 Rb6 Rd3+ Nb3 Kh2 Kb2 Bh4 Bb4 Kg3 Bb1
3N1K2/1pBP1RNb/PP4bb/1rQP2nb/6p1/QpQnn1k1/R5Pr/7Q b - - 0 1 illegal: No proof kernel
2rN1Rb1/q2qP2p/1bp5/1k1QbNB1/3p1N1P/3P2bP/2P3NQ/2r1q1RK b - - 0 1 legal: proof: e4 b5 f4 d6 h4 Kd7 a4 Kc6 axb5+ Kb6 e5 e6 f5 Qd7 f6 Qd8 Bd3 Ne7 Bf5 exf5 e6 Ng6 e7 Nc6 e8N Nce7 fxe7 Kc5 Qh5 Nf4 Qd1 Nh3 gxh3 Bd7 Kf2 Be6 Ke1 Bc8 Kf1 g5 Kg2 a5 b3 a4 d3 d5 b6 g4 b7 f4 b8Q f5 Qe2 g3 Qe6 c6 Qd7 a3 Nd6 a2 Qdc7 f3+ Kf1 f2 Kg2 f4 Nc3 Be6 Nd1 Bg7 Nf5 Be5 Ne2 Bg8 Nde3 Qd7 Rg1 f1Q+ Kh1 f3 Qcd8 f2 Ng2 Qe1 Bg5 f1Q Nef4 Qff2 Qd6+ Kb5 b4 Qfa7 Q6b8+ Ka4 b5 Bc7 b6 Kb5 Rd1 a1B b7 Bae5 Rd2 d4 Rf2 Bb6 Qd6 Rb8 Q8c7 Rc8 b8N Rf8 Na6 Rf6 Nge3 Re6 Nc5 g2+ Kh2 Rf6 Nb7 Rf7 Nd8 Rg7 Rgf1 g1B+ Kh1 Bh2 Rg1 Bg3 Neg2 Bc4 Nde6 Rc8 Nd8 Bg8 Qd5+ Ka4 Nh5 Rf7 Bh6 Qb1 Bd2 Bf6 Nfe3 Bh2 Qg3 Be5 Rff1 Rf2 Qf4 Re2 Qg3 Re1 Rf8 Qb4 Qf4 Rc1 Nf5 Qba5 Be3 Qe1 Qg3 Kb4 Bg5 Ka4 Nhf4 Kb4 Nge3 Ka4 Qf2 Bg3 Qh2 Kb4 Neg2 Ka4 Qe6 Kb5 Qd5+
b3k1r1/2P2nR1/1P1nP3/Np3Q2/3rBQ1B/3p2P1/p1pP1B1b/bq2RB1K b - - 0 1 illegal: No proof kernel
nQ1n2r1/q2pp1pP/3r4/QprNRK2/1P1PRP2/2N1Qk2/b1Q2Pb1/3B4 b - - 1 2 illegal: No possible last move
6B1/1prk1rR1/6Pp/1Pbnn2B/1pBq2nP/3r2N1/p2PRP2/1Q2BK1Q b - - 0 1 illegal: Other
n1Q5/4r3/1BK1np1p/2p1R1NP/1RP2P1r/2n2pPb/1P4Rn/rk2NR1Q b - - 0 1 legal: proof: f4 g5 a4 b5 axb5 g4 d4 Bb7 e3 Ba6 Be2 Bc8 Bf3 gxf3 Ra6 c5 d5 Qc7 Nh3 Qc6 dxc6 d5 Ra2 d4 Ng1 d3 Ra4 Bg7 Ra1 Bd4 exd4 Bf5 Na3 Bd7 Nb1 Bc8 Kd2 e5 Ke3 Ke7 Ke4 Kf6 Kd5 Kf5 c4 a5 h4 a4 g3 f6 b6 a3 c7 a2 b7 d2 Rh3 e4 Qf1 d1N Rh1 e3 Rh2 e2 Na3 e1R Bd2 Nh6 Ba5 Nd7 b8R Re7 Rb4 Nc3+ Kc6 Ke4 d5 Nb6 d6 Ng4 Rg2 Nh2 Nc2 Bh3 c8Q Raa7 d7 Na8 Qe1+ Kd3 Bb6 Ra4 Rb1 a1N Qc1 Nb3 d8R+ Nd5 Rd6 Ra1 Re6 Nc3 Re5 Nd4+ Kd6 h6 h5 Ne6 Kc6 Rg8 Qe1 Rg4 Rc1 Rh4 Rb1 Bg4 Nh3 Bf5 Qh1 Bg4 Ng5 Bh3 Rgg1 Kd2 Rbf1 Kd3 Ne1+ Kd2 Rd5+ Kc1 Rg2 Kb1 Re5
1k3rb1/r1q3pB/1r1P1N1n/RQ3pR1/pq3PP1/PPb2b2/K2RNRQ1/5n2 b - - 0 1 illegal: No proof kernel
1Nq1n1nK/3p1b2/1Pp3B1/N1P1r3/kb6/b2P1Rqp/3NRPrP/1q1Q1N1Q b - - 0 1 legal: proof: g4 f5 gxf5 e5 a4 b5 axb5 e4 d3 e3 Bd2 Ne7 Bg2 exd2+ Kf1 Ng8 Bh3 Ne7 Kg2 Ng6 Kg3 Ne7 Bf1 Ng8 Kh3 Ne7 Kg2 Ng8 Kg3 h5 Kf4 a5 Ke5 g5 e4 g4 c4 a4 b4 g3 c5 a3 b6 h4 b5 a2 b7 g2 f6 h3 Be2 Bh6 Nf3 Na6 b8N Bb7 Rg1 Qc8 f7+ Kd8 f8N Bg5 Ng6 Rh5 Ne7 Bd5 b6 Bf7 Re1 g1Q Kf5 Qg2 e5 Qg3 e6 Bf6+ Ng5 Bc3 Nec6+ Ke8 e7 Bb4 Na5 c6 Bg4 Nc7 Re2 Ba3 Qh1 d1Q Nd2 Qb1 Nf1 Bb4 Ke4 Ba3 Nf3 Re5+ Kd4 Qe1 Rc1 a1B+ Rc3 B1b2 Bh5 Qb1 N3d2 Bb4 Re3 B2a3 Rc2 Bg6 Rb2 Kf7 e8Q+ Kf6 Qf8+ Bf7 Bg6 Ne8 Rf3+ Rf5 Ke3 Ke5 Qg7+ Kd5 Qc3 Rg5 Qc2 Rh5 Qd1 Rg5 Ke2 Kd4 Ra2 Kc3 Ke3 Qgc7 Ke4 Rg2 Kf5 Qg3 Nab3 Ba5 Rc2+ Kb4 Ra2 Ka4 Rb2 Ngf6 Rc2 B5b4 Na5 Ng4 Kg5 Ngf6+ Kh6 Ng8+ Kh7 Nef6+ Kh8 Qcc7 Na6 Re8 Ne4 Re5 Nb8 Qc8 Re2+ Kb5 Qe1 Ne8 Ned2 Ka4 Qd1+
2qb2Q1/1Q3R1Q/1P1N2pK/2p1p2n/B2PPn2/p1P1B1PQ/rk1rb3/q4n1R b - - 0 1 illegal: No proof kernel
n2qN3/2bbpB1r/2pP1Q2/2PR1Q1p/1p1K2BP/pN3r2/kP1nP3/2BBb3 b - - 1 4 legal: proof: c4 d5 f4 g5 fxg5 b5 a4 Qd7 c5 Qc6 Ra3 b4 Rc3 Qb6 Rc4 Qb5 axb5 dxc4 Kf2 Kd7 Ke3 Ke6 g4 Kd5 h4 f5 d4 a5 g6 h5 g5 c3 b6 Kc4 d5 f4+ Ke4 c2 b7 Kb3 g7 f3 g6 f2 Qd4 a4 Bh3 f1Q Nc3 a3 Bg4 c6 Qf6 Rh7 Kd4 Na6 b8Q Nc7 Nb5 Ka2 Nd6 Bd7 Ne8 Qe1 Rh3 Qd1+ Rd3 Qd2 Qf5 Nf6 g8B Bg7 Nf3 Ne4+ Qf6 Bh6 g7 Bf4 Qc8 Qd1 Bf7 Nd2 g8B Bg3 Ne5 Be1 Nc4 Rb8 Na5 Na8 Qc7 Rc8 Qcf4 Rb8 Nb3 Rd8 Nd6 Rf8 Q4f5 Nf1 Bf4 c1B Ne8 Bcd2 Bh6 Bf4 Bg5 Bc7 Bc1 Nd2 d6 Qc2 Ke5 Qc4 Rd5 Qb5 Kd4 Qb8 Bg6 Qd8 B8f7 Nb1 Q5e5 Nd2 Bc2 Rfh8 Qef5 Rg8 Bf3 Rg3 Bg4 Rf3 Bd1
7k/2R1qBP1/1b1pNB2/1Pp1rPPp/1P1B1BR1/2p3N1/2B2Kp1/n5nb b - - 0 1 illegal: No possible last move, all moves rejected
6r1/1NK1p2P/qPn1P2P/R1r1Bn2/p1BP1RRR/3r1k2/2bn2N1/4b1Rr b - - 0 1 legal: proof: e4 b5 c4 f5 a4 d5 axb5 h5 cxd5 h4 e5 h3 Qg4 Rh6 Qe4 fxe4 gxh3 Bd7 h4 Bc8 h5 Rh8 Ke2 Kd7 Ke3 c5 d4 a5 h4 g5 f4 a4 b4 g4 b6 g3 h6 g2 h5 c4 d6 Ke6 f5+ Kd5 h7 c3 b7 c2 f6 Be6 f7 Nh6 d7 Qc8 d8R+ Bd7 e6 Na6 b8R Qc7 b5 Qd6 Nd2 Nb4 Nh3 g1R Nc4 Be8 Na5 Rhg8 Nb7 Ra5 Ra8 Nc6 Rh2 Bg7 f8R Be5 Rf4 Rh1 Rh4 Bf7 Re2 Bg6 Re8 Bg3 Nf4+ Kc4 Ra7 Be1 Ng2 Kd5 Bd2 c1R b6 Qc7 Rb1 Rac5 Ra5 Qc8 Kf4 Nf5 h6 e3 Bb4 Rh8 Rg8 Rd1 Ra1 Rd3 Bd2 Bf7 Rgg4 Rg8 Bb4 Bg6 Ba3 Rb5 Bd6 Rc5 Be5 Qa8 Rb1 Qa6 Rd1 Kc4 Ke4 Kc3 Rf2 e2 Rff4 Kc2 Rc1+ Kd2 Ra1 Bg3 Rc1 e1N Be2 Nf3 Rg1 Be1 Bf1 Rc1 Kd5 Kd1 Re4 Nd2 Bc7 Re3 Bc4 Rd3 Ref4 Ke2 Re4+ Kf2 Be5 Bh5 Rg6 Bd1 Rgg4 Kf3 Kc5 Bc2 Kd5 Na7 Kc5 Nb5 Kc6 Na7+ Kc7 Nc6 Rg6 Rb1 Rg5 Rb5 Rgg4 Rc5 Ref4+
R1b5/6p1/R2k1B1r/1qn1NPK1/1P2PPp1/2n1bPR1/2NN2b1/Rr1B2n1 b - - 0 1 illegal: No proof kernel
1r2b3/1RPP2bN/2rb1p2/n7/BRBP2BP/4q2N/KP5p/R1k1n1Bq b - - 0 1 illegal: No possible last move
3r2b1/kR1Pr1P1/2K2npR/4p2p/1P2P1rB/1RNb1P2/1n4bR/1N2B2B b - - 0 1 illegal: No proof kernel
2rn1R1q/1PpBbp1q/1Nb4B/2P2pP1/3N4/k1p1P1B1/2N2PRb/3N3K b - - 1 2 illegal: Other
N4NNn/1rq1PR1P/3pp2R/3b2B1/K6R/1BNP1b2/P1r1P2n/2rbq2k b - - 1 2 legal: proof: g4 c5 b4 a5 bxa5 h5 gxh5 e6 f4 Bd6 c3 Bf8 f5 Ke7 f6+ Kd6 Qb3 Kc6 Qb4 Be7 fxe7 cxb4 Kd1 Kd5 Kc2 Ke4 Kb3 f5 h4 g5 c4 b5 c5 f4 a6 g4 a7 g3 h6 g2 h7 f3 c6 f2 c7 d6 h5 Nd7 h6 Kf4 d3+ Kg3 Bb2 Ngf6 Nd2 Bb7 c8R Ne5 Ndf3 Ng6 Rc6 Rb8 a8N Ng4 Ra6 Nh2 Ra4 Qc7 Ng5 Rhc8 h8N Bf3 h7 Rb7 N1h3 g1R Bg2 f1B Nhf7 Nh8 Nf4 Kf2 Bh3 B1g2 Nh6 Rc1 Ng8 Kg3 Bf6 Kf2 Kb2 b3 Ka3 b2 Ng6 b1B Nf8 Bc2 Rh4 Bd1 Bf5 Rc2 Be4 b4+ Ka4 b3 Bd5 b2 Bb3 b1Q Rh6 Kg3 Rf1 Bh1 Ne4+ Kg2 Bg5 Qc1 Nc3 Qd2 Ne4 Qe1 Nc3 Bd5 Rff6 Kg1 Rb1 Bhf3 Rf7 Rc1 Bc2 Kh1 Rb4 Qb6 Rc4 Rc6 Bb3 Qc7 Rch4 Rc5 Nb1 R5c2 Nc3
1b3bB1/1rP1RBr1/3n1p1B/1b1P1n1B/1R1N2b1/N2qP1N1/pk1P1P1K/4r3 b - - 0 1 illegal: No proof kernel
1K1N1NN1/1bB1Bn2/p1PpPrBR/2nr2k1/1q1P2R1/P1P4p/3r4/N2b1n2 b - - 0 2 legal: proof: g4 c5 d4 g5 b4 f5 bxc5 e5 Qd3 e4 gxf5 exd3 h4 g4 Bg2 Be7 Bf1 Bg5 hxg5 Qc7 Kd1 Qb6 Ke1 Qd8 Kd2 Kf7 Kc3 b5 Kb4 h5 f4 a6 e4 h4 c3 d2 a3 d1B g6+ Kf6 e5+ Ke7 e6 Kf6 c6 g3 Kc5 b4 Kd6 g2 g7 b3 Nf3 g1R Nbd2 b2 Bd3 b1N Ne5 Bb3 Nf7 Qe7+ Kc7 Rg4 Nd8 Bd1 Nb3 Rg5 Be4 Nh6 g8N+ Kg7 Ra2 Bb7 Rg2 Nf7 Rg4 Nd2 Na1 Qb4 Bd3 Kh7 f6+ Rg6 f5 Nf1 Bb1 d6 Bg5 Nd7 Bd3 Ra7 Be4 Nc5 Kb8 Rh6 Rh2 Rh5 Bc2 Nh6 f7 Kg7 f8N Nf7 Rhg2 h3 Rf2 R8h6 f6+ Kh8 Bh4 Rd5 Rf5 Rg6 Rh5+ Rh6 Bh7 Rg6 Rh6 Rgg5 Re4 Rg2 Rg4 Rd2 Bg5 Ne5 f7 Kg7 Nd7 Kh8 f8B Nf7 Bfe7 Kg7 Bb1 Nd3 Rhh4 Kg6 Rh6+ Kf5 Ba2 Nc5 Nf8 Ne5 Bb3 Nf7 Bc2+ Nd3 Bef6 Nh8 Nf7 Ba8+ Kc8 Rd7 Bb1 Bb7+ Kb8 Rc7 Bd8 Rd7 Nc2 Nc5 Bc7 Re7 Nd8 Rf7 Be7 Rf6 Nh7 Nf7 Nf8 Rh2 Na1+ Rc2 Re4 Kg5 Reh4 Rh2 Bg6 Rd2 Rg4+
1bb5/4p2b/RrNB2P1/Kp2N3/B2p2qP/1BN1kPR1/q1PP1r2/B5nn b - - 0 1 illegal: Other
q2b1RN1/PB1P1p1R/RR5K/1b3NnB/P2k1P2/p1p1r1n1/2P4r/qq4B1 b - - 0 2 legal: proof: e4 a5 a4 d5 exd5 b5 h4 g5 hxg5 b4 Qf3 Qd6 Qa3 bxa3 b4 Qd7 bxa5 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 g4 h5 g6 c5 Kg5 c4 f4 c3 a6 h4 g7 h3 a7 h2 d6 Nh6 g8B Nc6 d7 Rb8 d5 Kc5 d6 Rb4 Be3+ Rd4 Bg2 Qa5 d8R e5 d7 e4 Nd2 Qb6 Ne2 Ne5 Bg1 e3 Bb7 Re4 Ng3 Kd4 Rb1 Qb5 Bh7 Nf5 Bg6 Qb3 Bh5 Nf3+ Kf6 Qa2 g5 Qa1 g6 Ng5 g7 Bc5 g8R Bb6 Rde8 Bd8+ Re7 Re5 Nde4 Rh7 Rf8 Rh8 Nf2 e2 Rb6 e1Q Ng4+ Re3 Nh6 Qeb1 Ng8 Rh7 Bbf3 Ba6 Bb7 Bb5 Ra6 Bb6 Re6 Bc7 Reb6 Rh8 Ne4 Ng3 Kg7 Bd8 Nd6 Rh6 Bg4 Rh3 Bh5 Rh4 Kh6 Rh3 Bf2 Rh4 Re1 h1Q Bg1 Rh2 Nf5+ Kc5 Rd1 Qc6+ Rd6 Qc8 Rg6 Qa8 Rg7 Kc4 Rh7 Kc5 Ng7 Kd4 Nf5+
3r1N1b/1KRPqR2/4Nrk1/B1p4R/R1B2p1n/Pp2P2n/1PnBrP2/2q5 b - - 0 1 illegal: No proof kernel
1b3K2/2bBNB1P/1BpP1rRp/R2b3r/4p3/N1knP1np/4P1rP/3R2B1 b - - 0 1 illegal: No proof kernel
1r3N2/5KpR/pqr5/PB1rpP1B/R2BPp2/P1NP1n2/3N3r/1b3kNn b - - 0 1 illegal: No proof kernel
1K1R1rr1/1PQ1R1B1/2P3b1/P4N2/qN4bq/5B1P/2rNP2P/nqq2nk1 b - - 0 1 legal: proof: f4 h5 d4 c5 Kf2 cxd4 Ke1 e5 fxe5 h4 Nh3 Rh7 Ng1 h3 gxh3 Rh8 b4 a5 a4 b5 axb5 a4 Qd3 Bc5 Qd1 Bb6 Bg2 Qg5 Bf1 Ba5 bxa5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 g5 Kd6 Ke4 c4 f5 b6 a3 c5 g4 b7 a2 c6 f4 e6 g3 e7 g2 e8N f3 Bg5 d3 Be3 f2 Na3 d2 Bd4 Ne7 Qe1 d1B Nb1 Nf5+ Kc5 d5 Nc7 Rf8 Kb6 Ne3 Bc3 d4 Nf3 g1Q Qd2 d3 Bb2 Bg4 Be5 Qh4 Qc2 Na6 Nb5 Nb4 Qb3 d2 Kc7 Bc2 Ne1 d1R Qf7 Rd2 Nd4 Rg8 Bg7 Raf8 Nf5 Bd3 Qb3 Rc2 Qf7 Kf4 Bg2 f1Q Nd2 Be4 Rc1 a1Q Rd1 Qa4 Nef3 Qfe1 N3d4 Nf1 Bf3 Qe3 Rg1 Qea3 Ng3+ Ke3 Ngf5+ Kf2 Qd7 Qa1 Qc8 Qc1 Kb8 Rb2 Qd8 Nc2 Rg3 Na1 Nc2 Ra2 Nb4 Rc2 Rg1 Bh5 Rg6 Bg4 Re6 Kg1 Re7 Bd3 Nd6 Bg6 Nf5 Be8 Qc7 Qb1 Nc4 Bg6+ Rd8 Qec1 Nd2
1qk2br1/1R1P4/N2r2P1/P2P4/PKP2p2/Nn4Bq/B3rR1n/N2q2bQ b - - 0 1 illegal: No possible last move, all moves rejected
1n1B1qr1/KP1BR1P1/nP1q1N2/pP1N2kb/4P3/1r5b/RN3P1Q/4qq2 b - - 0 1 legal: proof: b4 b5 h4 g5 c4 gxh4 a4 f5 a5 e5 cxb5 e4 e3 f4 exf4 e3 dxe3 Bc5 e4 Bb6 axb6 Qf6 Qe2 Qg5 Qd1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 c5+ Kc4 d5+ Kc3 a5 g4 h5 f5 c4 Kd4 h3 Kc5 c3 b7 h2 Ra2 d4 Nd2 c2 Nh3 d3 Nc4 d2 Nf4 h4 Nd5+ Kg5 f6 h3 f7 Qf8+ Kb6 Nf6 Nb2 Na6 Be2 Rb8 Ka7 Nd7 b6 Rh5 Rg1 h1Q b5 h2 Rg2 Rh6 Qg1 Rh3 Bf3 Qd6 f8N Rg3 Bd1 Rb3 Rg3 Qf3 Nh7+ Kg6 g5 h1Q Rg4 Qff8 Qh2 Qf1 Nhf6 Qe1 Be2 d1B Rg2 Qf1 Bg4 Qe1 Bf4 c1Q Bg3 Qc4 Bh4 Qcf1 Be6 Bh5 Rg3 Kg7 g6 Kh6 g7 Qd1 Rc3 Qde1 Bg3 Kg5 Rc7 Ndc5 Re7 Bd7 Bg8 Bh3 Be6 Nd7 Be5 Rd8 Bd4 Ndb8 Bd7 Qf7 Be5 Rg8 Bg3 Qf8 Be5 Qa3 Bc7 Qd6 Bd8
n6r/2P5/P1K3bP/k2N1rQ1/1r2pn1B/N5Pr/1q1P1P1B/2RnqRN1 b - - 0 1 illegal: No proof kernel
1b1Q1B2/bp1n2R1/PN1PKP2/1B3P1q/q1P1n1r1/6r1/Bkp4P/2NRq3 b - - 0 1 illegal: No proof kernel
k4Rbb/rb1PK2b/2qP2N1/1n1P2NR/BPq1p3/4P1QP/r4q1B/3n1N2 b - - 0 1 illegal: No proof kernel
2b2n2/1qNPr1PQ/1kB2KB1/2PPrP1P/4qNp1/5r1b/1R1b4/2n1bRB1 b - - 0 1 illegal: No possible last move, all moves rejected
5bk1/r5nn/pN6/PR2B1rQ/b2P1N1b/2qPBN1K/P1P1Pb1R/1rr5 b - - 0 1 illegal: No proof kernel
2R1q1r1/PnPn1pq1/b2NQP2/4B1P1/2k5/1rPn4/Kpr1b1P1/NB4RR b - - 0 1 illegal: No possible last move
2bnN1b1/p5nk/P1qPRK2/rP1B4/1b6/r2P1P2/1PpRQ1Bb/B1N4q b - - 0 1 illegal: Other
2R3N1/1PpB4/2BP1P1K/n1b1pP1Q/3r1r1n/1bnN1b1b/1BP2P2/R5bk b - - 0 1 illegal: No proof kernel
3n3K/R1Qq2np/1Pp2PNp/P7/3br1Pk/PRNb4/PB1N3r/2b2B1q b - - 0 1 illegal: Other
1r3B2/qqpp4/Q1P2q2/1BRK3p/2rP1bPn/Pk2PP1N/2r2b2/2N1R1R1 b - - 1 2 legal: proof: f4 e5 fxe5 f5 b4 a5 Bb2 axb4 Kf2 b6 Ke3 f4+ Kd4 f3 Kd3 f2 Bc1 Bb7 Ke3 g5 h3 Bf3 gxf3 g4 Kf4 Qe7 Kg3 Qd8 Kg2 g3 Bb2 Na6 Bc1 Nc5 Ba3 Ne4 Bb2 Nef6 Bc1 Ng4 hxg4 Ke7 Ba3 Kf7 Bc1 Ke8 c4 Ke7 d4 Ke6 a3 h5 e3 b5 c5 Kd5 c6 b3 e6 b2 e7 b4 e8R b3 Rh2 Bd6 Ne2 Kc4 Nbc3 b1Q Na2 b2 Re6 Ne7 Rh3 Ng6 Bd2 Qf6 Re5 Ra4 Bb4 Rb8 Rh1 Nh4+ Kh3 g2 Kg3 g1B Nac1 Qd3 Nf4 b1Q Nh3 Qe2 Bc5 Qb7 Qe1 Qd3 Qa5 Rb4 Be2 f1R Qa6+ Kc3 Rb1 Rf2 Ra1 Qd1 Bb5 Qa4 Rb1 Rc4 Ra1 Qe6 Kf4 Qf6+ Ke4 Rc2 Kd5 Bf2 Rg1 Qa5 Rf5 Bf4 Bf8 Qa4 Na2+ Kb3 Rae1 Qa5 Rg5 Qab6 Rf5 Q6a7 Nc1+ Kb2 Ke4 Kc3 Rc5 Kb2 Kd5 Kc3 Nd3 Kb3 Nc1+
R2r1RN1/R1Kp2N1/PP3b2/1BbP1rn1/r2k1p2/P2pQ2P/r4Pq1/1r4B1 b - - 0 2 illegal: No proof kernel
k2R4/qr1P1PnK/qR3P2/p4nPN/Np2r1P1/8/1PBrrNQp/1b2B3 b - - 0 1 illegal: No possible last move, all moves rejected
1r1nk2K/Pp1Nb3/1PP4n/2R3Rq/B3ppP1/2QNpP2/4PB2/n3Rq1q b - - 2 3 illegal: No proof kernel
1b1n4/3b2Pq/nnPPN1Rp/1b2R3/1pPBN1bP/1PQ5/1K4kr/3r1rNB b - - 0 1 illegal: No possible last move
1N1nNb2/1n5n/1Rpp1QP1/1PrqP3/k1PrbR2/3P3R/1Pb2K1b/BBn5 b - - 0 1 illegal: Other
R2q4/B4Bpp/P4N1N/bnn1RKnP/3p1P1r/P2P1bP1/rb6/1N1rQ1k1 b - - 1 3 legal: proof: c4 b5 e4 bxc4 b4 a5 bxa5 f5 exf5 Ra6 Be2 Ra7 Bf1 Ra8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 f4+ Kh4 h3 Kg3 f6 Kf2 f7 d5+ Ke5 c5 g3 c3 h4 c4 h5 c2 Bh3 c3 Bf5 Nh6 Na3 Nd7+ Ke6 Nc5+ Ke5 Bb7 Be4 Nf5 Qg4 Nd6 Bg2 Nb5 Bb2 c1R Qd1 c2 Kf5 e5 Nb1 e4 Nf3 e3 Nh2 e2 Re1 d4 d3 Bf3 Ba3 Rc8 Qd2 Rd1 Qc1 Bd6 f8N Bc7 Nd7 Ra8 Nf6 Re8 Qd2 c1B Bb4 Bb2 Bh1 Na4 Bc5 Re3 Ba7 Nc5 Ng8 Re6 Nh6 Rg6 Bg2 Rg4 Qb4 Bc6 Bd5 Rh4 Bf7 Bf3 N2g4+ Kg2 Nf6 Bb6 Rf1 e1N Rf2+ Kg1 Re2 Bb7 Re5 Nf3 Qd2 Ng5 Qe2 Bf3 Qf1+ Kh2 Qe1 Rb8 a6 Ba5 a3 Rb6 Re8 Re6 Ra2 Re2 Re5 Bc1 Rc2 Bb2 Qb4 Kg1 Rc1 Nce6 Rc8 Nc5 Qd2 Bbc3 Qc1 Ra2 Ra8 Ba1 Qd2 Bb2 Qe1+
b2Nq3/2p4p/n1qPb1n1/1Nr1qP1Q/1BP1P2b/r2P4/1RNKp1kP/1R5B b - - 0 1 illegal: No possible last move
n2n1R2/2bRKPb1/r3p3/B4PN1/2p1RQnP/1N1rP2p/2b3PP/b2k1Bq1 b - - 0 1 illegal: Other
1br2R2/p2q2pR/r1PPn3/3PPr2/b4p1B/Pbn1Q1PN/2BK2kN/Nr6 b - - 0 1 illegal: No proof kernel
5Qqb/2qpP3/Brnb1p1B/1NPP1Pr1/kPR1nN1b/3P4/2Npb3/5R1K b - - 0 1 illegal: Other
R4NR1/K1p1b2p/1N1B1Q2/1PrB3q/1P2Pn1R/1p5r/1PPP1kbp/1n1b1n2 b - - 0 1 illegal: Other
q2k3n/p1q2b1b/PQ6/PRPNrB1P/1Bnb1Pr1/R2p2p1/3p2P1/4BK1N b - - 0 1 illegal: No proof kernel
b3K1N1/pqQ2N2/2rR3P/1Pr4R/1bpb3B/PpPk3p/1P2RP1n/B4bn1 b - - 2 3 illegal: Other
bN1N4/bRp1p1P1/1P2R3/1p1rP1nK/1Pr1RB2/4n1PQ/2Ppnn2/1q3Bk1 b - - 0 3 illegal: No proof kernel
QBq1nb2/PpprpBR1/2PN3p/P3r1nP/K1R4k/1P2Pr1b/4B3/1r2N3 b - - 4 6 illegal: Other
K2nb1N1/BP6/2Nr2pp/1p2Pr2/4rRnP/1Rb2bP1/1PQkp1nP/R6B b - - 0 1 illegal: Other
n1k1N3/1q4P1/5nrp/P2pp1BR/bpnPN1P1/1PN1P3/B2p3r/KbR1Q3 b - - 0 3 illegal: No proof kernel
2K1Q1B1/3P1p1p/n2bR1pP/Nr2pqP1/1qb2P2/1N1pPB2/k1n3P1/2B1nR2 b - - 0 4 illegal: Other
3NQ3/R2pn2r/1pp1kB2/1qPN2P1/pb1rb1n1/1P1PrBn1/PP1p3R/1N1K4 b - - 0 1 illegal: Other
2RBN2q/K5Q1/P1p1P2r/1P1k1B1n/Rq3PP1/3r2b1/r1rN2P1/bQ5q b - - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 b4 axb4 h3 g4 hxg4 Ra5 Nc3 Ra4 Nb1 Ra8 d4 b5 Qb3 e5 Na3 e4 Rh5 Ba6 Nb1 Nc6 Rh1 Ne5 Qd1 b3 dxe5 b4 Qc2 Nf6 Qd1 Bb5 cxb5 Ng8 Ke2 Ke7 Ke3 h5 Kd4 d5 Kc5 h4 f4 b2 a4 b3 f6+ Ke6+ Kc6 e3 Kb7 h3 a5 h2 f7 e2 Qd2 e1B Bc4 c6 Qc3 Bg7 f8Q Rh6 Nf3 Nf6 Qc2 Nh5 Nfd2 Bg3 Nc3 b1R Bd3 d4 Nce4 b2 Ra4 Kd5 e6 Qe8 Rd1 h1Q Nd6 Ra6 Bg6 d3 Bf5 Bc3 Qg7 Qh8 Ne8 Ra8 Nf1 d2 Kb6 Ra1 Qb1 Ra2 a6 Rd8 Ka7 Bf6 Qa1 b1Q Ba3 Qb4 Qb1 Ba1 Bb2 Rd6 Bf6 Rc2 Bd8 Ra2 Rc1 d1R Nd2 Rg1 Rc2 Rc1 Rc4 Rcc2 Rd4+ Kc5 Re4 Rd3 Rd4 Bc3 Rd7 Ba1 Rc7 Kd5 Rc8
6n1/5PbR/2p1b1Qp/K1bbkR2/4r1P1/1PP2P1q/1PNNB2Q/3r2bB b - - 0 1 legal: proof: d4 b5 h3 e5 dxe5 g5 Be3 b4 Qd5 g4 Bc1 g3 Qd1 b3 axb3 Qg5 Qd2 Bd6 Qd1 Qg4 hxg4 Bf8 e4 f6 e6 Bh6 e5 Na6 e7 Bf8 Bf4 Kf7 e6+ Kg6 Be5 fxe5 Ra4 Kg5 Ra2 Kf4 Ra1 Ke4 Nd2+ Kd5 Nb1+ Kc6 f3 Nc5 f4 Ne4 Ke2 Nd2 Ke1 Nf3+ gxf3 Ba6 Rh3 Bb7 Rh1 Bc8 Kd2 Kd6 e8Q a5 e7 a4 c3 a3 f5 e4 f6 a2 f7 e3+ Kd3 c6 Kc4+ Ke5 Kb4 d5 Bd3 g2 Qd7 d4 Ba6 d3 Qe2 d2 Ka5 d1B e8B Bg7 Qdd3 Bc2 Nd2 Be6 Bd7 Rd8 Qg6 Be4 Bdc8 B4d5 Bb5 Rd6 Bca6 Rd7 Qf2 e2 Bc4 e1B Bf1 Re7 Ne2 g1B Nd4 Rd7 Qh4 Bef2 Nc2 Bc5 Bae2 Rd8 Rd1 Re8 Bg2 a1Q+ Na3 Qb1 Nc2 Re7 Rh2 Qc1 Bh1 Re8 Nb1 Qh6 Rd4 Rd8 Rf4 Qh5 Qg3 Qh3 Nd2 Rd6 Rf2 Rd7 Qh2 Re7 Rf1 h6 Ra1 Nf6 Raa4 Rd8 Rab4 Ng8 Rb8 Rb7 Rc8 Rb4 Rb8 Re4 Ra8 Ne7 Rb8 Rd6 Rh8 Ng8 Rh7 Bc4 Nf1 Rd1 Nd2 Bcd5 Rf5#
1Nr1NQRR/1nPnB3/1Pq2bBQ/n4b1P/7q/1P1P2bP/rkr3n1/3K4 b - - 0 1 illegal: No proof kernel
3r2qR/P1Pn3Q/K2Bn2N/bRr1PB2/k4qn1/bPQP4/2n3bP/3rN3 b - - 0 1 illegal: No possible last move, all moves rejected
1K5R/2NbPR2/P3Qb1r/1PPN1q2/n5B1/p1b2qB1/rn1P1kP1/3Q1r1n b - - 0 1 illegal: No proof kernel
r4b1Q/PP6/4R1KP/1n1P2p1/1P2PbNB/3BQ1qN/R2b3b/n2rk1bb b - - 0 1 illegal: No proof kernel
1b1R1r2/BNPpbq1p/1P2n3/1P2P1qb/K1BP1R2/8/1P2r1kQ/2qQ2nN b - - 0 1 illegal: Other
1Q5N/Np3KRP/1qn2B2/B1RP2Q1/3kr1rP/P1b5/qP1Pp1b1/q2b2n1 b - - 0 1 illegal: Other
nbB1Kn2/N1p1b1qP/P1P3Qr/b2RP2b/3b1N2/4p1RQ/3P3P/1kr4B b - - 0 1 illegal: No proof kernel
1Nr4b/1P2bPp1/Pbb1pRq1/q3P1nP/1B6/QNB1nP1r/K3k2R/2Q5 b - - 0 1 illegal: Other
1qr5/1n1p2k1/q1P2PBn/1p6/bPb2rp1/B3R1KP/rPRPQ3/1Q1N3N b - - 0 1 illegal: No possible last move, all moves rejected
1Kb4r/P2p1Q2/PbPn1N2/pPP1p3/R4b2/1n3b1P/1R4B1/QNB2qkr b - - 0 1 illegal: Other
q3r3/3PrRp1/2RP1N1b/pK1Pb3/1bpq4/2PB1QPP/Nk6/Q1n1b1B1 b - - 0 2 illegal: No possible last move
7N/3P1rpp/R1Bpkn1Q/3N3p/1PK4R/2bP2PP/4Qn1P/2qB1rrn b - - 1 3 illegal: Other
5Nqb/1Pr1p1R1/Rp1B1B2/q2b4/pQ1Qk3/1P4Pp/P2P1r1P/1KN1b1b1 b - - 2 3 illegal: No possible last move, all moves rejected
1K3B2/2p4b/3PNn2/PQ2NBrk/p1p3RP/rp1P1Ppn/2P2b1R/Q1q5 b - - 0 1 illegal: No proof kernel
1r4q1/pnp2NpP/2Q2Pb1/P7/1kP4B/n1n1K2B/Pb1RPr2/rN2nQ1R b - - 0 1 illegal: No proof kernel
3bN3/1Q2pP1K/1pbpqP1R/2n1P3/1P4R1/BN1P1q1p/nP2rqn1/3k2QB b - - 0 1 illegal: No proof kernel
5k2/1pBQ3n/b1P1Kb2/2P2pBQ/1P1pp3/1r1P1RrN/1R2PpP1/1bq2N1n b - - 0 3 illegal: No proof kernel forced: bxLB
Qb1q2b1/1n1Pp2R/b1kB1P2/2bB4/4q1PP/1r2P1r1/2n1nP2/R1BKN2R b - - 0 1 illegal: No proof kernel
b2B3n/PRPP4/2bN3p/2n2Pb1/BP2p1Nr/1q1bN3/2B1P1K1/q1k1r2Q b - - 0 1 illegal: No proof kernel
5nkb/1Q1R3P/ppnNbP1P/3BP3/p3K2P/1R1p2RN/1N1P4/2rq1n1r b - - 0 1 illegal: Other
2r5/RP5P/4bn2/P1r5/qr1nPQ2/N1n2PN1/1BnPQ1B1/1bNqk2K b - - 0 1 illegal: No proof kernel
2q3bb/1R3P1P/2P2Pnq/K1Nn2r1/bQ6/B2P2n1/1P1Qqb1R/k2N1R2 b - - 0 1 legal: proof: g4 c5 a4 b5 axb5 d5 Bh3 a5 Kf1 f5 gxf5 h5 Bg4 hxg4 Kg2 d4 Kf1 c4 d3 Ra7 dxc4 d3 c5 d2 Na3 Rd7 Nb1 Rd3 exd3 Bb7 Qe2 Ba6 Qd1 Bc8 Ke2 Kd7 f4 g5 c4 e5 h4 a4 c6+ Kd6 b6 Kc5 c7 Kb4 b7 a3 h5 g3 c5 a2 f6 g4 h6 e4 h7 e3 c6 g2 f5 g3 Qf1 Kb3 Rh5 d1B+ Ke1 e2 Kd2 Nd7 b8Q+ Nb6 Qa8 Nd5 Qa6 Nge7 Rh2 Rg8 Qa5 Ng6 Qe1 Be6 c8R Bg7 Nh3 g1N Nf2 g2 Rc7 Bh8 Ne4 Qc8 Nbc3 Rg7 Qf2 Bg8 f7 Bc2 Rb1 a1Q f6 Qa4 Nd1 Ka2 Qab6 Qd4 Qf4 Ba4 Qb4 Qc5 Rb7 Qe3+ Ke1 Qeh3 Be3 Qh6 Kd2 e1B+ Kc1 Bh4 Kd2 Ne2 Bc5 g1Q Be7 Qg2 Nc5 Qf1 Bd6 Ng3 Qe3 Nb6 Kc3 Qe2 Qd2 Nd5+ Kc4 Nge7 Rc1 Rg5 Rb1 Ng6 Rc1 Bb3+ Kb5 Bc2 Ka5 Ba4 Rc4 Ka1 Rf4 Ne4 Rf1 Bf2 Bf8 Ng3 Ne6 Nge7 Qb3 Ng6 Ba3 Rh5 Nc5 Rg5 Qbb4
bQB5/2k1b2P/KP2qr1R/1nBqPN2/2nN4/P1qn2P1/6pP/Q2rQ3 b - - 0 1 illegal: No possible last move
1k1n1Nb1/r1P1RnnQ/2nPPb2/P7/RB6/1PQN2p1/1P3rqr/1K3N2 b - - 0 1 illegal: No possible last move, all moves rejected
Q2Kn3/4Bq1P/3PB3/rnNP1kb1/1q2p2R/1PNP1q2/2Q1bqP1/N1r5 b - - 0 1 illegal: No possible last move, all moves rejected
4bNB1/Bq1b1rqQ/4PqP1/n1Nq1R2/4PbKP/1P1Q2Pp/4Bk2/5n2 b - - 0 1 illegal: No proof kernel
R2BK2N/rP2P1b1/1p1pP1QP/Nn3Bk1/2Q1P2b/1nqn4/6P1/B1b2b2 b - - 0 1 illegal: No proof kernel
R6R/P4Q2/BbP3n1/P1pRP1p1/P1n1N2q/1nr5/1P1qrN1n/1k1Q3K b - - 0 1 illegal: Other
1N1R1b1K/nPkp2P1/2n1P1q1/2rPrQq1/5n1P/2Rb3q/Pb2QB1R/4N3 b - - 0 1 illegal: No proof kernel
r1k2n2/PN1n4/2bpPRn1/1N1PP3/rB3RQ1/2r2bP1/P1N2b2/q1n1QK2 b - - 0 1 legal: proof: f4 a5 h4 e5 fxe5 g5 hxg5 c6 b4 Nh6 bxa5 Ng8 e3 Bb4 Ba6 Bf8 Bb5 cxb5 c4 f5 d4 h5 c5 h4 c6 h3 e6 h2 g3 b4 g6 b5 d5 f4 e4 b3 c7 b4 a6 f3 a7 f2+ Kf1 b2 g7 b3 Nd2 b1R Ndf3 b2 Qb3 Bc5 Qb6 d6 Qa6 Ne7 g8N Bb7 c8Q Rh4 Ne1 Ng6 Ngf3 Nf8 Qa4+ Nbd7 Nc2 Bc6 Kg2 f1N Ne5 Bf2 Nh6 Nd2 Nc4 Nb3 Bd2 Rc1 Na5 b1N Bb4 N1d2 Nb7 Nc4 Nf5 Nce5 Nfd4 Neg6 Nb5 Ke7 Re1 h1B+ Kf1 Bf3 e5 Qb6 Qc7 Qd4 Qca5 Qc3 Rb1 Qa1 Rd1 Rc4 Rb2 Rc3 Re1 Rb1 Rd1 Nc1 Rd4 Ke8 Rf4 Ke7 Qb6 Ke8 Qe3 Ke7 Qe1 Ke8 Nc5 Kd8 Nb7+ Kc8 Rb3 Rc4 Rd3 Rc3 Rf6 Rb2 Rd4 Rbb3 Rdf4 Ra3 Qb3 Ra6 Qc4 Ra4 Qce4 Rca3 Qf5 Rc3 Qg4
n1rB1n2/nq5P/1nPPPb1N/1RpNQr2/6K1/P1P5/2N1B2Q/r2k1b1q b - - 0 1 illegal: No proof kernel
3KR1Rq/Pb2P3/5r2/2p1B1bk/1n2n1P1/Q1P1nrB1/B2PP2b/2q1b1NQ b - - 0 1 illegal: No possible last move, all moves rejected
4B1r1/p1rQkb1P/1bP5/Nn2K1RN/2b1P1R1/q2q1P1R/P1P1Q3/3q1nb1 b - - 0 1 legal: proof: d4 c5 b4 f5 bxc5 e5 dxe5 h6 g4 Nf6 gxf5 Ng8 Bg5 hxg5 Kd2 b5 Kd3 d5 Kd4 b4 h4 b3 e4 b2 f6 g4 e6 g5 c6 g3 h5 g2 e7 g4 h6 g3 h7 Nh6 f3 Na6 Ne2 g1Q+ Ke5 d4 Rh4 d3 Nd4 g2 Nf5 d2 Rh5 Qd3 Ng3 Nf5 Qc1 d1B Rh6 Nc7 Rh3 Qge3 Nd2 g1B Bg2 b1Q Nb3 Be6 Qd2 Be2 Nh5 Bf7 Na5 Rc8 Qd1 Bf1 Qe2 Qbd1 Rb1 Ng3 Rb5 Bc4 Rd5 Nb5 Rc5 Kf7 e8R Bg7 Rg8 Rc7 Rd5 Bh6 Rg4 Rg8 Rc5 Ke8 f7+ Ke7 Rd5 Qec1 Rc5 Qca3 Rd5 Ra8 Rc5 Re8 f8Q+ Kd8+ Qe7+ Kc8 Rf4 Bf7 Qf2 Ne2 Kf6 Qc4 Rhh4 Ng3 Rh1 Bd3 Qe2 Rg8 Bf1 Qd5 Bh3+ Qd7 Rh4 Bhe3 Rg5 Bb6 Ke5 Nf1 Bg4 Bdc4 R1h3 Bgc5 Qd6 Kd8 Be6 Bg1 Rhg4 Ke8 Qdd3 Qd8 Bd7+ Ke7 Be8 Qd7 Qc3 Q7d2 Qd4 Qdd3 Qd7+
6r1/q3k2Q/2pb2P1/1rr1PnRP/NQPP1K1b/nRpbP3/3B4/Q3nB2 b - - 0 1 illegal: No proof kernel
1b6/3r3p/1q1B2q1/1B1R1nP1/P1Bq1PN1/1Q2PQrP/Pk1Np1r1/2nb3K b - - 0 1 illegal: No proof kernel
1R1N3b/P2p1PQn/2Q4q/1b2R1BP/1K1P4/n4nkn/p2PP1r1/qB1r3B b - - 0 1 illegal: No proof kernel
rQQ5/Q2R1qr1/NP1rk1Pp/1N1Pb3/P3p2P/Kn1bP3/3R2p1/n4Bn1 b - - 0 2 illegal: No possible last move, all moves rejected
Nrn5/PR6/KP1pQ1P1/B1P2bpr/2nQ1Q2/kP3p1r/3Pq1q1/2R1bB2 b - - 0 1 illegal: No proof kernel
2R1Qr2/1p1PP1qR/N1n1K1Q1/5pp1/2r2b1q/PP4P1/1N1n1Pb1/B1q2kR1 b - - 2 3 illegal: No possible last move, all moves rejected
B2nk2q/2P3R1/1K2pBpr/P1P1Pq1b/3NRpP1/5r1r/1QP4Q/3r1Rb1 b - - 0 1 illegal: No proof kernel
2Qbb1B1/1p1n1P1Q/2pP3Q/rPkb2P1/b3r3/P2pR1K1/1NPr1B2/3Rn3 b - - 0 1 illegal: No proof kernel
1r3b2/2KPpRpP/1RQPPr2/6N1/3r4/P1kp1Q1b/pqPRnB2/2N2n2 b - - 0 1 illegal: No proof kernel
3Q1R2/p1P1pp1P/1p3P2/n1B1R3/P1B2bPP/2k5/K1Br1nNb/1rqQb3 b - - 1 2 illegal: No proof kernel
n1K2k2/1rpn1pp1/R2P1P1b/3nn1P1/NPpQ1P1B/Q2RPR2/2bN4/3q4 b - - 0 1 illegal: No proof kernel
R2Rb1q1/2r3Pb/3PQkbr/NpQ1n1b1/3PP3/1P2pBp1/Np2P2Q/7K b - - 0 1 illegal: No proof kernel
3QR1Q1/rpnB1p2/b1p3NP/qP2p2K/k3b1P1/B1P1P1r1/2n4P/b4BqR b - - 0 1 illegal: No proof kernel
bb2rk2/N1pbqP2/3p3R/KN1n4/4PBPN/3Bqr1P/2BPP3/4R3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g3 g5 Bg2 h4 f3 g4 fxg4 Na6 Bb2 Nb4 Bc1 Nd3+ cxd3 Ra7 Bh3 Ra6 Bg2 Ra8 Qb3 f5 Bd5 f4 gxf4 e5 Be6 e4 dxe4 h3 Qf3 Bc5 Bb3 Bf8 Qg2 hxg2 a4 b5 a6 b4 a5 d6 a7 Be7 a6 Rh6 f5 Kf8 f6 Rh7 f7 Qe8 Kd1 Rb8 Kc2 Kg7 a8N Bf8 a7 Ne7 Nf3 g1Q Na3 Nd5 Nb5 Be6 Nb6 Bd7 a8B Qe3 Nh4 Qe7 Bb7 Re8 Nc8 Rh6 Nca7 Rf6 Ba4 Rf3 Ba6 b3+ Kb2 Ra8 Ka3 b2+ Bb3 b1B Ka4 Re8 Ka5 Ba2 Bc2 Bc4 Ba3 Bb3 Rae1 Ba4 Nc3 Bac6 Bc5 Ba8 Bc4 Kh8 B4d3 Bg7 Ncb5 Bd4 Bb6 Kg7 Bc5 Kf8 Bb6 Bh8 Bd4 Bf6 Be5 Bg7 Bf4 Be5 Rhg1 Bd4 Rg3 Bc5 Rh3 Bd4 Ng2 Bc5 Rh6 Bd4 h3 Bc5 Nc6 Ba7 Nh4 Bb8 Nca7
8/Pk1b1Pnn/3b3b/pr1nRb1N/R1Pr2PN/P3R1Bn/P1B1q1B1/K7 b - - 0 1 illegal: Other
1kq2B1N/3BKpqP/4N2R/1BnN1P2/2PPrPRp/1bP3bb/2r3n1/6r1 b - - 0 1 illegal: No proof kernel
2NRnB2/1k1P1qpP/2R1np2/3KPB2/q1NNP1Pr/5P1q/n3Rb2/5rq1 b - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 axb5 e5 dxe5 h4 c4 d4 Qd3 Bb7 Qg3 Bd5 cxd5 hxg3 Kd2 Kd7 Kd3 Kc8 Kc4 c5 b4 a5 h4 d3 b6 a4 f3 d2 b5 d1Q d6 a3 d7+ Kb7 h5 g2 h6 a2 Ba3 Qa4+ Kd5 c4 Nd2 c3 Rh2 c2 Rc1 a1Q Nc4 Bc5 e4 Qc7 Ne2 g1Q Nd4 Nc6 Re2 Nd8 Bb4 Ne6 Ba3 Kb8 b7 Qb6 Bb4 Q1a2 Ba3 Kc7 b8N Kb7 Nbc6 Qh1 Ne7 Qh3 Nc8 Ra5 Nb3 Bf2 Nd4 Qa7 Bf8 Nf6+ Kd6 Ne8+ Kd5 Ra6 b6 f6 Nb3 Kb8 b7 Rb6 Nd4 Rb1 Re3 Kc7 b8R Qb6 Ra8 Kb7 Re2 Ra1 Na7 Rh7 Rd8 Rb1 Nc8 Q2b3 Rce1 c1N Rc2 Na2 Bd3 Q3b4 Ree2 Qe7 Rc3 Rh1 Bc2 Qb1 Bb3 Qg1 Rcc2 Qf7 Rc1 Qhg2 Rc3 Rh8 Rcc2 Rh4 h7 Qh3 Rc3 Be3 N4b6 Qa3 Bd6 Nb4+ Kc4 N8c7 Rg8 Bf2 Ne7 Nf8+ Kc5 Qa2 Be6 Qc2 Bf5 Nfe6+ Kc4 Qcd1 Ra8 Rc8 Bc5 Ne8 Rc1 Na6 Kd5 Qa4 Ba3 Rc3 Rd8 Rd3 Rcc2 Rd1 Nec8 Rf1 Bf8 Nb4+ Kc4 Na2+ Kd5 Qe7 Rc6 Qf7 Nc4
3bn2r/2P1qqq1/b3r1NP/1k3b2/1PQ2N1N/2P2PKB/1BP1NnR1/3b4 b - - 0 1 illegal: No proof kernel
BNRB3q/Kb1P2b1/3P1bbn/4R2P/6P1/Bqbr4/P1k2Pb1/3B2Qn b - - 0 1 illegal: No proof kernel
1k2nK2/2P3n1/2pp4/B1NP1N2/RpRPPNqb/P2N1pb1/2P1r3/1rQ2r2 b - - 1 2 illegal: No possible last move, all moves rejected
q1R2r2/1p2n2K/1P2BbB1/BP1p2PN/qB6/2qk1n1P/PRp3Pr/1b3N2 b - - 0 1 illegal: No proof kernel
2B4q/3PP1pp/2r3q1/R1p4P/P1P2N1B/1Rp1Pr1k/NnPpK3/1r2Q3 b - - 0 3 illegal: No proof kernel
1N5b/bP2NpbP/2Pnb2Q/6RP/Pr1n3R/Kb4Br/P2P2Br/4q2k b - - 0 1 illegal: Other
3q3n/1Q2Pp2/bP4Pq/4N1BB/1Pk5/Ppr2nq1/2PnR1P1/b3rRNK b - - 0 1 illegal: No proof kernel
2B2b2/bKP5/1R2q1pB/P1r1PrPN/p2Pn1N1/P2q2k1/1p1R2Pr/1bn2Q2 b - - 0 1 illegal: No proof kernel
N2bb3/3PQP2/2P3K1/p1nN1PpR/1qb1B2p/P1R2BP1/2k3nP/r2rr2r b - - 0 3 legal: proof: e4 f5 exf5 c5 b4 d6 bxc5 Qb6 Ba3 Qa5 Bc1 Qd8 c4 Nf6 c6 Bd7 c7 Bc8 c5 Kf7 c6 Ke8 Ba3 Ng8 Bc5 dxc5 Ke2 Kf7 Ke3 Kf6 Kf4 e5+ Kg4 b5 Kh5 g5 f4 e4 d4 e3 g3 c4 d5 e2 d6 e1R Bd3 c3 Be4 c2 Qc1 b4 Bd3 b3 Be4 b2 Nd2 b1B Nc4 Qe7 Nb2 Nd7 Na4 Nh6 Qa3 c1R Nb6 Bd3 Rb1 Ng4 Ne2 Ne3 Rb5 Bc4 Rb4 Nc5 Nc3 Bd7 c8B Ng2 Ba6 Rd8 Na8 Ra1 Bc8 a5 Rb7 Reb1 Rd1 h6 Rd2 Rh1 Rd3 Bg7 Qb4 Rhe8 a3 Bf8 Bf3 Qe1 Rb8 Be7 Qb7 Qb1 Qa7 Qb4 Nd5+ Kf7 f6 Ke6 f5+ Ke5 Kg6 h5 f7 h4 Ba6 Bf6 Qb7 Re7 Bb5 Be8 Ba4 Re6 Qe7 Rd7 Bc2 Rd8 Rc3 Kd4 Bb1 Ree1 Bbe4 Ba6 Rd3+ Kc4 Nc3 Kb3 Nd5+ Kc2 Rc8 Bc4 Rb8 Bd7 Rc8 Rh8 Rg8 Be8 Rg7 Red1 Rh7 Rf8 Rh5 Rde1 Qe6 Bd8 Qe7 Rh8 d7 Rh6+ Kg7 Re6 Kh7 Red1 Kg7 Re5 Kg6 Kb1 Rd2+ Kc1 Bb1 Re2 Bbe4 Ree1 Rd3 Kc2 Rc3+
3r2Bq/P1p1p1Pp/npN4r/nP1NPRK1/P1P1r2p/Rb1k4/P7/r4QB1 b - - 0 1 illegal: Other
nbN1n3/n2P1p2/n1P1b3/5PB1/R1Nq2r1/PPP5/P1RpN3/1KQk4 b - - 0 1 illegal: Other
k1brrR2/5NQ1/2PP1n1n/RPP1Pn1B/2b2KR1/Pq6/2qn3P/Nr6 b - - 0 1 illegal: No possible last move, all moves rejected
B1KR3n/P2PpR2/kP1bbBb1/1n2Pb2/1PR3r1/r1P5/N2P1q2/2Q4q b - - 0 1 illegal: Other
3b3R/pr1P3P/1pPP1N2/b5r1/P2P2R1/3Q1P1n/2N2kqB/RKnbq1n1 b - - 0 1 illegal: No proof kernel
Q2r4/P2P2rn/4K1BP/bb5p/1rp1b1PP/1qPN1RB1/5P2/2RbnR1k b - - 0 2 illegal: No possible last move
q1B2RQ1/1P1b2P1/2pkP2K/2r4P/2Nrb2p/PqP1P1B1/p1Nn1Bnb/8 b - - 0 1 illegal: No proof kernel
6N1/q4p2/2Bpp2p/p1P1n2q/1Pr1qP1P/P1BkPN1K/1Q3NPR/5b1n b - - 1 4 legal: proof: d4 c5 c4 g5 f4 b5 cxb5 a5 b4 g4 b6 e6 Nd2 c4 Rb1 Ne7 Rb3 Ng8 Rf3 Bc5 dxc5 Ra7 bxa7 gxf3 Kf2 Ke7 Kg3 Kf6 a8N Kf5 h4 f2 a3 c3 e3 c2 Nb3 Ke4 Kg4 h6 Kh3 Ne7 Nc7 Ba6 Bb2 c1Q Nf3 Nf5 Ne5 Nc6 Nd4 Qe7 Bb5 f1Q Nc2 Qc4 Ne8 Ng3 Qd2 Qd1 Qc1 Qh5 Nd3 Ne5 Rh2 Nh1 Nd4 Qd5 Ng7 Rd8 Bc6 Bb5 Bc3 Ba6 Nb2 Bf1 Nd1 Kd3 Qb2 Qe4 Nf3 Qd6 Ba8 Qc7 Ne8 Qa7 Bd5 Rb8 Nf6 Rb6 Qf2 Rd6 Bc6 Rd4 Qb2 d6 Ng8 Rc4 Nf2+
bb1n4/p6p/P1b3QN/1R1n3P/n2k2BP/nP3KNp/1Pr1P1PB/7Q b - - 1 2 illegal: Other
2knb1b1/1P2R1r1/pB1pnb1p/K2P1Pq1/2B1R2P/PrQ3P1/3P4/1n1Q1N2 b - - 1 3 illegal: No possible last move, all moves rejected
1Q2R1B1/kQPR3n/1rP2PpN/1pP3Pr/nqqN1r2/pP5P/8/b5bK b - - 1 2 illegal: No possible last move
2Q3qB/1Pn1P3/p2Pp2p/P1Q1r2P/4kr2/R1N1Pbp1/KP2n1N1/R2br3 b - - 2 3 legal: proof: f4 b5 c4 f5 cxb5 g6 g3 Bh6 Bh3 e5 fxe5 f4 e6 f3 e7 Bf4 Be6 dxe6 gxf4 Kd7 a4 Kd6 d4 Kd5 Kd2 c5 Kc3 f2 Kb3 f1B h4 g5 e3 a6 b6 c4+ Ka3 c3 a5 c2 f5 g4 f6 g3 f7 Nc6 f8Q Bb7 Nh3 Nf6 Rg1 Ke4 d5 Ne8 d6 Be2 Nf4 Nd4 Bd2 c1R Ng2 Nc7 Ka2 h6 h5 Rb8 Qe1 Bd1 Bc3 Ne2 Rf1 Rg8 Bh8 Rg4 Qc3 Rf4 Qc5 Qe8 Rg1 Qg6 Qc8 Qg8 Qd7 Rbf8 Qc8 R8f5 Rh1 Bc6 b7 Re5 Rf1 Bc2 Rg1 Re1 Rh1 Bd1 Nc3+ Kd3 Rh4 Bf3 Rg4 Rf8 Rb4 Rf7 Rb3 Rf4 Na4+ Ke4 Rc3 Kf5 Ra3 Ke4 Nc3+
5B2/K1k3PB/P4pqb/1bp5/1n2nPR1/Pnn1pP2/1N2PBNP/2r1R3 b - - 0 1 illegal: No proof kernel
RB3n2/1PBkPq2/3bb1bP/2P1np1N/N3RKb1/PB3P1r/rq2P3/4n3 b - - 0 1 illegal: No proof kernel
1k4NB/1brQ4/1R1b1B1n/1N3BnR/1Q4BB/3B1qBr/3Q1nRr/4Kb2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 d4 Kd7 f4 e5 g4 c5 f6 Kc7 f7 h5 b6+ Kb7 d6 c4 d7 h4 d5 e4 f5 h3 d6 c3 g6 c2 a6+ Kc6 b7 e3 g5 h2 f6 e2 g7 Qe8 d8Q Ne7 g8B Bh3 d7 Nc8 g6 Na7 g7 Qe7 Nc3 Nc8 a7 Rh4 Nd5 Rg4 Bg5 c1N Ra6+ Nb6 Kd2 e1R Nf3 Qe8 Nd4+ Kd6 Ne7 Nc6 b8B+ Kc5 Nb5 Rh4 Bh7 Nd5 g8R Nc3 Rb6 Ne5 Bf5 Re3 Qc2 Rd3+ Ke1 Ng4 Qd2 Ne4 Bc7 Rc8 a8B Nh6 Bb8 Nc3 Bf3 Ne4 Rg6 Rh5 Ng8 Rc6 Bbf4 Bd6 f8B Rc7 f7 Qe6 Qe7 Qd5 d8B Qb7 B1e2 Bf1 Qd7 Rb3 Bdf6 Nd3+ Kd1 Ndf2+ Ke1 Rd3 B8g7 Qa8 Bh8 Kd5 Rg1 h1B B3g4 Rh2 Bh4 Kc5 B4e5 Rdh3 Rg5 Qa3 Rh5 Ng5 Bf4 Be4 Rg2 Qf3 Bd3 Bc6 Ra6 Ba8 Bfg3 Bb7 Ra5 Kb6 f8Q Be5 Qfb4 Bd6 Bc3 Ba8 Bcf6 Kb7 Ra4 Kb8 Ra6 Bb7 Rb6
B1r4Q/Q1bQ1QK1/4Q1n1/2r2r2/2kRN3/2N1Q1B1/1rBqr3/1R1R1bQr b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 a5 d4+ Kb4 f6 h5 d6 c5 d7 a4 d5 a3 b6 h4 f7 h3 b7 a2 b8Q+ Qb6 d8Q e6 d6 h2 d7 c4 Qe8 c3 d8R c2 Ne2 Rh5 Bf4 c1R Rd5 Rh3 Nbc3 Ne7 Kf6 Rg3 g8Q Rb1 g7 Ra3 g6 Ra6 Qa7 Qc5 Ne4 Qc6 Bg2 Rd3 N2c3 Qd7 Bg3 Kc4 b4 Rc6 b5 Ba6 b6 Rc8 b7 e5 b8Q Rb2 Rb1 a1R Qbb7 Ra4 Qh8 Ra5 g8Q Rac5 g7 Ng6 Qg1 Bd6 f8Q Bc7 Qge6 Rd1 g8B Rf1+ Bf3 Qd6 Qff7 Rff2 Ng5 e4 Kg7 e3 Bh7 e2 Nge4 e1R Qbc6 Qf4 Qcd7 Qd2 Q8e7 Rfe2 Qg5 Rd1 Q1e3 Rc1 Rd1 h1R Qg1 Rh5 Q5e3 Rf5 Nd6+ Kb4 Qh1 Re5 Rg1 Rh2 Rd3 Nh4 Ba8 Bc4 Bf5 Ng6 Rd5 Ba6 Be4 Rf5 Bc2 Bd3 Nde4 Kc4 Qg2 Re1 Rf1 Rh1 Qgh2 Be2 Qhg1 Bd3 Qf3 Re3 Rfd1 Bf1 Qff2 Re1 Qe3 Re2 Rd4#
K2NR1b1/5Q1B/1Q3RN1/Nn1n1NR1/3b3B/1r1pNpn1/2qN2B1/k1N4r b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 c5 fxe5 b4 d4 b3 dxc5 Nf6 axb3 Qb6 b4 Qd8 b5 Ng8 Kd2 Ke7 Kc3 Ke6 Kc4 g5 e4 f5 h4 g4 b6 d5+ Kb5 f4 c4 g3 b7 d4 h6 d3 h5 f3 c6 g2 h7 Qf6 Kb6 Qg6 c5 Qg3 c7 Nh6 c6 Qh3 a6 Ng8 a7 Qf5 h6 Qg4 Bg5 Ba3 Bh4 Bd7 c8N Qg3 c7 Qg5 Ne7 Be8 c8N Qc1 Nf5 Na6 b8N Bb5 Kb7 Qc2 Nc6 Bc4 N8e7 Qa2 Qb3 Qc2 Ne2 g1N Nd5 Bf8 Ra5 Nb8 Nd2 Nf6 Qb6 Nh3 Nc1 Nf4 Nde3 Qb3 Bg2 Rg8 h8N Rg4 h7 Bg7 Ng6 N6h5 h8N Bd5 Nf7 Ng3 Rg1 Bc4 Ra6 Nd5 Na5+ Nc6 Nd8+ Kd7 Bh3 Qc2 Bg2 Rc8 a8B Nd4 Ka7 Rb8 Bb7 Rg5 Ba8 Rh5 e6+ Kc8 e7 Kd7 e8R Rh8 Qb1 Rb3 e5 Nb5+ Kb8 Rh5 Rf6 Rh6 Bb7 Rh5 Ka8 Kc7 e6 Kb6 e7+ Kc5 Nh6 Kd4 Nhf5+ Kc3 Bc8 Bh8 Be6 Rh7 Bg8 Rh6 Bh7 Rh5 Re6 Bd4 Rf6 Rh6 Ref8 Rh5 e8Q Rh6 Qf7 Rh5 Qa2 Rh6 Qa4 Kb2 Qb4 Ka1 Re8 Rh5 Bg5 Rh1 Bh4 Na7 Qb6 Nb5 Qg7 Ne7 Qf8 Bg8 Qf7 Nd5 Bh3 Nf1 Rg5 Ng3 Bg2
1bN1r2n/8/1K1B2Bk/3RqR1Q/1nB2Bq1/4pQq1/R1pB1N2/B1qB3N b - - 0 1 illegal: No possible last move
Q1Nk4/RnpQ2Q1/1ppb3b/QB6/2K1Qr2/3n2RB/1N3Q2/BQN1r2q b - - 0 1 illegal: Other
1b2r2Q/q3RKR1/3kNpR1/p4p2/B2nr3/2B5/N1RR1Q1Q/1bR2qBR b - - 0 1 illegal: Other
RRn3nB/4N1N1/QQq1N1Qp/1pRR1p2/4R3/7k/2qnRR2/3bKBb1 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 a5 cxd5 a4 g4 a3 g5 Ra7 bxa3 Qd6 a4 Ra8 a5 Qd8 h4 b5 Nh3 f5 Bb2 h6 Bc1 Ra6 Ng1 Rf6 gxf6 g5 Rh2 g4 Rh1 Rh7 Rh2 Rg7 Rh1 Rg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 d4 Kf7 a4 Kg6 e4 c5 e6 g3 e7 c4 e8R c3 f7 c2 e5 g2 d6 Qb6 d7 Bd6 f8R Ne7 d8Q Nec6 e6 Bb4+ Nc3 Bb7 a6 Bc8 a5 Ne7 d5 Bb7 a7 Ba6 a8Q Qb7 d6 Nd5 e7 Qa7 d7 Qb6 Qh5+ Kh7 g6+ Kg7 Nf3 g1N Rh2 Nh3 Nd4 Qf6 Bb2 Ba3 Rc1 Bb7 a6 Qg5 a7 Qg2 Qb6 Bc5 d8R Nf6 Nd5 Nc6 Bc3 Qf3 Re2 Ng1 Qc8 Qe4 a8R Na7 Qg5 Bc6 Qca6 Nc8 Qg3 Ng8 Bb2 Kh8 g7+ Kh7 Ne6 Qd3 Qd6 Kg6 Qg3+ Kh5 Qg6+ Kh4 Rb8 Nf6 g8R Qe4 Rg7 Ng8 Ra8 Qg2 Rd7 Kh3 Bd4 Nd6 Reb8 Nc8 e8N Bb7 Ne7 Bf3 Re4 Bd1 Rd5 Ne2 Ba1 Nc3 Bb2 Nb1 Be5 Nf6 Rgg8 Nd2 N8g7 Bg1 Re8 Be2 Rd1 c1Q Rc5 Qc2 Bd4 Nc4 Rd2 Bf3 Rde2 Bg4 Rd8 Nd2 Rdd5 Qa2 Rf2 Bd1 Rfe2 Qc2 Nh5 Nd7 Bh8 Nf6 Nhg7 Qa2 Ne8 Kh2 Rec4 Na7 Rd6 Nd5 Qg4 Nc8 Rg5 Qc2 N8g7 Nf6 Qg3+ Kh1 Rd8 Qc6 Rdd5 Ng8 Rce4 Qa4 Qg4 Qc2 Qh5+ Bh2 Qg6 Bg1 R2e3 Kh2 Rgg4 Bf3 Rg2+ Kh3 Ree2 Bh5 Ref2 Bd1 Rfe2 Qa4 Nf8 Qb3 Nfe6 Qc2 Rgf2+
3BB3/K1n1Q1N1/1Q1r2b1/B2BN3/r1Rk1B1n/R1bB2B1/q2Rqn1Q/r2b4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 a5 g4 h5 f4+ Ke4 b4 e5+ d6 a4 d4 a3 f6 h4 b6 c6 b5 a2 f7 h3 f5 h2 d5 Ra7 g6 Rh6 b7 Ne7 d7 Rh4 g5 Bh6 f8R Qa5 d8B Qa4 Kb6 c5 g7 c4 g8B c3 f6 c2 g6 Bf5 g7 Qa3 f7 Ra8 Nf3 Qd3 Qe2+ Qe3+ Nd4 Rf4 Na3 Bg6 Nc4 Na6 b8Q Nc5 Nf5 Bh7 Qb7 Rb8 Ka7 Rg4 Ba5 Na6+ b6 Nc7 Rd8 Ng6 f8Q Nh4 Qe7 Bg6 Bf7 Rf4 g8B Bg7 Qf2 Qa3 Be8 Bh8 Rg1 h1B Qh2 Bf3 Rg5 Bd1 Qc6 Bf6 b7 Qb2 Rd7 Rd8 Ng7 Qb3 Bcd2 c1N Qb6 Nd3 Be1 Qb2 Bg3 Nf2 Bgf7 Rf3 Rh5 Ra3 Rf5 Ra4 b8B Ne6 d6 Qc2 Rc1 a1R Rf3 Qa2 Ra3 Kd5 Rc2 e4 Rc7 e3 d7 e2 Rd2+ Ke4 Rc5 e1Q Bbf4 Bc3 Ne5 Nc7 Bd3+ Kd4 Bd5 Qe2 Bef7 Rf8 Be8 Rf6 d8B Rd6 Rc4+
R2B1rqR/1qr1R1b1/2R2RQ1/1b1R3b/2qQ1n2/2nQ1N1b/6RB/1BN1k1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 f5 g4 h5 b4 c5 e4 a5 b6 h4 e6+ Kd6 b5 c4 e7 h3 e8R c3 g6 a4 g5 c2 g7 h2 b7 f4 g6 f3 b6 a3 e5+ Kd7 e6+ Kd6 e7 a2 Qd3 Rh7 Nd2 Rh4 Ne2 Re4 Nc4+ Kd7 d6 Kc6 d7 Kb5 d5 Kb4 d6 Nf6 g8Q Nh7 g7 Qc7 d8R Nc6 b8B Nf6 b7 Ne5 d7 Nd5 Bg5 Nc3 Nc1 Ng6 Ne5 Rc4 Qh8 Rc6 g8R Bg7 Qh5 Rc4 Ref8 Nf4 e8R Qc6 Rg1 h1B Rf6 Bg2 Qh6 Bh3 Qhg6 Qe4 Bh4 Rc7 Rg2 Qc6 Kg1 f2+ Kh2 Qd5 Rh8 Qg8 Re7 Bg4 Be2 f1B Kg1 Bh5 Bf3 Be2 Be4 Bf1 Rc6 Bfe2 Rf8 Bf1 d8R Bh3 Rd5 Bfe2 Ba7 Rd8 Rff6 Rf8 Bb8 Bf1 Ne2 c1Q Qd4+ Kb3 Bb1 Qc2 Nc1+ Kb2 Ba7 Bb5 b8Q Qe2 Qd8 Qc2 Ne2 Qb3 Bg3 Qc4 Bb6 Kb3 Bh2 Kb2 Ng3+ Kc1 Qd6 Rd7 Bd8 Rc7 Nd3+ Kd1 Ne2 Kd2 Ne5+ Ke1 Qa3 Nd1 Qad3 Nc3 Nc1 Qa4 Bc2 Qc4 Rb1 a1Q Rb2 Qf7 Ra2 Qg8 Ra8 Qa6 Bb1 Qb7 Nf3#
NnN1rNb1/2K2QBq/q1Rr4/2NQb2B/1kQ4N/6R1/qNqn3r/N2R4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 g5 h4 a5 d4+ Kb4 f4 c5 d6 c4 d7 g4 b6 a4 h6 e6 d5 a3 h5 c3 h7 c2 d6 g3 f6 g2 h6 a2 f7 Ra6 b7 Ra8 f5 Ra3 f6 Qe8 d8Q Ra6 d7 Ra5+ Qd5 Be7 f8Q Ra6 f7 Ka4 b4 Bh4 b5 Nf6 b6 Bf2 Kd6 e5 Nd2 e4 Ne2 g1R Nd4 e3 Nc4 e2 Nb2+ Ka3 Qc4 e1Q Nb3 Nc6 b8N Bh4 b7 Q1e2 Rh3 Ne4+ Kc7+ Nd6 Rg3 Rg8 h8R Be7 h7 Qd2 Be2 Ra4 Bh5 Nd4 Nc6 Ra6 b8N Rh1 Na7 Bf6 Qg7 Qee1 f8N Qe4 Qgf7 Be5 Qg5 Qg6 d8N Be6 Nb7 Rh2 N7c5 Nc6 Nbd7 Nb8 Nb6 Qgd3 Rb1 a1Q Na8 Qg2 Bd2 c1Q Bc3 Qcc2 Rd1 Qge2 Qd2 Qa2 Na1 Rb6 Nc8 Ne4+ Nd6 Qf1 Qg2 Nd2 Qgd5 Bd4 Nc8 Rd6 Nfd7 Re8 Nf8 Be5 Rhg8 Bf6 h8N Qh7 Nhg6 Be5 Nh4 Qfd3 R8g6 Qe2 Qg7 Bg8 Qgf7 Qf1 Qf4 Qa6 Qf1 Bh8 Bg7+ Kb4 Qe2 Rdd8 Rc6 Rd6 Bh6 Bf6 Bg7 Be5 Qec4+
qq1Rb1N1/NQ1Q2q1/N7/1B2b3/N2NNRb1/n1qQ1NK1/2Rr3r/B3n2k b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kf7 g4 e5 b4 a5 f4 h5 Kf2 c5 f6 Kg6 f7 e4 b6 c4 b5 h4 b7 h3 d6 h2 d5 a4 d7 e3+ Kg3 e2 f5+ Kg7 d6 c3 b6 a3 g6 Kf6 g7 Ke5 g5 Ke4 f6 a2 g6 c2 Nf3 Ne7 g8N Rh5 g7 Rha5 Bb2 Na6 b8Q c1Q b7 Nd5 Nc3+ Ke3 Na4 Qb1 Qc7 Nf4 b8N Nb4 Na6 Nc2 Qb7 Nd3 Be5 Qb4 Rc1 Rd5 Ba1 Na3 Rc2 Ne1 Rg1 Be7 f8N h1B f7 Bf6 Ne6 Rd2 f8R Be5+ Rf4 Qe7 d8Q Qf6 Qbd7 Qb8 Qb7 Qf7 Ned4 Bg4 d7 Qg6 Ng5 Bc6 Nf6 Qh7 g8N Qg7 Qdc7 Bb5 d8N Be8 Ngf3 Ra7 Bb2 a1Q Qd7 Qa2 Ba1 Qd5 Qbb1 Qda8 N8c6 Rb7 Rh1 Rb2 Rh8 Ra2 Qbb7 Rb2 Kh4 Kf2 Na7 Ra2 Ng5+ Kg1 Ngf3+ Kh1 Ne4 Rb2 Qb1 Rb6 Kg3+ Rh6 Q1b3 Rh2 Ngf6 Beh5 Rd8 Be8 Qe3 Ng2 Ng8 e1Q+ Qf2 Qe3 Bb5 Ne1 Qe2 Qc3 Qd3
q2Q1bKN/nB1BRN2/R2B4/4bB1r/7q/3b1B1n/kBB1QNQ1/b1r4q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 c4 d4 a4 g4 c3 b4 a3 d6 h4 b6 Kc6+ e6 h3 e5 Kd5 d7 h2 g6 a2 e7 c2 e8B f6 b5 Bc5 b7 Rh3 g5 Qb6 e6 Rd3 d8N Kc4 d5 Kb3 g7 Bb4 Kg6 f5 Kf7 f4 d6 f3 d7 f2 g6 Qa5 e7 Nf6 g8B Qa7 b6 Ba5 g7 Ng4 Bb2 Na6 b8B Rd2 b7 Nb4 Nf3 Bb6 Ba6 f1Q Bh7 Qg1 g8B Bd4 Bf5 Nf2 Ng5 Ng4 Qe2 c1B Nc3 Bg7 Bgh7 Qg2 Nd1 Qe4 Re1 h1Q Bd6 Nc6 Kg8 Nf2 Ngf7 Rd5 Nh8 Be5 Bh5 Nh3 e8B Qh4 Ndf7 Bh6 d8Q Bf8 b8Q+ Qb7 B7g6 Na7 Bf3 Be6 Qbc7 Rc8 Bd7 Qa8 Nf2 Ra5 Qc1 Bc4 Qcg5 Bd3 Bab7 Rc1 Qg2 Rb5 Rb1 a1B Bh7 Rc6 Rbc1 Rc7 Rc6 Ka2 Ra6+ Ra5 Bhg6 Rc1 Qef1 Bd4 Re7 Be5 Qe2 Beg7 Ba4 Rac5 Bfd7 Rh5 Bgf5 Be5 Bc2+
2Q1Rr2/1K2b1QN/Nb1B1qR1/1bqk2Q1/1r2Nnb1/4rB2/N4B2/NN1n3N b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ra6 Kf7 Qg4 e5 Ke2 c5 Kd3 h5 Kc4 h4 b4 h3 f4 e4 d4 e3 f6 h2 f5 e2 g6+ Ke8 b6 Kd7 Kb5 Kd6 b7+ Nc6 b8B+ Qc7 g7 e1B f7 c4 f6 c3 Be3 c2 Be2 c1R Bf3 Rh7 Ne2 Rh4 Ng3 Bd2 Re1 Rd1 Nh1 Nh6 g8N Bg7 f8N Bc3 f7 Rc1 Nf6 Ba1 N8d7 Nf5 f8N Bh8 Nc5 Bb7 N8h7 Ng3 Nb3 Ke7 d6+ Kf7 d7 Rc4 d8Q Na5 d5 Rc3 d6 Ne2 d7 Nc4 Re6 Bc6+ Ka6 Ba4 b5 Nb2 b6 Nd1 b7 Bc6 Nd5 Bd4 Nb4 Bb6 Bf2 Ba4 Rg1 Re3 g3 Qc1 Bd6 Bf6 b8N Bb5+ Kb7 a5 N8a6 Qc2 Qc7 Rf8 Re8 a4 Qf4 a3 g4 a2 g5 a1Q Na2 Qab2 Na1 Qc5 Rg4 Qbe5 d8Q+ Qe7 g6+ Ke6 Rg3 Rg4 Qh6 Rb4 g7 Nf4 Qh5 Bg5 g8N Bh4 Ngf6 Bg5 Ne4 Kd5 Rg4 Qe5 Qg7 Be7 Rg6 Qg5 Nhg3 h1B Bg2 Qf5 Qg5 Qe5 Qc8 Qf5 Bf1 Bf3 Nh1 Bg4 Be2 Qe5 Bf3 Qf5 Q5h6 Qf6 Qg5+
k4n1Q/N4N2/N1B2KQn/3N3N/1NRB3r/1bnqr3/q3NbQR/1B1n3r b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 Kb7 g4 h5 b4 a5 d4 h4 f4 h3 g6 e6 g7 h2 f6 a4 d6 c4 d5 c3 f7 c2 d7 a3 g5 a2 f5 Qe8 d8N+ Ka7 d6 Bd7 g6 Bc6 f6 Be7 f8N Na6 d7 Bf3 f7 Nb8 Nc3 Bg2 Qh5 Bc6 Bg2 Na6 b6+ Kb8 b5 Bd5 b7 Nb4 Nge2 Ka7 b8N Nf6 g8Q Na6 g7 Bc5 Ng6 Nc7 f8Q Bf2 Bb2 c1N Nf7 Qd8 Na6 Bb3 Nd5 Rb8 b6+ Ka8 Rb1 a1Q Bd4 Na2 Nab4 Nc3 Rbc1 Qa2 Ngf4 Rh7 Qh3 Rh4 Nh5 Rc8 Qh7 Ng8 Qg6 Nh6 g8B Rb8 Rc2 Rb7 Rhc1 h1N Bh7 Ra7 Qh8 Ra3 Kd6 e5 b7+ Kb8 Qhg3 e4 Ke5 e3 Be4 Ne6 Qg2 Nf8 Rb2 Qb6 d8N Qb5 Kf6 Qd3 Bf3 Bg3 Rbc2 Nf2 Rh1 Nfd1 Rh2 Bf2 Rc1 Nb5 Rc5 Ka7 b8N Nbc3 Ndc6+ Kb7 Na7 Ka8 Nc1 e2 Rc4 e1R Ne2 Rh1 N8a6 Ra5 Qgg8 Rc5 Bf5 Rc8 Q8g6 Re8 B5e4 Re7 Bf5 Re3 B3e4 Qdc2 Bd7 Qd2 Bb1 Qd3 Bc6#
bR1rBKBB/2kB2p1/nr2B2Q/r1NB4/R3nb2/1N1B2bn/R4QQ1/4q3 b - - 0 1 illegal: Other
N2b2N1/Rb1kQKN1/3N1bnQ/R2N3N/1rpb4/B2q2r1/1Q2N3/1b1B1nR1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 c5 Ke3 a5 Ke4 e5 f4 h5 g4 a4 d4 h4 b4 a3 d6 h3 Kd5 c4 b6 a2 g6 e4 d7+ Ke7 g7 h2 f6+ Kf7 b5 e3 g5 e2 b7 e1B f5 Qe7 d8N+ Ke8 g6 Kd7 b6 Qe2 f7 Qc2 f6 Ra3 Qh5 Qb2 Ne2 Beb4 Rg1 Bfd6 f8Q Na6 b8Q Qd2 b7 Qh6 f7 Be1 Ne6 Bf4 Nc7 Bh4 Na8 Rb3 Nbc3 Rb1 Ba3 Qh7 Qh6 h1B+ Bg2 Nc5 Bf3 Be3 Qe5 Ne4 b8R Be7 Rb5 Ng5 Ra5 Ne6 Qb8 Bd8 Qb2 Ba6 Qe7+ Kc8 f8N Ng5 Ne6 Bg2 Ke5 Ne4 d5 Beb6 d6 Nd2 Nd5 Nf1 Kf5 Bb7 d7+ Kb8 Bh5 Bd4 Ra7 Be4+ Kg5 Nf6 g8N Ng4 g7 Ne5 Kf6 Ng6+ Kf7 Bc2 Ngf6 Rg8 Bg4 Be4 Nh5 Bf5 Qc2 Rb4 Qb2 Bb1 Bf3 Bc7 d8N Kc8 Ng5 Bcb6 Nde6 Bd8 Ne4 Bf6 Qc5+ Kd7 Nd6 Nf8 Ra5 Qd3 Qa7 Ng6 Bg4 Re8 g8N Bd4 Bf3 B4f6 Neg7 Re3 Nec3 Bd4 Bd1 Rg3 Ne2 Bc2 Rc1 Bb1 Rc3 a1B Rb3 Ra4 Rb6 B4f6 Rba6 Rb4 Qc5 Bd4 Ra7 B4f6 Qc2 Bad4 Qb2 Bde5 Qce3 Bd4 Qe7+
Q2rr1N1/k5BB/B2qNR2/2R3Bb/3Qn1rb/1B1RB2K/Q2np3/4b1Bb b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 c5 Kg3 Kc7 d4 Kb6 b4 h5 g6 e5 d6 a5 d7 a4 g7 a3 d5 a2 f6 h4+ Kh3 c4 g4 e4 f5 c3 d6 c2 g5 e3 g6 Ra5 f7 Kb7 b6 Rh5 f6 Rh6 b5 Ra6 Nd2 Qc7 Ngf3 Qc5 Ng5 Qc7 Ne6 Be7 f8Q Ra3 d8B Ra4 d7 Rh7 f7 Ra8 Ne4 Qf4 Qd4 Ra7 Nf6 Nh6 g8B Na6 g7 Rh8 Bh7 Ng4 Qg8 Qd6 f8B Ra8 Bc4 e2 Rf1 Nh2 Be3 Kb8 b7 Nf3 Rac1 a1R Qf7 Ra2 g8B Nc5 Bg7 Nd2 Bb3 Ka7 b8B+ Kb7 b6 Nce4 Ba7 Ra4 Rf5 Ka6 Rcf1 c1B b7 Bb2 b8Q Bc3 Rc5 Rc4 Kg4 h3 Bg1 h2 Kh3 h1B Rf3 Bf8 Be7 Bb4 d8R Bd7 Rd3 Be8 Rdc8 Ba5 Rf5 Bc3 Rcc5 Ra4 Qd8 Kb7 Qa5 Rd8 Bc4 Ka8 Ba6 Rc4 Qa2 Ra4 Qg6 Bf7 Qg5 Bh5 Qg2 Re8 Bd8 Be7 Bf7 Rb4 Ng8 Bh4 Bg5 Rd8 Rf6 Rc4 Nh6 Rhe8 Ng8 Ba5 Nf4 Ra4 Bb3 Bc3 Bb6 Kb8 Ne6 Rb4 Bc7+ Ka7 B1e3 Rc4 Bb6+ Ka8 Bf2 Nb1 Bg1 Bce1 Qdb2 Nd2 Qg3 Nc3 Rc6 Rd7 Qf3 Rg4 Bbe3 Rdd8 Rc5+ Ka7 Qd5 Nce4 Qbd4 Rd7 Qc6 Rdd8 Qa8+
1N4R1/2r2NKN/1b3Q2/1rNB2R1/kN1Nn1bq/8/pQ1rB2b/1nr1BQ1N b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 a5 Ke5 h5 g4 e6 b4 h4 d4 c4 f4 a4 g6 a3 g5 a2 f6 c3 b6 h3 f5 h2 d6 Kc6 d7 c2 d5+ Kb7 g7 Rh5 f7 Rh4 d6 Kc6 f6 Rf4 b7 Rd4 b5+ Kb6 g6 Ka5 b6 Na6 b8N Qc7 d8N Rd2 b7 Nb4 Ne2 Qc6 d7 Qc3+ Nd4 Rg2 Nbc6+ Ka4 b8N Qb3 Nb7 Be7 f8Q Ra6 d8N Rb6 f7 Qa3 Bd2 Nh6 g8Q Qh3 g7 Bd6+ Kf6 e5 Rg1 h1R Be2 e4 Qh8 e3 g8B Bg4 Qf1 c1R Kg7 Nd5 Be1 Bh2 Nb4 Qh4 Nd2 Rb5 Ne4 Rc7 Nf2 Nc3 Qd6 Nb1 Qf6 Rc3 f8N Nf7 Nh7 Ng5 Be6 Ne4 Nf7 Rc8 Bd5 Rc7 Nd1 Rf2 Rg3 Rg2 Nf2 Rhg1 Nh1 Rf2 Bec4 Rd2 Rg2 e2 Bd3 Bf5 Rg5 Bg4 Nc5+ Ka3 Bg3 e1B B3c4 Bf2 Be2 Nbc3 Rd1 Be3 Be1 Nb1 Ncd3 Ka4 Rc1 Re7 Rc8 Rc7 Rg8 Bf2 Ndc6 Ba7 Nd4 Bb6 Nc5+ Ka5 Nde6 Qg3 Qb2 Rd7 Bf2 Rd1 Kf8 Rc7 Qg2 Qh3 Nd4 Qh4 Qf6 Rd2 Kg7 Re1 Qf1 Rc1 Nce6 Ka4 Bg3 Rdd1 Be1 Rd2 Nc5+
R1r4Q/1p5K/1BbbB3/2n4b/R1bkr1Q1/3q1n2/BN1Q3Q/r1QNNQ1Q b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 Ke3 h5 Ke4 c5 g4 h4 d4 c4 a4 c3 d6+ Ke6 d5+ Kd7 Kf5 c2 e4 h3 a6 h2 a5 f6 Kg6 f5 a7 f4 a6 f3 e6+ Ke8 e5 f2 d7+ Ke7 Ra4 Qa5 Bh3 f1B Nc3 Be2 Be3 c1R Nf3 Ra1 Qf1 Rh7 Nd1 Qb5 Ne1 Nf6 Bb6 Bg7 d6+ Kf8 e7+ Kg8 e8N Bf8 d8Q Bc4 d7 Bd6 e6 Qb2 e7 Bb4 Nd6+ Ne8 Qc7 Qd4 d8Q Be2 Qc1 Bd2 Nc4 Qe3 Ncb2 Bb4 Qdd2 Ng7 e8Q+ Bf8 Qe4 Bb5 Rg1 Nf5 Qh1 Bc4 Rg3 Qd4 Rga3 Nd7 Ra2 Rb8 a8Q Re7 a7 Re2 R2a3 Bd6 Ra2 Kf8 Kh7 Kf7 g6+ Kf6 g7 Ke5 g8B Qe4 g5 Nd4+ g6 Nc5 Bhe6 Qd3 Bgf7 Re4 g7 Nf3 g8Q Bd7 Qg4 Rc8 Qb8 Bc6 a8Q Be8 Bg8 Bh5 R2a3 Bb5 Ba2 Bc4 Be6 Kd4 Qc7 Rf8 Qab8 Rc8 Ra8 Rg8 R3a4 Rc8 Qhg2 h1B Qc6 Rd8 Qh2 Rg8 Qd8 Re8 Qdh4 Rc8 Qe8 Bg2 Qh8+ Ne5 Qhg5 Rf4+ Q4f5 Bc6 Qgg2 Rg4 Qgh1 Re4 Qhf8 Nf3 Qg4 Bg3 Qfg8 Bd6 Qh8+
qN1nKQ2/5p1b/r3BB1k/Q4BN1/BRnq1B2/R1N5/nQr4n/5BbB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Rh4 a5 Kf2 h5 Ke3 c5 Kf4 c4 g4 a4 b4 a3 e4 c3 d4 c2 g6 a2 b6 Ra4 b5 Nf6 Kg5 Bg7 e6 Kf8 e7+ Kg8 e8B Qd7 b7 Qd6 e5 Ra6 b6 Qd8 e6 Qc7 d6 Ra8 d5 Bf8 d7 Kg7 d8Q Bc5 e7 Rg8 d6 Ra5 d7 Ra6 Qd4 Qg3 Qb2 Qc3 Nh3 Qb3 Nc3 Nc6 b8Q Ra8 b7 Na7 Qa5 Bg1 d8B Bf5 Ba4 Bf2 e8B Qd5 Bed7 Bg1 Be6 Nc6 Qd6 Qc5 b8N Ra6 Be3 c1N Qf8+ Kh8 g7+ Kh7 Be7 Nd8 Bd2 Rh8 Be3 Ng8 Bd2 Nh6 Kf6 Bg6 g5 Qa7 Rb4 h4 Rb1 a1N Bf4 Nab3 Ra1 Nd2 Ra2 Nc4 Ra3 Nb7 Bd8 Qd4+ Ke7 Ng4 Ke8 Na2 Bf6 Bd3 g8B+ Kg6 Qc2 Nd8 Bh7+ Kh5 g6+ Bf5 Nf2 h3 g7 h2 g8B h1Q Nh3 Qa8 Ng5 Bd3 Be4 Rh7 Beg2 Kg6 Qe5 Rh2 Bh1 Be4 Qb1 Rc2 Qa5 Nh2 Bh7+ Kh5 Qb2 Bd3 Bhf5 Be4 B5h3 Bh7 Bhg4+ Kg6 Bgf5+ Kh5 Qg8 Kh6 Qf8+
R2B3R/1b2qRR1/qQ2rQ2/NNQ2R1p/2B2p1r/4nBk1/4Kb2/2b1nR1R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 g4 c5 b6 h5 d6+ Ke6 d7 a4 b5 a3 d5+ Kf7 g6+ Ke7 e6 Kf6 g5+ Ke5 e7 a2 e8R+ Be7 g7 c4 g6 c3 b7 c2 b6 Qc7 d8Q Qd7 d6 Nf6 g8R Nc6 b8R Rh7 b7 Na7 g7 Qb5 d7 Qb2 Bg5 c1Q Ne2 f4 Nbc3 Qbc2 Ref8 Qd3 Bg2 Qcc2 Nb5 Qc6 Qb6 Qc5 d8Q Qdd6 Nc1 Rh6 Bf3 Ng4 Qc2 Nc6 Rf7 Ne3 Nb3 Nb4 Na5 Re6 Ke2 Nd3 Raf1 a1B Qf8 Ra6 Ra8 Bb2 b8R Bc1 Rh8 Bb7 g8R Qa3 Rgg7 Ne1 Qfd8 Rg6 Qcc5+ Ke6 Bf6 Rg4 e5 Kf5 e6+ Qe5 Qdd6 Rh4 Rbf8 Bd8 e7 Qa1 Qbc6 Bb6 e8B Ba7 Q5b6 Qe7 Qcc7 Qa3 Bec6 Qa1 Bcd5 Qa3 Qdd8 Qa4 Qbc5 Re6 Q7b6 Qa3 Nc6 Qa6 Na5 Re4 Bc4+ Re5 Bfd5 Re6 Bg5+ Kg4 Bf3+ Kg3 Rf5 Bb8 R8f6 Be5 Rff7 Bd4 Qdd6 Ng4+ Qde5 Bf2 Bf6 Qd6 Bd8 Qe7 Rgh7 Ne3 Qg7+ Rg4 Qf6 Rh4 Rhg7+
3R1R1Q/RRNK1N2/1r1Rn3/BQp1k3/1b2B1R1/1n4pn/b3qBr1/q3NR2 b - - 0 1 illegal: No possible last move
2bK4/2pR1q2/B1B1B1B1/R1QBRp1r/3b1q1r/1NBnQ3/1k5N/2rQ2nB b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 Ke3 h5 Ke4 b5 d4 f6 a4 h4 g4 h3 g6 h2 a6 b4 g7 b3 d6+ Ke6 d7 b2 a7 Nc6 d5+ Ke7 Kf5 Bb7 e4 Qc8 a5 Rh5+ g5 Nb8 a6 Bc6 e6 Kd6 d8Q+ Kc5 e5 Kb4 d6 Qd7 Nd2 Kc3 Nb3 b1R Bb2+ Kb4 Ra5 Qe8 d7 Be7 Nf3 Ba4 Bc3+ Ka3 Qd4 Ra1 Qc5+ Ka2 Rg1 h1Q Nh2 Rh7 g6 Kb1 Rg5 Bd6 e7 Qf7 e8B Nc6 e6 Nb4 e7 Rc8 a8B Rh6 a7 Bg3 Bc6 Be5 a8B Rh5 Ba6 Qc1 Bh1 Bd4 Bac6 Rh4 Rh5 Nd3 Rg5 Qf8 Ke6 Nh6 g8B Nf5 g7 Ng3 Re5 f5 Bg6 Qf4 e8Q Ne2 B8f7 Rh5 g8B Ng1 Qee7 Kc2 Qg5 Qg7 Ke7 Rc1 Qg3 Rb8 Qe3 Rb4 Ke8 Qh7 Bfd5 Kb1 Bge6 Kc2 Qh4 Qf7+ Kd8 Kb1 Qg4 Kc2 Be1+ Kb2 Qd1 Rbc4 Kc8 Bb5 d8R Ra4 Rd7 Bc4 Bab7 Ba6 Kd8 Rb4 Ba8 Bc8 Bab7 Rbc4 Ba6 R4c2 Ng4 Rch2 Bb4 R2h3 Nh2 R3h4 Bc3+
6qN/R1N2p2/5KnN/2Br1p2/1NkN3R/1N1Qnb1p/Qn1B2BQ/4bNr1 b - - 0 1 illegal: Other
k1NB1N1q/3Q4/qbNQRB1Q/1n4R1/3b3r/QQ3b1B/6nQ/2Kbq1R1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 f4 h4 f3 hxg5 Na6 g6 Rb8 g7 Rb6 g5 Rf6 g6 Rf5 Rh5 Rg5 Rh1 Rg3 fxg3 Nb8 g4 f2+ Ke2 Qd7 g5 Qd6 Bg2 f1N Ke1 Ne3 Bf1 Nf5 exf5 Qd8 b4 Kd7 d4 h5 Kd2 e5 d6 c5 d5 a4 f6 c4 f7 a3 b6 e4 b7 h4 b5 a2 b6 h3 Bb2 c3+ Kc1 e3 Na3 e2 Qd2 e1B Nb5 h2 Nf3 c2 Bf6 Qc7 Na7 Nh6 g8R Nc6 b8Q Bb7 g7 Nf5 g6 Rh7 Rg1 h1B Nd4 Ne5 Nc8 Rh6 Bh3 Nf3 Nc6 Rh4 Qh6 Qd8 Rg5 Be7 Re8 Nd4 g8Q Bc3 g7 Bf3 Qf8 Bd1 g8Q Nb5 Qgh8 Ba8 b7 Bd4 Qa7 Qb6 Qa3 Qa6 b8Q Bd8 Re6 Ne3 Rb1 a1Q Qb7+ Nc7 Qbb3 Nb5 Qfg7 Ng2 Q8h7 Be7 f8N+ Ke8 Qe4 Bf2 Qf4 Qe5 Kd2 Bg4 Na5 Kd8 d7 Kc7 d8Q+ Kb8 d6 Bd4 d7 Be2 Qh2 Bec5 Rg1 Bb6 Be7 Baf3 Nc6+ Ka8 Qf7 Qh8 Bf6 Bd5 Qfe7 Bg4 Qed6 c1Q+ Kd3 Qe3+ Kc2 Qe1 Q8c7 Bh5 d8B Bd1+ Kc1 B5f3 Qcd7
n2N1b1Q/2rp1QR1/1rNB4/p1R2K2/1R1R2R1/1B6/1Bn1Nn2/R1nk1r1Q b - - 0 1 legal: proof: c4 b5 e4 c5 g4 f5 exf5 h5 gxh5 b4 d3 b3 axb3 Ba6 Bh3 Qc8 Bf1 Bb5 cxb5 c4 Kd2 c3+ Ke1 Qc4 dxc4 Rh6 Bh3 Rh7 Bf1 Rh8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 h4 Ke4 f4 g5 f6 a5 f5 e5 h6 c2 c5 Bd6 b6 Rh7 c6 Bc5 f7 Rh8 f8N Be7 h5 Ba3 h7 Na6 c7 Ne7 c8R Nb8 f6 Ra6 b7 Nbc6 b8B Nb4 f7 Nbc6 h6 Ng6 b4 Nd4 b5 Rg8 h8R Be7 b4 Bd6 b6 Nf5 b5 Nd4 b7 Be7 b6 Nc6 h7 Bf6 Bc4 Nge7 Rh4 Bg7 Nd2+ Ke3 Ne2 e4 Bb2 c1N Nf3 Nb4 Qh1 Ned5 Rc5 Nc7 Nfd4 Kd2 Nfe6 e3 f8Q Na8 Nc6 Nbd3 Bb3 Nf2+ Kf5 g4 Ned8 g3 Qf7 g2 Bd6 g1R b8R Bf8 b7 Rb6 Rg4 Rf1 Rc8 Rg6 b8R Rb7 Rg8 Rc7 h8Q Re6 Rc2+ Kd1 Rbb4 Rg6 Rg7 Re6 Ng1 e2 Rcb8 e1N Rc5+ Nc2 Ne2 Re4 Rba4 Rb4 Rb7 Rb6 Raf4 Ra6 Rbb4 Rb6 Rfd4+
2B5/1Q1n4/nR1QRp2/2pnb3/1N1QBB2/qr1N2Q1/Nbp2QK1/1k3R1Q b - - 0 1 illegal: Other
2q2R2/rNkB3Q/NR1n1R1n/1Q1b4/nq3r2/1R1R1N1R/4q1b1/BK2b1QB b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 Kd2 h5 Kc2 a5 g4 e5 b4 c5 f4 e4 b6 h4 g6 a4 g5 h3 d6 a3 b5 a2 d5 c4 f6 c3 f5 e3 f7 h2 b7 e2 g7 e1Q g6 Ra4 b6 Qc7 f6 Re4 Bb5+ Kd8 d7 Ra4 Bb2 Qe3 Na3 Rah4 Rb1 a1Q Nf3 Qc6 Qg1 Nh6 g8B Bb4 f8R+ Qe8 g7 Rd4 f7 Na6 b8Q Bc5 b7 Bd6 Nc4 Bc5 Na5 Qa3 Ba1 Rh7 Rb3 Qb4 Kb1 Rf4 Qe5 Be3 b8N Nc5 Na6 Bf2 Qb8 Be1 Nb7+ Ke7 d8R Na4 Qe5+ Be6 Rb8 Kd7 d6 Bd5 Qeg5 Qe2 Qh5 Ke6 d7 Qc8 d8R Ke7 Bd7 c2+ Ka2 c1N+ Kb1 Nd3 Qf5 Nf2 Qh5 Be6 Qb5 Rh8 Bh7 Ne4 g8Q Nd6 Be4 Bd5 Qh7 Rg8 Na5 Rg5 Rb6 Rg7 Nb7 Ng4 Rg8 Nh6 f8R Rgf7 Rg3 Rg7 Rh3 Rgf7 Qg4 Rg7 Rf1 h1B Qg1 Bg2 Rf6 Bh4 Rd1 Be1 Rdf8 Rf7 Be8 Rg7 Nbc5 Kd8 Rd3 Ra7 Bd7+ Ne8 Nb8 Kc7 Nb7 Bf1 Nd4 Nd6 Bh1 Bfg2 Nf3 Qf1 Bb2 Qf2 Ba1 Qe2 Na6+
kQq1bq2/4B1QQ/2q4q/r3BQn1/3R3R/qBN3b1/Q3Q3/nrNN2KR b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 e5 f4 c5 Kf2 Kc7 d4 Kb7 f6 a5 d6 g5 d5 e4 b6 g4 d7 a4 f5 a3 f7 a2 d6 c4 b5 c3 h6 c2 h7 Qe8 d8Q Na6 h5 Bg7 f8B Qd7 h6 Nb4 f6 Ra6 f7 Nc6 Qe2 Bc3 Bb2 c1Q Nh3 g3+ Kg1 e3 Be7 g2 f8Q Be5 Nc3 Qd1 Nf2 Kb8 b7 Qa4 Qa5 Bg3 Nfd1 Nf6 Rh4 Ne4 Qf5 Nb4 Rc1 Qe8 d7 a1Q d8R Nc2 Rd4 Q1a3 Ra1 Ka7 b8N Bd7 b6+ Ka8 Nc6 Qf8 Ne5 Qc6 Nd3 Be8 Nc1 Ng5 Rb1 Rg8 h8Q Na1 h7 Rg7 Qad5 Ra5 Qa2 Rg6 Qg7 Re6 Qd2 e2 h8Q e1Q Qhh7 Qe3+ Qdf2 Qf4 Bc4 Re1+ Qf1 Qfc7 Bb3 Qc8 b7+ Kb8 Nf2 Qh6 Ncd3 Ne4 Ra4 Qb4 Ne2 Ka7 b8Q+ Ka6 Be5 Rd1 Nc3 Qa3 Rd4 Ng5 Rc1 Rd2 Qe2 Rb2 Rf1 Rb1 Nfd1 Bf4 Kf2 Bg3+ Ke3 Qhc6 Re1 Qh6 Qb5+ Ka7 Reh1 Ka8 Nc1 g1Q+ Nf2 Qg2 Nfd1 Bh2 Qb6 Qe4+ Kf2 Bg3+ Kg1 Qec6 Qb8+
q4r1q/3n1rBb/1kN4Q/3QbN2/2R1NqB1/NBN5/1R3R2/2qNKnQn b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 Kc7 d4 a5 d6+ Kb7 b6 h5 b5 e5 d5 a4 d7 h4 d6 h3 g6 h2 g7 c4 f6 c3 f5 c2 g5 a3 f7 e4 g6 e3 f6 a2 Nh3 e2 Nf2 Rh7 Na3 Qe7 d8Q Ra5 d7 Nc6 Rb1 a1Q Bh6 c1N Rb2 Nd4 Bh3 Ne6 Bg4 Ka8 b7+ Ka7 b8N Kb7 b6 Rc5 Nc6 Na2 Nd4 Nf4 Nf5 Kc6 b7 Nb4 b8N+ Kb7 Qa5 Nd5 Nc6 Qe3 Ncd4 Qf4 Ndb5 Bd6 f8R Ne3 f7 Be5 Nc3 Nf6 g8B Nf1 g7 Rd5 Qa8+ Kb6 d8N Nd7 Nc6 Qa2 Rg1 h1Q Qc1 Rd6 Nfd1 Rf6 Rg2 Ba6 Rf2 Bd3 Rc8 Rh8 f8Q Rf7 Rc7 Qad5 Qad8 Qa5 Qd6 Qa8 Qd5 Qh3 Qh4 Bc2 Qg3 Qh5 Qg1 Bd3 Bh7 Rhf8 g8N Bc2 Bg6 Bb1 Bg7 Qh8 Nf6 Be4 Nh6 Bd3 B6h5 Bh7 Nfe4 Qg5 Rf6+ Ka6 Qa2 Re8 Rb7 Rff8 Bf7 Re7 Rf3 Qe3 Nf5 Qg5 Bd5 Ref7 Rb5 Qh6 Rc5 Kb6 Qc4 Qh2 Qh6 Qf4 Qcd4 Qa5 Bb3 Qa7 Kf2 Qa8 Qd5 e1Q+ Kg2 Qee3 Rc4 Nd3 Rc5 Qc1 Rc4+ Qfe3 Rf4 Nf2 Rf3 Nh1 Rf4 Nfg3 Rff2 Qg5 Kf3 Nf1 Ke2 Qgf4 Ke1
1bb1n2R/N4N1R/1R6/2BK3n/1N1N2qN/B6Q/rQB1p1Qr/2kb1Nrn b - - 0 1 illegal: No possible last move, all moves rejected
1B1Q1nrk/2nNbb1R/b3R2Q/p2q4/4BRN1/2Q3Nq/3r2N1/1n2KBNN b - - 0 1 illegal: No possible last move, all moves rejected
2N2B1K/5kN1/4RnQp/3r4/q1QRr3/2Bq1B1n/B2bqQR1/2rbB1BN b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 a5 Kf3 e5 Kg4 c5 Kh5 a4 b4 c4 f4 a3 g4 e4 d4 h6 Kg6 e3 b6 e2 f6 e1R f7+ Ke7 d6+ Ke6 f5+ Kd7 f6 Ke6 d7 c3 b7 c2 d5+ Kd6 b5 a2 b6 Na6 b8B+ Qc7 d8N Bb7 Be3 c1Q Qe2 Qc3 Rh2 Nc5 Nh3 Ne4 Bg2 Rf1 Na3 Qd2 Nf2 Qb2 Re1 a1Q Nc4+ Kd7 d6 Ra4 Nh1 Ra7 Bg1 Qba2 Bf3 Bc6 b7 Qc8 Ne6 Qc3 Ng7 Be7 f8B Qa6 f7 Rf2 Nb6+ Kd8 d7 Rh7 Bg3 Qaa5 b8B Qc2 Rg2 Rh8 Bbe5 Ba3 Bc3 Rf1 Qc4 Qca6 Nc8 Bb4 Ree2 Qb2 Bge1 Nf2 Re3 Qa4 Re6 Ne7+ Kf6 Nh3 g6 Qe2 g5 Q6b5 Bh2 Ra5 Bg1 Kc7 d8R Qd5 Ba7 Qdd3 Bg1 Re5 Rd4 Re4 Nf5 Rg8 g7 Nd5+ Kg6 Kd7 Kh7 Kd8 g6 Bd7 Bc5 Rf8 g8Q Nf6+ Kh8 Re8 f8Q Ba5 Bh4 Rc1 g7 Re5 Qgf7 Rd5 g8B Bc6 Ng7 Bb5 Bb2 Bd2 Qg6 Bc6 Bc3 Kd7 Re3 Re4 Be1 Bb7 Qff7+ Kd8 Bf8 Ba6 Qc6 Bc4 Qa7 Bb3 Qc4 Bd1 Qaf7 Rg4 Re7 Re4 Re6 Qa6 Rb6 Nd7 Qc5 Rg5 Bg4 Qa4 Qf2 Rf5 Bc4 Rd5 Bf3 Nf6 Ba2 Kd7 Qc4 Kd8 Ne6+ Kd7 Qg4 Ke8 Ng7+ Kf7 Re6 Qc6 Qg5 Qa4 Qg6+
1n1QK2N/1bB3Np/3b1Q2/1RqQ4/3r1qB1/RBN4N/1n4rN/1R1bkNq1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 a5 Kh4 f5 g4 c5 d4 a4 e4 a3 b4 f4 b6 a2 b5 c4 d6 Ke6 d7 c3 d5+ Ke7 d6+ Ke6 b7 f3 b6 c2 Bf4 c1Q Be2 f2 Nh3 f1B Nc3 Na6 b8R Qe8 d8N+ Kd7 g6 Nb4 Kg5 Qb2 b7 Ra7 g7 Na6 Nf7 Ke6 d7 Qb3 d8Q Bd6 Qf6+ Kd7 e6+ Kc6 e7 Kc5 e5 Kb4 e6 Qc6 e8N Bd7 e7 Nh6 g8N Qc5+ Qd5 Qc8 Ng7 Qa3 e8N Qa4 Nh5 Qa5 Neg7 Qf8 Ng3 Bg2 Nf1 Nf5 Ngh6 Rg8 Nh8 Ba4 Rb1+ Bb3 Rg1 Bf3 Rg3 a1Q Be5 Ne3 Bd1 Bc5 Bc7 Nc4 Kf5 Bg2 Ke6 Nb2 Kd7 Bd6 g5 Qc5 Bg4 Bd1 g6 Be4 Qh4 Qf4 Qf6 Rf8 Rd3 Rf7+ Ke8 Rd7 Bh5 Bh1 Ng4 Ra8 Ngh2 Bg2 Rd8 Nb8 Bg4 Ra2 Re3 Nc6 Ra8 Nb8 Ra5 Bh1 Qde5 Kb3 Rb5+ Kc2 Qd5 Bhf3 Ne6 Be4 g7 Bef3 g8B Bh1 Qc6 Be4 Ng7 Bg2 Ng3 Kd2 Bb3 Bh1 Rf3 Ke1 Qd5 Bg2 Ngf1 Bh1 Rc1 Qb1 Qff7 Qg6 Rb1 Qgg5 Qf6 Qg1 Qg8 Q5c5 Qd5 Re7+ Kf8 Ra1 Qdf7 Ra4 Bc2 Nc6 b8Q Qce5 Ne4 Rd4 Ra3 Qc5 Qd8 Nb8 Nc3 Bb7 Qd5 Re2+ Kf7 Rf2 Ke8 Rg2 Bb3
5Nb1/NbR3Qr/nNb5/2k1Nrp1/B2b2R1/q1R4n/3K1BQ1/N1Q1BN1b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 c4 Ke7 a4 d5 h4 g5 e4 f5 a6 b5 a7 b4 e6 b3 e5 b2 c6 d4 c7 d3 c5 f4 c6 f3 h6 f2+ Kd2 Qd6 h5 Qd5 h7 Qd7 a5 Qe8 h6 Bg7 a6 Qh5 Rh4 Nd7 Ne2 Qg4 Ng3 Bb7 c8N+ Ke8 e7 Qh5 c7 Be4 Ra3 Ndf6 Rc3 Kd7 e8N Bg2 Na3 b1B Rg4 Bh1 Ned6 Bb7 Nc2 Bg2 Nf7 Qh3 e6+ Ke8 e7 Kd7 e8N Bf3 Na1 Bh1 Ne5+ Ke6 Ba3 Kd5 Bb4 Nd7 Qc1 Ba2 Ba5 Rb8 a8N Ne7 Na7 Rb5 c8R Ng6 R8c7 Nf4 Nf6+ Kd4 Bb4 Bg8 Nb6 Nc5 Nfd7 Bf6 Be2 f1B Bd1 Bfg2 Ba4 Bb7 Nf8 Ra5 Nf1 Bhc6 Kd1 d2 Kc2 d1B+ Kd2 Rb5 Ba5 Bdb3 Bb4 Bgd5 Ba5 Bh1 Bb4 Rg8 h8Q Rg7 h7 Bg8 Ba5 Rf7 Qg7 Qg3 h8B Re7 Qh6 Rh7 Qg7 Qh3 Nac8 Qg3 a7 Na6 a8Q Qf3 Na7 Qh3 Rc2 Qa3 Bc3+ Kc5 Bd4+ Kd6 Bf2 Nh3 Rc3 Rd5+ Nd3 Bd4 Be1 Rf5 Ne5 Bc8 Bf2 B6d7 Qe4 Bc6 Qg2 B8b7 Be1 Ng1 Neg6 Bf2 Qh6 Nh3 Bd4 Bg1 Qg7 Bf2 Ne5 Bg1 Be3 Bf2 Bf4 Bc5 Be3 Bd4 Nec4+ Kc5 Bg1 Rf4 Bgf2 Rf5 Ne5+
1R1nrNQ1/4R1K1/bb1B1R2/k1nN3N/5Q1n/1q1nR1RB/1Qp1R1bB/r7 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 a5 Kd4 c5+ Ke5 Kc7 f4 Kb6 d4 h5 b4 e6 g4 c4 d6 c3 d5 c2 d7 h4 g6 a4 d6 a3 g5 h3 g7 h2 g6 a2 f6 Ra5 f5 Rh6 f7 Rh7 f6 Ra4 Bf4 Rh8 Qd4+ Kb7 b6 Rh3 b5 Rf3 Nc3 Rc4 Nge2 Qc7 d8R Rc6 Re8 Rc4 Bh3 Rb4 Ng3 Qc6 d7 Be7 f8Q Bc5 d8R Rf1 f7 Qf3 Rd6 Nh6 Kf6 e5 g8R e4 g7 e3 Nh5 e2 Re3 e1N Nd5 Nf5 Qb2 Nd3 Rae1 a1N R1e2 Nc6 Kg6 Rb3 Rf6 Nd8 Bd6 Nh4+ Kh6 Rd1 Rhe1 h1B Bh2 Qg3 Qd6 Rb1 f8N Bg2 Qf4 Rb4 Kh7 Nb3 Kh6 Ra1 Re7+ Ka8 b7+ Ka7 b6+ Ka6 b8B Re4 b7+ Ka5 Bd6 Bb6 b8R Ba6 Re3 Nbc5 R1e2 Rd4 Rh8 Qf3 g8Q Re4 Kg7 Re5 Rhh6 Qg3+ Rhg6 Re6 Rd7 Re8 Rde7 Qf3 Nc7 Qd5 Rgg3 Qb3 Nd5
1b3b1B/2QR1BQp/2NRN3/rQK1B1bB/8/n1N4r/R1k1Bn1n/2qb2B1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 g4 e5 b4 c5 d4 a5 d6 a4 d7 a3 f6 a2 d5 Qa5 d8R Nh6 f5 Be7 g6 Bd7 d6 Bf8 f7 Qa6 g7 Qb6 g8B Ra5 g5 Qc6 b6 Ng4 b7 Be8 g6 Qc7 g7 Qe7 d7 Qf6 b5 Nh2 b6 Qg6 f6 Bd6 f8Q Bc7 f7 Qg3 Qa4 Na6 b8B Qe1 b7 Nb4 Qb5 Nd3 Be3 Nf2 Be2 Bd6 Ba7 Bb8 Bd4 Qc1+ Bc3 Ke3 Nf3 e4 Nd4 Ra3 Kd5 c4 Kc5 Rb3 Bb2 c3 Rd1 c2 Nc6 Ra3 Qe7 Rd3 f8B Bh5 Bf7 Ra3 Bb6 Ra5 Rd5 Rg8 Rd6 Bf3 Nc3 Bg4 Rf6 Kd2 Bh5 e3 Qf7 Bf3 Bd6 Re8 g8B Re6 Bd1 e2 Be5 e1N Be2 Rd6 Qg6 Rd3 Rd6 Bg4 Bd5 Rh3 Qg7 Bf3 Rf8 Bg4 d8N Bf3 Rf7 Bg4 Rb1 a1B Ne6 Bf3 Rfd7 Bg4 Ba3 Bb2 Bb4 Ba3 Ra1 Bf3 Bf1 Bd1 Bfe2 Qb2 Ba7 c1B Ba2+ Kc2 Bb6 Bc7 b8Q Bg5 Qd8 Bb8 Qc7 Qb1 Bac4 Bac1 Bd5 Bcf4 Ba3 Qc1 Bb2 Be7 Ned8 Bf8 Bdf7 Bh6 Ne6 Bg5 Kd5 Nfg4 Bg1 Nf2 Kd4 Nef3+ Kc4 Nd2+ Kc5 Nb1 Bf6 Nhg4 Na4 Nc3 Qg8 Ra6 Bh8 Nh2 Qg7 Nb1 Be5 Ra5 Nc3 Na3 Ra2+
1RKBBQb1/2p5/r4r2/k1R5/Nr2r2n/n1n2Q1B/qR5b/NRNQR1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 a5 Kd4 h5 Kc5 e5+ d6 a4 g4 a3 b4 a2 d4 h4 f4 h3 g6 h2 d5 e4 f6 e3 g7 e2 f7 e1R g5 Ba6 g6 Nc6 b6 Nce7 f5 Qb8 b7 Rh3 f6 Rh7 b5 Re3 b6 Rg3 Nd2 Qc8 b8R Nh6 g8B Nc6 g7 Ra3 b7 Ng4 Nb3 Rh5 Rb1 a1N Ne2 Rh3 Bg5 Re3 Bh3 Re5 Re1 h1R Nec1 Be7 f8Q Nd4 f7 Nac2 Na1 Bf6 Bh7 Be7 g8R Rb3 Bg6 Re4 Qf3 Bf6 Bh4 Bh8 Bd8 Nf5 Bh5 Nge3 Rgg1 Bf1 Bh4 Rh2 Qd1 Rbb4 Qg7 Rb6 Qg2 Bc3 f8Q Qd8 Rc8 Nc4 Bf6 Nb4 Qgf3 Rha2 Bg5 R8a6 Ra8 R6a4 Ra5 Bf6 b8N+ Kc8 d7+ Kb7 d6 Nd5 Na6 Nc3 Be8 Qa8 d8R Nh4 d7 Be5 Rc8 R2a3 d8R Bh2 Rd2 Rab4 Bd8 Rf6 Rdb2 Be2 Rb8+ Ka7 Qfd3 Bg4 Q3e2 Be6 Qf3 Bg8 Rbb5 Qc8 Rb8 Qe6 Rab5 Raa4 Ra5 Na3 Rab5 Bd6+ Kc6 Qa2 Kd7 Bh2 Nc5 Ra5 Na4 Ka6 Nb6 Raa4 Rc5 Ra5 Rc6 Kb5 Kc8 Ra6 Na4+ Ka5 Rc5+
2q1QN2/3qQq2/1K3Q2/RRr2pR1/1NN1RB1B/1rkR1b2/3n2Rb/n2Bq3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 d4 a5 h4 f5 b4 g5 e6+ Kd6 b6 g4 b5 g3 h6 c4 e7 g2 e8Q c3 h5 a4 b7 a3 h7 a2 h6 c2 b6 Nf6 Rh5 Ra7 Nc3 Bg7 Rg5 Nfd7 Nf3 Bf8 Ne5 Ra8 Qe1 Nc6 b8N Ra7 b7 Qf6 Nc4+ Kc7 Bd2 Nb6 Nd7 c1Q b8R Rg8 h8Q Nd8 h7 Bh6 d6+ Kc6 Nd5 Kb5 Nf8+ Bd7 Nb4 Ra6 d5 Qfb2 Qf6 Ra8 h8R Rg7 Rg8 Bc6 d7 Nb7 d8R Na5 d6 Rc7 d7 Qb3+ Kd4 Bf3 e4 Rc5 e5 g1Q+ Qe3 Bg7 Be2 Qge1 e6 Bh6 Rg2 Bf4 e7 Bh2 R8g5 Qcd1 Rb7 Rb8 Qee6 Qdc2 Bd1 Qc1 Bf4 Ka4 Ne5 Nbc4 Rb5 Nd2 Nc4 Qcc2 Qh5 Rb6 e8R Rb7 Qee7 Rb8 Ne3 Qf7 Nc4 Kb3 Nd6 Rc3 Nc4 Rb7 Kc5 Rb6 Rc1 a1Q Ra8 Qee6 d8B Qd7 Ra6 Rb7 Rd6 Rc7+ Kb6 Rc5 Rd4 Rd3 Rb1+ Kc3 Rb2 Re3 Ra2 Nab3 Raa5 Rd3 Qed6 Qab1 Ree4 Na1 Qde7 Qcc1 Ba4 Qe1 Bd1 Qb3 Qhh8 Qc8 Qh5 Qd5 Qhe8 Qdd7 Bg3 Qa2 Bh4 Re3 Bc7 Qb3 Bf4 Qa2 Nb2 Qf7 Nc4 Rd3 Ne3 Kb2 R5g4 Rb3 Nc4+ Kc3 Rg7 Qfd5 R7g5 Qf7 Rd3#
5N1r/2nBb1n1/3RB1p1/5N1B/nQN2KR1/BB3R2/3rQ1qk/qQ3bnB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 c4 Kf5 b4 Kg4 h4 Kg3 c6 a5 c7 d5 c5 f5 c6 a4 b6 a3 b7 a2 e6 Qd6 b5 Qe7 h6 Ra4 h5 Qf6 h7 Qd8 e7 Rf4 e8B Bd7 c8B Rg4 h6 Be6 c7 Nd7 b8Q Qh4 b6 Bd6 b7 Bb4 Bg2 Ba5 Ba3 Nf8 Bf7 Qh3 Nf3 Nd7 Nh4 Qh2 Rf1 Ngf6 Bh1 Nf8 Nd2 Ne8 Nc4 Rd4 Bd7 Bb4 c8B+ Nc7 Qc2 Kh3 Rad1 Qg2 Rf3+ Kh2 Qe4 a1Q Kf4 Be7 e3 Rg8 h8N Rd2 h7 d4 N8g6 d3 h8R Bd5 Rh6 Rh8 Rg1 Bc6 Qe5 Bb5 e4 Ba6 Qb2 Bb5 e5 Nfe6+ Ke3 Ba6 Nf8 f4+ Ke4 Bb5 Rg6 Ba6 Nf5 Bb5 Rf6 Ba6 Bh5 g6 Qb1 Ng7 e6 Bb5 Qa7 Ba6 b8Q Bb5 Qf2 Ba6 Q8b2 Bb5 Ke5 Ba6 Rg3 f3 Qe2 f2 Kf4 f1N Qb4 Bb5 Rg4 Ng3 Rf1 Ba6 Ba4 Bb5 Bb3 Ba6 Qee1 Bb5 Rf3 Ne2+ Ke4 Ng1 Kf4 Rc2 Qe5 d2 Qe2 d1N Bd7 Rd2 Bc8 Bc5 e7 Nc3 e8B Be7 Rd6 Na4 Be6 Ba6 Nb2 Bc4 B8d7 Bb5 Qee4 Bd3 Nc4 Bf1 Qe2
r2rQ2b/R4Bp1/n1Q1Q1qR/1qnbRN2/3n1kBN/3Q4/1Q1QNB1n/K7 b - - 0 1 illegal: Other
4N3/QR5n/1rr1N3/Q1BpK2k/bQ1B1rqN/4Q2p/2QRBnQ1/b3nR2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 g4 h5 b4 e6 f4 h4 c4 h3 c6 a4 g6+ Kf6 b6 a3 c5 a2 g7 Be7 g5+ Kf7 b5 Qd6 f6 Kg6 b7 Bd7 c7 Bf8 c8Q Qc6 f5+ Kf7 b6 Ra7 Qc7 Bd6 g6+ Ke8 f7+ Ke7 f8B+ Kf6 Rh2 Ra6 Nc3 Rh7 Rd2 Kg5 f6 Ra3 f7 Ra6 Bb2 Qb5 c6 Be8 Ne4+ Kh6 Qf3 Nd7 b8Q Bb4 b7 Qb6+ Nc5 Ra8 Be2 Ra6 Qa7 Ngf6 b8R Ne4 Rb7 Nf2 Rf1 Nf6 Ke5 a1R Bd4 R1a4 g8N+ Kg5 g7 Rh6 Bd6 Bc3 f8Q Nh7 Nf6 Qb4 Qa5 Rb6 c7 Ba1 c8Q Rc6 g8Q+ Rg6 Ng4 Kh5 Qe3 Rb6 Nf3 Bc6 Kf4 e5+ Kf5 e4 Ne6 Qc4 Nh4 Rab4 Be7 Ba4 Bec5 Rc6 Qgg7 Rf6+ Ke5 Rbb6 Qd6 Rf3 Qgg8 Rf4 Nf6+ Kh6 Qb3 e3 Qg2 Qb4 Ne8 Qc4 Bf3 e2 Qe3 e1N Bd1 Qe2 Qe7 Qg4 Be2 Kh5 Qcc7 Rf3 Qf8 Bd1 Qff4 Ba4 Qfe4 Rf8 Qc2 Rf6 Qb4 Rf4 Qaa5 Nf6 Qb8 Nh7 Qba7
1N2R3/Q1NrRkp1/5rn1/B5b1/3RB1pQ/q1n1B1RQ/1nK2N2/1RR1bb2 b - - 0 1 illegal: Other
RBN1knb1/pnQ3QQ/1R4p1/3rR3/n3R3/5R1B/N3qbKN/brB4R b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 c5 f4 e5 Kf2 c4 d4 e4 h4 c3 b6 g6 f6 e3+ Kg2 c2 f5 e2 b5 e1B f7+ Ke7 d6+ Kd7 b7 Qf6 d5 Qg7 h6 Qf6 h7 Qe5 h5 Be7 f8Q Na6 b8B Bg3 f6 Qe4+ Nf3 Nb4 h6 Qe6 b6 Qe5 b7 Nc6 f7 Nd4 Ra5 Bg5 Nc3 Qe3 Qg7 Nc6 f8R+ Nge7 Na2 Qc5 Nh2 Bf2 Rf3 Rd8 h8N Qe3 h7 Bf6 Nf7 Ke8 h8Q+ Ng8 Qhh7 Ba1 Qdd4 Nf6 Qb6 Bg4 Qc7 Be6 Ra4 Na5 Re4 Nd7 Re5 Nf8 d7+ Ke7 Re4 Qe2 Re5 Nc4 Re4 Nb2 Re5 Re8 Re4 Na4 d8R+ Nd7 Rc8 Rd8 d6+ Ke8 Re5 Nf8 d7+ Ke7 Bb2 c1N Re4 Nd3 Bc1 Ndc5 Re5 Re8 d8R+ Nfd7 Re4 Rf8 Nd6+ Rf7 Qa5 Nf8 Re8+ Kd7 Qb6 Re7 Rc6 Bg8 Nc8 Rf7 R8e5 Re7 Bd6 Ke8 Qc7 Rb8 Rb6 Re6 Ne7 Rd8 b8R Nb7 Nc8 Re7 Ra8 Re6 Qc2 Rd7 Bb8 Rd5 Rg5 Ree5 Qcc7 Rb5 Rgf5 Rb1 Rh5 Ne6 Rhf5 Rd5 Rfe5 Be3+ Kg3 Bc5 Bh3 Be3 Ne7 Bf2+ Kg2 Nf8 Nc8+
n3K3/1Q1Qb1r1/NQ4R1/2NQ1q2/p3Nknq/1b2qBQp/3B2RB/4rQR1 b - - 0 1 illegal: No possible last move, all moves rejected
k1rQ1BqN/1Nr2B1B/p2R3K/3nR1Qp/4N3/N3NN1n/1rR4q/1Q1b2b1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 e5 f4 c5 g4 Kc7 b4 Kb7 d4 h5 f6 c4 b6 e4 b5 c3 f7 a6 f5 c2 Kf4 e3 f6 e2 g6 e1Q Kg5 Rh7 d6 Rh6 g7 Qb4 d5 Qd4 d7 Bd6 f8R Rh7 Ba3 c1R Nf3 Rc7 Ra2 Nh6 g8Q Rc3 Bc4 Nf5 Rc2 Be5 d6 Ne7 f7 Nbc6 Re8 Rh6 f8N Re6 Ng6 Ra7 Nh8 Bf6+ Kh6 Qf2 g5 Nd4 g6 Re1 g7 Re5 Bf7 Ka8 b7+ Kb8 Re1 Qc7 d8N Qa5 d7 Nd5 Re6 Nb4 Rd6 Rg5 Re5 Kc7 b8N Bb7 Nbc6 Nd5 Nb4 Kb8 b6 Rg2 Qc1 Ba8 Nb7+ Rc8 d8Q Ne2 Qg5 Qb5 Qh7 Qc4 g8B Nef4 Qd3 Qg1 Bh7 Qh2 Qdg6 Nh3 Qe4 Ne7 Nd5 Qa2 Ne3 Nd5 Bc5 Be7 Na3 Qb3 Rc4 Rb2 Qb1 Qa2 Rc2 Qc4 Na5 Rc7 b7 Qg4 Bb4 Ka7 b8N Qgg1 Rg6 Bc5 Rd6 Bb7 Nd7 Ka8 Nf6 Bb6 Qf5 Qg8 Ne4 Bc6 Qff6 Ba4 Qg5 Bb3 Nb7 Bd4 Rc4 Bd1 Rc2 Ba7 Rde6 Bd4 Bf8 Bb6 Rd6 Bc5 Ng4 Bg1 Ne3
1KQR2B1/7p/3N1B1p/k1nB3q/2B2p1Q/b1NB2n1/1bQRR1N1/B1rr1b2 b - - 0 1 illegal: Other
8/b1N2N2/3QBN1r/1bQBN1nB/rp3R1q/3BB3/R3Q1pr/2Nk2K1 b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 d5 cxd5 c5 exf5 c4 d4 Na6 b4 Qd6 bxa5 Nc5 dxc5 Qd8 h4 Kd7 a4 b5 f4 g5 Kf2 e5 h6 g4 f6 e4 c6+ Kd6 f7 Kc5 d6 Kb4 f5 c3 a6 c2 h7 Kb3 a5 b4 a7 Bb7 d7 Be7 f8Q Bc8 f6 Bc5+ Be3 Nh6 f7 Qg5 d8N Qf5+ Nf3 g3+ Kg1 g2 a6 Qg4 h5 Qg7 c7 Qg3 Rh4 Qg7 Bd3 Bb6 Nbd2+ Kb2 Rf4 c1R Qc5 Bb7 c8B Rc4 f8N Qc3 Be6 Ba5 Nd7 Re8 h8Q Rg8 Nfe5 Qc2 Nb3 Bc6 Nc1 Bb5 Nf6 Nf7 h6 Qe2 h7 Bb6 Ra2+ Kc3 Qg7 Ng5 h8N Re8 Nhf7 Rh8 Bg4 Rh5 Ne6 Rh2 Nc7 Rh6 Be6 Rh2 Qd6 Rc6 Qa4 Bd4 Qa5 Bc5 Bf2 e3 Qb6 Rah8 a8B R8h6 a7 Bd4 Qa5 Ra6 Bf3 Bc5 a8B Ba7 Qab6 Ra5 Bh5 Ra4 Ra3+ Kd2 Qbc5 Kd1 Ra2 Qg4 Bae4 e2 Be3 Qf3 B4d5 e1Q+ Bf1 Qh4 Bd3 Nh7 Qg3 Ng5 Qf2 Qfg4 Qb2 Qe2 Qxe2#
1q3N2/6Q1/1b1NRQ2/1nR4B/1pN1RBRQ/b1b3Kp/R1Nqb3/1N4k1 b - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 f5 g4 d5 cxd5 b4 e4 Qd6 exf5 Qd7 a4 Qd8 f6 Ra7 Qf3 Rb7 Qd1 Rb5 axb5 Bd7 Bh3 Be6 Bf1 Bc8 f4 g5 h4 h5 f7+ Kd7 f5 Nc6 f6 Nd4 Ra2 Nf5 gxf5 g4 Ra1 Rh7 Qa4 Rg7 Qd1 Rg5 hxg5 Bh6 Kf2 Bg7 Ke1 Bf8 Kf2 Kd6 d4 c5 a6 e5 b6 c4 g6 e4 a7 e3+ Kg3 c3 a8N e2 b7 c2 b8R Be6 g7 Qe7 Nf3 Nh6 g8R Bc8 Rh4 Bb7 Qe1 Qc7 Ra2 Qa5 Rc8 Qc5 Bf4+ Kd7 d6 c1Q d5 Be7 f8Q Q5c4 f7 Ba6 f6 Qb5 Rc5 Qb8 Qg7 Qd2 f8Q Nf7 Nd4 Bd8 Bh3 Bb6 Nc2 Bb5 Qf2 e1B Bg2 Be2 Be4 Qc1 Bg6 Bc3 Qh2 Bb2 Qh3 Ba3 Qh2 Qe8 Qf2 Qd2 Qe1 Kd8 d7 Nd6 f7 Nb5 Qd6 Qf8 Qc6 Ke7 d8N Qe8 Nb7 Qb8 d6+ Ke6 d7+ Nd6 Kh2 g3+ Kh3 g2 d8R g1B Kg3 Bd4 Qf2 Ba7 Nb6 Bc3 Nc4 Bb6 Qh1 Nb5 Nbd6 Qa7 Rg4 Qb7 Qh4 Qb8 Rc6 Kd5 f8N Qe1 Rdc8 Qd2 Nf5 Ke4 Re6+ Kd3 Rcc6 Qb7 Rc5 Qb8 Qhf6 h4+ Kh2 h3 Bh5 Be5 Q2h4 Ke4 Nfd6+ Kf3 Rh8 Bc3 Rh6 Bc7 Re4 Bb6 Qhg5 Kf2 Qh4+ Kf1 Kg3 Kg1 Qe5 Nd4 Re6 Nb5 Qef6
3Q3r/2K2R1R/2BBqQ1q/R4Rnr/n1NQ1r1k/3bQ2N/6n1/R3Q1bN b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 c4 h4 g6 b6 e6 d6 c3 d7 c2 d5 Nc6 a6 Nb4 h6 Be7 h7 Bc5 b7 Qb6 d8R Qa5 b8Q Ne7 a7 Na6 h5 Qa3 h6 Ng8 d6 Qc3 d7 Nb4 Ba3 c1Q+ Nd2 Bb6 Qe1 Ba6 Bb5 Nc6 Bd6 Q1b2 Nh3 Bc5 Nf1 Qbb3 Ng3 Na5 Qb6 Nb7 Bc6 Bd3 f3 Bf2 Qbe3 Qd2 Rh2 Bg1 Nh1 Rb8 a8N Nc5 Nb6 Na4 Nc4 Rb4 Ra8 Qba2 Ra5 e5+ Kg4 e4 f4 g5 d8Q+ Kf7 f6 Kg6 f7 Nf6+ Kg3 Kh5 f5 g4 Kf4 g3 Ke5 Kh4 f8R Qc1 Rf2 g2 Rf7 Qcd2 Bb8 Rb5+ Kd6 Qc1 Kc7 Rc5 Qf3 e3 Qd4+ Ne4 f6 e2 Qfe3 Rh5 Rff5+ Bf2 Qd8 g1R Qdd4 Rf1 Qd8 Rg8 h8Q Ng5 h7 Re8 Qg7 Rf8 h8Q Rg8 Qhh6 Rh8 Rd7 Qcd2 f7 Qc1 f8R Qb3 Ng3 Bg1 Qgd4+ Rf4 Rh7 Qd2 R8f7 Qba2 Nd6 Qe6 Qhf6 Qc1 Nc4 Qd2 Qb1 e1N Nh1 Ng2 Ba7 Bf1 Bc5 Bd3 Bd6 Qb4 Be5 Qf8 Bd6 Qh6 Qbe1+
Q1R4K/2bBNQ1R/q1R5/B1B2rrq/1B4R1/3bB1b1/QrkNn2R/6n1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 Ke2 Kd7 Ke3 Kd6 Kd4 g5 f4 g4 h4 e6 b6 c6 a6 g3 a7 g2 f6 Bh6 f7 Nd7 f8B+ Ne7 f5 Qc7 b7 Rg8 b8Q Nb6 f6 Bg7 h6 Nc4 h7 Ne5 h8R Bd7 f7 Bh6 h5 Bc8 Nh3 g1R Qc2 Ng6 Qbb3 Rb8 a8Q Bd7 Qca2 Qa5 Nf4 Rb5 Bh3 Nh4 Rh2 R8g2 Rg8 Qa6 Ng6 Bf4 h6 e5+ Ke4 Kc5 h7 Rg5 h8R Rf1 d6 Nf3 Rh7 Nd5 Ne7 Ng1 d3 Bg3 Nd2 Nf4 Qe6 Kb4 d4 Kc3 d5 Be8 d7 c5 d8R c4 d6 Rb2 d7 Nfe2 Rc8 Kc2 d8B c3 Ba5 Bb5 Qed5 Rf6 Bd7 Rff5 Rg6 Bc4 Rgc6 Bb5 Qe6 Bd3+ Kd5 Bf4 Qg6 e4+ Ke6 e3 Qg7 Rc5 Kf6 Bc7 Qg6 Rcf5+ Kg7 Nf4 Kg8 e2 Kh8 e1B Qge6 Nfe2 Qec4 Kd1 Rb1 c2 Qf4 Rb8 Rb4 Bg3 Qf3 Rb6 Rg4 Rb8 Bh6 Rbb5 Ba3 c1Q f8B Rb2 B3b4 Qc5 Qfd5 Kc2 Qf7 Rg7 Be3 Rg6 Bg7 Rgg5 Bgc3 Qd5 Bbc5 Qh1 B3b4 Qf3 Re4 Qh5 Rg4
2q2QQ1/B2rN1NK/1RQ2Q2/Brb4k/bB4q1/6Bb/4R1Bb/2Nbn1Q1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Nc6 d5 Na5 bxa5 Ba6 Kf2 Bb7 Ke1 Bc8 Kf2 f5 Kg3 Kf7 Kh4 Kg6 e4 c5 d4 h5 g4 c4 b6 c3 e6 a3 e7 a2 e8Q+ Kh7 a6 c2 b7 f4 b8B f3 e5 f2 d6 Qa5 a7 Bh6 e6 Qa6 d7 Bg7 d8B Nf6 e7 Bf8 g6+ Kg7 Kg5 h4 d5 h3 d6 h2 d7 Qa4 Bg2 f1B Qf3 Ng8 Bg3 Qb4 Ne2 Qb3 Ba3 Qb8 Bb6 Rh6 d8B Rh4 Nbc3 Nf6 Re1 a1Q Nd5 Rh7 Qc6 Qd1 Nc1 Nh5 Re2 Nf4 Bb4 Bd7 Bdc7 Nd3 e8N+ Kh8 Bg1 Qc8 Ng7 Ne1 Bca5 Bc5 Ne7 Rb8 a8Q Rb5 Kf6 Be8 g5 Qdd7 Be3 Qg4 Rg1 Bd7 Kf7 h1B Qff6 Bd6 Ba7 Bc5 Bd5 Bh3 Bg2 Bf5 Rf1 Be4 Rff2 Bf3 Re6 Bd1 Rfe2 Bg1 Qb8 Bh2 Qbb6 Nd3 Qg1 Ne1 Bf1 Bd5 Bg2 Bb3 Qfd4 Rh5 Ngf5+ Re5 g7+ Kh7 Qcc3 Ba4 Rb6 Re4 Qf6 Rd4 Qcc6 Rd6 Nh4 Qb7 g6+ Kh6 Kg8 Rb5 Nhf5+ Kh5 Kh7 Qa6 g8Q Rd2 g7 Qc8 Qgf8 Rd6 g8Q Rd7 Nb3 c1B Bbd6 Bf4 Nc1 Be3 Bdb4 Bc5 Ng7+
qnn1Q2Q/BB1n2nr/3k1bR1/2R2NNQ/5N2/2R2R2/R1q2q2/KQQn4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 e4 b3 exf5 a6 f6 Nd7 f5 Nb6 f7+ Kd7 f6 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 h3 a5 Ke2 Ra6 Ke1 Rc6 Qa4 Rc3 Qc2 Rf3 Qd1 Rf5 gxf5 Ba6 Qg4 Bb7 Qd1 Bc8 b6 g5 Be2 g4 Bd3 g3 Bf1 Ba6 Nf3 Be2 Ng1 Bg4 hxg4 Bg7 Bd3 Bh6 Bf1 Bf8 b4 c5 d4 h5 Kd2 e5 Kc3 e4 Kb2 e3 g5 c4 g6 h4 d6 e2 d5 e1Q b7 h3 g7 a4 b5 h2 b6 g2 Na3 Na6 b8Q Ne7 g8R Rh5 b7 Bg7 f8R Rh6 Nh3 g1N Nf4 Qh4 Be3 Ne2 Ba7 Qg5 Qc1 Qh4 Bg2 Qe8 Ra2 c3+ Ka1 c2 Nc4 a3 Ne3 Qg6 Rc8 Bh8 Rc5 Qgg5 Rg6 Nc3 f7 Qhg4 f8R Nd1+ f6 Q4h4 Nf5 Rh7 Rfc8 Qgg3 Rf1 h1N Rf3 Qhh2 Qa8 Bg7 b8Q Qf2 Qbb1 Nb8 Rcc3 Ng3 f7 Bf6 f8Q Qh1 Qh6 Nh5 Rc5 Ng7 Qh5 Nc8 Qc6+ Kd8 d7 Qh2 Nd6 Ke7 d8N Qh1 Nde6 Qh2 Qd2 c1N Ng5 Nd3 Qdc1 Ne5 Bh1 Ned7 Nf5+ Kd8 Qe6 Qc2 d6 Qhf2 Rb2 a2 Qg8+ Nf8 Qh8 Ke8 d7+ Kd8 Ng3 Ke7 Bg2 Kd6 d8Q+ Nfd7 Qde8 Qf5 Rfe3 Qd3 Bb7 Qdc2 Rf3 Na6 Bb6 Qa4 Rbc2 Nab8 Re2 Ne3 Kb2 Qa8 Ba7 Nd1+ Ka3 a1Q+ Kb3 Qa6 Ra2 Qd3 Ka3 Qfd4 Kb3 Ne3 Kb2 Nd1+ Ka1 Qf2 Re2 Qe4 Ra2 Qec2 Nf5+
2RN1bqQ/1NNrQ3/3bB2B/6r1/1N2b1n1/2nB1k2/2pQ2q1/R1B1K1BN b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 f4 Kf7 d4 Kf6 h4 c5 h6 g5 h7 e5 a6 g4 a7 e4 h5 e3 d6 c4 d5 e2 b6 g3 h6 c3 d7 g2 b7 c2 d6 Nc6 b8N Nge7 Nc3 Bb7 Nh3 g1B Qd2 Nd4 Nb5 Bg7 Nc6 Qc8 d8N Ba6 d7 Qc7 Nb4 Nec6 Nf2 Nb3 Nb7 Ne5 d8N Qd7 Nc7 Rg8 h8Q Qe6 h7 Bd3 Rh4 Qc4 Nh1 Nc5 Rh3 Rc8 a8B Be4 Rc3 Bh2 Bh3 Na4 Bg4 Re8 Qf8+ Qf7 h8Q Re7 Bh3 Rd7 Qc5 Qg8 Qa7 Ke7 f6+ Kf8 f5 Ng4 f7 Ke7 f8B+ Kf6 Rc4 Ke5 f6 Nc3 Bc5 Bf8 f7+ Kf5 Bg1 Bhd6 Ncd5 Rc5 Nc7 Kg6 Bf1 Rg5 Qae3 Kf5 Bh3 Bd5 Qe7 Be4 Bf1 Nf2 Rc6 Kg4 Bh3+ Kf3 Be6 Bg7 f8B Bh6 Bg7 Ng4 B7d4 Bf8 Bg7 Bh7 Rc4 Be4 Bh6 Nd1 Nca6 Bc7 Na5 Bd6 Rc8 Nc3 Nc7 Bd5 Bc6 Be4 Bb5 Qg6 Nab7 Qg8 Qdd4 Bd5 Kd2 e1Q+ Kd3 Qe5 Kd2 Qh2+ Ke1 Be4 Qd2 Qg2 Bd3
5QQ1/Qn1K4/1Q1B2n1/pR2N1b1/1Qbq4/bR1NB3/4rBBB/R1qk2q1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 f4 h4 f3 hxg5 Na6 g6 Rb8 g7 Rb6 g5 Rf6 g6 Rf5 Rh5 Rg5 Rh1 Rg3 fxg3 Nb8 g4 f2+ Ke2 Qd7 g5 Qd6 Bg2 f1N Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 h5 b6 c5 b7 c4 d6 c3 d5 e6 f6 h4 f7 h3 d7 c2 d6 Kb3 Qd4 h2 Nc3 Nh6 g8R Be7 f8Q Qe8 d8B Qb5+ Nd5 Qb6 g7 Qc7 g6 Bd7 Bg2 Bh4 Nf3 Be7 Nb4 Qc8 Qa7 Bc6 d7 Bc5 Bh4 Bb5 d8Q Na6 b8B Nf5 Nd3 Ne7 Bd6 Qd7 Qdb6 Ba3 Be3 c1B Bhf2 Kc2 b4 Bc4 b5 Nc5 Qf4 Rh3 Rb8 Nb7 g8Q Rh5+ Kf6 e5 g7 e4 Qf8 Ng6 g8Q Re5 Rf1 Re8 Nfe5 h1Q Rb1 Re7 Rb3 Qg1 Qh4 Qg4 Re1 Bd2 Ra1 Re6+ Kf7 Qc1 Qhe7 Kd1 Ke8 Qh4 Kd7 Qh8 Bec5 e3 Qh4 e2 Bce3 e1Q Qe4 Bd5 Qb4 Bc4 Qd4 Qhh1 b6 Qeg1 Qb2 Qh8 Qd4 Nd8 b7 Qh4 Qdb6 Qd4 Rc8 Re8 b8B Nb7 Rc5 Re6 Rb5 Re8 Bf4 Be3 Bh2 Bg5 Bc7 Qe4 Bdc5 Qd4+ B7d6 Re6 Nf3 Re2 Nfe5 Qc3 Bce3 Qb2 Qfg7 Qd4 Q7f8
n2b4/1B1B1rQ1/1R3QqB/3R3R/3KNp2/2QQ4/BN2q1qk/q1rQn2B b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 b6 h5 gxh5 a5 b3 a4 Bg2 a3 Bh3 Bd7 Bf1 Ba4 bxa4 Qf6 Bh3 Qd6 Bf1 Qd8 Kf2 Kd7 Ke3 c5 d4 g5 h4 f5 a5 g4 d6 Ke6 d5+ Kd7 b7 g3 h6 c4 h5 g2 e6+ Ke8 e7 Kd7 a6 c3 h7 a2 a7 c2 h6 Qc8 e8B+ Kd8 d7 Ke7 d6+ Ke6 d8Q Ke5 d7 Nf6 Nf3+ Ke6 Nfd2 Ke5 Ne4 Nh5 Bf7 Ng3 Rh5 Rg8 h8Q+ Bg7 h7 Nh1 Nbd2 Bf6 Qg7 Rf8 h8Q Na6 b8R Qc7 Rb6 Rc8 a8B Nf2 Bb7 g1Q Bg2 Qc4 Bh1 Qg6 Rab1 a1Q R1b5+ Rc5 Qe7+ Qe6 d8Q Nc7 Qd3 Na8 Qed8 Qe8 Ba2 Rf7 Ra5 Nh3 Qc8 Ng5 Qcd8 Qc6 Qdf8 Nf3 Nc4+ Ke6 Rab5 Ne1 Nb2+ Ke5 Bd2 c1Q Ra5 Rb5 Qfa3 Q1c4 Qac3+ Ke6 Bc1 Bd8 Qhf8 Rb4 Rd5 Qb5 Qfh8 Rc4 Qhh6 Rc5 Kd4 Qa6 Bg5 f4 Qhh8 Qb5 Bh6 Qa6 Nd2 Qg2 e4 Qd6 e5 Rc8 Qcb3 Rc1 Ne4 Qb5 Qdc3 Qbe2 Qb5 Qc6 Qbd3 Qd6 Rh2 Kf5 Rh5+ Bg5 e6+ Kg4 e7 Qg6 e8B Bd8 Rhf5 Kh4 Bd7 Kg4 Ng3 Kh3 Ne4+ Kh2 Qhf8 Re7 Qff6 Rf7 Rh5+
r1Q2k2/2R1b3/Q1R2q2/BB4Rb/1N1BK3/1N1Q3b/qnQ3p1/B1Qb1b1B b - - 0 1 legal: proof: d4 b5 g4 e5 f4 c5 fxe5 a5 dxc5 f5 a4 g5 axb5 f4 Qd4 Ra6 Qd1 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Kf2 Rg6 Ke1 Rg5 hxg5 Bd6 Bd2 Be7 Bc1 Bf8 Kf2 h5 b4 d5 c4 g3+ Kf3 d4 e4 a4 c6 d3 g6 a3 b6 d2 b7 h4 b8B h3 e6 h2 e7 a2 b5 Bh6 c5 Rh7 c7 Bg7 e5 Nh6 c6 Bf8 g7 Kf7 e8B+ Ke7 g8R Qd6 f6+ Ke6 f7 Ke7 e6 Rh8 b6 Ba6 c8Q Qd4 c7 Qd8 b7 Ng4 Bfb5 Rh4 Na3 Nh6 Bec6 Qd6 Ke4 Qd7 Nc2 Qd8 Ba7 Ng4 b8B f3 Bd4 f2 Rg5 f1B Nb4 Rh5 Nf3 Bc4 Qc2 d1B Bd2 Ne5 Rc1 Kd6 e7 a1Q e8Q Be7 f8Q Bf1 Qff5 Rh8 Qef7 Qa3 Qfa2 Nc4 Bba7 Rg8 Ba1 Bh3 Nd4 Nb2 Nb3 Bh5 Qab1 Qa2 Bd4 Rh8 Rhd1 h1B+ Qf3 B1g2 Bd5 Bf1 Qfd3 Re8 Qa8 Bfe2 c8Q Qb6 Rf1 Bd1 Rf7 Rd8 Ba4 Bc4 Bb5 Qc6 Qca6 Rf8 Q8b7 Ra8 Qc8 Qb6 Ke3 Qc6 Bh1 Qb6 Ke4 g2 Qdc3 Bf1 Q3d3 Bd8 Rf6+ Ke7 Rc6 Ke8 Bf4 Kf7 Bc7 Be7 Bd8 Kf8 Rc7 Qd6 Rc6 Kf7 Ba5 Qf6 Rc7 Nc4 Qf2 Nb2 R1c6 Bfe2 Qc1 Bf1 Qe6+ Ke8 Qfc2 Kf8 Qec8+
bR1KR1B1/k1Rn1rNB/bn2Q2B/q2N2BR/rp6/Q2p4/q5Q1/R6B b - - 0 1 legal: proof: g4 a5 d4 c5 dxc5 f5 f4 g5 fxg5 f4 e4 e6 b4 f3 bxa5 Qe7 h4 Bg7 h5 Kd8 g6 Ke8 h6 Qg5 hxg7 Qd8 g5 f2+ Ke2 Nc6 Bh3 f1B+ Ke1 Nb8 Bg2 Be2 Bh3 Bg4 Bf1 Bf5 exf5 Qb6 Rh3 Qc7 Rh1 Qd8 Ke2 b5 Kd3 d5 Kd4 Kd7 Ke5 Kc6 a4 Kb7 c4 h5 f6 d4 a6+ Ka7 c6 h4 a5 h3 c5 b4 f7 d3 f8B h2 c7 Rh7 c6 Nf6 g8R Ne8 g7 Qe7 g6 Qd7 Ne2 Rh3 Nbc3 Nf6 Qb3 Bb7 c8Q Rh5+ Bg5 Rh3 c7 Nh5 Nd4 Nf6 Qa3 Nh7 Bg2 Bc6 Nf5 Bb5 Nd5 Qe8 Kd6 e5 Qe6 e4 c8R e3 Kc7 Qf7+ Kd8 Qb7 Rc7 e2 Rh8 e1Q g8B Rh5 g7 Nf6 Bh7 Nfd7 g8B Qe2 Bfh6 Nb6 Ng7 Qa2 Rhe1 Rh3 Bh1 Rf3 Re4 Bd7 Rh4 Bc8 Rh5 Rf1 Bf7 N8d7 Re8 Kb8 Bfg8 Rf7 Rc3 Qc6 a7+ Kb7 Rc5 Qa4 Rc7+ Ka6 Bf3 h1B Bfe4 Kb5 a6 Qa5 Bf3 Rb8 a8Q Rb7 a7 Ka6 Qb8 Bg2 a8R+ Ra7 Bfe4 Bb7 Qc8 Bh1 Rb8 Ra8 Rcc1 Ka7 Qc2 Ba6 Qg2 Qa4 Qg1 Bc4 Qh3 Ka6 Nc3 Bf3 Qe6 Ra7 Beg6 Ba8 Nd5 Bb5 Be4 Bc4 Rc8 Kb7 Qgg4 Ra5 Qg3 Ba6 Rb8+ Ka7 Bh1 Qb5 Qg2 Ra4 Rcc8 Qa5 Rc7+
1r1RnRQ1/1n1N1K1B/5p2/2b5/B2rQp1B/B2NRn2/3RR2r/Bq2Q2k b - - 0 1 illegal: Other
3kR3/R5Nr/pb3nRQ/Np2qR2/3Q4/3B2Q1/RQ1b1QnN/B4bnK b - - 0 1 illegal: No possible last move, all moves rejected
1b1QnQ2/4r1B1/KR2B1BR/1R2R3/3k1nRQ/Np1B1p1N/B1p2r2/b4q2 b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 g4 e5 f4 h5 gxh5 d4 fxe5 d3 cxd3 b4 d4 Ba6 d5 Bb5 axb5 Rh7 Ra4 Rh6 Ra1 Rh8 e4 Kd7 Ke2 f5 Kd3 g5 Kc4 c5 d4 g4 h4 g3 b6 f4 Kb5 c4 a6 c3 a7 g2 h6 c2 d6 Ke6 b7 f3 h5 Qg5 d5+ Kf7 e6+ Kf6 h7 Ke5 h6 Qe3 d7 Nc6 d8R Nf6 b8R Bg7 e7 Nd4+ Ka6 Ne6 e8B Qb3 d6 Qc4+ Rb5+ Qc5 d7 Nf8 Bd3 Ng4 Rh5+ Kd4 e5 Rb8 a8B Rb7 e6 Qc8 e7 Ne5 Beg6 Ng4 e8B Rg8 h8Q Ne3 h7 Nd5 Nh3 g1B Na3 Qc7 Bef7 Bf6 Qe1 Qc5 Re5 Qe7 Qh4+ Nf4 Rb8 Bh2 d8Q+ Nd7 Ba2 b3 Qf8 Rc7 R8b6 Qb4 Rb1 Qe1 Bd5 Qf1 Be6 Bg7 Bd2 Nf6 Bc1 Ne8 Bb2+ Rc3 Rbe1 Bf6 Rg5 Rg7 Rg4 Re7 Ree5 Bg3 Bc1 Rcc7 Qhg8 Rcd7 h8R Bh2 Rh6 Rd5 Reh5 Re5 Rf5 Re2 Rfg5 Be5 Rgh5 Bb8 Rhe5 Bg3 Bd2 Be1 Bb4 Rf2 Qh8 Bc3 Qh8f6 Rd7 Qd8 Ba1 Be7 Bb2 Bf6 Ba1 Qc7 Rf7 Bg7 Re7 Qd8+
2qk3K/8/2QpnNBR/rQ2BqR1/R5rb/Qr3N2/1R2p1Qp/R3B1Q1 b - - 0 1 legal: proof: g4 g5 h4 b5 f4 f5 gxf5 c5 a4 g4 axb5 c4 e4 c3 f6 Na6 e5 Qc7 f5 Kd8 dxc3 Qb8 c4 Nc7 c5 Qb6 Bd3 Ne6 Bf1 Ng5 hxg5 Bb7 Ra4 Bd5 Ra1 Bf7 e6 Kc7 exf7 Qb8 Ra6 Qc8 Ra1 Qd8 Kd2 a5 Kd3 e5 Ke4 h5 b4 g3 c4 a4 b6+ Kc8 g6 a3 b7+ Kc7 b8B+ Kc8 b5 g2 b6 a2 g7 h4 c6 h3 c7 Bc5 f8Q Rh6 f7 Rf6 Nf3 g1Q Bd3 Qf1 Nc3 Re6 f6 Ra7 Kf5 e4 Kg6 e3 Kh7 e2 Bd2 Qg2 Kh8 Nh6 g8R Qg5 Ne4 Bd4 c5 Qf4 Be1 Ra4 Qg7 Rc6 f8Q Qg3 f7 Ng4 Qe8 Rb4 f8Q Rc4 Nf6 Nf2 Bg6 Qg4 Qc1 Kb7 c8R Ne4 Be5 Qf5 Ra8 Ng5 Ra4 Kc8 Rh2 Re6 c6 Bf2 c7 Rg4 Qfa3 d6 Qb5 Bh4 Qce3 Re8 Qg1 Re7 Qh6 Ne6 Qg5 Rg7 Rh1 Rb4 Q5g2 Rb2 Be8 Rg4 Rg5 Qd7 Bg6 Rb1 Nh7 Qc6 b7+ Kd7 b8R Rb3 c8Q+ Ke7 Rd1 a1R Nf6 Qd7 Qcc6 Qc8+ Be8 Kd8 Bg6 Ra2 Rb1 Ra1 Rb2 h2 Rb7 Rd1 Rh7 Rd5 Rh6 Rc5 Q1f2 Rd5 Rf1 Rc5 Qfg1 Rd5 Bb4 Rc5 Ra1 Rd5 Be1 Rc5 Qb8 Ra5 Qbb5
2nq1rRq/2Q2Brp/1Q1prQ2/BB2R3/4N2N/1kQ2pBK/8/3RBn1Q b - - 0 1 legal: proof: d4 e5 f4 b5 a4 c5 dxc5 g5 axb5 f5 g3 Bh6 fxe5 f4 Bd2 Bb7 Be3 Bf3 Bc1 Bg4 h3 f3 Ra4 Be6 Ra5 g4 Ra1 Bf4 gxf4 g3 Ra5 Nc6 Ra1 Bg4 hxg4 Nb8 e4 Kf7 b4 Ke6 c4 a5 b6 g2 Kf2 a4 Kg3 a3 g5 a2 f5+ Kf7 e6+ Ke7 c6 Na6 f6+ Ke8 c7 Kf8 c8Q Rb8 c5 Ne7 g6 Qe8 c6 Nd5 e7+ Kg8 e5 Nc3 e6 Nb5 b7 Qd8 e8B Kf8 e7+ Kg8 g7 Nc3 b5 Ne4+ Kh3 Nd2 b6 Qc7 Bb5 Ne4 Bd2 Nb4 Ne2 g1Q Nbc3 Nc5 Be1 Nc2 Ng3 Qe5 c7 Qe4 Nf5 Qg5 Nh4 Qd4 Ne4 Ra8 b8B Qb2 b7 Ra7 Qd6 Qd4 Rd1 a1R Qb6 Ne3 Ba5 Rb1 Rhe1 Na4 Qd8 Ra6 c8Q Nf1 Bg3 d6 b8Q Ra7 Qc3 Rd7 Q6c7 Nb6 Qba7 Nc8 Qab6 Qgd5 Re3 Qf7 Re2 Qf8 Bh5 Rb2 e8Q Re7 Qg6 Re6 Qh6 Qe8 Re3 Rg2 Qde7 Qd7 Be1 Rg6 Qed8+ Kf7 g8R Qe7 Bg3 Re5 Re2 Ke6 f7 Kd5 f8B Rg7 Bf7+ Re6 Qhc1 Qd7 Qf6 Qd8 Q1a1 Rg6 Bh6 Rg7 Bd2 Qe5 Qce3 Qb2 Bde1+ Qd4 Bc6+ Kc4 Qec1+ Qc3 Bb5+ Kb3 Qce3 Rg5 Qg1 Rg7 Qh1 Qe5 Nf2 Qb2 Re5 Qd4 Ne4 Qc3 Re8 Rf8 Qc1 Qb2 Q1c3+ Ka2 Q3c6 Rfg8 Qg6 Kb3 Rg5 Qe5 Qf5 Rg6 Qc1 Qh8 Qf6 R6g7 Re5 Rf8 Bg6 Rff7 Rg8 Rf8 Bf7 Rg4 Qd2 Rg7 Qdc3+
1QK2N2/2Q1Qp2/2R1n2B/kRrq1q2/N1BR2q1/1Q2R1nr/2p1p3/1N2R1Q1 b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 d5 cxd5 b4 d4 b3 d6 Nd7 e3 Rh7 axb3 Rh6 b4 Nb8 b5 Rh8 d5 e6 Ra5 Be7 Ra6 Bf6 Ra1 Bd4 exd4 Bb7 Bd2 Ba6 Bc1 Bc8 f3 e5 Ra2 e4 Ra6 e3 Ra3 Bf5 Ra1 Be4 fxe4 Qf6 Qc2 Qe7 Qd1 Qd8 Ke2 Kd7 Kd3 g5 Kc4 c5 b4 a5 h4 a4 h6 a3 b6 a2 Kb5 g4 e5 g3 b7 c4 h7 c3 h5 g2 e6+ Ke8 h6 c2 e7 Kd7 e8R Ra7 Ne2 g1Q Nec3 Ra8 Na4 Qgg5 Bc4 e2 Qg1 Qg7 Re3 Nc6 b8Q Qdf8 Kb6 Nf6 Kb7 Ng4 b5 Qfg8 b6 Qe8 Rh4 Rf8 h8R Qg5 h7 Qg7 Rh6 Qe7 Rg8 Qge5 h8N Nb4 Ng6 Rc8 Nf8+ Kd8+ d7 Q5g5 Rc6 Qc5 Rgg6 Qe5 Rgd6 Ke7 d8R Nd3 Rf6 Qe6 Rd7+ Ke8 d6 Ngf2 d5 Ne4 Rg6 Ra5 Rh6 Rd8 Kc7 Nf4 b7 Qf6 Rc3 Qh4 Nb2 Ra4 Qa8 Nd3 Rh5 Nb4 Na3 Rb8 Bh6 Ra7 Re1 Ra6 Nb1 Ra3 Qa4 Qg4 Qb5 Rd8 b8Q Na6+ Kb7 Ra5 Qb3 Nc7 Rd3 Qd4 Rf5 Ne6 Rb6 Ng7 Rc7 Rb5 Rf4 Ra5 d7+ Ke7 Rb4 Kd6 Rff3 Re8 Rg3 Re5 Kc8 Rh5 Rge3 Rh3 Rd2 Qc5 Rd4 Ng3 Rb7 Qc6 Rb6 Kc5 d6 Ne6 d8Q Rb5 d7 Ra5 Qh4 Rb5 Qd3 Kb4 d8Q Qg2 Rcc6 Ka5 Qhe7 Rc5 Bd5 Q2e4 Qdc7 Qgf5 Na4 Qee5 Rf4 a1Q Qb3 Qad4 Bc4 Qed5 Rh4 Qg7 Rd4 Qgg4 Rb5#
2RRqqN1/1BQ1NQ1r/3n2r1/3rR2Q/2Q1b1NK/3nb3/6QB/q2k1RRb b - - 0 1 illegal: No possible last move, all moves rejected
N2N1N2/5qn1/BqRnR2B/2B1b1n1/b2rr3/2Rq1Rb1/B1Q1Q3/B2R1K1k b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 g4 c5 f6 e5 f5 h5 b6 c4 f7 c3 b5 h4 g6 e4 g7 h3 b7 h2 b6 a4 g5 e3 f6 e2 g6 c2 Nh3 a3 Bh6 c1Q Nd2 a2 Ng5 Bg4 Nc4+ Kd7 d6 Kc6 d5+ Kc5 d7 Ra3 d6 Be6 Nh7 Qc2 Rc1 Qb2 Qc2 Na6 b8R Kd4 b7 a1B Nb6 Ne7 g8Q Nc7 g7 Rd3 Rc8 Ke4 b8B Kf3 Na8 Nb5 Rc6 Bb3 Rd1 Qc7 d8R Ba4 d7 Nf5 Re8 Bd6 f8B Rd4 d8N Qf7 Re6 Qb1 Rg1 h1Q Be7 Qh2 Qe8 Qh3 g8B Ng7 Nf8 Bc7 Bc5 Nd6 Rg5 Qb6 Rge5 Kg3 Re3+ Kh2 Rc3 Kh1 Kf2 e1N Ba6 Qg3+ Kf1 Nf3 Ba7 Ng5 Bb8 Nc4 Qe7 Bf4 Be5 Nd6 Qe8 Qe3 Qe7 Bg3 Qe8 Qfb7 f7 Qd3+ Qe2 Qb4 Re7 Ndf5 Rb3 Rd5 Nd7 Nf3 f8R Qb1 Bg5 Q4b6 Qg6 Rh4 Bh6 Ng5 Bed4 Nd6 Rff3 Qc2 Nf8 Q7c7 Qgd3 Re4 Re8 Qc4 Qdc2 Qd3 Be6 Qf7 Ra3 Rg4 Bf6 Re5 Ba2 Rc4 Re6 Ree4 Bfd4 Bc3 Bg1 Bce5 Bgd4 Rb4 Ba1 Rbd4 Rc3
2KQrN1R/5r1n/R5b1/2bn1Qqb/3N2QN/2bB4/4N1QB/RQ1rk1Nb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 f5 Kf4 h5 d4 a5 g4 c5 e4 c4 b4 h4 e6+ Kd6 e5+ Ke7 g6 c3 b6 a4 g7 h3 b7 a3 g5 a2 d6+ Ke8 e7 Kf7 e8R Kg6 e6 c2 Ke5 h2 e7 f4 b5 f3 d5 Kh5 d7 Kg4 Ke6 Kg3 d6 Kf2 g6 Ra7 b6 Nf6 g8N Rh6 g7 Rh4 Nc3 Rh6 Bf4 c1R Bd3 Ra6 Nce2 Rg6 Nh6 Ra5 g8Q Ra8 Nf5 Rg4 Nh4 Nc6 b8N Bg7 b7 Nb4 Nc6 Nbd5 b8Q Nh7 Qb1 Bf8 Ncd4 Rg7 Qf7 Bb7 Qf5 Rf7 Be5 Qa5 d8Q Bc6 Qdc2 Ke1 d7 f2 Qc8 f1B d8Q Bb7 Kd7 Rd1 Q2c6 Qd2 Qcg6 Bh3 Qg2 Bg4 Qc4 Qc1 Bb8 Bc6+ Kc8 Qg5 Qa4 Bh5 Qc4 Bg7 Rh8 Bf8 e8N Bc5 Ng7 Be8 Nge6 Bg6 Nb5 Bh5 Qcg4 Bg6 Nbd4 Bh5 Qb2 Bg6 Nf8 Bh5 Rc1 a1B Qb1 Bc3 Rc2 Rfa7 Rb2 Beg6 Rb6 Re7 Ra6 Re8 Qb2 Ra7 Qb1 Rf7 Nh3+ Kd2 Rf1 h1B Nhg1 Rb7 Bh2 Rf7 Rf3 Ke1 Ra1 Bd6 Re3 Be7 Re6 Bc5 Rea6
N4n2/bN4KN/2n1rN2/1BN4Q/1k1B1b2/3B4/B1QBrqQr/n1n1RR1b b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 g4 a5 f4 a4 b4+ Kb6 d4 c5 f6 a3 f7 e6 f5 h4 f6 a2 g6 c4 g5 h3 g7 h2 d6 c3 d5 c2 d7 Rh6 g6 Qe7 d8B+ Qc7+ d6 Ra4 Nf3 Bb7 Nbd2 Ba8 Ne4 Ra7 Be3+ Kb7 b6 Kc6 b5+ Kd7 b7 c1R b6 Kc6 Nfg5 Qd7 Bd3 Rh5 Nc5 Qe7 d7 Rc2 Rf1 Na6 b8Q h1N b7 Nb4 Bb6 Rh4 Qh5 Rb2 Rae1 a1N Nge4 Re2 Qd8 Rh3 b8Q Nf2 Qbc8+ Rc7 Qe8 Rh2 Qh3 Qd8 Qg2 Ne7 g8B Bh6 f8N Bb7 f7 Bf4+ Kf6 e5 g7 Ng6+ Qe7 Ba8 Nh7 Qf8 d8N+ Kd5 Qf5 Nc6 Qe8 Re7 Bb5 Nd3 Ndb7 Nc1 Qec8 Qd8 f8N+ Re6+ Kf7 Qd6 Nfd7 Nf8 Qh5 Qc7 Ba4 Kc4 Bb5+ Kb4 Nef6 e4 Ba7 Qd6 Nb6 Qd2 Bd4 Re5 Qcf5 e3 Qc2 Nd7 Kg6 Re4 Bb3 Re6 g8B Nf8+ Kg7 Be5 Rd1 Bf4 B3c4 Qe1 Bf7 Qf2 Rde1 Rd2 Rd1 e2 Bd3 e1B Bg8 Rde2 Be3 Re5 Ba2 Re6 Bd4 Bed2 Rde1 Bb8 Nd6 Bb7 Na8 Bf4 Bb6 Ba7 Be3 Bc8 Ndb7 Bd7 Bc7 Be8 Be5 Bg6 B5d4 Be4 Qgg6 Bh1 Qe4 Nd7 Qg2 Nf8 Bd2+
3B3r/R2Qr3/qQ1R4/nR3k2/1bBB2bB/BN1r1r2/3Rbn1K/1n3NNR b - - 0 1 illegal: No possible last move
n5Bb/BN1k1R1K/1Q6/1R3R2/bB1N2Rn/1qQNb3/1nrB1r1n/2R3rB b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 c5 Ke3 a5 Ke4 e5 f4 h5 g4 a4 d4 h4 b4 a3 d6 h3 g6 h2 f6 c4 d5 a2 f7+ Kd7 Kf5 c3 b6 c2 b5 e4 b7 e3 g5 e2 b6 e1N g7 Ra7 Kg6 Ra3 f5 Ra5 f6 Ra8 Nd2 Rh4 Ndf3 Qe7 Bd2 c1B Bg2 Ba3 Rc1 a1R Qb3 Rf4 Kh7 Nc6 b8B Qe8 g6 Rg4 b7 Rd4 Qc3 Nb4 Ne2 Qe6 Nf4 Nbd3 Ba7 Bc5 b8R Nb2 Nd3 Ne7 g8B Rc4 g7 Be3 Nd4 Nf3 Rhf1 h1N Rb5 Ng3 Bh1 Nh4 Rf3 Nf1 Rf5 Kd8 d7 Nh2 Nb4 Kc7 d8N Bd7 Nb7 Nc8 Nd3 Nb6 d6+ Kc8 Ne5 Be7 f8B Rc6 f7 Bf6 Be7 Qb3 f8R+ Be8 Nd3 Kd7 Rf7 Rc7 Bb8 R8a2 Ba7 Na8 Bf8+ Kc8 Be7 Rc4 d7+ Kc7 Rc2 Rg1 Bb4 Rc5 Rc1 Be5 Nf3 Kc6 d8Q Rc4 Qcd4 Rc2 Qa5 Bd7 Qa6+ Kc7 Qab6+ Kc8 Qc3+ Bc6 Rf8+ Kd7 Nd4 Bf6 Bf7 Be5 g8R Bf6 Rg4 Bh8 Rbe5 Bb5 Bg8 Ba4 Rb5 Ra1 Rcf1 Re1 R8f6 Re2 Rc1 Rf2 Rf7+
3bn1b1/K2bq3/N1N5/1bBBB1R1/6Rq/1bnr1NQr/QNB5/B4QNk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 b4 Kg4 e4+ Kg3 c4 f5 c6 a5 b6 d5 c5 h5 c7 a4 e6 f4 b5 a3 e7 h4 e8B f3 g6 f2 c6 h3 e5 a2 g7 h2 b7 Qf6 b6 Bf5 c8N Qd6 c7 Rh6 e6 Bd3 e7 Qd7 Kc5 d4 Nd6 Rh8 c8N Qe6 Na7 Qf6 Bf7 Qf4 e8N Qe5+ Bd5 Bc4 Bd3 f1B Bc2 d3 Nc6 d2 Bb2 Bcd3 Nc7 Ne7 g8Q+ Qg5 Nc4 Rh7 Na6 Bf5 Qf7 Kf2 g4 Qh4 g5 Nd7+ Kb5 Kg3 g6 Rd8 g7 Nf6 g8Q+ Bg7 Ba3 Bd7 Bc5 Ne8 Ka5 Rh6 Nb2 Bb5 Qdf1 d1B Nd2 Rh7 Rb1 Rh6 Ndf3 a1Q+ Ba4 Qa3 b8B+ Rd6 b7 Bb3 Bba7 Rh6 Kb6 Rh8 Bd4 Qb4 b8B+ Qd6 Qh7 Bf6 Qhd3 Rh6 Kb7 Qe5 Bac5 Rh8 Qc1 Kg2 Ka7 Qe6 Bbe5 Rh6 Bc4 Nd5 Qf4 Nc3 Bd5 Qe7 Qd1 B3c4 Bc2 Bb3 Ra1 Rh8 Ra5 Rh5 Qa1 Rh6 Qa2 Bg5 Ne2 Rh7 Rc1 h1B Rg1+ Kh3 Ra4 Ne4 Nh2 Qd6 Qf3+ Qg3 Nc4 Bf5 Ba1 Nc3 Be6 Qf8 Ba3 Rd3 Bad6 Bd8 Nb2 Rh8 Bc4 Bd7 Bc5 Qe7 Qf2 Qf4 Rg5 Bd5 Qe3+ Qg3 Ng1+ Kg2 Qf1+ Kh1 Qef2 Rh5 Nhf3 Bg8 Bd5 Rh3 Rag4 Qh4 Qg3
2qQ4/2RbQN1b/QQ2NQnN/B1bK1Rr1/N2nn3/2k2Bn1/r5q1/5RN1 b - - 0 1 illegal: No possible last move
1rbqr3/b1rn1n2/1N6/2Qn1pkN/bNB5/2R1RR1R/1B1NKN2/1R3Q1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 g4 c5 d6+ Kf7 g6+ Ke6 g5 h5 d5+ Kd7 g7 a4 g6 c4 b6 h4 e6+ Ke8 b5 a3 e7 c3 e5 a2 b7 c2 b6 h3 Nd2 h2 Ke2 Nh6 g8Q Na6 b8R Nf7 g7 Be6 b7 Nb4 Bb2 c1R Bg2 Kd7 e8R Rh4 Rb1 a1N Nh3 Rh8 Rc8 Be7 Rc3 Bf8 Qf1 Nb3 Nf2 Nc6 b8N+ Kc8 d7+ Kc7 d6+ Kb6 Be4 Qe7 d8N Qg5 d7 Bc5 Qf8 Kc7 g8B Nb4 Ndc6 Ba7 d8R Nc5 Rdd3 Nd5 Nb4 Qd8 Rf3 Bc8 Nd7 Rb8 e6 Rc2 e7 Kd6 Nb6 Ke5 Rg1 Kf6 Rgg3 h1B Rh3 Ne3 Bb7 Kg5 Be4 Nd7 Bc6 Nh6 Bc4 Nd5 Qf7 Ne3 Qd5 Nf7 Qc5 Rg8 Rf8 Nd5 e8N Rc1 Ng7 Rh8 Re8 Rg8 Re6 Re8 Ree3 Bg2 Rf4 Be4 Rff3 Bc2 Nh5 Ba4 Ba8 Rg8 Bb5 Qf6 Qd6 Kg6 Rc2 Ne7 Rf4 Re8 Bh1 Nd5 Rff3 Kg5 Rc7 Qd8 Bd3 Rc4 Rc6 Rce4 Rc3 Rc4 Qf8 Rc5 Bc4 Rc7 Qc5
N1R2b2/2nRQ2p/b4B2/1r1n4/1q2B3/N1B1k2N/br1N3R/1NQKBnBr b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Ke7 b4 f5 d4 c5 e4 a5 e6 Kd6 b6 c4 b7 a4 e7 c3 e8N+ Ke7 d6+ Ke6 d7 f4 b5 c2 e5 Kd5 b6 Ke4 e6 f3 d5 a3 e7 a2 g6 Ra4 d6 Bg7 g5 Nf6 Bd3+ Kd4 Be4+ Kc4 Nh3 Na6 b8B Rb4 b7 Bh6 g7 Qa5 g8R Nh5 d8Q Bf5 g6 Ra4+ Bd2 Kd4 g7 c1R d7 Be3 Bc3+ Kc4 Nc7 Be6 e8N Rc2 Qe7 Nf4 d8B Nd5 Rh2 Rb2 Qc1 f2+ Kd1 f1B Ba7 Qb4 b8B Bh6 Na8 Nac7 Bg1 Ra5 Rf8 Rb5 g8N Bd3 Ngf6 Rg8 Rf7 Bf8 Bba7 Rg5 Baf2 Rh5 Bfe1 Rh4 Bg6 Bf1 Ne4 Kd3 N8d6 Rh5 Nc4 Rh6 Nbd2 Rh4 Rb1 a1N Na3 Nb3 Ra1 Rh5 Ndb1 Nd2 Bf5 Bc8 Ra2 Ba6 Rg7 Bg2 Rg8 Nf1 Ned2+ Be4 Rg7 Rb3 Rc2 Rb2 Qh4 Rh6 Bdf6 Rh5 Rd7 Rh6 Rf2 Ke3 Bg6 Bd3 Be4 Bc4 Qg5+ Nf4 Qg7 Nfd5 Qe7 Ba2 Bce5 Ne8 Rc8 Nec7 Bc3 Rh5 Nf4 Rh2 Nh3 Rh1 Rh2+
1nqBN1B1/1N1q1Q2/3rq1bN/Bn3Q2/RQQ5/NQN2Kb1/b1Rp3r/5k2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 f4 d5 g4 e5 c4 h5 b4 a5 c6 a4 b6 h4 b5 a3 f6 Kg6 f5+ Kh7 c5 d4 c7 a2 f7 h3 c6 e4 f6 Kg6 b7 e3 b6 d3+ Kf3 h2 Ne2 Be6 c8Q Ra4 c7 Qe8 Nec3 e2 Na3 e1Q Qb3 Rc4 Bd2 Na6 b8B Qb5 b7 Be7 f8Q Qa4 f7 Rh6 Bg2 Qb1 Rc1 h1B Rc2 Qe1 Qfe8 Nf6 f8Q+ Bf7 Qc6 Re4 Qcc4 Bd6 Ba7 Nb8 Bb6 Be5 Qfe8 Bg3 Qf5+ Kg7 c8N Re6 g6 Nd5 g5 Rh2 Ba5 Nc7 Nd6 Nb5 Bd8 Rf6 Qbb4 Qe6 Qd7 Qa7 Qe7 Qc5 Qe8 Qcc8 Qe7 Kg8 g7 Bg6 Qf7+ Kh7 Ne8 Qed7 Qcb3 Rd6 g8N+ Kh8 Qfc4 Kh7 Nh6 Qe6 Be3 d2 Beb6 Qed7 Ba5 Qe6 Re1 a1Q Re4 Qg1 Rg4 Qd4 Rf4 Na6 b8N Qg7 Nd7 Nb8 Nc5 Qgd7 Nc7 Kg7 Nb7 Kh7 Kg4 Kg7 Bd5 Be4 Ne8+ Kh7 Rc1 Bb1 Kf3 Ba2 Rg4 Qdc7 Rc2 Q7d7 Qff4 Bf7 Qe5 Kg6 Qf5+ Kh5 Rf4 Bg6 Rd4 Qee7 Bg8 Qee6 Qf8 Bd3 g6 Bf5 g7 Bg6 Bf7 Be5 g8Q Bg3 Bdc7 Kg5 Qh7 Kh5 Bg8 Kg5 Qff7 Kh5 Ne4 Kh4 Nc3+ Kh3 Re4 Bf4 Bd8 Bg3 Ke3 Kg2 Qf5 Be5 Qhf7 Bg3 Ke2 Kg1+ Kf3 Rh5 Qc7 Qd5 Qd4+ Kf1 Qdc5 Qe5 Ra4 Qee6 Qcb4 Rh2 Qcc4+
nNR1q3/6B1/2N1Q2R/NNb1r1QB/1RnN2R1/1R3r1p/5k1n/Kb3qQb b - - 0 1 illegal: No possible last move
7q/3B2B1/k2B1bn1/n4rQQ/1qR1K1R1/r2N1Qp1/2qrR1NQ/RR1Q1b2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 f4 Kc7 b4 Kb7 h4 g5 f6 e5 f5 a5 b6 g4 b5 g3 d6 c4+ Ke4 a4 d4 a3 h6 a2 h7 c3 f7 c2 h5 Qf6 h6 Qd8 f6 Bh3 d7 Ra6 d5 Qe7 d8R Nc6 d6 Qc7 d7 Nb8 Na3 Qd6 Nc4 Qe6 Rh2 Ra7 Bf4 c1R Re2 Na6 Ne3 Ne7 Rc8 Rc5 d8Q Nb4 Nf3 Bg7 f8B Nc2 f7 Qb3 Ng2 Qb2 Nfe1 Nd5 Nd3 Qb1 Qg5 Bf6 Bg7 Ra3 f8Q Ne7 Qf7 Rf8 h8Q Nd4 h7 Rd5 Rc4 Qc2 Qfh5 Ndc6 Qf3 Rfd8 Qe8 Na5 h8Q R8d7 Qeh5 Ng6 Q8h7 Bg4 Qh2 Bh3 Qhh5 Rf7 Ke3 e4 Bd6 Nh4 Kf4 e3 Ke4 Rf8 Ra4 Ng6 Rc4 Ka8 b7+ Ka7 b6+ Ka6 b8R Rf5 b7 Rd8 Rb1 a1Q Rbc8 Rd7 b8R Qab2 Ra1 Rd8 Rf2 e2 R8c7 e1Q+ Re2 Qbc3 Rbb1 Q3b2 Rd4 Qb8 Rcc4 Qeb4 Ke3 Rd7 Rg4 Qh8 Ke4 Rc7 Ne3 Rcc5 Bg2 Rcd5 Bh1 Bf1 Bg2 Qba4 Bh3 Qb4 Ng2 Qcb3 Ndf4 Rd2 Nd3 Qc2 Rf4 Rc5 Bd7 Rf5 Rg4
3KB3/B2n2q1/1NQ3B1/2r1n2N/1B2R1rk/R1NQ2p1/b1NQ4/bnNrq1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 g5 e4 c5 h4 f5 d4 a5 b4 c4 b6 c3 e6 Kf6 b5 a4 e7 g4 Kf4 c2 e8Q a3 b7 a2 e5+ Kg7 b6 Kh6 e6 g3 Ke5+ f4 e7 Qc7+ d6 Nf6 d5 Bg7 Be3 c1R Nc3 Ra5 Bd3 Nbd7+ Ke6 Rb5 b8B Rc5 b7 Qd8 Ba7 Rg8 b8N Nb6+ d7 Nc4 d6 Bh8 Bg6 Ne5 Qd2 Nc4 Nge2 Re1 Bg1 Ne5 Nc1 Rd5 Rh2 Rf8 Re2 Rd3 Re4 Kg7 h6+ Kg8 h5 Rd4 h7+ Kg7 Qd3 Kh6 Qd2 Kg5 h6 Bg7 h8N Nf3 h7 Rg8 Kf7 Qb6 d8Q Qa5 Qc6 Kh4 e8B Rc4 Ke7 Rd1 Nd7 Ne5 Nb6 Be6 Qdd7 Bf7 Kd8 Rc5 Qf5 Qb4 d7 Qd4 Re3 f3 Qfd3 f2 Re4+ Neg4 Kc8 f1Q d8N Nd7 Ne6 Qe1 Kd8 Qe5 Nd4 Bd5 Rb1 a1N Nc2 Ba2 Rb3 Qd4 Ra3 Nb3 Nf7 Be5 Ng5 Bh8 Ne6 Qg7 Nf4 Nge5 Qf2 Nd2 Nh5+ Kg5 Qh2 Nb1 Qhe2 Rf8 Qee3+ Rf4 Qed2 Kh4 Nba4 Qh6 Nb6 Bg7 h8B Rg4 Kc7 Bf6 Bg7 Qh8 Bf8 Qg7 Be7 Nc4 Bd6 Bd4 Kd8 Nce5 Nb5 Ba1 Nc3 Ra5 Bb4 Rb5 Bgf7 Rc5 Bg6
2NBnR2/KR1QbBrN/N2b4/2Q5/2n1Qp2/1b3N2/2qR1QkN/Q1nq3r b - - 0 1 illegal: No possible last move, all moves rejected
1Qb1N3/3b2BK/2Bp2n1/B1N1n1r1/1q1rB2B/N1bR1QN1/q2NR1nk/6R1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kf4 a5 c4 h4 g4 h3 b4 h2 f6 Ke6 g6 a4 Kg5 Ke5 f4+ Ke4 f7 a3 g7 e5+ Kg6 a2 c6 d6 f5 Ba6 f6 Qd7 c7 Qe7 c8N Rh3 g5 Rb3 c5 Rg3 b6 Rg4 c6 Bb7 b5 Rg2 c7 Rf2 Ne2 Kf3 Bg2+ Kg4 Na7 e4 c8R e3 Rc3 Qe8 Ng3+ e2 Nd2 Qe5 Rd3 Qf4 Rg1 h1B Be4 Kh3 Kh7 e1N g6 Ba6 b7 Bg2 b6 Ne7 g8N Qg5 g7 Re2 Nb5 Ng6 Na3 Re3 Qf3 Be7 f8B Ne5 f7 Nbd7 b8N Qf4 b7 Ng6 Nf6 Kh2 g8B Bh3 Ne8 Bf6 Bg7 Nde5 f8B Ng2 Be7 Bd7 Bgd5 Ra7 Rb1 a1Q Bc6 Qa2 Rb2 Re1 Rc2 Rd1 Bb2 Qg4 Bc3 Ra8 Ba5 Qf4 Ndc4 Qd2 Rb2 Qb4 Re2 Rd2 Rd5 Rd4 Nd2 Bb5 Bed8 Bc8 Na6 Ba4 b8Q Ra7 Ba8 Bad7 Nc5 Rb7 Be7 Rb5 Bc6 Bg5 Ndb3 Bd2 Bh4 Bc3 Nd2 Rc4 Rd3 Rd4 Nf6 Nc4 Nb7 Rg5 Nc5 Nce5 Ne8
QnB2rB1/2r1rN2/1NqR3R/1b2B2p/Q1RQ4/K3BrbR/1r1n2kB/7R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 Kd2 c5 Kc2 h5 Kb3 e5 g4 a4+ Ka3 c4 b6 e4 b7 c3 g6 c2 b5 e3 b6 e2 g5 e1R f6 Nc6 b8B+ Qc7 b7 Re2 g7 Rh2 f5 Nge7 g8R Na7 g6 Rg2 g7 Rg3+ Nf3 Be6 f7 Nac8 f6 Rg6 Rh3 Rg4 Ng5 Bf5 Ba6 Rh6 Nc3 Ra7 Be3 c1R Rh8 Rc2 g8B Rgg2 Qg4 Rb2 Rah1 Rh7 Qh4 Rg7 Rh6 Nc6 Qg4 Be7 f8Q Nb6 f7+ Bg6 Qfc8 Rgf2 f8R Rf3 Rf4 Bf6 Qh4 Bd3 Qcg4 Bb5 Nf7+ Ke7 Qf2 Be5 Qgh4+ Kd7 d6 Qc8 Bc7 Nb8 Nd5 Kc6 Re4 Qe6 d7 Bg3 d8R Ra8 Be5 Qf6 Nh8 Rc7 Nf7 Qg6 Nf6 Ra7 Nd7 Kd5 Qg2 Qc6 Rg4 Kc4 d5+ Kd3 d6 Ra8 Qg1 Ke2 Rc4 Ra7 Qa1 Ra8 Qa2 Ra7 Qd4 Ra8 R1h2+ Kf1 Rh1+ Kg2 Qb3 Nd5 Qb4 Nc3 Nb6 Ne4 d7 Ra7 Re8 Nd2 d8Q Ra8 Ree6 Re7 Rd6 Rc7 Qb3 Re7 Kb4 a3 Qf8 a2 Ka3 a1R+ Qa2 Nd7 b8B Rc1 Bc7 Rd8 Bc8 Nb8 Qb3 Rde8 Qa4 Rd8 Qe8 Rcc2 Qa8 Rc1 Qd7 Rf8 Q7g4 Rf6 Qd1 Rf3 Qda4 Bf4 Rd7 Bh2 Rc2 Qe6 Bg3 Qc4 Bce5 Qc7 Rdd6 Qc4 Bf2 Bg3 Bg1 Qd5 Bh2 Qe4 Rc4 Rcc2 Rb4 Rcc7 Rc4 Qg6 Rd7 Qc6 Rdd6
R1nK2B1/1N1R1NR1/N5Rn/Q2n4/R1NrrQq1/2b3rQ/6pN/B1n1kb2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 Kf4 h4 a5 b4 g5 d4+ Ke4 f4 e5+ d6 a4 h6 a3 d5 a2 h5 c6 f6 g4 f7 g3 h7 g2 b6 Qg5 f5 Bh6 f8R Qd2 b5 Ke3 d7 Kf2 Kd6 e4 Kc7 e3 d8N c5 b7 c4 d6 e2 d7 e1R f6 c3 f7 c2 b6 Bg5 h6 Bf6 Na3 Re8 Nc4 Qe3 Bb2 c1N Nf3 Qc3 Nh2 Qb3 Qh5 Qh3 Qa5 Nc6 b8N Re3 b7 Ne2 Na6 Nc1 b8Q Nce7 Nb7 Qf5 d8R Nd3 Rd7 Rg3 Kd8 Nb4 Qbc7 Qf3 Qf4 Bc3 Re8 Rb8 f8R Nbd5 Rf7 Ra8 Rg7 Rb8 Rd1 a1N Rd4 Nb3 Ba1 Ke1 Rf8 Qe2 Rf6 Ra8 Rfg6 Nc1 Re4 Nf5 Re8 Nge7 Rg1 Rg8 h8N Qg4 h7 Nh6 Nf7 Rd3 h8Q Rd4 Qh7 Ra7 Rdd6 Bf5 Rd7 Bd3 Rf8 Nc8 Qh8 Nf5 Qh3 Nh6 Ne3 Bb5 Bc4+ Kd2 Ba2 Bf1 Nc4+ Ke1 Ne3 Nde7 Qb4 Bd2 Bb2 Qg3 Ng5 Rc4 Nb8 Bc3 Rc6 Ne2 Kc7 Ra4 Qa5 Nd6 Na6 Kd2 Rh7 Re4 Ra8 Rad4 Be6 Rg6 Rg7 Ndc8 Kd8 Nd5 Bg8 Qf3 Nf7 Rg3 Rcg6 Qg4 Qd6 Nc1 Rh1 Na2 Qf4 Bc4 Ra1 Nc1 Ra4 Bf1 Nc4+ Ke1 Ba1
1br1nN2/1Q1Q1q2/b1N4N/4rQbR/N7/K2pN2R/1R2n2B/2kBrRRb b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 e5 Kb4 d5 c4 h5 f4 a5+ Ka3 e4 g4 d4 b4 h4 c6 a4 g6+ Kf6 c7 e3 b6 e2 c5 e1B g5+ Kg7 c6 h3 b7 h2 Ne2 Rh5 f6+ Kh8 f5 Na6 b8N Bg7 b5 Qd5 f7 Qd8 f8R Be6 c8Q Bg3 b6 Bf4 f6 Bf5 c7 Nc5 b7 Rh4 f7 Bge5 g7+ Kh7 g6+ Kh6 Ng3 Kg5 Nc6 Qf6 b8R Nd3 Nc3 Rh5 Qb7 Bc8 Be2 Qe6 Qd2 Nf6 g8N Ne8 g7 Qd7 Rg1 h1B Bd1 Be3 Qc2 Nf4 Nh6 Ne2 g8R+ Kf4 Rh8 d3 Ngf5 Bd2 Ne3 Qd5 Qcb3 Qc4 Q7b5 Ba6 c8Q Kf3 Rb6 Bb8 Qd7 Re5 Rg3+ Kf2 Rh3 Ke1 Rfg8 Qf4 f8N Qf7 Bb2 Bc1 Rg1+ Kd2 Rf1 Re4 Qbf5 Re5 Kb4 a3 Na4 a2 Ka3 Ba7 Rb1 Rc8 Rb5 Bb8 Rg8 Qc4 Rgg1 Qe6 Rd5 Qf7 Qbb7 a1R+ Kb3 Re6 Be5 Re7 Bh2 Re5 Ng2 Ba3 Rb2+ Kc1 Ne3 Be7 Qf3 Bd8 Qff5 Rb1 Ka3 Bg5 Bc2+ Kd2 Ra5 Re1 Bd1+ Kc1 Nd5 Bf4 Ne3 Re4 Qg4 Re6 Rah5 Bg5 Qf4 Re5 Qff5
kR2Q1n1/7p/nb1NNq2/1bbN4/Q1n1K2B/3Q1Rb1/2RQB1rN/NrQ5 b - - 0 1 illegal: No possible last move, all moves rejected
1R1N4/1q4b1/1rn1b3/R1R1QN1N/3Q2RK/Rr1nN1Nn/4Bnp1/1Bk1q1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 d4 g5 h4 f5 e4 a5 b4 g4 h6 a4 e6+ Kd6 h7 a3 b6 c4 b7 c3 b5 a2 e7 c2 e8N+ Ke7 h5 f4+ Kh4 g3 e5 g2 h6 f3 e6 f2 b6 Qd7 d6+ Kd8 d5 Qa4+ Qd4 Ra6 e7+ Kd7 Na3 Nc6 b8Q Ra5 b7 Rb5 Be2 f1Q Nc4 Qb4 Rh3 Qf3 Be3 c1N Ng7 Rb6 e8B+ Kd8 d7 Ke7 d8R Qa3 Qbe5+ Be6 b8R Nd3 Bg6 Nf2 Nh5 Qb4 Rdc8 Nf6 Bb1 N6e4 d6+ Kd7 Rg3 Bg7 Rg4 Ng5 Ra8 Qf7 Ra3 Qe1 Rb8 Rf8 h8N Ngh3 h7 Rb3 Rb5 Rb8 Ng6 Rb6 h8R Qf3 Rb8 Qe4 Bbd3 Qf3 Rc1 a1N Bb1 Nc2 Ne7 N2b4 Rba5 Nbd3 Nf5 Qd5 Nf3 Qb5 Ng5 Qa6 Ne4 Qb7 Ra7 Nd8 Neg3 Kc6 Qef4 Kb5 d7 Kb4 Qfe5 Nc6 d8N Rc3 R3a5 Kb3 Raa8 Ne4 Bg1 Nef2 Nce3 Kb2 R8a6 Qf1 Rd1 Qe1 Rd2+ Kc1 Ra3 Qf1 R6a5 Rcb3 Rda2 Qe1 Rb2 Rc3 Rbb5 Rb3 Rc5+
B3N1K1/2NR1N2/1rr3Q1/q2bR1q1/Q3pRRR/q7/k2Nq2n/Q1b1B1Nn b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 a5 d4 e5 h4 c5 b4 g5 f4 a4 f6 a3 f5 g4 f7 g3 f6 g2 b6 a2 b5 Na6 b7 Ne7 b8Q+ Qc7 h6 Bh3 b6 Bc8 b7 Bg7 f8R Bg4 h5 Nb4 h7 Ra7 f7 Bh6 Re8 Ra6 f8R Ng6 Bd2 Bg5 h6 Bd8 Be1 Rc6 Rf4 Bh5 Rhh4 Bf6 Qa4 Ra6 Nd2 Rg8 h8Q Rb6 h7 Bg5 Qba8 Rc6 b8N Qa5 Qg7 Nd3 h8N Bf3 Nd7 Nf2 Nf6 Nh1 Rc1 a1Q Nf7+ Kc7 d6+ Kb6 d5 Qb2 Rhg4 Nh4 d7 Qa3 Qh6 Rg6 d8R Qb2 d6 Bd5+ Kd3 Qa2 d7 Nf3 Rcc4 Nh2 Re6 Qb2 Ne8 Qa2 Rcd4 c4+ Ke3 Rf6 Qg6 Kc5 Bd3 c3 Be4 c2 Bf3 Bb3 Ke4 c1Q Re7 Rfe6 Kf5 Qca3 Qa6 Rb6 Ba8 Rec6 Re6 Bh6 Kf6 Bd5 Rb4 Bg5+ Kg7 Qc4 Re7 Qe2 Kg8 Bh6 Rbd4 e4 Re5 Bg5 Rd3 Bh6 Rh3 Bg5 Rhh4 Bh6 Qd1 Kb4 Qa1 Bg5 Rc8 Bh6 d8N Bg5 Rc7 Ka4 Nh3 g1Q Rd7 Qge3 Ne6 Kb4 Nb1+ Kb3 Ng1 Qec5 N6c7 Qcb5 Qd4 Ka2 Nd2 Qbc5 Qa4 Qe7 Rf3 Be3 Rff4 Qg5 Ndf3 Bc1 Nd2 Rb2 Qa7 Rb8 Q7d4 Rbb6 Qa1+
nqb5/1nRQQ2R/1nKQ1Rpn/b1Q4r/5Q2/6rB/1qNBB2k/3NB1B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 a5 Ke4 c5 h4 a4 d4 a3 b4 c4 e6 Kf6 e7 a2 e8Q c3 h6 g6 h5 c2 b6 Ra5 d6 Na6 b7 Bg4 b8R Qc7 d5 Qc6 h7 Rb5 d7 Bg7 d8Q+ Ne7 h6 Rf8 h8B Rg8 h7 Nc7 Qc8 Qb6 d6 Na6 d7 Be6 d8Q Rh5 b5 Qa7 b6 Qd7 b7 Qc7 Nf3 Rf8 Nc3 Rb5 Nd4 Qg3 e3 Kg5 Be2 Nc7 Ra8 f6 b8Q Nf5 Ra6 Na8 Qee7 Rd5 Qcc7 Bc8 Qdd7 Qd6 Rb1 a1Q Rb7 Qb2 Qc5 Qh2 Qd2 Kh4 Nd1 Kh3 Qbc7 Kg2 Qc7c6 Qb8 Rc7 Bh6 Bg7 Rf7 h8B Bg5 Rh7 Nh6 Qdb4 Kh2 Q6b6 Rf5 Qbc4 Rf3 Kd5 f5 Bf6 Bf4 Bh4 Rf6 Be1 Rg3 Qbc6 Bg5 Qce6 f4 Rd6 f3 Kc6 Rf4 Qee5 Bf6 Bcd2 c1N Nc2 Rf5 Qcf4 f2 Q5e6 Bc3 Bd4 f1N Qee5 Rh5 Rf6 Nb3 Qe7d6 Na1 e4 Nb3 Bg1+ Kg2 Qee8 Ne3 e5 Nc4 e6 Ncb6 e7 Bb4 Qed8 Kh1 e8B Kg2 Q7e7 Na5+ Kb5 Kh1 Bd7 Nb7 Kc6 Ba5 Be6 Kg2 Q8d7 Kh1 B6g4 Kg2 Bh3+ Kh1 Bgf2 Kh2 Bg1+
1BB4n/2Q4N/pN1bkBRR/3rb2r/1R4R1/1bnBQ1Q1/3B2bq/qRK5 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 h5 g4 c5 d4 e5 Kd2 e4 g6 c4 f6 h4 g7 a6 f5 h3 d6 h2 b6 Rh4 g5 Rh5 f7 Nh6 g8Q Ra7 b5 Rb7 f6 Ke6 d7 Bd6 f8R+ Kf5 f7 Bc5 g6 Qf6 d8Q Nc6 g7 Rh4 d5 Be7 d6 Ra7 d7 Rb7 Qe1 Ra7 b7 Bd6 b8B Ke5 b6 Ke6 b7 Bf4+ Qe3 Rh5 Qc7 Ne7 d8B Qe5 Na3 Qd6+ Bd3 Nd5 Bf6 Be5 Rb1 Nc3 Nh3 Bd7 Rc8 Ba4 f8R+ Nf7 Rb4 Bb3 Ng5+ Kf5 Rfd8 Nh8 Nh7 Ra8 Rg1 h1B Rg4 Bg2 Re8 Ra7 Re6 Ra8 Bh4 Ra7 Rh6 Ra8 Bf6 Ra7 Qgd8 Ke6 Qg3 Ra8 Qb6 Ra7 Qdc7 Ra8 Rg8 e3+ Ke1 e2 Kd2 Ra7 Qbe3 Ra8 Bb2 e1B+ Kc1 Bf2 Ba1 Bg1 Rgg6 Bh2 Bb2 Nd1 Bc3 Ra7 Bd2 c3 Nc4 c2 Nb6 Nc3 Rgg4 Ra8 Ba7 Rd8 b8R Qd4 Rgg6 Qh4 Rb7 Rd5 Bb8 Rb5 Rd8 Ra5 Rdd4 Rd5 Rdg4 Qh3 Qh4 Bf4 Qhg3 Qh4 Be2 Qh2 g8B+ Kf5 Bf7 Bd6 Be8 Bfe5 Bd3+ Ke6 Bd7+ Kf7 Rb5 Na4 Na8 Nc3 Kb2 Ba4 Rb3 Rd4 R7b4 Rd5 B7b5+ Ke6 Nb6 Rc5 Bc6 Rb5 Bb7 Rd5 Ka3 c1Q+ Rb2 Bd7 Bc8 Qa1+ Kb3 Be4 Kc2 Bg2 Bb7 Bc6 Rb1 Ba4+ Kc1 Bb3 Bc8#
BRK1n1bk/NB1RQ3/5BQN/2bpr2B/4Q3/R1p1r3/1n2qrQ1/B2Q3n b - - 0 1 illegal: No proof kernel
N2R2R1/2N2rRB/1B2qq1N/6b1/B1R2N1b/Nn1Kpb1Q/r2p4/n3kRQ1 b - - 0 1 illegal: No possible last move, all moves rejected
N1kN4/bb1qrr1R/2R3qB/n1RRQ1qQ/6Bn/2N1p3/2pR4/2N1NB1K b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 g4 c5 f4 a5 Kf2 h5 Kg2 e5 b4 h4 b6 a4 f6 a3 g6 e4 d6 a2 g5 c4 d5 c3 g7 c2 f7 Qe7 g6 Ra5 f5 Ba6 f6 Qe8 b7 Nh6 g8B Qe6 g7 Qe8 b5 Ra3 b6 Ng4 Nc3 Kd8 d7 Bb4 f8N Qg6 f7 Bd3 Nge2 Qf6 Ne6+ Ke7 d8N Kd7 f8R Rb3 d6 Ba3 N6f4 Ba6 Nd3 Rh6 Ne1 Rh5 Bh6 e3 Nc1 Nc6 b8Q Bc5 b7 Qg5 Rf2 Ba7 Rd2 h3+ Kg1 Na5 Be6+ Ke8 g8N Ne5+ Bg4 Ng6 Ne7 Nh4 Ned5 Ra3 Rb1 a1Q Rb5 Ra4 Kh2 Rf4 Rc5 Qa4 Qe2 Rf5 Nc7+ Kd7 Kg1 Qg6 Rh2 Qf4 Kh1 Qfg5 Rc6 Qe6 Qd1 Rf7 Rd5 Qef5 Rhd2 h2 Rdc5 Qe6 Qf3 Qg6 Qd5 Rhf5 Qe5 Rg7 Qa8 Rf2 b8R Re7 Rb7 Rff7 Qh5 Qef5 Qb8 Qg5 Rb4 Bc8 Rbd4 Qg6 Rdd5 Ba6 Qb2 Bb7 Qa1 Kc8 d7+ Kb8 Nde6 Qfg5 d8R+ Bc8 R8d7 Bb7 Nd8 Kc8 Ne4 Q5f6 Qae5 Qfg5 Nc3 Nf5 Kg2 Nh4+ Kh3 h1Q+ Kg3 Qf3+ Kh2 Qff4+ Kh1 Qa4 Ned3 Rf3 Rb6 Re6 Rh7 Qd7 Rbc6 Re7 Ne1 Rff7 Na8+
4q3/bk4KN/n1R1N1pB/5QrN/Q1R2qB1/nBR3pB/2Bb2bN/1r2N3 b - - 0 1 illegal: Other
1Br3N1/B1BRN3/Q1p2Q1r/1B6/Q1nb3Q/Qrqb4/1np2Rkq/K2NB3 b - - 0 1 illegal: Other
3NBk2/NBNN3p/n5Rq/r3NBb1/pQ2qrQ1/5RBQ/1Kb1n1q1/1B6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 c5 e4 a5 d4 f5 Kd2 c4 Kc3 f4 g4 f3 g6 f2 e6 a4 e5 Qh4 e7 Ra5 g7 Qf6 b6 Qf7 b7 Qg6 b5 Qe4 g5 Qe1+ Nd2 Ra6 g6 Bd7 b6 Nf6 g8B Bc8 g7 Bg4 d6 Ra5 d5 Ra7 Bh3 f1Q Nf3 Qee2 Kb2 Qef2 Rg1 Bd7 Bf5 Bc6 Ra3 Qh3 Rg6 Qg1 Ne4 Qh6 Nc5 Ra6 Bf4 Qgg5 Bg3 Nbd7 b8N Ba8 b7 Nh5 Nc6 Nf4 Na7 Nb6 b8Q+ Nc8 Qb4 Nh5 Bb1 Bc6 Be6 Nb6 g8B Nd7 Bef5 Ra5 Qd4 Ba8 Qg4 Nb8 Bge6 Na6 Bc8 Nf4 d7+ Kf7 d8Q Ne2 e8N Be7 e6+ Kf8 d6 Be4 d7 Bc2 Ne5 Qhh4 Qh3 Qe4 Bb7 Qh6 Qg4 Bg5 Rf3 Qg7 Qc8 c3+ Ka2 Qh6 d8N Qh1 Nc7 Qg2 Qd7 Rg8 Ka3 Rg7 Qh3 Rf7 Qd1 Bb3 Qdd4 c2 Kb2 c1Q+ Ka1 Qch1 Kb2 Bc2 Qd7 Rg7 Qg4 Qh6 e7+ Kg8 e8B Kf8 Qh3 Rf7 Qdd4 Qd3 Qdg4 Qe4 Bfd7 Rf4 Bdc8 Ng1 Bf5 Ne2 Ncd7#
2qnNR1q/2pN1rb1/R2N1n2/2r3Nn/3BQQQQ/4NQ1B/k2p1K2/3b1B2 b - - 0 1 illegal: No proof kernel
b1Q1n1rB/1qp1KB2/q3BNR1/3Q3p/8/1Br1b1q1/1R2RN1B/1RnN1k1R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 a5 d4+ Kb4 f4 h5 g4 e6 d6 a4 f6 a3 f7 a2 f5 Ra6 d7 Rh7 f6 Ra3 d5 Ra5 g6 Ra6 g7 Qe8 d8B Be7 f8R Nh6 g8B Ra3 g5 Rh3 d6 Qc6 b6 Ba6 g6 Qc5+ Qd5 Bb7 g7 Ba6 d7 Bb7 f7 Bh4 Nc3 Rg3 Bc4 Na6 Re8 Bc6 f8Q Nb8 b7 Rg2 Be3 Rh8 Bf7 Rg8 Nh3 Bg5 Nd1 Rc2 Bb3 Rc3 Bf6 Na6 d8R Nf5 b8N Ba8 Bg1 Be3 Rb1 a1Q Rd6 Qb5 Nd7 Qb7 Nhf2 Nc5 Re7 Qaa7 Qc8 Qaa6 Rc6 Nd6 Re8 Rf8 g8B Kb5 Re7 Ne8 Bh8 Kb4 Nf6 Nd3+ Ke4 e5 Kf5 e4 Ke6 Nc1 Kd7 Rd3 Ree6 Rc3 Ke7 Bd4 Re5 e3 Be6 e2 Bgf7 e1Q Re2 Be3 Bd7 Rc4 Nh7 Qc3 Rg6 Qba7 Bde6 Bh6 Nf6 Rg8 Bc2 Qg3 Ba4 Be3 b3 Ka3 b4 Rc3 b5 Qb8 b6 Qba7 b7 Q7b6 Nb2 Kb4 Rc2 Qc6 b8R+ Qcb5 Qb3+ Kc5 Nbd1 Kd4 Qa2 Qbc6 R8b2 Qcb7 Qc4+ Ke5 Qa2 Kf4 Re2 Kf3 Qb3 Kg2 Qd5+ Kf1 Bc2 Qc4 Bb3 Qca6 Bh2+
5n1Q/n1p2pN1/4BN1Q/1r3RBq/QR2bbn1/KB2q2r/1N3QB1/1k2Q2B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Ke7 e4 a5 d4 h5 Kd2 h4 Kc3 h3 Kb3 a4+ Ka3 h2 b4 Bf5 g6 Qd6 g7 Ra7 e6 Kf6 e5+ Kg6 g5 Qd7 b6 Qe8 b7 Ra8 e7 Bh3 b5 Kf5 e6 Ke4 b6 Ra6 g6 Nf6 g8B Rh5 d6 Qd7 e8B Qc8 e7 Nd5 d7 Qd8 g7 Qc8 d8Q Rh4 Qd6 Nf6 d5 Rh5 Nc3+ Kf5 Nge2 Nc6 b8Q Nh7 b7 Ra7 Qa8 Qe6 b8Q Ng5 Bd7 Rh8 e8B Bg2 Nf4 Nf3 Qb6 Rb7 Nh5 Nb8 Rb1 Be7 Qf2 Bg5 Qde1 Nc6 Rb4 Na7 Nd1 Rb5 Nb2 Bf4 Bc4 Rh7 Rf1 h1Q Bb3 Ne5 Bc8 Rh6 Bc6 Ng6 Bh7 Be4 g8N Qh3 Qf8 Qe3 B8b7 Qe5 d6 Q5c5 d7 Qd5 Ka2 a3 d8Q Ke5 Ng7 Rh3 Bc8 Qd1 Nf6 Qh5 Qh8 Nf8 Bce6 Bd3 Bh1 Be4 Ka1 a2 Qd7 Rb7 Qa4 Rb5 Nc4+ Kd4 Kb2 Kd3 Ka3 a1N Qc6 Qh6 Bhf5 Qh4 Bg4 Qh5 Bgf3 Nc2+ Ka2 Qd4 Bfg2 Ne3 Ka3 Ng4 Qd6 Bh2 Bg5 Bf4 Qb6 Qe3 Qa2 Be5 Rf5 Bf4 Qaf2 Qh4 Qeg1 Qh5 Nb2+ Kc3 Qh4 Kd2 Qgf2+ Kc1 Qd6 Kb1 Qe5 Qh7 Qh6 Qg6 Qc3 Qh5 Qce1+
rRQ3R1/1p6/b2n1bKn/2nR2Q1/1Q1NQp1Q/Nr2k3/1qBq4/B1NR3R b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 g5 Kg4 c5 Kf5 c4 a4 g4 d4 f6 e4 g3 h4 c3 a6 c2 a7 g2 h6 Na6 a5 Bb4 d6 Kc6+ e6 Qe8 d7 Bc3 d8R Nc7 d5+ Kc5 h7 Qe7 e5 Nh6+ Kg6 f5 a6 f4 h5 Bb4 d6 Qh4 e7 Qe1 e8N Bd2 e6 Kd4 d7 Ke3 e7 Qh4 Nd6 Qh3 e8Q+ Kf2 Bb2 c1N Qa4 Nb5 Bd3 Rf8 h8Q Ba5 Bc2 Ng4 h6 Rb8 a8Q Qe3 a7 Qb3 h7 Rf5 Na3 Bc3 Ne2 g1Q Qb4 Nd3 Nc1 Qe1 Qee4 Nc5 Rg8 Qd2 d8R Rd5 Qhe5 Be6 h8Q Rd3 Qg5 Bf6 Nf5 Nh6 Nd4 Bc4 Rd5 Nd6 Rb1 Re3 Ba1 Ba6 Qh7 Rf8 Qc8 Qb2 a8R Rb3 Rb8 Re8 Nce2 Rf8 Rbd1 Rd8 Nc1 Rf8 Qeg2+ Ke3 Qh4 Rd8 Qgg5 Re8 Qe7+ Ne6 Qc6 Rd8 Ra8 Rd7 Raf8 Rd8 Qcc5 Ra8 Rb8 Bg7 Qc8 Bf6 Be4 Nc5 Qee6 Bh8 Bc2+ Be5 Qef5 Bf6 Qe4+
n3NQ2/k5B1/b2b1KQn/R1q5/NNrN4/2p1bNQ1/QRb2pR1/1r2Q2B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 Kc7+ e6 Kb7 b4 h5 e4 h4 d4 f6 g4 c4 b6 a4 g6 h3 b5 h2 d6 a3 d5 a2 d7 Nc6 g5 Ne5 e7 Qc7 e8N Rb8 g7 Rh7 d6 Qc6 g6 Nf3 e5 Rh6 e6 Rh7 d8N+ Ka8 d7 Be7 b7+ Ka7 b6+ Ka6 Bb2 Qd6 Nc6 Qg3 d8Q Bc5 Nc3 Qc7 Nb4+ Ka5 Bg2 Bd6 Na4 Ne5 Nf3 Rh4 Rg1 h1B Qe1 Nd7 e7 Nh6+ Ke6 f5 g8Q f4 Bg7 c3 Qf8 Qc5 Qc7 Qf2 Qc4 Qc5 Nc7 Rg4 e8N Rh4 Nb5 Rg4 Ne5 f3 Nd4 f2 Bc6 Bf3 Rg2 Be4 Nef3 Bc2 Be4 Ra8 b8Q Ba6 b7 Nb6 Qc7 Rb8 Kf6 Rh4 Q7f7 Na8 Qfe6 Rg4 Qe5 Rh4 Qg3 Rg4 Bh8 Rh4 g7 Rg4 g8Q Rh4 Nb2 Kb6 Na4+ Ka7 Q8g6 Rg4 Bg7 Rh4 Rc1 a1B Qa2 Bb2 Ra1 Bc1 Bc6 Be3 Bd5 Rc8 b8R Rh1 Rb5 Rc6 Rb1 Rg1 Ra5 Rf1 Rb2 Rc7 Qd2 Rb1 Bc6 Qd5 Bb7 Rc4 Qe1 Qc5 Nh4 Qd5 Rh2 Qh5 Bh1 Qb5 Nhf3 Qc5 Rg2
3BK3/k7/4brNQ/1rp5/2B2rQ1/N1Rq1n2/rQ1pQ1Rb/1Q1NnNBN b - - 0 1 illegal: No proof kernel
3N1k1n/3BbR1R/p1n5/1BRBrbp1/1n6/RQK1Q3/qn3BN1/rQ1R3B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 b4 f5 h4 d5 e4 f4 c4 d4 c6 a6 h6 f3 b6 d3 c7 f2 b5 Qd4 e6 Qd5 e5 Qc5 h5 Ne7 b7 Ng8 b6 Qe3+ Kc3 Ba3 e7 Qe1+ Qd2 Nd7 b8Q Bc5 h7 Be3 c5 Ndf6 b7 Bf4 h6 Qe3 c6 Qf3 Nh3 Nd7 Ra3 Ngf6 Qe3 d2 Bb5 Bg3 Rd1 f1N Nf4 Nf8 Ng2 Rg8 h8R Ng6 h7 Kf7 e8B+ Kf8 e6 Ne5 e7+ Kg7 Bf7 Qg4 e8B Qf5 Bd7 Be1 Bd5 Nfg4 Bb2 Rd8 Rg8+ Kf6 h8R Ke7 Rh3 Qf7 Rg7 Kf8 Rhh7 Nh6 Qd4 Re8 Kc2 Qf4 Rc1 d1N Bd3 Qf3 Nd2 Bh4 Nc4 Nc3 Nd6 Be1 Bg4 Nd7 Nf7 Re5 Nd8 Qf4 Bgf3 Ra7 Ne3 Na2 Bh1 Nd2 Rd1 Nc4 Ng2 Nf7 Bc3 Qg3 Qe3 Nh8 Ba5 Bc3 Kb3 Bd4 Be1 Bc5 Kc2 Qf3 Bf2 Be7 Bf1 Qe2+ Kb3 Nc1+ Kc3 Qa2 Be2 Nd3 Bf1 N7c5 Be2 Bg4 c8B Na5 c7 Bf5 Bd7 Ra8 c8R Na4+ Kd4 Ra7 Rc5 Ra8 Bb3 Nc6+ Kc4 Nb6+ Kc3 Ra7 Bd5 Nc4 Bf1 Ra8 Qa7 Rb8 Qb6 Ra8 b8Q Ra7 Qb1 Rb7 Qa1 Rb1 Qb3 Ncb2 Be2 Ndb4 Bb5 N2d3 Qab2 Ra1 Qb1 Nb2 Rf7+
2BrB3/1NpR4/nR2B1qR/B3r3/QN2n3/bBb1b1kb/p4R2/N3QR1K b - - 0 1 illegal: No proof kernel
3r2qB/1n3kB1/3bR2K/2Q1nBQQ/N1n1r1Qp/5bRB/Qpp1N1RB/8 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 e5 Ke3 h5 g4 b5 d4 c5 a4 e4 Kf4 e3 a6 h4 d6 c4 g6 b4 g7 c3 g5 b3 a5 e2 a7 e1N d7+ Ke7 d5 c2 d6+ Kf7 a6 b2 g6+ Kf6 Bh3 Qc7 d8Q+ Ne7 g8Q Qb6 g7 Nc6 d7 Rb8 a8B Qb3 a7 Qe6 Ne2 Rb5 Rh2 Rd5 Rg2 Rd2 Ra3 Nb4 Be4 Rh6 a8Q Rd4 Rag3 Rh8 Nbc3 Qa6 Na4 Qa7 Qa5 Na6 d8Q Rd3 Qc5 Rb3 Bd2 Qd7 Bc3+ Qd4 Qgc4 Ra3 g8R Be6 R8g6+ Kf7 Kg5 Qe5 f4 Qc7 f6 Qb8 f5 Nd5 Bd3 Be7 Qg4 Re8 Kh6 Ne3 Qh5 Kf8 f7 Nf3 Bh8 Bd6 Qdg5 Ne5 Qad5 Qc8 Qa2 N3c4 Qdg1 Rc3 Qgd4 Bd5 Qdg4 Rd8 Be4 Qe6 Bd3 Qf6 Be4 Ke7 f8B+ Kf7 Bfg7 Qe6 f6 Re3 Bf5 Re4 Qd2 Ke8 f7+ Ke7 f8B+ Kf7 Qdg5 Qc8 Qa5 Nc5 Qa7+ Nb7 Qc5 Nf3 Be5 Bc6 Bf4 Ne5 Bfg7 Qe6 Rb3 Qe8 Bh2 Qg8 Ra3 Rd4 Rag3 Bf3 Qa5 Rf4 Qc5 Re4 Re6+
1nNb1BR1/2N1r3/Q1p3K1/pQ3Q2/1NRk4/p3bbRN/2q1B1n1/4RrNR b - - 0 1 illegal: Other
1n1Q2B1/1Np1b2K/b2r4/B3N2R/1np5/N1RnqNp1/1RR2N2/k1RrQ1B1 b - - 0 1 illegal: Other
3B1R2/1pQ1QK1B/br1N2pq/1B1nQ1bN/R1NN4/6n1/rpn1Nk2/2B3B1 b - - 0 1 illegal: Other
Bb1b4/B1B2k2/1RBR1n2/1NRr2Q1/p2B4/1pbR1bB1/q1pR4/2KB3N b - - 0 1 illegal: No proof kernel
r1r1rRn1/2R1q3/6b1/qn4Nk/1B1Rb3/R2BB3/BKBb1rB1/B4QNR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 c5 Kd2 f5 Kc2 Kf7 b4 Kg6 g4 h5 e4 a5 e6 h4 b6 c4 b7 c3 d6 h3 d5 h2 b5 f4 e5 a4 e7 f3 e8R f2 b6 a3 e6 a2 d7 Bg7 e7 Rh4 d6 Nf6 Nd2 Ne4 Bd3 f1B Rf8 Be5 e8B+ Kh7 g6+ Kh6 g5+ Kg7 Ndf3 Ra4 Be3 Qe7 d8R Rh7 d7 Bg2 Qf1 Nc6 b8R Rh8 Rb7 Na7 Rc7 Bd6 b7 Nb5 b8B Nf6 Bf7 Ba3 Bd5 Ra8 Bba7 Rg8 Bac5 Bc1 Bb4 Bd2 Kb3 c2 Kb2 c1R B5e4 Rc5 Bc2 Rf5 Bed3 Kh8 g7+ Kh7 Rb7 Kg6 Rc7 Kh5 g6 Rh8 Ng5 Rf2 g8B Be4 Bd5 Ng8 g7 Bg6 Bg2 Bb7 Rfe8 Bbe4 Rf8 Nh6 g8B Rc8 Rd1 a1R Ba2 Ng8 Rf3 Qe8 Rg3 Qe7 Rf8 Re8 Bf7 Raa8 d8B Qe6 Bf6 Qe7 Ba2 Rec8 Kb3 Re8 Ba1 Rac8 N1h3 Ra8 Kb2 Rec8 Rg1 h1Q Rgf3 Qh2 Rh1 Re8 Ng1 Qh4 Rc4 Qc7 Rd4 Qa5 Rc1 Rac8 Bcb1 Ra8 Rc7 Rac8 Bbc2 Ra8 N5h3 Qe7 Ng5+ Kg4 R8f7 Nh6 Bdc4 Red8 Bf4 Rhe8 Rf8 Ng8 Ra3 Rdb8 Be3 Rbc8 N5h3 Kh4 B4d3 Kh5 Ng5+
bB2B3/B1qR1B2/qN1Q2Rk/b1n1Bb2/4rN1K/1b2r3/Nn3B2/2N1N1nB b - - 0 1 illegal: No possible last move, all moves rejected
1KNN3q/3B3N/B1bBB3/1NrRn2Q/1k1N3n/b2qrq2/1R3NBq/N5n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 d4 h5 g4 h4 b4 a4 e6+ Kd6 b6 c4 g6 c3 b5 f6 e7 a3 e8B c2 b7 h3 g5 a2 b6 h2 g7 Rh4+ Bf4+ Ke7 d6+ Ke6 d7 c1N g6 Rh7 d5+ Ke7 d6+ Ke6 Nd2 Ra7 Nh3 Nc6 b8N Nd4 b7 Ndb3 Nf2 Qb6 Bg2 Rh3 Na6 Rd3 b8N Bb7+ Nc6 Qd8 Rb1 a1Q Rb2 Na5 Nb3 Qa3 Na1 Bc8 Ne7 Nh6 g8B+ Nf7 g7 Rb3 e3 Rb8 Qh5 Nb7 Rd1 h1Q Rd5 f5+ Kd4 Qc7 e4 Qf3 e5 Qh2 Bh7 Qd8 g8B Ne2+ Kc4 Ng1 Kb5 Rba8 Kc6 Qd3 Bg3 f4 Bhe4 Rb8 Bf1 Rba8 Beg2 f3 Be2 Nc5 Bf4 Rc7+ Kb6 Bb7 Nc8 Rb8 Ka7 Ne4 Bef1 Rc4 Be2 Ng5 Nc7+ Kf5 e6+ Ne5 e7 Rc5 Nb5 Bc6 Be6+ Kf6 Nd4 Rb3 Nb5 Rbc3 Kb8 Rb3 Nh1 f2 Bg3 f1Q Nf2 Ng5f3 Bf4 Qa5 d8N Qac3 d7 Nh4 Bg3 Qf3 Bc4 Q1d3 Bf4 Ba8 Nc6 Ra3 Ncd4 Bc6 d8N Rb3 Nb6 Ra3 B8d7 Rb3 e8N+ Ke7 Nac2 Nf7 Bgh3 Qde2 Nbc7 Ra5 Ba6 Qee4 Ne2 Qh8 Bg2 Re3 Ned4 Qd3 Nf6 Rb5 Re5 Kd6 Na1 Rd5 Rg5+ Kc5 Nc8 Be7 Ncb5 Kc4 Re2 Ba3 Nh7 Kb4 Bd6+ Rc5 Rd5 Ne5 Rb2+
B5B1/1N1r3R/q3k1qN/B1qbb1r1/3RRp1Q/1r2B2R/K2n1RR1/2BnR3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 d4 a5 Kd2 c5 Kc3 f5 Kb3 g5 e4 g4 h6 g3 b6 c4+ Ka2 f4 b4 a4 h5 a3 h7 g2 e6+ Ke7 b5 c3 b7 c2 b6 Nd7 b8R Bg7 b7 Qe8 h6 Ra7 e5 Nc5 d6+ Kf8 e7+ Kf7 d5 Ne6 d7 Ra4 d8B Nc5 d6 Bf8 e6+ Kf6 d7 Ra6 Qe1 Qg6 e8R+ Kf5 e7 Rd6 Ne2 g1Q Nd2 Qh2 Bg2 Nb3 Nd4+ Kf6 Ne4+ Kf7 Nf5 Rd5 Ned6+ Kf6 Rg1 Rd2 Ba5 Qhh5 d8R Rd1 Qh4+ Ke6 Be4 Rd5 Rg2 Nf6 Rf2 Rg8 h8R Rd1 h7 Nd5 Nh6 Nd2 Ra8 Qe2 b8B Bg7 Ba7 Be5 Nb7 Ne3 Rd4 Qa6 Rb1 Rg7 Reg8 Bd7 e8B Bc6 Rc8 Bd5+ Rcc4 Rg1 Bf3 Nd1 Bf7+ Kd7 Re4 Rg5 Be3 Ke7 Ra1 Kf6 Be6 Rd7 Bf7 Ke7 Rg7 Kf6 Rhg8 Ke7 h8R Kf6 Rgh7 Ke7 Bb2 c1Q Rgg7 Qc3 Bc1 Qb4 Rb1 Qc5 Bg8+ Kf6 Rf7+ Ke6 Rb2 Nf1 Rbe2 Nd2 Re1 Bc6 Rcd4 Bd5+ Ka1 a2 Bg2 Nc3 Kb2 a1R Rfg7+ Qf7 Bh1 Ra3 Bf3 Rb3+ Ka1 Nd1 Ka2 Rf5 Rg3 Rg5 Rh3 Qca7 Rg7 Qc5 Rhh7 Rf5 Rgg1 Rg5 Rgg2 Kf6 Nd6 Ke7 Rb4 Bb7 Rec4 Ba8 Bb7 Kf6 Re4 Qg6 Bc6 Bb7 Rbd4 Ba8 Ba4 Bd5 Bc6 Qab5 Ba8 Qa6 Nhf7 Ke7 Nb7 Ke6 Nh6+
NB4qr/1q1n2Q1/1pB1k3/1KBbn2N/R7/bp3BN1/r3BB2/1RBN1Nb1 b - - 0 1 illegal: Other
B2nRqRB/K2N1B2/2R3rq/7q/n1q3k1/NQRQ4/QR2N1bb/4b2B b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 f4 h4 f3 hxg5 Na6 g6 Rb8 g7 Rb6 g5 Rf6 g6 Rf5 Rh5 Rg5 Rh1 Rg3 fxg3 Nb8 g4 f2+ Ke2 Qd7 g5 Qd6 Bg2 f1N Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Kf2 Kd7 Ke3 e5 b4 h5 d4 c5 d6 c4 f6 Ke6 b6 Kf5 b7 c3 f7 e4 d5 a4 Kd4 h4 Kc5 c2 b5 e3 b6 h3 Ne2 a3 Qd3+ Kg4 Bg2 h2 Bb2 a2 Rc1 h1Q Na3 Nc6 b8Q Bd7 b7 Qh7 Bh1 Qc8 Kb6 Bf5 d7 Be4 d8R Qh2 d6 Qf4 d7 Bf5 Re8 Kh4 d8Q Rh6 Q8d5 Nd8 Ka7 Bd6 f8N Qcc4 Nd7 Ne7 g8B Bh3 g7 Kg4 g6 Qf8 Bf7 Bg2 g8B Bh2 g7 Rg6 Rab1 a1Q Be5 Re6 Rb6 Rg6 Rc6 Qac3 Bf6 Qe5 Bh7 Qf5 g8R Qh5 Qa5 Nd5 Bh8 Nc3 Qa6 Rg7 Be4 Na4 Qa5 Rg6 Qad5 Nb6 Qa8 Na4 b8R Nc5 Rb3 Na4 Rcb1 c1Q Rc3 Qd2 Rb2 Qc1 Qb8 Qd2 Qb3 Qc1 Ng1 e2 Qa2 e1B Ne2 Qf4 Qb5 Q4h6 Qbb3 Bf3 Rd6 Bg2 Ba8 Bf3 Ra6 Bg2 Rc6
3rB2n/2Bn2R1/1N1Q3B/KNR4n/1BN2n1k/1rr2Qnb/5nN1/1BR3Q1 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 h4 g5 f4 Bh6 f5 Qf8 f6 Qg7 Ra4 Qg6 Ra1 Qf5 gxf5 g4 Bg2 Ba6 Bf1 Bg5 hxg5 Bc8 f8B a5 d4 h5 Kd2 c5 Kc3 e5 b4 h4 g6 e4 d6 h3 f7 h2 b6 c4 b7 g3 f6 Ke6 g7 Kf5 d7 e3 d8B Kg5 d5 g2 b5 a4 Kb4 a3 b6 c3 d6 a2 d7 c2 Na3 Rh6 Bc7 Ra7 d8N Be6 Nc4 Bd7 Nf3+ Kh5 Rg1 h1N Bd3 e2 Nh4 Rh7 Bh6 c1N Bb1 Ra3 Nc6 Rb3+ Ka5 Bf5 Bb4 Nd7 b8N Bh3 f8Q Rh8 f7 Nd3 b7 Ne7 g8B Ng6 Qd6 Ndf4 f8Q Nf2 Bf7 Rg8 Qc1 e1N Be8 Ned3 Nd4 Kg4 Qf7 Nh8 Nb5 Nh5 Qfd5 Ndf4 Qdd1+ Kg3 Qf3+ Kh2 Qce3 Rg3 Rc1 g1N Ng2 Nge2 Rc2 Rg8 Qec5 Neg3 Qg5 Nc5 Nd7 Rc3 Ndb6 Nd7 b8R Rf8 Bg6 Rd8 Be8 Rb3 Rc8 Rc3 Rc1 Rb3 Bd3 Rc3 Rab1 Rb3 Rb2 a1R+ Ra2 Rc3 Bb1 Rb3 Ra4 Raa3 Qg7 Rc3 Qgd4 Rab3 Qdd1 Bf5 Qg1+ Kh3 Ra2 Be6 Re2 Bf5 Re7 Bg4 Rg7 Bf5 Bb8 Be6 Rc5 Bf5 Nge3 Kh4 Bc7 Bh3 Ng2+
2kQ4/q1B3KR/3RRrbN/2Q5/1q3r1q/RBQ1R2r/2Nrq1N1/B2n2Q1 b - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 d4 h4 d3 f4 g4 f6 Bh6 cxd3 Bg5 hxg5 Nc6 d4 Kf7 d5 Nd4 Nh3 Nf5 exf5 Kf8 Ng1 Ke8 Ke2 Kd7 Ke3 h5 Ke4 a5 Ke5 c5 d4 e6 b4 h4 d6 c4 g6 h3 f7 a4 f8R g3 b6 c3 f6 c2 d5 g2 b5 h2 b7 a3 b8R a2 b6 Rh6 f7 Nf6 g7 Rh3 g8N Ba6 f5 Ra7 b7 Rh7 Re8 Bb5 f8Q Qc7 Bc4 Ba6 Na3 Bb5 Nf3 g1Q Nh6 Ng8 f6 Qgc5 f7 Ra5 Nh4 Qb4 Ng2 Bc6 Qg7 Nf6 Bb3 Ra6 Qg1 Ne4 Bb2 c1R Nc2 Nc3 Kf6 e5 Re6 e4 Rbe8 e3 b8B Qa7 Bc7 e2 Kg6 Nd1 Qc3 e1R f8Q Rf1 Qf5 Rh8 Kg7 Rf4 R8e7+ Kc8 d7+ Kb7 d8R Be8 d6 Bg6 Rdd7 Kc8 Qfc5 Rb6 Re3 Qa6 R7e6 Qe2 Ng8 Rh3 Nh6 Rc6 Rd8+ Kb7 d7 Ra6 Rb1 a1Q Ra8 Rc6 d8Q Qa7 Ba1 Rd6 Rb2 Rd2 Qde7 Rb1 Rd8 Rc1 Rdd6 Kc8 Ra2 Rf6 Qe1 Rf4 Ra3 Rf6 Rf1 h1Q Qf2 Qh2 Qg1 Qg3 Rf5 Qgh4 Rh5 Rb1 Nf7 Rb2 Rh7 Rd4 Nh6 Rdf4 Nce1 Rd2 Nc2 Rhf3 Q3d4 Rg3 Qdc3 Rh3 Qd8+
3R2bR/1NkNR1R1/B2Q4/3R3K/B1b2Q2/rbQ2nb1/r1r5/rBBN3b b - - 0 1 illegal: No possible last move, all moves rejected
Q2BnR2/n1rQ1r1Q/Rr4N1/4RBbK/1n3R2/3rRN2/1rN2Bk1/3n3N b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nc6 f6 Rb8 f7+ Kd7 axb3 Ra8 b4 Nb8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 f5 g5 b6 Ba6 h3 Bd3 f6 Bf5 gxf5 g4 Bc4 g3 Be2 Qc8 Bf1 Qa6 Nf3 Qc4 Ng1 Qg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 Ke2 Kd6 Kf3 Ke5 b4 h5 d4+ Kd6 g5 c5 b5 e5 b7 a5 g6 g2 b6 h4 Kg4 e4 g7 a4 Nc3 h3 Nce2 e3 Nf3 g1R+ Ng3 a3 Bd3 e2 Be3 e1N Bf2 Be7 f8N a2 f7 c4 f6 h2 Bf5 c3 Ng6 c2 f8R c1R f7 Nh6+ Kh5 Ra3 g8Q Rd3 Qh7 Nc6 b8N Nc2 b7 Ng8 Na6 Rg2 b8R N2b4 Rbe8 Bg5 Re5 Na7 Rhe1 h1N R1e3 Rc7 Qa4 Rg1 Qe8 Rf1 Qa8 Rb1 Rc8 Rb2 f8R Rf7 Rf1 a1R Rb8 Rab1 Rb6+ Nbc6 Nb4 Rc1 Ra6 Rc5 Be1 Nf2 Nh1 Nd1 Nc2 Rb6 Bf2 Nb4 Rg1 Rcc7 Rg4 Be7 Rf4 Nf6+ Kh4 Ne8+ Kh5 Rb7 Re1 Bg5 R1e3 Kc7 d6+ Kc6 d7 Kd6 d8B Rbc7 d5 Rg8 Qg7 Rh8+ Kg4 Rh2 Qh7 Rg2+ Kh5 Kc5 Be4 Kc4 d6 Kc3 Nfh4 Kd2 d7 Rh2 Rg3 Ke2 Re3+ Kf1 Bf5 Rg2 Nf3 Rh2+ Bh4 Re2 Bf2 Kg2 Bf6 Rb8 d8Q Rb6 Qd7 Red2 Bd8 Re2 Na3 Rb2 Nc2
1Q6/kn4R1/rn3n2/3QR2R/3NB2B/1qN3rN/1BQRN1n1/2qnn1NK b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 b4 Kd7 d4 Kc8 d6 Kb7 b6 e5 d7 a5 b5 h5 d5 c5 d6 g2 Kf2 e4 g5 h4 f7 a4 f8B c4 f6 h3 g6 h2 f7 a3 g7 c3 f5 c2 f6 a2 Nf3 g1N Kg2 e3 Be7 e2 f8N e1Q f7 Ra4 Bb2 c1N Ng6 Nh6 g8R Qa5 f8N Rc4 Rg7 Nb3 Nh7 Ng4 Bd3 Rc1 Nc3 Qf8 d8Q Qg8 d7 Nh3 Qc2 Nc5 Nf4 Qb3 Nhg5 Rh6 Bh7 Rd1 Ng1 Rd3 Re1 Qaa4 Re5 Rg3+ Kf1 Qa6 Nfe2 Nf4 Be4+ Rc6 Qg8 Qa8 d8R Nbd7 Qc1 a1N Qc4 Nf8 Rd2 Nfd7 Qd5 Nc2 Bd8 Kb8 b7 Ne1 Qc2 Qa1 Bf6 Ka7 b8N Qc1 b6+ Ka8 b7+ Ka7 Be7 Ra6 Nc6+ Kb6 b8Q+ Nb7 N1f3 Nfg2 Ncd4 N4e3+ Kf2 Nc4 Rf1 h1N+ Kg1 Nf2 Kh2 Nh3 Rh1 Nf2 Kg1 Nd1 Rh5 Qa2 Nh3 Qb3 Bh4 Nf6 Qbg8 Ka7 Kh1 Nb6 Nfg1 Nd3 Qgd8 Nde1 Qb8+
kqN3R1/4pB2/1NN2r2/b1QBqnRN/1NRBQqb1/1B2n2r/8/2K3Q1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 g4 Kd7 d4 h5 Kd2 c5 f4 Kc7 a6 h4 f6 c4 b6+ Kd6 f7 h3 g6 h2 f5 Bd7 f6 Rh4 g5 Rf4 b7 Kc7 d6+ Kb6 a7 Bc8 g7 Nh6 g8R Nf5 d7 Nh4 g6 Rf2+ Ne2 Kc7 d5 Ng2 g7 Qe8 d8N Nc6 b8N Ne5 d6+ Kb6 d7 Ba6 Nbc6 Rf3 Nb4 Bb7 Ng3 Ng6 Rg1 h1Q Na3 Qh7 Nb5 Bc6 Bb2 c3+ Kc1 c2 Ra4 Qh4 Nh5 Ne3 Rg5 Rf2 Bc4 Bh1 Ndc6 Kb7 d8Q Bg2 Qa5 Rf1 Bd4 Rf4 Qg1 Bh3 Bb3 Rc8 Qc7+ Ka8 Nd6 Bg4 Qa5 Qg3 Qc5 Rc7 Nc8 Nh4 Nd5 Nhg2 Rc4 Nh4 Ndb4 Rf2 Rh8 Rf5 g8B Bh6 f8N Qe5 f7 Rf6 Nd7 Nhf5 f8Q Rb7 Bf7 Qd8 Nd6 Qb8 Rhg8 Rb6 Qc8 Ra6 Qc7 Ra3 Nc8 Bg7 Q7d6 Bh6 Qdd5 Bg7 Kd2 Bh6 Qe4 c1Q+ Kd3 Qf1+ Kd2 Qff4 Kc1 Ra2 R5g7 Rh2 Rg6 Bg5 R6g7 Bh4 Rg5 Be1 Ndb6+ Kb7 Nc2 Ba5 N2b4 Rh3 a8B+ Kc7 Bb7 Qa8 Nd8+ Kb8 Bbd5 Qb7 Na4 Ka8 Ndc6 Qbb8 Nab6+
q1N3n1/B2rn3/Qn2R3/3BR3/kN4NR/Nr1b1bB1/3Q3p/R2NKnQ1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Be3 Ra2 Bb6 Ra1 Ba5 bxa5 Kd7 Ra2 Ke7 Ra1 Ke8 e4 Kd7 d4 c5 g4 f5 d6 h5 e6+ Ke8 a6 f4 g6 a3 g7 f3 e7 Kd7 e8R c4 d5 h4 g5 h3 a7 a2 e5 c3 b6 c2 b7 Nc6 b8B Qb6 g6 Qb5 Be3 c1N Bg2 Qb2 Re6 Rh5 Na3 Qd4 Ne2 Rf5 Nc3 Nge7 g8N Qc4 g7 Ne2 Nh6 Rf7 g8N Qa4 Ng4 Bb7 Bc7 Rb8 a8Q Qa6 Ba7 Ng3 Qb1 Qa4 Nd1 Nf1 Qb6 Rh7 Qg1 f2+ Ke2 Nc8 Ne7 Nb6 Nc8 Ne7 Rh2 Bc6 Qb7 Ng8 Qa6 Ng3+ Kd2 f1B Ke1 Nf5 Be4 Bd3 Bg2 Nfe7 Be4 Ke8 d7+ Kf8 d8N Ke8 d6 Kd7 Bg2 Bf3 Nc6 Rf7 Nb4 Rb7 Rb1 a1N Bh1 Nb3 Ra1 Nd2 Bg2 Bfe2 Bd5 Nf1 Rh1 Bf3 Bcb8 Ke8 d7+ Kd8 Rg6 Rg7 e6 Rh7 Rh6 h2 Rh4 Rg7 Bg3 Rf7 Ra2 Qc6 Re2 Rg7 Re5 Kc7 d8R Rh7 Rf8 Rb8 Rf6 Qa8 Rfh6 Nc6 Rg6 Rd7 e7 Rb7 e8Q Nce7 Rge6 Rb8 Qa5 Rb7 Qg6 Rb8 Nc6 Kb7 Qb4 Ka6 Qd2 Rbb7 Nb4+ Ka5 Qe4 Ka4 Qed4 Rbc7 Qa1 Rc3 Qaa2 Nc6 Qc4 Rb3 Qa6+ Na5 Qge3 Bb1 Kf2 Bd3 Qc5 Ne3 Rf1 Nf5 Nde3 Nfe7 Ra1 Nf6 Nd1 Nfg8 Qb7 Nac4 Ke1 Ne3 Qd4 Nf1 Q4f2 Bg2 Qg1 Bf3 Qa6+
2Q2B1B/5k2/RQNnqQ2/pnr2B2/K2nb3/b1Q2r2/R5R1/N1BQ1n1N b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 f5 exf5 d5 c4 h5 cxd5 h4 a4 h3 axb5 Qc7 gxh3 Nc6 h4 Nb8 h5 Qd8 Bh3 e5 f4 a5 d4 g5 Kd2 g4 Kc2 g3 Kb3 e4 c6 g2 c7 e3 d6 e2 h6 e1N b6 Nc2 d5 Bd7 h7 Be7 b7 Nh6 f6 Ng8 f5 Qc8 f7+ Kf8 Nd2 Be6 d7 Kg7 d8Q Qd7 f8R Bc5 f6+ Kg6 f7 Be3 Ne2 g1N Ng3 Bf4 Ra2 Nf3 Rg1 Ne5 Nh1+ Ng4 Rg2 Nc6 b8N Ne3 Ka4 Ra7 c8Q Bf5 d6 Nd5 Nb3 Nge7 Na1 Nc7 Re8 Rf8 h8Q Ra6 Qc3 Nb5 Qdc7 Be4 Q7d8 Qc7 d7 Nf5 Qh4 Bg3 d8Q Qe5 Re6+ Qf6 Qh8 Ncd4 Qh4 Ra7 Ra6 Nge3 Qb6 Qe6 Qf4 Rd7 Nc6 Rd5 Bg4 Kg7 h4 Nf1 h5 Bh2 Qff3 Bd6 h6+ Kg6 h7 Ba3 h8B Rc5 Qf2 Nfd6 Qh4 Rg8 f8B Kf7 Bh3 Rg3 Bf5 Rf3 Qf6+
bk1Br3/2NRBQ2/Q3Q1R1/1Q4KB/6b1/r1pR1b2/nb2R1bq/1N4NQ b - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 b5 a4 g4 axb5 g3 b6 Nh6 b7 Nf5 hxg3 Ne7 g4 Ng8 g5 Qe7 Nh3 Qf6 Ng1 Qd8 d4 c5 b4 Qe7 b5 Na6 b6 Nc7 Rh6 Qd6 Rh1 Nb5 cxb5 c4 Nh3 Ke7 Ng1 Qc5 dxc5 Ke8 Kf2 Kd8 Ke3 a5 Kf4 d5 b8N h5 g4 f5 e4 h4 g6 d4 b7 Kc7 e6 a4 c6 a3 b6+ Kd8 e5 a2 e7+ Ke8 g5 d3 c7 c3 g7 h3 g6 h2 Na6 Kd7 b8Q d2 e8R Be7 e6+ Kc6 b7 Rh7 Ba3 Bd6+ Kg5 f4 e7 f3 Be2 f2 Bh5 Nf6 g8R f1B g7 Bg4 c8Q+ Kb6 Bb4 Bg2 Nc7 Rh8 Rd8 Ra7 e8Q Ra3 Rd7 Nd5 Qf7 B4f3 Rgd8 Re8 g8Q Kc6 Qf1 d1B Qgg6 Bg4 Qge6 Bdf3 Ba5 Nb4 Qa8 Kc5 b8B Bf8 Qca6 Bh6+ Kg6 Bc1 Q8b7 Bb2 Kg5 Nd3 Qbb3 Nc1 Rd3 Ba8 R8d7 Baf3 Nh3 Ba8 Rg1 h1B Qfe1 B2f3 Rg3 Bhg2 Qh1 Rh8 Ng1 Rf8 Qe2 Re8 Bb6+ Kc6 Qab5+ Kb7 Qbe6 Bf5 Bc5+ Kc8 Be7 Bfh3 Ba7 Bhg4 Bb6 Kb8 Nd2 Nb3 Re1 a1Q Nb1 Qa2 Qf1 Nc1 Ree3 Qb3 Re2 Na2 Qa6 Bfe4 Q1f5 Qc2 Qfb5 Bed5 Rgf3 Be4 Rf6 Bef3 Rg6 Qd2+ Rde3 Qd6 Rd3 Qh2 Bbc5+ Bfb7 Bd8 B2f3 Bce7 Bg2 Qbf5 Bbf3 Qfb5+
2n2rB1/rb1RNRp1/k4Qb1/1r2R3/rNN3B1/3Q2q1/RKN4Q/B2r3N b - - 0 1 legal: proof: e4 b5 a4 e5 axb5 d5 exd5 h5 f4 h4 c4 h3 c5 e4 d4 Bd6 cxd6 Kd7 gxh3 Nc6 h4 Ke8 h5 Ne5 fxe5 Bd7 Bf4 Bh3 Bc1 Bc8 Kd2 Kd7 Kc3 f5 h4 a5 b4 c5 b6 e3 b7 f4 b8R c4 h6 e2 b5 e1R e6+ Ke8 b6 a4 h5 f3 h7 a3 e7 Kd7 b7 f2 h6 a2 Kb2 Nf6 Nh3 Re3 Nd2 Ng8 Be2 f1B Nf2 Qe8 Rh5 Rf3 Re5 Rf6 Nh1 Re6 Bg4 Qh5 e8B+ Kd8 d7 Kc7 d8R Kb6 d6 Qg6 d5 Ra4 d7 Nf6 d6 Ra8 Bf7 Rf8 h8N Ng8 h7 Qf6 Ng6 Bg2 h8Q Qf4 Ne7 Qf3 Qh2 Nh6 Bg8 Qf4 Qf3 Ka6 Qd3 Ra7 Ra8 Nf7 b8N+ Kb6 Na6 Bgb7 Nb4 Qg3 Nc2 Ka6 Rb8 Be4 Rb3 Rg6 Rb7 Rg5 Rc7 Bg6 Rb7 Nh6 Rc7 Nf5 Rb7 Rf7 Rf8 Rf6 d8N Rf7 d7 Nd6 Rc7 Bb7 Ndc6 Nc8 d8Q Rff5 Rd7 Rf6 Rb1 a1R Rf7 Ra4 Ra1 Rf2 Ra2 Rh5 Re6 Rd5 Re5 Rb5+ Kc3 Rf3 Bb2 Rf1 Ba1 Rd1 Kd4 c3+ Nc4 Rf1 Qc7 Rf6 Qd6 Rf2 Qf6 Rf1 Ne3 c2 Kc3 c1R+ Nc2 Rcd1 Re4 Rh5 Re5 Rff5 Kb2 Rh8 Bh7 Rf8 Bg8 Rg5 Re1 Rd5 Re5 Rb5+ N6b4#
n2b4/Bb1q3q/2Q1N1r1/7Q/1qN1NQ2/r1k1qRR1/R1B1p1KB/3BN2N b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Kf2 Kd7 d4 Kd6 b4 e5 f6 a5 b6 c5 b5 h5 b7 a4 b8Q+ Qc7 f7 h4 b6 c4 b7 e4 Na3 h3 Be3 h2 Nf3 c3 Be2 c2 Ne1 c1Q Nc4+ Ke7 d6+ Ke6 d7 Kd5 d8N a3 Ra2 Qd6 Ne6 Nf6 g8B Qc5 g7 Rh6 g6 Qd6 Rg1 h1Q Bh7 Qc5 g8N Qb6 g7 Be7 f8R Ra5 Rg3 Rh4 Qf4 Bd6 b8B Be7 Nh6 Ne8 g8N Qb4 Nf5 Rg4 Bf3 Qh6 Kg2 Nc7 Qe2 Bb7 Nf6+ Kc6 d5+ Kb5 d6 Bd8 d7 Na8 Bd6 Rg6 Ba7 e3 Ne4 Ka4 Bh5 Kb3 Qeg4 Qcc3 Qh4 Ra4 Bg4 Qhg7 Qh5 Qgd4 Bd1+ Qc2+ Kf3 e2 Kg2+ Qe3 Bdb8 Bh4 d8Q Bf6 Qa5 Bd8 Qb5 Ra6 Ra1 a2 Qc6 Ra5 Rg5 Ra3 Nfg3 Qed2 Nh1 Qd7 Ned6 Kc3 Rg3+ Qd3 Rf7 Qe3 Rf8 Rg7 Bhc2 Rg5 Qfe4 Qh7 Rf3 Rg6 Qf4 Qd7 Rb1 a1Q Rb2 Qb1 Ra2 Qd3 Bg1 Qc1 Bba7 Qce3 Bh2 Qf5 Bb3 Qff7 Bbc2 Qh7 Ne4#
1N1k2R1/2RBN2K/3Bp2B/BRn2nQ1/qr6/1n3rNr/1R1Q2B1/3Q2qq b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 Ke2 a5 Ke3 h5 Ke4 c5 b4 g2 d4 h4 d6 h3 b6 a4 b5 h2 d5 a3 g5 a2 g6 c4 g7 c3 b7 c2 d7+ Kf7 d6 Na6 b8N Nb4 b6 Na6 b7 Qf8 d8B Ke8 d7+ Kf7 Ne2 g1N Bg2 Rh4 Ng3 Ra7 Nc3 Rh6 Ba5 Nc7 d8Q Na6 Nd5 Rh5 Rb1 a1Q Rb2 Nh6 Bcd2 Qe8 g8B+ Kf8 f7 Kg7 f8Q+ Kh8 f6 c1Q f7 Qc8 f5 Qcc1 f6 Nf5 Bh6 Nf3 Qd2 Qc5 Rc1 Qg1 Rc7 h1R Qd6 Qb5 Qfd8 N3d4 f8R R5h3 f7 Nc5+ Kf4 Qe8 Kg5 Ndb3 Kg6 Qea4 Re8 Ra6 f8B Rb6 Be6 Rb4 Bd7 e6 Q8g5 Kg8 Rd8 Qaf1 Qd1 R1h2 Qdf4 Qh1 Qfd2 Qfg1 Ne7+ Kh8 Ne4 Rf3 Ng3 Rhh4 Nbc6 Rh3 b8R Rd4 Rb5 Rb4 Nd5 Kg8 Ra8 Ne3 Nb8 Nf5 Bd6 Ng7 Bf4 Kf8 Kh7 Kf7 Bd6 Nf5 Bc8+ Ke8 Ne7 Kd8 Bd7 Rc4 Ra6 Rcf4 Ra8 Rb4 Bc8 Ne4 Na6 Ke8 Bd7+ Kf7 Rg8 Nec5 Rg7+ Kf8 Bc8 Ke8 Bd7+ Kd8 Nb8 Nh4 Rg6 Nf5 Rg8#
1NN1Q1RQ/N2Q2K1/q7/QR1n1R2/qq1kq2p/BN3n2/4B1Br/4rn1N b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kd4 a5 b4 h5 f7 g2 f8Q c6 f6 a4 g5 a3 g6 a2 b6 h4 b7 Qd7 f7 Ra4 f5 Rh5 g7 Rh6 f6 Ra5 b5 Qc7 b6 Rc5 Qe8 e6 f8N Qf7 Ng6 Qe7 f7 Qd7 f8R Ne7 g8B Rh8 Ba3 Qc7 Nh3 g1N Bg2 Nc8 Ne7 Qd7 Nf2 Na6 b8Q+ Nc7 b7 Nb6 Rf5 Nc4 d3 Rh6 Nd2 Ne3 Nb3 Nf1 Rb1 a1Q+ Ke4 e5 d4 Nf3 Rg1 Qa2 Nh1 Re6 Bf7 Qd2 Bh5 Qb4 Qh8 Rc4 Qbe8 c5 b8N Rc2 Qd3 c4 Rb2 N3h2 Be2 c3 Qa6+ Qc6 Qa5 Qa6 Rb1 Nf3 Rb2 Na8 Rb1 Nb6 Nc8+ Kc7 d6+ Kb7 d7 Nd5 d8Q Re7 Nd7 Kc6 Rb2 Rd2 Rb1 c2 Rb2 c1Q Nb8+ Kb7 Qd6 Qcc6 Rb1 Qca4 Qdd7+ Nc7 Rf7 Re6 Kf5 e4 d5 e3 d6 Re5+ Kg6 Ra2 Bd3 e2 Kg7 e1Q Rf5 Qee4 Be2 Rb2 Qdf7 Re6 d7 Nd5 Qfe7 Rc6 Qe6 Rc1 Q6f7 Re1 d8N+ Ka8 Qfe6 Rc2 Ndc6 Kb7 N6a7 Rb2 Nb6 Kc7 Q6c8+ Kd6 Bh3 Qe3 Nd2 Qc2 Kf8 Nf4 Rg8 Qee4 Bd1 Qa4 Kg7 Qc5 Qb7 Ra2 Rb5 Qcb4 Nb3 Rh2 Bg2 Nd5 Be2 Qe6 Rf6 Ke5 Nbc8 Ke4 Qbc7 Ke3 Qcd7 Qee4 Bd1 Kd3 Rf5 Kc4 Be2+ Kc3 Nd2 Kd4 Nb3+
bB1K1N1N/5Rr1/q2NQ3/1B3Q2/2Q2R1N/1p1Q2pr/2r1Rb2/1bnkBN2 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 h4 Na6 f5 Nc5 g5 Ne4 Bg2 Nef6 gxf6 g5 Bh3 g4 Bf1 Bh6 Ne2 Qf8 Ng1 Qg7 Bb2 Qg6 Bc1 Qg5 hxg5 Bf8 Kf2 Kd6 Ke3 Kc5 Kf4 Kb4 Ke5 c5 a4 h5 d4 b5 a6 h4 g6 e6 a5 c4 a7 h3 d6 c3 g7 h2 d5 g3 d7 c2 d8N Kb3 d6 b4 a6 Rb8 a8N Rh6 d7 Bb7 a7 Ne7 Kd6 e5 Kc7 e4 g8Q e3 Bb5 e2 Ra2 e1R Nb6 Ba6 a8Q Bc8 Qc6 Rh4 Bf4 Rh5 Nc4 Rf1 Qe6 Rh8 Nbd2+ Kc3 Nd6 c1Q Ngf3 b3 Nh4 Rf3 Rf1 Bg7 f8R h1B f7 Rf2 f6 Qa3 Qdg4 Rh2 Qgf5 Nc6 Be5+ Nd4 Rf4 Bc6 Nf1 Ba8 Re2 Bh6 Qgg4 Bcb7 Qg8 Be4 Qgg4 Bc2 Qc4+ Kb2 Qfe6 Kc1 Qgf5 Rb7+ Kc8 Nc6 Bc3 Qa6 Be1 Bg7 Qfd3 Qa2 Ng2 R8h7 Re5 R7h3 Nh4 Rd2 Re2 Rh2 Re8 Rh3 f8Q Qa4 N8f7 Nb4 d8B Na2 Nh8 Qa6 f7 Bd4 Re7 Kd1 Bc7 Nc1 Kd8 Bf2 Bb8 Rc7 Qg7 Bb1 f8N Rb7 Qge5 Ra7 Q5f5 Rb7 Re8 Rf7 Re7 Rg7 Qf3 Ra2 Rf7 Rc2 Q3d3+
3k2N1/1N1brnNp/b4nR1/B1R5/3Q2pB/Q1q2Q2/Q1R5/1QKn1qRB b - - 0 1 illegal: No possible last move
1Kn1RNQk/1pR1RpqB/1B1Q4/1R1Bq2Q/2R1qN2/4Q2r/2N5/b4n1r b - - 0 1 illegal: No possible last move
2krN2R/b1B2Knp/3Rp1Q1/4NR2/b1B3nB/N1R3R1/2QQr1n1/1n5N b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Rh8 g5 Qd6 g7 Ra8 Bg2 Qg6 hxg6 Ng8 Bf1 Nb8 Ke2 Kd7 Ke3 c5 Kf4 a5 Ke5 e6 d4 c4 b4 a4 d6 a3 d5 a2 b6 c3 f6 c2 f7 Ba6 b5 Nf6 g8Q Ne8 g7 Bc8 b7 Ra4 b6 Rh4 g6 Rf4 Rh5 Rf3 Ne2 Rb3 Rf5 Nf6 Bg5 c1N Na3 Rb2 Ng3 Rg2 Bh4 Be7 f8N+ Kd8 d7 Bc5 Bc4 Rb2 Nh1 Na6 b8R Ne2 b7 Rb4 Rc1 Kc7 d8R Rb3 d6+ Kb6 d7 Kc7 Ra8 Nf4 b8B+ Kb7 Bd6 N6h5 Bc7 Ng2 Qf7 Nb4 g8N Rf3 g7 Nd5 Nf6 Rf2 g8R Nc3 Rg3 a1N Qg6 Nb1 Rcc3 Nc2 Qe2 Nce3 Qc2 Bd4+ Kd6 Re2 Ke7 Ng4 Kf7 Rg8 Ra6 Bf2 Re8 Ba7 d8Q Ng7 Qdd2 Rh8 Rd6 Bd7 Rd8 Ba4 N8d7 Rg8 Ne5 Rh8 R8d7 Ra8 Rd8 Rb8 Rf8 Rd8 Ne8 Kc8 Rh8
2NR4/nN1n1N2/QBBKR3/2R5/2QBpnq1/2r1Q1b1/1pq1q2k/1RQ4R b - - 0 1 legal: proof: g4 a5 b4 b5 bxa5 f5 c4 d5 cxd5 g5 f4 Bb7 e4 Na6 exf5 Nh6 f6 Nb8 f7+ Kd7 f5 Bc8 h3 Ng8 f6 Kd6 Qa4 Bf5 Qc2 Kd7 gxf5 g4 Qd1 g3 Be2 Ra6 Bf1 Rc6 Bd3 Rc4 Bf1 Rg4 hxg4 Qe8 Nc3 Qc8 Nb1 Qd8 Ke2 Kd6 Kd3 Ke5 a4 Kf4 Kd4 h5 Kc5 e5+ d6 h4 d4+ Ke4 g5 g2 a6 c6 a5 h3 g6 h2 d5 b4 g7 b3 a7 b2 a8N Rh6 a6 Qc8 a7 Rh7 Nh3 g1N Nb6 Qe8 a8Q Qc8 Be3 Nh6 g8Q Rh8 Qc1 Kf3 Ng5+ Kg3 Bb5 e4 Nc3 Rh7 Nca4 Nh3 Rb1 Qe8 Qa6 Bg7 f8R Qe5 d7 Qe7+ d6 Qd8 f7 Be5 f6 Ng4 Nc8 Nf4 Bd4 Rh3 Re8 Kg2 f8B Rc3+ Qc4 Kg3 f7 Nf6 Bh6 Kg2 Re6 Qg8 d8R Nfd7+ Kb4 Qg6 f8Q Qf5 Nf7 Qg4 Nc5 Kh3 Re1 h1Q Nb7 Qhg2 Rh1+ Qh2 Ba4 c5+ Kb5 Nc6 Qh8 Nh5 Bhe3 Bg3 Qh6 Kg2 Rg8 Nf4 Rg5 Qhh5 Bg1 Qe2 Bge3 Qhg4 Bf2 Nde5 Kb6 Na7 Kc7 Nd7 Bb5 Nf8 Bc6 Nd7 Qb3 c4 Rc5 Rc2 Qce3 c3 Qbc4 Rc1 Qg5 c2 Bg1 Rd1 Bf2 c1Q Qh6 Rd3 Qg5 Ne5 d7 Qcc2 d8R Nd7 Kd6 Rb3 Be1 Rd3 Ba5 Ra3 Bb6 Rc3 Qh4 Bh2 Qe1 Bg3 Rg1+ Kh3 Q1c1 Kh2 Rh1+
3qb1Q1/1QB1Nr2/K4Q2/RQ5p/3RN3/pk1rNb1Q/4qbBR/2qNB3 b - - 0 1 legal: proof: h4 d5 f4 g5 a4 f5 c4 b5 cxd5 e5 axb5 Na6 Nc3 Nh6 Nb1 Nc5 fxe5 f4 g4 Nf5 gxf5 g4 Ra4 Ne4 Ra1 Ng5 hxg5 Bd6 Nf3 Bc5 Ng1 Bf8 e4 Kd7 Ke2 a5 Kd3 h5 Kc4 c5 d4 g3 b4 f3 b6 f2 Kb5 c4 b7 c3 b8N+ Ke7 d6+ Kf7 d5 c2 d7 g2 d6 a4 e6+ Kg7 f6+ Kg6 e7 Kf7 e8Q+ Kg8 f7+ Kg7 g6 Kf6 e5+ Kf5 e6 Ke5 e7 Bg7 f8B Qc7 d8Q Qa7 d7 Bf6 g7 Qe3 g8Q Qa7 Nh3 g1Q Bf4+ Ke4 Qf3+ Kd4 Bg2 c1Q Ng5 Rh6 Rh2 Qd2 Qh3 Qa2 Bc7 Qb2 Nc3 Qgb1 Nge4 Q1c1 Nd1 Qe3 Nc6+ Kd3 Qef7 Kc2 e8N Bb7 Ng7 Rh7 Nf5 Bd4 Qdf6 Qec1 d8R Qb8 Nce7 Bb6 Rd7 Qd8 Rd4 Bc5 Qe8 Rf7 Nfe3+ Kb3 Ra2 Ba7 Ka5 f1B b5 Bc6 b6 Bfb5 b7 Qe2 b8Q Bd5 Qb7 a3 Rc2 Bc6 Rc5 Bd5 Ng5 Bf3 Ne4 Rb8 Qed7 Ka2 Qdf5 Be8 Qd7 Rc8 Qdb5 Ra8 Ka6 Rb8 Ba5 Bb6 Bb4 Kb3 Bh6 Rc8 Bf4 Rc6 Rg5 Rc3 Bc7 Rd3 Q5c6 Ba7 Ra5 Bc5 Qcd7 Bd6 Qdf5 Bg3 Qfb5 Bf2 Be1+
1N1q2q1/1q2Qr1B/6R1/Q4Q1R/Kbn5/pQp1q2Q/N1BknB2/RN5R b - - 0 1 illegal: No possible last move
1r4rR/QRr1B2N/BRp1K1bb/4Q1Q1/3B3R/p3Q3/k1NN1b2/2Rb3q b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Kd7 f7 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 g5 Nc6 h3 Nf6 h4 Ne5 Ke2 Nf3 gxf6 g5 Kf2 g4 Ke2 Ng5 hxg5 g3 Ke1 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kd6 Kf3 Kc5 Kf4 Kb4 Ke5 h5 d4 a5 d6 h4 d5 a4 b6 g2 d7 h3 b7 c6 b8R+ Qb6 d8R e6 g6 h2 d6 a3 d7 Rh3 g7 Qb7 g8R Bh6 f8N Ra5+ Qd5 Ka4 b4 Rg3 b5 Qa7 f7 Kb4 b6 Rg5 b7 Qa8 Ba6 Rb5 Rh8 Ra5 Nf3 g1R Be3 Rh5 Nh7 Rd1 Ne1 Rg5 Bd4 Rg8 f6 Rb5 f8Q+ Ka4 Qdc5 Kb3 f7 Rb4 Kf6 e5 Qfe7 e4 f8B e3 Qce5 e2 Nc2 e1B Ke6 Bf2 Q7g5 Rd3 Be7 Qa7 Rc1 h1B Qge3 Be4 Ra2 Bg6 Nd2+ Ka4 Re8 Qc5 Rb2 Qd5+ Kf6 Qh1 d8Q Bh3 Rb3 Bg2 Ke6 Bf3 Rf8 Rb6 Rf4 Bd1 Rh4 Rb5 Rb2 Rdb3 Rbb1 Rd5 Rb2 Rd7 Rbb1 Rc7 Qdd5 Rd3 Rb6 Rb3 Q5g5 Rb4 Qde5 Rb5 Ra8 Rb3 b8Q Rb1 Qa7 Rb5 Nf3 Rb1 Rab8 Rb4 Q3e4 Kb3 Qee3+ Ka2 Nd2 Rc4 Rb3 Rc5 R8b4 Rb5 Rbb1 Rbb8 Rb7 Qf1 R1b4 Qh1 R4b6
RR2r1Bb/5nb1/NK1R2pR/1NnBkN2/1npN4/2Q2NB1/1p6/2Q2Q1q b - - 0 1 illegal: No possible last move
2k3K1/3BRpBN/1q3Q2/1NNB1b1Q/r1p5/nB3p2/1nRQRQ2/1n2b1B1 b - - 0 1 illegal: Other
b2KBNQB/2RR4/B3QN1b/1p4np/5rpr/1N2BQ1R/6q1/1kN2B1q b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 h4 Na6 f5 Nc5 g5 Ne4 Bg2 Nef6 gxf6 g5 Bh3 g4 Bf1 Bh6 Ne2 Qf8 Ng1 Qg7 Bb2 Qg6 Bc1 Qg5 hxg5 Bf8 Ke2 Kd6 Kd3 Ke5 Kc4 Ke4 Kb5 c5 Kb6 h5 Kc7 b5 d4 e5 a4 c4 g6 c3 d6 c2 d5 Ba6 d7 Re8 d8R Bb4 f8Q Rh6 d6 Be1 d7 Bc8 f7 Rh7 f6 Rh6 g7 Ba6 Nd2+ Kd4 Nb3+ Kc3 Be3 Kb2 Rh3 e4 Ne2 Rh7 Rc1 Re7 Qe8 Rh6 f8B Bd2 f7 Nf6 g8N Rh8 Bg7 Rh6 f8N Rg6 Bh8 Bc8 a6 Re6 a7 Bb7 a5 Ba8 a6 Rd6 Kc8 Rd3 Qe6 Rg5 Kc7 Rf5 Kc8 Ka2 Kc7 Nh7 Nf6 Ng5 Kc8 Bc6 a8B Rf4 a7 Bd5 Bb7 Kb2 Bg1 e3 a8B Bc6 Ba6 Rc3 Ng3 e2 Be3 e1Q Qf3 Qf2 Ne2 Qg2 Kc7 Be4+ Bc6 Bd5 Re1 Rd3 Nec1 Kb1 Rc8 Be4 d8Q Bd5 Be8 Ba8 Qdd5 Rc3+ Kd8 Rd3 Na2+ c1Q Rc7 Rc3 Re2 Qe1 Nac1 Qh4 Rg3 Qhh1 Rh3 Rc2 Rh2 Qf2 Bb6 Re4 Qc8 Nh7 Qcf5 Bh6 Rd2 Rf4 Qg8 Ng5 Rdd7 Qfg1 Q5d5 Re2 Rh4 Rh2 Qde6 Qgg2 Be3 Rb4 Rh3 Rf4 Rg3 Rh4 Rh3
2N2b2/2N2Nb1/Q1n1B1n1/r3p1p1/1NB5/r1B1RR2/Rn1K1pQN/Q1R4k b - - 0 1 illegal: No possible last move
1k6/pqNQ2pN/2r2N1r/5qB1/K1b3RQ/N3Q3/1B1RBRp1/RNb2r2 b - - 0 1 illegal: Other
QRN1nnkn/2Bb2q1/1N2rR2/2N1R2R/q1Bb2QB/1b4K1/1Qq5/5rRB b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 Kf2 c5 b4 a5 g4 h5 d4 e5 g6+ Kg7 g5 a4 b6 a3 d6 e4 d7 e3+ Kg3 e2 b7 e1N d5 a2 d6 c4 b5 c3 b6 c2 Bg2 Qf6 d8R Nd3 d7 Ne7 Nd2 Nf2 Ne4 Ra4 Nc5 Re4 Nh3 Na6 b8R Re5 b7 Nc7 Re8 Qd6 d8B Qa6 f6+ Kg8 f7+ Kg7 f5 Qd6 Bf4 c1Q Qg4 Qc2 Rag1 a1Q Bd5 Rh6 f6+ Kh8 Bc6 Rf5 g7+ Kh7 g8N Qaa4 Bg2 Ng6 Re5 Nh8 Ne7 Bd7 Nc8 Bg7 f8R Nd3 f7 Qdd4 Bd5 Bf6 g6+ Kg7 Bg5 Ne8 Bh4 Rf1 Bc7 Nf4 Rh2 Qdb2 Bh1 Ne6 Nf4 Qba1 Nd5 Qab2 Rf5 Bd4 Re5 Qba1 Ra8 Qab2 b8Q Qb7 Be7 Qba7 Qb2 Qb7 Ndb6 h4+ Kh3 Qba7 Rb8 Qb7 Rhe2 Qba7 Rh5 Qb7 Kh2 h3 Kg3 h2 Bh4 Qba7 Ree5 Qb7 Bg2 h1B Bc6 Bf3 Bd5 Bd1 Bh1 Qd5 Re3 Qg5 Re5 Kf6 g7 Rg6 g8B Kg7 Bh7 Rh6 Bd3 Qg6 Qa2 Kh7 Bc4 Qg7 Rg8 Nf8 Qb2 Qf6 Rgg5 Qfg6 Rgf5 Qg7 Rhg5 Re6 Rf6 Qd2 Rgf5 Bb3 Rg5 Nfg6 f8Q Qc2 Qd6 Kg8 Rh5 Nf8 Qd5 Qa1 Qg2 Qa4 Qa8
3R1Q1q/1r1B1rB1/3bNn1B/Kb6/4nn1N/2RQNNQ1/1k4nn/R2Nb1Q1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 Kf6 d4 g5 Kd2 e5 Kc3 c5 f4 a5 h6 a4 b6 c4 d6 e4 h7 e3 d5 e2 h5 e1B+ Nd2 a3 d7 g4 d6 g3 h6 g2 b7 a2 b5 Ne7 Kb4 c3 b6 c2 Rh3 Ra7 Nf3 g1N Bb5 Na6+ Ka5 Nd5 b8N Nac7+ Na6 Rg8 h8N Qe8 d8Q+ Qe7 h7 Ra8 d7 Rg7 b7 Rb8 Nc5 Na6 Ng6 Rf7 Nd3 Nc5 Ngh4 Ne4 h8B+ Bg7 Qg8 Qe8 d8R Bd7 Nf2 Bc6 Ba4 Bb5 Qe2 Qe5 Qd3 Qe8 Ba3 c1N Bf8 Nce2 Rg3 Rc8 b8Q Rcc7 Qa7 Rb7 Rh3 Bc4 Bd7 Bb5 Qc5 Qe5 Qcc3 Qd4 Nc4 Qe5 Ne3 Qd4 Rd1 a1N Rg3 Nc2 Rh3 N2g3 Ra1 Nf1 Rg3 Nh2 Rh3 Ndb4 Qa3 Ne2 Qc1 Bd2 Qg1 Ne1 Rg3 Ng2 Rh3 Re7 Qgb3 Be1 Qa3 Kf7 f6 Nd5+ Qac3 Bh6 f5 Bf4 Bh6 Bd6 B8g7 Nef4 Be8+ Kg8 f7+ Kh7 Bd7 Ndf6 f8N+ Kg8 Qb4 Kf7 Ne6 Qc3 Rb8 Qc8 Qbc3 Qh8 Rc8 Re8 Rd8 Rf8 Rg3 Ke7 Rh3 Rf7 Qb1 Be5 Nfg5 Kd6 Neg4 Ne8 f6 Re7 f7 Kd5 f8Q N8f6 Re3 Rf7 Qd1+ Bd4 Qf3 Be5 Qg3 Bb8 Ngf3 Bd6 Qd2+ Kc4 Rd3 Nc3 Ne3+ Kb3 Qd1+ Kb2 Qe2+ Bd2 Qed1 Nce4+ Rc3 Be1 Qd4 Bd2 Qd3 Be1 Nfd1+
4b2B/2K1NN2/b4RQ1/2k4n/Bq1rbRbr/b4B1R/n1BrNNBQ/1Q6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Ke3 f5 Kd4 d5 g4 a5 e4 h5 c4 a4 b4 f4 c6 f3 Kc5 d4 b6 h4 e6 d3 e5 a3 c7 d2 g6 a2 g7 f2 g5 h3 g6 h2 b7 Qd3 Kb6 Qa3 b5 Nh6 g8N+ Ke8 e7 Kd7 e8N Nf7 g7 Qg3 c5 Ra4 c6+ Ke6 Bb2 Kd5 e6 Nh6 e7 Rb4 Nd6 Qe5 e8B Rd4 Bg2+ Re4 Ne7+ Ke6 g8Q+ Nf7 Qg6+ Qf6 Nh3 f1B Nc3 Rd4 Nf2 Nh6 Qdb1 d1B Ne2 Nf5 Nf7 Bd7 c8B Ng7 c7 Na6 b8R Nh5 Bcb7 Nb4 c8B Ba4 Kc7 Bd1 Qg8 Qh4 b6 Rh7 Bbf3 Qe4 Ng6 Kd5 b7 Kc5 Ne7 Bg4 Qg7 Ba4 Qg6 Rd2 Bh8 Rd4 Nc1 Ba6 Bf5 Rd2 Rf1 h1B Ne2 Qd4 Bed7 B4b5 Bc2 Qb2 Bdf5 Be8 Bd7 Rh6 Bda4 Qc3 Qg7 Rhd6 Qg6 R6d4 Rc8 Qb3 b8Q Qa3 Qc1 Qb2 Rb1 a1R Qe1 Qc3 Rb3 Na2 Qb1 Qb4 Rd8 Nf4 Rd6 Nh5 Qb2 Rad1 Qb1 Re4 Rf6 Rf4 Bfc6 Rdd4 Rh3 R1d2 Bgd5 Be4 Bb7 Bed3 Bf3 Be4 Bbc6 Bgd7 Bg2 Rh4 Bd5 Bg4 Bdc6 Bef5 Bcf3 Be4 Nc6 Bgf5 Nh1 Kc4 Qd8 Kc5 Bg4 Qb5 Qd6+ Kc4 Qh2 Ba3 Rf4 Kc5 Ne7 Qb4 B4f3 Bg4 Nf2
1K1n2QR/1Qr2n2/Q1Q1n3/1B2RR2/b5rr/2N1qNN1/QBk2bBR/b4r2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 h5 f4 a5 d4 c5 b6 h4 b7 c4 g6 h3 d6 e6 d7 h2 f6 a4 f5 a3 f7 a2 g7 c3 g5 c2 f6 Kb3 g6 Be7 f8N Ra4 f7 Ra3 d5 Nf6 g8B Qe8 d8R Bb4 g7 Qa4 d6 Na6 b8Q Rh3 d7 Rh6 Qc7 Nh7 Qe2 Rf6 Bg2 Ba5 Kd6 e5+ Ne6 e4 f8R Nc5 Qa6 e3 Ne2 Be1 Ng3 Rf7 Ng5 e2 Rde8 Qe4 d8Q Bh3 Nc3 Qe3 Rf1 Bd7 Rf5 h1R Nf3 Bb5 Qcc6 Ng5 Qda5 Ra4 Rb1 Bf2 Ree5 Rg4 Qa3+ Kc4 Q3a4+ Kd3 b4 Qd2 Bb2 c1R Rfe8 Rce1 Qb3 a1B Qba2 Qe3 Rf8 Re7 Bc4+ Kc2 Rh8 Rh7 g8Q Ba4 b5 Rhh4 b6 Reh7 Re7 Nb7+ Kc7 Nd8 b7 Rg1 b8Q e1N Bb5 Nd3 Rd1 Nf4 Qbb7 Rgh1 Kb8 Re1 Re6 Rc7 Rb1 Ngf7 Ree5 Nfe6 Rd1 Re2 Rf1 Re1 Rh1 Rf1 Rh2
R1Rb3Q/n4qB1/BNr2b2/Bb2r3/BR4Q1/K1BNn2r/1Q3Q2/2Nrnk2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 Kd2 c5 Kc2 h5 Kb3 e5 g4 e4 g6 e3 b6 e2 b5 e1B f6 c4+ Ka3 c3 f7 a4 b7 c2 g5 h4 f5 h3 b6 h2 f6 Nc6 b8N Qe7 b7 Nb4 g7 Qd8 g6 Nc6 Nf3 Na5 Ba6 Qb6 Nd7 Bc3 b8Q+ Qc7 Bd2 c1N Nfe5 Be7 f8B Nc6 f7 Rh5 Nb6 Nb4 Qg4 Rh6 Nd3 Nf6 g8Q Bd7 g7 Nc6 Qh8 Na7 g8B Bb5 Bg7 Bd8 Rd1 h1R f8Q+ Be7 Be1 R1h3 Nd2 Rg6 Qf7 Bd8 Nb3 Rg5 Qb7 Re5 Rd2 Rc8 Rb2 Qc4 Raa2 Rc5 Rb1 Ba1 Bc3 Rc6 Bh7 Nd7 Qf2 Nf6 Nb2 Qf1 Bc2 Nd3 Nc1 Ne1 Nbd3 Bb2+ Kb4 a3 Ba4 Ba1 Rc2 a2 Ka3 Qe2 Rb4 Qf3 Qgg1 Ng4 Qgg3 Ne3 Qg4 Qf5 Qb8+ Ke7 d6+ Ke6 d7 Bb2+ Kb3 a1R d5+ Kf7 d6 Ke6 Na2 Rd1 Nac1 Bf6 d8B Be7 Nc4 Kd5 d7 Qf7 Ba5 Ba1 Ka3 Bd8 Qg5 Ke4 Qb6 Be7 d8R Bf6 Ra8 Bd8 Qfh4+ Kf3 Qbd4 Qf8 Nb6 Qf7 Qg6 Rd2 Qe6 Kg2 Qb3 Kf1 Qdg4 Rd1 Qb2 Rg6 Bd4 Rf6 Rcc8 Rc6 Bc3 Rcc5 Bd4 Rg5 Qa2 Rc6 Bde5 Bc3 Qb2 Rf5 Bb8 Bcf6 Be5 Rh5 Bc3 Re5 Qhf2#
Qn1r2N1/1NrQ1b1B/1k1nq1N1/1N3N1R/2rBBrn1/5b2/K2RQ3/b2R3Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 h5 d4 e5 Kd2 a5 Kc2 c5 Kb2 Kc7 f4 c4 b6+ Kb7 f6 c3+ Ka2 h4 b5 a4 f5 c2 f7 h3 f6 a3 g6 h2 g5 e4 d6 e3 g7 e2 g6 e1R d7 Rh4 d5 Bd6 f8N Na6 f7 Bb4 d6 Rhe4 Bb2 c1R Nf3 Qc7 d8Q Ne7 g8N R4e3 d7 Re4 g7 Nd5 Qe2 Nb8 Nc3 Nf6 Nd4 Rf4 Ng6 Ne8 f8Q Qc6 Bg2 Ba5 Be4 Rf6 Nf5 Nd6 Qfe8 Rf7 Qh4 Rf1 d8R Rc2 Rd1 Rc7 Qd7 Rf4 Rd2 Bb4 Rhd1 h1B Qh3 Bf3 Qh1 Ra7 Re8 Bc5 Re5 Bd4 Rc5 Ra4 Rd5 Rc4 Re5 Ka8 b7+ Ka7 b6+ Ka6 Nb5 Ka5 Qf7 Be6 Qd7 Bf7 Rc5 Rc1 Rd5 Bf6 Bd4 Rc8 Rc5 Rd8 Rd5 Qc8 Re5 Rc7+ Rd5 R1c4 Rc5 Nc6 b8N Be5 b7 Kb6 Na6 Nb8 Qe7 Qe6 Qd7 Bf6 Rd5+ Ka5 Nc5 Kb6 N8e7 Be5 g8B Bg7 Bh7 Be5 Kb3 a2 Ng8 a1N+ Ka2 Bf6 Re5 Nc2 Rd5 Ne3 Re5 Na6 Rd5 Ng4 b8Q+ Ka5 Qa8 Kb6 Ng3 Bh8 Rh5 Nb8 Nf5 Bf6 Bg1 Bb2 Bd4 Ba1 Nb7+
rQ2Qn1R/NR6/b2n2rb/4Rb1B/NRRqQ1B1/1N1B1n2/K2n1k1B/1r6 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 Kd2 c5 Kc2 h5 Kb3 e5 g4 e4 g6 e3 b6 e2 b5 e1R f6 h4 f5 a4+ Ka2 a3 f7 c4 f6 h3 b7 c3 g7 c2 b6 h2 g5 Qc7 g6 Qd8 Qe2 Be6 Qe4 Na6 b8Q+ Qc7 b7 Ra7 Nd2 Rh3 Nb3 Be7 f8Q Rf3 f7 Nc5 Rb1 Rh3 Bd3 Na6 Qfe8 Nf6 g8B Rg3 f8R Nh7 g7 Ra8 Rf4 Bf5 Bf7 Bg5 g8B Nc5 Ne2 Bh6 Bh5 Nf8 Nc3 Rg6 Be6 Rf1 Rg1 h1B Na4 Bf3 Rg2 Be2 Rg5 Rh1 Bd2 Re1 Rb2 Rb1 Be1 Bf1 Bg3 Be2 Bh2 Bf1 Qbd8+ Qd7 b8R Be2 Rb4 Bf1 Bde2 Nb7 Beg4 Ba6 Bf7 Be6 Re5 Bf5 Qb8+ Qc7 Qe1 Nd8 Rb7 Nfe6 Qb5 Ke7 d6+ Kf6 d5 Kg5 d7 Qb6 Nbc5 Qd6 Kb3 a2 Rfe4 a1N+ Ka2 Qb6 Rbb4 Nb3 d6 Nbd4 Be8 Nf7 d8N Nf3 d7 Qa7 Nc6 Nd6 d8R Qb6 Qe3+ Kh4 Red4 Qa7 Qe4 Qb6 Na7 c1N+ Ka3 Nb3 Ka2 Nbd2 Nb3 Qc5 Bd7 Qb6 Rh8 Nf8 Be6 Qc5 Q5e8 Qb6 Bc4 Qc5 Bg1 Kg3 Bh2+ Kf2 Bd3 Qd5 Rdc4 Qc5 Qf4 Qd4 Qe4
5r2/2NR1R2/3B2bN/1Kn1Nnb1/2B1BqB1/1R1R2QQ/2b1bB1n/1krQr3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 Ke2 f5 Kd3 h5 Kc4 c5 d4 f4 g4 a4 b6 h4 b5 a3 b7 a2 b6 h3 g6 h2 g7 f3 e6 Kf6 d6 f2 d5 Ke5 g5 Ra6 e7 Bg4 e8B Nc6 b8B Nf6 g8Q Bh6 g6 Nh7 g7 Bc8 d7+ Qc7 d8R Bf5 b7 Bh3 d6 Bg2 d7 Ra3 Kb5 c4 Nc3 Na5 Bg6 Nb3 Be3 Nf6 Rb1 a1N Qh7 Nc2 g8N Ng4 Nd5 c3 Bc4 f1B Bf2 Bg5 Qh3 Nce3 Nh6 Nc5 Rb3 c2 Rf8 c1R d8R Ra4 Rd7 Be2 Rff7 Rf8 Bh7 Qd6 Nc7 Nf5 Nf3+ Kf4 e5 Ke4 e6 Qf4 e7 Raa1 Rf1 h1B e8B Nh2 Ne5 Bgf3 Rg1 Bh5 Rgg3 Bg6 Rgd3 Bg2 Na8 Bgf3 Bd6 Bg4 b8Q Bgf3 Qc2 Re1 Qd1 Rc1 Nc7 Bfh5 Qc2 Bd1 Qd2 Bc2 Qd1 Be2 Rde7 Rg8 Bd7 Rh8 Bde6 Rf8 Rd7 Ne3 Qe8 Bb1 Rdc3 Bf5 Nd3 Kd4 Qa8 Bc2 Qaf3 Be4 Qfg3 Bf5 Rb2 Be4 Ra3 Bf5 Ne5+ Bfd3 Ra1 Kc3 Bhf5 Be4 Bd5 B4d3 Bg4 Bg6 Bdf3 Nf5 Rb4 Bb3 Be4+ Kb2 Rb1+ Ka2 Rb2+ Ka1 Rd2 Bc2 Rb3 Ka2 Rdd3 Ka1 Ra3+ Kb1 Rab3+
RQ1Q4/Q1K1R3/k3rR1r/Br1qB1nq/r1BbNQ2/6NR/3r4/n3N1Qb b - - 0 1 illegal: No possible last move, all moves rejected
1BN4K/q1R1n2Q/nRrQq3/1r4n1/2B5/1NQ5/N1NnbBk1/b1BRN2n b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 a5 f4 g5 b4 c5 b6 e6 d6 a4 d5 a3 d7 g4 b7 g3 h6 a2 f6 c4 f5 c3 h7 g2 b5 c2 b6 Ne7 f7 Ra4 Kf6 e5 d6 e4 Bc4 e3 Nf3+ Kh3 Nbd2 g1N Ne1 e2 Nb3 Nbc6 b8B Nb4 b7 Rg8 h8Q+ Bh6 f8B Na6 Qh7 Qb6 d8N Ng6 Nf7 Qa5 d7 Nb4 d8N Ra3 Qd6 Ra4 Nc6 Nd3 Nb4 Nf3 Rg1 Ne7 Rg7 Nf2 Rb1 a1N Na2 Nd5+ Kg6 Qb6 f6 Qa7 Be7 Ra5 Bf8 Kg4 h4 Kh3 h5 Nh1 Be7 Bf4 h6 Ng5 Bd8 Rb5 Bb6 Rd8 Bf2 Be6 Rg8 Bd2 Kg7 Rc8 Kh8 Rc6 Rc8 Bg4 Rc7 Ne7 Qc5 Bc8 Nd6 Bg4 f7 Bc3+ Qd4 Bf3 f8N Bh5 Ne6 Bg4 Bd2 c1N Nc8 Nd3 Rd1 Nb4 Bc1 Na6 Qf6 Be5 Ned4 Bh5 Ndc2 Bb2 Nf3 e1Q Qd4 Qe6 Nfe1 Bg4 Qc3+ Kh2 Qg6 Be2 h7 Bh5 Kg7 Be2 h8Q+ Bh5 Qg8 Bf3 Kh8 Be2 Nd3 Kg2 Q8h7 Qf7 Qd6 Qe6 Na5 Nb3 Nde1+ Kf1 Qd8 Ba1 Qd6 Nd2 Nb3 Qae3 Ba7 Qc5 b8R Qb6 Rbb7 Qc5 Bb8 Qa7 Bg3 Kg1 Rb6 Kf1 Bh4 Kg1 Bf2+ Kf1 Nf3+ Kg2 Nfe1+
q1r2r1N/3nQBkR/qRb2R1N/3qNKn1/4Q1B1/B3Q3/6N1/2bqQb1Q b - - 0 1 illegal: No possible last move
1nNBk3/1Q1bQr1B/R1B5/nK2bb2/1N5Q/N1BBqrqR/3r2R1/b3Q3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 c5 Kd3 a5 Kc4 h5 d4 e5 g4 h4 f4 e4 b4 a4 d6 e3 d5 h3 g6 a3 g5 a2 f6 h2 g7 e2 d7+ Kf7 b6 e1R d6 Nh6 g8B+ Kg6 b5 Ng4 f7 Nh6 b7 Re5 b6 Rh7 f5+ Kg7 g6 Kf6 g7 Nc6 b8R Bb7 Bd2 Bc8 b7 Ra6 Nh3 Re2 Kb5 c4 Na3 c3 Nf2 c2 Qe1 c1Q Nd3 Ng4 Bc3+ Nce5 Nb4 Rh6 Bh7 Qe3 g8B Bg7 f8N Ra7 Ng6 Qc7 Ne7 Rh3 d8B Rd2 d7 Rf3 Bd5 Bh8 Bc6 Kf7 f6 Nc4 Be2 Nge5 Bed3 Na5 Rg1 h1B Rg2 Kf8 f7 Bf6 Ra8 Bg7 Rc1 a1B b8Q Bf6 Qb7 Bh8 Bd5 Nec6 Rd1 Nb8 Bc6 Qg3 Rb1 Be5 Rb2 Kg7 Rb3 Kf6 f8Q+ Ke6 Qh6+ Kf7 Qh4 Kf8 Bb6 Kf7 d8Q Bf5 Nc8+ Bd7 Qdg5 Kf8 Bd8 Ke8 Rf2 Bg2 Re2 Bh3 Rg2 Bf5 Qf6 Nc4 Qg7 Ra4 Ra6 Na5 Nbc2 Raf4 Nb4 Be6 Qgg5 Rf7 Qf6 Bf5 Qfg5 Kf8 Qe7+ Kg7 Rb2 Re2 Rh2 Ref2 Qeg5+ Kf8 Rh3 Ke8 Qf6 Rd2 Ra2 Rd1 Rg2 Rd2 Qe7+
2k4q/3R3R/n1Q2NrB/brr1rq2/B2Nb3/Nn2Q1QB/qN2N2R/3Q2K1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 h5 d4 e5 f4 a5 Kf2 c5 b6 e4 b7 h4 b5 c4 d6 a4 d5 c3 g6 a3 f6 h3 g5 a2 g7 c2 f5 h2 f7 Be7 f8N+ Ke8 d7+ Kf7 f6 Na6 b8N Qa5 d8Q Nc7 d6 Nh6 g8N Nd5 b6 Bf5 d7 Bd6 b7 Rh7 Na6 Be6 b8Q Nc7 Na3 Bd5 Nb4 Na6 Nd3 Qb5 Qdc7 Rg7 Qc6 Bc7 d8R Ba5 Ne2 Rg6 Bh3 Nf5 Nb2 Nd4 Qg3 Nb3 Rd7+ Ke8 Ne6 Rb8 N6d4 e3+ Kf1 Be4 f7+ Kf8 Rb1 a1Q Nf6 Qa2 Bd2 c1R Ra1 Rg7 g6 Rc5 Rc1 Qd3 Rc2 Rbb5 Rd6 Rg8 g7+ Ke7 Bc1 Rh8 g8B Rh6 Rd5 Rg6 Rd2 Nb8 Rh5 Kd8 Rh7 Qc2 Rd3 Na6 Bd2 Qc4 Bc1 Qe6 f8Q+ Qe8 Qfd6+ Qd7 Qdf4 Qf5 Be6 Qg5 Bd7 Qf5 Rg1 h1Q Qff2 Qhf3 Rg2 Q3h5 Kg1 Qh6 Bd2 Qg7 Rh2 Qh8 Nc3 e2 Bh6 Nc1 Qe3 e1R+ Bf1 Re2 Bh3 Nb3 Be8 Rc2 Nce2 Re5 Qd6+ Kc8 Qb6 Rb4 Ba4 Rcc5 Qc6+ Bc7 Ndc2 Rb8 Rdd7 Rbb5 Qb6 Bd8 Ncd4 Bc7 Qd6 Ba5 Qc6+
1bBB2Kb/Q2r1R2/1R4BN/1Q1n1Q2/q2r3B/4b1N1/n1kB3N/1bb2bQR b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 a3 f7 h3 g6 c4 g5 a2 f5 h2 b6 c3 d6 c2 g7 Kb3 b7 Rh7 f6 Rh3 g6 Ra6 Nc3 Rh7 Bd3 Qe8 d8B Ra3 d7 Rh6 Nf3 Ne7 g8N Ra4 g7 Nd5 Bd2 Ra3 Bg6 Ra8 Ne4 Rh8 Nh6 Na6 g8B Ra7 b8Q+ Nab4 Rb1 a1B Qg1 c1B Qb5 Bc5 f8R Be3 f7 Kc2 Bh4 Ba6 d8B Na2 Kd6 e5 b4 Bab2 B8h7 Re7 Bf5 Rg8 Bc8 Rg4 Bg6 Bbd4 Rg8 Ba1 f8Q Bab2 Qf5 Rd7+ Kc6 Bbd4 Rf8 Ba7 Rf7 Bb8 Qb6 Be2 b5 Bf1 Qa7 Rf4 b6 Rg4 Nd6+ e4 b7 Rf4 Qgg5 Rg4 Rb6 Rf4 Rg1 h1B Nh2 Bf3 Rh1 B3e2 Qg1 Bd3 Bhe7 Qh8 Bg5 Qd4 Bh4 Rg4 Qa5 Qa4+ Qb5 Bg5 Kc5 e3 Ne4 e2 Kc6 e1B Kc5 Be5 b8Q Bh8 Qa7 Bg3 Kc6 Bb8 Kc5 Rc7+ Kd6 Be3 Ke6 Rd7 Re7 Qb4 Kf7 Qa4 Kg8 Rf4 Rf7 Rg4 Ng3 Rd4 Ne4 Kd1 Rf8 Bb1 Rf7 Kc2 Ng3+
2nk3R/rn1n4/B3b1r1/2N2n1R/3nnBRB/8/1QqNRb1K/1QBBN1Q1 b - - 0 1 illegal: No possible last move
5N2/rQ1n2R1/RN2R1bB/3k1bnq/2Nn1Rrn/1Q4N1/3R1b1B/K1bB1Q2 b - - 0 1 illegal: No possible last move
4Q3/bB1BN2n/Bn3q1Q/r4r2/1R3B2/1N3KbB/rbb3Rr/2RNNQ1k b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 h5 e4 f5 b4 c5 d6 Ke6 b6 a4 g6 f4 g5 f3 b5 c4 g7 a3 d5+ Kf7 b7 Kg6 d7 h4 d6 Kh5 g6 Kg4 b6 c3 e6 h3 e5 c2 e7 a2 e8B h2 e6 Kh4 e7 Ra3 Bf4 c1B Nc3 Ra8 Ba6 Nf6 g8B Bb2 g7 Bc1 Be6 Ng8 Bh3 Ba3 Rc1 a1B Qf1 B1b2 Nd1 Nf6 g8B Rh7 Bd5 Bh6 Ke3 f2 Kf3 Bc5 Bc6 Qc7 d8Q Bf5 Bed7 Bc2 Qh8 Qd8 e8Q Bg7 Be4 Rh5 Qh6 Nh7 Bec6 Bge5 Bd5 Nc6 b8N Na5 b7 Qf6 Nc6 Ba7 b8R Nc4 Na5 Nb6 Nb3 Qf7 Ba4 Qf6 d7 Bc7 Bdb7 Bd6 Qg7 Ra5 d8N Bc7 Bad7 Bce5 Qc4 Ra2 Nc6 f1R+ Kg2 Rf3 Qf1 Bc7 Ne7 Bd6 Be5 Rf5 Bf4 Bc7 Kf3 Bd6 Ne2 Bc7 Rg1 h1R Rg6 Rh2 Rg2 Qf8 Be4 Nc4 Ned4 Bab6 Bac8 R8a5 Nc5 Ba7 Rb4 Qf6 Ba6 Rh1 Ndb3 Nb6 Nd3 Bcb8 Ne1 Bd6 Re2 Rh2 Beb7 Bc7 Ke3 Bd6 Bg5+ Kg3 Qgg6 Rhf2 Rd2 Kh2 Qh6 Bg3 Bf4 Re2+ Kf3 Rg2 Qd3 Kh1 Re2 Rh2 Rg2 Nc4 Qe2 Nb6 Qf1#
rR1K1R1n/BNRnQ3/B1rN2nR/1Q1Q4/2bB2q1/7R/qk2p1N1/3rbQ2 b - - 0 1 illegal: No possible last move
Q1n1k1r1/1q1B2n1/R2q4/r2nbBQ1/1Q1R1B1N/4NQB1/1Rp1K2B/1bq1N3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 c5 b4 h5 g4 a5 d4 e5 g6 a4 d6 a3 f6 c4 b6 e4 f5 e3 b5 h4 b7 a2 d5 h3 g5 c3 g7 h2 f7+ Kd7 f6 c2 b6 e2 g6 Qe8 Na3 Rh5 Bf4 Rf5 Nf3 Kd8 d7 Nh6 g8B Qe5 g7 Na6 b8B Qe6 b7 Qb6 Bh3 Qc6 Nc4 Ba3 f8N Nc7 f7 Qb5 Ng6 Rg5 f8Q+ Ne8 Qb4 Qb6 Ngh4 Ra5 Bf5 Qd6 Ne3 Bb2 Bge6 Be5 g8Q Nf7 Qh8 Ke7 d8R Rg8 Qh5 Ng7 Qg5+ Bf6 Kd2 e1N Ke2 Nd3 Ne1 Bd7 Rb1 a1Q Rb2 Qc1 Bc7 Ba4 b8B Bb3 Rf1 h1Q Bh2 Qc5 Bcg3 Ba2 Bbf4 Bb1 Rd7+ Ke8 d6 Qcd5 Ra7 Bd4 Ra6 Be5 Rf3 Qc5 Rf2 Qb7 d7+ Kf8 Rf1 Nd6 Rg1 Nc8 d8Q+ Ne8 Qd5 Qd6 Qh1 Ng7 Rf1 Qb8 Qa8 Ke8 Rf2 Qb7 Rg2 Nc5 Qd5 Nd7 Qf3 Nb6 Kf1 Nc4 Rd2 Nb6 Ke2 Nd5 Rd3 Qdc6 Rd4 Qd6 Bd7+
5bqr/R2N2N1/R3nrQ1/K1QN1r1b/1Q1N4/1N2pB2/3Bbk1B/1nR1R2q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 Kd2 c5 Kc3 h5 g4 e5 b6 e4 f6 h4 g6 a4 g5 a3 b7 a2 f5 h3 g7 h2 g6 c4 f7 e3 b5 Qd7 Kb4 c3 f6 c2 b6 Qh3 Ne2 Qf5 Nd2 Qf2 Bg2 Ra7 Re1 h1B Bf3 Bg2 Nb3 Qg1 Qd3 Rh4 Bd2 Qf2 Rac1 Nd7 b8N a1R b7 Nb6 Nd7 Na8 b8B+ Rc7 Qc3 Rb1 Ka5 Nh6 g8Q Rb2 g7 Qg3 Qh7 Ng8 Qg6 Ne7 g8N Rh8 Qc4 Bh6 f8N Ba6 Ne6 Bf8 f7 Bh3 Ngf6 Bg4 Ng7 Bh5 Ba7 Bb5 Qb4+ Rc5 Bb8+ Nc7 Ne6 Bg7 f8Q Qg4 Qc8 Bf8 Ng7 Qe6 Qf5 Qf7 Qe8 Qg8 Qeg6 Nc8 Qfg5 Nb6 Q5f5 Na4 Qfg5 Nc3 Q5f5 Ke7 d6+ Kd8 d5 Nb1 Ned4 Ne6 Ne5 Rc6 d7 Be2 Qfg5 Rd6 Bc7+ Ke7 d8R Rh6 Ra8 Rh8 Ra6 Ra2+ Qa4 Rc6 Ned7 Rb6 Rcd1 c1Q Bh2 Rc2 Qb4+ Rd6 Qd3 Rc5+ Qdb5 Rb6 d6+ Kf7 Qh6 Rf5 Q5c5 Rc6 Nd5 Rb6 Qf4 Kg6 Qe4 Kg5 Qd3 Kh4 Ra7 Qc2 Rc1 Qd1 Qe4+ Nf4 Qe8 Ne6 Qg6 Kh3 Nb8 Kh4 d7 Rd6 d8R Kh3 Bg4+ Kg2 Bf3+ Kf2 Nd7 Rb6 Rg1 Qf1 Rda8 Qg2 Rge1 Qh1 Qcc4 Nd8 Ra6 Rbf6 R8a7 Ne6 Qcc5
5B2/q1Q1Kb1r/r2N1BN1/n1b5/R1RRQ1nq/2pRRB1N/2r3Q1/2n1Nk2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 h4 g5 d4+ Ke4 f4 e5+ d6 a5 b4 c6 f6 a4 d5 g4 b6 g3 f7 g2 f5 a3 f6 a2 b7 Bh3 b5 Ra4 b6 Ra7 h6 Be7 f8B Rh7 h5 Bc8 f7 Qd7 Bg5 Ra6 Qa4+ Kf5 Nh3 g1R Bf6 e4 Bg2 Kg4 Nd2 Kg3 Bf3 e3 Qe4 Rg7 h7 e2 h8N e1N h6 Qe6 h7 Ra4 Ng6 Rf1 h8N Bd8 d7 Rh7 d6 Be7 d8R Qg4 Rh2 Rb4 Re2 Rb2 Re3 Qh4 Rc1 a1Q Rc4 Be6 Ra4 Nh6 Rc8 Bd8 d7 Rg1 Kd6 c5 Rc7 Nc6 b8Q c4 b7 c3 Qa8 Na5 b8Q Rc2 Rcc4 Bb6 d8R Nd3 Qc7 Ng4 Ke7+ Nge5 Rdd4 Nc1 Bg2+ Kh2 Nf3+ Kg3 Ne1+ Kh2 Qd7 Ng4 Bf3 Rgg2 Qc7+ Rg3 Nf2 Kg1 Nh3+ Kf1 Qab8 Rgg2 Rab4 Rgf2 Kd8 Nab3 Bc5 Rg7 f8R Qa7 Nf7 Ra2 Ke8 Nh2 Rd8 Ra6 Ra4 Nd2 Rh8 Rh7 Rdd3 Re2 Bd6 Bc5 Qb2 Bd5 Kd7 Ng4 Rd8 Ndb3 Bf8 Rf2 Ke8 Be6 R8d4 Na5 Nd6 Bf7+ Ke7 Rh2 Qb3 Ra2 Qc2 Rb2 Qh2 Rc2 Qg2+
4Q1q1/QQ2KR1Q/N1r3N1/qrRrb3/2bB1n1n/1p1Q2k1/R2BB2N/b1R5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 d4+ Ke4 a4 e5+ d6 b5 h4 g5 f4 g4 d5 g3 h6 b4 h5 b3 h7 g2 h6 c6 a6 Qh4 a7 Be7 f6 Bf8 a5 Kf5 a6 e4 f7 e3 Nc3 e2 Nf3 Kg4 f5 e1R f6 Ne7 d7 g1B+ Kd6 c5 d8Q c4 Bd2 Be3 Nb5 c3 Ra2 c2 Nh2+ Kg3 Qe8 c1Q Nc7 Bg5 Be2 Bg7 f8R Rg1 f7 Rg8 h8Q Nd7 h7 Rb8 a8Q Qa1 a7 Nb6 Qb7 B5f6 a8Q Qc4 Na6 Be6 Qaa7 Ng6 Qb1 Rg2 Rc1 Nh4 Qe4 Be5+ Ke7 Qac3 d6 Qa5 d7 Qc8 d8R Bc4 Rd6 Rf2 Rh6 Rf6 Rh5 Rc6 Qb1 Ba1 Rc5 Bge5 Qg7+ Qg4 h8B Qg6 Qh7 Nd5+ Kd7 Nf4 Ke7 Rd8 Qc2 Rd5 Bf6 Bb8 Bd4 Be5 Qd1 Qg4 Qdc2 Rg5 Qcd3+ Nf3 Rh8 Rf5 f8N Qg8 Ng6 Rg5 Qh5 Rf5 Rh7 Rg5 Rf7 Rf5 Qb1 Nh4 Qh7 Rd8 Bg4 Bc7 Rb5 Rfc5 Qe4 Be5 Be2 Rdd5 Qc2 Rb6 Qe4 Rcc6 Rc5 Rb5 Qd3+
2BQ2R1/4nqqq/bb1N3k/2QQ2NQ/r2N1Rp1/1KB1R1B1/2n4r/1NQ3b1 b - - 0 1 illegal: No possible last move, all moves rejected
K1B1RQ2/1B1Q1q2/1kRRbB2/1N1r3n/2np4/bB1b2nQ/1N3Q2/3q1rQN b - - 0 1 illegal: No possible last move, all moves rejected
7b/bN1QqbBB/q1Q2pn1/7K/n1RR1R1N/2rr3N/4RB2/Q2RNkn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kg4 g5 h4 a5 b4 a4 d4 a3 e4 a2 d6 Ke6 b6 f6 d7 c4 b7 c3 b5 c2 b6 Ra3 h6 Qe7 d8N+ Kd7 h7 Bg7 e6+ Kd6 d5 Kc5 h5 Rd3 h6 Kc4 d6 Bf8 d7 Kd4 e5 Ke4 Rh4 Rd4 Na3 Qg7 e7 Rd6 e8Q Qf7 e6 Be7 Be3 c1B Bf2 Rd5 Nc2 Bb2 Nh3 Qg6 Ne1 Bf8 e7 Na6 b8Q Bg7 b7 Bd4 Qa7 Nc5 b8R Qf7 Rb4 Na4 Nb7 Qe6+ Kh5+ g4+ Kg6 Qa6 d8R Be6 Rc4 Rd7 Rac1 a1Q Kh5 Qa3 Rb1 Rd6 Qc6+ Bd5 e8R+ Ne7 Qc1 Rg8 Qb2 Bh8 Rd1 Rd7 Qa1 Qd6 Ng2 Kf3 Bd3 Ng6 Re2 g3 Rg4 Qe7 Rge4 Bg7 h8B Bf7 h7 Rd6 Rd7 Rc8 Bb1 Bb6 Bc2 Rd3 Rdd4 Bf8 Bg7 Bc5 Qa8 Ba7 h8N Rc7 Qd7 Rc6 Ne3 g2 Qac8 g1N Ng2 Rb6 Qcc6 Rbb3 Be3 Kg3 Rf4 Rbc3 Bf2+ Kh2 Bb1 Kh1 Ne1+ Kh2 Nf3+ Kg2 Ne1+ Kf1 Bh6 Ne5+ Ng6 Bg7 Bc2 Bh8 Bg7 Bd5 Nh4 Ng6 Bb1 Bf7 Bc2 Rf3 Be4 Rfd3 Kg4 Nf8 Bh7 Ng6 Kh5
r1RR3Q/1b1Rk1r1/1p6/BN4R1/Q3N1Nn/1Qr1B3/1n2n1Bb/qNq2R1K b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 c5 h4 g5 a4 e5 f4 g4 Kf2 c4 Kg2 c3 d6 g3 h6 c2 f6 b6 h7 e4 a6 e3 h5 e2 a5 e1Q d5 Bg4 a7 Qe6 f5 Qee7 a6 Qe5 f7+ Kd7 f6 Qe1 h6 Qde7 Nh3 Bf5 Ra5 Qb4 Be3 c1R Ng5 Qd8 Ne4 Ne7 Qb3 Rg8 h8B Bg7 f8N+ Ke8 d7+ Kf7 d6+ Rc4 h7 Nd5 Ng6 Qa4 Ne5+ Kf8 f7 Ne7 Ng4 Qa1 Rg1 Qe8 d8R Be5 d7 Ng6 Kh1 Rg7 Bg2 Nh4 Rf1 Ke7 f8R Nc6 Rc8 Qf7 d8R Nb4 Rg8 Rc1 Rad5 Rc3 Rd3 Qc4 Rd2 Rb8 a8N Nd3 a7 Nb2 Nc7 Ra8 Nb5 Bd7 Rdd1 Bc6 R1d5 Bb7 Rdd1 Rb8 a8Q Bd6 Qaa4 Ra8 Rg1 Qf1 Rd4 Qc1 Rf1 Rg6 Be5 Rg7 h8Q Bc7 B5f4 Bd6 Bd2 Be5 Bfe3 Bb8 Bf3 g2+ Kg1 Bh2+ Kf2 g1N Bg2 Rc7 Ba5 Rh7 Rg5 Rc3 Rd3 Rg7 R3d6 Ne2 Rd4 Bc7 Rd2 Nf4 Kg1 Ne2+ Kh1 Bh2 R2d7#
3bQ3/2N2Q2/pk1Rr2r/1N1Q1R1b/BR1KB3/5qbB/N1R2BR1/3nr1qn b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 h5 f4 e5 b4 c5 g4 Kc7 f6 a6 f5 h4 g6 h3 g7 h2 f7 Qh4 g5 Bd6 f8Q Rh7 b6+ Kb7 b5 Qe1 f6 Rh3+ Nf3 Nc6 g6 Rg3 f7 Be7 d6 Bg5 d7 Rg2 d8N+ Kb8 b7 Kc7 b8Q+ Kd7 b6 Be7 b7 Bd6 Ra2 Rg3 Ne6 Nd4 Rg1 Kc6 Rg2 h1Q Nc3 Rh3 Rc2 Qh4 Nc7 Qh8 Na2 Bg4 Qbe8+ Kb6 Bb2 Ne7 g8B Nb5 g7 Qh5 Bd4 Rh2 Bf2 Qg1 Bh7 Nc3 g8B Nf5 Nd4 Ng3 Ndb5 Nh1 Be4 Be7 Kc4 Bd8 d4 Rb8 Qd2 Nd1 d5 Qf5 d6 Qf3 d7 Rh6 Qfe7 Bh5 f8R Ra8 Q7f7 Rc8 Ne6 Rc6 Nec7 Rcg6 Qdd5 Re6 Bg6 e4 b8R+ Ka5 Rb6 e3 Be4 e2 Rb7 e1B Rb8 Be7 d8R Bf6 Rd7 Bd8 Bd4 Bg3 Bf2 Ne3+ Kd3 c4+ Kd4 c3 Bgh7 Nd1 Bhf5 Bgh4 Bh3 Bg3 Bc4 Bg4 Bb3 Bh5 Re2 c2 Ba4 c1R Rc2 Rc6 Qh7 Rcd6 Rf5 Rde6 Qhf7 Rb1 Rb6 Rc1 Rbc6 Ra1 R6c4 Kb6 Rb4 Ne3 Rb3 Re1 Rb4 Nd1 Rd6+
N6n/1K1b1Rr1/p1Qk4/B3R3/1B1N1rRQ/RRbQ2qb/7n/qB1N2rB b - - 0 1 illegal: No possible last move
n1KR4/1NN1N1p1/B2Bn1B1/rrN1q1k1/2Q2B2/B2QbQ2/3R1R2/2q1rbb1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 f5 Kf4 a5 b4 c5 d4 c4 e4 c3 h4 c2 e6 Kf6 d6 a4 h6 a3 e5+ Kg6 d5 a2 b6 Nc6 d7 Rh7 b5 Ra5 d6 Ra7 b7 Nf6 b8B Nd4 b6 Ra3 b7 Ne8 e7 Ra4 e6 Rc4 Ke5 f4 h5+ Kg5 Nf3+ Kg4 Nbd2 Nc7 e8B Ne2 e7 Ng3 Nb3 Rd4 Ba3 c1Q Nc5 Qb2 Rh2 Qb4 Nh4+ f3 Rf2 Ne4 Qd3 Ng5 Nf5 Nd5 Bg6 Nf4 e8N Qa4 Rd1 a1B Ne7 Qda5 d8R Nd5 d7 Nb6 Bd6 Qc2 b8B Na8 Rdd2 Ba6 Nc7 Qc1 Qc4 Rh8 h7 Ne6 h6 Kg5 Be2 Rg8 h8Q Rf4+ Kd5 Bd4 Kc6 Be3 h7 Rf5 Bd3 Bb5+ Kb7 Qac3 Kc8 Qe5 Be4 Ba6+ Bb7 Bb5 Qd3 Bc4 Ba6 Bb5 Rh2 f2 Qc4 f1R Rhf2 Rg1 Ne4+ Kg4 Bdc5 Bc6 Re8 Rf1 Ned5 Bd6 d8Q Rg1 Nb5 Qg3 Ne7 Rgf8 Bcb4 R8f6 Qf8 Rh1 h8N Re1 Nf7 Rd5 Qd7 Rff5 Rd8 Be5 Nfd6 Rg5 Na7 Ra5 Nab5 Kh4 Nb7 Qf4 Ng3 Bg2 Qd3 Bf1 Ne4 Qf5 Qf6 Bh2 Bc5 Qd5 Qf3 Bg1 Bf4 Rh5 Bcb4 Qd6 Nc7 Rhb5 Bc5 Qe5 Bd6 Qf6 Bh2 Qe5 Nec5+ Kg5 Bf4+
QrB1qnNR/4bkp1/qQn1B1N1/2R5/2b5/1B4Q1/1KN2nrR/3Nr1BB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 Kc3 f5 b4 d5 e4 d4+ Kb2 a4 c4 f4 h4 f3 e6 f2 c6 d3 e5 d2 c5 Qg5 e7 Na6 h6 Qg4 h5 Qf5 h7 Qe4 b6 Qh4 h6 Qg5 b5 Nc7 b7 Na6 b8Q Qg4 c7 Qe2 c6 Qe4 b6 Qf4 b7 Qg4 Nc3 Kf7 e8N Bf5 c8B Bd3 c7 Bf5 e6+ Kg6 e7 Qh3 Bc4 f1N Qb3 d1R Nf6 Be4 Rh2 Qe3 Nge2 Bf3 Nd4 Nc5 Nc2 Ne6 Qb6 Nd2 Bb3 Re1 Nd1 Bd5 Q8a7 Bc4 b8Q Kf7 e8B+ Ke7 Qab7 Ne4 Bc6 Nf2 Bh1 Kf7 Q7c6 Ra5 Qca8 Ne7 Ng8 Nc6 Bd7 Be7 c8B Rd5 Qg3 Nf8 Bh3 Qe2 Be3 Rg5 Bc5 Qe6 Rc1 Qd7 Bf5 Qe8 Bh3 Ne4 Bg1 Nf2 Nf6 Rg8 h8R Rg4 h7 a3+ Kb1 a2+ Kb2 Be6 Na3 Rg6 Rc5 Bc4 Nc2 Rg4 Qf3 Rg2 Qg3 Qd8 Bhf5 Qe8 Qg5 Qd8 Bb7 Ne6 Qg3 Rf8 Rg8 Qd7 Bh3 Rb8 Bc8 Qe8 Bg4 Bd6 h8N+ Ke7 Qc3 Nf8 Ng6+ Kf7 Rgh8 Be7 Qg3 Bd8 Ka3 Be7 Ng8 a1Q+ Ba2 Qc3+ Bb3 Qa5+ Kb2 Qa6 Bge6+
1Rbk2r1/2Q1p2B/4nN2/qB1N4/2n1B1n1/RbbKB3/1NR1Q1QB/1r2qR2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 a5 f4 h5 b4 c5 g4 c4 d4 c3 g6 h4 b6 a4 b7 h3 g7 a3 d6 c2 d5 a2 d7+ Kf7 d6 h2 g5 Qe8 d8R Qa4 g6+ Kf6 b5 Qb4 d7 Qa4 b6 Ra6 Kd3 Rh4 Qe2 Rh8 Nf3 Ra8 Ne5 Qa5 Nc3 Rh6 Nc4 Qc5 Be3 c1Q Nb2 Nc6 b8B Rh7 b7 Nh6 g8B Qd6+ Bd5 Nd4 g7 Ng8 Be4 Nh6 g8B Qe6 Nd5+ Kg7 Re8 Rh8 d8Q Qb6 Bh7 Kf7 f6 Qe1 f5 Qba5 Qc7 Ne6 Rc1 a1N Rc2 Bg7 Rg8 Bf8 Rg3 Ke8 Qg2 Bg7 f7+ Kf8 Be2 Rg8 Rf1 Bc3 Rh3 Ng4 Rg3 Kg7 f8N Kf7 f6 h1B Nd7 Nb3 Rh3 Nd2 Rhf3 Ng7 Rh3 Ke6 f7 Nc4 f8Q Ra6 Rg3 Rb6 Qff2 Rb4 N7f6 Rb6 Na4 Rb1 Nb2 Kf7 B2f3 Ne6 Qe2 Nh2 Bh5+ Kf8 Be8 Ng4 Qh2 Bg2 Bb5 Bf3 Qeg2 Bd1 Qe2 Kf7 Qhg2 Kf8 Bba7 Kf7 b8R Kf8 Bad4 Kf7 Be5 Kf8 Rd2 Bb3 Rc2 Kf7 Rgf3 Kf8 Bh2 Kf7 Nd7+ Ke8 N7f6+ Kf8 Qa7 Ba4 Qc7 Be5 Bc1 Bd4 Bef5 Kf7 Ke4 Be5 Ra3 Bb3 Be3 Bc3 Kd3 Kf8 Nd7+ Kf7 Be4+ Ke8 Qb7 Kd8 N7f6 Rf8 Qa7 Rg8 Qc7+
QBr2RBn/1R2r3/1rk1N3/n1b1BK2/1N1B2NR/3r4/2pR3q/2Q1QRrb b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Ke4 a5 h4 g5 b4 e5 d4 a4 f4 c4 b6 a3 b7 g4 f6 a2 h6 g3 d6 g2 h7 c3 f5 c2 f7 Kc6 d7 Na6 b8R Nc7 h5 Ra4 b5+ Kd6 b6 Qe8 d8Q+ Kc6 h6 Ba3 f8N Rb4 f6 Bb7 f7 Rb3 d5+ Kc5 Nc3 Ne6 Be3+ Nd4 Ne6+ Kb4 f8R Nf3 Qc1 Bc6 b7 Nd2+ Kf5 e4 d6 Nc4 d7 Rb2 Nh3 g1R Bd4 e3 Qh4 e2 d8R e1R Nf2 Na5 Bc4 Qd7 Bb3 Qd6 Ng4 Qh2 Nd5+ Kb5 Nb4 Re2 Rb1 a1R Qhe1 Rg3 Rd7 Rd3 Rbd8 Bf3 b8B Ree3 Rf1 Bh1 Rg7 Re4 Rg5 Ree3 Rh5 Re2 Rh4 Ne7+ Kg5 Ng6 Kf5 Rg8 h8B Ree3 Bhg7 Nh8 h7 Re4 Bge5 Ree3 Na6 Kc6 Ba2 Rb6 Rb2 Nf7 h8Q Bc5 Rb1 Rg3 Rb2 Rg1 Rd7 Rg7 Qg8 Nh8 Nb4+ Kb5 Bd5 Raa3 Ba2 Re7 Rb3 Rc3 Rb7 Rc4 Rd3 Rb3 Rd2 Rd3 Nd8 Rcc3 Qd5 Rc4 Qg2 Rcc3 Bg8 Rc4 Ne6 Rcc3 Nd5 Kc6 Qge4 Rc4 Qf3 Rcc3 Nb4+ Kb5 Bh7 Bd6 Bg8 Rc8 Rd7 Bc5 Qa8 Nf7 Nd5 Nh8 Rb7 Kc6 Nb4+
5k1n/2N1np2/1K1b2QQ/Bb2N1N1/B2B1B2/1rq1RN2/R1bBb2R/r1b1Q3 b - - 0 1 illegal: No proof kernel
qB2N2R/2RQ1NN1/1nB1n1Q1/Rbr3BR/4p3/rBk5/1rQ2b1K/3n2nB b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb4 d6 e5 f6 c5 f7 h5 f5 a5 f6 a4 d5 a3 d7 a2 b6 e4 b7 c4 g6 h4+ Kh2 c3 g4 c2 d6 h3 g7 Nc6 b8R+ Qb6 d8N Ba6 g5 Bc4 d7 Rh6 g6 Be2 Nf3 Bc4 Rb7 Bb3 Nh4 Nb8 Bg2 Nc6 Nf5 Be6 Bg5 c1N Nd2 Rh4 Rc7 Nh6 g8B Nd3 g7 Qa7 Nc4 Nf2 Qc2 Bc5 f8R Rh5 f7 Rb8 Ncd6 Ne5 Ne8 Nc4 b3 Qa8 Bf3 Kb5 b4 Nd1 Bg2 Bf2 Bf3 Ka6 b5+ Ka5 b6 Kb4 b7 Nb6 Bg2 Bc4 Bf3 Rc8 b8B Rh4 Bh7 Ba6 g8B Bb5 Nfg7 Nf5 Bg6 Nd4 Bf5 Rh7 Be6 Rh8 Bd5 Ne6 Bc6 Rh7 Rf1 Rh6 Bh1 Rf6 Rg1 Rf3 Rg4 Rb3 Rh4 Rb1 Rh5 Rb2 Rb1 a1R Rc1 Ra7 Ra1 Ra6 Ra5 Ra7 Bh7 Ra6 Rh8 Ra7 Bg8 Ra6 Qe2 Kc3 f8Q Ra7 Qf5 Ra6 Ra2 Ra7 Nf7 Ra3 Rb7 Rc7 d8Q Rc8 Qd7 Rc7 Bd5 Rc5 Bc6 Bd4 Kg3 h2 Rc7 Bf2+ Kh3 Ne3 Qg6 Nd1 Bg2 h1N Kh2 Ng3 Bh1 Kb4 Qed3 Ne2 Qc2 Ng1 Ra1 Rab3 Ra5 Ra3 Nh6 Nd4 Bb3 Ne6 Qe2 Kc3 Nf7 Bd4 Qf2 Be3 Qe2 Bf2 Qc2+
n5qN/b1n2RbB/4Rr2/r1B3NN/b2bpkBQ/4n2K/Q7/2BBR1NQ b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 Kg3 a5 b4 e5 d4 h5 f6 c5 g6 c4 f7 a4 f5 a3 g7 h4+ Kh3 c3 g4 a2 b6 e4 b7 c2 f6 Ra7 b5 Bf5 b6 Qc7 Nc3 Be7 f8B Nc6 b8Q Be6 b7 Nd8 f7 Bf5 Nce2 Ra4 Qa8 Rh5 b8R Bg6 g5 Qb7 Ng3 Rh6 Be2 Nf6 g8B Qb5 Rb6+ Qc6 Bg4 Ne8 Bh7 Bh5 g6 Ne6 g7 N6c7 g8B Rf6 Rh2 Ra5 Rf2 Bg6 Qf3 Bf5 Qh1 Bd7 Rab1 a1B Rf5 Rc5 Qa2 Na8 Rf1 Nec7 Re1 Rb5 Ra6 Rc5 Rb7 Be8 Bd1 Bd7+ Bf5 Bc3 Bfg4 Ra5 Bh7 Ba1 Bg7 Qb6 f8N Ba4 Ng6 Bf8 Nh8 Qc6 Bgh6 Bg7 Bce3 c1B Rba7 Ne6 Rf7 Nec7 Bf2 Ba3 Bc1 Bc5 Ra7 Ne6 Rae7 Nec7 Re8 Qd7 Re5 Qe7 Bfe3 Ba7 Re6+ Kd7 d6 Bb2 d5 Bbd4 Rf8 Qf7 Bf2 Qg8 Rf7+ Kc8 d7+ Kb8 Kh2 h3 d8Q+ Kb7 d6 Kc6 d7+ Kc5 Qc2+ Kd5 Qe7 Rh6 Qh4 Rf6 Ra6 Ke5 d8N Rd6 Qa2 Rf6 Bb2 Kf4 Ne6+ Ke5 Ng5 Kf4 Re6 Be3 Qg2 Bed4 Kh1 h2 Bc1+ Be3 Qf1 Bd4 Kg2 h1N Kh3 Ba7 Nf5 Ng3 Qg2 Nf1 Ng3 Bd4 Qh1 Ba7 Bb2 Beb6 Bc5 Ne3 Bba3 Nb5 Bc1 Nbc7 Bf8 Bd4 Bfa3 Bc6 Bc5 Ba4 Nh5#
B1Q2rb1/7k/5Nq1/1nb1pn1n/1B1Q1RRN/8/r2R1N1Q/B1bBBbKQ b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 Kf2 Kg7 b4 c5 d4 a5 g4 h5 b6 e6 b7 h4 b5 a4 g6 c4 f6+ Kh6 d6 a3 d7 a2 d5 c3 g7 h3 g5+ Kg6 f5+ Kh7 d6 c2 b6 h2 f7 Be7 f8R Ra7 f6 Kg6 f7 Qc7 d8B Rh6 d7 Qc6 Nd2 Kh7 Nh3 Ra4 Be2 Rah4 Bb2 c1B Nf3 Kg6 Rg1 h1B Rg4 Nf6 g8N Nh7 Nf6 Kg7 g6 Bf4 Kg1 Bb4 Nf2 Na6 b8Q Bc1 b7 Bg2 Ba5 Bc5 d8Q Rh2 Q8d4 Bf1 Nh4 Nc7 Be1 Nb5 Qg3 e5 b8Q Be6 Qc8 Qb6 Rb1 Rh5 Ba1 Rf5 Rb2 Kh6 g7 Qd6 N6e4 Nf6 g8B Nh5 Rd2 Bd5 Bf3 Qg6 Nf6 Bdc4 Ba8 Be6 Bb2 a1N Bc3 Nc2 Ba1 Bd5 Qdf3 Ne3 Qh1 Rf4 Bh7 Nf5 Qgg2 Rh3 Qgh2 Ra3 Bg8 Ra2 Bh7 Qg7 Bg6 Nfd6 Bb1 Qg6 Bc2 Nf5 Bd1 Be6 Re8 Kg7 f8B+ Kh8 Bd6+ Bg8 Rf8 Rf3 N6e4 Kh7 Rf7+ Nfg7 Rf4 Nf5 Bf8 Rfa3 Bd6 Ra7 Bf8 Rf7 Bd6 Rf8 Be7 Bb6 Bb4 Bc5 Nf6+
1kB5/Rr1Q1KQR/3BQp2/5R2/2q1bn1b/B2Q2N1/1n3bRQ/Nrn1N2n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 g5 Kg4 c5 Kf5 Kc7+ e6 a5 d4 a4 e4 g4 h4 c4 b4 a3 b6+ Kb7 e5 c3 h6 f6 Kg6 g3 e7 g2 e8N c2 h5 a2 d6 Bf5+ Kf7 Be4 b5 Kc8 e6 Bd3 h7 Na6 e7 Kb7 d7 Bg7 h6 Ra7 d5 Qc8 d8Q Be2 d6 Ra8 d7 Nb8 Qd3 Bd1 Rh2 Bf8 Na3 Ra4 Nd6+ Ka8 e8Q Qc5 b7+ Ka7 Qe6 Na6 Nf3 g1N Nf5 Nb4 Rg2 Ne7 Ne1 Nh3 Ng3 Bf3 b8B+ Kb7 b6 Nf4 Be2 Qc4 Bd6 Be4 Bg4 Nf5 Qc7+ Ka8 b7+ Ka7 Bb2 c1N d8R Bg7 Rd7 Rb8 h8Q Ra5 h7 Rb5 Rb1 a1B Nac2 Bh6 Qg7 Bg5 h8R Bh4 Ba3 Bd4 Rh7 Bf2 Na1 Rb6 Re7 Rb5 Qd7 Rb6 Qc3 Nbd3 Rb5 Nb2 Rd5 Rb4 Qd3 Rb5 Nh1 Ng3 Rf5 Ngh5 Ng3 Rb3 Nf1 Ng3 Bh3 Nh1 Ng3 Rc8 Bg4 Rc7 b8Q+ Ka6 Qbh8 Kb7 Qh6 Ka7 Q8g7 Rcb7 Qh5 Bg5 Qh2 Bh4 Qc8 Rb5 Rc7 Rb4 Qd7 Kb8 Bh3 Nd1 Bg4 Rb1 Bh3 Nb2 Bg4 Rb5 Ra7+ Qc7 Qa2 Bf3 Rfh5 Bg1 Qe7 Rb7 Bc8 Bf2 Qd7 Bc6 Rf5 Be4 Bdb4 Qc2 Qe6 Qc4 Bd6+
2bB3Q/N6r/bBqp2QQ/1BQ2Nnb/1R1b3r/3r2N1/K1nR3R/3QB1k1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 e4+ Kg6 c4 h5 g4 a5 e6 f5 b6 a4+ Ka2 d6 b4 f4 b7 a3 b5 f3 c6 f2 e5 h4 c7 h3 c5 h2 c6 Na6 b8B Qe7 b6 Rh6 b7 Bg7 Ba7 Qf8 b8B Qf3 e7 Qc3 e8R Bd7 c8N Qd4 e6 Qf6 e7 Rh3 c7 Nh6 Nc3 Qd4 Bb6 Bh8 Bb5 f1B Nce2 Be5 Nf3 Rh5 Rb1 Nc5 Ng3 Ra4 Bd2 Nf7 Be1 Nd3 Na7 Qe4 c8Q Bd4 Qc5 Bc8 B8c7 Rh7 Rb4 Qc6 Bd8 Be2 Rh8 Ba6 Rg1 h1B e8Q Bg2 Qf8 Bh3 Rc4 Rb4 Rg2 Rb3 Rb4 Rc3 Bf2 Ne1 Rh2 Nc2 Be1 Rd3 Rf2 Be5 Nd4 Bf3 Ndf5 Bd4 Rd2 Rh4 Kb1 a2+ Kc1 Rc3 Kb2 a1R Rh7 Rb1+ Ka2 Re3 Rh8 Re7 Rh7 Rb3 Rh8 Rd3 Rh5 Ne5 Rh8 Reh7 Qh6+ Kf7 g6+ Ke6 g5 Nf7 Rb2 Bh5 g7+ Bf6 g6 Ng5 Rb4 Bd4 Ne7 Kf6 g8Q Bhc8 g7+ Bg6 Nd5+ Ke5 Ne7+ Kf4 Nef5 Bh5 Qe8 Re3 g8Q Rd3 Qa1 Kf3 Qgg6 Bf2 Qee5 Kg2 Qd1 Kg1 Qee8 Re7 Rh7 Bd4 Qh8 Rd7 Re7 Rb7 Ree2 Rh7 Rh2
1bb1qn1K/r2Qr3/1Q1pQ3/1Q2R2N/RnR3NB/1BnnB3/2N2R2/1r3Rk1 b - - 0 1 illegal: No possible last move, all moves rejected
bRQ3q1/2K1B2k/pQ1r3n/3b1NQ1/B2RnQ1B/1QN5/1bB2Rn1/br1N4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 Kg7 Kf4 h5 Ke5 c5 g4 e6 d4 h4 b4 h3 f4 a6 b6 h2 g6 c4 g5 c3 d6 c2 d5 Rh5 d7 Qe7 d8Q Qc7+ d6 Nh6 f6+ Kg8 b7 Qh7 g7 Qd3 f5 Qc4 d7 Qh4 b5 Qf2 b6 Rh3 f7+ Kh7 g8B+ Kh8 f6 Qd2 g6 Rd3 Bh7 Qb4 Ba3 c1N Ne2 Rf3 Qb3 Rf4 Nec3 Ra7 Nd1 Rg4 Ra2 Ne2 Nbc3 Nf4 Rf2 Qc4 Be7 Rg1 Kd6 e5 Bh3 Qe6+ Kc7 e4 Bg2 e3 Bc6 e2 Ba4 Re1 Rg1 h1B Rg4 Ng2 Rh4 Ng8 Rd4 Bg7 f8Q Rf1 f7 e1B Qfe8 Rg1 f8B Nh6 Bh4 Qg8 Qg5 Bd2 d8Q Be6 Qdf6 Bc1 Qff4 Bd5 Qc8 Nd7 Be7 Ra8 b8R Nc5 b7 Bb2 Qe6 Rf1 Qeb6 Bf6 Rf8 Re8 b8Q Rd8 Q8b7 Rd6 Rb8 Ne4 Qc8 Kg7 Bd8 Kf8 g7+ Kf7 Be7 Rg1 Ne3 Rb1 Ned1 Nd2 Qfe5 Ba1 Qd8 Be6 Rd5 Nf4 Na2 Qf8 Qe4 Bfb2 Rd4 Qh8 Qee5 Ba8 Bc2 Bed5 Nac3 Ne4 Qc8 Qe8 Qef6+ Kg8 Qf7+ Kh7 Qf8 Ng2 Qff4 Ng4 g8N Qf7 Nh6 Qg8 Nf5 Nh6 Qbb7 Nc5 Q7b5 Ne4 Qb6
2rNKRQb/2NNN1r1/p3nQ2/RRNB3B/8/6n1/1R1q2bb/1nBkbQ2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 c5 d4 h5 g4 a6 f4 c4 b4 h4 d6 h3 Kd5 c3 f6 Kg6 f5+ Kh7 b6 h2 d7 e4 Ke6 e3 Kf7 c2 g6+ Kh6 b7 Kg5 g7 Kf4 b5 Ke4 d5 e2 g5 e1B g6 Qb6 d8N Ba3 d6 Bh4 d7 Rh6 Ne6 Rh8 d8N Bd6 Nc3+ Ke5 Ra5 Ne7 g8B Rh6 g7 Rg6 Nge2 Nbc6 b8N Nd4 Nc7 Bb7 Na4 Ke4 Nf4 Nd5 Nc5+ Ke5 Be2 Bg3 Ke8 Be1 f7 Nc3 f8R Bg2 f6 Nb1 f7 Ne6 Nfd5 Kf5 Nbd7 Rc8 Rg1 h1N Bh5 Bh2 Qd4 Qc6 b6 Ng3 b7 Qd6 b8R Qf4 Rab5 Qd2 Ne7+ Kg5 Qb2 Kf4 Qf6+ Ke3 Rb2 Rg4 R8b5 Ke2 Rf1 Kd1 Rf3 Qf2 Ra3 Qe2 Raa5 Rg5 Bf3 Rg6 Bd5 Qd2 Bh7 Rg4 g8Q Rg7 Bg6 Qe3 Bd2 c1B Bh5+ Qe2 Bg5 Be3 Qf1 Bd4 Bc1 Rg5 Qg6 Bh8 Qgf6 Rg4 Rg8 Qf2 f8Q Qd2 Q8f7 Bf3 Rf8 Rg7 Bg6 Be4 Qg8 Bg2 Bh5+
2rR4/1K5b/2BQ1Brk/1R6/1b2Q1NN/1NR4q/2pBnQ2/QqnBb1bQ b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 Kg7 Kd4 h5 Kc5 e5+ d6 a5 d4 a4 f4 e4 b4 a3 g4 e3 b6 h4 f6+ Kg6 b5 c6 d5 h3 f7 e2 b7 e1B f5+ Kh7 f6 h2 b6 a2 Bb5 Ra5 Bd2 Qd7 Nf3 Qe7 Nh4 Bg7 f8Q Be6 f7 Ra7 Qe8 Ra8 f8Q Ra4 Qf2 Rf4 g6+ Kh6 Rf1 Qg5 d7 h1Q d8B Qh3 Bf6 Bf5 d6 Qf3 d7 Qe2 d8R Qh5 Qe4 Ne7 Nc3 Rf8 Nd5 Qf3 Rc1 a1B Ne3 Qg2 Rc3 Bh8 g7 Qf3 g8B Ng6 Bb3 Qh3 B5a4 Bb2 Qa1 Ne5 Bd1 Qg6 Kd6 c5 Kc7 c4 Bc6 Ba3 g5+ Kh7 Rg1 Bb4 Qh1 Bb1 Rg4 Qe4 g6+ Kh6 g7 Nd3 g8Q Nc1 Rg5 Rg4 Rb5 Rg6 Qe6 Qd3 Qee4 Bg7 Be8 Nc6 b8Q Nd4 b7 Nde2 Bc6 Re8 Kb6 Bgf8 Ka6 Bfc5 Qd6 Reg8 b8N Ba7 Rc2 c3 Kb7 Rh8 Na6 Re8 Ra8 Rc8 Nc5 Bb6 Rb2 Qc2 Rb3 Qa2 Rba3 Bc2 Nb3 Qb1 Rd5 Bd3 R8a5 c2 Rab5 Bc4 Rd3 Bg8 Rc3 Bd4 Ra8 Bh7 Rb8 Be5 Ra8 Bh2 Rb8 Bg1 Ra8 Rh8 Rd8 Rhg8 Rd7 Ra8 Rd8 Rc8 Ng4#
n3Q1bb/1B6/RB1Bbk1r/QN2N1q1/1R1Q2nr/1p1Q3R/1N3R2/K1b1qR2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 c5 Kc3 e5 Kb2 b5 f4 h5 a4 h4 g4 h3 f6 b4 f5 c4 a6 b3 a7 h2 d6 e4 d5 e3 d7 e2 d6 e1Q a5 Rh4 a6 Ne7 g6+ Kg8 f7+ Kg7 g5 Rh5 f6+ Kh8 g7+ Kh7 g8R Qe5+ Qd4 Qda5 d8B Qad5 d7 Qg2+ Be2 Ng6 Nc3 Ne7 Na4 Qg4 Bf3 Qc5 Bb6 Qh4 d8Q Bd7 Bf4 Nec6 Bd6 Qh3 g6+ Kh6 g7 Be7 f8R Kg5 f7 c3+ Kb1 Qd5 Nb2 Ne5 Rh8 Ng4 g8Q+ Kf5 Rh6 Qa5 Ra4 c2+ Ka1 c1B Qgh8 Qc5 Rb4 Rh4 Qe8 Qf1 Qd3+ Kg5 Qhd4 Be6 Ne2 Qg1 Nc3 Bf6 Nb5 Qe1 Rf1 Nd7 Rh7 Rb8 a8Q h1B a7 Bh8 Rh6 Qf5 Qad5 Rc8 a8R Rc6 Ra6 Qfe5 Rh5+ Kf6 Rh7 Rh2 Rh3 Bg2 Bbc7 Nb6 Q5c5 Na8 Qb6 Bd5 Qa5 Be6 Bb6 Bh1 Rg8 Rc4 f8N Bg2 Ng6 Bh1 Qd5 Qg5 Ne5 Re4 Q5d4 Rf4 Be2 Bhd5 Bf3 Rh1 Rg7 Bg8 Rc7 Bde6 Rc2 Rh2 Rcf2 Re4 Rg3 Rh6 Rh3 Nh2 Kb1 Reh4 Ka1 Ng4 Bb7+
q1B1BRb1/R1n2bQ1/n2Q1b1K/kq1R3p/N2R2Q1/4BN2/1N1R1r2/2b1Br2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kf4 c5 b4 Kc7 g4 Kb6 d4 f5 e4 h5 e6 c4 e7 a4 e8B c3 e5 a3 g6 c2 g7 a2 g5 Qc7 g6 Qc5 Kg5 f4 d6 f3 d7 f2 d8R Nf6 g8R Rh7 g7 Ng4 d5 Ba6 d6 Qc6 d7 Qb7 e6 Qc8 e7 Ra7 Rh2 Qc3 Bh3 f1B Rd2 Bb7 Nf3 Qc6 Nc3 Bg2 Na4+ Kc7 Rd5 Na6 Be3 Qd6 b6+ Kc6 Qg1 Bc8 b7 c1B b8Q Qg3 Qd6+ Kb7 b5 Nf6+ Bg4 Ra8 b6 Qe5+ Bf5 Bf1 Qg4 Bc4 Rh8 Rh6 g8Q Bg7 Qh7 Qb2 Rf8 Qb5 Rd2 Bh8 Qg7 Nd5 Rd4 Re6 Rd2 Re4 Kh6 Ndc7 Rd4 Bg8 Rd5 Kb8 b7 Rf4 Rd4 Ka7 b8B+ Kb7 Ba7 Bf7 Bb6 Bg8 Ba5 Ka7 Bc3 Bb7 Be1 Bbd5 Rb8 Bb3 d8R Bbf7 Bc8 Rf5 Rb6 Rb8 Rc6 Rb7 Rc5 Rb6 Q7g6 Bf6 Qg7 Rc6 Rcd5 Rc2 Nd2 Rf1 Nf3 Rcf2 Rd7 Ba3 Rad1 a1Q R1d2 Bc1 R4d3+ Ka8 R3d4 Ne6 Rb7 Nec7 Ra7+ Kb8 Nc3 Qa3 Rb7+ Ka8 Qdf4 Nc5 Bed7 Qab4 e8N Q4a5 Na4 Qa7 Nd6 N5a6 Nc4 Qb8 Qh2 Qa7 Qd6 Qb8 Rb6 Ka7 Ncb2 Qa8 Bc6 Nc5 Rb7+ Ka6 Be8+ Ka5 Ra7+ N5a6 Bf4 Qb7 Bg5 Qa8 Be3
1q1Q3Q/3p2n1/2N1q3/1RrBNQ1R/nB1KQ3/3n2bn/kR2r1B1/1N2NbQ1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 a5 f4 g5 h4 e5 b4 a4 c4 g4 f6 Ke6 c6 g3 c7 g2 h6 a3 c5 Kd5 h7 a2 h5 Ra5 c6 Bb7 c8B Be7 f7 Nh6 f8Q Ng8 b6 Qc7 f5 Ba8 b7 Nh6 b5 Ra4 f6 Kc5 b6 Kb4 f7 e4+ Kd4 e3 Nf3 g1Q Ne1 Qf2 Qd8 Qe2 f8Q Na6 b8N Bd6 b7 Ng4 h6 Nc5 Bg2 Bg3 Qf5 Nf2 Rh5 Re8 h8N Ra5 h7 Nh3 Ng6 Na4 h8Q Rc5 Ne5 Qa6 Qdg4 Kb3 Qge4 e2 Ba3 Qcb6 c7 Re6 Nc2 e1N Bb4 Nd3 Nbc6 Qaa7 Qdg5 Qb8 Ne1 Re8 Qge3 Kb2 Qg1 Qa6 Na7 Qe6 Nac6 Kb3 Nc3 Re7 Rc1 a1N Nb1 Ka2 Rc3 Qa7 b8R Nb3+ Ke3 Qb6 Bb7 Nd4 c8Q Qc7 Qcd8 Qcd6 Rc8 Qb8 Rb3 Re8 Ba6 Bb7 Bc4 Ba6 Bd5 Bc4 Rc7 Bb5 Rb7 Ba6 Rb5 Re7 Qff1 Nf5+ Kf3 Ng7 Ke3 Rf7 Kd4 Rf2 Qdf8 Rb2 Q1f5 Re2 Qd8 Ndf2 Bc4 Re3 Ra5 Bb5 Bd5 Bf1 Rb5 Nd3 Ba5 Re2 Bc3 Qc8 Bb4 Qb8 Rb2+
B1QBrQ2/NN3bnK/1RN1b1p1/2Nr1NR1/QR1n1p1b/8/5k2/qQ2Br2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Ke4 a5 b4 d6 c4 f6 h4 a4 h6 a3 h7 a2 b6 Ba6 b5 Bc8 b7 Qd7 c6 Ra3 b6 Rd3 h5 Qd8 c5 Rh3 c7 Ne7 c6 Rd3 h6 Ng6 Nd2 Qe8 Rb1 a1R Nb3 Nh4 Bg5 Rd2 Bg2 Ra3 Nc5+ Kf7 e6+ Kg6 e7 Kh5 Nf3 Kg4 Rg1 Kg3 Nd4 Na6 b8N Rda2 b7 Nf3 Rb6 Ne1 Qb1 Rd3 Nf5+ Kf2 e3 Rg8 h8Q Qd7 e8Q Rdd2 h7 d5+ Kf4 g6 e4 d4 e5 d3 e6 Qd5 e7 Bd7 c8N Ra1 c7 Nf3 Na7 Nd4 c8Q Qa2 Nbc6 Nc7 b8R Be6 Qed7 Bf7 e8N Be7 Ned6 Re8 Ndb7 Nce6+ Kg4 Qa6 Qf8 Ng7 h8B Rd1 Bd5 d2 Rg3 Rf1 Kh4 d1B Bd2 Ne2 Rg5 Bb3 Bh1 Nd4 Be1+ Ke2 Rb4 Bbe6 Rb6 Ra5 Bg2 Nc2 Qd4 Rb5 Qa4 Nd4 Rg3 Rb3 Nba5 Qb5 Nb4 Nc6 Nd6 Bc4 R6b7 Ne6 Be4 f5+ Bf6 f4 Nf5 Ng7 Kg5 Rc3 Kh6 Bce6 Kh7 Rd3 Bh1 Rd7 Bd5 Nd4 Bg2 Bd6 Bd8 Be7 Bc6 Bh4 Rg5 Rd5 Rd7 Nb3 Rd6 Nd4 Ba8 Kf3 Ra6 Ke2 Nbc6 Qb2 Rb4 Qa1 Nab7 Kf3 Rab6 Ke2 Bc3 Kf2 Be1+
1K1RNRn1/1NNq3Q/1p1pQ1r1/4R3/bbQb2Qn/4N3/rN5B/2kn2BB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 Ke4 h4 g5 c4 e5 a4 b6 f4 g4 h6 d6 c6 g3 c5 g2 f6 Qe8 f5 Be6 h5 Bg7 f7 Bf6 f8N Be7 f6 Bd7 h7 Qc8 f7 Bh4 a6 Ra7 h6 Qd8 a5 Ne7 Nd2+ Ke3 Qg4 e4 Nc4+ Kf2 Ne6 Ke1 f8R e3 Ne2 Kd1 Nc3+ Kc2 Na4 g1B Bg2 e2 Bf4 e1N Nab2 Be3 Bh2 Nd3 Rhe1 Ne5 Bh1 Bd2 Ne3+ Kb3 Re2 Ra8 a7 Qe8 a6 Qf7 Nd8 Qf4 Nb7 Rg8 h8B Bc3 h7 Nc4 Bd4 Qf7 h8Q Nc8 Qh7 Bf5 c7 Qg7 c6 Ne7 c8Q Bc2 c7 Bhe1 Qce6 Nd7 c8Q Nf5 Kc6 Nh4 Kc7 Bd1 Bc5 Bd4 Ra4 Bb4 Re1 Rb8 a8N Qf7 a7 Rg6 Ra1 Qf5 Re2 Nf6 Rd8 Bc2 Rf1 Ng8 Ree1 Kc3 Re2 Ba4 Rf3 Qh5 Rff8 Qf5 Re1 Na3 Qc4+ Kd2 Q8e6 Nc2 Rf1 Qh5 R1f5 Kc1 Re5 Qf5 Ned1 Bdc3 Bcg1 Bd4 Ne3 Qf7+ Qe7 Qe8 Qee6 Qb5 Rd7 Re8 Rd8 Qd7+ Kb8 Re7 Nc7 Rf7 a8N Rf2 Ne8 Rd2 Nf5 Rf2 Qb5 Ne3 Nac7 Nd1 Ne3 Rg2 Nbc4 Ra2 Nb2 Qg7 Qf1 Qd7 Qfc4+
B1NbR3/1N3pRB/K3bQr1/nR2N3/1BbQ1n1B/5qk1/pr3RnR/7Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Kd7 Kd2 c5 Kd3 a5 Kc4 h5 e4 h4 g4 a4 b4 h3 b6 h2 Kb5 a3 b7 c4 d6 Ke6 d7 a2 g6 c3 g7 c2 g5 Nh6 g8R Ra7 d5+ Ke7 d6+ Ke6 g6 Ng4 g7 Rh6 Nf3 Qe8 Qd4 Qe7 d8Q Rh7 d7 Ra4 Nc3 Rh3 Bg2 Qg5 Nd5 Ra7 Nb6 Nc6 b8B Rb7 Ka6 Rh6 b5 Qe3 Bd6 Qe1 Bb4 Nf2 Bg5 Qe2 Raf1 Ng4 Rf2 c1N Na8 Qb2 b6 Rc7+ b7 Bd6 Nb6 Bc5 Rg1 h1B Rh8 Be7 g8B Rg6 Rh2 Qc3 Bh7 Qb3 Qh8 Qe3 d8Q Bd7 b8R Rg7 Nc8 Rg6 Rb5 Rb7 Q8b6 Rb8 Qb7 Na5 Qa8 Bc6 Qg7 Bd5 Qf6+ Kd7 e6+ Kc7 e5 Ne2 Bd2 Nf4 Bb4 Bd8 e7 Bc4 e8R Qe2 e6 Ne3 Ne5 Qf3 e7 Rb7 Bf1 Bg2 Bd3 Bh3 Be4 Bhe6 Rg3 Neg2 Rg4 Qd3 Bf3 Rb8 Qae4 Rb7 Qe1 Rb8 Ba8 Qf3 Qh1 Nb3 Bh6 Nh3 Rf8 Bf1 Nd7 Na5 Bc3 Nc4 Rf5 Rb2 Bb4 Rg5 Rb5 Na5 Rg3 Bfc4 Rg4 Rd5 Rg7 Rg5 Rfg8 Rg6 Bg5 Nb7 e8N+ Kc6 Ned6 Kc7 Qc3 Na5 Nb7 Kc6 Ndc5 Kd5 Nd7+ Ke4 Qd2 Qb3 Re8 Nf4 Ne5 Qd1 Qe7 Kf5 Qd4 Qf3 Nd3+ Kg4 Ne5+ Kg3 Qed6 Bd7 Qf6 Bde6 Bh4+
1Bb1BK2/2prB1Nk/3R1n1n/3N1r1N/n3p1N1/4b1B1/bNq1R1QR/1Q1Q4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 Kg7 Ke4 h5 Ke5 a5 f4 h4 b4 h3 g4 h2 d4 e6 f6+ Kg6 f5+ Kh7 d6 a4 d7 a3 f7 a2 g6+ Kg7 g5 Ra6 b6 Rh7 b5 Rh5 d5 Qe7 d8B Rh8 b7 Qb4 d6 Ne7 d7 Ng8 b6 Nf6 Nh3 Bc5 f8N Nh7 f6+ Kg8 f7+ Kg7 Be7 Nf6 d8R Qb5 Nc3 Qb1 Nd5 Nh5 Nf2 Ng3 Nd7 Bb4 f8N Nh5 Nc5 Ra3 Ncd3 Qc2 Nb2 Qc6 Bf4 Ba5 Rd6 Qe8 Bg3 Qa4 Ng4 Qc2 Bb5 Bd2 Be8 Na6 b8B Rd3 b7 Be3 Rc1 Kg8 g7 a1N Re1 h1B Re2 Nf6 Rh2 Qc5 Rcc2 Nb3 Rce2 Rh7 Ng6 Rh5 Nh4 Bf3 Nf5 Kh7 g8N Nd4 Ng7 Nf5 g6+ Kh8 Ba7 Qc2 b8Q Nc5 Qb5 Na4 Bb8 Rd2 Qd3 Nh6+ Qf5 Nh7 N8f6 Rg5 Nfh5 Nf6 Reg2 Be2 Rf2 Bc4 Re2 Ne4 Nb4 Ba2 Nd5 Nec5 Kf6 e5 Qff1 e4 Qb1 Rd3 Qfd1 Nd7+ Ke6 Ng8 Kf7 Ndf6 Kf8 Nh6 Ne6 Rf5 g7+ Kh7 Ne5 Nf7 g8Q+ Kh6 Qg4 Kh7 Neg7 Nh6 Qf3 Rd2 Ng4 Rd4 Qg2 Rd2 Ndf4 Rd3 Rc6 Rd8 Rd6 Rd7 Nd5
bR1b2nB/1Q1KNB2/7Q/2q1rpbk/1B1n1R2/p3q3/BN1Q2r1/B1NR1Q2 b - - 0 1 illegal: No possible last move
RN1k4/1Qn1QrB1/2RB3N/qp5Q/r3n2r/Q2pq1N1/B2R1QB1/K1b2b2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Kc3 d5 Kb2 e5 h4 b5 c4 e4 a4 d4 f4 g4 c6 d3 c7 g3 c5 e3 f6 g2 c6 e2 h6 e1R a6 Be6 c8R Ba2 a5 Ra7 h7 Re6 f5 Bh6 c7 Rc6 f7+ Kd7 f8Q Bc4 f6 Qe7 f7 Bb3 h5 Qb4 Ne2 g1Q Ng3 Rc3 Rh2 Qf2+ Nd2 Qe1 Nf3 Qf4 Ne5+ Ke6 Nd7 Qfe3 Qe7+ Kd5 f8Q Kc6 Bg2+ Bd5 Qf2 Qe5 Bf4 Bf8 h6 Nf6 Qh5 Rb7 a7 Q1e3 a8Q Q5d4 a6 Qe1 a7 Qee3 Bd6 Na6 Nb8+ Kb6 Ra5 Qg5 Ka1 Qde3 Ra4 Ne4 Ra5 Rg8 h8B Rc4 h7 Bh6 Bg7 Rh8 Ra2 Ra4 Ra3 Rf8 h8N Rf4 Nf7 Rh4 Ra2 Qg4 Ra3 Bf4 Nh6 Qd7 Ra2 Qd8 Ra3 Be6 Ra2 Bh3 Ra3 Nec5 Bd5 Bf1 Ba2 Ne4 Rc3 Qg8 Re8 Qc4 c8Q Qb4 Rc2 Qa3 Qc3 Qb4 Qa3 Qa5 Rd2 Rc7 Qad5 Rd7 a8B Nc7 Bb7 Qc5 Rc2 Bc1 Qdf7 Qe3 Rd8 Nc5 Bg2 Ne4 Rh8 Rd8 Qfd5 Rf8 Rc6+ Kb7 Nd7 Rf6 Ra8 Rf7 Nb8 Kc8 Rh1 Be2 Rd1 Bf1 Rd2 Rf3 Qef7 Kd8 Qdc5 Rff4 Qb6 Rf3 Qb7 Rf5 Qe6 Rf7 Qe7+
2N1nnq1/b1N1k3/1Nb2Rrp/Q1R1nQ1q/B2Rr3/1p4N1/1B3K2/R1QBN3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 c5 a4 e5 g4 b5 f4 b4 f6 c4 d6 e4 f5 h6 d5 c3 a6 e3 a7 e2 d7+ Kf7 d6 c2 a5 Ba6 Kf2 e1N Bb2 c1Q Nf3 Rh7 Be2 Qdc7 d8R Ne7 d7 Ng8 Na3 Q1c4 Nb5 Q7f4 Qc1 Qd5 Rh5 Qfe5 Bd1 Bb7 a6 Ng2 Ne1 Ne7 g6+ Kg8 g5 Nec6 g7 Kf7 g8N Qde6 Ne7 Qa2 Nc7 Qb5 Ne8 Bg7 g6+ Kf8 f7 Be5 Nd6+ Kg7 f8R Qbd5 Rf6 Rh8 Ba4 Rg8 Bd1 Kh8 g7+ Kh7 Rg5 Ne3 Ba4 Re8 g8B+ Kh8 Bf7 Bd4 Bh5 Ne5 Bhd1 Qf7 Rh5 Kg7 Rg5+ Kf8 Rh5 Nbc6 Rg5 Rc8 a8N Ng6 a7 Nce5 Nb6 Bc6 a8N Qd5 Nc7 b3 Ne4 Ra8 Ng3 Ra6 Nec8 Qb5 Nd6 Ke7 Rg4 Qbd5 Rc8 Qg8 Rh4 Qdf7 Re4 Bc5 Rd4 Nd5 d8Q+ Kf8 Nd7+ Kg7 Re6 Ba8 Ncb5 Nc4 Nde4 Nf6 Qa5 Ba7 Rc5 Rd6 Nc7 Bc6 Nb6 Kf8 Ng5 Re7 N5e4 Ne8 f6 Nf4 Nf3 Qh5 f7 Ng6 Ne1 Qh1 Ree5 Qh5 Rf5 Rf6 Nd6 Re4 Rf3 Nce5 Rf4 Ke7 f8Q+ Kd8 Qf7 Nf8 Qe6 Rg6 Rf6 Qh3 Qg4 Ke7 Qf5 Qh5 Ndc8#
1B1k4/N3RQ1B/B3R2p/1Np2RQK/n2Rb1N1/qb2BB2/7n/1rqQ2br b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 a5 Kf3 c5 g4 f5 d4 a4 b4 h6 e4 f4 e6 a3 e7 a2 g6 Ba6 e5 Qb6 g7 Qg6 d6 Qg5 d5 Bc8 b6 Bb7 d7+ Kf7 d8R Na6 e8B+ Ke7 b5 Qf5 g5 Qc8 g6 Bc6 e6 Rh7 Kg4 f3 b7 f2 b8B Bb7 b6 Qc6 d6+ Kf6 e7 Qd5 d7 Qd6 Nf3 Qd4+ Kh5 Rh8 Nh2 Rh7 Be3 Qc3 Na3 Be4 b7 Nb4 Nb5 Nd5 Ng4+ Ke6 Be2 f1B Bf3 Bc4 Re1 Bb3 Rc1 a1Q Rc2 Qc1 Rf2 Rh8 Bf7+ Kf5 e8R Bd6 Re7 Nb6 Bc4 Bh2 Ree2 Ra1 Re6 Ne7 g8Q Bg1 g7 Nc6 Bd3 Na4 Qf7+ Qf6 g8B Ne5 Re1 Rh7 Re7 Rg7 Bde2 Rb1 Bh7+ Rg6 Ba7 Qa3 b8N Qc1 Nc6 Qa3 Bg2+ Nf3 Bb8 Qc1 Nca7 Qa3 Bef4 Nh2 Bgf3 Qc1 Be3 Qa3 Rc8 Qc1 d8Q Qa3 Qc4 Qfa1 Rcc7 Q1b2 Rcd7 Qd2 Rd4 Qdc1 Ne5 Kf6 Re6+ Kg7 Ng4 Kf7 Qg5 Rf6 Bh1 Kf8 Rf5 Kf7 Bhf3 Kf8 Rc6 Ke8 Rc7 Rd6 Re7+ Kd8 Qf7 Rd7 Nd6 Rb7 Bf1 Rb4 Ba6 Rc4 Re2 Rc2 Re1 Rf2 Re2 Rf1 Ndb5+ Bed5 Qf4 Bf2 Bd2 Rh1 R2e6 Be3 Qg5 Bg1 Bd6 Bb7 Be3 Be4 Bb8+
5kb1/2QR2bR/2p5/1NB1rRNp/1q1q2R1/1B4B1/rQBNQ1BK/n3nq2 b - - 0 1 illegal: No possible last move
6RQ/2Br1R2/BpBNR2b/5N2/1N3Q1q/p1nrQ1N1/qkR3b1/nn3RK1 b - - 0 1 illegal: No proof kernel
2RBb2k/r2R1n1p/1Q2rp2/R1bbNQ2/N2q1nQN/B5q1/2BB4/1K1Q1B2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 a5 b4 d5 e4 a4 g4 d4 c4 a3 Kc2 f6 e6 a2 g6 Ba6 e5 Qd7 e7 Ra7 g7 Kf7 e8B+ Ke7 e6 Qc8 c6 Ra8 b6 Qb7 c7 Qc8 b7 Ra7 g5 Nd7 b8B Nh6 g8N+ Kd6 c5+ Ke5 g6 Nb6 c6 Ra8 g7 Bb5 e7 Qd7 c8R+ Kf5 c7 Ra3 Nc3 Na8 Na4 Qe6 Bg6+ Ke5 e8Q Be7 Qc6 Ba6 b5 Bb7 b6 Qd6 Bd2 Nf7 Nh6 Re8 g8Q Ke6 Nf3 d3+ Kc1 Bf8 Nh4 Ke7 Ng4 Qg3 Qb5 Bd5 b7 Nb6 Ne5 Ke6 Be4 Bc5 Qgg4+ Ke7 Ba7 Kf8 Qf5 Kg8 b8B Kh8 Rg1 Nd7 Bb6 Nf8 Bba5 Ne6 Qb6 Nf4 Kb2 Qh2 Rg7 Qg3 Kc1 Nd8 Rd7 Nf7 Rb1 a1Q Bab4 Rb3 Ba3 Qd4 Ra1 Rb5 Ba7 Ra5 Kb1 Ra6 Qbe6 Ra5 Bb6 Ra7 Bba5 Ra8 Qb6 Ra7 Bdb4 d2 Bc2 Bf8 Qfg4 Re6 Be7 Qgc3 Bd8 Qg3 Qde2 d1B Bd2 Bb4 Qe1 Be2 Qd1 Bf8 Rb8 Bd3 c8Q Bg6 Qcc5 Bh5 Rc8 Be7 Qcb5 Bc5 Qd3 Nh6 Ra2 Be8 Qdf5 Nf7 Rb2 Nd3 Rb5 Nf4 Ra5
K1QqN3/1n1Nrnp1/R4B1N/6R1/B5Qq/bBbbRQ1p/2Q4Q/kr1R4 b - - 0 1 illegal: No proof kernel
QqR2R2/p1rQ1QN1/4BB2/2B1R2N/1q1pkb2/nr1n1NQK/1B5B/3b2r1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 h4 Kf6 b4 Ke5 f4+ Ke4 Kf2 e5 Kg2 g5 h6 d5 b6 d4 b5 g4 h7 g3 c6 Qf6 b7 Qe6 f6 Qg4 f5 Qg6 c7 Bh6 h5 Qf7 b6 Be6 c8R Bd2 c5 Ke3 h6 e4 c6 Qe8 f7 Qf8 c7 Qb4 f8B Qc3 f6 Qa3 f7 Qa4 Ne2 Qa5 Bb2 Bf5 Rh5 Qa2 Qb3+ Bc3 Bc5 Bd7 f8N Bc6 Ne6 Na6 b8Q Nf6 b7 Ne8 N2f4 Nb4 Rd5 Nd6 Nh5 Nb5 Kh3 g2 Bc4 g1R Neg7 Nd3 Nd2 Na3 Rf1 Ba4 Rff8 Qb1 Nf3 Bd2 Qa2 Rg8 h8Q Bd1 h7 Bc1 Ne6 R8g2 Neg7 Rc2 Qg8 Rc3 h8B Rb3 Qf7 Bd2 Qd7 Bc1 Rcd8 Bd2 c8Q Bc1 Qe5 Bd2 Qcc6 Rc8 b8B Rc7 Qa8 Bc1 Rc8 Bd2 Qf6 Bc1 Qff7 Bd2 Nf6 Kf4 Qa1 e3 Nfh5+ Ke4 Qa2 e2 Qg8 Rcb7 Bh2 e1Q Qgf7 Bf4 Qa1 Qa5 Qa2 R3b6 Qb3 Qb4 Qc3 Rc7 Qe1+ Be3 Qg3 Rbb7 Rd6 Bf4 Be6 Qa5 Rd5 Rb3 Nf5 Qb6 Bf6 Qb8 Nfg7 Qa2 Bc3 Qd2 Bb2 Qdb4 Re5#
3Q3N/RK2R2B/N3n1rk/B2rQqnb/1p4r1/1Q3p1Q/1b1Br2Q/B2R2N1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 f5 Ke3 Kf7 Kd4 g5 a4 Kg7 h4 b5 e4 f4 h6+ Kh7 h5 c6 a6 b4 e6 f3 e5 g4 a7 g3 a5 g2 a6 Bb7 e7 Qd7 Kc5 Qe8 Kb6 c5 d4 c4 d6 c3 e6 c2 d7 Nf6 d8Q Qa4 e8R Qa2 e7 Bc8 d5 Ng8 d6 Qf7 d7 Qg7 Nd2 Qc3 Ne4 Qd3 Bd2 c1R Qb3 Nc6 Nc5 Qf5 Bd3 Bb7 Be4 Rb8 a8Q Rd1 a7 Nd4 Na6 Rc8 Qb8 Rc3 a8Q Bd5 Qh2 Bf7 Kb7 Rcc1 Qac8 Nf6 Bd3 Ne6 Bc2 Kg8 h7+ Kg7 h6+ Kg6 Be4 Rg8 h8B Bg7 h7 Rc2 Bd3 Ne4 Ra3 Bh6 Ba1 N4g5 h8N+ Kh7 Ra5 Bh5 Be4 Bg7 Bd3 Kh6 Ra3 Qh3 Bh7 Bf6 Bdc3 Nc7 Ne2 g1R Nc5 Ne4 Ra7 Rdf1 Na6 Ng5 Be1 Rf2 Bd2 Rgg2 Rg1 Rc5 Rd1 Rg6 Ng1 Be5 Qb8 Qf5 Qh3 Na8 Qbc7 Bb2 Qch2 Rg3 Rg8 Rgg2 e8Q Re2 Rg7 Nc7 Qee5 Ne6 Re7 Rg3 Qa5 Rg4 d8B Rd5 Qac7 Rf6 Qd7 Rg6 Ba5 Ba3 Qc8 Bb2 Qd8
2rq1N2/3b1Q1K/N2QQ1n1/p3B1k1/bBR1rB1R/1B1R1bB1/1b1n1p2/2R1N3 b - - 0 1 illegal: No possible last move, all moves rejected
2BR3B/2k3b1/N1b1QrN1/p2R1p2/nrN1R2n/3Q3N/KBRR1Q1b/4q2b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 e4 f5 d4 c5 Kd2 a5 Kc2 h5 Kb2 h4 g4 h3 b6 c4 e6+ Kd6 e7 h2 e8R c3+ Ka2 c2 b7 Nh6 b5 Qd7 e5+ Kc7 e6 Bb4 g6 Bf8 d6+ Kb6 g5 Qc7 g7 Ra6 g8Q Ng4 d7 Ne5 d8R Bg7 g6 Rh7 e7 Nbc6 b8N Nf7 d5 Nh6 d6 Qd7 Qd3 Bb2 g7 Ba3 Qe6 Na7 g8N Bc5 Bb2 c1B Na3 Rf7 Nh3 B1e3 Rd1 Qb7 d7+ Bd6 Nc4+ Kc7 Rd2 Ng4 Bh8 Qe4 b6+ Kb7 Rg1 h1B Rgg2 Bh6 Rc2 Be5 Rgd2 Nb5 Bg2 Ra8 Na6 Rf6 Bf1 Bd6 Be2 Kc6 b7 Ne3 b8B Bg7 Ba7 Bb7 Bd4 Qh4 Bb2 Ng2 Qee3 Qe1 Qf2 Rb8 Bf1 Nh4 Be2 Ba8 Bf1 Na7 Bg2+ Kb5 Bb7 Bh2 Bc8 Kc6 Rf8 Nf3 e8Q Nh4 Qg6 Rb6 Rfe8 Rb4 Re4 Nb5 Qf7 Nd4 Qe8 Ne6 Qg6 Nc5 Ne7+ Kb5 Qf7 Na4 Qe6 Bd5 Ng6 Bc6 Rf8 Bg3 d8R Bh2 Ne3+ Kb6 Rd5 Rc4 Rfd8 Rb4 Nb8 Kc7 Nc4 Bd6 Ba6 Bg3 Bc8 Bh2 Na6#
B7/1b6/RB1rNqpR/1Q1Nk2N/4bb1b/1Q2B1RQ/QnN1pr2/2KQ1n2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 c4 Kf6 b4 e5 f4 a5 h4 d5 b6 d4 b7 e4 h6 g6 b5 a4 h7 d3 h5 a3 h6 a2 c6 Bc5 c7 Qf8 b6 Be6 c8Q Qf7 Ne2 Bf2 c5 Nd7 b8Q Qe8 c6 Ra5 c7 Bd5 b7 Ra4 Ng3 Ra7 Na3 Ra4 Rh3 Ra8 Nc2 Bb6 Bg2 Qd8 Nh5+ Ke7 f6+ Kd6 f5 Nc5 f7 Qe7 f8B Na4 f6 Nb2 f7 Bf2 Rg3 Ke5 Qh3 Qf6 Bc5 Ra6 f8N Rd6 c8N Ne7 Bb6 Nf5 Ne6 Rf8 h8Q Ne3 h7 Bc6 Qg8 Nf1+ Kc3 e3 h8R d2 Rh6 e2 Ne7 Be3 Nd5 Bf4 Qa7 Rf7 b8Q Bb7 Qa4 Rf8 Qb3 Rf7 Qbe8 Rf8 Qeb5 Rf7 Qe1 d1B Bce3 Rf8 Na3 Bc2 Qd1 Be4 Nc2 Nh2 Kd2 Nf1+ Kc1 Rf7 Rb1 a1B Qa8 Nc4 Qaa2 Bd4 Qdd3 Nb2 Qd1 Bc3 Ra1 Be1 Qb1 Rf8 Ra6 Bf2 Rf3 Bh4 Q1a2 Rc8 Rg3 Rc3 Bd2 Rf3 Bde3 Rf2 Nf8 Bf3 Ne6 Bc8 Ndb4+ Bd5 Nc5 Ba8 Bc6 Bf5 Nd5 Be4 Ne6 Bb7 Kb1 Bc8 Ba8 Bb7 Kc1
6Qn/NB2QQ2/3rp2b/2nB2r1/2bR2N1/1NR2qrk/1pr1RQR1/4BQ1K b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 c5 f4 g5 Kf2 b5 Kg2 g4 a4 c4 f6 c3 f5 e6 d6 g3 a6 b4 a5 c2 h6 b3 d5 b2 h5 Be7 f7 Bf8 f6 Qe8 a7 Nc6 a6 Bg7 f8Q Nd8 h7 Qg6 h6 Qe4+ Nf3 Qh4 f7 Qb4 Bc4 Qa4 Rg1 Bb7 Qe7+ Kc8 f8Q Qb5 d7+ Kc7 d6+ Kc6 Kh1 Rc8 a8B Rc7 a7 Nf6 Qf1 Qa4 Bd2 c1R Bd5+ Kc5 Ne5 Kd4 Ra3 R1c2 Ng4 Rc1 Rg2 Rd1 Be1 Rc2 Nd2 Ba6 Bab7 Bc4 a8Q Qc6 Qff7 Ne4 Rc3 Nc5 Qa7 Rg8 h8R Bf8 h7 Rg5 Rg8 Bh6 Re2 g2+ Kh2 g1R h8Q+ Re5 Rg5 Rg2+ Kh1 Rg3 Qhg8 Rf5 Rg6 Rg5 Q7f2+ Re3 Rg7 Nf7 d8N Nh8 Qff7 Rg3 d7 Re3 Nf6 Ke5 Nb3 Rf5 Rgg2 Rg5 Ref2 Rf3 Re2+ Kf5 Qb6 Qd6 Nc6 Qf4 d8R Rfg3 Na7 Qf3 Ne4+ Kg4 Nf2+ Kh4 Ng4 Kh3 Rd7 Na6 Qbf2 Nc5 Bdc6 Rd6 Be4 Rb6 Rd4 Rd6 Bed5
bb1R2nn/1QQ5/RpBNpr2/b1R3rB/2R5/2Q2q1B/N5b1/kNKRB3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Qf3 Kd7 Kd1 Kd6 d4 h5 a4 c5 g4 h4 g6 c4 g5 e6 a6 b6 a7 c3 a5 h3 a6 h2 g7 Ne7 g8R Bd7 g6 Rh5 g7 Qe8 f6 Qc8 f7 Nf5 Bd2 c2+ Kc1 Qd8 Ne2 Ba4 Bh3 Be8 Nec3 Qg5 Rd1 Qd8 Be1 Be7 f8Q h1B Qf7 Kc7 d6+ Kd7 d5 Kc8 d7+ Kc7 Qd3 Kd6 f4 Kc5 d6 Qc7 d8N Kb4 d7 Kb3 Nb7 Nd6 f5 Nc6 f6 Rc8 a8Q Rg5 a7 Bg2 Ra6 Bd8 Qe7 Nf7 Nd6 Nh8 f7 Qb7 f8R Bc7 Rf4 Bb8 Rc4 Rd8 Qf7 Ne7 Qdf3 Qd5 Na2+ Qd3 Rf8 Ng8 Qac6 Rc8 a8B Qc3 Q3f6 Qf3 Qe4 Rcc5 d8R Rcf5 Qc7 Bc6 Qa1 Rf4 Rf5 Bb7 Rfc5 Rf6 Qae5 Bd5 Bb7 Bc6 Bc8 Bb7 Bd7 Ba8 Qeb7 Rf7 Kd2 Rf6 Qe3+ Kb2 Bc6 Ka1 Qb3 Ne7 g8B c1B+ Kc2 Bf4 Bf7 Ng8 Bh5 Bd2 Qa3 Bc3 Kc1 Ba5 Qc3+
Nb1k1RNK/1Q1rRq1N/3Qp2p/5bBr/nRN5/2Bp1Bb1/1QQ5/2n3N1 b - - 0 1 illegal: No possible last move, all moves rejected
r7/1NRN1R2/1rNpBR1p/2NqQ2b/1b2nK1b/6Rp/1B1kQ3/R1n3QB b - - 0 1 illegal: Other
b3RK2/b4n1Q/pB2B1B1/2Qp1bN1/NR1p3r/1QQ1qN1n/2RNk1Q1/1r6 b - - 0 1 illegal: Other
1QB3B1/kQR1B1nb/p1p4r/2bRBqN1/1n6/1pKnN3/QN6/1Q1Qr1R1 b - - 0 1 illegal: No possible last move
n2B1R2/R1pp2R1/p1BR3r/3n1n2/Q1KQ2Nq/Q3N3/2NBrbN1/3b1Rk1 b - - 0 1 illegal: No possible last move, all moves rejected
Bn2b1Q1/4BRRB/3qNN2/k3rn1B/N2qNb2/p1R2Q2/1p1Q2pr/4KB2 b - - 0 1 illegal: No proof kernel
qBq1B2K/NnR1nR2/4kB2/bB2B3/4p1N1/b2NR1B1/NB4b1/5Qbn b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Na5 axb3 Nc6 b4 Nb8 b5 Ba6 Nf3 Bb7 Ng1 Bc8 h3 a5 Qa4 g5 Qd1 h5 Qf3 Ra6 Qd1 Rc6 Nf3 Rc4 Ng1 Rf4 h4 Rf5 gxf5 g4 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Ke2 e5 Ke3 c5 Ke4 g3 d4 h4 b4 h3 g6 a4 d6 a3 g7 g2 b6 h2 b5 a2 d5 c4 b7 c3 b6 c2 Ne2 g1B Bb2 c1Q Nbc3 Nc6 b8B Be3 b7 Bf2 Nf4 Nge7 g8B Qe8 Bb5 Bc5 Re1 h1N Nd3 Qd8 Re3 Bg7 f8N+ Ke8 Nh7 Kd7 f7 Qd2 f8R Bb6 f6 Qc7 f7 Qd8 Qf1 Bf6 Rc1 a1B Na2 Ng6 Kf5 e4 Bc7 Qe8 b8B Ne5 Rc3 Nf3 Kg6 Bg5 Kg7 Ba6 Kh8 Be7 Nf6+ Kc8 Ng4 Kd7 Bh7 Qc2 Bg6 Ba5 Rc4 Nd2 Bh5 Kc8 d7+ Kb7 d8B Kc8 d6 Kd7 Bg6 Ke6 d7 Ba3 Bce5 Ne7 Rc7 Nb3 Bh5 Nc5 Bg3 Nc6 Bdf6 Nb7 Bfe5 Ne7 d8N+ Kd5 Nc6 Ke6 Bf6 Qc5 Bbe5 Bd4 Na7 Qec6 Rfc8 Q5d5 f8B Qdd7 Re8 Qc8 B8g7 Bdb6 Rf8 Q6e8 Re2 Bg1 Re3 Qc6 Ba4 Bb5 Be8 Bc4 Rf7 Qa6 Nb5 Qa8 Na7 Bb5 Nb2 Be2 Bb5 Bf3 Nd3 Bg2 Bb2 Qd7 Bfe5 Qc8 Bgf6
1R1kqR2/1K6/3R2r1/q4RR1/NBRQN2n/r1pBBnp1/R2N3b/1n4N1 b - - 0 1 illegal: No possible last move
1N1q2Nb/4bpq1/1Nn5/5B2/NkRpR1N1/1b1rBN1p/Q1R2RB1/2N2K2 b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 h5 a4 a5 axb5 e5 fxe5 h4 g4 Ra7 h3 g5 Be3 Ra6 Bf4 Rah6 Bc1 Nc6 Qd2 Nce7 Qd1 Nf5 Na3 Rh5 Nb1 Ne3 gxh5 g4 Nd2 g3 Nb1 Ng4 hxg4 Rh6 Qd4 Rh7 Qd1 Rh8 c4 Ke7 b4 d5 e4 g2 b6 a4 h6 a3 h7 a2 b5 h3 e6 d4 g5 Qd7 c6 Kd6 b7 Kc5 b8N Qe8 b6 Nh6 e5 Kb4 g6 Bg7 c5 Qe7 c7 Qd7 e7 Rd8 h8R Qe6 e8N Bd7 c8N Bc6 b7 Bf3 c6 Ng4 c7 Nh6 Nd2 Bg4 Nd7 Bf8 b8N Ng8 g7 Qc6 e6 Bh5 e7 Bg6 Qb3+ Ka5 Ncb6 Rc8 Na4 Bf5 Ne2 g1B Nef6 Bg4 e8R Qc3 Re4 Be7 Ndb6 Qe3 Rh2 Qh6 Rf2 Be6 Ng4 Bh2 Bg2 Be5 Kf1 Qf6 Qb2 Bb3 Nf3 Kb4 Be3 Qg5 Rc1 a1Q Qa2 Qb1 Rf4 Qbg6 Rc2 Qd6 Re4 Qd8 Nc1 Qh6 N8d7 Ra8 c8B Qg6 Nc3 Ra3 Nca4 Be6 Rh4 B7d6 Nb8 Ne7 g8N Nc6 Ngh2 Be7 Rh5 Rd3 Ng4 Bh8 Rhc5 Bb3 Bf5 Qg7 R5c4+
4Bq2/R1rb2r1/1R1QqB1r/1R1qRR2/2n1Bn2/7R/b1kb2N1/KRB1N1N1 b - - 0 1 legal: proof: f4 c5 h4 e5 fxe5 g5 hxg5 b5 a4 c4 axb5 c3 dxc3 Nc6 c4 Nb8 c5 Bh6 Rh3 Bg7 Rh1 Bf8 Kd2 Ke7 Kc3 Ke6 e4 d5 b4 h5 Kb2 a5 c4 f5 g4 h4 c6 h3 b6 a4 c5 d4 b5 h2 c7 d3 c6 f4 g6 f3 b7 f2 b6 d2 g7 Rh5 g5 Qd4+ Nc3 Na6 b8N Nc5 g6 Qd5 b7 Qd8 Bg2 f1Q Nd7 Rh3 b8B Ba6 c8R Re3 c7 Nb3 Nd5 Qf2 Rb1 Rg3 Ne3 Nh6 g8R Nc5 g7 a3+ Ka1 a2 Ba7 Qg5 Rcb8 Nf7 c8R Bb5 Rc6+ Nd6 Rcb6 Nd3 Bf3 Qg6 Ng2 Nf4 R8b7 Be7 Rf8 Bg5 g8R Rc8 Rf5 Rc7 Ra8 Rh3 Bb8 Rh6 Raa7 Ba4 R6b5 Nc4 R5b6+ Bc6 R6b5 Qc5 R7b6 Qf8 Nc5+ Ke7 e6 Kd6 e7 Qe6 Qa4 d1Q e8R Qd3 Qb4 Qdd5 Rbb7 Bd7 e5+ Kc6 Be4 Na5 Kb2 a1R Nd3 Ra4 Qa3 Nc4+ Ka2 Ra6 Ka1 Rg6 Re7 Rg7 Re8 Ng6 Re7 Bd2 Re8 Nf4 Re7 Qd6 e6 Rb6 Re8 Ra6 e7 Qe6 Nb4+ Kd6 R5b6+ Kc5 Nd3+ Kd4 R1b5 Na5 Qd6 Kc3 Rb1 Kc2 R6b5 Rac6 R7b6 Rc8 Bc7 Nc4 Bd8 R8c7 Re5 Qh8 Rf8 Qhg8 Rff5 Qf8 e8B Rg8 Nh3 Rg7 Rf1 h1B Rf3 Qef6 Ng1 Q6e7 Qb4 Rh6 Qd6 Qee6 Rh3 Kc3 Nge1 Bf3 Bh4 Bd1 Ng2 Bb3 Bg5 Kc2 Bf6 Ba2 Nde1+
1Nrq1BN1/q4Q1N/Rbn1BB2/qbN5/2B1B1q1/2BRq1k1/3r4/nRB2K2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 g4 a5 d4 e5 b6 c5 b5 h5 b7 c4 b6 a4 g6 a3 g5 a2 f6 e4 f7 c3 g7 h4 f5 h3 f6 e3 g6 e2 Qb3 h2 Nh3 c2 Nf2 Be7 f8B Na6 b8B+ Nc7 b7 Ra5 f7 Qe8 Nd2 Ra3 Nde4+ Kd7 d6 Bf6 d5 Bd4 Ng4 Bb6 Bg2 Ne7 g8B Qd8 g7 Ne6 Nh6 Nc5 Rb1 a1Q Rf1 Ba7 Rf6 Ra2 Bc7 Nc6 Ba5 Bb6 Bc3 h1Q+ Kf2 Qc7 Qc4 Qd1 b8N+ Kd8 d7 Ba6 Rd6 Nb3+ Nc5 Bb5 Be4 e1Q+ Kg2 Qe3 Re6 Qh5 Kf1 Qa7 Rf6 Kc7 d8R Qg4 Rdd6 Nd8 Rf3 Qd2 Rd3 Nc6 Rg6 Rb2 Rf6 Q1a5 d6+ Kc8 d7+ Kc7 Re6 Na1 d8B+ Kc8 Bh4 Kc7 Rg6 Qdg5 Qb3 Qd8 Bhf6 Ra2 B8e7 Rb2 f8N Ra2 Be6 Rb2 g8B Ra2 B1b2 c1Q+ Qd1 Qcf4+ Qf3 Qe3 Bc1 Rd2 Bgf7 Rg8 Nh7 Re8 Ng8 Rf8 Bfd4 Re8 Bef6 Kd6 Bc4 Rf8 Bfe6 Rb2 Bh8 Rd2 Bb3 Rf7 B4f5 Ne5 Be4 Rc7 Bbc4 Rc8 Qf7 Bc7 Rh6 Nf3 Bdg7+ Nd4 Rf6 Ke5 B6f5 Kf4 Bf8 Kg3 Ra6 Bb6 Bf6 Nc6 Bfe6
3N2b1/2k2N1n/rnR2R2/2B1pr1Q/R3b3/1B1N2qr/q1NKNb2/1B2NR1N b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 h5 d4 e5 f4 c5 b6 a5 b7 c4 g6 c3 b5 h4 g5 a4 b6 c2 g7 a3 f6 a2 d6 h3 f7 h2 f5 Rh5 g6 Nf6 g8B Bh6 f8N+ Kc6 d5+ Kc5 d7 Kd6 g7 Ra6 Bd3 Ra7 Na3 Ne8 f6 Nc7 f7 Nb5 Ng6 Rh4 f8R Rh3 Nf3 Rh5 Rf6+ Kc5 d6 Kc6 Be3 c1Q Rf1 h1B Nc2 Ra5 Nf4 Na3 Bc5 Rh3 Ne2 Bg2 Bb3 Qf4 g8N Nc4 Ne7+ Kb5 Nf5 Kc6 Nfg3 Ra8 Nh1 Qg8 d8N+ Kd7 Rc1 a1R Nf7 R1a6 Ra1 Qfg4 Ra4 Be3 Bh7 Kc6 d7+ Qe6 Bd3 Qg5 d8N+ Kd7 Qd2 Bf2+ Kd1 Qg8 Nfe1 Qg3 Qh6 Be4 Qh5 Qd5 Ne6 Kc6 N6f4+ Be6 Kc1 Nd7 b8R Nf8 b7 Kd7 Rc8 Nh7 Rc6 Nb6 Kd2 Rf8 b8N+ Ke8 Ba2 Qb3 Bb1 Qa2 Bc4 B6d5 Nfd3 Be6 Ng5+ Kd8 Bb3 Bg8 Nf7+ Ke8 Rcd6 Ke7 Nc6+ Ke8 Rde6+ Kd7 Ncd8 Kc7 Rg6 Re8 Ref6 Re6 Rf3 Rf6 Rh6 Rf5 Rd6 Rg5 Rff6 Rf5 Rc6+
rB1R4/2n1K1B1/Bbknn3/bR2NNN1/1Q2n1p1/R3rqR1/3BR1bR/3R4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Kc4 e5 d4 g5 f4 a5 b4 a4 h4 g4 f6 a3 h6 a2 h5 e4 d6 e3 Kd5 c4 f5 e2 b6 e1B b7 c3 h7 c2 b5 Bc3 h6 Ba5 f7 Be1 b6 Ba5 f6 Ra7 Na3 Bc3 Bd2 c1N Nc4 Qc7 Qb3 Ra6 Ne3 Nc6 b8B Bg7 f8B Qd8 b7 Bb4 f7 Na7 Rh2 Rb6 Ba6 Bc5 Nh3 Qh4 Re2 Qg3 Nf5 Be5 Bg7 Bf6 f8R Nd3 Ng5 Nb2 Qb4 Bd8 Rfe8 Rc6 R8e3 Bcb6 Ra3 Bdc7 Rg1 a1N Rgg2 Qe3 Rg3 Qf3+ Ke5 Nf6 d5 Rg8 h8N Rc3 h7 Nb5 Nhf7 Nb3 h8R Ne4 Rh6 Re3 Rhh2 Nf2+ Kf6 N3d4 Rb3 Nc4 Ra3 Ne6 Ne5+ Kd8 d7 Ncd6 Ba7 Ba5 b8R Bcb6 Rb7 Nbc7 Bb8 Bd4 Rb5 Bb7 Rh5 Bdb6 Rh2 Na8 Ba7 Kc7 Ke7 Rc8 d8R Nfe4 Ng6 Nf7 d6+ Kc6 d7 Nfd6 Bb8 Nac7 Re8 Qg2 d8R Qf3 Reh8 Ba8 Rh1 Bb7 R8h2 Ba8 Rd1 Bb7 Ba7 Ra8 Bb8 Qf1 Rd5 Nc3 Bc4 Ba6 Ref2 Nce4 Bd3 Qh1 Bf1 Be2 Rfg2 Bf3 Ba6 Qf1 Re2 Bg2 Rb5 Qf3 Ne5#
K2Q1Bbn/B4k1R/2r5/1nb3r1/2pBNq2/N2N1n1b/n1R1B1B1/3BB1RN b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 c5 Ke3 a5 Ke4 e5 f4 h5 g4 a4 d4 h4 b4 a3 d6 h3 Kd5 a2 g6 h2 f6 e4 f7+ Kd7 b6 e3 f5 e2 b7 e1N f6 Rh6 b5 Ra6 g7 Ra4 g5 Rh4 b6 Rh6 g6 Ng2 Ne2 Ra5 Bb2 Rh4 Ng3 Rh6 Na3 Qc7 Be2 Nc6 b8B Rh3 b7 Rh4 Ba7 Ra6 b8N+ Kd8 d7 Be7 f8N Ne1 f7 Na5 Nh7 Qf4 f8B Bg5 Nf6 Rb6 Nc6+ Kc7 d8B+ Kb7 Nfe4 Be7 Nb4 Nc6 Nd3 Nh6 g8B Nf7 g7 Rg4 Bc3 Nf3 Be1 Ra6 Bdb6 Nh8 Rc1 a1N Rg1 h1B Rc2 Bg2 Nh1 Nb3 Bf7 c4 g8B Bc5 Bh5 Bf1 Be6 Rg2 Bh3 Nc1 Qd2 Rg6 Bg2 Na2 Qa5 Bd7 Bd1 Kc8 Bg4 Ng5 Bge2 Bh3 Qd2 Kd7 Qa5 Ke8 Qd2 Nd8 Qa5 Nde6 Kc6 Nf3 Kb7 Rg5 d5 Bf5 d6 Kf7 d7 Ned4 d8R Nb5 Ka8 Bh7 Qd2 Bg8 Rd7+ Be7 Bd4 Rc6 Rd5 Bc5 Qa5 Rgg6 Rh5 Rg5 Qd8 Nh4 Bgf3 Bh3 Bg2 Nf3 Rh7+
R1N1r2r/n2B1q1N/qB2Q2b/B6p/B3bnR1/k4N1b/2R2BB1/1K1R2bB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 Kd2 c5 Kc2 h5 g4 c4 g6 c3 b6 f4 b5 a4 g5 f3 d6+ Ke6 b7 a3 g7 f2 b6 a2 g6 Nc6 b8N Qh4 b7 Ra5 d7 Bd6 d8B Qg3 Na3 Qh3 Nc4 Qg2 Qe2 Qg5 Bg2 f1B Nd7 Ra6 b8R Ba3 Nf6 Qf4 Nd6 Qg4 Rb2 Ra7 Be3 Qf3 Nh7 Nce7 d5+ Kd7 Ba5 Bc5 Bf2 Qe3 Nf3 Bb7 Nc8 Nf5 d6 Kc6 d7 Nf6 g8B Ba8 d8B Nd5 e6 Re7 e5 Re8 g7 Nf4 e7 Nd6 e6 Nb5 Bdb6 Na7 Bf7 Qd4 g8R Qc4 Rg4 Bd4 Rd1 a1Q Qe3 Qa3 Kb1 Qcb3 Bg6 Kb5 Be4 Ka4 Qe1 Qd5 Rc2 Qad6 Rhh4 Ka3 Rg8 Qf5 Rhg4 Qf7 Bh1 Bh3 Qe2 Rf8 e8B Be3 B8c6 Re8 e7 Qd3 Bed5 Qa6 Bd7 Bd4 Qe6 Bc6 Bc4 Be4 Bf1 Be3 Bfg2 Bd4 Bh4 Bg1 Bhf2 Rd8 Nd6 Nd3 Rcd2 Rf8 Ba4 Rd8 e8B c2+ Ka1 c1B Bed7 Ra8 Rc2 Bh6 Kb1 Nf4 Rf8 Re8 Rfg8 Re7 Ra8 Ree8 Nc8
qN3b2/3r4/b1pB1nB1/1Q1r1N2/B2R2R1/p1BR2N1/bBKn2RB/kB5r b - - 0 1 illegal: No possible last move, all moves rejected
3qN3/B2k2Rn/nQNp1r1B/2p1b2B/2R3RN/R2r4/2n3B1/1bK1RRnR b - - 0 1 illegal: No proof kernel
r1R1NnBk/qR2p1B1/3p4/3B2Rp/1RK1R1pn/1r1RRb2/1b2QN2/1B4N1 b - - 0 1 illegal: No proof kernel
Q1N1BB1r/3p1rN1/2N3B1/BnRb1nR1/p4R1B/5k2/r3p1R1/RK2R1q1 b - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 g5 a4 f5 axb5 e6 e4 f4 h4 f3 hxg5 Nh6 g6 Ke7 g5 Ke8 g7 Bd6 g6 Bg3 fxg3 Ng8 g4 f2+ Kd2 Qe7 g5 Qf8 Bh3 f1N+ Ke1 Ng3 Bf1 Nf5 exf5 Qf6 Qe2 Qe7 Qd1 Qd8 Kd2 Ke7 c4 a5 Kc2 h5 b4 a4 c6 e5 c7 h4 b6 h3 c5 e4 f6+ Ke6 c6 Ke5 b7 e3 f7 Kf4 f8B h2 b5 Nh6 g8B Nf5 b6 Rh3 g7 Rg3 g6 Qg5 Nc3 Qg4 Bd2 Nh6 Nd5+ Ke4 Nf3 Qh4 Ba5 Ra7 Ng5+ Ke5 Kb1 Ra6 Nb4 Kf4 Ne6+ Ke4 Qf3+ Ke5 Bf7 Qd8 g8R Rg1 g7 Rg4 Bd3 e2 Bdg6 Ra8 Re1 h1R Be8 Na6 b8B Qh4 b7 Qg5 Ba7 Rb8 Bf2 Rf4 Bh4 Ra8 b8R Bb7 c8N Nf5 c7 Qg1 Qg2 Bf3 Nc6+ Ke4 Rb4+ Ke3 Rd4 Bd5 Rc4 Rf3 Rf4 Rhh3 Nb6 Rf2 c8R Nc7 Qh1 Nb5 Rc7 Bb3 Nc8 Bc4 Ncd4 Rff3 Rc5 Bd5 Nc6 Rf1 Rh8 Rb8 Rh5 Rb7 Rg5 Rf2 Bg3 Rh8 g8R Rf3 Ng7 Rb6 Nb4 Rf6 Bh4 Rf7 Nc6 Rf1 Rec1 Rd1 Qg2 Rd2 Re1 Ra2 N6a7 Bc4 Qa8 Bd5 Nc6 Nbd4 Rg2 Qf1 Nh5 Qh1 Bh7 Nb5 R8g5 Qf1 Bg6 Qg1 Re4+ Kf3 Ng7 Bc4 Reg4 Bd5 Rf4+
2b3N1/1r2Rrk1/1n2R1Bp/R1p1RB2/nN1b1B2/n1B2Q1p/K2R1R1N/2B5 b - - 0 1 illegal: Other
1KB2Bk1/Np1R1Q2/B1b2r1b/q1N1p3/NN1B1B2/qr3R2/1N1Rp3/3b1N2 b - - 0 1 illegal: Other
KN2n1R1/1BbR4/R3bB2/2BQ1Nnr/N4Nkb/1N2q3/nN1rn3/qB4B1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Ke4 a5 d4 e5 g4 h5 b4 a4 f4 h4 d6 a3 Kd5 h3 f6 h2 b6 c4 f7 c3 b5 e4 b7 a2 b6 c2 g6 e3 g7 e2 g5 e1Q f5 Qd2 g6 Q8g5 Nf3 Qgg2 f6 Qde2 Rg1 h1N Nc3 Be7 f8B Rh4 f7 Nf2 Be3 c1N Na4 Nh3 Nb2 Qh2 Nd2 Nf2 Bg2 Ncd3 Nb3 Nc6 b8N+ Kd8 b7 Qf1 d7 Bd6 Na6 Nce5 b8N Nh1 Nac5 Rh7 Nca4 Bc7 Bc5 Nc6 f8N Qh6 Bf2 Bd6 Ne6+ Ke7 d8R Kf6 Nf4 Kg5 Rd7 Ng3 Be4 Ne1 Bb1 Be5 Rg2 Ra5 Bg1 Nf3 Qd2 Bf6 Kd6 Rb5 Kc7 Kg4 d5 Nb4 d6 Bh4 Qd5 Nf6 g8B Ng5 g7 Rh8 Bf7 Rd8 g8N Ra5 Kb6 Ne8 Ne7 Qe6 Nf5 Qe3 Bg6 Rb5+ Ka7 Qfe1 Rf7 Be6 d7 Q1c3 Ka8 Qce5 Rd2 Ne2 Rf8 Q5c3 Rg8 Qc1 Be4 Qf1 Re1 a1B Bb1 Na2 Bf7 Rc8 d8B Rc7 Bf6 Rd7 Nbd3 Bd4 Ndb2 Be5 Bg6 Rd8 Be4 Bc7 Ra1 Nb4 Ra3 Qa1 Bb1 Na2 Bf7 Ng7 Be8 Rd6 Bc6 Ne8 Bb7 Rd8 Nc3 Rd6 Ra6 Ra5 Nca4 Rb5 Qe4 Rd3 Rd1 Rd2 Qd5 Nec3 Qh1 Rd7 Ba3 Ne2 Ng7 Nh3 Bae7 Rf5 Bc5 Rh5 Nf5+ Ng5 Rd5 Re7 Rd8 Rd7 Qc6 Rd6 Rd7 Rd2 Qd5
1rrQN3/nBB1b2B/R5nk/B3R3/1n3r1R/1Kn2N2/1R3RbB/rN1Rq3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 Kg7 f4 h5 d4 e5 Kd2 a5 Kc2 c5 b6 c4 b7 c3 b5 h4 d6 a4 d7 e4 b6 h3 d5 h2 f6+ Kg6 f5+ Kh7 f7 a3 f6 e3 d6 a2 g6+ Kh6 g7 Ra6 g5+ Kg6 Bg2 e2 Kb3 e1R Nf3 c2 Bd2 c1R Ba5 Be7 f8N+ Kh5 f7 Rc4 g6 Rc1 Nh7 Re6 f8R Bh4 Re1 h1N Re5+ Bg5 Nf6+ Kh6 Ne8 Nc6 b8R Na7 b7 Ne7 g8R Ng3 g7 Rf6 Qd2 Qc7 d8B Bh3 d7 Ne4 Bh1 Qc8 Bdc7 Ng6 d8R Rf4 Rd6 Qd7 Rdf6 Qe7 Qd8 Rc4 Rd6 Nc3 Rd1 Bg2 Rf6 Rh4 Rf4 Qe6 Rg4 Bf6 Rf8 Be7 g8B Rf4+ Red5 Rc4 Bh7 Qe1 Bh2 Rf4 Re5 Rc6 Rf6 Rc8 Ra6 Rhf8 Rd2 Rh3 Rf2 Rh5 Ra8 Rhf5 b8B Ra4 Bbc7 Rff4 Rb8 Rh8 Na3 Rg8 Rd1 a1N+ Kb2 Nc2 Kb3 Nb4 Nb1 Rgf8 Ng5 Bh3 Bb7 Bg2 Nf3 Ra1 Qd7 Bh1 Nd6 Ncb5 Ba8 Nbc6 Kb2 R8f6 Qd8 Bg2 Ne8 Nc3 Kc2 Rd6 Rb2 Nb4+ Kb3 Rb6 Bc6 Rbb8 Bd5 Qh1 Bb7 Qe1 Rh4+
3R1B2/1rqb4/3B1RnK/1N4BN/NR1R3n/brr1n2B/R1QB2k1/1nBr4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 Kg5 Ke5 f4+ Ke4 b4 c5 d4 e5+ f6 c4 h4 a4 h6 g6 b6 c3 f5 a3 b5 c2 h7 a2 d6 Ra4 d7 Rc4 h5 Bd6 d5 Nc6 b7 Be7 b8R Qa5 d8R Qc7 d6 Rc3 h6 Nb4 b6 Be6 b7 Re3 d7 Rd3 Nf3 Nd5 Nd4 Ba3 f7 Nc3 f8B Ne7 f6 Rg8 h8R Rg7 h7 Bh3 Bd2 c1R Kh6 g5 f7 g4 Nb5 g3 Qc2 Ng6 Bd6 Kf3 Rhf8 e4 h8N e3 Bg2+ Kf2 Rd1 e2 Bf1 Bg4 Bh3 g2 B6f4 g1N Bg5 Nh4 Ng6 e1R Nf4 Ngf3 Nh5 Ne5 Bgf4 Neg6 Bd6 Nd5 N1c3 Ne3 Na4 Rb1 Bf4 Rc3 Bc1+ Kf3 Rd4 Rd1 Bd6 Rbb3 Bb4 Rc4 Bbd2 Be6 Rg8 Rcc3 f8B Re7 Rg7 Kf2 Rf7+ Kg1 Rf6 Rf7 Rb1 a1N Ra8 Bg4 b8B Kh2 Rc8 Rg7 d8B Bd7 Rf2+ Kh1 Bg5 Kg1 Rf6 Kh1 Qa2 Nac2 Rd8 Rf7 Ba7 Kg1 Bac5 Re7 Bd6 Kh1 Bg4 Kg2 Ra6 Rf7 Bh3+ Kh1 Nb2 Bc5 Nd3 Qa7 Bb2 Rb4 Rc4 Be6 Qa4 Na3 Rcf4 Qb6 Rd4 Rb7 Bbc1 Qc7 Nb2 Bd7 Qc2 Kg1 Ra1 Nb1 R1a2 Rbb3 R6a4 Ba3 Rab4 Kh1 Na4 Kg1 Be6 Kg2 Bh3+
1Rq2RR1/r1nNQr1q/2N2R1b/1q1R4/b1pB2nN/2k1B1K1/R3B1NN/3n4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 Kd6 d4 c5 f4 a5 Kf2 g5 f6 e5 b6 g4 f7 a4 f5 a3 b5 a2 f6 c4 h6 e4 h5 e3+ Kg3 e2 b7 e1N h7 Be6 b6 Na6 b8R Qe8 b7 Bg7 f8R Qf7 h6 Qe8 f7 Qd7 Qe2 Nf6 Na3 Nc2 Be3 Bf5 Rg8 Qe7 f8R Ne1 Nc2 Bc8 Nf3 Nb4 Nh2 Ng2 Ne1 Bd7 Rg1 Ba4 Rh1 Nf4 Ng2 Nc2 Qe1 Qe6 Be2 Ra7 Rf1 Qc8 Rf3 Ne6 Qb4+ Kd7 d6 Kc6 d7 Kd5 d8N Nc7 Nc6 Ke4 Rf2 Kd5 Raf1 a1Q Qe7 Qb2 Ra1 Qb5 Ra2 Nd7 R2f6 Ne5 Bg1 Ke4 d5 Ne3 d6 Nd1 d7 Kd5 Be3 Ke4 Bf3+ Kd3 d8R+ Kc3 Rd5 Bc2 Kh4 g3 Be2 Ng4 Ne1 g2 Kg3 g1Q+ Ng2 Nb2 Ra8 Bf5 b8N Qb1 Nd7 Nd1 Rb8 Qd3 Re8 Be4 Rgf8 Rg8 h8N Bf3 h7 Bh6 Ng6 Rg7 h8B Rf7 N6h4 Qh7 Rg8 Be4 Rd8 Bc2 Rdf8 Ba4 Re6+ Kb3 Bb2 Kc2 Reg6 Kb3 Rf6 Kc2 Bbd4+ Kb3 Bc5 Kc3 Bcd4+
qBrkRRn1/b1bB1R2/N7/1B1B1nR1/KR1p2bB/R7/N2Qb3/r3q2N b - - 0 1 illegal: No possible last move, all moves rejected
B4R2/2b1RB1R/4ppN1/6BB/k4br1/rb1BRB2/n1q2NNQ/1n1R2Kn b - - 0 1 illegal: No proof kernel
1N6/R2Q1nrR/2r2k1B/Qr1q1B2/1qN2r1R/1qr3Rn/3BB1B1/K1B1B3 b - - 0 1 legal: proof: c4 e5 a4 g5 f4 d5 cxd5 b5 axb5 f5 g3 g4 fxe5 f4 h3 f3 Ra3 Bh6 Ra1 Bf4 gxf4 g3 Qc2 Nc6 Qd1 Bg4 hxg4 Nb8 e4 Kf7 d4 h5 Kd2 c5 Kc2 a5 b4 c4 Kb2 g2 b6 h4 b5 f2 d6 a4 f5 h3 d7 h2 g5 Ra6 g6+ Kg7 b7 Rd6 d5 Rh6 f6+ Kf8 f7 Kg7 f8B+ Kh8 b6 Qc7 d8Q Qh7 e6 Qf7 e5 Qf5 g7+ Kh7 e7 Kg6 e8B+ Qf7 e6 Nf6 g8R+ Kf5 e7 Re6 d6 Rh7 d7 Na6 b8R Rg7 b7 Nh5 Nf3 g1Q Nbd2 Rh6 Be2 f1R Nd4+ Kf6 Nc6 Nb4 Qa5 Qg4 d8B Rf4 Bd7 a3+ Kb1 c3 Bf5 Rhg6 Nc4 Nd3 Ka2 Ne5 Qd7 c2 e8B+ Qe7 Bf7 Qf3 Bd5 Nf7 Ra8 Qd3 b8B Qe3 Bb6 Qb4 Ra7 Rg3 Bd2 c1R Bg2 Qd3 Rb1 Qdb3+ Ka1 a2 Bf2 Rgc3 Bfe1 R1c2 Rh8 Rc1 Rg1 h1Q Rh7 R1c2 Bbd6 Rc1 Nb8 R1c2 Bgf1 Qd5 Rg3 Rc1 Ne5 Rc6 Nc4 Rc3 Rc1 Rh4 Bc7 Nf4 Bg2 Nh3 Bcf4 Rhg4 Bh6 Re4 Bc5 Rf4 Bce3 Q4a3 Bc5 Qb7 Bef2 Nhg5 Rh1 Qa4 Rh5 Nh3 Bfe1 Qbb5 Bb4 Qb6 Kb2 a1R Rh4 Qd1 Qb5 Ra5 Ba3 Qb3+ Ka1 Qb7 Qa4 Q7b4 Bac1 Rb5 Qa5
Q2nK3/N4Q1N/n5B1/R1N1Rb2/2NB4/N1Q3qb/N3nb1n/Nb2qQk1 b - - 0 1 illegal: No possible last move
BN1QR3/2R2nB1/2b2R2/5BbB/B4n1n/N1Rb1b1r/p2K4/b1Q2BkB b - - 0 1 legal: proof: d4 b5 g4 e5 f4 c5 fxe5 a5 dxc5 f5 a4 g5 axb5 f4 h3 Qf6 h4 Qf5 gxf5 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Bh6 Nc3 Bg7 Nb1 Bf8 c4 Kf7 b4 h5 e4 d5 c6 f3 e6+ Kg7 e5 d4 g6 a4 e7 d3 e8B f2+ Kd2 Kh6 e6 Kg5 e7 Kf4 b6 Kg3 f6 h4 b7 a3 c5 a2 b5 h3 f7 h2 c7 Rh3 g7 Rh6 b6 Rh3 c6 Rh4 Ne2+ Kf3 Na3 g3 Bb2 g2 Qc1 g1B Nd4+ Kg3 Rb1 Nf6 g8B Bg4 c8B Rh5 c7 Rh4 Ba4 Bg7 e8B Nh5 f8R Nf4 Bd5 Nc6 b8R Rh3 b7 Ne5 Nc6 Bf3 Bf5 Nf7 c8B Bh6 Bg7 Bg5 Ke3 d2 Rb3 d1N+ Kd2 Ne3 Rc3 Neg2 Bcd7 Nd6 Bh5 Nf7 Rbe8 Nh4 b8Q Nd6 Bfb5 Kg2 Qd8 f1B Rf6 Bd3 Nb8 Bd4 B7c6 Nf7 Ba8 Kf2 Rhe1 h1B R1e7 Bhg2 Bdb7 Bc6 Rc7 Bgf3 Rb3 Ba1 Rc3 Bc2 Bf1 Bd3 Rg6 Kg1 Rf6 Bcb5 Bbe4 Bc6 Bd5 Bfe2 Bdg2 Bef3 Bh1
2kbKQ2/bn1N1RbQ/3R4/Q3N2B/p1qnNN2/1NNr4/2NBQ1p1/b7 b - - 0 1 illegal: Other
bnN2Rq1/nb2rk2/n5R1/2R1B2p/2R2NBp/n2Q2RQ/2Q1R3/2KRQ3 b - - 0 1 illegal: Other
kR1r4/1RR1K1RQ/3nb1R1/1n3Qr1/qBnr4/1R1Rb3/B4N1b/1BB2N1r b - - 0 1 illegal: No possible last move, all moves rejected
2Rr2Br/6NB/1k2BK1b/2Bb1b2/1qq5/R3b1B1/RN1n2QR/1Bqn1Q1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 c5 Ke4 Kc7 b4 h5 g4 a5 d4 f6 b6+ Kb7 b5 c4 e6 c3 Kf5 h4 e4 h3 g6 h2 g5 c2 d6 a4 d5 a3 e5 a2 d7 Qe8 d8R Ra4 d6 Qe7 d7 Rah4 g7 R4h5 Bc4 Rh4 g6 Re4 Nf3 Rd4 Nh4 Rd2 Na3 Re2 Be3 Qf7 e7 c1B e8B Bd2 e6 Bdb4 e7 Rg2 Qd5+ Nc6 Bc5 Kb8 b7 Kc7 b8B+ Kb7 b6 Rg1 Bg3 Rd1 Bb3 Ka6 b7 Na5 b8R Bd2 Nc4 Be3 Nb2 Nc4 Ra8+ Kb5 Ra3 Nh6+ Ke4 Ng4 Kf5 Rd3 Bc2 Nf2 Qg2 Qg8 Bf7 Nd1 Ke6 Nd2 Nf5 Ba6 Rc8 Qh7 d8Q Qh4 g8B Qb4 Bh7 Bfh6 Rb1 a1Q Qf8 Rd8 g7 Bb7 g8B Be4 Ng7 f5 Ke5 f4 Be6 f3 Qf4 f2 Kf6 f1Q Qf5 Qfc4 Qff1 Qa2 Ra1 Qb1 R1a2 Qc1 Bb1 Bd3 Qgf2 Bf5 e8B+ Rd7 Bh5 Rd3 Bf3 Rd8 Rg1 h1B Rg2 Qc2 Rh2 Qc1 Bh5 Bb7 Bf3 Bbe4 Bh1 Bd5 Bf8 Kb6 Q2g2 Bh3 Bfd6 Bf5 Bc5+
B1K3Rb/5Bn1/2NqRB2/B1Q1B3/3rQB1r/rR2q1RB/1r2k2N/nb1b4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 g4 a5 f4 a4 b4+ Kb6 d4 c5 f6 a3 f7 e6 f5 h4 f6 a2 g6 c4 g5 h3 g7 h2 d6 c3 d5 c2 d7 Rh6 g6 Qe7 d8B+ Qc7+ d6 Ra4 Nf3 Bb7 Qd3 Ba8 Na3 Rh8 Nc4+ Kb7 b6 Ka6 b5+ Kb7 Qe4+ Qc6 d7 Nh6 g8B Na6 g7 Nf5 Bh3 Nb4 Re1 h1B Bf4 c1Q Nh2 Qe3 Rad1 a1R Rd3 Be7 f8Q Bf3 Bf7 R1a3 g8B Ng7 Re2 Nc2 Na5+ Kb8 b7 Ka7 b8R Na1 b6+ Ka6 b7 Kb5 Bb6 Rh4 d8B Rd4 Bh7 Qd7 Nc6 Kc4 Ba5 Bg4 Re1 Bd1 Bhg6 Bc5 Bh5 Bb4 Bf3 Qe7 Rb3 Bc3 Rg1 Bb2 Rb6 Qb4 Rg3 Kc3 Qe7 Kd2 Qc5 Bc3 Bfg2 Ke2 Be7 Bb2 Rg8 Bc3 b8R Bb7 Rbe8 Ba6 Rb7 Bd3 Rbb8 Qb6 Bh1 Qa6 Rb3 Bb1 Bed8 Rda4+ Kd6 e5 Kd7 Rd4+ Kc7 Qd3 Re6 Qd2 Qf5 e4 Kc8 Bb2 Bdc7 Qb4 Bce5 Qb6 Nd8 Qd6 Nc6 Rb4 Nd4+ Kd2 Bh5 Ne8 f7 Ke1 f8B Qf3 Rd3 e3 Beg7 e2 Rc3 Qe3 Be7 Kf2 Rd3 e1R Rb3 Re2 Bf7 Bc3 Bd5 Rb2 Ba8 Rc4 Nc6 Ke2 Beg5 Be5 Qe4 Rd4 B7h6 Bg7 Be5 Bh8 Bgf6 Ng7 Bhf4
1R3R1B/3Q1nN1/r2b1N1N/4rq2/2kNR1QR/N5rq/N1b1n1n1/K3N1rB b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 Kd6 d4 c5 Kd2 a5 Kc2 e5 Kb2 g5 f4 c4 f6 g4 f5 a4 h6 g3 b6 g2 h7 e4 f7 e3 h5 e2 h6 e1R f6 Re5 b5 Rf5 b7 Bg7 f8R Ne7 b6 Nd7 b8R Nc6 b7 Rf3 f7 Qe7 Na3 Nd8 Rh4 Rf4 Qg4 Nf6 Nf3 g1N Ne1 Qe8 Bg2 Ne6 Bh1 Rg8 h8N Rf1 h7 c3+ Kb1 Ne4 Bb2 Kc7 d6+ Kb6 d7 N4g5 d8N Rf5 d5 Kc5 d6 Nf4 d7 Ng2 Nc6 Qe5 d8N Ne2 Nd4 Ra6 N8c6 c2+ Ka2 c1R Nb4 Rc3 Rc1 Be6+ Ka1 Bb3 Na2 Bc2 Rb1 Qf6 Rbe8 Qg6 b8N Rg3 Re4 Be5 Nd7+ Kd5 Bc3 Bd6 Rbb8 Re5 Nf6+ Kc5 Rfe8 Qh5 f8N Nf7 Qd7 Qf5 Red8 Ng5 Nf7 Rg7 Nh6 Nf7 h8Q Rg8 Nb1 a3 Nfe6+ Kc4 Rf8 R8g7 Qg8 R7g4 Nc1 a2 Ng7 Rf4 Nb5+ Nd4 Nh7 Re8 Kb2 Bd3 Ne6 Ne3 Rg4 Rf1 Rh4 Rfg1 Qg6 Re7 Qg4 Re8 Ba5 Re7 Bd8 Re8 Bf6 Re7 Bh8 Re8 Ng7 Re5 Rf4 Be4 Nf6 Bd3 Qd1 Qh3 Qh5 Ng2 Qg5 Be4 Qgg4 Ne2 Nd4 Rd3 Kc2 a1Q Na2 Bf5 Nac3 Qa4+ Kb2 Rg3 Na2 Qc2+ Ka1 Qe4 Rfd8 Qf3 Rf8 Bc2 Re4 Qf5 Na3+
Rn2R2Q/BQp1Bk2/1RR3N1/r1R4r/q3q2r/B1RN3B/bq5b/2Rn1K2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 a5 h4 e5 d4 g5 b4 e4 d6 g4 d5 g3 b6 a4 h6 a3 b7 g2 h5 e3 h7 a2 h6 e2 f6 Ra4 d7+ Kf7 f5 Bd6 b5 Rb4 b6 Qe7 d8B Rf4 Nc3 Qe5 Ne4 Nd7 b8B Qd4 b7 Nc5 Nh3 g1Q Nef2 Re4 Nf4 Kf8 f7 Qdg7 Rh5 Qf6 N2d3 Re7 Ba7 Be5 b8R Qd4 Bh3 Qa4 Qb3 Qg5 d6 Qg2 Qb4 Qac6 Ra8 Nf6 Qb7 Ng8 Bb2 Bd7 Rc1 Bc8 Rc3 a1R+ Bc1 Qh2 d7 Nf6 Rg5 Ra5 Ba3 Ne8 Rg1 Rg8 h8R Qa4 h7 Nf6 Rf1 Kg7 f8R Ng4 Rf6 Ne3 Rb6 Na6 f6+ Kf8 f7 Nb8 Rg1 Bd6 Rh1 Re4 Be7+ Kg7 d8Q Be6 f8R Ba2 Rf6 Qg2 Rg6+ Kf7 Re6 Be5 Rec6 Rg5 Ng6 Bh2 Rg8 Rf4 h8R Rh4 Rh5 Qge4 Kf2 Rgd5 Rhc1 Nd1+ Ke1 Rdb5 Rg5 Qeb4 Qd4 Qb2 Qh8 Rc5 Re8 Rd5 Rg4 Rdh5 Rgc4 Ne3 Kf2 e1Q+ Kf3 Nd1 R4c5 Qa1 Kg2 Qee4+ Kf1 Qb1 R3c4 Qb2 R4c3
rr1BRR2/4n2q/1NQr2R1/4krR1/Bn1B1R2/Qb1B4/Rp2Kb1N/rR6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 Kd6 a4 g5 f4 c5 a6 b5 a7 e5 h6 c4 h5 g4 a5 g3 a6 g2 h7 e4 h6 e3 f6 e2 f7 b4 f5 c3 f6 c2 Na3 b3 Nf3 g1R Ra2 b2 Qd3 Rg3 Nh2 Rf3 Be3 Be6 Nc4+ Kc7 d6+ Kd7 d5 Qb6 Qa3 Qb3 Bd4 Rc3 Nb6+ Kd8 d7 Kc7 d8R Bf5 d6+ Kc6 d7 Bg4 Re8 Qc4 d8B Be7 f8R Be6 f7 c1R+ Kf2 e1R Bd3 Rg1 Ke2 Rg6 Rf1 Ra1 Rb1 Nf6 Rg8 Nd5 f8R Bh4 Rf4 Bf2 Rg7 Rg8 h8R Nb4 h7 Kd6 Ref8 Rg5 Rg6 Qc7 Re8 Rf8 Rhg8 Nc6 h8R Qh7 R8g7 Rb8 a8Q Rgf5 a7 Ne7 Rg5 Rcc8 R7g6 R8f6 Rhf8 Bb3 Qh1 Ke6 a8B Kd6 Bc6 Ke6 Bc5 Ke5 Ba4 Rd6 Qc6 Ra8 Be3 Rcb8 Bd4+
1RK3N1/q1n3N1/1R1Q3b/1B1RrN2/Q4n2/3NB1pN/r2n1r1r/NN1bRk2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 h4 g5 d4+ Ke4 f4 e5+ d6 a5 b4 c6 f6 a4 d5 g4 b6 g3 f7 a3 h6 a2 h7 Bd7 b7 Ra3 b5 Bg7 f8N Ne7 b6 Rb3 h5 Bc8 f5 Ng8 f6 Rb2 d7 Rf2 Kd6 c5 h6 c4 f7 c3 Rh2 c2 Be3 c1R Nh3 Qh4 d8Q Rf6+ Ne6 Ne7 f8N Bd7 Bb5 Nbc6 Kc7 Na7+ Nc5+ Kf5 b8R e4 d6 Qf4 b7 Qf3 Ne6 Kg4 Nd4 Be6 d7 Bf7 Nc2 Bb3 Nd3 Ng6 Re2 Qf2 Qf8 Kf3 d8N Kg2 Ne6 Rf3 Qd6 Nf4 Kd7 Re8 h8N Ba4 h7 Bh6 Ng7 Re5 Nf7 Bb3 Bd4 e3 h8N Ba4 Ng6 Bb3 Qd2 Rh1 Nh4+ Kf1 Qa5 Rh2 Nhf5 Qg1 Rd8 Rff2 b8R Ba4 Rb6 Bb3 Rdb8 Ba4 Bc6 Nb5 Kc8 Nc7 Bb5 Bb3 Rd2 e2 Qa4 e1N Re2 Nf3 Be3 Bg5 N7h6 Nd2 Ng8 Bh6 Ncd4 Bc2 Nb3 Bd1 Na3 Ng6 Rc1 a1R Nb1 Nf4 Rc5 Ra2 Rd5 Qh1 Na1 Qf3 Rc5 Qa8 Rd5 Qa7 Re1+
1B2Bk1r/bpN1Qb1Q/1r2Q3/6K1/Rqn1B2n/r4BN1/B4b2/rQ2B1RB b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 h5 Ke3 c5 Kf4 f5 e4 c4 d4 c3 g4 h4 a4 c2 a6 h3 a5 h2 e6 Rh7 e5 Rg7 a7 Nf6 a6 Qd6 g6 Qc5 g5 Qa5 d6 Rc7 d5 Bd7 g7 Bc8 g8B Bd7 g6 Qe1 g7 Rc5 e7 Qe4+ Kg5 f4 Bg2 f3 Ne2 f2 Na3 f1R Bd2 c1B Ng3 Rg1 Nb5 Bh3 Bf3 Rc6 Ra4 Ng4 Bh7 Qe2 g8B Rc4 Bhe4 Nc6 Nc7+ Kd7 e8B+ Kd8 d7 Ke7 e6 Bg7 d8B+ Kf8 d6 Bf1 d7 Ne3 Be1 Na5 Qc2 Bh8 Qb1 Qb2 Bgf7 Rc6 e7+ Kg7 Bc4 Qb4 Ba2 Nac4 Beh5 Ba3 e8B Kf8 Bhf7 Bc3 Bfd5 Nf5 Bf6 Bd3 d8Q Nh4 Be5 Rb6 Bdc6 Rf1 Rg1 h1R Qd5 Rh2 Qe6 Bd4 Bf4 Rh3 Bh1 Rb8 a8Q Bf2 a7 Rd8 Bef3 Bg6 Bce4 Bf7 Be5 Rd3 Qd8 Bc1+ Bf4 Bce3 a8Q Ra3 Qa5 Bd4 Qaf5 Bc5 Qh7 Bce3 Bd2 Rd1 Be1 Bd4 Qd3 Ra1 Qb1 Ra6 Qh5 Nf5 Nd5 Ba7 Bb8 Rb6 Nc7 Rh2 Qhg6 Rh8 Qh7 Nh4 Qde7+
Qq1Q4/4p2R/b2NBbn1/1p1R1K1Q/Q4Q1r/b2N2R1/rQpQR3/5nBk b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 a4 b5 d4 g6 h4 c4 a6 c3 h6 c2 h7 Bb7 d6 Bg7 h5 Bc6 d7 Bd5 h6 Bc6 a5 Be4 a7 Qf8 d8R Bd3 a6 Be4 d5 Qe8 d6 Bf8 d7 Bb7 Bh3 Bg2 Nf3 Nc6 Ne1 Bd5 Nd3 Nb8 Nc3 Be6 Be3 Bg7 Qd2 Bc4 Ne4+ Kf7 f6 g5+ Kf5 g4 f4 g3 Rag1 g2 Nd6+ Kf8 f7 Bf6 Re1 g1B Re2 Bd5 Bb6 Bh2 Bg1 Bb7 Bg4 Bg3 Rh3 Bh2 Rg3 Nc6 Bh3 Ne5 Bg4 Rc8 a8Q Ng6 a7 Ba6 Qe4 Rc4 a8Q Ra4 Qd4 Ra2 Qa4 Bh4 Qd5 Nf6 Qdd4 Nd5 Qb2 Bf6 Bh3 Rg8 Bg4 Rg7 h8R+ Rg8 h7 Kg7 Bh3 Kh6 f8Q+ Kh5 Qf7 Nb6 Qd5 Kh4 Qa8 Rg7 Ke6 Rg8 f5+ Nc4 Bg4 Ne3 Bh3+ Bd4 f6 Nf1 f7 Qf8 Bg4 Bf6 Kf5 Qe8 f8Q Rg7 Rc8 Qd8 Rc4 Qb8 Rd4 Rg8 Qf7 Rc8 d8Q Rc4 Rd5 Re4 Bb6 Bg1 Ba7 Bc5 Qff8 Ba3 Bg1 Rb4 Bh5 Nf4 Bf7 Ng6 Be6 Rd4 Rgg2 Kh3 Qfh6+ Rh4 Qhf4 Nf8 Rg7 Ng6 Rhg8 Bc3 h8Q Be5 Qh5 Bf6 Nf2+ Kg2 Nd3+ Kh1 Rh7 Ne5 Rg4 Ng6 Rg3
BR6/N3K3/RqrpRN1b/2pN2n1/q1Qk4/rp2R2b/2R1Q2R/B1N2R1n b - - 0 1 illegal: No possible last move
NB1NKN2/7q/BRRNb3/B3bq2/2R1r1n1/R2r3b/2N4n/1BknR1Q1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kf7 Kd3 c5 Kc4 e5 f4 h5 g4 e4 d4 h4 d6 h3 Kd5 h2 b6 e3 a6 c4 b7 c3 a7 e2 d7 e1N g6+ Kf6 g7 c2 g5+ Ke7 g6 Kf6 Bd2 c1Q Nc3 Qa3 Nf3 Qae7 Nb5 Qee8 Ba5 Nc6 b8B Rh4 Ra3 Qe3 Nd6 Nh6 g8B Be7 g7 Nd3 Bh7 Qc1 g8R Nce5 Ne1 Qe3 Nc2 Ba6 Rg4 Nf3 Kc6 Qg1 d5 Qh8 d8R Bc4 Kd7 Nb2 Rc8 Qc5 Rc6 Qg7 Rhg1 h1B Ke8 Nh2 Qb1 Bb3 Ba6 Nd1 Re1 Bg2 Qc1 Bf8 Qe3 Rh3 Qg1 Rd3 Bg6 Qh7 Rb6 Bh3 Rc6 Kg7 f6+ Kg8 f5 Bg7 Rga4 N6g4 f7+ Kh8 f8N Be5 Rb6 Kg7 f6+ Kh6 f7 Kg5 Rc4 Qb5+ Nd7 Qc5 f8R Qf2 Rbc6 Qf5 Rf6 Ba2 Nf8 Bb3 Ne4+ Kf4 d6 Kf3 d7 Kf4 Rd4 Be6 d8N Kf3 Rb6 Kf4 Nd6+ Kf3 Rf1+ Ke2 Rdb4 Kd2 Rc4+ Kc1 Re1 Bg2 Rf7 Bh3 Rfc7 Bg8 R7c6 Be6 Bc7 Rb8 a8N Rb7 Bb8 Rd7 N6f7 R7d4 Nd6 Re4 Bf7 Qf2 Rca4 Bf5 Ba2 Be6 Rac4 Qff5 Bb1
K2b2qk/R1bB1R2/r3r3/1RRN1RrN/5Bp1/2n4R/2Q3qB/B1n1B1Q1 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b6 h5 gxh5 a5 b3 a4 Bc4 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Ra5 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 Ke3 e5 Ke4 g5 d4 Kg7 h4 c5 f4 g4 h6+ Kh7 h5 c4 b7 c3 d6 a2 Kd5 e4 a5 c2 f6 e3 f5 e2 f7 e1Q d7 Qde7 d8Q Nc6 b8R Ra7 f6 Q7b4 a6 Be7 f8R Qb6 f7 Qba5+ Bb5 Qed2 Nc3 Qa3 Rh3 Rc7 a7 Qh2 a8R Qf2 Qc8 Qa4 Nge2 Qf6 Ra7 Ba3 Bf4 c1B Qg1 Be3 Rc1 a1R Ng3 Na5 Bd7 Ra2 Rb5 Bb2 Rc2 Qf5+ Kd6 Nf6 Nd5 Bec1 Rcc5 Rb7 Qc6 Rb6 Kc7 Ra6 Kb8 Qc4 Ka8 Rg8 Qc8 Kh8 h7 Kg7 h8B+ Kh7 h6 Rg7 Nh5 Rg5 Qc7 Ne4 Bhe5 Rf6 Bh2 Nb3 Bef4 Raa6 Qc6 Kg6 h7 Nc3 h8B Kh7 Bg7 Re6 Bf6 Rg6 Bh4 Rg5 Be1 Qg6 Qc7 Qg8 Qc6 Re7 Qg6+ Kh8 Qc2 Re2 Bfd2 Rg7 Bc8 Rg5 Ndf6 Nd1 d5 Be5 d6 Bcb2 d7 Re4 d8B Qf1 Bdf4 Nc1 Nd5 Qg2 Bd7 Bc7 Be7 Bg7 Bf6 Ree6 Ba1 Nc3 Re8 Re7 f8R Bf6 Rf7 Re4 Ra5 Ree5 Rab5 Bfd8 Rf5 Re4 Ref8 Ree6 R8f7
3NRk2/1B2N1p1/NKQ3Q1/QQB1rr1N/3Nr3/2QN2R1/r1qb4/n3qb2 b - - 0 1 illegal: No possible last move
nQ2R1r1/bk4bB/4n1R1/2RN1N2/2bBb2K/Br1R2R1/5Bp1/2BnQR2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 f5 gxf5 d5 c4 g5 cxd5 g4 h4 a4 f4 g3 e4 Bb7 e5 Bc6 b6 Bb5 f6 Ba6 f5 Qd6 f7+ Kd7 Nf3 Qf6 exf6 Bc8 Ng1 Ra5 Bd3 Rc5 Bf1 Rc4 Qc2 Rg4 Qd1 Rg5 hxg5 Ba6 Ra3 Bb7 Ra1 Bc8 d4 h5 b4 c5 d6 Kc6 b5+ Kb7 d5 e5 g6 a3 g7 c4 d7 a2 d8R e4 d6 e3 d7 e2 Re8 c3 d8R c2 Nc3 h4 Nd5 h3 Nf3 h2 Nd4 Ne7 g8R Na6 Rg6 Nb8 Rg1 Bg7 f8B h1B f7 Rh4 f6 Re4 Nf5 Bh6 Bg7 Nec6 f8R Be6 f7 Rg4 Bd4 Nd7 Rh8 Rg5 f8B Be4 Bfa3 Bg7 Rh5 g2 Kf2 e1R Bd3 Bf7 Rf1 Re3 Qe1 Rgg3 Rb1 a1B Rb3 Bc3 Rhg5 Ba5 Rc8 Nd8 Rc5 Ne6 Rbc3 Ndf8 Rb3 Nc7 Rbc3 Nfe6 Rg4 Rh3 Rg3 Rh8 Rb3 Na8 Rbc3 Rg8 Rb3 Nd8 Rbc3 Kb8 b7 Bb6 Rb3 Ka7 b8B+ Kb7 Ba7 Ne6 Rbc3 Bc7 b6 Bb8 Kg1 Rf3 Kh2 Re3 Kh3 Rf3 Bcb2 c1N Kh4 Na2 Bc1 Re3 Rb3 Nc3 Bc2 Nd1 Rd3 Ka6 b7 Rf3 Bb6 Ba7 b8Q Re3 Rd2 Rb3 Rdd3 Nd8 Nf4 Bc4 Nd5 Ne6 Bf2 Be5 Rc7 Bh8 Bbd4 Bg7 Rc5 Rb4 Rde3 Bcd3 Rh6 Rb3 Nd6 Bc4 Bb1 Bf3 Bh7 Be4 Nf5 Rb2 Rd3 Rb3 Qf4 Kb7 Rhg6 Ne3 Qd6 Nd1 Qb8+
q1r4Q/R3R2p/4R1BQ/1R1N1pb1/KRnNQB2/4b1QR/2k1b1qQ/6q1 b - - 0 1 illegal: No possible last move
BB2N1Q1/1qpqNr2/np1B1N1B/1b1RpN1p/8/K5NB/1Q5k/R1b2N2 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Bd7 f6 Ra5 f5 Bc8 f7+ Kd7 bxa3 Kd6 a4 Ra8 a5 Kd7 g5 Ra6 h3 Rf6 h4 Nc6 Ba3 Nd4 Bc1 Ne6 gxf6 g5 Nf3 g4 Ng1 Ng5 hxg5 Bg7 Bd3 Bh6 Bf1 Bf8 d4 Kd6 Kd2 e5 Kc3 h5 Kb4 g3 a4 g2 a6 Qe7 a5 Qd7 a7 Qe6 a8Q Qd7 g6 Nh6 g7 Qb5+ Ka3 Ng8 a6 Qd3+ Qb3 Qg3 a7 Qf2 Be3 Qe2 Qb2 Qb5 Nd2 Qd7 Ne2 g1Q Ng3 Be7 f8N Qb5 f7 Qd7 f6 Qh3 Nh7 Qf2 f8B Qfg2 f7 Qhh2 Nf6 Qf3 Ne8+ Kd7+ d6 Ke6 d5+ Kd7 Bh3+ Qg4 Rhd1 Nh6 g8N Nf5 Bfh6 Rh7 f8B Qg2 Bg1 Ne3 Ngf6+ Kd8 Qb8 Qd7 a8B Rf7 Bf2 Nf5 Ba7 b6 Ng4 Bg5 Ngf6 Qb5 d7 Ng7 Bd6 Ne6 Qb7 Qh1 Bb8 Nc5 Qc6 Na6 Qc4 Bb7 Qg4 Bf4 Qg8 Bc6 Nb3 Qg2 Bc5 Qe4 Ne2 Nb4 Rd3 Bc1 Nd2 Na6 Bb4 Nc5 Rd4 Ke7 d8N Rg7 Ne6 Rf7 N6g7 Bd7 Rd3 Qc6 Rd4 Qe6 Rd3 Bb5 d6+ Kd8 d7 Ke7 d8N Qb7 Rd5 Qd7 Nd6 Na6 Nge8 Qf5 Nc6+ Ke6 N6c4 Qg4 Bd6 Kf5 Qf8 Kg6 Ne3 Qgc8 Nf5 Qd7 Bg7 Kg5 Nce7 Qdc6 Qg8 Qd7 Neg3 Kf4 Ngf1 Be2 Nb1 Bb5 Bh6+ Kf3 Nbd2+ Kf2 N1g3 Kg1 Ngf1+ Kh1 N1g3+ Kh2 Ndf1+
Q2Q2nN/r3NQ2/4N1nQ/2Q3rR/n2bQ2R/N1NKB3/b1rn2q1/1B1kq3 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 d4 Kd6 f4 c5 b4 e5 h4 g5 b6 a5 h6 e4 h7 e3 b7 c4 f6 a4 f5 g4 h5 a3 h6 a2 b5 g3 b6 c3 f7 c2 f6 g2 Rh4 Nd7 b8N Ra4 b7 Rc4 Qd3 Qe8 Na3 Bg7 f8Q+ Qe7 f7 Rc7 Nc6 Bf6 b8Q Nb6 Qa8 Ra7 Qe4 Na4 Kd3 e2 Be3 e1Q Ne2 g1R Nc3 Rg5 Qg7 Qd7 Ne7 Qc6 f8Q Be6 Qgf7 Bg7 Rb1 a1N Rb5 Nb3 Bh3 Nd2 Bf5 Kc7 Ra5 Kb6 d6 Ba2 d5+ Bd4 d7 Qb7 d8N c1N+ Kc2 Ne2 d6 Nf4 d7 Qc6 Ne6 Ng6 Kd3 Qb7 Re5 Qd5 Qfc8 Ka5 d8Q+ Kb4 Qcc6 Kb3 Qc5 Qb7 Rd5 Kb2 Re5 Kc1 Rd5 Nf6 Re5 Rf8 h8Q Ng8 h7 Qc6 Qhg7 Qd5 h8N Re8 Qd7 Rc8 Qd8 Rc6 Qh6 Rcc7 Qf4 Qg2 Be4 Rg3 Reh5 Rg5 Bd5 Rc6 Bb3 Rcc7 Bc2 Rc8 Bb1 Rc6 Ne2+ Kd1 Qe4 Rcc7 Qb6 Rc1 Qc5 Rc2 Nc3+
BQ1R1k1B/B1b2N2/1r2r1R1/1r2r2N/N3nN1B/5N1b/4nqb1/1qQKN2B b - - 0 1 illegal: No possible last move, all moves rejected
2N3N1/4bR1R/3BnRn1/6n1/4Q1RN/NRn2RKb/BnrqQ1Nr/2nk4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 Kd6 d4 c5 f4 a5 Kf2 g5 f6 e5 b6 g4 f7 a4 f5 a3 b5 a2 f6 c4 h6 c3 h7 c2 h5 e4 b7 e3+ Kg3 e2 b6 e1N h6 Ra5 Ne2 Bd7 Ba3+ Rc5 Rh3 c1N Nf4 Nc6 b8R Qe7 b7 Na7 Bc4 Nc8 Ng2 Qe6 Qe2 Be7 f8R Nf3 f7 Kc7 d6+ Kb6 d5 Ba4 d7 Ka5 d8Q+ Nb6 d6 Qd7 Qe8 Bd8 Q8e4 Bf6 Rh4 Qd8 d7 Ne7 Be6 Rc3 Bd6 Rc2 Na3 Nc4 Rb1 a1N Rb6 Nb2 Ba2 Ng5 Rb3 Nc8 Rf3 Be7 Rf6 Nab3 Rf3 Rg8 h8R Nc5 h7 Nce6 Rf6 Rg6 Rhg8 Rh6 h8N Bb5 Ng6 Rh8 Rh1 Rh2 N6h4 Bc4 Rg7 Ka4 Rfg8 Qa5 f8R Qd5 d8N Qd2 Qe5 Bd3 Nf7 Bh7 Nh6 Bf5 Bb1 Kb3 Q5e4 Kc3 Rh7 Kb3 Rf1 Kc3 R8f7 Kb3 Kf2 Kc3 Ba2 g3+ Kg1 Bh3 R1f3+ Nbd3 Rgg7 Kb2 Ng8 Kc3 Ne3 g2 Rgg6 Nb2 Kf2 g1N+ Kg3 Nb6 Rgg7 Nd5 Rgg6 Ndf4 Neg2+ Qd3 Rbf8 Qe3 b8N Qd3 Rgg7 Ng6 Nc6 Qe3 Rb8 Qd3 Qf1 Kd2 Rb3 Qd5 Qf2+ Kd1 Na7 Qd4 Nc8 Qd2 Qfe3 Nge2+ Kf2 Nc3+ Kg3 Ncd3 Qe2+ Kc1 Rh5 Nge5 R3f4 Ngf3 Q2e3 Kd1 Rhh7 Nc1 Rgg4 Nfg5 Rf3 Ng6 Qe2+
nNR3rB/N1RKbQ2/B7/2B5/1rqNn2N/rb2BR2/p1RqN1k1/2qR4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 h4 g5 d4+ Ke4 f4 e5+ d6 a5 b4 c6 f6 a4 d5 g4 b6 g3 f7 g2 f5 a3 f6 a2 b7 Bh3 b5 Ra4 b6 Ra7 h6 Be7 f8R Bg4 h7 Qd7 h5 Qf5 h6 Ra8 f7 Qf6 Ne2 Kf3 Nbc3 g1Q+ Nd4+ Kf2 Nce2 e4 Qb3 e3 Rh2+ Qg2 Rc8 Bh3 f8R Bg4 Rc7 Bd8 d7 Bf5 d6 Bd3 Qf7 Be7 d8R Qf4 Rdc8 Bc4 Ba3 Ra6 Rd1 Nf6 Bb4 Rg8 h8B Qg4 h7 Bb3 Bd2 Ra3 Bb4 Bd8 d7 Na6+ Kd6 c5 b8N c4 b7 c3 Bc5 c2 Nbc6 c1Q b8N Qh4 Na7 Be7+ Ke5 Qg4 d8B Qh4 Ne6 Qhc4 N6d4 Bd6+ Kf5 Ne4 Bg5 Be7 Bh6 Nb4 Bf4 Nd5 Ke6 Nb6+ Kf5 Q4c2 Ke5 Na8 Kf5 Ba4 Ke6 Bb3+ Kd7 Q2d2 Nc3 Kg1 Ba6+ Qf1 Rf2 e2 Be3 e1R Ne2+ Kh1 Rf3 Kg2 Rfe8 Bd6 Re6 Be7 Rb6 Bd5 Rb2 Bc4 Rc2 Bb3 Nc3 Qc4 Ne2 Qb2 Be5 Rg1 h8N Qbc1 Ng6 Rh1 Bh8 Rh6 Nf8 Rb6 Ng6 Rb4 Nh4+
N1nB2br/QrN2k2/1R1bb3/1N4BR/2BBq2n/p5B1/1qRq2NK/5R1R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 c5 Kf2 h5 Kg3 e5 b4 a5 d4 h4+ Kh2 e4 g4 e3 d6 a4 g6 c4 d7+ Ke7 g7 e2 f6+ Kf7 b6 e1Q b5 a3 b7 c3 d5 c2 b6 h3 g5 Qe5 d6 Rh6 g6+ Ke6 f7 Qef6 f5+ Ke5 Bg5 c1Q Bc4 Na6 b8B Rh8 b7 Rh6 Nf3+ Ke4 Qg1 Qa5 d8B Qc7 Nh4 Ke5 d7 Qc3 Ng2 Bd6 f8B Rh7 Qa7 Qb2 Nc3 Qf2 Raf1 Qe6 f6 Qef5 f7 Qb2 Nb5 Nh6 g8R Nb4 g7 Nc6 Rh8 Qa5 g8R Qe4 Bfe7 Qab4 f8N Q4d2 Ne6 Nf5 Nec7 Nh4 Rg6 Rf7 Rh5 Rh7 Bf8 Ne7 Rgf6 Rf7 Rc1 Rg7 Rff1 Rh7 Rc2 Rg7 Bf4+ Kf6 Be5+ Kg6 Bf4 Rh7 Bg7 Rh8 Bd4 Rh7 Nd5 Kf7 Bbc7 Rh8 b8R Rh7 Rb6 Rh8 Rc6 Rb8 Ra6 Rb7 Nb6+ Qd5 Na8 Qe6 Kg3 h2 Rb6 Qd5 Rhg1 h1B Kh2 Nef5 Bg5 Ne7 Bd8 Qe6 Be2 Qe4 Bg3+ Nhf5 Nh4 Bg2 Rh1 Bf3 Ng2 Nh4 Rfc1 Bg4 Bc4+ Be6 Rcf1+ Kg6 Bc7 Bg8 d8N Bh3 Ne6 Nc8 Bcd8 Bg4 Nec7 B4e6 Rb1 Kf7 Rbf1+
Qqr1q1B1/n2R4/1Q2R2R/K1n2BBB/nN3p1R/r1B4R/4B2k/2N1qbb1 b - - 0 1 illegal: No possible last move, all moves rejected
N3k3/b2R1r2/1r1qB3/K1BB1rbN/nB3p2/1NR2N2/N2n2R1/Q1q1R1Bb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 a5 Kd2 f5 Kc3 c5 h4 g5 e4 a4 b4 f4 h6 a3 e6 g4 e5 a2 e7 g3 h5 c4 h7 g2 d6 Ra5 d7+ Kf7 e8B+ Ke7 b6 Na6 h6 Ra4 b7 Nc5 b8N Ba6 b5 Qc7 d8N Qc8 b6 Ra3+ Kb4 c3 b7 c2 e6 Re3 d5 Qc7 d6+ Kf6 e7 Bc4 d7 Rg3 Nbc6 Ne4 b8R Ng5 Rc8 Bd5 Be3 c1Q Rh2 Qd2+ Nc3 Bf3 Bc4 Bg4 Bef7 Be6 Na5 Qb2+ Nb3 Bd5 Ne6 Nh3 d8R Rg6 Ng7 Ng5 Rb1 a1B Rd7 Ne6 Na2 Nc5 Bd2 Qc6 Ka5 Na4 Bb4 Rg5 Qe1 Rf5 Rc1 Bf3+ Bcd5 Qb1 Re8 Bd4 Rc3 Ba7 Qc1 Qc2 Qa1 Qc1 Bc5 Kg5 Nh5 Nf6 Bb4 Ne4 Bg8 Nd2 Bf7 Rg8 h8B Qe6 h7 Rg6 Bd4 Bh6 h8B Rgf6 Bg8 Kg6 Bdc5 Qe5 Bg7 Rc6 Bh8 Qd6 Bhd4 Be4 Ra8 Bf3 e8N Rb6 Nc7 Be4 Re8 Bf3 Ne2 g1R Na8 Bh1 Ree7 Re1 Bg1 Bg5 Ned4 Re4 Re8 Re7 Rg2 Rh7 Re1 Re7 Ng7 Kf6 Bge6 Rf7 Rd8 Ke7 Rd7+ Kf8 Nh5 Ke8 Nf3
1Bq2r1Q/8/1RQr2Rb/p1n2BB1/2N3bb/1N1RR1R1/1K3nq1/1B1Brk1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 h5 Kd2 c5 Kc2 f5 g4 h4 e6 Kd6 e7 h3 e8B h2 e5+ Ke7 b6 f4 b7 c4 b5 c3 b6 f3 g6 f2 e6 Kf6 d6 Qd7 d5 Ke5 e7 Ke4 g7 Rh3 g5 Na6 b8B Rg3 g6 Qb5 d7 Rd3 d8Q Re3 d6 Rd3 d7 Ra7 b7 Qe5 Na3 Rd6 Ne2 Kf3 Nc4 Qc5 Rg1 h1Q Ra3 Qb6 Bg5 Rd5 Nc1+ Ke4 Qf3+ Kd4 Bd3 f1R Bf5 Qd6 Rg3 Nh6 g8B Nc5 g7 Ra8 Beg6 Qe6 e8B Rd6 Qc6 Be7 Bg8f7 Qh3 g8R Re1 Bh5 Qh1 Bd1 Ng4 Rg6 Nf2 Kb1 c2+ Kb2 Qf1 Rae3 Qg2 Bg8 Bf6 Bh7 Qg8 Bf7 Qe8 Bd5 Qg8 Bh6 Bh4 Bg5 Qe6 Qf8 Qe8 d8R Bd7 Bd3 Bg4 Rd7 Qc8 Bf5 Qh2 Bh1 Qg2 Bc7 Ra7 b8R Ra8 Rb6 Rb8 Nd3 Ra8 Bb8 c1B+ Ka2 Kc3 Qd8 Bd2 Nc1+ Kd4 Re5 Bf4 Qh8 Be3 Nb3+ Kc3 Re4+ Kd3 Bc2+ Ke2 Kb2 Kf1 Bd1 Rf6 Rd3 Rd6 Bf6 Bh6 Ree3 Ra7 Bg5 Rf7 Bg8 Rff6 Bd5 Rf8 Bde4 Qc7 Rc3 Qd8 Bb1 Qc8 Rcd3
1K3B1k/r2pbQRB/N1b1qN2/3BnQ1q/1B1B4/b3Nr2/1R4rn/2B1N1N1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 a5 Ke4 g5 Ke5 Kg7 c4 e6 f4 g4 b4 a4 h4 g3 h6+ Kh7 c6 a3 b6 a2 c5 g2 b5 Qe7 b7 Ra7 c7 Qg7+ f6 Ra8 f5 Qf7 b6 Qg7 h5 Qg6 f7 Ne7 Kd6 e5+ f6 e4 c6 e3 Qd5 e2 Qf5 e1Q Bd3 Qe4 Nd2 Rg8 Rh2 Rh8 Ndf3 Bg7 f8N+ Kg8 h7+ Kf7 h6 Ra7 Ne1 Na6 b8Q Qf3 b7 Rg8 h8B Qg5 h7 Bh6 Bg7 Qf2 h8B Qf1 Nh7 Qg4 Bf8 Bg5 Qa8 Qff3 b8N Nc5 Na6 Bb7 c8B Ne6 c7 Bc6 Bb7 Rg7 c8N Kg8 Nb6 Ng6 Qe8 Ne5 Nc4 Nd4 Kc7 Rf7 Ne3 Qe2 Bb1 Qh5 Kb8 Ndf3 Bb4+ Rf8 Bc2 Bh4 Rb1 a1B Rb2 Qc4 Rh3 Nh2 Rg3+ Bg5 Bg7 Qe6 Rg4 Ba4 Bd5 Bc6 Bh6 Kh8 f7 Be7 Nf6 Nhf3 Rg7 Nh2 Rb3 Bd4 Rb2 Bdc5 Bf4 Nef3 Bd6 Ne5 Bc3 Ba3 Bd4 Nhg4 Bb4 Nh2 Ngf3 g1R Bce4 Rf1 Ng1 Rg8 f8B Rf3 Qf7 Rf2 Rg2 Rg3 Bc2 Rgf3 Rg7 Rg2 Qg4 Bb7 Bh7 Bc6 Qf5
nK4R1/2B4k/1R1Q1N2/2Br2b1/b1N2qb1/3R1n2/rp1N3R/B1BrbRNB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 Kg7 Ke4 b5 Ke5 c5 a4 h5 d4 c4 f4 c3 g4 h4 d6 c2 g6 b4 d7 b3 a6 h3 g5 e6 d5 h2 a5 Bc5 d6 Bb4 a7 Qb6 d8R Qc7 a6 Ba5 Bg2 Bb4 Nd2 Rh4 f6+ Kh8 f5 Qe7 g7+ Kh7 d7 Qe8 g6+ Kh6 f7 Rh5 f8B Rh3 f6 Qf7 Bc5 Rg3 Kd6 e5 Kc7 Ne7 g8R e4 g7 e3 Bb7 Qf8 f7 e2 Be4 e1R Ra2 Qe8 f8B Qf7 Bd4 Rd3 Ba1 Nec6 Bc5 Qf5 Rb2 Bc3 Rh8+ Kg6 g8N Rd5 Nf6 Nd4 Nh5 Nf3 Rhf8 Bb4 Rf6+ Kh7 Rb6 Bc3 Rg8 Rf1 d8B Nd7 Rb1 b2 Rg3 Rb8 a8R Bb4 a7 Bc3 Qe2 Rd1 Qb5 Ba5 Qc6 Bc3 Qd6 Bb4 Rb5 Nb6 Rg8 Bc3 Rb3 Ba5 Rd3 Bd7 Rg6 Ba4 Rf6 Rc8+ Kb7 Rc6 Bc7 Bb4 Rc8 Na8 Rg8 Ra6 Rfg6 Qf4 Kb8 Nb6 a8N Ra7 Nb3 Be1 Nd2 Ra5 Nh3 Ra6 Rf1 h1B Ng1 Bg2 Rf2 Bh3 Rh2 Bg4 Re6+ Rf5 Bc6 Rd5 Reg6 Nc8 Nb6 Ra7 Nbc4 Nb6 Bb7 Na8 Qf8 Be8 Rb6 Ra2 Qd6 Ba4 Ka7 Ng5 Rf8 Bg3 Rf3 Re5 Rd3 Rde1 Bh1 Nf3 Kb8 Rd5 Rg8 Rf1 Ne4 Bh4 Bd2 Bg5 Re1 c1B Bde3 Bd2 Rc1 Rf2 Rf1 Be1 Bc1 Rg2 Bd4 Rd2 Bc5 Rd1 Ned2 Bd8 Bb4 Bdh4 Bc5 Bg5 Nf6#
N1k1Br2/1R2rn1q/2B1rr2/1B1QB3/2B3pb/1NN1R1N1/1nNnb3/1B1Q2K1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 g5 c4 f5 e4 a5 h4 d5 b4 Kd7 b6 a4 c6+ Ke8 h6 a3 c5 f4 h7 d4 c7 Kd7 b5 f3 e6+ Ke7 e5 a2 c6 d3 b7 d2 h5 g4 h6 Qd5 b6 Qd3 Bb2 Ra4 Nc3 Bd7 c8B Kd8 e7+ Ke8 c7 Rb4 Nge2 Qa6 Rb1 a1R Nd4 Bc6 Bc4 Qa4 Re1 Qa7 Bf5 Nd7 b8N Qa5 c8B Bg7 b7 Nf8 Nd7 Bd5 b8N Ng6 Re3 Rb6 Nc5 Ra4 Nba6 Rb5 Kg1 Rb7 Nc2 Nh4 Nb3 Bf6 Bfd3 Qd8 Bcf5 Qd7 Bb5 Re4 Bdc4 Rb6 Ba1 Re6 Nc7+ Kf7 e8B+ Ke7 Bfg6 Kd8 Na8 Kc8 Rb2 Re7 e6 Qc7 Bec6 f2+ Kf1 Nf3 Bf5 Rd7 e7 Re6 e8B Rde7 Kg2 f1R Bfd3 Nh2+ Be4 Rf4 Kg1 Bh4 B4g6 Bf3 Rb1 Nf6 Bf5 Rg8 h8Q Be2 h7 Ne4 Qd4 Nd6 h8N Nf1 Ng6 Nf7 Qd5 Rf8 Bfd3 Rf5 Nf4 Rff6 Nh5 Qa7 Ng3 Qd7 Qe1 d1N Bg6 Nb2 Qed1 Qc7 Ne1 Ng5 Ba4 Nd3 Nce4 Rf2 Nd4 Rg7 Rb7 R2f6 Bab5 Nd2 Nb3 Qf7 Bd4 Nb2 Be5 Qg8 Bf5 Re7 Nc3 Qh7 Bb1 Nf7 Nc2
Nr1q1R2/1Q4K1/1B2rNRr/4Bk1b/1p1R1R2/3n1b1R/bbB3R1/1BnQ3B b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 Kf3 f5 Kf4 h5 e4 c5 g4 b5 a4 h4 d4 h3 d6+ Ke6 a6 h2 a7 b4 g6 c4 g7 c3 d7 c2 d5+ Kf7 d6 Kg6 a5 Qe8 d8R Rh4 e6 Rh3 Ke5 f4 d7 f3 e7 f2 g5 Qf7 e8B Na6 Nd2 Nc7 a6 Ra3 Ne2 Rd3 Nf4+ Kh7 g6+ Kh6 Nc4 Kg5 Nh5+ Rd2 Bd3 f1B Nb6 Qa2 Bb2 c1R Nf6 Bb7 Bc2 Rb8 a8B Bh3 a7 Nh6 g8R Ne6 g7 Bf5 Bg6 Bc8 Bc6 Qb3 a8Q Rd6 Qb7 Nf4 Na8 Ne2 Rf1 h1B Rf4 Bg4 Ra3 Qa4 Rh3 Bh5 Bh7 Be7 Rgf8 B1f3 g8R+ Bg6 Rg7 Qa5+ Bd5 Rc6 Rfg8 Bc5 Rdf8 Be7 d8B Be6 Bb6 Rb1 Rd8 Nc1 Rgf8 Bg8 Rd6 Nf7+ Ke6 Rc4 e5 Re4 Bc6 Re3 Rdd4 Bd8 Ba1 Rb2 Bb1 Rh2 Bc3 Bc7 Ke7 Ree2 e6 Ne5 Bb2 Ned3 Ba1 Bh5 Bh1 Bf3 Bc3 Bf7 Rfg8 Bd8+ Kf8 Re4 e7 Ba2 e8R Re6 Rfe4 Kf5 Rf4+ Ke5 Ba1 Bgh5 Rg2 Bc7 Be4 Qd5 R8g7 Qd8 R7g6 Bd6+ Kg7 Bc5 Rd6+ Bd4 Rf8 Bb2 Rd4 Nf2 Bec2 Nfd3 Rfh4 Kf5 Rc4 Ba3 Be5 Bb2 Rhd4 Bhg4 Rhg3 Rh6 Rh3 Bh5 Rdg4 Ba1 Rcd4 Bb2 Rgf4+
1NnQbKRB/3p1N2/7n/2RN1RnN/q2R4/b3N1k1/r1Rn1R1b/1r1B3Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 h4 g4 b4 e4 c4 e3 b6 e2 b7 e1B b5 a4 c6 g3 c5 a3 c7 a2 h6 g2 b6 Bg3 c6 Bc5 h7 Ra7 h5 Be3 Kd6 Ra5 h6 Ra7 Nd2 Be1 Rh4 Ra5 Bb2+ Re5 Be2 Na6 b8N B1f2 b7 Bg3 Nc4 Bb6 Ne3 Ne7 Nh3 g1N Rc1 a1N Rc5 Re8 h8Q+ Kf7 f6 Kg6 f7 Nb3 f8R Nf3 h7 Nfd2 Qh1 Rf5 Bd1 Bh2 Bd4 Rg5 Rff5 Rg1 Qf8 Ba7 Bh8 Nd4 Rc2 Nc5 Na6 Rg2 b8N Rf2 Nb4 Bb7 c8R Qa5 c7 Be4 Nbd5 Qa4 Rd8 Nce6 c8R Ng5 R8c5 Rg2 Rg4 Kh5 Qf6 Bb6 Rdc8 Ng8 Qd8 Nh6 Rh4+ Kg6 Rg4 Nc6 Rh4 Rf8 Rg4 Na7 Ke7 Rf6 Rh4 Re6+ Kf8 Ba5 Rg4 Rb6 Rh4 Rb1 Rg4 Nb3 Rf2 Kh5 Rcc2 Nd4 R8c5 Nb3 Re5 Rg1 f5 Be1 f6 Bd3 f7 Ra1 Rd4+ Be2 Bg7 Ra2 h8N Bf3 Rf5 Rf1 Nhf4+ Kh4 Be2 Bh5 Ke7 Kg3 f8R Bb4 Rg8 Be8 Nf7 Ba3 Kf8 Rb1 Bh8 Nc8 Bd1 Nd2 Nh5+
K1n1b1NQ/3RN1B1/n2pq1Rr/N1bB1BBq/4bR1b/5Rk1/2R5/N3Br2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kd5 a5 b4 h4 f4 e4 c4 h3 g4 e3 b6 h2 f6 Kg6 f5+ Kf7 g6+ Ke8 g5 a4 f7+ Ke7 c6 e2 b5 e1B g7 a3 b7 a2 c7 Bg3 b6 Rh3 c5 Rh5 c6 Rh3 g6 Kf6 Nd2 Kg5 f6 Kf4 Bc4 Ra6 Ngf3 Ra4 Nd4 Be1 Rg1 Na6 b8B Nh6 g8N Rb3 b7 Rd3 g7 Ba3 f8B Bb2 f7 Qe8 Ne7 Bf2 g8N Rh3 Qh5 Nf5 Bg7 Nd6 f8R+ Nf7 N4b3 Rf3 Na5 h1B Qh8 Nc5 Rg6 Na6 Ndb3+ Be3 Bd2 Ba3 Be1 Bf2 Rd1 Bh4 Na1 Qd8 Ba7 Bc5 b8R Raa3 Rb2 Qe8 Rf2 Re3 Rdd2 Re6 Bb6 Bb7 c8B Rf6 Rc2 Nd6 Bd8 Bg2 Bb3 Bh3 Rf7 Bg4 Rc4+ Kg3 Rf4 Ba8 Bc2 Re6 Bb7 Nc8 c7 d6 Be4 Qb5 Bf5 Qc4+ Kc6 Qe2 Rg5 Rh6 Rg6 Qe4+ Nd5 Qc4 Bg5 Bh5 Rd7 Qb3 Nde7 Qe6 Rf6 Be8 Rg6 Rc3 Bb1 Rc1 Bf5 Nb6 c8R Rd1 Nc2 a1Q Rc7 Qae5 Na1 Qe2 Rc8 Qh5 Rc7 Rb1 Rc8 Nb4+ Kc7 Rd1 Kb8 Na6+ Ka7 Rc1 Bh1 Be4 Rcc7 Bc2 Bd5 Nc8+ Ka8 Be4 Rc6 Ba3 Rcc2 Bc5 Bec3 Rh1 Be1 Rf1 R2f3#
1qn1b2q/3R1n1N/4N3/6Np/3nKpBN/R1NQQ1BB/BrrB1b2/5B1k b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 h5 b4 c5 g4 a5 d4 f5 b6 a4 e6+ Kd6 b5 c4 e7 a3 e8B c3 g6 c2 g5 a2 b7 Qb6 g7 Bd7 g6 Nf6 g8B Qa6 b6 Qa3+ Nc3 Ne4 g7 Qa7 Be6 Qa4 g8B Nf2 Nf3 Qb4 Nh4 Qb3 Bd2 Nc6 b8Q+ Ke7 b7 Kf6 d6 Kg5 d5 Kg4 Qa7 Kg3 b8B Bc8 d7+ Bd6 d8N c1Q Nf7 Qb4 Ng5 Ne4 B8d7 Qcb2 Qc5 Bc7 d6 Ne7 Qb1 Ba6 Qd3 Bb6 Bc8 Ba7 d7+ Nd6 d8N Bb5 Bed7 Rh6 Nde6 Bb6 Rg1+ Kh2 Kf3 Qd4 e4 Qh8 e5 Nf7 Qce3 Ra3 Rg4 Kh1 Rd4 Rb3 Nd8 Bc7 e6 Bg3 Nce4 Bf2 Bg3 f4 Rd5 Nd6 Rd4 Nc6 e7 Na7 e8N Rh7 Bdh3 Rc7 Bge6 Rc2 Nc3 Nf7 Nf6 Be8 Nfh7 Rb4 Bcd7 Nc8 Ke4 Rb8 Bc4 Qb7+ Rd5 Qa7 Bdg4 Rbb2 Nde6 Qb8 Re1 a1N Rd7 Nb3 Ra1 Nd4 Ra3 Ne2 Bd5 Nd4 Ba2
B2K1n2/2Nb2rq/RBRQ1Q1b/6p1/2q1nQr1/5NQQ/1BkpQn2/1B3B2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 a5 Kd5 e5 f4 g5 b4 e4 h4 e3 c4 e2 c6 e1Q c5 a4 c7 d6 c6 a3 b6 a2 h6 Qd7 b5 Bg7 h5 Qb4 b7 Qe7 b6 Qbe1 h7 Qg3 h6 Qe8 Be3 Na6 b8Q Qf8 b7 Qh2 Bb6 Qe2 Na3 Qee8 Nf3 Qe3 Nb5 Bd7 c8B Qfe7 c7 Qf8 Qe2 Be8 Be6 Nc5 c8B Qc1 Nc7 Ra7 Rg1 Bf7 Kc6 Nd3+ Kd7 Be8+ Kd8 d5 Bcd7 d4 Bc6 Qb1 Qc8 Qb5 b8Q Ne7 Ba8 Ng6 Rg2 Rg8 h8B Nf2 h7 d3 Qd7 Qf7 Qd6 Qd5 Rc1 a1N Rc6 Qe4 Ba2+ Qfe6 Rh2 d2 Rh5 Ra4 Rh6 Kf7 f6 Nf8 f5 Q6c4 Rg6 Bh6 Bg7 Bd7 h8Q Nb3 Qh7 Qed3 Bh8+ Bg7 Qh3 Bh6 Qf4 Rg7 Qfg3 Kg8 f7+ Kh7 Rgd6 Qb1 f6 Kg6 Re6 Nc5 Qd6 Nh7 f8Q Nce4 Qf4 Rb4 Q8d6 Nf8 Qfg3 Ng4 f7+ Kf5 Qhh2 Ngf2 Rg6 Rg8 Bb2 Rg7 Qhh3+ Ng4 B2d4 Nh7 f8Q+ Nef6 Qc8 Be6 Ba7 Qe4 Ra6 Qc3 Qhh4 Nf2 Qf7 Nf8 Qc6 Qc5 Ba1 Rd4+ Qfd7 Qc4 Bb6 Qb1 Qhh3+ Rg4 Bb2 Qbc2 Qd4 Q2d3 Q8d7 Qe4 Qf7 Bd7 Qg1 Kf4 Qc3 Qf5 Qc5 N6e4 Rc6 Nf6 Qgg2 Qh7 Qd6+ Kf5 Qd1 Ke4 Qgg3 Qd4 Qcc4 Ke3 Qce6+ N6e4 Qee5 Qc5 Qff6 Qd4 Bg2 Kd3 Qef4 Nc5 Qf1+ Kc2 Qe2 Qc4 Bf1 Nce4 Bb1+
2nQ1N2/bb2RRRr/3Bq1r1/2RB1B2/1k2R2p/1NNp1NNK/1p1n1B2/2r5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 g4 d5 f4 Kd7 Kf2 Kc6 Kg2 e5 a4 h5 c4 b5 g6 d4 f6 b4 f7 b3 f5 e4 g7 e3 f6 e2 g5 e1R g6 h4 a6 b2 a7 Qd7 a5 Qd5+ Nf3 Re3 a6 Bg4 Nd2 Bd7 Nb3 Qh5 Bd3 Qf5 Re1 Qd5 Bf5 Re4 Be3 Re8 Ra4 Be6 Bf2 Nh6 g8B Qd7 g7 Rd8 Kh3 Be7 f8N Bd5 f7 Bf6 Re7 Kc7 c6 Kb6 c5+ Kb5 c7 Be5 c8N Bc4 c6 Be6 c7 Rh7 Nd6+ Kc6 c8N Bd5 Nb6 Rc8 Ne4 Kb5 Ng3 Bb7 Nd5 Ng4 Rc4 Qe6 Rc5+ Ka4 Nc3+ Kb4 Qd3 Nc6 Qd2 Rab8 a8R Nf6 a7 Rc7 Qd3 Rd8 Qd1 Rd5 Rae8 Ne4 a8R Rd6 Ra7 Rc8 Qd2 d3 Qg5 Bd4 Qf6 Be3 Qd4+ Qc4 Qd5 Rdh6 Qd8 Nd2 Re4 Rc7 R8e7 Re6 Ng6 Rd6 f8B Bd4 Bf7 Qe6 g8R Rc8 Rg7 Rc7 Ra1 Na7 Rf1 Nc8 Bg8 Qd7 Bd5 Qe6 Re8 Ra6 Bd6 Rcc6 Nf8 Ra1 Bb8 Rc1 Ree7 Qf7 Bg4 Ra1 Ra5 Rc7 Be1 Rd7 Nh2 Qg6 Rff7 Rd6 Nf3 Rc1 Bf2 Qf5 Bc7 Rg6 Bb8 Qe6 Bf5 Nc4 Bc7 Bb6 Rc5 Ba7 Re1 Nd2 Bd6 Qf6 R1e5 Qe6 Re4+
1KRbN3/rQRB1kR1/1q1QR3/np6/Q1N1r2Q/2B4p/1p2n1QR/R1b4b b - - 0 1 illegal: Other
2rn1N2/1B3B2/1NQ3Nb/p2n3r/1n2N1B1/qkp1BQ1B/pB6/2NR1bKR b - - 0 1 illegal: Other
3B1R2/k2bBn1N/1B6/1B1r1RN1/3qnr2/1R3N1Q/K1b2QRB/2br1n1B b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 g4 Kd7 f4 c5 d4 Kc7 Kd2 Kb7 Kc2 h5 Kb2 e5 g6 h4 g5 e4 d6 h3 b6 c4 f6 c3+ Ka2 e3 f5 e2 g7 e1N g6 c2 f7 h2 d5 Nd3 f6 Bg4 a6+ Kc8 a7 Kb7 d7 Ne7 g8R Nbc6 d6 Bg7 f8Q Rh3 f7 Nc8 Nf3 Rb8 a8B+ Ka6 b7 Rh7 Nc3 Nd4 Ba3 c1R Ne4 Bf5 Rb1 Bh6 g7 Bg4 Qb3 Be3 Neg5 Nf5 Rg1 h1B Rg2 Qb6 d8B Rd1 d7 Bc1 Bae7 Qd4 Bb6 Ng3 d8B Rh5 Rh8 Bh3 g8N Nd6 Nf6 Bd7 Nfh7 Nde4 Qe6 Rh4 Qh3 Rf4 Rb3 Rc8 b8B Rc5 Be2 Rd5 Rg8 Nf1 Rg7 Rg4 Bh2 Rh4 Bc6 Rf4 Bb5+ Kb7 Rg6 Ne5 Rf6 Ka8 Rf5 Kb8 Qg8 Ka8 f8R Nf7 Qg6 Kb8 Qgh5 Kb7 Q5h4 Ka8 Qf2 Kb8 Ba5 Kb7 Bc6+ Ka7 Beb5 Rd6 Nh4 Nc5 Rg4 Be4 Rg1 Bd3 Bh1 Rd5 Nhf3 Bc2 Rg2 Ne4 Bab6+
2k1B1BN/n4b2/1b2q3/B2BR3/qQR1Q2r/2r1Qn2/B1b1NKR1/1RnB4 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 d4 Kd7 e4 f5 g4 c5 g6 h5 g5 f4 e6+ Kc7 e5 f3 a6 c4 d6+ Kb6 e7 c3 e8R c2 g7 h4 d5 h3 a7 Kb7 e6 h2 e7 Rh3 g6 Rh4 d7 Rh5 b6 Rg5 d6 Na6 Qe2 Nh6 g8B Qc7 d8R Bg4 g7 Rh5 d7 Rb8 Qe4+ Qc6 Nh3 Bf5 Ba2 Ng8 Nc3 Rh6 Bd2 c1N Be2 Bg6 Nf4 Rh4 Kf2 Nh6 g8B Bf7 Ng6 Nb4 Rc8 Nf5 d8Q Nd4 Rg1 h1Q Bd1 Qh3 Nh8 Qe6 Rg2 Ra8 Qe3 Qa4 Rc4 Nbc6 Qd5 Rc8 a8B+ Kb8 b7 Na7 Rb1 Bh6 Kg3 f2 Qde4 f1B Kf2 Bd3 Ne2 Bc2 Ba5 Bg7 Rd8 Bh6 e8B Nf3 Rd5 Bg5 Rdc5 Bd8 Re5 Bb6 Ng6 Qec6 Nh8 Kc7 b8Q+ Kd8 Rcb4 Qe6 Qbb7 Rc3 Rc4 Bc7 Qb4 Kc8 Bac6 Bb6 Bd5+
rQ1Rq3/1rB2Q1R/R1R2qn1/q6q/BN2n2N/4q1Rk/Q1N2r2/1KR2Q2 b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 d4 Kd7 Kd2 h5 Kc2 c5 b4 e5 f7 a5 f8Q a4 g5 h4 b6 h3 f6 g2 g6 h2 b5 c4 f5 a3 d6 a2 g7 e4 f7 c3 f6 Ke6 d5+ Kf5 d7 e3 b7 e2 d6 Kg4 b6 Nh6 g8R+ Kh4 Qd5 e1Q Na3 Qe3 Bb5 Ra4 Nf3+ Kh3 Nh4 g1R Rg2 Qde7 d8R Rf4 d7 Qe1 Rc8 Rd4 d8R Q1e6 Rc6 Qb4 Ba4 Na6 b8N Qa5 b7 Rf1 Bf4 Nc5 Na6 Ng4 b8Q Qe8 Rc1 a1Q Bc7 Ne4 Nb4 Ne5 Qa2 Rd7 Qg8 Ng6 f8R Rf4 f7 Rf3 Qh7 Rf1 Qh5 Rf2+ Qe2 Re7 Rg8 Rd7 f8Q Rg7 Qff7 Rgh7 Rhe1 h1Q Rg7 Qh2 Ra6 Qhe5 Red1 Qh5 R1d6 Rg8 Rdc6 Qb2+ Kd3 c2 Qd1 Qf6 Qf1 Rhh8 Rh7 Rg7 Rb1 c1Q Nac2 Qe1 Rc1 Qe3+ Kc4 Nc3 Kb3 Rf8 Kb2 Ne4+ Kb1 Rfg8 Qfd5 Rf7 Bb6 Ra7 Qf7 Ra8 Bc7 Rg7 Qf8 Rd7 Qff7 Re7 Be5 Rea7 Bc7 Rb7 Rg3+
nN1Q3k/3br3/1N1R3R/2QR1nb1/Qp1q4/3qQ1Q1/BR1NQ1K1/B1r1r3 b - - 0 1 illegal: No possible last move
1bQ1B1RR/R1Q1nnnR/1B3N1r/1NpR4/2Bq1b2/2R1NBk1/4r2q/2K5 b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 b4 Kd7 d4 Kd6 Kd2 a5 b5 e5 g7 h5 f6 a4 b7 h4 b6 e4 g6 c6 g5 a3 f7 h3 Be2 a2 Nf3 h2 Ne5 Nf6 g8R Rh7 g7 Qe7 g6 Nfd7 Qc2 Qh4 Ng4 Qd8 Na3 Na6 b8N Rh8 b7 Qb6 Nb5+ Ke7 d6+ Ke6 d5+ Kf5 Ne3+ Kf4 Bf3 Nf6 d7 Nh5 d8Q Qc5 d6 Nc7 d7 Rh6 Qc8 Kg3 d8R Bd6 f8R Bf4 Nd7 Nd5 b8R Ne7 Nf6 Ra7 Bb2 Qd4+ Kc1 Rb7 Bc3 c5 Rd5 Rb6 Ba5 Re6 Bb6 Re5 Ra8 Re6 Rb1 a1B Ra7 Bb8 Rh8 Bc3 g8B Ng7 Rb3 Bd2+ Kb1 Re5 Rc3 Re6 Bf7 Re5 Rf1 h1Q Be8 Qh2 Rh1 Bc1 Rfg8 Re6 Nc4 Bcf4 Ne3 Re5 Kc1 Re6 Qd2 Re5 Nd1 e3 Qc7 e2 Ne3 e1N Qc8 Ngf5 g7 Re6 Qa2 Re4 Qa5 Nd3+ Kb1 Ne5 Kc1 Nf7 Rh7 Qa2 Rh5 Qh2 Rhh8 Rg6 R5h7 Rh6 Qaa6 Ng5 Qc7 Nf7 Qac8 Re5 Rf8 Re4 g8B Ng7 Rh5 Ng5 Bc4 Nf7 Rd5 Re5 Rfg8 Re6 Kb1 Re5 Nd1 Re3 Kc1 Re2+ Ne3
B1R1bq1N/1Q3R2/1B3N2/k1N5/NN5Q/Nn1nbb1p/2KB1QQ1/2b2rb1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bb7 d5 Ra5 bxa5 Bc8 e4 Kd7 d4 h5 Kd2 f5 g4 c5 a6 Kc7 a7 Kb6 a8Q h4 d6 a3 e6 f4 d5 f3 d7 c4 d6 c3+ Kc2 h3 e7 a2 e8N f2 g6 Bb7 e5 Qg5 d8N Qf6 d7 Bc5 e6 Rh7 g7 Nc6 e7 Ne5 g5 Qf7 g6 Rh5 Bg2 f1B Na3 Be2 Nf6 Rh7 e8N Nc4 Nd6 Qf8 Bd2 Nh6 g8N Bf1 g7 Qe7 Nde4 Qd6 Nc6 Ng4 d8Q+ Qc7 Qe1 Bd6 Qf2+ Bc5 Nb4 Ba6 Ne7 Ka5 g8Q Rh4 b6 Be2 b7 Be3 b8B Nge5 Qb7 Bb5 Rc1 a1B Ba7 Be8 Nc5 Bf3 Ng6 Rf4 Ne2 Nd3 Rhf1 Bb2 Qd4 Qd6 Nh8 Qf8 Bh1 Rf5 Qdh4 Ba1 Qgg2 Rf4 Kb3 c2 Nc3 Bb2 N3a4 Bbd4 Rb1 c1B Kc2 Nd6 Rb3 Nb5 Rc3 Rf5 Nce4 Bb6 Rc8 Rf4 Nec5 Nd4+ Kc3 Nb3 Kc2 Rf5 Re1 Bf4 Re7 Bh2 Rf7 Bg1 Qh2 Be2 Bd5 Bf3 Qhg2 Rf4 Qd7 Rf5 Ba8 Rf4 Qb7 Rf5 Nce4 Be3 Nec5 Bfc6 Qe2 Rf1 Qef2 Bf3 Bb6#
kqr3R1/1Nn3nB/2B1QB2/n7/r1bKBpnR/Q6Q/2R3QB/2B1Nn2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Bb6 Bh3 Ba6 Bf1 Ba5 bxa5 Bc8 Kf2 Kd7 Ke3 f5 d4 c5 h4 Kc7 d6+ Kb7 h6 g5 b6 g4 d7 g3 h7 g2 a6+ Kc6 a7 Kb7 d5 c4 d6 a3 h5 c3 h6 c2 e6 a2 e7 Qf8 d8R Nc6 e8B Be6 d7 Qa3+ Qd3 Qe7 Qa3 Qh4 Nf3 g1N Ne1 Nge7 Nc3 Nd4 Ne4 Ng6 Nd6+ Kc6 b7 Qh5 b8B Qg4 Rh4 Ne7 Nb7 Qg6 Bh2 Rf8 h8Q Qg8 h7 Nh3 Qg7 Bc4 h8Q Nf2 Qg2+ Kb6 Rb1+ Nb5 Rb2 a1N Qhc3 Rc8 a8B Nb3 Bg6 Re8 Bh7 Nd2 Ra2 Nc7 Kd4 f4 e4 Qh8+ e5 Ng4 Bfd3 Nf1 Bde4 Rf8 Qch3 Nf5+ Kc3 Rf7 Rg8 Ng7 d8B Rf5 e6 Ra5 e7 Ka7 e8Q Ra4 Bf6 Kb8 Bd2 c1N Qe6 Nb3 Bc1 Na5 Kd4 Ka7 Nd8 Kb8 Bac6 Ka7 Nb7 Ka8 Rd8 Qf8 Re2 Qb4 Rg8 Qb6+ Qc5 Qa7 Rc2 Qb8 Qca3
bk4B1/1B2Q3/2B3R1/3R2qq/R2NRb2/QrB1R2N/1b2N2p/RKnn1b2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bb7 d5 Ra5 bxa5 Bc8 g4 Kd7 e4 f5 d4 c5 Kd2 Kc7 Kc2 h5 e6 c4 e7 c3 e8B a3 e5 f4 d6+ Kb7 a6+ Ka8 a7 a2 e6 f3 b6 f2 g6 h4 e7 h3 d5 h2 g7 Rh4 g5 Nc6 d7 Nh6 g8B Nb8 d6 Nf7 g6 Rh6 g7 Rf6 Qf3+ Nc6 Bd2 Nh6 Nh3 Ba6 Bg2 Bc8 Re1 f1B Re4 Kb7 a8R Rf7 Raa4 Kb8 b7 Qa5 d8Q Qh5 d7 Na5 Kc1 c2 Nc3 Rf4 Ne2 Ng4 Qa3 Nf2 Bc3 Nd1 Re3 Rb4 Re4 Ka7 b8N Rb3 Nc6+ Kb7 Ncd4 Kb8 Qb6+ Bb7 Qbc5 Ba8 d8R+ Kb7 Rd5 Kb8 Rb1 a1B Bc6 Kc7 e8R Bd6 Re3 Bf4 Re4 Kb8 Qe7 Bb2+ Kd2 Qg5 Ra1 c1Q+ Kd3 Qb1+ Kd2 Qa2 Kc2 Qh5 Qac5 Qa3 Kb1 Qb4 Bb7 Qb5 Qa3 Qg5 Bf3 Qe8 Bg4 Qeh5 Bd7 Rb6 Bdc6 Nb3 Be6 Nc1 g8R+ Qe8 Rg7 Rb3 Bg8 Qeh5 Rg6
r2q4/n1QNQ1nB/B1R1Q1r1/1p1b2n1/BR1N3n/q1B1B3/3KN1Q1/1kB5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 e6 g4 Kd7 h4 Nh6 g6 Be7 g7 Ba3 g5 Be7 g6 Bg5 hxg5 Ng8 Bc4 Ke7 Bf1 Ke8 d4 Ke7 a4 Kd6 f6 c5 a6 h5 f7 e5 f8Q+ Qe7 a5 e4 a7 c4 a6 c3 Na3 c2 Rh4 b6 Kd2 Bf5 Nb5+ Kd7 d6 Ke6 d5+ Ke5 d7 Qf7 d8B Bh3 d6 Bg4 d7 Qe8 Nd4 Nc6 Qe7+ Be6 Nge2 Nh6 g8Q Nf5 g7 Rh6 g6 Kd5 Qgf7 Kc4 g8Q Ng7 Qe1 Bd5 Ra5 Qf8 Rc5+ Kb4 Bc7 Qd8 Bf4 Ka4 Rg4 h4 Be3 h3 Qfe6 h2 Qg3 h1N Qc7 Nf2 Rf4 Qf8 d8B Nh3 Rg4 Ng5 Rc3 Rb8 a8B Na7 Rc6 Rc8 Bb7 Ra8 Bg2 Qe8 Bf3 b5 Rh4 Nc8 a7 Qd7 Ba6 Qd6 Nf5 Kb3 Nfd4+ Ka2 Bh5 Kb1 Bg4 Rb8 a8N Na7 Nb6 Ra8 Nd7 Qa3 Qg3 Qd6 Ba5 Qa3 Bc3 Qa5 Bg1 Qd8 Qc7 e3+ Ke1 Nh5 g7 Rg6 Bf5 Rh6 Bh7 Rg6 Ng3 e2 Kd2 e1N Be3 Ng2 Nge2 Nf7 Qh8 Ng5 g8B Ng7 Rf4 Nh5 Qhg7 Nh4 Bf7 Rh6 Qgg6 Ng7 Qge4 Rg6 Qg2 Bf3 Qeh3 Be4 Bb3 Bd5 Ba4 Ba2 Ba3 Bd5 Qhe6 c1Q+ Kd3 Qf1 Bac1 Qf3 Kd2 Qh3 Nb3 Qg3 Rfc4 Qd6 Nbd4 Qa3 Rb4+
NBn1Qq1b/6RQ/1q1R3R/1b5K/2N1BR2/r3NR2/2k1NpbB/Rq1b4 b - - 0 1 illegal: No possible last move
4R2R/1Rn1NN1Q/2qR4/2BnqBn1/2R3rQ/K2Bpq2/4Nq2/bk3B1R b - - 0 1 illegal: No possible last move
qn1r2RB/1n4R1/n5B1/1nQrBB1Q/K1n4k/RpB5/R1B2N2/3N2rN b - - 0 1 legal: proof: f4 a5 e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 Kf7 bxa5 Be6 h3 Bh6 f6 Ke8 g3 Bf7 f5 Bf4 gxf4 g3 Qf3 Bh5 Qd1 Bg4 hxg4 Ra7 Be2 Ra6 Bf1 Ra8 a4 Kf7 d4 e5 Kd2 h5 Kc2 c5 Kb3 b5 a6 b4 g5 h4 a7 h3 g6+ Kf8 g7+ Kf7 a5 g2 d6 h2 d5 e4 a6 e3 d7 c4+ Ka4 b3 d6 c3 Ra2 c2 Bd3 e2 Nc3 e1R Nge2 g1N Bd2 c1N Ng3 Nc6 Bc2 Ne5 Qh5+ Ng6 Nd1 Re6 Bc3 Ne7 g8R Qb8 d8R Rh7 d7 Nf3 Rg1 Nd5 Nh1 Qb7 Rde8 Nd3 d8B Qe7 Bc7 Re1 B7e5 Rd8 a8B Ng5 a7 N5b4 Be4 Na6 a8B Qb7 Re6 Nb8 Ra6 Qb6 Bac6 Rd5 Bd7 Qb7 Rg4 Qa8 Rg7+ Kf8 f7 Ke7 f8N+ Nf7 Ne6 Nb4 Nc5 Rg1 Nd3 Rh8 N3f2 Rd8 Ra7 N4a6 f6+ Kf8 f5 Nd6 f7 Ke7 Rg8 Nb5 f8B+ Kf7 Bfg7 Ke7 Bc7 Ne5 Bh8 Nc4 R4g6 Kf7 Be8+ Ke7 f6+ Ke6 f7+ Ke7 Ng3 h1N R6g7 Ke6 Bf5+ Ke7 Nd3 Nf2 Nh1 Ne4 N3f2 Ned6 Ra3 Nb7 B7e5 Rd4 Bfd3 R4d5 f8Q+ Ke6 Qc5 Rd4 Bh2 Kf6 Beg6 Rd5 Bdf5 Rd8 Qe2 Kg5 Be5 Kh4 Ra2 Nac7 Kb4 R4d7 R7a3 Nca6+ Ka4 Rd5 Qh5#
N2BKB2/p1NrQ3/BR4Nq/Q2Bb3/pq4kn/n6r/4Q2R/NbB2B2 b - - 0 1 illegal: Other
qRn1KQ2/B2R2RN/6p1/krnbN3/2N1B3/N2qQ2q/R2R2pR/6bQ b - - 0 1 illegal: Other
1Q2Q2R/Q2B4/BKBQpN2/2pq1n1R/1B1n2Bb/r4N2/b5Rb/1B1b1k2 b - - 0 1 illegal: No proof kernel
7R/qR5N/1B5N/rp1R1b1q/1N2p1Qb/2Q2Nr1/BRB1K1N1/qNk2r2 b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 bxa5 g4 c4 g3 cxd5 Nf6 h4 Nbd7 f4 Bg7 e5 Nf8 exf6 Bh6 f7+ Kd7 f6 Ne6 f5 Ng5 hxg5 Bf8 d4 Kd6 a4 b5 g6 c5 a6 Qa5+ Bd2 Qc3 a5 e5 g7 h5 g8N e4 a7 g2 a6 c4 Bd3 h4 Rh2 h3 Qg4 Bh6 f8Q+ Kd7 f7 Be3 d6 Kc6 d5+ Kc5 f6 Kb4 d7+ Kb3 d8R Kb2 d6 Be6 d7 Rc8 a8B Rc7 a7 Bd5 Nh6 Rc5 Qfg7 Bf4 f8N Rc6 f7 Rh7 Ng6 Rc8 f8N Rc5 Nh4 Be6 Bd5 Bg5 a8R Bf5 R1a7 Qd4 Bf7 c3 Be3 Qf6 Kf2 c2 Ba2 c1R Qh8 Re7 Nh7 R5c3 Rc7 Re6 Rb7 Ra6 Qg7 Rca3 Rh8 Rb3 d8N Ra5 Nc6 Re1 Bc5 Kc1 Nb4 Qa1 Rad8 Bf6 Rd5 Rf1+ Ke3 Rba3 Ngf3 Bd8 Nfg5 g1Q+ Rf2 h2 Ng2 h1Q Ba7 Qh4 Qe5 Qgh2 Rb2 Qh5 Ke2 Qg1 Bc2 Rg3 Nf3 Bh4 Qeg7 Qb6 Qc3 Qa6 Bg1 Qa7 Bb6
5N2/qnBBK2N/2b1p1Rq/1RRb1Q1k/2BbQ2n/1n4Q1/BQ2p1B1/3B4 b - - 0 1 illegal: Other
1Q1R1RR1/k3Nb1K/5Rr1/1rp1R3/p1B1Q3/2qqB1np/RBN1NN2/5n2 b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 Kd7 Ke3 c5 Kf4 Kc7 b4 Kb6 d4 h5 d6 a5 d7 a4 f6 e5+ Kf5 e4 d5 h4 f7 e3 f8R h3 d6 e2 Qd4 e1Q Na3 Nc6 Ra2 Nf6 g8R Rh6 g7 Nh5 g6 Ra6 Ne2 Kb7 b6 Qc7 b5 Qa5 Rf6 Nd8 Bb2 Rh8 Nc2 Qb8 Qe4+ Nc6 Rh2 Ka8 b7+ Ka7 Rh1 Qa8 b8B+ Kb7 b6 Qa7 Kg5 Nf4 d8R Rh6 d7 Qd2 Rdf8 Rh8 d8R Nd5+ Bf4 Nce7 Be3 Kb8 b7 Qc3 Rg1 Rh4 Rg3 Rf4 Kh6 Nf5+ Kh7 Rc6 Rg5 Ng3 Re5 Qa6 Bf2 Ka7 Be3 Qad3 b8Q+ Ka6 Rh8 Be6 g8N Rd6 g7 Bf7 Nh6 Rg4 g8N Rb6 Ne7 Rg6 Rf3 Rb5 Rhg8 Nb6 Rf4 Nc4 Ng4 Nd2 Rf6+ Qd6 Qc8+ Ka7 Nf2 Qa6 Nf4 Qd6 Bc4 Qdd3 Ne2 Ndf1 Qb8+
3B1b1Q/1N2QB2/q2R1nR1/1pb1B1Bp/2nq3k/1RR1N3/N3p1R1/1b1R2K1 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Bd7 f6 Ra5 f5 Bc8 f7+ Kd7 bxa3 Kd6 a4 Ra8 a5 Kd7 g5 h5 h3 b5 h4 Ra6 Qg4 Rf6 gxf6 g5 Qf3 g4 Qd1 Rh7 Nf3 Rg7 Ng1 Rg5 hxg5 Bb7 Qa4 Ba6 Qd1 Bc8 Kf2 e5 a4 c5 d4 c4 d6 c3 d5 e4 a6 c2 g6 Nh6 a5 Ng8 g7 Qc7 a7 Nh6 a8Q Qd8 g8R Bb7 a6 Bc8 a7 Qc7 Rg6 Be7 f8B Na6 f7 Nb8 f6 Qb7 Bg7 Qc6 f8R Bb7 f7 Bd8 Qe1 Qc8 Nd2 Bf6 Ne2 g3+ Kg1 g2 Nc3 e3 Ra3 Qc7 Na2 Qc8 Rc3 Be5 Rg8 Ng4 f8R Nh2 Bc4 Nf1 Rf3 Bd4 Be5 Bc5 R8g7+ Kd8 d7 Qc6 Rg8+ Ke7 d8N Qa6 Rfg3 Bc8 Nb7 Bf5 Rd8 Be4 Rdd6 Nd7 Qh8 Nf6 a8R Kf7 Rag8 e2+ Rge3 Ke7 Qh4 Bf5 Bb3 Kf7 Nc4 Nd2 Rc6 Bd3 d6 Ke6 d7+ Kf5 d8B Be4 Nb2 Nc4 Nd1 Bf8 Bd2 c1B Rd6 Bb1 Red3 Ba3 Bg5 Bc5+ Re3 Nb6 Bf7 Nc4 Rb3 Bb4 Rec3 Bc5+ Qf2+ Kg4 R8g7 Ba3 Qa7 Bc5+ Ne3+ Kf3 Kh2 Kf2 Rhd1 g1Q+ Kh3 Qg4+ Kh2 Qf4+ Kh1 Kg3 Kg1 Kh3 Na5 Qh4 Qe7 Qf4 Nb7 Qd4 Bh6 Kh4 Rg2 Qa8 R7g6 Qa6 Bg5+
q1b1BBK1/Qn5R/r3N1R1/1q2kB2/2rN1R2/1q3Rr1/RB2RbnQ/N3b3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 Kg5 e5 f4 a3 g7 e4 Kg6 h4 Kf7 e3 g5 a2 f5 h3 b7 h2 b6 e2 g6 e1Q Qe2 Ra3 Nf3 Qb4 Bb2 c1R Nbd2 Rc4 Nb3 Ra7 Bh3 Ne7 g8B Qa5 g7 Na6 b8Q+ Rcc7 b7 Ra8 Qa7 Rh6 b8R Rh8 Rb4 Kd7 d6 Ng6 d5 Nh4 Rf4 Qa3 Nfd4 Rh7 Rhe1 h1Q Qh2 Qg1 Re2 Qe3 Rh1 Rb7 Na1 Qc7 Bg4 Kd8+ d7 Qca5 Bh5 Kc7 d8N Be7 N8e6+ Kd6 Bg6 Rh6 B8h7 Rb4 g8R Ke5 d6 Ng2 d7 Rh3 d8R Qb5 Kg7 Rf3 f7 Rg3 f8B Bc5 f6 Rc4 f7 Bb4 Rd6 Nc5 Ra6 Be1 Kh8 Bf2 Bf5 Qab3 Bhg6 Nb7 Rg7 Be1 Kg8 Qe4 Bh5 Bf2 Rg6 Be1 Bc5 Bf2 f8R Be1 Rf6 Bf2 Bf8 Be1 Nac2 a1B Ra2 Bf2 Rf7 Be1 Rhf1 Bf2 Rh7 Be1 Qb6 Ra6 R1f3 Bf2 Qa7 Be1 Bc1 Bac3 Na1 Bf2 Bb2 Bb4 Rg5 Bbe1 Be8 Nc5 Rd2 Qa8 Rg6 Nb7 Re2+
R4BQ1/2N2n1B/2N1q2N/rn6/2r2nNB/R4K2/1Rq1r1N1/bqRkN1Qb b - - 0 1 illegal: No possible last move
3nR1K1/4QN1B/1b1R1RNN/2r3Rb/rnRn1Q2/2R1q1B1/4QQb1/1kbr4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 a3 f7 h3 g6 c4 g5 a2 f5 h2 b6 c3 d6 c2 g7 Kb3 b7 Rh7 f6 Rh3 g6 Ra6 Nc3 Rh7 Bd3 Qe8 d8Q Rb6 d7 Na6 b8R Rh3 Nce2 Ba3 f8R Nc7 f7 Be7 Bf4 Bh4 Rc1 a1B Bg3 Ka2 Nf4 Na8 Nf3 Bg5 Qe2 Rb4 Qe7 Nc7 d8R Nd5 Rd6 Nh6 g8R Rh5 g7 Ra4 Bh7 Nb4 Ng6 Ba6 Rhe1 h1B Rc8 Bg2 Rc3 Bf4+ Kf6 e5 b3 e4 Nfe5 e3 Rg1 Bb5 Rh8 Bbc6 g8N Bcf3 Kg7 Bb2 Rc4 Bd4 Rc3 Bb6 Rc4 Nc6 b4 Nd8 b5 Rf5 Rc3 Bh5 Rc4 Bg5 Rc3 Rf1 Rc4 Rd1 Rc3 Ng4 Nh6 Nf2 Kg8 Nd3 Rc4 Nb4 Rc3 Bc5 b6 Bd4 b7 Bb6 b8Q Bf4 Qa6 e2 Qba7 e1N Qe2 Nf3 Rc4 Ba5 Qaf2 Bb6 Rc3 Nd4 Rc4 Qb5 Re8 Be3 f8Q Qc5 Q8f4 Bd2 Nef7 Qg5 Rb1 c1R Rb3 Rc2 Rf6 Bc1 Rbc3 Qe5 Rd6 Qe3 Rf6 N8e6 Rd8 Kb1 Rd6 Nd8 Kg7 Ra5 Re8 Rca2 Kg8 Rc5 Rh1 Ra8 Rh4 Ra7 Rg4 Ra4 Rg5
2n1Q1q1/2R1BrR1/1Nrn1B2/Q2B1r1B/1KB3b1/R2bk3/5RNB/2nb2bN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 Kd2 c5 Kc3 h5 g4 a4 e6 Kd6 b6 h4 e7 a3 e8Q a2 b7 c4 e5+ Kc7 e6 Kb6 d6 f4 d5 f3 e7 f2 b5 Kc5 d7 h3 d6 h2 g6 Nh6 g7 Rh7 g8R Ra4 b6 Nf7 g5 Ne5 g6 Ng4 g7 Nc6 b8R Rh6 b7 Na7 Nh3 Ne5 Bb2 Rh8 Qe1 Qb6 d8N Nec6 d7 Rh6 Nd2 Nd4 Ne6+ Kd5 d8B Ra5 Rg1 h1B Rg2 Ndb5+ Kb4 c3 Nc4 c2 Bf6 c1N Bd3 f1B Nf2 Bd7 Rc8 Qc7 b8B Nd6 Rh2 Bf3 Nh1 Bd1 Rf2 Rh7 Be2 Ke4 Nf4 Rf5 Nb6 Ke3 Bc4+ Bfe2 Qc3+ Bd3 Bd5 Qc6 Rc7 Qa8 Qa3 Nac8 Qa5 Re5 Bc4 B7g4 Bd5 Rf5 Bc4 Ke4 Ng2 Qd5 Qh5 Qa8 e8B Rh6 Bfe7 Rhf6 Bg6 Rf7 Bf6 Qd5 Bde7 Qe6 Qh8 Qd5 Bh5 Qe6 Rb1 a1R Rb3 Ra2 Ra3 Rc2 Ba6 Rc6 Bc4 Ne8 Rb7 Qd5 Bh2 Qd8 Rc7 Ned6 Qh7 Qe8 Qg6 Qd8 Rh8 Qe8 g8B Bh6 Rh7 Be3 Rg7 Bd4 Rc2 Bg1 Rf2 Qd8 Nf4 Ke3 Bd5 Rf8 Qe8 Rf7 Bc4 Rf8 Bgd5 Rf7 Qd7 Qf8 Qe8 Qg8 Ng2#
2BrBk1N/3n2R1/5R2/1R3K1Q/1QQq1n2/1QQ2Bqr/1b1N1nbB/2n1n1Q1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 e5 Kf3 h5 Ke4 c5 f4 a5 b4 c4 d4 a4 g4 h4 g6 a3 b6 a2 b7 c3 d6 c2 g5 h3 f6 h2 f7+ Kd7 b5 Ne7 f5 Ng8 f6 Rh5 d5 Ra7 g7 Rh7 b6 Rh6 g6 Qe8 Qh5 Na6 b8Q Rb7 Bh3+ Qe6 Nf3 Ra7 b7 Ra8 Nbd2 Rh8 Qa7 Ne7 g8B Nc7 b8Q Nf5 g7 Ne3 Rb1 a1N Rg1 h1Q Qb3 Kd8 d7 Bb4 f8Q+ Ne8 f7 Qh2 Qfc5 Qf2 f8Q Rb8 Bf7 Qf6 g8B Ng4 Qcc3 Qg3 Nh4 Ba3 Ng6 Bb7 Qfb4 Nc7 Be8 Bb2 Qa6 Qd6 Qac4 Ne6 Kf5 e4 Rg2 Rh6 Nh8 Ke7 d8Q+ Kf8 Qdb6 Nf4 Qg1 e3 Be6 e2 Bc8 Nf2 Bg4 e1N Bf3 Qg7 Rg5 Qd4 Rg7 Ba8 Qhg6 Rh3 Qh5 Qe7 d6 Qc7 d7+ Qcd6 Bd1 Bg2 d8R Ra8 Bf3 Rb8 Q3a3 Nb3 Rdd7 Nc5 Qab3 Qc7 Rd6 Nd7 Nf1 Nd5 Bf4 c1N Bh2 Nf4 Nd2 Ra8 Ra1 Rb8 Ra5 Ra8 Rb5 Rb8 Bcb7 Rd8 Bc8 Qb7 Bd1 Qf3 Be2 Qg3 Bd1 Ncd3 Bf3 Nc1 Rf6+
b1Bb4/KR2n1k1/Q2b2Nn/1B3q1Q/1Q1B4/3rNbbR/q3NQ2/Q3QN1r b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 d4 h5 f4 c5 b4 a5 g4 a4 b6 h4 f6 h3 f5 c4 b7 h2 b5 c3 g6+ Ke8 f7+ Ke7 d6+ Kf6 b6 c2 d7 e4 d5 a3 Kd4 e3 d6 a2 Kc5 e2 g5+ Kg7 Qe1 Be7 f8N Ra3 Bb2+ Bf6 Bd4 c1B Nd2 Ra7 Rb1 Qe7 d8Q a1Q Qe8 Ra3 Nd7 Ra2 Ne5 Nc6 b8Q Na5 b7 Qc3+ Kb6 Rh3 d7 Qf8 d8Q Rg3 Qa8 Qf7 b8Q Qf8 Qdd6 Ra1 Ka7 Qb3 Qa6 Qe6 Rb7+ Kh8 g7+ Kh7 Qh5+ Nh6 g8N+ Qd7 g6+ Kg7 Ne7 Qh8 Nd5 Bd8 Ne3 Ba3 Qbd6 Rb1 Qb4 Qg8 Bh3 Qa2 Ndf1 Qdf7 Bg4 Be6 Bh3 Bd5 f6+ Kg8 g7 Bf3 Bc8 Ra1 Qbc4 Bd6 Qcb4 Kh7 g8B+ Kh8 Qeb1 e1B Ne2 Rh3 Bh7 Bg3 Bd3 Qg6 f7 Kg7 Bb5 Qf5 Q1e1 Rc1 Rg1 h1B Rg2 Rd1 Rh2 Rh4 Rh3 Rd3 Qb8 Bhg2 Qc7 Bh1 Qcc1 Bhg2 Qa1 Nc6+ Ka8 Ne7 Ka7 Kh8 f8Q+ Kh7 Qfe8 Kg7 Qc6 Bh1 Qcc1 Bhg2 Qf2 Bh1 Qce1 Bhg2 Rb6 Ba8 Rb8 Bgf3 Rb7 Be4 Rh1 Rh2 Be6 Bf3 Bc8 Rg2 Rh4 Rh2 Rh3 Rh1 Ng6+
1b4B1/N3b1nK/NQQ4R/Q1qnqQ1r/4Rb2/1N4RR/r1k2b1B/R2b2R1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 Kg6 a5 f4 c5 d4 e5 h4 e4 f6 c4 f7 c3 f5 a4 h6 c2 d6 Kb3 f6 a3 b6 e3 h5 a2 d7 e2 d5 e1Q h7 Qe6 h6 Qe1 d6 Qe2 b7 Qa5 d8Q Qe7 d7 Qae5 Qd6 Qe8 Nd2+ Ka4 b4 Qa5 b5 Qe6 b6 Be7 f8R Qc3 Qc6+ Kb4 Ne2 Na6 b8R Bd6 b7 Qee3 f7 Bc7 Rg1 Nc5 Re8 Nf6 f8Q Qce5 Nd4 Kc3 N2b3 Nd5 Bc4 Ne6 Qf5 Ra3 Ra8 Bb8 Qdb6 Ra7 Ba3 c1B d8Q Qf2 Bc5 Bf4 Nb5+ Kb2 Bd6 Qc5 Rg3 Ra5 Rh1 a1B Na7 Ra2 Rhg1 Bd7 Qa5 Bc8 Qdb6 Bd7 Kh5 g5 Kg6 g4 Re7 Ng7 Bc7 Qc3 Re4 Kc2 Bd6 Qe5 Bc7 Nc3 Bg8 Nd5 Bd6 Bc3 Bc7 Bb4 Bd6 Bc7 b8N Ba3 Na6 Bb8 Qc8 Ba4 Qcc6 Bb4 Bf7 Rf8 h8R Rc8 Rh7 Rh8 Bg8 Ba3 Rd3 g3 Bc7 g2 Rg3 Qc4 Nbc5 Qec3 Rg4 Bac1 Nb5 Ra1 Nb4+ Kd2 Qaa6 Bg5 Bh2 Bd1 Rg3 Ba3 Qa4 Kc1 Nb3+ Kb1 Ra5 Qe5 Na6 Bae7 Na7 Qc5 Qab5 Kc2 Qb4 Rb1 Ra1 Rb2 Q4a5 Ra2 Rd3 Nh5 Rg7 Bf4 h7 Qd4 Rh3 Qe5 Rf1 g1B Rfe1 Bf2 Rg1 B4g3 Kh6 Bgh4 R7g3 Ng7 Kg6 Bhg5 Bf7 Rd8 h8R Bf4 R8h5 Rd6+ Kh7 Rg6 Rh6 Rg5 Be6 Rh5 Bg8
R3Q2R/K1Q4N/nB3R1q/n1r2B2/rq1N1NNb/k2b3n/1nQR1R2/2Rn4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 a5 b4 e5 h4 g5 f4 c5 d4 e4 f6 e3 h6 g4 b6 e2 Kb5 e1N f5 c4 f7 a4 b7 c3 f6 c2 h7 g3 h5 a3 h6 a2 Nd2 g2 Bd3 Ra3 Ndf3 Nc6 b8R Bd7 Ra8 Na5+ Ka6 Bc6 b5 Be7 f8N Qc8+ Ka7 Qh3 b6 Qh4 b7 Rb3 b8N Rb5 f7 Rb2 Nbd7 Bb7 Nh3 g1N Be3 c1N Nf6 Rb3 Rh2 Nc2 Bf5 Nb4 Rf2 Ncd3 Rc1 Rc3 Qb3 a1Q Qc2 Bd8 Rd1 Qb2 Rc1 Kc7 d6+ Kc6 d5+ Kb5 Bb6 Rc6 d7 Rc8 d6 Na6 Ng6 Kb4 f8Q Qg5 Nge5 Rc5 Qe8 Be7 d8Q Ka3 d7 Be4 Qc8 Qc3 d8R Nb2 Rdd2 Bd3 Qc7 Qh4 Nfd7 Nf6 Nf8 Rg8 h8R Rg5 h7 Rg4 Rg8 Nd5 h8R Ra4 Rgg2 Qcb4 Rg6 Ne3 Nh7 Qh6 Ng4 Bh4 Nd4 Ned1 Nf4 Nh3 Rf6
1q1QBQQB/bN5B/4Q3/N1QRQrbK/1n6/q1Br4/3qRq2/n3Nb1k b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 b4 Ke4 f4 e5 d4 a5 b6 c5 b7 h6 d6 a4 g6 c4 b5 c3 d7 c2 d5 a3 f6 a2 b6 Ra4 g7 Ra3 d6 Ne7 g8Q Qe8 f7 Rh7 f5 Ra8 d8N Qa4 d7 Nbc6 b8B Qa3 b7 Nd5 f6 Ncb4 Qe2+ Ne3+ Kh5 Ra5 g4 Bc5 f8Q Ba7 Bb2 c1Q g5 Qd2 g6 Rc5 Qa6 Nec2 f7 Rd5 g7 Rd3 Bd6 Ke3 b8Q Kf2 Bc3 e4 Bg2 e3 Nf3 e2 Rd1 e1Q Nb7 Qe8 d8Q Bh3 Bh1 Bf1 Ne1 Kg1 Bc6 Qf2 Ba4 Kh1 Nd2 Qd7 Rab1 a1B Nc4 Qc8 Qbc7 Qb8 Nca5 Bb2 Ra1 Bc1 Ra2 Bg5 Bde5 Na1 Qfc5 Qd2 f8Q Qf2 Kg6 h5 Be8 h4 Re2 h3 Qae6 h2 Bed4 Rhh3 Q7e5 Rhf3 Kh5 Rf6 Qh7 Rf4 g8B Rf5 Qhg7 Kg1 Bh7 h1Q+ Kg6 Qg2 Kh5 Kh1 Qgg8 Rff3 Qg3 Rf5 Bh8 Re3 Rd7 Rd3 Qge5 Qd5 Rd6 Qda2 Rd4 Qd2 Rd5
kq3N1Q/2NR4/nB1K4/r3N2q/3RRb1R/R1n2bQ1/QR1n4/1nQ1bB1r b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 a5 Ke4 g5 Ke5 c5 f4 Kc7 h4 Kb7 d4 a4 b4 e6 f6 a3 b6 a2 b5 c4 f7 c3 f5 g4 h6 c2 h5 g3 d6 g2 h7 Ra3 h6 Qg5 d7 Rf3 d8R Bb4 f8N Qd2 d5 Qd3 f6 Rh3 f7 Qe2+ Be3 c1B d6 Ba5 d7 Qf3 Na3 Ka8 Kd6 Qh5 Nf3 g1N Ne5 Nf3 Qe2 Rg3 Rh4 Rg5 Re4 Na6 Qe1 Bcd2 Qc1 Nf6 Bf2 Bf4 b7+ Kb8 Bb6 Nd5 Rb1 a1Q Rb2 Qb1 Ra2 Rhg8 h8Q Nc3 h7 Nd2 Ra1 R8g7 Qg8 Qb3 h8Q Ndb1 Ra2 Rg1 Rh2 R7g5 Rh4 Rf5 Qg2 Rh1 Qa2 Qg6 Re8 Qg5 d8R Qh5 Rd7 Qb2 Red8 Rg5 Bc7+ Ka7 b8R Bb7 Qg8 Bc6 Ra8+ Kb7 b6 Bd5 Rb4 Bf3 Re4 Rf5 Qg3 Qb5 Ke7 Qb3 Nb5 Qb2 Ng4 e5 Rdd4 Qh2 R8d7 Qb2 Kd6 Qh2 Re2 e4+ Ne5 e3 Rb2 e2 Re4 e1N Rbb4 Qh8 Rbd4 Qh5 Bd8+ Nc7 Ra7+ Kb8 b7 Na6 Bb6 Nd3 Nh7 Ndc5 Nf8 Nb3 Nc7 N3d2 Qe6 Nc5 Qa2 Bb4 Ra3 Na6+ Ke6 Ba5 Kd6 Qg2 Nh7 Nb3 Bc5 Ne2 f8Q+ Qe8 Qge1 Qg5 Qg3 Be1 Qh8 N3d2 Nf8 Qgg6+ Nfe6 Qh5 Nf8 Bh6 Nf7 Nec3 Bb4 Ka7 b8R Ra5 Ne5 Bf4 Rb6 Qc8 Bc5 Qb7 Rb2+ Kb8 Nd5 Ka8 Bb6 Qb8+ Nc7+
k1NN3n/3b2QK/1n1r1QRR/1B5N/4nqrn/2Q2RN1/R1Rq1bR1/3bB3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 b4 Kb7 d4 a5 g4 h5 f6 c4 d6 a4 b6 c3 g6 e5+ Kg5 c2 f4 a3 d7 h4 f5 h3 d5 h2 b5 e4 g7 a2 Kg6 e3 d6 e2 g5 e1Q f7 Rh4 f6 Ra6 Qf3+ Nc6 Nd2 Rd4 Ne2 Rda4 Ng3 Rg4 Nc4 Re4 Kh7 Nh6 g8N Ng4 g6 Qa5 g7 Nd4 Qc3 Ne2 Bd2 c1N Be1 Qc7 d8N+ Kb8 d7 Nd3 b7 Nd4 Nb6 Bc5 f8Q Nge5 f7 Nb4 Nf6 Nf5 g8R Bf2 Rg6 Nh4 Qg7 Rg4 f8R Nf7 Nfh5 Nh8 Rf3 Nd5 Rg1 h1B Rg2 Ka7 b8R Qf4 Rc1 a1N Rc2 Nb3 Ra2 Bb7 Rc8 Nd2 Rcc6 Ne4 Nc8+ Ka8 b6 Qb4 Bb5 Qd4 Rh6 Qdd2 Rcg6 Bc6 b7+ Kb8 Ne6 Nb6 d8Q Be8 Qdf6 Bd7 Rh2 Bg2 Nd8 Bf1 Rg2 Be2 Nd6 Ka7 b8R Bd1 Rb7+ Ka8 Nc8 Ra4 Rc2 Rd4 Rc7 Rd6 Rc4 Bg1 Rb4 Be3 Rbb2 Bf2 Ra2+
3Q4/2B2B1r/RNBN1B1N/1q1Nn2b/1r1qR1B1/1n1k2n1/bQ1b3Q/2BK3b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 g4 c5 b6 h5 d6+ Ke6 d7 a4 g6 c4 g5 h4 b7 f4 g7 a3 g6 c3 b5 f3 b6 c2 d5+ Ke7 e6 Kd6 e7 Ke5 e8N a2 d6 h3 Qd4+ Ke6 e5 Kf5 e6 h2 e7 Ra6 Na3 Qc7 d8Q Nf6 g8B Nc6 b8Q Ne5 g7 Rh3 d7 Rg3 b7 Qc6 Be2 Nh5 Nc4 Rb6 Bf7 Rb4 g8N Rh3 Qb2 Ke4 Nh6 Ng3 Nb6 f2+ Kd2 f1B Bg4 Qb5 Ne2 Rh5 Nf4 Be2 Re1 h1B Nfd5 Bg7 Qd6 Bf6 b8B Bg5+ Ne3 Bb7 Bc7 Bd1 Re2 Bd5 Ke1 Be6 Ned5+ Kd3 Re4 Be2 Nf5 Rh7 Nh6 Ng6 Qf4 Ne5 Nd6 Bef3 e8B Bd1 Rb1 a1Q Qf2 Be3 Qh2 Qa7 Ra1 Bd2+ Kf2 Bdf3 Ra6 Be2 Ne7 Ba2 Nd5 Be3+ Ke1 Bd1 Bge6 Bh5 Bg4 Bf4 Qb8 Bg5 d8B Be3 Bf6 Bg5 Bf4 c1N Bc6 Nb3 Bc1 Bf4 Kd1 Bd2 Na4 Qab6 Qd8 Qd4 Nab6
bRn4B/1BnqbQNk/2NRN2r/2n5/1b1R1rB1/3Q1N2/4BK2/b1qN2N1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 Kg7 g4 a5 d4 e5 f6+ Kg6 f5+ Kf7 g6+ Ke8 b6 h5 f7+ Ke7 d6+ Kf6 g7 c5 d7 a4 g5+ Ke7 b5 e4 b7 h4 g6 Kf6 d5 a3 b6 h3 d6 c4 Nc3 h2 Qd3 e3 Bb2 a2 Rd1 a1Q Be2 Ne7 g8B Kg7 f6+ Kh6 g7 Na6 b8R Qa2 b7 Qb6 d8N Qa7 d7 Qb1 Nc6 Nc7 d8N Qc1 Nd4 Bd7 N8c6 Nc8 Ndf3 Be7 f8N Be8 Ncd4 Bc6 Nfe6 Be4 Bf7 Kh7 Nf5 Qd4 Ba1 Qd7 Bh5 Ra4 f7 Bc6 f8Q Bd5 Bf1 e2 Qf7 Be4 Kf2 e1B+ Kg2 Bc6 Bg4 Bd2 Kf2 Rb4 Ne4 c3 Be2 c2 Be5 Bd5 Nc3 Rf4 Bf6 Qb1 Be5 c1B Bd4 Bb2 Be5 Bdc1 Rd2 Ba1 Nd1 Bca3 Bf6 Rf8 Bc3 Bab4 Bd4 Bf6 Bb2 Qc1 g8B+ Kh8 Nfg7 Bfe7 Bc3 Rf6 Bh7 Rh6 Be4 Bc6 Qe3 Bd5 Rd4 Bc6 Qd3 Bd5 Qh5 Rf4 Qf7 Bc6 Ra8 Bd5 b8N Bc6 Ra6 Bb7 Rad6 Ba8 Qh5 Kg8 Bb7 Kh8 Nc6 Kg8 Qc4 Kh7 Qf7 Rh5 Re4 Bb2 Ba6 Bf6 Nh3 Qd2 Ne3 B4a3 Qd3 Be7 Rb1 Qc1 Ng1 Rh6 Nd1 Ba1 Rb8 Bb4 Bb7 h1N+ Ke1 Ng3 Kf2 Nf1 Be5 Nd2 Red4+ Rg6 Bf6 Nb3 Be5 Nc5 Ne8+ Kh6 Bh8 Rgf6 Ncd8 Rg6 N8g7 Kh7 Re4 Rgf6 Nc6 Rh6 Red4+
2N3rq/kbNK2n1/1R1n1QRn/b3B2N/5NrB/1R4RN/5nQr/1r1N3B b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Kc4 Kc7 d4 Kb6 b4 e5 f4 a5 h4 g5 d6 e4 Kd5 g4 d7 c4 Ke6 e3 d5 a4 d6 a3 h6 c3 h5 a2 h7 e2 h6 e1R+ Qe2 g3 f6 g2 f5 c2 f7 Ra4 f6 Ka7 b6+ Ka8 b7+ Ka7 b5 Rg4 Bf4 c1R Nh3 g1N Bg2 Ne7 Be5 Rg3 Nc3 Nd5 Nd1 Na6 b8R Ndb4 Rb6 Nf3 Rg1 Nc2 Bh1 Rgg8 Rg6 Qc7 Qg2 Bg7 f8Q Re4 f7 Bb7 d8N Qc8+ d7 Ncb4 Nc6+ Ka8 Ne7 Qe8 d8B Rec4 Rb1 a1N Rb3 Nh2 Rbg3 Bf6 Qg7 Nac2 f8N Bh4 Qf6 Rg4 Kd6 Nd4 Ne6 Ka7 Nc7 Qf8 Kd7 Nd3 Rc6 Kb8 b6 Ne6 Rc3 Ng7 Rb3 Bf3 b7 Nf2 Rb6 Ka7 b8R Rb1 Rb3 Be4 R8b6 Bb7 Nf5 Ne8 Ng7 Nd6 Nh5 Bg5 Be7 Bd2 Bd8 Ba5 Be7 Qb8 Bd8 Rf8 Be7 Rhg8 h8N Rc8 h7 Rcf8 Ne8 Nc7 Bd8 Ne6 Nc7 Ng7 Nf7 Bd2 Ng1 Rh8 Nh6 Bf3 Qg5 Nc4 Ng8 Rh4 Nhf6 Nhg4 Be7 Rh2 Nh3 Bb7 Nh5 Rf4 B7f6 Bb4 Ne7 Nh6 Qf5 Qa8 Bh4 Ba5 Qf6 Re8 h8N Re4 R6g4 Nd6 Nhg6 Rc8 Rg5 Rg4 Ngf4 Rh8 Rg6 Qg8 Ba1 Qh7 Bd4 Rg8 Be5 Qh8 Nc8+
4R2B/n1b1k3/1R2b1bq/BBNrrB2/R1rBQ3/b4NQN/B3KN2/rn6 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 e5 b4 h5 f4 c5 d4 a5 f6 c4 f5 e4 d6 a4 d7+ Kf7 b6 e3 b7 a3 b5 c3 d5 h4 b6 a2 d6 e2 Be3 c2 Nf3 c1R Nc3 h3 Ne4 h2 Bd4 Rb1 Nf2 Rb5 Qb1 Qe8 d8R Ne7 d7 Ra3 g6+ Kg8 g7 Kf7 g5 Rg8 Qe4 Na6 b8N Re5 b7 Nc7 Na6 Re3 b8Q Rh8 Nc5 Kg8 f7+ Kh7 g8B+ Kg7 g6 Kf6 g7 Ned5 Bh7 Rc3 g8B Be7 f8N Qh5 Re8 Rc4 d8B Qh6 Ng6 Nc3 Nf4 Be6 N4h3 N7b5 Ba5 Na7 Rb1 a1B Rb6 Nb1 Rg1 h1B Rg4 Bb2 Bg6 Ba3 Rf4 Nc3 Kd2 e1R Be2 Rb4 Bb5 Ra1 Qd6 Nb1+ Ke2 Bg2 Qc7 Bd6 Rh4 Bc8 Ba2 Rc4 Bh7 Rg8 Qb8 Kf7 f6 Be6 Bf5 Rd5 Rg4 Bh2 Qg3 Rg5 Re7+ Kf8 f7 Bh1 Qg1 Bc7 Qg3 Bd7 Re5 Be6 Rf4 Ke7 f8B+ Kd8 Bg7 Ke7 Bh8 Bg2 Kd1 Bf1 Ke1 Bd3 Kd1 Bc2+ Ke2 Bb8 Qe3 Kf7 Bd3+ Bf5 Bb4 Rc3 Re8 Bc7 Bdf6 Be6 Ba5 Rgf5 Rb4 Rc4 Bd4 Rfe5 Bh7 Bcf5 Ra4 Be4 Rd8 B4f5 Qe4 Ke7 Rdb8 Bg4 Rc8 Bh5 Bf5 Bg6 Re8+
6R1/1B2B1b1/3R3N/KbBR3R/N3qrB1/kr3bnp/n2n1Q2/r1N1B1BQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Kd7 Kd2 c5 Kc3 a5 g4 f5 b4 h5 e4 h4 b6 f4 e6+ Kd6 g6 f3 b5 c4 b7 f2 g7 a4 Kb4 c3 e5+ Ke7 g5 a3 d6+ Ke8 b6 c2 g6 a2 d5 Rh5 e7 Kd7 Ba3 c1R Ne2 Rh7 Nbc3 Nh6 g8R Rf7 g7 Ra6 Bg2 f1B Na4 Rc6 Nc1 Qc7 e8B+ Kd8 e6 Nf5 Bd7 Bb5 Qd2 Ra7 Qf2 Ba6 Ka5 Ne3 Bc5 Nf5 Rb1 a1N Rb5 Nc2 Rd1 h3 Rd4 Ne7 Rh4 Nf5 Rh5 Na1 Bf3 Ne3 Bg4 Rf4 Be8 Rf6 d7 Nf1 Bg6 Qg3 Be4 Qe3 Bg2 Rd6 B2f3 Ke7 d8R Rf4 Bg2 Nd7 b8B Ne5 b7 Qe4 Rb6 Ra8 Ba7 Bb5 b8B Nd3 Bc7 Ng3 Rc6 Kf6 e7 Nb4 e8Q Na2 Bh1 Re6 d6 Bb7 d7 Rb8 Rd6 Nb3+ Kb6 Nd2 Ka5 Ra8 Qg6+ Ke7 Bhf3 Qc4 Qb1 Re3 B7b6 Rc3 Bb4 Qe2 B6c5 Rb3 Bd5 Qe5 Qe4 B7c6 Qh1 Qe4 Bc3 Be2 B3b4 Bcb5 Bb7 Bf3 Bc3 Ndf1 Be1 Nd2 Rgh8 Kf7 g8N Bg7 Nh6+ Ke7 Rhf8 Rb8 Bd4 Be5 Rg6 Bd3 Qfh2 Bg7 Bd5 R3b4 Rg8 Rb1 Bg1 Ra1 Qf2 Rb3 Bb7 Bb5 Rgg5 Kd6 Rc5 Rf5 Rc6+ Kd5 Bc5 Kc4 Re6 Rf6 Ree5 Rf4 Rd5 Bf6 Ra8 Bg7 d8B Nf5 Bde7 Ng3 Nb6+ Kc3 Rad8 Kc2 R8d6 Kb2 Be3 Ka3 Na4 Bb2 Bb6 Bg7 Bc5+
kb2NN1K/n2q1B2/2b1qrB1/1q2B3/2N3RR/B1BQ2bB/2Rp3R/rQ3n2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 Kd7 Ke5 Kc7 h4 Kb7 b4 a5 c4 d4 f4 d3 h6 g4 b6 a4 h5 g3 f6 e6 h7 g2 c6+ Ka6 b7 Ka7 h6 a3 f7 a2 f5 Qa5+ c5 Qa3 b5 Qb3 c7 Nf6 c6 Ne8 b6+ Ka6 f6 Qa4 Ba3 Qb4 Rh2 Qc4 Ne2 g1Q Nd2 Qg6 Nf4 Qg2 Nd5 Qb4 Nc4 Rg8 h8B Bd7 c8B Rg6 c7 Qc5 h7 Qgg1 Bh3 Ng7 Rc1 Bc6 Rcc2 Nh5 Qf1 d2 Qd3 Bg7 f8R Qb5 Rg8 Ng3 Bf5 Bf8 f7 Rf6 Rg4 Nf1 Bg6 Bg7 f8N a1Q+ Rd4 Qab1 Rg4 Qa2 Bd7 Qg2 c8B Qh3 Bde8 Bh6 Bef7 Bf4+ Ke4 e5 Bd7 Rd6 Kf5 e4 Bc3 e3 h8R e2 Rh4 e1B Bc8 Be5 Nf6 B1g3 Ne8 Rf6+ Kg5 Bc7+ Kh6 Bcd6 Kh7 Bdf4 Nb2 Qe6 Nc4 Bd6 Kh8 Qd7 Rd4 Qhe6 Rhg4 Be4 Rgh4 Nc6 Rg4 Na7 b8Q+ Bb7 Rgh4 Bde5 Rdg4 Bef4 Qbd6 Be5 Qb4 Bb8 Qb1 Qde7 Bd7 Bc6 Rf4 Kb7 Rd4 Qe4 Bh3 Q4e6 Rde4 Q7d7 Reg4 Nc8 Bc1 Ra1 Ba3 Ka8 b7+ Ka7 Rf4 Bc7 b8B+ Ka8 Rfg4 Na7 Bab2 Bce5 Bd6 Bef4 Bda3 Bd6 Be5 Bb8 Bbc3
r1R2NQ1/1B3b1K/2R1r1nB/1rNRQ3/2R3R1/nRQqpq2/2BnkB1b/8 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 g4 c5 g6 h5 Kg5 e5+ f6 a5 f4 c4 d6 a4 d7 c3 b6 c2 g7 e4 Kg6 h4 d5 h3 f7 a3 g5 h2 b7 a2 f5 Qa5 d8B Qc7 d6 Ra4 d7 Qc3 f6 Rh4 Ne2 Kc4 b4 Rh5 b5 Nc6 b8Q Qd2 b6 Kd3 b7 Ra7 Qe1 Qb4 Nbc3 Rh4 Bg2 Rg4 Rg1 h1N Bb6 Ra8 d8R+ Qd6 Bf2 Rg3 Nd4 Na7 Ne6 Qd4 Rd5 Be7 f8R Rh3 f7 Rh8 Na4 Rh5 Qe5 Nb5 b8R Bd6 Qc3+ Ke2 Nac5 Na3 Rb3 Ng3 Bh1 Nf1 Rg4 Ba6 Rc8 Nd2 f8R Qd3 Rc6 Bc4 Rfc8 Bc7 Rab1 a1Q Nf8 Qa2 Rb4 Qb3 Ra4 Qb7 Rbb4 Ba2 Rb3 Bd6 Rc4 Ne7+ Kf6 Bb8 g8B Ng6 Bh7 Bc7 Kg7 e3 Bb2 c1R Kg8 Nh4 g6 Rf1 g7 Ng6 Ba1 Rf5 Bg2 Rf6 Bh1 Rb1 Be4 Re6 Bh1 Nh8 Bg6 Bd6 Kh7 Qf7 Bge4 Qf3 g8Q Ng6 Bg2 Qd4 Bc2 Qd3 Qb4 Bc7 Bd4 Bb8 Qc3 Rb2 Qc7 Rb1 Bg7 Rb2 Qe7 Bh2 Bh6 Rb1 Qc7 Rb2 Q7e5 Rb1 Rbb8 Rb5 Rdd4 Rf6 Re6 Qh3 Ra4 Rb2 Bh1 Bd5 Rac4 Rb3 Ra6 Bf7 Rbb4 Re6 Bb7 Rb1 Rac6 Qf3 Rd5 Rb3 Ra4 Rb6 Rab4 Rb5 Rb3
3N3n/Q1n1NN1k/Rb3Q1r/1B2Br2/pBK5/1Q3bq1/1r2B3/RBNnq1B1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 Kg7 f4 c5 b4 e5 g4 h5 d6 a5 b6 a4 g6 e4+ Kc4 e3 d4 e2 b5 e1R f6+ Kh6 f5+ Re3 f7 h4 d7 h3 d5 h2 g7 Qe7 d8N Qe6 f6 Nc6 g5+ Kh7 b7 Nh6 b8B Bd7 g8B+ Kg6 b6 Re1 b7 Be7 f8B Ra6 f7 Bc8 Ne2 Qf6 d6 Na7 d7 Qc6 Nbc3 Qg2 Qb3 Rb6 Be5 Nb5 b8Q Nc7 Nd5 Bb7 Be3 Qg3 Nc1 Rb5 Bf2 Re2 Qa7 Rb2 Be2 Bd6 Rf1 h1N Bg1 Nf2 Be7 Ba8 f8Q Nd1 Nf7 Bb7 d8N Ra5 Nb6 Bf3 Nc8 Rh7 Bed4 Bf4 Be5 Bd2 B7d6 Rb5 Qe7 Ba5 Re1 Bb6 Qf6+ Kh5 g6 Rh8 Ng5 Nf7 g7 Rh6 Bh7 Nh8 g8B Ra5 Bb1 Rb5 Kd3 Ra5 Bc4 Rb5 Qe7 Kg6 Ngf7 Kh7 Qf6 Ra5 Ne7 Rb5 Bf1 Ra5 Re2 Rb5 Rc2 Ra5 Bb5 c4+ Kd2 c3+ Kd3 Ne6 Kc4 Nc7 Rd2+ c2 Ba3 Nf2 Bb4 Nd1 Bd7 Rb5 Rd6 Ra5 Be2 Rb5 Bed4 Re5 Bb5 Rf5 Na2 c1Q+ Bdc3 Qe3 Be5 Qef2 Nc1 Qe1 Re6 Bc5 Ra6 Bf2 Ra3 Bb6 Ra1
2R5/1Nq1NR1Q/1Q2R1nR/2B2nKp/k1Nrb3/1qqrN2Q/1NBn4/2bN4 b - - 0 1 illegal: No possible last move
B1Q1b1Nn/4B1q1/1Q1R1b2/RpB3q1/N2nRr2/1k1K4/1BRb2r1/rBB2Q2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 f4 Kd6 a4 Kc5 h4 Kb4 d4 c5 h6 b5 h7 e5 a6 g5 f6 c4 h5 c3 f5 g4 h6 g3 f7 g2 a7 e4 d6 e3 d7 c2 d5 Qe8 d8Q Qe7 d6 Nd7 a5 Qe4 f6 Nc5 a6 Qe7 d7 Kb3 Nd2+ Kb4 Ra4+ Kc3 Rh2 Bb7 Re4 Nd3 Qb6 Qc5 d8R Qe5 Rd6 Rd8 a8B Bc8 a7 Bg7 f8B Ne1 f7 Bd7 Be7 Qg5 f8B Nf3 Qe1 Bd4 Qf2 Kb4 Kd3 Be8 Ne2 g1Q Nc3 e2 Na4 e1B Be2 Rc8 Qf1 Rc4 Rg2 Ba1 Rh2 Nd4 Bh5 Nf6 Bg6 Rg8 h8Q Ng4 h7 Nh6 Rf2 Rg7 Qg8 Bb2 h8B Nf7 Bh7 Rg6 Be5 Nh8 Qe6 Ba1 Qc8 Nf3 Beb2 Nd4 Rg4 Rg7 Ne4 Bd2 Nf6 Kb3 Re4 Rg6 Ng8 Q1g4 Ba3 Bac3 Bcb2 c1R Bc5 Ra1 Bh6 Bc1 Rc2 B1d2 Bd5 Qd7 a8R Qb7 Ra5 Qd7 Bef8 Qg7 Be7 Qg2 Re3 Ne2 Rc1 Be1 Ba8 Bf6 Re5 Rcg4 Ke3 Nd4 Rc4 R6g5 Bb1 Rf5 Kd3 Bc3 Bhc1 Bd2 Red5 Rff4 Re5 Qd5 Rc2 Rg2 Re3 Qdg5 Re4
1Q1nBqbb/2N1B3/kB1RQpnq/1b4n1/3Q2r1/1rBRB2N/N1K5/1B3Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 g4 c5 e4 Kc7 d4 Kb7 Kd2 h5 e6 a5 b6 a4 g6 h4 d6 h3 e5 c4 d5 c3+ Kc2 f6 b5 a3 d7 h2 g5 a2 e7 Rh4 e8B Ra5 d6 Ra6 e6 Rf4 e7 Ra7 g7 Rf5 g6 Na6 Be3 Rh5 Qd4 Qc7 d8B Nc5 d7 Ra4 Nh3 Rf5 Bd3 Ne4 Rd1 h1B Rd2 Nh6 g8Q Qb8 g7 Ng5 Qgc4 Bd5 g8Q Rf3 Qe6 Nhf7 Bg6 Bc6 Qf1 Bg7 Rd3 Bh8 Bc7 Rg3 d8B Ra3 Bh7 Rb3 Bd6 Rg4 Bc5 Qa8 Be4 Kb8 b7 Ne5 Bcb6 Ng6 Kc1 c2 Nc3 B6d7 Kd2 c1N Kc2 Ne2 Rad1 a1Q Na2 Nef4 Bf7 Nd5 Rc3 Ne5 Qa4 Qa6 e8N Rg2+ Bf2 Rb1 Qc6 Rg4 Kd2 Ng6 Nc7 Rb3 Be8 Nde7 Be1 Be6 Bf5 Bg8 Qe6 Nc6 Qac4 Qa3 Qcd3 Qf8 Be7 Ra3 Qdd6 Qb1 Bd3 Qb3 Bb1 Qb4 Kc2 Qf4 Qdd5 Rb3 Rf3 Nge5 Bc3 Ngf7 Rd4 Ncd8 Rfd3 Ng6 Qde5 Rh4 Rd6 Q4h6 Be3 Rd4 Qef4 Ka7 b8B+ Kb7 b6 Bd7 Ba7 Bb5 Qfe5 Rg4 Qd4 Bd7 Na8 Ka6 b7+ Bc6 b8Q Ng5 Bb6 Bb5 Nc7#
n4BN1/5k2/qN1q1p1B/7R/3Qr1N1/nrQb1K1N/1b2N1BB/R2RNbr1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 b4 c5 g4 a5 d4 c4 e4 f6 b6 h4 d6 c3 g6 a4 b7 h3 d5 c2 d7+ Ke7 g7 h2 d6+ Kf7 b5 a3 g5 a2 g6+ Ke6 b6 Rh4 Kf3 Qe7 d8R Rh5 d7 Qe8 Nc3 Qe7 Qd4 Na6 b8N Ra7 b7 Rh7 Nce2 Qd6 Nc6 Rh8 b8B Nc5 Nh3 Nh6 g8N Ra6 g7 Nf7 Nb4 Be7 Nd3 Rh4 Ne1 Rh5 Bh6 c1R Bg2 Ra4 Qc3 Na6 Bc7 Nh8 Bb8 Kf7 e6+ Kg6 e5 Nc7 Qd4 Nf7 Qc3 Bf8 e7 Re4 e8N Ba6 e6 Rb5 e7 Na8 Nc7 Rb3 e8Q Bd3 Qee5 Rd1 Qed4 Ne5+ Kg3 Kf7 Nd5 Rc1 Nb6 Nc4+ Kf3 Na3 Bc7 Qe6 Bb8 Bd6 Bc7 Be5 Bd6 Rcb1 Bf8 Rd1 Be3 Qd6 Nh6+ Kg6 Ng4 Kf7 g8N Rc1 Rb1 a1Q Beh6 Qa2 Ra1 Rcb1 Rf1 h1B Rc8 Rd1 d8B Rc1 Rc5 Rcb1 Bc7 Rd1 Qc2 Rdb1 Qe3 Bb2 Rh5 Rd1 Qc3 Rc1 Kf2 Rb1 Qed4 Rd1 Bf3 Bg2 Rg1 Bf1 Bg2 Nc4 Kf3 Qa6 Rh1 Na3 Bb8 Qb4 Be5 Qd6 Bh2 Rb1 Nc2 Re1 Nc1 Bfe2+ Kf2 Bb5 Rf1 Bec4 Kf3 Rd1 Rf2 Rg1 Rd2 Bf1 Rd1 Bbc4 Ne1 Bcd3 Ne2
2b1K1Nn/N2r1B2/BNpknR2/Q2qRb2/Q1r1q3/3R4/1NN2BN1/2Brb3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 a5 Ke4 e5 d4 h5 g4 a4 f4 a3 b4 h4 f6 a2 Kf5 h3 Kg6 e4 Kf7 e3 b6 h2 b7 e2 g6 e1R b5 Ra3 g5 Ree3 b6 Ra5 d6 Rg3 g7 Rh7 f5 Rg2 g6 Rh5 d5 Ra4 Nh3 Rd4 Ba6 Rh7 Re1 h1B Na3 Ra4 Re5 Rg1 Nc2 Nc6 b8B Rc4 b7 Rb4 Ba7 Re4 Nf4 Ra4 Ng2 Rg4 Bf2 Rhh4 b8Q Na5 Qb5+ Nc6 Qa5 Nge7 g8N Rh8 g7 Nb4 Rb1 a1Q Rb3 Rg5 Rd3 Nbc6 Qg4 Bb7 Qga4 Kc8 d7+ Kb8 d6 Rd1 Rb3 Rh7 Rd3 Qc8 d8N Qa2+ Ne6 Rg4 d7 Nd8+ Ke8 Rc4 f7 Ng6 f6 Nh8 Nc5 Ne6+ d8N Bd6 f8N c6 f7 Qc7 Nfd7+ Kc8 f8R Qb8 Qc3 Kc7 Nb6 Bc8 Ndb7 Be7 Qe1 Bh4 Qea5 Qa7 Rf6 Qa8 Bfe3 Be1 Nd6 Qb1 Bf2 Qb8 Nf4 Be4 Ng2 Bf5 Ncd7 Rc3 Ndc4 Qa8 Nb2 Rc4 Nf8 Qa2 Ng6 Qb3 N6e7 Qb5 Nh6 Qd5 g8B Kd6 Bf7 Qa7 Nhg8 Rg7 Nd7 Qad4 Nb6 Q5e4 Ned5 Qc5 Nc7+ Qcd5 Re3 Rh7 Nb5+ Kc5 Na7+ Kd6 Rd3 Rg7 Bg6 Rd7 Bf7
k1N1b3/2pR1q1B/QQB3r1/RBbB4/KN6/2NQB1Q1/1r1n1r1B/n1b1q3 b - - 0 1 illegal: No possible last move
2B3K1/1bp1R3/RrQB1rNr/R1R2QR1/qB3R2/7q/B1Nb1bn1/2k1nN2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 h5 f4 a5 d4 h4 g6 e6 g5 h3 f6 h2 f5 a4 f7 a3 d6 a2 b6 Bh6 f8Q Ra3 f6 Rf3 g7 Rd3 d7+ Qe7 d8B Qc5+ d5 Qe7 d6 Qf7 g6 Rd2 b7 Rc2 d7+ Kb3 Bf4 Bg5 Nd2+ Ka4 b4 Ka3 b5+ Kb2 b6 Qe8 f7 Rh4 Qf3 Rh6 Ba6 Rh4 Be7 Rh5 d8R Nh6 g8R Nf5 g7 Ng3 Nf1 Rh8 Qc6 Bh4 Rd5 Ne2 Nf3 Rh7 Bb4 Bf2 Kf6 e5 Ra5 e4 Nd4 e3 Bfd6 Nf4 Rc1 Rd2 Rcc5 a1R Nc2 e2 Rg1 h1Q Rg4 Ng2 Rf4 e1B Kg6 Nd7 b8R Rd5 b7 Qh3 Ra8 Kc1 b8R Bb7 Ra7 Qe7 Re8 Qeh4 Re7 Bd2 Qc8 Rb1 f8N Rh6+ Kf7 Rd3 Ng6 Ne5+ Kf8 Rd4 Qf5 Nd3 Kf7 Nde1 Kf8 Ba8 Bc8 Bb7 R7a6 Re4 Rh8 Q4g4 g8B Re6 Rhh7 Qgh4 Rhg7 Rf6+ Bf7 Rb3 Kg8 Rb2 Ba2 Rb1 Bc3 Rb6 Bb4 Q4g4 Nh8 Qgh4 Rg5 Q4g4 Ng6 Qgh4 Rf3 Qd4 Rf4 Qa1 Bc4 Qa4 Ba2
b2Q4/5b2/1bkNNrbN/N5Nq/4bBB1/KQpR2Q1/1R1n1Bnr/2QN4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 Kd7 d4 f5 Kd2 h5 Kc3 c5 Kb3 b5 a4 f4 e4 h4 e6+ Kd6 a6 f3 a7 b4 e5+ Kc7 d6+ Kc6 a5 h3 d7 f2 d5+ Kc7 e7 h2 e8Q Nh6 e6 Kd6 a6 Nf7 e7 Qb6 d8N Ne5 g6 Nbd7 g7 Nf3 g8N Nb8 g5 Qc6 g6 Kc7 d6+ Kb6 g7 Rh6 d7 Qb5 Be2 f1B Ne6 Rf6 Nc3 Bh3 Qd8+ Kc6 e8N Nh4 Ra3 Rg6 Bg4 Be7 Bf4 Ng2 Nf3 Rf6 Nfg5 Bb7 Nd6 c4+ Ka2 Qc5 Qc1 b3+ Kb2 Bf8 Nh6 Qb5 Rf1 h1B Nd1 Be7 Qg8 Bd8 Rf2 Bb6 d8B Nd7 Rc2 Rc8 a8N Ne5 a7 Nf3 Qf7 Qf5 g8Q Nd2 Bc7 Qa5 Bg3 Qb5 Bf2 Rb8 Qgg6 Rh8 Qd3 Qf5 Qg3 Qg6 Bb8 Qh5 Bc7 Nh4 Bb8 Be4 Qg8 Ng2 Qf7 Bc5 Nb6 Bg6 a8Q Rh7 Nd7 Bb6 Ndc5 Be4 Qa5 Ba8 Ncb7 Bg6 Qg8 Bf7 Qb4 Rh8 Qd8 Bg6 Ra7 c3+ Ka3 b2 Qb3 b1B Rb2 Bbe4 Ra4 Bf7 Rd4 Rh7 Rd3 Rh8 Bf3 Bf5 Bg4 B5g6 Ba7 Ba5 Bae3 Bb6 Bf4 Qh4 Nhf5 Rh5 Nh6 Qh3 Bf3 Qg4 Be2 Rh2 Bf3 Qh3 Bg4 Qh5 Na5+
N7/2QRp1br/2b5/2BB1BK1/nNQ1NR2/N1n1brNB/k2N1b1b/3q3Q b - - 0 1 illegal: No possible last move
K1n1R2N/1rpbN2b/B1k2bN1/4Q1NQ/1r4n1/q2RB1Q1/Q2Q3B/1bb4Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kd4 h5 b4 f5 g4 a4 e4 a3 b6 h4 d6 h3 Kd5 a2 d4 h2 e6+ Ke8 e5 f4 e7 Kd7 b5 f3 g6 f2 g5 Ra3 g7 Rhh3 g6 Rh5 b7 Rg3 b6 Rf3 Nc3 Nh6 g8N Rh4 g7 Rd3 Bf4 Rg4 Nh3 Nc6 b8B Nf7 b7 Qe8 Ba7 Rg5 b8Q Rh5 Qbb1 Rh7 Ng5 Rg3 Ba6 Nh8 Re1 Bb7 e6+ Kc8 Qa4 Qg6 e8Q+ Nd8+ Qac6 f1B e7 Qf6 Qh5 Bd3 e8Q Qf5+ Qe5 Ndf7 d7+ Kd8 Ne7 Ng6 g8Q h1B+ Re4 Rh3 Bh2 Bc8 Qc4 Qf2 Kc6 Nd6 d5 Qb2 Be3 Qa3 Qb7 Bc2 Rd1 a1B Qa2 Bb1 Rd3 Bb2 Qgg7 Bc1 Qg3 Bf3 Q7e5 Bg7 Qa8 Bf6 Qb7 Nh8 Ng6 Nhf7 Qa8 Nh6 Qb7 Bc2 Qbb1 Ng4 Qba1 Bd2 Qh1 Bc1 Nf4 Rh4 Rd2 Rh8 Qe6 Be5 Qf5 Ke7 d8N Be2 Ndf7 Nf6 Rd1 Re8 Nh8 Bb1 Rdd4 Be6 Rd1 Bg8 Nfg6+ Kd8 Rdd4 Bg4 Qff4 Re6 Rd1 Nc8+ Kb7 Kd7 d6 Bh7 Ka8 Bd4 Rd2 Re5 Qf5+ Kc6 d7 Ra5 d8Q Rb5 Rd1 Bh3 Re8+ Re4 Qff4 Rb7 Qf5 Be5 Qd3 Bg4 Nd5 Reb4 Qdc2+ Bc3 Rd3 Bh3 Qfe4 Bd7 Qd2 Ng4 Qe7 Bg7 Qee5 Bf6 Nde7#
1r5N/2k2Q2/nR3K2/4n2Q/R1rB2b1/NQ1n1Qb1/B3pRNR/n2rQq1Q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Ke4 a5 Ke5 g5 f4 g4 b4 c4 h4 c3 d4 g3 h6 g2 f6 c2 f5 a4 h5 a3 b6 e6 d6 a2 d5 Bb7 h7 Na6 b5 Nc5 f7 Qe8 f6 Ra4 h6 Na6 Qh5 Nc5 Nh3 g1N Bb2 c1N Na3 Bc8 b7 Na6 b8Q Rb4 b6 Be7 f8Q Nc7 f7 Ra4 b7 Ra8 Rh2 Bg5 Bc4 Qe7 Nf4 Nh3 Ng2 Bh4 Bd4 Nb3 Qa7 Bf2 b8R Nf6 Rb6 Rb8 Qa8 Rg8 h8Q Na6 h7 Rg4 Qfg7 Bh4 f8R Nf4 Qgf7 Bg3 Qhg8 Rh4 h8N Rg4 Qgh7 Rh4 Qf3 Rg4 Qfh5 Qf7 Qhe4 Rh4 Qe1 Rg4 Rb1 Na1 R1b4 Rh4 Ra4 Rg4 Re8 Rh4 Re7+ Kd8 d7 Kc7 Qb3 Qf8 Rf7 Ng4+ Ke4 e5 Kf5 Nh6+ Kf6 e4 Qbf3 e3 Qc6+ Kd8 Qb5 e2 Qbb3 Nd3 Qh1 Rb7 Qe1 Kc7 d8Q+ Kb8 Qe7 Bg4 d6 Kc8 d7+ Kc7 Kg5 Rb8 Rf5 Nf7+ Kf6 Nfe5+ Qef7 Nc2 Bd5 a1R Be6 Rd1 Rf4 Na1 Bc4 Qc8 Rf5 Rb7 d8Q+ Kb8 Qh1 Nf2 Qde7 Rg1 Qc6 Nfd3 Qb2 Bh3 Qeb4 Rf4 Qc1 Bg4 Bc3 Qc7 Qbb5 Kc8 Ba2 Rb8 Qa8 Qc5 Qbb3 Qf2 Qcb1 Rc4 Bd4 Rgc1 Rf3 Qf1 Rf2 Re1 Q1d1 Kd8 Qd2 Rd1 Qe1 Kc8 Qf3 Kd8 Qe6 Kc7 Qef7+
1NQ3nB/R1N1b1RQ/Br1r2Q1/1bKQqQn1/p1b5/1QB1B3/3Nk2r/6b1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 a5 Kd4 h5 g4 e6 b4 c6 f4 h4 b6 h3 b5 h2 g6+ Kf6 g5+ Kg7 d6 e5+ Kc5 e4 d4 e3 d5 e2 b7 e1R b6 Qd7 Nh3 Re4 Qb3 Re5 Ba6 Re7 Be3 Qe8 d7 Nf6 d8Q Rh4 d6 Nh7 f6+ Kh8 f5 Rc7 f7 Kg7 Nd2 Be7 Nf4 Rd7 Rhg1 h1B Nd5 Rh2 Nc7 Bd5 Rg3 Bc4 f8B+ Kg8 g7 Kf7 g6+ Kf6 g8Q Ke5 f6 Ng5 g7 a4 f7 Bb5 Qh7 Ra7 g8Q Bc4 Bd4+ Kf4 Bc3 Ra8 Rg4+ Ke3 Rf1 Ke2 Bfg7 Bb5 f8Q Ra7 Kd4 c5+ Kd5 c4 Rf7 Ra8 Kc5 Nc6 Bh8 Rb8 Rg7 Qh5 Qff5 Qe8 Rh4 Qh5 Qdf8 Rd8 Qhg6 Be6 Q8h7 Rd7 Qc8 Bg8 Bd4 c3 Be3 c2 Qbd5 c1B Rg4 Ra8 b8Q Rd8 Qbb7 Rb8 Qb3 Bgc4 Rf7 Nd4 Qbd5 Nc6 b7 Bb2 Rg3 Be5 Rg1 Bg3 Rg7 Bf2 Rf1 Bg1 Rf3 Bf6 d7 Ne7 Rf1 Ng8 Rb1 Re8 d8B Re6 Be7 Rb6 Rc1 Ra8 b8N Rd6 Bd8 Be7 Rc3 Ra7 Rd3 Rb7 Rc3 Bf8 Bf6 Rbb6 Rd3 Be7 Bc3 Qg4 Rd4 Qg3 Re4 Bf8 Ree7 Qe5 Ref7 Be7 Ne6 Bf8 Ra7 Be7 Nc7
3b1B2/BNn1kN2/3nNp1q/2R1Q1Bn/2b1nB2/3B1Q2/B2Q2br/R1K1N1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 c5 Kd2 h5 g4 a5 e4 h4 b4 a4 d6 a3 e6 c4 d7+ Ke7 e5 a2 g6 h3 g5 h2 d5 Rh7 g7 Na6 g6 Nf6 g8B Rh3 b6 Re3 g7 Rb3 b7 Ra7 b8B Rc7 b5 Rf3 b6 Nb4 b7 Nc2 Na3 Ne8 Nb5 Nd6 Bd3 Ne3 Bb2 c3+ Kc1 c2 Qd2 Rc6 Ba7 Ra6 b8B Nd1 Nd4 Rf4 Ngf3 Rc6 Ne1 Qb6 d8N Nf2 Nb7 Rg4 Rf1 Nfe4 Rf5 h1B Bc7 Ke8 e7 Rg1 Ne6 Bg2 Bd4 Kd7 e8N Be7 Bc3 Bd8 Rh5 Nc4 d6 Qe3 Bb2 Qh6 Bbd4 Rb6 Bc3 Rb2 Rg5 Kc6 d7 Kd5 Ned6 Kc6 Nbc5 Ba6 Ncb7 Kd5 Bh7 Kc6 g8Q Kd5 Qf8 Kc6 Nf5 Ncd6 Bg8 Bc4 Bcd4 Be7 d8B Kd7 Rh5 Bg5 Bf6 Bh4 Bg7 Bd8 Be3 f6 Bg5 Nc3 Bcb8 Nd5 Bf7 Nc7 Bg8 Qh7 Nh6 Qh8 Nf7 Qh6 Rb1 a1N Qe8+ Kc8 Qc6 Ra2 Qf3 Kd7 Rh1 Ke7 Rb5 Ra6 Rc5 Rc6 Kb2 c1N Kb1 Ne2 Kb2 Nc3 Kc1 N3d5 Qdf2 Ra6 Bgh7 Ra3 Bb1 Ke8 Q2e2 Ncb5 Kd1 Bh3 Nd4 Nf4 e6 Nc8 e7 Rf1 Bhd3 Nh5 Bbf4 Nc7 Qc2 Rc3 Ba2 Nd6 Kd2 Rb3 Ng2 Rb2 Rg1 Rfb1 Rc1 Nb3+ Kd1 Kd7 e8Q+ Kc8 Qce2 Nd2 Q8e5 Kd7 Ne6 N2e4 Qee3 Re2 Qd2 Ke7 Kc2 Rb6 Ra1 Rb1 Ra5 Rd1 Rc5 Rg1 Ne1 Rh2 Kc1 Bg2 Bf8+
4B1K1/n1QQ1Q2/2p2R2/1b3nB1/Nb1N2B1/3q1Q2/r1Q2bNr/RN2nbQk b - - 0 1 illegal: No possible last move
2QQ1R1q/8/NNq1R1n1/Q1B5/brrN2NN/1BN2pk1/2r3Q1/Bn1Kb2r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 e4 f5 b6 c5 b7 a4 h6 a3 b5 c4 h5 c3 d6+ Ke6 b6 a2 h7 c2 d5+ Kd7 h6 g4 e6+ Ke8 d7+ Ke7 d6+ Kf6 e7 Ke5 e8Q+ Qe7 d8Q g3 d7 f4 Nc3 g2 Qd5+ Kf6 e5+ Kf5 e6+ Kg4 Nf3 g1Q Ba3 Ra7 Nd4 Qg7 e7 Qg6 Bc5 Qg2 Bc4 Ra4 Rf1 Qg5 Bb3 Nc6 b8N Kg3 b7 Rb4 Na6 Qh4 b8N Nf6 Qa5 Ne4 d8Q Nd2 Nd7 Ne5 Nb6 Ng6 Qec6 Qgh1 e8N Nb1 Nf6 Bd7 Qcc8 Ba4 Ng4 c1R+ Ke2 Rg8 h8N Rc2+ Kd1 Bg7 Q5g5 Qc6 h7 f3 Re1 Bh6 Re6 Rg7 Qd2 Rc7 Qe2 Bd2 Qf1 Nf8 Ng6 Be1 h8B Qh5 Bg7 Qh8 Nh4 Ng6 Qe2 Nd2 Rc1 a1R Qf1 Nb1 Qh1 Rh2 Rc2 Ra2 Rce2 Rc2 Qg2+ Kf4 Re8 Rh3 R2e6 Rh1 Qf1 Kg3 Rf8 Qh6 Bf6 Qh8 Qg2+ Kf4 Bce7 Qg7 Ndf5 Qb7 Ne4 Qh8 Ba1 R7c4 Nc3 Qc6 Bc5 Qc7 Qf1 Qc6 Nd4+ Kg3 Qg2+
1NB2n2/1KQ1R3/2N2QbB/1Nr1QN2/N1qn3R/2p4q/nQ4Rn/b2N1kr1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 h4 g5 d4+ Ke4 f4 e5+ d6 a5 b4 c6 f6 a4 d5 g4 b6 g3 f7 g2 f5 a3 f6 a2 b7 Bh3 b5 Ra4 b6 Ra7 h6 Be7 f8Q Bg4 f7 Bd7 h5 Bf5 h7 Bg6 h6 Ra3 Qd2 Rh3 Nc3+ Kf5 Nf3 Kg4 Rg1 Kg3 Nh4 e4 Nd1 e3 Qb2 e2 Nf5+ Kh2 Bd2 e1Q Ba6 Bg5 d7 Rh5 d6 Qde8 d8N Q8e7 Ne6 Qg3 Ned4 Qh3 Nb5 Qe6 d7 Ne7 d8Q Rg8 h8Q Nd5 h7 Bf6 Bh6 Nc3 Qc7+ Be5 Rc1 a1N Qfd8 Nc2 f8N Qa2 Nd7 Nd4 Qdf6 Qf7 Re1 Na2 Rc2 Qe6 Re4 Kg1 Qhg7 Qeb3 h8R Kf1 Rh4 g1N Rh7 Qf7 Rg2 Ngf3 Qh8 Qb3 Re7 Nh2 Qhg7 Bg3 Qce5 Qc4+ Kd6 c5 Kc7 Be1 Qgf7 Bc3 Qh7 Nbc6 b8N Nd8 Bc8 N8e6+ Kb7 Nf8 Nc6 Rg5 Qd2 Ba1 Qb2 Qc2 Qhf7 c4 Nc5 c3 Na4 Qe2 Re6 Rh5 Qfc7 Qc4 Re7 Bf7 Rc2 Rg1 Rg2 Rg5 Ka6 Bg6 b7 Rg4 b8N Re4 Qc5 Re5 Kb7 Rd5 Q5d6 Rc5 Qde5
Q2nq2n/1R2b2b/BBBQN3/1qBn1N2/k1rN1QK1/p5NB/1n6/2r2BR1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 f5 g4 a5 d4 h5 b4 c5 e4 a4 d6 h4 d5 c4 b6 h3 g6 a3 b7 h2 b5 c3 g5 c2 g7 f4 e6+ Ke8 g6 Rh7 e7 Kd7 e8N Qc7 e5 Nc6 b8Q Ra4 e6+ Kd8 b6 Ra5 e7+ Kd7 b7 Rb5 Ne2 Nb4 Qa8 Ra5 b8Q Rh8 Rg1 h1N Nbc3 Qc6 Be3 c1N Bc5 Nf2 Nb5 Rh1 Rb1 Nh6 g8B Nb3 g7 Nfd3 Ng3 Nf7 Nd4 Nb2 Kg4 f3 Bh7 f2 g8B Ra6 Ng7 Ra4 Bhd3 Na5 N7f5 Nh8 Ba6 Nb7 Qc1 Nd8 Qf4 Qb5 Bh3 f1Q Qb6 Qfd3 Be6+ Ke8 Bf1 Qe4 Qc7 N4d3 Qb6 Rc4 Qbb8 Nb4 Bd7+ Kf7 e8B+ Kf6 Bc6 Be7 d7 Qe1 d6 Nd5 Bf7 Qe6 Bg8 Qf7 Qc7 Qe8 Be6 Bb7 Qd2 Ke5 Qd3 Ndf7 d8B Bc8 Qcb8 Bd7 Bdb6 Nd8 Qd1 Bc8 Ne2 Bb7 d7+ Ke4 Qa4 Kd3 Neg3+ Kc3 Qd6 Bc8 Qd1 Bb7 Qe2 Bc8 Qf2 Bb7 Qff4 Bc8 Nf3 Kb3 N3d4+ Ka4 Bf7 Nb7 d8N Be6 Bg6 Bg8 N8e6 Nd8 Bh3 Qf8 Bge8 Bh7 Bed7 Qe8 Bf1 Nc7 Bcg2 Nd5 Bc6 Rh2 Bh3 Rhc2 Qc1 R2c3 Qcf4 Rc1 Bd7 Nd3 Bc7 Qc6 Rb7 Nb2 B7b6 Qb5 Bc6
NQb3Bb/1p5Q/1nr3q1/2RN3q/1rRNQ3/B2KQr1B/kQ2BrQn/8 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 d4 c5 a4 e5 f4 h5 g4 e4 a6 e3 a5 h4 f6 h3 d6 Ke6 d7 Kd5 a7 Kc4 a6 h2 d5 Qa5 d8Q Qb5 f7 Kb4+ Qd3 c4 d6 c3 d7 Kb3 f5 Qb4 f6 Bc5 f8Q Bb6 g6 Qe7 f7 Bc5 g7 Rh3 g5 Rg3 g6 Qe8 Bh3 Bb4 Qfe7 Rf3 f8Q Qf7 Ba3 Nf6 g8B Nd5 g7 Qe6 Qde8 Qd6 d8Q Rf6 Qde4 c2 Qb6 c1R Nc3 Rf2+ Kd3 e2 Nf3 Rc2 Rhc1 h1Q Qff4 e1R Qec6 Qh6 Qfe3 Qg6 Bf7 Qh2 g8B Nd7 Qbd4 Rb8 a8N Nf6 a7 Ng4 Be8 Qe5 Qh7 Nh2 Bed7 Bd6 Bdg4 Qeh5 Ra2 Rb2 Qe5 Rb1 Rac2 Ref1 Qf6 Be5 Qfg7 Qf7 Qcf6 Nb6 Nd5 Qhg6 Rc4 Ka2 Nd4 Rb4 Be2 Rf3 Rc5 R1f2 R1c4 Qh5 Qg2 Qfg6 Qfh8 Bf6 Nac7 Be5 a8Q Bg7 Qa7 Ra8 Qb8 Ra6 Na8 Be5 Q8g7 Bf6 Qd7 Bh8 Qb5 Nd7 Qf7 Rc6 Qe7 Nb6 Qh7 Rb1 Qb4 Rb2 Qc3 Rb4 Qb2+
2b1kQ1r/1pKN1N1q/RBB1b3/B4BB1/RQNbrQb1/2q2Q2/2n5/2n2B2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 c5 Kf3 f5 Kf4 h5 g4 h4 e4 h3 a4 c4 d4 h2 g6 c3 a6 c2 e6 Rh5 Ke5 f4+ g5 f3 g7 f2 d6 Be7 a5 Rh3 a7 Ra3 a6 Bf8 g6 Rc3 d5 Rc7 d7+ Ke7 Bg5+ Nf6 g8Q c1Q g7 Qe3 Nh3 Rc2 Nd2 Rb2 Nc4 Qc1 Qf3 Re2 Ra4 Qe8 Qf7+ Kd8 g8B Rd2 e7+ Kc7 d8B+ Kd7 d6 Nh7 Bb6 Qd1 Q7f4 Qh5 e8N Nf6 Bh7 Nd5 Bf5+ Kc6 d7 Ne3 d8B Rd4 Rg1 h1B Nf6 Qb3 Nd7 Qc3 Ke6 Qh4 e5+ Re4 Ba5 Bb4 Bdb6 Bc5 Rg4 Bd4 Ke7 Qb2 Kd8 Qc3 e6 Qh7 e7 Nc2 e8B Bg2 Bh4 Bh1 Ng5 Bg2 Rg3 Bh3 Nf7 Bg4 Bf6 Qg8 Bg5 Qh7 Bd3 f1B Be2 Bfh3 Bf1 Kd5 Kc7 Nc6 Rg2 Rb8 a8Q N6b4 a7 Na2 Rd2 Nc1 Rd3 Qd2 Rda3 Qd3 Nf8 Be6 Nd7 Rd8 Qb8 Qd2 a8Q Qc3 Nf8 Bc8 Bb5 Be6 Nd7 Rg8 Qf8 Rh8 Nde5 Bc8 Qb4 Be6 Bg6 Bc8 Bc6+ Ke6 Nd7 Bf6 Nfd6 Ke7 Nf7+ Ke8 Bf5 Bd4 Bg6 Be6 Bf5 Bg4 Ra2 Qh1 R4a3 Qh2 Qb2 Qh7 Bb4 Bd5 Ra6 Be6 Nc5+ Kf8 B4a5 Qb4 Ra4 Qc3 Bd8 Bcd7 Bg5+ Kg7 Qd8 Bc8 Qdd6 Kg8 Qb4 Kg7 Qde5+ Kf8 Nd7+ Ke8 Qec5 Bh3 Qcd6 Bg4 Qf8+
2R2Rb1/4rRN1/3k1n2/r1qN2K1/1bRQpNQ1/r3B1Q1/b3pnR1/3R1N1B b - - 0 1 illegal: Other
2N1n1Nr/3r1R1B/b1N4K/BRp1n1pB/1Q3Nk1/3Rb1B1/n2B2Q1/1B2r1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 Kf4 a5 Kg5 f5 b4 f4 e4 a4 h4 g6 d4 f3 h6 a3 h7 a2 e6 f2 b6 Bd7 h5 Ba4 b5 Qd7 b7 Nh6 e5 Nc6 b8Q Nf5 h6 Nd6 b6 Nd8 b7 Bb5 Qg4 Nc6 Ne2 Rg8 h8N Nb4 h7 Nc8 d6+ Kd8 e7+ Ke8 d5 Qc7 Rh3 Qd8 Nbc3 Bg7 Nf7 Ra6 h8B Ba4 Nf4 Ra8 Qg2 Kd7 Bd2 Na7 Nb5 Nc2 Rd3 Qa5 Nh6 Rf8 Ng8 Bf6+ Kh6 Nc8 e8B+ Kd8 e6 g5 d7 Bd4 Be5 Ra7 Bg6 Nb4 Bh7 Be3 Nd6 Bb5 Be2 Qb6 Rf1 a1R Bh5 Bc4 B5g6 Ba6 Nh5 Rf6 Ne8 Ra5 Bg3 Rb5 Ne7 Rf8 Nef6 Rh8 Qf4 Ra8 b8R Ra7 Qh4 Qa5 Rb6 Nd6 Nc8 Kc7 e7 Qa1 Rb8 Qd1 Ng8 Na2 Qf4 Rb1 Qb4 Qc1 Rb5 Qe1 d8B+ Kd7 Rd4 Qc1 Ba5 Ne8 d6 Ke6 d7 Qe1 Rd5 Rc1 Bb1 Rb7 Rg1 f1N Rd3 Nh2 Rf1 Nf3 Rf2 Ne5 Rf7 Ng6 Nf4+ Ke5 d8N Rd7 Nf6 Kf5 Ng8+ Kg4 Nc6 Ne5 Rf5 Nf6 e8B Qg1 Bg6 Ne8 Rf7 Re1 Bh5#
5bB1/K1B1RpR1/8/QB1b3p/bNRR1Bnq/rR6/N1Q1N1Rr/n3kr2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 c4 Kg4 e4+ Kg3 b4 Kf2 g4 h5 e6 a5 e5 d5 e7 a4 e8Q a3 c6 a2 b6 Nd7 g6 Qe7 e6 Ngf6 g5 Nb8 c5 Na6 b5 Nh7 b7 Qd8 b8B Nf6 b6 Nc7 b7 Bd7 g7 Ng8 e7 Nf6 g8R Ne4 g6 Nd2 g7 Ra6 Bb5 Bf5 Nc3 Ra5 Rb1 a1R Rh4 Qd7 Qd8 Nc4 e8R Bc2 Re7 R5a4 Na2 Rh7 Rg4 Ra3 Ne2 Bb3 Qc2 Na8 Qa5 Nab6 c7 Na4 Rg6 Qg4+ Bf4 Qg3 c8R Qh4 c6 Ne3 c7 Nc5 Rd8 Ba4 Rb4 Rf1 c8R Ke1 Rcc6 Bb3 Bc7 Ba4 b8N Nb3+ Kc3 Na1+ Kd4 Bb3 Kc5 d4 Kb6 Ba4 Rg3 d3 Na6 d2 Ka7 Bb3 Rdd4 Bd5 Rcc4 d1B Qf5 Ba4 Rb3+ Kf2 N6b4 Ke1 Rg1 Qg5 Rh8 Qh4 g8B Rg7 Qc2 Rg2 Rh7 Rh2 Rg2 Ng4 Rg7
3B3q/nRRKR1N1/1b6/2Q3r1/1k2B1nr/2N1BpR1/pBQ1bNqR/4R2r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 e4 f6 d4 c4 b4 g4 h4 c3 d6 g3 d5 c2 e6+ Ke8 h6 a4 b6 a3 h5 a2 b7 g2 b5 Nc6 b8Q Qd7 b6 Qe7 b7 Na7 e5 Qg7 h7 Qg3 d7+ Ke7 d8R Bd7 h6 Be8 Nc3 Ba4 Qc7+ Bd7 b8R Qh4 Rh3 Qe1 Rdc8 Qd2 Rg3 Bg7 Rb7 Qd4 Bd3 Qc4 Nh3 g1Q Be3 c1R Qc2 Qc5 Nf2 Qa5 Be4 Rf1 Re1 Qg2 Qc4 Rh1 Rcc7 Qb4 Qb5 Qb2 d6+ Kd8 Qc4 Bb5 Qc5 Be2 e7+ Ke8 Ke6 f5 Ng4 Nf6 Nf2 Rg8 h8B f4 h7 Bf8 Bg7 f3 h8R Ng4 Rh2 Rd8 Kd5 Kf7 e8N+ Rd7 Bf6 Rg5 Ng7 Re7 d7 Re6 Qa3 Bc5 d8B+ Kf8 Qa5 Bb6 Qc5+ Re7 Kd6 Rf7 Nf5 Rh7 e6 Rh4 e7+ Kf7 Bh8 Qa1 Ng7 Kf6 Qc6 Qb2 Kd7+ Ke5 Bd2 Kd4 e8R Qa1 Re7 Qb2 Bf4 Qa1 Bd6 Qb2 Bc5+ Kc4 Be3+ Kb4 Nf5 Bd3 Be5 Be2 Ng7 Qb3 Bf6 Qg8 Be5 Qh8 Qc4+ Ka5 Qc5+ Ka6 Nb5 Ka5 Bb2 Rd5+ Qd6 Rg5 Qdc6 Kb4 Nc3 Rf5 Qd5 Rg5 Qc5+
b3R3/Q2BqNBR/2R1n3/KB2N3/R2b2R1/nr1p1NRN/1k5p/r1Q2qq1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 e5 Kb4 h5 g4 d5 c4 d4 f4 a6 b6 e4 g6+ Kf6 b7 h4 g5+ Kg7 Nd2 e3 Ndf3 e2 Ra4 Rh6 f6+ Kh8 g7+ Kh7 f7 Kg6 f5+ Kh7 f6 Kg6 Nh3 Kf5 g6 Qe7 Ka5 Ke4 b4 e1Q c6 Rh7 c7 Qd6 c5 Be7 f8R Qe3 c6 Nd7 b8Q Nh6 g8N Nc5 b5 Bb7 c8R Nf7 c7 Qg1 b6 Ne6 g7 Ne5 f7 Bf6 Nh6 Qe7 g8R Ra7 Bb2 Ba8 Bc4 d3 Rfe8 Bh8 f8R Ke3 Nf2 h3 b7 h2 Rg4 Rf7 Nh3 Rf4 Bb5 Rb4 Rf5 Rb3 Rh5 Bg7 Nf7 Bh8 Kb6 a5 Rh7 Qf1 Rhg1 Nc4+ Kc6 Bg7 R1g3 Na3 Qc1+ Ke2 Kb6 Bd4+ Qc5 Kd1 Bc3 Bf2 Bf6 Bd4 Bg7 Be5 Qe3 Kc2 Qf4 Kb1 Qc1+ Ka2 Rcd8 Bb2 c8B Bf6 Rd5 Bd4+ Rc5 Qg1 Bd7 Qf1 Rb4 a4 Qc7 Qg1 b8N Ra5 Nc6 Qf1 Qe3 Kb2 Nce5 Nb1 Qe1 Qg1 Rh5 a3 Qa7 a2 Rh7 a1Q Rc4 Ra2 Ra4 Na3 Ka5 Qd1 Rcc4 Ra1 Rc6 Qc1 Qe3 Qcf1 Qc1+
2BR3r/4B3/n2Q1R2/1Q1B3B/1q1N1q1b/1pn1Nb2/QKR1pQ1k/B1Br2q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc3 b5 a4 c5 f4 e5 h4 g5 a6 c4 h6 g4 h5 b4+ Kb2 b3 a5 g3 h7 g2 f6 e4 f7 e3 f5 e2 a7 Qd7 h6 Qe7 a6 Qd7 f6 Qe7 Na3 Qe6 Qd2 Bg7 f8Q+ Qe7 f7 Nf6 Nf3 g1Q Nc2 Rg8 h8B Bf5 h7 Nc6 Ne3 Bh6 Ra2 Be4 Bh3 Rg7 Bc8 Qh2 Rf1 Rb8 a8B Rg3 a7 Kc7 d6+ Kb6 d5 Kc5 d7 Kd6 d8B Bg5 Bab7 Bh4 a8B Qg1 Nd4 Ke5 d6 Nb4 d7 Na6 Bd5 Qb4 Be7 Bf3 d8R Kf4 Bg7 Ne4 h8Q Rg4 Qh5 Kg3 Bac6 Nc3 Be8 Kh2 Rf2+ Bg2 Rf6 Bf3 Qf5 Rg6 Qd7 Rg2 Qb5 Rf2 Bh8 Rf1 Qh6 Rd1 f8Q Nb1 Bh5 c3+ Ka1 c2 Kb2 Nc3 Qf4+ Qg3 Qd6 Qe5 Qg7 Qf4 Qg3+ Kh1 Qge1+ Kh2 Qf2+ Bg2 Ka1 Rb7 Nc6 Qe5 Re6 Rf1 Bg5 Rh7 Be7 Nd1+ Bb2 Qef4 Bhd4 Re1 Rf6 Rh8 Bdc3 Rf1 Nd4 Rh1 Qdd3 c1Q+ Qb1 Re1 Ba3 Rg1 Rd2 Rf1 Bcb2 Nc3 Rc2 Qe1 Bc1 Rh1 Bab2 Rg1 Qa2 Rh1 Qf1 Qeg3 Qf2 Rd1 Qe1 Bf3 Qf1 Na4 Kb1 Qg8 Ba1 Nc3+ Kb2 Qg1 Qf2+
4Qn1r/2k1BR1q/K2Bq3/n5NQ/pB3B1b/1b3N1r/p1R1R3/BB2N1Nr b - - 0 1 illegal: Other
B2nrqNR/RNb1Q3/2kn2Q1/4QR1Q/p1q1R1R1/1qRp1B2/7K/B4r1b b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 g5 f4 d5 Kf2 Kd7 Kg3 a5 h4 e5 b4 d4 c6+ Kd6 c5+ Kd5 b6 e4 c7 e3 f6 d3 h6 e2 h5 e1Q+ Kh2 g4 b7 Qee7 b5 Bd7 c8R Ra6 h7 Qe2+ Bg2+ Qe4 f7 Qf3 h6 Qh4+ Nh3 Rf6 b6 Bb5 c6 Rd6 c7 Rc6 f5 Rc3 f6 Bd7 Bb2 Kd6 Na3 Qg5 Nb5+ Kc6 Rg1 Rb3 Nf2 Ne7 Nd6 Rb4 Nfe4 Qfe3 Bf3 Na6 b8Q Nd5 b7 Bg7 f8Q Be8 f7 Nc3 Qe7 Qf5 f8R Qd4 Nf6+ Ne4 Ng8 Qc4 Rf6 Qfe6 Rf5 Nc5 Qe2 Ra4 Qg2 Be5+ Qg3 Qf6 Ra3 Rb4 Ba1 Ne6 Rc3 Bd7 Re8 a4 c8B Nd8 Rg2 Qf8 Qc7+ Kd5 b8R Rb1 Ra8 Rf1 Bb7+ Bc6 Ra7 Qb3 Ba8 Qc4 Rf4 Bb7 Qa5+ Kc6 Rf6 Bf4 Qh5 Be5 Rf5 Bf4 Nc8 Bb8 Qge5 Bc7 Nd6 g3+ Kh3 Rd1 Qg6 Rf1 Rg1 g2 Kh2 Kb6 Ra3 Bc6 Nb7 Nd6 Rc3 Be4 Nf6 Rg8 h8Q Kc6 h7 Bd5 Qhg7 Be4 h8R Bd5 Q7h7 Be4 Rh1 Bd5 Qhh5 g1Q+ Kh3 Qf2 Rg1 Qa2 Rg4 Qb3 Kh2 Rg7 Be2 Bh1 Ng8 Rf7 Rff4 Rf6 Re4 Re6 Bf3 Qf7 Rf8 Qg7 Qef7 Re8 Qfe7 Qh6 Rff4 Qf8 Rf5
q2b1R1r/1nNRR1BQ/B7/Q4b1p/K1R5/4prRR/QBk1NB1r/1q4n1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 d4 h5 Kd2 c5 Kc3 c4 f6 Kg6 f5+ Kh7 f7 a4 b6 a3 f6 Kg6 b5 e4 b7 a2 d6 e3 Kb4 c3 b6 c2 d5 Nd7 b8R Ne7 b7 Nf5 Qe2 Bg7 f8R Ng3 f7 Ra6 Rh3 Nb6 d7 Rh7 d6 Bf6 Na3 Rh8 Nb5 Nh1 Nc7 Qe8 d8R Ra5 d7 Bd4 Bb2 Ng3 Rc1 Kg7 g6 Kf6 g5+ Kf5 g7 Ke4 g8R a1R g6 Nh1 g7 Rf5 Ra8 Rf4 b8B Nf2 Ra7 Ra2 Qc4 Rf3 Ne2 Na4 Kb5 Ra3 Qa2 Kd3 Rb7 Qe4 Rde8 Bc5 Re7 Bb6 d8Q+ Qd5+ Kb4 Nc5 Ra7 Nb7 Rd7 Rb3+ Ka4 Nd6 Qg5 Qa8 Qa5 Rc3 Nd5 Nb7 Bg3 Bd8 Nc7+ Nd6 Re7 Bf5 Bh4 Nb7 Bg3 Nh1 Bf2 Rb3 Nc3+ Kd2 Ba6 Ng3 Ne2+ Rc3 Ra1 c1Q Rb1 Qf1 Rc1 Qh1 Rc2+ Kd1 Rd7+ Rd3 Rc4 Rd2 Re8 Rf4 f8B Qe4 Ree7 Qb1 Re8 Rf3 Ree7 Rh6 Rh8 Rh7 g8Q Rh6 Bfg7 Rh7 Rce4 Kc2 Qgf7 Rh6 Rf8 Rh8 Qg8 Rd5 Qh7 Rd2 Nc3 Ne2 Rc4 Nd6 Rb7 Ng1 Rb6 Nb7 Rg6 Re2 Rgg3 Rd2 Be1 Rg2 Bf2 Rh2 Ne2#
4R1KQ/R2NR3/r2nN1RB/1r1Bb1pq/2nqp2Q/BbBBk3/2Q1B2b/8 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 c4 g5 f4 a5 b4 a4 h4 a3 b6 a2 b5 e6 h6 Ra7 b7 Ra8 b6 Qd6 c6 Qb4 h5 Qb2+ Nc3 Qc2 c5 Qb1 c7 Qb5 h7 Ra7 c6 Ra3 h6 Na6 b8R Bd7 c8B Ra5 c7 Qe2 b7 Qf3 Nge2 Qg4 Na4 Bb4 Nc5 Bb5 Nd7+ Ke7 Ke5 d4 f6+ Kf7 f5 d3 Bd2 Bc5 Bc3 d2 Qc2 d1Q Nf4 Nb4 Be2 Nd5 Re1 Ke8 f7+ Ke7 f8B+ Kf7 f6 Bg1 Ba3 Qd4+ Kd6 e5 Ne6 Qg2 Ra8 Ra7 b8R Qh3 Rb6 Bh2 Bb7 Ba4 c8B Ne3+ Bd5 Qh5 Bca6 Ne7 Bad3 Bb3 Re8 Ra6 Rc6 Rg8 h8Q Rg6 h7 Nc8+ Kc7 Rh6 Kd8 Nc4 Rb6 N8d6 Rc6 Qe4 Re7+ Kg6 f7 Kf5 f8B Rf6 Bh6 Ra5 Re8 Rb5 Ke7 Rg6 Kf8 Rf6+ Kg8 Rg6+ Ng7+ Kf4 Ra6 Ke3 Ra7 Rf6 Ne6 Qd4 Rab1 Ba4 Rb4 Bb3 Rba4 a1B R4a6 Ba4 Qg7 Bb2 h8Q Bb3 Qgh7 Ba1 Qf5 Bb2 Qg4 Ba1 Qh4 e4 Rc1 Ra5 Rc6 Ra6 Rf1 Rf5 Rcc7 Re5 Rf6 Rf5 Rg6 Bb2 Bb7 Rb5 Bd5 Nf5 Nf6 Qb6 Rce7 Nfd6 Bcb4 Bbe5 Nd7 Qd4 Bc3
r1k5/R3Rr2/N1Q1N2q/1Rbp2N1/1nRp1nN1/1b1BQK2/n4BQ1/1N2qN2 b - - 0 1 illegal: Other
2nR1Nq1/3qnQN1/NQ1BBp2/K2pb3/NQrQ2b1/2r1RN1B/4k3/3qN3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 c4 Kg4 e4+ Kh4 h6 g5 e6 d5 e5 g4 b6 g3 e7 f6 e8N a6 b7 g2 h7 Bh6 e6 Ne7 c6 Qd6+ c5 Qc7 Bf4 Bg7 Bd6 Bd7 Nf3+ Kg4 h4 g1Q h5 Ra7 h6 Qg3 Na3 Bc8 Nc2 Bd7 Nce1 Nc8 e7 Nb6 Ka5 Qg2 b4 Ra8 b5 Rg8 h8N Nc8+ b6 Qg3 h7 Qh3 Ra3 Qg3 Qd4+ Qf4 Ng6 Ra7 h8Q Qd8 c7 Bc6 Rd3 Bd7 c6 Bh6 Nf8 Bf5 Bg2 Qd7 Bh3+ Kg3 Qh7 Bg4 Qhe4 Rg7 Qb4 Kf2 Qed4+ Ke2 Rg1 Rg5 Ng7 Qg3 e8Q+ Re5 Qe7 Bf4 Qf7 Re3 Rh1 Be5 Rg1 Ne7 c8N Ra8 c7 Nbc6+ Ka4 a5 b8N Re4 b7 Ra6 Kb5 a4 Nb6 a3 c8B a2 Na4 a1Q Rh1 Ra7 Na6 Qd1 b8Q Rc7 Qbb6 Na7+ Ka5 Rc3 Rg1 Qd8 Bf5 Qd7 Be6 Nac8 Rh1 Bf5 Rg1 Qg6 Rg5 Bg4 Rh5 Rf4 Rh8 Qg5 Nh7 Re4 Rd8 Rf4 Nf8 Re4 Qdc5 Rec4 Qd4 Qg6 Ne8 Qh7 Ng7 Qg8 Re3+
1Q5B/1Bk3p1/BRB2rRQ/nbr3p1/q2rB1qR/1Nn3bN/7Q/1BR3K1 b - - 0 1 illegal: Other
kr2N2Q/n1K1N1p1/QBQQ2Rb/p1nR3Q/r3b3/N2qqBb1/3B4/6QB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 f5 Kf4 a5 e4 c5 b4 Kc7 h4 Kb7 d4 c4 e6 c3 Ke5 f4 h6 c2 b6 f3 b5 f2 e7 Nf6 e8B Ba3 h5 Ra6 h7 Ng8 h6 Be7 d6 Ra7 d7 Ra8 d5 Bg5 Kd6 Nf6 e5 Bh4 e6 Nc6 e7 Kb8 b7 Nh5 Nf3 Nf6 Ne5 Rg8 h8Q Nh5 h7 Nb4 Na3 Nf6 Bh5 Ka7 e8N Nc6 Bg2 f1Q b6+ Ka6 b8Q Bg3 b7 Bh4 Ng6 Qf3 Qg1 Qh3 Bhf3 Qg4 Qc7 Qd4 b8Q Qe4 Bd2 c1B Ne7 Bb2 Rd1 Bb7 Qbc8 Na7 Qc6+ Qb6 d8B Rf8 Rh2 Rb8 Bh1 Bc1 Rg2 Qd3 Rg6 Ne4+ Kd7 Rf4 d6 Bg3 Bc7 Nb5 Kd8 Ka7 d7 Qf2 Bb6+ Ka8 Bc7 Nf6 Bb6 Na7 Kc7 Qfe3 d8Q Ra4+ Qdd6 Ne4 Qe6 Nc5 Qc4 Bb2 Qa6 Bc3 Qg8 Bf6 h8Q Bg5 Qgd5 B5f4 Qdh5 Bh6 Rb1 Qc2 Rb5 Qcd3 Qd7 Be4 Qe6 Nd7 Rd5 Nc5 Qd7 Qf2 Qdb5 Qfe3 Qc6+
n6Q/1R2R1rN/2qB1N2/3R2nK/2BN2R1/3bRp2/1prQ1b2/1RnnQ1Qk b - - 0 1 illegal: No possible last move, all moves rejected
1Q1BN1Nk/3Br2b/R6B/b1NQBb1b/2B1q1pp/4N3/RK3Br1/1Q3n1n b - - 0 1 illegal: No proof kernel
N2NBB2/nrb1B3/3q4/4p3/2NbN1RB/1Rr4k/Q1pQKnb1/2BBb2Q b - - 0 1 illegal: No proof kernel
1Q1R1nnB/K6N/1Br1p2Q/4R3/Rr1pbbQR/Rr2Qr2/N2q3R/1B1k4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 f4+ Ke4 h4 d5 c4 g5 b6 a5+ Kb5 g4 b4 e6 h6 a4 h5 g3 f6 g2 f7 a3 f5 a2 c6 Ra3 c7 Qh4 h7 Ra6 c5 Bh6 f8Q Qf2 c6 Qb2 b7 Qa3 f6 Ra5+ Kb6 Ra7 f7 Qb3 b5 Bd2 h6 Ke3 Bd3 Nf6 Nh3 g1R Rh2 Rgg8 Nc3 Qb1 Ng5 Ra8 Qa3 Ng4 f8Q Nf2 Qg4 Na6 b8Q Bd7 c8R Qb4 c7 Bc6 Rd8 Nc5 c8R Nfe4 Bb1 Nf6 Rc7 Ra5 Ra7 Ra4 Qb3 Ra3 Ra4 Ncd7+ Ka7 d4 b6 Bg2 b7 Be4 Qg7 Rf8 Qg6 Rhg8 h8B Rg7 h7 Ng8 Qh6 Rf3 Bb2 Nf8 Rd5 Be1 Re5 Bg3 Rh4 Kd2 Bc1+ Ke1 Bf4 Bh2 Bd2+ Kf1 Rh3 Rc7 Qg6 Rc6 Qd8 Rf6 b8R Bg3 Bg7 Be1 h8R Rf4 R8h4 Kf2 Bh8 Rf3 Qh6 Kf1 Ra8 Bg3 Nh7 Bf4 Qd6 Kf2 Rd8 Kf1 Qb8 Kf2 Nd5 Ke2 Qe3+ Kd1 Rh2 Qb2 Ba5 Qd2 Nb4 Rac3 Nd3 R3c4 Nc1 Rb4 Bb6 Qe2 Bd3 Qd2 Rb1 a1R Rb3 Rb1 Na2 Rb2 Rba3 R2b3 Bb1
1q3r1R/R2nK1Rp/2BnQ3/N1B2Qn1/1B2R1Np/Brb4Q/2k4R/1b3R1n b - - 0 1 illegal: Other
3NQ3/2B2qk1/b2B1B1b/4Rp2/3K1B1r/3Q1Nr1/b1Bpp1n1/2NNBnRQ b - - 0 1 illegal: No proof kernel
3N4/b1q2BBQ/R1n5/2p2pRp/6b1/nNn4N/QB1Qr1Q1/Bkr1B1BK b - - 0 1 illegal: No possible last move
5r1r/NBNQ2nb/2Q1q2p/2pQ1NB1/3R4/RB1NQn2/Kp3N1k/2bn1N2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 b5 Kc2 c5 Kb3 e5 f4 b4 a4 e4 g4 h6 f6 Kg6 a6 e3 f7 e2 d6 e1N d5 Nd3 a7 Nd7 a5 Nb8 f5+ Kh7 a6 Ne7 f6 Kg6 d7 Nf5 d6 Ne5 Bg2 Ne3 Nd2 Nec6 Ra3 Nd4+ Ka2 Ndc6 Nf1 Nd5 Nh3 Nb6 Qd5 Na4 Nf2 Qb6 d8Q Bd7 Rh4 Bc8 d7 Bd6 f8Q Qc7 f7 Nb6 Qfe8 Qb7 f8N+ Kg7 g6 Bf4 g5 Rh7 Qe3 Rh8 Qc7 Nc4 d8N+ Ne7 Nd7 Qb6 Nc6 Rf8 Nde5 Bf5 Ned3 Nb2 Qcd7 Nd1 Bh1 Be6 Bd2 Bg8 Bg2 Bh7 Bf3 Bc7 Rd4 Bf4 Bg2 Qc7 Bf3 Qe5 Be4 Qe6 Bg2 Kg8 g7 Kf7 g6+ Kf6 g8B Nf5 g7 Kg5 Bf7 Kh4 g8N Ng7 Nge7 Rh8 Nf5+ Kg5 Nce7 Nc6 Nc8 Ne5 Be4 Rb8 a8N Nf3 Na7 Rbf8 Nc7 b3+ Ka1 b2+ Ka2 Qe5 Q5c6 Qe8 Bb3 Qe5 Nc8 Qf6 a7 Qe6 a8Q Kh5 Na7 Kg5 Nh1 Kg4 Qcd5 Kh3 Nhf2+ Kg2 Qac6 Kg1 Qe1 Bg5 Bf4 Kg2 Qe3 Kg1 Bg3 Kg2 Bh4 Bf4 Bg5 Kg1 Qe2 Bc1 Qe3 Rb8 Qb7 Qg8 Qe5 Qe6 Qbb5 Rbd8 Bb7 Rdf8 Qbc6 Kg2 Qed5 Kg1 N1g3 Kh2 Nf1+
1rq1QNBb/k5N1/2pp4/p2b2NK/R3nNR1/RQB2b2/N6N/n1Q2R1r b - - 0 1 illegal: No proof kernel
Nr4NR/Qk2rBR1/1pn2R2/BR1b3q/Q5n1/1Q1K2B1/3b2pp/QRRb4 b - - 0 1 illegal: No possible last move
2B3B1/3NK1Q1/2pB1Br1/R2pQBQk/p2q3r/4QN1R/1n1BN3/1n1b1qb1 b - - 0 1 illegal: No proof kernel
1BnN1b2/p4k2/QN1BBNb1/4qQB1/K1Q1n1rB/3p1Bpp/3R4/3rNR2 b - - 0 1 illegal: No possible last move
2B1n3/3Nb1nr/1q3B2/4N2R/2bNRrQ1/1r1R1N2/1RRR1p1N/Nq3k1K b - - 0 1 illegal: No possible last move
B1N1K1Qq/7B/1Nn1B1r1/2Bq1Nr1/nRNbb1Nq/5B2/3N1B2/2kbR1r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kf3 a5 Kf4 h5 d4 c5 e4 f5 b4 a4 g4 a3 d6+ Ke6 d7 h4 b6 a2 b5 h3 b7 h2 g6 c4 g7 c3 d5+ Ke7 Kg5 f4 Kg6 f3 e6 Kd6 Kf7 Ke5 e7 c2 e8N f2 g5 Rh5 b6 Be7 g6 Bf6 d6 Ra6 Ba3 Kf4 e5 Ke3 e6 c1Q e7 Re5 Bg2 f1Q Qd5 Qcc7 Ne2 Qc4 Nd4 Qcd3 Bc5 Nc6 b8N Qf4 b7 Qa5 d8N Rf5 d7 Bh4+ Nf6 Bg5 e8B Nb4 Nd8c6 Qaa3 d8B Qd2 Na5 Nd3 Nc4+ Kf2 Nd7 Rd6 b8N Qg4 Nbc6 Be3 Na7 Qac3 Ndb6 Ne7 g8B Nb2 g7 Na4 Bh7 Qg5 Rc1 h1B g8B Qdd3 Bc7 Qh4 Bc6 Rg5 Ba8 Bg4 Nbd2 Nc6 Rab1 a1R Nf5 Ke2 Rb4 Re6 Qd8 Qd5 Bg3 Qce5 Be1 Bd4 Nac8 Bf3 Ng4 Qh8 Kf8 Reg6 Bf2 Kd3 Rg1 Kc2 Qe8 Rb1 Qf7 Rf1 Ke8 Bd1 Qf8 Kc1 Be6 Re1 Qg8 Rf1 Bf3 Re1 Be2 Be4 Bf3 Re2 Be1 Rg2 Bf2 Rg3 Rf1 Rg1 Re1
2KNQb2/B1Q2r2/RN1R2b1/N3Qr1n/3NkrB1/3R2nQ/2Rqb3/1q1Q4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 Ke5 h5 b4 c4 d4 e6 f4 h4 g4 h3 b6 h2 b5 a4 g6+ Kg7 b7 c3 d6 a3 d5 a2 d7 c2 d6 Qe7 d8R Kh6 b6 Kg7 g5 Rh7 d7 Rh4 f6+ Kh8 f5 Rb4 g7+ Kh7 f7 Rf4 g6+ Kh6 f6 Kg5 Nf3+ Kg4 Bh3+ Kg3 Nbd2 Kf2 Nb3 Nh6 g8R Ra7 g7 Ra3 Nfd4 Ra6 Na5 Ra7 Bg4 Qb4 Be3+ Kg2 Rh8 c1Q g8Q Qb3 Qh7 Nf5 Qh5 Qd2 Rh6 Qbc2 Rc1 Qcc3 Rc2 a1R Rf1 h1B Rf3 Rc1 Bg1 Qb3 Rd3 Qb1 Be3 Ng3 Bg1 Na6 b8Q Nc5 Qc7 Ba6 b7 Nce4 b8Q Bb5 Qh4 Nh5 Qbb7 Bc4 Qb5 Neg3 Ra8 Rb7 Ra6 Ra7 d8N Rb7 Re3 Be2 Rd3 Ra7 Qcb6 Re7 Kd6 e5 Qc7 e4 Rg6 Re5+ Kd7 e3 Kc8 Ref5 Rh6 Bf3 Rg6 e2 Bf2 e1Q Be3 Bd6 f8N Be2 f7 Ba3 Nd7 Bf8 Rcc6 Rcc5 Rgd6 Rce5 Nb6 Re7 Bg1 Rd7 Rc2 Re7 Bh2 Kf2 Qh3 Be4 Rdc3 B4d3 Ra3 Ke3 Bg1+ Ke4 Rb3 Bg7 f8Q Bh6 Qfe8 Bf8 N4e6 Ref7 Bf2 Qc3 Bc5 Qe5 Nd4 Bc4 Rd3 Qd2 Na4 Bd5 Ba7 Ba8 Nb6 Bc6 Qe6 Be8 Qg6 Rh7 Qe6 Bg6 Qee8 Rhf7 Qbxe5+
3Q1RBb/kB4Rp/n2n1q2/n1Q1Q1Q1/rR2B2r/B4NN1/r2Q4/2R1bK2 b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 b4 Kd7 d4 Kc8 f6 Kb7 f7 a5 b5 c5 d6 e5 d5 c4 d7 e4 d6 a4 g7 a3 g6 e3 g5 a2 Bd3 e2 Be4+ Nc6 Rh4 c3 Nf3 c2 Nc3 Ra7 Ba3 c1N Qd2 Ka8 b7+ Kb8 Kf2 e1B+ Kf1 Nce7 Ne2 Qb6 d8Q+ Nc8 d7 Ne7 g8B Qc7 g7 Qc6 g6 Qf6 Ng3 Nd3 Rc1 a1R Qb6 Qb2 d8Q Nf4 Rg4 Ne6 Qc5 Nc6 Rg5 Bd6 f8R Nc7 Bgd5 Na5 g8B Ra2 g7 Be5 Rg4 Ra6 Q8g5 Rb6 Bc6 Ka7 b8R Qc3 Bb7 Na6 Bgd5 Bd4 Ba8 Bg1 Qh5 Nb7 g8Q Qa1 Rf6 Bd4 Qe6 Nb4 Bc2 Re8 Rf8 Bh8 Rg7 Qd4 Qhg5 Re7 Qee2 Qc3 Bg8 Qf6 Bg6 Rd7 Qee5 Rd4 Bd3 Rh4 Bb1 Qf7 Be4 Na5 Bac6 Na6 Rb7+ Ka8 Bcd5 Rd6 b6 Qe7 Rd7+ Kb8 b7 Qf6 Bc6 Nc7 Rdd8 Rd4 Rdd7 Ra4 Rd4 Rh3 Rb4 Rh4 Qcc2 Ka7 b8Q+ Ka6 Ba8 Nd6 Qd8 Ka7 Bab7 Na6 Qcc5+
B2b1B1r/2B1Q1K1/2NbqNQR/R2p4/5rQ1/1kr2nq1/R2RB3/1Qn2Q2 b - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 h4 g5 fxg5 Bb7 h5 Bd5 g3 Bf7 g4 Bg6 hxg6 Qb6 Nh3 Qc7 Ng1 Qd8 Kf2 h5 Kg3 d5 Kf4 Kd7 Ke5 a5 c4 e6 b4 h4 f6 h3 f7 a4 b6 Kc6 b7 a3 g7 a2 b5+ Kc7 b6+ Kc6 g6 h2 g5 Nh6 g8Q Qd7 Kf6 e5 g7 e4 g6 e3 Nc3 e2 Ne4 e1B Ba3 Qc7 Nf3 Bd6 f8Q Ra7 Nd4+ Kd7 Qc1 Nc6 b8Q Na5 b7 Beg3 Bd3 Qb6 Qf1 Qc6 Qh7 Qa6 g8Q+ Nf7 g7 Nb3 Qbe8+ Kc7 b8B+ Kb7 c6+ Kb6 c5+ Ka5 c7 Rb7 c8R Ng5 c6 Ka4 c7+ Qb5 Rd8 Be1 c8B Ra7 Bb7 Bd2 Nc6 Bc5 Qd6 Be1 Bc7 Bh4 Ra8 Nc1 Qge6 Ra6 g8R Qb3 Ra7 Bb4 Ba8 Ra5 Ba6 Rc5 Rf8 Qd3 Qg4 Kb3 Kg7 Rc3 Rf2 Qg3 Qhf5 Rf8 Qeg6 Nf3 Bb5 Bd8 Ra5 Ne2 Rd1 a1Q Rd3 Qe1 Rg2 Re8 Nf6 Re4 Rf2 Nc1 Ra2 Rf4 Rdd2 Qe8 Be2 Qe6 Qf8 Bd6 Qfe8 Be5 Bf8 Bd6 Qe7 Qg1 Qe4 Qg3 Rg1 h1R Rg2 Rh8 Rh2 Rc2 Rh6 Rc3 Qb1#
2Nn3N/4n2B/1N2kQRR/BQB2r2/4K2N/qN5b/pb1Q3Q/1n1Bn1r1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 g4 a5 f4 e5 b4 h5 d4 a4 g6 a3 d6 c4 g5 c3 g7 c2 g6 e4 f6 a2 f7 h4 f5 h3 d5 h2 f6 Qa5 b6 Qa7 b5 Qa4 b7 Na6 b8Q Qa3+ Qd3 Nb4 b6 Qa6 b7 Nc6 Qc3 Rh3+ Nf3 Qc4 Bd2 c1N Be2 Ne5 Bd1 Rh8 Nh4 Be7 f8B Qf1 f7 Nf6 g8N Qb5 g7 Bd8 Ne7 Nb3 g8B Qb4 Bh7 Qb5 Rg1 h1Q Rg6 Nc6 Be1 Ra5 Nd2 Nc5 Nb3 Bb6 Kf4 e3 Kf5 Kd8+ d7 e2 Qh2 Nfe4 b8Q Qa6 Bd2 Ba7 Qb5 e1N Kf4 Kc7 d8N Kd7 d6 Rg8 Ke3 Qf1 Rh6 Bb7 Nc8 Qf6 Be7 Rg1 f8N+ Ke8 Nd7 Ne6+ Ndb6 Ba8 Qcc4 Nc3 Nf7 Nb1 Nh8 Nd8 Ke4 Bb8 Qc3 Bb7 Nc4 Kd7 N4b6+ Ke6 d7 Be5 Bc5 Qa8 Qc1 Bb2 Qc3 Nf7 d8Q Ne7+ Ke3 Bg2 Qdd4 Bh3 Qdf4 Qb8 Ke4 Qa7 Qff2 Nd3 Be1 Nd8 Qfd2 Qa8+ Ke3 Ra4 Qcc2 Bf1 Qdb4 Rg7 Bf3 Bh3 Bc3 Qa7 Qcd2 Na3 Rg1 Ne1 Bd1 Nb1 Q4a5 Rgg4 Qab4 Rf4 Rgg6 Rf5 Q4a5 Rg4 B3b4 Rg3+ Ke4 Rg1 Bc3 Rg3 Qab4 Qa5 Qbd4 Qa4 Ba5 Qa3 Q4c3 Rg1 Qxf6+
3QRnQn/1n4Q1/7b/R1NB1Q1Q/bK1k1BrR/3qp1N1/1n5B/R1B2b2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 f4 h4 f3 hxg5 Na6 g6 Rb8 g7 Rb6 g5 Rf6 g6 Rf5 Rh5 Rg5 Rh1 Rg3 fxg3 Nb8 g4 f2+ Ke2 Qd7 g5 Qd6 Bg2 f1N Ke1 Ne3 Bf1 Nf5 exf5 Qd8 b4 Kd7 d4 Kd6 Kd2 c5 Kc3 e5 f6 h5 b6 e4 b5 a4 b7 c4 b6 h4 f7 e3 Ne2 h3 Kb4 a3 Nd2 h2 Nb3 a2 Ng3 c3 Bg2 c2 Nc5 Rh7 Qh5 Be7 f8Q Rh6 Qf5 Nd7 b8R Bb7 Ra8 Ba6 b7 Bf1 Ra5 Bf8 Bf3 Ne7 g8R Rh8 g7 Ng6 Be4 Rh6 Bf3 Nh8 g6 Qe7 Bg2 Qe4 Bf3 Qd3 b8B+ Ke7 Bf4 Rh7 Qfg4 Kf6 d6 Rh6 d5 Rh7 Bg5+ Ke5 Bf4+ Kd4 Qhf5 Rh4 Qgh5 Rg4 Bg2 Be7 Re8 Bg5 g8Q Nf8 d7 Bh6 d8B Ne6 d6 Nf8 Rb1 a1N g7 Nb3 d7 Nd2 Bh4 Nc4 d8Q+ Nd6 Bd5 Nb7 Bd2 c1N Rba1 Nb3 Bc1 Nd2 Qgh7 Nc4 g8Q Nb2 Be7 Bg7 Bed6 Bh6 Rg1 h1B Bb8 Be4 Rh1 Bf3 Rh4 Bd1 Bbd6 Ba4 Bc7 Nfg6 Qhg7+ Ne5 Nge4 Rg2 Bh2 Rg4 Qgg5 Nd7 Ng3 Nf8 Bf4 Nd7 Qge7 Nf8 Qeg7+
Q1r3k1/2Q5/N3nR2/1RRRr3/1B4Bn/1BnKpQB1/Q2B2r1/2q1b1rN b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 e5 d4 c5 b4 a5 f6 h5 g7 Kf7 g6+ Ke8 f7+ Ke7 b5 e4 b7 a4 g5 c4 b6 a3 d6+ Ke6 d7 a2 d5+ Ke7 d6+ Ke6 Nc3 h4 Bh3+ Ke5 Bd2 e3 Nd5 c3 Bg4 c2 Rc1 a1R Nb4 h3 Na6 h2 Nh3 Rb1 Nf2 Rh7 Kd3 Ra7 Qf3 Nc6 b8R Rb5 b7 Nd4 Rhf1 Rh3 Nh1 Qc7 d8Q Rh8 d7 Bb4 f8B Ne7 g8Q Nef5 g7 Ne6 g6 Nh4 Qh7 Ra5 g8Q Ra8 Qgf7 Rg8 g7 Bc3 Bb4 Rb5 Ng3 h1R Qde8 Rg1 d8R Qc5 Nh1 Ra5 Qec6 Rb5 Rd7 Rc8 g8B Ra7 Nc7 Ra2 Na6 Rba5 Qa4 Rb2 Qa2 Qc7 Qe8 Qc6 Bf5 Kf6 Rd5 Qc5 Qhd7 Qc6 Bf7 Kg7 Bg4 Kh7 Qc7 Rb5 Rd8 Re5 Rd5 Qc5 Qg3 Kg7 Rf6 Kh7 Qf3 Qc6 Rd1 Kg7 Rc5 c1N+ Kc4 Ne2 Kd3 Nf8 Bb3+ Kh8 Rd5 Kg8 Rc1 Qc5 Qea4 Ne6 Rc2 Bd4 Rc4 Bc3 Qaa5 Qc6 Rcc5 Rc2 Qab6 Rb2 Qa7 Rc2 Qa8 Rb2 Bc1 Be1 Bcd2 Nc3 Rb5 Rd8 Rc8 Rf8 b8B Rd8 Bc1 Rbg2 Bd2 Re8 Rdc5 Rf8 Rd8 Re8 Rd6 Rc8 Rdd5 Ne2 Qca5 Re4 Bg3 Re5 Rc4 Qc5 Qc7 Qc6 Rcf4 Qc1 Rc4 Nc3 Rcc5
2K1k1q1/R3BrN1/2Nb2B1/4Q3/2R4R/RNBb2q1/r1pq3B/r1bN2BQ b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Kd7 f7 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 g5 Nc6 h3 Nf6 h4 Ne5 Ke2 Nf3 gxf6 g5 Kf2 g4 Ke2 Ng5 hxg5 g3 Ke1 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 e5 Ke3 c5 Ke4 a5 b4 h5 d4 g2 d6 h4 Kd5 e4 b6 e3 b7 e2 b8B e1B b5 c4 b6 a4 g6 h3 g7 h2 g8R c3 b7 a3 Bb2 c2 Nc3 a2 Bd3 Rh3 Rg7 Qe7 Nf3 g1Q Nd2 Kd8 Kc6 Qg3 d7 Qf3+ d5 Ra5 Be5 Qe8 b8Q Qg2 Nb3 Bc5 f8R Rg3 f7 Ba3 f6 Qh3 Bg6 Qh5 Bf4 Bf2 Qe5 Rg4 Rh8 Qh3 f8B Rh4 f7 Be3 Bc5 Bd4 f8N Ra8 Qf1 Rh7 Nd1 Ra7 Bc3 Bc1 Rg1 h1Q Rg4 Q3g2 Bh2 Bg1 Rc4 Qf3 Qfe1 Rh3 Rhh4 Ra3 B5d4 Qef7 Ne6+ Ke7 Kc7 Qhg2 d8N Qd2 d6+ Ke8+ Kb8 Qfg2 Q1e4 Rf3 Nc6 Qg3 Q4d5 Rf4 Qh1 Bf2 Ba7 Bc5 Rgh7 Bb4 Bag1 Bc5 Be4 Qfg6 Ra7 Qg8 Bg6+ Rf7 Ng7+ Kf8 d7 Ba6 Rcg4 Bd3 d8B Bd6+ Kc8 Ra4 Rc4 Ra6 Rb1 Ra5 Rb2 a1R Ra2 Ra6 Raa4 Ra5 Rab4 R5a2 Rba4 Qgf4 Ra3 Qg3 Ne6+ Ke8 Bf6 Qgf2 Be7 Qg3 Ng7+
nRKNBq1n/5NR1/4R3/4r1Np/kN1QpQQ1/3Nr3/bBnR4/1b1Q4 b - - 0 1 legal: proof: c4 g5 d4 b5 h4 d5 hxg5 Kd7 cxd5 b4 e4 b3 d6 Kc6 d7 Kd6 axb3 Ke6 b4 Kd6 b5 Ba6 Na3 Bb7 Nb1 Bc8 f4 e5 d5 Ke7 Rh6 Bg7 Rh1 Kf8 d6 Qe7 Be3 Qe6 Bc1 Qd5 exd5 e4 Rh3 Bd4 Rh1 Be5 fxe5 Ba6 Nf3 Bb7 Ng1 Bc8 Kd2 f5 Kc3 h5 Kd4 a5 Kc5 c6 Kb6 a4 Kc7 a3 d8Q+ Kf7 b4 f4 g4 a2 e6+ Kg7 g6 f3 e7 Kf6 e8Q+ Ne7 g7 Ke5 g8R f2 d7 c5 d6 c4 b6 c3 g5 c2 g6 Ra3 b5 Rh3 b7 Rh6 b6 Ra3 g7 Ra6 Nc3 Ra7 Nf3+ Ke6 Bb5 f1B Rh2 Bd3 Bb2 c1Q Rd2 Ra6 Ng5+ Ke5 Qf7 Kd4 Qf4 Kc5 Ne2 Qb1 Nc1 Kb4 Bc6 Bc2 Nd3+ Ka5 Re8 Re6 g8Q Ng6 Qg7 Re5 Re6 Ra7 Qdh8 Ra6 d8N Nd7 b8N Bb7 Qhg8 Nh8 Ndf7 Ra7 Bb5 Bd5+ b7 Nb6 d7 Na8+ Kc8 Qc1 d8N Bb1+ Bc6 Qc5 Na6 Qf8 b8R Rb7 Be8 Rb3 Nab4 Bc4 Ne1 Re3 Ned3 Bb3 Rc6 Ka4 Qgf6 Re6 Qd4 Re5 Qg7 B1c2 Rb1 a1N Rc1 Ba2 Re6+ Ka5 Qg6 Bcb1 Rc7 Nc2 Qgf5 Qc5 Q5g4 Qf8 Rcc6 Ka4 Rg6 Rc5 Rg7 Re5 Re6+
Q1KRnB1b/RNR2QB1/R3Q1p1/n3Qb1q/2N1p2k/6Q1/2nr4/B1nB4 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 d5 exf5 b5 a4 d4 axb5 d3 cxd3 a4 d4 Nf6 d5 Ra5 bxa5 Ng8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 e5+ d6 c6 d4+ Kh4 f4 e4 f6 g6 h6 a3 h7 a2 b6 Bh6 d7 Qe8 Kd6 c5 Kc7 c4 d8Q c3 f5 c2 b7 Qe6 f7+ Nf6 f8B Qg8 a6 Bd7 a7 Qd5 a8R Qe6 d5 Qe8 d6 Rg8 h8B Ba4 d7 Rg7 Nd2 Qe6 Ra6 Qe8 Bb2 c1N Nh3 Bb5 Nf2 Qe6 Nd3 Nc6 b8Q Nb3 Be2 Na7 Nc4 Rf7 Bhg7 Bc6 Nc5 Bb5 Qd5 Bg5 Rhc1 Nc6 Nb7 Nca5 Kc8 Kh3 Bd1 Qe8 Qe6 Nh5 f6+ Kh4 h3 Re7 f7 Bf6 Qa8 Kg3 h4 Be5 Ra7 Nf6 h5 Kh4 h6 Bc3 Rc2 Nc1 h7 Bd4 Rb1 a1N h8Q+ Nh5 Rc3 Nc2 Ba1 Bc6 Rb6 Ba4 Bh6 Nf6 Rba6 Bc6 Bfg7 Qg8 f8Q Qh7 Qc7 Ne8 d8R Rd7 Qf1 Be5 Qff5 Rd2 Qff7 Bd4 Bf8 Be5 Bhg7 Qh5 Qh6 Bd4 Qe3 Bf6 Qce5 Ba4 Bh6 Bh8 Bhg7 Bb5 Nb2 Bf1 Rc7 Bh3 Nc4 Bf5 Q3g3#
R3r3/1NN4B/1p1Rq3/2N1rp1n/Kn2k2N/B3q1q1/3R1Q2/QNnR1BB1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 d4 g5 d3 cxd3 Nc6 d4 Nb8 d5 Kd7 Bg2 Ke7 Bf1 Ke8 h3 Bd7 Bg2 Be7 Nf3 Bf6 gxf6 g5 Nh4 g4 Nf3 g3 Bf1 Be6 Ng1 Bf7 Qb3 Bh5 Qd1 Bg4 hxg4 Qd7 Nc3 Qc8 Nb1 Qd8 a4 Kd7 e4 c5 d4 h5 Kd2 h4 Kc3 b6 Kb3 g2 f7 h3 f8B h2 e6+ Kc7 d6+ Kc6 g5 Na6 d5+ Kb7 e5 Nb8 g6 Rh5 a6+ Kc8 a7 Kb7 e7 Qc7 e8N Qd7 g7 Ne7 g8B Ng6 e6 Rh4 e7 Na6 a5 Rh3+ Qf3 Rb8 a8R Nh8 Nf6 Qe6 e8N c4+ Ka4 c3 d7 c2 d8R Ng6 d6+ Qd5 d7 Kc6 Bfa3 Rc8 Ra2 Rh4+ Ne4 Nf8 Bh7 Ne6 Qf2 Nb4 a6 Ng7 a7 Qe6 Nc7 Nh5 Nc5 Re4 Be3 c1N Rd2 Re5 Nf3 g1Q Nh4 Qg3 Qe1 Nf6 Rb8 Qg5 Bc4 Re4 N5a6 Ng8 Bb2 Qd6 Ka3 Qd5 a8Q+ Kd6 Qa7 Re6 Ra8 Nf6 Qe2 Nh5 Rhd1 Re7 Bg1 Re5 Qf2 Qh6 Bd3 Qde6 Bf1+ Kc6 Nc5 Qe3+ Nd3 Kd6 Qa5 Nd5 Qc3 Nb4 Ka4 Rb8 Ba3 Rc8 Na6 Kd5 Qa1 Ke4 Nc7 Rb8 Re8 Rc8 d8N Rb8 Nb7 Qg3 Rd8 Qe3 Rd7 Re8 Rd6 Qg3 Be2 h1Q Bh2 Qf1 Bg1 Qe1 Bf1 Qee3 Ndc5+
2k1Q2B/rNNq3p/3p2BQ/N3RqnK/3R4/3NN3/2bnp3/RB1Rq2B b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 gxf5 g4 f4 Bb7 h4 Be4 f6 Bg7 f5 Bb7 e4 Bh6 e5 Bg5 hxg5 Ra6 Ke2 Bc8 Kd2 Qc7 Ke1 Kd8 f7 Rf6 exf6 Qb6 Bc4 Kc7 Bd3 Kb7 Be2 Qd8 Bf1 Kc7 Kf2 e5 Kg3 a4 Kh4 a3 f8Q a2 c4 e4 b4 g3 g6 e3 b6+ Kb7 c6+ Ka8 g7 e2 b5 g2 c7 Kb7 c5 Na6 c6+ Ka8 b7+ Ka7 b8N Nb4 b6+ Ka8 b7+ Ka7 Na6 Nd3 b8N Ne1 Nh3 g1Q Qa4 Qg6 Nc3 Qg1 Nd1 Qd4+ Nf4 Qb4 Rb1 a1Q Ne3 Qab2 Kh5 Q4c3 f7 Qd4 f6 Qdc3 Ra1 Qd4 Bg2 Qc2 Bb2 Ne7 g8B Qdc4 Qh6 Kb6 f8R Q4b3 f7 Qd2 Re8 Ka7 f8R Nc2 Rhd1 Qbd3 Bh1 Nd4 Ba2 Rg8 Bb1 Ne6 Bh8 Nd5 Rf7 Ng5 Re5 Bb7 c8B Nb6 c7 Qe1 Nc6+ Ka8 Rf6 Nc4 Na5 Be4 Rd6 Nd2 Rd4 Rg7 Bb7+ Ka7 Bd5 Re7 Bf7 Ka8 c8N d6 Nc5 Kb8 Qe8 Rc7 Nb6 Ra7 Na8 Kc8 Bg6 Bf5 Ncb7 Qb5 Re7 Bc2 Nc7 Qd5 Nd3 Qf5 Qg8 Qe8 Re5 Qd8 Qf7 Qdd7 Qe8+
Nn2NQnn/r1Qqr2R/p2R3p/B1Q2B2/3NR2Q/k3NR2/4Knp1/1R6 b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 b4 Kd7 d4 Kd6 b6 e5 b5 c5 f7 c4 f8R e4 f6 e3 f5 c3 g5 g2 b7 e2 f7 a6 g6 c2 f6 Nc6 b8N Qc8 b6 Qb7 g7 Nb4 Nc3 Nc6 Nd7 Qa7 b7 Ne5 b8R Nc6 Rab1 Qb6 Rbe8 Qd8 Re4 Qa5 Nb6 Qa2 Bd2 c1N Qc2 Nb4 Nf3 Rd8 Na8 Qb3 Nd1 Qa2 Ne3 Nc6 Ba5 Nge7 g8N Kd7 d6 Rc8 d5 Rc7 Nd4 Qa4 Kf2 e1N Bd3 Nf3 Qc4 Nb3 Ke2 Ng5 Qc5 Ra7 Rb8 Qb5 f8R Qb7 f7 Nd2 Rbc8 Nb8 Rc6 Qc7 Rh3 Qd8 Rf3 h6 Rcb6 Qe8 Nf6+ Kd8 d7 Rh7 Rh8 Ng8 f8Q Re7 Rh7 Nf7 Bc2 Nh8 Rd6+ Rc7 Rh4 Ne4 Bd3 Nf2 Bf5 Nd3 Re4 Nf2 Qg7 Qf7 Ne8 Qe6 Rbb6 Ra7 Qg3 Rg7 Rb1+ Ke7 d8Q+ Kf7 Qcc8 Qd7 Qdc7 Kf8 Qh2 Re7 Qh4 Re5 Rf6+ Qf7 Qc1 Ke7 Q8c3 Re6 Q3a3+ Kd7 Qf8 Qe7 d6 Qg7 Ndc2 Kc6 d7 Qe7 d8Q Kc5 Qd7 Qd6 Rg6 Re7 Qb7 Qc6 Rd6 Qd7 Qc7+ Nc6 Bb4+ Kb5 Nd4+ Ka4 Qc4 Nb8 Ba5+ Ka3 Q4c5+
B1B2R1r/1NN1k3/N3n3/1N4QB/QRKbqBbb/qRB5/5n1r/1R2n2q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 a5 Kd3 h5 b4 c5 f4 e5 g4 h4 d6 a4 f6 h3 f5 h2 f7+ Kd7 b6 a3 b5 a2 f6 Nc6 g6 Rb8 g5 Qe8 b7 Rh5 g7 Rh7 g6 Ke6 b6 Rh3+ Nf3 Rh6 d7 Nd8 Nc3 Ne7 g8B Rh8 g7 Ra8 b8N Ra7 b7 Ra5 Bh3+ Nf5 Nd5 Kd6 Nc7 Ng3 Nd4 Rh7 Nba6 Qe7 b8R Nh5 Qa4 Rh6 Rab1 a1Q R1b3 Qa3 Rb4 e4+ Kc3 e3 d3 Nb7 d8N c4 Rf1 Rf5 Ndb5+ Kd7 d4 h1Q d5 e2 d6 Rh8 Kd4 c3 Kc4 Nc5 Nb7 Qe3 Bh7 c2 Bg6 Ng3 Bh5 Be7 f8B Nge4 f7 Bh4 Be7 Qef3 f8R Qf4 Bd2 c1B Bf6 Bb2 Rb1 e1N Bg5 Bf6 Bc3 Qg4 Bgd2 Rf2 Bc1 Rh2 Bg5 Kc6 d7 Qgf3 d8Q Nf2 B3g4 Bd4 Bf4 Qe4 Qg5 Bd7 g8B Bf5 Bd5+ Kd7 N7d6 Be6 Bh3 Bf5 Ba8 Be6+ Qd5 Ke7 Nb7 Bd7 Bf5 Bc8 Bfg6 Bh3 Bf5 Bg4 Bc8 Ne6 Qg5+
2RnN1Q1/3RnrqQ/1K1B2q1/5r2/5N1N/kbrRRN1n/5b1B/3qBB1N b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Bg2 Kd6 Ke3 Kc5 h4 Kb4 Kd4 a5 f4 g5 d6 e6 h6 a4 h7 g4 h5 a3 h6 c6 d7 a2 f6 g3 f5 Bb7 f7 Ne7 b6 Ra5 f6 Rh5 Nh3 Rh4+ Qg4 Nd5 Nf2 Nc3 Rd1 Bc8 b7 Na4 Nh1 Qe8 d8R Bg7 f8B+ Qe7 Bf1 Na6 b8B g2 Bh2 Bd7 Rc8 Rg8 h8Q g1N h7 Bh6 f7 Rg5 d3 Ra5 Nd2 Nc7 Nf3 Nc3 Bd2 Be8 b3 Ka3 b4 Qg5 b5+ c5+ Kc4 e5 d4 e4 d5 e3 d6 e2 b6 e1Q b7 Qg3 d7 Ne6 Qe4 Qg7 Qg8 Be3 h8N Rg4 d8R Ba4 b8N Bf2 Na6 Rf4 Rd7 Nd5 Bd6 Ne7 f8N Rf7 Qeh7 Nd8 Nfg6 Nh3 Ngh4 Rb5 Rab1 a1Q N8g6 Qg2 Nf4 Q2g6 Rb2 Qab1 Re1 Qd1 Nc7 Ra5 Re5 Rb5 Ne8 Bb3+ Kc3 Ra5 Be1 Rb5 Rd2 Ra5 Bc7 c4 R2d4 Rb5 Re3 Rbf5 Be5 Q7h6 Rd2 Qhg7 Kd4 c3 Kc5 c2 R2d3 c1R+ Kb5 Rc3 Ka5 Qh5 Kb6 Qhg6+ Bd6+
Rb2k1Bq/1n2N1R1/2B3N1/1N2B1q1/1r2qrB1/Q7/nQ1BRnq1/K2R1bN1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 h5 Kd2 a5 Kc3 c5 f4 e5 b4 h4 Kb2 c4 g4 a4 f6 e4 f5 e3 b6 h3 b7 e2 g6 e1N g7 h2 f7+ Kd7 f6 Ng2 b5 Ra7 d6 Ne3 g5 Ng4 d5 Rh3 g6 Ra3 b6 Qe7 Nc3 Qe4 Qd4 Qf5 Ra2 Ne7 g8B Qf4 g7 Nbc6 b8B Qg3 b7 Nf5 Be2 Nge5 Bg4 Qg2+ Ka1 Rb3 Bd2 a3 Nb5 Nd3 Qb2 c3 Bc7 c2 b8R Ra4 Rb7 Be7 f8Q Nf2 f7 Rf4 Ra7 Bb7 Qa8 Bd8 f8N+ Ke8 Ng6 Rbb4 Be6 Qe4 g8B Ba6 Bb8 Bh4 Rg7 Bg3 d7+ Kd8 Nf8 Nd6 Ng6 Nb7 Qa7 Qg2 Be5 Qe4 Nh3 Qg2 Rd1 h1Q Ng1 c1Q+ Qb1 Qh8 Nc3 Qgh2 Be1 Rf5 Bb8 Bf1 Re2 a2 Qa3 Qd2 Qbb2 Qg5 Bd2 Be5 Bd6 Bd4 Be5 Ra4 Bef7 Nd6 Be6 Nb4 Nb5 Qg2 Na7 Kc7 d8R+ Rf7 Ra8 Bc5 Bd4 Nb7 Be5+ Bd6 Nb5+ Kb6 Nf8 Rf4 Ng6 Bb8 d6 Kc5 d7 Kc6 Nd6 Kc7 Bd5 Kd8 Nb5 Nd6 Qd4 Nb7 Kb2 a1Q+ Kb3 Qc1 Qdb2 Na6 Ka2 Qc2 Ka1 Nb4 Na7 Na2 Nb5 Rab4 Nd6 Kc7 d8N+ Qe7 Nc6 Qce4 Bh5 Kd7 Nb5 Ke8 Bg4 Qeh4 Nce7 Qg5 Bc6+
1b3r1Q/1N1qbN2/q3R1B1/nn2rr1B/R2NB1b1/5Bk1/1rR5/1R1KQ1BN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 g4 c5 b6 h5 d6+ Ke6 d7 a4 g6 c4 g5 h4 b7 f4 g7 a3 g6 c3 b5 f3 b6 c2 d5+ Ke7 e6 Kd6 e7 Ke5 e8B h3 d6 h2 Ne2 a2 Bg2 Qf6 d8N Ra4 d7 Rh6 Nd2 Qe7 Nd4 Kf4 e5 Ra5 e6 Nf6 g8R Ra4 g7 Na6 b8R Qf7 e7 Nc7 b7 Nfd5 Ne4+ Kg4 Nf2+ Kg3 Be3 c1B Ra8 Nb4 b8Q Raa6 Nb7 Rhf6 d8N Rae6 Ra4 Nc6 Rb1 a1Q Rh8 Bd7 g8B Rf5 Rh6 Na5 Bh7 Ree5 Re6 Nb5 Qa8 Qg7 Nf7 Bb2 Rf1 h1R Qc1 Rh6 Kd1 Rh2 Qd2 Ba3 Qe1 Bd6 Bg6 Bc8 Bc6 Bb8 e8B Be7 Be4 Qa3 Rb2 Qd6 Rc2 Qa6 Nh3+ f2 Bgf3 Rg2 Bgh5 Kh2 Rg1 f1R Nf2 Kg3 Nh8 Qf8 Beg6 Qd8 Rh1 Rf8 Nf7 Qe8 Rec6 Bg4 Re6 Qd7 Rg1 Bc7 Qd8 Bb8 Rh1 Bed6 Qf6 Bc5 Qh8 Be7 Nd3+ Rgf2 Rc5 Qd5 Kc1 Nd6 Bd1 Ndc4 Qb4 Na3 Rc4 Ra2 Rc2 Rff5 Bdf3 Bg5 Rf1 Rf4 Bg1 Qd7 Nf2 Be7 Kd2 Rf6 Rb1 Rff5 Kd1 Rb2 Qe1 Nb5 Nh1+
2qq1N1R/1QB4r/1Bn1B1B1/2RNb2R/4r1RQ/3K2nb/qr4r1/1N3NkN b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ra4 Kf7 Ke2 h5 g4 c5 d4 a5 b4 e5 f4 h4 f6 Kg6 d6 h3 d7 e4 b6 e3 f7 h2 b7 c4 d5 c3 b5 c2 f5+ Kg7 b6 Bd6 f8R Ne7 g6 Kh6 f6 Kg5 f7 Kh4 g5+ Kg3 g7 Bb4 g8N Rh7 g6 Bc3 g7 Rh8 d6 Rh6 Qd4 Ng6 Nf6 Bd2 g8B Rh3 Nf3 Rh7 Nd5 Qe8 d8R Ne5 d7 Na6 b8Q Nc5 b7 Bc3 Nfd2 Ne4 Qc7 Ra7 b8N Rb7 Na6 Rb2 Qb7 Qe7 Rb4 a4 Nc5 a3 Nd3 a2 Nf2 a1Q Bh3 Qg5 Bf5 Kg2 Nf1 Qa2 Bg6 Qf6 Rb5 Qe7 Rde8 Qd8 Bd2 c1Q Qa4 Nc6 Kd3 e2 Be3 e1R Bb6 Ng3 Re4 Na7 Rc4 Bf6 Rh4 Qcc7 Rc5 Be5 Qg4 Nc6 Qf4 Qg5 d8B Re4 Re8 Qb8 Bdc7 Qd8 Qg5 Bf5 Qf6 Qbc8 Rh5 Ne2 Qh4 Bh3 Rg1+ Kf3 f8N h1R Be6 Rh2 Rg4 Ng3 Nd7 Kg2 Nh1 Kg1 Rh8 Rhg2 Nf8
KQ2n2B/1nr1Q1R1/4NRqN/bN2N2R/RBrr3r/6rb/k1B2B1r/1N6 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 g5 Kc4 c5 h4 e5 b4 a5 d4 g4 f4 a4 d6 g3 Kd5 a3 f6 c4 f5 a2 h6 g2 h7 e4 h5 e3 b6 c3 b7 e2 h6 e1R d7 c2 b5 Qe7 d8R Re2 b6 Re1 Rh5 Nc6 b8N Ra4 b7 Re2 Qe1 Qe8 Nd7 Bb4 b8Q Re4 Ne5+ Kf8 f7 Ke7 f8R Na7 Be3 c1R Ne2 g1R Bf2 Nc6 Rf6 Rgg4 Nec3 Bb7 Bd3 Re3 Bc2 Rge4 Nb5 Bc8 Rdd6 Qg6 Rd7+ Ke8 Rc7 Nd8 Rg7 Nb7 Kc6 Rh4 d5 Rg3 d6 Ba5 d7+ Kd8 Qe3 Rd1 Qa3 Rdd4 Qad6 Rac4+ Qc5 Bb4 Kb6 Bd2 Ka7 Ba5 Ka8 Rh2 Rc6 Rhh4 f6 Rh2 f7 Nf6 Qa3 Ne8 Rf6 Rhh4 Qe3 Ke7 d8N Bh3 Ne6 Rc7 N5a3 Kd6 f8B+ Kd5 Bb4 Rcc4 Nb5 Rc7 Nd3+ Kc4 Qe2 Rg8 h8N Rg2 h7 Rh2 Re7 Rg7 Nf7 Rg8 h8B Rg7 Nh6 Rg8 N1c3 Rg7 Rh1 a1R Nb1 Ra3 Rg1 Rc3 Rg4 Rg8 Bd1 Rc2 Ne5+ Kb3 Rg7 Ka2 Qe1 R2c3 Bc2 Rg3 Re4 Rf8 Ref4 Rff7 Rg4 Rcc4 Re4 Rfc7 Qe3 Rd5 Qc5 Rdd7 Qe7 Rdd4 Re3 Kb2 Ra3 Qg4 Bd3 Qg6 Ra4 Kb3 Bc2+ Kb2 N5a3 Ka2 Nb5+
1b6/B1R1KQBk/1q1R4/B1Q1R1N1/2N3r1/1n1bp3/B1Bq3q/nbQQR1r1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ra2 Kf7 d4 Kg7 f4 h5 Ke2 e5 g4 a5 d6 c5 Kd3 h4 Ke4 h3 Kd5 h2 b4 c4 f6+ Kh7 f5 a4 b6 a3 d7 e4 Ke6 c3 b7 c2 d5 e3 b5 Ra5 d6 Qc7 b6 Be7 f7 Qc6 f8R Rc5 g6+ Kh6 g5+ Kg7 Re8 Bf6 Bb2 c1Q Nh3 Na6 b8B Rd5 b7 Bd4 Nd2 Nb4 Bd3 Q6c3 Re1 h1B Ba7 Be4 b8Q Nh6 Qc7 Ba6 d8R+ Nf7 d7 Rg8 f6+ Kh8 g7+ Kh7 Bb1 Ne5 f7 Qd3 f8Q Qdc2 Qc8 Ned3 g6+ Kh6 Bc3 Rg5 Kd6 Qb3 Rc2 a2 Qf5 Rg1 Bb2 Rh8 g8B Nc5 g7 Be2 Rc4 Nc2 Ng5 Qb6+ Qc6 Bf6 Bd5 Bc3 g8Q Bg7 Qgf7 Be5+ Ke7+ Bd6+ Kf6 Bb8 Qe5 Bf5 Re6 Rg4 Ke7+ Bg6 Be4 Nb3 Rc5 Rh7 Rc8 Rg1 Rc7 Ba6 Rd6 Rg7 Ne6 Bh7 Rcd5 R7g4 Ng5+ Bg6 Qec3 Bf1 Q6c5 Bb5 Q3c4 Ba6 Bd4 Qb2 Bc3 a1Q Ba2 Qac1 Rf5 Nca1 Bg7+ Kh5 Re5 Qcc2 Nb1 Qh2 Na3 Qbd2 Qcc1 Bf1 Bf6 Kh6 Nc4 Bg2 Bf5 Be4 Bh8 Bb1 Bc2 Qbb4 d8B Qb5 Rc8 Qa6 Bf6 Bd3 Ba5 Qb6 Rc7 Qb7 Nh3 Qb6 Bg7+ Kh7 Ng5+
3B2n1/1qQRqb1k/1r1b1n2/R6R/3RB1bN/1p1Q3B/B1r1QN2/Qr3BK1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 Kg7 f4 c5 Kf2 h5 g4 e5 a6 b5 d6 e4 a7 c4 g6 h4 a5 h3 d5 b4 d7 h2 f6+ Kh6 a6 c3 d6 c2 f7 Be7 f8R Kg7 g5 Qa5 d8R Rh5 d7 Qa3 f5 Bf6 Qe2 Qa4 Nc3 Qc6 Ra5 Rh7 Nd1 Be7 f6+ Kh8 f7 Bf6 Nf3 Qc3 Nh4 Rh6 g7+ Kh7 Qd3 Ne7 g8B+ Kg7 g6 Qe5 Bg5 c1R Kg2 e3 Nf2 Nbc6 Qe2 Rb8 a8B Rc4 a7 Nd5 Bb7 Qf4 a8Q Rc2 Qaa6 Qd4 Qad3 Qb2 Rg1 h1B+ Kh2 Rc1 Rg4 Nce7 Rd4 Be5+ Kg1 Nf6 Be4 Bd6 Bh7 Qb1 Bg2 Neg8 Bh3 Ne8 Be7 Bd5 Bg5 Rb6 Be7 Rh5 Bf6+ Kh6 g7 Rc2 Be4 Ba2 Be7 Rhb5 Bf6 Ne7 g8B Be6 Bgh7 Ng8 Bd5 Bg4 Bhe4 Ba6 Be7 Nef6 Ba2 Bc8 Rfe8 Kg7 f8Q+ Kh8 Qf7 Bh5 Qfc4 Bf7 Rf8 Qb2 Qed1 e2 Qa1 e1Q Qe2 Qb3 Qcd3 Qb2 Rde8 Qb3 d8Q Bg4 Qc7 Qd5 Bd8 Qb7 Re5 Kg7 Rf5 Kh7 Qef3 Qe3 Qfe2 Qg5 Re8 Qg7 Re7 Qf8 Ree5 Qe7 Re6 b3 Ree5 Rbc5 Red5 Rc1 Qdd2 R5c2 Qdd3 Bc5 Rd6 Rb1 Rd7 Bd6 Rh5+
4N1k1/1Nr3rQ/2N3p1/1q1q1B2/3N1bbN/qQB1QnQ1/n1K2R1B/B1R1r3 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 h4 a5 b4 e5 d4 c5 Kd2 c4 b6 g6 b7 e4 h6 e3+ Kc2 a4 f6 e2 f5 e1R h5 c3 h7 a3 h6 a2 d6 Ra6 d5 Bg7 b5 Qf8 b6 Ra8 d7 Re2+ Bd2 Rf2 d8N+ Ke8 d6 Re2 f7+ Kd7 f6 Ra4 Na3 Rh2 Rc1 a1Q Nb5 Rah4 Nc7 R2h3 Ne8 Re3 Bh3+ Rg4 Nc6 Ke6 d7 Qc5 d8N+ Kf5 f8N Qd5 f7 Qa3 Nf3 Ne7 Rf1 Nd7 b8Q Ne5 b7 Rg8 h8Q Re1 h7 Bh6 Nfe6 Bf4 Rf2 Rg7 f8B Qa6 Qa7 Qab5 b8Q Bd7 Qe3 Bc8 Ng1 Nf3 Ned4+ Kg5 Qg8 Kh6 h8B Rg5 Nb7 Bg4 Qf7 Kh7 Qd6 Re5 Qa3 Re6 Qb3 Rd6 Qde2 Rd7 Q2d3 Ne5 Ngf3 Rc7 Nh4 Nf3 Nb8 Nc6 Bd6 Nce5 Qd7 Nc6 Qde7 Kg8 Qd7 Bh5 Bf5 Bg4 Qde7 Nfe5 Qg3 Nf3 Qde3 Nb4+ Kb1 Ne5 Nbc6 Na2 Kc2 Nf3 Qg2 Bh6 Bh2 Bf4 Qg3 Qa5 Kd3 c2 Bc3 Qa4 Rb1 c1Q Ba1 Qb2 Rc1 Qba3 Kc2 Qb5 Ne2 Rf7 Bhc3 Rh7 Ned4 Rf7 Qg5 Rfd7 Qh6 Rg7 Qh7+
1r2k1n1/n1rQbRQR/bq1p1R1Q/4Bb2/2Qr2q1/3BB1R1/N4N2/4QBK1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 a5 Kf2 e5 b4 h5 c4 a4 g4 e4 b6 h4 c6 a3 b5 a2 g6 h3 g7 h2 c5 Rh5 c7 Rg5 c6 Ke7 f6+ Kf7 b7 Rd5 f5 Qe8 b6 Rc5 g5 Ra6 Be3 Ra3 Qe1 Rd5 Nh3 Be7 Nc3 Qd8 g6+ Ke8 Rd1 a1Q Na2 Bd6 f7+ Ke7 f8R Bc5 f6+ Kd6 f7 Ke7 Rd3 Nf6 g8B Rh5 g7 Ra6 Bh7 Qd1 g8Q Ra4 Qg7 Qg4 Rd6 Ng8 Rf6 Rg5 Rg1 h1B Rg3 Ba3 Kg1 Rd4 Nf2 Rb5 Bg6 Bg2 Bf5 Bh3 Bg6 Na6 b8R Nb4 Rb7 Rc5 Ra7 Ba6 c8Q Rc3 b7 Qb6 c7 Nc6 b8B Rc1 Bh6 e3 Bgd3 e2 Rb7 Na7 Be3 Nh6 Rh8 Ng8 Rh7 Rc2 Qc1 e1R Qh6 Ree2 Qe1 Rcc4 Qg7 Rb2 Qh6 Rbb4 Qg7 Nh6 Qcg8 Rb5 c8Q Rc3 Be5 Rc7 Qg6 Rbb4 Q8g7 Ng8 Qe4 d6 Qc6 Bb2 Qc4 Bc3 Q8e6+ Kd8 Bc1 Bd2 Qh6 Bg5 Be3 Rb2 Rf3 Be7 Rf6 Bg2 Qg7 Bc6 f8Q+ Be8 Qff7 Bd7 Qh5 Rb5 Qhh6 Ke8 Qed5 Bf5 Qe6 Rb2 Bc1 Rc5 Qgg5 Qc7 Qc8+ Bd8 Be3 Qc6 Rbf7 Rb8 Qgg6 Qb6 Qgg7 Rc7 Q8e6+ Be7 Qd7+
3b4/K2QqR1r/p1NR2BN/4BRR1/q1QQn1r1/6b1/2B1b1kQ/nR2Bq2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 f4 e5+ d6 h5 d4 a6 b4 h4 g4 c6 f6 h3 b6 h2 b7 Be7 b5 Bf8 b6 Qc7 g6 Rh3 g7 Rb3 f5 Rh3 f7 Rh8 f6 Qd8 g5 Bd7 d5 Rh5 g6 Rh6 Ne2 Kf3 Qd4 e4 Rg1 h1Q Rg5 e3 Bd2 Kf2 Na3 Qh4 Nc4 Qc8 Be1+ Kf3 Na5 Qh2 Ng3 e2 Rb1 Qg1 Nf5 Ne7 g8Q Bg7 f8R Qg4 f7 Rh7 Nh6 Bf6 g7 Qd8 Bh3 Qh4 Bf5 Nc8 Bg6 Bg4 d7 Kg2 d6 Qe7 d8Q Ra7 Qd7 Ra8 Kc4 c5 Nc6 Ra7 Kd5 c4 Kc5 c3 Nb4 Nc6 b8B c2 b7 Nd8 Nc6 c1Q+ Bc2 Qf4 Bc7 Qf1 b8Q Rb7 Bg6 Rb4 Bc2 Ra4 Bg6 Na7 Kb6 Nb5 Bc2 Na3 Ka7 Ne6 Qbb2 Nf4 Qa2 Nd5 Qh8 Nb6 g8B Nd5 Qac4 Nc3 Bg6 Ne4 Bb8 Rg7 B8h7 Nc2 Bc7 Na1 Bb8 Nc5 Bc2 Rb4 Bhg6 Rh7 Bc7 Qe3 Bb8 Bd8 Qhe5 Ne4 Qh2+ Kf3 Qe8 Qa3 d7 Qa4 Be5 Bh5 Rg2 Qe7 Rg5 Bc7 d8R Ba5+ Rd7 Bd8 Bc7 Bg4 Rd6 Bh5 Qd7 Bg4 Bg3 e1B Be5 Bg3 Ba5 Rb2 Be1 Rb4 Rg8 Bh5 Rg7 Bg4 Bf6 Bh5 f8R Bg4 Rgf7 Bh5 Qh4 Kg2 Be5 Be2 Rff5 Rb3 R8f7 Rf3 Bh5 Rf4 Bg6 Rg4 Qh2+
2B2b2/n1pB1N2/N4N1b/Bk1K1Q1B/6b1/R1Q1B1Q1/n1r1R1Nn/1q3qQr b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 h5 Ke4 e5 f4 a5 g4 h4 b4 a4 d4 a3 f6 h3 g6 h2 g7 a2 b6 Kd6 b5 Ra3 f5 Rc3 b7 Rh6 b6 Ne7 g8B Rd3 f7 Bg7 f8B Rdh3 f6 Rh7 f7 Na6 b8N Bd7 g5 R3h6 b7 Qc8 g6 Nb4 Nd2 Ba4 Ne2 Bd7 Bh3 Ba4 Re1 h1N Nf4 Rh5 Ng2 Be8 Na6 Qd8 b8Q R7h6 Bc8 Bf6 g7 Rh7 Re2 Nc6 Qg1 Na7 Qb2 Rh2 Qc3 Bg5 Qg3 R7h3 Bh7 Qd7 g8B Bh6 Bg6 Qb5 Bh5 Bd7 Bg7 Qb6 f8Q Bg4 Qf5 Nec6 Bge6 Nb4 Bf6 Rh4 Bg5 Qb5 Be3 Qc4 Ba3 Qc1 Bb2 Qf1 Bc3 R4h3 Nb3 Rh4 Nbc5 Bf8 Nd7 R4h3 Rb1 a1Q Nf6 Na2 Ba5 Qb2 Ra1 Qb8 Kd3 Qbb1+ Kc4 Bh6 Ne1 Nf2 Ng2 Nb4 Ra3 Na2 Qh4 e4 Qg3+ Ke7 d6+ Kd8 Bc1 e3 d5 Rh1 d7 R3h2 Kc5 Ke7 d8N Bf8 Rc2 e2 Nf7 e1B Re2 Bd2 Kd4 Bdh6 Be3 Nb4 Nd7 Na2 d6+ Ke8 Kc4 Nd3 Kd5 Ne5 Ng5+ Kd8 Nf6 Nf3 d7 Ke7 Nh4 Rg2 Nf7 Rf2 Ng2 Nh2 Re1 Rb2 Re2 Rc2 Kd4 Bhg7 Ne5 Kd6 Nf7+ Kc6 d8Q Bh8 Ke4 Bh6 Qd3 B8g7 Qb3 Bf8 Qc3+ Bc5 Ke5 Kb5 Kd5 Bcf8 Bed7+
4BN1R/Q1N4K/Q1nBrrr1/qR3p1k/Q2b3n/1b1rN2Q/5N2/B4BrQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Kf3 g5 Ke4 a5 d4 c4 h4 a4 b4 c3 e6 g4 Kf5 a3 e4 a2 h6 f6 Kg6 g3 e7 c2 h5 f5 e5 g2 d6 Rh7 b6 Na6 d5 Rf7 h7 Nh6 h8Q Bd7 b7 Rh7 b8Q Bc8 b5 Nb4 b6 Ba6 b7 Nd3 Na3 Nc5 Nh3 Bc4 Bb2 c1R Qa7 Qb6 b8B Ba6 Nc2 Na4 Ne3 Rf7 Rb1 a1R Nf2 Ng4 h6 g1R h7 Ra2 Ba1 Nc5 Qa4+ Nd7 Rb5 Re2 Qf6 Qd8 h8Q Qa5 Qh3 Bg7 Kh7 Rc6 Qfh4 Rf6 Bc7 Kf7 e8B+ Kf8 e6 Nb8 d7 Ne5 d8Q Nf3 d6 Rb6 d7 Nc6 Qhe4 Nh4 Qc8 Rab8 Qcb7 Rd8 Rh2 Rfg6 Qh1 Bd4 Bf4 Ke7 Bd6+ Kf6 e7 Kg5 Qc8 Kh5 Qcb7 Ra8 d8N Rd2 Qc8 Rd3 Ne6 Rab8 Nf8 R8b7 Rb4 Bc4 Rb5 Rc7 Qca6 Bb3 Bd7 Rcb7 e8N Rb8 Nc7 Re8 Rg2 Rf6 Rg8 Ree6 Rh8 Rb8 Ng6 Rg8 Nf8 R8g6 Be8
B3q2Q/R1p3BK/bb1bN3/1B1bQrBk/Q3R3/2nR4/n1rRB3/Nb3Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 a5 Kg3 h5 Kf4 f5 g4 Kf7 e4 Kg6 d4 a4 b4 h4 e6 h3 d6 h2 e5 a3 e7 a2 e8Q+ Kg7 d7 Kh7 d5 Be7 e6 Bf8 b6 Nc6 g6+ Kh6 e7 Ra4 b7 Ra8 b8B Ra7 b5 Rb7 d6 Nf6 g7 Ne5 g8B Ra7 b6 Ba6 b7 Nc6 g5+ Kg7 g6 Kh6 g7 Nd4 Na3 Qc8 d8R Nc6 d7 Ng4 Nf3 Nd4 Be2 Ne3 Bgc4 Ng4 g8B Ne5 Bb5 Nf7 Qf1 Nc2 Ng5 Nd6 Bd5 Nb4 Nc2 Ne4 Ne6 Nc3 Bdf3 Ra8 Ba7 Rh7 b8R Rf7 Bd4 Kg6 Ke5 f4 Rb6 Ra7 Ba8 f3 Bg5 f2 Rd6 Rb7 Rg1 h1B Rg4 Kh5 Re4+ Bf3 Rd5 Rb6 Rd6 Rc6 Rd5 Nb1 Bb2 Nc3 Rd3 Qb8 Rad1 a1B R1d2 Nba2 Rc8 Nd5 d8Q Ndc3 Qed7 Rc4 e8Q Bc5 Qf6 Bb6 Kf5 Rc6 Qee7 Rc4 Rg8 Qe8 Qed6 Rc6 Qe5 Rc5 Qd4 Rc6 Qa4 Rf8 Qe1 f1B Qc1 Bg2 Qf1 Bh1 Rg4 Bd5 Re4+ Bf3 Rg6 Nd1 Bd4 Ndc3 Rg8 Bb2 Na1 Ba3 Rg6 Rf7 Rg8 Bd6 Rf8 Rh7 Qh8 Rc5 Kf6 Rh6+ Kg7 Bg4 Qg8 Rf6 Kh7 Rf5 Qgh8 Rc6 Qg3 Rc5 Bg7 Rc4 Qe5 Bf3 Rg4 Bfe4 Rg8 Qc6 Rb8 Qe8 Rb7 Rc5 Ra7 Rc6 Rf3 Bb1 Rgd4 Ne4 R4d3 Rc2 Rd4 Nec3 Rfd3+ Rf3 Rg4 Rf5 Re4+
1R4qr/N1b1RbNQ/4Q2B/N1kr3n/r4bK1/1np1R2Q/N2r1N2/2Q1RB2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 Kd6 h4 a5 b4 e5 d4 c5 b6 g5 h6 a4 h5 c4 h7 e4+ Kg4 e3 f4 a3 b7 a2 h6 e2 b5 e1B b6 Ne7 Nc3 Qd7 Rh3 Bg7 Re3 Qc6 Nh3 Ra4 Nf2 Na6 b8N Bf6 b7 Qb5 Nc6 Be6 b8R Bg8 Na7 Bg7 f6 Qb2 f5 Nc8 f7 Qb7 f8N Be5 f6 Qc7 f7 Nb6 Ne6 Bg7 f8R Qd8 Re8 Bd2 Re7 Be5 Ng7 Nc5 Rb1 a1R Na2 Bf7 Qc2 Rf8 h8Q c3 h7 Nbd7 Qg8 Bg3 h8Q Nb3 Qh3 Be5 Qgh7 Rh8 Qcf5 Qg8 Qe6+ Kc7 Re1 Bdf4 Re3 Ra5 Bd2 Ra4 Rbe1 Rd1 Rf8 Kb7 d6 Kb6 d5 Kc5 Bc1 Rd2 Rb8 Nb6 d7 Bc7 d8N Nd7 d6 Nf6+ Kf5 g4 d7 g3 Ndc6 g2 d8Q g1R Na5 Rh1 Qd3 Rh2 Qb1 Nh5 Kg4 Rd5 Bd2 Rh1 Qc1 Rh2 Re4 Bfe5 Bh6 Bf4 Nh1 Re2 Re3 Red2 Nf2
Q4N1K/N3Q2B/B1nrR3/rrnk1bB1/1B2p1Nb/RQ6/1nN3NQ/2q2r2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 Kg5 e5 f4 a3 g7 e4 Kg6 h4 g5 a2 f7 h3 f5 h2 f6 Bd7 b7 Be6 b6 Bc8 Nh3 Ra3 Nf4 Rf3 Ng2 Nc6 b8N Nb4 b7 Qc7 Nc6 Be6 b8Q Rfh3 Na7 Rf3 Na3 Rhh3 Ba6 Nh6 Kh7 Nc6 g8B Rf5 g6 Bg7 f8B+ Ne7 f7 Rf6 Bg5 c1N Qdb3 Rf2 Nc2 Bf6 g7 Rd3 Kh8 Rf5 Bh7 Ng4 Rg1 Kd7 d6 h1R d5 Nc6 Qa8 Be7 g8N Ne3 Nh6 Nd1 Ng4 Nb2 Rf1 Re5 Rf6 Bf5 Re6 Rf1 Qab8 Bd8 Bfe7 Rd2 Qa8 Ncd3 f8N+ Ke8 d7+ Kf7 Ba3 Nc5 d6 Be7 d8Q Rd3 d7 Rd6 Rc1 a1R Bb4 Ra5 Qdb8 Red5 d8Q Qc8 Bf4 Bh4 Ra1 Qc7 Ra3 Re5 Rh6+ Red5 Bg5 Qc8 Ng6 Ke6 Qb5 Nd4 Nge1 Ncd3 Nce3 Qc1 N3c2 Ne5 Qe2 Ned3 Qh2 Nc6 Qc7 Rf4 Ng2 Rf1 Qa4 Rdb5 Nf8+ Kd5 Qe7 Nc5 Rf6 Bg3 Re6 Bh4 Qb3+
R1b1R1B1/3QnKNQ/1p1N1nR1/1Q3r2/1N1n1r1b/krB1N1Rq/3Q1Q2/5n2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 a4 c5 d4 g5 h4 g4 f4 e6 a6 c4 a7 c3 a5 b6 h6 c2 h5 g3 a6 g2 h7 Bb7 h6 Qe7 f6 Qd7 d6 Be7 f5 Bc8 d5 Qc7 f7 Kb3 f8R Nf6 Ra3+ Kb4 Qd2+ Kc5 Re8 Bb7 Ne2 g1R Rg3 Kb5 Nbc3+ Kb4 Nf4 Nh5 f6 Bd8 f7 Nf6 f8Q Bc8 Bb2 c1N Nh5 Be7 Ng7 Qc5 d7 Qc6 d8Q Na2 d6 Nh5 d7 Qc4 Qff2 Qg4 Bc4 Rf1 Nd1+ Nc3 Ne3 Nf6 Rhg1 Rf8 h8N Qh3 h7 Rb1 Ba1 Rb3 Nf7 Ka3 h8Q Ne2 Nd6 Nd4 Qh7 Rf7 Bc3 Nbc6+ Kf4 e5+ Kg5 e4 Kg6 Rb8 a8Q Rb7 a7 Rf8 Ng4 e3 Bg8 e2 Ne3 e1N Qb8 Nec2 a8R+ Ra7 Qb7 Ra5 Qa6 Ra4 Qb5 Ra5 Qc7 Ra4 d8N Rf7 Ng4 Ne3 Qd7 Nf1 Ne3 Rf8 N8b7 Bd8 Nc5 Ra5 Na6 Ne7+ Kg5 Ng4 Nb4 Rf4 R1g2 Nf6 Rg1 Ned5 Kg6 Ne7+ Kf7 Ne2 Qc4 Nd4 Na6 Rh5 Qcb5 Rhf5 Nb4+ Ba6 Qd5 Ng6 Rb8 Bc8 Rg4 Be7 Q5b5 Bd8 Re6 Be7 R1g3 Nh5+ Ke8 Bh4 Ra8+ Ba6 Re7 Nf6+ Kf7 Qh1 Qfe1 Qh3 Ree8 Ne7 Qdf2 Qh2 Rg6 Qh3 Rac8 Bb7 Qed2 Ba6 Rb8 Bc8 Ra8+
1N1N1Brq/R3QnRb/4pbNB/3k2B1/2n2K1R/q6B/Nn2rn2/RQ2B3 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 a5 d4 g5 h4 c5 f4 g4 b4 c4 d6 a4 b6 a3 b7 c3 h6 c2 h5 a2 b5 e6 h7 g3 h6 g2 b6 Nf6 d5 Ne4 d7 Ke7 f6+ Kd6 f5 Bg7 f7 Bf8 f6 Ke5 d6 Bg7 f8B Nc5 f7 Ra3+ Nc3 Ra4 Nf3+ Kf6 Rh4 g1N Bh3 Ra5 Ne5 Rg8 h8B Ne4 h7 Nf2 Kf4 Nc6 b8N Ba6 b7 Nf3 Ng6 Bd3 Qe1 Qe8 d8N Nce5 d7 Nd2 Bb4 Be4 f8B Ndc4 Be3 Nf7 Qb1 c1N Bd2 Nfd6 Be1 Ra6 Bc5 Nf7 Be3 Qe7 Rg4 Qa3 Rg5 Nb2 Ra5 Rb6 Ra7 Nb3 Ne5 Nbd1 Nbc6 Nh6 b8R Nfg4 Rbb7 Bf3 Ndf7 Qb2 Nb8 Qa3 Kg3 Be4 d8Q+ Kf5 Qc7 Na5 Nd8 Rb2 Bg5 Nc4 Qd6 Re2 Rc7 Bf6 Bhg7 Be7 h8R Bc2 Rd7 Bd3 Qc7 Bc2 Rh7 Bd3 Rd4 Nf7 B7h6 Bc2 Qc1 Be4 Rb1 a1Q Qb7 Bd3 Na2 Q1c3 Ra1 Ndb2 Re4 Qd4 Qb1 Qdc3 Ned7 Qh8 Ne5 Bf6 Rg7 Bc2+ Re3 Be4 Qe7 Bd3 Rf3+ Ke4 Rf4+ Kd5 Kf3 Nf2 Rh4 Bf5+ Kf4 Bh7 Ng6
4n1QN/2k1n1N1/3R3N/q1r5/nQbB2N1/3Bp2r/rRN1Rb1p/1R1B1KB1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 h5 d4 e5 f4 a5 b6 c5 f6 e4 d6 a4 b5 e3 g6 c4 b7 c3 g5 h4 f5 a3 d5 c2 g7 a2 g6 h3 f7 Nc6 b8B Rh6 b6 Qe8 b7 Qe7 f6 Rh8 Na3 Qe8 Bb2 c1N Bd4 Rh6 Qd2 Na7 Rh2 Qe4 Rb1 a1R Qb4 Be7 f8Q Rh4 f7 Rh5 Re2 Nb5 Nf3 Re5 Nc2 R1a6 Nh2 Ra3 Ng4 Nh6 g8B Na7 g7 Ra2 Bc7 Re6 b8R Bf6 Bh7 Re8 g8N Qe5 Bd3 Nf5 N8h6 Ba6 Qg8 Rc8 f8R Be7 Rf6 Ng7 Bg2 Nc6 Kf1 Qh5 Bf3 Ne8 Rb6 Bb5 Bb8 Kd8 d7 Nb3 Bh2 Nc5 Rd6 Bc4 Bg1 Kc7 d8N h2 Ndf7 Bh4 Nh8 Na4 Qe1 Ra7 R6b2 Nf6 N6f7 Rf8 Nfh6 Rf7 Rd2 Ra6 Bd1 Qg5 Re6 Ne7 Re2 Ra5 Qb4 Ne8+ Rf6 Bf2 d6+ Kc8 d7+ Kc7 Rg6 Rf3 d8N Rh3 Rd6 Qd5 Qd2 Qa8 Qb4 Rc5 Ne6+ Kc8 Bg6 Qa5 Ng7 Kc7 Bd3
1kB4b/Bq1RR1q1/3N1Qr1/2n2n1Q/1rN2Qp1/RRR2b2/Q1q2p2/K1B4B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 e4 c5 d4 Kc7 Kd2 f5 Kc2 g5 Kb2 a4 h6 g4 e6 c4 e5 f4 e7 f3 e8R f2 d6+ Kb7 h5 Qh4 d5 Qe7 b6 Bg7 b5 Nf6 h7 Na6 h6 Nb4 d7 Nc2 d8R Bf5 e6 Nd7+ Nc3 Ne3 d6 Nc5 d7 Ra6 Qd2 Bd4 Nf3 Qg5 e7 Nd5 Ne5 Nb4 Bg2+ Be4 Rh3 Nc6 Bh1 Qf6 Ra3 Nb4 Ka1 Qg7 Qa2 Rg8 h8Q Qg5 h7 Qh5 Qf6 Ra5 h8Q Qf7 Qh5 Bf3 Rg3 Be3 Ne4 c3 Nc4 c2 Rc3 Ra8 Ra3 Rc8 Ned6+ Kb8 b7 Rg6 Rc3 a3 Rh3 Kc7 b8R Bd4 Ra8 Rb8 b6+ Kc6 b7 Kc7 Ra4 Nc6 Rb4 Be5 Rb3 Nd4 Rg3 Nf5 Rh3 Ra8 Rg3 Ra4 b8Q+ Kc6 Qb4 Kc7 Rh3 Bg2 Rd3 Bf3 Ra8 Qd5 Ra5 Qb7 d8B+ Kb8 Bb6+ Qc8 Ra7 Bd4 Rd7 Be5 Qb5 Rb4 Qc6 Bd4 Qe4 Be5 Qf4 Bd4 Rf8 Be5 e8B Qb7 Rff7 Bd4 Qb1 a2 Rfe7 Be5 Bf7 Bd4 Be6 Be5 Be3 c1Q Bd2 Qc2 Bc1 Bd4 Ra3 Be3 Rcb3 Bd4+ Rdc3 Be5 Rc7 Bd4 Bc8 Be5 Rcd7 Bd4 Qe6 Bh8 Qf6 Nd4 Q6e5 Rh6 Rd3 Qd1 Kb2 Rg6 Re3 Nf5 Qc3 Qd4 Rd3 Qg7 Qf6 Bc6 Rc3 a1Q+ Kc2 Bf3 Qa2 Na4 Rd3 Qe5 Kb1 Qe2 Rc3 Nc5 Ka1 Qc2 Ba7+
1r4Rn/Q2r3N/B5b1/B1bqQ1K1/kpB2p2/N2Bq3/nB1RN1NQ/3rQ3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 a4 c5 h4 b5 d4 f5 e6+ Kc7 h6 c4 h7 g4 Kf4 g3 e4 c3 e7 b4 e8N+ Kb7 h5 c2 h6 g2 a6+ Kb6 d6 Ka5 e5 Qb6 e6 Nc6 a7 Ne5 e7 Qc5 d7 Ba6 d8B+ Qc7 d5 Nc6+ d6 Bb7 Ne2 g1R Qe1 Rg7 Bb2 Rg3 Na3 Nd4 Rd1 c1Q+ Rd2 Qc4 Rg1 Qc6 Nf6 Rd3 e8B Rh3 Bf7 Rd3 Bc4 Nb3 Kg5 Qf3 d7 Rc8 a8Q+ Ba6 Qa7 Qb6 Bc7 Rd4 d8N Be7 Ne6 Re8 N6f4 Qd5 Ng2 Bc5 Bd3 Ne7 Bd8 Rhf8 h8Q Rf7 Nh7 f4+ Qe5 Ref8 Bb5 Rc4 Nf6 Qb7 h7 Qa8 h8Q Rg8+ Kh6 Qb7 Qa8 Be3 Nc1 Rfg7 Nh4 Rf7 Rg5 Bd4 Ng2 Re8 Rg8 Ng6 Kg5 Qd5 Qh2 Rd7 Nh7 Nh8 Qb8 Rc3 Bbe2 Bd3 Qc7 Ka6 a5 Rc4 Qc5 Bg6 Bc7 Rb8 Bd8 Ka7 a6 Bf2 Qd4 Rcc7 Qe3 Qbc5 Bb5 Kb6 a7 Ka5 Ba6 Ka4 Bfd3 Qb6 Ne2 Rc1 Bac4 Rd1 a8B Nc1 Bb7 Na2 Bba6 Qbd4 Bc7 Q4e4 Qb6 Bc5 Qa7 Qe3 Ba5
2KR3B/6Q1/1RnBBq2/Q2Qp2N/NrN5/Q2n4/b1bNp1Bb/q1Nkr3 b - - 0 1 illegal: Other
1bBB4/1q1b1RQ1/2p1R1nq/NQ6/2rN1NR1/4KpNR/2NB1r1B/b3nk2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 b4 g5 h4 a5 d4 f5 e4 g4 e6 Kf6 b6 f4 e7 a4 e8Q f3 b7 g3+ Ke3 a3 b5 g2 e5+ Kf5 e6 Kg4 e7 Kg3 h6 a2 h5 Nf6 h7 Bg7 d6 Na6 b8B Rg8 h8N Bg4 d5 Qc8 d7 Qb7 d8B Qb6+ Qd4 Qb7 h6 Ra7 b6 Qc6 d6 Qb7 h7 Ne4 d7 Be6 Ng6 Rh8 Nf4 Nd2 Rh3+ Kg4 Nge2 Bh6 Na3 Bf5 Nc2 Nc5 Ng3 Ra4 Ba6 Rc4 Qg7+ Bg5 Rb1 a1B Rb4 Nd3 Ra4 Rg8 h8R Ne1 R8h6 Rh8 Rf6 Rh6 Rf7 Rg6 Nd4 Bf6 Nc2 Bfe5 Qef8 Be6 e8R Rg5 Qb4 c6 Nd4 Bf5 Re6 Rg6 Bd6 Rg5 Qb5 Rg6 B6e7 Bb8 Bc7 Rg5 d8N Rg6 Rd6 Bd7 Re6 Ne4 Bed6 Ng5 Bd2 Nh7 Be7 Nf8 Bcd6 Qa7 Bc8 Qb7 Be5 Rg5 B5d6 Ng6 Rb4 Qa8 Nb7 Rd5 Na5 Qb7 Bd8 g1Q+ Ke4 Qh2 Ke3 Qa7 b7 Rdc5 Rh7 Qh6 B6c7 Rc2 Be5 R5c4 Bd6 Bc7 b8N Qb7 Na6 Bb8 Ra4 Rb2 Nb4 Ra2 Bc1 Rh2 Nbc2 Rf2 Bd2 Qh5 Ng2 Kh3 Nf4+ Kh2 Rh8 Kg1 Be5 Qg5 Rh3 Qh6 Ndb3 Bc7 Nh1 Qh5 Ne2+ Kf1 Bh2 Rc5 Rg4 Qh6+ Nf4+ Rc4 Nbd4 Bb8 Ng3#
2NR1q2/kNp1q1Br/pBb1n1Q1/K1Q1R2Q/Qr1Nb3/1B2Bn2/1B3b1N/8 b - - 0 1 illegal: No possible last move
k2N1NB1/p1K1nR2/2b2Nrp/1N1RB1n1/3qQ1Q1/1BQ3bQ/B4nr1/2B3q1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 e5 Ke4 c5 d4 Kc7 b4 Kb7 f4 c4 g4 c3 f6 c2 d6 h6 Kd5 e4 d7 e3 g6 e2 b6 e1Q g7 Na6 b5 Qe3 f5 Qh3 f7 Qd3 f6 Rb8 g5 Nc5 g6 Qc7 d8N+ Ka8 Nh3 Bd6 f8N Qb3+ Bc4 Be5 f7 Qc3 Ng5 Ne6 Ngh7 Qe3 Qg4 Nc5 Rh5 Qb3 Nc3 Bd7 Nf6 Qb1 Ba2 Rc8 b7+ Kb8 Bb3 Bg3 Ra5 Be5 Rf5 Ne4 Rf2 Bc6+ Ke6 Qa1 d5 Rh7 d6 Bf4 d7 Ne7 g8B Nf5 g7 Bh2 Rf3 Qf4 Ba2 Kc7 b8B+ Kb6 Be5 Kc5 b6+ Bb5 b7 Ne7 b8Q Bg3 Qa8 Kb6 Rf2 Ba4 Rd5 Bc6 Nb5 Ng5+ Kd6 Qfd4 Rf5 Ka6 Qh3 Rb8 Kc7 Qb1 Nb7 Qba1 d8Q Qg1 Rf4 Qad4 Qdd7 Rd8 Qdg4 Rd6 Nd8 Rh8 Bd2 c1N Rf3 Nd3 Bc1 Nf2 Qac8+ Bb7 Qcf5 Ba8 Qfe4 Bc6 N8d7 Rh7 f8Q Re6 Qe8 Rd6 Nf8 Rh8 Bf7 Rh7 g8B Rg7 Qd3 Rg6 Qc3 Re6 Bef4 Re2 Be6 Nd1 Be5 Rg2 Rd7 Nf2 Beb3 Nc8 Rf7 Ne7 Rd3 Qe4 Rd5 Qd4 Kd6 Kb6 Qed7 Ka6 Qe4 Kb6 Qdg4 Ka6 Nde6 Kb7 Nd8+ Ka8 Kc7
2R5/1BKB1q1B/1Q1nRb2/pR2n1Bb/4N1pk/1Q5r/b3R1R1/r1Q1NbQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 f5 Kc4 a5 Kd5 g5 h4 d6 c4 f4 b4 f3 e4 f2 h6 g4 e6 Kf6 e7 Ba6 e8R Qe7 e5+ Kf5 c6 Bg7 h5 Bb7 h7 Qf8 h6 Na6 b6 Qf7+ e6 Nb8 b5 Qc7 e7 Bd4 c5 Ba6 b7 Bf6 b6 Bd3 Nd2 Kg5 Rh2 Bg6 Ne4+ Kf5 Rb1 Ba1 Rb5 Qc8 c7 Bc3 c6 Be5 Rg2 Qd8 c8B+ Qd7 c7 Bc3 Bg5 Bh5 Nf3 Be1 Bd3 f1B Qc1 Bc3 Ne1 Nc6 b8Q Bf6 Bb7 Ne5 c8R Kg6 Qbc7 Rb8 Q7c4 Qf5 Qb3 Qf2 Ke6 d5 Kd6 d4 Kc7 Qf4 Bc2 d3 Re2 d2 Bb1 Bg7 Bc2 Nf6 Bb1 Rg8 h8Q d1B h7 Rf8 Rg2 Bde2 Bc2 Bc4 Bb1 Rf7 Qf8 Kf5 h8R Be6 Rg8 Bh8 Bc2 Rh7 Rg6 Qf3 Qh6 Bf7 Qbe3 Ba2 Qg1 Qb3 Bd3 Qf7 Bb1 Nd7 Rc6 Bf6 Re6 Nc5 Bc2 Bg6 Qh3 Bh5 Qb3 Kg6 Red8 Rh6 Rdd2 Kf5 Rde2 Rh8 Ba8 Nb7 Bd3 Nd6 b7 Qg8 e8B Qf7+ Bd7 Rh7 Rce8 Rd8 b8Q Rc8+ Kb6 Rc3 Bc2 Rh3 Kc7 Kg6 Qh1 Rc3+ Bc6 Rc5 Qd2 Rc3 Bd3 Rc1 Qdc3 Ra1 Qg1 Rh6 Qc1 Kf5 Rc8 Be7 Bf4 Bf6 Qbb6 Bg6 Bb7 Rh3 Bb1 Bh5 Bd3 Kg6 Ng5+ Kh6 Bde4 Bg6 Bf5 Kh5 Ne4 Kh4 Bd2 Bh5 Bh7 Qg8 Be3 Qf7 Bg5+
1R1qr2B/2b1Qrr1/n1Qp1N1Q/B1Q2r2/4nR1N/3bRp1K/4k3/1BB3RQ b - - 0 1 illegal: No possible last move
nR1BB1q1/2r1Q3/ppQQ2bb/N1r1Rp2/Q1Q2B2/n1BKN3/4N1N1/5kr1 b - - 0 1 illegal: No proof kernel
R2Q1r2/b1Q1pNNp/5bB1/2qn3Q/2N1bB1R/Qrp5/5NRK/Rk1n3Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 b4+ Kd4 g6 c5 g7 a5 f6 a4 f7 a3 f5 a2 b6 c4 d6 c3 b7 Na6 b8Q Qc7 b5 Be6 b6 Ra7 f6 Qc5 d7 Bb3 d8N Ra8 b7 Qa5 Rh4+ Kd5 d4 Qa3 Nd2 Qc5 Nh3 Qb4 Bd3 Ra7 Qc7 Bc4 b8R Qb2 Bg6 Qb4 Nf2 Qb3 Kh2 Qb1 g4 Bb5 g5 Bc6 Qh1+ Qe4 Nc4 Nb4 Ra8 Nd3 Bf4 Rb7 Ne6 Nb2 Nd8 Nh6 g8Q Bg7 Qe8 Rb3 f8N Ng8 f7 Nd1 Nfe6 Nf6 f8Q Qf3 Qff7 Rf8 Qg8 Qe4 Nf7 Bh8 Ng7 Bb7 Rb1 a1B Rb2 Qf3 Rba2 Bb2 Qa4 Bc1 Qa6 Be3 Qa3 Rb8 Qgc8 Bc6 Qg4 Rf8 Qh5 Qe4 Qf1 Qe5 Qh3 Bd7 Qf1 Bf5 Qh1+ Be4 Qca5+ Kc6 Qc7+ Kb5 d5 Ba7 d6 Nd5 d7 Qd4 d8Q Qc5 Bf5 Qe3 g6 Qc5 Ne6 Bf6 g7 Bb1 g8R Be4 Qc1 Kb4 Rg2 Rb1 Ng7 Kb3 Bg6 Rb2 Qe3 Kc2 Qd4 Kb1 Qde5 Bb8 Qed6 Ba7 Qa6 Rb8 Qa3 Rb3 Ra1+
1QR3bk/Qb5n/1rn1n3/QQQQ1BNR/3QKB2/5nr1/1Q4B1/n4N1q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 Kg7 f4 c5 b4 e5 g4 a5 b6 h5 b5 a4 g6 h4 b7 h3 f6+ Kh6 g7 Kh7 f5 c4+ Ke4 c3 d4 c2 d6 a3 d5 a2 g5 h2 d7 Qa5 d8Q Ne7 d6 Qd2 d7 Qf2 f7 Qh4+ Bf4 c1N g8B+ Kg7 f6+ Kg6 b6 Na6 b8Q Qh3 b7 Nc6 Qa7 Nab4 b8Q Bg7 f8Q Ncd3 f7 Rh6 Bg2 Nd5 Qfc5 Bb7 f8Q Bh8 Bf7+ Kh7 Qdb6 Qh5 d8Q Nf6+ Kf5 e4 Qcb5 e3 Nd2 e2 Nf1 e1N Qfc5 Qh4 Be6 Nf3 Rc1 a1N g6+ Kg7 Bd7 Nh7 Nh3 Qe1 Ng5 Qh4 Qa2 Ra3 Ke4 Rb3 Bf5 Qe1+ Be3 Nf4 Q6a7 Ne6 Qda5 Rh3 Qae2 Rg3 Bf4 Rb1 Qbd3 Rb6 Qdb5 Kh6 Rc3 Bd4 Rc2 Kg7 Rc4 Qc3 Qeb2 Qc1 Rc2 Kf6 g7 Qb1 Rg1 h1B g8Q Qc1 Qgd8+ Kg7 Qdd5 Qb1 Bgh3 Bg2 Rh1 Qc1 Ne3 Bf1 Bg2 Bc4 Nf1 Bb3 Rh5 Ba2 Qc7+ Kh8 Qcb8+ Ned8 Qdd6 Bg8 Qdd5 Ne6 Qcb4 Ncd8 Rc8 Nc6 Q4c4 Qc3 Qcc5 Qe1+ Ne3 Qg1 Nf1 Qh1 Q1xd4+
1B4nQ/b4QRr/3K1Q1r/1qRb3p/nr2r3/k1N1NBQ1/1R3Q2/2QQQ3 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 c5 g4 h5 d4 c4 f6 e6 d6 c3 d5 c2 b6 Ra7 g6 Qe7 d7 Nh6 d8Q Ra8 d6 Qd7 g7 Qe8 g8R Bd7 a6 Bg7 f5 Qf7 g5 Ra7 b7 Qg6 Qa5+ Kb3 Qae1 Qe8 g6 Bc6 d7 Bb5 d8Q Qf7 Nf3 Qe8 Be2 Nd7+ Kd6 e5 b8Q e4 f7 e3 f8Q Bd4 g7 Nc5 f6 Rb7 f7 Ra7 Rh2 Re7 a7 Na6 a8Q Rc7 Qf6 Nc5 Nc3 Qc8 Ra5 Qf5 Nh4 Na4 Qc6 Rh7 Bf3 e2 Ng2 Ba7 Bf4 Rb7 Ne3 Bc4 Rc5 Bd5 Qf8d8 Kb2 f8Q c1R Qdb6+ Ka3 Q8f7 Rb1 Qbe8 Rc7 Qg3 e1R Rb2 Rb7 Qe4 Rc1 Qb1 Re2 Qce8 Rcc2 Qbc1 Qd3 Qge1 Qb5 Bh2 Rcd2 Qee5 Rd4 Q5g3 Rb4 Qa6 Re4 Nf5 Rg2 Qgf2 Qa5 Qad3 Rh4 Be4 Qb4 Ke5 Bb3 Q3f3 Rg1 Ne3 Rg6 Bf4 Ba2 Q3g3 Bd5 Bf3 Rhg4 Rf8 Qa5 g8Q Rb4 Qgh8 Qb5 Rg8 Rh4 Rg7 Ng8 Qc7 Rgh6 Qcf7 Be4 Ke6 Bc6 Bc7 Rhe4+ Kd6 Bd5 Bb8
Kn4N1/b5k1/1B1q1N1N/5Nr1/n1b2Q2/Rq3QNR/BN1p2Nn/b1N1R3 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 h4 f4 hxg5 f3 e4 Kf7 g6+ Ke8 g5 Ra6 g7 Rh6 g6 Rh5 Qd2 Rg5 Qd1 Rg3 fxg3 Nc6 g4 Nb8 g5 f2+ Kd2 Nh6 Bc4 f1N+ Ke1 Ne3 Bf1 Nef5 exf5 Ng8 Ke2 d5 Kd3 h5 Kd4 e6 c4 a4 b4 h4 c6 a3 c7 a2 f6 h3 c5 h2 f7+ Ke7 b6 Nh6 g8N+ Kd7 g7 Ng4 b5 Be7 f8N+ Ke8 b7 Kf7 b6 Qd6 c6 Qd7 g6+ Ke8 Ne2 Bf6+ Kc5 d4 Be3 d3 Nc1 e5 Qf3 d2 Bc4 e4 Na3 Qd8 Nh6 Bc3 g8N Ba5 g7 Nf2 Ng6 Qd3 Nh4 Qd8 Ng2 Be6 c8N Bd7 c7 Ba4 Re1 h1N Nce7 Nd1 c8N Bb5 Nef5 Nc3 Ng3 Nf2 Nce7 Ng4 Nef5 Nh2 Bd5 Be2 Nc4 Na4+ Kb5 Qd6 Nf6+ Kd8 Bf2 e3 g8N Bf1 Bf7 e2 Nb2 Rh7 Be6 Rg7 Bc4 Rg5 Bd5 Nc6 Ka6 Nb8+ Ka7 Bc3 Ka8 Bd4 Nfh5 Ke8 Nhf6+ Kf8 Bb3 Nc6 b8R+ Nd8 b7 Ba7 Rd1 e1Q Bb6 Qee6 Re1 Bc4 Rc8 Qe3 b8Q Qed3 Rc5 Qc3 Qc7 Nc6 Rd5 Nb8 Rd3 Qdb4 Qcf4 Qd6 Rb1 a1B Ba2 Qcb4 Ra3 Qb3 Rh1 Ng4 Rh3 Nh2 Nce2 Nc5 Re1 Na4 Nfh4 Kg7 Nc1 Rd5 Nge4 Rb5 Ng3 Rg5 N4f5+
B1KnNrkB/1r1nQ2b/2Q5/RQbq4/R4b1q/1N1r4/2QN4/q1QQQ2Q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 a5 Kc4 c5 b4 e5 d4 g5 h4 g4 f4 g3 d6 e4 Kd5 a4 h6 g2 b6 c4 h7 a3 d7 e3 f6 e2 b7 e1R h5 c3 b5 c2 b6 a2 f5 Bg7 Kd6 Qe7+ Kc7 Ra3 d5 Rb3 h6 Re6 d6 Rg3 Bb2 c1B Rh4 Re1 Ne2 g1Q Ra4 Be3 Nd4 Qh1 Qc2 Rf3 Bg2 Rff1 Nd2 Bf4 N4b3 Qe8 d8Q Kf8 f7 Ne7 Qd7 Rg8 h8Q Bg5 h7 Bc3 Qc6 Ng6 d7 Ba5 d8Q Qh6 Qhc3 Ne5 h8Q Nbd7 b8Q Bb7 Qbc8 Qg7 Qh1 Qh7 Bf3 Kg7 f8N Qh4 Nh7 Re3 Nf6 Qf7 Ne8+ Kh8 f6 Rf8 Qe7 Qd5 f7 Bb4 Qcd8 Bc8 b7 Bc5 b8Q Bf4 Qbb5 Rd3 Qc1 Re1 Q3c2 Re4 Qee6 Rb4 Qde7 Bb7 Qhd1 Ba8 Kc8 Kh7 Qh3 Kh8 Qhh1 Kh7 Qca6 Nc6 Qee1 Nd8 Qbc6 Rb7 Qab5 Rg8 f8Q Rh8 Rb1 a1Q Qfe7+ Kg8 Bg2 Rh5 Bh8 Rf5 Rb2 Rf8 Rba2 Qf3 R4a3 Ra7 Qcb6 Be4 Ra5 Bh7 R2a4 Qfh5 Ba8 Qd5 Q6a6 Rb7 Qac6
rkqQQ2b/1q1NNQn1/r3Q1N1/1b2b2Q/6Qn/Qr2B2Q/2RK2B1/2R3n1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kd7 f4 e5 b4 a5 d4 c5 d6 g5 h6 c4 d5 g4 b6 e4 b7 e3 f6 g3 h5 g2 h7 c3 f5 a4 b5 e2 f7 a3 f6 a2 b6 c2 h6 Ra7 Be3 c1N Nc3 Ne7 Nh3 g1R Nf4 Ra6 Ng6 Ra4 Rh2 Na6 b8Q Rg2 b7 Nb3 Rc1 Bg7 f8Q a1B f7 Rg8 h8Q Bf6 h7 Nd4 Qa7 Ra3 b8Q+ Nc7 Qbb6 Nef5 Qfg7 Bb7 f8N+ Kc8 Qf7 Nce6 Qbb3 Ra2 d7+ Kc7 Qa6 Bc6 Qb2 Ra5 Qa3 Qe8 Qc4 Ra6 d6+ Kb7 Nd5 Ba4 Bf4 Rg3 Nde7 Rc3 Be3 Qa8 Nc8 Bb5 Qda4 Qa7 Nce7 Ka8 Rf2 Qb7 Bg2 Rb3 Qa4b4 Ng3 Qc6 Ndf5 Qg4 Bae5 Qd5 Ned4 Qde6 Nh5 Rf1 Bg7 Rc2 Bgf6 Kd2 Nf3+ Kc1 Ng1 Kd2 Bg7 Rfc1 Bh2 Bg5 Ba1 Qc3 Nh4 Qch3 Bf6 h8Q Bhe5 Qhh7 Bh8 Be3 Ng7 Qhh5 Ngf5 Nh7 Ng7 Nf6 Rb8 d8Q Rc8 d7 Rb8 Qde8 Rc8 Rc4 e1Q+ Kc2 Qc3+ Kd1 Rb8 d8Q Rc8 Rc5 Ka7 Nd7 Ra8 Rc8+ Qc5 Bg5 Qcc7 Kd2 Qcb8 R8c2 Q8c8 Nf6 Kb8 Bf4 Bc6 Be3 Bb5 Nd7+
1QR4r/2n1N2N/2bKbq1B/bkBQr3/2bQ1rBQ/3b1Q1Q/4Q1Q1/3n2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 a5 Ke3 d5 Kf4 Kd7 g4 h5 c4 f5 e4 h4 b4 a4 e6+ Kc7 Ke5 h3 b6+ Kc6 e7 f4 e8Q+ Qd7 g6 d4 g7 a3 b7 a2 g5 d3 g6 d2 b5+ Kc7 c6 Kb6 c5+ Ka5 b6 h2 c7 f3 c6 f2 Qf3 d1B Nh3 Ra6 Qe7 Ba4 Ng5 Nf6 g8Q Qd3 g7 Qc2 Qd5+ Qc5 g8Q Rh3 Nc3 Nh7 Rg1 h1B Be2 Bf5 c8Q f1B c7 Be6 Qcd8 Bb5 c8Q Nf6 Nh7 Qd4+ Kd6 Bg7 e5 Rh2 Bh6 Ng4 Qh4 Nf2 Rc1 a1R Qdd7 Bf6 Qgg2 Bd8 Qc5 Qf4 Qcd4 Ra4 Bd1 Bd3 Be2 Bg8 Qdh3 Qf6+ e6 Nd1 Rc2 Ra7 Rc1 Na6 b8B Nc7 b7 Ra8 Ba7 Rb4 Bc5 Bbc4 b8Q Rb5 Qgg3 Rf2 Qfg2 Rf5 Bg4 Rf4 Q3f3 Bf7 Qf5 Bg8 Nd5 Ka4 Ne7 Ka5 Ba7 Re5 Bb6+ Kb5 Q5e4 Na6 Bc5+ Bb6 Qee2 Nc7 Qbb7 Rf8 Qbd5 Ba5 Nf5 Qg5 e7 Be6 Rc3 Rh8 e8Q+ Bd7 Qd8 Be6 Ne7 Qf6 Qb8+ Bb6 Qdb7 Nf2 Qfe3 Bb3 Qgh2 Na6 Ba3 Nd1 Rc8 Bbc4 Bc5 Nc7 Q7a8 Bhd5 Qe3f3 Bb7 Qh2g2 Ba5 Bb6 Bc6 Qab7 Bcd7 Qbe4 Bc6 Qed5+ Kb4 Bc5+ Ka4 Qa7 Kb5 Qb8+
6n1/2B3nQ/1Br1QBRr/3q4/2N1k1KQ/nR1brp2/BBp3N1/2b2BBB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 d4 g5 h4 f5 e4 a5 b4 g4 h6 a4 e6+ Kd6 h7 a3 b6 c4 b7 c3 b5 a2 e7 c2 e8B Ne7 h5 Nbc6 b8B+ Qc7 h6 Bd7 b6 Ra7 b7 Ne5 Qe2 Be6 Nd2 N7g6 Bb2 Nf7 e5+ Ke7 d6+ Kd8 d7 Ke7 d5 Qd6 Nc4 Bg7 d8B+ Kf8 Nh3 Ra6 Rb1 a1N Nf4 Ng5 Ng2 Rc6 Bf6 Nb3 Bc7 Nd2 b8B Ne7 Rg1 Ng8 Ba7 f4+ Kh4 g3 Bf7 Bf5 e6 Qc5 d6 Bd3 d7 Qb5 d8B Qd5 Nce3 Nc4 Kg4 Na3 Nc4 Nf3 Bab6 Nh4 Bfd4 Be5 Bf6 Nf5 Bf2 Bd4 Qe1 Be3 Qe2 Nge7 Bg8 Ng7 Bf7 Rg8 h8Q Bc1 Qh7 Rh8 Bg8 Nef5 e7+ Ke8 Bfe5 Kd7 e8B+ Ke7 Bef7 Kd7 Bh5 Ne7 Bgf7 Re8 Bf6 Ng8 Bhg6 Re3 Be4 Rf3 Nh4 Re3 Bh1 f3 Rg2 Rd6 Bg1 Kc6 Qe1 Re8 Qe6 Re7 Re2 g2 Re5 Re8 Rg5 Rc8 Rg6 Re8 Bge3 g1R+ Ng2 Re7 Be2 Re1 Bg1 Re8 Bf1 Re3 Qh8 Rc8 h7 Ne7 Qd8 Ng8 h8Q Qe5 Ba5 Qd5 Qh7 Kc5 Bfe5 Rc6 Qdh4 Ra8 Bf6 Raa6 Bab6+ Kb5 Qe5 Ra5 Bb8 Qc5 B8c7 Kb4 Nd2 Qc4+ Qe4 Rh5 B2d4+ Qb3 Bd5 Rh6 Qe6 Kb5 Ba1 Kb4 Ba5+ Kc5 Bc4 Qb8 Ba2 Qd8 Rb3 Qd7 Bab2 Qf7 Qc8 Kd5 Nc4 Ke4 Bab6 Qd5 Qe6+
1R1R4/1Bp5/1qk1b1b1/1r1N1NRB/Qq2Q2q/B1NQ4/1p1B1n2/1KN4Q b - - 0 1 legal: proof: e4 g5 f4 b5 a4 d5 b4 a5 bxa5 f5 exf5 d4 h4 b4 g4 d3 cxd3 Na6 d4 Rb8 d5 Rb5 axb5 Nb8 Nf3 Nc6 Ng1 Nd4 f6 Nf5 gxf5 g4 Bc4 Bh6 Bf1 Bg5 hxg5 Qd6 Rh6 Qd7 Rh1 Qd8 d4 Kd7 Kd2 e5 Kc2 h5 d6 e4 f7 h4 f8N+ Ke8 g6 e3 d7+ Ke7 f6+ Kd6 f7 g3 g7 e2 b6 e1Q f5 h3 a6 g2 f6 h2 a7 Rh3 a8B Bb7 d5 Rh6 Ne2 g1Q Ra5 Qg5 Nbc3 b3+ Kb1 b2 Bd2 Rh7 Nc1 Nh6 g8N Qee7 Be2 Qee3 Ne7 Qge5 Qa4 Qe6 Bh5 Ng4 Rd1 h1B Nfg6 Rh6 f8Q Bf3 f7 Ne5 Qh8 Nc4 f8B Qg4 Nh4 Rf6 Nhf5+ Ke5 d6+ Bbd5 b7 Qb6 b8R Ne3 Bb7 Qgb4 Rb5 Ke6 Qh6 Bc4 Ned5 Ng4 Ra5 Qe7 d8Q Nf2 d7 Bh1 Qe3+ Be4+ Qd3 Rg6 Qe8 Rg5 d8Q Ke5 Qec6 Qf6 Qde8+ Qfe7 Ng7 Bg6 Nf5 Bb3 Qcc4 Ke6 Qh4 Ke5 Qhh3 Qh4 Qec6 Qeb4 Qcc4 Ke6 Rb5 Kd7 Qce4 Q4d4 Ba3 Qb4 Qhh1 Bc4 Nf4+ Bd5 Qde2 Be6 Nfd5 Rg4 Q4d3 Rc4 Qee4 Rc5 Ra5+ Rb5 Rg1 Qg3 Raa8 Qh3 Rg5 Qh4 Ba6 Kc6 Rd8 Q6d4 Rab8 Qb6 Bb7+
2n1k1NR/1Q2p2r/n2R1p2/2B1N3/2r4N/1BN4B/pQ2p1r1/B1KQ2QR b - - 0 1 illegal: Other
7Q/1R3nQN/br2BbkN/NQ3N1r/K1B2bBq/4R3/1Rn2Q2/4B1rq b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 g4 Kf7 f4 e5 d4 h5 Kd2 c5 Kc2 e4 Kb3 c4+ Ka4 c3 d6 e3 b6 e2 d5 e1R b7 h4 a6 c2 f6 h3 a7 h2 f5 Rh6 d7 Rh5 d6 Re2 Nd2 Qb6 d8R Rh3 d7 Re8 Nc4 Na6 b8Q Rb3 Nf3 Re5 Qd4 Bb7 Ra2 Rb2 Qf2 Ne7 g6+ Kg8 g7 Kh7 g8N Nc6 g5 Qc5 f7 Be7 f8Q Nd4 g6+ Kh8 g7+ Kh7 f6 Bc8 f7 Nc7 Re8 Rg5 d8Q Rg1 Nh6 Nce6 g8B+ Kg6 Nh4+ Kh5 Qb5 Nc7 Na5 Bb7 Bc4 Qg5 N4f5 Ba6 Bd2 c1B Be1 Bf6 Re3 Nc2 Be6 Rc8 a8B Kg6 Bf3 Qh4+ Bg4 Ne8 Qd4 Rb3 Rb2 Nd6 Qde5 Rc5 Qc3 Bd8 Qh8 Bf6 Bc4 Rf1 Rg1 h1Q Rgg3 Rd5 Re7 Be3 Rb7 Bf4 Re3 Rc5 Qc8 Rg1 f8N+ Kg5 Qb8 Nf7 Nh7+ Kg6 Qf8 Rd5 Qd7 Rb6 Qb5 Ne5 Be6 Nf7 Nd4 Rg5 Ndf5 Rh5 Qfg7+
rn2B3/bR4BB/r1RQ2bN/1Q2Q1bN/N2Q2K1/R3q3/Nn2B3/2bk3n b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kf7 Kf3 c5 g4 h5 d4 e5 g6+ Kf6 g7 c4 b6 h4 b7 c3 d6 h3 a6 c2 g5+ Kf7 g6+ Kf6 d7 e4+ Kg4 e3 f4 e2 d5 e1B d6 h2 a7 Qc7 d8N Qc5 d7 Bb4 Nf7 Qd5 d8Q+ Bbe7 Qa5 Rh6 Nc3 Be6 Na2 Qc5 Ne2 Qc3 Ng3 Qd4 Qb5 Qd3 Bb2+ Qd4 Bd3 Bd8 Nh5+ Ke7 Qe2 c1B Qee5 Rh8 Nh6 Be3 Rhc1 h1N Rc6 Na6 b8R Bc7 Rb7 Bc1 Bc3 Qe3 Bd4 Rb8 a8N Nc5 Nb6 Ra8 Na4 Ra6 Bb2 Kd7 Bc3 Bf7 f6 Be8 f5 Be7 f7 Bg5 f8Q Ne7 g8B Bf7 g7 Bg6 Bgc4 Rg8 Qff6 Rga8 Be4 Nd3 g8B Nb2 Bcf7 Bh7 Bd3 Bg6 Re6+ Nc6 Bh7 Kc8 Bd4 Bb6 Be8 Nb8 Qh8 Ba7 f6 Kd8 f7 Kc8 f8Q Kd8 Rd6+ Kc8 Rbb6 Kc7 Rdc6+ Kd8 Qef4 Qe7 Nb4 Qe3 Q8f5 Ke7 Ra3 Ng3 Na2 Nh1 Rc8 Nc6 Qff8+ Ke6 Rb7 Nb8 Bf6 Qc5 Rc6+ Kd5 Qb6 Qe7 Qh2 Qe5 Qb5+ Kd4 Qd6+ Ke3 Qg1+ Kd2 Qgd4 Kd1 Qg7 Bb6 Qge7 Ba7 Bg7 Qe1 Qee5 Qe3 Be2+
1KQ1R3/1Q4N1/Nn2qrqB/1QQ1n2B/1RBq2R1/k1R3N1/2rp1n2/1B1b4 b - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 g5 a4 f5 axb5 e6 e4 f4 h4 f3 hxg5 Nh6 g6 Ke7 g5 Ke8 g7 Bd6 g6 Bg3 fxg3 Ng8 g4 f2+ Kd2 Qe7 g5 Qf8 Bh3 f1N+ Ke1 Ng3 Bf1 Nf5 exf5 Qf6 Qe2 Qe7 Qd1 Qd8 Kd2 Ke7 Ke3 d5 Kd4 a5 Ke5 h5 b4 d4 c4 a4 b6 h4 b5 d3 c6 a3 b7 h3 f6+ Ke8 c7 Kd7 b6 Kc6 c5 Kb5 c6 Kb4 f7 a2 f8Q+ Qe7 Qdf3 h2 Na3 Nh6 g8R Nf5 g7 Ng3 g6 Ra4 Nc4 Rh7 Ne3 Na6 b8Q Ra3 b7 Ne2 Rb1+ Ka4 Nf5 Qb4 Qc5 a1Q+ Kd6 e5 Re8 e4 g8B e3 g7 Rb3 Bf7 Qb5 g8B Qb6 Ng7 Nf4 Bh5 Bg4 c8R Nc7 Ne2 Ng6 Rg1 h1N Ng3 e2 Bh6 Rc3 Rb4+ Ka3 Bb3 e1Q Qg2 d2 Bd3 Qe3 Bb1 Ne5 Qe2 Nf2 Qeb5 Qb2 Qa8+ Qa6 b8N Bd1 Qab7 Nd5 Rg2 Nb6 Kc7 Qc2 Rg1 Qa4 Na6 Qg6 Kb8 Rc2 c7 Qe1 Rcd8 Rh8 c8Q Rf8 Rd3 Rf6 Rc3 Qe3 Nf1 Qee4 Rg4 Qd5 Ng3 Qe6 Qf1 Qad7 Qfb5 Qd4 Bc4+
4R3/1nRN3Q/b3N1B1/RR1b1Qp1/1Nb1bQ2/1rN1n2B/K3k3/Br3bB1 b - - 0 1 legal: proof: h4 c5 g4 e5 d4 f5 dxc5 a5 f4 g6 fxe5 a4 h5 f4 h6 Bg7 hxg7 a3 bxa3 Qc7 a4 Qd6 a5 Qd4 Bb2 Qe4 Bc1 Qf5 gxf5 Ke7 Bh3 Kd8 Bf1 Ke8 Kd2 Kf7 Kc3 b5 Kb3 d5 e4 h5 a4 h4 c4 d4 a6 b4 e6+ Kf6 c6 Ke5 e7 h3 e8R+ Be6 f6 g5 f7 h2 f8B d3 a5 Kd4 e5 f3 a7 d2 a6 Ke3 c7 f2 c8Q Nd7 Na3 Bd5 e6 Rh5 e7 Bb7 c5 Ngf6 g8Q Rh7 c6 Rb8 a8N Rh3 c7 Rh7 a7 Rh3 Qh7 Nd5 Nb6 Rh4 a8N Rh6 Bg7 Bc6 Bh3 f1B Ka2 Bfb5 Ne2 Ba6 Qf1 Nc5 Qcf5 Bcb5 c8R Nb7 Nd7 Rb6 Rc7 Bd3 Bcb2 d1B Nc3 B1e2 Nc2+ Kd2 Be5 Ne3 Q1f4 Bf1 Bd4 Rb5 Rg1 h1B Rb1 Rb6 Ba1 Bdc4+ Rb3 Bhd5 Rh1 Bfd3 Rc1 B3e4 Rc5 Bg2 Nc7 Bgf1 Ra5 Rb5 Ne6 Rb6 Nd1 Ke2 Bc5 Ng4 Bg1 Ne3 Rd8 Rb5 e8B Rb6 Bg6 Rb5 Kb1 Rb6 Rb2 b3 Re8 Rb4 Rba2 b2 Rb5 Rb3 Nb4 Bfg2 Raa5 Bf1 Rc3 Ng4 Kc2 b1B+ Kc1 Bbe4 Rc2+ Ke1 Nc3 Ne3 Nd1 Rc8 Qff7 Bcd3 Q7f5 Rc4 Rc3 Rd4 Rc7 B3c4 Nc3 Rd2 Bb2 Rc2+ Kb1 Rc1+ Ka2 Rb1 Ba1 Kd2 Na4 Ke2 Nc3+
Kn1k2r1/1BNp2R1/1B2b1N1/1r1nQ2B/1QB4Q/1Nb1bb2/1RR2R2/2n4N b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Qb6 g7 Bc8 g5 Qg6 hxg6 Nb8 Kd2 a5 Kd3 e5 Kc4 h5 b4 e4 f6 h4 c6 a4 b6 h3 Kb5 a3 c4 h2 f7+ Ke7 c5 a2 b7 e3 Kb6 e2 c7 e1N b5 Ra3 c6 Rb3 Ka7 Ra3+ Qa4 Rh4 b6 Rh6 Nd2 Nc2 Nb3 Nf6 g8N+ Kd6 g7 Nh7 g6 Nb4 Be2 Nd3 Rb1 a1B Rb2 Nb4 Be3 Ra2 Nh3 Nd5 Nf6 Ke7 g8R Ra3 g7 Ng5 Ne8 Rd6 Rf1 h1B Nf2 Na6 b8Q Bg2 b7 Rg6 Ka8 Be4 Bb6 Bf3 Nh1 Rd6 Qh4 Rg6 Rf2 Ra5 Bc4 Rb5 Be2 Ke6 Bd1 Bc5 f8N+ Ke7 Be2 Rf6 Bd1 Nh3 Ng6+ Kf7 Be2 Bg4 Bf3 Be6 Bh5 Ng1 Qa7 Rf4 b8Q Rf5 Qbb7 Nb8 Qa5 Be3 Qc3 Na6 Qe5 Ne2 Qb8 Nc1 Qb7 Nc5 Qb8 Ba6 c8B Rf4 c7 Bb7+ Ka7 Bc6 Bb7 Na6 c8R Rf6 Qbd6 Nb8 Qdb4 Rf4 Nc7 Rf6 Ra2 Bc3 Ka8 Rf3 Rfb2 Rg3 Rf2+ Nf4 Rab2 Bf3 Ne8 Rg4 Rc6 Nd5 Nc7 Bcd2 Rcc2 Bc3 Rh8 Rg1 Rh7 Rg4 Na6 Ke8 g8B Rg5 Nc7+ Kd8 Rg7 Bf7 Ne7 Nf4 Rh7 B7d5 Be6 Rg8 Rg7 Bc4 Bf5 Bcd5 Bd3 Be6 Bc4 Nd5 Ng6+
r1B2k1n/B2R1q1r/1QQ1b3/RNq4R/3B1r2/NQ3Rp1/1qq1NB2/2N4K b - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 d4 h4 d3 f4 g4 f6 Bh6 cxd3 Bg5 hxg5 Nc6 d4 Kf7 d5 Nd4 Nh3 Nf5 exf5 Kf8 Ng1 Ke8 Kf2 e5 Kg2 h5 d4 a5 b4 c5 f7+ Ke7 f8N a4 f6+ Ke8 f5 a3 g6 h4 f7+ Ke7 d6+ Kf6 b6 Kg7 b5 g3 d7 c4 d5 e4 b7 a2 b8Q c3 d6 c2 b6 e3 b7 e2 Bb2+ Qf6 d8N c1Q d7 e1Q Nfe6+ Kh6 f8R Qc2+ Ne2 Qe5 g7 Qd4 f6 Qdc3 f7 Qe3 Nd4 Qa3 Nb5 Qa6 Nc6 Rh7 d8R Qf5 Qc1+ Qf4 Na5 Ne7 g8Q Rg7 Qc6+ Be6 N1a3 Rg4 Bd4 Qec1 Rd7 Qc5 Nb3 Ng6 Nbc1 Nh8 Qbc7 Qc2 b8B Qb6 Ba7 Qbc5 Q7b6 h3+ Kg1 Qc7 Rh2 Qf4 Kh1 Qff5 Bg2 Rf4 Be4 Qf6 Bf5 Qg7 Rf2 h2 Rf3 Qg6 Re8 Qf6 f8B+ Qg7 Be7 Qf7 Bef6 Rh4 Bf2 Rf4 Rb1 a1Q B6d4 Qaa2 Ra1 Qab2 Ree7 Qbc3 Bg4 Q3b2 Qgb8 Kg6 Rd5 Kh6 Red7 Kh7 Q8b7 Kg8 Rh5 Kf8 Re7 Ba2 Bc8 Bb3 Rd7 Be6 Q7a6 Qd5 Qa4 Qdc5 Kg2 h1R Qb3 Rhh4 Ra2 Rhg4 Kh1 Rg7 Nb1 Rh7 Ra5 Qc2c3 N1a3 Qbc2 Nc7 Q3b2 Ncb5
r3k2B/Nn1n2R1/4nn1Q/1p2rBB1/p3qB2/QR1N1Q1R/3n2KR/4NQ2 b - - 0 1 legal: proof: g4 b5 e4 d5 a4 c5 a5 h5 gxh5 f5 exf5 d4 c3 c4 cxd4 c3 d5 Be6 d6 Bc4 b3 e6 bxc4 Be7 Qb3 Bg5 Qa4 Be3 Qd1 Bb6 axb6 Kf8 Qg4 Kf7 Qd1 Ke8 h4 g5 d4 a5 f4 e5 Kf2 c2 d5 g4 d7+ Kf8 b7 a4 c5 g3+ Kg2 e4 c6 e3 c7 e2 c8N Nc6 b8B Qe8 d8Q Na5 h6 Ra6 d6 Nc4 f6 Ne5 h7 Rc6 d7 Re6 h5 Ra6 h6 Ng4 f5 Re6 f7 Rc6 Na7 Rg6 Na3 Rb6 Qg5 Qe7 d8R+ Qe8 Rb1 Nf2 Rh2 Rg6 Nc4 Ng4 Nb2 Rc6 Rd7 Rf6 Nd3 Ne5 Rb3 Re6 Nf3 Nf6 Nfe1 Rg8 Rb7 Ned7 h8B Re5 h7 Qe7 Bf4 c1N Qg4 Qb4 Qf3 Qe4 Bg5 Ke7 Bc7 Ra8 Bb8 Kd8 f8R+ Ke7 Rg8 Kf7 Rg7+ Ke8 Rb6 Re6 Bbf4 Re5 Kg1 g2 Ra6 Nh5 Rh6 Nhf6 Kf2 g1N Kg2 Nh3 Rh5 Na2 Qa1 Nb4 Qa3 Na6 Rh6 Ng8 f6 Nac5 Rh4 Nb7 Rh5 Kd8 f7+ Ngf6 f8Q+ Re8 Bh6 Ng5 R5h3 Ne6 Bhg5 Nc7 Qfc5 Re5 Qg1 Ne6 Kg3 Qc6 Bg2 Ke8 Qgf1 Qe4 Bh1 Qg6 Kg2 Qe4 Rb2 Nec5 Nc2 Nf8 Kg1 Re6 Qg3 e1N Rb3 Qe5 Be4 Ng4 Bf5 Nf3+ Kg2 Ncd7 Nce1 Nd2 Qgf3 Qe4 Rg8 Nc4 Bc3 Nd2 h8Q Re7 Bg7 Ngf6 Qh6 Re6 Bh8 Re5 Rg6 Ne6 Rg7
5r2/1N1Q2KQ/1B3BQr/2N3rB/R1p5/R1NrpnQ1/n2b2R1/3BkNn1 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nc6 f6 Rb8 f7+ Kd7 axb3 Ra8 b4 Nb8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 f5 g5 b6 Ba6 h3 Bd3 f6 Bf5 gxf5 g4 Bc4 g3 Be2 Qc8 Bf1 Qa6 Nf3 Qc4 Ng1 Qg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 Ke2 Kd6 Kd3 Ke5 b4 Kf4 Kd4 h5 d6 a5 b7 g2 d7 Kg3 Ke5 Kf2 d8N c5 d4 c4 d5 h4 b5 e6 d6 a4 g5 h3 b6 a3 d7 a2 g6 h2 g7 Ne7 g8B Bg7 f8N Rh7 Bb2 Rh6 Nf3 g1N Bf7 Nh3 Nc3 Ra3 Bh5 Na6 b8Q Nf4 b7 Rb3 Qbd6 Ra3 b8Q Ne2 Rg1 h1R Nd2 Nd4 Nb7 Nc5 d8B Nb5 Nd7 Rh4 Bfe2 Rf4 Nf1 Ne4 Bb6+ Nd4 Ndc5 Nd2 Qc6 Bf8 f7 Nd5 f6 Nb4 Rg3 Be7 f8R Rb3 f7 Bg5 Beg4 Ne2 Rg8 Ng1 f8Q Ra3 Qfe8 Rf8 Qe7 Be3 Qh7 Ndf3+ Ke4 e5 Qcg6 Bc1 Qdd7 Ke1 Rg2 Ra5 Rg7 Rb5 Rf7 Ra5 Kf5 e4 Kf6 e3 Kg7 Ra3 Rf6 Rb3 Rd6 Ra3 Rd3 Rb3 Nd1 Bd2 Bf6 Ra3 Qh2 Ra5 Ra3 Rb5 Rc1 a1R Qhc7 Ra2 Ra1 Rc2 Ra4 Rc3 R1a3 Rd3 Nc3 Na2 Qh2 Ne5 Bd1 Nef3 Ne6 Re5 Nec5 Rg5 Qg3+
2NQRq1k/5b2/N1Br1Qn1/B2nr1q1/4RbNq/2nB1K2/3N1B1R/R1b4Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 b4 Kg7 d4 c5 f4 a5 g4 e5 d6 h5 d7 a4 g6 a3 f6+ Kh6 f7 Kg7 g5 h4 f5 a2 b6 h3 b5 e4 d5 h2 b7 c4 d6 e3 b6 c3 Kf3 e2 Nh3 e1B Bd3 c2 Nf2 Be7 f8R Qc7 d8Q Bd2 d7 Qd6 Re8 Qb4 Ng4 Be3 Nd2 Bf8 Re4 Na6 b8R Nc7 b7 Rh6 f6+ Kh8 f7 Bd6 f8Q Ra5 Bb2+ Re5 Bd4 Bf4 Bf2 c1N Qf5 Bf8 Qff6+ Bg7 Ra8 Nd5 b8N Qf8 Na6 Nge7 Rb8 Ne2 Qc1 Kg8 Qb1 Bh8 g7 Ng6 Qf1 Kh7 g8N Nec3 Ne7 Bg7 Qg2 Kh8 Qh3 Bb7 Nc8 Bc6 Qc7 Bb5 d8B Be8 Qcd6 Bf7 Ba5 Re7 Qd8 Re5 Rhg1 h1Q+ Rg2 Qc1 Qh1 Qe1 Rh2 Qg1 Rae1 a1Q Rbb1 Qa4 Ra1 Re6 R1e2 Rd6 Re8 Rh5 R2e4 Qc1 Qf5 Bh6 Qe6 Nge7 g6 Re5 g7+ Kh7 g8B+ Kh8 Bh7 Ng6 Bb5 Qg1 Bc6 Qd4 Nf1 Bc1 Nd2 Bf4 Nh6 Qg5 Ng4 Qa7 Qf5 Qae7 Qe6 Qef6 Qf5 Qh4 Qe6 Qg7 Qef6 Nge7 Rea4 Rg5 Qe6 Re5 Bd3 Qg5 Re4 Ng6 Qef6+
2R2B1Q/1nQ1Q1n1/KNq1R3/1r4n1/2b1NQ2/n5bN/BR1R4/kBr2rnN b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 d4 h5 g4 a5 b4 e5 f6 c5 d6 h4 d5 h3 g6 a4 g7 h2 g5 a3 d7 a2 d6 Ra6 g6 Rh5 f5 Be7 f7 Ra3 f8R Rh4 b6 Rb3 Kb5 c4 f6 c3 b7 c2 f7 Bg5 Nh3 Bd2 Qh5 Kd4 Ba3 c1N Qh8 e4 Nc3 e3 Ne4 e2 Nef2 Kc3 Rb1 a1R Rb2 e1N Bd3 Re4 Bb1 Qe7 d8Q Nh6 g8B+ Qf6 d7 Na6 b8Q Rc4 g7 Nf5 Qe7 Nc2 d8R Be6 Qbc7 Nc5 Re1 Nb7 Nh1 Bf4 Ka6 Ne2 b5 Bg3 b6 Ng1 Rd2 Rb5 Rc8 Bd5 f8N Qc6 Re5 Rcc5 Bf7 Bc4 g8N Ng7 Re6 Rf5 Nf6 Rf1 N8d7 Rc1 Ra2 Kb3 Bc5 Na3 Rab2+ Kc3 Ba2 Rf1 Bg6 Rae1 Bgb1 Rc1 N1f2 h1N Bd6 Bh4 Bc5 Ng3 Nh1 Ne4 Qf4 Na5 Bd6 Ng5 Bc5 Qd5 b7 Bg3 b8Q Qc6+ Nb6 Nb7 Qbc7 Nf7 Rh2 Ng5 Rbd2 Rc2 Rhe2 Kb2 Ne4 Ka1 Rf2 Rc3 Rb2 Rcc1 Rfd2 Rf2 Qef6 Rf3 Bf8 Rff1 Qfe7
2b4k/2QQr3/5n1b/rQ1qrR1b/n2QB1R1/4NR2/nBKRNN1B/1n5B b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 Kg7 g4 a5 d4 e5 Kd2 c5 g6 h5 b6 c4 g5 a4 b5 c3+ Kc2 a3 b7 h4 b6 e4 d6 a2 d7 h3 d5 h2 d6 e3 Na3 e2 Bb2 e1R Ne2 Ra4 Bg2 Qc7 d8Q Rh3 f6+ Kh8 f7 Kg7 f5 Ra7 d7 Re3 f6+ Kh8 g7+ Kh7 g6+ Kh6 Nc4 Ba3 f8R Qc5 f7 Bb4 Be4 Rf1 Rg1 h1B Rg4 Ra6 Qc7 Rf5 d8Q Nd7 b8B Bf3 b7 Ra5 Qd4 Qd5 Rd1 Nc5 Rd2 Nf6 g8B Kg7 Qdd7 Na4 Bh7 Re5 Bg8 Kh6 g7 Bd6 Bgh7 Re7 Bhg6 Bf4 g8N+ Kg7 Nh6 a1N+ Kb1 Nb3 Kc2 Qc6 Bd5 R3e6 Ne3 Re5 Bge4+ Bg5 Nhf5+ Kh7 Nd1 Bh6 Nf2 Qe6 Ne3+ Qf5 Rf4 Bh5 Rf3 Kg7 Rg8+ Kh7 Rg4 Kh8 Bc6 Qg5 f8R+ Qg8 Kd3 c2 Bcd5 c1N+ Kc2 Na2 Rf5 Nac5 Bh1 Na4 Bde4 Nh7 R8f6 Qe6 Rf3 Qd5 R6f5 Nf6 Qcb6 N2c3 Qbb5 Nc1 Bc7 Nb1 b8Q Na2 Q8b7 R5e6 Bh2 Re5 Qbc7
b1Q3B1/1QrnN2k/1B4N1/brr1R3/3r1nB1/BbQ1N2q/2R2q1R/K3Q2N b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 Kg7 g4 a5 d4 e5 Kd2 c5 Kc3 h5 Kb2 a4 d6 e4 f6+ Kg6 b6 e3 b5 e2 d5 e1R f5+ Kh7 d7 h4 f7 h3 b7 c4 f6 h2 b6 Nc6 b8Q Ne5 d6 Be7 f8Q Nc6 b7 Nd4 f7 Ra5 Qc7 Rae5 b8Q Nf3 Ne2 Re3 Ra2 a3+ Ka1 c3 Ng3 c2 Nd2 Nh4 Qbb7 Bf6+ Qc3 Ng6 Bh3 Rd3 Ndf1 Qb6 d8R Qa5 d7 Nf4 Re8 Qc5 d8B Re7 Ne3 Rc7 Qe1 Rd4 Re5 Be6 Qe8 Bb3 f8N+ Kg7 g6 Rh5 Rb2 a2 g5 Be7 Bf5 Nf6 Bg4 Qa3 Qec6 Nd7 Q6c5 Kg8 g7 Qa7 Qcc6 Bb4 Ng6 Kh7 g8N Ba5 N8e7 Qc5 Qc8 Qb6 Q6b7 Qe6 Rf1 h1B Rf2 Bf3 Nh1 Qb6 Qa7 Ba8 Rh2 Rc5 Qab7 Qe6 Bf3 Qh3 Bb6 Rc7 Bg4 Rc5 Rb1 Rc7 Ba3 c1R Qcc6 Rc5 Rc1 Rb5 Qcc3 Rh6 Nh8 Rhc6 Rcc2 Rcc5 g6+ Kg7 Rce2 Qf1 Kb2 Qh3 Ref2 Kh6 g7 Kh7 g8B+ Kh6 Nhg6 Kg7 Qb1 a1Q+ Kc1 Qa2 Qa1 Qe2 Kb1 Qef3 Rc2 Qf2 Qe1 Kh6 Qac3 Kg7 Ka1 Kh6 Bf7 Kh7 Bg8+
r2r1N1q/B2nK2Q/rn1Q4/RB4BN/R3NbbR/1Q1B1b2/b1NR4/1r1k4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kd4 h5 e4 f5 g4 c6 b4 h4 e6+ Kd6 e7 h3 e8R h2 b6 f4 b5 f3 e5+ Kd7 b7 f2 e6+ Kd6 g6 a4 b6 a3 g5 a2 e7 Qc7 g7 Rh3 g6 Nf6 g8N Ra7 g7 Nh7 Nf6 Re3 g8Q Bf5 Bd3 f1B Ne2 Ng5 Nbc3 Be4 Nh5 Ra6 Qh7 Bh6 Qb3 Nd7 b8Q Bf5 b7 c5+ Kc4 Ke5 d6 Ra8 Ne4 Nf7 Nd4 Qd8 Nc2 Bf4 Kb5 c4 Kc6 Nb6 d7+ Nd6 Qc7 c3 b8B Bg4 Ba7 Re1 Rg8 Rd1 e8B Qh4 d8N Nd7 Qcb6 Nc8 Ne6 Qh3 Q6b4 Ncb6 Nf8 Bfe2 Rg6 Bef3 Rd6 Qh4 Rd4 Qf6+ Kc7 Qh8 Q4a3 Rd8 Ra4 Ra8 Nb4 Kd4+ Kc6 Bg5 Kd6 Bf4+ Ke7 c2 Ra5 Nc5 Beb5 Ncd7 Rf1 h1B Ra4 Bhg2 Rh1 Bf1 Rh4 B1g2 Qbg8 B2h3 Qgg6 Be6 Qb3 Bd5 Qd6 Bhg4 Rb1 a1R Ra5 Ra2 Ra1 Rb2 R1a4 Ra2 Bf1 Ra1 d3 Rd2 Be2 Ke3 Bf1 Qc3 d4 Bc4 d5 Rb1 Qa2 Qh8 Bd3 Bb3 Qa3 Ba2 Qb3 Ra1 Bb2 c1R Bf6 Rcb1 Bg5 Be2 Nc2+ Kf3 Nc5 Kf2 Ne4+ Kf1 Ne3+ Ke1 Nc2+ Kd1 Qdg6 Ne5 d6 Bef3 d7 Bh2 d8R Ned7 Bf1 Rd5 Bfd3 Bf4 Rc8 Rd6 Rc5 Rd8 Rd5 Rc6 Qd6 Rcc8 Qdh6 Ra8 Qd6 Rc1 Ra6 Rcb1 Rb4 Rc1 Rdd4 Bb1 Bf1+ Bd2 Rd3 Ra5 Ra4 Ba2 Re3 Ra1 Bfd3 Rb1 Re2 Bf4 Rd4 Ra4 Rc4 Rb4 Ra3 Ra4 Rd2+ Kc1 Rd4 Ra6 Ra5 Bf5 Rf2 Kd1 Rda4 B5g4 Rd2+
5Q2/n3Q2B/QN3K1n/1rpb1BBq/5N2/R1kr1BN1/Q2R1rnb/Rb5R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 f6 a4 f5 h4 f7 h3 d6 e6 f6 a3 b6 a2 g6 h2 g5 Bb7 d5 Qc7 g7 Qc6 d7 Na6 d8R Ne7 g8B Rh7 d6 Nd5 d7 Rh3 g6 Ne3 g7 Ng2 Ne2 Be7 f8R Nf4 f7 Rd3 Bh7 Bg5 g8B Rd2 Qc2 Nc7 Nbc3 Nfd5 Ne4 Ne3 Bf5 Rb8 Nf4 Rd3 Bg2 Nb5 Ng3 Qf3 Bgh7 Be4 b7 Qh5 Bf3 Na7 b3 Bh6 Kf6 e5 Rfe8 Bd5 f8Q e4 Qg2 Kc3 b4 Nc4 b5 e3 b6 e2 Qf1 e1N Re3 Ne5 Qg2 Nf7 Qd6 Rc8 b8N Bf8 b7 Nh6 Qa6 Bd6 Re2 Rc6 Rd2 Rb6 Rf8 Rb5 d8Q Bc7 Nd7 Bb8 Qe2 Ng2 Qde7 Bc7 b8Q Be4 Rb1 a1R Nb6 Ra2 Ra1 Bd5 Qbe8 Rc2 Rg8 Ba2 Q8f7 Bb1 Ra8 Bd6 Qff8 Bb8 Rhd1 h1B Q2e6 Bd6 Qea2 Qh2 Ng6 Rd5 Rf2 Nf7 Qab7 Nh4 Bg2 Rd3 Bg5 Nh6 Nf1 Nc8 Bge4 Bg3 Nf4 Bg2 Ra5 Na7 Qa6 Qh3 Ba8 Bh2 Ng3 Bh1 Rff1 Rf2 Rd2 Qg4 Bd5 Qh5 Re1 Be4 Rh1 Ng2 Bb7 Bd5 Ra4 Bc4 Bf3 Bd5 Ra3+
R2bR2N/1R1Qn3/3q1rk1/rbBB2q1/5Q1B/1nQp1Bn1/qNQ3K1/N3N3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 f4 e5 Kf2 a5 b4 d5 h4 g5 b6 e4 b7 g4 f6 a4 b5 e3+ Kg2 e2 b6 e1Q h6 d4 h5 d3 f5 a3 h7 a2 c6 g3 c5 Qe6 h6 Ra3 c7 Qdd6 c6 Qdd7 Nd2 Ne7 Qc2 Qed5+ Ngf3 Qd4 Be2 Q7d6 Re1 Rb3 Nc4 Be6 c8Q Ng6 c7 Qc3 Nb2 Bc4 Qd7+ Ne7 c8B Ba6 Bg5 Qdd4 Bh4 Nc6 b8N Qd2 b7 Nd8 Nc6 Ra3 b8R Q4b4 Bb7 Rc3 Na5 Rc6 Nb3 Qd6 Ra8 Qe3 Rab1 Qg5 Na1 Ne6 Bd1 Rc5 Bd5 Bb5 Be2 Rg8 h8Q Rg6 h7 Bh6 Bd1 Bg7 Re5 Rh6 Ne1 Bf8 Nb3 a1Q B1f3 Qa2 Na1 Bg7 Qhd8 Bf8 Qa5 Bg7 Qac3 Bf8 Kg1 g2 Kf2 g1N h8N+ Kg8 f7+ Kg7 Re2+ Nd4 f6+ Kh7 Kf1 Nb3 Re4 Bg7 f8B Ne2 f7 Ng3+ Kg2 Bf6 Re5 Ba6 Re3 Ra5 Re2 Bb5 Re3 Ng8 Ree8 Bd8 Be7 Rf6 f8Q Qa6 Bc5+ Ne7 Rd1 Qd6 Rd2 Rh6 Qf4 Rf6 Re2 Bb6 Reb8 Bd8 Rb7 Kg7 Nf7 Kg6 Re4 Nef5 Re8 Ne7 Nh8+
1b3N2/RQ3pqB/2r1n2Q/5R1N/1R1b1Q1n/B4R2/nrb3kq/NN2KBB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 e4 g5 d4 a5 b4 c5 b6 c4 e6 Kd6 b7 g4 e7 c3 e8B c2 e5+ Ke7 b5 a4 h6 a3 b6 g3 d6+ Ke6 h7 Kf5 d7 Ke4 h5 g2 e6 a2 d5 Ba3 e7 Bc5 h6 Ra3 d6 Re3+ Ne2 Kf3 Rh5 g1Q Rf5+ Kg4 Qd5 Rc3 Ba3 c1B Nd4 Kg3 Nc2 Nc6 b8R Bb4 b7 Qa5 d8N Qgb6 d7 Bf4 Ne6 Qg1 d8R Bc5 Bd7 Bd4 e8N Qh2 N8g7 Nb4 Nf8 Rc6 Be6 Ne7 Nh5+ Kg4 Qc4 Kf3 Rdd5 Rg8 h8B Ng6 h7 Nh4 Be5 Qa8 h8Q Rg2 Qh6 Qa4 Rf6 Qb3 Ra5 Qb2 Bf5 Rd2 Bh7 Bf5 Bd6 Rf2 Bc5 Bd6 Bd3 Kg2 Bb6 Be4 Rf3 Bc7 Raf5 Bce5 Ra8 Bb8 Ra7 Qc3+ Nd2 Qb2 Rb1 a1N Qb5 Nb3 Na1 Nc5 Bf1+ Kh1 Qa4 Na2 Qb5 Qc3 Rb4 Ne6 Qa6 Qb2 Nb1 Bc2 Bc5 Bh8 Qc4 Qg7 Qcf4 Rg2 Bg1 Rd2 Bd3 Kg2 Ba6 Bd1 Bb5 Rb2 Bd3 Bc2 Be2 Bd6 b8Q Bc7 Qc8 Bb8 Bf1+ Kh1 Ba6 Kg2 Re3 Qg5 Rf3 Bd4 Qb7 Qg7 Bf1+
Qn5b/1Nq2r2/2N2R1r/nNRB2b1/bB1R2B1/1BQ3k1/1KpN1b2/1R1Q2n1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 Kd2 c5 Kc2 h5 g4 e5 b6 a4 g6 e4 f6 e3 g5 h4 b5 h3 b7 a3 f5 h2 b6 c4 f7 a2 g7 e2 g6 e1B f6 c3 Bd2 Nh6 g8B Be7 f8Q Qd7 f7 Nf5 g7 Bg3 Be2 Nh4 Nf3 Qb5 Na3 Nf5 Rc1 Nd7 b8N a1B b7 Ra4 Nc6 Ra7 b8Q+ Rc7 Qa8 Ba6 Qfc8 Qc4 f8R Rh4 Bf7 Ra7 g8B Nb8 Be6 Rc7 Rf6 Bb5 Be1 Rh5 Nd2 Rh6 Bg4 Bf2 Rf1 h1N Rb1 Ba6 Rb5 Bd8 Rc5 Bb5 Kc1 c2 Bgf7 Bc3 Bg8 Ba5 Kb2 Ne3 Qcb7 Qe2 Ndb1 Ba4 Rg6 Rf7 Qb3 Nf5 Qd2 Rg7 Qc1 Bac7 Bb4 Bfh4 Nd2 Nf2 Qc3 Bdg5 Rd1 Nh3 Bef7+ Kd7 d6 Qe7 d5 Bf2 Nb5 Ng1 Rf1 Qe5 Qe1 Qh2 Qe2 Bcd8 Rb1 Bdf6 Qd1 Be5 Re6 Rgh7 Rg6 Bh8 Rf6 Rg7 Be2 Nd4 Be6+ Ke8 B2g4 Rd7 Bgf7+ Kf8 Bg8+ Kg7 Bgf7 Ra7 d7 Nb3 d8N Na5 d6 Re7 d7 Qc7 Ba2 Kh7 Bfc4 Rf7 Nb7 Kg7 d8R Kh7 Rf4 Kg6 Rfd4 Kf6 Bd5 Kg6 Bab3 Kf6 Bgf3 Kg6 Rd6+ Kf5 Bde4+ Kf4 Bed5+ Kg3 Rf6 Kh3 Bg4+ Kh2 Bdf3 Kg3 Bfd5+
b1B1b1Q1/n2RqQ1N/R2BN3/6b1/BnrQBR2/5Nk1/1Npb1r2/R1n3K1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 a5 f4 c5 Kf2 e5 d4 h5 g6+ Kf6 g7 h4 b6 c4 d6 e4 d5 h3 g5+ Kf7 b7 h2 b5 c3 d7 a4 f6 Kg6 b6 Kf5 d6 a3 g6 c2 f7 a2 Nf3 Kg4 f5 Rh3 f6 Qe7 d8N Bf5 d7 Be6 Bg2 Qb4 Rf1 h1B Ba3 e3+ Kg1 e2 Qd4+ Kg3 Nc3 e1B Na4 Rh6 Nb2 Bh3 Ne6 Rh8 d8R Na6 b8Q+ Qd6 b7 Rh7 Rd7 Ne7 g8B Qc7 g7 Rh4 Bd6+ Rf4 Qd8 Nc6 b8R Nab4 Rb6 Be7 f8Q Bd2 f7 Na7 Ra6 Bg5 Qfe7 Rc8 f8N Bf5 Nh7 Bg6 Qf7 Qb7 Bh3 Rc4 Bf5 Bg2 Be4 Qc7 Ne5 Rf5 Rf4 Qb7 Nf3 Bh1 Qff6 Be8 Bf7 Qc7 g8B Bg2 Qa8 Qd8 Bg6 Qe7 Qf7 Rf6 Bgf5 Bh1 Rd1 a1N Qd8 Nb3 Rda1 Nc1 Bb7 Rg6 Bd3 Rc5 Bc8 Bf6 Nh2 Ba8 Nc7 Rh6 Qg6+ Bg5 Be4 Rh3 Bb3 Bf7 Qdg8 Rc4 Ba4 Be8 Nf3 Rh2 Ne6 Rf2 Q6f7
3rkr2/rB2N2b/1K3N1n/NR1qr1bQ/5n1B/2B3R1/pn2R2B/QQR2N2 b - - 0 1 illegal: No possible last move
2kb1r2/QQN4n/B4bQ1/1nRNrqN1/2nNnBQK/4p3/2b2B2/2R1RB2 b - - 0 1 illegal: No possible last move, all moves rejected
1b2Q1K1/8/R1BNQQ1k/nn1R1r1b/2Bp3R/3r2Nb/q1Q1NR1B/bN5r b - - 0 1 illegal: No possible last move, all moves rejected
K3bQN1/1Q1qR2B/Bb2R3/1b1R2pQ/2br2Br/1Qn1k3/1n1NN3/n1BR4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 a5 c4 g5 b4 d6 h4 a4 b6 a3 b7 a2 e6 f6 h6 Ra5 e4+ Kg6 h7 f5 h5+ Kf6 h6 f4 e5+ Kf5 b5 f3 c6 f2 c7 Ra3 c5 Nd7 Kc6 Ke4 b8R d5 e7 d4 e8N d3 e6 d2 b6 Rd3 e7 Kf4 b7 Re3 Ne2+ Ke4 Qb3 d1B Nf6+ Kf3 e8R Bc2 Re7 Qe8 Rh4 Bd3 Rhe4 Qh5 R4e6 Re4 Nd2+ Ke3 Bg2 Re5 Be4 f1B Ra8 Qg4 b8Q Qh4 Q8b7 Rd5 Ra5 Ne5+ Kb6 Qh2 Ka7 Qh3 c6 Bd7 c8B Nc4 c7 Be8 Ka8 Rd4 Rd5 Nb2 Bd7 Qf5 c8B Bg7 Rb1 a1N Bb5 Qh3 Ba6 Qg4 Rc7 Ne7 Ng8 Nf5 Rce7 Ng3 Rc6 Qh3 Bg4 Be5 Rb6 Bc7 Rbe6 Bb6 Nf6 Rf8 h8Q Rf7 Qf8 Rh7 Ng8 Rh8 Ng1 Ne2 h7 Nc3 Ne2 Bdb5 Rh6 Nd1 Nf4 Bbe2 Bd7 Ra4 Bb2 Nf2 Rd1 Nd3 Bc1 Rd4 Rg6 Qe6 Rf6 Qc6 Bg4 Nb2 Rh6 Bb5 Rhe6 Bfc4 Ne2 Qc7 Nh6 Rg8 h8Q Qd7 Qh7 Rg6 Ng8 Rh6 Qhf7 Rh1 Qh5 Rh4 Bh7+
bbBn3n/4N1Qp/3Q1Q2/3B1N1k/1QrR1n1B/1q2NnB1/1R2r3/K1Rr1N2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 d4 e5 Kd2 c5 Kc2 a5 g4 c4 b4 e4 Kb2 a4 b6 e3 g6+ Kg7 b7 e2 g5 e1N b5 Bc5 b6 Nh6 f6+ Kg8 f5 Qd6 f7+ Kg7 f8N Qf4 d6 Nc2 d5 Nd4 f6+ Kg8 g7 Kf7 g8B+ Ke8 f7+ Kd8 d7 Ke7 d8R Bh3 g6 Kf6 d6 Kg5 d7 Nb5 g7 Qe3 Ng6 Bf5 f8Q Nd6 Nc3 Ndf7 Ra2 a3+ Ka1 Be4 Bh3 Nd6 Nd5 c3 Nge7 c2 Rb2 a2 Nf3+ Kh5 Nf5 Ndf7 Nh2+ Ng4 Nf1 Qb3 Bg5 c1N Bh4 Ne2 Nde3 Nge5 Qdd6 Nbc6 b8B Nf4 b7 Nf3 Bc7 Ra5 b8Q Ra4 Qb4 Ba7 Qf6 Bb8 Q8d6 N7e5 Bd5 Re8 g8N Nf7 Qg7 Nh8 Qdf6 Re6 Nge7 Re5 Qd2 Rc4 Qb4 Re6 Bd6 Ne2 Bdg3 Nf4 Rc8 Re5 d8Q Re6 Qdd6 Nd8 Rhh2 Re5 Rc7 Re6 Rhd2 Re5 Be6 Ba8 Bd5 Ree4 Rd4 Re6 Ng2 Re2 Nge3 Qd1+ Rb1 Ndf7 Nh6 Rc5 Bc8 Qb3 Nhf5 Rc1 Rc2 Nd8 Rcd2 Rc4 Re1 Qa4 Kb2 a1R Rd1 Rac1 Rc2 Ra1 R1d2 Rd1 Rc1 Qc2+ Ka1 Qb3 Rb2
Q1QRn1K1/qQbnRR2/nnB1N3/1B1NQ3/1B3rbr/1p6/2k3qB/R6N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 c5 a4 b5 d4 g5 f4 c4 a6 g4 f6 e6 a7 g3 h6 g2 f7 c3 h5 c2 h7 Kb3 f5 b4 f6 Qe7 h6 Bb7 a5 Bc6 a6 Qd7 d6 Bb7 d5 Qc8 d7 Bg7 f8B Qc7+ d6 Bc6 d8R Bd5 Ne2 g1Q Ng3 Qcb6 d7 Qh2 Bb5 Qg2 Nc3 Bf3 Re1 Bg4 Nh1 Qa5 Kd6 e5 f7 e4 Bf4 e3 Qf3 c1N Qb7 e2 Nd5 Na2 Bh2 Nf6 Be7 Nc3 f8R Kb2 Rf7 b3 Ke5 Na4 Bb4 Rf8 h8Q Kc2 h7 Nb6 Qg8 Bh6 h8Q Be3 Kd6 Bf4+ Ke7 Bc7 Qhg7 Ne8 Qe5 Ng7 Kf6 Ne8+ Kg6 Qa3 Kh7 Qa5 Re7 Qa3 Rf1 e1N Rff7 Nd3 Kh8 Nc5 Kh7 Nc6 Qgh8 Rc8 a8Q Nb8 a7 Nba6 Qg8 Bd6 Qgh8 Rc6 Qac8 Bc7 a8B Qa5 Rf6 Rf7+ Kg8 Rh7 Rff7 Rh4 Qbb8 Rf6 Bac6 Rf4 Qa8 Bb8 Qec7 Qa2 Q7b7 Bc7 Qe5 Ng7 Rdf8 Ne8 d8N Ncd7 Ne6 Ng7 Qcb8 Nac5 Qe1 Qa7 Qe5 Na6 Rd8 Ne8 Q8c8
BRQ1q1R1/Nnr5/KQ1Q1BBR/4r2q/2QnbRp1/k3N2r/3B1r2/4N1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 g5 Kc3 f5 Kc4 c5 e4 a5 h4 g4 b4 f4 b6 a4 Kb5 f3 e6 Kd6 b7 c4 e7 c3 e8B a3 e5+ Ke7 d6+ Ke6 h6 Kd5 h7 f2 e6 a2 e7 c2 d7 Bg7 h5 Nc6 b8Q Ra4 h6 Qc7 d8N Bf6 Na3 Kd6 d5 Bc3 Qe2 Nf6 Nf3 Be1 Qc4 Nd7 Bg6 Ra8 e8R Rf8 h8Q Ra6 h7 Rf5 Qb6 Nf8 Rh6 Qe7 Bg2 f1R Bd2 c1R Nc2 Re5 Ne3 Bf2 Ne1 Ne6 Rg8 Bg1 Qf6 Rf4 h8B Ra3 Qf5 Bd7 Bf6 Qe8 Bh1 Rb3 Ka6 Rf2 b5 Nd4 Rb1 Rbc3 Rb4 a1Q+ Ra4 Rb3 Qfd3 Bf5 Bf3 Kd7 d6 Na5 Ba8 Nb7 Nc6 Be4 Na7 Qa3 Qdc3 Qc5 Q3b4 Qd5 Qa3 Ke6 d7+ Nd6 d8Q Nc2 Qcc6 Qd3 Qbc7 Bd5 N3g2 Qh3 b6 Qh5 b7 Rh3 Rf4 Be4 b8R Nd4 Qcc3 Nb7 Qdc8+ Kd5 Qcb4 Rc2 Qcb6 Rc7 Q4d6+ Kc4 Qa1 Qg5 Qaa5 Qh5 Qbc6+ Kb3 Ne3 Kb2 Qab6+ Ka2 Qdd7 Ka3 Qc4 Bh1 Qdd5 Be4 Qdd6+
QN3nR1/1KRBr3/Nbr1k3/2R1Bp1R/4b1N1/1r4q1/4QQ2/1nQrBBq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 Ke4 a5 h4 g5 b4 c4 d4 c3 e6 g4 b6 f6 h6 g3 d6+ Ke8 Kd5 a4 e4 g2 e5 a3 h5 a2 b7 f5 b5 c2 d7+ Ke7 b6 Ra3 h7 Ra4 h6 Na6 Kc6 Nf6 b8Q Rg8 h8B Rg3 d5 Rga3 b7 Rf4 h7 Nc7 Nf3 g1R Nh2 Rf2 Qa8 Rgg3 b8N Nh5 Nc3 Na6 Ng4 Nc7 Nb5 Rgf3 Bd2 Ra5 Qc1 Nf6 Rh5 Rh2 Be1 Na6 Nc7 Nc5 Nca6 Nfe4 Bg7 Rh1 h8R Re3 Rg8 Rb5 Bh8 Qa5 d8R Qa3 Bg7 Rbb3 Rd7+ Ke8 e7 Kf7 d6 Nc3 e8B+ Ke6 Qa7 Nb1 Rc7 Nd7 Qb6 Re2 Qf2 Be7 Bh8 Nf8 d7 Bc5 d8Q Bb6 Bf6 Bd7+ Kb7 Bb5 Rc5 Bd3 Bg7 Be4+ Qd5+ Ke7 e6 Ree3 Be5 Re2 Qh6 c1R Qc6 Rd1 Qc1 Rd6 Qd5 Rc6 Qdd2 Ree3 Qde2 Rg1 Bd4 Kd6 e7 Ke6 Be5 Rh1 Rd5 Qd6 Rc5 Rg1 B5c3 Qg3 Be5 Na3 Rb1 a1Q Rb2 Rh1 Rd2 Nb1 Rd7 Red3 Rc7 Rd1 Bg6 Rd7 e8Q+ Re7 Qd8 Qd4 Be8 Qde3 Nd7 Qg1 Qa8 Qeg3 Ndb8 Rd7 Rhg5 Rhh7 Rh5 Rhe7 Rc2 Rd5 Rc5 Rd1 Bd7+
r2B1NKR/1NQ4N/4B3/rr1pBN2/1R2bQk1/RQb3q1/Qqnn1r2/3R4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 c4 g5 f4 a5 b4 a4 h4 a3 b6 a2 h6 e6 c6 g4 h7 g3 h5 g2 c7 Ne7 b5 Bg7 c5 Rf8 h8B Ra3 c6 Ng6 h6 Rc3 b7 Nh4 b6 Nd7 b8R Nc5 b7 Qd7 h7 Rh3 Qb3 Qf7 Na3 Qg6 Nc4 Qh5 Nd6 Qg6 Ne2 g1R Ng3 Bd7 c8Q Rd8 c7 Rh2 Bh3 Rgg2 Rd1 Ke7+ f6+ Kf8 Ke5 Na6 f5 Rb2 Bh6 Nb4 Bg5 Nc2 Bg4 Be8 Qd7 Rg2 c8Q Rf2 Qdc7 Qh6 Q8d7 Bg6 Qda4 Qh5 Bh3 Qf3 Qf4 Qg2 Qba4 Rb5 Bg4 Bh6 f7 Nf3+ Kf6 e5 Ke6 e4 Be5 Rc8 Bd8 Bg7 Qa3 Bf6 h8R+ Kg7 Qb3 e3 Qfa4 Bh7 f8N+ Kh6 Kf7 Bg7 f6 Kg5 Be6 e2 Ngf5 e1Q Qa6 Bg6+ Kg8 Kg4 f7 Nd2 Nh7 Qg3 f8N Qe2 Rac1 a1R Qaa2 Bf6 Ra8 Rb8 Ra3 Ra8 b8Q Raa5 Nb7 Ra8 Bd6 Bc3 Bf4 Qe5 Rb1 Qd4 Be5 Qb4 Ra6 Qa3 Ra7 Qb2 Ra3 Bh5 Qb6 Rf3 Qd4+ Rf4 Ra5 Qa3 Qbb4 Qb3 Qc7 Kf3+ Ng7 Rf5 Qaa3 Bg6 Qb2 Ra4 Qa2 Qa3 Rb3 Qb2 Qbc4 Rf6 Rb4 Bd3 Qh4 Be4 Qcb3 Rf5 Qh6 Kg4 Ra7 Ra6 Qe3 Rd6 Ra3 Rda6 Bf7 Rf3 Nf5 Raa5 Be6 Rf2 Qf4+
2n1NQ2/3bB1R1/p4B2/2N1Br1Q/r2QKRQn/Rq1N2r1/4B1R1/brq2k2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 h4 Kc5 b4+ Kb6 d4 c5 f4 e5 f6 g5 f7 c4 f5 e4 d6 a6 f6 c3 d5 g4 d7 c2 h6 g3 h7 g2 d6 Qc7 d8R Qc4 h5 Bf5 d7 Bg6 h6 Qe6 Nh3 g1R Be2 Bh5 Bf3 Qe7 Nd2 Rf1 Nc4+ Ka7 b6+ Kb7 b5 Ra7 Bb2 c1R Nf4 Bg7 f8R Bg6 f7 Qf6 Rh2 Rc3+ Nd3 Bf5 Ra3 Ne7 Rg2 Qe6 Kf4 Rg8 h8Q Nbc6 h7 e3 Ba1 Rc2 Bf6 e2 Ra8 e1Q d8B Nc8 Bde7 Rc3 Qe2 Qd5 Qe6 Bh3 Qg4 Ne5 Kf5 Qa1 Kf4 Rb1 Ke3 Nd6 Rae8 Nc8 Nd6+ Ka8 Rd8 Rc4 Ne8 Ng6 Rd7 Ra4 b7+ Kb8 Rc7 Qb3 Rd7 Ra8 Rc7 Ka7 b8N+ Kb6 Nd7+ Ka5 b6 Kb5 b7 Nh4 b8B Qac3 Nc5 Qc1+ Rd2 Ra7 Rd7 Rb7 Bbe5 Rb6 Rc7 Rd6 Rd7 Rdd4 Rc7 Rf4 Ra7 Rf5 Rd7 Ra5 Ke4 Kc4 Rg2 Ra4 Rb7 Bh6 Rd7 Be3 Qhg7 Bd4 h8Q Ba1 Q7g5 Rg6 Q5h5 Rg7 Rg8 Rgg5 f8Q Rg6 Rd4+ Kc3 Be2 Kd2 Rg7 Rgg5 Nf2+ Ke1 Bf3 Kf1 Nfd3 Nb6 Qhg8 Nc8 Qd5 Rg6 Rc4 Rgg5 Qd4 Rg6 Qf4 Rg3 Qfg4 Na7 Rb4 Nc8 Qc3 Ra5 Qgg6 Qcc2 Ke3 Ra4 Rf4 Rfg5 Qd4 Qc1+ Ke4 Bd7 Qg4 Rh5 Qh7 Rg5 Qhh5 Rf5 Be2+
1Qr1BbR1/qbk2r2/n4B2/1n2K3/R7/RpN1p2Q/1r1Nb3/B1BNRQN1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 e5 Ke4 c5 f4 b5 g4 h5 a4 h4 d4 c4 a6 h3 a5 h2 a7 c3 a6 c2 g6 b4 d6 b3 g7 Rh6 g5 Rg6 f6 Qc7 d5 Rh6 g6 Qb6 f7 Rh8 f5 Qc7 f6 Qb7 Qd3 Rh3 Nd2 Rh6 Qh3+ Kd8 d7 Rh7 Ra4 Ba3 f8R+ Kc7 d8B+ Kd6 f7 Bc5 Bb5 Nh6 g8N Be6 g7 Be3 Bf6 Nc6 Ne7 Ng4 g8N Qb8 Nf5+ Kc7 Nge7 Bc5 Rg8 Nd4 f8Q Ne3 Be8 Rf7 Bg7 Nb5 d6+ Kd8 d7 Bc4 Bh8 Nd5 Ne3 Nb4 N7d5 Be2 Nc3 Kc7 Ned1 Qb6 Bf6 Rc8 a8Q Qa7 Kf5 e4 Ke5 e3 Bg7 Qb7 a7 Na6 Bh8 Rg7 Qff1 Bf8 Bh5 Rf7 d8B+ Kc6 Bdf6 Kc7 Bf3 Qb6 Bc6 Qa5 Be8 Qb6 Bb2 c1R Bhg7 Rc2 Bc1 Na3 Qd5 Ra2 a8R Nb5 Qdg2 Rb2 Ra3 Nb8 R8a4 Qa7 Qa8 Na6 Ngf3 Nd6 Kd5 Nb8 Bh4 Be7 Qfg2 Bb5 Ncb1 Be2 Re1 h1B Qf1 Rc2 Ba1 Bf8 Ke5 Nb5 Ng1 Bb7 Bf6 Na6 Nbc3 Rb2 Qb8+
Rr4n1/1Q1K2NR/r1pb2Q1/4B2R/pn3qNN/1BRQ1Q2/5Bbk/2nB2b1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 a5 d4 e5 g4 h5 b4 a4 f4 h4 f6 c6 f5 h3 f7 h2 f6 Bb7 Kf5 e4 b6 e3 g6 e2 g5 e1B g7 Qe7 b5 Qd8 g6 Bf2 Nf3 Bh4 Qd3 Ba6 b7 Bg3 b6 Qc7 Na3 Rh6 Nh4 Rh8 Be3 Rh6 Nc4+ Kd7 d6 Bf2 d5 Rh7 Ne5+ Kd8 Ke6 Rh6 d7 Rh5 Ra3 Rh7 Be2 Rh5 Rc3 Bb5 Bd1 Rh6 Ng4 Bb4 f8N Ba3 f7 Be1 Bf2 Na6 b8B Qf4 b7 Qf3 Be5 Bd6 b8R+ Kc7 d8R Ra7 Ra8 Rh8 Rdb8 Bc4 Rb5 Qf4 Rc5 Nb4 Ra5 Ne7 g8Q Ra6 g7 Bd2 Qgh7 Ng8 Qdg6 Bf1 Rb5 Be3 Rbc5 Kb6 Kd7 Bg2 Ne6 Bd4 f8Q Kb7 Re1 h1N Ree3 Kb6 Rh3 Ng3 Qff7 Ne2 Qhh5 Nh6 g8B Nc1 Ng7 Kb7 Qe7 Kb6 Be6 Rb8 Qhf5 Ng8 Rh2 Bc7 d6 Kb7 Beb3 Kb6 Bg3 Bg1 Bf2 Kb7 Qd3 Kb6 Qf3 Kb7 Ke6 Kb6 d7 Bd6 Bf6 Kc7 Rh5 Qg5 Be5 Qf4 Re3 Kb6 d8Q+ Kc5 Bbc2 Kc4 Qb7 Kc5 Kd7 Kc4 Re4+ Kd5 Re3+ Qe4 Rh7 Bc5 Rc3 Be7 Nhf5 Bf8 Qdg5 Bd6 Qg3 Qc4 Bb3 Ke4 R2h5 Qd4 Q5f6 Qe3 Qh3 Qg3 Bed4 Kf4 Qf8 Qh2 Qd3 Qg3 Bf6 Qe3 Nh4 Qe5 Be3+ Kg3 Qff7 Kh3 Bf2+ Qe3 Be5 Qg3 Nh6 Kh2 Qff3 Qf4 Ng4+
3k1BR1/5Q2/QRBBB3/1r1nR3/2b1N3/N3np1K/N1pR2Nb/nq2Qrq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg3 f5 h4 c5 d4 a5 b4 c4 e4 g4 b6 c3 b7 c2 h6 a4 d6 a3 d5 a2 h5 Ra5 e6 Qb6 e7 Rb5 e5 Qc5 h7 Qb6 d7+ Kf7 d8N+ Ke8 h6 Bg7 d6 Na6 b8B Qd4 Ne2 Kd7 e8N Rb6 b5 Bf6 Na3 Qb2 Rh2 Be7 Nc3 Qb4 Bh3 Bf6 Qe1 Bg5 Ne6 Be7 Rd2 Bg5 Nf4 Qb2 e6+ Kd8 e7+ Kd7 Ng2 Bb7 Nf6+ Kc8 e8B Bd5 d7+ Kd8 Bd6 Qb4 Nfe4 Rb8 b6 Ra8 b7 f4+ Kh2 Rc8 b8R f3 Rb6 Nf6 Rb1 a1N Na2 Rg8 h8R Nc7 h7 Rb8 Rb2 Rg7 Rg8 Bc4 h8Q Nfd5 Qh5 Ne3 Qf7 Ncd5 Rb1 Rb7 Bb2 Rg6 Bg7 Qb5 Rbd1 Qb1 Bgf8 Rg7 Kg3 Bf4+ Kh4 g3 Be6 Rg5 Kh3 Ra7 Re2 Ra5 Rdd2 Rb5 Nc5 Ng4 Re5 Nge3 Nh4 g2 Ne4 g1Q Ng2 Rg7 Qf6+ Ne7 Qfh4 Bh2 Bg6 Qh1 Qf6 Rb2 Nh4 Ba6 Bc5 Kc7 Be8 Rg1 Ng2 Rf1 Qf7 Be2 Rbd6 Qg1 d8Q+ Kb7 Qa8+ Kc7 Rb6 Rb5 B8d7 N7d5 Qa6 Bc4 Bcd6+ Kd8 Bc6
RK2N2q/2QB1bN1/1pBN4/5Qp1/R1Rq4/2b2nk1/BB3Q1N/rnQ2nr1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 c5 h4 g6 d4 e6 a4 b6 h6 c4 a6 c3 a7 c2 h7 Nh6 d6 Bd7 h5 Bc6 a5 Ng4 d7 Ne3 a6 Qe7 d8N Qd7 h6 Qe7 d5 Bg7 d6 Be8 d7 Nc4 Nc3 Rg8 h8N Qa3 h7 Qb2 Nb5 Qa2 Rh4 Rf8 Nhf7 Qa4 h8R Qa5 Bb2+ Qc3 Qc1 Na5 Nbd6 Nc4 Bh3 Nc6 Ra4 Nd4 Nf3 Qe1 Nh2 Rb8 a8B Ne3 a7 Rc8 Bd5 Qa5 a8B Qc3 Ba2 Rg8 Bc6 e5+ Ke4 g5 f4 Ne2 Ne6 Nf1 Kd5 e4 Rc4 Rc7 d8Q+ Re7 Bg4 e3 Qc7 Rf8 Rg8 Bh8 Ng7 Re4 Nd8 Bf7+ Nde6 Ra8 Bh3 Ra4 Ra8 Ra3 Bd7 Qd4+ Kc6 Ra7 Bg2 Nc3 Ra4 Ra6 Kb7 e2 Kb8 e1N Rg4 Re2 Bgc6 Nb1 Rh4 Nf3 Nge8+ Ke7 N6g7 Rg2 Rg4 Rg1 f6+ Kf8 Qe1 c1Q f5 Qcc3 Qc1 Kg8 Rc4 Kh7 Re4 Kh6 Rf4 Bg8 f7 Ra7 f8Q Bf7 f6 Ra3 Bb3 Ra1 Ba2 Kg6 Rf5 Kh6 Rfa5 Kg6 Raa4 Kh6 Ne6+ Kh5 N6g7+ Kh4 Ne6 Kg3 N6g7 Bd5 f7 Be6 Qg8 Bd5 f8Q Bf7 Qh7 Qcd2 Ng4 Qh2 Qf5 Qh7 Ne6 Be5 Nh2 Qh8 N6g7 Bf4 Qe7 Bd2 Qe2 Bc3 Qf2+
KNb2B2/pn3q2/1QNRB3/rN2nRBr/2r1p3/1k2q3/1b1QQ2Q/1RN1R3 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 h4 Kb4 d4 g5 f4 c5 h6 e5 h5 g4 h7 g3 h6 c4 d6 g2 Kd5 e4 b6 c3 d7 c2 f6 Nc6 f5 Ba6 b7 Bb5 b8N Bc5 f7 Qe7 f8B Bb6 d8N Ne5 f6 Bc7 f7 Nd3 Ndc6+ Kb3 Na3 Ba5 Qe2 Bc3 Bg5 c1R Rb1 Ba6 Nb5 Ka2 b4+ Nb2 Qd2 Kb3 Ne2 g1Q Bh3 Qf6 Be6 Rd1 Nc1+ Ka4 Qe2 Qg2 Re1 Qg7 Kc5 Qg3 d5 Rd2 d6 Rd3 d7 Be5 d8Q Rb3 Qdd2 Bc8 Kd5 Nf6+ Kc5 Rg8 h8R Ng4 h7 Qe3+ Kd5 Bc3 Kd6 Nd3 Kc7 Bd7 Kb7 Bb2 Qf2 Qg6 Qfe2 Rg7 Rg8 Ra3 h8Q Nge5 Qhh2 Rh7 Rh8 Rh5 Rh6 Qg7 Rf6 Ra2 Rf5 Nf3 Rd5 Nfe5 Rd6 Ra1 Na3 Qh7 b5 Qf5 b6 Nc5+ Kc7 Qff3 b7 Bc8 Nb5 Ra2 Bfe7 Qf6 f8R Qg6 Rf5 Qf7 Na6 Ra1 b8Q Ra3 Qb6 Nb7 Bh6 Rb8 Bf8 Rc3 Qef2 Rc4 Qfe2 Bd7 Bg5 Re8 Bf6 Bc8+ Kb8 Rd8 Bg5 Re8 Na2 Kb3 Ka8 Re7 Nab8 Rc7 Nd8 Rc5 Ndc6 Ka4 Na3 Ra5 Nb5 Kb3 Nc1+
n1N1RQ1r/1kQ1pR2/1q3p1p/1Q2B3/1nB4R/QK1N2Br/1b1N2b1/1N1r2R1 b - - 0 1 illegal: No proof kernel
8/2BBp2n/3nqBrR/2RN2N1/2RQ1r2/2N1bR1B/bR2q2R/K1k1rqN1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 f4 c5 b4 h5 d4 a5 Kd2 h4 Kc3 a4 Kb2 c4 b6 h3 b7 h2 d6 Ra5 b5 Na6 b8B Nh6 b6 Qc7 b7 Re5 f6 Kg6 f7 Qc5 f5+ Kh7 g6+ Kg7 d5 Kf6 g7 Re4 g8B Ke5 d7+ Nc7 d8R Rh7 f6 Qd4+ Nc3 Qc5 g5 Qc6 d6 Na8 g6 Rg7 d7+ Nc7 Ra2 a3+ Ka1 Ng4 Bb2 Kf4 Bh3 Ke3 Qd6 Nb5 Bc7 Rd4 b8R Kd2 Qe5 Bb7 Rdc8 Qe6 d8N Rf4 Qd4+ Kc2 Bh7 Bd5 Bg8 Qe2 Ne6 Nd6 Ng5 Be6 Bh7 Rg8 Rb3 Bh6 f8R Bd5 f7 Nf6 Rb5 Rg7 Bg8 Nh7 Rc5 Be6 Rfe8 Bd5 f8R Be6 Nb1 c3 Rf6 Bc4 Bge6 Rg8 g7 Bb3 Qe3 Kd1 Qf2 c2 Ref8 c1Q Bd7 Qcc4 Nc3+ Kc2 Qd4 Qce6 N1f3 Bd5 Rb1 h1Q Ng1 Qhg2 Rg6 Qgf1 Rff6 Rf8 g8N Rg4 Rf3 Rff4 Nf6 Bb3 Nfd5 Rg2 Rf6 Rg3 Nf7 Rg6 Ng5 Bc4 Na4 Q2e5 Rb8 Nb7 Ne4 Nd6 Qe3 Rgg4 Rb4 Bg7 Rh6 Rg6 Ng5 Bf6 Qe4+ Kd2 Rc1 Bb3 Qc4 Qe4 Rb7 Bd4 Rbb5 Qee1 Kb1 Be3 Qe4 Bd1 R1c4 Bb3+ Bc1+ Kd1 Rh2 a2+ Kb2 a1R Bd2 Qf7 Bc3 Ba2 Bf6 Qe6 Qd4+ Qd2+ Ka3 Rb1 Nac3+ Kc2 Rb7 Re1 Rb6 Kc1 Rb7 Bb1 Rb2 Qde2 Kb3 Bc2+ Ka2 Bb3+ Ka1 Ba2 Ba5 Nc8 Bd8 Nd6 Bc7
RN2n1Br/1B1B3p/rb1k3r/6NN/2pR1Nb1/4Bb2/R1Nq4/NQn3KR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 g4 a5 d4 c5 b4 f5 e4 c4 e6+ Kc7 g6 f4 g5 a4 b6+ Kd6 e5+ Ke7 g7 f3 d6+ Ke8 e7 Kd7 e8R a3 b5 a2 g6 Qc7 d5 Ra7 b7 Nc6 b6 Ra5 Bg2 Na7 Nh3 Qd8 Na3 Ra4 Ng5 Be7 Kg1 Ra6 Nc2 Nc6 Be3 Ra5 Qb1 Nh6 g8N Nf7 g7 Rc5 b8R Nd4 b7 Bf6 Ra8 Nf5 Rf8 Qe8 b8N+ Kd8 e6 Be5 d7 Kc7 d8N Ng3 e7 Bg4 Nb7 Rc6 Nf6 Qd8 e8B Nd6 g8B Bd4 Bd7 Ne8 Nc5 Kd6 Nb3 Bb6 Nh5 f2+ Kh2 f1B Kg1 Bge2 Rf4 Bg4 Rd4 Bfe2 Bf3 Ke7 Bg2 Rh6 Be4 Bef3 d6+ Kf8 Bb7 Ne2+ Kf2 Nc1 Kg1 Bd1 Bf5 Bde2 d7 Ke7 Bfe6 Bef3 Bf5 Qc8 d8N Qd7 Nde6 Qd5 Nef4 Kd6 Bd7 Bd1 Qb2 Bdf3 Rb1 a1R Qa2 Ba7 Rb2 Bb6 Qb1 Ra7 Ra2 Ra6 Re4 Qa5 Nba1 Qd2 Rd4+
2B2Q2/RbB1bn2/3B3N/p1N1N2q/1r1N1prR/4N3/K1pN1q1n/B1k2R1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 g5 Kc3 f5 Kb3 a5 h4 c5 e4 c4+ Ka2 c3 b4 f4 e6 Kd6 b6 c2 e5+ Ke7 b5 g4 h6 g3 h7 g2 d6+ Ke8 h5 Qf6 d5 Na6 h6 Bd7 e7 Kf7 e8N Kg6 e6 Kf5 b7 Ke4 b8N Qd8 b6 Qf6 e7 Nc5 b7 Ne6 Ne2 g1Q Nc7 Qf7 e8R Qfg6 Nba6 Qa7 b8N Bg7 Nc5+ Kf3 Nec3+ Kf2 Bh3 Bd4 N7b5 Qd3 Ba3 Ke3 Nc6 Qf1 Re7 Qa6 Ne5 Rb8 Nd2 Be8 d7 Qc8 d8B Qd3 d6 Qg6 d7 Qh5 Bc7 Bf7 d8N Nf6 Rb1 Be8 Ndf7 Rg8 h8B Nd8 h7 Ng4 Nh6 Nf7 Bg7 Qd8 h8R Nh2 Bc8 Bc6 Qg4 Rb6 Qf5 Bb7 Rbf1 Qd7 Bf6 Rg4 Nd1+ Ke2 Bg7 Qd8 Rd7 Qdh4 Qf6 Qf2 Qd8 Bc3 Qf8 Bb4 Bf6 Nd6 Rg7 Nf7 Rhh7 Rg1 Rg4 Rg3 Rh4 Rg4 Ncd7 Nd6 Ndc4 Bc5 Nef7 Ba8 Bcd8 Bf3 Ba1 Rb8 Nfe5 Ba8 Re7 Nf7 Bb4 Bd6 Ba3 Bc7 Bd6 Rb6 Nc5 Rb7 Nba3 Rb4 Nb5 Bb6 Ra7 Bb7 Nce3 Kd2 N3c4+ Kc1 Nd4 Bc7 Nd2 Bb6 Bg5 Bd8 Bge7 Qg2 Bc7 Qf2 Bed6 Be7 Ne3+
1kNbRR1K/1N1n1qQ1/B2R3n/1BN1p2p/Np1rR2B/2R1r3/b2p4/B5R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 b5 Ke3 d5 Kf4 Kd7 Ke5 Kc7 a4 h5 c4 e6 f4 d4 g4 d3 a6 b4 g6 d2 a5 Ra7 c6 Ne7 Kf6 e5 g5 Qd5 c5 Qd8 g7 Be6 g8B Qd5 g6 Qc4 g7 Qe4 Nf3 Qc4 Rh3 Bf7 Bb2 Qd5 Ng5 Qb3 Nc3 Rh7 Ne6+ Kc8 c7 Rb7 a7 Rb5 a8R Qc4 a6 Qd4 a7 Qd6 Qg4 Bg6 Re1 Rh8 Ba1 Bf7 Re4 Ra5 Ba6+ Kd7 c6+ Ke8 Rg3 Qd4 Nc5 Ra2 N3a4 Bb3 Bgc4 Bd1 g8R Rb2 Bcb5 Rb1 Rc3 Nc8 Kg6 Nb6 f6 Qg1 f5 Qe1 f7+ Ke7 f6+ Kd6 Qg3 Be7 Kg7 Qe3 f8B Nc8 f7 Qf2 Qg1 Rh6 Qg4 Re6 Kh8 Bb3 Bg7 Rc1 f8R Re1 Bf6 Re3 Bh4 Ba2 Qg6 Qf5 Qf6 Qf1 Rg1 Qf2 Qg7 Qf7 Be1 Bg5 Bh4 Ne7 Rd8+ Nd7 Rac8 Nf5 a8R Nh6 Rf8 Nb6 Rce8 Re7 Rad8+ Rd7 c8N+ Kc7 Nd6 Bf6 Ndb7 Rd4 Rd5 Bd8 Rd6 Kb8 c7+ Ka7 c8N+ Kb8 Ree6 Nd7 Ree8
rn3r2/N2k1Q2/3Bb3/3rR1Bb/2K1p2n/BpN1B2B/1R1B1BB1/4BBn1 b - - 0 1 illegal: No proof kernel
1R5b/qk3K1b/RnrR2Q1/BqrnB1N1/2R2R2/5B2/1BNqq1rR/1RR5 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Kc4 Kc7 d4 a5 f4 g5 b4 e5 h4 a4 h6 a3 h5 a2 h7 e4 b6+ Kb7 d6 g4 Kd5 e3 d7 c4 Ke6 g3 d5 c3 b5 c2 f6 e2 f5 e1Q+ Be2 g2 h6 Qg3 f7 Qd3 f6 Ba3 f8R Ra7 d6 Nc6 f7 Kb8 b7 Bc5 Nh3 g1Q Bb2 c1R Na3 Qgg5 Qg1 Qh5 Qg6 Na5 Nc2 Qb6 Ng5 Bf2 Bf3 Rb1 Rc1 Nf6 Rg8 Ne8 f8R Nc4 Kf7 Qd2 d8B Nf6 d7 Ra6 Rg7 Qc6 Ba5 Nb6 d8R Nfd5 Rd6 Rg8 h8R Bd4 h7 Ka7 b8R Bf5 Ra8+ Kb7 Rfc8 Qc5 Rcc6 Qcb4 Rc4 Rc8 Rf8 Rc5 h8B Qe2 Rgg8 Qbd2 Be5 Be4 Rh8 Bd3 Ba3 Rb2 Rab1 a1Q Rh7 Ra2 Bb2 Bf5 Bg3 Bh8 Bge5 Na4 Rh6 Rac6 Ra6 Nab6 Rh7 Qh1 Rh2 Qhf1 Ke8 Bd3 Rff4 Be4 Kf7 Bf5 Qg7 Bh7 Qg6 Ra3 Bg4 Rg3 Bh5 Rg2 Bf3 Nc8 b6 Qa4 Ba1 Qb5 Bad4 Qg1 Bb2 Kb8 Rcd4 Rc4 b7 Qge3 Rd3 Qa7 Ra3 Ncb6 Rc3 Kc7 b8R R4c5 Rbd8 Kb7 Rcc4 Qe4 Rg8 Qee2 Rb8+
B3KBn1/N2N2QB/N6k/1qB5/1BB5/NB3r2/bnR2nbr/qbb1B2R b - - 0 1 illegal: No possible last move, all moves rejected
NB2R2k/2rP1q1b/Rr4Q1/1Q2B3/B4qR1/1q2N3/Nb4K1/B1b3QB b - - 0 1 illegal: No possible last move
6Bb/4n1P1/1Br2NQR/2NQ1Q1r/1Qq1b3/2n2B2/2N1R1K1/b1kRQ1b1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 d4 Kd7 g4 Kd6 f4 e5 Kf2 c5 a6 h5 b6 h4 f6 e4 b7 c4 f7 h3 a7 c3 f5 h2 f6 e3+ Kg2 e2 g6 e1B g5 c2 g7 Qa5 g6 Nd7 b8Q+ Qc7 Nh3 Bh4 Nf4 Be7 f8Q Bb7 f7 Nb6 Nh5 Nf6 g8Q Nc4 Na3 Nb2 Qe1 Ne4 Nf6 Rh7 Ra2 Ng5 Bc4 Nh3 Be3 c1B Nc2 Nd1 Qfc8 Bf8 Qf5 Bg7 f8N Bf2 N8d7 Bb2 Nc5 Bh8 g7 Nc3 Qf7 Rh4 Q7g6 Rh5 Bb3 Bc6 Qb4 Rc8 a8B Ba1 Rb2 Bg1 Ba2 Qf7 Bc4 Bb7 Bf2 Rc6 Ba2 Kc7 d6+ Kd8 d7 Kc7 d8R Qc4 Re8 Kd6 d5 Nf4+ Kf3 Ne6 Kg2 Nf8 Re7 Qa6 Re2 Qc4 Qgg4 Ng6 Qgg5 Ne7 Qgg6 Nb5 Bb3 Kc7 d6+ Kb6 Na4+ Ka6 d7 Nc3 d8Q Rc8+ Kg3 Be4 Qdd5 Rc6 Bb6 Rd6 Qa3 Rc6 Nc5+ Kb5 Nb4 Nb1 Rbd2 Nc3 Nc2 Bd4 Rf1 h1Q Rf4 Be3 Rh4 Bg1 Qb2 Rh7 Rh6 Qh5 Ne3 Kb4 Qbb1 Ka3 Ba2 Bc2 Kg2 Bd3 Qb5 Bc2 Qa5+ Kb2 Qb4+ Qb3 Qde5 Qh4 Bb7 Rc8 Bf3 Rc6 Rh5 Qd4 Nd1+ Kc1 Ne3+ Bd1 Rh1 Qc2 Bf7 Qc4 Bg8 Qa4 Qd5 Rh4 Qeg3 Bc2 Rh2 Be4 Qe1+ Qd1 Nc2 Rf4 Rh7 Rh4 Rh6 Rh5 Rxd1+
5R2/Q2NQPB1/1Q4R1/2bKN1r1/1qRB3q/2rB1r2/2b1rb2/1kN1N2N b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 e4 f5 exf5 h4 c4 d4 g4 h3 b6 d3 b5 Nf6 b7 Nh5 gxh5 Nc6 Bxd3 Ne5 b6 Nc6 Bf1 Nb4 Nxh3 Qd6 Ng1 Nd5 cxd5 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 b8Q Ke4 f4 a5 h4 c5 d4 g5 d6 e5 d5 a4 h6 a3 f6 g4 d7 a2 b7 g3 d6 g2 f5 Qa5 d8Q Bg7 h7 Qb6 h5 Ra7 d7 Qc6 h6 Ra8 Qe7 Qd6 d8N Qd7 Ne6 Qc7 Nd4 Ra3 Nge2 g1R Be3 Bd7 Qa7 Rb3 b8N Rg4 Nf3 Ba4 Qdd6 Qa5 Rg1 Rg2 Nd7 Rg8 h8B Re8 Qee6 Bf8 h7 Qe1 Qdb6 Qh4 Bd4 Rg6 Ne1 Rf3 Bg7 Be7 h8N Bb3+ Kb5 c4 Kc6 c3 Ng2 Kd3 Ng3+ Kc2 Nh1 e4 Nf7 e3 Nd2 e2 Ne1+ Kb2 Rg5 Bc5 Rc1 a1Q Qd6 Re4 Qe7 Qa3 Nfe5 Qb4 Rg2 Bd1 Nb3 Rgg3 Rc2+ Kb1 Kd5 Rgg4 f7 Ree3 f8R Ree4 N1d3 e1B f6 Bf2 f7 Rgg3 Rd2 c2 Ne1 c1R Bd3+ Rc2 Nc1 Re2 Ba6 Rc4 Rc2 Rg6 Rc3 Bc2 Bb5 Rh6 Rg6 Rh5 Ra3 Rg5 Ra5 Qb3 Ra4 Rcc3+ Bc4 Qb2 Bd3 Qb3+ Rc4 Qb2 Qab8 Qb4 Q8a7
3rQQ1k/R6R/BQ2qN1K/5N1P/4q1qR/1N6/BqqBNrn1/2qN4 b - - 0 1 illegal: No possible last move
4k2r/bK1PnR2/2N2R1b/1pQnnB2/2Q1Q3/B3N1B1/1q1B2N1/2Rn3B b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 d5 c4 b5 cxd5 f4 a4 f3 e4 Kd7 a6 Qe8 a5 Kd8 a7 Bf5 exf5 Kd7 Nxf3 Qd8 a6 Ke8 Ng1 Nd7 Bc4 Rb8 Bd3 Rb6 Bf1 Rg6 Nf3 Rg1 Nxg1 Nb8 Ke2 g5 Kf3 c5 Ke4 e5 a8B c4 h4 g4 d4 c3 f4 c2 h6 g3 h5 g2 a7 Nc6 d6 Qf6 Kd5 e4 d7+ Ke7 d8N e3 h7 e2 h6 e1N Bd2 c1B Nh3 g1N Qg4 Qg6 f6+ Ke8 f7+ Ke7 f5 Qf6 Nc3 Nc2 Nf4 Bb2 Ng2 Bc1 Ra6 Bb2 Nd1 Ne1 Nde3 Qg6 Bd3 Bg7 f8Q+ Kd7 f6+ Kc7 f7 Bf6 Bf5 Nef3 Qc5 Ne1 f8R Qg5 Rf7+ Be7 Qe2 Bc1 Qec4 Qg6 Bb7 Qh5 a8Q Ngf3 Rg1 Bb2 Rb6 Nc2 Rc1 Qh3 Qaa4 Na1 Qac2 Ne5 Qe4 Nc2 Ra6 Qh2 Ba8 Kb8 Bb7 Na5 Raf6 Bf8 Ba8 Bg7 Kd6 Nb4 d5 Ne7 Bb7 Re8 h8B Bd4 h7 Bh6 Bg7 Rh8 Bf8 Ned3+ Kd7 Nf2 Bc6 Nd1 Ba8 Rg8 h8B Nac6 Bhg7 Rh8 Bb7 Ne5+ Kd6 Bg5 Bh6 Bh4 Bf4 Bg5 Bg3 Bh6 Ba8 Nd7 Nc6+ Kc8 Na5+ Kd8 Nc6+ Ke8 Kc7 Ne5 Kb7 Qh5 d6 Nbd5 Bg7 Bg5 Bh6 Qe2 Bb4 Qb2 Ba3 Bh4 Ng4 Bg1 Bd2 Bg5 N4e3 Bh6 Kb8 Rf8 Qb6 N1c3 Ng4 Nd3 Na7 Bg7 Qe1 Qa1 Nh4 Nc7 Bh1 Qb2 Kb7 Ne5 Qee4 Nd1 Ng2 Bh6 Nc6 Rh8 Qa7 Bd4 N4e3 Ncd5 Qb6 Bc3 Qa7 Ba5 Qad4 Bb6 Qdc5 Ba7 d7+
6Rb/1N5p/1bQ4B/4nkpK/rBr1R1BR/5p1R/RQQ2P2/qN4N1 b - - 0 1 illegal: No possible last move
6RB/3r4/3Q2Rb/1Q1Br1Q1/N4r2/R1P3Nb/QKQ2qnb/1N1qBkr1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Bc8 g5 Nc7 g7 Ne6 Ra4 Nf4 Ra1 Ng6 hxg6 Qb6 Ke2 Qc7 Ke1 Qd8 Kd2 h5 Kc3 d5 b4 Kd7 b6 Kc6 f6 a5 b7 e5 b8Q e4 f7 h4 Be3 d4+ Kb2 Kd5 c6 a4 b5 d3 b6 Kc4 c7 h3 b7 h2 Bf4 e3 Ra3 e2 Bg3 e1Q Ne2 d2 Bg2 Ra5 Rg1 Nf6 g8Q h1R g7 Ng4 g6 Re5 Bf2 Be6 c8N R8h4 Qd6 Ne3 b8Q Rf4 Be4 Qf1 Be1 Bh3 Qb7 Qf2 Nb6+ Kb5 Qbb8 Ng2 Bd5 Qd7 Qc1 d1R Qh7 Rdd4 g8R Bh6 f8B Qg4 g7 Qd7 Rf1 Rg1 Qhg6 Qg4 Qg5 Qgf3 Be7 Qd3 Bf6 Qd1 Rf8 Rd2 g8Q Rd3 Qge6 Rdd4 Rg8 Rd2 Re3 Rdd4 Bh8 a3+ Kb3 a2 Kb2 Rd2 Ra3 Rd3 Qd2 Rdd4 Qef5 Rd3 Qa8 Rdd4 Na4 a1B+ Ka2 Bb2 c3 Bc1 Qdc2 Be3 Bc6+ Kc4 Kb2 Rd3 Bf3 Ba7 Be4 Bb8 Qa5 Qd4 Rf3 Qf2 Rg3 Bc7 Qge7 Rd2 R3g6 Rd4 Qfg5 Rdd5 Qdb6 Rd7 Qed6 Bb8 Qc1 Bc7 Bd5+ Kd3 Qbb5+ Rc4 Qb3 Bg4 Qa2 Ree7 Qb5 Bh3 Qe6 Bh2 Qec6 Re5 Qd6 Qf6 Nd4 Qf2+ Nc2 Ke2 Nd4+ Kf1+ Ne2 Rd4 Qc2 Rf4 Ng3+
nQ1KQ3/qB2r1q1/2B1B1bB/1RB1N1Pr/1R2qn2/3k3R/7N/q2n1N1Q b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 Ke7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 b4 c5 f6 a5 d6 h6 d5 c4 b6 e5+ d7 c3 f7 c2 f8B a4 b5 a3 b7 a2 d6 Qb6 Ba3 c1Q Bc5 Qc3 Rh3 Qc6 b6 Ra3 Bb5 Qe1 Nf3 Qf2 Qh1 Qc7 Bc6+ Kd3 Kf5 h5 Ke6 h4 Nh2+ Qe3 Nd2 e4 Rb1 a1Q Rb5 Ne7 g8B Nd5 g7 Nf4+ Ke7 Ra7 Ndf1 Rh5 Bgd5 Na6 b8R Qb7 g8B Nc7 d8Q Bf5 d7 Bg6 Bgf7 Na8 Qe8 Qc7 b7 Qg7 Rg3 h3 Be6 Qa5 d8N Qf3 Bed5 e3 Ne6 e2 Nd4 e1Q+ Kd7 Qa4 Kd8 Qea1 Bfe6 Qe3 Ndf3 Qae4 Ng4 h2 Rh3 Qh8 Bh6 Qhg7 Qg2 h1N Ngh2 Nf2 Qh1 Qgd4 Rc8 Qh8 b8Q Re7 Rc7 Qhe5 Rcb7 Nd1 Rb4 Qg7 R7b5 Qf2 Bb7 Qfa2 Bdc6 Qa7 Ne5+
2Qrnnq1/k1n5/4Bn2/r4B2/7R/1RNb1NPN/1KB1nBQB/1R1Q1n2 b - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 cxd5 b5 exf5 b4 h4 b3 hxg5 Bg7 axb3 Bf6 b4 Be5 b5 Bg3 fxg3 Bb7 Ke2 Ba6 Ke1 Bc8 b4 Kd7 d4 a5 Kd2 e5 Kc3 c5 b6 h5 g6 c4 g5 a4 d6 Kc6 d7 Kb7 d5 e4 d6 a3 f6 a2 g7 h4 g6 e3 b5 e2 f7 e1N f8N h3 Kb2 h2 Nh7 Qh4 d8Q Qf6+ Nc3 Na6 d7 Ng2 Be3 Qf7 Nf3 Qe6 Bg1 Kb8 b7 Nc7 Bd3 Nf4 Bf5 Ra5 Nhg5 Nf6 g8B Nfe8 g7 Ng6 Rb1 a1N Bh7 Qg8 Nh3 Nf8 Qe7 Nc2 d8Q Ne3 Qe4 Ka7 b8R Bb7 Qc8 Ba6 Rb6 Nf1 Qc6 Qf7 g8B Qg7 Bf2 Qg6 Bge6 Qg8 Rg1 h1N Bc2 Ra3 Bhf5 Ra1 Rg2 Ra5 Bg1 Nf2 Bh2 Ng4 Re2 Rh6 Re4 Ngf6 Rh4 Rh7 Rb8 Rd7 Qe4 Rd8 Qee2 Bb7 Qg2 Be4 Qcd7 Bd3 b6+ Ka6 b7 Ka7 Rc8 Kb6 b8B Ka6 Ba7 Kb7 Bf2 Ka6 Na4 c3+ Kb3 Kb7 Rb8+ Ka6 Rb6+ Ka7 Qc8 Nd2+ Ka2 Nf1 Bcb3 c2 Kb2 c1N Nc3 Ne2 Bc2 Re5 Rb3+ Rc5 Rd4 Ra5 Rh4+
2n1n3/2nQkBn1/5qbB/4N2B/QPnN1bQR/3Q4/4nQ1b/R1NK2R1 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Na5 axb3 Nc6 b4 Nb8 b5 Ba6 Nf3 Bb7 Ng1 Bc8 h3 a5 Qa4 g5 Qd1 h5 Qf3 Ra6 Qd1 Rc6 Nf3 Rc4 Ng1 Rf4 h4 Rf5 gxf5 g4 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 b4 c5 d4 e5 b6 g3 g6 e4 g7 h4 d6 e3 b7 e2 d5 g2 Qa4+ Nc6 b8R h3 Ra8 h2 Bd2 c4 Bh6 c3 Na3 c2 Nc4 c1B Rb8 Bf4 Rb5 Be7 f8Q Na7 f7 Nf6 g8B Ne8 f6 Bb7 Qg7 Nc8 f8Q Ba6 Nh3 g1N f7 Bf6 Qg6 B6e5 Nf2 Qf6 Qg4+ Kd8 d7 Bc7 Qa3 a4 Nd3 Bcd6 Qb3 a3 Nc1 a2 Ne5 Bb7 Qfg7 Ke7 d8N Ba6 Ra5 Bd3 Ne6 Bg6 Qa4 Bb8 Rb1 a1N Nd4 Nb3 Bh3 Nd2 f8Q+ Kd8 d6 Nc4 d7 Bd6 Kf2 e1N Bf7 Nc2 Ra1 Ne2 Rg1 N2a3 Ke1 h1N Kd1 Bb8 Bg2 Bc7 Bf3 Nhg3 Qh7 Nb5 Qc5 Bb1 Qd3 Nh5 Qa7 Nhg7 Ra6 Ke7 d8Q+ Kf8 Re6 Bd6 Qdd7 Nbc7 Qc5 Qd8 Rg6 Qf6 Rg5 Bh2 Rh5 Bf4 Rh4 Bh2 Qd2 Bg6 Qd3 Bf4 Qgf5 Bh2 Bh5 Bf4 Qg4 Bh2 Q7f5 Ke7 Qf2 Bf4 Qcb5 Bh2 Nef3 Bdg3 Ne5 Bf4 Qbd7+
K2N2r1/4r1R1/3P1nb1/k1NBr3/2r5/BrbRQ3/R3NQ1Q/QB2b1Qr b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nc6 f6 Rb8 f7+ Kd7 axb3 Ra8 b4 Nb8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 h4 Nc6 f5 Ne5 g5 Ng4 Ra5 N4f6 gxf6 g5 Ra6 g4 Ra1 Bh6 Nc3 Qf8 Nb1 Qg7 Nc3 Qg5 hxg5 Bg7 Nb1 Bf8 Ke2 a5 Kd3 h5 Kd4 a4 Kc5 e5+ d6 h4 d4 c6 Kb6 h3 b4 a3 d5 e4 g6 h2 g7 g3 Ne2 e3 Rg1 h1R Nd2 a2 Ne4 g2 Ba3 R8h6 Nc5+ Kd8 d7 Ne7 g8B Rb8+ Ka7 Kc7 d8N Ba6 b6+ Kc8 b7+ Kc7 b5 Rc8 b8R R6h3 Ka8 Bg7 f8Q Rg3 f7 Bc3 Bh7 Ng8 Qh6 Nf6 f8Q Rg7 Qg5 Re7 Qh8 Be1 Qd3 Rh3 Rd1 a1B Qd2 Bc3 b6+ Kd6 b7 Kc7 Ra1 Kb6 Ra2 Ka5 d6 Rf3 Bg6 Re5 Qh2 Bd3 Qc1 Rc7 Qa1 Rce7 Rc8 Bb1 b8Q Rh3 Qb3 Be4 Rh1 g1R Bg2 Rf3 Rc7 Bd3 Nc1 e2 Qd1 Rh3 Bd5 Bc2 Qgd2 Rg4 Bh7 Rg8 Qe3 Bd3 Rf1 Bb1 Rf3 Rhg3 Nd7 c5 Rb7 c4 Nc5 Ne8 f6 Bg6 f7 Nf6 f8Q Bd4 Qfh6 Bd2 Rf1 e1R Qhe2 c3 Qb3 c2 Qg1 Bf7 Qgh1 Rd7 Qf2 Rf3 Bhe4 Bg6 Ne2 c1R Q6h2 Rc4 Bb1 Rh3 Qd3 Rc7 Qde4 Rb3 Qee3 Rec1 Rd1 B4c3 Qhf1 Rcg7 Rf7 Rh7 Rf8 Rhe7 Rf7 Be1 Rd4 Bed2 Rd3 Rd1 Q1g2 Rh1 Rg7 Be1 Qgg1
rBn2nNK/3n1Q1B/Q3BnN1/2Pr1R2/1R1BRbk1/4r2N/2r5/4rQ1B b - - 0 1 legal: proof: b4 c5 bxc5 e5 d4 b5 dxe5 g5 f4 g4 a4 g3 hxg3 b4 g4 Qg5 fxg5 Ba6 Qd5 Bh6 Qd1 Bb5 axb5 Bf8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 c4 h5 e4 a5 b6 d5 g6 a4 Kg5 a3 c6 d4 c7 b3 c8Q+ Nd7 c5 f4 g7 b2 Kg6 f3 b7 a2 b8B d3 g5 d2 g4 f2 Nh3 h4 Qa6+ Bd6 Na3 b1R Bb2 Ngf6 g8N Nh5 Nc4 Nb6 Bd4 Rb3 Bg2 f1N Rb1 Nf4+ Kg7 a1N g6 Bc7 g5 Rd3 Rb4 Ng3 Rf1 Nc2 Bh1 Nd5 Rf5 Nf6 Qf1 d1R Nd6 Na3 Nc8 Nd7 Nce7 Rh5 Bb2 Nf8 Bd4 Nh7 Kh8 Nc4 g7 R1d2 g6 Rc2 Nh6 Nf8 g8B+ Kd7 g7 Re3 Ng6 Nc8 Bf7 N4b6 g8B Rg5 Bb3 Nh5 Bh7 Nf6 Ng8 Bd6 Ng1 h3 e6+ Kc6 e7 Kd7 e8R h2 Nh3 Bf4 e5 Rh5 Bf3 h1R Re6 Rg1 Bh1 Rhg5 Qg2 Rge1 Qgf1 Kd8 Re7 Nbd7 e6 Rh5 Re5 Rg5 Rf7 Ke8 Re4 Rd5 e7 Ng4 Rf5 Ngf6 Ng1 Kf7 Nh3 Be5 Rc4 Rd6 Rf2 Ke6 e8Q+ Ne7 Nhf4+ Kf5 Qf7 Nc8 Rb4 Kg5 Be6 Rd5 Nh3+ Kh5 Ng5 Bd6 Rf5 Bf4 Nh3+ Kg4 Bd6 Ncb6 B6e5 Nc8 Bb8
2Bb1n1b/6rB/nN2Q3/B3KRp1/2kN1NR1/1rqRQ2N/5P1Q/1q3Nn1 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b6 h5 gxh5 a5 b3 a4 Bc4 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Ra5 Qf3 Ra6 Qd1 Ra8 Ke2 Kd7 Kd3 Kd6 Kd4 g5 h4 a2 b7 e6 f6 c6 a5 Nd7 b8N Ra7 f7 Ra8 a6 Ndf6 h6 Nh7 h5 Qd7 a7 Qb7 Bd3 Qb3 Qe2 Qd1 Nh3 Qg1 Nd7 Qg2 Rd1 Be7 f8R Rc8 a8B Bd8 Qe3 Qh1 Rf5 Qe1 Bb7 Qh1 Nb6 Nhf6 h7 Qe1 h6 Rc7 Bc8 Ke7 Ke5 c5 d6+ Kf7 d7 c4 Nd5 c3 Ba3 c2 Bb4 c1Q Ba5 Ne7 Bc2 Qa3 d4 Qac3 Rd3 Re8 Nd2 Qb1 h8Q Ng6+ Kd6 e5 h7 e4 Nf1 Ne7 Ke5 Nc6+ Kd6 Nb8 Qf8+ Kg6 h8Q Nh7 Qe7 Nf8 Ke5 Na6 Qh4 Rb7 Qe6+ Kg7 Qhf4 Re7 Qfg3 Rb3 Qh2 Qbb2 Rc1 a1B Re1 Qb1 Rc1 Bb6 d8N Rd7 Nc6 Bd8 Ng3 Bb2 Rg1 Ba1 Nf1 Rf7 Qf3 e3 Rg4 e2 Qe3 e1N Ncb4 Rc7 Ndf4 Ra7 Nbd5 Nf3+ Kd6 Ra3 Rd1 Qcb3 Rf7+ Kh8 Nb4 Bf6 d5 Ng1 Bh7 Q3b2 Rd3 Rb3 Kc6 Be7 Rf5 Kg7 d6 Rb7 Kd5 Bf6 Q6e4 Kf7 d7 Qd2 Kd6 Be5+ Kd5 Qc3 d8N+ Ke7 Nde6 Bc7 Nd2 Bd8 Nf1 Bh8 Qc4 Rd7+ Ke4 Rb7 Nd4 Kd6 Qf7 Rc7 Nbd5 Kc5 Qe6 Rg7 Ke5 Kc4 Nb6+
R1QB3R/3q1Bn1/r5bp/2N3Rr/3bq1B1/1KP4Q/1N1Bkq2/2Q2NBb b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Bc8 g5 Nc7 g7 Ne6 Ra4 Nf4 Ra1 Ng6 hxg6 Qb6 Ke2 Qc7 Ke1 Qd8 Kd2 a5 Kc3 e5 b4 Ke7 c6 d5 c7 Kd6 b6 a4 f6 a3 b7 a2 b8B e4 f7 Ke5 b5 e3 b6 Ke4 b7 d4+ Kb3 d3 c3 e2 Na3 e1Q Bh3 d2 Bg4 Ke3 Nf3 Bc5 f8N Be6+ Nc4+ Kd3 c8Q Qa5 Bc7 Rb8 Nh2 Qe5 Nf1 Qd4 Bd8 Qf2 Nd7 Ne7 g8Q Qa7 g7 Bd5 g6 Bd4 Qe6 Nf5 g8B Ng7 Bf7 Ra8 b8B Qc7 Rg1 Ra6 Ba7 Bh1 Bc5 Qe5 Qf5+ Qe4 Qff3+ Qfe3 Qh3 Q3f3 Qc2+ Ke2 Qb1 d1B+ Qc2+ Ke1 Nb2 Qf2 Rg2 Bf3 Bd2+ Ke2 Qc1 h6 Bdb6 Re8 Bd8 Re5 Ba7 Rh5 Nc5 Qb1 Bb8 Qe4 Bh2 Nf5 Bg1 Ng7 Rb1 a1Q Rg3 Qa5 Ra1 Qc7 Ra2 Nf5 g7 Qd7 g8R Ng7 Rg2 Qh7 Rh8 Qe4 Bge6 Bg4 Ra4 Bf5 Rg5 Bg6 Ra1 Rd6 Ra8 Ra6 Bg4+
4nbn1/1KbQ4/RN3PQr/R4b2/N2Bn1R1/k1Bp2Nr/B2R2Q1/1r1R4 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Qb6 g7 Bc8 g5 Qg6 hxg6 Nb8 Ke2 h5 Kf3 e5 Ke4 Ke7 Kd5 a5 c4 d6 b4 a4 f6+ Kd7 b6 h4 b5 h3 b7 h2 b6 e4 c6+ Ke8 c5 a3 c7 Kd7 c6+ Ke8 Bc4 a2 Ne2 e3 Bb2 Ra6 Bc3 Nh6 g8R Ra7 g7 Kf7 g6+ Ke8 Ng3 Bg4 c8N e2 c7 Na6 Kc6 e1N b8B d5 b7 d4 Nb6 Bf5 Rf1 Ra8 Ba7 h1R Qf3 d3 Qg2 Rd8 b8R Nf3 c8Q Ng5 Ra8 Nc7 Kb7 Rh3 Rd1 Ne4 Rd2 Rh7 Rh8 Ng8 Qe6+ Ne7 g8Q R7h6 g7 Rc8 Qgf7+ Kd8 g8R Ne8 Rg4 Ng8 Qg6 Rb8+ Ka6 Kc7 Bb3 R6h4 Rh5 Rb7 Qc8+ Kd6 Qd7+ Kc5 Rhg5 Rh6 Bd5 Be6 Rf5 Rb8 Rf1 Bf5 Rfd1 Rd8 Kb7 Rc8 Bb2 Kb4 Nc3 Rd8 Nca4 Rb8+ Ka6 Rb7 Bc3+ Ka3 Bf7 Rc7 Bc4 Rc5 Kb7 Rb5 Rab1 a1B Ba2 Bb2 Ra1 Rb3 Bb8 Bc1 Bbe5 Rb1 Ra6 Bb2 Bed4 Bc1 Rc2 Bf4 Rcd2 Bc7 Re1 Nf2 Re5 Ne4 Rea5 Rb3 Rc1 Rb1 Rcd1
K4B1n/B6n/2Np1k1N/2N2Pb1/2Q1q1B1/1q2n1Rb/1QRR4/1r1BQB1n b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 h4 f4 hxg5 f3 e4 Kf7 g6+ Ke8 g5 Ra6 g7 Rh6 g6 Rh5 Qd2 Rg5 Qd1 Rg3 fxg3 Nc6 g4 Nb8 g5 f2+ Kd2 Nh6 Bc4 f1N+ Ke1 Ne3 Bf1 Nef5 exf5 Ng8 Ke2 e5 Kd3 Ke7 Ke4 h5 Kd5 a4 b4 h4 c4 h3 b6 a3 c6 e4 c5 h2 b5 a2 c7 d6 b7 e3 c6 e2 b6 e1Q Nc3 Qf2 Qe1+ Qe2 Nf3 Nh6 g8B Qe8 g7 Qd7 g6 Rh7 Bf7 Ng4 g8B Rh6 g7 Rh5 Ne5 Rg5 Na4 Rg6 Nc5 Nf2 Rg1 h1N Rg3 Ne4 Bh6 Rf6 Bh5 Re6 Rd1 a1N Rd2 Qe8 Bg4 Nd7 b8Q Nc2 b7 Kf6 Bf7 Qa6 Bfh5 Be7 Bd1 Nf8 Bhg4 Bd7 c8R Nh7 c7 Neg5 Nc6 Qa3 g8N+ Kf7 Nb4 Bb5 Bf8 Ba6 Nh6+ Kf6 Nc6 Nf7 Qa8 Qc3 b8B Nh8 Qb7 Re4 Qb3 Rb4 Ba7 Bb7 Qa3 Rb1 Qb2 Ba6 Rb8 Bd8 c8Q Be2 Rb4 Bf3+ Re4 Bg2 Qa6 Qe7 Qc4 Bh3 Ree2 Qe3 Nd4 Qed3 Kc6 Ne3 Kb7 Qb3+ Ka8 Qe4+ Nb7 Bb6 Nc6+ Bd4 Nc5 Be5 Rd4 Bf4 Rc2 Bg5 Rdd2+
1N1rr3/q1Rq1N1N/2rQp3/1n2Q3/Q3B1P1/4NK1k/3R2rN/1BB1qR1b b - - 0 1 legal: proof: h4 b5 c4 g5 hxg5 d5 cxd5 b4 e3 b3 d6 Bg4 axb3 Qd7 b4 Qd8 b5 Bc8 d4 e6 f4 Qf6 d5 Nc6 f5 Qd8 f6 Be7 fxe7 Nd4 exd4 Kd7 Ke2 h5 e8N a5 g4 f5 b4 c5 g6 h4 g7 f4 b6 c4 b7 a4 b8Q a3 b5 a2 b6 c3 b7 c2 Nf3 h3 Nh2 Qb6 Kf3 Qb2 Bg2 Nh6 g8B Nf7 Nd2 Qb5 Nc4 Qa4 Rb1 a1Q Rf1 Qa7 Rb4 Q1a4 Bh7 Kd8 d7 Ke7 d8R Qd7 Rb6 Nd6 Ne3 Nb5 Nf6 Re8 Qe5 Kf7 b8N Bb7 Bf5 Kg7 Nh7+ Kh6 Be4 Bc6 d6 Bd5 Bd2 c1R Qa4 Rc6 Rc8 Rd8 Bc1 Re8 Rc7 Rd8 Kf2 f3 Bb1 Re8 Kg3 f2 Bge4 Rd8 Kf3 Re8 Rd1 Rd8 Rd2 f1Q+ Kg3 Qe1+ Kf3 Bb3 d5 Re8 Nhf1 h2 Ra6 h1R Nh2 Rg1 Rb6 Qe7 d7 Rg2 d6 Bd5 d8N Qg7 d7 Qe7 Nb7 Qd6 d8Q Qd7 Qe7 Rd8 Nd6 Re8 Ndf5+ Kg6 Q7d6 Rd8 Nf6 Kg5 Nh6+ Kh4 Nf7 Kh3 Nh7 Re8 Na6 Rad8 Nb8 Nc3 Rb4 Nb5 Rbb2 Kh4 Ra2 Kh3 Ra1 Qa6 Bd3 Qa5 Ba3 Qb1 Kf4 Rg3 Bg6 Bh1 Bge4 Rg2 Kf3 Qa7 Bb2 Qa2 Rf1 Qb1 Ba3 Qc1 Bb1 Qe1 Bc1
1B3K2/rQQ1QN2/b1R5/1Pn3RB/QpBpR2n/1nN5/3Q3r/q2qNk2 b - - 0 1 legal: proof: d4 e5 c4 a5 e4 h5 g4 b5 gxh5 g6 f4 b4 d5 a4 b3 Be7 bxa4 Kf8 d6 Bb7 dxe7+ Kg7 fxe5 Qc8 e6 Ba6 e5 Bb5 cxb5 Qd8 Kd2 Kh6 Ke3 Kg5 Ke4+ Kh4 Kd5 f5 e8R c5 Kd6 f4 h6 g5 e7 f3 e6 f2 h7 c4 a5 g4 a4 c3 a6 g3 a5 g2 a7 c2 a6 Nh6 Qd2 Kg4 h4 Kg3 h5 Rf8 h8N Rf5 Bc4 f1B Nf3 g1N Ne1 Bg2 Nc3 Qa5 Nf7 Ng8 h6 Rf1 h7 Nc6 h8Q Qa2 Qh7 Qa4 Rh5 Nf3 Rf5 Nh4 Rg5+ Kh3 Rc8 Qa2 e8Q Nd4 e7 Nf6 Rc6 Rh1 Qf8 Be4 e8B Nb3 Ke7 d5 Qfg7 d4 Kf8 Bg2 Qe4 Qb2 Qe7 Ne4 Qge5 Bf3 Q5c7 Nec5 Ra3 Rh2 Ra2 Rb8 a8Q Qa1 Qab7 Ra8 a7 Bg4 Raa6 Bc8 Re6 Nd3 Re4 Ndc5 Qbb8 Bb7 Rc6 Ba6 Qbb6 Re2 Qbb7 Rh2 Bb2 c1Q Ba3 Rd8 a8Q Qd1 Bc1 Rd7 Qb2 Re2 Bf4 Rg2 Qd2 Rh2 Qa5 Rc7 Qa4 Rd7 Bb8 Rc7 Qb6 Rb7 Qbc7 Ra7 Rge5 Kg3 Qab7 Kh3 Qc1 Kg3 Rg5+ Kf2 Qd2+ Qe2 Nd6 Kf1 Bh5 Qd3 Nf7 Qe2 Bd5 Qed1 Bc4+
4RRKb/2n1b2N/5PRq/Qb3qQ1/5p2/1n3N1k/R1B2Np1/1Q1rBRB1 b - - 0 1 legal: proof: c4 b5 e4 h5 f4 f5 g4 a5 gxh5 e5 fxe5 d5 cxd5 f4 a4 Ra6 axb5 Rd6 Nf3 Rf6 Ng1 Rf5 exf5 Bc5 Bg2 Be7 Bf1 Bf8 Kf2 Kf7 Kf3 c5 Ke4 g5 h4 g4 b4 a4 d4 c4 b6 c3 b7 c2 h6 a3 h5 g3 h7 g2 b5 a2 d6 Ne7 e6+ Kf6 d7 Kg5 Ke5 Qa5 d8Q Rg8 h8R Bh6 d5 Qc7+ d6 Rf8 b6 Qc6 d7 Qf3 Nc3 Kg4 Bd3 Ng8 e7 Nf6 Ke6 Nd5 e8N Na6 b8B Rf7 b7 Bg7 h6 Be5 h7 Rf8 Qa5 Ne3 Ba7 Bf6 b8R Nf1 Rg8+ Bg5 h8R Ne3 Rg6 Nb4 Bd2 c1Q Ne4 Nbd5 Bc2 Qb1 Be1 Ba6 d8Q Nc4 Nf2+ Kg3 Rc8 Nd2 Nf6 Qh5 Nf3 Qh6 Rf1 Bb5 Nh7 Nb3 Qd3 Rg8 Kf7 Nc7 Ra8 Re8 Rf8 Re5 Qe4 Rd5 Kg8 Rd1 Qde7 Nd4 Rae8 Nb3 Nh1+ Kh3 Bg1 Qc1 Qg7 Be7 Qge5 Qd2 Qf6 Qf2 Qg5 Qfh4 Qb7 Qg4 Nf2+ Kg3 Rc1 a1B Qb8 Bh8 f6 Qh2 Ra1 Qh6 Nd3+ Kh3 Ra2 Qf5 Qb7 Rc1 Qe4 Rd1 Qeb4 Nc1 Qb1 Nb3 Nf2#
1B6/2nN2N1/bPB1B2r/2RbR1Qq/p3RQp1/1brN2K1/2B2BQ1/k2q4 b - - 0 1 legal: proof: c4 b5 h4 g5 f4 f5 a4 e5 axb5 d5 cxd5 g4 g3 Nc6 Kf2 Bh6 Ke1 Bg5 hxg5 Nd4 fxe5 f4 Rh4 f3 Rh3 Ne6 Rh1 Nf4 gxf4 Kd7 Nc3 Ke7 Nb1 Ke8 Kf2 Kf7 b4 c5 e4 h5 d4 a5 g6+ Kg7 b6 a4 b7 c4 b8B c3 d6 h4 b5 h3 b6 h2 d5 c2 e6 Kf6 d7 Nh6 f5 Ng8 d6 Ke5 f6 Ra6 g7 Qe8 d8Q Rh6 f7 Ra7 f8Q Qh5 d7+ Rc7 e7 Bb7 e8B Ne7 g8B Rf6 Qe2 Kd4 e5 Qf5 e6 Bc8 Be3+ Ke5 Na3 c1Q Kg3 f2 Nc2 Nd5 e7 Qd1 Rc1 Rh6 Nf3+ Ke4 Nb4 Rh4 Nd3 Qe6 Nfe5 Qh6 Be6 Rc6 Rc5 Qh5 Bg6+ Qf5 e8N Rh6 Ng7 Ba6 Qg5 Nc7 d8R Bc4 Nd7 Bb3 Rg1 h1B Re8 Bf3 Bh3 f1B Qg2 Be2 Bf2 Bf1 Be1 Kd4 Re5 B1e2 Bf2+ Kc3 Bh7 Qg6 Qff4 Qh5 Rc8 Bfd5 Re1 Bf1 R1e4 Kc2 Bhf5 Kb1 Bg6 Rc3 Bgf5 Na6 Rc5 Ka1 Qg1 Rg6 Bg2 Rh6 Bf3 Nc7 Qg2 Bb7 Re3 Be2 Bc6 Bf3 Re2 Bfd5 R2e4 Ba6 Rd4 Rc1 Ne1 Rc4 Bc2 Rc3+ Nd3 Nb5 Rdc4 Nc7 Rce4
4knB1/6QN/R1P1Q1rq/2B5/p2BpN2/1r1Bb1R1/2Qr2R1/K1N2Bbr b - - 0 1 legal: proof: g4 g5 h4 b5 f4 f5 gxf5 c5 a4 g4 axb5 c4 e4 c3 f6 Na6 e5 Qc7 f5 Kd8 dxc3 Qb8 c4 Nc7 c5 Qb6 Bd3 Ne6 Bf1 Ng5 hxg5 Bb7 Ra4 Bd5 Ra1 Bf7 e6 Kc7 exf7 Qb8 Ra6 Qc8 Ra1 Qd8 Kd2 h5 Kc3 d5 b4 Kd7 Kb2 a5 c4 e5 g6 g3 b6 e4 b5 d4 g7 g2 c6+ Kc8 b7+ Kc7 b8R h4 c5 d3 Nd2 h3 Nb3 d2 Rh2 Qd6 Qc2 d1R Be3 Qd3 Nc1 Rh5 Bd4 Bd6 f8Q Rg5 f7 Nf6 g8B Qe2 Qg7 Be7 f8N Ra7 Nh7 Qe1 Nge2 g1B Rg2 h2 Nf4 Ne8 f6 h1R f7 Bf6 f8B+ Be7 Ra2 Rg6 Ka1 Qe3 Ra8 a4 Ra3 Ra5 Ra6 Kd8 b6 Rd3 b7 Nf6 c7+ Ke8 c8B Rb5 b8Q Rd2 c6 Bc5 Qd6 Nd7 Qdf6 Ba7 Bfc5 Nf8 Bce6 Rb3 Bec4 Qh3 Qf5 Qh6 Qg4 Rb8 Rag3 Rb3 Bcd3 Be3 Be7 Bb6 Qe6 Bg1 Be5 Bbf2 Bd4 Be3 Bec5+
5R2/1Pp1qBK1/rqq5/2b4Q/N3NRp1/1Nr2R1Q/1Br1k1nB/1N1N1Q2 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 h4 g5 f4 Na6 f5 Nc5 f6 Ne4 Na3 Kd6 Nb1 Bf5 gxf5 g4 Ra6+ Kd7 Ra1 Ng5 hxg5 Bh6 Rh5 Bg7 Rh1 Bf8 Kf2 Kd6 Ke3 Kc5 Ke4 a5 Ke5 h5 d4+ Kb4 b6 h4 b7 h3 b8N h2 d6 e6 d7 a4 g6 a3 d5 a2 g7 Qe7 d8Q Ra4 d6 Rh6 d7 Rh5 Nc6+ Kc5 b4+ Kb6 b5 Kc5 b6 Rh7 b7 Ra6 Qf3 Qe8 Bb2 Be7 f8Q Rh3 f7 Ra3 f6 Rh4 Nd4 Rh7 Bc4 Ra5 Qh3 Rb5 Nge2 Nh6 g8N Rb3 Rf1 h1Q Rf4 Qf1 Nec3 Nf5 Nd1 Rc3 Nb3+ Kb4 Qc8 Qf2 d8N Nh4 Qh6 Qa7 f8R Qb6 f7 Ng2 Q6h5 Qec6 Nf6 Bc5 Ne4 Rc2 Kf6 e5+ Ne6 Rh8 Nec3 e4 Kg7 e3 Na4 e2 Ng5 e1Q Qf5 Qe7 Qfd3 Rh6 Qf1 Rd6 Ne4 Rd3 Re8 Rdc3 Rd8 Qee6 f8B Qed7+ Bf7 Qe7 Rd3 Kb5 Na3+ Kb4 Rc1 a1R Nb1 Qee6 Bd6 Kc4 Rff3 Ra2 Bh2 Ra3 Rf4 Ra1 Qe1 Ra3 Rdf3 Ra1 Ne3+ Kd3 Qg1 Ke2 Rcf1 Qe7 Nd1 Ra3 Rd3 Be3 R1f3 Ra1 Rd8 Bc5 Rf8 Bd6 Nac5 Ra6 Na4 Bc5 Qf1#
3n4/R1N2p1B/1qq3RB/1N2Q2b/1Kn1Q2Q/P3k3/NN1p3b/2R1BqbN b - - 0 1 illegal: No possible last move
1q4R1/1QNNrr1P/2BqR3/n1q2q2/4BB2/1Qp4R/K1Bkbp2/1B3Q1N b - - 0 1 legal: proof: c4 e5 a4 h5 f4 g5 fxe5 d5 cxd5 b5 axb5 h4 g3 g4 Ra6 Be7 Ra5 h3 Ra1 Bh4 gxh4 g3 Ra3 g2 Ra1 Nd7 Ra2 Nc5 Ra6 Ne4 Ra1 Ng3 hxg3 Ke7 Qa4 Kd7 Qd1 Ke8 d4 Kd7 Kd2 a5 Kc3 c5 Kb3 f5 e4 a4+ Ka2 c4 b4 c3 e6+ Kd6 e7 h2 e8B a3 e5+ Kc7 g4 Kb6 e6 f4 g5 f3 d6 f2 g6 Nh6 h5 Rh7 d5 Nf5 h6 Rd7 h7 Qf6 e7 Rb7 g7 Rbb8 g8B Qe6 d7 Nh4 d8R Qc6 d6 Bb7 d7 Qe6+ Qb3 Rc8 Ne2 g1Q Bf4 Rab8 Bg6 Qg3 e8B Nf3 Bg2 Qgg4 Ng3 Qf6 Bc2 Nd4 Bge4 Ka7 b6+ Ka6 b5+ Ka5 Bc4 Qgf5 Bc4d3 Ba6 b7 Qd6 b6 Rc7 Re1 Nc6 Nh1 Ra8 b8N Raa7 b7 Bb5 Re2 Kb6 Re3 Kc5 Rh3 Kd4 Rc8 Na5 d8Q Qc5 B8c6 Rf7 Nd7 Ba6 b8Q Bc4 Nf8 Rae7 Qb7 Qf5 Nd7 Qb8 Ng3 h1Q Qg8 Qf3 Nh1 Qc5 Qg1 Qg4 Qf1 Qgf5 Rg8 Bb5 Be2 Bd3 Bh5 Be2 Bg6 Qbd6 Nd2 Qb8 Nc4 Qcd6 Ncb6 Qfc5 Bg3 Ke3 Na8 Kd2 Re1 Qb5 Bed5 Re8 Bb1 Bd3 Bf5 Ree7 Re6 Be2 Bfc2 Qd3 Nc7 Qf5 Qa4 Nc4 Kb3 a2 Qab5 a1Q Bde4 Qaa7 Bf4+ Qe3 Ka2 Na5 Bg3 Qb6 Qb3 Qbc5 Bf4+
1b2Qbqn/3N2r1/2p1N1R1/k3Q3/pNNP2p1/RB1RKnQ1/5rB1/2B2N2 b - - 0 1 illegal: No possible last move
1N4R1/R7/2pBn1pp/1qQn2Rb/R4R1q/3QbPN1/1qB1NB2/1Q1K1k2 b - - 0 1 legal: proof: g4 a5 c4 d5 cxd5 f5 gxf5 b5 f4 g6 h4 b4 h5 Ra7 h6 Rb7 a3 Rb6 axb4 Rc6 b5 Rc3 Rh4 Rf3 exf3 Nf6 Rh5 Rg8 Rh1 Rg7 hxg7 Ng8 b4 Kd7 d4 Kd6 b6 e5 f6 e4 f7 c6 b7 e3 b5 e2 b6 h6 f5 a4 f6 a3 Nc3 a2 Rh4 Bd7 Be3 Bg4 Bf2 Bh3 Qb1 Qc7 Ne4+ Kd7 d6 Ke6 d5+ Kf5 d7 Na6 d8Q Qg3 b8B Nb4 b7 Bg2 d6 Na6 d7 Nc5 Bd6 Qe5 b8N Ne7 g8R Ne6 Ng3+ Kg5 Rf4 Qb5 Ra4 Nd5 Qa5 Be7 d8Q Bh3 f8R Bg4 f7 Kh4 Re8 Bf6 f8R Bg5 Re7 Be3 Rff4 Ba7 Kd2 e1Q+ Kc2 Bb6 Bd3 Be3 N1e2 Kh3 Ra7 Kg2 Qab4 Bh5 Qc5 Qeb4 Kd1 Qb2 Bc2 Qf6 Qb2 Qh4 Rc1 a1Q Qb1 Qab2 Qd7 Nf8 Qf5 Ne6 Qd3 Qb7 Bb3 Qb6 Rcc4 Qb7 Bc2 Q7b5 Rg4 Ndf4 Rg5 Nd5 Nf5+ Kf1 Rcg4 Qe5 Rgf4 Qeb2 Nfg3+
1b2R1Qn/3QQNBr/3rbn1r/1PR1B2Q/K1B3k1/1NqR1N2/1q1q4/1Q4b1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kd7 f4 g5 b4 a5 d4 e5 Kd2 c5 Kc2 c4 b6 a4 b7 a3 d6 g4 b5 e4 d5 a2 h6 g3 h5 c3 Kb3 c2 h7 g2 f6 e3 f7 e2 h6 e1Q f5 Nf6 Bf4 c1R Nd2 Qe5 Rh5 Qde7 Ngf3 g1Q Bc4 Na6 b8Q Qb2+ Ka4 Qb1 Nb3 Qd4 Be5 Qbb2 Qe1 Rc3 Rd1 a1B Rd3 Qd8 Qb1 Nc7+ Qa7 Be7 f8Q Rc1 Qf7 Qdc3 Qg8 Rd1 Rg5 Rb8 Qc5 Rb6 Qa3 Nh5 f6 Ne8 f7 Nef6 f8B Nf4 Bg7 Ng6 Qb4 Qc7 Qc5 Qcd2 Qd4 Bd8 Qh4 Qc5 Qh5 Bc7 Rf5 Qcd4 Rg5 Q4c3 Rf5 Bb8 Rg5 Ne8 Rf5 Kd8 d7 Ke7 d8R Nf6 Re8+ Kd7 d6 Rh1 Bg3 Rh4 Rc5 Rd4 Be5 Rd5 Qf8 Rb7 Rd8+ Ke6 d7 Rb6 Qh2 Kf5 Re8 Rdd6 d8Q Rb7 Qfe7 Be6 Qdd7 Kg4 Qhh1 Rg8 h8N Rc7 Nf7 Nh8 Bf8 Rg6 h7 Rh6 Bg7 Bf5 Qf8 Qcc2 Qe6 Ng6 h8Q Qd4 Qhg8 Nh8 N7g5 Bc3 Qff7 Qb2 Bf8 Re7 Qd7 Be6 Rd5 Ba5 Qfg7 Q4c3 Qh5+ Kf5 Q7f7 Bb6 Qfg7 Bg1 Rc5 Rf7 Q7h7+ Rg6 Bh6 Re7 Qhg7 Rf7 Q7f8 Rh7 Bg7 Rgh6 Qff7 Qbc2 Qfe7 Q2b2 Qh2 Kg4 Nf7 Bf2 Qhh1 Bg1 Qh5+
5qqq/Br1nn2R/1QQN1QN1/RP6/2B1b2r/3N4/NnNbR3/1k2B1Kb b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 g4 Kc5 d4+ Kb4 d6 e5 f6 c5 f7 h5 d7 a5 d5 a4 g6 a3 f5 e4 f6 a2 g7 h4 g5 h3 d6 h2 g6 c4 b6 c3 b7 c2 Qf3 Na6 b8B Nc7 Ba7 Ne8 Bd2+ Ka4 b4 c1Q b5 Be7 f8N Nc7 f7 Nh6 g8R Qd1 g7 Qe8 d8Q Bg5 d7 Rb8 Bc4 Ne6 Ng6 Nc5 f8N Bb7 Qdf6 Qb3 d8Q Nf5 Ne6 Nd7 Be1 Ne7 Nh3 Bd2 Nc3+ Ka3 Nhf4 Kb2 Nd4 Qf8 Nc2 Rh4 Qdb6 e3+ Kf1 Ba8 Q3c6 e2+ Kg2 Rb7 Rh8 Qa3 g8N Qb3 Rf1 h1B+ Kg1 Be4 Nh6 Bh1 Rf2 Be4 Rc1 a1Q Nf5 Bh1 Rh7 Qba2 Bd3 Qag8 Nd6 Be4 Bc4 Bh1 Rh2 Be4 Bg3 e1N Re2 Nd3 Rf1 Bh1 Be1 Be4 Na2+ Kb1 Rf3 Qe5 Rg3 Nb2 Ra3 Bh1 Nd3 Qh5 Rg7 Qhh8 Rh7 Rc7 Qg2 Be4 Ra5 Rb7 Qgf3 Bf5 Qd5 Bfe4 Qdc6
1N3R2/1KQ1n2b/1RNbnNBB/RQ2b1Bq/5r2/2R4r/1nRPkbQ1/2b5 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kd6 f4 e5 h4 c5 b6 g5 f6 a5 b5 a4 h6 c4 f7 Kc5 f5 a3 f6 c3 h7 a2 h5 c2 b7 g4 h6 g3 b6 g2 d6 Bg4 d7 Qe8 d8Q Ra3 Rh3 Ra7 Qf3 Be6 Ne2 Kc4 Nd4+ Kc5 Bd3 g1B Bb2 c1N Qc7+ Kb4 Nc6+ Kc5 Nc3 Ne7 Nd5 Nd7 b8N Bd4 b7 Ra4 Qg2 Rb4 Bb1 Kc4 Rb3 Ra4 Rb6 Nd3 Bc3 Bc5 Ba5 Bg7 f8B Bg8 f7 Bd6 Nf6 Nb2 Bc3 Rb4 Bd4 Ra4 Be3 Rb4 Bg5 Nc5+ Kf3 Ra4 Bg6 Ne6 Ke4 Rb4 Re1 a1B Re3 Nd1 Ra3 Bb2 Ra5 Ra4 Na6 Bc1 b8Q Nb2 Qbb7 Ra3 Nab8 Rf3 Nb4+ Kb3 N4c6+ Kc2 Qa6 Kd1 Qb5 Nf5 Kd5 e4 Nh5 Bc3 Nf6 e3 Bg7 e2 f8R Qe7 Rc8 e1B Rf8 Bf2 Rc8 Bf7 Bf8 Bcd4 Bg7 Rf8 h8R Bg8 h7 Qe8 B7h6 Rb3 Raa6 B4e5 Ra5 Bf7 Rg8 Rh3 h8R Ke1 Rg7 Bg8 Rd7 Bh7 Rg8 Rf7 Rf8 Beg3 Na7 Bh2 Kc6 Ne7+ Kb7 Bhe5 Nac6 Kd1 Ng4 Rf4 Nf6 Ba3 Rd3 Bad6 Rg3 Qf7 Rd3 Ke2 Rc3+ Rc4 Rc2 Bh2 Rcd8 Bc5 Rd4 Be5 Rd3 Rf4 Bf5 Qh5 Bg6 Bcd6 Rdc3+
2KR2r1/2b2Q1B/3RB1bn/R1Q1r1qP/1Qnrk3/R3rr2/8/1nNNBNR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 e4 f6 d4 c4 b4 g4 h4 c3 d6 g3 d5 c2 e6+ Ke8 h6 a4 b6 a3 h5 a2 b7 g2 b5 Nc6 b8Q Qe7 d7+ Kd8 b6 Ra4 e5 Rc4 h7 Qa3 b7 Ke7 d8R Rc3 Nf3 g1N Qd4 Qb4 Bd2 c1R Bh3 Rc5 Nc3 Qa5 Nh2 Qc7 Nf1 Bg7 Nd1 Qd6 Be1 Ne2 Rg1 R1c3 Qa7 Bh6 Qb4 Bf4 b8N+ Qc7 Nd7 Re3 Qaa3 Na5 Qac3 Bb7 Ra8 Nc4 Ra5 Qd8 d6+ Ke8 e7 Kf7 Qc2 Nc3 e8R Qe7 Rd8 Nb1 Bg4 Rd5 Nc5 Rd4 d7 Kg7 e6 Bc7 Nb3 Kh6 Bh3 Be4+ Kg4 Qc5 e7 Qe5 e8B Bg6+ Qe4 Kg7 Qf4 f5+ Kg5 Qd5 Nc1 Nh6 Bf7 Rhe8 Bg8 R8e5 h8R Qb5 Bh7 Qc5 Qf2 f4+ Bf5 f3 Rhf8 Re2 Rf6 R2e3 Rd6 Qd5 Qc5 Kf7 Qb2 f2 Qbb4 Ke7 Rh8 Kf7 d8Q Kg7 Qe8 Qg2+ Ng3 f1R Qe6 Qd5 Rhd8 Rff3 Nf1 Nc3 Rb1 a1R Rb3 Nb1 Rba3 Ra2 Qcb6 Qb5 Q6c5 Rae2 Qed5 Re8 Be6 Rg8 Qf5 Re5 Ra2 R2e3 R5a3 Kh8 Kf6 Qa5 Ke7 Kg7 Kd7 Qb5+ Kc8 Qa5 Qg4 Kf6 Qe4 Qb5 Qb7 Qa5 Bd5+ Kf5 Be6+ Kf4 Qba7 Ke4 Ra1 Bb6 Qf7 Bc7 Qa4 Qd2 Qab4 Qg2 Ra5 Qg5 R1a3
1bR1B3/Prn2rk1/2b2q2/2nB2BN/3r1B2/1N2R3/nr1BN1K1/QrRQ2Q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kf7 h4 g5 f4 e5 Kf2 c5 d4 b5 a6 c4 h6 b4 h5 c3 f6 e4 h7 e3+ Kg2 b3 f5 e2 a7 e1R a5 b2 h6 g4 a6 g3 d6 c2 d7 Bb7+ d5 Qc8 d8B Be7 Bc7 Qe6 Bd2 c1R Rh3 Qc6 Bb5 Bd8 Bcf4 Qd6 Nc3 b1N Nce2 Be7 Be8+ Kf8 f7 Na3 Rb1 Rc6 Rc1 Qe5 d6 Nb1 d7 Rf1 d8B Bd6 Bh4 Nf6 Bhg5 Rg8 h8R Nc3 h7 Kg7 f8N Na2 Nd7 Ne4 Nc5 Rc7 Nb3 Bc6 f6+ Kf8 f7 Rb7 Ned4 Kg7 Nge2 Rf3 Qg1 Nc5 Qd1 Qf6 Nf5+ Kg6 Qg1 Rg7 f8Q+ Rgf7 Qe7 Rd3+ Qe4 Bc7 Qf3 Rd4 Rf8 Bd6 h8Q Bc7 Bd7 Be5 Rc8 Bd6 Be8 Bc7 Kh1 g2+ Kh2 Bd6 Qd3 Be5 Re3 Bc7 Qb1 Bd6 Qd1 g1R Qa1 Bc7 Nfg3 Rf1 Qh5+ Kg7 Kh3 Rf2 Qg1 Rf1 Rc2 Rb1 Rc1 Ne6 Qf3 Nd7 Kg2 Rab8 a8B Ndc5 a7 Be5 Na5 R7b2 Nb3 Rbb7 Qd5 Bb8 Qf3 Bb5 Qff1 Nc7 Qd1 Rb6 Be4 Bc6 Bd5 Rb7 Nh5+
1B2kr2/1nN3bR/B4Q2/bn1bQQ2/qB1N1n1r/2nR2r1/2B1P3/B1K2RN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 c5 Kd2 f5 b4 g5 h4 a5 h6 f4 e6 a4 b6 c4 d6 g4 h7 g3 e7 g2 h5 f3 h6 f2 d5 a3 b5 a2 d7+ Kf7 e8B+ Ke7 b7 Na6 b8Q Bg7 b6 Qc7 d8N Kf8 d6 Qc5 d7 Qb4+ Nc3 Nc7 b7 Ra3 Qc2 Ne7 Bg6 Nb5 Qe5 Nf5 b8B Nfd6 Ne6+ Ke7 d8R Qa4 Qcf5 Nb7 Rb1 a1B Rd3 Bd7 Bb2 Bc6 Kc1 Bd5 Rh4 Rf8 h8B Rb3 Bh7 Ke8 Ba3 Rb4 Qef6 Rb3 Bb4 Ra3 Ne4 c3 N4c5 c2 Nd4 Bc3 Nce6 Be1 Ngf3 g1R Bg2 Rh1 Ng1 f1N Be4 Nd2 Bg6+ Rf7 h7 Rc3 Ra1 Nb1 Rh5 Rh4 Q6e5 Bf8 Bg7 Rb3 h8Q N1c3 Rh7 Ra3 Kb2 Bd2 Rf1 c1N Bg2 Nb3 Bf6 N3c5 Qg7 Be1 Qh6 Bg7 Kc1 N5e4 Bh3 Ng5 Bg4 Nh3 Qhg5 Bf8 Bg7 Nf4 Qgf6 Bh1 Bh8 Bg7 Bf3 Bg2 Bd5 Be4 Bb3 Bd5 Bc4 N5d6 Ba6 Ndb5 Bh5 Rb3 Bf3 Rf8 Be4 Ra3 Rd1 Bh6 Be7 Bg3 Q6g5 Be1 Nb3 Nb1 Qd4 Qb4 Bc2 Rh1 Qe3 Rh5 Ba1 Qa4 Nbd4 Rh4 Qee5 Ba5 Qgf6 Rg3 Rd3 N1c3 Bb4 Bg7 Nc7#
RQRk3N/1B2b1N1/r1R1r3/1nq1R3/QPb1rB2/R3Nr2/2Qn2n1/4Bb1K b - - 0 1 illegal: No possible last move, all moves rejected
1n2k2r/2B3nR/3b1Nr1/1Q1qNBn1/1qb1rRB1/BQ3N2/r4RP1/1K2QB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 h5 Kd2 c5 Kc2 f5 e4 a5 b4 a4 b6 a3 e6 f4 b5 f3 b7 f2 b6 c4 d6 a2 e7 h4 d5 c3 d7+ Kf7 e8B+ Ke7 e5 h3 g6 h2 g7 Rh5 e6 Rh3 d6+ Kf6 e7 Na6 b8N Rh8 b7 Nc5 Bh5 Nh6 g8Q Na6 e8B Nf7 Nf3 Ng5 Nbd2 Ra7 Rb1 a1R Nc4 Ra4 Nce5 Re4 Qe1 Qa5 d8R Be6 d7 Ke7 Bhg6 Qb4 Ba3 Bc4 Bf5 Rh6 Rc8 Rg6 Rb2 Ra8 Kc1 c2 Bf7 Ra7 B7e6 Ra8 d8B+ Ke8 Nbd7 Nb8 Rc7 Ra7 Rg1 h1R Bg4 Rh5 Bef5 Rh8 Qd5 Ra4 Qb5 Bd6 Rh1 Ra6 Rh7 Ra5 Rc5 Ra4 Bc7 Ra7 Be2 f1N Rd5 Ra6 Rd4 Ng3 Bf1 Nh5 Ra2 Ng7 Rb2 Re2 Rf4 Re4 Ra2 Qa5 Qb3 Qb4 Kb2 Ra5 Ka1 Ra4 Rb2 c1Q+ Ka2 Qcc3 Rf2 Qd3 Ka1 Qd5 Kb1 Na6 b8Q+ Ke7 Qa8 Nb8 Qb7 Ke8 Qb5 Ra5 Bb2 Ra2 Bc1 Rh6 Ba3 Rg6 Nf6+
2r2R2/3B2N1/bK1QRb1Q/6n1/R3Bb1r/1Qn1nq2/NPbN1Bqk/3Q3Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 g4 a5 d4+ Ke4 f4 e5+ d6 h5 g6 a4 b6 c6 g5 h4 d5 h3 g7 h2 f6 a3 f7 a2 b7 Qa5+ Bb5 Rh4 g6 Qc3+ Kb6 c5 d7 c4 d8Q Be7 f8R Nc6 b8Q Qf3 f5 c3 f6 c2 d6 Nh6 g8Q Nb4 g7 Ng4 f7 Ne3 d7 Kf4 Nd2 Kg3 Qh8 Bf6 g8B Ba6 Ne2+ Kg2 Bd3 e4 Re1 h1B Nc3 Kh3 Qb7 Rc8 Qdc7 Kg2 d8N Kh3 Qc4 Kh2 Qb3 Qg2 Qh6 Nbd5+ Ka7 Qf3 Ne6 Bg2 Ng7 Bf1 Bc4 Bd3 Bb5 Qg2 Bd7 Qf3 Ne2 Nc3 Kb6 Qg2 Bh7 Qf3 Rb1 a1Q Qa8 Qa4 Ra1 Qc4 Ra4 Qd5 Nd4 Qg5 Nc6 Qgg2 Nb4 Nf1 Be8 e3 Na2 e2 Bd7 Ne3 Bg6 Kg3 Be4 Kh2 Rg1 e1N Qc6 Qgh3 Rg6 Qfg2 Qcd5 Nf3 Qdh5 Ng5 Qhf3 Be5 Re6 Bf6 Qff1 Qf5 Qh1+ Kg3 Nb1 Qff3 Bd2 c1B Be1+ Qff2 Nd2 Bc2 Rd8 Qf3 f8Q Qg2 Qfb4 Qf3 Rf8 Qg2 Qf1 Kh2 Qd6+ Qfg3 Bf2 Qf4 Qdd5 Qff3 Qd6+ Kh3 Rfe8 Nf5 Nb1 Bf4 Nd2 Kh2 Rf8 Ne3 Qh1+
Q2rR1bq/K1n1N1N1/2BqB3/3R1b1B/1R1Q1r2/3r1QP1/2kBnb1N/3B3b b - - 0 1 illegal: No possible last move
2Qb2rb/3qb1nR/1nb1QNN1/Q2PrB1N/8/k2NB3/1n4NR/BKR2q2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d6 Kd7 f4 c5 b4 g5 d4 e5 Kd2 a5 Kc2 e4 h4 a4 b6 Kc6 b7 c4 b5+ Kb6 f6 Ka5 b6 Kb4 f5 a3 h6 a2 d5 c3 f7 g4 h7 e3 d7 g3 f6 e2 h5 e1B h6 g2 Nf3 g1Q Qe2 Ra3 Nbd2 Bd6 f8Q Ne7 f7 Qg2 Qe6 Qg7 Rh2 Bf4 Nh4 Qf6 Ndf3 Ra4 Bd3 Ra3 Ne5 Ra4 Ng2 Qc7 d8Q Bg5 Be3 Nd7 b8N Ka3 b7 Rg8 h8B Re4 h7 Qf1 Rb1 Qc6 Qa5+ Qa4+ Kc1 Nb6 Nbd7 a1B b8N Bb7 Qc8 c2 f8N Nf5 Nfg6 Bd8 Bg7 Bd4 h8R Bc5 R8h7 Bce7 Ng4 Ba8 Nc6 Bb7 Ba1 Bc3+ Ne1 Bcf6 Nb4 Re5 Be4 Bh8 Bd3 Qf4 Ng2 Ng7 Bf5 Qf3 Ngf6 Qf2 Nh5 Qf1+ Kd2 c1N Ndf6 Nd3 Rc1 Nb2 Nd3 Ba8 Rd1 Bb7 Kc1 Ba8 Kb1 Bb7 Qd2 Qd7 Rc1 Bc6 Qa5+
3rb1KN/3bQ1QR/2Bn3P/1n2B1qb/2N2NRB/nk6/3Q4/1RrQb1qQ b - - 0 1 illegal: No possible last move
rQ4rN/1B2bb2/P2B1B2/Nb6/1qR1R2R/B1n2qNK/nr3rQ1/1k2QB2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 Kd6 a4 g5 f4 c5 Kf2 b5 Kg2 e5 h6 b4 f6 c4 h7 g4 h5 c3 a6 b3 a7 b2 f5 g3 a5 c2 a6 e4 f7 e3 f6 e2 h6 e1R Ne2 Be6 Rh4 Bc8 Re4 Qe7 Nd2 b1B Ra4 Bb7 Rc4 Nc6 Kh3 g2 Ba3+ Nb4 Ng3 g1Q Nb3 c1R Na5 Qf2 Qf3 Rc2 Qg2 Rd8 a8B Bc6 Bb7 Bb5 Be2 Rb2 Bf1 Bg7 f8B Ree2 f7 Bf6 Bg7 Ba2 f8B Bh4 Bf6 Ra8 Nh1 Qf3+ Ng3 Kd7 d6 Rf2 d5 Bb3 Bc3 Nf6 Be5 Rg8 h8R Na2 h7 Ng4 Bfg7 Ne3 Bgf6 Nd1 Bf4 Ndc3 B4e5 Ke8 d7+ Kf7 d8Q Kg6 Qb8 Qb4 d6 Bg5 d7 Bh4 Rc6 Bf7 d8Q Bg5 Bd6 Bh4 Bfe5 Be7 Qe8 Kg5 Bf4+ Kf6 Bfe5+ Ke6 Bf6+ Kd5 Re5+ Kd4 Rc8 Rfe2 Re4+ Kd3 Rc5 Kc2 Rcc4 Bf8 Qe6 Kb1 Qe5 Nd1 Qc3 Rf2 Qe1 Be7 Rh4 Rg6 Re8 Rg5 h8N Rg8 Qe2 Ndc3 Qd2 Bf8 Ree4 Be7 Qe1+
1nQ2kq1/1R3q1P/RBBR4/2b2r1N/1qN3NB/1qB1rb2/1B4Q1/1bK3nQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 f5 b4 c5 e4 a5 d4 g5 Kd2 c4 b6 a4 e6 g4 e7 f4 e5 f3 h6 a3 d6 g3 h5 a2 b5 g2 d5 f2 h7 Be6 h6 Bf5 b7 Nc6 b8Q Ra7 b6 Kf7 e8N Be4 e6+ Kg6 e7 Kf7 d7 Rb7 d6 Na7 Qc8 Bf3 Ne2 g1Q Nf6 Qc7 d8B Nc6 d7 Ne5 Bb2 c3+ Kc1 c2 Bg2 f1B Ng3 Bd3 Ng4 Nf6 Nd2 Ra7 e8R Bc5 b7 Ra3 b8Q Rf8 h8B Qb7 h7 Qb3 Rb1 a1Q Re6 Qaa2 Rd6 Qd4 Qa8 Qdb4 Bc7 Bg6 d8B Nfd7 Rh4 Nb8 Bb6 Ke8 Ra1 Rf5 Nh5 Kf8 Qh1 Qf7 Qe4 Re3 Nc4 Qab3 Ra7 Nec6 Bhc3 Nd4 Ra6 Ne2+ Kd2 Ng1 Kc1 Qg8 Rh2 Qf7 Bh4+ Qe8 Qd3 Qa2 Qd2 Qb5 Ba3 Qa5 Nce5 Qg8 Qe2 Be4 Bbd8 Rff3 Kb2 Qef7 Nc4 Bc6 Qf2 Bd3 Qf1 Rf5 Bf3 Ba8 Rf2 Bd5 Qfg2 B5e4 Rf1 Be2 Rb1 c1Q+ Ka1 Qd1 Kb2 Qda4 Kc1 Q4b5 Rb3 Bb1 Bc6 Bf3 Bab2 Qba4 Rbb6 Qb3 Rb7 Qab4 Bb6+
NRQ1n1Q1/q1rPBb1k/B2RBb2/2Q5/r1r1N1rq/2N4B/4q1n1/2K2RB1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 Kg7 g4 a5 d4 e5 Kd2 c5 g6 h5 b6 c4 g5 a4 b5 e4 d6 h4 b7 a3 d7 h3 b6 a2 d5 h2 d6 Nh6 f6+ Kg8 f5 Nf7 g7 Qe8 d8B Rh3 d7 Nd6 f7+ Kh7 g8B+ Kg7 f6+ Kg6 Be7 Ra6 Ne2 Rc3 Qb3 Bg7 f8Q Nc6 b8Q Nb4 b7 Nd5 f7 Ne3 Bh3 Bf6 Rd1 h1R Ng3 Ra4 Qa8 Ng2 b8R Rg1 Bb2 Re3 Kc1 Ba6 Bd4 c3 Qbb7 c2 Qc8 Ree1 Nc3 e3 Nge4 e2 Qac6 Bb5 Qc5 Bc4 Rab1 a1Q Qg7+ Kh5 f8N Bf7 Ne6 Qa2 Qh8+ Kg6 Nc7 Qd8 R1b6 Ne8 Na8 Rc4 Rc6 Qa7 Rd6 Ref1 Re1 Rf4 Rf1 Rg4 Be3 Rh1 Bg1 e1Q+ Rd1 Qe2 Rd6 Bd5 Be6 Ra4 Qf8 Kh7 Bf7 Ba2 Bc4 Bb3 Ba6 Bf7 Ng3 Rgc4 Nge4 Rh2 Be6 Rh4 Bh3 Ng7 Qe8 Rg4 g6+ Kh6 Qg8 Ne8 g7 Kg6 Kb2 c1R+ Rd2 Rb1+ Kc2 Rb7 Kc1 Rc7 Rd3 Kh6 Rd6 Bh5 Qgd5 Bf7 g8B Kg7 Bh7 Kh6 Bf5 Kg7 Be6 Kh7 Qg5 Bh8 Bf8 Qf6 Be7 Qh6 Bd4 Bf6 Bg1 Qh4 Qg8+
bNBB1rRr/1RRq3b/1Q6/1nbb2Q1/n1Nk2nQ/5RK1/nPRBN3/8 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 d4 c5 e4 h5 g4 f5 d6+ Ke6 d5+ Kd7 e6+ Ke8 d7+ Ke7 e5 a5 b6 h4 b7 f4 g6 a4 g5 a3 g7 a2 g6 c4 Rh3 c3 Bd2 f3 Qb3 c2 Ne2 c1N Na3 Nh6 g8Q Na6 b8N Bb7 g7 Bc6 Nc4 Nc5 Qb6 Na4 Qh7 Qe8 g8R+ Qf7 Rh2 h3 Kg3 f2 d8R Ng4 Rc8 Qg7 Bg2 f1B Rc7+ Bd7 Be4 Bg2 Bf5 Bh1 Rf2 h2 Rf3 Qf7 Rb1 a1N Rb7 Na2 Rc1 Bg2 Rc2 h1B Rg7 Nb3 Qh4+ Nf6 Rg8 Nd4 Rc7 Nb5 d6+ Ke8 e7 Ng4 Rb7 Qh7 Qg5 Kf7 e8R Be7 Qh4 Be6 d7 Bd5 Qg5 Bc5 Rc8 Be4 Rcc7 Bd3 Nc6 Rf8 Nb8 Be4 Qh4 Qg7 Be6+ Kg6 d8B Bd3 Re3 Bd5 Bd7+ Kf7 e6+ Kg6 Bc8 Kf5 Rf3+ Ke4 Qg5 Qd7 e7 Bg2 Nf4 Bh1 e8Q+ Kd4 Qeh5 B3e4 Qhh4 Bh7 Ra7 Ba8 Rab7 Bg2 Ra3 Bc6 Rf3 Bd5 Ne2+
r2B4/2B1rr2/3P1n1N/1QR1N2k/B2BRK2/3QNbQR/1qb2nr1/b3bB2 b - - 0 1 illegal: No possible last move, all moves rejected
1bK1N1Nr/r3Q1q1/3q1QB1/BB6/2bRB3/3Q2N1/1Pq1p1rk/1nBRn1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 d4+ Ke4 f4 e5 d6 c5 d7 a5 d5 h6 g6 a4 g7 a3 b6 a2 f6 c4 b7 c3 f5 c2 f7 Ne7 g8B Ng6 f6 Bb4 f8Q Ra7 d6 Qb6 f7 Qd4 Ne2 Qf2 Rg1 Nf4 Nd2+ Ke3 Kf5 e4 g4 h5 g5 h4 g6 h3 g7 h2 Qe7 h1Q f8Q Qh6 Ng3 Qfh2 Bh7 Kf2 g8B e3 Bd5 Qg7 Bb5 e2 Nc4 Nc6 b8N Ba6 d8B Ne5 d7 Bd6 Qd3 Nf3 Be4 Ne1 Bg6 Nd5 Qff6 Nc3 Nc6 Nb1 Ba5 Bb8 d8R Qhh6 Ke6+ Qf4 Bcd2 c1Q Rd4 Qd1 Nd6 Qc2 Bef5 Qfh6 Ne8 Qf4 Bc1 Qfh6 Rh1 Kg2 Rg1+ Kh2 Be4 Qhd2 Qef7 Qf4 Ne7 Qfh6 Ng8 Qhd2 Bd7 Bc4+ Ke7 Qb4+ Kd8 Qd6 Qf8 Nd2 Rb1 a1R Q8e7 Ra4 Ra1 Nb1 Kc8 Rb4 Bb5 Rb3 Qd2 Rf3 Qd1 Rf2 Qd3 Rg2 Be3 Nc3 Rd1 Nb1 Bc1
2Qq2b1/rrN1B1B1/2Kb2B1/2R4b/1k2nqP1/1n5N/1QQ1prRR/R3NR2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 b4+ Kb6 d4 h5 f4 a5 d6 c5 Kd5 e5 f6 e4 g6 h4 f7 c4 f5 e3 f6 c3 d7 a4 g7 h3 Nd2 h2 Bb2 a3 Nh3 c2 Nf3 c1R Bd3 e2 Bg6 a2 Qc2 Ra6 Ne1 Qe8 d8R Bg4 Rc8 Bh5 Rc5 Be7 f8Q Ra8 f7 Nh6 g8R Kb7 b6 Ka6 b5+ Ka5 b7 Rh7 b6+ Kb4 g3 Na6 b8N Bd6 b7 Qe3 Kc6 Ng4 d5 Qf4 Bg7 Nf2 Qc8 Ra7 f8R Ne4 Rf1 h1B g4 Qd2 R8f2 Qf4 Rh8 Bf3 Rg2 Rb1 Bb2 Rf7 Bg7 Rf5 Nd7 Rf7 Nb6 Rb3 b8Q Rfb7 Ra5 Nac5 Na8 Rb1 Rh7 Nb3 Rc5 Rd1 Nc7 Rc1 Rb1 a1Q Rh8 Qb2 Ra1 Qbf6 Rh7 Qd8 Rh6 Be5 d6 Rb1 d7 Bd6 Rgg1 Bh1 Rg2 Rd1 Rh7 Rd3 Rh6 Rf3 Rh8 Rf2 Rh7 Qg8 d8B Qh8 Bdf6 Qd8 Be7 Ng5 Qa8 Ra4 Ng1 Ra2 Bf7 Bg6 Rh2 Ra5 Nh3 Bh5 Bg6 Ra4 Rd5 Ra3 Rgg1 Be4 Rg3 Bd3 Rgg1 Bc4 Rgg2 Ne4 Rc5 Bg8 Qa7 Ra5 Qa6 Rab5 Qaa2 Ra5 Qab1 Raa7 Qbb2
r4BQ1/R1Nk4/1Q4K1/4p1Qr/B1PQn2r/2N1RbB1/qb1q2N1/2RQ2nb b - - 0 1 illegal: No possible last move
1R1N1bbq/6Q1/n1Q1NR2/1Rrp4/n2q1B1B/3P2QB/3r2NN/Nk1qn2K b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 b3 axb3 Qb6 b4 Qc7 b5 Qd8 c4 Kf7 h4 Kf6 f4 d5 Kf2 a5 Kg2 e5 d3 g5 h6 e4 h5 g4 b6 a4 h7 a3 c6 a2 c7 g3 c5 e3 c6 e2 h6 e1Q b7 Qee8 Nd2 Qdd7 Qg4 Ra5 Ngf3 Qdd8 Nb3 Ra3 Nh2 Ra8 Rb1 Na6 b8Q Qf7 Qg7+ Ke7 f6+ Ke6 f5+ Ke5 Bg5 a1Q Bh4 Be6 c8R+ Qfc7 f7+ Kf4 f6 Bb4 f8B Ke3 f7 Qa3 Bd6 Qa1 f8N Qb6 c7 Qbd4 Be5 Bf7 Ne6 Ne7 Kg1 Qg8 Bh3 g2 Rf1 Qa4 Rf6 Qd8 Bd6 Bg8 Bdg3 Qf8 Rd8 Ra7 c8Q Rc7 Be5 Rc4 Qc6 Nc8 Qbd6 Nb6 Rb8 Rc5 Qdc7 Qb2 Bf4+ Ke2 Qg3 Kd1 Q7d7 Qaa1 Qdg7 Na4 Rb5 Qaa3 Rb8 Kc2 Rb5 Kb1 Rb8 Bf7 Rb5 Rg8 h8N Qaa1 h7 Qd8 Ng6 Qd4+ Qf2 Re8 h8N Bg8 Nf7 Qb8 Nfd8 Re7 Nef8 Re2 Nfe6 Qbe5 Rb8 Qh5 Rb5 Qh8 Qe3 Rf2 Qg3 Ba3 Ne7 Bb4 Nf5 Rd2+ Ne3 Ba3 Nf3 Bb4 Kh2+ g1N+ Ng2 Kc2 Rb8 Qd1 Rb5 Kb1 Rb8 Ne2 Re1 Ng1 Kh1 Ba3 Nh2 Nf3 Rf1 Ne1 Rf2 Bb4 Re2 Qe5 Re4 Ba3 Reb4 Qd4 R4b5 Rcc2 Bhg5 Bf8 Bh4 Rc5 Na1+
2Rn3B/3n3r/2NRQ2P/3K1b2/1BrQ1qN1/1p1N1QR1/1bBnr3/N3kN1q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 a4 Kb4 h4 e5 d4 g5 f4 b5 a6 c5 f6 g4 d6 g3 a5 c4 f5 g2 d7 c3 a7 c2 a6 Rh7 f7 Bg7 f8N Kb3 h6 b4 f6 Rh8 h5 Rh7 f7 Qe7 d8N Be6 d5 Qc7 d6 Bd7 Nde6 Bc8 d7 Nc6 d8N Bd7 Bd2 Rh8 h7 Nd4 h6 Rc8 a8Q Qb7+ Nc6 Nf5 a7 Nh4 Bd3 Nf5 Ne2 g1N Ng6 Rc7 f8Q Nd4 N2f4 Ngf3 Kd5 e4 Rg1 e3 Qf6 e2 Ne5 e1R Ng4 Re2 Nc5+ Kb2 Rg2 c1Q Bc2 Bf5 Nb3 Qb8 Be1 Nd2 Rg3 Qf8 Qd6 Ne6 Ra6 Nd8 Na1 b3 Qe6 Qf7 Qb7 Bd4 a8R Nf6+ Kd6 Qh5 Rc8 Nd7 Kd5 Bg7 Qb4 Qh1+ Qbe4 Be5 Qf3 Bd4 Na5 Bf6 Rd6 Rc4 Nc6 Bg7 Bf2 Be5 Bc5 Bd4 Qg1 Qf1 Qge3 Kc1 Bb4 Bb2 Qd4 Qf2 Be4 Kd1 Nd3 Rg8 h8B Rg7 Qg2 Qf4 Qf3 Nf1 Nd2 Rh7 Ndf2+ Ke1 Bc2 Nh2 Qfe4 Nf3 Nf1+ Nd2 Qg2 Re3 Qf3 Re2 Nd3+
1R1rQ3/Qb3R2/2R1BB1p/nK1Nr1NQ/1n3q1b/3P3R/NB6/1b1qrkR1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 g4 c5 e4 f5 Ke2 a5 Kd3 h6 Kc4 a4 d6+ Ke6 d3 f4 b6 a3 d7 a2 b5 f3 b7 f2 g6 Na6 b8Q Qc7 d8B Nb4 b6 Nc6 g7 Nd4 g5 Be7 b7 Qd6 g6 Nf6 g8N Ng4 g7 Nf6 Qa7 Nb3 b8R Nd5 Rh3 Nb4 Bb2 Na5+ Kb5 c4 Nf6 c3 g8R c2 Nd5 c1Q Rf8 Bh4 Bf6 Bb7 Rf7 Re8 Qh5 Qd1 Nf3 Re7 Be2 f1B Nbc3 Bg2 Rb1 a1R Na2 Re8 Rc8 Rb8 Rc6 Rbd8 Rbc1 Qc2 Rg1 Re1 Bd1 Qe2 Bb3 Qd1 Rc8 Qc7 Rb8 Qcc1 Rc8 Re7 Rb8 Qf4 Ng5+ Kd7 e6+ Kd6 Ka4 Ree8 e7 Kc6 e5 Be4 Qa6+ Kc5 e6 Bh7 Qa8 Bg8 Qa6 Ba8 Rb6 Bb7 Qa7 Re5 Ba3 Kd4 Kb5 Rd7 Bc4 Red8 e8Q Re7 Bc1 Red7 e7 Qff3 Rh7 Bf2 Qef7 Bc8 Nc3 Bh4 Bb2 Qf4 Qf8 Be6 Rf7 Rc7 Qg8 Qc2 Bb3 Rc4 Rc6+ Rc5+ Kb6 Rc4 Nc7 Qe2 Nf3+ Ke3 Qh8 Kf2 Ng5 Rce4 Bd5 Qd1 Kb5+ Re3 Qg8 Re8 Qf8 Bb7 Qh8 Rg8 e8R Rf8 Rb8 Rd8 Rc5 R3e4 Qe8 Re1 Rc6+ R5e3 Bf3 Ba2 Bd5 Bb1 Ba2 Rf1 Be6 Re1 Kc5 Re5+ N7d5 Ba8 Na2 Bb7 Rgg3 Kf1 Kb5 Rd7 Rg2 Rd8 Rg1#
2b1q2Q/k1rBR2p/N3KBb1/n1R1Q1Q1/2Nbr3/B4NB1/BR2n2P/1q3n2 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 g5 Ke3 a5 Kd4 d5 c4 Kd7 e4 Kc7 f4 Kb7 e6 a4 Ke5 g4 e7 g3 e8B a3 c6+ Kb6 c7 d4 c5+ Ka7 b6+ Kb7 f6 a2 f7 g2 f5 d3 c6+ Ka6 f6 Bh3 c8R Bb4 f8B Bc5 f7 Bb4 c7 Nh6 b7 Bf5 Qd2 Qh4 Bg7 Bf8 Nf3 g1N Bd7 Be6 Qg5 Ng8 Bf6 Ne7 Ba3 Ka7 Nbd2 Ne2 Rb1 a1Q+ Rb2 Nf5 Nc4 Bg7 f8B d2 Bfd6 d1B Bg2 Qh3 Re1 Qh5 Bh3 Nfg3 Bg4 Na6 b8N Nc5 Na6 Qe8 Bh3 Bf7+ Bhe6 Nb7 Kd5 Rg8 e5 Bg6 Bf7 Rf8 e6 Nf1 e7 Na5 Bg3 Qb1 Ke6 Rb8 Bg8 Rb4 Bf7 Bdc2 Bg8 Bce4 Bf7 Bb7 Bg8 Qd8 e8Q Rf7 Qe7 Qf8 Qd6 Qd8 Qde5 Ra4 Rb8 Bc8 R8b5 Qf8 Rc5 Bh8 Ne3 Re4 Nc4 Bb7 c8Q Bg7 Be8 Rc7 Bd7 Bh8 Bf7 Qg8 Qf8 Bc8 Qg7 Qf8 Qg8 Bg7 Qh8 Qe8+ Kd5 Bh6 Ne3 Rb7 Qef5 Nd4 Qgg4 Re6 Bg8 Bf4 Qgg5 Re5+ Kd6 Rc7 Ba2 Re7+ Kd5 Be5 Nc4 Re6 Re3 Ne2 Qe4 Bd4 Qef5 Rec6 Re7 Re6 Qff4 Re3 Qfe5 Re4 Ke6
qN3NNQ/Q1NB1rP1/2Brq1Q1/1n3R2/2bbq2N/k3p3/b2B3R/R2K3n b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 g4 Kd6 f4 e5 b4 h5 f6 a5 g6 c5 g7 h4 b6 e4 b5 c4 f7 h3 b7 h2 b6 a4 f5 c3 f6 a3 g5 c2 g6 a2 Bd2 c1Q Bh3 e3 Nc3 Be6 Ne4+ Kd7 d6 Kc6 d7 Kb5 d5 Be7 f8R Ra4 f7 Na6 b8Q Rd4 b7 Qc4 d6 Qd5 Nf3 Qb6 d8N Rh7 d7 Nc7 Qa7 Nh6 g8B Bf6 b8N Nf5 Qc2 Ng3 Kd1 Be5 Nf6 Qe4 Bf5 Rd6 Nh4 Bc4 Ne6 Bd4 d8Q Qa6 Qb1+ Ka4 Bg4 Nb5 Nc7 Ka3 Bd7 Rh5 g7 Rf5 Bh7 Rf3 Ng8 Rf4 Re1 h1B Re2 Bf3 Bc6 Nh1 Bf5 Bg4 Bfd7 Bge6 Rh2 Rf5 Re8 Bed5 f8N Rf7 Re5 Be6 Qc2 Bed5 Rc1 a1Q Rf5 Ba2 Qc8 Bdc4 Qe8 Qb1 Qd8 Qe6 Qe4 Qd3 Ra1 Qa5 Qg4 Qde4 Qh5 Qa6 Qf6 Qa5 Qfg6 Qa6 Qh8 Qa5 Qb6 Qa8 Qa7+
4n1rr/K2R2pN/B4q1B/1NNb1n1k/1Q3NR1/b3QqQ1/P2B1N2/bnR5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 c5 h4 e5 f4 b5 d4 e4 d6 c4 f6 c3 a6 b4 d7 b3 f5 c2 d5 b2 Kd4 e3 h6 e2 d6 e1Q Kc5 Ne7 h7 Nec6 a7 Qe3+ Qd4 Qd3 h5 Qa3+ Qb4 Be7 h6 Qa4 Nh3 Bb7 Bd2 c1B Na3 b1N Ba6 Rg8 h8N+ Kf8 h7 Qe8 Kb6 Qc2 d8R Na5 d7 Qa4 f7 Nb3 Rg1 Bh1 Rg4 Bd5 Nb5 Nc5 Nf2 Na3 Bh6 Bf4 Rc1 Bg3 Bd2 Bf6 Bh6 Ke7 f8N Qh5 Nhg6+ Kf7 h8Q Qc2 Nf4 Ne6 Nh7 Ba1 f6 Nc6 Kb7 Rc8 a8Q Ncd4+ Ka7 Qcg6 Qb8 Nf5 Qb6 Nb1 Qe3 Qh3 Qbc3 Bh4 Qcd4 Nc7 Bg5 Be4 Nf8 Bb7 N8e6 Re8 Qa4 Bb2 Qb4 Ba3 Nc5 Rf8 Qh5 Qf3 Bh6 Bg5 Qh2 Rh8 Qg3 Bd5 Re8 Rb8 Re5 Rbg8 Re7+ Kf8 f7 Ne8 d8B Qd6 Qbd4 Bf6 Rd7 Be5 Ba5 Qf6 Qc4 Ba1 Bd2 Qe4 Rd8 Ke7 f8N Kf7 Qb4 Qf3 N4d3 Nfd6 Nh7 Nf5 Ng5+ Kg6 Nh7+ Kh5 Rd6 B3b2 Rd7 Ba3 Nf4+
1r1QqbN1/1bBQQp1R/1K4b1/5Pnr/RN2R2k/8/nq1N2R1/qBB1R3 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 Ke7 Kd3 g5 Kc4 a5 f4 d6 h4 g4 e4 a4 b6 a3 Kb5 g3 c4 d5 b7 d4 e6 Kf6 e7 d3 e8R d2 h6 a2 h5 g2 c6 Qc7 f5 Kg5 c5 Nd7 b8B Ngf6 h7 Bg7 h6 Nh5 e5 Qd8 c7 Ng3 e6 Bb2 c6 Ra4 e7 Rg8 h8R Rf4 h7 Rf2 Bd3 Nf8 Ne2 g1Q Nec3 Rg2 Nd5 Ne4 Nb4 Rg6 Rg8 Bb7 c8N Qh2 h8R Nh7 c7 Kh4 Re1 R6g5 Kb6 Ba3 Qa4 d1B Nd2 R2g4 Bb1 Nc3 Qd7 Rh5 Rg7 Rg1 Rg2 Ng5 Rh7 Bdf3 Reh8 Qf8 e8Q Qe5 Qee6 Qe8 Ne7 Rf1 c8Q Rf2 Nf1 Rb2 Nd2 Qe2 Qcd8 Rb3 Nc4 Qb2 Bc7 Bd1 Ng8 Be2 Qee7 Bd1 Bd3 Bdf3 Rb1 a1Q Nd2 Na2 Bc2 Rh6+ Re6 Bh5 Bd3 Bg6 Re1 Qc2 Rb2 Qc3 Bb1 Rh5 Rc2 Qd4+ Rc5 Qe5 Ra5 Qeb2 Ra4 Rc3 Bh2 Rc8 Bc7 Ra8 Rg7 Rb8 Rhh7 Qf8 Rge2 Qe8 Re4+ Kh3 Qe5 Ne6 Rh8 Bh7 Rg2 Bg6 Rh7 Ng5 Qed6 Qg7 Nd3 Qgb2+ Ka5 Bc5 Q6f6 Bf8 Nb4 Qa3 Kb6 Q3b2 R4e3+ Kh4 Qfe7 Qh8 R3e2 Qhb2 Re4+
kRb2b1Q/r2qPR2/1qbrQR2/1B2R3/1BK1p2N/Nn1BN3/5n2/3Q1qR1 b - - 0 1 illegal: No proof kernel
1q3qN1/Q2Qp1NN/1BrRQ3/K6R/2BnrNb1/k3NRn1/1b2PB2/2b2n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 d4 Kd7 Kd2 Kd6 Kc3 f5 Kb4 c6 h4 a6 h6 f4 g6 f3 g7 f2 b6 c5+ Ka5 c4 b4 c3 h5 c2 b5 Bg4 h7 Qc8 b7 Ra7 b6 Bd7 h6 Bg4 Nh3 Be6 Be3 c1B Nf4 Bg4 Bg2 f1Q Bf2 Bh5 Ra3 Qc4 Rf3 Qc2 Na3 Bb2 Nc4+ Kd7 d6 Kc6 d7 Qd3 d8R Qe3 d5+ Kc5 d6 Bg4 d7 Nf6 g8N Nh5 Qa4 Qd4 Ne3 Ng3 Rh5+ Qe5 Qb3 Bg7 Qe6 Bc1 Re8 Nh1 d8N Ng3 Rf8 Ra8 Rf6 Ra7 Qd7 Ra8 Rd6 Nc6+ Ka4 a5 b8N Ra6 b7 Nd4 Bh1 Rc6 Nde6+ Kb6 Bg2 Bf6 Ng7 Kc5 Qe6 Kb6 Nd7+ Ka6 Rd5 Qb8 Nf8 Kb6 Bh3 Be5 Rd6 Kc5 Ned5 Kc4 Ne3+ Kc3 Bg2 Kb2 Qd7 Nc2 Kb5 a4 Ka5 a3 Bh1 a2 Bg2 Qe8 b8Q+ Ka3 Qba7 a1N Qe6 Nd4 Qed7 Be6 Bh3 Qb8 Bg4 Bf7 Be6 Nac2 Bc4 Be8 Nf6 Rg8 h8Q Bg6 N8h7 Bf5 Qe6 Bg4 Qed7 Rf8 Qg8 Rfc8 Qge6 R8c7 Ned5+ Ne3 Ng8 Rb7 Nhf6 Rb4 h7 Ndf5 h8B Beb2 Nh7 Nd4 Rf5 Qh1 Rg5 Qh6 Rh5 Qf6 Bd3 Nef1 Ne3 Ndf5 Bb5 Re4 Bc4 Qff8 Ne8 Rc8 Bd4 Rc6 Bb6 Nd4 Ng7
b2n3B/NPQ2q2/RbRRN1k1/q3n1Q1/rRn4K/3B4/5pr1/1b2NRBQ b - - 0 1 illegal: No possible last move
1KB1qNn1/p1N5/1R2r1b1/3B2R1/1n1k1Nq1/Pbb5/QrQR2qB/Q1N4N b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 g5 h4 b5 f4 e5 d4 g4 a3 g3 c6 b4 h6 g2 c7 b3 h7 b2 h5 Bg7 d6 Be6 c8B Ne7 d5 Qe8 d7 Qg6 d8R Rg8 h8Q Qe8 h6 Na6 h7 Rb8 d6 Qb5 d7 Qb4+ Bc4 Rb5 Nd2 b1B+ Qc2 Rb7 Nb3 Qd6 Rh6+ Ng6 Nh3 g1Q Nf2 Re8 Qg8 Qgd1 h8Q Q6d2 Bd5 Qc3 Nh1 Ke7 f6+ Kd6 f5 Nb8 f7 Qh3 f8N Na6 f6 Nf4 f7 Qdf1 Ng6 Nb4 f8N Nh5 Bf4 Qg4 Nc1 Bf7 Ra2 Re6 Re8 Qfg1 d8N Q4g2+ Kf5 Nf6 Bh2 Rb5 Nf4 e4 Rh5 e3 Rg5 e2 Re7 e1Q Rb7 Qd4 Rb2 Qc4 Rb6+ Kc5 Ra2 Kd4 Rb2 Rd6 Ra2 Qe8 Nde6+ Ke3 Nc7 Re6 Qh4 Kd4 Qe1 Bh5 Rb2 Ba2 Qf7 Bb3 Ra2 Bh8 Qec3+ Kc5 Qa1 Ng8 Rb2 Bc3 Ra2 Re1 Qe6 Kd4 Qee2 Qd8 Ke6 Qe8+ Kd6 Bg6 Na6 Qd3 Kc7 Qdf3 Kb8 Qgg4 Qg2 Re6 Nc7 Qf1 Qcb2 Qg1 Qgc2 Q1g2 Qbb1 Qg1 Rb2 Q1g2 Qba2 Nd3 Qa2b1 Ba2 Qd2 Bc4 Rc2 Rb2 Qba2 Bb3 Qe2 Nb4 Qe4+ Kc5 Qf5 Kd4 Rf2 Qg1 Qc2 Q1g2 Rd2+
2q1N3/1bR1Q1r1/2NQ2bb/NpB3R1/B2b4/BK1R3B/P5Qn/rB2nb1k b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 Kd7 e4 f5 d4 h5 Kd2 c5 Kc2 f4 e6+ Kd6 e5+ Kc7 g6 b6 d6+ Kc6 a6 Kd5 d7 Ke4 d5 c4 d6 c3 g7 h4 g5 f3 a7 f2 g6 h3 e7 h2 e8B Qc7 d8Q Ba6 e6 Nf6 g8B Qc5 e7 Bh6 g7 Qf5 d7 Nc6 Ne2 Kf3+ Kb3 c2 Qd6 Bg5 Bh7 Be3 g8R Bd3 Ba3 Ng4 Rg5 Nce5 Nd4+ Kg3 Nd2 c1B Rg8 Rc8 a8Q Rc7 Nc4 Qe6 Bf5 Rh7 Rg6 Rg7 Bh3 Rc8 Rd1 h1B Qad5 Kh2 Na5 f1B Q8c7 Bh6 d8B Bb2 Ba4 b5 e8N Bb1 Qa7 Rc1 Bb6 Qc8 Rg5 Bhe4 Q5c6 Kh1 Qae7 Nf3 Rd2 Bbd3 Qcd5 Re1 Rc1 Ngh2 Rc7 Ra1 Bbc5 Ne1 Qb7 Bf3 Qbe4 Bb1 Qc2 Bb7 Ndc6 Bd4 Qb2 Bbd3 Bg6 Bde2 Bb1 Bh5 Rd3 Bg6 Qg2+
2R3b1/n1rb1R1R/6QB/1BQN2b1/nq5P/k2Nbpr1/2KQ1nQ1/NQ1B4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 b4 g5 e4 a5 c4 f5 b6 d5 b7 g4 h6 f4 b5 a4 b6 f3 c6 a3 e6 Kd6 c5+ Ke5 h7 Kd4 e5 a2 c7 g3 c6 Kc5 e7 Kb4 e8B d4 e6 d3 e7 g2 Nh3 g1N Nf4 Na6 b8Q Nc5 b7 Ra6 Na3 Ra7 Be2 Ne6 Nc2+ Ka4 Nd5 Bd7 c8Q Nc5 Qg3 Qc7 b8Q Nh3 Qb1 Nf2 Qg2 Qb7 c7 Bh6+ Kc3 Qb5 Qd2 Be3 Bd1 Qb6 Bf7 Qb5 e8Q Ne7 h3 Rg8 h8N Rg5 Ng6 Rg3 Ngf4 Nc6 Qe6 Rb7 Qg6 Na7 Qf8 Qb6 c8R Rc7 Be8 Qb7 Qe1 d2 Nd3 Nb3+ Kb2 Qb4 Qc5 Bg5 Be2 d1B Bd2 Be7 Bh6 Bd8 Qd2 Bg5 Qbc1 Be3 Rb1 Bg5 Na1 Bc2 Bd1 Be3 Ne5 Bd3 Rh2 Bc4 Kc2 Bg5 Rb2 Ka3 Qb1 Be3 Nd3 Bg5 Qe7 Nc5 Qee3 Na4 Qc5 Bf5 Bb5 Bd7 Rh1 Be3 Re1 Bg5 Re7 Be3 h4 Bg5 Nb3 a1B Rf7 Be3 Kc1 Bg5 Rc2 Bc3 Na1 Bd4 Rc3+ Bb3 Rc4 Ba2 Kc2 Bde3 Rcf4 Bc4 Rh7 Ba2 Nf6 Bf7 Nd5 Bg8 Rff7
B1b1RR2/1Nbknb1R/3rRB1r/Q3n1n1/QbB2P1q/8/1QK3p1/1N1R2N1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 b4 d5 f4 a5 h4 e5 c4 e4 h6 g4 b6 a4 h7 d4 b7 e3+ Kc2 e2 f6 e1B h5 g3 b5 g2 h6 a3 b6 a2 f7+ Kd7 c6+ Kd6 c5+ Ke7 c7 Nf6 c6 Ra3 Bb2 Bd2 Bc4 Bg4 c8B Ba5 c7 Nbd7 b8R Nd5 Bb7 Ne5 c8N+ Kd7 Ba8 Bfb4 f8R Qh4 b7 Rd3 Nd6 Ne7 Rbe8 Bc7 b8R Be6 Qh5 Bf7 Rb6 Rd1 Nb7 d3+ Kb3 d2 Re6 Rc1 Bc3 d1B+ Kb2 Bf3 Rh2 Rd1 Kc2 Rd6 Qf5 N5g6 Bf6 Bg4 Qa5 Ne5 Rh1 Rg8 h8Q Rg6 h7 Rh6 Qg8 Bh3 h8Q Bg4 Na3 Bh3 Rd1 a1N+ Kb1 Nb3 Kc2 Nc5 Nb1 Bg4 Qgh7 Bh3 Qe4 Bg4 Qd4 Ne4 Qb2 Ng5 Qh7 Qh2 Qe4 Qg3 Rh5 Qh4 Qed4 Rg6 Rh7 Rh6 Qe4 Bc5 Qf3 Bb4 Qfb3 Kc6 Q3a3 N7g6 R6e7 Bc8 Re6 Ne7 Qab3 Kd7 Qba4+
2r1Bq1R/r3B2n/Bk6/2r1PrnN/1R1Q1Q1K/4B1pb/n1NRQb1B/7N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 d4 Kc7 e4 g5 h4 a5 b4 f5 h6 a4 d6+ Kb6 e6 a3 d5 c4 h5 g4 d7 c3 e7 a2 e8B c2 h7 Nf6 d6 f4+ Kh4 f3 h6 f2 Rh2 Na6 Na3 Be7 Qe2 Ka7 b6+ Kb7 b5 Nb4 Be3 c1R Rb1 a1N Nh3 Rc4 Nc2 Qc7 d8B Ra5 d7 Na6 Rb4 Rg8 h8Q Ra2 h7 Bc5 Be7 Qd6 d8B Bd7 Bc7 Nb3 Qg7 Ra4 h8R Nh7 Qd4 Nc1 Rg2 Bc8 Bb8 Qd8 Bh2 g3 e5 Na2 Qf4 Ka8 b7+ Ka7 b8N Nc7 Nd7 Ne6 Nf6 Kb6 Nh5 Ra7 Qd4 Neg5 Qf4 Ka5 b6 Bd4 b7 Rc5 b8Q Qd6 Bf6 Qf8 Be7 Be6 Qd6 Bg4 Qef3 Bd7 Bd3 f1R Nf2 Bh3 Nh1 Rf2 Qdd5 Rf1 Bdb5 Kb6 Rd2 Rf2 Qe2 Rf1 Beg1 Rf3 Qdc4 Bf2 Qfd4 Rf5 Qf7 Be1 Be3 Bf2 Qfc4 Rg6 Qf4 Rc6 Qcd4 Rc8 Ba6+
6N1/B1r1Nkn1/2Rbn1b1/2R1p3/1rQP4/3Nr3/rB1N2QQ/1Knq1NRB b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 g5 Kd2 c5 Kc2 e5 f4 a5 h4 g4 b4 c4 h6 a4 h7 c3 b6 g3 h5 a3 d6 g2 b7 a2 b5 Qb6 d7+ Ke7 d8R Qc6 h6 Qg6 b6 Ra6 Qe2 Qf6 Rd6 Be6 Qc4 Ra3 Rc6 Bd5 Nd2 Na6 b8B Qf7 b7 Qf6 Ngf3 g1N Ba7 Qe6 b8N Qd7 f6+ Ke8 f7+ Ke7 f5 Ne2 f6+ Kd8 Bg2 Qg4 Nf1 Qe6 Nd7 Ne7 N3d2 Qg4 Bb2 Qh4 Rg1 Qh1 Nc5 Nf5 Nd3 Nc7 Rc1 Bd6 f8N Ke8 Ng6 a1R Ne7 Ne6 Ng8 R1a2 Kb1 Be4 f7+ Kf8 Rc5 Nfg7 Rc2 Qh5 Bh1 Bf5 Ne7 Rg8 h8Q Nc1 h7 Qd1 Rc6 Bg6 Rc5 Ne8 Qf6 Ra4 h8Q Rb4 Qg5 N8g7 Qh2 Rh8 Rc6 Rh3 Qgg2 Rg3 Ng8 Re3 Nh6 Ke7 f8N Kf6 Ng8+ Kf7 Rc5 Ra3 Ra5 Bh7 Qcc6 Na2+ Rc1 c2+ Ka1 Bf5 Ng6 Raa4 N6e7 Bg6 Rb1 c1R Qa6 Rcc4 Rc1 Rc7 Kb1 Qf3 Rcc5 Nc1 Qc4 Ra2 Ra6 Qd1 Rac6
1k2Q3/4N2K/nN1rRPQ1/1BRNrBp1/1nB4Q/5R2/1bb2b2/nbB1qB2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Kd3 Kd7 f4 Kc7 h4 e5 a4 g5 c4 b5 c6 b4 a6 d4 Ke4 b3 c5 d3 a5 d2 a7 b2 h6 Bg7 h7 Bh6 a6 Be6 h5 Qd7 f6 Ne7 f5 Qc8 f7 Bb3 f8R Ng6 Nc3 b1B+ Qc2 d1N Ra5 Bg8 Nh3 Qe6 Na4 Ba2 Nf4 Qe7 Nb6 Qe8 Nfd5+ Kd8 f6 Bc4 Kf5 e4 Rh3 e3 Rf3 Bg7 h6 e2 Rf7 e1B Re7 Nf8 Re6 Nfd7 Qe4 Qe7 Kg6 Nf2 Rb5 Ba2 c7+ Ke8 c8N Kd8 c6 Bb1 Qc2 Nd3 Rc5 Nb4 Qf5 Bf8 c7+ Ke8 Bc4 Bf2 Qe4 N8c6 Bb5 Nd4 Qf5 Rb8 a8B Ndc2 a7 Na1 Bc4 Bc2 Bc6 Rb7 a8B Ra7 Be2 Ra5 Bcb5 Ra6 Bbc4 Nb8 Bf1 Ra5 Bb7 Bb1 Bba6 Rb5 Rd6 Qe1 Nce7 Ra5 c8B Rb5 Nd7 Kd8 Re6 Rb6 Bcb5 Rd6 N7b6 Bc2 Bbc4 Bb1 Bab5 N8a6 Kh5 Bf7+ Qg6 Rg8 h8Q Be8 h7 Rg7 Nf5 Re7 Qg8 Bc6 h8Q Bd7 Ree3 Re5 Nfe7 Bdf5 Qg8h7 Bfc2 Bch3 Rf5 Re6 Re5 Bf5 Nc6 Nc3 Kc7 Ncd5+ Kb8 Qhf7 Ncb4 Qe8+ Rd8 Ng8 Be7 Kh6 Bd6 Nge7 Bc7 Nbc8 Rd6 Kg7 Bb6 Qh4 Bd4 Kh7 Bb2 Rc6 Be3 Rc5 Bf2 Ncb6+
3Q1n2/2rn1p2/P1nB3q/1nQR1KR1/1Q2N1Qb/1B6/3NkbrB/R2bN2Q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kf3 g5 Ke4 b5 h4 c5 a4 g4 d4 c4 h6 b4 h5 c3 e6+ Kd6 e7 b3 e8Q c2 a6 g3 h7 g2 a5 b2 h6 Qg5 a7 Qf6 a6 Bg4 Qe5+ Kd7 d6 Kc6 d7 Qf2 d8Q Qe1 d5+ Kb5 d6+ Kc4 d7 Qb4 Rh5 Qa4 Nd2+ Kb4 Ngf3 b1N Rg5 g1B Ne1 Bh5 Kf5 Qa5 e4 Nf6 Bc4 Be7 Qc5+ Kc3 e5 Na3 e6 Bf2 Qg4 Nb5 Ba3 Rg8 h8B c1N h7 Nb3 Qf8 Qb4 d8Q Na5 Bb3+ Qc4 Bg7 Nac6 h8R Nd7 Rh6 Rb8 a8Q Rc8 Rh8 Rc7 Bh6 Ncb8 Qh1 Nh7 Bg7+ Bf6 e7 Nc6 Bh6 Rg6 e8N Rg7 Qfe7 Nhf8 Nd6 Rg8 Qf4 Bd1 Qg4 Rg7 Rg8 Rg6 Rh5 Rg7 Bf4 B6h4 Qb4+ Kd4 N6e4 Rg6 Bg3 Ke3 Bh2 Qd4 Rg5 Qb6 Rh8 Rg7 Rh6 Rg8 Rd6 Rg6 Rd5 Rg7 Qgg1 Ke2 Qg3 Qe3 Qec5 Rg8 Bb2 Rg6 Be5 Rg8 Bd6 Rg7 Rh5 Qh6 Qgg2 Rg4 Rg5 Rg3 Qh3 Rg2 Qg4+
n2q1QKQ/2r1NR2/Nn3r1b/R1b3BN/2bQ1p2/2R1P3/BNqB2k1/1b3N2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 h5 g4 a5 b4 c5 d4 c4 d6 Ke6 d5+ Kd7 e6+ Ke8 Ke5 a4 d7+ Ke7 g6 h4 e3 a3 g5 h3 b6 a2 b5 h2 g7 c3 b7 f4 b6 c2 g6 Qe8 d8R Bd7 Rc8 Ra5 Nd2 Qf7 Bc4 Qe8 Ngf3 Rb5 Ne1 Nf6 g8Q Rc5 g7 Rh3 Qh8 Rc7 Nf1 Ng8 Qd4 Bb5 Nd3 Qd7 Bd2 c1Q Nb2 Na6 b8N Nf6 b7 Rh6 g8Q Qd8 d6+ Ke8 d7+ Ke7 Kf5 Nd5 Nc6+ Kd6 b8N Rf6+ Kg5 Qd1 e7 Qc2 Bb3 Bg7 Qf8 Bc4 e8N+ Ke6 Kh5 Bh6 Ne7 Nb6 Rg1 h1B Rg7 Be4 Rf7 Nc5 Na6 Nca4 Bc1 Na8 Bd2 Rg6 Nf6 N4b6 Rb1 a1B Ba2 Qc3 Re1 Bb1 Rc1 Qb3 Rc3 Qc2 Ra3 Qc1 Ra5 Qc2 Ne4 Rf6 Neg3 Qe8 d8B Qd7 Nd3 Bc3 Nb2 Bb4 Qh7 Bc5 Qhh8 Rf5+ Kg6 Qd6 Kh7 Rf6+ Qd3 Ke5 Nh5 Qd5 Kg8 Qd4 Qe2 Ke4 Qd3+ Kf3 Qc3 Qd7 Qd4 Kg2 Nc6 Rd6 Bg5 Rf6 Ne7 Qd8 Rb8 Na4 Rb3 N4b6 Rc3
2N2NQ1/4nr2/QQb2Nq1/B1R3Qn/1rP1BBr1/rRp5/4k2R/1KQ1b2q b - - 0 1 illegal: No proof kernel
K2bk3/2Rb1N2/6Q1/N1QR3P/3q1BQn/1r2N1B1/rRBpQQn1/2qr1r2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 a5 b4 g4 h4 e6 f4 a4 c4 g3 h6 a3 c6 a2 c5 g2 h7 Bh6 h5 Bg5 f6 Ra5 c7 Qe7 f5 Kf8 b6 Qd6 c6 Qe7 b5 Ra6 b7 Qf7 Kc5 d4 b6 d3 Ne2 g1R Rh2 e5 Nd2 e4 Nc4 e3 Nd4 e2 Nc2 e1Q Qe2 Qg6 f7 Bf4 N2e3 Be5 Na5 Ke7 f6+ Ke6 f8Q Bb2 f7 Bd7 c8Q Qeg3 c7 Nc6 b8Q Q3g4 b7 Nb4 Rb1 Ba1 Rb2 Ne7 Qh6 Rf8 h8N Nbd5 Qa7 Nf5 b8B Ke7 Rf2 Qf6 Qg6 Nh4 Rf5 Nf4 Rd5 Qfg5 Bg2 Rh1 Be4 Rd1 Qab6 Re8 f8R Rf1 Nf7 Nfg2 Rg8 Rd8 Rg7 Ke8 Qbf6 Qh6 Qff2 Rb6 Rh7 Rb3 Bd2 Ra3 Kb6 Rb3+ Ka7 Qgf4 Bf5 Qd4+ Ka8 Qhf4 Rb1 Bc3 Rb2 a1R Be1 Rd1 Rg7 d2 Bc2 Qc5 Rh7 Bf6 Rg7 Qfd4 Rh7 Bb5 Qcg4 Bd7 c8Q Qcc4 Bf4 Qcc3 Bb1 Qc1 Bc2 Bg5 Bb8 Bf6 Qc5 Rc8 Rg7 Bd8 Rh7 Rc6 Bf4 Rcb6 Qff3 Ra3 Beg3 Rbb3 Qff2 Ra2 Rg7 Bb5 Nd6+ Kf8 Rb7 Bd7 Nf7+ Ke8 Rc7
2rrR2N/2R1qr1n/2R4N/k2rQ1p1/P2BRqQ1/b1B1n3/1R1N2b1/1BK1Q3 b - - 0 1 illegal: No possible last move, all moves rejected
3Q2N1/QK2Q2b/3Bnb2/qk2P1R1/nr2n1BR/p1rRnR2/2qN3N/4BR2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 c5 Ke4 g5 h4 a5 d4 a4 b4 c4 b6 f6 h6 c3 h5 c2 d6 Kc6 d5+ Kb5 h7 a3 e6 g4 h6 g3 d7 g2 e7 Na6 e8N Rb8 d6 f5+ Kd5 f4 e4+ Ka4 Kc6 f3 e5 f2 b5 Ka5 b7 Nc5 b6 Na6 Rh3 Nc5 Be2 f1Q Bg4 Qe2 Bd2+ Ka6 Be1 c1N Rf3 Na4 Nd2 Qh4 d8Q Bg7 d7 Nb3 Qe7 Nf6 d8R Rf8 h8R Nd5 h7 Nbc5 Rg8 Ne6 h8R Ne3 Rd3 Bf6 Rg5 Qg3 Rh6 Rh8 Rh2 Rh3 Rh1 Qf4 Rh2 Rg3 Rh4 Qb4 Rc1 Qa5 Rb1 Ra8 b8Q Qf2 Qbc7 Rb8 b7 Rh3 Qcd8 Qe2 Qc2 Qd1 Qcc5 Qc2 Rf4 Rg3 Ngf3 g1N Nh2 Ne2 Rf3 Nec3 Ra1 Ne4 Rc1 Ra8 b8B Rh3 Bd6 Rb8 Rb1 Rb4 Ra1 Nf8 Rd1 Bf5 Rb1 Bh7 Ra1 Bg7 Nf6 Ne6 Ng8 Bh8 Bg3 Bg7 Raf1 Bf6 Be1 Rg3 Kd7 Rh3 Kc8 Rg3 Qcc7 Kb5 Kb7 Qd1 Qcb8 Rg2 Nb1 Rc2 Qa7 Rc3 Nd2 Qc1 Rg3 Qc2 Rgf3
bn2qq2/2r1N1B1/4Q1R1/r1pr1r2/nQNR1QKb/N1NB1R2/kB2N1P1/8 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 e5 b4 h5 d4 c5 d6 a5 d7 h4 f6 Ke6 g6 Kd5 f7 a4 b6 h3 b7 e4+ Kg4 h2 f4 e3 b5 e2 f5 Kc4 f6 a3 b6 a2 d5 Ne7 d6 Nd5 g7 Qe8 g8N Qd8 Qe1 Kb3 Bb2 Rh7 Nc3 Rh5 Rd1 a1Q Rd4 Na6 b8Q Qb1 b7 Be7 f8B Qh7 f7 Qd3 Bg7 Kc2 f8R Kb3 Rf5 Qb1 Rf3 Kc2 Qc7 Kb3 b8Q+ Nb6 Qbb7 Bg5 Qcb8 Qf6 Q7c7 Bb7 d8N Qd1 d7 Na4 Qf4 Qf8 Nf7 Bf6 Ne5 Qd3 Qeg3 e1R d8N Be7 Qf6 Qb5 Ndf7 Qbe8 Nd6 Ra7 Ndb5 Ba8 Qb7 Nb8 Qgf4 Ra5 Bd3 Bd8 Nc4 Re7 Q6e5 Rc7 Qe6 Rd5 Nge2 Bg5 Ne7 Bf6 Nd1 Ka2 Nba3 Bg5 Qb4 Bf6 Rh3 Bg5 Rh6 Bf6 Rf1 h1R Qfe4 Bh4 Rg6 Rh3 Rff6 Re3 Rf3 Rf5 Qf4 Ree5 Qg5 Rd5 Qgf6 Rfe5 Qf4 Rf5 Ndc3+
1qRBn2n/1r2Q3/k1R3Qb/1p1B1n2/4K1bq/5Q1N/1BP1nQN1/NQ3rR1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Kd3 e5 h4 d5 a4 Kd7 f4 Kc7 f6 b5 f7 Kb7 f5 d4 c6+ Ka6 f6 g4 c7 g3 h6 g2 h5 Nc6 h7 Nge7 h6 Nf5 Be3 Nb8 Nh3 g1N Bg2 Nh4 Ke4 d3 Nd2 Be7 f8Q Bg4 c8R Qc7 f7 Kb7 a6+ Kc6 a5 Bd6 a7 Kb7 a6+ Kc6 Nb3 d2 Bb6 Ne2 Qe7 Nd7 f8Q Ng6 Rg1 Rb8 a8Q+ Rb7 Qf2 Rf8 a7 Nh8 Qb1 d1N Ra6 Ne3 Na1 Nf5 Qb8 Ba3 a8Q Bc1 Qba7 Bg5 Qg7 Rf7 Qg6+ Nf6+ Kd3+ Kd7 Bd5 Ne8 Ke4 Rf8 Bg8 Qb8 Bd5 Nf7 h8N Be3 h7 Bh6 Qg5 Kd6 Ng6 Nh8 Nh4 Rff7 Ng2 Rf8 Kd3 e4+ Kd2 e3+ Kd3 Ned4 Qg7 e2 Qg6+ Rf6 Ke4 e1Q+ Qe2 Qh4 Qf2 Nf7 h8B Ne2 Ra4 Kd7 Rac4 Kd6 Bg7 Nh8 Qa3+ Kd7 Qaf3 Rf7 Qa7 Rf8 Bb2 Rf6 R8c6 Rf7 Bc7 Kc8 Bb6+ Rbc7 Qf4 Qg5 Rf6 Rd7 Ba8 Rd1 Bd5 Qh4 Q4f3 Rf1 Qaa3 Qg5 Qe7 Qh4 Rfc6 Kb7 Re6+ Ka6 Rc3 Rb7 Rc8 Rc7 Rc6 Rb7 Bd8+
1q2bBrR/Q2nB1Q1/1qb2p2/N1NRbKN1/k4n2/6Q1/1R2bP1Q/4r1QB b - - 0 1 legal: proof: d4 b5 h4 c5 a4 e5 axb5 g5 hxg5 c4 dxe5 c3 bxc3 Ne7 c4 Ng8 c5 Be7 Nf3 Bd6 Ng1 Bf8 Kd2 a5 Kd3 h5 Ke4 h4 g4 a4 c4 f6 c6 h3 e6 d5+ Kf5 d4 e4 d3 c5 h2 c7 a3 c6 d2 g6 a2 g5 Ke7 g7 Kd6 e5+ Kc5 g6 Kb4 b6 Bd7 c8N Qe8 b7 Ra6 c7 Rb6 Nh3 Qf7 Nc3 Nc6 b8B Na7 Nd6 Nc8 Bg2 Be7 Ba3+ Ka5 Na4 Bd8 Nc5 Rb2 Ndb7+ Kb5 Na5 Rb4 Qg1 d1B Ng5 Bh5 Rb1 a1Q Rb2 Be8 e7 Qe1 e6 Na7 c8R Qf8 Bd6 Bc7 Rd8 Nc6 Bd5 Nb8 Rd7 Bf7 e8Q Qe3 e7 Be2 Qd8 Qb3 e8Q Re4 Be7 Be5 Qc7 Re3 Rd6+ Nd7 Qa8 Qb8 Qaa7 Be8 Ba8 Qb4 Rd5 Qb3 Bf8 Qb6 Nd3+ Ka4 Bae7 Qb8 Qg3 Q3b6 Nc5+ Ka3 Rhd1 h1B Re1 Bhf3 Rh1 Rh4 Bb7 Rg4 Rh8 Bh1 Rd1 Bc6 Rd5 Bc3 Qh2 Rg2 Qcg3 Be5 Ba6 Rg1 Bd3 Re1 Be4 Rd3 Qgg1 Rg3 Bh1 Nh6+ Ke6 Ba6 Nf7 Be2 g8Q Nf5 g7 Ne3 Qgh7 Rg6 g8Q Ng2 Kf5 Nf4 Q7h4 Rg7 Ng5 Rg6 Qgh7 Rg8 Qg7 Bf7 Nd3+ Ka4 Q4g3 Be8 Nc5+
kb1Q1Rb1/2P2r2/Bq2p3/1NQ2NNr/5q2/1NK4n/BRQnNq1q/6BR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 c4 d5 b4 Kd7 f4 Kc7 h4 Kb7 h6 a5 f6 d4 b6 a4 f7 a3 c6+ Ka6 b7 Ka7 h5 d3 c7 g4 b5 a2 f5 e6 b6+ Ka6 h7 g3 h6 g2 c5 Qe7 c6 Qh4 f6 Nd7 b8N+ Kb5 b7 Kb6 Nc3 Ka7 Qc2 Ne5 Rb1 a1Q Nb5+ Kb6 Rb2 Ng6 Na6 Qaa4 b8Q+ Bb7 c8B Ra7 Nc5 Bd6 f8R Qf2+ Ne2 g1Q f7 Nf6 Nb3 Qaf4+ Kc3 Qgh2 Be3+ Ka6 Qc7 d2 Qd8 d1Q Bg2 Qb1 Bd5 Bb8 Bb6 Rg8 h8N Qbg1 h7 Ne4+ Kc4 Nd2+ Kc3 Rg7 c7 Ra8 Ba7 Qb6 Bc4 Qgf2 Bd5 Q4h4 Bc4 Nf4 Ng6 Nh3 h8N Q4f4 Nh4 Rh7 Nf5 Rh5 Bd7 Bf3 Bc6 Be4 B6d5 Qc6 Bb6 Kb7 Ba7 Qf1 Bg1 Q1f2 Ng6 Ra3 Ne5 Ka8 Nf3 Ra1 Ng5 Rf1 Nbd6 Qb7 Ba6 Bd3 Bdc4 Qbb6 Nb5 Be4 Na5 Bd3 Ba2 Be4 Nb3 Bd3 Ne7 Bh7 Nf5 Bg8 Nfd4 Q4h4 Re8 Qfg2 f8Q Rf7 Nf5 Q4f4 Qc5 Qgf2 Rf8
R1rbQ1R1/1P1b4/q6r/1R1QB3/B1Bb1q2/kRN4n/p3N1R1/2bQK1Nn b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 Kd6 f4 a5 d4 h5 b6 e5 b5 c5 b7 c4 f6 c3 g6 c2 b6 h4 f5 h3 f7 e4 g5 a4 g7 h2 f6 e3 g6 a3 Bb2 c1B Bc4 e2 Ra2 Ra6 Nc3 Be7 f8R Qd7 f7 Nf6 g8R Nh7 g7 Nc6 b8R Qc7 b7 Bf5 Ra8 Bc8 Re8 Bd7 f8N Qb6 Ne6 Ne5 Nf4 Bd8 Re7 Ng4 Re5 Qc7 Bb3 Ng5 Ba4 Qc4 Re3 Nf2 Rg3 Kc7 d6+ Kb6 d5 Kc5 Rh3 Kb4 Re3 Bc6 d7 Ngh3 d6 Rb6 Ba1 Qa6 Rc2 a2 Bb2 Be7 d8Q Bd7 Qe8 Bd8 Ba1 Ka3 Re5 Rb4 Rb5 Rc4 Rd2 Rc8 Rd3 Be6 d7 Rh6 Rg3 Bf5 Rg2 Bg4 Rf8 Be6 g8B Bg4 Bc4 Bf5 Nf3 Bg4 Rf1 h1Q Rg8 Qh2 Ng1 Nh1 Rf3 Bf5 Nh5 Qf4 Ng3 Bb6 d8Q Bd4 Qd5 Bd7 Re3 Bb2 Kd2 e1B+ Ke2 Bf2 Kf1 Bf6 Ng3e2 Bc1 Rd3 Bfe3+ Ke1 Bed4 Ne4+ Bc3+ Rd2 Bce5 Rdb2 Bc7 Rb1 Bfd8 Be5 Bb6 N4c3 Bd4 R1b3#
NnR2N1q/b1n3QB/5N2/Qn1B4/k3r2R/BN1p1rNq/K2P1n1Q/2Rn4 b - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 g5 a4 d6 e4 g4 exf5 g3 b6 Bd7 b5 Nh6 b7 Bc6 b6 Bb5 axb5 Qc8 hxg3 Qd8 g4 Ng8 g5 Bg7 Ra4 Bh6 Ra1 Bf8 g4 Kd7 f4 a5 f6 e5 g6 c5 g7 h5 f7 a4 g5 e4 f5 a3 g6 d5 f6 h4 Qa4 h3 Kd1 h2 Kc2 e3 Kb3 e2 Nc3 e1Q Qa5 d4 Bd3 a2 Nge2 Qh4 Ba3 Qh3 Ng3 Ne7 g8B Rh4 g7 Re4 Na4 Nd5 Rac1 a1N+ Ka2 c4 Nc5+ Kd6 Bh7 c3 g8N c2 Bc4 Nc7 Bd5 d3 Nb3+ Kd7 Bc4 Be7 f8Q Bc5 f7 Qf6 Qh6 Qh8 Qg7 Ra7 f8N+ Kd6 Rhd1 h1N Bd5 Nf2 Nf6 Ra8 Rh1 Ra6 Qb4 Ra4 Rh2 Rf4 Qc3 Rae4 Qa5 Rf3 Rhh1 Qf1 Rh4 Qh3 Re1 Nba6 b8N c1N+ Kb2 Nc2 b7 Ne2 b6 Ncd4 Rc1 Ndb5 Nbd7 Nec3 b8Q Ncd1+ Ka2 Qf1 b7 Qh3 Qa7 Nb8 Nb6 Re8 Na8 Re4 Bdg8 Kc6 Bc4 Nd7 b8R Be3 Rc8 Nb8 Qc3 Bc5 Qe5 Be3 Qa5 Ba7 Qac3 Nd6 Bd5+ Kb5 Qf4 Ka4 Qce5 Ndb5 Qff5 Qf1 Qh3 Qh1 Qh2 Qg2 Qc3 Qh3 Qa5#
qn2b1r1/NR6/q4Q1b/kQ1bNq1Q/B7/p3BR1Q/P6q/Kn1RN1QB b - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 c5 fxg5 c4 h4 c3 bxc3 Nh6 c4 Ng8 c5 Qf6 Bd2 Qb6 Bc1 Qd8 g6 a5 g7 b5 g4 Bb7 h5 Ra6 g5 Rg6 hxg6 Bc8 Kd2 f5 Kc3 d5 Kb2 Kd7 c4 Kc6 e4 h5 e6 f4 e5 f3 e7 b4 e8Q+ Bd7 e6 d4 e7 d3 Be3 b3 Bg2 h4 Na3 h3 Nc2 h2 Ne1 a4 Rb1 d2 Ka1 Nh6 g8Q a3 g7 Na6 g6 Ng4 Qgf7 Kc7 g8Q f2 g7 f1B c6 Bd3 c5 Nf6 Qdh5 d1Q Ngf3 Nd5 Ne5 Qe2 Qf6 Nb8 Qge6 Ba6 g8Q Bh6 Qeh3 Bc4 Rg1 Qf1 Bh1 Nc3 Rg3 Bce6 Rd1 Qa6 Rf3 Nb1 Qgg5 Rg8 Qg1 Kc8 c7 Kb7 c8N Bd5 c6+ Kc7 Qeg6 Be8 Na7 Qdc8 Q5f5 Qcb7 Qgh5 Qa8 Rd4 Kb6 c7+ Ka5 c8R Qe2 Rd1 Qa6 Bg2 h1Q Rc7 Qh2 Rb7 Bdc6 Qd3 Bd5 Bh1 Nd2 Qf8 Ne4 Kb1 b2 Qf6 Nd2+ Kc2 Bg6 e8B Bgf7 Bc6 Be8 Ba4 b1Q+ Kc3 Qb4+ Kc2 Qe4 Kc1 Qf5 Qc4 Ne4 Kb1 Nc3+ Ka1 Nb1 Qb5+
R2n4/b1bRRp2/1nb2R2/1NQ1n2K/1kB2PNB/R1r2n2/1B2QNr1/2Qb4 b - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 axb3 Nh6 b4 Ng8 b5 Ba6 Rh2 Bb7 Rh1 Bc8 d4 c6 d6 Bg7 d5 Kf8 e5 Qd7 e6 Bh6 exd7 Kg7 Qd2 Kg6 Qd1 Bf8 Ke2 Kf5 Kf3 Ke5 Kg4 a5 b4 h6 f4+ Ke4 g6 e5 b6 c5 g7 a4 b7 a3 b5 c4 b6 c3 Kh5 c2 d8R a2 g4 Ra7 d7 Ra3 g5 Bc5 d6 Rc3 g6 Ne7 g8N Nbc6 b8R Nd5 b7 Nb6 Re8 Nd8 Qe2+ Kd5 g7 e4 Ra8 e3 Bb2 c1N b8Q Nd3 Re7 Kc4 Qa7 Kb4 Nf6 Rg8 Nh3 Ne5 Nf2 Bb7 N6g4 Bc6 Na3 Ba4 Rg1 Bd1 Nb5 Bd4 Qd2 e2 Qc1 e1N Bc4 N1f3 Rg3 Be3 Rb1 a1B Qa2 Rh8 g8Q Rh7 Rh3 Rg7 Qf8 Bc5 Ne3 Rg2 Neg4 Nb7 d8R Bd4 Rde8 Nd8 d7 Bc5 Re6 Bd6 R8e7 Bc7 Qa6 Nd4 Kh4 h5 Kg5 h4 Rf6 Ndf3+ Kh5 Ng5 Rd3 h3 Rd2 h2 Rdd6 Nde6 d8B h1B Rdd7 Ngf3 Qb7 Bb8 Qe4 Ba7 Qe2 Na4 Bb6 Nd8 Bd4 Nb6 Be3 Nb7 Bd2 Nd8 Be1 Nb7 Qc8 Nd8 Qc5+ Ka5 Rg6 Nd3 Qc7 Kb4 Nd6 Ng5 Nb5 Rg3 Rf6 Bb7 Nh1 Rg2 Bh4 Nf3 Qc6 Rc2 Be5+ Bb2 Qd5 Bc6 Ra1 Bd4 Ra3 Bc5 Qce3 Bd6 Nhf2 Bc7 Bb2 Nde5 Qc1 Rc3 Qc5+
N1nQ2qR/1K1Q1RB1/2r2R2/Nk1pb2p/1n2b3/1b1B2PN/1BQ3r1/1R1r2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 d5 Ke3 Kd7 Kd4 f5 c4 h5 e4 a5 b4 a4 c6+ Kc7 g6 Kb6 g7 a3 e6 f4 g3 f3 c5+ Kc7 e5 a2 e7 f2 e8Q Ra4 e6 Qd6 e7 Qd8 Nh3 Be6 b6+ Kc8 c7 Kb7 c8Q+ Ka8 b7+ Ka7 c6 Kb6 c7 Ra5 b5 Ra3 Nd2 Ka5 Kc5 Rh6 b6 Rf3 Rb1 a1R Bb2 Rhf6 Qcd7 Ra2 c8R Ra1 Bd3 f1B Rc7 Na6+ Kc6 R6f4 b8R Bg2 b7 Qc8 Qc2 Rf2 Rhg1 Rf6 Qed8 Be4 e8N Rg2 Nc4+ Kb4 Ra8 Bd6 b8B Be5 Ba7 Rh6 Bad4 Ne7+ Kb6 Rg6 g8R B6f5+ Ka7 Bg4 Rf8 Rc6 Rf6 Bd1 Bdc3+ Kb5 Rb8+ Kc5 Ka8 Nb4+ Ra7 Qa6 Nc7 Qa4 Kb7 Nc8 Na8 Kb5 Bd2 Qa3 Bh6 Qc3 Bg7 Qd2 Qc3 Bb3 Qc2 Qg5 Q8c7 Nb6 Rh8 Nc8 Qcd8 Qg6 Rbf1 Rb1 Ra1 Rd1 Rb1 Qe8 Rf7 Qf8 R1f6 Qg8 Na5+
KR1N1r1q/1Pk4p/nrp2Q2/2QN4/5BNB/1BbN3R/r6N/n1R1b1Qb b - - 0 1 illegal: No possible last move
nk3b2/1R4NQ/2QB2B1/q2rQb2/Rq3p2/1RQNB3/1Q1P1p2/KN1n1r1b b - - 0 1 illegal: Other
1R1Qq3/n1BQr1b1/1B5N/3B1K2/2b1pB1R/7P/kpR2qnN/N1rr1Q1B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 c5 Kf4 b5 a4 e6 d4 c4 f6 g6 h6 c3 a6 c2 d6 b4 d7 b3 h7 b2 a7 Nh6 d5 Nc6 d6 Bg7 a5 Nb4 a6 Rg8 h8N+ Kf8 f7 Rb8 a8B Rb5 a7 Nc6 Nf3 Ng4 Nbd2 Qa5 d8B Nh6 d7 Qb6 Bc4 Rd5 Nb3 Ba6 Bc7 Ke7 f8R Nf5 Rb8 Qb5 Nf7 Re8 Nh6 Ne3 d8B+ Kd7 h3 Re7 Nh2 e5+ Kg5 Ke6 f4 Ng2 Ra4 Nb4 Bd2 c1R Na1 Qe8 Bb6 Kd6 f5 Nc6 f6 Bb5 Ba2 Bc4 f7 Rd3 f8Q Kd5 Kg4 g5 Kf5 g4 Bdc7 g3 Bf4 Rd2 Bb7 Rd4 a8Q Rd3 Qf1 Rdd1 Ba5 Kd4 Qf7 Na7 Bab6+ Kc3 Bd5 Bb3 Rd4 Bc4 Bb1 Kb4 Bbe4 Ka3 Qe6 Ka2 Qd7 Ne1 Bf3 g2 Re4 g1Q Bg2 Qe3 Rg1 Rb1 Bh1 Rbc1 Rg2 Qg1 Rc2 Qf2 Qb7 Ng2 Qbc8 Qe1 Qcd8 Qd2 Re3 Qf2 Rg3 e4 Rg4 Qe3 Rh4 Qc5 Re2 Qf2 Rc2
1kr1NnBN/7Q/K7/P1Q5/Q2p4/B1R1Rr1b/2qpBb1n/R1qRRNb1 b - - 0 1 illegal: Other
4N1NQ/3rN3/NrrQp1K1/B3q3/Q2R1p2/Nbq3BR/P3B3/nn1Rb2k b - - 0 1 illegal: No proof kernel
qN1b1k2/1bQQ2RQ/R1PNR2K/B2B1r2/1prp3B/1q5N/1n2Nn2/4nN2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Ke3 b5 Kf4 g6 Kg5 e5+ f6 e4 f4 e3 a4 e2 h4 e1Q c4 Qee7 c6 Nd7 c7 Bg7 f5 Nh6 a6 Ne5 c5 Bb7 c8N Qb6 a5 Qbd8 a7 Qb6 a6 Qf8 f7+ Kd8 c6 Qfc5 f8N Ke8 f6 Nd3 f7+ Kd8 Nd2 Bd4 Nh7 Nb4 f8N Ke8 Bc4 Ng4 h6 Rb8 a8Q Rg8 a7 Nf2 h5 Nbd3 Ra6 Qb4 Nd6+ Ke7 Nd7 Bc5 Ne2 Qc3 Re1 Rgf8 Nf1 Qba5 Bd2 Rbc8 Qb8 Rh8 a8R Nb2 R8a7 Qb3 Qc7 Rcf8 Bb4 Qa1 Ba5 b4 Qd4 Bb6 Qg4 d4 Bd5 Rf3 Qh3 Rd8 Nb8+ Rd7 Nf8 Rf4 h7 Rf5+ Kh6 g5 h8B g4 Nh7 g3 Ng5 g2 Bf6+ Kf8 Qg4 g1N Nh3 Rf7 Bh4 Re5 Qgd7 Rff5 Kg6 Re3 h6 Nf3 h7 Rc3 Kh6 Rc1 Bg8 Qaa3 h8Q Rc4 Qhh7 Qaa2 Bd5 Qaa3 Qcc8+ Bd8 Qcc7 Qaa2 Neg1 Qaa3 Re6 Ne1 Ne2 Qaa4 Rb6 Qb5 Raa6 Qc5 Rb5 Qa7 Rbb6 Qa8 Ra7 Rc2 Rba6 Rc4 Qb6 Bc8 Qdb7 Bd7 Qc8 Qc2 Rc7 Qb3 Qcb7 Bc8 Rg7 Rc5 Q7a7 Rc4 Qd7 Bb7 Qbc7
1n1r3Q/nBQ2Q2/NRPQ2qq/r4bpk/1bQ4p/4N3/2R1rNBK/B6R b - - 0 1 illegal: No proof kernel
R1N3q1/3qBBBP/k1bNr1N1/4Qr1B/1R2B1p1/1n2K1n1/bb1p3Q/1QR5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 h4 d5 e4 Kd7 b4 Kc7 c4 Kb7 h6 a5 h7 f5 e6 f4 b6 g4 b5 f3 h5 f2 e5 a4 e7 d4 e8Q a3 h6 a2 e6 d3 e7 Ra5 c6+ Ka8 c5 Na6 b7+ Ka7 b8R Be6 c7 Nf6 c8B Bg7 c6 Nc5 c7 Bd5 Be6 Rf8 h8B Nb3+ Ke3 d2 h7 Nd4 Nc3 Nd7 Bf7 Ba8 Bd3 f1B Nh3 Bc6 Nf4 Bf6 Be4 Nb3 b6+ Ka6 c8N Qc7 b7 Qe5 Bg7 Qd5 Ng6 Bc4 Ba3 Ndc5 Qb1 Qd7 Nb5 Bb2 Nbd6 Rb5 Rc1 Rb6 Bfd5 Rf5 Bf7 Na4 Qh8 Nc3 e8B Ne2 Bb4 Ng3 Bc5 Ka5 Ra8+ Ra6 b8Q Be6 Rc4 Bed5 Rb4 Bc4 Qf1 B4d5 Rc1 a1Q Qd3 Qa2 Qb1 Be6 Bh6 Bed5 Qe5 Bc4 Bg7 Be6 Na7 Rb6 Qc7 Ka6 Qb8 Bed5 Nac8+ Qa7 Nb5 Ne2 Qed6 Nbd4 Be6 Bb7 Qh2 Ng3 Nh8 Rd6 Bh5 Bbc6 Bg8 Rh6 Qe5 Bc4 Rb8 Qd7 Be7 Bf7 Nbd6 Qae6 Bef6 Qee8 Be7 Ba2 Bgf7 Re6 Ng6 Nb3 Qh4 Qed8 Qh2 Qg8 Ra8+
1B4BB/1n5p/nqkp1R1K/QN5R/3Qr3/1qP1Qq2/N5bB/Br1Nb1R1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 e5 Ke3 a5 b4 a4 g4 a3 f4 e4 f6 a2 c6 Qe7 g6 Ra3+ Nc3 Qd6 g5 Na6 b6 Nh6 c7 Be7 g7 Qe6 g8Q+ Bf8 f5 Nb8 Kf4 e3 b5 e2 g6 e1Q Kg5 Q6e2 b7 Qe7 g7 Rb3 b6 Qd6 f7+ Ke7 f6+ Ke6 Bc4+ Ke5 Bb2 Qc5 Nge2 Qd4 Rh5 Kd6 Nc1 Be7 f8B Rb4 Qe6+ Kc5 g8Q Qd6 Bg7 Qdd2+ Qe3+ Kc6 Qd8 Re8 Bh8 Na6 Bg8 Qdf2 Qdd4 Bd6 f7 Re4 f8R Nf5 Rf6 Qd1 Rb1 a1Q N1a2 Qd3 Rg1 Qb1 Ba1 Qf3 Nd1 Qc4 c3 Rb2 Rf8 Bg3 Rf6+ Nd6 Kh6 Bh4 b8B Qa4 b7 Be1 Qf8 Qb4 Qe7 Qb6 Qee5 Qc2 Qf5 Qcb3 Qa5 Rb1 Ba7 Q6b5 Bc5 Qb6 b8B Qe6 Bb4 Nb7 Bd6 Qeb3 Bf4+ d6 Bh2 Bh3 c8N Bg2 Na7+ Kd7 Nb5 Kc6 Bf7 Bd2 Be6 Be1 Bg8
2K5/N4npn/R2Q4/2Nq4/B1qB4/kpRbr3/1NP1BR1R/bQ1RqQ1r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 b5 Kf3 e5 Kg4 Ke7 h4 d5 a4 e4 f4 e3 a6 d4 a5 e2 a7 e1Q a6 d3 c6 Kd6 h6 Kc5 h5 Kb4 h7 d2 h6 Qde8 c7 Q8e4 Rh2 Qb7 Nh3 Qe6 Ng5 Qe8 Ne4 Qe6 Nc5 Qbd5 Nc3 Bb7 c8N Nd7 Be2 Qde5 Bb2 Nb8 Qb1 d1Q Rf2 Bd5 N3a4 Qc1 Bd4+ Bb3 Nb2 Q6d5 f6 Qee3 f5 Qee5 f7 Qee3 f6 Be7 f8Q Nd7 f7 Qg2+ Kf5 Bf6 Qd6 Qgf1 f8Q Rb8 a8B Qcd2 a7 Bc4 Bc6 Ne5 a8R Nf7 Na7 Re8 Rc8 Re4 Ra6 Bd3 Bd7 Be5 Ke6 Nf6 Ke7 Qf4 Be8 Qfe1 Bd7 Ng5 Kd8 Re3 Rc7 Qe4 Kc8 Nf7 Be8 Qc3 Rcc6 Qc4 Bd7 Rg8 h8R Qf3 h7 Qfd5 Rab6 Ka3 Ra6+ Qa5 Rc7 b4 Ba4 b3 Rd7 Qe1 Rd8 Nh6 Qf7 Re8 Rf8 Rh3 h8R Rh1 Rh2 Nh7 Qf1 Re7 Rff2 Nf7 Rhf8 Nh8 R8f3 Nf7 Be3 Bc3 Bd4 Re5 Nd1 Ba1 Nb2 Bg6 Rd3 Re3 Rc3 Bd3 Bf6 Bf5+ Qe6 Qf3 Rd1 Bd3 Qd6 Qfd5 Bd4
2B1n3/1B1Q2p1/1K1P2Bk/4n2q/1NQBrp2/1br2R1N/1bR1B2q/n1Q3NR b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 f5 Ke3 Kf7 Kd4 b5 a4 b4 e4 c6 h4 b3 a6 b2 h6 Kg6 a7 f4 h5+ Kg5 d6 Qd7 Kc5 Qe7 d4 Bg4 d5 Qf6 a5 Ne7 a6 Qe6 h7 Ng8 h6 Qd7 e6 Ne7 e5 Nc8 e7 Nb6 e8B Qf5 e6 Nc4 e7 Be2 d7 Nd2 d8N Bh5 Ra3 Bf7 Be2 Qd7 d6 Qg4 Rf3 Be6 Bg6 Ne4+ Kb6 c5 e8Q c4 Nc6 c3 Nb4 c2 Nd2 b1Q Bb2 c1N Qd7 Bb3 Bd4 Nf6 Qf1 Rg8 h8R Nc6 h7 Qc2 Nh3+ Kh6 Qd1 Rc8 a8B Re8 a7 Ne5 Bb7 Qh5 a8B Be7 Bc8 Rgf8 Bab7 Bd8+ Qc7 Re6 Qg1 Ne8 Qe3 Bf6 Qc4 Rf7 Qec3 Rc7 Qa1 Ncd3 Qc1 Ne1 Rf8 Rc5 Rf7 Qa2 Rc7 Nc2 Rc6 Qa4 Rc7 Qd7 Rc6 Na1 Rc7 Qf7 Rc6 Qg8 h8Q+ Qh7 Qg8 Re7 Qcf7 Re6 Qd7 Rc3 Rc5 Ng4 Qgf7 Re4 Qc4 Ne5 Qg8 Rce3 Rc2 Rc3 Qc4 Qh8 Ng5 Qh2 Nh3 Qh7 Bf7 Qf5 Bg6 Qh5 Bc5 Rce3 Rff1 Nc6 Nf3 Bb2 Bd4 Rc3 Nfg1 Ne5 Rf3
1NQr4/pBqRPNn1/r1B5/4N2q/p1R4k/3Q1QBb/B1B2b1r/1K3Rn1 b - - 0 1 illegal: Other
Q2b3N/3Bk1PQ/2pqNn2/4B3/1Rbp1N1b/B4K1n/Q1R1r1Q1/2rQ2Rb b - - 0 1 illegal: No proof kernel
b1kb1rq1/1n1BnpR1/1p5N/B1P4r/N4N2/R1BQb1Q1/3R1B1Q/2KBb3 b - - 0 1 illegal: No proof kernel
b1rr3k/1pR3B1/n4np1/1N1N1b2/K1QQ1Q2/1N2qB2/B1nn2PQ/1R3Q1R b - - 0 1 illegal: Other
2q1N3/1N2r2q/5k1r/B2pn3/Q1NR1p2/1qnR2bQ/1N1PB1Qn/2RB2NK b - - 0 1 legal: proof: g4 h5 gxh5 e5 c4 b5 cxb5 e4 b6 d6 a4 e3 b4 Qd7 a5 Rh7 a6 Ke7 b5 Bb7 axb7 Rh8 fxe3 Qd8 e4 Kd7 e5 Ke8 Kf2 Ke7 Kg2 g5 e4 a5 h4 c5 h6 f5 e6 g4 h5 c4 h7 f4 e5 a4 h6 a3 Qa4 d5 Bb2 c3 Rh3 g3 Kh1 c2 Bc3 c1Q Ba5 a2 Nc3 Ra6 Be2 Qc2 Nd1 Qf5 Nb2 Ra8 Rc1 Nc6 b8R a1Q b7 Ra6 b6 Ke8 e7 Kf7 e8B+ Ke7 e6 Qe5 B8h5 Kf6 e7 Ra7 e8N+ Kf5 Rc8 Qa2 b8N Re7 b7 Qec7 Nd7 Nf6 b8Q Ne4 Nc5 Nc3 Nb7 Qb3 Qa7 Bg7 Qf2 Bd4 Qg2 Bf2 Bd1 Ke6 Bhe2 Ne5 Ra8 Qdd7 Rc8 Qb8 Rc4 Qbc8 Rd4 Qdc7 Ned6 Kf6 Ndc4 Rg8 h8N Rg6 h7 Rh6 Nf7 Be1 Qe4 Q7d7 Nfd6 g2+ Kh2 Bh4 Rhd3 Qf5 Qf3 Qg6 h8Q+ Qg7 Qhe8 Qh7 Qh3 Be1 Qg8 Bh4 Nf3 g1N Kh1 Bf2 Qg2 Bg3 Ne1 Ngf3 Ne8+ Kg6 Re4 Kg5 Red4 Nh2 Nf3+ Kg6 Ng1 Kg5 Ng7 Kf6 Ne8+
qB1bk2Q/1RRbpN2/nR1B2N1/NnN5/2q1q2Q/7n/1p1KP3/N2BQ1r1 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h4 a3 bxa3 Nh6 a4 Ng8 a5 Bg7 Na3 Bh6 Nb1 Bf8 g4 b5 g6 Bd7 g5 Qc8 g7 Ra6 h5 Rg6 hxg6 Qd8 Nh3 Bf5 Ng1 Bc8 a4 c5 d4 h5 a6 f5 a7 c4 a8Q c3 a5 f4 a6 h4 d6 c2 d5 b4 a7 b3 Bh3 f3 Na3 f2+ Kd2 f1Q Qe1 b2 Bf5 h3 Nf3 h2 Nh4 Qb6 d7+ Kd8 Ra2 Nf6 g8Q Qc6 g7 Qa6 g6 Bb7 Qh7 Qh3 g8R Qf3 g7 Qf2 Ng6 Qg2 Qhh4 Kc7 d8N Qf3 d6+ Kb6 d7 Kc7 Nf7 Qf1 d8B+ Kc6 Bc7 Qg2 Bd6 Nd5 Be6 Nc3 Bb3 Kd7 Rf1 h1N Rf6 Rh7 Rh8 Bc8 g8N Rg7 Re6 Qgb7 Nf6+ Kc6 Nd7 Nb5 Nc5 Nf2 Rh6 Rg8 Re4 Bg7 Rc4 Be5 Rc3 Nd7 Qb8 Nh3 a8N Rg7 Nb6 Qaa8 Nbc4 Bh2 Ne4 Nc5 Na5+ Kd7 Ba4 Ne6 Rc7+ Ke8 Nc5 Qe4 Rc6 Qf5 Bf4 Qa6 Nge5 Rg4 Nab7 Nf2 Ke3 Bg3 Bd2 c1Q Bd1 Bh2 Nc2 Nh3 Na1 Qa8 Ra7 Kf8 Na5 Nec7 Rb7 Qc4 Rcb6 Rg5 Rhc6 Rg1 Bc1 Na6 Ng6+ Ke8 Qe5 Rg5 Qd4 Rg4 Bb8 Bc7 Qe5 Bd8 Rcc7 Rg1 Qg7 Qa2 Qgh7 Qfe6+ Kd3 Qc6 Bf4 Bd7 Kd2 Qe4 Bd6 Qac4 Qh8+
3R4/2K1RBr1/7k/2Q1pNrp/1nBRQnQ1/1b3r1P/1BQ3nN/1q1QN1n1 b - - 0 1 legal: proof: f4 d5 d4 g5 fxg5 b5 a4 Bg7 axb5 Bf8 c4 Bg4 e4 Bc8 c5 Bg7 exd5 Be5 Ra2 Bh3 Ra1 Bd6 cxd6 Bc8 Kd2 Kf8 Kd3 Kg7 Kc4 f5 Kc5 h5 b4 e5 g4 a5 b6 f4 g6 a4 h3 c6 d7 f3 Kd6 f2 g5 a3 b7 a2 b5 c5 b6 c4 Qg4 c3 Bc4 f1N Nd2 c2 Ndf3 Nf6 Ne1 Nh7 Bb2 c1N Ngf3 Qg8 d8Q Ng3 Nh2 Nf8 Qe7+ Qf7 Kc7 Nc6 b8Q Nh7 b7 Nce2 d6 Rd8 d5 Be6 d7 Rf8 d8Q Nf1 d6 Ra3 d7 Nd2 Qc5 Ra6 Qa8 Qf1 b8Q Nf6 Qbc8 Nb4 Qae4 Nf4 Rg1 Nf3 Rd1 a1R Rd4 R1a5 Rg3 Ng1 Rg2 Kg8 g7 Bd5 Rc2 Ng2 Rf2 Kf7 g8N Kg7 g6 Rb6 Ne7 Kh6 g7 Ra7+ Qb7 Qd3 g8B Qb1 Bf7 Be6 Qc2 Nfd5+ Kb8 Ndf4 Kc7 Rg8 Rfd2 Ra3 Qbe4 Rg7 Rd1 Rf3 Nf5+ Kh7 R1d3 Bd5 Ra3 Rbg6 Ra6 Rg5 Re6 Bc6 Re7 Ba4 Qd1 Bb3 Qc8 Nh4 d8R Nhg2 Nh4+ Kh6 Qcf5 Qc1 Qec2 Qa1 Qfe4 Qb1 Nf5+
2rR4/1R2KpQ1/BNN5/N1B5/1Q1RnNnn/3q2pq/k3QPn1/bN2Bb2 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 h5 cxd5 b4 gxh5 b3 d6 Kd7 axb3 Rh6 b4 Ke8 b5 Rh8 d4 Kd7 e5 Ke6 d7 a5 d5+ Kf5 Bc4 Ra6 Bf1 Rd6 exd6 Kf6 Nd2 Ke5 Ke2 Kd4 Kf3 e5 Kg4 g5 Kf5 c5 h4 a4 b4 Kc3 b6 c4 b7 g4 h6 g3 b5 a3 h7 a2 h5 e4 h6 e3 b6 e2 Ba3 e1Q Nh3 Be7 Rb1 a1N Bc5 Nc6 b8Q Ba6 b7 Qa5 d8N Nc2 d7 Bf6 d6 Qa3 Nf4 Ne5 Nc6 Be7 d8N Qb3 d7 Bf6 Na5 Ng4 Ndc6 Be5 Rg1 N8f6 Be2 Rc8 d8R Qa3 h8B Ne4 h7 Qf1 Rb5 Qb3 Nb1+ Kb2 Bf6 c3 h8Q Ne1 Qg7 Qh3 Qd2+ Nc2 Rd1 Ka2 Qd3 Ne1 Rb4 c2 Qb5 Ba1 Bc3 Bb2 R1d4 Nf3 Be1 Ba1 Qbe5 Nc3 b8N Nh4+ Kg5 Qa3 Nd7 Qb3 Qa4+ Qa3 Rb7 c1N Nb6 Nd3 Ng2 Nf4 Qb4 Nh2 Kf6 Ng4+ Ke7 Bb5 Bf3 Bf1 Be2 Qb3 Qe3 Ne4 Ba6 Qd3 Qe2+ Qc2 Ne3 Nfg2 Ned5 Qd2 Nf4 Qc2 Qe3 Qd3 Qe2+
5Q2/1Nr1r3/2pr1BR1/1Rb3N1/np1RQb2/b1n1NK1b/1P1QR1BR/4B1k1 b - - 0 1 legal: proof: g4 d5 e4 b5 a4 f5 exf5 h5 gxh5 e6 c4 Ba3 cxd5 Qd6 a5 Qb6 axb6 Ke7 Ke2 Kf6 f4 a5 d4 g5 h4 e5 b7 a4 h6 e4 h7 e3 h5 c6 d6 g4 d7 g3 d8R g2 h6 Ra7 d5 Bb4 d6 a3 d7 a2 Qd2 Ra5 Nh3 g1B Na3 Bh2 Bg2 Ra4 Re1 Ne7 Kf3 e2 Nc2 Ng6 Ne3 Na6 b8R Re8 h8R Ba3 h7 b4 Ng5 Nc5 Rb5 Re7 Rdg8 Ra7 d8N Bg1 Nb7 Na4 Rd8 Rc7 Rd4 Ne7 Rg8 Nd5 h8B+ Rg7 Rb1 Ndc3 Ra1 Bh2 Rh1 Bg3 Rh2 e1B Re8 Bef2 Rg8 Ke7 Rb1 Rf7 Rg6 a1R Bg7 Rf6 Bh8 Rd6 f6+ Kd7 f5 Bf4 f7 Kc7 f6 Bh3 f8Q Kd7 Na5 Rc7 f7 Bg1 Bf6 Bf2 Nh7 Ke6 Nb7 Bg1 Qg7 Bf2 f8Q Bg1 Nd5 Kf5 Qge7 Bf2 Ng5 B2e3 Rc4 Ba7 Rd4 Bc5 Kf2 Kg4 Ne3+ Kh4 Kf3 Ne2 Ke4 Kg3 Qe5 Kf2 Qee8 Kg1 Kf3 Rh7 Qe4 Rhd7 Qc3 Rc7 Bd2+ Nc1 Be1 Na2 Qcc2 N2c3 Rbd1 Rb1 R1d2 Rd1 Re2 Re6 Rc4 Rdd6 Rd4 Ree7 Qd2
NB5R/7Q/1r2n1p1/1R2QQN1/1p2q2r/n1Nk2P1/RbBpN1N1/b2B2Kn b - - 0 1 illegal: No extended proof kernel
1b5B/1Q1RnK1p/Nr3nNp/1N3N2/Nb3Q1P/2RBRpr1/1q5b/1k1B3Q b - - 0 1 illegal: Other
4qRK1/3r2p1/4R2B/Bp5p/2PRN1k1/1QQnR1bR/1N2B1bn/2N2Qrr b - - 0 1 illegal: No proof kernel
1N2q3/BP3B1r/1p1Rn1bp/3rQ1N1/1R2pN2/2NNK1bQ/4RB2/1n1Qn1k1 b - - 0 1 illegal: No possible last move
2r3b1/1B1Qp1rQ/3N1n1r/RB2N2Q/1p2n1Rp/kP2BQ2/2Q4R/1qn2KN1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 exf5 g5 hxg5 d4 a5 d3 cxd3 Bg7 d4 Bf6 d5 Bg7 Ra2 Bd4 Ra1 Bb6 axb6 Kf7 Qb3 Kf8 Qd1 Ke8 g4 Kd7 f4 Kd6 d4 a5 g6 c5 f6 h5 b7 h4 f5 a4 b3 b4 g7 c4 g5 c3 f7 c2 f8N a3 f6 a2 g6 Ra3 f7 Na6 b8Q+ Qc7 Qb5 Qa5 Be3 c1R Nc3 Nc7 Rh2 Na6 Ne4+ Kc7 d6+ Kd8 d5 Rc3 d7 Kc7 d8R Be6 Nd6 Rc6 Qc2 Rh6 Nd7 Nc5 f8Q Ne4 Qf3 Ngf6 Ne5 Bg8 Be2 Qa7 Kf1 Ra5 Qbc5 Qb7 Bb5 Qc8 Rf8 Qf5 Ba4 Ra8 Qb5 Rc8 Qbe2 Rc5 Qed1 Kb6 Re8 Bf7 g8Q Be6 Qh8 Bg8 g7 Qg6 Qh7 Qf5 Rc1 a1N Rd8 Qg6 Rd7 Qf5 Ra7 Qg6 Ra5 Qf5 Qce2 Nc2 Qdd3 Nd4 Rc4 Qg6 Qdc2 Qf5 Qed1 Ne2 Rd4 Qg6 Qh5 Nc1 Qdf3 Ng5 Rg4 Nge4 Nb5 Qf5 d6 Qg6 d7 Qf5 Nc4+ Kc6 Ne5+ Kd5 Nd6 Qg6 Bf4 Kd4 d8Q Rc3 Qd7 Rd3 Qcf2+ Kc3 Be3 Rd2 Q2e2 Kb2 Qd1 Ka3 Qc2 Bf7 g8B Rg2 Ke1 Bc4 Bd5 Rg3 Bb7 Bg8 Kf1 Qf5 Rf4 Rg7 Rg4 Nc5 Qg2 Qb1 Qgc2 Nce4 Bb5#
NR3qNN/3p1B2/b2Rrr2/2pQ1q1k/2PNpn2/5RQB/2rB2Q1/1KN3b1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 b4 d5 Nc6 dxc6 b3 axb3 Rb8 b4 Ra8 b5 Qb6 Bh6 Qc7 Bc1 Qd8 Kd2 Kf7 h4 g5 b4 a5 f4 e5 c4 a4 Kc2 a3 f6 a2 f5 e4 h6 g4 h5 g3 c7 g2 h7 Qe7 h6 Bb7 c8B Ra3 b6 Re3 b5 Qe8 Nf3 g1Q Nc3 Qh2+ Ne2 Qg2 Rh3 Ba6 b7 Ne7 b8Q Qg1 b6 Qg8 Bb7 Bg7 Bd5+ Kf8 b7 Ra3 f7 Bc3 Qd6 Qg3 b8R Rg8 h8Q Qg6 h7 Ba5 Qb2 Qc8 h8N Bc3 Be6 Kg7 f8N Bf6 Nf7 Bb7 Nh6 Bd4 f6+ Kh8 f7 Qg4 Ng6+ Kg7 f8N Re3 Bf7 Nd5 Ne6+ Kh7 Nc7 Re8 Na8 Re6 Ng8+ Kg7 Rg3 Ba6 Bh3 Qf8 Rb1 a1R Qa2 Bc3 R1b6 Bd4 Qf4 Rb3 Rd6 Bg1 Qd3 Ra3 Qe5+ Kh7 Nfd4 Rc3+ Kb2 Qg5 Qf5 Kg7 Bf4 Rd1 Nc1 Rf1 Kb1 Kh7 Qg2 Rc2 Bd2 Rf4 Nf6+ Kh6 Ng8+ Kh5 Qe3 Rf1 Qe1 Rf4 Re3 Rf1 Qeg3 Rf3 Qfe5 Rff6 Rf3 Nf4 Qd5 Qf5 Nh8+
B2Q1RqB/2BbK3/2B1pNp1/3r2R1/1R2Q1P1/N3pr2/1B2kbN1/3Qnr1r b - - 0 1 illegal: Other
3NR2B/1n1p2p1/RpnqN1rk/1BQ3Bb/N2PQ2n/bQ1K1R2/2B5/n5B1 b - - 0 1 legal: proof: e4 a5 c4 h5 b4 f5 bxa5 b6 exf5 h4 c5 h3 c6 Nf6 gxh3 Ra6 h4 Ra7 h5 Rb7 cxb7 Ng8 Ke2 Kf7 h4 e5 a4 c5 d4 e4 f4 e3 a6 c4 f6 c3 a7 c2 a8B Bd6 h6 Kg6 a5 Ba3 h5+ Kh7 a6 Nc6 b8B Qe7 a7 Qe6 f5 Na5 f7 Bf8 f6 Bd6 f8Q Ne7 f7 Nd5 Nh3 Qg4+ Kd3 e2 Bg5 Bg3 Nc3 Bh4 Nf4 Qe6 Na4 Qc6 Qc5 Nc3 f8R Qe6 Rh3 Na2 Re8 Nb7 Rf3 Qd6 Ne6 Rf8 Qb1 Rf6 Qb3 Rg6 Bc7 Be1 Bb8 Bb4 Bc7 Qd5 Bh2 Qd6 Bg1 c1N+ Ke4 e1N Bb5 Na5 Bd5 Ba6 a8Q Ba3 Ke3 Ne2 Be4 Nec1 Bc2 Nb4 Qe4 Nbc6 Kd2 Ng2 Kc3 Ne2+ Kd3 Nh4 Ra8 Ng3 Re1 Bb7 Ra6 Ngf5 Re2 Ba8 Re1 Nb7 Re2 Kg8 h7+ Kf7 h8N+ Kg8 h6 Kh7 Nf7 Ne3 Bd1 Nc2 Nfd8 Na1 Bc2 Ne7 Qe3 Qc6 Rf4 Na5 Nc7 Qd6 Qee5 Bf3 Ree4 Bh5 Rf3 Rf6 Re1 Kg6 h7 Nb7 h8B Nc6 Qf4 Kh7 Re8 Rh6 Qe4+ Rg6 Be7 Kh6 Nce6 Ng2 Bf6 Nh4 Bg5+
n1nK1NR1/5RB1/8/5nnr/NBQ1B1p1/1pr1kNPQ/1Q1QpR1Q/b4b2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 g4 c4 Qd6 cxd5 Qh6 Be2 Be6 Bf1 Qg5 hxg5 Bc8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 h5 d4+ Kb4 a4 c5 f4 b5 d6 h4 g3 h3 d7 e6 d8Q h2 f6 c4 d5 Kc5 d6 c3 g6 b4 a6 b3 f7 c2 f5 Rh3 g7 Rh7 d7 Ne7 Kf6 e5 g8R e4 a5 e3 a7 e2 a6 Kc4 Qd4+ Kb5 Bd2 c1N Bg2 Bb7 Qb2 Kc4 Qc7+ Kd3 d8Q+ Bd5 Nf3 Rh5 Rf1 h1N Rf2 Nec6 Bb4 Ne7 Qc4+ Ke3 Nc3 Nc8 Na4 Nd3 Raf1 Bd6 f8B Nf4 Bg7 Ne6 Kf7 Nd4+ Ke8 Nd7 f6 Be5 f7 Bb7 f8N Ndb6 Qdd5 Bc6+ Kd8 Nf5 Qd1 Rb8 a8Q Be4 Qb7 Na8 a7 Bd5 Qbc6 Rb6 Qf6 Rc6 Qh4 Bd4 Qh2 Bc3 Qbb1 Ba1 Qb2 Be4 Ng1 Bd5 Be4 Rc7 Nf3 Bb7 Rg2 Nf2 Qe1 Nh3 Rgf2 Ng5 Qd1 Nab6 a8Q Rc5 Qaa6 Na8 Qh6 Bd5 Qdc2 Bc6 Rd1 Bb7 Rd7 Rc6 Rf7 Rc5 Qca6 Rc3 Qc4 Bd5 Bd3 Rh4 Nd4 Bf3 Be4 Bg2 Nf3 Bf1 Qh7 Rh6 Qh8 Rg6 Q8h3 Rh6 Qd1 Rh5 Qdd2#
2N4r/2Q1PRKp/1n2b1pN/1Q2nBkR/1Q2p3/2R3pB/3R3N/2B1brqR b - - 0 1 illegal: Other
K1NBR2B/4R3/N1Nq1BB1/2P1Bpq1/1r1B3r/1k1p1r1n/4Q3/1q2B2R b - - 0 1 legal: proof: d4 h5 b4 e5 f4 c5 dxc5 d5 e4 b5 cxb6 d4 a4 Bb7 c4 Bd5 exd5 e4 g4 Na6 gxh5 Bd6 c5 Be5 fxe5 Nc7 Qd3 Nh6 Qd1 Nb5 axb5 Ng8 Ke2 Ke7 h4 a5 e6 g5 h6 g4 h5 e3 Kd3 a4 Kc4 f6 h7 a3 b7 a2 b8B g3 b6 e2 Kb5 e1R Kc6 g2 Kb7 Re5 b5 Nh6 d6+ Ke8 d7+ Ke7 Na3 Rf5 Bg5 Nf7 h6 Ra5 Qe2 Re5 Re1 a1Q Nc4 Qb2 Nd6 Rf8 h8B Ra8 h7 Rg8 Nc8+ Kf8 Nf3 Qe8 d8B Rf5 Ne5 g1Q Nc6 Ra4 Be5 Rb4 Ka8 Qe7 b7 Qb1 b8B Qd6 b6 Rf3 b7 d3 e7+ Ke8 Bg2 Kd7 e8R f5 Bgf6 Rgg3 Bbc7 Rg8 Ba5 Ng5 Bh3 Qg2 Bg4 Nh3 Bh5 Rgg4 Bg6 Rh4 Bhg7 Qg5 h8B Qe7 b8N+ Ke6 Na6 Kd5 Bd4 Kc4 Bfe5 Qd6 Bgf6 Rb7 Reg1 Rb2 Be1 Rb4 Rg4 Kb3 Re4 Rb5 B5g3 Rb7 R4e7 Rb4 Bge5
6bR/2B2n1B/n6r/rk6/NRnB2B1/1PB3KN/2q2Q2/bqBBb1RN b - - 0 1 illegal: No possible last move
B4n1n/3B1N1P/NbB4Q/bN1RKbq1/R5k1/b1B5/1r1R2B1/1qn1BB2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Rh7 c5 Ra5 bxa5 Rh8 Kd2 Ke7 Ke3 Ke6 Ke4 g5 c4 g4 h4 f6 b6 a3 h6 a2 a6 g3 a7 d6 a8B g2 b7 Nd7 b8N Qa5 h5 Qb5 c6 Qa4 c7 Rh7 Nh3 g1B Qd2 Qa5 c5 Rf7 c6 Bc5 h7 Bg7 h8B Bg1 h6 Nf8 h7 Be3 Rh2 Bb6 Na6 Nh6 Na3 f5+ Kf4 d5 e4 d4 Nb5 Bd7 c8B d3 c7 Re7 Bcb7 Nf7 Qe3 d2 c8B d1N Bd2 Nf2 Be1 Qd2 Rd1 a1B Rg2 Qc1 Rd5 Bb2 Bc6 Bf6 Bc8b7 Ba3 Rg4 Re8 Rd2 Bfd8 Ng5+ Ke7 Bg7 Nh8 Nf7 Ke6 Qh3 Qc5 Rg5 Qe7 Qh6+ Qf6 Rg4 Ba5 Rd5 Bdb6 Rg2 Rb8 Rg4 Ke7 e6 Qg5+ Ke5 Bc8 Rg3 Bd7 Rgd3 Bc8 R3d4 Bd7 Ra4 Bc8 Rd2 Nd3+ Kd5 f4+ e5 f3 Ke4 Bd7 Bf6+ Ke8 e7 f2 Kd5 Bb2 Kd6 Nc1 Bcg2 Bf5 Kd5 Kd7 Bc6+ Kc8 e8B Ba3 e6 Rb7 e7 Rb8 Bc4 f1Q Bc3 Qd3+ Ke5 Qb1 Bcf1 Rb7 Bcf3 Rb8 Bg4 Rb7 Bec6 Rb8 Bcd5 Kd7 e8R Rb7 Rd8+ Ke7 Bc6 Rb8 R8d4 Rb7 Qh1 Rb8 Kd5 Kf6 B4h3 Kg6 Ke5 Kh5 Rd5 Rb7 Be4 Rb8 Bhg2+ Kg4 Qh6 Rc8 Bd7 Rc4 R5d3 Rb4 Rd6 Rb2 Bec6+ B5b4 Nd4 B4a5 Rd5 Be7 Nb5+ Beb4 Bd4 Ba3 Bc3+
1RB1R2B/1N1rR1RK/1NPqB3/4r1q1/3b2Rk/q2Q4/4bNpn/q4RR1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Bb7 dxc5 Nc6 a4 Bc8 axb5 a4 Ne2 Ra7 Ng1 Na5 bxa5 Ra8 Ke2 Kf7 Kf3 Kf6 Kf4 d5 h4 g6 c4 d4 c6 e6 c7 d3 c5 a3 b6 d2 a6 a2 a7 Ne7 b7 Rb8 a8N Rg8 h6 Nc6 h5 Na7 c6 Qd3 h7 Qb3 h8R Qa3 h6 Qd3 h7 Qa6 Nh3 Qa5 Bb2+ Qc3 Na3 Bg7 Bc4 Rd8 Rg8 Nb5 h8R Rd7 Rh7 Na7 Nb6 Rd3 Re1 Rd7 Nb5 e5+ Ke4 g5 f4 g4 Nd6 g3 Nf2 g2 Be6 Bh8 Rg3 Qa3 Rhg7 Nb5 Re2 Ra8 b8R Ba6 c8B Nd4 Nb7 Nf3 Qb3 d1Q Qd3 Qd2 Rg1 a1Q R7g6+ Ke7 Qb3 Ne1 f6+ Kf8 Bg8 Bc4 Kf5 e4 f7 Ke7 f8R e3 Nd3 Ra7 Kg5 Ra4 Kh6 Ra5 f5 Nf3 Kh7 Nh2 R6g5 Bc3 Re8+ Kf6+ Bf7 Qdd1 Ree1 e2 Ref1 Re5 Re7 e1Q Be6 Qed2 Nf2 Be2 Qb5 Qdd6 Qd3 Qdc1 R5g4 Qf4 Rg8 Qg4 Re8 Kg5 f6 Kh4 f7 Re4 f8R Qg5 Rff7 Bb4 Be5 Bc5 Bh8 Re5 Rg7 Bd4 Rg4+
1B2RR2/8/1bRb1bR1/R1pKNbRB/Q6r/4PRq1/4Bq2/nqk3NN b - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 Kf2 Na6 Ke1 Nc5 g3 Ne4 fxe5 f4 g4 Ra6 Ra4 Rf6 Ra1 Rf5 gxf5 g4 Nc3 Bd6 Nb1 Ng5 hxg5 Bf8 Kf2 Ke7 d4 h5 b4 c5 d6+ Kd7 b6 Kc6 g6 Kd5 g7 Ke4 f6 h4 f7 a4 b5 f3 d7 h3 d5 h2 d6 a3 e6 a2 e7 Rh4 e8B Qc7 d8N Rh5 b7 Re5 b8R Nh6 g8R Rf5 b6 Rf6 b7 Nf5 d7 Qf4 Nd2+ Kd4 Ne4+ Kc4 Rg5 Ne3 Nc6 Nc2 d8R Kb3 Ne5 Rh6 Rd6 Bf5 Rc6 Rh4 Ng3 Bd6 f8R Kc3 Bd2+ Kb2 Bh5 Bc7 Rbe8 Bb6 Rgg6 Qg5 b8R Qf4 Rc1 Na1 Qa4 Qg5 Rc3 Kb1 Ke1 f2+ Kd1 Kb2 Bf4 Kb1 Kd2 Kb2 Ne4 g3 Kd3 g2 Kc4 Qg3 Rf3 Kb1 e3 Kc1 Bd3 f1Q Ra8 Qfe1 Be2 Qef2 Nh3+ g1B Kd5 Nc2 Ra5 a1B Nc4 Bb2 Bb8 Bf6 Ne5 Na1 Rg5 Qf1 Rg6 Bf2 Rg1 h1Q Rg5 Be1 Rg2 Qff2 Ng1 Bc3 Rg6 Be7 Rg5 Bd6 Rg6 Qgh2 R2g5 Qhg3 Ng4 Bf6 Ne5 Qe1 Nf2 Qhg2 Nh1 Q2f2 Rd8 Qb4 Rdc8 Qb1 Rce8
NBB2BK1/br6/B5B1/3Rn2q/2b2nR1/2P2rr1/RbnBB3/1QbN2Nk b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kd5 a5 b4 d6 f4 h4 g4 a4 f6 Kg6 b6 h3 f7 e4 c6 a3 b5 a2 c7 h2 b7 e3 b6 e2 Nc3 e1B Bd2 Qe8 Qb1 Ra3 Be2 Rh6 Nd1 Nc6 b8R Rh7 b7 Bh6 f8B Rf3 c3+ Bf5 c8B Bf2 Ra8 Ne5 b8B Bd3 Ra4 Ne7+ Ke6 d5 Ra5 d4 Rd5 Be4 Bca6 d3 Bc8 Rg7 Ba6 Ba7 f5+ Kh7 f6 Qh5 f7 N7g6 Bc8 Nf4+ Ke7 Bf5 Kf6 Be6 g6+ Kh8 g5 Rh7 Rd8 Bc4 Rd5 Rg7 Ba6 Rg8 g7+ Kh7 Ke7 Kg6 Ke8 Kf5 g6 Kg4 Ke7 Rh8 g8B Kg3 g7 Kg2 Bh7 Rg3 Bf5 Rh7 g8B Rhg7 Be6 Rf3 Ke8 Rgg3 Bh7 Bg5 Bg6 Bh6 Be1 d2 Bec8 Bg5 Bfd6 Bh6 f8N Bg5 Nd7 Bh6 Nf2 d1N Bf8 Ne3 Bd2 Nc2 Nb6 Bg5 Na8 Bh6 Ngh3 Bg5 Rd1 h1R Ng1 Rh2 Re1 Rh4 Nd1 Kh1 Rf1 Bh6 Rf2 Rhg4 Rg2 Rg5 Bf7 Rg7 Bg6 Rh7 Rd8 Rb7 Rd5 Rh3 Rg4 Rhg3 Bc5 Bg5 Kf8 Bh6+ Kg8 Bg5 Bf8 Bh6 Qc1 Bg5 Rb1 a1B Rb2 Bh6 Ra2 Bb2 Qb1 Nfd3 Be1 Bhc1 Bd2 Nf4 Be6 Ned3 Bd7 Ne5 Bc8
KB4RB/1r3b1N/1k5B/2bP1npB/1RQq1R2/2q1B1B1/N3NrB1/1r1n2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d6 Kd7 Kf2 a5 Kf3 g5 Ke4 c5 Kd5 f5 d4 c4 b4 f4 h4 f3 e4 c3 b6 a4 h6 c2 h5 a3 h7 a2 e6+ Ke8 e5 f2 h6 Qf6 b5 Kd8 e7+ Kd7 e8N Ra7 e6+ Kd8 d7 Bb4 b7 Qf4 b6 Qc7 Rh4 Be7 Nc3 Na6 Nge2 Ba3 Rf4 Ra8 Qd3 Be7 Nf6 Ra7 Be3 Qb8 Kc6 c1Q d5 Qe1 Qc4 Qe5 b8R Nc7 b7 Qb1 Bh3 f1R Ra8 Qc1 Bg2 Rf2 Rb8 Ra3 Kb6 Rb3+ Ka7 Nb5+ Ka8 Bc5 e7+ Kc7 e8B Ne7 Bh5 Rg8 h8B Qe6 h7 Qh3 Bg7 Nf5 h8B Rb1 Nh7 Kb6 Bed4 Qg1 Bh6 Qd3 Be3 Rg7 d8B+ Rc7 Re4 Qd4 Bdf6 Rg7 Be5 Be6 Rg8 Rc7 b8B Bf7 Bg3 Rb7 Nd1 Nc3 Rf4 Na4 Ndc3 Nb2 Nc1 Nd1 N3e2 Rb3 Rb1 Rb5 Rb4 a1Q+ Na2 Qac3 Ra4 Rb1 Rb4+
bn4N1/Nqn3k1/R4P1R/rpNqR3/3r2N1/6NQ/bBN1K1Bb/1n1B2N1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 c5 g4 h5 f4 e5 a6 b5 g6+ Kf6 g5+ Kg7 a5 c4 a7 c3 a6 e4 d6 e3 d7 c2 d5 e2 d6 h4 Na3 h3 Qd3 h2 Qh3 Ne7 f6+ Kg8 g7 Rh4 f7+ Kh7 g8N Rh6 g6+ Kh8 f5 Nec6 g7+ Kh7 Bg2 Bb7 Bb2 c1N Nc2 Qc8 d8N Rh5 d7 Bd6 Nh6 Rh4 g8N Rd4 f8N+ Kh8 Nh7 Kg7 Nhf6 Rh4 Nhg4 Ne7 Nc6 Be5 d8N Na2 Ne4 Nd5 Ng3 Nac3 Bf3 Nc7 Ne6+ Kh8 Ra3 Nb1 Nc5 Kg7 Re3 Qd7 Re4 Qd5 Kf2 Bc8 Ke3 e1Q+ Be2 Qa5 Bd1 Be6 Ke2 Qb6 Re3 Nd7 Re4 Qb7 Re3 Rf8 a8B Nb8 a7 Rf6 Re4 Bf4 Re5 Bf7 Nce7 Ra6 Nc8 Ra4 Nd6 Ra5 Nc8 Qb6 Bc6 Qb7 a8R Be6 Ra6 Bf7 Nf3 Be6 Na7 Bf7 Re1 h1B Ng1 Be4 Re6+ Be5 Rh6 Bg2 Nh2 Rd4 Ng4 Bh1 Nge4 Bh2 Ng3 Qd7 Bg2 Ba2 Bf1 Bhd5 Bg2 Qd8 Kf1 Bc6 Re5 Qd5 Ke1 Qc8 Kf1 Ba8 Ke2 Qcb7 f6+
1rBRBr1B/1R2B3/nNq4Q/2bN3b/Br3nbr/1BN1R3/p2k2P1/K5B1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Ke7 Kd2 h5 Kc3 f5 e4 a5 b4 c5 Kb2 a4 g6 f4 d6+ Ke6 b6 c4 d5+ Kd7 e6+ Ke8 d7+ Ke7 b5 Kf6 b7 Ke5 b6 h4 e7 h3 e8B f3 d6 f2 g7 h2 Ra3 c3+ Ka1 c2 Be3 c1R Qd2 Nf6 g8B Re1 Ne2 Nh7 Bb3 Qc7 d8B Nf6 d7 Nh5 Nf4 Qc1 Nd5 Rd1 Be7 Nf4 d8R Ng6 Ba6 f1B Bg1 Qc6 Qh6 Rd4 Nbc3 Be2 Bd7 Bg4 Bb5 Na6 b8N Be2 b7 Bh5 Bh3 Bcg4 Nd7+ Ke6 b8B Rb4 e5 Kf5 e6 Nf4 Bba7 Rb8 Bad4 Rg8 N7b6 Rh8 Bg5 Bc5 e7 Rg8 e8B Rf8 Nd1 Ke4 Bh8 Rd4 Be7 Rb4 Ra2 a3 Rb2 a2 B5a4 Kd3 N1c3 Rb5 Re2 Rb4 Re5 Kd2 Re3 Be2 Bc8 Bef3 Bf2 Bfg4 Rb1 h1R Bg1 Rh4 Rf1 Nd3 Rf6 Nf4 Rfd6 Bf3 R6d7 Bfg4 Rb7
2K3R1/7B/Bqn5/P1R4N/pBr1n1BN/NQ2B1B1/b2r1Bb1/bnk1bR2 b - - 0 1 illegal: No proof kernel
R2n4/1N3rbK/1pnN4/B1Nb2Q1/qkn4B/RN1P1N1N/1r1N2q1/1B1R3n b - - 0 1 illegal: No possible last move
2B5/BN2qRR1/1N3Rb1/b1R5/rR1rN1pQ/2pnR3/Pn2B2q/1rk2KR1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 d4 Kf6 f4 b5 d6 c5 d5 e5 d7 g5 h6 g4 h5 b4 a6 e4 a7 c4 h7 c3 d6 e3 h6 e2 Nd2 b3 Rh3 b2 Ne4+ Kf7 f6 Kg6 f7 Kf5 Be3 b1Q Nf3 Bb7 Nfd2 Qb3 Nc4 Qc8 d8R Nd7 Nb6 Rb8 a8B Bd5 Bb7 Ndf6 d7 Bb4 f8R Qc2 Rf7 Qc7 Bc8 Ne7 Rg8 Nc6 Rgg7 Rd8 h8R Na5 h7 Ra8 Bg1 Qc5 Re3 Qe7 Rhf8 Nc4 h8R Nb2 Rh5+ Ke6 f5+ Ke5 Rhg5 Nh5 f6+ Kf4 Rc1 Bc4 Rc5 Ba5 Kf2 e1R+ Be2 Bb3 Kg2 Rf1 Qe1 Bc4 Ra1 Bd3 Qh4 Rb1 Rh8 Ng3 Rhh5 Nh1 Rhd5 Ra6 Rd4 Nf2 Rb4 Qd2 Bd1 Bc2 Kf1 Nfd3 Bf2 Ra7 Bg1 Qh2 Bf2 Rh8 d8N Ra8 Nb7 Rd8 Rh7 Ra6 Rfg7 Rd4 f7 Bb3 f8R+ Bf7 Bf5 Bh5 Rf6 Bg6 Rgf7 Ra8 Rhg7 Ra6 Re1 Ra7 Be2 Ra8 Bg3+ Ke3 Bb8 Ra6 Bc8 Ra8 Ng5 Ra6 Ba7 Kd2 Ne4+ Kc2 Bd1+ Kc1 Re3 Qhc7 Be2 Qh2 Nc4 Bc7 Nb6 Ra4 Nc4 Ba5 Nb6 Rd5 Rfc6 Rd7 Rcf6 Rd4 Qf2 Kc2+ Qe1 Rc1 Rb1 Qhd6 Kg2 Qf4 Qh4 Rh1 Rf1 Qfe5 R1f4 Rb1 Rf1 Qf4 Rg1 Qfc7 Bd1+ Kc1 Kf1 Qh2 Be2
2N1n3/2k1pRpr/6Rr/2RR2Q1/NNKnbPqn/1R3B2/qb1B4/3RB1R1 b - - 0 1 illegal: No proof kernel forced: wxDB
2BN1nR1/3n4/1pbB1NPN/1r1b1N1R/NN1b1N1p/rkRB1p2/6qQ/3K4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 a4 Ke7 g4 Ke6 e4 h5 c4 d5 c6 f5 c7 d4 a6 d3 g6 f4 a5 b6 g5 f3 c5 Qd6 a7 Na6 g7 Qd7 c6 Bb4+ Nc3 Nc5 g6 Qd5 a6 Ne7 g8N Qc4 Ra3 Nb7 Qe2 d2+ Kd1 Nc5 Nh6 Ba5 Na4 Qa2 Rc3 Nd5 Qh2 Nd7 Ba3 Nb8 Ne2 Nf6 Bd6 Bd7 c8N Qa3 c7 Qb4 Ne7 Rc8 Nc6 Re8 c8B Qc4 Nb4 Rd8 Nf5 Nc6 Nh6 Rb8 a8R Qa2 a7 Nh7 Qg1 Rb7 Qh2 Nf8 Rb8 Re8 a8N Rd8 Ng3 Re8 Ngf5 Ra7 Bd3 Ra6 Rg1 h4 Rg5 Re7 Rh5 Rf7 Bb7 Qb2 Re8+ Re7 Bc8 Nb8 Rd8 Nh7 Rg8 Nf8 Bb7 Bc6 Nc7+ Kd7 Ncd5 Ke6 Bc8+ Nbd7 Rc1 Qd4 Rc3 Qf2 Nf7 Qg2 N5h6 Re8 Bb8 Ra8 Nf4+ Ke7 e6 Ra6 Kc2 d1B+ Kc1 Ra8 e5 Bb3 Nd8 Bbd5 Kd1 Ra7 Nc2 Bb4 Bc7 Bc5 Nb4 Bd4 Bb8 Nh7 Bc7 Rf8 Bb8 Rf5 Bc7 Nhf8 Bd6+ Ke8 e7 Rg5 Nc5 Ra3 Na4 Nf6 Bca6 Kd7 e8N Rf5 Ng7 Rg5 Bc7 Ke7 e6 N6d7 Bd6+ Kf6 e7 Rf5 Bc5 Ke5 e8N Bf7 Bf1 Ke4 Be7 Rb5 Bd6 Bfd5 Bc4 Bf2 Be2 Kd4 Bc8 Be3 Nf6 Bg1 Rd3+ Kc4 Ngf5 Bd4 Rd2+ Kb3 Bd3 Bb2 Rc2 Bd4 Rc3+
k2n2B1/1B2B3/N3n1N1/rpb1Pr1b/2RpQq2/3q1RB1/p1B3NK/2B1R2B b - - 0 1 illegal: No possible last move, all moves rejected
3r1nB1/1B5N/R1Bnbp1B/3rB1R1/bN2k3/bR2NPBp/K1n3p1/2B4Q b - - 0 1 illegal: No possible last move, all moves rejected
3Br1N1/nBNp2Rn/1pb1p2k/rq1P4/1B6/R1NN1N2/QRN1p1N1/K4b2 b - - 0 1 illegal: Other
K4B2/3Nb2B/2n1r3/4PBbR/5R1r/Q3q3/BqrRB1k1/BNQ2B2 b - - 0 1 illegal: No possible last move
RNRN1NQb/rn1NBR1N/N1BQ1prn/7k/n1N1q3/8/2P4K/n7 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 e5 gxh5 b5 axb6 c5 f4 c4 fxe5 c3 a4 Be7 a5 Na6 b7 Nf6 b8N Nb4 a6 Bb7 axb7 Bf8 dxc3 Nc6 c4 Ng8 c5 Bd6 Kf2 Be7 Ke1 Bf8 Kf2 d5 Kg2 g5 h4 d4 e4 f6 h6 Kf7 h7 Kg6 e6 d3 e7 d2 e8Q+ Kh6 h5 g4 e5 g3 e6 Ra3 e7 Rf3 Bb5 Nd4 c6 Rd3 c7 Qd7 c8R Nc6 Nf3 Qc7 Ba3 Qa5 Nd7 Rc3 b8N Qa8 Ng5 Nd4+ Bc6 Nf5 Kg1 g2 Kh2 g1N Qf7 Rb3 e8N Rb7 Be7 Ra7 Nc7 Bg7 Nca6 Ne2 Na3 Qb7 Nc4 Nc1 Qd5 Qa8 Qg4 d1N Qd6 Nc3 Qgg3 Nd3 Rhb1 Nd4 Rb7 Nb3 Qg4 Bf8 Ra4 Na1 Qge6 Kg7 h6+ Kg6 Ndb6 Ne5 Bb5 Kh5 Nb4 Nb1 Bd8 Ne7 Qg8 Nf5 Re7 Nc3 N6d7 Ra5 Rf7 Qc6 Be7 Nd3 Ra3 Qe4 Bc6 Bg7 Ra4 Rb5 Ra8 Rb6 N4a6 Nc5 Ne6 Rb7 Nd8 Kg5 Qe8 Rf8 h8N N3a4 h7 Kh5 Ng6 Rg8 h8N Ra7 Qf8 Bh6 Qe8 Rg7 Qg8 Nb7 Ngf8 Rg1 Nh7 Bg7 Nb2 Nh6 Ng6 Bh8 Ngf8 Rg6 Nc4
q5n1/1n3bRB/4n2b/R2n3N/1r1PB3/1rB1QBKn/5B2/kB1NQB1Q b - - 0 1 illegal: No possible last move
1N1Bq3/K2n2Rb/B1qqR1R1/1Br3q1/5R1P/p1b5/1R3N2/RR1nQQk1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 d4 a5 h4 f5 b4 g5 h6 c4 e6+ Kd6 e7 c3 e8B a4 h7 g4 b6 c2 b7 a3 b5 g3 b6 g2 Nc3 Be7 Na2 Be6 Qe1 Ra4 Nh3 g1Q+ Nf2 Bf7 Nb4 Ra6 Bb5 Qg4 Rg1 Qd7 Nc6 Qh5 Rg7 f4+ Kd3 f3 Kc4 Qe8 e4 Bf6 e5+ Kd7 Kc5 Ra5 d6 Ke6 d5+ Kf5 d7 Qg5 d8Q Qf8+ d6 Bg6 e6 Bb2 e7 Qh5 e8R Ne7 d7 Nd5+ Qde7 Qg5 d8R Ne3 Rd6 Nd1 Q7e2 Bc3 Re6 Qe8 Bb2 Rg8 h8R c1Q Rd4 Rf8 Rh6 Bh7 Rhg6 Qcd2 Bc1 Qd3 Bf4 Qc2 Bc7 Qcd2 Bd8 Nd7+ Kd6 Rf6 Kc7 Qd3 Ba6 Rc5 b8R Qdd2 Ra4 Qd6+ Kb7 Rf7 Ka7 Rf6 Ng4 f2 b7 Rf8 Rb4 Rf6 Rbb1 Kf4 Ra8 Kg3 b8R Rf3 R8b2 Rf6 Nb8 Rf7 Nf6 Kh2 Ne4 Rf3 Qe3 Kh1 Bfb5+ f1Q Nf2+ Kg2 Q3e2 Qh1 Nc6 Rf4 Rc8 Kh2 Nb8 Qhc6 Rc7 Rg4 Rf7 Rg1 Rf4 Rf1 Rb7 Kg1 Rc7 Nb6 Rcg7 Nd7 Q2xf1+
1N1qB1B1/3B3k/4p1Q1/1R2P2K/1B1Nn2B/2rn4/q1bqQB1R/Bnn2Q2 b - - 0 1 illegal: No possible last move
QQ1K1nQ1/B2n4/3p1k1q/2R5/N1Nbr3/q1rQrp2/2B2QRP/1Q1Q3R b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 e5 fxe5 b4 g4 b3 axb3 Ne7 b4 Ng8 b5 Qb6 Qd6 Qc7 Qd1 Qd8 b6 h5 gxh5 a5 b3 a4 Qd3 a3 Qd1 Bb7 Bd2 Bc6 Bc1 Ba4 bxa4 Ra7 Be3 Ra5 Bc1 Ra8 Kf2 Ke7 Kg3 f5 Kh4 d6 Kg5 a2 c4 g6 e4 f4 e6 f3 e5 Rh7 b7 Ra7 a5 Ra6 h6 Bg7 c6 Nd7 b8Q Bf8 c7 Nc5 c8R Rc6 a6 Rb6 a7 Rb5 a8Q Nf6 Nd2 Qd7 Bd3 Qc7 Ne2 Rb6 Nc3 Qd7 Na4 Qe8 Bc2 Nb7 c5 Nh5 c6 Bg7 c7 Qg8 Nc4 Qd8 Be3 Rb4 Ba7 Nf6 Qb1 Rh8 h7 Re8 h8Q Nd7 Qh4 Nf8 Qf2 Nc5 Qe4 Ncd7 Qd3 Rb3 Qbd1 Rc3 Qbb1 Bh8 Rg1 Bg7 Rg2 Bh8 Ra8 Qb8 c8Q Qb3 Qc7 Qa3 Rc8 Bg7 Qcb8 Qc1+ Kg4 g5 Kf5 g4 Rc5 g3 Qa8 Bh6 Qab8 Be3 Qa8 Bd4 Qab8 Ng6 Qa8 Qh6 Qab8 Kf8 e7+ Kg7 e6 Ngf8 Qa8 Rb8 e8Q Rbb3 e7 Ra3 Rg1 g2 Qeb8 Kf7 Rh1 g1R e8Q+ Kg7 Qed8 Rg4 Rg1 Kf7 Rg2 Re4 Qg5 Re8 Qg8+ Ke7 Ke4 Kf6+ Kd5 Re4 Kc6 Rab3 Kc7 Ra3 Q1b7 Rab3 Rc1 a1Q Kd8 Ra3 Qb2 Rab3 Qb1 Qa3 Q3e2 Rce3 Qdd3 Rc3 Rh1 Be5 Qee1 Bd4 Qed1
3NN2N/1Q1R2bk/1rP5/1N1K2B1/N1Q3b1/b1B4R/ppB1rb2/2N1nNq1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 Rh7 a4 Rh8 b3 a5 Qd4 Qb6 Qd5 Qa6 Qd1 Nc6 Qd5 Na7 Qd1 Nb5 axb5 a4 Nf3 a3 Ng1 Qa4 bxa4 Ba6 Nf3 Bb7 Ng1 Bc8 Kd2 Kf7 Kd3 e5 Kc4 g5 f4 Kg7 h4 b3 b6 g4 c6 g3 f6+ Kh7 b7 e4 b8Q g2 a5 a2 c7 d6 h6 b2 h5 e3 f7 e2 a6 e1B a7 Bg3 f5 Bh4 f6 Bg5 Nd2 Bf4 Qb7 Bf5 c8N Bg6 Bd3 Bf5 Kd5 Be3 c4 Bb6 c5 Bg6 c6 Bg7 Ne2 g1B Qc2 Bbc5 Nf1 Bh2 Nb6 Re8 a8N Be5 Na4 Bf5 Nc7 Bf4 Qc4 Re6 Bc2 Bf2 Ne8 Bd4 Rh3 Bh2 Bg5 Bf4 Rd3 Bg4 Rad1 Bf2 Nc1 Re2 f8B B4e3 f7 Bc5 Bfe7 Ba3 Bef6 Re3 Bc3 Nf6+ Kd4 Nd7+ Kd5 Re2 f8N+ Kg8 R1d2 Nc5 Ne6 Kh7 Nd4 Rf8 Nb5 Rf4 Re3+ Nd3 Re7 Rfe4 Rd7 Ne1 Rd3 Rf4 Qb3 Rb4 Qc4 Rb3 Nd4 Rb6 Nb5 Kg8 h7+ Kf8 h8N Kg8 h6 Kh7 Nf7 Rd2 Ke4 d5+ Kf4 d4 Ke4 Re2+ Kd5 Re3 Nd8 Re2 Rf3+ d3 Rg3 Kh8 Rh3 d2 Re3 d1Q+ Rd3 Kg8 h7+ Kf8 h8N Kg8 Qf4 Kh7 Qc4 Ng2 Ng3 Qg1 Nf1 Ne1 Rh3+
1N2Qq2/1Q1QbrQ1/1qQ5/kqQR3R/1qpK2n1/3P2p1/BNR3nB/5Q2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 e4 b3 exf5 a6 f6 Nd7 f5 Nb6 f7+ Kd7 f6 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 h3 a5 Ke2 Ra6 Ke1 Rc6 Qa4 Rc3 Qc2 Rf3 Qd1 Rf5 gxf5 Ba6 Qg4 Bb7 Qd1 Bc8 b6 g5 Be2 g4 Bd3 g3 Bf1 Ba6 Nf3 Be2 Ng1 Bg4 hxg4 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 e5 Kd3 h5 b4 c5 b5 a4 d6 a3 b7 h4 g5 h3 b6 Kc6 d7 Kb5 g6 h2 g7 a2 Ne2 Nh6 g8Q Qc8 d8R Nc6 b8Q Ne7 b7 Qc7 Nbc3+ Kb4 Nd4 Ng6 Qa8 Qb8 Na4 Qa7 b8Q+ Qb6 Qbb7 Ne7 Rd5 Ng6 Qg7 Ng8 Nc6+ Kb5 Nb8 Rh3 Nb2 Bd6 f8Q Rh7 f7 Be7 f6 Nh4 Qe8+ Kb4 f8Q e4+ Ke3 Nh6 f7 Qb5 Rb1 a1Q Bc4 Qa6 Ba2 c4 Kd4 e3 d3 e2 Qed7 e1Q Be3 Ng2 Rc1 Ka5 Qfe8 Qd2 f8Q Qb4 Qdf1 Ng4 Rc2 Qa7+ Ke4 Qa6 Bg1 Qa7 Qbc6 Qa6 Qab7 Qb6 Qgg8 Rf7 Qgg7 Bf6 Qfc5 Be7 Kd4 Rf8 Be3 Rf7 Rg1 h1Q Bf2 Qh2 Rh1 Qh5 Bg1 Qh8 Rhh5 Qf8 Bh2
1N2B1N1/q1BBB3/6q1/BKn4k/RnQ1RrnB/2bb3B/1QP1br2/4qR2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 h5 b4 a5 g4 d6 f4 a4 b6 h4 c6 h3 c7 h2 g6+ Kf6 g5+ Kg7 b7 a3 b5 a2 b6 e4 Nd2 e3 Kb5 d5 Ne2 d4 Bh3 d3 Nd4 e2 Nc6 e1N Qe2 Ba3 f6+ Kf8 f7 Kg7 f5 Rh4 f8B+ Kh8 g7+ Kh7 g6+ Kh6 f6 Bg4 c8B Nd7 b8Q Bb2 f7 Bf5 b7 Qe7 Ne4+ d2 Rf1 h1Q Nf6 Rf4 Qc4 d1B Bd2 Qg2 Ba5 Qd8 Be7 Nc5 f8B Bf3 Bd7 Qe8 Bed8 Qge2 Bfe7 Bd3 Qe5 Qf7 b8B Bc3 Bbc7 Qf2 Qd4 Bfe2 Nb8 Kg5 Be8 Nh6 g8R Ng4 g7 Qg6 Bd7 Kh6 Re8 Qe3 Ng8+ Kh5 Bh4 Ra6 Bdg5 Raf6 Re4 Rf2 Be8 R6f4 Be7 Qg3 Nh6 Qe3 g8B Qd2 Be6 Qe3 Rc1 a1Q B6d7 Qa2 Ra1 Qd2 Bb4 Qa7 Ng8 Bb2 Re6 Bf5 Qe3 Bc3 Ra4 Ned3 Bba5 Qe1 Qc1 Nb4 Qb2 Bfd3 Re4
B2bBRK1/3r1BBB/1N1Qq3/kn3Qq1/1rbn2P1/3B1bQ1/2RN2B1/2n4q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 h5 Kf3 a5 Ke4 f5+ Kd5 a4 g4 f4 e4 d6 b4 Kd7 c4 Kc7 b6+ Kb7 b5 f3 g6 a3 g7 a2 e6 h4 e5 f2 e7 h3 e8B h2 e6 Qh4 e7 Ra4 c6+ Ka8 c7 Kb7 c5 Ra3 c6+ Ka8 b7+ Ka7 Bd3 Kb6 Bh6 f1B Nd2 Ra8 Qc2 Ra3 Nh3 Bd7 c8B Ra4 c7 Rh7 Rc1 a1N Nf4 Bc6+ Ke6 d5 Kf7 d4 Nd5+ Ka5 b6 Na6 b8Q Nb3 b7 Rb4 Nb6 Qg5 Qb1 Bf3 Rc2 B1e2 Rf1 h1Q Be6 Nc1 c8B Nc7 Bc6 Nb5 e8B Bc5 Qd6 Ne7 b8Q Nf5 Rf2 Qe1 B8b7 Bf1 Qg3 Be7 Ba8 Bd8 Qbd6 Qe5 Bed5 Qe6+ Kf8 B1e2 g8B Rd7 Bg7 Bf1 Bh7 B1e2 B3e4 d3 Bf7 Nfd4 Kg8 Ra7 Be8 Rd7 Nf1 d2 Bd3 d1Q Nd2 Qh1 Bdb7 Bd5 Rf6 Bc4 Bg2 Na2 Qf1 Nc1 Qff4 Bf3 Qf5 Qee3 Be6 Qe5 Rf8 Qe2 B6f7 Qee3 Rc3 Qe6 Rc2
B3rQQK/2B2P1Q/1BNn4/br3B1n/1Bn1R3/2N1q2q/B2bb1k1/B1R4r b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 Kg5 e5 f4 a3 g7 e4 Kg6 h4 f5 a2 b7 e3 b6 h3 g5 e2 f7 e1R f6 h2 Bd3 Re2 Bf5 Rf2 Bb2 c1B Nf3 Ra3 Qd3 Ra6 Re1 h1N Ne5 Rh3 Nc3 Bd7 Re4 Rf1 Nc6 Nh6 Kh7 Ra4 g8B Qe7 g6 Bc8 g7 Ra5 Kh8 Bd2 Rc1 Rb5 Ba1 Re1 Bgh7 Bd7 g8B Ng3 Qc2 Qe8 Qb1 Be7 f8B Rhh1 Bge6 Nh5 f7 Bc8 Bhg6 Nd7 Qc2 Qd8 b8Q+ Qc7 b7 Nb6 Qa8 Nc4 b8B Ba6 Ba7 Qc8 Bb6 Ng8 Qb1 Ngf6 Qd3 Ne8 Qh3 Nhf6 Qh7 Qd7 Bh5 Re3 Bf3 Nh5 Bh6 Bd8 Bf8+ Qe7 Rf4 Ra5 Ne5 Na3 Bc5+ Kc7 Bb2 Be1 Bb4 Qh4 Bfc5 Qh3 Ba7 Rc5 Bb8+ Kb6 d6 Be2 d5 Rb5 d7 Bc7 d8Q Nd6 Qdg8 Re4 Ba5+ Kc5 Bb4+ Kd4 Bg2 Bb6 Bc7 Ke3 Qaf8 Ba5 Bf3 Kf2 Rg4 Nb7 d6 Re3 d7 Nd6 Bb3 Nac4 Ba8 Kf1 Nc6 Re8 Re4 Kf2 Rd1 a1Q Ba2 Qc1 Ba1 Qce3 Rc1 Bd2 Bb6 Kf3 d8B Kf2 Bdc7 Kf3 Bg6 Kg2 Bf5+
2N1rB2/4Q2N/nRB1bb2/1K1Rq1r1/1Rr2Pk1/R1R5/1Br1RQ1R/1b1r3n b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 a5 Kc4 c5 d4 h5 b4 e5 f4 h4 g4 e4 g6+ Kf6 g5+ Ke7 f6+ Kd7 b6 a4 b5 e3 g7 e2 d6 Ke6 d5+ Kf5 b7 e1R b6 a3 d7 h3 f7 h2 d6 a2 g6 Ra4+ Kb5 c4 Qd4 c3 Na3 c2 Bb2 c1R Nc4 Rc3 Nf3 Ra6 Ng5 Rca3 Bg2 Re2 Nh7 Qh4 d8Q Qh6 d7 Rc2 Bc6 Be7 f8B R6a4 Nd6+ Kg4 Qf2 Nf6 g8R Ne4 g7 Na6 b8R Bf6 b7 Rac4 Qe7 Rg3 d8R Be6 Nc8 Qg5+ Rd5 Qe5 Rhe1 h1B Re2 Bf3 Rh1 a1R Rh2 Rh1 Ra8 Rb1 b8R Rd1 Rb6 Rg2 Rab8 Ng3 Ra8 Nh1 Ra7 Nb8 Ra3 Be4 Ng5 Rh6 Nh7 Na6 Rh8 Rh5 g8R+ Rg5 Rhh3 Rgg1 Rhc3 Rge1 Rg6 Rcd2 Rh6 Bb1 Rh2 Rc2 Rc5 Rd8 Rd5 Re8 Rg8 Rg1 Rg6 Rf1 Rgh6 Rd1 R6h3 Rh5 Ra4 Rg5 Rb4 Bf5 Ra3 Be6 Rhc3
1R2RN1B/n2B1b1n/2P5/N1bRRn2/1Q2R1Rq/2r5/nQRK3k/n3Bb1r b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 f4 Kf6 b4 g5 h4 d5 h6 e5 h5 a5 b6 a4 h7 g4 b5 e4 h6 e3 c6 g3 c5 a3 b7 a2 c7 d4 b6 g2 Rh5 e2 Nd2 d3 Ngf3 g1N Nb3 Bd7 c8R Na6 b8R Be6 b7 Nh3 Nh4 Nf2 Na5 Ne7 Qc2 Rg8 h8R Rg4 h7 Nb4 Ng6 Rg5 Bh3 Nec6 Kd2 e1N Rg8 Ng4 Qb2+ Qd4 Rd8 Nec2 Rd5 Na7 c6 Bf7 Re8 Bc5 b8R Nce3 Nf8 Rg6 Rg5 Rh6 Re4 Rh5 Rb1 a1N R8g7 Na2 h8B Nf2 Rg2 Nfg4 Rbe8 Rb8 R8e5 Rb3 Rf2 Rc3 Re2 Nh6 Bg4 Rh1 Bh3 Be6 Rh2 Ng8 Rg4+ Kf7 Rhg2 Nf6 Rf2 Nh7 f6 Nf5 Rfe2 Ke8 f7+ Ke7 Rh2 Ng7 f5 Kf6 Qa3 Qa4 Rb8 Qd4 Rhe2 Qf2 Qb2 Qh4 Rgf4 Kg5 f6+ Nf5 Rg4+ Kh5 Rc4 Ra3 Rc2 Rc3 R2e4 Bd7 Ne6 Be8 f8R Bf7 Rfe8 Bg1 Kd1 d2 Nf8 Bc5+ Ke2 d1B+ Kd2 Bg8 f7 Be2 Ng6 Bb5 f8Q Bf7 Qe7 Bf1 Nf8 Bg1 Qeb4 Bc5 Rgf4 Qg5 Bg4+ Kh4 Bh3+ Kg3 Bg4 Nd6 Bd7 Qh4 Rg4+ Kh2 Kd1+ Qf2 Bd2 Qf6 Ke1 Qh4+ Kd1 Nf5 Be1+ Bg2 Ke2 Bf1+ Kd2
2N3n1/1Q3K2/2Q1r3/2Qn1BQ1/1RbrbB1Q/4B1N1/1Q2r1rP/Qq1kbR1q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 g5 Kg4 c5 Kf5 a5 b4 a4 d4 f6 Kg6 a3 e4 c4 e6+ Kd6 h6 g4 e7 g3 e8Q g2 h7 c3 b6 c2 b5 f5 b7 f4 e5+ Kc7 d6+ Kb6 e6 Ka5 d5 Kb4 e7 Kb3 b6 f3 d7 a2 d6 f2 Ne2 g1Q+ Kf7 Ra5 Ng3 Rg5 Bd3 f1B Nc3 Qd4 Bf5 Nc6 b8Q Qf2 b7 Qg1 Nce4 Qdb6 d8Q Nb4 d7 Nd5 Nd6 Bc4 Be3 Rg4 Qdc7 Rd4 d8Q Kb2 Qcd7 c1R Rb1+ Kc3 Rb4 a1R Qg4 Ra6 Qg5 Re1 Q7c7 Qg2 Qed7 Re2 Rf1 Qh1 e8Q Qb5 Qa7 Bg7 b8B Bb7 Nc8 Re6 Qcc5 Qb6 Bg4 Kc2 Bbf4 Rg2 Qa1 Bf8 Ra4 Qb1 Rb4 Bd6 Q7e7 Bc7 Qh4 Ba5 Qec6 Ba8 Qeb7 Re2 Rb3 Be1 Bf5+ Kd1 Qdf6 Nge7 Qe5 Rg8 h8Q Rg5 Rb4 Ng8 Ne4 Rgg2 Ng3 Re8 Qg5 Re6 Qhh4 Re4 Qe8 Nb6 Qeb2 Rd4 Qbe7 Be4 Qb7 Nd5 Qec6
R4BN1/1r3rBn/k5r1/b4NNb/3q4/1q4N1/RNNQ1b1P/nNrBQK2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 f4 c5 d4 Kc7 d6+ Kb6 d7 e5 h6 a5 d5 g5 d6 c4 f6 g4 f5 a4 f7 a3 h7 e4 f6 c3 Bh6 e3 Ra2 c2 Be2 c1R Kf1 g3 Bg7 Rc5 Qe1 Rc2 Bd1 Qe8 d8Q+ Kb7 b6 Rd2 d7 Rd6 b5 Rd5 Ne2 Bb4 f8B Qg6 f7 Rd6 Qg5 Ra7 d8N+ Ka8 Rg1 Qc2 Ne6 Kb7 N6d4 Qb3 Nf5 Nf6 Qh6 Rg8 h8N Rd7 Ng6 Ba5 Ne5 Nc6 Nd3 Nb4 Nb2 Nh7 Qd6 Rc7 Qdd2 Nc2 Rh1 Na1 Rg1 Kb8 b7 Bd7 Rg2 Be8 Rf2 Rd7 Rf4 Kc7 b8N Kb6 Ra4 Rab7 Na6 Re7 Nb4 g2+ Kg1 Red7 Neg3 e2 Nc2 Ka7 b6+ Ka6 Kf2 g1B+ Kg2 Ra7 b7 Bf2 Bh8 Rg6 b8N+ Kb7 Nc6 Ka6 Bd4 Rab7 Nce7 Rdc7 Ng8 Re7 Qh1 e1R Bdg7 Rec7 Qg1 Ree7 Kf1 Rc4 Ne1 Rc1 Nc2 Rec7 Bc5 Rd7 f8N Rf7 Qh1 Bc6 Ne6 Bf3 Bcf8 Bh5 Ng5 Qe3 Nc4 Qb3 Rb2 a2 Qe4 Rd6 Qee1 Rg6 Bf6 Ka7 Nb4 Nc2 Bh8 a1Q Rba2 Qd4 Be5 Na1 Nb2 Kb6 Nc2 Bc3 Ra7 Ba5 Ra8 Kb5 Beg7 Kb6 Re8 Ka6 Ra8+
1R3QnR/Q1b2K2/1Pr5/4kn1B/4N1RQ/q1NRRRr1/rbR2B1q/2r4b b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 a5 d4 e5 h4 c5 b4 g5 f4 a4 f6 a3 f5 g4 f7 g3 f6 g2 b6 a2 b5 e4 h6 e3 h5 e2 b7 e1R h7 Qa5 b6 Re2 h6 Be7 f8Q Be6 f7 Ra7 Nf3 g1R Be3 Rb2 Rh2 Rh1 Rc2 Rb3 Bf2 Rh5 Nc3 Bh3 Nd2 Ra8 Be2 Bg2 Nde4+ Kd7 d6 Ke6 d7 Rh4 d8Q Nc6 b8R Bd6 d5+ Ke5 Bh5 Bc7 d6 Bh1 d7 Nd4 Qg1 Rh2 Re1 a1Q Qh4 Q1a2 d8R Q5a3 Re3 Nf5 Qa1 Rg2 Rdd3 Rg6 Rc1 Qd2 Rc2 Rb1 Qa2 Rc1 Qa1 Rg3 Qa2 Nf6 Qa1 Rhg8 h8R R8g6 h7 Ng8 Qa2 Rc6 Qa1 Ngh6 Rg8 Ra7 Rg4 Ng8 h8R Ra5 Bg1 Qh2 Qa2 Rb5 Bf2 Rb2 Qb3 Ra2 Qa4 Re6 Qa7 Rc6 Qc8 Rf1 f8R Rc1 Kb5 c4 Rf7 Ng7 Rff3 Nf5 Qf8 Rg6 Nd5 c3 Kc4 Rd6 Rce2 c2 Ndc3 Rf1 Red2 c1B Rc2 Bb2 Nb5 Rc1 Nbc3 Qb3+ Kc5 Rd5+ Kc6 Rc5+ Kd7 Qa3 Ke8 Rc6 Kf7
2r3B1/2BPqQQR/1RB2Q2/1r1qrrBn/3nBbKN/8/B3kN2/n1B2b2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 a5 b4 f5 e4 c5 d4 h5 e6+ Kd6 e7 c4 e8B c3 g6 c2 e5+ Ke7 e6 Kf6 g7 a4 d6 a3 b6 a2 d5 Ke5 d7 Ke4 e7 Nh6 g8B Ng4 b5 Nh2 d6 Ng4 b7 Rh7 b6 Ne3 Bd3+ Kd4 Nh3 Bh6 Nf2 Ng4 Qg1 Ra5 Be4 Nc6 b8Q Rb5 b7 Nf6 Nd2 Ke3 Nf3+ Ke2 Nh4 Nd4 Rb1 a1N Ba2 f4+ Kh3 f3 g4 Bd2 g5 Bf4 g6 Rh8 g7 Rf8 Bb2 c1R g8B Rcc5 Qg7 Re5 Bc1 Qc7 Qa7 Qc5 b8B Ba6 d8B Qc7 Ng2 h4 Qb6 Nh5 Kg4 h3 Nh4 h2 B8c6 Qa7 e8Q Qe7 d7 Rff5 Nd1 f2 Bbc7 f1R Qef7 Rf3 Nf2 Rc3 Bb7 Rc4 Qbf6 Rc2 Bbc6 Rcc5 Rg1 h1Q Rg2 Qd1 Rh2 Qb3 Rh3 Qd5 Rbb3 Rb8 Rb6 Rb5 Rh1 Rc8 Nf3 Ng3 Rh7 Nh5 Nh4 Qe8 Ng6 Ke1 Qh8 Rc5 Qd6 Bf1 Bg5 Qe7 Nh4 Ke2 Qhg7 Rb5 Qdf6
B1r2R1r/1kN3P1/r3B2r/R3bN1q/B3bb1B/Q2B2n1/bN1Q3n/2B1K1B1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 a4 c5 f4 Kc7 g4 h5 g6 e5 f6 b5 d6+ Kb7 f7 h4 a6+ Kb6 a7 e4 f5 c4 g7 c3 a5+ Ka6 d5 e3 f6 c2 g5 e2 d7 b4 d6 b3 g6 b2 Qd2 h3 Na3 b1R Nc4 h2 Nf3 Rb3 Nh4 Nc6 Nb2 Rh3 Nf5 Kb7 a6+ Kb6 Ra5 Be7 f8B Nd4 f7 Nf6 g8B Ng4 g7 Qe8 d8N Bf6 d7 Be5 Ne6 R3h6 d8B+ Kc6 Rg1 h1B Nc7 Be4 Bc5 Be6 f8Q Ba2 Bh4 Rc8 Be6 Nh2 Rg6 Qf7 Rf6 Qh5 Bb6 Ng4 Qa3 Nh2 Nd6 Nf5 Rf8 Ng3 Bg1 Qe8 Nf5 Qh5 Rc5+ Kb6 a8B Ka7 Bc6 Kb8 Kf2 e1R Ba4 Re3 a7+ Kb7 Rd5 Rc3 Bd3 Rc6 Ra5 Ra6 Ke1 Bc4 Qdc3 Ba2 Bf4 c1B Qd4 Be3 Qdb4+ Bb6 Bc1 Bf4 Qbc3 Bd4 Qd2 Bde5 a8B+
2QQ1b2/3QNB2/1bQNprR1/6n1/2nkb2K/2Rrr1Q1/1Pq1Q2B/1N1n3Q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb6 h4 c5 f6 g5 d6 a5 d7 a4 f5 c4 f7 c3 d5 Kc5 d6 c2 f6 g4 h6 a3 b6 a2 h7 Nc6 b7 Bh6 f8Q Na7 b8Q Nb5 f7 Bd2 h5 Ra5 h6 Qc7 d8Q Kd4 Qd7 Qc3+ Kh4 g3 Qe2 g2 Qfe8 Ra6 f8N Na3 Nh3 g1B Ng5 Bb7 Ne4 Nf6 Rh3 Nc4 Ng6 e6 Ne7 Rf8 h8Q Ra3 h7 Bh6 Bf4 c1R Bh2 Qc2 Rc3 Rd1 Qc6 Rd2 d7 Rd3 Nd6 Bg7 d8Q Ne4 Bg2 Ng5 Bf3 Rf6 Qed7 Bf8 Bh5 Re3 Bf7 Rb3 Qcc8 Be4 Qg7 Rd3 h8Q Be3 Qbc7 Bg1 Nd2 Be3 Rc1 a1N Qcc6 Bg1 Nb1 Ra3 Rb3 Re3 Rb5 Rad3 Qgh6 Qd2 Bf4 Rh3+ Kg4 Nf3 Nd5 Nc2 Qh4 N2e3+ Kh5 Rg3 Rc3 Nd1 Ne7 Qc2 Rg5 Be3 Rg6 Ng5 Qh1 Rf3 Bh2 Bf2 Bg1 Ke5 Bh2+ Rg3 Qh7 Bb6 Qh8 Kd4 Qh6 Nf3 Qf4 Ng5 Kh4 Rge3 Qg3
2R1rB1k/1R2n1R1/N4P1N/1n2Qb1R/r2QpQ1R/1B2qRnq/1R6/1Kb2q2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 f4 c5 h4 e5 d4 a5 Kd2 g5 Kc2 Kg7 f6+ Kh7 b6 c4 b7 a4 h6 c3 b5 g4 d6 a3 b6 g3 f5 e4 f7 a2 d7 g2 h5 Ra7 d5 Qc7 d8R Nf6 d6 Nfd7 Nf3 g1Q Ne5 Qg8 Qg4 Nc6 b8R Ra4 b7 Nc5 d7 Nb3 Rh4 Nba5 Bc4 Bg7 f8R Qd5 Nd2 Nb3 Nf7 Nca5 Ba3 Bd4 Rg1 a1Q Qf4 Nc1 Nb3 Bf6 Nc5 Bg7 Bb3 Qdc6 Na6 Q7b6 Bc5 Qa3 Kb1 Ne2 Rde8 Rg8 d8Q Qcb5 Qd4 Nc6 Rg6 Be6 Rec8 Ne7 Rg3 Bd7 Rf3 Rh8 Rg8 Ng3 f6 Qa7 Rh2 Bf5 Rb2 Bf8 Rg6 Bg7 Rg5 Re8 Rg6 Kg8 h7+ Kf8 Rg5 Bh6 Rg7 Qe2 Qfe5 Bc1 h6 Qf1 Bb4 Qc5 h8R+ Ng8 Rhh7 Ne7 Rg4 Qb6 Rh4 Kg8 Qf4 Ng6 Bf8 Ne7 Rc7 Qe6 Rbc8 Qc5 b8Q Qcb6 Qc4 Qe3 Rb7 Qd7 Qbe5 Qdd3+ Rc2 Qh3 Qcd4 Qdf1 Ra2 c2+ Ka1 Bd2+ Kb2 c1N Kb1 Qb5 Rb2 Nce2 Nd6+ Qc4 Rg7+ Kh8 Rh5 Bc1 Rh4 Bg4 Nf5 Nc3+ Kc2 Nb5+ Kb1 Qcf1 Rg5 Rc4 Rgh5 Kg8 h7+ Kf7 h8R Kg6 Ba2 Ra4 Nh6 Bf5 Rg8+ Kh7 Rg7+ Kh8 Bb3
1r4b1/R1NrbR2/n1p1RBR1/2qQ2R1/R2q1NR1/1n1B1kP1/1QN5/1r1n1K2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 d4 h5 b4 a5 d6 e5 d7 c6 b6 e4 d5 e3 b5 h4 d6 e2 b7 a4 f6 Ke6 f7 Kf5 b6 Ke4 g3 h3 g6 a3 g7 a2 f5 h2 f6 Ra5 Bg5 Ne7 g8R Rf5 Na3 Nd5 Nc2 Bh6 f8N Nc7 f7 Ne8 Nh3 Ng7 Ne6 Rf2 f8R Qf6 d8R Ne8 d7 Rf4 Nc7 Na6 b8Q Ng7 b7 Nf5 Rg6 Kf3 Rf7 Rd4 Re8 Bf8 d8R Be7 Rd7 Ne3 Nf4 Rg8 Rd5 Be6 Rc5 Qf5 Bf6 Rd7 Qd5+ Qe4 Rg1 h1Q Ra5 Qg2 Rh1 Qh3 Ra4 Qf5 Rh4 Nd1 Rhg4 Qe5 R6g5 Rh8 Reg8 Qd4 R8g6 Qc5 Qa8 Rhd8 b8R Re8 Rb7 Rb8 Rc1 a1N Ra7 Nb3 Qb7 Na1 Qb2 Nb3 Rh7 Bg8 Rf7 Nd4 Kd2 e1R Bd3 Nc3 Rca1 Rb1 R1a2 Nd1 R2a3 Ne2 Ke1 Nd4+ Kf1 Nb3 Ra5 Rc1 R3a4 Rb1 Re5 Rb5 Re6 Rb8 Qde5 Qeb4 Qd6 Qcd4 Rag5 Qbc5 Qd5+
1RR1R3/3p1bq1/1NN4Q/2r3q1/1nnPR2b/BQk2B2/rn5b/RR1R1K1N b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 b3 axb3 Qb6 b4 Qc7 b5 Qd8 d4 Kf7 h4 Kf6 f4 g5 c4 a5 b6 e5 b7 a4 h6 e4 h5 a3 h7 g4 h6 a2 c6 e3 c7 e2 c5 g3 c6 g2 Nf3 g1Q Ne5 Bc5 Ba3 Qh2 Qa4 Qf8 Nd2 Qe7 Bg2 Na6 b8R Ba7 Rbb1 Bb7 c8N Nb4 c7 Qh5 Nb6 Qg5 c8R Bb8 Nf1 Qeg7 Nc6 Ne7 Bf3 Ned5 Ng3 Ne3 Rg1 Re8 h8R Re5 h7 Nd1 Rhe8 Nb2 h8Q Rc5 Re4 Bc7 Kf2 e1B+ Kf1 Be5 Nh1 Bh4 Rd1 Ra6 Rab1 a1N Qh6+ Kf7 f6 Ke6 Rb8 Nb3 f7+ Kf5 Rc8 Na5 Re8 Nac4 f8R+ Bf6 Rg8 Be5 Rc8 Ra7 Rge8 Bb8 Ne5 Bd5 Nc6 Be5 Rb8 Bf7 Rec8 Q7f6 Ra1 Ke6 f5+ Kd6 Re8 Bh2 Rbc8 Qfg6 f6 Qg7 Rab1 Bg6 f7 Ra6 Na8 Kd5 f8R Bf7 Rb8 Ne5 Rg8 Kc4 Nb6+ Kc3 Rec8 Nec4 Rge8 Ra7 Rg2 N2d3 Ra2 Ndb2 Raa1 Qf4 Qb5 N2d3 Bc1 Ra2 Qa4 Qfg5 Ba3 Ndb2 Qb3+
1B2R2R/Q1n2R2/1b2b1RK/QnB1n2P/R1RNk1r1/1r6/2Bnp1q1/2N1R1n1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 Kg5 Ke5 f4+ Kd4 b4 c5 h4 e5+ f6 g6 d6 e4 f5 c4 h6 a4 h7 c3 h5 a3 b6 c2 d7 a2 b5 e3 b7 Qe8 d8R+ Bd6 f7 Na6 b8B Bb7 f8R Qe5 b6 Qe8 f6 Qe7 Nf3+ Ke4 d4 Qc7 f7 Ne7 d5 Qc3 Nd4 Nc7 Qd2 Bc8 b7 Nf5 Rg8 Be6 f8R Qb2 Rde8 Ra4 Rf7 Bc5 d6 Bb6 d7 Nd6 d8R Ndb5 Kh6 g5 Qa5 g4 Rc8 g3 Rg6 g2 Bc4 g1N Bb3 e2 Be3 c1N Bc2+ Nd3 Bf2 Rg8 h8R Ra3 Be3 Rb3 Nc3+ Ke5 Re1 a1N Na2 Ke4 Nc1 Qc3 Rh3 Qc6 Rhf3 Qd5 R3f5 Qc6 Rc5 Qd5 Rc4 Rg7 Ra4 Rg8 Rgf6 Rg4 Rg6 Qc6 Bd1 Ne5 Bc2+ Rd3 Bf2 Nb3 Be3 Nd2 Bf2 Na6 Rcc7 Qd5 Rcc4 Nac7 Nc6+ Bd4 Ba7 Qc5 b8Q Qa3 Qb7 Qc5 Bb8 Qf8+ Rfg7 Qf3 Rf7 Qh3 Qba7 Qg2 Bd1 Rb3 Bc2+ Kd5 Be3 Bb6 Bc5 Qf2 Bd1 Qg2 Nd4 Ke4 Bc2+
2q1nRBQ/Bn2Q2P/1QRrn3/1r2Q1Qb/QbN2Qn1/N4p2/N3k3/1nK5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 Kd2 f5 e4 c5 b6 f4 h6 a4 e6 Kf6 e7 a3 e8N+ Kg6 b5 g4 d6 Kh5 d7 a2 b7 c4 h7 f3 b6 g3 e5 Kg4 e6 g2 e7 Qc7 d8Q Be6 d5 Ra4 h5 Bd7 d6 Ra5 h6 Nf6 Na3 Qc8 Ne2 g1N Nc3 Na6 b8Q Ne2 b7 Nd4 Qa4 Kf4 Qb6 Bg4 d7+ Nc7 d8Q Rb5 Nd6 Nde6 e8Q Bh5 Qee7 Nce8 Kd1+ Kg3 Be3 Ng4 Rc1 a1N Na2 c3 Bc4 c2+ Kd2 Rg8 h8Q Rg6 h7 Rf6 Rhe1 Rg6 Qg5 Rh6 Qde7 Nb3+ Kd3 Na5 Kd2 Rf6 Bb3 Kg2 Ndc4 Rg6 Bd4 Rh6 Re3 Kf2 Qbf4 Rg6 b8Q Nb7 Qbe5 Rf6 Ra1 c1N Rc3+ Kf1 Kd1 Ne2 Rc2 Nc3+ Kc1 N6c7 Rb1 Rc6 Bc5 Ne6 Rbb2 Nb1 Rc3 Rd6 Rd2 Rc6 Rd8 Rd6 Bg1 Nef6 Be3 Ke2 Re8 Bg7 Rf8 Ne8 Nd2 Ke1 Qc6 Qc7 Qec5 Ned8 Bg8 Ne6 Q6d5 Bd4 Qde5 Ke2 Qca7 Bb6 Rc6 Qc8 Ndc4 Bc5 Q7a5 Bb4 Ba7+ Ne3 Qd5 Ng4 Qb6 Ne5 Qdc5 Ng4 Qce5+
qbQn2BB/B1R2QQ1/N1N2K2/4rn2/Qn3n2/6R1/3kP1p1/1Qrb1rQQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 Ke4 a5 d4 g5 b4 f6 h4 a4 d6+ Ke6 h6 a3 h7 g4 d7 c4 d5+ Ke7 Kf5 g3 b6 c3 b5 c2 h5 a2 h6 Ra6 d6+ Kf7 b7 Ra5 b6 Rc5 Nf3 Qc7 Bh3 g2 Nd4 Bg7 Na3 Rc3 e6+ Kf8 e7+ Kf7 Be3 c1N Qg1 Bf8 Nac2 Qd8 Nb4 Nc6 b8Q Nd3 b7 Nf4 Qa8 Rc1 b8Q Qa5+ Qb5 Nd8 Na6 Qa3 Rb1 a1N Rb3 Nc2 Nc6 Nb4 Ba7 Bb7 Rg3 Qa5 Ncb8 Bd5 Nc6 Bb3 Qb7 Qa3 Qa4 Bd1 Qbb5 Qa1 Qd3 Qa3 Qb1 Qf3 Nd4 Qa8 Nc6 Nde6 d8Q Bg7 Qc8 Nd8 Kg4 f5+ Kg5 Be5 d7 Ke6 e8Q+ Ne7 Qf7+ Kd6 Qg7 Re8 h8Q Kd5 h7 Bb8 Kf6 Kc4 Qhf8 Nb7 h8B Nd8 Rg4 Kc3 Qff7 Kd2 Rg3 Nfg6 Rh2 f4 Be6 f3 Rh7 f2 Qh1 Nf4 Bd5 Nde6 d8Q f1R Qb6 Nf5 Qbg1 Re7 Qfg6 Nd8 Bg8 Re8 Q6f7 Re5 Rh4 Ng6 Re4 Nf4 Ree3 Ra5 Re7 Re5 Rc7
q2nKb2/1N1RNn1B/2R2B1n/RQ3R2/Rr1Qk2r/1p1b1R2/P2n4/QRr5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 b5 d4 c5 h4 b4 h6 g6 d6 e6 a6 b3 d7 c4 h7 c3 h5 c2 a7 Nh6 d5 Nf7 h6 Rg8 h8R Bb4 h7 Ba6 d6 Nc6 Nc3 Nce5 Rh4 Qe8 d8R Ba5 d7 Nc4 Nd5+ Kg7 f6+ Kf8 Qd3 Bb5 Nf3 Bb4 Nd4 Be1 Nf5 Nce5 Nde7 Rb8 a8R Ng4 Nd6 Ngh6 Ra5 Bb4 Bb2 c1R Rb1 e5+ Ke4 g5 Kd5 g4 Ke6 e4 f4 e3 f5 g3 Nb7 Ba3 Rha4 e2 Qc4 e1N Bd3 Ba6 Qb5 g2 Rc8 g1N d8Q Bc5 Rc6 Nef3 Qd4 Nd2 Ba1 Nh3 Bc3 Ne5 f7 Kg7 f8R Qd8 Rf6 Nef7 Bc2 Qf8 Kd7 Nd8 Rfd6+ Kf7 f6 Ng5 Rd5 Ba3 Rf5 Rg7 Rg8 Bc5 h8Q Rh7 Qb6 Bd3 Qb5 Ng4 Ba1 Rh4 Rf3 Nh6 Bc3 Bc4 Bh7 Bd3 Rf5 Nge4 Rg3 Nd6 Rgf3 Qe8+ Kc7 Ke6 f7 Bb4 f8R Ba3 Rd5 Bb4 R8f5 Qg8 Rc4 Nd6f7 Rd7 Ba3 Qdc5 Qe8 Bf6 Bb4 Qd4 Bc5 Nc8 Bf8 Rc6+ Nd6 Qa1 Ndf7 Bd8 Ne5 Nc5+ Kd5 Qa6 Rbb4 Nb7+ Ke4 Qb5 Nf1 Bg5 Nd2 Ne7 Qa8 Qf6 Ng6 Qfb2 Nf4 Bf6 Ndf7 Nc8 Nd6 Kd8 Ndf7+ Ke8 Ne6 Qc3 Ned8 Ne7 Rc2 Qcb2 Rc1 Qd4+
1r2B2K/B4b2/6qQ/3BQ3/np4B1/1bBN1RNr/1P2Q1kB/Bnbr1R1r b - - 0 1 illegal: Other
6Q1/N1bbN3/1k1bnPR1/4QrNn/B1Q4B/1N1p1n2/r5NN/3KNRqn b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 e5 b4 a5 f4 d5 h4 Kd7 c6+ Kc7 h6 g5 h7 a4 f6 d4 f7 g4 h5 e4 b6+ Kd6 f5 e3 b5 Kc5 b7 g3 f6 e2 b6 a3 h6 g2 c7 a2 Qa4 Bf5 c8N Bd6 f8N Ra5 Na7 Na6 b8Q Bh2 b7 Ne7 Ne6+ Kb6 Ng5 Qd6 Nd2 Qb4 N5f3 Qd6 Nb3 Bg6 Qg8 Be5 c5+ Kc7 c6 Qe6 Qc4 Kb6 c7 Nc5 Bg5 Nd5 Bh4 Bf5 Nh2 Nf4 Ngf3 Nh5 Rg1 Bd6 Rc1 a1B c8N+ Kc7 Kd2 e1N Ne7 Nd3 Kd1 Kb6 Ne1 Qe3 Rb1 Ra2 b8Q+ Nb7 Be2 Bd7 Bf3 Bc3 Bc6 Ba5 Ba4 Qg3 Rf1 g1N Rb2 Qg5 Rg2 Nf3 Qbe8 Qe3 Rg6 Qg1 Qb8 Bg3 Qe5 Nbc5 Qg7 Ra8 h8N Ne6 h7 Rc8 Qf7 Rc5 Qg8 Bb4 Nf7 Nf2+ Kc1 d3 h8N Rd5 Ng5 Nh1 Kd1 Rc5 Nhf7 Rd5 Nh6 Bd6 N6g4 Bc7 Ne3 Rc5 Qb2 Rf5 N3g2 Bgd6 Qe5
B1bQn1Qr/1B1p1BN1/2nbr2B/4P2b/4BqR1/1K4B1/Bb1Rk3/2r1N2Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 b4 Kf5 e4+ Kg6 g4 f5 c6 a5 c7 h5 e6 h4 e7 h3 e8B+ Kg7 b6 f4 g6 Kf6 g7 Kg5 b5 h2 b7 a4 b6 a3 Nf3+ Kf6 g5+ Ke6 g6 a2 Nd4+ Ke5 Bg2 f3 Rg1 h1B Bf7 f2 Na3 f1R Ne6 Nc6 b8Q Ba6 c8B+ Bd6 b7 Re1 Kb3 Qf6 c4 Qe7 c5 Rf1 Bh6 Bb5 Nc2 Ba6 Ne1 Nb4 c6 Qg5 c7 Ne7 g8Q Nf5 Ng7 Kf4 Qh5 Ke3 Rd1 a1B Rd2 Nd3 Bf3 Qf4 Rg4 Bg2 Qh1 Bb2 Qd8 Ra7 Qa8 Nb4 b8B Rg1 Bb7 Nc6 c8B Be2 Bc7 Ra6 Qb8 Rf1 Ba8 Rg1 Bcb7 Kf2 Nc2 Rc1 Ne1 Ke3 Qg8 Bgf1 Qbd8 Kf2 Nh5 Ng7 Bb8 Ne8 g7 Ra5 Bg2 Re5 Bc7 Re6 Bf3 Be7 Be5 Bd6 Bg2 Qg5 Bg3+ Ke3 e5 Qf4 Be4 Ba6 Qf8 Bfe2 g8B Bf3 Ng7 Bfe2 Rg5 Bh5 Rg4 Nb8 Bbc6 Bc8 Bcb7 Nc6 Bgh7 Bba3 Qg8 Bb2 Bb1 Bba3 Ba2 Bb2 Rd5 Ke2 Be4 Rc5 Rd4 Rc1 Rd2+
3R2rB/b1n2qRq/R1N2rR1/2P5/1N2N1B1/1b3R1n/5RQp/Rbk1KbQ1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 c6 Ke7 Qd4 Ke6 g4 h5 b4 f5 c4 a5 e4 d5 b6 h4 g6 h3 g7 f4 b7 f3 b5 a4 c7 h2 b6 a3 g5 Bc5 g6 a2 Be2 Qd6 Nc3 Rh4 Nh3 Qf8 Nf4+ Kd7 e6+ Kc6 e7 Ra6 Rf1 Qe8 e5 Ra7 e6 Ra5 Nd3 Qd7 e8Q Rh8 e7 Na6 b8R Nh6 g8R Ng4 g7 Nf2 b7 Ba7 c5 Nh3 Rb1 a1Q Bb2 Qa2 Qg1 d4 Qeg6+ Qae6 e8R f2+ Kd1 Rb5 Rd8 Rb6 Q6g2+ Qe4 Ra1 Qe6 Nc1 d3 Bg4 d2 N1a2 Qf7 Rd3 Bf5 c8R+ Nc7 Rcd8 Bh7 Rf3 Qb1+ Ke2 d1B+ Kd2 Bb3 Ra8 Bb8 Ra5 Ba7 Ra6 Qbg6 Ke2 Qh5 Kd2 Bb1 Ne4 Kb5 b8N Kc4 Nb4 Qh7 Bd4 Rg6 N8c6 Re6 Re1 f1B Re2 Rd6 Ke1 Rg6 Rge8 Rd6 Re6 Rf8 g8R Re8 Rg5 Rg8 Rh6 Rdg6 Bh8 Rf6 Rg7 Ba4 Rf5 Kb3 Na2 Ka3 Rhg6 Kb3 Ref2 Ka3 Be2 Kb2 Nab4 Bb3 Bg4+ Kc1 R5f3
5B1K/1B2B3/1Pq1q1B1/Q4RQn/N3Bqr1/R1N4B/1B1p1q1n/Nb2krb1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 b4 d4 c4 d3 g4 e6 f4 d2 g6+ Ke7 g5 a4 b6 a3 b7 h4 c6 h3 g7 a2 c5 h2 f6+ Kf7 c7 Kg6 c6 Qe8 f5+ Kh7 f7 Qd7 g6+ Kh6 f6 Kg5 b5 Kh4 b6 Kg3 Ne2+ Kf2 Bh3 Qe7 Na3 Na6 b8N Nh6 g8B Rh7 g7 Qb4 Qa4 Qe7 Nc3 Nc5 Nc2 Ne4 Qa5 Ng3 Bb2 Nh5 Na6 Ra7 Rhc1 h1Q Nc5 Qf1 N5a4 Ng4+ Ke4 Nh2 Ke5 Rh6 Bh7 Rg6 g8Q Rg4 Bg6 Bh6 f8B Be3 f7 Ra8 Rab1 a1Q Re1 Qa2 Ra1 Qe8 Be7 Ba6 f8B Bd3 c8B Qb3 c7 Qc6 Na3 Bb1 Bb7 Re8 c8B Qb4 Bh6 Rf8 Nc2 Qfg2 Re2+ Kf1 Be4 Bg1 Ra3 Rf6 Na1 Rff4 Rf2+ Ke1 Rf3 Qf2 Bg7 Qf1 Bc2 Qbc5+ Nd5 Ke2 Bh6 Qb4 Qg5 Qg2 Rfd3 Rf1 Rf3 Qf2 Bd7 Qbc4 Be8 Qb4 Rf4 Qbc4 Bf7 Qb4 Bfg6 Qbd6+ Ke4 e5 Kf5 e4 Bhf8 e3 Rf3 Qb4 Bd3+ Kd1 Ke5 e2 Rf5 Qcc3+ Ke6 e1Q+ Kf7 Qbf4 Kg8 Qc6 Kh8 Qee6 Ndc3+ Ke1 Be4
1bNR3R/q2n2Bp/3Q2BP/5R2/2KR1R2/R3br1n/4Nq1k/QRnnr2B b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Qf6 cxd5 Bf5 gxf5 Qd8 e4 Kd7 Ke2 c5 Kd3 g5 h4 a5 b4 f3 b6 f2 h5 a4 d6 g4 b7 a3 b5 g3 f6 Ke6 b6 a2 h6 g2 f7 Ra3+ Nc3 Qd7 Rh4 Qc8 d7 Ra7 d8R Ra5 Bb2 Rb5 Rd4 Nc6 b8R Nf6 b7 Nd7 Na4 Bd6 f8R Qe8 Rf5 Qg8 Kc4 Nb4 Nb6 Qf8 Ne2 g1N Rhf4 Nd3 Bg2 f1N Bh1 Rb3 Nc8 Nc1 Ra8 Ra3 b8Q Rf3 Rb1 a1Q Ra3 Nh3 Qa7 Bb8 Qc7 Qf6 Qd6+ Kf7 d3 Kg6 e6 Re8 e5 Qf8 e7+ Qf6 e6 Ne3+ Kc3 c4 Kb4 c3 Qg1+ Ng4 Kc4 c2 Qf1 Ngf2 Bc3 Rh8 e8R Nd1 e7 Rf8 Rd8 Re3 e8B+ Rf7 Rab3 Qa7 Ra3 Re6 Rde4 Qh4 d4 Qe1 d5 Qef2 Bf6 Re5 Bg7+ Re6 Rf6+ Kg5 Rd4 Re4 R4f5+ Kh4 Qe1 Rf8 Bg6 Rf7 Rh8 Rf8 Nf4 Re7 Qc3 Re1 Qa1 Kg4 Ra6 Kg3 Ra3+ Kh2 Ne2+ Qg3 Rff4 Qf2 Rf7 Re8 R7f5 Re3 Qa6 Rf3 d6 Nd3 Qb6 c1B Qd8 Be3 Qe7 Nf6 d7 Nc1 d8R Nd7 Qd6
1RNq1Qrq/1N3B2/1Q3q2/K2n4/1B1rB1p1/1NN3Pk/NbR5/qq1N2nN b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 f5 exf5 b4 h5 b3 axb3 Bd7 b4 Be6 b5 Bf7 Na3 Nc6 Nb1 Bg6 hxg6 Nb8 b4 Kd7 d4 e5 Kd2 a5 Kc3 h5 f4 c5 f6 h4 f5 h3 g7 c4 b6 a4 g3 a3 b5 h2 d6 a2 Kb4 c3 d5 c2 f7 e4 f6 g4 b7 e3 b6 e2 Bd2 c1Q Nc3 e1Q Nh3 Na6+ Ka5 Qb1 b8N+ Kc8 d7+ Kb7 d6 Qh7 Bg2+ Qhe4 Nc6 Rh7 Ne5 Rc8 Nc4 Kc6 Rb1 Ra8 Qb3 Qc8 d8N+ Kd7 b7 Qe8 Nc6 Ke6 b8N Kf5 d7 Q1e2 d8N Bc5 f8Q Qf2 f7 Bd4 Nb4 a1Q+ Nba2 Nb4+ Na6 Ne7 g8B Nd3 Rhc1 h1Q Nb7 Qed8+ Qb6 Nf4 Nb2 Ne2 Nbd1 Nd5 Rc2 Ng1 Be4+ Ke5 Rb3 Qff6 Nhf2 Rb8 Nac5 Qb1 Ne2 Bb2 Bb4 Rh5 Nec3 Rf5 N5a4 Rf4 Nac5 Qhh8 Nh1 Qcd7 Bd3 Rd4 Be4 Qdd6 Qe8+ Qde6 f8N Qa1 Qf7 Qef5 Qg7 Qf1 Bf7 Qe1 Nfe6 Qf1 Qf8 Rc8 Ng7 Qd3 Rh2 Qdb1 Rc2 Rc6 Beg6 Bc1 Ba3 Be3 Ne8 Qf1 Ned6 Bc1 Nc8 Bb2 Nbd6 Qf3 Rb5 Qf4 Bb4 Rc7 Qa6 Qff6 Be8 Rg7+ Rb6 Rg8 Nb3 Qd7 Rb8 Qdd8+ Kb5 Qh3 Nb7 Qhh8 Bh5 Kf5 Bef7 Ke5 Qb6 Kf5 Ne2 Ke4 Ka5 Kf3 Bhg6 Kg2 Nec3+ Kh3 Be4
q5bR/1BBr3B/BN1bBPQp/R1n2R1p/4k1rB/Q6n/1B2K3/2rn2N1 b - - 0 1 illegal: Other
3N4/2N3KR/BQ1bN2n/2Np3q/pQN4r/N2b4/qnP2nk1/2B1RQNr b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 f4 g5 b4 a5 h4 a4 c6 d6 c7 g4 h6 g3 h7 g2 b6 Na6 b5 Qe7 b7 Rb8 h5 Bg7 b6 Bh6 Qe2 Qe6 Na3 Bg7 h6 Ra8 b8N Qa2 b7 Qb1 Nd7+ Ke7 b8N Qb3 f6+ Ke6 f7 Qb5 f8Q Nb4 Na6 Nd3 Qd8 Nb2 f5+ Kf7 f6 Kg6 f7 Bf8 Ndc5 Bf5+ Kd5 e4 c8N e3 Nc7 Bd3 Nb6 Kf5 Nbc4 Kf4 Ke6 Kg3 Rh5 Be7 f8N d5 Kf7 Bd6 Rh4 Qb3 Nfe6 Qa2 Kg7 Rc8 Qf6 Rf8 Qc3 Rf4 Qb4 Rd4 Bd2 Re4 Re1 Rd4 Rh5 Rh4 Bc1 Rh1 Nh3 g1N Qb6 Nf3 Ng1 Ne5 Rh2 Ng4 Rh4 N8f6 Rh5 Ne4 Rh4 Rc8 h8Q Nef2 h7 Nh6 Qf8 Re8 h8N Re7+ Kf6 Rh7 Nf7 Rh8 Nfd8 Rh7 Qd2 e2 Qdb4 Rh8 Qe8 Rh7 Rh5 Rh8 Kg7 Rh4 Rd1 e1Q Qe7 Qe4 Re1 Qf3 Be2 Kg2 Qe8 Nhg4 Rh7 Nh6 Qh5 Be4 Qe5 Qh5 Bd3 Bg6 Qe2 Bf5 Na5 Rh1 Ba6 Bd3 N5c4 Re8 Ng5 Re4 Nge6 Reh4 Qf1+
3bN1N1/n1NNrn2/bNq1p3/Q1R2Q2/1kB5/3bKpRr/P3N3/N1B2qB1 b - - 0 1 illegal: No possible last move
2b2B2/4b1QQ/1pnqQ3/rP4QQ/1rB4R/1RQNn2K/q1QR2p1/k5Nb b - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 h3 a5 b6 a6 Rh5 gxh3 Rh6 h4 Rh8 h5 Qd6 Ra2 Qc6 Ra1 Qb7 axb7 Ke7 Bh3 Kd8 Bf1 Ke8 Kf2 Kd7 Kg2 f5 d4 a5 b4 c5 e4 g5 h4 c4 b5 f4 e6+ Kd6 e5+ Kc7 h6 a4 e7 g4 e8Q c3 e6 Kd6 h5 c2 e7 a3 h7 g3 h6 a2 Rh4 Ra6 Na3 Bg4 Qh5 Nc6 b8Q+ Kd7 d6 Ke6 e8Q+ Kf6 d5 Bf3+ Kh3 Nge7 d7 Bh1 d8Q f3 d6 f2 d7 Ra5 Rb1 a1Q Qbc8 Qa2 Rb3 g2 Bg5+ Ke5 Bc4 c1Q Nc2 f1B Nb4 Qca3 Qc2 Bd3 Qb7 Be4 Nd3+ Kd4 Qeg6 Nd5 Be7 Qb4 Qe6 Ne3 Bd6 Qc5 Qdg5 Be7 d8R Qe5 Ba3+ Qd6 Qbd7 Rf8 h8Q+ Rf6 Qhg8 Rf4 h7 Bg6 Qf8 Be8 Qb7 Bd7 Qfh6 Bc8 h8Q+ Ne5 Q8h7 Nc6 Q6g7+ Ne5 Qc7 Qd7 Nc1 Bf6 Bf8 Be7 Bd5 Qc6 Qcg6 Qc5 Rb2 Kc3 Qb1 Rb4 Rb3+ Kd2 Qa1 Qd4 Qc5 Nc6 Qc4 Qd3 Qce4 Kc2 Bc4 Qa3 Qaf6 Qb2 Qfe5 Kb1 Qc3 Ka1 Rd6 Qd4 Qec2 Qe5 Rd2 Qd6 Qcf6 Ne5 Nd3 Qa2 Nb2 Nc6 Qd4 Qc7 Qdc3 Qd6 Nd3+
2B1krR1/6pQ/Q1K1nNN1/1r6/3q1P1B/nb1p4/QBB2B1B/Rrb2qB1 b - - 0 1 illegal: No proof kernel
B2K4/2Q1p1k1/N2p1r2/3P2QQ/n1N1qrbQ/B3R1Q1/1qnQ3R/3qQ1Nb b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 c4 Bg7 c5 Bc3 b3 Ba5 b4 Bb6 cxb6 Ba6 Qb3 Bb7 Qd1 Bc8 Ke2 Kf8 Kd3 a5 Kd4 c5+ Kd5 h5 d4 d6 f4 h4 g4 h3 g6 a4 f6 a3 g5 a2 f5 c4 g7+ Kf7 g6+ Ke8 b7 c3 b6 c2 b5 h2 f7+ Kd7 f8Q Rh3 f6 Na6 b8Q Ra7 b7 Rc3 b6 Nc5 f7 Rc4 Qh5 Raa4 Nd2 Ne4 Bg2 Ng3 Ba3 Ne4 Re1 c1Q Re3 Rc6 Nc4 Nh6 g8Q a1Q g7 Qab1 Qa8 Qe1 b8Q Qeb4 b7 Qc7 Qa5 Q4b2 Qd2 Nc5 Qh8 Qd3 g8Q Nf5 Qfh6 Qcb6 f8Q Q6b4 Qe1 Qd1 Qgg5 Rb6 Qhh4 Rb5 Qfg7 Rba5 Q8h7 Ke8 Kc6 Ra8 Kc7 R8a5 Re2 Ne3 Qc2 Ra8 Qcd2 Nc2 Re3 R8a5 Qa7 Bg4 b8N Rb5 Q7e5 Kf7 Na6 Rb8 Ba8 Rf8 Qgh5+ Kg8 d5 Rf6 Q6g5+ Kf8 Na5 Qe4 Kd8 Rd4 Nc4 Na4 Qgf5 Kg7 Q5g3 Qg2 Qc7 Rf4 Ne2 Qe4 Qfg5+ Rg6 Rf1 h1B Ng1 Rf6 Rf2 Rf4 Qf5 Re6 Rh2 Rf6 Qfg5+
4Q1NK/B2pn1Q1/4B1B1/1b1BB1rb/nRBpqQ2/P5b1/r1N1R3/1qB4k b - - 0 1 illegal: Other
nkBb1Q1N/q1p2Q1r/b1RB2R1/2P5/QqQ5/1Q1r3b/pn3NNK/Q3Q3 b - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 a5 Kf2 d5 Kg3 Kd7 c4 g5 b4 a4 h4 a3 h6 g4 h7 d4 c5 a2 e6+ Ke8 h5 d3 f6 d2 h6 Ba6 b6 Qc8 f5 Kd8 b5 Be7 b7 Qd7 b6 Qc8 f7 Bh4+ Kh2 Be2 e7+ Kd7 f8Q Bf2 f6 Bd4 f7 Bc4 Nc3 Bb3 Ba6 Nc6 b8Q Nf6 b7 Na5 Nge2 Nc4 Qe1 d1B Bf4 Nd5 Ne4 Nb2 Bd6 Bc4 Nf2 Bf6 Nf4 Nb6 Ng2 Kc6 Qa7 Qb8 Qg8 Bg5 f8Q g3+ Kh3 Bf1 Qc4 Bde2 Qff7 Rd8 h8Q Rd7 e8Q Bd8 Qee6 Bd3 Qff8 Rh7 Rd1 Bde2 Rd4 Bd3 Qef7 Bf5+ Rg4 Be2 Ne3 g2 Kh2 Bd7 Rg6 Bh3 Qhc3 Bd3 Qcc1 Bf1 Qa1 Be2 Kg3 g1Q+ Ng2 Qf1 Kh2 Bd3 Qec1 Qe1 Qe3 Qb4 Qee1 Qc8 b8Q Qb7 Qc8 Rb8 Q8e6 Na8 Qb3 Q7b6 Bc8 Ba6 Qec4 Q6a5 Rf1 Rb6 Ne4 Rb5 Rff6 Qb6 Re6 Ra5 Nf2 Ra3 Qbc2 Rd3 Q2b3 Bb5 Qaa4 Qa7 Bd7+ Kb7 Bc8+ Kb8 Ref6 Rg7 h7 Ba6 h8N Rh7 Be7 Rd7 Rc6 Rd3 Bd6
Rb5N/r2N2K1/1B3N2/1p1N4/bP2qNp1/NbRq2qn/BQ1Q1r2/k3R1N1 b - - 0 1 illegal: No possible last move
3R4/3r1Np1/p2N1NN1/Pb1N1bbK/1RB1q3/n1N2k2/r1rQb2R/BQN5 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Be7 gxh5 Bf8 e4 Qe7 f4 Kd8 f5 Kc7 f6 Nc6 e6 Qd8 e5 Nce7 fxe7 Kc6 Ke2 d5 Kf3 f5 e8N b5 c4 a6 h4 b4 a4 b3 a5 d4 e7 f4 e6 b2 Kg4 d3 h6 d2 h5 f3 h7 f2 h6 Qd5 Ne2 Qd8 Kh5 Qd7 Nd6 Qa7 e8N Qe7 Nf6 Ra7 Nbc3 b1B Bb2 Bb7 Nc1 Qc7 e7 Qd7 e8N Qe6 Ra4 Bf5 Rb4 Qe4 Nfd5 Be7 Rh2 Bg5 Ba1 Ne7 Nef6 Rc8 h8N Ng6 h7 Ne5 Nhf7 Ba8 h8R Rd7 Rd8 Bb7 Qb3 d1R Qb1 Rd2 Nb6 Qd4 Nce4 Kc7 c6 Ra2 c5 Nc4 Bd3 f1B Be2 Kb8 c7+ Ka7 c6 Na3 Bd1 Bb5 Bb3 Ra8 c8Q Qe3 Qc7 Rc8 Nde8 Qd3 Qd6 Ba8 c7 Kb7 Qf4 Kc6 N8d6 Qd4 Qd2 Bb7 Ng3 Kc5 Nge2 Bf3+ Ng4 Qe4 Nd5 Bg2 Ngf6 Bf1 Nec3 Bfc4 Nd1 Be2+ Ng4 Ra8 c8N Raa7 Nce7 Rac7 Ng6 Rc6 Bc2 Rc8 Bd3 Rcc7 Rb2 Kd4 Rb3+ Rc3 Rb2 Rc2 N1c3 Bf1 Bc4+ Bd3 Qg2 Bf1 Ngf6 Bd3 Nc7 Ke3 Qd2+ Kf3 Rb4 Be2 N7d5
q1B1N1k1/5p1b/n3prrn/2N5/3n1NR1/N2QKQn1/N1qR1PQ1/1NN3B1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 e6 e4 h4 d4 h3 e5 Bd6 exd6 Rh5 gxh3 Bb7 h4 Rh8 h5 Bc8 Kd2 Kf8 b4 c5 h4 g5 h6 a5 d7 a4 d6 g4 d5 a3 h7 c4 b6 a2 b7 c3+ Ke3 g3 b5 c2 b6 g2 h5 Qe7 d8N Ra6 h6 Qc7 d7 Qd6 Qf3 Qb4 d6 Qb2 Nc6 Ra8 d8N Na6 b8N Qg7 d7 Bb7 Ne5 Be4 b7 Qf6 Nc4 Bd3 Ne2 g1N Nbc6 Ra7 b8N Rb7 Nb4 Ne7 Rh4 Qf5 Nca3 Ra7 Rg4 Qf6 Nb7 Nc6 Nd6 Qh4 Ne8 Qh2 d8Q Rg8 h8Q Bh7 Qd3 Qh1 Qhc3 Rg5 Qg2 Nd4 Nd7+ Kg8 Nc5 Rg6 Bb2 Ngf3 Nc1 Nh2 Qb3 Ne2 Be5 Ng3 Qbd5 Rd7 Qdf3 Rd5 Bd6 Rf5 Be2 Rf6 Bf4 Kf8 Be5 Bg8 h7 Qd1 h8N Bh7 Bb8 Kg8 Bc7 Rg7 Ng6 Qh1 Nf4 Rgg6 N1b3 c1N Bf1 Nce2 Nc1 Nd4 Qdd1 Nb8 Ba6 Qf1 Bc8 Qc4 Qd3 Na6 Nd2 Qc2 Rb1 a1Q Rb2 Rg7 Ndb1 Rgg6 Bb8 Qa2 Be5 Qd5 Nba2 Qa8 Bb8 Qa4 Re2 Qc2 Rd2 Qd1 Rh4 Qc2 Nh5 Nh1 Bg3 Nc6 Nf4 Ng4+ Ke2 Nh6 Ke3 Nd4 Bh2 Ng3 Rg4 Qc4 Bg1 Qc3 Rg5 Qc2 Rg4
1N2b2r/4pk2/2N1qR1p/1B2RQrb/2R1Q1RR/bK2B3/2B1PRn1/R1b4q b - - 0 1 illegal: No possible last move, all moves rejected
4qr1R/b2n1pQ1/4R2R/Pb2QR2/3BBrR1/r2p2RK/N1pk3B/1R2n2N b - - 0 1 illegal: No proof kernel
k1B2B1R/b4bQR/BP5n/q1rB1pN1/1p6/NqpB3K/1QB2rB1/n4N2 b - - 0 1 illegal: No possible last move, all moves rejected
1K1bb3/1N2B1kB/3RprR1/1B2P1qQ/p1n4r/q1Nr4/N1N3p1/1QNN3N b - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 cxd5 f5 gxf5 Nc6 axb5 Ne5 h4 g4 Rh2 Nf7 Rh1 Ng5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 d4 Kf7 Kd2 h5 Ke3 a5 Kf4 c5 Ke5 e6 b4 g3 f4 g2 e4 c4 b6 a4 g6+ Kg7 b7 c3 b8N h4 d6 h3 d7 h2 b5 c2 f6+ Kh6 d5 Ba3 f7 Qh4 d8N Bc5 f8N Qe1 g7 Qg3 d6 Qe3 b6 Nf6 g8B Ra6 f5 Ra8 b7 Nd5 f6 Ra5 f7 Rb5 d7 Ne7 Nc3 Kg7 Ba3 c1Q Bh7 Qcd2 Ng6 Qh3 f8N Qdh6 Na6 Rb3 b8Q Be3 Kd6 Bb6 e5 Be3 Kc7 Qf4 Bb5 Qfg4 Nb4 Qc4+ Ndc6 Bc1 d8N Ba6 Nba2 Qch4 Nf4 Ng6 Qh5 Qf5 Nd7 Bb2 Nd1 Qhg5 Nb7 Rf3 Nfe2 Rd8 Be7 Ba3 Nh3 Nf4 Nf6 Rdd3 Nhf2 Qh3 Ncb4 Nd5+ Kc8 Qhg3 Nec1 Ne3 Nfd5 Rf6 Nc2 Nc4 N5c3 Bd6 Rb1 Bc7 Rb2 Bd8 Rb4 Nb2 Rd4 Nc4 Rd6 Qh3 Qa7 Qhe3 Kb8 Qc5 Qb6 Qa3 Re1 h1R Re3 Re1 Rh3 Re4 Nh1 Rh4 Qe8 Rhf4 Rh6 Rfd4 Qh5 Rh4 Na5 Bc8 Nb7 Bd7 Qg1 Bc6 Qe1 Be8 Qe4 Ne3 Qb4 Nc4 Qb2 Rf5 Qb1 Rf6 Rg6+
KBN2qB1/R2b1R2/1p1Q1rqN/pNNN1kn1/P1pQ4/R1N5/N2b2r1/4b3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 d5 gxh5 d4 b5 Na6 bxa6 d3 cxd3 Kd7 d4 Ke8 d5 Rh7 Ke2 Rh6 Ke1 Rh8 Ke2 Kd7 Kf3 e5 Ke4 c5 d4 g5 a4 g4 f4 b6 h4 g3 h6 g2 h7 Qc7 a7 Qd6 h5 Qg6 h6 Qd6 f6 Qc7 d6 Ke6 f5+ Kf7 Kd5 e4 d7 e3 d8Q e2 Na3 e1Q Ne2 g1B Bf4 Bg7 Nb5 Qd2 Ra3 Qe7 Kc6 Bf8 d5 Bf2 d6 Qe1 d7 Bg7 Nec3 Q1e3 Qd4 Bh4 Bc4+ Q7e6+ Kc7 Rb8 a8N Ne7 Ba2 Re8 h8N+ Kg8 h7+ Kf8 f7 Bgf6 Ng6+ Kg7 f8N Qd5 h8N Qe1 Ne6+ Kh7 Nf7 Qd1 Nfd6 Qe1 Ne5 Ng6 Ng4 Qf3 Bg3 Bg5 f6 Qff1 f7 Qb1 f8R Qbd3 Bd5 c4 Nc5 Nh8 Bg8+ Kg6 Kc6 Nf7 Nac7 Qh3 N7d5 Ra8 Qe7 Rb8 d8N Bd2 Kc7 Ng5 Nc6 Qc2 Ncb4 Qf1 Nba2 Be6 Rf2 Rbc8+ Kb7 Rc6 Nc8 Rf8 Re2 Rf2 Ka8 Rg2 Bb8 Qf8 Rf1 Bhe1 Rf7 Bf5 Re5 Rf6 Qd6 Qd3 Ree7 Be6 Rb7 Bd7 Ra7 Qe4 Rh7 Qee8 Re7 Kf5 Rg7 Qh5 Rf7 Qg6 Nh6+
2B1N2B/1B2Br2/Qpn1pB2/1K3p2/N1p4R/2B2nqQ/bP1RNr2/3k1Bb1 b - - 0 1 illegal: No proof kernel
Qkr5/2nB3R/1b1K2Nb/R1R1r2B/1B1PRN2/4B3/3Bnb1R/1n2N1rb b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Rh8 g5 Qd6 g7 Ra8 Bg2 Qg6 hxg6 Ng8 Bf1 Nb8 Ke2 Kd7 Ke3 e5 Ke4 c5 b4 Kc7 d4 h5 f6 a5 f7 a4 d6+ Kb7 Kd5 a3 d7 e4 d8R a2 b6 h4 b5 e3 Bd2 h3 Rh2 c4 Re8 e2 Qa4 e1B Be2 c3 Nf3 c2 Nc3 c1N Re4 Bc5 f8B Ba3 Bb4 Bf2 Kd6 Bf5 Ne1 Bc8 Nd5 Ra7 Bh5 Bf5 Nf4 Nf6 g8B Na6 g7 Be6 g6 Kb8 b7 Bd5 Be6 Rc8 g8R Ne2 g7 Nc7 Bd7 Bc1 Rh8 Ra5 g8N Bc6 Be3 Nfd5 Rh7 Ndc3 Ne7 Nb1 Neg6 Bd2 Re8 Bh1 Re4 Nbc3 Rc1 Nb1 Rc5 a1B Qa3 Bac3 Qa2 Ka7 b8B+ Ka8 b6 Kb7 Rc6 Re5 Rc5 Bc1 Ba3 Ba5 Bb4 Na6 Bc7 Ka8 Bd8 Nc7 b7+ Kb8 Bg5 Bb6 Qd5 Ka7 b8R Bd2 Rg2 h2 Qg8 Bc1 Ra8+ Kb7 Raa5 Kb8 Rg3 Bg2 Qh8 h1R Rh3 Rg1 Rh2 Bh1 Bed2 Rg4 Ne6 Rg2 Bge3 Rg1 Nef4 Rd8 Bdc3 Na8 Nfd3 Kb7 Bh6 Nc7 Qg8 Bg5 Bd2 Rde8 Qd5+ Kb8 Qc6 Rc8 Qd5 Bd8 Bhe3 Bg5 Ndf4 Bh6 Qa8+
3rnRq1/R2bkRr1/BPqbB3/3p4/n2NB2N/Q2N1B2/2R3r1/1RK1B3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 c5 exf5 c4 a4 c3 axb5 Rh6 dxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 e5 f4 g5 h4 e4 c4 g4 b6 d6 a6 g3 c6 g2 c5 Ne7 c7 Bd7 c8B Rh7 c6 Ra7 h6 Ra8 f6 Bg4 a7 Bf5 c7 Ng8 h5 Rg7 h7 Qd7 h8R Re7 h6 Na6 h7 Be6 f5 Qd8 Ne2 g1Q Nd4 Qg6 Nc3 Rg7 f7+ Ke7 Bg2 Bb3 Na4 Qe8 Nb2 Qf6 Be6 Rd8 c8B Nb8 a8B Nc6 Ba6 Bc2 Nd3 Bb1 Qb3 Qg6 Qa3 Na5 Bf3 e3+ Kd1 Qd7 Bd2 e2+ Kc1 Nc4 Bae4 Nf6 Be1 Qc6 Rh2 Ba2 Rb1 Ne8 Rg8 Bb3 h8N Ba4 Rf2 Qh7 Rh2 Rg2 Rg7 Qg8 Rgh7 Qc7 Rg7 Bd7 Rgh7 Qc6 Ng6+ Kf6 Rg7 d5 Nh4 Bd6 Rh7 Ke7 f8R+ Rg7 Rg2 Bc5 Rh2 Nb2 Rg2 Na4 f6+ Kd6 f7 Ke7 Rg1 Rg2 Rb2 Bd6+ Rc2 Qg7 Rg8 Qh8 Rgg7 Qg8 f8R+ Qf7 Bd2 e1R+ Bd1 Re3 Kb1 Kf6 Bh5 Reg3 Bhf3 Bc8 Rd1 Rg4 Be1 Rg6 Rfg8 Qf8 Ra7 Bd7 Rgh8 Qg7 Rf8+ Ke7 Rdc1 Nc3+ Kb2 R6g5 Ra1 Na4+ Kc1 Qf7 Rb1 Rg6 Rh5 Qg8 Rhf5 Rg7 R5f7+
Rnk5/1b1q4/qBNb1K2/1P3bB1/QR3N2/nBp1N1B1/1N4R1/NB3qr1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 f4 h4 f3 hxg5 Na6 g6 Rb8 g7 Rb6 g5 Rf6 g6 Rf5 Rh5 Rg5 Rh1 Rg3 fxg3 Nb8 g4 f2+ Ke2 Qd7 g5 Qd6 Bg2 f1N Ke1 Ne3 Bf1 Nf5 exf5 Qd8 Kf2 Kd7 Kg3 h5 Kf4 c5 Ke5 h4 d4 a4 b4 h3 f6 c4 f7 h2 d6 e6 b6 a3 d5 a2 b5 c3 b7 Qb6 Nh3 Qa6 Nf2 Qb6 Nd3 Rh5 Qa4 Rh3 Na3 Nh6 g8N Qc6 g7 Na6 b8B Re3+ Kf6 e5 g6 e4 Nc2 Rg3 Ne7 e3 g8R e2 g7 e1Q Nb2 Kd8 Bg5 Nc5 Bd3 Re3 Nf5 Re4 Nfe3 Qc7 d7 Qa7 Bg3 Nf5 Rf1 h1B Rf4 Re7 Rb4 Nd6 Bf5 Kc7 d8N Na6 Nc6 Nb8 Bg6 Re5 Bf5 Nc4 d6+ Kb7 d7 Na3 d8B Qf1 Bb6 Bd6 f8N Re4 Ng6 Rg4 Nf4 Qa6 Bh7 Bf5 Bg6 Qd3 Rg1 a1Q Rg2 Qaf1 Na1 Qdd1 Rh8 Qd5 g8B Kc8 Nd8 Qc6 Bb3 Qd7 Rf8 Be6 Bb1 Bf5 Rg1 Bhe4 Rg2 Bb7 Nc6+ Qe8 B3h4 Kd7 Na7 Nc6 Rh2 Rg1 Rg2 Qc8 Bg3 Qc7 Ra8 Nb8 Nc6 Kc8 Bd1 Qd7 Bb3
2b1Nb1K/2Np1P2/nr2bNRB/BNQ4b/2N5/1kR2B2/1n2r2b/1B2RB2 b - - 0 1 legal: proof: d4 b5 h4 f5 e4 g5 hxg5 c5 dxc5 e5 f4 b4 fxe5 b3 axb3 f4 b4 Qf6 b5 Qf5 exf5 Be7 Kd2 Bd6 Ke1 Bf8 Kf2 Ke7 Kf3 a5 Kg4 a4 Kh5 a3 b4 h6 Kg6 f3 c4 a2 g4 f2 c6 h5 f6+ Ke6 f7 h4 c5 h3 b6 h2 b7 Rh3 b5 Be7 Kg7 Bd6 g6 Rha3 c7 Nc6 b8N Re3 b6 Ra5 g5 Nd8 b7 Bf8+ Kh8 Rb3 c6 Ra8 g7 Rg3 g6 Rf3 Qd6+ Kf5 e6 Ke4 e7 Rg3 e8N Be7 Ne2 Rg1 Bh6 Ne6 Nd4 Nf4 Na6 Bf8 b8B Nf6 g8B N6d5 g7 Nd3 Na3 Rg6 Qc5 Nb2 Bh7 Nb4 Rg1 h1B g8N Bf3 Nc4 Bh5 Nb5 Ra7 Rb1 a1B Rg2 Rb7 Ba7 Rb6 Re1+ Be2 Rg4+ Kd3 Ngf6 Kc2 Rg2 Bh5 Rg5 Rb7 Bb6 Kb3 Ba5 Rb6 Rg1 Rg5 Bb1 Re5 Rg6 Re6 Be2 f1B Bf3 Bb7 c8R Re2 c7 Bh3 Rb8 Bf5 c8B Be6 Nac7 Na6 Ra8 Nd1 Rb8 Be5 Ra8 Bh2 Rb8 Bbd5 Bb7 Nb2 Rc8 Bc6 Bg2 Be4 Bf1 Bd3 Bf3 Be4 Na8 Bb7 Rc6 Bc8 Nac7 Rf2 Rd6 Rg2 Rdd1 Rf2 Rc1 Re2 Rc3+
5K2/B4B2/NQ5P/bBN1B3/b1N1p2k/B1nnRN1n/1Rr1r1r1/Rr4N1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 d5 exf5 b5 a4 d4 axb5 d3 cxd3 a4 d4 Qd6 d5 Qb6 Ke2 Rh7 Ke1 Qa5 bxa5 Rh8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 c5 h4+ Kh6 d4+ g5 f4 a3 a6 c4 a7 c3 b6 c2 d6 g4 b7 g3 d5 g2 d7 e6 d8B a2 d6 Na6 b8N Bb7 d7 Bc6 f6 Bd5 f5+ Kh7 h6 Nb4 h5 Be4 f7 Bf3 f6 Bc5 f8R Be7 f7 Bg5 Kd6 e5 Bb5 e4 Bb6 Bh4 d8N Bg4 Ndc6 Nd3 Na5 Be2 Rh2 Bg5 Nd2 Bf6 Na6 Bb2 Ndf3 Nf6 Ke7 Rg8 Nc4 Bc3 Ba3 c1R Qb3 Rc2 Qb1 Rc8 a8B Ba5 Ba7 Bd1 Bd5 Re2 Rh3 Rc5 Rb8 Ba4 Rg3 Rg6 Kf8 Rc6 Be6 Nd5 Qb4 Rg7 Qc5 Nc3 Qb6 Kh8 h7 Rg6 Ke7+ Kg7 f8N Kh6 h8B Rc8 Nd7 Rg5 Nh3 g1N Be5 Rg4 Bf7+ Rg6 Rb1 a1R Ndc5 Rcc6 Rb2 Rb1 Kf8 Rc7 Ra8 Rcc6 Nhg5 Nh3 Ng1 Rg7 N5f3 Rg4 Nd4 Kg5 h6 Kh4 Re3 Rgg2 Ndf3+ Kg4 Rd8 Rf1 Beb8 Nd5 Be5 Ne1 Nd6 Rc8 Nd3 Rcc2 Ndc5 Nc3 Nh4 Kg5 Nc4 Kg4 Rd2 Nd3 Rd1 Rfe1 Ra1 Rb1 Bg8 Kg5 Nhf3+ Kh5 Bf7+ Kg4 Nfd2 Kh4 Ndf3+
q2N1nn1/B2R2R1/K1BqP1p1/RB1Q1b2/R1BRn3/2k1N3/3b1Bq1/2b1N3 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 h4 a5 Nf3 f5 Ng1 f4 Bh3 Ra6 Bg2 Rf6 Bf1 Rf5 gxf5 Bc5 Qa4 Bd6 Qd1 Bf8 h5 g6 h6 Ne7 Ra2 Rg8 Ra4 Rg7 hxg7 h5 Ra1 Ng8 d4 Kd7 Kd2 c5 Kd3 a4 Kc4 a3 b4 a2 e4 f3 b6 f2 Kb5 h4 f6 h3 e6+ Kd6 f7 c4 e7 c3 e8B c2 b7 h2 e5+ Ke7 d6+ Ke6 d7 Kd5 Nd2 Bd6 f8R Nh6 g8B+ Nf7 Nc4 Nc6 b8R Qg5 d8R Na5 Nf3 Be6 Ra8 Qh5 Rd7 Bh3 Ka6 Qf5 b5 Qh5 b6 Nb3 b7 Qf5 b8B Qe6 Be3 c1B Ba7 Bf5 Ne1 Nh6 Rff7 Qf6 Bd3 f1Q Bf2 Qg2 Rg7+ Qe6 Rf1 h1N Be2 Ke4 d5 Ng3 Ne3 Nd4 Bb5 Bb4+ d6 Bbd2 Rg1 Qe7 Bgc4 Ne6 Qb3 Nf8 e6 Qd8 Rh1 Ng8 Rh4+ Ke5 Rd4 Qe7 Rb7 Ne4 d7 Qb4 d8N Qc5 Bec6 Qd6 Rb1 a1Q+ Qa2 Qc3 Rbd7 Qd3 Rb4 Qdf1 Rd3 Qfh1 Ra3 Qh8 Ra5 Qhh1 Rba4 Qh8 Rb8 Qhh1 Rb6 Kd4 Rb8+ Kc3 Rbb7 Qb8 Rd4 Qa8 Rbd7 Qhh2 Be2 Qe5 Qd5 Qd6 Bec4
k1BK3Q/2rN1Rn1/2B3p1/1Nn1BpR1/N1q4B/2N1P1b1/n5NR/2qBr3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 Kd3 f5 Kc4 g6 Kd5 a4 b4 a3 c4 a2 h4 d6 h6 Kd7 h7 Kc7 b6+ Kb7 e6 Nh6 b5 Qg5 h5 Qe3 e7 Ng4 e8B Nh2 h6 Bd7 c6+ Kc8 b7+ Kc7 c5 Bg7 b6+ Kd8 c7+ Ke7 c8B Kd8 c6 Bf8 c7+ Ke7 Bg2 Nc6 b8R Ng4 b7 Ra3 Qd4 Ra6 Nh3 Nd8 Rh2 Rg8 h8N Ra4 h7 Ne6 Nf7 Qf4 h8B Nf2 Be5 Bg7 Bf3 Rc4 Nc3 Nd3 e3 Ndc5 Ba3 Rh8 Rg1 a1Q Rg5 Qc1 Bd1 Qf1 Nf4 Bf6 Bb4 Ng7 Ng2 Bb5 Bc6 Rh6 Rg4 Bh4 Rg5 Bg3 Ra8 Qd3 b8N Rh4 Ra4 Rf4 Ba3 Rf1 Ra7 Re1 Ba8 Be8 Nd7 Qe2 Kc6 d5 Qh4 d4 Nd6 d3 Ndb5 d2 Qh8 Ke6 Kb6 Qd3 Baf3 Qf1 Ne4 Kd5 Bab2 Rc2 Bf6 Qc4 Bbe5 Na4+ Kb7 Nc5+ Kb8 Kc6 Nec3+ Qe4 Ba6 Qd5 Kc8 Qe4 Kd8 Qd5 Ne4 Qc4 c8N Rc3 Ncb6 Rc2 Bde2 d1N Na4 Nc3 Bc8 Na2 Bd1 Rc3 Rgh5 Rc2 Bh4 Rc3 Rg5 Rc2 Nf8 Rc3 Rf7 Rc2 Bd7+ Kb7 Bc8+ Ka8 Nec3+ Bc6 Nd7 Rb2 Nd6 Rb7 Ndb5 Rc7 Bxc6+
2Q5/B6N/1NBNR3/R1B1n1Bp/2q1p1R1/K1PN1b1p/1rk1rN2/2bB2b1 b - - 0 1 illegal: Other
1N1b1kN1/Qq2pb2/PB1n2B1/R1B3N1/1K1Nn2R/5p1n/1pRN3B/1B2r3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 c4 d5 cxd5 Ra7 b4 Ra6 bxa5 Ra8 fxg5 b5 e4 Qd7 d4 Bb7 e5 Qd8 d6 Bc8 d5 Ra6 Bb2 Bg7 Bc1 Kf8 d7 Rd6 exd6 Bh6 Bd3 Kg7 Bc4 Kh7 Be2 Bf8 Bf1 Kg7 Kd2 f5 Kc3 c5 h4 f4 a4 f3 g6 c4 a6 Rh7 h6+ Kf6 g7 Kf7 h5 Qc7 d8R Nd7 a5 Ndf6 d7 Ne8 a7 Qh2 a8B Bb7 a6 Qf2 d6 Bd5 Be3 Be4 Ra5 Qe2 Bc5 Bd5 Qd4 Bb7 Nd2 Be4 Rc8 Bb7 d8B Bd5 d7 Nef6 Bdb6 Qe4 Bd3 Ne8 Ne2 Nd6 Bb1 Nf6 g8N Bg7 d8N+ Kf8 Rh4 Bf7 Kb4 c3 Bd5 Rh8 h7 c2 h6 c1N Bda2 Qb7 Bg6 Nfe4 Bb1 Be5 Nc6+ Ne8 Qd7 Bc7 Nb8 Bd8 Nd4 Ne2 Rc6 Nf4 Rc8 Qd5 Qa7 Qa8 Bc7 Nh3 Bh2 N8d6 Bb6 Bd5 Rc2 Ba2 Nf6 Rg8 h8B Bf7 h7 Rg7 Ng8 Qb7 Bf5 Rg3 Bg6 Rg1 Bf6 Re1 h8N Be6 Nf7 Bb3 Ng5 Bf7 Ka3 b4+ Ka4 b3 Kb4 b2 Bfe5 Re2 Bg1 Re1 Beh2 Nef2 N4b3 Nfe4 Bc5 Qa8 Nd4 Qc6 Rf4 Qb7 Rh4
bR2R1Q1/B3K2N/2qr2Br/2b2N1B/1q1nnk2/1qN1r3/P1RR1R1N/2n4N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 b5 d4 c5 h4 b4 h6 g6 d6 e6 a6 b3 d7 c4 h5 b2 d5 c3 a7 c2 d6 Qb6 d8N Nd7 h7 Qc5 h6 Ba6 Be3 c1Q Qg4 Bg7 Nf7 Bd3 Nh3 Qc7 Be2 Nb8 Ne5 Bc4 d7 Qb6 d8N Na6 Nb7 Qd2 Rh2 Qdb4 Nf3 Qd8 Nc3 b1Q Nd6 Rc8 a8B Bf8 Be4 Qc7 Ba7 Q1b3 Rc1 Nc5 Rc2 Rd8 Rg2 Ba6 Nh2 Qc6 f3 Be7 Nf2 Bb7 Nh1 Ba8 Bd1 Bf8 Rgd2 Ne7 Qg2 e5+ Kg4 g5 f4 Rg8 h8R Rg6 h7 Rh6 Rg8 Rd7 h8R Rd8 Bd3 e4 Bf3 e3 Bfe2 Bg7 Re8 Bf8 Qd5 Ne4 Qg8 Rg6 Kh5 g4 Kh4 g3 Bh5 Rd7 Rb8 e2 Re8 Rh6 Rb8 Nc8 Kg4 Ke7 f6+ Kd8 Kf5 Kc7 f7 e1R Ng4 g2 Qg6 g1N Nh2 Nc5 Kf6 Re3 f5 Ne2 Be4 Nd3 Rg8 Q3a3 Ke6 Qaa4 f6 Ndc1 Qg2 Be7 f8N Nd4+ Kf7 Qaa3 Nh7 Qab3+ Ke8 Bf8 f7 Be7 Qg4 Bf8 Qg7 Be7 Beg6 Bf8+ Nde4 Bc5 Rh8 Nd6+ Kf8 Qbb5 Neg3 Ne4+ Ke8 Kd6 f8R Qbb7 Rff2 Q7b4 Nf5+ Ke6 Qf8 Ke5 Qf7 Rd6+ Ke7 Qcd5 Rhe8 Qc6 Nf3+ Kf4 Qg8 Rd3 Nh2+ Rf3 Rfe2 Re3 Rf2+
1nRR2R1/1R1B1N1r/1qn1NBbb/2n5/4PrnR/3B2N1/b2B2QB/k3Kn2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 e4 f5 b6 c5 b7 a4 h6 a3 b5 c4 h5 c3 d6+ Ke6 b6 a2 h7 c2 d7 f4 h6 g4 Nf3 g3 Qd2 g2 Bd3 g1N Nc3 Nf6 Ne2 Ng4 Rb1 a1N Rh4 Nb3 Ng3 Nc5 Qg2 Ne2 Bd2 c1N Rb3 Qf6 d8R Na2 Rb2 Bd7 Rc8 Be8 Rb4 Bg6 d5+ Kf7 d6 Ke6 Rb3 Nb4 d7 N4c6 d8R Bg7 Rb1 Rf8 h8N Ra7 h7 Bh6 Rb4 Rf7 Rg8 Rf8 Nf7 Qd8 Nh2 f3 h8B Qd4 Bf6 f2+ Kd1 f1B Nf3 Qd8 Ke1 Qc7 Nf5 Ng3 N3d4+ Kd7 Rb5 Be2 Rb2 Nf1 Ng3 Bd1 Rb1 Bb3 Ne6 Ba2 Rb4 Ne7 Rd8+ Kc6 Rc4 Kb5 Rc2+ Ka4 Rc1 Nba6 b8R Kb3 b7 Kb2 Rbc8 Nfe3 b8B Nc6 Rc2+ Kb1 Rb2+ Ka1 Rb7 Nf1 Nf4 Qd7 e6+ Qd4 e7 Qb2 Bc7 Nab8 e8B Qd4 Ne6 Qb2 Ne5 Qb6 Bd7 Rf7 Bfg5 Rh7 Nf7 Ra5 Nh1 Ra8 Bh2 Ra6 Ng3 Ra3 Be2 Rf3 Bd3 Rf4 Bf6+
4R3/b3B3/1RnQ1r2/2B1B3/1nR2rbK/bNPq2R1/1nRNq2B/kb3B1N b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 f4 Kf6 Kf2 e5 Kg3 g5 b4 d5 c6 a5 b6 a4 h6 d4 b7 d3 c7 d2 h5 a3 c3 e4 h7 a2 b5 g4 h6 e3 b6 e2 Kh4 e1N Ba3 g3 Bc5 g2 Rh3 Qe7 Ne2 g1Q Ng3 Nc6 b8R Qh2 b7 Qd6 Nh1 Qe2 Rg3 Qdd3 Be7+ Kf7 f6 Ke6 f5+ Kd5 f7 Kc4 f6 Bg4 c8R Ra6 Rc7 Bg7 f8N Rb6 f7 Nf6 Rcc8 Nd5 Nd7 Nb4 f8B Bd4 Nc5 Ra6 Nb3 Ba7 Bc5 Rg8 Bfe7 Rf8 h8B Rf4 h7 Rb6 Qc2 d1B Qd2 Bc2 Be5 Ra6 h8R Rb6 Nd4 Ra6 Rhe8 Rb6 Nf5 Kb3 Nd4+ Kb2 Nb3 Ra6 Qd1 Rb6 N1d2 Ra6 Rc1 a1B Rf8 Bb1 Rfe8 Ka2 Rc2+ Bb2 Ra8 Rb6 b8B Ra6 Bbc7 Rb6 Rab8 Ra6 Nc1+ Ka1 Rb6 Ba3 Bc7d6 Qde4 Bc7 Ned3 Bb8 Nb2 Ncb3+ Ka2 Rcd8 Q4e3 Rd4 Q3d3 Rc4 Nd8 Rb5 Raf6 Rb6 Ndc6 Ne4 Qde3 Qd6 Q3d3 Ned2 Bd7+ Rg4 Nd8 Qd4 R4f5 Bh2 Ndc6 Bbe5 Rf4 Qd6 Bc8 Kg5 Bf5 Rg3 Bg4 Na5 Ka1 Kh4 Qe1 Be3 Qf2 Bc5 Qfe2 Nab3+
3b1R1b/1Rnq2R1/R1krbB1N/2n3n1/1Q3p2/N2rB3/1BPNBRr1/1K2B3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 d5 h4 Kd7 b4 g5 e4 a5 b6 f5 c6+ Ke6 h6 g4 b7 d4 h5 a4 b5 g3 h7 d3 c7 Kd7 h6 g2 b6 a3 e6+ Kc6 e7 a2 e8N Be6 c8R+ Kb5 e5 Qd6 Nf3 g1N Rh2 Nf6 Rc7 Bd7 e6 Ne2 e7 Nc3 Ng7 Ra7 e8R Qe5 Rf2 Nfd5 Be2 Qd6 Na3+ Kb4 Qe1 Na6 b8R Be7 b7 Bd8 Rf8 Rg8 h8B Nc5 h7 N3e4+ Kd1+ Ka4 Be3 Ra6 Kc1 Ng5 Nd2 Be6 Kb2 Ka5 Qb1 Kb6 Kc1+ Ka7 Qb4 f4 Nf5 Qd7 Nh6 Rc6 Bc3 Rd6 h8B Ka6 Bhf6 Ka7 Rb1 a1B Rb2 Rg7 Kb1 Rg6 Rc6 Nc7 Rc8 Rg7 b8B+ Ka8 Rb3 Bb2 Rf7 Rg8 Rg7 Ba1 Nb5 Kb7 Ra6 Bb2 Ba7 Ba1 Bb6 Kc6 Na3 Bb2 Nf3 Ba1 Be1 d2 Rb8 d1R+ Bc1 R1d2 Bcb2 R2d3 Nd2 Be7 Rf8 Bd8 Rgf7 Nf3 Re7 Rg2 Rg7 Ng5 Ra7 Na4 Be3 Nc5 Ra6+ Kd5 Qa5 Bf5 Bbe5 Bc3 Re7 Bh3 Bh8 Bb2 Rb7 Be6 Qb4 Bc1 Ba1 Bb2 Rh7 Bg7 Bb2 Bd4 Bf6 Be5 Be7 Bg7 Bef6 Bh8 Ra8 Kc6 Rg7 Nb3 Ra5 Nc5 Ra6+
2bN1rn1/1BKBB2r/1N1n4/1rRNN2R/6q1/1qR1pPb1/BB2k2N/Q2q4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 a5 g4 e5 d4 h5 b4 e4 b6 e3 Kb5 c4 b7 a4 d6 a3 d5 h4 d7 h3 d6 c3 f6 Ke6 f7 Ke5 g6 Ke4 g5 h2 g7 c2 g6 a2 Bh3 Qe8 Kb6 Qe7 d8N Nd7+ Kc7 Ngf6 b8R Nh7 g8B Nhf6 g7 Qe6 b5 Kf4 b6 Qb3 b7 Qd3 Nf3 Nb6 d7 Qd2 Nc6 Ra4 d8N Nc4 Nce5 Rb4 Bb2 c1R Nc3 Rb6 Bd7 Rb5 Nd5+ Ke4 Qa4 Be7 f8B Rf1 Rc1 a1Q Rc3 Qb1 Qa1 Qd4 Bf7 Rh6 g8B Rh7 Bfe8 Ba3 Be7 Nd6 Bc6 Qbd1 Bed7 Qb3 Ra8 Qda4 b8N Bb4 Bf7 Ng8 Ra5 Bc5 Bb7 Qab4 Rg1 h1Q Rg5 Qh5 Nh2 Qhd1 Rh5 Bd4 Nc4 Be5 Ncb6 Bg3 Nbc6 Qbd4 Bfe6 Qg7 Ne5 Qgg4 Ra3 Kd4 Rc5+ Ke4 Nec4 Kd3 Ne5+ Ke2 f3 Rh1 Bf5 Rf7 Bb1 Rf5 Ba2 Rf8 Nf1 Rh3 Nh2 Rh4 Ra4 Rh3 Rac4 Rh4 Rc3 Rh3 Rf5 Rh7 Rh5
1Nb1Bn1q/4QN1R/2q2r2/B2bKpB1/R1r4n/5P2/2RNBBR1/n3Rq1k b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 Kd2 Kd7 Kd3 a5 Ke4 e5 g4 h5 b4 c5 f3 f6 b6 c4 b5 h4 g6 c3 g7 a4 g5 h3 g6 c2 b7 h2 b6 a3 Qe2 a2 Be3 c1Q Nd2 Ne7 g8R Rh3 g7 Qe8 Bf2 Rg3 Nh3 Rg2 Ng5 Ra6 Nf7 Qc6 Re1 a1N Qe3 Qf8 Be2 Ng6 Kf5 e4 Qg5 Ke8+ d7+ Ke7 Qh4 e3 Ke4 Nh8 d8R Nd7 b8N Ng6 b7 Rg3 Qg5 Nh4 Kf4 Ra4 d6+ Ke6 Qc5 f5 Re8+ Kf6 Re4 Rg1 d5 Rc4 Qa3 Qd8 Qb4 Nf8 d7 Rg6 d6 Qe8 d8R Rh6 d7 Kg6 Qe7 Kh5 Ke5 Rf6 Rhg1 h1B Rg2 Rc3 Rh2 Bg2 Ra4 Bf1 Rg2 Rc4 Rh8+ Nh7 g8B Qf8 Bd1 e2 Re8 Qh6 d8B Nf8 Ba5 Qh7 Bc2 Qh6 Bd3 Qh7 Rc1 e1Q+ Be2 Qh6 Rh7 Qd1 Rhg7 Qh8 Rc2 Qc1 Bd1 Bd3 Be2 Be4 Bh7 Bd5 Bg8 Qh6 Rh7 Qg1 Na6 Qd1 b8B Qf1 Bba7 Qa8 Nb8 Qc6 Rhg7 Qh7 Bae3 Qh8 Bh6 Bde6 Rh7 Bd5 Rgg7 Ng2 Rg3 Kh4 Rg4+ Kh3 Bg5+ Nh4 Rg2 Bde6 Nd8 Bd5 Bf7 Qg7 Bh5 Qg8 Nf7 Qh8 Rg4 Kh2 Rg2+ Kh1 Rd8 Rd4 Ne4 Qb6 Nfd6 Ba8 Be8 Bab7 Nf7 Rc4 Rd1 Bd5 Re1 Qc6 Nd2
q3N2K/kRr1B1P1/3q4/2b3Bb/1Bp2r2/3R3N/nRrBnN2/RB2nR1Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 Ke5 Kb6 f4 h5 d4 a5 b4 a4 g4 a3 d6 e6 f6 a2 d5 h4 d7 c4 f7 h3 f5 h2 d6 Bh6 f8B Qe7 d8R Qd7 f6 Bb7 g6 Ka7 b6+ Ka6 g7 Qc6 g5 Qc7 f7 Bg2 b7 Bf3 b5+ Kb6 g6 Bg5 Bd3 Ne7 g8N Ra4 Nd2 Rh3 Ne4 Bh5 Nf2 Nf5 Nf6 Rf3 Ngh3 Be3 Bb1 Ra7 Ne8 Ng3 Bd2 Bc5 Rf1 h1R Be7 Rf4 f8B Na6 b8R+ Rb7 Qf3 Rh2 Qh1 Ne2 g7 Qc6 d7 Nb4 Bg5 Ka7 b6+ Ka6 Bd6 Rc7 b7 Ka7 Bf8 Re4+ Kf6 e5+ Bd6 Rf4+ Ke6 e4 Ke7 Rg4 Kf8 e3 Kg8 Rf4 Kh8 Qd5 Be5 Qd6 Bec3 Nd3 Bb4 Ndc1 Rdc8 Rg2 d8B Rh2 Bde7 Rg2 Rd8 Rh2 Bc2 Rg2 Rb1 a1Q Rb2 Qa5 Bb1 Na2 Rbc8 Qaa6 b8R Qac6 Rb5 Qa8 Rcb8 Nec3 Rd7 e2 Rbd8 e1N Ra5+ Qa6 Rd3 Ne2 Rb8 Rh2 Raa3 Rg2 Rac3 Qe6 Rc1 Qd6 Rb7+ Ka6 Bc2 Rf3 Nd1 Ng3 Bdc3 Rf4 Ra1 Rh2 Bb1 Rc2 Bd2 Ne2 Rb5 Ka7 Ndf2 Qf3 Rb6 Qa8 Rb7+
q4rqq/2NP1N2/1nnr4/Nn1b1R1B/R2R3B/BN3R2/1b3RpQ/2NK1k2 b - - 0 1 illegal: No possible last move, all moves rejected
N1N1n3/n2Q1bBR/k2q1N2/rr4B1/2R2PBb/1N5p/1N2K1BB/1nR2n1n b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 e5 d4 h5 b6 a5 d6 Kc6 d5+ Kb7 d7 c5 g6 h4 g7 c4 b5 e4 f6 c3 g5 e3 d6 a4 g6 e2 f7 c2 Nc3 a3 Nf3 a2 Na4 Qg5 d8R Nh6 g8N Nd7 g7 Nb8 d7 Na6 Ne7 Ra7 g8B Qc5 Nd2 Nb4 Nb3 Nf5 Bg2+ Nc6 Nb2 Rh5 Bg5 Nd6 Rc1 a1N f3 Bh6 f8B Ra5 Bg7 Na7 Be6 Ne8 Bg4 Qd6 Kf2 e1N Ke2 Nd3 Rh2 Kb8 b7 Nf2 Qd5 Kc7 b8N Kb6 Qe6 Kb7 b6 Nh1 Na6 Rb5 Nc7 h3 Na8 Ka6 b7 Ra5 b8B Bb7 Ng8 Bd5 Nf6 Rb5 Qe7 Bf7 Rc8 Ra5 d8N Rb5 Rc4 Ra5 Bd2 Rhb5 Qd7 Bg5 Nc6 Bh4 Ne7 Ra3 Nc8 Raa5 Nd4 Nb3 Bg5 Nd2 Nb3 Nb1 Bf1 Qc6 Rf2 Qb6 Bh2 Qb8 Re1 Qd6 Bg2 c1N+ Kf1 Ne2 Rec1 Nd4 f4 Nf3 Rfc2 Nfd2+ Ke2 Nf1 R2c3 Bd5 Re3 Bf7 Re7 Bg6 Bh8 Bh5 Rh7 Bf7 Bg7
1B1Kn2B/R1p3bb/2k2P1Q/2Bbq3/1NNRR1b1/2rN1nb1/N3BBN1/1r6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 e5 Ke4 b5 f4 h5 g4 b4 d4 h4 a4 h3 a6 b3 d6 b2 Kd5 e4 g6 e3 a5 e2 g5 e1B f6 h2 f7 Rh6 a7 Rh3 g7 Rh4 f5 Rf4 a6 Nh6 g8N Rf2 g6 Qg5 g7 Qe3 Be2 Be7 f8B Ba5 Qd2 Bd8 Nc3 b1B Ra4 Bb6 Na2 Qe8 Nf3 Nc6 Rd1 h1B Ne7 Rf1 g8N Bg2 Ng6 Rf2 Nh4 Bc2 Ne7 Bf1 Ne1 Nb8 Nd3 Bh3 Ng2 Ba5 Nc6 Qe3 Ncb4 Ke8 d7+ Kf7 Bc5 Bg5 d8B Ke8 Bf6 Kd7 Bh8 Nc6 f6 Rb8 a8N Bb1 a7 Bb7 Nb6+ Ke8 a8R Nf7 Nc4 Kd7 Ba7 Bg4 Kc5 Qe6 d5 Rf3 d6 Nce5 Qf4 Qf5 Be3 Bh6 Bf2 Bg7 Qh6 Bd5 Rd2 Rb6 Bb8 Rh3 Rd1 Nf3 Ra7 Qe5 Rd2 Rc6+ Kb5 Rh1 Rd1 Bb6 Ka6 Be3+ Kb7 Bf4 Rd2 Bg3 Rd1 Ke6 Kc8 Bc2 d7 Nd6+ Kd8 Ne8 Kc8 Re1 d8B Rc5 Rd2 Rb1 Be7 Rc6 Kd8 Rc5 Nde1 Bh7 Ned3 Rc6 Ncb2 Rc4 Bec5 Rc3 Nc4 Ba8 Nc2 Kd5 Rd1 Kc6 Ncb4+ Kb5 Ndb2 Bb7 Rd4 Bd5 N2d3 Ng1 Ra3 Rc2 Ndb2 Nf3 Re3 Rcc1 Ree4 Rc3 Nc2 Kc6 Nd3 Qf5 Be7 Qh5 Bc5 Qe5 Ncb4+
r2BN1nB/2Rb1r2/N3R1P1/K3Nk1n/b3p3/1BBr1N1Q/1BRbq3/3b3N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 e5 Kb4 d5 c4 h5 f4 d4 g4 e4 f6 Kg6 f5+ Kf7 b6 a6 g6+ Ke8 g7 Kf7 g5 h4 g6+ Ke8 f7+ Ke7 b7 Kf6 Qd3 h3 Nd2 h2 Qh3 d3 Ne2 Ne7 g8N+ Ke5 f6 Qd7 c6 Nd5+ Ka5 Bh6 f8B Ra7 b4 Rh7 b5 Bg7 f7 Qg4 b6 Rh5 c5 Nb4 c7 Rh4 c6 Rh8 Ne7 Bd7 c8N Qf5 c7 Ra8 Nd6 Qf3 c8R Nd5 Rc2 Rh7 Ng3 Nf4 Ne8 Nh5 Bb2+ Kf4 Rac1 Bh6 Bfg7 Qe2 Nf3 d2 f8B d1B Bgc3 Rf7 Bfg7 Bg5 Rg1 h1B Bh8 Bg2 Rh1 Ba4 Nc6 Nd7 b8N Ndf6 b7 Ng8 Nce5 Bh6 Rg1 Bg5 Nh1 Bh6 Kb6 a5 Na6 Rd8 b8B Rd3 Bc7 Bg5 Qc8 Bh3 Bd8 Bhd7 Bh3 Bh6 Be6 Bg5 Ba2 Kf5 Bb3 Bd2 Rg2 Bc6 Rg3 a4 Ka5 a3 Rg1 a2 Rf1 Ba4 Rf2 Kf4 Rf1 Bdb5 Qh3 a1R Rg1 Bc6 Rg5 Bd7 Rf5+ Ke3 Rf6 Ra3 Rc6 Kf4 Re6 Ra1 Qh2+ Kf5 Qh4 Ra3 Qh3+ Kf4 Nb8 Qe3 Bb4 Rh7 Rc4 Rf7 R1c2 Qe2 Rc7 Bac6+ Kb6 Ra8 B4c3 Bb5 Na6 Ba4 Qh4+ Kf5 Ka5 Nh6 Qh2 Ng8 Qh3+
5brB/P2Br1N1/rnr1QBB1/1R2pnKR/8/2NNR1RR/5k2/B2q1bb1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 h4 c5 a4 b5 d6 g6 d5 e6 h6 c4 h7 Kc5 d7 b4 d6 c3 h5 b3 h6 c2 f6 b2 a6 e5+ Kg5 Qa5 d8R Bf5 f4 Bd7 f7 Nc6 f5 Nce7 a7 Qe1 f6 Bh3 a5 Rc8 a8B Bd7 a6 Qc3 a7 Bh3 d7 Qb3 Qg4 Qc4 Bc6 Ra8 Ra3 Qc3 Qe6 Kd4 Bd3 Qa5 Rb8 Qc5 d8B Nc8 Rb5 Qd6 Bd7 Nge7 Nc3 b1R Bb2 Ke3 Ba1 c1R Nge2 Qd4 Nf4 Bf1 Rh5 Rg8 h8B Nb6 h7 Nf5 Bc2 Qd1 Nd3 Rb4 Be7 Ra4 Rab3 Bg7 f8R Ra6 f7 Re8 Bf6 Re7 Rc8 Bf8 Rc4 Kf3 Re4 Kg3 Re3+ Kg2 Bb1 Rc2 Nd5 Rc6 Nc3 Bg7 f8N Kg1 Qf7 Kg2 Ne6 Bf8 Ng7 Kg1 Nb2 Kf2 Qe6 Nd4 Kh6 g5 Bg6 g4 Kg5 g3 Ra3 g2 Nd3+ Kg1 Ra4 Nf5 Rg4 Ra4 Rgg3 Ra6 Rhh3 Nc8 Nh5 Ra3 Bhg7 Nb6 h8R Ra6 Rh6 Qb1 Bh8 Qd1 Nb4 Kf2 Ng7 g1B R6h4 Qa4 Rh5 Qd1 Nd3+
1Nr1nk1K/N1R2NR1/BB6/1b1NPn1Q/BR2q3/2b1Rp1N/2r5/q2R1qq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e6 c5 Kf2 f5 Kg3 g5 h4 a5 e4 c4 d4 c3 b4 g4 Kf4 c2 Ke5 a4 h6 f4 b6 g3 b5 g2 h5 a3 d6 a2 b7 Ra3 e7 Bd7 b6 Qc7 d5 Nf6 h7 Ra8 h6 Qc5 Nc3 Qa3 Be3 c1Q Nh3 g1Q Qh5+ Qg6 Rg1 Be6 d7+ Kf7 d8N+ Ke8 d6 f3 Nc6 Ng8 d7+ Kf7 d8R Bg4 Rd7 Qc2 Nd5 Qf2 Rd1 Na6 b8R Qb4 b7 Nc5 Rc7 Ra6 Na7 Rc6 Ba6 Nf6 Bd4 Rg8 h8R a1Q h7 Bd7 e8B+ Kg7 Rge1 Qgg1 Re3 Ne6 Kf5 Rc2 e5 Qff1 Bc5 Be7 Bd4 Bc8 Ba4 Bd7 Bc5 Rd8 Re8 Qbc4 h8N Rc8 Bd4 Bb4 Re7+ Kf8 Rh7 Qg8 Nf7 Ng7+ Kg6 Nfe8 Kh6 Bc3 Kg6 Ne6+ Kh6 Qgg2 Rg7 Qgg1 Kh7 Qcd3+ Kh8 Qe4 Rc4 Bc6 Rb4 Bb5 Bb6 Nd4 Ra8 Rc6 Rc8 Nf5 b8N Rc7 Rd8 Rc4 Rd7 Rc8 Rc7
bBr4N/2Qk2N1/4bR2/1pnr2nb/N2N1RBR/q1N1BP2/6q1/b1RKR3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 a4 h5 c4 e5 g4 b5 f3 d5 c6 h4 g6 d4 c5 d3 g5 e4 a6 h3 c7 h2 a5 e3 g7 e2 c6 Rh6 g6 Bc5 f6 Bh3 c8R Bd7 c7 Bf5 a7 Rh8 f7+ Kd7 f8B Rh4 a6 Be4 Be3 Be7 Qc1 Bf6 Nc3 Nc6 Bh3+ Rg4 Bd6 Rb8 a8N Nce7 a7 Nh6 g8N Qf8 g7 Ng6 Ne7 Nf4 g8N Nf7 Nh6 Ne6 Nhf5 Nc5 Ng7 Ng5 Ng6 Bc6 Re8 Rc8 Re6 Rd4 Bg4 Rd5 Nh8 Be5 Ra4 Bf6 Rf4 d2+ Kf2 d1B Ke1 Bc2 Be5 Re8 c8R Bg6 Bb8 Bh5 Qc2 Bb7 Rcc6 Rc8 Nb6+ Kd8 Re7 Ba8 Nba4 Bd4 Ree6 Kd7 Qh7 Qe7 Kd2 e1Q+ Kc2 Qd8 Nge2 Qf2 Rc1 h1B Kd1 Qe7 Qc2 Bf6+ Nd4 Bg2 Qh7 Bh3 Rb6 Bc6 a8R Qg2 Raa6 Ba8 Ree4+ Kd8 Rbe6 Be5 Ref6 Qa7 Rae6 Kd7 Bg1 Qa5 Re1 Qb4 Be3 Qa3 Rh6 Bf7 Ref6+ Be6 Bf5 Bg4 Rh4 Bh5 Bh3 Bc7 Bg4 Ba5 Nb1 Bc3 Qc2 Ba1 Qc3 Bf7 Qa5 Be8 Nbc3 Bh5 Qc7+
n1B5/3NqR2/2p2BP1/Nr2bK1n/1BNN1n1r/2RQR3/B4Bk1/4Nnqb b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 a5 g4 h5 f4 h4 b4 a4 d4 a3 g6+ Kf6 b6 h3 b5 h2 g7 a2 d6 Rh3 b7 Rf3 d7 Rh3 g5+ Kf7 d5 Rh8 b6 Ke7 d6+ Kf7 g6+ Kf6 Qd3 Nh6 g8B Ng4 Be3 Nh6 Na3 Ng4 Rc1 a1N Bf2 Rh5 Ba2 Ra5 Rc3 Nc2 Nc4 Rd5 Bh3 Rh4 Nf3 Rb5 Ne1 Qe7 d8N Bg7 d7 Na6 b8N Bb7+ Ndc6 Nce3 d8B Nf1 Rg1 h1N Rg3 Nge3 Bg4 Ng2 Re3 Ba8 b7 Bh8 Nd4 Nhg3+ Kf3 Bg7 Nbc6 Nh5 b8R Bh8 Rb7 Bg7 N6a5 e4+ Ke2 Bh8 Ra7 Bd5 Bh3 c6 Rc7 Kg7 f6+ Kh6 f5 Kg5 f7 Kf4 f8B Be5 Ra7 Nc7 f6 Na8 f7 Bf6 Bc8 Be5 Rg3 e3 Rb7 Qe8 Bb4 Qe7 f8N Be4 Nd7 Bd5 Kd1 e2+ Kc2 Be4 Re3 Kg4 Bc5 Ngf4 Bb4 Bh1 Rc7 Qe6 Bf6 Qe7 Ng2 e1Q Rb7 Nfg3 Ra7 Qg1 Ne1 Kh3 Rc7 Ng2 Kd2 Kh2 Ra7 Nf1+ Ke2 Nhf4+ Kf3 Kh3 Ke4+ Kh2 Rc7 Nh5+ Kf5 Ngf4 Ndb6 Qd6 Rf7 Qe7 Nef3+ Kh3 Nd7 Kg2 Ne1+
b2B2r1/1NqB3b/4RR2/2QNr1R1/1PBK2p1/N2nNR2/p3Rnrk/4bN2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 h4 f5 d4 a5 b4 g5 e6 Kf6 e7 a4 e8B c4 b6 c3 d6 c2 d7 g4 d5 Ke5 h6 a3 h7 a2 d6 Ra7 h5 Ra5 h6 Nc6 b7 Rd5 b8R Qf6 d8R Rc5 d7 Bg7 Nf3+ Ke6 Nh2 Ke5 Rb6 Rc4 Qd4+ Ke6 Qc5 Ne7 Na3 Rf8 h8N Ba6 h7 Rg8 Ng6 Qh4 h8R Nc8 Rh6 Nd6 Ne7+ Qf6 Rdb8 Ne4 Nd5 Ke5 d8N Bb7 Bd7 Ba8 Nb7 Qe7 Re8 Nf2 Rf6 Bh8 Bd2 c1R Rb5 R1c2 Re1 Rf4 Rg1 Bg7 Rg3 Bh6 Rf3 Bg5 Ref8 Bh4 Rh6 Qd8 Rff6 Qc7 Rhg6 Rfc4 Rb6 Rd4 Rg5 Bg3 Nc3+ Rd5 Nd1 Rb2 Rf4 Nh3 Bc3+ Nd4 Rfd6 Bh4 Kd3 Rc2 e4 Rg2 Ne3 Bf2 Bb2 Bg3 Kc3 Nb3 Bc4 Nc1 Re2 Nd3 Rf1 Bf2 Rdg6 Kf4 e5 Kg3 e6 f4 e7 f3 e8N Rf5 Nf6 Rd5 Re6 Be1+ Kb3 Rf5 Nfd5 f2 Bf6 Re5 Bd8 Nhf4 Nf3 Nh3 Nd2 Kh2 Kc3 Qb8 Kd4 Qc7 Rg1 f1B Rgf6 Ndf4 Rf2 Bd3 Rgf1 Bh7 Re2 Nd3 R1f3 Nhf2 Ndf1+
Rqn1B3/Rr1P4/1BR1B3/K1NnQNk1/3n4/3N4/bprp3b/1BRBrR2 b - - 0 1 illegal: No proof kernel
n3B3/R5B1/r1Npr1p1/1R1N1bR1/4bR1P/2N1b1K1/qq1BkB2/n2R2BQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 c4 Ke6 h4 Kf5 e4+ Ke6 b4 f5 c6 a5 c5 a4 h6 f4 c7 f3 b6 a3 c6 a2 h7 g6 b5 d6 b7 Bg7 b6 Qg5 Bb5 Bf8 Nc3 Bg7 Nge2 Qh5 Kg3 f2 Nd4+ Ke7 e6 Kf6 e5+ Ke7 Bd2 Nd7 b8B f1B b7 Ra4 Ba7 Qh6 b8B Ba6 c8R Bh3 c7 Bf5 Rf8 Nc5 c8R Nf6 Be8 Nb3 Rc5 Nd5 Rb5 Nb6 Qf1 Rg8 h8B Bb7 Rg1 Bg2 Rd1 a1Q Qe1 Bf6 Bg7 Qb2 Bc7 Na8 Bcb6 Bge4 Rg2 Na5 Qh1 Nb3 Bc5 Bg5 Rf7+ Kd8 e7+ Kc7 e6 Na1 Nc6 Ra6 Bg1 Be3 Rf2 Qh8 Rf4 Qa2 Bc5 Rf8 Bcd4 Bh3 R7f5 Rf6 Rg5 Bhf5 Bf7 Qh6 e8R Qh8 e7 Re6 Reb8 Kd7 Ra5 Kc7 Rbb5 Qb8 e8N+ Kd7 Rbb1 Qbb2 Nf6+ Kc7 Be8 Kb7 Be5 Kb6 Ra4 Kc5 Nfd5 Qc1 Ra3 Kc4 Rb5 Kd3 Bef6 Qcb2 Ra4 Bb6 Bfd4 Bc5 Bdf2 Be3 Nb1 Ke2 Raa5 Rb6 Ra7 Ra6 Nbc3+
B5K1/BR3R1p/PNR1rq2/1pb4B/1Nr3n1/k1qRQnN1/R3bB1b/1B6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 b5 g4 c5 d4 c4 a4 c3 g6 c2 g5 e6 a6 Bd7 a5 Bg7+ f6 Bc8 a7 Bd7 a6 Qc7+ d6 Nh6 d5 Bf8 f5 Qc4 g7 Bc8 g8R Qe2+ Be3 c1B f7 Qh5 Kf6 e5 d7 e4 d8R Bb2+ Qd4+ Kb3 d6 Qf3 d7 Qf4 g6 Bb7 g7 Bba3 Ne2 Bac5 Ra2 Bd5 Bf2 e3 Na3 Bf3 Ng3 e2 Qe3+ Ka4 Nc2+ Ba3 Nb4 e1Q Be2 Bb7 Bh5 Bd6 f8R Bc7 Rf7 Qe2 Rc1 Qd2 Rc6 Qe4 Rgf8 Qg2 g8B Qf1 Kg7 Ng4 f6 Qc3 Re7 Bd6 Be6 Qfa1 Rff7 Re8 Bf5 Kb3 Bb1 Bf4 Re5 Re6 Kg8 Bc8 Rec5 Bb7 Rc7 Bf3 Rb7 Nc6 Rc4 Rc8 a8B Nce5 Rc6 Qd3 Rdf8 Qac3 d8B Qd6 Bb6 Be2 Rd8 Nf3 Ba7 Rc7 Rdd7 Qe5 Rd3 Qd6 Nf5 Bh2 Ng3 Qe5 Rfd7 Ka4 f7 Qf6 f8N Rc8 Rf7 Rc7 Rcd6 Rc4 Rc6 Kb3 Nd7 Ka4 Nb6+ Kb3 N4d5 Bc5 Rad2 Ka3 Nb4 Ng5 Rc2 Nf3 Ra2+
QR2nN1R/1bp1BNrn/3nNqBp/2K5/2B2N2/2BrN2P/1kBq2b1/7R b - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 cxd5 Be7 g3 Bg5 fxe5 f4 Qb3 f3 Qd1 Bf4 gxf4 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Kf7 Ke3 g5 Kd4 a5 e4 h6 b4 f2 b6 g4 e6+ Kf6 b5 g3 h3 g2 e5+ Kf5 b7 a4 d6 a3 d7 a2 b6 Ra7 e7 Nc6+ Kc5 Ke4 b8R Ra4 e8B Rh7 d4 Qg5 d8N Qg3 b7 Ra3 e6 Ra4 e7 Qb3 f5 Be6 f6 Bf5 d5 Na7 f7 Bc8 f8B Bg4 d6 Ra3 d7 Qe6 Nc3+ Ke5 Bg6 Nc8 e8B Rg7 Bc4 f1B Bc2 Qf6 Nd5 Rd3 Bg6 Bf3 Ne2 g1N Nef4 Nd6 Bd2 B1g2 Ne3 Bc6 Bb4 Nf3 Be7 Ng5 Qf3 Nh7 Nde6 Qg5 d8N Ngf6 Rad1 a1Q Be1 Nfe8 Bc3+ Rd4 Rdf1 Qd1 Rfg1 Qd2 Rb1 Qh4 Rc8 Qf6 b8N Bb7 Rb3 Ba6 Qa8 Bab7 Bf7 Qd3 Nd7+ Ke4 Ndf8 Ke5 Be1 Qd2 Bfg6 Rd3 Rb2 Qc1 Bb4 Qd2 Bc3+ Rd4 Rh2 Ba6 Ba5 Rd3 Rbb8 Bab7 Rh1 Qg5 Nf5 Nef6 Nf7+ Ke4 Nd7 Qh4 Rh8 Nfe8 Ndf8 Qg5 Nh5 Qf6 Nfg3+ Ke3 Nf1+ Ke2 Bc3 Ke1 Bb1 Kd1 Bc2+ Kc1 Ne3+ Qe1 Bd2+ Kb2 Nhf4 Qe2 Ba5 Qd2 Bc3+
1kq1b1nN/bN1Np3/1B3QbB/2n1b3/4P3/2Br1RNN/Bpn1R1K1/B5R1 b - - 0 1 legal: proof: g4 d5 h4 g5 b4 b5 c4 a5 bxa5 f5 gxf5 g4 cxd5 Ra6 Nh3 Rg6 Ng1 Rg5 hxg5 Ba6 Qc2 Bb7 Qd1 Bc8 a4 Kd7 e4 h5 d4 c5 f4 Kc7 Kf2 b4 f6 h4 a6 g3+ Kg2 b3 f5 c4 f7 c3 a7 c2 a8N+ Kb7 d6 Qd7 d5 Nc6 a5 Qc7 a6+ Kb8 f6 Qb7 g6 Nd8 g7 Qa7 d7 Nb7 d8N Rh7 d6 Qc5 d7 Qd6 Ra3 Qe5 Bc4 Ka7 Qf3 Qd4 Bb2 c1N Nb6 Nd3 Ba1 Qe5 Nc3 Rh5 Nce2 Nf2 Nh3 Nh6 g8N Qc3 Rg1 Nc5 Nb7 Kb8 d8B Bg7 f8B Bd7 f7 Be5 Qf6 Be8 Bg7 Nfd3 f8B Nb4 Bh8 Nc2 Nd7+ Kc8 a7 b2 Bb6 Rf5 Bd5 Rf3 Ba2 Rd3 Bfg7 Qc4 Nf8 Qe6 Rc3 Qd7 Re1 Qc7 a8R+ Qb8 Kg1 g2 Ng3 Bg6 Kf2 g1B+ Kg2 Bgd4 Raa3 Qc7 Rf1 Kb8 Rg1 Qc8 Rcb3 Rd1 Re3 Rd3 Re2 Bf2 Nf4 h3+ Kf1 h2 Kg2 Rd1 Rf3 Rd3 Nh3 h1B+ Kf1 Nf5 Nh6 Bfd4 Nf7 Nh6 Qe6 Be3 Qf6 Ng8 Bh6 B3d4 B8g7 Be3 Nh8 Bf2 Rf5 Bf3 Rf4 Bg4 Rf3 Bd7 Kg2 Bde8 Qc6 Bf4 Bc3 Be5 Qf6 Na6 Bba5 Ba7 Bb6 Nc5 Nd7+
kBqQNNq1/4nN2/2Rp1Br1/bb1N3B/2pN4/K1PrB1q1/3B4/1q1R1R2 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 gxf5 e5 axb5 Nc6 dxe5 g4 h4 Nd4 Bg2 Ne6 Bf1 Ng5 hxg5 Be7 Ra2 Bc5 Ra1 Bf8 Kd2 a5 Kc3 h5 Kb3 c5 e4 a4+ Ka3 g3 b4 h4 f4 g2 g6 c4 g7 h3 f6 h2 e6 Qe7 f5 Kd8 e5 Kc7 f7 Kb8 b6 Rh5 b7 Ra7 f6 Rg5 Ne2 g1Q Be3 Qd8 e7 Qb6 e8N Rh5 e6 Qd4 e7 Qg2 b5 Rd5 Nbc3 Qh4 Nd4 Qhf2 Be2 Qh3 Nd6 Re5 e8N Rd5 Bh5 Qfg2 Rf1 Ne7 g8R h1Q Rg6 Qhg3 Rb1 Bg7 f8N Ra6 f7 Qhh3 Rh6 Ka7 b8B+ Ka8 b6 Bb7 Ba7 Bc6 Bd2 Bb5 Rc1 Rf5 Rf6 Rf3 Rb1 Bh6 Rc1 Be3 Nd5 Bg5+ c3 Rd3 Nb7 Bf4 Rc6 Bc7 Nd8 Qe6 Nh7 Q2h3 f8B Qeg8 Bg7 Qhg4 Nf7 Qf5 Kb4 a3 Nf8 a2 Bf6 a1Q Rb1 Ba4 Rc1 Qb1+ Ka3 Bd8 Qb3 Qfg4 Rcd1 Bb5+ Qa4 Qb8 Qa5 Qc8 Bb8 Qg3 Bbf4 Bc7 b7+ Ka7 b8B+ Ka8 Qa4 Ba5 Bfe3 Rb6 Rc7 Re6 Rc6 d6 Qb4 Ba4 Qb6 Bb5 Bfg5 Rh6 Qd8 Rg6 Bf6
1Kbqn1r1/1Np2pbr/1BRn2NN/1PN4B/1BQ3r1/1R6/Rp1B2Nk/1B6 b - - 0 1 illegal: No proof kernel
K1R2R2/3NRBk1/1Npb1n2/RqQ2Pp1/5n1N/1B1p4/2rBRN1r/1bN4q b - - 0 1 illegal: No proof kernel
2NB2QK/3pN3/2NrrR1B/3N1RB1/br1B1b2/Rkb3Np/3pB2P/2q1n3 b - - 0 1 illegal: Other
1rR2q2/n1rN3N/1Bq1p3/3rpk1b/BN1R1R2/3R2Bn/1p1QPB1B/3K3R b - - 0 1 illegal: Other
2BrB3/p6R/1Rpb1NB1/n1Q1kB2/6r1/3RnR1b/K1P1NnpN/R1B4r b - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 e5 gxf5 g4 d4 Bg7 dxe5 Qg5 hxg5 Bf8 Kd2 Kf7 Kc3 d5 Kb3 h5 f4 c6 e4 h4 g6+ Ke7 e6 Kf6 b6 h3 e7 h2 e8B g3 g7 d4 e5+ Ke7 f6+ Ke6 f5+ Kd5 e6 d3 f7 d2 b7 g2 f6 Bd7 e7 Ke4 Ba6 Kd4 Qh5 d1R Qc5+ Ke4 Nf3 Rd3+ Ka2 Bg4 b4 Bd7 b5 Nh6 g8B Bg7 f8R Rd2 b6 Rd6 f7 Bf5 Bh7 Rd2 Nc3+ Kf4 Ne2+ Ke4 Bd7 Ng4 e8B Be5 Bg6 Ne3 Rd1 h1N Nh2 Rd4 Rd3 Rh6 Rh8 Bd6 f8R Nf2 Rh7 Rb4 Be6 Nd7 b8N Ne5 b7 N5c4 Nd7 Rd8 b8R Na5 Bc8 Rh4 Rff7 Rg4 Rb6 Rb1 Ba3 Rh1 Bc1 Nd5 Nf6+ Ke5 Qb4 Ne3 B6d7 Rg5 Qc4 Bh3 Bdf5 Rg4 Qc5+ Nd5 Rf3 Rd4 Rd7 Rg4 Qc4 Ne3 Qb4 Bb8 Rd3 Bd6 Qc5+
2q3N1/1RRNBnB1/3b1pR1/k6R/BRKp1p1Q/1Bn2nB1/n1NP2b1/5r2 b - - 0 1 illegal: Other
8/1q1p2Bn/r2b1pRR/2pRNq2/kQ2pNB1/2B1R1nr/BK2P1R1/B3N3 b - - 0 1 illegal: No proof kernel
1b2RN2/1B2rNnn/3QqQ2/1R1N1Nn1/5kNP/B1Q5/6Kn/NR2q2r b - - 0 1 illegal: No possible last move
3BQ3/1B1NQbR1/BK1BB3/r4n2/1p3q2/2NR4/qnB1kNQP/3b2r1 b - - 0 1 legal: proof: f4 h5 a4 d5 g4 a5 gxh5 b5 c4 e5 cxd5 c5 fxe5 c4 d4 c3 b4 c2 bxa5 Be7 a6 Bc5 a5 Bb6 axb6 Kf8 Bg5 c1R Bd2 Rc3 Bc1 Rc5 dxc5 Ke8 Kd2 Kd7 Ke3 g5 Kd4 f5 e4 f4 c6+ Ke7 Kc5 f3 d6+ Ke6 d7 g4 h6 f2 c7 b4 a7 g3 h7 g2 b7 Na6+ Kb6 Nc5 b8N Qe8 d8B Qa4 Qg4+ Kf7 e6+ Ke8 e7 Kf7 e8B+ Kf8 e5 Qb3 e6 Qa4 Ra3 Nd3 Nc3 Nh6 Bg6 Kg7 e7 Kf6 Bf4 Nb2 Nh3 g1Q Qg2 Be6 c8B Rg8 Bc2 Bf7 Bd6 Nf5 Bfa6 f1B+ Nf2 Be2 Be6 Qf1 Rg1 Bd1 h8Q+ Rg7 Rb3 Qa2 Qf8 Qc4 Ra3 Qf4 Rb3 Rg4 Nd7+ Kg5 e8Q+ Kh5 Qfe7 Rg3 Nd3 Kg4 Ra3 Rc8 a8B Rc5 B8b7 Rd5 Qd2 Kf3 Qg2+ Ke3 Nf2 Ra5 Qc6 Rg8 Rg7 Kd2 Qg2 Ke1 Nb5 Kd2 Rd3+ Ke2 Rh7 Rg4 Rg7 Rg3 Qh1 Rg1 Nc3+ Kf1 Qg2+ Ke1 Nb1 Ke2 Nc3+
r2kq1Q1/RR1Np2R/B7/4b1PR/1Kb2q2/1bR3QN/7N/1r1rB1RQ b - - 0 1 legal: proof: h4 f5 a4 g5 hxg5 d5 b4 b5 axb5 f4 e4 f3 c4 d4 b6 d3 b5 Nh6 b7 Nf5 exf5 Na6 Qxf3 Bg7 b6 Nb4 Qg4 Nd5 cxd5 Bh6 Qd1 Bg7 Bxd3 Bh6 Bf1 Bf8 b8R a5 g4 c5 d4 h5 Kd2 a4 Kc3 c4 f4 a3 b7 a2 g6 h4 g5 h3 g7 h2 g8Q Qb6 d6 Ra5 d5 Qf2 d7+ Kd8 f6 Kc7 d8R Ra4 d6+ Kc6 f5 Ra5 f7 Qc5 d7 Kc7 f6 Qb5 Nd2 Rh6 Nh3 Qa4 Nf3 Qc2+ Kb4 c3 Rg1 h1B Ba6 Rh8 Nh2 Ra3 Bd2 Bd5 Be1 Bg7 f8R Bc4 f7 Be5 Rfe8 Qd2 f8N Qf4 Qdd5 c2 Qh1 Rf3 Rc1 a1R Ra8 Rf2 b8R Rd2 Rb7+ Kd6 Raa7 Rd1 Qg2 Qf7 Qg3 Bb3 Qh7 Rb1 Qe4 Rg8 Qh1 Qg6 Ne6 Rh8 Nc5 Rg8 Rf8 Qe8 Rf7 Rh8 Rh7 Rg8 Rb8 Bb7 Rh5 B7d5 Rbb7 Bdc4 Rc8 Rb2 Ra1 c1Q Ra2 Rb1 d8Q+ Qd7 Qf8 Qe8 Nd7 Qf4 Qg7 Qg6 Rc5 Ra8 Qg8 Qe8 Rc2 Rbc1 Rc3 Rb1 Rc8 Qef7 Rf8 Qg6 Nf3 Qe8 Rf7 Kc6 Rfh7 Kd6 Rb5 Kc6 Nh2+ Kd6 Bb7 Kc7 Ba6+ Kd8 Rbb7
1K5B/2BRB1RN/B1p1p3/1Q3nr1/b7/3Q3N/P3pBR1/knr1QBr1 b - - 0 1 illegal: Other
3BQ2R/2BB1b1K/1q1p2PN/2R1N1NQ/r5p1/3p3Q/B2B1bp1/1n1k2B1 b - - 0 1 illegal: Other
3K1QnN/8/N1BB2b1/3q1b1k/R2n2PB/1QbR2Q1/bBbr3B/1B2N2n b - - 0 1 illegal: No possible last move, all moves rejected
1R2B3/Qr3N2/4r1q1/1N1q2nr/B1NrR1RB/4bPnN/1N1Qk1q1/2K2N2 b - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 exf5 b5 cxd5 b4 h4 b3 hxg5 Na6 f3 Be6 axb3 Nb8 b4 Bf7 b5 Bg6 fxg6 Bg7 Rh5 Bh6 Rh1 Bf8 b4 Kd7 d4 Kd6 Kd2 c5 g7 a5 g6 h5 g5 e5 b6 a4 b5 a3 b7 a2 b6 e4 Na3 h4 Rb1 a1Q Nb5+ Ke7 d6+ Ke6 d5+ Ke5 d7 Kf4 d6 c4 Nh3+ Kg3 Rb3 Nf6 g8R Qa4 g7 Qe8 d8N Nfd7 g6 Ra6 Nf7 Qd8 Ne5 Rh7 Nd3 Qa2+ Nb2 Nc6 b8Q Nd4 b7 Nc5 d7+ Rd6 Qa7 Nce6 b8N Ng5 Nc6 Nf5+ Kc2 c3 Qd2 e3 Ne5 e2 Nc4 Qf6 d8N e1R Nf7 Ree6 Rb4 Be7 Rb8 Rh5 g8N Rd4 g7 Bc5 Ngh6 Qg6 g8B Qa5 Be2 Qd8 Re1 Qd5 Ng4 Bb6 Nf4 h3 Nge3 Kf2 Nf1 h2 Ra4 h1Q Bd1+ Re2 Kb1 Qg2 Bc2 Ng3 Rb4 Re4 Ba4 Be3 Kc2 Re7+ Kd1 Rb7 Bh7 Qg8 Bf5 Qg7 Bd7 Qg6 Be8 Qb1 Qdd4 Qg6 Bd2 c2+ Kc1 Qe5 Qd7 Qd5 Qd6 Bd4 Qd7 Re6 Re4 Be3 Nh3+ Ke2 Rg4 Bf2 Be1 Bb6 Nce3 Bc5 Rbe4 Bb6 Nbd1 Bd4 Nc4+ Be3+ Kb2 c1R Bf2 Nh1 Bh4 Ng3 Qd8 Rc2+ Kb1 Rd2 Ndb2 Rd3 Qda5 Rd2 Kc1 Rd4+ Qd2+
2BRq3/1Kn2N2/1QP1Q3/2b1q3/B1bn4/r1N3B1/qqRQ1Bk1/2BR1nB1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 h4 f4 hxg5 f3 e4 Kf7 g6+ Ke8 g5 Ra6 g7 Rh6 g6 Rh5 Qd2 Rg5 Qd1 Rg3 fxg3 Nc6 g4 Nb8 g5 f2+ Kd2 Nh6 Bc4 f1N+ Ke1 Ne3 Bf1 Nef5 exf5 Ng8 Ke2 d5 Kd3 Kd7 Kd4 h5 c4 h4 b4 e6 f6 h3 f7 a4 c6+ Kd6 c7 a3 c5+ Kd7 b6 Kc6 b7 a2 b5+ Kd7 c6+ Kd6 b6 h2 Nh3 Nh6 g8Q Na6 b8B Qe8 g7 Rh7 Rg1 h1Q g6 Qg2 b7 Qb2+ Nc3 Be7 Rb1 a1Q f8B Qaa2 Qd2 Bd7 c8B+ Nc7 Bb5 e5+ Ke3 e4 Kd4 e3 Rg2 e2 Ng5 e1Q Nf7+ Ke6 Ba7 Kf5 b8B Be6 Ba4 Bd6 Rh2 Kg4 Ra1 Ba3 Bfc5 Kg3 Qf8 Bb4 g8Q Kf3 Re2 Nf5+ Ke5 d4 g7 d3 Bg1 Rh1 Baf2 Nd4 Qc5 Bc4+ Kd6 Rh3 Rb1 Qe5+ Kd7 Ba3 Qb6 Bc5 Qe8 Rg3 g8R Kg2 Rf8 Rf3 Qe6 Re3 Rd8 Rg3 Qf4 d2 Qe3 d1N Rc2 Rf3 Qd2 Ne3 Ra1 Nf1 Rb1 Nd5 Bd6 Nc7 Ra1 Qh5 Bdg3 Qe3 Bb7 Qh8 Kc8 Qe8 Kb8 Qg5 Bc8 Qe5 Kb7 Rd3 Ne2 Ra3 Nc3 Qbb3 Bb2 Qb5 Rd1 Qb4 Bc1 Qbb3 Kb8 Qbb2 Kb7
r1k2B1b/3N2n1/B1R4b/5n1r/2BQrR1r/1B3PB1/2r1RQ2/NbN2KB1 b - - 0 1 illegal: No possible last move
RN2K3/bNP1b2Q/5b2/1Q3N1n/5B1N/NQ4R1/nkN1Rnb1/1B1r2br b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 Kf6 Kd4 d5 h4 a5 c4 g5 f4 g4 b4 e6 b6 g3 b7 a4 b5 a3 c6 g2 c5 a2 c7 Ra5 h6 Nd7 b8N Bd6 c6 Nb6 h5 Ra6 h7 Qe7 h6 Na4 b6 Ba3 b7 Qg7 Nf3 Qg3 Nh4 Qe1 Qd3 Ra5 Rh3 Nb6 Rg3 Be7 Na3 Bd7 c8N Nc4 c7 Bc6 Nd6 g1B+ Be3 Qe2 Re1 Qc2 Re2 Nb6 Na6 Qb1 b8N Qb3 Nb7 Na4 Nb4 Nc3 Nbc2 a1B Bg2 Ra8 Be4 Ra6 Nc5 Ba8 Nb7 Rd6 Kc5 e5 Qb5 Rd7+ Kc6 d4 Bd3 e4 Bc1 Kf7 f6 Ke6 f7 e3 f8Q Nf6 Qd8 Na2 Nf5 Nh5 Be4 d3 Bd2 Rf8 h8R Baf6 h7 Rf7 Bc1 d2 Re8 d1N h8Q Nf2 Qh7 Rd1 Qdd3 Rf8 Bd2 Rh8 Rd8 Be5 Bc1 Kf6 Kd7 Bd4 Rdg8 Ba7 Ke8 Ke6 Rd2 e2 Rf8 e1B Re2 Bc3 Qd8 Bd6 Nfe3 Rd4 Na5 Bb6 Nb4 Bh2 Qg7 Ng4 N8a6 Ba7 Bb1 Bf3 Nb7 Bac5 Nbc2 Rh6 Qh7 Bg1 f5+ Ke5 f6 Nf4 f7 Nf2 Kd7 Rh1 Nf5+ Kd5 Bd2 Nh5 Bf4 Bg2 Rh8 Bb2 f8N Rd1 Ng6 Bf6 Ngh4 Bf8 Qe8 Bd6 Qe3 Bde7 Rhg8 Re1 Ra8 Rd1 Qb4 Bb6 Nb8 Ba7 Ke8 Bd6 Qbb6 Bde7 Nb5 Kc4 Qf3 Qe3 Nba3+ Kc3 Qa6 Kb2 Qb5+ Qb3 Qfd5 Be5 Qdd3 B5f6 Qdxb3#
2QBBQ2/n3b1Q1/1R5q/3KN1p1/n4QQ1/4NR1b/RN1n1Pq1/Qrr4k b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 d4+ Kh4 f6 e5 h6 c5 b6 c4 d6 c3 a6 g6 h7 c2 a7 Qc7 b7 Nh6 f7 Be6 d5 Qc6 d7 Ng8 d8R Qc5 d6 Bc8 d7 Qb6 Na3 Qe6 Bb5 Na6 b8Q Qd6 Ra2 Qf6 Kd5 e4 Nc4 e3 Nb2 e2 Nf3+ Kh3 Bg5 Kg2 h4 c1N h5 e1Q h6 Qf4 Rh3 Qf6 Ne5 Qc3 Rf3 Be7 f8Q Nc5 Re8 Qc2 d8Q Bh3 Qdc8 Na4 Nec4 Qa6 Qbf4 Rb8 a8Q Nb3 Qa1 Qb1 Qcg4+ Kh1 Ne3 Nd2 Qa7 Rb6 Rb8 Qf1 Be8 Rb4 Bf6 g5 Rb6 Rc4 Qb7 Rc1 Qbc8 Qg2 Qg7 Bd6 Bd8 Ne7+ Ke6 Nc6 Kd5 Rf8 h8Q Be7 h7 Na7 Qhg8 Rf6 h8N Rc6 Q7f8 Rb1 Ng6 Rc7 Ne5 Rcc1 Rb7 Qb6 Qgg7 Qh6 Rb6
R1NQ2Nr/N7/r4b1q/n1r2BRB/1k1BP1B1/Q1pB1R1b/1nK5/3B1r2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 d4 Kd7 Kd2 f5 g4 h5 a6 c5 d6 f4 b6 Kc6 b7 Kb5 d5 h4 g6 f3 a7 h3 g5 h2 e6 f2 e7 c4 e8B+ Nd7 b8N c3+ Kc2 Qf6 g7 Qe6 g6 Ne7 g8B Rh4 g7 Ba6 Bh5 Kb4 Nd2 Nf6 d7 Bb5 d8R Rf4 d6 Kc5 d7 Rh4 Nh3 Rg4 Ra5 Re4 Bh7 Ne8 g8B Qa6 Ng5 Nf6 Nc4 Nf5 Nd6 Rf4 Be6 Bg7 Be3+ Kb4 Qa1 Nh6 Bd4 Ne8 Bhf5 Re4 Nc8 Nf7 Nh7 Re5 Nf6 Rc5 Ng8 Ne5 e4 Nc6 Bd3 Qb6 Rf1 h1R Bfg4 Bc4 Bef5 Nd6 Re8 Rh4 d8Q Bf6 Re5 Be6 Ra6 Nc4 Qa3+ Kb5 Bd1 Na5 Nc6 Rh3 Bhg4 Rh6 Bh5 Rb8 a8B Rh8 Bb7 Ra8 Bfg4 Bd7 Rf5 Be6 Rg1 f1R Rf3 Ra7 Bf5 Bd7 Rg5 Be6 Bfg6 Bh3 Bf5 Ra8 Qb2+ Ka4 N6a7 Qd6 Qa2+ Kb4 Bc6 Nb2 Bcd7 Qf8 Bfg4 Qh6 Bdf5 Rb8 Nb5 Rb7 Ra8 Rb6 Nba7 Ra6 Qa3+
1Nqk1r1Q/n1R1BnB1/1b4K1/1rQ1Rn2/Qp4N1/R1bQ1n2/1Q1P2B1/2Q5 b - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 a4 cxd5 a3 bxa3 Ra5 a4 Ra6 a5 Ra8 g4 g5 fxg5 Bg7 h4 Bf8 h5 Be6 Ba6 Bf7 Bf1 Bg6 hxg6 Ra7 Na3 Ra6 Nb1 Ra8 Ke2 b5 Kf3 e5 Ke4 c5 a4 h5 g7 c4 a6 c3 d6 h4 d7+ Ke7 a5 c2 a7 h3 g6 b4 f6+ Kd6 Kf5 Kc7 f7 e4 g5 e3 a6 e2 Bg2 e1B Na3 h2 Nc4 Qc8 Nh3 Qe8 Bb2 c1N Ra3 Na2 Na5 Nc1 Nc6 Rh6 Nf2 Nb3 Ng4 Bd6 f8B Rh5 Qc1 Bf2 Re1 h1N Re5 Bdc5 Bd6+ Kb6 d8Q+ Kb5 Qd7 Nf6 g8Q Kb6 g7 Na5 Qd5 Bg3 g8R Qc8 Rg7 Nh7 Kg6 Nb7 Qd3 Be3 Q7f5 Nd8 Rc7 Nf7 Qf6 Bh2 Qf2 Ng3 Qfg1 Nd7 Nb8 Nf5 Ba1 Bd4 Qb2 Be3 Qgc1 Bf2 Nc6 Rb8 a8Q Bhg1 a7 Bd4 Ra2 Bc3 Ra3 Rb7 Nb8 Bc5 Na6 Rb8 Qad5 Ra8 Q5d4 Nb8 Q4c4 Nc6 Qcd5 Rb8 a8Q Na7 Q5d4 Rb7 Nb8 Rh1 Qd5 Rf1 Q5d4 Nb5 Qa4 Na7 Kh5 Rf2 g6 Nhg5 g7 Nf3 g8Q N5h6 Qge8 Nd8 Qg8 Ne1 Rg7 Rf8 Rd5 Nf3 Qa2 Nf5 Qh8 Bb2 Q4c4 Be5 Kg6 Bf2 Rd7 Nf7 Bc3 Be3 Qab2 Bf6 Bce5 Bd4 Rc5 Bc3 Qcd5 Bd8 Bg7 Bc7 Re7 Bd8 Rc4 Bc7 Re5 Bd8 Bc5+ Kc7 Q5d4 Rb5 Bd6+ Kb7 Rc6 Bb6 Qc5 Qd8 Bc7 Kc8 Bd6+ Qc7 Qcb1 Kd8 Q1c1 Qb7 Rc7 Qc8 Be7+
8/1n2b3/1rQPp1bq/BB1r1q2/R1B1QN1Q/2NBNBR1/2b5/K1B1k1q1 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 b4 Kd7 d4 Kd6 Kd2 h5 Kc3 a5 Kb2 c5 f6 a4 f7 h4 b6 c4 b7 h3 b8B+ Qc7 b5 h2 b6 Be6 b7 Rh6 Nd2 Rh8 Qe1 Bf5 Bd3 Rh4 Nf1 Ra6 Qe4 Ra8 Ne3 Bd7 Ne2 Be8 Rg1 h1B Nc3 Ra6 Rg3 Nh6 g8B Rh5 g7 Nf5 g6 a3+ Kb1 a2+ Kb2 Kd7 d6 Qa5 d5 Rc6 Bc7 Rb6+ Nb5 Bf3 b8Q Bd1 Qa8 Bc2 Bh7 Rg5 g8B Rh5 g7 Rg5 Rb1 c3+ Ka1 Rh5 Rb4 Rg5 Bc4 e6 Ra4 Be7 Qc6+ Kc8 f8N Bg6 Bf7 Rh5 Qd7+ Kb7 g8B Ka6 Qc6 Rg5 d7 Nd6 d8Q Nb7 d6 Rd5 Rb4 Bh5 Be8 Bg6 Nd4+ Qb5 Bgf7 Ka5 Ne2 Qc5 Rb3 Qb5 Ra3+ Kb4 Ra5 Bf5 Bh5 Bg6 Ra7 Qc5 Nf5 Qf2 Ne3 Qf5 Bf3 Bd1 Nd7 c2 Nf4 Kc3 Nf6 Rb2 Ra4 Rb6 Ba3 Kd2 Bc1+ Ke1 Bd7 Rd4 N6d5 Rd3 Nc3 Rd5 Ba3 c1Q+ Nb1 Bf8 Qh4 Be7 Be8 Qd2 Bc1 Bc2 Nc3 Qh2 Qf6 Qh6 Qh4 Rb2 Ba5 Rb6 Bd7 Qe5 Bd2+ Kf2 Qc5 Bd1 Qed4 Be8 Bdb5 Bc2 Bhd3 Bg6 Qc6 Qf5 Qe4 Bd8 Kb2 Be7 Ka3 a1Q+ Ba2 Qh1 Kb2 Qe1 Bac4 Qg1 Bc1 Ke1 Ka1
NQN1rB1r/bRNPr1pq/K2n4/1R1Q3q/R2bR3/bB4k1/7R/Q2R4 b - - 0 1 legal: proof: e4 d5 g4 Kd7 a4 h5 gxh5 b5 axb5 Nh6 c4 Ba6 cxd5 Ng8 d6 Ke6 d7 Bc8 Be2 Ke5 Bf1 Kd6 d4 e5 f4 Bb7 d5 Kc5 d6 Bd5 exd5 e4 Qd3 Nc6 Qd1 Ne5 fxe5 Qc8 Bc4 Qb8 Bf1 Qd8 Kd2 Kd4 b4 f5 h4 c5 b6 a5 b7 c4 b8Q f4 e6 Ke5 Kc3 e3 e7 a4 e8R+ Kf5 h6 a3 b5 f3 Kb4 Kf4 h5 c3 h7 f2 b6 c2 Kb5 a2 b7 Ra6 h6 Ra4 Na3 Rc4 Nf3 Rb4+ Ka6 Qh4 d8Q Qh5 d7+ Qe5 d6 Kg4 Bc4 f1Q Nd4+ e2 Rh2 Qg3 Ndb5 Qff4 Nc7 Qc3 Na8 Qb2 Bb3 Qf3 Nb5 e1R Re4+ Kg3 Nbc7 Qbf6 Ba3 c1B Rh5 Qd4 Rb5 Qh5 Qg5+ Kf2 d8R Nf6 Qd5 Be3 d7 Rg8 h8N Ne8 h7 Nd6 Ng6 Kg3 h8R Qd3 Ne7 Ba7 Nc8 Rc4 Rb1 a1B Rde8 Rc1 Ra4 Qdh7 Ree4 B1d4 Ra1 Re2 Qh1 Rce1 Rd1 Q7g6 Rh6 Qh7 Qf1 Rh8 Qf6 Be3 Qa1 Bed4 Bb4 Qg4 Rh2 Qgh5 Reh4 Re8 Re4 Be7 Ba3 Bg5 Bb4 Bc1 Bc5 Ba3 Bb4 Nf7 Bf8 Nd6 Rf4 R1e5 Re4 Bab6 Qa7 Bbc5 b8R R5e7 R8b7 Bb6 Qb8 Bbc5 Qc4 Ba7 Qd5
1N2n1bn/8/N2rBNR1/5N1B/p1N5/N3b1k1/1PQ1Q1nn/BRQqb2K b - - 0 1 illegal: Other
1K5n/B2BQ1QP/1N1NQ1Rp/3Q2Rr/n3Q3/q3Rr2/n5r1/B1Qn2kb b - - 0 1 legal: proof: e4 b5 g4 d5 a4 f5 exf5 d4 axb5 d3 f6 c6 g5 Qd6 cxd3 Qb4 d4 Qd6 d5 Qd7 d6 Qd8 d7+ Kf7 Bd3 h6 Be2 Qa5 Bf1 Qa3 Nh3 Qd3 Ng1 Qh7 g6+ Ke6 gxh7 Kf7 h4 Ke6 f7 g5 Be2 g4 Rh2 Bg7 Bf1 Bf6 Rh1 Bg5 hxg5 Kd6 Ke2 Kd5 Kd3 a5 f8R e5 d8Q+ Bd7 b4 g3 f4 g2 b6 c5 f5 a4 g6 a3 g7 a2 f6 Ne7 g8Q+ Kc6 Kc4 e4 d4 e3 f7 e2 b7 e1Q d5+ Kd6 b5 Ke5 d6 Ke4 b6 Bf5 Kb5 c4 d7 c3 Nf3 g1R Nd4 c2 Nd2+ Ke3 Rh3+ Kf2 Nc4 Nec6 Qe7 Rg6 d8Q Rg7 Re3 Qe2 Bh3 Bg4 Nf5 Ra4 Bb2 Nd7 b8Q c1N b7 Nb6 Q8d5 Nd8 Nd6 Bf3 Bd7 Bh1 Bd4 Rb4+ Ka6 Qb2 Ka7 Na4 Qc2+ Kf1 Qc8 Qa3 b8B Rg5 Rb1 Rb2 Nb6 Rh5 Qce4 Rf2 Qgg6 Rf3 Qge6 Rg8 Qcc6 Rg6 Rg8 Kf2 f8Q Nf7 Kb7 Nh8 Ba7 Rg3 Rb2+ Kg1 Rg6 Rg4 Kb8 a1N Qfg7 Nc2 Reb3+ Ne3 Rg2+ Kf1 Qc3 Na2 Qc1+ Nd1 Re3 Rgg5 Ba1 Rgg3 Rh2 Kg1 Rh3 Rg2 Rhg3 Rf1 R3g4 Rf3 R4g5
b1B1NnbQ/2P2k1B/2B3QB/2nK4/q1N5/1Rb2rqp/1BQ5/b2NR2B b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 h4 f4 hxg5 f3 e4 Kf7 g6+ Ke8 g5 Ra6 g7 Rh6 g6 Rh5 Qd2 Rg5 Qd1 Rg3 fxg3 Nc6 g4 Nb8 g5 f2+ Kd2 Nh6 Bc4 f1N+ Ke1 Ne3 Bf1 Nef5 exf5 Ng8 Ke2 d5 Kd3 h5 Kd4 e6 c4 a4 b4 h4 c6 a3 c7 a2 f6 h3 c5 Qd7 c6 Nh6 g8Q Qh7 g7 Qg6 b6 Na6 f7+ Ke7 b7 Qh7 b8Q Nc5 g6 Bd7 c8B Nb7 c7 Kf6 b5 Bb4 f8B Ba3 b6 Bc6 Bg2 Bb2+ Nc3 Nf7 Rb1 a1B Qc2 Ne5 Nf3 Nd7 Ne5 Nbc5 Re1 Ba8 b7 Qh4+ Be4 Rh5 Nc4 Rf5 Bh6 Qg3 Bh1 Rf3 Bd6 Nf8 Be5+ Ke7 Qh8 Ke8 g8B Ke7 g7 Ke8 Bh7 Kf7 Bf6 Qg4+ Ke5 d4 Qa7 d3 b8N d2 Qa6 d1B Nd7 Qh4 Kd6 e5 Qb6 Be2 Nd1 Bc3 Rb3 e4 Qa6 e3 g8B+ Ke8 Bd5 Qd4 Nce5 Qa4 Bc6 Bc4 Qb6 Bd5 Nc4 e2 Bd4 Bg8 Nf6+ Kf7 Ne8 Re3 Kd5 Rf3 Rg1 e1Q Bdg7 Qg3 Re1 Ncd7 Qg1 Nc5 Qgg2 Bd2 Bb2 Bc3 Qg1 Qh4 Qg4 Qg3 Qgg6+
b1q1r1Q1/p1b2B2/2B1nKb1/1b2QN1k/2N3RB/2P5/3B1RB1/Bq2R1Nr b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Bc8 g5 Nc7 g7 Ne6 Ra4 Nf4 Ra1 Ng6 hxg6 Qb6 Ke2 Qc7 Ke1 Qd8 Ke2 h5 Ke3 e5 Ke4 d6 b4 h4 c6 h3 b6 h2 b5 Rh3 c7 Be6 c8N Bf7 b7 Bc4 b8B Rh5 f6 d5+ Kf5 e4 b6 e3 b7 e2 f7+ Kd7 Ra4 e1Q Qd4 Qee8 Be5 Ba2 b8B Bd6 f8R Bc4 Ne7 Bb5 Na3 Nh6+ Kf6 Qb6 g8Q Nf5 g7 Qc8 g6 Qbb7 Qa1 d4 Nc4 d3 Bg2 Nd4 Bd2 Bc7 Nf5 Ne6 Qe1 Rh3 Ba1 Rh4 c3 Rh6 Bf4 d2 Qe5 d1B Bd2 Bc2 Rb4 Bb6 Bd6 Bc7 Bc5 Qe4 Bf2 Qe1 Bh4 Qb1 Nh3 Rh8 Re1 h1B Ng1 Rh7 Nb2 Rh6 Rg4 Rb8 Nc4 Bd3 Bh3 Ba8 Bg2 Rh5 Qh8 Bde4 g8B Rh7 Rf7+ Ke8 g7 Bd3 Bg3 Rh1 Bh4 Qb7 Qh7 Rd8 Qg6 Qc8 Bh7 Bde4 g8B Bc2 Re7+ Kf8 Bf7 Re8 Rd7 Bd3 Rdd4 Bc2 Rdf4 Bce4 Rf2 Bd3 Ng7 Bc2 Qgg5 Bg6 Nf5 Bh5 Nd4 Qd1 Bhe4 Qb1 Bfg6 Kg8 Bc6 Kf8 Ne3 Kg8 Bf7+ Kh7 Qg8+ Kh6 Rfe2 Bg6 Ndf5+ Kh5 Nc4 Qc2 Rf2 Qe4 Qf8 Qb1 Qg8
2R1R3/1bbPRR1B/1krQ1N2/4nb2/3K1B2/B4QN1/pn1Q1n1R/rR3b2 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Qd6 d5 Qc5 Nf3 Qb6 Ng1 Qa5 bxa5 Kd7 Ba3 Kd8 Bc1 Ke8 Kf2 Kd8 Ke3 f5 d4 c5 g4 Kc7 e6 h5 b6+ Kb7 d6 c4 e7 a3 e8R h4 g6 a2 d7 c3 d8Q c2 g5 h3 d5 f4+ Kd4 f3 e4 h2 d6 f2 e5 Ra7 g7 Bg4 g6 Bh5 a6+ Kc6 b7 Bg4 e6 Rh4 e7 Nd7 b8B Ngf6 g8R Rb7 g7 Ne5 a7 Nd3 a8Q Nc5 Nc3 Rh6 Ne4 Nfd7 Rb1 Na4 Qd2 Rh7 Ne2 Ne5 N2g3 Nb2 Nf6 Bf5 Bd3 f1B Rh8 Rh3 g8R Rh6 Rh7 Bg7 Qd7+ Kb6 Be4 Bh8 Rf7 Rc7 Rgg7 Rc6 Rc8 Rg6 e8R Rg4 Rg1 h1B Rg2 Rg6 Rh2 Bf3 Ngh5 Rg1 Ng3 Rh1 Rgh7 Bg7 Rfe7 Bh6 Qe6 Bf4 d7 Rg1 Bd6 Bh1 Ba3 Bf3 Qf2 Rh1 Be3 c1N Rhf7 Ncd3 Qd2 Nf2 Bd3 B3e2 Be4 Ba6 Qd6 Bb7 Bc2 Be6 Bg6 Bf5 Bh7 B1h3 Qa4 Re1 Qd5 Rh1 Re1 Ned3 Qad1 Bc7 Q1f3 Ne5 Bf4 Rg1 Ra1 Re1 Qd6 Bf1 Rc1 Rd1 Rc5 Rb1 Rc1 Ra1 Rb1
1b5B/3qpr1b/1BB2q2/1B2Q1n1/1RRRN1NQ/1B1kPB2/Q5q1/2qbK3 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 fxg5 b4 h4 b3 axb3 Na6 b4 Nb8 b5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Nd7 g6 Bg7 h5 Bb7 g5 Bf8 g7 Bc8 Qb3 Ne5 Qd1 Ng6 hxg6 Bd7 Ra5 Bf5 Ra1 Bc8 d4 Kd7 b4 Kd6 b6 h5 b5 c5 e3 a5 b7 f5 b8R f4 b6 a4 b7 c4 Nc3 a3 Ne4+ Kc7 d6+ Kc6 d5+ Kb5 d7 a2 d6 h4 Qa4+ Kb6 Bb2 c3 Rc1 a1Q Qa2 h3 Bb5 c2 Nf3 h2 Ne5 f3 Ng4 Nh6 g8B Ra7 g7 Nf7 g6 Ng5 Bd5 Ra4 g8B Rd4 g7 Rh7 Bdc6 Qe8 Rf1 h1Q Bgd5 Qg2 g8B Bg7 Rh1 Bf6 Rh5 Be5 Bb3 Qd8 Bgd5 Rf7 Bc3 Qc7 d8Q Bf5 d7 Bh7 Qh8 Bf4 d8B f2+ Ke2 f1B+ Ke1 Be2 Qf6 Ne6 Qh4 Bd1 Rf5 Ng5 Bb2 Ra4 Bh8 Ka5 Re5 Kb4 Rf5 Qd7 Bb6 Qh3 Nef6 Kc3 Bf3 Rd4 Rd5 Qg2 Ne4+ Kb4 Rg8 Be5 b8Q Qb2 Rb1 c1Q Rc8 Bf4 Qe5 Bh2 Qf5 Bb8 Qe5 Qc4 Ng3 Kc3 Ne4+ Kd3 B3a4 Qa3 Rb4 Qab2 Bb3 Qa7 Be8 Qd7 Rcc5 Qc1 Bc6 Qb5 Rcc4 Qf5 Bed7 Qf6 Be8 Qa4 Bb5 Qa7 Bec6 Qd7 Rdxd4+
N2Q2qR/b5n1/2kPQRp1/4Q1Q1/1NBQ4/Q1b2B2/K4Bq1/nnN1n2b b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 a5 f7+ Kd7 g5 Ra6 f5 Rf6 gxf6 Bb7 Qb3 Ba6 Qd1 Bc8 h4 g6 h5 Nh6 Ra4 Rg8 Ra3 Rg7 Ra1 Ng8 h6 Nc6 hxg7 Nb8 Ke2 h6 Ke1 h5 d4 c5 Kd2 e5 Kc2 c4 b4 a4 Kb2 e4 d6 c3+ Ka2 a3 b6 c2 b5 e3 d5 h4 b7 e2 b6 e1B Ne2 h3 Nbc3 h2 Bg2 Ne7 g8B Qe8 Bf3 Bf2 Qd4 Bg7 f8N+ Kd8 f7 Qa4 f6 Qb4 d7 Qa5 Be3 Nbc6 b8Q c1Q b7 Bh8 Qg3 Ne5 b8Q Qf1 Qg5 Qg2 Raf1 Qa8 Nc1 Nd3 Qbe5 Ne1 Qe6 Kc7 d8Q+ Kb7 Nd7 Nf5 f8Q Ng7 Nb6 Bd7 f7 Bc6 d6 Be4 Q8f6 Kc6 Q8d8 Qc8 f8Q Bd5+ Ka1 a2 Na8 Be4 Kb2 a1N Qfe5 Qb8+ Ka2 Qc8 Rhg1 h1N Nd5 Ng3 Rh1 Ne2 Qff7 Qb8 Qfa7 Bg1 Bf2 Nc3+ Ka3 Nb1+ Ka2 Qc7 Rh4 Qf7 Qa3 Qe8 Bf7 Qg8 Rf4 Bh2 Rf6 Bf4 Rh1 Be3 Qdb4 Ba7 Qbd4 Qg4 Bd1 Bg2 Bf3 Qg3 Rh5 Bh1 Rh3 Qg2 Rh4 Nf5 Rh5 Bg7 Rh8 Bh6 Be8+ Kb7 Qgf4 Ng7 Bb5 Bg5 Bbe2 Kc6 Bc4 Bh6 Qfg4 Bd2 Qgg5 Bc3 Nb4#
8/6B1/2Qn4/1pr5/NRr2bbP/BR3r1k/BBBBr1N1/KN1rQrQ1 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 h5 b4 h4 bxa5 h3 g3 Be6 Bd3 Bd7 Bf1 Bc8 Ba6 g5 Bb2 g4 Bc1 Qd6 Bf1 Qh6 Nc3 Nc6 Nb1 Qh4 Bc4 Nd4 Bf1 Ne2 gxh4 g3 Nf3 g2 Ng1 Ng3 hxg3 Rh6 Bd3 Rh5 Bf1 Rh8 f4 Kf7 a4 Kf6 d4 e5 Kd2 c5 Kc3 b5 Kb2 c4 g4 e4 g5+ Kf7 d6 h2 d7 e3 d8Q e2 g6+ Kg7 f6+ Kh6 f5+ Kh5 d5 Kg4 f7 Rb8 d6 Bh6 f8B Ne7 g7 Be6 g8B Be3 d7 Kg3 a6 e1R a7 Bd5 a8Q Bh6 f6 Be3 f7 Be6 a5 Rc8 a6 Ng6 a7 Bd2 Qg5+ Bg4 d8B Bf4 Nh3 g1R Bd2 Re8 Bg7 Rc6 f8B Ree6 Ra3+ c3+ Ka1 Rc8 Rb3 Re7 Bd3 c2 Qc6 c1R a8N Ne5 Nb6 Re1 Na4 Nc4 Bc2+ R7e3 B8a5 Rh5 Bac3 Nd6 Bb2 Rf3 Be6 Re2 Qe1+ Kg2 Rb4 Rd1 Ba2 Rc7 Rf1 h1R Rb3 Nb7 Bfa3 Nd6 Rb4 Kh2 Rg1 Rc8 Rg3 Rhf1 Qg6 Rc5 Qg5 Be5 Nf4 Rc7 Ng2 Bf4 Qg6 Rc4 Qb7 R7c5 Qc6 R3f2 Rc3 Rf3 Rcb3 Kh3 Qg5 Be5 Qe3 Bf4 Qg1
2nB3Q/1rR2Bq1/NB2N2B/4r1Rk/2P1p3/n1r1b1p1/1nR1K1Q1/1NB1B3 b - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Na6 b4 Nb8 b5 Ba6 Bg2 Bb7 Bf1 Bc8 b6 a5 b3 h5 gxh5 a4 Bb5 a3 Bf1 Ba6 Qd4 Bb5 Qd1 Ba4 bxa4 Qc8 Ke2 Qc7 Ke1 Qd8 h4 Kf7 f4 g5 h6 e5 h7 d5 b7 g4 h5 d4 h6 a2 f6 Kg6 c6 e4 f7 d3 f5+ Kf6 a5 g3 c7 d2+ Ke2 Kg5 c8R Ba3 f8B Bd6 a6 Ra7 f6 Nd7 b8N Kg4 f7 Qc7 Be7 Nc5 f8B Qb7 Rh2 Qb4 Rc7 Nb3 Nh3 Qc3 Bd8 Qa5 Nf4 Qd5 Ne6 Rb7 a7 Nf6 a8Q Qf5 Na6 Ne8 c4 Qe5 Qc2 d1R Bh3+ Kh5 Rf2 Rg8 h8B Qg7 h7 Nc5 Bf5 Bf4 Bg6+ Kg4 Rh2 Nd6 Bf7 Nc8 Rh6 Na4 Rg6+ Kh5 Bb4 Rg1 Be1 Nb2 Qd2 Qd4 Bg7 Be3 h8B Re8 Bh6 Qg7 Qb8 Rf1 Qa8 Rf3 Qc2 Qg8 Bd4 Qh7 Bb6 Qg7 Na3 Re7 Rb1 a1N Qd2 Nd3 Rb2 Nc2 Nb1 Na3 Rc2 Re8 Kd1 Re7 Qg2 Nb2+ Ke2 Re8 Nd4 Re5 Ne6 Rb8 Qc6 Rb7 Qe8 Bd4 Qg8 Rc3 Qh8 Be3 Rg5+
1k5q/N5RQ/2Q1Br2/2B1q1n1/PQK2R1N/1ppR1Q1r/2Q1nQ1N/1q4b1 b - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 a4 cxd5 a3 bxa3 Ra5 a4 Ra6 a5 Ra8 g4 g5 fxg5 Bg7 h4 Bf8 h5 Be6 Ba6 Bf7 Bf1 Bg6 hxg6 Ra7 Na3 Ra6 Nb1 Ra8 Ke2 Kd7 Kd3 Kc8 a4 e5 d6 h5 g7 b5 g6 c5 g5 h4 d7+ Kc7 f6 h3 a6 h2 f7 b4 a7 b3 Qc2 e4+ Kc4 e3 d4 e2 d5 e1Q d6+ Kb7 Nf3 Qf6 d8R Qfe7 d7 Q7e3 Ba3 Nc6 Rg1 h1Q Nh2 Nce7 Bh3 Qc6 Be6 Nh6 g8Q Qe5 g7 Qd2 g6 Qcg2 Qh7 Qb2 g8Q Qe5 g7 Qdf2 Nd2 Qd6 Raf1 Nd5 Ndf3 Qe5 Nh4 Qff5 Rf4 Nc3 Qf2 Bd6 f8Q Ne2 Qgf7 Qgh3 g8Q Qb1 Qc2 Rc8 Qgg2+ Rc6 Qfh7 Nf7 Qgf3 Ng5 Rg3 Bb8 a8Q+ Kc7 Qfe7 Ba7 Rg8 Rd6 Rg7 Bb6 Qae4 Kb8 d8N Ba7 Qc6 Bb6 Kb5 c4+ Bc5 c3 Kc4 Ba7 Qfe4 Bb6 Rd3 Ba7 Qef3 Bb6 Bg8 Rf6 Bf7 Qc8 Be6 Ba7 Nb7 Qg8 Nd6 Qd8 Nc8 Qg8 Qf5 Rh5 Qh7 Qh8 Ba3 Be3 Bc5 Rhh6 Na7 Bd4 Qf1 Bg1 Q1f2 Rh5 Ng2 Rh3 Nh4 Qc8 Qf8 Qe8 Qe7 Qh8 Bb6 Ng3 Qb4 Ne2 Bc5#
2Q1NqB1/1Rr2QBr/qk2B2Q/2b1N1rP/1b2p3/1K5p/4R1Q1/1n1Q1Q1N b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 h4 a4 Be6 axb5 Bc8 h3 g5 Qb3 Nd7 Qc2 Ndf6 Qd1 Be6 Ra6 Bf7 Ra1 Bh5 gxh5 g4 Ra6 g3 Ra1 Ng4 hxg4 Rh6 Bd3 Rh7 Bf1 Rh8 f4 Kd7 b4 c5 d4 Kc7 Kd2 e5 Kc2 a5 b6+ Kb7 d6 g2 f6 c4 f7 h3 d5 c3 f5 e4 f6 a4 g5 a3 g6 a2 g7 Qe8 b5 Ra6 d7 Qd8 d6 Ne7 g8B Rh6 Bb2 Bg7 f8Q Nc8 f7 Qe7 d8N+ Kb8 b7 Ka7 d7 Rh8 Bc4 Rf6 Ne2 g1Q Qf1 Ra6 Na3 Rg6 Kb3 c2 Ne6 c1R d8Q Qgg5 Qdd1 Bf6 Ng3 Qgc5 Rh2 Rgh6 Ng7 Nb6 Ne8 Rc2 Nh1 Qf2 Be6 Rg6 Nc4 Nd5 Ne5 Rg5 Qh6 Rh7 f8Q Kb6 b8Q+ Qb7 Qc8 Nc3 Qf7 Qa6 Rg2 Qf4 Re2 Nb1 Qg2 Be7 Bd4+ Ka5 b6 Bc5 b7 Kb6 Bb2 Bb4 Qdf1 Rc7 b8Q+ Ka5 Qa8 Kb6 Qd5 Qf6 Qdd8 Qg7 Bc3 Qf8 Qdd1 Na3 Rb1 a1B Rbb2 Nb1 Ra2 Qb7 Ra7 Qa6 Nf3 Bc5 Bg7 Bc3 Ne5 B3b4 Rb7+
2B1rB2/3rRb2/6B1/BP4Kp/1n3QN1/2R1bbN1/kBp1qBQR/3q2N1 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 d5 axb5 e5 fxe5 Be7 c4 Ba3 cxd5 Bf8 hxg5 Na6 d4 Nc5 e4 Nf6 e6 Ncd7 e5 Ng8 exd7+ Ke7 d6+ Ke6 d5+ Kf5 Ra6 Kg6 Ra2 Qf6 Ra1 Qd8 Ke2 Kf5 Ke3 c5 g4+ Kg6 Kf4 a5 b4 h5 b6 f5 e6 a4 b7 a3 b8R a2 e7 Kf7 e8B+ Kg7 b5 c4 g6 Kf6 g5+ Kg7 Qd2 c3 Bb2 Ra7 Rb7 Nh6 Rh2 Qb6 d8B+ Be7 d7 Qc5 d6 Ng8 Bb6 Nf6 d8B c2 Bh3 Be6 d7 Bf7 Nc3 Qc4+ Ne4 Bc5 Be7 Qe2 d8B Bf2 Re1 a1Q Ng3 Qad1 Rc7 Rf8 Rc4 Rd7 Rc3 Kg8 g7 Be3+ Ke5 f4 Kf5 f3 Ba7 f2 Ba5 Bb6 Qf4 f1B Bg4 Bg2 Bc5 Ba2 Bg6 Re8 Bf8 Be3 Bd4 Bf3 Ba7 Bc1 Bf2 Nd5 Bh3 Nb4 Kf6 Rd4 Bc8 Rd7 Kf5 Bf7 Kf6 Qc4 Re7 Qce2 Bd3 Bc6 Nf5 Kh7 g8N Be3 Ngh6 Bf3 g6+ Kh8 g7+ Kh7 Ke5 Kg6 Qh4 Ba7+ Kf4 Bb6 Qg3+ Kf6 g8Q Bd4 Qg2 Bb6 Q8g4 Bc5 Re3 Bd4 Be4 Ke6 Kg5 Ke5 Bd3+ Kd5 Re7 Bc5 Qf4 Be3 Ra3 Kc5 Ng4 Kd5 Be4+ Kc5 Ng3 Kc4 Ra2 Kb3 Bg6 Qb1 Ra1 Qbe1 Rd1 Ka2 Rd3 Q1d1 Rc3
3N4/K2n1N2/1N2Rq2/1p3QB1/4Rq2/2rp2NB/1Qr1BkPr/1b1RNNn1 b - - 0 1 legal: proof: d4 c5 dxc5 a5 f4 f5 b4 g5 bxa5 g4 e4 g3 exf5 Bh6 hxg3 Nc6 g4 Nb4 g5 Nc6 g6 Bg5 fxg5 Nb8 Kd2 h5 Ke3 e5 a4 Ke7 c4 d5 c6 Kd6 g7 Kc5 a6 b5 f6 e4 a7 h4 g6 h3 c7 h2 f7 Ne7 f8N Ng8 a5 Nh6 g8N Bb7 c8Q+ Nc6 g7 Ba6 Be2 Rb8 a8R Rb6 Qd4+ Kd6 Qf5 Nf7 c5+ Kc7 Ra4 Qh4 Ne6+ Kb7 Nh6 Qf6 g8N Nfe5 Nd8+ Kc7 Nd2 Bc8 a6 Nd7 a7 Nce5 c6 Kd6 c7 Rc6 Qb2 Kc5 Nf1 Nf3 Nhf7 Rh3 Ne7 Bb7 c8B Rg3 Kf4 e3 Re4 Rc7 Rb8 Bc6 a8N Rh3 Bd1 e2 Ke3 e1Q+ Be2 Qg3 Rb6 Qf4+ Kd3 Bb7 Rbe6 Rg3 Nb6 Bc6 Qg4 d4 Nf5 Bd5 Qg6 Ba2 Bd2 Rh3 N5g3 Rc6 Kc2 Bb1+ Kb3 Qc7 Bg5 Qcf4 Na8 Kd5 Kb4 Rc2 Ka5 d3 Ka6 Rh8 Nh3 Ng1 Ka7 Kc5 Nb6 Rc3 Re3 Kd4 Qf5 Re8 Nf2 Rh8 Ng4 Rh5 Nge5 Rh3 Ne4 Rf3 Neg3 Rf2 Bd1 Rc2 Be2 Nh3 Rg1 h1R Re4+ Kc5 Ne3 Rh2 Rd1 Ng1 Nf3+ Q6e5 Qg4 Qg7 Ne1 Qgf6 R4e5+ Kd4 Nef1 Rh1 Qh3 Rh2 Qf5 Rd2 Re8 Nb8 Qg6 Rc2 Bh3 Nd7 R8e6 Qf3 Ne4 Qe3 Qf5 Qf4 Nfd2 Ke3 Ng3+ Kf2 Ndf1 Rc8 Re3 R8c3 R3e4
1Qn1NRq1/1NpN4/Nn1N1b1R/3R2r1/3PpN1n/2q3k1/B1bB2Q1/2K2Q2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 e4 f4 h4 f3 hxg5 Na6 g6 Rb8 g7 Rb6 g5 Rf6 g6 Rf5 Rh5 Rg5 Rh1 Rg3 fxg3 Nb8 g4 f2+ Ke2 Qd7 g5 Qd6 Bg2 f1N Ke1 Ne3 Bf1 Nf5 exf5 Qd8 b4 Kd7 d4 Kd6 Kd2 e5 f6 h5 f7 h4 b6 e4 b7 a4 b5 h3 b6 h2 Nh3 a3 Bc4 a2 Qf1 Na6 b8Q Bg4 b7 Bc8 Nf4 Nb4 Na3 Nd3 Nb5+ Kd7 d6 Be7 f8R Nb2 Bd5 Nh6 g8N Nf7 g7 Na4 g6 Rh5 Bc4 Nb6 Nf6+ Kc6 g8Q Rg5 g7 Bd7 Ne8 Bf6 Rb1 a1Q Ba2 Qc3+ Kd1 Be6 d7 Nd6 Bd2 Ndc8 Nbd6 Bc4 Rb2 Bd3 Rb5 Bc2+ Kc1 Qb3 Rg1 h1N Rd5 Ng3 Rh1 Qc3 Rh2 Nf5 Rh6 Qe7 d8N+ Kd7 Qh7 Qe5 Qg6 Nh4 g8N Qe6 Qg7+ Qf7 Qg6 Rf5 Qgg2 Rg5 Ne7 Qg7 Nec6 Qg8 Nb4 Ke7 Na6 Kd7 Nh5 Ke7 Qa8 Kd7 b8N+ Ke7 N8b7 Ke6 Nc4 Re5 Nf4+ Kf5 Qgf3 Kg5 Nd7 Kf5 Q3f2 Kg4 Ncd6 Rg5 Q2e2+ Kg3 Qa7 Qf3 Qb8 Qc3 Qeg2+
k7/1R3N2/QR1BNpK1/3B4/1pRQR1n1/Qrq2b2/R1PR2nN/1n2nb2 b - - 0 1 illegal: No possible last move, all moves rejected
1R1B4/K5b1/4N1pk/RRRr1r2/n5Q1/b2pn3/1bN1NPB1/1Q2QRbR b - - 0 1 legal: proof: e4 b5 c4 h5 g4 f5 gxh5 c5 exf5 d6 b4 Kd7 a4 Qe8 axb5 Nf6 b6 Nc6 b7 Nb8 b5 Ng8 d3 Kd8 b6 Qb5 Qc2 Be6 Qd1 Ke8 cxb5 c4 Bh3 c3 Bf1 Bc4 dxc4 Kd7 Ra4 Kd8 Ra1 Ke8 Ke2 Kf7 Ke3 a5 Kd4 e6 h4 c2 c5 g6 f6 a4 h6 a3 h7 a2 c6 d5 h5 Na6 b8Q Nc7 h6 Ne8 b7 Ra7 b6 Ra5 c7 Nd6 c8R Ne4 Qg4 Bg7 Bg5 c1B Rc5 Nc3 Ne2 Bf4 Na3 Bh2 Nc2 Bg1 Bg2 Na4 Rf1 Ne7 Rh5 Rg8 h8Q Rf8 h7 Rb5 Qe5 Rd8 b8R a1B+ Rc3 Rf8 b7 Bb2 Qe3 Ba3 Rc5 Rd8 Ra8 Ra5 b8R e5+ Kd3 e4+ Kd4 Rb5 Ra5 Rd7 Qc3 e3 Qe1 Rd6 Qhc8 Rd7 h8R Nf5+ Kd3 d4 Kc4 d3 Qb7 Bb2 Rh1 Ba3 R8h5 Bb2 Qb6 Rd8 Bh4 Kg8 Rg5 Kh7 f7 Kh6 f8N Rd5 Ne6 Ba3 Raa8 Ra5 Qbb1 Bgb2 Rbb5 Bg7 Rab8 Bab2 Nc1 e2 Kb4 Ne3 Rf5 Ra6 Ra5 Ra7 Kb5 Rf7 Ka6 Rf8 Re5 Rf5 Ka7 Ba3 Qc3 e1B Ne2 Bd2 Rcb5 Bdc1 Qe1 Bcb2 Rc5 Rd4 Rcb5 Rd8 Rec5 Rdd5 Bd8+
1kqr2R1/N2R1Q2/4P1K1/NBr2pp1/7Q/nN1Q3p/b1N2B2/b1NN1b1R b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 e5 fxe5 b4 g4 b3 axb3 Ne7 b4 Ng8 b5 Qb6 Qd6 Qc7 Qd1 Qd8 h4 f5 g5 Qf6 gxf6 g5 h5 Nc6 Nh3 Nce7 Ng1 Ng6 hxg6 Bb7 Nd2 Ba6 Nb1 Bc8 Kd2 Kd8 Ke3 Kc7 c4 h5 b4 a5 c6 d5 f7 h4 c5 h3 e6 a4 e7 a3 e8Q a2 g7 Rh4 b6+ Kb8 c7+ Kb7 c6+ Ka6 b7 Ka7 b8N Nh6 g8R Bg7 f8N Rf4 b5 Bd7 c8Q Rd4 c7 Be6 Nc3 Be5 Nfd7 Rd2 Na6 Rb2 Qd3 Rb3 Ndc5 Rb4 Qf7 Rh4 Nd1 Bh2 Nb3 Bd6 Nb4 Rf4 Nc2 Rf3+ Kd4 Be7 Ke5 d4 e4 Bd6+ Kf6 Ng4+ Kg6 Be5 Ne2 Ne3 Bb2 Rf4 Nec1 Nc4 Qcd7 Rh4 c8N+ Kb8 b6 Na3 b7 Rh7 Qg3 d3 Qh4 d2 Qd3 Ra5 Bd4 Rc5 Be2 Rh8 Bf2 Bb2 Rb1 a1Q e5 Bd4 Bf1 Qc3 Ra1 Bd5 e6 Qc4 Ra2 Ba1 Be2 Qa6 Bf1 Qc6 Na7+ Qc8 Be2 Nc4 Ra4 Na3 Rd4 Bc4 Rd7 Bd5 Nde3 d1B Bf1 Be2 Nd1 Ra5 Qc3 Ba6 Bb5 Bc4 Qd3 Bd5 Ba4 Rc5 Bc6 Bac4 Ba4 Bg2 Bb5 Bf1 Nbd4 Qd8 Rg7 Ba2 Ndb3 Re8 Rg8 Qc8 Rd4 Rd8 Rd6 Qd7 Rd4 Kc7 b8N Kb7 Nbc6 Qc7 Nca5+ Kb8 Rd6 Qc8 Rd7
3Q1Q1B/1rN2KPp/2Bp3N/4N3/1R1b2nr/R1nQBNk1/2N2Npr/3q4 b - - 0 1 legal: proof: a4 b5 axb5 g5 d4 f5 b4 e5 dxe5 d6 c4 g4 h4 f4 g3 Ba6 gxf4 Bg7 b6 Bc8 b7 Ne7 b5 Bh6 b6 Bg5 hxg5 Bd7 Rh4 Ng8 Rh1 Bb5 cxb5 Qe7 Qd2 Qf6 Qd1 Qd8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 a5 e4+ Kg6 Ke6 c5 f5+ Kg7 f4 c4 g6 g3 f6+ Kf8 f7 Kg7 f5 c3 Bg2 a4 Nd2 c2 Nh3 Kh6 f6 Na6 b8Q a3 b7 a2 b6 Qc7 f8B+ Qg7 f7 Ne7 Bb2 Rg8 Qd8 c1B b8N Ra7 b7 Ra8 Nd7 Nc8 b8N Ne7 Nc6 Nb4 Nd4 Ra6 Qb3 Kh5 Qd3 Qh8 Bh6 Kh4 f8Q Ra8 Be3 Nd5 Kf7 Nc7 e6 Kg4 e5 Ra7 Bc6 g2 Nc2 Ned5 e7 Nf6 e8N Rb7 e6 Ncd5 e7 Kh4 Ng7 Kg3 Nf3 Bd2 e8N Bc3 Rab1 a1R Nc7 Ra4 Rhe1 Rg4 Ra1 Rg5 Red1 Rh5 Nf2 Rh2 Rdb1 Be5 Ra3 Bc3 Qfe7 Re8 Qf8 Re4 Ba1 Reh4 Rb4 Bb2 Bd4 Ng4 Nf5+ Kf4 Nh6 Kg3 Be3 Bc3 Qe2 Qd4 Qc4 Qd1 Qd3 Bd2 Bg7 Bc3 Bh8 Bd4 g7 Nc3 Nde5
4Q1R1/1B1N2NN/P2NrQpR/1K6/BN6/pnNQ1r1q/1bp3q1/4Bn1k b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 h3 gxh3 Kd7 h4 Ke7 h5 Ke8 Nh3 b5 Ng1 a5 axb5 a4 b3 a3 b6 Bd7 Nc3 Ra5 Nb1 Ba4 bxa4 Ra8 d4 Kd7 Kd2 c5 Kc3 f5 Kc4 f4 h4 f3 e4 f2 a5 Be7 e6+ Kd6 b7 Qc7 a6 Nf6 h6 Qc6 h5 Qb6 h7 Ne8 h6 Ra7 e5+ Kc7 d6+ Kc6 d7 Bd6 d8N+ Kc7 d5 Ra8 e7 Rg8 h8N Ra7 h7 Qc6 e6 Bh2 d6+ Kb6 d7 Nc7 e8Q Nb5 e7 Be5 Nf3 Bb2 Rh6 Nd4 Bg2 f1Q+ Qd3 Rf8 Nc3 Nb3 Ng5 Rf3 Nhf7 g6 h8Q Qh1 Nd6 Qh3 Bd2 Qe4+ Qhd4 Nc6 b8N Nb4 Rh1 Nd5 Nh7 Kc7 Rh2 Ne3+ Kb5 c4 Be1 Nf1 Qf6 Qeg4 Bh1 Qgg2 Ndc6 Ra8 d8N Ra7 Nce4 c3 Nd7 c2 Nb4 Ra8 Nc3 Rb8+ N8b7 Rc8 Nf5 Rd8 Ne5 Rd6 Ng7 Re6 Nd6 Rf4 Qa8 Rf5 e8B Rf3 Ka4 Kb6 Bc6 Kc5 Qe8 Rf4 Bd7 Rf3 Nc8 Qh4 Rh5 Qgf2 Ng5 Rh3 Bb7 Qg2 Rh8 Rf3 Rg8 Qhg3 Rh6 Q3h3 Qb5+ Kd4 Nd6 Ke3 Nh7 Qe2 Bdc6 Qd2 Nd7 Qdg2 Bd2+ Kf2 Qd3 Kg1 Be1 Kh1 Bb5 Nd4 Ka5 Nb3+ Kb6 Rfe3 Ba4 Rf3 Kb5
2KR3R/1p1Nq2N/3Qp3/p3B2P/1q4bB/1kN1bB1n/3B2nr/1Q2BB1R b - - 0 1 illegal: No proof kernel
1K2N1bR/N5Q1/1kB1QrqQ/4Q1RR/1q1rp1pn/1QBp4/3r1N1P/3Q4 b - - 0 1 legal: proof: g4 c5 f4 d5 a4 b5 axb5 h5 gxh5 e5 e3 c4 Nf3 e4 Ng1 d4 d3 Nc6 dxc4 d3 c5 Nd4 exd4 Be7 Ra3 Bd6 Ra1 Be5 fxe5 Ke7 Ra3 Kd7 Ra1 Ke8 Kf2 Kd7 Ke3 Kc7 Kf4 a5 b4 f5 c4 a4 d5 g6 b6+ Kb7 e6 g5+ Ke5 f4 d6 a3 d7 f3 Kd6 f2 b5 a2 c6+ Kb8 b7 Ka7 c7 Rh6 c5 Nf6 c6 Nh7 b6+ Ka6 b8Q Bb7 c8Q Rg6 h6 Ka5 c7 Nf6 h7 Rh6 h8R Qe8 d8Q Nd5 Na3 Rh5 e7 Rh3 Qe6 Ra6 c8Q Rh6 Qcd7 Bc8 Bh3 f1Q Nb5 Qf5 Bd2+ Nb4 Kc7 Ra8 b7 Qh7 Bc3 Qf8 e8N Rf6 Qg7 Qg6 Qdd6 Ra6 Rc1 a1R Na7 Ra2 Bg4 Raf2 Nh3 Rd2 Rg1 Bd7 Qf4 Rd6 Nf2 Rd4 Qe3 Bc8 Qh3 Bd7 Qhh6 Bc6 Kc8 Kb6 Qbe5 Nd5 Kb8 Ne7 Ra1 Nf5 Ra5 Qb4 Rg3 Rd7 Rh3 Rd6 Rh5 Rd4 Q6d6 Ne3 Ka8 Qa3 Qee7 Ng2 Bd7 g4 Rag5 Nh4 Qde5 Bd5 Bc6 Ka6 b8Q Bg8 Qbb3 Qb4 Q7e6 Kb6 Kb8
1qnK1RNr/RQ4r1/BNBQr1q1/NP1N3p/6Nk/6p1/N3p3/Q1B4n b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 e5+ Kc5 a5 b4 c6 d4 a4 g5 a3 d6 e4 d5 a2 b6 e3 d7 Na6+ Kd6 c5 g6+ Kf8 f7 Kg7 f8N Kh6 b7 c4 b8Q c3 f6 c2 f5 Kg5 g7 Ra7 f7 Qf6+ Ne6+ Kh6 f8N Qd4 d8N Qg4 f6 Qe4 f7 Qc4 Nf4 Kg5 Nb7 Qc3 Kd7 Nf6+ Kd8 Qd3 g8B Ne4 d6 Qc4 d7 Nac5 Nh7+ Kf5 f8N Qe2 Bd5 Kg4 Bc6 Na4 Ngh3 Nd2 Nc3 Nb1 Na5 Kh4 Nf6 Qa6 Ng8 Nd2 Nfd5 Ne4 Qb7 Nf2 Be2 Nb6 Rf1 Nh1 Nf2 Qb5 Ng4 Nc8 Bc4 e2 Qd4 Qc5 Ba6 Qd6 b5 Qb8 Ne6 Rh6 Nef4 Re6 Nb6 Ra8 Nfd5 Ra7 Be3 c1Q Rf8 Qc2 Bc1 Qd3 Rb1 a1R Na2 Qg6 Rb3 Rb1 Qa1 Ra8 Ra3 Rb4 Ra4 Rf4 Ra3 Rf7 Nac4 Ra7 Qa8 Qh7 Bab7 Ref6 Ke8 Nf2 d8Q Qg6 Qd6 Nh1 Kd8 Re6 Ra6 Rh7 Na5 Ne7+ Bc8 Rb7 Ra7 Rh8 Nbc4 Nf5 Ncb6 Rg7 Nh2 Ne7 Ng4 Qb7 Qab8 Qa8 B8b7 Nc8 Ba6 Qb7 Qbc7 Qb8 Qb7
Q2n1B1b/NbRn1kq1/1Q2Qn2/1B1NR2r/Q6N/2q4r/R3r2P/1KQb1Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 c5 Kd2 f5 Kc2 g5 b4 a5 e4 f4 b6 a4 e6 a3 b7 c4 b5 f3 e5 g4 e7 a2 b6 g3 h6 c3 h7 f2 d6 g2 d5 Ra6 d7+ Kf7 e8R Qe7 d8N+ Kg6 d6 Qg5 d7 Bb4 e6 Qd5 e7 Nh6 Ba3 Ra8 Qc1 Qg8 Nc6 Kf7 d8Q Nd7 b8Q Nf6 b7 Ra5 Qa8 Rh5 b8Q Qg7 Nf3 g1R Qda5 Bb7 Qa4 Rg2 Na7 Rh3 Be2 f1B Nh4 Bd6 Qc7 Be5 Qb6 Rf2 Bc5 Bfg2 Rd1 Bgf3 Rd7 Bg4 Qf1 Rg2 Kc1 c2 Bb5 Bd1 Nc3 Re2 Nd5 Bd4 Rc7 Bc3 Rb1 a1N Rb2 Bd4 Ra2 Be5 Bd4 Nb3+ Kb2 Nc5 Ka1 Rf8 h8Q Nd7 Qh7 c1Q+ Qb1 Qe3 Qc1 Qc3+ Kb1 Rh8 Bf2 Nf5 Bg1 Nd4 Be3 Rh5 Bh6 Qg5 Bf8 Nc6 Rb8 Qg7 e8Q+ Kg8 Qg6 Nd8 Qgg4 Kf7 Qgc4 Nc6 Re8 Nd8 Qcc6 Bd4 Re5 Qh8 Qg1 Ng4 Re4 Qg8 Qg2 Bh8 Qf1+ Nf6 Re5 Qg7 Qe6+
rNr4q/1N2RRQq/Q2P4/2Nkn2R/b1rR2B1/q1RbK3/1bRQ1B1n/8 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 b4 c5 d4 e5 f4 h5 g4 a5 b6 h4 d6 a4 b5 h3 b7 h2 b6 a3 f6 Ke6 f7 a2 d5+ Kd7 f5 c4 f6 e4 g6 e3 g5 c3 g7 c2 g6 Be7 f8R Nh6 g8R Nc6 b8R Ra5 f7 Ra3 g7 Rc3 b7 Ng4 Qd2 Rh7 Nh3 Na5 Nf4 Rh4 Ne6 Rb3 Nc3 Bf6 Bh3 Bd4 Na4 Qf6 Nd8 Be5 Rb1 a1Q Rb2 Rb6 Re8 Rb4 f8R Qa3 Rf7+ Qe7 Rgf8 Nc4 g8Q Rh8 Qg7 Bd4 Qd3 Ne5 Qa6 Rc4 Rf3 Bc3 R8f7 Rg8 Bd2 c1R Rc2 Bb2 Be1 Rh8 Bg3 Ra1 Rd1 h1B Rd4 Rg8 R3f5 Be4 Bf2 Nh2 Rh5+ Bf5 Bg4 Ra2 Ke1 e2 Kd2 Ra1 Rc3 Rh8 Ke3 e1Q+ Be2 Qg1 Ra8 Qg6 Bg4 Qe6 Ra7 Bd3 Rc2 Rf8 Rf3 Rh8 Ref8 Ra2 R8f5 Qf6 b8N+ Ke8 Rg3 Bd7 Nc5 Ba4 Ndb7 Qef7 d7+ Ke7 Qh6 Qh7 d8Q+ Kf7 d6 Rg8 Qda5 Rc8 Qd2 Ra1 Nb3 Ke6 Qg7 Qd8 Rgh3 Qdh8 Rf7+ Qf5 Re4 Kd5 N3c5 Rb4 Rec4 Qfh7 R4c3 Rc4 R3h4 Rc1 Nd8 Rh1 Rae7 Ra1 Ndb7 Qa2 Qa7 Bb5 Bd7 Qb3 Qb6 Ra8 Qa6 Qa3 Re4 Bc6 Bg4 Ba4 Rd4+
qrQ3Bn/QP2r3/3bn1n1/1BBN1R1R/qN3Q2/N3KQ2/Qr4b1/Q4bk1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 b4 Kd6 g4 Ke5 d4+ Ke4 f4 e5 g6 a5 g7 c5 f6 h5 f5 h4 f7 c4 b6 c3 b5 h3 d6 c2 d7 h2 f6 a4 b7 a3 d5 a2 b6 Bc5 f8Q Bb4 d6 Qe8 d8N Bd7 g5 Nc6 b8Q Nge7 g8B Bh3 f7 Ng6 d7 Nce7 b7 Bd6 Qa7 Rb8 Be3 c1N+ Kd2 Ne2 Na3 Nd4 Nc6 Bg2 d8Q Ne6 Nb4 Qa4 Ne2 Kf3 Bc5 e4 Qc8 e3+ Kd3 Kf2 Nf4 Rh7 Nfd5 Nh8 g6 Rg7 Rc1 a1Q Be2 Rh7 g7 Bf1 Rc4 Kg2 Rf4 Neg6 Rf5 Rh6 Ke4 Rh3 Ba6 e2 Bb5 Rb3 Qe1 Qa2 Qa1 Rb2 Ke3 e1R+ Be2 Rd1 Bb5 Rc1 Qe7 Rc4 f8Q Rh4 Qef6 Rh7 Qb6 Qa8 Qa7 Qc4 Qe5 Qg4 Qf4 Qd1 Bf7 Qa4 g8Q Rg7 Qfe8 Rh7 Qgf8 Rg7 Bg8 Re7 Qef7 Bc4 Rf1 h1B Rh5 Bd3 Rf3 Bf1 Rf2+ Kg1 Qf3 Bg3 Q7f4 Bg2 Qg7 Rc2 Qgb2 Bh2 Qba2 Rb2 Rd2 Bg3 Rd4 Bh2 Re4 Bg3 Ree5 Bh2 Ref5 Bg3 Qh4 Bd6 Qhf4
5BRQ/bN3Rr1/bR4nq/1r5r/rn2K1N1/4NPQ1/2N1n2N/2NBQ1rk b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 d4 g5 h4 e5 b4 a5 f6 c5 f3 g4 b6 a4 h6 e4 h7 a3 b7 c4 h5 a2 h6 c3 b5 c2 b6 g3 f7 g2 Be2 Be7 f8N Qd7 Ng6 Bf6 Na3 Qf7 Ne5 Qg6 Qe1 Ra7 Nec4+ Kd7 d6 Ke6 d5+ Kf5 d7 Qh5 d8N Qe8 d6 Bg7 d7 Ra5 Bd1 Bf6 Nf7 Rc5 d8N Qb5 Rb1 a1R Ne2 g1R Nfe5 Rg7 Ng4 Na6 b8R Qc6 b7 Nb4 Nh2 Ne7 Ra8 Ng6 b8Q Qd6 Nb7 Rb5 Qc7 Qa6 Qcg3 Qe6 Bb2 c1N Nc2 Ra4 Ba3 Bh4 Kd4 e3 Ra7 Bd8 Rg1 Bc7 Rb3 Bb8 Rb2 Na6 Bf8 Nb4 Nba5 Ba6 Nb7 Nca2 Rb3 Nc3 Nc1 e2 N4e3+ Kf6 Qef2 e1R Qd2 Rf1 Qde1 Qh3 Rg2 Ne2+ Ke4 Rh1 Rg1 Rhg8 h8N Qh5 h7 Qh6 Nhg4+ Kg5 Nf7+ Kh5 h8Q Rh4 Ra8 Ba7 Ne5 Rh1 Rg2 Rg1 Rc8 Rh7 Nh2 Rgg7 N5g4 Kg5 Qf4+ Kh5 Rg3 Kh4 Rg2+ Kh3 Rc7 Qh4 Rf7 Rhh5 Rc3 Qg5 Rc6 Qh6 Rb6 Nd4 Rd2 Ne2 Qb8 Ra3 Rd8 Ra4 Nef1 Kg2 Qbg3+ Kh1 Nfe3 Nh4 Bd6 Ng6 Rg8 Rhf5 Be7 Rh5 Bf8
Bb2N3/1B1B2r1/Bb4r1/N3QP1q/RQ2n2n/2QK1N2/kbB2BR1/5nbb b - - 0 1 illegal: No possible last move
3nn1RQ/bb1k3P/2bBQ3/KN1q2NN/2Q1B2Q/R2bn1b1/4QrR1/r4Q2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Kc3 d5 Kb4 f5 c4 g4 h4 a6 e4 f4 e6 d4 h6 f3 e7 g3 h5 f2 h7 g2 e5 d3 h6 d2 b6 Bf5 c6 Bg6 b7 Bd3 c7 Qd5 c8Q+ Qd8 c5 Be4 c6 Bf3 c7 Bh5 Bd3 f1B Ka5 Bf7 b4 Bb3 b5 Bg7 b6 Bc4 Qe6 Qd6 c8Q+ Qd8 Ra3 Bb5 Be4 Bc6 Nc3 Nf6 Rh2 Rf8 h8Q Bd3 Nh3 g1B Qf1 d1B h7 Bf3 Ng5 Bg2 Qc7 Qd5+ Nb5 Bf2 Be3 Bg3 Bc5 Bh1 Bd6 Bf3 Ka4 a5 Rg2 Bh6 Nf7 Be3 Ng5 Bd7 Qc2 Nc6 b8R+ Nd8 b7 Bc6 Qc4 Bb6 Rc8 Ba7 b8Q Bb7 Qbc7 Bc6 Qb6 Bb7 Qg4 Bc6 Qh4 Kd7 Qe3 Ne8 Qee2 Rf5 Kb3 a4+ Kb4 Rf8 Ka5 Rf7 Rg1 Bh1 Rg2 Rf2 Rb8 Nc7 e8N Bb7 Ng7 Ne8 Rb3 a3 Nh5 a2 Ra3 a1N Rc8 Nc2 Rb8 Ne3 Rc8 Nf7 Rb8 Nc7 Rg8 Ne8 e6+ Kd8 e7+ Kd7 Qb4 Nd8 Qbd4 Rc8 Qa4 Rc1 Qc4 Ra1 Bg6 Qd4 Rh2 Bhc6 Be4 Qd5 Rg2 Nc7 e8Q+ Kc8 Qe7 Ne8 Qee5 Kd7 Qe6+
2rrn1RB/B2BN1qB/1k4B1/7b/4KQRb/NqPN2r1/1n1BR2r/1r2Q3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Ke3 Kd7 g4 Kc7 b4 h5 f4 e5 b6+ Kb7 f6 a5 g6 d4+ Ke4 a4 c3 a3 g7 d3 c6+ Ka6 b5+ Ka5 f7 h4 b7 h3 b6 h2 f5 a2 c7 d2 f6 Nc6 b8N Nce7 g5 Ra7 b7 Bg4 c8B Qb6 g6 Qe6 Bd7 Bh5 Nh3 Nd5 Nc6+ Kb6 b8B Nf4 Ne7 Qb3 Na3 Nd3 Nf2 Nb2 Rg1 h1R Rg4 Rh2 Qe1 d1R Bd3 Ra5 Rb1 a1Q Bd2 Rc5 Bc2 Rc8 Nd3 Rh3 Rc1 Rg3 Bb1 Rh6 Rc2 Rh8 Bh6 Qaa2 Re2 Rh7 Bd2 Rh6 Nc6 Be7 f8Q Qa1 f7 Bh4 Ne7 Nf6+ Kf5 e4 g8R e3 g7 Ne8 Ke4 Rc5 Rh8 Rh7 g8B Rc8 Bc2 Rh6 Bh7 Qaa2 Rhg8 Rb1 Nb5 Qa7 Na3 Rd6 Qh6 Qc7 f8B Qa7 Bc6 Rdd8 Qf4 Qb7 Bg7 Qd7 Rf2 e2 Bh8 Qc7 Bd7 Qa7 Qd1 e1R+ Re2 Rh1 Qe1 Rh2 Bdf5 Qf7 Bfg6 Qg7 Ba4 Qa5 Bc6 Qb5 Bd7 Qb3 Ba7+
b1Q1nR1R/6k1/1QRBB3/1Rn1KNqr/rn4r1/R4qP1/1NR5/rB2b1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
k4qB1/B6b/K2B4/1RRbB2N/nPNrrbN1/1Qqn2R1/1bB1r3/3Q1B2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Rh3 Kd7 Ke2 e5 Kd3 a5 Kc4 h5 f4 c5 g4 Kc7 d4 Kb7 f6 h4 g6 a4 g5 a3 b4 e4 f7 a2 g7 e3 b6 e2 Kb5 e1R d6 c4 g6 c3 d5 c2 d7 Rh7 f5 Na6 d6 Re6 f6 Re8 Nf3 Rb8 Na3 Re2 Nh2 Re1 Ng4 Re4 Qf3 Nh6 Rg3 h3 Be3 h2 Rc1 a1Q Bg1 h1B Qb3 Rh8 Bd4 Qe7 d8Q Qb2 d7 Rh7 Bc5 Qe8 Ka5 Bd6 f8N Ng8 f7 Ne7 Ne6 Rh2 f8B Nd5 Nf4 Rc4 Nh5 Ka8 Bd4 Nc5 b7+ Ka7 Bf6 Re2 Bd4 Ra8 b8R Nc3 Rb5 Na4 Bf6 Bf4 Be5 Rb8 Be7 Qg8 Bf8 Ka8 Be7 Nb7+ Ka6 Qf8 Bc5 Bc6 Ba7 Rce4 g8B Rc4 g7 Nbc5+ Ka5 B8b7 Bh7 Be4 g8B Rc8 Qc7 Bbd5 d8B Qd4 Bg5 Bd3 Bd6 Rce8 Bf6 Qb2 Bf5 Rd4 Qh7 R8e3 Bfe5 Qa1 Bd7 Bg6 Bf5 Qb2 Qc7 Bh7 Bd3 Ree4 Qc6+ Nb7+ Ka6 Qa1 Qcc3 Qb2 Qd2 Qa1 Rb1 c1B Qdd1 Qb2 Ra1 Qd2 Rb1 Bb2 Rc1 Qe1 Rc7 Qc3 Nc4 Nbc5+ Ka5 Ne6 Bc2 Nec5 Rc6 Nd3 Ka6 Bd2 Rc7 Bf4 Rcc5
qNBN1K2/1B2N2Q/3N1RN1/Q1rq2b1/P5nr/2R1q1kr/qQ4NB/5b1n b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 d4+ Ke4 a4 e5+ d6 b5 h4 g5 f4 g4 d5 g3 h6 b4 h5 b3 h7 b2 a6 c6 a7 g2 f6 Bd7 f5 Bc8 h6 Ne7 d7 Ng6+ d6 Rg8 h8N Rg7 h7 Qc7 d8N Nf4 f7 Nh5 f6 Bg4 Na3 b1Q Ba6 Bf5 Qd2 Qd7 Nh3 Kf3 Bc8 e4 Ng6 e3 h8Q g1Q Ne7 Rh7 Nc4 Qg8 Qb2 e2 Be3 e1Q Nf4 Ng3 Ng2 Bh3 Ra3 Rh4 Rc3 Qa2 Qh7 Bh6 f8N Bg5 f7 Qb7 Rh2 Nh1 d7 Kg3 Kd6 c5 Bg1+ Qe3 Nfg6 Nc6 f8N Rb8 a8B Ne5 Qa1 Qbb3 Qb2 Ng4 Bab7 Qb5 Nfe6 Qa6+ Ndc6 Qa8 d8Q Qf7 Qdb6 Qff3 Kd7 Qd5+ Nd6 c4 Ke8 Qb1 Rc2 c3 Ned8 Qba2 Rc1 c2 Qa5 Bf4 Rf1 c1R Kf8 Bg5 Rf6 Rc5 Ne6 Qa6 Ned8 Ra8 Nb8 Qac6 Ne1 Bf1 Rc2 Ra6 Ng2 Rb6 Ba6 Qa8 Bab7 Rb4 Rc3 Rh3 Rf4 Ne5 Rf5 Rbh4 Rf6 Ng4 Bh2+
r2n1BB1/3r1k2/2nq1N1N/R3qNP1/nbrQn3/QbQ2Q1K/4QQ2/3R1R2 b - - 0 1 illegal: No possible last move
N4R2/1r4b1/1Q1KQn2/q1P2r2/1q1Q1R2/Q1NQ2BR/q3Bbn1/3bqBkQ b - - 0 1 illegal: No possible last move
R1K2BrQ/qQP2n1b/br3q2/6B1/1B2B2q/4k2n/3Rbb2/BQNRN1B1 b - - 0 1 illegal: No possible last move, all moves rejected
4R1q1/P1Qb1NB1/2R1R2r/3n1R2/QNN2qRb/K1b1nbrn/B1R3k1/2B5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kf7 f4 Kf6 d4 e5 Kd2 b5 Kc3 g5 Kb2 c5 h4 e4 a6 e3 a7 g4 a5 g3 a6 e2 h6 e1Q d6 c4 d5 c3+ Ka3 c2 h7 g2 h5 Nh6 Ra2 Qe5 Nc3 Ng4 h6 Bd7 Nf3 g1N Bc4 Qee7 Nd2 Qe2 Rh4 Nh2 Rg4 Rg8 h8R Bg7 h7 Be8 d7 Qd3 d6 Qc7 d8R Nh3 d7 Qg3 Rc8 Nc6 d8Q+ Ne7 Bd5 Qg2 Nc4 Nf1 Qd7 Rb8 a8R Ne3 a7 Rb6 Be6 Qe5 Rc6 N7d5 Qc7 Bd7 Re8 Qg1 Rb2 Qg3 Na2 b4+ Ka4 b3 Ka3 Qg1 Nb4 Qg2 Ra2 b2 Qd4 b1B Re7 Rc8 Rhe8 Qg3 h8N Rd8 Bb2 c1B Nf7 Be4 Qd1 Bd2 Bc1 Bf3 Qa4 Bc3 Rc2 Bh6 Rh8 Bg5 Rhe8 Kg7 f6+ Kg6 f5+ Kh5 Nh6 Qg2 f7 Qf4 f8B Bh4 f6 Rc8 Bg7 Qg1 Rh8 Rg8 f7 Qg2 f8R Qg1 Be5 Rg6 Bg7 Ra6 Rgg2 Rg3 Bg8 Rb6 Nf7+ Kg4 Rfe8 Ra6 Rh5 Rb6 Rf5 Ra6 Rc5 Rh6 Rc6 Be2 Re4 Kf3 R4e6 Bd1 Rgd2 Be2 Rd4 Kg2 Nd2 Bf3 Nc4+ Qf2 Rde4 Qg5 Rg4 Qf4 Nd2 Qg1 Nc4+ Nf2 Bh7 Qh2 Re2 Qg5 Bh8 Qg8 Rfg5 Kf1 Rh5 Nh3 Bg7 Rg1 Bb1 Qf4 Rf5 Rg3 Ba2 Kg1 Rc2 Kf1 Nd2+ Kg2 Nc4+
1r3BbB/1BN2Q1Q/3N4/K3P1B1/b1rqQrR1/2BB3R/br1n1n2/kR4b1 b - - 0 1 illegal: No possible last move, all moves rejected
1NN1B1b1/r1Q1bqn1/1BR2R2/RR3N1k/2Q1PQn1/n3p3/KR1b1r2/2R2r2 b - - 0 1 illegal: No proof kernel
1K1Br1b1/4b3/1NNQ1N1N/n1B3P1/rQ1b4/2p2krB/1nR2NN1/RR3qn1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Kf4 c5 Ke5 h5 b4 c4 d4 e6 f4 h4 g4 h3 b6 h2 b5 a4 g6+ Kg7 b7 Kh6 d6 a3 b6 c3 d5 a2 d7 Na6 b8R Qe8 d8N Qb5 g5+ Kg7 b7 Qc4 d6 Qe2+ Be3 Ra7 d7 Be7 f6+ Kf8 f5 Qf3 f7 Kg7 f8N Nb4 Nh7 Ra4 Bh3 Qf1 Nf3 Nf6 Nc6 Nh5 d8B Ng3 Bc5 Ne2 Nbd2 Re8 Ne4 Ng1 Rc1 a1N Rc2 Nb3 Nh4 Na5 Nhf6 Bd7 Qd4 Bc8 Nf2 Nd3+ Ke4 e5 Kd5 e4 Ng2 e3 Qb4 e2 Ra8 e1B b8N Nb2 Nbd7 Nac4 Nb6 Na5 Ra7 Be6+ Ke5 Kf8 g7+ Kf7 g8N Kg7 Nh6 Bg8 Ra6 Bd2 Ra8 Be3 Rb8 Bh7 Ke6 Bg8+ Kd7 Bd4 Kc7 Bb3 Nh7 Bg8 f6+ Kg6 f7 Kh5 f8Q Ra1 Ne3 Ra4 Nf6+ Kh4 Kc8 Kg3 Ng2 Kf3 Ra8 Ne2 Rg1 h1R Kb8 Rh2 Be6 Rh4 Bh3 Rg4 Ra6 Rg3 Ra7 Qa1 Rb1 Ng1 Rd7 Be3 Rdd1 Bd4 Rdc1 Qa2 Ra1 Qc4 Rcb1 Qe2 Qf7 Qd1 Qe6 Qf1 Qd6
r7/3QNBb1/3N1BQ1/1q2n1KR/5P1R/1p2B3/kqNBbn2/R2rBBbn b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 h4 Kb4 f4 e5 a4 b5 d4 c5 d6 g5 d7 e4 a6 e3 f6 c4 h6 e2 a5 e1N h5 c3 d5 c2 d6 Kb3 a7 b4 a6 Nf3 f7 Be7 f8N Qb6 h7 Bd8 h6 Bc7 Nh3 Ne7 Na3 Qd4 Bd2 Qf2 Ng6 Qe3 Nf2 Bb6 Ne4 Bd4 Rh4 Rd8 h8R Qc3 h7 Nf5 Ne7 Nh2+ Kh5 g4 Kg5 g3 Qh5 c1B Nc2 g2 Qg6 Ng3 Rh5 g1Q Be1 Rg8 d8B Bb2 d7 Nc6 Nd6 Ne5 Bb6 Nhg4 d8B Nh1 Bd2 Bf2 Bbe3 Qc6 Ba5 Qh2 Be1 Qb5 Rh4 Bg1 Rh5 Rb8 a8B Ngf2 a7 Rd8 Be4 Bg4 a8Q Bd4 Qb7 Be2 Qd7 Ra8 Bd5+ Kb2 Rh4 b3 Bad2 Bc3 Bf7 Bd4 Rd1 Ka2 Rh5 Bc3 Rc1 Bd4 Ra1+ Kb2 Ba5 Ng3 Ndf5 Nc6 Na3 Bg4 Qe8 Bg7 Rh3 Rd1 Rh4 Nd3 Qd7 Nce5 Nd6 Nh1 Bab4 Qc2 Bbd2 Qb1 Nc2 Ndf2 Rb8 Be2 h8B Bf8 Bf6 Bg7 Rbh8 Qc1 Rb1+ Ka2 R8h5 Qb2 Ra1+
b2n3r/2Q1NN1b/1Nrr2B1/BQ3N2/4npq1/R3NP2/1KR4B/nQNqk3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 Kd2 Kd7 Kc2 c5 g4 a5 b4 f5 f3 e5 g6 h5 b6 c4 b5 e4 g5 h4 b7 a4 g7 e3 g6 c3 b6 e2 Rh2 e1Q Nd2 h3 Nc4 a3 Bd3 a2 Ne3 Qe8 Ne2 Nc6 b8N+ Kd8 d7 Ke7 d8B+ Kd6 b7 Qf2 Nd7 Qe4 Ba5 Nd8 Nb6 Nf6 g8N Ra6 g7 Qe1 Nh6 Qg4 g8N Ne4 Ne7 Be6 Kb3 c2 Kb2 Qf1 Bcd2 c1R b8Q+ Rc7 Nc1 f4 Be1 Qfg1 Rg2 h2 Rc2 h1B Bg3 Bg2 Bh2 Bh3 Qe2 Qd1 Qe1 Nf2 Bg6 Ne4 Qf1 Bc8 Qb5 Bb7 Na8 Bc6 Nhf5+ Kd7 d6 Ke6 d5+ Ke5 Nb6 Ba8 Qb7 Rc6 d7 Bf1 Qd3 Be2 Qb5 Bc4 d6+ Bd5 Nh6 Kd4 Qb8 Bg8 Qc7 Nb7 d8N Bh7 Ndf7 Nd8 d7 Rd6 Rb1 a1N Qb7 Nb3 Ra1 Rc6 Ra2 Na1 Ra3 Rd6 Nbd5 Rac6 Nb6 Rc4 Nb3+ Kd3 Nhf5 Nd2 Qe4+ Ke2 Nc1+ Ke1 Qb7 Ne6 d8Q Rcc6 Qdd7 Nd8 Qbc7 Rf6 Qdd3 Rfd6 Rcc3 Ne4 Qb1 Rc5 Rc2+ Rc3 Rd2 Rcc6 Rc2+
3N1R2/b1qN1bK1/k2n4/2r4B/N1QQPB2/b1N1B3/N1p1nr2/1q2NqRQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 Kc7 e4 Kb6 h4 f5 d4 a5 b4 c4 d6 c3 h6 a4 d5 g6 h5 a3 d7 c2 h7 a2 h6 Qe7 d8N Qf6 e6 Qh4+ Ke5 g5 e7 g4 e8N g3 d6 g2 d7 f4 Nc3 f3 Ne6 f2 d8N Be7 Qd4+ Bc5 Be3 Qg4 Be2 f1Q Nf6 Na6 Nf3 g1Q Qc4 Ka7 b6+ Kb8 b5 Ba3 b7 Qh4 Nc5 Ka7 b8B+ Kb6 Ne1 Nb4 Bh5 Ne7 Nfd5+ Ka5 b6 Nf5 b7 Qhf4+ Kf6 Nc6 Rh2 Be6 Rf2 Ncd4 N5a4 Qc7 Nb4 Bf7 Rf4 Re8 h8Q Ne2 h7 Re5 Rb1 a1B Nba2 Qh1 Rc1 Nd6 Kg7 Rc5 Rf6 Qc6 Bc7+ Qb6 b8N Qh2 Nd7 Qe5 Qd4 Ka6 Qg8 Qb1 h8Q Rc8 Bb8 Qh2 Rd1 Rf5 Qhh7 Rcc5 Rc1 Rf2 Rf3 Bg6 Rf8 Bf7 Rd1 Nb5 Bbf4 Nd6 Qg6 B1b2 Qg2 Bc1 Qh1 Bd2 Nb5 Ba5 Rc1 Bb6 Nbc3 Ba7 Nf3 Qfh3 Rg1 Qhf1 Ne1 Nc8 Bh6 Qc7 Bhg5 Nd6 Bgf4 Bg6 Qgd5 Bf7 Q5c4+
qb3Q1n/RN2r2R/2KR1B2/1r2Q2P/b1B1Qb1p/2RnnRq1/1R5k/3N3N b - - 0 1 illegal: No proof kernel
rQ1Q2b1/B4qb1/1R1n1qR1/1Qp4K/4PQNN/NQ3rR1/1qnQ4/n3kB2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 a5 h4 g5 b4 f5 e4 a4 d4 c6 b6 f4 e6 Kf6 Kg4 f3 d6 f2 b5 a3 d5 Ke5 b7 a2 d7 Bd6 b6 Qe8 d8Q Qf7 h6 Qd7 h5 Bc7 h7 Ra3 h6 Qe7 d6 Rb3 d7 Rg3+ Kh5 g4 Be3 Rf3 Nh3 g3 Na3 g2 Rb1 g1Q Qb3 Qgg7 Rg1 a1N Rg6 Qef6 e7 Na6 b8Q Nb4 e8Q+ Ne7 b7 Nbc2 Ba7 c5 Rb2 Rf8 h8N Kd4 h7 Be5 Qbc7 Nf5 b8Q Rg8 Rg3 Rf8 Ng6 Nd6 h8R Bb7 Rh6 Bd5 Nh4 Bg8 Rhg6 Qff7 Qc4+ Ke3 Rb6 Kd2 Qb3 Ke1 Qg5 Qgf6 d8Q Qh8+ Qh6 Bg7 Qeb5 Qf6 Qcf7 Qb2 Qf4 Qf6 Bg2 f1Q Nf2 Qc4 Ng4 Qcf7 Bf1 Re8 Qdd7 Rc8 Qd8 Qb2 Qb7 Ra8 Qbc8 Bf8 Qcc7 Qhf6 Qcb8 Bg7 Qhg5 Q6e7 Qgd5 Qef6 Qdd2#
k1nbKn2/2RQQN2/4B1Nq/BP1q4/1rR2p1N/1q1rN3/1nb2QN1/5NR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 Kc7 e4 Kb7 h4 a5 d4 f5 b4 a4 b6 g6 d6 c4 d5 c3 h6 c2 e6 a3 Ke5 a2 b5 g5 h5 g4 e7 f4 e8R g3 h7 g2 h6 Bg4 d7 Ba3 d6 Bh5 Ke6 Qg5 d8N+ Kc8 e5 Qg3 Bd2 c1Q Ba5 Ne7 Bc4 Qce3 Nf3 g1N Ne1 Qh2 Nf7+ Kb7 d7 Qc1 d8Q Bb2 Ng2 Nc8 Nd2 Na7 Ke7 Qg3 e6 Qf2 Nf1 Qc3 Rc1 Nh3 Rg1 Rg8 h8N a1Q h7 Qfd4 Ng6 Nf2 h8N Qb3 N6h4 Nd7 N8g6 Qd5 Qe2 Nd1 Qf2 Qaa4 Rf8 Rh8 Ke8 Nc8 e7 Bf6 Rc3 Kb8 b7 Nb2 Rg8 Nf8 Qd7 Bf3 Rg7 Bd1 Rh7 Bc2 Rg7 Qf5 Be6 Qfd5 Rc4 Qab4 Rh7 Qbd6 Rg7 Ra6 Rh7 Qb6 Rg7 Ka7 b8N+ Ka8 Nc6 Rg8 Nce5 Qbd6 Bd8 Ra4 Ng4 Rb4 N4e3 Rh8 Bc7 Rh5 Rh7 Rg5 Ba5 Rg3 Nef5 Rd3 N5e3 Qb6 Rh5 Qf3 Rhc5 Qh5 Rc7 Qb7 Qc6 Qh6 Qd7 Qd5 Kd8 Bh8 e8Q Bf6+ Qe7 Bg5 Ke8 Bf6 Qc5 Bd8 Qce7
Q3b2r/1b4Q1/1n2Knn1/Bp1QN2N/3Q1RQ1/k1qNQ1BP/B2b4/q1R1r3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Ke3 g5 Ke4 c5 d4 b5 a4 c4 a6 g4 h3 c3 a7 c2 h6 f6 a5 g3 a6 g2 e6 Kd6 Kf5 Qe7 e4 Bd7 e5+ Kc7 d6+ Kb6 d5 Kc5 h7 Kb4 Na3 Ka4 Qg4+ Kb3 Bf4 c1Q Nf3 g1N Bc4+ Kb2 Ne1 Be8 d7 Bf7 d8B Qc3 d6 Qf3 d7 Qb3 Bg3 Qd6 e7 Nf3 e8N Qd4 e6 Bb4 e7 Bd2 Rf1 Ne5 Ng7 Ng6 e8Q Qg1 Rf2 Qc3 Qe3 Be8 Ke6 f5 Nh5 f4 Bb6 f3 d8Q Qf1 Qdd4 Nd7 Bd5 Ngf6 Nc4+ Kb3 Nd3 Qe1 Rf1 f2 Rd1 Rg8 h8Q Ka4 Qg7 Rh8 Nce5+ Qc4 Bc5 Nb6 Bb4 Qb3 Bc4 Rc8 Bd5 Rc1 Bc4 Qc3 Bd5 Nc8 Ba2 Ra1 Ba5+ Ka3 a8Q Rb1 a7 Nb6 Qg2 Rc1 Rh1 f1B a8Q Be2 Rg1 Bf3 Rf1 Bb7 Qgd5 Ra1 Rb1 Qec1 Rf5 Q1b2 Rbf1 Rc1 R5f4 Qa1 R1f3 Rg1 Rf1 Rh1 Rb1 Re1 Rc1
BNk1q1bQ/2rq1Q2/1BR1n1pB/B2B2bP/BR6/1N2r2N/K2nq3/4r1Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 d4 c5 Kd2 f5 Kc2 a5 Kb3 f4 e4 f3 d6 c4+ Ka2 g6 b4 c3 h6 a4 e6+ Ke8 h5 c2 e7 Kd7 e8B+ Ke6 e5 f2 b6 a3 h7 Ra4 b7 Ne7 b5 Qa5 d5+ Kf5 d7 Qa8 d8B Rb4 e6 Qa4 d6 Nec6 b6 Rb3 d7 Ne5 e7 Ke6 Bg2 f1Q Nh3 Nf3 Bh6 c1Q Nd2 Re3 Rb1 Qcc6 Rb4 Qe2 Qg1 Na6 b8Q Nc7 b7 Kd6 Qa8 Ne6 b8N Rg8 h8Q Rg7 Ba5 Rf7 d8B Qd7 Ka1 a2 Nb3 Nd2 Qf3 Ba6 Qff2 Bc4 Ba8 Qac6 Kb2 a1R Bdb6 Re1 Ka2 Bg7 Qff1 Bf6 Qf5 Rh7 Bf7 Bg5 e8B Bd5 Rh2 Rg7 Rg2 Rh7 Rgg4 Qcb5 Rbc4 Ke7 Rc7 Kd8 Rb4 Bc4 Bg8 Qe5 Qf7 Bd5 Ra7+ Kc8 Ra6 Qdb5 Qff6 Nd4 Bc5 Rc7 Qe7 Qbd3 Ba4 Qdf5 Ba7 Qd7 Rc6 Bf7 Qef6 Qee8 B7b6 Bd5 Be6 Bc4 Bg4 Bg8 Bf3 Ne6 Bd5 Qd1 Qf5 Qe2 Qf7
5R2/2NK2N1/2BpR3/n1q4b/P1bR1nQ1/1Rb1r1n1/1BRQr2Q/k1qNR3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 g5 h4 b6 f4+ Ke4 c4 e5 a4 g4 a6 d6 f6 g3 h6 g2 c6 Bh3 f7 Qc7 f5 Nf6 a7 Rh7 h5 Be7 f8R Qb7 c5 Rg7 h7 Bd8 h8R Qc7 h6 Rf7 h7 Rg7 Re8 Rg5 Nf3 g1Q Nd4 Nh5 f6 Be6 f7 Ng3 f8R Bf6 Qd2 Qf2 Ba3 Bc4+ Kb4 b5 Ne6 Rf5 Ng7 Rf3 Rh3 Re3 Re6 Qg1 Bd3+ Kd4 Nc3 Qc1 Nd1 e4 Rh4 Qb6 c7 Re2 c6 Qc5+ Ka5 Be5 Rh3 e3 c8R Bf6 c7 Nc6+ Ka6 b4+ Kb7 b3 Rb1 b2 Be4+ Bd3 Ra1 b1B Rhg8 Kc4 h8Q Bc3 Rf4 Kb3 Rgf8 Bc4 Qh7 Nb4 Bc6 Bg6 Rd4 Bh5 Qh8 Rg2 Qh6 e2 Qhf4 e1N Qff2 Rg1 Qh2 Ng2 Rb1+ Qb2 Rc1 Ka2 Rc2 Nf4 Rce8 Rc8 a8N Rg2 R8e7 Rd8 c8Q Ka1 Kc7 Re8 Kd7 Qc1 Nc7 Rf2 Re1 Re2 Re6 Re3 Qd8 Re2 Qg5 Re3 Qg4 Re2 Ba8 Nc6 Bb7 Na5 Bc6 Ne4 Re3 Ng3 Red3 Bb2 Rb3 Bc3 Rh6 R8e5 Re6 R5e3 Bb2+
2BK2k1/1q1Q1Rb1/P2npB2/4qQNN/Bb1R3n/1BBb3Q/1N4r1/4B1rq b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 b5 Ke4 c5 Ke5 h5 d4 h4 a4 c4 g4 h3 f4 b4 g6+ Kg7 d6 h2 f6+ Kh6 f7 Kg7 d7 b3 Ke6 c3 g5 c2 f5 b2 d5 Nf6 d6 Nh7 Bh3 Ra7 Qf3 Qb6 Bd2 c1B Nc3 b1Q Nd1 Qc5 Be1 Ba6 d8B Qa3 d7 Qbd3 Bg4 Qd2 Nh3 Bb7 Rf1 Rg8 f6+ Kh8 Qh1 Bg7 f8Q Nc6 f7 Ne5 Qe8 Qdc3 f8Q Qd2 Bb6 Be4 d8B Bd3 Bd4 Rc7 Nb2 Qf4 Qg2 Be3 Rd1 Nf7 Rf3 Rc6+ Kd7 Bf2 Be6 Rc2 Bdc3 Bf1 Bf5 Ba7 Rd4 Nd6 Kc7 h1Q Bc8 Qb4 Qd7 Bf6 Qf7 Nf8 g7+ Kh7 g6+ Kh6 Qfe6 Rh8 g8B Qb3 g7 Qg1 Ng5 Qfe3 Bf7 Qh2 g8N+ Kg7 Rff4 Be5 Nf6 Ng6 Qeg4 Rf8 Q2h3 Nh4 Nh5+ Kh8 Bc4 e6 Rf3 Qb5 Bb3 Bd3 Be7 Rf6 Kd8 Bc5 Rf2 Rf4 Rf1 Re4 Rf7 Bg7 Bf6 Kg8 Qf5 Qef4 a6 Qh1 a7 Qe5 a8B Bb4 a5 Rg4 a6 Rg1 Bad5 Qb7 Ba4 Rcg2 Bdb3
r3R3/B3NpR1/1RBk2RR/3P3N/2nQr2b/b1Kb2Qq/4q1n1/r2NRB2 b - - 0 1 illegal: No possible last move
3Bn3/R2qPR1R/1r1Qn1rR/N4KRB/N3Nb2/q2q1n2/1pQ1bRQ1/7k b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 b5 Kf4 g5+ Kf5 c5 e4 g4 a4 g3 d4 b4 h4 c4 e6+ Kd6 e5+ Kc7 d6+ Kc6 d5+ Kc5 a6 c3 d7 f6 a5 b3 a7 g2 d6 b2 e7 c2 e8R Ba6 e6 Kc6 h6 Bg7 h5 Rh7 Nf3 g1N Be2 Nh3 Ng5 Qc8 d8N+ Kc5 d7 Nc6 Ne4+ Kb4 Bg5 c1Q Re7 Ng1 Qc2 Nf3 Nbc3 Rb8 a8Q Rb6 Rh2 Qe3 Na4 Qa3 Nb7 Nd8 Rf2 Qc7 Bd1 Be2 a6 Bh8 a7 Rg7 h7 Rg6 h6 Qc8 Kf4 f5 Rf7 Nf6 Na5 Ne8 Qb7 Bf6 h8R Be7 Qd5 Bd6+ Qe5 Bb8 a8Q Bc7 h7 Qb7 Kg3 f4+ Kg4 Bb8 Kf5 Bd6 e7 Ne6 d8R Qd7 Bf6 Bb8 Qd6+ Kb5 Bc3 Bc7 Nb7 Kc4 Rg8 Bb8 h8R Bc7 Rh6 Bb8 Qc7+ Kd5 Ba5 Kd4 Rgh8 Ke3 Qd6 Bc7 R8h7 Bb8 Rg2 Bc7 Rg5 Bb8 Ng3 Kf2 Ra2 Kg2 Ra1 Nh2 Ne4+ Kh1 Rc8 f3 Rc4 Ra6 Bd8 f2 Na5 Rb6 Rc3 f1Q+ Rf3 Bc7 Rf2 Qfh3+ Rg4 Qhd3 Rg5 Bf1 Bh5 Nf3 Ra2 Be2 Qd4 Bf1 Nb3 Rb5+ Nac5 Ng1 Qb8 Qb4 Ra7 Nf3 Na5 Rb6 Na4 Be2 Qe5 Qbc3 Qg3 Bf4 Qd6 Qa3 Qg2#
Q1Nr3R/brbQPnN1/1B1q3N/RB2Qp1N/3Bn1b1/1q3k2/Nr6/3N3K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg2 c5 d4 f5 e4 a5 h4 g5 b4 a4 d6 Ke6 d5+ Kd7 h6 a3 h7 g4 e6+ Ke8 e5 a2 h5 g3 h6 c4 b6 c3 b5 c2 b7 Qd7 e7 Kf7 e8N Kg6 e6 Nf6 e7 Nc6 b8Q Qa7 b6 Nd4 d7 Ba6 d8Q Rg8 h8B Be2 b7 Nf3 h7 Nd7 d6 Nde5 d7 Nd2 Nh3 Kh5 Nd6 Kg4 Nf2+ Kf4 Nc8 Qa3 Nc3 Bh5 Bb5 Ra4 Qdc7 Rd4 d8N Rb4 Qa8 Bh6 b8N Qb3 Nd7 Bg4 Nf6 Bg7 Qca5 Nf7 Ne6+ Ke3 Rh3 Rd8 Nh5 Be5 Neg7 Bc7 Ba3 c1Q Kh1 Ne4 Rh4 Rbd4 Bc5 Qca3 Bb6 Qd6 Qd2+ Kf3 Nfd1 Rb4 Qd4 Rf8 Q5a7 Rd8 Qe5 Bb8 Qd7 Bc7 Rb1 a1B Na2 Bd4 Ra1 Bg1 Nac3 Be3 Ra5 Bc5 Na2 g2+ Kh2 g1R Rh3+ Rg3 Kh1 Bg1 Ba7 Bc5 Qb2 Qbd5 Nf4 Qh6 Nge6 Bd4 Ba4 Rb7 Bb5 Qb3 Be5 Nf6 h8N Qg6 Ng7 Nd6 Nf7 Nfe4 Rh8 Rg2 Nh6 Nf7 Nfh5 Qd6 Qa1 Bg1 Qd4 Rb2 Qd5 Bgb6 Bd4 Bb8 Q5e6 B6c7 Bab6 Ba7 Qe5
1B2B1B1/1rPrQ1QR/6Q1/1Bq5/p3N1K1/2b1qB1R/kq1N3R/n1nB1n1b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 Ke6 e4 f5 g4 h5 c4 d5 b4 a5 b6 f4 b7 d4 g6 d3 g7 d2 g5 a4 b5 h4 b6 h3 g6 h2 c6 Qd4 c7 Ba3 c5 Qc3+ Kg4 f3 c6 f2 Ne2 Ra6 Ra2 Rh7 Qc2 d1N Bg2 f1Q Nd2 Rh3 Bf3 Bb2 Ng3 Nd7 b8R Qf2 b7 Qa3 Ra8 Qb3 b8Q Rh7 Qb7 Qc5 Ra7 Ne7 g8Q+ Rf7 g7 Bc3 Qe8 Qb2 g8B Rb6 Qf8 Qe3 Qg7 Nc5 Qd3 Bd7 c8B Nf5 Qc7 Rb3 Ba6 Rb4 Bb5 Nd4 Qb7 Nc2 Ra3 Ke7+ e6 Na1 Qc7 Rb3 e5 Rb4+ Nge4 Ncb3 Qc2 Qc5 Bbe2 Rb7 Ra2 Qb1 Ba3 Qb2 Qd3 Nc1 Qcd6+ Kd8 Qe7+ Kc7 Bb4 Qe3 Bd6+ Kb6 Bb8 Be8 Qc2 Rd7 Rb7+ Ka5 Rb3 Rb7 c7 Bc6 Rba3 Qb5 Qd3 Qbc5 Qdd6 Kb4 Rc2 Nb2 Bd1 Bd5 Qc6 Nc4 Qce8 Rf5 Qeg6 Rf7 Qef8 Rd7 e7 Bc6 e8B Bd5 e6 Bc6 Rf1 h1Q e7 Qh2 Rh1 Qhe5 Rh7 Qe5d4 Nb3 Nd2 Rb2 Nf1 Rbh2 Qdd2 Qff7 Qb2 Nbd2 Be5 Rd3 Bc3 Qff6 Ka3 Qh4 Rd4 Bd7 Rd6 e8B Rd5 Qhe7 Ka2 Nb3 Rd6 Nbd2+ Bd5 Bc6 Rd7 Bb5 Ka3 Bfe2 Qf2 Rdh3 Qe3 Nd6 Bg2 Bf3 Bh1 Nf7 Ka2 Nd6+ Qc4+ N6e4 Qd5 Nc4 Qdc5 Ncd2+
BQq2r1k/1n4Nn/1R1R4/1RN3bb/r2R1B2/r1RRBPK1/3Np3/3Qrr2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 e5 d4 c5 f6 a5 b6 g5 b5 c4 d6 e4 b7 c3 h6 c2 h5 g4 b6 a4 d5 e3 d7 e2 h7 g3 h6 g2 d6 a3 Rh3 a2 Rc3 Qe8 d8R Qb5 d7 Kg6 f7 Qd3 Nh3 g1R Nd2 Qg3 Ng5 Qc7 Ne6 Rg2 Ng7 Ra4 Rb1 a1R Rb5 Nc6 b8B Ra8 b7 Qg3 Bf4 Rh2 b8Q R1a3 Bg2 Be7 f8N+ Kf6 Nfe6 Qg4 Rb6 R8a4 Nc5 Qf5 Rb5 Na5 Ba8 Nb7 f3 Rh1+ Kf2 Re1 Kg3 Kg6 Rb6+ Nf6 Rd3 Rf8 h8R Kf7 h7 Rf1 Rg8 Qe6 h8R Nh7 Rd4 Bg5 Rdd6 Nf6 Rh6 Nh7 Rb5 Qc4 Rd3 Re1 Rhb6 Qc3 Bb2 c1R Be3 Qc2 Be5 Rf1 B5f4 Qc4 Qc2 Rce1 Qd1 Qe6 Re8 Qc4 d8R Bg4 Re4 Bh5 Red4 Qe6 R8d6 Qc8 Nge6 Kf6 Rg6+ Kf7 Ng7 Kg8 Rc3 Kh8 R6d5 Rf5 Rgd6 Rf7 Rdd3 Rf8 R5d4
2N1R1K1/1Q1r4/RQ1n1QQQ/Pr1rNB1q/1kN1p3/3bb1rR/2Q5/4Bn1r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 b5 d4+ Kb4 h4 g5 a4 c5 f4 e6 a6 c4 a7 c3 f6 c2 f7 g4 f5 g3 f6 g2 h6 Qe8 h7 Bc5 f8R Bb7 d6 Bc6 d7 Be4 d8N Qd7 h5 Qb7 d5 Bd3 f7 Bf2 d6 Kb3 h6 b4 d7 Nf6 Re8 Rf8 h8Q Kc4 h7 b3 Na3+ Kb4 Qg7 b2 h8Q b1R Nf3 g1R Nc6+ Kc3 d8Q Qb2 Qb6 Ne4 Bh3 Na6 Bf5 Ng3 Kf6 e5 Nc4 e4 Nfe5 Be3 Rh3 Nc7 Ne7 Qb5 Nc8 Kb4 Qhh6 Nf1 Qgg6 Rg3 Kg7 Rb3 Bb2 c1R Qc2 Rh8 Bd4 Rh7+ Kg8 Rb8 a8Q Ra3 Re6 Ne8 f8Q+ Nd6 Qf6 Rd7 Re8 Rd1 Qd5 Rg1 Bb2 Rh1 Bc1 Rb3 Bd2+ Rc3 Be1 Rbb7 Qc7 Qc5 Qdc6 Rb5 Q6b6 Rd2 Nf3 Qe5 Qcb7 Qh2 Nfe5 Qe2 a5 Qh5 Rb1+ Rb3 Rc1 Bf4 Qbd8 Be2 Nb2 Bg3 Qd1 Bf2 Rc6 Rg3 Qc2 Ba7 Ra6 Be3 Bf2 Rd1 Nbc4 Rd5 Qdb6 Bd3 Be1+
1BNQrb1K/4BN2/QQ2nB1P/7B/B1rbRp1b/R2N1B1q/5bb1/3n2k1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 e4 f6 Kg6 c4 d4 f5 b4 c3 h4 f4 e6+ Kd6 e5+ Kc7 d6+ Kb6 e7 c2 e8B a4 h6 g4 h5 g3 h7 a3 d5 a2 e6 g2 e7 Qc7 h6 Qc5 d7 Qc6+ d6 Bb7 d8B+ Qc7 d7 Nf6 Qd3 Ra7 Ba3 c1B Nh3 g1B Nd2 Bc6 Bg2 Bf2 Ne4 Ra6 Re1 Ra7 Nd6 Rb7 Bf3 Bd4 Nf2 Bd2 Re4 Nd5 Qe2 Nc3 Nd3 Be1 Bb2 Ka7 b6+ Ka6 Qf1 Bef2 Nc8 Nd1 b5+ Ka5 Bf7 Na6 e8B Nc5 Be7 Ne6 d8Q Qd7 Qe2 Rc7 b7 Bd5 b6 Kb5 b8B Rc4 b7 Bh4 Qf1 Bdf2 Bg7 Rg8 h8N Kc6 Kh7 Kb5 Rc1 a1B B7h5 Bad4 Ra1 Bc6 Bgf6 Bd5 Nc5 Kb4 Qe2 Kc3 Nd3 Bc6 Qa2 Bd5 Qa6 Kd2 Nf7 Bc6 Re1 Bd5 Ra3 Bc6 Bfg4 Bg2 Be2 Ke3 Qdb6 Qd5 Ba4 Qf3 Qd8 Qh3 Bhf3 Rg5 Kh8 Rd5 Qdb6 Rd8 Bh5 Re8 Bef3+ Kd2 Rg1 Ke3 Qd8 Nb2 Rb1 Nd1 Rb4 Bg5 Qdb6 Bgh4 Rb2 Qg3 Bbe5 Bg1 Qd8 Qh3 b8Q Bgf2 Rba2 Bfg3 Qbb6 Be1 Bb8 Beg3 Nb2+ Kf2 Nd3+ Kg1 Re2 Bgf2 Re4
1nR2NK1/R2r1p2/1NQnR3/3b1nR1/B1RQ1n2/n2R1N1P/Q2b3B/2krq3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 g5 Kd4 a5 b4 a4 e4 c6 b6 a3 e6 Kd6 e5+ Ke7 d6+ Ke8 e7 Kd7 e8R g4 b5 a2 h3 g3 h6 g2 h7 Nf6 b7 Ng4 b6 Qe7 Qe2 Ke6 d7 Kf5 d8R Kf4 e6 Nf6 Rd5 Ne4 Nc3 Na6 b8R Qd6 e7 Nac5 b7 Bg4 Rbc8 Ra5 b8N Na6 Nd7 Qe6 Na4 Bf3 Nab6 Nb8 Rg5 Bh6 Nf8 Nd6 Rh2 Rg8 h8Q Bd5 Nf3 g1N Qf2 Rg7 Bd3 Ra7 Bc2 Qe1 Kc5 Ne2 d4+ Qd2 Rh1 Ng3 Rd1 Qe3 Rd3 Ngf5 Rc3 Rg8 Rc4 Rd7 Ba3 Qe1 Qg2 Be6 d5+ Ke3 Bb2 Rg6 Be5 Rg7 Bh2 Rg6 Rb1 a1N Rbb4 Rg8 Ra4 Rg7 Ra7 Rg8 Bd1 Nc2 Qg7 Na3 Qa2 Kd3 Bc2+ Ke2 Qd4 Rg6 Bd3+ Kd1 Bc2+ Kc1 Ra8 Ndb5 d6 Bd5 Ra7 Rg7 Rg4 Bd2 Rg5 Rb7 d7 Nbd6 d8R Rd7 Rcc7 Rg6 Rdc8 Re6 Red8 Re3 e8Q Rd3 Qee4 Be3 Re8 Rd1 Re6 Bd2 Rc3 Qg3 Rd3 Qe1 Qdc4 Ng3 Kd4 c5+ Ke5 Ngf5 Qd4 c4 Kf6 c3 Rc5 Ba8 Rc4 Bd5 Ba4 c2 Bb3 Nh6 Kg7 Nhf5+ Kg8 Bb7 Rcc3 Ba8 Qc5 Bc6 Ba4 Bd5 Qac4 Kb1 Qed4 c1N Bc2+ Kb2 Qc6 Ne2 Qa2+ Kc1 Rc4 Nf4 Ba4+
R2b3B/1r2P2b/B2KNn1k/r5N1/n2R4/1Qb2q1N/b1RRRQ1p/2Qb2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 h5 Kf3 a5 Ke4 f5+ Kd5 Kf7 e4 Kg6 g4 a4 b4 h4 c4 d6 b6 a3 c6 f4 e6 a2 c5 h3 c7 f3 c6 h2 e5 f2 b5 Qf6 b7 Ra3 e7 Bg7 e8N Rh5 e6 Rh8 b6 Rg3 e7 Rc3 Qd2 Qf8 Bb2 Rf3 Ba6 f1B Nh3 Rh6 Rg1 Bh8 Nc3 Qf6 Re1 a1B Re2 Bg7 Ne4 Bf8 Ng7 Rh5 Ne6 Qf4 Bh8 Bd7 c8R Be5 c7 Rb3 Qc1 Qf6 Rd8 Bg7 c8R Qf3 Rcc2 Bgf6 Red2 Bd3 Re1 B7b5 Ree2 Nd7 b8R Nc5 b7 Na4 Ra8 Bbc4+ Kc6 d5 b8Q d4 Qa7 Kh7 g6+ Kh6 g7 Bc7 Qb6 Rd5 N4g5 Bh7 Qa7 d3 Qf2 Bb2 Rd6 Nf6 g8Q Ra5+ Rd5 Ne4 Rd4 Bc3 Qb8 Rb1 Qb3 Bd8 Kd7 Nf6+ Kd6 Nd7 Ne4 Nf6 g5+ Kh5 g6 Kh6 g7 Bd5 Qb6 Ba2 g8R Rb3 Rg1 Rb1 Rdd1+ d2 Qb3 Rb2 N4g5 Rb1 Rde1 d1B Red2 Rb2 Ree2 Rb1 Qd5 Rb7 Qb3
n2QnRbb/1Q6/2n1Rn1k/Q4rQ1/2Q3B1/2RK2pN/1BQP1B2/4qrbN b - - 0 1 illegal: No possible last move, all moves rejected
2N1Q1K1/n1RR4/1q2Q1B1/B5Nb/krRbP3/3r1QQr/pN4r1/Q1Qnn3 b - - 0 1 illegal: No possible last move
2nkB2b/1RBB2r1/4n2K/2PbnQ2/2q1r3/5Rp1/QRN2Q2/n1N1RRrR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Ke3 a5 Kf4 e6 b4 g6 h4 a4 c4 d4 b6 d3 c6 d2 h6 a3 h7 a2 h5 Ne7 Kg5 e5 f4 e4 c7 e3 b7 e2 h6 e1N b5 Nd7 b8R Ra3 c5 Bg7 b6 Nf8 b7 Be6 c8B Qa5 f6 Qd8 f5 Bd7 Qg4 d1R Bf4 Rad3 Bc7 Be6 Na3 R3d2 Ne2 Qd4 Nc1 Qb2 Bb5+ Nd7 f7+ Kf8 Rf1 Bd4 Nc2 Rg8 h8Q Qb4 h7 Ng2 Kh6 Ne5 Be8 g5 Bcd7 Nc8 Qf6 Re1 h8R Nf4 Qe2 g4 Qh4 Qc4 Qhf2 Ke7 f8R g3 Rb1 Qd5 Qa6 a1N Qa2 Rde2 Rb2 Ned3 Ra8 Re5 b8R R5e4 R8b7 Qc4 Ra3 Rd1 Re1 Ne5 Rf3 Bc3 Ba4 Bd5 f6+ Ke6 f7 Ke7 Bad7 Ne6 Rh7 Rg7 Rf6 Qb4 Qh2 Qb6 Re3 Qb4 Kh5 Rg1 Rf1 Ng4 Qf2 Rg8 Ree1 Qc4 Rh6 Bg7 Kg6 Bf6+ Kh7 Ne5 Rh1 Rgg4 Kh6 Bh8 Rg8 Qe2 Rg5 Qd3 Rf5 Rg7 Rf3 Qc3 Bd6+ Kd8 f8Q Qd4 Qf5 Qc4 Bc7+
R1Rn1K2/R5N1/Bn5B/rPQ4b/1bn5/k1B1nQBq/3prQ1B/2bB3N b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 Kd7 Ke5 a5 c4 a4 f4 e6 b4 d4 h4 a3 f6 a2 f7 g4 f5 d3 h6 g3 c6+ Kc7 h7 Kb6 f6 g2 c7 Bg7 f8Q Ba6 c8B Nh6 h5 Bb7 c5+ Ka7 b6+ Ka6 b5+ Ka5 c6 Nf5 c7 Ng3 h6 Rg8 h8B Be4 h7 Bh6 b7 Ne2 f7 Qh4 Kd6 Kb4 Na3 e5 Nh3 g1N Nc4 Nc6 b8B Nf3 Ne3 Nf4 Nf5 Ra5 Ng7 Nd8 Nf2 Bg6 Be2 e4 Ba6 e3 c8R Qh3 Ke7 Ne5 Bg4 Nc4 Qf3 e2 Be3 Nh5 Bh2 e1B Bef4 Bc3 Bfg3 Bc1 Rf1 d2 Nh1 Nf6 Qf2 Ne4 Bd1 Ka3 Re1 Bh5 Ke8+ Nc5 Re7 Ne5 Ra7 Bb4 Nf5 Qh4 Raa8 Rg6 Bf4 Re6+ Qe7 Ra4 Bh6 Qg3 Bb7 Nc4 Be5 Nd7 h8B Qh3 Beg3 Re2 Bhe5 Ra6 Qec5 Ndb6 Ng7 Ra4 Ke7 Ra7 f8Q Ra4 Rb1 a1N Q8f3+ Ka2 Kf8 Nc2 Bc3 N2e3 Rb3 Ba5 Rb4 Ra3 Ra4 Bb4 R4a7 Ra5 Ba6 Ka3 Rc6 Na4 Rcc7 Nab6 Rcc8
b4Br1/1RRN2rR/1b1n1RQ1/1P1nQR1B/2p1qb1R/2n2Q2/N5K1/1b2k1N1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 f4 Kd6 Kf2 Kc5 b4+ Kd4 f6 e5 g6 c5 b6 h5 f7 a5 g5 a4 d6 c4 b7 e4 f5 h4 f6 e3+ Kg2 a3 b5 e2 d7 Kd3 g7 a2 g6 Qa5 d8R+ Nd7 b8N Qb6 Nc3 Ra6 Ba3 Ne7 g8Q Qd4 g7 Nb6 Rd7 Nf5 Rc7 Nd6 Nd7 Be7 f8R Na4 Qd5 Rg8 f7 Bd8 Qe5 Ra7 Rc1 a1B Na2 Nc3 Qb3 Rh8 g8Q Bg5 Qd1 Bf4 Qg4 Rg8 Qg6+ Nce4 Rb1 Bb7 Rb8 Ba8 f8R Qd5 Rf7 Bd4 Rf6 Bb6 Rbb7 Qe6 Rf5 Nc3 Qb3 Qe8 Bb4 Qe7 Qa3 Kc2 d4 Kd2 d5 Qe6 Rb2+ Ke1 Rd2 Qe8 Rd4 Qe6 Rf6 Qf5 Rh3 Qe4+ Rf3 Nf7 d6 h3+ Kh1 h2 Kg2 Qc2 Rh3 Qb1 Rh7 h1B+ Kh3 Bd5 Re4 Be6+ Kg2 Bf5 Qb3 Qd3 Bc5 Qe3 Rd4 Bb1 Re4 Bg3 Reh4 Bf4 Rf5 Nd1 Qa3 Qe4+ Qf3 Nc3 Be3 Bh2 Bh6 Bf4 Bf8 Bd3 Nb8 Bb1 d7 Nd6 d8R Kd2 Nd7 e1N+ Kh1 Nd3 Be2 Ke1 Kg2 Nb4 Re8 Nbd5 Re6 Qd4 Qh3 Qe3 Bg4 Qe4+ Qf3 Ra3 Ref6 Rb3 Kh1 Rb2 Bh5 Rg2 Qge8 R2g7 Qg6 Bfe3 Kh2 Bf4+ Kg2
2qbn3/BQ1nrkN1/K1P1n3/3Bpn2/1R4R1/b2QB1r1/R4BB1/Nb1BQ3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 a5 Kd3 e5 Kc4 h5 f4 h4 b4 d6 g4 h3 b6 a4 Kb5 d5 c4 d4 f6 a3 c6 d3 f7+ Ke7 c7 h2 g6 a2 f5 d2 c5 Ra6 g5 Rh6 g7 Ra8 c6 Qd4 f6+ Ke6 b7 Na6 b8Q Bd6 f8Q Qg4 f7 Qf3 g6 Qf2 Na3 Qh4 Nc2 Qg5 Nh3 Qf4 Qd8 Rh7 f8B Rh5 Qe1 d1N Bg2 Rh8 Be3 Ra7 Qb7 Nf6 g8R Be7 g7 Ne8 Qd3 Qg4 Nf4+ Kf7 Ne6 Bd8 Bfc5 Nb8 Bb6 Bd7 c8B Nb2 Bf2 Rh6 Bbe3 Rg6 Rb1 Qh3 Na1 Na4 Rg1 h1N Rf8+ Ke7 g8B Rg3 Ng7 Nc5 B8d5 Ne6 Rf4 Qh8 Rg4 Kf7 Rf1 Rh3 Rg1 Ng3 Rh1 Nf5 Rh2 Rg3 Rb2 Nc7+ Kb6 Qe8 b5 Qg8 Rbb4 Ne8+ Qc7 Rb7+ Ka5 Qh8 b6 Ra7+ Ba6 Qf8 b7 Qh8 Nb3 a1B Kb5 Bb2 Na1 Qf8 Qb6 Bc8 Ka5 Nd7 b8B Rc7 Ba7 Ba3 Bb5 Ba6 Ba4 Bc4 Qa6 Ba2 Bd1 Bb1 Kb5 Nb6 Qb7 Re7 Ka5 Nd7+ Ka6 Ned6 Bgf3 Bc7 Bg1 Qc8 Ra2 Bd8 Bgf2 Ne8 Bg2
Q2q4/bb1N4/1pB2b2/1QRr1PR1/6rN/k4Q2/nrnQrBBK/2Q1NQ2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 Kd6 a4 c5 f4 g5 Kf2 e5 Kg2 c4 f6 b6 a6 c3 f5 e4 a7 c2 a5 g4 a6 e3 f7 g3 h6 e2 h5 e1R h7 Qh4 h6 Bd7 Nd2 Be6 Qf3 Qg4 Ra5 Bd7 Rh5 Nf6 Rc5 Ba4 Rg5 Be7 f8N Nc6 Nd7 Rac8 a8B Rhd8 h8Q Re3 a7 Bb5 h7 Re1 Qe8 Nb4 h8Q Qh4 Bc6 Ba6 a8Q Ne4 Qh6+ Bf6 Ba3 Nc3 Qee2 c1R Qb5 Rc2 Bc1 Bb7 Bb2 Ke7 d6+ Kf7 d5 Nca2 Bc3 Rb2 Bd4 Re2+ Bf2 Nc2 Qaa6 Qd4 Kh1 g2+ Kh2 Nc1 Qa1 Na2 Qc1 Ke8 Qhh3 Qh4 Qa3 Ra8 Ngf3 Ra4 Ne1 Rg4 Ndf3 Qh8 Nh4 g1B+ Kh1 Qf8 Qaf3 Bh2 Bg2 Qe7 Nf8+ Kf7 d7 Bb8 d6 Ba7 Kg1 Re8 Qh1 Qd8 Kh2 R8e5 Qg1 Rd5 Qf1 Qc7 d8Q Qe7 Qa8 Qd8 d7 Ke7 Qb4 Kd6 Qbd2 Qe7 d8Q+ Qd7 Qe8 Qc8 Rc3 Qd8 Re3 Kc5 Rc3+ Kb4 Nd7 Re3 Rc5+ Ka3 Q3e2 Ree5 Qb5 Re3 Qe4 Re2 Qf3+
b1BK4/1pQ2QB1/6Bb/1BnBqR1N/B1N5/1n1r2P1/1nrnQRR1/2k1r3 b - - 0 1 illegal: Other
1K2NQqQ/1p2rN2/5Qr1/Q3Qb1r/nQB3Pb/r2n3R/3bR3/kN1BB3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 h5 g4 e6+ d6 c6 a4 h4 f4+ Ke4 d4 h3 g6 h2 d5 e5 f6 Ne7 f5 Rh7 f7 Rh5 a6 Qc7 a5 Rg5 f6 Qd7 Kb6 c5 g7 c4 g8B c3 a7 c2 a6 Nec6 Bc4 Qe8 Kc7 Be6 d7 Nd4 d8Q Nf3 d6 Ne1 d7 Rg7 Nh3 Rh7 Bd2 Kd4 Nc3 c1B Ng5 e4 Ra2 e3 Qe2 Bh6 f8Q Qf7 Qb4 Nd3 Be1 Bf5 Qdf8 Qe6 f7 Rg7 d8Q+ Nd7 Rd2 Rg6 Qf6+ Ne5 Rc2 Nb2 Qc8 Na4 f8Q Qd5 Nf7 Bg5 Qcd8 Bh4 Ra2 Rb8 a8Q Bd2 Qde8 Rd8 a7 Rd6 Qeb5 Ra6 Q5a5 Qe6 Kb8 Qd5 Rf1 h1R Rf3 Qe6 Qh2 e2 Rh3 Qd5 Bg3 e1R Bh7 Re3 Be1 Re6 Qg3 Re7 Qh2 Bc1 Re2 Bd2 Bg8 Qe6 Bb3+ Kd3 Bc4+ Kc2 Qg3 Nd3 Qge5 Kc1 Bb3 Kb2 Bd1+ Qb3 Ng5 Ndc5 Bc4 Ka1 Nf7 Rd3 Q8h8 Bf2 Ne4+ Qc3 Rh4 Qd4 Nh6 Re8+ Kc7 Reg8 Qaf8 R8g7+ Kb8 Ra3 a8N Nd3 Nc3 Re7 Nc7 Qd5 Ne8 Qg8 Nf7 Bg3 Rh3 Bf2 Rhe3 Rh5 Rh3 Bh4 Nb1+
2R1Q1qR/q4Nn1/R1Q2Qr1/1k4N1/1PnBN1n1/2pNN3/6Nb/n1rbK2B b - - 0 1 illegal: No possible last move, all moves rejected
B2Q4/1NBB1n1Q/6R1/n4p2/1RbqQPR1/Kn1nB1r1/2BB2rb/3Nqk2 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 Ke7 Kc3 Ke6 Kb2 Kf5 e4+ Ke6 h4 d5 f4 a5 c4 f5 b6 g5 b7 d4 h6 d3 h7 a4 c6 d2 c5 g4 h5 g3 h6 g2 c7 Bg7 c6 Bd7 c8B Qe8 c7 Nf6 Nf3 g1N Bg2 Ng8 Rh4 Ne7 Nd4+ Kf7 e6+ Kf6 e5+ Kg6 Nc6 Bf6 Ka3 Ra6 Rg4+ Kh5 Nc3 Nf3 Rb1 Ng8 e7 Be6 Nd8 Bh4 Bd7 Ne1 c8R Nd3 Rb4 Bg3 Rc6 Bc4 Rcg6 Bh2 e6 Nc6 b8B Na5 Ba8 Rb6 Qh1 d1Q Bd2 Qe1 Nb7 Qd8 e8Q Rc6 Rg2 Kh4 e7 Kh3 Nd1 Rf6 R6g4 Rg6 Bc7 Rg5 Qf7 Rg7 e8B Qf6 Re2 Qd4 Re6 Rg5 Qe4 Rg6 Rg1 Rg3 Rg6 Rg2 Qf6 Rg3 Qd8 Rg2 Rf1 Rg3 Rf3 Kg2 Rf2+ Kg1 Rg2+ Kf1 Bf7 Bb5 Bb3 Bc4 Ka2 a3 Be3 Rh3 R2g4 Rg3 Bd2 Ne7 Be3 Rg8 h8Q Nc8 h7 Nd6 Qg7 Nf7 h8B Rg2+ Bd2 Rg3 Qh7 Rg2 Bhe5 Rg7 Bb6 Rg8 Bec7 Rg7 Kb1 a2+ Kc2 a1N+ Kb1 Qe5 Ka2 Qd4 Ka3 Rg3 Bc2 N1b3 Rh6 Rg5 Rg6 Rg2 Rh4 R5g3 Rhg4 Qd5 Bf2 Qd4 Bfe3
7q/Q3bBBb/rnN2r2/1KPRB1nN/4Bb1b/B1pR2q1/Q2N1k2/1RB5 b - - 0 1 illegal: No proof kernel
k3R1Rn/1RRbq2N/1r1n1Pp1/8/NBr2Q1Q/bN5B/2b5/K1bqRRB1 b - - 0 1 illegal: No possible last move, all moves rejected
Q3rQr1/B2r4/2K1bp2/Nn2q1NR/QR1b2B1/PN4NN/1q2R2n/2Nr3k b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kf3 b5 Ke4 g5 h4 c5 d4 b4 e6 Kf6 a3 c4 h6 g4 d6 g3 Kd5 Kf5 e4+ Kf6 e7 g2 e8N+ Kg6 h7 c3 e5 Kf5 d7 f6 e6 b3 e7 c2 a6 b2 a7 Nc6 h5 Ne5 h6 Rb8 a8Q Rb7 Nd2 Kf4 Nd6 Kg3 e8R b1R Rh5 R1b6 N6e4+ Kf4 Rb1 Nf3 Nh3+ Kg4 Rb4 g1R Be2 Rg2 Ng3 Rc7 Nb3 Rcb7 Be3 Rf2 Nc1 Qc7 d8N Bc5 Nc6 Rf1 Na5 Re6 Nab3 Re7 Bf2 Qe5+ Kc6 Rbd7 d5+ Bd4 d6 Rg7 Re6 Rge7 Bg1 Re8 Bf2 Ba6 Re7 Bc4 Be3 Be6 Bg1 Ra7 d7 Rb7 d8N Rd7 Nb7 Re1 Na2 c1Q+ Qc2 Qb1 Nac1 Rd1 N7a5 Qa2 Qc4 Qb2 Qb5 Qa1 Qa4 Qb2 Bd3 Nh2 Bf5+ Kf3 Bg4+ Kg2 Be3 Qg5 Bf2 Bf5 Re2 Ne7+ Kb5+ Nd5 Kc6 Rhf8 h8N Nc3 h7 Rg8 Nf7 Be6 h8Q Qe5 Nfg5 Nb5 Qg7 Rg1 Qf8 Rd1 Nf5 Kh1 Be3 Bc3 Ba7 Bd4 Ng3+
2q4r/R7/n2p3Q/b4B1N/Q1qBnbQ1/1RN2P1b/BbKN1k2/1Q1Qr2Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 h4 Kf6 c4 Ke5 b4 Kd4 f3 g5 b6 a5 c6 e5 b5 e4 b7 a4 c7 a3 h6 e3+ Kc2+ Ke5 h7 Kf4 h5 Kg3 h6 d6 f6 e2 f7 e1B b6 g4 c5 a2 c6 Qd7 Nd2 Na6 b8N Qe8 b7 Qe6 Nd7 Be7 b8Q Bg5 f8Q Bf4 Bc4 Qe3 Qe8 Bg5 Qb1 Kf2 Bb2 g3 Ne2 g2 Bd4 g1B Nf6 Ne7 Nh5 Bf4 Nc3 Bg4 c8Q Ng8 c7 Nf6 Qa4 Bh3 Qg4 Rae8 c8B Ne4 Bf5 Re7 Be5 Qc5 Bd4+ Be3 Bg8 Qc8 Bb3 Bh2 Bc4 Bf4 Rg1 Rf8 h8Q Be5 Qf6 Rh8 h7 Bf4 Qh6 Be5 Qb2 Bf4 Rb1 a1Q Ba2 Re6 Qbc1 Be5 Rb3 Bg7 Be5 Bf4 Qb1 Bf6 Qg8 Qc4 Rg7 Qc8 Ra7 Qb2+ Kd3 Qc1 Qg4 Ree8 Ne2 Q1c5 Nc3 Qc4+ Kc2 Bd8 Bf6 Ba5 Nf1 Bed2 Bd4+ Bde3 Nd2 Re7 Be5 Bc5 Bg7 Ba3 Bf6 Bb2 Bg7 Rd8 h8Q Rf8 Q8h7 Rh8 Bd4+ Be3 Qhg8 Nec5 Qge8 Re4 Bg7 Bf4 Qee6 Re3 Qe4 Re2 Qd3 Re1 Qf1+ Ke3 Be5 Ne4 Qh1 Kf2 Bd4+
K3R1n1/Q1B1n1N1/2Qpr3/Q1N2RnB/1nq2b2/rN4q1/1Q1P1B1Q/3k2Qr b - - 0 1 illegal: No possible last move
rb2r1k1/1N3B2/1N1QN3/2R3K1/r2N1R1r/2pbrr2/NnPR2Q1/B1q1B1N1 b - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 b5 fxg5 b4 h4 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 Ne7 h5 Bh6 g6 Ng8 g5 Bf8 g7 Nc6 Ra6 Nce7 Ra1 Ng6 hxg6 Qe7 Rh2 Qf6 Rh1 Qd8 Kd2 f5 Ke3 a5 Kf4 d5 e4 c5 b4 h5 e6 c4 e7 a4 e5 d4 b6 h4 b7 d3 b8B a3 b5 h3 b6 d2 b7 h2 Bb2 a2 Nc3 Nf6 g8R Ra5 g7 Kf7 e8N Rh3 g6+ Ke7 e6 Ra4 Nc7 Ne8 Kg5 Kd6+ e7 f4 Ne6+ Kd7 Rh8 f3 g8N f2 g7 Rd3 Nh6 Nd6 g8Q Ke8 Nf5 Re3 Nfd4 Qd7 Rc1 a1R Na2 c3 Rh4 Nc4 Bg3 Qd8 b8N Ba6 Bg2 f1R Rf4 Rff3 Be1 Qd6 Bf1 Qa3 Nd7 Bb5 Nb6 Ra8 Qe2 d1R Qd3 Rd2 Rd1 Rde2 Rd2 Ra4 Nb4 Ra2 Ba1 Qc1 Bg2 Nb2 Bh3 R2a3 Na2 Ra8 Bf5 R3a4 Be4 Ba6 Bd5 Bb5 Qf5 Bd3 Qe5 Rc4 Qd6 Rca4 Qh7 Bg7 Qh3 Bh8 Qg2 Be5 Rh4 Kf7 e8N Kg8 Rf4 Kh8 Be4 Kg8 Bg6 Kh8 Bf7 Kh7 Qc5 Bb8 Nd6 Kh8 Nb7 Kh7 Ng7 Re8 Qd6 R2e3 Nge6 Kh8 Nge2 Kh7 Rf1 h1R Ng1 Rh4 Rf5 Kh8 Rc5 Kh7 Bh5 Kg8 Rff2 Rfh3 Rf4 Rhf3 Bf7+
6q1/1nrr1Q2/kpQ1B2r/8/1r1B2nN/K1Q1BnRb/QP1R1Q2/1N2Q1nR b - - 0 1 illegal: No extended proof kernel
R2B2N1/NBnR1r2/R2nR2n/1Q3pK1/1RRbNPB1/1bp1Qq2/5rb1/2k5 b - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 e5 hxg5 Qd6 dxe5 Kd8 c4 Ke8 cxd5 Qd8 Kd2 Kd7 Ke3 f5 Kf4 h5 b4 c5 e4 a5 g4 a4 b6 a3 g6 c4 g7 h4 d6 Kc6 e6 Kb5 b7 h3 d7 h2 g5 a2 e5 Rh5 e7 Ra6 e8B Qf6 d8R+ Nc6 b8Q+ Rb6 g6 Rb7 e6 Rh8 e7 Rb6 Bg2 c3 Qe2+ Ka4 b5 Kb3 Qe3 Kc2 Nd2 Rh7 Ngf3 Nh6 g8R Bg7 Ne4 Nd4 Rd7 Qe5+ Kg5 Rd6 b6 Bf8 b7 Qb5 g7 Qc6 Ne5 Nb5 Bh5 Rd2 e8R Nc7 Bg4 Bc5 Re6 Bd4 f3 Qd5 Nc6 Rf2 Na7 Qc6 Rd1 h1B f4 Qd5 Ba3 Qc6 B2f3 Bg2 Be7 Kb2 Rh8 Kc2 g8N Rf7 Bd8 Kb2 Rac1 a1N Re1 Nc2 Ra1 Qd5 Raa6 Na3 Rb1+ Kc2 Rb4 Nab5 Rc4 Kb2 Qa8 Nd6 b8R+ Kc2 Rbb4 Qb7 Qb8 Qc6 Nd2 Kc1 Qb5 Qe4 Ne7 Qd3 Bb7 Qe4 Re8 Qc6 Ng8 Qf3 Rde7 Bd7 Rf8 Bc6 Rd7 Be4 Rfe8 Bc2 Rf8 Bb3 Ne4+ Kd1 Bf6 Kc2 Ra8 Kb2 Bd8 Kb1 Qd3+ Kc1 Qe3+
4BR1B/nq1N2Q1/3BkpPQ/1B2B1rb/2R1r1Rn/2b1r3/3B1Np1/n2K2Q1 b - - 0 1 illegal: No proof kernel
2B1Nn1r/2b3n1/rPb3N1/4bRQp/N1B3r1/1p2qNBk/RN1R4/1Q1N3K b - - 0 1 illegal: No proof kernel
2B4r/1q2Qpn1/3b1Np1/n3n1K1/R3QR2/rb1QRP2/1QNQ1k2/1BBQb3 b - - 0 1 legal: proof: e4 d5 exd5 h5 g4 a5 gxh5 a4 c3 a3 bxa3 e6 a4 Bc5 a5 Bd4 cxd4 Kd7 Bb5+ Ke7 Bf1 Ke8 Ke2 Ke7 Kf3 Kf6 Kf4 c5 a4 b5 h4 c4 f3 b4 d6 b3 h6 b2 d7 c3 h7 c2 a6 g6 h5 Ne7 a7 Qb6 d8Q Qc6 h6 Qd7 d5 Qc7+ d6 Qc3 d4 Re8 h8R Qc4 d7 Qe2 h7 Qd3 a5 Nc6 a6 Rb8 a8B Qc4 a7 Qc3 d5 Bb7 d6 Ne5 Ba6 Qb3 Ra4 Bd5 Nc3 b1N Nge2 Qb7 Re1 Nd2 Nd4 Ndc4 Re3 Na5 Bd3 Bb3 Ne4+ Kg7 Nf6 Kh6 Be4 Nf5 Qe7 Ng7 d8Q Rc8 d7 Rc3 Qb6 Rd3 d8Q Rg8 Qb5 Rf8 Ne8 Kh5 Nf6+ Kh4 Qbd5 Kh3 Kg5 Kg3 Qb5 Rc3 Qbd3 Kf2 Qd5 Rfc8 Rd8 Rb8 h8Q Rbc8 Rd6 Rf8 Rc6 Rb8 Rcc4 Rg8 Bd2 c1B Nc2 Ba3 Bc1 Bd6 Bf5 Re8 Rf4 Rf8 Q5d4 Re8 Qh6 Rh8 Bh3 Nec6 Bf5 e5 Bc8 e4 Qb4 Ne5 Qa3 Qb8 Qb2 Qb5 Bc6 Qa6 a8Q Qb7 Re1 e3 Be4 e2 Bef5 Qa6 Qae4 Qb6 Rh1 e1B Rh2+ Kg1 Re2 Qb7 Re3 Kf2 Bfd7 Be6 Bb5 Ra3 Bc4 Bd7 Ba2 Be6 Bb1 Bc4 Qh3 Bb3 Qhd7 Bb8 Q7d4 Bc7 Q4c3 Bd6 Qcd2+
Q4QQ1/3rpBQn/Q2N3b/1RR2B2/bqbP1Bk1/2nr1rp1/4Q3/2K2RN1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 b5 f4 c5 h4 g5 a4 c4 f6 b4 a6 g4 h6 b3 a5 g3 d6 Ke6 a7 Kf5 a6 b2 h7 Nd7 h5 Ne5 f7 Nc6 d7 Na5 h6 Qb6 d8R Qc7 Rh5+ Ke6 f5+ Kf6 Bd3 Bb7 Na3 b1B Rc8 Bh1 Qe2 Bd5 Nb5 Qb7 Nd6 Rb8 a8B Nc6 a7 Nb4 Rc5 c3+ Kd1 Qb5 Bf4 c2+ Kc1 Bc4 Bd5 Rb7 a8Q Rd7 Qa6 Bba2 Be6 Nd5 Rb1 Nc3 Rh1 Qb8 Rbb5 Bab3 Bd5 Qe8 B3e4 Bg7 f8Q+ Qf7 Qb8 Ba4 Qba8 Qe8 Bf7 Qb8 Bed5 Qb6 Bg6 Qa5 Bdf7 Qb4 Nf3 Bf8 Rf1 Bg7 Ng1 Bf8 Be5+ Kg5 f6 Bg7 Bf4+ Kh4 Be8 Bf8 f7 Nf6 Rc6 Bg7 Rcc5 Rf8 h8Q Nh7 Qg8 Nd1 Qe5 Kg4 Qee4 Nc3 Qe3 Ng5 h7 Bh6 h8Q Nh7 Qhg7 Rd8 Kd2 c1R Qee4 Re1 Qd3 Re4 Kc1 Re3 Qe2+ Rf3 Bc6 Rd7 Bd5 Rb8 f8Q Rb6 Bdf7 Rc6 Nc8 Re6 Nd6 Re3 Rc8 Rd3 Rc7 Bg5 Rcc5 Bh6 Bf5+
1Q3Qr1/4pBBr/bRQ2R2/4Q1rP/5Rp1/N6b/1nQ1Qbn1/k1K1B1Nq b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 b4 Kf6 c4 Ke5 f4+ Kd4 h4 a5 f6 d5 f5 g5 c6 g4 c5 a4 h6 a3 b6 a2 f7 Nf6 h5 Nbd7 c7 Qe8 c6 Rg8 b5 Ra7 h7 Ra3 h8B Ba6 c8Q Nc5 b7 Na4 b8Q Nb2 b6 Rf3 c7 Qc6 b7 Bg7 Na3 Rf4 Rb1 a1R f8R Ra2 Nc4 Ra5 Na3 Rc5 Bc4 Bh6 Ke1+ Kc3 Bg7 d4 Bf7 Nd5 f6 d3 Qe2 Ne3 Qe8 Rb5 c8Q Rg5 Rh3 Rff5 Rf3 Rf4 Qd6 Rff5 b8Q d2+ Kf2 d1B Ke1 Ba4 Rf4 B4b5 Qd5 Bc4 Qbe5+ Kb3 Kd2 Ka2 Qde4 Qb7 Qcb8 Ng2 Qc2 Qf3 Qd7 Qh3 Qc6 Qh1 Kc3 Bd5 Bd2 Bdc4 Be1 Bd5 Bh8 R5g7 Kd2 Rfg5 Kc1 Rh7 Be6 Bg7 f7 Bf6 Bg7 Bdc4 Qef5 Bd4 Qfe5 Ba7 Re8 Bd5 f8Q Bf2 Bf7 Bdc4 Rd8 Bd5 Rd6 Bdc4 Kd2 Bd5 Rdf6 Bdc4 Rd1 Bd5 Kc1 Ka1 Q2e3 Bdc4 Rdd6 Bf1 Q3e4 Ne3 Qe2 Bh3 Qcc2 Ng2 Rb6 Rg6 Qea4 Rg5 Qac6
1k2B1b1/4p1p1/B7/Q1RQNbr1/BrRbQ1nq/2B1BRB1/5rnP/4N2K b - - 0 1 illegal: No proof kernel forced: wxDB
3QKnB1/Qp5q/2p1Q3/Q2Qrb1n/PR1N2rb/2Rn1Q1B/3BN3/1k3bR1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 g4 h5 d4 e5+ d6 h4 a4 h3 f4 h2 f6 c6 f5 Ra7 d5 Ne7 a6 Be6 g6 Bh6 f7 Rh7 f8Q Bg5 d7 Bh6 Kd6 Bd2 f6 Qb6 d8Q Kd4 g7 e4 g8Q e3 g5 e2 g6 Kd3 g7 Ng6 f7 Qa5 Na3 Nd7 Nc2 Ne7 Nd4 Nb8 Bh3 e1N Rb1 Ng6 Rb4 Nd7 Nge2 Bf5 Rg1 Nf4 Ke7 h1B d6 Rh4 Ke8 Nh5 Qb3+ Bc3 Qd5 Qc7 Bd2 Rg4 Qb8 Ra8 a7 Bg2 Qd8 Rb8 a8Q Bf1 Qa7 Ba1 Qda5 Ra8 Qe7 Nf8 d7 Qh2 Qe6 Qh1 Nf3 Bf6 Nfd4 Bh4 Qed5 Rc8 Qe6 Rc7 Qdf6 Rc8+ d8Q Rc7 Qdd5 Rd7 Qfd8 Rd6 Qg2 Rd5 Qf2 Re5 Qf4 Ng6 f8R Qe4 Rf6 Nf8 Qf7 Qh1 g8B Qh2 Qfd7 Qh1 Qdd5 Qh2 Nb3+ Kc2 Qff3 Kb1 Rh6 Nd3 Rg6 Rg2 Rgg4 Rg3 Rgc4 Rg4 Rc3 Qf4 Qac7 Qh6 Qca5 Qh7 Nbd4+
1R1N4/pnR2K1N/Q4R1r/4Rn2/p1N1nP2/1bkB4/rQB4R/BRq1br2 b - - 0 1 illegal: Other
N1Q1b3/2B1q2Q/Q4QB1/2Nk1R1B/1p5K/q1p4b/1bn1rnQP/QRN1r3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kg3 g5 d4 f5 a4 c5 e4 b5 e6 Kd6 e7 b4 e8Q g4 a6 c4 a5 c3 e5+ Kc7 a7 Kb7 h6 Qd7 a6+ Kc7 h7 f4+ Kh4 g3 d6+ Kc6 d5+ Kc5 e6 g2 e7 f3 Bf4 f2 Nd2 Kd4 Qg6 Bh6 e8B Qf7 d7 Kc5 d8Q Kd4 d6 Qb3 d7 Kd5 Ne2 g1Q Bc7 Bb7 Ne4+ Bd2 Rb1 Nh6 Qg2 Qa3 Nc1 Nc6 Bh5 Ng4 Bd3 f1B Qf6 Rhe8 h8Q Nd4 Qh7 Bc6 d8Q+ Bd7 Qde2 Nf2 Qc8 Nc2 Qe1 Rb8 a8N Re6 a7 Be8 Nc5+ Re4+ Qgg4 Re2 Bdg6 Bh3 Qf1 Re1 Q1a6 Qf1 Qg3 Qe2 Rf1 Qe7 Qgg4 Rb6 Qg3 Rbe6 Qg2+ Ne4 Rf3 Nf2 Qh6 R6e5 Qh7 R5e2 Qb5 Nd1 N1b3 Nd4 Qa5 Qc1 Qa1 Qa3 Qa6 Nc2 Qc8 Be6 Nb6+ Kc6 Qa6 Bc1 Qc8 Bb2 Nc1 Nf2 a8Q+ Kb5 Qaa6+ Kc6 Na8+ Kd5 Qa7 Bg4 Qaa6 Bh3 Rf5#
K1kBNN2/1N2RR2/Q1nQq2q/5r1B/Ppnb1Q2/pNN5/B3n1N1/4rb2 b - - 0 1 illegal: No proof kernel
3RrR2/q1n1N1q1/4b1B1/1R1RB1pQ/1R1RKb2/1P1Q2bN/1B4pk/2r1Q2n b - - 0 1 illegal: Other
1N1K1n1R/1Qr3qb/5k2/rQ1Q1p1Q/Q1b1N1pq/1N4bn/1R2P2B/3RQ2B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 g5 Kd4 a5 Kd5 f5 h4 a4 b4 d6 c4 g4 c6 a3 c5 a2 e6 Bb7 h6 Qa5 h7 Kf6 e7 Qd8 e8Q Qd7 b6 Qd8 h5 Ra5 b5 Ra3 h6 Be7 Nf3 Ra4 Qe1 Bf8 Nd4 Be7 Nd2 Qc7 Bg2 Qd8 Rb1 a1Q Rb2 Ba8 b7 Rc4 c7 Nc6 b8N Qa7 c8Q Ne5+ c6 Nf3 b6 Ng1 b7 Nh3 c7 Ra4 Kc6 d5 Bf3 Ra5 Qcd7 Bd6 c8Q Bg3 N4b3 d4 Qd5 d3 Qee4 Qe7 Qa4 Qf2 Rg1 Qg7 Bh1 Ne7+ Kd7 Qh2 Qcc5 Rc8 h8Q Rc7+ Kd8 Ng6 h7 Nf8 Qcb5 Qf2 Nf3 d2 Ng5 d1B Bf4 Bc2 Bd6 Bd3 Bf4 Bh4 Bh2 Bc4 Rf1 Bg3 Rg1 Nd7 Qe8 Nf8 h8R Be5 Qh5 Qh4 Qg3 Bd6 Rd1 Bf4 Qe1 Bg3 Qe4 Bg8 Qed5 Bh7 Na6 Rc5 b8Q Rc7 Q8b6+ Bc6 Qb7 Be8 Nb8 Bf7 Qde4 Bc4 Qf3 Be5 Qfd5 Bg3 Ne4+
K1Qq1R2/2b1BRB1/BRnk3r/2NPr3/1RQ1Q2q/7b/2p1R1p1/1R1n1N1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kd4 a5 Kc5 g5 b4 c6 d4 a4 e4 g4 h4 g3 h6 a3 d6+ Kd7 h7 a2 b6 f4 h5 f3 e6+ Ke8 b7 f2 h6 Ra4 d5 Qh4 Kb6 c5 e7 Kd7 e8R c4 b5 c3 e5 c2 Qd3 Rd4 Ka7 Nf6 b6 Rg8 h8B Ne4 h7 Rg7 Nf3 Qh5 Ne1 Qg6 Qc4 Nf6 Nd2 Re4 Ba3 Rf7 Bg7 Re3 h8R Ne4 Rb1 a1Q Nd3 Rf6 R1h7 Ng5 Ka8 Nc6 b8R Qd4 b7 Be7 Rhf8 Ne4 Be2 Qf7 Nf1 Bd8 Re6 Bb6 Bb4 Qe8 Nc5+ Kd8 d7 Kc7 d8R Nc3 Rdd6 Nd1 Re7+ Qd7 e6 Re5 Ref7 Qe4 e7 Rh6 e8Q Qh4 Qe6 Qde7 Qg6 Ba5 Qge4 Bh3 Rhh8 Bg2 Rfe8 Bh1 Rhf8 Nd4 Rb6 Nc6 Qcd4 Kd6 Ba6 Qd8 Qc4 Qg4 Rc8 Qgh4 b8Q+ Qc7 Qb7 Qce7 Rb8 Qd8 Nh2 f1B Qc8 Bh3 Nf1 g2 Ba3 Bd2 R6b4 Bf4 R8b6 Rg5 Qf3 Bg3 Re2 Re5 Qfe4 Be1 R4b3 Ba5 R6b4 Bc7 Rb6 Qf4 R3b4 Qfh4 Ra4 Qf2 Nd7+ Qc5 Bc1 Qf2 Bg5 Nb2 Rab4 Qh4 Nc5 Nd1 Be7+
4n1Q1/2R1QQ2/1Q3PbQ/1q1Nk1p1/r1r2q2/1RpB3b/2Bb3R/1nB2QKN b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 Kd6 a4 g5 f4 e5 Kf2 b5 a6 c5 f6 e4 a7 b4 h6 c4 f7 b3 a5 b2 a6 Bd7 h5 Ne7 f5 Bc6 h7 Ba4 f6 Qe8 h6 Nbc6 Rh2 Nb8 Ra3 Ng8 Nc3 b1B Nge2 e3+ Kg1 Bg6 Rb3 Bg7 f8Q+ Qe7 Ng3 e2 Nh1 e1Q Qf7 Qh4 Bd3 Qe6 Qf1 Nd7 Bc2 Rc8 a8B Nc5 a7 Bf8 Bb7 Rc6 a8Q Qe5 Ba6 Ne4 Qb8+ Rc7 Qb6+ Bc6 Bb5 Ne7 Ba6 Rg8 h8Q Nf5 h7 Qhf4 Bb5 Rg7 Qhg8 Nd2 h8Q Nb1 Qh6 Rh7 Ba6 Ng7 Bb5 Be7 Ba6 Ne8 Bb5 Kd7 d6 Rh8 Ba6 Bg2 Nd5 c3 Bad3 Rc4 Qb4 Kc6 d7 Bd6 d8R Bh3 Rc8+ Bc7 Qb7+ Kd6 Qb5 Bb8 Rc7 Qef5 Qa5 Qd7 Qb6+ Qc6 Qhg7 Rh4 Qh6 Ra4 Nb4 Ba7 d5 Ke5 d6 Qb5 d7 Bb8 d8Q Ba7 Qbf2 Be3 Nd5 Bd2 Qb6 Qf5 Rf2 Rhc4 Rh2 Qf4 Qde7+
2k1b3/N1B1b1QN/5p1Q/2P3Rr/B2QNB2/K1p1Qnn1/1Rr1q1Qq/3Q1b2 b - - 0 1 illegal: No proof kernel
1N1Bk3/2q2n2/K2RpQ2/2N1b2R/p1Br2B1/q1r1QN1R/4P1NN/b1r3Nn b - - 0 1 legal: proof: h4 d5 a4 b5 axb5 g5 g4 d4 f4 d3 h5 Qd7 fxg5 Qd4 cxd3 Qd8 d4 Bf5 d5 Bg6 hxg6 Qd6 Nf3 Qd7 Ng1 Qd8 d4 c5 Kd2 h5 Kd3 f5 Kc4 a5 b4 f4 b6 a4 Kb5 f3 b7 h4 g7 f2 d6 c4 d7+ Kf7 d5 h3 d6 c3 g6+ Kf6 g5+ Ke6 Nd2 h2 Ndf3 c2 Qd2 Qc8 d8R Rh5 d7 Nf6 g8Q+ Kf5 g7 Kg6 Qf7+ Kf5 g8B Bh6 g6 Rh3 g7 Be3 Ra3 Bf4 Qe3 Na6 b8N Nc5 Na6 Nd3 Nc5 Qc7 Bd2 Rc8 Ka6 c1B b5 Be5 b6 Bcb2 b7 Ba1 b8N Rh4 Ba5 Rd4 Bg2 f1R Bh3+ Rg4 Qf8 Kg6 Bc4 Rc1 g8N Nf2 Nh6 Rd4 Ng4 Ng8 Rd3 Nh6 Qf6+ Kh5 Rh8 Rc3 d8N e6 Ndb7 Rc1 Nd6 Rc3 Rd8 Nf7 Nf5 Rc1 Rd6 Rc3 Qd8 Kg6 N5h4+ Kg7 Qf6+ Kf8 Ng2 Ke8 Qef4 Qe7 Bd8 Qc7 N4e3 Rc1 Nf1 Rc3 Qe3 Rc1 Bg4 Rc3 Nh3 Rc1 Rg1 h1Q N1h2 Rc3 Rb1 Qc1 Nhg1 Nh1 Rb5 Qa3 Nb3 Bg3 Rh5 Be5 Nc5 Qb2 Nfe1 Nh6 Qef3 Rc1 Ncd7 Nf7 Bd5 Qa2 Qf2 Qc3 Rdh3 Rcc4 Qe3 Qaa3 Nef3 Qa5+ Kb7 Q5c5 Ka6 Qc7 Nc5 R4c3 Bc4
2R3R1/N3bqQ1/1Pnq2bK/4QBRR/qBrk1B1N/pp1r2n1/4R1R1/7N b - - 0 1 illegal: No possible last move, all moves rejected
n2Q2r1/q2P1Bk1/1RRNR3/1r1pb1N1/b1p4K/nRB1R1B1/4qnQ1/NR6 b - - 0 1 illegal: No proof kernel
Bnr1nRBk/qNP2K2/5N2/1R4R1/1p1R1Np1/r1b2b1Q/3B1qR1/4Qb1R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 d5 Kd4 b5 Ke5 g5 f4 Kg7 a4 b4 c4 g4 h4 e6 f6+ Kh7 f5 d4 c6 d3 a6 d2 c7 Be7 c5 Nh6 a7 Qg8 a5 Bd8 f7 Qf8 c6 Bd7 c8N Qg7+ f6 Be8 f8R Qg6 c7 Bc6 a6 Bg2 f7 Qg8 Ra2 Bd5 Nd6 Nf5 h6 Qg5 h5 Bb7 Nc3 Bc8 Bc4 Qg6 Nce4 Bb7 Nh3 Rg8 Qe1 d1B Nf6+ Kh8 h7 Bd5 Bd2 B5f3 Nb7 Ng7 Nf4 Be7 Rd8 Bde2 f8R Bc5 Rd4 Qc2 Ra5 Bd3 Rb5 Bf1 Rg1 Nf5 Rg2 Qa4 Ba2 Nd6 Bd5 Kg7 h8R Ne8 Rh6 Qa2 Rg6+ Kh8 h6 Qa5 h7 Qb6 Rg5 Qa5 Rd3 Be3 Rd4 Qa3 Bc1 Bd2 Bc4 Bc3 Bd2 Ng7 Kd6 e5 Ke7 e4 Kf7 e3 Bb3 e2 Ba2 Nc6 Bb3 Rc8 a8Q Ne8 a7 Qa2 Qb8 Qa6 a8B Qa7 Qh4 e1Q Qh3 Qf2 Bc4 Qc5 Qa7 Nb8 Qa1 Qb6 Qe1 Qa7 Qa1 Qa3 Qg3 Nd6+ Ke7 Rd8 Re8 Nd7 Qe1 Rf8 Bg8 Qa2 Rgd5 Kg7 h8R Rb8 Rh1 Qa5 Nh7 Kh8 Qh3 Rf6 Rd3 Qaa7 Re5 Rc8 Rd4 Nb8 Rf8 Ne8 Rg5 Ra6 Kf7 Ra3 Nf6+
b1Q2rq1/1Rp2R2/1NB1P3/4B1nB/2nB1k2/2Q1qbp1/KbB2BRQ/2rN4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 a4 b5 h4 f5 d4 g5 Kd2 g4 Kc3 g3 Kb2 b4 a6 f4 e6+ Kd6 a7 b3 h6 f3 h5 f2 e7 Rh7 e8B Bg4 e5+ Ke7 a5 Qd7 a6 Rf7 d6+ Ke6 h7 Kf5 h8Q Qa4 d5 Qc6 e6 Qc4 h6 Rg7 h7 Ne7 d7 Bh5 d8Q Rf7 d6 Qb5 d7 Be2 Qc2+ Qd3 Nh3 Qe4 Be3 Bg7+ Nc3 Nec6 Nf4 Nb4 Ra2 Bd4 Nd5 N4c6 Nb6 Re7 Qc8 Kg4 d8B Bf3 Bd3 f1B Qh2 B1g2 Bc2 Ne5 Rb1 Rd7 Bf2 Nbc6 Bh5+ Kf4 Bf6 Na5 Rf1 Rb8 a8R Nf7 Ra7 Ng5 Rb7 Qe3 a7 Nc4+ Ka1 Bh1 a8B b2+ Kb1 Rd8 Nd1 Rf8 Qg7 Bc3 h8B Be5 Rba7 Bc3 Bc6 Ra8 Rb7 Ra5 Ra4 Rc5 Ka2 Bhg2 Kb3 Bh1 Ra2 b1Q+ Rb2 Qbc1 Ka2 Be5 Rg1 Qcd2 Rg2 Qd8 Rb3 Bd4 Rd3 Bb2 Rd7 Qe8 Re7 Qg6 Rf7 Qh7 Qg6 Qg8 Qd3 Rd5 Qc3 Rd2 Bf5 Rc2 Bd4 Rc1 Bhf6 Qe4 Bfg6 Qe3 Bc2 Qg7 Rg1 Ne5 Be8 Be2 Rb8 Ba8 Bc6 Bf3 Rb7 Nc4 Rg2 Qg8 Bfe5#
NK6/1Np2Qr1/k2rp2b/n2NqnrB/2N5/P1Rq3R/3BNBNQ/Q4b2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 g5 Ke4 b5 f4 g4 d4 b4 h4 b3 d6 Kc6 d7 Kb7 Kd5 g3 h6 g2 a3 b2 h5 Ka7 a6 Bg7 f6 Rh7 f7 Be5 f8Q Rg7 h7 Kb6 h8N Bd6 h6 Rf7 h7 Ka5 f5 Nh6 f6 Ng8 a7 Rg7 f7 Qe8 d8B Bh3 Be2 Bg4 Nd2 b1R Nc4+ Kb5 Rh3 Bc8 Ng6 Na6 h8Q Qd7 Nf4 Nc5 Bd2 Rb3 Rc1 Nh6 Bh5 Rc3 Nge2 g1Q Ng2 Re3 Rc3 Qg4 Qa1 Ka6 Kc6 e6 d5 Qe4 Bh4 Qh2 Bf2 Nb3 Qfg8 Bf4 f8N Qe5 d6 Reg3 d7 R3g5 d8N Nf5 Nd7 Qg3 Nf6 Qd3 Nb7 Rb8 Nd5 Na5+ Kc5 Bd7 a8N Rd8 Qf7 Bb5 Qh7 Rd6 Qh6 Rg3 Qh8 Bh6 Qh7 R7g5 Qh8 Qee4 Qe5 R3g4 Qh2 Qe5 Ng3 Rd8 Ncb6 Qc2 Nd6 Bf1 Ne2 Rg7 Nbc4 Nb7+ Kc6 Qd3 Bg6 Rg5 Bh5 Rdg8 Kd7 Na5 Nb7 Rc8 Ne1 Re8 Ng2 Re7+ Kc8 Rd7 Kb8 Rd6 Bh4 R5g6 Bhe1 Rg5 Bf2
QQQ1BNK1/1nNnq2B/8/RbkRb1BQ/p2r4/3n1RQ1/1Q1pP2r/6n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 g5 Kd4 f5 Kd5 a5 c4 g4 h4 d6 b4 f4 e6 f3 h6 g3 b6 f2 b7 g2 h5 Na6 b8R Bg7 c6 Bb2 c7 Bf6 h7 Nc5 b5 Bg5 h6 Nb7 b6 Bd7 c8Q Ra6 c5 Ra7 c6 Ra8 c7 Be8 Nh3 g1N Bg2 f1N Qd3 Nc5 b7 Bf6 Nf4 Bb2 Nc3 Ba3 Ng6+ Kf6 e7 Ra7 Be4 Nf3 Rh3 N1d2 Nb5 Ng1 Nf8 Bb2 Qg3 Nc4 Bg5+ Kf7 Ra8 a4 b8Q Na5 Rd1 Nd3 Qcb7 Ra6 c8Q Be5 Nc7 Bb5 Ra7 Rc6 Q7a8 Nb7 Ra5 Rc4 Bf5 Bf6 e8B+ Ke7 Qf2 Rb4 Rf3 Rh4 Qg3 Rh2 Bd2 Bg7 Bg5+ Nf6+ Kd4 Rg8 h8Q d5 h7 Qd7 Qh4 Kd6 Qg3+ Ne5 Be4 Qe7 Rd2 Nd7 Rdd3 Bf6 Qg7 Qf7 h8Q Qe7 Qh5 Rh8 Bh7 Rg8 Ke3 d4+ Kf4 Kc5 Kf5 Rh8 Rd1 Nd3 Kg6 Be5 Kh6 Rg8 Qf6 Rg7 Rd2 Rf7 Qg7 Rf4 Qf6 Qd6 Kg7 Qe7+ Kh8 Nb2 Kg8 d3 Qff7 Rd4 Qb3 Nd1 Qb2 Nf2 Rd1 d2 Rf1 Nb6 Rf6 Nd7 Rd6 Nd3 Rff6 Rb4 Rf3 Rd4 Rd5+
KQB1rR2/N4nR1/4B1b1/BB3P2/Bpq1n2p/Q2b4/1N3b1r/Q1bBNk2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 f6 Kf7 Ke2 Ke6 Kf3 Kf5 c4 d5 g4+ Ke5 a4 b5 f7 h5 c6 e6 c7 h4 a6 d4 c5 d3 a5 Kd4 g6 e5 c6 d2 g5 Ra7 g7 Be6 c8N Bb3 c7 Nf6 g8Q Bb4 f8Q Bc2 g6 Rh7 g7 Rb7 a7 Nd5 a8B Ra7 a6 Bb3 Nc3 Nb6 Na4 Qd6 Bc6 Ra8 a7 Na6 Bd3 Rb8 a8B Nd7 Na7 Qc5 Qe7 Rb7 Qb8 Rh8 g8B Ba3 c8B Bc2 Be6 Re8 Rh3 Bb1 Rg3 e4+ Kf4 e3 Rg7 e2 Bc2 Qd5 Nf3+ Kc4 Qg1 d1B Bd2 e1B Ba5 Bb2 Qa3 Ne5 Bc6d7 Rc7 Bac6 b4 Bb3+ Kd3 Qh1 Bd4 Nb2+ Ke2 Bca4 Rc2 Bdb5+ Qc4 Ke4 Bd2 Qg1 Ng4 Qh1 Nh6 Qg1 B4e3+ Ke5 Be1 Kd6 Nc5 Kc7 Rd2 Kb6 Bg6 Rc1 Ne4+ Kb7 Bc2 Ka8 Bd3 Qh1 Qc7 Rc5 Rc2 Rf5 Qc4 Rf8 Nf7 Qg1 B1d2 Qga1 Bc1 Ne1 Kf1 f4 Rh2 f5 Bf2 Bd1
2kBN1N1/r2nNb1r/2NnB1p1/N4QRB/qb2n2Q/2RQ1P2/7p/1nK3N1 b - - 0 1 illegal: No proof kernel
n1B2RBQ/b3n3/4pBk1/K2N1R2/2p1rRP1/QN1Bnr1Q/5B1q/2B3nb b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 c5 Kc3 b5 f4 h5 g4 h4 a4 h3 Ra3 e6 g6+ Kf6 g7 h2 d6 c4 Kb4 Rh6 d5 Rh5 a6 Bd7 a5 Be8 a7 Rh6 a6 Rh5 Qb3 Rh6 Nh3 Bg6 Nd2 Rh5 Ra5 Nh6 g8B Kg7 f6+ Kh8 f5 Qe8 f7 Kg7 Nf4 Nd7 Qg3 Qc8 Qh3 Qb8 Be2 Rg5 Rf1 Nb6 Rf3 Qc7 Bf1 Rd8 a8B Be7 a7 Rf8 Qg2 h1N Bb7 Ng3 a8Q Bh7 Bc8 Ne2 Qa6 Bf6 d7 Ng1 d8B Na8 d6 Bd4 d7 Ba7 Bd3 Qb8 Bb6 Kf6 Ne2 Qh2 d8B+ Kg7 Qh3 Bg6 Bh7 Ng8 Nc3 Rh5 Bg5 Ne7 Bg8 Bh7 Bh4 Kh6 f6 Be4 Rf2 Bh1 Rf3 Re5 Bbf2 Re4 Qd6 Rd8 Qc5 Rd5 Qd4 Kg6 f8Q Nf5 f7 Ne3 Qfc5 Rf5 f8R Rf7 Qh8 Rf5 Ka3 b4+ Ka4 b3 Qa3 b2 Bf6 b1N Nb3 Rff4 Rd5 Rf5 Ka5 Rff4 Na2 Nc3 Rf5 Ncd5 Nb4 Ne7 Nd5 Re5 Be1 Ree4 Rf1 Rf3 Rf2 Rg3 R2f4 Rf3 Bf2
n1BB1qn1/3B1Npr/bRK5/b1NN4/1b3R2/1R1b3k/RQ2r1pP/R1R2Q2 b - - 0 1 illegal: Other
2RBR3/rn1Qpb1Q/PR2BbRK/8/2q1r3/1Rb2Nb1/1Q2BpR1/N2k3n b - - 0 1 illegal: No proof kernel
3Bk1N1/1BRB1R2/K1b1BB1p/1N6/1Q1B1qqP/2nn1N1Q/R3r2p/1q3nb1 b - - 0 1 illegal: Other
R1QR1bKR/2nR1n2/1BB1r2p/1QR5/b1R1N1B1/1b4qP/p1N1Nk2/1n1q4 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 f5 fxe5 b5 a4 a5 axb5 f4 g4 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Qg5 Nh3 Qe7 Ng1 Qd8 Kf2 Kf7 Kf3 g5 Ke4 c5 d4 c4 b4 h6 d6 c3 Kd5 f3 e4 a4 f6 Kg6 h3 Kh5 e6 Kh4 d7 Kg3 e5 g4 b6 f2 b7 a3 f7 c2 e7 a2 Ke6 Qe8 b5 Qd8 e8B Qh4 b6 Nf6 d5 Nh7 d6 Qd8 Qd5 Qg5 Na3 Qf4 Ne2+ Kh4 Be3 c1N Nc2 g3 Qb5 Be7 f8Q Qa4 Kf7 g2 d8R g1Q d7 Qgg4 e6 Bc5 e7 Na6 b8R Qa3 b7 Nb3 Rc1 Nc7 Ra8 Nd2 b8R Nb1 Rb7 Bd6 Bb6 Qag3 Bg2 f1B Bf3 Qa4 Bg4 Ng5+ Kg7 Rh7+ Kg8 Nf7 Rbb8 Bg2 Rhf1 Bgb7 Rf5 Bc6 Rc5 Bd5 Rb7 Bb3 Rba7 Ba6 Rdb8 Bc8 d8R Bd7 Rbc8 Bc6 Bd7 Qd4 e8N Qd1 Nf6 Be7 Ne4 Bd6 Qb4 Bca4 Bc6 Be7 Qe8 Bf8 Qc4 Nd6 Qee6 Re7 Qb5 Nf7 Rcb8 Re8 Qc8 Re6 Rab7 Nd5 Re7 Nc7 Red7 Qdg1 Nb4 Bd5 Re8 Qe5 Qca6 Bdb3 Rbd8 Qd1 Qc8 Bg7 Kh7 Qc3 Rh8 Bf8 Kg8 Qe5 R1c4 Qed6 Nf2 Q6d3 Nc3 Kg3 Nfe4+ Kg2 Ne2 Qg3 Nc2 Kf1 Nd2+ Kf2 Ne4+
N1Rq1qQR/1r5r/1Q2pk2/K1Rb2BR/1RQnq2N/2BrP3/1p3b2/2R2B2 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h4 a3 bxa3 Nh6 a4 Ng8 a5 Bg7 Na3 Bh6 Nb1 Bf8 g4 Ra6 g6 Be6 g5 Nc6 h5 Ne5 g7 Ng6 hxg6 Ra8 Ba3 Bd7 Bc1 Bc8 a4 f5 d4 b5 Kd2 c5 Kc3 h5 a6 f4 d6 c4 Kb4 f3 e3 f2 a7 c3 d5 c2 a5 h4 a6 e6 Nf3 h3 Qe2 h2 Nc3 Rh5 Bb2 c1R Qc4 Ne7 g8R Qd7 g7 Kf7 g6+ Kf6 Nh4 Qd8 d7 Rh8 d6 Ke5 Nd5+ Rc3 Rc1 Qc7 d8Q Qb6 d7 Bb7 Nc7 Rh7 Rh8 Rb8 a8R Bd5 g8R Kf6 g7 Rb7 a7 Qd4 Ba1 Rd3 Ka5 b4 Bc3 b3 Rc8 b2 a8Q Be4 Qb8 Bd5 Qe8 Nf5 d8B+ Be7 Na8 Bf3 Rc5 Bd5 Bd2 Qe4 Bc3+ Nd4 Qc6 Qg2 Qb6 Qe4 Bc7 Bd6 Rc8 Be5 g8R Bg3 Rg1 h1Q Bf4 Qhf3 Rg5 Qd1 Rh5 Qd2 Ng6 Bh4 Rg4 Bg3 Nh4 Qd1 Be2 f1Q Bh6 Qff3 Bf1 Bf2 Qg3 Qg6 Re4 Qe8 Qg8 Qf8 Ree5 Qe4 Rb5 Qd8 Rb4 Qdg4 Bf4 Qg7 Reg5 Qgf8 Re5 Bc6 Rc5 Bd5 Bg5+
3R1q2/1N2R2B/KB3p2/bn1n3p/R1NB1PbB/3QB1n1/3r2Bn/kNQ3q1 b - - 0 1 illegal: No possible last move
1BNQ1R1B/R1pB1r2/r5q1/b4RrB/Bn1N1Q2/2Pk1q1B/p7/n1K1Nr2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Be7 g4 Bb7 h5 Be4 Ra5 Bd3 Ra1 Bg6 hxg6 Bf8 Kd2 Ke7 b4 Ke6 e4 h5 g7 f5 b6 a5 g6 d5 b5 f4 g5 d4 b7 h4 b6 h3 Ne2 f3 Bb2 h2 Bh3+ Ke7 e6 Kd6 e7 Ke5 e8B a4 Qf1 a3 Ba4 f2 Kc1 Be7 Nd2 Bb4 Nf3+ Kd6 e5+ Kc5 e6 Kc4 e7 d3 e8B Ra7 Bed7 Qf6 Ne1 Rh6 Nd4 Ne7 g8R Rh7 g7 Qg6 Rf8 Ra6 g8N Nd5 Ne7 Rf7 Nc8 Nc6 b8B Ba5 b7 Ndb4 Rg1 h1Q Ra2 Qh7 g6 Qf3 g7 Qhh5 g8B Qg6 Nf5 Nd4 Rg5 Ne6 Bh8 Nc5 c3 Nb3+ Kb1 Na1 Kc1 Qe4 Nd4 Qf3 Qg2 f1R Qg4 Rg1 Qf4 Rg3 Rf5 Rg5 Rb2 a2 Bh7 Qe6 Bg6 Qb6 Bh5 Qg6 Rb3 d2+ Kb2 d1R Ra3 Rd2+ Kc1 Rh2 Ba7 Rhg2 b8Q Rg1 Qa8 Rh1 Bb8 Rf1 Rb3 Nc6 Rb7 Nb4 Ra7 Qe6 Qae4 Qg6 Qe8 Rf2 Ng2 Kd3 Qd8 Rf1+ Ne1+
k2bQ3/3Q2KQ/p2RrnR1/3pQ2r/P1NB1Qq1/3b1Q1n/RB3Nrp/5B2 b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 g5 exf5 e5 h4 e4 hxg5 e3 dxe3 Kf7 e4 Ke7 e5 Ke8 Ke2 d5 Kf3 Kd7 Kg4 Kc6 Kh5 b5 c4 Kb7 g4 h6 Kg6 b4 f4 h5 a4 a6 e6 b3 c6+ Ka7 c7 h4 f6 h3 c5 b2 f7 Rh4 f5 Nd7 e7 Rh7 e8Q Nb8 f6 Rh8 c6 Bd7 c8Q Ba3 f8B Be7 c7 Rh5 f7 Bf5+ Kg7 Rh4 g6 Rh5 g5 Nc6 Nd2 b1R Qf3 Rb3 Qcd7 Rb6 c8Q+ Rb7 Bb2 Na5 Qcc3 Bd6 Ra2 Nf6 Qce5 Nc6 Nc4 Bc7 Bc5+ Rb6 f8Q Ne7 Bcd4 Bd3 Rh2 Rc8 Re2 h2 Nh3 Kb8 Nf2 Ka8 Re4 Re6 Re2 Ng4 Q8f4 Ng8 Rc2 Ba5 Rc3 Rc7 Rb3 Rc8 Rb6 N8f6 Rd6 Qb6 Kf8 Qa7 g7 Bd8 g8R Qb7 g6 Qb4 g7 Rc7 Na5 Rc2 Nc4 Rd2 Rh8 Re2 g8Q Rc2 Kg7 Rd2 Nd1 Rg2 Rh6 Nf2+ Rg6 Nh3 Nf2 Qa3 Nd2 Qb4 Qh7 Qc4 Ba7 Qe4 Nc4 Qf5 Bb6 Qg4 B6d4
1N2B1R1/n1K4p/6p1/2p1B3/1rRBkPBb/B2N2rN/3n1QB1/Q1b2bQq b - - 0 1 illegal: No possible last move
R5b1/k1n1P3/BrRK1n2/1Br4R/2pBRR2/2Q3p1/1N1b3p/R1qQQ1nN b - - 0 1 illegal: No proof kernel
r1QnRb2/p3R1B1/qQ2p1K1/1Nq1R1Q1/2P2p2/QB3N2/2k1r1Q1/Q3nB1b b - - 0 1 illegal: No proof kernel
2q1r1N1/p3p1pN/kn5b/1NQ2Nn1/PN6/KB5N/R1qBQ1r1/2Bb1Q1R b - - 0 1 illegal: No proof kernel forced: wxDB
4K1Q1/NR1pB2p/R2B2Bb/BQ6/1N1q3p/1rB2k1B/3PrRq1/1q1nQ2b b - - 0 1 illegal: Other
KBN2N2/1RB1Q2r/6Np/p1N1N3/1bp3bN/1B3n2/Pr1r1Q2/1kQ1Rqr1 b - - 0 1 illegal: No possible last move, all moves rejected
BRq1kq2/1Q1r3B/R2r2pB/8/3r2NP/2Qq1r1N/R2p2BB/K1R1R3 b - - 0 1 legal: proof: a4 b5 axb5 c5 d4 e5 f3 d5 e3 e4 Ra3 Be7 Ra2 Bf6 dxc5 d4 Ra6 d3 Ra1 Bd4 exd4 e3 h4 g6 h5 Nc6 h6 Bf5 Rh2 Be4 fxe4 Nce7 Nd2 Nf5 Nb1 Ng7 Rh1 Ne6 g3 Ne7 Rh2 Ng7 hxg7 h5 Rf2 h4 Rh2 h3 Rh1 Nf5 Ra5 Rb8 Ra1 Nh4 gxh4 Ra8 g8B a5 b4 f5 c4 f4 b6 a4 b5 e2 Kd2 e1R Kc3 f3 Kb2 h2 e5 f2 c6 Re3 b7 Qd7 b8B Rg3 c7 Qd6 c8Q+ Qd8 d5 Rf3 b6 Ra7 b7 Rf7 e6 Re7 c5 Rc7 e7 Rh5 d6 Rh7 c6 Rh5 Bh7 Rd5 d7+ Kf7 e8B+ Kf8 Nh3 Ra6 Qf3+ Rf5 Bh6+ Ke7 Ra2 a3+ Ka1 d2 Bg2 f1Q Qc3 Qd1 Re1+ Qe2 Bf7 h1Q Bfd5 Qe8 d8R Qf8 Rd6 Rd7 c7 Ra4 Ra6 Rd4 Bde4 R7d6 Bd5 Rf3 Qd7+ Kf6 c8R Qd3 Bc7 Qg1 b8R Qge3 Qb5 Ke7 Ba8 Qe6 Qb7 Rd7 Bh2 Rd6 Rb2 a2 Na3 Kf7 Rc4 Qee8 Nc2 Qc8 Ne3 Ke8 Rc2 Rd4 Rcc1 R4d6 Rca4 Rd4 Kb2 a1R Ra3 Rb1+ Ka2 Rb2+ Ka1 Rb6 Ra2 Rbd6 Ng4+
qk2bQK1/5B2/rq2Br2/3nr1BP/Q1nN3R/R1NQ2BQ/B7/Q5nr b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Bb6 Bh3 Ba6 Bf1 Ba5 bxa5 Bc8 Kf2 Kd7 Ke3 f5 Kd4 g5 e4 a3 h4 g4 a6 a2 e6+ Kd6 e7 c6 e8Q Kc7 Ke5 g3 d4 c5 h6 c4 d6+ Kb6 h7 Ka7 d7 g2 Ke6 c3 Kf7 f4 d5 c2 d6 f3 e5 f2 e6 Nc6 e7 Kb8 a7+ Kb7 b6 Nb4 Nc3 Na6 Bc4 f1Q+ Nf3 g1N Bg5 c1R Be6 Qg2 Nd4 Qc7 d8Q Nc5 d7 Ka6 b7 Ne4 b8B Qb6 Bg3 Kb7 h5 Rb8 Qb3 Nd2 Rh4 Nc4 a8B+ Ka7 Bad5 Nf6 Kg7 Rf8 h8Q Bb7 Qc8 Bc6 d8Q Qe4 Qg6 Be8 Qgh7 Qh1 Qd3 Ra8 Qd6 Re1 Qcc6 Re5 Qca4+ Na5 Bc4 Nd5 Kh7 Rf6 Kg8 Qg2 Qda3 Kb7 Qh6 Ra6 Qf8 Kb8 Qbd1 Qe2 Qf1 Qeb2 Qh3 Q2b4 Bb3 Nc4 Qc1 Qd8 Qcd1 Qbb6 Q1b1 Bb5 e8B Qc8 B8f7 Be8 Qe1 Qcc6 Rd1 a1R Ba2 Qc8 Rb1 Qcb7 Rb3 Qa8 Qeb1 Ne2 Qb2 Rh1 Qa1 Ng1 Ra3
1qkq2N1/5RQ1/R1P1bQ1Q/nNK1nR2/2bQ1n2/6Rb/QR3B2/2n2Br1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 gxf5 g4 f4 Bb7 h4 Be4 f6 Bg7 f5 Bb7 e4 Bh6 e5 Bg5 hxg5 Ra6 Ke2 Bc8 Kd2 Qc7 Ke1 Kd8 f7 Rf6 exf6 Qb6 Bc4 Kc7 Bd3 Kb7 Be2 Qd8 Bf1 Kc7 Kf2 h5 Ke3 e5 f8Q d5 c4 a4 b4 e4 Kd4 a3 f7 h4 c6 g3 c5 g2 g6 a2 f6 h3 g7 h2 Nh3 g1N Ng5 e3 Nc3 e2 Nh7 e1N Be3 Qe7 Bf2 Qe8 b6+ Kd8 b7 Ng2 c7+ Kd7 b5 Qd8 b6 Nh3 Nb5 Ngf4 Rg1 h1B Rg3 Ne7 g8Q Bg2 Qfg7 Ng1 f8R Bh3 f7 Neg6 Qd3 Ne5 Nf6+ Kc6 Qh6 Bce6 Qgg7 Rh7 Ng8 Kd7 Qgf6 Rg7 c8R Rg6 Rc6 Rg4 Rb1 a1Q+ Rb2 Qb1 Qb3 Rg5 Qa2 Rg6 Rg5 Rg7 Rf5 Rg4 Rb3 Rg7 Rg3 Nge2+ Ke3 Nc1 Kd4 Na6 b8R Nb4 b7 Rg6 Rb3 Rg1 Rg3 Qb3 Ra6 Qb2+ Ke3 d4+ Ke4 d3 Ke3 Qb3 Kd4 d2 Qfg7 d1B Qhf6 Bh5 Qgh6 Bg6 Qfg7 Bc4 c6+ Ke6+ Nd6 Nc2+ Kc5 Na1 Rc8 Qb2 b8Q Qb1 Qbb2 Nab3+ Kb4 Na5 Kc5 Ng4 Rca8 Ne5 Qd4 Qb7 Rb8 Qa7+ Rbb6 Qab8 Nf6 Bh7 Rb2 Bg8 Nb5 Qe8 Ra3 Ke7 Rg3 Qd7 Rc8 Qe8 Rc7+ Qd7 Rb7 Kd8 Rba7 Kc8 f8Q+ Qe8 Qfe7 Bge6 Ng8 Qd7 Qef6 Qd8 Rf7
3rR1b1/bBP1rbq1/r7/1Q1B2B1/1BK3NQ/Nr1NB3/1b3R2/3k1NbN b - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 f5 f4 b5 a4 g4 axb5 Nh6 e4 Qc7 exf5 Kd8 f6 Ng8 f7 Nf6 f5 Ne4 g3 Ng5 hxg5 Nc6 f6 Nd4 Bg2 Ne6 Bh3 Nf4 gxf4 g3 f5 Qb8 Bf1 Kc7 Rh3 Ba6 Rh4 Qd8 Rh1 Bc8 Ke2 a5 Kd3 e5 c4 d5 b4 h5 b6+ Kc6 b5+ Kb7 c6+ Kb8 b7 Ka7 b8B+ Kb6 c7 Kc5 g6 Kb4 c5 h4 c6 h3 b6 d4 g7 a4 g8B h2 b7 a3 Ba7 g2 b8Q+ Bb7 c8N a2 c7 Qd5 Qg4 Kb3 Ne7 Bg7 f8N Rh6 f7 Bh8 f6 Rh4 Nh7 Qd6 f8B+ Qe6 f7 Qh6 Nf3 g1B Bg2 Qg7 Na3 Rh3 Nf6 Rg3 Bb6 Bd5 Nf5 Ra6 Bg5 Rh3 Rf1 a1B Bb4 Bb2 f8N Bf7 N8d7 e4+ Ke2 e3 Kd3 e2 Ne5 e1R Qh4 Re4 Rf2 Rg3 Nfg4 Re3+ Kd2 d3 B6c5 Re4 Bce3 Bd4 Qb7 Ba7 Qb5 Rh3 Ng3 Kb2 Kd1+ d2 Ke2 d1R Nd2 Kc1 Ndf1+ Rd2+ Kf3 Kd1 Nd3 Re5 Kf4 Re7 Bb7 Bh5 Be6 Bf7 Ke4 Bg8 Kd5 Bf7 Kc4 Bg8 Ne1 Rd8 Nf5 Rg3 Bed5 Rf3 N5g3 Bf7 Bec5 Rb3 Bd4 Qf8 Bde3 Bb2 Nd3 Qg7 Rf5 Bf2 Rg1 h1B Rf6 Be4 Nh1 Bh7 Rg3 Bg1 Rf2 Bhg8 Rgf3 Bh5 Rf8 Bhf7 Re8
2N1bk2/K1N2Pn1/1p1R3q/2QQN2B/1N2Q3/1bB1r2q/1bQ1R1N1/1Q3rn1 b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 d5 cxd5 c5 bxa5 g4 d4 g3 dxc5 Nd7 hxg3 Kf7 g4 Ke8 g5 Nb8 Ke2 h5 Ke3 e5 a4 e4 Kd4 e3 f4 h4 g4 e2 c6 e1Q c7 h3 f6 h2 f5 Qde7 g6 Rh5 f7+ Kd7 g5 Ra6 g7 Rh3 d6 Qg3 Kc5 Qe6 g6 Qe7 f6 Qg4 Be2 Qge6 Nf3 Qb3 Ne5+ Ke6 Re1 h1B Bh5 Rf3 Na3 Qd3 Re2 Rf1 Nc2 Bd5 Ne3 Ra7 Kb6 Bd7 c8N Rf3 a6 Qc2 a5 Rg3 Bb2 Rg5 Ng2 Bc4 Bc3 Bd5 Qb1 Ba4 d7 Nh6 g8Q Qf5 g7 Nc6 Qh7 Bdb3 g8Q Qh3 Qhc2 Bg7 f8Q+ Qf7 Qa3 Rg3 Qc5 Nd4 Qe8+ Qe7 f7 Re3 d8N+ Kf6 Ndc6 Nhf5 Qd8 Nf3 Nb4 Ng1 Qdd5 Be8 Ra2 Ra8 a7 Qf8 a6 Bh8 Qde4 Kg7 Rd2 Rb8 a8Q Qd6+ Ka7 Qh6 Rd6 Kf8 Rb2 Ng7 Ra2 b6 Qad5 Rf3 Qcc1 Rf6 Re2 Rf1 Qcc2 Rb7+ Ka8 Re7 a7 Re6 Kb8 Rg6 a8N Rg3 Ka7 Re3 Qec4 Nf5 Nc7 Bf6 Q4e4 Ng7 Ned3 Be5 Ba1 Bb2 Ne5 Ba3 Bd4 Bb2 Bc3
nk1RqB2/6N1/3R4/pQR3BN/1B1RQ3/r3n1RB/2Bb2PK/1b1qb1n1 b - - 0 1 illegal: No possible last move
1RRk1KNb/3NR3/P3bQ1R/1qN1n1q1/3Nb2q/2Q2p2/3q3R/N1BB3n b - - 0 1 illegal: No possible last move, all moves rejected
n6r/q1P1B1nk/1pqB1B1p/N1r2RBb/Q4K2/2NR1N2/3NQ1N1/4b2B b - - 0 1 legal: proof: c4 a5 e4 f5 exf5 g5 b4 d5 cxd5 c5 bxa5 g4 d4 g3 dxc5 Nd7 hxg3 Kf7 g4 Ke8 g5 Nb8 Kd2 Kf7 Ke3 Kg7 f4 e5 g4 b6 a4 h6 c6 e4 d6 Kh7 a6 Nf6 a7 Kg8 g6 Bg7 g5 Nh7 a5 Bc3 d7 Ba6 f6 Bb2 f5 Ba3 f7+ Kg7 f8B+ Kg8 g7 Bb7 f6 Qe8 d8B Qd7 a6 Qd3+ Kf4 e3 Qe2 Bb4 Bg2 Nd7 Bfe7 Qd2 Nc3 Qd5 Ra3 Qf7 Nf3 Nb8 Rf1 Ba5 Bh1 Nf8 Bd6 Qc7 f7+ Kh7 g8N Qe7 g6+ Kg7 Nf6 Qd7 Nfe4 Nh7 f8B+ Kg8 g7 Qc7 Bfe7 Bb4 Ned2 Nf8 Rf2 Kh7 g8N Qc8 Bf6 Qc7 Ne7 Bc8 Rb3 Bg4 Ba3 Bh5 Bg5 Nbd7 Bb2 Rc8 a8N Qa7 Nc7 Ba5 Ne6 Nf6 Rf1 Ne8 Bba3 Qb7 a7 Nc7 a8Q Qb8 Qaa6 Qa7 Rf2 Bb4 Qa4 Ba5 Bac5 Na8 Bd4 Bb4 Bdf6 Ba5 Ng7 Rc7 Ngf5 Bb4 N5h4 Ne6+ Ke4 Ng7 Ng2 Rc8 Kf4 Rc7 Na2 Rc8 Rd3 Rc7 Nc3 Ba5 Qe1 e2 Qed1 e1Q Qe2 Qc1 Rf1 Rd7 c7 Bb4 Nc6 Re7 Bd4 Re5 Na5 Rc5 B4f6 Qc2 Rd5 Qg6 B8e7 Qe8 Rf5 Qb5 Ra1 Qc6 Ra3 Qd5 Na2 Qc6 Rd3 Bc3 Ndb3 Be1 Nc3 Bf2 Nbd2 Bg3+ Ke3 Be1 Kf4
r4Q1B/1rB2BqN/q2RR2p/2kB1K1P/4Q3/5p1n/N4b1B/1QrnQQ2 b - - 0 1 legal: proof: b4 c5 bxc5 b5 cxb6 g5 c4 e5 a4 g4 d4 g3 dxe5 Qf6 c5 Qh4 fxg3 Qg5 g4 Qd8 g5 Ba6 Nc3 Bh6 Nb1 Bb5 axb5 Bf8 Kf2 Ke7 Kf3 a5 Kf4 f5 g4 d5 e4 d4 h4 d3 b7 h6 c6 a4 c7 d2 c8Q a3 g6 a2 g5 Qd4 h5 Qc5 g7 Na6 b8B Qd6 b6 Qd3 e6 Qd7 b7 Qb5 e5 Nb4 g6 Qc6 Nc3 Qb6 Nh3 Qa7 Ng5 Qa5 Bc7 Rh7 b8B Qa7 Bc4 Nc6 Qb7 Qb6 Re1 Na5 Bd5 Nb3 Bb2 Nf6 g8B Ra6 g7 Ra8 Bf7 Nd4 g8Q Ng4 Re2 Bg7 Qf1 Nf3 Rd1 a1Q Na2 Nf2 Bd4 Qa5 Qb1 Qa6 Qh8 Bf8 Qg8 Rg7 Nh7 Ng1 Re4 Rg3 Ree1 Rb3 Qgg2 Rb4 Qge4 Ngh3+ Kf3 f4 Qf5 Qa3+ Bb3 Raa4 Ba5 Nd3 Ke4 f3 Bg8 Ke8 e7 Bg7 Qf8+ Kd7 e6+ Kc6 Bh2 Kb5 Bac7 Ra8 Bf7 Qa6 Kf5 Kc6 Bb2 Kc5 Bf6 Nb2 e8Q+ Qd6 e7 Rb7 Bc3 Bd4 Qa4 Be3 e8Q Bf2 Re7 Qa6 Bh8 Nd3 Bbe6 Qg7 Qh4 Nb2 Qea4 Bd4 Qhe1 Bf2 Qae4 Qa3 Bc4 Qa6 Rc1 d1R Re6+ Qd6 Rc3 Rc1 Ra3 Nd1 Ra6 Nc3 Bd5 Nd1 Qc8 Qb6 Qe8 Qa5 Rad6 Qa6 Qf8
1Q1B1rbq/1bQQpN1P/1R3Q1Q/3qN1Kn/1b2B3/2N5/2RpnN2/3Nk3 b - - 0 1 legal: proof: d4 b5 g4 f5 e4 g5 exf5 a5 a4 h5 axb5 c5 dxc5 Na6 h4 Nb8 hxg5 h4 Bg2 Rh5 gxh5 Ra6 Bh3 Rh6 Bf1 Rh8 Ke2 Kf7 Kf3 d5 Kg4 d4 b4 d3 c4 h3 f4 h2 g6+ Kf6 c6 a4 b6 a3 c5 a2 h6 Qd5 h7 Qe6 b5 Qe4 c7 Qe5 g7 Nd7 c6 Qc3 b7 Qd4 b8N Qe3 b6 Qe4 b7 Qa4 Ne2 Qe4 Be3 Qd5 Bg2 Qb3 Be4 Qa3 Nec3 Qa5 Bb6 Nc5 Nd7+ Kf7 b8Q Nb3 f6 Ke6 f5+ Kd6 f7 Qa7 f6 Qa8 Kg5 Nh6 g8N Bb7 c8N+ Ke6 c7 Nd4 Nd6 Ne2 c8Q Ng4 Qcc7 Bg7 Nh6 Rf8 Ne5 d2 Qa4 Bh8 Rc1 h1B Rc2 Qa5 Qac6 Qd5 Nd1 Bg7 Nbc3 Bf3 Rb1 a1Q Bg6 Be4 Qb5 Bd3 Rb4 Bc4 Nde4 Qb1 Qcc8+ Qd7 Bd8 Nc1 Na4 Qa1 Bh5 Rg8 Nc6 Qc3 Qb6 Kd5 f8Q Bb3 Rb5+ Kc4 Bg6 Kd3 Nef2+ Ke2 Be4 Ke1 Q6c7 Ne2 Rb6 Qd6 Q8d7 Qb2 f7 Bc3+ Kf5 Nf6 Qg7 Rh8 f8Q Nh5 Kg5 Bb4 Qg6 Qg7 Qf6 Rf8 Ne5 Bg8 Nhf7 Qh8 Nac3 Qd5 Qh6
2nn1K2/r3nN1R/5p2/1N4qN/k2B3b/1BQ1NQ1Q/P2Rnp1b/Q5QN b - - 0 1 illegal: Other
bRN2R2/1n4RB/n2bP2Q/1kN1q1B1/b4B1R/2Bp4/1Qr1p2B/1R3bK1 b - - 0 1 legal: proof: d4 b5 f4 d5 a4 c5 axb5 g5 h4 e5 hxg5 a5 dxc5 d4 e4 Qd5 exd5 e4 Bc4 Ra6 Be2 Re6 Bf1 Re5 fxe5 Bd7 Rh5 Be6 Rh1 Bc8 Kf2 Kd7 c4 h5 b4 f5 g4 h4 c6+ Kc7 g6 Kb6 e6 f4 d6 a4 g5 a3 g7 f3 c7 a2 c5+ Ka7 b6+ Kb7 g6 Kc6 b5+ Kb7 d7 h3 d8B h2 c6+ Ka8 b7+ Ka7 Bdg5 Kb6 Qc2 Bb4 Bb2 Bd7 c8Q Rh5 c7 Rh6 Na3 Ne7 g8R Bc3 g7 Rh8 Rf8 Rh4 g8R Ba5 Rb1 a1Q Bc3 Qa2 Qb2 Nf5 Rg7 Ng3 Nh3 Nf5 Bd3 Qa1 Nc4+ Kc5 b6 Na6 b8B Ba4 b7 Nd6 Nb6 Bb4 Nf4 e3+ Kf1 f2 Bh7 Rh3 Nd3+ Kb5 Nc5 d3 Qd8 Rh5 c8R e2+ Kg2 Rh4 Qf6 Rc4 Qh6 f1B+ Kf2 Re4 Bc7 Rc4 b8B Nb7 Bg3 Bd1 Bbf4 Ba4 Bd4 Rc2 Bc3 Rd2 Rb8 Rc2 Rg1 h1B Bh2 Be4 Nc8 Bf3 Rg4 Bh1 Nb3 Bd6 Kg1 Bhg2 Rh4 Bf3 Qc1 Qb2 Nc5 B3g2 Bb4 Qe5 Qb2 Bh1 Nb6 Nd8 Nc8+ Bb7 Nb6 Ba8 Nc8+ Nb7 Bc3+
1Q1B1bQR/2p2Qq1/1RPR1r1p/1n2K3/1RRN3k/3r4/1qQ2r2/Nq1BQ3 b - - 0 1 legal: proof: d4 b5 a4 e5 dxe5 Qg5 axb5 Qd8 e4 f5 exf6 Kf7 f4 Ba6 g4 Ke6 f7 Bc8 e5 Ke7 h4 Qe8 f5 Kd8 Qd5 Bb7 Qd1 Be4 f6 Bf5 gxf5 Kc8 Kf2 Qe7 Ke1 Qd8 Rh2 g5 Qd6 g4 Rh1 Nc6 Qd1 Nd4 Bh3 Ne6 Bf1 Ng5 hxg5 Bc5 Bf4 Be7 Bc1 Bf8 Ke2 a5 Kd3 d5 Kd4 Kd7 c4 h6 b4 g3 g6 g2 g7 a4 e6+ Kd6 b6 a3 b5 a2 e7 Qc8 e8Q Ra3 b7 Qa8 b8R Qb7 b6 Ra5 Rh4 Qc8 b7 Rb5 Qee1 Qd7 c5+ Kc6 Ke5 d4 Nf3 g1Q Nbd2 d3 Nb3 d2 Qc2 d1R Rb1 Rd2 Na1 Be7 f8R Rb3 f7 Rbd3 f6 Qdg4 Rb6+ Kd7 Nd4 Rf2 Bg5 Q4g2 Rfc8 Bf8 Be2 Ne7 g8Q Nf5 Bd1 Nd6 Re8 Rh7 Re6 Nb5 Rg4 Rg7 Bh4 Rg6 Rec6 Bg7 f8R Q1h1 Rfc8 Bf8 f7 Rgf6 Rd6+ Ke7 c6 Qhg1 Nf3 Q2h1 Rc4 Qg7 Nd4 Qf1 Ra8 Qfg2 b8Q Qg1 Raa4 Q1g6 Nab3 a1Q Rab4 Qb2 Na1 Rh3 Qb3 Qgb1 Qc2 Rd3 Bg3 Re6+ Kd5 Kf6 Qh7 Be7 f8Q+ Kg5 Qf7 Na7 Rh8 Nb5 Qhg8 Bf8 Bf4+ Kh4 Bg5+ Kg3 Be7 Rf6 Ke5 Kh4 Bd8
3Br3/3R1NKp/B1p2QB1/2Bk4/1r2nR1R/2rn2rQ/1P1N4/B1b2nRR b - - 0 1 illegal: Other
4n3/1rB3b1/3R1b2/B3p1pp/1RQBKn2/1Q1R2qr/RP1B3N/1N2RB1k b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 g5 h4 Be6 f5 Bd7 h5 Be6 f7+ Kd7 f6 Bf5 gxf5 Bh6 Rh2 Qf8 Rh3 Qg7 Rh1 Qg6 hxg6 Bf8 Ke2 Kd6 Kd3 Ke5 d6 Kf4 g7 Kg3 d7 h5 d8B a5 b6 e5 b7 c5 Bc7 c4+ Ke4 c3 d4 a4 d5 a3 d6 a2 d7 c2 d8B Kf2 Bd2 c1B Nf3 Ra3 Qb3 Nc6 b8R Nd4 Nh2 Be7 f8B Ne2 f7 Bf6 Rb4 Rh7 Bfe7 Nf4 f8R Ra6 Qc4 Ra3 Bc5+ Kg3 Bd4 Rd3 Be2 Kg2 Re1 Rh3 Bf1+ Kh1 Rf7 Nd5 Rd7 Nf4 B2c3 Be3 Bd2 Bf2 Rd6 Bg1 Ba5 Bf2 Bdc7 Bg1 Bdb6 Bc5 Rd3 Bf8 Bd4 Nh6 g8R B8g7 Rd8 Ng4 Rd6 Bh8 Bb8 Rb7 Bbc7 Bhg7 Qb3 Be7 f6 Bd8 f7 Nf6+ Kf5 Ne8 f8Q Be7 Qff7 Bef6 Na3 Rb6 Ke4 Rb7 Rac1 a1Q Qfc4 Qa2 Ra1 Qb1 Ra2 Qd1 Rde3 Qg4 Rd3 Qg3 Nb1
1Q2N2B/P3p3/b1NnRnBk/pr2Q2q/3RbKNR/r1N5/R6p/1N4R1 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 g3 b5 Bh6 hxg3 Na6 g4 Nb8 g5 Bf8 a3 a5 Qb3 Qd6 Qd3 Qa6 bxa6 b5 Ra2 b4 Qb3 Bg7 Ra1 Bc3 Qc2 b3 Qd1 Bb4 axb4 Kf7 Qc2 Kf8 Qd1 Ke8 Ke2 Kf7 Ke3 Kg7 f4 h5 d4 c5 g4 c4 f6+ Kh7 g6+ Kh6 d6 c3 f5 b2 d7 h4 d8N h3 a7 c2 f7 h2 f8R Kg5 f6 Rh5 d5 Nc6 g7 Kg6 g5 Rh3+ Kf4 Rg3 f7 Kh7 d6 Rg2 g6+ Kh6 d7 Nb8 b5 Re2 b6 Rg2 b7 Nf6 g8N+ Kg7 Qh5 Ne4 Nh6 Nd2 Ne2 Nf3 Nec3 Ne1 Rg1 Rg3 Ng4 Rd3 Ra2 Nc6 b8Q Ne5 Nc6 Nc4 d8R Nf3 Rh8 Nd6 f8R Ng5 Rf6 Nh7 Re6 Ba6 Qe5+ Nf6 Rh4 Rg3 Be3 c1Q Bd3 Qd1 Bd4 Qe2 Nd2 b1B Bf5 Be4 Ndb1 Qb5 Rd7 Qb7 Rd8 Qc8 Rd7 Qe8 Rd8 Kf8 g7+ Kf7 g8N Kg7 Rd7 Qh5 Bg6 Rh3 Nb5 Ra3 Ba1 Nc4 Rd4 Nd6 N5c3 Nc8 Qb3 Rb8 Qb2 Rb5 Qb8 Ne8 N8f6 Ncd6 Qe2 Bd3 Qe5 Be4 Nfd5+ Nf6 Nc7 Bf3 Bb2 Be4 Ne8+ Kh8 Na4 Rh3 Rd5 Ra3 Qc3 Kg8 Qc5 Nd7 Bh8 Nf6 Rd4 Kf8 Qe5 Kg8 Bf7+ Kh7 Nac3 Bb7 Nf2 Kh6 Bg6 Ba6 Ng4+
2BQ4/BQ1K1bk1/4Q1BB/5Q2/r5Pp/1BNnN1p1/Qr1R2rp/rR5q b - - 0 1 illegal: Other
1QR5/2pBRK2/1N2pB1R/Bq6/2p1rP2/1B1pR1N1/BQpkb3/1R2r1b1 b - - 0 1 illegal: Other
2n1q2b/1q1b3N/3QBr1n/r2Q4/Q1PBn3/1RRr4/1KRNk2R/1QQ2qR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 h4 Ke5 f4+ Ke4 b4 e5 f6 a5 c6 g5 h6 d5 f7 a4 h7 a3 h5 g4 f5 a2 h6 g3 b6 g2 c7 Nc6 f6 Be7 f8Q Ba6 c8Q Bb7 f7 Qc7 b5 Nd8+ Bc4 Ba3 Qe8 Nc6 f8Q Ra5 Be3 Na7 Rh3 Bc6 Nf3 g1N b7 d4+ Kb3 d3 b8Q d2 b6 Ne2 b7 Ng3 Qd6 Qd7 c3 Bb2 Ng5+ Kf5 Qa8 e4 b8R Bb5 Qg1 Kg4 Bf7 d1R Qad5 Rf1 c4 Rf4 Qcb7 Nc8 Qbb6 Bg7 Bd4 e3 Qd1+ e2 Qc2 Nh1 Rc3 e1Q Qb2 Qee7 Be6+ Rf5 Rc2 Ng3 Nd2 Ne4 Qbb7 Be5 Rg1+ Kf4 Qba3 a1Q Qb2 Qf1 Qc1 Ba4+ Ka2 Qc7 Qbb1 Qa7 Rb4 Qab7 Rb3 Qf7 Qeb5 Qe8 Kb2 Rf7 Qbb4 Bd7 Qa4 Rf5 Bc3 Ke3 Bd4+ Ke2 Rb5 Nge7 Rb3 Rhf8 h8R Rf3 h7 Nf5 Rg8 Bg7 h8R Rf6 Rh4 Re3 Nh7 Bh8 R8g3 Nh6 Rhh1 Ref3 Rgh3 R3f4 Rhc3 Rf3 Rh4 Rd3 Rh2+
b7/2b1Q1Qb/2b3QK/1Nn1n1N1/2P1q1Q1/RNbNB1k1/1n1rB1r1/1NQ4R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 e5 g4 d5 f4 a5 c4 h5 b4 e4 b6 a4 b5 a3 b7 h4 c6 a2 f6 Kg6 b6 h3 c7 h2 f5+ Kf7 Kf4 d4 g6+ Ke8 Kg5 Kd7 g7 Kd6 Nh3 Ke5 Be3 d3 Be2 d2 Qc1 Nd7 b8N d1B b7 Nh6 g8Q Qe7 Na6 Bc2 b8N Bb7 c8N Nc5 Nd6 Bc6 Qg6 Rg8 Nb5 Nf7+ Kh5 Qb7 g5 Bd6 Nb4 Bc7 N8a6 Rad8 Nd6 Nd3 Nb5 Nb2 Nc5 Rd2 Nb3 Qa8 Qg7 Bd3 g6 Qe8 Ng5 Ba8 Ba7 Kf4 Be3+ Kg3 Qh7 Qe6 g7 Ne5 f7 Qd5 f8Q Qc6 Bg1 e3 f6 Qe4 f7 Bc6 Qe7 Bc2 Bf3 e2 f8Q e1N Kh6 N1d3 Be3 Nc5 Be2 Ba8 Nd3 Bc6 Rf1 h1B Qg6 Bg2 Rf6 Ba8 Ra6 Bh1 Ra3 Bf3 N1c3 Bc6 Rb1 a1B Qc8 Ba8 Qg4+ Kh2 Qh7 Ng6 Nf2 Qe6 Qf5 Nba4 Qf1 Bae4 Ngh3 Ba8 Rc1 Bg2 Nb1 Bc3 Qff8 Bf5 Nd3 Bgc6 Qe1 Qe4 Qff7 Re8 g8Q Ne5 Rd1 Rf8 Qg4 Nb2 Qhg7 Bh7 Qfg6 Rf2 Ng5 Rg2 Rc1 Bb6 Qd1 Bba5 Qc2 Bc7 Rf1 Nca4 Qc1 Nc5 Q4f5 Kg3 Rh1 Nb7 Qfd7 Nc5 Qg4+
B2nK1B1/4R2B/Nb2r1Qq/2r2q2/1B6/n2Q2B1/nNNnP1R1/bbkNN3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kf3 c5 Kf4 f5 b4 h5 g4 a5 d4 h4 e6 Kd6 g6 a4 g5 h3 e7 a3 e8N+ Kd7 Ke5 a2 d6 c4 g7 f4 g6 f3 d5 h2 b6 c3 b7 f2 b5 c2 b6 Nf6 g8B Qc7 g7 Ra5 Qd3 Rh6 Nc3 Rc5 Bd2 c1Q Nd1 Qc6 Bh7 Qb1 g8B Rh4 Qg6 Qbb5 Bg2 f1N Nf3 Rh6 Ne1 Ne4 Bb4 Nc3 Kf6 Nd2 Kf7 Ndb1 Rg1 h1N Be4 Qd3 Rg2 Na3 Rc1 a1B Bf3 Na6 b8B Na2 b7 Ng3 Rc4 Bfg7 Re4 Bgd4 Kf8 Nf1 Re7+ Kd8 d7 Nc7 Nd6 Ne6+ Kf7 Nd2 Nc4 Qe4 Bg3 Qf5+ Qf6 Qd6 b8N Kc7 Ke8 Nd8 Ncb2 Kb6 Qg6 Kb5 Na6 Qb6 d6 Qc6 Qh5 Re6 Qg6 Qb6 Ba8 Bb7 Qg4 Be4 Qg5 Bb1 Qg6 Nb7 d8Q Bg1 Qc7 Nd8 d7 Bf2 Qd6 Bd4 Nc4 Ka4 Ncb2+ Kb3 Qd5+ Rc4 Qb5 Qd6 Qd5 Bb6 Qe4 Rc5 Qd4 Nb7 d8N Qdf4 Nc6 Nd8 Ned3 Kc2 Ne1+ Kc1 Qd3 Q4g5 Nd4 Qh6 Ndc2
RB2NR2/1n1q3N/2bbB2R/5rqq/nB1B1r1k/Q1r1Q3/P6q/1KBR2R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 d4 Kf6 Kd2 b5 Kc2 e5 f4 g5 d6 c5 d5 e4 a6 b4 h6 c4 d7 c3 d6 e3 h7 g4 a7 e2 h5 e1R h6 g3 Nf3 g2 Na3 g1Q Qd3 b3+ Kb1 b2 Nb5 Na6 Ng5 Ne7 Bh3 Nc5 Qe3 Ng6 Nc7 Qg4 Rg1 Qe7 d8B Qh5 d7 Bb7 Bg4 Rb8 a8Q Nh4 Qa3 Rf1 Bh3 Rg8 h8R Rc8 h7 Na4 Bg4 Bc6 Bh3 Kg7 f6+ Kh6 f7 Nf5 Ne8 Nd6 f5 Nb7 f6 Rf5 Bc7 Qd8 Bg4 Bd6 Bb8 Rf8 Bh3 Qc7 d8R Qd7 Bg4 Rf4 Be6 Qh2 Rd1 Kh5 Rg1 Kh4 Rd1 Rg8 f8R Rg6 f7 Rgf6 Rfg8 R6f5 f8B Qe2 Rg6 Qh5 Rh6 Rc7 Be7 Rc8 Rf8 Rc7 h8B Rc8 Kc2 Rc7 Kd3 c2 Bd4 b1Q Kd2 Qb2 Rc8 Be5 Bb4 Bd6 Rd8 Rc8 Nh7 Rc7 Kd3 Rc8 Bba7 Rc7 Ra8 Rc8 Bb8 Rc7 Bcd2 c1Q Rb1 Qc5 Bc1 Qh2 Rg1 Qd5 Rd1 Qdg2 Rg1 Qg5 Ra1 Qhg3 Kc2 Qh2+ Kb1 Bf3 Rf1 Rc3 Rd1 Bc6 Rg1 Nb6 Bb2 Rb3 Kc1 Na4 Rb1 Qh3 Kc2 Rd3 Rbd1 Qh2+ Kb1 Rc3 Bc1
2r1nr1b/Q7/bR1n1R2/PQ1q4/BKNQq3/r1N1B3/k1bQQB2/1b1B2B1 b - - 0 1 illegal: No possible last move
1bRB3Q/1RR5/q2kR3/P2nqr2/KNb2b1Q/2NBb3/2BRB2r/3B2nr b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 c5 Kc3 b5 Kb3 e5 g4 h5 f4 b4 a4 h4 d6 e4 d5 h3 f6 e3 g6 h2 g7 e2 a6 e1B a7 Qe7 a5 c4+ Ka4 b3 f5 b2 f7 c3 g5 c2 f6 Qe6 g6 Qe2 Nh3 Qe4+ Qd4 Qe2 Bg5 c1B Qh4 Qe5 Be2 Bb7 Nc3 b1R Nf4 Ba6 Nd3 Rb3 Rb1 Rh7 Nb4 Bg3 Re1 Ne7 g8B h1Q g7 Rh6 Bh7 Bb2 g8B Qh3 Bc2 Qh2 Bgh7 Qf2 Bhd3 Qb6 Rbc1 Bg7 f8Q Nbc6 f7 Bc4 Qh8 Rf8 a8B Nd4 Bb7 Qa6 Bc8+ Kd8 d7 Kc7 d8R Bf4 Bcg4 Nf3 Rb8 Ng1 Rb7+ Kd6 Bed1 Rh5 Bge2 Bh6 Bf6 Rf5 Bg5 Ra8 f8R Be3 Bf6 Bhf4 Rc8 Ba1 Rcc7 Rb1 Bg5 Rg8 Bf6 Rg2 Bg5 Nc6 Bd8 Rh2 Rc8 Kc5 d6 Bb2 d7 Kd6 Bg5 Ne7 Bf6 Nd5 d8R+ Ke6 Rdd7 Ba1 Rdc7 Kd6 Bd8 Bb2 Bb3 Ba3 Rc2 Bac1 Rb2 Ba7 Ra2 Bce3 Rd2 Bb8 Bbc2 Qd4 Rc5 Bf2 R5c7 Nh3 Bf3 Bg1 Re4 Bge3 B1e2 Rbh1 Bed1 Ng1 Bfe2 Qf6 Ree7 Qe5 Re6+
Q1k1b2b/5N1B/1bP2bBQ/r7/NbR1NB1q/1NRr1n1b/6nB/KN1B4 b - - 0 1 illegal: No proof kernel
2Q1B2K/1B1rR1P1/3B1Qrb/N6b/qk1n2n1/2brB1rQ/RBQQb3/N7 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 g4 a5 f4 a4 b4+ Kb6 d4 c5 f6 a3 f7 e6 f5 h4 f6 a2 g6 c4 g5 h3 g7 h2 d6 c3 d5 c2 d7 Rh6 g6 Qe7 d8B+ Qc7+ d6 Ra5 Bb2 c1B Nf3 Ba6 Ne1 Rh3 Nc2 Ne7 g8B Rha3 Nd2 Bg7 f8Q R3a4 Bg2 Bb7 Re1 h1B Bf7 Nc8 Qh8 Na7 Be8 Ba6 Nb3 Bch6 Bb7 Bf3 Be7 Qc8 d7 Ra3 Bd6 Bh5 d8Q+ Qc7 Qc8 Qd7 Qd2 R5a4 Na5 Rg3 Re2 Raa3 Rae1 Qc6 Na1 Rad3 Rf2 Qc4 Ree2 Qb3 Qcc2 Qa4 Re3 Nc8 Rg2 Ne7 Re1 Nd5 Rh2 Bf8 f7 Ne3 Kf6 Nc6 Bf4 Bc5 f8Q e5 g7 Rg6+ Kf7 e4 Kg8 Bd4 Qf6 Ng4 Rhe2 Bc3 Be3+ Kc7 Qh7 Rd7 Kh8 Nd4 Bg5 e3 b6+ Kb8 Rf2 e2 Be3 Bc4 b5 Bd3 Rb1 e1R Rh2 Rg1 Re1 Rg5 Qhf5 Be2 Qf3 Rg6 Qh3 Nf2 Bf3 R1g2 b7 Ka7 b6+ Ka6 b8Q Kb5 b7 Ng4 Qc8 Kb4 b8B Rg1 Bb7 Rg3 N1b3 a1R Bd6+ Kb5 Rg2 Ra3 Na1 Rb3 Rf1 Ra3 Rf4 Rb3 Re4 Ra3 Re7 Rb3 Bb8 Kb4 Rh2 Ra3 Bc7 Rb3 Bd6+ Kb5 Qdc1 Bc4 Q2b1 Bb4 Bc3 Bd3 Rd2 Be2 Ra2 Ra3 Bb2 Rd3 Qd2 Bc3 Be5 Kb4 Qbc2 Nf3 Bc7 Nd4 Bd6+
RBB4K/N5Qb/3kqB2/1Pn2br1/1rBpR2N/2nr4/1B1bR3/n1Q1RR2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 a5 Kf3 e5 Ke4 Ke7 f4 h5 g4 a4 b4 h4 c4 a3 g6 d6 f6+ Ke6 f5+ Kd7 g5 h3 f7 h2 c6+ Kc7 c5 a2 g7 Qd7 g6 Qd8 f6 Ra4 Bb2 Ba6 Kf5 e4 b6+ Kc8 c7 Kd7 c8B+ Kc6 b7 e3 Nc3 e2 Nf3 e1N Nh4 d5 Bc4 d4 Qc1 Ra5 Rf1 h1B Nb5 Rh7 Na7+ Kc7 Rf4 Bd5 c6 Qd6 Re4 Nd7 Rb1 Be7 f8R a1R f7 Ngf6 g8Q Nc5 g7 R1a3 Kg6 Qe6 Re2 Kd6 c7 Rd3 Qh8 Rb3 g8R Nc2 Qg7 Na1 Re8 Ra4 f8B Rh5 Rh8 Rf5 Kh6 Nfe4+ Kh7 Bb5 Re1 Bd7 b5 Rbb4 Rg8 Ra2 Kh8 Ra3 Re2 B7c6 Bd7 Rh5+ Qch6 Qf6 c8R Ng5 Ra8 Be4 Bc8 Bh7 Rbe1 Nge4 Qc1 Qf5 Qg4 Rd3 Bh6 Bg5 Rgf8 Bd7 Bg7 Nc3 R8e4 Bd2 Qg3+ Qe5 Rff1 Bdf5 Qg4 Qe7 Bf6 Qe6 Qg7 Rg5 b8B#
Q7/1nnk2BN/RR1R2Pb/b2b1r2/1QB3n1/1RBrN2p/2r2B2/1Bq2RK1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 e5 b4 h5 f4 c5 Kf2 a5 d4 e4 d6 a4 g6 a3 f6 c4 g5 h4 d5 c3 f5 h3 g7 c2 d7+ Kf7 d6 a2 b6 Ra5 b5 Rh7 b7 Qe8 d8B Rh4 d7 Ra8 b6 Bc5+ Qd4 Rh5 Be3 c1N Bd3 Qe7 Nf3 Qe8 Nc3 Qe6 Rf1 Nc6 b8R Qd5 b7 Qc4 Ba5 Nb4 d8R Nh6 Nd1 Be6 Bb1 Bf8 Kg1 Nb3 Bf2 e3 Rd6 e2 Ne3 Nd5 Bc3 e1B Qc5 Ng4 Qb4 Qc8 g8B+ Ke8 g6 Ra3 Ng5 Nc7 Nh7 Bh6 f7+ Ke7 f8R Nc5 Rf6 Bd5 Rb6 Rb3 Rfd6 Rb2 Be6 Rc2 f6+ Ke8 Bg8 Rf5 f7+ Ke7 f8B+ Ke8 Rdc6 Kd7 Bfg7 Bd2 Ra8 Be1 b8Q Nb7 Ra3 Bd2 Qa8 Be1 Bce5 Bd2 Rb3 Be1 Qc5 Ba5 Bf7 Qf8 Qa3 Qc5 Qb4 Qc3 Bef6 Qd2 Bd4 Qc1 Bc3 Be6 Ra3 Re2 Qc4 Bb4 Raa6 Ba5 Qb5 Rd2 Qb4 Rd3 Bc2 Bb3 Rb1 a1R Bg8 Be6 Rb3 Ra2 Bb1 Rc2 Bf7 Bd5 Bg8 Be4 Bc4 Bd5 Rd6+
1n2Nq2/Q3R2b/1b5B/qRQ2Bk1/N2r2B1/PNn2p2/1KN2n2/1brNB1B1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 h4 Ke7 d4 b5 Kd2 f5 Kc3 c5 e4 g5 a3 g4 a6 g3 d6+ Ke6 a7 g2 d7 c4 d5+ Kf7 d6 f4 h6 Kg6 e6 f3 e7 b4+ Kb2 b3 e8B+ Kf6 e5+ Kf5 h7 Bg7 h5 Qh4 d8N Kg4 h6 Qh2 d7 Nf6 e6 Ba6 e7 Ng8+ Qd4+ Kf5 Nc6 Be5 d8Q Qh3 Qd6 Bb5 Qc5 Qh5 Bd7+ Kg6 e8N Qg5 Be3 Ba6 Bg4 Nf6 Ne2 g1N Nbc3 Nh3 Rb1 Qh4 Nc1 Nf2 Nb4 Qg5 Nc2 N6e4 Bfh3 Bc7 Re1 Bb6 Nd1 Nc3 Re2 Rf8 h8B Rf4 h7 Qd5 Bg7 Kg5 h8B Qf5 Be5 Qf8 Bhg7 Bc8 Bd2 Bf5 Be1 Bh7 Qd7 Rd4 Bh2+ Nd5 Bg1 c3+ Ka1 b2+ Ka2 Nc6 Nb3 Rc8 a8N Nb8 Qa7 Rc6 Re7 Rc7 Nb4 c2 Bf5 c1Q Nc2 Qd2 Bhg4 Ba5 Nb6 Qc3 Na4 Bb6 Rc1 Qa5 Ra1 b1B+ Kb2 Ba2 Rb1 Nc3 Qb5 Rcc4 Qc5 Nd5 Nce3 Rc1 Nc2 Nc3 Nd2 Bf7 Ka1 Nd5 Ka2 Be6 Rb5 Nc3+ Kb2 Ba2 Nb3 Bb1 Bh6+
2R2KN1/2rq4/bQNnr1R1/3N2Nn/2kp3N/Bq2b1P1/3R2rR/QR1Bq3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 d5 Kd4 h5 Ke5 a5 b4 h4 c4 h3 f4 h2 g3 e6 g6+ Ke7 f6+ Kd7 b6 Kc6 f7 a4 b7 d4 b5+ Kc7 b6+ Kc6 f5 a3 g7 a2 f6 Rh4 Ba3 Na6 b8Q Rh8 b7 Qe7 Nc3 Nb4 Rb1 a1R Nh3 Rh7 Ng5 Ra6 Be2 Rh5 Nd5 Nh6 g8N Bg7 f8N Ra2 Ng6 Qd7 Nh4 Nf5 Bf3 Bf8 f7 Bh6 Kf6 e5 f8R e4 Qc1 e3 Bd1 e2 Qa7 Qd8+ Kf7 e1Q b8R Nd3 R8b2 Qb6 Rd2 Qb3 Qb8 Nf4 Qb6+ Kd7 Qc3 Ra7 Qa1 Ba6 Re8 Rc7 Re6 Rb2 Rg6 Rc2 Rg1 h1Q Rgg2 Qh3 Rh2 Qg4 Ne4 Bg5 Kf8 Rh6 c6+ Kd8 c5 Nd6 Ndf6 Nh5 Nd5 Be3 Ng5 Qd7 Bg4 Kc8 Bd1 Ra7 c7 Rb7 Rg7 Re6 Rg6 Ra7 Qa5 Kb7 c8N Kc6 Qd8 Kb5 c6 Qh1 c7 Qe1 Nce7 Kc4 c8R+ Rc7 Nc6 Ra2 Rd3 Rg2 Rd2 Rb7 Qa5 Rc7 Qb6
B2q3N/2NrB2B/b1BQ1Nr1/2b3PK/NR1Q1NR1/4n3/qqrpk3/n5B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 d5 Kg4 e5 b4 a5 c4 d4 f4 a4 b6 e4 c6 d3 b7 e3 c5 h6 b5 e2 g6+ Kf6 c7 e1Q g7 a3 c6 a2 b6 Qe3 Kh5 Na6 b8N Bd7 c8B Be7 g4 Nc7 b7 Ba3 g5+ Kf7 f6 Ke6 f7 Kd5 f8N Ke4 f5 Qf2 f6 Rh7 f7 Qc5 Ng6 Nd5 f8B Qc4 c7 Nge7 g8N Rf7 Na6 Nf5 b8Q Nd4 Be3 Nb3 Ne2 Kf3 Rg1 Bb5 Bb7 Bc5 c8B Rd7 Nc7 Ra6 Nh8 Rg6 Be7 Ba6 Bc6 d2 B8b7 Qc2 Nbc3 Qb2 Rb1 a1Q Na4 Qaa2 Ba8 Na1 Qc2 Bc8 Qc4 Ba6 Bf4 Kf2 Rg4 Ne3 Qd3 Qc4 Nf6 Qca2 Nfd5 Kf3 Bh2 Kf2 Nef4 Kf3 Kh4 h5 Qd4 Kf2 Bd3 Kf3 Kh3 h4 Bc2 Kf2 Bg1+ Kf3 Ng2 Ke2 Nf6 Rg7 Bh7 Rg6 Kh2 h3 Kg3 h2 Kh4 Qag8 Kh5 h1R+ Bh2 Re1 Bg1 Rc1 Qb6 Rc2 Qd6 Qe5 Rbb4 Qb2 Qd4 Qga2 Nf4+ Ke1 Bb5 Kd1 Qbd6 Ke1 Bbc6 Kd1 Nh3 Ke2 Nf4+
1RqBQ1qb/K2Rn1q1/4BN2/2P2NRr/b2QnR1r/1B1R2rp/2k2B2/6B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 g4 h5 b4 e6 f4 h4 c4 h3 c6 a4 g6+ Kf6 b6 a3 g5+ Ke7 Kc5 d4 c7 e5 g7 e4 g6 a2 b5 d3 b7 Kf6+ Kb6 d2 c5 e3 Nf3 e2 Nh4 e1R Bc4 Rg1 Bb3 Na6 b8B Be7 Nc3 Bf8 Ne4+ Ke7 f6+ Kd7 f5 Ra7 f7 Rg3 f6 Qe7 Nf5 Bb7 c8B+ Kd8 Bce6 Nc7 Qg4 d1Q Be3 Qf1 Bg1 Qg2 Rd1+ Qd7 Rd3 Ne7 g8Q a1Q g7 Ra4 Rh2 Qga2 Rhd2 Ne8 Be5 Rb4 Bed4 Nd6 Bdf2 Rh5 Qh8 Qc8 g8R Qaa8 Rg5 Bc6 Qf4 Qe5 Qe3 Be8 Qd4 Bg7 f8B Bd7 Qg8 Bh8 f7 Qg7 Nf6 Ne4 Rd1 Qd5 Ka7 Kc7 b6+ Kc6 b7 Kb5 b8R+ Ka5 R1d2 Ba4 Rd1 Qh7 Bh6 Qg7 Qe8 Qc4 f8R Qd5 Bd7 Qdg8 Bde6 Rc4 Ra8 Kb4 Rb8+ Ka3 Rf7 Ng6 Rd7 Ne7 Rc1 Rb4 Rcc3 Kb2 Rf3 Q7f7 Rf4 Qfg6 Bf8 Q6g7 Rd3+ Kb1 Bbc4 Kc2 Ba2 Ng6 Be7 Rc4 Bd8 Ne7 Bb3+ Kb1 Rff3 Nd2 Qd6 Rch4 Qd4 Ne4 Rf4 Kc1 Ba2 Kc2 Bab3+
3nnBRq/3NN2B/1q1B3p/1rrr2Rb/3kRK1b/6RP/Q1q5/RB2QB2 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 Kf2 Ke7 Ke3 Ke6 c4 f5 g4 a5 b6 d5 b7 a4 g6 a3 g5 d4+ Kf4 a2 e4 d3 g7 d2 c6 h6 c5 Qa5 h3 Qb6 g6 Qb5 c7 Na6 b8B Qd7 c6 Nc5 Ba3 Qe7 Qa4 d1Q Nc3 Nb3 Nf3 Bd7 c8B Ra6 c7 Qd8 Rg1 Nf6 g8R Nd4 g7 Nc6 Nd5 Be7 Rg3 Rb6 Bb7 Rb3 c8B Qe2 Bbd6 Qb6 Bab4 Bd8 Ne7 Qc2 Bba6 Rb2 Bad3 Ne8 Ba3 Rb5 Rg5 Kf7 e6+ Kf6 Ne5 Rc5 N7g6 Rd5 e7 Be6 Rg3 Bf7 Nd7+ Ke6 e5 Rb5 Bac5 Kd5 Bb4 Kd4 e6 Rh7 Be4 Rd5 Bca6 Rc5 Bad3 Rh8 Re1 a1Q Qa2 Qab2 Ra1 Rb5 Kf3 f4 Kg4 f3 Kf4 f2 Ba3 Nc7 e8R Bh4 Ne7 Nd8 Bh7 Bh5 Bdg6 Qcc3 Bb1 Qcc2 Rgf8 Rc5 g8R Rb5 Rf5 Rd5 Ref8 Ne8 R8g5 Rg8 Re5 Rg7 Rg8 Rc5 R5g4 Rg5 Ree3 Rgd5 R4g5 Qg6 Re2 Qg7 Ree5 Qh8 Ree3 Qc3 Re2 Qd3 Re4+ Kc3 Ng6 Rb5 Bf8 Rb2 e7 Nd6 e8Q Rbb5 Re2 Kd4 Bg2 Qd1 Qe7 Ne8 Bd6 Qd3 Qe6 Qb3 Ne7 f1R+ Rf2 Rh1 Re2 Rc1 Bf1 Rcc5 Re1 Qd3 Qee2 Qc2 Qd1+ Qd3 Ree3 Qd2 Qe1 Qc2 Re4+
5Rn1/6b1/B4PNq/RQQK2kb/7R/RNQ1pr1r/bqq1QnQ1/B5R1 b - - 0 1 illegal: No possible last move, all moves rejected
1N1bR1NB/5rp1/Rr1QN1q1/bQ6/1PN2n1k/K1RB1q1b/1N4nn/1R5R b - - 0 1 illegal: Other
Bb3qN1/R1nP1q2/b2R1r1N/4QnRp/1rQ2N2/B1K2RN1/kn1R4/3N3r b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 d4 h5 Kd2 c5 d6 c4 g6+ Kf6 g7 a4 d7 a3 d5 e4 d6 e3+ Kc3 a2 g5+ Kf7 b6 e2 b7 e1R g6+ Kf6 b5 Be7 b6 Ra5 Qe2 Ra4 Rh2 Qe8 d8R Rh7 Ba3 Qc6 Bg2 Nh6 g8N+ Kg7 f6+ Kh8 f7 Kg7 f8R Qc7 f5 Na6 b8R Rb4 b7 Qd7 Qc2 Nc7 Ne2 Rh1 Ng3 Bg5 Bf3 Qf7 Rd2 Bf4 Ra8 Rh8 b8Q Ba6 Ra7 Rh7 Ba8 Rh8 Ne7 Kf6 g7 Ke5 f6 Nf5 g8N Rh6 d7 Rg6 Nh6 Ke6 Rg8 Qf8 f7 Rf6 Rg5 Ke5 Re2+ Kd6 Qa4 Kc5 Rd2 Bd6 Neg8 Be5+ Kc2 c3 Re8 Kc4 Re6 Nd5 Qe8 Bb8 Rd6 Nc7 Qe5 Qg7 f8N Qf7 Ne6 Qf8 Rd1 Qf7 Kc1 c2 Kd2 c1N Nc3 Nd3 Nf4 Nb2 Kc2 Qf8 R1d2 Qf7 Rb1 a1Q Rf1 Qf8 Rf3 Qf1 Re3 Qf3 Nd1 Qd5 Rf3 Qdf7 Kc1 Ne3 Qc6+ Kb3 Qc2+ Ka2 Qd3 Nf5 Kc2 Nc4 Kc3+ Nb2 Qc4+
2Q1n1B1/PN1k2qR/b2B2r1/1b1Qb2r/BN3B2/pq1n1R1N/6NN/4Bn1K b - - 0 1 illegal: No proof kernel
2bbR2k/Q1qQNb2/3BQ3/1b1K4/n1P2R1N/rr1N1p1N/2N3BQ/1b4nQ b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 b5 Ke3 f5 Kd4 Kf7 a4 Kg7 c4 d5 e4 h5 g4 h4 c6 f4 g6 f3 e6 h3 a6 h2 g5 b4 c7 b3 e7 b2 e8Q Rh5 a7 Nd7 e5 Rh4+ Bf4 Bb7 c8N Qf6 a5 Rh7 a6 Qe6 Nb6 Be7 Nh3 Bf6 Na4 Rh8 Nc5 Nf8 Qd7+ Ne7 Na3 b1B Bg2 Qf5 Nd3 Bc8 Nc2 Rb8 a8Q Rb3 a7 Nh7 Qb8 Qe6 a8Q Qd6 Qg1 Qc7 Qaa7 Rd8 Ra6 Kh8 Re6 Re8 Qd1 Rf8 Re1 h1B Re4 Rd8 Bh2 Rf8 Rf4 Rd8 Ke3 d4+ Ke4 Nd5 Qf1 Rg8 Re8 Bd8 e6 Nb6 e7 Na4 Kd5 Ra3 Rf5 Rf8 Bd6 Rg8 Rf4 Rb3 Ndb4 d3 Qe1 d2 Nd3 d1B Qeg1 Nf8 Qh2 Ne6 g7+ Kh7 Qag1 Nd4 Qa7 Ne2 Qe6 Rf8 g8N Kh8 g6 Ra3 Qe1 Ng1 Nh6 Rb3 Nf5 Rg8 Bf1 Bg2 Nh4 Ra3 Qeg3 Rb3 Qh1 Rf8 Qgh2 Rg8 Ng5 Bh3 Bg2 Bg4 Nh3 Bh5 Ref8 Ra3 e8Q Rb3 Q8d7 Ra3 R8f7 Rf8 Re7 Rf5+ Kd4 Rb5 Ke4 Rbb3 g7+ Kh7 g8N+ Kh8 Kd5 Be8 Ne3 Bf7 Re8 Bdc2 Nc5 Bcg6 Nc2 Bf5 Nd3 Be4+ Kd4 Bc6 Ke5 Bb5 Kd4 Bba6 Kd5 Bb5 Ne7+
1Bn2Nb1/B2nrn1B/1q2NB2/2P1QKBR/r1p1R1N1/2bN4/k1Q2b2/n4N2 b - - 0 1 illegal: No proof kernel
2bnr1R1/n3nq2/5QP1/1N2K3/bQQQ1NR1/bp1B4/3R1B1R/R1rQn2k b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 h5 Ke4 c5 g4 e5 a4 b5 d4 b4 f4 c4 a6 c3 d6 h4 a5 h3 a7 c2 d5 h2 f6 Kg6 a6 b3 d7 Be7 f7 Bf8 f5+ Kh7 d6 Kg7 f6+ Kg6 Ne2 Be7 f8Q Rh3 f7 Rh4 Nbc3 Rh8 Rg1 h1B+ Rg2 Qc7 d8Q Qc5 d7 Qf2 Be3 c1N Nb5 Ba3 Qb4 Nc6 f8Q Qf7 Bf2 Nd3 Qfc5 Rh4 Qcc4 Nf4 Qdf8 Ne6 d8R Rh2 Rd2 Ned8 Qd4 Rb8 a8R Nge7 a7 Rh3 Qh8 Rc3 Qbc4 Rc1 Qf6+ Kh7 g6+ Kh6 g5+ Kh5 Ng3+ Kh4 g7 Kh3 g8R Nb7 g6 Nbd8 Kf3 e4+ Kf4 e3 Bd3 e2 Nh5 e1N Rg4 Nb4 Ke5 Kh2 Nf4 Bc6 Raa2 Be8 Ra1 Kh1 Rg2 Rb6 Rb8 Bc6 a8Q Ra6 Qb7 Ra8 Qbb6 Be8 Rb7 Bed7 Ra7 Rb8 Ra4 Nbc6+ Ke4 Na7 Ke5 Be8 Qa5 Bc6 Qab4 Bb2 R4a2 Ba3 Rg4 B6d7 Be3 Be8 Rdg2 Ra8 Rad2 Bc6 Bf2 Be8 Nc7 Ba4 Nb5 Ndc6+ Kd6 Bb7 Qf5 Re8 Qff6 Nd8 Ke5 Bc8 Rh2+
Q2KnQN1/r1n2B1p/1Nb2R2/1bkNR3/R3nR2/b1P1R3/n1q4B/r2N1N2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 e5 Ke3 Ke7 Ke4 a5 Kd5 e4 f4 d6 g4 a4 b4 a3 c6 e3 g6 e2 c7 e1N c3 a2 g5 Nd3 f6+ Kd7 f7 Nf2 f5 Be7 f8Q Nh3 f6 Ra6 f7 Nc6 b6 Ra4 b5 Nh6 b7 Ng8 b8R Ne5 b6 Qe8 g7 Ng6 b7 Rg4 Nd2 Rg2 Qf3 Nf2 Nh3 Rg4 Bc4 Rg1 Nf1 Ne4 Nf2 Qd8 Rh3 Nf4+ Kd4 Kc6 g6 d5 Ke5 d4 Nd1 Bf5 c8N d3 Nb6 Nd5 Bf4 d2 Bh2 Ngf6 g8N Nc7 g7 Qd3 Re8 Qc2 b8R Ba3 Ne7+ Kc5 g8N Bd7 Qh1 Bb5 Re3 Rg7 Ra8 Rg1 Ra4 Bc6 Rb1 a1N Rbb4 Nb3 Kf5 Nc1 Ned5+ Nd6+ Ke5 Na2 Bb3 Rg7 Rf4 Ne4 Re6 Rg1 Qf3 Rh1 Qa8 Rg1 f8R Nde8 R8f6 Rh1 Kf5 Bb5 Re5 Bc6 Nb2 d1B Qf2 Bf3 Nd1 Be2 Qf3 Beb5 Bc4 Na6 Ke6 Nac7+ Ke7 Rg1 Nh6 Rf8 Ng8 Rf7+ Kd8 Na6 Be2 Ra7 Qf2 Nac7 Bh5 Rg2 Qf3 Re2 Bf7 Re1 Nf2 Ra1 Nd1 Ra6 Qg4 Ra5 Qg7 Ra7 Qf8+
1n2bB1Q/1NRn1p2/1P6/Br1nk1B1/1r3nb1/bB6/R2Nq3/RRRQB1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 g4 a5 d4 c5 b4 h5 e4 c4 b6 h4 b5 c3 e6+ Kd6 e5+ Ke7 g6 a4 b7 c2 d6+ Ke8 d7+ Ke7 g5 h3 g7 a3 d5 a2 g6 h2 Bg5+ Nf6 g8R c1N g7 Rh7 Na3 Na6 b8B Rh4 Nc4 Qe8 Nf3 Rh5 Bd6+ Kd8 Nfd2 Nc7 Na5 Na6 Bc4 Rh7 Bb3 Nc7 Rh8 Rh4 g8R Bg7 Bf8 Na6 e7+ Kc7 d8B+ Kd7 e6+ Kd6 Nb7+ Ke5 d6 Rb4 d7 Nd5 Ba5 Nb8 d8B Ne2 b6 Nef4 Rh3 Qb5 e8Q Bd7 e7 Bg4 Rg1 h1B Rc3 Bh8 Re1+ Qe2+ Kg1 Bhf3 Rb1 a1N Rcc1 Bd7 Rg6 Bfg4 Rgc6 Ra7 Rc7 Ba4 Bc4 Nb3 Rf1 Nc5 Bb3 Ra8 Bh4 Ra6 Be1 Ncd7 Rf2 Qf3 Nd6 Rb5 Bc3+ Ke6 Rc6 Rc5 N2e4 Nf6 Bh6 Bg7 Qh8 Ra8 Rfb2 Raa5 Nd2 Rc4 Rc5 Qe2 Rc8 Bf8 e8R+ Be7 Rc5 Nc6 Bf8 Re4 Bb4 Ke5 Nb7 Rc4 Bc3+ Rd4 Rc4 Bb5 Ra4 Nb8 Raa1 Bbd7 Rba2 Rb5 Ba5 Rc4 Bg7 Bc6 Rg8 Ba3 Be7 Rd4 Rc8 Rdb4 Bgf8 Bcd7 R8c7 Be8 Qg8 Nfd7 Bg5 Na6 Qh7 Nab8 Qh8+
1B1k4/r3q1BR/3Q1qb1/1n1BbN1n/1B1Rb2b/pR2r1N1/1RP1R3/B1K3Q1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 h4 e5 b4 g5 f4 a5 h6 g4 b6 g3 b7 g2 f6 d4 c6 a4 f7+ Ke7 h5 d3 b5 a3 h7 e4 b6 Nd7 b8B Bb7 c7 Nc5 c8R Bd5 f5 Be6 f6+ Kd7 h6 Na6 b7 Nc5 Nc3 Qc7 Nd5 Qc6 Bb2 e3+ Kc1 e2 Ra2 e1B Re8 Ne4 Ne2 g1Q Ng3 Bfb4 f8Q Ra4 f7 Qgc5 Ne7 Ngf6 Ba1 Bd5 Rb2 Ra7 Rh4 Bbc3 Bg2 Be5 Nef5 Nd6 Rd4 Nb5 Qg8 Bf2 f8B Qe7 Qg1 Nh5 Qg6 Rg8 h8R Qcf6 h7 Be1 Qh6 Rg4 Bg7 Re4 Bd6 Re2 b8B Re3 Bb4 Bf2 Rhf8 Be1 h8R d2+ Kb1 d1B Kc1 Be2 Rh7 Bd3 Rg8 Qed6 Re6 B5e4 Rc8 Bf2 Rc3 Kd8 Rcb3 Qe7 Nh1 Bh4 Nhg3 Bb7 Bd5 Qa6 Rg6 Qaf6 Rgg4 Bc6 Rge4 Be8 Qf4 Bg6 Qh6 Rf3 Re2 Be4 Qd2 Re3 Qd3 Nc7 Qa6 Nb5 Qd6+
2qnNr2/1rBb1k1r/1Q4N1/1N1Rq3/2Q2n1p/P2BQK2/1R3N1Q/1r1Q1Nb1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 h5 g4 b5 d4 c5 f4 e5 a3 b4 d6 b3 f6 b2 d5 e4 a6 c4 f7+ Kd7 a7 c3 f5 h4 g6 e3 g7 c2 g5 Nc6 f6 Rb8 a8N Be7 f8N+ Ke8 g6 Qc7 f7+ Kd8 d7 Qg3 Rh2 Bg5 Nc7 Ke7 d6+ Kf6 d8Q+ Nce7 d7 Rb3 Nb5 Qb8 Nd2 b1Q Nh3 Bb7 Qe8 Nd5 d8Q+ Nge7 g8Q Qc8 g7 Rb4 Qb6+ Nc6 Nf2 Qb2 Kf3 e2 Qee3 e1R Ng6 Nf4 Bd3 Rh7 Nf1 Qe5 f8N Ba6 Ne6 Nd8 Bd2 c1R Nec7+ Rc6 Qa2 Bb7 Qb2 Kf7 Ne8 Ba8 Rc1 Rf6+ Rc6 Rb3 Ba5 Rf5 Qbe2 Be7 Rg2 Bc5 Qec2 Bb7 Qa2 Ba6 Rd6 Bb7+ Rd5 Bc6 Bb4 Bd4 Bd6 Bd7 Bc7 Rb2 Ng4 Rb1 Rb2 Re2 Nf2 Rc2 Bd6 Rc7 Qc4 Rb7 Qcc7 Ke6 g8Q+ Rff7 Qc4 Bc5 Qh8 Rf8 Bc7+ Kf7 Qhf6+ Kg8 Qg5 Kf7 Qg1 Bd4 Qh2 Bc5 Qee1 Bd4 Nh3 Bf2 Qee3 Bg1 Nf2
1B1rbB2/N1r2qn1/1N2nb2/kQ5p/1RP3q1/2bBB1RN/1N1b2N1/1K2B2Q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 a5 c4 h5 Kc2 e5 f4 d5 b4 Kd7 g4 Kc7 g6 e4 b6+ Kc6 b7 d4 f6 a4 f7 a3 b5+ Kc7 c6 Kb6 f5 a2 f6 e3 c7 e2 g7 e1B g5 Bc5 f8N Na6 b8B Ba5 f7 Qd5 g6 Bd6 Nc3 Rh6 Ne6 Qg5 f8B Qf6 Rb1 a1B Rb4 d3+ Kb1 d2 Nh3 Qe5 Bd3 Bb7 Rg1 Bh1 c8N+ Kb7 b6 Bc6 Na4 Qf6 Na7 Be7 Bg3 Rd8 Nb2 Nc7 Nef4 Ka6 b7 Qf7 b8B Rh7 Be1 Nf6 g8N Ne6 g7 Ne8 Ng2 Bf6 Ne7 Ba4 g8Q N8g7 Qh8 Be8 Nec8 Bc3 Qb3 d1Q Nb6 Qg4 Be3 Bd2 Nd1 Bf6 Nb2 Rh6 Qh7 Bdc3 Qe4 Rh7 Rf1 Bd2 Rf3 Bdc3 Rg3 Bd2 Rb5 Bac3 Rb4 Ka5 Qb7 Rh6 Qd1 Rg6 Qb3 Rg5 Qd1 Rc5 Qdf3 Rcc8 Qf1 Rc7 Qh1 Nc5 Qc6 Nce6 Qb5+
Bn2rR1K/n1N1B1B1/3r1qR1/2PRqk2/5R2/1p6/2rbBrQ1/3QNbBR b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 b5 a4 g5 h4 d5 c4 g4 f4 g3 c6 g2 h6 e6 c7 b4 c5 b3 h7 Be7 a6 Qd7 a5 Qd8 a7 Bf8 h5 Na6 h6 Bd6 Be2 Ne7 Nc3 Qe8 Nf3 g1Q+ Be3 Qf1 Ne1 Ng6 Bg1 Qf3 Nb5 Bb7 c8R Bc7 Ra4 Bc6 Rd8 Rf8 h8R Ne5 h7 Nb8 a6 Ba5 Nc7 Bd2 Rg8 Bb5 Rg3 Qe7 h8B+ Qg7 Rg2 Qf1 Rc4 Nec6+ Kd3 e5 Qb1 d4 Ke4 d3 Bd1 Nd7 Nc2 Be1 Rg6+ Ke7 f6+ Kf7 Kf5 Rc8 a8Q d2 a7 e4 Qb7 e3 a8B Na7 Qg2 e2 Kg5 Rg8 f5 Nb8 Rd3 Rcd8 Qa1 Rd6 Rd5 Re8 Rb4 Kf8 f7 Ke7 f8R Qe5 Kh6 Qf2 Kh7 Qh4+ Kg8 Qhf6 Rf4 Ba6 Nb4 Bc4 Nd3 Bb5 Bc2 d1R Bg7 Rd2 Bd1 Rc2 Kh8 Bd2 Qc1 e1R Bh5 Qfe6 Qd1 Rf1 Ne1 Rf2 Bf3 Bf1 Be2 Ra2 f6+ Kd7 f7 Q6f6 Rg8 Rb2 f8B Rc2 Nb5 Ke6 Be7 Rf3 Rf8 Rf2 Rb4 Kf5 Nc7 Bg5 Ra4 Bd2 Rf4+
3Rnr2/1kR5/qp2qBb1/2rNQN2/1R5Q/1R2N1bK/nNqNPq2/R6B b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 g5 d4 c5 h4 Kc7 a4 f5 d6+ Kc6 d5+ Kd7 a6 f4+ Kh3 c4 a7 c3 e6+ Ke8 a5 b6 d7+ Ke7 h6 Kd6 e7 Kc7 e8N+ Kb7 d6 f3 h5 c2 a6+ Kc6 h7 f2 h6 Ne7 Qe1 Nf5 Ng7 Qc7 d8R Ng3+ d7 Ne4 Nd2 Bd6 Nf5 Be5 Nc4 Bb7 Nb2 Rf8 h8R Bh2 h7 Bg3 Rc8 Nf6 d8R Ne8 Nf3 Rf6 Rg1 Rf8 Bg2 f1Q Nd2+ Qf3 Bh1 Qd5 Rg2 Qe4 Rd3 Qe6 Rcd8 Qcc8 Rb3 Kc7 Rf2 Bd5 Rf4 Nc6 Rfb4 Be4 Rg8 Qb7 h8Q Rc8 a8N+ Kb8 Nc7 Bd3 Rba4 Nb4 Nd5 Na2 a7+ Ka8 Qc3 Qa6 Rab4 Kb7 a8N Rc5 Nac7 Be4 Rg7 Bd3 Qe5 g4+ Kg2 Be4+ Nf3 Bd3 Bg5 c1Q Nde3 Qc2 Bf6 Be4 Nd4 Bg6 Nd2 Bf2 Ndf5 g3 Kh3+ g2 Rf7 Bg3 Rh7 Kc6 Ncd5 g1Q Qf2 Qe1 Qff4 Qg1 Qh4 Qf2 Rh5 Kb7 Rg5 Qad3 Rgg4 Qa6 Rgc4 Rb5 Rcc8 Rc5 Rc7+
5KRR/P1r3R1/N2RB1N1/r1RNNbkb/2Nnn2b/q2p2Q1/1q2Q3/4b1B1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 b5 Kd5 g5 f4 e5 c4 e4 h4 b4 a4 e3 h6 g4 h7 b3 h5 b2 h6 g3 c6 d6 c5 e2 c7 e1Q c6 g2 a6 Qe2 a7 Qde8 a5 Qf2 a6 Nd7 Nd2 b1B Qe2 Nc5 Ngf3 g1B Ne5 Qd8 Ndc4 Ne4 Be3 Bg7 Bh3 Rb8 a8N Bh2 a7 Rb2 Ra6 Bd7 c8R Ng5 c7 Qh4 Bg1 Ke7 f6+ Ke8 f5 Bg3 f7+ Ke7 f8N Kf6 Nfg6 Ne6 Ne7 Kg5 f6 Bc2 f7 Bf6 f8N Nd4 Be6 Bf5 Nfg6 Be1 Rb8 Rc2 c8R Qh3 Rc5 Qb6 Nc7 Qg3 Rh4 Qb2 Rg4+ Kh5 Rab6 Qga3 Na6 Bfh4 Rf8 Be8 Rf7 Nf3 Rg7 Bf7 Kc6 d5 Kd7 d4 Rd6 d3 Nd5 Nf6+ Ke7 Nd4 Rg8 Rc1 Rg7 Rc8 h8Q Ra1 h7 Rc7+ Kf8 Ne4 Qg8 Be8 Rf4+ Kg5 h8R Qab3 Rf1 Ra5 Rf2 Q3a3 Rg2+ Bg4 Qf7 Bd7 Qff3 Bc8 Qg3 Bd7 Bg8 Bf5 Be6 Qba1 Rgg8 Q1b2 Qgf3 Bhg3 Qff2 Bh5 Ngf4+ Kh4 Qfe3 Bgf2 R2g7 Bg3 Q3f3 Bgf2 Nfg6+ Kg5 Qh3 Bh4 Qg3+
1qNn3B/pB5n/1NB1Q1Q1/bb4bK/2q1N2R/PbbBN2r/k7/5BRN b - - 0 1 legal: proof: g4 d5 b4 g5 e4 c5 exd5 b5 bxc5 f5 gxf5 g4 h4 Na6 Bb2 Rb8 Bc1 Rb6 Ke2 Rg6 Ke1 Rg5 hxg5 Qd6 Ke2 Qb6 Ke1 Qd8 Ke2 Kd7 f4 e5 c4 h5 d4 h4 f6 b4 d6 Ke6 a3 b3 f5+ Kd7 c6+ Ke8 c7 Kd7 c5 Kc6 d5+ Kb5 g6 Kc4 g7 h3 c6 e4 d7 e3 f7 b2 f6 h2 d6 g3 Kf3+ e2 Kg4 g2 Qc2+ Kb5 Nd2 b1Q Nh3 g1B Nc4 e1B Bb2 Rh6 Ne3+ Ka5 Qg6 Ka4 Nf2 Bb7 c8B Kb3 c7 Ne7 g8B Qc2 Bh7 Be4 Bb7 Bg2 c8B Bc3 Bc6 Be4 B8b7 Qb8 d8N Bd5 d7 Nc7 Ne6 Na8 d8N Rh3 Ng5 Ba5 Nge4 Bh6 f8Q Nb6 f7 Qc4 Qfg8 Nd7 f8N Bg5 Bh8 Bc3 Rd1 Ka2 Nf7 Ba5 Nd6 Bf7 Bd5 Nc6 Nc8 Nd8 Bdc6 Be8 Q8e6 Nf6+ Kf5 Bf7 Nd7 Bc3 Ndb6 Be8 Bd5 Bb5 Bdc6 Ba5 Ng3 Bc3 Nfe4 Bf2 Rd4 Bfe1 Rg1 Ba5 Nh1 Bec3 Bg8 Nh7 Kg4 Rg3+ Kh5 Rf3 Nhg3 h1B Bd3 Bg2 Nh1 Bf1 Bf7 Be2 Bfe8 Bd1 Bed7 Ba6 Bb5 Bb3 Bdc6 Rg3 Nf6 Rh3+ Rh4 Qc5 Bbc4 Bb5 Ne4 Qd5 Bf1 Qd4 Bce2 Qc4 Bd3
1N2b3/1QB2Nk1/3qRp1n/2NN1BqR/3b3n/b1R2P2/2nN1rRR/2Q1b1K1 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 h5 cxd5 b4 gxh5 b3 d6 Kd7 axb3 Rh6 b4 Ke8 b5 Rh8 d4 Kd7 e5 Ke6 d7 a5 d5+ Kf5 Bc4 Ra6 Bf1 Rd6 exd6 Kf6 h4 c5 b4 e5 h6 g5 h7 e4 h5 a4 f3 a3 Kf2 c4 b6 c3 b7 c2 b5 g4 b6 a2 h6 Kg6 Bf4 c1N Bd3 f6 Ne2 g3+ Kg1 g2 Rh5 Qc7 d8N Na6 b8Q Be7 d7 Qc4 d6 Qc2 b7 Qc6 Nec3 Qb5 Nd5 Nb4 Ne6 Qa6 d8N Nb3 d7 Qd6 Qc1 Nc2 Nc5 Nbd4 Nd2 Nf5 Nf7 e3 d8R e2 Re8 e1B Qa7 Be6 b8N Bd7 Qb7 Bc6 Rb1 a1B Rb3 Be5 Rc3 Bd4+ Ne3 Bf8 Re6 Be8 Be5 Qd8 Bc7 Qd6 Bb5 Nh4 Bd7 Ne7 Bc8 Nef5 Bd7 Rg8 h8R Be7 h7 Nh6 Ree5 Kg7 Bf5 Bb5 Re6 Rc8 Rf8 Be8 Nbd7 Ra8 h8R Ra2 Nb8 Na3 Ndb3 Rf2 Nd2 Nc2 Nd5 Qa6 Nd3 Ba3 Nc5 Qd6 Re2 Bd7 Rfe8 Bb5 R8e6 Be8 Rh7+ Kg8 Rg7+ Kf8 Rg3 Rf1+ Kh2 g1Q+ Kh3 Qe3 Rh2 Qg5 Rg1 Kg7 Rg3 Ng6 Kg2 Rf2+ Kg1 Nh4 Rgg2
4N1BK/1kBB1p2/2B3b1/2RQ1nBN/1b1N4/n1NR1PN1/1b3b1q/1Q1br1b1 b - - 0 1 illegal: No possible last move, all moves rejected
1BR3K1/3n3R/QQp1BR2/P6r/1nR1Q1b1/pRq1n3/3r1bQ1/rN3QNk b - - 0 1 illegal: No possible last move, all moves rejected
1BR1R2n/2r1rBNr/PQB1p2p/KRB2kB1/5q2/2n2n2/1bb1Q3/R2R1N2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 c5 Kc3 b5 f4 c4 Kb4 e6+ d6 h6 g4 c3 a4 c2 g6+ Kf6 g7 Ba6 g5+ Kf7 f6 Kg6 d5 Qe8 f7 Rh7 Nd2 Qc6 Nh3 Qc7 Bg2 Bc8 a6 Qb6 a5 Qc7 a7 Qb6 a6 Be7 f8R Qc6 Nf1 Qc7 Qe2 Qd8 Re8 Bf8 f5+ Kf7 g6+ Kf6 Bf4 Qe7 Ka5 c1R d7 b4 d8B b3 d6 b2 d7 b1N Bc6 Nc3 Bg3 Rb1 Nf4 Rb7 Nh5+ Kg5 f6 Kf5 f7 Qh4 Bg5 Ba3 d8Q Ne7 g8R Bd7 f8B Bb2 g7 Qf4 Qb6 Ng6 Bc5 Nh8 Rc8 Rc7 Rge8 Qc4 g8B Qf4 Nd2 Re7 Rhd1 Rh7 Nf1 Re7 Bd5 Ba4 Bf7 Bc2 Bc6 Nd7 Bh2 Rb8 a8R Rbb7 Rab8 Ne5 Qb3 Ra7 Rb5 Nf3 Qb4 Qc1 Bhd6 Qf4 Qd4 Rcb7 Bb8 Rbc7 Qd8 Rcd7 Qb6 Rac7 Bg8 Rh7 Bf7 Re7 Ng7+
2b1RN2/Nppnrr1R/1QN2qR1/B1Rb1b1B/5kN1/1P3Q2/n5R1/3K1Nn1 b - - 0 1 illegal: No proof kernel
1Q3b1r/p1r4r/Q1B2n2/B2q1N2/Nb3RpQ/2BP1b2/1nQK1B2/1RQB2k1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 h4 c5 e4 g5 e6+ Kd6 e7 Ke5 e8B Kf4 d3+ Kg3 e5 f5 e6 g4 b6 c4 b7 c3 d6 c2 d7 f4 h6 f3 h7 f2+ Kd2 Na6 b8Q+ Qc7 d8B Bc5 h5 Qe5 e7 Nh6 b5 Be6 b6 Bc4 b7 Qd6 Ne2+ Kf3 Nd4+ Kg3 Qc8 Qb8 Nf5+ Kf4 Be2 f1R Ra4 Ba3 Bc6 Bb4+ Nc3 Qe5 e8Q Qd5 Ba5 Nc5 Qee6 Ng8 h6 Nf6 Qe1 Rf3 Bd1 Rh3 Q6e2 Rh2 Qe6 Rhc8 h8Q Rc7 b8Q Ba6 h7 Bb7 Qhc8 Rh3 h8B Rh7 Ra3 Na4 Qh4 Nb2 Ra4 Nh5 Bd4 Nf6 Qee1 Bf8 Bf2+ Bb4 Ra1 Bf8 Rf1 Bb4 Rb1 Bf8 Ne2+ Kf3 Nc3+ Kg2 Na4 Bb4+ Ke2 Bf8 Bcd2 c1B Bdc3 Be3 Qd2 Bec5 Qc1 Bb4 Kd2 Ba3 Be1 Bab4 Rf4 Kg1 Bg3 Qe5 Qb3 Qd5 Qbc2 Qd4 Be8 Bf3 Bc6 Qd5 Qa6 Bfd6 Qbb7 Rah8 Qb8 Bf8 Bf2+
1B1b4/1N1B4/k3pN1q/R6R/nBq5/3Rrn1p/q1R1bKBP/r1BQR1Q1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 exd5 c3 bxc3 Bh6 c4 Bg7 c5 Bf8 g4 Kd7 c4 Kc7 d4 Kb7 c6+ Kb6 g6 a5 g7 f5 d6 h5 c5+ Ka7 c7 h4 c6 h3 d7 e6 g5 a4 d5 f4 d6 a3 g6 a2 Bg2 f3 b6+ Ka6 b7 Rh6 Nd2 Qe8 d8B Kb6 d7 Rh5 Be7 Rha5 d8R R5a6 Ne4 R6a7 Nd6 Na6 b8B Nh6 g8Q Nc5 g7 Qg6 Nb7 Na4 Bb4 Be7 Kf2 Ka6 Rd3 Nf5 Ne2 Qh6 Nc3 Nh4 Nd5 Bd8 Nf6 Bd7 c8R Be8 c7 Bh5 Rb1 a1Q Re1 Qa2+ Rb2 Bg4 Rc2 Bh5 Qf8 Bg4 g8R Bh5 Rg5 Bg4 Kf1 f2 Qg7 Nf3 Ke2 f1Q+ Ke3 Be7 Rh8 Bd8 c8B Bh5 Bd7 Bg4 Rd5 Qfc4 Kf2 Bh5 Rd3 Bg4 Nd6 Rb7 Rh7 Rb5 Nb7 Re5 Qg6 Re3 Re5 Ng5 Rf5 Be2 Rc5 Nf3 Qg5 Qf8 Rh5 Qh6 Ra5+ Kb6 Rdd2 Nc5 Bh1 Qb2 Ra2 Ra4 Qg4 Ka6 Qg1 Raa3 Bg2 Qbb3 Rab2 Ra1 Rd3 Qa4 Rbb3 Qa2 Rdd5 Na4 Rbd3 Qc3 Rde5 Qcc4 Ra5+
KBBk2N1/bB2R3/2bpNNq1/4b2B/1N1r1qQ1/1B4NP/2n2p1R/1n1rQ3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 Kd3 g5 Kd4 f5 Kd5 f4 b4 g4 e4 f3 c4 f2 h6 a4 e6 g3 h7 a3 b6 a2 h3 g2 e7 Ra4 c6 Bg7 c5 Ra3 e5 Rb3 b5 Bb7 Nc3 Ba6 c7 Bf8 c8B Bh6 c6 Bf4 b7 Rb1 b6 Bb5 c7 Bg5 Rh2 Be3 Ne4 Na6 b8N Rb4 b7 Bb6 Nc6 Ba4 b8N Ba5 Nf3 g1B Bb7 Rb6 c8B Bb3+ Bc4 Ba4 Nb4 Bc2 N8c6 Qc7 Ng3 Ba4 Nfd4 Bb5 Rb1 a1Q Ne6 d6 Qg4 Qa4 Be3 Qd8 Re1 Nf6+ Kd4 Qd7 Bb3 Ne4 Kd5 Nd2 Bd4 Rf8 h8Q Nb1 Qh6 Rf5 Qd2 Rf4 Bc5 Rc4 Re3 Rc1 Qe1 Rd1+ Bd4 Qa2 Re4 Qc2 Re3 Qg6 Re2 Kf7 e8N Qc7 Ne7 Qc1 Re4 Qf4 Nf6 Bd7 Neg8 Bc6+ Kc4 Rb5 Ba7 Bb6 Bb8 Bd4 Re3 Ra5 Re2 Ra2 Re4 Rad2 Re3 Ba7+ Re4 Bd5+ Kb5 Rd4 Ka5 Bc6 Re2 Nc7 Re3 Nb5 Ka6 N5a3 Re2 Nc2 Re4 Bb6 Re2 Ba5 Ka7 Bb6+ Ka8 Bc5 Nd8+ Kf8 e6 Ba7 e7+ Kg7 e8B Kf8 Rh1 Bh2 Re7 Qf3 Nge4 Be5 Ng3 Qf4 Rh2 Qg7 Bh5 Qgg5 Rg7 Qg6 Nd7+ Ke8 Ne6 R4d3 Nec5 Kd8 Ndf6 R3d2 Re7 Rd4 Ne6#
2rbr1b1/4b1pn/N1BnPB2/NQ1NNq1Q/Q5qR/pQ6/1R1Q3K/N1k5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg2 c5 b4 f5 d4 a5 e4 c4 h4 f4 h6 f3+ Kh2 f2 h5 a4 h7 a3 h6 c3 b6 c2 e6+ Kd6 b5 Ra4 e5+ Ke7 b7 Rb4 d6+ Ke8 e7 Kd7 e8N Ke6 d5+ Kf5 b6 Ke4 d7 Qg5 d8N Na6 b8Q Qd2 e6 Ke3 d6 Be7 d7 Re4 b7 Nc5 Nf3 Bh4 Nc6 Na4 d8Q Rf4 Bb2 c1B Bf6 Re4 Nc7 Qd6+ Nfe5 Rc4 Bg2 f1Q Na5 Nc3 Bc6 Qb4 Qb3 Bd7 Ra2 Qf5 Rb2 Be8 Nd2 Bf7 Nd5+ Ke2 Qa8 Nb5 b8N Nd6 Na6 Rc5 Qab8 Qbg4 Q8b5+ Rc4 Q3a4 Bg5 Ndb3+ Bcd2 Rbb1 Bb4 Na1 Kd2 Rb2+ Rc2 Qdb8 Bc5 Qbb3 Bb4 Qbb5 Bc5 Be7 Nf6 Bd8 Rf8 h8Q Nh7 Bf6 Re8 Qf8 Bh4 Qe7 Bg8 Qd8 Ne4 Qd7 Be7 Qd8 Nd6 Qd7 Nf8 h7 Bd8 h8Q Nh7 Re1 Bg5 Re3 Be7 Rh3 Bd8 Rh4 Be7 Qa7 Kc1+ Qf2 Rc5 Ba8 Rcc8 Bc6 Be3 Qfe2 Bb6 Qf2 Bbd8 Qfe2 Ng5 Qh5 Nh7 Qd2#
n2Q1Q2/1pN5/2Q1b1qR/KPR1bRB1/1p1r1QqR/N2B3Q/5r2/kn1Rq3 b - - 0 1 illegal: Other
RR4B1/2qrkN1n/BR4R1/1BN5/bRpPQ3/BnbnK3/1n4p1/4Q1Br b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 f5 e4 g5 b4 a5 h4 c5 d6 a4 e6 a3 e5 f4 b6 a2 b5 f3 e7 g4 d7+ Kf7 e8B+ Ke6 b7 g3+ Ke3 f2 h6 g2 h7 Be7 b6 Ra5 h5 Nf6 h6 Ng8 Ba3 Rb5 Bf7+ Kf5 e6 Kf6 Nf3 Qf8 d8B Na6 b8R Qe8 b7 Nc7 Ng5 Rb4 Rh4 Qb5 Nc3 Rb1 Na4 Qc6 Rb4 Bd7 Ba6 c4 Qe1 Rd1 Nc5 Qd6 Ra8 Ba4 Rab1 a1N b8R Nb3 d3 Nc1 R1b2 Nb5 Bb6 Nd4 Rb1 Bf8 e7 Bg7 e8B Ndb3 Beb5 Ke7 Bd5 Qd8 Nf7 Bc3 Ba7 Nf6 Rb6 Rg8 h8Q Rg7 Qh7 Qc7 Qg6 Nh7 Qe4+ Qe5 Rg6 f1N+ Kf3 Ne3 Be6 Nf8 h7 Qc7 h8R Rh7 Kf2 Rh1 Rhg8 Nh7 Rgb8 Rd2+ Kf3 Nd1 Rb6 Nb2 Ke3 Rf1 d4 Rdf2 Bb8 Rh1 Bd5+ Qe5 Bc7 Ncd3 Be6 Qg7 Bh2 Qe5 Bg1 Qc7 Nh8 Rf6 Bg8+ Re6 Nf7 Re5 Ne6 Rd5 Nc5+ Qe5 Rbb8 Na5 Rb3 Rd7 Bc6 Nd1+ Ke2 Rh6 R3b7 Rh1 R1b4 Nb3 Bcb5 N1b2 Rbb6 Nf2 Ne6 Nfd3 Ke3 Qc7 Nc5+
k3NQB1/1n1R4/3Q1pn1/1rB1pnPb/nrQQQ1Bq/R2K3B/5B2/6bN b - - 0 1 illegal: No proof kernel
1nnB1b2/1N1Bn1pk/Nr6/1PB1R2N/4B1bp/2q1Q1n1/r2BQR2/N1NK4 b - - 0 1 illegal: No proof kernel
R1N1N3/RrQkN2B/q1n1N2r/2B1RQRp/3b4/4p1r1/1bN2p1P/2R3nK b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 e4 Qd6 d4 Bg7 e5 Qd8 d6 Kf8 d5 Bd7 e6 Bh6 exd7 Kg7 Ne2 Kg6 Ng1 Bf8 Kf2 Kf5 b4 c5 g4+ Ke5 Kg2 a5 g6 h5 g5 f5 g7 e6 g6 c4 b6 f4 b5 a4 b7 c3 b6 c2 Ne2 a3 Nd4 a2 Nd2 Rh6 Qf3 Ne7 g8N Ra6 g7 Ng6 Ne7 Ra3 g8R Na6 b8R Kf6 b7 e5 Ra8 e4 b8R e3 Bd3 Ke5 Nc8 Qf6 d8N Rh7 d7 Qf7 d6 Qc4 N8e6 Nb4 d8Q Bg7 d7 Qa6 Ne4 Rh6 Nf6 Nc6 Ne8 Rb3 Ba3 c1B Bc5 Bb2 Nc2 Rb7 Rhc1 Nh4+ Kh1 Bd4 Qh3 f3 Bh7 f2 Qc7+ Kd5 d8N Nf3 Ra7 Ng1 Rba8 Bb2 Rab1 a1R Qf5+ Bge5 Rg4 Ra4 Rg5 Rg4 Ra1 Rg3 Ra2 Kc4 Ra4+ Kb5 Re4 Bed4 Re5 Qa1 Nf4 Qa6 Nde6 Ne7 Qa5+ Kc6 Nd5 Kd7 Qb6 Nc6 Nde7 Rg2 Qa5 Rg3 Qc7+
2KbN1r1/1n2B1NN/1p4BN/3rQp2/1BR1pR2/1B4q1/nk2PN2/1nbQB3 b - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 a5 b4 Nc6 bxa5 Ne5 f4 Bd7 fxg5 Bc8 h4 Bf5 h5 Bg6 hxg6 Nc6 Rh2 Nb8 Rh6 Nf6 Rh1 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 Kf5 Kb4 a4 c5 d4 e5 a6 h5 d6 c4 a7 h4 g7 f6 Ke6 b6 d5 e4 d7 h3 a5 c3 d6 h2 g6 c2 g5 Kb3 a6 Rh5 Ba3 Rh8 Nh3 Be7 Nd2+ Kc3 Bb4+ Kb2 Rc1 Rh6 Nc4+ Kb3 Nf2 Rh8 Bh3 Rh5 Bf5 Rh7 Rf1 h1N Ne3 Qf8 d8B Rh5 d7 Bc5 Be7 Bd6 d8B Nc6 Kd7 Rb8 a8N Na7 Nc7 Kb2 Ne8 Nh6 g8N Be5 g7 Ka2 g6 Nb5 a7 Ng3 a8Q+ Kb2 Qa5 Nf7 Nh6 Nfd6 g8N Nb7 g7 Nc3 Bg6 Na2 Nef5 Bc7 Be1 Rg5 B7b4 Rc8 Bde7 Bd8 Qb5 Qf7 Qc5 Qb3 Qcd6 Rc5 Qb8 Rd5+ Kc8 Nh5 Qc7 Nf4 Qd6 Qg3 Qe5+ Nc3 Nh1 Nd3 Rf4 Rg4 Nf2 Rg5 Nfd6 f5 Ngf6 Rg4 g8B Rg5 Nh7 Rg4 Ra1 Nc1 Ra4 Na2 Ng7 c1B Nde8 Rg5 Qe6 Nb1 Qe5+ Rd4 Bb3 Rg4 Qc7 Rd5 Qe5+ Nac3 Bbc5 Rd6 Bh5 Be3 Rc4 Bc1 Ne6 Rg8 Bg6 Rd4 Bb4 Rd5 Qd6 Na2 N6g7 Re5 Qb8 Rd5 Qe5+
2b2k2/2q5/Pr1B1Q2/Qpp2N1p/Rb2R2B/1N2r2R/nbR1B1B1/BRnK4 b - - 0 1 illegal: No possible last move
7N/1b2Kp1Q/2Qp1BP1/2r1NN1B/2n3Br/1Bp2BbR/R3n1NN/2n2k1q b - - 0 1 illegal: No possible last move
qnQ3BR/Rp1N3Q/1k1NnpKp/8/2PB4/3Q3Q/3bb1BB/BnrQr3 b - - 0 1 illegal: No proof kernel
2rRQBQn/1RNpK3/1nRP3q/r1R1N3/R7/p2n1pQ1/1bQ2r2/1k3BQ1 b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 a4 Ba6 axb5 Bc8 gxh5 Ke7 b4 Ba6 c4 Rh6 c5 Rc6 b6 Ke8 b5 Rh6 c6 Bb7 cxb7 Rh8 Kf2 Ke7 Kg3 Ke6 Kg4 Kd5 Kf5 Kc4 h4 g5 d4 a5 e4+ Kb4 h6 c5 h5 a4 e6 f6 e5 g4 d5 g3 h7 c4 e7 c3 e8R g2 e6 c2 e7 Kb3 h6 Ra7 Nc3 Qc8 Rh5 Qd8 Ba3 Ra6 Nf3 g1N Ne5 Nc6 b8R Ra5 b7 Nh3 b6 Nb4 Nb5 Nc6 Rc8 Nf2 b8Q Nd3 b7 Bg7 Nc7 Na7 Qg4 c1R Qg1 Kc2 Kg6 f5 Kf7 f4 Rf8 f3 e8Q Nf6 Rg5 Rg8 h8Q Re1 h7 Nh5 Rg6 Re4 Rc6+ Rc4 Be7 Nhf4 d6 Bf6 Qhg7 Ng6 h8Q Kb2 Ra3 Rc2 Qhh2 Kb1 Qgh7 Rg2 Qg3 Rf2 Qa8 Rh8 Rg8 Bg7 Bf8 Qg5 Rd8 Nc8 b8R+ Nb6 Rb7 Qh4 Rac3 a3 R3c5 Qg5 Qc8 Bf6 Rg7 Qh6 Qg8 Ne7 Rg4 Ng6 Ra4 Bg7 Ng4 Bd4 Ne5 Bb2 Qh7 Rg8 Kf6 Nh8+ Ke7 Rg4 Qa8 Rb4 Qhg8 Rbb5 Qb8 Ra8 Qa7 Rc8 Qa6 Ra5 Qac4 Qh2 Qc3 Qh6 Qc2+
q1QbN1R1/3N1R1K/pp2k2p/1PQ5/Bn3N1R/bqB4R/5N1R/1nrb1N2 b - - 0 1 legal: proof: e4 d5 c4 f5 exf5 g5 cxd5 g4 a4 g3 a5 b6 a6 Bd7 hxg3 Bc8 g4 Nc6 g5 Rb8 Rh4 Rb7 axb7 Nb8 Rh5 Qd6 Rh1 Qd8 Ke2 Kd7 Ke3 c5 Ke4 e5 f4 c4 g4 h6 b4 c3 d4 a6 d6 c2 d5 Nc6 b8Q Nge7 f6 Na5 f5 Nb3 g6 Qe8 g5 Rg8 g7 Rh8 g8N Qg6 f7 Na5 Qh5 Qf6 g6 Nec6 g7 Nd8 Ra4 Nc4 Nh3 Qg6 Bd2 c1B Bc3 Qh7 Nf2 Bg5 Rh2 Bh4 Nd2 Nb2 Bb5+ Nc6 Nf1 Nd3 Nf6+ Kd8 g8R Qg7 d7 Ke7 d8R Nd4 Ne8 Bd7 Qc8 Nc2 Ra3 Nb2 Ba4 Qg3 b5 Nd3 Rg4 Bf6 Rgh4 Ndb4 Rb3 Na3 Qg5 Bg7 f8N Nb1 d6+ Kf7 Ng6 Bf8 Nf4 Be6 Ra3 Bb3 d7 Bd1 Rb3 B6e7 f6 Qe3+ Kf5 e4 Qg1 Qf3 Qg5 e3 Ra3 e2 Qh5+ Kg8 Kg6 e1Q Qhc5 Qa8 Rb3 Qe3 Ra3 Bg7 f7+ Kf8 Rb3 Bf6 Ra3 Rg8+ Kh7 Bd6 Rb3 Ke7 f8N Rg2 Ba1 Qe6 Rbh3 Qb3 Bc3 Rg1 Qb7 Nd5 Rc8 Bg5 Rc7 Nb4 Qc8 Kf7 d8R+ Bde7 N4g6 Bc1 Nd7 Ba3 Nf4 Bf6 Ng7 Bg5 Rg8 Bd8 Ne8 Rh1 Ng6 Ke6 Rb7 Rg1 Ra7 Rh1 Nf4+ Kf7 Ne3 Bh5 Rb7 Rc1 Nf1 Bf3 Rc7 Be2 Rc6 Bd1 Rd6 Ke7 Rd5+ Kf7 Rf5+ Bf6 N4d3 Ke6 Rff4 Bg5 Rf7 Bd8 Nf4+
k2nKn2/2q3RB/r2Q1R1Q/B2q1pQp/6R1/rp1N3p/3R1PQ1/1b2NR1Q b - - 0 1 illegal: Other
1B1Q3r/2Q1RQ2/q1RBKRqQ/1nPn3R/kN4p1/1NRB3q/4p3/8 b - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 a4 a5 axb5 c5 bxc5 e6 e4 a4 exf5 a3 d4 Ba6 bxa6 Ra7 Qf3 Rb7 Qd1 Rb6 cxb6 Bc5 dxc5 a2 Ke2 g5 Ke3 d5 Kd4 Kd7 Ke5 Kc6 c4 g4 h4 d4 f4 d3 a7 d2 a8R Rh6 f6 Qe8 f7 Rf6 f8Q Qd8 f5 Na6 h6 Nb8 b7 Qe7 h7 Qe8 h8Q Rh6 f6 Qe7 h5 Qe8 f7 Nf6 Ra7 Ng8 Nf3 Ne7 Na3 Rg6 h6 Rg7 h7 Ng8 Rh6 Qd7 Nd4+ Kc7 c6 Kb6 c5+ Kc7 Nb3 Na6 Bd3 Nf6 Nc2 Rg8 Nb4 Nd5 Qf6 Qc8 h8R Qe8 Qdf1 d1Q Bf4 Qd2 Rc1 a1Q+ Rc3 Qh2 Qg5 Qh3 b8B+ Kc8 c7 Kd7 c8R+ Nac7 Rf6 Qa6 Rh5 Rh8 Qfh6 Qg8 f8Q Qg6 Ra8 Nb5 Rc6 Qe8 Qfg7+ Qf7 Ke4 e5 Kf5 e4 Bfd6 e3 Qf2 e2 Ra7+ Ke8 Qgh7 Qg6+ Ke6 Kd8 Qf1 Ke8 Re7+ Kd8 Bdc7+ Kc8 Qh4 Kb7 Bd6+ Ka8 Rf7 Qg8 Rf4 Qa7 Bdc7 Kb7 Qd8 Qa1 Qf3 Qa8 Qg3 Qg6+ R4f6 Qa4 Re7 Qa7 Na2 Qb6 Qf7 Ka6 Nd4 Ka5 Nb3+ Ka4 Nb4 Qa6 Qgd6 Rh7 Q6d7 Rh8 Bd6 Re8 Qa7 Rh8 Qac7
Qkq1n2r/5KBr/R5nq/2B3B1/1r1qQ1Nr/1B3N2/P3BQ1R/2N1Q3 b - - 0 1 legal: proof: e4 d5 b4 f5 exf5 a5 bxa5 h5 g4 d4 gxh5 d3 cxd3 e6 d4 b6 a6 Ba3 Nxa3 Ne7 d5 Bd7 Nb1 Ba4 Qe2 Bd1 Qxd1 Ng8 Ke2 Kd7 Kd3 Kc8 Kd4 c5+ Ke5 g5 d4 b5 f4 b4 h4 g4 f6 g3 f5 g2 a7 b3 h6 c4 d6 c3 d7+ Kb7 f7 b2 f8B c2 f6 Ne7 d5 Na6 h5 Nb8 d6 Nc8 f7 Qh4 d8N+ Kb6 h7 Qe7 h6 Qc7 Kf6 e5 d7 e4 Be2 e3 Bc5+ Ka5 f8Q Na6 Nd2 b1R Qe1 Qc6+ Kf7 Rb2 Ndf3+ Rb4 Rh2 Rb8 a8B Qc7 Rb1 Rb6 Bd5 Rb7 Bb3 Ne7 Qe8 Ng6 Qe4 Qc8 Rb2 Rg8 h8Q Nc7 h7 Ne8 Qf6 Rh8 Qfh4 Ra7 Qhf2 Rc7 Bd2 c1Q Bc3 Rb7 Bg7 Ra7 Rc2 Qd2 Rc4 Ka6 Nc6 Kb7 Nce5+ Kb8 Ng4 Raa4 d8B Qd4 Nh3 g1Q Nf4 Qh1 Nd3 Ra7+ Bde7 Rab7 Nc1 Rd7 Rg2 Qh6 Rh2 Rc7 Bb6 Rd7 Rc6 Rb7 Bc5 Rd7 Bed1 e2 Ra6 Ra7 Qd2 e1R Be2 Rh1 Qde1 Rg8 h8Q Rab7 Rg2 Rh4 Rh2 Rd7 Qh7 Rh8 Qg8 Rd5 Qf8 Rdh5 Bd8 Qhd2 Bdf6 R5h7 Bfe7 Qh6 Bg5 Nc7 Qd8 Ne8 Qdd5 Qc3 Qc6 Qd4 Qa8+
BkR5/2N3R1/P2prR2/2r3Q1/KB4QB/Nn4Q1/Rrb1nR2/2n2Q1b b - - 0 1 legal: proof: g4 a5 d4 c5 dxc5 f5 f4 g5 fxg5 f4 e4 e6 b4 f3 bxa5 Qe7 h4 Bg7 h5 Kd8 g6 Ke8 h6 Qg5 hxg7 Qd8 g5 f2+ Ke2 Nc6 Bh3 f1B+ Ke1 Nb8 Bg2 Be2 Bh3 Bg4 Bf1 Bf5 exf5 Qb6 Rh3 Qc7 Rh1 Qd8 Kd2 b5 Kc3 h5 Kb4 e5 a4 h4 c4 e4 a6 h3 a5 e3 f6 e2 c6 e1R f7+ Ke7 f8B+ Ke8 a7 h2 c7 Rh6 c5 Rh8 c6 Rh6 a6 Re5 Nf3 Bb7 c8R Re4+ Nd4 Rh3 c7 Rd3 Na3 Rh3 Ra2 Nf6 g8R Rh5 g7 Re6 g6 Ne4 Bg5 Nc3 Bg2 Ne2 Rf1 h1N Rf6 Nhg3 Qf1 Nc1 Bh4 Rc5 Ka5 b4+ Ndb5 b3 Ka4 Nc6 Raf2 Rb8 a8R b2 Ra7 b1B Rh8 Rh5 g8Q Na2 g7 Rc5 Rh5 Nc1 Re5 Rc2 Ree2 Rc5 Ra2 Na5 Bh1 Bc6 Be4 Rb6 Rb8 Bd3 c8Q Nge2 Qc7 Bb7 Qg3 Qc8 Nc7+ Kd8 Rba8 Rb2 Qg5 Rec6 Qb3 Rd6 g8Q Re6 Qc3 Bb1 Qcg3 Nab3 Q5g4 Bc2 Q8g5 Rf5 Bb4 d6 Ne8 Bd5 Rg7 Bb7 Nc7 Rc5 Bh7 Bh1 Be4 Rd5 Rgg6 Kd7 Rg7+ Kc6 Bf3 Kb6 Rb8+ Ka7 Bg2 Rc5 Ba8 Qb7 Rbf8 Qc8 Rd8 Kb8 Rxc8+
n2B4/rB3Q1r/1kR2r2/Nq1q1QB1/Q2nB2p/1Q1R4/1nP3B1/2KN3N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 b4 Bh6 c6 Bb7 cxb7 Bf8 b6 Nc6 b8B Bg7 b7 Bb2 Rh2 Bd4 Rh1 Bc5 bxc5 Qb6 Rh6 Qc7 Rh1 Qd8 Kd2 a5 f4 d5 g4 Kd7 g6 e5 g5 h5 g7 d4 f6 e4 f5 a4 g6 d3 f7 h4 f8Q a3 f6 a2 f7 Qf6 Nc3 Qf2+ Nge2 Rh7 Rh3 Qd4 Ng3 Qg1 Bg2 Nd8 c6+ Ke6 c7 Kd7 c8B+ Kc6 Nh1 Qb6 Bc7 Qd4 Qg4 Ra5 Nd1 Ra7 b8N+ Kb5 Bb7 Qd5 Nc6 Nf6 g8B Ne6 g7 Ne8 Bd8 N8c7 Na5 Kb6 Qe7 Qb5 f8Q Nd4 Qef7 Ra6 Rb1 a1R Qb3 Ra2 Qff5 Ra7 Bgd5 e3+ Kc3 e2 Kd2 e1N g8Q Ra4 Bde4 Rc4 Qgf7 Rc6 Ra1 Rf6 Ra4 Ra8 Rc4 Ra7 Be7 Na8 Rc7 Nc6 Bd8 Nd4 Kc3 d2 Kb2 Nd3+ Kb1 Nb2 Rd3 Rh5 Qgg8 Rhh6 Qa4 Rh8 Qfb3 Rh7 Qgf7 Nc4 Ba3 Nb2 Bae7 Rfh6 Bg5 Re6 Ne3 Rf6 Nd1 Rc6 Rf3 Ne2 Ndf2 Rf6 Re3 Nc1 Rg3 d1Q Rf3 Qd6 Rd3 Ne2 Nd1 Nd4 Kc1 Qd5 Rc6#
n1N1RK2/B2b3B/1P3BBR/3Nr1B1/Q3NnQ1/2nn1n2/2p3Nn/1R1k4 b - - 0 1 legal: proof: c4 a5 b4 f5 a4 d5 cxd5 b5 axb5 a4 e4 Qd6 exf5 Qg6 Bc4 Qa6 Bf1 Qa5 bxa5 Kd8 Qf3 Kd7 Qd1 Ke8 g4 Nh6 f4 Rg8 f6 Kd7 f5 Ra6 f7 Rh8 f6 Re6+ Kf2 Ng8 h3 Re5 h4 Rf5+ gxf5 g5 Ke1 g4 Bb2 Bh6 Bc1 Bg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 Ke2 Kd6 Kd3 Kc5 Ke4 Kb4 Ke5 h5 f8R c5 d4 g3 f7 h4 d6 h3 d5 g2 a6 c4 a7 a3 a8Q a2 f6 h2 g6 c3 g7 e6 d7 c2 Kd6 Kb3 d8N e5 Re8 e4 f8N e3 f7 e2 Nfe6 e1N f8B Nc6 Nh3 g1N Bd3 Ba6 Nhf4 Nb8 Nc3 Nh3 Nb7 Nh6 Ke7 Ng4 g8B Nf3 d6 Nd7 Ng2 Rh5 Ne4 Re5 Bh7 Nb6 d7 Nf4 Nbd6 Bc8 d8B Bd7 Nc8 Kb4 Qc6 Na8 Bb6 Kb3 Ba7 Kb4 b6 Kb3 Bd2 Kb2 Rc1 a1N Bg7 Nb3 Kf8 Nc5 Bf6 Na4 Nc7 Nc3 Qc4 Nh3 Bdg5 Nf4 Rg1 h1N Nd5 Ngh2 Qa4 Nf2 Rh1 Nd2 Qg4 Ndf3 Ba6 N2d3 Ra1 Nf1 Rh6 N1h2 Rg1 Nde1 Bd3 Kc1 Ned6 Kd2 Bdg6 Nd3 Rc1 Ke2 Rb1 Kd2 Ne4+ Ke2 Rb5 Kd1 Rb1+
3r1N1K/1B3pB1/3b1r1R/R2R1Q2/b1k3pN/5PRN/1n2B1b1/B1Q3Rn b - - 0 1 illegal: No possible last move
1NR3q1/2QnrB2/5r2/1B1nk2K/BB2NR2/p1P1R2Q/p3r1n1/3NN1N1 b - - 0 1 illegal: Other
1B2n1rN/1Q1pR3/1p2B1R1/2k2P2/N2N1KQ1/N4R2/2n1r1Q1/3qrRqN b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 a4 b6 a6 e6 a5 Be7 a7 Bg5 Bxg5 Kf7 a6 Bb7 Bc1 Bf3 Qxf3 Ke7 Qd1 Ke8 Kd2 Ke7 Ke3 g5 h4 e5 c4 e4 f4 g4 h6 g3 h7 g2 h5 Nf6 c6 Qg8 c5 Qe8 h6 Qf8 c7 Qc8 c6 Ne8 f6+ Ke6 f7 Nf6 f8R Ng8 Bc4+ Ke7 Be6 Qb7 c8Q Qc7 Nh3 g1Q+ Nf2 Qd8 c7 Qg2 Qg4 Kd6 Rf1 Qg5 Qb7 Ne7 c8N+ Kc5 Nh1 Qa2 Nc3 Qh2 Nd6 Ng8 Nc4 Qhh5 Na3 Qhg6 Na4+ Kb4 Ra2 Qe5 Re2 Qd5 f5 Qg7 Rf6 Qb5 Rg6 Nc6 Kf4 Rd8 a8Q e3 a7 Nf6 Ree1 Rhg8 h8R e2 h7 Qa6 Bb2 Ne8 Be5 Qb5 Bb8 Nd4 Rf3 Nc2 Ref1 Rf8 Rg8 e1R h8N Rf6 Rf8 Qe2 Rf7 Qd1 Re7 Rf7 Qd5 Rf8 Qab7 Rg8 a8N Rc8 Qd2+ Rc3 Qdd5 Rce3 Nc7 R3e2 Ncb5 Qga1 Nd4 Qab1 Qg2 Qa1 Qe4 Qac1+ Kg3 Qe3 Qg4 Qg1 Nc3 Kc5 Kf4 Qb1 Nd5 Qa1 Nc3 Qd1 Na4+
2n2R1K/B3RBn1/B1p3N1/3pn3/4PpQB/k1p3R1/3qQBq1/1N3QQ1 b - - 0 1 illegal: Other
R4r2/1BRrqR2/3R1rk1/3K1R1b/b2BP1b1/3Qq2Q/1n3B1N/N2nQ1Q1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Be3 Ra2 Bb6 Ra1 Ba5 bxa5 Kd7 Ra2 Ke7 Ra1 Ke8 Kf2 c5 Ke3 f5 g4 Kf7 d4 h5 e6+ Kg6 e7 a3 e8Q+ Kg7 g6 a2 a6 f4+ Ke4 h4 g5 c4 d6 h3 d5 f3 a7 c3 d7 h2 b6 f2 d6 c2 b7 Qa5 d8B Qd2 d7 Na6 b8Q Qd6 Nf3 Qg3 Bb6 Ne7 d8R Nd5 Rd6 Rg8 Bg2 f1B Nbd2 Ne7 Bf2 Nf5 Qb3 Qh4+ Kd5 Nc5 Bb2+ Nd4 Rc1 a1R e3 Be2 Rf1 h1B Nh2 Rb8 a8R Na4 Qe6 Ra2 Qd3 Rb7 Qe1 Rd7 Nb3 Rf8 Na1 Bh5 Qh3 Ra3 Bc3 Nb2 Ra7 Rf6 Rc7 Nb5 Bd4 Ra8 Bf3 Kg8 g7 Kf7 g8R Bg2 Rb1 c1Q Rd8 Kg7 g6 Kh6 g7 Nc3+ Kc6 Bh1 g8Q Ncd1+ Kd5 Rb8 Qg1 Qg5+ Ke4 Kg6 Rf8 Bg2 Rf7 Qcc5 Rc1 Qh6 Rc3 Qf8 Ra3 Qe7+ Qe6 Qg5 Ra8 Bh3 Bh1 Qg3 Bf3 B3g4 Bg2 Ba6 Bh1 Rf8 Kd5+ Kh6 Qef5 Bb5 Qf3 Qf4 Qh3 Qf3+ Kc5 Qe2 Bb7 Ba4 e4 Kg6 Kd5 Qe3 Bh4 Qh6 Rf5 Qe3 Bf2
r1N4r/N1NQb3/k5BR/r1B1B1q1/nR1K1B2/N2Pn1R1/3b2Q1/3Bn2n b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 Kd3 Kc8 b4 Kb7 g7 e5 d6 c5 d7 a5 g6 h5 b5 h4 g5 h3 f6 a4 f7 h2 Na3 Qf6 d8N+ Kc8 b7+ Kc7 b6+ Kd7 Be2 Be7 f8B Qf7 Nh3 Ra7 Nf4 Ra5 Nfe6 Nf6 g8N Ng4 g7 Rh7 g6 Kd6 Nc6 Na6 b8R Ne3 b7 Qf4 Na7 Rh8 Nc7 e4+ Kc3 c4 Kd4 c3 Rb1 c2 Rb3 Nd5 Rg3 Nc5 d3 Qg5 Bf4+ Kd7 Bh5 c1B Qg4+ Qf5 Qh3 e3 Bd1 e2 Qh7 e1N Be5 Bf6 Ne7 Bd2 g8Q Ne3 g7 Qg5 Nec8 Be7 Qa2 Kd8 g8B Kd7 Bf7 Kd8 Nc2 a3 Bg6 Na4 Qag8 a2 Na3 a1R Qa2 Bf6 Bc5 Be7 Qb2 Bb4 Qg2 Bd2 Rf1 h1N Bf4 Nf2 Rh1 Kd7 Rh6 Nh1 Ra8 Ra2 b8B Kd8 Ncb5 Kd7 Bbe5 Kd8 Rb8 Kd7 Nbd6 Kc7 Rb4 Ra1 Qe2 Ra2 Ndb5+ Kb7 Qg2+ Ka6 Nc3 Bf6 Qd7 Be7 Nd5 Rb2 Rc4 Rb8 Rb4 Ra8 Nc7#
1kNb3R/1N4Bb/1r3Rb1/3R3Q/rB1PR1K1/Qn3B2/2r3Br/1n2Q1Rq b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kd7 Kf3 h5 g4 c5 d4 Kc7 b6+ Kb7 f6 e5 g6 h4 g5 c4 d6 c3 f7 h3 g7 h2 d7 c2 a6+ Kc6 a7 Kb7 g6 e4+ Kg4 e3 f4 e2 f5 e1R f6 Qe8 Bh6 c1R Bg2+ Rc6 Nd2 Rf1 Nb3 Qe5 Qe1 Qc5 Na5+ Ka6 b7 Qe5 Ne2 Rb6 Ng3 Rg1 Nf5 Qc7 d8R Ba3 f8Q Qf7 Rd5 Nc6 b8R Be7 Nb7+ Na5 Rc1 Bd8 Rc6 Qc7 f7 Nb3 Rf6 Ne7 g8R Qc1 g7 Rf1 Rg1 h1B Bd2 Rf2 Bb4 Rh2 Rh8 Rc2 g8Q Bd7 Qh7 Be8 Qh5 Qh6 Rb5 Nd5 Ne7 Nc3 Nc8 Nb1 Rd5 Qh7 Qfe7 Qh6 f8B Bg6 Bg7 Bh7 Bh3 B1e4 Bg2 Beg6 Bf3 Qd2 Qd6 Qg2+ Qdg3 Qh1 Re8 Rbc6 Re4 Rd6 Ne7 Kb6 Nc8+ Kc7 Qgh3 Rb6 Bg2 Nc5 Qa3 Nb3 Ncd6 Be7 Rh8 Bd8 Bf3 Rc8 a8B Kb8 Bg2 R8c7 Nc8 R7c4 Bd2 Ra4 Bb4 Rh3 Bf3 Rhh2 Ra5 Rce2 Bg2 Be8 Ree6 Rc2 Nc5 Be7 Baf3 Bd8 Nb7 Bf7 Re4 Bfg6 Rd5
1Q2N1Q1/r5nb/2bRrB1R/RQNb1b1B/K1P2k2/3B1R1B/7B/2n2n1q b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Be7 c5 Bd6 Rh6 Bc7 Rh1 Ba5 bxa5 Qf6 Bf4 Qb6 Bc1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 e4+ Kg6 g4 d5 c4 f5 e6 h5 b6 a3 c6 f4 b7 h4 a6 f3 e5 a2 c7 f2 e7 d4 e8R d3 e6 h3 e7 d2 a7 h2 Ne2 Bf5 c8B Nc6+ Ka4 Qb6 b8B Qb7 Nd4 Qb6 Bd3 f1B Rd8 Qb7 e8B+ Qf7 Na3 Be2 Ne6 Ne5 Nc5 Rh7 Nb5 Nh6 Bb2 Bf3 Nc7 Bd5 Qb3 Nf3 Bf6 d1B Rd6 Nd2 Bcd7 B1f3 Qb5 B3e4 Rag1 a1N Rg3 Nab3 Be6 Nf1 B6d7 Rh8 Be6 Kh7 g6+ Kg8 g5 Nc1 g7 Kh7 Bc8 Kg6 g8Q+ Kh5 g6 Qh7 Bf7 Bc6 Qd8 Re8 Bd7 Re6 Ne8 Bed5 Bc7 Bde4 Qb8 Bcd5 Rf3 Kg4 g7 Bc6 Rg3+ Kf4 g8Q Bed5 Bh5 Bde4 Rhg1 h1B Rg6 Bed5 R1g3 Bhe4 Bc8 Bh3 Bd7 Nf5 Rh6 Ng7 Bc8 Bhf5 Bd7 Qh8 Bc8 Bh7 Bd7 Re5 Bh3 Bef5 Qc8 Rb8 a8R Re6 Ra5 Rb7 Qb8 Ra7 Bd1 Bfe4 Bf5 Nh5 Rhg6 Ra6 Rg2 Ra7 Rd7+ Ke3 Bg3 Ng7 Rd6 Nb3 Rh2 Nc1 Rg4 Bg6 Bge5 Qh6 B1e2 Qg5 Rh6 Bh7 Bh2 Qf4 Bd1 Qf3 Rg3 Kf4 Bh3 Qh1 Bh5 Bef5 Rf3#
1Bb3R1/R6r/bP5N/1QRkBBN1/qb4Qn/rb6/1Q2rQ2/QR3K1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Kd7 e4 f5 d4 a5 b4 h5 g6 c5 e6+ Kd6 g5 c4 g7 c3 e7 h4 e8R f4 g6 a4 e5+ Kc7 d6+ Kb7 d5 f3 d7 c2 b6 a3 d6 Kc6 b5+ Kc5 e6 a2 b7 h3 e7 h2 b6 Nh6 g8R Na6 b8B Nb4 g7 Ba6 Nc3 Ra7 Nh3 Bb7 Nd5 Na6 Nf6 Ra8 Ng5 Nb4 Ng4 Rh7 Rb1 a1R Bd3 f2+ Kf1 R8a3 Bb2 c1Q Be5 R1a2 Bf5 Bc8 Rg1 Qc7 d8Q h1B d7 Qf4 Qe2 Qd6 Qb2 Nd3 Qc7+ Kd5 d8Q Qb4 Qcc1 Qa4 Qdc7 Qdb4 Q7c2 Qc5 Qa1 Bf3 Qc1b2 Bd1 Qe2 Bb3 Qed2 Nf7 Nh6 Nh8 Rc1 Ng6 Rd8+ Qd6 e8Q Nh4 Rd7 Be7 Ra7 Qc5 Qe3 Bd6 Qb5 Bf8 Rb1 Be7 Ke2 Bf8 Rgc1 f1B+ Kd2 Nf2 Ke1 Nh1 Qef2 Bh3 Ke2 Bg4+ Kf1 Ba6 Qc3 Re2 Qcb2 Qf4 Rh8 Qa4 g8Q+ Rf7 Qg6 Rh7 Rg8 Bd6 Bd3 Bgc8 Bf5 Be7 Qh5 Bf6 Qg4 Bh8 Bh2 Bc3 Bhe5 Bb4 Rxc5+
r1N3qk/NB5b/2Q4K/2RnN3/2Qr2BP/B2RQb2/2N1r1r1/2Q1qQ1n b - - 0 1 legal: proof: c4 b5 h4 h5 e4 g5 a4 d5 cxd5 f5 axb5 Na6 exf5 Nb8 g3 Bg7 hxg5 h4 g6 h3 Bg2 Bf6 Bf1 Bh4 gxh4 Bd7 Ra6 Be6 Ra1 Bc8 Ke2 Kf8 Kf3 Kg7 Kg4 e5 b4 a5 f4 c5 d4 h2 d6 e4 b6 a4 d7 a3 d5 c4 b7 c3 b5 e3 b6 c2 f6+ Kh6 d6 a2 f7 Kg7 f8N e2 f5 e1R Nf3 Qc7 Kg5 Re3 d8N Rea3 d7 Qd6 Ne5 Qd3 Bg2 R3a7 Ba3 c1R Ndc6 Qh3 d8Q Rc3 Q8d3 Rb3 Qe3 Na6 b8Q Nf6 b7 Be6 Qdc1 Rd3 Qc7+ Nd7 b8Q Rc3 f6+ Kg8 g7 Bf5 Qb3+ Rc4 Rd1 h1B Rd3 Nac5 Nfg6 Nb6 f7+ Kh7 f8Q Qg3+ Kh5 Nd5 Nge7 Ne4 Nc8 Rd4 Qbc4 Nf2 Qcd6 Rb7 N6a7 Rg8 Qdc6 Re7 Bh3 Bhe4 Bg4 Nh1 Kg5 Bg6 Qff1 Bgf5 Kh5 Bf3 Kg5 Rf8 g8B+ Kh8 Bf7 Rg8+ Kh6 Bh7 Bg6 Qe1 Be4 Qg3 Nd2 Qe1 Nb3 Rgg7 Rb1 a1Q Rb2 Re8 Rc2 Qa2 Na1 Ree7 Bd7 Rg2 Bg4 Qb3 Rcc3 Qb6 Nc2 Qd8 Rb3 Qg8 Rb5 Rg7 Rc5 Re2 Bgf5 Rg3 Bg4 Rgg2 Qb6 Nc7 Bb7 Nd5 Qc6
2qnR3/6bN/kP1B4/2B1Bn2/R1RrQ2r/N1b2q2/K3Q1n1/NB1BR1n1 b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 b4 Kd7 d4 Kc8 Kd2 Kb7 Kc3 e5 Kb2 a5 d6 c5 d5 h5 d7 e4 d6 h4 g7 c4 b5 c3+ Ka2 h3 f6 h2 f7 e3 g6 e2 g5 e1Q Bf4 c2 Be5 c1B Bd3 a4 Qe2 a3 Nf3 Qe7 d8B Nh6 g8N Ra5 d7 Qc5 g7 Qe3 g6 Qd4 Be7 Qe4 d8R Qd4 Bc5 Qdh4 Nd4 Qhf2 Nf6 Qg2 g8B Qf3 g7 Bb2 Nb3 Qc1 Re1 h1N Re8 Nc6 Nh7 Nf5 Bc2 Ra6 Bd1 Bc3 Qe4 Nf2 Qe2 Bd6 f8B Nd8 Bc4 Bc7 g8Q Nh3 Qg6 Ra4 Bd3 Rd4 Bfd6 Ng1 B3c2 Rg8 Qe6 Rgg4 Qg6 Rh4 Qg4 Kb8 Qge4 Kc8 b7+ Kb8 Bb4 Ka7 b8R Ba5 Bd3 Bb2 Rb6 Qc8 Bbc5 Bd2 B3c2 Bbc3 Bd3 Bh6 Rc6+ Kb7 b6 Bf8 Bb4 Bg7 Rc4+ Ka6 Bbc5 Bb2 N1d2 Bc3 Rb1 Qb8 Na1 Qc8 Kb3 a2 Rb2 Qf1 Nb1 Qh3 Na3 Qf3 N1c2 a1N+ Ka2 Nb3 Na1 Nd2 Bb1 Nf1 Rb3 N1e3 Rbb4 Ng2 Ra4+
1r2q3/3QN3/RR1Q1N1K/1R1Pbq1n/B3N2k/4n3/nb1R1N1N/2Q1n1Bn b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 e4 b3 exf5 a6 f6 Nd7 f5 Nb6 f7+ Kd7 f6 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 h3 a5 Ke2 Ra6 Ke1 Rc6 Qa4 Rc3 Qc2 Rf3 Qd1 Rf5 gxf5 Ba6 Qg4 Bb7 Qd1 Bc8 b6 g5 Be2 g4 Bd3 g3 Bf1 Ba6 Nf3 Be2 Ng1 Bg4 hxg4 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 e5 Kf3 h5 d4 c5 b4 c4 d6 h4 b7 e4+ Kf4 h3 Kg5 g2 b5 h2 b6 e3 d5 a4 Nc3 a3 Ne4 c3 Nf2 c2 Bb5+ Nc6 b8R a2 b7 e2 Ba4 e1N Be3 c1B Nf3 Bb2 Qc1 Bg7 f8Q Qa5 f7 g1Q f6 Bc3 Kg6 Qc7 g5 Qf1 Rg1 h1N Nh2 Qh3 Rg2 Bh6 Qg7 Qe6 f8Q+ Qe7 f7 Nd3 Kh5 Nb2 g6 Nd1 Qh7 Qe6 g7 Qe8 Kg6 Nf6 g8N Bd4 Ne7 Bf4 Kg7 Bg3 Kh6 Bb2 Bd4 Qcc8 Bc5 Kd8 d7 Nh5 Be3 Kc7 d8N Kd6 Ne6 Ke5 Nc5 Nb4 Nce4 Qf5 Ba7 Ne3 Bb6 Qb5 Qd8 Kf4 f8N Qe8 Nd7 Rg8 Ndf6 Rh8 Qd7 Rf8 Qg6 Rg8 Rb1 a1N Ra8 Nac2 b8R Ne1 Ra6 Na2 Bd4 Rf8 Rb5 Rg8 Nf2g4 Rf8 Rd2 Rg8 Ngf2 Rf8 Nhg4 Kf3 Ba7 Bge5 Nh2+ Kf4 Ng5 Kg3 Nge4+ Kh4 Rbb6 Bbc3 R1b5 Rg8 Nh7 Bb2 Qgd6 Qef7 Nhf6 Rb8 Rc6 Qe8 Bc5 Qh3 Rcb6 Qf5 Nd1 Nc4 Bg1 Ne3 Ndf2
r5RR/1qN3QR/5R2/Qb1nNkP1/2nK1n2/1R1nB1B1/B1b4q/3QBq2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 c4 d5 cxd5 f5 gxf5 g4 e4 Kd7 f4 Bb7 h4 Bg7 e5 Bf8 f6 Bc8 f5 Ra6 f7 Rf6 exf6 Bh6 Qb3 Qe8 Qd1 Bg5 hxg5 Qd8 Ke2 h5 Ke3 e5 f8R c5 b4 c4 d4 g3 b6 e4 b7 g2 b5 c3 b6 c2 d6 h4 f7 a4 f6 Ke6 d7 a3 d5+ Kf5 d6 h3 Nf3 g1N Kd4 h2 Bc4 a2 Na3 e3 Ne5 e2 Be3 c1N Nb5 e1Q Nc7 Ne7 Rb1 Qf2 Rg8 Nd3 f8R Qg2 f7 Nh3 Rb3 Nhf4 Bd5 Qe8 d8Q Nd7 b8R Ba6 b7 Nb6 d7 Bb5 Ra8 Qf2 b8B Nc4 Ra6 Qh4 Rh6 Qh3 Rh7 Qg3 Rf1 h1B Rf2 Qh2 Rf3 Nc8 Qe7 Bg2 d8Q Qc6 Re8 Qa8 f8B Qb7 Qg7 N8b6 Bb4 a1Q+ Bc3 Qc1 Be1 Bh1 Rf2 Be4 Bf7 Qb1 Qd5 Qc1 Qc5 Nd5 Qb6 Qg1 Qa5 Qh2 Rgf8 Nd6 Na6 Nb6 Rb1 Nb2 Qh5 Bc2 Nd7 Nd3 Bc3 Qf1 Qd1 Rg8 Rf3 Kg4 Ba2 Ndc4 Rb3 Nbd5 Be1 Ng6 R3f6+ Qfe2 Bbg3 Ngf4 Nc7 Qf3 Re5 Qfe2 Rb8 Rd8 Re8 Rc8 Reh8 Rg8 Rc6 Kf5 Ne5 Qf1 Rc8 Rf8 Re6 Rf6 Rcg8 Rf8 Rb6 Ra8 Rf6+
2b3r1/1k3PRN/R3B2Q/Q2NQ3/7B/1q3Nr1/1Rqb1qQQ/KR1b1b1n b - - 0 1 legal: proof: c4 b5 h4 f5 e4 e5 a4 g5 axb5 d5 hxg5 Bc5 cxd5 Bf8 f4 Nc6 fxe5 f4 Rh6 Nd4 Rh1 Nf5 exf5 Qf6 Nh3 Qe7 Ng1 Qd8 g4 Kd7 b4 h5 d4 c5 Kd2 Kc7 Kc3 a5 Kb2 c4 d6+ Kb7 e6 h4 d5 a4 g6 h3 g5 f3 e7 f2 e8N h2 g7 Nh6 g8Q Bg7+ f6 Be6 b6 Ka6 d7 Bf8 g6 Qc8 d8Q Qc5 b7 Ng4 b8R Ne3 g7 Rh7 f7 Rh6 b5+ Ka7 b6+ Ka6 b7 Rh5 d6 Bf5 d7 Rh3 Qe1 Rg3 Qg5 Ng4 d8Q Bc8 Bh3 f1B Nc3 Nf2 Nf3 a3+ Kb1 Qd5 Qee5 Bb4 Nf6 a2+ Kb2 Qd3 Ncd5 Bd2 Be6 Qf5 Rg1 h1B Nh7 Qh3 Rb1 c3+ Ka1 c2 Qh6 Qh4 Ba3 c1Q Be7 Qc2 Qdc7 Qb4 Bh4 Qbb3 Qgd8 Bhg2 g8Q Nh1 Qg4 Be2 Qh3 Bgf1 Qg2 Bd1 Qdh8 Kb5 Qa5+ Kc6 Rb2 Bd7 Rg8 Re8 b8R Bc8 Rg4 Rg8 Ra8 Kb7 Ra6 Rh3 Q6g7 Bg5 Nhf6 Qc5 Qeh2 Bd3 Qhh7 B1e2 Qhh6 Qf2 Nh7 Bd2 Rgb1 Rg3 Rc2 Bd1 Qe5 Bf1 Rg7 Qb4 Nb6 Qbc5 Kb2 a1Q+ Kb3 Qc6 Nd5 Qaa4+ Kb2 Qb3+ Ka1 Qcc5 Ra2 Qc2 Rab2
b2B3Q/KPQ1n3/2Rb1NrN/1b1R3q/1k1Q3B/5r2/4B1q1/1rBN1rBQ b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 b4 a5 f6 c6 b6 h4 b5 h3 f7 a4 b7 e6 b8Q+ Qc7 b6 a3 Nc3 a2 Nge2 h2 Nf4 Rh6 Nh5 Ne7 g8Q Rh7 g7 Ba6 g6 Nc8 Qh8 Ra7 g8N Be2 g7 Ra6 Nhf6 Bd3 Be2 Rh3 Nh6 Bb5 g8Q Ne7 Qgh7 Rf3 Rg1 h1B Rg5 Bg2 Qa7 Qc8 Qh1 Qa8 Nd1 Qb7 Rb1 a1R Rb2 Rb1 Rc2 Bg7 f8B e5+ Ke4 c5 d4 c4 Rf5 c3 Rg5 Qc8 Rf5 Bc6 Rh5 Ba8 b7 Qe8 Rf5 Qh5 Rg5 Kc7 d6+ Kc6 d7 Bf1 d8B Rab6 d5+ Kc5 d6 Kb4 d7 Rd6 Ra2 c2 Ra6 Rc6 Qe3 Re6 Kd3 e4+ Kd4 Rb6 Qf4 e3 Rd5 Re6 Rc6 Rd6 Bb2 c1Q Qhe4 Qc2 Bc1 Re6 Qee5 Qcg6 Qc7 Qg2 Qe4 Re5 Qf4 Rg5 Qfh4 Rg6 Qf2 Ka4 Kc5 Kb3 Kb6 Kb4 Nhg4 Bh6 Ka7 Bf4 Nh6 Be5 Bd3 e2 Qd4+ Kb3 Bg7 e1R Be2 Bd6 Nfg8 Nf5 Bh4 Ne7 d8B Rf5 Qc5 Rf3 Bd4 Ka4 Bg1 Kb3 Ba6 Bb5 Nf6 Ref1 Qe3+ Kb4 Qe5 Ba4 Be2 Bb5 Qd4+
b1nBB1N1/2q5/2rb1BBB/2Nb1N1b/5bP1/1R1bQN2/2R1Q2R/K1bk4 b - - 0 1 legal: proof: d4 a5 g4 e5 a4 b5 axb5 f5 f4 c5 dxc5 g5 fxe5 f4 h3 Nc6 Ra4 Nce7 Ra2 Nf5 gxf5 g4 Ra4 g3 Ra1 Ra6 Kd2 Rg6 Ke1 Rg4 hxg4 Kf7 Qd3 Ke7 Qd1 Ke8 Kd2 Ke7 Kc3 d5 b4 h5 Kb2 h4 e4 d4 c4 a4 e6 Kf6 c6 Ke5 c5 f3 b6 g2 b7 f2 b8R d3 b5 Kd4 b6 d2 f6 Ke3 e5 h3 f7 h2 b7 Rh3 e7 Qd3 e8Q Rf3 e6 Qd7 c7 Rg3 e7 Nh6 c6 Rh3 Nf3 g1B Ra2 a3+ Ka1 Ng8 Rc2 a2 Bb2 Rh6 Bd3 f1B Bg6 Bd3 Bf6 Qd8 Nc3 Bd7 c8N Qc7 Qf1 d1B Na4 Bf2 Qg2 Bg3 Nc5 Bf4 Nd6 Be6 Qg3 Bd5 Qh3 B1e2 Nf5+ Kf2 Qd8 Bc1 e8B Bd6 f8B Ne7 B8g7 Nc8 Qe7 Bf7 Qe4 Bdc4 Bd8 Bcd5 Bgf6 Qe7 c7 Qd7 Rg1 h1B Rg2+ Kf1 Qg3 Bd3 Rh2 Qe7 Qge5 Bg2 Qe3 Bh1 Bh7 Bh5 Bhg6 Qd7 Ra8 Bg2 b8B Qg7 Ra3 Ba8 Ne1 Bgd5 Rb3 Qd7 Nf3 Qc6 Q3e4 Bf4 Qe3 Qb6 Kb2 a1B+ Ka2 Bc3 Ba7 Be1 Ka1 Bd2 Qb2 Bc1 Qa2 Ne7 c8N Qc7 Bb8 Nc6 Qb2 Na7 Nce7 Nc8 Ng8 Be2 N3h4 Ke1 Nf3+ Kd1 Ba7 Bd3 Bb6 Qb7 Ba5 Qh7 Bd2 Qc7 Bd4 Rh7 Qe6 Re7 Be5 Bg5 Bf6 Bg3 Qbe5 Rd7 Rb5 Rd6 Rb3 Rc6 Qd4 Bh6 Qde4 Bf8 Bh6 Bgf4 Qd4 Be7 Qf2 Bf8 Qee3 B8d6 Qfe2+
1N2qNK1/8/3Rn3/1n5Q/BR1Qb2Q/bPb1qkB1/2n1q1RR/1R3BqB b - - 0 1 legal: proof: c4 h5 f4 e5 a4 f5 g4 b5 axb5 d5 cxd5 a5 fxe5 g5 Qa4 f4 Qd1 Rh6 h3 Rf6 h4 Rf5 gxf5 g4 Ra2 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Qd7 Rh4 Qd6 Rh1 Qd8 Bh3 Kd7 Kf2 c5 d4 a4 e4 a3 g6 g3+ Kf3 a2 b6 c4 b7 c3 g7 c2 d6 Kc6 d7 h4 Kg4 f3 Kh5 f2 Kg6 f1N Kh7 g2 b3 Ne7 g8R Qa5 d8Q Nd5 e6 Bg7 e7 Nc7 e8B+ Bd7 e5 Kd5 e6 Ke4 f6 Nh2 f7 Bf6 f8R Bc8 e7 Qa3 d5 Ne6 d6 Nf1 Qh5 Ne3 d7 Qa4 Na3 Nc7 Nc4 Nd1 Nf3 g1B Na5 Be3 Nc6 Nba6 b8R Bb7 Nfe5 Bc5 Ng6 Bc3 Rb1 Ba3 Rf6 Ne3 Nf8 Nc5 Bd2 c1Q Be1 Qd2 Rfg6 Ba8 Rb4+ Qd4 Nb8 a1Q Rc1 Qa2 Rb1 Qh2 Rf6 Qg1 Bf1 h3 Rg7 h2 Kg8 Qf2 Rgg1 Qf3 Bg3 Qe2 Bf7 Bd5 e8B Nc2 Rg6 Bb7 Bd5+ Ke3 Ra6 N5e6 Qdh4 Bc6 Bf3 Be4 d8Q Qad7 B3g2 Qc8 Ba4 Nb5 Qdd5 Qe8 Rd6 Qb6 Bf3 Qc5 Rg2 Qd4 Rf2 Qa7 Rg1 h1Q Rh2 Qhg2 Qde5 Qgf2 Bh1 Qb6 Rgg2 Qg1 Qh5g5+ Kf3 Qgh6 Qbf2 Qd4 Qfe3 Q6h5+
rN1B1RRQ/2B2N1q/5Rb1/1K1N3B/4PB2/3rbNNQ/4r1r1/qk1b3q b - - 0 1 legal: proof: h4 d5 f4 g5 a4 f5 c4 b5 cxd5 e5 axb5 Na6 Nc3 Nh6 Nb1 Nc5 fxe5 f4 g4 Nf5 gxf5 g4 Ra4 Ne4 Ra1 Ng5 hxg5 Bd6 Nf3 Bc5 Ng1 Bf8 e4 Kd7 Ke2 a5 Kd3 h5 Kc4 c5 d4 a4 b4 f3 e6+ Kd6 f6 g3 f7 f2 g6 h4 b6 h3 b5 g2 e7 h2 e8Q a3 g7 a2 g8N Bh3 b7 Ra5 b8N Bd7 b6 Bc8 b7 Bh6 f8R Qe7 Qf3 Bg4 Nf6 Bh5 Nc3 Bg6 Nh5 Be3 Qh3 Ra3 Nf3 g1R Ng3 Qh7 Be2 f1B Kb5 Rg2 Rg1 h1Q Bd2 c4 Re1 a1Q Qec8 Bg5 Bf4+ Ke7 Bd1 Be2 Ref1 Ra2 Bc7 Be3 Bf4 Ra8 Rf6 Rd8 d6+ Ke8 d7+ Ke7 Rb6 Kf7 d5 Ke7 d6+ Kf6 Nd4 Bg4 Nf3 Ke6 Nd5 c3 Be2 c2 Qc3 c1R Qh8 Rc3 Rc6 Rc8 d8B Rd3 Ra6 Rc2 d7+ Kf7 Bd1 Rce2 Re6 B4h5 Re8 Bg4 Rf8+ Ke6 Bdc7 Qh6 d8B Qh7 Nc6 Qa7 b8N Bh5 Ne1 Red2 Be7 Rgf2 Bh6 Qa1 Nf5 Rh2 Rg3 Rhg2 Bed8 Be2 Rg7 Bg6 Ne5 Bf3 Nf7 Rda2 N7d6 Ke5 Ng3 Kd4 Nf7 Bg4 Rf6 B4h5 Nb6 Kc3 Bhf4 Kb2 Rgg8 Kb1 Nd5 Rad2 Bg4 Rda2 Bd7 Be2 Nf3 Bd1 Bg4 Rae2 Bh5
1N3r1Q/rq4RK/3b1PQQ/rb5B/2b3R1/QN2R1qB/1BQ4B/2r1kq2 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Kd7 f7 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 g5 Nc6 h3 Nf6 h4 Ne5 Ke2 Nf3 gxf6 g5 Kf2 g4 Ke2 Ng5 hxg5 g3 Ke1 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Kd6 Kf3 Ke5 Kg4 Ke4 Kh5 e5 d4 a5 b4 c5 d6 g2 d5 c4 b6 c3 b5 a4 d7 a3 g6 c2 g7 a2 Kh6 Bb7 d6 Ra4 Rh3 Qc8 d8Q Rb4 d7 Ba8 b7 Qc7 b8B Rb2 b6 Qc5 b7 Qb5 Qb6 Rg8 d8R Qb4 Rd7 Bd6 Nf3 g1Q f8Q Qg3 f7 Rh8 Qe7 Rf8 g8B Rb3 f6 Ra3 Nd4 Ra5 Bb2 Ke3 Nd2 Kf2 N2b3 c1R Qc2+ Ke1 Nc6 e4 Qg1 e3 Rh4 e2 Rg4 Qb5 Bc7 Qb4 b8Q Qb7 Qbe8 Ra7 Nb8 Ra5 Kg7 h5 Kh7 h4 Qh2 Ra7 Bh3 Ra5 Rb1 a1R Qe3 Ra7 Qh6 R1a5 Qg2 Qb4 Re7 Bc6 Re3 Bb5 Qge4 Bc4 Qeg6 Qb7 Ra1 Bb5 Raa4 Bc4 Rg5 Bb5 Rag4 Bc4 Qa4 Bb5 Qa3 Bc4 Bg2 h3 Bf1 h2 Bh3 Re8 f8Q h1B Be6 Bc6 Qh8 Rf8 Bf7 Be8 Qgg8 Bd7 Bh5 Bdb5 Qgg6 Kf2 Qb1 e1Q Qgc2+ Qe2 Rg7 Ke1 Qcg6 Be7 Bf4 Bc5 Qbc2 Bd6 Rf3 Qf1 Bfe5 Qh4 Bh2 Qg3 Re3+
nR1Q1B1b/3p4/qB5B/PnrbN1KQ/2r1NR2/kQ1Bn1R1/4R3/2B1b3 b - - 0 1 illegal: No possible last move
1NKNQ2N/bQ6/8/1b2BR2/R1N1RR2/n2B4/1rPnpQ1r/1Nqnk2q b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 c5 exf5 c4 a4 c3 axb5 Rh6 dxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 g5 Kd3 Kf7 Kd4 Kf6 Kd5 e5 f4 d6 h4 g4 b6 g3 a6 g2 a7 e4 h6 e3 b7 Rh7 h5 Re7 c6 Rd7 h7 Rc7 h6 Rf7 c7 Re7 Rh4 Qd7 Qf3 Na6 Ra4 Rb8 a8Q Qe6+ Kc6 Qd5+ Kb6 Rf7 Qf2 Bd7 c8Q Nc7 Nf3 g1Q Nfd2 Qdh1 Nc4 d5 Bb2+ d4 Qe8 Nb5 h8R Na3 Kc7 Bc5 h7 Ba7 Bc3 Nh6 Rf8 Ng4 h8N Ne5 Bb2 d3 Bd4 d2 Bd3 Qg5 Rg4 Kg7 f6+ Kh6 f5 Kh5 Re4 d1N Bc3 Nf3 Be5 Bd4 Qa6 Ba7 Qc6 Qf4 Qd5 Kg4 Qb5 Rh7 f7 Bc6 f6 Rh2 Qb6 Rd8 Qa6 Rd5 b8N Rb5 Kc8 Rb2 Qb7 Kh3 Rg8 e2 f8N Qc1 f7 Bb5 Rgg4 Nd2 Ne6 Ra2 Rgf4 Rb2 Qe3+ Kg2 f8R Nf3 R8f5 Kf1 Qd4 Ke1 Nd8 Nd2 Qf2+
R3Rq1B/1B1Q4/1r1k1q2/R2N1p1B/Q1rN1r2/6P1/1Q1B1RnK/bn2b2R b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 b6 a5 b3 g5 hxg5 a4 Rh5 a3 Rh2 Bd7 Rh1 Ba4 bxa4 Qd6 Qb3 Qe7 Qd1 Qd8 Kf2 Ke7 Kg3 h5 d4 c5 e4 f5 b7 c4 d6+ Kd7 a5 h4+ Kh2 a2 e6+ Kc6 g6 c3 g7 h3 a6 c2 d5+ Kc5 e7 Qd7 e8B Qd8 a7 Be7 e5 Nc6 b8Q Rh4 e6 Qc7 Bd2 c1Q Ba6 Nd8 Qb2 Bf8 e7 Rc8 a8R Qc6 d7 Qf6 d6 Rf4 Qa4 Ne6 d8B Qcc3 d7 Qa3 g3 Kd6 Bb7 Rcc4 Bh5 Qc5 e8Q Ne7 g8R Nd5 Bb6 Nc3 Ne2 Qc8 Ba7 Bg7 Qf7 Qf8 Nd4 Bh6 Rh8 Bg5 Rf1 Bh6 Rf2 Bg7 Na3 Nb1 Nac2 Bh6 Nb4 Bg5 Kh1 h2 Nd5 Bh6 Kg2 h1R Qh7 Rhc1 Kh2 Rc6 Bb6 R1c4 Bba5 Rb6 Bac3 Rg4 Ra5 Nf4 Rg8 Ng2 d8R+ Ke5 Qf7 Rf4 Rda8 Kd6 Qfe8 Na3 Rh1 a1B Qeb5 Nb1 Qd7+ Ke5 Rg7 Q6e7 Be1 Rg4 Ne2+ Rgd4 Rg6 Bd2 Rc6 Qe6 Rcc8 Qg6 Re8+ Qe6 Qg7+ Kd6 Qh7 Re4 Bh8 Rf4 Nd4 Qef6 Qf7 Bc1 Bc3 Bd2 Qg7 Be1 Bd2 Rc5 Qf7 Rc4 Qfd7#
4Kn2/Q1BB1B2/b5Bp/N3Nn2/Qr1qQ1qb/4k1r1/1NP1N1RB/2R4q b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 c5 exf5 b4 d4 b3 dxc5 Nh6 axb3 Na6 b4 Ng8 b5 Nb8 Ke2 Kf7 Ke3 e5 Ke4 h6 Kd5 e4 g4 d6 f4 e3 f6 Kg6 f5+ Kh7 b6 e2 a6 e1Q a7 Qe3 b7 Bg7 c6 Qe1 c7 Qh4 f7 Qe1 f8Q Qd7 f6 Kg6 f7 Nc6 b8B Na5 Qe8 Bb2 f8N+ Kg7 g6 Kf6 g7 Qe2 g5+ Kf5 g6 Qde7 Nd7 Qf6 Ne5 Ba3 Qe1 Qd2+ Bd3+ Kf4 Qa4+ Bb4 Ne2+ Ke3 Rh2 Bf5 c8B Nc6 Bc7 Nd8 Rg2 Rb8 a8Q Ne6 Kc6 d5 Kd7 d4 Nbc3 Qg5 Q8a7 Qg4 Ke8 Ne7+ g8N Nf8 g7 Rb6 Be4 d3 Bd7 Bc5 Ba3 Rb4 Rc1 Bh7 Qh1 Nf5 Ne7 Rg8 N7c6 Qe1 Na5 d2 Qh4 d1Q Bb2 Qd4 Nd1+ Kd2 Ba1 Qh1 Nb2 Ke3 Qe1 Be7 Qh4 Rh8 g8B Bd8 Bf7 Rg8 Qe1 Bh4 Bd3 Ne7 Bdg6 Rg7 Bh5 Bd3 Bhg6 Ba6 Qf1 Kd2 Qf3 Nf5 Qe4 Qf3 Bh5 Rg3 Bhg6 Qg4 Nd1 Ra3 Nd3 Qdg1 Bae5 Qd4 N1b2 Rc3 Bh2 Rcb3 Ne5 Rg3 Qeb7 Ke3 Qe4+
BB1N1RQR/R5qr/1K1p2N1/P6Q/1R1B3R/1q1B1n2/2b1br1b/1Qk4n b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 c5 exf5 b4 d4 b3 dxc5 Nh6 axb3 Na6 b4 Ng8 b5 Nb8 Ke2 Kf7 Kd3 h5 Kc4 e5 f4 e4 g4 h4 c6 d6 c7 h3 f6 Ke6 f5+ Ke5 b6 e3 Kb5 Ke4 c4 h2 b7 e2 g6 e1Q c5 Qh4 c6 Qe1 g5 Qg3 g7 Qe7 g6 Qe8 f7 Qa3 f6 Rh6 Be3 Qe5+ Kb6 Bg4 c8R Rh7 c7 Qe7 Ne2 Rh3 Nd2+ Kd3 Nb3+ Kc4 Nc5 Qa2 Nf4+ Kc3 Bd3 Kb2 Nce6 Rh7 Bd4+ Ka3 Nd8 Nh6 g8Q Nf5 g7 Be2 Rb1 Nc6 b8B Ne5 Ng6 Ng3 Rb5 Qb3 Rb4 Bh5 Qe2 Nf3 Qh8 Ra7 g8Q Bh6 f8R Qg7 f7 Bf4 Re8 Bg4 f8R Ra8 Re7 Ra7 Rc1 h1B Rc4 Bg2 Rd7 Nh1 Rdf7 Rh2 Qh5 Bf5 Re7 Bf1 Rff7 Bg4 Bc3 Bd7 Nb7 Qa2 Qgh7 Be5 Rh8 Rf2 c8B Qh6 Rff8 Ba4 Nd8 Bh2 Qg8 Bd1 Rec7 Qb3 Rh4 Qh7 Qd2 Bfe2 Bd4 Qe7 Qc2 Qef7 Qb1 Bc2 Bb7 Qe7 Ba8 Qe5 Rc5 Rh7 Rc7 Qf6 Ra7 Qg7 Qc1+ Ka2 Qa3+ Kb1 Qa2+ Kc1 Qb1+
R2B4/bN6/PRnr1q2/QB6/1R3rRQ/1nR3Q1/kp4BK/2bBqr1N b - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 a4 cxd5 a3 bxa3 Ra5 a4 Ra6 a5 Ra8 g4 g5 fxg5 Bg7 h4 Bf8 h5 Be6 Ba6 Bf7 Bf1 Bg6 hxg6 Ra7 Na3 Ra6 Nb1 Ra8 Kf2 Kd7 Kg3 Kd6 a4 Kc5 d4+ Kb4 d6 e5 d7 h5 d5 b5 a6 c5 f6 h4+ Kh2 e4 a7 c4 d6 h3 a5 e3 a6 c3 g7 c2 g6 Kb3 g5 b4 f7 e2 Qe1 Qc7 d8Q Rh4 Bg2 Qc4 d7 Re4 Nc3 Rf4 Nb5 Qd4 Ra4 Be7 f8R Re4 Nd6 Re6 Qa5 Nc6 d8Q Re4 Rf6 Bf8 Nb7 Nge7 g8R Bh6 g7 Qc5 g6 Qe3 Qg3 e1R Ne2 Qc3 Bg5 Rb1 Rc1 Nd4 Rb6 Nec6 Qf6 Rc8 a8R Rd8 Qff4 Rd6 Bd8 Kb2 Qfh4 b3 Rab4 Qe1 Rf8 Qc3 g8B Be3 g7 Rf4 Rf6 Bf2 Rg6 Qf3 Rg4 Ra1 Rd1 c1B Rd3 Kb1 Rc3 b2 Be6 Nb3 g8B Bc5 Bd7 Bf2 R6b5 Ba7 Rb6 Qf2 Bd5 Qd4 Bdf3 Qf6 Qf5+ Ka2 Be8 Ne5 Ba4 Nc6 Qa5 Rb1 Qe1 Ra1 Ng3 Rb1 Nh1 Ra1 Kg3 h2 Bd1 Rb1 Nf2 h1Q Qe3 Qe1 Kh2 Bd2 Nh1 Ra1 Be2 Rd1 Qeg3 Bc1 Bef3 R1d5 Bd1 Rdf5 Rbc4 Rf1 Rcb4 R5f4 Bb5+
2K1RB2/8/p4bn1/1RQ3n1/1qNB1Rr1/Q3N3/q1BRrP2/kRQrbB2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 a6 b4 h4 g6 c6 g5 h3 f6 h2 b6 e6 b5 Qc7 f7 Ne7 b7 Nd7 b8R Rh6 g7 Bb7 g8Q Ng6 b6 Nf6 Re8 Bc8 b7 Ng4 b8R N6e5 g6 Rh8 g7 Rh5 Ne2 Bd7 Ra4 Rh7 Nec3 Ng6 Na3 Nh6 Bb2 Qa5 Rb5 Be7 f8B Nf7 Qc1 Ng5 Nd1 c5+ Kc4 e5 d4 e4 Ne3 Rh8 Qf7 Rb8 g8B Rh4 Bh7 Rg4 Qf3 Bf5 Rg1 h1Q Rg3 Kc7 d6+ Kc6 d7 Qh4 d8Q Bf6 Qe7 Rb7 Qe5 Re7 Rab4 Re6 Rb3 Qd2 Bc3 Qa2 d5+ Kd7 d6 Kc6 d7 Re7 Nd5 e3+ Bd4 e2 d8R e1B Ne3+ Be4 Rg1 Re6 Qh3 Bb1 Rg3 Re7 Rf3 Re6 Rf4 Re7 Ba1 Re6 Rd2 Re7 Kc3 c4 Kb4 c3 Ka5 c2 Bd4 Re6 Rb2 Re7 Qd1 c1R Qf5 Kd6 Qc5+ Ke6 Qdc2 Rd1 Kb6 Nh8 Qc1 Ng6 Q5c3 Kd6 Bg7 Re4 Kb7 Re6 Kc8 Re7 Nec2 Re2 Nc4+ Kc6 R5b4 Kd5 Bf8 Qg3 Qa3 Qgb3 Qh5 Qc3 R4b3 Qb4 N2e3+ Kc6 Qh2 Kb5 Rf3 Nf4 Bc2 Ng6 Qc7 Rg2 Rf4 Rg4 Rbd3 Qbb3 Rc3 Qa1 Qae7 Ka4 Bf5 Qb6 Rcb3 Qd6 Rb5 Qc5 Ne5 Ka3 Bc2 Qd6 R2b4+ Ka2 N5c4 Qb2 Rb3 Qba3 Rb2+ Ka1 Qc6 Qa2 Qd5 Qda3 Qf5 Q3b3 Qa3 Qc3 Qfc5 Qb4 Rxb1#
b6R/q1B1NpQ1/NR2NRQb/Rn2Q3/B1n2RK1/r2n1P2/1r3k2/5qN1 b - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 Qb6 a4 Qc7 axb5 Qd8 g4 e5 dxe5 h5 gxh5 a6 bxa6 Qf6 Ra4 Qb6 Ra1 Qd8 e4 Ke7 Ke2 Ke6 Kf3 d5 c4 g5 h4 d4 a7 d3 h6 d2 c6 Qd7 h5 Bd6 h7 Bf8 h6 Na6 c5 Qe7 c7 Nb4 c6 Na6 Na3 Nb4 Qc2 d1N Nb5 Bd7 c8N Nd3 c7 Ne1+ Kg4 Be8 f3 Qb4 Ra5 Nc3 Bf4 Qb3 Ne7 Qb4 c8R Nd5 Rh4 Bd7 Rc6+ Qd6 Rb6 Nc3 Qg2 Rb8 a8R Bc6 R8a6 Qc5 Be2 Qd4 Bd1 Nd3 Ba4 Qd7 Bh2 Qa7 Qc2 Nb1 Bg3 Na3 Qb1 Nc4 Nd4+ Kd7 Ne6 Nf6+ Kf5 Ne8 Kg4 Rg8 h8Q Nc7 h7 Bh6 Qg7 Nb5 h8R Ba8 Nd4 Rgc8 Rf6 Qc7 Nd5 Nb6 Kh5 g4 Nh3 Qa7 Bh2 g3 e6+ Kd6 e7+ Kc5 e8N g2 e5 g1Q e6 Nc1 e7 Qe1 Ng1 Qf1 Qbg6 Nd3 Nec7 Kc4 e8Q Nd6 Qe3 Rb7 Ne7 Kc3 Qe5 Kd2 Qeg5+ Ke1 Nde6 Kf2 Rc4 Rcb8 Kg4 Rc8 Qf4 Rcb8 Re4 Nbc4 Rc6 Rb4 Na6 Rb3 Qfg5 R8b4 Rb6 Nb5 Bc7 Ra3 Ref4 Rb2 Qe5
1bBq4/1pNN1N2/2R1qq2/KP1r1B2/Qr2B2Q/2RRnR1B/6k1/B4b1n b - - 0 1 legal: proof: b4 d5 a4 c5 bxc5 g5 c4 f5 cxd5 g4 e4 g3 exf5 Nc6 hxg3 Qb6 g4 Qb5 axb5 Nb8 g5 Be6 Bb2 Bd7 Bc1 Bc8 f4 Kd7 d4 h5 Kd2 a5 Kc3 e5 g4 e4 c6+ Kd6 f6 e3 f5 h4 g6 e2 c7 a4 Kb4 e1Q+ Nc3 h3 g7 a3 f7 h2 g5 a2 f6 Bd7 c8B Be8 g6 Bc6 Qa4 Qe4 Be2 Qg4 Bb2 Qg2 Rc1 a1Q Beg4 Rh3 Nf3 Qc2 Ne5 Qa2 Ba1 Ne7 g8B Rf3 g7 Qd1 Bh7 Ra7 g8B Bd7 Bhf5 Rd3 Bgh7 Na6+ Ka5 Qab3 Rf1 h1Q Rf3 Qhf1 Bhg6 Bh6 f8N Bf4 f7 Bh2 Be4 Nf5 Rg3 Bc6 Nfd7 Ne3 f8R Qf6 B6f5 Qa2 Rf3 Bf4 Rg8 Rd2 Rg6 Nb4+ Kb6 Nd3 Nf7+ Ke7 Rc2 Bb8 Rh6 Nf2 d6+ Ke8 Nd5 Nh1 Rc3 Ra5 Nb4 Qae6 Na6 Bd5 Rg6 Bc4 d5 Bd3 Nde5 Bf1 Nc7+ Kf8 Rh6 Kg7 Nd7 Qg5 Rc6+ Qgf6 Rhh3 Nc2 Rfc3 Ne3 Rf3 Rd3 Qb4 Ra2 Qa4 Rb2 Ka5 Rb4 Nde5 Bh3 d7 Bf1 d6 Rd5 d8Q Qd4 d7 Qd3 Ng5 Kh6 Qe7 Qd2 d8R Qd4 Nd7 Qd2 Bh3 Kh5 Bhg4+ Kh4 Nf7 Qd4 Rf2 Kg3 Rf4 Qh8 Rf3+ Kg2 Qh4 Qdf6 Nf8 Re5 Rdd3 Rd5 Nd7 Qhd8 Bh3+
q4Bkr/2rN1RnQ/1N5b/N3Bb2/1b3QQb/P1BR2pn/N4NB1/2K5 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 h5 gxh5 a5 exf5 a4 b3 a3 Bxb5+ Bd7 Bf1 Bc8 Bxa3 Bb7 Bc1 Ba6 a3 Bc8 f4 Kf7 h4 g5 d4 c5 Kd2 e5 h6 g4 b4 c4 h7 g3 b5 e4 h5 Ra6 f6 Bh3 b6 Bg2 d6 Nc6 d5 Ne5 f5 Nh6 d7 Ng8 h6 Ng6 d6 Ra7 b7 Nf4 b8Q Ra4 Nc3 Qe7 d8Q Bg7 d7 Ra7 Nh3 Ne2 Qdb6 Bf8 d8N+ Ke8 f7+ Kd7 f6 Ra5 Nc6 Ke6 Qf4 Qb7 Nf2 Ng1 Na2 Ra4 Na5+ Bd6 f8N+ Kf7 Qdg4 Qa8 Nd7 Bh3 Bg2 Be7 Qc6 Rb4 Nb6 c3+ Kd1 Kf8 f7 e3 Qcg6 Rc4 Rb1 Rc8 Rb3 Rc7 Bd2 c2+ Kc1 e2 Bb4 e1B Rd3 Nf6 Rh2 Rg8 h8B Nh5 Be5 Rh8 h7 Ng7 Bbd6 Bb4 Rh1 Nf3 Rf1 Ng1 Bc3 Rg8 Bde5 Bd8 h8B Bh4 Q4h5 Bf5 Qhg4 Nh5 Bhf6 Rh8 Bg5 Ng7 Bh6 Ke7 f8N Nh3 Qd6+ Kf7 Qdg6+ Kg8 Nfd7 Rc5 Bg5 Rc7 Be7 Qa7 Bf8 Qa8 Kd2 c1B+ Kc2 Be3 Kd1 Bd4 Kc1 Be3+ Rd2 Ra7 Qff3 Bec5 Ne4 Rc7 Rd3 Be6 Qe3 Bd4 Rf7 Bf5 Nf2 Bdc5 Qef3 Bce7 Qe3 Beg5 Qef4 Bh6 Qh7+
R1nbr3/4r1Qn/2NB3Q/N2q3B/1NR2p2/k2QPnQ1/1N1N3R/K3nb2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Na6 cxd3 Bc5 d4 Bf8 d5 Nb8 d4 Ke7 Kd2 c5 Kc2 f5 Kb2 g5 h4 g4 d6+ Ke6 e3 Kd5 e6 f4 a6 g3 b6 c4 e7 g2 e8Q Qd7 a7 Qb7 d7 Bg7 d8N Qa6 h6 Qb7 h5 Qe7 h7 Bd7 b7 Nc6 b8N Qe6 h6 Qe4 Nh3 g1N Nd2 Nb4 Ndc6 Bc8 Rh2 Ne7 Na5 Nec6 Be2 Qg2 Na6 Ne7 Qg6 Nc2 Ra4 Nb4 Nf2 c3+ Ka1 c2 Nd3 Nf3 Ba3 c1N Nb2 Bh3 Qg3 Rae8 a8R Bf6 Qb3+ Kd6 d5 Nc8 Qd3 Re7 Bd1 Rd8 h8Q Rde8 h7 Qh1 Be2 Bf1 Qhg7 Bg5 h8Q Bh4 Qf5 Nd3 Qhh6+ Bf6 Qfh7 Nde1 Qd3 Qg2 Nb8 Kc5 d6 Qh1 d7 Qg2 d8N Bh4 Nbc4 Kb5 Ndc6 Nd5 Na6 Nf6 Bd6 Nh7 Nab4 Bg5 Ra3 Bf6+ Rc3 Ka4 Ndb3 Bg5 Nb2+ Ka3 Rc4 Bh4 Qf2 Qg5 Qg3 Qd5 Bd1 Rd7 Be2 Bd8 Bd1 Rde7 Be2 Nh4 Bh5 Nhf3 Nd2+
6r1/1R2qQ1n/1Rb5/R1RB1N2/2pN1BrQ/KN1PnN1b/N7/2r1Br1k b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 b4 Kd7 b6 Kd6 f6 Ke5 b7 Kf4 d6 Kg3 d3 a5 Kd2 h5 Kc3 c5 Kb3 e5 f7 c4+ Ka3 e4 f8B a4 d7 e3 b5 h4 b6 e2 Nd2 e1R Qh5 h3 Nb3 h2 Bf4+ Kf2 Nf3 Re5 Bg2 Nh6 g8Q Rc5 g7 Rf5 g6 Rh7 Bb4 Nc6 b8N Na7 b7 Qg5 d8N Qe7 Ndc6 Ng4 Ncd4 Ne3 Rhb1 h1B Qf7 Nc6 g8R Ne5 g7 Nd7 Na6 Nf8 b8R Rh6 Rb6 Nh7 Rf8 Rg6 g8N Rg4 Nh6 Be6 Rh8 Rag8 Qh2 Rf6 Nhf5 Bd7 Nfd2 Bc6 Bd5+ Bg2 Qh6 Bh3 N2f3 Kg2 Qh4 Nf1 Ra2+ Kh1 Rbb2 Ne3 Rb7 Qe8 Be1 Qe7+ Nb4 R8g6 Ra8 Rg8 Nd6 Rf5 Ra5 Rf6 Ra1 Rf5 Na2 Rf6 Kb4 a3 Rc5 Rf5 Nc3 a2 Ka3 Rf6 N6f5 Rb8 Rc1 a1R+ Na2 Rbg8 Rcc2 Rc1 Re2 Nd1 Re5 Ne3 Na1 Rg1 R2b6 Rfg6 Nab3 Rf1 Rb5 Rg2 Ra5 R2g4 Re6 Be8 Rea6 Bc6 Rab6
2N1B1kn/1nN1n3/B1P5/b3Brp1/R3BNR1/3n1B2/q1Q4K/r1b1R1NQ b - - 0 1 legal: proof: d4 b5 h4 f5 a4 e5 axb5 g5 g4 c5 dxc5 e4 gxf5 e3 h5 Bb7 fxe3 Qb6 e4 Qd8 e5 Bd5 Be3 Bf7 Bc1 Bg6 hxg6 Qe7 Rh3 Qf6 Rh1 Qd8 Kf2 h5 Kg2 d5 b4 a5 c4 d4 e4 a4 c6 h4 g7 Kf7 b6 h3+ Kh2 a3 c7 d3 c8N d2 b7 a2 c5 Qf6 c6 Ra6 b5 Rh4 b6 Nd7 b8Q Qd8 e6+ Ke8 e5 Ra8 e7 Kf7 e6+ Kf6 e8B Qe7 b7 Raa4 Qc2 d1N Ba6 Qf7 e7 Rhf4 Bb2+ Nc3 Na3 Nh6 g8B Kg7 Bh7 Nc5 f6+ Kh8 Qa7 Nd5 b8R Rf5 Nb5 Nb7 Nc7 Ra5 Re1 a1B Be5 Bb2 Ra8 Bc1 Qaf2 Ra2 Qh4 Ra1 Ra7 Qg8 Bh5 Nf7 e8B Bb4 Bf3 Ne7 Re4 Ba5 Rg4 Nfd6 Ra8 Qa2 Qh5 Nf7 Qh6 Rf4 Bhe4+ Kg8 Qh4 Nh8 f7+ Kf8 Qh5 Rf6 Ra7 Kg7 f8N Kg8 Nfe6 Rf5 Kg3 h2 Nf4 Bad2 Ngh3 Ba5 Re1 h1N+ Kh2 Nf2 Ng1 Nd3 Qh3 Qb2 Qhg2 Qa2 Qh1 Bb4 Bb5 Bbd2 Ra4 Ba5 Ba6
n5QR/R4q1B/1nN4k/2KQR1b1/2NnNb2/4Q3/1PQBRpq1/rR4b1 b - - 0 1 legal: proof: c4 a5 g4 f5 f4 g5 a4 b5 axb5 e5 fxe5 d5 cxd5 f4 h3 Bf5 gxf5 g4 Nf3 g3 Ng1 Ra6 Qa4 Rg6 Qd1 Rg4 hxg4 Kd7 Nc3 Ke7 Nb1 Ke8 d4 Kf7 Kd2 Kg7 Kd3 h5 Kc4 c5 e4 h4 b6 h3 f6+ Kg6 e6 h2 g5 g2 b7 f3 e7 a4 e8R a3 e5 f2 d6 a2 f7 Qe7 d5 Kh7 d7 Nf6 d8N Ne4 g6+ Kg7 e6 Nc3 d6 Qd7 e7 Rh7 Qc2 Rh8 Nf3 Rh6 Nbd2 Rh5 Nc6 Nd5 Ng5 Na6 b8Q Kh6 g7 Nac7 g8Q Na8 Qbb3 Ndb6+ Kb5 c4 Qe3 c3 Nc4 Bg7 f8R Be5 Bd3 Bf4 Kc5 Qa7 Rg1 h1Q d7 Qh2 Re1 g1B d8Q Qg2 Qdd5 Rh1 Ne4 Qc7 Rb1 a1N Re2 Qd7 Bd2 Nb3+ Kb4 Qc7 Rf7 Nd4 Kc5 Qd7 Rc8 Qe8 Rg7 Qf7 e8R Bg5 Re5 Bf4 Qd1 c2 Rf8 c1B Qc2 Qe6 Ra7 Qf7 Rd8 Nb5 Qh8+ Qh7 Ba5 Qf3 Qed2 Nd4 Ned6 Bh2 Ra1 Qg2 Bg6 Rf1 Ne4 Bg5 Qf4 Be3 Bd2 Rh1 Qg3 Bef4 Qe3 Rd1 Qe8 Qb7 Bh7 Bg1 Qef7 Re1 Rh8 Rc1 Qg8 Qf7 Qcb3 Rc3 Rf1 Rc1 Qc2 Ra1 Rb1
1q2kRNn/BB5N/2bnBBB1/8/bQR1Q3/Pq1p4/Nn5r/1KRq2R1 b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Kd8 f7 Kc7 bxa3 Kc6 a4 Qc7 a5 Qd8 f5 b5 Qd2 Ra6 Qe2 Kb7 Qd2 Rf6 Qd3 Kc6 Qd1 Rh6 f6 Rh5 Qd4 Rg5 Qd1 Rf5 gxf5 g5 h4 g4 Nh3 Bh6 Ng1 Bg5 hxg5 Qc7 Ba3 Qb6 Bc1 Qd8 Kd2 e5 f8B d5 c4 Kd7 Kc2 h5 f7 h4 a3 g3 f6 d4 g6 e4 a6 b4 c6+ Kc7 a7 e3 a8B e2 g7 e1Q c5 h3 Bb2 g2 Qe2 h2 Qe4 Bh3 Nc3 Rh7 Bd3 Bd7 Rc1 b3+ Kb1 Qe3 Bb7 Na6 Nf3 g1Q Na2 Qd1 Rg1 h1B Ng5 Rh2 Nh7 Nh6 g8N Qb8 Be7 Nb4 f8Q Bf3 f7 Bg2 Bc2 Nd3 Bf6 Bf3 Bc3 b2 Qfe7 Bh1 f8R Nf7 Bd2 Nh8 Rf7 Qg3 Be3 Bg2 Qg4 Bd5 Qee4 Qh3 Qh4 Bb3 Qe1 Ba4 Qb4 Qhf3 Be5+ Kd8 c7+ Ke8 c8B Qh3 c6 Qg3 c7 Bdc6 Be6 Qh3 Bf6 Qg3 Nc3 Qgf3 Ka2 b1N Ka1 Nd2 Na2 Nc4 Kb1 Ndb2 Bd3 Qd8 c8R Nd6 Rcc7 Qb8 Bf2 Bcb5 Rc4 Bd7 Qe2 Bdc6 Bg6 d3 Ba7 Qb3 Qe4 Qfd1 Rf8#
bK1NR2k/3Qr1Bb/1QR5/3BQ1N1/Nr1p1b2/B2BNN2/q1P4q/r3n3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 Kg7 Kd4 a5 Ke5 h5 f4 d5 g4 d4 b4 h4 b6 e6 b7 h3 b5 a4 f6+ Kh7 c6 h2 c7 a3 g6+ Kh6 f7 Kg7 f5 a2 g5 Qe7 b6 Ra6 Nc3 Rh3 f6+ Kh8 g7+ Kh7 Nf3 Rh4 Na4 Ra7 Ba3 Ra8 g6+ Kh6 Qe1 Rf4 Bd3 Na6 b8Q Nc5 b7 Ra7 Rb1 a1Q Rb6 Qa2 Rc6 Ra6 Qe2 Rb6 Re1 h1B Qe3 Bd7 c8Q Rb4 Qcc7 Be8 Qd7 Qd8 Qbc7 Ne7 Kd6 e5 g8B e4 g7 Qb8 Qe2 e3 Qh2+ Rh4 Qe5 Re4 Re2 Qa8 Qb6 Nf5+ Kc7 Be7 f8N Bg6 b8N Bh7 f7+ Bd6+ Kc8 Qa7 Re1 e2 Ne6 Qa5 f8B Qb5 Rf1 e1R Neg5 Ra1 Bd5 Kg6 g8N Ng7 Ne7+ Kh6 B3c4 Nd3 Re1 Qc5 Re2 Ne1 Bd3 Qc3 Re3 Qd2 Nf5+ Kg6 Kb7 Qh2 Re2 Bg2 Ne3 Kh6 Rc3 Bh1 Nc6 Bc7 Nd8+ Bd6 Qef5 Re7 Rc6 Bg2 Be6 Bf4 Qe5 Bf5 Kb8 Kg6 Ngf7 Kh7 N7g5+ Kh8 Bd5 Bh1 Rg2 Bh7 Rg3 Rb2 Rh3 Rbb1 Rhh6 Rb4 Rhe6 Rf7 Re8 Re7 Nge6 Bg2 Neg5 Rb3 Rc7 Rbb1 Bb3 Qh6 Nd2 Ba8 Rc6 Qh3 Bd5 Qh2 Ndf3 Rb4 Bxg7#
R1Qkn1Bb/q3n1Nr/1B1b1NBB/4Rb2/2p5/2N2P2/1qBR1KNq/2Q5 b - - 0 1 illegal: No possible last move
1RR1RB2/2bq1n2/qn4BB/NP5N/q2B4/1RQp2Rb/1rk1b2K/5NQ1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 h4 f4 hxg5 f3 e4 Kf7 g6+ Ke8 g5 Ra6 g7 Rh6 g6 Rh5 Qd2 Rg5 Qd1 Rg3 fxg3 Nc6 g4 Nb8 g5 f2+ Kd2 Nh6 Bc4 f1N+ Ke1 Ne3 Bf1 Nef5 exf5 Ng8 Kf2 d5 Kg2 Kd7 c4 h5 b4 e5 b6 Kc6 b7 a4 b5+ Kd7 f6 Ke6 f7 Kf5 c6 Ke4 c5 d4 c7 a3 c6 h4 Rh3 a2 Kh2 Rh7 Na3 Bf5 c8Q Qe8 c7 Na6 b8B Bd6 f8B Nc5 Rb1 a1Q Nf3 Qd7 Rg3 h3 Nc4 Qa4 Ba7 Nh6 g8R Nf7 g7 d3 Nfd2+ Kd4 g6 Kc3 Bg2 e4 Nf1 e3 Na5 e2 Be4 e1Q Bh6 Bf4 Qg4 Kc2 Rb3 Qea1 Rh8 Qf6 g8N Qa6 g7 Bd6 Nf6 Be6 Kh1 h2 g8R Rg7 Qg5 Bh3 Nh5 Rg6 Bb6 Rf6 Qe3 Rf2 Bg6 Rg2 Qg1 Rf2 Qb7 Rg2 c8R Bc7 Rb8 Qe8 Bfg7 Kd1 Ra3 Rb2 Qc6 Nd7 Bbd4 Nb6 Rb3 Qe6 Rgc8 Qd7 Qb7 Kc2 Rhe8 Be6 Kg2 h1B+ Kh2 Bf3 Bf8 Bh3 Qe4 Bfg4 Qe1 Be2 Qc3+
4RN2/1br2p2/1q1q2bR/k1Q2BK1/3NRNQ1/3BN1R1/3P4/Nrb1B1qn b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Nc6 d5 Na5 bxa5 Ba6 Kf2 Bb7 Ke1 Bc8 Kf2 Kd7 Kg3 c5 Kh4 Kc7 g4 h5 e4 a3 e6 a2 b6+ Kb7 e7 c4 e8B Ka6 e5 Ne7 b7 Rg8 b8N+ Ka7 d6 c3 g6 c2 g5 Rh8 d7 Kb7 a6+ Kb6 g7 Rh6 g8Q Ra7 g6 Ka5 g7 Re6 Nf3 Ka4 Ba3 Nd5+ Be7 Nf4 Na3 Rf6 e6 Qb6 d8N+ Bd7 Bd3 Rh6 Nd4 Ng6+ Kg5 h4 Qg4 c1Q Nac2 Bc6 Bd7 Qcb2 Rae1 a1Q Re4 Rc7 a7 h3 a8N Q6b4 Nb6+ Ka5 Nd5 h2 Nde3 Qg1 Na1 Qd6 Qh7 Bd5 g8R Ne5 Qf5 Bb7 Bf6 Rh4 e7 Qbb6 e8R Rh6 N8e6 Be7 B3b5 Nd3 Nf4 Nf2 Qc5 Rh3 Bf5 Rg3 Nd1 Rb3 Ne3 Rb1 Nd7 Bf8 Bd8 Bg7 Nf8 Be5 Nf3 Bb2 Nd4 Bc1 Rg6 Qf1 Rg1 h1B Rg3 Qg1 Rh6 Bf3 Be7 Nh1 Bf6 Bd1 Bd8 Bc2 Bd3+ Rb5 Kh5 Bb1 Bh4 Bc2 Kg5 Bb1 Qc4 Bc2 Qc6 Rb1 Qc5+ Ka4 Rg2 Nf2 Bg6 Ba3 Bf1 Rc8 R4e6 Nh1 Be1 Bc1 Rg3 Rc7 Bb5+ Ka5 Bh7 Bg6 Re4 Bh5 Bf5 Bg6 Bd3+
4rRN1/2qBPKB1/R2qn1NN/2kr1np1/3R1B1Q/1b3r2/2BQ2B1/3N1n2 b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 f5 gxf5 e5 a4 e4 axb5 e3 h4 g6 h5 Ba6 h6 Bg7 hxg7 Ke7 fxe3 Ke8 e4 Bb7 e5 Bc8 Kf2 Kd7 Kf3 a5 Kg4 c5 b4 h6 d4 c4 e4 c3 b6 c2 b7 a4 e6+ Kd6 b5 a3 e5+ Ke7 f6+ Ke8 f7+ Ke7 f8R h5+ Kg5 a2 b6 h4 Nf3 h3 Bg2 h2 Nc3 Ra6 Nh4 Qd6 Bb2 c1N Qd2 Nh6 g8B Qa3 Bh7 Nb3 Rhd1 Nc6 b8N h1R b7 Rh2 Nd7 Nb4 b8B Nd3 Nf6 Nf5 Bc7 Nd6 Kh6 Nf2 Kg7 Qa4 Bb8 Qe8 Ng8+ Kd8 e7+ Kd7 Kf6 Nf5+ d6 Qd8 d5 Rc6 Kf7 Nc5 Bc7 Ra6 Bb8 Qc7 e8B+ Kd8+ d7 g5 e6 Rh3 Ng6 Ra5 Qd4 Nh1 Qh4 Re3 Rd4 Nhg3 Nd1 Nf1 Bc3 Rf3 Bb2 Qb6 Bf4 Qd6 e7+ Kc7 d8N Kb6 Bd7 Ne6 Bc3 Qc7 d6 Bb7 Rd5 Bc6 Bg7 Ba4 Rd4 Re5 Ke8 Bc2 Nf7 Rd5 Nfh6 Kc5 Kf7 Ba4 Be8 Bb3 d7 Qd6 d8Q Qc7 Bd7 Qd6 Rb1 a1Q Rc1+ Qc3 Ra1 Qc2 Ra6 Qc1 Bb5 Qc2 Qa5 Qc1 Qd2 Qc3 Be8 Qa5 Bc6 Qac7 Bd7 Qcc6 Rb8 Bc2 Nf8 Bb3 Nf6 N5g3 Bc2 Nf5 Ng6 Rd8 Nfg8 Qcc7 Ba4 Rd7 Rf8 Rd8 Bc6 Re8 Bd7
2RQ3Q/2rp4/4kbnN/bBqR3b/3q1R2/nQ4B1/1BQN2PK/1q3Q1R b - - 0 1 legal: proof: h4 b5 e4 c5 f4 f5 d4 a5 dxc5 g5 a4 Nf6 axb5 Nd5 h5 Nf6 fxg5 Ra6 exf5 Rc6 Ke2 Ng8 Ke1 Rg6 hxg6 Bg7 Be2 Bh6 Bf1 Bf8 Kf2 e5 Kg3 Ke7 c4 h5 b4 h4+ Kh2 e4 c6 h3 f6+ Ke6 c7 e3 g7 e2 b6 e1Q f7 a4 b5 a3 g6 a2 b7 Kf5 b6 Kf6 c5 Qee8 c6 Ke5 Bb2+ Ke6 Bb5 Ke7 Nf3 Na6 b8Q Bb7 c8Q Nc7 Nh4 Ke6 Qf1 Qee7 Nd2 Qc5 Nf5 Ne7 Rd1 a1B g8Q Rh4 g7 Ng6 Qa8 Rc4 Nh6 Qh4 Qh8 Qhd4 g8Q Be7 Qa4 Bf6 Qgd8 Rc1 f8R Ba8 Kg3 h2 b7 Rc4 b8B Bb7 Bc1 Bc3 Bb2 Ba5 Qb3 Ba6 Ba4 Nb5 c7 Na3 Bb5 Be5+ Rf4 Bf6 Qa4 Rc1 Qb7 Rc4 c8R Rc1 Qbc7 Bb7 Qc2 Bf3 Qb7 Bg4 Qbf3 Bh5 Q3d3 Qcd5 Qcb3 Rc7 Qdc2 Q5c4 Nf3 Qc5 Rd5 Q4d4 Nd2 Nb1 Qfd1 Bb6 Rhf1 h1Q Rh4 Rc6 Bf4 Qhg1 Rh1 Rc7 Rf3 Qf1 Kh2 Ba5 Bg3 Na3 Rf4 Qe1 Qdf3 Qb1 Qf1
1rQ1bnn1/KQr2r2/5PBR/BNR2p1N/7b/R1R1R3/QBb1B3/3k1n2 b - - 0 1 legal: proof: h4 d5 f4 g5 e4 b5 c4 e5 fxe5 f5 hxg5 b4 e6 b3 cxd5 Qe7 e5 Qf6 exf6 Bh6 axb3 Kd8 b4 Bf8 b5 Ke8 Ke2 c5 Kd3 h5 Kc4 a5 g4 h4 d4 a4 b4 h3 d6 h2 d7+ Kd8 e7+ Kc7 e8R Kd6 d8R+ Nd7 g6 a3 d5 a2 g7 Ba6 g5 Ra7 g6 Rc7 Qf3 Ne7 g8Q Ke5 g7 Rh3 d6 Nb8 d7 Rh7 Bb2+ Kd6 Be2 Rh8 Na3 Rh6 Rc8 Rh8 d8B Nd7 Nh3 Rh7 Rac1 a1R Rc3 Ke5 Nf4 Rb1 Nh5 Bb7 b6 Bc6 Qf2 Ke4 b7 Ba4 b8Q Bc2 Kb5 c4 Qf3+ Kd4 Qe6 Ng8 Ka6 Bc5 b5 Nf8 b6 Bd6 b7 Bg3 Qg2 Bh4 Ka7 Rf7 Ba5 Rc7 Rh3+ c3 Qa2 Rf7 Rc1 h1B Rc5 Rc7 Qc6 Bf3 Qce6 Bc6 Qec8 Bb5 Re6 Be8 Ra6 Rf7 Nb5+ Ke4 Rh2 Ke3 Qbc7 Kd2 b8R Bf2 Rh3 Bh4 Q7b7 Rc7 Re3 Rf7 Rh1 Rc7 Bf1 Kd1 Ra8 Rf7 Rac6 Bf2 Nd6 Rd7 Rb5 Rd8 Ba1 Be4 Ng3 Be1 Bc7 Bc2 Qb6 Kc1 Be2 Rb4 Kb8 Be4 Ra3 Rd7 Rh6 Re7 Nh5 Bh4 Ka7 c2 Reb3 Kd2 Bb2 c1N Re3 Bc2 Rcc3 Nb3 Rbc5 Rb5 Qba6 Rb8 Qab7 Rd7 Ba5 Rc7 Nb5 Ke1 Ree5 Nd2 Re6 Nf1 Ree3 Ne7 g8B Rf7 Bh7 Ng8 Bg6 Kd2 Bc4 Kd1 Be2+
1K1Q4/1br1Q1Qn/1nR2pb1/RrnRr2N/3P4/Q1QN3k/bN2R3/1BB5 b - - 0 1 legal: proof: h4 d5 f4 g5 hxg5 e5 fxe5 b5 a4 Na6 axb5 Nb8 c3 Qe7 Rh4 Qd7 Rh1 Qd8 Na3 c5 Nh3 d4 Nb1 c4 Ng1 Bb4 Rh3 d3 Rh1 Qd4 cxd4 c3 Ra6 c2 Ra1 Bc3 dxc3 Kf8 Rh2 Ke7 Rh1 Ke8 Kd2 Kd7 Ke3 Ke6 Ke4 a5 g4 h5 b4 h4 g6 d2 c4 a4 g7 a3 g5 a2 g6 h3 b6 h2 b5 Ra3 c5 Bb7+ c6 Ra6 Nc3 Ra5 Qe1 d1B Nh3 Rh6 Nf2 Ra8 Na4 Bc8 c7 Ne7 g8N Rh7 g7 Rh6 b7 Na6 b8Q Bd7 c8R Nc6 b6 Rh8 b7 Nab4 Nd3 Rh6 Qc3 Na6 Qa7 Rf6 b8Q Rg6 Nab2 Ncb4 Nf6 Nc7 g8Q Be8 Nh5 Nbd5 Qaa3 Nb6 Qg7 Ncd5 e3 Rg5 Rc6+ Kd7 Bg2 Ra5 Qa8 Rc5 e6+ Ke7 Re1 h1B Re2 Nf6+ Kf4 Rd5 e4 Nh7 Bh3 Rg5 e5 Be4 Bf5 Bd5 Bd2 c1R Qc8 Rb1 Bc1 B1b3 Qca8 Bbc4 Q8a5 Ba6 Q5b4 Bb7 Be4 Kd8 e7+ Kd7 Bg6 Bb3 Ke4 f6 Qba5 Bef7 e8R Rf5 Rd8+ Ke7 e6 Re5+ Kf4 Bc2 Rd5 Bb3 Rcd6 Rc7 Rc6+ Ke8 Be4 Bg6 e7 Bc4 Qh8+ Kf7 Qd8 Bf5 Qa7 Kg6 e8Q+ Kh6 Qf7 Bg6 Qfe7 Bb3 Ke3 Kg5 Qg7 Kg4 Qae7 Re6 Qaa3 Kh3 Kf4 Bf7 Kf5 Bc2 Nd1 Rb5 N1b2 Bb1 Qed7 Re8 Q7e7 Bg6+ Ke6 Ng5+ Kd6 Nh7 Qef7 Re5 Qfe7 Bc2 Rb1 Bf7 Bg6 a1N Be4 Nb3 Ra1 Nc5 Bg6 Bb3 Ra2 Rc8 Be4 Bg6 Ra1 Ra8 Kc7 Ra7 Kb8 Bc4 Qab4 Bb3 Ra5 Ba2 Qa4 Ba8 Qab4 Rc7 Qba3 Bb7 Ne1+ Kh4 Bb1 Kg4 Ned3 Kh4 Bf4 Kh3 Bc1
kbB1r3/Q1RbN3/Q2KRbQ1/2r2Q2/P2N2b1/B3RN2/q1n1Np2/4rQ2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 b5 Kf4 c5 a4 Kc7 d4 Kb7 h4 f5 e4 g6 a6+ Ka7 h6 c4 h5 b4 e6 c3 Ke5 g5 d6 f4 e7 b3 e8Q b2 d5 f3 d7 f2 d6 c2 h7 g4 h6 g3 Ne2 g2 Nd2 b1B Ra3 g1R Bh3 Re1 Re3 Nf6 Qg6 Nh5 Nf3 Qh4 d8Q Ng7 d7 Qg4 Ba3 Rg8 h8N c1B h7 Rg1 Qf1 Ne6 Qa5 Bh6 d8N Nc5 Ne6 Qf5+ Kd6 Re8 e5 Bb2 N6d4 Nd3 e6 Bd7 e7 Qf7 Qaf5 Nc6 Rh2 Rec8 e8R Ndb4 R8e6 Nc2 Rh1 Kb8 a7+ Kb7 Rh2 Bg5 Rg2 Bf6 Rg5 Rc7 Bg4 Re8 a8Q+ Kb6 Qaa5+ Kb7 Qb6+ Ka8 Rh5 Na7 Rh6 Bc6 Re7 Rcc8 Rc7 Bd7 Qfh5 Bd8 Qg7 Re5 Rc5 Qf5 Qg2 Nb4 Nc2 Bb5 Ng6 Rc1 Qf1 Ba1 Qf7 Bc3 Qc4 Re8 h8Q Bc6 Qhg8 Re1 Qca6 Qf7 Qg5 Bg7 Ncd4 Bf5 Bh3 Bh8 Qe7 Nc2 Qg5 Qa2 Ne7 Bb5 Rf6 Rc7 Q8g6 Rc8 Rc6 Bc7+ Kc5 Bb8 Qg4 Rc7 Kd6 Be6 Qf4 Bg8 Bd7 Be6 Bc8 Bg4 Rfe6 Bf6 Rc4 Bc6 Qff5 Bd7 Qbb5 Rb7+ Rc7 Rb6+ Qc6+ Rb7 Qcc5 Rb5 Qcb6 Rc5 Qbxa7+
2bRQq1n/6b1/RNNn1B2/K5Q1/PR4p1/NBq3RB/2rBq3/1q1k1B2 b - - 0 1 legal: proof: c4 b5 d4 c5 g4 f5 b4 a5 bxa5 d5 cxd5 h5 gxh5 c4 e4 Ra7 exf5 Ra6 Ba3 Rc6 Bc1 Rc5 dxc5 Ba6 Qd2 Bb7 Qd1 Bc8 Kd2 Kd7 Kc3 g5 Kb4 e5 h4 c3 f4 c2 f6 e4 f7 e3 d6 Kc6 d7 e2 f5 e1Q+ Qd2 Be7 f8Q Qe5 h6 Qe2 f6 Ba6 h5 Qe3 h7 Bb7 h6 Qe1 a6 Qe3 f7 Qd3 a7 Kd5 a8B Kd4 Na3 Qc8 d8R+ Qd7 Rh3 Na6+ Ka5 b4 c6 b3 c7 b2 c8B b1Q Rg3 Bf6 Qe8 Nc5 f8N Qd6 Nd7 Bg7 Nb6 Ne7 Bch3 g4 Qg5 Kc3 Nf3 Bc8 Bd5 Ne4 Nd4 Ng6 Nc6 Qf8 Bb3 Nd6 Be3 Rg8 h8B c1Q h7 Qe2 Bd2+ Kb2 Rd3 Qc4 Rd4 Qc3+ Rb4 Bh6 Bf6 Nh8 Nb5 Rg6 a4 Bg7 Ra3 Bb7 Ra8 Bc8 Ra6 Rh6 Bhg2 Rh2 Bh3 Ng6 h8R Rg2 Ba2+ Kc2 Rb3 Kd1 Na3 Qca1 Rg3 Qc3 Rg8 Nh8 Bf4 Qee4 Bb3+ Rc2 Bd2 Qe2 Qe7 Qf7 Rd8 Qf8 Qe8
3q1Rq1/4B2b/rp1QR1BQ/2N1Rnrb/1P1N1K2/r4Q2/1RBRB3/6rk b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 hxg5 Nc6 c4 Nb8 cxd5 Bh6 Bc4 Bg7 Bf1 Bf8 b4 Bg7 b5 Bf6 a3 Bc3 Be2 a5 Bf1 Na6 bxa6 Bb4 axb4 Be6 Bb5+ Bd7 Bf1 Bc8 Ke2 Kf7 Kf3 e5 g4 h5 d4 c5 a7 b6 f6 Kg6 f7 c4 f8Q h4 d6 a4 d7 c3 d5 h3 d6 h2 Be2 a3 Ra2 e4+ Kf4 e3 Nf3 c2 Re1 h1B Rb2 a2 Qh6+ Kf7 g6+ Kf6 g7+ Kf7 g5 a1Q g6+ Ke6 Nc3 Qe7 d8R Qa2 d7 Qe8 Nd4+ Kf6 Na4 Qae6 Nc5 Ne7 g8R Be4 g7+ Bg6 Bd2 c1R Rf8+ Q6f7 g8B Nf5 Bh7 Rg8 f3 Qe7 Rde8 Rc3 d8R Ra3 Rd5 Qd8 Ree5 Bd7 Qb3 Be8 Qc3 Rc8 a8B Rg7 Bc6 Rca8 Ba4 Ra6 Bc2 Rg8 Qh1 Bh5 Bg6 Bc6 Rd7 Be4 Bc1 Bg4 Qh6 Bh5 Rde7 Bd3 Rd1 Rg7 Rd2 Rg8 Bf1 e2 Qb3 e1R Be2 Rg1 Qd5 Ng7 Qd6+ Ne6+ Ke3 Bb5+ Bgd3+ R1g6 f4 Ra8 f5 R8a6 Rd1 Rg7 Rfe8 Qg8 Bd2 Bc6 Be1 Bh1 Rd2 Be4 Qh8 Kg5 f6+ Bf5 f7 Qf8 Nc6 Qg8 f8Q Nd4 Rf7 Qh7 R8e6 Qg8 Bf1 Kg4 Bh4 Be4 Be7 Kg3 Be2 Kg2 Qh6 Kh1 Rf4 Rg1 Qf7 Nf3 Nd4 Bh7 Qf8 R7g5 Rff6 Raa1 Bg6 Nh4 Rf2 R1a4 Qf4 Raa1 Qg3 R1a5 Rf8 Ra3+ Kf4 Nf5 Qf3+
QN1bQKQ1/1B1r4/5QbB/1NNnQ3/Br5k/2Np2n1/3r1P1n/4RrR1 b - - 0 1 legal: proof: d4 b5 e4 f5 exf5 c5 dxc5 g6 a4 Nf6 axb5 Ng8 fxg6 Bg7 h4 Qc7 g4 Qf4 h5 Qc7 g5 Bf8 g7 Qb7 Nc3 Qc6 Nb1 Qg6 hxg6 Ba6 Bg2 Bb7 Bf1 Bc8 Ke2 d5 Kf3 e5 b4 Ke7 c4 h5 c6 a5 c7 a4 c5 e4+ Kf4 a3 Ke5 e3 b6 d4 b5 e2 c6 e1N b7 h4 b6 a2 Ne2 h3 Nec3 h2 Nd2 Rh5 Bb5 d3 Nb3 Rh6 Qf3 Bf5 c8N+ Ke8 Rg1 h1R Ba4 Rh7 Nc5 R7h4 Na7 Ke7 c7 Nf6 g8Q Nd5 c8B Rb4 g7 Bg6 Nab5 Na6 b8Q Rh7 b7 Ra7 Rb1 a1R Qh8 Rh1 g8Q Ra2 Qa8 Rd2 b8N Rd7 Bb7 Bh6 Qc8 Bf8 Qe3 Kf7 Qd8 Be7 Qhe8+ Kg7 Ke6 Nf3 Qb6 Nh2 Qe5+ Kh7 Qbd6 Bd8 Re1 Rf1 Qc6 Be4 g6+ Kh6 g7 Bh7 g8Q Bg6 Qec7 Kh5 Qe5+ Kh4 Qcd6 Ra2 Bh6 Rd2 Rbc1 Ne7 Kf6 Nc7 Kg7 Ncd5 Kf8 Nf5 Qb6 Ng3 Rcd1 Rh1 Rg1 Nf4 Rde1 Nd5 Rg2 Rf1 Rg1 Nf4 Qbe6 Nd5 Q6f6+
bBK5/3BR2B/r1B1R3/1N4N1/P2k2r1/3p2QQ/b1nN1nB1/Rn1b1n1N b - - 0 1 legal: proof: e4 c5 d4 a5 dxc5 f5 exf5 a4 g4 a3 f6 Kf7 bxa3 Ke6 f7 Ke5 a4 Ke4 a5 Ke5 Bd2 Kd5 Bc1+ Kc6 h4 Kc7 f4 g6 f5 Bg7 g5 Bf6 Rh2 Qf8 Rh3 Qh6 Rh1 Kd8 gxf6 g5 Bh3 g4 Bf1 Qg5 hxg5 Ra7 Be3 Ra6 Bc1 Ra8 Kf2 Kc7 Ke3 Kc6 Ke4 h5 Ke5 b5 f8N d5 a4 e6 c4 g3 a6 g2 a7 b4 g6 d4 g7 b3 f7 d3 f6 h4 Nd2 b2 Qg4 b1B Ne2 g1N Qg3 h3 Nh7 h2 f8N Nh6 g8B Na6 f7 Nb4 Bg2+ Nd5 Ng5 Bc2 Bh7 Rb8 a8B+ Rb7 Bb2 Nh3 Rhe1 h1B Bc1 Kc7 c6 Kb6 Kd6 e5 c7 e4 Nfe6 e3 f8R Ra7 Bc6 Bd1 Rf7 Nf2 N6d4 Nc3 Re7 Rg8 Nb5 Be6 c8B Nhg4 B8d7 Nh2 Bb2 Nb1 Be5 Nf1 c5+ Ka6 Bf4 Ba2 Be5 Raa8 Kc7 Ka5 Kb7 Kb4 Bb8 Ra6 Re6 Rg6 Kc8 Rg7 Ba8 Rg6 c6 Kc5 c7 Rg7 Bac6 Rg6 Qh2 Rg7 Ng3 e2 Bh3 Bf3 Bg2 Rg6 Nh1 Be4 Nh3 Rg4 Ng5 Bed5 Kd8 Bf3 c8Q Bfd5 Qcc7 Bf3 Qh3 Bfd5 Na7 Kd4 Qcg3 Bf3 Kc8 Be4 Bb5 Ba8 Bbc6 Bc2 Rc1 Bd1 Rc5 e1N Rce5 Nc2 Re7 Nh2 R5e6 Nf1 Nb5+
3Kn3/1R4BR/qR1N1Q1q/1q2QP2/1b3B2/n1Qn1b2/RN2Rp1b/2B2k1B b - - 0 1 legal: proof: c4 h5 e4 d5 cxd5 g5 a4 b5 axb5 f5 g4 a5 gxh5 e5 Qf3 Rh6 Qb3 Rf6 Qd1 f4 f3 Rf5 exf5 e4 Bg2 e3 Bf1 Ra6 Bg2 Re6 Bf1 Re4 fxe4 Ba6 Na3 Bb7 Nb1 Bc8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 h4 Kd4 b4 c5 d6 c4 e5 a4 d7 a3 b6 f3 b5 c3 b7 e2 h6 Kd3 h7 f2 h8B c2 e6 a2 b6 Qc7 d8Q+ Bd7 h5 Qc6 h6 Qc3 e7 Qa5 e8R Qb5 h7 Bb4 Na3 Qa5 Bg7 Qd5 h8Q Bc8 Qf6 Qc6 Nf3 Qd5 Qe1 Bf8 Ne5+ Kd4 Rh7 Bd7 Nac4 Bc5 Bg2 Bb4 Nf7+ Kd3 Bh1 Nc6 b8R Nd4 b7 Nb5 Nfd6 Bc6 Kh5 g4 Kg6 Qe5 Kf7 g3 Kf8 g2 Nb2+ Kd4 Re7 Bf3 Ke8 g1B Kd8 Na3 d3 Bh2 Qc3+ Kd5 d4 e1N Rb1 a1Q Ra8 Qe2 b8B Qb5 Re2 Nd3 Ra7 Qa2 Rb7 Qac4 Ra1 Qcc6 Ra2 Qca6 Qh4 Nf6 Qh6 Ne8 Qf6 Nc4 Qe5+ Kc6 d5+ Kc5 Qb3 Na3 Qbc3+ Qc4 Qf8 Qb5 Qff6 Qa6 Bg5 c1Q Bc7 Qf4 B5h6 Qh4 Bc1 Qh6 Nc8 Qg5 d6+ Bd5 d7 Ba5 Rc2 Qh6 Qee1 Bf3 Ke7 Ne5 d8R Bb4 Bd6+ Kd5 Rb6 Qe2 Rd7 Ke4 Rd2 Kf4 Kd8 Kg3 Rdb7 Qeb5 Qe4 Kh3 Re2 Nd3 Bdf4 Bg3 Qfc6 Kh2 Qg6 Kg1 Qgf6 Kf1 Qee5 Bh2 Nd6
4BR2/7N/1Q1P2BB/q1bB1q2/1N3n2/pb3NbB/1QNK2kq/1Qr1R1b1 b - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 Kf2 Na6 Ke1 Nc5 g3 Ne4 fxe5 f4 g4 Ra6 Ra4 Rf6 Ra1 Rf5 gxf5 g4 Nc3 Bd6 Nb1 Ng5 hxg5 Bf8 e4 Kf7 b4 c5 d4 h5 d6 a4 f6 Ke6 d5+ Kf7 d7 Kg6 d6 c4 f7 h4 b6 Kh5 b7 h3 b8N Kh4 b5 Kg3 e6 h2 g6 c3 e5 c2 b6 f3 b7 f2+ Kd2 Be7 f8N Qb6 d8Q Bh4 e7 Rh5 e8B Bf5 g7 Qa6 e6 Ne7 g8B Bg6 Qb6 Bf7 Nh7 Ng6 e7 Rc5 Bh3 f1Q Nf3 Bb3 Nc6 Nf4 b8Q Qa5+ Nb4 Kf2 Bef7 g3 e8B g2 Bg4 g1B Na3 Kg2 Bg6 Bg3 Bd5 Qfb5 Ra2 Qd7 Qe1 Qf5 Qe5 Rc7 Qb2 Bc5 Re1 h1Q Q8b7 Qh2 Qb1 Rc6 Qg7 Rc7 Qgb2 Rc8 Kc3 Rc7 Bd2 c1B Nc2 a3 Be3 Nh5 Bh6 B1e3 Ra1 Bg1 Kd2 Qa8 Re4 Qa5 Rf4 Qd7 Rf8 Nf4 Q1a2 Qf5 Re1 Bcf2 Qab1 Rc3 Na1 Rc1 Nc2 Bc5 Bh3+
2q1QN1n/1B2PQ1N/1Q2nBRN/3b2nR/8/N2q1Rpn/qr4Q1/Q3K2k b - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 g3 Bh6 fxe5 f4 g4 Ra6 Ra3 Rf6 Ra1 Rf5 gxf5 g4 Nf3 Ba6 Ng1 Bg5 hxg5 Bc8 e4 Ke7 b4 h5 d4 c5 f6+ Kf7 d6 Ke6 d5+ Kd7 e6+ Ke8 b6 a4 b5 c4 g6 c3 b7 g3 g7 a3 e5 a2 b6 h4 e7 Kf7 d7 Kg6 e8Q+ Kg5 d6 h3 f7 Kh4 f8N h2 e6 c2 e7 f3 Ba6 Nh6 g8N Nc6 b8Q Nf7 b7 Nd4 Qa8 Ne6 b8Q Bb7 Bb2 c1Q Na3 Bd5 Nh3 Qcc8 Ng5 Kg4 Ngh7 Kh3 Rc1 Kg2 Rc6 a1Q Qb6 Qa2 Nh6 Rg8 Bb7 Nh8 Rf1 h1N Qf7 Nf2 Bf6 Nh3 Qa1 Rg4 Rf2+ Kh1 Rc5 Rb4 Rb5 Qdc7 d8R Rb2 d7 Qc2 Re8 Qd3 d8Q Bc4 Rh5 Bd5 Rc2 Qf5 Rc3 f2+ Kd1 f1N Ke1 Qg6 Rf3 Nd2 Qd7 Qgc2 Rd8 Qd3 Qde8 Ne4 Rd6 Nf4 Bg7 Ng5 Rg6 Nfe6 Bf6 Qcc4 Qac8 Qa6 Qc2 Q6c4 Qcf2 Qc8 Qg2+
1b1K2B1/p2nRQ2/qN2N3/P3B1Nq/2RR2n1/1BB2n1B/4q1nr/4QRk1 b - - 0 1 legal: proof: g4 c5 d4 g5 b4 f5 bxc5 e5 dxe5 b6 h3 Bb7 gxf5 g4 Bf4 g3 Bd2 Bf3 Bc1 Bg4 hxg4 Qf6 Qd2 Qe7 Qd1 Qd8 Kd2 Kf7 Kc3 d5 Kb4 h5 Kb5 g2 a4 h4 f4 h3 e4 d4 c4 d3 e6+ Kf6 c6 h2 c5 d2 a5 Ne7 e5+ Kg7 g5 Nc8 e7 Qd7 e8Q Rh5 f6+ Kh7 e6 Ne7 f7 Kg6 f5+ Kg7 g6 Kh6 g7 Kg5 g8B Kh4 f6 Kg3 Qe1+ Kf4 Bc4 Nf5 e7 Bh6 f8B Bg5 f7 Kg4 Na3 d1N Bd2 Qe6 c7 Qd5 c8R Bf4 Bc3 Qe6 c6 Qe2 c7 Nde3 Nf3 Kh3 Ra2 g1N Bfg7 Kg2 f8N Nd7 Kc6 b5 Bb3 b4 Ne6 Ng4 Nfg5 Nf3 Bge5 Nfe3 Nc4 Rb8 Rf1 h1Q Rd2 Rh2 Qf7 Rb7 e8R Rb5 Bh8 Rf5 Nb6 Be5 Re7 Bd6 Bc4 b3 Rd4 b2 Be5 b1Q Bb3 Rf6 Kb7 Qg6 Kc6 Qh5 Kb7 Qg1 Rf2+ Kh1 Kc6 Qgf1 Kb7 Kg1 Kc6 Nf8 Kb7 Ng2 Kc6 Ng6 Kd7 Nf8+ Kd8 Qa6 Rb8 Rf4 c8B Nd7 Rb7 Bb8 Rc7 Re4 Rcc4 Re3 Qc1 Re1 Qe3 Qd3 Qe4 Rf1 Qe1 Qe2 Nc7 Nc5 Bf5 Nf6 Nce6 Ncd7 Bh3 Ng4 Rxf1+
b7/BNkpNb1K/3Q2BR/5N2/2RQ1N2/Rr2RP2/2n1Rnb1/Bn4bb b - - 0 1 illegal: No possible last move
2k3N1/1N3q1R/1PKnbnB1/2R5/3RNqpB/3B2n1/nQ1n3R/2N1bNQ1 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Na5 axb3 Nc6 b4 Nb8 b5 Ba6 Nf3 Bb7 Ng1 Bc8 h3 a5 Qa4 g5 Qd1 h5 Qf3 Ra6 Qd1 Rc6 Nf3 Rc4 Ng1 Rf4 h4 Rf5 gxf5 g4 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Ke2 e5 Ke3 c5 Ke4 c4 d4 h4 b4 h3 g6 a4 g7 c3 b6 c2 d6 h2 Kd5 a3 b5 a2 b7 e4 Nd2 e3 Ne2 Nh6 g8B Be7 f8R Qa5 f7 Qa4 f6 Qa8 Bh7 Na6 Bg6 Qa7 b8Q Nc5 Rh8 Bd8 Rh7 Ba5 f8N+ Kd8 f7 Qb6 d7 Na4 Ne6+ Ke7 d8R Bb4 f8N+ Nf7 Nd7 Bc3 Ng5 Qf6 Nge4 Qf4 Ndf6 Nc5 Kc6 Be6 d5 Nd7 b6 Ba5 Qe5 Bb4 Rb1 a1Q Qb2 Qa7 Ra1 Bc3 Ra5 Bb4 Rc5 Ba5 Nd4 e2 N4b3 e1N Bd3 Nf3 Nf1 Be1 Bd2 Qa2 Nc1 Qb3 Be3 Nd2 Bf2 Qa2 Bh4 Qb3 Rg1 h1N Rg2 Ng3 Rh2 Qc4 Rdh8 Qb3 Ng8+ Ke8 d6 Nf6 d7+ Kd8 Ne3 Nd6 Nf1 Bf2 Qe1 Qa2 Qe3 Be1 Qg1 Qa7 Rhh5 Qa2 Rhd5 Qc4 Rd4 Qa2 Ne2 c1N Rhh5 Qb3 Rh7 Na2 Nc1 Bf5 Nh6 Qf7 Ng8 Be6 Nh6 Ke7 d8N Ke8 Nb7 Ke7 Na5 Kd8 Nb7+ Kc8 Ng8
2b2r2/4Q2r/1Nqb4/Rb1B1BK1/1pN5/bR1NQQ1r/1NqP1B1k/N6B b - - 0 1 legal: proof: g4 d5 e4 g5 b4 f5 gxf5 a5 bxa5 g4 c4 g3 cxd5 Nf6 h4 Nbd7 f4 Bg7 e5 Nf8 exf6 Bh6 f7+ Kd7 f6 Ne6 f5 Ng5 hxg5 Bf8 Ke2 Kd6 Kf3 Ke5 Kg4 c5 a4 b5 a6 h6 d6 e6 g6 h5+ Kg5 h4 a7 c4 g7 g2 g8B c3 d7 h3 a5 b4 a6 h2 Nf3+ Ke4 Ra5 g1B Bh3 c2 Nc3+ Kd3 Qe1 e5 Qe3+ Kc4 Bb2 c1Q Nd4 e4 Nd1 Bg7 Nc2 Qe7 d8Q Bf2 f8N+ Qf7 Ne6 Bb7 Bd4 Rc8 a8B Qd7 a7 Qc6 f7 Rh7 f8Q Bg3 f6 Bd6 Na1 Qc2 f7 Rb8 Qfe7 Bc8 Nc5 Kd5 Qdf8 Bge5 Rg1 h1B Bf5 Bf3 Rh1 Be2 Nb2 Bb5 Rh3 Bg7 Ncd3 Bge5 Qf4 e3 Bb7 e2 a8N e1R Bf2 Rd1 Qh6 Rh1 f8N+ Be6 Re3 Rh3 Ng6 Rf8 Qf3+ Kd4 Nb6 Bc8 Qh1 Bg7 Nge5 Bh8 Nec4 Bhe5 Bfe6 Bg7 Rf3+ Ke4 Nde5 Bc7 Nd1 Rf5+ Kg6 Bd6 Rb3+ Rff3 Ba8 Qd5 Nd3 Bb2 Qhg5 Ba3 N1b2 Qb7 Qc5 Qd5 Qd1 Qb7 Kg5 Rf8 Qg4+ Rf4 Qgf5+ Kf3 Qe3+ Kg2 Bd7 Kh2 Qd5 Rff7 Bf5 Rf8 Qde4 R3h4 Qg4 Qd7 Bh1 Qc6 Bgd5 Rh3 Qgf3
2R4n/1bPBn2N/1K4Nk/3b2bB/1N4Rq/B1bQ1b1Q/N1R3bp/2N4R b - - 0 1 legal: proof: d4 h5 b4 a5 bxa5 b5 f4 f5 g4 c5 dxc5 e5 fxe5 g5 Qd3 f4 Qd1 Rh6 h3 Rf6 h4 Rf5 gxf5 g4 Bg2 Ra6 Bh3 Rg6 Bf1 Rg5 hxg5 Ke7 Bh3 Kf7 Bf1 Ke8 Kd2 Kf7 Kd3 Kg7 Kd4 d5 c4 h4 a4 h3 e4 h2 a6 f3 a5 f2 c6 g3 f6+ Kg6 e6 b4 e5 b3 c5 g2 c7 b2 a7 Ba6 c8Q Nd7 a8R Qb6 e7 Qd8 e8N Bb7 f7 Ngf6 a6 Nh7 c6 Nc5 c7 Bh6 f8N+ Kf7 e6+ Kg8 e7 Kf7 a7 Kg8 g6 Qd7 g7 Ng5 Ng6 Kh7 g8R Nce4 Be2 f1B Bh5 Qd8 Ne2 Nc3 Kc5 d4 Qd3 g1B Kb6 Bfg2 Qch3 Nf7 Ra2 Nh8 Rc8 Bg5 a8N Kh6 Nf6 Bf2 e8B Be1 Nh7 Nd5+ Kc5 Bc3 Bd7 Qf6 Nb6 Ne7 Nd5 Qf4 Nb4 Qh4 Kb6 Bbd5 Nd2 b1B Nb3 Bb7 Rc2 Ba2 Qb5 d3 Ba3 d2 Nbc1 d1B Qbd3 Bb3 Nca2 B3d5 Nec1 B1f3 Nf4 Bgf6 Rg4 Bg5 Ng6
3b1R2/1p2rRn1/bNn1P3/2R4n/1BQ3Qn/4B1BK/Bk5N/1n1NRnR1 b - - 0 1 legal: proof: c4 a5 h4 g5 g4 f5 f4 d5 cxd5 e5 fxe5 f4 b4 Qf6 bxa5 Qf5 gxf5 g4 Rh2 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bd6 Qc2 Bc5 Qd1 Bf8 Kf2 Ke7 Kg2 h5 e4 c5 a4 h4 d4 g3 e6 Kd6 e5+ Ke7 f6+ Kd8 e7+ Kd7 e8R f3+ Kh3 c4 a6 g2 d6 Kc6+ d7 Kd5 g6 f2 a5 c3 g7 c2 f7 Nc6 a7 Nh6 g8Q Bd6 f8R+ Nf7 a8R Ke4 d5 Bb4 a6 Bc3 a7 Rh7 d6 Nh6 Bc4 f1N Rf7 Ba5 Be3 c1N Nf3 Nb3 Rg1 Nbd2 Ba2 Kd3 Ref8 Nf5 d8B Bd7 Be7 Bd8 Nh2 Ng7+ Qg4 Kc2 Rc8 Kb2 Nc3 Nb1 a8N Be6 d7 Bc4 e6 Bb5 Qc4 Ba6 Kg4 h3 Nb6 Kc2 Bb4 Kb2 Rh1 g1N Rc7 Nb8 Rc5 Nf3 Rg1 Nh4 Rb5 Nc6 Rc5 Bf6 d8B Bg5 Bc7 Bd8 Nf3 h2 Kh3 h1N Nh2 Nhg3 Bd6 Na3 Re1 Nb1 Bc7 N3h5 Bg3 Ngf5 Qgg4 Rg7 Rf6 Re7 R6f7 Nfg7 Nd1+
1B3R1Q/r4NR1/N1BPNq2/Bb3rQn/Q2p2p1/2Q2n1k/1b4B1/1K2Bb2 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 c5 axb5 e5 fxe5 h5 g4 Qg5 gxh5 Nd7 d4 Qg2 dxc5 d4 Nh3 Qf3 Ng1 Qd5 cxd5 Nb8 Kd2 Kd7 Kc2 f5 h4 a5 e4 g5 b4 f4 b6 f3 b7 a4 b5 g4 d6 Ke6 b6 a3 c6 f2 c7 a2 h6 Ra6 h7 Ra7 h5 Nf6 h6 Nc6 b8B Ra3 b7 Nd8 Ne2 Rg3 Nf4+ Kf7 e6+ Ke8 e5 Nf7 e7 Kd7 e6+ Kc6 e8Q+ Nd7 e7 Ne5 Qd2 Rb3 Bg2+ Kc5 Na3 f1B Nb5 Re3 Ne6+ Kc4 Rb1 Rg3 Qg5 a1Q Bd2 Re3 Be1 Be2 Rf1 Nf6 Bh1 Bd7 c8Q+ Bc6 Rf4 Nh5 Nbc7 Bf1 Na6 Ra3 Bc7 Nf3 b8B Bb5 Rb2 Rg8 h8N Bg7 h7 Rf8 Nf7 Bh6 h8Q Qa2 Nfd8 Rf5 Bca5+ Kd5 Qc3 Qc4 Qd7 Qc7 Nf7 Qd8 e8B Qf6 Kb1 Ra2 Nfd8 Ke5 Rb4 Nh4 Rf2 Nf3 Nf7+ Ke4 Rc4 Ra4 Rc7 Ra3 Qgg8 Bc1 Qg5 Bb2 Rb7 Bbc4 Qa4 Bb5 Qc5 Rc3 Qca3 Rc7 Qc3 Rd7 Rb6 Ra7 Rb7 Qd8 Bd7 Qf6 Bc6+ Rd5 Ned8 Qf5 Nh6 Qf8 Qgg8 Kf4 Rc7 Kg3 Qg5 Kh3 Rg7 Rc5 Ne6 Qf5+ Qcc2 Ne5 Rf4 Qg6 Rf8 Nf3 Nf7 Qf6 Qc3 Rf5 Bg2+
5B2/bNp5/r1b2QQn/1QP5/2R2RQq/1R3Rp1/rbKBBN2/3nR1k1 b - - 0 1 legal: proof: e4 e5 a4 d5 g4 f5 exf5 h5 gxh5 b5 axb5 e4 d3 Rh7 dxe4 Rh8 exd5 Qd7 d6 Qd8 Kd2 Kd7 h4 g5 b4 a5 c4 a4 f4 a3 h6 g4 h7 g3 b6 Kc6 f6 a2 b7 Qe7 c5 Kd5 b5 Kd4 f7 Ra3 f5 Ra5 h5 Ra6 h6 Qe8 b6 Qe1+ Kc2+ Ke4 f6 Qf2+ Nd2+ Ke3 d7 Ra7 d8Q Nd7 b8R Ra8 b7 Qe1 Nc4+ Kf2 Qg4 Qe6 Bd2 Ne5 Nd6 Bd7 Qe8 Ra6 Rc1 Be7 f8B a1B Qeg6 Bd8 f7 Bg5 Re1 Nf6 Rh4 Rg8 h8R Nc4 h7 Qe7 Nf3 Bc6 Ne5 Bh6 Nd3+ Kg1 Nf2 Nb2 Qc4 Bb5 Rf4 Nd1 Qe2 Bc6 Qeg4 Bb2 Rf3 Rg7 Rg8 Bf4 h8Q Rh7 Qhg7 Bh6 Rh8 Ng8 Q7f6 Bg5 Rf4 Rh3 Rh4 Nh6 Rc4 Rh1 Qff3 Bgf6 Qd4 Ng8 Bg7 Bd5 f8R Bc3 Bh3+ Kh2 Rf1 Ba5 Re4 Nh6 Qfg4 Be5 Rf3 Bb6 Bf8 Ba7 Ref4 Nb2 Ra1 Re1 Bf1 Bc6 Rb1 Qg5 Re8 Qe7 b8Q Kg1 Qb5 Qh4 Nb7 Rd1 Qdd6 Bc3 Re1 Rc1+ Kb3 Rc2 Qdf6 Nd1 Rb2 Bd4 Rb1 Rca2 Rb2 Bc3 Kc2 R2a5 Rbb4 Bb2 Rbb3 Ra2 Be2+
2r2Q2/1Nr3Qk/1pPKR2B/2pNn2Q/3RBq1N/q1Q1Q3/B1b1nb2/1B6 b - - 0 1 illegal: No possible last move
b2b3k/K2P2Q1/1n2nNQ1/5R1q/pB1NQ1BB/B3qr2/2p1R3/Nr3Q1Q b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 f5 e4 e5 exf5 d5 cxd5 e4 a4 e3 axb5 Kf7 dxe3 Bb7 e4 Bc8 e5 Ke8 Ke2 Kf7 Kd3 c5 Kc4 a5 f4 g5 b4 Kg7 h4 g4 e6 g3 f6+ Kh7 h6 g2 d6 a4 f7 Be7 f8Q Qc7 b6 Qa7 Kb5 c4 d7 c3 h5 c2 b7 Bc5 f5 Nc6 b8Q Nd8 f6 Bd6 f7 Bh2 e7 Bb7 e8N Nc6 Qd4 Bf4 Ne2 g1Q Bh3 Qe1 Qbd6 Bd2 Rf1 Nd8 Ba3 Bg2 Rf5 Qd1 Qe4 Bc3 Bg4 Bh3 Nd2 Qd4 Nb3 Rc8 Ka6 Rb8 b5 Qf6 b6 Qfd4 b7 Qf2 Ned4 Qe3 Ka7 Qdg1 Re1 Rc8 b8B Ba5 Na1 Bf1 Re2 Ne7 Qa6 Qh2 Bg3 Bg2 Bh4 Rg8 Qg6+ Kh8 h7 Rc3 Nf6 Nd5 Be1 Qef4 Qb4 Re3 Qg5 Rh3 f8B Qf1 Bf3 Qfg1 Qb1 Qe3 Qef4 Ne6 Bfb4 Bd8 Qgg4 Rg5 Qe5 Kg7 h8Q+ Kf7 h6 Nb6 h7 Kg6 Qf8 Bh1 h8Q Rg3 Qhh4 Rg1 Qf2 Qh5 Qfh4 Bg2 Qh1 Rf1 Qef4 Rg1 Qe8+ Kg7 Bh4 Re1 Qf7+ Kh8 Qgg3 Rg4 Qe5 Re4 Qgg6 Rf4 Bg4 Ba8 Qee4 Rf3 Qe7 Rg1 Qe1 Rgf1 Qf2 Rd1 Qff1 Rb1 Qeg7+
1BK1N2q/B1PR3N/N1n2Q1B/2ppb1Q1/R4rB1/1k2Q2b/4N1B1/1qr1n3 b - - 0 1 legal: proof: b4 a5 e4 b5 h4 g5 hxg5 f5 exf5 c6 a4 Ra7 axb5 Nh6 c4 Ng8 b6 Ra8 d4 c5 d5 Bg7 b5 Ra6 b7 Rc6 dxc6 Bf8 b6 Qc7 Ra4 Qg3 Ra3 Qb3 Ra1 Qb5 cxb5 Bg7 Qa4 Bh6 Qd1 Bf8 Ke2 Kf7 Ke3 e5 Ke4 h5 Kd5 d6 f4 e4 g4 h4 g6+ Ke7 g5 e3 c7 h3 f6+ Kd7 f7 h2 f5 a4 g7 a3 g6 e2 f6 e1Q Qd3 a2 Qe3 Qd1+ Nd2 Be7 f8N+ Ke8 Bg2 Bg4 Ne2 Na6 Kc6 d5 b8N Nh6 Kb7 Be6 g8Q Bd6 g7 Be7 Nc4 Nb4 Nh7+ Bf8 Na6 Kd7 f7 Nd3 Nd6 Nf5 Ne8 Bd6 f8Q Ne1 Qf6 Ne7 Kb8 Bf4 b7 Be5 b6 Kc6 Rf1 Kb5 Rg1 Bf7 Rf1 Nc6+ Kc8 Ka4 b8B h1Q b7 Qb3 Ba7 Qb1 b8B Bg6 Bd2 Bd3 Rf4+ Kb3 Re4 Bc3 Re6 Be5 Rd6 Qh4 Rd7 Qd4 Qeg5 Bf5 Qge6 Rf8 g8B Bh3 Qee7 Qh4 Be6 Qh6 Bg4 Qh5 Qf2 Rf4 Qef6 Qh6 Be3 Qg7 Bd2 Qh8 Qe3+ Qd3 Rc1 a1R Rc4 Rc1 Ra4 Ba1 Bc3 Qb1 Be5+ Kc2 Bd6 Be5 Bf8 Kb2 Bh6 Kc2 Qe4+ Kb3 Qe3+
1R2qBB1/5rr1/4QQ1P/2Np3n/1pQ5/2Q1bn1r/1k1BNN1Q/N1RK1n2 b - - 0 1 illegal: No possible last move, all moves rejected
1B5N/q1rp1NQR/BR2p1B1/2NRP3/3B2r1/3bKQnn/2N4r/1Bk3n1 b - - 0 1 legal: proof: d4 a5 f4 b5 a4 g5 fxg5 c5 dxc5 Ra7 axb5 Ra6 b4 Ra8 bxa5 e6 g4 Bd6 h4 Qb6 h5 Qa7 g6 Bf8 h6 Bg7 hxg7 Qc7 g5 Qd8 Kd2 Ke7 c4 h5 e4 f5 e5 h4 b6 h3 b7 h2 a6 f4 a7 f3 c6 f2 c5 Qf8 c7 Qd8 c6 Rh6 Nf3 Nf6 g8R Rh7 g7 Qf8 g6 Ne4+ Ke3 Qf7 Nbd2 Ng3 Ba6 f1R Ne4 Nh5 Ne1 Nf6 Nc5 Rf2 Qf3 Rc2 Ra5 Rh8 Bb2 Nh5 Bd4 Ng3 Bd3 Rc3 Nc2 Rh7 Rb1 h1N Rb6 Rh2 Rh8 Nf2 g8Q Nh3 g7 Qf5 Qh7 Kf7 Qh6 Rc4 g8N Rc3 Qf8+ Kg6 Rh7 Kg5 Ne7 Qf6 Ng6 Rc4 Bb2 Rg4 Nh8 Qe7 Bg6 Qd6 Nb3 Qa3 Rd5 Qa2 Qg7 Qa4 Qe2 Qa1 Nc5 Qg1+ Kd2 Kf4 Bd4 Qa1 Bg1 Na6 b8B Nb4 Bd4 Ng1 Qg2 Ba6 c8N Nd3 c7 Nf2 Nd6 Bd3 c8B Nfh3 Ndf7 Qa6 Qe2 Qb7 Qg2 Qc7 Ba6 Qb7 Bd6 Rc8 Bb8 Qa8 Bc4 Rc6 Ba2 Rc7 Bb1 Qb7 a8B Qa6 Bb7 Qa7 Ba6 Be2 Kc3 Bd3 Qd2+ Kf3 Qf4+ Ke2 Qf2+ Kd1 Qe3 Bf5 Qf3+ Kc1 Kc4 Ne4 Kd3 Ng3+ Ke3 Be4 Rc6 Bd3 Rb6
NN6/QN6/K6n/6b1/2BBkNBq/R1N1p1BR/RP1pq2q/r1b2Qn1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 f4 Qb6 e4 Kd8 exf5 Kc7 f6 Qc6 f7 Qb6 f5 Bb7 h3 Be4 f6 Bf5 Na3 Kc8 Nb1 Qd8 Qd3 Kc7 gxf5 g4 Qd1 g3 Na3 Ra6 Nb1 Rd6 Be2 Rd4 Bf1 Rg4 hxg4 Kc8 Ke2 Kb7 Ke1 Kc7 Ke2 d5 Kd3 h5 c4 e5 b6+ Kc6 b7 g2 g5 h4 g6 h3 g7 h2 Ra2 a4 Be2 d4 Bf4 a3 Bg4 Nd7 b8N+ Kb7 c6+ Kb6 c5+ Kb5 c7 Bd6 f8Q Rh3+ Bg3 Qc8 f7 Rh7 f6 Qd8 c8N Bc7 c6 Nh6 Nh3 g1B g8B Be3 Qf1 Bg5 Qg7 Kc5 Nd6 Kd5 Nb7 Bb6 c7 e4+ Kc2 e3 Kd3 Ba5 c8N Bd2 Nf4+ Ke5 Kc4 d3 Kb5 Ke4 f8B Bc1 f7 d2 Bd6 Ne5 f8R Nf3 Bc5 Ng1 Ka6 Qd3+ Bc4 Qe2 Bd4 Rh8 Ra1 a2 Nb6 Rg8 Rf6 Rc8 Na8 Rc5 Ka7 Ra5+ Ra6 Ra4 Na3 Ra5 Nb5 Ra3 Ra5 Ra4 Ka6 Ra3 Rb1 a1Q Qd7 Qa2 Ra1 Qb3 Qc7 Qa4 Qc5 Qb4 Qa7 Ra4 Ra3 Qe7 Rc3 Ra1 Ra2 Qf6+ Ne6 Qff2 Rca3 Qg2 Nf4 Qh3 Nbc7 Qh4 Ncd5 Nh3 Rg1 h1Q Rg2 Ng1 Rh2 Qhg2 Rh3 Qh2 Nc3#
1k1BBr2/1B2N2K/3Rb3/NQ2n2N/q1n1p1NQ/qB2N1PR/3R2p1/n6r b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 f5 e4 g5 exf5 Bg7 g3 Be5 g4 Bg3 gxh5 g4 Nc3 Bd6 Nb1 g3 Qf3 g2 Qd1 Bg3 fxg3 Rh6 Qd3 Rh7 Qd1 Rh8 Kf2 e5 Kf3 a5 Ke4 a4 b4 a3 c4 d6 h4 Kd7 h6 Kc7 h5 a2 f6 Bg4 c6 Ra4 c5 Qc8 f7 Qf8 b6+ Kc8 h7 Na6 b7+ Kc7 b8R Ne7 h6 Ng6 Qd3 Qd8 f8N Bh5 Kf5 e4 b5 d5 Rb6 d4 Na3 Qd6 Nc4 Qd8 Nd7 Re8 h8N Nf8 h7 Qe7 Ne2 Ra5 Ne3 Bf3 Nf6 Qf7 Nf4 Kc8 c7 Re6 Nhg6 Qe8 h8Q Rc6 Nfg4 Ne6 Qh4 Nd8 Rh3 Nb8 Ne7+ Kd7 c8B+ Kc7 Nh5 Rd6 c6 Nd7 Bb7 Kb8 c7+ Ka7 c8B Nf7 Qe2 Nde5 Bd7 Rh6 Rd6 d3 b6+ Kb8 Bdc6 d2 Qb5 d1Q Bc4 Ra8 Bb3 Qf8 Be8 Rh7 Kf6 Nc4 Kg6 Qc2 Rb1 a1N Rb2 Qd1 Rbd2 Qc2 Ba3 Qa2 Bb2 Qa4 Bf6 Be2 N7f5 Bd3 Bd8 Bb1 Ne7 Ba2 Kf6 Nfe5+ Kg5 Rg7+ Kh6 Rg5+ Kh7 Rf5 Bc8 Rf1 Ba6 Rh1 b7 Ka7 b8N Qf3 Nd7 Rc8 Nb6 Kb8 Nf1 Qc3 Nfe3 Qc1 Bb7 Qca3 R6d3 Rc6 Rd7 Rf6 R7d6 Rf8 Bc2 Nb2 Nbc4 Bb3 Na5 Be6 Bd1 Nbc4 Bb3
4q3/3B2QB/b2R1n1N/QQ2Bp2/br2RKRN/P2p3B/1Rq1b2k/2n4B b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 e5 fxe5 a4 g4 a3 bxa3 Nf6 a4 Ng8 a5 Ra7 Kf2 Ra6 Ke1 Ra8 h4 b5 g5 f5 Qd6 Ra6 Qd2 Rf6 gxf6 g5 Qd5 g4 Qd6 Bh6 Qd1 Bg5 hxg5 Kf7 Qd4 Kf8 Qd1 Ke8 Kd2 Kf7 Ke3 Ke6 c4 h5 c6 d5 g6 g3 f7 b4 f8Q d4+ Kf4 g2 e4 h4 g7 d3 a6 h3 a7 h2 a8B b3 c7 b2 a3 Qe7 c5 Rh3 c6 Na6 Qe1 Nf6 g8B+ Qf7 Qg7 Rh6 Nc3 b1B Ra2 Bb7 c8R Nh7 c7 Nb4 Nd1 Bd5 Nf3 g1Q Rb2 Bc6 Bh3 Ba2 Nf2 Bb7 Nh4 Bad5 Rd8 Nf8 c8B+ Nd7 Ng4 Rh5 Nh6 Qg2 Rg1 h1B Bh7 Qc2 Rg4 Na2 Qa5 Bb3 Bd2 Bf3 Bc3 Ba6 Bd5+ Ke7 e6 Kd6 e7 Ba4 e8R Be2 Ba8 Qe7 e5+ Ke6 Bh1 Nc1 Bcb7 Nf6 Bbc6 Rg5 Rd4 Rh5 Red8 Qe8 Re4 B4b5 Bd7+ Kd5 Ng2 Rh4 e6 Kd6 e7 Ba4 Bd4 Bc8 Kg5 Bf1 Re3 Qb1 Rf4 Qc2 Bc6+ Qd7 e8Q Ba6 Bb5 Kd5 Be5 Be2 Rc4 Rf4 Rg3 Rd4 Nh4+ Re4 Rg2 Rd4 Rcb4 Ke4 Rg4+ Ke3 Rc4 Kf2 Rcb4 Qe7 Rd6 Qf7 Qb8 Qe8 Bd7 Rc4 Qbb5 Rf4 Ng2 Kg1 Nh4+ Kh2 Bd4 Re4 Rc4 Re5 Kf4 Rc5 Bc3 Rc7 Rcd4 Rc4 Re4 Rb4 Be5
n6Q/5kr1/BBKnRqQQ/3p1R1r/2p5/q1B1PNbR/1BN2R2/R3r3 b - - 0 1 legal: proof: f4 b5 d4 h5 b4 e5 fxe5 c5 g4 d6 gxh5 Ba6 a4 Qg5 axb5 Ne7 c4 Nc8 d5 Qf5 b6 Qc2 b7 Qa4 b5 Ne7 b6 Qc6 dxc6 Bb5 cxb5 Ng8 Kd2 g5 Ke3 a5 Ke4 f5+ Kd5 f4 h4 a4 h6 f3 e6 g4 c7 f2 c8Q+ Ke7 e3 g3 h7 g2 h5 a3 h6 a2 Qc6 Ra3 Qc2 Ra7 Bb2 Ra4 Na3 Rc4 Rh3 Rf4 Qg6 Re4 Nf3 g1Q Nc2 Na6 b8B Rc4 b7 Rf4 b6 Rf7 Ba7 Rg7 b8R Qg2 Bc4 f1R b7 Re1 Bb6 Qf1 Ra8 Qf2 b8R Qh4 Bb5 c4 Rd8 Qf6 Rdc8 Nc5 Ra5 Ne4 Rca8 Nd2 Ba6 Ne4 Rd1 a1Q Rd2 Qa3 Rf2 Re2 Qb5 Re1 Kc6 Ra1 Qbh5 Re1 Rf5 d5 Qh4 Nd6 Qhh5 Qg5 Qh4 Nf6 Bc3 Nfe8 Qf4 Rhg8 h8Q Nc7 h7 Qh4 Qfh6 Qf6 Qgh5 Rg5 Q5g6 Rh5 Bb2 Rg7 Bc3 Rf7 Ra7 Ke8 e7 Na8 Q8g7 Nc7 h8B Na8 Qg8 Qg5 Bhd4 Qf6 Q8h7 Bg7 Bb2 Bf8 Bdc3 Bg7 Qh8+ Bf8 Qg3 Rg7 Qg4 Kf7 e8R+ Nb7+ Re6 Bd6 Bb5 Bf4 Ra5 Bh2 Ba6 Nd6 Qg1 Bg3 Ra4 Qb4 Ra1 Qa3 Qg2 Bh2 Qgg5 Bg3 Qgg6+
2b2rQR/4B1b1/Q1Q1QNR1/1Bp4K/Qpb4P/3n3N/2qRnRNq/5k2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kf3 g5 Kg4 b5 a4 c5 e4 f6 d4 b4 h4 Rh7 a6 Qb6 d6 Kc6+ e6 Bh6 a5 Raa7 e5 Kd5 d7 Ke4 d8Q Bf8 d5 Qb7 d6 Ne7 d7 Nec6 e7 Qb5 e8Q Be7 e6 Qb7 h6 f5+ Kh5 f4 Rh3 g4 Rf3 g3 Nc3+ Kf5 Bb5 g2 Qa4 Rf7 h7 Rg7 h8R Nd4 Nd1 Ke4 Nh3 g1Q Ne3 Bf6 e7 Qh2 Ng2 Ra8 a7 Ne2 a6 Nc6 Rb1 Rb8 a8Q Rf7 a7 Bg7 Qc7 Ne5 d8R Rf8 Rd2 Nd3 Qcc6+ Kd4 Qe6 Qe4 Qe8c6 Rb7 e8N Rbf7 Nf6 Kc3 Rg3 f3 Rg6 f2 Rb3+ Kd4 Qb8 f1B Qg3 Qf5+ Qg5 Qe4 a8Q Qf5 Q8a6 Qe4 Ngf4 Ke3 Bb2 Kf3 Be5 Ke3 Bd6 Kf3 Be7 Ke3 Ng1 Kf2 Ngh3+ Ke1 Ra3 Qc4 Qgd5 Qc2 Qa2 Bg2 Q2b3 Bd5 Ng2+ Kf1 Qc4 Rd8 Qcg4 Bc4 Rc3 Rff8 Qg8 Rd4 Q4e6 Rf4 Ra3 Rf2 Rc3 Nb2 Rf3 Nd3 Rxf2+
Q1QN3r/5n1B/1b1b3N/6nK/2BPRN1B/1r1B1np1/2p2kN1/1QB2Rr1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 b5 g4 e5 fxe5 f5 a4 f4 axb5 Bf5 gxf5 g4 h3 g3 Qa4 Qh4 Qd1 Qg4 hxg4 Ba3 Rh5 Bd6 Rh1 Bf8 d4 Ke7 b4 a5 e4 h5 Ke2 c5 Kf3 c4 f6+ Kf7 b6 Kg6 b5 Kg5 d6 c3 e6 c2 e7 a4 e8B h4 b7 a3 e5 a2 f7 h3 e6 Kh4 e7 h2 b6 Bg7 f8B Be5 g5 Ra5 d7 Ra6 d8N Nd7 b8Q Ra4 g6 Bf6 g7 Rc4 b7 Rc6 Qc8 Rd6 b8Q Be5 Bg6 Ngf6 e8B Ne4 g8N Rb6 Nh6 Bd6 Nd2 Rb3+ Bd3 Kg5 Rb1 a1B Qa8 Bc3 Bef7 Ba5 Nc4 Bb6 Ne2 Kh4 Qe1 Kh3 Rf1 h1R Be7 Rg1 Ne3 Kh2 Kg4 f3 Qb4 f2 Bh4 Ng5 Kh5 Ne5 Bfc4 Nef7 Ng2 Kh1 Re1 f1N Nef4 Nd2 Re4 Ndf3 Ra1 Rd1 Qb5 Kg1 Bh7 Kf2 Qb4 Rc3 Qb1 Rb3 Ra7 Rg1 Rae7 Ne6 Re1 Neg5 R7e4 Rf8 Rd1 Rh8 Rf1+
1b1N1r2/Q2q1Q1Q/7r/2BpPr1p/R1Nn1BrR/1B1N3Q/4n1k1/3KQN2 b - - 0 1 legal: proof: d4 c5 dxc5 g5 g4 b5 f4 e5 fxe5 f5 gxf5 g4 a4 g3 axb5 Bb7 h3 Be4 Ra5 Bf3 Ra1 Bg4 hxg4 Bg7 Ra3 Bh6 Ra1 Bf8 c4 Kf7 b4 d5 e4 h5 f6 Ke6 b6 a5 b7 g2 f7 a4 c6 a3 b5 a2 c7 Ra3 c8Q+ Qd7 g5 Ra7 g6 Bd6 f8B Nf6 c5 Ra4 b6 Bc7 g7 Ra8 c6 Ra4 Ne2 g1R Rh4 Rg4 Bc5 Bd6 g8Q+ Ke7 e6 Ne8 e5 Nf6 c7 Rh6 Bf4 Rh8 Nd2 Na6 b8N Qc6 b7 Qb5 Qh7+ Rg7 Nc1 Qd7 Bc4 Rf8 Nd3 Nb4 Nf1 Ne4 Bb3 Ra6 Qf3 Rgf7 Qe3 Nc6 Kd1 Ng3 Qe1 Rg7 Qe3 Rf5 Qcg8 Ra8 c8Q Nd4 Qc6 Nge2 Qf7+ Kd8 Qa4 Rg4 e7+ Kc7 Nc6 Rf8 b8N Kc8 Nd8 Bc7 Nbc6 Bb8 e8Q Kc7 Rb1 a1R Qb4 Ra6 Na5 Rh6 Qe1 Kc8 Ra1 Kc7 Bd6+ Kb6 Ra4 Kb5 Ba3 Kb6 Nc4+ Kb5 Nb4 Kc5 Qee7+ Qd6 Qh3 Nc2 Bg3 Kd4 Bf4 Ke4 Nd3 Nd4 Qa7 Qc6 Bc5 Qd7 Qh2 Kf3 Qg1 Ne6 Qd4 Kg2 Qe3 N6d4 Qh3+
QN1nb1kB/Q1N1Q2b/K5p1/1r1q4/1b2pN2/1PR1bB2/Q3R1NB/Q2r4 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nc6 f6 Rb8 f7+ Kd7 axb3 Ra8 b4 Nb8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 h4 g6 f5 Qe8 h5 Nc6 h6 Nd4 f6 Ne6 Ke2 Ng7 hxg7 Kd8 Kf2 Qd7 Ke1 Qf5 gxf5 Kd7 Ke2 c5 Kd3 e5 Kc4 a5 d4 h5 b6 e4 Kb5 h4 d6 a4 b7 c4 b8N+ Kd8 d7 c3 d5 h3 Na3 h2 Ne2 c2 Bf4 c1B Nc2 a3 Ne3 a2 Ng2 Nh6 g8Q Be3 Rc1 a1Q Rc3 Qa3 Qa1 Rh7 b3 Ra4 Qg7 Be7 f8B Rd4 f7 Bg5 f6 Bf2 Be5 Ra4 Bfd6 Bd2 f8N Nf7 Nef4 Bfe3 Be2 Rh5 Re1 h1B Bf3 Rd4 Re2 Qa8 Qa7 Bb7 Ka5 Bc6 Ka6 Be1 Qh8 Rd1 Bd4 Ng5 f7 Ne6 Bc7+ Ke7 Bde5 Nd8 N8e6 Rg5 Qh2 Bc5 Bh8 Be3 Bce5 Rf5 Nc7 Kf8 d6 Ba4 Qg1 Qd5 Qh2 Nb7 d8Q+ Be8 Qd7 Nd8 Qa4 Rg5 d7 Rh5 Nh4 Bg2 Qa1 Bh3 Qf2 Be6 Nhg2 Nc6 d8Q B1d2 Qd7 Nd8 Nd3 Be1 Bh2 B1d2 Ndf4 Be1 Rcc2 Bb4 Qc6 Rg5 Qca8 Rf5 Bb2 Re5 Rc3 Kg7 f8Q+ Kh7 Rd2 Bg8 Re2 Kh8 Qe7 Bh7 Qe1 Kg8 Qd2 Qd4 Qc2 Rb5 Qcb1 Qd5 Qba2 Ne6 Rc1 Nd8 Bh8 Nf7 Rc4 Nd8 Rc3
5QQQ/1nk1PNB1/R1nR4/1N3p2/RnBB1p2/bK3b1n/rQ1B4/5B1q b - - 0 1 illegal: Other
rnNBBq1R/Bqq3b1/5B2/2P4Q/1QN2R1Q/2Q1pkpr/4N2r/3B2K1 b - - 0 1 legal: proof: g4 g5 h4 b5 f4 f5 gxf5 c5 a4 g4 axb5 c4 e4 c3 f6 Na6 e5 Qc7 f5 Kd8 dxc3 Qb8 c4 Nc7 c5 Qb6 Bd3 Ne6 Bf1 Ng5 hxg5 Bb7 Ra4 Bd5 Ra1 Bf7 e6 Kc7 exf7 Qb8 Ra6 Qc8 Ra1 Qd8 Kf2 h5 b4 d5 c4 a5 c6 Kd6 c7 Ke5 c8N Ke4 c5 e5 b6 h4 g6 h3 g7 a4 b5 h2 b7 a3 b8B d4 b6 a2 b7 d3 Bb2 d2 Na3 Qe8 Ne2 Ra4 Ba7 Qe7 b8Q Rh3 Nc4 Rc3 Qb4 Nh6 g8B Bg7 f8B Qe6 f7 Rd3 f6 Rh3 Be7 Qd5 f8Q Nf7 Bd8 Qb7 Qe7 g3+ Kg2 Ra6 Qdb3 d1R Q3c3 Qc7 Rb1 a1Q Rc1 Nh8 f7 Ng6 f8Q Rd2 Qfe8 Nf8 Qh5 Nd7 Bf7 Nb8 Be8 Qa4 Rc2 Qac6 Rc1 Qf6 Ra1 Qf4 Ra4 Qf8 Qeh4+ Kd5 Bb6 Ra8 Ba7 Rc2 Bc1 Rb2 Bcg5 e4 Bdf6 e3 Bd8 Qff4 Bge7+ Ke4 Bf6 Rb3 Nd4 Rb1 Be2 Ra1 Bd1 Ra2+ Ne2 Rb2 Q4g5 Qfd6 Kf1 Qf8 Qgh4+ Qf4+ Qf3+ Kf5 Qbb3 Rd2 Nc1 Rd5 N4b6 Rd3 Qh8 Rh4 Rd4 Rh7 Qbb4 Rd2 Nc4 Rg2 Ne2 Rh6 Rg1 h1Q Re4 Qh5 Rh1 Qhf7 Rh4 Rh2 Kg1 Qb7 Rd4 Rh7 Qd5+ Qe5 Rdg4 Rh5 Qf7 Qf4 Qh6 Ke4 Qg5 Kf3 Qh6 Re5 Qg5 Rd5 Rh8 Qfc7 Qh6 Rdh5 Qfg6 R5h3 Qh4 Qff7 Qgh5 Qf8 Rf4#
5nbB/1BK1bBNB/R1P4q/4B2N/1pkN1Np1/2n2Rq1/4RqQb/Q7 b - - 0 1 legal: proof: g4 h5 b4 c5 f4 a5 bxa5 g5 d4 b5 dxc5 f5 gxf5 g4 h4 Ba6 e4 Rh6 e5 Rg6 f6 Bc8 f5 Rg5 hxg5 Qc7 Qd5 Kd8 Qf3 Ra6 f7 Rf6 exf6 Qb6 Rh4 Kc7 Qd1 Kc6 Rh1 Qd8 Kf2 e5 Ke3 d5 c4 e4 Kf4 e3 Ke5 e2 a4 e1B g6 d4 a6 b4 g7 d3 a7 h4 a8Q+ Bb7 a5 d2 a6 h3 a7 h2 Nc3 Be7 f8B Qe8 f7 Qd7 f6 Na6 Nce2 Qc8 Nf3 Bd8 Bd6 Bh4 f8R Bb6 f7 Nc7 Nf4 Bf2 Nd4+ Kd7 Bb2 Be4 Bd3 Bg2 Ra6 Qb8 Re1 h1Q Re2 Qh8 Qa1 d1Q Bh7 Bf1 Qg2 Be1 a8B Qc2 Bb7 Nf6 g8N Nb5 Bd5 Bd8 c6+ Kc8 c7 Bg3 c5 Nd7+ Ke6 Qg7 Nf6 Bh2 Be5 Nc3 Kd6 Qh6 Be6 Qd2 N6h5 Qe3 Bh8 Qg3 Kc6 Qb7+ Kd6 Qbf3 Be5 Kb7 c8B+ Kb8 c6 Qff2 Bh8 Bf6 Bb7+ Bd8 Re3 Bc4 Rf3 Bd5 Re8 Bc4 f8N Ba2 Ng6 Nf8 Bf7 Bd5 Re2 Be7+ Ke5 Kc7 Nh4 Be6 Nhf5 Bd5 Nfg7 Be6 Ra7 Kb6 Ra8 Kc5 Ra6 Na4 Bc3 Kc4 Bb2 Bh4 Kd6 Be7+ Kc7 Nc3 Ndf5 Ne4 Bd4 Nc3 Be5 Bd5 Nd4 Be6 Be8 Bg8 Bf7+
2r5/2NBq1rp/4bB2/Pq2r1Np/nk1R1R1B/5Q1N/R1r2N2/K4BQB b - - 0 1 illegal: Other
3nq1B1/p1bBNQqk/1p6/q1R1Q2B/N2K1NBR/7q/P6R/B2nR2r b - - 0 1 illegal: No possible last move
1n2B3/b1br1R2/2B5/1PR1prpK/2NQ1k2/1QN4B/r1b2N1R/Nb2B2B b - - 0 1 legal: proof: f4 f5 a4 b5 axb5 c5 d4 g5 dxc5 Nf6 e4 Nd5 h4 Nb6 g4 Ba6 h5 Nd5 e5 Qc8 gxf5 Ne3 f6 Qc6 f5 Qe6 Rh4 Qf7 Rh1 Qg6 hxg6 Ng4 Na3 Nh6 Nb1 Ng8 Qd4 Nc6 e6 Bc8 Qd6 Ne5 Qd1 Nf7 exf7+ Kd8 Ke2 Kc7 Kf3 h5 c4 e5 b4 d5 b6+ Kd7 g7 a5 b7 a4 b8Q a3 c6+ Kd8 c7+ Kd7 c5 h4 Kg4 d4 c6+ Kd6 Bb5 a2 Rh2 h3 Nc3 d3 Bd2 Ra5 Rc1 a1B Be1 Be7 f8N d2 f7 Ra2 Ne6 Ra4 f8N Ba6 f6 Rh6 f7 Bc8 Nd7 Bb7 f8R Bf6 c8B+ Ke7 c7 Be4 Nb6 Bc2 Be8 Ra2 Nc5 Kd6 b5 Ne7 g8B Nc6 Bd5 Bd8 Bh1 Rf6 Qa7 Rf5 Rf7 Nb8 Kh5 Bb1 Qda4 d1R Bcb7 Rd4 c8B Bc7 Qb3 Rdd2 Nce2 Bd4 Nc3 Bf2 Bbc6 Rd4 Rg2 h2 Nh3 Bg1 Nf2 Rd5 Ncd7 Ke6 Nc4 Bc2 Qd4 Bb1 Nf6+ Rd7 Nfd5 Bc2 Nb4 Bb1 Nfd1 Be3 Nc2 Bf2 Qe4 Ba7 Na1 Bc2 Rd2 Bb1 Nf2 Bc2 Bg2 h1B Qd4 Bb1 Bh3 Bhe4 B8b7 Bec2 Bh1 Re7 Bbc6 Rd7 Ng4 Rf6 Rh2 Kf5 Qc5 Kf4 Nf2 Rf5 Qd4+ Be4 Nb2 Ra3 Nca4 Ra2 Rc5 Re7 Nc3 Rd7 Qd6 Bed3 Nc4 Bdc2 Qd4+
5N1Q/2Qb4/1Knp1N1B/nR6/1N1rPR2/r4BnR/rNQ2p1k/1R1r2R1 b - - 0 1 illegal: No possible last move, all moves rejected
2Q4N/NN5k/1Q2p3/1Kb2N2/1QR1NqBB/3b3b/brP1Rrp1/3Bq2B b - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 f5 f4 b5 a4 g4 axb5 Nh6 e4 Qc7 exf5 Kd8 f6 Ng8 f7 Nf6 f5 Ne4 g3 Ng5 hxg5 Nc6 f6 Nd4 Bg2 Ne6 Bh3 Nf4 gxf4 g3 f5 Qb8 Bf1 Kc7 Rh3 Ba6 Rh4 Qd8 Rh1 Bc8 Kd2 a5 Kc3 d5 b4 Kd7 b6 h5 b5 h4 c6+ Kd6 b7 Ke5 b8N a4 Kb4 a3 g6 d4 g7 h3 g8B h2 c7 d3 b6 d2 b7 a2 Be2 Qd7 Nf3+ Ke4 Nd4 Qd5 Na6 Bh6 f8N Be6 b8N Bg7 c8B Bd7 f7 Rh4 f6 Rh7 Re1 h1B Ng6 Bc6 f8Q Bh8 f7 Ra7 Nf5 Bd4 Nh8 Bd7 Nc6 Bc5+ Kb5 Qd4 Nc3+ Kf4 Qe8 Kg5 f8Q Rh2 Bd5 Qf4 Bh5 Rc7 Re2 Rf2 Qg1 d1B Bg4 Be6 Na7 Bg2 Bb2 Bf1 Bh1 g2 Bd7 Bd5 Qc8 e6 Bc6 Bb3 Bcf3 Bd5 Rb1 a1Q Ba3 Rh7 Rb4 Ba2 Rc4 Qac1 Qd6 Rb7+ Qb6 Qcd2 Bb4 Qe1 Ba5 Be7 Nc5 Rb8 Nb7 Bc5 Nf7+ Kg6 Nh8+ Kh7 Ne4 Qh6 Bd2 Qh2 Bg5 Qf4 Rd2 Bde2 Bh4 Bd3 Bd1 Bfe2 Qa5 Bf3 Qb4 Bfe2 Bh5 Bg4 Re2 Bh3 Bg4 Ra8 Nc6 Ra3 Na7 Rb3 Ne3 Rb2 Nf5 Rf3 Qd4 Rf1 Qdd8 Rf2 Qb6
4q3/1p3QBb/5q2/2B2q1N/1N1pkqrN/BBRP2QR/1q1n4/Q4NKN b - - 0 1 illegal: No possible last move, all moves rejected
BK2Q3/NQ1qn3/3R2nN/BR2Q2k/1p2B3/qq1nB1Rn/1Pbp1Q2/5Q2 b - - 0 1 legal: proof: d4 c5 dxc5 f5 e4 a5 exf5 b5 g4 b4 f6 Ra6 a3 Rb6 a4 Rb5 axb5 Qb6 Ra2 Qc7 Ra1 Qd8 f4 h5 h4 Qb6 f7+ Kd8 f5 g6 Ke2 Bg7 Ke1 Kc7 g5 Bf6 Qf3 Rh7 Qd5 Rg7 gxf6 g5 Qd3 g4 Qd1 Rg5 hxg5 Kb7 Ra3 Qd8 Ra1 Kc7 Kd2 e5 Ke3 d5 f8Q Kd7 c4 g3 c6+ Kc7 f7 d4+ Ke4 g2 g6 d3 f6 h4 g7 a4 c5 h3 Qe8 h2 f8B a3 f7 a2 Nh3 g1Q Nc3 Qd6 Bg2 Qf1 Ng5 Nd7 b6+ Kb8 c7+ Kb7 c6+ Ka6 b7 Kb6 b8Q+ Kc5 Be7 Qg1 f8Q Qf2 Nb5 Ba6 c8B Qf1 c7 Qf7 Na7 Qb3 Bd8 Ne7 g8R Qde6 Qd2 Kd6 Rd1 h1N Qf1 Nf8 Bb7 Qd7 Nf7+ Ke6 Rg3 Ng6 c8Q Bb5 Bf3 Kf6 Nh6 Bc4 Ba8 Nf2+ Ke3 e4 Qcb7 Bd5 Kd4 e3 Kc5 e2 Kb6 e1N Qe3 Nh3 Qef2 Be4 Be3 Bf5 Rac1 a1Q Rc5 Qaa3 Rb5 Qd4+ Kc7 Qg4 Bd4+ Kg5 Be3+ Kh5 Bc6 Nc8 Qe5 Nce7 Q8c8 Qd4 Kb8 Qdd5 Ba5 Qd7 Rc1 d2 Qe8 Kh4 Rcc5 Bc2 Be4 Nd3 Rc7 Qa1 Rc6 Qaa3 Bg5+ Kh5 Rd6 Qde6 Be3+ Qf5 Bg5 Qd7 Be3+
3B2rR/1N2nRnP/8/p2k2NQ/bR1nr1B1/6qQ/1p1Kp2Q/B1RB1R2 b - - 0 1 legal: proof: c4 b5 g4 f5 b4 h5 gxh5 d5 cxd5 c5 e4 e6 exf5 Bd6 a3 Bc7 bxc5 b4 Bg2 b3 Bh3 Ba5 Bf1 Bb4 axb4 Rh7 Qf3 Rh6 Qd1 Rh8 h4 Kf7 d4 g5 f4 a5 h6 e5 h5 e4 c6 e3 d6 g4 f6 Ke6 d7 g3 f7 g2 f8Q Qb6 d8Q Bd7 c7 Rh7 c8B Rf7 f5+ Kd5 b5 Ne7 h7 Qc7 h8R Qb7 b6 Qa7 b7 Rg7 h6 Na6 b8R Nc7 h7 Kc6 f6 Kd5 f7 Ng8 Nh3 g1N Nd2 Qc5 Rb4 Ne6 Be2 Rg6 Bb2 Nf4 Qc7 Qc2 Ng5 Qe4 Rc1 Qe6 Qh6 Bb5 f8R Qd6 Ba1 b2 Nc4 Qa6 Nd6 Ne7 Nb7 Ba4 Bcg4 Rb8 Qh3 Qd3 Rf7 Nh5 Qch2 Re6 Bef3+ Re4 Qde2 Ng3 Qd1 N1e2 Rf1 Nf4 Be2 Rg8 Bef3 Qa3 Qde2 Ne6 Qb5+ Nc5 Bd1 e2 Kd2 Nh5 Qe8 Qg3 Qb5 Ng6 Qe8 Ng7 Qe5+ Kc6 Qf5 Ne7 d5+ Kc7 d6+ Kc6 Qg6 Kd5 d7 Nce6 d8B Nd4 Qgh5
rN3k2/rRBRN3/4QN1b/3PpK2/pB1b4/1p4N1/3R2R1/2qBRnqQ b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 d4 a4 d3 cxd3 Nh6 d4 Ng8 d5 Rh6 Bd3 Rh7 Bf1 Rh8 a5 b6 a6 Bb7 axb7 Rh6 Ra6 Rh7 Ra1 Rh8 b4 a5 Ra2 a4 Ra3 Nc6 Ra1 Na5 bxa5 Qc8 Qg4 Qd7 Qd1 Qd8 Ke2 g5 Kf3 c5 Ke4 e6 b8N b5 h4 c4 f4 c3 d4 g4 f6 g3 h6 b4 f5 g2 d6 c2 a6 b3 h5 Ra7 h7 Be7 f7+ Kf8 d5 Qb6 h6 Qa5 d7 Bd8 Bf4 c1Q Rh2 Ke7 f8R Qcc5 Bc7 e5 Nd2 Qa3 Qg4 Q3c5 Re1 Qd6 Ne2 g1B Ng3 Bb6 Be2 Qe6 Rg2 Bd4 Bd1 Rb7 a7 Qb5 a8R Rb6 Ra7 Qf7 Rb7 Kf6 Qh3 Be7 d8R Re6 Rd7 Qf1 Rc8 Kg5 f6 Ra6 Qe6 Qg7 f7 Ra7 f8B Bb4 Bfd6 Ne7 Rg8 Bbc3 Bb4 Nf5 Rc8 Rf8 h8Q Ne3 h7 Rg8 Rf8 Qg1 Rff2 Nf1 Rfe2 Qh6 Ref2 Be3 Rfe2 Bcd4 Ref2 Kh4 Kf5 Rd8 Nde4 Bd2 Na6 Rda8 Nf6 B2e3 Nb8 Bf4 Ke4 Kg5 Ra2 Qhh1 Rd2 Kh6 Kf5 Bfe3 Qd8 Bf4 h8N Bg5 Ng6 Bf4 Rd6 Kg7 Ne7 Bh6 Qdd7 Kf8 Qb5 Qe3 Rd7 Qhg1 Qe2 Qc3 Qh5 Qc1 Qh1
1R1N1n2/R1b1N1b1/N2p1N1P/3R1BQn/KpRq2N1/7p/3B1k1r/Q1B2q2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 h4 d4 Rh6 dxc5 Rh8 h3 b5 Be3 g5 Bf4 Rh5 Bc1 Bb7 Qe2 Bf3 gxh5 g4 Qd3 g3 Qd1 Bg4 hxg4 Ra6 Bg5 Rh6 Bc1 Rh8 Kd2 Kf7 Kc3 Kf6 Kb3 Ke5 f4+ Ke4 a4 e5 c4 d6 f6 g2 f5 h3 c6 b4 f7 Qc8 a6 Ne7 g5 Qe8 a7 Qd8 a8N Nc8 c5 Qa5 g6 Ne7 g7 Qb6 g8Q Qb7 c7 Nc8 f6 Ne7 c8R Nbc6 a5 Nf5 a6 Ne3 a7 Rh6 Bd3+ Kf4 Nc3 e4 Nf3 g1Q Ka4 Rh7 Nh2 Qg3 Nd5+ Ke5 Ng4+ Kd4 Qg5 Nf5 Nac7 e3 a8R e2 Na6 e1B Rab8 Nd8 c6 Rg7 c7 Be7 f8B Qb6 f7 Ne6 Ndf6 Qf4 h6 Ng3 Bf5+ Bd2 Rf1 Rg6 Bg7 Bd8 f8N Nh5 Re1 Qf3 Re5 Qf1 Qe1 Bc3 Rd5+ Kc4 Ra2 Qd4 Bd2 Bb2 Qa1 Bc3 N8d7 Nf8 Ndc5 Bb2 Bh8 Rg7 Nb7 Re7 Bc1 Re2 Ra3 Be7 Nd8 Rh2 Ng8 Bc3 Be5 Bf6 Bef4 Bg7 Ra2 Bd2 Ra3 Be3 N8f6 Bg1 Bfd2 Bf2 Re3 Bh4 Re4 Kd3 Rb7 Bf2 Rcb8 Be3 c8N Ke2 Ra7 Kf3 Ne5+ Kf2 Rh4 Qdc4 Rg4 Bb6 Ne7 Bc7 Re4 Qcd3 Rc4 Qd4 Neg4+
BrRN1R2/1bQ1K1N1/k2p3p/QN3N2/1B1B1qpr/1QQ4P/8/nqn4N b - - 0 1 legal: proof: d4 c5 dxc5 b5 e4 f5 exf5 b4 f4 e6 g4 b3 g5 Qb6 axb3 Be7 b4 Qd8 b5 Bf6 gxf6 Bb7 Bd3 Ba6 Bf1 Bc8 Kf2 g5 Kf3 a5 Kg4 a4 c4 e5 b4 a3 h3 e4 c6 e3 c7 a2 f7+ Ke7 f8N e2 f6+ Ke8 Kf5 e1Q b6 h6 b5 g4 f7+ Ke7 c5 Ra3 c6 Qe8 b7 Qc3 b6 Qc4 Qd5 Ra4 Nc3 Ra7 Bb2 Qa4 Nge2 Ra8 Bg2 Qb3 Ng3 Qc4 Rhc1 Ra7 Nh1 Rh7 Ne6 Qb5 f8N Ra6 Nd8 Qc5 Nfe6 Qa5 Rc2 Qa4 Rf1 a1Q Qa2 Kd6 Bd5 Ne7+ Kf6 Ra8 f5 Na6 b8Q Qb1 b7 Qh5 Qa7 Qe4 b8Q Qa4 Qbb3 Rg7 Qd4 Rg5 Ng7 Ng6 Kf7 Qa1 f6 Nf4+ Kf8 Re5 f7 Nb4 Qd3 Ba6 c8N+ Kc5 c7 Rb8 Ba8 Bb7 Ne7 Kb6 c8Q Ne2 Rcc1 Qa5 Nb5 Qg5 Bd4+ Ka6 Rc5 Qgc1 Qdc3 Qab1 Ke8 Rh5 f8B Qg5 Rf7 Qgc1 Nef5 Qf4 Bd6 Nc1 Ke7 Rh4 Rf8 Nc2 Rc7 Rh5 Bb4 d6 Qd7 Na1 Rc8 Rh4 Qdc7 Be4 Nf2 Bd5 Nh1 Bb7 Qaxa5#
B4K2/R1N4Q/1qR1R1R1/1P3bk1/rB1Qqq2/BNp2pn1/2R4p/B5Nr b - - 0 1 legal: proof: c4 b5 h4 g5 f4 f5 a4 e5 axb5 d5 cxd5 g4 g3 Nc6 Kf2 Bh6 Ke1 Bg5 hxg5 Nd4 fxe5 f4 Rh4 f3 Rh3 Ne6 Rh1 Nf4 gxf4 Kd7 Nc3 Ke7 Nb1 Ke8 Kf2 Kf7 Kg3 Kg6 Kh4 h5 b4 a5 d4 c5 e4 c4 f5+ Kh7 f6 Kg6 f7 a4 f8B a3 e6 g3 e7 a2 e8R g2 e5 Ra5 e6 Qe7 d6 Qd8 d7 Ra4 b6 Ra3 e7 Rb3 b7 Rh7 b8Q Re3 d5 Nh6 d6 Ba6 b5 Nf7 Ba3 Nh8 Qd4 Re2 Nd2 Re3 Qb7 Rc3 Nb3 Rc1 Bd3+ Kf7 g6+ Ke6 Kg5 h4 g7 h3 g8R h2 Be4 Qc8 d8B Rh4 d7 Nf7+ Kg6 Qb8 Kg7 Nh6 Bb6 Re1 d8R Qf4 Rc8 Rf1 Rc1 a1Q Rc2 Qe1 Ba5 Qee3 B5b4 c3 Bb2 Rd1 Ba1 Rf1 Bd5+ Kf5 Rc6 Qee4 Ra8 Kg4 e8N Kg5 Ra7 Rd1 Qf7 Bc8 Nc7 Bf5 Ba3 Rc1 Bfb4 Re1 Re8 Rd1 Ree6 Re1 Ne2 g1Q Kf8 Rc1 Qh7 Qge3 Qd3 Qb6 Rg1+ Rg4 Rg2 Rh1 Qd4 Bg6+ Rf6 Nf5 Ng1 Ng3 Re6 Bf5 Ba8 Rh4 Re5 Rh6 Rc6 Rd6 Re6 Rd5 Rc1 Rc5 Rcc2 Rc4 Bc5 Ra4 Bd6 Qee5 Bdb4 Qee4 Bc1 Kg4 Rgf2 Nh5 Bca3 Kh4 Qhd7 Kg4 Rg2+ Kh4 Rgg6 Ng3 Rh6+ Kg4 Qh7 Kg5 Rhg6+
3Bq2Q/RNR5/b1nq1p1N/r2BQ3/1p3B2/1KBRRR2/1pnP3N/1k2q3 b - - 0 1 illegal: Other
6r1/1bKB1NR1/1npR3k/1Q3pnq/1RR5/2QP1BRQ/1p3B2/N1n1q1B1 b - - 0 1 illegal: No possible last move
1nR3NR/5N2/4K3/r1B3rp/QBQN1pN1/pP4b1/B3B1rb/1Q3bkB b - - 0 1 legal: proof: c4 b5 h4 g5 f4 f5 a4 d5 cxd5 e5 axb5 Nc6 fxe5 f4 g3 Nd4 g4 Nf5 gxf5 g4 Ra5 Bc5 Ra1 Qg5 hxg5 Bf8 Kf2 Kf7 e4 c5 d4 a5 e6+ Kg7 f6+ Kg6 f7 c4 d6 g3+ Kf3 a4 Kg4 a3 b6 h6 b7 g2 b8Q c3 d7 c2 d8N Bd6 f8B Bd7 e5 Ra6 d5 Bc5 d6 Bc8 d7 Bd6 e7 Bc7 e8B+ Kh7 Kf5 Nf6 e6 Bb7 e7 Ra4 g6+ Kg8 g7 Kh7 g8N Be5 Bf7 Ba6 e8B Bc4 Nd2 Ne4 Nb3 Nf6 Bd2 c1R Nh3 g1B Nf2 Bd4 Ng4 Rc2 Rc1 Bdf2 Be6 Bh4 Nf7 Bg3 d8Q Ra5+ Qd5 Nd7 Nd4 Ba6 Qb4 Nb8 Qa4 Be2 Rh3 B1h2 Bdb4 Bb5 Bg2 Bf1 Bh1 Rg2 Bfe7 Kg7 Bb5 Kh7 Ke5 Kg6 Be2 Rh7 Rc8 Rg7 N8f6 Rg8 Qc5 Rg7 Ba2 Rg8 b3 Rg7 Nc2 Rg8 Kd5 Kf5 Qb1 Rg6 Ng8 Rg5 Kd6+ Ke4 Rh4 Nc6 Ke6 Nb8 Bd3+ Kf3 Qc4 Rgf5 Bec5 Rg5 Nge3 Kf2 Nd4 Kg1 Ng4 Nc6 Be2 Nb8 Rh5 Rf5 Rg5 Rd5 Rg7 h5 Rh7 Rg5 Rh8
R2N2Q1/Q7/1Q1b2NP/1pR3B1/2B2RNr/1r1nb1pb/K1p3r1/RQ2Q1k1 b - - 0 1 illegal: No possible last move, all moves rejected
6r1/1p1R1K1k/NN6/P1NR2Q1/1nb1B1pR/B7/1Q1Rpnr1/RQ1n1rQ1 b - - 0 1 illegal: No possible last move
1Bq1R1q1/1Q3Q2/1R2r3/NNNQ3K/1RR1R2p/r1Qp4/B2kp2P/1n1nn3 b - - 0 1 legal: proof: d4 b5 a4 d5 axb5 g5 b6 c5 dxc5 g4 c6 g3 c4 d4 e4 Nd7 b4 Ba6 c5 Nb8 b5 Bg7 fxg3 Be5 g4 Bc8 g5 Bc7 bxc7 Bh3 Qd2 Be6 Qd1 Bd5 exd5 Qd6 Bf4 Qd7 Bc1 Qd8 Kf2 a5 Kg3 h5 Kh4 e5 c8Q Ke7 g4 f5 b6 a4 c7 f4 c6 Kd6 b7 Kc5 d6 Kb4 d7 e4 Na3 Kc3 Nh3 f3 Nb5+ Kb4 Bc4 a3 Nf4 f2 Ba2 f1Q Rb1+ Ka5 Rb4 e3 Ne6 Nh6 Nc5 Qf7 Re1 Qdf8 d8N Qd7 g6 Na6 b8R Qg8 g5 Ng4 g7 Rh6 g6 Nf2 Qb7 Qc8 Qd2 d3 Qc3 Nd1 Kg5 Qd7 c8R h4 c7 Qde8 Qd5 Qc6 Rb6 e2 Rf1 Qce6 Bf4 Qc6 Re4+ Nb4 Be5 Qce8 Rff4 Qd7 Rcb8 Qc8 Rc4 Ra7 Rfe4 Ra8 Na6 Ka4 Nc6 Ra7 Na5 Ra8 Bb1 a2 R8b7 a1N Ba2 Nb3 Rb8 Qce8 c8Q Nd2 Qcb7 Nb1 Qdf7 Qc8 Bc7 Qge8 g8Q Ra7 g7 Re6 Kh5 Ra8 Qh8 Qg8 Qd4 Ra7 Qdd5 Ra8 Na7 Ka3 Nb5+ Kb2 Nc5 Nc2 Bd6 Kc1 Bc7 Qge8 g8R Kd2 Rgg4 Qg8 Qhf6 Qcf8 Re8 Ne1 Bb8 Ra7 Rb4 Ra6 Rec4 Ra7 Rge4 Ra8 Re7 Qc8 Re8 Ra6 Nc6 Ra4 Na5 Ra3 Qc3+
1NK1BkBR/4Q3/P1nN3r/2Bn3p/2np1B1N/1N1B2p1/Q2b3R/R2n3q b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Qc7 f7+ Kd8 f5 Qb6 bxa3 Kc7 a4 Kc6 a5 Qd8 g5 b5 h3 Ra6 Qh5 Kc7 Qd1 Rf6 gxf6 Kc6 Bf4 g5 Qd3 g4 Qe2 g3 Bc1 Bb7 Qh5 Kc7 Qe2 Bf3 Qd1 Bg4 hxg4 Kc6 Kd2 e5 Kc3 d5 Kb4 Kd7 a4 h5 c4 e4 g5 d4 a6 e3 g6 e2 g7 e1N a5 Qc8 a7 Nf3 a8Q Ng5 Bf4 Rh7 Bd3 Rh6 Qe1 Be7 f8N+ Ke8 f7+ Kd8 f6 Qd7 Nd2 Nh3 Nb3 Ng5 Rh2 Rh7 Nf3 Ne4 Nh4 Qd5 Nd7 Qg5 f8B Ke8 f7+ Kd8 a6 Qe5 Ka5 b4 Kb6 Ngf6 Kb7 Nd5 g8B Nec3 c6 Bg5 Bc5 Rg7 f8R+ Qe8 Qe2 Bh6 Qa2 Rg6 Qa7 Rd6 c7+ Ke7 c8B Nc6 Nb8 Nd1 Bd7 Bg5 Be5 Bd2 Bf4 Qg6 Kc8 Qe4 Rd8 Qh1 Be8+ Kf8 Rd7 Qf3 Rh7 Qg2 Rh8 Qh1 Na5 b3 Qc7 b2 Nb3 b1N Qd7 Na3 Qe6 Kg7 Qe3 Rf6 Qe7+ Rf7 Bb4 Na5 c5 Nb5 c6 Nc4 c7 Na7+ Kb7 Nc6 c8N Nf6 Qd7 Nd5 Nd6 Kf8 Kc8 Rf6 Bc5 Rh6 Qe7+
n4bQk/1Q2p1RB/1R5n/7n/q2NRB2/4K3/pBQpP2N/2RRnr1Q b - - 0 1 legal: proof: d4 a5 f4 b5 a4 g5 fxg5 c5 dxc5 Ra7 axb5 Ra6 b4 Ra8 g4 a4 h4 Ra5 bxa5 Bb7 h5 Be4 Rh4 Nh6 Rh1 Bg6 hxg6 Ng8 Kf2 f5 c4 h5 c6 d5 g7 Kf7 b6 h4 c7 f4 c8Q a3 g6+ Kf6 a6 f3 c5 d4 a7 a2 a8R d3 g5+ Ke5 c6 d2 b7 h3 c7 h2 Ra6 Rh3 Nc3 Nd7 b8B Nc5 Bg2 Nf6 g8Q Qe8 g7 Qa4 g6 Qg4 Ke3 Qg3 Nb5 Qh4 Nd4 Ncd7 Bb2 Nh5 Rc1 Nb6 Qb7 Kf6 c8Q f2+ Ngf3 Rg3 Bh3 Rg1 Bf5 Rf1 Bf4 Qg4 Ra4 Na8 Qcc2 Qh4 Rg1 h1N Nh2 N1g3 Qe1 Ne4 Rb4 Nd6 Rb6 Qg4 Qgd5 Qh4 g8R Qg4 Rh8 Kg7 Qdc4 Nf7 Bd3 Ng3 Rh4 Nh5 Qcc8 Kg8 g7 Nh6 Qd8 Qd7 Rh1 Qa4 Bh7+ Kf7 Bd6 Kf6 g8R Kf7 Rg2 Kf6 Bg3+ Kg7 Re4 Kh8 Qed1 Rg1 Bf4 f1N+ Kf3 Ne3 Rg7 Ng2 Qf1 Nh4+ Ke3 Nf3 Qg2 Rf1 Qh3 Rf2 Rhd1 Ne1 Qg2 Rf1 Qh1 Nc7 Qdd5 Na8 Qg8+
4NRQ1/B1NPN1bQ/6q1/Kp1NB2q/1pR3rb/4R1p1/k3B2R/N1r2b2 b - - 0 1 illegal: Other
B3R3/NBBKQ3/3RB1n1/n2rpr2/1P3nNp/1R4Qk/1bp5/1NRR1n2 b - - 0 1 illegal: No possible last move, all moves rejected
2bQ3n/2bQPB1R/N3rR1K/r1N1pQB1/3pr3/p7/N3NNrR/1k1R4 b - - 0 1 legal: proof: d4 b5 g4 d5 a4 e5 axb5 c5 dxc5 h5 gxh5 d4 e4 Na6 f4 Qd5 exd5 Nc7 f5 Ne6 fxe6 Rh7 Bg2 Rh6 Bf1 Rh8 Kf2 Ke7 Kf3 Kf6 Kg4 a5 c4 g5 b4 a4 h4 a3 c6 Ra6 c7 Ra4 c5 Ra5 h6 Ra8 Kh5 Kf5 e7 Ke4 b6 f5 b5 g4 b7 f4 b8N f3 c6 g3 b6 g2 d6 f2 d7 Bg7 d8Q Bd7 c8Q Bf8 c7 Bc6 h7 Bh6 b7 Ra6 Nd7 Ra4 b8N Ra5 Bc4 f1R Qa4 Ra6 Bf7 Kd3 Ne2 g1R Nbc3 Rg4 Rh2 Ba8 Bg5 Be4 Na2 Rg6 Na6 Rff4 Ndc5+ Kd2 Qf5 Rg2 c8N Bb7 Qad7 Re6 Nd6 Bc8 Nde4+ Kc2 Nf2+ Re4 Rd1 Kb2 Bf6 Bd2 Bg5 Nf6+ Kg6 Ba5 h5 Bc7 h6 Ng4+ Kh5 Rg8 h8R Rgg6 h7 Nh6 Rf8 Kc2 Rd3 Kb1 h8R Rg8 Rh7 Rh8 Bg6 Nf7 Rd2 Rg8 Rd3 Nh8 Rf6 Re8 Kh6 Bd6 Qa5 Bc7 Bf7 Rd8 Qda4 Rd5 Qd7 Bd6 Qad8 Bc7 Nb3 Rb5 Nbc5 Ra5 Rd1+
R2Q3Q/2Q1RN1Q/1Bbp2B1/NqpP2n1/1Rb2K2/2prQn2/5p2/2N3Nk b - - 0 1 illegal: Other
k7/3Q2pn/K1b1BqPR/Q1pr2QN/p4R1p/N1b1Q3/4QnN1/3BN1B1 b - - 0 1 legal: proof: c4 a5 h4 b5 g4 f5 gxf5 d5 cxd5 e5 a4 e4 axb5 e3 fxe3 Ra7 e4 Ra6 e5 Rg6 Na3 Rg3 Nb1 Rg5 hxg5 Bb7 Bh3 Ba6 Bf1 Bc8 e4 Kd7 Ke2 h5 Kd3 c5 Kc4 Kc7 b4 Kb7 d4 a4 d6 Qe7 e6 Nh6 d7 Qf7 d8Q Ka7 f6 Qe7 d5 Kb7 e5 Ng8 f7 Ka8 g6 Qd7 e7 Qe6 e8Q Qc6 d6 Be7 f8N Qb7 d7 Bh4 b6 Qd5+ Kb5 Ne7 e6 Nf5 b7+ Ka7 e7 Qe4 Ne6 Qd5 Nf4 Qd2 Ng2 Nh6 Be2 Qa2 Qa5+ Na6 d8Q Nf5 b8N Kb7 Nd7 Rf8 Nf3 Qd5 Nfe1 Qb3 Nf6 Rh8 Be3 Ka7 Bg1 Qb2 Q1d7+ Kb8 Na3 Bg3 Bd1 Nd6+ Kb6 Nc7 b5 Rh6 Rh4 Bf2 Rf4 Ne6 Rc1 Qa1 Rc3 Nf8 Rh3 Bd4 Rhh4 Nb7 Ka6 Nh7 b6 Nd6+ b7 Ne4 Qf7 Qb1 e8B Nf2 Qb3 Qa1 Qe3 Bc3 Bf7 Qb2 Be6 Qa1 Rhg4 h4 Nh5 Qb2 Qg5 Qa1 Rf8 Qb2 Rh8 Qa1 Ng3 Rh5 Qe2 Qb2 Qge3 Rd5 Rf4 Nf6 Rh6 Nh7 Nh5 Qa1 Qf7 Bd7 Qf6 Bd2 Qg5 Qf6 Qab5 Bc3 Qbd3 Kc7 b8Q+ Kc6 Qa8+ Kc7 Qc6+ Kb8 Qc7+ Ka8 Qa5 Bc6 Qdf5 Qe5 Qf7 Qf6 Qd7
nR1Rk2K/R4bp1/R6B/pQpBP3/Qrb2B1N/2Nr4/3Nn1Bp/1B6 b - - 0 1 illegal: No possible last move, all moves rejected
k4KR1/q1q1Bp2/2P1pRp1/1N1b4/Q3Q3/R2rRrQ1/BnN1R1p1/B2B4 b - - 0 1 illegal: Other
k7/3nr1Br/1b1Qpp2/1N1N2R1/2KN1r1Q/4BR1P/1NN3pp/1b1B1R1B b - - 0 1 illegal: No proof kernel
k2nB1R1/1qb3pB/1RpNb2N/Bb1ppB2/2N1PQ2/N1p5/2B5/3QQK2 b - - 0 1 illegal: Other
2q3r1/2r1n3/Bb4BB/q3k2K/QQ2nbr1/R2RN3/1Rbq1PR1/R1QB3N b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 e5 d4 a5 b4 c5 b6 a4 b5 c4 b7 a3 g6 h6 b6 a2 g7 c3 Kh5 e4 g4 c2 f6 e3 g5 e2 f7 e1R g6 Bd7 Nd2 Qc7 Nc4+ Ke7 d6+ Kf6 d5 Re3 Rh3 Nc6 b8Q Ra6 b7 Rc3 Qc8 Na7 b8R Nb5 Ne3 Qb6 Ne2 Qa5 Ng3 Bf5 d7 Bd6 f8Q+ Ke5 d8R Ne7 g8B Rc7 g7 Nc3 Nh1 Ne4 Bh7 Rg8 Rb2 Rac6 Bd2 c1Q Bg6 Rc4 Qa4 Qcc3 Bc1 Qd2 Be2 Bc5 d6 Bb6 d7 Rb4 Bd1 Rbc4 Rab1 a1B Re8 Rd4 d8R Rb4 Rd3 Rbc4 Kh4 h5 Rh2 Rd4 Rg2 Rdc4 Ra2 Bb2 Raa1 Ba3 Rb2 Bd6 Rda3 Rd4 Rd8 Rdc4 Be8 Bh7 Bg6 Rb4 Kh3 h4 Kg4 h3 Kh5 h2 Rd7 Rh8 g8B Rbc4 Bd5 Rg8 Bb7 Rd4 Ng3 Rdc4 Ba6 h1Q+ Kg4 Qhe1 Kh5 Qdc3 Nh1 Qed2 Qb7 Rb4 Qbc6 Qc4 Rd8 Qe6 Qc4 Qc8 Qc3+ Rd4 Qcb4 Rdc4 Qh6 Qe1 Rab1 Kf6+ Nf5 Nc5 Rba1 Rg4 Qhf4 Be5 Bf7 Qe2 Qfd2 Bh2 Qdc2 Ke5 Bh6 Bf4 Ne3 Qd2 Qc1 Bc2 Bg6 Ne4 Rdd3
RR2qR2/NK6/1b1r1nQB/2Q2R1r/5B1b/k2R4/bq1P2Q1/qnNB1rQ1 b - - 0 1 illegal: No possible last move
1R1Bkb1B/1K4n1/nbRR4/1BQB3q/QRN2rq1/2N2b1r/1N1PB3/3qn3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 h5 Kf3 c5 Ke4 e5 f4 a5 b4 a4 g4 a3 f6 a2 f5 c4 b6 c3 f7+ Ke7 b5 h4 g6 h3 g7 c2 g5 h2 f6+ Kd7 b7 Nc6 b8R Qa5 d6 Rh5 Kd5 e4 Ne2 e3 Na3 Nd8 Nc4 Qb6 Nb2 Rh8 g6 Nc6 Nc3 Rh3 Be2 Kd8 d7 Qb7 b6 Qa6 b7 Bd6 f8N Bc7 f7 Nh6 g8B Bb6 g7 Qa3 Ng6 Qb4 Ne5 Ra4 Nec4 Nf5 Rf1 Ke7 d8B+ Kd7 f8Q h1Q+ Rf3 Qh2 Qd6+ Ke8 Qc5 Qh1 Rb1 a1B Be6 Bd7 g8B Ng7 Rc8 Nb8 Rc6 Na6 b8R Bc8 Kd6 Bb7 Rf6 Qf3 Bc8 Qh5 Bd5 Ba8 Bcg4 Bb7 Bd3 e2 Bgf3 e1N Bfe2 Bc8 Rh6 Bg4 Rg6 Bf3 Re6+ Kf8 Kd7+ Kf7 Red6+ Kf8 Kc8 Ke8 Na3 Qbh4 Bb5 Rf4 Kb7 Q4g4 Nac4 Rh4 Nd3 Rh3 Bb2 c1Q Qa4 Qd1 Ne4 Ne6 Bh8 Bg7 Nc3 Bf8 Rb4 Ng7 Ndb2
2b5/B4BNN/3n3K/3qbB2/1nk1rQrN/1r2QRP1/Qn1qQ3/b4RQB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 c5 d4 a5 e4 h5 b4 a4 d6 Ke6 d5+ Kd7 g3 h4 g6 c4 g7 a3 b6 c3 b5 c2 e6+ Ke8 e5 h3 d7+ Ke7 Kg5 a2 b7 h2 b6 f4 Qe2 f3 Bg2 f2 Nd2 f1Q Ngf3 Na6 b8Q Rh7 b7 Qe8 d8N Nb4 Nh4 Bd7 Ndf3 Ra5 Qa7 Rh6 b8Q Rf6 Qae3 Qf7 d6+ Ke8 e7 Qf2 Ne6+ Bc8 Rf1 Kd7 Bh1 Kc6 e8B+ Kd5 d7 Be7 d8Q+ Bd6 Bd7 Ra3 Qdb6 Ne7 g8Q Rf4 Kh6 Re4 Ng7 Rb3 e6 Be5 Ng5 Q7f5 Bd2 c1N Nh7 Ncd3 Q8c7 Qe1 Rf3 Nb2 Qg1 Qf2 Rf1 a1B Be3 Qe1 Bf2 Qd2+ Qbe3 Rg4 Qb8 Qfd3 Qf7 Kc4 Qa7 Re4 Qa2 Rg4 Qf8 Re4 Qff4 Nf5+ Kg6 Nd6 e7 Bc3 e8B Be5 Qd1 Qd4 Kh6 Qc5 Bf7+ Qcd5 Bg2 h1R Bf5 Rh2 Bh1 Rh3 Qee1 Rh2 Ba7 Rf2 Qee3 Re2 Qg5 Rg4 Qef4+ Re4 Qfe3 Nc6 Qgf4 Nb4 Qde2+
2Bbn1qr/1Q3q1N/4q2R/n1n1B2k/3R1QRr/1P1NR1Q1/bb2K1Q1/NR6 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 Kf7 h4 g5 f4 a5 b6 e5 b7 c5 f6 c4 b3 g4 h6 Kg6 h7 a4 d6 a3 d5 c3 f7 c2 d7 g3 d6 a2 h5+ Kh6 f5+ Qg5 d8R e4 f6 e3 d7 e2 Qd6 g2 Bf4 c1B Rh4 Ba3 Be5 Ra6 Nh3 g1N Rg4 Ra8 Nf4 Qg6 Bh3 Ra7 Re8 Nc6 d8R Qf5 b8Q Qd7 Qb7 Be7 f8N Na5 f7+ Nf6 Nd3 Bb2 Na3 Nf3+ Kf2 Ne1 Rb1 a1Q Nc2 Qaa4 Na1 Qc4 Qdd5 Qdc7 Qg2 Bf5 Rdd4 Bd8 Re7 Ne8 Qg3 Rg8 h8Q+ Bh7 Qbg2 Rb7 Ke3 Rb4 Qf6+ Bg6 Qb6 Rh8 Qbb7 Qe6 Nh7 Be4 f8R Qg8 Rf6+ Bg6 Ree6 Qcf7 Re7 Nc2+ Kf2 e1Q+ Kf3 Qe4+ Kf2 Qed5 Ke2 Ra4 Ree6 Nb4 Rf3 Na6 Re3 Nc5 Rd6 Qgf8 Rf6 Qde6 Qf4+ Kg7 h6+ Kg8 Rh4 Na6 Qfg3 Nec7 Rde4 Qb6 Ng5 Nc5 Nb4 Rh7 Bc8 Q8e8 Rbf1 Qbe6 Ref4 Bc2 Nd3 Bb1 Rfe4 Ba2 Rb1 Qef8 Rb4 Ne8 Rbf4 Qc6 Rd6 Re4 Rd4 Qce6 Rf6 Rg4 Qf4 Kh8 Qgg3 Q8g8 Qgg2 Rg7 h7 Rg6 Qgg3 Kg7 Qgg2 Rh6 h8Q+ Kf8 Qh7 Rh5 Qg6 Rh8 Qh5 Kg7 Nh7 Rg5 Qhf3 Rg4 Rf5+ Kg6 Q3g3 Rg5 Rg4 Kh6 Qfe4 Rh5 Rff1 Rh3 Rf6+ Kh5 Qef4 Rh4 Rh6+
1B1N1Bq1/Kbk1n3/BN1r3Q/2qr2Rn/bR1R2P1/N1BQ4/4RRn1/b6r b - - 0 1 illegal: No possible last move
b3r1B1/Bnq1Q1N1/6Bq/BR1b1K2/4P1N1/2nq1NBN/6Rb/QR1k1r1n b - - 0 1 illegal: No possible last move, all moves rejected
kN1N1NN1/2K1Q1B1/r1BQ1qb1/2RQn1q1/Q2PNq2/3n3R/r2n1bb1/4R3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 a5 Ke4 h5 Ke5 c5 b4 Kc7 d4 Kb7 g4 h4 f4 a4 g6 h3 f6 e6 g5 a3 g7 a2 d6 h2 f7 c4 g6 c3 d7 c2 f5 Qe8 d8Q Nh6 g8N Ra6 f6 Ka8 g7 Qd7 b6 Qa4 b5 Bb4 f8Q Qa3 b7+ Ka7 f7 Qa5 Qfe7 Be1 f8N Bf2 Qdd6 Nf5 Nh3 Nh4 Bh6 c1Q Na3 Qcc7 Rc1 a1Q Rc5 Rh7 Rg1 h1B Ng5 Bg2 Nc4 Qb1 Rh1 Qg6 Ne4 Rh8 Qa4 Nd7+ Kf4 Rh7 b8R Nf3 Rh3 Nd2 Ra8+ Kb7 b6 Ne5 Bd3 Bd7 Re8 Bc8 Be2 Ka8 Bf3 Qb5 Na5 Qb8 Qh4 Bd7 Re7 Be8 Nb7 Qf1 Qf6 Qh5 Qh4 Bg6 Re8 Qd8 Qhe7 Qb8 Ngf6 Qd8 g8Q Qc1 Bg7 Rh6 Qc4 Ra2 Qgf7 Qf1 Ng8 Qb8 Qf5 Qd8 Qcd5 Qh4+ Qg4 Qf6+ Qf5 Qc1 Q5c6 Qf1 Qa4+ Qa6 Qf7 Nd7 Ng3 Qe7 Qdc6 Bh5 Na5+ Qb7 Q5g6 e5+ Kf5 Qg5+ Ke6 Qb8 Kd5 Qbd8 Kd6 Qb8+ Qc7 Qe4 Qfb3 Qbd8 Qge6 Rf6 Qe3 Bg6 b7+ Ka7 b8N+ Ka8 Qb6 Qe7+ Kc7 Qf7 Be2 Qef4 Qf5 Rd6 Bb5 Qff6 Qe1 Bg1 Re6 e4 Qe5 e3 Qc6+ Ka7 Qcd5 e2 Nb7+ Ra6 Qed6 Ka8 Bc6 Be3 Qb1 e1N Qbe4 Bf2 Qee5 Ra5 Qe7 Ra7 Qe5d6 Nd3 Re1 Ra6 Ne4 N7e5 Nd8+
BN1rQBqk/Bb6/rqR2q1R/4rPB1/2QN4/1n4K1/1R1bQ3/2nb2QB b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 Kg7 d4 h5 f4 a5 Kf2 e5 d6 c5 f6+ Kh7 d5 a4 f5 c4 b6 a3 f7 a2 g6+ Kg7 b7 c3 d7 e4 g5 c2 d6 h4 b5 h3 b6 e3+ Kg3 h2 Nc3 e2 Na4 e1R Bg2 Nh6 Ne2 Ra5 Nd4 Ng4 Qe2 Rf1 Rg1 h1B Nc5 Rf4 Na6 Nc6 b8B Rg8 b7 Be7 f8B+ Kh8 g7+ Kh7 Ba7 Rb5 b8R Na5 Ba8 Qb6 d8Q Bf3 d7 Bcb7 Qc8 Bb4 d8Q Ne5 Qcc4 Nd3 Qde8 Bd2 Rc8 Rd5 Rc6 Nb3 Nb8 Re5 Rb1 a1Q Rb2 Rfe4 Rg2 Ra5 Rg1 Ree5 Rg2 Ra6 Rg1 Be3 Bd2 c1Q g6+ Kh6 Rg2 Qg1 Bc1 Rh8 Bd2 Ndc1 g8B+ Kg5 Be6 Kf6 g7 Bh5 g8Q Bg4 Bdb4 Bd2 Bbd6 Bf3 Bd5 Bg4 Bh6 Bf3 Qg4 Rg8 Bg5+ Kg7 Bf8+ Kh8 Qe1 Bd1 Qge2 Qh1 Qg1 Qh7 Rf2 Qg6 Bh1 Qf6 Rf4 Qaa5 Rg4 Qd5 Bh4 Qdf7 Rg6 Qh7 Ba3 Rf8 Bg5 Qg8 Bd6 Rf7 Bc5 Rd7 Bf8 Rd8 Rh6+
3qB2Q/r1Q1kn1K/n7/BPRrr1b1/1NR1Q1NR/RQ2b2R/7n/1b2Bq2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Kf3 e5 Ke4 g5 h4 c5 f4 g4 d4 g3 b4 a4 b6 a3 f6 c4 f5 c3 d6 g2 d7+ Kf7 b7 c2 d5 a2 d6 Qb6 d8R Nc6 b8Q Nce7 h6 Qa5 h5 Qc5 d7 Qa5 h7 Ra7 h6 Rb7 Na3 Ra7 Bb5 Rc7 Bd2 c1Q Nh3 g1N Qb3+ Nd5 Nf2 Bb7 Ng4 Bg7 Be1 Ne2 Rh3 Qd1 Rc8 Nd4 d8B Nf3 Nc2 Nh2 Be8+ Kf8 f7 Bf6 b5 Bg5 Rc1 a1B Nb4 Bd4 Rc4 Bde3 Rc5 Re7 Qc7 Qe2 Ra8 Qf1 Ra6 Qb6 Ra3 Qf6 Qc6 Bc8 Ba5 Ra7 Qc7 Qd8 Rh4 Bd7 Rc4 Ke7 f8R Nf4 Rf6 Nd3 Rfc6 Nc5+ Kd5 e4 Ke5 Kf8 f6 Na6 f7 Bf5 R6c5 Bg6 Qb6 Ke7 f8R Bg1 Rf3 e3 Rfh3 e2 Qc6 Bb1 Qe4 Bf2 Kf5+ Kf8 Kg6 Bfe3 Bg3 e1R Bf2 Rd1 Be1 Rd5 Qa2 Re5 Qb3 Ke7 Kg7 Nf6 Kg6 Rf8 h8Q Ng8 h7 Nh6 Qg7+ Nf7 h8Q Rg8 Kh7 Rf8 Qgg6 Rg8 Qgf5 Rg6 Qef4 Rd6 Q5e4 Rd5 Qg3 Re6 Qb8 Ree5 Qc7+
Q1r1b1B1/1K1R2nP/QB1Rbn2/1N1Q4/qQ3qr1/2R1kB2/R4N1r/R1b4q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 c5 Ke4 g5 h4 a5 d4 a4 b4 c4 b6 f6 h6 c3 h5 c2 d6 Ke6 d5+ Kd7 b5 a3 b7 a2 b6 g4 h7 g3 e6+ Ke8 d7+ Ke7 h6 Kd6 e7 Kc5 e8Q g2 d6 Ne7 Nh3 g1Q Na3 Qg3 Nf2 Qb3 Be3+ Kb4 Qd5 Kc3 Rh5 c1Q Qg6 Nbc6 b8Q Ra5 b7 Ng8 Bg2 Nb4 Qa8 Ra4 b8Q Qh1 Bb6 Ne7 Bf3 Qc7 d8R Be6 d7 Nf5 Nb5+ Kc2 e3 Ng7 Rg5 Rg8 h8R f5+ Kd4 Kd2 e4 f4 h7 Qbd1 e5 Be7 Rg2 Bg5 Qbb7 Qb8 Kc5+ Ke3 Qba6 Bh6 Qg4 Qb3 Rc8 Rd8 Rc6 Rc8 d8R Qbd1 Rd7 Bg5 Qc4 Nd5 Rhd8 Nf6 Qd5 Re4 Rd6 Qa4 R8d7 Rd4 Rcc7 Rd2 Kc6+ Rd4 Rb1 a1R Rbg1 Ra2 Ra1 Bf7 e6 Be8 e7 Re2 Qh4 Rb2 Bh5 f3 Bf7 Rd2 Bg8 Bh6 Rgg1 Rb2 Ra2 Re2 Rga1 Rb2 Nd3 f2 Qg4 f1B Nf2 Bc4 Qh4 Bh5 e8B Rc2 Bef7 Bg5 Be6 Be8 Bg4 Rd2 Bf3 Bb3 Qf5 Be6 Qd5 Bh6 Nh3 Rh2 Qe1+ Kd3 Qb4 Bd2 Nf2+ Ke3 Bf7 Bc1 Bg8 Qa7 Ba5 Qc5+ Kb7 Rg4 Bb6 Qd4 Rc5 Qf4 Rc3#
1b1n1Q1B/1Q2rB1q/bN1R1n2/Q1BrR2n/BQ1nb3/k3B1R1/3P4/Nn2K3 b - - 0 1 illegal: No possible last move, all moves rejected
1R1nQ2Q/1RNbr3/1Q2RbN1/N1B2n2/Bnr1r2P/K1N2Nn1/6k1/1q1Q3n b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 Kd6 d4 c5 Kd2 a5 Kc2 e5 Kb3 g5 f4 c4+ Ka3 c3 f6 e4 b6 e3 f7 g4 b5 e2 f5 e1R b7 g3 f6 c2 b6 g2 h6 a4 h7 Bh6 f8Q+ Ne7 f7 Re4 Be3 c1N Nc3 Nc6 b8R Ra7 b7 Bd7 Rb1 Qb6 Qe8 Ne2 f8N Nd8 Ng6 Nf5 Nf3 Neg3 Bb5 Bg7 Re1 g1N Rb3 Rg8 h8Q Nh3 Bg1 Nf2 Rb1 Rg4 Re5 Bf6 Re6+ Kc7 Bc6 Re4 Rb4 Qb5 d6+ Kb6 d5 Kc5 Rb2 Qd3 Rb6 Qb1 Rb3 Kc4 Rb5 Nfh1 Bc5 Rg7 Rb6 Re7 Rb2 Bc8 d7 Ra5 d6 Rb5 Qb3+ Kd3 Qb4 Ra5 Qb6 Rb5 Rb3 Rbb4 Rb2 Rbc4 Rb5 Nf7 d8N Bd7 Rb2 Rb4 Bb5+ Rbc4 Nc6 Nd8 Rb3 Bg5 Na5 Bf6 Nd4 Ke3 Nf3+ Rd4 Bc6 Kf2 Rb5 Kg2 Rb3 Bc8 d7 Rc4 Rb4 Nf7 d8Q Bd7 Qdc7 Nd8 Qd6 Qf1 Qd1 Qd3 Ka2 a3 Ba4 Qf1 Kb3 a2 Ka3 a1N Rc8 Bc6 b8N Bd7 Na6 Qd3 Nc7 Nc2+ Kb3 Qf1 Rb8 Qe1 Rb5 Nb4 Ka3 Qf1 Qa7 Qd3 R5b7 Qb1 Qb6
1b2QrR1/r5nK/1N1BB1n1/5b2/1nPR2BQ/nqb1N1n1/3RN3/4BNkN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 a5 b4 e5 c4 g5 h4 a4 f4 d6 c6 a3 b6 g4 h6 g3 h7 a2 b5 g2 h5 Bg7 c7 Qe7 h6 Ra6 b7 Ra5 b6 Ra4 Ne2 g1B Qd4 Ra6 Rh2 Qf7 Bd2 Nc6 b8N Nce7 b7 Ng6 Bh3 Bd7 c8B Qe7 Bg4 Be3 Ng3 Ra5 Be1 Bd2 Na6 Bc3 Nb4 Ra7 b8N Be6 Rg2 Qb7+ N8c6 N8e7 Nd2 Rf8 Nc2 Qb3 Rd1 a1N Ne3 Nc2 h8R Na3 h7 Bh6 Ndf1 d5+ Kd3 Bd7 Rgd2 Bg5 Qe4 d4 Rg8 Bh4 Nh1 Bg3 h8N Be6 Nf7 Bh2 Nd6 Bd7 Ke2 d3+ Kf3 Be6 Nd4 Bd7 Rc2 d2 Ne2 Bg3 Qd4 Bh2 Ke4 Be6 Rb1 d1N Rd2 Bg3 Bd7 Bh2 Nc8 Nf2+ Kf3 Ne4 Nb6 Ng3 Rbd1 Nc6 Qe4 Nd8 Bc8 Bd7 Rd4 Ne6 R1d2 Bb5 Bd7 Ng7 Be6 Bd7 Bh3 Bc8 Kg4 Ke7 Kg5 Bd7 Kh6 Kf6 Qa8 e4 Qe8 Bc8 Bg4 Bd7 Nc2 e3 Kh7 Bc8 Nc1 e2 Nce3 Bb4 Bf2 e1N Ne2 Nec2 Be1 Bc3 Qd8+ Ne7 Qe8 Nb4 Qh5 Ng6 Qh3 Ke7 f6+ Ke8 f7+ Ke7 f5 Kf6 Qh4+ Ke5 f6 Bd7 Rd5+ Ke4 Rd6 N3f5 R6d3 Bb8 Rd5 Ng3 R5d3 Re8 f8B Bc8 Bc5 Rf8 f7 Bd7 Bd6 Bc8 Bgf5+ Kf3 Rd4 Bd7 Nd1 Kg2 Bg4 Re8 f8Q Bc8 Qf7 Rf8 Qe8 Bd7 Nc1+ Kg1 Nde3 Bc8 Bd5 Bf5 Bf7 Bc2 Bfe6 Bf5 Ne2+
n3brRQ/1q1nB3/Nb1Pk1BB/4Rrr1/3Q2bK/3NBB1b/3bN2N/1R6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 a5 b4 f5 e4 c5 d4 h5 e6+ Ke7 g6 a4 e5 a3 g7 c4 d6+ Ke8 e7 Kd7 e8B+ Ke6 b6 a2 b7 c3 b5 c2 d7 Ra4 b6 Rc4 d5+ Ke7 d6+ Ke6 Bg6 Ne7 g8R f4+ Kh4 f3+ g4 f2 Nh3 Rb4 Bh6 c1B Qd4 Rb3 g5 Bf4 Be2 f1B Bf3 Rd3 Nc3 Qc7 d8B Be3 Nf2 Nd7 b8B Qb7 Ne2 Bh3 Rhb1 Nd5 Ba7 Nc7 Be7 Na8 Re1 Rd2 Rab1 a1R Nd3 Ra6 Qb2 Ra5 Qd4 Qd5 b7 Bg1 b8N Qb7 Qa4 Bb6 Na6 Rc2 Qd4 Rcc5 Bh7 Rd5 g6 Rdb5 g7 Rc5 Kg5 h4 Bg6 Rd5 Kh5 Bg4+ Kg5 h3 Kh4 h2 Qb4 Bc7 Be3 h1B Qd4 Rac5 Rb5 Bg2 Reb1 B2h3 Ra5 Nb8 Rab5 Bd7 Ra5 Be8 Rab5 Kd7 Ra5 Bb6 e6+ Kc8 Rab5 Rg5 Ra5 Rcf5 Re5 Ba4 Bd8 Bc6 e7 Kd7 e8N Bb5 Be7 Ba4 Rd5 Ke6 Nf6 Be8 Ra5 Bh5 Ng4 Nd7 Nh2 B5g4 Bf6 Be7 Rd5 Bed8 Be7 Ba5 Rf8 Bd2 g8Q+ Bf7 Qgg7 Bb6 Rg8 Be8 Rc5 Rh7 Qh8 Rhf7 Ra5 Rf8 Re5+
kB1r2BR/b2rP1br/3nQR2/BNRb4/Bq2b3/2n1K2N/NB1Q4/5bN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 h5 e4 f5 b4 c5 d6 h4 g6 c4 e6+ Ke8 e5 h3 e7 Kd7 e8N h2 d5 f4 g7 c3 g5 f3 g6 a4 b6 a3 b7 a2 b5 c2 b6 Qf6 e6+ Kd8 e7+ Kd7 Nc3 Qf4 Qd2 Qf6 Ke3 f2 Nc7 Na6 b8B Rh7 b7 Qh4 N7b5 Nh6 g8Q Nf7 g7 Nc7 Bb2 Qb4 Rc1 a1R Na2 Rb1 Bc4 f1B Bb3 Ra1 Ba4 Ra7 Re1 c1B Re2 Rb1 Rf2 Ra8 Rf6 Ra7 Nd4+ Nb5 Bc7 Ra8 b8B Bb7 Bb6 Kc8 Ba5 Bc6 d7+ Kb7 d8R Nc3 d6 Be4 d7 Nd6 Qe6 Bd5 g8B Bg7 Re8 Ra7 d8N+ Ka8 Nb5 Rd7 Nf7 Ra1 Ba3 Bb2 Ng5 Rd1 N5h3 Be4 Ne2 Rd8 Rg1 h1B Rg5 Bd5 Neg1 Bhe4 Bf7 Rd7 Rh8 Ba1 Bg8 Rd8 Rff5 Rd7 Bb2 Bd4+ Kf4 Ba7 Rf6 Bc6 Bac7 Nb1 Rh6 Ne8 Qh2 R7d6 Bc3 Rd8 Ba5 R1d7 Qd2 Nd6 Rc5 Bcd5 Ke3 Bb2 Be5 Bc3 Bh2 Bf6 Be5 Bg7 Bb2 Nc3 Rf6
Bn3QR1/2P4b/1Bk1N1bN/1N1bbB2/r3N1b1/1Bn3Qq/2BQ3R/r4nK1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 a4 h5 f4 b5 Kf2 d5 c4 Kd7 g4 e5 g6 h4 c6+ Kd6 f6 d4 f7 h3 c5+ Kd5 a6 b4 a7 d3 g5 h2 a5 b3 f5 b2 c7 e4 g7 d2 a6 Rh4 g6 Qe8 f6 Qa4 c6 Be7 f8N Rg4 f7 Qa5 Nf3 Qa2 Bc4+ Kc5 Ne6+ Kb6 f8Q Rf4 Nc3 b1B Nb5 Qa3 Bb3 Nf6 g8Q Bd6 g7 e3+ Kg2 e2 Nfg5 Nd5 Ne4 Bd7 c8B Be8 c7 Nc3 Qc2 d1B Be3+ Kc6 Bb6 Bg6 Qd2 Bh7 Ra2 Rh4 Rg1 h1B+ Kf2 e1N Rg2 Nd7 Kg1 Bg4 Rg3 Ng2 Bc2 Rb8 a8B+ Rb7 a7 Ne3 Rg2 Nf1 Rh2 Qb3 Ra4 Bf4 Rd4 Nb8 Rd8 Bg3 N4g5 Ba2 Qff2 B1e4 Bd4 Bef5 Na3 Nd1 Nc5 Rh3 Nce4 Bf4 Qf7 Qe3 g8N Bfg6 Nh6 Be5 Rg8 Qf3 Qf6+ Kd5 Bf5 Qc3 Qg2 Rd3 Bc5 Rd4 Qf8 Qh3 Qg3 Nc3 Ne6 Bb3 Qde3 Ra4 Qd2+ Kc6 Bd4 Kd7 Bf2+ Bd5 Be3 Rb1 Nb5 Rba1 Bd4 Bc4 Bd5 Bb3 Bc4 Kc6 Bb6 Bg7 B4d3 Bc4 Bb3 Bd5 Bdc2 Be5 a8B+
rN6/nPb1bq1n/1N1b1Bbn/7R/NQ1RQr2/B1K1bk2/N1B4R/4RN2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 Kf6 d4 g5 Kd2 e5 f4 c5 h6 a5 b6 a4 d6 g4 h5 a3 d5 c4 b5 e4 d7 a2 d6 e3+ Kc3 g3 b7 g2 h7 e2 b6 e1N h6 Nf3 Ba3 Nd2 Qe1 Bg7 Qe4 Ra7 Ne2 g1B Nc1 Bf2 Bd3 Nf3 Rh5 Qe7 d8R Bg3 d7 Na6 b8N Nb4 b7 Qe6 Bc2 Bf8 Nd2 Ra8 Nf1 Nc6 Rb1 Na7 Rh2 Kf7 f6 Ng5 f5 Bc7 Ra1 Bfd6 Rh5 Ne7 Rb1 Rf8 h8B Ng8 h7 Qe7 Bg7 Qe6 h8R Be7 R8h6 Nh7 Rh2 Bed6 R6h5 Nh6 Ra1 Rg8 Bh8 Rg4 Bg7 Qe8 Rb1 Rf4 Bh8 Kg8 f7+ Kf8 Be5 Ke7 f6+ Ke6 f8Q Be7 f7 a1B+ Kd2 Bb2 Bf6+ Bbe5 Na2 c3+ Kd3 Bcd6 Re1 Bc7 Qb4 Kd5 Qg8 Nf8 Qg6 Nh7 f8N Qf7 Na6 Nc6 Nc5 Na7 Na4 Bcd6 Re8 Bc7 d8N Bf5+ Re4 B5d6 Nd7 Ng8 Nc6 Nh6 Bd1 c2 Ncb8 c1B Bc2 Be3 Kc3 Bg1 Rd8 Bgc5 Re1 Be3 Ne5 Be4 Qg4 Bd3 Nc4+ Ke4 Qh4 Kf3 Ncb6 Bg6 Rd7 Rf5 Qhc4 Rf4 Qe6 Bdc5 Rd4 B5d6 Qe4+
n2R4/1RNRbB2/4B1B1/1K1QQN2/R2rb1Rn/r3Bb1r/1PNrkn1q/8 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 g4 Kf4 d4+ Ke4 f4 c5 b6 a5 d6 h5 d7 e5 f6 a4 d5 a3 g6 a2 b7 h4 g5 h3 d6 h2 f7 Qc7 d8R Ra5 g7 Ra3 d7 Na6 b8R Rhh3 g6 Be7 f8Q Bh4 f5 Nh6 g8B Ng4 g7 Bb7 f6 Nf2 f7 Be7 Kb5 c4 Be3 c3 Qe8 c2 f8N c1R Ne2 Kf3 Qd5+ e4 Rg1 h1B Be6 Qh2 g8B Rc2 Rg4 Rd2 Ng3 Bg2 Bgf7 Nc7+ Kb6 Bh1 Bd3 Na8+ Kb5 Ra4 Na3 Rd4 Nc2 Bg2 Rb1 a1R Nf5 Ra3 Ra1 Bh1 Bg6 Bg2 Bc4 Bh1 Ba2 Ke2 Bef7 Bf3 Ne6 Bf8 Nc7 Be7 Qe5 Bd5 Qg8 Bb7 Bae6 Bd5 Bh6 e3 Rb7 Bde4 Ra2 Kf1 Bf4 e2 Be3 e1N Ra1 Ke2 Ra2 Ra7 Ra4 Ng2 Rf8 Rh4 d8R Rh3 Rd7 Nh4 Rfd8 Ra6 Qgh8 Ra7 Qd5 Ra6 Qhe5 Ra7 Rb4 Ra3 Ra4
N2B1rQr/1Nr1n1q1/1bQ1rB2/3B1N2/1N1N4/2KnR1b1/P3Rk1n/Qb5B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 d4 Kf6 Kd2 b5 f4 e5 a6 g5 d6 c5 a7 e4 h6 c4 d5 e3+ Kc3 e2 h7 e1N d7 g4 d6 g3 h5 g2 h6 Qb6 d8B+ Be7 d7 Nc6 Rh3 Qb8 Bb2 Nd4 Qc1 Ba6 Ne2 g1B Ng3 Ne6 Na3 Nd4 Nc2 Qb7 Nb4 Qe4 Bg2 Be3 Bh1 Rc8 a8B Ndf3 Bd5 Nh2 Qc2 Nd3 Re1 Rc6 Ba1 Re6 Bb2 Kf7 f6 Kg6 f7 Bd6 Nf5 Bb6 Rhe3 Kh5 f8N Kg4 Ba1 Ne7 Qc1 Rg8 h8Q Qg2 h7 Qg3 Qd4 Rh8 Qc5 Bb8 Qc6 Qg1 Bb2 Bd6 Qa1 Bc8 Kc2 c3 Kb3 c2 Bf6 Qg2 Kc3 c1R+ Nc2 Rg8 h8Q Qg3 Qh7 Rh8 Qg8+ Kh3 Ng6 Kg4 Nd4 Qg2 f5 Bg3 Nh4+ Kf4 Kb3 b4 Kc4 b3 Kc3 Rd1 Nb4 b2 Bg5+ Kg4 f6 b1R f7 Qg1 f8N Rbc1+ Nbc2 Rd2 Nhf5 Rf2 Bf6+ Kf4 Nb5 Rf3 Nc7 Rf1 Na8 Qg2 Re4+ Kf3 Re5+ Kf2 R5e3 Re4 Ne6 Ba6 Ned4 Re6 Kb3 Bb5 Nb4 Ba6 Qb5 Rc7 Qc6 Bb5 Kc2 Ba4+ Kd2 Bc2 Kc3 Bb1 Bg5 Nc8 Bdf6 Ne7 d8N Qf3 Nb7 Qg4 Bh4 Qg7 Bhg5 Nc8 Bd8 Ne7 Bf6 Nc1 Nh4 Nd3 Be5 Kg1 R1e2 Rf8 Bf6 Be5 Re1+ Kf2 Nf5 Bg3 R1e2+
RR1b2B1/Q1bBnb2/K1N1N1n1/Q1r3B1/3QBb2/Bq1r3P/1R2Q2k/n5r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 e4 f5 Ke2 a5 Kd3 c5 Kc4 g5 d4 g4 d6 Ke6 d5+ Kd7 h3 g3 b6 g2 Kb5 a4 e6+ Ke8 h6 f4 h7 c4 d7+ Ke7 e5 f3 b7 a3 Qe2 f2 Rh2 a2 Nd2 c3 Nc4 c2 Ba3 c1B Na5 Bg7 d6+ Kf8 e7+ Kf7 e8B+ Ke6 Bf7+ Kf5 e6 Kf4 e7 Kg3 e8B Bgh6 Nf3 g1B Ng5 Bf8 Nc6 Be7 Bg2 f1R Ne6 Qc7 d8Q Nd7 b8R Nf8 d7 Qb7+ Qb6 Bf4 d8B Ng6 Bd7 Beg5 Bf6 N8e7 Bg8 Bh4 Bg5 Ra5+ Kc4 Bc7 b5 Be3 Qa7 Rb1 b6 Rg1 Kb4 Rd5 Qa5 Rd3 Kc4 Bef4 Kb5 Qa7 b7 Qe3 Ka6 Qf3 Rb1 a1N Ra8 Qd5 Rb2 Qb3 Rh1 Rc1 Re1 Rc5 Reb1 Kh2 Ka7 Bhg3 b8Q Bd8 Qbc7 Ba6 Qb7 Bb5 Qbb6 Ba4 Ka6 Bfc7 Qa7 Bgf4 Bf7 Rf8 h8Q Rg8 Qd4 Rg7 Nb8 Bc6 Bg8 Bd5 Nc6 Qc2 Rbb8 Qb3 Nf8 Bf7 Ne6 Rh7 Rb2 Rh5 Qf6 Rc1 Qfd4 Rg1 Bf6 Rf5 Bg5 Rc5 Be4+
4NQ1r/qkN3B1/1nR3Q1/1BN4B/1n1Q3n/BrBP4/1R1br1Q1/bK1b2n1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 g4 h5 b4 a5 b6 c5 f6 e5 d6 Kc6 d7 e4 b5+ Kb7 g6 h4 f5 e3 g5 c4 g7 e2 f7 h3 f6 c3 g6 c2 Ba3 c1N Qc2 h2 Ra2 a4 Nh3 Nh6 g8B Bb4 f8Q Ba5 g7 Nc6 f7 Nb8 Rb2 Qc7 d8Q Qg3+ Nf2 Qe5 Qg6 Bc3 Nd3 Qe8 Qd4 Bh3 Nc5+ Kc8 b7+ Kc7 Bh7 Qe4 g8N Qc6 Nf6 Nd7 b8B+ Kb6 Be5 Qc7 Rg1 h1R Ne8+ Ka7 Rg5 Nf5 b6+ Kb8 b7 Rh2 Bg7 Bg4 Qg8 Nh4 f8Q Na2 Re5 Ra6 Re6 Nb6 Rc6 Nb4 Qa2 Ka7 b8B+ Ka8 Bg8 Qa7 Bbe5 Ra5 Bf7 Rb5 Qad5 Bh5 Qdg2 Bf3 Kf2 e1N Ke3 Bd1 B1c4 Nef3 d3 Be1 Nc3 Ng1 Nd5 Bc3 Ndc7+ Kb8 Qde4 Be1 Bc3 Bd2+ Kd4 Kc8 Qf1 Re2 Qfg2 N4d5 Qe5 Rb3 Bb5 Nb4 Q6g3 Bh6 Bh5 Bd2 Qg6 Na6 Bab4 a3 Qee4 a2 Ba3 a1B Qe5 Nd7 Kc4 Nb4 Qd4 Kb8 Qgf5 Qa8 Qfg6 Be1 Bd2 Qa7 Rc2 Rb1 Bc3 Bd2 Ra2 Rc1 Rc2 Nb6+ Kb3 Rb1+ Bcb2 N4d5 Ka2 Kc8 Bc3 Rb3 Rb2 Nb4+ Kb1 Kb8 N5e6 Kb7 Nc5+
4Q1r1/R1Rq1r2/1k1B4/4n3/2b1PR1B/N1QB1N2/Bbb1Bn1K/QR1r2nn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 a5 b4 f5 e4 c5 d4 Kc7 e6 h5 g6 c4 g7 h4+ Kh2 f4 g4 a4 e7 a3 e8Q h3 d6+ Kb6 d7 a2 g5 f3 d5 f2 g6 c3 d6 c2 Bg5 c1N Nf3 Ra4 Bd3 f1B Na3 Nf6 g8B Bg7 Bgc4 Rg8 Bh4 Qe7 d8R Kb7 d7 Qc5 b6 Ra5 b5 Qd4 Be2 Ra6 Bcd3 Nc6 Rg1 Ra5 Rg4 Ne5 Rf4 Ra7 Qd2 Bh8 g7 Qd6 Qc3 Nfg4+ Kh1 Nf2+ Kh2 Nf7 Rb1 a1R Qee5 Qc6 Re8 Qd6 d8R Be6 Re7+ Qd7 Rc8 Bb3 Qed4 Ne5 Rc7+ Kb8 b7 Bc2 Kg3 h2 Ref7 h1N+ Kh2 Rf8 g8B Bf6 Rg7 Ra8 Ba2 Rf7 Rh7 Bh8 Qa4 Bg7 Qa6 Bh8 Qf6 Ka7 Qg7 Rc8 b8B+ Kb6 Ra7 Rg8 Bd6 Bh3 Qg1 Be6 Qd1 Bc4 Qf1 Rf5 Re7 Rf7 Qfe1 Qg4 Rec7 Qd7 Rb2 Nc6 Qcd2 Qe7 Bf1 Ne2 Qb1 Ng1 Bfe2 Qe6 Qbd1 Rc1 Rb3 Ba1 Qc3 Rb1 Qc1 Ne5 Q1b2 Rd1 Qc1 Bb2 Qa1 Bc1 Rb1 Qe7 Rc5 Bb2 Rcc7 Nc6 Be5 Kc5 b6 Qe8 b7 Qe6 b8Q Qd7 Qf8+ Kb6 Bd6 Ne5 Qe8
2kQR2r/B1q3Rr/N2nN1Pb/n1B4B/1R6/1rbb2n1/NNB5/KB3nQ1 b - - 0 1 illegal: No possible last move, all moves rejected
KB1b3N/RR2b1q1/b4b1N/1bnQ2r1/2PRN1B1/1Q1B1qn1/r2B3k/1R3R2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 c4 g5 f4 a5 b4 a4 h4 a3 b6 a2 h6 e6 c6 g4 c7 g3 h5 g2 b7 Ra3 h7 Ra5 h6 Ra4 b5 Qe7 b6 Qd6 Bd2 Ra7 Bd3 Ne7 Nh3 g1Q+ Nf2 Qc6 Qb3 Qg2 Nc3 Qg7 Rhb1 Rg8 h8Q Na6 b8R Nc5 h7 Ba6 c8B Ra8 b7 e5+ Ke3 e4 Kd4 e3 Nce4+ Kf7+ f6 Kg6 f5+ Kh5 Ng4 Kh4 Nh6 Kh3 Be6 e2 Rd8 e1B b8B Qb7 Rd7 Qc6 Rb7 Bh4 Ke5 d4 Bd7 Qg5 f7 Qg7+ f6+ Nf5 Be6 Be7 f8R Kh2 Rd8 Ng3 Bg4 Qa4 Kd5 Qa3 Kc6 Ra7 Bde2 d3 Rd4 Bd8 f7 Bhe7 f8R Ra8 Ba5 d2 Bd3 d1B Rf1 Bf3 Bd2 Bh1 Rbd1 Bg2 Rab1 a1B Rdd7 Baf6 Rd4 Re8 Qg8 Rf8 Qd5 Rg8 Ra1 Bf3 Rdb1 Bd1 Qb5 Ba4 h8N Qb3 Bc7 Qd1 Kb6 Qf3 Qb3 B4b5 Ra4 Rb8 Ka7 Rc8 Bb8 Rc6 Nf2 Re6 Ka8 Re2 Ne4 Rf2 Bc3 Ra2 Ra5 Qf7 Bd2 Rg5 Ra4 Qf8 Ra7 Qg7 Rb4 Ba4 Rb6 B4b5 Rbb7
K3nQ1Q/1R1n1n2/B1r1q2b/1P2r3/N1N1R1k1/1b2B1nN/5B1n/Rq1R1RB1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b6 Kd7 Ra4 g5 Ke2 a5 Kf3 e5 Ke4 c5 d4 c4 h4 g4 b4 g3 f4 g2 d6 c3 Kd5 c2 f6 e4 h6 e3 h7 e2 h5 e1N f5 Nh6 b7 Qc7 f7 Nd3 f6 Na6 b8R Bg7 f8N+ Ke8 d7+ Kf7 d8B Nf5 h6 Ng3 Na3 Ra7 Qf3 Ra8 Ne6 Kg6 f7 Ndc5 Nh3 Qe7 Kc6 g1N d5 Rf8 d6 Re8 d7 Nc7 h8B Ra6+ Rb6 Qf6 h7 Bh6 f8R Qe7 Qf4 Kh5 Bd4 Nf3 h8Q Nh2 Bb5 Qf6 Be7 Qg6 d8R Qf7 Bd2 c1N Be1 N1d3 Bg5 Re7 Rfe8 Qg6 Qff8 Kg4 Rf1 Qf5 Bg1 Ne5+ Kd6 Bb7 B5e3 Bd5 Be1f2 Bb3 Nc4 Nf7+ Kc6 Qf6 Ra3 a4 Rdd1 Nd7 Kb7 Qf5 Ra2 a3 Nc5 Re4 Ree6 Ne8 Re5 Qe6 Na4 Ra5 Ba6 Rc5 b5 Rc6 Bg5 Re2 Ka8 Re4 Rb7 Re3 Raa1 a2 Rac1 a1Q Bf4 Qb2 Ra1 Re4 B4e3 Qb1 Red5 Re5 R5d4+ Re4 Bf4 Re5 Re4 Kh4 Bd2+ Kh5 Bf4 Kg4 B4e3+
rrbBN2q/2b2PQn/1N1kN3/3Br1B1/Rn3KQ1/B2R3N/1rN5/q2Rr3 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 a5 d4 g5 b4 c5 h4 e5 b6 c4 b5 a4 h6 a3 f6 c3 d6 a2 h7 c2 f7 Ke6 d7 Nh6 b7 Qa5 d8R Bd6 f8N+ Kd5 h5 Bf5 b6 Ng4 h6 Qb4 Nh3 Ra5 Bc4+ Kc6 d5+ Kc5 Ba3 Nc6 b8N c1Q b7 Ra4 Ne6+ Kb6 Nd7+ Ka7 b8N Kb7 Rf1 Ra5 Nb6 Bc7 d6 Nf6 d7 Qf8 Bd5 g4+ Kg3 e4+ f4 Rg8 h8Q e3 h7 e2 Qg7 e1R h8B Nh7 Qdd4 Re5 Rd1 Rb5 Qe4 Rb2 Qf3 Bd3 f5 Ba6 f6 Qc3 Kf4 g3 f7 g2 Qfg4 g1R Be7 Qa3 Bg5 Rge1 Rd3 Qa5 Na3 Qe8 Rad1 a1R Nc2 Rab1 Rc8 Qa1 d8B Rf8 N8d7 Rg8 Bb3 Nb4 Nf6 Kc6 Bd5+ Kd6 Ra8 Bc8 Ra4 Qe7 Qg6 Re8 Bg7 Qf8 B7h6 Qh8 Qg7 Rb3 Bh4 R1b2 B6g5 Rc3 Bf2 Rc5 Be3 Ra5 Bd2 Ra8 Bc1 Rb3 Ba3 Rb2 Kf3 Rg8 Kf4 Ba6 Bb3+ Kc6 Be7 Rgb8 Bd8 Bc8 Bd5+ Kd6 Ne8+
3k4/nPR2B1n/1B1nqbN1/QBK2N2/1nnN4/3R4/1R1qr2B/1Q1bBN1r b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 h5 Kd3 e5 Kc4 a5 d4 c5 f4 e4 g4 h4 b4 a4 d6 a3 d7+ Ke7 g6 e3 g5 a2 f6+ Ke6 g7 h3 f5+ Kf7 b6 h2 b7 e2 d5 e1N b5 Ne7 g8N Nd3 d6 Na6 b8B Bb7 b6 Ra7 Bd2 Nf4 Ne2 Rh4 Be1 Nfg6+ Nd4 Qc7 d8B Ke8 Nh6 Bf3 b7 Nb4 Nd2 Qc6 Rc1 a1N Bb6 Nac2 f7+ Kd7 f6 Bg7 f8Q Ra2 f7 Bf6 Qg7 Nc8 Nf5 Nf8 g6 Nh7 f8N+ Ke8 Rg1 h1N Rg2 Ng3 Qc7 Na7 g7 Rh1 g8B Ne4 Ng6 Qd7 Bd5 Qe6 Be2 Bh5 Nf1 Bf3 Qd3 Rb2 Qb3 Ra2 Qb1 Na3+ Kb3 Nc4 d7+ Kf7 Qe5 Ned6 d8R Bg4 Rd7+ Ke8 Rc7 Kd8 Rd1 Rc2 Bd3 Ra2 Rb2 Be2 Rdd2 Bd1+ Kc3 Na5 Bb5 c4 Rb3 Rb2 Rd3 Re2 Rb2 Ne8 Nb3 Nd6 Kd4 c3 Kc5 c2 Nbd4 c1Q+ Bdc4 Qd2 Bb3 Qe8 Bf7 Qe7 Qd5 Qe6 Qda2 Nac4 Qa4 Rh4 Qa5 Rh1 Rc6+ Kd7 Rh3 Ne8 Bh2 Ned6 Rc7+ Kd8 Rd3
nKQ1n3/1bRB4/1B2N2Q/1RqR2rb/3Qb1B1/1BB3k1/rbNqP1R1/7q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 c5 b4 a5 d4 h5 g4 c4 e6 Kd6 g6 c3 b6 a4 g5 h4 b5 c2 e7 h3 e8B h2 g7 a3 g6 a2 b7 Rh3 b6 Be6 Na3 Nc6 b8R Rh5 b7 Ra7 Bd7 Nf6 g8B Qa5 g7 Qd8 Qd2 Ra6 Nf3 Be7 Bh3 Ra8 Rd1 h1B Bb2 c1Q Ng5 Rh6 Bg4 Ne8 Bc3 Na7 Nc2 Bf7 Ne6 Be4 Rb1 a1Q Rb5 Rh8 Rc8 Bf6 Rc7 Bh5 b8Q Nc8 Qe3 Nb6 Qc8 Ra3 Bf7 Qe7 g8R Na8 Rg5 Rh6 Rg1 Qab2 Rg2 Qh1 Qh3 Ra2 Qh4 Rh7 Qh2 Bg6 Qh6 Bh5 Bg8 Bh8 Bf7 Qf8 Bg8 Rg7 Bf7 Ke7 Ke5 f4 Ba5 Qbc1 Nc5 Bf5 Bc6+ Bd7 Ke4 Rg6 d6+ Kf6 Kd5 Bf5 d7 f3 d8Q+ Qe7 Bg8 Bg7 Be1 Bf8 Bc3 f2 Be6 Qd2 Bg8 Ng7 Be8 Bd3 Kc6 Be4+ Qd5 Qe5 Kb7 Bd6 Bc6 Ne8 Kb8 Bf8 Qc4 Be7 d5 Qed4 Nd3 Ba3 d6 Bb2 d7 Qe5 Nc5 Qed4 Bf5 Ke5 Bg4+ Kf4 Qd3 Qe5 Bb3 Qd5 Re5+ Rg5 Qd4 Qc4 Rd5 Qb4 Rh2 Kg3 Ne6 Qa3 d8B Qc5 Re7 Bf5 Bb6 f1B Rd8 Bh7 Rc7 Bg2 Rd6 Bf3 Bd7 Bb7 Rd5 Be4 Rg2+
Q4Qq1/4B1n1/3N1QR1/nr3bbQ/k7/Nr1RnBNq/2QPRK2/3rn2N b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 h4 c5 b4 a5 f6 e5 f5 g5 d6 e4 b6 Kc6 h6 g4 d7 g3 f7 a4 b5+ Kd6 h5 c4 h7 Kc5 h6 Kb4 f6 c3 b7 g2 b6 a3 Nh3 g1Q Qc2 a2 Nf2 e3 Rh2 e2 Ba3+ Ka5 Nh1 Qe7 d8R Qee3 Rd3 Qgg5 Bg2 Bg4 Bf3 Qe8 Be7 Qd7 Kf2 e1N Na3 Nc6 b8Q Bf5 b7 Qg4 Rb1 a1N Rb6 Qg6 Qd6 Rb8 Qf4 Bg7 f8N Qge8 f7 Bf6 Qd4 Bg5 Ng6 Nf6 f8Q Nh5 Nf4 Ng7 Nh5 Qf7 Rg2 Qg8 N5g3 Qde6 Qg4 Qb3 Qh5 Ka4 Rh2 Na5 Re6 Re8 Rg6 Rb8 Qb2 c2 Qff6 c1R Qc2 Re8 b8Q Rd1 Qa8 Rb8 Qf8 Rb5 Qf6 Qe8 Qf8 Rg8 h8Q Qd7 Qf6 Rgb8 h7 Qd5 Qd8 Qg8 h8N R8b6 Nf7 Rb8 Qcc3 Nac2 Nd6 Ne3 Qdf8 Qbe6 Qc2+ Rb3 Nc8 Rb5 Rg2 Qe4 Nd6 Qg4 Kg1 Qh4 Re2 Qh3 Kf2
3rQ2Q/3r1q2/nBk1N1bq/1n2Q3/BbRr3Q/1N2B1nN/nQ1P1N2/K4R2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 b4 a5 h4 g5 f6 e5 f7 c5 f5 c4 h6 g4 h5 a4 f6 e4 b6 g3 h7 g2 h6 c3 b5 c2 d6 e3 b7 e2 b6 a3 Nc3 a2 Nh3 g1N Bb2 c1R Ne4 Rc5 Qc1 Re5 Nef2 Ne7 Bd4 Ra4 Qb2 Qc7 Be3 Rd4 Rc1 a1N Rc4 Na6 b8Q Rg8 h8Q Reg5 h7 Rd3 b7 Bh6 f8Q Nd5 f7 Rg4 Qhf6 Rdd4 h8Q Nb3 Qh4 Ndb4 Bg2 Na2 Bc6+ Ke6 d7 R4g7 Bb5 Kd5 d8B Bf5 Ba4 Bg6 Qe8 Bf4 f8N Qf7 Bc7 Bd6 Bb6 Bb4 Ne6 Rf8 Qbf4 Rfg8 b8N Rh7 Qee7 Rd8 Nd7 Rg7 Qee8 Rh7 Ng4 Rg7 Ndc5 Rh7 Kf2 e1Q+ Kg2 Qc7 Qh4f6 Qh4 Kf1 Qh6 Ke1 Nc3 Qh4 Nge2 Ngf2 Nbc1 Rf1 Nb5 Kd1 Na2 Nb3 Ng3 Qf5+ Kd6 Kc2 Qcg7 Kb1 Qf6 Nd3 Rhd7 Ka1 Qf7 Qff6 Kd5 Ndf2 Kd6 Nec5+ Kd5 Qfe5+ Kc6 Ne6+
KB2bQ2/Q1Bb3B/1b2q3/BQR3rn/2R1BR2/knQN4/1nrP3n/1q2N3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 b4+ Kb6 g4 c5 f4 h5 g6 e5 g5 a5 g7 h4 f6 c4 g6 h3 d6 c3 Kd5 c2 f7 e4 f5 e3 d7 e2 f6 e1N Bb2 c1Q Bg2 a4 Nf3 h2 Bc3 a3 Qe2 a2 Ne5 Rh7 Be4 Rh3 Na3 Qe8 d8B+ Kb7 b6 Bc5 f8Q Bd7 b5 Bg4 f7 Bf2 Nd3 Ra7 Ba5 Nd7 Nc2 Nf3 Nce1 Qb1 Bc7 Rg3 Qa3 Rg2 f8Q Nde5 Qc3 Bd7 Rf1 h1B Qe3 Bg1 Rf2 Nh2 Rf4 Rg5 Qed4 Qd1 Rc1 a1N Qa4 Nf6+ Kd6+ Bc6 g8R Nh5 g7 Nb3 Rh8 Qc2 g8B Qb1 Bgh7 Bf3 Rg8 Bg4 Rg6 Bd4 Rgf6 Bd7 R6f5 Ra8 Qac4 Rc8 Qd5 Ka8 b7+ Ka7 b6+ Ka6 b8Q Be3 b7 Bb6 Qdd4 Kb5 Qdc5+ Ka4 Qb5+ Ka3 Qa7 Qf7 b8B Be8 Rc2 Bcd7 Rc1 Neg4 Rc5 Nf2 Qe5 Nd1 R1c4 Nb2 Qc3 Bh3 Qd7 Qf5 Kc6 Qe6+ Kb7 Qd1 Rd4 Na4 Qc2 Qeg4 Rcf5+ Nbc5+ Ka8 Nb2 Qb5 Qb1 Bd8 Rc7 Rb4 Nb3 Qc1 Rc4 Rc5 Qf5 Qc2 Qf6 Qc1 Bhd7 Bdc7 Rc3 Rbc4 Qe6 Ne5 Qe7 Qc2 Qe6 Qd3 Rc1 Qc3 Rc2 N5d3
Q1B1Q2K/2B2b2/2N1r2b/B1rNn1Q1/2RN1qnq/2B3RB/1NPb4/2q1k2q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 f4 g5 b4 a5 h4 a4 c6 g4 c7 a3 h6 a2 h7 g3 b6 g2 h5 d6 b7 Ra6 h6 Rc6 b5 Ra6 b6 Nd7 b8N Qe8 b7 Nb6 Qd2 Na4 Rh3 Rb6 Rg3 Bd7 c8B Qd8 Nf3 g1Q Na3 Qf2 Nc6 Be6 b8B Nb2 Nfd4 Bf7 Bh3 Nd3 Nc4 Bg7 Rb1 a1Q Nb2 Qf1 Bc7 d5+ Ke3 e4 Qa5 Qa2 Bd2 Qa1 Qb5 Qh1 Ba5 Qa4 Ra1 Qc4 Ra4 Ne5 Qc5 Qcf1 Rc4 Ra6 Ne6 Qc1+ Kd4 e3 Qb5 e2 Qc5 Ne7 Qb5 Rg8 h8B e1B h7 Ng4 Qc5 Ng6 Qb5 N6e5 Qc5 Bg6 Qb5 Kf7 f6 Bd2 f5 Bgh6 Nf4 Re8 Bg7 Re6 h8Q Rb6 Qc5 Qe7 Qd8 Rb5 Qa7 Qf8 Qa8 Rc5 Qe7+ Kg8 f7+ Kh7 f6 Qhe1 Rf3 Qh4 Rg3 Qh1 Qe8 Qd6 f8Q Bf7 Qfe7 Qc1 Nfd3 Kg6 Ndb4 Kg5 Bh8 Kf4 Q7d8 Bg6 f7 Bh5 f8N Bf7 Rg1 Kf3 Qg5 Kf2 Rg3 Rf6 Ne6 Ke1 Ng7 Re6 Nf5 Nf3+ Kd3 d4 Nd5 Nfe5+ Ke4 d3 Nfd4 Bc3 Kf5 d2 Bf6 d1Q Nf4 Nd3+ Nd5 Bd2 Nf3+ Kf2 Bfc3 Qh1 Nfd4 Ke1 Qf6 Bg8 Kg6 Bf7+ Kh7 Qf4 Qg5 Nde5 Kh8
1NBK1k1r/n2RBr1r/N7/4BR1n/2N5/Br3b1Q/1NPQ2qB/1b1Rbq2 b - - 0 1 illegal: No possible last move, all moves rejected
1k3b1n/2N2R1B/N2Q1K2/3bR2r/n1q1rQQN/2Rq1NB1/1Pr1Qq2/6Nq b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 g5 Kg4 a5 f4 e5 d4 c5 h4 Kc7 b6+ Kb7 d6 a4 h6 e4 h7 c4 d5 e3 d7 e2 f6 e1Q Kf5 g4 f7 g3 h5 c3 h6 a3 d6 a2 Rh3 c2 Qe2 g2 Nd2 Be7 f8Q Nc6 Ndf3 Kb8 b7 Ka7 b8N Qd2 Na6 Qe3 Kg6 Qd3+ f5 Kb7 Bf4 c1Q Bg3 Qcc2 Re1 Qb6 d8Q a1R d7 Qdc4 Qf7 Qd1 f6 Qf2 Qfe6 Nb8 f7 Bb4 f8Q Ra4 Qf4 Ne7+ Kf6 Ng6 Qeg4 Bf8 Qde7 Qd2 Qed6 Qdd3 d8N+ Ka7 Ne6 Bb7 Nec7 Bd5 Rc1 Rb4 Rh5 Ra4 Re5 Nd7+ Kg5 Rc8 Rc3 Nb6 Kf6 Rg8 h8N Rg7 Nh3 g1Q h7 Qh1 Nhg1 Ra5 Bh3 Na4 Bf1 Re7 Bg2 Nh4 Ng6 Ree8 h8R Rc5 Rf5 Re4 Rh7 Ra5 Re5 Rb5 Ne7 Ng6 Nf5 Nh8 N5h4 Ra5 Rf7 Rb5 Nb4 Kb8 Bf1 Rc5 Nba6+ Kb7 Bh3 Qb5 Ra3 Rb8 Re8 Rc2 Qg7 Qbc4 Bf5 Bc6 Bg6 Ka7 Qg8 Rb5 Rc3 Rh5 Bh7 Bd5 Re5 Kb7 Qgg4 Ka7 Nc5 Kb8 N5a6+
rNQ1bQ2/1B2N2R/1kQb1Q1r/3qR1K1/b1B1qn2/1n2B3/P5Bq/N5bB b - - 0 1 illegal: No possible last move
1q3N1Q/qQ1Bk3/B2R3R/1qr2n1n/Rr4bQ/2n4P/1q1B2Q1/bR1QK1N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 a5 e4 g5 b4 f5 d6 c5 e6 c4 d5 f4 b6 g4 e5 a4 h6 a3 d7+ Ke7 b7 g3 b5 c3 b6 f3 h7 g2 Ba6 c2 Nc3 a2 Nce2 Nc6 b8Q Bh6 d6+ Kf8 e7+ Kf7 b7 Nf6 Nd4 Bg7 Ne6 Nh5 Nf8 Nd4 Bd2 c1N e6+ Kf6 e8R Nf5 h3 Ne2 e7 Nc3 Qc7 Rg8 h8Q Rb8 Qc6 Kf7 Rb1 a1Q Rb6 Qc7 d8Q Qb2 d7 Be5 Qe4 Rg5 Rh6 Qcb6 Qh4 Q6b5 Qa5 Bd4 Rd8 Bf6 e8B+ Ke7 Qb6 Q5b4 Qbf2 Qf4 Ne2 g1Q+ Qf1 Qgd4 Qg2 Qa7 Ng1 f2+ Kf1 Ra8 b8Q Bg7 Qb6 Rb8 Qc7 Rb4 Qb6 Bb7 Ra8 Bc8 d8R Qfb8 Rdd6 Be6 Bd7 Bd4 Qbb7 Bf6 Qgg4 Bg7 Kg2 f1Q+ Kh2 Ne3 Qdf3 Nb5 Ne2 Qbb1 Qfg2 Ba1 Rg1 Nc3 Bc4 Qc5 Ra4 Qff5 Ba6 Qb2 Rb1 Qca7 Kg1 Qb5 Kf2 Bf5 Ke1 Be6 Qhg3 Rc5 Ng1 Bf5 Qd1 Bg4 Q3f2 Nf5 Qh4+
1b2Q1r1/2Bq1rNK/1Qq5/4R1N1/Q1r1n1r1/B1n1nkP1/4R1N1/1b1QBB1Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Ke4 h5 d4 a5 b4 e5 f4 c4 d6 h4 d7 h3 b6 a4 g6+ Kf6 d5 a3 b5 c3 d6 a2 g3 c2 g7 h2 b7 Ra3 b6 Be7 Nh3 Rh7 Ng5 Rf3 Nc3 Na6 b8B Bf8 b7 Qb6 d8B+ Ne7 g8Q Rh6 d7 Qf2 Ne2 Rh5 Ba3 c1R Qa4 Qa7 Ba5 Rh4 d8Q Rg4 Qdd1 Nd5 Qh7 Bd6 Be1 Rc7 Rb1 a1N Rb2 Nc2 Rg1 Rf7 Bc7 h1Q b8Q Nce3 Qb6 Rf8 Rb5 Rg8 Rg2 Bb7 Rf2 Qg2 Qh1 Nc3+ Kd3 e4+ Kd4 Qa8 Re5 Qh3 Rg2 Nc5 Rh2 Kg7 f6+ Kh6 f5 Kh5 f7 Bd5 f8Q Ba2 f6 Qc6 f7 Bb1 Qfa8 Rf6 f8N Rf7 Bd8 Bb8 Bc7 Rgf4 Nfe6 Kg4 Ng7 Qh7 Rg2 Qf5 Re7 Qc8 Ke5 Q8d7 N5e6 Kf3 Re8 Rg4 N2f4+ Ne2 Re7 Ba7 Qe8 Bb8 Qdd4 Nc3 Re2+ Ng2 Qdd1 e3 Nd5 Rc4 Ndf4 N5e4 Ng5+ Kg4 Rb2+ e2 Re6 Ne3 Ng2 Nf5 Rd2 Ne3 Nh4 Nc5 Bf2 Nf5 Ra2 Rgf8 Ng2 Rg8 Ne4 Kf3 Rc2 Re7 Kf6 Rf7+ Kg6 Nd5 Qd2 e1R Kh7 Nc3 Re5 Rd1 Qe1 Ne3 Re2 Rd6 Qd2 Rg6 Be1 Rg4 Qdd1 Rg6 Nf2 N5e4 Nh3 Rg4 Ng5+
1r5Q/Q5nR/1R1QR1b1/1B4q1/q3R1nN/1n1QQP1K/kr5b/Bq1N1B1q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 d4 a5 f6 c5 d6 Ke6 d7 Kd5 g6 h5 b6 a4 f7 e4 g5 e3 b7 h4 g7 e2 b5 Kc4 d5 h3 b6 h2 g6 a3 d6 a2 Qb3+ Kd4 Nc3 c4 Nf3+ Kd3 Nd1+ c3 Nh4 Ne7 g8R Nbc6 b8R Ra6 g7 Rh7 f3 Ne5 Kf2 Ng4+ Kg2 Rh6 b7 Nf5 Bb2 Qg5 d8Q Rh8 d7 Rb6 Kh3 Bd6 f8Q Kd4 Rc1 e1Q Ba1 Rb4 Qe6 Rb2 Qe3+ Kd5 Qff6 c2 Re8 Qb4 Qc7 Qa4 d8Q Be6 g8B Bf7 Rb1 c1Q Re6 Ng7 Qc2 Bg6 Qcd3+ Qd4 Qe8 Qc2 Rc1 Qb1 Rc2 Bf4 Re2 Kc5 Re4 Kb4 Bc4 Qd7 Qa6 Qa4 Re6 Bg3 Bb5 Bc7 Qea7 Be5 Qdd6+ Kb3 Re4 Bf4 Rc8 Bg3 Rc6 Rf8 Qee7 Rb8 Rb6 Bf4 Rg1 Bg3 Rg2 h1Q+ Rh2 Bf4 Qe8 Be5 Qh8 Bg3 Qf4 Ka3 Qe3+ Rb3 Bbd3 Bf4 Bf6 a1N Rbd6 Ra8 b8Q Rc3 Nf5 Nb3 Rb6 Ne8 Qd6+ Rc5 Ba1 Rb8 Qc4 Be5 Qcd5 Ng7 Bb5 Bg3 Qdd3 Be5 Bg2 Ka2 Bf1+ Bb2 Kg3 Rc2 Rh7 Be5+ Rf4 Rb2 Nh4 Bc3 Rfe4 Bd4 Qe1 Bg1 Qee3 Bh2+ Kh3
Q3q2Q/4NB2/k1bBR2b/Bbnq1r2/NK1bR2r/n3P1R1/1R4N1/1R2Nr2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Kd7 Kd2 g5 Kc3 c5 h4 Kc7 b4 Kb6 h6 a5 h7 f5 e3 c4 h5 f4 e6 f3 d6 f2 d7 a4 d5 a3 h6 a2 e7 g4 e8R g3 d6 g2 Rh3 Na6 Rg3 Qe7 d8N Nc7 d7 Nf6 Nc6 Qc5 d8R Qf5 Rd4 Nd7 Nf3 g1R Qa4 Rg8 h8Q Qg4 h7 Qf4 Re6 Kb7 b6 Rg6 b5 Qg5 Bd2 Qd5 Rde4 Rg4 Ne1 Rh4 Ne7 Ra5 Kb4 c3 Bc4 c2 Nc3 f1B Rb1 c1Q Qa3 a1B Na4 Nc5 Qa2 Ka8 b7+ Ka7 b8R Bb7 Bb3 Be2 b6+ Ka6 Bc3 Bc6 b7 Bb2 Nf3 Qd8 Qg7 Rg4 h8N Nb5 Nb6 Nd6 Nhg6 Qc8 Ne1 Bc4 Rf6 Nd7 Qh8 Ka7 Nf4 Rf1 Nfg2 Qe8 Rd8 Nb5 b8B+ Kb7 Bf4 Bh6 Bce5 Rh4 Bc7 Qd1 Qa4 Be2 Bf7 Na3 Rfe6 Rf5 Qa5 Beb5 Na4 Nc5 Rd2 Bf6 Rdb2 Qd5 Bfd6 Bd4 Bb8 Bc4 Qd8 B4b5 Bbc7 Ka7 Ba5 Ka6 Qa8+
1Q3B1q/1Nb2KR1/4N3/QBr5/2q3R1/Q1qP1nQN/1RbR4/1nnkrn1R b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 a5 h4 c5 d6 g5 h6 c4 h7 g4 b6 a4 h5 a3 d7 e6 h6 g3 b7 g2 f6 c3 f5 a2 f7 c2 f6 Kb3 Qh5 Be7 f8N Qb6 d8R Qa7 f7 Na6 b8Q+ Nb4 Na3 Qa4 Bb5 Ra5 Rb1 a1Q Nh3 g1N Nc4 Nd5 Nd6 Ngf6 Nb7 Nc3 d3 Nfe4 Rd4 Ng3 Rg4 Bd6+ Kf6 e5 Ne6 e4 f8Q e3 Kf7 e2 Qe7 Rd8 h8R e1Q h7 Bd7 Bh6 c1N Rhg8 Kc2 h8R Kd1 b4 Nf3 Rb2 Nb1 Bf8 Bc7 R8g7 Re8 Rhh2 Qc3 Rhd2+ Ke1 Qd5 Nf1 Qa2 Bc6 Qa3 Bd5 Qg5 Bb3 Qa7 Bc2 Qb6 Ra6 Qa5 Rc6 Qf4 Qab3 Qh2 Qd5 Qg1 Qdd4 Rh5 Rc5 Qg3+ Qf2 Rh8 Qa2 Rhh7 Qac4 Ng5 Qe4 Ba6 Na2 b5 Ba4 b6 Qed4 Bb5 Qdb4 Nbd8 Qbc4 b7 Nc1 b8Q Bc2 Nb7 Re7+ Kg6 Re8 Nf4 Re3 Rh1 Re4 Qg1 Qh4 Nge6 Qh8 Kf7 Re3 Nh3 Ree5 Rf2 Kd1 Qg3 Re1 Rd2+
1Bb2bK1/r2k1n1B/B5Q1/Q3q1nR/4BRN1/PB1N3r/NQ1qqq2/1n5Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 h5 Kd3 b5 Ke4 e5 g4 c5 d4 b4 f4 h4 d6 c4 Kd5 c3 f6 c2 a3 e4 f7+ Kd7 g6 e3 a6 e2 g5 e1Q f5 h3 f6 b3 g7 b2 a7 h2 g6 Qc3 Ba6 Nc6 Bf4 c1N Ne2 Rb8 a8B Na2 Nc1 Rb7 Nd3 Qb4 Nc3 Nh6 g8B b1Q g7 Qc1 Bh7 Qd2 g8B Bg7 f8Q Qa4 f7 Nc1 Na2 Be5 Qg7 Qg5 f8Q+ Qe7 Qff6 Qdc2 Qfg6 Kd8 d7 Qeb4 Ke6 Qaa5 d5 Bd6 Qb2 Bf8 Bb8 Ne2 Qdg1 Qcd2 Rf1 Qh4 Rf4 Ra7 Qf1 Qf2 Qfg2 Ng4 Kf7 Ncd4 Qf3 Nc3 Qd1 Bc5 Kg7 Ke7 d8N Nf3 d6+ Kd7 Nf7 Nh6 Be4 Nb1 Kf8 Ng5 Nfe5+ Kd8 Qg1 Nhf7 Ng4 Qde2 Kg7 Qad2 d7 Bd6 Nf6 Ke7 d8Q+ Ke6 Qa5 Be7 Ng4+ Kd7 Qf1 Bb4 Rg1 h1Q Rg2 Qh2 Qh1 Qhg3 Rh2 Qge3 Rh5 Qc5 Rf3 Qe5+ Rf6 Nd6 Bb3 Ndf7 Bg8 Rh6 Bh7 Bc5 Kg8 Bf8 Rh2 Rh3 Rf4 Re3 Rh4 Rh3 Rh5
KN4r1/1R2Q3/2B2nN1/N1bkq2q/2Nn1P2/1B1RBn1b/2Qrb1nQ/6BB b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 a5 Ke4 c5 d4 e5 b4 h5 g4 h4 d6 c4 Kd5 c3 d7 c2 g6+ Ke7 g5 h3 b6 a4 g7 a3 b7 a2 g6 e4 b5 e3 b6 e2 Nd2 e1N Ngf3 h2 Nb3 Rh6 Bg2 Nd3 Rb1 a1N Na5 Nb2 Be3 c1Q Qc2 Qd1 Ne5 Rh7 Nec4 Qe2 Rhd1 h1B Rd3 Na6 Kc6 Nd1 b8Q Qe8 f6+ Ke6 d5+ Kf5 f7 Nb2 b7 Nf6 g8B Nd1 g7 Qe7 d8B Qe5 d6 Ke6 d7 Nc5 Bb6 Q2h5 d8Q Ncb3 f4 Bc5 f8N+ Kf5 Qbc7 Nd2 b8N Nab3 Qce7 Nf3 Ng6 Ke4 Be6 Bd7+ Kb7 Nd4 g8B Rg7 Bgf7 Rg8 Be8 Ra6 Ba7 Rd6 Ka8 Bc8 B6f7 Bh3 Rb7 Rd7 Bg1 Ne3 Qb6 Rd8 Qbb2 Rd6 Ba4 Rdd8 Bfe8 Kd5 Bb3 Rd7 Bf1 Rd6 Qh2 B1g2 Qc2 Bg4 Bea4 B2h3 Bg2 Rdd8 Bh1 Ng2 Rd2 Nfh4 Be8 Be2 Rd3 Nf3 Na3+ Ke4 Nb5 Nf5 Na3 Bb4 Bae3 Bc5 Rd2+ Rd3 Bd7 N5d4 N3c4 Kd5 Qb2 Rc3 Rd3 Rc2 Qc1 Rd2 Qc2 Rg7 Be8 Rg8 Bc6#
1B1NQ2b/2Rn3B/k1K1BB2/8/1PN1Qnrn/q1Rq4/brRR1N2/3nR2q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Ke4 Kc7 d4 Kb7 b4 a5 g4 h5 f4 e5 f6 c4 g6 c3 f5 a4 b6 a3 g5 c2 d6 a2 Kd5 e4 d7 h4 g7 h3 g6 e3 f7 h2 f6 e2 Nd2 e1Q Bd3 Na6 Nc4 Rh7 Bb2 c1Q Qg4 Rb8 Nh3 Qee8 Re1 h1N Nf2 Be7 f8Q Rh2 f7 Nh6 g8R Bf6 g7 Nf5 Qe4 Nhg3 Bb1 Qee7 Qe8 Nh5 f8R Nc5 Rf7 Ka6 b7 Nh4 Kc6 Nf4 d5 Bc3 Re2 Qh1 d6 Qg5 Rd2 Qg3 Rc2 Be5 Rh8 Qa3 g8B Bc3 Rhh7 Bh8 Bf6 Ra8 b8B Rg2 Rc1 Rg4 Rc3 Ra7 Bc2 Ra8 Rd1 a1N Re1 Ra7 Bb1 Nc2 Rf8 Ra8 Be6 Ne3 Bc2 Nd1 Rg8 Qe7 d8R Nd7 Rg5 Qf7 Rc5 Qg6 Rg7 Nf8 Rc7 Nd7 Qf3 Qd3 Bb1 Qdf1 Bh7 Qd3 Qe4 Nb6 Bef5 Be6 d7 Bf7 Be6 Bg8 Rdc8 Bf7 d8N Nd7 Rc2 Bg8 Rd2 Bf7 Nb6 Ra7 Rcc2 Ra8 Bef5 Ba2 Be6 Qa5 Qg8 Bd5+ Kd6 Kb5 Qe8 Qa1 R7c3 Ra2 Ra3 Rb2 Rac3 Ka6 R8c7 Bb3+ Kc6 Qa3 Nc4 Ba2 Rf1 Qe3 Rg1 Qd3 Re1
R5bR/3bNq2/r1Q1B3/B5K1/Pqbn1N1r/2k1R1QN/2n2b2/N1q1Q1QN b - - 0 1 illegal: No possible last move
r1RR1B2/n1R2Nqr/K1B2Q1R/4r2P/2QR1B1N/2r4k/b3qQ2/Qn3nb1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 c5 Kc4 e5 d4 g5 f4 a5 b4 a4 h4 g4 f6 a3 d6 Ke6 h6 Kf5 d5 e4 b6 a2 Kb5 g3 f7 c4 b7 e3 h7 g2 d7 e2 d6 Kg4 f5 c3 f6 c2 Nc3 Na6 b8R Ra7 Ne4 Nc5 Nf3 e1N Bf4 g1Q Rc1 a1R Neg5 R7a3 Bg2 Be7 f8B Rd3 f7 Rd5 h5 Qe8 Nh4+ Nf3 Rh3 Bb7 Rc8 Ra8 Qe2 Qf1 Qc4 Nd2 Rd3 Qe2 Rd4 Re5 Bc6 Nb1 d8Q Ne4+ Kb6 Ba6 d7 Ned2 b5 Nf1 Rc7 Bb4 Qf6 Qe7 d8R Bc5+ Ka5 Qd7 b6 Ne7 b7 Nc8 b8Q Na7 Qb2 Bb5 Qba2 Ba4 Rcc8 Bb3 Qa1 Ba2 Ka6 Qe7 Re4 Bg1 Red4 Rg8 h8R Rg7 Rh6 Rh7 Bg7 Qc7 f8Q Qe7 Nf7 Kh3 Rc7 Qd7 Qc5 Qdg4 Bf8 Qg7 Rcd1 c1R Rdc8 Rc2 Rdd8 Rc1 Qf2 Rc3 R1d4
Qr5q/b3r1N1/n3NqBQ/1nRbN1PB/5k2/N6R/1Q1nB1bn/B3B1K1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 h5 e4 f5 b4 c5 d6 Ke6 b6 a4 g6 f4 g5 f3 b5 c4 g7 a3 d5+ Kf7 e6+ Kg6 e5 Kf5 e7 a2 e8N h4 d7 c3 e6 h3 e7 c2 d6 h2 b7 Ra5 b6 Ra4 Bd2 c1Q Na3 Re4 Be2 Rb4 Be1 Qd2 Rc1 a1N Rc5+ Kf4 Qb1 Qa2 Qb2 Nf6 g8B Na6 b8Q Qe6 b7 Rh7 Bf7 Nc2 Ng7 Nd4 e8B Nb5 Bh5 Ng4+ Kf1 f2 Qa8 Qg6 b8B Qgf6 Beg6 Bb7 Nf3 Bd5 Ne5 Be7 Qc6 Qh8 d8Q Bf8 d7 Rb3 Rg1 h1B Rg3 Bd6 Ba7 Bb8 Rh3 Rb4 Bb6 Ba7 Qda8 Bhf3 d8N Bfe4 Nf5 Re7 Ng7 Bh1 Ba5 Rb3 Bac3 Bhe4 Nf3 Nh2+ Kg2 f1N Kg1 Nd2 Ne5 Bg2 Qd6 Rc7 Qf8 Re7 Bd4 Qh7 Qh8 Qg8 Qh6 Qh8 Bc3 Nbc7 Bd4 Rb8 Bc3 Nb5 Bd4 Qf5 Nde6+ Ke4 Qb3 Ng4 Nc7 Nh2 Ba1 Kf4 Qb2 Qf6 Nce6+
3bn2Q/1R2rkQN/7r/3q1Pq1/R1BB3n/B1B4b/RQ3n1b/K1B2bNR b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 c5 b4 h5 g4 a5 d4 e5 Kd2 c4 Kc3 h4 Kb2 h3 f6 a4 g6 h2 d6 e4 f5 e3 b6 e2 g5 e1Q g7 Ra6 d5 Qe4 b7 Nd7 b8Q Rc6 g6 Nc5 b5 Qc7 b6 Qce7 d7+ Kd8 b7 Rh6 f7 Na6 Ra2 a3+ Ka1 c3 Qe5 c2 b8R Qg5 Nc3 Ne7 g8R Rc7 g7 Ng6 Bc4 Nh4 Qdd4 Ra7 Rbb2 Nc7 Rb7 Ne8 Qd2 Bd6 f8B Qf3 Ne4 Qd1 Nf6 Bc7 Rb3 Ba6 Rb7 Qf3 Nh7 Qe4 Bb2 c1N Bd4 Nd3 Qb2 Nf2 Bb4 Qd3 Bbc3 Bd6 Rf8 Bb8 g8Q Qe4 Qc7+ Ke7 Qh8 Qeg2 Rg8 Kf7 d6+ Qd5 Qc5 Bb5 d8B+ Bc7 Be7 Bd8 d7 Ba6 Bb3 Bf1 Bc4 Bh3 Rg6 Bf1 Ra6 Bh3 Qb3 Bf1 Ra4 Bh3 Re2 a2 Qd6 Bf1 Qde5 Bh3 Ba3 Bf1 Kb2 a1B+ Kb1 Bh3 Ra2 Bb2 Qb6 Bc1 Ka1 Bf4 Qb2 Bg3 Ne2 Bf4 Rc1 h1B Ng1 Bh2 Rf1 Bc7 d8B B1g2 Rc1 Bf1 Bf6 Qf4 Bg5 Qg4 Re1 Qh5 Bc1 Qg5 Rb3 Bd8 Rb5 Re7 Rb7 Bc7 Nf3 Bd3 Rh1 Bdf1 Ng1 Bd8 Qeg7+
2br4/nQ5B/1qQr2N1/nP1B4/Q2B1b1K/2RRrBB1/2R1Qq1N/r2n2k1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 Kf2 h5 Kg3 c5 d4 c4 d6 a4 f6 Kg6 d7 a3 d5 e4 f5+ Kh7 b6 a2 b7 c3 b5 c2 f7 e3 g6+ Kh6 g5+ Kg7 d6 e2 Na3 e1N Bg2 Ra4 Rh3 Ra8 Nc4 Na6 b8Q Rh7 f6+ Kh8 Qe2 Nd3 Bf4 c1Q Bf3 Qc2 Rc1 a1R Ne5 Rh6 g7+ Kh7 Ng6 Nac5 Qb7 Nf2 Kh4 Nb3 Bg3 Qb6 d8B Na5 d7 Bd6 f8Q Nd1 f7 Bf4 Bf6 Ne7 d8R Nec6 Qb4 Na7 f8Q Qcc5 Rd3 Qf2 Qfe8 Ra3 Rd4 Re3 Rd3 Rb8 Bd4 Ra8 Ne7 Rd6 g6+ Kh6 g8B Rb8 g7 Ra8 Nd5 Rb8 Qed7 Kg6 Qdc6 Kf5 Qa4 Ra8 Bg4+ Ke4 Nf3 Rb8 Rh2 Ra8 Rcc3 Rb8 Kh3 h4 B8e6 Ra8 g8B Rb8 Bh5 Ra8 Kg4 h3 Kh4 Rb8 Rg2 h2 Bef7 h1R+ Nh2 Nb2 Be6 Ra1 Bef7 Nd1 Bh7+ Bf5 Bfg8 Rbd8 Ne7+ Rd5 Ng6 Bc8 Qea2 Rd6 Ng4 Kf3 Q2c4 Qg1 Rgc2 Qf2 Nh2+ Kg2 Bf3+ Kg1 Bf7 Rd8 Bfg8 R5d6 Qe6 Ra2 Qe5 Ra1 Bgd5 Re2 Qe3 Re1 Qd2 Re3 Qe2
Knr2r2/2B1B3/6q1/NPb2N2/1Q1RN1r1/b1N2n1Q/2Bqb1k1/1RNbR2R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 a5 d4 c5 f4 h5 b4 e5 g4 a4 b6 a3 f6 h4 g6 c4 f5 h3 f7 c3 b7 a2 g5 c2 g7 h2 f6 Qe8 g6 Bh3 Ne2 Be7 f8Q Bg4 f7 Qb5 Qd3 Bh5 Bf4 c1Q Nbc3 Qc5 Qh3 Qb2 Nc1 Qc8 Bd3 Be2 Bc2 Na6 b8R Nh6 g8N Qc4 g7 Ng4 Nh6 Qc6 g8N Qb6 Rb7 Rc8 Nf6 Nb8 b5 Qb4 Rb1 a1B Ra7 Bb2 Raa1 Ba3 Nf5+ Kc7 Bg3 Bc5 Bf4 Qa6 d6+ Kb6 Kd5 e4 d7 e3 d8R Ne5 Nfe4 Nf3 Re1 h1B Qe7 Rh4 f8B Rg4 Qeh4 Bd1 Be7 e2 Bg3 Bg2 Rh1 e1R Bc7+ Ka7 Rd7 Qg6 Rd6 Rf1 Qe1 Nd7 Kc6 Rf2 d5 Bf1 Qd2 Bfe2 Qd4 Qb2 Qb4 Qa2 Rf6 Qb2 d6 Qa2 Rf8 Qb2 Rd8 Nb8+ Kd5 Kb7 d7 Rf1 Re8 Rf2 d8N+ Ka7 Nc6+ Kb7 Bd3 Qd2 Rd8 Rf1 Na5+ Ka7 Kc4 Rf2 Rd4 Rf1 Bh2 Kb6 Kd5 Rf2 Ned6 Kc7 Nde4+ Kd7 Bc7 Rf1 Kc4+ Ke6 Ne3 Qa2+ Ncb3 Ng1 Ng3 Rf2 Rc1 Bc2 Rab1 Rf6 Nef5 Rff8 Re1 Qb2 Nc1 Bd1 Bed6 Kf6 Kd5 Qd2 Bc2 Kg5 Be7+ Qf6 Bcd8 Nf3 Nge4+ Kf4 Bc7+ Ne5 Qh8 Kf3 Qh4 Kg2 Qh5 Nbd7 Qh8 Qg7 Qh6 Nf3 Kc6 Qgg5 Kb7 Nb8 Ka8 Qg6 Qh3#
QQ1nRq1B/1nQ1b3/nN3RN1/PB2B2R/1n1r3Q/5K1b/Rkb1Q2r/q7 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 h4 Kd6 f4 Kc5 a4 Kc4 d4 b5 h6 c5 a6 e5 h7 g5 a7 b4 d6 g4 h5 g3 h6 g2 d7 b3 f6 e4 f5 e3 d5 b2 f7 Nc6 d6 Qe8 d8R Qe7 a5 Nb8 f6 Bh3 d7 Na6 Nf3 g1Q Nbd2+ Kc3 Ra2 b1B Ne5 c4 Ng6 Bc2 Re8 Rd8 Kf3 e2 a8Q Qec5 Ba3 Be7 f8R Qb4 f7 e1N+ Kf4 Qb8+ Bd6 Nd3+ Kf3 Ndc5 Qe2 Nb7 Be5+ Qd4 Nb3 Qc8 Nc5 Qb8 Na4+ Kb3 Bg3 Qa1 Nb6 c3 Be5 Qd6 Ra3+ Kb2 Ra4 Rc8 d8Q Rc4 Qc7 Rd4 Rh2 Nd8 Qab8 Nf6 Ra3 Nd7 Ra2+ Kb1 Qa8 Ndc5 Rh1 Ncb7 Rh2 Rg8 h8Q Qa3 Qf6 Rh8 h7 Qd6 Qh4 Qb4 Rg8 Kc1 f8Q Qd6 Ra3 Kb2 Qff4 Qf6 Rgf8 Qg7 Rf6 Qf8 Qcb8 Rg8 Nh8 Rg2 Rh1 Rh2 Ng6 Rd7 h8B Rd4 Qd3 Bd1+ Be2 c2 Qc4 c1N Ra2+ Kb1 Qcc7 Nd3 Qe3 Ndb4 Qd2 Bf1 Qd3+ Bc2 Qde4 Kc1 Bb5 Kb1 Qe2 Kc1 Rg1 Kb1 Rg5 Bh3 Rh5 Kc1 Ra3 Kb2 Ra2+
1rNQQbQr/8/qPB1b3/1n1R1rr1/1Q1qNqn1/5R2/3B1R2/k1BB1BK1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 g4 Kc5 d4+ Kb4 d6 e5 f6 c5 f7 h5 d7 a5 d5 a4 g6 a3 f5 e4 f6 a2 g7 h4 g5 h3 d6 h2 g6 c4 b6 c3 b7 c2 Nc3 Kb3 Qh5 Nh6 g8B Be7 f8Q+ Nf7 g7 Ra5 Nf3 Na6 b8B Nc7 Nd5 Nh6 f7 Qe8 d8Q Ra7 d7 Ba3 Ne7 Ra5 Ng5 Bb7 Nc8 Nb5 Bbf4 Qe5 Bfd2 Bd5 Qde8 Bb4 d8Q Be6 Qg4 e3+ Kg2 e2 Ne4 e1Q Qfd6 Bc5 f8R Qd1 Rf2 Qf4 Bf7 Ra8 g8B Rb8 Bh5 Bb4 Rb1 a1Q Rg1 Ba3 Qb4+ Ka2 Kh1 Qe2 Rg3 Qc4 b3 Qad4 Rgf3 Qcd3 Kg2 h1R Qg7 Rh2+ Kg1 Ng4 Bh7 Rf8 Qg8 Rf5 Rb2+ Ka1 B7g6 Bd7 Bf7 Rg5 Bd5 Be6 Bc6 Rh4 Qbf8 Bd6 b4 Qa3 Rbb3 Qa6 Rbc3 Rf5 Rc5 Be7 Rd5 Bc5 Ba3 c1R Qfd6 Rc3 Bac1 Ra3 Q6e7 Ra5 Qb7 Bf8 Qbe7 Nc3 b5 Rh3 b6 Nb5 Qb4 Rg5 Bg6 Rh8 Bh5 Nc3 Rd6 Raf5 Rd5 Nb5 Rg3 Nh2 Bd1 Ng4 Rf3
3b4/rR1R2N1/1PNR4/b1q1Q1R1/2NB4/Qn1b1B1K/BqR1Nr2/1q1b1n1k b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 Kf2 h5 Kg3 c5 d4 c4 d6 a4 f6 Kg6 d7 a3 d5 e4 f5+ Kh7 b6 a2 b7 c3 b5 c2 f7 h4+ Kh3 e3 g6+ Kh6 g7 Kg5 b6 Kf4 f6 Rh5 g5 Bc5 f8N Qe7 f7 Ra4 g6 Nh6 g8R Nf5 d8R Nc6 b8R Ra7 g7 Na5 d6 Nb3 d7 Ba6 Rb7 Bd3 Qe1 Ng3 Rh2 Rf5 Nd2 e2 Bg2 Nf1 Bb2 c1Q Bd4 Qb2 Rd1 a1Q Bf3 Qab1 Nc4 Bb4 Qc3 e1B Rc2 Qc5 Rdd2 Ba5 Ne2+ Kg5 Rd1 Bg3 Qe1 Bc7 Rdd2 Rf6 Ne6+ Kf5 f8Q Rf7 Rc8 Bd8 Rc6 Rf6 Rd6 Rf7 Bh5 Ke4 Qg3 Rf2 Qe8 Bg5 d8N Bf6 Nc6 Bd8 Kg4 h3 Rd1 h2 Kh3 h1B Bf3+ Kf5 Rdd7 Qf8 Qd6 Qe7 Qa3 Qc5 Bh5 Bhe4 Bf3 Bd5 Rh8 B5e4 g8B Bd5 Ng7+ Kg5 Ng3 Kf4 Rh5 Bf7 Rg5 Bh5 Be4 Bf3 Rdd2 Bd1 Bed5 Be4 Qe5+ Kf3 Ne2 Ng3 Kh4 Kg2 Bge6 Kh1 Kh3 Nf1 Bg4 Rg2 Bf3 Bd3 Nd6 Bc4 Bc3 Nd4 Bg8 Ba6 Ba2 Nb3 Rd5 Bd3 Bd4 Na1 Nc4 Nb3 Bg4 Rf2 R5d6 Bh7 Bh5 Bd3 Bf3+
q2RRn2/1BBN3P/R4K2/q3B3/1QrBRQ2/7N/QqB1n3/bb1rr1rk b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 c5 Ke4 g5 Kf5 a5 b4 g4 h4 c4 e4 g3 d4 a4 h6 c3 h5 g2 e6+ Kd6 e5+ Kc7 b6+ Kb7 d6 Kc6 d5+ Kb7 h7 c2 d7 a3 d6 Kc6 b7 a2 b5+ Kc5 e7 f6 e8B Bh6 b6 Qc7 e6 Kc6 d8B+ Nd7 b8Q Bg7 e7 Ra4 h6 Rc4 Be3 c1Q b7 Qb2 Bd3 Kd5 Qb3 Qa5 Bc2 Nf8+ d7 Qa8 Nh3 g1R Na3 Re1 Rc1 a1Q Qf4 Rg1 b8Q Bb7 Nb1 Q1a5 Na3 Rd1 Bc7 Re1 Kg4 f5+ Kg5 Nf6 Bd4 Rg8 h8B Nh5 h7 Ng3 Qa2 Ne2 Ra1 Bc6 d8R+ Bd7 Qg3 f4 Qb4 f3 Qf4 f2 Bde5 Rd1 Re1 f1R Bd4 Be5+ Beg6 Rg7 e8R Re7 Bgf5 Bg7 Bg4 Re4 Bf3 Rg1+ Bg2 Be5 Bc5 Bc3 Bhe5 Bd4 Kf6 Bc3 B5d6 Bf5 Bd4 Bg6 Nb1 Bf5 Nd2 Bg6 Nf3 Re3 Ba4 Bb1 Ne5+ Re4 Bf1 Re3 Nd7 Re4 B6e5 Re3 Qh6 Ke4 Bc2+ Kf3 Qg5 Nc1 Bfd3 Ne2 Qf4+ Kg2 Bf5 Kh1 Bfe4+ Rf3 Rf1 Re1 Bb7 Rd1 Rf2 Rge1 Rg2 Rg3 Rf2+ Rg2 Rf3 Rgg1 Re3+ Qd5 Re4 Qda5 Qaa4 Qc1 Ra3 Ba1 Qab3 Qb2 Qa2 Qb5 Ra7 Qa5 Ra6
r4bBq/2B2nP1/3n2KR/2RN3n/N2qrr2/Q2Nnb1R/R7/RQ1Q1k1N b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 e5 Ke4 c5 b4 h5 g4 a5 f4 a4 d4 c4 b6 a3 d6 h4 g6+ Kf6 g5+ Kg7 b5 a2 b7 h3 d7 h2 d5 c3 d6 c2 b6 Ne7 f6+ Kg8 g7 Kf7 g8N Kg6 f7 Qe8 d8N Nec6 d7 Qe7 f5+ Kg7 g6 Ra5 Nh6 Kf6 g7 Rb5 Bc4 Rd5 Ne6 Na7 d8R Nbc6 b8R Qd7 b7 Nb5 Nf4 Kg5 f6 Kh4 Nc3 Kg3 Ra8 Kf2 b8Q Bb7 Rc8 Nd8 Na4 Qh3 Ba3 c1Q Nf3 Qd2 Nf5 Qh6 Ng3 Rd4+ Kf5 e4 Bb2 e3 Nd5 e2 Rc5 e1R Ra7 Rh4 Be5 Ree4 Bc7 Qd4 Ne1 Rg8 Ra6 Qh8 Kg6 Nd6 Ra7 Bc6 Qbb1 Rhf4 Ra6 Bb5 Bb3 Be2 Rac6 Bf3 Bc4 Be7 f8R N8f7 Rb8 Rc8 Rb3 Ra8 Ra3 Ng5 f7 Bf8 Rg1 h1N Re3 Be7 f8Q Ngf7 Bb3 Ra7 Qa8 Ra5 Qa6 Bf8 Qad3 Ra8 Bc4 Ree8 Qa3 Ree4 Ndb6 Nh6 Kg5 Nb7 Bg8 Bg2 Kh5 Nf7+ Rh6 Nbd6 Kg6 Bf3 Nh5 Ng3 Rg2+ Kf1 Rb2 Ne2 Rec3 Bg4 Rh3 Bf3 Ng3+ Kg1 Nh1 Ng3 Qbc2 Kf1 Rc1 a1N Nd5 Nh5 Ra2 Ra5 Qcb3 Nc2 Rca1 Ne3 Qbb1 Ra8 Nd3+
1Q1q1R2/1qQ1P1B1/k2nbRNK/3B1bN1/rbQ5/5n2/b3qrNQ/2QR2N1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kf4 c5 b4 Kc7 g4 Kb7 d4 f5 e4 h5 d6 h4 d5 a4 d7 h3 e6 h2 e5 a3 g6 a2 b6 c4 g5 c3 e7 c2 e8R Na6 g7 Qc7 d8N+ Kb8 g6 Nc5 Kg5 f4 b5 f3 d6 f2 b7 Ka7 e6 Na6 d7 Rh3 Bc4 f1B Nd2 Nb8 Ndf3 Qb6 Bd5 Bd6 Nf7 Rh7 d8Q Bh3 Rf8 Ne7 g8N Nf5 g7 Nd7 Ne7 Ne5 g8Q Bb4 Qc7 Nd6 Bb2 Bf5 Nh4 c1Q+ Qd2 Bd7 Ng2 Qd1 Qdc1 Qe2 Ng6 Rh4 e7 Rf4 Kh6 Rf2 Ng5 Nf3 Bh8 Bde6 Bg7 Qa5 b6+ Ka6 Rb1 a1Q b8Q Qab2 b7 Qb6 Rf6 Qbd2 Qgc8 Qdd3 Rb2 Qdb5 Q7c4 Qd8 Rd2 Ra7 Rd1 Ra8 Qbc7 Ra7 Qh4 Qb6 b8Q+ Qb7 N1h3 Ra8 Rhf1 h1B Ng1 Ra7 Ne1 Bg2 Qh2 Bgh3 Rf8 Bb1 Ng2 Ba2 Rd4 Bhf5 Rfd1 Kb5 Rf4 Ra4 Rf6 Ka6 Rf8 Bh3 R4f6 Bef5 Qe6 Bhg4 Qe4 Be6 Qef4 Bgf5 Qfc4+
3Q3b/K2NP2Q/nR6/1Bq2r2/1N1Nn2Q/k3q2B/1b1rbQ2/b1Qq1RBB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kd4 h5 e4 f5 b4 c6 g4 h4 d6 f4 Kc5 f3 d4 h3 d5 a4 b6 a3 g6 f2 b5 h2 e6+ Ke8 e5 a2 b7 Qe7 Kb6 c5 d7+ Kd8 g7 c4 g5 c3 g6 c2 Be3 c1B Ne2 Qg5 Nd4 Ke7 Na3 Qh4 Bh3 f1Q Bg1 Rh5 Rb1 a1B Nac2 Rh8 Nb4 Bh6 Qc1 Nf6 g8Q Ne8 g7 Ra4 Qh7 Qf5 g8B+ Bhg7 Rb3 Na6 b8Q Nd6 Ka7 Qfh5 b6 Qe4 b7 Qe3 Qa8 Bb2 b8N Ra5 Qac6 Qd1 Q6c2 Ne4 Qf2 Qh5 Bf7 Bf6 Be8+ B8g7 Bg6 Rd8 d6+ Kf8 Bgf5 Bh8 Bfg4 Bb7 Bf3 Bd5 Bfg2 Bc4 Bf3 Bfg7 e7+ Kf7 e8B+ Kf8 e6 Be2 N4c6 Rf5 Rb6 Ba1 Nb4 Qhg5 Nb5 Bgb2 Bfg2 Qc5 Nd4 Qe3 Bf3 Rc8 d8Q Rc6 d7 Rd6 Ndc6 Rd2 Nd4 Qd3 Qc7 Qe3 Qh6+ Ke7 Qh7+ Kf6 Qd8+ Ke5 e7 Ng3 Bc6 Kd6 Qc8 Ne4 d8Q+ Ke5 Nd7+ Kd6 Qfh4 Bc4 Bf2 Be2 Rf1 h1Q Bg1 Qhf3 Qce1 Qg4 Qef2 Qh5 Nbc2 Qg4 Bb5+ Kd5 Bc6+ Kc4 Nb4 Kc3 Ndc2 Kb3 Nd4+ Ka3 Bb7 Qa5 Qc1 Qc5 Ba8 Qg8 Bc6 Qgb3 Bb5 Qbd3 Bf7 Qb3 Bd5 Qd1 Bdc6 Nd6 Bf3 Ne4 Bh1
N4NB1/n1P1qb1K/1Qq1Nrn1/8/r3Rbrk/Q2q4/3RR1QQ/4qNBQ b - - 0 1 illegal: No possible last move
1Q1q4/1P2rqBb/2B2N2/1Nq2R2/Q2k1rQ1/4N1R1/Q1RqR1Kb/r1n1Q1n1 b - - 0 1 illegal: No possible last move
b2r1N2/1PN2N1B/K2nN1b1/1Qr1q2k/3R1B2/b1b1rqR1/QQ5n/1QQ2R2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 h5 d4 a5 b4 e5 f4 e4 g4 h4 f6 Kg6 d6 e3 f5+ Kf7 d5 e2 g6+ Ke8 b6 e1Q Kb5 h3 g5 h2 g7 Kf7 g6+ Ke8 b7 a4 f7+ Kd7 f6 c4 Na3 c3 Bf4 c2 Qc1 Na6 b8Q Nh6 g8R Bb7 g7 Be7 f8N+ Ke8 d7+ Kf7 d6 Qd1 Bd3 Ra7 Nh3 Nf5 Ne6 Kg6 f7 Qc7 d8Q Nc5 f8N+ Kh5 d7 Qe5 Rf1 h1B Qb6 Nh6 d8Q Bhe4 Nhg5 Ng4 Qe8+ Bg6 Nf7 Ba8 Be4 Rc7 Ka5 Rc8 b5 Nb7+ Ka6 Qf3 Qf2 Bf6 b6 Nd6 Nb5 a3 Nbc7 a2 Qb5 Nh2 Rb1 a1B Rb4 Be7 Rd4 Rd8 Qbb1 Bc3 b7 Rd7 Qe8 Rd8 Qeb5 Rh7 Qfd2 Rh6 Qcb2 c1R Bd3 Re1 Qdc1 Re3 Nh8 Be8 Bh7 Rg6 Nf7 Rg5 Nh8 Bg6 Nf7 Qee4 Rh8 Rc5 g8Q Bf5 Qgg2 Qe5 Rg8 Be4 Rg3 Bg6 Qgd2 Ne8 Rg2 Rc4 Q2b3 Ba3 Qda2 Rc5 Q3b2 Nd6 Rg3
br1b3B/B2K3Q/2Rn1B2/Nq2N2b/bRP1NrB1/2n2RN1/3b2B1/kb5Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 b4 a5 c4 d6 g4 h4 c6 a4 g6 a3 b6 h3 b7 h2 g7 f6 c7 a2 b5 Qd7 g5 Qe7 b6 Rh3 g6 Ra5 Bb2 Rh6 Bg2 Ra4 Nd2 Bd7 c8R Qe8 Nb3 Ne7 g8N Rb4 g7 Na6 b8B Nd5 b7 Ba4 Ne7 Qb5 Nf5 Nac7 Ba7 Ne8 b8B Be7 Nf3 Bd8 Rb1 a1B Rf1 h1B Ng3 f5+ Kd4 f4 e4 Rh4 Rc6 Nc3 Na5 Rb3 g8N Rg4 Nf6 Rh4 Rc7 d5 Rc6+ Nd6 Qc2 Qa6 Kc5 d4 Qd1 d3 Bc7 Be7 Bd8 d2 Qe1 d1B Rf2 Kf7 e6+ Kg7 e5 Rb8 Nfe4 Qb5+ Kd4 Bf6 e7 Kf7 e8B+ Ke6 Bh5 Bdc2 Nh2 f3 Ng4 Bd1 Rf1 f2 Be7 Bg5 Bf6 Bd2 Bh8 Qb7 Kc5 Bdc2 Rg1 f1B Bf6 Bfd3 Rf1 Be2 Rf3 Qd7 Ba3 Qe8 Rb4 Bb1 Bb2 Bed1 Nh2 Rf4 Ng4 Rc8 Kb6 Rb8+ Kc7 Be2 Nf1 Kf5 e6 Bed1 e7 Be2 Ra6 Qb5 e8Q Bed1 Qg8 Be2 Bh8 Bed1 Ngf6 Ke5 Qh7 Be2 Rb6 Kd4 Bg4 Bed1 Nfg3 Be2 Rf1 Kd3 Nd7 Kc2 Rc6 Bd1 Be6 Bf3 Ne5 Bh5 Bc1 Bb2 Rf3 Ba1 Bg4 Bb2 Rb3 Ba3 Qf1 Bc5 Ba3 Bb6+ Kd7 Bd8 Qg1 Rc8 B3c5 Rb8 Qh2 Kc1 Rb4 Kc2 Bd4 Kc1 Nb3+ Kb2 Na5+ Ka1 Nf7 Bd1 Bdf6 Ba4 Ne5 Bd1 Bf1 Bdc2 Rd3 Ka2 Ng5 Bf3 Qh1 Be2 Bg2 Bf3 Re3 Bd5 N5e4 Ba4 Rd3 Ka1 Rf3 Qb6 Rb5 Qa6 Rcc5 Ba8 Rc6 Qb6 Rb2 Qb5 Rb4
2qnbN1r/1nN1B1b1/1bn1R1Qn/1B5k/N1b5/P1Q4N/1B3B2/r2RKB1R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kf7 h4 b5 f4 g5 f6 c5 h6 Kg6 h5+ Kf5 d6 e5 d7 c4 d5 b4 a3 c3 a6 e4 f7 c2 d6 b3 a7 g4 h7 g3 h6 Kg6 Qd3 b2 Nh3 g2 f5+ Kh5 f6 g1B Be3 c1N Nc3 b1B Na4 Nb3 Bf2 Bg7 f8R e3 f7 e2 Re8 Na5 f8N Nac6 Re6 Ba2 Rd1 Bc4 Qe4 Qc7 d8B Bd7 Be7 Be8 d7 Nd8 Qc6 Qc8 Qg2 Nb7 d8N Nc6 Qe4 Rb8 a8B Nd6 Bb7 Nf7 Ba6 Rb1 Bb5 Rc1 Rf6 Rb1 Nde6 Nfd8 Nc7 Rc1 Re6 Ra1 Kd2 e1N Qd3 Ng2 Qg3 Ne3 Ke1 Nf5 Qc3 Nf6 Qd3 Nd7 Qd6 Rg8 h8Q Nc5 h7 Nh6 Qd3 Ncb7 Qc3 Bd4 Qg7 Rh8 Qgg3 Bb6 Qg2 Bh2 Qg8 Be5 Qgg3 Rg8 h8B Bg7 Qcd3 Be5 Bhf6 Rh8 Qge3 Bf4 Bb2 Be5 Qg3 Bed4 Qc3 Bg7 Qg6+
nk2N1R1/n2QB3/1qBb2b1/3r2BN/1P2n1Q1/6R1/nNr1Q1BB/b2QK1b1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 Kc7 d4 a5 d6+ Kb7 b6 h5 d5 e5 d7 e4 d6 c4 f6 c3 f7 c2 g6 h4 g5 e3 g7 e2 g6 h3 f5 h2 f6 a4 Ra3 Nc6 Bg5 c1B Bg2 Kb8 b7 Nge7 g8N Ka7 b8B+ Kb7 g7 Qa5 d8B Qa7 d7 Qb6 Nd2 Rh5 Nh3 Nd5 Rg3 a3 Nc4 a2 Nf4 a1B Be7 Be3 d8Q Ra2 Qd7+ Nc7 Rg1 h1N Nb2 Nf2 Qg4 Na8 Be5 Rh1 Nh5 Ne4 Rh3 Ra7 Bgf4 Rh2 Bh1 Bd4 Bd8 Bd7 Qf3 Nc5 Kd2 Be7 f8Q Qa5 f7 Bc8 Qe8 Be6 f8Q Qc7 Qf5 Qb6 Ngf6 Bf7 g8B Bd6 Be7 Ra5 Qed7+ Kb8 Ne8 e1N+ Qf2 Na7 Bc6 Rb5 Rg5 Rg2 Qfg4 Ned3 Ke2 Nc1+ Ke1 Na2 B5f6 Qc7 Bh2 Qb6 Rg3 Be3 Rg7 Bg6 Bg5 Bd4 Qf1 Rc2 Bgd5 Bg1 Bg2 Ne4 Qfe2 Rd5 Rg8
3r1Q2/kqR1nnR1/R4bN1/QQ2NPb1/bR3Br1/2N3Q1/5n2/QKn2Bb1 b - - 0 1 illegal: No possible last move, all moves rejected
k5b1/8/RKQ1q1r1/N1P1r1nQ/NR3B1Q/2R2b2/nRb2nBn/b1R2QN1 b - - 0 1 illegal: No possible last move
2n1Q3/1b1R1b2/3P1nq1/1b1BR1N1/k2rRQ1K/Rn1r3n/1bRN3Q/B2BQ3 b - - 0 1 illegal: No possible last move, all moves rejected
3Bqr2/2R2BQN/R1n4k/1K1NbnNb/1QpBP1r1/1RbB3n/1r6/B6R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 g5 b4 f5 d4 Kf7 Kd2 Kg7 Kd3 a5 Kc4 c5 e4 g4 h6+ Kh7 e6 g3 h5 f4 b6 a4 b7 f3 d6 a3 e7 g2 e8B f2 d5 a2 b5 Qd7 b6 Ra7 Qe1 Nc6 b8N Nf6 b7 Ng8 Nf3 g1N Be3 Ra8 Bd3 f1R Nc3 Qg4 d7 Qf5 d8R Qg5 d6 Qg6 d7 Qg7 Bd4 Ra7 Kb5 c4 Bf7 Qe5+ Nd5 Qg3 Qb4 Qg6 Re8 Bg7 d8B Rf2 Nd7 Nh3 b8R Ra3 Re7 Be5 Rb6 Rd2 Rab1 a1B Ra6 Bc3 Rb2 Rg2 Rb3 Be1 Ba1 Rg4 Bd4 Ra2 Ba1 Nf6 Bd4 Rf8 Ng5+ Kh8 h7 Kg7 h8B+ Kh6 Ba1 Ne8 N7f6 Ng7 Rc7 B1c3 Nfh7 Nf5 Bhf6 Rb2 Bh8 Bg3 Bd4 Be5 Bg8 Qe8 Bf7 Kg7 h6+ Kh8 Nhf6 Bd7 h7 Kg7 Be6 Kg6 h8Q Bc8 Nfh7 Kh6 Bf7 Be6 Bg8 Bf7 Qf6+ Bg6 Qfe7 Bh5 Bf7 Bg3 Qe5 Bh2 Qh8 Be5 Qg7+
2NBBrB1/3Kbr2/n3nNN1/1P1Q2R1/1bp1R1b1/8/qN3k1Q/1r2nBNQ b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 g4 a5 f4 a4 b4+ Kb6 d4 c5 f6 a3 f7 e6 f5 h4 f6 a2 g6 c4 g5 h3 d6 h2 g7 Na6 g6 Qc7 d5 Ra7 Nc3 Qc6 d7 Nc5 d8Q+ Qc7+ d6 Rh6 Bg5 Rh4 Na4+ Kb7 b6 Kc6 b7 Qb8 Nb2 Na4 b5+ Kc5 Rc1 Qa8 b8Q a1N d7 Ne7 g8B Nd5 g7 Be7 f8N Nc7 f7 Rh8 Ng6 Nc2 f8N Ne1 Bf7 Na6 Nh7 Rf8 g8B Rb7 Nf6 Rc7 Kf4 e5+ Kf5 e4 Ke6 e3 Be8 e2 Rc3 Rb7 Re3 Ra7 Qb1 Kd4 Rg3 Qg2 Bh4 Qa8 Rg5 Ke3 Qd6 Rc7 Qd5 Rb7 Qc7 N4c5+ Ke5 Ra7 d8N Bh3 Nf7 Ne6 Nd6 Bf5 Nc8 Bg4 Qdd1 Rb7 Kd5 Qa7 Kc6 Qa8 Kd7 Ra7 Nh3 Qg2 Rg1 h1R Qd5 Qh2 Rg2 Rb7 Ng1 Ra7 Rg3+ Kf2 Rh3+ Qg3 Qbe4 Nb4 Bg2 Bd6 Rf5+ Nf4 Na4 Nf3 Nh5 e1B Ne2 Na6 Kd8 Rf1 Ng1 Beb4 Qh7 Rc1 Bf1 Ne1 Qh1 Rb1 Be7 Qh2 Rg5 Qg2 Nf6 Qe4 Re3 Qc2 Re4 Qa2 Nb2 Bdc5 Bd6 Raf7 Be7 Ne6+ Kd7 Bd6 Q7h2+ Ng2 Kc6 Bdc5 Bd8 Be7 Qh6 Ne1 Kd7 Bf3 Qh7 Bg4 Q7h2+
RBR3b1/5bb1/3nknNP/1R6/B5n1/2KQ1N2/rQQQp3/1BBB1rqr b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 h4 d5 c4 e5 f4 a5 b4 g5 h6 d4 h7 g4 b6 e4 c6 a4 h5 a3 c7 d3 b5 g3 c5 a2 b7 e3+ Kc3 g2 b6 d2 f6 Na6 b8Q Qd6 b7 Bh3 c8B Bf5 h6 Be7 c6 Bf8 c7 Be7 Ne2 g1R Qc2 d1B Nd2 Qd5 Bd7 Bh3 c8B Rg5 f5 Nc7 Nf3 Rg4 Ba4 Rg1 Nf4 Ne8 Ng6 Bf8 Qbh2 Bg7 b8B Nd6 Bd3 Bf1 Rb1 a1N Qhd2 e2 Rb5 Bh3 Bd7 Bg4 Rh4 Bh5 Rc4 Rh1 Rc8 Qb7 Be4 Qb6 Qcd3 Bc2 Bdc6 Bb1 Bd1 Qg1 Bd7 Ba2 Bdc6 Ne7 Q2c2 Rf8 h8Q Bd5 Qdd2 Ra2 Qh7 Qe1 Qb2 Ng8 Bb1 Nc2 Ngh4 Qf2 Rb4 Nb7 Ng1 Rh2 Ba4 Ne3 Qdc2 Bc4 Rb6 Re8 Rb5 Kf8 Qg6 Rh3 Qg3 Kf7 Qd6 Rh1 Qdd3 Bf3 Ng6 Ng4 Qd8 Bb3 Qdd2 Bfd5 Qdd3 Nd8 Qdd2 Re4 Qdd3 Rf4 Qdd2 Qe3+ Qdd3 Rf1 Nf3 Qb6 Qdd2 Ke8 Qdd3 Kd7 Qdd2 Qg1 Qdd3 Bf8 f7 Nb7 Qdd2 Bg7+ f6 Ra1 f8Q Ra3 Kd3 Ra2 f7 N8f6 Qfc5 Nd6 Qce3 Bdc4+ Kc3 Be6 Qed3 Bbd5 Ba7 Bc4 Ra8 Bcd5 f8R Bg8 Bb8 Bdf7 Rd8+ Ke6 Rc8
3b1NQ1/Qb6/1Q3pbk/5nR1/1BBB1RnN/n2K2P1/R1R1R2Q/1rr1q2r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 e4 c5 Ke2 h5 b4 a5 d4 h4 g3 f6 g6 h3 e6 c4 d6 a4 b6 a3 b5 c3 e7 h2 g7 Kf7 e8R Kg6 b7 a2 e5 c2 d5 Qe7 b6 Rh6 d7 Kh7 d8B Rg6 e6 Qd7 d6 Ra7 e7 Ra6 Kd3 Qc6 d7 Qc7 Qh5+ Rh6 Ba3 c1R Ne2 Re1 Bb4 Qc6 Nf4 Qe6 Ng6 Re2 Nd2 Qf7 Nf3 Nc6 b8Q Rb2 b7 Nd4 Qa7 Nf5 b8Q Rb1 Nfh4 Rc6 Bb6 Rcc1 d8R Bb7 Bd4 Qe6 Rd5 Qe1 Qe2 Rh5 Rc8 Ngh6 e8R Be7 Rc2 Ng4 g8Q+ Kh6 Nf8 Bd8 Rg1 h1B Qh2 Bf3 Ree2 Bh1 Ra5 Bhd5 Rgg2 Bf7 Rgf2 Bg6 Rf4 Rb2 Rb1 a1N Ra2 Rb3+ Bbc3 Rb5 Bb4 Rb6 Rbb2 Rb5 Rc5 Nc2 Qd6 Na3 Qdb6 Bc7 Rbc2 Bd8 Ba5 Rbb1 Bb4 Nb5 Bg2 Na3 Bd5 Qf2 Bc4 Qe1 Rd5 Nfe3+ Nf5+ Kg5 Qg2 Rh1 Qh2 Nf1 Rfe4 Nfe3 Nh4+ Kh6 Rg5 Nf5 Rf4
2N1K2Q/2R2N2/nPr3B1/5b1R/Bn5B/Qr1N1p1B/kNq1Nbbr/3Q1n2 b - - 0 1 illegal: No possible last move
n1N1bN1B/K2Pb3/N1q2NQR/1rn1n3/1R3p1b/1N3R1R/2QBr3/3Bk1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 a5 Kd4 f5 Kc5 g5 d4 a4 e4 f4 b4 c6 h4 g4 e6 Kf6+ d6 g3 b6 g2 b7 a3 h6 a2 b5 Qc7 d5 Ke5 b6 Bd7 e7 Ra6 e8Q+ Ne7 h7 Ra4 h5 Rb4 h6 Bg7 Nd2 Bf6 Nh3 g1R Ng5 Bf5 d7 Bg4 d8N Bc8 d6 Rg2 d7 Re2 Nge6 Rb2 Nf8 Bh4 Rh3 Rg8 h8R Rg1 Qg6 Nd5 h7 Rb1 Qc2 Na6+ Kc4 c5 b8N Qd6 b7 Rb5 Nb3 Qc6 Bd2 Ndc7 Bg2 Be7 Bf3 Na8 Rf1 a1B Bh5 Bd4 Rff3 Bf2 Bg4 Bfh4 Bh5 N6c7 Na6 Ne6 b8R Bb7 Bg4 Qd6 Bh5 Bc6 Nb7 Bd5+ Kc3 Qc7 Nd6 c4 Nc8 Nc5 Rb6 Qc6 Rb7 Ra5 Kb4 c3 Rb5 Bf7 Bg4 Be8 Kc4 Ra2 Rb4 Qd5+ Kb5 Rb2 Rg8 Qd6 h8B+ Qf6 Rg7 Qd6 Rh7+ Qf6 Qc1 c2 Rh6 Rb1 Qd1 c1N Qc2 N1d3 Bh5 Ne6 Kc6 Rb2 Kb7 Nec5+ Ka7 Rbb1 Na5 Rb3 Rb5 Kd4 e5 Rbb1 e6 Ne5 Rb7 Rb5 Rb8 Bd8 e7 Qc6 Bg4 Bf7 e8N Bde7 Nf6 Be8 Bh5 Rf2 Qb1 Re2 Nb3+ Kc4 Be3 Kc3 Qbf5 Ra5 Rb4 Rb5 Bd2+ Kb2 Rd3 Kc2 Rdf3+ Kd1 Qe4 Rh2 Qc2+ Ke2 Rd3+ Kf1 Bd1 Re2 Bc1 Kf2 Rdf3+ Ke1 Bd2+
Bk1KbRq1/1PnQ1N2/1nr2R1N/2pb1BB1/6NB/Brb1N3/1R6/1r3nQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 h5 Kf4 a5 Ke5 e6 g4 h4 d4 c6 b4 Kc7 f4 a4 f6 a3 g6 a2 f5 h3 f7 h2 g7 Ba6 g5 Bc5 f8B Kc8 d6 Kb7 b6 Rh3 f6 Rh8 g6 Qc8 b5 Qe8 d5 Rh4 d7 Ba3 d8Q Rf4 d6 Rg4 d7 Rc4 f7 Rh4 Bg5 Ne7 Kf6 e5 g8B e4 g7 e3 Bg2 e2 Bh7 e1R g8N Rf1+ Bf5 Bc1 Nh3 Rff4 Qg1 Rfg4 Na3 Nc8 Nc2 Rb4 Rb1 a1N Nh6 Nb3 Ne3 Rhc4 Nf2 Nd2 Nfg4 Nf1 Rb2 Rb3 Ba3 Qg8 f8R Bd2 Qe7 Ra7 d8N+ Ka8 Qh7 Rb7 Qd7 Rc1 Ndf7 Bc3+ Ke6 Rc7 Bge4 Rb1 b7+ Ka7 Bf3 Nb6 Ke7 c5 Kd8 Rc6 Qd4 N8d7 b8B+ Kb7 Qd3 Nd5 b6 Bb5 Bg3 Nc7 B3h4 Kb8 B3e4 Rd6 Ba8 Rc6 b7 Nb6 Qd7 Ba4 Qf2 Bb5 Rg1 h1B Rg3 Bd5 Rf3 Rg6 Qg1 Bbc6 Qe6 Be8 Qd7 Rd6 Bd3 Re6 Rf6 Rc6 Bf5
4K1N1/pb2Q2n/kR2r3/BNQrR3/2N3bq/B1PB1QrQ/1N5b/n3n2Q b - - 0 1 illegal: No possible last move, all moves rejected
Q4Q2/Rn3bq1/1r1q2NN/B4RB1/R1r1kB2/bnQn2KQ/B3rP1p/2B5 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 g4 Kd6 d4 a5 b6 h5 f6 c5 g6 e5 b7 h4 g5 h3 f7 a4 g7 a3 g6 e4 b5 e3 b6 a2 Na3 c4 Nf3 c3 Ke2 h2 Nc4+ Kd7 d6 Ke6 d5+ Kf5 d7 c2 d6 Nc6 b8Q Kf4 b7 Qe7 d8B Ra5 d7+ Ne5 Qd3 Qg5 Nd4 Ra8 Qc7 Bb4 b8B Bb7 f8Q+ Qf6 Nf5 Ra6 Nh6 Ne7 g8R Bc6 g7 Nc8 Qc3 Nd6 Qc8 Bg2 Ba5 Nd3 d8B Rb6 Ne5 Ba3 Ng6+ Ke4 Qh3 Nb7 Bf4 Qd6 Bdg5 Rh7 Qa8 Rh8 Rb8 Rc8 g8Q Rc4 Rg1 Bh1 Rg4 Bg2 Rf8 Bh1 Rb1 a1Q Rf5 Qb2 Qgf8 Bg2 Qe1 Qg7 Qc3 Bh1 Ra1 Bg2 Qh5 Bh1 Bh3 Bf3+ Kf1 Bd1 Kg2 e2 Kg3 e1R Bf1 Bf3 Qh3 Re2 Bd2 c1N Ra2 Nb3 Bc1 Rc2 Rh4 Bh5 Be2 Na1 Bd1 Re2 Bb3 Bc5 Ra4 Ba3 Ba2 Nb3 Ng8 Bf3 Rh7 Bh5 Nh6 Qgf6 Rd7 Qg7 Nh8 Be8 Ng6 Bf7 Rd5 Nd8 Ra7 Nb7 Rf5
1B3BN1/3r3q/2RB1nQ1/bb3R2/1r1nBN1k/1b2Br2/1Rp1qNP1/2K1NQ2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Ke7 Kd2 h5 e4 f5 b4 a5 g6 c5 d6+ Ke6 d5+ Kd7 b6 c4 b7 f4 b5 f3 e6+ Ke8 d7+ Ke7 d6+ Kf6 g7 Kg5 e5 f2 e7 h4 e8Q h3 e6 a4 e7 h2 b6 a3 Nf3+ Kg4 Bd3 f1B Nc3 a2 Rb1 a1R Be4 Rh4 Ne1+ Kg3 Rb2 Rb1 Qg6+ Rg4 e8R Ra2 Re6 Nc6 b8B Kh4 b7 Qe7 d8B Rg3 d7 Rf3 Bd6 Nf6 g8N Ra7 b8B Nd4 Ba5 Rc7 d8N Rd7 Bab4 Qh7 Rg1 h1Q Ba3 Bd3 Rf1 Qg1 Qe2 Qf2 Nd1 Ba6 Bab4 Bc2 Ba3 Bg7 Bf8 Ba4 Rc6 B6b5 Ne6 Bb3 Nf4 Bh6 Bfd6 Bf8 Bac5 Be7 Ba3 Bd8 Bab4 Ba5 Bf8 Rc3 B4d6 Qf3 Nf2 Qg4 Rc2 Rf3+ Kd1 Rb2 Be3 c3 Kc1 Qe6 Qd1 Qc4 Rd2 Qe2 Rc2 Bf7 Qd3 Rb4 Rb2 c2 Nd1 Qf2 Nh3 Rg3 Qc4 Qf3 Qe2 Qg4 Rf5 Bb3 Qf1 Qe2 Ndf2 Rf3 Nf4
3QrNR1/2BQNqnB/k2q4/1RbQ2K1/1NR4Q/b3Q1Pp/N2r1q2/3b3n b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 h5 Kf4 c5 b4 Kc7 d4 Kb7 f6 a5 d6 h4 b6 a4 f7 e6 g6 a3 g7 c4 b5 h3 d7 a2 d5 c3 g3 c2 d6 Qc7 d8Q e5+ Kg5 e4 f4 e3 d7 e2 f5 e1Q f6 Ra5 Qd5+ Nc6 Nf3 Ra4 Bd3 Rf4 Nh4 Qb8 Nc3 Rb4 Rb1 a1Q Bh7 Qa5 Bf4 c1B Na2 Qe4 Ng6 Qf3 Ne7 Bb2 Rhc1 Rd4 Bc7 Qaa3 Rc4 Nh6 g8R Rd2 Qe8 Qc5 d8Q Ba3 Qed7 Ng4 Rb3 Bg7 f8Q Qcf2 f7 Bd4 Qh6 Bdc5 f8N Qf7 Qf6 Ne3 Qfd4 Nf5 Qh4 Ng7 Rb1 Ka8 b7+ Ka7 b6+ Ka6 Rb5 Nb4 Q8e8 Nd3 Qed8 Qg1 Q8e8 Nf2 Qed8 Nh1 Q8e8 Qa7 b8Q Qd1 Qba8 Bb7 Qad8 Bc6 b7 Qf2 Qe5 Bf3 Qf7 Bh5 Qfd5 Qf7 Qee6+ Qb6 Qh6 Qc2 Qhe6 Bd1 Qe3 Qd6 b8N+ Ka7 Nbc6+ Ka6 Bd3 Qb2 Bf5 Qd4 Qee6 Qf2 Qe3 Rh6 Bh7 Re6 Nf5 Re8 Nfe7 Qe1 Rd4 Qg1 Rc4 Qgf2 Ncb4+
n2Q1B1R/1Bb3rq/2K1Rqn1/Q1B1BQR1/n1B5/N3r1pb/1N1P1r1k/1R6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kd4 a5 e4 g5 h4 a4 b4 c6 b6 g4 b5 a3 d6 Ke6 Kc5 g3 h6 f4 b7 f3 b6 a2 h5 f2 h7 Ra7 h6 Qh4 Nf3 Qe7 Qc2 Qe8 Rh5 Ra4 Ne1 Ne7 d7 Qg6 d8Q Qe8 Na3 Ra6 Rg5 Qh5 Nd3 Rg8 h8R Rg7 Rb1 a1Q h7 Qh2 Be2 f1R Nb2 Rf2 Qc3 Ra4 Qa5 Rd4 Bb5 Rd3 Ba6 Re3 Qd3 Kf7 e6+ Kf6 Bc4 Ng6+ e7 Na6+ Kd6 c5 b8B Bg4 b7 Bh3 Kc6 Nc7 e8B Na8 Ba7 Bd6 b8B Bc7 Bd7 Qh1 Bc8 Qh2 Bb7 Qh1 Bb5 c4 Bc5 c3 Bc4 c2 Re8 Qh2 h8R Qh1 Rd5 Qh2 e5+ Kg5 e6+ Kg4 e7 Kf3 Rg5 Kg2 Qf5 Qh1 Rd8 Kh2+ Rd5 Qe4 e8Q Qh4 Rd6 Qh7 Nd3 Qc3 Qd8 Qf6 Bb2 c1N Be5 Na2 Nb2 Nc3 Re6 Na4 Bba7 Qh4 Bf8 Qh7 Bac5
3R3b/3Q1Qr1/4R2B/Qr1nrQq1/N2K1N2/Q2B1PNq/bp4n1/kqR4R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 d4 g5 h4 b5 a4 c5 f6 e5 f7 c4 a6 c3 a5 c2 h6 e4 f3 b4 h5 b3 h7 b2 a7 g4 h6 g3 a6 g2 Bd3 Qb6 Ne2 g1R Nbc3 Rg7 Ng3 Nc6 Na4 Rb8 a8Q Nb4 a7 Ne7 Qb7 Ng6 a8Q Be6 Qe1 Rhg8 h8R Nh4 h7 Qa6 Bd2 c1Q Qaa7 Qc8 Rc1 Qa5 Qd1 Be7 f8Q Qb5 Qf5 Bf6 Qba8 Re8 Qf7 Re7 Re8 Ng2+ Ke2 e3 h8N Qbc5 Ng6 Rb5 Nf4 Be5 Qb3 Qd7 Qa5 Bf6 Kf1 e2+ Kf2 Qdc8 Qa3 Be5 Q7h5 Bg8 Qff7 Qh3 Qhf5 Bf6 Nfh5 Re5 Bh6 Rg6 Nf4 Bh8 Qh7 Rg7 Re6+ Kd7 d6 Kc6 Qhg6 Nd5 Qgf7 Nde3 Nfh5 Kd5 d7 Qe7 Qf8 Qg5 d8Q+ Rd7 Qde8 Rh7 Qf8f7 Rg7 Bc2 Kc4 Nf4 Nd5 Qfd7 Nc3 d5 Bf7 d6 Nd5 Qe3 Bg8 Bd3+ Kb3 Qdf7 Ka2 d7 Rb7 d8R Rb5 Bb1+ Ka1 Qed7 Bh7 Qg4 Bc2 Qgf5 Bb3 Qc5 Bc4 Qa3+ Ba2 Rcf1 Nge3 Bd3+ e1Q+ Kg1 Qc1 Kf2 Qb1 Rc1 Rg8 Ke2 Rg6 Kf2 Rg7 Ke2 Ng2+ Kd2 Ne7 Kc3 Nd5+ Kd4
bN6/q1B1b3/rb5K/2RBRr1N/k2n1R1B/1R1qPR1p/2B4Q/Q1qn1Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 h5 g4 a5 b4 c5 d4 c4 d6 c3 b6 Kc6 b5+ Kd7 g6 a4 e6+ Ke8 d5 a3 e7 Kd7 Kg5 c2 g7 h4 b7 f4 b6 f3 Nh3 f2 Nd2 a2 Nc4 Na6 b8Q Qc7 e8R Ne7 g8B Rh6 b7 Qb6 Nf4 h3 Nh5 Qc6 Na5 Bg7 Bf4 c1Q e3 Bh8 Bd3 f1Q Bc2 Qa3 Rc1 Qf2 Rf1 Qca4 Nc6 Qg2 Rf3 a1B Qf1 Nf5 Re5 Qc5 Bg3 Qad4 Bh4 Qg1 Qa7 Bg7 b8R+ Nc7 Rb3 Rf6 Bf7 Bc3 Qa1 Qd3 Rf4 Bb4 Nb8+ Kd8 d7 Nd4 Bg8 Raa6 Be6 Ke7 d8R Ncb5 Rf8 Kd6 Rf3 Kc7 d6+ Kb6 d7 Bb7 Bd5 Nc3 d8B+ Kb5 Bc7 Qa7 Rf7 Rf4 Rf8 Bf6+ Kh6 Ba8 g5 Rf5 g6 Nd1 g7 Be7+ Rf6 Bc5 g8Q Bb6 Qg3 Qh1 Qh2 Qg1 Qb1 Ka4 Qa1+ Ba3 Qfg2 Qe1 Qf1 Qec3 Bb1 Qb2 Rc5 Qc1 Bc2 Rg5 R6f4 Rf5 Qb2 Bb4 Rc6 Bd6 Rc5 Be7 Qa1+
1q1N3Q/k1rq1N2/4b3/nB3Qbr/1KR5/N2P1R2/2NpRRqb/Bn3QN1 b - - 0 1 illegal: No proof kernel
2q5/N2R1BBR/3K1n1R/1rB2N1R/k2nb3/bn1pQ1rP/Q2qBR2/1Q4r1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 a5 Kc4 e5 Kd5 a4 f4 a3 b4 g4 c4 e4 b6 e3 b5 a2 b7 d6 b6 Kd7 f6 e2 c6+ Ke8 f5 e1Q c5 g3 c7 Kd7 h6 g2 h7 Qde8 f7 Ra6 c6+ Ke7 Qd4 Nd7 b8Q Qd1 b7 Qg4 Qe3+ Ne5 Qa8 Ra4 b8Q Qg5 Nc3 Qh5 Nf3 g1N Bb2 Ra6 Be2 Qg4 Nb5 Qd8 Na7 Rb6 Nd4 Nf3 Rad1 Bb7 c8B a1R Be6 Qc8 f6+ Kd8 Ba3 Nc4 Bc5 Ncd2 Nf5 Nb3 Rd2 Be7 f8B Qg2 f7 Rb5 Bg7 Rg1 Rd4 Qf2 Rh4 Bf8 Rh5 Nfd4 h3 Rg3 Ra1 Qe1 Ra6 Qd2 Rb6 Nh6 Ra6 Rg8 h8R Ng4 R8h7 Rg1 Bd7 Rg3 Be8 Be7 f8R Rg1 Ke4 d5+ Kf4 Nf6 Ke5 Rg3 Rf7 Bf8 Re7 Rg1 Bf7 Rg3 Ra2 Rg1 Re6 Rg3 c7+ Kd7 Bb6 Ba3 Bc5 Ne4 Reh6 Nf6 Bgf8 R8g4 Bg7 Rg1 Rb2 R4g3 Rc2 Ne6 Rb2 d4 Ra2 d3 Rb2 Qh8 c8R Be4 Rc6 Qc8 Rc7+ Kd8 Re7 Ned4 Kd6 Rb7 Rb1 Nc1 Be6 Bb2 Bf7 Rb4 Qd5 Ba3 Qa2 Rb7 Ke5 Rb2 Re8+ Kd7 Qb5+ Kc7 Rd8 Rb4 Ra1 Rb1 Qbb3 Rb2 Qd1 Rb5 Qf1 Kb7 Kd6 Ka6 Rd7 Ncb3 Qc1 Ka5 Qcb2 Rg6 Rf1 R6g3 Rf2 Ka4 Qbb1
1b1K4/NQB4N/N2R4/B1NQ2r1/qqnn4/qp1R3b/kr2B1BP/3Q2nB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 e5 Kg4 c5 f4 g5 a4 b5 d4 c4 h6 b4 d6 c3 d7 b3 h7 c2 f6 Ke6 f5+ Kd5 a6 e4 a5 e3 a7 e2 a6 Kc4 d5 Qc7 d8B Qf7 d6 Bd7 Na3+ Kb4 Bd2+ Ka4 Nh3 c1N Nb5+ Na2 Bc7 e1Q Nf2 Qfe6 f7 Bc6 d7 Qg6 d8Q Qee6 Nd3 Qe8 f6 Bg2 Nb4 Ne7 Qd5 Nf5 Be2 Rg8 h8Q Nd6 Qh7 Nc6 Rg1 Bh6 f8N Nc4 f7 Nd4 Nd7 Qd6 f8N Bg7 Rf1 Be5 Rf6 Bf4 Rb1 Nc1 Be1 Rc8 a8B Rg7 Na7 Ka3 Nc5 Qa4 Kh5 g4 Bc3 Qb6 Rd6 g3 Qhe4 Qbb5 Nh7 Bh3 Rb2 g2 Rd2 g1Q Rd3 Qe1 Qb7 Rg4 Qed5 Qba5 Bd2 Rg2 Bc3 Bg3 Kg6 Rg8+ Kf6 Rg5 Ke7 Be5 Kd8 Bf4 Nbc6 Ka2 Nb8 Q5b4 Bd2 Qba3 Bda5 Qh4 Nc8 Qe1 a7 Qeb4 Nba6 Be5 Qb8 Rf2 Bc6 Bf4 a8B Be5 Qb7 Rfg2 Bg4 Nce2 Na7 Ng1 Be2 Bf4 Qf7 Rf2 Bh1 Be5 Qfd5 Bf4 Bh5 Rb2 Be2 Nf5 Qdc6 Qbb5 Qbb6 Nh4 Rd7 Bd2 Bb8 Nhf3 Qd6 Nd4 Bag2 Qbb4 Qb7 Bf4 Qdd5 Be5 Bd6 Bh8 Bf4 Be5 Bg3 Bb8 Bgc7 Qd2 Rd6 Qe1 Qe6 Qeb4 Qed5
1Q1Q2Bq/N2B4/3Q2b1/N1Kn1Rb1/1N6/pr3bq1/Pnn1BQ2/k1R1B1Qr b - - 0 1 illegal: No possible last move, all moves rejected
2rNBr1N/2B3Q1/B1bQ4/2q1b1k1/1Bn2rP1/2QR1q2/KBn2pR1/N3n2Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 Kd2 c5 Kc3 h5 Kb2 a4 g4 c4 b6 f4 e6 a3+ Ka2 c3 d6+ Ke8 e7 Kf7 e8B+ Kg7 d5 h4 d7 f3 e5 c2 e6 h3 e7 f2 b5 h2 g6 Kf6 d6 Na6 b7 Qa5 d8N Nh6 b8B Qd2 b6 Qe2 g7 Qd3 g8Q Qg6 b7 Qf5 d7 Nf7 Ne2 Nh6 Bc7 Bg7 b8Q Nf7 Rg1 h1Q Rg2 Nd6 Nd2 Nc5 Nb3 Nd3 Bb2+ Kg5 Nf4 c1R Ng6 Ne1 Ba6 Be5 Qg7 Rc4 Qd5 Ra4 Rd1 Rf4 Rd3 Nc4 Na1 Rf8 Qb6 Qh5 Qbd6 Bb7 Qe4 Rc8 Nh8+ Qhg6 Ba5 Bc6 Bb4 Qf7 Qed4 Qd5 Qc3 Qc5 Qh7 Qf7 Qh1 Qg7 Bh5 Qg6 e8Q Qf5 Qf7 Qf6 Nb7 Qf5 d8B+ Qf6 Bc7 Qf5 Kb3 a2 Nd8 Qe4 Bg6 Qed5 Qg7 Qf3 Nc2 a1N+ Ka2 Nb3 Na1 Nd4 Qgh7 Ndc2 Be8 Ba4 Qf7 Bc6 Qg7+
qbkQ4/1RB1BBRN/2N5/r7/2pQ2q1/nQ1nq1P1/1rb4K/Q1nR1R1R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 f4 a5 Kf2 e5 Kg3 c5 b4 h5 b6 e4 b5 h4+ Kh2 e3 g3 h3 f6 e2 b7 e1N g6 a4 d6 a3 f5 a2 b6 Be7 f7 Bf8 f6 Qe8 g7 Ne7 g8R Rh4 d5 Rh7 Bf4 Nbc6 b8R Ng6 b7 Ng2 Nf3 Nge5 Nbd2 Rh5 Nd4 Kd8 d7 Ra5 Rg7 Ne1 N2f3 N5d3 Ng5 Nc1 Nh7 Na7 Bc4 Bd6 f8R Nb5 f7 Ned3 Nc6+ Kc7 Rb1 a1Q d8B+ Kd7 Be7 Na3 Qb3 Bc7 d6 Qd4 Qc3 Rd5 Qa1 Rf5 Bd5 c4 Rd1 Qe3 Rh8 Qg8 f8Q Rg5 Qff6 Rb5 Qfd4 Rb2+ Kh1 h2 Bf7 Ra5 Rf1 Nb3 Rbd1 Nbc1 Be8+ Ke6 d7 Be5 d8Q Bd7 Ra8 Bb8 Ra7 Bc8 Bc7 Bd7 Ne5 Ba4 Nc6 Bc2 Be5 Bc7 b8Q Bd6 Qb3 Bb8 Rg5 Qg6 Rb7 Qf5 Rg7 Qg4 Rg1 Qh5 Kg2 Qg4 Bc7 h1Q+ Kf1 Qhh5 Kg2 Qd5+ Kh2 Qde4 Rf8 Qd5 Rff1 Qde4 Bg6 Qd5 Qf8 Kd7 Qff6 Kc8 Rh1 Qde4 Bf7 Qe4f3 Nd8 Qc6 Qg5 Qa6 Nc6 Qa7 Qgd5 Qa8 Qd8#
KR3Nnq/1RB3QB/6qn/3N3B/PrRrb1Q1/R2Bk1qp/4N3/r1R1b3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 b5 Kd4 h5 Kc5 e5+ d6 h4 d4 e4 a4 e3 f4 h3 g4 c6 f6 Kg6 d5 b4 a6 b3 f7 e2 a7 e1R f5+ Kg7 g6 Kf6 g5+ Ke5 g7 Ke4 g6 b2 f6 Qc7 Nc3+ Ke5 Nge2 b1Q Ra3 Nh6 g8B Qbb7 g7 Qa6 Bf4+ Kf5 Bh7+ Kg4 g8R+ Kf3 Rg4 Be7 f8Q Bf5 f7 Rg8 Qg7 Rd8 f8N Bh4 d7 Be4 d6 Qcc8 Qdd4 Ra1 Nd5+ Qd3 Kb6 c5 Qg1 Be1 Rh4 c4 Q1g4+ Kf2 Rg1 c3 Bh2 Qc5+ Kb7 Nc6 Be5 Rac8 a8B c2 Bf4 c1Q Bh2 Re8 d8R Q5c3 d7 Q1c2 Bc7 Qg3 Rh1 Re5 Re8 Rd8 Re7 Rf5 Rg1 Rf4 Rh1 Rc8 d8R Q2d3 Rde8 Rd8 Rg1 Rd6 Rb8 Qe5 Rf7 Ne7 Ka7 Neg8 Bc6 Rc1 Be8 Ra1 Ka8 Rb6 Re7 Rb4 Bh5 Qec3 Bb6+ Qcd4 Reb7 Qc2 Ba5 Qc6 Bc7 Qg6 Nc1 Qb2 Bd3 Qe5 Ne2 Qb2 Qe7 Qh8 Qg7 Rd4 Ndc3 Ke3 Rh1 Bf2 Rc1 Be1 Nd5+ Kd2 Ne3 Rb4 Nd7 Bf5 Qf3 Rg4 Nd5 Rgc4 Rd4 Be4 Qg4 Qg2 Ne7 Ke3 Nf8 Qf2 Rd7 Qg3 Rd4 Rc6 Rdc4 Rd6 Qh4 Rd8 Qg4 Rd4 Nd5+
1K2RN2/BN2RnR1/3nR2b/1Nq4P/b6Q/RB6/pb3B1B/nk1qQr1r b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 h4 g5 b4 e5+ d6 a5 f4 g4 d4 g3 b6 a4 f6 a3 d5 g2 f7 c6 f5 Qd7 b5 Qa7 h6 Qa4 h5 Be6 h7 Ra5 f6 Nh6 b7 Bh3 Kb6 c5 Kc7 c4 b6 c3 d7 c2 d8N Nd7 b8B Qd4 b7 Rb5 d6 Rb2 Bc4 Nb6 d7 Qf2 Ba7 Nd5+ Kb8 Ne3 Qe1 Rb6 Nf3 g1Q Bb3 Kd3 Nd4 e4 N4e6 Nc4 Be3 c1B Nc3 Bb2 Nb5 Nd6 Ra2 Bg7 f8R Nhf7 Rg8 Bh6 Rg7 Rf8 h8R Ra6 Beb6 e3 Rhh7 e2 Bc5 Qf5 Bf2 Qc5 Ra1 Qf1 Rhg1 Ra4 R1g6 Rh4 Ra2 Bg2 Ra1 Rh1 Ra2 Re8 Nf8 Bc6 Ra1 Re4 Ra2 Rf4 Ra1 Nh8 f7 Rf3 Re6 a2 Rc1 Rf4 Rc4 Qg1 Ra4 Qg4 Ra3 Rf5 Bd4 Rff1 Bf2 Qgd4 Ng6 Qdd5 f8R Nhf7 Rfe8 Qdd4 Nf8 Qdd5 Qa1 e1N Qc1 Nc2 Qe1 Ng5 Rge7 Na1 Rhg7 Qf3 Kc7 Qfd5 b8B Ngf7 Nb7 Qf3 d8Q Qd1 Bc4+ Kc2 Bd5 Ne4 Bb3+ Kb1 Qd4 Ned6 Qh4 Qb4 Nd4 Ba4 Nb5 Nf5 Kc8 Qc5+ Bc7 N5d6+ Kb8 Nf5 Bf4 N5d6 Bh2
4b1bB/B2R2Qq/N1Bb4/RNr1N1P1/RB4kB/2pn2rR/3Q2r1/K2nq3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 d4 h5 Kd2 e5 Kc2 a5 Kb2 h4 g4 h3 d6 c4 f6 Ke6 g6 e4 b6 e3 f5+ Kd5 b5 Ke4 d7 Kf4 b7 a4 g7 h2 b6 Bc5 f7 Rh3 f8Q Rh8 d5 Ra7 f6 Ne7 g8R Rh7 f7 Rh4 d6 Rh5 Qg7 Kg3 f8B e2 Bg2 e1Q Na3 Na6 b8N Nd5 b7 Qc7 d8R Bd7 Nf3 Be8 d7 Ne3 Ne5 Bd6 Bc6 Nb4 Nb5 a3+ Kb1 Kf4 Qd2 Nd3 Na6 c3 b8B Ra8 Ba7 Kg3 Ra2 Nd1 Ka1 Rg5 Be7 Rc8 Bf6 Qb7 Rh8 Rc7 Rf1 h1B Rf4 Bd5 Ra4 Bg8 Bb2 Rf5 Ra5 Rf3 Bc1 Re3 Rh3+ Kf4 Bh4 Rc8 g5 Rc7 Bd5 Rc5 Bc6 Kf5 Rb8 Rf3 d8B Rg3 Bf6 Qc7 Rb7 Qf7 Qh6 Qh7 Rd7 Rg2 Bh8 Rg3 Kb1 Rg2 Ra1 Rg3 Qg7 a2+ Kc2 Rg2 Ba3 Rg3 Bb4 Rg2 Rb1 a1R Rb2 Ra2 Kb1 Rg3 Rb3 Rb2+ Ka1 Rc2 Rba3 Rb2 Qe3 Rbg2 Qe2 Kf4 R3a4 Kf5 Qa2 Kf4 Qd2+ Kf5 Nf3 Kg4 Ne5+
nRn3Nq/k3r1bQ/bq4R1/3RP2B/QRR5/2Np2N1/4bBr1/NKB4r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 h4 d5 e4 Kd7 b4 Kc7 c4 Kb7 Kc2 a5 e6 f5 c6+ Kb6 e7 f4 e8R d4 c7 g4 c5+ Kb7 c6+ Kb6 h6 a4 h5 a3 h7 a2 h6 g3 Re6 f3 Rh4 f2 Nc3 g2 Be2 f1B Bh5 Na6 Nge2 g1R Rg6 Bd7 c8R Bg7 c7+ Qf6 Ng3 Ka7 b6+ Kb7 b5 Ne7 e5 Rd8 h8R Be2 h7 d3+ Kb2 Qf4 Qa4 Qf1 Rb4 Nd5 Rf8 Ra7 h8Q Nf6 Qh7 Bh3 Rb1 Rd5 Rfd8 Rc5 Rd5 Rh1 Rc4 Qd1 Re8 Qg1 c8N Bhg4 Ne7 Bc8 Ng8 Nd7 Rd8 Kb8 b7 Nc7 Ka1 Qe3 Rbb4 Nb6 Rf8 Nca8 Kb2 Kc7 b8N Ba6 Nc6 Kb7 Nd4 Nc8 b6 Kb8 Ka1 Re7 b7 Ka7 Nb3 Rc6 Kb2 Qb6 Na1 Rf6 Rfd8 Rf2 Re8 Rg2 b8B+ Kb7 Bd6 Ka7 Bc5 Rhg1 Bf2 Rh1 Nc2 a1Q+ Kb3 Nd6 Rb8 Qb1+ Ka3 Nc8 Na1 Qc2 Rcc5 Qd1 Ka2 Qd2+ Kb1 Qh6 Bg4 Qh4 Rc4 Qf6 Bh5 Qf8 Nh6 Qh8 Ng8
B4Q1Q/1rb1R1R1/2QBB3/q1PQ4/2nr1q1n/Bk3p2/1rb2Nq1/K2RB2N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 c6 Ke7 Kd2 Ke6 Kc3 d5 h4 g5 b4 a5 Kb2 f5 c4 d4 e4 d3 b6 a4 b7 d2 b5 g4 c7 f4 c5 g3 h6 g2 b6 Qf6 h5 Ra5 h7 Qh6 Nc3 Be7 Nge2 g1R Ng3 Bf8 Bg2 Qg6 h6 Nc6 b8B Qe8 b7 Rf1 Rg1 Bd6 Nh1 a3+ Kb1 Bd7 c8B Nge7 Qf3 Ra7 Nd1 Rg8 h8B Qf8 h7 a2+ Kb2 Qg7 Ndf2 d1Q Bc7 Qg5 b8Q Rd8 Bf6 Qe1 h8Q Nf5 Ba5 Qg8 Be7 Qe3 Qc7 Rd1 Be1 Nh4 Qb6 Bc7 Bf8 Re8 Bd6 Rd4 Qa6 Na5 Qb7 Kf7 e6+ Kg6 e5 Kf5 e7 Ke6 Qb8 Qe4 Qb6 Kd5 e6 Kc4 Qfh5 Qe5 Ba8 Ba4 Qc6 f3 Qf7 Rf8 e8Q Bc2 Rg3 Qf4 e7+ Rd5 Qfh5 Rd4 Qd8 Qgg4 e8R Qh3 Bd7 Qg2 Rg7 Rg8 Qf6 Rf8 Ree7 Rb8+ Bb4 Rb6 Qff8 Rab7 Bd2 Nb3 Be1 Nd2 Rb1 a1Q+ Kc1 Qa5 Kb2 Bb3 Ba3 Bc2+ Ka1 Rb2 Rd1 Kb3 Qhd5+ Nc4 Be6
1N2NqBk/1B6/6b1/1PRKB1nq/Qr1p2N1/4bn2/N3q1rB/RB2Qn1R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b6 Kf7 Ke2 e5 Ke3 a5 Ke4 g5 f4 Kg7 h4 a4 b4 a3 c4 d6 b7 a2 b5 g4 c6 g3 f6+ Kh7 f5 g2 f7 Qa5 f6 Qd8 h6 Ra7 c5 Qe8 c7 Be7 f8R Bd7 c8B Na6 b8N Bd8 h5 Bc7 f7 Ba5 c6 Rc7 Nh3 g1Q Qa4 Ne7 Bc4 Qg3 Bb7 Qh4+ Bf4 Nf5 Nc3 Rg8 Rad1 a1Q Na2 Bb6 Nf2 Qb2 Ra1 Rg2 Ng4 Ne3 Bh2 Nf1 Be6 Qee7 Rc8 Be8 f8Q Bg6+ Bf5 Qf7 Qe8 Qf8 Qe6 Rf7 c7 Kg8 h7+ Kg7 h8N d5+ Kf3 Nc5 h6+ Kh7 Qe7 e4+ Kf4 Qbf2+ Ke5 e3 Bb1 e2 Kd6 Kg8 h7+ Kg7 Ke5 e1N Qe6 Rf3 Nf7 Ne4 Nd6 Kh8 Ne8 Rb3 Qe7 Ng5 Kd6 d4 Kd5 Nef3 Qe1 Qh5 Nd6 Kg7 h8B+ Kg8 Bf6 Qe2 Bfe5 Ba5 Ne8 Bc3 Rd8 Rb4 c8B Bd2 Be6+ Kh7 Rc8 Bc1 Rc5 Be3 Bd6 Kh8 Bg8 Rb3 Bdg3 Rb4 Be5+
KB1R1n2/8/1qk4P/3bRqRr/p4nBQ/brR4N/1n2B1QN/R1Q2b1Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 c5 Ke4 g5 h4 a5 d4 a4 b4 g4 b6 c4 b7 g3 d6 f5+ Kd5 g2 e4 c3 b5 f4 h6 c2 e6+ Ke8 h7 f3 e5 f2 h5 Bh6 d7+ Ke7 b6 Qf8 d8R Bg5 Bc4 f1B Rh3 Be2 Rc3 Nh6 Nh3 g1N Bf4 c1Q Nd2 Nf3 Nf1 Qg7 Nh2 Qd2 Qc1 Rf8 h8Q Na6 Kc6 Qf7 b8R Qh7 d5 Nf5 b7 Ng3 h6 Nc7 Qg8 Ra7 Ra8 Nh5 b8Q Qd1 Qbb1 Rb7 Ra5 Qb3 Qgg6 Bf6 Qg2 Nd2 Qch1 Bh8 Qbc1 Qf5 Rb5 Re8 Rc5 Bf1 d6+ Kf8 d7 Ke7 Bg3 Nf4 Ra5 Rb4 Rb5 Qbb1 Kb6 Rb3 Ka7 Bb7 Rd5 Kf8 e7+ Kf7 Ra5+ Bd5 e6+ Kf6 Rb5 Ke5 Rc5 Rf8 e8B Kd6 e7 Ne6 Bh5 Qb2 Ra5 Kc6 e8R Rf7 Bf3 Nf8 Bg4 Bf6 Rb5 Be7 Ka8 Ba3 Re5 Rg7 Ra5 Rg5 Rb5 Rh5 Ra5 Qe6 Rg5 Qf5 Rb5 N4g6 Bb8 Nf4 Ra5 Be4 Re5 Bd5 Rde8 Qbb1 d8Q Qb2 Rd3 Qd4 Rc3 Qb6 Qe7 Ne4 Rd8 Nc5 Rg8 Ncd3 Qh4 Nb2 Rg6+ Qe6 Rgg5 Qf5 Bce2+
1K1QB2R/6N1/qk1R1bPQ/b1rq2B1/nB1B2N1/4n2b/Bp1rq3/4N1QQ b - - 0 1 illegal: No possible last move
1r4N1/1R1B1n1q/b5pQ/B5Qb/8/qRbQrQKR/2B3PR/1NnQkr2 b - - 0 1 illegal: No possible last move
QR2NrQK/1B1n4/1k2rBpn/bnN3P1/7Q/1b1Bq1q1/1B4NR/4BQ1r b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 g6 h4 b4 h5 b3 h6 Bb7 axb3 Bc8 b4 Qd6 b5 Qc5 Rh4 Qc3 Rh1 Qg7 hxg7 Kd8 Bd3 Kd7 Bf1 Ke8 Ke2 Kd7 Kf3 a5 Kf4 c5 Kg5 Kc7 d4 e5 f4 h5 b4 c4 g4 a4 f6 e4 d6+ Kb7 b6 e3 d7 c3 d8B e2 b5 e1Q f7 h4 f5 c2 d5 h3 d6 a3 f6 a2 d7 h2 Ne2 Na6 Na3 Bc5 f8B Rb8 f7 Qa5 Rb1 a1Q Nc4 Bd6 Nf4 Bc5 Bd3 Q1a2 Qf1 Qe1 Bf6 Ra8 d8Q Qe2 Ng2 Ba3 Bcb2 c1R Bb4 Re1 f8Q Qb3 Nd6+ Kb8 b7 Ka7 b8N Bf5 Ne8 Be6 Nd7 Nc7 Nc5 Nh6 g8B Kb6 Qde7 Bc4 Bd5 Rh7 Bd2 Bb4 Qg8 Ba5 Bb7 Qc3 Qe4 Qe3+ Qef4 Re2 Be1 Qg3 Q4f2 Re6 Qd4 Bb3 Qdf2 Qd6 Qh4 Qg3 Be5 Ree7 Kf6 Qd2 g5 Qde3 Bed4 Rh8 Bdc3 Re6+ Kg7 Rb8 Bf6 Rd8 Qh7 Rf8 Qg8 Rdd6 Rg1 h1N Kh8 Nf2 Rh1 Nfg4 Rh2 Ne5 Qe4 Ka7 Qh4 Nd7 b6+ Kb8 Bc6 Nb5 b7 Ka7 Bf3 Kb6 Bfe4 Rd5 b8Q+ Kc6 Qa8+ Kb6 Bf3 Rf5 Bb7 Rf2 Qg1 Rf1 Qf2 Rg1 Qf1 Rh1 Bd5 Bc2 Rc1 Na3 Bbe5 Bd1 Rc4 Kb5 Bb2 Bb3 Qc8 Kb6 Rb4+ Ka7 Rb6 Nb5 Qc6 Bc3 Rb8 Bb4 Rd8 Bc3 Qa8+ Kb6 Bb7 Ba5 Rb8
2N2RR1/2Q1N3/n4P2/B2Kb1p1/1q1Nr1rB/Q1B1qb2/3kb1q1/NnN2BQ1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 a5 h4 d5 b4 a4 f4 a3 c4 e6 b6 a2 c6 g6 c5 Ra6 h6 Ra8 b7 Ne7 b5 Nd7 b8N Qa5 b6 Rg8 c7 Qa6 h7 Qb5 h8B+ Bg7 c6 Qb3 b7 Ra5 h5 Qf3 h6 Rd8 h7 Qg2 Bd2 Rg8 Ne2 Nc5 Rg1 Na6 Na3 Ra4+ Bb4 Bd7 c8N Re8 c7 Bc6 Rc1 a1Q+ Rc3 Bb5 Nc2 Qb1 Nc1 Be2 Na1 Qb3 Nc6 e5+ Ke3 e4 Kd4 e3 b8Q Qa3 Rc2 Bf3 Rf2 e2 Qb6 e1Q Qb7 Kf7+ f6 Ke6 Qa7 Kf5 Qb6 Kg4 f5 Kf4 Qa5 Bh6 f7 Rg8 Bf6 Bg7 f8Q Qb2+ Kd3 d4 Kc4 Ke3 h8B d3 Bh4 d2 Nd4 Nd5 Ne7 Be5 c8N Nc3 Qc7 Nb1 Bg7 Be4 Qg4 d1B Qg3+ Bef3 Qh2 Ra2 Ba5 Bde2+ Nd3 Qh3 Bh6+ Bf4 Ne6 Bg2 Qfd8 Bh5 Qdd6 Ra4+ Qb4 Qbd2 Bg7 Be2 Bb2 Be5 Qh1 Be4 Rg4 Qg2 Qg1 Bd1 Rff4+ Qdf2 Nc1 Bef3 f6 Rg7 Rd4 Rg8 Rd8 Bde2+ Kb3 Qd2 Qa3 Re4 Nd4 Rg7 Rf8 Qc3+ Ka4 Kd2 Rg5 Qe3 Rg3 Bd1+ Kb5 Qb4+ Kc6 Bde2 Kd5 Rh7 Rg4 Rh5 Rf4 Rg5 Rf5 Rg3 Rh5 g5 Rhh8 Rgg4 Rhg8 Bb5 Qb7 Bd3 Qc7 Bde2 Bc3+
2q2b1K/1RQr2nN/b2R1P2/1npQ2rR/B1nq2Bk/2R1b1N1/3B1R2/N2B4 b - - 0 1 illegal: No possible last move, all moves rejected
rB1N4/1qqr2R1/1bnPQQ1R/B6r/4b3/2B1Q1pQ/1nB1B1N1/k2b1KR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 e4 g5 b4 a5 h4 f5 e6 Kf6 e7 c5 e8B f4 e5+ Kf5 d6 Ke4 h6 f3 h7 c4 e6 a4 d7 c3 d5 g4 e7 c2 h5 g3 h6 a3 b6 a2 b7 Nc6 b8R Ne5 d6 Qb6 d8Q Qc5 b5 Nf6 b6 Qc3+ Bd2 Kd4 b7 c1R Bg6 Nc6 e8Q Nd7 Bc2 Na7 Na3 Qa5 Nc4 Nb6 Ne3 Bg4 Nh3 Nc6 Nf4 Nc4 Neg2 Qc7 Be2 f2+ Kf1 Bg7 Qe1 Nb2 Ba5 Bh5 Rb1 a1Q Qe6 Qa3 Qh4 Qb4 Rg8 Bg6 b8B Qbb7 Qhg4 Be4 Qh3 Bf6 Rg7 Bd8 Bb3 Rc5 Bc2 Rh5 Rg1 Rf8 h8B Rf7 h7 Rd7 Qc1 Nc4 Rb5 Nb2 Rb4+ Kc3 Qe3+ Nd3 Rd4+ Kb2 Rd5 Ka1 Re5 Rh4 Rh5 Nb2 Rh6 Rh5 Qf6 Qcc8 Ne6 Bb6 Nd8 Qbc7 Qfe6 Q8b7 Rg4 Rf5 Bhc3 Rh5 h8Q Re5 Bc4 Rh5 Ke2+ f1B+ Ke1 Qcc8 Qhf6 Qcc7 Rg7 Be2 Ba6 Bg4 Kf1 Bd1 Be2
QR5N/2K1QrBB/1rp3Q1/2R2b2/1Q1Q1nN1/b4q2/kR1qP1Nq/1N2b1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 g5 Ke4 a5 d4 g4 h4 f6 b4 a4 e6+ Kd6 e7 c6 e8Q g3 b6 a3 b5 a2 h6 g2 h7 Bg7 h5 Ba6 h6 Qc8 b7 Nd7 b8Q+ Qc7 b6 Bb7 Rh3 Ne7 Nf3 g1Q Nh2 Ra6 Qg6 Qg3 Ng4 Rd8 h8Q Bc8 b7 Ra7 h7 Rf8 Bb2 Qc3 Bg2 Qd2 Rb3 Rf7 Qa8 Qb8 Qf8 Ne5 h8N Nf3 Bc3 Qc7 b8R Ng1 Bf3 Rb7 Bb2 Kd7 d6 Ke6 d7 Rb6 d8Q Nd5 Qb4 Qh2 Qdf8 Nf4 d5+ Kd7 d6 Ke6 Qd8 Bf8 d7 Bc5 Qe8+ Kd6 d8N Bd7 Qc3 Ba3 Ne6 Bc8 Kf5 Bd7 Bg2 Bc8 Bh3 Kd5 Qe7 Bd7 Qca5+ Kc4 Bg2 Bc8 Be4 Bd7 Bc2 Bc8 Ke4 f5+ Ke5 Bd7 Nc3 Bc8 Rc1 a1B Nb1 Bd7 Bd4 Bc3 Be4 Rb4 Kd6 Rb6+ Kc7 Bc8 Rb5 Bd7 Rc2 Bc8 Rc5+ Kb3 Bg7 Bd7 Rc1+ Ka2 Qb4 Qd3 Nd4 Nfh3+ Qgd6 f4 Bh7 f3 Nf5 f2 Nh4 f1Q Ng2 Nf4 Qg6 Be1 R1c3 Bf5 Rb3 Qff3 Qdd2+ Qc2 Qdd4 Qd2 Rb2+
2nKQ2B/Q2B2BR/Qprq4/r1Q2N1b/4Q3/1nP1n2q/NbB2b2/R3kN2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 Ke4 h4 e5 f4 g5 a4 d5 c3 b6 c6 d4 c7 g4 h6 d3 h5 g3 h7 g2 h6 d2 a6 Ke3 a7 Kf2 f6 e4 f5 e3 f7 e2 f6 e1B a5 Ba3 f8N Nc6 f7 Bb4 a6 Qh4 Ne6 Qe4 f8Q+ Qf4 Ne2 g1N Qc2 d1Q Nd2 Nb8 Qe4 Nf3 Ng7 Qe5+ Qc5+ Qd4 Nf5 Nd7 Kc6 Rb8 a8Q Qe3 a7 Ba3 Bh3 Nh4 Nf1 Ba6 c8B Bb2 Kc7 Ng2 Kd8 Qd6 Qab7 Bb5 Qa6 Ra8 Bd2 Bc4 Nc1 Bf7 Na2 Be8 Bg4 Ne7 Bd1 Rf8 h8Q Rf6 h7 Bh5 Bc2 Rg6 Qcc4 Qh3 Bh6 Ne3 Bg7 Rh6 Qe8 Nc5+ Qd7 Re6 h8B Nb3 Qc5 Rh6 Qac4 Rf6 Qf7 Ke2 Qe8 Bf2 Rh2 Qe5 Qdc7 Rc6 Qb8 Qf6 Bd7 Qd6 Rh1 Nc8 Qc7 Rb8 a8Q Rb7 Qcb8 Ra7 Qbb7 Ra5 Qaa7 Qhg3 Rh4 Qh3 Qba8 Bg4 Rh7 Bh5 Bb1 Ke1 Q8b7 Qg6 Qba6 Qd6 Bc2+
R4Nrb/Nb4N1/1pB1q3/nq1r1q1B/2Q1P2B/4BnN1/2BR1Rn1/k1K4Q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a4 Kd7 d4 g5 Kd2 c5 h4 f5 e4 g4 h6 b6 h5 c4 e6+ Kd6 a6 f4 a7 f3 e7 f2 e8B g3 a5 g2 a6 Ne7 h7 Bg7 h6 Be5 Ra2 Nbc6 Rh2 Bf6 Qe2 Ng6 Nc3 Be6 Nb5+ Ke7 d6+ Kf8 d7 Ke7 d5 Qc7 d8N Bf5 Ne6 Qc8 Ng7 Nh4 Bh5 Rg8 h8N Na5 h7 Qe6 d6+ Kd7 Kd1 Kc6 d7 Kc5 d8B Kb4 Ng6 Kb3 h8Q c3 Be3 c2+ Kc1 Bh3 Be7 Rad8 a8R Rd5 a7 Bc3 Qd3 Bf5 Bfe2 f1Q+ Bd1 Qf2 Ne2 g1N Bf6 Ngf3 Ng3 Ng2 Bh4 Qf1 Qd4 Ba1 Nf8 Bc3 Nd6 Qb5 Nc8 Ba1 Rb2+ Ka3 Qc4 Bh3 Rb3+ Ka2 Qh6 Bd4 Rd3+ Ka1 Rd2 Qf5 Nge6 Bh8 Ng7 Qe5 Rf2 Bd7 Rd2 Bc6 Rf2 Qf5 Rd2 Nf4 Rhf2 Ng2 Qe6 Qb4 Qe2 Qe7 Qc4 Qff7 Qh3 Qf5 Qh1 Ne5 Rb8 Qe8 a8B Qee6 Na7 Nf3 Rd8 Bb5 Bc6 Ba6 Ra8 Bb7 Rd4 Ng5 Kd2 c1Q+ Ke2 Nf3 Rd2 Qb2 Bc2+ Nge1 Kd1 Qb5 Kc1 Ng2 Qhf1 Qb3 Qe1 Qb5 Qh1
3B1q2/2Q2QBb/p1Q1r3/7k/B4nq1/2N1NRQ1/KRPn1B1N/nrb1B2q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 e5 Kb3 d5 h4 g5 f4 e4 b6 d4 c6 e3 f6 d3 b7 d2 c7 a6 f5 g4 h6 g3 h5 g2 h7 e2 h6 e1Q Nc3 Ne7 Qf3 d1N Bb5 Qe3 Ra3 Qe4 Ba4 Qe3 Qc6 Qdd4 Nf3 g1Q Bd2 Ng8 Nh2 Qee1 Ka2 Qde5 b4 Qd6 b5 Nd7 b8Q Qe4 b6 Qg5 b7 Qgf4 Be1 Ke8 f7+ Ke7 Bf2 Ne3 Rb1 Kf6 Rb2 Kg5 f6 Qg4 Be1 Be7 f8B Kh5 f7 Bg5 Be7 Ng2 f8Q Ngf6 Bd8 Nf4 Rab3 Rg8 h8B Rg6 h7 Nc5 Qf7 Qh1 Bg7 Qf8 h8B Bf5 c8N Nfe4 Ne7 Nd2 Qbc7 Rb8 Ned5 Bd3 Ra3 Ncb3 Ne3 Na1 Bd4 Bf5 Bhg7 Bh6 Ned1 Bd3 Bdf2 Be4 Ne3 Bf5 Qfc4 Re6 Qf1 Bh7 Rab3 Ra8 b8Q Ra7 Qfc4 Rb7 Q4d5+ Bg5 Qdd7 Rb4 Qf7+ Rg6 Nc4 Ne4 Nb1 Nd5 Qg3 Rb5 Qbc7 Bc1 Rf3 Nf4 Nc3 Nd2 Rb4 Rb6 Ne3 Rb7 Re4 Rb3 Rb4 Rb1 Qff6 Rh6 Rb2 Rg6 Qfe7 Re6 Qf7+
2R1n3/2Bnk1qP/6B1/rNRBpQnQ/r1RQ4/3N2Bq/2QK2bb/b2B4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 g5 f4 d5 b4 e5 h4 a5 f6 d4 c6 g4 f7+ Ke7 h6 g3 c7 d3 f5 a4 b6 g2 h5 a3 b5 a2 f6+ Kd6 c5+ Ke6 h7 Qe7 b7 Ra6 h6 Ra5 c6 Ra7 b6 Qd7 Kd2 Ra5 Be2 Bg7 f8R Ne7 f7 Ng8 Nh3 g1B Na3 Ra6 Nf4+ Kd6 Nb5+ Ke7 Qc2 Bf6 Rh4 Qd8 Bd1 Nd7 b8Q Ra5 b7 Bf2 Qa7 Bg7 b8B Bb7 c8B Ngf6 c7 Ne8 Qd4 Bg2 Bb7 Qc8 Bd5 Qb7 Rb1 a1Q c8B Qa3 Bc7 Bg1 Rb4 Bh2 Rc4 Qb3 Rg8 Bf8 Rc5 Qa7 Bcb7 Ra4 Be4 Qe6 Ba8 Qh3 Bg6 Ra5 Bd5 Qb7 Kc3 d2+ Nd3 Ra4 B1f3 d1N+ Kd2 Nf2 Bd1 Qg3 Rg4 Nh3 Rf4 Ng5 Re4 Bg7 Rf8 Rg8 h8Q Qh3 h7 Bh6 Qg7 Nd6 Rc8 Ne8 Qh8 Bf8 Qg7 Qa7 Qh6 Qb7 Qh5 Bh6 Bf5 Rg6 Rh4 Rga6 Bg6 R6a5 Qdc3 Qc6 Rhc4 Qf6 Qd4 Bf8 Kc3 Qg7 Bf4 Kf6 Kd2 Bd6 Bg3 Ke7 Rc6 Ba3 R6c5 Bb2 Ba8 Ke6 f8Q Ba1 Qf5+ Ke7 Bd5
1K1nQ3/4k1P1/r1Brb2q/NNR1b1nR/1Qq4p/2B5/1R2Q2N/qN1b1N1Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 f5 Ke3 a5 Kd4 h5 e4 c6 g4 a4 b4 a3 g6 a2 g7 f4 e6 c5+ Ke5 f3 d4 f2 g5 c4 b6 c3 b7 c2 d6 Qb6 d7+ Ke7 d8N Qc5+ d5 Qc6 g6 Qd7 d6+ Ke8 b5 Rh7 b6 Ra3 e7 Ra4 Bd2 c1Q Ne6 Qdc7 Bg2 f1B Bc3 Bc4 Nd4 Bd3 Nge2 Qd7 Ng3 Qc2 Nb5 Qf2 Nf1 Nf6 g8N Qe3 g7 Ra8 Nh6 Bc4 Ng4 Qf2 Ngh2 Na6 b8R Bd3 b7 Qc6 d7+ Kf7 d8N+ Ke8 Bf3 Qc4 Kd6 Nb4 e5 Nc6 Kc7 Be6 Rc8 Be2 b8Q Rh8 Nb7+ Nd8+ Bc6+ Kf7 Qd5 Rh6 Na5 Qe3 Qd1 Nh7 e8Q+ Kg8 Qb6 Ra6 Kb8 Ng5 Qc5 Qd2 Qb4 B2g4 Qe1 Bd1 Qe2 Qe3 Qg6 Qh3 Qge4 Kf7 Qh7 Bd6+ Rc7+ Bd7 e6+ Ke8 e7 Be5 Qhe4 Rd6 Qh4 Kf7 e8Q+ Kf6 N1a3 Bf5 Rb1 a1Q Rb2 Be6 Nb1 Qe3 Qe4 Qd2 Rg1 h4 Qh1 Nh3 Rg4 Qh6 Rd4 Ng5 Rd5 Qd3 Bb7 Qd4 Rcc5 Qc4 Bc6 Bd4 Qh8 Ke7 Rf5 Be5 Qg8 Nh3 Rh5 Ng5 Qe8+
1rr1B1N1/q1RR1Qp1/1N4PB/k4N1q/2N4Q/3nQNnn/bq1R4/R2K3b b - - 0 1 illegal: No proof kernel
1kQ1B1NK/3R1p2/1qq2r2/1B3B2/1q1B3b/1bbR1QPN/2n1R3/r2RnBN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 h5 Kh4 c5 e4 Kc7 b4 a5 d4 a4 d6+ Kb7 b6 c4 e6 c3 g3 c2 b5 a3 d5 a2 e5 Be7 d7 Ra5 d6 Bf8 e7 Nh6 e8B Qf6 d8R Bg7 e6 Qf2 d7 Qd2 g6 Bf8 g7 Ng4 g8B Bg7 e7 Qh2+ Kg5 h4 Nh3 Be5 Qf3+ Nc6 Be3 c1Q Nc3 Qa3 Rd1 a1B Bd4 Rh7 Ne2 Nf2 Neg1 Ka8 b7+ Kb8 Re1 Ra6 Re2 Rh8 Bh7 Rg8+ Kh6 Nd3 Bf5 Rg6+ Kh7 Rf6 Kg7 Qf2 Kh8 Kc7 b8N Ncb4 Nc6 Bc3 b6+ Kb7 Na5+ Kb8 b7 Ne1 Nc6+ Kc7 b8R Nbc2 Rb1 Qb4 Rd1 Ra1 Rh2 Kb7 Re3 Bf4 Red3 Bg5 Rg2 Qe3 Re2 Ka8 Ne5+ Kb8 Ng4 Qe6 Nh6 Qeb6 Ng8 Ka7 Qf2 Ba6 Qf3 Bc4 Rb8 Bb3 d8Q Q6c5 Rb5 Qb6 Rd5 Kb7 Qd6 Ka8 Nf2 h3 Bb5 h2 e8B h1Q+ Nfh3 Bh4 Qe6 Kb8 Rd7 Q6a5 Qa6 Qb6 Qf2 Qd5 Qf3 Qdc6 Qc8+
2R4b/r2bkp1P/R1N1Br1B/Q6K/QN3bR1/1Rq2nrB/B1Rn4/1q1Q4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Qc2 g5 Kf2 c5 Kf3 a5 d4 c4 b4 a4 e4 a3 h4 a2 b6 c3 b7 Qd7 b5 Rh6 e6 Bc5 Kg4 Be7 b6 Qc7 e5 Rg6 h6 Bf6 d6 Ra4 d7+ Kf8 h5 Rb4 Na3 Rb3 d5 Qd8 d6 Rb4+ Bc4 Ra4 Rh2 Ra7 Nf3 Ne7 Nd4 Nbc6 b8R Bh8 b7 Nd5 e7+ Kg8 e8B Kf8 e6 Na5 e7+ Kg8 Ra8 Rf6 b8R Rb7 Ra6 Rf5 Qa4 Qb6 d8Q c2 d7 Nf4 Rb1 a1Q Rb4 Ra7 Ba2 Nb3 Rc4 Qc5 Qda5 Nh3 d8Q Qb5 Nc6 Be6 Rc8 Bg7 Qd1 Ng1 Be3 c1B Nc2 Qc5 N2b4 Qb1 Rhc2 Ba1 R4c3 Nf3 Bf4 Be3 Rd3 Nbd2 Rb3 Bf2 Be3 Bg3 Bf4 Bd4 Be3 Qc3 Bd7+ Kh7 e8B Kg8 h7+ Kg7 h8R Kf6 Nd8 Ke7 Rg8 Bh8 h6 Rf6+ Kh5 g4 h7 Bf5 Bh6 Bf4 Rg6 g3 Rg5 g2 Ndc6+ Kd6 Rg7 g1R Rg8 Rg3 Rg5 Be4 Bh3 Bf5 Bd7 Be6 Nd4+ Ke7 Rg4 Bd5 Bf5 Bc6 Be6 Bd7 Ndc6+
Nn2NQB1/k1qNP1R1/1pq2b1Q/r1r2b1K/n4B1N/Q7/R4qRR/N5b1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 c5 Kg4 Kc7+ e6 g5 h4 f6 a4 c4 d4 c3 e4 c2 d6+ Kc6 d7 Bh6 e7 Ra6 e8N Rb6 e5 Rb5 a6 Kb6 a7 Bg7 a8N+ Ka6 e6 Qc7 d8Q Qc5 h6 f5+ Kh5 f4 d5 g4 h7 g3 e7 f3 a5 g2 Ra2 f2 Qf3 Bd4 Bc4 f1Q Nd2 Bf6 Nb6 Ba1 Nd7 b6 Nb3 Nh6 Rh2 Qd6 Bf4 Kb7 a6+ Ka8 a7 Bc3 Na1 Bg7 Qa3 c1Q Nf3 g1B Rhg2 Rf8 h8Q Kb7 a8N Nf7 Qh6 Ng5 Bb3 Qe5 d6 Qf2 Bg8 Ne6+ Kg6 Nc6 Nc5+ Kb8 h5 Qcf1 Qh7 Ned4 h6 Qc4 Nf6 Rf7 Qf8 Ra5 Ne8 Nb3 Qh8 Ka7 h7 Qee4+ Kg5 Bc3 Qhg7 Qee6 h8R Nb8 Rhh2 Rf5+ Kg4 Qd7 Nh4 Qc7 Qg5 Re5+ Kh5 Bf5 Qgh6 Qd5 Ne4 Nc5 N4f6 Qdc6 Rg7 Qf1 d7 Na4 d8R Rec5 Rdd2 Bcd4 Rdg2 Qf2 Nd7 Bb2 Bb3 Bf6 Bg8
kq2NqqQ/1bnKp3/2N2Nr1/2RBNQBP/1b4QB/2R4Q/1n1Nn3/1r6 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h6 Kd7 Ke2 g5 Kd3 a5 Ke4 c5 Ke5 Kc7 h4 Kb7 d4 a4 b4 c4 f4 a3 d6 g4 b6 g3 h5 g2 d7 c3 Ke6 c2 b5 a2 d5 Na6 h7 Qc7 d6 Nf6 Bc4 Ne4 f6 Ng3 f5 Nb4 f7 Rg8 h8Q Nf1 f6 Rg7 Nf3 g1Q Rh3 Qd8 Bd5+ Nc6 Ne5 Kb8 b7 Ka7 Bf4 Qg6 b8N Qe4 b6+ Kb7 Na6 c1Q Nc7 Qd2 Ne8 Qf2 Rg3 Kb8 b7 Nd2 Qh1 Qh7 Qh3 Rg4 Rb3 Bh6 f8Q Rg8 f7 Nb4 Qfg7 Ra4 Qgg4 Na6 Rg3 Re4 f8Q Nc4 Rb3 Ka7 b8N Nb2 Bg3 Bf4 Qff6 Rg5 Bh4 Bb7 Rd3 Qc7 d8B Bd2 Nd7 Qb8 Bb6+ Ka8 Be3 Rg6 Beg5 Bb4 Nd2 Re1 Rc1 a1N Rc5 Nc2 Rg3 Rb1 Rgc3 Rg7 Qg6 Qf8 Q6f5 Rg6+ Ndf6 Nd4+ Kd7 Ne2 Ke6 Qc7 d7 Qhg7 d8N Qb8 Kd7 Nc7 Ndc6 Qgf7 Ng7 Q7g8 Nge8
1qr1q1QR/1R1P3R/1RR2B1Q/B2nQKnN/1r1k1N2/b1p5/2B3b1/3B1br1 b - - 0 1 illegal: No possible last move, all moves rejected
2r5/3P1R1b/Br4QB/3R1nn1/1qBN1pqQ/3q1B1N/1RN2N2/bb2kB1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 h5 Kg2 f5 e4 c5 b4 a4 b6 a3 d6 Kc6 d5+ Kb7 e6 a2 d7 h4 g6 c4 b5 c3 e5 c2 g5 Ra3 g7 Qe8 d8Q Rf3 g6 Nd7 d6 Qe7 Na3 Rc3 Qg4 Qf7 e7 Rh3 e8N Rb3 e6 Rb1 e7 Nh6 g8B Qh7 g7 Nf6 Bgc4 Ne4 g8B Bg7 Qg6 Ng5 Nf6 h3+ Kh2 Bd7 e8B Bc6 d7 Be4 Bd2 c1Q Nc2 Qa3 Ng4 Qb4 Nf2 Rb3 Rc1 a1Q Rd1 Qaa4 Bcd3 Bd4 Bgc4 Ba1 Qdf6 Rb2 Bef7 Rc8 Bfd5+ Kb8 b7 Ka7 Bc6 Kb6 b8N Kc5 b6 Rb3 b7 f4 Bc3 Nf5 Ba6 Qg8 Bdc4 Qab5 Qh8 Rb1 Bg7 Rb2 Bh6 Rb1 Bce2 Qd3 Bcb5 Rb3 Bf3 Rb2 Bc4 Qg7 Na3 Kd4 Nc2+ Kc3 Nc6 Rb3 b8R Rb1 Rc1 Kd2 N6d4 Rb3 Rb1 Qg8 Rb2 Qe6 Na3+ Ke1 Rb5 Qg8 Rd5 Qe6 Nge2 Qg8 Kg1 h2+ Kg2 Qe6 Ng1 Qg8 Ngh3 Qe6 Rg1 h1B+ Kh2 Qg8 B3e2 Bhf3 Rg2 Bg4 Bf3 Qg7 Kh1 Bh5 Qf7 Bg6 Qfe8 Bh7 Qg6 Qbf8 Rg4 Rb6 Rh4 Qb4 Rh5 Ne7 Rf5 Qg8 Rf7 Nf5 Qhf6 Qdd2 Qh8 Bb1 Qhf6 Qd3 Qd8 Ne6 Qh4 Ng5 Nac2+ Kd2 Bab5 Ne4 Rb3 Nfd6 Qgf6 Qg4 Rd5 Ng5 Ba6 Nf5 Qg6 Rb5 Na3 Ke1 Rb2 Rb6 Nac2+
4b1NK/3p1BRR/Qr1Bq3/3Brr2/3P1k2/QN1q4/QnBb4/NB2q1nN b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 hxg5 c4 exf5 c3 bxc3 Nf6 c4 Ng8 c5 Bg7 Nf3 Bh6 Ng1 Bf8 Ke2 Kf7 Ke3 h5 Kf4 a5 Ke5 h4 f4 e6 d4 a4 c4 h3 g4 a3 c6 a2 f6 Kg6 f7 h2 b6 Qe7 b7 Qb4 f5+ Kg7 g6 Rh4 c7 Ra7 f6+ Kh8 g7+ Kh7 g5 Kg6 c5 Rh6 c6 Rh7 Bf4 Qa3 Nh3 Qe7 Na3 Rh4 Qa4 Na6 b8N Rh7 Nf2 Ra8 Bd3+ Kh5 g6 Nc5 Bc2 Qe8 Rag1 a1R Na6 Nh6 g8N Rb8 g7 Bb7 c8B Rf1 c7 Bd5 Bb7 Nf5 c8B Ng3 Bc6 Rh6 B8b7 Ne2 Bg3 Be4 Bd5 Kg5 Qb3 Rh7 Qa2 Na4 Nc5 Nb2 Nb3 Bb4 f8Q Bg6 f7 Rh5 Qd6 Bd2 f8Q Re1 Ba6 Rb6 Bad3 Qf7 Rg2 Ng1+ B3e4 Qf3 Bb1 Qd1 Nc2 Be8 Nca1 Qf3 Qda3 Qd3 Qa6 Rf1 Qfa3 Re1 Nd1 Kg4+ Kf6 e5+ Ke7 Rg5 Kf8 Rf5+ Bf7 Kg5 Nf2 Re2 Bd5 e4 Bc2 e3 Bb1 Qe4 Bd6+ Qg4 Bde4 Re1 Bec2 e2 Nh6 Qg3 g8B Qg4 Kg7 Qg3 Be7+ Kf4+ Kh8 Qd3 Bd5 Re5 Bdf7 Rf1 Rg7 e1Q Bd5 Qee4 Bgf7 Qf5 Ng8 Qe6 Nf6 Rf5 Bf8 Re1 Ng8 Ree5 Bd6 Ne2 Rhg1 h1Q+ Rh7 Qh4 Rg3 Ng1 Rg7 Qhg3 Nh1 Qge3 Rh5 Qe1 Rhh7
2k4r/2P1Q3/1qR3Nr/nN1B2n1/1NQnR3/4N1Rp/Br1B1bNK/3qBb2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 a5 Kf2 h5 Kg3 d5 b4 Kd7 c4 e5 b6 a4 c6+ Kd6 b5 a3 b7 Kc7 c5 e4 f6 a2 f5 d4 g6 h4+ Kh2 h3 g4 d3 f7 d2 g7 e3 g5 e2 f6 e1R g6 Bd7 Nc3 Qe8 b6+ Kd8 Qg4 d1Q Bd2 Re6 Nb5 Bc8 c7+ Kd7 Bc4 Ra5 Rc1 a1N Bd5 Qe7 Ne2 Rh6 Re1 Rh8 Qc4 Nc2 Nf4 Na3 Ng2 Ra4 Re4 Nc6 b8B Nb4 b7 Nh6 g8B Na6 g7 Rb4 Rc3 Nc2 Rg3 Qe8 Ba7 Bd6 f8Q Nd4 f7 Ndf5 Bb6 Qb3 Ba5 Qd1 Be1 Rb1 Bad2 Qd8 Qc2 Qf6 Ba2 Qf3 Qe7+ Kc6 b8N+ Kb7 f8N Re5 Nc6 Rb2 Nba7 Nb8 Ng6 Qd1 Nb4 Nc6 Bgd5 Nf7 g8N Bd7 c8R Re6 N6h4 Ng5 Qc3 Bf4 Qb3 Be3 Nh6 Bf2 Ng4 Nd4 N4e3 Rd6 Rc7+ Kb8 Qc2 Na5 c6 Bc8 Qb3 Ba6 Qc2 Be2 Qc4 Bf1 Nb5 Qg6 Ra7 Qf6 c7+ Kc8 Ra6 Rc6 Rb6 Qd6 Ra6 Qc5 Rb6 Rch6 Rc6 Qb6 Ng6
q1N3n1/2pBNq1k/3B1Q1b/bB1BN1r1/4r1N1/2q1QnR1/2N1P3/1bRK2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 f5 b4 Kf7 g4 Kg7 g6 a5 e6 h5 b6 a4 e7 f4 e8B a3 b7 f3 g5 h4 d6 a2 b5 h3 d5 h2 d7 Ra6 b6 Be7 d6 Rh4 Ba3 Rg4 Bh3 Kh8 g7+ Kh7 g6+ Kh6 Kd2 f2 Nf3 f1Q Rg1 h1Q Nh2 Bf8 Rg3 Qff6 Qg1 Qg2 Kd1 Re4 Ng4+ Kh5 Qe3 Ne7 g8N Qh8 g7+ Ng6 Ne7 Ra8 g8B Qb2 Bd5 Nc6 b8Q Qf3 b7 Qf5 Qba7 Bh6 b8N Ne5 Nbc6 Nf3 Nce5 Qc3 Qad4 Bb7 Nc8 Qf7 Bb4 Ra6 Na3 Ra5 Nc2 Ne7 Rc1 a1B Qg1 Ba6 Qde3 Ng8 Ba3 Bd3 Bc5 Qe7 d8N Qf8 d7 Bb2 Ndc6 Ba3 d8Q Bb4 Nd7 Kg6 Nde5+ Kh7 Bd6 Rc5 Qf6 Ba5 N6e7 Rb5 Nd4 Bb1 Nc2 Rc5 Bb5 Q8e8 Nf2 Qc6 Bd7 Qb7 B5e6 Qa8 Nfg4 Rd5+ Nd3 Rde5 Bd5 Rg5 Nde5
2Rb1r2/1PN2rq1/1p1rBb1Q/1R2N3/Q1RBQqk1/1K1b4/1n1Rn3/2QBR3 b - - 0 1 illegal: No possible last move
N1Qr2Qn/BP2b1p1/1RqQN2q/K7/2BN4/1rBnkB1R/1Q1q2bb/6B1 b - - 0 1 illegal: No possible last move
2N2K1N/p3R1rB/P1BRR2k/1Q4b1/1N5q/1rQNB3/2brNb1q/n2n2B1 b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 g5 f4 Kg7 h4 b5 a4 b4 d4 b3 f6+ Kh6 c6 b2 a5 g4 f5+ Kh7 h6 g3 c7 g2 d6 Bd7 Kd5 e4 c8B e3 f7 e2 h5 e1Q f6 Be8 a6 Qb6 d7 Bc5 d8N Qd2 f8B Qbb4 Ke6 Qb3+ d5 Be7 f7 Ba4 Na3 b1R Nc4 Qdd3 d6 Qd4 d7 Qdc3 Qd5 Ba3 Nd6 Qd3 Bb7 Ne7 Nc6 Qbc4 d8R Qcc2 Nc8 Qf2 Rd6 Qa2 Nb4 Qac4 Ne2 g1B Be3 Rb2 Re1 Rb3 Bc6 Qf4 Qb5 Bf2 Bh3 Nd7 Bf5+ Ng6 Rh4 Qh2 Re4 Rg8 Be7 Rg7 f8N+ Kh8 h7 Qd4 Bd8 Nge5 Bb6 Nc5+ Kf6 Qc4 Nd7 Ned3 Re7 Bc1 Ne5 Nb2 Ned3 Nd1 Bfe4 Rb8 Bf5 Rb2 Ree6 Nb3 Bbc5 Rg4 Ke7 Kg7 h8N Rd2 Bh7 Na1 Ke8 Bc2 Ke7 Bg3 Bg1 Rg6 Bce3 Qf4 Ke8 Kh6 Re7 Qg5 Kf8 Rb7 Rf1 Rb6 Rff6 Bf2 Rfe6 Bb2 Bc5 Bf6 Bd4 Qgh4 Bc5 Kg5 h6 Kh5 Be3+ Bg5 Bg8 Rg7 h7 Qh1 Ng6 Q1h2 h8Q+ Rh7 Qc3 Rg7 Bh7 Kh6 Qbc4 Rb5 Q4b3 Ra5 Qbc4 Ra3 Qb5 Rb3 Nh8+
3nN2Q/K3R1rn/1rBNr2r/1Rr5/QNB2p2/4kbbP/2RR3q/2B2NR1 b - - 0 1 illegal: No possible last move
2b1R3/n1Q1r1R1/1R1N2Pq/B1B1B3/Kb1npQNn/3nR1QB/2k1Bn1r/8 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 Kd2 c5 Kc2 h5 Kb3 e5 g4 e4 g6 c4+ Ka4 c3 g5 h4 b6 c2 f6 h3 f5 h2 b7 Rh5 g7 Rh4 f7 Ne7 g8B Qe8+ b5 Rh8 g6 Qc6 f6 Bg4 Qd3 Bd1 Nf3 Qc7 b6 Rh4 Ra3 Qd8 Be2 Rh7 Nbd2 Nd7 b8B+ Qc7 b7 Nf5 Ne5 Ng7 Ng4 Ra7 Qg3+ Ne5 Re3 Nf5 Bb2 Rh6 Bc3 Nh4 Rf1 Be7 f8B h1N Be6 Nf2 f7 c1N+ Kb5 a4 Ba5 a3 Rh1 Nb3 Ka4 a2 Bc8 Rh8 Rh2 Nf5 Rh7 a1N Rg7 Nc2 Bd7 Nb4 Be6 Nh4 Bf5 Nc6 Bd7 Nd8 Bf5 Ne6 Nc4+ Kd7 d6 Kc6 d7 Kd5 Nd6 Ned3 d8Q Qc1 Qb6 Nd8 Qc7 Nc6 Bc8 Ng2 Bd7 Rh2 Bf5 Nh4 Bd7 Bd8 Be7 Qd2 f8Q Qc1 Qff4 Qd2 Ne8 Kc4 Bc5 Be7 d5 Bf8 d6 Nbd4+ Ka3 Bb3 Bf5 Ba4 d7 Bb5 d8R Ba6 Ka4 Bd6 Ba3 Bb4 Nd6+ Kc3 Re8 Kc2 Be6 Bc3 Bc5 Bb4 Qcf7 Qc1 Bbc7 Qh1 b8R Bc8 Rb6 Rb7 Bb8 Na7 Qc7 Qc1 Nf6 Qh1 Bh3 Qc1 Ng4 Qh1 Qc6 Re7 Qc7 Qf3 Nf6 Qh5 Ng4 Qh6 Nc4 Nhf5 Qb7 Nh4 Be5 Nab5 Nd6 Na7 Qc7
2BQ1B1r/bnQB2q1/4pbR1/R4b2/1k1NR1R1/1n2P3/B3KNb1/2r2RNb b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 h4 Qd6 g4 Qb4 g6 Qd6 h5 Qb6 g7 Qc6 g5 Qg6 hxg6 Kd8 Ra5 Kd7 Ra1 Ke8 b4 Kd7 d4 Kd6 e3 h5 b6 c5 b7 f5 b5 a5 b6 a4 Ba3 f4 Ke2 h4 Qc2 h3 Nc3 h2 Ne4+ Kd7 d6 Kc6 d7 Kb5 d8Q c4 d5 c3 d6 Rh4 d7 Nh6 g8B Rh3 g7 Nc6 b8N Nf7 g6 Na5 b7 Nb3 Nc6 Nd6 b8R+ Nb7 Be6 Rh8 g8B Bg7 Nf2 Bd4 g7 Ba7 Bb4 a3 Bfh3 a2 Rf1 a1B Nd4+ Ka4 Qc1 c2 Bgf7 Bc3 g8R Bb2 Rg4 Ba1 Qd2 c1Q Qc7 Qb2 d8R Qc3 Rdg8 f3+ Ke1 Bd7 Rbe8 Rc8 R8g5 Qb2 Rc5 Qc3 Reg8 Qb2 Re4 Qc3 Beg4 Bf5 Rg6 Qb2 Nge2 Qc3 Rhg1 h1B Rg3 Bb2 Ng1 Ba1 Nd1 f2+ Ke2 N3a5 Ba2 Nb3 Nc2 Qg7 Qdd8 Bf6 Nd4 Bd7 Qf4 Rc6 Qfc7 Bc8 Be6 Bd7 R3g4 Bc8 Rce5 Rc1 Bd6 Bd7 Rc5 Kb4 Bf5 Ba4 Bc8 Bd7 Rh4 Bf5 Reg4 Bb1 Re4 Bc2 Bhd7 e6 Rhg4 Bb1 Bf8 Bc2 Ref4 Bf5 Re4 Bg5 Re1 f1B+ Kf2 Bfg2 Ke2 Ra1 Rf1 Bf6 Nf2 Rc1 Ra5+
Bb1B1r2/1Bnb2b1/Q1PNr3/6QB/bp2NR2/1k1BbR2/R3Q2K/n2q1R2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 f4 Kf7 Kf2 g5 Kg2 e5 a4 b5 h4 d5 c4 b4 h6 d4 a6 e4 f6 Ke6 a7 g4 a5 d3 c6 g3 c7 d2 f7 e3 h7 e2 a6 e1B h5 Nh6 c5 Kd5 c6 Rg8 h8Q Qe8 f5 Bd7 c8B Qe4+ Nf3 Qe8 f6 Qd8 Qg7 Qe7 Nc3+ Kc5 Qe2 d1B Nd2 Qe6 Nce4+ Kd4 Nd6 Kc3 Qg5 Qe7 N2e4+ Kb3 Ra2 Nf5 h6 Qe8 h7 Rg6 h8Q Be7 f8R Bc3 f7 Re6 Kg1 g2 Kh2 Qd8 Bf4 Be1 Qa1 Bf6 Be5 Bg7 Bf6 Nd4 Rg1 Qa5 Bd8 Qd5 Rh1 Bf2 Rg1 Nc2 Rh1 Be3 Rg1 Re7 Rh1 Bh3 Bg4 Re6 Bh5 g1B+ Kg3 Bgf2+ Kh2 Be1 Rg1 Bec3 Rg4 Bcd4 Rf4 Bb6 Rf3 Bc7 Rf4 Nd7 Rf3 Nc5 Rf4 Rc8 a8B Bb8 a7 Na6 Bb7 Nc7 a8B Qd4 Qeg4 Qd5 Bd3 Qd4 Qe2 Bg4 Qc1 Na1 Qcc5 Bf5 Qb6 Bc2 Qa6 Bh3 Bb5 Qd1 Bd3 Bg4 Rh8 Bh3 f8R Bf5 Rf1 Bh3 R8f4 Bg4 Bf6 Rf8 Bd8 Re7 Nd2+ Kc3 Be8 Ba4 Rh3 Bd7 Rhf3 Re6 N2e4+ Kb3 Bh5
N2bQnn1/1r4Qp/3RQ2n/1N1K2Pk/B2B2R1/1R1b2r1/1n4N1/N1Qn2Nq b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 e5 Ke4 c5 f4 a5 b4 c4 g4 c3 d4 c2 g6+ Kg7 g5 a4 b6 a3 b7 a2 b5 Qd7 b6 Qf7 d6 Qc7 d7 Qc4 d8R Bc5 Nd2 Nh6 Nb3 Qb4 Kd5 e4 Rh3 e3 Rd6 e2 f6+ Kf8 g7+ Kf7 f5 e1N Be3 c1N Bb5 Ng8 Ba4 Nd7 b8Q Ba6 b7 Ne2 Qc1 Qb6 Qd8 Bb4 b8N Bb5 Nc6 Ba6 Na7 Bc8 Nb5 Qb8 Qb6 Ke8 f7+ Ke7 f8N Kf7 f6 Ba6 Rf3 Nd3 Ne6 Kg6 f7 Nf8 Nec7+ Kh5 Qb7 Ra7 Na8 Nb2 Qd7 Ng3 Qe6 Qb6 Rb1 a1N Rf4 Rd7 Rg4 Nc2 Na1 Nf5 Qe8 Ba5 Qe6 Ngh6 g8Q Rb7 Qg7 Ng8 Bf2 Nfh6 Be3 Nd1 Rb3 Ne1 Bf2 Nd3 Be3 Ng6 f8Q N3b2 Qfe8 Qa7 Ke4 Qb8 d5 Bd8 Bd4 Qa7 Rb6 Qb8 d6 Qc7 d7 Qh2 Kd5 Qh3 Nc3 Bd3 Nb5 Qh4 Rd6 Qh1+ Qe4 Ba5 Qe6 Nf8 d8N Bb6 Nf7 Bd8 Ne5 Rf7 Nc4 Rf3 Ne3 Rg3 Qe8+ Ng6 Na3 Bc7 Kc5 Ne7 Qb5 Rb8 Ng2 Rb7 Qe6 Neg8 Kd5 Nf8 Qbc6 Ba5 Nb5 Bd8 Qce8+
4nQ2/2N2pnB/bNQ2Q1R/QBB2P1n/2b5/r2R1r1B/kQ5n/q4nNK b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 f4 Kd7 Kf2 c5 g4 a5 Kg2 e5 b4 h5 b6 e4 b5 c4 b7 h4 b6 c3 g6 c2 g7 a4 g5 e3 g6 a3 Bb5+ Nc6 b8N+ Ke8 b7 a2 d7+ Ke7 d6+ Ke6 Qf3 e2 Nc3 Qf6 d8Q Nce7 d7 Ra3 Be3 c1N Na6 Nf5 b8Q Nd3 Rd1 a1N Qf8 Nb3 d8Q Nd2 Qa5 Nf1 Nd5 Rh5 Rh3 e1N+ Kh1 Qe5 Nb6 Nf6 g8B Ng7 Qfa8 Rf5 Bh7 Nfe8 Bf2 Nf3 Qc6+ Nd6 Rh2 h3 Rd2 Qe1 Qbb7 Qa1 d5+ Kf6 Bc5 Be6 Rhg2 h2 Nc7 Nde8 d6 Bc4 d7+ Nd6 Nca8 Ke6 d8Q Rf6 Rg5 Rf5 Rh5 Rf6 Qcc7 Nde8 Rh6 Rf5 Qbb8 Rf6 Nc8 Rf5 Qf6+ Kd5 Qbb6 Rh5 Qb2 Rh3 Q6f6 Rg3 Ba4 Ba6 Qcc6+ Kc4 Nc7 Rh3 f5 Nf4 Rd3 Nge6 g7 Nh5 g8B N6g7 Bg6 Rg3 B8h7 Rh3 Rd8 Rg3 Qg2 Rh3 Bb5+ Kb3 Qgd2 Rg3 Qdc3+ Ka2 Rd3 Rh3 Nb6 Rg3 Qc1 Rh3 Kg2 h1B+ Kf2 Nhg3 Bh5 N3h2 Bg4 Bd5 Qcc3 Bb3 Kg2 N3h5 Kh1 Rf3 Bh3 Bc4 Qb2+
1B5q/2B3Nr/4N3/1R2rRr1/Q1bN2Rr/n2pB1P1/n2b2R1/QB1bBK1k b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 b4 d5 c4 h5 f6 Kg6 f7 Kf5 c6 Ke4 c7 a5 g3 e5 b6 h4 b7 d4 g6 h3 b5 a4 c5 h2 g7 a3 c6 a2 f5 Ra4 f6 Ra6 b6 Bc5 f8N Nh6 g8R Qd6 f7 Be6 c8Q Qd7 c7 Nc6 b8B Qd8 b7 Rh7 Be3 Bc4 Qd7 Ra5 c8R Ng4 Bc7 Nb4 Ne2 Kf3 b8B e4 Ne6 Ne5 Rg1 h1B Rg4 Qh8 f8B Be7 Qc1 Bg5 Nbc3 Bh6 Rb1 a1R Bfd6 R1a4 Nd5 Na2 Bb4 Rc5 Ng7 d3 Ndf4 Rd5 Bh3 Rda5 Rg2 Rb5 Bd4 e3 Rf8 Rc5 Nfe6+ Bf4 Nc3 e2 Be3 Rb5 Rf5 Rba5 Kd2 e1R Nb5 Qe8 Re2 Nc6 Bf1 Qd8 Rc5 Be5 Rg6 Ba1 Bg1 Bb3 Rh2 Re4 Be3 Ne5 Ke1 Qh8 Rbb2 Reh4 Rg4 Nc4 Rhd2 Ra3 Be2+ Kg2 Nbd4 Rb5 Rb1 Bc3 Qc6+ Kh2 Kf1 Bf3 Bd1+ Kh1 Bc2 Raa5 Rg2 Bd1 Re5 Rd5 Qa4 Na3 Qb2 Rab5 Qa1 Bc4 Bba5 Rbc5 Rb5 Bb4 Bb1 Be1 Ree4 Rg5 Ref4 Rce5 Bad2 Nc2 Rf5 Na3 Bc1 Ba5 Bcd2 Bb4 Be1 Ba5 B3f2 Bd2 Be3
2bR2KR/2N2Q2/q1n2BbN/6nn/Nr1R2Pr/bB1p1N2/2NQ2n1/2k2B1R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 a5 Ke4 e5 Kd5 h5 g4 a4 c4 d6 b4 h4 f4 a3 c6 a2 c7 e4 c5 e3 c6 h3 g6+ Kf6 g7 e2 b6 e1N b7 h2 b5 Rh4 b6 Nd3 Bb2+ Ne5 Nf3 Bd7 c8B Be7 c7 Rh3 Na3 Rh5 Qd2 Ba4 Be6 Nc6 c8N Bc2 b8R Ra4 b7 Qb6 Rd1 Qa6 Nb6 a1N Rd8 Rh4 b8N Rb4 Na4 Bb1 Bf7 Nc2 Bc3 Ne1 Nc2 Ng2 Ba1 Qb7 Na6 Bf8 Nc7 Qa6 Qc1 Be7 Rd4 Bf8 Be6 Nf7 Qd2 Ng5 Bc8 Kf7 f6 Kg6 f7 Be7 f8Q Kh6 Ne3 Bg6 Qf7 Bf8 f5 Be7 Rg1 h1B f6 Qd3 Qe2 Bf5 Nh2 Na7 Qf8 Rb2 f7 Qa6 Qd2 Ne4 Rd3 Kg5 Ra3 Kf4 Be6 Ng5 Qc1 Bg6 Rd3 Rb7 Qb2 Ne1+ Qg2 Rb8 Nc2 Rb3 Qe8 Rb2 f8R+ Nf6+ Kd4 d5 g8N Rb3 Nh6 Ba3 Rh8 Nh5 Qe2 Bhe4 Nf3 Bef5 Rh1 Rb4+ Kc5 d4 Bb3 Bc8 Kd5 Nc6 Kd6 Nb8+ Ke7 Ng2 Kf8 Nc6 Qf2 Bgf5 Kg8 Bg6 Qf7+ Ke4 Rc3 d3 Rc5 Qa7 Rcd5 Qa6 Bf6 Kf4 Na1 Ke4 Qa2 Ke3 Rd4 Bb2 Ne5 Kd2 Nf3+ Kc1 Nf5 Bb7 Nh6 Ba3 Qe2 Bc8 Nc2 Qa8 Qf2 Qa6 Qd2+
2R1n3/B1BB3K/2B1N1QR/2Q1qn2/1B3P1k/2n5/NQrrpr2/RQ2bb1n b - - 0 1 illegal: No possible last move
N1RB1QR1/5B2/nb2Bnr1/3R3k/5p1q/1P5B/R1RQr1nN/2N1nbbK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg2 c5 d4 f5 e4 Kf7 h4 a5 b3 g4 e6+ Kf6 e7 g3 e8B c4 d6 a4 d7 c3 d5 a3 b6 c2 h6 a2 d6 Rh7 h5 Ra6 e5+ Ke6 b7 Ne7 Qd2 Nbc6 b8N Qa5 d8R Qa4 d7 Na7 Nc3 Rc6 Nf3 Qa6 Nh2 Rd6 Ne2 Qc4 Na6 Nd5 Nc7+ Ke7 e6 Kf6 e7 Qh4 Bg6 Nb5 e8B Re7 h7 Ba6 Na8 Nbc7 h8R f4 h6 Kg5 h7 Re4 Ba3 c1N Rc8 Nf6 d8R Nd3 Bef7 Ne1+ Kg1 g2 Nc1 Re2 Bf5 Bc4 B5e6 Na6 Rg8+ Bg7 h8Q Bb5 Rb1 a1N Rb2 Nac2 Ra2 Ne3 Rcc2 Rb6 Be7 Rc6 Rd3 Bc4 Rc8 Bf8 Bd8 Bc5 Qf8 Bb6 Ng4 Bb5 Rh3 Bc4 Kh2 g1B+ Kh1 N3g2 Nh2 Qf2 Rh6 Qh4 Rg6+ Kh5 Rd4 Rc5 Rd7 Rg5 Rg8+ Rg6 Rd5+ Re5 Bd3 Bb5 Be4 Bf1 B4f5 Re2 Bh3+
1R2b1R1/Q3b3/3bkq1Q/1r3Q1R/Nnp1nQrQ/4NB2/3BR1P1/2nbKN2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Ke7 e4 h5 b4 c5 d6+ Kd7 e6+ Ke8 g6 a5 b6 f5 g7 c4 d7+ Ke7 d5 a4 b7 f4 e5 h4 b5 a3 b6 h3 Nd2 a2 Qc2 h2 Rb1 a1B Qf5 f3 Be2 Qe8 Nf1 Bc3+ Bd2 Nc6 b8Q Bb7 Qa7 Bc8 b7 Bb2 b8Q Nf6 g8R Rh3 d8N+ Qd7 Nb7 Qd8 Nc5+ Bd7 Na4 Ba3 Ne3 Rg3 Rb6 Nb4 d6+ Ke8 e7 Kf7 e8R Be7 Qbc7 Rg4 Rb8 Bb5 d7 f2+ Kd1 f1B Ke1 Bd6 Bf3 Be2 Re6 Bd1 Ne2 Qe7 d8Q Bd7 Ng3 Be8 Qg5 Ne4 Ngf1 Nf2 Qh6 Ne4 Qab7 Ra5 Qa7 Rb5 Qca5 Qd7 Qdh4 Qe7 Q5c7 Ng3 Qcc5 Ne2 Qd5 Nc1 Qd3 Bc7 Qf5+ Qf6 Rc6 Ke7 e6 Rf4 Rc5 Rg4 Re5 Kd6 e7 Bd8 Rg1 h1N Qhf4 Nf2 Rh1 Ne4 Qhh6 Bh5 e8Q Be7 Qf7 Bg6 Qfh7 Be8 Rh5 Rb6 Rh3 Nc3 Q6g7 Nba2 Nd5 Rb5 Qgg5 Bc5 Qhh6 Nb4 Rh2 Bd4 Re4+ Be5 Re2 Ne4 Rh3 Rg3 Rh5 Rg4 Qfg6 Ke6 Nde3 Bc7 Qh4 Bcd6 Qgf5+
1Q1B2B1/2Q2rq1/b4N2/knr2PQB/1bQN4/3Nb1pK/b5Rn/1R1Q1nN1 b - - 0 1 illegal: No possible last move, all moves rejected
3N2b1/2n2rnN/Q4RK1/Q4PN1/2N1R1B1/QpN1b1n1/5BnR/r2R1qrk b - - 0 1 illegal: No possible last move, all moves rejected
6Q1/1n2R2r/r4n1b/2N1pRqR/rR5R/1KBb1P1r/1Q2Q2N/N2k1nQB b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 d4 Kf6 Kd2 e5 Kc2 g5 b4 c5 h6 a5 d6 a4 b6 c4 h5 a3 b5 g4 d5 c3 d7 g3 d6 g2 h7 a2 b7 Ra6 b6 Ra7 h6 Qc7 d8Q+ Qe7 d7 Bg7 Na3 Ra4 Rh5 Rh4 Bd2 Na6 b8R Bf8 b7 Nc5 Qb6+ Qd6 d8N Bd7 Nf3 g1R Nh2 Qc6 f3 Rb4 Qe2 Rh1 Bg2 Ra4 Ne6 Qc7 Re8 Bb5 b8Q Qd8 Re7 Nb7 Rb1 a1R Qg1 Bd3+ Kb3 c2 Bc3 Bg7 Nc5 c1N+ Kb2 Bf8 Nc2 Nb3 Rh4 Kg5 f6 Bg7 f7 Nd2 f8R Nf1 Kb3 Nf6 Rb2 R1a2 Na1 Ra6 Rh5+ Kf4 Rff7 R2a4 Rf8 Rg8 h8Q Kg3 h7 Bh6 Rff7 Rg7 Qg8 Kf4 h8R Rh7 Ng4 Rh3 Nh2 Ra2 Bh1 R2a4 Q8g2 Qg8 Qg2f2 Qg2 Qg8 Qg5 Rb1 Rg3 Qb2 Rh3 Qfe2 Bf8 Qbc2 Rg7 R8h6 Rh7 Kb2 Bf5 Qb3 Ng4 Rh4 Bg7 R6h5 Bh6 Qge3+ Kg3 Qa3 Bd3 Rf5 Nf6 Ka2 Rc6 Rbb4 Rca6 Qd1 Re6 Qd4 Rea6 Qg4+ Kf2 Kb3 Qd2 Qc2 Ke1 Qab2 Ke2 Qg1 Ke1 Bd4 Qg5 Qcg2 Kd1 Bc3 Ne8 Qg2f2 Nf6 Qfe2+
Q1rk4/K3bB2/1Rb2RQ1/2pR1BNn/2B2nPR/6b1/NqnR1B2/Qn5r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 Ke3 f5 Kd4 a5 e4 h4 b4 c6 g4 h3 e6 h2 e5 a4 b6 a3 b7 f4 e7 a2 Kc5 f3 d4 f2 b5 Bd7 g6 Rh3 g7 Rb3 d6 Raa3 b6 Ra6 d5 Qc7 Nc3 Bf5 d7+ Kf7 d8R Ra8 d6 Ke6 e8Q+ Qe7 Nf3 Rba3 Qg6+ Qf6 Be3 Ne7 d7 Be4 Bc4+ Bd5 Qdb1 f1N Bf2 R3a7 Qb2 Nd2 Raf1 a1B Na2 Ra6 Qbb1 Bc3 Qa1 Nb1 Re8 R6a7 d8R Ra4 Rd1 Be1 Rd2 R4a7 Rf1 h1N Rd7 Ng3 Rh1 Nh5 Rh4 Na3 Red8 Nc8+ Rd6+ Ke7 g8B Nb1 e6 Qb2 Bf7 Ra3 Ng5 Rh3 Qg8 Be4 Qg6 Rh1 R6d5 Bf3 Rf5 Bg2 R8d5 Be4 Rf6 Bf3 Be8 Bg2 Bd7 Kd8+ Rd6 Ne7 R6d5 Nc3 Kd4 Na6 b8Q+ Nc8 b7 Nb4 Qa7 Ne7 Kc5 Nb1 Kb6 Rc8 b8R c5 Qa8 Nc2+ Ka7 Bf3 Rb6 Be4 Qh7 Ng6 Qg7 Ngf4 e7+ Kc7 e8B Kd8 Qg6 Be7 Bf7 Bg2 Bd4 Bg3 Bf2 Bf3 R5d3 Bb7 Rd5 Bc6 Bf5+
qN4k1/1B5r/b2bR3/1QpN1N2/1Q2RP2/2Br3n/1KBnQ3/Qb2bQNr b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 e5 g4 a5 d4 h5 Kd2 c6 Kc3 h4 d6 a4 g6+ Kg7 b6 a3 f6+ Kh6 d5 e4 b5 h3 d7 h2 b7 a2 d6 e3 f7 Kg7 b6 e2 g5 e1B+ Bd2 Be7 Kb2 Kf8 Bd3 Na6 b8Q Qc7 d8Q+ Kg7 d7 Rh6 f8Q+ Kh8 b7 Qa5 Qe2 Nc7 Bc3+ Bf6 Bc2 Rh4 Qb4 Bg7 Qf6 c5 d8Q Ra7 Qdd3 Rh7 Qdf3 Rh3 Qff1 Rd3 Qfe5 Bf6 g7+ Kh7 Qed4 Be7 Qde5 Nf6 g8B+ Kg7 g6 Bd6 Bd5 Ne6 Qb5 Kf8 g7+ Kg8 Be4 Ng5 Qd4 Kf7 g8N Nh3 Nh6+ Kf8 Bg2 Ne4 Nf5 Nd2 Qa8 Kf7 b8N Ba6 Qdb4 Kg8 Bb7 Qa4 Na3 Qa5 Nc4 Qa4 Rd1 a1R Nce3 Qa5 Nd5 Qd8 Bc8 Rh7 Bb7 Qe8 Qa7 Qf8 Nc6 Qa8 Nb8 Bf2 Re1 Rc1 Nf3 Bg3 Rg1 h1B Rg2 Rd1 Ng1 Ra1 Rf2 Be4 Rf3 Bh4 Re3 Bf2 Ng3 Bg6 Nf5 Rc1 Re4 Bh4 Qh2 Ra1 R1e3 Be1 Qhe2 Bf7 Rd4 Be7 Nf3 Bd6 Nb6 Bf2 Qfe1 Ba2 Nd5 Rc1 Re7 Bb1 Re6 Bg3 Q1f2 Rh1 Ng1 Bh4 Qff1 Be1 Qab6 Nf2 Q6a5 Nh3 Qa1 Be7 Rc4 Bd6 Rce4
Nn3R2/2r2Rk1/1Q2K3/1P2B1Nn/6Bb/bQn2RR1/p1nR3N/NbQ3rq b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 a5 Kc4 c5 b4 e5 d4 g5 h4 g4 f4 g3 d6 e4 Kd5 a4 h6 g2 b6 c4 h7 a3 d7 e3 f6 e2 b7 e1B h5 a2 f5 c3 h6 c2 b5 Bg7 Bb2 c1N Nd2 Na6 b8Q Nb3 Qc1 Qf8 d8R Qe8 Rh3 Kf8 f7 Nbc5 Rg3 Nb7 Ngf3 g1N Nb3 Bd2 Bh3 Bd7 Bg4 Be1 Nh2 Na5 Qb6 Ke7 f8R Bf2 Rf6 Qf8 Rb1 Nc6 Na1 Ncb4+ Ke5 Nc2 d5 Ne3 Bd4 Qe8 Rb3 Nf1 Rbf3 Nb8 Bc3 Qf7 Bd4 Be8 d6+ Kf8 d7 Ra7 Bb2 Ne2 Kd6 Ne7 Be5 Rg8 h8Q Nd5 h7 Rb7 Rg2 Ndf4 Rgg3 Ne6 Kd5 Ne3+ Kd6 Nc2 Kd5 Bh6 Qg7+ Ke7 h8N Rc7 Qh7 Rg5 Qg8 Qh5 Nf7 Rg6 Ng5 Bf8 Rc8 Qh4 d8N Ng7 Nde6 Nh5 Rd8 Rg7 Rd6 Bg6 Rd8 Qh3 Rd6 Qf1 Rd8 Qh1 Rd6 Rc4 Nc7 Bh7 Na8 Rc7 Rd7+ Ke8 Ke6 Nc3 Rd2 Rg6 Rg2 Bh4 Rgg3 Rgg7 Rh6 Bg6 f6 Be4 Qh7 Bb4 f7+ Kf8 Rhf6 Ba3 Qg6 Rg8 Qf5 Kg7 f8R Nb4 Qf4 Bb1 Qc4 Nc2 Rc8 Rd8 Qb3 Rdd7 Rcf8 Rd8 Rdf2 Rd1 Rd2 Rg1 R6f7+
4nB1B/2b1RbQ1/1QRnR3/P2rrBQ1/pn2N2k/n2N4/rq2RR2/Q3K3 b - - 0 1 illegal: No proof kernel
1nn3RB/2q1NBK1/3RRp2/r1N3N1/N5b1/1P2Q3/k1r1QnN1/nrR1b2Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 a5 Kd4 g5 h4 c6 e4 a4 h6 a3 b6 a2 b3 g4 d6+ Ke6 h7 g3 b7 g2 d7 Ne7 h5 Bh6 Bc4+ Nd5 Bb2 Bf8 h6 Bb4 Nh3 g1R Qe2 Qg8 d8R Re1 Rg1 Bd7 Nc3 Qg5 Na4 Be8 Rd6+ Ke7 e6 Qf5 e5 Rg8 h8N Na6 b8N Qc2 h7 Nac7 Nf4 Qf5 Ng2 Nb6 Nd7 Rb1 Ndc5 Qc2 d3 Bd7 Ng6+ Kd8 h8N Nc8 Ne7 Be1 Ke4 Rg7 Kf5 Ra5 Kf6 Na6 d4 Kc7 d5 Nb8 Bc3 Rg3 Bd4 Rc3 Kg7 Rb2 Rc1 a1N Neg6 Rb1 e7 Bh3 e8Q Bg4 Ne7 Qh7+ Kf6 Rc2 e6 Qh2 Kg7 Qg3 Qg8 Qf4 Qh7 Qg3 Qh1 Qh2 Nd3 c5 Ra6 Qg3 d6+ Kb7 d7 Qc7 Rb6+ Ka7 Bd5 c4 d8R c3 Rc6+ Kb7 Be5 Ka7 Rdd6 Kb7 Ndc5+ Ka7 Bf4 f6 Nf7 Ra2 Qe3 c2 Bh6 Rab2 Ng5 Ra2 Rd1 c1N Bc4 Nd3 Rc1 Rab2 Kf8 Nf4 Qe2 Nc2 Ng6 Bh3 e7 Na1 e8Q Bb4 Rd2 Be6 Ne3 Nc2 Nh3 Nd3 Bg7 Na1 Bh8 Nf2 Rb6 Bd7 Bf7 Rc2 Rg4 Be6 Ng2 Bf5 Rdd4 Be1 Q8e3 Be6 Rg5 Bf5 Re6 Bg4 Nd3 Kb7 Ne7 Ka7 Rdd6+ Kb7 Nc6 Ka6 Rg8 Kb5 Ne7 Bc3 Nde1+ Kb4 Ng5 Ka3 Nd3 Be1 Kg7 Ka2 Ndc5
1BNRQN2/3R3K/1Q2p2B/1n3B1b/1rP1Bn1N/q1r1Q1b1/Q1b1B3/kbr5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 h5 Ke4 a5 b4 d6 c4 h4 f4 a4 g4 a3 c6 a2 g6+ Kf6 b6 h3 c7 h2 g5+ Kg7 b5 Qd7 b7 Ra7 b6 Ra6 Na3 Rh5 f6+ Kh8 g7+ Kh7 f7 Kg6 Be2 Rh4 Nb5 Rh3 Na7 Ra4 Nf3 Nc6 b8Q Rb4 b7 Nd4 Bd2 Qa4 Qb3 Be6 c8B Qa3 Rhd1 h1B Rab1 a1R f5+ Kh7 f6 Kg6 Qc7 Bg4 b8B Nb5 Qb6 d5+ Ke5 d4 Nh4+ Kh5 g6 d3 Bh6 d2 Bd7 Rc3 Nc8 Be4 Bc6 Bc2 Be4 e6 Kf4 Bd3 Rb2 Be7 f8Q Rac1 f7 Nf6 g8Q Bb1 g7 Nd5+ Ke5 Bc5 Qe8 Nf4 Kf6 Bf2 Rc2 Bf3 f8N+ Kg4 Rb2 Kg3 Ra2 Bh5 Kg5 Qb2 Ra7 Qa3 Rb7 Bc5 Re7 Kf2 Rc7 Ke3 Qgf7 Ng6 g8B Bd4 Qfe7 Nf4 Bgh7 Bc5 Bhf5 Bd4 Re1 d1B Qec5 Kd2 Rh7 Bf2 Kf6 Bd3 Kg7 Bb1 Kh8 Bg3 Re7 Bdc2 Kh7 Rd1 Rf1 Kc1 Rf3 Qa8 Rd3 Qa3 Rd8 Rh1 Red7 Rg1 Qa4 Kb2 Qe3 Rc1 Qb3+ Ka1 Qa2+
2rnBRB1/k4r2/1b1P1Qn1/8/b2R1p2/1NBQ1n2/Qn5r/KNNB1qNN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 a5 e4 c5 d4 Kc7 Kd2 Kb7 Kc2 f5 Kb2 g5 b6 g4 d6 a4 e6 c4 b5 g3 h6 f4 e5 g2 h7 Nd7 h5 Ne7 d5 Nb8 h6 Ng8 e7 Qc7 e8B Bh3 d7 Qd6 d8Q Nc6 e6 Rb8 e7 Qb4+ Qb3 Qe1 Bh5 Bc8 e8B Qg3 Qa2 Nf6 Bd2 Qg6 Bc3 Ng8 Bd1 Ka8 b7+ Ka7 b6+ Ka6 d6 Qd3 Qf6 Ra8 b8Q Qf3 b7 Nge7 Bfe2 Rg8 h8N Bd7 h7 Qf1 Ng6 Rg7 h8N Nd8 Ne5 Rf7 Nd3 Bg7 Nc1 Ng6 Rh3 Bc6 Rd3 Bb5 Qc7 Ka7 Rd4 Rc8 Qd7 Bc6 Qdf5 Bd7 b8N a3+ Kc2 Bb5 Nd7 Bc6 Qd3 Ba4+ Qb3 a2 Kb2 Bh6 Bf3 Bg5 Bd5 Bh4 Qa3 Bf2 Nc5 Be3 N5b3 Bf2 Nge2 g1N Ng3 Nf3 Nh1 Bg1 Re4 Bb6 Rd4 Rb7 Bg8 Rd7 N1d2 Rf7 Rb1 a1R Qa2 Rh7 Nf7 Rh6 Ka3 Rh2 Rb2 Rb1 Ng5 Ra1 Nh3 Rb1 Bb4 c3 Ng1 c2 Bc3 Ra1 Na5 Rb1 Rbb4 Rb2 Nab3 Rh7 Nb1 Rf7 Nce2 c1N Rbc4 Rb7 Rc7 Rd2 Rf7 Re7 Rf8 Rf7 Qc4 Nd3 Nec1 Rh2 Qb5 Nf2 Kb2 Nd3+ Ka1 Nb2 Qd3
r1R1B1kR/1Q2r2n/1Qnp1Q1n/BK2Pb2/6qR/r2rbBB1/1NRBN3/8 b - - 0 1 illegal: No possible last move, all moves rejected
4N3/2BK1Br1/2P2Q2/b2bN1nr/qBQ2n1r/2bQ1bpB/5Q2/RRk2N1Q b - - 0 1 illegal: No possible last move, all moves rejected
1b3n2/5b2/bP3N1n/2N1kBR1/2B1pB2/qRK5/QQN3r1/1BbRrBnR b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 g4 e5 f4 a5 c4 h5 b4 d5 b6 a4 b5 a3 c6 a2 c7 h4 g6+ Kf6 g5+ Kg7 c5 h3 b7 d4 c6 h2 Nc3 d3 Nf3 Nf6 Na4 Ra6 Qc2 Bc5 Ne1 Qd5 Kc3 d2 Qb2 d1B Nc2 Ng8 f6+ Kf8 f7 Ke7 f8R Kd6 f5 Nh6 f6 Rh7 f7 Bf2 g7 Ke6 g8N Nd7 b8R Ba7 g6 Qd6 g7 Bh5 Bf4 e4 Rd1 a1B Nf6 Rb6 g8B Ba6 c8B Rg7 c7 Rg2 Nc5+ Kf5 Rb7 Bb8 Rd8 Qe7 f8Q Bf7 Qg7 Qf8 Qg3 Rd6 Qf2 Rd2 Re8 Re2 Re6 Re1 Re5+ Kg6 Rb6 Qe7 Rh5 Nf8 Bf5+ Kg7 c8B Qd6 Rg1 h1N Bce6 Ng3 Rgh1 Qe7 Bec4 Ne2+ Kb4 Ng1 Kc3 Be8 Bgd5 Bf7 Ba2 Qa7 Bdc4 Qe7 Bb1 Qa7 Kb3 Qe7 Qa2 Bb2 Qd4 Bc1 Qdb2 Be6 Kc3 Kf7 Nb3 Qa3 Rg5 Bd5 Rc6 Ke7 b6 Bf7 Rc5 Ba7 Rb5 Bb8 Bd2 Kd6 Rb4 Qa5 Nc5 Qa3+ Rb3 Ke5 Bf4+
N1BQ1N2/1b4rp/4n2Q/4k1q1/Bb4Pr/2N2RNb/1B1Q3r/K1Rr1NBn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 c5 d4 f5 Kd2 a5 Kc3 a4 Kb2 f4 g4 f3 b6 c4 d6+ Ke6 d7 f2 b5 Qc7 d8Q Qb7 g6 Bc5 g7 Qc7 b7 Ne7 g8N Nd7 b8Q Ba6 d5+ Kf7 b6 Qc8 e6+ Kg7 b7 Bb5 d6 Bc6 e5 Nd5 e7 Nb4 e8B Nf8 e6 Be3 d7 Na6 e7 Nb4 Nf3 Bd2 Qf4 Ne6 b8B Bb7 Nh6 Qc5 Rh3 Rg8 Ba7 Qg5 Nf5+ Kf6 Nc3 Rg7 Nh2 a3+ Kb1 Be1 Qdd2 Nd3 Bb2 Rb8 Be2 f1B Rf3 Bh3 Bg1 Nf2 Nf1 Nh1 Ka2 Rc8 Rc1 Rc6 Kb1 a2+ Ka1 Rc7 Qfe3 Rc6 Qeb6 Ke5 N5g3 Rd6 Bd1 Rd4 Qc6 Re4 Bg6 Re2 e8N Rf2 Nc7 Rh2 Qg2 Bd2 Na8 Be1 Ba4 Bd2 Nb5+ c3 Bf5 Be1 Ba3 c2 Nc3 Bd2 Bb2 Be1 Rb1 c1R Qd2 Rd1 Rc1 Nf8 Qh6 Ne6 Qb6 Bf2 d8N Bc5 Bd7 Bf8 Bc8 Bb4 Bc2 Bg2 Bb3 Rh4 Ba4 Bh3 Qc2 Rd2 Qd1 Re2 Qd2 Rh2 Qe2+ Be4 Ba3 Nc5 Ne6 Rg6 Nf8 Ne6 Qd8 Rg7 Qc2 Bb7 Qcd3 Rd2 Q3d7 Rd1 Kb2 a1R Qd3 Rb1+ Ka2 Rb2+ Ka1 Rg2 Bb2 Rh2 Qd2
Q6b/N1QNKb1p/1N2N3/2B1P1R1/5Q2/1bBbR1q1/k1nBnr2/2rrN2B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 Ke6 Kg4 d5 e4 a5 c4 f6 b4 a4 g6 a3 b6 d4 c6 a2 b5 d3 c7 d2 g7 Qe7 b7 Nc6 b8B Ra6 c5 Ra5 b6 Ra7 b7 Qd6 Rh3 f5+ Kg5 f4 g4 f3 Bg2 f2 Bh1 f1B Nc3 Ba6 Na4 Bd3 Nb6 Qd7 Nf3 Be2 Ne1 Qd6 Re3 Bb5 Qa4 d1B Bd2 Ra8 Ba7 Na5 b8B Bba6 c6 Bcb7 c8Q+ Qd7 c7 Nf6 g8N Nd5 Nf6 Nc4 Qd8 Bg7 c8N Bc6 Qc7 Qd6 Nfd7 Na3 Rb1 a1R Rb5 Rc1 Qd4 Nf4 Qb4 Kf7 e6+ Kg8 e7 Kf7 e8N Ke6 Rf5 Nc2 e5 Ne2 Qf4 Rf8 Bc3 Rf6 Bd2 Bh8 Ng7+ Kf7 Ne6 Qd3 Qb7 Bd5 Bd6 Qc3 Bb4 Bd3 Qc7 Qb3 Bbc3 B5c4 Bb8 Raa1 Na7 Qa3 Kh5 Bb3 g5 Ke7 g6 Rf8 Nd4 Bf7 Kg5 Rab1 g7 Qb3 Ndf3 Ke6 g8Q Qa3 Nbc8 Kd5 Nd4+ Be4 Ne6 Ra1 Qa5+ Kc4 Bd6 Kb3 Ncb6 Ka2 Bc5 Bd3 Qg7 Rab1 Kf6 Be4 Bb2 Rg8 Ng5 Bh5 Nb5 Ncd4 Nb8 Rc4 Rd3 Ba4 Rh3 Rd1 Ne6 Rcc1 Qa8 Nc2 Na7 Qc3 Rd3 Bb3 Rh3 Qe3 Bbc3 Bd3 Rf3 Qg1 Re3 Qg4 Qc4 Rd8 Rg5 Qg3 Qce4 Rd4 Qf5 Rh4 Qfe4 Rh2 Qf4 Bg4 Kf7 Rf2 Ke8 Bgf5 Qc7 Bg6+ Ke7 Bf7 N8d7
1R1NN1B1/1nn4p/4rq2/P1r2B2/R1bk4/1nbNBr2/N6B/1KnQQRB1 b - - 0 1 illegal: No possible last move, all moves rejected
1q3RQ1/4rp2/1bB2K2/rR2NPQ1/Qrn1B2R/Nr1B2n1/1k1B1Rb1/3n1B2 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 g5 f4 g4 c4 d6 f5+ Kd7 e6+ Ke7 h6 Kf6 h5 a4 h7 a3 e7 a2 e8B g3 b6 g2 c6 Ra4 c7 Ne7 h6 Be6 c8B Qc7 b7 Bd7 Bd2 Ra3 c5 Be6 c6 Ng8 Nf3 g1R Rh4 Ra5 Qa4 Rg3 Na3 Nd7 b8R Nb6 Ne5 Rb3 Ba6 Nc4 Rb5 Qb8 c7 d5+ Kf4 d4 c8Q d3 e4 Bb4 Bc6 Bd5 Qd8+ Be7 Re1 a1R Re2 Re1 Rf2 Re3 Qb6 Re2 Qe3 Bc5 Bcb7 Bb6 Bc6 Ke7 Kg5 Nf6 Qf4 Rd8 h8Q Kd6 h7 Nh5 Qg8 Ng3 h8R Rd7 Kf6 Rb7 Qfg5 Re3 Rb4 Kc5 Rb5+ Kd4 Rb4 Re7 Bcb7 Ba7 Q8g7 Bb6 Nd7 Re5 Bc1 Kc3 Rf8 d2 Qg8 d1N Bd2+ Kb2 Bb5 Re8 e5 Bg2 e6 Nd6 e7 Re2 Bd3 Re4 Rb5 Rg4 Ne5 Rgb4 Bd5 Nc4 B5e4 Rc8 e8B Rc7 Bd7 Rca7 Be8 Re7 B8c6
R2RKB2/2QQp3/2Nrn2r/1NR1BR2/N2PN1B1/rNb2r2/4bkq1/2b2n2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Kg5 Kd4 Kg6 c5 Kf7 g5 f4 a5 b4 a4 h4 g4 f6 c4 d6 c3 d7 g3 f5 g2 b6 c2 b5 a3 h6 a2 h5 Ra3 b7 Rc3 b6 Bg7 h7 Rd3 h6 Qc7 d8R+ Bd7 Rh5 Na6 b8Q Rh3 b7 Qg3 Ne2+ Ke4 Nbc3+ Kf3 Na4 g1B Qc7 Bc6 b8N Ba7 Nd4+ Kf2 Be2 Qf4 Bb2 c1R Bg4 Bh1 Nbc6 Nb4 Ke8 Nc2 f7 Qg3 f8R Bb6 f6 Ne3 f7 Qg2 Rc5 Rf3 Nb3 Nf1 Be5 Ba5 d4 Bc3 Qd3 Bf6 Qf5 Bg5 Qfd7 Re1 Rd1 a1R Rc1 Ra3 Ra1 Ree3 Ra2+ Kg1 Rf2 Rf6 Rf5 Rf3 Rb8 Qh3 Kd8 Rf4 Ra8 Bf3 Re8 Be2 f8B Rd6 Qb7 Nf6 Qc7 Rg8 h8N Nd5 h7 Rh6 Nf7 Rf3 h8N Rgg6 Nd6 Qg2 Ne4 Bc1 Nf7 Nf4 Nfd6 Re6 Nb5 Ref6 Qdc8 Re6 Kd7 Ref6 Rd8 Rd6+ Ke8 Ne6 Ned2 Kf2 Q7d7 Rh8 Qcc7 Rh6 Ne4+
QB1b3b/b1Nrp2N/3qP2B/N1B3NK/n7/2n1RBBb/2Q4k/RrQ3n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 Kf2 Kd7 Kg3 Kd6 Kh4 Ke5 e4 Kf4 b4 a5 h6 c5 e5 f5 d4+ Ke4 g6 a4 e6 c4 d6 c3 d5 a3 b6 f4 b7 a2 g7 c2 b5 f3 b6 f2 d7 Qc7 d8N Rh7 d6 Na6 b8B Nf6 g8N Bg7 d7 Nd5 b7 Ne3 Nh3 Bf8 Nf6+ Kf5 Nc3 Qb6 Nc6 Nc5 d8Q Qa6 Bg3 Ra7 b8B Bg7 Be2 f1N Nb5 Nd2 Ng5 Bh8 Re1 Bb7 Kh5 Nd5 h4 Nc3 Bf3 N5a4 Na5 Qd6 Bf2 Kf4 Qc7 Be4 Ba3 c1B Qc2 Bf5 Re3 Bh3 Bc5 Rb7 Qc6 Rd7 Nc7 Ba3 Qc1 Bb4 Qa8 Rf7 h7 Rf8 Qa6 Rfd8 Qd3 Rg8 Qdc2 Rg7 Bg1 Kg3 Bf2+ Kh2 Qd3 Rg8 Qdc2 Bg7 h8Q Rc8 Nfe4 Bd4 Nf6 Rf8 Nfh7 Rf5 Rb1 a1B Qg8 Bb2 Ra1 Rf4 Qc8 Rg4 Qa6 Rg1 Qa8 Rf1 Kg6 Re1 h5 Rd1 h6 Rh1 Be2 Nf3 Kh5 Rf1 Bd1 Ng1 Bf3 Re1 Nf6 Rd1 h7 Rf1 h8B Rd1 Nb7 Ba5 Nfh7 Bb6 Na5 Rf1 Ne8 Bd8 Bg7 Re1 Bh6 Bh8 Q1d2 Rb1 Qdc1 Bd4 Ba3 Ba7 Bc5 Ne4 Nc7 Bh8 Bh1 Nec3 Bc6 Rb4 Bf3 Rb1 Bg3+
qBn5/r1bnpQ2/1P5Q/nKR1BRQ1/2N2r2/k3Q1R1/B3b1r1/Q2R2Nn b - - 0 1 illegal: No possible last move
4Q3/n2p1R1r/1QNBnbN1/1Qb1R3/1RBr2qk/Bb2B2P/1r5Q/3b1KQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 e4 Ke7 b4 a5 c4 f5 b6 g5 h6 f4 h7 f3 b5 g4 b7 g3 b6 g2 e6 Kf6 e7 a4 e8Q a3 c6 a2 c5 Nh6 e5+ Kf5 h3 Na6 b8B Qg5 e6 Bb7 e7 Nb4 c7 Bd5 c8Q Qg8 b7 Bc6 Bc4 Ra6 Ba3 Kg5 Qc7 Ra7 Nc3 Qd5 Nge2 g1B Nd4 f2+ Kf1 Qf7 Nd5 Ba4 c6 Qg8 Qb6 Kh4 c7 Nf7 c8Q Bb3 Nf4 Bg7 Rb1 a1R Bd6 Ra4 b8Q Ra2 Qcc5 Rb2 Qcb5 Ng5 Nc6 Ne6 Rh2 Bc3 Rg2 Bd4 Rg7 Bf6 Rf7 Qg4 Qc1 Rg8 h8B Rg7 Q8c7 Rh7 Bg7 Bd1 Bh6 Bb3 Nh5 Bd1 Be3 Bb3 Nf4 Bd1 Ne5 Nc6 Qcb8 Na7 Nc6 Rd2 Rb4 Rd4 Bb2 Ra2 Ba3 Rb2 Qb1 Bb3 Qg6 Qh5 Qg2 Qg4 Qh2 Bd1 Qg8 Bb3 e8R Nd8 Ne6 Qe2+ Kg2 Rd5 Bc1 Qd1 Nf4 f1B+ Kh1 Bf2 Qgg1 Qg4 Re5 Bc5 Be3 Ne6 Qf8 Be2 Qe8 Qf5 Kg2 Qg4+ Kf2 Bed1+ Kf1 Rd4 Ng6+
1RBN4/B1p1Kn1r/b1RP2r1/1Qb4q/2R1N1Nr/2BBb3/kQ6/1R1rn2B b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 g4 h5 f4 a5 d4 h4 g6 e6 g5 h3 f6 h2 f5 a4 f7 a3 d6 a2 b6 Bh6 f8Q Ra3 f6 Rf3 g7 Rd3 d7+ Qe7 d8N Qc5+ d5 Qe7 b7 Rb3 d6 Qe8 f7 Qa4 g6 Bg5 Qd5 Rh7 Nd2 Be3 Bd3 Bc5 Ne4 Qd7 Nh3 Bb6 Bd2+ Ka4 Rac1 a1R Bc3 Ba5 Nhf2 Qb5 Ng4 Nh6 Kf6 e5 g8B Bb4 g7 Nd7+ Ke7 Nc5 b8B Ba6 Ba7 Ba3 Rhe1 h1R Qb7 Rh5 Qe8 Rh4 f8R Nf7 Rc2 Rb4 Rb1 Kb3 Qd7 Qa5 Qdb5 Ka2 Rcc1 Rc4 b4 R4h6 Q7b6 Rg6 Qb7 Nh6 Be6 Nf7 Bc8 Rd4 Bc2 Nd3 g8B Ne1 Bd3 Rc4 Q5c6 Qd5 b5 Bc5 b6 Rb4 Qb5 Rd4 Ng3 e4 Re8 e3 Ne4 e2 Qb8 Rc4 b7 Qh5 Rf8 Nh8+ Rf7 Ra4 Rg7+ Rc4 Bd5 Nf7 Rg8 Nc2 Rh8 e1B Bc6 Bef2 Rg8 Rgh6 Rg5 Bce3 Rc5 Rg6 Bd5 Ne1 Rc6 Bg3 Ng5 Bh2 Bh1 Bhg1 Ne4 Rb4 Bd2 Bc5 Rc4 Bge3 Bc3 Ra4 Qa8 Rb4 b8R Ra4 Qab7 Rb4 Rb3 Rd1 Rb1 Rb2 Qb4 Rh2 Q7b5 Rh4 Qb2#
rR1n2k1/p2Bb1QN/b1Pn4/3R3K/NB2q3/2Qn3R/Nr4r1/NNR1r1B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 e5 Kg4 d5 h4 g5 b4 d4 f4 d3 c4 e4 c6 d2 b6 e3 h6 e2 c5 e1R b5 Re8 b7 Be6 b6 Qd6 h7 Qd8 c7 Bd7 c8N Ba4 c6 Bb3 h5 Qf6 h6 Qb2 f6 Re5 f5 Bc4 Nf3 Qc2 Rh5 Ne7 Bh3 Bf1 Ne1 Na6 b8R Bb5 b7 Bd3 Qf3 d1R Nb6 Ng6 Be3 Bg7 Na4 Rd5 Bg1 Rg8 h8Q Nf8 h7 Nc7 Qg3 Ba6 Qc3 Qd3 Nc2 Nb5 Qe1 Rd8 Qc3 Ke8 f7+ Ke7 Qa3+ Nd6 Qc3 Bf6 Qg7 Ne6 h8R Re1 f8N+ Ke8 R8h6 Be7 f6 Qg6 Nh7 Qe4+ Kg3 g4 Kh4 Rc8 Rd5 g3+ Kh5 g2 Bf5 Nd8 Be6 Bf8 f7+ Ke7 Bd7 Rc7 Bd4 g1N Bc5 Nf3 Bg1 Nd2 Kg5 Rc8 Rh3 Nb3 Kh5 Rc7 Rc8 Nc1 b8N Bc4 Na6 Nd3 Rb8 Rb7 Nab4 Ba6 Na2 Rb2 Qgd4 Rg2 Qh8 Bg7 f8B+ Kf7 Be7 Bf8 Qhe5 N6b7 Bb4 Nd6 Nba3 Bb7 Rc1 Kg8 Nb1 Be7 Na1 Ba6 Qg7+
r4q1b/2nn1QNQ/r1q2r1B/2R2B2/2Nk3N/1b1R3p/NR1RPKNB/4r3 b - - 0 1 illegal: No possible last move, all moves rejected
R1qBb1R1/K2n3k/N1rQR1rQ/b1B4q/4Q1B1/1b2P2p/5n1B/1B2Nb1R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 d5 Ke3 f5 Kd4 Kf7 b4 Kg7 c4 a5 g4 h5 c6 a4 b6 a3 c5 f4 g6 a2 c7 h4 b7 h3 c6 f3 e3 f2 b5 Bf5 c8Q Qh4 c7 Nd7 b8B Ne7 b6 Qg3 b7 Be6 g5 Bg4 e6 Nf6 Kc5 d4 Kb6 d3 Nd2 Bf3 Nb3 d2 Qe8 Bh5 c8B Rh6 Bd3 f1B Bc7 Qf4 b8B Nh7 Nc5 Qe4 Nf3 Bg2 Bd8 Nf6 Bh2 Qh4 Ne1 Ne4 Na6 Ng8 e7 Nf2 Bg4 Rc8 Ba3 Nf6 Bb1 Bf1 Bc5 Nd7+ Ka7 Kg8 g7 Rg6 Bg1 Kh7 g8R Rc6 Bh2 Bg7 Qf8 Bc3 e8Q Ba5 Qe4 Be2 Qd6 Bf1 Qdf3 d1B Qff4 Bb3 Re8 Bf7 Re6 Be8 Bf5 Bd1 Bg4 Bb3 Qff8 Qh5 Qh6+ Kg8 Re7 Rf6 g6 Re6 g7 Rg6 Qhf4 Kh7 Re6 Be2 g8R Bec4 Bc2 Bf1 Rd1 a1Q Bb1 Qg7 Rd4 Qe7 Ra4 Qf8 Bf6 Bd5 Nc7 Bd2 Kb7 Bb3 Ra8 Ba5 Na6 Bf7 Ka7 Qc8 Bd8 Be8 Qh6+
k5rR/Nq6/1R4RQ/1Nq3NK/1q2R1n1/bpq2bR1/Pn3Q1Q/1NB3rB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 b5 Kg4 g5 h4 e5 f4 c5 d4 Kc7 d6+ Kb7 d5 c4 a6+ Ka7 d7 b4 d6 e4 f6 b3 f5 e3 h6 e2 f7 e1Q h5 c3 h7 c2 f6 Qf2 h6 Nc6 Qe1 Qd2 Nf3 Q2a5 Kh5 g4+ Ng5 g3 Rh3 g2 Qf2+ Kb8 a7+ Kb7 Rg3 g1Q Bg2 Be7 f8Q Qdc7 d8R Qge1 d7 Qe6 f7 Qee5 Re8 Qg7 Bh1 Ba3 Re4 Nb4 Qd6 Qf6 f8R Qfc3 Rf6 Nd3 Rg6 Rb8 d8N+ Ka8 Nc6 Nb2 Rb4 Bh3 Rb6 Qab4 Qe6 Bg2 Qh3 Ne7 Qh2 Rhg8 h8Q Nd5 h7 Ne3 Qg7 Rbc8 h8R Ng4 Qh6 Bf3 Ra6 Kb7 a8N Rce8 Na7 Re1 Rad6 Rg1 Rdf6 Kb8 Rb6+ Qb7 Nc7 Qcc5 Ncb5 Ka8 Bd2 c1Q Bf4 Q1c4 Bc1 Qcc3 Be3 Nc4 Nd2 Rd8 Re1 Rc8 Nb1 Nb2 Bc1 Rg8 Re4
1qnB1b2/4Q2K/N1B1NQr1/2Rn1Rq1/2B1pP2/k2Q4/n1Q1rN2/2Nn1N1b b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 g4 c5 g6 h5 Kg5 e5+ f6 a5 g7 h4 Kg6 a4 b6 e4 b7 c4 g5 h3 f7 c3 d6 c2 d5 h2 d7 a3 d6 a2 Bc4 Nc6 b8Q+ Qb6 d8N Ra4 d7 Qb7 Ne2 Rh5 Nd2 Ra6 Qf4 Ra5 Qf6 Nh6 g8N Qa8 Nf1 Ra6 Ne6 Na5 d8Q Ng4 Nh6 Bd7 Kh7 Ba4 g6 Rh4 g7 Ne5 g8B Nb7 Bg5 c1N f4 Qb8 Qc2 Ng6 Qdd3 Ne7 b3 Ka3 b4+ Bb3 b5 Nd5 b6 Nd6 b7 Nc8 Bb5 Rh3 Bc6 Re3 Ng4 Rb6 Rb1 a1Q Nf2 Na2 Nc1 Re2 Rg1 h1N Bh4 Qd6 b8N Qae5 Na6 Qb8 Rg7 Qg5 Rg6 Qg2 Rg5 Qg1 Rf5 Qg5 Qdd1 Ba4 Rb5 Bb3 Rc5 Ba4 Ng4 Nf2 Qdd4 Nd1 Nf2 Bd6 f8Q Be7 Qe8 Bf8 Qee7 Bb5 Bb7 Be8 Qdc4 Bh5 Bc6 Bf3 Bf7 Bh1 Q4d3+ Rb3 Bb5 Rc3 Bfe8 Rb3 Bec6 Rc3 Bc4 Rb3 Qdd2 Rg3 Qdd3+ Qb3 Ng4 Qh5+ Qh6 Rf3 Qf7 Rg3 Nf2 Rg8 Be7 Qg5 Qhf6 Rg6 Bd8 Rg8 Qdd4 Rg6 Q7e7 Qb8 Qdd3+
2B2NK1/B2Q1R2/Q2Q1NNq/nq3nb1/R1PQ1B2/1b6/pr2Bq1q/3Bk2r b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 b4 d4 g4 d3 f4 h4 g6+ Kg7 f6+ Kh6 g7 a4 c6 h3 b6 d2 c7 a3 b5 h2 b7 e6 b6 Be7 f5 Kg5 f7 Kh4 f8N Kg3 g5 Kf2 f6 Na6 b8B Nb4 f7 Qd7 g6 Ra7 b7 Ra8 Ba7+ Bc5 b8Q Rh6 Qb5 Qe7 Be2 Qh4 Nf3 Be3 Nc3 Ne7 g8B Nf5 g7 Rb8 Qa6 a2 Nd5 Bd7 c8B Ba4 Nf6 Bb3 c3 Qc4 Nh4 Rh5 Re1 h1Q Nhg6 Rb7 Rg1 Qh2+ Rg3 Qch4 c4 Qg5 Bh7 Qh6 g8Q Rb6 Qg7 Bg5 Qc2 d1Q Qe4 Qd8 Bf4 Qd7 Qc6 Qb7 Qd7 Rh3 Bd1 Ke1 Rd3 Qc6 Rd5 Rb7 Ra5 Qb6 Ra4 Nc6+ Ke4 e5 Kd5 e4 Ke6 e3 Rc1 e2 Rc3 Qh1 Rf3 Qh2 Ne8 Nd6 Qd4 Rh5 Be3 Qh4 Bg8 Na5 Nh7 Bc2 f8Q Qb2 Rf6 Nf5 Kf7 Kf1 Qfd6 e1Q Nhf8 Qef2 Bc1 Ke1 Bf4 Ne3 Rf5 Qhg3 Rf6 Rh1 Rf5 Qgh2 Rf6 Q6h4 Kg7 Rb6 Bd5 Nf5+ Kg8 Qh6 B5f3 Qb4 Bg4 Qc5 Bgf3 Rb2 Rf7 Bb3 Nf6 Qb5 Bfe2
6N1/nQ2n1NB/Nqn5/B5q1/1P1Q1R2/R1pr1R1N/n1K1bbNR/1Q2r2k b - - 0 1 illegal: No possible last move
1B2rnqk/Q4rb1/B3Q2B/2N1qP2/Q2n2QK/B2RN2R/Rq2p1b1/2qQ4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 a5 d4 c5 f4 e5 Kf2 g5 Kg3 Kg7 d6 e4 b6 c4 b7 e3 d7 g4 h6+ Kh7 d5 a4 b5 c3 f6 c2 f7 a3 f5 a2 h5 Ra7 d6 Qe8 d8R Nf6 d7 Be7 f8B Ng8 b6 Bd6+ Kh4 g3 Rh3 g2 Ba6 e2 Nc3 Bc7 Nf3 g1Q Na4 Qee3 Bfa3 Qe6 Ne1 Bf4 Ng2 Qge3 Nc5 Q3b3 Ne3 Nc6 b8Q Qd3 b7 Nge7 Bd2 c1Q Qa4 Bd6 Qc7 Qg8 b8B Qdc3 Qb6 Rc7 Qa7 Bb7 Qg4 Qe8 Qa4 Kg8 h7+ Kg7 Qg4+ Qg6 Qa4 Qe5 Qg4 Re8 h8Q+ Kf7 h6 Qg8 Qa4 Nd4 h7 Qb2 Bc1 Bg2 Bd2 Qd5 Qe5 Ng6+ Kg3 Be7 h8Q Bf6 Qh4 Kg7 Qe6 Nf8 Qh5 Be5+ Kh4 Qc1 Qg4+ Kh8 Rb1 a1Q Rb2 Bg7 Ra2 Bh1 Nd1 Bg2 Bh6 Qe5 Ne3 Nc6 Rc8 Rb7 d8Q Qab2 Qdd1 Rf7 Rd8 Nd4 Rd7 Nc6 Rd2 Nd4 Rd3
8/2NBKQ2/R2nBn2/1rB1P2r/N1Qqr2k/br1bQqB1/2NQ3p/BR6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kf3 f5 Kf4 c5 b4 a5 g4 h5 e4 a4 d4 a3 g6 a2 Kg5 f4 b6 c4 g7 c3 e6 c2 b5 f3 b7 f2 b6 h4 d6+ Ke8+ e7 Kf7 d5 h3 d7 h2 d6 Ra5+ Bb5 f1Q Bb2 c1R Qf3+ Ke6 Qe3 Rc7 Ne2 Ra3 Nd4+ Ke5 Nc2+ Ke6 Nc3 Rc6 Na4 Qg2 Rhb1 Nh6 g8B+ Nf7+ Kg6 Bh6 e8N Rc5 g5 Na6 b8B Nb4 b7 Rd3 Ba7 Rb3 b8B Qe7 d8Q Rcc3 d7 Nd5 Qc7 Qd6 d8Q Nf6 Bc5 Ba6 Bd7+ Ke5 Qc6 Bf8 Nc7 Rh5 Qb5 Qd3 Qc4 Nd6 Bge6 Be7 Kg7 Qd4 g6 Rd3 Bc3 Rb5 Bb2 Rdb3 Bc3 Nb7 Kf7 Qf3 g7 Bf8 g8Q Nd6+ Kg6 Be7 Qf7 Bf8 Qee2 Kf4 Qe3+ Kg3 Bb2 Ng4 Qdg5 Be7 Qd2 Kh3 Qge3 Kh4 Bc3 Bg5 Bb2 Nf6 Kg7 Bf4 Kf8 Bg3 Ke7 Be1 Qdd3 Bb4 Qdd2 Ba3 Bc3 Qd3 Be5 Qd4 Bf4 Bb7 e5 Be4 Bba7 Bd3 Bab6 Qa8 Ba5 Qf3 Bc3 Qfe4 Rg1 Qf3 Rab1 a1R Rg6 Ra2 Ba1 Rab2 Rg8 R3b4 Ra8 R2b3 Ra6 Qc3 Qd5 Re4 Qc4 Qd4 Bg3+
4Q1N1/q2Q3B/1n1B2K1/bb1pQ1bR/1RP2r2/N2n2Q1/2bR1QqR/4Nrk1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 e5 Ke4 a5 g4 h5 f4 a4 c4 h4 b4 h3 g6+ Kf6 g7 d6 c6 h2 b6 a3 c7 a2 g5+ Kf7 g6+ Kf6 b5 Ra3 b7 Rah3 b6 Na6 b8Q R3h6 b7 Rh5 Nf3 Nb4 Ba3 Rh4 Ne1 Bd7 c8Q Ne7 g8Q Bh6 g7 Ned5 Bd3 Nb6 Qc2 Rh7 Qf2 Bb5 Qd7 Bg5 Qbc7 Qe8 b8R Qg6 Qg3 Rh8 Qge8 Rf8 Bc2 Nd3 Bc5 Qh6 Na3 Qg6 Rd1 a1Q Rd2 Rf7 Rf1 Rg4 Rff2 h1B+ Rg2 Qd1 Bb1 Qa4 Bc2 Qa7 g8N+ Kg7 Bb1 Kh7 Bb4 Qg7 f6 Kg6 Bc2 Kh5 Kf5 d5 Bd6 e4 Rh2+ Rh4 Rb7 e3 Qcb8 e2 Qe5 Rf8 f7 Bg2 Qbe8 Bf3 Ke6 Bg2 f5 Be4 f6 Qg6 Qf2 Kg4 Qb8 Rd8 f8R Rc8 Rf7 Rf8 Rh7 Qg7 f7 Bg6 Ng2 e1B Rh5 Be4 Qbe8 Bh7 Qg1 Kf3 Bb1 Rf4 Bc2 Nc1 Bb1 Bc2 Rb8 Bca4 Bh7 Bc2 Rb7 Nd3 Rb8 Rg4 Kf5 Rd4 Re2 Ba5 Rd2 Qh8 Kg6 Rf4 Qee1 Qd4 Q1e5 Qf2 Rb7 Kg3 Ne1+ Qg2 Qa8 Re8 f8Q Re7 Qae8 Rf7 Qc5 Rf5 Qcc7 Rf7 Rd1 Kf2 Rd2+ Kg1 Qcb8 Rf1 Qg3 Ba6 Qee5 R7f4 Qbe8 Na8 Rb1 Nb6 Rb4 Bb5 Qff7 Rh4 Qff3 Rf4 Qff2+
b1BR1BnQ/1b3RK1/B3qNn1/2p5/1N1NN1b1/1r5k/2PBq2r/1bB1QR2 b - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 f4 Bd6 f5 Nc6 f6 Ba3 g6 Ba6 g5 Bc8 axb3 Bf8 b4 Bg7 fxg7 Nb8 b5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 e4 d5 b4 a5 b6 c5 b7 h5 b5 d4 b6 h4 Nd2 d3 Ne2 h3 Nd4+ Ke7 e6 h2 Ke5 f4 Qe1 Nh6 g8N+ Kf8 e7+ Kg7 e8R a4 Nf6 a3 Nd5 f3 Nb4 Qd7 Rd8 a2 Bh3 f2 Rf1 h1B Rb1 Na6 b8B a1Q b7 Ng8 Bd6 Nc7 b8B Ra3 Bg4 Rh2 Bf8+ Kh8 g7+ Kh7 g6+ Kh6 Rb2 Kg5 Ra2 Rb3 Ra7 Kh4 Be6 Ne7 Kf6 Bb7 g8B Qa6 e5 Ncd5+ Kg7 Nf4 Ne4 d2 Bc4 d1B Bge6 Qe8 Bc8 Qe6 Ba6 Ng8 Bbd6 Ba8 Rf7 Bg4 Bde7+ Kh3 Bg5 Qb5 Bh6 Qe2 Bd2 Qd6 e6 Bhf3 e7 Qe6 e8N Bh1 Rg1 f1B N8f6 Bfg2 Rf1 Bb7 Ng3 Bgd5 Nge4 Bg2 Kh8 Ba8 g7 Ng6+ Kh7 Rf3 Bhe3 Ba2 Bc1 Bb1 Bed2 Nh6 g8Q Rb3 Qh8 Ng8 Ng3 Bgd5 Nge4 Bdb7 Kg7+
1q1R1bqn/1Q3R2/bRQB2B1/1pBr1b2/Qb1N3B/1r2Q2P/K1Nn3k/7B b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 a4 f5 d4 g5 Kd2 c5 Kc2 b5 Kb3 c4+ Ka2 f4 e6+ Kd6 a6 f3 h3 c3 e5+ Kc7 h6 g4 e7 f2 e8B c2 h7 g3 a7 g2 e6 Kd6 e7 Qd7 a5 Qe6 a6 Qe3 Nf3 g1B Ba3+ Kc7 d6+ Kb6 d7 Kc6 d8R+ Nd7 d5+ Kc7 Nd4 c1Q Bg6 Qe6 e8Q Qf4 Bc5 Nb6 Qa4 Nh6 Na3 Nc4 Nac2 Nd2 Bg2 Qg8 Qe3 f1B Rh2 Bb7 Bh1 Bd3 Rf2 Nf7 Rf3 Rc8 a8Q Bf5 a7 Ba6 Rff1 Bf2 Be7 Be1 d6+ Kb6 d7 Kc7 Bh4 Kd6 Qb7 Rc3 a8Q Rb3 Rd1 Qg3 Rb8 Qf4 d8B Qh2 Qg5 Ke5 Be7 Qg3 Qc6 Qf4 Rb6 Qh2 Qab7 Qf4 Bf3 Qh2 Qg1 Kf4 Bc5 Qg3 Bhe7 Qh2 Qe3+ Kg3 Bg2+ Nf3 Bh1 Bb4 Qee6 Nd2 Rf2 Qg2 Qe3+ Kh2 Rf4 Qg3 Rf3 Qg7 Rff1 Rg8 h8B Qb8 Bh4 Qh7 B8f6 Nh8 Bfe7 Rg7 Rf3 Qg8 Rf4 Bg4 Rf7 Bf5 Bh7 Rg5 Bg6 Nb1 Ne6 Rh5 Rd8 Nd2 Ned4 Bc8 Bef6 Rd5 Bfe7 Bf5 Bed6+
8/3Rn1Qb/1R3n1q/QpN2BrP/5Nn1/K1Qr3B/Rn2qb1B/BR2B1k1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc3 b5 Kb3 c5 f4 e5 h4 g5 a4 g4 f6 g3 f5 c4+ Ka3 e4 h6 c3 h5 e3 a6 e2 a5 e1N h7 c2 a7 g2 f7 Ne7 a6 Be6 f6 Ng6 Bd2 c1N Qb3 Qe7 Ne2 g1Q Bh3 Bg7 f8B Qh2 f7 Qg1 Nf4 Bd7 Nc3 Nh4 Na4 Qf2 Ra2 Qh2 Qc3 Qg1 Nc5 Nef3 Be1 Rg8 h8B Nd3 Bg3 Qa1 Rb1 Nb2 Be1 Bf6 Bh6 Rg6 f8Q Nh2 Qg7 Qe2 Bg5 Nf5 Bgh4 Bc6 Bhg3 Ne7 Bf5 Bh4 Bh3 Kc7 d6+ Kb6 d5 Ng4 d7 Rg5 d8R Nd7 d6 Ndf6 d7 Be4 Rb8+ Kc6 d8Q Bh7 Qda5 Kd6 Rb7 Rd8 a8R Kc6 a7 Rd3 Rab8 Kd6 Rd1 Qc1 a8B Qce3 Rb1 Qe6 Qb3 Ke5 Rd7 Qb6 Bd5 Kd4 Be6+ Ke3 Qbc3 Qc6 Rb6 Kf3 Bh2 Bf2 Bf5 Qce6 Nd5 Q6e3 Bc7 Qc1 Nf4 Kg3 Be5 Kh2 Nfe6+ Kg1 Qf8 Rg7 Qb3 Ne4 Bg3 Qh6 Nf4 Nd1 Qf7 Rg5 Ba1 Nb2 Qbc3 Nef6 Qg6 Nh2 Qg7 Nhg4 Bh2+
1b2qrk1/6RN/1BRn1B2/prQ3K1/nR3N2/Rb3qbB/P2N4/2NQ1bN1 b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 Ke2 Kf7 Ke3 e5 h4 g5 f4 b5 d4 a5 h6 b4 h7 g4 h5 g3 d6 e4 f6 b3 d5 g2 d7 b2 f5 Nh6 Kf4 e3 c6 e2 c7 e1Q d6 Qee7 Nd2 b1B Rh3 Qe1 Kg5 Bc2 Rb1 Bb3 Bb2 Bc2 Ra3 Bb7 c8R Bd5 Rc6 Qb6 d8B Qa6 d7 Bf3 Bb6 Ra7 d8R Bd3 Rd7+ Qe7 Be5 Bfe4 Rb4 Qb7 Rdc7 Bg7 Bb2 Re8 h8N+ Kg8 Nf7 Bd5 Ne5 Bb3 Ba1 Bb5 Nd3 Nd7 Nc1 Rf8 Bc3 Qe8 f7+ Kh8 f6 Nf5 h6 Nc5 h7 Na4 Be5 Nd6 Bb2 Ra8 Rd7 Rb8 Bc3 Rg8 f8N Qa8 f7 Be5+ Ng6+ Kg7 h8N Rf8 Nf4 B5c4 Nhg6 Kh7 Nfe2 Bg3 Nef4 Ba6 Bf6 Bd3 Ngf3 g1B Bh3 B1h2 Ng1 Bf1 Rdc7 Qa6 Rb7 Qae2 Re7 Qf3 Ra7 Rh8 f8Q+ Rb7 Qe7+ Kg8 Nf8 Rb8 Nh7 Rb7 Bc7 Rb5+ Qe5 Kf7 Qf5 Rf8 Bb6+ Kg8 Qc5 Nc4 Nfe2 Bb8 Nf4 Bg3 Rd7 Nd6 Rg7+
3N1QR1/1Nn2n2/1P1Rb1n1/b2R1p1B/qn1B4/1rrN1q2/k2BNRRK/3Q4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 d4 g5 h4 f5 e4 a5 b4 a4 e6+ Kd6 h6 c4 h7 g4 e7 c3 e8N+ Ke7 b6 c2 b5 a3 b7 a2 d6+ Ke6 b6 Nc6 b8R Ra6 d7 Na5 h5 Nf6 h6 Qe7 d8N+ Kd7 d5 Qe6 e5 Bb4 d6 Qb3+ Kh2 Nb7 Nh3 Ra3 Nc3 Nd5 Rg1 Ba5 Bd2 c1N Nf4 Nd3 Rg2 N3b4 Nce2 Qf3 Nd3 Nc7 Ra8 Rg8 h8B Rb3 h7 Rg5 Rb1 a1Q Rb2 Qa4 Bg7 Rg6 h8R Rf6 Rg8 g3+ Kg1 Re6 Rf2 g2 Kh2 g1N Bg2 Qg4 Bf3 Nh3 Ra7 Qe4 Bh5 Qf3 Rc2 Re7 Rc5 Rf7 Rd5 Nf4 Bh8 Rf6 Ra8 Rf7 Rgg2 Ng6 Nc6 Nb5 Rd4 Ke6 d7 N7d6 d8R Rc7 Bf6 Nf7 Nd6 Rb2 Nb7 Bd7 Rg8 Rb1 Rad8 Bc8 Ne7 Rc3 Nc6 Nc7 R4d7 Nd6 Bg7 Kd5 e6 Kc4 e7 Nf7 e8Q Rb2 Rd5 Be6 Bd4 Rb1 R8d6 Rb2 Qb1 Kb3 Qd1+ Ka2 Ncd8 Rbb3 Qf8
1b2R3/1QN1n2p/QPq1QB1B/1B1B1n1n/1Q3Rk1/2Q1n1rR/q1b1K3/1r1N4 b - - 0 1 illegal: No possible last move, all moves rejected
1N3nkq/b2B2p1/K2Qn2r/QrNB3N/Q7/1Nb1b1NP/R1bq2R1/2B3Q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 c5 e4 a5 Ke2 f5 Kd3 Kf7 Kc4 f4 d4 f3 e6+ Kf6 e5+ Ke7 b6 f2 Kb5 c4 d6+ Ke8 d7+ Ke7 h3 c3 h6 c2 d5 a4 b7 a3 h7 a2 Bc4 f1Q Rh2 Qc7 d8N Ra4 d6+ Ke8 d7+ Ke7 Ne2 Nf6 Bd5 Qf3 Ng3 Qfc3 Nd2 Qf3 Rg2 Qf2 Nb3 Ra7 Qg1 Na6 b8N Ng4 Nb7 Qd2 N7c5 Nf6 d8N Ke8 e7 Bf5 Nde6 Qd8 Nf4 Nd7 Nfh5 Rc7 Ka5 Rc8+ Kb5 Nc7+ Ka5 Ne6+ Ka6 Kf7 b5 Rc6+ b6 Rg8 h8Q Be4 Rb1 a1B Rb2 Bg6 Ra2 Bc3 Qh7 Rh8 Qh6 Kg8 Qg5 Rh6 e8B Rc7 Qf5 Rb7 Qg5 Be7 Qf5 Nf8 Bd7 Bh4 Qg5 Qe8 Qd8 Bg5 Qc7 Be3 Qd8 Rc7 b7 Rc8 Qa5 Bf2 Na4 Ba7 Nac5 Be4 Nc6 Rc7 b8Q Rb7 Qd6 Rb5 Nb8 Qf7 Bb2 c1B Ba3 Bc2 Bb2 Ng5 e6 Qe8 e7+ Nge6 Ba3 Qg5 Bb2 Be3 Bc1 Qd8 Be4 Qd5 e8Q Qd3 Bb7 Qh7 Bd5 Qh8 Qg6 Qg5 Qe4 Qf4 Qea4 Qf2 Qe1 Qd2 Qg1
1KQq2Rb/B3R1pr/Q4n2/1B1P1RQb/4NN1b/rb2N2Q/3R4/1k1qQ2n b - - 0 1 illegal: Other
1Q1b2N1/1Br1NP2/RN1bn1r1/2qQ2k1/bN2KBq1/1RQp1RRn/4b3/N7 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 g4 h5 b4 e5 c4 a5 f4 h4 f6 Kg6 f5+ Kf7 c6 a4 b6 a3 c5 h3 g6+ Ke8 b5 d4 b7 h2 g7 Kf7 c7 a2 b6 Bd6 g5 Ra4 g6+ Ke8 f7+ Ke7 f8R Rh5 f6+ Ke6 c6 Kf5 Bb2 Qd7 Nh3 Qe6 Nf2 Ra7 Bg2 Bd7 c8Q Be8 c7 Ne7 g8N Rg5 g7 Rg6 Na3 Na6 b8Q Nd5 b7 Kg5 Ke4 Ba4 Nd3 Nf4 Rg1 h1B Ne7 Nh3 g8N Qc4 Nb4 Qc5 Qf3 d3 Bd4 Bd1 Nac2 Be2 Rab1 a1B Rb3 Bc3 Na1 Bd2 Qd7 Be1 c8N Nc7 Nb6 Ne6 Qc6 Bh4 Ra3 Nef4 Ra6 Ne6 Ke3 e4 Qcc8 Qf5 Be5 Qg4 Rf7 Nef4 Kd4 e3 Qc3 Ne6+ Kd5 Bf1 Qe4 e2 Bf3 e1Q Rg3 Qc1 Qed4 Nhf4+ Ke4 Be2 Qd5 Qa3 Qf8 Qc1 b8R Rc7 Rb7 Qg1 Qb8 Qc5 Rg7 Bd1 f7 Ba4 Rh7 Bg2 Rh6 Bf1 Bh1 Rg7 Rf6 Nh3+ Rf4 Be2 Bg2 Kh5 Bf3 Rg6 Bh1 Qg5 Rff3 Qg4+ Bf4+ Rg5 Nd7 Qc4+ Ke3 Rc8 Qf5 Rc7 Rf2 Bc6 Ng6 Be5 Nbc2 Qd5 Rb3 Bd1 Nb4 Be2 Nb6 Bb5 Bf3 Qd6 Bb7 Ba4 Ke4 Qc5 Rff3 Bd6 Qd5 Be8 N6e7 Ba4 Nf5 Rg6 Qdc4 Bhe7 Qd5 Bd8 Nfe7+ Kh4 Rg1 Qg3 Be5 Kg5 Rg2 Nef4 Rg1 Qg4 Rgg3 Ne6+ Bf4+
5q1b/1N3p2/3bbkN1/bRQ1r3/nB3KNR/2PrBn1R/QRB5/1B1q1B2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 a5 h4 g5 b4 d5 c3 g4 c6 d4+ Kf4 d3 e4 g3 b6 g2 b5 d2 e6 a4 h6 a3 b7 a2 b6 Kf6 h5 Ra6 c7 Bg7 h7 Nd7 b8B Nf8 e5+ Ke7 b7 Qe8 h6 Bf6 Nh3 g1B Qe2 d1Q Nd2 Bd4 Nb3 Ra7 Be3 Qd3 Nf2 Qa4 Rh3 Nd7 Rb1 a1B Nc5 Qdb5 Rb2 Qbc4 Ng4 Ke8 e7 Ra5 Rb5 Bg7 Qa2 Ngf6 Ba7 Qd3 b8R Ne4 Nb7 Qa3 Bc5 Nb6 Bb4 Ng5 Rh4 Rf8 h8N Nf3 h7 Qd1 Ng6 Na4 h8R Bb6 Rh3 Rg8 R8h4 Bb2 Bd3 Kd7 Bb1 Rd8 e6+ Kc6 Nd6 Bh8 Nb7 Rd3 e8B+ Bd7 c8B Kc7 e7 Be6 Bed7 Bc1 e8Q Bb2 Rg5 Re5 Bb5 Ba5 Qf8 Bc1 Bc4 Bd2 Bd7 Be1 Bdb5 Bf2 Ba6 Kd7 Bb3 Be1 B3c2 Bf2 Bc1 Bc5 Bd2 Bd6 Be3 Bdc7 Qc5 Bd6 Nd8 Ke8 Rb5 Kd7 Nb7 Ke8 Ne7 Kf8 Ng6+ Kg7 Rb6 Rd2 Bf1 Rd3 Nh2 Kf6 Rb5 Bg7 Rg2 Bh8 Ng4+ Kg7 Qb6 Be7 Bb3 Rg5 Rb2 Re5 Bd6 Qc5 B3c2 Qc8 Qd4 Qf8 Bb4 Bd6 Nh6 Kf6 Qdc4 Qe2 Qc5 Qd1 Ng4+
1KQq1Q2/2p1RQN1/1b1rqQ2/3qN1rR/4B3/4P3/kNN1NR1q/n1Bb1n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 g5 Kd4 a5 Kc5 f5 h4 g4 d4 f4 b4 f3 e6 f2 d6+ Kf6 e7 Ke6 e8R+ Ne7 h6 a4 d5+ Ke5 b6 g3 e3 a3 b7 g2 d7 a2 b5 Ra4 d6 Rf4 h7 Rd4 h5 Rf4 b6 Bg7 h6 Rf3 Qd5+ Kf6 Nd2 Nec6 Bd3 f1Q Re7 Rg3 Be4 Qf2 Ne2 g1Q Nc4 Qge1 Rh5 Qh2 Nb2 Qeh1 Kb5 Rg8 h8Q Na5 h7 Nbc6 Ka6 Nb4+ Ka7 Nb3 b8N Nc2 b7 Rg5 Nc6 Nd2 b8Q Nf1 Nb4 Q1g2 Rb1 Na1 Nc2 Qg4 Qba8 Qe6 Kb8 Rf8 Qc4 Ke5 Qg8 Rf4 h8Q Rf6 Qf7 Rh6 Qhf8 Bh8 Qca6 Bb7+ Ka7 Bc6 Q8c8 Ba4 Kb8 Bf6 Bd3 Kd5 Be4+ Kc5 Ka8 Bd4 Kb8 Qe8 d8N Bb3 Na3 Kb4 d7 Bd1 Nc2+ Kb3 Nc6 Bb6 d8N Qd5 Ne5 Rd6 Ne6 Qd8 Ne1 Nc2 Ng7 a1Q Ng1 Qa4 Ne2 Qc6 Ra1 Qe6 Ra2 Na1 Nc2 Qcd5 Qf6 Bc5 Qc6 Bd4 Qce8 Bb6 Qef7 Bc5 Ra4 Bb6 Rc4 Ka2 Rd4 Qg3 Rd2 Qh2 Ng3 Qc4 Rf2 Qcd5 Ne2
bB3qB1/1p3QrN/1bR2q2/5kPQ/KR3Nn1/3NB1N1/n2Qqr1q/2Q1Q3 b - - 0 1 illegal: Other
QBB1K1bn/pQN1b2Q/1r2q2N/b1r3B1/2R4B/k2QB1P1/q5Nb/1R1n4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 f4 c5 d4 h5 f6 e6 f7 h4 b6 c4 b7 h3 f5 h2 g3 c3 d6 c2 d7 Nf6 g6 Bc5 f8Q Ne4 d5 Nf2 f6 Kb3 d6 Qc7 d8B Rh6 f7 Nd3+ Kf6 e5 d7 e4 Nc3 e3 Nd5 e2 Rb1 e1B Bh3 Rh7 g7 Ba3 g8N Na6 b8B Nf2 Qe7 Ba5 f8Q Nc5 Nf3 Rh6+ Kf7 Nce4 Be3 Qb6 Nh4 Qe6+ Ke8 Ng5 Nc7 Nf7 Ng2 Nh8 Qd3+ Ka4 b4 c1B b5 Nd1 Rg1 h1Q b6 Qh2 b7 Bcb2 Rc1 Bd4 Rc4+ B3b4 Qf3 Rf6 Qh7 Ka3 Nh6 Rf5 Rh1 Rc5 Qff5 Qg1 Qe4 Qf2 Qeg6 Qa2 Qf5 Nc3 Rb1 Nd1 Qd3+ Ka4 Bc1 Bg1 Be3 Bh2 Bg4 Qf6 Qef7 Qf5 Be7 Qe6 d8B Bd7+ Kf8 Bc6 Bh4 Bf3 Bdg5 Bd5 Rc3 Bb3 Rc4 Ka3 Qfg7 Bc3 Bf5 Bf6 Qgg8 Be7+ Ke8 Qe4 Bc8 Qe6 Qgg7 Qf6 Na6 Qc2 Be5 Qa2 b8Q Bf8 Rb4 Qd6 Qd7 Be7 Qc6 Qf6 Qbc7 Rb8 Qa8 Rbb5 Qcb7 Rb6 Bb8 Qf5 Nc7 Qe4 Qd7 Bg8 Rc4 Qe6 Qdd3+
2n1B2R/kB2rR1N/2Q2RQr/NB2rQp1/6r1/4RKP1/b1q2nnr/2BR4 b - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 h4 g6 h5 d3 h6 Bg7 hxg7 Ba6 cxd3 Nd7 d4 Bc8 d5 Nb8 Kf2 Kd7 b4 c5 e4 Kc7 d4 Kb6 e6 f5 e5 h5 g3 a5 e7 c4 e8Q f4 e6 c3 e7 c2 d6 h4 d5 a4 d7 a3 d6 a2 Qd3 h3 Kf3 h2 Nd2 Kb7 b6 Qc7 d8R Qc4 b5 Rh4 d7 Na6 Nh3 Qc5 Qf5 Ra7 Nc4 Nb4 Ng5 Rh6 Nh7 g5 Qeg6 Nd3 e8B Ne7 g8B Nf2 Bd5+ Kb8 Rb1 a1R b7 R1a5 Rb3 Ra4 Rg1 h1R Re3 R1h2 Na5 Re4 Bc6 Re5 Bg2 Qc4 Rd1 Qc3 Rd6 Qd3 Rf6 Qd2 Bb2 c1R Rf7 Ra1 Bc1 Ra4 Bf1 Qc2 Bd5 Kc7 b8R Ba6 Be4 Nc8 Rb6 Rb7 Bc4 Kb8 Rbf6 Ka7 Bf1 Rc7 Bc6 Bb7 Be4 Bd5 b6+ Ka8 b7+ Ka7 b8R Ba2 Bd5 Rae4 Bb5 Rcc4 Rbb6 Re7 Bb7 R4e5 Rbd6 Ra4 Rd2 Rc4 Ke2 f3+ Kf1 Rc3 Rd1 Nd3 Kg1 f2+ Kf1 Rh1+ Kg2 Rc4 Kf3 R1h2 Qh3 Nb6 Qhf5 Rg4 Rb8 R6h4 d8Q Rh6 Qd5 f1N Ree1 Ne3 Bec6 Ng2 Rh8 Nf2 Re3 Nc8 Be8 Bc4 Qd6 Ba2 Qc6
RQB3q1/6RN/1n1R1Q1n/3Q1p2/rn1B1k1r/2K2br1/1Qn2P1n/2BR1NR1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 e6 e4 h4 d4 h3 e5 Bd6 exd6 Rh5 gxh3 Bb7 h4 Rh8 h5 Bc8 Kd2 Kd7 h4 a5 b4 c5 b6 g5 b7 f5 h6 c4 h7 a4 h5 a3 h6 a2 b5 e5 b6 g4 Nh3 g3 Rg1 e4 Ng5 g2 Kc3 e3 Nd2 Nc6 b8Q e2 b7 Ke8 d7+ Ke7 d6+ Kf6 d5 Ke5 Qc2 e1R Qb2 Nce7 Be2 Ra6 Nf1 Ra4 Bf3 Qf8 d8Q Re4 Qa8 Rg4 d7 Rg3 d6 Qe8 b8Q Bb7 Qdb6 Nc8 d8R Bc6 Rb1 a1N Rd7 Nc2 Rg7 Qd8 Qba6 Nb6 d7+ Qc7 Nd2 Kf4 d8R Bd5 Rd1 g1N Rd6 Qf7 Qc6 Be4 Qd5 Qg6 Qd3 Ba8 Bb7 Nf3 Bc8 Nh2 Ra1 Bf3 Qd5 Qf7 Nf1+ Ne3 Kd2 c3+ Kd3 c2 Kc3 Nd7 Qab6 Qf8 Qd8 Nb6 Qf6 Qf7 Bd2 c1N Rb1 Nd3 Bc1 Nb4 Ra1 Ne7 Rb1 Rf8 h8R Ng8 h7 Nh6 Rhg8 Re8 h8B Re4 Nh7 Qe8 Ra7 Rd4 Rgg7 Qg8 Ra8 Re4 Nd2 Rd4 Rg1 Nec2 Nf1+ Ne3 Bd2 Re4 Rd1 Rd4 Bc1 Re4 Nd2 Nec2 Nf1+ Re3+ Rd3 Rg6 Rb7 Be4 Qff7 Rg4 Bd4 Rh4 Qf6 Bg2 Rg7 Bh1 Nd2 Rg3 Nf1+ Ne3 Rd1 Bf3 Rd2 Nec2 Rd1+
2B1B3/1R1q1qr1/k1bNp2n/2BRb3/4PNQ1/2Nb3B/3QQ3/KbNBnn2 b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 b4 Kd7 e4 f5 d4 h5 Kd2 c5 Kc2 Kc7 Kb2 Kb6 d6 a4 d5 f4 d7 c4 d6 f3 Ne2 f2 Bh3 f1B Qd2 h4 Nbc3 Rh6 Rb1 a3+ Ka1 a2 Ba3 Ka7 b6+ Ka6 b5+ Ka5 b7 Rh8 b6 Rh7 Nc1 Ka6 Bc5 Bd3 Rd1 Nc6 b8Q Nh6 g8B Rg7 b7 Ne5 Bf7 Nf3 Be8 Nh2 Rb4 Qc7 d8N Bb1 d7 Nf1 Nf7 Qf4 d8N Bd7 Qbd6+ Bc6 b8Q Qg4 Rb7 Qd7 Kb2 a1N Qe2 Nc2 Ne6 Ne1 Nf4 Bd3 Ka1 Bb1 Be6 h3 Qdd2 h2 Qc8 h1B Nd6 Bg2 Bh3 Qc7 Qcg4 Qd7 Qb2 Bf3 Rd5 Bg2 Qbd2 Bf3 Qf2 Be2 Qh2 Bed3 Qhe2 Rf7 Qee3 Bg7 Qee2 Bf6 g7 Be5 g8B Rg7 g6 Qf5 Be6 Qf7 Bc8 e6 Rd4 Bd5 Ba4 Bc6 Bd1 Qd7 Ncb5 c3 Rd5 c2+ Nc3 Rh7 g7 Qf7 g8B Rg7 Nb3 c1Q Bh7 Qc2 Nc1 Qb3 Bg6 Qa4+ Ba3 Qd4 Bb4 Qa7 Ba3 Qd7 Be8 Qf2 Bc5 Qf3 Ng6 Qff7 Nf4
1k1nQ1nn/1r2q2R/2pb1q2/2NRNq1N/R1PQ4/NB2Q1N1/1B2n1K1/2r2R2 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Be7 g4 Bb7 h5 Be4 Ra5 Bd3 Ra1 Bg6 hxg6 Bf8 Kf2 f5 b4 a5 e4 d5 b6 Kd7 g7 Kc8 g6 h5 b5 h4 e6 a4 e5 f4 g5 f3 e7 c6 e8Q h3 e6 d4 e7 d3 b7+ Kc7 b6+ Kd6 Bb2 d2 Na3 h2 Ne2 Na6 b8N Rh3 b7 Kc7 Nd7 Nc5 b8N Ra7 Ng3 Rb7 Ne5 Ne6 Bc4 Rh6 Rf1 h1N+ Kg1 Nf2 Bb3 Ne4 c4 f2+ Kg2 Nd6 Nbd7 Rh1 Nc5 Kb8 Qg4 d1N Qd4 Nf7 Ra2 Nf6 g8R Nh8 g7 Nc3 g6 Ne2 Raa1 Qc8 Rad1 Nd8 Rd3 Qd7 Rd2 Nf7 Rh8 Ng8 Rh7 Nh8 Rdd1 Nh6 g8Q Qc7 Qgd5 Ng8 g7 Qd6 Q5e4 Qc7 Nb1 a3 Qee3 a2 Na3 a1Q Rd3 Qb1 Rd2 Qf5 Rdd1 Nh6 g8N Qcd7 Nf6 Ng8 Nfh5 Qd6 Qd7 Qc7 e8R Bd6 Qf7 Qe7 Rf8 Qff6 Qe8 Qf5 Qh4 Qff6 Rd5 Qf5 Ra1 Rc1 Qhd4 f1Q+ Kh2 Q1f4 Kg2 Qfe6 Rf5 Q6f6 Ra2 Qg4 Rf1 Qge6 Nb5 Qg4 Ra4 Qgf5 Na3
q3r3/3N1Qkp/B3n3/4q3/Bb3QnP/1Q2NRQK/1NNrqQrB/R4r2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Qf6 cxd5 Bf5 gxf5 Qd8 Kf2 Kf7 Kg2 a5 d4 c5 b4 g5 h4 a4 e4 f3+ Kh3 f2 d6 c4 b6 c3 b7 a3 b5 c2 b6 a2 d5 Ne7 d7 Ng8 d6 Qc8 d8N+ Kg7 d7 Qc4 e6 Qd4 e5 Qb4 e7 Qa5 e8B Nc6 b8Q Qe1 b7 Nce7 e6 Nd5 e7 Nb4 f6+ Kh6 f7 Ra6 Ne6 Qe2 d8Q Qh5 Qd8d6 Ra4 Ng7+ Nf6 Nf5+ Kg6 Ne2 Na6 Qg3 Rd4 Ba4 Rd2 e8Q Ng4 Qbf4 Bb4 b8N Nc7 Nd7 Ne6 Ne3 Kg7 Nec3 Rg8 Ba3 c1Q Ba6 f1R Qb3 Qb2 Ncd1 Qe5 Nb2 Rh8 Qe7 Re8 Rh2 Rb8 Rf2 Re8 Nc2 Qe2 Nc3 Qe5 Nd5 Qe2 Rb1 a1Q Rf3 Qa2 Nde3 Qa1 Nbc4 Qe5 Bb2 Qg6 Ra1 Qe4 Bd4 Qc6 Nb2 Qa8 Qd6 Nh6 Qf2 g4+ Kg2 g3 Kh3 g2 f8Q+ Kg6 Ba7 g1R Bb8 Ng4 Q4g3 Rg2 Qf7+ Kh6 Qd4 Rfg1 Bc7 Rf1 Qdf4+ Qg5 Qfc4 Bc5 Qe5 Bb4 Bd6 Qf5 Qc7 Qh5 Qe4 Qc5 Bh2 Qf5 Qcg3 Qe5 Qh5+ Kg7 Qef4 Qa7 Qhf5 Qa8 Qf7+
2R4B/N2BpB1R/2R3n1/N3nr1b/1KB1P1qq/B3n2n/Q1NQR1kr/4q3 b - - 0 1 illegal: No possible last move
1Nb3q1/1pbRB3/1RB2Qn1/2q1R3/1N1qRNB1/1PQ1b1K1/1q2R1n1/r1B3k1 b - - 0 1 illegal: No proof kernel
1R1B1RR1/p7/1bB1k1r1/5nb1/1B1r1Q2/bN1QN1qb/PBBbb3/K2Q3Q b - - 0 1 legal: proof: g4 b5 e4 g5 c4 f5 cxb5 d5 gxf5 Nd7 exd5 Ne5 h4 g4 Bc4 Nf7 Bf1 Ng5 hxg5 Bg7 Qc2 Bh6 Qd1 Bf8 b4 Kf7 d4 h5 Kd2 e5 Kc2 c5 Kb2 e4 f4 c4 g6+ Kf6 b6 e3 b5 g3 d6 e2 g7 e1B b7 h4 b8Q g2 b6 h3 d5 h2 b7 Bh4 d7 Qc7 d8B+ Ne7 g8B Qa5 d6 Bg7 d7 Rh7 Nd2 Bh6 Nb3 Qa4 Rb1 c3+ Ka1 c2 Nh3 g1B Nf2 Qb4 Ng4+ Kg7 f6+ Kg6 f7 Kf5 f8R+ Bf6+ Bb2 c1B Bd5 Qa4 Bc6 Bf2 Ne3+ Ke6 Rg1 h1B Rgg8 Bfg5 Bd3 Qa3 Bc2 Nf5 Qc7 Rh8 b8Q Bf3 Qbb7 Be2 Qd3 Rb8 Qa8 Rb4 Qcb8 Rd4 Qab7 Nd6 f5+ Ke5 f6 Ke6 f7 Nf5 Qf4 Rh7 Ba4 Rg7 Qh1 Rg6 Bc6 Qd6 Ba5 Bd2 d8B Bb4 Qff3 Ba3 Bb4 Qg3 Qhd1 Be1 Qh1 Bd2 Rh8 Bd7 Rfg8 Bg7 f8Q Be5 Qfh6 Bc7 Rf8 Bb6 Rhg8 Be7 Qf4 Bg5 Ba4 Bc6 Bb5 Bg2 Bc6 Bh3 Bd6 Bc1 Bc3 Nh4 Nd2 Bc7 Rb8 Bb6 Bdb4 Nf5 Nb3 Bd2 Bb2
3R1b2/rr1Q1B2/3N1B2/Q1N1N1q1/KBnkP3/1N1p3n/1bp1b1n1/N1Q2R1B b - - 0 1 illegal: No proof kernel
1Q1Qn2n/R5Bq/Q4r1b/1N3r2/1k1prB1P/3pNN1Q/2NQ3b/RB1K1b2 b - - 0 1 illegal: Other
r2Q1k2/2nR1B2/rr3NR1/4nb2/1RP1RQ1n/b1BB2pN/2KpB2R/1N5q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 h4 d5 e4 f5 b4 a5 c4 a4 b6 f4 b7 g4 e6 f3 e7 d4 c6 g3 e5 f2 h6 a3 h5 d3 b5 a2 c7 Qd7 b6 Qd8 h7 Ra6 h6 Nf6 Rh2 Nfd7 Be2 f1R Bb2 Nf6 Bc3 Qd7 Nh3 Nc6 b8R Ng8 b7 Kf7 e8B+ Ke7 e6 Nb4 Bf7 Nd5 Kc1 Kd6 e7 Qc6 e8N+ Ke7 Nf6 Bf5 c8B Nc7 Bce6 Rb6 Rd8 Rg1 b8R Qh1 Qf1 d2+ Kd1 Ra6 Rb4 Rb6 Bd3 Ra6 Kc2 Rb6 Ne4 Nf6 Qf4 Ng4 Nf6 Ne5 Re2 Rg8 h8Q Re1 h7 Ra6 Na3 Rb1 Re4 Rb3 Bh5 Rb1 Bhe2 Rb3 Re1 a1N+ Kd1 Nc2 Nb1 Nd4 Bf7 Nf3 Kc2 Nh4 Rf1 Bg7 Rd7+ Kf8 Rf2 Bh6 Rh2 Bg5 Ng4 Be7 Qf6 Na8 h8R Nc7 Rh6 Bd6 Rg6 Bc5 Ra4 Ba3 Q6g5 Rh8 Nf6 Rbb6 Rb4 Rh6 Ne8 Ra8 Qd8 Rba6 Rg5 Rhc6 Rg6 Rcb6 Nf6+
NB1b2B1/r6B/4b2K/q4BnP/N2Npb2/1Q4N1/pQ1n3Q/1kBRRr1n b - - 0 1 illegal: No possible last move, all moves rejected
3n1RK1/2nr4/B1B2rb1/5NNP/1qp2BR1/b1BkpBQ1/2Qn2Q1/1Q2b2R b - - 0 1 illegal: No possible last move, all moves rejected
1K1b2rn/1R2B1kr/3B2b1/3RQ1Pn/2Rq4/BB1RB2p/2Np4/n2QrQN1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 b4 d4 c4 d3 g4 e6 f4 h4 c6 h3 b6 a4 c5 a3 f6 a2 c7 Rh6 f5 Rh8 b5 Bd7 c8Q Rh6 b7 Ra4 g6+ Ke8 c6 Bb4 g7 Kf7 b6 Rh5 g5 Bc5 c7 Bc6 Na3 Be4 Be3 d2 Bc4 Ne7 g8R Rb4 Bb3 Bd5 Nc2 Qd7 Rd8 Na6 b8B Bc4 b7 Qa4 Rd3 Bb6 Kd6 e5 Qd8 e4 c8R Bd5 Rc4 Rh7 Qc7 Kf8 f7 Kg7 Qc8 Nc7 f8B+ Kh8 f6 Ne6 f7 Ng7 Qf5 Nh5 Rb1 a1N Qff1 Ng6 Be7 Bd8 f8B Bf7 Rcd4 Kg8 Rd5 Nh8 Bc7 Rb5 b8Q Bg6 Kc6 Rc5+ Kb7 Qd4 Bcd6 Rc3 Ba3 Rc8 Qe5 Ra8 Rh2 Rc8 Rg2 Ra8 Rg4 Rc8 Bf2 e3 Rh4 e2 Be3 e1R Re4 Rc6 Kb8 Re6 Bed6 Re8 Bfe7 Rf8 Bc4 Re8 Rb7 Rf8 Bb3 Re8 Qe6+ Kg7 Rg4 Rg8 Qef5 Qc5 Rc4 Qd4 Qe5+
4nr1k/1bb2r2/QN2q1Q1/5pKb/B1NPN3/nR1BB2N/1Nn1p3/3Q2RQ b - - 0 1 illegal: No proof kernel
1R2b3/NB3N2/Nb1rR1K1/1Q2pNP1/R5r1/q4Q1B/Rp1B1rNn/1k3b1n b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 g4 Kb4 d4 c5 a4 h5 g6 b5 Kg5 e5+ f6 c4 f4 c3 g7 h4 d6 c2 d7 Kb3 d5 b4 d6 h3 a6 h2 f5 Nh6 g8N Bb7 a7 Be7 a5 Qc7 d8N Ba6 d7 Bd3 a6 Qc4 Ra2 Qf7 Nh3 Qe6 Nb7 Bd6 d8N Nd7 f7 Bc7 f8R Bb6 f6 Qc4 f7 Be2 Qd5 Rc8 a8B Nc5 a7 Bd3 Nc3 Rc6 Ne7 Rd6 Bd2 c1R Nf5 Rc2 Nb5 Ne4+ Kh5 Nf2 g5 Rb2 Nc5+ Kc2 Bb7 b3 a8R Qa4 Na6 Qa3 Na7 Kb1 Qb5 Rc2 Rg8 b2 f8Q Rc4 Nf7 Rg4 Bfg2+ Bf1 Nf4 Rh7 Rb8 Rh8 Rg1 h1B Bh3 Bc6 Rg6 Nh1 Re6 Be8 Rg3 Rh7 Ng2 Rg7 Rf3 Rg6 Rf4 Rf6 Ng3 Rf5 Ra4 Rf2 Kg6 Rgd4 Qe2 Ng4 Qb5 Nh2 Nf5 Rb4 Qh6 Rbd4 Qh5 Re4 Qhe2 Rg4 Qf3
bb1K2R1/1BNnn2N/1Q4R1/1pQPN1BN/kQnr1pB1/q2B4/6B1/3r1b2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Kf3 f5 Kf4 b5 e4 c5 a4 h5 g4 h4 d4 h3 e6+ Kd6 g6 h2 e5+ Kc7 g5 c4 a6 Kb6 d6 Ka5 e7 c3 e8B c2 e6 Be7 Ke5 Qc7 a7 Qb6 d7 Nh6 d8Q Na6 g7 Bd7 g8Q Nc5 g6 Bc6 g7 Bd7 Nh3 Bc8 Qe1+ Ka6 a5 Bh4 e7 Bd7 Rg1 h1B Bd3 Bdc6 Kd6 Bhf3 Bd7 Bg4 e8N Na4 Nc7+ Kb7 Nf4 Bg5 Qc4 Ng8 Qeb4 Nc5 Na3 Ne7 g8N Rh1 Nf6 Bh5 Nh7 Be2 Nh5 Bf1 Rb1 Bd2 Rg8 Qa6 Rb2 Bc3 Bg5 c1N Rg2 f4 Bg4 Nd7 Qcc5 Nb3 Nc4 Nd2 Ne5 Nc4+ Ke6 Rb8 Kf7 Bf3 Ke8 Qd6 Ne6 Ka6 a8B Rg1 Rg3 Bh1 Bg2 Rb7 Qb8 Rc7 Kd8 Ra7 B2h3 Ba8 d5 Rc7 Bg2 Bd4 Qa3 Rc6 Qcb4 Ba7 Qc7 Qc5 Qd6 Bb8 Nc7+ Ka7 a6 Kb6 a7 Qe3 Bdf5 Qc3 Qc1 Qa3 Bd3 Rh1 Qcb1 Rg1 Qbc5+ Ka5 Qb6+ Ka4 Qdc5 Bb7 a8B Re6 Ng6 Re4 Ne5 Rd4 Qe1 Bc6 Bb7 Rh1 Ba6 Ba8 Bb7 Be2 Qc3 Rd1 Qe1 Bf1 Qd2 Kb3 Qdb4+ Ka2 Be6 Rc1 Bf6 Ra1 R3g6 Rd1 Qd2+ Kb3 Bg4 Ka4 Bg5 Rb1 Qb2 Rd1 Qbb4+
1QB4Q/B2knKb1/n1rrr3/P1R1q1NQ/RQ6/p4b1N/p2BRRR1/3b4 b - - 0 1 illegal: Other
5bQ1/nQNK4/2QNN1P1/1b4rR/R3pN1r/n1RN1q1B/1b2k1pn/1Q4B1 b - - 0 1 illegal: No proof kernel
Qr1k1NBQ/R1r4b/3r1pN1/1N3n2/6QP/n1q1NpBK/1b1n1QR1/1R3N2 b - - 0 1 illegal: Other
bnR4B/1N1b1N1K/3np1RN/4b3/Q3BP1p/1q3Rrr/2NkB2B/1r2Q1B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kf4 d5 c4 a5 g4 d4 b4 a4 c6 a3 g6+ Kf6 g5+ Kg7 b6 a2 b5 h4 c5 d3 c7 e6 c6 d2 b7 Qf6 b6 Ra6 Na3 Bb4 Rh3 Ra7 Bb2 Bc5 Qe1 d1B Nf3 Ra8 Be2 Bb3 Nc2 Rh6 Ne5 Rh5 Nf7 Bd5 Rf3 Qc3 f6+ Kf8 g7+ Ke8 g6 Nd7 b8B Bc4 b7 Rh8 Kg5 Be7 Ba7 Qd4 b8B Nh6 g8B Qc3 g7 Qb3 Kg6 Nf5 Bh7 Bd6 g8N Be5 Ngh6 Nd6 Kg7 Bb7 c8N Bb5 Be4 Rg8+ Kh7 Rg3 c7 Ba4 Rd1 a1R Rd5 Rb1 Rd1 Nb5 Ncd6+ Kf8 Ba1 Bd5 Nb7 Nd6 B1d4 Bb5 Bab6 Ra3 Rdd3 Rh3 Rg3 Ba4 Rg6 Bac6 Rf3 Rg3 B8a7 Nb8 c8R+ Be8 Bc7 Rh3 Nfd8 Bd7 f7 Ke7 Bab6 Bh2 Bh8 Be5 Nc5 Ba8 Ncb7 Bc6 f8Q+ Kd7 Qf5 Ke7 Qg4 Bd7 Bf5 Rg3 Qa4 Rh3 Rg7+ Kf6 Bg6+ Kg5 Be4+ Kh5 Rg1 Rg3 Bc5 Kg5 Ndf7+ Kh5 B7b6 Rg8 Rf6+ Qf3 Nf5 Rg5 Rf1 Kg4 Rg6 Kf4 N5h6 Qd3 Bd4 Qb5 Ba7 Rh3 f3 Qb3 Bb2 Bc3 Bg1 Bf6 Bh2+ Rgg3 Bd4 Be5 Bdg1 Bd4 Rf2 Be5 Na1 Ke3 f4 Bf6 Qf1 Bg7 Nc2+ Kd2 Rf3 Be5 Qe1+
3R2QN/5N2/K1p3rQ/2r1R1bQ/k1pN3B/P2bBNnr/2Q2nQ1/1b1B2q1 b - - 0 1 illegal: Other
r3R3/bK5B/p1NPk1p1/rB1n4/N1brBB2/3N2Rn/R2qR1Q1/1n1QR3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 Ke4 f6 d4 a6 b4 c4 h4 c3 h6 c2 b6 Ke7 b7 Kf7 h5 Qe7 d6 f5+ Kd5 f4 e4 f3 e6+ Kf6 e5+ Kf5 h7 f2 b5 Qc7 d7 Ba3 d8N Bb4 e7 Bc5 e8B Nd7 b8Q Bf8 b6 Bb4 e6 Nf8 h6 Qe7 Kc6 Ba5 d5 Bd2 d6 Bb4 b7 Ba5 Bf4 c1R+ Nc3 Bb6 Nh3 Ba5 Bb5 f1N Ra2 Bb4 Bg6+ Kf6 Be4 Ng3 Nf2 Nf1 Nd3 Ra1 Na4 Nd2 Re1 Nb1 Rae2 Qf7 e7 Ne6 e8B Ng5 Bd7 Ba3 Bdf5 Bc5 Qa7 Be3 b8R Be6 Qb7 Ne7+ Kc7 Ra3 Nc6 Nh3 Re8 Bc4 Bg6 Rf8 h8R Qd5 h7 Ke6 Rg8 Ba7 h8R Qd4 Bh7 g6 Ra2 Rf5 Rgf8 Rd5 Rf5 Qg1 Rg5 Qe3 Rg3 Rd4 Rhf8 Qc1 Rf5 Qd2 Rh5 Ng1 Rh2 Nh3 Rhe2 Bc5 Nb6 Ra5 Na4 Ba7 Qc8+ Kf6 Kb7 Nd5 Qg4 Kf7 Qf3 Kf6 Qg2 Kf7 Ne7 Ke6 Nc6+
4QrNB/B4n1p/2N4Q/2Pk1N1n/3Bnp1b/1R4Qr/B3q2N/bN1b1R1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 e4 Ke6 c4 d5 g4 f5 Kg2 a5 b4 a4 c6 a3 b6 f4 b5 d4 g6 d3 c7 a2 b7 d2 g7 Bb4 b6 Ra5 g5 Nh6 g8N Qd4 c5 Ba3 g6 Ng4 g7 Nh2 Bc4+ Qd5 Qh5 d1N Be3 Rb5 Qh6+ Kd7 e6+ Kc6 e7+ Be6 e8Q+ Nd7 b8B Nb2 c8N Qf5 b7 Qe5 Nf3 Qc7 e5 Na4 Bd4 Nc3 Rf1 Bb2 Ba7 Rb3 b8B Ng4 Kh1 Nf6 Nh2 Bg4 e6 Qe5 e7 Qe2 Bbe5 Ne4 Rf3 Ra3 Rb3 Bc3 Qeg6 Be1 e8Q Bh4 Nd6 Nh5 Bf6 Bf3+ Qg2 Bg4 Nf5 Bf3 Qf7 Bg4 Qg3 Ne5 Qfg6 Nf7 Nge7+ Kd7 Nc6 Rf8 g8N Kc7 Nc3 Kd7 Rf1 a1B Nb1 Kc7 Bd3 Kd7 Bc2 Ke6 Bh8+ Kd5 Bd3 Qd2 Bc2 Bd1 Bd3 Qe2 Bc2 Nd8 Qe8 Nf7 Rb8 Rf3 Bb3+ Qc4 Ba2 Ra3 Qg2 Rh3 Rb3 Qe2 Qg3
RrB1b2r/1Rq3Rp/nQp4N/4BNk1/n1R3Nb/KP6/6N1/1b1nQ1QR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Ke7 e4 f5 d4 a5 Kd2 c6 Kc2 f4 Kb3 f3 g6 f2 e6 Kf6 b6 Nd7 g7 Ne7 g8N+ Kg6 b7 Qe8 b8R Bg7 g5 Nf5 d6 Nf6 e7 Nh5 d7 Qd8 e8N Qf6 d8R Bb7 d5 Qe6 e5 Qc8 d6 Ne3 e6 Ra7 e7 Bh6 d7 Ng3 Bh3 f1B Nd2 Nd5 Ne2 Ba8 Nf3 Nc7 Nd6 Bg2 Bf4 Na6 Nh2 Bb7 Qg1 Be4 Ra4 Bb1 Rc4 Nf5 Bg4 Bg7 Nh6 Bf6 Re8 Ne3 d8Q Nd1 Qdb6 Qc7 Red8 Ra8 e8Q+ Kg7 g6 Bc8 Rb7 Bd7 Bg3 Bg5 Nf4 Kf6 g7 Bh4 Ng2 Kg5 Qee1 Be8 Be5 Rc8 Bd7 Ra8 N2g4 a4+ Ka3 Nb8 Kb4 a3 Ndf5 a2 Be6 Na6+ Ka3 a1N Rdb8 Nb3 Bc8 Nbc5 g8R+ Bg6 Rg7 Na4 Re7 Be8 b3 N6c5 Ra7 Na6 Rbb7 Rb8 Ra8 Qd7 Rf7 Qc7 Rg7+
1Q1K1kNb/R2Nr1p1/3nBn1B/1r4Qb/BR2P1q1/R1NB2p1/5N2/1N3b1n b - - 0 1 illegal: Other
N1Nq1Rb1/2N2P1B/K4nRr/R3bn2/1p2rp1R/1kBQ2b1/2B1rR1B/4Q3 b - - 0 1 illegal: No proof kernel
1KR3QR/2r2PnN/kB2p3/1b1p3B/1QB1r1q1/bR3n2/1Q1RN1b1/1B2n1B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 a5 Kd3 d5 Kd4 Kd7 Ke5 Kc7 f4 Kb7 g4 h5 c4 a4 b4 a3 g6 a2 f6 h4 f5 h3 f7 h2 c6+ Ka7 g5 Rh3 b6+ Ka6 g7 Ra3 c5+ Rd3 f6 Bd7 c7 Kb7 c8B+ Kc6 b7 Kb5 c6 Bh3 g6 Qa5 c7 Ra6 Be3 Qb6 Bg4 e6 c8R Qa7 Bh5 Qc5 Qa4+ Kb6 b5 Ra3 Nc3 Nh6 g8Q Nf5 g7 Ra8 Ne4 Ra7 Ne2 Na6 b8Q+ Rb7 Rd1 a1N Ng5 Nc7 Bg1 Nd4 Qb4 Rg3 Rd2 Na6 Nh7 Rg4 Qb2 Be7 f8B Qc4 f7 Ba3 Bc5+ Ka5 Kd6 Re4 b6 Rc7 b7 Nac2 Nf8 Nf3 Nh7 Nab4 Bcf2 Ka6 Bb6 Nd3+ Qb4 Rc5 Kd7 Ncd4 Qe5 Rc6 b8R Nf5 Qeb2 Rc7+ Kd8 Ra7 Rb7 Nde1 Kd7 Qd4 Kc7 Bg2 Kb8 Bh3 Rd7 Rc7 Rd6 Qc4 Rc6 Qd4 Rc3 Qc4 Rb3 Qd4 Qd8 Qc4 g8B Ng7 Ng5 Bg2 Bh7 Bh3 Qg8 Bg2 Nc3 Bh3 Bd3 Bf1 Bf5 Be2 Nh7 Bf1 Bb1 Qd4 Bh3 Bb5 Bf1 Qc4 Bgc5 Qd4 Bc4 Qg1 Ne2 Qg4 Rf1 h1B Bg1 Nh4 Rf6 Bg2 Rh6 Nhf3 Nf8 Nh2 Rh8 Nhf3 Nh7
n1Q1B3/Qr2np2/1pB1N2P/r1RR1B2/4Knbq/b1B3QR/kbB4N/R7 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 c5 d4 g5 h4 c4 a4 b6 e6+ Kd6 e7 g4 e8B c3 a6 g3 a7 g2 h6 c2 h7 Ne7 a5 Qc7 a6 Ng6 h5 Bg4 h6 Qb7 Bb2 c1B+ Nd2 Bf3 Nh3 g1N Qb3 Bg7 Ng5 Bg4 Bc3 Bd7 Bh3 Be6 Bf5 Nf3 Bc6 Nfe5 Ke4 Nd3 Ndf3 Ndf4 Rh3 Re8 h8Q Be5 Nh2 Re7 Qc8 Bd7 Ne6 Re8 e3 Ke7 d6+ Kf6 d5 Ba3 Ba4 Bb5 d7 Ng2 d8R Qe7 d6 N2f4 d7 Be2 Bc6 Rh8 Re8 Bh5 d8R Bg4 Rd5 Qd8 Rg8 Ne7 Rg5 Bd4 Bd2 Bdb2 Rgh5 Ng8 Bc3+ Ke7 Rc5 Kd6 Ba4 Qh4 Bc6 Nd7 Ba4 Rb8 a8B Ne7 a7 Nf8 B8c6 Rb7 a8Q Rg8 Qa7 Rh8 Ng7 N8e6 Rg5 Nc7 Ne6 Bb4 Qa3 Na8 Bc2 Re8 Qa2 Rg8 Qb1 B4a3 Qe1 Bd1 Rh5 Rg2 Qg3 Bg4 Kd4 Re2 e4 Rd2+ Ke3 Rd4 Rg5 Ra4 Rh5 Ra5 Kd4 Nd5 e5+ Ke7 Ke4 Be2 Ng5 Bg4 e6 Kd6 e7 Bf3+ Kd4 Bg4 e8B Ne7 Ke4 Bc1 Rc4 Bcb2 Rd4+ Kc5 Bh7 Nd3 Rd8 Kc4 Ne6 Nf4 Re5 Bh5 Bf5 Bg4 Bb1 Kb3 Rc5 Bh5 Rdd5 Bd1 Bd3 Bg4 Rg1 Ka2 Bc2 Rb8 Rf1 Rb7 Ra1+
1kn2K1B/N2rp3/B1r2RP1/1N3B2/1Q3qQp/N4bbn/1Q1B1R1n/1r1B2N1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Kd3 Kd7 Kd4 Kc7 Ke5 a5 c4 h5 b4 h4 g4 a4 f4 a3 c6 a2 c5 d4 f6 d3 f7 d2 f5 Ra5 f6 Bh6 f8B Be6 b6+ Kc8 g6 Ra3 f7 Qe8 b5 Bd5 g5 Be4 Ke6 Rb3 b7+ Kc7 b6+ Kd8 g7 Rb2 g6 Bg5 Na3 Bc2 Qg4 d1N Rh2 Be3 Rf2 Be4 Ba6 Rb3 Bd2 Nf6 g8B Bh1 Bg7 Nb2 f8N Nbd7 Raf1 Rh5 Bh8 a1R Bf7 Bf3 Bg8 Ne4 Bf7 Nd6 b8Q+ Nc8 b7 Rb1 Qd6 Na4 b8Q Rd3 Qb2 Bf4 Qdb8 Bg3 Q8b4 Kc7 Bg8 Qd8 Kf7 Nab6 Ne6+ Kb8 Nd4 Nf6 Ndb5 Qd5+ Kf8 Qe5 Bb3 Rd7 Bd1 Nbd5 c7+ Ka8 c6 Nf4 Qf5 Ng4 Qe6 Nh2 Qg4 Na7 c8N Nh3 c7 Qf4+ Kg7 Rc5 Kg8 Nc6 Nca7 Rc4 c8B Kb8 Re1 Rc5 Re6 Rc2 Rf6 Rc3 Bcb7 Rc4 Kf8 Rcc1 Nc8 Na7 Be4 Rcc7 Bf5 Rc6 Ncd6 Nc8 Na7+ Rb6 Ndb5 Re6 Q4c3 Rc6 Qcb4
3nRnb1/B3p1qR/2rN1PkB/5n1Q/1bB1bQK1/R6Q/5p1B/RrN1B3 b - - 0 1 illegal: No proof kernel
1n2bQ2/npNr2bQ/2R3B1/k4p1N/1qn3PQ/1rRNB1K1/Nr1R4/2RR4 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 a4 h5 d4 c5 e4 Kc7 g4 f6 d6+ Kc6 g6 c4 a6 Kb6 e6 h4 g7 c3 a7 c2 e7 h3 e8Q h2 d5 Nc6 e5 Rh3 d7 Ka5 d6 Nh6 g8Q Ra3 e6 Qc7 d8R Qe7 d7 Rc3 Qe1 Kb6 a5+ Kc5 a6 Kb6 Bd3 Qg7 e7 Qf7 Be3+ Nd4 Kg3 c1R Ra3 R1c2 Ne2 Rb2 Nc1 Rcb3 Nc3 Bg7 Qh7 Ng8 Bg6 f5 Qf8 Qc4 e8N Qb4 N3a2 Ne7 Nf6 Nc6 Nd3 Nb8 Nh5 Kb5 Qf2 Ndc6 Rc1 h1N+ Kh2 Rb1 Qh4 Nf2 Kg3 R3b2 Rac3 Nd1 Re8 Rb3 d8R R1b2 Re6 Ka5 Rdd6 Bd7 Rd4 Ne7 Rec6 Be8 Rd7 Nc8 Rdd6 Nd7 Rd4 Rb8 a8N Na7 Nc7 Rd8 Rdd6 Nb8 Rd5+ Nb5 a7 Rd6 Rd4 Rd7 a8R+ Na7 Rdd6 Rf2 Rd4 Nb2 Rd1 Nc4 Rdd6 Na6 Rc8 Nb8 Rcc1 Nb2 R6c3 Nc4 Rc6 Rd2 Rd8 Rdb2 Ndf4 Re7 R8d2 Rd7 Nd3
Qb1n3K/1pNrq2R/6R1/P1R1B2n/N3b3/kB2p1rN/Q1B1b3/1rB1N2N b - - 0 1 illegal: No possible last move
1bN1Q3/Ppr5/4R1NN/1R1B3p/1n5R/1qrNR1n1/b2RQ2r/k1B1KBb1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kd7 g4 Kd6 d4 e5 a4 h5 f6 c5 f5 c4 g6 e4 a6 e3 g5 e2 f7 c3 g7 c2 f6 Qe7 g6 Rh6 a7 Qd7 a5 Na6 Na3 Nb4 a6 Ne7 g8N Qc6 g7 Qc5 Nh3 Rh8 Nb5+ Kd7 d6 Kc6 d5+ Kb6 d7 Rh7 d8R Qd4 d6 Kc5 d7 Kc4 Rb1 Na2 Re8 Rb8 a8R Nb4 d8R Qb6 a7 Nf5 Re3 Ng3 Rd2 Be6 Nf2 Bd6 f8Q Rd8 f7 Bb8 Nd3 Rc8 Nd6+ Kc3 Qe8 Ba2 f8N Rc6 Kf2 e1R Nc8 Rc4 Rh4 Re2+ Kf3 Qb5 Ng6 Rh2 Nh6 Qa4 g8B Qb3 Qe2 Rhc7 Bd5 R4c6 Qg2 Rc5 Kf2 Rc4 Ba3 c1B Ke1 R4c6 Qe2 Rc5 Rd1 R5c6 Re6 Be3 Bc1 Bb6 Rd2 Bg1 Ra1 Bb1 Ra5 Ba2 Rb5 Rc5 Rd1 R5c6 Bd2+ Kc2 Bc1+ Kb1 Rd2 Ka1 Re3 Qa3 Nb6 Rc3 Qd7 Qb3 Qf7 R7c4 Qe6 Bc7 Re8 Bd6 Nc8 Bb8 Qd7 Rc5 R8e6 Rc7 Qe8
4B1b1/2R2rQ1/RB4KR/3NbnNB/brq3B1/1n3pp1/P2q2kQ/B4R1N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kf3 g5 Ke4 c5 h4 b5 d4 g4 d6+ Ke6 d7 c4 a6 c3 a7 c2 d5+ Ke7 Kf5 g3 e4 f6 d6+ Kf7 e6+ Kg7 h6+ Kh7 h5 b4 e5 b3 e7 b2 e8B Na6 e6 Nb4 e7 Nd5 Qd4 Rb8 a8R Ba6 Be2 Qc8 Bg4 Qc3 d8B Qc6 d7 Nf4 Bb6 Nd3 d8Q Qc4 Nc3 b1B Nd5 Nc5 Nh3 Bb5 Nf2 Nb3 Ra6 Ba4 Rf1 Bg7 Nh1 Rb7 Bb2 c1Q+ Qe4 Q1c2 Qd7 Qd2 Be5 Bc2 Rac1 Rb8 Ba1 Bd1 Bg1 Rb4 Bb6 Bc2 Bf7 Bb1 e8B Ne7+ Ke6+ f5 Qa7 Qb5 Rc7 Qc4 Qd4 f4 Qf6 f3 Qh4 Bf8 Kf6 Nf5 Qb7 Bd6 Bg6+ Kg8 h7+ Kf8 Bgf7 Be5+ Kg6 Bc2 h6 Rg8+ Kh5 Rg7 h8N Bd1 Bg6 Rf7 h7 Kg7 Qa7 Re7 Nf7 Rd7 Nd6 Rf7 h8R Bc2 Rh6 Be4 Nf4 Bd5 Ne4 Be6 Ng5 Kf6 Qa8 Rg7 Qb8 Bg8 Qa7 Rf7 Qb7 Bb2 Nd5+ Ke5 Rc5 Kd4 Qe7 Kd3 Rc7 Be5 Qf6 Ke2 Qg7 Rd7 Bgf7 Re7 Kg6 Rd7 Be6 Rf7 Bh5 Nd6 Beg4 Nf5 Rf2+ Ke1 Rg2 Kf1 Rf2+ Kg1 Rf1+ Kg2 Qh2+
3QNNK1/3r2n1/B1n2q2/2qB1R2/2NR1BpR/Q2r1Bp1/1bb1BPRr/3k4 b - - 0 1 illegal: Other
KR3bb1/1nqBQ2R/k1B2N2/1QB3rP/1B5n/ppr2B2/2N3qr/Q2Q2N1 b - - 0 1 illegal: No possible last move, all moves rejected
8/b4R1Q/r2r1nbK/k1q2Q1p/3N4/NN5Q/PQN1BpbB/1n1qRQB1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Ke3 b5 Kf4 h5 e4 f5 g4 c5 d4 Kc7 a6 Kb6 a7 c4 d6 b4 d7 b3 g6 b2 d5 c3 g7 c2 e6 Nc6 d6 Na5 e5 Rb8 a8N+ Kc6 g5 Qf6 d8B Bd7 e7 Kc5 e8Q Kb4 g6 Bb5 d7 Rc8 e6 Be7 Nd2 b1B Ngf3 Rc3 Ne1 Re3 Qf7 Rh6 Nb6 Rh7 Bc7 Re5 d8N Rh8 Nb3 Bc5 e7 Re3 e8Q Nc4 Ne6 Rh3 Qc8 Qd4+ Kg5 f4 Be2 f3 Be3 c1Q Qf5 Qa3 Bh2 Bd7 Nc2+ Kb5 Rf1 Nf6 g8Q Rh6 g7 Bc6 Qh8 Rh4 Qe1 Qd1 g8Q Rd4 Beg1 Rd6 Qgh7 Bb7 Qh3 Bd4 Q3f5+ Qc5 Qf2 Ba8 Re1 Bb7 Qf1 Bf2 Ned4+ Ka6 Nb5 Nd2 Nc4 Bd4 N4a3 f2 Qe6 Bf3 Qe3 Bg2 Qh3 Qc8 Q8g7 Ba7 N5d4+ Qc4 Qc7 Qb5 Qcc3 Kb6 Qb2 Qc5 Nb4 Bbe4 Rc1 Nb1 Rc3 Bd3 Nbc2 Bde4 Qe5 Bg6 Rf3 Ng4 Rf7 Nf6 Nba1+ Ka5 Qef5 Ra6 Qg7 Rh8 Qh7 Rd8 Kh6 Rdd6 Nab3+
2r2bb1/4kB2/1BQ1Bq1Q/1N2qRpN/n1p5/2b3N1/rP2Q1BR/3n1BQK b - - 0 1 illegal: No proof kernel
2QB1q2/2Nn1bBN/1n1r3R/R1N1pKB1/BNQb1P2/4p2r/3k1Qq1/1B4q1 b - - 0 1 illegal: Other
n1bk2Q1/2N1q3/3b2Rr/Q1p2B2/RB1Br1B1/4q1pP/Q1B1qN2/1KQ2n1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 a5 Kd2 g5 Kc2 c5 b4 f5 e4 g4 b6 f4 d6 g3 b5 a4 d7+ Ke7 e6 a3 d5 f3 d6+ Kf6 b7 a2 e7 f2 e8B Ra7 e5+ Ke6 h6 Ra4 h7 Ra8 b6 Na6 b8Q Qh4 d8R Qh6 b7 Qh4 d7 Ke7 e6 Qe4+ Bd3 f1Q Bd2 Ra7 Bb4 Qe5 Na3 Qfe1 Bh5 Q5e4 Nh3 Bg7 Nb5 Qg1 Nf2 Bf8 h3 Qf3 Qa8 Qh2 b8Q Qf7 Qc1 Nf6 Nc7 Qe8 Bf5 Nd5 Bhg4 Ne3+ Kb2 Qf7 Qb6 Rb7 Qa5 Nf1 Kc2 Rb6 Qa7 Rg8 h8B Rg6 Be5 Rh6 Bd4 Rd6 Kb2 Rd5 Qa8 Re5 Bc2 Re4 Re8+ Kd6 d8Q+ Qd7 Qdg5 Qe7 Qg8 Qg2 Bf5 Qf3 Qa7 Qe2 Rd8+ Kc6 Rd5 Qe3 Bg4 Qe2 Rg5 Kd6 Rg6 Kc6 Nd5 Nc7 Bf5 Na8 Nc7 Qd7 Bg4 Bd6 e7 Qe6 Bf5 Kd7 e8B+ Kd8 Bd7+ Qe8 Rb1 Qe3 Ka1 Qf8 Rb3 Qe2 Ra3 Qe8 Ra4 Qf8 Kb2 a1Q+ Kb3 Qc3+ Ka2 Qa3+ Kb1 Qae3 Bg4 Qe8 Bdf5 Qf8 Q7a6 Qe8 Qac4 Qf8 Qa2 Qe8 Qge6 Qe7 Qg8+
1QB2QQ1/1K3NQ1/7P/q5r1/1bNB1p2/1R1b1npN/2rk3N/nq1n1RBQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 c5 Ke4 g5 h4 a5 d4 a4 b4 c4 b6 f6 h6 c3 h5 c2 d6 Ke6 d5+ Kd7 b5 a3 b7 a2 b6 g4 h7 g3 e6+ Ke8 d7+ Ke7 h6 Kd6 e7 Kc5 e8N Kb4 d6 f5+ Kd5 f4 e4 Ra7 e5 Na6 Kc6 Bg7 b8Q Rb7 e6 Qf6 d8Q Qe5 d7 Qa5 e7 Qh5 Qbc7 Be5 Nd2 Kc3 Nf6 Qh2 e8Q Bd6 Qf8 Nc5 Rb1 a1N Bh3 Ncb3 Nc4 Bb4 Ng4 Nf6 Be3 Rg8 h8B Qd2 Nh2 c1Q Qde8 Qcb2 d8N Bf5 Nf7 Bd3 Bc8 Rg5 Nh3 Qbc1 Rb2 Qb1 Rf1 Qe1 Qcd7 Nd2 Bg1 Nf3 Qed8 Ra7 b7 Ra2 b8Q Qe5 Bg7 Ng4 Kb7 Nf2 Q7e7 Bf5 Q1d5 Nd1 Rb3+ Kc2 Qc6 Qa5 B7d4 Bd3 Qef6 Kc1 Q6g7 Rc2 Qfg8 Qd5 Qdf8 Qa5 Nb6 Kd2 Qe4 Ne1 Qh1 Nf3 Nc4+
r2Q1N2/q2b1Q2/qNr2bPB/pkB3N1/3pBK2/5B1N/2nR1RQ1/1N1n3r b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 a5 Kf3 h5 c4 e5 g4 d5 b4 Kd7 b6 Kc6 f6 d4 g6 h4 b5+ Kb7 f7 h3 g5 h2 g7 e4+ Kf4 e3 g6 e2 Ra2 e1Q Qe2 Qd7 Nh3 Qc6 Rd2 Rh5 Bg2 Be7 f8N Bf6 Rf1 h1R Be4 Qd5 Ne6 Rh8 Neg5 Bf5 c6+ Kc8 c7 Kd7 c8B+ Kd6 b7 Kc5 b6 Nh6 g8Q Bg7 Qf7 Kb4 c5 Ng4 c6 Nf6 c7 Nbd7 b8B Qb3 b7 Nb6 Ba7 Ng4 b8Q Qd3 Bcb7 Nc4 c8N Nge3 Nb6 Nb2 Qd8 Nbd1 f3 Rc8 Qg2 Nc2 Rff2 Kb5 Bed5 Qdf1 Kg3 Bd3 f4 Bf5 Qff8 Rh7 Bf3 Rc3 Ne6 Ra3 Bb8 Rh2 Re2 Rc3 Bd6 Rh1 Qg8 Rc8 Bc5 Ra8 Qgf8 Bg4 f5 Be5+ Bf4 Rc7 f6 Bf5 f7 Bf6 Bbd5 Ka6 Rd2 Rc6 Bh6 Qb5 Neg5 Qe7 Qg8 Qa7 f8N Bd7 Kf4 Qf1 Qf7 Qb5 Na4 Qbb7 Bde4 Kb5 Nb6 Qaa6 Ngh7 Qba7 N7g5
QB1q1B1r/b1q4B/3BpRb1/4NR2/1p2n1NQ/k1PN3K/n2r3N/Rn5B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 h4 g5 a4 b5 f4 d5 Kf2 Kd7 Kg3 Kc6 h6 g4 h7 e6 h5 b4 f6 d4 f5 d3 a6 d2 h6 Qd5 f7 Qa2 a7 Bd7 a5 Kd5 a6 Qc4 f6 Ne7 c6 Kc5 c3 Nd5 c7 Nf4 c8R+ Kb5 Nh3 Nd3 Rc5+ Kb6 Qe1 d1N Rf5 Qd5 Bf4 Kb5 Nf2 Bc6 Nd2 Nd7 Bb8 Rg8 h8N Qc5 h7 Ne3 Ng6 Rh8 Ne5 Nc4 Ndf3 Na3 Rh6 Ka4 Nh2 Nc1 Bd3 Na2 Qh1 Be7 f8B Be4 f7 Nb1 Rhf6 Ka3 Bc2 Qc6 Ned3 Bc5 Bfd6 Qc7 f8B Bd4 Kh4 g3 Kh3 g2 Nfg4 Nc5 Qe1 g1Q Qh4 Rg8 h8N Qd1 Ng6 Rh8 N6e5 Bf2 Rf3 Bg6 R3f4 Ne4 R4f5 Qb7 Bbc7 Rb8 a8Q Rd8 Bb8 Qc7 a7 Bg1 Qd5 Rd7 a8B Ba7 Qb7 Qg1 Qc8 Qgb6 Bd5 Qd8 Qc6 Qbc7 Qa8 Ng3 Bh1 Ne4 Bc5 Rd5 Bcd6 Rd4 Nb2 Rd1 Nbd3 Rd2 Rf2 Ng3 Ne1 Bf7 Bh7 Bg6 R2f5 Ne4 N1d3
Qqq1rb2/1Br1kR1R/1Q1p3B/KR1P2n1/1QBN2pr/6N1/1R2B3/1b1nB3 b - - 0 1 illegal: No possible last move, all moves rejected
B1NB1b2/Nb3R2/1Q1pNPRn/3q3r/1r6/1QNp2bQ/7n/K1NqBBk1 b - - 0 1 illegal: Other
5nN1/N2bN1RN/1kpNRQ1r/5Q1Q/Q1nbP3/2rq2B1/3pn1B1/3KB1q1 b - - 0 1 illegal: No proof kernel
bR4bQ/3RQ3/q1p3NR/2P2r1n/p2B1r2/N3k1NN/1BnN2B1/R2q2bK b - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Ke7 b4 a5 h4 g5 f4 d5 Kf2 d4 Kg2 d3 e6 Kd6 e7 d2 e8N+ Ke7 f6+ Ke6 b6 Kf5 h6 Ke4 b7 a4 b5 c6 h7 g4 h5 g3 h6 Bg4 b6 Qc7 f5 Ra7 f7 Qd8 c5 Qc7 f6 Qd7 Nh3 Ra5 Qe1+ Be2 Bb2 d1B Nd2+ Kd3 Nc7 Qc8 Nb5 Na6 b8R Bg7 f8R Bb3 f7 Nf6 b7 Ke3 Rd8 Nh5 f8N Nb4 Na3 Rb5 Ng6 Nc2 Rd7 Rb4 Ngf4 Rf8 h8N Bg8 h7 Bd4 Nhg6 Rf5 h8Q Rc4 Kg1 g2 Qh4 Bd3 Ne2 Rb4 Ng3 Ba6 Ra8 Rc4 b8B Bb7 Be5 Rb4 Rb8 Ba8 Qe7 Qa6 Nf2 Nf4 Rh6 Nh5 Kh2 g1Q+ Kh3 Be6 Bg2 Qd1 Kh2 Bg8 Nh3 Kd3 Rdb7 Bg1+ Kh1 Ke3 Rd7 Rbf4 Bed4+
1q2B3/kN5K/qPQR3B/n1R1B2R/3pN2B/2bp2br/Q1Nrn3/2B2b1N b - - 0 1 illegal: Other
BQ1B1qBk/1n3r2/PK2R1rQ/8/2N1Rpn1/bBq5/2R2pn1/Rb1NNB2 b - - 0 1 illegal: Other
3QR2N/1bBK4/P4p1Q/q1N1pn2/4Qqkb/q4Qrn/B1B5/QR1NNr2 b - - 0 1 illegal: No proof kernel
NqBrkQ2/4n3/prqBQr1Q/4Kb2/1B2B3/P2R4/2QbNp2/2Q1RnR1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 fxe5 Bf5 cxd5 Nh6 b4 Ng8 bxc5 Bc8 Kf2 b5 Kf3 g5 Ke4 f6 d4 g4 h4 b4 a3 g3 d6 b3 c6 g2 d5 b2 e6 f5+ Ke5 f4 e4 a6 e7 f3 c7 f2 d7+ Kf7 e8Q+ Kg7 h6+ Kh7 h5 Qh4 d8B Ne7 d6 Kg8 d7 Nd5 h7+ Kg7 Nd2 b1R Ne2 g1Q Nc4 Nf6 Qe6 Qhh2+ Bf4 Qg6 Rg1 Rb6 Bg2 Rb1 Qc2 Be7 h6+ Kf8 Nb6 Rb2 Rae1 Rg8 h8Q Qf7 h7 Bb7 c8B Bb4 Bc7 Nd5 d8R+ Qe8 Bd6+ Ne7 Rd7 Bd2 Bb4 Qh6 Qec4 Qc6 Rd3 Qd8 Q4c3 Ke8 Qg7 Nd5 h8Q Rf8 Qhh6 Ne3 Qc1 Rf6 Q3c2 Nf1 Bg3 Ra7 Na8 Qdc7+ Kd4 Rb1 e5 Rb2 e6 Rb1 Bc3 Rb6 e7 Qd8+ Bd6 Qdc7 Bch3 Bc8 Bcb4 Bf5 Be4 Qc8 Bg4 Rd7 Ke5 Rd8 Bh3 Nd7+ Kd4 Nf8 Ke5 Qb8 Bg4 Ne6 Bh3 Nf4 Bg4 Kd7 Bh3 Nd5 e8Q+ Kc8 Qeg8 Ne7 Q8f7 Kd7 Qe6+ Ke8 Qd5 Bh7 Bc8 Bg6 Qe6 Bf5 Qf8+
NB1Q4/R3n2P/p1k1bqp1/NqN1bRn1/1brQ4/2N1Q3/2KBN3/1B2Q1r1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 f4 e5 d4 c5 Kd2 g6 h4 e4 d6 c4 f6 c3+ Kc2 e3 f5 e2 h6 e1Q h7 Qe6 d5 Nc6 h5 Nh6 f7 Qe4+ Bd3 Qe2+ Bd2 Bg7 f8Q Qf2 b6 Na5 b7 Qg3 b8B Qe7 b5 Qf7 f6 Qe7 b6 Nb7 f7 Nf5 h6 Qf2 Qe1 Qg5 Ne2 Qgg1 Rh5 Rg8 h8Q Ng3 h7 Qfh2 Rf5 Nc5 b7 Be5 Qh6 Qgf2 Qe3 Qh5 Qg7 Ne6 f8N+ Kd8 d7 Ng5 Qh8 Ke7 d8N Be6 d6+ Ke8 Rf7 Qf6 Nc6 Nf5 Nd7 Ne7 Na5 a6 Nb6 Rf8 d7+ Kd8 Qg7 Ra7 Na8 Re8 Kc1 c2 Nbc3 Rf8 Kb2 c1B+ Kc2 Ba3 Rb1 Bc5 Rb5 Bb4 Be4 Bf4 Rf5 Be5 Bd5 Re8 Ba2 Rf8 Bb1 Re8 Bd6 Rf8 b8N Rc7 Qd4 Rc4 Qh6 Qf3 Qh3 Qd5 Qhe3 Qb5 Qd5 Bd4 Bf4 Be5 Qdd4 Nd5 Rg7 Rf7 Bg3 Ke7 Bh2 Kd6 d8Q+ Rd7 Qc8 Rdc7 Nd7 R7c6 Qd8 Rc7 Nb3 Kc6 Ndc5 Rc8 Ra7 Ne7 Qdh4 Rg4 Qhf2 Rg1 Bg3 Bd4 Bb8 Be5 Qff4 Rc7 Qfd4 Rc8 N5e4 Rc7 Qdd3 Rd7 Nec5 Rd4 Qc4 Re4 Qcd3 Rc4 Qde4+ Bd5 Q4d4 Be6 Na5+
3Q3b/B3rQ1p/RQQN1nr1/1BB5/q1R1N3/Nn2Kpb1/BBq3P1/kb6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 f5 e4 c5 b4 a5 b6 c4 b5 f4 d6 Ke6 g6 a4 d7 c3 b7 a3 d5+ Ke7 b6 f3 g7 a2 e6 Kf6 e5+ Kf5 e7 Ke4 e8N c2 e6 Bd6 e7 Ra4 Ne2 Ra6 Be3 c1B Qa4+ Kd3 Rh4 Nh6 g8B Bda3 d6 Qc7 d8B Nf7 d7 Bcb2 Bc1 Nc6 b8Q Be5 b7 Nh6 Re4 Ra7 Nd6 Bab2 e8Q Na5 Rh4 Qc4 Qc6 Kc2 Nec3 Bg3+ Ke3 Kb3 Bd5 Rg8 Bb6 Rg6 d8Q Ng8 Bc5 Bf5 Qf7 Bc2 Qbc7 Be4 b8B Bf5 Na4 Bh8 Nac3 Nf6 Q7b6+ Kc2 Be6 Re7 Ba7 Qb3 Bb5 Be4 Bd2 Bd3 Ra4 Kb2 Nce4 Bc2+ Nbc3 Bd3 Rc1 a1Q Nb1 Qd1 Rc3 Qa3 Ba2 Nb3 Ra6 Qa4 Bc1+ Ka1 Na3 Bb1 Rc4 Qc2 Bb2+
1q1R4/BQ2Q1PB/1n4k1/1N2Bpb1/n1QRb1r1/p2R1R2/B3rN2/K2B2bq b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 h5 e4 c5 d4 f5 Kd2 Kf7 Kc2 a5 Kb2 a4 g4 c4 g6+ Kg7 e6 h4 b6 h3 b7 h2 g5 Qa5 b5 Rh4 b6 Qd2+ Qc2 Qd3 d6 Qd2 e5 Nd7 b8B Be7 d5 Qe1 b7 Nh6 Na3 Qa5 Be2 Ng4 Ba7 Nb6 b8Q Bd7 Nb5 Nf2 Bf4 Qe1 Bd1 Qe2 Ra3 c3+ Ka1 Rh7 Nh3 Ne4 Qb7 Nc8 Rf1 h1Q Rf3 Nf6 Nf2 Be8 d7 Rb8 d8R Qef1 d6 Ne4 d7 Bc5 e7 Nb6 e6 Rh2 Rb3 Bf7 e8B a3 e7 Bd5 Bf7 Rc8 Qc1 c2 e8Q Nc3 Qe7 Nca4 Rbd3 Be4 Bg3 Rc6 Be5+ Rf6 Qf4 c1B Rd4 Qh3 Rdd3 Qh8 Rd4 Qg8 Ba2+ Kh8 g7+ Kh7 Qh4+ Kg6 Qf4 Qh8 g8B Re6 Qh4 Rg2 Qf4 Rg4 Rdd3 Kh5 g6 B5e3 g7 Kg6 Rb8 Bc5 d8R B1e3 R8d4 Q8h2 Qg3 Bg5 Qh4 Qg3 Rbd8 Qf4 Bf6 Qb8 Be5 Bd6 Bf6 Bh2 Be5 Bg1 Qh2 Rc6 Qf4 Rc2 Qc1 Rb2 Qc4 Re2 Bh7+
3qBN2/4b1p1/r1n1b1R1/2N3Rp/qnB1N3/QNK1PR2/1RR1r2Q/2B2bk1 b - - 0 1 illegal: No possible last move
2N1k1Nn/1r1bB1pQ/3K1R1q/3BPq1q/5n1B/RB3pbB/3rQQ2/3Q2N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 Kd3 f5 Kc4 f4 Kd5 a4 h4 f3 c4 a3 b4 a2 e4 d6 e6 Ke7 c6 Ra7 e5 Nh6 c5 Rc7 b6 Qe8 b5 Kd8 b7 Qd7 e7+ Ke8 b6 Nf5 h6 Kf7 e8B+ Ke7 h7 Rg8 h8Q Ng3 h5 Qf5 h6 Rd7 h7 Ne2 c7 Qh5 c6 Na6 b8B Qg5 b7 Qe3 Bf7 Qg5 Nc3 Nc5 Bh3 Qh6 Ne4 Ne6 Nf6 Nd8 Bg5 Qh5 Bfe6 Nf7 Bh4 Rd8 Rh2 Bd7 c8B Qh6 c7 Nf4+ Ke4 Qh5 Bb3 d5+ Kd4 Qh6 Kc5 d4 Bhe6 d3 Bed5 d2 Rg2 Bf5 Rg6 Bd7 Ba7 Qh5 b8Q Qh6 Qe2 d1Q Qb6 Qd3 Qd1 Qe4 Qa6 Qf5 Qae2 Bb5 Bce6 Bd7 Bb8 Qfh5 Bh3 Qf5 Ba7 Rb8 Qf2 Rb7 Bb8 Qfh5 c8N+ Kd8+ Bd6 Be7 Qde2 Re8 Qf8 Nh8 Ng8 Bg5 Qf7 Re6 Qf6+ Ke8 Be7 Rd6 Qf5 Bf6 Qb1 Qf5 Qbd1 Bg5 Rb1 a1Q Rf6 Qh5 Rc1 Qa6 Ra1 Bh6 Ra3 Bg5 Bc6 Rd2 Bcd5 Qae6 Rf7 Qeh6 Rf6 Nfg6 Kd6 Bf4 Qfe1 Bg3 Q2f2 Nf4 Qee2 Nhg6 h8Q Qc2 Ra1 Qcf5 Qh7 Nh8 Ra3
2R1rRqB/b1QBqPp1/1N2q3/Rn6/8/2Qr2nB/1BN1RpbK/Q2k3B b - - 0 1 illegal: No proof kernel
1B2RR2/Rrq1pr1Q/nNN3b1/N1Q1R2B/3b1qn1/B3R2K/2qPp3/N4k2 b - - 0 1 illegal: Other
1BRBQ2q/r2BpNr1/3R3q/bQpP1K2/n2rB3/5Q1N/Q1Q3b1/k3N1n1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 g4 h5 f4 c5 f6 a5 f7 a4 g6 h4 g5 a3 d6 h3 f5 h2 b6 a2 f6 Ra6 d7 Ra4 g7 Nh6 g8B Ra5 g6 Rb5 g7 Ba6 b7 Qc7 d8N Qc8 Nh3 Qc7 Bg2 Ra5 Bd2+ Kc4 b4 Ra4 b5 Nc6 b8Q Qd6 b6 Qc7 b7 Ne5 Ba5 Nhg4 Kf5 Nd7 Be4 Qb6 d5 Rb4 Na3+ Kc3 Nc2 Kb2 Ne1 Bf1 Qa4 Nge5 Qc2+ Ka3 Qa7 Rh7 b8B Nf3 Qa6 Qc6 Qb5 Rd4 Rg1 h1Q Rg6 Bg2 Bb6 Rh8 Bh7 Qd6 g8Q Bg7 f8Q Ng1 f7 Qdh2 Rb1 a1R Qe8 Ra2 Qgf8 Rg8 Rd6 Ra1 B6c7 Nb6 Bg6 Bf6 Qg7 Bg5 f8Q Na4 Nf7 Bd2 Bd8 Ba5 Bh5 Ra2 Bg4 Ra1 Qh6 Rg7 Qhd2 Ra2 Nf2 Qh6 Nh3 Qh2 Rb4 Rb2 Qde2 Ka2 Qf3 Ka1 Qh8 Qd2 Qh4 Rb3 Qhf2 Ra3 Qcc3+ Qb2 Nhg5 Rd2 Qb7 Rg8 Rbb6 Qh6 Rbc6 Bb4 Ke5 Nb6 Rc8 Ra7 Nh3 Na4 Bd7 Ba5 Kf5 Rg3 Qc4 Qbh8 Qbb5 Rd4 Qfc2 Rg7 Q4a2#
1B1N3b/q1rqp3/P5pR/n1Q4r/n1QR1KBr/R1R5/k3N1NR/2QQ3b b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 h4 Kc5 f4 Kb4 a4 b5 d4 c5 h6 g6 a6 c4 f6 c3 d6 c2 d7 Kb3 f5 b4 a7 Qc7 d8N Qc6 f7 Nf6 a5 Qc7 h5 Bd7 a6 Bc8 h7 Bb7 h6 Qh2 d5 Qh4 d6 Ng4+ Kf4 Rg8 h8R Rg7 d7 Bg2 f6 Qf2+ Nf3 Rg8 h7 Qc5 Nh4 Nh2 Nc3 Qd5 Ne2 Bg7 f8Q Nf3 f7 Ng5 Rb1+ Ka2 Rb3 Qc5 Rhh3 Bh1 Rhc3 Qc8 Bh3 Nc6 Ng2 Na5 Bg4 Ne4 Bb2 Rb8 a8Q c1R Qa7 Rb5 Qc5 Rc2 Qc4 Nc5 Ba3 Bf6 Qh6 Na4 f8Q Rh5 Qg5 Qb7 Qgc5 Qa7 Qff7 Rf8 Qfe6 Rg8 Qee3 Bd4 Qec1 Re8 Rf8 Bh8 Rf5 Rh4 Rh5 Rg8 Rh6 Rf8+ Ke4 Rf5 Ke3 Rfh5 Kf4 Bf6 h8R Bg7 R8h7 Bh8 Rf3 Rc3 Bb2 Rc2 Be5 Rc3 Bb8 Rc2 Rbc3+ b3 Q4d4 b2 Rb3 b1Q Qdc4 Bg7 Rfc3 Bf6 Nb7 Bg7 d8R Bh8 Rd4 Qb2 Nd8 Qa3 Rf7 Qb4 Rf5 Qbb7 Re5 Qd7 Ree3 Rd2 Rh3 Rd3 Rh2 Rdh3 Qc7 Rc5 Qb6 Rc7 Qbb4 Rh5 Qbc5 R3h4 Ra3#
Rr1NrB2/2pK1B2/Q2Nn3/qNN2p1N/B5bb/2PQk3/1B1n3R/rRq5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 e5 a4 e4 axb5 e3 dxe3 Nf6 e4 Ng8 e5 Bc5 Qd3 Bd6 Qd1 Bf8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 a5 h4 f6 b4 a4 h6 a3 e4+ Kg6 h7 d6 c3 f5 e6 a2 b6 Ba6 b5 Bg7 b7 Nd7 Kc6 d5 b8Q d4 b6 d3 e7 d2 e8R Bf8 e5 Qf6+ e6 Qg7 e7 Bd3 h5+ Kf7 h6 Kg6 b7 Ra5 Qc8 Re5 b8N Ba6 Rh2 Ngf6 Nh3 Bd3 Na3 Ng8 Na6 Ngf6 Nc5 Re3 Rb1 a1R Qa6 Ng4 Nb5 Qf7 Ra8 Rg8 h8B Bg7 e8N Qa2 h7 Nf8 Ned6 Nf2 Bb2 Bf6 Bg7 Ne6 Bf8 Be2 Kd7 Bg4 h8N+ Kh5 g6 Ne4 g7 Bh4 Nf4+ Kg5 Qf3 d1Q Nh5 Qa5 Bc4 Qh1 Bb3 Nd2 Ba4 Qc1 Qd5 Re4 Qd3 Rb4 Ng6 Rh8 g8B Re4 Bf7 Re1 Bg7 Rb8 Ne7 Re2 Nc6 Re5 Ng3 Kf4 Nd8 Re3 Bf8 Re4 Qc4 Ke3 Nh5 Nf4 Rf2 Re8 Rh2 Ne6 Qd3#
6Nn/kP2NQ2/BN4b1/1Q1RqN1B/pK1br1qB/pnnR4/1RN5/5r1R b - - 0 1 illegal: Other
1r2n2Q/1P3BQK/2npqQBN/R2n1N1N/1BbB2p1/3Q2Qq/7b/r1k2R2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 b4 a5 f4 g5 h4 g4 c4 a4 b6 a3 b5 a2 h6 Bb7+ c6 Ba3 h7 Bc8 b7 Bd6 h5 Qb6 c5 Na6 b8Q Qa7 b6 Bc7 b7 Qb6 h6 Ra7 Bb2 Bd6 c7 Nb4 c6 Ra5 Nh3 Qa6 Nc3 Bc5 Nb5 Ba7 Bd3 Ra3 Nd4 Ra4 Rf1 Ke7 f6+ Kd6 Kf5 Kd5 Kg6 e4 f7 e3 f8B e2 f5 e1Q f6 Qe8+ f7 Qe5 Nf5 Qf4 Bd4 Qf2 Bd6 Qh4 f8Q Qb6 Qg7 Nf6 Bc2 Kc4 Nf4 Qh1 Nh5 Nbd5 Bb4 Qh3 Qd2 Rd8 h8Q Ne8 h7 Qa6 Bb1 Kb3 Nh6 Bc5 Qf6 Bd6 Qhg7 Bh2 h8Q Qe2 Kh7 Qe6 Bg6 d6 Qa7 Bd7 c8N Ra3 c7 Bb5 Ne7 Rb8 c8B Bc4 Nef5 Ra4 Rac1 a1N Qd3+ Ka2 Qa6 Nb3 Qg3 Na5 Rce1 Nc6 Re5 Nde7 Ra5 Nd5 Be1 Kb1 Bb4+ Kc2 Bd7 Ra1 Qb5 Qf7 Be6 Qd7 Bef7 Qe6 Rf2+ Kc1 Rf4 Bb3 Qbd3 Bc4 Rf1+
n2RBNB1/qpbQR3/RN6/rb3Q2/p1P1Bn2/k3q3/2nNrBN1/2K4B b - - 0 1 illegal: No proof kernel
2N2QKB/kp1Nq1R1/b2Q4/2pQn3/B3rNNn/P5b1/1b1Q3B/q3NrR1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 e5 Kc4 c5 h4 Kc7 d4 g5 f4 e4 a6 Kb6 a7 g4 d6 g3 Kd5 e3 d7 g2 Ke6 e2 Kf7 e1B d5 Qg5 a3 Bg7 h6 Bb4 f6 Qe5 d6 Qe2 d8Q+ Ka6 f5 Qc4+ Qd5 Qb5 h5 Qc4 d7 Bc3 h7 Ba5 h6 Ne7 Bf4 Be1 Nd2 Qe2 Bh2 Qd3 Nh3 g1Q Nf3 Ng6 Nf4 Qg2 Rg1 Bg3 Ne1 Re8 h8N Nf8 h7 Qf3 Nhg6 Bh4 h8B Re3 Ne5 Qh5+ Kg8 Qg5 f7 Qe7 f6 Nc6 Ng4 Ng6 f8N Re4 f7 Bb2 Qc7 Bg3 d8Q Rb8 a8N Bf5 Nb6 Nh4 Qcd6 Ka7 Nfd7 Ne5 f8Q Qc3 Bb5 Qc1 Ra2 Qa1 Ba4 Rc8 Qd2 Rc6 Q6d5 Rf6 Qc7 Rf7 Qcd6 Be6 Q5d4 Bc4 Q4d5 Bc3 Rc2 Ba6 Rc1 Bb2 Rc3 Bf2 Rcg3 Rf6 Nh6 Rf7 Rg7 Bg3 Ng4 Rf6 Ne2 Rf3 Nf4 Rf1 Nc8+
1N1qnQNB/P2r1n1b/B1p5/5N1Q/k3rQ1N/p3B2b/R2RKb2/q5QQ b - - 0 1 illegal: No proof kernel
6Q1/Pq1BN1p1/r3rNN1/1bbp1B1n/2N3QR/2BqN3/Qn4QR/n3k1K1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 f4 Kf7 Kf2 Kf6 h4 b5 a4 d5 c4 e5 c6 b4 h6 b3 h7 b2 a6 e4 c5 Qb6 a5 Qb3 c7 Qc4 c6 Qc3 h5 Nh6 a7 Na6 Bb5 Qe5 Ra2 Ng8 h6 Be6 c8B Nb4 a6 Bf7 c7 Ne7 Nf3 e3+ Kg1 e2 Rh4 e1N Nh2 Ng8 Ng4+ Ke7 f6+ Kd6 f5 Kc5 Bbd7 Kc4 Bd2 Kd3 Bc3+ Kc4 Na3+ Kc5 Nc4 b1Q Rah2 Qc2 Nge3 Ne7 Qg4 Be8 f7 Ng6 f6 Nbd3 Bf5 Qe4 Bcd7 Qe7 c8N Ngf4 Qg2 Rg8 h8N Nb2 h7 Nh5 Ng6 Qd3 h8Q Nc2 Qh6 Rh8 Qf4 Na1 Qfg5 Rh6 Q5g4 Qe6 Nce7 Qc6 Nd6 Qb7 Ndc4 Rc8 a8Q Rc6 a7 Re6 Qb8 Ra6 Qbf4 Re6 Qff1 Ra6 Qb1 Re6 Qa2 Ra6 Bde6 Bb5 Bd7 Re6 Nc8 Be7 f8N Bd6 f7 Be7 Be5 Kb4 Nh7 Bc5 f8Q Ra6 Nce7 Re6 Bb8 Kc3 Qg8 Ra6 Nh8 Rhf6 Nhg6 Rfe6 Nf6 Qe2 Na5 Kd2 Be5 Ke1 Nc4 Qd3 Bc3+
3N2Rr/p7/K4R2/N1kq1bn1/1R2n3/rP5Q/QBR2pq1/B1bBBrRN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 c5 Kd3 g5 Kc4 f5 e4 f4 h4 f3 e6 Kd6 e7 g4 e8R g3 h6 g2 h5 f2 e5+ Kd7 d6 Qh4 b3 Qg4 b6 Kc6 e6 Qh3 e7 Qg4 b7 Na6 b8R Bd7 h7 Bg7 h6 Bf8 Bb2 Qg5 Rb4 Qc1+ Qc2 Qd2 Be2 Bh3 d7 Qg5 d8N+ Kd6 Kb5 c4+ d5 c3 Nd2 Rc8 Nc4+ Kc7 Rc1 Qf5 Bd1 Kd7 Na5 Kd6 Ne2 g1R Ng3 Rf1 Rg1 Rc7 Nh1 Nc5 Qd2 Qh5 Rc2 Ne4 Ka6 Kc5 d6 Ng5 d7 Nf6 Ba1 Bg7 Rf8 Nfe4 e8R Bf5 Rf6 Qh3 Rg8 Qg2 Nf7 Rb7 d8B Rb5 Bc7 Bf8 Nd8 Bd6 Qe2 Bf4 Be5 Bd2 Bf4 Bc1 Bd2 Rb7 Bb2 Re7 Be1 Re5 Qh5 Rd5 Qe8 Rd4 Qa4 Rd2 Qa2 Rd4 Rbb6 Ra4 Rb4 Ra3 Rgg6 Rf8 h8B Re8 h7 Rg8 Re2 c2 Bg7 Re8 h8Q Rf8 Qh3 Rh8 Nc6 Bf4 Rd2 c1Q Nd8 Qc3 Rc2 Bc1 Rd2 Qcf3 Rc2+ Nc3 Bh6 Qa8 Rg8 Qad5 Bg7 Qe5 Ba1 Qed5 Rff8 Kd6 Rf7 Nce4 Bgc3 Kc5 Rff8 Rh6+ Rf6 Rh8 Bcb2+
B1rqBR2/pR2bn1Q/4KNR1/P6R/qBpr4/rn6/N1b2N1k/B2Q3B b - - 0 1 legal: proof: e4 b5 h4 e5 c4 g5 cxb5 f5 hxg5 Nf6 exf5 Ke7 d4 Ng8 dxe5 Ke8 Kd2 Ke7 Ke3 c5 Ke4 h5 Kd5 d6 f4 h4 b4 c4 a4 h3 g4 h2 b6 Qe8 g6 Qf7+ e6 Kf6 g5+ Ke7 a5 Nd7 g7 Qg6 b7 Rh4 b8R Qh6 b5 Qh8 f6+ Ke8 f7+ Ke7 f5 Ne5 g6 Kf6 e7 Nd7 e8B Nh6 g8B Qh7 g7 Qh8 b6 Rh5 b7 Nc5 Nc3 Na4 Bg2 Nc5 Bb2 Kg5 f6 Be7 f8B Nf7 Na2 Bf5 Nh3+ Kh4 Rb1 Kg3 Ba1 Rh4 Rb6 Bb1 Be4 Nb3 Ke6 d5 Bf3 Ba3 Bb4 d4 Bh7 d3 g8Q+ Rg4 Bhe4 d2 Qh7 Bc2 B4c6 Rd4 Bce4 Nh6 f7 Qg8 Bg2 Qg5 f8N Qd8 Nd7 Nf7 Rc8 Rb8 Nf6 Ra8 Rcc6 Rb8 Rb5 Rc8 Rf1 h1Q b8R Kh2 Rh5 Rd3 Rb7 Rf3 Bbc3 Be7 Bb4 Qg1 Bh1 Re3 Qb1 d1R Qc1 Rd2 Qd1 Rd4 Rcc5 Qg5 Rbb5 Rf3 Ng8 Nh8 Ba8 Nd2 Rb7 Ra3 Rf8 Nb3 Nf6 Nf7 Rh6 Qg2 Rch5 Qg5 Rg6 Qb5 Bbc3 Qb4 Bd2 Qb5 Bb4 Qa4 Nf2+
1b1K1R1Q/p3R2B/4PB1b/pN2B2Q/2r1R1Nk/N7/Nq2Nqn1/rn3R1b b - - 0 1 illegal: Other
R1RKR1Q1/pq1B2n1/P1rqbp2/2k5/2QR2bQ/1QR1B1r1/4B2n/N1N1q3 b - - 0 1 illegal: No possible last move, all moves rejected
4B2n/3b1r2/Q2N1kB1/B1bb2qp/RRRB1P2/3B1NQp/1b5K/Q2r1Q1n b - - 0 1 illegal: Other
1QbrR3/b1q2nRr/kr4Qp/3R1RB1/r4Q2/1NP2B1N/2n1KBp1/R4B2 b - - 0 1 illegal: No proof kernel
2N1BB1k/qb2Q1rn/R1QB3p/3b3r/3bRK1N/1P6/n3NQbp/QQ2N3 b - - 0 1 illegal: Other
7R/QB1qB1Kn/1Nr1Q1pR/k1P1B3/p1Rb4/1b3rr1/3RRn1N/1rQ3B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 e5 Kc3 d5 b4 Kd7 f4 Kc7 h4 a5 f6 g6 c6 Kb6 f5 e4 Kd4 e3 Ke5 a4 c4 e2 f7 e1R+ Be3+ d4 f6 Ne7 c5+ Kc7 h6 d3 h5 d2 h7 Qe8 b6+ Kd8 h6 Ra7 b7 Kc7 b5 Ra5 b6+ Kd8 c7+ Kd7 Nf3 Kc6 Na3 Be6 Ra2 Bg7 f8B Nc8 Qc1 d1R Rhh2 Qe7 Ba6 Rd2 Nc4 Qd7 Be7 Rh1 Bg1 Bd5 Re2 Rd3 Rad2 Bf8 f7 Qd8 Kf6 Nd6 Nh2 Rg3 c8Q+ Qc7 Qh3 Qd7 Qe6 Rg8 h8R Rb5 h7 Rbb3 Qh3 Rbf3+ Qf5 Bh6 f8R Be3 Re8 Rf8+ Kg7 Rf6 Qe6 Bd4 Re4 Qc8 Rh4 Nd7 b8Q Nf8 b7 Qd7 Nb6 Bc4 Qa7 Bb3 Qe3 Ne4 b8B Re6+ Be5 Nf2 Bb7+ Kb5 Qe4 Ref6 Qg4 Rc6 Qe6 Bb2 Rc4 Bc3 Rg8 Bd4 h8R Nh7 Rgf8 Ng5 Rh6 Nh7 Rcc2 Kb4 Rf4 Kb5 Rh8 Kb4 Re4 Kb5 Ree2 Kb4 Qb8 Ka5 Rc4 Qd5 Qc2 Ne4 Be3 Rb1 Qc1 Qd7 Bg1 Nf2 Qa7+
2K4B/B3rQqk/p1RQp2N/1Q6/bRn1P1R1/2Q1n1Qr/nN4b1/1B1R3n b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 b4 fxg5 b3 h4 e6 g6 Qd7 g7 Nf6 g5 Qe7 g6 Qd8 axb3 Be7 b4 Ng8 b5 Bg5 hxg5 Ke7 Rh6 Kd7 Rh1 Ke8 Kf2 f5 Kf3 h5 Kf4 c5 Ke5 h4 e4 f4 b4 h3 d4 a6 b6 h2 d6 f3 b7 c4 d5 f2 d7+ Ke7 b5 c3 b6 c2 Qf3 Ra7 Na3 Rh7 Ne2 Rh4 Qc3 Qe8 d8R Qa4 Rb1 Rh6 Ng3 Rh8 Bb2 c1N Rd6 Qa5 Rc6 Qb5 Nf5+ Ke8 Kd6 Ne7 Kc7 Rf8 g8Q Qd3 d6 Qc4 g7 Qd4 g6 Qd3 Nc4 Nb3 Nh6 Qf3 Bd3 Nc1 Rd1 Nf5 d7+ Ke7 Ba1 f1B Rb4 h1N Bb1 Qg4 Nb2 Na2 Qh7 Bg2 g8Q+ Rf7 g7 Ne3 Qf5 Qg6 Qb5 Rf3 Qh7 Qg5 g8R+ Qg7 Qhf5 Rh3 Qf4 Qd4 Rg4 Qg7 d8B+ Ke8+ Be7 Nd7 Bc5 Ne5+ Kb8 Qf6 Bd4 Kf8 Kc7 Ra8 b8Q N5c4 b7 Ra7 Qf3 Qf7+ Kd8 Bd7 Qbg3 Be8 b8Q Re7 Kc8 Qf6 Ba7 Qf7 Nf5 Qg7 Qbd6 Kg8 Nh6+ Kh7 Rg5 Bh5 Qf7 Be2 Rg4 Bd3 Qg5 Bc2 Qb5 Ba4 Qcf6 Na3 Nd3 Nac4 Bc3 Bf1 Nb2 Bg2 Qe8 Qg8 Qff3 Nc2 Bh8 Qg7 Qc3 N2e3 Qf7
1Nb2nKb/RRQ3QP/1N1nr1B1/1r1pRrk1/1Bq5/2Q5/2pQQ3/1rR3N1 b - - 0 1 illegal: No proof kernel
QNn5/2k2PN1/n1BN1K1R/rn2Q3/QBr3BB/1pq1bB2/b1np4/2N2R2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 g5 Kd3 d5 Kd4 Kd7 Ke5 b5 a4 b4 f4 g4 h4 e6 c4 g3 c6+ Kc7 c5 g2 h6 d4 h7 d3 f6 d2 a6 Ra7 f5 Ne7 a5 Ng8 h5 Ne7 f7 Bd7 f6 Ra8 a7 Bg7 f8N Be8 a6 Kc8 h6 Nd5 c7 Bf7 Nh3 g1N Nc3 Ne2 Nd7 Bh5 Ba3 Be8 Ng5 Ne7 Qa4 b3 Bg2 Nc1 Ne2 Bh5 Bb4 Qg8 Bf3 Na2 Nc1 Bf8 f7 Nc3 Kf6 e5 Ne6 e4 Ng7 e3 Rf1 Nbc6 Nb8 e2 Ra2 e1N Rc2 Nd1 Rc4 Bg6 Rh4 Bb1 Rh2 Nf5 Rh3 Bd6 Rhh1 Qf8 Rh5 Rg8 h8B Nfe7 h7 Ba2 Rh6 Nc3 Nf5 Ned5+ Ke6 Be7 Bf6 Qg7 h8Q Na5 Bg5 Nb7 Bh4 Rd8 Qhe8 Bg5 Qe7 Qd4 Ng7 Nd6 Qf6 Be3 Qe5 Nf4+ Kf6 Ne6 Nc6 Kd7 c8N Nc2 Nb8+ Kc7 Bc6 Nb5 Bf3 Qc3 c6 Nc5 Ne7 Na1 Nef5 Kb6 c7 Nc2 c8B Rf8 Be6 Rc8 Bd7 Rc7 Be6 Nc8 Nd6 Rc6 Beg4 Kc7 Nd7 Rb8 a8B Rbb6 a7 Ra6 Bb7 Ra5 a8Q Na6 Nb8 Rc4 Bbc6
1n5r/2K2pBB/1N3Qp1/B2PBQ1B/6N1/1n1k2b1/3Nb1NR/R1bbrq1Q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 c5 Kf4 b5 h4 c4 d4 b4 e4 c3 a4 c2 a6 b3 a5 b2 a7 Nh6 e6+ Kd6 e7 Rg8 e8N+ Ke7 Ke5 Na6 d6+ Kd7 Be2 Kc6 d7 Qb6 d8B Bf5 Nh3 Bb4 Nf4 Bc3 Nd2 b1B Rh2 Ba2 Nf6 Bb3 Ng4 Bg6 Qh1 Rh8 Bb2 c1B Ng2 Nc7 a6 Rc8 a8B+ Qb7 a7 Na6 Ba5 Nf5 h6 Nc7 h7 Ba4 h5 Nd6 h6 Rhf8 h8Q Nf5 h7 Na6 Bf3 Kb5 Bd1 Ne7 Kd6 Nb8 e5 Rfe8 e6 Qf3 Be4 Qf1 a8N Nec6 e7 Bh5 d5 Nd4 Nb6 Nb3 Bec2 Bf6 Be5 Bh4 Bf5 Rcd8+ Kc7 Bg3 Bg6 Kc5 Bdc2 Bb5 Bcf5 Be2 Bd3 Rg8 e8Q Rf8 Qd7 Rfe8 Qf5 Bd1 N4e3 Bhe2 Bh5 Re6 Ng4 Rde8 Bd6+ Kd4 Bb1 Rh6 Be4 Re5 Qd8 Re8 h8B Rhe6 Qdf6+ Re5 Q5e6 Rf8 Bh7 g6 Bg7 Kd3 Qd7 Rh8 Qc8 Bf3 Qce6 Re1 Be5 Bfe2 Qef5+
2K1NBN1/1Rb1P3/2R2RN1/1Bpb2k1/B1Q2Rnq/2p1rrR1/b2b2Q1/4Nn2 b - - 0 1 illegal: Other
1nB3B1/1b1Rp1Q1/R1pqr3/K1BRb3/Q1Nbkr2/4nbQ1/6P1/R3QR1N b - - 0 1 illegal: No proof kernel
bb1n1R2/B1rP4/1Q2BN2/K2n4/3B1kB1/3rpNqn/RRBQN1p1/1n4R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc3 b5 Kb4 e5 h4 g5 a4 e4 f4 g4 f6 c6 h6 g3 h7 g2 f7 Bh6 f8N Bd7 f5 Be6 a6 Qf6 a7 c5+ Ka5 c4 h5 c3 Nf3 b4 Nd7 b3 Be3 b2 Bd3 c2 Ra2 c1N Qd2 Qg5 f6 Bg4 f7 Bh3 f8R Qg4 Rg1 Ne2 Nf6 Nc1 Bc2 Nd3 Nc3 b1N Ne2 Bg7 h6 Ke7 d6+ Ke6 d5+ Kf5 d7 Qf4 d8Q Qh2 d6 Qg3 d7 Ne7 Qb6 Nf4 Rb2 Rg8 h8R Bg4 h7 Nh3 Bd4 Bh6 Bf2 Rg7 Rhg8 Nd5 h8B Bf4 Ra2 Na6 Rb8 Be5 Rgf8 Nab4 Rb7 Rd8 a8B Rc8 Bd4 Rc7 Rbb8 Ndf4 Bd5 Ne6 Bc4 Nd8 Be6+ Kg6 Rb7 Re7 Bg7 Nd5 Bh6 Bf5 Bhe3 Bf4 Ka6 Bg4 a5 Bh5 Bg4 Re6 Kb5 Rd6 a6 Kh6 a7 Bg6 Nh2 Kg5 a8B Bh5 Be6 Bf3 Ka5 Nf7 Bc5 Nd8 Bed4 e3 Rb8 Nb4 Bae4 Nd5 B4f5 Be5 Bg4 Be4 Nc1 Kf4 Nf3 Ndc3 Qb3 Ba8 Ba7 Nd5 Qb6 Ndc3 Bc5 Rd3 Bd4 Nd5 Qc6 Rc8 Rbb2 Bb8 Qb6 Rc7 Ne2#
1b4nq/1pn2r1N/3N1bR1/P1p3R1/4RB1Q/1BB1K1bN/B1k4B/Q1r2R1b b - - 0 1 illegal: No proof kernel
3r3B/bpBN1R1r/N1Bk2Pn/Q7/2nb2N1/1Bb4K/NqN1p2R/1b4QQ b - - 0 1 illegal: No proof kernel
5Kn1/Rbk2N2/1BB2q1n/8/2r1R1RR/p2pNQq1/q2PQBrB/r3BQ2 b - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 h5 a4 e6 e4 h4 exf5 h3 a5 Kf7 gxh3 Bc5 h4 Ke8 h5 Bb6 axb6 Ke7 Ra6 Kf7 Ra1 Ke8 Ke2 g5 Kf3 a5 Ke4 c5 Ke5 d5 h4 Kd7 f4 d4 b7 c4 f6 c3 f7 g4 f8Q d3 b6 a4 b5 c2 h6 g3 h5 g2 f5 Qh4 h7 Qc4 f6 Ne7 h6 Nf5 f7 Ra7 Kf6 e5 Nh3 g1R Bb2 c1Q Nc3 e4 Ng5 e3 Nd5 e2 Bg2 e1Q Bd4 Ne7 Kg7 Qc6 Qe2 Na6 b8B Rc7 b7 Q6c2 b6 Q1b2 Ba7 Qa3 b8B Qcc1 b7 Qg3 Bab6 Rd1 Rg1 Rc4 B8c7 Qf3 b8B Qab2 Bh2 Qf1 Bbg3 Qf4 Be1 Bb7 Ra3 Qcc2 Qa8 Bc6 f8Q Nb4 Ra2 Qg4 Qff1 Rg8+ Kf7 Rg6 h8R Nf5 h7 Ra1 Bdf2 Qcb1 Ne3 Nd5 Be4 Nde7 Kf8 Ng8 Nf7 Qf6 Ra3 Qa2 Bd5 Nge7 Rg8 Rg5 h8R Qg2 Rh3 Nh6 Rh4 Rg6 Rg7 Neg8 Be4 Qh3 Rg5 Qhf3 Re5 Rg2 Rgg4 Qg3 Bf3 Be4 Qd5+ Kc8 Re7 Kb8 Qf5 Ba8 Bc6 Bb7 Qff3 Kc8 Ree4 Kb8 Rb3 Kc8 Rb4 a3 Ra4 Kb8 Ra7 Kc8 Bd4 Kc7 Bb6+
NQb1NK2/1R3N2/2BnQqR1/nq2r2B/2RBBk1p/p1R4b/2nb3P/5B2 b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 b5 a4 f5 axb5 e5 fxe5 f4 g4 Ra6 Be3 Rf6 Bc1 Rf5 gxf5 Qc7 Nd2 Qb6 Nb1 Qd8 Kf2 Ke7 Kf3 h5 Ke4 g5 Kd5 h4 c4 d6 e4 f3 b4 f2 b6 a4 c6 g4 b7 g3 c7 g2 f6+ Kf7 c5 Kg6 c6 a3 b5 Bd7 c8B Nh6 f7 Bg7 f8R Qb6 c7 Bf6 e6 Qa5 e7 Bh3 e8N Nf5 Ke6 d5 b6 d4 e5 d3 Qg4+ Bg5 Bb2 d2 Bd4 d1B Nf3 g1Q Rf6+ Kh7 Kf7 Bc1 e6 Nd7 b8R Qc3 b7 Ng7 e7 Qb4 Qe6 Bh6 Nbd2 Qd6 Ne5 Nc5 Bd7 Qg5 c8B Nb3 Bc6 Bdg4 Rg6 Nf5 Rc1 Na5 Ndc4 Qh5 Nb6 Bd2 Na8 Rg8 Ng7 Re8 Rc3 Qg5 Rg1 Qc5 Rgg3 Qb5 Rc4 Qh6 Rgc3 Nd6+ Kf6 Bf5 Nf7 Qf4 B8d7 Qf3 Be4 Qf4 Bfd3 f1N Bdc6 Ne3 Be2 Nc2 Bf1 Rd8 e8B Qfe5+ Ke7 Qf6+ Kf8 Rd7 Rd8 Re7 b8Q Bfg4 Qd5 Bc8 Rd7 Re5 Rb7 Qe6 Nh8 Qf6+ Bf7 Bg5 Qe6 Bd2 Rg1+ Kh6 Ne8 Bg4 Rgg3 Kg5 Rg1 Kf4 Rg2 Qd8 Bh5 Qf6+ Nf7 Bh3 Rg6
qb1N1n2/1qBR1R1Q/6N1/2rNq1p1/2b1B1Q1/Np5r/2QKQ1P1/k2B1bN1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 e5 fxe5 d5 bxa5 d4 h5 d3 cxd3 Nc6 d4 Nce7 d5 Ng6 hxg6 Qf6 Nf3 Qd6 Ng1 Qd8 e4 Kd7 a4 f5 d4 h5 g7 b5 e6+ Kd6 e5+ Ke7 d6+ Ke8 e7 Kf7 e8N Ke6 d7 Kd5 e6 c5 a6 c4 a5 c3 e7 h4 a7 c2 a6 f4 Nf6+ Kd6 e8Q h3 d5 Kc5 d6 Kb4 Be2 Kb3 Nd5 b4 Kd2 h2 Na3 Nf6 g8N f3 Nge7 f2 Ng6 f1B Bf3 Bc4 Qee2 Nh7 Bb2 Bb7 Be5 Rc8 a8Q Rc5 a7 Bba6 Qb7 Qa8 d8Q Bab5 d7 Bd6 Be4 Nf8 Qdc7 Rh3 d8N Ba6 Qh7 Bb8 Bc7 Kb2 Qc8 b3 Qcg4 Qb7 a8B c1Q+ Ke1+ Qc2 Qdd3 Bab5 Rd1 Ka2 Qdd2 Qb2 Qc2 Ba6 Rd4 Ka1 Kd2 Qa2 Bf3 Qb2 Rf4 Qe5 Rf7 Bab5 Qee4 Bf1 Bd1 Bbc4 Qee2 Qa7 Bc6 Qb7 Ne3 Qa8 Be4 Qb7 Nd5 Qa8 Nf3 Qb7 Rg1 h1Q Rd7 Qhh2 Rh1 Qe8 Ng1 Qhe5 Rf7 Qa4 Rd7 Qaa8 Rh2 Rg3 Rh3 Rc3 Rf3 Re3 Rf6 Rh3 Rff7
qnq1kn1R/2Q3Bp/1Q2Q3/2pr1QB1/b1RrQ2K/2R4P/6NN/B2q1n1B b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 gxf5 e6 e4 b3 e5 Ba3 axb3 Bd6 b4 Be7 b5 Bf6 exf6 Qd6 Kf2 Qe7 Ke1 Qd8 Kf2 c5 Kg3 g5 d4 a5 b4 e5 f7+ Kd7 f8R e4 b6 a4 b7 a3 d6 e3 b5 g4 d5 e2 b6 e1N h3 a2 f6 Ra6 f7 Nc6 b8Q Ra5 f5 Nge7 f6 Ng8 b7 Qb6 Qf3 Rb5 Nd2 Ng2 Qe4 Rb2 Ngf3 Qb5 Nc4 Nb4 Ne3 Nf4 Bg2 Ng6 Nh2 N6e7 Kh4 Rb3 Bb2 g3 Rhc1 Ra3 Bh1 g2 Qa8 g1Q b8Q Na6 Qb6 Nb4 Ng2 Nh6 Rg8 Bb7 f8B Qa6 Qaa7 Qd1 f7 Ra5 Rg3 Ng4 Bfg7 Rb8 f8Q Nbc6 Qg8 Ra3 Rc4 Rd3 Bbd4 Rd2 Re3 Rd8 Bb2 Qf1 Rec3 Qe2 Rf1 a1Q Rf6 Q1a3 Ba1 Ne3 Rf4 Rd4 Qe8+ Kc8 Rf8 Qc2 Rh8 Qd1 Qf7 Kd7 Qh5 Nb8 Qg6 Rf8 Qh6 Ke8 d7+ Kf7 d8B Nf1 d6 Bc6 d7 Qc8 Qac7 Qa8 Qhd6 Ba4 Qe5 Ng8 Qcc6 Nf6 Qf5 Re8 Qbc7 Re5 Be7 Red5 Q7b6 Qa5 d8Q Qa8 Qe5 Nfd7 Qdc7 Nf8 Qce6+ Ke8 Q6f5 Rd6 Qee6 R6d5 Bg5+
3R2B1/BRQ2Qrq/Rp1Rn3/1r2qp1B/6Rq/1b4r1/1P1k3N/QQn1NK2 b - - 0 1 illegal: No extended proof kernel
r2Q3K/BQ1Rp1nN/2n1Qr1r/p1RN4/4BQ2/2NR3R/k2RPqq1/n5b1 b - - 0 1 illegal: No possible last move
1Qb3Q1/1pR1nB2/1B1N2b1/1B2p3/RP1Rq1b1/R1NQ2B1/2K1bBrk/1rb5 b - - 0 1 illegal: No proof kernel
2b1NBqn/KB2rQ2/1N1Nnp1r/2nRRn1k/2r5/2NQ1P2/3N2Qp/R1Q5 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 Kd2 a5 Ke3 c5 g4 h5 b4 e5 f3 a4 g6 c4 g5 a3 g7 h4 d7+ Ke7 b6 f6 g6 e4 d6+ Ke6 d5+ Kf5 Kd4 e3 Kc5 Kg5 b7 c3 b5 h3 b6 c2 Nd2 a2 Ba3 c1N Ba6 h2 Ne2 Ra7 Re1 Rh7 Nc3 Qf8 d8N e2 Nf7+ Kh5 Kb5 Ne7 g8Q Nd7 b8N Rh6 b7 Qe8 g7 Nb6+ d7 Nb3 d6 Nbd5 Qc1 Nc6 d8Q Bh3 d7 Rg6 Bf8 Nc5 Nd6 Nde7 Kb6 Nf5 Qf7 Ne5 g8Q Qe6 Qgg7 Qd5 Ne8 Ne6 Nc6 Bg4 b8N Rc7 Nd4 Rc4 Ndb5 Qa8 Bb7 Bh3 Rg1 e1R Nbd6 Re2 Re1 Re3 Qfg8 Rh6 Qg2 Ng6 Qf7 Re5 Qc8 Re3 d8R Ree4 Nd7 Re5 Qh7 Nh8 Qc7 Qc8 Ka7 Ree4 Rb1 a1N Nb6 Nb3 Ra1 Nbc5 Qcf7+ Kh4 Nca4 Ne7 Nc7 Ng5 Re8 Qg4 Re2 Qg3 Nc3 Bc8 Qf5 Re6 Qd5 Nf5 Qd3 Re3 Re4+ Qg4 Rf4 Re7 Re5 Nge6 Rd4 Kg5 Rdd5 Qg3 Qg8+ Kh5 Nce8 Qg6 Qh7 Qg8 Qf7+
1bb4r/2Nrp1B1/QnR1KB2/2NR1Q2/6q1/2pB2q1/q1PR2Qk/Bq2QQ2 b - - 0 1 illegal: No possible last move, all moves rejected
B6B/2n2pRp/q2qRbq1/r1rQ4/Q2QbP1k/QB5Q/R2R1K2/2NqN3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 d5 axb5 Nd7 d4 Nb6 dxc5 d4 Rh6 Bf5 Rh1 Nd5 exd5 Bc8 b4 a5 c4 e5 f4 Ke7 g4 e4 c6 e3 c5 e2 g6 Kf6 g5+ Kf5 d6 Kg4 g7 d3 d7 a4 g6 d2+ Kf2 a3 b6 a2 b5 Qc7 d8R Bb7 Bb2 Rc8 Na3 Rb8 Rh6 Nf6 g8R Qe7 c7 Ba8 c8Q+ Qe6 b7 Qf5 b6 Bd6 c6 Be5 g7 Bc7 Nc2 Nh5 Re6 Qg6 Ne1 Qe4 Bg2 Qb4 Qa4 d1Q Rd2 Bd6 c7 Ng3 Qd8 Qa3 c8B Bb4 Qd5 Nh5 Bd7 Re8 b8Q Nf6 b7 Kh4 Qbe5 Bc3 b8Q Qd6 Qbb3 Rc8 Qed4 Ne8 Qba3 Nc7 Bb5 Qc2 Bc4 Qg6 Bb3 Bb7 Rge8 Ra8 g8Q Ra5 Ra8 Rc5 Qc8 Ra5 Rc1 a1Q Qcd7 Re8 Rcc2 Rh8 Rg8 Bc6 Rg7 Rc8 Be4 Qd1 Ba1 Bb7 Ra2 Ba8 Qd4c4 Bf6 Qdd4 Bd5 Bg2 Be4 Qcd5 Qa6 Q5c4 Ra8 Q4d6 Bb7 Qd8 Rb5 Nd3 Rg5 Nc1 Be7 Qcd3 Rc5 Rg8 Qb5 Bh8 Bf6 Rg7 Ra5 Qa8 Qd7 Q6d4 Qd6 Be4 Ba6 Qf3 Bd3 Bed5 Be4 Qd8 Qe7 Ba8 Qf8 Q8d5 Qd6 Rdb2 Qd3 Rd2 Q3a6 Qfe3 Kg4 Nf3 e1Q+ Kg2 Qh1+ Kf2 Qd1 Ne1 Kh4 Qh3+
2B1RRKN/Qrp2nN1/2r1p2N/nBR2N1n/2P1B3/1B2Q2b/qk4q1/2Bn4 b - - 0 1 legal: proof: e4 d5 exd5 b5 h4 g5 hxg5 e6 f4 b4 g4 b3 g6 Qe7 g7 Qb4 g5 Qd4 g6 Qf6 axb3 Qd8 b4 Be7 b5 Bg5 fxg5 Qf6 Ra3 Qe7 Ra1 Qd8 Kf2 Ke7 Kg3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 a5 b6 h5 d6 f5 d7 h4 d5 h3 b7 h2 d6 a4 Nd2 a3 Ngf3 a2 Qe2 f4 Nb3 Ra7 Qe3 Rh5 Bb5 Qe8 d8N Rh6 c4 Nf6 g8B Bd7 g7 Rh5 Rf1 h1N Nf7 Qc8 Nh6 Ra3 Nfd4 f3 Ndf5 f2 g6 Na6 b8Q Qf8 Qba7 Rh4 Bf7 Rh3 g8B Qg7 Nbd4 Rh4 Be8 Ng3 Bh7 Rc3 Bd2 Bc6 d7 Bg2 d8N Bh1 Ndf7 Nge4 Bed7 Rg4 Nh8 Bf3 Bc8 Bg2 b3 Ka3 b4 Qg8 Ng7 Ng5 Ndf5 Nh5 Rae1 a1Q Rb1 Nf4 Kf6 Bh3 Ke7 Qb2 Ra1+ Kb3 Ra5 Qa2 Kf6 Kb2 Ke7 Nf3 Kf6 Rg5 Ke7 Qd8+ Kf7 Qd5 Kg8 Qe4 Nh5 Nc5 g7 Nb3 Bg6 Ne2 Bge8 Ng3 Ba4 Nh4 b5 Qg2 b6 Nf3 b7 Ne5 b8R Nf7 Rc5 Rd3 Bec6 Rd6 Bcb5 Na5 Bb3 Rb6 Bb7 Rc6 Re8 Ne4 Bc8 Nc3 Kf8 Rg3 g8B Nd1 Nhg7 Rg5 Bh7 Rh5 Rh1 f1N Kg8 Ng3 Rf1 Rg5 Nd4 Re5 Be4 Nh5 Rf6 Rd5 Ndf5 Rd8 Bd7 Rb8 Bc8 Nd6 Rf7 Rb7 Rff8 Nf7 Bc1+
b1Q1NR1R/B1pqnpB1/2qq1r2/2Br3R/N1K2Q1B/q2Q4/5P1k/1BbR4 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 Kd7 d4 Rh6 d6 Ke6 d7 Kd6 d5 Rh8 Bd2 Ke5 Bc1 Kf6 d6 Na6 Bh3 Nb4 Bf1 Nd5 exd5 Rh6 Bc4 Rh7 Bf1 Rh8 Kd2 Kf5 Kd3 a5 b4 g5 h4 e5 b6 e4+ Kc4 a4 h6 a3 h7 a2 h5 g4 h6 e3 b7 Kf4 b8Q g3 b5 g2 b6 Ra7 b7 Be7 Nf3 g1Q Qd2 Qg2 Rh5 Qg1 Nd4 Bf6 Nb5 Bg7 N1c3 Bd4 Bd3 Kg4 Bb1 e2 Ba3 e1Q Bc5 Ra8 Na4 Qde7 d8Q Qf6 d7 Qee7 Nd6 Bb2 Ne8 Qh2 d6 Ra6 Qd4+ Kf3 Qf4+ Kg2 Qa8 Kh1 b8B+ Bb7 Bba7 Bc1 Qdc8 Rb6 d8B Qd7 Be7 Qg6 Bh4 Ne7 Qd8 Rg8 Qac8 Ba8 h8B Qf6 h7 Rg5 Bg7 Rd5 h8R Qg3 Qa6 Kh2 Qdc8 Qfe6 Qb5 Qc6 d7 Qf5 d8R Qfd7 Bg6 Ra6 Rb1 a1Q Qb3 Qa3 Qd3 Bd2 Rd1 Bc1 Qdd4 Rb6 Bb1 Ra6 Qd3 Rb6 Qfe3 Qgd6 Qf4+ Kg2 Qdd4 Qh6 Qb8 Qb7 Qc8 Rbd6 Qdd2 Qbc6 Qd3 Re6 Nd6 Rg6 Qfd4 Kh2 Rdf8 Qf4 Q4e4 Rf6 Ne8 Qfd6 Qf4+
rk1nN2Q/r3p3/2BQb2N/2n2rb1/1Nr1P2R/r1Bp4/NB1N4/K2R1QB1 b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 f4 Nb8 fxg5 Bh6 Nh3 Bg7 Ng1 Bf8 g4 Bg7 h4 Qb6 g6 Bd4 g5 Qc7 h5 Bg7 h6 Qe5 Ra4 Bf8 Ra1 Qg7 hxg7 Ba6 Qd3 Bb7 Qd1 Bc8 Kd2 Kd8 Kc3 Kc7 b4 a5 Kb2 f5 e4 h5 c4 d5 c6 h4 c5 h3 b6+ Kd8 c7+ Kd7 c6+ Kd6 b7 d4 b5 a4 b6 f4 Nf3 h2 Bb5 d3 Nfd2 f3 Qf1 f2 Nc3 Ra5 Na2 Bf5 c8Q Ra7 c7 Ra8 Qd7+ Kc5 c8N Ra6 Na7 Rh4 Nc6 Ra8 Ncb4 Rh8 Bc6 Na6 b8B Ra7 b7 Kb6 Qd6 Nh6 g8Q Nf7 g7 Nd8 g6 a3+ Kb1 Bg4 Bb2 Nc5 Qh7 Bd7 g8N Be6 Nf6 Bh6 g7 Bg5 Ne8 Rf8 g8N Rf5 Qd1 f1R Qh8 Rf8 Qe1 R1f5 Nh6 Rg8 Qc1 Rgf8 Rd1 h1R Bc3 Rh2 Rh1 Rg2 Rh4 Re2 Qf1 Re1+ Nc1 a2+ Kb2 Ra3 Rb1 a1R Nca2 Re2 Rd1 Rc1 Bc7+ Ka7 Ba5 Rc2+ Ka1 Rg8 Bb2 Rc4 Ba4 Rh2 b8B+ Kb7 Ba7 Re2 B7b6 Rgf8 Qd7+ Kb8 Bc6 Rg8 Nf3 Rec2 Nd2 R2c3 Qd5 Ra4 Qdd4 Rca3 Qd6+ Kc8 Ng7 Ndb7 Qdf4 Na6 Bg1 Nac5 Nc2 Rgf8 Bac3 Ra7 Nb4 Rg8 Qg4 Kc7 Qge2 Rga8 Ne8+ Kb8 Qef2 Nd8 Qfd4 Rb7 Qd7 Rba7 Qd6+
1kr2b2/3BQ2N/1K2N3/1bBbn2B/2RNnR1p/1npn4/2PNQBr1/N5R1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Nf6 g4 Rg8 h5 Ke7 g6 Ke8 g5 Bf8 h6 Rh8 Bh3 Ng8 Bg2 Qf6 Bf1 Qg7 hxg7 Be7 Qd4 Ba3 Qd1 Bf8 Kd2 Kd8 Kd3 a5 Kc4 c5 b4 Kc7 e4 f5 b6+ Kb7 Kb5 d5 e6 h5 e7 a4 e8N f4 e5 c4 e6 c3 e7 h4 Ne2 a3 Nd4 a2 Be2 f3 Rg1 f2 Nd2 f1N Nc7 Bg4 e8Q Rh7 Qe7 Bh5 Nce6+ Nd7 Ba3 Rc8 N4b3 Nh6 g8B d4 g7 d3 g6 Kb8 b7 Nc5 Kb6 Ne3 b5 Na6 Bc5 Ng2 Rc1 Nc7 Na1 Rh8 Bf7 Ne1 g8N Bg4 g7 Nf3 Bh5 Bf5 Nf6 Nf7 g8R N3e5 Nh7 Nd6 R8g4 Na6 Rc4 Nb4 Beg4 Be4 Qe2 Bd5 Rcf1 Rg8 Rff4 Rg5 Be8 Ne4 Bgh5 Rg2 Bd7 Na6 Bf2 Nac5 Ka5 Ka7 b8N Ka8 b6 Kb7 Nab3 a1N Nc6 Ka8 Ncd4 Kb8 N2f3 d2 b7 d1B Nfd2 Ncd3 Kb5 Ka7 b8B+ Kb7 Bd6 Ka8 Nc1 Nb3 Bc5 Kb8 Ka6 Ng6 Kb6 Nge5 Qf1 Be2 Qe1 Na5 Ncb3 Bf1 Na1 Nb3 Qe2 Ndc1 Qe1 Bd3 Ra4 Bb5 Qe2 Ncd3 Rc4
n1b3Rr/1Q1rrb1n/4QbpR/1RN3R1/3Qb1P1/B6B/2B2KBp/1B1k1N2 b - - 0 1 legal: proof: f4 b5 a4 e5 axb5 c5 fxe5 g6 d4 Bb7 dxc5 Nf6 h4 Bc8 h5 Ng8 h6 Qe7 Qd5 Qf6 Qd1 Qg7 hxg7 Be7 Nf3 Bd6 Ng1 Bf8 e4 Ke7 c4 Ke6 b4 d5 b6 h5 b5 f5 c6 a5 c7 h4 c5 d4 b7 f4 c6 a4 b6 f3 Ne2 d3 Nbc3 d2+ Kf2 h3 Ng3 a3 Bd3 a2 Nf1 Na6 b8Q Bd7 c8B Nc5 b7 Ra3 c7 Ra7 Ba3 Nf6 g8R Bg7 Na4 Na6 Nc5+ Ke7 g3 Nh7 e6 Kf6 e5+ Kg5 e7 Kg4 e8Q Bf6 e6 Bc6 Qa8 Be4 b8R Rb7 Qda4 d1B Qd4 Bb3 e7+ Be6 Rb1 a1R Rb5 Re1 Ra5 Ra7 Rbb5 Re3 Bb7 Bf7 Bb1 Rd3 Bc6 Re3 c8B+ Rd7 Qb7 Nc7 Qf8 Na8 e8B Bb3 Qe7 h2 Rg1 Be6 Bf7 Ba2 Bc4 Bb3 Bcd3 Bf7 Qd5 Bf5 Qed6 Ree7 Qd4+ Be4 Qe6+ Kg5 Ke1 f2+ Ke2 Bf5 Bg2 Be4 Nd2 f1B+ Kf2 Be2 Nf1 B2f3 Bh3 Bf5 g4 B3e4 Rg3 Rd8 Bd7 Kf4 Bc6 Rd5 Bg2 Rdd7 Rh3 Nb6 Rh6 Na8 Qb3 B5e6 Bh3 Bf5 Ke1 Kf3 Qe6 Rd8 Bd5 Rdd7 Nb3 Nc7 Qeb6 Rd6 Rc5 Bc8 Rab5 Rdd7 Qe6 Na8 Bc6 Bg7 Rd5 Bf5 Nc5 Be5 Qc3 Bf6 Re5+ Kf4 Bcg2 Be4 Reh5 Rd8 Rg5 Rdd7 Ng3 Ke3 Kf1 Nb6 Qd4+ Kd2 Kf2 Kd1 Nf1 Na8 Bdc2#
2n3K1/1pr4R/QBBRQ3/6Qr/2n2r1N/b4nNQ/bPBpQ1Bk/3n3N b - - 0 1 illegal: No proof kernel
1Q1QN1N1/1r1NBn1b/Q7/1B1nr1B1/2qpp3/B2RRpP1/kr5N/1B3Kb1 b - - 0 1 illegal: No proof kernel
2k4B/n4q2/br1b1R1Q/2Pp4/npR1R3/RQN5/1rpK1N1N/Nb1B1R1Q b - - 0 1 illegal: No proof kernel
k1BN1Q1R/2n2b1Q/B1Kn2r1/1PR1q3/r7/2p1Qp1p/1Qr3NB/2bN1NN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 f5 g4 c5 b4 Kc7 d4 Kb7 e4 a5 g6 h5 d6 c4 g7 h4 b6 c3 d5 f4 e6 a4 g5 a3 g6 a2 e7 Na6 e8Q Kb8 d7 Bb7 e5 Bc5 Ke4 f3 e6 Be7 Qd2 Rh5 Qb2 Qc8 d8N Qd7 Nd2 Bf8 e7 Bc6 b7 Nc7 Ba6 Qh3 Nf1 Rh6 Bf4 Qh2 Ne6+ Ka7 b8N Nb5 Nd7 Rb8 Ndc5 Rc8 Na4 Qf2 Bh2 Qg2 Nf4 Bd7 d6 Qf2 Kd5 Qb6 Ng2 Qc7 Rd1 Bf5 d7 a1R d8N Nd6 b5 Ra8 Rd3 Qb8 Kc6 Ra2 Rd5 Be6 Rc5 Nf6 g8B Nd5 g7 Nc7 Qg6 Bf7 e8Q Be7 Qh7 Bg5 Qee2 Bc1 Qe3 Bg6 Be6 Bf7 g8Q Rg6 Qa3 Rc2 Qb2 Re2 Qf8 Rc2 Nb7 Qe8+ Bd7 Qe7 Nd8 Qe5 Bdc8 Kb8 Qa2 Ra7 Nb2 Ka8 Nd1 Kb8 Bab7 Ra4 Ba6 Ka8 Qb2 Kb8 Bg3 Ka8 Rh3 Ne6 Bh2 Nc7 Rg3 h3 Rg5 Re6 Rg8 Rg6 Rh8
4bQ2/R7/Qnb1NNnb/PrQ2B1p/ppRQq1rB/6B1/N3B2k/1B3K2 b - - 0 1 illegal: No proof kernel
N2R1b1N/3K2B1/1r1nQrP1/1n1B2qB/3B1B1k/1R4N1/1RN1bppp/nQ6 b - - 0 1 illegal: No proof kernel
4Qn1N/B6n/nNQ1BQp1/2p1Qr2/7B/pq1r3N/1QR3P1/bK1RbNk1 b - - 0 1 illegal: No extended proof kernel
R1Q1Rnr1/2B5/NbrRP2N/1N6/K1p1pQ2/R1r1pn1k/b1RQ4/qB2Q3 b - - 0 1 illegal: Other
1Q3nk1/QQ6/b3ppQK/r4QN1/1P1R1qRb/2p1NRBB/1Nn5/b4R1r b - - 0 1 illegal: No proof kernel
2k4N/3b4/qr1p4/n3NBn1/1QR1BRp1/Q1Br2rQ/p2bBQPK/4R2Q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 g4 d4 Qc7 dxc5 Qf4 Ne2 Nh6 Ng1 Qg5 hxg5 Ng8 b4 Kd8 c4 a5 f4 h5 Kf2 e5 Kg3 h4+ Kh2 e4 g6 e3 b6 e2 c6 e1Q g7 h3 f6 a4 f7 a3 c5 a2 c7+ Ke7 b5 Qe4 f5 Qb4 c6 Qb3 f6+ Ke6 b7 Ra6 b6 Qe3 Bd2 Qb3 Na3 Qc2 Nb5 Qa4 Be2 Nh6 g8B Bg7 f8Q+ Nf7 Nd6 Qa3 Nf3 Qb2 Ne5 Ra7 Bc3 Rh5 Bh7 Rh4 Re1 Qb5 Be4 Nh6 Ndf7 Ra6 Nh8 Nf7 Qa3 Ng5 f7 d6 f8Q Bh6 Qf2 Bd7 c8B Qc4 c7 Nc6 b8Q Na5 b7 Rb6 Rb1 Qa6 Rb4 Rh5 Qa8 Rh4 b8Q Ke7 Kg3 h2 Qad5 h1R Q5d3 Rf1 Q1b1 Rhh1 Qdf3 Rhg1 Kh2 Ke6 Qh3 Ke7 Qd4 Rf3 Qf2 Rf1 Rd4 Rd3 Qbb4 Ke8 Qa7 Rg3 Qg1 Rf7 Qh1 Rff3 Rc4 Rd3 Rd4 Bc6 Bcf5 Bd7 c8R+ Ke7 Rcc4 Kd8 Bc6 Kc8 Rf4 Rb5 Qf2 Rb6 Rfd4 Ne6 Re4 Bd2 Rf4 Ng5 Bce4+
1B4B1/Rr1R2b1/B1p1bn2/2qQNpN1/K3Pkb1/Np5Q/1BQ2n1N/rB6 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 d4 Ke7 Kd2 f5 Kc3 h5 Kb4 b5 g4 h4 a4 h3 e4 h2 a6 Nf6 a7 Bh6 g6 Ng8 a5 Kd7 a6 Qh4 g7 Rh7 e6+ Kd6 g5 Qf4 g6 Qf3 e7 Qh3 e8N+ Kd7 d6 Ke6 d5+ Ke5 d7 Rh8 d8N Nd7 d6 Qh4 Bb2+ Kf4 Qc2 Bb7 Nf7 Qf6 Ng5 Kg4 N1f3 Qd8 Ne5+ Kf4 Nf6 Nf8 d7 Ne7 Nfg4 Qe8 d8B Nd7 Kb3 Rb8 a8Q b4 a7 Nd5 Bc4 Qe7 Rd1 Qf8 g8Q c6 g7 h1B Bc7 Qd6 Ra4 Ne3 Na3 Qc5 Qe6 Rhd8 Nh2 Bc8 Ra6 Bf3 Ka4 Qd5 Ba2 b3 Qb7 Ng4 g8B Ndf6 a8B Qd6 Ra7 Nf2 Qb4 Qf8 Qbc3 Bg4 Qh3 Bg7 Bb7 Qc5 Ba6 Rb7 Bb8 Bd7 Qec4 Be6 Rd2 Rd3 Rd1 Re3 Rd7 Re1 Qd5 Ra1 Bb1
R3nr1N/1N1r1R2/p1rbK2k/1PpBN3/3Bn2Q/2NQ1b2/q1Qp2B1/1BB5 b - - 0 1 illegal: No proof kernel
Qr1n4/krRqQ1BB/pNn1BrpQ/7P/2RN3R/KB4pQ/1B4bb/8 b - - 0 1 illegal: Other
1R4kN/bQ1b2B1/pp4N1/3n1Rb1/Rq1r1NpN/2B1N1Q1/1Pr1B3/5BnK b - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 h3 a5 b6 a6 Rh5 gxh3 Rh6 h4 Rh8 h5 Qd6 Ra2 Qc6 Ra1 Qb7 axb7 Ke7 Bh3 Kd8 Bf1 Ke8 Kf2 f5 Kg2 Kf7 h4 c5 e4 g5 d4 g4 e6+ Kg7 h6+ Kh7 e7 c4 e8Q c3 d6 c2 d5 f4 h5 a6 d7 Ra7 d8B Be7 d6 Be6 e5 Bc4 d7 Ra8 e6 Bf6 e7 Bb3 Qd5 Bg5 Nf3 Nc6 b8R Ba4 Bd2 c1B Bc3 Nb4 Na3 Bf6 Nh4 Ra7 Nc4 Bc6 Ra4 Nc2 Ne3 f3+ Kg1 Bb5 Qb7 Be5 Rh2 f2+ Kh1 Bg3 Qf8 Nf6 e8B Bc7 Qd6 Nd5 Qg3 Nd4 Bf6 Kg8 d8N Bd7 Ne6 Ne2 Nf4 Ng1 Bg7 Be5 Be2 f1Q Rf2 Qd1 Bf1 Qb3 Rf3 Qb4 Bg6+ Qf8 Bgd3 Bd2 Bde2 Rh7 Qc8 Rc7 Qb7 Rc4 Rf2 Rd4 Rf3 Kf7 Rf2 Qb4 Rf3 Rh8 h7 Rc8 h8N+ Kg8 h6 Bc7 N8g6 Bc1 Ra8 Bb8 Rf2 Ba7 h7+ Kf7 h8N+ Kg8 Rb8 Bd2 Ne6 Bc1 Rf5 Bd2 Nd1 Bh6 Ne3 Bg5 Bf8 Rc5 Nef4 Rc7 Bd2 Rc1 Bc3 Rc2 Bg7+
B2B2Qq/rBR1Qp1p/7R/1BQ1Q1R1/1r1nPN1N/b1p4b/k4K2/bn2B3 b - - 0 1 illegal: No proof kernel
R3NN2/2QnPbr1/r4Q1K/B1Bpp1QB/qb1p3B/R1B1k3/b7/1Q1n1R2 b - - 0 1 illegal: Other
b1rbQ3/1R1BPR1N/2pN1KRp/nRRrNB2/6p1/4Bq2/k3b3/1NQ1n3 b - - 0 1 illegal: No proof kernel
R4BQ1/b1np1RBN/N4b2/8/2pk4/r1P3br/p1KNBn1N/QN2R1Rq b - - 0 1 illegal: No possible last move, all moves rejected
1n1B1q2/Q1prN1r1/Bnk2n1R/bpPR4/4N2K/2p1RB2/RR6/b3NQN1 b - - 0 1 illegal: Other
Q1R1N2n/1p1K4/3B1RNN/5rqQ/1Pbn1RpN/RBN1Bb1r/7p/1r1k4 b - - 0 1 illegal: No possible last move
1RnnBNQ1/1p3Npp/1N3k1B/8/b6R/2bPKB1r/3N1QB1/nqB3Qr b - - 0 1 illegal: No proof kernel
3K2B1/1pPBR1R1/n2p1n2/B1bb1QR1/rBB3Qp/7N/2Nn3k/rq1R3Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Ke3 h5 Ke4 e5 Kd5 h4 g4 e4 f4 e3 a4 e2 c4 e1N a6 Rh6 a7 Rh8 f6 Kg6 f7 Be7 f8B Rh6 c6 Nc2 f5+ Kh7 c7 Bb4 c5 Nd4 g6+ Kh8 Kd6 Na6 g5 Rh5 f6 Bd2 g7+ Kh7 f7 Kg6 c6 Kf5 g6 Kf4 a5 Kg3 Nh3 Nb4 a6 Ne6 Ra5 Nf4 Na3 Rb5 Bc4 Nh6 g8R Rc5 g7 Ng6 Nc2 Be1 Bd2 Rb8 a8Q Nd5 a7 Bf2 Re1 Be3 Qg4+ Kh2 Rd1 Nb4 Be1 Rh5 Rg5 Na6 Ba5 Ne5 Be7 Bg1 f8Q Nf3 Qff5 Nd2 Re8 Bd4 g8B Bg1 Bf8 Qf6+ Re6 Qg6 Ke7 Bc5+ Kd8 Qh7 Re7 d6 Bg7 Be6+ c8B Bd5 c7 Qg6 Bgc3 Qh7 Bcb4 Qg6 Qge4 Ng4 Rg7 Nf6 Qeg4 Bf2 Ke7 Bc5 Bd7 Rf8 Qc8 Rf7+ Kd8 Re7 a8R Re1 Qf1 Qd3 Bdb5 Qb3 Qcf5 Qb1 Bd7 Rh8 Re7 Rh5 Rgg7 Rg5 Qge4 Rg3 Qeg4 Ra3 Ra7 Ra4 Q1f3 Nb8 Ra6 Rf1 Rb6 Rh1 Rb5 Na6 Ref7 Be4 Rg1 Qf1 Qe6 Bb6 Rbg5 Bd5 Qef5 Bc5 Re7 Qd1 Rg3 Re1 Rg1 Qa1 Q3e4 Qb2 Rf1 Rea1 Rd1 Qb1 Qh1+
Qb1bnB1Q/p4BQK/2p1k1pb/Nr4QR/r2R4/2B4R/P1N2R2/1R4qn b - - 0 1 illegal: Other
4RBQ1/4q1n1/3k2B1/b1nrB3/BR1Rp3/Q2p4/B1pP2bK/N1qrNRQ1 b - - 0 1 legal: proof: h4 g5 hxg5 f5 b4 b5 e4 c6 exf5 Bb7 c4 Bh6 a4 Kf8 a5 Qb6 a6 Bg7 cxb5 Be5 Rh6 Ke8 Rh5 Qc7 b6 Bc8 b5 Qb7 axb7 Bg7 Rh1 Bf8 g4 e5 f4 Ke7 Kf2 d5 Kg3 h5 f6+ Ke6 g6 a5 g7 e4 f7 a4 g5 a3 f5+ Kd7 f6 a2 g6 c5 Kh2 c4 Nf3 h4 Na3 d4 Ne1 c3 Bb2 h3 Nac2 Be7 f8B Rh6 f7 Na6 b8Q Ba3 b7 Bb4 b6 Ba3 Bb5+ Ke6 Rf1 d3 Ba4 Ne7 g8B Bb4 g7 Rh5 Bh7 Ba5 g8B Nc5 Bg6 Rd5 Rb1 Ra6 Na1 c2 Bf6 Nf5 Rb4 Ng7 Rd4 Bd7 Qd8 Ra8 b8R Ra6 Nb3 a1Q b7 Qc1 Na1 Rb6 Ra8 Rb1 b8R Qa3 Qc1 Qb4 Qa3 Rd1 Qc7 Qb7 Qg3 Bc8 Qg5 Qe7 Rbb4 Kd6 Qg1 Bg4 Re8 Bf3 Bb5 Bg2 Ba4 Nge6 Bh6 Ng7 f8Q Rb1 B8f7 Rd1 Qg8 Nge6 Kg3 h2 Bf8 h1Q Qf2 Qh6 Qg1 Qe3+ Kh2 Ng7 Rdc4 Qd4 Be6 Qb2 Rd4 Qc1 Bef7 Kc7 Be6 Rd6 Bc4 Rd5 Ba2 Kd6 Be5+
1QQqR2K/R3n3/1Q3B1B/1N2pQ2/ppb1P3/k1N3rq/1nR2Q2/bBr3R1 b - - 0 1 illegal: No proof kernel
1RB3r1/2qQ1NBb/1Q1rqp2/1n2pRb1/1B3RN1/2P4p/6k1/1QnBKR1B b - - 0 1 illegal: No possible last move
6rb/1k1KBN1B/2B1p1rp/2R1R3/1N1P2N1/Q3RR2/b3qp2/1R1nBnQq b - - 0 1 illegal: No proof kernel
1B2QR2/6P1/1q2b1p1/1qbBN1BR/NQ5Q/1K1np1k1/npR3BR/rrR5 b - - 0 1 illegal: No proof kernel
1q2n3/p1rN2pQ/1b2bN1r/B5K1/1p3R1N/3P1BQ1/q2Q1R2/kNQ1Bn1Q b - - 0 1 illegal: No proof kernel
BqB1N2r/5Q2/1RR1Qn2/2n4R/pNb2pNk/nr1r1Rp1/1B3PR1/3B1K2 b - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 a4 d5 axb5 e6 e3 Be7 dxc5 d4 Qf3 d3 Qe2 Bf6 Qd1 Bd4 exd4 Ba6 Bf4 Bb7 Bc1 Bc8 c4 Ke7 h4 Kf6 b4 g5 h6 a5 h5 g4 b6 g3 c6 e5 c7 a4 b7 e4 c5 e3 d5 Kg5 b5 f5 b6 f4 d6 e2 h7 Kg4 c6 Qg5 d7 Qh4 d8R Na6 b8Q Nb4 h6 Qg5 b7 Na6 Qb3 Qe7 Qa7 Rb8 Rh5 Qf6 Ra3 Nb4 Qe6+ Qf5 Nf3 Bd7 c8B Nf6 c7 Be8 Bg2 Ng8 Nc3 Na2 Nd5 Nf6 Nb4 Ne4 Rd6 Rf8 h8N Nc5 h7 Nb3 Rc6 Bg6 Nf7 Nc3 h8R Nc5 Bb2 N3e4 Nd6 Nf6 Ne8 Bf7 Rh2 Rg8 R8h5 Rh8 Bd7 Bg8 c8B Bf7 Bh1 Bg8 Rg2 Bf7 Kd2 e1N Kd1 d2 Ke2 d1R Kf1 Rd3 Rb3 Ra8 b8R Nc2 Rbb6 Na3 Qe3 Qe6 Rb7 Rg8 Nc2 Rd4 Ra6 Rb8 Rg1 Rd5 Bc6 Rdg5 Nh2+ Kf5 Bhf3 Qd7 Ng4 Rh8 Rg2 Bc4+ Be2 Kg6 Qe6 Qd6 Rf3 Rd5 Rbb3 Qc7 Ba8 Rd3 Rc6 Rb5 Bd1 Qb8 Rh1 Kg5 Qaf7 Ra5 Rb7 Rb5 Rbb6 Rbb3 Nb4 Ng8 Rh6 Nf6 Rg6+ Kh5 Rg5+ Kh4 Rh5+
1bBnk1nN/1pR5/n4B2/1bRpBN2/1qQ1N1QB/R3Rrp1/1RKP4/2b5 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 d5 c4 h4 c5 h3 gxh3 Rh6 h4 Raa6 h5 Rad6 cxd6 Rh8 a4 g5 f4 c5 h4 e5 f6 g4 a6 g3 f7+ Kd7 f5 c4 h6 c3 a5 e4 f6 c2 a7 e3 a8R Qe7 a6 Qe8 a7 Nc6 h7 Nb4 h5 Bh6 f8R Qe4 f7 Qg6 Ra3 Bg5 h6 Qe6 Qg4 Bf6 Bh3 Bg5 Nc3 Nc6 Re8 Nf6 f8Q Ne7 Ne4 Nh5 Nf3 Ng6 Nd4 Rg8 h8B Qf5 h7 Ne5 Bf6 Rg6 h8N Nc6 Bb2 c1B Kd1 e2+ Kc2 Bf4 Rb8 Rg7 a8R Rf7 R8a5 Nd8 Rc5 Be5 Bh4 Nf6 Rf1 Qe6 Nf5 Ng8 Rba8 Bf4 Be5 Qe7 Rff3 Rf6 Rfb3 Rf7 Rb2 e1N+ Kb3 Nd3 Kc2 Rf6 R8a4 Rf7 Rac4 Rf6 Qfg7 Rf8 Qe2 Rf7 Qgg4 Nb4+ Kc3 Na6 Kc2 Rf6 Rcc3 Rf7 Qc4 Qf8 Re6 Qe7 Re3 Ke8 Rg6 Bd7 Rg7 Bb5 d7+ Kf8 Bc3 Bb8 Be5 Nc6 d8B Ke8 Rh7 Qd6 Bdf6 Nd8 Qge2 Rf8 Rhc7 Qe7 Nh6 Qd6 Bc8 Qb6 Nf5 Qa5 Qg4 Qb4 Be7 Rf6 Nd4 Rf5 B7f6 Rf3 Nf5
1r1n1R2/1B1n2n1/1N1RrB1N/q5p1/Q1Nq1N1p/2QbQQ1P/3p2B1/1k1K2N1 b - - 0 1 legal: proof: d4 c5 dxc5 b5 e4 f5 exf5 b4 f4 e6 g4 b3 g5 Qb6 axb3 Be7 b4 Qd8 b5 Bf6 gxf6 Bb7 Bd3 Ba6 Bf1 Bc8 b4 Kf7 c4 h5 c6 g5 b6 a5 b5 d5 c7 h4 b7 d4 b6 e5 c5 d3 h3 e4 c6 a4 Bb2 a3 Nd2 a2 Bg2 e3 Nc4 e2 Qa4 Rh7 Rd1 Nd7 b8Q a1Q b7 Ra6 Qa7 Qf8 b8N Qb1 Qe3 Ne5 Nd7 Qh6 Ndb6 Bb7 c8N Qa2 c7 Rh8 Ne7 Qg7 c8B Nh6 Ng8 Be4 Bb7 Nd7 Kd2 e1N Kc1 Kf8 f7 Nf3 Bf6 Nd4 Rd2 Nc6 Kd1 Nd8 Rf2 Ng4 Nh6 Qa3 Ba1 Ke7 f8N Qac3 Ne6 Ngf6 Rd2 Nh5 f6+ Ke8 f5 Qa5 f7+ Ke7 Rh2 Qd4 Nf4 Kf6 Rf2 Ng7 f8Q+ Nf7 Qc5 Rb8 Qca3 Nd8 Qc3 d2 Re2 Nh5 Rh1 Bd3 Rh2 Kg7 f6+ Kh7 f7 Ng7 Nbd5 Re6 f8Q Qb4 Ndb6 Qa5 Nh5 Kg6 Qff3 Qa7 Nf4+ Kf6 Bf1 Qa6 Rhf2 Qa5 Nf7 Kf5 Bg2 Qb5 Rf1 Qa5 Nh6+ Kf6 Qca3 Bh7 Qee4 Rd6 Qh5 Qde5 Nfd5+ Ke6 Qf4 Bd3 Ref2 Rc6 Qe3 Rd6 Rf8 Qe4 Nb2 Ke5 R1f6 Rc6 Nf4 Rd6 Qf2 Qc4 Qe1+ Kd4 Qf3 Rc6 Qc5+ Kc3 Qee3 Rd6 Rf5 Re6 Rd5 Qa8 Rd6 Qa5 Qac6 Kb3 Qb4+ Ka2 Qca4+ Kb1 Qba3 Qcc5 N2c4 Qd5 Bf6 Qd4 Qc3
4k2K/2bq1p1n/R4PNp/1Qr1rRR1/N2BB1Bq/2p2Rq1/1NnQ1N2/1N6 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Bd7 exd7 Kg6 Rh5 Bg7 Rh1 Bf8 Kd2 e5 Kd3 a5 Ke4 c5 b4 a4 f4 a3 g4 h6 f5+ Kg7 g6 a2 g5 c4 b6 c3 b7 Na6 b8N Qf6 d8N Nc7 d7 Ne8 b5 Ra3 b6 Bc5 b7 Kf8 d6 Ba7 Nh3 Bd4 Be3 Ra4 Ndc6 Ra3 d8R Rh7 d7 Ra4 Rg1 Qe7 Nf2 Qb4 Be2 Rh8 Bg4 Rh7 Na6 Qa5 b8Q Rb4 Qb5 Rh8 Qd2 Rh7 Nc5 Ra4 Nb4 Ke7 g7 Qc7 g6 Ra5 Na4 Rh8 Nbd3 Bb6 Ndb2 Nd6+ Kd5 e4 Ke5 Nf6 g8B Qa7 g7 Bc7 Bd4 e3 Bh7 Re8 g8N+ Kf8+ Ne7 e2 Rg3 e1Q+ Re3 Qh1 Rf3 Qh4 Rb8 Qb7 d8R Qc8 Rb7 Qd7 Rdb8 Rc8 Ng6+ Ke8 Ra8 Qc6 Ra6 Qd7 Bg8 Nh7 Rb8 Ng5 Kf6 Nc4 Kg7 Na3 f6 Nc2 Kh8 Nh7 Rbb6 Qg3 Rc6 Qh4 Rc5 Qg3 Rcf5 Qh4 Qb6 Re5 Qb5 Qg3 Na3 Qh4 Rg1 a1Q Rg2 Qg1 Nb1 Ba5 Rgg3 Rcc5 Rg2 Bc7 Rgg3 Nf8 Bh7 Qe1 Bh5 Qg1 Rgg5 Qgg3 Bg4 Re4 Ne7 Qd6 Rd5 Qdg3 Bhf5 Re3 Ng6 Nh7 Bd3 Re2 Rdf5 Ree5 Be4
2Rn1b2/QB4nk/1N1p1Q1q/q1NPB3/3prQq1/4p2r/RN4R1/N1KN1R2 b - - 0 1 illegal: Other
1B2NKB1/rB1b4/Q1nQ1Q1r/p1qQp3/r4Nk1/p1NB2B1/Pn6/R4q1R b - - 0 1 illegal: Other
Qbrqbb1R/B1pp1k2/1nNR4/2PQ1NB1/3Q4/Q7/Q1qRnp1K/2RB4 b - - 0 1 legal: proof: g4 e5 b4 h5 gxh5 a5 bxa5 b5 d4 e4 f3 Ra6 fxe4 Rc6 Nh3 Rc5 Ng1 Re5 dxe5 Rh7 Nc3 Rh6 Nb1 Rh8 Kf2 f5 Kg2 g5 c4 g4 a4 f4 h4 f3+ Kh2 f2 a6 b4 h6 b3 a5 b2 a7 Be7 a8Q Bf6 e6 Bb7 e7 Bc8 a6 Nc6 e5 Bg7 e4 Rh7 h5 Nd4 a7 Kf7 e8R Nb3 e6+ Kf6 e7 Ke6 e5 Bh8 Na3 b1Q Be2 Ba6 Bg5 Qa2 Qd4 Bf6 Nc2 Bg7 Rc1 Qb8 Ne3 Nd2 Nf3 Qb4 Rhd1 Bb7 Nf5 Nb1 Rd2 Bf8 Bd1 Rh8 h7 Kf7 h6 Be4 Qc6 Nf6 a8Q Bd3 Qa3 Qc2 Qce4 Rg8 h8R Qb8 h7 Nc3 Qe2 Nfd5 e6+ Kg6 Qee4 Nb6 Qed5 Ne2 Qa2 Qd8 Ne5+ Kh5 Nc6 g3+ Kh3 g2 Kh2 Bg7 Rf8 Be4 Rf6 Bf8 Rg6 Bf3 e8Q Bg4 e7 g1B+ Kh1 Bh2 Re6+ Rg6 Qa3 Bf4 Qf7 Be3 e8Q Bf3+ Kh2 Be4 Qa8 Bf3 Qee7 Bg4 Qff6 Rg8 Qea3 Bf3 Qda1 Be4 Qfd4 Bd3 Bf6 Kg6 Bg5+ Kf7 Q1a2 Be7 Ng7 Bg6 Nf5 Re8 Rg8 Bf8 h8B Qe7 Bhf6 Rc8 Rh8 Qd8 Be7 Bh5 Bc5 Na4 Bce7 Ke8 Qda1 Ba7 Qad4 Bb8 Bc5+ Kf7 Ba7 Nb6 Rhh6 Kg8 c5 Be8 Rh8+ Kf7 Rd6+
2QBq1QN/1p1Np2q/NQ5b/RK3Bnp/4Q1B1/RP4kr/4rQ1N/3nq3 b - - 0 1 illegal: No proof kernel
1BN1nr2/2R1rp2/2Np1QQ1/1rBK4/3b1PRn/Q1Q2n1B/k3p1b1/1N4QN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 b4 dxc5 d6 e5 Kd7 e6+ Kc6 a3 Qd7 axb4 Kc7 exd7 Kc6 Qg4 Kd5 b5 Ke5 Qd1 Ke6 Kd2 Kd5 Ke3+ Ke5 d8Q g5 c4 a5 f4+ Ke6 Kd4 a4 h4 g4 b4 a3 c6 g3 c7 a2 c5 g2 c6 Nd7 h6 Ndf6 h7 Ba6 c8Q+ Nd7 c7 Nh6 b6 Ng8 b5 Nh6 b7 Ng4 b8B Ne3 b6 Nc4 b7 Rg8 h8Q Nd2 h5 Rg5 h6 Rb5 Ne2 g1N h7 Ndf3+ Kc4 Bg7 Qdg8 Bc3 Be3 Nh4 Bc5 Ngf3 Ng3 Bd4 Rg1 Ra7 Qcd8 Nf6 c8N Ne8 Nh1 Ra8 Rg4 Ra7 Kd3 Kd5 Qg6 e5 Qhf6 Ra8 h8Q e4+ Kc2 e3 Kd3 e2 Bh3 Ra7 Qa5 Ra8 Qa3 Ra7 Kc2 Kc4 Qg1 Ra8 Nc3 Ra7 Rc1 a1R Nb1 Ra8 Bc7 Ra7 b8N Bb7 Nc6 Ba8 Bb8 Re7 Qhg7 Bb7 Qb2 Ra8 Qa1 Nh2 Kd2+ Kb3 Kd3 N2f3 Qa5 Rd7 Ke4 Re7+ Kd5 Kb2 Qc3+ Ka2 Q7h7 Be5 Qgd3 Bd4 Qhg6 Re6 Qb3+ Ka1 Nb6 Ra7 Kc4 Ba6 Nc8 Bb7 N6e7 Be4 Qfg5 Nh2 Qf3 Ng7 Q5f6 Bb7 Qfg3 Bg2 Bb6 Rd7 Qb4 Rd8 Qc5 Re4 Kd5 Ka2 Rc4 Rf8 Qc3 Ne8 B6a7 Rb2 Q5b4 N2f3 Rc7 Re6 Nc6 Re7 Bc5 Rb3 Qcc1 Rb2 Qbc3 Rb5 Q1a3#
B2n4/4q3/p1R2BNp/r6P/B4Q1p/2bBQ1bb/K1R1BNN1/R2Nkr1b b - - 0 1 illegal: Other
2B2n1r/1bp5/N1Pqn2Q/QppQN3/6K1/r1R5/2NBr1Nr/1k2BBNR b - - 0 1 illegal: Other
Q4bk1/Q1n2n1r/2RR1p2/1B1qpN2/2Nn1P2/1rN1Bp1B/K3Q2N/2B2nN1 b - - 0 1 illegal: Other
k2BNN1K/3N1p2/bBR3q1/pr3R2/B4RB1/3bQPbn/1p2B1Q1/5nRb b - - 0 1 legal: proof: d4 c5 a4 a5 h4 b5 b4 e5 dxe5 g5 bxc5 b4 hxg5 Ra6 Rh3 Rb6 Rh1 Rb5 axb5 Bd6 Qd4 Be7 Qd1 Bf8 Kd2 h5 Kd3 d5 Kd4 Kd7 e4 Kc7 g4 Kb7 c4 h4 c6+ Ka7 e6 b3 Ke5 d4 c7 h3 g6 h2 e7 d3 e8B b2 g7 d2 f3 Qd3 g5 Rh6 b6+ Kb7 g6 Rh8 c5 Qe3 c6+ Ka8 b7+ Ka7 Be2 Qd3 Qb3 d1B Na3 Qd8 Nc4 Be7 Bg5 Nf6 g8R Rh7 g7 Rh6 Nh3 Nd5 Nb6 Ba3 Rg1 h1B Nf4 Bc2 Ne6 Rh5 Nf8 Bg4 c8B Nf6 c7 Bb4 Ra4 Be7 Qe3 Na6 Rb4 Nc5 Ba4 Nd5 Bf5 Nf4 c8R Nfe6 b8B+ Kb7 Ba7 Bd3 Rc6 Qd7 Bh4 Bd6+ Kf6 Bf4 e5 Bh2 Rf4 Ng5 e6 Qd5 e7 Qe4 e8N Nb3 Be6 Ba6 Nbd7 Nh3 Bb6 Nd2 Rh8 Bf5 g8Q Nf1 Kg7 Bg6 Bhd8 Rb5 Rh5 Ka8 Kh8 Bh7 Qg2 Bg3 Bf5 Qe6 Bg4 Bd3 Rhc5 Qg6 Rcf5
BbR2RK1/1k3BN1/bp2R3/3P1Rp1/1q2pQpr/B2r1n2/N3QR2/n1B2N2 b - - 0 1 illegal: Other
2kNb2Q/2Q3pR/4r1Q1/5nK1/2pR1BnN/1B3R1p/qPp2b2/1Br1RQQ1 b - - 0 1 illegal: Other
2Q3Nk/n1pNBQ2/K3B1n1/2pR3P/2p3B1/2Qr1rQN/pb4qR/B2bQ3 b - - 0 1 illegal: Other
3R1QB1/2pnP3/KRp2Nb1/3n3Q/p4BBR/N1R1pQ1R/4k1B1/r3r1bq b - - 0 1 illegal: Other
1k4K1/p5NB/B2RnQ1P/1Np2QpQ/1b1B4/B2p1R2/R1r4n/1QB1qbr1 b - - 0 1 illegal: No proof kernel
1k3q2/pBQ1QnbB/P3QN2/1p2r1nQ/R4pr1/3N2n1/1NN3Rp/1KBN4 b - - 0 1 legal: proof: d4 e5 dxe5 c5 f4 g5 fxg5 b6 g4 c4 h4 c3 h5 Bb7 bxc3 Bg7 c4 Be4 c5 Bg6 hxg6 Bf8 Kd2 f5 e4 d5 a4 Kd7 c4 Kc7 Kc2 h5 g7 d4 a5 b5 c6 h4 c5 f4 g6 h3 e6 h2 e7 Rh4 e8N+ Kc8 g5 Na6 e5 Rh5 c7 Nf6 g8B Rb8 e6 Qd7 g7 Rh7 g6 Kb7 c8N Rh6 c6+ Ka8 e7 Qe6 c7 Rh8 Ne2 Rb7 Rg1 Qg4 Ncd6 Nh7 c8Q+ Rb8 Nf7 Qg5 Ned6 Nc7 e8Q Na6 Nec3 Qf6 Qc7 Qe5 Qee7 Qc5 Ne5 Re8 Rg2 Nb8 a6 Nd7 Nd3 Ng5 Nc4 Qd6 Ncb2 Ne5 Bh7 Rg8 Qh5 Nef7 Ra4 Qd8 Na3 Qb8 Qf6 Re5 Ncd1 Qe8 Qfe7 Qd8 N3f2 d3+ Kb1 d2 Nfd3 Qc8 Nc2 Qf5 Nc3 d1N Be2 Nf2 Ncd1 Nfe4 Bf3 Rh8 g8N Bg7 Nf6 Rg8 Rg1 Qc8 Bh1 Qf8 Rg2 Bh6 g7 Ng3 Qc3 Kb8 Qc6 Rh8 g8Q Bg7 Qcd7 Nh6 Qge6 Rg8 Rf2 Nhf7 Bb7 Bh8 Rg2 Rg6 Bc8 Bg7 Qdd8 N5e4 Qdd7 Rg4 Bb7 Neg5 Qc7#
K7/4B2k/pRQ3R1/PB3p1R/p4nrN/3n2q1/n2rQ1Bp/QB1Q1QNb b - - 0 1 illegal: Other
n1NK1n2/1qppQRRp/B1B1k3/8/3P3N/2B1b1n1/N1BNrNp1/Q3rR2 b - - 0 1 illegal: No proof kernel
qNn1Rn2/R2rr2k/1B1N1n1n/3Rr3/2B1Pq2/q2N2N1/1N2KN2/R3Q1N1 b - - 0 1 legal: proof: c4 e5 a4 g5 f4 d5 cxd5 b5 axb5 f5 g3 g4 fxe5 f4 h3 f3 Ra3 Bh6 Ra1 Bf4 gxf4 g3 Qc2 Nc6 Qd1 Bg4 hxg4 Nb8 d4 Kf7 b4 Kg7 e4 c5 f5 a5 d6 h5 b6 h4 b7 g2 g5 c4 b5 h3 d5 a4 f6+ Kg6 f7 c3 f8N+ Kg7 d7 a3 d6 h2 b6 f2+ Ke2 a2 g6 c2 e6 Qe8 d8N Nf6 e7 Ra7 d7 Ra5 Nfe6+ Kg8 g7 Nh5 Nc6 Rb5 d8R Kh7 g8N Rf5 Na5 Re5 Nc3 Nf6 Nh6 Nbd7 b8N Nf8 Be3 c1Q b7 Qc6 Ba7 Qf4 e8N Rg8 Be3 Rg7 Rd5 Rd7 Nf5 Qc5 Bd4 Qa3 Nc5 Rde7 Qe1 Rd7 Rc1 a1Q Nc4 Qa8 Rd1 Q1a3 Nb2 Rde7 Ra1 Rd7 Nh3 g1R Ncd3 Rgg7 Ned6 Rge7 Rg1 h1N Bb6 R7e6 Ncd1 Ree7 Bg2 f1N N1f2 Ne3 Ng3 Neg4 Bf1 Nh6 Rg2 Q8a5 Ng1 Qa6 Nc6 Q6a5 b8R Qa8 Re8 Q3a5 Nb8 Qa3 Ngf5 Ng3+ Kd1 Ne2 Ng3 Nd4 Rh2 Nb5 Ke2 Na7 Rh5 Kg6 Ra5 Nc8 Ra7 R5e6 Rd5 Kh7 Bh3 Re5 Be6 Qc6 Rc5 Qb7 Bc4 Qa8 Rd5
1k6/Bp4rN/B5n1/1qr1P2N/1B1Kn1q1/2Rb4/N1RbB1Qn/2NBB1B1 b - - 0 1 legal: proof: c4 a5 f4 e5 fxe5 c5 g4 d5 cxd5 h5 gxh5 a4 d4 a3 dxc5 Qd7 bxa3 Rh6 a4 Rh8 a5 Qd8 Kd2 Kd7 Kc3 Kc7 h4 g5 a4 f5 e4 f4 d6+ Kd7 a6 g4 e6+ Kc6 d7 Kc7 e7 f3 e8B g3 a7 g2 a5 f2 h6 Ne7 c6 Nf5 a6 Ne7 h7 Nd5+ Kd4 Bb4 h5 Bd2 h6 Rg8 h8B Qe7 d8B+ Kd6 h7 Be6 c7 Rg3 c8B Qh4 Qc2 Rf3 Rh2 Nd7 Bb6 Qe7 Be2 f1N Ra3 Bg4 Rc3 Ne5 B8b5 Nfe3 Ba3+ Nb4 Bbc4 Rb8 a8N Rf6 a7 Qc7 Ba6 Qg7 Nc7 Qg8 a8N Bh3 Ne6 Ng6 Nac7 Nh4 Ng7 Qe8 Nce6 Qd8 Ng5 Rf5 Nh5 Rc5 Bcg4 Nd3 Bb4 Nf2 Bg7 Ng6 h8B Qc8 Nh7 Qc6 Bd1 Rg8 Ne2 g1Q Nc1 Bf1 Bge2 Qe8 Bf6 Qb5 Bh4 Rg7 Qb2 Nd3 Be1 Nf2 Qa2 Kd7 Qd5+ Kc8 Qg5 Rg8 Qg2 Neg4 Bf6 Kb8 e5 Qc6 Bg5 Ne4+ Be3 Qb5 B3f2 Qh1 Bg1 Rg7 Rhh3 Qh2 Rc2 Qg3 Nc3 Nh2 N3a2 Qf4 Rhc3 Qg4 Bf3 Bc4 Bfe2 Bd3 Ba7+
5r2/qBK1Bb2/2Rp4/k4nBq/2qB2PN/5N1Q/N1RB1Bqn/2N3Bq b - - 0 1 legal: proof: e4 g5 g4 a5 d4 b5 f4 f5 gxf5 c5 dxc5 b4 e5 b3 f6 g4 f5 g3 axb3 g2 b4 Bh6 b5 Bg5 Na3 Bf4 Nb1 Bg3+ hxg3 Ra6 Ke2 Qc7 Ke1 Kd8 f7 Rf6 exf6 Qb6 Kf2 Kc7 Ke2 Kb7 Kf2 Qd8 Ke1 Kc7 Kd2 h5 Kc3 e5 Kc4 a4 Kd5 d6 f8B e4 b4 e3 c4 e2 b6+ Kb7 f7 Ka6 b5+ Ka5 b7 e1Q b6 h4 f6 a3 g4 h3 c6 h2 c7 a2 c5 Bd7 c8N Nh6 c6 Qc3 c7 Ba4 Be7 Rh7 f8B Nc6 b8B Rg7 b7 Qe8 f7 Rh7 Ne2 g1Q Ba7 Kb4 b8B Nd4 Qd3 Qd7 Bd2 Bd1 Bg7 Nc6 f8B Qe8 Bg2 Qf1 Nc1 Qg1 Qh3 Qf2 Beg5 Qb6 Ne7 Nd4 c8N Ndf5 Ng6 Qe7 Nh4 Bc2 Bd4 Nf7 Nf3 Qe2 Ne7 Ne5 Ng6 Rh8 Ngh4 Ka5 Bfe7 Rf8 Bc7 Qb4 Nc3 Qf2 Re1 h1Q Re2 Qfg1 Rb1 a1Q N3a2 Bd3 Bcb8 Qb5+ Bac5 Qe8 Bba7 Qh5 Rf2 Qbc3 Rb6 Bb5 Re2 Be8 Rc6 Qgh2 Bg1 Bg6 Bcf2 Bf7+ Ke4 Qb4+ Bad4 Qbc3 Bdf4 Qc5 Rc2 Qa7 Bd2+ Qc3 Bf1 Q2g2 Ba6 Nc4 Bb7 Nce3 Ng6 Nf1 Nh4 Bg6 Kd5 Nh2 Ke6 Bf7+ Kd7 Qb4 Kc7 Qc3 Bdf4 Qc4 Bd2+
1NK1BRR1/Rn4bN/1R2R1p1/P3pNNr/Q4r2/1rk1B1R1/6q1/r1R1b3 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Na6 f6 Bf5 f7+ Kd7 bxa3 Nb8 a4 Kd6 a5 Bc8 Ke2 Kd7 Kf2 Qe8 Ke1 Qd8 h4 g6 f5 Bh6 h5 Bf8 h6 Nc6 f6 Nd4 Nf3 Ne6 Ng1 Ng7 hxg7 Kd6 Bb2 Bf5 gxf5 Kd7 Ba3 Nh6 Bc1 Ng8 Ke2 Kd6 Kf3 Ke5 a4 Kd4 Kf4 h5 a6 c5 a7 b5 d6 e6 a5 b4 d7 c4 Qa4 b3 Nh3 h4 Nc3 b2 Ra3 b1R Nd1 Nh6 g8R Qb6 d8N Bb4 f8R c3 f7 c2 f6 Rb2 Nc6+ Kc5 Ke5 Rh7 Rb8 Rh8 f8N Rb1 f7 Ra1 Bb5 Qd8 Nh7 Rb1 f8R Qe7 N3g5 h3 Rb6 h2 Nb8 Qb7 Rg3 Qg2 Ne3 Rb3 Be8 Nf5 d3 Nd6 Nf5 Nb7 d4+ Kc4 Be3 c1B d5 Bd2 d6 Be1 d7 Kc3 d8R Bd6+ Kf6 Be5+ Ke7 Bg7 Kd7 e5 Rf1 h1R Kc8 Rg1 Rdd6 Rh1 Re6 Rg1 Nf6 Rh5 Nfh7 Rgh1 Rf2 Rg1 Ra2 Rf1 Ra1 Rf4 Rb1 Ra3 Rd1 Ra1 Rc1+ Qc2 Rbb1 Nd8 Kd7 Rfh4 Nc6 Rb8 a8R Rf4 Ra7 Rb6 Kc7 Nb7 Nb8 Rbb4 Kc8 Rb6 Rd1 Qg2 Rdd6 Rb5 Rb6 Rb3 Rc1+
8/p2Rqr2/r3pR2/RNrBNnk1/N4PN1/B2Kb2Q/N1Rn1r2/1N4N1 b - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 exf5 b5 cxd5 b4 h4 b3 hxg5 Na6 f3 Be6 axb3 Nb8 b4 Bf7 b5 Bg6 fxg6 Bg7 Rh5 Bh6 Rh1 Bf8 Ke2 c5 b4 h5 d4 c4 b6 e6 b7 Ke7 g7 h4 g6 Kf6 b5 h3 g5+ Kf5 d6 c3 b6 c2 d5 h2 d7 Rh6 d6 Be7 Ba3 c1R Kd3 Nf6 g8N Rh4 g7 Nc6 b8N Rg4 g6 Rf4 b7 Rcc4 Na6 Rg4 b8N Qb6 d8R Qf2 d7 Qc5 Nc7 Rh4 Nb5 Rcg4 Nh6+ Kf4 g8N Rh3 g7 Kg5 Na6 Nh5 Nf6 Qf5+ Ne4+ Kh4 g8R Na5 Rg6 Nc4 Nc5 Rf4 Na4 Qc5 Ng4 Ng7 Nec3 Rf7 Rf6 Nf5 Na2 Kg5 Qc2 Rg3 Qg2 Rc8 Qh3 Rg2 Be2 Rc6 Rc8 Bd6 d8N Ra6 Nc6 Bf4 Nce5 Be3 Rd8 Nd2 Rd7 Qc7 Bd1 Rf2 Bb3 Qd6+ Bd5 Qe7 Ne2 Nb3 Rc1 h1R Rc2 Rc1 Ng1 Nd2 Bb2 Ne4 Rc5 Qe8 N4c3 Neg3 Nb4 Rh7 Ra5 Rf7 Ba3 Ne4 Nba2 Qe7 Na4 Nd2 Rcc7 Rcc6 Rc8 Rcb6 Rc5 Rc6 Rc2 Rc5 f4+
1b4NR/BK1P2QN/2p4n/4b2k/3N1r1N/1Bp1NB1B/n1rNr1R1/4r2N b - - 0 1 illegal: Other
8/2qNN1N1/nNNnPpN1/2BB4/B3B1k1/pb6/1pR1p2K/b3qNQR b - - 0 1 legal: proof: b4 h5 e4 d5 g4 g5 gxh5 a5 exd5 b5 f3 c5 f4 e5 a3 e4 bxc5 b4 a4 Ra7 Kf2 Rb7 Ke1 Rb5 axb5 Rh6 Ra2 Re6 Ra1 Re5 fxe5 Bh3 Ke2 Be6 Ke1 Bc8 Kf2 Ke7 Kg2 e3 d4 a4 c4 e2 h4 a3 d6+ Ke6 d7 Kf5 c6 g4 h6 g3 c5 f6 d5 b3 b6 Bd6 b7 Qb6 d8N Qc7 h7 Kg4 h8N Bf8 h5 Qe7 h6 Be6 h7 Bc8 c7 Na6 b8N Be6 c8B Nc7 d6 Na8 c6 Bg7 d7 Qe8 c7 Nh6 Bb7 Kf5 c8B Bf8 Nc3 Nb6 Nd5 Na4 Ra2 Nf7 Ng6 Nh8 Ndc6 Bg8 d8N+ Qe6 Be3 Nf7 h8N Nc3 Bd7 Nb5 Bc5 Nc7 Nf3 Bd6 Nge7+ Kg4 Rc2 Nh6 Nb6 Na6 Nd2 Bf7 Nhg6 Nf5 Qa1 Qc4 Ne6 Qf4 Ng7 Bc4 e6 Be5 Qd4 Nd6 Qg1 Ba1 Be8 b2 N8d7 Bb3 Ba8 Kg5 Kh3 Qe5 Bg2 Qf4 Be4 g2 Bd5 Qc4 Kh2 Kg4 Nf1 Qc3 Bb7 Qa5 Na8 Qc7 Nab6 Nb8 Ba6 Kg5 Nde5 Ba4 Na5 Bd7 Bd3 Na6 B3e4 Ba4 Bec6 Bb3 Ned7 Kg4 Ba4 Qb8 Nac6 Qc7 Ng3 Kg5 Qb1 g1Q+ Kh3 Qf2 Qg1 Qe1 Kh2 Kg4 Nf1+
1BbnBq2/rk3bQ1/Nb1q1B2/1b6/3Nn2r/2rB1R2/5PK1/RRRBB1B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 a5 b4 e5 c4 h5 f6 d5 f7+ Kd7 c6+ Kc7 b6+ Kd6 g6 e4 b7 Kc7 b5 e3 c5 a4 g5 a3 g7 e2 g6 h4 Qd4 h3 Nd2 h2 Bb2 a2 Ne4 Rh4 Nf3 Qg5 b6+ Kd8 c7+ Kd7 c6+ Ke6 Nc5+ Kd6 Na6 Nh6 g8R Qf5 g7 Nd7 b8B Nc5 b7 Ra7 Rb1 Be7 Rf8 a1Q g8B Qa3 Qg7 Bd8 Bf6 Ne4 Nd4 Qc5 Rg1 h1B Bh7 Bf3 Bg6 Bg4 Ra1 Bd7 c8B+ Bc7 Ne6 d4 Rh1 d3 Nd4 Qf3 Bh5 Bde6 Bd7 Bb3 Be8 Bc8 Bg4 Bc4 Rg1 Bb5 Bh5 Kd5 Bg4 Bd8 Bh2 Qd6 b8B Bb6 c7 Qf5 Rh1 Qf3 Bg1 Qf5 Rg8 Qf3 f8B Nf7 B8e7 Nd8 Rf8 Qf5 Bg5 Qf7 Bd2 Qg8 Rf3 Qf8 Nb3 Qe5 Bf6 Qed6 Bf7+ Kc6 Be8+ Kb7 Nd4 Be6 c8R+ Bf7 Bc3 Ng3 Kd2 Ne4+ Ke3 e1R+ Be2 Rd1 Be1 d2 Bd3 Rc1 Ke2 d1B+ Kf1 Rc3 Kg2 Rb3 Rcc1 Rc3 Rf5 Bb3 Bd1 Be6 Rf3 Bc8 Rcb1 Rh7 Rh5 Rh6 Rc5 Rh4 Rc6 Ra3 Rc2 Rc3 Rcc1
1B2rn1B/BKN1R1bN/5k2/4qr2/1B1B1qB1/BqPNnQ1n/N3b2q/1R6 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 g5 Ke4 e5 Kd5 a5 b4 a4 f4 d6 h4 a3 c6 g4 h6 g3 h7 e4 h5 a2 c7 g2 h6 e3 b6 e2 b5 e1Q b7 Qde7 b6 Qc3 f6 Qee1 f5 Qb4 Nc3 Qa3 Rb1 a1N Nf3 g1Q Na2 Ra4 c3 Rf4 Ne5+ Ke8 f7+ Ke7 Be2 Kf6 Bg4 Qeg3 Qf3 Qa6 Ba3 Kg5 f6 Nd7 Kc6 Q1h2 Rhe1 d5 b8N Qa8+ b7 d4 Na6 d3 Bc5 Qb8 Ba7 d2 Re2 Bd6 f8B d1Q f7 Nc2 Be7+ Ngf6 f8B Bc5 Bd6 Bd4 Ba3 Rf5 Bfb4 Qf4 Re1 Nc5 Kb6 Bd7 c8N Bb5 Nd6 Nfe4 Re3 Be2 Nd3 Nf2 Re7 Nh3 Nf7+ Kg6 Ng5 Ne3 Kc6 Qb3 Kb6 Qa8 b8B Qad5 Nc7 Nd7+ Ka6 Qa5+ Kb7 Rc8 h8B Rcf8 h7 Re8 Bg7 Nf8 h8B Qc5 Be5 Qa5 Bd6 Bg7 Bdc5 Kf6 Bd4+ Qae5 Nh7+
nbknK1N1/qR1rBBr1/R1NP2RN/1q2N3/1n5N/N2Rr3/3N1Q2/1r3b2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 a5 Kd4 g5 Ke5 c5 b4 c4 f4 g4 h4 a4 d4 g3 b6 g2 b5 c3 b7 c2 d6 e6 h6 a3 f6 a2 d5 Bg7 h5 Qb6 h7 Qf2 b6 Nh6 f5 Ra4 Nf3 g1N Bg5 c1R Qe1 Rd4 Na3 Rdd1 Nd2 Rc7 Bc4 Qg2 Qf2 Rf8 h8N Ng8 h6 Rf7 h7 Ne2 Rg1 Ne7 Ng6 Qf3 h8N Qd3 Nh4 Na6 b8N+ Kd8 b7 Rc1 d7 Re1 Kd6 e5 N8g6 e4 Ne5 e3 Rg3 Rf8 f7 Nc3 f6 Rg8 f8N e2 f7 Rb1 Nh7 e1R Nf6 Nb4 f8N Qf5 Nfg6 Re3 Neg4 Na4 Nh6 Nb6 Ne5 Nec6 Rg1 Na8 Rg4 Re8 Nfg8+ Re7 Bf6 Bh8 Rg6 Qg5 Na6 Qf5 b8R Qd3 Bb3 Qb5 Rb7 Bg7 Bg5 Bf6 Nb8 Rg7 Rb6 Ba6 Bc4 Ra7 Ke6 Kc7 d8R Rb7 Rd6 Ra7 Rb7+ Kc8 Rdd7 Bd8 Be7 Bc7 Kf6 Nd8 Nbc6 Bb8 Rd6 Rh7 Bb3 Rh8 Kg7 Rh7+ Kf8 Rf7+ Ke8 Rg7 Rb6 Rc7 Rb7 Rd7 Nac4 Qc5 Rg3 Re2 Rdg6 Qa5 Rc3 Re3 d6 Qa4 N4a5 Bb5 Bf7 Bf1 Nac4 Qb5 Rd3 Rbe1 Rb1 a1Q Rbb3 Rd1 Ra3 Rb1 Ra2 Qd4 Ra6 Qa7 Na3
2N3N1/1Q1N2B1/1nb1r1br/N2k2N1/2N1pq1B/2R1RPb1/1q3q1B/1NnK1B2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 d4 e5 g4 a5 g6+ Kf6 g5+ Ke7 f6+ Kd6 b6 c5 b7 h5 b5 c4 f7 h4 b6 c3 f3 h3 g7 a4 g6 e4 Bf4+ Kd7 d6 Ke6 d7 c2 d5+ Ke7 d6+ Ke6 Bh2 c1Q Ra3 Nh6 g8N Qf4 g7 Nf5 Ne7 Ra6 g8N Rh6 Re3 a3 Qb3+ Ke5 Kd1 a2 Rc3 a1Q Qb4 Qc7 d8B Bd7 Nc8 Ng3 Bh4 Bc6 d7 Kd5 d8N Bd6 f8B Ne2 Bg7 Nd7 b8N Qa7 b7 Nc1 Nf7 Qb2 Ne5 Qaf2 Nc4 Nb6 Nd7 Re6 b8N Be5 B2g3 h2 Nh3 Bc7 Rg1 h1B Ng5 Bg2 Bh2 Bh3 Re3 Bf5 Qb3 Na4 Qb7 Bg6 Rg2 Nb6 Rc3 Qc5 Re2 Qf2 Ree3 Qf5 Nc5 Bg3 Nb3 Qf4 Nba5 Ra7 Qa8 Rf7 Nd7 Rfe7 Bh8 Rh7 Qb7 Rh6 Bg7
1K2nBkb/1P1Q1B1R/1rRBpr2/B2b2N1/1nN1r2B/q1B1B1n1/n3N3/2N5 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 g5 Kd4 a5 Kc5 g4 f4 c6 d4 a4 b4 g3 h4 g2 f6 a3 f5 a2 b6 Ra4 b7 Qe8 Kb6 c5 Kc7 c4 b5 c3 h6 c2 d6 Rh7 h5 Ra6 d5 Bg7 b6 Bf8 d7 Rg7 d8B Ra4 h7 Rag4 h8B Nh6 d6 Rd4 d7 Ng4 h6 Ra4 h7 Ne3 Na3 Rb4 Nc4 Ng4 Ne2 g1R Be3 Rb1 Nc1 Nc6 b8N Nb4 b7 Rg5 Nc6 Bg7 Nd4 Rg6 Kb8 Qf8 Ba5 e6 d8B Bd7 Nde2 Bc6 Qd7+ Qe7 Bg2 Re1 Be4 Bd5 Bd3 Kf8 f7 Nf6 Be4 Ne8 Rh2 Bb2 Bc3 Qc5 Bh4 Rf6 h8N Kg7 f8B+ Kg8 Nf7 Qe7 Nb3 c1N Ng5 Qc5 Bf3 Qe7 Bh5 Qc5 Ng1 Ne2 Nc1 Ng3 Bd6 Re2 Bf2 Re4 Be3 Rh6 Nge2 Rf6 Be1 Be5 Bc3 Rb2 Rb1 a1N Bg6 Na2 Bf7+ Kg7 Rh3 Rb6 Rb5 Qb4 Rc5 Nc2 Rc6 Qa3 Rh1 Ncb4 Rh2 Rh6 f6+ Kh8 Bh5 Bd4 f7 Rf6 f8B Kg8 Rf2 Rh6 Rf7 Bh8 Rh7 Rf6 Bf7+
N2n3n/1rN5/4B1nB/4bn2/2q1R3/N1kbqR1R/r3RpP1/RRRKN1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Ke7 e4 h5 b4 c5 d6+ Ke6 g6 a5 g7 f5 b6 h4 d5+ Kd7 b7 c4 b5 a4 b6 a3 Rh3 f4 Nf3 a2 Na3 c3 Bc4 Nc6 b8R c2 b7 Nh6 g8R Rh7 Rgg3 Qe8 Bd2 c1N e6+ Kd8 e7+ Kd7 e5 Nd3+ Ke2 Bg7 Qg1 Nf7 Ne1 f3+ Kd1 f2 Bh6 Ncd8 Rf3 Nh8 Bb3 Qf7 e8N Nf4 Nc7 Nfg6 Bc4 Ra6 Na8 Qe8 Rc1 a1Q Bb3 Qf7 Ba2 Qc3 e6+ Ke8 d7+ Ke7 Bc4 Kd6 e7 Ke5 e8N Kd4 d6 Be5 Nec7 Qe3 Ra1 Kc3 Be6 Nc6 d8R Ra5 Bd7 Qc4 Re8 Nd8 Be6 Bd7 Rc8 Bb5 b8R Rg7 Rhg3 h3 d7 h2 Rh3 h1N Rb6 Ba6 Rbb1 Ng3 Re7 Nf5 Re8 Nc6 d8R Rh7 Rd2 Nd8 Re2 Rg7 Nac2 Ra2 Na3 Bb5 Na6 Rb7 N6c7 Bg3 Bg8 Bd6 Re4 Be5 Bd5 Qc6 Bf7 Bd3 Be6 Qc4 Rb5 Qb4 Rb8 Qc4 Rbb2 Rb5 Rbc2+ Kb3 Rcc1 Kb4 Nec2+ Kc3 Rb6 Rd5 Rb4 Rb5 Rbb1 Rb7 Ne1+
5bbn/4r1RR/3RR1BN/Kb1R1bN1/1rBR1n2/2p5/2P2k2/QBBr2nR b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Nf6 g4 Rg8 h5 Ke7 g6 Ke8 g5 Bf8 h6 Rh8 Bh3 Ng8 Bg2 Qf6 Bf1 Qg7 hxg7 Be7 Qd4 Ba3 Qd1 Bf8 Kd2 Ke7 Kc3 Ke6 b4 Kf5 e3 Ke4 b6 f5 b7 a5 b5 c5 e6 d5 b6 h5 e7 h4 e8B a4 Nh3 a3 Bc4 a2 Na3 f4 Nb5 f3 Nd4 f2 Nf5 f1B Nh6 Na6 b8R Ra7 b7 Ne7 g8B Bf5 g7 Nc7 g6 Ne6 Rd8 Nf4 b8R d4+ Kb3 d3 Rb4 d2 Rd5 Rb7 Ka4 Rh7 Ka5 Rb6 Qe1 Kf3 e4 d1N e5 Nc3 e6 Nce2 Ng5+ Kg2 Bgf7 h3 g8R h2 g7 Neg6 e7 Ng1 Rh8 Be2 Qd1 Kf2 g8R Rg7 Rh7 Nh8 Rab1 a1R+ Ra4 Rb7 Rb6 Rb1 Ra6 R7b4 Rad6 Bed3 Ba2 c4 Be6 c3 Bg6 Bb5 e8R Re7 Rgg7 Rd4 Rc4 Rb4 Bg8 Rd2 Rcd4 Rd3 Bb2 Rd2 Qa1 Rd1 Bb1 Nf3 Re1 h1B Bc1 Bg2 Rh1 Ng1 Re5 Ba8 Bc4 Bd5 Red8 Bg8 Ree6 Ng2 R6d5 Nf4 R8d6
1r1bB2r/2r1B1N1/p2Rq1bp/PB5n/BkNB1NNR/3B3B/Knb3Q1/8 b - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 d5 c4 e5 fxe5 Bh3 cxd5 Bd7 b4 Be6 bxc5 Bc8 e4 Kd7 g4 b5 a4 f5 d4 h6 Kd2 a6 Kc3 b4+ Kb3 f4 d6 Kc6 d5+ Kd7 g6 f3 e6+ Ke8 d7+ Ke7 e5 f2 g5 Qb6 d8B+ Ke8 d6 Bb7 g7 Be7 g6 Bg5 c6 Rh7 c7 Nd7 c8B Bc6 e7 Be4 a5 Qa7 Ne2 Bf4 Ka2 Bd2 Rh4 Bh1 Bb2 Bb7 Qc2 Be3 Bd4 Nb6 Na3 Qb8 Bch3 Be4 Nf4 Qc8 Nc4 Rb8 Bd3 f1R Qg2 Qe6 Rd1 Nf6 g8B Kd7 g7 Kc6 d7 Kb5 e8B Nh5 Be7 Rh8 Rd2 Na4 d8N+ Qc6 e6 Nb2 Bgf7 Bg6 g8N Rc1 Nf6 Rc2 Ng4 b3+ Ka1 Bf2 Bd7 Ka4 Bfe8 Be1 Rd1 Bb4 Rd2 Bd6 Kb1 Kb4 Rd1 Qd5 Ba4 Qe5 Beb5 Qe4 Bg5 Bc7 e7 Qe6 e8B Rc3 Nd6 Bb6 Be7 Rc7 Ka1 Nc4 Rd2 b2+ Ka2 b1B+ Ka1 Qe2 Nde6 Nb2 Ng7 Bc2 Ka2 Qe6+ Nc4+ Rc5 Re2 Bd8 Re5 Rf8 Rd5 Rh8 Rd6 Rcc8 Bb6 Rc7 Bd4
5B2/3R1rp1/BqBK2B1/2r1N3/q2nB3/BpRR3P/BR1b2bN/1bQ2nk1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 f5 Kf4 c5 d4 b5 a4 c4 e4 c3 e6+ Kd6 e5+ Kc7 h3 b4 h6 c2 e7 Bd7 e8B Nc6 d6+ Kb7 h7 Rb8 a6+ Kb6 a7 Rb7 a8B Be6 a5+ Ka7 a6 Kb6 d7 Bb3 e6 Ba4 e7 Rb8 a7 Rb7 d5 Kc5 d6 Rc7 Bg6 Bb3 e8B Rb7 Ba6 Qf6 d8B Nh6 d7 Ng4 Ra3 Nd4 Nf3 Qb6 Bef7 Nh2 Ke5 f4 Nbd2 Ba2 Rd3 Bb1 Ba2 b3 Nc4 Nf1 Nh2 f3 Bh4 f2 d8R Rc7 Bae4 Rf7 a8B Rg8 Bb2 c1Q h8R Be7 Qc2 Bg5 Rd7 Bd2 Bac6 Rc8 Qd1 Qc3 Qc1 Qcb4 Bf6 Rc7 Rc8 Qa4 Rg1 Ne3 Re1 f1B Re2 Bg2 Ba3+ Bb4 Re8 Nf1 Re6 Rc8 Red6 Rc7 Be7 Rc8 Bf8 Rc7 Bb2 Bd2 Ba3+ Qbb4 Bf3 Bh6 Bcd5 Nc2 Bb2 Qb6 Rc3 Rc8 Ke6 Kd4 Bfe4 Rc5 Ne5 Bf4 Ba3 Be3 Nd3 Bh6 Rd2 Ke3 Bc6 Bf4 Rd5 Bg5 Kd6 Bh6 Rf5 Nd4 Rd1+ Ke2 Rf6 Bf4+ Ne5+ Kf2 Rdd3 Kg1 Rf5 Bg5 Rf2 Be3 Rfc2 Bd2 Rb2
2N3r1/Bk2RQpN/2B5/1B2B1q1/NnpN4/3rRq2/N1PqbN2/1K3bnN b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ke7 f4 Na6 e4 Rh6 e6 Nb8 f5 Qe8 Qg4 Kd6 f6 Be7 fxe7 Kc5 e5 Rh8 Qd1 Qd8 Kd2 Kb6 e8B f5 h4 c5 b4 a5 e7 d5 e6 d4 h6 a4 h5 a3 h7 f4 h6 a2 Bb2 d3 Kc1 f3 Nc3 f2 Rh3 Ra5 Nf3 Nc6 Bd7 Nf6 e8N Ra3 e7 Ng8 Nd4 Ra4 Nf6 Na5 e8N Nc6 Nd6 Ra6 Nde4 Na5 Na4+ Ka7 b6+ Kb8 b7 Re6 b5 Qc7 Qh5 Re5 Qf7 Nc4 Nh5 Qd8 Re3 Rf5 Nhg3 Ne7 Nh1 Ka7 b8N Qa5 b6+ Kb7 Na6 Rg5 Nb4 Rg8 h8N Ne5 h7 Rh5 Ng6 Nf3 h8N Rd5 Nf8 Nc6 Nhg6 Ng1 Nh7 Qb5 Be2 f1B Ne7 Rd6 Rb1 a1Q Nef2 Qa3 Na2 Nb4 Ra1 d2+ Kb1 Qa5 Beb5 Qd3 Bc3 c4 Bb2 Qe2 Bc3 Qf3 Bb2 Kb8 b7 Kc7 b8B+ Kb7 Ba7 d1Q+ Bc1 Qd2 Bb2 Kc7 Bc3 Bb7 Nc8 Ba8 Nf5 Rd3 Be5+ Kb7 Nd4 Qd8 Kb2 Qh4 Rae1 Qg5 Kb1 Be2 Bf6 Kc7 Re7 Bc6 Be5+ Kb7 Bd6 Bf1 R1e3 Be2 Be5 Bd5 N2c3 Be6 Na2 Bh3 Qh5 Bg2 Qf7 Bgf1 Bdc6+
1rBBbB2/3PnNn1/3BpN1Q/N1R3K1/N4R2/2q3N1/Nr1Nq1p1/2b1k1r1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 b4+ Kd4 h4 a5 h6 c5 b6 c4 b5 e6 b7 c3 h5 g6 d6 a4 d7 c2 b6 a3 f6 a2 f7 Qc7+ Kg5 Qc3 d8B Qc4 f4 Qd5+ f5 Qd6 f6 Qe7 h7 Qd6 h6 Qc6 Nf3+ Ke4 d4 Qc7 d5 Nd7 b8N Bd6 f8N Be7 d6 Ba6 b7 Nc5 d7 Qh2 Nc6 Qd6 b8N Qd3 Qd2 Qd6 Rh5 Nd3 Na5 Ra7 Nbc6 Qh2 Nb4 Nf4 Ba3 c1R Bc4 Bc5 f7 Be3 Bf1 Bb7 Ba6 Qe2 Rh4 Ba8 Bc8 Ne7 Rh5 Rg8 h8N Rb7 h7 Rb8 Rh4 Rc2 Qc1 Bd2 Nc3+ Ke3 Na4 Nh5 Rf4 Kf2 Qh1 Rb2 Rc1 a1Q Na2 Ng7 Qh6 Bc6 Bd6 Be4 Rc5 Bc1 Nd2+ Ke1 Kf6 g5 Nhg6 g4 h8N g3 Nh7 g2 Nh4 Rf8 Kg5 Bg6 Nf5 Bh5 Nf6 Bg6 Nb4 Qa3 Ng3 Qc3 Na2 Bh5 Ng6 Rh8 f8B Rh7 Nh4 Be8 Ng6 Rh8 Ne5 Rh7 Qg6 Rh1 Nf7 Rg1 Qh6
k7/1p1b2Qp/2bRB2P/K1NnB1N1/Nn1B1RB1/bB1rb1N1/2b5/2B2Bq1 b - - 0 1 illegal: No proof kernel
1n1BBN2/1qrR3K/3p1r2/N2QR2N/2bpp3/R2P2Nn/1RR3k1/2RR1r1q b - - 0 1 illegal: Other
1k6/N3q1Rb/BpQ1q2p/N2nBR2/1Rp4r/4N3/R1RbRRKP/2n3Nn b - - 0 1 legal: proof: e4 d5 g4 a5 b4 f5 bxa5 d4 exf5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Nf6 g5 Ng8 f6 Qd6 f5 Qd8 f7+ Kd7 Kf2 Ra6 Ke1 Rf6 gxf6 Nh6 Bc4 Ng8 Ba6 Qe8 Bf1 Qd8 Kf2 c5 d4 Kc7 a4 g5 a6 e5 a5 h6 d6+ Kd7 a7 e4 a8R e3+ Kg2 e2 d5 e1Q a6 g4 a7 b6 Qf3 g3 Ra4 Qd1 Na3 Qe1 Nc2 Rh7 Bb2 Be7 f8R Qc3 f7 Bg5 f6 Bf4 Rb4 Rh8 Ne3 Ba6 Re8 Kc8 f8R Be2 f7 Qb3 Be5 Nf6 d7+ Kb7 d6+ Ne4 Re6 Nc6 Rc8 Qe7 a8R Nf2 Ra2 Bd3 Rg6 Qbe6 Rg7 Bh7 Ba6+ Ka7 d8N Rg8 d7 c4 Nb7 Bg5 d8N Bf4 Rc7 Kb8 Na5 Bg5 Re8 Bf4 f8R Bg5 Rb1 Nb4 Rf5 Nd5 Rb4 Bf4 Rgf7 Rg4 Rg7 Rh4 Rd7+ Nc7 Rdd2 Bg5 Qc6 Bf4 Kf3 g2 Rdc2 Bg5 Ne2 Bf4 Rf1 g1N+ Kg2 Nh1 Rf2 Bg5 Nf1 Bd2 Ne3 Nf3 Ng1 Nd4 Re2 Nb3 Ref8 Nc1 Rff2 Q6d7 R8f5 Qee6 Ndb7 Qd8 Nd6 Nd5 Nc8+ Qc7 Na7 Qcd6 Bf6 Qde7 Be5+
3R2rN/1n1B1Q1B/2Rp3k/rqBrBp2/2R1p3/3P4/B2R1N1r/bB1KBb2 b - - 0 1 illegal: No proof kernel
3R2RB/1B2p2p/3BnN1p/BnPp3b/R4rq1/QNb1k1Br/K3R3/B3B3 b - - 0 1 illegal: Other
2K2B1B/1B2b1p1/4pNPB/3qp1R1/1q1N1kRn/r3rnR1/R1QR1p1R/R7 b - - 0 1 illegal: Other
3K2BN/n2BN3/1n3pPr/kb1q1b2/b1N3N1/R1N2BB1/3b4/3BRNqQ b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Qf6 c5 Ra5 bxa5 Qd8 Kd2 d5 Kd3 Kd7 Kd4 Kc7 e4 h5 g4 a3 c4 h4 a6 f6 b6+ Kc6 g6 a2 b7 h3 a7 h2 a8B Kc7 g5 Bh6 g7 Qe8 g6 Qe7 c6 Kb6 c7 Na6 b8N Qf7 e6 Bd2 c5+ Ka5 c6 Bb4 e7 Be1 e8B Qf8 e5 Nc5 e6 Na4 e7 Bb4 Nd2 Be6 c8N Bh3 c7 Nb6 Be2 Ba3 Bd7 Qf7 e8N Be7 Ncd6 Nc4 Kc5 d4 Kc6 d3 c8N Qf8 Kc7 Bf5 Nc6+ Ka6 Nf7 Bb4 Nce5 Ne7 g8B Nb6 Ng4 Nc6 Nf1 Ka5 Ne7 d2 Ned6 Rh6 Nh8 Na7 Baf3 Qf7 Kd8 Qd5 Qe1 d1B Bf4 Bb3 Bd1 Bd2 Bg3 Ba4 Ne2 Bb5 Rg1 h1B Nc3 Bg2 Qe2 Bh3 Qh2 Bc2 Qh1 Bca4 Ngh2 Be6 Ng4 Bf5 Nc4+ Ka6 Rb1 a1Q Rb3 Qb1 Ra3 Qc1 Nfh2 Qa1 Re1 Qb1 Nce5 Ka5 Nf1 Qc1 Ne2 Qcc5 Nc3 Qg1 Nc4+
1B1q1RBR/1R1n4/4B3/2R1N1nK/N4pQ1/qp3rqB/1n1P1B1k/r2RB3 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 d4 g5 d3 cxd3 Nc6 d4 Nb8 d5 Kd7 Bg2 Ke7 Bf1 Ke8 h3 Bd7 Bg2 Be7 Nf3 Bf6 gxf6 g5 Nh4 g4 Nf3 g3 Bf1 Be6 Ng1 Bf7 Qb3 Bh5 Qd1 Bg4 hxg4 Qd7 Nc3 Qc8 Nb1 Qd8 e4 Kd7 Ke2 c5 Kf3 b5 a4 h5 f7 f4 f8B b4 e6+ Kc7 d6+ Kc6 e7 c4 e8R b3 e5 Kd5 e6 Ke5 a6 g2 a7 c3 e7 c2 g5 h4 Kg4 h3 a5 h2 g6 Nd7 a6 Rh5 g7 Ke4 Bb2 c1N Nc3+ Ke5 Ra5+ Nc5 d7 Rh6 Nf3+ Kf6 Na4+ Kg6 Be5 Rc8 a8R Rh5 a7 Qc7 d8B Ne6 Rb8 Nd3 a8R Ng5 Rb7 Rh3 Rc5 g1Q+ Bg2 Qb6 Bb8 Nb2 Ne5+ Kh6 Qe2 Rf3 Kh4 Rc7 Bh3 Nf6 Be6 Qe3 Rd1 Nd7 Qg2 Qb4 Qg4 Rc6 Bb6 Qa3 Rc8 Rd6 e8B Qd3 B6a7 Ra6 Be7 Qg6 g8B h1Q+ Qh3 Qg2 Qg4 Qd3 Bg6 Qd6 Bgf5 Qc7 Rf8 Qd8 Qg3 Ra5 Bh3 Qh2 Qg1 Qf2+ Kg4 Qg3+ Kf5 Qe1 Kg4 Ra6 Rf5 Nd3 Rcc7 Rc6 Rf7 Qc8 Bh7 Ne4 Bh4 Nb2 Qg2 Qg1 Be1 Rc1 Baf2 Ra1 Bba7 Ng5 Rc5 Qc7 Rh8 Qd8 Bb8 Qh2 Kf5 Kh5 Rff8 Qg1 Bd4 Qf2 Be3 Kh4 Kg6 Rb1 Kh6 Rc1 Bhg8 Ra1 Qh1 Kg3 Kh5 Ne4 Bd4 Ng5 Qf1 Kh2 Qb5 Qg3 Bdf2 Rc3 Qe2 Re3 Qg4 Rc3 Rb6 Rf3 Rb7
2r3BQ/2b3N1/2R4K/1R3pRB/2P2b2/B1kqR1p1/1pN1r2R/b1B1BB1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 b4 c4 Nd7 cxd5 Nb8 Nh3 c5 Ra3 c4 Rg1 Nf6 Ra1 Ne4 Rh1 Na6 Ng1 Nc7 b3 Nb5 axb5 c3 Qc2 Nd6 Qd1 Nc4 bxc4 Bg4 Ra6 Bf5 Ra1 Bc8 Kf2 Ke7 Kg3 a5 Kh4 f5 Kg5 g6 d4 a4 e4 c2 h4 b3 b6 a3 h6 b2 h5 a2 b7 Be6 b8R Qb6 d6+ Kf7 d5 Ra7 h7 Rg8 h8R Re7 d7 Qb3 d8R Bg7 h6 Bc8 h7 Rge8 d6 Ke6 d7 Bb7 Qd4 Qf3 Ne2 Qf2 Nf4+ Kf7 Rh2 Ba8 Nh5 Ke6 Na3 Bf6+ Kh6 g5 Rdc8 g4 d8B g3 Rb5 Qf3 Rg8 Qe3+ Rg5 Rd7 h8B Qg1 Ng7+ Kf7 e6+ Kf8 e5 Rf7 e7+ Kg8 e6 Be5 Rc6 Qe3 Rb1 Ref8 e8B a1B e7 Qd3 Bc7 Bb7 Bd6 Rf6+ Bg6 Rc8 e8B Re6 Bc5 Re7 Bh5 Bc7 Bef7+ Kf8 Bg8 Ba8 Bf4 c1B Nc2 Bb7 Be3 Ba8 Bf2 B1f4 Re1 Bb7 Re3 Ba8 Rd6 Bh1 Ba3 Re5 Qc3 Ke7 Rc6+ Kd7 Ne6 Re4 Bf6 Re5 Bd8 Re4 Qh8 Re5 Rcc5 Kd6 Ng7 Re8 Rb4 Re4 Rc6+ Ke5 Rb5+ Qd5 Ne1 Kd4 Bde7 Re5 Beb4 Qe4 Bd2 Qd3 Bc1 Kc3 Nc2 Ree8 Rf3 Re1 Re3 Re2 Be1+
nB1nN1r1/1N1nNN2/q3R3/BqqN4/2BPb2r/1Q1bK3/NR6/bBk3B1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 g4 a5 f4 h5 b4 e5 d4 c5 g6+ Kf6 d6 a4 d7 a3 b6 a2 g7 c4 b5 h4 g5+ Ke7 g6 Kf6 b7 e4 b6 e3 Nf3 h3 Ne5 c3 Nf7 h2 Bd2 c2 Nc3 c1Q Rb1 a1N Na2 Ra7 Qb3 Qc3 Rb2 Ne7 g8B Nd5 g7 Bb4 Bh7 Qe8 d8N Nc6 b8B Rg8 b7 Nb6 Bd6 Ra3 b8B Qc5 Nb7 Nd8 Bdc7 Na8 Ba5 Be6 Kd3 e2 Be3 e1Q Bg1 Qd1+ Ke3 Qeb5 Bc4 Qf1 Bg6 Bc3 Bh7 Ke7 f6+ Kd7 f5 Kc6 Bg6 Bd5 Bh7 Be4 Bg6 Bd3 Bh7 Rh8 g8N Qa6 Bg6 Rh4 Bh7 Qg2 Bg6 Qgd5 Bh7 Qcb5 Bg6 Qdc5 Ne7+ Kd7 Nd5 Kc6 Bf2 Ra4 Re1 h1B Bg1 Bhe4 Nh6 Qa3 f7 Qac5 f8N Ra3 f6 Ra4 Qa3 Nb3 f7 Rb4 Ne6 Ra4 Rbb1 Ba1 f8N Rb4 Nec7 Ra4 Qb2 Ra3 Nc1 Ra2 Qc3 Rg2 Rb2 Rg5 Bh7 Rg8 Ne8 Qd6 Rg2 Nc5 Rb2 Nd7 Ng6 Qdc5 Na2 Qbb4 Bb3 Kb5 Bc4+ Ka4 Nge7 Qbb5 Qc2+ Ka3 Nf7 Qaa7 Rf1 Qab6 Rf6 Q6a6 Re6 Bf1 Bg3 Bh1 Bb8 Be2 Bhd3 Be4 Qd1 Bf1 Rf2 Be2 Qa4+ Kb2 Bc2 B2d3 Bb1+ Bc2 Nab4 Kc1 Qb3 Bcd3 Rh2 Qaa7 Rb2 Qaa6 Na2#
KQB5/R5q1/R3brqB/1Pk2nbn/2Rq3N/1r4nR/3B3B/RRN1Bb2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 e5 g4 h5 b4 c5 f4 a5 d4 a4 b6 h4 f6 a3 b7 h3 f7 c4 f5 a2 b5 h2 g6 c3 g7 c2 g5 Be7 f8B Qa5 f6 Rh7 f7 Bg4 g6 Qa4 Nd2 Bd7 Bh3 Nc6 Nb3 Ra5 Bd2 c1Q Nf3 Be8 Nh4 Nh6 g8R Qb4 g7 Nf5 b8B+ Kd7 d6 Bf6 Kd5 e4 Rh8 e3 g8R e2 Bfh6 e1N f8B Bd8 Rg4 Qc2 Nc1 Ra3 Qe2 Qba4 Qe5 Ng2 Be1 Bg6 Bhd2 Bg5 Bh6 Rf7 Rf1 h1B Rh7 Kd8 d7 Rb3 Qh8+ Ke7 d8R Bh5 Bh2 Ng3 Rd6 Qg6 Qb8 Nf4+ Kc5 Bg2 Kb6 Bd5 Kb7 Be6 d5 Nd4 Ra6 Ndf5 Ka8 Qd4 d6+ Kd7 Rb1 a1Q Rg1 Qdg7 Rh1 Rf6 Rf1 Nd5 Rc4 Be2 Rf3 Nf4 Bg4 Ngh5 Rh3 Qd4 Raa1 Nhg3 Ra6 Bf7 Raa1 Ke6 d7 Bf1 d8R Nfh5 Rd6+ Ke5 Rda6+ Kd5 Rca4 Kc5 Rb4 Ne3 Bc8 Nef5 Rba4 Be6 Rb4 Qg8 Rha7 Q8g7 Rc4+
bRb2n1b/Br3B1k/2BB4/2R1Bb2/2n1b1R1/qN2r1QP/6Rn/2R1NBK1 b - - 0 1 illegal: No proof kernel
1n1Bn1q1/1bBNn3/1Bk1N2R/2B1br2/2q1n3/4PRR1/r2B1Q1K/1RR1q2B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg2 g5 h4 a5 b4 f5 d4 c5 e3 g4 d6 c4 b6 g3 b7 f4 b5 a4 e6+ Ke8 h6 a3 d5 a2 h5 c3 d7+ Ke7 b6 Kd6 h7 c2 e7 Ra3 e8R Be7 h6 Bf6 Ne2 Rd3 Bd2 c1Q Qc2 Bg7 Rf8 Na6 b8B+ Nc7 b7 Ne7 Na3 Qe8 d8B Bf6 Rb1 a1Q Nd4 Qd1 Ba7 Qe1 b8B Qa2 Ne6 Qc4 Bc5+ Kd7 d6 f3+ Kg1 g2 Kh2 g1N Bg2 Kc6 d7 Ne2 Rc1 Rg8 h8R Nd4 h7 Rg5 Rhg8 Rf5 h8R Bb7 Rg3 Be5 Rh6 Rc3 Rff6 Qg8 Rf1 Rd3 Bh1 Ne8 Bbc7 Rb3 B7b6 Rb2 Bdc7 Ra2 d8B Qa4 Rf2 Qc4 Rg2 f2 Rg1+ Kd7 Qb2 Ndc6 Rf8 Nb8 Rb1 Rg5 Rf3 Rf5 Rf1 Kc6 Qc2 Qee2 Rfc1 Qe1 Qb2 Qb4 Nc4 Qb3 Nd6 Qc4 Ne4 f1N+ Kg2 Nh2 Nf6 Ng4 Nd7 Ngf6 Kh2 Ne4 Bdb4 Kb5 Qf2 Kc6 Bd2
4r2B/1b2b1Rn/4R1N1/q1P1b1RK/1NrBq2B/k4BrB/b2RR2n/B5Q1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 g5 Kf3 e5 Kg4 Ke7 c4 a5 h4 d5 b4 e4 f4 a4 h6 e3 c6 Kd6 c5+ Kc7 h7 a3 h5 d4 h6 a2 Rh5 d3 Bh3 d2 Nf3 e2 Bb2 e1R Nc3 Qd5 b6+ Kd8 b7 Kc7 b5 Qd4 b6+ Kd8 c7+ Kd7 f6 Ra4 f7 Ra3 Ne5+ Ke6 Ng6 Rb3 Nd5 Nd7 b8B Qf6 b7 Qe7 Bd4 Re4 Nb4 Rc3 Rc1 a1Q Qg1 Qa5 Rc2 d1B+ Re2 Bb3 Bg2 Ba2 Bf3 Qe8 Rd2 Be7 f8R Ra3 Rf7 Nf8 Rg7 Rd3 Ba1 Rc4 Rhh2 Re3 Kh5 g4 Rhe2 g3 Bd4 g2 f5+ Kd7 f6 Rb3 f7 Nf6+ Kg5 Ng4+ Kh5 Rg8 h8B Nh7 f8R Nh2 Rf6 Re3 Re6 Re4 Qh1 g1B Ba1+ Bd4 Qg1 Nf8 h7 Rg4 Ba7 Rg3 b8R Bb7 c8B+ Kc7 Ra8 Be5 Bd4 Qc6 Bd7 Qe4 Re8 Bd5 Bb6+ Kb7 Bd8 Ka7 Nc6+ Ka6 Rg2 Kb5 Nb4+ Bc6 Bc8 Ka4 Ba1 B7d6 Bh4 Be7 Rge2 Bd5 Rd8 Bb7 R8d5 Ka3 Bd7 B5f6 Rg5 Bc3 Rb6 Be5 Bh3 Nd7 Re6 Re8 Rg8 Nf8 Bf6 Rd8 h8B Nh7 Rg7 Rg8 Bd4 Re8 Ba1 Bb8 Bfc3 Be5 Bd4
1qk3Nq/5BB1/Nn1qn1b1/NP4q1/1n2B3/4N1N1/r2B1KRb/1QNrB2R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 g4 e5 f4 a5 b4 h5 f6 c5 b6 a4 g6 h4 f7 a3 b5 c4 d6 a2 g7 c3 b7 h3 f5 e4 f6 e3 d5 h2 g5 c2 g6 e2 Bg2 Ra4 Kf2 e1N Be4 Be7 f8N+ Ke8 Na3 Bh3 Nd7 Ra5 Ne2 Ra4 Ne5 Be6 Nac4 Qc7 f7+ Kd8 f8B Nf3 d7 Bf5 Ng3 Bd6 Bd2 c1Q Nd3 Nd4 Ne3 Nbc6 b8N Nge7 g8B Nb4 g7 Nc8 Bf7 Bg6 g8N Ne6 Bg7 Nb6 Na6 Qb8 Qc2 Qa3 Rag1 a1Q Rg2 Qe5 Nc1 Qg5 Qb1 Be5 Nc5 Kc7 d8B+ Kc8 d6 Qd3 Bdf6 Ra2 Na6 Bf4 Bc3 Be5 Nh6 Rd8 Ng8 Qd5 Rd1 h1Q d7+ Kb7 Rf1 Qh8 Rh1 Bd6 Nh5 Bh2 Ng3 Rf8 d8N+ Kc8 Nc6 Rd8 Na5 Qde5 Nd1 Rd4 Ne3 Qed6 Bc2 Rd3 Be1 Rd1 Bcd2 Ra4 Bd3 Ra2 Be4
QbN1R3/1N2B2r/qn1NPn2/1NrR4/2r2qR1/2Rr2nR/4bNR1/2kBK3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 c5 d4 g5 e4 a5 b6 f5 b5 a4 b7 f4 e6 Kf6 b6 f3 e7 a3 e8R g4 h6 a2 e5+ Kf5 d6 Ke4 h5 g3 d5 c4 d7 c3 e6 g2 h7 c2 h6 Nc6 b8R Qg5 d8R Ra3 d6 Nge7 d7 Qa5+ Nc3+ Ke5 b7 Bg7 Be2 Qa4 Rh2 Na5 Nb5 Ke4 Nh3 Rd3 Bg5 Be5 Rc1 Nd5 Be7 Ke3 Nf2 a1Q Ra8 g1N b8N Ba6 Nc6 Qf4 Rg2 Nc4 Nca7 Nf6 Nc8 Nb6 Reg8 Bb8 R8g4 Qaa4 Re8 Qa1 d8N Qa3 Nb7 Qa1 Rb1 c1R Rb3 Rc4 Rc3 Qa2 Qc2 Qa3 Bd1 Ne2 Rd8 Ng3 Qa2 Qa4 Rd5 Qa5 Ncd6 Rhc8 h8N R8c5 h7 Qa3 Nc7 Bb5 Qa1 Qa6 Ng6 Bc6 h8R Ngh5 Be2 Qa5 Nh1 Ba7 Rae8 Bb8 Rf5 Ba4 Bf8 Bd1 Ne7 Qb5 Kf1 Kd2 Qa8 Qa4 Rd5 Qa6 Ncb5 f2 Rh2 Qe3 Nec8 Qf4 Be7 Ng3+ Kg2 f1R Nf2 Re1 Bf3 Re5 R8h3 Rh5 Kg1 Rh7 Rg2 Ngh5 Ra3 Kc2 Kf1 Kc1 Ke1 Ng3 Rb3 Be2 Ra3 Bf1 Bd1 Be2 Rc3+
2k1q1b1/B1Bb2NR/bP1n2Nr/1q1BrR2/3QBb1R/n6q/1RB1R3/4K1R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 e4 f5 d4 a5 g4 h5 g6 c5 b6 h4 g5 f4 b7 a4 e6+ Kc7 g7 f3 d6+ Kc6 g6 a3 e7 Kd7 e8B+ Ke6 b5 h3 d7 a2 d5+ Kd6 e5+ Kc7 d6+ Kb6 e6 c4 e7 c3 Nd2 h2 Bg2 c2 Nh3 Nh6 g8R Bg7 Nf1 Rh7 Ng3 Bf6 g7 Nf5 Rh8 Na6 g8B Nc7 Nf4 Ra5 Ng6 Rh6 Nh5 Bg5 Rh7 Bf4 b8R+ Ka7 Rf1 h1B Bd5 Ba6 Bd2 c1Q Be3+ Qc5 Qd4 Qb6 Rc1 a1Q Ng7 Qa3 Bf2 Qc8 d8B Qd3 d7 Nd6 Rb1 Qf5 Rb2 Qh3 Rg1 Qc5 Rb6 Qa8 Rc6 Kb7 Be4 Qd5 Rc5 Kb8 Be3 Qc4 Rf5 f2+ Kd1 f1B Ke1 Bd3 Bd5 Qa4 Bge4 Bc4 Bef7 Bf3 e8R Bg4 Bc2 Ba2 Bde4 Qc4 Bfd5 Qcc6 b6 Ncb5 Bc7+ Kb7 d8R Na3 Rd7 Qd8 Reh8 Qe8 Re7 Kc8 Bb8 Rc5 Ba7 Qb5 Bf2 Bc4 Bh4 Bb3 Ree5 Bc4 Bd8 Ba2 Bc7 Bc4 Rg5 Bd7 Ref5 Ba2 R5g2 Bb3 Re2 Bc4 Bg8 Re5 Bgd5 Ba2 Rh5 Bb3 Rf8 Bc4 Rff5 Ba2 Rh4 Bb3 Ba8 Bg8 Bad5
B7/n3B2N/nk1N2KN/2b1rP1R/nr1qBN2/1B1B1Qp1/2bn1NnR/7B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Kd3 Kd7 f4 Kc6 h4 b5 c4 e5 a4 g5 a6 g4 a7 d4 Ke4 b4 h6 g3 f6 d3 h5 d2 h7 b3 a5 b2 h6 Be6 f7 Ne7 a6 Qd7 Ra2 Kc7 c6 Qc8 c5 Qb7 Rh5 Rg8 h8N Qb5 h7 Qb7 Ng6 Bb3 h8N Qb6 Na3 b1N Bd3 Nc8 Kf5 e4 Qf3 d1N Nh3 e3 Nb5+ Kd8 c7+ Kd7 Nd6 e2 Nf2 e1N Ba3 Qb5 Rd2 Nb6 c8B+ Kc7 Be6 Qb4 c6 Ba4 Bb3 Bg7 f8N Qd4 Nhf7 Nc8 Nh6 Ndc3 Nh7 Kb6 c7 Ng2 Kg5 Rh8 f5 Re8 Nf4 Bf8 Kg6 Re5 Rb2 Nd2 Ra2 Nd7 Rb2 Rb8 a8B Na7 c8B Be7 Bcb7 Nc5 Bbe4 Bf8 Rb1 Rb7 Rbh1 Rb8 R1h2 Rb7 Bbc4 Bc2 Bb3 N3a4 Bb4 Nc6 a7 Na6 Ndf7 Bc5 Nd6 Kc7 Ba3 Rb4 Bb7 Kb6 a8B Re7 Bb2 Na7 Bc3 Qc4 Bf6 Re5 Be7 Qd4 Qe2 Kc7 Bed5 Ne1 Bh1 Kb6 Qf3 Ng2 Bbe4
kNRb2Kb/1N1nr1p1/1Nb3BP/2N3BN/8/n1b5/2qn1RQR/2RR2rR b - - 0 1 illegal: Other
5qr1/5rn1/Qq2n1RR/3p1kbB/2B2NR1/2rNBRRB/RnqP4/5KB1 b - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 g5 a4 d6 e4 g4 exf5 g3 b6 Bd7 b5 Nh6 b7 Bc6 b6 Bb5 axb5 Qc8 hxg3 Qd8 g4 Ng8 g5 Bg7 Ra4 Bh6 Ra1 Bf8 g4 Kd7 f4 c5 f6 Ke6 g6 a5 f5+ Ke5 f7 h5 g5 a4 g7 h4 f6 h3 g6 h2 Bb2+ Kf4 Nf3 e5 Bd4 a3 Qa4 a2 Be3+ Kf5 Qa6 c4 Nc3 e4 Nd5 c3 Nf4 c2 Ne5 c1N Ned3 Ne7 g8B Rh6 g7 Nbc6 b8B Rh7 b7 Qa5 b6 Nd4 Ba7 Ne6 b8R d5 b7 Rh3 Re8 Qb4 b8R Qb6 Rg1 h1Q Rg4 Qh2 Rec8 Rg3 Rc6 Qh7 Rd8 Rh3 Rdd6 Rb8 Bg1 e3 Be2 Rc8 Kf1 Qg6 Rc3 Rg3 Ra3 Rc3 Bh7 Rg2 g8B Bh6 f8R Bg5 f7 Rg3 Ra8 Rg2 Rb1 a1Q Rb2 Qb1 Rba2 Qc2 Rb8 Qd8 Rbb6 Qe8 f8R+ Qf7 Re8 Qf8 Bf7 Rg3 Bhg8 Qgh6 Bh5 Qg6 Ne5 Nd3 Rc8 Nb2 Bc4 Qgf6 Ned3 Qd4 Rbb3 Qb6 Rcc6 e2+ Ke1 Qc7 Bae3 Qb6 Kf2 e1R Bh7+ Kf6 Bf5 Re2+ Kf1 Reg2 Be4 Nf5 Bf3 Rh2 Bg2 Ng7 Bh3 Rh1 Rb4 Kf5 Rbb3 Nc7 Rh6 Rh2 Rcg6 Nce6 Bb5 Re2 Bd4 Re4 Bde3 Ra4 Bc4 Ra5 Qc8 Ra7 Qa6 Rf7 Nc1 Qb5 Bc5 Rce3 Rh4+ Rg4 Bd4 Ne8 Rg7 Qb6 Rc3 Bf6 Bc5 Re4 Rg3 Bd8 Raf3 Re3 Rg8 Rc3 Ncd3 Be7 Bce3 Bf6 Bg2 Rgg7 Rhg4 Bg5 Bh3 Rg6 Rgh8 Rgg7 Rg6 Rg8 Rh7 N8g7 Rhh6
BR5R/1q6/1qN4r/2BKB3/q2B1BpR/Pk1n1pbR/N1r1Q3/n2R1R1b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Ke3 g5 Ke4 c5 h4 b5 d4 b4 d6+ Ke6 h6 g4 h5 c4 d7 c3 h7 f6 d5+ Ke7 e6 Kd6 a3 Kc5 e7 Kc4 e8R c2 a6 b3 d6 b2 a7 Qc7 d8B Bd7 h6 Bb5 d7 Bd6 Rh4 Ba4 Nf3 Bf4 Nd4 Be3 Nc3 b1Q Na2 Qc8 Be7 Qd8 Bg2 f5+ Ke5 Bf2 e4 Qc8 d8R f4 Rd6 Na6 Qe2+ Kc5 Rf8 Bc6 Rf7 Rb8 a8R Rb2 Rb8 Nb4 Bd2 Qg1 Rf1 c1Q Rh3 Qc7 Ke6 Qa1 e5 Nc2 Rf5 Qa5 Rfh5 Qb1 R5h4 Bg3 Bf3 Nf6 Bf8 Be8 Ba8 Qa4 Bc1 Bg6 Nc6 Na1 Rd3+ Kc4 Rdd1+ Bd3 Kd6 Qga7 e6 Nh5 e7 Qb7 e8R Rc2 Ke6 Q1b2 Bc5 Q2b6 B1e3 Kb3 Kd5 Rg8 h8B Rg6 h7 Rh6 Bhd4 Be4+ Ke5 Bh1 h8B f3+ Kd5 Q6a6 Bhe5 Qab6 Rh8 Nf4+ Ke4 Nd3 Kd5 Q6c7 Bd2 Qcb6 Bdf4
1QN1n1q1/4BB2/1r1q4/pNb1p3/NBB2R2/K1N2bNn/1R2BPb1/3B2rk b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 h5 Kb4 d5 g4 a5+ Ka3 e5 c4 h4 b4 h3 c6 h2 b6 d4 b7 d3 g6+ Kf6 c7 d2 c5 Kg5 c6 Kf4 g7 Ne7 g8B Rh6 g5 Rf6 g6 Be6 c8B Ra7 c7 Ke4 g7 Nec6 Ra2 Na6 b8N Bc4 Be2 Re6 f6 Bd5 f7 Bb3 Rb2 Kf4 Nd7 Rd6 b5 Nab8 b6 Re6+ Nc5 Bc4 b7 Rd6 Qb3 Bd5 Bcg4 Nd4 c8N Bf3 Nc3 Na6 b8N Nc7 Nba6 Ne8 Qb8 Ne6 N5a4 Ng5 Nc7 Nh3 N7b5 Rb7 Bh5 Rbb6 Bd1 Be7 f8B Bg2 Bgf7 Rg6+ Nc5 Rg4 Nge2+ Kf3 g8B Qd5 Re1 h1B Rg1 Bd6 Be7 Qa8 Bc4 Qd5 Bgf7 Qa8 Bdb3 d1Q Ng3 Qd3 Bd2 Qad5 Bfg6 Qg8 Bgf7 Qdg6 Bc2 Qf6 Rgb1 Qh6 Rb4 Qhf8 N5a4 Bc5 Be1 Qh6 Rb2 Qd6 Bh4 Bf1 Bd2 Kg2 Be7 Kg1 Bd1 Bfg2 Be1 Rg7 Bhe2 Bf3 Bd2 Bhg2 Nf5 Kh1 Be1 Bf1 Bd2 Rg1 Ng3+ Kh2 Be1 B1g2 Bcd5 Bf1 Nb1 Qe6 B5b3 B1g2 Ba2 Be3 Rf4 Bc5+ Bb4 Qeg6 N1c3 Qd6 Nf5 Kh1 Bae6 Nc7 B6c4 Ne8 Ng3+
Q3Nn2/1R1pr3/rb2pNR1/b1N3q1/nNN1B1R1/4NR1R/3P1K1B/1qkq4 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 Nf6 b4 Rh6 c4 Nc6 c5 Rh8 b6 Ng8 b5 Nb8 c6 Bb7 cxb7 Rh7 Qf3 Rh6 Qd1 Rh8 f4 Kf7 h4 Kf6 h6 g5 h7 c5 h5 a5 h6 e6 Kf2 c4 Ba3 g4 Bd6 a4 Nc3 a3 Nd5+ Kf7 f6 Kg6 f7 Kf5 Rh3 Ke4 f5 c3 f6 c2 Ne3 c1B Qf3+ Kd4 Bh2 a2 Bg2 Bfa3 f8N Kd3 f7 Na6 b8N Qe8 b7 Nc7 b6 Bab2 Na6 Qb8 Nb4+ Kd4 Qc6 Ba3 Be4 Bcb2 Qa4 Qd8 b8N Nd5 b7 Bc3 N8a6 Nge7 b8R Ng6 Nc5 Nb6 Rb7 Qg5 Qc6 Rg8 h8N Rg7 Nh7 Ra6 f8R Na4 Rff3 Nf8 Nf6 Re7 h7 Bab2 Re1 a1Q Nf7 Qb1 h8R Ba3 Nd6 g3+ Ke2 g2 Kf2 Bab2 Nde8 Ba1 R8h4 Bab2 Nbd3 Ba5 Nb4 Bc3 Rg4 Bb6 Qc8 Qd1 Qa8 Qb1 Nbd3 Bb4 Rf1 B4a5 Nb4 Qd1 Rh6 Qb1 Rg6 Qd1 Rh3 Qb1 Ned5 Kc4 Nf3 g1Q+ Ke2 Qh1 Ne5+ Kd4 Rff4 Qhc1 Kf2 Qd1 Nf7 Kc4 Rff3 Kd4 Ncd3 Kc4+ Ne3+ Kb3 Nc5+ Kb2 Ne5 Kc1 N5c4
1rN2K2/2pQN1RR/6B1/pBP1B1k1/1b4r1/2rqnBBR/6R1/R2b1Rbr b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 gxf5 e5 axb5 Nc6 dxe5 g4 h4 Nd4 Bg2 Ne6 Bf1 Ng5 hxg5 Be7 Ra2 Bc5 Ra1 Bf8 Kd2 Kf7 Ke3 d5 Kd4 h5 c4 a5 f4 h4 b4 g3 e4 g2 b6 h3 f6 Kg6 f7 h2 b7 Ra6 b8R Qf6 b5 Rd6 f5+ Kh7 b6 Qe7 g6+ Kg7 c5 Re6 b7 Ra6 e6 Kf6 e5+ Kg7 Ne2 Qd7 e7 Nh6 e8B Rb6 e6 Kf6 g7 Qc6 g8R Rb3 e7 Qb6 Nec3 Qd6 Bc6 Qd8 e8B Ng4 Ne4+ Ke7 f6+ Ke6 Nd6 Ra3 Bb2 Rah3 Bfb5 Ra3 Rg7 Qd7 Nc3 Be7 f8R Nf2 Bg6 g1B f7 Kf6 Qg4 Qd8 Qd7 Kg5 Ke5 d4 Ke6 d3 Bf3 d2 Nd5 d1R Be5 Bf6 Ne7 Rad3 Ra8 Rc3 b8R Bb7 Ndc8 Ng4 Rfg8 Rd5 f8B Ne3 Kf7 Rd4 Rh7 Rb4 Rgg7 Rg4 Bg3 Ba6 Rb6 Be5 Rf6 Bb7 Rf4 Be4 Ra6 Bc2 Rd6 Bd1 Rd2 Rg8 Rg2 Bd4 Nf5 Bf6 Bd6 Re8 Be5 Rg8 Qe8 Qd3 Qd7 Rh8 Nfe7 Rg8 Na7 Rb8 Rh3 Bf2 Rf1 h1R Nac8 Bg1 Kf8 Rb3 Bd6 Bc3 Be5 Bb4 Rff7 Ra3 Rgh7 Rc3 Rfg7
2RB2qN/1pR1R1rp/7R/N7/5rk1/NPnBr2q/2bN1Qn1/NR1rR1K1 b - - 0 1 illegal: No proof kernel
1N1b3R/6Nn/2r1QnNB/Bp4N1/rN1B4/5brp/BPB3B1/kn3RnK b - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 exf5 g5 hxg5 d4 a5 d3 cxd3 Kd7 d4 Ke8 d5 Qd6 Rh2 Qc6 Rh1 Qb6 axb6 Bg7 Qa4 Bh6 Qd1 Bf8 f4 Kd7 Kf2 Kd6 g4 Kc5 Kg2 Kb4 d4 c5 g6 a5 g7 h5 d6 e5 b7 c4 f6 e4 f7 c3 f5 h4 d7 c2 d8B Kb3 f6 a4 g5 a3 g6 a2 d5 e3 d6 e2 d7 e1R Nf3 Ba3 f8B Ra5 f7 Re3 Nc3 Nh6 g8B Be7 g7 Rh7 Ng5 Ng4 Qe2 Nf6 Nd5 Rh6 Bh7 Ra4 Ba5 Bd8 g8B Rg3+ Kh2 Rg6 Be3 c1N Bd4 h3 Bg2 Rh6 Qe6 Ne2 Rhf1 Ng1 Kh1 Rg6 Rac1 a1N Bh6 Ka2 f8N Nb3 Rc4 Nd2 Nb4+ Kb3 Bf7 Nb1 Bfg8 Bb6 d8N Nbd7 b8N Bb7 Rc8+ Bd5 Nd3 Ka2 Nb4+ Ka1 Bf7 Bf3 Bfg8 Rg7 Bc2 Nh7 Ng6 Re7 Qe1 Ndf6 Nde6 Rb7 Ng7 Rc7 Ba2 Rc6 Rh8 Bd8 Qe6
B2K3R/1P3N2/rpb1B1p1/2B1qrp1/1bk2r2/2B1n3/1nQ3NN/B1RB1NN1 b - - 0 1 illegal: Other
RKNq1N1r/1p1p3p/N1p2N1B/1br2Rp1/R4RPn/1Nn5/R2Q2B1/2Nk4 b - - 0 1 illegal: No proof kernel forced: wxLB
3K1nB1/1B4rn/Rn3Qr1/q4N2/8/RN2PQ1q/Q2BqQ2/bRNR2k1 b - - 0 1 illegal: No possible last move
br1rR1Qq/2nrkr2/1Q5R/4n1R1/2Q3qN/2R3BP/2Q5/B2NNBK1 b - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 a4 a5 axb5 d5 bxa5 f4 c4 f3 cxd5 e6 b6 Bd6 b7 Rh6 exf3 Rh7 f4 Bc5 f5 Bb6 axb6 Rh8 h3 c5 d4 g5 f4 g4 Kf2 c4 f6 c3 f7+ Kf8 d6 c2 h6 e5 d5 e4 d7 Ra7 f5 Qe7 d8Q+ Qe8 d6 Nd7 b8B Rb7 h7 Ra7 b7 Ra5 Ra3 Ngf6 Nc3 Nc5 d7 Ra6 Nf3 Rg8 h8R Nd5 Qb6 Qe5 Rh6 Ra8 d8Q+ Qe8 Bcf4 c1R Bbe5 Nd7 Qdc7 g3+ Kg2 e3 b8Q e2 Rg1 Rc2 Qc4 Rd2 Qc2 Nc7 Nd1 Ke7 f8N Bb7 Ba1 Ne5 Rc3 Rd7 Kh1 g2+ Kh2 Qc8 f6+ Ke8 f7+ Ke7 Be3 Rh8 Bf2 Qe8 Qc8 Rb8 Be1 Ba8 Bf2 Rd3 Q8g4 Rd7 Ng6+ Kd8 Ngh4 Ke7 Qg3 Qg8 Qgg6 Qh7 Qg7 Rhd8 Qg8 Qg7 f8R Qh8 Rh1 g1R Be1 Rg3 Rg1 Rg7 Rg5 Rh7 Bf2 Rf7 Kg1 e1Q Bg3 Qe4 Ne1 Qg4 Re8+
BBb1B3/nQ4k1/6N1/1NN2Rrq/2p2R1R/1n1P3B/3NQ3/qn1bK2Q b - - 0 1 legal: proof: b4 a5 h4 b5 a4 f5 axb5 g5 hxg5 d5 e4 d4 exf5 d3 c4 Qd4 b6 Bg7 b5 Bf6 b7 Qd6 Bxd3 Ra6 Bf1 Rc6 b6 Rc5 Nh3 Rd5 cxd5 Bb2 Ng1 Ba3 Nxa3 Qd7 Nb1 Qd8 f4 Kf8 g4 h5 g6 e5 d6 c5 d7 h4 g5 e4 d3 c4 f6 h3 f7 h2 g7+ Ke7 f8R e3 g6 e2 f5 a4 f6+ Ke6 f7 Kf6 Na3 Na6 b8Q Qe7 d8Q Rh4 b7 Rd4 Bf4 Nh6 g8B Rd7 g7 Nb4 Qe8 Qe6 Bh3 Qd5 Nb5 a3 Nf3 a2 Nd2 Qe5 Bh7 Rd5 g8B Nc6 Be4 Ng4 Qc7 Rc5 b8N Qh5 Nd7+ Kg7 Qb7 Ne3 Bb8 Rg5 Nc5 Na7 Bgh7 Nd5 Bhg6 Nc3 Rf1 h1B Rf5 Nc6 Rh8 Na7 f8N+ Bd7 Qe6 Bf3 Be8 Nb1 Ng6 Bg4 Bc6 Bf3 Qd5 Bg4 Qh1 Bf3 Qb6 Bc8 Ba8 Bg4 Kf2 e1N Qe2 Nc2 Kf1 Nd4 Ke1 Nb3 Qbb7+ Bd7 Qe3 Bd1 Qe2 Nc3 Rb1 a1Q Rb2 Nb1 Ra2 Qf3 Rh4 Qh5 Ra6 Rg3 Raf6 Rg5 Qb6 Be6 Rff4 Bd7 R6f5 Bc8 Qbb7+
n1N1Q2Q/1RppPR2/q3Q2R/1kB1N3/b4bn1/1r2r3/2B5/RB3NKQ b - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 h5 g4 e5 gxh5 b4 a4 b3 f4 b2 fxe5 Qf6 Na3 Qb6 axb6 b1Q a5 Qf5 Nb1 Qf6 d4 Ke7 e4 Qg5 d5 Qf5 b7 Ra6 e6 Kd6 e7 Kc5 e5 Qe6 dxe6 Rd6 Bd3 Rb6 Bf1 Rb5 cxb5 Rh6 Nd2 Rh7 Nb1 Rh8 Kf2 g5 e8Q f5 h4 f4 e7 g4 h6 f3 a6 Bg7 b6 Rh7 a7 Bf8 a8N Nc6 b8Q Nd4 e6 Rf7 b7 Rh7 h5 Nc6 Bd3 Rf7 h7 Nd8 h8R Kc6 h6 Nf6 h7 Rg7 Rh6 Nd5 Nd2 Nf7 Nf1 Nb6 Bc2 Ne5 Be3 Kb5 Bc5 Rg8 Rf6 Bh6 Rf7 Bf4 Qa7 Rg6 b8R Bb7 Qa2 Bc6 Rb7 Rh6 Qe1 Rh3 Qd5 Nc4 Qh5 Ne3 Bb1 Rg3 Qh1 Rh3 Ne2 g3+ Kg1 g2 Nc1 Ng4 Nd3 Bd5 Ne5 Bb3 Qf8 Ba4 e8B Rh6 e7 Re6 Nd3 Re3 Ne5 Rb3 Qe4 Re3 Qd5 Rb3 Qe6 Nh6 Nh2 Ra3 Rf6 Rb3 Beg6 Ka6 Kf2 g1R Bgc2 Rg3 Rf7 Ng4+ Kf1 f2 Qe8 Rge3 Kg2 Ka5 Kf1 Nd5 Nb6 Ka6 Nc8+ Nb6 Rg8 Ka5 h8Q Na8 Rgg7 Nh6 Rg6 Ng4 Bd6 Ka6 Rh6 Ka5 Kg2 Ka6 Bc5+ Ka5 Qg1 f1Q+ Kh1 Qb5 Nf1 Qa6 Kg2 Rf3 Qh1 Rfe3 Nb6 Kb5 Kg1 Qa7 Nc8+ Qb6 Ra7 Qa6 Rb7+
3Q1Nq1/B1rQ1p1B/1Q3n2/BK1R3R/5Qp1/q4N1R/B1rP3b/1k2q2N b - - 0 1 legal: proof: b4 d5 a4 b5 axb5 h5 f4 e5 fxe5 h4 c4 h3 cxd5 Rh5 b6 Nd7 gxh3 Ke7 b5 Ke8 h4 Ba6 Rxa6 Rh8 h5 Nc5 Ra1 Na4 Rxa4 Nh6 Ra1 Ng8 h4 Kd7 e4 a5 Ke2 c5 Kd3 g5 Kc4 a4 b7 a3 b8B g4 e6+ Ke7 d6+ Kf6 b6 Ke5 d7+ Bd6 b7 a2 e7 Kf4 e8Q Qb6 d8Q Ne7 e5 Ke4 h6 Qc6 h7 Qc7 h5 Ng8 e6 Bh2 e7 Ra6 h6 Rf6 Qf3+ Ke5 Nc3 Rd6 Kb5 Kd4 Bd3 c4 Ba3 Bg3 Qed7 Be5 e8B Bg3 Nd1 c3 Ba7+ Ke5 b8Q c2 Rh3 c1Q Nf2 Qf1 Nh1 Re6 Qb6 Qfc1 Bb4 Rc6 Ba5 Bh2 Bg6 Qd6 Qf4+ Kd5 Nf3 Qe1 Rb1 a1Q Rb3 Qd4 Rd3 Nf6 Bf5 Rf8 h8N Rc2 h7 Rc7 Ng6 Rg8 Ka6 Kc4 h8R Qa3 Nf8 Rg5 Bg6 Rgc5 R8h5 R5c6 Be4 Qe5 Rd6 Qg5 Rd5 Qg8 Bh7+ Ne4 Qe6 Rc5 Bb5+ Kb3 Qed6 Kb2 Q6d7 Rc2 Bc4+ Kc1 Kb5 Nf6 Bb3 Kb1 Ba2+
5n1n/Q2N2r1/1B2qR1r/2KNqp1k/B2P2NR/2N1q1p1/BQ1Q3R/2B5 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 d4 g5 d3 cxd3 Kf7 d4 Ke7 d5 Ke8 h3 Bd7 Ra2 Be7 Na3 Bf6 gxf6 g5 Nf3 g4 Ng1 g3 Nb1 Be6 Ra1 Bf7 Qc2 Bh5 Qd1 Bg4 hxg4 Qd6 Rh3 Qe7 Rh1 Qd8 b4 Kf7 e4 Kg6 Ke2 c5 Ke3 a5 g5 h5 b6 c4 Kd4 h4 d6 a4 b7 h3 b5 h2 d7 a3 b6 c3 f7 c2 f8N+ Kg7 g6 Kh6 g7 a2 e6 Qe7 d8B Nf6 g8N+ Kg5 e5 Qc7 e7 Nh7 e8B+ Nf6 e6 Qe7 Nd7 Ng4 Nh3+ Kh4 Nc3 Ra5 Ngf6 Qh7 e7 Re5 Nf4 Rc5 N4d5 Kg5 Bc4 Nf2 Ng4 Ne4 d3+ Kh4 Qd2 Rc7 Rb1 a1Q Ba2 Qg6 Rb2 Rc5 Bc7 Nd6 Bd8 Rb5 Bc7 Rb3 Kc5 Nf7 d4 Rh6 Bd8 Qe6 Bc7 Kh5 Bd8 Nc6 b8Q Ne5 b7 Ng6 Qa7 Nfh8 b8Q Rb7 Rb6 Qe5 Rf6 Qb1 Bb6 Qb3 Re1 h1Q Re2 Qh4 Rh2 Qb2 Qa3 Qb3 Qba7 Qe3 Qb2 Qe5 Nb8 Rd7 Rh3 Rb7 Ba4 Nf8 e8R Rg7 Ree6 Qf4 Re2 Qe5 Nd1 Qbe3 Nd7 Qe6 Reh2 Q3e5 Qb5 Nhg6 Nc3 Nh8 Bb2 c1Q Ba3 Qb1 Bc1 Qbe4 Qbb2 Qe3 Rxh4+
q1b5/B4R1B/nK1QN3/B2N2qb/kQ1rQ2P/2n2Qqr/2N4B/4Rn1R b - - 0 1 legal: proof: c4 b5 h4 h5 e4 g5 a4 d5 cxd5 f5 axb5 Na6 exf5 Nb8 g3 Bg7 hxg5 h4 g6 h3 Bg2 Bf6 Bf1 Bh4 gxh4 Bd7 Ra6 Be6 Ra1 Bc8 Ke2 Kd7 Kd3 c5 Kc4 a5 f4 e5 b4 a4 d4 a3 d6 a2 g7 e4 d5 h2 b6 e3 Kb5 c4 f6 c3 b7 c2 f5 e2 f7 e1Q f8N+ Ke8 f6 Qc7 f7+ Kd8 d7 Qc4+ Kb6 Ra3 b5 Ke7 d8B+ Kd6 Ne2 Rb3 Ne6 Re3 f8R Qe4 Nec3 Nh6 g8Q Rh7 Qg6 Qf5 Qf3 Qg4 Rf7 Qg5 Qge4 Nf5 Na3 Na6 Bd3 Qeg3 Bb2 c1N Nc2 Ne2 Rae1 a1Q b8Q+ Nc7 Bc1 Qa8 Bd2 Rh8 Bf6 Rd8 Bd4 Q3f4 Qb7 Nfg3 Qb8 Nf1 Qb7 Qe7 Be5+ Kd7 d6 Qg3 Nd5 Nc3 Qb8 Na6 Bf4 Nb1 Ba5 Nc3 Qb7+ Ke8 Qb4 Qeg5 Bh7 Rd3 Qc6+ Rd7 Qcc4 Rd8 Qce4 Rd4 Rg1 h1B Be3 Bg2 Rh1 Bh3 Bg1 Bg4 Bh2 Bh5 Rf5 Kd7 Rf4 Bb7 Rf7+ Kc8 d7+ Kb8 Ndc7 Bc8 Nd5 Rg8 d8Q Rg6 Qde7 Rf6 Qf2 Rf3 Qed6+ Nc7 Qd2 Qf2 Be5 Rh3 Qd1 Qfe3 Bh2 Qeg3 Kc5 Kb7 b6 Ka6 b7+ Ka7 Qdf3 Na6+ Kc6 Nc5 Qa3 Ka6 Kc7+ Kb5 b8B Q3e5 Ba7 Qeg3 Qb2+ Ka4 Kb6 Na6 Qbb4+
Rq2rR2/1Qn1b3/2n1B3/BQRr1q2/K4kP1/BN2BN2/2Q4N/rQ2bn2 b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 b4 Kd7 d4 Kd6 Kd2 a5 Kc2 h5 Kb3 c5 b7 e5 b5 h4 g7 c4+ Ka4 c3 f6 e4 g6 e3 f7 e2 b6 e1N Qc2 h3 Be3 h2 Nf3 Rh4 Bc4 Rh7 Nbd2 Ra6 Nf1 Nh6 g8Q Ra8 g7 Na6 b8Q+ Nc7 b7 Be7 f8B Nd3 Qf7 Nb4 g8R Nf5 Ra2 Kd7 d6 Rh5 d5 Nc6 Rg1 h1R N1h2 Ng3 Rc1 Nf1 Qfg6 Rg5 Qb1 Qe8 Qgc2 Qh5 Qa7 Re8 b8Q Re5 Q8b5 Qf5 Qab7 Rg1 Qe4 c2 Rh8 Bh4 Be7 Be1 Rf8 Rh1 Rd1 c1Q Qec2 Qb2 Rd3 Qd4 Rc3 Qa7 Bb3 Qb8 Rc5 Rg1 Bf6 R5e6 Bb2 Re4+ Bc4 Rd4 Ba3 Rd1 Q1b4 Ra1 Qbb1 Rg2 Bb3 Rd2 Bc4 Kd8 d7 Ke7 d8N Kd6 Ne6 Rd3 Nfg5 Ke5 d6+ Rd5 d7 Bd2 Nd4 Be1 Bg1 Kf4 d8B Ne7 Ngf3 Nc6 Kb3 a4+ Kb2 Rd7 Be6 Rd5 Nb3 Bh4 Bb4 a3+ Kc3 Be7 Ba5 Na7 Kb4 Nc6+ Ka4 Ne3 Rb2 a2 Bb4 Nf1 Ba3 Na6 Ba5 Nc7 Qe1 Rc1 Qed1 a1B Ra2 Bc3 Qdd3 Ra1 Be3+ Kg3 Qdd1 Be1 Qdb1 Na6 B3b4 Qa7 Bb6 Ne5 Ka5 Qb8 Ra4 Rd2 Ba3 Nc7 Kb4 Rd3+ Qd2 Rdd8 Ra8 Nc6+ Ka4 Rd7 Qdc2 Rd5 Bf2+ Kf4 Ba5 Rdd8 Bd4 Rd5 Be3+
5QKN/q3R1N1/1kn5/3Q1BB1/1q3bP1/1nBR3B/rRb1N1r1/Q1R1r1b1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kd7 Kd3 h5 Kc4 e5 d4 c5 g4 Kc7 f4 e4 a6 h4 d6+ Kb6 Kd5 c4 f6 e3 f7 h3 a7 h2 f5 e2 g6 e1R d7 c3 f6 c2 g7 Qe7 d8N Rh3 Nf3 Rh8 Nh4 Kc7 b6+ Kd7 b7 Kc7 Bh3 Rh7 Bg5 c1B Nf5 Rg1 Nc3 Rh8 Ne2 Bf4 Rc1+ Nc6 b8R Bg3 Rb2 Nh6 g8Q Rb8 a8B Rh7 Ng7 Rg2 Re1 h1Q Qa4 Qg1 Qa1 Bf5 Bb7 Qee3 Bc8 Bg6 Bf5 Ba3 f8B Qe7 f7 Qc5+ Ke6 Qb4 d5 Ra8 d6+ Kb6 d7 Bf4 Bfe7 Qc5 f8Q Qa5 Bd6 Qa7 Nf7 Rh8 d8R Bh7 Be4 Nf5 Be5 Nfd4+ Kf6 Bg6 Bf5 Nb3 Bc3 Rh7 Nh8 Rh5 Bc8 Bc2 Bf5 Rh4 Rd7 Rh6+ Kf7 Re6 Red1 Re5 Rd3 Re3 Ng1 Re5 Re7 Re1 Ra2 Bb2 Ne2 Ba3 Rb1 Bac1 Rab2 Bce3 Rc1 Bg1 Qh7 Qd7 Kg8 Ra2 Qh5 Qb7 Qhf7 Qa7 Qd5
rR1BNQRn/3r3R/BbqNR1B1/3nN1NP/3k1q2/5b2/1Q1r3Q/3bK3 b - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 d5 cxd5 f5 e4 h5 exf5 h4 a4 Rh6 axb5 Rh8 g4 Qd6 Ra6 Qg6 Ra1 Qh5 gxh5 Kd7 Nh3 Kd8 Ng1 Ke8 f4 Kd7 b4 Kd6 d4 c5 b6 a5 f6 e5 f5 e4 b7 a4 f7 c4 f6 e3 b5 c3 g6 a3 b6 h3 g7 h2 Qd2 e2 Qb2 a2 Nh3 c2 Nc3 Rh7 Ng5 Be6 Nce4+ Kd7 d6 Kc6 d7 Kd5 d8N Ne7 g8B Nbc6 b8R Bd7 b7 Bg4 Nde6 Bh6 f8R Ra4 f7 Na7 Nd6 Ng6 Ng7 Nb5 Nge8 Ra8 Bd2 Rg7 Bh7 Nh8 Bg6 Nc7 Rg8 Rh7 f8Q Rd7 Rg1 h1B Ba5 Bhf3 Rb1 a1Q Rg7 Rf7 Rh7 Qa4 Rd1 c1Q Rg2 Nb5 Bd8 Qf4 Rc1 Rd7 Rc6 Nc3 Rb6 Qa7 Ra6 Qb6 Rg1 Kc6 d5+ Kc5 Ndf7+ Kd4 Ne4 Qbd6 Bf5 Qc7 d6 Qg5 Bf6+ Kc4 Rc8 Bh1 b8Q Bh3 Kf2 Rd8 d7 Bg4 Re6 Qc6 Qh2 Qc1 Rb8 Be3+ Kg3 Kd5 Ne5 e1R Ba6 Rd1 N4d6 Bb6 Bfd3 Kd4 Kf2 Qc7 Be4 Qc6 Bf5 Be2 Rg8 Bhf3 Bfd3 Rd2 Be7 Bd1+ Ke1 Rg2 Bg6 Qf4 Bf6 Rd2 Bh4 Rc8 d8N Rc7 N8f7 Rca7 Bd8 Rd7 Qc2 Nd5 Ng5 Bde2 Qa2 Bd1 Qb2+
6QK/br1rN3/1nBRb3/3B1kB1/1q3P2/2NbQr1R/2Q2Rr1/3n1QBN b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 Kf7 Kd3 c5 Ke4 h5 Ke5 e6 g4 c4 d4 h4 a6 c3 f6 Kg6 f7 h3 a7 h2 d6 c2 d5 Nf6 b6 Nh7 d7 Ba3 f8Q Bc5 b7 Rg8 d6 Ba3 Ra2 Nf6 Bg2 Ne8 Nc3 Qa5+ Bd5 Na6 d8Q Nac7 b8B Rh8 d7 Rh7 Qde7 Nf6 d8R Ne4 Rd6 Bc5 Nge2 Qb4 Ng3 Be3 Bd2 c1R Qc2 Rb1 f3 Bb6 Be3 Ba6 Bg1 Bd3 Qf4 Rf7 Qe3 Nf2 Qf8 Rd7 Bc6 Kh7 Kf6 e5 Rb2 e4 Qf7+ Kh8 g6 Nd1 g7+ Kh7 g5 Bc5 Qc4 Bb6 g8N Nd5+ Kf5 Bd4 Ne7 Nb6 g6+ Kg7 Bc7 Rg8 a8B Bc5 f4 Bd4 Qef2 e3+ Kg5 e2 Bd8 e1R Qe3 Rf1 Qa6 Kh8 g7+ Kh7 Qb5 Bc5 Kf6 Rf2 Bd5 Rf3 Bac6 Kh6 Nge4 Kh5 Ng3+ Kg4 Qa6 Ra1 Qb5 Raa7 Ra2 Rab7 Kf7 Bf5 Qf1 Be6+ Kf6 Nc8 Kg6 Ba7 Kh6 Nb6 Kh7 Rf8 Rb2 Rf6 g8Q+ Rg6 Kh8 Rg5 Nc8 Rgg7 Bg5 Rg6 Bf2 Rgg7 Ne7 Rg6 Rg1 h1B Rg2 Rg7 Rh2 Bg2 Bg1 Bh3 Qb5 Bf1 Nh1 Bd3 Rh3 Rg6 Qba4 Rg7 Qce2 Rg6 Qf1 Rg7 Rf2 Rg6 Nc8 Kf5 Qc2 Rgg7 Bh6 Rgg3 Bg5 Rg2 Ne7+
K4k2/bR2Q1N1/3B2R1/2r2n1N/1RQn1q2/B2PNqbQ/r1B1p2Q/6bB b - - 0 1 illegal: No possible last move, all moves rejected
2b5/4k3/RQBq1Rp1/KR3NN1/nBrb1P2/1Nq3nr/1R5B/r1NQ1Q2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 d4 e5 Kd2 c5 Kc3 g6 h4 c4 a6 e4 a7 e3 f6 e2 h6 e1R h5 Kf7 d6 Re7 Kb4 c3 h7 c2 h6 Be6 b6 Qd7 d5 Bf5 b7 Qe6 d7 Qe4+ Ka5 Qe2 d8R Qh5 d6 Qe2 d7 Qe4 Rh2 Qd5+ Bb5 Re3 Ba3 c1Q Bb4 Bg4 Nd2 Re1 Ne2 Qb3 Bc6 Bf5 Rb1 Bc5 Rf8+ Ke6 d8Q Be3 f7 Qcc2 Qb6 Qe4 Nc1 Qbc4 Ndb3 Nd7 b8B Rh1 f3 Bh3 Rhb2 Kf6 Bh2 Rc8 a8R Nc5 Ra6 Ke7 f4 Nf6 Qf1 Rg8 h8N Bd4 h7 Qed3 Be8 Qd2 Bd7 Rg1 Be8 Rg3 Ra8 Qde2 Bc6 Re8 Ra7+ Bd7 Ra8 Qee6 Ra7 Re3 Ra8 Re1 Ra6 Nd5 Na2 Qc3 Re2 Bc8 Nd2 Qd3 Ba3 Bg1 Rb5 Kf6 Bb4 Qc3 Nb3 Ne3 Rb2 Rd1 Qb8 Rb1 Nac1 Rd8 Qd6 Nf5 Qdd1 Rd6 Re8 Rd4 f8N Qd7 Ne6 Ng3 Nf7 Rc4 Rf8 Rh8 Ng7 Bd4 Nf5 Na4 Ng5+ Qf7 Rd8 Qe6 Rd6 Ra1 Bd5 Rg8 h8Q+ Rg7 Qg8 Rh7 Rdb6 Rh3 Bf3 Bd7 Qb8 Bc8 Rc6 Ra3 Qb6 Ra1 Nd6 Ke7 Nf5+ Kd7 Bg2 Qe7 Rf6 Qd6 Nh4 Ke8 Bc6+ Ke7 Nf5+
1Q1nR2q/QB5N/bRpRP1R1/nB6/rNQ5/Q1N1q1BK/1rr5/4b1k1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Na6 cxd3 Bc5 d4 Bf8 d5 Nb8 Kf2 Kd7 Kg2 g5 e4 f5 d4 f4 h4 f3+ Kh3 f2 a6 Rh7 b6 Ke7+ e6 Kd6 b7 Qe8 a7 Rh8 e5+ Ke7 d6+ Kd8 h6 Qb5 d5 Bg7 h5 Qb3+ Nf3 Qa3 d7 Ke7 d8R Na6 b8Q Nf6 h7 Qc3 h6 Qb2 Qdb3 Nc5 Bf4 Ng8 Qc4 Nb7 Ra6 Na5 Rb6 Ba6 Rg1 Qa1 Be2 f1R Nc3 Rb1 Bg3 Rb2 Rdd6 Rc2 Qb7 Rb8 a8B g4+ Kg2 Bf6 Qa7 Bh4 Bb7 Ra8 Ng5 Qb2 Bh2 g3 Kh3 g2 Bd3 Be1 Bg3 Nf6 Be2 Rhb8 h8Q Ne8 h7 Ng7 Qg8 Qa1 h8Q Qb2 Nh7 Qa1 Rf1 g1Q Rf6 Qe3 Rg6 Qb2 Qc5 Qa1 Qa3 c6 Bf1 Rf8 Bb5 Rff2 Qgb8 Rb2 Qhg8 Rfc2 Rh6 Nh5 Qg4 Ng7 Rg6 Nf5 Qgb4 Nh6 Qc4 Nf7 Nf6 Nd8 Nh7 Ke8 e7 Kf7 e8N Ke7 Nc7 Kf7 Rge6 Kg7 Re8 Kf7 e6+ Kg6 Rg8+ Kf5 Re8 Qd1 Rg8 Qdd4 Rg6 Qg7 Rd7 Qh8 d6 Qf4 N7d5 Ke5 Qe2+ Kd4 Nb4 Qf3 Qf1 Ke3 Qc4 Qe2 Re7 Kf3 d7 Qe3 Bc7 Kf2+ Bg3+ Kg1 Re8 Qhe5 Nbd5 Qf6 Nb4 Qh8 Nba2 Nf7 d8R Nb3 Ba4 Bb5 Rd6 Nd8 Qa6 Ra7 Nb4 Ra8 Bc8 Ra7 Qab7 Ra5 Qg7 Ba6 Bb5 Ra4 Qga7 Na5 Bb7
4BN2/Bk3Qb1/1r1R3n/PQ1pR1N1/1n3Q1r/1KR3b1/3QNbq1/NB4b1 b - - 0 1 legal: proof: c4 b5 cxb5 a5 b4 h5 bxa5 f5 e4 c5 exf5 c4 g4 c3 gxh5 Bb7 d3 Bg2 Nh3 Bd5 Ng1 Bc4 dxc4 Rh6 Qc2 Rh7 Qd1 Rh8 f4 d5 a4 Kd7 h4 Kc8 c5 e5 a6 g5 f6 e4 a5 e3 a7 c2 h6 e2 Kd2 g4 Kc3 e1B+ Qd2 g3 f7 g2 h7 Qf6+ Kb3 Bg3 h5 Nh6 c6 Bb4 f8Q+ Qd8 c7 Nf5 h6 Bf2 b6 Ba3 b7+ Kd7 c8R Bg3 Rc3 Nc6 b8Q Bc5 Ne2 g1B Qb5 Kc7 Na3 B1h2 Qf7+ Nfe7 f5 Be1 f6 Re8 h8Q Beg3 h7 Bb6 Qhf8 Bc5 h8N Rb8 a8B Nb4 Bc6 Bhg1 Rh6 Ba7 Bh3 Bac5 Bf5 Ba7 Bb2 c1B Bb1 Nd3 Nc2 Baf2 Ra2 Rb7 Na1 Rb6 Ra4 Qd6 Re4 Nb4 Re5 Qd8 Bd7+ Kb7 Rg6 Qa8 Ba3 Rd8 Be8 Bb2 Qfh6 Qc8 Qhf4 Qh3 Rh6 Qg2 Rg6 Nc6 Bd6 Nb4 Bb8 Rc8 Ba7 Rb8 Qg7 Rd8 f7 Nf5 Rd6 Nh6 f8N+ Rd7 Qg8 Rh7 Nf7 Rh8 Ng5 Rh7 Rcc6 Bbd4 Rc3 Rh8 Ree6 Bg7 Qgf7+ Ka8 Nh3 Nf5 Qfc4 Rh4 Ng5 Nh6 Qcd4 Rb7 Q4f4 Rb6 Q7f6 Kb7 Re5 B1h2 Q6f5 Bhg1 Qf7+
K1Q4N/1N1q2q1/b3Q3/nNP2pBq/Br2R3/5B1R/R1BrQ1R1/5nkn b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Bd6 c5 Bc7 Bf4 Qe7 Bc1 Ba5 bxa5 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 g5 h4 g4 c4 f6 h6 d6 h5 g3 a6 a3 a7 a2 b6 g2 c6 Nd7 c7 Rh7 b7 Ne7 b8Q Ng6 c5 Nb6 Na3 Nc4 Nf3 g1Q Bg5 Rh8 h7 Ba6 c8Q+ Qd7 h6 Nh4 Nd2 Re8 h8R Bb5 h7 Nf5 Rh2 Ng7 Nb3 Nh5 Rg2 Re7 Qb6 Qf2 Na5 Ba6 Nb5 Rb8 Nb7 Na5 a8B Qf3+ Kd4 Kf5 e6 Rf7 e7 d5 e8B Ng3 e4+ Kg4 e5 Kh3 e6 f5 e7 Qh5 Qe6 Nh1 Bd3 Rf6 Ke5 d4 Bc2 d3 Qf1 d2 Qe2 Qc7+ Kd5 d1N Bd7 Rh6 e8R Ne3+ Kd4 Nf1 Kd5 Qd8 Kd6 Qe7+ Kc7 Qg7 Kb6 Qd4 Bc6 Qd7 Ka7 Rf6 Bf3 Rf8 Re7 Rd8 Ba4 Qc7 Be4 Rd2 Bec2 Qc6 Rf8 Qd5 h8N Qd4 Rh7 Qd7 Re1 a1Q Re8 Qe5 Ra1 Qeg7 Ra2 Qhh6 Qf7 Qh4 Re4 Qh5 Qe6 Nf2 Rg3+ Kh2 Rh3+ Kg2 Rh6 Kg1 Rg6 Nh1 Na3 Nhg3 Rc4 Qf8 Bf4 Qb5 Nd6 Qf6 Bf3 Rb6 Re4 Qfb2 Ka8 Qg7 Nb7 Qbd7 Rg4 Rb1 Bg5 Rb4 Nb5 Qde8 Rh2 Qed7 Rgh4 Nh1 R4h3 Nc6 Rf2 Na5 Rg2#
N3qN2/K1B2b1b/1R3b1B/2r1pQ1R/2kPB2n/1b2b3/2rQQ1N1/N1R1Q3 b - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 d5 cxd5 b4 d4 b3 d6 Nd7 e3 Rb8 axb3 Ra8 b4 Nb8 b5 Bb7 Nh3 Ba6 Ng1 Bc8 f4 e5 f5 Qf6 d5 Qe6 fxe6 Nc6 Ke2 Bb7 Ke1 Nd4 exd4 Bc8 Ke2 c5 Kd3 h5 Kc4 a5 b4 f5 g4 a4 d7+ Ke7 d8N Kd6 g6 a3 g7 f4 e7 a2 e8N+ Ke7 b6 f3 Kb5 c4 d6+ Kd7 g5 c3 g6 h4 b7 h3 Kb6 c2 b8B h2 b5 f2 Qd2 Bb7 Nh3 Ra3 Nc7 Ra4 Na3 Ba8 Nf4 Ne7 g8Q Nf5 g7 Rh6 Nde6 Ra5 Qh7 Rg6 g8Q+ Bg7 Bg2 f1B Be4 Nh4 Ng2 Bb7 Na8 Bd5 Bc7 Bfc4 Qb8 Rf6 Qf5 Bb3 Qe1 Rf7 Bh6 c1B Nc2 Be3 Rc1 Bf6 Na1 Rf8 Qb7 Rc8 Qa6 Bdc4 Kb7 Bd3 b6 Rc5 Ka7 Bdc2 Bd3 Kc6 d7 Kd5 b7 Bb1 b8R Rc2 Rf1 h1B Nf8 Rc5 Rb5 B1c2 Be4+ Kc4 Nf4 Bf3 d8Q Bh5 Rh1 Bg6 Ng2 Bf7 Bb8 R8c6 Qda5 Rc8 Qad2 R8c6 Rb1 Rc8 Bc7 Bd3 Nc2 a1Q Rc1 Qa4 Rb6+ Qb5 Qa2 Qe8 Rh2 Be2 Rh3 Beh5 Rh2 Bhg6 Rh1 Bh7 Qb2 Nf3 Rh5 Nh4 Na1+ Bc2 Bd6 Ra5+ Ra6 Ra2 Qa5 Rc5 Bc7 Bf4 Rb6 Be3 Rb1 Ba4 Qbf2 Rc2 Qad2 Bb3 Rc1 Ng6 Q2f3 Nh4 Qfe2#
2qN3R/BR3Kb1/Nn1RP3/Q1r3r1/4nQBB/r2BpQ2/N1k4n/1nN5 b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 a4 f5 axb5 e5 h4 Be6 hxg5 Bf7 d3 Bh5 exf5 e4 Qa4 e3 Qb3 Bf3 Qd1 Be4 dxe4 Qc8 Qb3 Qd7 Qd1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 h5 f4 a5 g4 h4 b4 h3 f6 Kg6 b6 a4 e5 a3 b5 h2 f5+ Kf7 d6 a2 Kd5 c4 g6+ Ke8 Ke6 c3 b7 c2 g7 Ra5 g5 Qb6 g6 Nc6 b8N Kd8 f7 Rh7 d7 Kc7 d8N Rh8 f6 Ra6 Bd2 c1N Ne2 Ra7 Be1 Rh6 Qd2 Rh7 Bh4 Qc5 Nbc3 Kb6 Na6 Ka5 b6 Nge7 g8R Nb3 g7 Rc7 b7 Rh5 b8B Rf5 Rh8 Nc8 g8B Bg7 f8Q Rg5 f7 Nb6 Rd1 a1R Ba7 Ra3 Na2+ Ka4 Nec1 Rc8 Qc3 Nd2 Bd3 Nb1 Bgh7 Rc7 Bhf5 Rc8 Rhf1 h1N Bg4 Ng3 Rf2 Rc7 Rb2 Ne4 Qd6 Rc8 f8Q Nd4+ Kf7 Nf3 e6 Nh2 Qf4 Qc6 Qce5 Qa8 Qf3 Rc5 Qc7 Qc8 Qfd6 Nc4 Rb7 Nb6 Qdg3 Bf6 Qgf4 Bg7 Ne2 Kb3 Nec1+ Kb2 Qce5+ Rcc3 Qa5 Rcc5 Bf1 Kc2 Rd6 Rce5 Bc4 Rc5 Bd3+
3q2N1/Q5KB/2bnRR2/qQr3N1/3r3k/q3NQQ1/q1B1b1Pp/1B1R2B1 b - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 b5 a4 e5 axb5 d4 c4 d3 c5 Bd6 cxd6 Qd7 exd3 e4 d4 Qd8 d5 Nc6 d4 Ne5 fxe5 Qe7 Nd2 Qd7 Nb1 Qd8 Kd2 a5 Kc3 f5 b4 Kf7 e6+ Kg6 d7 c5 b6 h5 b7 h4 b8Q a4 d6 h3 b5 a3 e7 h2 e8B+ Kh7 d5 a2 g6+ Kg7 b6 Kf6 b7 e3 g7 Kg5 Qa7 f4 b8Q c4 Kd4 e2 Ke5 e1Q+ Be3 c3 Nh3+ Kh4 Na3 f3 Qb5 c2 Nc4 c1Q Bg6 f2 Bc2 Kg3 Qf3+ Kh4 Bfd3 f1B Ng5 Qf8 d8N Bb7 d7 Qcd1 d6 Qdd2 Ndf7 Qb1 d8Q Qdb4 d7 Nf6 g8B Nh5 Qe7 Qd1 d8R Nf6 Bgh7 Rg8 Nh6 Bc6 Re8 Rc8 Bg1 Qa5 Ne3 Be2 Ke6 Qdd2 Rf1 a1Q Qg7 Ne4 Qge5 Rg7 Ng8 Qfa3 Rd1 Nd6 Kf6 Rd8 Re6 Rc7 Bdg6 Rcc8 Kg7 Q1a2 Bb1 Nb7 Rf1 Rd4 Bgc2 Qd8 Rd1 Q2a5 Rf6 Rg4 Rdd6 Rd4 Rde6 Nd6 Qa4 Rg4 Qab5 Be4 Bf2+ Kh5 Qed4 Rc5 Rd1 Bc6 Bg1 Kh4 Qe5 Rd4 Qeg3#
R2bK2R/Q1B2RRq/7n/1k5r/4NNQN/1r1pP3/Q1Nq2B1/1b3Bbb b - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 Nc6 gxf5 g4 a4 Nd4 axb5 Ne6 Bg5 Bg7 Bc1 Ng5 hxg5 Bf8 Kd2 d5 Kd3 Kd7 Kd4 a5 b4 h5 c4 g3 g6 h4 c6+ Kc7 e6 Kb6 Ke5 g2 c7 d4 e7 a4 e8Q d3 g7 h3 f6 h2 c5+ Kb7 b6 Ka6 c6 a3 b5+ Ka5 b7 a2 b8Q Be7 f7 Bh4 f8N Bf5 c8B Rh6 c7 Bh3 b6 Bg3+ Bf4 Kb4 e3 Bd7 b7 Rh5+ Kd6 Kc4 Qf7+ Kb5 Qg4 Rc5 Ng6 Rc1 Qa7 Rb8 Nh3 g1Q Nh4 Qg2 Na3+ Kb4 Nc2+ Kb5 Be5 Qe4 Nf4 Nh6 g8R Bf2 Rg7 Qh7 Qfe6 Qdg8 Ke7 Bg1 Bg2 Rf1 Rc1 a1B Qea2 Rf2 Rf1 Be6 Bd6 Bc4 Kd7 Qd5 Ke8 Bf6 Be5 Bd8 Be6 Rf3 c8N Bb3 Bc7 Rh3 Bf5 Qd4 Rf3 Qb4 Nd6+ Kc6 Be6 Qd2 Ne4 Kb5 Bd5 Bf2 Ra1 h1B Bf1 Bg1 Nh5 Rc8 Rff7 Ra8 Nf4 Rb8 Nf2 Ba4 Bdg2 Bb3 Ne4 Ba4 Qae6 Bb3 Ra4 Ba2 Ra6 Bb1 Qa2 Nf5 Nhg6 Rh6 Nh4 Rh5 Rh6 Qg6 Rhh7 Nh6 Rh8 Qh7 Bb6 Rc8 b8R Rc3 Ra8 Rb3 Bc7
k5b1/1R3NB1/2q3QP/2Rp4/1NQ2Q1K/Bn4NQ/3rq1R1/b1rBBbb1 b - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 h5 e4 c5 dxc5 f5 exf5 Nc6 a4 Ne5 axb5 Ng6 g4 h4 Nc3 Nf4 Nb1 Nh5 gxh5 Bg7 Nc3 Bh6 Nb1 Bf8 c4 a5 f4 d5 Kf2 Kd7 b4 Kc7 h6 Kb7 c6+ Ka7 c7 e5 g6 e4 c5 a4 b6+ Kb7 f6 h3 Kg3 a3 g7 h2 f5 a2 f7 e3 b5 e2 f6 Bg4 c8N Be6 c6+ Kb8 b7 Bd6+ Kh4 Ba3 f8Q Qe7 Nc3 Qb4+ Qd4 Qb2 f7 Bb4 Nd6+ Bc8 Qc4 Ba5 c7+ Ka7 b8R Qb4 Ba3 Qb2 Rc1 a1Q Na2 Be6 c8Q Ne7 g8Q Nc6 Nb4 Nd4 Qg6 Bb6 Bh3 Rg8 Bg4 Nb3 Rc2 e1B+ Rf2 Na5 Ne2 Qac1 Ng3 Nb3 Bd1 Bc3 Rg2 Bg1 Rb6 Rb8 Rb7+ Ka8 b6 Qe2 Qd7 Ba1 Qdc8 Be3 Rf1 h1B Rf3 Bg1 Rc3 Bg4 Qcf5 Qcc2 Qff4 Rh8 Qfc8 Be6 f8B Bg8 Nf7 Rh7 Qcg4 Rg7 Qh3 Rc8 Qh7 Rg5 Bg7 Qg6 Rc1 Qc6 Qg6 Rc7 Qce4 Re5 Rc5 Ree7 Qd3 Re3 Qde4 Rd3 Qc4 Rc8 Rd7 Rd2 b7+ Ka7 b8B+ Ka8 Rb7 Rc7 Rf2 Bg2 Ba7 Bf1 Rg2 Re7 Bb8 Re3 Bbe5 Rc3 Bd4 Rcc2 Bf2 Rc1 Be1
2n1rQ2/2R4k/2BRPb2/qp2b1n1/N1N1R3/q1NR1Q2/QBB1N2b/2b2K2 b - - 0 1 legal: proof: g4 d5 c4 Kd7 cxd5 a5 d6 h5 gxh5 a4 d4 a3 e4 Kc6 d7 Nf6 d5+ Kc5 bxa3 Ng8 a4 Kd6 a5 Rh7 Qg4 Rh6 Qd1 Rh8 f3 Ke5 Bd3 b5 Be2 Kf6 Bf1 e5 d6 Bb7 Bc4 Bd5 exd5 e4 Bf1 e3 Qc2 Ra6 Qd1 Rc6 Qb3 Rc4 Qd1 Re4 fxe4 Qe8 Ba3 Qe7 Bc1 Qd8 a4 c5 h4 g5 e5+ Kg7 h6+ Kg6 h5+ Kh7 e6 f5 a6 c4 a5 f4 a7 c3 a8B c2 a6 g4 a7 f3 Rh4 e2 Nc3 g3 Bc6 g2 a8Q Be7 Ra7 Qf8 d8N Nd7 Rc7 Qf5 Bb2 c1B Nb7 Qg4 Qa2 Nf8 d7 Ng6 d8R Qh3 d6 Nf8 d7 Qf5 Re4 Qg6 Nc5 Qf6 N5a4 Bb4 Kf2 Ne7 Qdd5 Kg8 h7+ Kg7 Ke1 Nc8 h6+ Kg6 Qd3 Be7 Qdd5 Rg8 h8N+ Kh7 Ng6 Bd6 Kf2 Qe7 Ne5 Rh8 Nc4 Be5 Qd3 Qa3 Qe3 Kg6 Qf4 Nh7 Qg4+ Ng5 h7 Rf8 h8Q Re8 Qf8 Bf6 Nh3 Kh7 Nf4 e1B+ Kg1 Re7 Bd3 Re8 Nfe2 Bg3 Bc2 Bge5 Kf2 g1B+ Kf1 f2 Qf3 Nb6 Rdc8 Bgh2 d8R+ Kg6 Bd7 Kh7 Ra8 Nc8 Ra6 Qb4 Kg2 Qa5 Rac6 Bg1 Rd6 f1Q+ Kh1 Qe1 Kg2 Bgh2 Rd3 Qh4 Kf1 Qh6 Bc6+ Qg7 R8d6 Qf7 Bd7 Qe7 R6d5 Qc5 Rd6 Qa3 Bc6+
r3B2N/1Q1Qr1R1/p3Q1qR/1n1R3P/2K3b1/1B2B1nN/NBnk4/1n1N2q1 b - - 0 1 legal: proof: b4 d5 g4 h5 gxh5 b5 c4 f5 cxd5 a6 e4 e6 exf5 Bd7 a4 Rh6 axb5 Bc8 b6 Bc5 b7 Qg5 b5 Ba7 b6 Rh8 bxa7 Qd8 Ke2 Kd7 Kd3 Kd6 f4 Kc5 h4 Kb4 h6 g5 d6 c5 f6 g4 f7 e5 f8Q g3 d7 g2 h7 Qe8 d8N Qe6 f5 Qe7 f6 Bd7 f7 Nc6 Qe8 Nb8 f8B Ba4 Bb2 Nf6 Nc3 Ng8 Bg7 Qg5 Qe6 Nc6 Nh3 Nd4 b8Q+ Nb5 Qb7 g1Q Bf6 Rc8 a8B Ne7 Rc1 Rf8 h8N Rf7 Bg2 Nf5 Bc6 Rb8 Be8 Qg6 h5 Rc8 Rh2 Bb3 Rg2 Re7 Rc2 Bd5 Nc6+ Kb3 Qg4 Ng3+ Qgf5 Rb8 Nd1 Rc8 Qed7 Bf3 Nb4 Bg4 Na2 Rb8 Qbc7 Rd8 Bb7 Ra8 Bd5+ Ka4 Qb6 e4+ Kc4 e3 d4 e2 Qfe6 e1N Qbb7 Ka5 Rcf2 Nc2 Bg7 Ka4 Rf6 Ka5 Bf3 Ka4 d5 Ka5 d6 Ka4 Kd5 c4 Bd4 c3 Kc4 Ka3 Bd5 Ka4 Qdc6 Ka3 d7 Ka4 d8R Ka3 Ndf2 Kb2 Qcd7 Kb1 Kc5 Kb2 Bb3 Kb1 Kc4 Kb2 Nb4 Kc1 Na2+ Kd2 Qa7 Na1 Qab7 c2 Nd1+ Ne2 Rf8 c1N Rf6 Nc2 Rg3 Nec3 Rg2+ N1e2 Rg3 Qe4 Rh6 Nb1 Be5 Bf3 Rg7 Bg4 Bf6 Qg6 Bb2+ Ke1 Bfd4 Kd2 Qdc6 Qf2 Rd5 Ng3 Qcd7 Qg1 Be3+
1n3Q2/N1KQbBPN/kr6/r2qn3/2RRN2B/Nqn1p1n1/3BQ3/2R4R b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kc8 Kd4 Kb7 Ke5 c5 b4 a5 d4 h5 b5 e6 f6 h4 g7 a4 d6 a3 d7 a2 d5 h3 d6 c4 f7 h2 g6 c3 g5 c2 Nh3 Ne7 g8R Rh4 g7 Na6 g6 Nf5 Bc4 Qb8 d8B Qc7 Bd2 c1N Nf2 Ne7 Qe2 Nb8 Ne4 Ra4 Na3 Nb3 Rac1 Qc8 d7 a1Q+ Kd6 Ka8 b7+ Ka7 Rh8 e5 g8Q Qc3 g7 Rg4 Rh4 Rg6+ Be6 Q3c4 b6+ Ka6 Qh7 Rh6 Qf5 Ng6+ Be7 Ra5 d8R Nd4 Qh3 Nbc6 b8Q Qb7 Rf4 Qa8 b7 Nb5+ Kd7 Nc3 Kc7 Qb5 Bh4 Be7 f8N Qc4 Rd3 Qb3 Qc8 Nb8 Nh7 Nc6 Qf8 Nb8 Rhd1 h1N Bf7 Ng3 Qd7 Bc5 Rh1 Be7 Nd6 e4 Rd4+ Ka7 Rc4 e3 Rfd4 Ne5 Ne4 Ka6 Qfc8 Rb6 Qf8 Nbc6 b8N+ Ka7 Na6 Nb8 Nb4 Qd5 Nc6+ Ka6 Na7
2Q1Nqrn/2RBrP2/Nk1bp1Q1/1N3q1B/R2K3R/2R1B3/2Q2rn1/1B5r b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Kf2 Kd7 Ke3 h5 d4 a5 b4 c5 b7 Kc7 d6+ Kb6 f6 h4 d5 c4 g7 c3 b5 c2 d7 e6 d6 a4 g6 a3 g5 h3 Nc3 h2 Nf3 a2 Nh4 Na6 b8Q+ Ka5 b6 Ne7 g8B Ra7 g7 Qc7 d8R Nc6 d7 Nc5 b7 Ne7 g6 Kb6 Bb5 Nc6 Bh7 Ra5 g8Q Ne4 g7 Ra4 Rc8 Be7 d8R Nc5 Nf5 Bf8 Nd6 Rh4 Rd7 Nd8 Ne8 Qd6 Rdc7 Nf7 Bd7 Rf4 Nb5 Rf2 Bf5 Qe7 Kd4 Nd3 Be3 c1Q Qc2 Qf1 Qa8 Nf4 b8N Rh7 Na6 Nh8 f7 Ng2 Bg4 Qd8 Qae4 Bd6 Qg6 Qe7 Bh5 Qf8 Rc3 Rh6 R8c4 Rh7 Rc1 a1R Rc7 Ra2 Ra1 Rb2 Ra4 Rh6 Qge4 Rg6 Qa8 Qb1 Qc8 Ra2 Qh7 Rg5 Qcg6 Qf5 g8B Rac2 Rb1 h1R Rbb4 Ra2 Rbc4 Qh3 Qc2 Qf5 Qh6 Raa1 Bh7 Rg8 Qg6 Ra2 R4c5 Ra3 Re5 Raa1 Re4 Rab1 Na7 Rb5 Rh4 Rc5 Nb5 Rc6 Ra7 Rc7 Qd1 Ba3 Qh6 Nf4 Bc6 Qg4 Bb1 Re7 Bd7 Qf5 Qg6 Bd6 Qc2 Ng2 Rac7
qk6/1pBQ1NRr/Pn1q4/2q1b2N/QRB1R1N1/B5B1/1r4q1/b1K2R1Q b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 g5 f5 Nc6 f6 Kd6 h3 Bf5 gxf5 Ne5 h4 g4 Kf2 Nf3 Ke2 Ng5 hxg5 Kd7 Kf2 Kd6 Ke1 Kd7 d4 Kc8 Kd2 e5 a4 c5 a6 h5 a7 c4 g6 g3 d6 h4 d5 e4 g7 g2 d7+ Kc7 d6+ Kc6 a5 h3 Nf3 g1Q Ne5+ Kb5 Ba3 Ka6 Nc3 e3+ Kc1 h2 Rb1 e2 Nd5 e1B Ng4 Bg3 Nf4 Bh4 Rb4 Be7 f8Q Rc8 a8Q+ Qa7 f7 Bg3 f6 Rh4 Qe8 Be1 f8R Bg3 f7 Bf6 Nh5 Ne7 g8R Bge5 Rg7 Nd5 Qe7 Ba1 Re8 Nb6 f8B Bfe5 Qe1 Qc7 d8B Qc5 d7 Qd6 Rg1 h1Q Be2 Qh2 Rf1 Qg2 Qe6 Rh3 Bfe7 Rb3 Bh4 Rb2 Bg3 Rc7 Qd5 Bd4 Re4 Be5 Bf3 c3 Be2+ Nc4 Qed1 c2 Qc8 Qb8 Qc6+ Ka7 a6 Nb6 Qa4 Qa8 Bc4 Rc5 Qcc6 Kb8 Qd4 Ra5 Qg1 Rc5 Qh1 Ra5 Bdh4 Rb5 d8N Rc5 Qcb5 Rc7 Nf7 Rd7 Bd8 Re7 Ng5 Rf7 Qd7 Re7 Rg6 Rh7 Nf7 Bc3 Bd3 Bd4 Rg7 Be5 Be2 Qf8 Kd2 c1Q+ Kd3 Qc7 Ke3 Rb1 Kd2 Rb2+ Kd1 Qc6 Bc4 Qcc5 Kc1 Qfd6 Bc7+
5NRK/2n1n2Q/1B2br1n/1Pp2N2/kBnN3Q/1R1B2r1/3Q1B1Q/3R1n1b b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 h4 g5 f4 Bh6 f5 Qf8 f6 Qg7 Ra4 Qg6 Ra1 Qf5 gxf5 g4 Bg2 Ba6 Bf1 Bg5 hxg5 Bc8 Ke2 a5 Kd3 e5 Ke4 h5 f8B a4 b4 a3 d4 g3 b6 a2 d6 Kc6 f7 g2 d5+ Kd7 b5 c6 b7 h4 f6 h3 Kf5 e4 Kg6 e3 Kg7 e2 g6 e1N Bd3 h2 Be3 Rh3 Qd2 Rh6 Bf2 Rh4 Na3 Rh3 Ne2 g1N Rb1 a1N Ng3 Nef3 Nf5 Ra6 Rb3 Ne5 Nc2 Nc4 Ncd4 Ne2 Rd1 Rg3 Kh8 h1B g7 Ne7 g8Q Nc2 Qh7 Kd8 d7 Kc7 d8R Kb6 d6 Be6 d7 N2e3 Bh6 Kc5 f8N Ng4 Bhe3 Nh6 f7 Rb6 Re8 Na6 d8Q Nc7 b8Q Ra6 Ng6 Rb6 Rg8 Ra6 f8B Rb6 Rc3 Kb4 Rb3+ Ka4 Nf3 Ned5 Bb4 Ne7 Nf8 Ra6 Bb6 c5 Ba7 Ng1 N3d4 Nf3 Bb6 Nh2 Qe8 Nf1 Qh5 Bf7 Qh4 Bfd5 Ba7 Rf6 Bb6 Be6 Qd8 Rgg6 Qd6 Rg4 Qdh2 Rg2 Nc6 Rg3 Ncd4
5N2/1B1nN1RQ/1qRB1B2/N1B2b2/N1Qn4/R1nQq2p/n4PnK/1k4r1 b - - 0 1 legal: proof: c4 a5 h4 b5 g4 g5 a4 d5 cxd5 f5 gxf5 g4 axb5 Kf7 e4 Bh6 e5 Bg5 hxg5 Ke8 Qe2 Ra6 Qd1 Rf6 exf6 Ba6 Ra2 Bb7 Ra1 Bc8 b4 Kf7 d4 h5 b6 e5 b7 c5 b5 g3 b6 c4 g6+ Kf8 d6 a4 d5 e4 f7 Kg7 f8B+ Kf6 g7 Ke5 f6 g2 f7 a3 d7 h4 d6 a2 Qa4 Kd4 Bb2+ Kc5 Nf3 g1N Nfd2 c3 Nc4 Kd4 Na5+ Kc5 Ba6 c2 Kf1 c1Q+ Kg2 e3 Nc3 h3+ Kh2 Nh6 g8N Qf6 d8Q e2 Qe7 e1N d7+ Qd6+ Qf4 Qe3 d8Q Ne2 Rg1 Nf5 Na4+ Kd5 Rc1 a1N Bf6 Nb3 Rc3 Nbc1 Ra3 Nc3 Qec7 Nc6 b8B Ne5 b7 N1a2 Ba7 Rh4 b8R Rg4 Rb6 Be6 Qh6 Ke4 Bb7+ Kd3 Qc4+ Kc2 Qh7 Kc1 Ra6 Kb1 Bc5 Qc6 Qd2 Nd7 Bfd6 Rg6 f8N Nd4 Rg4 Bf5 Ne7 Qc7 Rc6 Qb6 Rh4 Rg1 Rg4 Ng2 Rg7 Qb3 Qde2 Qb6 Qed3+
1Q1RR1Bb/3n1bk1/8/RQN5/bbBP1nB1/8/Q1rN1pNK/n3b1BR b - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 fxe5 f4 g4 Ra6 Ra4 Rf6 Ra1 Rf5 gxf5 g4 Nc3 Bb7 Nb1 Qg5 hxg5 Bc8 Kf2 Kf7 Kg2 c5 d4 h5 e4 g3 b4 h4 f6 a4 d6 c4 b6 a3 g6+ Ke8 e6 a2 d7+ Kd8 b5 c3 e5 c2 f7 Ke7 d8R Bb7+ Nf3 Bc8 b7 Nd7 b8Q Ngf6 b6 Bg7 f8N Nd5 Be3 c1B b7 Bd2 Qb3 Bb4 Bc4 h3+ Kg1 g2 Nbd2 Rh4 Kh2 Bh8 Ne1 f3 g7 Nf4 g8B Rh5 Qa8 Rh6 b8Q g1B+ Kg3 h2 Ng2 Rh5 Qd5 Bb7 Qb5 Be4 Qa3 Bg6 Bf2 Bf7 Qaa6 Nb6 Nd7 Rh6 Nc5 Nd7 Rf1 a1N Qa2 Rh5 Rb1 Rh4 Rb3 Rh6 Ra3 Rh7 Ra5 Rh6 Be3 Bf2+ Kg4 Be1 Bf2 Be8 Kg3 Kf8 e7+ Kg7 e6 Bf7 e8R Rf6 e7 Rc6 Rf1 h1B Kh2 Rc7 Bg1 f2 Rf8 Bg6 e8B Bc2 Bh5 Ba4 Bg4 Rc6 Ne3 Bd5 Rfe8 Bf7 Ng2 Re6 Bb3 Re3 Bbe6 Rc3 Bc4 Rc2 Kg3 Nf8 Bh2 Nd7 Rh1 Ne5 Bg1 Nd7 Kh2
b2QBb1b/KQB1NR1b/2BR4/3n1r2/1b1p1PQN/2k5/BbR1Q3/5N1q b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 gxf5 g4 h4 Bh6 f4 Bf8 f6 Nc6 e3 Nd4 e4 Nf5 exf5 Nh6 Kf2 Rg8 Ke2 Rg5 hxg5 Ng8 Ke1 Bg7 Bd3 Qc7 Qf3 Kf8 Ke2 Bb7 Ra4 Nh6 Nc3 Rd8 Ra3 Bc8 Nb1 Kf7 Kf1 Rh8 Ra1 Bf8 Ke1 Ke8 Qd1 Ng8 Bf1 Qd8 Kf2 Kf7 Ke3 h5 Kd4 d5 c4 e6 b4 g3 b6 h4 g6+ Ke8 g7 Kd7 f7 Kc6 f6 a4 b5+ Kb7 c6+ Kb8 c7+ Kb7 c5 a3 c6+ Ka8 b7+ Ka7 b8N Kb6 Qe2 Ka5 b6 Kb4 b7 a2 Rh2 g2 Be3 h3 Nd2 Qd7 Rd1 Rh7 Ngf3 g1B Nh4 Nh6 g8B Rh8 Bg2 Bf2 Nf1 Qe7 Bf3 Bd7 c8Q Ng4 c7 Rh5 Nc6+ Kb3 Qd8 Rf5 c8B Qa3 Rd2 Qa8 Ne7 a1B+ Kc5 e5 Kb6 e4 b8Q Bb2 Qb7 Kc3 Rd1 Bb5 Bd7 Bd3 Be8 Qa1 Bc5 e3 Bd6 Be1 Rg2 h2 Bc7 h1B Rd2 d4 Bfc6 Bg7 f8Q Bh8 f7 Nf6 Qg4 e2 Qfg7 Qc1 f8R Nd5+ Ka7 Bb1 Qe5 Be4 Rd1 Bd2 Rf6 e1B Rd6 Qb1 Re2 Bdc1 Red2 Ba3 Bgf7 Bcb2 Rc1+ Bc2 Bcd7 Bg3 Ng8 Nf6 Re1 Bhe4 Qbc8 Bh1 Rde2 Rg5 Ba2 Qc1 Ra6 Bb1 Ne3 Ba8 Qb7 Bf8 Rd6 Kd3 Bc6 Nd5 Rc2 Qd1 Rh2 Qf3 Nf1 Qh1 Re4 Be1 Qee7 Ba5 Rd2+ Kc3 Ree6 Bg6 Rf6 Bf5 Rf7 Bh7 Qee2 Bb4 Ne7 Rf5 Rc2#
1n1N1NQR/n1NQ3K/R1Bp1B2/b7/1kq2r1N/1rQP3Q/3b1p2/2nR2B1 b - - 0 1 legal: proof: f4 c5 b4 a5 bxc5 h5 g4 e5 fxe5 b5 gxh5 Ra6 a4 Ra7 axb5 Ba6 bxa6 Ra8 Kf2 Ke7 Kg3 g5 Kg4 f6 Kf5 a4 Kg6 a3 c4 g4 e4 a2 h4 g3 a7 g2 h6 f5 e6 f4 c6 Kd6 e7 Kc5 e8N f3 h5 Be7 c7 Bd6 c8Q+ Kb4 e5 Bc7 e6 Bd6 h7 Bh2 c5 Nf6 e7 Bc7 c6 Be5 h6 Bd4 c7 Be3 Nd6 Nc6 e8N Bf4 Na3 Qe7 Nf7 Qd8 Nc4 Qe7 Nce5 Qd6 Nd8 Qc5 Bb5 Rf8 h8B Qd5 h7 Be3 d3 d6 Nd7 Bb6 Qb3+ Ka5 Be3 Rf7 Nf8 Qc4 Qh3 Rb8 c8Q Nd7 Nc7 Rf4 Be5 Rb7 Bf6 Ndb8 Bf2 Be3 Qcd7 Bd2 Be3 Rb6 Qb2 Rb7 Ba4 Rb3 h8R Kb4 Kg7 Ne7 Bc6 Nc8 Qe5 Na6 Kh7 Nb8 Ne2 g1N Ng3 Ne2 Rhd1 Nc1 Nf5 Qd5 Nh4 Qc4 Rb1 a1B Qd4 Ka5 Bf2 Bac3 Ra1+ Qa4 Qc4 Bb4 Qg8 Bbc3 Bg1 f2 Rb1 Qc4 a8Q+ Kb4 Qa4+ Kc5 Qa1 Na7 Qb2 Bb4 Ra1 Bbc3 Ra6 Ba5 Qa1 Kb4 Qc3+
1R4nk/3RbQQ1/K1pNB3/6b1/pq2RB2/1Q1N1R1P/r1N2n2/2Br1rQ1 b - - 0 1 legal: proof: b4 a5 g4 b5 a4 f5 axb5 h5 gxh5 d5 e4 d4 exf5 d3 b6 Nd7 b5 Ba6 bxa6 Qc8 cxd3 Qd8 d4 Nb8 d5 Rh6 Bh3 Rh7 Bf1 Rh8 Ra4 Kf7 Ke2 e5 h3 g5 Kd3 Kg7 Kc4 e4 Kb5 g4 f4 e3 d4 g3 h6+ Kh7 d6 e2 a7 e1R d5 g2 f6 Nd7 f7 Bg7 f8R Qc8 b7 Ne5 b8Q Re3 d7 Ng4 d8B Qe6 f5 Bc3 d6 Qf7 f6 Bd4 d7 Bc5 Bc4 Bb6 Na3 Re2 Nf3 Re6 Ne5 g1B Nc2 Qe8 f7 Bge3 Bg5 Qe7 d8N N8f6 Nb7 Rc6 Be6 Bf2 Re4 Bg1 Rd8 Bbd4 f8Q Bde3 Rd7 Rd6 Qfe8 Rd2 Nd3 Rf8 Qe1 Bgf2 Rf1 Bh4 Qf2 Bf4 Qg1 c6+ Kb6 Rf7 Qf8 Qa3 Nd6 Ng8 Qb7 Rd1 Rf2 a4 Ka6 Rb8 a8R Qc5 Qb1 Rb2 Rb8 Ra2 Qb3 Qb4 Qe8 Bd2 Be3 Be7 Bg5 Kh8 h7 Kg7 Rff4 Be1 Rf5 Bh4 Bge3 Bhg5 h8Q+ Kg6 Qhb2 Kh7 Rf1 Rf2 Bf4 Rf3 Qf6 Rf2 Qff8 Kh8 Qef7 Rf3 Rfe1 Rf1 R1e3 Nf2 Rg3 Qe1 Rf3 Qb4 Q8g7#
n5N1/1N1BRbB1/PQ2pB1r/R1n2Q2/1K2Nr2/R3RB1q/6p1/1n2Q1kb b - - 0 1 legal: proof: c4 c5 e4 d5 cxd5 h5 g4 a5 gxh5 f5 exf5 a4 d4 a3 bxa3 e6 a4 c4 a5 Bc5 dxc5 Rh7 Bg5 Rh6 Bc1 Rh8 Kd2 Kf7 Kc3 Kf6 h4 Ke5 a4 Ke4 f4 b5 f6 g5 c6 g4 d6 g3 c7 Na6 f5 Rh6 f7 Qe8 f8Q Bb7 c8B Rh7 h6 Rc7 d7 Qg6 d8N Qg5 f6 Rh7 h5 Rb8 f7 Nb4 a6 Rh8 a7 Nc6 a8R Na7 a5 Qf6+ Kb4 c3 h7 c2 h6 Qh4 Qe1+ Kd4 Rh3 Bd5 Nd2 Be4 Ra3 Bh1 Be2 g2 Ne4 Ne7 Bg5 c1N Nb7 Nb3 Re3 Qh3 Bf3 Nc5 Bd7 Nac8 Qd8 Nb6 f8Q Rc8 Ra6 Na8 Qb6 Rd8 Qf5 Rdf8 Ra7 Rf7 a6 Nd5+ Ka5 b4 Nf6 b3 Ng8 Nc3 Kb4 b2 Bd8 Qh2 Nh3 b1B Ng5 Qh3 Ne4 Bd3 Be7 Nb1 Bf8 Bb5 Bg7+ Rf6 Ne7 Rf8 h8B Rf7 h7 Ba4 Bc8 Be8 Ng8 Rf8 Bd7 Bg6 Ra5 Bf7 Re2 Kd3 Rea2 Rh6 Bf6 Bh5 Bhg7 Be8 h8R Bf7 Qh4 Ke3 R2a3+ Nc3 Ng3 Kf2 Ne4+ Kg1 Qe1+ Kh2 Rh7 Nb1 Re3 Rh4 Raa3 Rf4 Rh5 Rb8 Ne7 Rh8 Ng8 Rh6 Qg4 Nb3 Rha5 Nc5 Qf5 Qg4 Nd6 Nc7 Ba4 Na8 Re7 Qh4 Bd7 Qh3 Qc3 Kg1 Nb7 Rh8 Qd2 Rh6 Qe1+
b1Q2Q2/2rQ3B/r1p1R1R1/Bk3RB1/1NrNPB1q/2nn1Np1/6K1/1N4n1 b - - 0 1 illegal: No possible last move
N2Q1r2/4Pq2/4nR1R/2N1QQ2/pkB4K/rp1N1bBb/1B5B/q1RQ3r b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 h3 gxh3 Kd7 h4 Ke7 h5 Ke8 b4 Bc5 a5 b5 Bh3 Bb6 Bf1 Nc6 axb6 a5 Nf3 a4 Ng1 Na5 bxa5 Ra7 Na3 Ra6 Nb1 Ra8 Kf2 Ke7 Kg3 g5 d4 c5 h4 f5 e4 b4 b7 c4 b8B b3 h6 g4 h5 f4+ Kh4 c3 e6 f3 e5 f2 a6 c2 d6+ Ke8+ e7 Kd7 a7 Kc6 d7 g3 e6 g2 h7 Ba6 d5+ Kc5 h6 Kb4 d6 Qf8 d8B Bb5 e8Q Qf7 e7 Bc6 d7 Nf6 Ne2 g1R Bdc7 Kb5 d8Q Qg7 Qg6 Qg8 Qf5+ Kc4 Nf4+ Kb4 Bb2 c1Q Nd2 Qg2 Bc4 f1B Ne4 Qe2 Nc5 Ne8 Bd6 Rf8 h8R Nc7 h7 Qf3 Rg8 Qd5 h8Q Qf7 Rg6 Bf3 Qhe5 Ne6 Rf6 Bh3 Bbc7 Rc8 a8N Qc3 Rh2 Rh1 Rc1 Qd4 Rg2 Qg1 Rgg6 Qf1 Bb8 Rc6 Bdc7 Rd6 Rh6 Rd2 Bd4 Ra2 Bb2 Ra3 Bd6 Nc7 Nfd3+ Ka5 Qef4 Be4 Ra1 Re8 Qc2 Rf8 Qe3 Qc1 Qd1 Bf3 Bh2 Qb1 Qef4 Qa2 Rc1 Qa1 Qdd5 Ne6 Qe3 Qg6 Bbg3 Qg8 Qee5 Qf7 Nf2 Kb4 Qd7 Rh8 Qd8 Rf8 Nfd3#
n4B2/N1RP1Qb1/1Rb3R1/1pNB2RN/QQp1q3/1r3qBK/1rB5/3q1k2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 Be6 h4 Nf6 g4 Qd7 h5 Ng8 g6 Nc6 g5 Ne5 g7 Ng6 hxg6 Qd8 Rh5 Bd7 Rh1 Bc8 Kf2 Kd7 Kg3 Kd6 a4 Kc5 d4+ Kb4 f6 e5 d6 c5 f7 b5 d5 h5 d7 c4 a6 e4 a7 e3 d6 e2 a5 e1Q+ Kh3 h4 a6 Qde8 Bd3 Q8e5 Qd2+ Kc5 Nc3 Kd4 Na4 Q1e4 Ne2+ Kd5 Bc2+ Q5d4 Ng3 Qf4 Nh5 Be7 f8B Ke5 Qb4 Rh7 Nc5 Qff2 Bf4+ Kd5 Bg3 Nf6 g8R Bb7 d8N Qe4 d7 Kd4 g7 Ke3 g6 Ke2 Nc6 Ne8 Rhd1 Bd8 Rd6 Bf6 Ra2 Kf1 Ra4 Rb8 a8B Nc7 Na7 Qff3 Rb6 Bc6 Bb7 Re8 Ra1+ Ke2 Rg1 Rh6 Rh8 Bc3 g8Q Bg7 Qf7 Na8 Rg2+ Kf1 Rg8 Bb2 g7 Rd6 Rh8 Rd2 g8R Bg7 Rh6 Re5 Rg6 Red5 Rg5 R5d3 Rh8 Rb3 Rh6 Bd5 Rhc6 Re2 Rc7 Bc6 Bd1 Ra2 Bc2 Rab2 Rg6 Qd5 Nc8 Qd1 a7 Bd5 Kh2 Be4 Be5 Bd5 R2g5 Be4 Rbc6 Nb6 a8Q Bd5 Qaa4 Na8 Bf4 Qe4 Rb6 h3 Ba6 Bb7 Na7 Bd5 Qc3 Bb7 Kg3 h2 Kh3 Bd5 Bb7 h1Q+ Bh2+ Qhf3+ Bg3 Qe5 Qcb4 Be4 Bd5 Qef4 Be6 Bc6 Bd5 Qfd4 Nf6 Qde4 Nh5
QBn3KB/1r1pq2R/1NN2bR1/4R1nB/b7/Q1Pk1Q2/1p1NRB2/2b2q2 b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 c5 g4 h5 gxh5 f5 e4 b4 exf5 Ra7 d4 Rb7 dxc5 Rb5 axb5 Bb7 Qd4 Ba6 Qd1 Bc8 Ke2 Kf7 Kf3 Kf6 Ke4 g5 f4 e5 h4 g4 h6 b3 h7 g3 h5 g2 b6 b2 c6 Ba6 h6 Bb4 b7 Bc4 c3 Be2 c7 Bc4 c8N Qb6 a6 Qa5 a7 Qc7 a8Q Ba2 Be2 Be7 Bh5 Na6 b8B Nb4 Qf3 Qd6 Nb6 Qd1 Be3 Qc1 Ne2 g1Q Nd2 Bc5 Rh2 Qce1 Bf2 Be3 Nd4 Bb3 Ra6 Nd3 Nc6 Ba4 Kd5 e4 Kd6 Qe2 Ra5 Qh1 Re5 Qhf1 Rg2 Nc5 Rg6+ Kf7 f6 Ne7 f5 Ne6 Qa7 Rc8 h8R Rc7 h7 Rb7 Qa8 Ng5 Re8 Bd4 h8B e3 Re4 Ng8 R8e5 Ne7 Rh4 Qee1 Rh2 e2 Rh4 Qc1 Rhe4 e1B Re2 Kf8 f7 Qa1 Rb5 Qa3+ Rc5 Be3 Ke5 Nc8 Kf6 Bf4 Rce5 Qc5 Rh6 Qe7+ Kg6 Ne6 Kh7 Bg5 Rg6 Bf6 Bg3 Bf2 Bh4 Be3 Bf2 Qb4 Na5 Ke7 f8R Qc5 Rfg8 Kf7 Nc6 Qe7 R8g7+ Kf8 Ndc4 Bc1 Nd2 Ke8 Kg8 Ng5 Nb4 Kd8 Rf7 Ke8 Rh7 Kd8 Ba7 Kc7 Nc6 Kd6 Bb8+ Rc7 R5e3 Kc5 Re4+ Bd4 f6 Rb7 f7 Kb5 f8Q Be5 R4e3 Bf6 Nd5 Kc5 Re5+ Kb5 Nb1 Kc4 Nb6+ Kb3 Nd2+ Kc2 Qf4 Kd3 Qb4 Qg2 Qa3 Qf1 Qf7 Bg7 Qf4 Bf6 Qf3+
2QR2rN/KP1Qr3/pNR5/1B2p3/2BRq2N/rB2b2Q/2k3q1/B2n2Rn b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 d4 h5 b4 e5+ d6 h4 g7 a6 d5 c6 b7 h3 g6 h2 g5 Qe8 Kb6 c5 b5 c4 d7 c3 d8R c2 d6 Rh6 d7 Nc6 b8Q Rh8 f6 Bb4 f7 Ra7 f8N Qe7 Qc8 Rh3 Na3 Nf6 g8Q Qf7 g7 Nb8 g6 Rh4 Qh8 Bc3 g8B Qh7 g7 Ne8 Nc4 Rg4 Ng6 Nf6 Bb2 c1R Nf3 Nh5 Rg1 h1Q Nfh4 Bd2 Be2 Rc2 Rc1 Rc3 Ba1 Ng3 Bf7 Rd3 g8B Ra3 Qa4 Qg7 Qh5 Nc6 Nh8 Rg5 Qg4+ Bf4 Qh3 Nd4 Qd1 Ndf5 Qd6 Ra8 Qe7 Rb8+ Ka7 Ne3 b6 Nd1 b7 Be3+ Nb6 Qg6 Be6 Qg2 Ba2 Nh1 Bb5 Rf5 Qd6 Rf7 Rc6 Re7 Bgc4 Qh7 Rf8 Qf5 d8R Qff3 Qdd7 Qfe2 Be6 Qc4 Bd5+ Kd3 Rf4 Kd2 Rd4+ Kc2 Rh6 Qc6 Bdc4 Qce4 Rc6 Re8 Qdf5 Rg8 Qcd7 Rc8 Qfg4 Rc7 Qc8 Rf7 Qgd7 Re7 Bab3+
b7/BpRq1N2/4N1NP/K2Rqknq/5R1B/1b1QQ1p1/Q1rn2B1/N5Q1 b - - 0 1 illegal: Other
8/pp1NR1K1/1B1Qq1Bn/1N1q1b2/Q1Q1b3/1BNr2Q1/b1P2Rn1/1N1Rk3 b - - 0 1 illegal: No proof kernel
Q1NQn1r1/1n2K3/1nk3Pq/2NRp3/1Q2bR2/2B3p1/1b1N1BnB/R2Q3B b - - 0 1 legal: proof: c4 b5 e4 a5 a4 d5 axb5 f5 exf5 g5 cxd5 h5 g4 Ra6 gxh5 g4 f3 Rg6 f4 Rg5 fxg5 Ba6 Qc2 Bb7 Qd1 Bc8 Ke2 Kd7 Kd3 c5 Ke4 e6 Ke5 a4 h4 c4 b4 a3 d4 c3 d6 a2 f6 c2 f7 Qa5 d5 Qb6 g6 Qf2 h6 Qc5 b6 Nf6 h5 Qc7 h7 Qa7 b7 Qa4 b5 Qc4 b6 Rg8 h8N Qc7 h6 Bg7 f8R Na6 b8B Qa7 b7 Nc5 h7 Nb3 Nc3 Nc5 Bg2 Na6 Nf7 Bh8 Na4 Qc5 Be3 c1N Rh5 Rg7 Bh1 Qc4 Bf2 Nb4 Nf3 Ne2 Nd2 Qc1 Bc7 Rg8 b8Q Bg7 h8B Nf4 Qb6 Bb7 Qc5 Nc2 Qb4 Na3 Rf5 Ng2 Rf4 Qc4 Ra8 Qb3 Ra5 Qh3 Bb8 Qh6 Nc5+ Ke8 d7+ Ke7 Ba7 g3 Nd6 Kd8 Bg1 Kc7 Nc8 Bc6 Bh2 Ne8+ Rf6 Bb7 d6+ Kc6 d8Q Ba8 d7 Nc4+ Kd4 Nb6 Ke5 Nc7 Qf8 Ne8 d8Q Bb7 Ke4 Ba8 Rf4 Bb2 Bc3 e5 Kf5 Bb7 Ke6 Ba8 Rb1 a1N Ke7 Nb3 Rba1 Bb7 Na6 Ba8 Rd5 Na5 Nc5 Nb7 Ncb3 Nd7 Bf2 Nb6 Nc5 Nc7 Rd3 Na5 Qg7 Ne8 Kf7 Bb7 Ke6 Ba6 Qa7 Nb7 Rd5 Bd3 Ke7 Be4 Qa8
1K3NQ1/2Rr1Nk1/r1R2np1/R1N4P/2R3p1/BB1r1bQN/2q5/Q2n2Br b - - 0 1 illegal: Other
1KNr1R1b/r7/Q2RP3/1Rpp2BQ/2B2kN1/1nB2Nb1/R1b1q2Q/1N4b1 b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 b5 g4 b4 gxh5 b3 axb3 Ne7 b4 Bb7 b5 Ba6 b6 Bc8 b7 Ng8 b4 c5 d4 Qc7 d5 Kd8 b5 Ke8 b6 Qc6 dxc6 Na6 Qa4 Nc7 Qd1 Nb5 cxb5 Ke7 Qd5 Kd8 Qd1 Ke8 Kf2 Ke7 Ke3 Ke6 Ke4 g5 b8Q a5 h4 g4 h6 g3 h5 g2 h7 d6 c7 f6 b7 a4 b6 a3 h6 a2 Qd3 Ne7 Nf3 g1B Bd2 Ra3 Qa6 Bf2 Bc3 Rg8 h8B Be1 h7 Bf2 Rh6 Bd7 c8N Kf7 e6+ Ke8 e3 Kd8 Bc4 Nc6 Kd5 f5 e4 f4 e5 Nd4 e7+ Ke8 Rg6 Kf7 e8N Nb3 Bf6 Ba4 h8Q Bg1 Qh5 Be7 Qc7 Rf8 b8R Rh8 Ne1 f3 b7 f2 Nf3 f1Q Ra8 Qe2 b8R Rf8 Rb5 Rg8 Kc6+ d5 Rb8 Ke6 Kb7+ Bd6 Qch7 Rh8 Qh2 Kf5 Q7h5+ Ke4 Ka7 Bf8 Ra8 Bh6 Kb8 Bf4 Rg7 Bg3 Rd7 Rf8 Rd6 Kf4 e6 Rg8 Bg7 Rf8 Nf6 Rd8 Ng4 Bf2 Nbd2 Bg1 Rf1 a1B Nb1 Nd2 Ra7 Bc2 Bgf6 Nb3 Rf7 Bb2 Rf8 Bc1 Rd1 Bce3 Rd2 Bd4 Qb6 Ra7 Qa6 Bf5 Ra2 Be5 Be7 Bh8 Bef6 Bc2 Bg5+
qN2Qb2/2pBBPrN/6Bk/Qr2Q2r/6n1/K3NQ1p/R2r4/1Rn2N1R b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 b4 h5 d4 a5 Kd2 e5 Kc2 h4 Kb2 h3 b5 e4 d6 a4 b7 e3 g7 Kf7 f6 Kg6 f7 e2 d5 e1R d7 Rh5 b6 Ra6 d6 Nf6 g8Q+ Bg7 Ne2 Ne8+ Ka3 Nc6 b8N Na7 b7 Rh6 Qh8 Nf6 Nbc3 Qe7 d8Q Qd7 Ra2 Ne4 Qde8 Be5 Ng3 Rc6 Nd5 Re2 Ne3 Rg2 Qf3 Qc8 d7 Rb2 d8Q Re2 Qd2 Nf6 Qa5 Rec2 Bb5 Rh5 Ngf1 Rb6 Bd7 Rb5 Bd2 Bg3 Bb4 Rd2 Qe5 Qd8 Be7 Nc6 Qe8 Kh7 g6+ Kh6 g7 Nd4 g8B Nb3 Bh7 Nc1 Bg6 Bh2 Na6 Qa8 b8R Bf4 Qc5 Bd6 g5+ Kg7 Rb6 Ng4 Rb7 Be5 Nb8 Bd6 Bd8 Be7 Qd6 Bf8 Be7 Rc5 Rb1 Re5 Bc2 Rb5 g6 Kh6 Qe5 Rbd5 Kb4 a3 g7 Rb5+ Ka4 Qa7 Bg6 Qa8 Rc2 a2 Ka3 a1R+ Ra2 Qc6 Qe6 Qa8 g8N+ Kg7 Nf6 Kh6 Rb2 Rb1 Nh7 Rbg5 Rb7 Rb6 Qe5 Rb5 Bc2 Rg7 Bg6 Rc5 Rb3 Rb5 Rb1
KN2Rk2/Q3r2r/q5QN/3nB2q/4NB2/2pn4/2Pq1pBr/1RBQ2RQ b - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 f4 Bd6 f5 Nc6 f6 Ba3 g6 Ba6 g5 Bc8 axb3 Bf8 b4 Bg7 fxg7 Nb8 b5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 f5 Ke3 d5 Kd4 h5 Kc5 a5 e4 c6 b4 f4 e6 d4 e5 a4 b6 a3 b7 d3 b5 f3 e7 f2 b6 d2 Bg2 h4 Ne2 h3 Nd4 a2 Nc3 h2 Rb1 a1Q Rg1 h1Q Ne4 Nh6 g8Q+ Kd7 e8R Ng4 g7 Rh3 g6 Rh6 Qh8 Rh2 g8N Rh7 g7 Ne3 Nh6 Qhh4 g8Q Nd5 Qg6 Qa6 Rf8 Ke7 e6 Bd7 Rg8 Qc7 Rc8 Qh5 Qgg7+ Qf7 Qg6 Qd8 Qhg7 Ke8 e7 Ra7 Kd6 c5 Nc6 c4 Qgh5 c3 Qh1 Qe2 Qd4 Na6 b8B Qf1 b7 Qh5 Bc7 Nc5 b8B Nd3 Qc5 Rb7 Qa7 N3b4 Kc5 Qa6 Be5 Rc7 Bf4 Rb7 Bbe5 Nd3+ Kd6 Rc7 Qe2 d1R Qg4 Qa1 Nb8 Re1 Qd1 Re3 Qg4 Rh3 Qd1 Rb7 Qd4 Rh2 Qa7 Be6+ Kc6 Bf7 Bd6 Rd7 Bc7 Qa3 Kb7 Qa6+ Ka8 Bg6 Nf5 Kf7 Nh6+ Kg7 e8Q Re7 Qc6 Kf8 Bce5 Be8 Qd6 Qdb6 Qe6 Qe3 Qg6 Qd2 Rxe8+
Qr2Bq2/b1K5/1NR4R/4B1NP/5N1q/1bR2p1B/1pbkQr1r/2N2RQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 b4 d5 bxa5 e5 fxe5 Nc6 c4 Nb8 cxd5 Ba3 Kf2 Bb4 Ke1 Bf8 Ba3 g5 Bb2 Nd7 Bc1 Nh6 Qb3 Nf6 Qd1 h4 h3 Nh5 gxh5 g4 Nf3 g3 Ng1 Ng4 hxg4 Qd6 Qb3 Qd7 Qd1 Qd8 d4 Kd7 Kd2 b5 Kd3 f5 e4 c5 a4 g2 a6 b4 Kc4 h3 Kb5 c4 e6+ Kd6 a7 f4 e7 f3 e8Q h2 e5+ Kc7 a5 b3 d6+ Kb7 e6 c3 e7 b2 d5 c2 d7 Qc7 d8R Qg3 g5 Qh4 g6 Kc7 g7 Kb7 g8R Qf4 a6+ Kc7 Rd6 Qf5 Bf4 c1Q Rh6+ Qe5 Nc3 Qd6 Rgg6 Rg8 Ra3 Be6 Nh3 g1R Na2 Rg2 Rb3 Qe3 Nc1 Qf2 Rg1 Rd8 Ng5 h1B Ra3 Rh2 Bh3 Bg2 a8N+ Kb8 a7+ Kb7 Qd4 Qh4 Rf6 Qb8 d6 Bf1+ Ka5 Qc8 d7 Bd3 Rf1 Kc6 Qg1 Kd5 Kb6 Bc2 Rc3 Bf7 Rfc6 Rh8 Ne6 Ke4 Bd6 Rg8 Nf4 Rgg2 Bc7 Rf2 Bd6 Qa6+ Kc7 Rb8 d8N Bfb3 Nf7 Qa3 Ng5+ Kd4 Nb6 Bg7 a8Q Bh8 Na4 Be5 Ncd3 Ke3 Nc1+ Kd2 Kd7 Bd4 Kc7 Ba7 Nb6 Qb4 Be5 Bb1 Qf7 Bh7 e8B Bhc2 Qc4 Qf8 Qe2+
Q3Q1rR/K5p1/3B3P/2r1R1nn/B1pqN1k1/2qRn3/2QBQ1q1/N1N4R b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 d5 cxd5 b4 d4 b3 d6 Nd7 e3 Rh7 axb3 Rh6 b4 Nb8 b5 Rh8 d5 e6 Ra5 Be7 Ra6 Bf6 Ra1 Bd4 exd4 Bb7 Bd2 Ba6 Bc1 Bc8 f3 e5 Ra2 e4 Ra6 e3 Ra3 Bf5 Ra1 Be4 fxe4 Qf6 Qc2 Qe7 Qd1 Qd8 Ke2 Kd7 Kd3 f5 Kc4 a5 Kc5 a4 b4 a3 h4 e2 h6 e1Q h5 a2 h7 c6 h6 f4 e5 f3 b6 f2 b5 Qa5 e6+ Kc8 e7 Kd7 e8N Qa7 Na3 Qdc7 Bd2 Qa6 b7 Ra7 b6 Ra8 Qe2 Qa4 Re1 a1N Nc2 Ra7 Nf6+ Kd8 d7 Qg3 Ne4 Ke7 d8R Ra6 d6+ Ke6 d5+ Kf5 d7 Qh3 d6 Nf6 Bg2 Rg8 h8R Qhb3 Bh3+ Kg6 Be6 Qf3 Bb3 Qa2 Ba4 Kf5 Qd3 f1Q Ne2 Ra7 Nc1 Q3h3 Re3 Qe6 Qe2 Nh7 Re8 Qe1 d8Q Qf6 d7 Ng5 Qc7 Qg2 d8Q Qeg3 Rf3+ Kg4 Re5 Qh4 Qe8 Ra5+ Kb4 Nd7 b8Q Qe1 b7 Rc5 Qa8 Qd8 b8B Nf6 Qc8+ Qd7 Bd6 Nh5 Qc4 Qeg3 Rd3 Qe3 Qc8a6 Qc8 Qab5 Qd4 Ka5 Qc7+ Ka6 Qa5+ Kb7 Qac3 Na3 Nc2 Ka7 Ne3 Nc2 Kf4 Na1 Kg4 Qcb3 Rd5+ Kb8 c5 Qc2 c4 Qbb2 Rc5 Ka7 Qf1 Qd1+ Qf3 Qbc2 Qe2 Qf1 Qg2 Qe2+
n2QR2R/4K2R/1QqRP1k1/2q5/4BQqN/Br6/p1B1q1p1/bNB2bN1 b - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 Kf2 Na6 Ke1 Nc5 g3 Ne4 fxe5 f4 g4 Ra6 Ra4 Rf6 Ra1 Rf5 gxf5 g4 Nc3 Bd6 Nb1 Ng5 hxg5 Bf8 Kf2 Kf7 e4 h5 b4 c5 d4 h4 f6 c4 b6 a4 b7 c3 b8Q h3 e6+ Kg6 b5 a3 e7 h2 e8R g3+ Kf3 g2 b6 a2 d6 c2 e5 Qd7 Ke4 f3 Kd5 f2 b7 Qf5 d7 Bd6 d8N Bf8 f7 Rh6 Ne6 Bg7 Kd6 Bh8 f8B Bf6 d5 Bh8 Nd4 Rh3 e6 Re3 Bd3 f1Q Be4 Bf6 Qd2 Ra3 Qf4 Kh5 g6 Qf3 g7 Ne7 g8B Qe2 Bh7 Qfg4 Nf5 Rb3 Qa7 Bd7 b8R Bb5 Qb6 Bd3 Kd7 Nc8 Bfa3 Bh8 d6 Bc4 Qc6 Nb6+ Ke7 Na8 d7 Ba6 d8Q Bc3 Bd2 c1Q Qcb6 Bd4 Rh8 Qc6 Bdc1 Bb2 Qdd4 Bc4 Rbe8 Ba6 Qdd8 Bc4 Nh3 Bd3 Rd1 h1Q Ng1 Bc4 Rd2 Qhh3 Rd6 Qhe3 Bc2 Bd3 Nh6 Be5 Be4 Qec5 Nf5+ Kg6 Bcb2 Qc8 Nf3 Ba6 Nc3 Qef2 Rah1 Bd4 Bc1 Bf1 R1h7 Qe2 Nb1 Q8c6 Ng1 Ba1 Nh4#
1Q2nQrr/2p2q1Q/1NR1Q1R1/B3q1B1/RP1rN3/1b3R2/1k1p3r/2NB1K2 b - - 0 1 legal: proof: e4 e5 b4 h5 g4 b5 gxh5 f5 exf5 e4 c4 Na6 cxb5 Be7 d4 Nf6 b6 Bd6 b5 Bg3 a3 Be5 dxe5 Nb4 axb4 Ng8 f4 Kf7 h4 g5 h6 a5 f6 Ke6 h7 d5 f5+ Kd7 f7 a4 f8Q g4 b7 g3 b8Q e3 h5 a3 f6 Ke6 f7 d4 b6 Kd5 h6 e2 e6 Kc4 e7 g2 e8Q a2 b7 d3 Qe6+ Qd5 Bg5 Kd4 Nd2 Kc3 Qc2+ Kd4 Ne4 d2+ Kf2 e1R Be2 Qd7 Bd1 Nf6 Rh4 Nd5 Rg4 Rg8 h8R Qe7 h7 Qd7 Qb1 Qe8 Ne2+ Kc4 Nc1 g1R Rg3 Rh1 Rf3 Rg6 Rg8 Qd7 h8B Rh2+ Kg3 Re3 Bd4 Rd3 Bb6 Rd4 Ba5 Rgh6 Rg7 Rh8 Rg6 Qe8 Rff6 Bd7 Kf3 Ba4 Kg3 Bb3 Kf3 Rh1 Kg2 R1h2+ Kf1 Rg8 Qg7 Qe7 f8R Qf7 Rf3 Rgh8 Rd8 Rg8 Rd6 Rgh8 Qgf8 Rg8 Qf5 Nf6 Ra6 Ne8 Qe6+ Kb5 Rc6 Ka4 Qa7 Ka3 b8N Rgh8 Nd7 Rc8 Qd3 Kb2 Qb8 Rd6 Ng3 Nf6 Rg7 Ka3 Qfe7 Rcg8 Nb6 Ne8 Qh7 Rd3 Rg6 Rd5 Rb1 a1Q Qf8 Qe5 Ne4 Rd4 Ra1+ Kb2 Ra4
3b1B2/5NP1/1rQ3Rp/1Rqb1BbQ/8/1Q2p2k/1QRNKb1b/1N1r2BB b - - 0 1 illegal: No possible last move
2n3RN/1p3N1R/1B2RbQQ/3B2nQ/KP1QBp2/5nqN/2n1k1Nn/n7 b - - 0 1 illegal: No proof kernel
BBq2RN1/K4bQ1/NB5p/3p1r2/2nB1R1p/3QNR1r/Q1Nk1Pb1/3b4 b - - 0 1 illegal: Other
1k3RQ1/1R1p4/p1Rqr1b1/2QNr1BQ/2pq1BN1/4nP1K/3bBN2/QB6 b - - 0 1 illegal: No possible last move
1K6/B1rr1pBB/2k1nP2/2B1pr1b/Qbpn4/4Q3/R1RQN1RN/N1Q5 b - - 0 1 legal: proof: c4 a5 b4 h5 a4 b5 axb5 d5 cxd5 Nh6 g4 Ng8 gxh5 Qd7 Bh3 Qd6 Bf1 Qd8 bxa5 c6 d4 Qd7 e4 Qd8 d6 Qb6 d5 Kd8 d7 Kc7 Be2 Kd6 Bf1 Ke5 d6 Qd4 Qg4 Qc5 Qd1 Qd5 exd5 Kf6 Kd2 Ke5 Kd3 g5 Kc4 g4 Kc5 e6 Kb6 c5 Kc7 c4 d8R g3 h4 g2 f4+ Ke4 f5 e5 d7 Ne7 a6 Rh6 d6 Bb7 a7 Nbc6 f6 Rh8 b6 Nc8 h6 Rb8 a8Q Nb4 h5 Rh7 Nd2+ Kd5 Ba3 Kc5 Rh2 Rh8 h7 Be4 h6 Bd5 b7 Bf3 Ne2 g1R Ra2 Kb5 Qaa4+ Kc5 Qc1 Rg2 Nb3+ Kd5 Na1 Be7 Rg8 Rf2 d8N Bh1 d7 Bf8 Rgg2 Nc6 Ne6 Be7 d8Q+ Nd6 Ng5 Rf5 Bc5 Ra8 b8B Na7 Nf3 Nc6 Bba7 Nd4 Rc2 Rf8 h8B Rb8 Qdd7 Rbd8 h7 Rg8 Bg7 Ne6+ Kb6 Rc8 h8Q Rgd8 Qhh6 Rc7 Qhe3 Bf8 Qb4 Be7 Qda4 Nb5 Qbd2+ Nbd4 Ka6 Rc6+ Kb7 Rd7+ Kb8 Rcc7 Rh3 Bd6 Nh2 Bf8 Rhg3 Be7 Rf2 Bf3 Bh3 Bh5 Rgg2 Rf3 Bf5 Bd6 Bh7 Rf5 Qh3 Bf8 Rf3 Be7 Ra3 Bd6 Qhe3 Bf8 Bcb6 Bb4 Raa2 Kd6 Bc5+ Kd5 Qaa3 Kc6 Qa4+
1QRq1N1Q/K1B1qR1n/B1NR1r1n/8/Q3PNq1/Q1B1pp2/B5pb/5k2 b - - 0 1 legal: proof: d4 a5 g4 d5 a4 e5 e4 h5 gxh5 b5 axb5 c5 dxc5 d4 f3 Be6 Bd2 Bd5 exd5 e4 Bc1 e3 Ra4 Ra6 Ra2 Re6 Ra1 Re4 fxe4 Qe7 Bh3 Qd7 Bf1 Qd8 Ke2 Ke7 Kd3 Kf6 Kc4 Kg5 h4+ Kf4 b4 Kg3 c6 Kf2 b6 g5 Kb5 f5 c4 g4 c5 a4 b7 a3 d6 a2 d7 d3 c7 d2 Kb6 f4 c6 f3 b5 g3 h6 g2 h5 Be7 h7 Qf8 d8Q Nd7+ Ka7 Qf5 c8B Bf8 b8B Ba3 b6 Qf4 b7 Nf8 c7 Bb2 h6 Ne7 Qd3 Ba3 Nc3 Qd6 Nce2 Ne6 Bb2 Nf4 Nd4 Qe5 Be6 Nh5 c8R Nd5 Bc3 Qf4 Nge2 Rf8 h8N Qh4 h7 Rf6 Nc6 Ne7 Nf4 Qg4 Nhg6 Ng8 h8Q Bd6 Qa4 d1Q Bc7 Nh6 b8Q Qd2 Rd1 a1Q Bb3 Qa3 Ba2 Be5 Rh4 Qe7 Nf8 Kg1 Qda6 Qdd8 Rd6 Kf2 Qa3 Kg1 Q6a4 Kf2 N4e6 Bh2 Ba6 Kg1 Nf4 Kf2 Nd3+ Kf1 Rh3 Rg6 Rh4 Nf6 Rh5 Nh7 Rf5 Re6 Rf7 Rf6 Nf4+
q7/1QQ2BpP/r1R3K1/1Rp1NN1p/r1N4Q/BBR1rR2/1q2k3/N3b2b b - - 0 1 illegal: No proof kernel
1N1N4/p1r1p2k/KNp5/4n3/1R1Q2rR/BNr3Q1/RrbPQ3/2BB1Qb1 b - - 0 1 illegal: No possible last move, all moves rejected
bB1QKB2/8/2B4P/1b2R1Qr/1NQ1rNk1/1q1Nnp2/RppB2pR/3N4 b - - 0 1 legal: proof: g3 d5 c3 a5 Nf3 h5 Ng1 g5 b4 h4 bxa5 d4 Ba3 e5 Bb2 e4 Bc1 e3 dxe3 d3 gxh4 g4 f3 Nc6 f4 Nd4 cxd4 Be7 Qa4+ Qd7 Qd1 Bg5 fxg5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 f5 a4 b5 h5 c5 h4 d2 a6 b4 a5 g3 g6 g2 d5+ Kf6 g7 b3 e4 c4 a7 c3 e5+ Kf7 e4 c2 d6 Ke6 h6 b2 h5 Qb6 Kg5 f4 Kg6 f3 d7 Qc6 d8B Bb7 a6 Nf6 g8Q+ Kd7 Kf7 Qb5 e6+ Kd6 h7 Ke5 h6 Kf4 e5 Bd5 Ne2+ Kf5 Qg5+ Ke4 Ra2 Qb7+ Be7 Rhe8 h8B Nh5 Nbc3+ Kd3 Nf4+ Ke3 Qe2+ Kd4 Rh2 d1B Nd3 Ng7 Bd2 Rac8 a8N Qc7 a7 Qb7 Nc7 Qa6 a8Q Be4 Bf8 Bc6 e7 Qb7 e6 Be4 Na6 Rb8 Nab4 Qd7 Qaa5 Rec8 Qd8 Qd5 e8N Rc5 Nf6 Nf5 Ke8 Ne3 e7 Rb6 Bhg7 Re6 Nh5+ Re5 Nhf4 Rb5 Qe1 Be2 Nd1 Ra5 Qeh4 Rc5 Qb6 Qb3 Qd8+ Bd5 Qhg4 Ke4 Bh8 Re6 Be5 Ba8 Bb8 Rce5 Nc1 Ba6 Bb5 Rf5 Bd7 Bb5 Bc6+ Rd5 Ncd3 Re5 Qg7 Rh5 Qh4 Kf5 Qd4 Re5 Qf6+ Kg4 Qc4 Kg3 Qg5+ Ng4 Kd7 Re3 e8R Re4 Qgf6 Ne3 Re5 Kg4 Ke8 Rd4 Qfe7 Re4 Qg5+
1Q6/rPk1nNrp/N3p3/bp1pN2K/6QR/1RB1QBR1/4nBR1/3B3q b - - 0 1 illegal: No possible last move
bk2r1RB/RB1B2pQ/3Q1pN1/1Np1Nr2/KQB1R3/2bPp3/2Q5/1q1r4 b - - 0 1 illegal: Other
3Qn3/3NRRQ1/b3Rq2/2b4q/KQ1rk1Nr/2qr2Q1/n1BBPB1n/B4N2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 f5 Kc2 a5 Kb3 c5 h4 g5 e6 Kd6 e7 g4 e8R c4+ Ka4 c3 b4 c2 h6 f4 b6 g3 h7 g2 h5 f3 b5 f2 h6 Ba6 b7 Qh4 b6 Ra7 Nf3 g1R Bh3 f1N Nbd2 Bg7 Re7 Bc4 Nh2 Rg6 Bf5 Ra8 Ng4 Rf6 Qe1 Re6 Qg3+ Re5 Ra2 Ne3 Rf1 Na6 b8N Bf8 b7 Qh5 Nd7 Rd8 Ra1 Nf6 b8Q+ Nc7 Bg6 Ne8 Rff7 Nf1 Qb7 Nh2 Nf1 Nb5 Bd2 c1Q Bc2 Qe1 Ra3 Qf2 Re3 Qf6 Re4 Na3 Qb2 Ba6 Qbc3 Nb1 Qb4+ Kc7 d6+ Kc6 Re3 Kd5 Re6 Re4 Ree7 Rg8 h8Q Rg7 Qg8 Rh7 Qg7 Rf4 R3e6 Nc3+ Ka3 Na2 Ka4 Rh8 h7 Rf3 Nde5 Rd3 d7 Ke4 d5+ Bc4 Qa3 Ba6 d6 Rc8 d8B Rc4+ Qb4 Rd4 Rb7 Be7 d7 Bc5 Bb6 Nc3+ Ka3 a4 d8Q Na2+ Bc3 Rg8 h8B Rf8 Rbe7 Rg8 Kb2 a3+ Kb3 Rf8 Ka4 Rg8 Qh6 Rg5 Qg7 Rg6 Nh6 Rg4 Bd2 Rh4 Nhg4 Nc3+ Kb3 a2 Ba7 a1Q Nd7+ Kd5 Bb6 Na2+ Ka4 Qb2 Bc7 Qc3 Bcf4 Bd6 Bfe3 Bc5 Bf2 Qfg5 Qgb8 Rf4 Rf5+ Qe5 Qf7 Rc4 Qh7 Ke4 Rff7+ Qgg6 Bf6 Qgf5 Qg7 Qf4 Bc3 Qd2 Bg5 Rd4 Ba1 Qc3 Bd2 Kd5 Qg8 Qef5 Qg3 Qf6 Nde5+ Ke4 Qf8 Nd6 Qg7 Ne8 Nd7+
R2bk1N1/1N5n/1r2N2K/3NB1r1/1QR1BR2/2q1Qq2/B1PQnrb1/1qn4Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Ke3 e5 b4 a5 h4 g5 f4 e4 b6 g4 h6 g3 h7 g2 f6 a4 f7+ Ke7 c6 a3 b5 a2 h5 Qc7 h6 Kd8 b7 Ra4 b6 Qe7 c7+ Kd7 f5 d4+ Kf4 e3 f6 d3+ Kg5 e2 Bf4 e1Q Rh4 d2 Nc3 Q1e2 Ne4 Qc4 Nh3 g1Q+ Bg2 Rb4 Nd6 Qh1 Be5 Qce6 Nf4 Qb3 Nd5 Qg1 Rc4 Qe1 Be4 Bg7 f8R Qe6 f7 Nc6 b8Q Qeh3 b7 Qhc3 Qa7 Nd4 b8Q Rb6 Nb7 Nf6 Qa3 Rg8 h8N Qh1 h7 Qb1 Ng6 Qhf3 h8Q Ne2 Qhh1 Nc1 Qde1 d1N Qd2 Bh8 Qaa7 Nh7+ Kh6 Bf6 Nge7 Rg5 Ng8 Bd8+ Nd6 Ra6 Qb4 Bb7 Qae3 Bc6 Nb7 Rb6 Qee1 Qa3 Qee3 Nc3 Qec5 N3e2 Qce3 Be7 Ra8 Bd8 f8N+ Ke8 c8B Qc3 Bg4 Qbb3 Rb1 a1R Ne6 Ra5 Ra1 Qb1 Ra4 Ra7 Nbc5 Rf7 Nb7 Qg3 Bh3 Rf2 Bhf5 Qf3 Bg6+ Kd7 Bf7 Bb5 Rc6 Nf6 Beg6 Qd4 Nde7 Nc3 Qc5 Qb3 Nc7 Qb1 Ba2 Nh7 Ned5 Bf1 Ne6 Bg2 Qa5 Qc5 Rf4 N3e2 Qab4 Qc3 Be4 Ke8 Rc4
q1b2n1R/B1Q4r/nb1rBQ2/1k2N3/nqRB2NQ/5Rq1/P1b2N2/2R1N2K b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kd7 d4 e5 f4 c5 Kf2 b5 Kg2 g5 h6 g4 h7 c4 f6 g3 f7 b4 a6 e4 h5 b3 d6 Kc6 h6 b2 d7 e3 f5 e2 f6 e1Q a7 c3 d5+ Kc5 d6 c2 Qh5+ Kb4 Bc4 Be7 f8R Qe4+ Nf3 Qe1 f7 Bf6 Qh4 Qde8 d8Q Q1e4 d7 Nc6 Be6 Qg4 Nc3 b1B Ne4 Bb2 Ne1 Ne5 Qdf6 Nc6 d8N Nge7 Be3 c1N Nf2 Nb8 Nc6+ Kb5 Ne5 Qb4 Neg4 Nb3 Rh2 Nc5 Kh1 Bg6 Rc1 Nba6 Bd4 Rb8 a8Q Na4 Qa7 Bc2 Qc7 Ng6 Ba7 Rb6 Rh3 Bc3 Rg8 Bb2 f8N Bd4 Nd7 Rd6 Nde5 Bb6 Rg7 Nf8 Re7 Rg8 h8B Rg7 h7 Rf7 Bg7 Qd8 h8R g2+ Kh2 Qe8 Rf3 Qc6 Kg1 Qa8 Rd7 Rc6 Rd4 Rd6 Kh2 Rfd7 Rc4 Re7 Bh6 Rh7 Bg7 g1Q+ Kh3 Qf1+ Kh2 Qd3 Kh1 Qda3 Bh6 Qd3 Be3 Qg6 Bd4 Qg8 Nh2 Qg3 Nhg4
3rNR1B/4N1qk/5Q2/PKBr3B/BnN1qQ1N/1q5n/r5R1/2bn1bRQ b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kd3 c5 Kc4 g5 h4 Kg7 a4 e5 f4 b6 d4 g4 d6 e4 h6+ Kh7 d7 g3 f6 e3 d5 g2 h5 e2 d6 e1Q f7 Ra7 a6 Qde8 d8N Bg4 a5 Q1e7 d7 Rb7 a7 Nf6 a8B Nc6 f5 Qe1 Be3 Qg3 Be2 Bh3 Na3 Qh2 Nf3 g1N Ra2 Rg8 Ne6 Ng4 d8Q Qg3 f6 Nf2 Nh4 Rd7 Kb5 c4 Bc5 c3 Ng7 c2 Nc4 Nb4 Bc6 Qe4 Ne8 c1R Qd4 Bg7 f8R Bf1 f7 Nd1 Q8f6 Nh3 Rg1 Ra1 Qe3 Rd3 Qef4 Rd5 Bf3 Bh8 Rag2 Ra2 Bd7 Ndf2 Bd1 Qg7 Ba4 Nd1 Bg4 Qe6 Qh2 Qe4 Qh1 Qgg6 Qf4 Bb2 Bf3 Qg7 Qf6 Kh8 h7 Bc1 Qe5 Ndf2 Nf6 Rdd2 Rc8 Qe2 f8N Nd1 Qf4 Nd5 Kc6 b5 Ra8 b4 Kb5 b3 Rc8 Qg3 Nfg6+ Kg7 Ra8 b2 Ne7 Nb4 Rd8 b1Q h8Q+ Kf7 h6 Rd5 h7 Qee4 Be2 Qbb3 Bh5+ Qgg6 Rd6 Rd8 Ne8+ Rf5 Qd4 Kf8 h8B Qg7 Nc6 Kg8 Rf6 Rg5 Ne7+ Kh7 Rf8 Rgd5 Qdf6
Qn1Q1b2/2B1r2B/Pn2k3/1R1b1qrr/4N2q/RN1bRN2/2R2q1Q/1N1K3B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 b5 f4 c5 a4 e5 h6 g5 h5 c4 d6 c3 f6 b4 f7 e4 a6 c2 f5 b3 a7 b2 d5 e3 f6 g4 a5 g3 h7 e2 a6 g2 h6 Qe8 Nf3 g1R Rh3 Qe6 Ra3 Be7 f8R Qe4 f7 Qd4 Qd2 Bb7 Rc8 Qe3 f8R Qd3 Rf5 Bf6 Rc7+ Kd8 d7 Ke7 d8N+ Nd7 d6+ Kf8 Ne6+ Kf7 Nc5 Qb5 Nb3 Re8 a8B Ke6 Rg5 Nb6 d7 Qf5 d8Q Re7 Rc3 Qe4 Rb5 Bd5 Qf4 Be5 Qh2 Qf5 Bf4 Bg7 Bc7 Rg5 Bg2 Bf8 Bh1 Nf6 Rcc5 Bc4 Be4 Bd5 Rc3 Nfd7 Rg3 Rhg8 h8N Nb8 h7 Rh5 Nf7 Rgg5 h8Q c1Q+ Kf2 Nc6 Nd6 Qd2 Rc2 Nb8 Rh3 Qd4+ Ke1 Qf2+ Kd2 Qg4 Bh7 Qf5 Ne4 e1Q+ Kd3 Qh4 Rg3 Qf1+ Kd2 Qf2+ Kd1 Nc6 N1d2 b1B Qa8 Nb8 Qd4 Bc4 Qd8 Ba2 Nb1 Bd3 Na5 Bd5 Nb3 Qd4 Ne1 Qg1 Re3 Qgf2 Nf3
2bBBrqR/1P2QN1N/3n4/1r1q1N1q/1B5R/2Q2Nbn/R1b1k3/Rn4QK b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 a5 f4 c5 Kf2 e5 Kg2 h5 d4 h4 f6 Kg6 b6 e4 f5+ Kh7 b5 e3 g6+ Kh6 g7 Kg5 f7 Kf4 d6 c4 b7 c3 d7 c2 d5 a4 d6 a3 g5 a2 f6 Qa5 d8N Rh5 d7 Nc6 b8R Nh6 g8R Nf5 g6 Nb4 b6 Nd6 b7 Nd3 g7 Nf2 Nd2 e2 Rh8 Ke3 g8Q e1Q Ndf3+ Qed2 Ne2 Nh3 Ba3 c1N Qc2 Qdd5 Ng3 Ne2 Bb4 Nc3 Bb5 Nb1 Qc6 Bh6 f8Q Bf4 Nf7 Rg5 d8B Rh5 Ne4 Bg3 Qe7 Rg5 Ba4 Ke2 Qc3 Qab5 Rh2 Qe8 Qg7 Qg8 Be8 Rf5 Rh6 Ra5 Ra8 Rb5 Rh8 Rf4 Nh6 Qh5 f7 Rf6 f8N Qhd5 Ng6 Rf8 Neg5+ Kd1 Nf4 Bf2 Ne2 Ng1 Nh7 Be1 Nd4 h3+ Kh1 Qh5 Rb2 h2 Ra4 Nh3 Nf7 Bh4 Qg2 Bf2 Re2 Bg3 Re4 Qd5 Ne1 Qh5 Qg1 Qd5 Kg2 Qh5 Rh4 h1B+ Kf1 Bd5 Nef3 Be4 Nf5 Bc2 Kg2+ Be1+ Qg5 Ke2 Kh1 Bg3 Ra7 Na3 Rc1 a1Q Rd1 Qa2 Ra1 Nb1 Qe7+ Qe6 R7a2 Qe5 Qd7 Qd5 Qe7+
r3r3/1Rb3Qr/BBn1B1b1/nQB1nr2/2R1RrN1/4N1QN/P5q1/1RK1k3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 d4 Kf6 Kd2 b5 f4 e5 a6 g5 d6 c5 a7 e4 h6 c4 d5 g4 d7 b4 h5 g3 h7 b3 h6 b2 d6 g2 Qe1 Qb6 d8R Qb4+ Nc3 b1R d7 Bb7 Nh3 g1N Re8 Bc5 d8R Qb5 Nd5+ Kf7 f6 Kg6 f5+ Kh5 f7 Kg4 f8Q Kf3 f6 Bc6 f7 Bb6 Rc8 Ne7 Qg7 Bc7 f8B Qb7 Ne3 Rb4 Rb1 c3+ Kd1 Bd7 Ba6 Nec6 Bc5 c2+ Kd2 Rf8 h8N Bf5 h7 Bg6 Nf7 Na5 h8Q Nbc6 Nh6 Rf5 Nhg4 Rc4 B1a3 c1R Bb6 R1c2+ Kd1 Rh2 Qh5 Rb4 Qec3 Kg3 Rb2 Nf3 Kc1 Nfe5 Rb3 Ra4 Bac5 Kf3 Rb5 Ke2 Qa3 Rd4 Rd1 Ra4 Rd7 Ke1 Rb1 Rhf2 Qd3 R2f4 Qb5 Rb4 Qg5 Rb2 Ree7 Rh2 Rd4 Rh1 Rb8 Rh2 Rc4 Rh1 Ng1 Rh7 Nh3 Qc8 Rb7 Qg8 Nd5 e3 Re8 e2 Nde3 Rd8 a8B Qd5 Re6 Qg2 Re8 Nf7 Ree4 Nfe5 Ra7 Rdf8 B8b7 Ra8 Bc8 Nb4 Rb7 Nbc6 Kb2+ Kd2 Be6 e1R Ra1 Re2 Kb1 Ke1 Kc1 Rd2 Rb1 Rdd8 Bd4 Re8 Bdc5 Rf3 Qf4 Rf1 Qh2 R1f4 Qg3+
QQnnRbkN/1n3N1Q/5qbB/1r1b4/5RBn/r5nP/2RN4/1RK3BN b - - 0 1 illegal: No possible last move
3N2kb/1RB1R3/3Q3n/1R5r/2NQQ1bb/RBKP2Qb/1nN1B2b/3qrn2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 d6 h5 b6 c5 g6+ Kg7 b7 e4 d7 a4 f6+ Kh6 g7 Kh7 g5 e3 f7 a3 b5 a2 g6+ Kh6 b6 e2 f5 c4 f6 c3 Nf3 c2 Na3 h4 Ne5 h3 Nec4 Qc7 d8N Bd6 f8Q h2 f7 Na6 b8R Nb4 b7 Nd5 Qe8 Ne3 f8Q Bh3 Qe4 Qd7 Qfe7 Be5 Qd6 Ra6 Bb2 c1N Nc2 Ra3 Rg1 h1B Bd4 Qg4 Bb6 Bf3 Bc7 Bh2 Rg3 Ra7 Rb1 a1B Rb5 Rh7 Re5 Bc3 Re7 Ra1 Qdd4 Qd7 Qd6 Bfg4 Rf3 Nf6 g8B Bd4 Be6 Ng8 Rg3 Bh8 g7 Na2 Qdd4 Nc3 Rf3 Na4 Qd6 Nd5 Ra3 Ne3 d3 Nb2 Kd2 Qa4 Kc3 e1B+ Qd2 Rc1 Be2 Bh4 Qe1 Rd1 Qg1 Nf1 Qgd4 Re1 Bf7+ Kg5 Bd5 Nh6 g8Q+ Kh5 Nb4 Qd1 Nc2 Bf3 Qgg3 Bfg4 Rba8 Kg5 b8R Kh5 R8a5 Kg5 Qh1 Kf5 Be6+ Kg6 Re5 Kf6 Rb7 Kg6 Bf7+ Kg7 Qhe4 Kf8 Be8 Kg8 Ba4 Rg7 Reb5 Rg5 Bb3 Rd5 Bb6 Rh5 Bc7
b1B5/b7/nR1rrNNR/n5q1/nR1BP2Q/KbQ3Q1/1n1k1nQ1/N3R2B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 d4 g5 Kd2 c5 Kc2 a5 Kb3 f5 e4 a4+ Ka3 c4 b4 c3 b6 c2 d6+ Ke6 b7 f4 b5 g4 b6 f3 d5+ Kf7 e6+ Kf6 e7 Ke5 e8B f2 h6 g3 h5 g2 h7 Nd7 b8Q Ndf6 h6 Bb7 Bd7 Be7 Nd2 Kd4 Nh3 Ke3 Bb2 g1N Ng5 c1N Qg4 Nd3 Bg2 f1B Nb3 Ra6 Bc8 Nd7 Re1+ Ne2 Na1 Kd2 Bd4 N7c5 d7 Ba8 d6 Nf6 b7 Re8 h8Q Nb2 h7 Nc3 Rh6 Bc4 Bh1 Bb3 Qh3 Ng4 Qg2+ Nf2 Qc7 Bf6 b8R Be5 Rb6 Re6 Qf6 Bf4 h8N Be3 Nh7 Qg8 d8R Qg5 d7 Rd6 Kb4 a3 Ng6 a2 Qg7 N3a4 Nf6 Re6 Ka3 Rd6 Re8 Re6 Rb4 Rad6 d8Q Na6 Re7 Rb6 Qcg3 Rbd6 Nc2 a1N Reb7 Ba2 R4b6 Nb3 Na1 Na5 Rb4 Bd5 R7b6 Bb3 Qdd7 Re8 Qdh3 Ree6 Qhh4 Rc6 Be5 Bc5 Bd4 Rcd6 Rb5 Ba7 Rb6 N4c5 Qc7 Nca4 Qcc3+
q1bKb1N1/2Rn2b1/2Q1R2P/b1bQQ3/NRnB1r2/1n4k1/1R1B1r2/4BN1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 e4 f6 d4 c4 b4 g4 h4 c3 d6 g3 d5 c2 e6+ Ke8 h6 a4 b6 a3 h5 a2 b7 g2 b5 Nc6 b8Q Qd7 b6 Qe7 b7 Na7 e5 Qg7 h7 Qg3 d7+ Ke7 d8N Qg7 d6+ Ke8 d7+ Ke7 h6 Qf7 Qd5 Bg7 Nf3 g1B Nfd2 Be3 Nc6+ Kf8 d8B Bc5 Rh4 Nb5 Ne7 Qe8 Bg2 Na3 Ba5 Nc4 Nf1 Ra7 Bg5 c1B Bh1 Bd2 Nc3 Qa4 Rd1 a1N Rc1 Nb3 Rg4 Qe8 Na4 Qd8 Kg6 f5 Qbd6 f4 b8R f3 Q6c6 Be1 Bgd2 Nf6 Ng8 Nd7 e7+ Ke8 Kf5 f2 Ke6 Rb7 Bac3 Rb4 Rb7 Qa5 Rc2 Qa8 Rb2 Rb6 Rc7 Rb4 Nh2 f1B Bd4 Bd3 Nf1 Bg6 B4c3 Bef2 Be1 Bb6 Bcd2 Ba5 Rh4 Bc5 Rd4 Nd6 Rh4 Re4 Rf4 Re2 Rb4 Rf2 Rc4 Nb5 Rf4 Be3 Rb4 Na3 Kd6 Bh5 Ke6 Bg4+ Kd6 Be6 Nf6+ Kf7 e8R Kg6 Ke7 Kg5 Kd8 Rf8 Ng8 R8f4 Re7 Bf5 e6 Kg4 Re8 Nc4 e7 Bg6 h8B Bf8 Bhc3 Bc5 Bd4 Bg7 Rf8 Bcb6 e8Q Bc5 Qee5 Be8 Rf6 Kh3 Re6 Kg4 Nh2+ Kg3 Nf1+
QQQR1Nn1/RNQNBP2/Bb2n3/3R3k/2bB4/4bq2/r1rb3r/RK5b b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 c5 g4 h5 d4 e5 Kd2 a5 Kc2 h4 g6+ Kg7 b6 Kh6 g5+ Kg7 d6 h3 d5 a4 b5 a3 b7 h2 d7 a2 d6 c4 b6 c3 Nf3 e4 Ba3 e3 Ne5 e2 Qc1 e1B Nd2 Nc6 b8Q Qf6 d8R Bf2 d7 Qe6 b7 Bh4 Ba6 Bf2 Be7 Ba7 Ne4 Rh3 f6+ Kh8 g7+ Kh7 f5 Rh6 f7 Bf2 f6 Be3 Nc5 Qg4 Rf1 Rh3 g6+ Kh6 Qc7 h1B b8Q Rh5 Rf5 Qf3 Nb7 Bd2 Bc5 Rh2 Bd4 Bc5 f8N Bb6 f7 Ra7 Nd3 Ra8 Rd5 Ra7 Ne5 Kh5 Re8 Ra8 d8B Be6 Be7 Nd8 Qa3 Bc8 Qc1 Ne6 Red8 Bd7 Qa3 Bb5 Qac5 Bc4 Ned7+ Ng5 Qcc8 Ra7 Q5c7 Ra8 Rf1 a1B Kb1 Bb2 Re1 Bbc1 Rd1 Be3 Rg1 Bcd2 Rc1 Nh6 g8Q Ra7 g7 c2+ Kb2 Ra8 Ra1 c1R Qh8 Rc3 g8R Rc2+ Kb1 Ra7 Bb5 Raa2 Ba6 Kg4 Rg6 Ng8 Rgd6 Ne6 Ra5 Bf4 Rdd5 Bg5 Qa8 Bde3 Qhe5 Kh5 Q7b8 Bd2 Qec7 Be3 Bb5 Bd2 Ra7 Be3 Ba6 Bd2 Rd6 Bge3 Rd5+
Bn1bbKb1/N1qP4/5BN1/3nr2Q/b2N2N1/1QRr4/1bRQB2k/3R1Rr1 b - - 0 1 illegal: No possible last move
Q4R1r/1N1rn1q1/BqQbkB2/1R3NQb/5P2/1R2b2Q/3b2nb/3NN1BK b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 e5 f4 g5 Kf2 c5 Kg2 a5 d4 g4 h6 a4 h5 e4 h7 g3 d6 c4 h6 c3 b6 e3 b5 e2 f6 e1Q d5 a3 b7 c2 b6 a2 d7 Ra6 d6 Qa5 Qd5+ Kg6 f7 Kf6 Rh5 Ra8 Kh1 Qa4 Qc6 Ra5 Ba6 Qa3 Nf3 Bg7 f8R+ Ke6 Be3 c1B Ne1 Rf5 Bg1 Bd2 Nc3 Qb2 Nd1 Bd4 Rb1 Rf7 Rb5 a1B Rb3 Qc7 d8Q Nd7 b8Q Ndf6 b7 Ne7 Qa8 B4e3 b8N Nfd5 d7+ Qd6 Rb5 Qg7 R1b3 Be5 Qa5 Bf2 Qd8 Ne3 Qa5 Ng2 d8N+ Kf5 Nb7 Bfe3 Qd8 Qc5 Qa5 Bd6 Qd8 Ke6 Qa5 Rg8 h8B Qb6 h7 Bd7 Bf2 Be8 Bg1 Qg5 Bf6 Rh8 Qc5 Rg7 Nc6 Bh5 Qac3 Rf7 Qc2 Qg7 Qg5 Nd5 Qc1 Rc7 Ne7 Rd7 Nf5 Ne7 Bf2 Nh4 Qc6 g2+ Kh2 g1B+ Kh1 Bh2 Bg1 Rg8 h8Q Ng2 Qhh6 Rh8 Qh7 Bg4 Qhh4 Bh5 Qh3
1r4rQ/1r1k1R2/2n2bQ1/4Rn2/2qB1NQN/K1bQR2B/1P2bNRB/2b4q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 c5 h4 a5 d4 g5 Kd2 e5 Kc3 g4 Kb3 e4 h6 e3 d6 e2 f6 e1Q d5 g3 b6 a4+ Ka3 g2 f7+ Kd7 h7 c4 b7 c3 h5 c2 f5 Qe4 h6 Qdh4 f6 Qee1 Be3 c1B Rh2 Qg4 Nd2 Ne7 Ndf3 Qe6 Nh4 Qe5 Bd4 Rg8 h8N Be3 h7 Bg7 f8R Nec6 f7 Qe7 N8g6 Qe5 h8Q Ne7 Qg4+ Qe6 Nf4 Ra5 Ngh3 g1B Rg2 Ra8 Nf2 Be5 Re8 Nbc6 b8B Ba6 f8R Be2 Rc1 Bd2 Rc3 Bf6 Re3 Nf5 Qhg7+ Qf7 R8e5 Bc1 Q7g6 Qd1 Rh2 Ra7 Bh3 Rb7 Rg2 Qf1 N2d3 Bf2 Bc7 Be1 Nf2 Bc3 Bb8 Qe8 Bc7 Qh1 Bb8 Kc8 d7+ Kd8 Rf7 Qe6 Rf8+ Ke7 R5e4 Bf3 Bb6 Nd8 Nh5 Ra7 Bh2 Bfe5 Ka2 a3 Nf4 Nc6 Kb3 Kd6 d8Q+ Rd7 Qdf6 a2 Qh8 Bf6 Re5 a1R Ba7 Ra4 Bb6 Rb4+ Ka3 Be2 Bc5+ Kc7 d6+ Kb7 Ba7 Qc4 Bb6 Rd8 d7 Rb8 d8Q Rb5 Qd1 Rb4 Bc5 Kc7 Bd4 R4b7 Qd3 Kd7 Rf7+
5KBk/R1bB1RN1/1nQ3bq/1r1Q1Rqr/2b2N1Q/4PQN1/2R3b1/2B1n2n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 Kg3 a5 Kh4 c5 g4 f5 d4 Kf7 b4 Kg7 e6 c4 e7 f4 e8N+ Kh7 b6 c3 b5 f3 d6 f2 e3 c2 d7 a4 b7 a3 d5 a2 d6 Qa5 d8Q Qb6 g6+ Kh6 d7 Qc5 b6 Qd4 g7 Kh7 Kg5 h4 Qf6 h3 d8Q h2 Bh3 f1B Qdf3 Bb4 Q6c6 Bf8 Nd2 Qd6 Ne4 Bc4 Ng3 Bf5 N1e2 Nh6 Rf1 h1B Nf4 Qd5 Kf6 Bg2 g5 Bg6 Bd7 Bd6 g8R Ra7 Ng7 Ra5 Rf8 Nf5 Rf7 Bc7 Qe7 Qb5 Qec5 Kg8 Q5d5 Rh5 Ke6 Kh8 Rf2 Nd6 Ke7 Ne4 Kf8 Qa6 Rd2 Nf2 Rf5 Nh1 Rf2 Be8 g6 Rb5 Rf1 Qa5 Rf7 Qc3 Rf2 Qf6 Rf1 Qg5 Rf5 Na6 b8Q Nc5 b7 Na4 Qd8 Nb6 b8R Bf7 Ra8 Qh6 Rb1 a1Q Qh4 Qf6 Ra7 Qfg5 Rb2 Be8 Bd2 c1N Rc2 Nd3 Bc1 Qh7 Nge6 Qhh6+ g7+ Kh7 Rff2 Bg6 Rf1 Ne1 Rf7 Qf6 Rff2 Qhg5 g8B+ Kh8 Ng7 Qh6 Rfd2 Qfg5 Rd4 Rc5 Re4 Ra5 Re5 Rb5 Ref5
nqN3K1/b4r1n/4BRNB/3r2Q1/1bkqN1RB/1bP2r2/1R1Q4/2Q2bNQ b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 a5 Kc4 g5 Kd5 e5 f4 g4 b4 d6 h4 e4 c3 g3 h6 a4 f6 g2 b6 e3 b7 a3 c6 e2 b5 e1Q f5 a2 h7 Bd7 h5 Qe3 b6 Bg7 h6 Bf8 c7 Be7 c8N Qf8 Rh4 Ba4 Bc4 Qh3 Rg4 Bc2 Qd2 Nd7 b8Q Bd3 b7 Ra7 Qc7 Qg3 b8Q Bf1 Qd8 Qe3 Qbb2 Qf2 Qg5 Qe8 Nd2 Qd4+ Kc6+ d5 Ne4 Qf8 Rb1 a1R Bf4 Bd6 Bg3 R1a5 Bh4 Bb4 Qbc1 Nb6 Rb2 Na8 Qd6 Re7 Qdf4 Rc5+ Kd6 Qe8 Qfd2 Qb5 Ne2 g1B Ba2 Be3 Ng1 Rec7 Bc4 Qb8 Bb3 Ne7 Ba2 Rf8 h8Q Ng6 h7 Ne5 Qh6 Nf3 Bc4 Ng5 Q8g7+ Ke8 h8N Nh7 Ke6 Rcf7 Qgg5 Kd8 Qhh5 Kc7 Ng6 Kc6 Bb3 Kb5 Qhh6 Rfc7 f7 Rd7 f6 Rcc7 Ba4+ Kc4 Qhh5 Rdd8 Bd7 Qd3 Qde1 d4 Bg3 Ra7 Qh1 Qd2 Bh4 Qf2 Qe2+ d3 Qed1 d2 Qe1 d1B Qed2 Ba5 Ke7 Bc7 Bf5 Bb3 Ke6 Rd3 Ke7 Rfd8 f8R R8d5 Kf7 Bd6+ Kg8 Bb4 f7 Bb6 Be6 Rf3 Re8 Re7 f8B Ba7 Bh6 Qd4 Rf8 Rd7 Rff4 Rf7 Rf6
3B1QqQ/1Rr1q3/Bb4Q1/N4b1R/2P3q1/N1q2rn1/kr3RnB/1R2QNK1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 Kf2 d5 b4 a5 h4 g5 c6 e5 b6 d4 b7 g4 f6 Ke6 h6 Kd5 f7 a4 h7 d3 f5 Kc4 b5 a3 c7 e4 h5 a2 b6 Nc6 b8N Nf6 b7 Ra3 h6 Ne7 Bg5 Ng6 Nf3 Nf4 Nc6 N6h5 b8B Qe8 f6 Bc5+ Nfd4 Rf8 h8R Ra7 h7 Bb6 Nd2+ Kc3 Rb1 a1Q Be2 g3+ Kf1 e3 Na5 Qb2 Nb5+ Kb4 Na3 g2+ Kg1 Qe6 Nf1 d2 Kh2 g1R Ba6 e2 c4 e1Q Qc2 Rg3 Qg6 Ng2 Bh4 Bd7 c8Q d1Q Qe8 Qdg4 Rg8 Q1e2 h8Q Rb3 Rg7 Qc3 Bc7 Rb2 Bhg3 Ra8 Bd8 Rc8 Rh7 Rc5 Kg1 Q2e5 Rh3 Qeg5 Bh2 Ng3 R3h5 Qge5 Nc6+ Kb3 Na5+ Ka2 Rg7 Q5d5 Rgh7 Qed6 Qe1 Q5e6 Qh6 Qg8 Qg6 Qg4 Rg7 Re8 f8R Re3 f7 Be6 Re8 Bf5 f8Q Rf3 Rb7 Qd7 Re4 Qe7 Re2 Rc7+ Rf2
1R3NBB/1N1bqRR1/n1QbNPr1/rq5k/4B3/3b1Q1q/4Q2n/1R1qQ2K b - - 0 1 illegal: No possible last move, all moves rejected
1RB2N2/2n3B1/3QQK1N/2nRB3/1bQ2b1r/3Q2P1/2Nbb2q/nR1n1Rrk b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Ke4 h5 Ke5 a5 f4 a4 b4 e6 d4 a3 g6+ Kg7 d6 Kh6 g7 h4 b6 a2 d5 c4 b5 h3 g3 h2 b7 c3 b6 c2 f6 Ne7 g8Q Ra3 d7 Ra6 d6 Ra4 f5+ Rf4 f7 Rh7 f6 Na6 b8Q Nc5 b7 Nd5 Bh3 Nc7 Qe1 Kh5 Na3 Rf1 Bb2 c1B Rb1 a1N Nf3 Rg1 Ng5 Qe8 d8Q Bf4+ Kd4 Bd7 Nc2 Bb5 d7 Be2 Qc3 B8d6 f8N Qg6 f7 Qh6 Qc4 e5+ Kc3 e4 Kd4 e3 Be6 Re1 Rf1 h1N Bh3 Nf2 Bf5 Ne8 Bh3 Be7 Qd6 Nc7 b8R Nd1 Be6 Na4 Ke4 Nc5+ Kf5 Rh8 Be5 Rh7 Rf2 Rg1 Rf1 Rh8 Ng6 Qh7 f8B Qh6 Bfg7 Bf8 Kf6 Qh7 Bf7 Kg4 Bd5 Qh2 Bb7 Rh4 Nf7 Kh3 Bc8 Kg2 Nh6 Kh1 Qge6 Bf3 Re1 e2 Rf1 e1B Qdd3 Bd6 Nf8 Bed2 Qde7 Be2 d8R Na4 Rd7 B6b4 Rd5 Nc5 Q7d6
Qb4B1/N2n4/K2nQBNR/nN2Rb2/1P1Qqrbr/R5n1/1B5N/1kRb4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Ke7 d4 a5 Kd2 c5 Kd3 f5 Kc4 h5 e4 f4 b4 a4 d6+ Ke6 b6 f3 Kb5 c4 d5+ Kf7 d7 Kg6 b7 a3 d6 a2 e6 f2 e5 c3 e7 c2 e8R h4 e6 h3 e7 h2 Bb2 c1N Nf3 Ra4 Bc4 f1B Nc3 Bg2 Qd4 Ne2 Rac1 Nh6 Bg8 Qc7 d8B a1N d7 Qe5+ Kb6 Nb3 Nb5 Nf5 Na7 Bh3 Nb5 Na6 b8Q Ra5 Qa8 Nac5 Na7 Neg3 Nb5 Kg7 g6 Kf6 g7 Nd6 g5+ Kf5 g6 Rh4 Na7 Ra1 Nb5 Na5 Ka7 Ncb7 Ka6 Bg4 Bd5 Nf7 g8Q Rh6 Rc7 Rf1 Rc1 Qf4 Ba2 Ne5 Qb3 Rh3 g7 Rf2 g8N Bh6 Rc6 Rh4 Rhc1 h1B Nh2 Bhf3 Qbe3 Bg5 Rh6 Bd1 Rf8+ Bf6 e8R Qf3 Re7 Qd5 Rfe8 Rf4 Re6 Be7 Bc4 Bd6 Bf6 Qh1 d8N Bb8 Nc6 Qd5 Nca7 Nd6+ Qb7 Bd7 Qa8 Qg2 R6e7 Be6 Ba2 Nd7 Rec8 Qf3 R8c3 Qd5 Ra3 Qe5 Qc5 Qd5 Qb3 Ke4 Re8 Qc6+ Qb6 Qd5 Ne7 Bef5 Ng6+ Be6 Rec8 Bef5 R8c5 Qc6 Qg8 Qd5 Bb3 Kd3 Qf7 Qe4 Re5 Kd2 Qe7 Kd3 Bg8+ Kd2 Rca1 Kc2 Qe6 Bh5 Qd4 Bhe2 Rd3 Beg4 Raa3 Kb1 Rdc3 Qe3 Rc8 Qe4 Rc1#
1bbN3N/3Q4/4nrp1/3RQb2/1K2P3/RR1qNk1B/Bn1Q1BQ1/2rrB2n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 d4 a5 Kd2 f5 Kc3 c5 b4 a4 e4 c4 e6 Kd6 b6 a3 e7 f4 e8B f3 b7 f2 b5 a2 b6 g6 h6 Be7 h5 Rh7 Nd2 Bd7 Qf3 Qc7 Bh3 f1B Bf7 Bf6 Kb4 c3 Ne2 c2 Nc4+ Ke7 d6+ Kd8 d5 Bg2 Bd2 c1R Nd4 Ra6 Ne3 Bf5 d7 Ke7 Rd1 Kd6 d8Q+ Ke5 d6 Qc2 d7 Ne7 Ne6 Qd3 Be1 Bg5 Qc8 Bf4 d8Q Nd7 b8R Nc5 b7 Na4 Qcd7 Nb2 Qg3 Bf3 Qg2 B3g4 Bg8 Rf7 h7 Rd6 h8Q+ Rf6 h6 Rd5 h7 Rd6 Rb1 a1N Ra8 Nb3 b8B Nd4 Ra3 Bg3 Ba7 Rd5 Nc5 Kf4 Nb7 Ne6 Qg7 Bh2 h8N Bg3 Qa5 Bh2 Nd8 Bg3 Qd2 Kf3 Qac7 Bh2 Qcc2 Bb8 Bf7 Nc4 Rbb3 Nb2 Bd4 Nf4 Nc4 Rc6 Rc3 Qe3 Qdd3 Be6 Qe5 Nf5 Qe8 Bc8 Qd7 Ng3 Qh2 Bf5 Qdc2 Rb1 Rdd3 Rdd6 Qcd2 Rf6 Ba7 Ra1 Rd6 Qd3 Baf2 Rb1 Ne3 Rd1 Ba2 Nh1 Rd5 Ne6 Rcb3 Rcc1 Qg2#
nbRN3N/B1p4k/b2bn3/3BRR2/4r1Qq/8/r1QQPrR1/1NnKBB2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 g5 h4 f5 b4 Kf7 h6 Kg6 h5+ Kh7 b6 a5 b5 a4 e6 f4 d6 g4 e7 f3 e8B a3 d5 g3 b7 a2 b6 g2 d7 Na6 b8B Bb7 d6 Nf6 Bd2 Nb4 Bf7 Ne4 Rh2 Qe7 d8R Nc3 d7 Bc6 b7 Ne4 Nh3 g1N Ba7 Nc3 b8Q Ncd5 Re8 Bb5 d8Q Ba6 Rg2 Nb6 Qc2+ Nd3+ Kd1 f2 Be1 Nf3 Nf4 Nd4 Ne6 Qh4 Qbc8 Bd6 Qdd7 Rg8 Nd8 Rg4 Re5 Re4 Qg4 Nc1 Bd5 Ne6 Qb8 Nc8 Qb4 Nb6 Qbd2 Nd7 Na3 Nb6 Rb1 a1B Rb5 Bd4 Nb1 Rb8 Rf5 Na8 Ra5 Rb2 Re5 Kh8 h7 Ra2 Rc5 Qg5 Ra5 Kg7 h8N Kh7 h6 Qh4 Ra3 B4c5 Rf3 Bb6 Rff5 Be3 Bc5 Bd4 Bb4 Ba7 Bc5 Bb8 Be3 Rc4 Ba7 Re4 Nc6 Nb6 Ng6 Kg8 h7+ Kg7 h8R Na8 Rc8 Kh7 Nd8 Raa4 Nh8 Ra5 Rg3 Ra2 Bh3 f1R Bg2 Rf3 Bf1 Rf2 Rg2
1rB2nb1/p2Qr3/1QN1BBB1/N1nqbR2/1b2RQ2/4K1n1/3P1r1k/N1R2R2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 b4 Kd6 f4 h5 g4 e5 g6 c5 b6 c4 b5 h4 b7 e4 f6 c3 g7 e3 f7 c2 b6 h3 g5 h2 f5 Ke5 d6 Kf4 d7 Kg3 f6 Qe7 d8Q Rh7 g6 Qd6 Bh3 Bg4+ Nf3 Qb4 Na3 Qc5 Nc4 Na6 b8N Qc8 b7 Qc6 Qg1+ Kf4 Ra4 Bb4 f8R Rh5 f7 Ne7 g8B Qe4 g7 Qf5 Bb2 c1B Na5 Qe6 Bh7 Qd7 g8B Ng6 Bf6 Qd5 Nbc6 Bb2 b8Q+ Be5 Qd7 Be6 Nfd4 Rf5 Nc2 Nc5 Qb1 Kg3 Na1 Rf4 Rc1 h1N Qb6 Rf1 Qe4 Rb8 Bf5 Kh2 Bg4 Nh8 Bg6 Rf3 Qf4+ Ng3+ Ke1 e2 Bh3 Rb3 Kf2 e1R Bhf5 Rb1 Bg4 Rf1+ Ke3 Rf2 B4f5 Bbc3 Re4 Bb4 Rd8 Rb2 f8R Bf7 Be6 Rc2 B8h7 Bg8 Rf1 Rc1 Rc8 Rc4 Bgf5 Ng6 Rf7 Nf8 Bhg6 Nd3 Nd8 Rd4 Rcc1 Rc4 Bg4 Rc7 Ndc6 Nc5 Be7 Rcc8 Rf5 Re8 Bf6 Re7 Be2 Rf7 Ba6 Re7 Bc8
n1K3QB/1N1BNr2/7q/2Q1Q1bN/R3R2k/2Bbpb2/1R2QPr1/1nqr2N1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 h5 Kf4 c5 Ke5 a5 g4 e6 d4 a4 b4 h4 f6 Kg6 b6 c4 b5 c3 d6 c2 d7 a3 b7 h3 b6 a2 d5 h2 d6 Na6 b8Q Rh6 b7 Qb6 d8B Rh4 f7 Bh6 f8Q Nf6 d7 Ne4 Bb5 Nf6 Bd2 c1Q Qc5 Ne8 Bc3 Bg7+ Bf6 Qb2 d8N Ra7 Bd7 Nec7 Qe2 Na8 Nd2 Nb4 Ne4 Nc2 Ng3 Bh6 Nh5 Qc1 Bh8 Na3 Qbc7 Qc6 b8R Ba6 Rb2 Nb1 Nb7 Bd3 Q7a5 Rh3 Qab5 Rg3 Qa5 Qa4 Kd6 e5 Ke7 e4 Kd8 e3 Kc8 Qf4 Qac7 Rg2 Q7e5 Kf7 g6+ Kg8 g7 Kh7 g8N Kg6 Bf5+ Kg5 Ne7 Kh4 Bd7 Qf6 g5 Qa6 g6 Bg5 g7 Qh6 Nd8 Rb7 g8Q Ra7 Nh3 Rb7 Rd1 h1B Ng1 Rb6 Rb5 Rf6 Rb2 Rf7 Nb7 Rh2 Ng3 Bf3 Nh5 Rg2 Rdd2 Bf5 Rd5 Bd3 Rd4+ Bfe4 Rd2 Qb2 Bh3 Na3 Rf1 a1R Bd7 Rb1 Rc1 Qa1 Rcc2 Rd1 Ra2 Qc1 Rdb2 Nb1 Raa4 Bb5 Nf4 Bf3 Re4 Bd3 Nh5+
3Rb3/b2nBRB1/1R5r/1k2nR1r/5qPQ/3N1QpN/Qn1qr1Q1/K2N1B2 b - - 0 1 illegal: No proof kernel
1QQ1K3/1N3Nkb/4R1BR/QnbB4/1q2qPrr/1RBB3N/n1q1b1p1/1Q6 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 d5 Kb4 g5 c4 e5 f4 e4 h4 e3 b6 a5+ Kb5 d4 b4 e2 f6 e1Q c6 a4 b7 g4 c7 d3 c5 d2 c6 a3 h6 g3 h5 a2 h7 g2 h6 Qd7 Bd3 Qee6 Bb2 Bg7 Na3 Ra7 Qb1 d1B Nh3 Na6 b8Q Qed6 Bc3 Ne7 Nc4 Rd8 h8N+ Kg8 f7+ Kf8 h7 Re8 Na5 Rd8 Nb7 Qh6 Kb6 Qhe6 b5 Qg4 Re1 Qg5 Re6 Qgd5 Qa8 Nb4 Bg6 Ra3 Qa5 Qe4 Kc5 Bc2 b6 Qd1 Kb5 Bd7 c8B Ned5 Kc5 Be5 c7 Bd4+ Kd6 Kg7 f8R Rb3 Rff6 Rg8 Nf7 Bb5 Bd7 Bbd3 c8B Nc7 Ke7 Be2 Bc6 Nb5 Bd5 Bcd3 Bd7 Qc2 Be8 Bc5+ Kd8 Ra3 h8Q+ Kf8 Bh7 Rb3 Rh6 Ra3 Qe5 Rg4 Qc7 Rb3 Qc8 Rh4 Ne5 Kg7 Beg6 Ra3 Ke8 Rg4 Qh1 Rh4 Rd1 a1Q Rb1 Na2 Rb3 Qab2 Qb1 Rg4 Nd8 Rh4 b7 Rg4 b8Q Rh4 Bd2 Qbd4 Bc3 Qb4 Qab6 Ra7 Qa5 Rf7 Nb7 Rf5 Bh5 Rg5 B7g6 Rg3 Bf3 Rgg4 Nf7+ Qe5 Bc4 Bf5 Bd3 Qed4 Bh5 Bh7 Bd5 Qe5 Bhg6 Qed4 Be1 Qe4 Bc3+
N2bb1Rn/1n1r3B/b1B1R2Q/qQ1N2Qr/1NKP1R2/1rB3q1/B3k1p1/7N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 g5 Kc3 f5 b4 c5 h4 a5 e4 c4 h6 g4 b6 a4 e6 Kf6 b5 f4 h7 a3 d6 f3 d7 f2 h5 a2 h6 g3 e7 g2 e8B Ra6 b7 Qc7 d8Q+ Be7 b6 Ke6 e5 Kf5 e6 Ke4 Bf7 Bf8 e7 Qe5 e8B Ra8 Nh3 Qf6 Qa4 Kf3 Bc6+ Kg3 Bb2 Qg6 Bd3 f1B Nf2 Qf5 Rh4 Qe5 Rf4 Be7 Qb5 Na6 b8N Nc5 b7 Bd7 Na6 Rb8 Nc7 Be8 Na8 Be2 Kb4 c3 Kc4 c2 Nc3 c1R Qda5 Re1 Nd5 Bd8 Bc3 Ne7 Rd1 Rf1 Re1 a1Q Bg8 Ng6 Nh1+ Kh2 Be6 Kg1 Bf7 Qe3 Bg8 Qg3 Bf7 Rg8 h8R Rg7 Rg8 Nh8 h7 Qa3 Be6 Rd7 Bf7 Bf3 Re6 Be2 Bg6 Rf3 Bf7 Rc8 b8N Kf1 Na6 Nb7 Nab4 Qa4 Qc7 Qa5 Qe5 Rcc7 Nf6 Rd5 Qg5 Re5 Nfd5 Rd7 Bb2 Ke1 Bc3+ Kd1 Qg7 Rh5 Qg5 Ng6 h8Q Bf1 Qhh6 Nh8 Kb3 Be2 Bh7 Bd3 Qc5 Ba6 Qb5 Re3 Kc4 Ke2 Bfg6 Re7 Bb1 Rd7 Bhe4 Rf3 Ba2 Rd3 Be1 Ra3 Bc3 Rb3 Bh7+
2R5/1B3b1N/Kb5r/1NRQ1QPb/1Q1N1R2/1nB4q/n2BpQ1k/q1r3Rn b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 d4 h5 g4 a5 b4 e5 f6 c5 d6 h4 d5 h3 g6 a4 g7 h2 g5 a3 f7 a2 b6 Qe7 Kb5 c4 d7 c3 d8R c2 b7 Na6 b8Q Rh7 f5 Bb7 d6 Rh3 d7 Bc8 f6 Qe8 Nc3+ Kf5 Qb6 e4 Nf3 Kg4 Qd5 Kg3 Bg2 e3 Bd2 c1N Rg1 h1B Nd4 e2 Qf5 Nb8 Bb7+ Kh2 Rb1 Be7 f8N a1Q f7 Bd5 Nh7 Na2 f8R Nf6 g8Q Ne4 Rbc1 Ng3 Qge6 Bb3 Qed5 Nc6 Rf6 Rb8 Ka6 Nh1 Ncb5 Qh5 Rc5 Na5 Rdf8 Rc3 d8B Qh3 R6f7 Bd6 Bf6 Bc7 Rd8 Bd7 Rc8 Be8 Bh8 Bc4 Qbf6 Bb6 Qf2+ Qg2 Q6f5 Rc1 Nb3 Bc7 Ba8 Rc2 Qd8 Bd3 Q5f4+ Ng3 Bhc3 Nc6 Nd4 Bg6 Nd6 Na5 b5 Bh5 b6 Rc1 b7 Nb3 Qg4 Ba5 Rf4 Bef7 Qf5 Nh1 Qdd7 Bd8 Qd5 Ba5 Q7f5 Bc7 Rg8 Re8 b8Q Re6 Rc8 Rh6 Qb4 Bd8 Bb7 Bb6 Qe3 Qg3 N6b5 Qh3 Qf2+
NKRb4/1B3N2/3nR2k/r3pbn1/N1nr1QQ1/1BbRqq2/BB1R2P1/2Q5 b - - 0 1 illegal: No possible last move
Q1b1nB2/2R3R1/B1r2NK1/2Np4/k1qq2RQ/2RQB1P1/N2bnN2/rr4n1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Ke3 Kd7 Kf4 a5 b4 h5 c4 e6 f6 e5+ Kf5 e4 f4 a4 c6+ Kd6+ Kg6 h4 f5 a3 c5+ Kc7 f7 h3 f6 h2 g3 e3 Qd3 e2 Be3 e1N Nh3 a2 Nc3 Nf3 Nf2 Qd7 b6+ Kd8 b5 Ng1 b7 Kc7 b6+ Kd8 Rd1 a1Q Na2 Be7 f8N Na6 b8Q Nb4 c7+ Ke8 c6 Qg4 b7 Qb2 Nd7 Rh4 Nc5 Bd8 f7+ Ke7 f8B+ Ke8 Qa7 Qbd4 b8Q Nc2 Qb4 Nf6 Qaa3 Rb8 Qa8 Qe2 Qbc4 Rb1 Qca4 Ra1 Rb1 Qeg4 Rb7 Qc4 Qb4 Nd4 Ra7 Nde2 Ra4 Ba6 c8R Qgd4 Rc7 Bc8 Rg7 Re4 c7 Re6 Ra3 Rc6 Rc3 Ba6 c8R Rb1 Rb8 Bc8 Rbb7 Ba5 Rbc7 Kd8 Kf7 Ne8 g6 Qb3 Rh7 Qbc4 g7 Ra1 g8N Rb1 Rg7 Ra1 Rc1 Rb1 Qa4 Bd2 Rc3 Ra1 Nf6 Rb1 Re7 Ra1 Re4 Kc7 Reg4 Kb6 Kg6 Rb1 Q4a7+ Kb5 Qe7 Nh3 Rg1 h1R Rg2 Ra1 Rh2 Nhg1 Rhh7 Rh5 Qee4 Re5 Qh1 Re7 Qh4 Rb7 Rc7 Rb8 Rhg7 Rbb6 Qb7 Ka5 Qb8 Rbb1 Qa8+ Qa6 Qf5 Nc1 Bc4 Nce2 Nb7+ Ka4 Qd3 Qaa7 Ba6 Qc4 Qh3 Qb6 Qh4 Qbd4 Nc5+
q1rRbb2/8/k1B2r2/qBRpB1Nn/3N1bQ1/n2P2qR/KN2QB2/N5Q1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 b3 axb3 Qb6 b4 Qc7 b5 Qd8 f4 e5 c4 d5 h4 Kd7 h6 Kc7 f6 Kb7 b6 a5 f5 g5 c6+ Ka6 b7 a4 h5 e4 f7 g4 f6 g3 c5+ Ka7 h7 g2 h6 e3 c7 e2 c6 a3 Nc3 a2 Nf3 g1B Nd4 Bh2 Nc2 Qd6 Na4 Be7 f8R Qd7 f7 Bb4 Rd8 Bbd6 f8N Qg4 Ne6 Bd7 c8B Bhe5 c7 Qh5 Nb2 Bb4 Ng5 Bg4 Bd7 Qh3 c8Q Bec3 Ba4 Qe3 Rh3 Bf3 Qg4 Nc6 b8N Nce7 Nc6+ Ka6 N6d4 Ra7 Rb1 Be4 Na1 Nf6 Bc6 Rg8 h8Q Nc8 h7 Bg6 Qg7 Nb6 h8B Bf8 Qe7 Nh5 Be5 Bb4 Qg7 Bbc5 d3 Qf4 Be3 Bcd6 Kd2 e1Q+ Kc1 Qa5 Be2 Qg3 Bf2 Rf7 Qe1 Bb8 Bd1 Rf6 Bda4 Be8 Qee2 Nc4 Kc2 Rh8 Kb3 Na3 Rc1 Bc7 Rc5 Bcd6 Nac2 a1Q Qg8 Rh7 Qg6 Rc7 Qg8 Rc8 Qg6 Q1e1 Ka2 Qeb4 Na1 Qb8 Q6e4 Qa8 Qg2 Bh6 Qg1 Bdf8 Nh7 Bd2 Ng5 Bf4 Bab5+
qr1QNQn1/k1BbR1KR/7P/b2B2B1/1N1Q1q2/2Qq3N/Npn3rR/1r6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 b5 Ke4 c5 Ke5 Kc7 d4 Kb7 f4 g5 a4 c4 h4 g4 f6 g3 a6+ Kb6 a5+ Ka7 f5 c3 h6 b4 h5 c2 d6 b3 f7 g2 h7 b2 d5 e6 f6 Bd7 h6 Bg7 f8Q Qc7 Bg5 c1Q Nh3 g1Q Bg2 Q7c2 Qc8 Ba4 d7 Qc3+ Qd4+ Qc5 d8Q Qcd1 Rh2 Qf3 Nc3 Bb3 Re1 Bc2 Na2 Bf8 f7 Be7 f8Q Qgf1 Re3 Qb6 d6 Ba4 d7 Qd3 Qcc3 Bb4 Re2 Qg4 Bd5 Qg2 Rf2 Qgf1 Rf7 Qh1 Re7 Nc6+ Kf4 e5+ Kg4 e4 Kh5 Rc8 Kg6 e3+ Kg7 Ka8 a7 e2 Ng1 e1R Nh3 Kb7 a8N Rb8 a6+ Ka7 Nc7 Rb1 Ne8 Qc5 Re1 Ba5 Re7 Ka8 a7 Qcc4 Nc7+ Kb7 a8N Qhf3 Nb6 Ka7 Ne8 Nb4 Qc8 Qfe4 d8B+ Bd7 Bc7 Nc2 Qd8 Qb4 Bb7 Qf4 Nd5+ Qb6 Ndb4 Qc5 Qdf6 Qc6 Qd6 Qca6 Bd5 Qb7 Qde5 Qa8 Qed4+ Rb6 Bh4 Nf6 Kf7 Rg8 h8R Rg2 Bg5 Ng8+ Kg7 Rf1 Qdf6 Rb1 Rh7 Rb8 Qfd4+
1n4Nr/4QQ2/4nP2/2BqbkrN/1KBBq1n1/p1Q1R2r/1B4b1/N1R3NR b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 e5 f4 c5 d4 a5 Kd2 g5 Kc3 a4 d6 a3 b6 c4 h6 e4 b7 g4 h5 e3 h7 e2 d5 e1Q+ Nd2 g3 b5 g2 h6 Qdh4 f6 Be7 b6 Qe5+ Kb4 c3 f7 c2 f8B Qg7 Qf3 Qgf6 Nb3 Qe6 Bc4 Qf5 Bb2 Qhh3 Rc1 Ra7 Na1 Qfg4 f5 Bh4 Qb3 Kd8 d7 Qhg3 Bc5 Ne7 Qf3 Rg8 h8Q Ng6 h7 Qe4 Qhc3 Ne5 h8B Ng4 Bhd4 Qd6 Qf2 Ke7 d8R Bf6 Re8+ Kf7 Qf1 Qc6 d6+ Qcd5 d7 Rh8 d8Q Be5 Qc7+ Kf6 Qd7 Kg5 Qe7+ Nf6 Qf2 Ra8 Qff3 Rh3 Qh5+ Kf4 Qg6 Ng4 Qgf7 Nd7 b8N Bb7 Nc6 Nb8 f6 Kg5 Nd8 Kf5 Ne6 Bc6 Nf4 Bb7 Re1 c1N Nh5 Ne2 Rc1 Bc6 b7 Nf4 Qd8 Ne6 Qde7 Nd7 b8N Bb7 Nf3 g1R Nc6 Rg2 Ng1 Rd8 Rg8 Nb8 Rg6 Rh8 Rg7 Ne3 Rg3 Ng4 Re3 Ba6 Ba2 Bf1 Bc4 Rgg3 Qee8 Bg2 Ne7+ Kg5 Ng8 Kf5 Qee7 Nh6 Be2 Rg5 Bb5 Ng4 Bc4
QR3b2/2Q2R1R/b1n1Bp2/Qr1B1qn1/1qnrNB2/3Q1rN1/NP2R3/1K4k1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 e4 a5 d4 g5 Kd2 c5 Kc2 a4 e6+ Kd6 e5+ Kc7 b6+ Kb7 d6 Kc6 b7 Kd5 h6 Ke4 e7 a3 e8B g4 h5 c4 h7 g3 e6 c3 e7 f6 d5 a2 d7 g2 h6 Ra6 d6 Bg7 Rh2 Qb6 d8Q Ra5 d7 Qf2+ Ne2 Kf3 Qc7 g1N d8Q Ra4 Bf4 Nd7 b8R Rd4 Bh3 Nb6 Be6 Ba6 B8f7 Nc4 e8N Nh3 Nd6 Ng5 Ne4 Bf8 Rg2 Ne7 Qd3+ Ne3+ Kc1 c2 Nbc3 Nc6 N2g3 Rg8 h8Q Qf1+ Kd2 c1R h7 Re1 Rc1 a1Q Re2 Qa3 Na2 Qb4+ Rc3 Rc1 Qa5 Qf2 Qdc7 Kg2 Bd5 Rg1 Bfe6 Nc4+ Kc2 Rf1 Rb3 Rg7 Qg8 Rg6 h8R Kg1 Rh7 Rh6 Rf7 Rh5 Qh8 Qf3 Rc3 Rf2 Kb1 Qg4 Rcc2 Rf3 Rh2 Qf5 Rce2 Rh7 Rd7 Re7 Rh7 Re8 Rdf7 Rd8 Ra8 Rb8 Qg8 Rb5 Rb8 Bh6 Qgc8 Bg7 Q8b7 Bf8 Qa8
n2Qq1Qr/4b1KB/3nBp1B/1kPbQ2N/r1Rr4/1QRN4/3B1Nn1/1R5q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 a5 Ke4 a4 Kf5 d5+ e6 a3 e4 f6 Kg6 g4 c4 a2 b4 g3 h4 g2 b6 d4 e5 d3 b5 d2 b7 Bd7 h6 Nc6 b8B Qc7 h5 Na7 b6 Qd8 e7 Bb5 h7 Kd7 e8R Kc6 b7 Bg7 h6 Qb6 e6 Nc8 e7 Qa7 Bd3 Ba6 Rh4 Bb5 Na3 Qa4 Rb1 a1Q Nc2 Qb3 Nh3 g1N Nb4+ Kd7 c6+ Ke6 c5 Qaa2 c7 Kd7 Nf2 Ba6 Rc4 Qba4 Qb3 d1R Bd2 Nh3 Bc2 Nb6 Be4 Ke6 c8B+ Qd7 Bg3 Qa1 b8Q Bb7 Bgf4 Ra4 Rd8 Bf8 e8N Na8 Ng7+ Ke7 Nh5 Bd5 Qe5+ Qe6 Rd7+ Ke8 Bc2 Be7 Kg7 Qc6 Bg5 Nf4 Ra7 Ng2 Be6 Kd8 Ra6 Qe8 Rd6+ Kc7 Be4 Bc6 Rd3+ Kb7 Rdc3 Bd5 Bc2 Bd8 Be4 Ne7 Bg6 Nc8 Bc2 Rf8 h8Q Be7 h7 Nd6 Qg8 Ka7 h8Q Kb7 Bc1 Rd4 Bh6 Kc7 Bh7 Kb7 Na2+ Ka6 Nb4+ Kb5 Bcd2 Qc8 Rb2 Qh1 Rb1 Rd8 Qe8+ Qc6 Qhg8 Rb8 Qd7 Rf8 Qd8 Qe8 Qf7 Rh8 Qf8 Qh2 Qg8 Qh1 Nbd3+
NnB1k3/2QQ4/1q2PR2/3BK1Qr/b2BQNR1/2p3rq/3n1b1R/2bN2qR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg3 f5 h4 c5 d4 a5 b4 c4 e4 g4 Kf4 g3 e6 a4 b6 a3 h6 g2 b7 a2 b5 Qd7 b6 Bg7 h7 Ra7 e5 Nh6 d6 Ra3 d5 Ng4 h5 Nf6 e7 Bf8 h6 Qc7 d7+ Kf7 e8B+ Ke7 d8R Rg3 d6+ Ke6 d7 Ke7 Nh3 g1B Nc3 Re3 Bg2 Qc6 e6 Bg7 Bb2 Re1 Bd5 Rf1+ Ke5 Bc5 Nf4 Rg8 h8Q Qa4 h7 Bf2 Qc2 Qb4 Nd1 Be1 Qe4 Bf2 Bd4 c3 Rg1 Re1 Rg4 Bh6 Rb1 Rg7 Qg8 a1Q h8R Rh1 Rc1 Bg5 Rh2 Qab1 Qh7 Qd3 Qh6 Qh3 Qh5 Bh6 Qg5 Qb3 Bg6 Qb2 Rf8 Rg8 Be8 Qb4 Nd3 f4 Ra1 f3 Nf4 Rg1 Rb1 Rh8 Ra1 Rg3 Rb1 Na6 b8Q Qc5 b7 Qb6 Qc7 Nb8 Rg8 Rh7 Rg6 Kf8 d8Q Bd7 Qdc8 Ba4 Q8d7 Rh8 Qb5 Rh7 Bd7 Ke7 Qbd3 Kf8 Bc8 Ke8 Qef5 Ne4 Rf6 Nd2 Qfe4 Bf8 Rc1 Ba3 Rb1 Rh5 Rc1 Na6 b8N Bb2 Ra1 Bc1 Nd7 Nb8 Qb5 Be3 Rb1 f2 Qbc6 f1Q Q6b7 Qba6 Nb6 Qg1 Na8 Qc6 Rh1 Qb6 Rb2 Nb1 Rbh2 Bf2 Qg7 Nd2 Qbc7 Na6 Qgh7 Nb8 Qhd7+
2q1R1N1/2bB2R1/b1q1P3/1B1n3R/pr1r1QNk/1RNr4/Q1Q1n2B/K4nB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 g5 Kc2 f5 h4 a5 b4 c5 Kb2 g4 e4 g3 h6 g2 d6+ Ke6 d5+ Kf7 b6 Kg6 b5 a4 d7 f4 b7 f3 b6 Kh5 d6 c4 h7 Nh6 e6 Bg7+ e5 Qf8 d8N Ra7 d7 Kg4 h5 Bf6 e7 Rg8 e8B Nc6 h8R Bh4 b8B Qd6 e6 Ba6 b7 Be1 Ra3 c3+ Ka1 c2 Rb3 Bd2 Nh3 g1R Rh7 Bg5 Nc3 Qc5 Bh2 Bd3 b8Q Ne7 Nf2+ Kh4 Rg7 Nhf5 h6 Rg3 h7 Nd5 Nc6 Rb7 d8R Nd4 Be3 Bf4 Ne7 Qc6 Ng4 f2 Bd7 Rb4 Re8 Ba6 Bb5 f1N Beg1 Ne2 Qc7 Rf8 Ng8 Rd3 Qd2 Rf6 h8Q+ Rh6 Qc8 Bc7 Qf4 Rdd4 Qh7 c1Q+ Qb1 Qc2 Qa2 Rh5 Qa8 Re5 Qa7 Re3 Qc5 Red3 Nd1 Qd2 Qcc2 Qe3 Nc3 Qf3 Qe5 Qf8 Qe3 Qfc5 Qf4 Qf8 Ree7 Qb8 Re8 Qc8 N4h6+ Kh3 Bg3+ Kg2 Rh5 Bd8 Ng4 Bc7 Rhg5 Kh3 B3h2 Kh4 Rh5+
N2bQ1Q1/1NBNqq2/1RnP1QrB/1R1p4/Q3b1B1/1n4KR/b3k3/1Rr1r3 b - - 0 1 illegal: No possible last move, all moves rejected
1n4N1/1BN1QPbK/4r3/1bn3QQ/Rq3B1R/2rRBnRb/2k1N1p1/5Nq1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 Kf6 Ke4 a5 f4 e5 c4 g5 h4 a4 b4 d6 b6 g4 h6 g3 b5 g2 c6 a3 c5 a2 c7 Ba6 c8Q Nd7 h5 Qc7 c6 Be7 b7 Bd8 b8B Be7 b6 Bb5 b7 Ra7 h7 Ra3 h6 Ra5 Be3 Ra3 Qh5 Ra7 Rh3 Ba4 Qd8 Ra6 Rg3 Rb6 Nd2 Bb5 Ne2 Qc8 Rd1 a1Q c7 Qa3 Ra1 Qb2 Ra4 d5+ Kf3 e4+ Kg4 d4 Qg5+ Kf7 Kh5 d3 f6 Ke6 Kg6 Nc5 f7 Bf6 f8R Bg7 f5+ Ke5+ Rf6 Qb4 Rd6 Nf6 Qe7+ Qe6 c8N Re8 h8Q Rc6 Bc7 Nfd7+ Kh7 Nb8 Rd8+ Rd6 Rd7 Kd5 f6+ Qf5+ Qg6 Qf2 f7 Qg1 Rd8 Rd7 Bd6 Rc7 Bdf4+ Nbd7 b8N Rc6 Nf3 Kc4 Na6 Kb3 Qgg5 d2 Nc7 d1B Nh2 Nb8 Rd5 Kc2 Rd3 Bf8 Qhe5 Bg7 Qh5 Re6 Q7g5 Rd8 Ne7 Rdd6 Ng8 Rc6 Nc1 Bg4 Ne2 Red6 Qee7 Bh3 Nc1 Rg6 Be2 Rge6 Bf3 Kb1 Ne2 Kc2 Bc1 e3 Nf1 Rb6 Bb7 Rbc6 Nc3 e2 Bce3 e1N Ne2 Bf6 Kg6 Nf3 h7 Nbd7 h8R Nb8 Rh6 Bg7+ Kh7 Ncd7 Qhg6 Rc3 Rh4 Nc5 Q6h5
2BN2NR/5P2/r1b1r2b/qNB1R2b/k1Q3n1/1p1n1Q1n/6K1/1q1RBNQR b - - 0 1 legal: proof: e4 c5 h4 a5 b4 f5 exf5 g5 bxa5 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 g4 b5 c4 e5 f4 d5 Kf2 Kd7 a4 Kc6 g6 h5 f6 b4 g7 h4 a6 h3 a5 e4 f7 b3 g5 h2 f5 e3+ Kg2 d4 a7 d3 g6 d2 f6 e2 a6 e1Q Ne2 Bg4 Nbc3 Qd6 Ng3 Qde7 Qf3+ Q1e4 Nb5 d1B Bd2 Qc7 Be1 Nh6 g8N Qd7 g7 Be2 Rd1 Be7 f8B Qe8 f7 Bg5 Bd6 Kd7 c6+ Ke6 c5 Bh5 c7 Kd7 c8N Nc6 Nce7 Nb4 Nc6 Qb1 Nd8 Nd3 Be7 Ng4 c6+ Kc8 c7 Kd7 c8R Bh6 Bc5 Qe5 Qf4 Qc3 Qc4 Qa5 Rc6 Rh7 Re6 Rh8 Re5 Bf3+ Kh3 Bb7 Be2 Bd5 Nf1 Bc6 Bf3 Rh7 Kg2 Rh8 Ne7 Rf8 Ng8 Re8 Be4 Re6 Bf3 Rb8 a8R Rb6 a7 Ra6 Rb8 Qa3 a8Q Qa5 Rg1 h1N Be4 Nhf2 Rh1 Nh3 Bf3 Be4 Rc8 Bh7 Be4 B7g6 Bf5 Bh7 Qf3 B7g6 Be4 Bh7 Bb7 Be4 Ne7 Bc6 g8Q Qa4 Qg7 Qa5 Ng8 Nf6 Nc7 Ba4 Kg3 Qc1 Nc6 Qac3 Nge7 Qa5 Rh8 Qb1 Nd8 Bb5 Qg5 Ba4 Qge3 Ng4 Kg2 Bb5 Ng8 Ba4 Bd4 Kd6 Qg1 Bb5 Nd5 Bc6 Nc3 Kc7 Rc5 Kb6 Re5+ Qc5 Bdf2 Ka5 Bc8 Qb5 Bc5 Qb4 Nb5 Ka4 Qc1 Qa5 Qc4+
2K3NB/3P1Rb1/2br2R1/Q6B/QnN1krR1/1Qq2p2/b3Qnqq/1NBB4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 c4 d4 a4 g4 c3 b4 a3 d6 h4 b6 Kc6+ e6 h3 e5 Kd5 d7 h2 g6 a2 e7 c2 e8Q f6 g5 Rh7 b7 Qa5 b5 Na6 b8B Be7 e6 Nc5 d8Q+ Bd6 g7 Qc3 b6 Nd3 g6 Ra6 b7 Rh8 Nf3 Nf2 Ne5 Qd2 Nc4 Qh6 Qa5+ Bc5 Qe2 Ng4 Be5 Rd6 b8Q Nf2 Rg1 h1B Qb3 Qh2 Rg4 Rh4 Qea4 Bd7 Bh3 Bc6 e7 Qg2 e8B Ne7+ Kf4 f5 g8N Qh2+ Kg5 f4 g7 Be4 Bh5 f3 Bf1 Bf5 Bf6 Qg2 Be5 Be6 Kf6 Nc8 Rg6 Nb6 Ke7 Rf4 Bf6 Na8 Rg4 Nc7 Be5 Na6 Rg6 Bcd7 Kd8 Nb4 Kc7 Be8 Kb8 B6f7 Kc8 Bc6 Rg4 Ke6 d5+ Kf5 Beb2 Bd4 Bc3 Re6 d6+ Be5 Qd1 Ke4 Be2 Rf6 d7 Rd6 Qd2 Qh2 Bd1 Qg2 Rg6 Qh2 Rf6 Be6 Rf7 Bd4 B1b2 c1Q Qe2+ Qe3 Bc1 Qg2 Ne7 Bed5 g8R Bg7 Rh8 Be6 Rh6 Qh2 Rg6 Bed5 Qd2 Qe2 Ng8 Qf1 Bd4 Qfg2 Bc3 Bf8 Bh8 Bg7 Nba3 Be6 Rb1 a1Q Qe2+ Kd4 Rg4 Qc3 Rb2 Bed5 Nb1 Be6 Qe1 Bed5 Re2 Kd3 Re6 Kd4 Reg6 Be6 Ne3 Ke4 Qe2 Bc4 Qba3 Ba2 Q3b3 Qd2 Nc4+ Qe3 Qd2 Qc3 Qe2+
k6K/2p3Q1/rBr1BR2/NQnnQ2P/NN1qq1B1/5R2/4RRN1/n1q3bb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h6 Kd7 Kf2 a5 Ke3 f5 Kf4 g6 h4 a4 b4 a3 e4 a2 d4 Bd6 h5 Bb7 h7 Kc8 b6 Be7 b5 Ra5 e6 g5+ Ke5 f4 d6 f3 d5 f2 Bc4 f1N Qe2 g4 Rh3 g3 Nc3 g2 Na4 Qd7 Be3 Ra8 Nf3 g1Q Nh4 Nd2 Rf1 Bc6 b7+ Kd8 b6 Na6 b8R+ Qc8 b7 Qh1 d7 a1Q+ Kf5 Qe5+ Kg6 Qc3 e5 Ra7 Kg7 Bd6 Rf2 Ke7 d8N Bb5 Nc6+ Ke8 e7 Kd7 e8R Qb4 Na5 Nh6 Qe1 Rf8 h8Q Rf3 Qg8 Rf8 Kh8 Rf7 Qg7 Ng4 Bb3 Bf1 Rhf3 Bg2 Rf8 Qe8 e6+ Ke7 Rc8 Nf6 b8Q Bh2 Qb5 Kd6 Bb6 Nc5 e7 Qd4 Qe4 Qc6 e8B Ra6 Bd7 Qc1 Rce8 Bh1 Ng2 Bg1 Bg4 Re7 Ba2 Ndb3 Qf5 Rd7 Ree2 Na1 Qfg5 Re7 Rf7 Re6 Qe3 Ng8 R7f6 Ne7 Qe5+ Kd7 d6 Kc8 d7+ Kb8 d8N Ka8 Bb3 Qce4 Ndc6 Rd6 Nb4 Rc6 Bf7 Nd5 Bfe6
k2Rq3/nPn5/Qp1rBNQb/1q6/n1rNR1B1/5N2/qQb1N3/2B1RKB1 b - - 0 1 illegal: No possible last move
2Rb3B/rNN3Qr/b3QnRp/2K1NP1q/NQ2B3/5Qbb/1nbB3k/R7 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 Kf7 Ke3 d5 Kd4 b5 f4 b4 g4 h6 c4 e6 a4 b3 g6+ Kf6 c6 b2 g7 Bb4 c7 Bd7 c8N Qe8 g5+ Kf7 a6 Rh7 a5 Bb5 f6 Kg6 a7 Kf5 c5 Be1 c6 e5+ Kc5 d4 g6 e4 a6 d3 c7 e3 f7 d2 f8B e2 Nd6+ Kg4 c8R Kg3 f5 Qe7 Nf3 Qb7 Qa4 d1B Qb4 Bd3 Rg1+ Kf2 Nc3 b1B Ne5 Qh1 Na4 Nf6 g8Q Nc6 g7 Bbc2 Qe6 Qh5 g8Q Na5 Bg2 Nc4 Bg7 Kg3 Bh8+ Kh2 Be4 Nb2 Bd2 Bh4 Nb7 e1B Rg6 Bg4 Qgf7 Bh3 Qg7 Rb8 a8N Beg3 a7 Ba6 Nc7 Bg5 Nd8 Rb7 a8Q Ra7 Qad5 Ne8 Nb7 Bd8 Qdb3 Nf6 Qf3
rbBk1R1b/RqpP2r1/2b1b3/Rb1RN3/N4n2/BNN2Q2/3n3B/2K2Q1Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 f5 e4 a5 d4 h5 Kd2 f4 g4 f3 d6 h4 d5 a4 g6 a3 g5 f2 g7 h3 e6 a2 e7 h2 d7+ Kf7 e8R Ra4 e5 Ra8 e6+ Kg6 b6 Kf5 b5 Be7 d6 Rh6 g6 Kf6 b7 Rh8 b6 Rh3 Nc3 Rf3 Na4 Rh3 Ne2 Rh6 Nd4 Bf8 e7 Ra6 Nb3 Ra8 Bh3 f1B Ba3 Na6 b8B Rh7 b7 Rh4 Ba7 Nc5 b8N Ne4+ Kc1 Bca6 Bg1 Nh6 g8Q Bfd3 g7 Bdb5 Qf1+ Nf5 Nc6 Rg4 Qh7 Qb8 g8Q Bc8 d8R Nd2 Qd5 Rg7 Qdf3 Qb7 Ne5 Be6 Qh8 Kg5 Rd7 Nh4 Rb8 Ng2 e8N Be7 Nf6 Nf4 Nd5 Bf8 Ndc3 Kf6 Bf2 Be7 Bg3 Bf8 Rg1 h1B Bh2 Be7 Rg5 Bf8 Q3d1 Bhc6 Qdf3 Be7 Qhh5 Bf8 Q3h1 Be7 Q5f3 Bf8 Rb1 a1B Rb2 Be7 Ra2 Bf8 Nd1 Bd4 Ndc3 Ba7 Re8 Bb8 Rdd8 Bg8 Bc8 Be6 d7 Bd6 Rf8+ Ke7 Rff5 Bc5 Rdf8 Bb4 Nd3 Bd6 Rd5 Bc5 Rff5 Kd8 Ne5 Bd4 Rf6 Bc4 Ra5 B4b5 Rgf5 Bf7 Rd6 Bg8 Rd5 Be6 Ra7 Qa6 Nb6 Bc4 Ng4 Bd3 Bf8 Bdb5 Ra5 Re7 Nba4 Bh8 Ne5 Rg7 Ba3 Qb7 Rf8#
2qr2N1/p6Q/B2Qr2Q/1b3KBR/nP1b3Q/6rr/nkNr2N1/3BR1RN b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 g4 h5 f4 e5 g6 c5 g5 h4 d6 h3 b6 h2 f6 c4 g7 c3 g6 c2 d7 Kb3 f7 Ba3 f8Q Bc5 d5 Ba6 b7 Bd4 f5 Qb6 d8Q Be2 d6 Qa5 d7 Bc4 f6 Qd2 f7 Nf6+ Kf5 e4 g8B e3 g7 e2 Na3 e1R Ne2 Nh7 Qde7 Bf2 d8Q Qh6 Rg1 h1R Bg5 Bb5 Ng3 Nf6 Q1d6 c1R Nc2 Nc6 b8R Rh3 Nh1 Nb4 Be2 Rc3 Bd1 Rg3 Rc8 Bb6 Rc5 Nfd5 Bh7 Qh4 g8N Qc4 Qfh6 Nc3 f8N Na4 Ne6 Na2 Nf4 Re6 Ng2 Qc3 Re5 Qc8 Bg6 Rb8 Qeh7 Bd4 Be8 Rb1 Bc6 Rc1 Bb7 Ra8 Ba6 Rb1 Bh5 Rd1 Rb1 Rd2 Rbe1 Rb8 Bd1 Ra8 Q8e7 Rb8 Nf6 Rd8 Ng8 Rb7 Qef6 Rc7 Qh4 Rcc3 Qfh6 Rh3 Rc5 Rcg3 Rd5 Kc4 b4 Kc3 Rc5+ Kb2 Kf4 Re5 Be7 Re6 Rh5 Bd3 Bg5 Bb5 Kf5
n3bNn1/3n1bQ1/R7/BRrQnR1r/2BN4/pqB3N1/B1Q1K1Pb/4Q1k1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 f5 d4 h5 g6 c5 b6 a5 b7 f4 g7 a4 d6+ Ke6 d5+ Kd7 b5 h4 b6 c4 Bd2 f3 Qc2 f2+ Ke2 h3 Nc3 h2 Nf3 Rh5 Nd4 Na6 b8R Qe7 b7 Qf7 Rg1 h1N e6+ Kd8 d7 Ke7 d8N Kf6 e7 Ke5 e8B Be6 d6 Nc7 d7 Ra5 Ra3 Bd5 N8e6 Na8 d8B Bd6 Nf8 Rc5 Ba5 Be6 Be1 Kf4 e5 Kg3 Ne4+ Kh2 Ng3 c3 Bd2 Bd7 e6 Bc7 e7 Qb3 Bf7 Be8 Be6 Bf7 e8Q Be5 Qd3 c2 Bdc3 Bd6 Qc4 Bf4 Qd5 c1N+ Kf3 Be5 Bc4 Nd3 Rf1 Bf4 Qec6 Ne5+ Ke2 Be8 Bf7 Nd7 Qg6 Bd6 Qc2 Bc7 Rc8 Be5 b8Q Bf4 Raa1 a3 Rc6 Be5 Qb4 Bd6 Ra6 Bc7 Rfb1 f1B+ Ke3 Be2 Rb2 Bf3 Rf1 Nf2 Rbb1 Be4 Ke2 Ng4 Rf5 Nge5 Rb2 Kg1 Be6 Ngf6 g8Q Bb8 Qg7 Ng8 Rg5 B4g6 Rf5 Rc8 Qbe7 Rc5 Qh4 Qb7 Rb5 Bgf7 Qde4 Qd5 Ba2 Qb3 Bc4 Ng4 Qf3 Bf4 Qd5 Nge5 Nf1 Bh2 Qhg3 Qa4 Qe1 Qb3 Ng3#
2n2bb1/Bn2NQRB/3r1rq1/k2NQrN1/3R2PR/N1p3b1/2B3K1/1Q1Q2b1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 c5 d4 Kc7 g4 Kb6 b4 h5 d6 e5 g6 a5 g7 e4 f6 c4 f7 a4 d7 e3+ Kg2 h4 f5 c3 d5 a3 d6 e2 f6 e1B Nf3 a2 Be3+ Kb7 b6 Rh5 b5 Qe7 d8R Nh6 g8B Qe6 d7 Ra5 Bd3 Qc6 Na3 Nf5 Bh7 Nd6 Bc2 Rd5 Ng5 Bg3 Rb1 a1B Rb2 Bg7 f8N Na6 f7 Nc5 Nfe6 Bd4 f8Q Ra6 Rb3 Bb2 Nc7 Rf5+ Nd5 Bc1 Qf7 h3+ Kg1 h2+ Kg2 Bd2 Rg8 Bg7 Rb4 Bf8 Rd4 Bc1 Bg1 Be3 Rg7 Bef2 d8Q+ Bd7 Qde8 Nc8 Qe5 Qg6 Ne7 Be6 Nd5+ Ka8 b7+ Ka7 b8N+ Nb7 Qe8 Bg8 Qf7 Raf6 Nc6+ Ka8 Nce7 Ka7 b6+ Ka6 Nh3 Ka5 Ng5 Nc5 b7 Be3 b8Q Nb7 Bf2 Rd6 Rg1 h1R Re1 Rh6 Rh1 Rdf6 Rh4 Rd6 Be1 Bg1 Bf2 Qh5 Be3 Rhf6 Bf2 Qg6 Be3 Nd8 Qbb1 Nb7 Re4 Rfe6 Ba7 Ref6 Rd4
5r2/1n1Bb3/RNBQK3/3N4/bq2QpR1/RR1NbBnk/1P4rQ/r1Bb4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 c5 d4 a5 g4 h5 e4 h4 g6 c4 d6+ Ke6 g5 c3 d5+ Kd7 b6 a4 e6+ Ke8 Ke5 a3 g7 f4 b7 c2 e7 Kd7 g6 h3 Nc3 h2 Nh3 a2 Qf3 Nh6 g8R Qc7 e8B+ Kd8 g7 Qc6 d7 Ke7 d8R Qa4 Bc6 Be6 d6+ Kf7 d7 Kg6 Be2 Na6 b8N Qb4 Nf2 Kg5 Nd5 Kh4 Nd3 Nc7 Kf6 Bf5 e5 Bg4 e6 Qa4 e7 Na6 e8B Nf5 Ke6 Be7 Qe4 Qb4 Bf3 Kh3 Rg1 Bh5 Rg4 h1B Rf8 Ra7 g8Q Ng3 Rf6 Rb7 Qg7 Rf8 Rc8 Bg2 d8Q Bf1 Nd7 Nc5+ Ke5 Ra7 Rb8 Nb7 Ke6 Be2 N7b6 Bd1 Bed7 Be8 Qc7 Ra3 Qd6 Rb3 Bd2 c1B Rfg6 Ra3 Qgd4 Rc3 Qg1 Rc2 Be3 Rg2 Rf6 Bd2 Rfg6 Bc3 Bc1 Bd2 Ra8 Be3 Ra3 Rh8 Rb3 Rg8 Rb1 a1R Rf6 Ra7 Ra1 Rf8 Raa3 Ra5 Rc3 Ra6 Rab3 Ra1 Ra3 Re2 Rcb3 Rg2 Rf5 Be2 Ba4 Rg8 Bc8 Qb5 N5b4 Qc6 Ra5 Qc3 Ra6 Rf8 N4d5 Bd1 Bb5 Qb4 Ba4 Bb5 Bd7 Bc4 Bac6 Bb5 Rg5 Ba4 Rg6 Nf5 Rg4 Ng3 Qh2+
Q2n1b1b/b1Bb2k1/R5Q1/1BqQK2R/4P2R/1R2r1BN/Q1r2pN1/3nN2n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg3 f5 h4 Kf7 d4 c5 b4 a5 e4 g4 Kf4 a4 e6+ Kf6 h6 c4 h5 c3 d6 c2 e7 a3 e8Q g3 d7 a2 h7 g2 h6 Ra5 d5 Qc7+ d6 Bg7 d8Q+ Ne7 b6 Bd7 b5 Rf8 h8N Nc6 b7 Rg8 b8Q Ne5 b6 Bb5 h7 Bf8 d7 Qc6 b7 Qb6 Nd2 Nc4 Rh4 Ra3 Nh3 g1B Qa7 Rg2 b8R Kg7 Ng6 Nc6 h8R Qc5 R8h5 Nb2 Nf3 Re3 Qd5 Nd1 Ne1 Ba4 Qda5 Nd8 Ke5 f4 Bb5 f3 Qa8 Rh2 Ba3 c1N Ngf4 Ne2 Nfg2 Ng3 Rb6 Nh1 Bb4 Qc4 Bd6 Qc5 Ra6 Bf2 Rb1 Bg1 Rb3 a1B+ Kf5 Bc3 Bg3 Bf6 Ngf4 Rc2 Nfg2 f2 Qe6 Bh2 Qd2 Be5 Qa5 Bb8 Qd2 Ba7 Ke5 Rc4 Qa2 Rc2 Qe8 Bd6+ Kf5 Rce2 Qg6+ Kf8 Bc4 Rc2 Be5 Be7 Bd6 Be5 Be2 Bh8 Bg3 Bc6 Bd3 Bd6 Bb5 Be7 Qd6 Kg7 Ke5 Bf8 Qe6 Nb7 d8B Bd7 Bc7 Nd8 Qg6#
N1Qrn1Nk/1N2R2n/rQbNK3/1b1Q1p2/2BR4/b3Bq2/2Rn2P1/2b2R1B b - - 0 1 illegal: Other
2R1rb2/r2q2R1/3QN2Q/B1BkP1n1/1rp4n/2R1Qb2/B1Q3r1/1N1b1RNK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg2 c5 d4 f5 e4 g5 b4 a5 h4 g4 d6 Ke6 d5+ Kd7 b6 f4 b7 a4 b5 a3 e6+ Ke8 b6 a2 e7 Kd7 h6 g3 h5 Qe8 h7 Ra5 h6 Ra3 Bc4 Rb3 Ba3 Nf6 Qc2 Ng4 Rh3 f3+ Kh1 Rg8 h8Q f2 h7 Na6 b8Q f1B b7 Nh6 e5 Qf7 e8R Rb4 Qa7 Be2 b8Q+ Bb7 Rc8 Bd1 Qf6 Qe6 h8R Nf5 Qh6 Nh4 Rh7+ Qf7 Rg7 Nc7 Bb3 c4 Qae3 Ba8 Qbb6 Ne6 Qbc5 Ng5 Qcd4 Rb6 Bc5 Rb4 Nd2 Bg4 Rf1 a1R Nb1 Bd1 Ba2 g2+ Kh2 Rh8 Qe1 Ne6 Bb3 Nc7 Nf3 Ra7 Ba2 g1R Qdd3 Rg2+ Kh1 Rf2 Ng1 Rg2 Qd4 Bc6 Rc3 Ne6 Qee3 Be7 Qdd2 Rd8 Qdd3 Ng5 Qdd4 Ke8 d7+ Kf8 Qdd2 Re8 d8N Bb7 d6 Bbf3 d7 Bd6 Ne6+ Ke7 d8B+ Kd7 Nd4 Bf8 Bc7 Qe7 Ne6+ Kc6 Qd8 Qd6 Qe7 Kd5 Ba5 Qd7 Qd6+
N5r1/Q2RQ1nN/bb2n1BB/1p1nNR2/3B1R2/1q1r4/bP3Q1K/Rn1kB3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 exf5 g5 hxg5 d4 a5 d3 cxd3 Kd7 d4 Ke8 d5 Qd6 Rh2 Qc6 Rh1 Qb6 axb6 Bg7 Qa4 Bh6 Qd1 Bf8 d4 Kd7 f4 Kd6 Kf2 e5 Kg3 c5 f6 a5 f7 h5 g6 c4 g7 e4 f5 c3 b7 e3 f6 h4+ Kh2 h3 g4 c2 g5 e2 g6 e1Q Be3 c1N Qa4 Bf5 Nf3 Ra7 Nbd2 Nb3 Ne5 Be6 Bd3 Nd7 Rf1 Nb6 Rf5 Nh6 g8Q Nc5 g7 Qd1 b8B+ Rc7 Qh7 Rg8 Qc2 a4 Bf2 a3 Be1 a2 Ba7 Be7 f8B Rd7 f7 Rd8 Rf4 Nf5 Be4 Bc8 Bd3 Ne6 Ndc4+ Kc7 Qg2 Bc5 Qf2 Qb3 d6+ Kb7 d5 Ka6 d7 Be3 d6 Nd5 Rd1 a1N Nb6 Nc2 Ra1+ Na3 Na8 Bb6 Bb1 Nb4 Be4 Ka5 Bc2 Ka4 Be4 Re8 d8R Ba6 Rd7 Rc8 Bb1 Rc3 Be4 Nd5 Bc2+ Nfd4 Bg6 Rd3 Rf5 Qa2 Rf4 Kb3 Rf5 Nb1 Rf4 Rh8 g8N Ng7 Nf6 Nde6 Rf5 Rg8 Rf4 Ne8 Bh6 N8g7 f8R Qa3 Ne8 Qa4 R8f5 Qa2 Nf6 Qa3 Qg1 Kc2 Qd4 Kd1 Qf2 Bd8 Bd4 Bb6 Rf7 Qb3 d7 Ba5 d8Q Bb6 Kh1 h2 Rd7 Re3 Kg2 h1B+ Kh2 Rd3 Qc7 Ne3 Qa7 Bd5 Bg5 Bc4 Qhh4 Nd5 Bh6 Qc3 Nh7 Ba2 Qf6 Qb3 Qe7
5nQK/3B1R1B/4R1bN/Qp1r1B2/P1NRN3/1qr2kB1/rb1Qb1rN/4n3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 Kf4 c5 a4 h5 d4 b5 g4 h4 a6 c4 g6 c3 Kg5 e5+ f6 h3 f4 h2 g7 e4 Kg6 c2 f5 e3 a7 e2 g5 e1R f7 Nc6 f6 Rh4 Bh3 Qb6 Qd2 Nh6 Kh7 Be6 g8N Re8 a8B Na5 g6 Rd1 g7 Bg4 Na3 Rf1 Nf3 Bh5 Bf5 Rg1 Kh8 Re7 Nc4+ Kc7 Bc6 Ng4 Bcd7 Rg2 Rd1 h1B Nh6 Nb3 g8B Nh2 Bgh7 Qe6 d6+ Kb7 d5 Nd4 Qa5 Bg6 Bf4 c1R Bg3 Rh5 Rd2 Rc2 Re1 Rc3 Rf2 Re8 Rff1 Be7+ f8Q Qe3 f7 Ne6 Qg8 Nf8 Re2 Qd3 Re6 Bf6+ Qg7 Qb1 Rd1 Qb3 Rd4 Ng4 Nh2 Ne3 Nf3 Nc2 Nh2 Bh4 Qg8 Ne1 N6g4 Bg5 Nf2 Bc1 Ne4 Rc8 Be8 Rcc2 d7 Ra2 d8Q Bb2 d6 Rc5 d7 Rd5 Re5 Kc6 Qg5 Rh3 Qgd2 Re2 Re7 Bf3 Re5 Rg2 Re7 Ne6 f8R Be2 Rff7 Nf8 Re6+ Kb7 Ned6+ Kc6 d8N+ Kc5 Bf2 Rc3 Bg3 Ba1 Bd7 Bb2 Rh4 Rdd3 Ne4+ Kd5 Rfe7 Kd4 Nf7 Kd5 Nh6 Kd4 Ncd6 Kd5 Rf7 Kd4 Qc2 Ke3 Rf4 Rd5 Nc4+ Kd4 Rf2 Bf1 Rd2+ Bd3 Nb6 Ke3 Qd1 Be2 Rd4 Rd3 Bh4 Rc3 Nc4+ Kf4 Qd2+ Re3 N2g4 Kf3 Bg3 Rc3 Nh2+
3Q1Rr1/b6B/qr3N2/P1Q3B1/1Rb1KR2/1B1Nn2B/p2Qbr1k/N1N1b1n1 b - - 0 1 illegal: No proof kernel
1B1r2qR/8/n4b2/Pr1Q1Npk/nRb3N1/2Q2NnB/R1K5/B1bnQBR1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kf7 Kd2 e5 a4 g5 f4 b5 h4 c5 a6 c4 h6 e4 d6 b4 h5 e3+ Kc2 c3 d5 e2 a5 e1B h7 Kg7 h6+ Kf7 f6 Kg6 f5+ Kf7 a7 Qc7 d7 Qf4 d8N+ Ke8 d6 Qe5 f7+ Kd7 f6 Qf4 Nh3 Na6 Rg1 Ne7 Nc6 Ke6 d7 Kf5 d8Q Kg6 Nf2 Be6 Bb2 Bc4 Nd2 Nc8 Nf3 Nb6 Ra2 Rb8 a8B Kh5 Ncd4 Bg7 f8B Na4 f7 Bf6 Qd5 Rb5 Ba1 Qb8 Bd6 Qg8 f8R Bd2 Rb8 Bc1 Nf5 b3+ Kb1 b2 Qe1 Bd4 Kc2 b1N Ng4 Bf6 Bf4 Qe6 Rb6 Rd8 h8Q Qg8 h7 Nd2 Bc7 Ne4 Bb8 Nf2 Re6 Nd1 Re4 Be2 Rb4 Bd3+ Kb3 c2 Bb7 Be2 Bc8 Bd3 Qg7 Be2 Qc7 Bd3 Qce5 Be2 Qb2 Bc4+ Ka3 Bg7 Nfe3 Rc5 Ngh2 Bf6 Bch3 Bd2 Qc3 c1N Nf5 Rb5 Ng4 Ne2 h8R+ Kg6 Nfh2 Ng3 Nf3 Bc1+ Qb2 Bd3 Kb3 Be2 Kc2 Bc4 Nfh6 Kh5 Qbc3 Qg7 Nf5+ Qh7 Nh6 Qg8 Ng4+
B2bbn1B/nKB1RnRN/2QPN3/4NrQ1/2b3R1/k4Bn1/1Q2p2q/3N1r2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 b4+ Kb6 g4 h5 d4 c5 f4 e5 g6 a5 f6 h4 d6 a4 Kd5 c4 g7 c3 g5 e4 f5 h3 f7 a3 g6 h2 d7 a2 f6 e3 Bb2 c2 Be2 c1N Nc3 Rh6 Qc2 Ra6 Bf3 e2 Nd1 Rh7 Qc6+ Ka7 Bc3 Qe8 d8Q Ra3 b6+ Ka6 b7+ Ka7 b5 Nh6 g8B Nf5 b6+ Ka6 g7 Rh5 Qe7 Nd7 b8B Nd3 Bc7 N3e5 Rb1 a1N Rb4 Ka5 b7+ Nb6+ Kc5 Nc2 b8Q Bd7 d5 Ng3 d6 Rf5 Rg4+ Nb4 Qed8 Be7 f8N Rb3 f7 Rb1 Ne6 Rc1 f8N Qh5 Bh7 Be8 g8R Bf6 R8g7 Nf7+ Bd5 Be7 Nf3 Rb1 Rg1 h1B Ne5 Qh2 Bf3 Bh4 Qg5 Bg2 Qe4 Ka4 Qc6+ Ka3 Bg6 Bh1 Nh7 Nd7+ Kb5 Nf8 Kb6 Bg2 Kb7 Bh3 Bh5 Ra1 Bh1 Bg2 Bd4 Bd5 Re4 Bc4 B5f3 Nh8 Re7 Nf7 Rg4 Rc1 Ng6 Ra1 Bh8 Rc1 Ne5 Ra1 Qb5 Nc6 Bhg2 Na7 Qc6 Rc1 Qg7 Rf6 Ka8 Ba2 Rg6 Qh3 Nb2 Nf5 Bh5 Qc3 Qf3 Be1 Rd7 Qe3 Qfb7 Rc3 Nd1 Bh4 Qd5 Qg3 Qb2+ Ka4 Qh6 Bc4 Rg7 Rf3 Qc5 Rf1 Bb7 Ng5 Bhf3 Qh2 Rg4 Ng3 Qd5 Rf5 Qc6+ Nb5 Kb8 Nf7 Ba8 Be7 Kb7 Bd8 Qa2+ Kb4 Qg5 Na7 Qa1 Kb3 Re7 Kb4 Qd4 Ka3 Qb2#
Nn3R2/rnNBN1r1/2P2Q2/1b1R1b2/2Qq1p1R/2Qr4/1B3R1K/1rbBkB2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 h4 Ke4 b4 g5 b6 a5 c6 f5 b7 d5 e6 g4 b5 f4+ Kh2 a4 e7 a3 e8N d4 c5 a2 c7 d3 b6 d2 h6 Ke3 c6 Kf2 e4 Na6 b8R Qd6 b7 Qd3 h7 Qf3 h5 Ba3 h6 Nc5 e5 Qd3 e6 Bd7 c8B Ne7 Nc3 Ra6 Qa4 d1B Nd5 Rg8 h8Q Ne4 h7 Ng5 Ndc7 Be2 Nf3 Qd2 Na8 Qd4 Ne5 Ng6 e7 Bf5 Nec7 Ne4 e8B Ke1 Bed7 Rg7 Qc4 Nf8 Ng6 Nd6 Ne7 Ra7 Rb1 a1R Rb5 Ra2 Rd5 Rd2 Bb2 g3+ Kg2 Nf7 Rh4 Nd8 Kh1 g2+ Kh2 Rg5 Qe5 g1R h8Q Rd3 Qhf6 Rg7 Qe3 Bh7 Bg4 Bf5 Bh5 Nd7 Bf3 Nc5 Bd7 Na6 Rc8 Nb8 Bg4 Na6 b8R Nb7 Qh3 Rg6 Rg8 Rg7 Rbf8 Nb8 Rgh8 Bd1 Rhg8 Ba4 Bd1 Bb5 Qf3 Rf7 Rg2 Rg7 Ba1 Bc1 Rf2 Rb3 Qg3 Rb1 Qgb3 R1g3 Bb2 Rd3 Qbc3+
k3n1B1/n1R1b3/1rp2Pqn/4b1Q1/Q3bRr1/NNB1Kn2/2Q5/QB1NN1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 d4 e5 b4 a5 f4 h5 g4 c6 d6 e4 b6 h4 g6 a4 g7 a3 b5 h3 f6 e3 d5 a2 f7 h2 f5 Bb7 g5 Kc8 g6 Qe8 d7+ Kd8 Bb2 Ra6 Bc3 Ra3 Qc2 Bb4 f8R Ra8 Nf3 Ra4 Rg1 h1N Na3 Ra5 Ne1 Bc8 b7 Kc7 d8N Bc5 b6+ Kd6 Ne6 Rh3 Nd4 Ra6 Nb3 Kd7 d6 Ne7 g8N Nf2 g7 Rh4 Nh6 Rg4 g8B Qg6 Bg2 Bb4 Be4 Bc5 Rd1 a1B Rd4 Bb2 Rf7 Kd8 f6 Bf5 d7 Nc8 Kf3 e2 Ke3 Na7 Rh7 Rg2 Ng4 Be7 Bd3 Ba1 Rf4 Be4 Rf7 Nh1 Rg7 Ng3 Nf2 Bb2 Nd1 Nf5+ Kd2 Nh6 Ke3 Rg4 Rf7 Ra4 Rg7 Na6 b8Q+ Nc8 b7 Nc7 Rf7 Rb4 Qa8 Rb6 b8Q Ne8 Qe5 Ba1 Qc5 Kc7 Qa4 Kb8 Qg5 Na7 d8Q+ Kb7 Qdd4 Ka8 Qd2 Bb2 Bb1 Ba1 Qc2 Bb2 Ng2 e1N Qde5 Nf3 Ne1 Bd6 Rc7 Be7 Bd2 Bc3 Qea5 Be5 Qac3 Nh2 Qa1 Nf3 Bc3
r3Qr2/1n1r1n2/1P5N/BBR1Q1Q1/3bK3/2RQNp2/1Rb1krbB/RN5q b - - 0 1 illegal: No possible last move, all moves rejected
2nb2Q1/R7/1p2RN2/QBQbP3/3B1b1N/N3QB1K/knrrqR2/bN3r2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e6 Ke7 Kf2 Kd6 Kg2 Kc5 h4 Kc4 d4 c5 e4+ Kb4 a4 f5 e7 g5 e8N c4 e5 c3 a6 f4 h6 c2 a5 Kb3 a7 g4 h5 g3 h7 Nc6 d6 Nge7 d5 Nf5 d7 Qf6 d8Q Qh6 d6 Qg6 d7 Ncd4 a6 Qg4 h6 Bb4 Qd2 Be7 Qe3+ Kb4 Qc7 Nb3 d8Q Na5 Rh2 Be6 Bb2 Rc8 a8N Nc4 a7 Bd5+ Nf3 Nfd6 Nb6 Rf8 Bc3+ Kb3 h8Q Rf6 h7 c1B Qd4 Rh6 Qg8 Bb2 Ra2 Ba1 h8R Nb2 Nc4 Bh4 Qde7 b6 Qe3 Rf6 Rh6 Rf8 Qeh7 Bd8 Re6 Rf5 Qce7 Rc5 Qc7 Nc8 Nf6 Rg5 Ra5 Rh5 Nca3 Ka2 Bd4 Rc2+ Be2 Rh3 Qc5 Rh4 Kg1 g2 Bb5 Rh3 Nh4 f3 Qhd3 Rg3 Qdc3 Rh3 Rh1 Rh2 Qcd2 Qh5 Kf2 g1B+ Kg3 Rg2+ Kh3 f2 Rh2 f1R Ra4 Re2 Rf2 Bh2 Ra6 Bf4 Qa5 Red2 a8B Bh1 Ra7 Qe2 Bac6 Bf3 Be8 Bb7 Bh5 Bd5 Bf3
BR1NB2q/3nQ2p/2KbQ1b1/1r2RQ2/N1kB1r1r/4n2R/4Pb2/1QNb2B1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 c5 Ke4 a5 d4 c4 b4 f6 g4 c3 d6 Ke6 d7 a4 b6 c2 g6 a3 g7 a2 d5+ Kf7 b7 Nh6 g8Q+ Ke7 e6 Kd6 g5 Be7 b5 Kc5 b6 Na6 b8B Nf7 d6 Kb5 Kd5 f5 b7 f4 g6 f3 g7 f2 Nh3 Ne5 Nc3+ Kb4 Ba7 Nc4 Qf8 Nb8 g8Q Kb3 Bg2 f1B Bg1 Ra4 Nf2 Ne3+ Kc5 Rd4 Nd3 Rh4 Bb2 Qe8 d8Q Bd7 Rc1 a1R Rh3 Raa4 Ra1 Bc6 Qb1 Raf4 Ra5 Ba4 Kb6 Kc4 d7 Bd6 Re5 Bb3 Nc1 Ba4 Bc6 Bg2 e7+ Bd5 Qf6 Bf7 Qf5 Bb3 Qgg6 Qf8 Qgf6 Bg6 Na4 Qg7 Bg2 Re8 Bh1 Qh8 Bd4 Rf8 Bc6 Rf7 e8B Re7 Re4 Re5 Qde7 Ra5 d8N Rb5+ Ka7 Nd7 b8R Bb4 Re5 Be1 Ba8 Bf2 Na2 c1B Ka6 Bb2 Nc1 Ba3 Qb6 Bd1 Kb7 Bc5 Kc7 Ba3 Qbf6 Bc5 Kc6 Bd6 Q6e6+
rr1R4/4bpB1/3BnR2/1PR2Nb1/b3qNk1/1n1B2Q1/1Q4Qb/1R1KN1rB b - - 0 1 illegal: No possible last move, all moves rejected
B1b4N/1krP4/1NN1B1pR/2B1b3/Q2q3r/2r3Qn/b2RBRK1/Q1r2Nn1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 c5 f4 Kc7 Kf2 b5 a4 e5 d6+ Kc6 a6 b4 f6 e4 a7 c4 f7 b3 a5 e3+ Kg2 c3 d5+ Kb7 f5 g6 f6 b2 a6+ Kb6 h6 e2 h5 e1R d7 c2 h7 Bd6 f8R Re3 f7 Qe7 d8N Bg3 d6 Qe5 d7 Bf2 h6 Nf6 Ne2 Rc3 Ng3 Be1 Nc6 Ne8 Nd2 b1B Nc4+ Kc7 Be2 Qe7 Be3 c1R Nf1 Rb3 Bc5 Qf6 Nb6 Bc3 Ra2 Ng7 Rd2 Ba2 Qe1 Bd4 Qg3+ Be5 Rh2 Nh5 Rh3 Rg8 h8Q Rbc3 h7 Qf4 Qf6 Qd4 h8N Rg7 Qfh4 Rh7 Qe4 Rh6 Qb1 Rh7 Qa1 Rh6 Rg8 Rh7 f8Q Rh6 Qff4 Rh7 Na5 Nc6 Rf8 Rb8 a8B Rb7 a7 Rh6 Qe4 Nf4+ Kh1 Rh7 Rh6 Nh3 Kg2 R3c2 Rh5 Rc3 Rf2 Rh6 Rg5 Rh4 Rh5 Nd8 Qc2 Ne6 Nc6 Ng1 Qa4 Ng5 Rh6 N5h3 Nc4 Rb2 Nb6 Rbc2 Bb7 Rf4 Bba6 Rh4 Bac4 Kb7 Be6 Qd3 Bd4 Rb3 Ne7 Rc7 Nc6 Rbc3 Bc5 Qd4 a8B#
rrr1N3/rn1p1KPQ/q1k5/4Q1N1/Nn4b1/RB2B1Bb/N2b4/1R1QR2R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 e5 Kf3 a5 Ke4 h5 b4 a4 g4 a3 c4 a2 f4 h4 f6 h3 Kf5 e4 Kg6 h2 b6 e3 b5 e2 c6 e1R c5 Re5 b7 Qb6 f7+ Ke7 f5 Ra6 f6+ Ke6 c7 Ra7 c6 Rh3 Nc3 Bc5 f8Q Re2 f7 Nh6 Qh8 Be7 f8R Bb4 Nf3 Bd6 Re8+ Be7 Be3 Na6 b8B Qa5 b6 Rg3 b7 Reg2 Bc4+ Qd5 Bb3 Kd6 Kg7 Rd2 g6 Qh5 g5 Nf5+ Kf7 Qh6 g7 Nb4 g6 Bg5 g8Q Bf4 Rb1 a1R Ng5 Ra8 g7 R1a7 Qgh7 Rg2 Ra1 Rd3 Ra4 Rc2 Na2 Rd4 Re4 Kc5 Ra3 Nd6+ Ke7 Rb2 Qe8 Kb5 Kf8 Rc4 Qe5+ Rc5 Bc1 Bd2 Ree1 Bc3 Be3 Bd2 Rhf1 h1B Kg8 Bf3 Rh1 Ne8 Kf7 Bg4 Bf2 Ra4 Bg3 Bh3 Ba7 Qd6 b8R+ Bb7 Bb6 R4a7 c8N Ba6 c7 Kc6 Rb7 Be2 Rb8 Rc3 Be3 Beg4 Nb6 Qh6 c8N Nd6+ Kf8 Rc4 Na4 Nb7 Nd6 Rc5 Ne8 Qe6 Qh4 Qc4 Qh5 Qa6 Qh7 Nd8 Ref1 Nd5 Bc2 Rbb5 Nd6 Kc7 Re1 Rb1 Rb5 Rc6 Rc5 Rbb8 Bb3 Nb7+ Kf7 Nb4 Rc1 Rc4 Rb1 Rc6 Nc5 Kb6 Ne8 Rcc8 Na4+ Kc6 Rhg1 Nd5 Rgf1 Nb4 Rh1
Nr2rnQk/2P2K1b/p2R2Q1/1N2r1b1/4B1Rb/q1n3Q1/4RB1r/B2QRN2 b - - 0 1 illegal: No possible last move
1N1Q3b/p1Nb2Nr/R3B2Q/1QQrbr1P/3BKbn1/N1B5/2R3n1/k4q1R b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 Kd6 d4 c5 b4 g5 h4 e5 b6 g4+ Ke4 c4 f4 c3 b5 c2 b7 g3 h6 g2 b6 Qc7 f6 Na6 b8R Qc5 h7 Ne7 f7 Bh3 f5 Qc6 h5 Ng6 f6 Qc3 b7 Qc8 Bd2 c1B Na3 Nc7 Qa4 Ne6 Bc4 Nef4 Bc3 Bg7 Qb5 Qf8 Nf3 g1B Ng5 Ng2 Ne6 Bf4 Nc7 Bgh2 Ba2 Bd7 Bb3 Qd8 f8Q+ Qe7 Qc8 Qf7 Ra2 Rd8 h8B Qf8 f7 Bf6 Bg7 Bhg3 Bh6 Bh8 Bg7 Bh2 Bd1 Bhg3 Bg4 Bh2 Be6 Bhg3 Kf5 e4 Raa1 e3 Ke4 e2 Ra2 Qe7 f8Q Ne5 Bf6 Ng4 Qh6 Rf8 Rb2 Rf7 Qcf8 Rg7 Rc8 Bh2 b8N Rh7 Bg7 Be5 Qf5 Bhf4 Rf8 Qh4 Rf6 Qe1 Rg6 Qf1 Rf6 Ke7 d6+ Kd8 d5 e1R+ Re2 Rd1 Rb2 Be8 d7 Ke7 d8N Kd6 Qe2 Kc5 d6 Ba4 d7 Rd5 Qa6 Bb3 Bd4+ Kb4 Qd6+ Ka4 Qc5 Bc4 Bc3 Bb5 Rg6 Bd6 Bgd4 Bde5 Nf7 Bc6 d8Q Bb5 Nd6 Bd7 Ra2 Kb3 Nde8 Ne1 Rah2 Ng2 Ng7 Ka2 Qb5 Qc1 Qff8 Qf1 Qfc5 Qc4 Rb1 Qf1 Rb2+ Ka1 Rh1 Be3 Bg8 Bc1 Ra6 Bcf4 Nc6 Rb8 Be6 Rb6 Nb8 Rbd6 Bf7 Rf6 Be6 Rf5 Rc2#
1b2R1b1/1q3nk1/1QrB2NN/N6r/1B4K1/N1QPQpR1/1r1QBR1r/4n1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 a5 Kf3 g5 h4 f5 b4 Kf7 e4 c5 d3 c4 h6 a4 e6+ Kf6 d6 a3 b6 c3 b7 f4 h7 c2 d7 a2 e7 Kg7 e8R Kf6 e5+ Kg7 e6 Nh6 h5 Bc5 e7 Bf2 b5 Nf5 h6+ Kg6 b6 Nd4+ Kg4 f3 Ne2 Bg3 Rg1 Ra5 Qd2 Be5 Ba3 c1Q Ng3 Nc2 Bb4 Nc6 b8Q Qc7 b7 Ne1 Na3 Nd8 Be2 Nf7 Nf5 Bg3 d8N Be6 Rb1 a1R Rb2 Ra2 Nc6 Qb1 Rc2 Rb2 Qa7 Bd6 b8B Qb7 Rg3 Ra6 Na5 Rc6 Qb6 Be5 Kh3 g4+ Kh4 Kf6 B8d6 Qc1 Rd8 Ba2 e8Q Bf4 Qee3 Kg6 Rg1 g3 Kg4 g2 Re8 Bd5 Be7 Bb8 Bed6 Rg8 h8Q Ba2 Qhc3 Rh8 h7 Bd5 Rh1 g1R+ Bg3 Qa1 Nh6 Rg2 Rg1 Rh2 Bgd6 Bb3 Rg3 Qc1 Qc4 Kg7 Qcc5 Ng2 Qc4 Qg1 Qcc5 Ne1 Qc4 Rg8 h8N Ba2 Ng6 Rh8 Ng8 R8h5 Nh6 Ng2 Rc1 Bb3 Rf1 Ne1 Qcc2 Nh8 Rf2 Bg8 Qb3 Nf7 Qbc3+
6QB/4r1R1/bRq1R3/N1Q1n3/b4P1B/2b2kp1/1rQnN1N1/1RqBb1KB b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 h4 Kf6 b4 Ke5 f6 Ke4 h6 d5 b6 g5 b7 a5 h5 e5 h7 d4 c6 a4 f7 g4 h6 g3 b5 a3 c7 d3 c5 a2 c6 Bc5 f8R Be3 b6 Qh4 Nc3+ Kd4 Nd5 Ke4 Rb1 a1B Be2 d2+ Kf1 Ra6 Qc2+ Kd4 Rf6 d1B Nf4 e4 Re6 Bc3 Ng2 Nd7 b8R Bb4 b7 Bc3 f4 Ra2 Ba3 Qg5 Be7 Qh5 Bh4 Qd5 Bf3 Qd6 Ne2+ Kd5 Bg4 Bed2 Kg1 Ngf6 Rh2 Rg8 h8Q e3 h7 Rg7 Qg8 Re7 h8B Ne4 Bf3 Ne5 Bh5 Bd7 c8B Rb2 c7 Ba4 Bd7 Qc6 c8Q Be1 Bde8 Nd2 Bf3+ Ne4 Beh5 Ra2 Rb6 Rb2 Rh1 Bb5 Ra8 Ba6 b8N Nc4 Ra7 Ne5 Qc1 Ba4 Qc2 Re8 Rg7 Re7 Nc1 e2 Bhg4 Qd7 Nc6 Qb7 Na5 Qc6 Qcf8 Kd4 Qf5 Nd2 Qb8 Nec4 Ne3 Bf2+ Kg2 e1Q Qg8 Qe2 Rd1 Be1+ Kg1 Ne5 Bh5 Ng6 Bh1 Qg4 Qb5 Ne5 Ng2 Qe2 Na2 Qg4 Rb1 Qe2 Nc1 Qd1 Qcb3 Qc2 Bd1 Ke4 Ne2 Kf3 Qc5 Qc1 Qc2
N1q2R2/1nqQn1NQ/2BB2rb/1R2QPB1/1nbK4/6p1/k2nR2r/NQ1B4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 d5 h4 g5 b4 e5 f4 a5 h6 g4 h5 g3 c6 a4 c7 e4 h7 e3 h6 e2 f6 Ke6 b6 e1N f5+ Kd6 b5 Kc5 b7 a3 f7 a2 b6 Ra4 Be2 Qd6 Nf3 Qe6 Ng5 Qe8 Nd2 Bd7 c8B Rf4 Rb1 a1N Ne6+ Kc6 Ng7 Kc5 Rb5+ Kd6 Rh2 Rg4 Nb3 Qd8 Bg5 Na6 b8B+ Kc6 b7 Nf3 Bd6 Ne7 b8Q d4+ Kd3 Qb6 c4 Be6 c5 Kd5 Bd7 Nc2 Na1 Nd2 Qe8 Qa7 Qb1 Qc7 Bd1 Qc8 c6+ Nc5+ Ke2 Kc4 c7 Nb4 Bc6 d3+ Ke3 Bd5 Qd7 Nb7 Re2 Kc3 Bc5 Bc4 Bd6 Rg8 h8Q Rh4 Qh7 Rh2 Nh5 Rg6 Ng7 Qb8 c8N Qc7 Nb6 Qc8 Qg8 Qc7 h7 Qc8 Ne6 Bh6 Ng7 Qc7 h8Q Qc8 f8R Qc7 Qa2 Qc8 Qa5 Kb2 Na8 Qc7 Qb6 Ka2 Qge6 Qc8 Qd5 Na6 Rc5 Bb3 Bc2 Nc4+ Kd4 d2 Qe5 d1Q+ Bd2 Qb8 B6e4 Qc1 Bd1 Qc8 Bg5+ Nd2 Qh7 Qc2 Rd5 Q2c7 Qb4 Bc4 Rb5 Qa5 Bc6 Qac7 Qc3 Nb4 Qd3 Be6 Qde4 Bc4 Qb1+
r4NK1/6n1/1q1bnP2/NR1bRQ1b/2Nk2B1/1RpQ3Q/b1Bq3B/1r4BR b - - 0 1 illegal: No possible last move
q2qQ1N1/1kb4P/4B1p1/BKn2RRr/5Q1R/1N1N1BQ1/2rNb1n1/q2q2R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 d4 c5 Kd2 Kc7 Kd3 f5 Kc4 a5 b4 f4 e4 a4 d6+ Kb6 d5 g6 e6 a3 d7 f3 e5 a2 h6 f2 h5 Ra7 e7 Ra4 e8N Ra7 d6 Ra3 e6 Nf6 h7 Ng8 h6 Ne7 Bh3 f1Q+ Qe2 Qf3 Nd2 Ra8 Nb3 Ra7 Nf6 Rg8 h8N Bb7 h7 Bc8 Nf7 Nec6 e7 Qe3 e8B Be7 Ne5 Rb7 Ngf3 Nd4 Bd2 Nf5 Rag1 a1Q Nd3 Ng7 Be6 Qa5 Rh4 Rf8 Ng8 Nh5 Bc3 Rf5 Nfd2 Ka7 b6+ Ka8 b5 Rc7 B8f7 Qa1 Ba5 Nf4 b7+ Ka7 Qh2 Rh5 Qg3 Na6 b8R Ng2 Bg4 Bb7 Bfe6 Bf3 Qf4 Be2 Bf3 Bf6 Rb6 Qa8 d8R Be5 d7 Rc6 Qg3 Qg5 Rf8 Bc7 Rf5 Qgd8 Rb8 Qd1 Rc8 Qa1 b6+ Kb7 Kb5 c4 Qf4 c3 Rg5 Qf6 d8Q c2 Qe8 c1Q Rd8 Qh8 Rdd5 Qd1 Rdf5 Qhd4 Qg3 Qdd8 Qf4 Kb8 b7 Rc2 Qg3 Nc5 Kb4 Ka7 b8Q+ Ka6 Qf4 Bb6 Qbe5 Bc7 Qg3 Ka7 Qef4 Kb8 Kb5 Ka7 Rd5 Kb7 Rdf5+
rR1R4/1KB2NpQ/Q1Q2bP1/1BBN3b/1n1rQ3/2r1Nq2/1B1r3q/1n2k2R b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 f5 e4 h4 exf5 h3 Qh5+ Kd7 Qh7 Ke8 Nxh3 Ba6 Ng1 Bc8 Qh4 Kd7 Ke2 Kd6 Kd3 Kc5 Ke4 Kb4 f4 c5 g4 a5 d4 e5 d6 c4 Kd5 a4 d7 a3 f6 c3 b6 c2 b7 e4 f7 e3 f5 e2 f6 e1R g5 a2 g6 Qe8 d8Q Ra3 Qd7 Re7 Nh3 Ra8 Nd2 Nh6 Nc4 Re2 Nf4 Na6 Kc6 Rd2 b8B Rg2 d5 Rg4 d6 Rh7 Bc7 Qd8 Ne3 Be7 f8Q Ng8 f7 Ka4 b4 Kb3 b5 Kc3 b6 Rg2 b7 Rh8 b8R Nf6 Ba3 Kd2 Rd1+ Kc3 Qde8 a1Q d7 Qb2 h3 Bb4 Qd6 c1R f8B Nd5 Rd4 Qg5 d8N Qg4 Nf7 Qf3 Qhf6 Qd2 h4 Bg4 h5 Qde2 Qde5 Be7 h6 Nab4+ Kb7 Qb2 Qb6 Bf6 h7 Rg8 h8Q Bh5 Qa6 Qbe2 Re4+ Kd2 Rd4+ Ke1 Bb2 Nc3+ Qe4 Nb1 Bc5 Rc3 Q8c6 Rd8 Qh7 Qef2 Rd2 Qg1 Rd5 Qh2 Rd3 Rd2 Rd7 Re8 Rd6 Re5 Rd7 Red5 Rdd8 R5d3 Nfd5 Rd4 Bb5+
2rq1RnQ/2N1BP1N/k1pQBb2/1RK1n1N1/2R2BQ1/1q1B3q/1q2r1b1/7R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 h5 Kc4 e5 g4 a5 d4 a4 b4 h4 f4 e4 f6 c6 b6 h3 b5 e3 f7 h2 f5 a3 f6 a2 b7 Kc7 d6+ Kb6 d7 e2 d5 e1Q d6 Qe5 g6 Qee8 g5 Rh7 g7 Rh8 g6 Qee7 Nf3 Ra6 Na3 Qc7 d8Q Ra8 d7 Na6 b8Q+ Bb7 Ng5 Nh6 g8R Qd6 g7 Qe5 Qg4 Ka5 b6 Qb2 Nb5 Bc8 b7 Be7 f8N Nb4 Nfh7 Ka6 Rf8 Ng8 Bf4 Nd3 Rc1 a1Q Rc3 Qb6 Qd6 Qd1 b8R Qdc2 Qe8 Qd8 Kd4 Ne5 Kc5 Qbb3 Rc4 Qcb2 Bd3 Ra7 Re1 h1Q Nc7+ Ka5 Rf1 Qh3 Rh1 Rb7 Qeh5 Rb4 Rb7 Ra4 Rbb4 Ra1 Rb6 Re1 Rb7 Re2 Rb8 Nh6 g8B Ba6 Bd5 Ng8 f7 Bf6 Be6 Bc8 Ne8 Ka6 Rb5 Qa5 d8B Bd7 Be7 Qd8 Bef5 Be6 Qhh4 Bd5 Be6 Bg2 Nc7+ Ka7 Qhh5 Qb8 Rd8 Nh6 Rc8 Re8 Nf8 Ng8 Qh8 Rd8 Nd5 Ka6 Nfh7 Qc7 Rcb8 Qd7 R8b7 Ra8 Rb8 Qc7 Re8 Rc8 Rf8 Qd8 Nc7+
1qQ1N1rR/k3p1Nr/n3Q3/2R2Rb1/8/BB2qn2/PQ2b1NB/bK1Nb1Q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kd7 d4 c5 Kd2 Kc7 Kc2 b5 f4 Kb7 a6+ Ka7 h6 g5 f6 g4 h7 b4 f7 c4 h5 g3 d6 g2 d5 c3 h6 Bd7 f5 Qc8 f6 Be6 d7 Qc6 d8Q Qb6 d6 Qd4 d7 Qd5 Nh3 g1B Qc8 Qc5 d8Q Qc6 Bc4 Be3 Qg1 Bd5 Ba3 Bd4 Bb3 Bg7 f8R Qb5 f7 Qb6 Qe6 Bf3 Nf4 Bc6 Ng2 Bdf6 Qdc8 Bb5 Rh5 Bd4 Rf5 Bf2 Re8 Nf6 f8N Rg8 h8B Ne4 h7 Qe3 Rd8 Bd4 Be5 Be2 h8Q Nd2 Bh2 Be1 Rdd5 Rg7 Rc5 Rh7 Kc1 c2 Nc3 Bf6 Nd1 Bg5 Kb2 c1B+ Kc2 Nf3 Qb2 Bcd2 Rc1 Bc3 Kb1 Bcf6 R1c4 Bg7 Rh4 B7f6 Qd5 Bg7 Ne6 B7f6 Ng7 Bfc3 Bc4 b3 Qde6 Be5 Rd4 Bef6 Rd8 Bd4 Rh8 Bdf6 Qc1 Ba1 Qc2 b2 Bb3 Nc6 Qd2 Nb4 Qc1 Rb8 Qd2 Ka8 a7 Na6 Qcg8 Kb7 a8N Ka7 Nc7 Rc8 Qe8 Ra8 Q8c6 Rg8 Nce8 Bf2 Qcc8 Qe5 Kc2 Qb8 Kc3 b1Q+ Qb2 Qe4 Nd6 Bg3 Nde8 Qe3+ Kc2 Be1 Kb1
1Brr4/PRQ1B2Q/rb3R2/Nk3r1Q/2B4n/2qbN1NR/pn2Q2K/2Nq4 b - - 0 1 illegal: No proof kernel
n2R4/P1k5/1N1Br1NQ/2p1b2q/2qq2rN/BRQR1B1N/b1K1n2R/6qQ b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 b5 h4 e5 a4 g5 f4 c5 f6 g4 f7 g3 d6 b4 a6 b3 a7 b2 h6 g2 f5 e4 a5 e3+ Kc2 e2 d5 e1Q f6 Nc6 h5 Qee7 h7 Qe5 h6 Ba6 Nh3 g1Q Rh2 Qgg3 Be2 Rb8 a8N Rb6 Nd2 Kc8 d7+ Kb7 d6 Bb5 a6+ Kb8 a7+ Kb7 Nf3 Nge7 Rb1 Qg8 Nh4 Bg7 f8B Nc8 f7 Qdg5 d8R Bc4 d7 Qh5 Bf3 Ba2 Qh1 Qd4 Bd6 Be5 f8N Qgg4 Nfg6 Rg8 h8Q Ra6 h7 Nb6 Nc7 Na8 Nd5 Rg7 Nb6 Qgg1 Ngf4 Rg4 Nfg6 Qf1 Qg7 Qfg1 h8Q Qf1 Bf8 Kc7 Qhh6 Qfg1 Qd2 Qc4+ Qc3 Qe3 Qh6 Nd4+ Kd1 Ne2 Kc2 Bd6 Re8 Qee5 d8R Qed4 Re3 Bf4 Rd3 Be5 Nd7 Rd6 Nb6 Re6 Kd2 Qcd5 Bd6+ Kc6 Ra1 b1Q Ba3 Qbg1 Rb1 Kb7 Rb3 Qc4 Bf8 Kc7 Kc2 Qdd4 Bd6+
R2k1q2/1bN1R1BQ/Rn2b1q1/bR2B3/Q1Q2rBn/p6q/P4Q2/KnN2N2 b - - 0 1 legal: proof: g4 b5 b4 c5 bxc5 e5 d4 a5 dxe5 f5 gxf5 g5 h3 g4 h4 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 h5 Kc3 d5 Kb2 a4 e4 h4 c4 g3 f4 g2 e6 h3 e7 b4 f6 h2 e5 b3 f7+ Kd7 e8R d4 c6+ Kc7 g6 d3 f5 d2 c5 Qd3 f6 Qc4 e6 Nh6 g7 Qf4 g8Q Bd6 f8Q Ba6 e7 Qg4 f7 Qc4 Ne2 g1N Qh7 Qe4 Bh3 Bb7 Bg4 Nh3 Re1 Na6 Ra8 h1Q Ra7 Qb4 e8N+ Kd8 Qdc2 d1B Bf4 Nb8 Nd2 Nf5 Nf1 Nf2 Rb1 a3+ Ka1 Qf3 Nc1 Nh4 Re7 Bc7 Be5 Nd7 Qce4 Ba5 c7+ Kc8 Qc6 Ne4 Qa4 Nd2 Rb2 Qh3 Ra6 Nb1 Ra7 Bd5 Ra6 Kb7 c8R B1f3 Rca8 Be6 R8a7+ Kc8 c6 Nb6 c7 Ba8 Qfh6 Bd5 f8B Bb7 Bfg7 Rf8 Qd2 Rf4 Qf2 Qc5 Rd2 Qd6 Rd5 Qb4 Rb5 Qd6 Rd7 Qc5 Rd4 Qb4 Re4 Qf8 Re1 Kd7 c8Q+ Ke7 Qcc5+ Kd8 Nc7 Bed5 Bc3 Nd2 Re7 Be6 Qcb4 Ndc4 Kb1 b2 Kc2 Nd2 Qc4 Bb4 Bce5 b1Q+ Kd1 Qa1 Kc2 Ba5 Bd6 Qaf6 Be5 Nb3 Kb1 Nd2+ Ka1 Nb1 Qg6 Qg5 Qh7 Qg6 Ra8+
1QB1KB2/1Np3B1/nbQR4/k3Nq1R/1R1n2n1/1Qq4b/q1P4N/2RrQb2 b - - 0 1 legal: proof: f4 e5 a4 b5 axb5 g5 fxg5 e4 h4 e3 g6 Ne7 dxe3 Nbc6 e4 Nb8 e5 Ng8 g4 a5 g5 Bc5 h5 Ra6 g7 Rg6 hxg6 Bf8 Kf2 f5 Kg3 h5 Kf4 d5 b4 Kd7 e4 a4 b6 Kc6 b7 Kb6 b5 a3 e6 h4 Ke5 f4 e7 d4 e8N a2 Qe1 d3 Bb2 f3 Nd6 h3 Na3 d2 Nac4+ Kc5 b6 Kb4 Rc1 h2 Bh3 f2 Nf3 Nh6 g8R f1Q g7 a1N g6 Nd7+ Ke6 Qd3 b8B Qf1 e5 Qh4 b7 Qe4 Ba7 Nb3 b8R+ Ka4 Nb7 d1Q Bc5 Be7 Rd8 Qg1 g8Q Qge3 g7 Ng4 Kf7 Qc3 e6 Qf5+ Ke8 Qdd5 Nce5 Nd4 Bd6 Bf8 e7 Qa2 Bda3 Nc5 Rd6 Rh5 Qd5 Rh4 g8Q Na6 Bb4 Bh6 Qb3+ Kb5 Qf8 Be3 Qh8 Ne2 Qhg8 Bb6 Ba1 Nd4 Qgd5+ Nc5 Qc6+ Ka6 Re6 Nf2 Rh6 Qh5+ Nf7 Qd3 Qd1 Nb5 Kf8 Rd4 e8Q Bg4 Rd8 Rd5 Bg7 Qc3 Qde1 Rd1 Rd4 Bc8 Rc4 Nd4 N7e5 Bg4 Qb8 Qg5 Rg1 h1B Rh5 Bg2 Ke8 Bf1 Nh2 Bc8 Be6 Qf4 Rg6 Qg5 Bd5 Bch3 Be6 Ng4 Bc8 Qf5 Ba3 Na4 Baf8 Nc5 Nd8+ Ka5 Rb4 Na6 Re6 Qc5 Rd6 Qc3 Nb7#
7B/2qp1Q2/3QrBK1/R1b3QB/2b1r1b1/1nNP1NNN/Rr1qRB1k/r7 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 c4 Bg7 b4 Bf8 c5 Bg7 c6 Bf8 b6 Na6 b5 Nc5 Rh5 Nf6 Rh1 Nb7 cxb7 Ng8 Ke2 Kf7 Kd3 c5 Ke4 h5 b8N a5 f4 e5 g4 a4 b7 c4 g6+ Kf6 g5+ Kg7 b6 a3 Nh3 a2 Nc6 c3 b8B c2 b7 h4 Bb2 c1R Be2 Nh6 f6+ Kg8 f7+ Kg7 f5 Qc7 Nc3 Bd6 f8B+ Kg8 g7 Kh7 g8N Ra5 f6 Kg6 f7 Bc5 Be7 Nf5 f8Q Nd4 Nh6 Rb5 Re1 Nb3 Nf5 Rh6 Bf6 Rc2 d3 Rb4+ Ncd4 Rc4 Qc1 Rd2 Ba3 Rb2 Ba7 Rb4 b8Q Ba6 Qd6 Bc4 Nf3 Kh5 g6 Kg4 g7 Rg6 g8R Ra4 Ne7 Kg3 Kf5 Rb4 Qd5 e4 Qf7 e3 Bd1 Kg2 Re2+ Kh1 Bh8 Re6 Rg5 Ra4 Bf6 Rb4 Kg6 Ra4 Rf2 e2 Nf5 e1Q Re2 Rb4 Qf4 Qd2 Qb6 Ra4 Qbd6 Rb4 Rgg2 Ra4 Qg5 Rb4 Nf4 h3 Bb6 h2 Nh3 Bb5 Ba7 Rbe4 Bb4 Bc4 Ba5 Ba3 Bf2 Bc5 Bb6 Bb4 Bbd4 Bc5 Rc1 a1R Rc2 Rbb1 Ra2 Rb2 Rg3 Qc8 Rg4 Qc7 Ng3+ Kg2 Rh4 h1B Rf4 Na5 Rf5 Nb3 Nh4+ Kh2 Rd5 Ba3 Ra5 Bf3 Be5 Re8 Bh8 Bc5 Bef6 Bg4 Re1 Bge6 Bh5 Bg4 Re2 R8e6 Nf3+
3Bb3/B1N3pQ/B4Nnr/3K2N1/2r1R1Qn/Bb2k1P1/rQ5R/1Rb1rrR1 b - - 0 1 illegal: No proof kernel
RQQb1Rn1/1r3R2/1N4N1/Q1nN1k2/1R2N1r1/2K1PrBp/p3B2q/B5bb b - - 0 1 illegal: No possible last move, all moves rejected
3NRnQ1/1b2n3/1R2Rn2/Qr1BN3/QpRrp3/Q5q1/K1NkP2b/1B1b2B1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 d4 Kd7 Kd2 Kd6 Kc3 c5 Kb3 e5 a4 b5 h4 f5 g6 b4 g7 f4 h6 f3 a6 f2 a5 c4+ Ka2 c3 h5 c2 h7 Ra7 h6 Qb6 Bh3 f1B Bf5 Rd7 a7 Nc6 a8Q Rc7 a6 Qc5 a7 Nb8 Be3 Ba6 Na3 Nd7 Rh4 Be7 Nf3 Rb7 Bg1 Ngf6 g8Q Qc8 Re4 Bd3 Rc1 Nf8 Bg6 Kd7 d6 Kc6 d7 Bg2 d8Q Qb8 Qa5 Bd6 Bf5 Bc7 d5+ Kd6 Re3 Rb5 Be4 Kc5 d6 Bh1 d7 Bg2 d8N Bc4+ Ka1 Bb3 Bd5 Ba4 Ba2 Bd6 Bb1 Qc7 Qd3 Qg7 Ka2 Qg3 Ng5 Be4 Ngf7 Bh1 Qb3 Kd4 Qf3 Bb8 a8B Bd6 Bd5 Bb8 Qg7 Rg8 Qh8 Rg4 Qg8 Bg2 h8R Bd6 h7 Rf4 Re1 c1N+ Ka1 Nd3 Ka2 Rg4 Rc1 Nf4 Rc6 Bh1 Rb6 N4g6 Qc2 Rh4 Qb3 Ne7 Nc2+ Kc5 Qa3 Rd4 Qf1 Bb8 Qd1 Bc7 Bb3 Ba8 Bd5 e4 Ne5 Bb7 Rf3 N6d7 Rff6 Bb8 Rfd6 Nf6 Re6 Qe1 Nf3 Bh2 Ne5 Qg3 Qg6 N8d7 Re8 Nf8 h8R Bc8 Qg8 Bb7 Ne3 Bc2 Qdd3 Bd1 Qdb3 Rd3 Qba4 Kd4 Bb3 Kc3 Bd5+ Kd2 Nc2 Rd4 Rh7 Nc6 Rc7 Ne7 Rc4
BNN3r1/4r2b/Q3Nrnn/1p1R1Q1B/1k6/pN2B2K/q2PR3/1Qb2RBb b - - 0 1 illegal: No proof kernel
nQnQb3/8/KB3Rrq/1p3bB1/Q3P1N1/1RQB1Rnp/2N3r1/bNR4k b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 Kd7 d4 f5 Kd2 h5 Kc3 c5 Kc4 h4 Kb5 f4 a4 h3 e4 b6 d6 Ke6 a6 c4 g6 c3 d5+ Kd7 a5 f3 g7 c2 a7 f2 e6+ Ke8 e7 Kf7 e8Q+ Kf6 a6 Be7 g5+ Ke5 g6 Rh5 d7 Qc7 d8B Nf6 g8Q Be6 g7 Rg5 d6 Rg4 d7 Rg2 Qd3 Nd5 Bg5 c1N Ne2 Bf6 Nd4 Qd6 Nc2 Ne2 Ra3 Nc6 Rb3 Ng3 Qgf8 Rc8 a8R Nce7 g8N Rc6 a7 Bf5 Nh6 Bg7 Be2 f1B Ka6 Qe6 Qe3 Nc8 Bd3 b5+ Bb6 Be2 d8Q Bh5 Rc1 Rd6 Qc6 Be8 Qc4 Bh8 Qa4 Nc7+ Kb7 Qf6 Rb8 Qg7 a8R Rg6 Ra7 Na8+ Ka6 Qf6 Rf7 Qd6 Rf6 Bg7 Bh4 Qe6 Qe1 Kf4 Ng4 Kf3 Qc3 Qd6 Rb7 Qf4 Qfd6 Qh6 Bg5 Bh8 Qb8 Bg7 Nge3 Bh8 Rbf7 Kf2 Bf1 Kg1 Ng4+ Kh1 Rf8 Bfd7 Rf3 Bf5 Rf7 Be5 Rf6 Bd4 Qd2 Bb2 Qc3 Ba1 Bd3+
n2n2NB/1Q1QNRN1/2p2pK1/kB4Qn/R2Q1Br1/1r6/1P1q1bNr/4Rb2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 g5 Ke4 a5 Kf5 c6 d4 Kc7+ e6 Kb6 e4 g4 h4 g3 h6 g2 h7 a4 h5 a3 e5 a2 d6 Qc7 d5 Ka5 b6 Bg7 h6 Nf6 d7 Na6 d8R Ne4 b7 Qb6 b8Q Bf6 d6 Nc7 d7 Qb5 e7 Bh4 e8N Qd5 Bb5 Rf8 h8Q Bg5 h7 Be3 Qb7 Bd2 Nf6 Be1 Ng8 Nf6 Nh3 g1R Nc3 Kb4 Nf4 Ra3 Qd3 Qg2 e6 Na8 e7 Ka5 e8N Rb3 Ncd5 Nh5 Qg3 Qf2 Qd4 Qh2 Be3 Qd2 h8B Rg2 Rf1 Bf2 Ng7 Rh2 Rfe1 Re8 Qg5 f6 Kg6 Re4 Qde5 Reb4 Rf8 Rc4 Nde7 Re4 Rac1 a1N Rf7 Nc2 Ra1+ Ra4 Qc5 Nd4 Ra3 Ne6 d8Q+ Nac7 Qdd6 Nd8 Qcd5 Bh3 Qd7 Bf1 Ng2 Na8 Ra2 Rb4 Raa1 Rg4 Qd4 Ra2 Bf4 Ra3 Rac1 Rag3 Rc4 Rb3 Ra4#
1b2n1b1/5rBN/1P1QBp1N/Q1qrB2k/2R4p/n1nQN3/rNR1R2Q/5K2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 e4 c5 b4 a5 d4 h5 g4 f6 d6 Kf7 g6+ Kg7 g5 c4 d5 a4 d7 c3 d6 c2 e6 a3 e7 a2 e8Q h4 e5 Ra7 e6 Rh5 e7 Nc6 Nf3 Qb6 d8Q Bb7 d7 Qg1 Nbd2 Qb6 Nc4 Ra8 Nb2 Ra5 Bc4 Ba8 Rh2 Qc7 Kf1 Kh8 g7+ Kh7 Qd5 Nh6 g8N Qc8 g6+ Kg7 Ng5 Nd4 Nh7 Ng4 Bh6+ Kh8 Rc1 Ra4 Qa5 a1N d8Q Nf5 Qd3 Ra2 Qdb6 Qe6 Qeb8 Qe5 e8R Nd6 Ne7 Bd5 Nf5 Nf2 g7+ Kg8 Qc5 Kf7 g8N Kg6 Bg7 Nfe4 Ngh6 Bg8 Rc8 Be7 Re2 Ne8 Ne3 Bd6 Be6 Qc3 Qcc7 Rd5 Qcb6 Kh5 Qba6 Bc5 Qh2 Ba7 Qad6 Qc7 b6 Qc4 b7 Bb8 Rd1 c1R b5 Nc2 b6 Na3 Rc5 Rc3 Rdd2 Qd4 Rc8 Rc7 Rc2 Rf7 R8c4 Nc3 Qdg3 Ba7 b8B Qc5 Bc7 Bb8 Qf4 Rd6 Qfd4 Rd8 Be5 Rd6 Qd5 Rdd7 Qc6 Rd5 Qd6
5Nbn/Q1B1bNrp/1BB5/K3Qpk1/n1Q1BN2/1P1Rr2q/4Q1b1/3R1Rn1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 f5 Kb4 d5 g4 a6 e4 d4 c4 d3 e6 d2 g6 Kf6 g5+ Ke7 e5 Qc7 g7 Bd7 b6 Qc6 b7 Nh6 g8Q Be8 b3 Qc8 c6 Qd7 c5 Bg6 c7 Nf7 c8N+ Kd8 e7+ Ke8 c6 Qe6 c7 Qf6 Nc3 Kd7 e6+ Kc6 Na4 Kd5 Ne2 Ke4 Nab6 Bh5 g6 Qg5 g7 Qh6 Nd7 Ra7 Nd6+ Kf3 e8Q Kg4 c8Q a5+ Kb5 a4 e7 a3 Qc5 a2 Bg2 Na6 b8B Qe3 Qa3 Nc5 Rf1 Qh3 Nf4+ Kh4 Qc2 d1B Be3 Bdf3 Rad1 a1N Qe2 Nc2 Qa6 Nd4+ Ka5 Rb7 Qa7 Na4 Bg1 Rc7 Bh1 Rc3 Bc7 Bd5 Be3 Nf3 Beb6 Ng1 Bf3 Bc4 Bc6 Bf3 Be4 Nh6 Qgf7 Bg2 g8R Rg3 Rg7 Rg8 Qe6 Rc3 Rg3 Nf7 Qe5 Nh8 Qf7 Rg7 e8B Be7 Nf8 Rf3 B8c6 Rd3 Rgf3 Kg5 Qfd5 Rc3 Qb5 Bd5 Qbc4 Bg8 Nf7+ Kh4 Rd5 Rd3 Rd1 Re3 R5d3 Kg4 Rff1+ Kh4 Nd6 Kg5 Nf7+
2b2N1r/1Qqr1k1p/Rb1P2nn/3R1N2/p1Q1N1RN/1B1KBQ2/4r1n1/6BR b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 e5 f4 a5 b4 c5 g4 c4 d4 e4 f6 c3 b6 e3 b5 c2 d6 Bh6 b7 Bd7 f7+ Kf8 d5 Qb6 g6 Qd4 f5 Ra6 b6 Bc6 d7 Bg5 d8R+ Be8 g7+ Ke7 f8R Nh6 g8Q Nf7 Nc3 Ne5 Ne4 Bg6 Nf3 Nec6 Nh4 Nd7 b8Q Bf4 b7 Nb6 g5 Qe5 Kd3 e2 Be3 e1R Qf3 Ra7 Rd6 Bf7 g6 Nc4 g7 Be6 Qc7+ Bd7 b8B Nd4 Qb7 Re2 Rd8 a4 Ra6 Bh6 Bg1 Qg3 Bf4 Ne3 Ra2 Ng2 Bfe3 Bg5 Rb2 Qc7 Rb4 Bc8 Rc4 Rf2 Be2 Bf4 Bd1 Re2 Rdd6 Bg3 Rb4 Bf2 Rc4 Ne6 Rb4 Nf8 f6+ Ke8 f7+ Ke7 Rc4 Ng6 f8N c1N+ Kd4 Re1 Bb3 Ne2+ Kd3 Ng3 Rd4 Nf5 Rd7+ Ke8 d6 Nfe7 Qc4 Ng8 Rd5 Nh6 g8N Re2 Ne7 Rc2 Bd4 Re2 Nef5 Be3 Rg7 Bf2 Rg8 Kf7 Be5 Bd4 Bf4 Bb6 Bfe3 Qe7 Qa8 Rd7 Qb7 Qd8 Kc3 Qc7 Kd3 Ne7 Rg3 Ng6 Rg4
1Bbr4/R1RQ2p1/q3nB2/2n1N3/3P3K/bp2r1B1/2Q1BQNN/kQn1b2R b - - 0 1 illegal: No possible last move
1RnqrQ1n/b4bKR/r3Q2B/3Q1B1B/2B2ppq/3N1Q1N/1N1P2k1/5q1R b - - 0 1 illegal: No possible last move, all moves rejected
3nR3/1Qb4B/nB1r1B1N/3r1b1p/2N3qq/2PR1RpR/k5BN/1n3QKQ b - - 0 1 illegal: No proof kernel
2b4B/qN2r2Q/1R1R2r1/3R1Np1/nB1QN3/2bQqB1p/k1bn1PN1/2B4K b - - 0 1 illegal: No proof kernel
N1r2Q2/B6k/2rN1bqp/R1PKpB1R/2n3N1/1q3Q1n/1Rb1RNB1/4Q1q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 Kg7 Ke4 e5 g4 a5 b4 a4 f4 a3 c4 d6 c6 a2 c7 h6 b6 Qe8 g6 Ra4 b7 Qf7 g5 Qf6 b5 Qd8 b6 Nd7 b8R Qe7 b7 Qf6 Qe1 Rb4 Nh3 Nc5+ Kd5 Qd8 Nc3 Rb6 Na4 Rb4 Nf2 Rb6 Rh5 Qe8 Be3 Nb3 Bg2 Bd7 c8N Rb4 Ba7 Qd8 c5 Qe8 Nab6 Nd2 Na8 Be7 f6+ Kf8 f7 Kg7 f8R Ba4 f5 Rb6 Rf6 Rc6 Rf8 Rh7 f6+ Kh8 f7 Bc2 Nh3 Nc4 Nf2 Qd7 Rd8 Qf5 f8Q Bf6 Rd7 Re7 g7+ Kh7 Rd8 Rec7 Qf7 Be7 Rd7 Qg6 Qf3 Bf6 Rf7 Bd8 Rf4 Be7 Re4 Bf6 Re2 Ne7+ Ke6 d5+ Nd6 d4 g8N Nc8 Kd5 d3 Qb1 d2 Qe1 Qe8 g6+ Kg7 Rb1 a1Q Rb5 Kh8 g7+ Kh7 Ra5 Qg6 Ne7 Qa3 Nef5 Qb3 Ne3 d1Q+ Qd2 Qb5 Neg4 Qg1 Qe1 Qb3 g8B+ Kh8 Nf5 N8d6 Be6+ Kh7 Bc8 Ne4 Nd6 Ng5 Bf5 Qa3 Rf8 Qa2 b8Q Nh3 Rg8 Rc8 Rg7+ Kh8 Rb7 Qb3 Rbb5 Kh7 Rb6 R8c7 Qf8 Rc8 Rb4 Qa3 Rb1 Qb3 Rb2
4r1Nb/k2r1B2/1QpBqn1K/3b2RN/2n1R1N1/2b1BqBR/R3pP2/1Q1Q4 b - - 0 1 illegal: No possible last move
q1b1B1k1/1b6/Rp3r2/Q2B3q/KP1bN1N1/RnR1nQ1Q/2pr4/N1B1RN2 b - - 0 1 legal: proof: e4 d5 c4 f5 exf5 g5 cxd5 g4 a4 g3 a5 b6 a6 Bd7 hxg3 Be6 g4 Qc8 g5 Qb7 axb7 Bc8 f4 Kf7 b4 h5 g4 c5 d4 e5 Kd2 a5 Kc3 c4 d6 e4 d5 h4 d7 h3 d8Q h2 g6+ Kg7 f6+ Kh6 d6 a4 d7 a3 f7 Kg7 g5 e3 f5 a2 Nf3 e2 Qd3 e1Q+ Nfd2 Qe7 Bg2 Rh5 f6+ Kh8 Ne4 Ra7 g7+ Kh7 Nbd2 Nc6 b8R Nd4 g6+ Kh6 Qh3 Nf3 Nf1+ Ng5 Ra8 Ra4 Ra6 Bb7 Qa8 Qe8 d8N Qc6 Ne6 Qe8 Nd4 Bc5 f8R Ne7 g8B Nf5 f7 Kg7 Nc2 Nf3 Rg1 Qb5 Rc8 h1B f8Q+ Kh8 Kb2 c3+ Kb3 Ne3 Qf4 Rh6 Bf7+ Kg7 Be8 Kg8 g7 Bd4 Qe5 Qe2 Qa5 Rf6 Rc7 Qb5 Rc6 Qh5 Rc7 Kh7 g8N+ Kh8 Rc4 Bc8 Nh6 Kh7 Ng4 Kg8 Rb1 a1Q Rb2 Qb1 Na1 Ra2 Rc6 Qd3 Rf2 Rc2 Ka4 Nd2 Rf3 Nb3 Rc4 Rd2 Qc6 c2 Rc3 Nd1 Re3 Qe2 Bf3 Qd5 Rg3 Qg2 Re1 Qf7 Qcd5 Ne3 Qf5 Qh5 Qf4 Qe2 Bg2 Qd5 Qf3 Qa8 Qff5 Qb5+ Ka3 Bd7 Nef2 Nc5 Rb3 Nd5 Rgc3 Ne3 Bb7 Be4 Qff3 Bd5 Ne4 B7e6 Rd3 Bc8 Rdc3 Bde6 Bd5 Bb7 Bdc6 Bec8 Bg6 Nd7 Be8 Qh5 Ka4 Nc5+ Kb5 Rh6 Ra3 Nb3+ Ka4 Rf6 Bd5+
8/1KB4Q/p4p1Q/RR1kNbN1/1n2NPB1/qb2qRrN/RqBr1n2/6Q1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 Ke2 Kd7 Kd3 e5 Ke4 h5 b4 c5 g4 c4 b6 a6 g6 f6 g5 c3 b5 c2 b7 h4 b6 h3 g7 h2 g6 Nh6 g8B Ra7 g7 Rh7 Nd2 Ng4 Ra5 Nh6 Be6+ Ke8 d7+ Ke7 g8Q Kd6 Nb3 Nc6 b8N Ra8 b7 Ng4 Bf4 c1Q Nc5 Qc3 Bd3 Nb4 Nh3 Nc2 Qg1 Ne1 Bc2 Ng2 Nc6 Qc7 b8R Nh6 d8Q+ Rd7 Bg4 Nh4 Rbb5 Qg3 Qh7 Ng6 Qdh8 Qb6 f3 Ne7 Q8g7 Nhf5 Qgh6 Ne3 Ra2 Raa7 Rba5 Qb4 Rb5 Qb2 Rba5 Kc7 d6+ Kb6 d5 Nd1 Qh4 Rd8 d7 Rg8 d8R Rd7 d6 Nd5 Q4h5 Nb4 Q5h6 Rgg7 Rg8 Rd8 d7 Nf2+ Kf5 e4 Ke6 e3 Kd6 e2 Ne5 e1Q Rf8 Re8 d8N Qe3 Ndf7 Bf5 Nfg5 Ree7 Rb8+ Rb7 Qc1 Rg8 Rd1 h1B Rd3 Bg2 Rda3 Bf1 Rc3 Bc4 Qg1 Bb3 Rd3 Ka7 Rc3 Rbg7 Rbb5 Rd8+ Ncd7 Ka8 Kc7 Rg6 Nc5 Rd2 Kb6 Kb8 Rd3 Kc8 Rc3 Kd8 Ka7 Rg7+ Kb6 Ke7 Kb7 Kd6+ Ned7+ Kd5 Bc7 Qee5 f4 Qa3 Re3 Qeb2 Ne5 Qf3 Rc3 Qe2 Rg3 Qe3 Rf3 Nc6 Nge6 Qed4 Bh5 Rg3 Neg5 Qe3 Bg4 Nb4 Nce4+
4B2R/1kR3Qp/4b1b1/p1b5/2BNPBq1/2N2rR1/nnqr1Q2/KQ2RN1B b - - 0 1 illegal: No possible last move, all moves rejected
1qRb4/1rBPQK2/p3p3/1bq2B2/3k1QR1/nR2R2n/1NB4N/1QQN1br1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 h5 f4 a6 g4 c6 d4+ Kb6 b4 e6 d6 h4 f6 c5 g6 c4 d5 c3 f5 c2 g5 h3 d7 h2 f7 Bc5 f8Q Nf6 g7 Qc7+ d6 Rg8 d8N Qa7 d7 Rh8 g8B Rh4 g6 Rf4 g7 Qb7 Ra3 Rf3 Nf7 Ra7 Nc3 Rf2 Bh3 Rf1 Bf4 c1Q Qe7 Qb2 Nd6 Be3 Qc1 Bc5 Nf3 Be3 Rg1 h1B Nc4+ Kc7 b6+ Kc6 Bh7 Ra8 g8R Bf2 Nh2 Ne4 f6 Bh4 f7 Qf2 f8Q Ng5 Kf6 Qc5 B3f5 Ra7 Nb2 Nh3+ Kf7 Bg2 Ncd1 Kd5 b5 Nc6 Bc7 Qb8 b7 Na5 b6 Kd4 Re3 Nc4 Qh6 Na3 Qf4+ Be4 R1g4 Rg1 Qe8 Bd8 Qe7 Kd5 Rh8 Bg2 Bc2 Bf1 Bhf5 Qa8 b8R Bb7 Re8 Bc6 b7 Bcb5 Rc8 Qb8 Reg8 Qa8 b8Q Rb7 Rb3 Ra7 Qb6 Qb8 Rgg3 Rb7 Rge3 Ba4 Rg4 Bab5 Qa5 Nc4 Qaa1 Na3 Bce4+ Kd4 Qa2 Qc6 Qab1 Qc5 Bc2+
kQ3n2/r1Rp1R2/r3N2N/P1Rn1Q2/1B2q1n1/4N1q1/b3K1Bp/1NRQ2bB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 a4 b5 g4 e5 f4 h5 c4 e4 g6 e3 c6 b4 g5 h4 c7 h3 a6 e2 a5 b3 a7 b2 c5 h2 g7 Nf6 g8Q Ba6 c8R Nh5 g6 Nf6 c6 Bb7 c7 Nh7 f6 Be4 f5 Bd5 g7 Bg2 f7+ Ke7 f6+ Ke6 Bd2 Kd6 Nh3 Kc6 Nf2 Kb7 Bb4 Bf3 Bg2 Bc5 f8Q Nc6 f7 Qe7 Ng4 Bg1 Ne3 Qe4 Qc5 Nf8 Qf5 Ne5 Kd2 Bf2 Rf1 Rh6 Qh8 Ra6 g8N Ng4 Nh6 Bg1 Bh1 Ng6 f8N Bg2 Ne6 Nf8 Qfh7 Bh3 Rf7 Bg2 Qf5 Bf3 Na3 b1N+ Ke1 Nc3 Rc1 Nd5 Nb1 Qe5 Kd2 e1Q+ Kd3 Qh4 Kd2 Be4 Ke2 Qeg3 Bg2 Bc2 Bh1 Bb3 Bg2 Rb8 a8B+ Ka7 Bc6 Ba2 Qhe5 Ra8 Bh1 Nb6 Bcg2 Qe7 Qb5 Nd5 Rc5 Qf6 Rc1 Qd4 Rc5 Qe4 Rc1 Rc6 Qb8+ Ka6 Rd8 Ra7 c8R Rb6 R8c5 Rc6 Qbe5 Kb7 Rc8 Rca6 R8c6 Ka8 Qc7 Qge5 Qb6 Qd6 Rc7 Qg3 Qb8+
NnnKb3/2Rpr2N/B2P3k/2B1QN1N/4QQ2/3Bpb2/n6R/2R1qQqr b - - 0 1 illegal: No possible last move
4k1BB/3pQN1q/1nrpqQ2/1q2R2P/1R1r1R1K/1b2B2B/1N1NQ2b/2R2n2 b - - 0 1 illegal: Other
B1qBB3/p1NQP2R/2p1n3/B1Q2N2/b1QRrr1q/3n4/2kNQ2b/KR5r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 e4 g5 d4 f5 Kd2 f4 Kc2 g4 b4 f3 Kb2 g3 d6 Ke6 b6 g2 h6 f2 b5 Bb7 h5 Be7 d5+ Kf7 h7 Na6 h6 Kg6 d7 Qb8 d8Q Nc5 e6 Nf6 d6 Bc6 d7 Rf8 h8B Na6 h7 Bd6 b7 Nc5 e5 Kf5 b6 Ke4 Nf3 g1R Bg5 Be7 Qe2+ Kd5 Nh4 Kd4 Bg2 f1Q Nd2 Qf5 Rb1 Bd5 Ka1 Qc8 b8Q Kc3 b7 Bd6 Bg7 Be4 h8Q Nd5 Qg8 Nd3 Qe8 N5f4 d8R Qd7 Qc8 Qe7 b8N Nc5 Na6 Rb8 Rh2 Bc2 Ba8 Qh3 Q8h5 c6 Nc7 Rb3 Rd7 Qf7 Bd8 Rh1 e7 Qc4 e8B Rb4 e6+ Rf6 e7 Ba4 Qg5 Ncd3 Qc5 Kc2 Qgd5 Rf8 Bc3 Qa6 Qg8 Re4 Qgc4 Qg3 Rh3 Ne6 Rh2 Rf2 Nf5 Qg5 Rh4 Bh2 Rd4 Rff4 Qd7 Qc8 Rh7 Qh4 Ba5#
2R1N3/rnBq3B/b4KQk/3B4/1NN1Q2n/1Rr1pRQ1/bR2BbpP/7b b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Ke3 b5 Ke4 e5 c4 g5 f4 Kg7 a4 d6 a6 g4 a7 g3 a5 b4 f6+ Kh7 f7 b3 c6 b2 c7 Bh6 f8R Kg7 c5 Na6 c6 Bb7 Kf5 d5 c8R e4 c7 d4 Qd3 Bg5 h6+ Kh7 Nc3 b1B Na2 Bh4 Nf3 Qe8 Nb4 Qa4 Be2 Ba2 Rb1 Bg5 Rb3 Nf6 Ne5 Qe8 Nc4 Rb8 a8B Nc5 a6 Ne6 a7 Ba6 Bd5 Nd7 a8N Bb5 Bd2 e3 Qe4 d3 Rhb1 Ba6 R1b2 Nd8 Bc3 d2 Be5 Rg8 Rf6 Kh8 h7 Kg7 Bd6 d1B Be5 Qf7 h8Q+ Kf8 Qh7 Rg7 Qh6 Bh4 Qg6 Kg8 Bd6 Nf8 Ke5 Kh8 f5 Qd7 Rf7 Rb5 f6 Rb6 Rb8 Rb5 c8B Nb7 Nc7 Rc5 Ne8 Bc2 Bc7 Bcb1 Qd4 Be4 Ra8 Bg2 Qde4 Bh1 Rb8 g2 Qg3 Qg4 Bf5 Ng6+ Ke6 Kh7 Rc8 Kh6 Rf8 Bg5 f7 Nh4 Ke5 Bf4+ Kf6 Qh3 Bh7 Qd7 Rh8 Bd6 f8Q Bf4 Qd6 Rc6 Qe1 Bg3 Rf8 Bf2 Q1b1 Rc5 Qg3 Rf7+ Ke5 Rg7 Rf3 Re7+ Kf6 Rc6+ Ncd6 Rc3 Nc4 Nc5 Bd6 Qb5 Qf5 Ra7 Qbe4 Nb7 Bc7 Qd7 Qfg6+
1R1B1R1r/K4Rb1/1B2knB1/p1BN2N1/1QQb1np1/2bq4/2b3rP/N4NQ1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 g5 Kd4 a5 Kc5 e5+ d6 e4 f4 g4 b4 c6 d4 e3 b6 e2 h6 e1B d5 Nf6 h7 Bh4 b5 Nh5 b7 Bg3 f6 Qe7 Kb6 c5 f5 c4 f7 c3 f6 c2 Bd3 Qe5 Be3 c1B Nh3 Qg5 Rf1 Qh6 Nf4 Bh4 Nd2 Nc6 b8R Ng7 Bc5 Nh5 Bg6 Be7 f8N+ Kd8 f7 Bg3 d7 Rg8 h8N Bd6 N8e6+ Ke7 d8B+ Kd7 f8Q Ba6 Qf7+ Ne7 Nd4 Bh4 N4b3 Be5 d6 Bc8 Qc4 Bcb2 Nf7 Be1 Ng5 Bbd4 Nd5 Re8 Rf7 Nf4 Nf1 Bg7 Ra4 Qh7 Na1 Rf8 Ra3 Ba6 Rf3 Bec3 Qc1 Bb7 Qe3 Rh8 Qg1 Ra7 Rf8 Ng8 Bc7 Ba8 Rf2 Rb7+ Ka6 Nh3 b6 Nf4 Bd8 Rc7 b7 Nf6 Ka7 Rc8 Bc7 Qh3 B7b6 Qd3 Rf3 Re8 Rf2 Re2 Rf3 Kc6 d7 Rg2 d8B Kd7 Rc8 Ne2 b8Q Nf4 Rf2 Bc6 Rf3 Ba4 Rf2 Nh3 Qf4 Bc2 Qd2 Nf4 Rb8 Bb2 Qdb4 Bbc3 Nh7 Ke6 Rf7 Nh3 Rf5 Nf4 Rf8 Ne8 R5f7 Nf6 Ng5+
b2r1QQ1/2RR4/1K3Qp1/3Q1b2/kB5N/2n1NBP1/q1rRprrN/1n4BB b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 g6 h4 b4 h5 b3 h6 Bg7 hxg7 Nh6 axb3 Ng4 b4 Nf6 b5 Ng8 Ke2 Kd7 Ke3 a5 Kd4 h5 Kc5 e5 d4 h4 b4 a4 f4 a3 f6 h3 f7 h2 f8B a2 d6 e4 d5 e3 g3 e2 f5 c6 b6 Qc7 b5 Bb7 f6 Rh3 f7 Nh6 g8B Ra5 Be3 Qd8 Bg2 Bc8 b7 Qf6 Nd2 Qe6 Ndf3 Na6+ Kb6 c5 b8N+ Kd8 Nc6+ Kd7 Nb4 c4 Nc2 c3 Rc1 a1R Nh4 Nc5 Ngf3 Ng4 Bg1 Ne5 Ne3 c2 Be7 Ra7 f8Q Ne4 Qd3 Qf7 Rd1 c1R Rd2 Rc2 Qc3 Nc6 Qf6 Qe6 Bf7 Rd1 Qg8 Ra8 Bf8 Ne7 Be8+ Kd8 Bc6 Nc3 d7 Ra4 Ne5 Ra3 N5g4 Nb1 Bf3 Rac3 Ka7 Kc7 d8R Bd7 b6+ Kd6 b7 Kc5 d6 Kb4 Rc8 Qa2+ Kb6 Bf5 b8Q Rc5 Bce4 Ka4 d7 Rf1 d8Q Rd5 Qdd6 Rf2 Rc7 Rg2 Qde5 Rd8 Qed5 Rf2 Nhg2 Rh7 Nh4 Rf7 Rd7 Rg2 Qf4 Nc6 Bc5 Na7 Bb4 Nb5 Q4d6 N5c3 Qdf8 Qa3 Bf2 Qa1 Rc1 h1B Nh2 Qa2 Bg1 Bg4 Q6e7 Rf4 Qef6 Bf5 Bg4 Rf1 Bgf3 Rff2 Qfe6 Nb5 Qdc6 Rc4 Bh5 Rc5 Nhg4 Rh2 Qef6 Rc2 Qb7 Rb2 Rcc7 Rc2 Qbc6 Bg2 Qcc5 N5c3 Qcd4 Bh3 Bh1 Bg2 Qde5 Bc6 Qed5 Rhg2 Nh2 Ba8 Bf3
2b3rB/4NR2/Nq1QPQR1/1B3Q1K/1Br1B3/3QpnN1/1kp3nR/2br3r b - - 0 1 illegal: No possible last move, all moves rejected
BRr2B2/2N2KNq/1B1P1n2/2r1R1QQ/Np1kb1R1/5n1Q/1n1p1R2/b4Qn1 b - - 0 1 illegal: No proof kernel
B7/1RNbnNR1/r1Qp1B1Q/7N/2nB4/RqbQ3p/rP1N3K/1r1rk1Q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 Kf7 c4 e5 f4 a5 Kf2 h5 Kg3 h4+ Kh2 a4 g6+ Kf6 g7 a3 g5+ Ke7 b6 e4 f6+ Ke6 c6 Kf5 g6 e3 c7 Ke4 b7 a2 f5 e2 c5 e1R f7 Qe7 f6 Qe6 c6 Rh7 Be3 Bc5 f8Q Na6 b8B Qf5 f7 Ba3 Bd4 Qf3 Bg2 Rh6 Ne2 Nf6 g8Q Bb4 g7 Nd5 Nf4 Re3 Nd2+ Kf5 Nh5 Kg4 Qb1 Rf6 Qd3 Nb6 Qd6 Re2 f8N Nc4 Ne6 Re1 Bba7 Rh6 Bf6 Bc3 Bad4 Rb1 Re1 h3 Re5 Na3 Rb5 Nc4 Rb7 Nb4 Bd8 Qe2 Rb6 Rg1 Be7 Qd1 Bg5 Bb7 c8Q Nd5 c7 Bc6 Qa6 Ne7 c8N Qc2 Nc7 Rd1 Q6g6 Qa4 Nd6 Qb3 Nf7 Bb5 Q6h7 Rc6 Be4 d6 Bgf6 Ba4 Rb5 Rb6 Rb4 Bd7 Qh6 Ra7 Qb5 Ra4 Ba8 Rba6 Qc6 R4a5 Rb1 a1R Rb7 Ne3 Ne4 Kf3 Nd2+ Kf2 Rc1 Ke1 Rb1 Nc4 Rc1 Qb6 Rc2 Bb4 Rc3 R5a2 Ra3 Bc3 Qgh8 Qb3 g8R Nb6 Q8g7 Rab1 Qg4 Nc4 Rg7 Qc2 Qgg5 Qb3 Qg1#
BB4B1/BKN1QRp1/1b1R3k/qPRn2n1/b4Q1p/Q1NN3r/2n5/r1Q3n1 b - - 0 1 illegal: No proof kernel
3BNRBr/QbRN1P2/4b3/Q1b1b1Bn/p1N5/1p1q3n/1N1R1Qr1/4KBk1 b - - 0 1 illegal: No proof kernel
1NN2B2/nNBp1p2/K1Bn2Q1/b4nR1/2Q1q1n1/QPQ2rNk/b1r4R/1R6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Kg4 e4+ Kg3 c6 g5 e6 a5 b6 a4 Kb5 a3 c4 g4 h6 a2 c7 Qe8 b3 Bb7 c8Q Bc5 e7 Ba3 c5 Qd8 e8R Qg5 e5 Ra7 e6 Nf6 e7 Bd5 h7 Ng8 c6 Nf6 b7 Bd6 h5 Qd2 h6 Ne4 c7 Ba3 Ne2+ Kf2 Qc2 g3 Rg8 g2 e8Q g1N Qf8 Nf3 Bg2 Be6 Ng3 Bf5 Rg5 Nc6 b8N Bb4 Nc3 Nh4 Na4 Ba5 Rb1 a1N Ba3 Qe2+ Qc4 Qd3 Rh2 Nc2 Qa6 Ne3 c8N Ng4 Nc5 Rc7 Nb7 Rg8 h8B Nd6+ Kc5 Qc2 h7 Qe4 Be5 Na7+ Qc6 Rg6 h8Q Rf6 Qhg7 Bh7 Qg6 Rf3 Bf4 Nhf5 Qe7 Bc3 Kb6 Be1 Ka6 Ba5 Q6b5 Rc5 Qc1 Rcc3 Qc4 Rc2 Qef6 Ndb5 Bc7 Nbd6 Nf1 Kg1 Qfc3 Kf2 Bb4 Kg1 Qa3 Kf2 Nd2 Kg3 Nf1+ Kf4 Qcf6 Qd4 Qc5 Rd3 Qa4 Ra2 Qfg7 Ne7 Bc6 Rf3 Qcb5 Qe5 Qbd3 Ndb5 Qe6 Be4 Qf8 Nf5 Ra1 Rd2 Qc3 Bb1 Qg7 Ba2 Qa3 Rc2 Bf8 Nbd6 Rb1 Qd5 Qgg6 Qe4 Nd2 Kg3 Qec4 Ne7 Re2 Nf5 Nf1+ Kh4 Ng3 Kh3 Rh2+
4nRQb/k1Nn3K/2B3r1/2n1qb1p/2N4P/B3QBq1/2q1Rp2/Q1RNN1Q1 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 f5 fxe5 b5 a4 a5 axb5 f4 g4 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Qg5 Nh3 Qe7 Ng1 Qd8 Kf2 Kd7 Kf3 g5 Kg4 c5 Kh5 Kc7 b4 Kb7 e4 g4 d4 c4 h4 a4 f6 c3 d6 g3 b6 f3 b5 h6 Kg6 g2 d5 f2 f7 h5 e6 a3 e7 c2 e8Q a2 d7 Nf6 e5 Ne4 d6 Nc3 e6 Rg8+ Kh7 Qg5 d8N+ Ka8 b7+ Ka7 d7 Na4 e7 Nc6 b8N Qg4 b6+ Ka8 b7+ Ka7 Ne6 Nb4 d8Q Nb6 Nc7 Qf3 Q8d4 Bh6 f8R Nd3 Nd7 Qe2 Ba3 c1Q Ne5 Bf4 Nc4 Qe5 Nc3 Nc5 Be2 Nd5 Nf3 g1Q Ne1 Qg3 Bf3 Rg6 Qe3 Qb2 Rc1 a1N Qf7 Qa2 e8B Nb3 Bc6 Bf5 Qg8 Qc2 Qdd4 Bh6 Nd1 Bg7 Qa1 Bh8 Rg1 Qh3 Rg4 Qhg3 Rd4 Nd7 Rd2+ Nbc5 Re2 Qb1 Ne6 Qc2 b8Q+ Ka6 Qd8 Nc7 Qdg5 Ne8 Nc7+ Ka7 Qg4 Qh3 Qg2 Qhg3 Qg1
1Q6/n1K1Bp2/N1R2Pq1/3pkbr1/2QNB2r/1RB2rq1/4nQ1Q/R1B3nN b - - 0 1 legal: proof: e4 d5 a4 c5 g4 b5 axb5 h5 gxh5 e6 d4 Nf6 dxc5 Bd6 e5 Ng8 exd6 Qd7 Bg5 Qc7 Bc1 Qd8 Ke2 Kd7 Ke3 a5 Kd4 g5 Ke5 g4 c4 g3 b4 g2 f4 a4 h4 a3 h6 a2 h5 Qc7 b6 Qc6 f5 Rh7 b5 Na6 b7 Rh8 b8Q Ne7 b6 Qb7 h7 Ra7 h6 Qc7 c6+ Ke8 c5 Qd7 c7 Nb4 c6 Na6 b7 Rf8 h8B Ra8 h7 Nc5 Qd4 Na4 Nc3 Qd8 Rh3 Rg8 d7+ Kf8 Kd6 e5 Bd3 e4 Nge2 g1N Ng3 e3 Nce2 Rg5 Nh1 Nc3 Be4 Ra3 Rg3 Qe8 d8B Bd7 c8R Rb3 c7 Nc6 Be5 Na7 Qd2 Be6 Nd4 e2 Bef6 e1Q Qf2 Nce2 Be5 Rf3 f6 Bf5 Rh3 Qa4 Rg3 Ke8 h8Q+ Rg8 Qh4 Rg5 Qhh2 Qc2 Rh3 Rf4 Rb3 Rh4 Nc6 Qb1 Bc3 Qc2 Nd4 Qd3 Kc5 Kd7 Kb6 Qg3 Be7 Qd2 Nb5 Ke6 Nd4+ Ke5 Rd8 Qd3 Rd6 Nc6 c8Q Na7 Qc4 Qc2 Kc7 Qd3 Rab1 a1R Rc6 Ra3 Ra1 Qc2 Qh8 Qd3 b8N Qb1 Bg2 Qe4 Na6 Qg4 Qb8 Qh5 Rb2 Qg6 Be4 Rb3 Bcb4 Rd3 Rb3 Rf3 Bc3
Q2Nn2K/1N1q1BB1/R2Np3/bQ1p1q2/r1qb1R2/6kQ/4P1b1/1RBN1n1Q b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 c4 h4 c3 g6 Bb7 dxc3 Be4 c4 Bb7 c5 Bc8 g4 a5 g5 Ba6 g7 Bb7 h5 Ra6 Qd5 Rb6 Qd1 Rg6 hxg6 Bc8 Kd2 d5 Kc3 Kd7 Kd4 Ke6 c4 Kf5 b4 Kg4 Ke5 h5 b6 f5 b5 h4 c6 h3 c7 h2 c5 f4 b7 f3 c6 a4 b6 f2 Nc3 a3 Bh3+ Kg3 Be6 f1Q Bf7 e6 Nf3 a2 Nd4 Bd7 c8N Qf3 c7 Kh3 Nc6 Kg3 Nd6 Na6 b8Q Rh4 c8N Rg4 b7 Qe8 Nd8 Nf6 g8R Bg7 Rf8 Bh6 g7 Rf4 g8Q Ne4 g6 Rg4 g7 Bd2 Qh7 Ba4 g8Q Qd7 Qh5 Nc7 Qh3+ Kf2 Qa8 Bc2 b8B Ng3 N6b7 Nf1 Ncd6 Ra4 Rg1 Qg4 Kf6 Qc4 Kg7 h1Q Kh8 Qhe4 Qa6 Ne8 Qb5 Qf5 Ba7+ Ne3 Bd4 Be4 Bg7 Nf1 Rb1 a1B Rg3 Ne3 Qdh1 Nf1 Rg4 Bg2 Nd1+ Ke1 Rd4 Ba5 Rf4 Bd4 Nc6 Nf6 Ra8 Ne8 Ncd8 Qe4 Ne3 Qf3 Ra6 Kf2 Qh5 Kg3 Nd1 Qfd3 Nc6 Nc7 Qa8 Qf5 Ncd8 Ne8 Q5h3+
4n2q/1bR3np/Q1Bk1r1b/n1N1BB1n/Q6P/RN2p3/6RR/K1Nn1N1Q b - - 0 1 legal: proof: e4 d5 f4 b5 c4 g5 cxd5 b4 fxg5 b3 d6 Nh6 axb3 Kd7 b4 Ng8 b5 Ke8 d4 Kd7 e5 Ke6 d5+ Kf5 d7 a5 Bf4 Ra6 Bc1 Rd6 exd6 Kg6 Kd2 Kf5 Kc2 Ke5 b4 c5 Kb2 f5 h4 c4 g4 e6 b6 f4 b5 a4 g6 f3 b7 f2 g7 Qa5 d8R Qc7 g5 Nf6 g8B Be7 d7 Na6 b8Q Ng4 g6 Bc5 g7 Ba7 d6 Qb7 b6 Qf3 b7 Ne3 Bd3 f1N Ra3 c3+ Ka1 c2 Bf5 Qf4 Qa8 Qd4+ Bb2 c1N b8Q Ne2 Qbb3 Bb7 Rc8 Nfg3 d8N Nc7 d7 Nh5 Nc6+ Kd6 d8N e5 Na5 e4 Rh2 Nef4 Ne2 Ne8 Bd5 Ne6 g8R N6g7 Qh1 Nd1 Nd2 e3 Rc3 Bc5 Ne6 Bb4 Nc5 Qe5 Ra2 a3 Nc1 Qf6 Rc2 Bc3 Qc4 Be5 Rc3 Bf4 Qa4 Bh6 Nf1 Qd8 Nab3 Qc8 Rf8 Qb8 Rf7 Rf8 Rc7 Rf6 Rd3 Qd8 Bc3 Qc8 Rac2 a2 Rcg2 Nf4 Nbd2 Nfh5 Bb2 Qb8 Ra3 Qc8 Ndb3 Qd8 Rc8 Nc7 Q8a5 Qh8 Qa6+ Ke7 Bc3 Nce8 Be5 Nf2 Kb2 a1N Nbd2 Nb3 Bc6 Na5 Ndb3 Nd1+ Kb1 Ne6 Ka1 N6g7 Bc3 Kd6 Rc7 Nf2 Bb2 Nd1 Be5+
3B2N1/r1nQR1nK/N3R3/2p1rR2/Q2Rrb2/1p2Bnq1/1P4B1/1N1nQ1Nk b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 Bd7 a4 Bb5 axb5 Qd7 Bc4 Qd6 Bf1 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 a5 h4 c5 d4 b3 d6 a4 d7 a3 d5 e6 h6 a2 d6 g6 h5 Qc8 d8R Nc6 b6 Rb8 h7 Nd4 b7 Qd7 h6 Qc7 Qe1 Ne7 Bg2 Ra8 b8N Nb5 Na6 Ra7 Be3 g5+ Kg4 Ke5 Kh5 g4 d7 g3 f6 Nf5 Kg6 Qd6 f7 Ng7 f3 Rg8 h8Q Nc7 h7 Be7 f8B Bg5 Rh6 Bf4 Be7 Re8 Bg5 Re7 Qe8 Kd5 h8N e5+ Bf6 e4 Nf7 Re6 Kh7 Re5 Bh1 g2 Rg6 Qe6 Nh6 Qg4 Ng8 Qg3 Bg5 Qf2 Re6 Qg3 Ne2 g1N Bg2 Nh3 Ng1 Nf2 Be7 Nd1 Bh4 Bh6 f4 Bg5 f5 Bf4 Bc1 Kd4 f6 e3 f7 e2 f8R Re4 Be3+ Kd5 Qa5 e1N Qa4 Nf3 Rf5+ Re5 Qa3 Ke4 Bf6 Rb7 Qa4+ Rb4 Qe7 Rd4 Re8 Rc4 d8Q Rd4 Qdd7 Rb4 Na3 Rc4 Rc1 a1R Nb1 Ra2 Rc3 Ra1 Rd3 Rb4 Bc1 Rc4 Rd2 Ke3 Bh4 Rce4 Rd4+ Kf2 Bg5 Qg4 Bf6 Kg3 Be3 Kh2 Rf8 Ra2 Rf7 Qg3 Qee8 Ra3 Bd8 Ra2 Rfe7 Ra3 Qb4 Ra5 Qe1 Ra3 Nb4 Ra8 Na6 Ra7 Bh3 Kh1 Qa4 Nc3 Qed7 Nd1 Bg2+
k1nb4/2b1p3/br1B4/B1NnQRn1/Np2B2R/B2qN3/QP4Q1/K1Rn3N b - - 0 1 legal: proof: g4 b5 d4 a6 a4 f5 e4 h5 gxh5 c5 dxc5 Bb7 exf5 Ra7 Bd2 Bc8 Bb4 Rb7 a5 Rb6 axb6 d5 Kd2 Kd7 Kc1 Kc6 c4 Kb7 h4 g5 f4 a5 h6 d4 c6+ Ka8 b7+ Ka7 h5 d3 h7 g4 c5 a4 c7 g3 c6 a3 h6 a2 f6 g2 f7 Qd7 f5 Qe8 f6 Nd7 b8B+ Ka8 Na3 Qd8 Qb3 Bb7 c8Q Qe8 c7 Qd8 Nc4 Bf3 Nh3 g1B Nf2 Bg2 Ba3 Bh2 Ne3 Bg7 f8R Qe8 f7 Bf4 Rh4 Qd8 Nh1 Bc6 Bg2 Bc3 Be4 Nb6 Qh3 Nf6 c8N Bc7 Qg2 d2+ Kc2 d1N Rc1 a1N+ Kb1 Bb7 Qa2 Rg8 h8Q Rg6 h7 Nfd5 Qe5 Nc2 h8B Ne1 Ka1 Ba6 Bg7 Qd7 Bh6 Bd8 Bbd6 Nf3 Bf4 b4 Bc7 Nc4 Ba5 Ng5 Bg3 Nd6 Nb6+ Kb7 Na4 Ka8 Qg7 Nc8 Bd6 Bd2 Qe5 Qb5 Rg8 Be1 f8N Bg3 Nd7 Qd3 Rf8 Bf4 Rf5 Re6 Bdc7 Rb6 Ndc5 Bg3 Qf6 Bf2 Bh2 Bg3 Qc3 Bb8 Bd6 Bbc7 Qe5
4nKB1/B1kp2rB/1nBRq2R/1NqR4/Q1R1b1n1/1N2Qp2/n4Pr1/N3Q3 b - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 dxc5 f5 a4 e6 axb5 f4 e3 f3 Nd2 Bd6 Nb1 Bf4 exf4 Qb6 Qd4 Qc7 Qd1 Qd8 Kd2 g5 Kc3 a5 Kc4 e5 Kd5 a4 Kd6 g4 c4 e4 h4 e3 b4 g3 f5 g2 b6 a3 c6 e2 c7 e1Q b7 a2 b5 Nc6 b8N Ra3 c5 Nge7 h6 Rf8 f6 Qe3 b6 Na5 b7 Ng8 c6 Nb3 h5 Rf7 h7 Ra4 h8Q Ra7 h6 Qe2 h7 Qe3 Rh6 Ra6 Bd3 Qe4 Qe1 Qe3 Ne2 g1N Na3 Nc5 Nb5 Ra7 Na6 Qd2 b8R Rg7 f7+ Kf8 Ned4 Na4 Nc5 Bb7 c8B Q2g5 c7 Ra5 Ncb3 Nb2 Nc2 Nh3 Be3 Bd5 Ba6 Qc8 Rc1 a1N Rb6 Qe8 c8B Nf4 Bcb7 Ne6 Bc6 Na4 Bab7 Nc7 Ra6 Be4 Ba7 Qg1 Rh5 Nb6 Rd5 Rg2 Qd4 Nh6 Qde3 Ng4 Ba8 Qh1 Bc4 Qh5 h8R+ Kg7 Bd3 Kf6 f8Q+ Qef7 Qg8 Qfg6 Rh6 Ne8+ Kc5 Ke7 Qf7+ Kd8 Qff4 Nef6 Kd6 Kc8 Ke7 Ne8 Kf8 Qe6 Qf6 Qg5 Qfd4 Qge5 Qa4 Qc7 Nc5 Nb3 Na1 Kd8 Rc4 Nc1 Ncb3 Na2 Rd6 Kc8 Bd5 Qc5 Bac6 Qf5+ Bf7 Qe6 Bg8 Kd8 N5d4 Rb5 Ra5 Kc7 Bc2 Qb4 Bd3 Rg5 Rd5 Rg7 Bb1 Qc5 Bc2 Bd3 Bb1 Be2 Be4 Bd3 Beh7 Be4 Nb5+
1NR3r1/3bB1Q1/Rrr1qn1B/1BBk4/Knp1p3/2P1N1RN/8/2q1QrRQ b - - 0 1 legal: proof: e4 d5 exd5 b5 h4 g5 hxg5 e6 f4 b4 g4 b3 g6 Qe7 g7 Qb4 g5 Qd4 g6 Qf6 axb3 Qd8 b4 Be7 b5 Bg5 fxg5 Qf6 Ra3 Qe7 Ra1 Qd8 b4 Kd7 d4 Kd6 Kd2 a5 Kc3 h5 Kb3 f5 c3 c5 b6 h4 b5 h3 b7 f4 b6 e5 Ka4 f3 Na3 e4 Bb5 h2 Nc4+ Ke7 d6+ Ke6 d5+ Kf5 d7 f2 d6 Ke6 Ne3 f1R Qe1 c4 Nh3 Rf3 Rg1 Nf6 g8Q+ Ke5 g7 h1Q g6 Rh6 Qh7 Nc6 b8N Rf4 g8R Qc7 d8R Bd7 g7 Qc8 b7 Nb4 Bd2 Qc6 Rc8 Rf1 Rg3 Ra6 Ra3 Rb6 Bc1 Be8 d7 Qe6 d8B Bd7 Be7 Rg6 Qh5+ Rg5 Qf3 Qg1 Qh1 Rg6 Nf5 Kd5 Bh6 Qe3 Rgd8 Rc6 g8Q Qc1 Qf8 Rg8 Qg7 Rf2 Ra1 Rb2 Ra2 Rb3 Rag2 Rb1 Rg1 Rb2 Na6 Rb3 b8B Rb1 Ba7 Rb2 Ka3 a4 Bac5 Na2 Ra8 Qa1 Qf1 Qd1 Nb8 Qa1 Ba6 Rbb6 Qf2 Qf1 Rc8 Nb4 Bb5 Qe1 Ra6 Qe3 Kb2 a3+ Kb1 a2+ Kb2 Qd2+ Ka3 Qe3 Ka4 a1R+ Qa2 Rf1 Qf2 Qg5 Qe1 Qc1 Ne3+
QBrQb2N/1pN5/1Pn1Rb2/qRN3qk/b4p2/nR1B1RQ1/4bK2/6BN b - - 0 1 illegal: No proof kernel
NQBk1q2/3rR1p1/N2p1qqQ/8/B1rN3B/1nRq1Q1R/n3b1P1/2B2N1K b - - 0 1 illegal: No proof kernel
2kn2Q1/nQnp4/8/Q1B2N1K/3NBrN1/Q1q1p1Bn/3P1qr1/R1bRR2R b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Bb7 g4 Bc8 gxh5 Nf6 b4 Rh6 c4 Nc6 c5 Rh8 b6 Ng8 b5 Nb8 c6 Bb7 cxb7 Rh7 Qf3 Rh6 Qd1 Rh8 Ke2 e5 Kf3 a5 Kg4 g5 f4 c5 h4 e4 h6 a4 h5 c4 f6 a3 f5 e3 f7+ Ke7 h7 a2 f6+ Ke6 h6 c3 Nf3 c2 Nd4+ Kd6 Bd3 Qc7 Nf5+ Ke6 Be4 Bb4 f8R Qh2 f7 Ra5 Re1 Bd6 Nc3 Na6 b8N Ne7 b7 Ra4 b6 Nc8 Nc6 Rg8 b8Q Qf2 h8Q Na7 h7 Ba3 b7 Nc7 Kh5 g4 Ne2 g3 Ne5 g2 Ng4 g1N Qa8 Nh3 b8B Rg7 Qg8 Rc4 Bb2 c1N h8R Nb3 Bd4 Na5 Qb1 Bc1 Bc5 N5c6 Qbb7 Nd8 Rd1 Ncb5 Bg3 Nc7 Qb4 Rd4 Qa5 Ra4 Qb7 Rc4 Rb1 a1Q Re1 Qc3 Ra1 Ndc6 Rb8 Nd8 f8Q+ Rf7 Qg5 Rg7 Qd6+ Kf7 Ned4 Rb4 Rh6 Ke8 Qda6 Rb6 Qa3 Rf6 Q6a5 Rg8 Qd5 Rg7 Rbb1 Rgg6 Qb7 Rg8 Ne7 Rf4 Nef5 Ng1 Nh2 Nde6 Bh4 Bb2 Rbd1 Bc1 Rg6 Nh3 Qd8+ Kf7 Rgg1 Rg2 Qg5 Ke8 Rgf1 Nc8 Qg4 Na7 Bg3 Kd8 Qg7 Qf3+ Ng4 Qf2 Qbb6 Kc8 Qg8+ Nd8 Rh1 Ne8 Qb1 Nc7 Qb7#
K1N2r2/R1B2QRb/2Q2bB1/krn3N1/1R2Bq1P/1pp1p3/B1R4b/2nN1Q2 b - - 0 1 illegal: No possible last move
1B1R2r1/2BR1k1N/KQr1r1R1/1p4bB/bQ2R1n1/p3nN1p/2P5/B1Q2q1N b - - 0 1 illegal: No proof kernel
BNB4Q/B1R2nKb/5R1p/4Q1bR/rNB1ppR1/2Q2n1P/n2kr1N1/2q5 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 exd5 c3 bxc3 Bh6 c4 Bg7 c5 Bf8 Kf2 Kd7 Kg3 f5 Kh4 a5 Kh5 e5 d4 f4 c4 a4 g4 e4 d6 Ke6 d7 h6 Kg6 a3 c6 a2 c5 Kd5 b6 Ra3 c7 Be7 b7 Nf6 c6 Rh3 Qf3 Rh5 Be3 Ba3 Kg7 Ng8 g6 Na6 b8N Nf6 g5 Rh3 Bc4+ Kd6 d5 Ke5 d6 Ng4 Ba7 Ne3 Nc3 Bb2 Nd5 Rg3 Nb4 Nd5 Qc3+ Kf5 Nf3 Nf6 Ne1 Kg4 Ng2 Re3 Rad1 Qe8 d8Q Kf3 d7 a1N Qe7 Nh7 d8Q Nb3 Rd6 Bf5 c8R Nd2 c7 Qc6 Qee5 Qc5 Bd5 Ke2 Rf6 Nf3 Ba8 Re8 Qdd4 Re6 Qd8 Rd6 Qh8 Rd4 h3 Qc6 Ra1 Qc5 Ra5 Ba3 Qb3 Qc1 Qc3 Bb2 Kg8 Kd1 g7 Re2 g6 Nhg5 Kf8 Ba1 g8B Nf7 g7 Bh7 Rd5 Rdd2 Rc5 Ra2 Ra5 Ra4 Rb5 Nd8 Bc4 Nf7 g8R Bb2 Rg4 Ba3 Qb3+ Kd2 Kg7 Bb2 Re8 Bd4 c8B Bb6 Re7 Bd8 Rc7 Be7 Nc2 Nb4 Qbb2 Na2 Qec3+ Kd1 Rh5 Bd8 Qe5 Kd2 Qa3 Be7 Nb4 Bd8 Ra6 Bh4 Rf6 Bg5 Qac3+
1nBbN1kR/K2Q2p1/2q5/N1BR2N1/2QpQ2p/1P3bRr/1rb1B2Q/2n1N3 b - - 0 1 illegal: No proof kernel
1r2r1kR/b1RNRp2/N2N2B1/KQ2Q2p/3q4/nNB1n1p1/B2Pn1B1/1Q5b b - - 0 1 illegal: No proof kernel
NN3brq/1B3pB1/Q2n4/1p3r1N/R1R1k3/Q4R1K/1P2p1Qn/1n1RBB1b b - - 0 1 illegal: No possible last move, all moves rejected
3r3B/R2pB1P1/1p3Q2/R4r1N/qQb2pB1/b1RbQ1B1/5QN1/n2kN1nK b - - 0 1 illegal: No proof kernel
1K1NB2B/r5q1/1Q1QrNp1/R1QB2k1/2pp4/2n2NP1/b1QBq2R/2b1Rn2 b - - 0 1 illegal: No possible last move
2r5/R3NBq1/PprbnQQ1/1R2R2K/Rp3pBQ/4n3/3kN2B/2QqNb2 b - - 0 1 illegal: Other
3B1n2/rk1B1q1P/2bQ1b1p/R2B4/4nQ2/pN1NQ1pK/N1RBr3/R1qN4 b - - 0 1 illegal: No proof kernel
7R/6Qp/1B1qBq1b/p1r2R2/rnBNkQ2/PQ1N3N/1n2p3/1KRRN2b b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 g5 c4 g4 cxd5 g3 hxg3 Nd7 g4 Nb8 g5 Bd7 Ne2 Be6 Ng1 Bc8 d4 Kf7 Kd2 a5 Kc2 e5 f4 b5 g4 b4 a3 e4 g6+ Kf6 d6 e3 d5 Nd7 g5+ Kg7 c6 Nh6 f6+ Kg8 g7 Kf7 g8B+ Kg6 f7 Kf5 c7 Nf6 g6 Be6 c8R Ke4 d7 Qc7+ Bc4 e2 d8N Qb7 g7 Be7 f8Q Qa6 f5 Ne8 f6 Bf7 d6 Ra7 d7 Qc6 Ne6 Rc7 d8N Qa6 Nh3 Qd6 Nef4 Ng4 Be3 Bd5 f7 Nef6 Nc6 Nf2 Bb6 Nd3 Nd4 Nb2 Nd3 b3+ Kc1 Rc5 Nd2+ Ke3 Rg1 Bh1 Kb1 Nd5 N2f3 Ke4 Nfe1 Nb4 Rg5 Bd8 Rf5 Bg5 Rc7 Be3 Qb8 Bh6 f8Q Qf6 Bge6 Rg8 Qf7 Rd8 g8R Rd6 Rh8 Rdd5 Ndf3 Rd4 Qg7 Rcd5 Ba6 Na2 Ndf4 Nb4 Kc1 Nc2 Nh2 Ra4 Nhf3 Nb4 Rd7 Re5 Bac4 Rc5 Rd3 Rb5 Qc2 Rc5 Rd1+ N2d3+ Kd2 b2 Rac1 b1Q Qb3 Na2 Qbc7 Qba1 Kc2 Qad4 Kb1 Nb2 Nfd3 Nb4 Qd6 Qd5 Nd4 Qc6 Qh2 Qd6 Qf4+
2n4B/1QR3pp/N1p1b2Q/5qk1/1NBQr2q/3n1Rr1/KB1NP1Q1/1R2R1b1 b - - 0 1 illegal: Other
kN1N1N2/Q2p2Q1/4PQb1/2rnqrn1/Rbp5/3B1R1p/5BR1/QB1q1NK1 b - - 0 1 illegal: No possible last move, all moves rejected
R1r3nN/r5r1/1K1N1N1R/2nBpp2/4Pp2/Q1B2bQ1/1R3QB1/Rq1kQn2 b - - 0 1 illegal: Other
1qr4N/R3N3/1p1Q2B1/NP1pQnBp/b1kN4/2rR3R/Q1Br4/1b1BK1b1 b - - 0 1 legal: proof: f4 c5 a4 g5 d4 e5 dxc5 b6 fxe5 g4 a5 g3 a6 Nc6 hxg3 Nce7 g4 Nf5 g5 Nd6 Na3 Nb7 axb7 Qe7 Nb1 Qd8 b8R Ke7 e4 Ke6 b4 a5 c4 f5 g4 h5 b5 a4 c6 d6 g6 a3 g7 f4 g5 f3 c5 a2 c7 Qe7 c6 Qe8 g6 Rh6 Bd3 Ra6 Bc2 Qd7 Bg5 Rh7 Ne2 Ra4 Nd2 Rh6 Rh3 Ra3 Nb3 Bb7 c8B Ba6 c7 Ne7 g8N Nc6 g7 Rf6 Nh6 Nd4 Nf7 Bb7 g8Q Bd5 Nh8+ Rf7 Bb7 Qd8 c8N Nf5 Ne7 Qe8 Ra8 Qb8 Ra7 Bg7 Rb1 a1R Rb2 R1a2 Ned4+ Kd7 Qd2 Rf8 e6+ Kc7 e5 Rc8 Qb4 Be4 Bd1 Bb1 Rd2 Rb2 Rd3 Rd2 Nc1 Rc3 Be4+ Qb7 Ncb3 d5 Qa3 Bf8 Qg6 Bc2 Qa2 Bh6 Bf6 Be3 Bg5 Bb1 Nec6 Bc2 e7 Bg1 e6 Kd6 e8B Qb8 Ne7 Bb1 Qf6 Bc2 Bg6 Bb1 Na5 Kc5 Nab3+ Kc4 Qe5 Bc2 Qd6 Bb1 Nec6 Bc2 e7 Bb1 e8Q f2+ Kf1 Bc2 Qee5 Bb1 Ne7 Bc2 Kg2 f1B+ Kf3 Be2+ Kg2 Bf3+ Kf1 Bb1 Ke1 Bg4 Bc2 Be2 Bf3 Bd1 Nc5+ Kb4 Ba4 Bb3 Bd1 Bc4 Bac2 Bb3 Ra8 Ba4 Ncb3+ Kc4 Ra6 Nh4 Ra7 Nf5 Na5#
3BR1KQ/pNN3R1/Nq1q4/Pr1r1B2/Q1Rb1r2/BQpB4/5pb1/1k2nR2 b - - 0 1 illegal: No possible last move
1K1R1R2/p3Q3/1p2n3/P1N5/1N1QbN2/R1pBB2q/rQ1Q1q1N/qnb1kB2 b - - 0 1 legal: proof: e4 f5 exf5 d5 g4 h5 gxh5 c5 c4 b6 cxd5 c4 b4 Na6 Nf3 Rb8 Ng1 Rb7 Nh3 Rc7 Ng1 Rc5 bxc5 Rh7 Qf3 Rh6 Qd1 Rh8 Ke2 Kd7 Kf3 g5 Ke4 e5 a4 g4 d4 g3 h4 g2 f4 Bh6 a5 Qg5 f6 Bb7 c6+ Kd6 f7 Bc8 f8Q+ Qe7 c7 Bh3 c8B Bd7 f5 Bd2 h6 Bc6 f6 Rh7 h5 Be1 f7 Bg3 Nc3 Rh8 h7 Nc7 h6 Bb5 Be3 Ba4 Na2 Bf4 Ba6 Ne8 Qc2 Bd7 Nb4 Bh2 Ra3 Ba4 Nf3 Bf4 Nh2 g1Q Qg7 Qg3 f8N Qe6 Nd7 Qeh3 Nc5 Ne7 Bb5 Rf8 h8N Nc7 h7 Qf2 Ng6 Ne6 h8Q Rd8 Ba6 Bc6 Qf7 Bh6 Nf4 Rg8 Qhf6 Rg1 Bd3 Ra1 Rf1 Ra2 Qh7 c3 Qb2 Nf5 Qfg7 Nh4 Qg2 Qe1 Qgc2 Qa1 Rf3 Ba8 Bf1 Bb7 Bad3 Bc6 Rf2 Nf3 Qg7 Ba8 Qg4 Nd2+ Kf5 Ke7 d6+ Kf7 d5 e4 Ke5 Nb1 d7 Bg5 Kd6 Kf6 Qge2 Kf5 d8R Bc6 Nf3 Kg4 Nh2+ Kg3 Qe1 Ba8 Kd7 Bb7 d6 Bd5 Kc8 Ba8 Bd4 e3 d7 e2 Kb8 Be4 Be3 Bh6 Rc8 Bg5 d8Q Bh6 Qed1 e1Q Qe7 Qe2 Rd8 Qd2 Ng2 Bg5 Rff8 Qf2 Bd4 Bc1 Be3 Qff5 Nf4 Qf6 Bd2 Kf2 Qg4 Qf5 Be3+ Ke1 Qgg7 Qf6 Qh8 Qfh4 Qd4 Qf2 Qd2+
1Qq1BN2/2Qqp3/kNpN2NR/1r1Q4/4P1Q1/p1Bb1K2/1b2n1RB/1r3Rb1 b - - 0 1 legal: proof: g4 b5 c4 g5 a4 d5 cxd5 f5 gxf5 Nc6 axb5 Ne5 h4 g4 Rh2 Nf7 Rh1 Ng5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 d4 Kd7 e4 h5 Ke2 a5 f4 h4 b4 h3 d6 h2 d5 g3 f6 a4 f7 g2 b6 a3 g6 Rh4 b7 Rg4 b8B Ra5 f5 Rc5 f6 Bb7 g7 Kc8 b5 Rc3 b6 Ba8 b7+ Kd7 Nh3 g1B Bd2 Bb6 Ng5 Rc6 Kf3 Be3 Bb5 Qe8 Bc3 Qc8 Nd2 Bf2 Nc4 Nh6 g8R Nf5 Nb6+ Kd8 d7 Rg1 Rg6 Bh6 f8N Bg7 f7 Ng3 Ra2 Bfd4 Rg2 Rc5 Rh6 Ne2 Ng6 Bge5 Ba4 Rb5 f8N Re1 Rf1 h1Q Qd2 Bf2 Qf4 Reb1 Qg4 Bg7 Bd1 c6 Bh2 Be5 Nf7+ Kc7 Nd6 Bg1 d8Q+ Kb8 Qc7+ Ka7 b8Q+ Ka6 Nb7 Bf6 d6 Bh8 d7 Be5 Bd2 Bb2 Nd6 Bb7 d8Q Qd7 Bc3 Bc8 Bg3 Qh3 Bb3 Bb7 Bf7 Qc8 Be8 Qd7 Qh4 Qc8 Qg5 Qhd7 Qg4 Rg5 Bce5 Ka5 Bh4 Qe6 Nb5 Ba6 Bh2 Rh5 Qd4 Qed7 Nd6 Bd3 Bf6 Rb5 Qd5 Ka6 Bc3
1nK3bN/Qp2R3/2pbQ1N1/1kP1Qr2/3B1N2/RR1r2pr/2Nb1n1R/3B2B1 b - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 d5 bxa5 g4 e4 Qd6 exd5 Qb4 Rh3 Qf4 Rh1 Qg5 hxg5 Be6 Bd3 Bd7 Bf1 Bc8 Ke2 Kd7 Ke3 e5 Ke4 h5 a4 h4 c4 c6 d4 g3 f4 h3 a6 h2 c5 Ne7 a5 Rh7 d6 Nd5 a7 Nb6 a6 Rf7 d5 Bg7 f6 Re7 Kf5 e4 f7 e3 f8B e2 g6 e1B Qh5 Bb4 Be3 Bd4 g7 Ba5 g8Q Bg7 Ne2 Be1 Bg1 Bh8 Qe6+ Kd8 d7 Kc7 d8R Bd2 Na3 Bd7 Nc2 Bb4 Ra3 Ba5 Bg7 Bb4 Rb3 Bc8 B7d4 N6d7 Re8 Rg7 Re7 Rg6 d6+ Kd8 Bh3 Nb6 d7 Kc7 d8N+ N6d7 Nf7 Bg7 Nh8 Bf8 Bg4 Bd2 Qg5 Rh6 Qgf6 Rh3 Qfe5+ Kd8 Bh5 Nf6 Bf3 Ne4 Bh5 Nd6+ Kf6 Bd7 f5 Kc8 Nf4 Ne4+ Kf7 Nf2 Bd1 Rh5 f6 Rf5 Qc4 Be8+ Ke6 Bg6 f7 Bh7 Qce2 Bg8 Kd6 Bg7 f8N Bf6 Nf8g6 Bh4 Rf7 Be7+ Ke6 Bd6 Qg4 Nd7 Qge2 Rb8 a8Q Kc7 Qa7 Rd8 Qb6+ Kc8 a7 Nb8 a8R Bf8 Be3 Rd3 Raa3 Bd6 Qa5 Na6 Bd4 Kb8 Kd7 Ka7 Kc8 Ne4 Bge3 Nf2 Re1 h1R Re7 Rh2 Rh1 Rh3 Qa4 Ba5 Qe1 Nb8 Rh2 Ka6 Qe2 Ng4 Bg1 Nf2 Qe1 Rc3 Qe6 Re3 Ra1 Rd3 Q1e5 Nh1 Qa3 Nf2 Nb4+ Kb5 Nc2+ Bb4 Qa7 Rhh5 Rc3 Rh3 Raa3 Ba5 Rc4 Be1 Rcc3 Bd2 Rcb3+
N7/Q1R1QBpp/1bRBK2b/1Q3p2/4kP1b/NR6/rRb1r2n/BN2Q2q b - - 0 1 illegal: No proof kernel
Nk4R1/1b1p1q1n/n1pN1QQ1/2b1R3/1rP1N3/2NBp2B/R1b1Q3/KB4Bb b - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 bxa5 g5 d4 g4 d5 g3 d6 c6 hxg3 Na6 g4 Ra7 g5 Rc7 dxc7 Nb8 Kd2 h5 Kc3 e5 Kb2 h4 a4 h3 g4 e4 c4 b4 f4 b3 g6 h2 f6 Rh7 g5 Ba6 c8N Bb4 f5 Bd2 g7 Ne7 g8B Rh4 g6 Rh8 f7+ Kf8 Ne2 Qe8 Nd6 Nc8 g7+ Ke7 f8R Kd8 f6 Kc7 f7 Bb7 a6 Qe6 a7 Bb4 a8Q Bc5 a5 Bg1 a6 Nb6 a7 Qd5 Bh7 Qf5 g8B Nd5 Nd2 Bd4+ Nc3 Bg1 Bd3 Qe6 Qe2 Ne3 Ra2 Qd5 Ka1 Na6 Qe8 Ng4 Bg6 Be3 Re1 h1B Ba3 Bf2 Bc5 Nf6 Bf5 Rh5 Bh3 Nh7 Qe6 Qf5 Qg6 Qf6 Be3 Rb5 Rb8 Qf3 f8Q Rb4 Qff6 Qh5 Bb1 Qd5 Re8 Qf7 Re5 Bg1 a8N+ Kb8 Bb6 Bc5 Rg1 Qf8 Bge6 Qg7 Bef5 e3 Bfd3 Qg8 N2e4 Qf7 Bd8 Qf8 Qff7 Qg7 Bh4 Qf6 Bf2 Qg7 Qff6 Qf7 Ra3 b2+ Ka2 Bg2 Qgh5 Bh1 Rg8+ Qe8 Bg1 Qf8 Qhg6 Qe8 Bbc2 b1B+ Ka1 Qf8 Bb3 Qe8 Ba2 Bc2 Bb1 Qf8 Ra2 Qe8 Nc8 Qf7 Ncd6+
r2Nn2R/1r1N4/bR3p2/QN3PB1/1pQ2b1B/B2Qb1k1/2NnR2p/2KB3b b - - 0 1 illegal: No possible last move
r3BR1k/p1KNp3/1Q1n2QB/Nr1pb1p1/1r1qPB2/R1N4B/6RQ/2n2N2 b - - 0 1 legal: proof: g4 b5 d4 g5 a4 f5 gxf5 c5 dxc5 Bb7 axb5 Bg2 h4 Bd5 h5 Bc4 Kd2 Bf7 Ke1 Bg6 hxg6 Qb6 Qd3 Qc7 Qd1 Qd8 Kd2 d5 Kc3 h5 Kb4 h4 f4 h3 c4 h2 e4 Nf6 c6 Rh3 Kc5 Rf3 b4 Qc7 b6 Qb7 c7 Ng4 c8N Nc6 g7 Kf7 g8Q+ Kf6 b5 Ne3 Ne2 Ng2 Rg1 h1R Nd6 Qb8 b7 Rhh3 b6 Nb4 Nd2 Bg7 Nc3 Nc6 Qe2 Re3 Ra3 Qf8 b8N Qe8 b7 Ne1 Qh2 Rhg3 Bh3 Ng2 Nf1 Nh4 Rg2 Qc8 Kb5 Bh6 c5 Qe8 Nc4 Re1 Na5 Ne5+ c6 Qf8 c7 Nd3 Kc6 Nf3 c8B Ng1 Bd7 Nb2 Be8 Ne2 Kc7 Nc4 Qe6+ Kg7 f6+ Kh8 f7 Rd1 f5 Qg7 f8B Rd4 f6 Nd6 f7 Rb4 Qg6 Qd4 Nd7 Bg7 b8Q Be5 Bf4 Nc1 Bh6 Rd3 Qd8 Rd2 Qb8 Rdb2 Qb7 Rb5 Qb6 R2b4 f8R#
3R2RQ/b1N3p1/1k1BN2R/p1b4N/pB1n2P1/2N1K1pb/2Bn1Q2/2r1QQr1 b - - 0 1 illegal: Other
6BQ/qR1p2r1/5nBN/2b1Brkq/5r2/nPB1RN2/R1R3Kb/N3B2B b - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 h4 g5 fxg5 Bb7 h5 Bd5 g3 Bf7 g4 Bg6 hxg6 Qb6 Nh3 Qc7 Ng1 Qd8 Kf2 e5 c4 Ke7 f6+ Ke6 f7 a5 c6 h5 c5 e4 g7 a4 g6 Kf6 b3 a3 b6 h4 g5+ Kf5 b7 a2 c7 h3 c8R h2 c6 e3+ Kg2 e2 c7 e1R Bb2 Nc6 b8B Bd6 f8B Bc5 Nf3 Nce7 Na3 Be3 Bc3 Bd2 Bd3+ Kf4 Nc2 Nh6 g8B Nhf5 g7 Rh5 g6 Rf1 Bd5 Ng8 Bfb4 Nf6 g8N Nd4 g7 Be3 Nh6 Nb5 g8B Na3 Bg6 Bc5 Rg1 Qe7 Qd4+ Qe4 Be1 Rf5 Bbc3 Ra5 Re8 Rb5 Rc1 a1B Re7 Rb6 c8R+ Rd6 Re5 Re6 Bc7 Re7 Rb8 Rg7 Rb7 Bb2 Ra1 Bc1 Ra2 Bb2 Qb4 Qd4 Na1 Bc1 Qa4 Be3 Rh1 Bg1 Qa8 Qa4 Qd8 Qa7 Ree2+ Bd6 Rec2 Bc5 Bh7 Be5 Qh8 Bed6 Bhg8 Be5 Nh4 Kg5 Bd6 Bg3 Bde5 R1f4 Rf1 Bg1 Rf3 h1Q+ Kf1 B3f2 Re3 Qf3 Be4 Qh5 Bh1 Bh2 Kg2 Bfg1 Re4 Bd4 Re3 Bc5 Nf3+
Nb1Nn2K/np2QNRn/1R2N3/b2NPk2/1B3r1B/r2N4/R7/1qq1BB2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 a5 g4 f5 b4 e5 fxe5 Ne7 bxa5 Be6 h3 Bf7 Bb2 Ng8 Bc1 Bh5 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Qc8 Bh3 Qd7 Bf1 Qd8 a4 Ke7 e4 c5 Ke2 h5 Kd3 h4 d6+ Kd7 e6+ Ke8 e7 Kf7 e8N h3 a6 g2 f6 Ke6 f7 c4+ Kd4 c3 g5 h2 d7 c2 g6 Be7 f8B Bh4 a7 Qa5 d8B Be7 g7 Nh6 g8R Qg5 a5 Bd6 a6 Rh7 Ne2 g1N Rg7 Nh3 Ra2 Ng4 Nbc3 Bf4 Qe1 Qa5 Bh4 Ne3 Nd6 Nf2 Nd5 Rh6 Nf7 Nc4 Bb4 Bc7 Nef4+ Kd7 Nd3 Nd6 Ke5 Qa3 Rhg1 h1Q R1g6 Nc6+ Kf6 Rf8 a8N Nh3 a7 Ba5 Nac7 Ng5 a8N Na7 Ne6 Rhh8 Bb2 c1B B2c3 Qb3 Qe3 Qb1 e5 Ba3 Qc5 Rhg8 Rh6 Nh7+ Kg6 Ne8 Qe7+ Kc8 Bd4 Qc1 Bdf2 Qb1 Be1 Qc1 Bc3 Bd6 Bb4 Bdc7 Ndc5 Rh8 d4 Bb8 Nd3 Qb1 Ne3 Qc6 d5 Qcc1 d6 Rhg8 Nd5 Rh8 Nfg5 Rf4 Nf7 Rg8 Qf6 Kd7 Qe7+ Kc6 d7 Rf8 Bd6 Ra4 Bdb4 Ra3 Nd6 Rf4 Nf7 Kb5 d8N Kc4 Nec7 Kd4 Nce6+ Ke4 Rc2 Nhf6 Ra2 Nd7 Kh7 Ndf6+ Kh8 Kf5 Nec5 Nh7 Rb6 Qc3 Nce6 Qc8 Nfg5 Qcc1 Ngf7
N3N1RB/n4N2/N1BRnK1P/n5R1/Nq1n3k/B1p1Q1R1/3rnb1N/3r4 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b6 h5 gxh5 a5 b3 a4 Bc4 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Ra5 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 a2 h4 g6 h6 e6 h7 c4 h5 Qe7 b7 Ra5 h6 Qc7+ d6 Ra7 a5 Qb6 d5 Qd8 d7 Qc7+ d6 Bg7 d8R Ra6 Qe2 Nd7 b8N Rb6 a6 Qc5 a7 Qa3 a8N Rc6 Nc3 Ne7 Nf3 Nf8 d7 Rd6 Bg2 Rd1 Qe3 Nc8 Rh5 Qb4 Rg5 Na7 Na6 e5+ Kg4 e4 Na4 c3 Ba3 Rd2 Nh2 Ne6 Rg1 a1N f4 Nb3 Kh4 Rg8 h8B Na5 Bf3 Re8 R1g3 Re7 Rg8 Rd1 d8N Red7 Nf7 R7d2 Qc5 e3 Bc6 e2 Qe3 e1N Rd8 Nc2 Rd6 Nd4 Kg4 Ke7 f6+ Kf8 f5 Kg8 Nd8 Kh7 f7 Bf6 f8R Be7 Rh5 g5 f6 Kg6 f7 Bf6 Rg8+ Bg7 Kh3 g4+ Kh4 Kf6 Re5 Kg6 f8N+ Kf6 Rg1 g3 Rg5 g2 Rg3 Kf5 Nf7 Be5 Nh7 Bf6+ Kh5 Bh4 Qe1 Kf4 Nf6 Kf5 R3g5+ Kf4 Kg6 Bf2 Rc5 Kg3 Rg5+ Kh4 Ne8 Nc2 Kf6 Ncd4 Rh1 g1N Qe3 Nge2 Rhg1 N6f4 R1g2 Nfe6 R2g3
4r1R1/1BN2bK1/Rr2q1B1/BkB3RQ/1r5q/2Rr3n/1N2pN1P/B3B1r1 b - - 0 1 legal: proof: e4 b5 a4 e5 axb5 d5 exd5 h5 f4 h4 c4 h3 c5 e4 d4 Bd6 cxd6 Kd7 gxh3 Nc6 h4 Ke8 h5 Ne5 fxe5 Bd7 Bf4 Bh3 Bc1 Bc8 Kf2 Kd7 Ke3 g5 b4 a5 h6 c5 h7 f5 b6 a4 b7 c4 b8N+ Ke8 d7+ Ke7 b5 g4 Kf4 a3 Kg5 c3 Kg6 g3 b6 a2 e6 Kd6 e7 e3 e8B g2 b7 c2 Kg7 f4 Bd2 c1R Qh5 e2 Na6 f3 b8R f2 Be1 Nf6 Nc3 Qa5 d8R+ Bd7 Nh3 g1Q+ Bg6 Qg5 Nd1 Qb6 Rdc8 Ng4 Bg2 f1R Rc3 Qb3 Nb2 Qa3 Rg1 Be6 Nf2 Qh4 Nc7 Rb1 Rg8 Bf7 Bh1 Kd7 d6 Rb8 Bb7 Qb3 d5 Rd1 Rgg3 Rg1 Rg2 Rd3 Rg3 Re8 Rg2 Kd8 d7 Ke7 d8B+ Kd7 d6 Qe6 Be7 Rb8 Nfd1 Nf2 Rg5 Nh3 Nf2 Rg4 Ba8 Rb6 Bb7 Rc4 Bf8 Kd8 d7 Rcb4 Rac1 a1R Bc5+ Be8 Ra3 Rb1 Rcc3 Rc1 Kf8 Bf7 Ra6 Rb1 Bd4 Rbd1 Kg7+ Ke7 d8B+ Kd7 Bd2 Rg1 Be1 R6b5 Bb6 Kd6 Ba5+ Rb6 Be7+ Kd7 Rc8 Re8 Bc5 Re7 Rg8 Re8 Bc8+ Kc6 h8B Qd4+ Kh6 Qdg4 Be5 Qd4 Kg7 Qh4 Bb7+ Kd7 Na4 Rf4 Rc2 Re4 Ba1 Reb4 Bc8+ Kc6 Rc3 Qe3 Nb2 Qe6 Nd5 Kb5 Bb7 Rc8 Kh8 Rf8 Kg7 Re8 Nc7#
Bq1n4/B1R2Nkn/2bN4/b1qB1qBR/2PNBn1B/1p1R3n/8/5QRK b - - 0 1 legal: proof: g4 h5 b4 c5 f4 a5 bxa5 g5 d4 b5 dxc5 f5 gxf5 g4 h4 Ba6 e4 Rh6 e5 Rg6 f6 Bc8 f5 Rg5 hxg5 Qc7 Qd5 Kd8 Qf3 Ra6 f7 Rf6 exf6 Qb6 Rh4 Kc7 Qd1 Kc6 Rh1 Qd8 Kf2 d5 Kg2 Kd7 a4 e5 c4 e4 c6+ Kd6 g6 Ke5 g7 d4 c7 g3 a6 h4 a5 e3 a7 d3 a8B d2 a6 b4 a7 e2 Bd5 e1Q a8B b3 Bd3 Qd6 Ne2 Qe7 Na3 Qd8 B3e4 Bd7 c8R Bb4 f8R Bc6 f7 Kf6 Nb5 Ba5 Ned4 Qe3 Qf1 d1Q Rc7 Qh5 Nd6 Qd3 Rh2 h3+ Kh1 Qe3 Rd2 h2 Rd3 Qf4 Re8 Qc8 f8B Qfg4 Kg2 h1N Re5 Nf2 Rb1 Nh3 Kh1 Qhe8 Bd2 Nf4 Ra1 Kg5 f6+ Kh6 f7 Nf6 Be7 Nh7 f8B Qgf5 g8N+ Kg6 Bh4 g2+ Kh2 g1N Kh1 Qed8 Nh6 Ngh3 Nhf7 Qe8 Bfe7 Kg7 Beg5 Qf8 Be3 Qce8 Nb7 Qc5 Nbd6 Ba4 N4b5 Qf6 Qc1 Qb4 Ba7 Nc6 Nd4 Qeb8 Qb1 Qg6 Bd8 Qc5 Rh5 Qf5 Bdg5 Nd8 Qe1 Bb5 Qf2 Ba4 Rg1 Bc6 Qf1
1b3QK1/2q2R1B/1nB1RB2/p1N1q3/N5R1/1b1PNqn1/2R3pr/BB3Bk1 b - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 gxf5 g5 h4 d5 cxd5 e5 fxe5 g4 a4 Ra6 axb5 Rh6 Rh2 Rh5 Rh1 Rg5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kd7 Ke3 c5 Ke4 h5 b4 h4 f6 g3 Kf5 c4 Kg6 c3 Kf7 c2 e4 g2 g6 h3 d6 h2 g7 Be7 b6 Kc6 d7 Qc7 d8B Qb7 b5+ Kc5 e6 Kd4 e5 Nd7 Ne2+ Kd3 Nf4+ Kd4 Nc3 Nc5 Ra2 Qc7 b7 Nb3 b8R Bf8+ e7 Bb7 b6 Ba6 b7 Rh3 e6 Rh7 Bb2 c1Q Ba1 Rh5 Na4+ Qb2 Nd5 Bb5 Ne3 Qb6 e8B Ke4 e7 Qc6 Qf3+ Kd4 d3 Qc1 Bc6 Ba6 e8B Ne7 g8B Nc5 Bh7 Nf5 Kg8 Nd7 f7 Bd6 f8R Nb6 Bf7 Ng3 Bf6+ Be5 Rfe8 Bc4 Re6 Bb3 Rf8 Qd1 Qf5 Qf3 b8N Qc3 Rc2 Rh6 Rg1 h1Q Nd7 Qhh5 Ndc5 Qh2 Rh1 Qhh5 Bd8 Bb8 Qf6+ Qe5 Rh4+ Qf4 Rg4 Rh2 Bfg6 Qe4 Rf7 Qf4 Bge4 Qf3 Qh6 Qc7 Qf8 Qb2 Nc4 Qc3 Bf6+ Qe5 Ncb2 Ke3 Bed5 Qd2 Nc4+ Kf2 Ne3 Kg1 Bc4 Qc1 Na6 Qd2 Bd7 Qdc3 Bd5 Qec7 N6c5 Q3e5 Be8 Bc4 Bec6 Ba6 Bb3 Bc4 Ba2 Bb3 Bb1
1b1nR2N/1Q2R1Bp/4R1Rq/2Rq1NN1/6BR/3k3K/p1p1bP1N/2n1rB2 b - - 0 1 legal: proof: h4 b5 e4 d5 c4 a5 cxd5 g5 hxg5 f5 g6 b4 g7 b3 exf5 Nh6 g4 Qd7 g5 Ra6 axb3 Qd8 b4 Rf6 b5 Rg6 fxg6 Ng8 d4 Kd7 b4 Kd6 b6 c5 b5 e5 b7 c4 b6 a4 Rh4 c3 Qf3 a3 Nd2 e4 Nh3 a2 Bb2 e3 Rc1 Nc6 b8R e2 b7 Nge7 g8B Nb4 g7 Bd7 g6 Nbc6 Be6 Rg8 Bg4 Be8 Ng5 Rh8 g8N Na5 g7 Ng6 Ne7 Rg8 Nf5+ Kc7 d6+ Kb6 d5 Kc5 d7 Nf4 d6 Qb6 d8N Bf7 d7 Rh8 g8R Nc6 Rg6 Bc4 Ndf7 Qa5 d8R Bd6 Rd7 Nd8 Re7 Re8 Nh8 c2 Bg7 Kb4 Rc8 Qd5 Rc5 Bb8 Qh1 Ba6 Ndf3 Bb5 Nh2 Nd3+ Kd2 Bc4 Re1 Nc1+ Ke3 Bd3 Qe4+ Kb3 Kf3 Ba6 Rd1 e1Q Kg2 Be2 Kh3 Qed2 Qh1 Qf4 Rd3+ Kb4 Rde3 Qfd6 R3e6 Qa6 Ra5 Kc4 Rc5+ Kd3 Qg2 Bc7 b8R Qad6 Rc8 Bb8 Qh1 Qf4 Ne4 Qh6 Ng5 Qd7 Qc6 Qd5 Qb7 Nc6 Rec7 Re7 Re8 Nd8 Ref6 Re6 Bg2 Bf3 Rce7 Re1 Bf1+ Be2 Rfe6
1NRRr2R/2P3RK/QrR1q3/b7/n1N2B2/BBN2R1B/3b1q1n/1rqk3b b - - 0 1 illegal: No possible last move
rBBKQ1bB/1Rnn1Nn1/4PN2/3R3N/kq5n/R7/5bRR/n1RrNr2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 e4 f6 d4 c4 b4 g4 h4 c3 d6 g3 d5 c2 e6+ Ke8 h6 a4 b6 a3 h5 a2 b7 g2 b5 Nc6 b8R Qe7 b6 Qg7 b7 Na7 h7 Qh6 e5 Bg7 d7+ Ke7 d8N Qd2 h6 Qe1 d6+ Ke8 d7+ Ke7 Nd2 Qf2+ Ngf3 g1N Qe1 Qh4 Ba6 Nb5 Nf1 Qb4 Nf7 Nc7 Bf4 c1N d8R Nce2 Ng3 Nd4+ Kg6 f5 Nh5 Bf6 Rd5 Bh4 Rc1 a1N Rh3 Ke8 e7 Bf2 Rg3 Nde6 Rg2 Nf6 Bh2 Ra7 Ra8 f4 b8R Ng7 Rb7 Nd7 Qe3 Rf8 Ne1 Nf3 h8R Nh4+ Kg5 f3 h7 Nb8 Kf6 Be6 Bd3 Ra3 Bf5 Rd3 Ra3 Rd1 Qe2 Qd6 Bf4 Kd7 e8N Rg8 Rcb1 Kc6 Rc1+ Qc5 Bg4 Qc3 Ke7 Nd7 Nef6 Ra8 Bf5 Bg3 Bg4 f2 Bh3 f1R Qe4 Ra7 Kd8 Bf2 Qg6 Ngf5 Qg8 Ng7 Qe8 Qc4 Rh2 Ra4 Rg8 Qc3 h8B Qc5 Ra7 Kb5 Rb7+ Ka5 Be3 Qb5 Ba7 Kb4 Bb8 Ra8 Re3 Ka4 Rec3 Ngf5 Rgg2 Ng7 Rb3 Bf5 Bg4 Bh7 Rbc3 Bg8 Bh3 Nc5 Bc8 Nd7 e6 Qb4 Ra3+
N2Rr3/bk1Nb1b1/2NR1Nr1/N3qNn1/BPb2r1n/B4BR1/3K4/Q1n3B1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 Kc7 d4 a5 d6+ Kb7 b6 h5 d5 e5 d7 e4 d6 c4 f6 c3 f7 c2 g6 h4 g5 e3 g7 e2 g6 h3 f5 h2 f6 a4 Ra3 Nc6 Nf3 Qe8 d8B Kb8 d7 Kb7 Bg2 Be7 f8N Nd4 f7 Rh3 Ne6 Rh4 f8N Re4 Kd2 e1N Nc7 Rg4 Nh4+ Nc6 Bf3 Nd3 Nf5 Nh6 g8N Nf7 g7 Ng5 Nf6 Rf4 g8B Ra6 Re1 h1R Re6 Re1 Na8 Re5 Rc3 a3 Rd6 a2 Bb3 a1B Ba3 Nc1 Ba4 Ree4 Bc7 Nd4 d8R Be6 N8d7 Bc4 Bb8 Qh8 Ba7 Qh5 Be2 Re6 Rg3 Re5 Bf3+ Ree4 Nh6 Nf5 Qg1 Nh4 Nf5 Be5 Qd4 Qe8 Qa1 Qh8 Nc3 Qe8 Ne2 Qh8 Ned4 Qe8 Nd5 Bg7 Nb3 Re6 Nb8 Rg6 Nc6 Ra5 Nf6 Re5 Rd5 Re3 R8d6 Qb8 Rd8 Qe5 R5d6 Ka6 b7 Re1 b8N+ Kb7 Nh6 Qb5 Bf2 Bef8 Nhg4 Re8 Bd4 Be7 Nbd7 Qe5 Nh6 Nd3 Bg1 c1B+ Kc2 Be3 Nf5 Ba7 Kd2 Nc1 Nba5+
NN1r1B1r/2B2n2/N4q1b/b1P2b2/R4R2/Q3R1n1/BN1k1K1n/2RbrNN1 b - - 0 1 illegal: No possible last move
3R1BK1/Brn1RB2/N1rP1b2/Qq3B2/bN4N1/1nk1n1b1/B1R1b2B/1r4R1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 e6 d5 h4 f6 a3 f7 h3 g6 c4 g5 a2 f5 h2 b6 c3 d6 c2 g7 Rh6 g6 Ra6 f6 Rh8 b7 Rh7 Qd2+ Kb3 Bd3 Qc7 d8R Qc6 Na3 Qe8 Bf5 Qe7 Qa5 Rh6 Nf3 Rc6 Re1 h1B Nh2 Qc7 Bf4 c1N Ng4 Qb6 Nc2 Bf3 Nb4 Be2 Bh2 Be7 f8R Kc4 f7 Na6 b8B Nb3 Ba7 Nf6 g8B Rh7 g7 Bd7 Rc8 Qb8 Rfd8 Nd5 f8B Ne3 Bf7 Nc7 g8B Bh4 Rad1 Bg3+ Kf6 a1B Rg1 Qb5 Rde1 Ncd5+ Kg6 e5 Rc7 e4 Rcc8 Rh6+ Kg7 Be8 Rc7 Re6 Re7 Nc7 Rd1 Bd7 Rd5 Re5 Rc5+ Kd4 Rc2+ Rec5 Be8 Rb6 Bd5 Rcc6 Bef7 Be8 Na2 Kd3 Kg8 Rb7 Bde6 Nc1 b4 Bf6 Bd5 Nb3 Bde6 Qb6 b5 Qa6 b6 Qb5 Rb2 Kd4 Nb4 Kc3 Ra2 Qa4 Bc8 Nc2 Bh7 e3 Nf2 Rc5 Qa6 B2b5 Bfg6 e2 Bf7 e1R Qa5 Ne3 Ng4 Be2 Bb1 Rb8 b7 B8b5 Bd7 Rc6 Bdf5 Rd1 Rd2 Rc1 Ba2 Rb1 Qb6 Qa6 Qa5 Ba4 Rb2 Ra8 b8N Qb5 N8a6 Rb8 Rd2 Rb7 Rc2+
1B4BR/3n1R1N/1NrRnq1b/Qq2k2r/4R3/1BP1R1r1/NRn4B/1n1b3K b - - 0 1 illegal: No possible last move, all moves rejected
2BB1B2/1R2R1K1/N2B1rN1/n1P2bR1/1bBb1B2/1q1k2br/7N/Qnq1Rr2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c6 Kf7 Ke2 Kf6 Kf3 Ke5 Kg4 Ke4 Kg5 d5 Kg6 a5 f4 e5 c4 a4 b4 d4 h4 a3 c7 d3 c5 d2 f6 a2 b6 Bh3 c8B Qd6 b5 Qe6 b7 Ra3 h6 Rb3 f5 Qb6 h5 Re3 h7 Na6 b8B Qd6 b6 Qd5 b7 Nc7 f7 Rf3 h6 Qb3 f6 Bd6 f8N Nb5 f7 Na3 Bc4 Bd7 Qf1 d1R Rh5 Rf4 Nf3 Ne7+ Kg5 g6 Nh2 Nc6 Nc3+ Kd4 Bd2 e4 Nd5 e3 Nc7 e2 Na6 e1B Bc1 Be5 Bd6 Na5 b8R Bb4 Rb7 Ke4 Rb1 a1B Be3 Bad4 Rc1 Rg8 h8B Rf2 Bf6 Rh8 h7 Bh3 Kh6 g5 Qe1 g4 Ra1 g3 Ng6 g2 f8B g1Q Rg5 Bg3 Bd8 Rf6 Bef4+ Qge3 Qc3 Rf1 Re1 Nb1 Qb2 Bf5 Qa1 Rg8 h8R Rg7 Be2 Qc1 Rh7 Rg8 Rhc7 Rh8+ Kg7 Rh3 Bc4+ Be3 Bg8 Kd3 Re7 Bd4 Bc4+
b1R4r/1QNB3b/n7/1nr2n1N/R1RP3B/pkNq2N1/r2NBN1B/6bK b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 g4 Kc5 Kg2 Kb4 d4 a5 f6 h5 b6 e5 d6 c5 f5 e4 g6 h4 b7 c4 d7 c3 g5 e3 f7 c2 g7 a4 f6 e2 g6 e1R Be2 Kb3 Bf4 Nc6 b8N Bd6 f8R Bc5 f7 Nce7 Nc3 Bb6 Na6 Ba7 Qb1 c1N Bh2 Nd3 Nf3 Rd1 Nc7 Nc6 Nd2+ Kb4 b3 Qe8 d8B Nge7 g8B Rh6 g7 Ka5 b4+ Kb6 b5 Ka5 b6 Ndb4 b7 Bf5 b8N Bh7 Nba6 Rc1 Nc5 Bb8 Nd3 Na6 Nf2 Nf5 Qb7 Na7 Rg1 h3+ Kh1 Qe3 Bh4 Rh5 Rc8 Qd3 f8N Nb5 Ng6 Kb4 Nf4 Rc2 Rgf1 Ra2 Be6 Rg5 g8N a3 Bd7 Rh5 Nf6 Rg5 Rac1 Rh5 Bg1 h2 N6e4 Rg5 Ng3 Rh5 Kg2 h1B+ Kh2 Rg5 Nfh5 Be4 Rc2 Bh1 Rfc1 Bd5 Nde4 Kb3 Kh1 Bc6 Bh2 Bd5 Ne6 Bf4 Rc4 Rh8 Nc7 Be3 Ra4 Bc6 Ncd1 Bd5 Rc5 Bc6 R1c4 Bd5 Nc3 Bc6 Nfd1 Bg1 Nf2 Bd5 Qc8 Ba8 Qb7 Nh6 Rc6 Re5 R6c5 Nf5 Rc6 Rc5 Nd2+ Kb2 Ne6 Kc2 Rc8 Kb2 Nc7 Kc2 Ndf1 Kb3 Nd2+
3b2R1/q5r1/nNR2BNp/R2n1Br1/K2R2r1/2Q1B1Rk/1P4N1/bb2nR1B b - - 0 1 illegal: No possible last move, all moves rejected
1R3B2/R1r1rQb1/1brpN3/1n1N1qNB/KR1nk2B/3n4/3P1B1b/1B3BR1 b - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 g5 a4 d6 e4 g4 exf5 g3 b6 Bd7 b5 Nh6 b7 Bc6 b6 Bb5 axb5 Qc8 hxg3 Qd8 g4 Ng8 g5 Bg7 Ra4 Bh6 Ra1 Bf8 g4 Kd7 f4 c5 f6 Ke6 g6 Kd5 f7 h5 f5 e5 f6 a5 g5 e4 g7 e3 g6 a4 Bb2 h4 Qb3+ c4 Kd1 h3 Kc2 e2 Nf3 e1B Rg1 a3 Ng5 Nh6 g8B h2 g7 h1R Bh7 a2 g8B Nc6 b8B Ra6 b7 Bf2 b6 Nf5 Ba7 Bg7 b8R Qd7 b7 Bb6 f8N+ Qf7 Bg6 R8h7 Nfe6 Nfd4+ Kc3 R1h4 Bh5 Nb5+ Kc2 Qf8 f7 Re4 Bf6 Ncd4+ Kb2 Qc8 f8B Qc5 Bd8 Be5 Bgf7 Bh2 Bfg6 Rc7 Nc3+ Ke5 Nd5 c3+ Kc1 c2 Kb2 c1N Qc4 Rf4 Bb1 Rff7 Qb3 Rfe7 Qf3 Nc2 Qf7 Nd3+ Kb3 Qf2 Bg2 Qf5 Bf1 Bf2 Be3 Rac6 Ba7 Bb6 Ka4 Ba5 Bf2 Ncd4 Ra8 Bb6 b8R Rcd7 Ra7 Rb7 Bc2 Rbc7 Rb1 a1B Rb4 Bc3 Nh7 Ke4 Bb1 Red7 Bdh4 Re7 Rb3 Nc2 Rb2 Bg7 Rb4+ Ncd4 Nhg5+
RK4bR/nB1Nn3/1kB5/2N5/1r1N2rq/2N1p1Rq/1B1rPb1B/1NN3Qq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 Kf2 Kd7 Ke3 c5 Ke4 Kc7 Ke5 f5 h4 a5 b4 a4 d4 a3 g6 a2 h6 e6 h5 f4 h7 c4 h6 c3 g7 c2 b6+ Kb7 b5 f3 d6 f2 d5 Ra4 d7 Rg4 d6 Qe8 d8N+ Ka8 b7+ Ka7 b6+ Ka6 d7 Ba3 Rh3 Ne7 g8B Rg7 Rg3 Rf7 Nc6 Bb2+ Kd6 e5 Kc7 e4 d8N e3 Ne6 Bf6 Na5 Bg5 Nf3 Rf4 Nb3 Rc4+ Nec5+ Kb5 Bg2 f1R Bd5 Bf6 Bb2 Rg4 Nc1 Nbc6 b8N Be6 b7 Bh4 Nbd7 Na7 b8B Bg8 Bb7 Qh5 Nd4+ Ka5 Bh1 Rff4 Qg1 Qf5 Bhc6 Re4 Nb5 Rb4 Nd4 Qf3 Ne4 Qg2 Ndc5 Qh1 Nec3 Qh3 Rg2 Bf2 Rg3 Bf7 Na6 Be6 Nc5 Rd8 h8N Bg8 h7 Qh4 Nf7 Rd5 Ndb5 Rd2 h8R Qh3 Ne5 Qh4 N1d3 c1Q Ned7 Qf1 Nd4 Qg2 Nc1 Qgh3 Kd8 Qg5 Bd6 Qgh4 Kc7 Ra4 Kb8 Rb4 Nf6 Kb6 Be5 Rb3 Bf4 Rb4 Nfd7+ Ka5 Qe1 Rg5 Na3 Rb5 Rg1 Nac8 N1d3 Rb4 Bh2 Rg6 Rg3 Rg4 Rc1 a1Q Qd1 Qa2 Ra1 Qd5 Nc1 Qe4 Qg1 Qh1 Nf6 Kb6 Nab1 Re4 Ra3 Rg4 Ra8 Na7 Nfd7+
3RR1rR/1r5B/2n1NB1R/1qR1nR1Q/N1r1qp2/5Pkn/3Nb1B1/B2bK3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 b4 Kd7 g4 e5 b6 f5 b7 h5 g6 a5 b5 c5 b6 a4 g7 e4 g5 c4 g6 a3 Kd2 h4 Qe2 c3+ Ke1 e3 Qh5 a2 Bg2 f4 Nf3 e2 Bb2 c2 Nc3 c1N Nd2 h3 Na4 Nf6 g8R h2 g7 Rh7 Rh8 Nc6 b8R Ne4 g8B Ng5 b7 Qe8 Bc3 Rf7 Bh7 Nh3 Rf8 Rg7 Rf5 Ra7 Rb1 a1R Rb5 Rg8 Rc5 Rb1 Ra8 Rb4 b8R Rc4 Ba1 Ba6 Rc8 Qe4 Re8 Rb7 Rab8 Rg6 Rh8 Rg8 Rbf8 Qb1 Re8 Qb5 Re7+ Kc8 d7+ Kc7 d8B+ Kd6 Re8 Kd7 Rg1 h1B Bf6 Kd6 Ra8 Kd7 d6 Ke6 d7 Qa5 d8R Qb5 Be4 Bf3 Rg6 Bg4 Rh6 Bf3 Nf1 Bg4 Bg2 Nd3+ Kd2 Nde5 Ke1 Bf3 Nd2 Be4 Qf3 Bc2 Rac8 Bd1 d5+ Kf7 d6 Ke6 d7 Qb2 Rg5 Qb5 Rgg6 Kf5 Re8 Na5 d8N Nc6 Ne6 Rd4 Qd5 Rc4 Bg5 Kg4 f3+ Kg3 Rf6 Qb1 Ra8 Qb5 Rad8 Qb1 Bd3 Nf7 Nc3 Re4 Na4 Qb2 Qf5 Nfe5 Qg6 Bc4 Qh5 Qb5 Rff8 Rd4 Bh7 Bd3 Rf5 Rc4 Nb3 Rb4 Kd2 e1Q+ Kc1 Qe4 Kd2 Rc4 Bf6 B3e2 Ke1 Qb1 Nd2 Qd3 Nc7 Qe4 Ne6
R3nn1N/qB3n1b/2rr2qN/3NpN1B/8/1KBP4/r2N3R/QBbk1R1N b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 g4 Kd6 b4 h5 b6 c5 g6 a5 d3 e5 Kd2 a4 Kc3 h4 f6 a3 b5 h3 f5 c4 g7 Kc5 g5 a2 f7 h2 d6 Be7 f8N Na6 d7 Rh4 g6 Qe8 d8N Bf6 b7 Qf7 b8N Ne7 g8B Nc6 g7 Ra7 b6 Bb7 Ng6 Qe6 Nf7 Ra8 Bd2 Qc8 Be2 Qc7 Ngh8 Bd8 f6 Rd4 Nh6 Rd6 f7 Bg5 f8R Nd8 Nc6 Nf7 Nd4 Be4 b7 Bh7 b8N Qa7 Nh3 Nc7 Nf2 Ne8 Ndf5 Kd5 Kc2 c3 Kb3 c2 Nd7 c1R Bh5 Rcc6 Bc3 Bc1 Nf6+ Kc5 Nd2 Kb5 Rf1 h1Q Nd5 Qg2 Rh1 Qg6 Rh2 Kc5 Nh1 Kb5 Kc2 Ka4 Qe1 Ng5 Be6 Nf7 g8B Ka3 Bc8 Ka4 Bb7 Ka3 Rb1 a1N+ Kd1 Nb3 Kc2 Nc5 Rb5 Ka2 Ra5+ Ba3 Ra4 Nd7 Rf4 Bc1 Rf3 Nef6 Rc8 Nf8 Qg1 Ne8 Qd4 Qc5 Rd8 Ra5 Ra8 Qa7 Qg1 Bb2 Qd4 Ka1 Kb3 Ra2 Ne4 Kb1 Nd2+ Kc1 Qa4 Kd1 Qa3 Bc1 Qb2 Qf2 Qa1 Nd8 Nf4 Qf7+ Kb4 Qg6 Bd5 Rc2 Ba2 Nf7 Bb1 Qa7 Nd5 Ra2 Kb3 Qa6 Nb4 Qa5 Nd5 Qa7 Rf1#
1B1B1bBB/1N5Q/2bRn1NP/2R1B1Bn/N1rR1pK1/2rq4/1r1q4/2kR3q b - - 0 1 illegal: No possible last move, all moves rejected
1n1q2R1/3bb2K/2R1Pkr1/1B2RRN1/1B3rr1/R1Q2N1n/1nB1q2p/1RNN4 b - - 0 1 illegal: No possible last move
3R2nk/1K2Q3/RR2P3/3BR1R1/1B2rNnR/rbq1pNq1/B1qNnN2/6b1 b - - 0 1 illegal: No proof kernel
1Nr1B1NB/qQnq2RK/BN1P3p/1b3nN1/BR6/bN5k/3b4/2q1R1rN b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Ke4 e5 g4 a5 b4 c4 d4 c3 f4 c2 b6 h6 g6 a4 b5 a3 d6 a2 d5 Ne7 b7 Ra6 g7 Ng6 g8B Bg7 f6 Bf8 Kf5 e4 b6 e3 f7 e2 g5 e1B Ne2 Rh7 Bb2 c1Q Ng3 Ra8 Ba6 Qcc7 Qb3 Rh8 Nd2 Be7 f8N+ Ke8+ Ne6 Kd7 Bf7 Qg8 Rg1 Nc6 b8R Qh7 b7 Nd8 Nh1 Bh4 Rae1 Nf8+ g6 a1Q Ng5 Nde6 Be8+ Kd8 d7 Rg8 Bh8 Nc5 Qb1 Qa3 Nb3 Qg7 Qb2 Qc3 g7 Nfe6 Kg6 Qc1 f5 Ne4 f6 Nd6 f7 Nf5 f8N Bd6 Rg2 Ke7 d8N Bd7 Kh7 Bb5 Nd7 Qa2 Nb6 Qd7 Qb1 Kf6 Nc6 Nc7 Ne7 Ba3 d6 Bf2 Rg4 Be3 Rb4 Qa1 Rd8 Rc8 b8N Bd2 Qe4 Qe6 Rd7 Qd4 Qg2 Qde3 Qb7 Ke5 Nc4+ Kf4 Nb6+ Qd4 Rf1+ Kg4 Re1 Rf8 g8B Kh4 Bgf7 Rg8 Bh5 Rg6 Bd1 Rg8 Nf7 Rg1 Ng8 Kh3 Re7 Qd7 Ng5+ Kh2 Rg7 Qe3 Nd4 Qf2 Ba4 Qe3 Nf7 Kh3 Nb3 Qf2 Nd5 Qa7 Ng5+ Kg2 Nb6+ Kh2 Nf7 Kh3 Ng5+
k3RBN1/1p1RqqrB/P3B3/q2Nb3/1QB1Nr1n/1b5b/RR2n3/3RKR2 b - - 0 1 illegal: No possible last move
BKbN4/R1B3NN/5NQ1/k2nb2N/4B1Nr/3RRnp1/4n1Pq/1br3nR b - - 0 1 illegal: No possible last move
b1BB1N1B/B2Q1K1R/RB1rn3/2rNbbr1/3n4/b2N1Pk1/p1N5/Rq4B1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 a5 g4 e5 d4 h5 b4 e4 b6 e3 f3 a4 f6 Kg6 f7 h4 b5 a3 b7 e2 d6 e1R Kd5 a2 b6 h3 d7 c4 Ne2 c3 Ke6 h2 d5 c2 d6 Nc6 b8B Ra3 b7 Na7 Bh3 Rb3 Na3 Rb5 Be3 c1B Nf4+ Kh7 g6+ Kh6 g7 Kg5 Nd3+ Kh4 g5 Rh6+ g6 Kg3 Nc2 Nc6 Ba7 Qb6 b8B Nge7 g8R Bg7 f8N Bb7 d8B Ba3 d7+ Be5 Kf7 Rg1 g7 Nd5 Bf5 Rg2 Bg1 Nd4 Bdc7 Nf4 d8B Rd6 Bc8 Ra5 Qd2 Qb1 Bcb6 Be4 Rh8 Nfe6 g8N Rb5 Rh6 Rc5 Ne7 Bc6 Nd5 Ba8 Be3 Rg1 Rh7 Rg2 Re1 h1B Bg1 Rf2 Re4 Bg2 Reh4 Re2 R4h6 Bh3 Bb8c7 Re3 Bf6 Re1 Bcd8 Bf5 Bh8 Re4 Qg5+ Rg4 Qe7 Rg8 Qd7 Rg5 Rh4 Nb3 Ra4 Nbd4 Ra6
1BRR2BB/2Rn1N1K/1brn2PN/5kNb/4bB2/3r1R1p/3QBq2/3Bb2n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 c4 d4 a4 g4 c3 b4 a3 d6 h4 b6 a2 d5 f6 Kg6 f5 e6+ Ke8 e7 Kd7 e8R f4 b7 c2 b5 h3 e5 f3 b6 f2 Nf3 Bg7 Bf4 c1B Nbd2 Nf6 Nh2 Ra6 Ndf3 Ra7 Qd2 Rh7 Be2 Rh4 Rf1 Nh5 Kh7 Ra3 g6 Qe7 g5 Qf7 Ng4 Bh8+ g7 Qf5+ g6 Rd3 g8B Bb2 Rad1 a1N Ng5 Nc2 Rc1 Ne3 Bd1 Bd4 Rf8 Nc6 b8B Nc4 b7 Bb6 Ba7 Bf6 b8B Bb7 Rc8 Bfd8 Be2 Ba5 Bc5 Bdb6 Bd4 Qf8 Rc3 Qf6 Rfc1 f1B Bd1 Be2 Rc7+ Kd8 d7 Ke7 e6 N6e5 d8N+ Nd7 Ndf7 Nd6 R1c2 Qf5 Bh8 Qf6 Ra3 Qd4 Rc8 Qf2 R2c7 Ng3+ Ngh6 Bh5 Ng4 Nh1 Be2 Ne8 d6+ Kf8 Bd1 Be4 Be2 Rd4 Rf3 Rd3 Qb2 Be1 Qd2 Nc5 d7 Ke7 d8R+ Nd7 Nfe5 Kd6 Nef7+ Kd5 e7 Nd6 Ngh6 Rg4 e8B Rg3 Qb4 Rc3 Ng4 Rc6 Qd2+ Bd3 Ne4 Ke6 Neg5+ Kf5 Bd1 Be4 Be2 Rc4 Bd1 Ne5 Bc6 Nd7 Bb5 Rc1 Bbe2 Rc6 Rb3 Rd3 Ra3 Rd5 Rf3 Rd3 Ngh6#
2Nq4/B2k3P/bRrNR2N/K2Qpr1n/1BRn1n2/2RR2b1/4B2n/R1B2r2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 a5 d4 e5 Kd2 g5 Kc3 c5 f4 c4 h4 g4 b6 a4 h6 a3 h5 a2 d6 g3 d7+ Ke7 b7 g2 f6+ Ke6 b5 Bc5 b6 Na6 b8B Be7 f7 Bb7 f8N+ Kd5 f5 Kc6 d5+ Kc5 d6 Kc6 h7 Ra7 f6 Bc8 b7 Nh6 f7 Nb4 Be2 Ra4 Rh4 Nf5 h6 Ng7 Ng6 Qb6 f8B Ra6 d8R Qc7 d7 Nd3 Nf3 g1N Re8 Nf4 d8R Qd6 Nbd2 Qd5 Nh2 Ng2 Ne4 Nf3 Ba7 Nh5 b8R Ngf4 Ng4 Nh2 Rb6+ Kc7 Rh3 Bh4 Kb4 c3 Ree6 c2 Nd6 Bg3 Ne7 Rg8 h8R Rg5 h7 Rf5 Rh4 Bb7 Rc8+ Kd7 Rc3 Qd2 Nh6 Qd5 Ba3 c1N Nec8 Nb3 Bc1 Qd3 Qh1 Nd4 Qd5 Qd1 Rg8 Qd3 Rh3 Qd2 Rg4 Qd1 Rb5 Rc6 Rb6 Ba6 Ka5 Be1 Rd3 Bg3 Rab1 Qd2 R1b4 a1R+ Ra4 Ng6 Ra2 Qg5 Rf4 Qd8 Re4 Rb1 Ra1 Ngf4 Be7 Nc2 Rec4 Nd4 Ba3 Rg1 Bb4 Rf1 Bg5 Ng2 Be3 Ngf4 Bc1
2Bn4/K1B1kB1Q/2qb2rB/NN3rbR/1BR3p1/PbNn4/2N1b3/3RBq2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 c5 Ke3 e5 h4 b5 f4 g5 d4 e4 a6 b4 a3 b3 a7 c4 h6 c3 h7 c2 d6 g4 d5 b2 Kd4 e3 Kc5 e2 h5 e1Q f6 Qd2 f7+ Kd7 h6 Nc6 f5 Nge7 f6 Qc7 Nf3 Qg5 Bc4 Qf4 Nc3 b1B Nd4 Qg3 Bd2 c1B Be1 Bd3 Qc2 Qd8 Rh5 Bb2 Rd1 Qe8 Kb6 Kd8 d7 Rg8 h8R Rg5 h7 Bh6 f8B Ng8 f7 Qh4 Bb4 Nge7 f8B Rf5 Rg8 Bbc1 h8N Bhe3 Bh6 Re5 Rg7 Be2 Qh7 Bed2 Nc2 Bb7 Ba2 Rb8 a8B Rf5 Rf7 Bc8+ Bb7 Ne5 Ka7 Qh3 Rf8 Nd3 Nf7+ Kc7 d8B+ Kd7 d6 Bf4 Bb6 Qf1 Bc7 Bg5 Ba6 Bcf4 Rg8 Bb7 Rg6 Bd5 Bc8+ Kc6 d7+ Bd6 Re6 Bb3 Re4 Rb6 Rd4 Ng6 Re4 Ngf4 Rd4 Ne6 Rc4+ Bc5 Nd6 Nd8 Ndb5 Qe4 Nb1 Kd5 N1c3+ Ke6 Bb1 Qc6 Ba2 Nf7 d8N+ Ke7 Nb7 Bd6 Bg7 Nd8 Na5 Kf7 Bf8+ Kf6 Bg7+ Ke7 Bh6+ Rf7 Re4+ Be6 Rh4 Qe8 Bf2 Bc5 Bg7 Rf5 Rh5 Qd7 Rd4 Bf7 Bh6 Rg6+ Ka8 Bd6 Ka7 Qc6 Be1 Ke8 Bd5 Be6 Bf3 Ba2 Bd5 Bb3 Bf7+ Ke7 Rc4
B2kB3/B1n3Qq/R1nqr3/N7/N3p1nb/1b5K/P1RRN2n/NN1NBr2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 e5 d4 c5 f4 g5 Kf2 b5 Kg3 e4 a6 g4 h6 c4 h7 b4 f6 b3 f7+ Ke7 a7 b2 h5 c3 f5 c2 f6+ Kd7 h6 Kc7 d6+ Kd7 d5 Qb6 Bd2 c1N Bb5+ Kd8 d7 Ne7 Ne2 Nb3 Be1 Na5 Nec3 Na6 Qd4 Qc6 Nd1 Rb8 a8B Kc7 d8N Kd7 d6 Ng6 Nb7 Nb3 Na5 Bg7 f8N+ Ke8 d7+ Kd8 f7 Nc7 Ne6+ Ke7 f8N Qb6 d8R Bf6 Nd7 Re8 h8N Ne5 h7 Qd6 Ndc5 Bh4+ Kg2 g3 Na4 Ng4 Kh3 g2 Nec5 Rf8 Be8 Be6 Qg7+ Rf7 Rc8 Nd4 Ncb3 Rb6 Rh2 g1Q Rc2 Nc6 Rb8 Ra6 Rb6 Kd8 Ng6 Rf1 h8B Qf2 Rd2 Qf5 Nf4 Qh7 Ne2 Bd5 Qf7 Bc4 Bd4 Bd5 Qg7 Be6 Nbc3 b1N Rc2 Nd2 Nb1 Nf3 Bc5 Ra7 Ra6 Nfh2 Rd2 Rb7 Ba7 Rb6 Na3 Qf5 Rc1 Qh7 Na1 Bb3 Rc5 Rb5 Rc4 Re5 Nb1 Re6 Rcc2
KnR1n2N/2q3RR/2B2q1P/Np2nBr1/Rb6/Nb3RRn/kr3B1Q/2B5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 a4 Kb4 h4 e5 d4 g5 f4 b5 a6 c5 f6 g4 d6 g3 Kd5 e4 f5 e3 f7 e2 d7 e1Q a5 c4 a7 g2 h6 c3 f6 c2 h7 Kb3 a6 Bh6 f8R Be3 h5 Qd2 f7 Qc7 d8R Nh6 Nf3 g1N Bd3 Nd7 Ne5 Qb7+ Nc6 Rg8 h8N Qe1 Bf5 Rg6 Rg8 Nb8 f8R Ne2 Na3 Qc7 Na5+ Kc3 Rg7 Qeg3 Qg1 Bf2 Qh2 Bd7 Rc8 Ng8 h6 Be1 Rg1 Qf2 Rg3+ Kb4 Rff7 Bc3 Rh7 Ng1 Rfg7 Bd2 Rb1+ Ka4 Rbb3 Rg5 Rbf3 Bc6+ Kc5 Qf1 d5 Nf6 d6 Ne8 d7 Nh3 d8B Bb4+ Kd4 Bd7 Kd5 Qf2 Be7 Qfb6 Bc5 Qf6 Bb2 c1N Bf2 Nd3 Bc1 Qc2 Qh1 Ne5 Qh2 Bc3 Kc5 Be6 Kb6 Bb4 Kb7 Bb3 Rc5 Nbc6 Rc4 Rd8 a8B Nb8 Rc8 Rd2 Ka7 Qc3 Bc6 Rb2 Kb7 Qc5 a7 Qcd6 a8R Qc5 Nb1 Qcd6 Ra7 Qdd8 Ka8 Qc7 Nd2 Ka3 Ndc4+ Ka2 Na3 Bd5 Nb7 Be6 Ra4 Bb3 Na5
1B1N4/4KR2/QB4B1/1n1pR1N1/3PqrB1/1rR1N1kn/q2bqBBq/n3R3 b - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 g5 a4 d6 e4 g4 exf5 g3 b6 Bd7 b5 Nh6 b7 Bc6 b6 Bb5 axb5 Qc8 hxg3 Qd8 g4 Ng8 g5 Bg7 Ra4 Bh6 Ra1 Bf8 Ke2 Kd7 Ke3 e5 Ke4 h5 Kd5 a5 g4 c5 f4 a4 d4 a3 f6 h4 g6 h3 g7 c4 f7 h2 g5 e4 g6 e3 f5 a2 f6 e2 Nd2 e1N Qe2 c3 Bg2 c2 Nf1 Qe8 Nh3 Rh6 Ne3 Qd8 Ng5 Nf3 Re1 Nc6 b8R h1Q b7 Ng1 b6 Qc7 Qa6 Be7 f8B Na7 f7 Nb5 Rc8 Nh3 b8B Rh4 b7 Nh6 g8B Nf5 g7 Rf4 Bh7 Ra7 Rb1 a1Q g8B Qa2+ Rb3 Qf1 Bg6 Qe2 Re8 Bf6 Bd2 c1Q Re5 Q1c2 Ba5 Bg7 Bb6 Bh6 Bg7 Qcb1 f8R Qcc2 Be6+ Ke7 Nc4 Ne3+ Kc6 d5 Rc3 Qcd2 Rff5 Nc2 Ne3 Na1 Rf7+ Ke8 Bf8 Qe4 Bfd6 Qdc2 B8c7 Qcd2 b8N Rb7 Kc5 Qdc2 Nc6 Qcb2 Bb8 Qbd2 Bf1 Qh2 Bg2 Qe2 Re7+ Kf8 Bg4 Kg8 Nd8 Kh8 Bf7 Kg7 Be8+ Kf6 Rf7+ Kg6 Bdc7 Bf8+ Kc6 Bb4 Kd7 Ba5 Ke7 Kh6 Bf5 Kh5 Bed7 Kh4 Bg6 Kg3 Bg4 Bb4+ Ke8 Na3 Ree7 Kh4 Rd3 Qh1 B6a7 Bd2 Rc3 Rf3 Bh2 Rb3 Bb6 Nb5 Bg1 Rf4 Re5 Kg3 Ke7 Qh2 Bf2+
1r3BBK/2n2N2/QB1N1BRB/pR2n1n1/qbB3kN/4r3/P2n1N1R/r2r4 b - - 0 1 legal: proof: g4 d5 e4 c5 exd5 f5 b4 g5 bxc5 Bd7 h3 Bb5 gxf5 g4 Ba3 g3 Bb2 Be2 Bc1 Bg4 hxg4 Qb6 Rh5 Qa5 Rh1 Qd8 Ke2 Kd7 Kd3 a5 Kd4 h5 Ke5 b5 f4 g2 d4 h4 c4 b4 g5 e6 f6 h3 c6+ Kc7 c5 h2 g6 b3 f5 b2 g7 Nh6 g8B Ra7 d6+ Kc8 d7+ Kc7 f7 Qe8 Kf6 e5 d8N e4 d5 e3 d6+ Kc8 d7+ Kc7 Nd2 b1N Bc4 e2 Ngf3 e1R Qe2 g1N Bb2 Rf1 Ne4 Rf2 Nh4 Be7+ Kg7 Ra8 f8B Bd6 f6 Rf5 f7 Rf1 Nf2 Na6 Bf6 Nd2 Rb1 Rd1 Rb5 Ngf3 Rg1 h1R Rg6 Ng4 Qe6 Rh5 Qe2 Rg5 Kh8 Rh5+ Bh6 Re5 f8B Re3 Nf7 Nge5 d8B+ Kc8 c7 Kd7 c8R Nc7 Rcb8 Ng5 Rb2 Ra1 R8b5 Rhd1 Rc2 Rb8 c6+ Kc8 Qd3 Bb4 Qe2 Nd5 c7 Kd7 c8N Ke6 Bb6 Qc6 Ng2 Kf5 Nh4+ Kf4 Qf1 Nc7 Ncd6 Qd7 Qh3 Qc6 Qc8 Qe4 Rb2 Qc2 Qa6 Qa4 Nfe4 Kg4 Rc2 Nb1 Rh2 Nd2 Nf2+
B1b1B3/Q2R1qBp/1k2r1n1/NrR2p2/1q3bR1/BN1NbP2/n3BB2/R6K b - - 0 1 illegal: No possible last move
2b1N3/rN4B1/N2K1R2/3Np3/1n2q1Bk/N1Q1R3/nP1nNBnp/b3r1RB b - - 0 1 illegal: No proof kernel
4R2q/NNKBr3/N2N1B1P/4Rn1p/k1R4r/brB1Q3/rB2b2p/B1n1B3 b - - 0 1 illegal: Other
1Nn1kBBQ/1R1PB3/KR1n2b1/1r5N/N1pB2b1/1N1N1b2/pR2r3/q4Nb1 b - - 0 1 illegal: No possible last move, all moves rejected
B2b2NN/r2B1q2/4p3/RKR1B3/R1N2p2/2QbBN2/q4P1b/rB1kBnq1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Nd7 exd7 Kg6 Ne2 Bg7 Ng1 Bf8 Kd2 Kf5 Kd3 a5 Kc4 Ke4 b4 h5 g4 f5 b6 c5 b5 f4 b7 a4 b8N a3 b6 h4 g6 h3 g5 a2 g7 h2 g6 Rh6 b7 Rh5 Nd2+ Kf5 Bd3+ Ke5 Nc6+ Kf6 b8B Kg5 Qe1 Kg4 Ngf3 Ra7 Bb1 Qe8 d8R Qf7 d7 Nf6 g8B Ne4 g7 Ng3 Kb5 c4 Be5 c3 d6 c2 Nc4 Nf1 Be3 c1Q Qc3 Qc2 Re8 Rh3 d8B Bf5 d7 Bd3 Ba5 Rg3 d8N Rg1 Bh7 e6 g8B Bg7 Be4 Bf6 Ne7 Bh4 Ba8 Bg3 Bh7 Qd2 Ng8 Qe2 Bc2 Qd2 Rc1 a1B Ba4 Qa2 Re7 Bb2 Rc7 Ba3 Ra1 Be7 Rc5 Bf6 Nc6 Bd8 Nce7 Rg2 Rg1 h1Q Ng6 Bh2 Nh8 Rg3 Qc1 Qg2 Be1 Rh3 Rh1 Qg1 Qc3 Rh5 Bb8 Rd5 Be5 Rd6 Bg6 Rda6 Bge4 Bg3 Rh5 Bh2 Bc2 Ra3 Bec6 R3a4 Bd7 Ra3 Bb1 R3a4 Nd2 R4a6 Ne4 Kf3 Ng5+ Ke2 Nf3 Kd1 Rf5 Qe2 Ra4 Qd2 Rb4 Ra1 Ra4 Qa2 Bc7 Ra6 Rce5 Qg3 Kb4 Qf6 Rea5 Qf7 Rfc5 Ra7 Kb5 Qg1 Be5
1nq1bN1b/1n1Nn1QN/2B1p2k/n3P3/R1RB1R1r/1R3pR1/bK5B/R3N3 b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 b4 f5 e4 h5 d4 c5 Kd2 a4 Kc3 f4 d6 h4 d5 c4 b6 f3 b5 h3 e5 a3 b7 h2 b6 a2 Na3 Rh5 Nc2 Rh8 Bf4 Nc6 b8R Bh3 b7 Rh5 Kb2 Rh6 Ne1 Bg2 Nh3 Qc8 d7+ Kd8 Qe2 Nf6 g8R Nd4 g7 Rh4 g6 Nf5 Ng5 Bh3 Qg2 e6 Nh7 Ke7 d8R Bg4 Rg1 h1B Bh2 Nd7 Qg3 Qc7 Rdc8 Bh5 Rg2 Qd8 d6+ Ke8 Rh8 Ne7 g8N Bg7 Nf8 Bf6 g7 Kf7 Rd2 Bg2 Rd4 Bh3 Be2 Bf5 Rf4 Bb1 Bd1 Qc7 Ba4 Qc5 Ra8 Nb8 d7 Qc7 d8B c3+ Ka3 c2 Bc6 c1N Kb2 Bhg6 Raa4 Nb3 Rh7 Qd7 Bb6 Na5 Bd4 Qe8 Rc7 Qc8 Qg5 Na6 b8N Nb7 Nbd7 Nb8 Ra8 Bbd3 Ra4 Bc4 Be4 Bb3 Rcc4 Bh5 Bc6 Bg6 Rac1 a1N R1c3 Ba2 Rb3 Rg4 Rh3 Rh4 Rg3 Bh5 Rb6 Nb3 Qh6 N3a5 Rb3 Nf5 Rg1 Bd8 Ngf6 Ne7 g8R Bg6 Bd5 Bh5 R8g3 Bg6 Qh5 Kg7 Qg4 Kh6 Bc6 Be8 Rf1 Nf5 N6h7 Bf6 Nd3 Ne7 Ra1 Bg7 Ne1 Bh8 Qg7+
qN1n4/bR1N1k2/1p1Rr3/3bB1nr/2bpN3/2pR2Q1/1N2KPN1/R1N3BB b - - 0 1 illegal: No proof kernel
N1NQ2Rn/2RKBpnp/7P/3N3p/Rb1kBr2/N1RRR1n1/2b2q1B/7b b - - 0 1 illegal: Other
NB4Bn/2KpB2N/RR4B1/n1B1pqNb/RQ1r4/6pN/q4bPq/4B2k b - - 0 1 legal: proof: e4 c5 a4 g5 h4 b5 axb5 f5 exf5 a5 d4 g4 dxc5 Ra6 Nc3 Rg6 Nb1 Rg5 hxg5 Bh6 Qd3 Bg7 Qd1 Bf8 Kd2 Kf7 Kc3 e5 Kc4 h5 Kd5 a4 c4 a3 f4 g3 b4 h4 b6 h3 b7 h2 f6 Kg6 b5 Kf5 c6 a2 f7 Bg7 Kd6 Ke4 f8B Rh5 g6 Rh6 c7 Qe8 f5 Bf6 b6 Qf7 c5 Nc6 b8B Na5 c6 Bg7 f6 Bb7 c8R Qd5+ Kc7 Rh5 f7 Qc5 Qa4+ Qc4 Nd2+ Kf4 Ndf3+ Kg4 Bd3 Rh6 Qb4 Qd4 Nh3 Qc4 Bc5 Qe4 f8N Rh4 Nfg5 Nh6 Nfh7 Bf8 g7 Nf7 g8B Nh8 Bd2 Qf4 Rab1 a1Q Bg6 Qa2 Be1 Be7 Rf1 h1Q Ra1 Qe4 Rf6 Qh2 Ba7 Ba6 b7 Be2 b8B Bf8 Bd6 Be7 Bd4 Qf5 Re8 Bf8 Ree6 Bd1 Be7 Bf3 Nf2+ Kf4 Rd6 Bh5 Bc5+ Qc4 Rd4+ Ke3 Nfh3 Ke2 Ra4 Kf1 Rd1 Rd4 Rda1 Nb7 Ra6 Na5 Ra4 Qe2 Kd8 Qb2 c7 Qa2 c8N Bh6 Rfb6 Bf8 Nf4 Kg1 Kc7 Kh1 Nfh3 Bh6 Rf6 Bf8 Nb6 Bh6 Na8 Bf8 Rab6 Bh6 Ne4 Be3 Neg5 Bg1 Ra6 Bf2 Rfb6
1k1R2r1/4qBR1/1p4Kb/q5pN/Rn1p1B2/1R1P1nqN/b1R1R2N/4B1QN b - - 0 1 legal: proof: e4 a5 c4 h5 b4 f5 bxa5 b6 exf5 h4 c5 h3 c6 Nf6 gxh3 Ra6 h4 Ra7 h5 Rb7 cxb7 Ng8 Ke2 d5 Kf3 Kd7 Kg4 g5 a4 c5 f4 Kc7 h4 e5 a6 c4 a5 c3 h6 d4 Kh5 e4 h7 c2 f6 e3 a7 e2 a8R e1Q f5 Bc5 f7 Qf8 a6 Qee7 f6 Nc6 b8B+ Kd8 a7 Bd7 Rh2 Kc8 Bg3+ Kb7 Rd8 Qe1 a8R Bc8 Ne2 Bh3 R8a4 Qe7 f8R Bg4+ Kg6 Be6 h5 Qc7 h6 Bb3 f7 Qb8 R1a3 Nb4 Rd6 Nd5 Rc8 Bb4 f8N Bc3 Nd7 Ba5 Nf6 Ba2 Nh5 Bb4 Rb3 Qf2 d3 Qf4 Bg2 Ba3 Be1 Qa7 Nd2 Qg4 Nf3 Qb8 Neg3 Ndf6 Bf4 c1Q Nh1 Ne4 Rc2 Nd2 Bh3 Bc5 Re2 Qc7 Nh2 Qg3 Be6 Qe7 Bf7 Qa3 Qc1 Nf6 Qa1 Ra8 h8N Rc8 h7 Nf3 Qc1 Re8 Qe3 Bb4 Qg1 Rg8+ Kh6 Re8 Ng6 Qh4 h8R Nh7 Be3 Qe6 Ra5 Nf6 Rh7 Nd5 Rdc6 Qg3 B3d2 Qee5 Ngf4 Kb8 Kg6 Bf8 Nh3 Qae7 Bf4 Bh6 Rg7 Rg8 Ra4 Nb4 Rd6 Qa5 Rd8+
2N2rn1/2B4N/N1rRQBk1/5Rp1/NP1K2B1/2p3pB/3RbBqp/2B1n1b1 b - - 0 1 illegal: Other
Qr2RR2/B3b2B/1R3np1/2p3pN/1N1qR1rb/2B1B1Pb/4K2p/1BBN2k1 b - - 0 1 illegal: Other
1B1r2rB/RN1n2R1/5Bn1/RQ2Bp1P/2r2B1k/4N1qn/BQ1b1R2/3K4 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 b6 h5 gxh5 a5 b3 a4 Bg2 a3 Bh3 Bd7 Bf1 Ba4 bxa4 Qf6 Bh3 Qd6 Bf1 Qd8 d4 Ke7 h4 g5 e4 f5 b7 c5 e6 Kf6 e5+ Ke7 a5 g4 h6 c4 a6 c3 h7 a2 a7 c2 h5 g3 d6+ Ke8 d5 g2 d7+ Ke7 Nh3 g1N Na3 Nh6 Qd2 Rg8 h8B Qa5 d8B+ Ke8 e7 Kf7 e8R Qc7 d6 Qd7 Be7 Nc6 b8B Ne2 Nc4 Ned4 Rh2 Qd8 d7 Qc7 d8B Qd7 Ne3 Rg3 Rf2 Qc7 Nf4 Nb3 Nd3 Ng4 Nc5 Bh6 Nb7 Nc5 Rg8 Nd7 Rg7+ Ke6 Bb2 c1R+ Ke2 Rc4 Kd1 Qd6 Bdc7 Qa3 Bd4 Qc3 Qb2 Rg2 Nc2 Bd2 Ne3 Qa3 Bd3 Rg3 Bb1 Qd3 Bf6 Ne7 Bc5 Ng6 Bce7 Nh2 Bg5 Nf3 Bf4 Rg4 Bh6 Rgd4 Bf4 Ng5 Bcd6 Nb6 Bdc7 Rd8 Bcd6 Nh3 Bdc7 Kd7 e6+ Ke8 Bce5 Nd7 Bbc7 Rac8 a8R Qc3 Ra7 Qb3+ Nc2 Qg3 Ne3 Rb8 Bh4 Rbc8 Bb8 Kf8 e7+ Ke8 Rg8+ Kf7 Rg7+ Ke6 Bc2 Rg8 Bb3 Rcd8 e8Q+ Ne7 Rb1 a1Q Rc1 Qa6 Ba2 Qc6 Ra1 Qa6 Qf8 Ng6 Qc5 Qd6 Be7 Qd4 Bec7 Qf6 Qcb5 Qe5 Bb1 Qc3 R1a5 Qd4 Ba3 Kf6 Ba2 Qc3 Bfd6 Kg5 Bf4+ Kh4 Be7+ Qf6 Bcd6 Rdc8 Bde5 Rcd8 B7xf6+
N4B1r/K2Q2PQ/1n1r3N/N1kQ2R1/1qN4N/4N1bp/Rb2B2b/2q2Q2 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 h4 g5 f4 Na6 f5 Nc5 f6 Ne4 Na3 Kd6 Nb1 Bf5 gxf5 g4 Ra6+ Kd7 Ra1 Ng5 hxg5 Bh6 Rh5 Bg7 Rh1 Bf8 Ke2 Kd6 Ke3 a5 Kd4 h5 b4 e6 b6 h4 g6 g3 b7 g2 b8N a4 g7 h3 b5 a3 b6 c6 b7 a2 Nc3 Rh6 Nf3 Rh7 Ba3+ Kc7 d6+ Kb6 d7 Qc8 d8Q+ Qc7 Rg1 Be7 f8Q Rh5 f7 Rg5 f6 Rg6 Nd5+ Ka7 Nd7 Rh6 b8N Rh8 Nh4 Qd6 Nb6 Nh6 Qg8 Ng4 f8Q Qd7 f7 Qb7 Qh7 Bd6 d3 Be5+ Kc5 Ne3 d4 Nc4 Qdd6 Bh2 Bb4 Qe7 Be2 Kb7 Ba3 Ra6 Ne3 Ka7 d5 Kb7 Rf1 g1Q Rf5 Qh1 Rg5 Ka7 Na8 Qb7 Rb1 a1B Rb2 Qe1 Ra2 Bb2 Qdd8 Qh1 d6 Qe7 Kb4 c5+ Kb5 Qd5 d7 Rc6 Bb4+ Kb7 Qde8 Nb6 Ka5 c4+ Bc5 c3 d8N+ Kc8 Ka6 c2 Ba3 Qed6 Ka7 c1Q Bb4 Qf4 Be7 Rd6 Nbc6 Qfc4 Na5 Qb4 Qb5 Qde4 Qbf5 Qd3 Qff1 Qd5 Qfg8 Kd7 f8N+ Ke8 Nfg6+ Kd7 Nf7 Bf6 Bf3 Bb2 Nh6 e5 Neg4 e4 Qf7 e3 N6e5+ Kc8 Nec4 e2 Nge3 Kd7 Bh5 e1B Be2 Beg3 Bf8+ Kd8 Qh5 Kd7 Qg4+ Re6 Nb3 Kc6 Nba5+ Kb5 Qgf5 Rd6 Qd7+ Kc5 Qxd5+
2BnR3/5Rq1/6Bk/1qpNB1RR/2NN4/bQ2P2n/q2Bn3/N2r2RK b - - 0 1 legal: proof: c4 a5 g4 f5 f4 g5 a4 b5 axb5 e5 fxe5 d5 cxd5 f4 h3 Bf5 gxf5 g4 Nf3 g3 Ng1 Ra6 Qa4 Rg6 Qd1 Rg4 hxg4 Kd7 Nc3 Ke7 Nb1 Ke8 d4 Kf7 b4 Kg7 e6 c5 d6 h5 b6 f3 d7 g2 Kf2 a4 b5 h4 f6+ Kh7 d5 a3 e7 h3 e8B a2 e3 h2 g5 Qc7 d8N Bd6 f7 Qd7 f8R Qb7 g6+ Kh6 g7 Be5 d6 Bd4 d7 Qa7 b7 Ne7 g8R Nd5 b6 Nc3 Qb3 Kh7 Ba6 Qa8 Ne6 Qa7 d8N Bf6 Ne2 g1N N6d4 Be7 Rg5 Rg8 Na3 Qa8 N8c6 Na4 Bg6+ Kh6 Nf4 Nc3 Ne5 Nce2 Bd2 Nc6 b8B Bf6 b7 Nd8 Nac2 Nh3+ Kf1 f2 Kg2 Qa7 Rag1 a1Q Nc4 Qa2 Be5 Bh8 b8R Qg7 Rf7 Re8 Nd5 Rf8 Kf3 f1Q+ Ke4 Re8 Bc8 Re6 Ra8 Rd6 Na1 Qfb1+ Kf3 Qbb2 Qc2 Qb5 Qb3 Rd7 R1g4 Rd6 Kg2 Rd7 Rg1 h1Q+ Kf1 Qe4 Rgf4 Qf5 Kg2 Qg4+ Kh2 Qh5 Kh1 Rb7 Ra6 Qe8 Bd6 Qh7 Nc6 Bg7 Qb5 Rb6 Rh4 Bb2 Be5 Ba3 Nd4 Qg7 Raa7 Rf6 Qb3 Qb5 Rae7 Rf1 Re8 Rd1 Rhxh5#
2N5/1b4Br/q3B1QR/4k1bN/P1rnb3/2B3nN/n2RR2B/R1b1KN1N b - - 0 1 legal: proof: b4 a5 e4 b5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 Ra6 Qxa4 Bb7 Qd1 Bc8 a4 Ra8 Bxb5+ Qd7 Bf1 Qd8 g4 Kd7 d4 Kd6 f4 h5 b5 e5 b6 c5 g6 c4 g5 h4 f6 h3 b7 h2 f7 e4 g7 e3 f5 e2 f6 c3 g6 c2 Nh3 Nd7 b8B+ Qc7 Bd2 c1B Qc2 Ra6 Bc3 Be3 Nd2 Nc5 Nf2 Bb7 Bh3 Bh6 Be6 Bc6 Nf1 Be7 f8R Ra7 f7 Bf4 Re8 Nb7 f8B Nh6 g8N Bb5 g7 Ra8 Qg6 Ba6 Nf6 Nf5 g8N Rh7 Nh5 Ng3 Bg7 Beg5 Ne7 Bc1 Bf7+ Kd7 d6 Qc8 d5 Na5 Bg8 Qc6 Nc8 Nb3 Re3 Nd4 Be6+ Kd8 d7 Bb7 Bf4 Qa6 Re5 Kc7 d8N Ra7 Nf7 Ra8 d6+ Kc6 Rg1 h1B d7 Be4 d8R Kc7 Nh1 Rb8 Kf2 e1N Rh8 Nec2 Rg2 Nb4 Ke1 Na2 Rd2 Nge2 Bh2 Ng3 Nh6 Ra8 Ng4 Ra7 Ngf2 Kc6 Nb6 Kd6 Nh3 Ra8 Qf7 Rc8 Qg6 Bc2 Ree2 Bce4 N3f2 Rc4 Nh3 Bf6 Nc8+ Ke5 Bh6 Bg5 Bf8 Rhc7 Rh6 Rh7 Bg7+
3B4/rBR4P/2rn1B2/5Nkq/2B1B3/1QN5/RKNr2B1/nbQ1Nnrb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 f5 h4 a5 b4 g5 e4 d5 h6 d4+ Kb2 g4 c4 f4 c6 f3 c7 d3 h7 g3 h5 d2 c5 g2 e6 Kf6 b6 a4 e7 f2 e8B Kg5 e5 Kf4 b5 Nh6 b7 Qd7 c6 Nf5 b6 Qe7 h6 Nd7 b8Q Ra7 b7 Ng7 e6 Nh5 Nf3 g1R Ne1 Ra8 Bg2 f1B Ra2 Qd6 e7 Ng7 Bf7 Rg8 e8N Nc5 h8B Ra5 h7 Qg6 Bc4 Bf5 c8B+ Kg5 c7 Ra7 Nd6 Ne8 Nc3 Nb3 Bd4 Bb1 Bf5 Be7 c8B Qh5 Bfe4 Bf6 Nf5 Rg6 Qc7 Bfd3 b8N Nd6 Nc6 Be2 Rh3 Bf3 Nb4 Rh6 Nbc2 Rg6 Bgf1 Bh1 Bcb7 Rh6 Re3 Rg6 Qf3 d1R Bg2 Nd2 Qc5 Nf1 Qa3 Ne8 Qb3 Rd2 Qd1 Nd6 Rg3+ Kf4 Rg5 Rh6 Rg7 Rg6 Rc7 Kg5 Ka1 Rh6 Ba3 Rg6 Bac5 a3 Qc1 Nc8 Be7 Nd6 Bd8 Rh6 Nce3 Rg6 Rc2 a2 Kb2 Rd3 Rf2 a1N N3c2+ Rd2 Qa3 Be7 Qb3 Nf7 Re2 Rc6 Rf2 Ne3 Re2 Rd3 Na3 Bf6 Rd2 Bc2 Ka2 Nd6 Rf2 Bd1 Rb2 Rd2 Kb1 Nf1 Ra2 Bc2+ Kb2 Bb1+ Nac2 Qg4 Re7 Qe2 Rc7 Qh5 B4xf6+
1q3QK1/kN4P1/nB3NRN/2br3B/q3N1BN/4r3/2qnNn1r/Q4R1B b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 Kd7 Ke3 Kc8 Kd4 Kb7 Ke5 c5 Ke6 h5 Kf7 a5 b4 e5 d4 a4 d6 c4 b5 h4 f6 e4 g7 a3 g6 c3 d7 a2 d5 h3 d6 c2 g5 h2 Ne2 e3 Nd2 Ra3 Bg2+ Nc6 Rg1 h1Q Ne4 Qh6 Bh1 Qa8 d8N+ Kb8 b7 Ra7 d7 Nge7 g8B Ra4 g7 Ka7 b8N Qh2 g6 Qg3 Nb7 Nf5 d8N Qf3 Nd7 Rh7 b6+ Ka6 Ba3 c1N Bc5 Rb4 Qd4 Nd3 Raf1 Qg2 Qa1 Rc4 Ne5 Rc2 Nf3 Rd2 Nh4 Nb8 Bd4 Rh6 Bh7 Rd1 g8B Bc5 g7 Ng3 Bf5 Nf2 Bg4 Rh5 Bh7 Rd2 Kg8 Rd5 f7 Rb2 Nf6 Nge4 f8Q Nd2 Bg6 Qe4 Bf7 Qc2 Bfh5 Qa7 Nf7 Qa8 Nf4 e2 Nh6 e1R Ne4 Re3 Ne2 Qa7 Nbd6 Qa8 b7 Ka7 Rg2 Na6 b8N Qb7 Nd7 Qc8 Nb7 Qb8 Qd1 a1Q Ndf6 Qaa4 Qa1 Qc6 Bf5 Q6a4 Rg6 Rh3 Bd7 Rh2 Bdg4 Rb3 Be5 Rbh3 Bc7 Re3 Bb6+
K3QbR1/PR1q2Q1/1br1Q3/qR1r3R/Qq2q2Q/3r2n1/3NNB2/2kB3Q b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 g5 f5 Nc6 f6 Kd6 h3 Bf5 gxf5 Ne5 h4 g4 Kf2 Nf3 Ke2 Ng5 hxg5 Kd7 Kf2 Kd6 Ke1 Kd7 Ke2 Kd6 Kd3 Kc5 Ke4 Kb4 d4 b5 a4 c5 g6 e5 d6 h5 Kd5 g3 Kc6 c4 Kb7 c3 a6 c2 a7 Kb3 d5 g2 a5 h4 d7 b4 a6 h3 g7 h2 d6 e4 Be2 e3 Ra5 Rh5 Rb5 Rg5 Nd2+ Ka2 Bh5 b3 Ne2 Ne7 g8Q Rc8 a8Q g1B a7 Qe8 d8Q b2 d7 Bg7 f8R+ Qf7 Qe8 b1Q d8Q Qb4 Ba3 c1R Qa4 Qe6 f7 R1c6 f6 Nf5 Qd4 Rc3 Qh4 R8c6 Bf3 Qa5 Bc5+ Ra3 Kb8 Qd7 Qb7 Qb4 Ka8 Kb2 Qe6 Rc3 Rb8 Rd3 f8Q Ng3 f7 Rgd5 Qfe8 Bh6 Qh7 Bf8 Qc7 Bf2 R8b7 Bg1 Nf4 e2 Bf2 e1Q Bd1 Kc1 Qce5 Qa5 Qeg7 Qe4 Q7h5 Qeb4 Qhh7 Bd6 f8R Bc5 Rg8 Bf8 Be1 Bb6 Bf2 Be7 Re1 h1Q Re5 Qe1 Rh5 Bf8 Qhe4 Qe3 Qeh1 Qee4 Ne2+
N1rR4/1b2q3/2NB2R1/4R1r1/1nrBbr1r/5kPB/BNR1r1N1/1K2Q2N b - - 0 1 legal: proof: f4 b5 c4 g5 a4 e5 axb5 f5 g3 d5 cxd5 g4 Nh3 Bh6 fxe5 f4 Ng1 f3 Qc2 Nc6 Qd1 Nce7 Ra3 Nf5 Ra1 Bf4 gxf4 g3 Ra5 g2 Ra1 Ng3 hxg3 Qf6 Kf2 Qh4 Ke1 Qd8 e4 Ke7 d4 h5 Kd2 c5 Kc2 a5 b4 f2 e6 Kf6 f5 c4 d6 a4 e5+ Kg7 e7 c3 e8N+ Kf7 b6 a3 e6+ Kf8 b5 a2 d7 Ke7 f6+ Kf8 f7 Ke7 f8R h4 d5 h3 b7 h2 b8B Nf6 b6 Ra7 b7 Qb6 d8N Rh5 Bb2 Qb4 Nc7 Kd6 e7 Ke5 e8B Ke4 d6 Ra6 d7 Ng4 Nh3 g1R Rg8 Ke3 Qe1+ Kf3 Na8 Qb6 Ne6 Qc7 d8R Rg2 Bf7 Qe7 Nef4 Rh4 Rg6 Ne5 Na3 Ra4 Nc4 Nd3 Rc1 a1R Bd6 Rb4 b8N Bb7 Bg8 Ra5 Kb1 Rg5 Nc6 Ra4 Rg1 h1B Rc2 Nb4 Ba1 Rh2 Nb2 Bg2 Ba2 Bh1 Bd3 f1R Bf5 Re2 Nf2 Bg2 Nb6 Ra8 Bh3 Rc8 Na8 Ke3 Nh5 Be4 Nh1 Rff4 Rg2 Kf3 Rg1 Rf8 Nf4 Rf6 Ng2 Rff4 Rf1+ Rf2 Qd2 Rc7 Nc4 Bf5 Re1 Rc8 Re5 Re2 Qe1 Be4 Bb2 Bd5 Rd2 c2+ Kc1 Be4 Bd4 Rb8 Kb2 Rc8 Ka1 c1R+ Kb2 Rc3 Rc2 Qg7 Kc1 Qe7 Nb2 Rc4 Kb1
1KQ1Q1n1/nPQN1rR1/3b3b/n2RN1R1/Br1Q1RQ1/5rQ1/8/r1B2kr1 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nc6 f6 Rb8 f7+ Kd7 axb3 Ra8 b4 Nb8 b5 Bb7 Ra5 Ba6 Ra1 Bc8 f5 g5 b6 Ba6 h3 Bd3 f6 Bf5 gxf5 g4 Bc4 g3 Be2 Qc8 Bf1 Qa6 Nf3 Qc4 Ng1 Qg4 hxg4 Bg7 Nc3 Bh6 Nb1 Bf8 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 Kb5 a5 d4+ Ke4 b4 h5 g5 c5 d6 e5 d7 a4 d8R h4 b7 a3 Kb6 h3 Kc7 h2 b5 c4 b6 c3 d5 a2 d6 c2 d7 g2 g6 Ne7 g7 Nbc6 b8Q Rg8 b7 Nc8 Na3 Ra5 Bb5 Bb4 f8R Bd2 f7 Ke3 f6 Kf2 Qg4 e4 Nc4 e3 Ne5 e2 Ngf3 e1B Ba4 N8a7 Rg1 h1R Qc8 Rgh8 g8Q Ne7 Kb8 Rb5 Qc7 R1h3 Qg3+ Ke2 Q8g4 Ng8 Rb1 Rb6 Rb5 a1R Rd5 Bh6 Rc8 Rb2 d8Q Rb6 Nd7 Rh7 Rg5 Rb3 Nfe5+ Rf3 Qe8 Bb4 Rd8 Rh4 Qd4 Rhf4 Qe6 Be7 Qeg4 Rg7 Rfe8 Bb4 f8Q Bd6 f7 Re4 Rf1 g1R Re7 Rf4 Qe8 Rh7 f8Q Rhf7 Be3 c1N Bd2 Nb3 Bc1 Rh7 Reg7 Na5 R7g6 Rhf7 Rg7 Ba3 Qfc5 Re4 Qc8 Bb4 Q5c7 Bd6 Rf2+ Ke1 Qd5 Rb4 Qdd4 Rc3 Rf3+ Ke2 Rf4+ Rf3 Nc5 Kf1 Rd7 Bf8 Rd5 Bd6 Ncd7
NRqN1BKN/3Qq1Q1/1Q1NN1n1/4q1k1/6nq/1BN1Rr2/3PQ2b/1q4q1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 e4 b3 exf5 a6 f6 Nd7 f5 Nb6 f7+ Kd7 f6 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 h3 a5 Ke2 Ra6 Ke1 Rc6 Qa4 Rc3 Qc2 Rf3 Qd1 Rf5 gxf5 Ba6 Qg4 Bb7 Qd1 Bc8 b6 g5 Be2 g4 Bd3 g3 Bf1 Ba6 Nf3 Be2 Ng1 Bg4 hxg4 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 e5 Kd3 h5 Kc4 c5 b4 h4 d6 h3 Kd5 c4 b7 a4 g5 h2 b5 e4 b6 c3 g6 a3 g7 g2 Bc4 a2 Qe2 c2 Nh3 g1Q Ng5 e3 Nc3 Rh7 Nge4 Qe8 Ba3 c1Q Bb3 Qe7 Rb1 Qg3 Re1 Na6 b8N+ Kd8 d7 h1Q b7 Qf1 Nd6 Nc5 Na6 a1Q Nc7 Rh8 Na8 Nh6 g8Q Qg5 Qh7 Bg7 f8N Qgg1 f7 Qh3 f6 Ng4 Ng6 Ne6 f8N Qh4 f7 Be5 Bc5 Qa6 b8Q+ Qc8 Qbb5 Rg8 Nh8 Bh2 Rb2 Qb1 Qb6+ Qc7 Qhd3 Rg6 Ba3 Rf6 Bb4 Rf3 Qdb5 Qef6 Qa4 Ke7 d8N Qg7 Qd7+ Kf6 Ba3 Qc8 Bc5 Ng5 Nfe6 Nh7 f8Q+ Qf7 Qg8 Nf8 Qc4 e2 Qbc7 Qa2 Bc2 Qe7 N6b7 Bf4 Nd4 Ng6 Qg7+ Kg5 Bb4 Qc5+ Ke6 Qb8 Kf7 Qa3 Kg8 Bh2 Ne6+ Kh5 Bd1 Qb5 Bf8 Qae7 Nd6 Qe5 Rb5 Qc8 Rb8 Qgd4 Bb3 Qg1 Rc1 e1Q Qb6 Q1e4 Re1 Q4f5 Re3 Qfb1 Nec7 Kg5 Qcb5 Qb2 Qe2 Qbb1 Nce6+
r1BB1Kb1/3PBNBp/3R1q2/6kr/QQ5n/1NBb1Q2/qR4Bb/5nQ1 b - - 0 1 legal: proof: a4 g5 b4 g4 h4 d6 b5 Bh6 b6 Bg5 hxg5 Be6 Ra3 Bd7 Ra1 Bc8 e4 d5 exd5 g3 fxg3 Kd7 c4 Ke8 a5 Na6 g4 Nb8 a6 Qd7 axb7 Qb5 cxb5 Kd7 Ra6 Kd8 Ra1 Ke8 Kf2 a5 Ke3 e5 Ke4 Ke7 d4 c5 g6 Kf6 g7 a4 g5+ Kg6 g4 f6 d6 f5+ Kd5 a3 Rh6+ Kf7 g6+ Kf6 Qa4 f4 g5+ Kf5 Bb2 e4 Nh3 e3 Ra2 c4 Nd2 c3 Nb3 c2 Bc3 c1B Rb2 Nc6 b8Q f3 b7 a2 b6 a1Q Kc5 f2 d5 Nf6 g8Q e2 g7 Qb1 g6 Ra7 Qf7 Ne5 g8B Be6 g7 Bc8 Ng5 Nc6 Qh5 Nd4 Be6+ Kf4 g8Q Bd7 Rg6 Bb5 Nf7 Bd3 Rh6 Qa2 Qg1 Ra6 Bg2 Rd8 Bd7 Be3 Bc8 Ra8 Rg6 Rg8 Rh6 Rg5 d7+ Re5 d8B Ng4 Kd6 Nh2 Re6 Nf1 Ke7 Bc1 d6 Rea5 Qh3 Rh5 Kf8 Bd2 Qe3+ Kg4 Qe4+ Bf4 d7 Nf3 Qd6 Nh4 b8B Ne3 b7 Nf1 Qec6 Kf5 Qdb4 Bh2 Bd6 Bc4 b8B Bd3 Bg7 e1Q Rd2 Qea1 B6e7 Qf6 Be5 Kg6 Rd6 Kf5 Ke8 Kg6 Bc3 Kf5 Nh6+ Kg5 Qf3 Bc4 Rb2 Bg8 Qfc6 Ne3 Qf3 f1B Ng4 Bd3 Ne5 Bf7+ Kf8 Nf1 Qbe4 Bb5 Qb7 Bd3 Qbb4 Bg8+ Nf7+
2R2N2/NQ1n1NQb/Nn2q1Rn/1bB1pk2/r1Q5/QQ1bKP2/4B2q/2Q5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 b4 cxd5 b3 f5 e6 f6 Na6 axb3 Ne7 b4 Ng8 b5 Nb8 Na3 a5 Ra2 Kd7 Kf2 Be7 fxe7 f5 Nb1 f4 Ra1 f3 Ke3 f2 Kf3 Ra6 Ke3 Rc6 Kf3 Rc4 Ke3 Rf4 Kd3 Rf3+ exf3 Ba6 Ke2 Bc8 e8N c5 g4 h5 b4 h4 d4 c4 g6 h3 b6 e5 g5 a4 b5 a3 b7 c3 b6 c2 d6 Ke6 d7 h2 d5+ Kf5 g7 a2 g6 Rh6 d6 Nf6 g8Q Rh4 g7 Rf4 Qc4 Ng4 g8Q Re4+ Be3 c1Q Nh3 Nh6 Rg1 h1B Nc3 Qe7 d8N Bg2 d7 Qh4 Nf4 Qg3 Nfe6 Qh3 Qg7 Rg4 N8c7 Rd4 N3b5 Qg3 Na6 Rd6 Nf7 Qh2 d8Q Nd7 b8Q Rd4 b7 Nb6 Qdd6 Qc2+ Qd2 Qb3 Rc1 a1N Qa3 Bd7 Qbg8 Bh3 Na7 Bb5 b8Q Qa2 Qgc8 Nb3 Rg6 Nc5 Nf8+ Ncd7 Qcb7 Rf4 Bc5 Bg4 Bh3 f1B+ Ke3 Bd3 Bf1 Bh3 Be2 Bf1 Qcb3 Ra4 Q8c7 Bh3 Rc2 Bg4 Qdc1 Bh5 Re6 Bg6 Qcc6 Bh7 Qcd5 Qh4 Qdc4 Qe7 Rc6 Qe6 Rc8 Qb2 Rd2 Qc2 Rd1 Qb2 Rg1 Qa2 Rg6 Qc2 Bf1 Qh2 Be2
5kNB/1nK1p3/2B2BBB/1bQ3N1/N3q2N/r1Q5/Pb2R3/qRrbB2q b - - 0 1 illegal: No possible last move
3n3N/N3npQ1/4N2k/R6B/b2q4/Q2R1bBn/1N1P2rB/KB1nBBn1 b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 h5 c4 b5 axb5 h4 cxd5 a6 g3 Nf6 g4 Ng8 Na3 g5 Qb3 a5 Qc3 Bc5 Nf3 Rh5 gxh5 g4 Qc2 g3 Qd1 g2 Nb1 Be3 Ng1 Bf4 Nf3 Bg3+ hxg3 Ra6 Ng1 Rh6 Rh2 Rh7 Rh1 Rh8 e4 Kf8 b4 Kg7 g4 c5 d6 h3 e6 c4 e5 a4 h6+ Kh7 e7 a3 e8Q c3 g5 h2 b6 c2 b7 a2 d7 Nc6 b8B Qc7 d8B Bh3 b5 Nge7 e6 Nd4 b6 Ndc6 b7 Bg4 Nh3 g1N Qf3 Rg8 g6+ Kh8 g7+ Kh7 Qf8 Nd5 e7 Ne5 e8B Nb4 Ba4 Bf5 Bb2 c1N Kd1 Qa5 Qa3 Na6 Bh4 Nd7 Nf4 Qb5 Be1 Nce2 Ne6 Nb4 Nc3 Na6 Bbg3 Ne5 b8N Qd5 Nc6 Qd4 Na7 Bh3 Kc2 Nc5 Nd1 Nb7 Bd7 Kg6 h7 Nd8 h8N+ Kh6 Bb5 Nf4 Bbe2 Bg2 Bh5 Nfh3 Bc3 Ng6 Nb2 Bb7 Bb4 Bc6 Bbd6 Ne7 Kc1 Nf3 Rg1 h1B Bh2 Nh4 Rg3 Ba4 Rd3 Nf3 Bdg3 Nfg1 Qe8 Rf8 g8B Bf3 Bh7 Rg8 Qf8+ Rg7 Rb1 a1N Qg8 Nc2 Ra1 Bb7 Kb1 Ne3 Ra2 Bd5 Ka1 Nd1 Rf3 Bdb3 Be5 Rg5 Bb1 Bb5 Qa4 Rg2 B5g3 Bd5 Rd3 Ba8 Qb3 Bbc6 Ra5 Ba4 Qa3 Bf3 Qg7+
8/2KnR1BN/2n1B1Rb/1B1RN2b/NR2R1Q1/n1NP3k/rp3n2/B2r2b1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 c5 Kf4 g5+ Ke5 b5 h4 b4 f4 c4 a4 c3 a6 g4 h6 g3 a5 g2 a7 b3 f6 c2 h5 e6 h7 Bg7 h6 Na6 f5 Nc7 d6 Nd5 a6 Qa5 Rh4 Qc7 Nc3 Nde7 Raa4 Qb8 Bb2 c1B Nf3 g1N Rae4 Bb7 Bb5+ Bc6 d3 Qb6 Qe2 Qb7 Ba1 Rb8 a8N b2 a7 Nh3 Rb4 Be3 Rhe4 Bf8 f7 Bg1 f6 Bg7 f8R Qc8 Rf7 Nf2 Ne1 Rb6 Nf3 Bf8 Rg7 Ra6 f7 Nf6 Rg6 Rg8 h8R Ra2 h7 Bh6 f8B Rg7 Ng5 Rf7 Bg7 Qg8 Kd4 e5+ Kc5 Rf8 Kb6 Qe6 Rbd4 Qg4 Rb4 Rf7 Re8 Rf8 Red4 e4 h8N e3 Nh7 Ke6 d7 Kf5 d8R Nd7+ Kc7 Bf3 Nb6 Nc6 a8B Rf7 Nba4 Rf6 Qe1 e2 Rde4 Re6 Qd2 e1N Re7 Nc2 Qe2 Na3 Nf7 Re5 Bb7 Rc5 Bc8 Rc4 Nb1 Rc1 Ne5 Rd1 Nbc3 Qg2 Bc4 Bh5 B8a6 Qg4 Bab5 Nf8 Rd5 Nd7 Re3 Kf4 Re4+ Kg3 Rdd4 Rb1 Be6 Kh3 Rd5 Rd1 Qxg4+
1b3n1N/B3R1p1/4QnP1/B1brN1RN/K4B2/2rb3Q/Bb2N3/1B1B2kr b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 f5 axb5 e5 g4 e4 gxf5 e3 h4 Qg5 hxg5 Ba3 fxe3 Bc5 e4 Ba3 e5 Bf8 e4 Kf7 b4 h5 d4 c5 Kd2 a5 Kc2 c4 g6+ Ke7 b6 h4 b7 a4 b5 h3 d6+ Kd7 f6 Ke6 d7 a3 d8B h2 b6 a2 f7 c3 Kb3 c2 d5+ Kd7 d6 Ke6 d7 Ra5 Qh5 Ne7 Ne2 Nbc6 b8N Ng8 b7 Rb5+ Ka4 Nb4 Na3 Rh6 Ng3 Be7 f8Q Rh7 Bf4 c1B Rg1 h1R Ba5 Rh8 Qe8 Nf6 Bd3 Bb2 Rae1 a1B Bb1 Bc3 Qh3+ Ng4 Nc4 Rf8 Re2 Rf7 Qg8 Bd6 d8N+ Ke7 e6 Kf6 e5+ Ke7 Nd7 Na6 b8B Bab2 Ba7 Nb8 Nf6 Rd5 Nfh5 Ba6 Re3 Rf6 Nf7 Bcb4 Nh8 Nd7 Re4 Nf8 Rg2 Ke8 e7 Kd7 e6+ Kc6 Qf7 Bb8 Ne5+ Kd6 e8B Bd3 e7 Bc5 Qg8 Rf5 Bf7 Nf6 e8B Rg5 Ree2 Rg4 Bd7 Rh4 Bg4 Rc1 Bf3 Rc3 Qc8 Rh1 Qh3 Bb6 Re3 Kc5 Bd1 Kd4 Re1 Bc5 Rgg1 Rd8 Bfa2 Rd5 Qge6 Rc2 Ne2+ Ke4 Rg5 Rc3 Bg3 Ke3 Bf4+ Kf2 Neg3 Ba6 Re3 Kg1 Rd3 Rd8 Rd7 Bd3 Re7 Rd5 Ne2+
r6k/2K1p2N/1P1N4/q1Q1Q3/qN1BQqbr/4Q1Qb/1b1R3N/1BRr3Q b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Kd7 f7 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 g5 Nc6 h3 Nf6 h4 Ne5 Ke2 Nf3 gxf6 g5 Kf2 g4 Ke2 Ng5 hxg5 g3 Ke1 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 a5 Kf3 c5 Ke4 h5 d4 a4 b4 c4 g6 c3 g7 a3 g8N h4 b6 h3 d6 h2 Kd5 c2 b5 g2 b7 a2 b8Q Rh4 b6 Bh6 f8Q Qc7 f7 Rg4 f6 Ra3 Nc3 Ra5+ Nb5 Ra7 Qg7 Ra8 f8Q Ra3 f7 Bg5 Qe5 Qd8 Be3 c1Q Bd3 Rg3 Qh6 Bf6 f8Q Qb1 Nf3 Qb2 Bb1 Bg7 Qff5+ Ke8 Kc6 g1Q d5 Qgg2 Nf6+ Kf7 d7 Rd3 d6 Qbe2 Qfe4 Rg4 Bd4 Qf8 d8Q Rh4 d7 Qd2 Qhe3 Qg4 Kc7 Qa5 Qdc1 Qf4 Rd1 h1B Qc5 Bg2 Nh2 Qe8 Rd2 Bh3 Nd6+ Kf8 Qba8 Bh8 Qh1 Kg7 Qae4 Bg4 Re2 Rd1 Rd2 Qa4 Qg3 Qh5 Qge3 Qhg5 Qe8 Bh3 d8N Bcg4 Nc6 Qgf5 Nb4 Qh5 Bc2 Qhf5 Rc1 a1R Bb1 Ra3 Nfd5+ Kh7 Qa8 Bf6 Qa6 Kh8 Qad3 Bg7 Nf6 Q5g5 Qe6 Qd5 Qb3 Qda8 Q6e5 Q8a5 Qbd3 Bf8 Qg3 Ra2 Be3 Qa3 Nh5+ Bg7 Q5f5 Bb2 Nf6 Qb5 Qfe5 Qb3 Bg1 Ra8 Bd4 Q3a4 Qde3 Qba5 Nh7+
B1b1bB1b/4n3/qp2B2R/Bb3NN1/kNb2R2/P4BKR/1N3n1Q/3n2R1 b - - 0 1 legal: proof: h4 a5 d4 f5 b4 c5 dxc5 e5 bxa5 g5 f3 h5 f4 Ra6 g3 Rg6 fxe5 f4 g4 Rh7 Nc3 Rf7 Nb1 Rf5 gxf5 g4 Qd2 Nh6 Qd1 Rg5 hxg5 Ng8 Kf2 d5 e4 Kd7 c4 Kc6 g6 f3 a6 d4 f6 h4 g7 h3 e6 d3 e7 h2 e8N d2 f7 b6 a7 Qd6 a8B+ Bb7 e5 Qe6 a3 Qd6 e6 Be7 f8B Qc7 Nf6 Qd7 Ne4 Bg5 e7 Qe8 Qe2 d1B Bd2 Bf6 Kg3 f2 Nh3 Nd7 Bg2 f1B Nf4 Qg6 e8R Qf5 Bf3 Qg6 Ba5 Qg5 Nbc3 Ne7 g8B Bh8 Nd3 Bc2 Nd5 Ba4 Be6 Bb5 Qa2 Be2 Rag1 Nf6 Rb8 Qc1 Ng5 Qf1 N5b4+ Kc7 c6 Nfd5 c5 Nc3 Rg2 Nd1 Rgg1 Bc4 Rd8 Bc8 Rd4 Bb5 Rf4 Bc4 Kh4 g3 Kg4 g2 Kg3 Kb8 c7+ Ka7 c6 Bb5 Nd5 Ka6 Qc2 Bc4 N5b4+ Kb5 Qb2 Ka4 Qa2 Bd7 c8R Be8 c7 Bcb5 Rd8 Bc4 c8N Bcb5 Ne1 Bec4 Nd6 Qd3 Nf5 Qe2 Rf1 g1N Ned3 Nh3 Rd6 Nhf2 Rhg1 h1B Rh4 Qe4 Rh3 Qb7 Qe2 Qa6 Rc6 Ng4 Qh2 Ngf2 Be2 Ng4 Rf4 Ngf2 Bf3 Bg2 Bg8 Bf1 Rch6 Bg2 Be6 Bh1 Be2 Bb7 Bf3 Bc8 Nb2+
5BN1/1qr4R/q2n1B1p/NQN4B/N1QK2k1/1q3q2/2RNPnrB/N5q1 b - - 0 1 legal: proof: c4 e5 a4 g5 f4 d5 cxd5 b5 axb5 f5 g3 g4 fxe5 f4 h3 f3 Ra3 Bh6 Ra1 Bf4 gxf4 g3 Qc2 Nc6 Qd1 Bg4 hxg4 Nb8 b4 Kf7 d4 Kg6 Kd2 a5 Ke3 c5 d6 c4 g5 Kf5 g6 c3 d5 a4 g7 c2 e6 g2 e7 f2 e8Q a3 d7 a2 d6 Nc6 b6 Ra7 b5 Ne5 b7 Qe7 d8N Qg5 b8N Ra5 d7 Nf6 g8N Ne4 b6 Nf7 b7 Qf6 Na6 Neg5 b8N Kg4 f5 Kg3 Nf3 g1Q Nbd2 Qb6+ Nd4 Qd6 f6 Qh2 Nb7 Qg1 d8B Qa3+ N4b3 Ne4 Bh3 Qf1 Nbc5 Ned6 Bg4 Qg2 Kd4 f1Q Qb5 Qff3 Na4 Ne4 N6c5 Ra7 Nc6 Nf2 Nca5 Nd6 f7 Rc7 f8B h6 Bh5 Qb7 Bf6 Qgf3 Bb2 c1Q Qc2 Kf4 Qcc4 Qg1 Be5+ Kg5 Bh2 Qb4 Rc1 a1Q Rc2 Qaa3 Na1 Qbb3 Bc3 Rhh7 Bb2 Rhg7 Bc3 Qgg3 Rb1 Qg1 Rbb2 Kf5 Ra2 Rg2 Bb2 Qab4 Ra3 Qa2 Re3 Qbb3 Re7 Kg5 Rh7 Kh4 Bg6 Kg4 Bc3 Qaa3 Bh5+ Kh4 Nb6 Qbb2 Ke5+ Kg5 Nc6 Qaa6 Nba4 Qb3 Bd4 Nfe4 Kd5 Kf5 Bf6 Nf2+ Kd4 Qe1 Bf7 Kg4 Na5 Qg1 Bh5+
1b2QNR1/q1b2K2/5Q2/8/4BrPp/1RB2QQB/krq3Bq/qB3BNb b - - 0 1 illegal: No possible last move
1Bkq2b1/3r3p/4r2N/N2NNNQ1/3Q1QNP/2Qr3r/2r5/1BrRRK1b b - - 0 1 legal: proof: f4 d5 g4 b5 a4 f5 axb5 e5 d4 Bc5 e4 Qd7 c4 Bd6 exd5 e4 c5 Nc6 cxd6 Ne5 fxe5 f4 Qd2 Ne7 Qd1 Nf5 gxf5 Qd8 h4 Kd7 b4 a5 e6+ Ke8 e7 Kd7 e8N g5 b6 c5 f6 e3 b7 a4 b8Q g4 f7 f3 f8Q a3 b5 e2 b6 g3 b7 c4 Qf4 a2 Nc3 g2 Nh3 g1R Nf2 Rf8 Ng7 Qb6 Ng4 Qa6 Nf5 Rf7 Qc7+ Ke8 b8N Rd7 Nc6 Rg2 Na5 Rd8 d7+ Kf7 d6 Ke6 Bb2 Qb6 Nd5 c3 Rb1 c2 Qc3 a1R Qdc1 Rg8 d8Q Bb7 d7 Rg7 Qd1 c1R Qdg5 Re7 d8N+ Kd7 Ndc6 Kc8 Nce5+ Bc6 Ba3 Rd7 Bd6 Ra3 Bb8 Qd8 Rg1 Rg3 Kf2 e1R Bd3 Re4 Re1 Rh3 Kf1 f2 Qdd2 Rc2 Rbd1 Raa7 Qde3 Rac7 Qed2 Rc1 Bb1 Rb3 Nde3 Rc2 d5 Bb7 Qcd4 Rd3 d6 Rc1 Q2b4 R7c2 Nd5 Ba8 Qbc3+ Bc6 Kg2 f1B+ Kg1 Be2 Kf2 Bf3+ Kf1 Bh1 Ndf6 Rb7 Nf7 Qc7 N7h6 Be8 Nd5 Re6 Nc4 Ra7 Nce5 Bf7 d7+ Kb7 d8N+ Kc8 Re4 Bg8 Ndc6 Qd8 Ree1 Rd7 Na5+
N1rQ4/B2b1B1P/1Rn2Np1/k2B1R1n/1nBN3N/B7/2qQ2pK/q1r4B b - - 0 1 illegal: Other
6Qr/qNnK2BR/2B4R/kB1N3n/rRP1p2r/1r3N1N/n1B2p2/2RB4 b - - 0 1 legal: proof: h4 c5 f4 d5 a4 g5 hxg5 b5 axb5 e5 e3 c4 f5 Be6 fxe6 c3 dxc3 Bc5 c4 Bd4 c5 Bc3+ Kf2 d4 Ke2 d3+ Kf2 Bd4 exd4 Nd7 Ke1 Nb8 Kd2 f5 Kc3 a5 Kc4 h5 g4 f4 b4 f3 c6 e4 Kc5 f2 b6 h4 g6 a4 e7 d2 c7 Kd7 c8B+ Ke8 g7 a3 b5 h3 g5 h2 g6 a2 d5 Ra4 d6 Rh7 b7 Rb4 b6 Nd7+ Kc6 Rb3 b8R Nf8 b7 Rh6 Bg4 Nf6 g8N Rb4 g7 Rb5 d7+ Kf7 Nh3 Rhh5 Bb2 Ne8 Nf6 Rh8 g8B+ Kg7 Bb3 Kg6 Nd5 Kf7 Bg7 Nc7 c3 Nh7 Bc2 Qc8 d8N+ Ke8 Bc4 Rb4 Qg1 d1N Bb5 Rb3 c4 Nf6 Nd2 Nc3 Rc1 a1R Bgd1 Nh5 Nf3 Ra4 Ra8 Qf5 b8R Na2 Ra7 Qc8 Rb6 Qa8+ Nb7 Qb8 Raa6 Qa7 Qg5 Kf7 e8B+ Ke6 Rg1 h1R Rg4 Rg1 Rh4 Rg4 Qg6+ Nf6 Rh7 Rh4 Ne1 Ke5 Qf7 Kd4 Qg8 Rd3 Kd6 Re3 Bec6 Rb3 Ne7 Kc3 Nf3 Kb4 Nd5+ Ka3 Ke7 Nh5 Kd7 Qb8 Ra8 Qa7 Re8 Rf4 Re6 Rh4 Ne3 Kb4 Rf6 Ra6 Rfh6 Ra4 Nd5+ Ka3 Ba6 Rab4 Rb5 Ka4 Nd8 Ng3 Rb8+ Ka5 Rb6 Ra4 Rb4 Nh5 Bab5 Qc5 Ba8 Qe3 Bac6 Qa7 Nb7+
2b1N2B/1qNB1b1p/1N1b3R/1P2QN2/6qR/1BbR2np/n1RR4/1K3kB1 b - - 0 1 illegal: Other
QK1N1rR1/4N2N/1n1rBq2/1p6/RQ1RpPRn/B1RR1r2/k3p3/4b2N b - - 0 1 illegal: Other
2Q3QQ/bQ2R1bp/bN1Q4/7P/K2Q1pBk/bB4pB/bB6/nR3nN1 b - - 0 1 legal: proof: d4 g5 f4 c5 a4 f5 e3 a5 g3 b5 axb5 e5 Qg4 d5 Qd1 Nh6 dxc5 d4 e4 Qd5 exd5 e4 Bg2 Be7 Bf1 Rf8 g4 Ra6 Bc4 Re6 Bf1 Re5 fxe5 f4 Nh3 Rf5 gxf5 Nc6 Ng1 Nb8 Kd2 Kf7 c4 a4 Kc2 e3 b4 e2 h4 e1B d6 a3 Kb3 g4 h5 g3 f6 d3 b6 a2 b7 d2 b5 Bd8 b6 Be6 c6 Nf5 d7 Nd4+ Ka4 Nb5 c7 Be7 d8Q Nc6 b8Q Bf5 c8Q Bd3 b7 Ncd4 c5 Nc6 Qdd6 Bf8 e6+ Kg8 e7 Kf7 e8B+ Kg8 f7+ Kg7 Nc3 Na5 c6 Nb3 c7 N5d4 Nd5 Ba6 Nb6 Nf3 Bh3 Bf2 Rb1 a1B Bb2+ Bd4 Bed7 Nh2 Bde6 Kh6 Bhg4 Bfg7 f8Q Kg5 Qh8 Nf1 Rh2 Be3 Re2 Kh4 Bc4 Bc5 Re7 Ba3 Qa7 Bd4 b8Q Bdc5 Qf3 d1B Qfb7 Be2 Bf7 Bec4 Qcg8 Bd5 c8B Be3 Bcf5 Bd4 Qb8c8 Bf2 Bc1 Bg7 Bb2 Na1 Bh3 Bfc5 Bfg4 Ba2 Bb3 Be3 Na8 Bf2 Qad4 Be3 Qd1 Bb6 Q1d4 Ba7 Nb6
2q2r2/N1N1QNpp/k1pq1Pn1/6rQ/b3NR2/3N1Q2/RK1Bp1B1/N4Q2 b - - 0 1 illegal: No proof kernel
N2N1n1r/8/p1Rn1pBR/bbKnp3/1Q1N3R/4BP1k/2pB4/R2B1R1N b - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 d6 Bg4 axb3 Na6 b4 Bc8 b5 Nb8 d4 Kd7 e5 Ke6 d5+ Kf5 d7 Kg6 Be3 a6 Bf4 Ra7 Bc1 Rb7 Rh4 Rb6 Rh1 Rd6 exd6 Bh6 Ra2 Bg7 Ra1 Bf8 Ke2 Kf5 Kd3 e5 Kc4 c5 b4 h5 g4+ Ke4 g6 f6 g7 h4 g5 Kf5 g6 h3 f3 h2 b6 Be7 b5 Qf8 d8N Qe8 b7 Nh6 g8R Bd7 b6 Nf7 g7 Rh4+ Qd4 Ng5 Ne6 Qf7 Bd3+ Ne4 Nc3 Bc8 d7 Rh7 d8R Rh4 d6 Rg4 d7 Bd6 Nh3 Bc7 Na4 Bd6 Nf2 Rg5 Bd2 Rg6 Rhf1 h1N Rh8 Rh6 g8B Rh4 Rh6 Ng3 Nh1 Qh5 Be2 Bc7 Bf7 Rh2 Bd1 Ne2 Qc3 Qh4 Qb4 Nf4 Nd4+ Kg5 Bg6 Rh3 Re8 Rh2 d8N Nd7 b8B Nf8 b7 Ba5 Nb6 Bd7 Re6 Ba4 Rc6 Nd6+ Kc3 c4 Ba7 Rh3 b8R Bb5 Na8 Rh2 Nf5 Rh3 Bae3 Rh2 Nd4 Rh3 Kc2 c3 Kb3 c2 Rbc8 Qh5 Rc4 Kh4 R8c6 Nd5 N4e6+ Nf4 Re4 Rh2 Ka3 Kh3 Nd4 Nd5 Kb3 Qh4 Ka3 Nf7 Kb3 Ba4+ Kc4 Nd6+ Kc5 Bb5 Be8 Rg2 Bh5 Rg8 Bg6 Rh8 Rexh4+
q2n3K/bN2RP2/2Bq1Q1R/1Qnn2rN/Q1q1RQb1/r3R3/r3RR2/B4k2 b - - 0 1 illegal: No possible last move, all moves rejected
BRnrN3/2R2K2/2r1Nn2/n2n1nB1/r1kq2B1/1bNP4/2R1Q1RB/N2Bb3 b - - 0 1 illegal: No possible last move
1KQ1N1N1/4b2N/RnR1Br1B/PbR3b1/1n6/n2B2BR/n1r1n1k1/2q1R1N1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 b5 d4 c5 a4 g6 h4 b4 a6 c4 d6 c3 d5 e6 a7 b3 d7 c2 h6 b2 h7 Ba6 h5 Bg7 d6 Be2 h6 Nc6 Na3 b1N Nc4 Qc8 d8R Nb8 d7 Qc7+ Nd6 Qc8 Ne8+ Ke7 f6+ Kf7 Ke5 g5 Kd6 Kg6 f4 Kf5 f7 Ke4 f8B e5 f5 g4 f6 g3 f7 g2 Bf4 c1B Bg3 Bg5 Qc1 B7f6 a5 Ba6 Rh3 Nc3 Qc2+ Ke3 Bd3 e4 Rb1 Qc4 Rc8 Ne7 d8N Nec6 Kc7 Nb4+ Nc6 Nd7 Ra1 Rb8 a8B Be7 Rf1 Rg8 h8R Rg6 h7 Nb6 Bh6 Nca2 f8N Bb5 Rg8 Qc3 h8R Rf6 Nh7 Qb2 Bb7 Qc1 Rg6 Ra8 Ba6 Ra7+ Kb8 Rc7 Nf3 g1N Re1+ Ne2 Ng1 Ba4 Bac4 Bb5 Bh4+ Kf4 Be6 e3 Qc5 Nd4 Qc3 e2 Bg3+ Ke3 Ne5 Rc4 Rc6 Rc5 Nd7 Rc4 Bd6+ Kf2 Bg3+ Kg2 Rh5 Be3 Rhc5 Bg5 Qd2 Rc2 Qc3 Rf4 Ndf6 Rf3 Rd1 e1N Ng8 Ne2 Qc4 Rf6 Qc3 Nf3 Re1 Nfd4 Qc4 Ba4 Qa6 Nb5 Qc8 Na3 Rg7 Bf8 Ra7 Bb5 Ra6 Be7 Nf8 Rf1 Bg7 Nf4 Rh3 Ne2 Bh6 Rf6 Nh7
1BB1R1N1/B3bB1b/7n/P2R4/q2rb1kN/2RN3n/b1RKNQ1b/N3n1r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 c5 f4 e5 g4 h5 g6+ Kf6 g7 b5 a6 h4 g5+ Kf7 d6 e4 g6+ Kf6 d5 c4 d7 c3 d6 c2 a7 b4 a5 b3 Ra3 h3 Be3 c1N Rh2 b2 Qf3 Ne2 Kd2 Nd4 Ba6 Nh6 g8N+ Kg7 Rc3 Qe8 d8R Qb5 d7 Qc6 Ne2 Nc2 Qf2 Ne1 Na3 b1B Nc2 Ba2 Na1 Qa4 Re8 Bb4 d8B Be7 Bc7 Nc6 Bb8 Nd4 Bb7 Bd7 Bc8 Ne6 Rd8 Bc6 Rd5 Ng5 Rg2 h2 f6+ Kf8 g7+ Kf7 Bc5 Kg6 f7 Kh5 f8N h1B f5 Nh3 Ng6 Bb7 Rh2 Kg4 Ngf4 Bc6 Nd3 e3+ Kc1 Be4 f6+ Bd7 f7 Bdf5 f8N Rh7 Ng6 Rh8 Ng3 e2 Kd2 Rh7 Nh4 Rh8 Bc7 Rb8 a8B Rb4 Bb8 Rd4 Bca7 Rh7 Be6 Rh8 Bf7 Bh7 Bc6 Ng2 Bb7 e1B+ Ke2 Bd2 Ba6 Ne1 Bc8+ Qd7 Kd1 Bf4 Ne2 Bc7 Rh1 Bh2 Kd2 Nc2 Rc1 Ne1 Ba6 Qa4 R1c2 Bed6 Ne7 Rc8 Ng8 Be7 Bb7 Rc6 Ba6 Rf6 Bb7 Rf3 Ba6 Rg3 Bb7 Qd7 Bc8 Rg1 Nc1 Bhg6 Ne2 Bgf5 Nf6+ Kg5 Be6 Qa4 Bf7 Be5 g8R+ Bg6 Bf5 Bh2 Re8 Bh7 Bc8+ Bhf5 Rd7 Bh7 Ng8 Kg4 Rd5+
NK1N1n2/1bB5/N1rbbRPN/1kB1q3/1RR1b3/4QB1R/2b2N1B/1rr1n3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 h5 Kf3 a5 Ke4 f5+ Kd5 a4 g4 f4 e4 d6 b4 Kd7 c4 a3 e6+ Kc7 g6 a2 g5 f3 e5 f2 b6+ Kb7 g7 Ka6 e7 h4 e8R h3 c6 h2 g6 Bh3 c7 Qg5 c8R Be7 c5+ Kb7 b5 Qg4 e6 Bd8 e7 Qd7 Be3 Bg2+ Qf3 Ra3 c6+ Ka8 c7 Kb7 Nc3 Ra8 Nd1 Rh3 Bc5 Rh7 Ne2 Nh6 g8N Nf7 Nd4 Ne5 Ne6 Ra6 Be2 f1B Nh6 Nd3 Nf2 Ne1 Rf8 Qe8 Rf6 Nd7 Qe4 Rg7 Bf3 Nf8 Qe3 Bh3 Qd2 Bd3 Qe3 Qf7 e8N Qe7 Ra8 Bhf5 c8N Bc7 Rc1 a1R Rc4 Bb8 N8c7 Rc1 Rd4 Raa1 Rc4 Rab1 Raa4 Qe8 Na6 Rc7 Ne4 Rc6 Nf2 Bc7 Nd8+ Ka8 Rg1 h1B Rg3 Bd7 Rh3 Bg4 Nb4+ Kb8 b7 Be4+ Kd4 d5 Nb6 Bd6 Na6+ Ka7 Na8+ Rb6 Bb4 Be6 Bc5 Be7 Ke5 d4 Ndf7 d3 b8B+ Kb7 Bc7 Rc6 b6 d2 Nd8+ Kc8 b7+ Kd7 b8B d1B Kd4 Bdc2 Bh2 Bd6 Bc7 Ra1 Kc3 Bg2 Kb4 Rab1+ Ka5 Rcb6 Bd1 Bb7 Bg4 Bge4 Bf3 Rc6 Bb4 Rc5+ Kb6 Rc6+ Ka7 Qe7 Bc5 Qg7 Rf4 Qe5 Kb8 Rcb6 Ndf7 Kc6 Nd8+ Kb5 Rf6 Rc6 Rab4+
1BNn1rrb/Nb1BR2q/P2KB3/2RN1Qr1/1R2N3/nr2NR2/5rbk/2B5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 d4+ Ke4 a4 e5+ d6 b5 h4 g5 f4 g4 d5 g3 h6 b4 h5 b3 h7 b2 a6 c6 h6 g2 f6 Bd7 a7 Bf5 a5 Qd7 f7 Qc8 a6 Nf6 Bb5 Bh3 f5 Qb7 Qh5 Ng4 f6 Qd7 Nf3 g1R Ne1 Rg8 h8R Be7 f8N Qe8 f7 Rg2 h7 Nh2 Ra5 R2g6 Ne6 Ng4 f8R Qf7 Ng2 Kf3 Nc7 Kg3 Nc3 b1B Re1 e4 Qf5 e3 Ne4+ Kh2 Ba4 e2 Ne3 Bf6 d7 Ne5 d8N Bf1 d6 Nc4 d7 Rg5 Nb7 Na3 d8N Bg2 Kd6 c5 Nc6 c4 Rc5 c3 Ncd5 c2 Bb3 Qg6 Rf7 Qg7 Rf1 e1R Re7 Bd4 Rf3 Re2 Ba2 Rf8 Rg8 Rd2 h8B Qh7 Bf6 Rf2 Be5+ Rg3 Bf4 Bh8 Rg4 Rg8 Nb6 Rg5 Be6 Ba2 Be5 Rg8 Rgf4 R3g5 Nbd5 Rf8 Nba5 Rfg8 Nac4 Rf8 Ncb6 Bc4 Nd8 Nc6 Nc8 Rb8 a8B Rb3 Kd7 Bcf1 Bb8 Bh1 Kd6 Bfg2 Na7 Rfg8 Nf7 Nd8 Bc6 Rf8 Bcd7 Rfg8 Bd2 c1R Rg4 Rc2 Bc1 Rcd2 Ng3 Rf8 Rb4 Rd4 Ne4 Rgg8 Nc3 Rdg4 Ne4 R4g5 Kc7 Bf1 Nfd6 Bhg2 Ndc8 Bb5 Qf6 Bc6 Kd6 Bb7 Qf5
2N3BQ/P1b4b/Rn1Bb1k1/rN1QR3/1RB1B2b/bRq1nK1R/2r2R2/3r4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 g4 b5 d4 c5 f4 e5 a4 h5 f6 c4 g6+ Ke8 g7 Kf7 g5 e4 a6 h4 g6+ Ke8 a5 c3 f7+ Ke7 d6+ Kf6 f5 b4 d7 h3 d5 b3 d6 e3 a7 b2 a6 h2 Nh3 c2 Nf2 Qe8 d8Q+ Ne7 g8R Qc6 d7 Qb6 g7 Qc7 Nc3 b1B Ba3 c1B Kf3 e2 Bd6 e1B Nb5 Ba3 Qd5 Qc2 Bc4 Kg5 f6+ Nf5 Ne4+ Kh5 Qe8 Bc3 d8R Be7 f8R+ Kh6 f7 Bab2 Ra3 Kh7 Rb3 Bh4 Rd7 Kg6 Rb7 Rh7 Rh8 Bd7 g8B Be6 Rf1 h1R Rf2 Nd7 Rb6 Rd8 a8B Rd1 a7 Rc8 Ra6 Ne3 Qd8 Bb4 Re8 Qc3 f8R B4a3 Rf5 Rc5 Re7 Nb6 Rb7 Rhc7 Rh7 Bg3 Rh3 Rc8 Qh4 R8c6 Qh8 Bh4 Bc7 Ba1 Ned6 Bd3 Nc8 B1b2 Nbd6 Ra5 Nb5 Bb1 Bh2 Bd6 Rb8 Bc7 Bd6 Bc2 Qd2 Rc5 Be4 Ba3 Qdd4 Rd5 Qc5 R5d2 Qd5 Bd3 Rb7 Rc2 Rf8+ Bf5 Nd4 Nd7 R7b4 Kg5 Nb5 Nb6 Rf6 Qe5 Rf8 Be6 Bg6 Bdf5 Bh5 Bh7 Bg6 Kh6 Be4 Qc3 Rf5 Kg6 Re5+
2B1qnKn/2R3BR/2b3R1/B1rknN2/2nPN2b/5QN1/1BrB2r1/NR5b b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 Kg5 e5 f4 a3 g7 e4 Kg6 h4 Kf7 e3 g5 a2 f5 h3 b7 h2 b6 e2 g6 e1N Ne2 Rh7 Bb2 c1N Ng3 Ra4 Qf3 Ra5 Bh3 Rc5 Na3 Rc3 Nc2 Ned3 Rb1 Rc4 Na1 Nd7 b8R N3c5 b7 Kc7 d6+ Kb6 Ra8 Ne4 b8R+ Kc6 Ra7 Rc2 Rb6+ Kd5 Rc7 Nc5 d7 Bb7 Re6 Qc8 d8B Rh6 Rb6 Ne7 g8N Ba8 g7 Rg6 Nh6 N1d3 g8N Bc6 Ra6 Bg7 Bg4 Bh8 Kf8 Rg7 f7 Ne5 f6 Qb8 Bc8 Ncd7+ Ke8 Qb5 f8B N7g6 f7 Qb8 Bb4 Ndf8+ Bd7 Qa8 Bd2 Qc8 Nhf5 Rc5 Rhe1 h1B Re2 Rc2 Rh2 Rc5 Rh7 Qb8 Nb3 a1R Rb6 Ra3 Na1 Rac3 Ra6 Rc2 Nf6+ Kc4 Rb6 Rg8 Ra6 Bg7 Rb6 Nh8 Ke7 Qa8 Bc8 Nd6 Nfe4 Kd5 Ra6 Ndc4 Rb6 Nfd7 f8B Bf6+ Ke8 Rg4 Bg7 Bh4 Ra6 Nb8+ Kf8 Nbd7+ Kg8 Nf8 Rb7 Rg6 B8a5 Qb8 Rc7 Rg5 Ne2 Rg2 N2g3 Qa8 Bb7 Qe8 Bc8 Bd7 Rf6 Bc6 Rg6
kn1B1Q1B/b1RB3r/B2br1N1/4nPKN/1rNRN1b1/5q2/1RR1B3/2r2n2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 b4 Kb7 d4 a5 g4 h5 f6 c4 d6 a4 b6 c3 g6 e5+ Kg5 c2 f4 a3 d7 h4 f5 h3 d5 h2 b5 e4 g7 a2 d6 e3 Na3 e2 Nc4 e1N Nf3 Ra6 Bb2 c1B+ Nfd2 Nd3 Be2 Nf4 Ne4 Be3 Rc1 a1R Rc2 Qe8 d8R R6a4 d7 Bb4 f7 R1a2 f8N Ka8 b7+ Ka7 b6+ Ka6 Ng6 Qe5 Qd6 Qa5 Qf8 Bd6 Rhc1 Nf6 g8B h1R Be6 R8h7 Bd4 N6d5 Bh8 Nc6 b8R Qc3 b7 Ka7 Rd1 Qb3 Rd4 Rb4 Re8 Rd1 d8B Rc1 Re7 Ra6 Rc7 Bf2 Bd7 Ne3 Kf6 Nf1 g5 Nd2 Nge5 Bg1 g6 Nf1 g7 Ng6 g8B Qf3 Kg5 Bf2 Na5 Bg1 Bgc4 Rab6 Ba6 Bf2 Nd3 Nge5 Nc4 Bg1 Nf4 Be3 Be8 Be6 Bd7 Bd5 Ned2 Bf2 Ng6 Bg1 Ne4 Bf7 Nh4 Bh5 Ng6 Bf2 Rb2 Bg1 Rbc8 Bg4 b8N+ Ka8 Be8 R4b5 Nd7+ Nb8 Ndf6 Rb4 Nh5 Bf2 Bd7 Rc6 Rd5 Ba7 Rd3 Bdc5 Rd4 Re6 Na5 Bd6 Rcc2 Re1 R8c7 Rc1 Nc4
2Qb4/nBNbk3/r3B1R1/3Pr1N1/1B5Q/1QBnn2K/5rnb/1Qq1RQ1Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 c5 Kf2 h5 Kg3 e5 b4 a5 d4 h4+ Kh3 a4 g4 c4 b6 c3 b7 e4 f6 e3 g6 c2 f7+ Kd7 g7 a3 g5 e2 b5 e1N g6 a2 d6 Nc6 b8Q Qg5 b6 Ra7 d5 Ng2 f5 Rb7 f6 Qf4 Nc3 Nge7 g8B Na5 g7 Rc7 b7 Rc4 Nf3 Re4 Ng5 Nec6 Ba6 Rd4 Nb5 Ne3 Bd2 c1B Nc7 Re4 Re1 Ng2 Bc3 Be7 f8B Re5 f7 Nc4 Qb3 Kd8+ d7 Nce3 Qd1 Bf6 Bfb4 Na7 Ba5 Ke7 Rb1 a1R Rb6 Rh6 Qb3 Rg6 Qa8 Rb1 b8Q Rb2 Bb7 Rf2 Ra6 Ba3 Qb1 Bd6 Rb6 Nc6 Qa6 Na7 Qf1 Qc4 Qh1 Rh6 Bh7 Qc5 g8Q Qa3 Bf5 Qc1 Be6 Rg6 Kh2 h3 Kg3 h2 Kh3 Ng4 Qh8 N4e3 Qf1 h1N Qh4 Ng3 Qh1 Ne4 Ra6 Nc5 Rc6 Kf8 Qb3 Nd3 d8Q+ Kg7 Qb1 Bd7 Qdc8 Bd8 Qb3 Rh6 f8Q+ Kg6 Qf3 Kg7 Qe2 Kf6 Qef1 Ke7 Bf5 Bb4 Rg6 Bd6 Bg4 Re4 Be6 Bh2 Bc6 Re5 Q8b5 Rh7 Bb7 Rhf7 Qb1 R7f4 Q5b3 Rf6 Bf5 Rd6 Be6 Ra6 Bab4+
1K1Brr1B/2r4k/NQ3nP1/qb1b1R1B/2Q2nQn/b2N4/r2Q2Q1/2BQ1R2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 Kg7 Kf4 h5 Ke5 c5 f4 a5 d4 e6 g4 h4 b4 h3 f6+ Kh7 d6 a4 d5 a3 b6 c4 g6+ Kh6 f7 a2 b7 h2 d7 c3 f5+ Qg5 d8B c2 g7 Ra7 d6 Ra8 d7 Nf6 g8Q Ne8 b5 Bc5 f8Q+ Ng7 b6 Ra7 Nf3 Bf2 Kd6 e5 Kc7 e4 f6 e3 f7 e2 Qc5 e1N f8B Kg6 Nbd2 Nd3 Qcc4 Qe7 Be2 Bg1 Ne4 Qf6 Nc5 Ra8 Ne1 Qg5 Na6 Nf4 Nd3 Bc5 Rf1 h1B Bfe7 Qf5 Bf6 Bd5 g5 Bf8 Qe6 Kh7 Bh5 Ba3 Qee4 Re8 Qg2 Rf8 Rb1 a1R Rb5 Ra2 Qdg4 Nc6 b8Q Ne5 b7 Nf3 Qa7 Rb8 Qe3 Nh4 Qed2 Ra8 b8Q Ne8+ Kb6 Bcb7 Bh8 Nf6 Kc7 Bbc6 Qb6 Rb8 Rc5 Bb5 Qdd1 Qe6 Qdd2 Qe1 Qdd1 Qa5 Qdd2 Be6 Rf5 Rc8+ Kb7 Rc7+ Kb8 Bd5 Bb2 c1R Qdd1 Rca1 Bc1 Rb1 Ndc5 Rbb2 Nb4 Rf7 Be7 Be6 d8Q Rd2 Nca6 Re2 Q8d2 Bd5 Nd3 Rf8+ Bd8 Ree8 g6+
QBrRn3/2R5/2N1r3/K3bR2/2b1qq2/QPBRB2B/3b1N2/1Rb1kRnb b - - 0 1 illegal: No possible last move
2r2qbq/B1R1Bb1r/1K1N1nN1/2NN1BPk/N2b1Q2/3B3b/1n1b1RN1/6Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 Ke3 c5 d4 a5 g4 f5 b4 Kf7 g6+ Kg7 b6 Kh6 d6 a4 g7 a3 g5+ Kg6 d5 c4 Kd4 a2 Kc5 h4 e4 f4 b5 c3 b7 h3 e6 h2 e7 f3 e8N f2 e5 c2 b6 Bh3 e6 Rh6 e7 Bg2 d7 Ra7 d6 Qc8+ Nc7 Nc6 b8B Bd5 e8N Be4 d8N Ne5 b7 Rh7 Nf3 Ra5+ Kb6 Nc6 d7 Na7 Nf7 Bb4 d8N Bd2 Nde6 Rd5 Ba3 c1Q Ne1 Nc6 Ned6 Qf8 Nc3 Rd4 Nc5 Nb4 N7d5 Qb2 Rc1 a1B Ba7 Rc4 b8Q Nf6 Bd3 f1B g8B Bh3 Rf1 h1B N3a4 Rc3 Rf3 Kh5 Ne5 Bg6 Ng2 Bf7 Ng6 Rc2 Bf5 Nd3+ Bb4 Qd4 Qg1 Nb2 Rf2 Qh4 Nd7 Rc8 Rc7 Qd4+ Ndc5 Qh4 Ne1 Be4 Ng2 Bb1 Ba3 Ba2 Bd3 Nd1 Bf5 Bd4 Bb4 Nb2 Bd3 Be8 Be6 Bf7 Ba3 Qf4 Bef5 Qe5 Qb7 Qee8 Qa6 Qh8 Qc4 Qef8 Qcc1 B2c3 Qf4 Bd2 Nb4 Bae6 Nd5 Bg8 Bb4 Bef7 Nc4 B4c3 Nd7 Be8 Be7 Bd4+ Ndc5 Bef7 Nd6
1Q3N2/BB2bbrQ/Q1bnq1n1/5P1Q/2q2R2/bQb1NR2/1N3K1Q/1k1r2N1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 Kd6 d4 a5 g4 c5 f6 e5 f5 h5 b6 c4 f7 c3 b5 e4 b7 h4 g6 a4 g5 a3 b6 c2 g7 a2 g6 e3 Bg2 h3 Nd2 h2 Nf1 e2 Ne3 Nh6 g8Q Ra5 g7 Na6 b8Q+ Nc7 b7 Qe7 Kf2 Qe4 Qh7 Be6 g8Q Be7 f8N Nf7 Rb1 a1Q Rb3 Qa2 Qc8 Qd3 b8Q Qc4 Qg4 Ra7 Qgh5 Ne5 Qa6+ Qc6 Bd2 c1B Rd3 Bf7 Qdb3 Qa4 Ba5 Bb2 Bb6 Qac4 Be4 Rb7 Ba7 Ba3 Bg2 Rg8 Bf3 Rg7 Rc3 Bd8 Rd3 Ng6 Bg2 Ke7 d6+ Kf6 d5 Ke5 d7 Qe6 d6 Be7 d8Q Nb5 d7+ Nd6 Qdc7 Rb5 d8N Rd5 Rc3 Rd1 Bb7 Kf4 Nc6 Ke4 Kg2 e1B Na5+ Qcd5 Rd3 Bc3 Kf2 Qc6 Nac4 Qcd5 Nf3 Qc6 Rf1 h1B Nb2 Bg2 Nd5 Qc4 Ng1 Bh1 Rf3 Bg2 Na4 Bh1 Ne3+ Kd3 Rf4 Bc6 Nb2+ Kd2 Rf3 Kc1 Rf4 Kb1 Rf3 Nb5 Qch2 Nd6 Rf4 Rg8 Kg3 Rg7 R1f3 Nb5 Kg2 Nd6 Kf2
1r1B4/1BN1BR1b/n2P4/N2Kb1BB/q1Qb2bR/1nQ1Qr1Q/1k1q4/1b5B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 d4 h5 g4 h4 b4 a4 e6+ Kd6 b6 c4 g6 c3 b5 f6 e7 a3 e8B c2 b7 h3 g5 a2 b6 h2 g7 Ra5 g6 Qd7 Nh3 Be7 Nf4 Nc6 b8Q+ Qc7 b7 Rh5 Na3 Rf5 Qd2 Nd8 Qc3 Ra7 Bg2 Ra8 Ne6 Nh6 g8Q Nc6 g7 Nb4 Bh5 Rf3 Bg5 Nf5 Raf1 c1Q e3 Bd7 Qbc8 a1B b8B Na6 Qge8 Qd1 g8Q Qa4 Ba7 Qc5 Nc7 Rb8 Bb6 Qcc6 Ba5 Bf8 Bb4+ Qc5 Qh8 Bg7 Qh6 Be6 Qb5 Bg8 Qbc4 Bh7 Qh8 Rh3 Rf4 Rf3 Rh4 Bb2 Rf1 h1B Qc8 Ne7+ Qf5 Nc6 Rf2 Na5 Rf1 Bg8 Qh3 Nb3 Rf2 Be6 Rf1 Bg4 Rf2 Kd7 d6 Kc6 d5+ Kb6 d7 Qd6 d8B f5+ Kd3 f4 Ke4 Bd4 Rf1 Qdc6 Bbe7 Qd6 Qe6 Ba1 Qe5 Qdb4 d6 Bb2 Kd5 Ka5 e4 Ba1 Qe3 Qd2 Qf6 Bac3 e5 Ba1 Qc6 Kb4 Nc4 Bac3 Na5 Ka3 e6 Kb2 Qc4 Be5+ Ke4 Bcd4 Kd5 Rg3 Bg6 f3 Bh5 f2 Be4 Bhf3 Qg7 Bd1 Bh1 Bc2 Qf6 Bb1 Qff3 Ka2 Qec3 Ka3 Qfe3 Ka2 Bef6 Bh7 e7 Rf3 e8B Bb1 Bc6 Bh7 Re1 f1B Bfe7 Bfd3 Rf1 Bb1 Bb7 Ka3 Q3b4+ Kb2 Rf2 Rg3 Rf7 Rf3 Qbc3+
N3BB2/QRR4b/3KN2b/rB6/n3NBBr/1bk1r1Q1/1q2bB1P/3nq1N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 e4 d5 b4 a5 c4 d4 b6 a4 b7 g6 b5 d3 c6 a3 c7 d2 c5 a2 h6 Qd6 c6 Qd4 h7 Qd3 b6 Bd7 c8N Ne7 c7 Qa6 Qa4 d1B Be3 Bg7 Bf2 Bc6 Nc3 Nd7 b8Q Be2 b7 Qb5 Rb1 a1R Qaa7 Nc5 Nb6 Ra5 Nca4 Qb2 c8B+ Bd7 Qc7 Bc4 b8B Bb3 Bb5 g5+ Kf3 g4+ Kf4 Re8 h8B g3 Rc1 Bf8 Bg7 g2 Rc4 Nc6 Bh6 Nb4 Rc1 Na2 Qd6+ Kf7 e6+ Kf6 e7+ Bde6 Qd3 Nc3 Qg3 Bg8 Bcd7 Nd1 e5+ Kf7 e6+ Kf6 Rb1 Bh7 Bc7 Rad8 Na8 Bg7 Rc1 Rh8 Bc8 Rd3 e8B Re3 e7 Bf8 N4b6 Na4 Nd7+ Ke6 Nc5+ Kd5 Bb8 Kd4 Bd6 Bg7 Rb1 Bf6 Bf8 Bg7 Bc7 Kc3 Bcd7 Rd3 Be6 Bh6+ Ke5 f4 Bg4 Re3+ Kd6 f3 Bed7 Be4 e8N Bh7 Ng7 Be6 Be8 Bb3 Nh3 g1Q Nge6 Qf1 Ng1 Qe1 Kd7 Rg8 Bf4 Rg5 Kd6 Rh5 Nd7 Rh4 Rc1+ Kd2 Rc4 Kd3 Rc7+ Kd2 Rb7 Kc3 Ndc5 Re5 B2e3 f2 Rc7 f1B Bf2+ Re3 Rb7 Qee2 Nd7 Kd2 Nh3 Ndc3 Rg1 Qd1 Rh1 Bfd3 Re1 Qdb1 Ng1 Be2 Rd1+ Kc2 Rd5 Qe1 Rc5 Kd2 Rcc7 Nd1 Ndc5 Kc3 Ne4+
2nq2nr/Q3b1k1/QN1n1n2/1B2RQQ1/1P2NqQr/3Q1R2/1K3BbB/2B4b b - - 0 1 illegal: No possible last move, all moves rejected
4KNN1/2qn2rQ/2k2NRn/r1B5/P2bB3/1bR3B1/B1qQ1nbb/B1BN4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 g5 Ke4 b5 Ke5 c5 f4 c4 h4 g4 a4 c3 d4 g3 a6 c2 h6 e6 h7 g2 a7 b4 f6 b3 d6 b2 d5 Qb6 h5 Qd8 f7 Bh6 f8N+ Ke8 f5 Ne7 Kf6 e5 Ra3 e4 Nc3 b1B Qd2 e3 Ne4 e2 Rc3 e1N Nh3 g1Q Nhf2 Qh2 Nd1 Qg1 Bc4 Be6 Ba2 Be3 h6 Qb6 d7+ Kd8 Rh3 Nec6 Rg3 Kc7 d8B+ Kb7 d6 Nf3 d7 Nh2 Rg6 Bb3 Bc7 Nd4+ Ke7 Qf2 f6 Rg8 h8Q Ng4 f7 Rg7 h7 Nf5+ Ke8 Nfh6 Nf6 Bd4 Bg3 Qc7 d8N+ Kb6 Qg8 Nd7 h8B Qh2 Qh7 Nf2 Ne6 Qg2 f8B Qe4 Be7 Qec6 Nf8 Qc5 Bb2 c1B Bed6 Qc4 Bba3 Be4 Bdc5+ Ka6 Bb2 Bg2 Ba1 Qd3 Bb2 Qc2 Ba1 Rb8 a8B Rb5 Be4 Ra5 Nc6 Ba3 Bb2 Kb7 Bc1 Bb4 Ba7 Bd6 Bc5 B6e5 Ne7+ Bd5 Bd3 Bb3 Neg8 Kc6 Be4+ Bd5 Rb3 Ba1 Bh2 Rf7 Nh5+ Bd6 Bhd4 Rg7 Nhf6 Bb2 Bg3 Bc3 Bh4 Bh2 Bg3 Ba1 B5a3 Bb2 Bdc5 Bd4 Bab2 Nb6 Ba1 Nd7 Bd3 Bc4 Rc3 Bb3 Be4+
4R3/3Q1R2/r1b2RP1/1q2rNbR/k1NRQ1n1/qQ3K1B/6n1/1rBrqR1Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 b4 c5 f4 h5 d4 e5 g4 a5 f6 a4 d6 c4 f5 c3 g6 e4 d5 h4 f7 e3 g7 c2 b6 a3 b7 a2 g5 h3 f6 h2 b5 Ra5 g6 Rh4 b6 Re4 Na3 Qc7 Bh3+ Re6 Nf3 Rb5 Nh4 Na6 b8R Qb7 Nf5 Be7 f8R Rb1 f7 Nc7 Kf3 e2 Nc4 Nf6 g8Q e1Q Qh7 Qa6 b7 Qb5 Qd3 Re5 Qe4 Ng4 Re8 Ne6 f8R Nf4 Rf6 Ng2 Ref8 Qd2 R8f7 Qe1 Rf1 h1R Qh5 Kd8 d7 Kc7 d8R Bd7 Re8 Bc6 d6+ Kd7 Ra8 Rg1 b8Q Rh1 Ra5 Rg1 Bh6 c1Q Qb6 Qcb2 Bc1 Q2b3+ Qe3 Qa3 Qb3 Rh1 Bb2 Rd1 Bc1 Rg1 Rb1 a1R Qh6 Bd5 Qh4 Kc6 d7+ Kc5 d8Q Bc6 Qd7 Bd8 Rd6 Bg5 Rb2 Rb1 Rdf6 Rd6 Rd2 Rh1 Qe3+ Kb4 Rd4 Rde6 Rh8 Rd6 Raa8 Rde6 Rae8 Ka4 Rhh7 Bb7 Rh5 Ra6 Qg3 Rg1 Qh2 Bc6 Qh1 Qd2 Rf2 Rd1 Rf1 Qe1 Qb3+
N1q1QN2/1bnq4/2N1PKRb/r1N1nR1Q/Q2n2Q1/1B5Q/1b3bQB/2kr4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 Ke4 a5 h4 g5 b4 c4 d4 c3 e6 Kd6 Kf5 a4 e4 a3 b6 a2 h6 c2 e5+ Ke7 b7 f6 h7 g4 d6+ Ke8 b5 g3 d7+ Ke7 h5 g2 b6 Ra6 h6 Ra7 d5 Ra4 Nh3 g1B Nf2 Rh4 Bc4 Bh2 Ne4 Rh3 Nbd2 Rc3 Nc5 Bf4 Rg1 Rb3 Rg6 Rd3 Qg4 Nc6 b8N Be3 b7 Bf2 Bb3 Qc7 d8N Qd7 Rb1 a1N Nc4 Rd1 Bf4 c1B Nb6 Bb2 Bh2 Nc2 Na8 Bg7 Ra1 Bf8 Ra5 N2d4+ Kf4 f5 Kg5 f4 d6+ Ke8 e7 f3 Qg2 Nf6 Nde6 Kf7 Rb5 Rg8 h8Q Nd5 h7 Nc7 Ra5 Na7 Nc6 Bh6+ Kh5 Rg7 b8Q Bb7 Rb5 Qc8 d7 Rg8 d8Q Rg7 Na5 Nac6 Qa7 Rg8 Qd5 Rd8 Qe4 Rd5 Qeg4 Qd7 Qhb8 Qc8 Nf8 Qd7 Rg5 Qc8 e6+ Kf6 e8Q Ne5 Q4h3 Qd7 Rg4 Kf5 h8Q Qc8 Rg3+ Kf4 Nc6 Ke3 Qa4 Kd2 Rg6 Kc1 Ra5 Bfe3 Qhg4 f2 Qf7 Qd7 Qbe8 f1Q Qff3 Qe1 Qfh3 Bf2 Qh7 Qc3 Qh8 Bg7 Kg5 Qc4 Q8h5 Bh6+ Kf6 Qa6 Nb6 Qa8 Rb5 Qac8 Na8 Rd6 Na5 Ra6 Nc6 Ra5 Ne4 Nef3 Rf5 Ne5 Nc5
2QnR1b1/q1n2r2/PQ1Nq2N/2KB3b/1BBRB3/1Rn5/r1R3bb/3kB2B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 Kd6 Kd4 h5 g4 b5 f4 h4 a4 c6 a6 h3 a5 b4 a7 e6 g6 h2 a6 b3 g5 b2 f6 Rh5 f7 Be7 f8B Nf6 g7 Bb7 g8B Rh7 g6 Rh6 g7 Rh5 f5 Bc8 Qb3 Qd7 Nh3 Ne8 f6 Nc7 Na3 b1B f7 Ba2 Ng5 c5+ Kc4 Ke5 d4+ Kf5 d6 Kg4 d5 e5 Bd3 e4 Nb5 e3 Rb1 e2 Be4 e1Q Bd2 Nc6 Rc1 Nd8 Rc2 Rb8 a8B Rh7 Bb4 Qe6 d7 Qe3 Rb1 h1B Be1 Bg2 Nd6 Rh2 Rbb2 Rb7 Rb1 Bf6 Be7 Ra7 f8R Be5 Re8 Rb7 Ngf7 Kf4 Beh7 Kf3 Nh6 Bg3 Bf7 Bf4 g8B Bg3 Rc3 Ke2 Be4 Qg1 Rbc1 Qf2 R1c2+ Kd1 Re3 Ra7 Rf3 Bb7 Re3 Bf3 Rec3 Bh5 Bh1 Rg2 Bg6 Bh2 Be4 Bb1 Qb5 Ba2+ Rb3 Qg1 Qb6 Rf2 Kd3 c4+ Kd4 c3 Kc5 Qg7 Nb5 Qgf7 d6 Qh7 Bd5 Qhf7 Bc4 Bg2 Bad5 Rb7 Bh7 Qg7 Bhe4 Qh7 Rcb2 c2 Bf8 c1N Rc2 Ne2 Be7 Nc6 d8Q Nc3 Qc8 Nd8 d7 Qg7 Nd6 Rf7 Qa7 Rb4 Bf8 Ra4 Be7 Bb1 Qb6 Ra2 Rf2 Bd3 Rc2 Bde2 Bf8 Beg4 Be7 Bf5 Bf8 Bh7 Be7 Bg8 Bf8 Nc6 d8R Qh7 Rd7 Nd8 Nb5 Ra4 Ba8+ N7d5 Kd4 Ra2 Bb4 Rf3 Kc5 Qhf7 Rd6 Qa7 Bc6 Rd3 Rd7 Nc7 Rd4 Rd2 Nd6 Rd3 Bd2 Rf3 B6d5 Rf7 Be1+
bn1k1B1B/R3r2P/5B1K/1qn1NB2/1B4b1/qr1B4/Qb1R3Q/q1bNN2N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg3 f5 h4 c5 d4 a5 b4 c4 e4 g4 Kf4 g3 e6 a4 b6 a3 h6 c3 e5 g2 h7 c2 d6 a2 h5 Nf6 Kg5 f4 b7 f3 h6 f2 b5 Ng8+ e7 Nf6 b6 Nc6 b8N Nb4 d7+ Kf7 e8B+ Ke7 b7 Ng8 e6 Na6 d5 Bg7 Rh2 Bb2 Nc6+ Kd6+ e7 Kc7 d6+ Kb6 b8Q+ Bb7 Nc3 Ra7 Bd2 c1B Qa4 Qc7 d8B Nb4 d7 Ra6 Nf3 Nf6 Ne1 Ng4 Bd3 g1Q Nd1 f1B Ne5 Qc5 Beg6 Nc6 e8N Ra7 Nd6 Nf2 Nf5 Bh3 Ng3 Qa3 Be7 Bg4 Bgf5 Ne4+ Kg6 Rf8 d8B Nc5 h8B Rf7 Bef6 Re7 h7 Ra5 Qb3+ Rb5 Nh1 Rb4 Qc2 Rb3 Qa8 Nb8 Bb4 Bbf3 Rd2 Be4 Qa4 Ba8 Kh6 Kb7 Bfg7 Qd7 Bf8 Kc8 Qa7 Rf7 Bdf6 Re7 Qa6+ Kd8 Qac4 Qb5 Qf4 Bc3 Qh2 Bd4 Rb1 a1Q Qa2 Bc3 Rb2 Bd4 Rc2 Bdb2 Rc4 Ne4 Rc7 Nc5 Ra7
1b1q2qQ/1n1kP3/1qn5/R1q2RQb/2RbB1QR/2R4N/K3QrRB/1N4r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 c5 Kd2 a5 Kc3 g5 Kb3 f5 e4 a4+ Ka2 f4 h4 c4 b4 g4 b6 a3 d6 g3 e6 c3 b7 c2 b5 g2 d5 f3 e5 f2 e7 Na6 b8R Bb7 d7+ Kf7 e8Q+ Kg7 b6 Qc8 d8R Rh7 e6 Kf6 d6 Bf3 b7 Bh6 d7 Qc6 Rdc8 Ne7 d8Q Be3 h6 Qe4 h5 Qd4 Rh3 Qb6 Bd3 f1Q Rc4 Rg7 h7 Bf4 h8Q Nc5 h6 Bh5 Qg4 Qd1 h7 Bg3 Bf4 c1Q Qd5 Nc6 Be4 Ra5 e7 Rb5 Qdg8 Qdd8 Bd6 Bh2 Rhc3 Bf4 Nh3 g1Q Rc8 Rb3 b8R Nb7 Rc2 Rf3 Rg2 Rf2+ Qe2 Qce3 Qd7 Qec5 Qg4 Be5 Ra8 Bd4 Bg3 Be5 Qd5 Bb8 Qdg5+ Kf7 Bh2 Rg6 Qf3+ Ke6 Ra5 Kd7 Rb5 Qd5 Qff4 Q5g8 Rf5 Qc1 Qfg4 Qce3 Qe5 Qec5 h8R Bc7 Ra8 Bb8 Ra5 Rg7 Nc3 Rg6 Rc1 Rg7 Nb1 Rg6 Ka1 a2 R1c3 Rg7 Rh6 Rg6 Qh8 Rg7 Rb3 Rg6 Kb2 a1B+ Ka2 Bd4 Rbc3 Re6 Bf3 Be8 Rh4 Bh5 Qc2 Re1 Be4 Rg1 Qce2
KBqq4/P2N3k/NNr5/1Q3q2/BR1R1Q2/2qRRb2/bN2nR2/n2rb1R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kd3 b5 Kd4 g5 Kc5 Kg7 a4 e5+ d6 c6 h4 e4 d4 e3 f4 b4 f6+ Kh7 f7 g4 f5 b3 h6 e2 d5 e1Q a6 b2 a7 g3 f6 g2 h5 Qd2 a5 Bh3 a6 Qe8 Kb6 c5 Kb7 c4 d7 c3 d8N c2 d6 Qa4 d7 Bc5 f8Q Bd4 f7 Qd3 Bf4 c1Q Nc6 Qe4 d8R Qg6 Bb5 Bc3 Nf3 g1Q Nb4 Q1g5 Re1 Qa5 Qd7 Qgc2 Ne5 Qd3 Na3 b1B Ba4 Qdd2 Re3 Bb2 Qb5 Qg6 Rd4 Bg4 Nd7 Qe6 Nc4 Nc6 Bb8 Bc3 Nb2 Ba2 Qd6 Qe5 f8R Qd8 Rf2 Qf5 Qf4 Nge7 Rdd3 Qcc2 Rg1 Bf3 Rd4 Ng6 Red3 Kg8 h7+ Kg7 Re3 Re8 h8R Re6 Re8 Kh7 h6 Qdd3 Rg8 Be1 Re8 Qdc3 Red3 Rd6 Ree3 Rf6 Bc7 Rc8 a8N Rd6 Bb8 Na5+ Ka7 Rcc6 Nab6 Nb3 Ka8 Na1 a7 Rd5 Na6 Qc1 Qg3 Nf4 Qh2 Kh8 h7 Ne2 Qf4 Q1c2 Rh1 Kg7 h8R Kg6 Rf8 Kg7 Rg1+ Kh7 Rb4 Rd4 Rf6 Rdd6 Rdd4 Rd5 Rd6 Qc1 Rde4 Rd1 Red4 Q1c2 Ne5 Qfc8 Ned7 Qe4 Rdd3 Qf5 R6d4
b2N4/b5nR/Qr6/1NKR2r1/N3BrNb/1k3n2/1bPBRRR1/1BBq2r1 b - - 0 1 illegal: Other
1K2R1RR/B2Nqnbr/bN1B3B/4bbN1/2nQ2R1/3PB3/nnB2Nk1/5r2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 c5 f4 h5 g4 a5 b4 h4 f6 Kg6 b6 c4 b7 c3 d6 a4 Kd5 a3 d7 c2 f5+ Kh7 f7 a2 f6 Kg6 b5 h3 b6 h2 Nh3 e4 Nc3 e3 Nf2 e2 Na4 Be7 f8B e1B f7 Bc5 Bh6 Na6 Kc6 Rh7 b8B Qe7 f8N+ Kf7 b7 Bd4 g6+ Kf6 d8N Bf5 g7 Be5 Nde6 Nc5 Ba7 Nd3 b8B Nb2 Bd6 Rb8 Bhe3 Nh6 g8R Nf7 Nb6 Rd8 Rb1 a1N Ng5 Nb3 Bd3 Ra8 Rg1 h1B+ Be4 Bg2 Rh8 Bf1 Nfd7+ Kg6 Kc7 Ba6 Ra1 Rf8 Ra5 Bg7 Re5 Na5 Bd3 Nac4 Re4 Qf6 Re8 Qe7 Kb8 Kh6 Nf3+ Kg6 g5 Kh5 g6 Be5 Ng5+ Kh4 Ng4 B1g3 Nf2 Bg7 Rg2 B3e5 Rg3 Bd4 Rg1 Bge5 g7 Bc3 g8R Bcd4 Rh1+ Kg3 Rh4 Kg2 Qg4+ Bg3 Qf4 Bg7 Qd4 Bf4 Be2 Bh2 d3 Bhe5 Bcd2 c1N Bd1 Na2 Bc2 Nd8 Nf3 Rf6 Bh6 Nf7 Ng5 Bh3 Re4 Rf4 Be3 Bf5 Ng4 Rf1 Nf2 Rc1 Rf4 Rf1 Rg4+
2N1Rr1Q/nn2Q3/1r1Qb3/R4PR1/QQb4n/B1K3bB/q1Q5/2R1nbkN b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 g4 e5 f4 a5 c4 h5 b4 d5 b6 a4 b5 a3 c6 a2 c7 h4 g6+ Kf6 g5+ Kg7 c5 h3 b7 d4 c6 h2 b6 d3 Bh3 e4 Kc3 e3 Qa4 e2 Ba3 e1N Nd2 Be6 c8R Nh6 c7 Ra6 Ne4 d2 Ne2 d1B N2g3 Bdb3 Nd6 Nc6 b8Q Na7 b7 Rb6 Rg1 Bbc4 Nh1 Qd7 Re8 Qf7 Nc8 Bd6 Rf1 Rf8 f6+ Kh8 g7+ Kh7 g8R Nf5 g6+ Kh6 g7 Kh5 Rc1 Nh4 f5 a1N Rf2 Bf1 Ra2 Nb3 Raa1 Bg3 Ra2 Qd7 f7 Qd5 Raa1 Nc5 Ra2 Nc6 Qba7 Qg2 b8Q Nb7 Q7a5 Na7 Q5b4 Nd6 Raa1 Qa2 Qb7 Bec4 Qd5 Nb7 Qdd6 Be6 Qac6 Be2 Ne7 Kg5 c8Q Qb1 Kd2 Bf1 Bb2 Kh5 Ra5 Qa2 Qca4 Kg5 Qcc2 Bec4 Qd5 Kf4 Kc3 Ke3 Qdd6 Kf3 Ba3 Ke3 Rh8 Rg8 f8Q Be6 Qf6 Rf8 g8Q Bfc4 Rh5 Kf3 Nf2 h1B Nc8 Bg2 Rg5 Bgf1 Qgh8 Ke3 Qfe7 Kf3 Bg4+ Kg2 Nh1+ Kg1 Bh3
K1R1b2r/n5B1/2Q2bk1/n2Qbrp1/BQP3Q1/2QNN2q/1r1NQ2n/1N5R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 d5 Kb4 g5 h4 e5 f4 a6 h6 e4 b6 d4 Ka5 e3 b4 d3 h5 e2 c6 e1R c7 d2 f6 Bg7 h7 Bf8 h6 Be6 c8N Ba2 f5 Qd4 b7 Bg7 b5 Bd5 b6 Bc6 Ne7 Ba4 Nd5 Re4 Bb2 Rg4 Qe2 d1N Ne3 Bb5 Nf3 Nd7 b8N Qd6 b7 Rg3 Nfd2 Qf8 Nc6 Rg2 b8Q Bd3 Qc8 Ne5 Kb6 a5 Kb7 a4 Nb4 a3 Qc6 Bb5 Nd3 a2 c4 Rg3 Bh3 Ne7 Bd4 Rg8 h8Q Nc3 h7 Rb8+ Ka7 Qc8 Qg4 Kf8 f7 Nf3 Qd5 Be5 Qf6 Rg2 h8Q Nh2 Qfc6 Rf2 Qhh5 Kg7 Qe2 Rf4 Qhg4 Rh8 f8Q+ Kh7 f6 Rf5 f7 Bf6 Qfd8 Kg6 f8Q Ba4 Q8d6 Rb2 Qa3 Qe6 Qb8 Nb5+ Ka8 Na7 Qc3 Bb5 Qb7 Bd7 Qbc6 Be8 Qbb4 Qd7 Qa6 Nec6 Be5 Na5 Qac6 Qe6 Bd4 Be7 Bg7 Bd6 Na3 Qd7 Raf1 a1B Nab1 Qe6 Bg2 Be5 Rf3 Rff8 Rf7 Bf6 Rc7 Be5 Bf3 Rf5 Rc8 Bf6 Qe1 Qd7 Bd1 Qe6 Ba4 Qd7 Bf8 Qh7 Qf2 Qh3 Qfe2 Rc2 Qcb3 Be5 Q3c3 Rb2 Bg7
2N1k1N1/3Rr1rn/NBr3bP/3B2NQ/N4bKN/B2q1n2/R1p3B1/Q3b2n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg3 f5 h4 c5 d4 a5 b4 c4 e4 g4 b6 c3 b7 c2 h6 a4 d6 a3 d5 a2 h5 Ra5 e6 Qb6 e7 Rb5 e5 Qc5 h7 Kf7 e8B+ Kg7 e6 Bd7 e7 Qc7 h6+ Kf6 Nf3 Bc8 Ba3 Qc3 d7 Qc5 d8N Bg7 d6 Qc3 d7 Re5 b5 Nc6 b8N Qd3 b6 Nd4 b7 f4+ Kh4 g3 Nf7 g2 d8B g1R Bb6 Rc5 Bc6 Bf5 e8N+ Ke7 Na6 Be5 b8N Nf6 Bd5 Rg7 Bg2 Bg6 Ned6 Re8 h8Q Nh7 Kg4 Rc6 Nh4 f3 Nc3 f2 Nd7 f1N Nf6 Bf4 Ng5 Nf3 Na4 Ng3 Ng8+ Kf8 Rh2 Nh1 Nc8+ Ree7 Rh3 Ke8 Rg3 Nd2 Re3 Nf3 Re6 Qe2 Rd6 Qe4 Rd7 Qd3 Rb1 a1B Rb2 Rd6 Qe2 Rc6 Ra2 Bc3 Qd1 Be1 Qa1 Rgf7 Qhe5 Rg7 Ne4 Rc4 Qh5 Rc6 Ng5
2R5/1KNr2rB/BP1NNb1r/1B3Nn1/BB1nk3/1pb5/1nq3bR/1BQ3Q1 b - - 0 1 illegal: No proof kernel
4bNQ1/4K1BP/1q1R1BN1/2B1B3/3r3n/pr2bRbn/1k1NB1n1/r2N1B1Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 a5 Kd4 f5 Kc5 g5 d4 a4 e4 f4 b4 g4 h4 a3 h6 f3 d6+ Ke6 b6 g3 h5 g2 d5+ Kf7 b5 c6 e6+ Kf6 b7 Ke5 e7 f2 e8B Ra5 h7 Bf5 h6 Be7 Bb2+ Kf4 e5 Ke4 e6 Ra7 b6 Bh4 d7 Bf6 Kd6 c5 e7 c4 Bh5 c3 e8Q+ Ne7 Nh3 g1N Nd2+ Kd4 Qg8 Qe8 d8N Ng6 Bhe2 Na6 b8B Qb5 b7 Bd7 Rb1 Ra8 Ba7+ Nc5 b8B Nh4 Ba1 Be8 Rb3 Bg7 Ke7 Be5 d6 Qb6 d7 Bg3 Bb2 Ne6 Be5+ Ke3 Bg7 Nf4 Ne6 Rd8 Nf8 Nfg2 Ba1 Rb8 d8B Rb7+ Bc7 Rb8 Bf6 Rd8 Bce5 Rd4 Qg4 Rg8 h8N Rg5 h7 Rg6 Nf4 Nh3 Nd3 c2 Bg7 Rh6 Nhg6 c1B Bc3 Rh5 Nb2 Rg5 Qe6 Rf5 Qg8 Rf3 Nb1 Bd2 Qc1 Ke4 Nd1 Be3 Bef6 Rd3 Bce5 Rd4 Qh8 Kd5 Rh2 Ke4 Nd2+ Kd5 Qa1 Kc5 Rc3+ Kb4 Qg8 Ka4 Rc6 Kb4 Rd6 Ka4 Nc4 Kb3 Nd2+ Kc2 Nb2 Kc3 Bc4 Bf7 Nb3 Bd2 Bfe2 f1R Ba6 Qb4 Bd1 Ne3 Bc5 Qb6 Rf2 Neg2 Bb5 Rd3 Rf3 Be3 Nd2 Re1 Bb3 Be8 B3c4 Kc2 Ba6 Rb3 Bab5 Re2 Qh1 Re1 Bf1 Ra1 Nd1 Kc1 Bbe2 Kc2 Nc3 Kb2 Nd1+
Q3rN2/PNb1nnR1/2Qq2n1/1bB2NkN/2r3B1/4R2r/1p3RN1/bR4KN b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kf7 h4 Kf6 f4 g5 Kf2 b5 a4 e5 h6 c5 h5 b4 d6 c4 a6 e4 a7 b3 d7 g4 d5 c3 a5 c2 d6 Ba6 h7 Qc7 d8R Qe7 d7 Qe6 h6 Bg7 Re8 Bd3 d8N Nd7 a6 Bb5 Ba3 c1N Qc2 Qf7 Ne2 g3+ Kg1 g2 Bc5 e3 Nbc3 Qg6 Nb7 Qg4 Ne4+ Kf7 f6 Kg6 f5+ Kf7 N2g3 e2 Rb1 e1B Be2 Bf8 Nf2 Bc4 Nh5 Bb5 Re3 Qb4 Bg4 Rc8 a8Q Rc6 a7 Bd6 Rh4 Bg3 Nh1 Ne7 Rh2 Rg8 h8R Re8 h7 Bc3 Rg8 Bc7 Qe4 Ba1 Rg7+ Kf8 h8N b2 f7 Nd3 Qd5 N3e5 Qf3 Rh6 Qc6 Qa3 Rhh3 Ng6 Rhf3 Nde5 Rf2 Bc4 Bb6 Qd6 Bd4 Ng8 Bc5 Ke7 f8N+ Bf7 Nf4 Kf6 N8e6 Rh3 Nd4 Kg5 f6 Bc4 f7 Bb5 f8N Nf7 Nf5 Ne7 Nh5 Rf3 Rc2 Rh3 Kf2 g1R Rce2 Re1 Rd2 Re2+ Kg1 Rf2 Rde2 Rf4 Rf2 Rb4 Rh7 Nh4 Nhg6 Rd4 Ngf4 Nhg6 Ng2 Rc4 Rg7
n1BBk1B1/5n2/1bB3b1/2B1rQ2/N2N3K/1R2qRr1/Qqr1NpP1/B2Nb3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 Kg3 f5 e4 c5 d4 a5 b4 f4+ Kh4 f3 d6 c4 d7+ Kf7 b6 a4 b7 c3 d5 c2 e6+ Ke7 g6 f2 g7 a3 b5 a2 d6+ Kf6 e7 Kf7 e5 Qb6 d8B Qc5 e8B+ Ke6 d7 Nc6 b8B Na7 b6 Nb5 b7 Rh6 Rh3 Nd6 Ba7 Nc4 b8N Qe3 Ne2 Bc5 Nbc3 Bb6 Bb2 c1Q Qd2 Rg6 Rf3 Rg3 Rb1 a1B Na6 Nh6 g8B+ Nf7 Nd1 Bb7 Bd4 Bc3 Qa2 Rc8 Rb3 Be1 Ba1 Qb2 Nc5+ Kd5 e6 Kd6 e7 Be4 Nec3 Bg6 N5a4 Rc5 Bd3 Re5 Ne2 Ke6 Bf5+ Kf6 Bc7 Kg7 d8Q Kf6 Bb5 Kg7 e8N+ Kf8 Qd3 Ke7 Nf6 Kf8 Nd7+ Ke8 Nac5 Ncd6 Ba4 Nb5 Bd8 Nc7 Bc6 Na8 Na4 Rg4+ Kh3 h4 Be6 Rc4 Qf5 Rc2 Kg4 h3 Kh4 h2 Nb8+ Kf8 Bc8 h1R+ Kg3 Rh5 Kg4 Rg5+ Kh4 Bc7 Bb6 Rg3 Bd4 Bb6 Bc5+ Re7 Bd5 Ke8 Nc6 Re6 Ncd4 Re5 Bc6+
1N2b1Bq/2bB1rq1/5R1B/Bn1Q1NQ1/N1r1B2N/1B2KRnp/5P2/2rb1k2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 c4 a5 g4 e5 b4 h5 g6+ Kf6 g5+ Kg7 b6 d5 c6 d4 b7 e4 c5 h4 c7 d3 b5 a4 b6 a3 c6 a2 Bg2 Bc5 f6+ Kf8 g7+ Kf7 g6+ Ke6 f7 Ke5 f8Q Kd4 Nf3+ Kc4 Rh3 Na6 b8B Ra7 b7 Ne7 Qf5 Bb6 Qg5 Bd7 c8N Be8 c7 Nf5 Nc3 Ng3 Na4 Rf8 g8B+ Rf7 Rb1 a1Q Ne7 Qg7 c8B Bc7 Ke3 d2 Nf5 Ra8 Qh1 d1B Bd7 Qdf6 Ba7 Rc8 b8N Qh8 Rb6 Qfg7 Nc5 Kc3 Rf6 Kc4 Bb6 Kc3 Rh2 h3 N3h4 Kc4 Bf3 Kc3 Rg2 Kc2 Rg1 Kc3 Ba5+ Kc2 Kd4 e3 Na4 e2 Bb7 e1R Qd5 Be2 Bf4 Rc1 Ke3 Bd1 Re1 Bd6 Ba8 Nc7 Bac6 Nb5 Rg1 Nh1 Rg3 Bc7 Rf3 Ng3 Qe6 Be2 Be4+ Kd1 Qc4 Nc3 Qd5+ Ke1 Bb4 Kf1 Ba5 Qgh7 g7 Bd1 Bb1 Nb5 Be4 Re7 Bge6 Rf7 g8B Q7g7 Qc5 Be5 Bb3 Rc7 Qd5 R7c4 Qh5 Bd6 Bh6 Bc7 Qg5
4q3/2bbq1R1/2Nn1BRR/rR1BN1K1/1rNP4/2N3pq/5B1N/kBQ3nr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 c5 h4 a5 b4 a4 e4 c4 d4 a3 d6+ Ke6 b6 g6 h6 a2 b5 c3 h5 c2 d7 Ra5 b7 Rh7 b6 Ra7 Nf3 Ra4 Bd3 Ra8 Rg1 Rf7 h7 Nh6 h8B Nc6 b8N Ng8 h6 Rf6 b7 Bd6 h7 Bc7 Be3 c1R Kg5 f4 Nc3 Qe8 Nh2 f3 Bf2 Ra5 Bb1 Nh6 d8R Nf5 Rd7 Rf7 Bf6 Nd6 h8N Rf8 Rh7 Bd7 Rg7 Rf7 Qc2 Re7 Rg4 Rh1 Qc1 Rf7 Rh4 Rf8 Nf7 Qe7 Kg4 g5 Rh6 Rh8 Kh5 g4 Kg5 g3 Rgg6 Nb4 Nc6 Nc2 b8R Ne1 Rb5 Rb8 Be3 f2 Rg7 f1Q Bf2 Nd3 Rhg6 Nf4 Rh6 Ne2 Rgg6 Ng1 Rg7 Bc8 Rhg6 Kd7 e6+ Ke8 e5 Qh3 Rh6 Bd7 Rgg6 Qf8 e7 Qg7 Rd5 Rb4 Rb5 Qg8 Be4 Qh8 Bd5 Qg7 Rb1 a1Q Rb2 Qa4 Rb7 Rc4 R2b5 Rb4 Ra7 Be6 Rab7 Kd7 e8N Qf8 Ra7 Qe7 Rab7 Nc8 Ned6 Bg4 Nc4 Nd6 Be4 Ke6 Bb1 Qc2 Rb8 Qe4 Rbg8 Qe8 Ne7 Qb7 Nc6 Qa7 R8g7 Qc5 Ne2 Kd5 e6 Bf5 e7 Bd7 Ba2 Ke4+ Nfe5 Qa7 Neg4 Kd3 Nc3 Qf8 e8B Qa8 Re5 Qe7 Bf7 Qb8 Bd5 Qbe8 Qe1 Kc2 Bb1+ Kb3 Rf5 Ra2 Nge5 Ra5 Nd2+ Kb2 Qc1+ Ka1 Ndc4 Ra2 Rf4 Raa4 Re4 Ra6 Re2 Ra5 Rb2 Rba4 Rb8 Rb4 Rb5
3n1Q1B/1Nq2nBk/b3Br1p/1r3n2/2Q1B1Q1/PQ1BRq2/1BN3R1/1K2br2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kf7 d4 Kg7 Kd2 e5 Kc2 b5 g4 c5 f6+ Kg6 a3 b4 a6 e4 a7 c4 f7 h6 f5+ Kg7 d6 c3 d5 e3 g6 e2 d7 e1R d6 Re8 g5 Nc6 Ne2 Nge7 Rg1 Bb7 Nd4 Ng8 Bd3 Nge7 Qg4 Na5 Bb2 Nac6 Rg2 Ba6 Nd2 b3+ Kb1 Nd5 Nc4 Ndb4 Na5 Bc4 Nc2 Ba6 Nb7 Rb8 a8B Qc7 d8Q Nd4 d7 Re6 Qc8 Nbc6 d8B Bb4 f8B+ Kg8 f6 Nf5 g7 Kh7 f7 Rf6 Bde7 Nd8 Qe6 Rg8 Qec4 Ba5 Bd6 Bb4 Be5 Rh8 Nd6 Rb5 Bae4 Rg8 Nb7 Rh8 Bc5 Rf8 Bcd4 Ba5 Bc1 b2 g8B+ Kh8 g6 Bb4 Ka2 b1N Qb3 Nd2 Bb2 Nf3 Re1 Ng5 Kb1 Ba5 Bg3 Qf4 Re3 Qf3 Bf2 Re8 f8Q Ngf7 Qfb4 Rf8 Q4c4 Ng5 Be6 Ngf7 g7+ Kg8 Bg3 Kh7 Bge5 Bb4 Ne1 c2+ Ka2 c1Q Nc2 Qd2 Kb1 Qdf2 Bdc3 Q2g3 Bcd4 Be1 Bdc3 Ng5 Bed4 Qc7 Be5 Kg6 g8Q+ Qg7 Qba4 R6f7 Bg3 Qf2 B4d5 Qe2 Re4 Nh4 Qab3 Rf1 Qf7+ Kh7 Re3+ Nf5 Bge5 Qf3 Qe8 Qd7 B5e4 Qc7 Bh8 Rf7 Bcg7 Rf6 Qe7 Ngf7 Qf8
1Qq5/Bnbq4/N1B1pNkQ/N3B2N/3r2b1/PqrNK3/3Bn1R1/R1N2b2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 d4 c5 f4 b5 h4 g5 d6 e6 f6 g4 a3 c4 a6 g3 d5 g2 h6 c3 h7 c2 f5 b4 d7 b3 a7 b2 h5 Qe8 d8Q Qd7 h6 Qb7 d6 Qc6 d7 Qb7 Ke3 Bd6 Nc3 b1B Nce2 Na6 Ng3 Nb4 Nh5 Na2 Ne2 Qc6 Qd2 Qa4 Rg1 Ba6 Qb8 Be5 d8N+ Ke8 f7+ Ke7 f8N Bd6 f6+ Ke8 f7+ Ke7 Nd7 Nc3 f8N Qb3 Ne5 Nf6 Nfd7 Bc7 Nd3 Nfe4 Nc6+ Kf7 Ndf6 Nc5 Na5 Rc8 h8B Nb7 h7 Kg6 Bg7 Rd8 h8B Rd4 Bh6 Bc4 Bb2 Ba6 Nec1 Ne2 B8g7 Bb5 Bf8 Ba6 Bc5 Bc4 Bf4 Bb5 Be5 Ba6 Bc3 Bb5 Qh8 Rc8 a8N Bc4 Ba7 Ba6 Na2 c1Q Qf8 Qcc2 Nac1 Bb5 Bb4 Qc6 Qb2 Qd7 Bd2 Bc2 Qh8 Bd1 Qb1 Bd8 Qb2 Rc3 Nc7 Qc8 Na6 Bc7 Rh1 Qd7 Rh2 g1Q+ Rf2 Qc8 Bg2 Qh1 Bc6 Qhd5 Qf8 Qdd7 Qh8 Ng3 Qb1 Bg4 Rg2 Ne2 Qh6+ Kf5 Rh2 Qbd5 Bb6 Nc5 Qf8 Kg6 Ba7 Ng1 Rg2 Qc4 Qb4 Qb3 Qh8 Bc4 Qb8 Nb7 Qf8 Bd5 Rg3 Ne2 Rg1 Bg2 Qh8 Bf1 Rg2 Qg7 Qf8 Qgd7 Qh6+
BB2bN1B/NRR1b3/kR1p1N1N/3n1Q1q/2PnB2N/1rq2R2/Kb4r1/4r3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 a5 Kb3 e5 c4 e4 f4 e3 h4 e2 b6 e1Q b7 g4 c6 g3 c7 a4+ Ka2 a3 b4 g2 h6 Bc5 h7 Nf6 b5 Ba7 b6 Ng4 f6 Qa5 f5 Qc3 h5 Ne5 f7+ Ke7 f8R Nd3 f6+ Kd6 f7 Kc5 h6 Nf4 Qd5+ Kb4 Qf5 Nd3 Nd2 Qe8 Rb1+ Ka4 Ne4 Nf2 Bf4 Qa5 Bd3 Qee5 Nf6 Nd1 Nf3 g1R Be4 Ne3 Nh4 Rhg8 h8B Re1 h7 Nc6 b8N Nd4 b7 Nd5 Rb6 Qc3 Nc6 Rb8 Rf1 Rg6 Rf3 Rg5 Rd8 Qe8 f8N Qh5 Re8 Rgg1 Re7 Rg2+ Rb2 Bc5 Na7 Ka5 Rg7 Ra8 b8R Be7 Rb6 Rb8 Bh2 Ba6 c8B Bb5 Bb7 Bc6 Bc7 d6 Ba8 Be8 Rb7+ Ka6 Rf7 Rc8 Bb8 Rc6 Rg7 Rb6 Rf7 Rb3 Rg7 Bd8 Rgc7 Be7 Bg7 Nc2 h8N Nd4 Nf7 Re3 Ka1 a2 Bh8 Re1+ Bb1 Ra3 Nh6 Qd2 Rc2 Rc3 Kb2 a1B+ Ka2 Qc1 Rcb2 Rce3 Rff2 Rc3 R2b5 Bb2 Be4 Rb3 Rf3 Qc3 R5b6+
1Nr1q1n1/1RB2k1b/B1p1R2Q/2rQ2R1/7Q/QQn1K1b1/PNQ4R/r1nq4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 g5 h4 b5 d4 e5 f4 c6 f6 e4 d6 g4 f7+ Kd7 a6 Ke6 f5+ Kf6 h6 b4 d5 b3 d7 g3 d6 g2 h7 b2 h5 e3 a7 Nh6 Na3 b1R Nf3 g1Q Ne5 Rb5 Rb1 Qg5 Qc2 Qf4 Nac4 Rb4 Nb2 Be7 f8R+ Kg7 Rf6 Ng8 Re6 Bg5 f6+ Kf8 h6 Qf5 f7 Ne7 Rg1 Bf6 Rg5 Qe8 d8Q Ng8 d7 Na6 Qb6 Nc5 d8Q Rb5 Qd5 Ne4 Qb8 Ra5 Qbb3 Qf3+ Kd3 Rb8 a8Q Rc5 Qaa3 e2+ Be3 Qh1 Bf4 e1N+ Ke3 Nc3 Ba6 Nd3 Bg3 Nc1 Bf4 Ne7 Bh2 Rg8 h8Q Qd1 h7 Bd7 Bf4 Rc8 Bh2 Bg7 Bf4 Bh6 Qf6 Rg6 h8R+ Ng8 Bg3 Bg7 Rh2 Bh8 Qf4 Rf6 Qh4 Rf1 Nec4 Bg7 Bc7 Be5 Nb6 Bd6 Re7 Bf5 Re6 Bg6 Nd7+ Kg7 Nb8 Bg3 Rf5 Bh7 f8Q+ Kh8 Qfd6 Kg7 Rg5+ Kf7 Qdf4+ Bf5 Qh6 Rg1 Qg4 Bh7 Qgh4 Qh5 Nd3 N1e2 Qb5 Re1 Rb3 Ra1 Nb2 Nc1 Qba4 Qg4 Rb7 Qd1 Q4b3
r1r1b2k/Q2B4/pNq1NP1n/1NbN1NR1/3q1n1R/QNBnb3/2R5/5K1R b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 d4 g5 h4 Kg7 f4 c5 f6+ Kh7 b6 e5 f7 a6 f5 g4 d6 g3 d7 e4 h6 c4 b5 e3 d5 g2 h5 e2 b7 c3 b6 c2 f6 Qe7 d8R Qe6 d6 Qg4 d7 Nc6 b8Q Qd4 b7 Qb2 Nc3 Nb4 Ra5 Bg7 Nb5 Qb1 Nf3 g1B Bh3 Bc5 Nh4 Nc6 Bd2 c1N Qb3 Bgf8 Bc3 Nge7 Qa7 Nd4 b8N Ne6 Qa3 Be3 Nc6 Ng8 Nf5 Bg1 Ncd4 Bh2 Nb3 Bb7 Rc8 Qa2 d8N Nd4 Ne6 Qc2 Rc4 Bc5 Kf2 Ne7 f8N+ Kg8 Bg4 Bc6 Nd7 Ng6 Nb6 Nf4 Bh3 Bd7 Ke1 Bg1 h7+ Kf7 h6 Rhc8 h8R Be3 Rh7+ Kg8 Bg4 Be8 Bh3 Nc6 Rc7 Ne7 h7+ Kf7 h8N+ Kg8 Rc6 Qd3 Ng6 Qd4 Nfd6 Nf5 Ne7+ Kh8 Ned5 Nh6 Nf5 Qd3 Re4 Qd4 Rc7 Ng6 Rh4 Nf4 Rg7 Bg1 Rg5 Ncd3+ Kd2 Bf2 Ra4 Bg1 Rc4 e1Q+ Kc2 Nh5 Ba5 Qee5 Kd1 Qef4 Ke2 Bg6 Nfd6 Be8 Nec7 Qc1 Bd7 Bb4 Ne6 Be3 Nf5 Bd6 Be1 Nhf4+ Kf1 Be7 Rc6 Qcc5 Rc7 Qd6 Rc3 Qc6 Rc2 Bc5 Bc3
N4BNn/2b1p3/q1nB1k2/bR2r1N1/2KRbqP1/B1BR3q/1rN1Q2R/3B4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 h5 b4 a5 g4 c5 f4 a4 f6 a3 d6 h4 b6 h3 g6+ Ke6 f5+ Ke5 f7 h2 d7 a2 b5 Bb7 g7 Bf3 f6 Na6 b7 Ra7 b8R Rc7 b6 Rb7 Qe2+ Be4+ Kc4 Rh4 d4+ Ke6 d5+ Ke5 d6 Rh6 Na3 Ke6 Nh3 Nb4 Ng5+ Ke5 Nc2 Rh5 Ba3 Qc7 d8N Nh6 g8N Bg7 f8B Nf7 d7 Nh8 f7 Nc6 Rd1 a1Q Nde6 Qd6 d8R Qa2+ Kc3 c4 Nc7 Qf6 R1d4 Qf4 Na8 Bf6 Rg1 h1Q Rg2 Qh3+ Rd3 Bg7 Rd4 Bh6 Rh2 Qa1+ Bb2 Qa6 Ba3 Bg7 Bg2 Bf6 Bf3 Bg7 Kb2 c3+ Kb3 Bf6 Bh6 Bg7 f8B Bf6 Ne3 c2 Bhg7 c1B Nc2 Be3 Kc3 Bd2+ Kb3 Ra7 b7 Ba5 Re8 Bc7 b8B Rb7+ Kc3 Rb2 Red8 Qf5 Rb4 Qf4 R8d4 Qb7 Kc4 Qc8 Nh7 Qa6+ Rb5+ Ke6 Rg2 Ba5 Bbd6 Be5 Rh2 Rf5 Bf6 Kf7 Ng5+ Kg6 Bdc5 Bec7 Bd6 Re5 Rd5 Re6 Bc3 Re5 R5d4 Qc1 Qd2 Qcf1 Bd1 Qf4 Nh7 Kf7 Qe3 Ke6 Qe2 Kf7 Ng5+ Kg6 Nh6 Kf6 Ng8+
5N2/Q1R1prk1/rn2B1qN/6B1/1PR4r/1qN2N2/bRRnKRR1/Q2nb3 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 d4 a5 h4 g5 f4 c5 b6 g4 b7 g3 f6 a4 h6 c4 h5 g2 f5 c3 d6 a3 h7 a2 d5 c2 d7 Qe8 d8R Bh6 d6 Be6 d7 Ra6 Ke2 Bf4 h6 Bb3 Nf3 g1Q Rc8 Ra8 d8R Qg6 Rd2 Qb5+ Rc4 Ba4 Rg1 Bh2 Nc3 Qg7 Rb1 a1N Rb2 Bb3 Bh3 Qa4 Rg2 Nd7 b8Q Ba2 Qa7 Qb3 Qe1 Kf8 f7 Nb6 Rd7 Bc7 Bg5 Bg3 Rdc7 c1R Rc2 Nf6 Qg1 Rg8 h8R Nfd5 h7 Qg6 Qf1 Kg7 f8N Be1 f6+ Kf7 Bg4 Ne3 Qg1 Rg7 Be6+ Ke8 Rg8 Nd1 h8N Rh7 Nf7 Rh4 Nh6 Rb1 Qb7 Ra6 Qa7 Rc1 Rb2 Rc2+ Kf1 Re2 Rh2 Ree4 Rhc2 Ref4 Rg7 Qa3 Qh1 Nb3 Ke2 Nd2 Qg1 Qa4 Qd4 Qb3 Qe5 Rf5 Qa5 Bb1 Qa1 Ba2 f7+ Kd8 Be3 Nb1 Ng5 Nd2 Nd7 Qh7 Bf4 Qg8 Be3 Qe8 f8R Rf3 Rf5 Qf7 Nf8 Ke8 Nge4 Qg8 Rg2 Qg6 Ng5 Rff4 Rd5 Rf5 Rf2 Rff4 Nf3 Rf6 Rg5 Rff4 Nh7 Rf8 Rgg2 Rf7 Nhg5 Kf8 Nh7+ Kg7 Nf8 Rh1 Bf4 Rh4 Bg5
R2BBqq1/1NNPn3/Qr1b4/QRQb4/1K2QpQ1/n1rR1RQ1/5nq1/5k2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 Kd2 f5 Kc3 c5 e4 c4 e6 Kd6 e7 a4 e8Q a3 b6 a2 b5 g4 h6 g3 h7 g2 h5 Nh6 b7 Qf6 b6 Bg7 Nf3 g1N Qb5 Ra7 e5+ Ke7 d6+ Ke6 d7 Ra8 d8R Nc6 b8Q Re8 h8Q Rf8 b7 Qg6 d5+ Ke7 d6+ Ke6 Nd4+ Kf7 e6+ Kf6 e7 Ne5 e8Q Nh3 Kb4 c3 Qa5 c2 Nc3 Nf2 Na4 Be6 Rh3 Bd5 Nb5 Ra6 Rf3 Qg2 Nc7 Rb6+ Bb5 Nc4 Qe4 Ng8 h6 Ne7 h7 Na3 Nc5 Rg8 Rd7 Rc8 Qf8+ Kg6 h8Q Be5 Bb2 c1Q Qhf6+ Kh5 Qe6 Bh2 Bf6 Qf4 Qf1 Kg4 Qe2 Ng8 Bd8 Ne7 Q2c4 Bg3 Qg6+ Kh3 Qg4+ Kh2 Qcd3 Qh6 Qba8 Qg7 b8R Qg8 Nb7 Bf4 Rb1 a1Q Q8a6 Qf6 Ra8 Qff7 Rb3 Kg1 Qc3 Be5 Qfg7 f4 Qc5 Qgf8 Qg3 Q7g8 Q7g4 Nf5 Rbd3 Kf1 Rf7 Ne7 Rf5 Qg1 Ka4 Qh2 Be8 Qg2 d7 Bd6 Qc2 Be6 Rb5 Bd5 Qc5 Qf5 Ne6 Rcc6 Nc7 Qff8 Qcb4 Rc2 Qc5 Rc3 Kb4
2N3R1/1r1p1R2/B1nrP1k1/Q3r1B1/6Rn/B2RqNK1/3Rb1RB/2Q1n1bq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 a5 b4 g5 c4 f5 h4 Kf7 e4 a4 b6 g4 h6 f4 h5 a3 b5 f3 h7 a2 h6 Ba6 c6 Qc8 b7 Ba3 b6 Nf6 c5 Rf8 h8Q Rg8 c7 Be2 e6+ Kg6 e7 Na6 e8R Bd3 b8R Ra7 c6 Nh7 e5 Be2 b7 Rg7 e6 Bd6 Rh4 Bc4 Re7 Nf8 h7 Be5 Bg5 Qe8 c8R Bb5 c7 Bf4 Nd2 Qf7 Qc1 Nb4 Nc4 Be3+ Kg3 f2 Nb6 Be2 Nf3 Nc6 Qg8 Qf6 h8B Qc3 Rf7 Bc5 Rh2 Qe3 Rg2 Ra6 Rb1 a1N Rb3 Nc2 Rd3 Ne1 Ra8 Ra7 b8B Rb7 Ra2 Bd4 Rad2 Bc5 Kh4 g3 Re8 Bd4 c8R Bc5 Rc7 Bd4 Nc8 Ba7 Rh2 g2 Kg3 g1Q+ Rg2 Qh1 Rd8 Ne7 Rc4 Nc6 Bd6 Bc5 Rg4 Bb6 Ba3 Ba7 Rg1 Bc5 Bh3 f1R Bg2 Rf2 Bf1 Rh2 Rg2 Rh4 Rb4 Rd4 Re8 Rd6 Rg4 Kh5 Rd8 Ng6 Qe8 Rg8 Be5 Nh4 Qe7 Rg6 Rg8 Rf6 Qd8 Rf5 Bef4 Re5 Qa5 Qe4 Na7 Bg1 Nc8 Qe3 Rd4 Bd1 Ba6 Be2 R4d3 Bh2+ Kh3 Bg1+ Bh2 Ne7 Bf6 Nc6 Kg3 Kh6 Bg5+ Kh5 Rh8+ Kg6 Rg8+
1b2rqn1/2PBNq1B/b5Nr/1N1B1n1q/1Q1R1NR1/2pR1BRb/8/k1K1B3 b - - 0 1 illegal: No proof kernel
3B4/1P1n1r2/qr1N1Br1/1q1pN1N1/1RQ3R1/1Kb1kBbB/N3n1bR/5RR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 h4 Ke5 f4+ Ke4 b4 a5 c6 e5 c7 g5 h6 d5 h7 a4 f6 a3 b6 g4 h5 g3 f7 g2 b7 a2 h6 Ra4 b5 Ne7 b6 Be6 c8B Qd7 f5 Rd4 f6 Na6 b8R Qc7+ Kb3 Ng8 c4 Qb7 c5 Bg4 c6 Qd7 c7 Nb4 Qe2+ Kf5 Rh4 e4 Nc3 e3 Qc4 Kf4 Nh3+ Kf3 Ng5+ Kf2 Be2 g1R Bf3 Bd6 f8R e2 f7 Bh3 Rg4 e1B Rb1 a1Q Na2 Nf6 b7 Rg8 h8R Qe8 h7 Rg6 Bf5 Rf4 c8N Be5 Nd6 Bg2 Rhg8 Rh1 h8B Nd7 Bf6 B5c3 Rh8 Qe2 Rh2 Nc2 Bb2 Rf1 Bd8 Ke3 Ra8 Bh4 Ra4 Bg3 Rb4 Qd3 Be6 Rff6 Rg8 Rf2 f8N Qe2 Rf1 Nd4+ Ka3 Qd3 Rg7 Ne2 Kb3 Qd4 Rg8 Qb6 Bf5 Qb5 Be6 Rg7 Ng6 Rgf7 Ne5 Rg6 Rg1 Rf1 Rf4 Rd1 Bh3 Rd4 Rg4 Rdf4 Rf8 R4f6 Nc1 Qaa6 Na2 Re6 Be4 Rfe7 Rff1 Rf7 Bf3 Ref6 Nde4 Rb6 Nd6 Bce1 Nc6 Bd2 Bbf6 Bc3 Ne5
2b1R1QN/pq3RR1/P1N1B1N1/3rBr1N/1nB5/3qk1r1/1K3Rb1/B1n2q1B b - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Bh6 dxe5 Bg5 hxg5 Ke7 Bf4 Kf8 Bc1 Ke8 Kd2 Ke7 Kc3 d5 f4 b5 a4 h5 e4 h4 e6 h3 g6 Kf6 a5 g3 e7 d4+ Kb2 d3 e8B g2 c4 b4 e5+ Kg7 c6 Kh6 g7 h2 c5 b3 e6 d2 e7 Nd7 c7 Bb7 c8N Qb6 f6 Qb4 c6 Qb5 f5 Kg5 a6 Kf4 c7 Rh7 f7 Qb6 f8B Qe6 f6 Rh6 f7 Ke4 Na3 Qc4 Qg4+ Ke3 Nb5 Ngf6 g8R Qc5 Bc4 Qg5 Nbd6 Nd5 Ra2 Qh4 Bg7 Nc5 f8N Qh5 Be5 Qg5 Bc6 Rh5 e8R Qf5 Nh3 g1Q Nf7 Qd3 Rg7 Nb4 Nf4 Qgf1 N8g6 Rf5 Nce7 Bc8 Nh5 Rb8 Rg1 h1B Nfh8 Bg2 Rf7 Rb5 Ba8 Rf3 Nc6 Rg3 Nh4 Ra5 Qg8 Rb5 N4g6 Ra5 Ka1 Rb5 Rc2 b2+ Kb1 Nb3 Bb7 Bch3 c8B Ra5 B8e6 Bf5 Bed5 Bc8 Be6 Rb5 Bc3 Rf5 Be5 Nd5 Ka2 b1Q+ Ka3 Nb4 Bcb2 d1R Rf2 Nc1+ Bbc3 Qd7 Ba1 Rd5 Ba8 Qbd3+ Kb2 Qfd1 Rgf1 Qb7 Rg7 Rfg5 Rff7 Rf5 Rf2 Q1f1 Rh7 Rd4 Bf6 Qe7 Nb8 Bh3 Bh1 Bg2 Be5 Rd5 Nc6 Qb7 Rhg7
n4Q2/8/Nk1nR1NN/2bKn1Rr/N1RN2B1/Nq1nRp2/1rbn1P1B/2Q5 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 g5 Kc3 f5 Kc4 a5 h4 g4 e4 d6 b6 Kd7 c6+ Ke7 c7 Kd7 e6+ Kc6 e5 a4 e7 f4 e8R g3 b7 a3 e6 g2 h6 a2 h7 f3 e7 Ra5 h5 Bg4 c8R+ Qc7 h6 Ra6 Nc3 Rb6 Bf4 Bg7 Qc1 Nd7 b8N+ Kb7+ Kd5 Bd4 Nge2 g1N Na6 Qb8 Rh5 Rb2 Bh3 Kb6 Bh2 Ne5 Rc4 Bf5 Rg5 Bc5 Nd4 Ne2 Bg4 Ng3 Rb1 Rb5 Rb3 a1N Na2 Rb4 Re3 Ne4 Nc3 Rb3 Rd8 Rb2 e8Q Nb3 Qf8 Nbd2 Re8 Bd7 Re6 Ba4 Ncb5 Bb3 Na3 Ba4 c3 Bc2 Qg1 Ka7 Rb4 Qe8 c4 Qb5 Nc7 Nf7 Qc1 Bb6+ c5 Nf1 Rc4 Qb3 c6 Ne5 Ne2 Bd4 Na6 Bb6 Re8 Ngf6+ Ke6 d5 c7 Nd6 c8N+ Kb7 Ne7 d4 Nc3 Nfd7 Kd5 d3 Qf7 d2 Nc6 Ba7 Nd4 Bb6 Re6 Ba7 Qf8 Nb6+ Kc5 Na8+ Kd5 d1N Qd8 Bc5 Qe8 Rb1 Qf8 Rg8 h8N Nd2 Ng6 Rh8 h7 Kb6 Re8 Nb2 Re6 Rg8 h8N Nbd3 Nf7 Rh8 Nh4 Rh5 Nh6 Rb2 Ng6 Rh4 Ndf5 Rh3 Nd4 Rh5 Na4+
2NN4/1bk3B1/1r4R1/BN2RKR1/1Nb1n3/1NbBb3/pPQ1B2n/nq2r1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 c5 Ke4 h5 f4 a5 d4 e5 g4 h4 f6 a4 f5 c4 f7 h3 b6 c3 d6 a3 b7 c2 g6 a2 g5 h2 g7 Rh7 f6 Qc7 g6 Qd8 d5 Rh8 Nd2 Ra5 Bd3 Rh7 Ngf3 Rc5 Kf5 e4 Nd4 e3 Rg1 h1B Rg5 e2 Nb5 e1N Nb3 Qb6 Bd2 c1B Ba5 Qc6 Qc2 Be7 f8R Rh8 f7 Rh3 Re8 Na6 f8B Bf6 b8R Rh6 Re5 Nf3 Rb6 Be3 Rag1 Nb4 Be2 Kd8+ d7 Nh2 Bd3 Ba6 Be2 Be7 Bd3 Nf6 g8B Ne4 g7 Qc7 Rbg6 Bf6 Be2 Rc6 Bh7 Rb6 g8N Qc3 Bg7 Qe1 Ne7 Qb1 Nc8 Bf3 Nc3 Kc7 d8N Bc4 Nc6 Bg2 Bg8 Rh8 Bh7 Re8 d6+ Kb7 d7 Kc7 Qd2 Nc2 d8N Na1 Nb4 Re7 Qc2 Re6 Na4 Re7 Nac5 Re6 Ncb7 Bf3 Nbd6 Re7 Re6 Bc3 Nb5+ Kb8 Re1 Nd2 Rgf6 Rd7 Re5 Bb7 Kg6 Rf7 Rc6 Rf1 Rce6 Rg1 Kf6 Rh1 Bhd3 Ne4+ Kf5 Rg1 Reg6 Rh1 Rf1 Rg1 Rf2 Rh1 Rfg2 Re1 N5d4 Kc7 R2g3 Nc5 Rg1 Ne4 Nb5+
3b2BN/K2NRnN1/1B1r4/2N1R1R1/bR1qn1nN/3n1P1B/b1pB1k2/3Qr3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 a5 g4 e5 d4 h5 b4 e4 b6 e3 Kb5 h4 f6 Kg6 b7 a4 d6 c4 d5 e2 f7 e1N d7 a3 d6 a2 Nc3 h3 Na4 c3 Bd2 c2 Nf3 h2 Nc5 Rh5 Bh3 Ra6 Nh4+ Kh7 f3 Nd3 g6+ Kg7 g5 Be7 f8N Nh6 Re1 h1B Re5 Nc6 b8N Ng4 Nfe6+ Kg8 g7 Kf7 g8R Bg2 g6+ Kf6 g7 Bf1 Rc1 a1N Re8 Be2 g8B Nb3 Ng7 Ra1 Rg5 Nce5 Rb1 Nf7 Rc1 Bf8 Ree5 Be7 Kc6 Rh6 b5 Ba6 b6 Bb5+ Kb7 Ba4 Ka7 Rg6 b7 Qb6+ Ka8 Bd8 Re7 Qb4 Ka7 Qd4 Rge5 Na5 Rb1 Nc4 Rb4 Bf1 Qe2 Re1 Qd1 Ncb2 Rg5 Ndf2 Ree5 Nbd3 Re7 Ba5 d8B Ne4 d7 Be2 Bb6 Rh6 d8N Bf1 Ngf5 Be2 Rd7 Ke5 Re7+ Kd5 Nbd7 Rd6 b8R Bf1 Nc6 Be2 Nce5 Bf1 Rbe8 Be2 Bc7 Bf1 Bb8 Bd8 Neg6 Qg1 Nd4+ Nde5 Bc7 Bc4 Ndf5 Ba2 Bb6 Nd3 Re6 Qf2 Nh8 Qe3 Rb3 Kc4 Ng7 Kd4 R8e7 Qg1 Bc3+ Ke3 Ree5 Qf2 Rb4 Qg1 Qb1 Ke2 Qa1 Qd4 Bd2 Kf2 Qd1
1NRbQ2n/N3rR1k/8/1bB1R1q1/5rnp/1B2nr1Q/R2PR2r/1RQ2QK1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 g4 Kg7 f4 c5 Kf2 h5 b6 a5 f6+ Kg6 d6 e5 b7 c4 d7 h4 b5 e4 f5+ Kh7 f7 c3 f6 c2 g6+ Kh6 b6 a4 g7 a3 g5+ Kh7 g6+ Kh6 Ra2 Qc7 d8R Qc4 Rd5 Qc7 Re5 Na6 b8R Be6 b7 Ne7 g8R Nb4 g7 Ng6 Rc8 Nd5 b8Q Qa5 Bc4 Kh7 Nc3 Be7 f8Q Bd7 f7 Ne3 Bb3 Bd8 Nge2 Ng4+ Kg1 e3 Nd4 Bb5 Nc6 e2 Qa7 e1N Qe3 Ng2 Nb8 Ra7 Qh3 Re7 Rh2 N2e3 Re2 Nd5 Qe8 Nde3 Rf8 Rg8 Bb2 c1R Qe1 Rh8 g8R Ra1 Qc1 Rb1 Ra1 a2 Ba3 Rb2 Rb1 a1R Bc5 Rba2 Nd5 Ra3 Nb4 Ra4 N4c6 Rf4 Na7 Rf3 Qh1 Ra4 Qh3 Raf4 Re4 Rf2 Re5 Rh2 Rg7+ Kh6 Rfg8 Rh7 f8Q Nh8 Rf7+ Rg7 Qc6+ Kh7 Qcg2 Rf3 Qe8 Rf4 Qgf1 Rf3 Rff8 Rgf7 Rg6 R7f4 Ra6 Qb6 Rff5 Qf6 Ra2 Qg5 Rf7+
kQ2RRN1/n3N3/B1r1QB2/5b1R/1q3pBK/1bRrBPnn/4rRr1/3R4 b - - 0 1 illegal: No possible last move, all moves rejected
3N1K2/Q4Bn1/R1Rnbb1B/1R1Q3b/2PB1rr1/N1qB1bR1/1B1p4/4nk1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 b4 a5 g4 d6 c4 a4 b6 h4 b5 a3 g6 h3 c6 h2 c7 a2 g7 f6 b7 Qe7 b6 Qd7 g5 Qc6+ Qd5+ Kd7 Kf5 Be7 Kg6 f5 Kf7 f4 e4 f3 g6 f2 Bd3 f1B Bb2 Qb5 Nh3 Bh4 Ng5 Qb4 Kf8 Na6 b8B Nf6+ g8B Nh5 b7 Qc3 g7 Nc5 Nf7 Bf6 Na3 Be2 Rhb1 h1B Ba7 Bhf3 b8B Nb7 Bd4 Rh6 Bba7 Rg6 Nd8 Rg4 Bf7 Rf4 g8R Ng7 Be3 Bh5 Bec1 Bef3 Bd4 Rg4 Bh6 Ra7 Qa5 d5 e6+ Kd6 e7 Be6 e8Q Ra8 c8R Ra7 Bb6 Ke5 Qea4 Nd6 Rc6 Rd7 Qa8 d4 Q4a7 Rc7 Rg1 Rd7 Rg3 Re7 Rb1 a1N Bc5 Nc2 Ra1 Nge8 Rg5+ Kf4 e5 Ke3 Bb6 Kf2 Bc5 Bd7 e6 Ne1 Bb6 Ng7 Rb5 Bc8 Ra2 Rb7 e7 Be6 e8B Rf4 Bd7 Rc7 Bc8 Re7 Bb7 Rd7 Bb1 Kf1 Bbg6 d3 Bd4 d2 Bd3+ Be2 Rcb6 Rc7 Bh1 Rc5 Ra1 Rg5 Qd5 Rg6 Rc6 Rgg4 Nc2 Bg5 Raa6 Bf6 Bf5 Bd1 Na3 Bf3 Bd3+
N3Q3/nNR1bQ2/1B2qN1N/1bN4K/pb1R4/1Q3B1n/nPQr4/rk2b2N b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 d4+ Ke4 h4 a5 f4 g5 d6 e5 d5 c5 d7 a4 b6 c4 f6 c3 d6 c2 h6 Ra6 h5 Ra7 f7 Bb7 h7 Na6 h6 Bg7 f8N Bc8 f5 Qe8 d8N Qe6 d7 Nb8 b7 Qc6 f6 Qc4 f7 Ra8 Nh3 Qb4 Be3 c1N Nfe6 Bf6 f8Q Qc4 Be2 Nc6 b8Q Na2 Qbb3 Na7 Nc7 Ba6 Bb6 Ne7 Nde6 Rd8 Na8 Nd5 Rh2 Rg8 h8Q Bb5 h7 Be7 Kh5 g4 Qff1 Rg7 Qe8 g3 h8N g2 Nf7 g1B Nh6 Bgc5 Qff7 Rg1 Nc3+ Ke3 Bf3 e4 Qc1+ Kd3 Rc2 e3 Qb1 e2 Ne4+ Qc3 Qc1 Bb4 Nf6 Rd1 Qb1 e1B Rc1+ Kd2 Nf2 Qe3 Nh1 Qe4 Rc7 Nf4+ Kg5 Nh3+ Kh5 Qe2 Qe4 Qe3 Rac1 Qe2 R1c4 Rc1 Qeg6 Ra1 Rf4 Qc4 Qg2+ Kc1 Qh2 Rb8 d8N Kb1 Nc5 Qe6 Ndb7 Rd8 Qf2 Rd1 Rd4 Rd3 Qe2 Rd1 Qec4 Rd2 Qcc2+
KNbQ1rR1/1NN1rNB1/Q6R/2rb1rP1/3NN3/1q2BBk1/1p3n1n/1B2b3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 Kd6 Ke4 e5 f4 c5 d4 b5 g4 h5 a4 h4 g6 b4 a6 c4 a7 b3 g5 b2 g7 c3 a5 h3 f6 c2 a6 h2 f5 Qb6 f7 Qb7 f6 Qb5 Nc3 Be7 f8B Rh5 f7 Qa4 Qd3 Qc6 Be3 c1R Nge2 Nh6 g8N Rc2 Bg7 Rc1 f8N Nf7 Nd7 Qc5 Nh6 Nc6 Nb8 Bf6 Bh3 Qb4 Bf5 Rh3 Bg6 Ke7 d6+ Ke6 d7 Qb3 d8Q Rf3 Ra5 Nb4 Rd5 Nh8 Nf7 Rf5 Qb5 Nd3 Rc5 Bd7 Rc8 Be7 Bh7 Bb4 Qc7 Rc2 d5+ Ke7 d6+ Ke6 Bd2 Rf2 Rg8 Ba5 Nc6 Rf8 a8B Ng6 a7 Bc8 d7 Nh4 Nb8 Nf3 Bc6 Bb4 a8N Rf1 Qa6 Rcc1 Rg1 h1B Rg3 Ba5 Rh3 Bb4 Bg6 Ba5 Rh6 Nh2+ Ke3 e4 Kd4 e3 Qcb6 Nf4 Kc5 Nh3 Bb1+ Rf6 Qc7 Nf2 Qcb6 Rc2 d8N+ Kf5 Nb7 Kg4 Nd4 e2 Qd8 e1R Nc7 Re7 Be3 Rf5+ Bd5 Bb4+ Kb6 Kg3 Ka7 Bf3 Ka8 Be4 N3b5 Be1 N5d6 Rc5 Bc6 Bd3 Bd5 Bc4 Bf3 Bd5 Ne4+
4Qnb1/BR1B2r1/1r2r2N/p2k1B2/RRPnnq1R/1B4bN/R3Rn2/KQ6 b - - 0 1 illegal: No possible last move, all moves rejected
3n4/n2Q1n1B/RN2BPr1/K4R1R/8/N1p1B1Bq/2Qr1RB1/1Bbkb1bb b - - 0 1 illegal: No proof kernel
1RBK2b1/1RQ1nRr1/1R1p1bQP/b2krQ1R/8/1N1Q3r/3N4/rR2Bqn1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 g5 Kb4 e5 h4 a6 c4 e4 f4 d6 c6 g4 f6 Ke6 c5 e3 c7 g3 Ka5 e2 Kb6 e1R b4 g2 f7 a5 h6 a4 f5+ Ke5 f6 a3 h7 a2 c6 Qd7 h5 Qe7 h6 Bg7 f8Q Ke6 f7 Ke5 Nf3+ Ke6 Nfd2 g1R Rh5 Rh1 Nb3 Bc3 N1d2 Qf6 Rb1 a1B Qe8+ Qe7 f8R Bd7 c8Q Bd4+ Kc7 Bc5 b6 Rh2 b5 Be5 b7 Be3 b6 Bc3 Rf7 Ba5 Ba6 Bd4 Qc2 Rh4 Qd3 Rh3 Bb2 Re2 Bc3 Re5 Qcd8 Kd5 Qc8 Qe6 Kd8 Qf5 c7 Ba4 Bb4 Qf4 Qcf5 Ne7 c8Q Rg8 h8R Qf1 Rhh7 Rg7 Qc7 Nd7+ b8R Bb5 b7 Bc4 Bc3 Rg4 Ne4 Nc8 Qh8 Ndb6 Rf6 Na4 Rd7 Ne7 Rf8 Bb4 Qa5+ Kc6 Qg7 Bg8 Be1 Rd5 Ned2 Bf6 Rf7 Nc3 Qgh7 Rg7 Qhg6 Ra7 Ra8 Rc5 b8R Re5 Rb5 Ne2 Bc8 Ng1 Rab8 Ra8 Rdb7 Ra6 Qa3 Ra4 Qc1+ Bc3 Qe2 Ra1 R5b6+ Kd5 Qcc2 Bb4 Qc7 Ba5 Qed3+
k1Qbr3/bRq4p/6P1/3bB1Qn/1r1QRnRK/rQb1NQ2/2Q3B1/5NR1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 c5 Kg3 Kc7 b4 Kb7 d4 a5 f6 e5 d6 e4 g6 e3 d5 e2 g7 e1R d7 a4 f5 a3 d6 a2 f7 c4 f6 c3 b6 c2 b5 Ra4 Bf4 c1B Qc2 Na6 Nh3 Re7 Rg1 Rae4 Be5 Re1 Nf2 Qc7 d8Q Bh3 d7 Qc8 Nd2 Nc5 Nd1 Qc7 Kh4 Bf5 g4 Qd6 g5 Ne4 Ne3 Re6 Bg2 Re2 Ndf1 Be7 f8Q Qc7 f7 Nf6 g8R Nd5 Rb1 a1B Rb4 Ng3 Re4 Rf6 Qfe8 Bg4 f8Q Nh5 Qg6 Re6 Qf3 Ndf4 Qf7 Rg6 Qfb3 Bc3 Rg7 Rh6 Qdg8 Rg6 d8Q Be6 Qd4 Bd5 Qd8 Bc5 Qf6 Kb8 b7 Re8 Qd8+ Ka7 b8R Rb6 g6 Ra6 Qg5 Ra3 Rb7+ Ka8 b6 Be7 Rf7 Bd8 Rf6 B1d2 Re6 Re1 Re7 Rb1 Rf7 Nh3 Rff4 Rb2 Rg4 N3f4 Qbc4 Rb4 Q4b3 Bc1 Qdc4 B1b2 Qc5 Qg7 Rc7 Bd4 b7+ Kb8 Q5c3 Ba7 Qd4 Qd7 Rc6+ Qd6 Rb6 Bc3 Rb5 Kc7 b8Q+ Kc6 Qc8+ Qc7 Rc5+ Kb6 Qf5 Kb7 Rb5+ Ka8 Rb7 Raa4 Qe6 Ra3 Qc8+
1RRb1KB1/r4pN1/RB1B1N2/3R2B1/1r1b3n/r3N3/NbkN1P2/r4qQn b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 Kd7 d4 Na6 d6 Ke6 d7 Kd6 Be2 Nb8 Bd3 Ke6 Bf1 Kd6 d5 Ke5 d6 Kf6 Bh6 Bb7 Bc1 Bd5 exd5 Qe8 Na3 Qc8 Nb1 Qd8 Ke2 Kf5 Kd3 g5 Kc4 Ke4 Kc5 a5 h4 e5 b4 g4 b6 c6 b5 g3 b7 a4 h6 g2 b6 a3 h5 a2 h7 Bg7 h6 Qe7 d8R Nf6 Rh5 Qe6 d7 Ra6 d6 Ne8 Bg5 Qb3 Nf3 g1R Rc8 Rg4 d8B Qb2 d7 Qe2 Nfd2+ Kd3 Nc3 Nf6 Kd6 e4 Ke7 e3 Qc1 Rf8 h8R c5 h7 c4 Bc7 Ra3 d8N Rg8 Ne6 Nbd7 b8N Ne4 b7 Ne5 Nd7 Nf3 b8B Bd4 Nf6 Ng3 Ng7 Nh4 Bb6 Nh1 Bd6 Rd8 Rb8 Rd7+ Kf8 Rda7 Rg8 Rf4 h8N Rg4 Bh3 Qf1 Ng6 e2 Qe1 Rf4 Ne5+ Kc2 Bf5+ Re4 Rd1 a1B Bh7 Bb2 Na2 c3 Rc8 Qg2 Qf1 e1B Qg1 Qh3 Ra1 Qf1 Ndf3 Bd2 Nc4 Bf4 Nfd2 Bg3 Bdc5 Bc7 Bd6 Bd8 Rh8 Kd3 Bg8 c2 Rb8 c1R Ne3 R7a4 Bh7 Bdc3 Bgf4 Rc4 Kg8 Ra7 Rd5+ Bd4 Bg5 Be7 Nb4+ Kc3 Ra6 Ra1 Na2+ Kd3 Bg6 Rb4 Nec4 Kc2 Bh7 Bd8 Kf8 Be7+ Ke8 Kd1 Rf8 Re3 Bg8 Ra3 Ra4 Bd8 Ra6 Bc7 Ke7 Kc2 Rfc8 Bd8+ Ke8 Bbc3 Kf8 Bb2 Ne3+
q2Q2R1/2P1bB1r/3N1Rp1/2B2RB1/2bR1b2/N3rnN1/B4nN1/bKN3nk b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 c4 Kf6 Kc2 Ke5 b4 Ke4 f4 e5 h4 a5 b6 d5 b7 d4 f6 a4 f7 a3 f5 a2 h6 Ra4 b5 Qe7 h5 Qh4 b6 Qf2+ Ne2 Kf3 f6 e4 h7 e3 c6 Qh4 c5 Qh2 c7 Qh4 c6 Qg3 h6 Ra6 Na3 Qg4 Rh4 Be6 c8B Qg5 c7 Qb5 Ng3+ e2 Bg5 Nd7 b8R Bh3 b7 Be7 f8B Ra5 f7 Ne5 Be6 d3+ Kc1 Nc6 Rd4 Qa4 Rc8 Ra8 b8N Nf6 Nd7 Ng4 Nc5 Nf2 Nb3 d2+ Kb2 Bg4 Nc1 Nh3 Bg2+ Kf2 Bgd5 e1B Bb3 Kg1 Rb1 Bb4 Bc5 Be2 f8R Ne5 Rf5 Bc4 Rg8 Nf3 Bf7 a1B+ Kc2 Qa5 Ba2 Re8 Rb2 Re2 Kb1 Qa8 Rb3 Kh2 Re3 Kg2 Re6 Re3 Ref6 Bf2 Qa4 d1N Qe8 Bg1 Qd8 Bh2 Rf8 Rg8 h8N Ndf2 h7 Nhg1 Ng6 Rh8 Rg8 Be6 Ba7 Be7 Bc5 Bc4 Nh4+ Kh3 Nf1 g6 Ng2 Bf4 Ng3 Kh2 Rg7 Rg8 h8N Re8 Rg8 Rf8 Be6 Rf7 Bd5 Rh7 Nf7 Re6 Nd6 Re3 Nge2 Kh1 Be6 Nfh3 Bf7 Nf2 Ng3+
n3N1qk/rr2R1q1/1bR3B1/2R1Q1QQ/QNQ2r1P/4nRpb/5Qr1/6BK b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 h4 e5 f4 g5 Kf2 Kg7 Kg2 a5 d4 c5 d6 g4 b6 a4 d5 e4 h6+ Kh7 b5 a3 f6 e3 d7 c4 f7 g3 d6 a2 b7 c3 b6 e2 f5 e1Q f6 c2 Nh3 Qe6 Ng5+ Kg6 h7 Qc4 Nc3 Nh6 Nge4 Be7 f8R Qcc7 f7 Kg7 Nf6 Rg8 h8Q+ Kg6 Ne8 Ra3 Nd5 Rd3 Nb4 Bf6 Be3 c1R Bg1 Bg7 Qa4 Qf6 d8Q Ra3 d7 Qg5 Bd3+ Nf5 Bc2 Qe5 Qc7 Rb1 d8Q Na6 Qc4 Nc7 b8Q Na8 b7 Qc7 Qba7 Bd4 b8Q Bb6 Qdd5 Rbb3 Re1 a1R Re7 R1a2 Qda5 Qd8 Qbe5 Qg4 Qhf6+ Kh7 Qg5 Rg6 Rg8 Rf6 Rg6 Kh8 Rh2 Be6 Kh1 Ne3 Bd3 Qgd4 Rc2 Bh3 Be4 Q8d5 f8R+ Qg8 Rc3 Rg2 Rff7 Qd7 Rh6+ Qh7 Bg6 Qe6 Rf8+ Qg8 Qh5 Rb1 Qeg5 Rff2 Rf3 Rbb2 Qae5+ Qg7 Qc2 Ra5 Qd7 Ra7 Qda4 Rb1 Rf5 Rf4 Qf2 Rd1 Rf6 Rdd7 Rc6 Rdb7 Rc5 Nf1 Rf3 Ne3 Be4 Nd5 Rf6 Ne3 Bg6 Qg8 Rfc6+ Qg7 Qhg4 Qg8 Q4h5+
1rbQ2N1/6B1/4Rq1R/Q2n2p1/1nbRKb2/NNRRP2k/N1qR3r/5b1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 c4 Kf5 h4 Kg4 b4 g5 h6 f5 b6 a5 e6 d5 h7 a4 c6 a3 c5 a2 b7 Na6 b8Q Nf6 b5 Rg8 h8R Bd6 c7 Qe8 c6 Qf8 e7 Ne8 b6 Nf6 e8R Nd7 b7 Nb4 h5 Ra5 h6 Qf7 h7 Nf6 Bb2 Qg7 Qd2 Qh6 Rh3 Bd7 c8N Rf8 c7 Nh5 Bg2 Rb5 Re6 Be7 Bg7 Nc6 Na3 Rb2 Rd1 a1Q Rg8 Rd8 h8R Nf6 Bh1 Qg6 Qa5 Bd6 Rd2 Nb4 Ne7 Bc8 Nf3 f4+ Kd4 Qf1 e3 Qc2 R3h4+ Kg3 Qba8 Ra2 b8N Qf2 Na6 Rb2 Ne5 f3 Nd7 Bf4 Ndc5 Qf1 R8h7 f2 Nb3 Qa1 R7h6 f1B Rg6 Re8 Rg4+ Kh3 Rf8 Bc4 Ng8 Qf1 Rf7 Rd8 Rd7 Qf3 Kc5 d4 Rd5 d3 Kd4 Qf2 Rdd6 Nfd5 Ke4 Bh2 Qb8 Qf6 Qbb6 Bf4 Qd4 Bb7 c8R Ra2 Rcc6 Rb8 Qdb6 Bc8 Qd8 Bb5 Rc3 Bc4 Nac5 Rb2 Nc1 Ra2 Rd7 Rb2 N5b3 Ra2 Re2 Rb2 Na2 d2+ Rd3 d1B Rd2 Be2 Rc7 Bb5 Rc3 Bc4 Rg2 Bf1 Rd1 Qb1 Rgd2 Rc2 Rd4 Qc1 R2d3 Rh2 R1d2 Qc2 Rh6+
3NQ3/1QQKR1r1/r2Q4/nk3p2/1b2Q2B/q1qr1nP1/B4R1R/Nbr1R1Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 a5 Kf5 h5 b4 c4 d4 c3 e4 f6 g3 a4 e6+ Kd6 e5+ Kc7 g6 Kb6 g7 a3 d6 c2 d7 a2 e7 h4 Ke6 h3 e8Q h2 d5 f5 d6 Be7 Bg5 c1R Bh4 Nf6 g8Q Qc7 Qgg4 Ra4 Nf3 Ba6 d8Q Nc6 d7 Rg8 Nbd2 Ra5 Ng5 Ra3 Bc4 Ra5 Qg1+ Bc5 Qe4 Nh5 Nb3 Rf1 Nf7 Nb8 Re1 Be3 Na1 Bf2 Ke7 Ng7 e6 Ra3 Qc8 Rd3 Nd8 Bb7 Bb3 Qc3 Qc7+ Ka7 b6+ Ka6 Qd6 Bc5 b5+ Ka5 Bc4 Bb4 Bd5 Ba6 b7 Rff3 b6 Kb5 Nf7 Rf1 d8R+ Nc6+ Kd7 Na5 e7 Ne6 b8Q Rg7 b7 Nd4 Qbc7 Nf3 b8Q+ Bb7 Qa8 Rf2 Rb8 Rc2 Be6 Rc1 Nd8 Qa3 Bg8 Rc6 Qaa7 Ra6 Ra8 Bd5 Bf7 Bb3 Be6 Bc2 Qab7+ Rb6 Ra7 Bb1 Re2 Qc3 Rf2 Qa3 Nc2 a1Q Ba2 Q1c3 Na1 Rg6 Qh8 Rg4 e8R Rg8 Re7 Rg7 Qe8 Qcb2 Qg2 Qbc3 Re1 h1R Qh2 Nc6 Ra4 Rf1 Qg1 Na5 Ree2 Rc1 Re1 Bc5 Rd4 Bb4 Rc4 Qe5 Rcc2 Qec3 Qa8 Ra6 Rh2 Qe5 Rcf2 Qec3 Qab7+
2B1k1b1/2R1R3/2pqNnB1/1rRBRB1q/nbK2n2/3BQ1rn/2N3P1/4B1Q1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 e4 f5 Ke2 b5 Kd3 h5 a4 h4 a6 b4 a5 b3 a7 f4 e6 f3 e7 h3 g6 b2 g7 h2 d6 f2 a6 Nf6 g8B Nbd7 e5 Nh5 Bd5 Nb8 Nf3 Bg7 Kc4 Bb7 d4 Qc8 Ng5 Qd8 Na3 b1N Ne6 Rh7 d7+ Kf7 e8R Bf6 Bd3 f1Q Bd2 Qf5 Nc2 Nc6 Rf1 h1N Ra5 Qg5 Be1 Qg7 Rc5 Rc8 a8B Qg4 a7 Qe7 d8R Nf2 Rd7 Qf3 B5e4 Nb8 d5 Bc6 d6 Rg7 Bb7 Rg3 a8B Nh3 Bf5 Nc3 Ba6 Ba4 Bd5 c6 Rc7 N5f4 d7 Qh5 d8Q Nd7 Qb1 Rb8 Bc8 Bh8 Rf2 Qf8 Qg5 Rb5 Qd1 Qd6 Qa1 Ng6 Qe3 Ngf4 Qac1 Bg7 Rf3 Bf6 Qg1 Be7 Qce3 Bf8 Rf2 Kg8 Re7 Nf6 Rf7 Be7 Re2 Bf8 Nd8 Be7 e6 Bf8 e7 Bb3+ Kd4 Bc4 e8B Na4 Ne6 Bb3 Qef2 Bc4 Re5 Bb3 Qe3 Ba2 Rh7 Be7 Beg6 Bb3 Nd8+ Kf8 Rf7+ Ke8 Ne6 Qd7 Rc4 Bb4 Rc5 Qd6 Ng5+ Qe7 Bf3 Rb7 Rh7+ Bf7 Ne6 Qf8 Kc4 Qd6 Bd5 Rb5 Ng5+ Kd8 Rg7 Bg8 Rgf7 Bh7 Ne6+ Ke8 Be2 Bg8 Bf1 Qd1 B1d3 Qh5 Rfe7#
RRrR1qNK/b3B3/1p3R2/1nqNn1P1/k4q2/1b1R3B/1qQ2Br1/Q3R2B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 c5 Kf4 h5 Ke5 e6 g4 b6 a4 c4 f4 h4 d4 h3 a6 h2 d6 Kc6 d5+ Kc5 a5 Kb5 g6 Qc7 f6 Qd8 f5 Rh6 f7 Qc7 a7 Rh3 f6 Ra3 g7 Ra4 g5 Ne7 g8R Qc6 d7 Ba6 d8R Nf5 d6 Ra2 d7 Bc8 a6 Nh4 Bh3 c3 Qc2 Nf5 Nf3 Nd4 Re1 h1Q Be3 Qf1 Nh4 Qfg2 Ng6 Qc5+ Kf4 Ka5 Ne7 Nb5 Bf2 e5+ Kf5 e4+ Kg6 e3 Kh7 e2 Kh8 Nc6 Rg6 Bb7 Ng8 Rc8 a8Q Bd6 f8R Bb8 f7 Ba7 Rf6 Ne5 Rfe8 Be4 f8B Bd5 Be7 Bb3 Ref8 Ka4 Rfe8 Bb8 a7 Qg4 Qh1 Qf4 a8B Ba7 Qg1 Qfc4 Bh1 Qf4 Qg6 c2 Nc3+ Ka3 Qf1 c1Q Nd5 Qb2 Qc2 Ka4 Rad1 Qba3 Rd3 Qb2 Red1 e1Q Ref8 Qee3 Re1 Qee4 Rde8 Qef5 d8R Rc7 Ra8 Rc6 Reb8 Rc8 Rg6 Qf7 Rd8 Qf8 Rf6 Ra1 Qfe2 Rd1 Qf3 Rd2 Qfd1 Re2 Bh4 Rh2 Bf2 Rg2 Qa1+
1RNrBk1R/4np1n/7B/5Bb1/rq3P1N/NRB1q2Q/q4qbK/N1RB4 b - - 0 1 illegal: No possible last move
r3n1q1/1R1q3n/N1QB1kNp/7P/3NBn1N/3NRQ1r/B1q1bK2/1B2n1N1 b - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 cxd5 Be7 g3 Bg5 fxe5 f4 Qb3 f3 Qd1 Bf4 gxf4 Ba6 Nh3 Bb7 Ng1 Bc8 Nh3 Kf7 e4 c5 b4 g5 d4 a5 b6 c4 b5 g4 b7 c3 e6+ Kf6 e5+ Kg6 d6 g3 e7 a4 e8B+ Kf5 b6 c2 d7 h6 e6 g2 e7 g1N d5 a3 d6 a2 Ba3 c1N Bf7 Ra5 e8B Nc6 b8N Nce2 b7 Rb5 Bg2 Qf6 d8Q Qg6 d7 Qg7 Qf6+ Kg4 d8N Nc3 f5 Nce2 Ne6 Rb3 Nc5 Ng3 Nba6 Nd8 b8N Ne4 Nc6 Ne2 Nd4 Nf2 Qc6 Nf4 f6 Nb7 Nd2 Nd6 Rb1 a1Q Bd5 Qb2 Bg6 Be6 f7 Nf6 f8N Qd7 Bb4 Rd3 Ba2 Bc4 Rf1 Rc3 Ng1 Nh7 h4 Bb5 h5 Kg5 Qe2 Kf6 Bc2 Qb3 Ng6 Qbe6 Rb2 Ra8 Bcb1 Ne8 Ba3 Bc4 Rb7 Bb5 Na4 Bc4 Bd6 Qg8 Nb2 Ra3 N2b3 Bd3 Nf5 Bb5 Nbd4 N2d3+ Kd2 f2 Ke3 Bc4 Re1 f1Q Be4 Qg2 Nfh4 Rb3 Qg4 Qc2 Re2 Ne1+ Kf2 Rh3 Qf3 Qc3 Re3 Be2 Nd3 Qcc4 Nge5 Qc2 Neg6
1BB5/1N4N1/6b1/kr2NB1R/1R1Bn1B1/1RRp3r/3P1n1r/nQb1NbKn b - - 0 1 legal: proof: h4 g5 hxg5 f5 b4 b5 e4 c6 exf5 Bb7 c4 Bh6 a4 Kf8 a5 Qb6 a6 Bg7 cxb5 Be5 Rh6 Ke8 Rh5 Qc7 b6 Bc8 b5 Qb7 axb7 Bg7 Rh1 Bf8 g4 Kd8 f4 d5 Kf2 h5 g6 a5 f6 e5 g7 a4 g5 h4 g6 a3 f5 c5 f7 d4 f6 c4 Nc3 a2 Bd3 h3 Ne4 h2 Bb2 c3 Nc5 e4 Qb1 c2 Nf3 c1R Ne1 Nd7 b8B Nh6 g8B Rc3 g7 Ra5 b7 Nf5 b6 e3+ Kg2 Ng3 Bf5 Bd6 f8N e2 f7 Rb5 Ng6 Nf6 f8N Nfe4 Ne5 Bd7 Bd5 Be8 g8B Bg6 Bde6 Rh5 Bc8 Rh3 Ncd7 Ba3 Nc5 Rc4 Bc3 Bc1 Bge6 Ra4 Bg4 Raa5 Bef5 Ra8 Rf1 h1B+ Kg1 Bg2 Rf3 Nh1 Rd3 Bf1 Nfe6+ Ke7 Ng7 Kd8 Bb2 Rh2 Rc3 Ra3 Bd6 Rab3 b8R Ra3 b7 Rab3 Bf8 Kc7 Bd6+ Kb6 Rh3 Nef2 Rh5 Rbh3 Bc3 d3 Bd4 Rh4 Ra8 R4h3 Ra3 Ng3 Bb8 Ngh1 Rb3 Ka5 Nc2 e1N Rc3 Ng2 Ne1 Nf4 Qc2 Rb2 Rb1 Rb5 Rbb3 a1N Qb1 Ne6 Bc7+ Rb6 b8R Ng5 Rb7 Nge4 Bb8 Rd6 R7b4 Rb6 Rc2 Rb7 Rcc3 Rb5 Nb7+
n1n5/1b3B2/2NrQqRP/1B2B3/7N/BNB1p1b1/K1p1QRr1/Nn1kb2B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kf7 Kd2 Kf6 Kc3 b5 Kb3 c5 f4 e5 h4 g5 a4 g4 h6 g3 h5 b4 h7 e4 a6 g2 a7 e3 a5 c4+ Ka2 c3 d6 c2 d5 Ba6 d7 Ne7 h6 Bd3 a6 Qc7 d8N Bg7 d6 Nbc6 d7 Qb6 Ba3 Ne5 Rh2 N5c6 Nf3 g1B Nbd2 Qc5 Qe2 Ng6 Nd4 Bb5 Rf2 Bc4+ N4b3 Rg8 h8B Rb8 a8B Nce7 a7 Be6 Bh1 Bd5 a8B Qd4 Nc6 Rb6 d8B Ne5 Bc7 Nc4 Rc1 Nc8 Na1 Bg2 Ndb3 Bh2 Rb1 Bg3 Be5+ Kf7 f6 Kg6 f5+ Kg5 f7 Bf6 Qe1 Kg4 f8Q Bfh4 f6 Qf4 f7 Qf6 Qc5 Ra6 f8N N4b6 Bb7 Na8 Ng6 Bf3 Qb6 Be4 Rg2 Kf3 Bb5 Bd5 Qd2 Be1 Qd3 Bhg3 Rg1+ Kf2 Nh4 Rg7 Qc4 Bf3 Rd1 Bd5 Rd3 Ke2 Rf1 Rg8 Rc3+ Kd1 Rf2 Rg6 Qf1 Rg8 Rc4 Bg2 Rg4 Bf3 Rg6 Bg2 Na7 Bd5 Qe6 Rd6 B7c6 Bf3 Be8 Bb7 Bf7 Rg7 Nc6 Rg8 Nc5 b3+ Kb2 Qf4 Bc3 Qf5 Bhe5 Qf6 Bab4 Rg7 Ka3 b2 Ka2 b1N Ba3 Rg8 Ncb3 Rgd8 Qeh3 Rd2 Qe6 R8d6 Rf5 Rh2 Rf2 Rg2 Qe2#
2N2bb1/2Nn1N2/2N1p2N/2r5/1bPQ2K1/k1RR1BNR/rnpR4/Br2Q2q b - - 0 1 illegal: No possible last move, all moves rejected
1Nb2rk1/1R1R1Nrn/NP6/7N/4nK2/R1B1R1p1/1b2pn2/BNBr1qQB b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 a5 b4 g5 f4 c5 d4 e5 h4 g4 d6 e4 b6 c4 d5 a4 f6 a3 h6 c3 h7 c2 h5 a2 h6 g3 b7 Ne7 f5 Qa5 d7 Ng8 d8R Qa6 d6 Nd7 b8N Nb6 b5 Nd7 b6 Qe2+ Kf4 e3 Nh3 Ne5 d7 Be7 Na6 Bf8 Bg2 Ng4 Re1 Nf2 Bh1 Qd3 Re2 Qd2 Qg1 Bb7 Rb8 Bd5 d8R Ne4 Rd7+ Be7 Rbb7 Qd1 Ng5+ Kf8 f7 Ngf6 Nh3 Rg8 h8B Qe1 h7 Be6 Ng5 Ba3 Nh3 Ng4 Bc3 Bb2 h8N Qd1 Re1 Ngf6 Re2 Rg5 Re1 Kg7 f8N+ Kg8 Nf7 Nh7 f6 Qd3 Ng6 Qe2 Nge5 Rg7 Nc6 Rf8 Ncb8 Qg2 Rf1 e2 Rf3 Bg4 Re3 Qf1+ Ke5 Nf2 Nf4 Ne4 Nh5 Be6 Re7 Bc8 Red7 Qd1 Bd2 c1N Kf4 Nb3 Bc1 Nf2 Ne5 Nc5 f7+ Kh8 Nbc6 Qf1 Ncb8 Rfg8 f8B Nce4 Be7 Rf8+ Bf6 Kg8 Nf7 Rd8 Be1 Re8 Na3 Bc3 Bb2 Rf8 Bd2 Bb4 Bfc3 Be7 Rc1 a1R Rc2 Rc1 Nb1 Re1 Bdc1 Rd1 Ba1 Ba3 Ra2 Bb2 Ra3
2RnR1Rr/2nb2NN/pNB4k/R1N5/q2Bpb2/r4B1P/5KB1/Qr1R3b b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 f4 d5 b4 g5 h3 Kg7 h6+ Kh7 f6 e5 f5 d4 b6 g4 b5 g3 f7 g2 c6 e4 c5 a6 f6 d3 b7 d2+ Kf2 Bd7 c7 Kg6 c8B Be7 f8N+ Kg5 h7 Bc6 f7 Qd5 b6 Ra7 Bg4 Qa2 Nd7 Qa5 f8N Ra8 Nf3+ Kh6 Nh4 g1R Bf3 Qa3 Nc3 Kg7 Nf5+ Kf7 Nd5 Qb2 Ra5 Qb4 Ng7 Rg6 B1g2 Bg5 Bb2 Qa4 Qa1 d1B Bd4 Bb5 c6 Nf6 c7 Nc6 b8R Nd8 c8B Ne8 b7 Nc7 N5b6 Bf4 Nc5 Rg3 Bd7 Bde2 Rc8 Rb8 Rd1 Bf1 Nfe6 Kg6 Bc6 Kh6 Ng5 Bfe2 Bd5 Bd7 Bc6 Ra8 b8R Ra7 Bg4 Ra3 B4f3 Rb7 Ra8 Nde6 Re8 Nd8 Rc8 Rb8 Nd5 Rb1 Nb6 Rg8 Bg4 Bf3 h8R+ Kg6 Nh7 Kh6 Bf1 Bg2 Bf3 Rf8 Rg8 Bh1 Nh5 Nce6 B1g2 Nc7 Rg4 Rh8 Rgg8 Bc1 Ng7 Bd2 Bc3 Bf4 Bd4
1rqQBQQ1/1n2RNQ1/pN2r2p/P1k4b/Q2Br3/8/Q1b1BnR1/KbB5 b - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Bh6 dxe5 Bg5 hxg5 Ke7 Bf4 Kf8 Bc1 Ke8 Kd2 Ke7 Kc3 b5 Kb2 d5 f4 a6 e4 b4 c4 b3 a4 d4 f6+ Kd7 e6+ Kc6 e7 h6 e8Q+ Nd7 a5 g3 f5 g2 f7 d3 f8Q d2 g6 Ra7 e5 Bb7 e6 Qb6 g7 Rh7 e7 Rh8 f6 Qb5 f7 Qa4 Ra2 Bc8 Be2 Qb5 Qd8 Qb8 e8B Qg3 Nh3 g1R Ka1 Rh7 Nc3 Nf6 g8Q Qb8 Ng5 Qe5 Qgg7 Qf5 Na4 Rg2 Nb6 Rg4 Re1 Ra8 Qfg8 Rb8 f8B Rf4 Nf7 Ng4 Be7 Rh8 Bf6 Re4 Bd4 Nf2 Qc2 d1B Qh4 Kc7 c6 Nc5 Q8f8 Nb7 c5 Qh3 Qb1 Be6 Rc2 Bg4 Qa2 Bh5 Qfg8 Rd8 Rd2 Rd6 Rb2 Kb8 c7+ Ka7 c8Q Bc2 c6 Rde6 Qd7 Kb8 Qd5 Kc7 Qb5 Qf5 Qba4 Qc5 Nd8+ Kd6 c7 Qc6 c8Q Qc7 Be5+ Kc5 Nf7 Qc6 Qhd8 Qc7 Rd1 Qc6 Rd7 Qc7 Qa8 Qc8 Re7 Bd1 Rd2 Bc2 Q8f8 Rg8 Rd1 Rh8 Rg1 Rg8 Rg2 Rh8 Qb1 b2+ Ka2 Qd7 Qc7+ Rc6 Qfg8 Bd1 Q8h7 Qd8 Bd7 Re8 Qhg8 Qb8 Qa1 b1B+ Kb2 Ng4 Q1a2 Nf2 Ka1 Bdc2 Qc8 Qc7 Qcb8 Re6 Beb2 Rd8 Bdb5 Rdd6 Qbf8 Rd8 Be8 Qc6 Qc8 Qc7 Qcd7 Rb8 Qd8 Qc8 Bd4+
n1B3R1/1Q3rbR/p1P2pRn/8/3KBR1n/3b3q/B4NNr/1BBkbQ1B b - - 0 1 illegal: No proof kernel
1B1bn1N1/1q5p/nb3RkP/1NBRQN2/KRnN4/B4p2/r3B1b1/1N2R1r1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 exd5 c3 bxc3 Bh6 c4 Bg7 c5 Bf8 c4 f5 g4 Kf7 d4 e5 Kd2 a5 Kc2 f4 Kb3 f3 h4 e4 c6 e3 c7 e2 h5 e1B g6+ Kg7 h6+ Kf6 c5 Qe8 b6 Bd2 c6 Be1 d6 Bb7 c8R Bc3 d7 Ba3 d8R Na6 c7 Qe4 g7 Bcb2 g5+ Kf7 d5 Qe2 d6 Qh2 d7 Rb8 g6+ Kf6 Qd5 Be5 Ne2 Bb4 Ba3 Ra8 Ka4 Bd4 Rb8 Be7 c8N Qc7 Nd6 Bc8 b7 Bb6 Nd4 Ra7 Qe6+ Kg5 Be2 Nf6 g8N Ne8 g7 Bf6 Qb3 Kg6 N6b5 Bh4 Qc3 Ra8 Nf6 Rg8 Ne4 Qc6 Bc5 Bf6 Re1 Ra7 Ka3 a4 Ng3 Bg5 Ngf5 Ra8 Kb2 a3+ Kb3 a2 Ka4 Bh4 Qe3 Qc7 Qe5 Bg5 Nd2 Bf6 Rab1 a1N Rb4 Nb3 Nb1 Ra7 Ra8 Nd2 b8B Qb7 Ne3 Nd6 Nef5 N2c4 Rf8 Bh4 d8B Ne8 Bde7 Bf6 Rf7 Be6 Bf8 Bc8 Rd7 Bfd8 Rd5 Bd7 Ne3 Bh3 Nef5 Bg2 Bfe7 Rf8 g8N Rf7 Bg5 Rd7 Bc1 Rg7 Ba3 Nac7+ Kb3 Bh3 Nh4+ Kf7 Nf6 Rg1 Bb2 Ba5 Ng8 Bg2 Nhf5 Kg6 Bc1 Bb6 Bb2 Ra2 Ba3 Ba5 Ka4 Qc8 Ra7 Na6 Rb7 Bab6 Rf7 Qb7 Rf6+
1bqR3R/rR1B1Kp1/1rn3QR/2b3N1/n1B3N1/p2N1B2/5r1P/2B1NbkN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 a5 Ke4 c5 b4 c4 d4 f6 d6+ Ke6 b6 a4 b5 c3 d7 c2 b7 Rh7 h6 Rh8 b6 Qe7 d8N+ Kd7 Kd5 f5 e4 f4 e6+ Ke8 e5 f3 h7 f2 Qg4 Na6 b8N Qh4 b7 Ke7 Nh3 Qf6 Bc4 f1R Qg6 Rf4 Nf2 Qf5 Nf7 Qg5 Nd2 Qg2+ Nf3 Rf5 Ng5 Qg4 Nd7 Rb8 Nf6 Qf4 N6g4 Nc5 Ne1 Ra8 b8N Bd7 Na6 Ra7 Nb4 Bb5 Nbd3 a3 Rf1 Ba6 Nh1 Na4 Rb1 Rf6 Rf3 Qf5 Rh3 Bb5 Rh6 Ba6 Be3 c1B Bf4 Bb2 Bc1 Bc3 Rb5 Bb4 Rb8 Bd6 Rb5 Bb8 Rb7+ Kd8 e7+ Kc8 e8B Rb6 Bd2 Bc5 Bc1 Qf8 Bc6 Ne7+ Ke6 Qe8 d5 Rf8 h8R Rf2 d6 Qd8 B6d5 Nc6 Rf7 Qf8 d7+ Kc7 Re7 Qc8 Bf3 Bb5 Kf7 Ba6 e6 Kd6 Nde5 Bb5 Bd5 Bf1 Bc4 Bd4 d8R+ Kc5 Rb7 Be3 Rdf8 Kd4 e7 Bd2 e8B Bb4 N5d3 B4d6 Nf6 Bc5 Bb2+ Ke3 Bd7 Bg2 Rd8 Bh3 Be4 Ke2 Bc1 Kf1 Bg2+ Kg1 Bf3 Bf1 Ng4
1nr4R/KBp2rNb/N1b3P1/4b3/2R3R1/1RqNBpQ1/1NrkN1n1/N4Q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 f5 Ke2 h5 Kd3 a5 Kc4 h4 d4 h3 g4 f4 b6 h2 Kb5 f3 d6+ Ke6 d7 a4 b7 a3 d5+ Kf7 g6+ Ke7 g5 a2 d6+ Ke6 g7 Rh7 Nd2 Qf6 d8Q Nh6 g8R Qe7 d7 Nc6 b8N Ra6 Nb3 Rf7 Be3 Rf6 Ne2 Qe8 Rc1 a1R Rc4 R1a3 Na1 R6a4 Na6 Qh5 g6 Rd3 Rh8 Nf7 Rg1 h1B Rg4 Rf4 Qh4 Bg7 Qg3 Nh6 d8N+ Kd7 Qb1 Nf5 e6+ Kd6 e5+ Kd5 e7 Rc3 e8N Bg2 e6 Nh4 e7 Bd7 Nf7 Bh3 Ned6 Qe5 e8N Rc2 Qbe1 Qc3 Ne5 Bf6 Nd3 Ng2 Ng7 Be5 Qef2 Ra3 Qg1 Rb3 Q1f2 Nb8+ Ka5 Qd4 b5 Bc6 b6 Rf7 b7 Rb4 Qe1 Qc3 Qb1 Nd7 b8R Rb3+ Rbb4 Nb8 Rge4 Be6 Rg4 Ne1 Bh3 Ng2 Qf1 Rb1 Nb7 Rd1 Nb2 Rd4 Nbc5 Rdf4 Ncb3 Rf8 Nbc1 Rc8 Ncd3 Bg8 Bf2 Bh7 Be3 Qd4 Rb3 Ke4 Rg5 Rf7 Bg4 Rcf8 Bc8 Rd8 Bb7 Rg8 Bf4 Rc8 Rg4 Bf6 Bd6+ Ke3 Bc5 Be5 Nab4 Nd7 Ka6 Nb8+ Ka7 Kd2 Na6 Qc3 Be3+
N2q1N1q/6r1/3QN1p1/n2B4/pNP1qBRR/3N3Q/N2b1BB1/nbr2k1K b - - 0 1 illegal: No possible last move, all moves rejected
2q5/k5bQ/qQ2BP2/Bbn1NQp1/2RpR2R/KQ2n1rq/NRr2RR1/8 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 e5 Kb4 d5 c4 Kd7 h4 Kc7 f4 Kb7 b6 a5+ Ka3 e4 b4 d4 f6 e3 b5 e2 h6 e1Q h5 a4 h7 Qde7 f7 Qh4 f5 Qc7 h6 Bg7 f8R Qf2 Nc3 Qe3 Qb3 Qe2 Bh3 Qg4 Nf3 Bd7 Ne5 Ra5 c6+ Ka8 c5 Be6 b7+ Ka7 b6+ Ka6 Re1 Qe7 c7 Bd5 c8Q Bg2 Re4 Qh4 Na2 Qg4 Bd2 Bf3 Rg1 Qc7 c6 Qh5 Rg2 Rc5 Ba5 Nd7 b8R+ Qb7 c7 Be2 Rf7 Ne7 Qf8 Qa8 c8R Bb5 b7 Rc2 Rc4 Nc5 Qc8 Rf8 h8Q Ka7 h7 Nd5 Qg8 Re8 h8R Ne3 Rf8 Qg4 Rh4 Qf3 Bg4 Qh3 Qh7 Re6 f6 Rc6 Qcf5 Ra6 Rbe8 Qc8 Rf4 Re6 Rff2 Re7 Nf3 Re4 Ne5 Rf4 Re6 Rf3 Rb6 Rg3 Re8 Bc6 Qbd3 Bd7 Rb2 Bc6 Qb3 Bb5 Kb4 a3 b8Q+ Ka6 Qd6+ Ka7 Qb6+ Ka8 Nc3 a2 Ka3 a1Q+ Na2 Qf1 Ng6 Qd3 Re4 Qe2 Ne5 Qd3 Qc6+ Ka7 Qf3 Qa8 Ra4 Ba6 Be6 Qc8 Qff5 Qb5 Rc4 Qbb7 Rhg4 Bb5 Rh4 Qa6 Qb6+
1N1N2N1/RRrbnBkp/8/B1Qr1B1K/q1qb2Pp/B3B3/5NR1/1qR1n3 b - - 0 1 illegal: Other
R1NnrR2/2b1RrpR/2BR1q2/nbB2NqP/1pQ4B/k3N3/6q1/2B1K2N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kd7 d4 Kd6 f4 e5 h4 b5 a6 c5 h6 b4 a5 c4 h7 c3 f6 c2 f5 e4 f7 e3 f6 e2 a7 Nd7 a6 Qa5 Nd2 Ne5 Nc4+ Kd7 d6 Kc6 d7 Kb5 d8B Be6 d5 Ng6 d6 Qa2 d7 Ka4 Qd3 Bg4 Ne3 Bc5 f8B Bd4 f7 Bf6 Nh3 Bf3 Bc5 Rb8 a8R Nh6 f8R Be7 a7 Rb7 Bg2 Be4 Qc4 Rc7 Bd2 Ne5 Nf2 Bd3 Bc6+ Ka3 h5 Rb7 Rd1 Bd6 Bh4 c1Q d8N Bc7 Ne6 Nhf7 Nd4 Nd8 Ndf5 Rg8 h8R Qca1 Qf7 Nc4 Rh7 Na5 Qc4 Qf6 Rf1 Qg5 Nh1 Qa1 Rf4 Qaf6 Re4 Qg2 Re7 Qgg5 Rff7 Re8 Rf8 Qg2 Rb8 Qgg5 a8N Ra7 Nb6 Qg2 Qe6 Bb5 Qc4 Rb7 Ra8 Qgg5 Kf2 Ra7 Nc8 e1Q+ Kf3 Qeg1 Ke2 Q1g2+ Ke1 Bd6 Bc3 Bb8 Rd6 Rd7 Bd2 Bc7 Ree6 Rf7 Re4 Qd4 Re7 Qdf6 Bc1+
Qn2nqQR/KQ2b1pN/3BQ3/p2QnrRq/2rNBQ2/4Pb1B/1k6/5B2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Ke3 Ke6 Kd4 d5 h4 f5 c4 a5 b4 f4 b6 f3 e3 f2 b7 Nd7 b8Q Qb6 b5 Ngf6 h6 Nh7 h5 Bb7 Ba3 Qc6 b6 Qb5 c6 Qb3 c5 Bd6 c7 Ra6 c8B Bc6 b7 Bb5 c6 Bd3 c7 Bc2 Nd2 Be7 Ndf3 Ng5 h7 Bb4 h6 Bd2 Nh3 Be4 Bd6 Rf8 h8Q Rc6 h7 Qb5 Qg8+ Nf7 h8Q Bb4 Nhg5+ Kf5 e6 Nfe5 Qa8 Nb8 Qh2 Rf7 Nh7 Rf6 Ng1 Bf3 Ne2 Rc5 Qg2 Qe8 Bd7 Qf8 c8B Rf7 Bc6 Rc3 Bc7 Be7 Bd6 Rc2 Ra4 Rc3 Rc4 Rc2 Kc5 d4 Kb6 d3 Rg1 d2 Rh4 Rc4 Ka7 Rf6 Qa4 d1Q Rh6 Qd5 Nd4+ Ke4 Qh1 Rf5 Rg5 Ned7 Rh3 Nf6 Qa2 Ne8 Qh2 Be2 Qf4+ Kd3 Rhh5 Qb5 Be4+ Kc3 Rh4 Bf3 Bd7 Na6 b8Q Qe5 Qbb7 Nb8 Qab1 Qd5 Q1b5 Qe5 Q5c6 Qb5 Qd5 Kb2 Bfd3 f1N Rh1 Nh2 Bf1 Bd8 e7 Ng4 Be6 Ne5 Rh6 Nf6 e8Q Be7 Qec6 Ne8 Qcc8 Rf7 Beh3 Rf5 Qce6 Qb4 Qbc8 Qe1 Qcc6 Qh4 Qa6 Qh5 Q6b7+ Ka2 Nf6 Ka1 Rh8 Ka2 Nh7 Ka1 Qc7 Kb2 Qcb7+
n2Rr1kq/Q1Np4/3rq3/4Nn2/b1N2b2/P1pRBR2/B1r4N/NK1QN1R1 b - - 0 1 illegal: No proof kernel
1NBR4/q1P3nr/R2N1bbN/N1b2Q2/5N1k/1Rp1pK2/BB5r/q1B2nR1 b - - 0 1 illegal: No proof kernel
3Qr2B/RBP5/1NKNq3/rn2BnB1/R1B2b2/1p1b1k2/4N1bp/B1NQ3q b - - 0 1 illegal: No proof kernel
3RN3/1bpQ1p1b/q3R1B1/1q2BR1Q/1k4N1/3Rn1RP/rQ2KbRn/1Q3r2 b - - 0 1 illegal: No possible last move, all moves rejected
2r1R1BK/B1pPn2R/N3qQ2/2R1b3/1p1N1Rn1/2rb2q1/3k1B1Q/3BRR1r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 b5 d4+ Kh4 a4 g5 f4 e6 h6 g4 d6 g3 h7 g2 a6 b4 d7 Bh6 d5 Nf6 a5 Bg5 d6 Rf8 h8Q+ Nh7 a7 Qe7 d8R Re8 a6 Rg8 d7 Qf8 f6 Rg7 f7 Bh6 f5 Nf6 Qd4+ Rg4 Re8 Ng8 f6 Rf4 Bc4 Kg5 h4+ Kg4 h5 Qe7 f8B Qd8 f7 Qe7 Be3 Qd8 Nf3 g1R Bc5 Rf1 f8R Bb7 Nc3 Ne7 Ne4 Ng8 Bf2 Qh4 Re1 Bg5 h6 Ne7 h7 Qg3 Qa1 Bc6 Nd4 Bb5 Bb6 Bh4 Nc5 Rf3+ Rf4+ Kg5 Bb3 Rc3 Bd1 Bd3 Qa2 Rg1 Qf8 Rf1 h8R Rg1 Rh7 Rf1 Rh2 Rh1 Rg2 Bb5 Rgg1 Nbc6+ Ke4 e5 Rgf1 Rc8 a8R Bc4 a7 Bb5 Na6 Be2 Rf3 Kg4 Rb8 Bf6 a8B Bg7 Qf6 Bd3+ Ke3 e4 Ba7 Bh8 Rb5 Ne5 Bd5 Bg7 Bg8 Bh8 Nb3 Bg7 Kd4 e3 Rc5 e2 Qh6 Bh8 Rff7 Bf6 Qb2 Kf3 Qh2 Nf5+ Kd5 Ng4 Ke6 Be5 Nd4+ Kf4 Rf6 Ke4 Kf7 Ne7 Nf5 Kf4 Kg7 Kf3 Kh8 Kf4 Rg1 Ke4 Ref1 e1Q Nd4 Qe2 Qa1 Qa2 Qb2 Qe6 Qa1 Bb5 Re1+ Kd3 Rgf1 Bc4 Qg1 Kd2 Qh2 Bd6 Rf4 Be2 Qa5 Bd3 Qb6 Be5+ Rg7 Qc4 Qf6 Qe6 Rh7
N2r2NB/3Q2N1/kB1N1nr1/B4RR1/3n1pn1/BR1Ppn1B/K1b2b2/2qR4 b - - 0 1 illegal: No proof kernel
1b3r2/1B2rRR1/1K2NNp1/Q3NR2/r1bBNn2/nB1r1RR1/P2q3p/4Bk2 b - - 0 1 illegal: No proof kernel
2Nq1B1b/n2R4/BrB2pRr/k5RB/NN1Nb3/1Q3p2/4nnPB/2RnK3 b - - 0 1 illegal: Other
2N1Qr2/5nBK/3BPqQ1/n1p3Q1/1BRB1bbk/2N2pr1/R7/r1r2QBB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 g5 e4 c5 h4 a5 d4 f5 b4 g4 Kf4 a4 Kg5 f4 Kg6 g3 e6 a3 d6+ Ke8 d7+ Ke7 b6 a2 b5 g2 e5 f3 b7 Ra7 d5 Ra3 h6 Nf6 b6 Ne8 h7 Rd3 h5 Na6 b8Q Ra3 h6 Rd3 b7 Rc3 Na3 Qa5 Ne2 g1R+ Bg2 Rc2 Nc3 Rf1 Qd6+ Kd8 b8B Qb6 Be3 Bb7 Nc4 Nec7 Bg1 Qa7 Nb6 Rcf2 Nc8 Qb6 Rh4 Nb4 Bh1 Rb2 Rc4 Bg7 Qe2 Rfb1 Qf1 Rf8 h8B Nc6 h7 Bh6 Bg7 Na5 h8B Nb5 Kh7 Rc1 Qc6 Rg2 Bd6 Qa6 Qb6+ Nc7 Qb1 Rg3 Qg6 Bd2 Rb1 a1R Rb2 Ne8 Ra2 Rg8 Bdf8 Nd6 e7+ Kc7 e8Q Bf4 Be7 Nf7 Bef8 Qf6 d6+ Kc6 Be7 Rf8 e6 Ba8 Nb5 Kd5 d8Q Ke5 d7 Be4 Bd6+ Kd5 Qde7 Bf5 d8B Bg4 Bb6 Qg5 B7d4 Qf5 Bhg7 Qf6 Qh6 Ke4 Nc3+ Kf5 Bbc7 Bh5 Bd8 Kg4 Qg6+ Kh4 B8c7 Nb3 Ba5 Bg4 Bb4 Na5 Qb7 Be5 Qd5 Bf4 Qdg5+
3r4/3NNqr1/1b1p3k/2RQnB2/3pB1n1/1BbP3K/NR2b1N1/B1b1NQ1N b - - 0 1 illegal: Other
5B2/1r3p2/KRBb1k2/BB2nn2/bqBQQp2/NQR5/rP3Q2/rB3rN1 b - - 0 1 illegal: Other
q1R1r3/1Q1pP2B/n2n1RK1/1B6/1BbQ1bNk/2B3NQ/1rp4r/B2Q1rB1 b - - 0 1 illegal: No proof kernel
1rQ5/pnqn4/2n1N1N1/Pp1rb1b1/2B1BBB1/BQ2R1Rn/1BN5/1k2NK2 b - - 0 1 legal: proof: g4 c5 d4 g5 b4 f5 bxc5 e5 dxe5 b6 h3 Bb7 gxf5 g4 Bf4 g3 Bd2 Bf3 Bc1 Bg4 hxg4 Qf6 Qd2 Qe7 Qd1 Qd8 e4 Ke7 f4 d5 a4 h5 c4 b5 f6+ Ke6 a5 d4 f7 d3 g5 h4 c6 g2 g6 h3 f5+ Ke7 e6 Kd6 c5+ Ke5 c7 Kd4 c8B h2 g7 Kc4 f6 Nc6 e5 Rh3 e7 Qd4 e8N Be7 f8B Rg3 f7 Bd8 e6 Nb4 e7 Nh6 g8N Rh3 c6 Qd5 c7 Qc5 Na3+ Kc3 Nf3 g1B Bg4 Rh5 c8Q Rb8 Nc2 Qc7 Ng7 Nf5 e8B Nc6 Bd6 Bg5 f8B Bd4 Rg1 h1N Ne7 Nhg3 Ng6 Be5 Ne6 Ne4 Rg3 Nf6 Bb2+ Kb3 Bf7 Nd7 Bg2 d2+ Kf2 Nfe7 Bda3 Nf5 Bh6 Nd6 Kf1 Nb7 Qb1 d1N Nfe1+ Bc3 Re3 Nf2 Be4 Nh3 Ra2 Bd8 Bf4 Rd5 Qd1 Be7 Ra1 Bg5 Rc1 Ka2 Qf3 Nf6 Rd1 Be5 Rdd3 Nd7 Qd1 Qd6 Rg3 Qc7 Rde3 Ncd8 Qd3 Kb1 Qb3 Nc6 Nd8 Rd3 Bc4 Rd5 Ne6
3Rq1Nr/1RB5/3nB1b1/2BN4/pK4Rn/N1p1N2q/kBPR2Nr/3Qq2r b - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 f4 Bd6 f5 Nc6 f6 Ba3 g6 Ba6 g5 Bc8 axb3 Bf8 b4 Bg7 fxg7 Nb8 b5 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Ke7 Kc3 Ke6 e4 f5 b4 h5 b6 c5 b7 d5 b5 a5 b6 a4 Nh3 c4 Bb2 f4 Na3 f3 Rb1 d4+ Kb4 c3 Nf4+ Ke7 e6 Kd6 e7 f2 e8N+ Ke5 Ng2 h4 Nc7 h3 Rh2 d3 Nd5 Kd4 e5 d2 e6 Rh5 e7 Bf5 e8N Nh6 g8N Nd7 b8B Nf8 b7 Nf7 g7 Bg6 Nde3 Nd6 Nef6 Qe8 Bc4 f1Q Bc7 Rh8 b8B Rh6 Qh5 d1Q Be6 Qde1 Nfd5 Qf5 Qd1+ Qd3 Rh1 h2 Rg1 h1R Ba7+ Ke4 Bc5 R6h2 Rf1 Ke5 Rf7 Qf5 Rd7 Qh3 Nge7 Rc8 g8R Rd8 Rg7 Ke4 Ng8 Ra8 Qd2 Kf3 Qd4 Ke2 Rd8 Rc8 Rgd7 Ra8 Qg4+ Kd2 Qh5 Bd3 Qg4 Ng6 Qh5 Nh4 g6 Bf5 g7 Bh7 Nh6 Bg6 g8R Bf7 Rg4 Bg6 Ng8 Rc8 Ka5 Rb8 Ba1 Rc8 Rb7 Kc1 Kb4 Ra8 Nb5 Kb1 Bb2 Ka2 Na3 Bd3 Rf7 Be4 Rf2 Bg6 Rd2 Rc8 B7b6 Rc7 Ba5 Rh7 Bc7 Rh8 Qe5 Qd1 Qd4 Qe1 Qd3 Qf1 Qe2 Qe1 Qd1
2rR1n2/3r2QB/N3BN2/1qB1BR2/p1qR2p1/2N1N1rR/bbbK1kP1/2R5 b - - 0 1 legal: proof: f4 b5 c4 g5 a4 e5 axb5 d5 fxe5 Nd7 cxd5 Ndf6 h4 g4 Ra5 Ne4 Ra1 Ng5 hxg5 Qe7 Qa4 Qf6 Qd1 Qd8 e4 Kd7 b4 f5 d4 c5 g6 a5 e6+ Kd6 b6 h5 e7 h4 e8R f4 g7 f3 e5+ Kd7 d6 Kc6 d5+ Kb7 e6 c4 d7 f2+ Kd2 a4 d6 Kc6 b5+ Kd5 e7 Ke4 b7 h3 b8N h2 b6 Ba6 b7 Kd4 Ba3 Rh7 Ne2+ Ke4 Nf4 Qb6 d8R Nf6 g8B Nd7 Nd5 Qb5 Bc5 Bg7 Ne3 Bb2 Be6 Nf8 d7 Rh3 Qb3 Rg3 Qc3 Kf4 Bd3 f1B Bc2 Bd3 Qg7 Bf5 Rc1 h1R Nc3 Rh7 Ra3 Bd3 Bb1 Bc2 Rb3 Rgh3 Ra3 Kg3 Rb3 Kf2 Ra3 Ng6 Rf8+ Rf3 Rf5 Nf8 Qh8 Rf7 e8N Rg7 Nf6 Re7 Nc6 Rc8 b8B Bb7 Bf4 Rg3 Nb4 Bd5 Na6 Rf7 Qg7 Re7 Re8 Rf7 d8R Rd7 Re7 Qb3 Nb5 Bd1 Rc2 Be4+ Rd5 Bg6 Nf1+ Re3 Bf5 Be8 Rd4 Bf7 Re5 Bd5 Be6 Rh3 Nd6 Qb5 Rg5 Rb3 Be5 Rc3 Rh5 Rf3 Rh3 Rg3 Rcc3 Bb3 Bh7 Ba2 Rc2 Be4 Re3 Bg6 Ree4 Bf5 Ne3 c3+ Kd1+ Kg1 Rf4 Be4 Rf5 Bd3 Rd2 c2+ Ke1 c1Q+ Rd1 Qc2 Nde4 Qcc4 Nc3 Bc2 Rc1 Qbb3 Rg5 Qbb5 Kd2+ Kf2 Rf5+
1K1b1Q2/3N4/qB4pQ/6Q1/qQpr1r2/1QBB1R1B/2PNrnk1/n3Q1nR b - - 0 1 legal: proof: g4 e5 d4 b5 f4 h5 gxh5 b4 e4 b3 f5 Bb7 dxe5 Nh6 axb3 Bd5 b4 Be6 fxe6 Ng8 b5 Rh6 Ne2 Rh7 Ng1 Rh8 Ke2 Ke7 Kd3 f5 Kd4 c5+ Kd5 a5 b4 a4 h4 a3 h6 d6 h7 a2 h5 f4 b6 g6 b5 c4 b7 f3 h6 f2 b6 Qd7 Be3 Ra6 Qh5 Qe8 Bd3 f1Q Qg5+ Qf6 Nf3 Nc6 b8Q Nd4 b7 Bg7 Nbd2 Qc8 Raf1 Ne2 Bb6 Qf8 Kc6 a1N Kc7 Qf7 Kc8 Ke8 e7 d5 Qd6 d4 b8Q Ra5 Qb4 Ng1 Kb7+ Kd7 e8B+ Ke6+ Kc8 Qa7 Bd7+ Kf7 Bg4 Ra3 Qb3 Qa4 e6+ Ke7 Qb7+ Kd6 e7 Qe6+ Kb8 Bf6 e8Q Bd8 Ne5 Nf6 Rf4 Rf8 h8Q Rf7 h7 Re7 Bf1 d3 Rf3 Rf7 Nd7 Re7 Bh5 Ng4 Qef8 Nf2 Bg4 Qf6 Qhg7 Qe6 h8B Qf6 Nb1 d2 Q7h6 d1R Nd2 Qe6 Bc3 Qf6 Nb1 Rd4 Nd2 Qe6 Bd3 Qf6 Qa6 Qe6 e5+ Kd5 Qa7 Rf7 Qa6 Rff4 Qa8+ Qec6 Qa5+ Qcb5 Qab4 Qba6 Qb2 Rb3 Qa2 Rb1 Qab3 Re1 e6+ Re5 Qgh4 Re3 e7 Re2 e8Q Ree4 Rfh3 Re7 Bf1 Re6 Q4g5+ Re5 Nf3 Ke4 Bd3+ Ke3 Rg3 Nfh3 Nd2+ Kf2 Re3 Kg2 Rf3 Re1 Qe2+ Nf2 Qd1 Ree4 Qe1 Re2 Bh3+
1NqB1B2/1pBk1N2/1q1b2Q1/3Np2N/bP1nRQ2/6BK/b2R1BB1/4nqr1 b - - 0 1 illegal: No proof kernel
1N1n4/2K3Bk/r2NQ3/1B1b1Rb1/RnpB2Nq/RpP1bN2/p7/3NBR1r b - - 0 1 illegal: No proof kernel
2kB1RQ1/QB2QQ1B/1K2pr2/pB3NP1/1p1Nb3/rR3Bb1/2n5/r2B1q1n b - - 0 1 illegal: No proof kernel
1RK1b2q/1B3n1r/BNp3N1/p2Nr2k/1B1p3N/3n2N1/2Bn1RNP/b1QQ4 b - - 0 1 illegal: No proof kernel
1Bn1R2b/2BpNB1b/p2Q1r1P/N1Q2Rkq/1n4N1/3b1r1B/pK4B1/2NB4 b - - 0 1 illegal: Other
Bb3nR1/nb1pqpr1/rQ6/2p2R1B/4B2R/B2N1Bb1/3R1PKQ/1k3B1N b - - 0 1 illegal: No proof kernel
Qn2B2Q/p7/4K2b/1Rpn1B1r/kB1R2N1/PNp4B/Bq1RB1Rb/2r2n2 b - - 0 1 illegal: Other
1Q1BBQ2/3NQBb1/BPRB3r/n3R3/bp1K2p1/5pB1/2qnq1Qr/3k1N2 b - - 0 1 illegal: No proof kernel
4N3/4B1N1/1pn5/kN1rRBK1/n1Nr1Pb1/qQpN4/2q1pBR1/1B1Qb2N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 c5 Kf4 Kc7 h4 b6 d4 g6 a4 c4 d6+ Kc6 a6 e6 f6 e5+ Kg5 e4 f4 c3 h6 e3 d7 e2 h7 Ba3 a7 Bc5 a5 Kb5 h5 Nh6 a6 Ng8 d5 Bb4 h6 Ne7 f7 Bc5 f8Q Rg8 h8N Bb4 d6 Bc5 h7 Rg7 Rh2 Qc7 d8N Qc6 d7 Qe4 Ne6 Qd4 d8B Qe4 Qg8 Qc4 Be3 Bd6 Bf2 Nd5 Nf7 Kb4 h8N Kb5 Na3+ Kb4 Nb5 Qc5 Bh3 Ne3+ Bf5 Nc4 Nh3 Nc6 Ne5 Nb2 Rg2 Rd7 Ng7 Na4 Be7 Ka5 Nd3 Qa3 Qgb3 Bc5 Nf7 Rd4 Nfe5 Be6 Rb1 Rad8 a8N R8d5 a7 Bc8 Nac7 Bd7 Kf6 g5 a8B g4 Kg5 g3 Nce8 Bc8 Bh7 Bg4 Bf5 Re4 Ra1 Be3 Bb7 Bd2 Bbc8 Be1 Bh7 Rb4 Bcf5 Rbd4 Nc4+ Ka6 Rh2 g2 Bg6 g1Q Rg2 Bd2 Be1 Qe3 Ndb2 Qb4 Nf2 Qc5 Na7 Rd7 Nh1 Qd3 Bf2 Be1 Ra2 Qb4 Be4 Qd2 Bb1 Qc2 Nd3 Rd8 Na3 Nc5 Bf5 Qa4 Nc4 R8d7 Qb4 Rd8 Rb2 Qa3 Rb3 Na4 Rb2 Qab3 Qa3 Qa2 Rb5 R8d6 Qb4 Qa3 Qb3 Rd8 Re5 R8d5 Ncb2 Ka5 Nb5 Rd7 Nec7 Rd8 Nce8 R8d5 Nc4+
K2n1Rb1/1p1N1r2/4p1n1/2R3Q1/k1P1B2q/qN1NN1bp/RR1r3B/4RQR1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 d5 Ke3 Kd7 Kd4 Kc6 g4 h5 c4 e6 f4 h4 a4 h3 a6 Nf6 a5 Qb6 g6 Rh6 g7 Rh5 g8Q Qc7 a7 Qd8 a6 Qe8 g5 Ng4 g6 Rh4 f6 Rh7 g7 Ne3 f7 Bd6 f8N Rh4 Rh2 Rh5 f5 Rh7 f6 Qh5 f7 Ng2 Ne2 Nf4 Nd7 Rh8 f8R Qg4 Nd2 Ng2+ Nf4 Nh4 Bg2 Rh7 Qf1 Qf3 Nb3 Bc7 Nd3 Qg4+ Bf4 Qh5 Be4 Ng6 Rb2 Qh4 Bh2 Bg3 Re1 Kc7 c6 Kd6 c7 Nc6+ Ke3 Nd8 Kd4 Rb8 a8R Kc6 N7c5 Bd7 c8R+ Kb6 a7 Be8 Nd7+ Ka6 Kc5 d4 Nbc1 Ka5 Nb3+ Ka4 Kb6 Bf7 Rc5 Rh6 Qh8 Rc8 g8R Rh7 Qe5 Rc7 Rg7 Bg8 Qg5 Rh8 N7e5 Rd7 Ng4 Rf7 Ne3 Rh7 Rac8 Rf2 a8N Rg2 Ka7 Rd2 Nb4 d3 Nb6+ Ka3 Nd7 Ka4 Re7 Rf7 Ra8 Re2 Ree8 d2 Nd3 d1Q Re7 Rh7 Ref7 Qc1 Rf4 Rd2 Rg4 Be5 Rg1 Rf7 Rac8 Bg3 Ka8 Rh7 Rf2 Rf7 Ra2+ Qa3 Rfg2 Nc6 Rf8 Nd8 Rge2 Rd1 Rec2 Rd2 Rcb2
RQ2B3/2N1k2B/2b4p/nN1nRK2/1Bpq1B2/R1Bpr3/2rP4/Qqq1B2R b - - 0 1 illegal: No possible last move
q1r1bN2/1R4p1/p1p1Rb2/1Bb1r2N/N1Pk4/qB3R2/1BQNBn2/3RRK2 b - - 0 1 illegal: No proof kernel
bbN1R1B1/4b3/kp2BR2/3Rpb2/1P2rrn1/qB4B1/1R2pQ1R/Q1KR2N1 b - - 0 1 illegal: Other
2Rn3R/1bBp1QNQ/1p2n3/1Pr1R3/Q2RQ1Bq/p1Q4p/Q2N4/1K2b1rk b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 g5 dxc5 b6 h4 Nc6 hxg5 Nd4 a4 Nc6 a5 Qc7 a6 Qb7 axb7 Nb8 Kd2 Kf7 g4 e5 c4 h5 Kc2 a5 b4 a4 f4 a3 f6 Ke6 b5 h4 c6 e4 c5 e3 c7 h3 c6 e2 f7 e1Q f5+ Ke5 g6 Ke4 g5 Bc5 f8Q Rh5 f6 Ra5 g7 Rh4 f7 Qe2+ Nd2+ Ke3 g6 Kf2 Qe7 Qh5 f8Q+ Qf3 Kb1 Rd4 Qa4 Rc4 Qe4 Rc3 Qf7 Rc2 Ne2 Ne7 g8Q Nf5 g7 Ne7 Nf4 Rc4 Nh5 Rc2 Be2 Kg2 Qgh7 Bd4 g8Q+ Ng6 Re1 Bc3 Ng7 Nf8 Qa2 Ne6 Qf7 Bb4 Bb2 Kh2 Be5+ Qg3 Bg4 Rc5 Re3 Ra6 Rd3 Kg1 Rd4 Qh4 Bg3 Ra8 Bd6 Na6 b8R Bb7 Rh8 Rg8 c8Q Nd8 c7 Bc3 Qb8 Ba5 c8R Nc7 Bg3 Nce6 Bc7 Bb4 Qba8 Bc3 Q8a5 Bb4 Nc4 Bd2 Qc3 Be1 Nd2 Rf8 Qe8 Rf2 Qf7 Rg2 Kc2 Rg3 Rd1 Rg2 Kb1 Kh1 Rd5 Qh5 Re5 Qh4 Nf3 Rg3 Rd4 Rg1 Nd2+
4Qq1r/2QQn3/N2p2bp/Qr2np1P/pQ1QBBNp/2K4k/4R2B/1R3B2 b - - 0 1 illegal: Other
1q1Qkb1K/5N2/3Bb1N1/1r2Bp1P/BNR4r/N1r2b2/2Nr1NR1/2NqN3 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 fxe5 Kd7 c4 Ke7 cxd5 Ke8 Bh3 g5 Bg2 Nd7 Bf1 Ndf6 Qb3 Nh6 Qd1 h4 h3 Nh5 gxh5 g4 Ra3 g3 Ra1 Ng4 hxg4 Qd6 Rh2 Qf6 Rh1 Qd8 d4 a5 Kd2 f5 Kd3 c5 b4 g2 e4 h3 b6 a4 b7 a3 b8N a2 g5 h2 g6 Qb6 g7 Bb7 g8N Ra4 b5 Qa5 b6 Rc4 d6 Bh6 e6 Ra4 e5 Bg7 d5 c4+ Kd4 Rh6 d7+ Kf8 d8N Rh7 d6 Rh8 d7 Ra3 Ne2 g1R Na6 c3 Ne7 c2 Nc5 Bg2 b7 Qe1 b8B Bc6 Nf7 Bg2 d8N Bf6 Bd6 Re3 Nd3 Be4 Na3 Rf3 Ng6+ Ke8 e7 Bg5 Bb2 c1R Ne6 Qa5 Ne1 Rc8 Nc1 Bb7 Bb5+ Bc6 Ba4 Rgg3 Rg1 h1B Rg2 Kd7 e8N Rf2 N8c7 Rh6 Nd5 Re2 Nb4 Ke8 Qd3 Bb5 Kd5 Ra8 Nd4 Qa7 Ke6 Qb8 Ndc2 Be7 Bd4 Bf8 Kf6 Rh3 e6 Rd2 e7 Rh4 B4e5 Ra5 Rb1 a1Q Qd4 Kd7 e8N Bc6 Rb3 Rb5 Rc3 Bd5 Rc4 Be6 Qb6 Qd4 Qa5 Qg4 Qa8 Qd1 Qa5 Be7+ Kg7 Rh7+ Kg8 Rg7+ Kh8 Bf8 Ng5 Re7 Nh3 Rf7 Qa8 Kd8 Nf2 Rc7 Nf6 Rc8 N6e4 Ke8 Ng5 Rc6 Nf7 Rcc5 Rg1 Bf3 Rg2 Rc7 Rd4 Rc3 Rc4 Rcd3 Qa5 Rc3 Qd8+
1nR1R2N/1knN3R/3b4/Rr4B1/1n2K1bQ/1R1B1Rrr/2PRBr1b/2q1R3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kd3 Kd7 h4 Kc7 f4 a5 b4 e5 f6 g5 h6 a4 c6 g4 f5 a3 b6+ Kd6 f7 g3 b7 Kc7 b5 g2 h5 d4 f6 a2 b6+ Kd6 c7 Kc6 h7 Bd7 c8B Nh6 Qg4 Ng8 h6 Ra4 Nc3 Qc7 Nb5 Ra7 Nd6 Na6 b8R Rb7 Be2 Ne7 Bg5 Nd5 Nf3 g1R Ke4 d3 Qh4 Rg3 Rhe1 Bg4 Bf5 d2 Rd8 d1R Bg6 Rb8 b7 Rd2 Rc8 Be7 f8R Kb6 Nf7 Bd6 Rad1 a1B Rfe8 Qc5 Bf5 Qg1 Rc5 Qf1 Ra5 Ndc7 Rc8 Bd4 Re8 Bg1 Rc8 Re8 h8R Bh2 h7 Rg8 Re8 Rh3 Rc8 Rg6 Rhe8 Rg8 h8R Ka7 Ke3 e4 Rh7 Rg6 Nh8 Kb6 Bc4 Rf2 f7 Kc6 Kd4 e3 f8R e2 Bfd3 Rg7 Rd2 Rg6 Rb1 Qc1 Ke4 e1N Rba1 Kb6 Ne5 Ka7 Be2 Nd3 Rf3 Nb4 Bcd3 Kb6 Nd7+ Kc6 Be3 Rg5 Rb1 Rb5 Rb3 Ra8 Bg5 Nb8 Ra1 Ra3 Re5 N8a6 b8R Rg3 Ra8 Nb8 Ra5 Kb7 Ree8 Qb2 Re1 Qc1 Rb2 Rb3 Bc4 Rc3 Rb3 Rd3 Rf4 Rdf3 Bcd3 Rh3 Rf6 Rfg3 Rf3
n3Q1rR/B2BrBnq/5b2/r1bK3p/R1B2BN1/kn2BB2/2P3bR/1B1N4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 f5 b4 h5 g4 a5 e4 d5 g6 d4 c6 d3 e6 Kd6 e5+ Kd5 c7 Kc4 e7 f4 Ke4 f3 e8B f2 g5 a4 e6 a3 g7 a2 g6 Ra4 b6 Nh6 g8R Ng4 g7 Ne5 b7 Na6 b8B Rh7 b5 Kb4 b6 d2 b7 Qg5 e7 Qf5+ Kd5 Qf4 Rh8 Bf5 c8B Qh6 g8B Nc4 Qe2 d1N Bef7 Qe3 e8B Qa7 Bc6 Na5 Qe8 Nb3 Be3 Bc5 Bc4 f1R Nf3 Ra5 Rh2 Bh3 B8d7 Bg2 Nc3 Ka3 Bbf4 Rg1 Rb1 a1B b8B Qb7 Ba7 Nc7+ Ke4 Na8 Kd5 Rh6 Rb2 Re6 Rb1 Re4 Ne5 Bb2 Ng4 Re7+ Ne4 Bf6 Rb2 Nc1 Rb4 Qc7 Ba2 Nb3 Bb1 Qb7 Kc4 Qc7 Nef2 Qb7 Bf3 Qe4+ Bd4 Qh7 Kd5 Ne3+ Kc6 Bf1 Nd1 Nf5 Bde3 Ng7 Bc4 Rg3 Kd5 Bg2 Bf7 Nf5 Ngf2 Rg8 Ng4 Ng7 Ra4+
1R2BN2/Kb2rn2/1p1B1kbq/BR3N1q/R2rBB1q/2BB4/P4B1Q/b6n b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 h5 Kc4 c5 Kb5 e5 d4 h4 g4 h3 f4 h2 d6 c4 d7 c3 g6+ Kg7 a6 e4 a7 e3 d5 c2 g5 e2 d6 e1Q Nh3 Qee7 Qe2 Rh7 f6+ Kh8 f7 Kg7 f5 Qc7 d8B Nc6 d7 Nb8 f6+ Kh8 Nd2 Qf4 Kb6 Bh6 f8B Qf7 Bb4 Qf8 f7 Kg7 Nb3 Qd2 Nd4 Qe1 Bf4 c1Q Bc3 Nf6 Nf5+ Kh8 Rb1 Qg7 f8B Qf7 g7+ Kg8 B8d6 Qg6 Rb5 Kf7 g8R Ng4 Qe5 Qcd1 Bd3 Nc6 Rg1 Rb8 a8B Nf2 Rg4 h1B B8e7 Qe6 d8B Be4 Qh8 Ne5 Ka7 Bf8 Bda5 Qh6 g6+ Ke6 g7 b6 Beg5 Nf7 Bh4 Nh1 Bf2 Bcb7 Rh4 Qdh5 Ng5+ Kd7 Rg4 Rd8 Ne6 Be7 Rf8 Bf6 g8B Rg7 Bh7 Bd4 Bg6 Be5 Bcd2 Ba1 Bdc3 Rh7 Rg8 Rg7 Nf8+ Ke8 Bg1 Qeh4 Bf2 Rd7 Bdc5 Rd4 Bcd6 Kd8 Qh7 Nh8 Be8 Nf7 Ng3 Bg6 Nf5 Bc8 Bg2 Bb7 Bge4 Nh8 Rg1 Re7 Rgb1 Nf7 R1b4 Q4g5 Rh8 Qgh4 Ra4 Q5g4 Qg8 Rc7 Nh7 Bh5 Qg7 Qf3 Qg2 Bg6 Qh2 Qfh5 Rf8 Re7 B8c6+ Re8 Bcd5 Kd7 Bc6+ Ke6 Rh8 Re7 Rb8 Q6g5 Be8 Qgh6 Nf8+ Kf6 Bd5 Qh8 Bf3 Q8h6 Bfe4
R4K2/r2PB2R/q7/Qb1nBB1N/1b4Bp/Rkrb1BBb/N2q1B2/n5B1 b - - 0 1 illegal: No proof kernel
2R1qR2/2R1k3/1RBrB1q1/3Q4/1R2bq1R/RNKpnr1N/2p2BP1/2n3bR b - - 0 1 illegal: No proof kernel
kBbr2q1/8/1QNb2bB/1P2QN1r/3B3B/2RB1KnR/2B2bB1/2rB3q b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Kf2 Kd7 d4 h5 b4 c5 f6 Kc7 b6+ Kb8 b5 a5 f7 e5 d6 e4 d7 c4 d5 e3+ Kf3 e2 d6 e1B b7 h4 Nc3 a4 Bd3 a3 Bb2 h3 Na2 h2 Qe2 c3 Rc1 c2 Qe5 Qc7 d8B Rh7 d7 Be7 f8B Bg3 Nb4 a2 Bd4 a1Q Ne2 Nh6 g8B Qa2 g7 Bf2 g6 Bg3 Bd5 Bf6 g8B Qb1 g7 Bf2 Ng3 Rh8 Nf5 Be7 Bh7 Bd6 g8B Qc4 Bh4 Qcb3 d8Q Q3a2 Rcg1 c1R Rg3 Qab3 Rh3 Qc4 Rg1 h1B+ Rg2 Qcb3 Qb6 Q3a2 B5e4 Qab3 Bgd5 Q3a2 Bc6 Qg8 Bed5 Qa1 Bb3 Qb1 Bd1 Qa1 Ne3 Nf5 Bh6 Ng3 B3c2 Qb1 Bhd3 Rh7 Nf5 Rh8 B6g5 Rh5 Bh6 Qa1 Kf4 Qb1 Rg1 Qa1 Bg2 Qb1 Re1 Qa1 Re3 Qb1 Bgf1 Be4 Bg2 Qa1 Ng7 Bg6 Nf5 Qc3 Kf3 Qe1 Qbc5 Qh1 Nc6+ Kc7 b8B+ Kb7 Bc7 Rb8 Qb6+ Ka8 Ba4 Bb7 Bac2 Rd8 Bb8 Bc8 B3e2 Be8 Rc3 Bg6 Bed3
7r/2qB1Bb1/Brpn2R1/R2p1rB1/2qBB1KQ/2B5/B2Qn1P1/N2k1N2 b - - 0 1 legal: proof: b4 g5 f4 e5 fxe5 b5 c4 g4 a4 g3 axb5 Qh4 b6 Bb7 b5 Bc8 b7 Na6 hxg3 Qd8 g4 Nb8 g5 Qe7 Ra6 Qf6 Ra1 Qd8 d4 d6 e4 Bd7 b6 Qf6 d5 Bb5 cxb5 Qe6 dxe6 Kd8 Ba3 Ke7 Bc1 Ke8 Kf2 Ke7 Kf3 a5 g6 f5 g7 h5 Na3 a4 Bg5+ Nf6 g8B h4 Ne2 h3 Ng3 c6 Qd2 f4 Nc2 Na6 b8B a3 b7 a2 b6 h2 Ba7 Rc8 b8Q Rh4 b7 Rh8 Bd4 Nb4 Ba6 Nd3 Nf1 Bg7 Qa8 Nc1 b8B Rh5 Bc3 Rh8 Ba7 Ne2 Bad4 Rb8 Bf7 Rb1 Qg8 Rb3 Qh7 Rb6 Qh4 d5 Bg6 Kd8 e7+ Kd7 e6+ Kd6 e8B Rf8 Bd7 Ne8 e7 Rf5 Kg4 f3 Bh7 f2 Bg6 Nc7 e8B Nb5 Rg1 h1R Bef7 Rh3 Re1 a1Q e5+ Kc7 e6 Kd6 e7 Qa5 e8B Rh1 Bdf6 Kc5 Bfd4+ Kc4 Ra1 Rh2 Rh1 Kb3 Ra2 Nd6 Bh7 Re5 Be4 Rf5 Bg6 Rh3 Bef7 Rh2 Bb7 Qa7 Ba6 Qc7 Ra5 Rh3 Qg3 Rh8 Rh6 Re8 Qh4 Rh8 Nh2 f1Q Bh7 Qa1 Nf1 Qa4 Rg6 Qc4 Rb5+ Ka2 Ra5+ Kb1 Qd3 Nf4 Na1+ Kc1 Qe3+ Kd1 Bb1 Ne2 Ba2 Be5 Rf6 Rf3 Be4 Rf5 Rg6 Bg7 Qd2#
1q2B3/2qk1BbN/3nbbn1/R1B1B1Pr/rQ1Bq3/1BN5/Q3BK2/R1B1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 h5 e4 c5 d4 f5 g4 a5 e6 c4 g6 h4 e5 h3 e7 a4 d6 f4 b6 h2 b5 f3 b7 c3 d5 a3 g7 c2 b6 a2 d7+ Kf7 e8B+ Ke7 d6+ Ke6 Qd2 Rh5 Nc3 Rh4 Kf2 Qg5 d8B Qf5 d7 Rh6 Be2 Qh7 Be7 Nf6 d8B Nc6 b8B Qe4 b7 Rh5 Nh3 Ra4 Bc5 Ne7 Bdb6 Ng6 Bbd6 Qb4 Bf7+ Kd7 b8Q Ne8 g8B Bg7 Ng5 Qb3 Bdc7+ Nd6 Nh7 Qb4 Rg1 h1Q g5 Qhh4+ Rg3 Qhe4 Bd4 Qb1 Bbc5 Bf6 Qa8 Qb8 Bb3 Bg7 Bgf7 Bf6 Qa5 Bg7 Qb4 Bf6 Kf1 f2 Rf3 Bg7 Kg2 f1R e6+ Ke7 Kg3 Re1 Kf2 Bd7 Rf5 Bc8 Rb1 a1B Rd5 Bb2 Ra1 Bf6 Be5 Bd7 B7b6 Bc8 Ba7 Kd8 e7+ Kd7 Bcd4 Bg7 Ra5 Bf6 Nb1 Bg7 Bac5 Bc3 Ba3 c1Q Qa2 Qcc2 Bc1 Bb2 Bb6 Qcc7 Bbc5 Bf6 Bde3 Bd4 Nc3 Bg7 Bg3 Bdf6 Bed4 Bb7 Bgf4 Bd5 Bfe5 Be6 e8B+
kq3b1r/4r2B/n1BB2b1/PRBp1b1N/R4BB1/4Q1Bq/r1N2B1Q/4K2n b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 f4 d5 a4 Kd7 h4 Kc7 c4 g5 f6 e5 c6 b5 h6 g4 h7 g3 f7 g2 f5 b4 f6 b3 c5 b2 h5 e4 h6 e3 a6 e2 a7 Ne7 a5 Bg7 f8B Qd7 f7 Bb7 Qd3 Ng6 Bd6+ Kc8 f8B Ne5 c7 Rg8 h8B Bf6 h7 Na6 Nh3 g1Q Nf4 Bd8 Qe3 Rg3 Ra4 Bf6 Nh5 Nc4 Na3 b1B Nc2 Bg5 Bd4 Qh3 h8B Rg2 Bhe5 Bh6 Bg3 Qgh2 Bfe7 Rb8 a8B Ne5 Rg1 Bc6 Beh4 Be8 Bc6 Bd7 Bf2 Qf4 Bhg3 Ng4 Bd2 Rh2 Bg2 Be6 Be4 Bf8 Bh7 Bf5 Qb3 Qe3 Nb4 Qe4 Bfe3 Bd7 Qb2 Qhg2 Bb5 Kb7 c8B+ Ka8 c6 Qe8 c7 Qh3 Rg2 Nh6 Kf2 e1R Bef4 Be7 B2e3 Re2+ Kf1 Rc2 Ke1 Rc5 Qa2 Ng4 Rb2 Nf2 Rb3 Nh1 Qc2 Bc6 Bg4 Bd7 c8Q Rc7 Bb6 Qf8 Qe8 Rbc8 Qb2 Bg6 Bbc5 Bdf5 Bc6+ Rb7 Qf2 Qg8 Qg1 Ra2 Qh2 Qh8 Nc2 Qb2 Qd7 Rh8 Bef2 Bf8 Rbb4 Qb3 Qe7 Qb2 Qe3 Qb3 Be8 Re7 Rb7 Qb6 Bc6 Qc7 Rb5+ Qb7 Be8 Qb8 Bc6+
3rQ3/q1kbB3/3BrP2/1R1p1KnB/NbN2B1B/8/1BnrBBR1/q5Qb b - - 0 1 illegal: No possible last move, all moves rejected
B2qNBNk/1rNR4/b4b1n/1pN3nb/PK2RN1r/Q7/Q5N1/1b1N2Nr b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 h5 d4 b5 Kd2 c5 Kc3 f5 a4 Kf7 e4 Kg7 d6 c4 d7 h4 a6 f4 a7 h3 g6 h2 e6 f3 g5 f2 e7 Nf6 e8N+ Kg8 d5 Rh6 e5 Rh3+ Qd3 Qe7 d8N Be6 g7 Bd7 d6 Rh4 e6 Nc6 Ba3 Qf7 e7 Ng4 Bg2 f1B Nb7 Nb4 Nc5 Qe6 Nf6+ Kf7 g8N Kg7 e8N+ Kh8 g6 Nh6 Nd5 Na6 Ne3 Bc8 d7 Qe7 d8N Nc7 Kb4 Rb8 a8N Ba6 Nc3 Be2 Re1 Rb7 Ne6 Qd8 Ncd1 c3+ Nf4 Ne6 Nac7 c2 Bf3 c1R Ng2 Ra1 Qb3 Bd3 Re4 Bb1 Qe3 Be7 g7+ Kh7 Rd4 Bf6 Rd7 Ng5 Qc3 Ra7 Ba8 Rb7 Ne2 Ng4 Re1 h1B Ng1 Nh6 Re3 Qb8 Re4 Qd8 Nge3 Bf3 Neg2 Bh5 Kb3 Nhf7 Ne7 Rh2 g8Q+ Kh6 N5e6 Rb8 Nge2 Rb7 Nde3 Rh4 Bd6 Bg6 Kb4 Bc2 Nc5 Bh5 Qa3 Rah1 Ng1 Bb1 Nd1 Ne6 Qg4 Kh7 Ng8 Kh8 Qe2 Nh6 Qea2 Ng5 Bf8
2r1n1Bq/b2QqQ1p/5NRn/1QR1Q1Bq/4Q2Q/5q1Q/1rQ1P3/kb1NK3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Kd7 g4 a5 b4 f5 d6 Ke6 d7 Kd5 b6 Kc4 b5 c5 e6 f4 g6 a4 g7 a3 g5 f3 g6 a2 b7 Ra7 d5 Qe7 d8Q Qc7 d6 Ra6 b6 Ne7 g8Q Qc6 g7 Nd5 e7 Bd7 e8Q Qc7 Nc3 Bf5 d7 Nc6 b8Q Ne5 b7 Rb6 Rh6 Nf7 Bg2 Nf6 Ne4 Qh2 Qg3 Qh5 b8Q Bd6 Qd4+ Kb3 Nh3 c4 Rg6 c3 Nhf2 c2 Qh3 Bc5 Nd1 Rb5 Qbg3 Ba7 Bg5 c1Q Qgh2 Qb2 Rc1 a1Q Rc7 Qc2 Rc5 Ka2 Qgf8 Qab2 g8Q Ka1 Qde7 Nh6 Qb3 Rb7 Qf2 Qe5 d8Q Qcb2 Qfh4 Rb6 Qb7 Qe7 Qd4 Rb4 Qed7 Rb5 Qg7 Rc8 Qdd3 Rb4 Q3b5 Ne8 Qf8 Qbg7 Nf6 Bb1 Qc2 Rb2 Qe5 f2+ Kf1 Bb8 Bd5 Ba7 Bg8 Qh8 Qbe4 Ng4 Qf7 Nh6 Kg2 f1Q+ Kg3 Qh1 Kf2 Q1f3+ Ke1
2B2kBQ/N4B1B/2R1p1r1/1N2K1Q1/1BqnbrrB/5B1P/3p1bR1/2b1Bn2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 d5 Kf3 b5 Kf4 g5+ Ke5 d4 f4 d3 c4 b4 a4 b3 c6 g4 c7 g3 a6 g2 f6 b2 h3 Bg7 a5 Bh6 f7+ Kf8 f5 Be3 c5 Bh6 c6 Kg7 f8B+ Kf7 a7 Bg7+ f6 Rh7 h6 Na6 Ra2 Bg4 c8B Qd7 c7 Qc6 Na3 b1R Bg5 Be6 Qd2 Bd7 Nb5 Be8 Ne2 g1B Bf5 Qb7 c8B Bb6 Nec3 Be3 Bh4 Nc5 a6 Bf2 Qg5 Rb4 Rh2 Qg2 Rc2 Qc6 Rg2 Nb3 Be4 Rh8 h7 Nd2 Bef5 Rb8 a8B Rg4 a7 Qc4 Bf3 Bh6 a8B Bc6 Na7 Be4 Ncb5 Rb6 Bd5+ Ke8 B1e2 Nf1 Bd1 Rc6 Rc1 Rd6 Bb3 Rb6 Ra1 Rd6 Ra6 Rf4 Rc6 Rg4 Qg7 Bc1 Qg5 Nh6 Bg8 d2 f7+ Kd8 Bg7 Rg6 f8B Ke8 Bf6 Rf4 Bbd1 e6 Bb4 Rg4 Bc2 Rf4 B5g4 Nf5 Bh5 Nd4 Bg3 Be3 Be1 Rg4 Qf5 Bf2 Bh4 Rf4 Qg5 Rg4 Rc5 Kf8 Rc6+ Kg7 Bf7 Re8 Bg8 Re7 h8Q+ Kf8 Ba5 Reg7 Bb1 Rf6 Bhf7 Rff4 Bd3 Rg6 Bc3 Bd5 Bf5 Be4 Ba5 Rg7 Bfh7 Rg6 Bb4+
1rrRRN2/NBB2p2/n2q4/7k/1qRn4/2RKRQR1/brpQ3P/4bRR1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 c5 d4 a5 Kd2 g5 e4 c4 d6 g4 d5 g3 e6 c3+ Kd3 a4 h6 g2 h7 c2 b6 a3 b7 a2 e5 Bg7 d7+ Ke7 b5 Qf8 d8R Ra7 b6 Na6 b8R Nc7 b7 Na8 Qf3 Bf6 Ne2 g1R Nf4 Qh6 Bg2 Rf1 Rg1 Qg7 Nc3 Nh6 Nb5 Ra4 Na7 Rf8 h8R Bh4 Rg8 Qh8 Rg3 Bd7 Rbc8 Nc7 b8R Nf5 Rb4 Qf6 Rc4 Na6 Bh1 Re8 d6+ Kf8 Bg2 Nd4 Ng6+ Kg7 e7 Rb4 e6 Rb8 Bf4 Rfb1 Rc3 Rf8 e8R R1b2 e7 Be6 Raf1 a1Q d7 Qa5 R8c4 Qb4 Bc7 Kh6 Bh1 Rh8 Nf8 Qe5 Qf5 Qec5 Bb7 Qd6 Qf3 Rg8 Rc8 Rh8 Red8 Rg8 e8R Bd5 Re3 Be6 Rg4 Be1 Re8 Kh5 d8Q Rg5 Qd7 Rc5 Rcd8 Bd5 Ba5 Rcc8 Bc7 Be6 R4g3+ Kh4 Rc5 Bb3 R5c4 Ba2 Qf2 Kh5 Qc6 Qe6 Qd2 Qed6 Qf3+
2Nb1Q1B/Rp3p2/B4N1p/5N2/2NQnk2/1P1rN1R1/r1n2bNK/1bn3NN b - - 0 1 illegal: No proof kernel
2KQ2R1/Q2Q3k/Bp1r2R1/q3N2q/B1b1P1n1/2Q1p1q1/1BRN3R/n5B1 b - - 0 1 legal: proof: g4 c5 d4 d5 dxc5 h5 gxh5 e5 c4 a5 cxd5 e4 b4 Be7 bxa5 Bf6 e3 Bd4 exd4 e3 f3 Ra6 Bh3 Re6 Bf1 Re4 fxe4 Kd7 Qc2 Ke7 Qd1 Ke8 Ke2 Kf8 Kd3 f5 Kc4 g5 Kb5 Kg7 h4 f4 a4 f3 d6 f2 h6+ Kh7 a6 g4 d7 g3 a5 g2 h5 b6 c6 Qf6 d8B Qe5+ d5 Qe6 a7 Qe8 a8Q Qf8 d6 Qf3 a6 Bb7 a7 Nf6 d7 Qg4 c7 Rf8 c8R Nc6 Bb2 Rh8 Nd2 Na5 Rc2 Bc8 Ngf3 g1Q Rh2 Qg7 Bc7 Re8 d8Q Rg8 Ne5 Q7g2 Nf7 Be6 Ka6 Nc6 Kb7 Qg4 Ba6 Nd7 Kc8 f1Q Ra5 Qe1 Rg5 Ncb8 Rg6 Rg7 Bg3 Bb3 Bf2 Q1g2 Bg1 Q4g3 Qg4 Nc5 Qgd7 Ba2 Qab7 Nc6 a8B Q3f3 Qa7 Ne5 Bc6 Ng4 Ba4 Nb3 Qf6 Qgg3 Qc3 Kg8 h7+ Kf8 h6 Na1 Bd3 Bc4 h8Q+ Rg8 h7 Qf5 Qhe5 Qh5 Qed4 Rg7 h8R+ Rg8 Rf6 Kg7+ Qd8 Re8 Rg8+ Kh7 Rfg6 Re6 Q4d7 Rd6 Bf1 Qef2 Bd3 Qf5 Be2 Qa5 Bd3 Bb3 Ba6 Bc4 Ne5+
2R4Q/2p2k2/1qq1BB1q/1qQ3PN/6r1/1BQbr1R1/BQR1p3/1K3N1R b - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 b5 a4 e5 axb5 d4 c4 d3 c5 Bd6 cxd6 Qd7 exd3 e4 d4 Qd8 d5 Nc6 d4 Ne5 fxe5 Qe7 Nd2 Qd7 Nb1 Qd8 Kd2 a5 Kc2 f5 g4 h5 b4 e3 d7+ Kf8 b6 a4 d6 a3 e6 h4 b5 h3 g6 f4 e7+ Kg7 e8B f3 b7 a2 b8Q h2 b6 f2 d5 Ra3 b7 Rd3 g5 Qe7 d8Q Rh7 d7 Qe4 d6 Rd4+ Qd3 Qc6+ Qc3 Rh3 Bf7 Rg3 Qa7 Qg2 b8Q Rf3 Qbb2 Ba6 Qac5 Rh3 Ne2 Nh6 Nd2 Rh4 Bb3 Ng8 Ng3 Re4 Bfc4 e2 Ndf1 Nh6 Qb8 Qg1 d8R Nf5 d7 Re3 Rc8 Qg2 d8R Qc6 Rb1 a1Q Rh8 Qb5 Rh3 Qaa5 Bd2 Qc6 Rc1 Qab5 Kb1 Qbb6 Rc2 Bb5 Rg1 h1Q Be1 Qhd5 Rhh1 Qe5 Bd2 Rg4 Be1 Nd4 Rg2 Qee8 Nh5+ Kh8 g7+ Kh7 g8B+ Kg6 Bce6 Bd3 Bec4 Ne6 Rg3 Qf8 Qa8 Qh6 Qaa1 Qbb5 Qh8 Qbb6 Bc3 Qcb5 Bf6 Q5c6 Qaa5 Qcb5 Nh2 f1Q+ Qe1 Qg2 Nf1 Qgc6 Qec3 Ng7 Bgd5 Ne6 Ba2 Kf7 Bcb3 Qa7 Bdc4 Qab6 Bxe6+
6r1/Q2PQ1BK/1r2B3/Bn1qk2b/N2N4/3RBR2/nR1Rb1n1/N1q2r1N b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 f5 Rg8 g6 Qd8 g5 Bg7 fxg7 Rf8 axb3 Rg8 b4 Rh8 b5 Ng8 Kf2 Ke7 Ke3 Kd6 Kf4 a5 b4 h5 d4 c5 f6 h4 b6 a4 b7 a3 b5 a2 b6 h3 f7 c4 f8B+ Ne7 g8N c3 g7 h2 g6 e5+ Kg5 e4 Nh3 e3 Qa4 c2 Nh6 e2 g8R e1Q g7 Be6 Qa7 Bd7 Ng4 Qg3 Be3 c1R Nf2 Rc7 Bh3 Rc8 Rd1 h1B Rd2 Be4 Nc3 Bc6 Rad1 a1N Nh1 Nb3 Na4 Na6 b8N Bb5 b7 Qa5 Nc6 Qf2 b8R Bh7 Kh6 Bc4 Rd3 Qg3 R1d2 Nc7 Rb4 Nc1 Rbb2 Kd7 d6 Ke6 d7 Nb5 d8B Qgc7 d5+ Kf5 d6 Rcb8 d7 Ng6 Nd4+ Ke4 Rbc2 Na2 Rb2 Qc5 Bc7 Nh4 Bb6 Qc3 Ba5 Qc2 Bg5 Qb3 Ne3 Rb6+ Be6 Ke5 Nec2 Ng2 Na1 Rc8 Rf3 Be2 Be3 Qc1 Rf5+ Ke4 Bg5 Qd5 Bf4 Bf1 Rd3 Ne1 Be3 Rc2 Rf3 Rf2 Be7 Ke5 Bf6+ Kd6 Rc8 Ng2 g8Q Bg6+ Qh7 Rg8 Rcc2 Bh5 Rcd2 Be2 Qg7 Rf1 Kh7 Re8 Qf7 Ra8 Bg7 Rg8 Bf8+ Ke5 Qe7 Qcc6 Bfh6 Qc1 Bg7+
Rr1B2N1/kn3n1R/1n3Q2/1bPBN1Q1/q5Q1/rn2B1Kb/1q3Q2/1B3R1R b - - 0 1 illegal: No possible last move
3NrRb1/1NRN2nn/3R2R1/K1Q3q1/1N4P1/3B4/1BbnkBb1/QBq2b2 b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 f5 d4 b5 dxc5 a6 axb5 f4 g3 Qc7 g4 Qd8 Kf2 g5 Qd3 a5 Qb3 Be7 Qe6 Ra6 Qb3 Rf6 Qa2 Rf5 gxf5 g4 Qd5 g3+ Ke1 g2 Qd1 Bh4+ Kd2 Bg3 hxg3 Ba6 Ke1 Bc8 b4 Kf7 Kd2 h5 Kc3 d5 e4 a4 f6 Kg6 g4 Kg5 c6 a3 e6 a2 e5 h4 c7 h3 b6 h2 b7 Rh4 b5 d4+ Kb4 d3 c4 d2 b6 f3 c5 Kf4 e7 Ke3 e8B f2 f7 Rh8 f8R Rh6 e6 Qg5 e7 Qg6 c6 Qd6+ Ka5 Nf6 Nf3 g1Q Na3 Qf4 Bg6 Bf5 c8R Be4 e8N Na6 b8B Qgg3 c7 Qh3 b7 Nd7 Ne5 Bc2 Nc6 Nf6 Nd8 Nc5 Nd6 Ne6 Bfd3 f1B Bb2 Nh7 Bge4 Kf2 Ba7+ Qe3 b8N Ng7 Nd7 Re6 N6b7 Re8 Rc1 Bb3 Rc6 a1N Rg6 Bg8 Nc2 Qf6 Rg1 h1B Nb4 Bhg2 Rh1 Qf4 Rhh6 Qf6 Qc1 d1B Bb1 Ba4 Bed3 Bc2 Bb6 Qf4 Rd6 Kf3 Rhg6 Qg1 Bf2 Nb3+ Kb6 Nd2 Ka5 Bd1 Qc3 Bc2 Qa3 Qh1 Qa1 Qf6 Ra8 Qh6 c8Q Qff4 Qc5 Qg5 Be4+ Ke2 Rc8 Qe3 Rc7 Qc3 Ba3 Qb2 Bf5 Qc1 Bb2 Bf3 Be4 B3g2 Bd3+
Q4BRr/q1NbNk1R/BR1B1r2/B3q2q/2PN1n1R/r2N1b2/4r3/1K3Q2 b - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 f5 e4 b4 exf5 b3 f6 Nc6 g3 Ba6 axb3 Bb7 b4 Nb8 b5 Bc8 h4 g5 Ra5 Nc6 Ra1 Nd4 g4 Nf5 gxf5 g4 Bh3 Bh6 Bf1 Bg5 hxg5 Kf7 Ne2 Kf8 Ng1 Ke8 Kd2 d5 b4 a5 b6 h5 f7+ Kf8 g6 e5 b7 g3 b8R d4 b5 d3 g7+ Ke7 f8N g2 b6 e4 b7 h4 f6+ Ke8 f5 h3 f7+ Ke7 c6 h2 f6+ Kd6 c7 a4 Nh3 g1Q Ne6 a3 f8B+ Kd5 f7 a2 Nd4 Qg6 Bd6 Ne7 g8R Qh5 f8B Qde8 Nf2 Bd7 c8N Ng6 Na3 Qee5 Nab5 e3+ Kc3 e2 Kb2 e1R Bd2 Re2 Ba5 d2 Nd3 Nf4 Nc7+ Kc4 Qc1 d1B Ne7 Ra6 Rb1 a1R Ra8 Rc6 b8Q Ra3 Ra7 Ra6 Qa8 Rc6 Rhg1 h1Q R1g4 Qg1 Rh4 Qgg7 Bc5 Rf6 Bd6 Re3 c3 Bf3 Kc2 Qgf7 Rb6 Re2+ Kb1 Qe8 Rab7 Qb8 Bh3 Qa7 Qf1 Ba4 Bc8 Bb5 Qf2 Bd7 Qf1 Qh6 Nef5 Bb5 Ne8 Kd5 Rh7+ Bc6 Ba6 Qh5 Nb5 Ke6 c4 Bd7 Ne7 Rf5 Nec7+ Kf6 Bg7+ Kf7 Nd4 Rf6 Bf8+
Q2b1BnB/2npR1NK/6rb/1b3Bq1/4q2B/N2Q1PR1/2Q3N1/kN2rQ2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 c5 exf5 c4 a4 c3 axb5 Rh6 dxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 g5 c4 g4 h6 g3 c6 g2 b6 Bb7 c5 Qc7 h7 Bh6 h5 Ne7 f3 Rd8 h8B+ Bg7 a6 Rf8 h6 Re8 h7 Qd6 a7 Ng8 Qd3 Na6 Nh3 g1B Nf4 Rf8 Rh3 Qc7 Ne6 Ne7 Bg5+ Kf7 f6 Qd8 Rg3 Nd5 Kf5 e4 c7 e3 c8Q e2 c6 e1Q c7 Qd2 Bh4 Qc1 Bh3 Bc6 b7 Qe8 b8Q Ba4 Qbb5 Bh6 Ng7 Rg8 Qbc4 Rb8 a8Q Bb6 Ra2 Ba5 Re2 Bb5 Re1 Qee3 Qf1 Rb6 Qcd3 Qd4 Re8 Re6 Bg4 Re1 Re2 Qde3 Bh3 Qe8 Re7+ Kf8 f7 Nf6 Kg6 Qf4 Qd8 Qc1 c8N Nc7 Na7 Qf4 Qdc8 Qd8 Bf5 Qe4 Re5 Bb6 Rc5 Ke7 Rc2 Ba5 Re2 Bb6 f8N Ba5 Ne6 Bb6 Nf4 Ba5 Qe3 Kd6 Qd3+ Kc5 Ng2 Kb4 Re3 Ne6 Qcc2 Nc7 Nc8 Qde7 Nd6 Q7e5 Nc4 Q5f4 Nca3 Qg5+ Kf7 Bb6 Ne8 Rg6 Bg7 Ng8 h8B Qc6 Re7 Qe4 Bf8 Ba5 Qc1 Ka4 Ng7 Kb4 Qdd2+ Kb3 Qdd3+ Ka2 Qcc2+ Ka1 Ne6+ Qe5 Qdd2 Na6 Qe3 Bd8 Qed3 Nc7 Ng7 Qe4 Re6 Ne7 Re5 Ned5 Kg8 Ne7+ Kh7 Ng8 Re7
1b5n/6K1/QN1pP3/1rb4r/nB2BR1Q/1nN1r1NN/B3R1Rk/3B1Rb1 b - - 0 1 illegal: No possible last move, all moves rejected
bB4r1/1RQp1R1B/4n3/3B4/1rrkPb1Q/6N1/K1bRnBN1/R2Nn1N1 b - - 0 1 illegal: No possible last move
3Qr1r1/2Rrq3/2nNQ1BQ/2N1N3/2B2P1B/K1Bn1Rrp/2b1r3/2kQ1N2 b - - 0 1 illegal: No possible last move, all moves rejected
1QQR1Q1r/KP2R3/5rbB/1q2N3/8/1R1bk1BB/1Bp2b1r/QbNRn3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Nc6 d5 Na5 bxa5 Ba6 Kf2 Bb7 Ke1 Bc8 Kf2 Ke7 Ke3 c5 d4 h5 g4 f5 e6 Kd6 g6 c4 g5 a3 b6 a2 g7 h4 g6 h3 b7 h2 a6 c3 e7 c2 e8Q Rb8 a7 Bd7 a8R Bb5 Na3 Bd3 Nc4+ Kc7 Bh3 Qe7+ Ne5 Kb6 d6 Rh6 d5 Kc5 d7 Bc4 d8B Bb3 d6 Qd7 Bb2 Rh4 Bf6 Rh7 Rb1 a1R Qc8+ Qc7 d7 Bd5 d8B Qc6 Bc7 Nh6 g8Q Ba2 g7 f4+ Kd3 f3 e4 f2 Ne2 Qb6 Nc1 f1B+ Ke3 Be7 Qgf8 Bd3 g8Q Nf7 Bg7 Qb5 Rg1 h1B Qf1 Kb4 Kd4 Ng5 Q1f6 Bf3 Rd1 Bh5 Qa6 Bg6 Qh8 Baf7 Qa7 Ra6 Qhg8 Rf6 Qa1 Ba2 Qh8 Qa6 Bd6+ Ka4 Kc5 Nf3 Qhg8 Ne1 Qh8 Qa5+ Kc6 Ba6 Qhg8 Qd5+ Kb6 Qb5+ Ka7 Ka5 Qf5 Re8 Rd8 Rh6 Bc7+ Kb4 Qc8 Kc5 Qb8 Rh5 Qe6 Bd6 Qec8 Be7 Nf3 Kc4 e5 Bb4 e6 Bc5+ Ka8 Rh6 e7 Bf2 Ne5+ Kc5 Ka7 Rh4 Qf7 Reh8 e8R R4h7 Re7 Rh5 Qf8 R5h7 Bd7 Rh2 Bd4+ Kd5 Rb3 Ke4 Be6 Bb1 Bh3 Bg3 Bc3 Ke3 Bd6 Bf2 Bc7 Qd5 Bb2+ Bad3 Nf3+ Re6 Bg3 Qb5 Ne5 Rf6 Bh6+
1BRN4/r1R4Q/NqB3B1/Pb3K2/1bQQ1p2/1R2rr2/2r5/Bq1QRn1k b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 g4 e5 f4 h5 gxh5 d4 fxe5 b4 c3 Nc6 cxd4 Na7 d5 Nb5 axb5 Ke7 Na3 Kd7 Nb1 Ke8 Kf2 Kd7 Ke3 f5 Kf4 c5 h4 c4 e4 c3 d4 c2 e6+ Kd6 h6 b3 h5 b2 e7 g6 e8Q Rb8 h7 Nf6 e5+ Kc7 b6+ Kb7 h6 Nd7 d6 Kc6 d5+ Kc5 e6 Rg8 h8B Qc7 b7 Qd8 h7 Rg7 e7 Ra8 b8R Ra6 Ne2 Qc7 Bg2 Qa7 Rb3 Qb7 Qf7 Nf6 e8B Qb6 d7 Ra7 d8Q Ne4 d6 Ng3 d7 Nf1 Nd2 b1Q Bc6 Ba6 Nd4 Bb5 Qc4+ Kd6 Rh6 Rf7 Ne6 Rf6 Kg5 Ke5 Ne4 Bb4 N4c5 f4 Ba3 c1R Na6 Rc2 Kg4 g5 Bg6 Rf2 Qg8 Rf3 d8R Re3 Rc8 Rf3 Kh5 g4 Kg5 g3 Nd8 g2 Bg7 Re3 h8Q Rf3 Rh3 g1R+ Rg3 Rg2 Qgh7 Rc2 Kg4 Rff2 Rgc3 Rf3 Bb2 Rd7 Bf8 Rc7 Q8g7 Ra7 Qgd7 Re6 Bd6+ Kf6 Bb8 Ree3 Rc7 Ke5 Q7d2 Qa2 Rc1 Qb1 Ba1 Rb2 Rc8+ Rc7 Ba8 Rh3 Q1e1 Rc2 Qcg8 Qc6 Qdd7 Qb6 Bd5 Kd4 Kf5 Rb7 Qe2 Ra7 Re1 Rhg3 Rb2 Rh3 R3c7 Rhg3 Qf3 Kd3 Rb3+ Kd2 Qe4 Rgf3 Rc1 Ke2 Bc6 Kf2 Re1 Kg2 Qd1 Kg1 Qed4 Kg2 Qgc4 Kg1 Qhg7 Kh1 Qh7+
3kb2K/2Q5/1r2Q3/p1b1P1N1/r1rNNR2/2nB1NB1/Q1nRn3/1B1B1nQ1 b - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Qf6 f4 Qg5 fxe5 Kf7 hxg5 Ke8 Kf2 a5 Ke3 h5 Kf4 c5 b4 h4 e4 g3 d4 h3 b6 c4 d6 h2 b5 g2 f6 c3 e6 c2 Kf5 Bh6 Kg6 Bf8 b7 Nc6 b8N Rh7 e7 Na7 d5 Ba6 b6 Rf7 b7 Rh7 e5 Be2 Ra2 Ba6 Bf4 c1R Nd2 Bc4 Nc6 Nh6 b8Q+ Nc8 f7+ Kd7 Ne4 Ra7 Bd3 Rh8 Rd2 Bb5 Qb6 Rc3 Nf3 g1N Bg3 Rc2 Ncd4 Bg7 f8N+ Ke8 Nfe6 Nh3 Rf1 Rf8 Kh7 h1N g6 Nf4 N6g5 Bf6 g7 Ne2 g8B Ra6 Bf7+ Kd7 Bg6 Na7 e8B+ Kc8 Qc6+ Kd8 d7 Be7 Qe6 Rf4 Kh8 Rb6 Bf5 Rc7 Bh5 Bc5 Qa1 Ng4 Qa2 Ne3 Bh7 Rcc6 B7g6 Kc7 Bb1 Nc2 d8Q+ Kb7 Qdg8 Kc7 Qg7+ Kd8 d6 Ba4 d7 Nb5 Nd6 Nbc3 Bd3 Rh4 Nde4 Rg4 Ng1 Rc7 Rf4 Rh4 N1f3 Rc8 Be1 Nhg3 Bf2 Nf1 Bg3 Bf8 Qgg6 Rc4 Qg7 Bc5 Qgg8+ Kc7 d8Q+ Kb7 Ng1 Rh1 N5h3 Ne1 Qa3 Nh2 Bbc2 Nc1 Bh4 Bd7 Bhe2 Be8 Ngf3 Rf1 Qg1 Rf2 Rd1 Nf1 Bb1 Rg2 Bg3 Rh2 Qdd5+ Kc7 Qb7+ Kd8 Qb3 Rg2 Nhg5 Rf2 Rd2 Rg2 Ra2 Rf2 Bd1 Rb2 Qbc6 N1e2 Qa3 R2b4 Rd2 Ra4 Qa2 Nc2 Qc7+
1B1qkqr1/r4NqP/1b2R1pB/5Q1b/2BN1Nr1/R2RBK2/1R4Q1/N1b5 b - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 cxd5 b4 exf5 b3 h5 Nd7 h6 Bb7 axb3 Ba6 b4 Nb8 b5 Bc8 g4 g6 Qb3 Nc6 Qd3 Nf6 Ne2 Nd4 Qb3 Nh5 Ng1 Ne6 Qd1 Neg7 hxg7 Nf4 Ra5 h5 Ra3 h4 Ra1 Nh5 gxh5 Bd7 Ra5 Be6 Ra1 Bc8 Ke2 e5 g8N a5 f4 c5 d4 c4 b4 h3 b6 e4 b5 h2 f6 e3 d6 c3 b7 c2 b8R a4 d7+ Kf7 f5 a3 d5 a2 h6 Ra6 d6 Rh7 b6 Ra4 b7 Qe8 d8R Ra7 d7 Ra5 Nd2 Bb4 Nh3 Bf8 Nf4 Ra6 Nb3 Rc6 Kf3 e2 Qd5+ Qe6 Ne7 e1B Bc4 Rc7 Be3 c1Q Nc6 Qd2 Ncd4 Rg7 h7 Bf2 Rhe1 h1R Qe4 Qa5 Qc2 Bg1 Qg2 Rg8 Re2 Bd6 Rb2 Qb4 Re1 a1Q Ra8 Qa7 b8B Rh4 Na1 Rg4 Ree2 Qab6 Ra3 Ra7 Re1 Bf8 Ree2 Bh6 Re1 Re8 Ree2 Kf8 f7 Qe5 Re1 Ke7 Ree2 Rg8 f8B+ Kf6 Bg7+ Ke7 Re1 Bg5 Bh6 Qg7 Ree2 Qbf6 Re1 Qff8 Ree2 Qe8 f6+ Kf8 f7 Ba6 Rc8 Qd8 Rc6 Bb5 Red2 Ba4 Re6 Bd1+ Nfe2 Qbe7 Rdd3 Qd6 Bf2 Bc1 Bfe3 Q8e7 d8N Qb4 Nb7 Qd8 Nd6 Bf2 Rf6 Ke7 f8Q+ Kd7 Nf7 Qc5 Qd6+ Ke8 Qd5 Qcf8 Rfa6 Bg3 Qf5 Bc7 Kf2 Bb6 Nf4 Rh4 Kg3 Bh5 Kf2 Rg4 Kf3 Bc7 Rf6 Bb6 Re6+
1R3R2/Q1N1Rn2/Bb5N/QQBn1b1K/rP1R3N/4knNQ/1n1p1b2/5b2 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 f5 gxf5 c5 dxc5 g4 f4 g3 h4 Ba6 e4 Ra7 e5 Qc8 b6 Rb7 f6 Qc6 f5 Kd8 f7 Qf6 exf6 Rc7 Ra2 Bc8 Ra1 Rc6 Qg4 Rd6 Qd1 Rd4 Ke2 Rg4 Ke1 Rg5 hxg5 Bb7 Bd2 Ba6 Bc1 Bc8 Ke2 h5 Kf3 e5 c4 d5 b4 Kd7 c6+ Kd6 b7 a4 g6 h4 Kg4 e4 c5+ Ke5 c7 e3 g7 Ke4 c6 d4 Ne2 d3 Nd2+ Kd5 Nf3 h3 Nh4 a3 Qa4 Be7 f8Q Ke4 f7 a2 Qd8 h2 f8N g2 Ne6 g1N f6 Nh6+ Kh5 Bc5 g8N Nd7 b8Q Nb6 f7 Nd5 Qe7 Bd7 c8Q Nf3 c7 Rh7 Rb1 a1B f8R Bad4 Rb2 Rf7 Rd2 Rf6 Qb6 Nf7 Nh6 Rg6 Rg1 h1B Qbb8 Rg2 Qa5 Rh2 Qee8 Bg2 Qba7 Bb6 Bb2 Bdc5 Bd4 Rh1 Rd1 d2 Re1 Bh3 Rg4+ Kd3 Ng3+ e2 Re4 Bb5 Qcd7 Ba6 c8R Rg1 Bh8 Bf2 Nc7 Rh1 Rd8 Bc8 Qg4 Bf5 Rb8 Rg1 Re7 Rh1 Be5 Rg1 Rc1 Ke3 Rc4 e1N Rd4 Nd3 Qea4 Nb2 Ba6 Re1 Q4b5 Bf1 Qh3 Ra1 Bd6+ N3e5 Ne6 Nf3 Bc5 Ra4 Nc7+
2Kn1B2/3NN3/2Q1n2Q/b3RQ2/q2p4/BB6/r1NpBrP1/kNQrn2R b - - 0 1 illegal: Other
N1NR4/1B1b1NB1/1B2QP2/kpn5/2QB4/qRn4N/1pQrQ2K/1rq1q3 b - - 0 1 illegal: Other
R1BB3K/4QR2/pQN1p1Q1/5P2/b1Nn1b2/3q2Q1/2q1N1k1/qNnnRR2 b - - 0 1 illegal: No possible last move, all moves rejected
1nQ1NRqr/3R1r1Q/1p2K2p/Nk1r3N/Q2PN1BR/2n3Q1/3Br3/2r4R b - - 0 1 legal: proof: f4 a5 e4 f5 exf5 g5 c4 d5 cxd5 g4 b4 Kf7 bxa5 Be6 h3 Bh6 f6 Ke8 g3 Bf7 f5 Bf4 gxf4 g3 Qf3 Bh5 Qd1 Bg4 hxg4 Ra7 Be2 Ra6 Bf1 Ra8 Ke2 Kd7 Kd3 c5 Kc4 e5 a4 e4 d4 e3 d6 Kc6 g5 e2 g6 e1R f7 b6 f8Q h6 d7 g2 g7 Qf6 d8N+ Kd7 Kd5 c4 a6 c3 a7 c2 a5 Re3 a6 Qe7 f6 Kc7 f7 Rf3 f5 Qd7+ Qd6+ Kc8 f8R Qc6+ Ke6 Rb3 f6 Rh7 f7 Qa4 Rh4 Ra3 Nh3 g1R Nf4 Qc6 Bh3 Rg2 Nd2 Re2+ Ne4 Qb5 Nh5 Re1 Bg4 Rf3 Qg3 Rh8 Bd2 c1R Qa4 Qg5 Nb7+ Qd8 Na5 Nf6 g8Q Rff1 Qh7 Re2 Rg8 Rff2 f8R Nd5 Rg7 Nc3 Rb7 Rf7 Rd7 Nc6 Rb1 Rb8 a8N Rb7 a7 Nb8 Re7 Rd7 Nc7 Rd5 a8Q Qe8 Rg8 Qf8 Ne8 Qg7 Rf8 Qg8 Qa2 Rc2 Rbh1 Rc1 Nb3 Kd8 Q8a4 Kc8 Qc2 Kd8 Rd7+ Kc8 Nc7+ Kb7 Na5+ Ka7 Ne8+ Ka6 Qaa2 Kb5 Qa3 Nb1 Qc8 Nc3 Qa4+
2RnQ3/p2B3P/BRQ2rrN/1p1KN1n1/3R1b1N/5RB1/k3r1nB/5N1r b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 d4 a4 d3 a5 Qd6 cxd3 Nc6 d4 Nb8 d5 Qd8 d6 c5 b3 b5 Qg4 c4 Qf3 c3 Qd1 Qb6 axb6 Bb7 Bh3 Bd5 Bf1 Bc4 bxc4 Rh6 Nf3 Rh7 Ng1 Rh8 Ke2 Kf7 Kf3 e5 Ke4 g5 d4 g4 h4 c2 f4 g3 f6 Ke6 c5 g2 h6 Nc6 f5+ Kd7 h7 Be7 f7 Bd8 f8Q Nce7 h5 Kc6 d5+ Kd7 c6+ Kc8 f6 Nh6 b7+ Kb8 d7 Kc7 b8B+ Kb6 d6 Kc5 c7 Kb4 c8B Kb3 f7 Neg8 Ra6 Ng4 h6 Bb6 d8N Bc5 d7 Bf2 Nc6 Be3 d8N Bg5 Nd2+ Kc3 Kd5 e4 Rb6 e3 Bh2 e2 Ne5 e1N Ba6 Nf2 Qe8 Ne4 f8R Be3 Ngf3 g1R Bh3 Ng2 Nf1 Kb3 Ndf7 Bf4 Bd7 Ka2 Nh4 Ng5 Qf3 Rc8 Be3 c1R Bf2 R8c6 Bfg3 Rf6 Qc3 Rc2 Qcc8 Ne1 Qc6 Rgg2 Rg1 Rge2 Rg2 Rg6 Rf2 Ng2 Rf3 Rf2 Rd3 Rce2 Rd4 Ne7+ Kc5 Rhg8 h8R Rf6 h7 Rgg6 Rhg8 Re1 Nh6 Rfe2 Qc7 Nc6 Kd5 Nd8 Qc6 Re6 Rf5 Ref6 Rh8 Bc1 Rf3 Bf4 Nd2 Rg1 Nf1 Rh1 Qf7 Nde6 Rc8 Nd8 Qe8
2R5/bR2R1B1/NpnpK3/1RQ3B1/1b1rQ2r/N5N1/NpnP1B2/k1q4B b - - 0 1 illegal: Other
Q2B3k/3rBR2/b1B5/1Q1N1R1p/3P1r2/1pK2pBn/rQN1Q1b1/4N1nN b - - 0 1 illegal: No proof kernel
NQ2n3/2Q3p1/K1kpN2q/4BQnR/1Q5P/Rr1n3B/5p1r/1NrRR1N1 b - - 0 1 legal: proof: e4 c5 d4 b5 dxc5 h5 a4 h4 axb5 h3 e5 Ba6 gxh3 Qc8 h4 Qd8 h5 Bc8 f3 d6 f4 Bd7 e6 Qb6 exd7+ Kd8 Ke2 e5 Kf2 e4 Ra4 Be7 Ra1 Bf6 Ke2 Be5 fxe5 Ke7 Ke1 Qd8 Kd2 f5 Kc3 a5 Kc4 f4 b4 f3 h4 e3 b6 e2 Kb5 e1R c4 a4 e6 f2 b7 a3 h6 a2 h7 Re3 c6 Qe8 d8N Re1 c5 Qd7 Qc2 Qc8 c7 Na6 b8Q Qd7+ c6 Nh6 c8N+ Ke8 e7 Nc5 Bf4 Rc1 Bh3 Na6 Ne6 Qb7+ Nb6+ Qc8 c7 Nf7 Qf5 Ng5 Be5 Ra7 Na8 Kd7 Ka5 Kc6 e8R Rf8 h8R Rb7 Re7 Qd8 Re8 Qf6 c8Q+ Nc7 Rh5 Qh6 Qd8 Rb6 Re7 Ne8 b5+ Kd5 Ra7 Rb7 b6 Kc6 Ka6 Rff7 Qg4 Rf3 Qf5 Rg3 Qe7 Rg2 Qed8 Rh2 Qdc8+ Rc7 b7 Rc3 Qd8 Rc8 Qa5 Rb3 Qb4 Rc7 Qd8 Rc8 b8Q Rc7 Na3 Rc8 Rb1 a1N Rd1 Nc2 Nb1 Ne1 Qda5 Nd3 Qac7+ Kd5 Qcf7 Rcc3 Qfc7 Rc5 Kb7 Rc1 Ra3 Nh7 Ka6 Ng5 Ne2 Rc5 Rhe1 Rc1 Qca7 Kc6 Ng1 Nf7 Qe7 Ng5 Qec7+
2b1bNnr/1R3Q1B/nk1qN1N1/1r2N3/r5BR/7q/Pbq2RB1/2RQB1K1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 Kd7 f4 c5 Kf2 Kc7 d4 h5 g6 e5 g5 b5 g7 c4 g6 h4 d6+ Kc6 a6 c3 f6 h3 d5+ Kc5 d7 b4 f7 b3 a7 c2 f5 b2 d6 h2 f6 e4 Ne2 Kb5 Na3+ Kc6 Bd2 b1R Bg2 c1Q Nf4 Rb6 Nc4 Rh5 Ne5+ Kb7 Be1 Qe7 d8R Nh6 g8Q Ra6 g7 Rb6 d7 Na6 Nfg6 Rb5 Qh7 Qd6 g8B Be7 f8N Kb6 f7 e3+ Kf1 Qca3 Rc1 Bf6 Ne6 Bg7 f8N e2+ Kf2 Bf6 Qf7 Qh3 Bh7 Ng8 Bf3 Rh6 Bg4 Rh5 Rf1 h1B Kg1 Bc6 Rf2 Bh8 Re8 Bg7 d8R B6d7 Nd3 Bb2 Re7 Be8 Nde5 Rh4 Bf3 Rb8 a8B Rhb4 Bg4 Ra4 Bg2 Ra8 Bc3 Rb8 Rdd7 Ra8 Rc7 Rb8 Rc4 e1Q+ Bf1 Qed2 Bg2 Qe2 Be1 Qc2 Rb4 Ra8 Rb7+ Ka5 Ng5 Bcd7 Qdd5 Ne7 Bf5 Rd8 Qd3 Bc8 Nge6 Bc6 Nfd7 Rh8 Qd1 Ng8 Ndf8 Be8 Rh4+ Rab4 Rd7 Kb6 Bg4 Ra4 Rb7+
1K1Rq2b/1NNQ2Qn/1kb4n/1q3r1N/1n2Rr2/b2N2P1/BQ5B/1B1QBq2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 h5 Kd4 c5+ Ke5 Kc7 f4 a5 b4 e6 d4 c4 f6 h4 f7 h3 f5 h2 b6+ Kb7 d6 c3 b5 c2 d5 a4 g6 a3 d7 a2 f6 Qc7+ d6 Bh6 f8Q Ra5 d8Q Qd7 f7 Rh7 g7 Ra8 Bd3 Ra6 Nf3 Qc7 Re1 h1Q Na3 Qd7 Re4 Qe7 d7 Qh3 Bd2 c1B Bb1 Qeh4 Kd6 e5 Ne1 Ra8 Nd3 Qh5 Be1 Ra4 Qfe7 Na6 f8N Nb4 Ne6 Qe8 Nef4 Qf5 Nh5 Bhd2 Qg5 Nh6 g8B Rf7 Qg7 Bc3 Qe7 Qf1 Qe6 Rf5 d8N+ Kb8 b7 Ka7 Kc7 Bd7 Bf7 Bc6 b6+ Ka6 Nb5 Ba3 b8B Qe2 Rd4 e4 b7 e3 Re4 Ka5 Kc8 Kb6 Qd7 Qb2 Bf4 e2 Bh2 Be5 g3 Bf6 Qg4 Bh8 Kb8 Qbe5+ Nc7 Qb5 Bc3 e1N Qg7 Nf3 Be1 Rd5 Kc8 Rf5 b8Q+ Ka5 Qb7 Ng5 Kb8 Nh7 Qb2 Qb6 Be6 Qb5 Qdg7 Qd5 Qc8 Kb6 Qcd7 Qb5 Bg8 Qg6 Nb7 Qe6 Bc2 Qf7 Rc1 a1Q Bb1 Qe6 Rcc4 Qf7 Re8 Qe6 Rd8 Qe8 Bc2 Qc1 Re4 Qf4 Ba2 Qf1 Rd4 Nd5 Rg4 Raf4 Bcb1 Nb4 Rh4 Rf3 Rc4 R3f4 Re4
1Q1Bn1qR/2B4r/2Kn1b2/q5n1/B1b4R/1Q3P1N/1bRN2Q1/Q1qrkRB1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 d4+ Kb4 h4 g5 h6 c5 f6 a5 h5 e5 b6 c4 h7 g4 d6 a4 Kd5 a3 b7 c3 f7 g3 d7 a2 h6 c2 Bb5 e4 Rh4 e3 Nh3 g2 Qf3 g1B Nd2 e2 Qg2 e1Q Ba4 Na6 Kc6 Bg7 f8R Nc5 b8Q+ Nb7 d5+ Bd4 b3 Kc3 d6 Nf6 b4 Ne8 b5 Bf6 b6 Qe6 Rb1 a1N Rb2 Qg8 f3 Nb3 Ra2 N7c5 b7 Qa5 d8B Ne6 d7 Bgd4 Bc7 Ng5 d8B Nc5 Ba3 Nce4 Bc5 Bde5 Bg1 c1Q Rf7 Bg4 Rc2+ Kd3 Re7 N4d6 Re6 Ba1 Re2 Bab2 Rf2 Ke3 Qc8 Ra7 b8Q Be6 Qcb7 Bc4 Qb5 Qf7 Q5b7 Rf8 h8Q Qg8 h7 Rf7 Qb4 Rd7 Qg7 Kd3 h8R Rb7 Qf8 Rh7 Qh6 Rb5 Qg7 Rd5 Qf7 Ke3 Qa3+ Rd3 Qa1 Rd4 Nb3 Rd1 Nd2 Bf1 Qg4 Be2 Qfb3+ Bd3 Rf1+ Ke2 Rf2+ Ke1 Qg2 Bc4 Rf1+
n2q3n/1k6/N1bqQr2/3RnR2/2B1QRPr/N2b2Qq/1N3B2/Q1K1RNb1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 Kc7 d4 a5 Kd2 e5 g6 h5 f6 e4 f7 a4 d6+ Kb6 g7 h4 d5 a3 f5 h3 d7 h2 d6 c4 f6 a2 Na3 Ka7 b6+ Ka6 b5+ Kb7 Nf3 Nh6 g8Q Qe8 d8Q Bf5 d7 Bh7 Qe7 Bf5 d8R+ Nd7 Bb2 c3+ Kc1 c2 Bd4 e3 Bc4 e2 Rf1 e1N Bf2 h1B Nh2 Bc6 Qe4 Bb4 f8R Bc3 Qge6 Nf3 f7 Bd4 Re1 Ra7 Nf1 Ra6 Rb1 Qe7 Rb4 Nfe5 Ra4 Bc5 Qdd4 Qd6 Qa1 Nf6 Ra5 Nd5 Rd7+ Nc7 Rdd8 Qe7 Rd5 Qd8 Ra4 Na8 Ra5 Kb8 b7 Kc7 b8N Kb7 b6 Bg6 Qb1 a1Q Rb5 Qc3 Qa1 Qh3 Ra5 Ra7 Na6 Bf5 Nb4 Ra6 Nd3 Bh7 Nb2 Qd6 Bh4 Bg1 Bf2 Bg6 Rg8 Rh7 f8Q Nhf7 Ra4 Nh8 Qff3 Rh5 Rf8 Rh4 Qg3 Bf5 Qef3 Bd3 Rf5 Kb8 b7 Kc7 b8N Kb7 Qe4 Rb6 Kd2 Ra6 Kc3 c1Q+ Kb3 Qh6 Ka2 Rb6 Na6 Qhf8 Rb4 Qfd8 Ra4 Be2 Kb1 Bd3+ Kc1 Nhg6 Qd7+ Q6c7 Ba2 Nh8 Qef4 Bcb5+ Rc4 Rg6 Qe6 Qcd6 Rce4 Be8 Bc4 Bc6 Qff3 Rgh6 Ref4 Rf6 Qe4
2B3r1/n1B1R3/2NNb1Pn/1QKRb3/1rNN2k1/2rb1qR1/2n3BQ/4BRq1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 a5 Kd4 h5 g4 a4 f4 c6 b4 e6 g6+ Kf6 g7 h4 d6 h3 g5+ Kf7 b6 a3 d7 a2 b7 h2 f6 Kg6 f7 Kf5 g6 Be7 f8R+ Bf6+ Kc5 e5 d4 e4 b5 e3 d5 e2 d6 e1R b6 Ra4 Ne2 Rh5 Qd5+ Kg4 f5 Rd1 Nd4 Ra3 Re8 Be5 f6 Re1 f7 Qh4 d8R Rf3 f8B Qf6 d7 Rd1 Bf4 Rh6 Na3 Rh8 Re7 Rh4 Nc4 Nh6 g8B Rc3 Bg2 Qf7 Bd2 Qf3 Be1 Rdd3 Rc1 a1N Rf1 h1B Be6+ Qf5 Rf3 Nc2 Rh3 Rd1 Ra1 Rb1 Bg7 Rb4 Rd1 Rh5 Rf8 Rh4 d8N Rh5 Nf7 Bd7 Bf1 Be4 Nd6 Bd3 Qh1 Bc8 Qh2 Bd7 Bg2 Bc8 Bed5 Be6 Bh8 Qe4 Rf1 Qf3 Bf6 Rf5 Bfh4 Rf8 Bhg3 Bef5 Be6 Rg8 Bc8 Be6 Ne4 Bg7 Bc7 Bh8 Kd6 c5 Rd2 Nc6 b8N Bf6 b7 Na7 Nbc6 Bg7 b8Q Bh8 Nb2 c4 Kc5 Be5 Qb5 Ne3 Nb3 Bc2 Rh1 Rd3 Nd6 c3 Bg3 Bb1 Rdd1 c2 Nbc4 Rc3 Rd5 c1Q Nbd4 Bd3 Bf2 Qf1 Be1 Nc2 Rg1 Q1f2 Rf1 Qg1 Rg3+
r1B3b1/RNqR2Q1/4b1Bn/Q1r1P1N1/1nQ2r1B/r5b1/1Nn1B3/N1Q2k1K b - - 0 1 illegal: No possible last move, all moves rejected
Q1r1r3/BQ2Q1N1/q1Q5/3r2RB/kn1N1K2/Nr4P1/nBBr2Nq/b3Rb2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 h5 d4 c5 b4 a5 g3 e5 g6 a4 g7 h4 d6 a3 d5 c4 f6 a2 b6 h3 f7 c3 b7 c2 b5 h2 b6 e4+ Kf4 e3 Nf3 e2 Nd4 e1Q Bb2 c1R Na3 Rh5 Qf3 Rc2 Bd3 Re2 Bc2 Nf6 g8B Qg1 Re1 Bg7 f8Q a1R Bf7 Rh8 Bh5 Nc6 b8Q Rh6 b7 Re7 Re5 Rd1 Rg5 Qg2 Re1 h1R Qa7 Qa5 b8B+ Bb7 Qb6 Qa6 Ba7 Ree8 Qe7+ Kc8 Qb4 Rh2 d7+ Kc7 Qbc5 Rac8 d8N+ Nd7 Qb5 Nb4 Qbc5+ Bc6 N8e6+ Kb7 d6 Na2 Qb3+ Bb5 f3 Bf6 Ng7 Rd3 Qbf7 Rb3 Qc3 Bf1 Qc5 Qb6 Qc6+ Ka6 Qfd5 Ne5 d7 Qh3 d8N Rd2 N8e6 Qh2 Qdd7 Ka5 Qdb7 Qa6 Kf5 Qh4 Nf4 Rhh8 Ng2 Qh2 f4 Nd3 Ke4+ Be5 f5 Ndb4 f6 Red8 f7 Rhe8 f8Q Rd5 Qf4 Bf6 Qfb8 Be5 Q8a8 Bf6 Ndb5 Ka4 Kf4 Bd4 Bc1 Ba1 Bb2 Rc5 Nd4+ Rb5 Qcf6 Rd5 Qfc6+
QBN5/2q2n2/R3Nr1R/1Rr5/1Kb1Qbrn/r1P2B1B/qkR1N1N1/2r2B2 b - - 0 1 illegal: No possible last move, all moves rejected
NQb3rq/3N1B2/3Qr2B/QPrQ1B1r/RNq4N/bB6/K2Rr3/2k2n1n b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 d4 h5 Kd2 c5 Kc2 a4 Kb2 c4 g6+ Kf6 g5+ Ke7 d6+ Kd7 f6 Ke6 d7 Kd5 f5 Ke4 b6 h4 g7 a3+ Ka2 h3 b7 c3 b5 h2 f7 c2 d5 Nh6 g8B Ra6 g6 Ra7 d6 Qg5 d8Q Ng4 f6 Nc6 b8Q Qf4 d7 Nf2 g7 Na5 Nd2+ Ke3 Ngf3 e4 Bd3 Nc4 Qa5 Ra6 d8N Re6 Nh4 Rh5 Rg1 h1R Rg2 Rg1 Nc6 Nh1 Nb4 Bd6 f8N Bc5 Kb3 a2 Bf7 Qc7 g8B Qc6 Ba3 c1R Nd7 Rc2 Bc1 Bd6 Rb1 a1Q Rg4 Qe5 Rb2 Rc3+ Ka2 Bc5 Nb1+ Nd2 Na3 Qcd5+ Qb3 Qc4 Bc2 Ke2 Rf4 e3 Bf5 Ke1 Rg4 Nf1 Rd2 e2 Rgd4 Qcd5 Nc4 Rg7 Ncb6 Qc4 Na8 Bf8 Nc6 Ba3 Nb4 Rg2 Rc2 Qh2 Bh6 Rgg3 Re4 Kd1 Rd2+ Kc1 Rf4 e1R Qd6 Qce2 Qbd5 Rc5 Qb8 Qg1 Bgh7 Ne3 Bc2 Rg8 Bb3 Re7 Be8 Qg6 f7 Qed3 f8Q Qg7 Nc2 Re6 Bf5 Re2 Qfd6 Nf1 Ra4 Qh8 Nb4 Qc4 Bf7
3r3b/B1KBnQ2/2nnr1q1/N1R2RR1/k4Q2/NnN3R1/2P3q1/2NqB1Bb b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kd3 Kd7 Kd4 g5 Ke5 a5 f4 e6 b4 g4 h4 a4 f6 a3 f5 d4 h6 g3 c6+ Kc7 h5 Kb6 h7 d3 f7 g2 h6 a2 c7 d2 f6 Qd7 Na3 Be7 f8R Bb7 c8N+ Kc7 f7 Bh4 b6+ Kc6 b5+ Kc5 Rh3 Kb4 Rg3 Ba6 b7 Nf6 b6 Nd5 Qh5 d1Q Nd6 Nc7 Bd2+ Ka4 Be1 Qc8 Ne4 Bd3 Kd6 e5 Ne2 g1Q Bh3 Nd5 Bd7+ Nc6 b8N Qa6 b7 Qg2 Nc1 Ne7 Kc7 Bf6 Qg5 Be2 Qf4 Bf3 Rfg8 Ra7 R8g5 Rd8 f8Q Bh8 Q8f7 Qad3 Rb1 a1N Rb5 Nb3 Rc5 Ra6 Rf5 Qge2 Rgg5 Bh1 Rg3 Qg2 Rfg5 Bg7 h8R Bf6 Rhg8 Bh8 h7 Rb6 Rf5 Ra6 Nf2+ e4 R8g5 Rb6 Qd2 e3 Ne4 e2 Qf4 Bf6 h8B Qa6 Bf2 e1N Bg1 Nd3 Bg7 Ba1 Bc3 Nb2 Be1 Nc4 Be6 Na7 Nc6 Nd6 b8B Bh8 Na5 Nac6 Bd7 Qad3 Rh3 Qdg3 Ba7 Qgg4 Re3 Qh5 Rf3 Qg6 Rfg3 Rb5 Rcc3 Re5 Rc5 Re6 Nc3+
6bB/7n/2N1b1Qr/4b1k1/1RqRr2R/B1q1r1PB/RQ1Q2BK/rn2N1Q1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 f4 e5 Kf2 h5 Kg3 a5 d4 c5 d6 h4+ Kh2 a4 d7 c4 g3 a3 b6 e4 g6+ Kf6 b5 a2 d5 h3 d6 c3 b7 c2 g7 e3 b6 e2 Bb2+ Kf7 f6 Kg6 f5+ Kh5 f7 c1R f6 Ra5 Nd2 Qe8 d8Q Kg6 d7 e1R Bg2 Ra8 Nc4 Kh6 Nf3 Re4 Nce5 Ne7 g8B Bg7 f8Q Ra3 f7 Nd5 Ne1 Rae3 Qd6+ Qe6 f8B Nc3 Nc6 Nb1 Bf6 Qd5 Be6 Qc4 Qe8 Rh7 d8R Nd7 b8R Rh8 Be5 Nf6 b7 Nh7 Q6d2 Kg5 Rd4 Bd7 Bg4 Be6 Ba3 Bf6 Rc8 Bg7 b8Q Bf6 Qbb2 Bg8 Bc7 Be5 Rb8 Be6 Rb4 Bg8 Rf1 Be6 Rf4 Bg8 Kh1 h2 B4h3 Be6 Rh4 Bg8 Bf1 Be6 Kg2 h1B+ Kh2 Bf3 Bb8 Bg8 Qf7 Bg4 Bfg2 Be6 Bd6 Nf6 Bf8 Rh6 Bg7 Nh7 Bh8 Nc3 Rb1 a1Q Qe8 Qaa2 Qf7 Qab3 Ra1 Nb1 Ra2 Qbc3 Qdf2 Nd2 Qg1 Ra1 Qdc2 Nb1 Qd2 Bd6 Qe8 Be5 Qg6+
1r1Rbb1n/1N2k1n1/qr1q1N1Q/3rR3/3qB1K1/B3P2N/4B1B1/Q1Q1qQN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 c5 Kg3 a5 d4 h5 b4 f5 e3 c4 d6 c3 d7+ Kf7 e6+ Ke7 g6 c2 g7 a4 d5 a3 b6 a2 d6+ Kf6 e7 Kf7 e8N Be7 b5 Ra6 b7 Rh7 b6 Qc7 d8Q Bf6 Nc3 Nd7 b8Q Qc4 b7 Ne7 g8B+ Kf8 Bd5 Bg7 Be2 Qc6 Qa7 Rh8 b8Q Ng6 Qb5 Nf6 d7 Rb6 Ne4 f4+ Kh3 f3 g4 h4 g5 f2 Ba3+ Qd6 Qc1 f1R Nf2 Rd1 Bg2 Nh5 Kg4 h3 Nf6+ Kf7 Qaa5 h2 Nfh3 Rd5 Qf8+ Ke6 Rb1 a1Q Qc4 Qae5 Rb5 Qd4+ Be4 Rg8 Qc6 Nh8 g6 Bh6 g7 Ba6 Qf1 c1Q Qc7 Qcb2 Qcc1 Qa2 Qac3 Bb7 Q3a1 Bc6 Ra5 Qac4 Ra8 Qa6 d8N+ Ke5 Rb8 Be8 Nb7 Ke6 Rd8 Q4b4 Nd7 Qd4 Q8f4 Ke7 Nf6 Rf8 g8B Ng7 Bgh7 Rg8 Bg2 Rf8 Nf3 Rg8 Rg1 h1Q Be4 Qh2 Rh1 Qg1 Rh2 Qf2 Nfg1 Qe1 Qg5 Nf5 Rh1 Bf8 Qg6 Ng7 Qh6 Rb1 Nf2 Rb2 Rh5 Rb6 Re5+ Ne6+ Kf3 Bc6 Bg6 Bg7 Rc8 Rd8 Rb8 Bf8 Nfh3 Be8 Be4 Rc8 Rg5 Ng7 Kg4 Rc7 Rd8 Rc8 Rf5 Rb8 Re5+
1R5q/1N1B1b1b/Q3R3/2qRB1qn/4kN1Q/2nP1N1N/q1Q3r1/r1QRbK2 b - - 0 1 illegal: No possible last move, all moves rejected
4N3/rk2R3/3Nn1B1/r1B1qPb1/3RRQBn/1rnr1N2/N1R1BQ1q/3bK3 b - - 0 1 illegal: No possible last move
1BrR3N/q1qN2RQ/Pqk1RK2/2n1Q1Nr/1n1Qb1q1/b7/1Nb2Q2/5BR1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 g5 Ke4 b5 Ke5 c5 f4 c4 h4 g4 a4 c3 d4 g3 a6 c2 a7 b4 f6 b3 f5 e6 f7 g2 f6 b2 a5 Rh6 d6 Rg6 d5 Bb7 a6 Qb6 h6 Qc6 h7 Bh6 f8N+ Ke8 h8N Rg7 d7+ Kd8 h5 Kc7 d8R Bd2 f7 Bb4 d6+ Kb6 h6 Rh7 d7 Ne7 Qd6 Ba3 Nh3 g1Q Nc3 b1B Ng5 Nd5 Bf4 c1Q Nd1 Nb4 Nb2 Bc2 Kf6 Qg4 Rg1 e5 Rb1 Qe3 Re1 e4 Qe6 Kc5 Bg3 Qc7 Qe5+ Kc6 Bh2 Rg7 h7 Qeb6 Re2 e3 Reg2 e2 Re8 e1Q d8R Qgh4 Nd7 Qc4 f8Q Qg4 Qd4 Re7 Bd6 Re3 Re6 Rh3 Qh6 Qe3 Qh4 Nd3 Qf2 Rh5 Be5+ Kb5 Bf4 Nc6 Rg3 Rc8 a8Q Nb4 Qa7 Be4 Bd6 Qc4 Bb8 Nc5 Qc7 Qa7 Qce5 Qb3 Ng6 Qe3 h8Q Qb3 Qh7 Qe3 Re7 Kc6 Nh8 Qeb3 Re3 Qcc3 Re1 Qcg3 Rg7 Qbe3 Qef5 Qgc7 Qfe5 Bd5 Qee4 Nb3 Qdd2 Qeb6 Qdd4 Nc5 Qef4 Bf3 Ree7 Bg2 Qfe5 Bge4 Re6+
rB4R1/Q3P1qR/1q1r1Q2/1b5B/Q1qR4/B2nbNk1/5RBq/1QnK1Nn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 e4 f5 b6 c5 b7 a4 h6 a3 b5 c4 h5 c3 d6+ Ke6 b6 a2 h7 c2 d5+ Kd7 h6 g4 e6+ Ke8 d7+ Ke7 d6+ Kf6 e7 Ke5 e8B f4 Bg2 f3 Nd2 Kf4 e5 g3 e6 Nf6 e7 Ng4 Ba3 c1N Bh5 Na6 b8B Ne5 b7 Qb6 d8R Bd7 Qa4+ Nb4 Kd1 f2 Ngf3 Bb5 d7 Rg8 h8R Rg6 h7 Rd6 Rh2 Bh6 Rhg8 Bg5 Rb1 a1Q h8Q Bh6 Rb2 f1Q+ Ne1 Qd3 Nf3 Qc4 Ra2 Nbd3 Qf6+ Ke3 Rh4 Kf2 Rd4 Be3 Rde8 Qa6 d8Q Qb6 Qc7 Qac3 Rh8 Qb2 Reg8 Qbc3 Bf1 g2 Rh7 g1Q Rb2 Qg7 Bg2 Kg3 Qc5 Q3b3+ Rc2 Qc7 Qca7 Qa2 Rb2 Qb6 Nb1 Ng4 Bc7 Bc6 b8Q Qba6 Bf1 Bd7 Qbb5 Qb6 Bb8 Bc6 Qbb4 Bb5 Rh2 Qg2 Nbd2 Qh1 Qb1 Nge5 Ne1 Qg1 Rf2 Qh2 Bh3 Nf3 Bg2 Ng1 Nef3 Qg4 Qb2 Qg5 Qb1 Qg7 Nf1+
3N1nB1/q1Q1P1b1/1Q1Rr2R/2Rb4/2rNb3/N2nk1Bq/n6Q/RN1K1Qn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 e4 g5 b4 a5 h4 f5 e6 Kf6 e7 c5 e8N+ Kf7 b6 g4 e5 g3 b7 c4 h6 Kg6 e6 c3 h5+ Kh7 d6 g2 d7 f4 b5 a4 b6 a3 e7 c2 d5 f3 d6 a2 Bc4 Nc6 b8Q Bb7 Bf4 c1N Bg3 Nb4 Nc7 Ra4 Nb5 Nf6 Ne2 g1N Qc7 Bg7 Ned4 Qc8 d8R Nd7 N5a3 Be4 b7 Nf8 b8Q Qh3 d7 f2+ Kd2 f1B Qbb6 Bfg2 Qf1 Bd5 Kd1 Nbd3 Rh2 Bge4 Rc2 Rg8 Bb3 Rc4 Rc3 Rc6 Rc5 Re6 Bc4 Bh8 Bb3 Rg4 Bc4 Bg7 Bb3 Rf4 Bc4 Kg8 h7+ Kf7 h8R Kf6 h6 Kg5 h7 Rg4 Rc8 Rf4 d8N Rh4 Rc6 Rf4 Rd6 Rg4 Bf2 Kf4 Bg3+ Ke3 Qca7 Rf4 Rc5 Rf2 Bb3 Rc2 Qac7 Rc3 Rg8 Rc4 h8Q Bf6 Rg6 Bg7 Nc3 Qg2 Qh2 Qh3 Rb1 a1Q Rh6 Qa2 Ra1 Qf2 Ncb1 Qa2 Nab5 Qa7 N5a3 Na2 Ba4 Qb7 Be8 Qa8 Bf7 Qa7 Bg8
1qk4N/3P1R1Q/nB2QbKR/2Q1QNn1/2N3N1/1Brq4/3b2rB/rr1b1B2 b - - 0 1 illegal: No possible last move, all moves rejected
1B2rn2/4P1n1/RKn2q1R/6BQ/B1b1Br1Q/1nn1R2R/1Q5N/k1NQb1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 d4 a5 h4 f5 b4 g5 h6 c4 d6 Ke6 b6 Kd5 e6 c3 h5 Kc4 e7 g4 e8B a4 h7 g3 d7 a3 b5 g2 b7 c2 d5 Kb3 Kd4 a2 e4 f4 b6 f3 e5 f2 d6 Qc7 d8Q Nf6 e6 Ra3 h6 Rg8 h8R Nh7 d7 Ra8 Nd2+ Ka4 Nb3 Qc6 Bd3 f1N Qh4 Rg4+ Be4 Rf4 d8R Ng3 Nf3 g1N Nh2 Bb4 e7 Nf8 h7 Be6 Be3 Ka3 Nc1 Kb2 Bd7 Rf1 Bg5 Bc4 Rc8 Qg6 Ba4 Be1 Kc5 Nc6 b8Q Qf6 b7 Nh5 Kb6 Rf4 Rd8 Ng7 Rd3 Nf3 Qe8 Ng1 Re3 Rb8 Qeh5 Re8 Nb3 c1N b8B Nce2 Nc1 Rg4 Nf3 Rf4 Rh3 Nc3 Nh2 Rc8 Rg8 Re8 h8Q Nf5 Rg6 Ng7 Rh6 Nfe6 Nb3 Nf8 Rc1 a1N Rb1+ Ka3 Nc1 Nb3 Ra1+ Kb2 Bb5 Bf7 Ra6 Bc4 Ba4 Ka1 Qg8 Be2 Qgd5 Bf1 Q5d2 Bc4 Qb2+
3Q1b2/Bn1RNn2/2b4r/4RPNN/B1KBrQ2/3nb1QQ/2b5/1kn1N1Bq b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 b4 Ke5 f4+ Kd6 g4 e5 f6 c5 b6 h5 b7 a5 b5 h4 g6 a4 f7 h3 g7 e4+ Kc4 e3 d4 a3 b6 e2 g5 e1B g6 a2 Qh5 h2 Nc3 Qf6 Ne4+ Ke7 d6+ Ke6 d7 Qe7 d8Q Rh7 Bb2 Ra7 Nf3 Na6 b8Q Bf2 b7 Bg1 Neg5+ Kf5 d5 Nh6 g8N Be3 g7 Qe4+ Bd4 Nb4 d6 Nd3 Re1 a1N d7 Nb3 Nf6 Ra8 Rg1 h1B g8N Ra2 Qdc7 Re2 d8Q Bd7 Qh2 Ba4 Nh5 Rh8 Rg4 Qc6 Qh3 Na5+ Kc3 c4 Qcd6 Be7 f8B Nf7 Q6c7 Ba3 Bfc5 Bc2 Rd1 Rh6 Ne1 Qf3 Bg2 Qf1 Bc6 Bg2 Bb5 Bc6 Ba4 Qh1 Bb6 Bf8 Qcd6 Qf3 Qbc7 Qh1 b8B Nb7 B8a7 Bc1 Bg1 Re4 Bbd4 Be3 Rd2 Nf2 Kb4 c3 Kc4 Nd3 Qa3 Bb1 Qg3 c2 Rh4 c1N Rhh2 Re8 Rhe2 Bc2 Rd1 Bf2 Re7 Be3 Rd7 Ree6 Rd2 Re8 Re2 Re4 Qad6 Re7 Rh2 Nde5+ Kc3 Bb3 Qh4 Bf2 Rg2 Ree6 Rg4 Be3 Qh3 Re8 Ne6 Ke4 Rg5 Ng4 Rc5 Nf2 f5 Re7 Qdg3 Bd1 Ng2 Re8 Kb4 Kd3 Ng5 Re4 Ne7 Bb3 Rb5 Kc2 Qcf4 Kb1 Re5 Bc2 Ne1 Nfd3+ Kc4
Q3qnKb/BBQ2BQ1/1n2QR1r/1R1RNb2/1R6/2r5/rp3P1n/2kb1NB1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 c5 Kf4 b5 Ke5 h5 a4 e6 g4 c4 d4 b4 a6 c3 f6 Kg6 a7 h4 d6 c2 d7 b3 a5 b2 f7 h3 a6 h2 d5 Rh5 d6 Bh6 f8R Rh3 Nd2 Ne7 Ngf3 Qb6 d8R Nd5 d7 Bb7 Bc4 Nf4 Nf1 Be4 Rf6+ Kg7 g6 Qc6 g5 Nd5 Bf4 c1R Ra4 Qb5 Qc2 Bf5 Rb4 Nb6+ Bd5 Rh4 Qc7 Rc3 Kd6 e5 Ke7 e4 Bf7 e3 Ne5 e2 Rg1 h1B Bh2 e1N Ke8 Kh8 g7+ Kh7 Kf8 Bb7 Rg3 Bf3 Bg1 Rh2 Rgg4 Qa4 Rb5 Bd1 Rgb4 Rhh3 Rc8 Nf3 d8B Rh1 Be7 Rh3 Bc5 Nh2 Rd8 Rh5 Rd5 N8d7+ Ke7 Nf8 Bd4 Rc8 a8Q Ra3 a7 Ra2 g8B+ Kg7 g6 Bd2 Qac6 Rh6 a8Q Bc3 Qab8 Qa8 Qe6 Qc6 Qa8 Qe8+ Kd6 Nbd7 Ba7 Nb6 Qce7 Bd4 Qeb7 Rc3 Qc7 Rhh3 Bh7 Kh6 g7+ Kg5 g8Q+ Kf4 Qh8 Ke4 Qg7 Rh6 Bhg6 Qb8 Ke7 Qc8 Nc6+ Kd3 Ne5+ Kc2 Bh5 Kc1 Bf3 Ra1 Rd8 Ra2 Bb7 Qb8 Rdd5 Qc8 Bh5 Qb8 Kf7 Qe8+ Kg8 Nc8 Nd3+ Kb1 Qgd7 Rc2 Rf7 Bh8 Ne5 Nb6 Rf6 Kc1 Qg7 Rc3 Bf7
kR1R1q1n/8/r1N4Q/QPR2Rnr/1b1B4/2Nr4/NKp1BBbN/B1n3b1 b - - 0 1 illegal: No possible last move, all moves rejected
Rb1K1Q2/3n2N1/1k1b1Brr/P1R4N/q2N4/p1rQ3b/Q1nn1N1R/1Q1R1B2 b - - 0 1 illegal: No possible last move, all moves rejected
2r1R1KR/1B1RQ3/7N/pB3r2/bb1NP1B1/N6b/nr1R1nqB/4QkNn b - - 0 1 illegal: No possible last move
1K1R1Rn1/4N3/QbBPb2r/2b2BQ1/pq1RB2R/1QB1r2n/2n4Q/3krN2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 g4 a5 d4 c5 f4 h5 d6 a4 d7 h4 d5 h3 b6 e6 b7 c4 g6 c3 g7 h2 g5 c2 g6 Kb3 f6 Rh5+ f5 Qb6 d8R Ra6 f7 Rg5 Qh5 Bd7 Nf3 Qa7 Bd2 c1B Bb5 Kc2 b4 Bc6 Nh4 Bd7 Bc6 Ba3 b5 Qa8 b6 Nh6 g8B Be8 g7 Bac5 Bh7 Bf2 g8B Ba3 f8R Rg6 f6 Bb4 f7 Bbc5 Qg5 Ra7 Bc3 Bfe3 Nd2 Na6 b8Q Re7 b7 Bd7 Nf1 Nb4 Nf5 Qa5 Rd1 Bb6 Qd6 Bec5 b8Q Re8 Ne7 Bc8 Rg1 h1N Rg4 Nf2 Rh4 Nh3 Rdd4 Qb5 Qa7 Bd7 Qa6 Bc8 Rc4 Kd1 Qb8 Rf6 Be4 Nc2 Bgh7 Ng8 Bhf5 Rh6 Rb4 Be3 Kd6 e5+ Ng6 Be6 Ne7 Bbc5+ Kc7 Bb6+ Kb7 Bec5 Rc4 Qb4 d6 Bg1 Ka8 Bbc5 Qbb5 Bb6 Kb8 Bgc5 Bd3 e4 Rd4 e3 Qc4 e2 Qb3 e1R Bfe4 Nf6 Bf5 Re3 Bde4+ Kc1 Rh8 Ng8 f8Q Ne1 Qfg7 Nc2 Qg1 Re1 Q7g5+ Re3 Bd3 Kd1 Qh2 Rf8 Bfe4 Rf2 Rf8 Rfe2 Rd8 Re1 Bf5 Nf6 Rhf8 Ng8 Bde4+
1N4B1/BQ3qR1/B5b1/rR4Nk/2PQ1qQ1/1b1p1qn1/rb1n1N1B/Q5KN b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 Kf2 a5 b4 d5 g4 e5 g6+ Kg7 g5 h5 b6 d4 b7 e4 b5 h4 c6 a4 b6 a3 c7 a2 Ba6 d3 c4 h3 Ne2 h2 Nbc3 Bc5+ Be3 Ne7 f6+ Kf8 f7 Kg7 f8N Bf5 c8Q Ng8 Rg1 h1B Ng3 Nc6 b8N Ba3 b7 Nge7 Nh7 Qd6 Rb1 a1Q Rb5 Na5 Ba7 Bf3 Nh1 e3+ Kf1 Qc7 Ne4 Nb3 Nef2 Qd4 Qa1 Bb2 Qd7 Qf6 Qd4 Bd1 Rg2 e2+ Kg1 Be4 f5 Nd2 Rg3 Qfe5 Rg4 Bb3 f6+ Kg8 f7+ Kg7 Rg3 Nf5 Rg4 Ng3 f8B+ Kg8 g7 Kf7 g8B+ Kg6 Be7 Qf4 Bd6 Kh5 g6+ Bf5 g7 Qf7 Ng5 e1Q+ Kh2 Qee3 Kg1 Bg6 Bc7 Nf5 Rg2 Qff3 Bh2 Ng3 Nc6 Nge4 b8Q Ng3 Qb7 Qe5 Nb8 Qef4 Bh7 Re8 g8Q Re5 Qgc8 Rf5 Bg8 Rc5 Rb4 Ra5 Rb5 Ra2 Qg4+ Kh6 Bc5 Ra7 Qgc8 Nge4 Nh7 Bh5 Rg7 Ng3 Qg4 Bg6 Ng5 Be4 Qc7 Ra8 Bb7 R8a5 Ba6 Bh7 Ba7 Bg6 Qgc8 Kh5 Q7b7 Qe8 Qcd7 Qef7 Qg4+
1Q2B2Q/N2N1NqR/1Q2rR2/qrRr2PQ/kn1B1Kn1/8/1bN4p/2R2b1b b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 b4 c5 g4 f5 d4 h5 g6 c4 e6+ Kd6 g7 a4 g5 h4 b6 a3 b5 h3 b7 c3 b6 c2 e7 a2 e8R Nh6 g8R Nd7 b8N Qf6 b7 Ng4+ Kf4 Rh7 e4 Qf7 e5+ Kc7 d6+ Kb6 e6 Ka5 d5 Ndf6 d7 Qh5 d8N Bc5 d6 Rf7 e7 Bd7 Be3 c1Q Bb5 Bc6 d7 Qa3 Ne2 Qh6 Nec3 Bd4 Ref8 Ra6 e8Q Qg7 Ba4 Bf3 Nb5 Bb2 Na7 Re6 Bd4 h2 Rh8 Qc5 Rh7 Bc6 Re1 Bh1 Na3 Kb4 Re4 Qa5 Rc1 a1R Re5 Rb1 Rec5 Rfe7 Nf7 Nd5+ Kg3 Re5 d8Q R7e6 Nd7 f4+ Kh4 f3 Kg3 f2 b8Q+ Nb6 Kf4 f1B Bc6 Rd5 Nc2+ Kb3 Bb5 Ne5 Qh5 Ng4 Bd3 Ka4 Bg6 Ba1 Qdc7 Rb5 Qd6 Bb2 Qc6 Na8 Qcb6 Nc7 Qed8 Na6 Qf6 Qg8 Qh8 Qg7 Nd6 Re2 Be8 Nb4 Rf6 Re6 Nf7
1N3kQK/5N1Q/BN2q2N/B1b2P2/bRR2rbQ/2n1BQ2/5p1q/2rn2Br b - - 0 1 illegal: No proof kernel
2Qr2Br/R1RR1Rn1/1Kbn1p1b/3PBkN1/q1B2q1B/N5Nb/3N1n2/2Q5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 c5 d4 a5 g4 h5 b4 h4 e6+ Ke7 b6 a4 b7 a3 g6 Kf6 b5 h3 e7 h2 e8R c4 d6 c3 d5 a2 Kd4 c2 Kc5 Qe7 e4 Bg7 g5+ Ke5 b6 f6 Ne2 Rh3 Na3 Rh5 Rd8 Ra4 Ng3 Rh3 Bc4 Bh6 g7 Rb4 g6 Bf4 Rd7 Nc6 b8R Nh6 g8Q Bg5 b7 Rh4 g7 Ra4 Kb6 Nd8 Qf8 Nhf7 g8B Bh6 Bg5 Rf4 Qc1 Ra8 Bh4 Ne6 Rc7 Rg4 d7 Nd6 d8N Ng7 Ne6 Bd7 Ng5 Bc6 Rd8 Qf7 Re1 h1B b8B Bg2 Rdd7 Bh3 Qc8 Qe6 Re3 Qf5 Rf7 Kf4 e5 Qe4 e6 Qf5 Qd2 c1N e7 Nd3 e8N Nf2 Qc1 Qe4 Rcd7 Ke5 Rc3 Qf4 N5e4 Rg6 Nc7 Rg5 Nd2 Rh5 Ngf1 Kf5 Ne6 Ra7 Ng5 Ra8 Rb1 a1Q Ng3+ Kg4 Rb5 Qa2 Ra5 Qa1 Ngf1 Kf5 Raa7 Qa2 Bc7 Qc2 Bb8 Qa4 Bc7 Nb5 Be5 Nd6 Qa6 Re8 Qc8 Rd8 Ng3+ Kg6 Qd1 Bb7 Ne2 Kf5 Ba6 Ba8 Rcc7 Bc6 Ne6 Bg5 Qc1 Rh8 Bc4 Bh6 Ng5 Re8 Rab7 Rf8 Ra7 Rd8 Ng3+
1Q1b1qQb/1NN1PBQ1/3B2R1/B4r2/1q1n3p/3knQ2/B2N1rN1/1R1b2nK b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 h5 Kg2 f5 e4 c5 b4 a4 b6 a3 d6 Kc6 d5+ Kb7 e6 a2 d7 h4 g6 c4 g7 Ka6 d6 Kb5 b7 f4 g5 Nh6 g8B Qa5 d8B Qb6 d7 Rh7 e7 Qa5 e8N Ng4 e5 Qa6 g6 Qa5 g7 Be7 e6 Na6 b8Q+ Qb6 Nh3 Rh5 Ba3 Rf5 Qe5+ Nc5 Rg1 f3+ Kh1 f2 Bf7 Ne3 g8Q Ba6 Qeg7 Nb3 Qdg4 Nd4 Qf3 Qb8 Ba5 Bd8 Bg2 f1Q e7 c3 Nf4 c2 Nd2 c1N Rb1 a1B Ba2 Nce2 Nc7+ Ka4 b5 Bb7 Qh5 Bf3 b6 Ra6 b7 Raf6 Bd6 Qf2 Rgc1 Ng1 Rc6 Bd1 Bgd5 Qe1 Ng2 Bb2 Na6 Kb5 Bf7 Qc8 Qhg4 Rf2 Qf3 Rf5 Bg3 Qb8 Rg6 Qf1 Bd6 Qc4 Nc5 Qb4 Ne6 Qa8 Nb3 Kc4 b8Q Kd3 Nd2 Bc7 d8N Ba1 Nb7 Bd8 Qc8 Qb8 Bh2 Qf4 Nc7 Qh6 Bd6 Qh8 Qe8 Qf8 Qb8 Qh8 Bf4 Ne6 Qh7 Bg7 Be5 Nd4 Bd6 Qg8 Qf8 Bh8 Qfg7 Qf8 Qhg8
b7/1p1RNq2/3B2rk/BQ1QrB2/1P2n1B1/Q1NR1q1b/KQ4n1/nRb1R3 b - - 0 1 illegal: Other
3B2Nn/Rn2qNNQ/2b1Nb1n/1k3BB1/R2r2R1/3nn3/P1p4K/1BR1r1Q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kd7 d4 e5 f4 c5 Kf2 b5 Kg3 g5 h6 b4 h5 g4 d6 Kc6 d7 e4 h7 b3 d5+ Kd6 a6 c4 h6 Kc5 d6 c3 f6 b2 a7 e3 f5 e2 f7 e1N f6 Kc6 Bg5 Be7 f8R Ba6 f7 Qc7 d8N+ Kb6 Rh4 Kc5 Ne2 Bb7 Bh3 Kb5 Nf4 Na6 d7 Bf3 Nd2 b1N Ne4 Qd6 Ne6 Rb8 a8B Nd2 d8B Nc5 Nf6 Ned3 Qg1 Nb7 Kh2 Nc4 Ng7 Bc6 Rc1 Ne3 Re8 Rc8 f8R Rc7 Rf7 Rd7 Ref8 Qc5 Nfe6 Rd4 Bg2 Qa3 Be4 Qb4 Bf5 g3+ Kh3 g2 Kh2 Qa3 Rg4 Qb4 Nd5 Bf6 Ne7 Nf2 Bb1 c2 Re8 Nd3 Ref8 Nbc5 Bb7 Qe1 Bc8 Nb7 Bd7 Be5+ Rff4 Bf6 Rf7 Qb4 Nc5 Qe1 Bf5 Qe2 Nce6 Qe1 Qf1 g1N Re4 Nh3 Qg1 Rd5 Ra4 Nhf4 Nc8 Ng6 Rd7 Ba1 Ne7 Rd4 Rc7 Nf6 Rd7 Re8 h8Q Ng8 h7 Nh6 Ng8 Qb4 Rc7 Qe7 Rd7 Na5 Ra7 Nb7 Nf6 Bb2 Qg8 Ba1 h8N Bc3 Nf7 Nh8 Qh7 Rf8 Bg6 Rc4 Ne5 Rf7 Nfh5 Rf1 Bf5 Re1 Nf6 Ba1 Ng8 Re4 Ng6 Bf6 Ne5 Rd4 Nf7
N1Q1NB2/1b2Rkb1/B1q1pbrB/R4n1r/2Qn1bNP/KQ1b3N/8/2Q1B3 b - - 0 1 illegal: No possible last move, all moves rejected
3q1R2/1B1kbB2/PQbn3B/n4b2/3Q2Nr/Qb4B1/1p1K2R1/NbrNN1Q1 b - - 0 1 illegal: No proof kernel
2k1Q3/2NR1N2/q1Bb1BN1/1QRQBr2/B3N1K1/2n1bn2/2P1rpb1/1rQ4r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 d5 Kg3 Kd7 h4 g5 b4 f5 e4 a5 e6+ Kc7 c6 a4 b6+ Kd6 h6 f4+ Kg4 d4 h7 d3 h5 a3 b7 Kc7 e5 f3 b5 d2 h6 a2 Nc3 f2 Ne4 Qd4 b6+ Kd8 c7+ Ke7 Nf3 Qb4 Nh4 Ra6 Ng6+ Ke8 Rh5 Qc5 Bg2 Qc6 Bb2 Ra5 Qc1 Nd7 b8N d1R b7 Re1 e7 Re2 Na6 Qa4 b8B Bb7 c8B Rb5 Rb1 a1B Bh1 Ba8 Bb7 Qa5 Bc6 Rc5 Ba4 Nf6+ Kg3 Nd5 Kg4 Nc3 Nc7+ Kf7 Bf3 Qa6 Bh1 Rc6 Bg2 Rf6 Bf3 Rf5 Bg2 Rg8 h8Q Bb7 h7 Bc6 Nd5 Ke6 e8Q+ Be7 Qd8 Bd6 Qa5 Ba8 Qb5 Re8 Bc7 Rb8 Qd8 Bb7 h8N Bc6 Kg3 g4 Nf7 Ba8 Kh4 g3 Kg4 Bc6 Bh1 g2 Qg8 Ba8 Bd8 Bc6 Bf6 g1R+ Bg2 Rh1 Rg5 Nb6 Nc7+ Kd7 Rh5 Nc4 Rh7 Re8 e6+ Kc8 e7 Nd2 Rg7 Rd8 e8Q Nf3 Rh7 Nd5 Bbe5 Bd4 Rb4 Be3 Rc4 Nc3 Rc5 Ba8 Nfg5 Bc6 Qd5 Bb7 Rd7 Bc6 Qee6 Rdh8 Nf7 R8h2 Qcd2 Rb1 Qc1 Rh1 Neg5 Qb6 Qdd2 Ng1 Bf3 Bd5 Qe7 Qa6 Bg2 Ba2 Bc6 Bd5 Qd4 Bg2 Ne4 Nf3 Qd5 Bh6 Qee6 Be3 Qe8#
B1R1Qq1N/N4N2/b2N3B/B1n3QP/Q7/2pBr2n/kbKn3n/4rQbR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 Kd2 f5 e4 c5 b6 f4 h6 a4 e6 Kd6 h7 f3 e7 g4 e8N+ Ke7 b5 g3 d6+ Ke6 h5 g2 d5+ Ke5 b7 Kd4 b6 c4 e5 f2 e6 a3 d7 a2 d6 c3+ Kc2+ Kc5 e7 Kb4 Bh6 Ra3 Nh3 g1B Ng5 Ra4 Nf7 Ra3 Bd3 Ra4 Qf1 Nf6 Na3 Nd5 Nb5 Nf4 Na7 Na6 b8Q Ka3 b7 Nc5 Qa8 Re4 b8Q Re3 Qb5 Rg8 h8N Ba6 Rd1 Qc8 d8Q Nh3 d7 Rg7 Ned6 a1N+ Kb1 Rgg3 e8B Nab3 Kc2 Ka2 Qg5 Re1 d8B Rge3 Bc6 Nd2 Ba5 Be7 Qab8 Qg8 Ba8 Qf8 Qfg2 f1N Q8e8 Nh2 Qf1 Re6 Rb1 R6e5 Qbd7 R5e3 Rb8 Nce4 Nb7 Ba3 Rc8 Nc5 Nbd6 Bb2 Qa4+
2N1k3/1Nb2n1b/3q1r2/BR1PrRnB/5r2/1rQp2Bn/2R1B1N1/K3N1QR b - - 0 1 illegal: No proof kernel
RBrN2K1/R2N3B/3Pp1B1/1Qnb4/N2n3Q/nr3Q2/7B/bkqQnbN1 b - - 0 1 illegal: No possible last move, all moves rejected
4rbk1/1b1Qp2N/q1b2r2/2n2n1Q/1b1B3R/P1QN1B1K/2R1QN2/3rNR1R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kf7 Kf2 c5 Kg2 g5 h4 b5 d4 g4 d6 c4 a6 b4 d7 b3 a3 g3 d5 c3 h6 c2 f6 b2 h5 Qa5 d8N+ Ke8 f5 Nc6 d6 Qc3 f7+ Kd7 f6 Qb4 h7 Qc5 h6 Qg5 a7 Qf4 Be2 Qf5 Nd2 b1B Ne6 Qd5+ Bf3 Ne5 Bb2 c1B Ne4 Bd3 Kh3 g2 Qe2 Bb7 Nf4 Qc6 Nf2 Qb5 Bd4 Bg6 N4d3 Ke6 d7 Qc4 d8Q Qc8 Ra2 Bd2 Rc2 Rb8 a8R Bge4 Ra4 Bec6 Qe8 Bb4 Qd8 Bg7 f8N+ Kf7+ Qd7 Ra8 Be4 Ra5 Nf3 g1R Nfe1 Ra6 Bf3 Rb6 Ne6 Qa8 Ng5+ Kf8 f7 Qa6 Qe6 Nd7 Qd5 Nc5 Qd7 Bd2 Rb4 Nf6 Ra4 Ne8 Rb4 Rg8 h8Q Nd6 h7 Nf5 Rbc4 Bh6 Qf6 Bg7 h8Q Bb4 Qh5 Bh6 Ba1 Rh8 Qc3 Rf1 Rd4 Kg7 Nh7 Re8 f8R Rg1 Rf7+ Kg8 Rh4 Bf8 Qb3 Rf1 Bd4 Rg1 Qc3 Rf1 Ng2 Rd1 Rf6 Bb5 Rf7 Rf6 Nge1 B5c6 Rg7+ Kh8 Rg5 Rd2 Rgg1 Rd1 Rf1 Kg7 Rb2 Kg8 Rc2
2b1n3/p2k4/4Rb1Q/1B1Rq3/R1B1Pb2/nrQ1nBQ1/2Qb1B1N/1Rr1N1K1 b - - 0 1 illegal: No possible last move
7n/BRB3Q1/QKB1r1Q1/5B1n/Q2N1R1r/qbbb1N2/1p2P1Nq/1b1N2k1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 Ke3 h5 Kd4 b5 Kc5 f5 g4 c6 a4 b4 d4 h4 e6 b3 d6+ Ke8 g6 f4 g7 b2 d5 f3 a6 f2 a7 h3 a5 h2 g5 Bb7 e7 Kf7 e8N Kg6 a6 Kh5 g6 Kg4 Nc3 Kg3 Nf6 Nh6 g8Q Qc8 g7 Qf5 Bh3 f1B Kb6 Kf2 d7 c5 d8B c4 d6 Qd3 d7 Bd5 Bc7 Bfg2 d8N Bge4 Qa4 Nf7 Nc6 Rh4 Nh5 Bb4 Nf3 Nh8 Nf4 Be6 Rd1 h1B Ncd4 Bf7 Bf5 Nd7+ Kb5 Bg6 Ng2 Nf6 Kb6 Re8 a8Q Nh5 a7 Re6+ Q8c6 Qe3 a8B Bb1 Qf7 Qe5 g8Q Qh2 Qgg7 Bd3 Rd2 Kf1 Nd1 c3 Qa6 c2 Ra4 Bc3 Rb4 Bh7 Qfg6 Bg8 Kc5 Bh7 Qca4 Bg8 Bc6 Bf7 Ng5 Kg1 Rb7 Bg8 Kb6 Bh7 Nf4 Bd5 Ng2 B5c4 Qf8 Bb3 Qfg7 Bdc4 Rd3 Bb5 Bd2 c1Q Rf3 Bd3 Rf4 Qa1 Be1 Qa3 Bg3 Bg8 Bb8 Ba2 Ba7 Bab1 Ngf3+ Kh1 Rf7 Re4 Rb7 Bb3 Rg4 Re8 Bc7 Re6 Ng5 Kg1 Re4 Rf6 Rf4 Re6 Ngf3+
2r1BRRR/1QbkrN2/1q4Bn/Br2r1N1/b6P/NpR2Q2/2B1N2q/2n2K2 b - - 0 1 illegal: No possible last move
1N1r4/K2R3n/nNQ1B2q/kN1R3R/1n3P2/qQrp1n1N/1R2bB2/b3B2B b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 Kd7 c4 Kc7 f4 a5 h4 e6 b4 a4 c6 Kb6 f6 a3 h6 a2 h7 g4 f7 g3 c5+ Kc7 h5 g2 h6 Qh4 b6+ Kd8 c7+ Kd7 b5 Bd6 f8B Be7 c6+ Kd6 b7 Bd7 c8B Kc7 b6+ Kd6 c7 Kc6 Qb3 Qh2 Be3 Qg3 Na3 Nf6 Rd1 a1N Rh5 Na6 Nh3 g1Q b8R Qh1 b7 Qhh2 Nb5 Kb6 Bg7 Ka5 Bg2 Rd8 h8Q Nh7 Bf2 Bf6+ Re5 Be8 Bh1 Bh5 Qe8 Be2 Qc6 Ra7 Bd7 Qf3 c8N Ra8 Qb2 Qa3 Nb6 Rc8 Qb3 Nc2+ Kc3 Ncb4 Kd4 Rd8 Rd2 Rc8 Rb2 Rc7 Rd8 Rcc8 b8N Rc7 Ke3 d4+ Ke4 d3 Rd5 e5 Be6 Rc8 R8d7 Rd8 Ke3 e4 Bf8 Ra7 Be7 Be5 Beh4 Rc7 Be1 Bh8 Bhf2 Be5 Qd6 Rc3 Qc6 Bd6 Kd4 e3 Ke4 Be7 Ke5 Bf6+ Kd6 Nc5 Kc7 Nca6+ Kb7 Rc4 Ng5 Bf3 Ra2 e2 Ka8 Ba1 Ka7 Nf6 h7 Rc3 Bd2 e1N h8R Be2 Rb2 Nf3 Bde1 Qh3 Rh4 Nh7 Rh6 Qh4 Nh3 Qf6 Rh4 Qh6 Rhh5
2KB3R/Q2BbR2/4B2N/1nN1P1R1/1pb2Q2/2qn3k/1rBRbq2/2QQ2br b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 Ke4 c5 Kf5 b5 d4 g4 h4 f6 a4 c4 e4 b4 a6 c3 a7 c2 a5 g3 d6 g2 d5 Rh7 a6 Nc6 h6 Bg7 e6+ Ke8 h5 Rh8 h7 Bb7 e7 Kd7 e8B+ Kc8 Ke6 f5 d7+ Kc7 d6+ Kb6 e5 Kc5 h6 f4 Rh5 f3 Nh3 g1B Ng5 f2 Bd3 Kd4 Nd2 Ke3 Nf7 Kf4 Nb3+ Kg3 Rg5+ Kh4 Nc5 Qb8 d8R f1B Kd7 Bd4 Bd2 c1Q Bc2 Qb2 Qc1 Kh3 Be1 Qb3 Bh4 Nge7 Rb1 Rg8 h8Q Nf5 h7 Nce7 Nh6 Bf8 Qf6 Be2 h8R Ng6 Bf7 Qa3 Be6 Bd5 Rb2 Be7 Rf8 Bg1 Rf7 Qf8 Ra2 Re8 a8B Qg3 a7 Nf4 Bc6 Qc3 a8Q Nd3 Qa7 Bc4 Kc7 Rg7 d7 Ra8 d8Q Rh7 Qd4 Rd8 Bcd7 Ra8 Rg4 Nd6 Qff4 Nb5+ Kb7 Nb2 Qdd1 Nd3 Qb6 Ra3 Qa7 Rb3 Bg5 Rb2 Bf6 Bd6 Bd8 Be7 Kc8 Qg7 Ra6 Qf6 Rd6 Qh4 Nf5 Qf2 Rg5 Rh4 Nh6+ Rg4 Rff5 Rg2 Rd4 Rh2 Rd5 Rh1 Rd4 Ne1 Rd2 Nd3 Rf7+
Q1N5/1nB1q1B1/5RbR/2p1N1k1/2N3BN/2B1P1Kb/b1rR1n1Q/q1r2Rb1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 g4 c5 d4 h5 b4 a5 b6 f5 b7 h4 b5 f4 d6+ Kf7 e3 Kg6 e6 h3 d7 h2 b6 f3 d5 a4 e7 a3 e8R a2 d6 Ra3 Nd2 Ne7 Qc2+ Nf5 Be2 Rg8 Nc4 Qc7 d8B Rc3 d7 Rb3 Bb2 Be7 Rf8 Rc3 Rf1 a1Q Rf6+ Kh7 g6+ Kh6 g5+ Kh5 g7 Qa2 g6 Nc6 b8N Nb4 b7 Nd6 Kg3 Qa1 Nc6 Nd3 b8B Kg5 N6e5 f2 Bg4 Nb7 Qe2 Rf8 g8Q Rc2 g7 Bd6 Bc3 Rc1 Be7 Rf7 d8R Be6 Bf8 Qe7 Bc7 Rc2 Nd2 Ba2 Nc4 Rc1 Qh8 Rc2 g8N Rc1 Re1 f1B Bg7 Bh3 Ref1 Nf2 Rd7 Rf8 Qb2 Ra8 Qa3 Ra5 Qa4 Rb5 Qa8 Rb2 Rd8 Rbc2 Rd7 Qf7 Ne7 Qe8 Nc8 Qe7 B7a5 Bb8 Rd2 Bd6 Ne2 Bc7 Nd4 Bd6 Nf5 Bc7 Rhg1 h1B Nh4 Be4 Rh1 Bg6 Bb6 Bb8 Bc7 Qf8 Nf5 Nd8 Bd6 Nb7 Nd7 Qe7 Kh2 Bg2 Bg3 Be5 Qh3 Bd4 Bc7 Be5+ Qg3 Bf4 Nde5 Bh7 Kg1 Bg6 Rh6 Bh3 Nh4 Nd3 Qf2 Bh2+ Kh1 Bg1 Qg2 Bf2 Kh2 Bg1+ Kg3 Nf2 Qh2
r1qQ4/n6N/QR1br1P1/1R2R2n/p1N2Nb1/1k1qQB2/3R1BQ1/K1bNb3 b - - 0 1 illegal: No possible last move, all moves rejected
Qb1K3R/n1p1P1Rq/qR1Q1B2/B4nB1/2k5/Q2NRB2/b1r1N2q/3Q2rq b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 a5 b4 a4 e4 a3 d4 a2 h4 g6 b6 Ra7 b7 Bg7 d6 Kc6 d7 Ra6 b5+ Kb6 e6 Rh6 e7 Rh7 Kg5 f4 d5 Kc5 h6 f3 h5 f2 d6 Ra4 b6 Nf6 e8R Nc6 b8Q Rh8 b7 Rd4 h7 Rd2 h6 Na5 e5 Rf8 h8Q Kd4 h7 Rg8 e6 Nc6 Bg2 f1Q Nh3 Qg1 Nf4 Kc4 Nc3 Bf8 Nd3 Qa7 Qa8 Rg7 b8R Qe7 d8B Rc2 d7 Qa6 Rb6 Na7 Ne2 Qf7 Rh2 Nh5 Bf3 Ng3 Bf6 Nf5 d8Q Bc5 Qd6 Bg1 Rab1 a1Q Qhf8 Rg8 h8B Qh7 Bhg7 Qe5 Rg2 Qeh2 R1b3 Bb7 Bh6 Bd5 Bd2 Bf2 Ba5 Bc5 Kg4 g5 Qfe7 Rg7 Rh8 Nh4 Ndc1 Qh1 Qdd7 Nc8 Rb8 Ba7 R8b6 Bb8 Rg3 Na7 Qa3 Rg6 e7 Bg8 Qaa4+ Kc5 Re3 Ba2 Qa3+ Kc4 Nd3 Rg8 Kh5 g4 Qdd6 Rg7 Rg2 g3 Rg1 Ng6+ Kg5 g2 Kf5 Nh4+ Ke6 Nf5 Kd7 Rg3 Kd8 Rg7 Rf1 g1Q Re1 Qgh2 Rg1 Rg3 Bf4 Rh3 Rg4 Rg3 Rg7 Rg1 B4g5
q1r1R2k/Q2q2r1/1QbN1Q2/p1n4K/P1r3BQ/B1NBNnqN/6n1/1R4B1 b - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Bh6 dxe5 Bg5 hxg5 Ke7 Bf4 Kf8 Bc1 Ke8 c4 Kf7 e4 Kg7 Ke2 d5 f4 b5 a4 a5 e6 h5 e7 d4 e8Q b4 g6 h4 e5 g3 Kf3 d3 Kg4 d2 e6 g2 e7 b3 c6 h3 c7 h2 c5 b2 c6 Qd3 Qe1 d1N Qf7+ Kh6 e8N Qb3 g7 Kh7 Nh3 g1Q+ Kh5 Nf2 f6 Qg2 f5 Ne7 g8N+ Qg7 Nh6 Nd1 Nc3 b1Q Bd3 Bb7 c8B Nb2 c7 Ra7 Be3 Q1d1+ Ng4 Bc6 Nd6 Nd5 Rb1 Qf3 Bg1 Nc4 Qh4 Na6 Re1 Rd8 Re8 Nd2 Qe6 Qg2 f7 Ne3 f8Q Nf3 Qff6 Nc5 Bd7 Qb8 c8Q Qa8 Qa6 Rc8 Qb3 Qe7 Qbb6 Qg3 Qab7 Ng2 Ne3 Qe6 Qb8 Rb7 Q8a7 Rbc7 Qfg5 Qd5 f6+ Qf5 f7 Rb7 f8B Kh8 Be6 Rg7 Bd7 Qd5 Bg4 Qe6 Bf2 Qd7 Rb1 h1R Qf6 Rc1 Bg1 Rc2 Ne2 Rc4 Nc3 Qdb7 Nc2 Qe7 Ne3 Qd7 Ndf5 Na6 Bb4+ Kh7 Ba3 Nc5 Re6 Kg8 Nd6 Kh8 Re8+
q1QB3k/3nN3/Q1pb4/1nq1r1RB/2R2q1R/1r3N1r/K1PR1NB1/3NB2r b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Be7 g4 Bb7 h5 Be4 Ra5 Bd3 Ra1 Bg6 hxg6 Bf8 Kd2 d5 Kc3 a5 Kb3 f5 e4 h5 g7 Kf7 e6+ Kg6 e7 Kh7 e8B c6 e5 f4 b6 h4 g6+ Kh6 e6 h3 e7 d4 b7 h2 Nc3 d3 Ra4 d2 Ka2 f3 b4 f2 b5 Nd7 b8Q Ndf6 b6 Qd4 b7 Qa7 Bg2 f1Q Nf3 Qff2 g5+ Kh5 Qf1 d1Q Qa6 Qdg1 Nd1 Qfd4 Bd2 Nh6 g8R Qf4 g7+ Nf7 g6 Kh6 Rc4 a4 Qc8 a3 b8B Nd7 Be1 Qgc5 Bc7 Rb8 Bd8 Nd6 Bf7 Rh7 e8N Nb5 Nd6 Qa8 Ne4 Bd6 Nef2 Rb6 Rf8 Rh8 g8N+ Kg7 Re8 Rh3 Re2 Kh8 Ne7 Rb8 Rd2 Rb6 Kb1 a2+ Kb2 a1R g7+ Kh7 g8R Ra5 Rg5 Kh8 Bh5 Rb7 Rf1 h1R Kb1 Ra3 Kb2 Re3 Ka2 Re5 Rg1 Na3 Rg4 Rb3 Rh4 Nb5 Bf1 R3h2 Rg5 Rh3 Bg2
2q5/5r1k/2Q1b3/1br1nBQB/Bpp1Pn1n/B2NbQ2/3R3K/R1RQ1NR1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 g5 Kg3 c5 h4 b5 d4 f5 a4 Kf7 e4 Kg7 h6+ Kg6 h5+ Kh7 d6 g4 d5 b4 e6 c4 d7 f4+ Kh2 f3 d6 f2 a6 Qb6 d8R Nc6 d7 Nf6 e7 Qb7 e8B Ng8 a5 Ne5 a7 Qb6 a6 Qb8 Nd2 Bc5 Ba3 Qb5 Ne2 Rb8 a8B Ba7 Bh3 f1B Bc6 Bc5 a7 Rb7 a8Q Qa4 Nf4 Nf6 Nd3 Rb5 Rg1 Be3 Qb7 Be2 Nf1 Qa8 Bf7 Rc5 Ba4 Bf3 Qc6 Rf8 Rc1 Nd5 Bg6+ Kh8 h7 Ba6 Ra1 Kg7 h8R Qc8 Rh7+ Kg8 h6 Nf4 Bh5 Bb5 Rf7 Bg2 h7+ Kh8 Rf6 Kg7 Rd6 Rf7 Rh8 Bf3 d8Q Bg2 Qh4 Bf3 Qf2 Be2 Qf3 g3+ Kh1 g2+ Kh2 Ba6 Bf5 Bb5 Qg3+ Bg4 Qgf3 Qc7 Ra8 Qc8 Rc1 Bh3 Bfg6 Be6 Bf5 Kh6 h8Q+ Rh7 Qg8 Rf7 Rh1 g1N Qd8 Kg7 Qg5+ Kh8 Bfg4 Kh7 Bf5+ Nfg6 Ra6 Ne2 Rg1 Nf4 Nb2 Kh8 Rd2 Kh7 Nd3 Qg8 Bc2 Rb7 Bb2 Qc8 Raa1 Rc7 Ba3 Rf7 Bh3 Nh4 Ba4 Ra7 B3g4 Rf7 Bf5+
QnN4r/q2rb1Qk/2R4P/6RN/2N1n3/RKpbN2Q/1BB1Qpnb/4R3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 g5 b4 f5 d4 Kf7 Kd2 Kg7 Kc2 a5 e4 c5 b6 c4 e6 g4 h6+ Kh7 h5 f4 b5 c3 b7 g3 b6 a4 d6 f3 d5 a3 e5 g2 d7 f2 d6 a2 e7 Na6 b8R Ra7 e8N Rb7 e6 Ra7 e7 Nf6 b7 Qa5 d8R Qb5 d7 Qb4 Nf3 g1N Nd6 Ra8 e8N Qg4 Ng7 Qc4 Ne1 Nh3 Nd2 Ng1 Bd3+ Ne4 Qe2 Be7 Bb2 Nh3 Ng2 Bh4 Ne3 Be7 Rhe1 Qc7 Kb3 Bf8 Bc2 Nf4 N2c4 Be7 Rg8 Nd5 d8Q Qd7 Qc7 Ra7 Ra8 Nf4 b8Q Bb7 Nc8 Ng2 Rad1 a1B Rd6 Bd5 Rc6 Bf7 Qg3 Bg6 Qh3 Rc7 Qb7 Nb8 Ra3 Qd4 Qa8 Qa7 Ne8 Bf5 Rg5 Rd7 Ng7 Bd6 Bd1 Bh2 Bc2 Kg8 Bc1 Bb2 h7+ Kf8 h6 Bg6 Raa6 Ba3 Bb2 Bb4 Nh5 Be7 Ra3 Kf7 Rga5 Bf5 N8d6+ Kg6 Nc8+ Nf6 Rd5 Bd3 Rg5+ Kf7 Qhf3 Rf8 Rga5 Kg6 h8Q Re8 Qf8 Kh7 Qh3 Ne4 Rg5 Red8 Qf6 Rh8 Qg7#
BBbR1rB1/1q2k3/2N2p1r/1RQ1Nb2/3p1R1Q/2QBn1P1/1Q3b2/1RK2nn1 b - - 0 1 illegal: No possible last move
2n3rB/Q2b1k1b/Q1P1r2R/1N1B2qn/R1NRB2N/3p2nB/p7/1R1Nb1K1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 a5 Kf2 h5 b4 d5 c4 e5 g4 e4 c6 d4 b6 d3 g6 a4 g7 h4 b7 h3 c7 h2 f6 a3 f5 Qd6 b5 Qb4 g5 Qc3 f7+ Ke7 f6+ Ke6 b6 Ne7 g8B Qe5 g6 Nf5 g7 Nh6 c5 Bd6 f8R+ Nf7 c6 Rh4 Ne2 Rg4 Bh7 Rg1 g8B Rg3 Qa4 Nd7 b8R Bb4 b7 Qd5 Bh3+ Rg4 Nbc3 Qh5 Qa6 Nc5 Nb5 Bd7 c8N Qg5 Rd8 e3+ Kf1 Bd2 Be4 Be1 Nec3 a2 Rb1 Ra7 Nd1 Ra8 Ncd6 Ra7 Rg1 h1B Nc4 Ra8 Rg3 e2+ Kg1 Ra7 Ra8 Bg2 Beh7 Ne4 b8Q Rc7 Rf3 Ng3 Bb2 Ra7 Rf2 Be4 Rh2 Rb7 Qba7 Rb8 Rf8 Re8 Bg6 Re7 Rfd8 Re8 B8h7 Nd6 f7 Bf5 Bg8 Nc8 f8N+ Ke7 Bd5 Be4 Bh5 Bh7 Bh8 Re4 B5g4 Re6 Ng6+ Kf7 Nh4 Rg8 Bhg2 Bd2 Bde4 e1N B4h3 Bb4 Bgf3 Ng2 Bd5 Nf4 Bfe4 Nfh5 Rf2+ Ke7 Rf6 Be1 Rh6 Kf7 Bh1 Ne7 Bde4 Be8 Rd4 Bd7 Bhf3 Nc8 Bd5 Qc1 Bfe4 Qg5 Qa5 Qg6 Qb7 Qg5 Qac7 Ke8 Ra4 Kf8 Qa6 Kf7 Qca7
2Kn2Q1/3BB2Q/2PpQrr1/6Rr/1Nb3R1/3RBqBN/1p1QRnn1/4bk2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 Ke4 h4 e5 a4 g5 c4 d6 f4 g4 f6 g3 a6 g2 f7 b6 a7 Bf5 c6 Bh6 f8B Bg7 c5 Bf6 a5 Qc7 h6 Qb7 h7 Bg7 h5 Nf6 c7 Ng4 c8Q Nf6 h6 Qd7+ c6 Qe7 a6 Qd8 Qd2 Nbd7 Rh2 Rg8 h8B Bh7 f5 Ne8 f6 Nc5 f7 Nf6 Be7 Ng4 f8R Nb7 Na3 Nf2 Rf5 Rf8 Qe6 Rf6 Rg5 Qf8 Nh3 Kf3 Nc2 g1R Ra4 e4 Nb4 Bg8 h7 e3 Bd3 e2 Bf5 Rb8 a8Q e1N a7 Ng2 Ka6 b5 Kb6 Qf7 Kc7 Nd8 Qb7 Rh1 a8Q Rg6 Kd7 Bc3 Be5 Qf6 h8R Bf7 Nd3 b4 Bg3 b3 Rag4 b2 Nb4 Rf1 Qc7 Rb5 Kc8 Ra5 Rhh4 Bg8 Rd4 Qf8 Rhg4 Rd5 Qc2 Be1 Be3 Qf7 Qc3 Ke2 Rd3 Rb5 Qh8 Rc5 Qca5 Rd5 Qh7 Qf6 Be4 Qf3 Bf5 Rc5 Qd5 Rb5 Bd7 Be6 Qe4 Bc4 Qe6 Rf5 Qad5 Rh1 Qd4 Kf1 Qc3 Rf7 Qd2 Rff6 Ng1 Nf4 Rg2 Rh5 Nh3 Nd1 Re2 Ng2 Qa2 Nf2 Qeg8 Bb5 Qaf7 Bc4 Qe6
3q1rQb/Qnn1B2p/n2R1PB1/3R1N1R/1Npr1Bk1/1bNr4/3R3B/K5N1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 f4 c5 b4 e5 d4 a5 Kd2 c4 Kc3 a4 Kb2 e4 d6 e3 b6 e2 f6 Kg6 d7 e1N d5 Ra6 f5+ Kf7 d6 Qe8 d8R Nh6 d7 Ra7 b7 Nc2 g6+ Kg8 f7+ Kg7 g5 Ne1 b5 Ra6 b6 Rg8 f6+ Kh8 Bd3 Nc2 Rh5 Ne3 Nc3 Nd5 Bf4 Nf5 Ra2 a3+ Ka1 Nd6 Rd2 a2 Qa4 Bg7 f8B Nc7 Be7 Rf8 Qa3 Ra8 Qa7 Nba6 b8N Kg8 b7 Bh8 g7 Kf7 g8N Ke6 Nc6 Rb8 g6 Ra8 b8B Nb7 Kb2 a1R g7 Ra3 Bg6 Rb3+ Ka1 Ra3+ Na2 Rd3 Nh6 Rd4 Ncb4 Rd3 Bg5 Rd4 g8Q+ Ke5 Bh4+ Kf4 Nf5 Kg4 Bg3 Rd3 Bh2 Rd4 Bed6 Rd3 Nc3 Qe7 Re8 Rd4 d8R Bd7 Bdf4 Ba4 Rd5 Qd8 Re6 Bb3 Red6 Ne6 Nb1 Nac5 Qa6 Ba4 Rb6 Ra7 Bbe5 Nc7 Bd6 Bc2 Qa2 Ra3 Be7 Rad3 Rbd6 Bb3 Qa7 N5a6 Nc3
K4R2/1pb1N1nN/Q7/qB2n3/1BB1b2B/1nbQpR2/rk1N1N1P/rQ3Q2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Ke3 Kf6 Kd4 d5 a4 g5 c4 e6 f4 g4 c6 g3 h6 g2 h7 Ra6 c5 Qe7 c7 Bd7 c8N Bg7 c6 Bh6 c7 Qf7 Kc5 d4 Bb5 d3 Bd2 e5 Ra3 e4 Bb4 d2 Ne7 Bf8 c8B Bh6 Rf3 e3 Nh3 g1B Nf2 Ra7 Kb6 Qc4 a6 Bf8 a5 Be8 Be6 Qc3 Bec4 Ra8 a7 Bg6 a6 Nh6 Qc1 d1N Nd2 Bg7 Qb1 Rf8 h8B Nd7+ Kc7 Nc5 Kb6 Rac8 a8Q Nb3 Ka7 Nb2 Qb8 Rce8 Qd8 Nd3 Ka8 Ne5 a7 Qa1 Nd3 Bf2 Rf1 Bg3 Nf2 Qa5 Ba4 Qd5 Bab5 Kf7 f6 Ke6 f7 Be4 f5+ Kf6 Ba4 Qa5 Bab5 Rg8 Qb8 Rd8 f8N Rd6 Qd8 Ra6 Ne6 Rf8 Ng5 Rf7 Qdd3 Bf4 Nc8 Rc7 Ne7 Rcc6 Be6 Rc2 Bd5 Ra2 Bdc4 Nef7 Nh7+ Ke5 f6 Nf5 Qe2 Kd4 Qed1 Ng5 f7 Bc7 f8Q Nf7 Qe2 Bge5 Bf6 Ng7 Bh4 Bf6 Rh1 Ne5 Qef1 Bg5 Qf5 Bf6 Qg6 Bg5 Rf8 Bf6 Rg1 Ra1 Rg3 Ra2 Rf3 Ra1 Bd6 Kc3 Qbd3+ Kb2 Bb4 Ra2 Qgg2 Ng6 Qd1 Ra1 Qgf1 Qa3 Qde1 Bc3 Qd1 Bd8 Kb8 Ne5 a8Q Ra4 Qa6 Bc7+ Ka8 Ra5 Bd6 Qb4 Qde1 R5a2 Bc5 Qa3 Bb4 Qa5 Qeb1+
N3R3/3BRQ2/4nB1k/p3KnBr/NN1r1Q2/3R1Pq1/N3pb1B/1b1qR2q b - - 0 1 illegal: No possible last move, all moves rejected
4N2N/1r2k2q/1rB4p/1NQPp2n/nKbBR1Q1/3B2b1/5QQb/1B1R2Nq b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 c5 b4 a5 g4 e5 d4 h6 Kd2 a4 Kc3 c4 f6 a3 f5 a2 b6 Qd7 f7+ Ke7 g6 Qa7 b7 Qa5 g5 Nc6 b8N Nf6 d6+ Kd8 d7 Qa6 g7 Rh7 g8B Na5 g6 Qb6 g7 Qa7 b5 Rh8 b6 Ng4 b7 Nb3 f6 Be7 f8Q+ Kc7 d8N Kd6 f7 Nc5 Bd3 Qb6 Nd7 Qa7 b8Q+ Qc7 Be3 Ra7 Qa8 Bb7 Nf6 Bd5 Ne8+ Kd7 Rh4 Be6 Na3 Nf6 Kb4 c3 Nb5 c2 Qg4 c1B Bgh7 Rb7 g8B Nh5 Bhg6 Rb6 Qag2 Rh7 Bb1 Bg5 Bgd3 Na4 Qc5 Bf4 f8Q Bg3 Nf7 Rg7 Bf2 Bcf4 Nh8 Bh2 Bgh7 Bfg3 Bhe4 Kd8 Bc6 Bc4 d5 Qa7 Bbc2 Rgb7 Rd1 a1Q Bd4 Qc1 Qff2 Qa1 Rf1 Qd1 Bb1 Qf3 Nd6 Ke7 Rd1 Qe4 Q4h3 Qh7 Re4 Qb8 Qg4 Qf8 Qgf1 Qf3 Qfh3 Qh1 Qhf1 Bb3 Q1g2 Bc4 Ne8+
KQB4N/2Q3R1/1P2pr2/nN3k1r/1Qqp4/r1R1q3/N2b2Rn/RN1Q1bB1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 Kf6 Ke4 a5 Kd5 g5 f4 g4 b4 a4 h4 a3 c4 a2 h6 g3 h7 g2 c6 d6 h5 Qd7 h6 Ra4 c5 Ra8 c7 Nc6 b6 Nd8 b7 Ra6 b8Q Bg7 c6 Ne6 b5 Bf8 b6 Ng7 Be3 Qe8 Rh2 Nh5 Ne2 g1Q Bh3 Bg7 Nc1 Qf8 Rg2 Qe1 Bg1 Bd7 c8N Ra8 c7 Be8 Na7 Ng3 c8R Nf1 Qc7 Qe3 Nb5 Bf7+ Kc6 d5 Kb7 d4 Bg4 Ra3 Kb8 Rd3 Ka8 Nh2 Bh3 Bc4 Bg4 Kf7 f6 Kg6 f7 Bf6 Be6+ Bg5 f5+ Kf6 Bd7 Rb3 Be6 Bf1 Bd7 Qe8 f8R+ Qf7 Rfe8 e6 Re7 Qf8 Rg7 Qb4 Na7 Ne7 Nb5 Rf8 h8Q Qc4 h7 Nc6 Qg8 Rf7 h8N Na5 Qf8 Bf4 Qb4 Rf8 Qd8+ Ke5 f6 Kf5 f7 Ra3 Rc6 Bh6 Bc8 Bf4 Ng6 Rh8 Qc7 Rh6 Nh8 Rf6 f8Q Bh6 Bd7 Bg5 Qfb8 Bf4 N1c3 Bg5 Bc8 Bf4 Rb1 a1R N1a2 Bg5 Nc1 R1a2 Ra1 Rf2 N1a2 Rf4 Qe2 Rh4 Nb1 Rh5 Qed2 Qed3 Qc1 Bd2 Qd1 Qe3 Rc5+ Qd5+ Rc6 Qdb3 Rc1 Qc4 Rc3
1rB2qn1/2bN4/RpQr1QK1/R4N1R/B4QBP/1b5p/2n1q3/QkB1R2r b - - 0 1 illegal: No proof kernel
knN5/n3Bbr1/1p1rP3/2q1bpq1/1R4RR/NQBR4/1NN3K1/r2BB1Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 e4 f5 a4 g5 h4 c5 d4 Kc7 e6 g4 d6+ Kc6 e5 c4 e7 c3 e8R c2 h6 g3+ Kg2 Qd7 h7 Ne7 h5 Qc7 a6 Bg7 e6 Rg8 h8Q Qd7 a7 Bf8 a5 Qd8 d7 Bg7 a6 Bf8 h6 Nd5 h7 Qg5 d8R Ba3 Qg7 Qg6 h8B Bf8 Ra4 Qh6 Rb4 Qh4 Na3 Qh5 Be2 Qg6 Nf3 Nc3 d5+ Kc5 d6 Kc6 d7 Nd5 Bd2 c1R Rhh4 Ne7 Be1 Qg5 Nd4+ Kc7 Qb3 Nec6 Ndc2 Ra1 Bd1 Bd6 Qd4 Rg7 Qg1 Be5 Re7 Rc1 Rg8 Ra1 d8B+ Kd6 Ree8 Bd7 Be7+ Kc7 Rd8 Be8 Rd3 Bf7 Rgd8 Nd7 Rg8 Rd8 a8N+ Kb8 Nb6 Na7 Na4 Ka8 Nb2 Nb8 Rd6 Rh7 Rd3 Rd6 Rg7 Qf6 Rgg4 Qg5 Kf3 g2 Bhf6 Nac6 a7 Rg7 Kf2 Bh2 Bfc3 Be5 Qh2 g1Q+ Kf3 Q1e3+ Kg2 Qd4 Qg1 Qc5 Nb1 b6 Nba3 Kb7 a8N Bh5 Nc7 Bf7 Ncb5 Ka8 Na7 Qce3 Qc4 Qc5 Nc8 Na7 Qb3
3N1KN1/2k1BP2/1R2RQ1N/Rqr2Q2/4b3/N2q2b1/pnQ1Bp2/qrR3Qn b - - 0 1 illegal: No proof kernel
n5R1/1n3pN1/rp2NK2/2bBRQ2/b4B1n/Pn5Q/NBQB3k/rqQ4N b - - 0 1 illegal: No possible last move
4Q1BN/1BrqN1Nr/3q1p1R/2rn1pb1/2k3b1/3Q1R1R/4KPqB/B4N1R b - - 0 1 illegal: Other
3KB1r1/4PNR1/BB2q1Rn/2rQ1Q1Q/2p5/1Np1Br1Q/pNk1n1bN/2b5 b - - 0 1 illegal: Other
q2Nb3/1p3NQ1/k1Bbn1np/7R/B1PQrN1R/n4N2/p2rBBQ1/2KQ4 b - - 0 1 illegal: No proof kernel
3K1Q2/B2PB3/1pB1q2R/Q1n1brNB/2p2nN1/1R2QN1q/b4p1Q/2r1Nk2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 f5 Kd4 g5 h4 f4 e4 g4 a4 g3 a6 g2 e6+ Kd6 h6 f3 e5+ Ke7 Kc5 f2 d4 c6 a7 Qd6+ Kb6 Qa3 Kc7 c5 d6+ Ke8 d7+ Ke7 d8B+ Ke8 h5 c4 e7 Kf7 e8B+ Ke6 h7 Kd5 h6 Ke4 e6 Qc3 d5 Qb2 a5 Bb4 d6 Nc6 d7 Bf8 e7 Qb4 a6 Qd2 Bh5 Ke3 e8N Bc5 Ra3+ Kd4 Nf3+ Ke4 Qb3 g1Q Be7 Qg6 Ne1 Ne5 Kd8 Qd3 Nd2+ Ke3 Bg2 Nf6 Bc6 Nd5 Ndf3+ Ke2 Be3 Rf8 h8Q Nf4 h7 Rf5 Nf6 Bd4 Ng4 Qe6 Qc3 Rb8 Rb3 Ra8 Rh4 Kf1 Qc1 Rb8 a8Q Qc3 a7 Ned3 Qe5 Nc5 h8N Qd3 Qd6 Be5 Nf7 Qc3 N7g5 Qd3 Ng1 Qc3 Bd4 Qf3 Qe3 Qh3 Ng1f3 b6 Bc3 Rb7 Qab8 Rc7 a8Q Bb7 Qa5 Ba8 Bb2 Ra7 Qbc7 Qd5 Qh6 Qe6 Qf8 Bb7 Bg6 Ra6 Rh6 Ba8 Bh5 Ra7 Ba4 Be4 Bc6 Bb1 Ba1 Ba2 Bd4 Bh8 Be5 Ra6 Qa7 Bf6 Bb8 Be5 Qc7 Ra8 Qb5 Ra4 Qa5 Rb4 Ba7 Rb5 Rd3 Rb1 Rb3 Ne2 Qf4 Rc1 Qg3 Nf4 Qh2 Bc3 Qe5 Bd4 Qe4 Be5 Qe3
q3BnR1/2B1Np1N/4Qbpn/1K2npB1/2Q5/1R2RQ2/r2r1P1Q/kRB2n2 b - - 0 1 illegal: Other
1bQR2B1/nbp3pR/p1PN1n1B/5K1p/k4N1Q/1q3Qr1/4R3/Rn1B1BQ1 b - - 0 1 illegal: No possible last move
q1N4K/2B2B2/pb1pRN2/BQpn1b2/Q3Rn1b/2PQR2B/1R5p/1rk2Q2 b - - 0 1 legal: proof: g4 f5 gxf5 g5 a4 b5 axb5 e5 h4 g4 d4 a6 dxe5 Ra7 Qd3 Rb7 Qd1 Rb6 Kd2 Rg6 Ke1 Rg5 hxg5 Bc5 Nd2 Ba3 Nb1 Bf8 Kd2 Kf7 Kd3 h5 Kd4 c6 b4 h4 f4 g3 e4 h3 b6 g2 b5 h2 f6 Kg6 c3 Qe7 e6 Bh6 Ke5 Qd8 f7 Nf6 f8Q Nd5 b7 Qb6 f5+ Kh7 e7 Bg7+ f6 Kg6 e8R Ne3 Nd2 Bh6 f7 Nc2 Re6+ Kh7 Kf6 Ne3 e5 Qc7 b6 Qd6 Ngf3 g1B Nd4 Qa3 Nf5 Qb3 Ne7 Qa4 Bh3 Nf1 Ne4 Qd4 Bf4 Qa4 Qd3 Qa3 Re1 Nd2 Re3 Bf2 Rhe1 Bh4 Qe8 Nb3 f8Q Qc5 R1e2 Qb5 Rb2 Nc1 Kf7 c5 Kf6 Nc6 b8Q Nb4 b7 Rg8 Kf7 Ne2 g6+ Kh8 g7+ Kh7 Bg3 Bf4 Nf6+ Kh6 Re4 Rh8 g8B+ Kg5 Kg7 Nd5 Bf7 Qb6 Re3 Qa7 Re4 Rh7+ Kg8 Rg7+ Kh8 d6 Qa4 Qa8 Bf2 Bd7 Qbe8 Bd2 b8B Nef4 Nc8 Bc1 Bc7 Be3 Re7 Bf5 e6 Bd4 Qeb5 Be5 Ng4 Bf6 Re8 Bd8 e7 Rg6 Nf6 Rg7 Ba5 Bb6 Re6 Ne2 Bd4 Kf4 Be3+ Kf3 Bg5+ Kf2 Rd8 Ke1 e8R Rg6 Re4 Rg7 R8e6 Rg6 Rde8 Rg7 Bh5 Rb7 Bf7 Rb8 Ng4 Rb7 Bd8 Rb8 Bc7 Rb7 Ne3 Nef4 Ng4+ Ne3 Bh5 Bh7 Rb3 Ng2 Rh6 Bg6 Rf4 Rb8 Qc6 Ba7 Re7 Rb4 Qcb5 Bb6 Qf6 Bh7 Bf7 Be4 Qf5 Nd5 Qf1+ Kd2 Qg6 Bf3 Re3 Be4 Qh7 Bb1 Rhe6 Bg6 Rc4 Ngf4 Nf6 Bb1 Ra3 Rb2 Rb3 Bd3 Qe4 Rb1 Rb2+ Bc2 Qe2+ Kc1 Qf1+ Be1 Qd4 Bg6 Qdd3 Bf5 Qf3 Bf2 Rce4 Bh4 Qff1+
BQBbB1R1/KR1B3r/nN1Qn2p/2qQ3P/4N1p1/BP1q4/R6k/8 b - - 0 1 illegal: No possible last move
R4R1b/NrBR4/3qBQ2/bBP4K/1Qn1r1N1/2qkq1Q1/2n3PR/2R5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 Nf6 d4 Ng8 dxc5 Qc7 Ra3 Qb6 Ra1 Qd8 hxg5 a5 bxa6 Bb7 axb7 Qc8 b4 Kf7 b5 Qc7 b6 Nc6 b8R Qd8 b7 Ke8 c3 e5 Ke2 Kf7 Qd3 d5 Kf3 h5 f6 Nce7 c6 Ke6 g6 d4 f7 Kd5 g7 h4 Kg4 e4 f4 h3 f5 e3 c7 h2 c8R e2 f6 e1B Rc7 Ng6 Qg3 Qc8+ Rd7+ Ke4 c4 d3 Nf3 d2 Ne5 N8e7 g8B Nc6 Na3 Ra7 Nb5 Bg7 f8Q Nb4 f7 Nc2 Ra8 d1Q+ Be2 Bf6 b8Q Ba5 Bf4 Rh6 Qe7 Bh8 f8R Rh4+ Kg5 Rc7 Na7 Qd5 Qbb3 Rb7 Qf6 Qc7 Qb2 Qd4 c5 Qc3 Rac1 Qc6 Rhe1 h1Q Be6 Qg1 Bb5+ Qge3 Rh1 Qd5 Rh2 Qd1 Nf7 Ne5 Nh6 Nc4 Qb4 Qdd4 Kg6 Kd3 Bc7 Re4 Ng4 Qd6 Kh5
1B1r1Q2/1NB5/4NP2/1K2RNB1/1RB3q1/r1qbB3/kP1nr1qQ/1r1R4 b - - 0 1 legal: proof: e4 f5 exf5 d5 g4 h5 gxh5 b5 c4 e6 cxd5 Ba6 a4 Nd7 axb5 Ba3 Nxa3 Ndf6 b6 Ng4 Nb1 Bb7 Qxg4 Ba6 Qd1 Bc8 Ke2 Kf7 Kd3 c5 Kc4 g5 h4 a5 f4 e5 d4 e4 f6 e3 f5 a4 h6 g4 b7 a3 b8B g3 d6 g2 d5 a2 h5 e2 d7 e1R d6 Re7 h7 Qc7 d8B Re2 d7 Re4+ Kb5 c4 h6 c3 Be3 c2 Nd2 c1Q Nh3 g1R Qe2 Qh2 Nb3 Ra6 Bdc7 Rg6 Nd4 Qf4 Qh2 Qc3 Rd1 Qg4 Nf4 a1Q Nfe6 Ra3 Bc4 Rg5 Rd3 Qf1 d8B Qff3 Rhd1 Qfg2 Nc5+ Be6 Nb7 Bd5 Ne6 Re5 Be7 Be4+ Rd5 Bd3 Rc5 Ke8 f7+ Kd7 f8Q Nf6 Bed8 Rhg8 h8N Ne4 h7 Nd2 Ng6 Rh5 h8R Rh7 Qf4 Rh1 Bg5 Re4 f6 Re1 Bg1 R4e2 Be3 Rh1 Ne7 Rg1 Ra1 Rb1 Rh3 Rh8 Nf5 Rg8 Kb6 Rh8 Ra5 Rg8 Ka6 Kc6 Qh2 Rh8 Qf7 Rd8 Qf8 Rg1 Rd1 Rh1 Bb5+ Kd5 Bc4+ Ke4 Re1 Qc1 Bg1 Bc2 Bb5 Kd5 Rc3 Bd3 B1e3 Qc2 Rf1 Re1 Kb6 Rb1 Rd1 Re1 Ra4 Re2 Re4 Ra7 Ra3 Qc3 Ba6 Bb5 Re5+ Kc4 Ra4+ Kb3 Rb4+ Ka2 Rb3 Bd3 Bc4 Ra4 Kb5 Ra3 Rb4+
Q2R2R1/1qb1kPBn/3NPn1Q/2rr2p1/2bB3R/7R/2R5/b2B1NNK b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 f5 b4 a5 bxa5 e5 dxe5 Nh6 e4 Ng8 exf5 Bc5 Qe2 Ba3 Qd1 Bf8 f4 g5 Kf2 c5 Kg2 c4 h4 c3 h6 c2 e6 Qe7 f6 Bb7 f7+ Kd8 b6 Qf6 f5 Ra6 h5 Qe7 h7 Nf6 h6 Nc6 d6 Qc7 d7 Rg8 h8N Qc8 h7 Bc5 f8B Qb8 Rh3 Qa7 Kh1 Bf2 Ra2 Be1 Be3 c1B Qh5 Qa8 Bg7 Ne4 f6 Nd4 Be2 Nf3 Nd2 Ne5 Rc2 Bg3 Bd4 Ng6 Qh6 Nf8 Nf1 Bd5 b7 Rd6 a6 Bb2 a7 Ba1 Bd1 Bc4 Rh4 Qb8 a8Q Rd5 Rh3 Qc8 b8R Bf4 Rh4 Bc7 Rb3 Rc5 Rbh3 Qb8 f7 Qc8 Ng6 Nf6 h8R N8h7 Ne5 Ke7 d8R Re8 Rg8 Qb7+ Nef3 Rd5 N3d2 Rc5+ Ne4 Rf8 Rb8 Rd8 Rc8 Rd6 Rcd8 Rdd5 Nd6
b1B2kb1/1P2N3/Rb1rp1K1/B7/4RQQ1/1b3NR1/P1B3n1/1nNq1N1N b - - 0 1 legal: proof: c4 b5 b4 a5 bxa5 d5 cxd5 g5 e4 c5 h4 f5 hxg5 c4 exf5 c3 dxc3 Qb6 c4 Ra6 c5 Qc7 Qc2 Rb6 axb6 Qd6 Qd1 Qd8 Ke2 h5 Kd3 h4 Ke4 h3 g4 h2 f4 b4 f6 b3 c6 b2 f5 Qc7 d6 Qa7 f7+ Kd8 f6 Bd7 c7+ Kc8 g6 Rh7 g5 Rg7 Bd3 Rh7 g7 Qa6 g6 Nh6 g8N Qa7 g7 Bb5 d7+ Kb7 d8N+ Kc8 Nc6 Kd7 c8B+ Kd6 Bd2 Qa6 Nh3 Ba4 Ba5 Qb7 Nf2 Bb5 Nd2 b1B Bc2 Nd7 Qg4 Bc4 Nf1 Bb3 Rg1 Qc7 Nd4 h1B+ Nf3 Qd8 Rg3 Ne5 Qf4 Ng4 Kf5 Bg2 Nh1 e6+ Kg5 Rh4 Ne7 Ne3 g8Q Bg7 f8N Rh2 Qe4 N5c4 f7 Nd2 Nd7 Bd4 f8R Rh5+ Kg6 Rd5 Nde5 Bc5 Bd3 B1c2 Qf7 Nb1 Qg4 Qd7 Qff4 Rd4 N3d2 Ba8 Ndf3 Ng2 b7 Rd5 Rf5 Bb6 Rh5 Qa4 Rhh3 Qd4 Be4 Qd1 Nd3+ Re5 Nc1 Bd3 Qff5 Rd5 Qff4+ Kc5 Rh5 Na3 Nf5 Qd2 Kg5 Bb1 Ne2 Rd8 Bc3 Bd3 Re1 Qd1 Nc1 Nb1 Kf6 Bdc2 Bd3 Kc6 Bd2 Rd6 Ne7+ Kc7 Ra5 Kd8 Ra6 Ke8 Ba5 Kf8 Bh7 Bg6 Re5 Bf7 Bc2 Bg8 Re1 Qd2 Re4 Qd1 Kg6+
1n2QQ2/R1KN3n/R3p1Pb/5Pb1/2B1R2b/1N1QNk2/N1pn4/3rB2N b - - 0 1 legal: proof: b4 b5 c4 a5 e4 f5 exf5 d5 cxd5 Qd7 g4 Na6 a4 Qc6 f6 Qb6 axb5 a4 Bd3 Qa5 bxa5 Nb8 Be2 Kd7 Bf1 Ke8 g5 g6 h3 Bg4 f7+ Kd7 f4 Ra6 f5 Rf6 gxf6 g5 b6 Bh5 Ra2 g4 Ra3 g3 Ra1 Bg4 hxg4 Kd8 Ne2 Kc8 Ng1 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 Kf4 Kc5 h5 d4+ Ke4 d6 e6 b7 a3 a6 a2 a7 g2 a8N c6 Kb6 c5 g5 h4 d7 c4 d8R c3 g6 c2 d5 h3 d6 h2 d7 Bd6 f8N Ne7 f7 Nec6 Nh3 g1B+ Nf2+ Ke5 Bc4 Nb4 Nc3 Rh5 Bd2 Kd4 Nc7 Be7 N7d5 N8a6 Ra8 Bg5 b8Q Bh6 Qe8 Nb8 d8N Rh3 Qc6 Rd3 Be1 Rd2 Qe2 Rd1 Ne3 Nd5+ Kb7 Nf6 Ra7 Bg5 Kc7 Nh7 Nb7 Ke5 Qe8 Kf4 Qd3 Kf3 Na5 Bh6 Nfg4 Bf2 Nb3 Bg5 Rg1 h1N Nd7 Bfh4 f8Q Ng3 Nf2 Nf1 Nh1 Nd2 Rg4 Bh6 Re4 B6g5 Rb1 a1B Rb2 Bh6 Rba2 B6g5 R2a3 Bh6 Na2 Baf6 R3a4 Bfg5 R4a6
r2nB3/q1Q2n2/RN3B1k/pPR1N1p1/2B1n1r1/K5n1/1RQR2QP/7R b - - 0 1 legal: proof: e4 f5 exf5 d5 g4 h5 gxh5 b5 a4 d4 axb5 d3 cxd3 e6 d4 Bd7 d5 Bc8 Bh3 a6 Bg2 Bc5 Bf1 Ba7 b6 Bb7 bxa7 Bc8 d3 Qh4 Qf3 Qf6 Qd1 Qd8 Bg5 c5 Be2 c4 Bc1 c3 Bf1 Bd7 Bf4 Bb5 Bc1 Bc4 dxc4 Qe7 Ne2 Qh4 Ng1 Qd8 f4 Kf8 b4 g5 f6 c2 Kd2 e5 Kc3 e4 Kb3 e3 f7 Kg7 f8R e2 h6+ Kg6 c5 e1N h7 Kh6 d6 Qa5 f5 Nd7 b5 Ndf6 d7 Ne8 d8R Qc7 c6 Nd3 f6 Qf4 c7 Nf2 c8R Kg6 f7 Qe4 Ka3 Qh4 Nd2 Qe4 Bc4 Qd5 Bb2 c1N Ngf3 Qd7 Bf6 Nb3 Qc2+ Qd3 Rc5 Ne4 Ne5+ Kh5 Rab1 a5 Rb2 N8d6 Rfe8 Ng3 f8Q Qd5 Qg7 Qf7 Re6 Nb7 Ra6 Qc7 Rd3 Qb8 Qc7 Nh6 Rdd5 Rc8 h8Q Nd8 Qhh7 Qb6 Qhe4 Nhf7 Qg2 Kh6 Rd6 Nd4 Rd7 Nde2 Rd3 Nc3 Rd6 Rab8 a8B Qa7 Bc6 Ra8 Be8 Nce4 Bb3 Rcb8 Ndc4 Rb6 Rd2 Rd6 Nb6 Rd4 Qc8 Nf2 Ba2 Rg4 Qc7 Nfe4 Bc4
B4N1Q/2QPR1K1/RnB3P1/k1n1B1p1/4qN1q/3Q1B2/2p2R1p/1rB1n3 b - - 0 1 legal: proof: c4 b5 h4 g5 f4 f5 a4 d5 cxd5 e5 axb5 Nc6 g3 Nb8 h5 Be6 Ra6 Bf7 Ra1 Bg6 hxg6 Bc5 fxe5 f4 Ra5 f3 Ra3 Be3 Ra1 Bf4 gxf4 Qd6 Nh3 Qe7 Ng1 Qd8 Kf2 Kd7 Kg3 h5 b4 a5 e4 c5 d4 Kc7 d6+ Kb6 e6 a4 e5 a3 d5 f2 f5 h4+ Kg4 c4 d7 a2 d6 h3 f6 c3 Kf5 h2 f7 c2 f8R Ra7 e7 Qc8 e8B Qc5 d8Q+ Qc7 e6 Ra5 e7 Ra6 Qd3 Ra7 Nd2 Ra3 Be2 f1N Nh3 Rh5 Nb3 Na6 Nd4 Rh6 Ne6 Ra4 Bf3 Rh7 Nhf4 Ra3 Bec6 Ra5 e8B Rh4 Ba8 Nd2 Bec6 Nf1 d7 Ne7+ Kf6 Nb8 Kg7 Nd2 Re1 Na6 Rf6 Rg4 Qh8 Nd5 Nf8 Rg1 Re7 Nc5 Rff7 Ra6 Rf5 Qe5+ Rf6 Ka7 b6+ Kb8 b5 Qe4 b7 Kc7 b8B+ Kb6 Be5 Ka5 b6 Rh1 b7 Nb6 Bd1 Nf3 b8Q Ne1 Bf3 Rf1 Qc7 Rh1 Rb1 a1Q Rb2 Qa3 Ra2 Qaa4 Rd6 Kb4 N4e6 Ra7 Qe2 Qh4 Rd2 Rg1 Bcb2 Ng2 Nf4 Rb1 Qd3 Ne1 Rf2 Ra5 Bc1 Ra7 Bcb7 Qc6 Ra3 Qe4 Bc6 Ra5 Rc3 Ra2 Ra3 Raa1 Ra7 Ra6 Bcb7 Ka4 Bc6+ Ka5 Rxa6+
2RBR2Q/kQBP3r/2Q1pp2/KprR2N1/4B3/2N2B2/3Pp3/1Bb3rb b - - 0 1 illegal: Other
1b3k1N/3nr2b/QR2n1QN/K2Rn1PQ/Q3qPB1/N2Rb3/1B6/q2Q2r1 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 g4 e5 f4 h5 d4 c5 Kd2 c4 Kc3 h4 a6 h3 a7 h2 g6 e4 d6 e3 Kb4 c3 b6 c2 f6 e2 g7 e1N f7+ Kd7 g5 Nd3+ Ka5 Nc5 d5 Qe8 b7 Rh3 Bb2 c1B Qh5 Be7 f8N+ Kd8 d7 Rb3 Ne2 Rh3 Ng6 Rh4 Nd4 Na4 Na3 Rh3 Nf5 Rd3 Rb1 Rg3 Nh6 Bd6 Nh8 Ke7 d8R Nd7 b8Q Rg1 Qb4 Ne5 Be2 Nf6 g8Q Bf5 Bg4 Bh7 Qgg6 Nc5 Qa4 Bb8 d6+ Kf8 d7 Be3 Rd1 Ne6 Rd3 Rc1 Rhd1 h1Q Rb3 Qe4 Rd5 Rg1 Rb6 Qb1 Rd3 Qa1 Rd5 Bc7 Rd3 Rb8 a8Q Rb7 Qa6 Bb8 Rc8 Rc7 d8Q Re7 Rc5 Nfd7 Rcd5 Nf6 Qd6 Nfd7 Qge4 Qg6 Qf3 Qe4 Qfd1 Nd8 Qdg6 Ne6 Qdc2 Qh1 Qc1 Qe4 Qcd1
1NQ1KnrB/1b1R1Q2/1k2PB2/1rR1Rq2/5N2/4Q2b/r2bqP2/BB3nB1 b - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 f5 e4 d5 cxd5 e5 exf5 e4 a4 e3 axb5 Na6 dxe3 Bb7 e4 Nb8 e5 Bc8 Kd2 Kd7 Ke3 c5 Kf4 Kc7 g4 h5 b4 a5 d6+ Kb6 g6 a4 d7 h4 e6 h3 Ke5 c4 g5 h2 g7 c3 f6 a3 f7 c2 g6 a2 Na3 Be7 f8B Kb7 b6 Ra6 b5 Rh5+ Bg5 c1Q Qf3+ Qc6 Re1 a1R Ne2 Rh3 Nc2 R6a4 Nf4 Qe8 d8R Ra6 Nd4 Rd1 Rd7+ Ka8 b7+ Ka7 Bd3 Rh5 Qe3 Rh6 Bb1 Ba3 Bf6 Ne7 g8Q Qg2 g7 Qgg6 Qf7 Nd5 g8Q Bc1 B8g7 Ra2 Kd6 Bd2 Bh8 Rh5 b6+ Ka6 Rhg1 h1B Nc6 Qf5 Rg5 Bg2 Re2 Rg1 Re1 Qg6 Rc1 Qh7 Rc5 Bh3 Re5 Qf5 Qgf8 Qd8 Q8e8 Rg8 Qef8 Nb4 Q8e8 Qc7+ Ke7 Nc2 Qef8 Rhg5 Ke8 Qd6 Rc7 Nd7 b8B Rh5 b7 Qdd3 Ba7 Qf1 b8B Bb7 Bb6 Q1d3 Ba5 Qe2 Bc3 Kb6 Ba1 Rg3 Q8g8 Nf8 Rd7 Rg4 Bd6 Rg7 Nb8 Rg2 Qd4 Ne3 Qd3 Nf1 Qe3 Rg3 Red5 Bc1 Ke7 Qb5 Nd3 Rh4 Qh6 Rb4 Qe3 Nh7 Qc8 Bd2 Ke8 Nf8 Bf4 Rg2 Bh2 Rg8 Nf4 Qe2 Bg1 Rb5 Re5
1bBqn2Q/3RP1Rb/3knN1b/2qPq3/B2r4/3NB1B1/RK4BN/Q3r3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Na6 cxd3 Bc5 d4 Bf8 d5 Nb8 h4 Kd7 e4 g5 d4 c5 Kd2 f5 Kc2 c4 e6+ Kd6 e5+ Kc7 h6 c3 h5 g4 h7 g3 a6 f4 d6+ Kb6 a7 g2 d7 Kc7 h6 f3 b6+ Kc6 d5+ Kc5 b7 f2 e7 Qa5 d8R Qb4 e8B Bd6 e6 Bg3 e7 Qa5 Rd7 Bc7 Nf3 g1Q Bg2 f1Q Ra2 Qc4 Nbd2 Qe3 Nh2 Qe5 Rg1 Nc6 b8B Nf6 Kb1 Rg8 h8Q Nd4 h7 c2+ Kb2 Rg4 Qe1 Bd6 Qd1 Qd8 Ne4+ Kb4 Be3 Qc5 Qa1 c1B+ Kb1 Bd2 Kb2 Ba6 Bc7 Bd3 Bb8 Rf4 Bc7 Rb8 a8B Rf1 Bc6 Re1 Ba4 Ra8 Bh5 Ne8 Nf6 Ra6 Bg4 Ne6+ Bd4 Bh6 Bb8 Qh5 Be3 Bg3 Bc7 Qe5+ Bd4 Qc4 Bf1 Nc5 Bad1 Qe3 Qg8 Qb5 h8N Qb7 Ng6 Bd6 Qh8 Qa7 Ne5 Bh7 Nd3+ Kb5 Bf5 Ra4 Rg7 Qf4 Bf2 Rd4 Be3 Kc4 Bg2 Be5 Ba5 Bb8 Rb7 Qe4 Bd7 Ne6 Bc7 Qa5 Bg3 Qe5 Bc8 Qb5+ Nb4 Kc5 Ba4 Kd6 Ra7 Qc4 Nd3 Qc5 Rd7+
2BR2Q1/rbr2R1K/r1N1bQ2/n2nN3/1Rr4P/3BP1Q1/4Qq1q/2kQB3 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Bb6 Bh3 Ba6 Bf1 Ba5 bxa5 Bc8 Kf2 Kd7 Kf3 g5 Ke4 c5 Kf5 c4 h4 g4 d4 f6 Kg6 f5 a6 f4 h6 c3 b6 f3 h7 c2 d6 Kc6 d5+ Kb5 b7 Kb4 d7 Kb3 a7 g3 e6 a3 e7 f2 e8Q a2 d6 g2 Nd2+ Kc3 Ndf3 Qa5 d8R Nf6 d7 Qb6 Rb1 a1Q Ne5 Nc6 b8Q Qe3 Ngf3 Bb7 Nd4 Nd5 Rb4 Na5 Ndc6 Qa2 Rh3 Rf8 h8Q g1R+ Kh7 Rf6 Qhg8 Rg4 Rf3 Rc4 Rf5 Rg6 Rf7 Qg3 e3 Qh2 Bd3 f1B Qef8 Re6 Qe2 Bh3 Qfg7 Rd6 Qf6 Be6 Ba3 c1R Qc7 Rc8 a8B Ra1 Qb8 Rc7 Qg3 Ba6 Bb7 Qf2 Bc8 Bb7 Rh8 Qh2 d8Q Qd2 Rf8 Qe1 Qd7 Qef2 Rd8 Ra2 Nd4 Rb6 Ndc6 Ra6 Bc1 Nb3 Bd2+ Kb2 Be1+ Kc1 Qe8 Ra7 Qeg8 R2a6 Qg1 Na5 Q1g3 Ba8 Qb5 Bb7 Qa4 Qf1 Qb3 Qff2 Qbd1#
3Kn1q1/2R1Qrq1/1RRP2Q1/1n1r1Q1Q/2r1B2r/1P1NN3/1B5b/1b1N1Q1k b - - 0 1 illegal: No possible last move
2KNnR2/1B1R1b2/1Q6/3qkPqq/b1n1PB1R/2n3N1/1R1N1Qq1/Rr4Q1 b - - 0 1 legal: proof: e4 f5 c4 d5 cxd5 h5 a4 b5 axb5 f4 g4 a6 gxh5 Qd7 Ra3 Qd6 Ra1 Qd8 Bc4 e5 Qe2 a5 Qd1 Bc5 Ke2 Be3 Ke1 Ra6 Bd3 Rf6 Bf1 Rf5 exf5 e4 Ke2 Bb6 Ke1 e3 Ke2 Bc5 Kf3 e2 Kg2 Be3 fxe3 Be6 Kf2 Bc8 Kf3 Kf7 Ke4 Kf6 b4 e1N d4 c5 h4 g5 b6 c4 b5 f3 h6 c3 h7 f2 h5 c2 d6 a4 Kd5 a3 h6 a2 b7 g4 e4 g3 d7 g2 Kd6 Qe7+ Kc7 Qe6 d8R Bd7 d5 Bc6 d6 Ne7 b6 Bb5 d7 Nf3 Be3 Nd5+ Kc8 Nd2 Rh4 Na6 b8R Nc3 b7 c1Q Ne2 g1Q Ng3 Nc4 Nd2 Ke5 Rf8 Rg8 h8R Ba4 h7 Qd5 d8N Nc7 Bd3 Qh1 Qg1 f1B Rf7 Qf3 Rd7 Qh5 Be2 Rg7 Rf8 Ne8 h8Q Qc2 Qg8 Rg6 Qf2 Rb6 Qg4 Rb1 Bd3 Qg5 Qd1 Be2 Qdg1 Bh5 Bf1 Bf7 Be2 Nb2 Ba6 Qd1 Ra8 Qdh5 b8Q+ Kf6 Qb5 Ke5 Bb7 Nc4 Qa6 Rd1 Rb1 a1Q Qb6 Qa2 Rb2 Rb1 Ra7 Qb3 Ra6 Qbd1 Ra7 Qdf3 Ra5 Qg2 Ra8 Bc6 Ra1 Ba4 Bf4+
2b1q1N1/B3QqP1/Qbkr3N/b3NPR1/1r2BR2/N3RB1K/1q1N4/3q3n b - - 0 1 illegal: No possible last move
k1b1RN1Q/5n2/1R1r3b/N1R4Q/2K1P1Bq/bPb1Rn2/Qb1B1R2/5B1b b - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 gxf5 g5 h4 d5 cxd5 e5 fxe5 g4 a4 Ra6 axb5 Rh6 Rh2 Rh5 Rh1 Rg5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 e4 Kd7 Ke2 c5 Kd3 Kc7 e6 Kb7 b3 h5 g6 a4 e7 a3 e8R h4 d6 a2 d7 h3 f6 g3 g7 h2 f7 g2 b6 Be7 f8R Rh4 Na3 Rh7 Nh3 g1B Rf2 Bg5 Nc4 Bh6 Na5+ Ka8 b7+ Ka7 Ng5 Rh8 Ne6 Nc6 b8R Bb7 Kc4 Nd4 Nf8 Qh4 d8Q Bc8 Qh5 Nf3 d4 Rh7 Rb6 Ka8 d5 Rh8 Rb1 a1B d6 Bc3 d7 Rh7 Bd2 Rh8 Re2 Bgd4 Rc1 Rh7 Rg1 h1B Rf2 Bb2 Rg5 Bdc3 Re1 Ba3 Re3 Bab2 Kb5 c4 Rc5 Bf4 Qe7 Bg5 Qg4 Nh6 Qe5 Rh8 g8B Rh7 Be6 Nf7 Qh8 Rh6 Bf5 Rd6 Qgh5 Bh6 B5h3 Bb4 Be6 c3 Kc4 c2 Beh3 B2c3 Bg4 c1B Be1 Re6 d8Q Bba3 Qd2 Rd6 Qa2 B1b2 Bd2
6b1/rr1NQP2/bQ1P1N1n/NkbRr1R1/bN3Q2/2B2B1K/3r2N1/1B3n2 b - - 0 1 legal: proof: h4 d5 f4 g5 hxg5 f5 e4 e5 fxe5 b5 c4 f4 cxd5 Bg4 a4 Bc8 axb5 Qd6 Nh3 Qg6 Ng1 Qf5 exf5 Be7 Rh2 Bb4 Rh1 Bf8 Kf2 Kd7 g4 h5 Kg2 c5 b4 a5 d4 f3+ Kh3 f2 b6 a4 b7 c4 d6 Kc6 d5+ Kb5 g6 a3 d7 h4 d8N a2 g7 Rh5 g5 Bc5 d6 Be3 g6 Ba7 e6 Nd7 b8Q+ Bb7 f6 Rh6 f7 Ne5 e7 Bb6 e8Q+ Ka6 b5+ Ka5 Bb2 c3 Qg4 c2 Qf4 c1R Be2 Nd7 Nf3 Rh5 Rg1 Be4 Nbd2 Nh6 g8B Nf6 g7 Rc7 Rg5 Rb7 Qe7 Bh7 Ne1 f1B+ Ng2 Ne4 Bf3 Raa7 Rd1 Bc5 b6 a1R Nc6+ Kb5 Nc4 Nd2 Nb4 R1a2 Na5 Bfd3 Qbd8 Nf1 Bc3 Rd2 Qb8 Bc2 Qbc7 Ba4 Qb8 Bb1 Bh7 Bg6 g8N Be4 Rd5 Re5 Nf6 Bd3 Qbc7 Be2 Bc2 Bd3 Qcd8 Bh7 Bb1 Bg8 Qdc7 Ng3 Rg1 Nf1 Qb8 Ne3 Kh2 h3 Kg3 h2 Kh3 h1B Qbc7 Rb8 b7 Nf1 Qcd8 Rba8 b8N Rb7 Nbd7 Ra6 Ne1 Raa7 Rg5 Bg2+ Kh4 Bh3 Ng2 Bf5 Qc7 Bd3 Kh3 Be2 Nc4 Bd3 Ncb6 Ka5 Qcd8 Ba6 Nc4+ Kb5 Na5 Rb8 Qc7 Rbb7 Qb6+
5Q2/BP5r/1B3rB1/N1BbbNRB/3bqb2/K5Pb/bRQN1Q2/1r5k b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Qf6 cxd5 Qd8 Nh3 g5 Qc2 Nh6 Qb3 Nf5 gxf5 g4 Nc3 g3 Qa4 g2 Qd1 Na6 Ng1 Nc5 Nb1 Ne4 Nf3 Bb7 Ng1 Ng3 hxg3 Bc8 e4 Kf7 d4 a5 Kd2 h5 Kc2 c5 Kb3 h4 d6 f3 d7 h3 e6+ Kf6 e7 h2 e8Q a4+ Ka3 f2 b4 c4 d5 c3 b6 c2 b7 Qa5 d8B+ Be7 b8B Qa7 e5+ Kg7 d6 Rh4 d7 Ba6 f6+ Kh7 e6 Rh5 f7 Kg6 Be2 Kf5 f8Q+ Ke4 Bb6 f1B d8N Bf6 b5 Be5 e7 Qb7 B8a7 Rh7 Nf3 g1R Nd4 Bh3 Bh5 Qc6 Bb2 c1B Qef7 Bcf4 e8B Ke3 Nb7 Kf2 Qf5 Kg2 Beg6 Qe4 Na5 Rb8 Bc1 Rf1 Nd2 Rf2 Re1 h1B Qc2 Bc8 Re3 Be6 Rb1 Ba2 Rb2 Kh2 Bc5 Bf3 b6 Kh1 Reb3 Rf1 Rb5 Rbb7 Kb4 a3 Ka4 Rbf7 b7 Rf6 Bcb6 Be6 Bc5 a2 Ka3 a1B Bcb6 Ba2 Rc5 Be3 Rd5 Bfg2 Qf2 B3f4 Nf5 Rg1 Ne7 Bd4 Rg5 Rf1 Nf5 Bde5 Rb3 Bad4 Bb2 Rc1 Bc3 Rb1 Rb2 Qd3 Bc5 Bgd5 Bcb6 Qe2 Bb4 Qe4 B4c5
rB4bB/QrB1nBq1/BQ1b4/1P2Q1p1/5Rn1/1KN3n1/Nb1kN2P/1R6 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 d4 Kd7 Kd2 Kd6 Kc2 g5 f4 c5 h6 e5 a6 c4 f6 c3 f7 e4 a7 e3 f5 e2 f6 e1B h7 Bf2 Ne2 Bg7 f8Q+ Ne7 f7 Qd7 Qe8 Qg4 f8Q Qf3 Kb3 c2+ Nbc3 Qg3 Rb1 Qh3 Bf4+ Be5 Qf6+ Kc7 d6+ Kb6 d5 Kc5 d7 Nbc6 d8N Nb8 d6 Qe3 d7 Bd6 Nc6 Qe5 d8B Nd7 Nb4 Bd4 Bc7 Bb7 Qh6 Qg7 Nba2 Nf6 Qe1 Rb8 a8B Ng4 Qf2 Bc6 Bg2 Rb7 Rhf1 Rf8 h8B c1N+ Ka4 Kc4 Bd5+ Kd3 Bf7 Bf6 Qa7 Bd5 Be5 Kd2 Rf4 Be4 Qeb8 Bh7 Qg6 Bg8 Qh6 Nd3 Kb3 Ndf2 Qe8 Nh1 Qeb8 Rb6 Bb7 Ng3 Ba6 Rb7 Qg6 Re8 Qf5 Rc8 Qb6 Re8 Q8a7 Ra8 Bb8 Bb4 Bec7 Bd6 Na4 Bc3 Qe5 Bb2 N4c3
2RR2R1/2p2nPk/1P1b4/2RR1n2/8/bBnN4/1rNKNrQq/2rQQ1B1 b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 b4 h5 d4 a5 b7 e5 b5 e4 g7 Kf7 f6 Kg6 b6 e3 f7 h4 d6 e2 d7 h3 d5 a4 d6 h2 Be3 a3 Kd2 e1N Bc4 a2 Na3 Nf6 g8Q+ Bg7 f8Q Na6 b8N Qc8 d8R Nc2 d7 Nd5 Nc6 Nc3 Qf2 Nc5 Rc1 a1B Bb3 Nb7 Nb4 Nd6 Qfe1 Bb2 Nd3 Nf7 Ne2 Nd4 Bg1 Nf5 Nc2 Ba3 Re8 Qb7 Rc8 Qg2 d8R Rh3 Rd5 Rf3 Rdd8 Ra4 Rd5 Rb4 Rdd8 N7d6 Qd5 Kh7 g6+ Kh6 Qe4 Be5 g7 Rf2 g8R Nf7 g5+ Kh7 Qg4 Bd6 g6+ Kh6 g7 Kh7 Ba4 Qh3 Qg2 Rb2 Bb3 Rf4 Bc5 Rf2 Rf1 h1R Be3 Rf4 Bg1 Qh6 Rf3 Qh2 Rg3 Rf2 Rg5 Ne7 Rc5 Nf5 Rd5 Be7 Qef1 Rf3 Bf2 Rb1 Na1 Nb5 Rcc5 Nc3 Nc2 Rb2 Qa1 Bd6 Bd4 Rf4 Qff2 Rhb1 Qe1 Rf3 Bg1 Rf4 Qa2 Ra1 Qab1 Rf2 Qbd1 Rab1 Rc4 Rc1 Rcc5
2NRN2q/1Q1r4/3q2b1/Bn1B4/P3RQbN/b2BKpk1/PR1n4/r2N2N1 b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 e5 f4 d5 fxe5 c5 cxd5 a4 d4 a3 dxc5 Ra6 bxa3 Ra5 a4 Ra8 Kd2 Kd7 e4 g5 h4 f5 h6 b5 h5 g4 c6+ Kc7 e6 Kd6 e5+ Kc5 d6 Kd4 e7 Ke4 e8N Kf4 h7 b4 e6 b3 e7 g3 d7 b2 h6 g2 c7 Kg3 Qb3+ Kf4 Rh2 Ra5 Bd3 Kg3 Qb7 f4 Nc3 b1B Nd1 f3 Ke3 Nf6 Bd2 Ra7 Ba5 Ne4 Rh4 Bc2 Rb1 Na6 Rb2 Nd2 Re4 Rg8 h8N Rg6 h7 Rb6 Nh3 g1Q+ Nhf2 Qh1 Ng6 Rd6 h8Q Qh7 Qf6 Qh8 Nh4 Rc6 Qc3 Bb1 Qcb4 Rc1 Nh3 Bc2 Ng1 Ra1 Ng7 Bb1 e8B Bc5+ Qd4 Ba3 Bg6 Qdf8 d8R Qd6 Ne8 Bg4 c8N Nc7 Bf7 Nb5 Bd5 Bc2 Qbb6 Rd7 Qb7 Bb3 Bc6 Bf7 Bd5 Bfh5 Qf6 Bg6 Qf4+
R2Q2Kb/3PNr1p/1r1N2n1/Rq2rq1Q/B1RB2PQ/k1q1QN2/8/2Q1b3 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 f4 g5 f5 Kd6 f6 Bf5 h3 Nc6 Nf3 Kd7 Ng1 Ne5 gxf5 g4 Ne2 g3 Ng1 Ng4 hxg4 Rc8 Ra4 Rb8 Ra1 Ra8 Ke2 Kd6 Kf3 Kc5 Ke4 Kb4 Ke5 a5 Ke6 c5 d4 c4 d6 a4 b6 g2 b7 c3 b8N c2 d5 a3 d7 a2 d6 Qe8 d8Q Ra4 d7 Bh6 f8Q Ra3 f7 Kb3 f6 Kb4 Nc6+ Ka4 b4 Rf3 b5 Kb3 b6 Rd3 b7 Rc3 b8R+ Ka4 Nd2 Re3+ Ne4 Bg7 Nf3 g1Q Bb2 Qf2 Bd4 Ka3 Bb5 c1R Ba4 Rb1 Ra8 Rb6 Qc1+ Qb2 Rh5 Re1 Rb1 a1Q Rha5 Rf1 Nd6 Rf2 Qc4 Qb5 Rb4 Qc3 Qd5 Rf1 Rc4 Rf2 Qc7 Qb8 Qe8 Qc5 Kf5 e5 Ke6 e4 f8Q e3 Kf7 e2 Ne7 e1B Qh5 Qf5 Qed8 Re2 Qfe8 Re5 Qc6 Qb7 Qh4 Qa6 Qe4 Qb5 Qe3 Bh6 Qc8 Bf4 Kf8 Bfg3 f7 Bf4 Nd5 Ne7+ Kg7 Bfg3 f8Q Ng6 Ne7 Bgf2 Qff7 Rf8 Qed8 Bg3 Qfe8 Rf7+ Kg8 Bf4 Qf8 Bg5 Qfh6 Bf6 Q6h5 Bh8 Qc6 Qf6 Qce4 Qf4 Qc2 Qf5 Qcc1+
R3BQQ1/1P4P1/2np3R/1kB1q1r1/1NR4b/2qNN2r/rn6/2Q1RKnR b - - 0 1 legal: proof: e4 c5 f4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 h4 g5 fxg5 Bb7 h5 Bd5 g3 Bf7 g4 Bg6 hxg6 Qb6 Nh3 Qc7 Ng1 Qd8 b4 h5 c4 a5 g7 e5 c6 h4 f6 a4 c7 d6 c8R Kd7 c5 e4 b6 e3 c6+ Ke6 b7 e2 c7 Kd7 g6 Kc6 b5+ Kc5 f7 a3 b6 a2 g5 h3 Na3 h2 Nc2 Ra7 Nh3 Rh6 Ne3 Rh4 Nf4 Kc6 Ba3 Ne7 g8R Kb5 g7 Ra5 g6 Rg4 Qc1 Nd5 Nd3 Rg5 Rh8 Nb4 g8Q Qe7 g7 Qe5 Rh6 N8c6 b8N Be7 f8Q Ra4 Kf2 e1N b7 Nf3 Na6 Ng1 Ra8 Ra5 Rb1 a1Q c8R Qac3 Be2 Ra4 Bh5 Bd8 Be8 Bf6 Nb2 Nd3+ Kf1 Bd8 Bc5 Ra2 Nb4 Be7 Nbd1 Nb2 Ra1 Rg3 Nf2 Bh4 Rc7 Rg5 Nfd3 Ne2 Rg1 h1R Rb1 Rh2 Rh1 Ng1 Qd2 Qb3 Re1 Rh3 Qc1 Qc4 Rf7 Qc2 Rf4 Qcc3 Rc4
Rb2QBB1/4B3/PQ1R1P1p/1q4r1/N2Qk1NB/1bKbb3/1rNn4/B6b b - - 0 1 illegal: No proof kernel
b1n3Q1/2Q1b3/1br2R1n/4B2N/1NQ2Pbk/K2n1BQ1/pR1P1NB1/2Q3q1 b - - 0 1 illegal: No possible last move
8/Q4RbP/1P4NR/2RK1NQQ/NBB4R/q2p3k/1bn1bR2/2n1rb1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kg4 h4 f5 e4+ Kg3 e6 a5 h6 g5 c6 d6 h5 g4 e5 f4 b6 f3 b7 a4 h7 f2 b5 a3 b6 a2 h6 Ra6 e7 Bf5 e8R Bd7 e6 Qf6 e7 Qh4 c7 Qf6 c8Q Ra3 Nc3 Qg7 Bd2 Ra4+ Kd5 Bf5 Bc4 f1B Nf3 Na6 b8Q B5d3 Rd8 Bde2 e8R Ra5+ Qc5 Qe7 Nh4 Bg7 Rf8 Qa7 Rb1 a1B Na4 Bab2 Bb4 Qe7 Rf2 Nf6+ Kc6 Ne4 Qg5 Re8 Qa7 d5 h8N d4 h7 d3 Rd4 Rf5 c3 Rf4 N8g6 Qf8 Kd5 Qe7 Rg1+ Kh3 Nf5 g3 Rgg2 Rh4 Rf3 Rc8 Rgf2 Rc7 Rf4 g2 Rc1 g1N Rc2 Bg4 Rce2 Ng3 Re6 Qf8 Rf6 Re7 Rf7 Re2 Rfe4 Rh5 Re6 Rh4 Ba5 Be5 Bb3 Bg7 c4 Re3 c5 Re1 c6 Ne4 c7 Bf3 c8R Qa3 Ne5 Ne2 Bc4 Nc1 Rc5 Bh5 Bd2 Ng3 Rh6 Nh1 Ng6 Nb4+ Kd6 Nc2 Bb4 Bf3 Qe2 B3g2 Qeh5 Be2 Ke6 Bgf1 Kd6 Bc3 Kd5 Bb2 Rxh4#
rb1Q3K/Bn3NP1/1BN4n/6R1/R2PqN1B/R2B2Q1/B1kpb1b1/b6n b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 b5 a4 g4 axb5 g3 hxg3 Ba6 g4 Bb7 g5 Bc8 Rh5 d5 Rh1 c5 Be2 a5 Bf1 Ra7 c3 Rd7 dxc5 d4 Nh3 d3 Ng1 Rd4 cxd4 Qb6 Qc2 Qd6 Qd1 Qd8 Kd2 Kf7 Ke3 h5 Kf4 e6 Ke5 h4 g4 a4 b4 a3 f4 h3 f6 Kg6 b6 h2 b5 a2 c6 Bc5 c7 Rh6 b7 Qe7 b6 Qd8 f5+ Kf7 g6+ Ke8 g5 Kd7 g7 Kc6 f7 Kb5 f8B Kb4 g6 Nf6 g8B Nh7 f6 Na6 b8B Be7 f7 Bd7 c8R Ba4 b7 Qe8 Na3 Ng5 Rc3 Rh5 Qf3 Bd6+ Kf6 e5 Kg7 e4 Qg3 e3 Ba7 e2 b8N e1N Nb5 Nc5 Nh3 Nb7 Nf4 Qe4 Rg1 h1B Ra3 Rh8 Nc6+ Kc4 Be2 Bb8 Bfc5 Bd1 f8Q+ Nf7 Qd8 Bg2 Ra4+ Kb3 Nd6 Kc3 Bcb6 Nh6 Nf7 Kc2 Be3 d2 Bf2 Nd3 Be1 Nf2 Bd3+ Kb2 Ra3 Nh1 Bf2 Ng4 Be1 Be2 Ra4 Rh5 Ra3 Rf5 Kh8 Nh6 g7 Rc5 Qe3 Rc4 Bh4 Ra4 Qg3 Ra5 Rac1 a1B Rc4 Ra6 Rca4 Ra5 Rc1 Ra6 Rc5 Ra5 Rg5 Ra6 Bc5 Ra5 Bab6 Ra8 Ba7 Kc1 Bcb6 Kb2 Nfe5 Kc1 Ba2 Kd1 Nf7 Kc1 Bdc4 Kc2 Bd3+
5b1r/R1Rb2PQ/4QNp1/1knb3N/n2P1nqQ/3RR2b/3K4/1BB1R1N1 b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 e5 h4 f5 f4 a5 fxe5 b4 h5 f4 h6 g6 a3 Qf6 axb4 Qg7 hxg7 Ra6 b5 Rb6 Rh4 Rf6 Rh1 Rf5 gxf5 Kf7 Na3 Ke7 Nb1 Ke8 b4 Kd7 e4 h5 d4 c5 f6 f3 f7 h4 d6 f2+ Kd2 a4 b6 Kc6 d7 a3 d8Q h3 e6 c4 b7 h2 e5 a2 e7 Nf6 e8Q+ Nfd7 e6 Bd6 f8N Rh7 b5+ Kd5 b6 Kc6 e7 Ba3 Ne6 Bd6 Bd3 f1B Nf4 Bc5 Nc3 Na6 b8R Bh3 b7 Rh8 Ncd5 Kb5 Bb1 Bd6 Qe1 Nc5 Qe6 Na4 Q8g8 Ndc5 e8R Bd7 Rc8 Bf8 Rc7 c3+ Kd1 c2+ Kd2 Bf5 Nh5 Bg4 Qh7 Bh3 Bb2 c1N Qh4 N1d3 Ndf6 Nf4 b8R+ Nb7 Ra8 Nbc5 Raa7 Bf1 Ne2 Bh3 Re1 h1B Ng1 Bf3 Re3 Bd5 Rd3 Bf5 Bc2 Bh3 Re1 a1Q Bb1 Qa3 Bc1 Qb3 Re7 Qd1+ Ke3 Qg4 Kd2 Bb7 Qd6 Bbc6 R7e3 Bd5 Qe6
3N4/4pP1R/b1N1QQk1/2KR1bB1/2R2P2/2rrRRB1/nb2rq2/b2B1Q2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 h5 Kc4 a5 g4 c5 b4 h4 d4 a4 f6 h3 g6+ Ke8 g5 a3 f7+ Kd7 g7 h2 d6 Ke6 d7 Kf5 b6 a2 b5 Rh5 d5 Ra3 b7 Rh7 d6 Rh8 b6 Rah3 g6 R8h5 Nd2 Rf3 Ne2 Re3 Nf4 Nc6 b8R Qc7 d8R Rg5 b7 Nh6 g8R Rg2 d7 Rg5 Nb3 Kf6 Nd4 Qa5 Nfe6 Qb6 Be2 Rb3 Qf1 Rd3 Bd1 Nb4 Nc6 Re5 Bg5+ Kf5 Rc1 Bg7 Rgf8 a1B Ra8 Qa7 b8B Re2 Bg3 Na2 f3 Qb6 Ra3 Ng4 Rc2 Bgd4 Kd5 Ba6 Rc4 Rdd2 Re3 Rd3 Rb8 Qb2 d8Q Qd2 Rbb4 Bdb2+ Rd4 c4 Kc5 c3 Rbc4 c2 Rd5+ Ne5 Qb6 c1R Ned8 Qe1 Qb4 Qf2 Qc3 Rcc2 Qd4 Rc1 Rh8 Rcc2 Rh7 Rcc3 g7 Kg6 f4 Ng4 Rg1 h1B Rf3 Re5 g8Q+ Kf5 Qe8 Kg6 Qd7 Re2 Qe6+ Nf6 Re3 Be4 Rg2 Qg1 Rf2 Bf5 Rff3 Qf2 Qdxf6+
2nbQ1bB/3pN1kQ/PnBq2b1/1K2R1R1/R6N/1B2r2P/1b2QR2/n2R4 b - - 0 1 illegal: No possible last move
q5N1/n5B1/1k2p1bq/q6B/nR1BQ1PN/1B1b1Q2/B1PQRq2/KR4r1 b - - 0 1 illegal: No possible last move
b1N1b3/B3Q2r/q1P2Bp1/N1r1r1PQ/2qNRB1R/KB4R1/3n1k2/3rB3 b - - 0 1 illegal: No possible last move
q2NN2Q/q3p3/nB1bq1R1/n1k1P3/3qBKBQ/1r2PQB1/rR4R1/6B1 b - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 h5 g4 a5 bxa5 b4 gxh5 b3 f3 Kd7 axb3 Ke8 b4 Bf5 b5 Be4 fxe4 Ra6 Ra2 Ra7 Ra1 Ra8 Kf2 Kd7 Ke3 Kd6 d4 c5 h4 f5 b6 g5 h6 g4 h5 c4 a6 g3 e5+ Kd7 h7 g2 b7 c3 d6 Kc6 a7 c2 d5+ Kb5 d7 Qe8 d8B Qc6 h6 Qe6 d6 Qg6 d7 Qg4 Bc7 Nf6 d8B Qh3+ Kf4 Ne8 Nc3+ Kc5 Rh2 Nf6 Nd5 Nbd7 b8R Ne8 Rb2 Nd6 Ra6 Nc4 Nf6 Nb8 Ne8 Na5 Nf3 g1Q Rg6 Na6 Ng5 Qhg2 Bd2 c1Q Nf7 Qc3 Be1 Qb3 Bg3 Qe6 Qd3 Qd4+ Qe4 Rb8 a8B Rb3 Bd5 Rg8 h8Q Qh1 h7 Bh6+ Rg5 Rg7 Bh3 Qa1 Qf8 Qaa4 h8Q Qac6 Bc4 Qa8 Bd3 Rg8 Rg2 Rg6 Kf3 f4 Bg4 Rf6 Rg6 Rf5 Rg1 Rh5 Rg2 Rh2 Bb8 Bg5 Bdc7 Bh4 Nd8 Qa7 Be1 Bf2 Qfh6 Be3 Bg3 Bd2 Qh4 Bb4 Qe3 Qa8+ Be4 Ba3 Bf5 Bb4 Kg4 f3 Kf4 f2 Qf3 f1Q Bg4 Qa1 Ba7+ Kb5 Bab6 Bd6 Bc5 Kc4 Bb4 Qda7 Bc5 Qd1 Be3 Qdd4 Bg1 Kc5 e3 Rh1 B1h2 Ra1 Bg1 Ra2 Bb6+
2N2b2/RnKQ3k/1P1NB1r1/r1pQBR2/3Nr1P1/3Q1Qb1/4bn2/1r1B1Q2 b - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 cxd5 b5 exf5 b4 h4 b3 hxg5 Bg7 f4 Qd7 g6 Qd6 axb3 Qd7 b4 Bf8 b5 Qd6 Qf3 Qf6 Qd1 Qg5 fxg5 Ba6 Kf2 Bb7 Ke1 Bc8 Kf2 e5 Ke3 c5 Ke4 h5 b4 a5 d4 h4 f6 h3 b6 a4 b7 a3 f7+ Ke7 b5 a2 d6+ Ke6 d5+ Kd7 b6 h2 g7 Na6 b8N+ Kd8 d7 Ke7 d6+ Ke6 d8Q Ne7 g8Q Nc6 d7 Ne7 g6 Kf6 g7 Kg6 Ne2 Nc6 Kd5 e4 Bb2 e3 Nd4 e2 Na3 e1R Qf3 Re2 Nab5 Bd6 f8Q Bg3 Nd6 Re6 Be2 Re4 Rhf1 h1R Bd1 Na5 Nbc6 Nb7 Na7 R8h6 Kc6 Nb4+ Kc7 Nd3 Qd5 Nf2 g8B Rg1 Bf7+ Kh7 Be6 Rg6 Qde8 Rh1 d8Q Bd7 Bc3 Bb5 Nc8 Be2 Qb5 Ra3 Qbd3 Ra5 Qd7+ Rg7 Rb1 a1B Q8f6 Bb2 Ra1 Bc1 Ra3 Bh6 Ba1 Rb5 Ra7 Ra5 Nb5 Rg1 Be5 Rh1 Nd4 Rg1 Bf7 Rg6 Be6+ Bg7 Q3f4 Nh3 Bc2 Rh1 Rf2 Rc1 Bd1 Rb1 Qfe3 Rc1 Rf3 Rb1 Qg1 Nf2 Qf1 Nh3 Qf4 Nf2 Qfe3 Ra3 Rf5 Ra5 Ne7 Bh6 Qf3 Bf8 Nec8+
rb3bnQ/4p1B1/N3BR2/1K6/1nN5/1bNNN1rR/B1QQP1P1/b1n3k1 b - - 0 1 illegal: Other
6RB/BQk1r3/1q1Rq1rP/1BN3BK/Bnnr3Q/1n2p2q/3P1Q2/R6N b - - 0 1 legal: proof: e4 b5 g4 d5 a4 h5 axb5 f5 exf5 d4 g5 d3 cxd3 Nf6 d4 Ng8 d5 Ba6 Qb3 Bb7 Qd1 Bc8 b6 Ba6 h3 Be2 Ra2 Bg4 Ra5 g6 Ra4 Bh6 gxh6 g5 Ra3 Be2 Ra1 g4 Nf3 g3 Ng1 Bg4 hxg4 Qc8 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 Kf3 c5 b4 a5 d6 e5 g5 a4 g6 c4 f6 g2 g7 a3 b5 a2 b7 h4 Kg4 c3 f4 c2 f7 h3 f8B e4 b6 h2 f5 e3 f6 Ra7 f7 Nc6 b8Q Nb4 b7 Qa5 Ne2 g1Q+ Ng3 Qc7 Qe1 Nd3 Bb2 c1Q Kh5 Q1c6 Be7 Qf2 f8Q Qb5+ Bg5 Ne5 Nc3 Qd5 Nce4 Qb6 Rg1 Qf5 Nh1 Qh3+ Qh4 Qde6 Qf2 Ne7 g8B N7c6 Bb5 Nc4 Be5 Rh7 Bh8 Ra6 Qa7 Re7 b8B+ Kd8 d7 Nb4 Qb7 Ra4 Ba7 Ra6 Qa8+ Kc7 d8R Ra4 Rd6 Ra6 Rae1 a1N Nc5 Nb3 Ra1 Ra4 Bh7 Ra6 Bc2 Ra4 Ng3 h1R Qd5 Rh2 Nh1 Rg2 Bd1 Rg4 Rg3 Rd4 Rg2 Ra6 Rg3 Nc1 Bda4 Nb3 Rd8 Qd7 Bgf6 Qb8 Rgg8 Qdf5+ Bg5 Rg6 Qe4 Qe6 Rd6 Qb6 Qb7+
3nQ1qQ/3B1q2/qr2b3/3B2N1/qNpk1N2/R2n2BB/1RP1P2q/1Q1KB3 b - - 0 1 legal: proof: d4 a5 f4 b5 a4 g5 fxg5 e5 axb5 Ra7 dxe5 Ra6 b4 Ra8 g4 a4 h4 Nh6 h5 Ra6 g6 Ra5 bxa5 Ke7 g5 Ng8 h6 Bg7 hxg7 Ke8 a6 Ke7 a7 Ke6 a8B h5 b6 d5 b7 c5 Nc3 f5 Rb1 a3 Ne4 h4 Ng3 f4 Ra1 a2 Nh5 h3 Bd2 h2 Nh3 d4 Qb1 Kd5 e6 c4 e7 d3 e8B f3 Bd7 f2+ Kd1 Kd4 N5f4 Rh6 Be1 Ne7 g8N Nd5 g7 Nb4 g6 N8c6 Ne7 Qg8 Ng5 Nd8 Bfh3 f1Q b8B Qf3 Rf1 h1Q Ned5 Qh2 Rg1 Qg4 Rg3 Qf7 g8Q Qge6 g7 Qa6 Bc7 Rb6 Qe8 Qa4 g8Q Qa6 Bb5 Be6 Bd7 Qa4 Qb3 Qa6 Rb1 a1Q Qh7 Q1a4 Rb2 Nbc6 Qb5 Ne5 Nb4 Qg8 Bd5 Qf7 Kc1 Qg8 Qh8 d2+ Kb1 Qf7 Ra3 d1Q+ Ka2 Qd2 Kb1 Qd3 Kc1 Qdh7 Kd1 Qhg7 Nh5 Nd3 Bcg3 Qf8 Nf4 Qg8 Na2 Qf6 Qb3 Qfg7 Nb4 Qf6 Qa2 Qfg7 Qb1 Qf6 Qh4 Qff7 Qh8+
2R2N2/2K1k1N1/R2nPnNP/B2r2N1/2nnQ3/5q1q/3nbRp1/Q2N1B1B b - - 0 1 legal: proof: f4 e5 fxe5 b5 b4 h5 g4 c5 gxh5 a5 d4 Qb6 dxc5 Qd8 c6 Bc5 bxc5 b4 a3 b3 Bh6 Ra7 Be3 Rb7 Bc1 Rb4 axb4 Qc7 Qd5 Qb6 Qd1 Qd8 Kf2 f5 Ke3 d5 Kd4 g5 e4 a4 h4 b2 c4 a3 e6 g4 Ke5 g3 c7 d4 c6 a2 c5 f4 e7 d3 h6 f3 h5 f2 h7 d2 b5 Qd3 h6 Ba6 c8R+ Qd8 c7 Nf6 c6 Nh5 b6 Kf7 e8N Nf6 b7 Bd3 Rh2 Bc2 Nf3 Na6 b8N Nd7+ Kd6 Bb3 e5 Bc4 Nc3 b1N Ng7 Nf6+ Nd7 Nc5 Qe2 d1Q+ Bd2 Ba6 Qe4 Na3 Rg2 Rg8 h8Q Be2 Rh2 Qb3 Nd1 Rf8 Ba5 Qc3 Bh3 f1N Rf2 Nd2 Bg2 Qe8 Bh1 Rg8 Nf8 g2 Nh4 Qh3 Nf3 Nh5 e6+ Kf6 Rd8 Qf7 c8N Qb7 Ne7 Nac4+ Kd5 Qa8 Rc8 Nb7 c7 Nbd6+ Kc5 Qb7 Neg6 Qb3 Ng5+ Qbf3 Rb1 a1N Kc6 Nc2 Rb6 Nd4+ Kd7 Qh4 Ra6 Qh2 Rb8 Qh3 c8B Nf4 Kc7 Nh5 Nh4 Ke7 Bb7 Ng3 Rc8 Nh5 Bc6 Nf6 Bb5 Nc6 Qhh7 Rh8 Qb1 Nd4 Qa1 Rg8 Qe4 N6f5 Nfh7 Rd8 Nf8 Rd5 Bc3 Nh5 Ba5 Nfd6 Nhg6+ Kf6 Ne7 Ne5 Bb6 Bf1 Bd3 Nec4 Bb1 Bd3 Neg6 Bf1 Ba5 Bd3 Nf4 Ke7 Bc2 Nf6 Ba4 Na3 Bc2 Bc4 Bd3 Bb5 Bf1 Be2 Qeb1 Nac4 Qd3 Rb5 Qe4 Rd5 N4g6#
q2qrbkB/B1pBnr1q/1R1N2P1/5N1r/2B4q/3Q3P/1Q2N3/1RBKR3 b - - 0 1 legal: proof: c4 e5 a4 h5 f4 g5 fxe5 d5 cxd5 b5 axb5 h4 h3 g4 Nf3 g3 Ng1 Bg4 Qa4 Nd7 Qd1 Ndf6 hxg4 h3 Qc2 h2 Qd1 Ne4 Nf3 Nf2 Ng1 Nh3 gxh3 Bc5 Ra5 Bb4 Ra1 Bf8 e4 a5 b4 f5 d4 Kf7 e6+ Kg7 e7 a4 e8B f4 d6 f3 b6 a3 g5 a2 g6 g2 d7 Rb8 d5 Qg5 d8R Qf4 e5 Qd4 e6 Qe4+ Ne2 g1R d6 Rb7 e7 Qc2 b5 Qb3 d7 Qf7 Nbc3 Rg5 Nd5 Qf5 Qd3 f2+ Kd1 Nh6 Rb8 Qf6 d8B Rg8 Rb1 a1Q Ne3 Qa8 Bd7 Rf5 e8N+ Kh8 Be7 Qh4 Nd6 Rf7 Nef5 Ra7 b7 Ra5 Rg1 h1Q b6 Qd5 Beg5 Qdd4 Bgd2 Re5 Bc3 Re8 Ba1 Rgg7 Bab2 Kg8 Bc3 Qd5 Bd4 Rh7 Bh8 Qdd4 Ne4 Qd8 Ned6 Qa5 Qd2 Qad5 Nc3 Ng4 Bc4 Ne5 Re1 Nc6 Ne2 Ne7 Qd3 Rh6 Rc8 Q5e4 b8B Qa8 b7 Qg7 Ba7 f1Q b8Q Qf2 Qb6 Qh4 Qb2 Qh7 Rb8 Rh5 Rb6
4B3/1bRN1qbR/r1r1NP2/q5QQ/1p3QKR/4kPB1/r5BB/2q1B1r1 b - - 0 1 illegal: No possible last move, all moves rejected
4rRr1/2R1Qq2/1PNb1P2/Q1p2rq1/1QbN1b2/B5R1/BK3b2/2QkB2Q b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Kd7 f7 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 g5 Nc6 h3 Nf6 h4 Ne5 Ke2 Nf3 gxf6 g5 Kf2 g4 Ke2 Ng5 hxg5 g3 Ke1 Bg7 Rh3 Bh6 Rh1 Bf8 b4 Kd6 d4 a5 Kd2 e5 Kc3 c5 g6 h5 g7 a4 g8Q a3 b6 e4 b7 g2 b8Q+ Qc7 b5 a2 Kb2 e3 Qg5 e2 Nd2 e1R Ngf3 g1B Rh3 h4 Nc4+ Kd7 d6 Qd8 d5 Be7 f8Q Ra7 f7 Be3 Na5 Rg8 Nc6 Bf2 Bc4 Ba6 Rg3 h3 Nfd4 h2 Qf4 Re5 Qh1 Ra8 f6 Qe8 Qg7 Rf5 f8R Qf7 Qb6 Rd8 Qgg5 Rb8 Qa5 Re8 b6 Bb5 Qfd2 Ba6 Qdb4 Bb5 Bb3 Bc4 Qgd2 Kc8 d7+ Kb7 d8B Bd6 Bc7 Bf4 Qf3 h1Q d6 Qhh5 d7 Qg5 d8Q Bd6 Qh1 Bf4 Qbc3 Bd6 Qab4 Ka6 Qe7 Bf4 Kc2 Bd6 Ba3 Bf4 Rd1 a1B Ba2 Bb2 Qde3 Bc1 Bb8 Bd6 Qee1 Bcf4 Kb2 Bf1 Qc1 Bc4 Nc2 Bc7 Rd7 Bcd6 Qbd2 Kb5 Rc7 Bb3 Qa5+ Kc4 Rg1 Kd3 N2d4 Bd5 Qeb4 Bc4 Rg3+ B2e3 Rg1 Bfe5 Rd7 Bc7 Rg4 Bh2 Nb5+ Ke2 Rg1 Bcg3 Bf4 Bf2 Rc7 Bhg3 Be5 Bd2 Bc3+ Be5 Rg3 Bf4 Qd8 Bd6 Be1 Rd5 Qe7+ Re5 Qcc3 Kd1 Nbd4 Rf5 Qc1+
6b1/qQpB3b/2b1b1R1/k3b1b1/NNPr1R2/1R2BQPB/3R3Q/2b2RK1 b - - 0 1 legal: proof: e4 b5 d4 e5 dxe5 Ke7 a4 a5 axb5 Nc6 f4 Nb8 e6 Kf6 e7 Ra6 e5+ Kf5 e6 Rc6 Qf3 Kg6 Qd1 Kf6 g4 Rc5 Qd3 Nc6 Qa3 Re5+ fxe5+ Kg6 Bf4 f5 Bc1 f4 Qf3 Nd4 Qd1 Nf5 Bd3 Nh6 Bf1 Ng3 Qd2 Nhf5 gxf5+ Kh6 Qe2 g5 Nd2 g4 Nb1 Kg7 Qd1 Nh5 Qd2 g3 Qd3 g2 Qd1 Ng3 hxg3 Ba6 Be2 Bb7 Bf1 Bc8 Kf2 d5 e8R h5 b4 a4 b6 a3 b5 h4 b7 f3 b8Q d4 e7 Kf7 b6 a2 f6 Ke6 f7 Kd5 e6 Kc6 b7 Kb6 Nc3 d3 Nh3 d2 Kg1 Qd4+ Nf2 h3 Na4+ Ka5 Rh2 Bh6 f8R Qa7 Rf4 Bg5 Rg8 Rh4 e8B Rg4 e7 Be6 Rb1 a1B Bd7 Be5 e8Q Rh4 Qe2 d1B Rg6 Rg4 c3 Bdb3 Qh8 Bg8 Qa8 Bbe6 b8R Bh7 R8b3 Beg8 Rf8 Rd4 Nd3 Be6 Be3 Bhg8 Rh1 Bh7 Nb4 h2+ Kf2 Bhg8 Rd1 Bh7 Rg1 h1B Rd2 Bhg8 Qh2 Bh7 Qd1 Bhg8 Ke1 f2+ Ke2 Bh7 Qb7 Bhg8 Rf4 Bh7 Kf3 Bhg8 Bfb5 f1B Kf2 Bd3 c4 Bc2 Re1 g1B+ Kf1 Bhd5 Qf3 Bc6 Kg2 Bf2 Rf1 Be1 Kg1 Bd3 Rdf2 Bd2 Bc8 Bc1 Rd2 Bcd5 Bbd7 Bc6 Rh6 Bdh7 Rg6 Bed5 Bh3 Bde6 Bd7
3NN3/Qn2B3/B2q4/RQ2PbK1/1Pq1Rp2/pb4B1/R2r2R1/1kb1R1Nr b - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 b5 cxd5 b4 a3 Bg4 axb4 Bc8 h4 g5 hxg5 a5 b3 a4 Rh3 a3 Rh1 Nd7 Ra2 Nc5 Ra1 Na4 bxa4 Be6 Ra2 Bf5 Ra1 Bc8 Kf2 Ke7 Ke3 c5 Kf4 h5 d4 f5 e4 c4 g4 h4 d6+ Ke6 a5 h3 g6 h2 d7 c3 a6 c2 a7 Qa5 d8N+ Kd7 d5 Ke7 e6 Kd6 e5+ Kc7 g7 Kb6 e7 Rh5 e8Q Bc5 d6 Qb5 d7 Ne7 g8R Qe2 g5 Kb5 g6 Kc4 g7 Kb3 Nd2+ Kc3 Nc4 Nc6 Ra2 Na5 Nd6 Qc4+ Qd4+ Kb3 Rh8 Nb7 g8R Qa6 Bd2 c1Q Rg2 Qcc4 Be1 Rh6 Kg5 f4 Bg3 Rh4 Qf2 Be3 Re2 Bd2 Re4 Kc2 Qd4 Rb8 a8R Kb1 Qa7 Bc1 Ra2 Qac6 Rg8 Rh7 Qe7 Rh4 Ne8 Qd6 Qc5 Rh3 Ra5 Ra8 Qb5 Ra7 Bf2 Rd3 Bg3 Rd2 Nc6 Ra6 d8B Bf5 Qh7 Ra8 Be7 Ra6 Nd8 Rc6 Ne2 Rc8 Rg1 h1B Rg2 Rc6 Ng1 Rc7 Rge2 Bf3 Re1 Bd1 Qh2 Bb3 Qf2 Rd7 Qa7 Rd1 Rh8 Rd2 Rh2 Rc7 Rg2 Rd7 Bf8 Rh7 Be7 Rh1 Qd5 Qcc6 Ba6 Qc4 Qb5
3BqkN1/1r4QR/3q2P1/P1B2N1r/QBp3r1/bB3KR1/1pQ5/Rn1B1n2 b - - 0 1 legal: proof: e4 d5 f4 a5 c4 f5 exf5 a4 cxd5 a3 bxa3 Ra5 a4 Ra6 a5 Ra8 g4 g5 fxg5 Bg7 h4 Bf8 h5 Be6 Ba6 Bf7 Bf1 Bg6 hxg6 Ra7 Na3 Ra6 Nb1 Ra8 Ke2 e5 a4 h5 d4 b5 a6 c5 g7 h4 g6 b4 d6 b3 d5 b2 g5 e4 a7 h3 d7+ Ke7 f6+ Kd6 f7 Ke7 d6+ Ke6 Nf3 h2 Nc3 e3 Nd4+ Ke5 Nd5 Qc8 d8R Rh7 d7 Kd6 Qc2 Nc6 Ne7 Qa6+ Kf3 e2 Bd2 e1Q Bb4 Na5 Be2 Nf6 g8B Nb3 g7 Ng4 g6 Ne3 Bd1 Nf1 Ndf5+ Ke6 Rc8 Qd6 d8B Rh4 a5 Rb8 a8Q Rg4 Qc6 Rb7 Qa4 Kf6 Rg1 h1R Rg3 Rh5 Rc7 Ke6 Nc6 Be7 f8B+ Kf6 Bf7 Qee5 g8Q Nbd2+ Kg2 Qe1 Bb3 Nb1 Kf3 c4 Qg7+ Ke6 Rc8 Kd7 Rc7+ Ke8 Rd7 Bf6 Nce7 Bd4 Bd2 Bc5 Ng8 Ba3 Bb4 Qee6 Bfe7 Qee5 Bg5 Qee7 Be3 Qee6 Bec5 Qf7 Qd4 Kf8 Qe5 Qe6 Rh7 Qe8 Qg7+
1qBR1rN1/3NQ3/n1Q1PN2/k2p3P/4b3/r3bbRK/3q2p1/Q1QQR1B1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Nc6 c5 Na5 bxa5 Be7 Bg2 Bd6 Bf1 Bf8 Kf2 d5 Kg3 Kd7 c4 Kc7 e4 f5 h4 g5 h6 a3 e6 f4+ Kh3 f3 h7 a2 a6 f2 e5 Qe8 a7 Qf7 h5 Bd7 b6+ Kb7 c6+ Ka6 c5+ Ka5 c7 Qe8 c8Q Kb4 b7 Bc6 b8R+ Bb7 c6 Qd8 c7 Bc5 e7 Nf6 e8Q Qd6 e6 Bb6 Qe7 Qc5 Nf3 Rf8 h8Q Nd7 Nc3 Qd6 Ne4 Be3 Rg1 Nc5 Ba6 Ka5 Nf6 f1B+ Rg2 Be2 Rg3 Qb6 Ne5 Bf3 Ned7 Be4 Rb1 a1Q Bb2 Qb4 Bd4 Qab2 Rc1 Q2d2 Qhg7 Bf4 Bg1 Be3 Qh6 Bf3 Qce8 Bc6 Rd8 Bb5 c8N Bd3 Rb1 Bde4 Rc1 Rb8 a8Q Qb5 Qc6 Ra8 Qeg7 Qb8 Ne7 Ra7 Bc8 Na6 Neg8 Ra8 Qee7 Ra7 Qe2 Ra8 Re1 g4+ Kh4 Ra7 Qd1 Ra8 Rh3 g3 Qgh8 g2 Rg3 Ra7 Kh3 Rb7 Qg5 Rb3 Qf4 Bb1 Qfc4 Ra3 Qcc1 Bd3 Ne8 Bb1 Qa1 Bbe4 Nef6
b1K3QB/2BR2PR/n1b1p2Q/3r1RP1/3q1Bp1/2qNb2N/7B/1k1r1N1B b - - 0 1 illegal: No proof kernel
2Nb4/3P1NQB/1b2N3/qq1P2Q1/1R1BKR2/nbp2rBk/2p3Q1/1N1r1N2 b - - 0 1 illegal: Other
1kr5/br1pR3/2B2rQ1/P1NQ4/1P1nR1N1/N1R1Q1q1/qp4Qn/B5KQ b - - 0 1 legal: proof: b4 e5 d4 a5 bxa5 g5 g3 f5 Bd2 f4 Bc1 Na6 gxf4 g4 h4 Nc5 Bb2 Ne4 Bc1 Ng5 hxg5 Kf7 Qd3 Ke7 Qd1 Ke8 dxe5 b5 a4 b4 Ra3 b3 Nd2 Nf6 Bb2 Ba6 Ba1 b2 Ndf3 Bc4 Rc3 Bb3 cxb3 Ng8 b4 Rc8 Nd2 Rb8 Ndf3 Ra8 e4 h5 g6 c5 e6 g3 f5 c4 a6 g2 a7 h4 a5 h3 e5 h2 e7 Qb6 f6 Rd8 a8Q Qb8 g7 Qc8 Qdd5 Qb7 Nd2 Nh6 g8Q Qc7 f4 Qc8 Kf2 Qc7 f5 Rh7 Nh3 g1N Qg6+ Rf7 Bg2 Ne2 Nb1 Bg7 Na3 Qc6 Re1 Nd4 Re4 h1R Bf3 Rh2+ Kg1 Qc7 Nf2 Rc8 Qg2 Rf8 Ng4 Rb8 Qh1 Rf2 Qa7 Rb7 Qac5 Nb3 Qe3 Nd4 Rf4 Nf7 Rb3 c3 Qc4 c2 Rc3 Qd6 Bc6 Rc7 Nh2 Bh8 Qcd5 Ng5 Qdg2 Nb3 Rh4 Kf7 e8R Rb7 Re6 Rc8 Rf4 Kf8 f7 Qd5 Rh4 Qf3 Re4 Qg3 Ng4 c1Q+ Qe1 Qd2 Qe3 Qd5 Re8+ Kg7 f8N Kf7 Ne6 Bg7 f6 Bf8 Rd4 Bc5 Rdc4 Ba7 Nc5 Rf3 Rf4 Nd4 e6+ Kg6 e7 Qa2 f7 Rf2 Re4 Kf5 Rd8 Rf4 e8Q Ngf3+ Kf1 Nh2+ Kg1 Kg6 Qe5 Rf6 Re8 Kg7 Re7 Kf8 Qd5 Nf1 R7e5 Nh2 Ne6+ Ke7 Nc5+ Kd8 Re7 Kc7 f8Q Kb8 Qg7 Qc7 Qgh6 Qg3 Qg6
n2rQ2q/1qpQ3Q/b1NPnB1Q/3P1K2/k7/BNQBbp1R/N2R4/3q4 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Nh6 d5 Ra5 bxa5 Ng8 Kf2 Kd7 Kf3 g5 Ke4 f6 h4 a3 d4 g4 h6 g3 h5 a2 b6 g2 e6+ Kd6 e7 Nd7 e8Q Rh7 a6 Bg7 b7 Nf8 b8N Ng6 a7 Nh8 a8Q Nf7 Nd2 Bh8 Qe1 Ba6 Nc6 Qe7+ Kf5 Bg7 e4 Bf8 Ne2 g1Q Nc3 Qg7 Bd3 Bc4 Nb3 Qh8 Rh3 Ng5 Qa6 Ne6 Qec8 Rf7 h7 Bh6 Qb6 Bd2 h6 Ba6 Rb1 a1Q Rb2 Qe8 Na2 Be3 Qc3 Rd7 Rd2 Rd8 Bb2 Qd1 Bc1 Qg7 h8B Qg2 h7 Qgh1 Bg7 Qf8 h8Q Qhf3+ Kg6 f5 Bf6 f4 Kf5 Qg7 Qh7 Qh8 Bh4 Nf6 Ba3+ Nc5 Bg5 Nd7 Bf6 Qfh1 Qcb7 f3 Qb5 Qb1 Q7b6 Qhd1 Qa4 Bc4 Qba6 Nb6 Q4b5 Na8 Qba4 Qg7 e5+ Kd7 d6 Ne6 Qb6 Ba6 Qab5 Kc8 d5 Qh8 Qbd4 Qb2 Qdh4 Qbb1 Qba4 Kb7 Q4h6 Kb6 Qg4 Bc4 Qgg7 Kb5 Qe7 Ka4 Qd7 Nc5 e6 Ba6 e7 Ne6 e8Q Qb2 Nba5 Qb7 Nb3
bQ3RnR/r4Q1B/k3r1B1/2nnR3/rpQ2p1R/1P2BbN1/1R2PN2/4K3 b - - 0 1 legal: proof: b4 d5 h4 g5 hxg5 e5 c4 a5 f4 a4 fxe5 Qd7 cxd5 Qh3 Bb2 Qa3 Bc1 Qb3 axb3 Bc5 Nf3 Bb6 Ng1 Ba5 bxa5 Kd8 Nf3 Ke7 Ng1 Ke8 g4 Kd7 d4 c5 d6 Kc6 g6 Kb5 e6 h5 g5 f5 g7 f4 a6 h4 g6 c4 d7 a3 d8R h3 e7 a2 e8R c3 a7 h2 d5 b6 d6 c2 d7 Ba6 Nd2 Nh6 g8Q Nf7 g7 Rh4 Nh3 Bc8 Ne4 Na6 Re5+ Nc5 Rb1 a1R Bg2 Ka6 Qd3+ b5 Qc4 Nh6 Be3 c1N Rf8 Bb7 d8R Ra4 Nhf2 Na2 Rb2 Nb4 Qgf7 Nd5 Ng3 Ng8 Be4 Rh6 Bc2 Re6 Bg6 Rc8 Rde8 Rc7 Rc8 Bc6 a8Q+ Ra7 Qb8 Ba8 Rcd8 Nh6 Rh8 Ng8 Rh4 Rd7 Rf8 Ra7 Rg1 h1B Rf1 Ngf6 g8B Bf3 B8h7 Ng8 Rfh1 Ree7 Rhh5 Nh6 Bg8 Re8 R1h4 Re6 Qc3 b4 Qd4 Ng4 Rh8 Ngf6 B8h7 Ng8 Qc4+
3n3B/2N5/1n2NnQp/N3r3/PPB1pBR1/2KB1k2/q2nRQ2/R1bB1b2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 hxg5 Nc6 c4 Nb8 cxd5 Bh6 Bc4 Bg7 Bf1 Bf8 a3 b5 b3 b4 axb4 Qd7 Rh2 Qd6 Rh1 Qd8 Rh6 a5 Rh1 a4 Qf3 a3 Qd1 Ra4 bxa4 Qd6 Rh5 Qd7 Rh1 Qd8 d4 Kf7 Kd2 c5 f4 e5 g4 a2 d6 c4 d5 h6 g6+ Kf6 g5+ Kg7 d7 e4 d6 Rh7 f6+ Kh8 f7 Kg7 f5 Qe7 d8R Be6 f6+ Kh8 d7 Qc5 Nf3 Bd5 Kc3 Qb6 Nfd2 Qc6 Qg4 Qe6 Rg1 Bg7 f8B Nc6 Na3 Qf7 Bd3 Be6 Rc8 Nd8 Nb5 Bf5 Qg2 Bh3 Nb3 Qd5 Qf2 Bf1 Nc7 Qe6 Na5 Qd5 Kc2 c3 f7 Nf6 Bf4 Qc4 Rg4 Qb3+ Kc1 c2 Kd2 c1N Be7 Qb1 f8N Nb3+ Kc3 Nd2 Nfe6 Nc4 Bc5 Kg8 Bd4 Nb6 Bde5 Bh8 g7 Kf7 g8B+ Kg6 Bd4 Kf5 g6 Re7 g7 Re8 Bf7 Re7 g8B Re8 Bh5 Re7 Nc5 Re5 Bgc4 Bg7 Rg3 Bh8 Bd1 Bg7 Re3 Bh8 Re2 Kg4 N5e6 Bg7 Qg1+ Kf3 Qg6 Nc6 Rg8 Nd8 Qe8 Bh8 Rg4 Bg7 Kd2 Qb3 Qg6 Qa3 Rc1 a1N Rb1 Nb3+ Kc3 Qa2 Ra1 Nb7 d8Q Nd2 Qf8 Nd8 Bg1 Nh5 Qff5 Bf6 Bc5 Bg5 Bf8 Nf6 Bg7 Nfd7 Qf8 Nf6 Bh8 Nb3 Bg3 Bc1 Bf4 Nd2 Qc5 Rd5 Qd4 Re5 Qf2#
kqN3bn/1r1r3b/B1BN2PR/2NQp3/p1rPK2R/4QB2/5BR1/2r2B2 b - - 0 1 legal: proof: h4 c5 f4 d5 a4 g5 hxg5 b5 axb5 e5 e3 c4 f5 Nc6 d3 Nd4 dxc4 Ne6 fxe6 d4 Kf2 Bb4 c5 Bc3 Ke2 d3+ Kf2 Bd4 exd4 Qc7 Ke1 Qd8 Kd2 a5 Ke3 h5 c4 f5 b4 f4+ Ke4 d2 g4 h4 b6 a4 b5 f3 b7 f2 b8R h3 e7 Kd7 e8B+ Kc7 c6 h2 g6 Rh6 b6+ Kd6 c5+ Ke6 c7 Ra7 g5 Qd7 c6 Kd6 g7 Rg6 b7 Ra5 Ra2 Ne7 g8B Ra8 Nf3 Ra6 Nc3 Ra5 Qb3 d1R Ne1 Nf5 Bd5 Nh4 Be3 Rc5 Nd3 Rc4 Nc5 Rc1 Re2 Qd8 Nb5+ Ke7 Qc3 Be6 c8B Rg7 c7 Bg8 Bec6 Ng6 Nd6 Nh8 g6 Bh7 Ra8 Rb1 b8Q Rb7 Ra7 Rf7 Qa8 Qg8 Bf5 Qb8 c8N+ Kd8 Bg4 Kc7 Bf3 Rg7 Bb5 Rd7 Ba6 Rb4 Bc6 Rc4 Rg1 h1B Rg4 Bg2 Rh4 Bh1 Bf4 Bg2 Qe3 Bh3 Bg3 Be6 B1g2 f1R Bf2 Rfc1 Bf1 Beg8 Bg1 Kd8 Rg2 Rb2 Rb7 Rbb1 Rb3 Kc7 Bf2 Rb2 Bcb5 Rbb1 Qd5 Rb2 Ra3 Rbb4 Bc6 Rb7 Ne7 Kb6 Rh6 Ka7 Nec8+ Ka8 Ra2 R4c3 Rgh2 Rc4 R2h4 R4c2 Bg1 Rc3 Rg2 Rc4 Bf2
kNN1B2n/1Nn2R2/1RQBr1P1/2pbN3/3P1Npr/q7/4Qn2/1Q1BnK2 b - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Qf6 f4 Bh6 fxe5 Bg5 hxg5 Qd8 b4 Kd7 e4 h5 d4 c5 b6 a5 b5 h4 d6 a4 e6+ Ke8 d7+ Ke7 e5 h3 g6 h2 f6+ Kf8 f7 Ke7 f8N a3 b7 a2 b6 Ra4 Nc3 Rc4 Bf4 Qe8 d8N Qd7 Ne4 Qe8 Nd6 Nd7 b8Q Qf7 b7 Rh4 Ne2 Ndf6 Nd7 Ra4 Rb1 a1N Rb6 Nh6 Qa8 Qe8 b8N Nd5 Qb1 Ra6 Qc6 Nf7 N8b7 Nc7 Bg3 Qf8 Nf4 Nh8 Be2 Nc2+ Kf1 Ne1 Bd1 Qf6 Rg1 h1N Rg2 Qg7 Rf2 Qf6 Nf8 Bd7 Nc8+ Ke8 Rf3 Nf2 e7 Qf5 N8e6 Qg5 Nd3 Qc1 Rf7 Qc3 Nef4 Qa3 Qe4 Be6 Qe2 Na8 Nc6 Kd7 Nb8+ Kc7 Bh2 Bd7 e6 Bc6 Ne5 Be4 Ned7 Bd5 e8Q Qa5 e7 Qa3 Rb2 Rd6 Ne5 Re6 Rb6 Qb3 Qa4 Qa3 e8B+ Re7 Nbd7 Re6 Nf8+ Kb8 Qc6 Nc7 Nfd7+ Ka8 Nb8 Rh5 Bg3 Rh7 Bh4 Rh6 Be7 Rh4 Bd6
Q3b1RK/7p/nbq1BB1r/7P/P2NB3/B4pQn/N4RN1/k1B1b1bR b - - 0 1 legal: proof: f4 a5 c4 b5 cxb5 c5 b4 e5 fxe5 f5 bxa5 f4 e4 Ra6 g4 Re6 d4 Rf6 e6 Rg6 d5 Qf6 e5 Qf5 gxf5 Kd8 e7+ Kc7 Kf2 Ra6 Ke1 Re6 dxe6 Bb7 Be3 Ba6 Bc1 Bc8 Kd2 g5 Kc3 d5 e8Q c4 Kd4 f3 a4 c3 h4 c2 a6 Kb6 f6 Ka5 e7 Kb4 h5 Kb3 e6 g4 Ke5 g3 a7 d4 a8B g2 f7 d3 b6 d2 b7 Bh6 f8B Be3 Nc3 Bb6 Na2 Na6 b8B Nf6 Nh3 g1B Nf4 Ba5 Bh3 Ne4 Qe1 d1Q Ng2 Qd3 Qg3 Nf2 Kf6 Qd6 Kg7 Bd8 Be4 Qb4 Be5 Bb6 Bf6 Bd7 Qa8 Qc3 e8R Qc6 Bfa3 Rf8 e7 Rf7+ Kg8 Rg7+ Kh8 Rg6 Rc8 Rh6 Rg8 Be8 Bd7 Nh3 Rh2 Bg6 e8N Bf7 Nc7 Be8 Bd2 c1B Nb5 Bb2 Bc1 Bc3 Rh1 Be1 Be6+ Qc4 Nb4 Qd5 Ra2 Qc4 Rf2 Qd5 Nc2 Ka2 Ncd4+ Ka1 Nc3 Qc6 Na2
4B1Q1/3N3p/3RQPpq/2N1b1b1/k2RQ1b1/1bnKB2R/PrQB2Q1/5n2 b - - 0 1 illegal: No possible last move
4RbQ1/5pn1/N1Bnnr1k/2P3Q1/1K2pnRN/QQ5P/1B2R2q/4NQ1r b - - 0 1 legal: proof: d4 b5 g4 d5 a4 e5 axb5 c5 dxc5 h5 gxh5 d4 e4 d3 f4 Be6 f5 d2+ Kf2 Qc7 fxe6 Qc8 Qf3 d1N+ Ke1 Nc3 Qd1 Nd5 exd5 Qd8 Kd2 g5 Kc3 a5 b4 g4 e7 e4 d6 a4 h3 g3 b6 g2 c6 a3 b7 a2 h6 Qc7 h7 Nd7 b8Q+ Qd8 b5 Nc5 b6 Qc8 c7 Ra5 b7 Ra3+ Kb4 Re3 c4 Nf6 Na3 Rc3 Nc2 Ng4 Nf3 g1N Bb2 Nd7 c5 Nh6 Rh2 Ne5 Nh4 Ne2 Ne1 Nf4 Re2 Nf5 Qa8 Rg8 b8N Rc1 h8Q Rg6 Qf6 Ng7 Qb3 Nc4 Qaa3 Qf5 Rb1 a1N Na6 Qe5 Qg5 Rf6 c8R+ Kd7 Re8 Ke6 d7 Rd1 d8Q Nc2+ Ka4 Nd4 Kb4 Qd6 Rc1 Qe5 Rc3 Qd6 Rg3 Rb1 Qb8 Qc7 Qf3 Nd6 Rg4 Rd1 Rh2 Rb1 Bb5 Ra1 Re2 Rc1 Nd3 Rh1 Qf1 Nfh5 Qe1 N6f5 Kc3 Qh2 Bc6 Nd6 Rc8 Nf4 e8Q+ Be7 Qg8 Bf8 Qf1 Nb7 Qh6 Nd6 Ne1 Ke5 Qbb3 Nde6 Nhg2 Kf5 Re8 Ng5 Qh4 Kg6 Kb4 Nf5 Rg3 Nd6 Qg4 Kh6 Nh4 N5e6 Qf5 Nfh5 Rg4 Nhf4 Qg5+
7Q/3P1kqn/1R3Rn1/Nrb1B2P/2N3NQ/2Nrrp2/p2NB2K/Br1R4 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 b6 h5 gxh5 a5 b3 a4 Bg2 a3 Bh3 Bd7 Bf1 Ba4 bxa4 Qf6 Bh3 Qd6 Bf1 Qd8 Kf2 c5 Kg3 f5 d4 g5 h4 f4+ Kh2 f3 e4 c4 d6 a2 d5 g4 h6 c3 b7 c2 a5 Qb6 e6 Qc7 a6 Rh7 h5 Rh8 h7 Qd7 e7 Qc7 e5 Nf6 a7 Nfd7 Ne2 Qc3 Qd4 Kf7 e8R Qd3 Bb2 c1R Nd2 Rc4 Rb1 Qb3 Re6 Nc5 d7 Kg7 d8N Ne4 d6 Nd7 b8B Qc2 Nb7 Qd3 Nc3 Rc5 Na5 Rb5 Be2 Nef6 Rhd1 Qg6 Ba1 Kf7 Qf4 Rg8 h8Q Qg7 Qg3 Nh7 Qh4 Be7 Rh6 Ndf8 d7 Ng6 e6+ Kf8 Rb4 Bc5 e7+ Kf7 Be5 Rge8 Rb2 Rab8 a8N R8b6 Rb3 Rd6 Nb6 Rd3 Nbc4 g3+ Kh1 g2+ Kh2 Reb8 e8N g1R Nf6 Re1 Ng4 R8b7 Ra3 Rb1 Rb3 Rb8 Rb6 Rb5 Bf1 Ree3 Be2 Rb1 Rc6 R8b5 Rb6 Ngf8 Rhd6 Ng6 Rf6+
Q1n2Nr1/3PN2B/1Q5R/1QP4r/N1K2b2/N1ppqr2/5rBB/N1k1n1R1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 axb5 g5 hxg5 Ba6 exf5 Bb7 c4 Bc8 b6 c5 Rh5 Ba6 Rh1 d4 d3 Qd5 cxd5 c4 Nd2 c3 Nb1 Bc4 dxc4 Bg7 Na3 Bh6 Nb1 Bf8 Ke2 Kd7 Kd3 Kd6 g4 Kc5 b4+ Kd6 f4 h5 g6 e5 b7 a5 g5 h4 b5 Kc5 f6 Kb4 f7 a4 c5 a3 f5 a2 b6 h3 g7 h2 g6 Nf6 g8B Rh7 d6 Ra6 g7 Rh5 Ne2 Ra7 Na3 Nd5 f6 Ne7 Bf4 Rh8 Bg2 Nbc6 b8Q Nc8 Qf1 Kb3 b7 Kb2 Qa8 e4+ Kc4 e3 b8Q+ Nb4 Nc1 e2 Qb6 e1Q Nb3 Nd3 Bh7 Qe3 g8N Ne1 Ne7 Bh6 f8N Rg8 f7 d3 Nd7 Rb7 f8N Rc7 Rg1 h1R Bh2 Bf4 Qff3 Ra7 Qfc6 Ra6 Rc1 a1R Qcb5 Ra7 Rd1 Rc1 Rd2+ Rc2 Na1+ Kc1 Rf2 Re2 Rf3 Rc7 Rh3 Rf2 Rh6 Ra7 Nf6 Rc7 Nfd5 Rc6 d7 Rf6 Q6a6 Rf5 Nb6 Rh5 Na4 Rh3 Qab6 Rhf3 Bg3 Rh5 Bh2
Q1K5/p5BN/2R1R1RB/bB2q1nR/P2b1N2/p3r1b1/P2Q1b2/Nn1R1k2 b - - 0 1 illegal: Other
6Bn/p3RrpR/Q1QQ2Qb/2PnB1N1/5r1R/2nQ2b1/N1B4P/2K1n2k b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 d5 e4 e5 g4 d4 gxh5 Qd5 f3 Bf5 exd5 e4 Be2 e3 Bf1 Be4 fxe4 Be7 Qd3 Bd6 Qd1 Bf8 b4 Ke7 c4 Kf6 d6 Ke5 h6 Kf4 d7 f5 d8Q d3 c6 Nf6 c5 Na6 h7 Ne8 b6 Nf6 b7 Ng4 b8Q+ Ne5 c7 Ng4 c8B+ Bd6 b5 Rf8 h8R Rg8 e5 Nc7 e6 Re8 e7 Rf8 e8Q Nh6 b6 Nd5 b7 Nb6 Qg6 Nd5 Be6 Rf7 Qe2 d2+ Kd1 Be5 Kc2 d1N Qbd6 N1c3 b8Q Ke4 Qbb5 Bg3 Q8d7 Raf8 Qba6 Bf4 Qd1 e2 Nf3 e1B Q7c6 Beg3 Bb2 Ke3 Qdd3+ Kf2 Be2 Kg2 Re1 Be3 Ng5 f4 Ra3 f3 Rh7 f2 Ra4 f1N Rh4 Nd2 Bd1 Nf3 Ba1 Rf4 Bg8 Nf7 Bb2 Bc1 Re7 Nh8 Ba1 R8f7 Bb2 Ne2 Nc3 Kh1 Na2 Ne1+ Kb1 Bd2 Be5 Nc3+ Kb2 Rf1 Bc2 Bdf4 Ne6 Bh6 Ng5 R1f4 Kc1
B4nR1/5R2/1KQ2Nrb/N3b3/b1qP1pp1/BB2q2Q/P2qN3/RN2k1N1 b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 fxe5 a5 b4 f5 bxa5 g5 g3 f4 g4 Nc6 h3 Nce7 h4 Nf5 gxf5 g4 Bg2 Ra6 Bh3 Rg6 Bf1 Rg5 hxg5 Be7 Bh3 Bd6 Bf1 Bf8 e4 Ke7 Ke2 h5 Kd3 c5 a6 h4 e6 Kd6 a7 Ke5 a8B h3 g6 h2 g7 b4 Kc4 b3 Kb5 Kd4 e5 c4 f6 b2 f7 c3 d6 c2 d7 Bb7 e7 Be4 e8N Bb7 e6 Nf6 g8R Bh6 f8N Nh7 e7 Bc6+ Ka6 Qc7 d8N Ba4 Nb7 Qc4+ Kb6 Ke4 Bg2+ Kd3 Ne6 Nf8 Na5 Rh7 Nf6 Rg7 e8Q Rg6 Na3 b1Q+ Qb5 Rg5 Bgd5 Qb4 Nd4 Rg6 Nde2 Qb3 Bb2 c1B Nb1 Qb4 Ba3 Bb2 Qc1 Be5 Qf1 Kc2 d4 Qd2 Qh3 Kd1 Qc6 Ke1 Nf3+ Kf2 Rc1 h1Q Nfg1 Qf3 Rc3 Ke1 Re3 Bb8 Re7 Qfe3 Rf7 Be5 Be6 Qcd3 Bb3 Qb5+ Ka7 Qc4 Kb6
1N4B1/bkN5/5PB1/1KB1BpnP/Q2r2qR/3R1pQ1/2N2q1n/1R2qnB1 b - - 0 1 illegal: Other
3R1BBk/1NR2qq1/P1N3Q1/1pR3Qr/2RbQ3/npr2r1R/4P2K/1q2N3 b - - 0 1 illegal: Other
b1KRRRr1/q1P3k1/rB2QP2/3qBp2/3R4/1qpNr2n/4Q3/1Q1R1BN1 b - - 0 1 illegal: No possible last move, all moves rejected
K4B2/1Q2R1r1/B1Qq1P1p/1P1R2pQ/q6R/2NnN1QQ/q1kB2n1/4r2n b - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 d4 h4 d3 f4 Nh6 e5 Be6 h5 Ng8 cxd3 Ba2 d4 Bf7 d5 Bg6 hxg6 Bg7 Ra2 Na6 Ra1 Bf6 exf6 Nb8 Kf2 Kd7 Kf3 Kd6 Ke4 Kc5 b4+ Kd6 d4 c5 b6 a5 b7 e5 f7 c4 f8B+ Ne7 g7 c3 g8Q c2 f6 a4 f7 h6 f5 a3 f6 a2 Ne2 Qa5 Qg7 Qb6 Bd2 c1Q Ng3 Qc3 Nf5+ Kc7 d6+ Kc6 d7 Ra3 d8R Rb3 Ba6 Qb2 Qh5 Nd7 b8Q Rg8 Ne3 Nf5 Nc3 Ra3 Rad1 a1Q Rde1 Qba2 Rh4 Qd1 Re2 Qa4 Qc8+ Qc7 d5+ Kb6 Qh7 Rg7 d6 Rb3 Kd5 e4 b5 Ka5 Re1 Ne5 d7 Ng3 Re2 Qb6 Qc6 Nd3 Qf5 Nh1 Qh3 Qb8 Qb7 Rb1+ Kc6 Qh2 Qg3 Rc1 Kc7 Ra1 Kb8 Rf1 Ka8 Re1 Qh3 Qe5 Bd6 Qc5 f8Q Kb4 Qfe8 Kb3 Bf8 Qd6 Qe5 Kb2 Qeg3 Kb3 Rb8 Kb2 d8Q Kb3 Qdc8 Kb2 Ned5 e3 Qcc6 Kb3 Re8 Kc2 Rg2 e2 Re7 Rd1 Rf2 e1N Rf5 Ng2 Rfe5 Re1 Ne3+ Kb2 Rd5 Kb3 Ned1 Kc2 Ne3+
1bN4b/2BR4/1Kb2BBP/1Q3QN1/6B1/pq1B1qR1/RPpN1r2/n1b1k3 b - - 0 1 illegal: No proof kernel
k1N1Q2r/R2q1RrR/2p1N3/1PN1PRn1/K3n3/BQ4p1/4rBr1/3RrB2 b - - 0 1 legal: proof: c4 e5 a4 g5 f4 d5 cxd5 b5 axb5 f5 g3 g4 fxe5 f4 h3 f3 Ra3 Bh6 Ra1 Bf4 gxf4 g3 Qc2 Nc6 Qd1 Bg4 hxg4 Nb8 d4 Kd7 Kd2 Kc8 Kc3 Kb7 Kb3 h5 e4 a5 d6 f2 e6 c6 e7 h4 e8Q h3 d5 h2 g5 Rh5 g6 Re5 g7 Ra6 d7 Ra7 d6 Ne7 g8N Ra6 b6 Ra7 f5 Rb5+ Ka4 Re5 b4 Na6 b5 Ra8 f6 Qb8 d8R Re6 d7 Qc8 e5 Ng6 f7 Rf6 f8R Rf7 Nd2 Nf4 Qb3 Nh3 Ne7 Ng5 Nh3 Rg7 Nf4 Rb8 Ra2 Ka8 Rf7 Qc7 Nc8 Nc5+ Ka3 a4 Ne4 Qd6 Ne6 Qd5 Kb4 a3 Ra1 a2 Ba3 Qd6 Rd1 a1R Rf5 Na4+ N4c5 Nc3 Rf7 Nce4 Ka4 Ra2 Ra1 Rb7 Rf5 Rc7 Rd1 Re2 b7+ Kb8 Qe7 Rg8 Rdf8 Rh8 d8B Qd2 Qe8 Rg7 R8f7 Qd7 Bh3 f1R Bb6 Rfe1 Bf1 Rg2 Ba5 Re3 Be1 Ree2 Bf2 Rh6 Ne7+ Ka7 b8R Rh4 Rb6 Rh8 Nc8+ Ka8 Rb7 Rf8 Rg1 h1R Ra1 Rfh8 Rd1 R1h4 Rh1 Rf4 Rh2 Rf3 Rc7 Rfe3 Rh7 Re1 Rb7 R3e2 Ra7+
1b2R1K1/b1Rb1P1P/1pR2Q2/1BNQ4/QR2qNk1/Bb3R2/r5rp/2N3r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 h4 d4 Rh6 dxc5 Rh8 h3 g5 Be2 Nf6 Bf1 Nc6 Qd4 Nh5 Qd1 Ne5 gxh5 g4 Be2 g3 Bf1 Ng4 hxg4 Ra7 Rh2 Ra6 Rh1 Ra8 Kd2 Kf7 Kd3 Kf6 Kc4 e5 Kd5 e4 c4 b6 a4 h3 f4 e3 c6 e2 c7 e1R a6 d6 g5+ Ke7 c5 h2 a7 g2 g6 Kf6 a5 Bb7+ c6 Qe8 c8R Qe7 h6 Re2 h7 Bh6 a6 Rg8 g7 Ra2 Nh3 g1B Ba3 Re8 g8R Qd8 Nc3 Rb2 Qa4 Rb1 Rc7 Rb4 Na2 Re2 Nc1 Bg7 Re8 Rbe4 Rb1 Be3 Rb4 Ra2 Bb5 Bd4 Rf1 Be5 Rf3 Rc8 a8Q Re1 a7 Rg1 Qb8 Bh6 a8Q Qe7 Q8a5 Rd8 Qc8 Rd7 Qd8 Bc8 Qa8 Bg5 Q8a5 Bh4 Qa8 Bg3 Qb7 Kf7 f6 Kg6 f5+ Kh5 Nf4+ Kg4 f7 Qh4 Ke6 d5 f8N d4 f6 d3 f7 d2 Qf6 d1B Qba8 Rd6+ Ke7 Rdd2 Nd7 Bb3 Kf8 Rdg2 Nc5 Bd7 Kg8 Bd6 Rb7 Bb8 c7 Ba7 c8R Rh1 Rbc7 Rhg1 Qd6 Qe7 Qf6 Qe1 Qd5 Qe4 Nfd3 Be5 Nf4 Bd6 Rc6 Bdb8 R8c7
3B1r2/6N1/4RNrB/QBk5/P2r2p1/1QQp2q1/rnPR1R1Q/nq4QK b - - 0 1 illegal: No possible last move, all moves rejected
1b4B1/2RQ1B2/3R1K2/RQ1b1P2/b1R2p2/n3rP1p/2r1p2N/B1R1NqNk b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 c5 d4 b4 dxc5 f4 a3 Nc6 axb4 Nd4 b5 Nf5 exf5 Ba6 Qf3 Bb7 Qd1 Bc8 Kd2 Kf7 Kd3 e5 Ke4 h5 g4 d6 c4 h4 a6 h3 g6+ Kf6 f3 Kg5 g7 Kh4 a7 Kg3 g5 Qf6 b6 Qh6 c6 Be7 c7 Rh7 b7 Bd8 b8Q Kf2 g6 Ne7 g8N Qh4 g7 Kg3 c5 Bb7+ c6 Nd5 c8R Be7 Nf6 Nc7 g8B Nb5 Bfc4 Kg2 Na3 Qf2 Ng4 Qf1 Nc2 Na3 Rc7 Bd8 Bb3 Re7 Nh2 Re8 Kd5 e4 Bb2 e3 Rc1 Be7 Ke6 d5 Qd3 d4 Ba1 Bd6+ Kf6 Re4 Qe8 Rc8 Qb5 d3 a8R d2 Qd7 d1B Ra5 Re5 Bbf7 Ba8 Rb7 Bb8 c7 Re4 Rb6 Bd5 Rd6 Re5 Nd4 Ba4 Nc2 Rf8 c8R e2 Rc4 Re3 Ne1+ Kg3 Ng4 Rfe8 Rh2 Rc8 Rf2 Rc5 Nh2 Rc7 Re4 Rc2 Rc4 Qg2 Rf1 Qf2 Nd3 Kg2 Ne1+ Kh1 Rc7 Rd2 R1c4 Rc2 Nd3 Qg2 Rc1 Qf1 Ne1
1R1k1Bb1/p2n4/pq3N2/1pB1R1R1/1KQN1rNq/1Q4bN/P3P3/n2N1B2 b - - 0 1 illegal: Other
NQ6/3QP2k/n3p1NN/1pPBb1Bb/nQ4r1/7B/4QQpr/1RK2n1R b - - 0 1 legal: proof: d4 a5 g4 h5 gxh5 d5 e4 c5 dxc5 e6 exd5 a4 f4 a3 f5 Bd6 f6 Bf8 bxa3 Be7 a4 Bf8 a5 Qe7 fxe7 Kd7 c6+ Ke8 Kd2 g5 c4 b5 h4 f5 a4 Kf7 c7 Kg7 h6+ Kh7 a6 f4 a7 f3 c5 g4 d6 f2 h5 g3 d7 Na6 d8Q Nf6 a5 Kg8 h7+ Kg7 h6+ Kg6 Nf3 Bb7 c8Q Ng8 Ne5+ Kg5 Qd4 Nc7 a6 Bg2 Ng4 Kg6 Na3 Rb8 a8B Ne8 a7 Bf3 Nc4 Nc7 Qe2 Bb7 Rb1 Bc6 Qcd7 Bf3 Qde3 Nf6 Bd5 Rc8 a8N Na6 Kc2 Rg8 h8Q Bg7 h7 Ne4 Bg2 f1N Q3f2 Bb2 Qhd4 Nc3 h8Q Na4 Qc3 Rg7 Qb4 Bf6 Qh2 Rh8 Bf4 Rh5 Nce5+ Kh7 Nh6 Rh3 Be3 Bh5 Kc1 Rg4 Ng6 Bh8 Bg5 Ba1 Qhg1 Rh2 Bh3 Bf6 Qff4 g2 Qb8 Be5 Qgf2
N1Nr3R/1P2QK2/2npR2p/7Q/rRNBrQ1b/7k/1P2pn1Q/Qb5B b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Qb6 g7 Bc8 g5 Qg6 hxg6 Nb8 Ke2 e5 Ke3 Ke7 Ke4 a5 Kd5 d6 c4 h6 b6 e4 b7 a4 c6 a3 c5 e3 c7 a2 f6+ Kd7 c6+ Ke8 f7+ Ke7 Nd2 Bd7 c8R Rh7 c7 Ra4 Nh3 Rh8 Bg2 Be8 Re1 Ra8 Bh1 Nc6 Qh5 Rb8 Nf4 Nd8 Nc4 Rh7 Ne6 Nc6 Bd2 Ra8 Bc3 Nd8 Bd4 Bd7 Rb8 Bb5 c8N+ Kd7 Nc7 Ra7 Na8 Be7 f8Q Ra3 Qf4 Ra4 Rad1 a1R Rd3 R1a3 Rb3 Ra2 Rb4 Nc6 Re2 Rh8 Re1 Kd8 Ke6 Nf6 Kf7 Kd7 g8Q Ne4 g7 Nf2 g6 Bh4 Qh7 Rd8 g8Q Ra1 Re2 Re1 g7 Ba6 Qgh8 Bb5 g8Q Ba6 Na5 Bd3 Nc4 Bf5 Qg1 Bb1 Kg7 Ke6 Qhf8 Bg5 Qd3 Be7 Qa3 Bh4 Qa1 Rd1 Be5 Rd4 Re1 Re4 Qe7+ Kd5 Kf7 e2 Rf1 Nd1 Rf3 Nf2 Re3 Rh8 Rf3 Re3 Bd4+ Re5 Na7 Re8 Qd2 Ke4 Re3+ Kf4 Rd8 Re6 Nc8 Re5 Rg3+ Re3 Rg6 Rg8 Re6 Re8 Bg2 Kg3 Bh1+ Kh3 Qdc1 Re4 Qf4 Rg8 Re8 Rg5 Rh8 Rg8 Na7 Re8 Nc8 Rd8 Qgh2#
2Q5/N1B2p2/2R2bPK/1P2q1Np/1rnN1RB1/RR2qBp1/4r1k1/Q3r2R b - - 0 1 illegal: No possible last move, all moves rejected
kq2RKBr/BR2PN2/1QQ1B1N1/1q2q3/7p/p1p1B2P/R2nbBb1/7Q b - - 0 1 legal: proof: c4 e5 a4 b5 axb5 e4 b6 e3 dxe3 Nc6 e4 Nb8 e5 Qf6 Ra2 Qe7 Ra1 Qd8 b4 a5 b7 a4 c5 Ra6 b5 Rb6 cxb6 Qh4 Ra3 Qg5 Ra1 Qd8 e4 Ke7 f4 g6 e6 Kf6 e5+ Kf5 e7 Bg7 e6 Kf6 g4 Bf8 Nd2 Kg7 Nb1 f5 Ne2 Kh6 Ng1 Bg7 Ra3 Bf6 Ra1 Be5 fxe5+ Kg7 Be3 f4 Bc1 Nc6 Ba3 Nd4 Bc1 Nf5 gxf5 Qf8 Nc3 Qe8 Nb1 Qd8 Kd2 h5 Kc3 d5 Kb4 d4 Kc5 c6 b8R g5 e8Q a3 b7 d3 h3 f3 e7 f2 f6+ Kh6 b6 h4 f7 Kg7 f8B+ Kh7 e6 d2 Ra2 g4 Bc4 f1B Nc3 g3 Nb5 g2 Nf3 Nh6 Nd6 Kg8 Ne5 Nf7 Ng6 Ne5 Nf7 Be2 Re1 Nf3 Bb3 Bd7 Kd6 g1Q Bd5 c5 Bh6+ Kh7 Be3 Kg7 Bf2 Bc6+ Qd7 Kf6 e8B Qc8 Bc4 Kf5 Ke7 Ke4 Qd6 Qc7+ Bd7 Qh2 Bb3 Bd5 Qc6 c4 Re8 c3 b8B Qcf4 b7 Qe5 Bba7 Qb8 Rh1 Qhe5 Qf1 d1Q Bce3 Qb1 Qg1 Qc8 b8Q Nd2 Qbb6 Qcb8 Qh2 Qd3 Rb1 Qb5 Qg2+ Kf5 Qh1 Bg2 Qc8 Ke4 Qca6 Rh5 Kf8 Rh6 e7 Rh7 Nd8 Rh6 Bg8 Rh8 Nf7 Kd5 Qaa5 Rh7 Qf6 Rh8 Be6+ Kc6 Rbb2 Kb7 Qb6+ Ka8 Rb3 Qc6 Qf3 Qb7 Qfc6 Be4 Qd4 Bd5 Qcc5 Qc6 Rb7 Qb5 Qc6 Bg2 Qdb6
B3B3/BR1Q4/R1PQ1B2/Qp2Pb2/qbn4p/n1p4k/6n1/NBKnR1N1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 b5 b4 Na6 bxa5 Ra7 c4 Nb8 c5 Ra8 d4 h5 Qb3 Ra6 Qd5 Rb6 cxb6 c5 Qb3 c4 Qd1 Rh6 Na3 Rc6 Nb1 Rc5 dxc5 Be7 Rh2 Bd6 Rh1 Bf8 Kd2 Ke7 g4 Ke6 a4 d5 e4 f5 a6 d4 a5 h4 b7 f4 c6 d3 a7 f3 a8Q f2 g6 Qd5 a6 Qd7 g5 Qe7 a7 Qc7 g7 Nh6 g8R Bg7 g6 Nf7 Bb2 Nd7 b8B Qb6 Kc1 Bh6+ Nd2 Qd8 g7 Qf6 Ra6 Nd6 Rf8 Qg6 Rf7 Qg4 g8Q Nb6 Qd8 Bf8 Nb3 Bd7 Bd4 c3 Na1 Ndc4 Qb7 Bb4 a8B Bc8 Ba7 Na3 Qdc7 Nbc4 Qa5 Bd7 Qb8 Bc8 Rb7 Bd7 Bg2 f1N Qbc7 Nfe3 Qd6+ Kf7 e6+ Kg6 e7+ Kg5 e8B Bf5 Bh3 Ng2 Qd7 Kf4 Bf6 Kg3 e5 Qf4+ Qd2 Qd4 Qh6 Qg4 Qf8 Qe4 Qfd6 d2+ Kd1 Ne1 Bf1 Ng2 Bd3 Qf4 Ne2+ Kg4 Re1 Kh3 Be4 Nb1 Kc2 d1N Bd3 Qd4 Kc1 Nba3 Bb1 Qf2 Nd4 Qa2 Nf3 Qb3 Qf8 Qa4 Ng1+ Kg3 Qfd6 Kg4 Ne2 Kh3 Ng1+
B3KR1B/bk1N2R1/pqR5/Q1bBQ1p1/1q1P2b1/P2p3Q/2NB2nq/4B3 b - - 0 1 illegal: No possible last move
2N3N1/bBR1b1p1/pP1B4/rQ2N1k1/2np2n1/2PQ3B/r3p1R1/1BB1R1K1 b - - 0 1 illegal: No proof kernel
7B/3R3b/Q3QPqR/b2p3k/p1B1PRr1/r1BN4/R1pK1pr1/1N2R1Q1 b - - 0 1 illegal: No possible last move
k3nbn1/2RK1Nqq/qQ2RR2/1Q4Q1/BNn2r2/7B/r1bP2PR/3rB2R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Rh4 Kd7 Ke2 a5 Kf3 e5 Kg4 c5 b4 Kc7 f4 Kb7 d6 c4 d7 a4 b6 a3 g6 c3 b5 c2 f6 h5+ Kf5 a2 Ke6 e4 g7 e3 f5 e2 f7 e1R+ Qe2 Rh7 f6 Bc5 f8R Ba3 f7 Nf6 g8B Rh8 Nc3 Be7 Nd5 Bb4 Bb2 c1N Bd4 Ra7 Nf3 Bd6 Ng5 Ra5 Bf2 Ra6 Re8 Nd3 f8R Nc6 Nb4 Qc7 Rf7 Kb8 b7 Ne7 Bh7 Qb6 Bf5 Ne5 Rd1 Ka7 b8R a1Q Rb7+ Ka8 Rc7 Ra2 Qg4 Qc6 b6 Rf8 Bb5 Neg8 Ba4 Rh1 Rh3 h4 Qe2 Qb2 Qb5 Nc4 Ree7 Ne8 b7+ Kb8 Bg4 Qg7 Rff3 Rf5 Nf7 Qa6 Rf1 Rd5 Rc1 Rd4 Rf6 Rf4 Bg3 Rhf1 Re1 R1f3 Rg1 Rf1 Qg5 Rd1 Be1 Ka7 Rf1 Kb6 b8Q+ Bb7 Rhf3 h3 Rc3 h2 Rh3 h1Q Bf5 Qh2 Rh1 Bc5 Rh8 Qh3 Bg4 Qd3 R8h2 Qdh7 Bh3 Bd6 d8Q Bc5 Qd7 Bd6 Rc8 Bc5 Qbd6+ Ka7 Rc7 Ka8 Qb5 Be4 Kd7 Bc2 Qdb6 Bd6 Re2 Bf8 Ree6
1N1k4/qB2Br1N/6N1/3n1r1q/1N1bPQb1/R3rN1P/Q1RKQ3/1qR2b1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 f5 e4 c5 d4 g5 d6 a5 d7+ Ke7 h3 f4 d5 g4 b6 g3 e6 g2 h6 a4 b7 f3 h7 f2+ Kd2 c4 b5 a3 b6 a2 Na3 Nh6 Qe2 Ra7 Nf3 g1R Nc2 Qe8 d8R Bd7 Rc8 Rg3 Nb4 Ng4 Ba3 Nc6 b8Q Bg7 b7 Rf8 h8N Bd4 Qf4 Qh5 b8N Rf5 Rc7 Kd8 d6 Bc8 d7 Ne7 Ng6 Nd5 Rc1 a1Q Rc2 Ra5 Ra7 Rf7 Ra8 Nc7 Ra6 Raf5 Ra4 Nd5 Rg1 Ne5 e7+ Kc7 e8N+ Kd8 Nd3 Qh4 Rb2 Rfg5 Nf6 Kc7 Nh7 Qh5 Nh2 Re3 Be7 Qa2 Qe1 Qa3 Qh4 Ng4 Nf3 Qc5 Be2 Qa7 Nb4 Re5 Qd1 Rg5 Re1 f1B Ra5 Nf2 Qf4+ Re5 Ra1 Nh1 d8Q+ Kb7 Ra6 Bg4 Qa5 Kc8 Qa2 Ref5 Ra3 c3+ Kc1 c2 Kd2 Nc7 Bc4 Nd5 Qe2 Bc5 Rd1 Bb6 Bb5 Bd4 Bc6 c1Q+ Ke1 Qa4 Rc2 Qb1 Kd2 Qa5 Rdc1 Qa7 Bd6 Kd8 Bb7 Rg7 Bf8 Rgf7 Be7+
K1b1q3/4QBq1/6Qr/Q1qr1P1b/RB1n2QN/1P2QnRN/1N3n1b/1kB5 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f6 Kd7 Ke2 Kd6 Kd3 Ke5 Kc4 Ke4 Kc5 a5 g4 h5 d4 e5+ d6 c6 f4 a4 f5 h4 d5 a3 b3 h3 f7 a2 g6 h2 b6 Ra6 b7 Qe7 g7 Qe6 g5 Rh4 g6 Ra7 Kb6 c5 Bb2 c4 Nc3+ Ke3 Na4 c3 Qc1+ Ke4 Bc4 c2 Nh3 Rh7 Rg1 Nh6 g8Q h1B g7 Qe8 d7 Nc6 b8B Ng4 d8Q Bd6 f8N Rh6 Qe7 Ra5 Ng6 Nf2 Nh4 Bf3 Qgf7 Bh5 g8Q Rc5 Bc3 Ra5 Bb4 Rc5 Qd2 c1Q Qe1+ Kd4 Qg4+ e4 Qfg6 Bh2 Bf4 e3 Rg3 e2 Kc7 Qc2 Qc1 e1N Kb6 Bd7 Kb7 Bc8+ Ka8 Nf3 Qce1 Na7 Q1e6 Nb5 Qb6 Qc3 Qa5 Qc2 Qea7 Ke4 d6 Qc1 Bg8 Kd3 d7 Kc2 d8Q Rd5 Bf7 Qce3 Qdg5 Qd4 Qae7 Qc5 Rb1 a1Q Bc1 Qac3 Nb2 Qg7 Ra1 Nbd4 Ra4 Kb1 Qge3
7Q/1kbq1R2/2bN1n2/1PqB2NQ/3r3N/1QQ1nn2/1BrQP1q1/1K2B1Rb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Kd7 Kd2 g5 Kc2 a5 h4 c5 b4 Kc7 e6 f5 e7 f4 e8Q a4 b6+ Kb7 b5 f3 h6 f2 h5 g4 d6 g3 h7 g2 d5 c4 h6 c3 d7 a3 d6 a2 Na3 Ra6 Bb2 Ra7 Nc4 Ra5 Nf3 g1Q Nh4 Nc6 Bg2 f1B Bd5 Nf6 Qh5 Qg2 Rg1 Ra4 Qb1 Qc7 d8Q Bd7 Kc1 Be8 d7 Bd6 Kc2 Rg8 h8Q Rb4 Kc1 c2 h7 Rg4 Qg7 Rd4 h8Q Rb3 Qg3 Rc3 Qe3 Qc8 Qh3 Bc7 Nd6+ Kb8 b7 Ne5 Qd3 Nf3 Qd2 Ka7 b8B+ Kb6 Qe7 Rc5 d8N Bc6 Qc3 Qd7 Qee3 Rcc4 N8f7 Rc5 Ne8 Kb7 Ng5 Rcc4 Qed2 Rc5 Ba3 Rcc4 Qbb4 Rc5 Rb1 a1N Qbb3 Rcc4 Kb2 c1Q+ Ka2 Nc2 Bb2 Ne3 Ra1 Ba5 Bg3 Bc7 Be1 Qc2 Rc1 Qcf5 Rb1 Qe5 Rc1 Qee7 Kb1 Qc5 Qcb4 Rc2 Q4c3 Qgh3 Rd1 Bg2 Rc1 Bh1 Nd6+ Ka7 Rg4 Qg2 Rf4 Nh7 Rf7 Nf6 Bg3 Kb6 Rg1 Ka7 Be1 Kb6 Nc4+ Kb7 Nd6+
1nR1Q1nq/N5bR/1bR1qPB1/2N3Nb/3Q3r/1P2r3/KB1Q1n1R/1R3kq1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 f4 Kf6 d4 e5 Kd2 c5 Kc2 a5 Kb3 g5 b6 g4 d6 c4+ Ka2 c3 b3 a4 h6 a3 d5 g3 b7 g2 h7 c2 d7 e4 h5 e3 d6 e2 h6 e1Q Nc3 Qe4 Rb1 Qe1 Ne4+ Kf7 f6 Ke6 f5+ Ke5 f7 Qd2 f6 Kf4 Nh3+ Ke3 Rh2 g1Q Nhg5 Qf2 Nc5 Ra5 Bd3 Bg7 f8R Qg1 Bg6 Qe8 d8R Bg4 d7 Bh5 Rc8 Qe6 d8Q Ra8 Ka1 a2 Rc6 Ra4 Qd7 Rh4 Rfc8 Re4 Kb2 a1B+ Ka2 Be5 Qd8 Bc7 Qd5 Bb6 Qd4+ Kf4 Qe2 Kg3 Qd1 Qf4 Qe2 Re3 Qed2 Nd7 b8N Qh4 Nba6 Nb8 Nc7 Qhh3 Nb5 Qh4 Na7 Qhh3 Bb2 c1N+ Ka1 Nd3 Ka2 Nf2 Ba3 Ne7 Bc1 Rd8 h8Q Ng8 h7 Rf8 Rh1 Kg2 Rh2+ Kf1 Nd7 Rf7 Nc5 Nh6 Qe8 Ng8 h8R Rd7 Q4b4 Rd4 Rh7 Rh4 Qed8 Qe8 Qbd4 Qhe6 Qe7 Nh6 Qf7 Qh8 Qe8 Ng8 Bb2+
7K/qN3k2/r2r1P1N/1qB5/R1nrnP2/nNRqbBQ1/5Q2/2QRNbN1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Kf3 e5 Ke4 g5 h4 c5 d4 g4 b4 c4 f6 g3 d6 a4 h6 c3 h7 a3 d7+ Kf7 Kf5 e4 h5 g2 d5 c2 h6 e3 d6 e2 b6 e1R b7 a2 b5 Ra5 Be2 Rf1 Na3 Nc6 b8R Nb4 Be3 c1N Bf3 Nc6 Nc2 Bg7 Ne1 Ne2 Qc1 Ba6 Bc5 Qe8 d8N+ Kf8 b6 Nb4 b7 Qb5 Kg6 Ng3 Rc8 Ne4 b8Q Nc2 Qb6 Na3 d7+ Nd6 Qc7 Ra4 Rh4 Rd4 Rb1 a1Q Qb8 Rd2 Ra4 Qc3 Rc7 Rd4 Nc6+ Bc8 d8N Bh3 Na5 Qcd3+ Be4 Ke8 Nb3 Ndc4 f4 Bf8 Qa7 Bd6 Kg7 Ne7 Bb7 Nc8 Bf3 Be5 Qb6 N8d6 Nb7 Ne4 Rc6 Rf8 h8Q Bc7 Qa7 Bb6 h7 Rf2 Rc7 Rd2 Qg8 Ra2 h8N Rd6 Bf2 Be3 Nf7 Rd2 Kh8 Rd4 Ne2 g1Q Nh6 Bf1 Ra1 Ne5 Rc3 Nec4 Kh7 Ra2 Qg3 Rf7+ Kh8 Rfd7 Rb1 R7d6 Qc5 Qh1 Ng1 Qh5 Qc7 Qhc5 Qb2 Qa7 Rd1 Ra6 Qc1 Rd2 Qb6 Rd6 Ng8 Kf7 Qc5 Qe2 Qb6 R2d4 Nh6+ Ke6 Qc5 Qd3 Qb4 Bd2 N3a5 R4d5 Bc5 Be3 Qbb2 Rd4 Qbh2 Rdc6 Nb3 Rcd6 Ng8 Kf7 Qhf2 Kf8 Nh6 Ke8 Ng8 Kf7 Nh6+
3B1Rbb/1RN4B/KQ2NP1P/1B5n/3k3r/QQ1q1q2/1rn1QR2/2n1brQ1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 b4 a5 h4 g5 f4+ Ke4 c6 e5 c7 d6 f6 g4 f5 g3 f7 a4 h6 a3 h7 a2 b6 g2 Kb5 d5 c4 d4 c5 d3 h5 d2 h6 Nc6 b7 Qg5 b8Q Qh4 Qe2+ Kd5 Nc3+ Kd4 Rb1 d1R Qb6 a1Q Nh3 g1N Ng5 e4 Nd5 e3 Rh2 Ne5 c6+ Bc5 f8R Qc3 Rf2 Ra4 Ne4 Be6 c8B Qa3 c7 Nc6 f6 Qb3 Bd2 Qg3 Bb7 Qf4 c8Q Qf3 Nc7 Nge7 Qa8 Nf5 Rb2 Rg8 h8Q Ng3 Qg7 Nh5 Qg6 Ra2 Qa3 Rg7 Qg5 Bg8 Ka6 Qd3+ b5 Re1 Qg3 Rg4 Ba5 Rh4 Bc8 Rb1 Bf5 Re1 Bh7 Nb4+ Kb7 Nc2 Ka6 Rea1 Rb3 Rb2 Qg7 Nh3 Qg1 N3f4 Rb4+ Qc4 Rb3 Nd3 Rb4 Nc1 Rb3 Ke5 Rb4 Bd6 Nc5 Kd4 Qb7 Rab1 Qd2+ Ke5 Re8+ Be6 Nd5 e2 Bd8 Nd3 Nc7 Qc3 b6 Bf8 Qb8 Qb3 b7 Bg7 Rf8 Bg8 Qa7 Qc3 b8Q Bh8 Qb5 Re1 Qba4 Rd1 Rb7 Nc1 Q4b3 Qce3 Qe1 Kd4 Qab6 Qd2 Bh3 Qde3 Bd7 Qee4 Qd2+ Qed3+ Bb5 Rf1 Qd1 e1B Qd2 Qd5 Qe2 Q5f3 N5e6#
q3B3/krnPb2Q/4rqPn/Q7/4Q1bN/1nrN2R1/KB2R1N1/1NN1q2R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 h5 d4 e5 Kd2 a5 Kc2 c5 Kb2 Kc7 f4 Kb7 f6 h4 b6 h3 d6 e4 g6 h2 b5 a4 g7 e3 d5 a3+ Ka2 e2 f7 e1R g5 c4 d7 c3 f5 c2 f6 Ra6 d6 Qc7 d8Q Ra8 Qe2 Rh5 Bb2 c1Q Qe4+ Q1c6 Ne2 Bg4 Nc1 Ne7 g8Q Ra4 Qgh7 Bg7 f8N Ra6 f7 Bf6 Ne6 Nd5 f8N Re2 Nf4 Ra7 Ng2 Qe7 Ng6 Na6 N6h4 Nac7 g6 Ne3 d7 Re1 Bc4 Nf5 Bf7 Nh6 Be8 Rc5 Rg1 Re3 Re1 h1Q Re2 Ne6 Qc7+ Ka8 Qce5 Nc7 b7+ Kb8 Qc3 Qe1 Qa5 Rec3 Qh8 Ra6 Qh7 Ka7 b8R Qa8 Rb6 Re5 Rd6 Qed8 Rd3 Be7 Rg3 Re6 b6+ Kb8 b7 Ka7 Qaf5 Rab6 b8N Rb5 Na6 Rb7 Bf7 Qh8 Nb4 Qf6 Be8 Rc4 Kb3 a2 Qb5 Rc2 Nbd3 Rc3+ Ka4 Kb8+ Qa5 Bd6 Nb3 Qd1 Na3 Be7 Rc1 a1N Nb1 Qd2 Rh1 Qe1 Nbc1 Nb3 Qf4 Bd8 Ka3 Be7+ Ka2 Ba3 Qae5 Ka7 Qfe4 Be7 Qa5+
BQ2R2q/1Pn1NqR1/1KbP1rr1/N3b3/2R3QR/R1B5/4bQ1r/k3n1qN b - - 0 1 illegal: No possible last move
B1nK1QBk/PQ1b4/bN1b4/3n1n1R/1q6/2Q1Qr2/Q3qrRP/N3NqB1 b - - 0 1 illegal: No possible last move
k1KB2qN/PQn5/3bB2B/1N1N1q1n/2bNbr1r/3Qr3/PnR5/1N1Q3R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 b5 Kf4 c5 Ke5 Kc7 h4 Kb7 f4 g5 d4 e6 h6 c4 a6+ Ka7 h7 b4 f6 c3 f7 b3 d6 c2 h5 b2 f5 g4 d5 g3 h6 g2 d7 Bg7+ Kd6 e5 f8N e4 f6 e3 f7 e2 Ne6 e1Q f8Q Bd4 Nf3 g1R Bc4 Rg7 Qe7 Qf2 Nc7 Nf6 Qe4 Qe8 d8Q Rf7 Qd7 Qd8 Qed3 Qg8 Bg5 Bc3 Nd4 c1N Bf4 Nh5 Ncb5+ Kb6 a7 Bb4+ Ke6 Ba6 d6 Qf3 Bd2 Rf4+ Qf7 Bc5 d7 Kb7 Bb3 Bd6 d8B+ Bc7 Be3 Qh3+ Ke7 Qf5 Be6 Be5 Rh2 Bc7 Rc2 Be5 N5a3 Bc4 Nab5 Na6 Kd7 Bd6 Qe7 Nc7 Bd2 Qg3 Qg7 Re8 h8N Qg2 Qe7 Qg8 h7 Rb8 Ng6 Ka8 h8N Rb7 Qc3 Nd3 Kc8 Rb6 Bc1 Ra6 Qh7 Ra4 Ne7 Rh4 Nd5 Rf4 N1a3 b1B Bd2 Rh4 Bh6 Nb2 Qcd3 Rf4 Rh2 Bc2 Rh1 Rh4 Rc1 Re7 Nb1 Rb4 Bd7 Re3 Be6 Rf4 Q3f1 Be4 Qfd3 Rb3 Rc2 Rh3 Q3f1 Rbe3 Qfd3 Rhh4 Ndc3 Na6 Qf7 Qgg5 Qc7 Qg8 Qb6 Nc7 Nd5 Qg3 Qa6 Qg8 Qb7#
2r1QBq1/P1Nb1nPB/1Qb4R/1q1Rq2R/1b2r2k/1Nr1B3/1K1B4/3BnN2 b - - 0 1 illegal: No possible last move, all moves rejected
7b/1N5B/1kn3K1/1br3b1/1R1q1Pr1/QBbN1NNb/1R2PRn1/B4rNQ b - - 0 1 illegal: No proof kernel
Q4NBn/BQ1q1Bn1/7Q/rPb1nR2/r1kBK3/R2NPn2/5B1R/r1n2b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 g5 d4 f5 h4 a5 b4 c5 b6 c4 b7 a4 h6 f4 h7 c3 d6+ Ke6 h5 Kd5 b5 c2 e6 a3 e7 a2 e8B Ra4 d7 Bg7 h6 Bf6 Nc3+ Kc4 d5 g4+ Ke4 g3 d6 g2 Bf7+ Kb4 Rh2 f3 Nh3 g1R Nf2 Rg2 Be3 c1N Qd5 Nc6 b8B Ne5 Qb7 Rg1 Bba7 Be7 Nd5+ Kc4 Nd3 f2 Bh3 f1N Bhe6 Qe8 d8R Qd7 Bf2 Ne3 Rf8 Nf5 e3 Ng7 Nc7+ Kc3+ Bc4 Rd1 Rb1 a1N Ne6 Nc2 Ra1 Nd4 Bb3 Ra5 Ra4 Ndf3 Ra3 Qd8 d7 Bc5 Qc6 Re1 Qb7 Ne7 Bg8 Qc7 d8Q N7g6 Rf5 Qd7 Bf7 Re8 h8Q Rf8 Qh7 Nh8 Qg6 Rg1 h7 Rh1 Bg8 Rf6 Qh6 Ra4+ Nd4 Rfa6 Qf8 R6a5 Bbf7+ Nb3 Qe8 Ra1 Qd8 Bb4 Ne6 Kc4 Qe7 Nc1 Qa8 Nhg6 h8B Bc5 Qb8 Nh5 Bf6 Nh8 Qef8 Ng7 Qb7 Neg6 Bb2 Nge5 Bd4 Ne2 Nc7+ Qe6 Rfh5 Nc1 Qe8 Bd7 Qea8 Qd5+ Kf4 Bf5 Ne6 Bh3 Rf5 Qd7 Ke4 Bf1 Nf8+
6rN/rb2nn2/1bB1kBQ1/RPQ3Br/PK6/3r1QQr/2b1RN2/4R1qQ b - - 0 1 illegal: No proof kernel
b2br3/1R1q1kBr/Q1BP3P/1rQN4/KQ4br/1nNR1r1Q/5RQN/4n3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 g5 b4 f5 d4 c5 Kd2 a5 Kc3 f4 Kb3 g4 e4 c4+ Ka4 f3 h6 c3 d6 f2 d7+ Kf7 d5 g3 h5 g2 e6+ Ke7 h7 c2 d6+ Kf6 b6 Nh6 b5 Kg7 e7 Rg8 e8Q Qg5 d8Q Qe7 b7 Qg5 b6 Na6 b8R Nb4 b7 Qg4 e5 Ra7 e6 Be7 Bb5 f1B Nf3 g1R Rh3 Rh1 Nh2 Nf5 Qc6 Re8 Qd2 Nd4 Nc3 Nd3 Qdg2 Ne1 Qdb6 Bd8 e7 Kf7 h8Q Qd7 Bb2 c1R Ra2 Rb1 Qa6 Nb3 Qc5 Bc4 h6 Bd5 Bc6 Rf1 Rd3 Rf3 Ba1 Be4 Rf2 Rb2 Ka3 a4 Qhe5 Bd5 Qeg3 Rb1 Kb4 a3 Q3h3 a2 Bb2 a1R Kb5 Rf8 e8N Ra4 Nf6 Rh4 Ba1 Be4 Ka4 Rg8 Nfd5 Re8 Ra8 Rb2 b8Q Rb7 Ra7 Rb5 Nd1 Re2 Bc3 Rh8 Rb7 Rh7 Nb4 Bd5 Bg7 Re8 Nc3 Qc7 Rf1 Bg4 Rf2 Be4 Nbd5 Qe7 Qc8 Qd7 Qb4 Rf6 Ra7 Ke6 Bb7 Nc1 Ne3 Rf3 Qcc5 Kf7 Ba8 Nb3 Rc7 Bb7 Ned5 Bc8 Bc6 Bb7 Qcd4 Ba8 Rb7 Nd2 Qe3 Nb3 Qec5
b2rk2r/1B1bQR2/Pn1KN2R/2R1Nr1n/3B2QN/b1N2Prr/8/5qNQ b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 b5 Ke3 c5 Kf4 g5+ Ke5 e6 d4 c4 h4 c3 a4 g4 h6 c2 h7 g3 h5 b4 h6 g2 d6 b3 d5 b2 a6 Bb7 a7 Na6 d7+ Ke7 f6+ Kf7 a5 Qe8 d8Q Bc8 d6 Ne7 d7 Nc5 a6 Nd5 Nc3 b1B Be3 c1R Bd4 Nf4 Ra5 Na4 Rc5 Nb6 Qg4 Be4 Rh4 Rb8 a8Q Nh5 Be2 Rd1 Bf3 Rd3 Qc7 Qe7 d8N+ Ke8 Rh3 Bc6 Qd6 B6d7 Bb7 Qf7 Rf3 Be7 Nc6 Bf8 Rf5 Rh3 f3 Qg6 Rf4 Qd3 Qa7 Qf1 Rf5 Rg8 h8R Be7 Rh7 Rh8 Rf7 Ra8 h7 Bf8 Rg5 Be7 Rg6 Bf8 Nge2 g1R Rh6 Rgg3 Ng1 Rb8 Qd5 Ra8 Qde4 Be7 Qb1 Bf8 Rb5 Ba3 Rc5 Rb8 Kd6 e5 Qd1 e4 Ne5 e3 Qc1 e2 Qa1 Rf8 h8N e1R Nhg6 Rh8 Nh4 Re4 Qb1 Rf4 Qc1 Qd3 Qf1 Rf5 Qg2 Qb1 Qh1 Qb5 Rg7 Qf1 f7+ Kd8 f8N Ke8 Rgh7 Bc6 Ne6 B8d7 Rf7 Rd8 Bc8 Ba8 Qb7 Ng7 Qbe4 Nh5 Bb7 Qc1 Qe3 Qb1 Qeg5 Qf1 Qe7#
q2rQBQQ/N1P1N3/1K1bNPr1/N2b2R1/3krb1B/1n2rRN1/Bn4r1/8 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 c4 g5 f4 a5 b4 a4 h4 a3 b6 a2 h6 e6 c6 g4 h7 g3 h5 g2 c7 Ne7 Kc5 e5 b5 d4 b7 e4 h6 d3 b6 e3 Qe1 d2 Rh5 d1R Nc3 e2 Nb5 Rd3 Na7 Ra3 Rg5 Rh3 Ba3 Nbc6 b8B Re3 b7 Rf3 Kb6 Qd1 c5 Na5 c6 Bd7 c8N Ng8 Ne7 Qd5 Qg3 e1B Bc4 Re3 Ne2 Bd2 Rf1 a1R Rf3 g1R Ba2 Rae1 Bbd6 Rc8 b8N Nb3 c7 Qa8 Nbc6 Rg2 Na5 Rd8 Bdc5 Re4 Bf2 Bc6 Qg4 Reg1 Bh4 Bd5 Ng3 Rge1 Qh5 R1e3 Qe8 Bc1 Nec6 Bd6 Bb4 Be5 Bf8 Bd6 Ne7 Rd7 Ng6 Rg7 Ne7 Rg6 Qc6 Kf7 f6 Ke6 f7 Nf6 f5+ Ke5 Qe8 Nh5 f6+ Kd4 Bb1 Nf4 Ba2 Rhg8 h8Q Nd3 h7 Nb2 Qg7 Rc3 h8Q Bcf4 Qgh7 R8g7 Q7g8 Rh7 Bh6 Rce3 f8N Rhg7 Nec8 Rd7 Ne7 Rd8 Ne6+ Kd3 Bf8 Kc3 Nc5 Kd4 Ne6+
b3n3/1rb2k1R/Q4n1n/3n4/rNBRP2B/QKb5/NRNP4/q2BRR1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 c5 b4 g5 h4 a5 d6 f5 h6 c4 d7+ Kf7 h5 a4 b6 f4 h7 a3 b7 g4 h6 g3 b5 f3 b6 c3 e6+ Ke7 Qb3 c2 Bc4 a2 Ba3+ Kf6 e7 c1B Kd1 g2 Kc2 f2 e8B f1R Nf3 g1N Bh5 Ra4 Nc3 Bb2 Ne1 Bd6 Bd1 Na6 b8N Bb7 Nc6 Nf3 Nb4 Ba8 b7 Nc7 b8R Nh2 Rb5 Qb8 d8R Qa7 Rb7 Rf4 Rf1 Ng4 Rb5 Be5 Rd4 Ne8 Rb1 Ba1 Bb2 Qg7 Qa3 Bc7 Kb3 Ke7 Rc1 Ng8f6 Nec2 Rf5 Rb8 Rb5 Rb1 Rb7 Rc1 Rg8 h8R Kf8 h7 Nh6 Bde2 Qg1 Rce1 Ke7 Bf3 Rg3 Bd1 Rh3 Rf8 Rh4 h8Q Rh1 Qh7+ Qg7 Qf5 Qg1 Rh8 Qg7 Qa5 Qg1 Rd5 Kf7 Qa6 Qd4 Ne2 Qg1 Nc1 Qa7 Be5 Bc3 Bg3 Qg1 Bh4 a1N+ Ka2 Qa7 Rd4+ Kg7 Ne3 Nc2 Kb3 Kg6 Nd5 Ne3 Na2 Ng2 Ne3 Nf4 Nc2 Nd5 Qc6 Kg7 Qa6 Kf7 Qa5 Nf5 Qb2 Nh6 Nc1 Bb6 Nbd3 Rb4+ Ka2 Bd8 Qa4 Qb6 Qba3 Ra7 Qa6 Ra4 Rb7+ Bc7 Rb8 Ba5 Rb7 Qb4 Rb6 Qc3 Rb1 Qa1+ Kb3 Bcb6 Rb2 Rb7 Na2 Bc3 Ndb4 Bc7 Rh7+
1qr4n/Qn1R1Q2/1K1R2r1/3b1Nnk/3PN2R/BPRb2bb/2RrB2Q/N7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 h5 Ke3 a5 Kd4 f5 g4 Kf7 e4 Kg6 b6 a4 b7 f4 e6 c6 d6 f3 Kc5 h4 d4 f2 e5 h3 e7 h2 e8N a3 e6 a2 b3 Qf6 e7 Rh7 d7 Qf5+ Kb6 c5 d8R c4 Ba3 c3 Be2 f1B Qc2 Rh8 Nf3 Bg7 Nf6 Nc6 b8Q Na5 e8R Nh6 Rd7 Rg8 Qa7 Nb7 Re3 Nf7 Ne4 Be5 Rd3 Bh3 Rc1 h1B Qd2 c2 Rc3 Bg3 Nh4+ Kh7 Rd6 Qe5 Nf5 Nh8 Qf4 Bd7 Qf2 Be6 Qh2 Bc4 Rd7+ Rg7 Rd6 Rc8 g6+ Kg8 g5 Bd3 Rd7 Qb8 Rd6 Kf8 Rd7+ Ke8 Rd6 Rg8 g7 B1g2 g6 Bf3 Rd1 c1R Rd2 Rd1 Rdc2 Rd2 Rd7 Rf8 g8Q Bh1 Qh7 Rg8 g7 B1g2 Be7 Kf7 Na3 Bf3 Rac1 a1N Rc6 Bh1 Rcd6 Bf3 Rc3 Nc2 Qh5+ Ng6 Qh7 Ne1 Nc2 Nh8 Na1 Bfg2 R1c2 Nf3 Qh4 Ng5 Qf4 Ne6 Qf2 Kg6 Bf8 Bf3 Qf1 Kh5 Be7 Rgf8 g8R Rf6 Rg4 Rg6 Bg5 Rd1 Bc1 Rd2 Ba3 Bg2 Ne7 Ng5 Qf7 Bf3 Nf5 Bg2 Nc5 Bc6 Ne4 Bd5 Rh4#
B4KQr/n1R1R1B1/N1rR1Nr1/P2b2Qn/b1nk3B/2br4/1P3RNR/q7 b - - 0 1 illegal: No proof kernel
1N5N/2qqQ2R/2q1B1R1/rPk1Rn1q/q2b3Q/n1B1R2B/K2RrPb1/6Q1 b - - 0 1 illegal: No possible last move
Rb1q1b1R/r1b1nN1Q/1QrP3R/3kb3/4b2Q/2PqB1N1/4n1RR/BB3K2 b - - 0 1 illegal: No proof kernel
Nb1B3k/r3BB2/RK2n1R1/4R3/bPbB4/BqqPQ1Nn/r1Q3b1/3rQ3 b - - 0 1 illegal: No proof kernel
1BBnb2N/1knqb1K1/6b1/2RRQR1N/P4r1r/3rNB2/2P3b1/1q1R2RQ b - - 0 1 illegal: No possible last move
Rn4Qk/3b3N/2BBQq2/2n1NbP1/2n1PbRn/1r1B1Qq1/5r2/2B1B1NK b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 c5 d4 f5 e4 Kf7 g4 Kg7 Kg2 a5 b4 h5 e6 c4 g6 f4 d6 h4 g5 c3 e7 c2 e8B a4 d5 a3 d7 a2 d6 Qe7 d8Q Qc7 d7 Ne7 b6 Nf5 b5 Bd6 b7 Ra3 b6 Rf8 Nd2 Rb3 Qf3 Kh8 Nc4 h3+ Kh2 Ne3 Ne5 Nc4 Qe7 Rf6 d8B Bd7 Bd3 Rf7 Qf2 f3 Qe6 Rf5 Qe3 f2 Qf3 f1B g7+ Kh7 g8N Kh8 Rb1 a1Q Nf6 Bg2 Nh7 Rf4 Qh5 Rf2 Qf3 Qc3 Ra1 Bf1+ Kg3 h2 Ra8 Bh3 Be7 Bf5 Bd8 Bc8 Bc6 Bd7 Be7 Qd8 Bf8 Bc7 Bb4 Qf6 Ba5 Qe1 Bb4 Qe3 Be1 Bd6 Ne2 Bc7 Rg1 Bd6 Rg2 h1N+ Kh2 Ng3 Ng1 Bc7 Ng4 Bf4 Ne5 Nh5+ Kh1 Ng7 Bb2 c1N Rg4 Rb4 Ba3 Nb3 Bc1 Nc5 Ra4 Nba6 b8B Rb3 Bd6 Nb8 b7 Rb4 Qg2 Qg3 Qf3 Rb3 Ra5 Bg6 Ra6 Nf5 Ra8 Nh4 Nf8 Nba6 b8Q Bf5 Qbe8 Nb8 Nh7+ Kg7 Q8f7+ Kh8 Qg8#
1Qn3qN/B1bB3r/n1B5/1b1n1Pn1/q1PR3k/r1QB1Q2/7N/1b1B1NRK b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 Kf2 a5 b4 d5 g4 e5 Kg2 h5 c6 e4 f6 Kg6 b6 e3 b5 h4 b7 e2 f5+ Kf7 g6+ Ke8 g7 Kf7 c7 a4 g5 a3 b6 d4 g6+ Ke8 f7+ Ke7 Nf3 Kf6 Nbd2 a2 Rg1 e1N+ Kh1 d3 Nh2 h3 Qf3 Ne7 g8B Bd7 c8B Rh7 g7 Na6 b8Q Bb5 Bd7 Nc8 b7 Bd6 f8N Bc7 Bb3 Ra7 Rb1 a1Q g8B Qa4 Bgd5 Qe8 Ng6 Qg8 c4 Ra8 Qf4 Nf3 B5c6 Ng5 Qf3 Ra7 Be2 Ra8 Ndf1 d2 Rb2 d1N Rd2 Nc3 Bbd1 Nd5 Rd4 Ra7 Nh8 Ra8 Qc3 Ra7 Nf3 h2 Bd3 Ra8 Bd2 Ra7 Be3 Ra8 Kg2 Ra7 Qa8 h1B+ Kf2 Bg2 b8Q Bh1 N3h2 Be4 B3e2 Bb1 Kg2 Kg7 Bd3 Kh6 Rg4 Kh5 Kh1 Nab4 Qab7 Ra5 Ba7 Na6 R4g2+ Kh4 Rd2 Nde7 Qb6 Nd5 Qe3 Qc2 Qf3 Ra3 Be4 Qb3 Rd4 Qa4 Bd3+
1QR5/1B2Bb2/R1QNbrNq/R1P1N1q1/bKnQ3b/7N/1N1nP3/n2rk3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 h4 Kf5 b4 Ke4 b6 g5 b7 f5 h6 a5 c6 d5 b5 a4 b6 f4 c7 f3 h7 f2 e6 d4+ Kc4 a3 e7 g4 e8R+ Be7 c3 d3 h5 a2 h6 d2 Qa4 Ke3 Na3 g3 Bg2 f1B Rh5 Kf2 Nh3+ Ke1 Ra5 d1B Bg5 Ra6 Qc6 Nd7 b8N Ngf6 b7 Nb6+ Kb5 Qd3+ c4 Qd6 c5 Ne4 Nd7 Nc4 b8Q Ned2 Ne5 Be6 c8N Bf7 Kb4 Bd8 Bf3 g2 Be7 g1Q Rf8 Qe6 Nd6 Qg5 Bg2 Rg8 h8Q Qef6 h7 Qfh6 Bd5 Rg6 Qg7 Rf6 h8N Ra7 Nhg6 Rd7 Bh1 Bg2 Rh8 Bgd5 Ra6 Bde6 Bd5 Bc7 Rc8 Bd8 Qh8 Rf5 Qf6 Rf1 Qf4 Rf3 Qd4 Rf6 Nb1 Ba4 Nc3+ Nb1 Nd1 Nbd2 Rc1 a1N Rc2 Bb3 Rca2 Bc2 R2a5 Ba4 Bh1 Rb7+ Kc3 Rb1 Nb2 Rd1 Kb4 Rf1 Qcb5 Qg3 Bf8 Bh4 Be7 Qgg5 Bb7 Rf6 Qc6
1b6/1b2kNN1/Qq2PRKn/1B2Q1Bn/1QN1Rb2/1r2PnrQ/Q1b5/1R5q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 a5 Ke3 f5 Kf4 c5 d4 a4 h4 c4 b4 c3 e6 a3 b6 c2 b7 a2 d6 g6 b5 Nf6 Kg5 f4 h6 f3 b6 f2 d7+ Ke7 h7 Ra5+ d5 Ra8 h5 Qc7 d8N Kd6 Na3 Bg7 Nf7+ Ke7 d6+ Kf8 h6 Nc6 b8Q Na7 b7 Nb5 Qd5 Rg8 h8R Nd4 h7 Nf5 d7 Ke7 Rh4 Ra5 Qg2 Rb5 Nh3 Qd8 Nf4 Rb3 Be3 c1B Nh5 Qa5 Qc7 Bd2 Rc1 a1Q b8Q Qb1 Qb5 Qb6 Qa6 Bb7 Qg4 Qe4 Rb1 Qh1 Qc2 Bc1 Qa2 Bd2 Qgc4 Bc1 Re4 Bd2 Kf4 g5+ Ke5 g4 Qb4+ Nd6 Kf4 g3 Kg5 g2 Bf4 g1N e3 Bc3 Bb5 f1B Nc4 Be5 Nd2 Bd3 Nc4 Rb8 Rg8 Bc2 h8Q Ra8 Qh7 Bh8 Kh6 Nf3 Rg5 Rg8 Rf5 Rg4 Bg5 Bf4 Kg6 Rg2 Ng3 Rg1 Qh3 Rg2 Nh5 Rg1 Ng7 Rg3 Ne8 Bg7 Rc5 Nf5 d8Q+ Kf8 Qd5 Nh5 Qd4 Bge5 Ng7 Bb8 Qf6 Nh6 Rf5+ Qc5 Qd4 Qd6 Rf6 Ke7 Qe5 Qc5 Qba5 Qb6 Qb4+
1NNB3b/1QRr3b/1BBrPNPK/5q2/nR1Qr3/5b1n/bRR3q1/R4k2 b - - 0 1 illegal: No possible last move
1Rq1rqbB/1nB3N1/2KPr1B1/BrbN2P1/1Q3Q1k/3Q2n1/2BN2R1/nr6 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 a5 f4 h5 d4 c5 g4 a4 b4 c4 g6+ Kf6 d6 a3 Kd5 c3 g7 h4 b6 c2 b7 h3 b5 a2 b6 h2 d7 e4 Bd3 e3 Bb2 c1N Ne2 Ra4 Bc2 Nd3 Rg1 h1R Nd2 Ne1 Nc3 e2 Rg2 Ba3 Rb1 Qf8 d8B+ Kf7 f6 a1R f5 Nc6 b8B Nf3 b7 e1Q Bbc7 Qee8 b8Q R1h5 Qb4 Ne1 Qe2 Ra7 Qd3 Ra6 Ba5 Bb7 Bdc7 Nge7+ Kc5 Qb8 d5 Nd8 Kb5 Re6 d6 Rg8 Nd5 Qc8 Be5 Rgh8 Rb2 Rb1 g8B+ Ke8 Bh7 Kf7 Rb3 Bc6+ Kb6 Nb7 Ba1 Ba4 Rb2 Bb3 Bg6+ Kg8 f7+ Kg7 f6+ Kh6 Kb5 Nf5 Kc6 Bc4 Rb3 Kg5 Bd4 Ng3 Bc3 Qg7 f8Q Kh4 f7 Qf6 Qh6 Rhe8 Qf4 Qe7 Bh8 Qf8 Nc3 Rb5 Nd5 Qg7 f8N Qh6 Nh7 Qf8 Rb2 Ba2 Nhf6 Bb3 Nh5 Bc4 Bb3 Nc2 Ng7 Na1 Bc2 Ba2 Qbc4 Bc5 Qb4 Bb3 Qe2 Re3 Nb6 Bg8 Qa4 Rb4 Nd5 R3e6 Qa3 Bd4 Qa6 Nc5 Q6d3 Rb7 Rb6 Bf2 Qab4 Rb8 Ra6 Rb5 Ra8 Nb7 Rb8 Bc5 g5+
1Rq1nN2/6r1/BP1n2P1/1Qn1kbB1/1N2QRQ1/4n1Nb/3bBB1K/2r2q1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 a5 e4 h5 d4 c5 b4 f5 d6 Ke6 b6 a4 d5+ Kf7 b7 c4 b5 h4+ Kh2 c3 g4 h3 d7 c2 g6+ Kg7 g5 f4 e6 f3 e5 a3 e7 f2 e8Q a2 d6 Nf6 e6 Ra7 e7 Rh4 Be2 f1Q Na3 Qc7 d8N Re4 Be3 c1N Nc2 Qc4 d7 Qd3 Nb4 Qc3 Bf2 Nd3 Rb1 Na6 b8Q a1N Rb3 Nac5 Ne6+ Kh8 d8B Nc2 Qb7 Rc4 Qe4 Ne3 g7+ Kg8 b6 Nb7 Qb5 Ndc5 e8B Nd6 Bc6 Kf7 Rb2 Be7 Nf8 Nfe8 g6+ Kf6 g8B Bf5 Bb7 Qc2 Ba6 Rd7 Bd5 Rc3 Qg4 Ke5 Qe1 Bg5 Qb1 Bh6 Bg5 Qcc1 Rd2 Rg7 Rd4 Rc4 Rf4 Qc3 Bd3 Qcc1 Ne2 Rc3 Kg3 h2 Bg2 Qc2 Kh3 Qcc1 Ng3 Qc2 Be2 Rc4 Rg1 h1B Kh2 Qc3 Be4 Bg2 Rh1 Bh3 Qc2 Qb3 Qb1 Rc1 Q1d3 Qe6 Beb7 Qd1 Re1 Qc8 Bh1 Qd2 Rd1 Qe1 Qc2 Qf1 Qb1 Ndc4 Rd8 Ncd6 Qc2 Qd7 Rb8 Qc8 Qcd3 Rf7 Bd8 Nd1 Rc4 Bd2 Bg5 Rg7 Rf4 Ne3 Qe4+
Q7/1rQ2N2/BP1N1P1b/3N2n1/1bQ1nqr1/R2RqbB1/N4n2/kN1R1K1b b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kf7 g4 e5 b4 a5 f4 h5 d6 c5 d5 c4 d7 a4 g6+ Kf6 d6 h4 g7 c3 b6 h3 b7 e4 b5 a3 b6 h2 Qc2 e3 Ba6 a2 Ne2 Nc6 b8R Nb4 Kf1 Qe8 d8N Ra7 d7 Rh4 Nf7 Bb7 d8N Bf3 Nb7 Nd3 Nbd6 Nf2 Rd8 Rb7 Bd2 Nh6 g8Q Qe6 Rg1 h1B Be1 Qb3 Qc1 c2 Nec3 Ne4 Bg3 e2+ Ke1 Ng5 Kf2 e1B+ Kf1 Bg7 Rd7 Qb4 Qb8 Ng8 Qc7 Bh6 Rd8 Kg7 Qc4 Nf6 Qc7 Nfe4 f6+ Kg6 Rd7 Qd4 Qc4 Qe3 Rd8 Nh3 g5 Rg4 f5+ Kh5 g6 Nhg5 Nd5 Bb4 g7 Nf2 g8N Nfe4 Qd1 c1N Qdc2 Nd3 Nge7 Ndf2 Ndc3 Qf4 Ned5 Qe3 Nd2 Qf4 Rd1 a1Q Ndb1 Qa3 Na2 Qae3 Qc7 Qe5 Q2c4 Q5f4 Bh2 Kh4 Rg3 Kh5 Ne5 Kh4 f7 Kh5 f8Q Kh4 f6 Kh5 Nef7 Kg6 Nc8 Kf5 Ncd6+ Ke6 Nh8 Ke5 Rd7 Qc3 Qa8 Qcd2 Qb5 Kd4 Nhf7 Qe3 Rh3 Qf4 Bg3 Qe3 Nc4 Kd3 Qbc6 Kc2 Ncd6+ Kb2 Qc4 Ka1 Re7 Nc5 Re5 Qf4 Re3 Nce4 Ra3 Qde3 Rh2 Nfh3 Rhd2 Nhf2 Rdd3
rB2N3/1R6/Pr2qn2/2b1Q2R/k1b1NRPn/4R3/qBq1B2Q/R1bbQK2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 a4 c5 f4 b5 g4 e5 d6 Kc6 f6 h5 d5+ Kb7 g6 Ka6 g7 e4 f7 e3 d7 e2 d6 c4 f5 b4 f6 h4 Nf3 h3 Nh4 b3 Nd2 c3 Nf5 c2 Bb2 c1B Ne4 Be7 f8Q h2 f7 Rh3 Qe8 Nh6 f8R Nc6 g8Q Bb7 Qh7 Nd4 Ng7 Rf3 Rf4 Qc7 d8B Ndf5 d7 Bc5 Qe5 Bd5 Ne8 Nh4 Be7 Rf2 d8R Bc4 Rd3 Ng8 Bd6 Nf6 Re3 Qf7 Bb8 Rf3 Rg1 h1B Rb1 Bg2 Rh1 Rg3 Kf2 e1Q+ Kg1 Qe2 Qe1 Qc2 Be2 Bf3+ Kf1 Qe6 Rh3 Ng6 Rh5 Nh4 Bd3 Bd1 Be2 Rg2 Qh6 Kb7 a6+ Kc6 a5 Kb5 a7 Ka4 Bd3 Rd2 Be2 Rd6 a6 Rb6 Ra1+ Kb5 Bd4 Qa2 Bb2 Ka4 Rg5 Ng2 Bd4 b2 Qh2 b1Q Rh5 Qc2 Bb2 Nh4 Bc7 Rc8 a8R Qf5 Ra7 Ra8 Rb7 Qe6 Bb8
1Nqb2B1/q1n1PQbN/nr1Q1Q1b/q6Q/6r1/Nb1K3Q/1R3PRB/k6R b - - 0 1 illegal: No proof kernel
N4qrk/Q1QP1BBN/3r1N1N/4n3/r5NR/6br/n2PRR2/BqbbK3 b - - 0 1 illegal: No possible last move
2R1K3/3PB2r/N1QQ1qQ1/n2Nn2b/1r1PQ1qQ/N4n1B/nBR5/b4k1q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 h4 g5 d4+ Ke4 f4 e5+ d6 a5 b4 a4 f6 g4 b6 a3 f7 c6 b5 a2 f5 g3 f6 g2 b7 Qe8 b6 Ra7 h6 Bh3 h7 Ra3 h5 Bg4 h6 Rb3 Rh2 Qd7 Ne2 Kf3 Qc2 Kf2 Qe4 Bf3 Na3 Rb4 Nf4 Qg4 Bb2 Ne7 Rc1 a1Q Nd5 Ng6 Rc3 Be7 f8B Qh4 f7 Bh5 Rc4 Qf6 Rc1 Bd8 Be7 Qb1 f8Q Qa1 Rh4 g1Q d7 Qg4 Bh3 Bc7 Rc4 Qh1 Qf7 Bd8 Qe6 Kg1 Kd6 c5 Rc2 Nc6 b8N c4 b7 c3 Rg2+ Kf1 Na6 c2 b8Q c1N Qa8 Na5 Qc6 Qfg5 Qg8 Na2 Qf7+ Qf6+ Qe6 Rf8 h8Q Rf7 Qg8 Rh7 Qf7 Bb6 Qg8 Bc5+ Kc7 Bd6+ Kd8 Bc7+ Ke8 Bd6 Qec2 e4 Qgf7 e3 Qce4 Bg3 Qed6 e2 Qg8 Ne5+ Qgg6 Qgf3 Rg4 Be1 R4g3 Q3f4 Rc3 Qg4 Rc5 Bc3 Rc4 Rf7 h7 e1N h8Q N1f3 Qhh6 Rg7 Qg5 Rh7 Qh4 Ng1 Qa4 Ngf3 Rc8 Qgf5 Qac6 Qg4 Bc1 Ba1 Bb2 Rc4 Kd8 Ra4 Ke8 Rb4 Rc2+
7R/1n1Pb3/q4QnB/rk3bQP/n1N2qB1/n1b2rB1/BR4NQ/K3B1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 d4 g5 Kd2 f5 Kc3 a5 b4 c5 Kb2 a4 e4 g4 b6 g3 h6 g2 e6+ Kd6 b7 c4 h7 f4 h5 f3 e7 f2 e8Q Nd7 b8Q+ Qc7 b5 Ra7 b6 Ne5 b7 Ra6 Bh6 Be7 Ne2 g1Q Nf4 Qg2 Qf3 Bf8 Na3 Nd7 Qd8 Ra5 Ra2 c3+ Ka1 c2 Bc4 c1N Rb2 f1N Rg1 Nd3 Qg5 Ne3 Ba2 Qe2 Ng2 N7c5 e5+ Kd7 d6 Be7 d5 Nc4 Qff6 Qf1+ Ne1 Qf4 Ng2 Qb6 Bf8 Qa6 Bh6 Ne3 Nc4 a3 Rb4 Na4 Rb2 Ndc5 e6+ Ke8 d7+ Kd8 Qa8 Kc7 d6+ Kc6 b8B+ Nb7 d8B Bd7 Bb6 Bc8 B8c7 Bd7 Qb8 Bc8 Nd2 Nc4 Bf2 Bd7 Be1 Bc8 Bb3 a2 Bd1 Na3 Bg4 Bf8 e7 Bf5 e8B+ Kc5 d7 Ne7 Qfg7 Ng6 Q7f6 Be7 Bf7 Rf8 Bb3 Kb5 h8R Rc8 Bd6 Rc3 Nc4 Rf3 Be5 Qe3 B5g3 Qf4 Qbe5+ Bc5 Qe2 Bb4 Nge3 Be7 Qh2 Nc3 Ng2 Na4 Rf2 Nb6 Kb2 a1B+ Ka2 Bc3 Rb2 Na4 Ka1 Bd6 Ba2+ Bdb4 Bb3 Be7 Ba2+
2nQQ1n1/R1P1R2b/1b3nQr/7N/2BB1qq1/Q1bR2NP/1r2n1Q1/K5kN b - - 0 1 illegal: No possible last move
1q6/1PB1Bq1b/KNBn1B2/2qB3b/Qr1P2Q1/1n2k1Q1/3N1rRb/1R4Nq b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 d4 h5 g4 a5 b4 e5 f6 c5 d6 h4 f5 a4 g6 h3 d7 h2 g7 a3 f7 a2 f6 Na6 b6 Rh5 Kb5 c4 b7 c3 b8Q c2 g5 Ne7 g8B Nc5 g6 Ra4 g7 Nb3 Nd2+ Ke3 Rb1 a1Q Bg2 Nf5 Bc6 Bd6 f8B e4 f7 Qa2 Be7 Rh3 f8N Rf3 Be6 Rf2 g8Q Bb7 Qa7 Qb8 d8B Bg3 Kb6 Nd6 b5 Rb4 Bed5 Be5 Ba3 c1Q Qdg4 Ba8+ Ka6 Qc5 b6 Bf4 Nh3 Bg3 Rhf1 h1B Nd7 Bf3 Bf6 Bh2 Rg1 Bd1 Rg2 Bc2 Q4g6 Bd1 Ng1 Bh5 Bb5 Bc6 Bc7 Ba8 Qg4 Bc6 Bdc4 Bd5 Q8g7 Bg8 b7 Bh7 Qa8 Nc1 Bg8 Qf7 Bc6 Nb3 Qa7 Kd3 Nb6 e3 Q7g5 e2 Q5f4 e1Q Qfg3+ Qe3 Qa8 Qf3 Qa7 Ke3 Qa8 Qg6 Bgd5 Qf7 Qd7 Rb5 Qdg4 Ne8 Bb4 Qc3 Bbe7 Rb4 Qa7 Nc5+ Ka5 Nd6 Qa6 Qc2 Qb5 Qc1 Qa4 Nb3+ Ka6 Qc5 Q3h4 Be5 Rh2 Qh1 Rg2 Bh2 Qhg3+
Nn3Bnk/1P5Q/1Q3B1B/1bBB3P/r2Q1n2/2bqrb2/q1R2KR1/1b2N1N1 b - - 0 1 illegal: No possible last move
2r1r2n/1PqP4/K1nNRR1n/4RR1q/1N1B1kb1/b3R2Q/Q3Q1B1/3nr1B1 b - - 0 1 illegal: No possible last move, all moves rejected
4R1B1/PP3R1k/Rr2q2q/2Kn2rb/Q1Bn3N/3R1N1R/1Bb3N1/bb3nQ1 b - - 0 1 illegal: No possible last move, all moves rejected
B2b3q/2Rb2rn/1Q2B2K/1Q1r1b2/2PB2Bk/bR1Q2B1/1Pb1N3/2N1bRn1 b - - 0 1 illegal: No proof kernel
b3Qq1N/2BB1rb1/1NRN2R1/Nk1n2nn/1n4r1/r1P3QQ/rP5K/2B4N b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 e5 Kf2 d5 Kg2 Kd7 h4 g5 h6 a5 c3 a4 c6+ Kd6 h5 Kc5 c7 d4 b6 e4 f6 e3 f7 d3 b7 a3 h7 d2 h6 a2 f5 g4 f6 g3 Bb5 e2 Qe1 d1N Bd7 Qe8 Na3 Bg7 f8N Ne7 f7 Kb6 Nh3 Nf2 Rg1 Nbc6 b8B Nd3 Nc4+ Kb5 Nf2 Nd5 Na5 Bb7 c8N N3f4+ Kh1 g2+ Kh2 Qe7 Bc7 Nh5 Nh1 Ra7 Qf2 e1N Qg3 Rg8 h8N Ba8 h7 Nf3+ Kh3 Ng5+ Kh2 Ka6 Nd6 Ncb4 Be6 Qd8 Nd7 Rf8 Nb6 Qf6 Bd7 Qe7 Re1 g1R Re6 Qd8 Rb1 a1R Rg6 Ra3 Ra1 Rf1 Ra2 Rg8 f8Q Rf7 Qe7 Qf8 Qee3 Rb3 Ra4 Ra3 Qe8 Nc2 Rc4 Ncb4 Rc6 Ra2 Ne4 Kb5 Nb3 R7a4 Na5 R4a3 Nd6+ Ka6 Rf6 Ne6 Bd2 Nhf4 Rh6 Bd4 Bc1 Rg4 Ng6 Bg7 h8Q Ng5 Qh7 Rf6 Nh8 Rf7 Ndc4 Kb5 Rhg6 Rb3 Qhh4 Rba3 Qhh3 Nh5 Nd6+
N7/r3r3/1N1BPn1R/2QR3n/2nbB2r/3R1Qq1/BPNR1rb1/nk2K1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 h4 a5 e4 f5 e6 Kf6 b6 g5 e7 c5 e8B f4 d6 c4 h6 c3 e5+ Kf5 d5 Ke4 h5 f3 b7 c2 d7 a4 e6 a3 h7 g4 d6 a2 h6 g3 Ne2 g2 Nec3+ Ke5 Rh2 g1R Na4 Ke4 Bf4 c1N Rd2 Rg2 Nb6 Ra7 Bc4 Rg5 Na3 Nb3 Nc2 Nf6 Na8 Qc7 d8R Nh5 d7 Bg7 Bd6 Na5 Bb3 Nc4 Bg6+ Rf5 Rb1 a1N Qc1 Re8 h8R Re7 h7 Bf6 Rd5 Bd4 Qg5 Kd3 Qg4 Na6 b8N Nc5 Qh3 Ne4 Rd1+ Ned2 Rhg8 Ba6 h8R Bb7 Rh6 Bc6 Bh7 Bb7 Rgg6 Rf4 Rg2+ Re4+ Re2 Bc6 Rg8 Bb7 d8Q Bc6 Rgg6 Rh4 Nd7 Qb8 Qa5 Bb7 Rc1 Ne4 Ndb6 Nef6 Qc5 Qg8 Rg1+ Qg6 Qh1 f2+ Kf1 Bc6 Re3+ Kd2 Qf3 Qg3 Be4 Bb7 Rce1 Bc6 R1e2+ Kc1 Rd3 Kb1 Red2 Bb7 Ke2+ f1R Rg2 Rf2+ Ke1 Bc6 Rg1 Be8 Rc3 Bg6 Re3 Bf5 Rc3 Bh3 Rcd3 Bg2 Ba2+
2Nk1B1r/3P3B/2N2q2/bQ1N1r1b/1r3RQR/r1b5/QNP3K1/1nbn2NR b - - 0 1 illegal: No proof kernel
qQ1QNr2/NrPbK1n1/1N3r2/1B1Q4/1B3QR1/k4n2/1RBQ1nP1/bnr5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 h5 Ke3 d5 Kd4 Kd7 Ke5 a5 c4 h4 f4 a4 b4 e6 c6+ Ke7 f6+ Kf7 c5 d4 f5 a3 b6 d3 c7 h3 g6+ Ke8 b7 Kd7 b5 a2 b6 Kc6 f7 Kb5 f6 Kb4 g7 h2 c6 d2 Na3 Qd7 Nb5 Ne7 g8B Ra6 Nd6 Ra5+ Bb5 Qe8 Ne2 Bg7 f8Q Nf5 Bh7 Ra6 Qg8 Bd7 c8N Qf8 c7 Qd8 Rf1 h1N Nd4 Nf2 Ne8 Ra7 Qe2 d1N Bd2+ Ka3 Rb1 a1R Rb2 Rc1 Nc6 Nc3 Rd1 Ra6 N6a7 Nb1 Qf7 Rf8 Qg8 Nd4 Kd6 e5 f7 Ne6 Bc2 Nc6 b8Q e4 b7 e3 Nb6 Ncd4 Qc8 Bf6 b8Q Nf3 Be1 Ng7 Qd2 e2 Qcb7 Bc3 Qbd5 Qc8 Ke7 Qb7 Qh8 Qa8 Qh4 Bd4 Qhf4 Be5 Na4 Rf6 Nb6 Rh8 f8Q Rg8 Rb4 Ba1 Rb2 Rh8 Nd6 Rg8 Qfd8 Rgf8 Ne8 Nh1 Bf2 e1R+ Be3 Rg1 Bd4 Nf2 Bc3 Rh1 Ba5 Rh4 Rh1 Rhh6 Rh4 Rhg6 Rg4 Rh6 Nbc8 Rb6 Bc3 Rb7 Nb6 Rhf6 Bb4+
B1r1r3/K2N1nB1/4Q1QN/bR1B2q1/1p1BR1P1/r2b1b2/4P2B/1k2QnNn b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Ke3 b5 Kd4 h5 a4 f5 g4 c6 e6+ Kd6 g6 f4 a6 h4 e7 h3 e8Q h2 g7 f3 a5 f2 a7 Qd7 a6 Ne7 g8N Rh6 Qe1 Rh8 Nh6 Qf5 Bb2 Qe6 Qg6 Rg8 Bg2 f1B Ra4 Nd7 Nc3 Ne5 d3 Qf6 Ne4+ Kd7 Kc5 Nf5+ Kb6 c5+ d6 Ke6 d7 c4 d8B c3 d4 c2 Be7 Kd5+ Bd6 c1R Rb4 Rc3 Nc5+ Rf3 Ra4 Qg5 Nd7 Nf7 Ba1 Ke4 d5+ Ke3 Bg7 Ng3 Bde5 Ba3 d6 Bb4 Qe6 Re8 Bd4+ Kf4 Qg6 Ra3 Bd5 Bg2 Qe6 Bb7 Qg6 Rad8 a8B Bf3 a7 Ba6 Nb8 Qe5 d7 Nf5 Bdb7 Qe4 Bdf6 Ke3 Qc1+ Bd2 Nh3 Rc8 d8B Rh8 Bc7 Ra2 Nd7 Qf4 Qc4 Bc6 Rb1 h1N Ng1 Qg5 Bh2 Nfg3 Qe6+ Be4 Bc3 Rhe8 Bd5 Nf1 Bac6 Ra1 Bce5 Bf3 a8Q Bc3 Qb8 Kd2 Ba8 Ra3 Ka7 Ba5 Re4 Kc2 Rbb4 Kc1 Bd4 Kc2 Qg3 Kc1 Rc4+ Kb1 Rc5 b4 Qf2 Bc4 Rb5 Bd3 Qe1+
QRnB3K/B3Q2N/rq1rb3/pn1b2bP/4rQ2/NB4B1/3NP2R/2B1k1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h6 Ke7 Kf2 g5 Ke3 c5 Ke4 a5 b4 c4 d4 g4 h4 c3 h7 g3 b6 f6 h5 g2 b5 c2 b7 Qc7 b6 Nd7 Kf5 Bh6 Kg6 f5 b8B f4 e6 Kd6 b7 f3 e7 f2 e8N+ Ke7 d6+ Ke6 d5+ Ke5 Be3 Ke4 Rh2 c1N Qd2 Ngf6 Nf3 g1R+ Bg2 f1B Na3 Ra6 Rb1 Nd3 Bba7 Nb6 b8B Nc5 d7 Ne6 d8Q Ng4 d6 Nf2 d7 Nh3 Rb5 Rf8 h8Q Rf6+ Kh7 Bg5 Qe7 Rf4 Bh1 Bg2 Rb1 Rd1 Nf6+ Kf5 Qdd6 Nd4 Bc1 Ng1 Qhe8 Qc6 Kh8 Qb7 Nh7 Kg4 Q8f8 Kg3 Rb5 Rd3 Nd2 Kf2 Qc6 Qc7 d8B Be6 Qa8 Ke1 Qff6 Bc6 Rf2 Nc8 Bd5 Re4 Bb3 Qd6 Rb7 Nb5 Qff8 Qc5 Bg3 Qb6 Qf4 Rd6 Rb8 Bcd5 Rh2+
1b2Q2R/5nbQ/2B2B1P/Rnr1N3/2P1NNRr/1Q1pkN2/K2N2r1/1nqb4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kb3 Ke5 h4 Ke4 f4 g5 c4 a5 b6 d5 c6 e5 f6 d4 f5 a4+ Ka2 d3 b4 g4 h6 a3 c7 g3 b7 g2 h5 Qd5 f7 Ra4 f6 Ne7 h7 Ra8 b5 Bd7 c8N Nbc6 b8N Nf5 b6 Ncd4 b7 Nh6 Bb2 Nb5 Qb3 Bd6 f8Q Ra5 f7 Bg4 Rh4 Ke3 Qg8 e4 f8N Bd1 Nf3 g1R Nbd7 Nf7 b8Q Qg5 Ne6 Rg2 Rg4 Bh2 Qb7 Bb8 Nbd2 Qh6 Bf6 Qf4 Kb1 a2+ Kb2 Qg5 Qe8 Qh6 Nd6 Qf4 Rc1 a1B+ Kb1 Qg5 Nf4 Qh6 Rc2 Bc3 Ra2 Bb2 Bg5 Bg7 Bf6 Kf2 Be2 Nc3+ Ka1 e3 Ng6 Ng5 Nb1 Rc5 Nh2 Nb5 Ra5 Bf8 Bf3 e2 Ka2 e1N Bc6 Nc2 Nde5 Nca3 Ne4+ Ke2 Qg7 Nf7 Nhf3 Qc1 Nbd2 Nb1 Nf4+ Ke3 Qg6 Rg8 Qf5 Rg6 h8R Rh6 Qh7 Bg7 Rg5 Rg6 Rg3 Rg4 h6 Rh4 Rg4
N7/Q1n1nK2/1r4P1/k2B1Rbr/2RN1b2/1r1bnPQQ/1BpR3B/1q1R1R2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 h5 Kc4 a5 b4 e5 d4 c5 g4 Kc7 f6 Kb6 d6 h4 Kd5 e4 g6 h3 d7 e3 Ke6 e2 d5 e1B f3 c4 d6 h2 g7 c3 g5 a4 f7 a3 Bb2 c2 Ne2 a2 Na3 Bf2 Nc4+ Ka7 b6+ Ka6 b7 Nh6 g8Q Be7 f8R Bd4 b5+ Ka7 b6+ Ka6 Rf5 Bdf6 Nd4 Ng4 Kf7 Ne3 g6 Rh4 Qe1 Rh5 Qg3 Bg5 Qh8 Bf4 Rd1 a1R Be2 Bh4 Rhf1 h1N Rd2 Qg5 d8R Ra3 d7 Rb3 Rg8 Qg4 d8R Bhg5 Rge8 Bd7 Re4 Bb5 Qh7 Qh4 Qh3 Ng3 Rdd5 Nc6 b8B Ne7 b7 Qg4 Rd7 N7d5 Nb6 Ka5 Bc4 Ra6 Na8 Nc7 Bd5 Rb6 Qg7 Bd3 Rd8 Nb5 Bd6 Nc7 b8Q Ne2 Qh7 Qg1 Qg3 Nc3 Qa7+ Ra6 Ne2 Qh1 Rc4 Qg1 Nd4 Qh1 Be6+ Nc3d5 Be5 Ne7 Bd5 Rh3 Qh5 Qg1 Qhg4 Rh5 Q4h3 Qh1 Rff2 Qd1 Rf1 Qb1 Re8 Ng8 Re2 Ng4 Qf2 Be3 Bh2 Bef4 R8e5 Ne7 Qfg3 Bc1 Ref2 Bcf4 Ree1 Ne3 Rfe2 Be4 Rd2 Bd3 Qb7 Rc6 Red1 Rcb6 Qa7+
1q3B1N/2k2bB1/Q2Pb1Bp/2B1brrn/2B2RR1/Q2NQ2K/1nP1nN2/2r5 b - - 0 1 illegal: No possible last move, all moves rejected
2b2N2/1rn4k/P2r2n1/b1B5/QQRBpRBr/P3BbNQ/1K2nR2/5Bq1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kf7 d4 Kg7 Kd2 c5 Kc3 h5 g4 b5 f6+ Kh7 d6 e5 d7 c4 g6+ Kh6 g7 h4 f5+ Kh7 f7 b4+ Kb2 b3 a3 e4 g5 h3 a6 h2 f6 Nh6 g8B+ Kg6 d5 Qe8 d8Q Bh3 d6 Be6 d7 Bd5 Ra2 Be7 f8B Nf5 f7 Ra7 Qa5 Ne3 d8B Qd7 Ne2 Be6 Ng3 Nc6 Nc3 Rh4 Bb6 Rb7 Nce2 Nd5 Bd4 Ne5 Qb4 Bd8 Bce3 Ba5 Bfc5 Nc7 f8R Qg7 Rf4 Bc8 Be6 Kh7 Bg4 Ng6 Rg1 h1B Rg2 Rh5 Rgf2 Rh4 Ra1 Rb6 Rc1 Bf3 Qc2 Qg8 Qcc3 Rd6 Qa4 Rh1 Qcb4 c3+ Kb1 c2+ Kb2 Ne5 g6+ Kh8 g7+ Kh7 Bc3 Ng6 Nd4 Rh3 Ne6 Rh4 Rd1 c1N Rd4 Ne2 Rc4 Qd8 Bc3d4 Qg5 Kb1 b2 g8Q+ Kh6 Kc2 b1R Nf8 Rb3 Qe6 Rb1 Qe1 Rb8 Qeb4 Rb7 Bh5 Qg4 Kb2 Qg5 Qh3 Qg4 Nh1 Qg3 Bg4 Qg1 Rf6+ Kg7 Ng3 Kh8 Rf4+ Kg8 Ne6 Kh7 Nf8+
N4n2/NpK2N1n/1P4RB/1N2P3/Rb1Q1rBR/B7/3bNqk1/rrb1Q1n1 b - - 0 1 illegal: No proof kernel
Bb6/k2BB3/2qq2bR/B1r1N3/3BrnQ1/2pP2NP/1rN1b3/R1KnQR2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 e4 c5 d3 Kc7 Kd2 Kb6 h6 a5 h3 g5 e6 f5 e5 f4 d6 f3 d7 c4 h7 c3+ Kc2 f2 e7 g4 e8B a4 e6 g3 e7 a3 Ne2 g2 Ng3 g1R Qg4 a2 Ba3 Nh6 Bg2 f1B Kc1 Ra5 Ba8 Rg2 Rg1 Qc7 d8B Be2 Rf1 Na6 Bd7 Nc5 e8Q Ka7 Qe7 Rg8 h8B Qc6 Bd4 Nf5 Qe6 Ra4 Ba5 Rg5 Qe8 Ne3 b6+ Ka6 b7 Bd6 b8R Ka7 b5 Nd1 Rb6 Bb8 Qee4 Ne6 Be7 Nf4 Na3 Rc5 Nc2 Qd6 Qee6 Bb7 Qe3 Be4 Rc6 Bg6 b6+ Ka6 b7+ Ka7 Qd2 Rc4 Qe1 Rf2 Rb1 a1Q Rb6 Qa4 Ra1 Bc7 b8N Qac6 Be6 Rb4 Nd7 Bb8 Ne5 Rb2 Bc8 Rf3 Bd7 Re3 Qd2 Re4 Qe1 Qcd5 Rc6 Q5e6 Rc8 Qed5 Rh8 Q5c6 Rh6
Q1QK2R1/2N1Qk2/NqQ1bB1Q/1q6/3R2pR/1nbnBq1B/P4n1P/2r3r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 e5 Ke3 c5 Ke4 g5 f4 b5 d4 b4 h6 b3 f6 b2 a6 c4 f5 c3 h7 c2 a7 Be6 d6 Ne7 f7+ Kd7 f6 Nd5 Na3 b1Q Ne2 Qc7 Nb5 Qb7 Rg1 Nc7+ d5 Qa6 Ng3 Qb6 Be3 c1Q+ Qc2 Bh6 f8Q Qb7 f7 Qbb2 Bh3 Qf1 Rd1 Nca6 Nc7 Nc6 Rd4 Rg8 h8R Rc8 a8Q Bg7 Rh4 Q7b5 Qc1 Bf6 Qh6 Ncb4 f8Q Nd3 Qf7+ Kd8 d7 Qbf2 Qfg6 Ke7 Qgh7+ Rg7 d8Q+ Kf7 d6 Qfb2 d7 Nf2+ Kf3 Q2b3 Qcc6 Nc5 Ne4 Qb6 Qdh8 Q3b5 d8B Nb3 Nc5 e4+ Kg3 Qfd3 N5a6 Qc3 Rd6 Bd4 Bf6 Qcd3 Rd8 Bc3 Rd1 Qf1 R1d4 Qd1 Rg8 Qh1 Bc1 e3 Qhe4 e2 Be3 e1N Qe5 g4 Kf4 Rg6 Qec5 Qf3+ Ke5 Ned3+ Kd6 Rg5 Qa3 Rc5 Qb4 Bb2 Qa3 Rc1 Qc5 Bc3 Qa3 Bc4 Kd7 Re8 Qb4 Re4 Kd8 Be6 Bf4 Ree1 Be3 Rg1 Qbc5 Q6a5 Qca7 Qab4 Qc8 Q4c5 Qaa8 Qa7 Qg5 Qab6 Qhh6 Nb4 Qgc5 Nbd3 Qe7+
2BK4/1RR1nbq1/N1k1B1BB/8/n1B1P3/rpQPb2Q/1q2r3/N1r1RN1n b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 f5 Kf4 b5 e4 c5 h4 c4 a4 c3 a6 g6 a5 b4 a7 b3 a6 c2 h6 Qe8 Kg5 f4 e6+ Kc7 d6+ Kb6 e7 f3 h7 f2 h5 Qd7 e8B Ne7 Kf6 g5 h6 g4 Qe1 g3 Ne2 g2 Bg6 g1N Ng3 Qb5 d7 Qc4 d8N Nbc6 Nb7 Qe2 Nc5 Kc7 Na3 Qg4 Bc4 Be6 d3 Qh3 Nf1 Nb8 Qc3 Rg8 h8Q Nf5 h7 Bf7 Bh6 c1R Nc2 Qg2 Rh5 Ne3 Rd5 Nf5 Rd7+ Kc6 Rb1 Qg3 Na1 Ne7 Be6 Ne2 Bc4 Rc2 Re1 Rc1 Rb7 Nc8 Be6 Nb6 Bc8 Bg7+ Ke7 Bd4 Be6 Rg7 Kd8 Be3 Bc4 Nc8 Be6 Nd7 Bc4 Ndb6 Rd7 Rb8 a8B+ Rb7 a7 Ne7 Na6 Na4 Qc2 Qg5 Qc3 Ng3 Be6+ Kb6 Bc4 Nh1 Be6 Rc7 Bad5 Qg2 a8B Ra7 Bc4 Qh2 Nd2 f1Q Bb7 Qf6 Bc8 Kc6 Nf1 Qe2 Qf8 Ra8 h8R Qb2 Rh7 Ra7 Qh8 Qd4 Bgf5 Rg2 Bg6 Re2 Rg7 Be8 Rf7 Qg7 Rb7 Ng8 Rfd7 Ne7 Qf8 Ra8 Qf5 Bf7 Qh3 Nb6 Nc7 Ra3 Na6 Na4 Rdc7+
RN2BbQ1/1B2r3/1nRbN3/qb1R4/r1NBP1kp/1Q1K3n/Pq4B1/rB6 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 d4 Kd7 Kd2 f5 g4 h5 e6+ Ke7 d6+ Ke8 d7+ Ke7 a6 b5 d5 c5 a7 h4 g6 Kf6 d6 Kg5 g7 c4 e7 b4 e8B c3+ Kd3+ f4 Qb3 c2 Nh3+ Kh6 Be3 c1B Nd2 Bb7 Ng5 f3 Nc4 f2 Bd4 Bf4 Rd1 Nf6 g8B Nh5 Bh7 Bc6 Bg2 f1R Ne6 Qa5 d8N Bb5 d7 B4d6 Nc6 Rg8 d8Q Nd7 Nb8 Rg7 Rd2 Ra1 Rc1 Re7 Bhe4 Bg3 Bb7 Bd6 e4 Nb6 g5+ Kh7 g6+ Kh6 g7 Nf4+ Ke3 Nh3 g8B Rf7 Qc8 Kh5 Kd3 Kg4 Rcc2 Re7 Bgf7 Ba6 Ba4 Bb5 Bg6 Bh6 Qg8 Bf8 Be8+ Ng5 Qa3 b3 Rc3 b2 Bc2 b1Q Qb3 Qc1 Bb1 Qb2 Nc6 Rd8 a8R Rdd7 Nb8 Rc7 Bc8 Ra7 Bb7 Ra6 Rf2 Ra7 Rf5 Ra6 Rd5 Ra7 Ng7 Nh3 Ne6+ Rg7 Rh5 Qb4 Rd5 Ra4 Rc2 Qa5 Rc3 Bc6 Nd2 Bd7 Rc7 Bc6 Nc4 Bb5 Ng5 Rh7 Rc6 Re7 Ne6+
n5NQ/1r3n2/2kbKRqR/N2R3R/1P1b2r1/1rQ2N2/3p1PBq/BR2B2b b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kd3 Kd7 Kd4 g5 Ke5 a5 c4 e6 b4 d4 h4 d3 f6 g4 c6+ Kc7 f7 a4 c5 g3 h6 g2 h7 a3 h5 a2 h6 Qh4 b6+ Kd8 c7+ Kd7 c6+ Ke7 b7 Qh3 Qe1 Ra3 Nf3 g1Q Nbd2 Rb3 Bg2 Na6 b8R Bb7 c8Q Nc7 Nc4 Na8 Rb1 a1B+ Qc3 Qhh2+ Bf4 Bb2 c7 Bc6 Rb6 Ba1 Qb8 Kd7 c8N Be4 Rb5 Kc6 Rd5 Bd6+ Kd4 Bb2 f8R Ba1 Bd2 e5+ Ke3 Bb2 Be1 Ba1 Rf6 Bb2 Bh3 Qg6 Bg2 Ba1 Rb5 Bd5 Ra5 e4 Kd4 e3 Ne7+ Kd7 Rc5 Bc6 Rd5 e2 Bd2 e1R Qf8 Rf1 Be1 d2 Qb8 Qg1 Rhh5 Qh2 Qf8 Rg1 Qg7 Qe8 Ke4 Kc7 Kf5 Qg6+ Ke6 Bb7 Nc8+ Kc6 Qf8 Ne7 Qd8 Rf8 h8B Rf7 h7 Ng8 Bg7 Bb2 h8R Nh6 Rh7 Rc7 Qh8 Nf7 R7h6 Ba1 Bh1 Rg4 Bg2 Rd7 Ne7+ Kc7 Qd3 Bd4 Qc3 Bc6 Ng8 Kb7 Rc5 Be4 Rb5+ Kc6 Rbd5 Rb7 Nh4 Bd3 Bh1 Be3 Qe5 Bf1 Nf3 Qe4 Rff5 Qc2 Qa1 Bg2 Bb2 Rb6 Rff6 Bd4 Bc3 Rb7 Qa3 Qg6 Ba1 Rb2 Qc3 Rb3 Nh4 Bf1 Be4 Bg2 Bf3 Bh1 Bg2 Qd3 Nf3 Qg6 Na5+
BN1r3b/q2NQ1bq/2nkN3/NB6/1P1n2N1/4rr2/QRPp1B2/Rb1K1R2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 d5 f4 Kd7 h6 g5 h5 a5 f6 e5 b6 e4 f7 e3 c6+ Ke7 h7 a4 f5 e2 c7 g4 b7 d4 h6 a3 f6+ Kd6 Be3 a2 Nf3 g3 Na3 g2 Bf2 g1B Qb1 d3 Nc4+ Kd7 Na5 Ne7 Ne5+ Kd6 Ng4 Bg7 f8N Nbc6 b8N Nf5 f7 Bb7 c8B Qe7 Ne6 Qd7 f8N Nfd4 b4 Qe7 Nfd7 Rf8 h8Q Rf3 h7 Bh2 Qg8 Bhe5 h8R Qf7 Kd2 e1R Qh7 Ree3 Kd1 d2 Bb5 Qg8 Qh4 Qh7 Rf8 Bh8 Qb2 Beg7 Rb1 Ba6 Bb7 a1Q Rf4 Qa3 Qa2 Qa4 Rb2 Qa3 Ba4 Bc4 Bb5 Qa4 Na6 Rb8 Ba8 Rd8 Nab8 Bd5 Nb3 Qa7 Na5 Bc4 Qe7+ Kd5 Qa1 Ba2 Rf1 Bb1 Re4 Rd3 Ree1 Rde3 Qa2+ Rb3 Qa1 Ba2 Qb1 Nf5 Ke2 Ra3 Rc1 Rae3+ Kd1 Nd4 Qh4 Kd6 Qa1 Bd5 Qa4 Bc4 Ra1 Ba2 Qa3 Bb1 Qa2 Rff8 Qg5 Rff3 Qe7+
n6R/KQ1b3N/1r1b1N2/1QN1p1nQ/n1P3B1/kP1NB1rR/qq3R1r/1N6 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Kd3 g5 Kd4 d5 f4 Kd7 h4 e6 c4 a4 b6 Kc6 h6 a3 h5 a2 b7 g4 f6 g3 f5 g2 b3 Qd6 f7 Nd7 b8N+ Kb7 c6+ Kb6 f6 Ka5 c7 Kb4 h7 Qc6 h6 Ne7 Na6+ Ka5 Be2 Nc5 Bg4 Qa4 Nf3 g1N Be3 Nh3 Ne1 Ng5 Rh3 Bd7 c8Q Rb8 Nd3 Rb6 Qb7 Nc8 Qg1 Be7 f8N Bd6 f7 Qa3 Qc1 Na4 Nac5 Rg8 h8R Qb2+ Nc3 Rg6 h7 Rh6 Rb1 a1Q Qh1 Qba2 Rf1 Q1b2 Rf2 Rh5 Qf3 Rh6 Qf5 Rh5 Ne5 Kb4 Ned3+ Ka3 Qe5 Ra6 Qf5 Ncb6 Qe5 Na8 Qf5 Be8 Nfd7 Rb6 Nf6 Bd7 f8N Rh4 Rg8 Rh6 h8Q Rg6 Qh5 Rh6 N8h7 Rg6 Ne1 Rg7 Kd3 d4 Rh8 Rg8 Qfd5 Rg6 Qdc6 e5 Qb5 Nf7 Ke4 d3 Kd5 d2 Ned3 d1R Q7c6 Rh1 Qc8 Rb8 Qc7 Rh2 Qcb7 Bf5 Kc6 Ng5 Qc7 Rbg8 Kb7 Bd7 Ka7 Rb8 Qcc6 Rb6 Qb7 Ne4 Bd1 Rg3 Bg4 Ng5 Nb1+
2Rr3q/RbN1R2Q/1QBk3K/3Pr2Q/7R/Bb1n1qbp/N3R1rP/5nN1 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 exd5 c3 bxc3 Bh6 c4 Bg7 c5 Bf8 d6 Kd7 Ke2 f5 Kf3 a5 Kf4 h5 c4 a4 g4 h4 d4 h3 g6 a3 Kg5 a2 c6+ Ke6 g7 f4 c7 f3 d5+ Kd7 b6 f2 c5 Bb7 c6+ Ke8 d7+ Kf7 Nf3 Ra7 Bb5 f1B Nc3 Bc4 Re1 Nh6 g8R Ba6 b7 Bb3 Ng1 Nf5 c8Q Qb6 d8R e5 c7 e4 Re8 e3 Qd8 e2 c8R Ng3 Bc6 Nd7 b8N Bb7 Na6 Qf2 Qb6 Bd6 Nc7 Nc5 Rg6 Be5 Rh6 Nf1 Rh4 Bg3 Re3 Rf8 Kh6 Rd8 g5 Nd3 g6+ Kf6 g7 Kf7 Ne6 Ke7 g8Q Kd6 Nc7 Qf5 Re7 Qf7 Rb1 a1Q Qh7 Ra2 Bb2 Qf2 Bc1 Rd2 Rb2 Rc2 Ra2 Qf7 Raa4 Rd2 Na2 Qh8 Ra7 Rc2 Qd2 Qf2 Qg5 Qf3 Qh5 Rb2 Rd1 e1R Rd2 Re2 Rc2 Rg2 Rf2 Re2 Bb2 Re3 Re2 Re5 Ba3+
1QN2r2/1NqB1R1B/4Q1B1/2P4N/2n1pQ1K/R1B1r2b/1P1q1B2/2kqb1nr b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 Kf7 c4 h5 f4 d5 Kf2 e5 Kg3 a5 c6 d4 b6 d3 b7 d2 c5 a4 c7 a3 f6 Ke6 g6 Kd5 f5 Ke4 g7 Ke3 f7 a2 g5 e4 g6 Bd7 c8N Bb5 f6 Be8 Ne2 Ra3 Nf4 Ra8 Bb5 Ra3 Qg4 Bd7 Rf1 Be7 f8Q Nh6 g8B Nc6 b8Q Ne5 f7 Qc7 g7 Nf3 Nc3 Ng1 Qe6 Ng4 Bh7 Ne5 g8B Nc4 Bg6 h4+ Kg4 h3 Nh5 h2 B8h7 Bd6 Kh4 Be5 Qfd6 Rf8 Rf5 Bh8 Qf4+ Kd3 Ba4 d1Q Be3 Qd2 Nb5 Bc3 Nbd6 Rb3 Nb7 Kc2 Bf2 h1R+ Kg5 Ba5 Bc6 Re3 Rf6 Rd8 f8B Re8 Bg7 Rf8 Rf7 Bb4 Qef6 Bh3 Qe6 Bc3 Kh4 Ba5 Rd1 a1Q Bd7 Qac1 Re1 Qcd1 Bc3 Kc1 Re2 Qd5 Rd2 Bb4 Rd3 Ba5 Bd4 Be1 Ra3 Qdd6 Be5 Q6d2 Bc3
qRb4B/2nk2b1/brB2QNR/1P1q4/1N6/pQ2R1Kn/n1P4Q/1r1R1NR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 d5 b4 e5 f4 a5 Kf2 g5 h6 e4 c6 g4 b6 e3+ Kg3 e2 b5 e1N h5 d4 c7 d3 f6 a4 b7 a3 f7+ Kd7 h7 d2 h6 Qg5 f5 Qe3+ Nf3 Qe2 f6 Be7 f8Q Ra4 f7 Ng2 Nh2 Bf6 Rg1 Nc6 b8R Rb4 Bb2 Qc4 Nc3 Nf4 Qb1 d1B Na2 Nh3 Bg2 Nge7 Nf1 Ba6 c8R Qd5 Re8 Bg7 Be5 Rg8 h8Q Rb2 h7 Nb4 Bd4 Qa8 Bc3 Ned5 Re3 Nc7 Bb7 Bf3 Bf6 Bd5 Be5 Be6 Bd4 Rb3 Qb2 Bf5 Rd1 Be6 Qc3 Rb1 Qb3 Bf5 Nc3 Na2 Nd5 Be6 Nb4 Bf5 Qc5 Re8 Qe5 Re6 Qf6 Rb6 f8R Be6 Rfe8 Bf5 R8e5 Be6 Rh5 Bf5 Rh6 Be6 Kg2 g3 Kf3 g2 Kg3 Nc3 Qhf8 Bg4 h8N Na2 Ng6 Be6 Qf2 Bf5 Qf6 Be6 Rh1 Bf5 Qg1 Be6 Qh2 g1Q+ Kh4 Qg2 Rg1 Qd5 Kg3 Bf8 Qg5 Bg4 Bh8 Bg7 Qh4 Kd6 Qg5 Bc8 Qf6+ Kd7 Bc6+
1B2q1b1/1QK5/BN2Q1RP/1b3rbn/Pn6/N1pR1rQB/1k3NqN/1n2N3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 c5 a4 b5 d4 g5 f4 c4 a6 g4 h6 g3 a7 c3 h5 e6 f6 g2 f5 Bd7 d6 Qc8 h7 Ne7 d5 Bh6 f7 Bg5 f8Q Ng8 f6 Qc6 h6 Bc8 d7+ Ne7 d8N Bh4 f7 Qd7 d6 Qe8 d7 Bg5 Kd6 e5 Bf4 e4 Nh3 g1Q Qf3 Kb3 Ne6 b4 d8Q e3 Qc7 e2 Qg3 e1N Na3 Bd7 Qb7 Bc6 Rd1 Nc2 Qg8 Qg2 f8N Bd7 Ba6 Nd4 Nf2 Nc2 Kc7 Kb2 Rhg1 b3 Nc5 Nbc6 Qe6 N6b4 Rd3 Bb5 Nfd7 Ng8 Nb6 Nf6 Be5 Rf8 h8N Rb8 a8B Nh5 Ng6 Rf5 Nh4 Rd8 Nf3 Rd6 Rd2 Rd3 Nh2 Rdf3 Rdd1 Ka2 Rd5 b2 Ncd3 b1B Ne1 Kb2 Rd3 Ba2 Qe4 Bbc4 B8b7 Bab3 Bc8 Bb5 Qb7 B3c4 Qd7 Bf7 Qe6 Bg8 Nac4+ Kc1 Kd6 Bf6 Qg4 Rg5 Qef5 Na3 Bg3 Nb1 Na3 Qh1 Qh4 Bh8 Qff7 Bg7 Bh3 Bf6 Qe6 Rgf5 Bf4+ Kb2 Rg6 Bg5 Qg4 Nc6 Qg3 Qg2 Be5 Qf8+ Kd7 Qb8 Bc7 Qe8+ Kd6 Nb4 Bb8 Bf6 Kc7 Bd8+ Kd6 Bg5 Kc7
R1QB2rQ/4K1R1/q3nNbp/n2q4/PQrb3N/q6P/1nB1kRQ1/4B1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
2bNq1NB/3Bbr1Q/1QR3P1/p1N4K/Brn1Pkn1/8/4Bn2/1qqQBR2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 f5 g4 a5 d4 c5 b4 h5 e4 c4 d6 Ke6 d5+ Kd7 e6+ Ke8 b6 h4 b5 c3 b7 h3 e7 Kd7 b6 h2 g6 c2 g5 f4 Kg4 f3 g7 f2 g6 Qe8 Nf3 Rh7 Bd2 c1N Ng5 Rh8 Nf7 Rh5 Be2 f1Q Nh6 Re5 Nc3 Nb3 Rc1 Qd8 Be1 Qe8 Na4 Ra7 Rc6 Re6 Kh5 Qg2 Rf1 Na6 b8Q Rc7 b7 Qh1 Qa7 Nb4 b8Q Nd3 Qbb6 Nd2 Qab7 Nf2 Q7a7 Nc4 Qab7 Qf7 e8B+ Kd8 d7 Ke7 d8N Kf6 d6 Ke5 d7 Be7 Nc5 Nf6+ Kg5 Qf8 g8B N6g4+ Kh5 Kf4 Q7a7 Rd6 Be6 Rd4 Ng8 Rb7 Nf7 Qg1 d8B Qh1 B6d7 Qg1 Qbb3 h1Q+ Qh3 Rb4 Qb6 Rd6 Qh4 Rf6 Bc7+ Ke3 Nd8 Rf7 Nh6 Qh8 Be5 Qf8 Bh8 Kf4 Rc7 Qg8 Ba4 Qf8 Bed7 Qe8 Qh3 Qf3 Qh1 Qd3 Ng8 Qb1 Qh2+ Qg3 Qh3 Qc3 Rc6 Qcc1 Qc3 Qbb2 Qg7 Qbb1 Qh7
1q1bB3/1q1Q1n2/1r2bQp1/1rqB1BN1/1k2P1bK/4PN1n/1B2R3/RQB1N3 b - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 h5 gxh5 e5 a4 e4 axb5 e3 fxe3 Nh6 e4 Ng8 Kf2 Ke7 Kg3 a5 c4 f5 h4 d5 b4 g6 b6 d4 h6 d3 h7 a4 e3 d2 b5 a3 b7 a2 c6 Kd6 b6 Kc5 h5 Qd5 c7 f4+ Kh4 f3 h6 f2 Na3 Ne7 Nf3 Nec6 Nc2 Nd7 b8B Nf6 b7 Ra6 Rh2 Qe5 Nce1 Bg4 c8B Nd5 Bf5 Kb4 c5 Nf4 Bc4 f1B Re2 Nh3 Bd5 Nd8 c6 Nf7 c7 Rb6 c8B Qd4 Bd6+ Qc5 Be5 Be7+ Bf6 Bg2 b8Q Bd8 Bcd7 Re8 h8N Re5 h7 Bf1 Qc2 d1Q Qb1+ Qb3 Qd6 Bg2 Be8 Bf1 Rf2 Bc4 Qd7 Qb2 Re2 Bb3 Ba8 Be6 Bc6 Qc3 Bb7 Reb5 Ba8 Qc5 Bd5 Ne5 Nf7 Qb3 N7g5 Nf7 Qc2 Qb1 h8Q Qb2 Rb1 a1Q Qg7 Qa6 Ra1 Qb7 Qb1 Qb3 Bfb2 Qb8 Ba8 Qbd5 Qf6 Qdc6 Bb7 Qcc8 Bc6 Qcb7 Bd5
1B2Nk2/NrRb1q2/1b1BP3/r2q2R1/1nb1p3/QNPBQ1Q1/N4nn1/2K4N b - - 0 1 illegal: No proof kernel
Bb2K3/1Q3BQ1/Q2PPN1R/2Q1R3/Q1n1r1r1/4NpBq/brnn2N1/q5k1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 Ke4 a5 h4 g5 b4 c4 d4 c3 e6 Kd6 Kf5 a4 e4 a3 b6 a2 h6 c2 e5+ Ke7 b7 f6 Kg6 f5 d6+ Ke8 h5 f4 d5 g4 h7 g3 e7 Kd7 Kf7 g2 b5 Bg7 b6 Bf8 h6 Qc7 e8B+ Kd8+ d7 Qd6 e6 Be7 Ne2 g1R Na3 Nf6 Nc4 Qa3 Bg2 Ne4 Ne3 Nc6 b8N Ra4 b7 Kc7 d6+ Kb6 d8Q+ Kc5 Qf1 Nd2 Qc7 Re4 Rh3 Rg8 h8Q Rg4 h7 Bd8 Qg7 Bd7 Bf3 R1g2 h8Q Bc8 Rb1 a1N Qh4 Rf2 Bb2 c1Q Be5 Nc2 Ra1 Qcb2 Re1 Qba1 Kf8 Bd7 Bf7 Rh2 Qc8 Bc7 Qg1 Na5 Qgf2 Bb5 Nd7+ Kc6 b8Q Bc4 Ke8 Ba2 Nf6 Kc5 Qa6 Nac4 Qbb7 Bb8 Bg2 Rd4 Bd5 Re4 Bc6 Qd3 Qg1 f3 Nf4 Qf1 Qgf2 Qh1 Nfg2 Qf1 Bg3 Kd4 Ned5+ Kd3 Qc5 Qh1 Nde3 Qf1 Rb1 Ke2 Rb5 Qh1 Nd1 Kf1 Nde3+ Kg1 Ra5 Rg5 Qf4 Rg4 Rh6 Re5 Qfd4 Ree4 Bd5 Nb2 Qa4 Nbc4 Nh4 Re2 Nhg2 Rf2 Qbc8 Qh3 Ba8 Rf1 Qcb7 Rb1 Qca3 Rb3 Re5 Rb2 Qc5
K1k5/3qr2R/1rPP1n2/Q1Qnrqb1/2Q2p1B/1Q4Rb/NN1Q4/1bRB2B1 b - - 0 1 illegal: No proof kernel
1N6/q4bNr/P3NP1B/6nN/3QQrRK/2QBp3/kq1NRrqR/4n1b1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kd7 h4 Kd6 d4 e5 f4 b5 Kf2 g5 Kg3 c5 h6 e4 h5 b4 f6 c4 f5 b3 h7 c3 h6 c2 a6 g4 a7 b2 a5 Na6 f7 Rb8 a8Q Bd7 Ne2 Rc8 Ra4 Bc6 Nd2 b1R Nf4 Rb5 Rh2 Qc7 Kh4 g3 Nh5 g2 Bd3 g1Q Re2 Nb4 a6 Qa7 f6 Be7 f8N Be8 Nd7 Rc4 Nb8 Bf7 Qe1 Qg2 Ng7 Kc7 d6+ Kb6 d5 Kc5 d7 Bd8 d6 Bb6 d8Q Ra5 Ba3 c1Q d7 Qb2 Qc1 Kb5 Qc3 Nc2 Bf8 Ne1 Qd5+ Bc5 Qdd4 Bb6 Qe7 Bc5 d8N Bb6 Qdd6 Bg1 Qdd4 e3 Qee4 Bg6 Ra3 Bf7 Nde6 Ra4 Ra1 Ra2 Rc1 Ka4 Rb1 Qbb7 Rb5 Rc2 Rg5 Qb2 Rg4 Rb4 Qcc5 Ka3 Qcc3+ Ka2 Nh5 Ne7 Neg7 Rg8 h8R Nc6 h7 Nd8 Ne6 Ra4 Bh6 Rf8 Neg7 Ne6 Rg8 Rb4 h8N Ng5 Ng6 Rc8 Ngf4 Rc7 Nfe6 Re7 Rh8 Rd7 Qd6 Ra4 Qf5 Rf4 Qe4 Rc1 Ng3 Qb4 Qdd4 Be8 N7f5 Qb2 Bf8 Nc2 Rh5 Rc7 Bh6 Rh7 Nfg7 Bf7 Ngf1 Qh1+ Kg3 Rb1 Rh3 Qg2+ Kh4 Rc1 Ng3 Rcf1 Rh2 Ne1 N3h5 R1f3 Qee5 Rf2 Qee4
Qq1qRB2/N5N1/pNr2N1n/4P1P1/B2n3R/rQ4qR/1b1K2Bk/1b1b2N1 b - - 0 1 illegal: No possible last move
1R5B/Qr1r3P/7P/3B4/k1nNnrRQ/b3nN1p/bB3qB1/B1K2RNq b - - 0 1 illegal: No proof kernel
n4q2/1R2Nnp1/P1Q5/BP2R1r1/1BN1rrBN/2R2Bb1/4Q1b1/1BK2bkq b - - 0 1 illegal: No proof kernel
BR4nK/5p1R/3BP2Q/1qR1N1Q1/1RrR1P1N/n3N1Qb/1q1bn3/r1k3q1 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 c4 a5 f4 d5 h4 g5 e4+ Ke6 c6 g4 b6 g3 h6 g2 c5 a4 h5 a3 c7 a2 b7 Qe8 c6 Bd7 c8Q Ra3 h7 Ne7 c7 Ng6 h6 Rg3 Qb3 Rc3 Ba3 Rc2 Nf3 g1N Qd8 Qe7 c8R Rc6 Bg2 Na6 b8R Be8 Rb4 Rc5 Nh4 Qg5 Nd2 Ne7 Rd1 Bd7 Nc4 Nc7 Qg3 Ng8 Ne3 Qf5 Qdg5 a1Q+ Rb2 Ra5 Bd6 Qc1 Rcb8 Ra1 R2b4 Bc8 R8b5 Bd7 Rc5 Nb5+ Kd3 Na3 Kd4 Bb5 Bf3 Bf1 Rd2 Bh3 Bg2 Nf6 Rd3 Rg8 h8N Qc2 h7 Qb2+ Rdc3 Be7 N8g6 Rc8 h8Q Ng8 Qhh6 Bd8 Rh2 Ba5 Bh1 Qg4 Bg2 Qge2 Bf3 Qb5 Rcc4 Rc5 Rh1 Kd7 e6+ Kc6 Ke5 Ne2 Rd4 Rc4 e7 Kb6 e8R Ka6 Rbb3 Bb4 Bg2 Ka5 Rb8 Ka4 Rcc1 Bd2 Rcc3 Ne7 Kf6 Ng8+ Kg7 Qc5 e5 Qb5 Re4 d4 e6 d3 Ne5 Be1 Qh2 d2 Rd4 d1Q Kh8 Bd2 Qhg3 Qg1 Bd5 Rb4 Rc5 Rc4 Rbd3 Kb4 Ba8 Ka4 Rc3 Kb4 Rc1 Kb3 Rc3+ Ka2 Rb3 Kb1 Rb4 Kc1 Nhg6 Bf1 Rh5 Bh3 Nh4 Qc6 Qhf6 Qa6 Rh7 Qb5 Qfh6
2B4r/4pk2/rNbQ2bQ/rQ1nqQq1/P3PN2/B1Q2B2/nR1K4/R1N3q1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 f4 Ra8 fxg5 Ra6 h4 Ra7 g4 Be6 h5 Bd7 h6 Bf5 g6 Ra8 g5 Bg7 hxg7 Bc8 a4 b5 d4 f5 e4 h5 d6 c5 d5 b4 a6 f4 a7 h4 Bg2 h3 Nd2 h2 Nb3 c4 Qg4 f3 Ba3 c3 Qf5 c2 Nh3 c1R+ Kd2 f2 Bf3 f1Q Nf4 Qa5 d7+ Kd8 Rg1 h1Q Rg2 Rb1 Nc1 Nf6 g8B Qh4 g7 Na6 g6 Qg1 Be6 Bb7 Rf2 Qhg5 g8Q+ Ne8 g7 Bc6 Qgf7 Nec7 Q7f6 b3+ Qc3 b2 Re2 Nb4 g8Q+ Ne8 Qgh7 Na2 Qg7 Nf6 Qh6 Qc7 Rf2 Qe5 Re2 Rb8 a8N Rb6 Rf2 Ra6 Nb6 Ra5 Nd3 Rf1 Nc1 b1B Re2 Bd3 Rg2 Be2 Rh2 Kc7 d8Q+ Kb7 Bg4 Re1 d6 Ra6 Nb3 Bf3 Kc2 Rb1 Nc1 Rb5 d7 Rba5 Qg8 Kc7 d8Q+ Kb7 Qdd3 Kc7 Qgg6 Nd5 Qb5 Kd8 Bc8 Be2 Qgf6 Ke8 Qd6 Bd1+ Kd3 Bf3 Rb2 Bd1 Bh3 Bh5 Kd2 Bf7 Bg2 Bg6 Qfh3 Kf7 Bf3 Qgf5 Qg4 Qg5 Qf5+
Qq2nBk1/Bb1P1r2/n3N1B1/1p4bK/RB3Br1/R5NR/QPq1N2n/2q5 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 Nc6 gxh5 Qd6 a4 Qc5 a5 Qb6 axb6 Nb8 Ke2 Kf7 Kf3 g5 Kg4 e5 h4 a5 d4 c5 f4 c4 d6 c3 b7 a4 d5 c2 h6 a3 d7 e4 d8N+ Kf6 h5 a2 d6 e3 d7 e2 h7 Kg7 h6+ Kf6 Ne6 Kf7 f6 e1N f5 Na6 b8B Be7 Kh5 g4 Bd3 g3 Rh3 g2 Nd2 Bb4 Ne4 Bc3 Ne2 g1Q N4g3 Qf2 Bcf4 c1Q Ba7 Nf3 Qa4 Bd2 Qb3 Nh2 Qd5 Ne7 Bb1 Re8 h8Q Bb7 h7 Rg8 Be4 Rg6 Qb8 Ng8 h8R Rg4 Qd8 Rc8 Qc4 Rc6 Qa8 Qc5 Qa4 Q5c2 Qa3 Nh6 Rc8 Rc3 Rc4 Ng8 Ra4 Rf3 Qb3 Ne7 Qd5 Nc8 Qc4 Kg8 f7+ Kh7 f8B Nd6 f6+ Kg8 Ra3 Ne8 f7+ Kh8 Bfe3 Rff4 Bb4 Rf6 Nd8 Nd6 Ra4 Rf3 Beb6 Bg5 Bc7 Qf4 f8B Ne8 Ne6 Kg8 Qd5 Qe5 Bcb8 Rf7 Bg6 Qec7 Qb3 Qd8 Bf4 Qb8 Rf1 a1Q Rf3 Qh1 Qa2 Qhc1 Rfa3
Rk1rnQ2/1B1P3q/QB2q2P/1r2b1R1/1Q1N4/1bNp4/nq1n2NB/2Q2Q1K b - - 0 1 illegal: No proof kernel
Q1r5/2P1B1K1/b1BbR1Qn/1Q3R2/Pn2pRNN/R2R3r/q2n1b2/3q1B1k b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 b5 a4 g5 h4 d5 c4 g4 f4 g3 c6 g2 h6 e6 c7 b4 c5 b3 h7 b2 h5 Ne7 a6 Ng8 c6 Nd7 h6 Rb8 a7 Ba6 a8Q Ne5 c8B Ng6 c7 Be7 Qh5 Ne5 Nd2 b1Q Rh3 Qe8 Rd3 Ng4 Bd7 Bc8 Ngf3 Qa2 Nh4 Bf8 Bc6 Nh2 Nc4 g1B+ Ne3 Bf2 Ba3 Qd8 Qe8 Bd6 Qg6+ Ke7 Qa5 Ba6 Qb5 Rc8 Bc5 Be1 Ng4 e5+ Ke3 d4+ Ke4 Nf3 f6+ Ke6 f7+ Qf6 f8R Bf2 Rd2 d3 f5+ Ke7 Rdd1 d2 Bb4 Qg5 f6+ Ke6 f7+ Qf6 Re1 d1N Rd8 Nb2 f8R Nd3 Bc5 Qb1 Ra3 Qd1 Re2 Nb4 Ree3 Be7 Rdd3 Bd6 Re2 Ke7 Re1 Qe6 Rf4 Qa2 Kf5 Nd2 Ree3 e4 Ref3 Nf6 Kg5 Ke6 Rf5 Rhe8 h8Q Re7 R3f4 Rh7 Qgg7 Ng8 Kg6 Nf6 Qd8 Ng8 Qdf8 Rh8 h7 Nh6 Qd8 Rf8 h8R Rf6+ Kh7 Rg6 Nf6 Rg3 Qg6 Rf3 Kg7 Rh3 Rff3 Rb8 R5f4 Ke5 Qc8 Ra8 Qcb7 Rd8 Qa8 Rc8 Re8+ Be7 Rg4 Ng8 Rfe3 Nh6 Rg5+ Kf4 Ng4 Bd6 Re6 Be7 Bd4 Bc5 Bf6 Bd6 Rgd5 Rb8 Be7 Rc8 Nf3 Kg3 Rf5 Qe2 Nh4+ Qf3 Nf6+ Kh2 Ng4+ Kg1 Qe5 Qe2 Ref3 Kh1 R3f4 Qd1 Qb5
rbr1Q3/2P1K2P/n1rB2Qq/1n6/q1bB3p/R1NR1B2/R1BB1bk1/5N1N b - - 0 1 illegal: No proof kernel
4q1NQ/1bPQpq1B/q1r2P2/1rk3Q1/1b3Q2/bn2n1BR/3NQRR1/1K2B3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 a5 b4 d5 c4 Kd7 Kc2 g5 h4 g4 f4 g3 b6 Kc6 b5+ Kb7 f6 d4 h6 a4 h5 a3 f7 g2 h7 a2 f5 Ra7 c6+ Ka8 c7 Kb7 c5 Qd5 h6 Nc6 Nc3 Qe5 Nd5 Qf6 Qe2 Ra5 Rh3 Na7 c6+ Ka8 Nf3 g1B Bd2 Qe6 Nf6 Bb7 Be1 Bg7 Nd2 d3+ Kb2 Qc8 f8R Qe8 Rb1 Bh2 c8Q+ Bb8 Qce6 Bd6 Qd7 a1Q+ Kc1 Qa4 Rb2 Ba3 Kb1 Qb3 Bg2 Qf7 Be4 Bb4 Nd5 Bgc3 Nf6 Ba3 Rc2 Bcb4 Rb2 Ba6 b7+ Kb8 Qe6 Kc7 b8B+ Kb6 Qd7 Bc8 Bbg3 Kc5 b6 Nb5 b7 Nd4 b8Q Rb5 Qf4 Bb7 c7 Nb3 Ng4 Nf6 Qg5 Nd5 Nf6 Rg8 h8Q Na5 h7 Rg6 Ng8 Ne3 Qhf6 Nb3 h8Q Rh6 Qf4 Rg6 Q6g5 Rc6 Nf3 d2 Bc2 Nc1 Bd3 d1Q Nd2 Qdb3 f6+ Qbd5 Bh7 Qe6 Rf7 Nb3 Rg7 Qd6 Qdg4 Qe6 Rg6 Q6c8 Qd7 Qa8 Rg7 Qa6 Qef2 Qd8 Ne4+ Kb6 Qgg4 Na5 Bh2 Re6 Q2f3 Rd6 Rf2 Nb3 Nd2 Qf7 Qe2 Rc6 Qh4 Qda8 Rgg2 Qae8 Bg3 Kc5 Qhg5+
1N1rq2R/P1Rq3r/QpBQ2k1/2N1R2R/n5q1/B1Rr3b/5QPN/2K1bn2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kf7 d4 c5 Kd2 h5 a4 e5 f6 e4 a6 c4 a7 b6 f5 h4 d6 h3 a5 h2 a6 Rh5 d7 Nh6 d5 Qe7 d8N+ Ke8 d6 Nc6 f7+ Kd7 g6 Qe6 g7 Qg6 g8R Ne7 f6 Bb7 Rh8 Nhf5 Nc6 Ke6 d7 Nd5 d8R Nfe3 Nf3 Kf5 Ra5 Rh7 Nc3 Qg4 Nb8 Kg6 Rd7 Bb4 f8R Bc8 f7 Rh3 Bd3 Nf1+ Kc2 Rh7 Na4 c3 Bb5 e3 Ba3 e2 Kc1 e1Q Rc7 c2 Bc6 Qe8 Nc5 Nc3 Qd6+ Be6 Rb5 Na4 Ra5 Qd7 Rfc8 Be1 f8Q Qe8 Qff4 Rh3 Qe3 Qd7 Qf2 Rg3 Rg1 h1R Nh2 Rd3 Rh5 Qe8 Rb5 Qd7 Rch8 Qe8 Rb3 Qd7 Rc3 Qe8 Nbd7 Rd8 Nb8 Qd7 a8Q Qe8 Nf3 Rh2 Re5 Rh7 Rh1 Qd4 Qf8 Qd6 Rhh5 Qd4 Nh2 Qdd7 a7 Bh3 Qb7 Qee7 Qa6 Qee8 Ne6 Nc5 Kb2 c1Q+ Ka2 Qg5 Kb1 Na4 Qd6 Qg3 Kc1 Qg4 Nc5+
1BB1R2k/5K1B/B1qR1Q2/N4Q1p/3nn2B/bP3bPr/2NRb3/Qbbr4 b - - 0 1 illegal: No possible last move
2Kb1B2/2Qr1B1n/RP2Q2b/nN1N4/6R1/1p1Q1b1R/1bP1Qr1Q/B1k1qb2 b - - 0 1 illegal: No proof kernel
2kN2nR/b3QNp1/3Qb2N/rn3n1B/qP2NQ1P/4B3/1RrNnK1n/R7 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 d4 a5 f6 c5 f7 e5 h6 c4 b6 e4 b7 c3 f5 c2 f6 a4 d6 e3 h7 a3 d5 e2 Kf2 e1N Nc3 a2 Be3 c1N Nf3 Nc2 Nd2 Ra3 Be2 Qa5 Nce4 Qc7 Bh5 Na6 b8R Qc4 h4 Qb4 Rh2 Qa4 b4 Nd4 Qe1 Kd8 d7 Bc5 f8Q+ Kc7 d8N Ba7 f7 Be6 Rg2 Nf5 d6+ Kd7 Qe2 Nc7 Qg4 Ne2 Qf4 Nb5 Ra8 Bb8 Qe7+ Kc8 f8Q Rc3 Qff6 Rc1 Nf7 Rc2 Rag1 a1N Nh6 Nb3 Ra1 N3d4 d7+ Kb7 d8N+ Kc8 Qed6 Nf3 Qfe7 Nh2 Qde5 Nf6 Q5d6 Rf8 h8N Ng8 Nh8f7 Re8 Qf8 Re7 Qe8 Ra7 Qee7 Ra6 Rgg1 Ra7 Rgb1 Ra5 Rb2 Nf6 Bc5 Ba2 Nc6 Be6 Qed8+ Kb7 Be3 Ba7 Q8f8 Nbd4 Re8 Nb5 Ncd8+ Kc8 Qfe7 Bd4 Qg4 Ba7 Rh8 Ng8 Qgf4
5q2/rQ1P1r2/R1QBNBB1/3p2rr/R1N3b1/nN5N/Kbn3PN/1Qr1k3 b - - 0 1 illegal: No proof kernel
R1k5/P4rNb/b1p2Nn1/nN1Q2NQ/B2B1rn1/5nqB/1KPRRN2/2n5 b - - 0 1 illegal: No possible last move
1r3Q1r/P1Q2q2/PBB3b1/1p1nQQr1/1r4Nn/1R1B1Q1r/RK4RN/4b2k b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 c5 Kc3 e5 g4 b5 a4 h5 f4 e4 d6 e3 d7 e2 f6 Ke6 g6 Kd5 f5 Ke4 f7 e1R g7 h4 a6 c4 a5 h3 d5 h2 a7 Qe7 d8Q Bd7 f6 Bc6 d6 Bd7 g5 Rh4 g6 Bg4 a6 Qe8 d7 Ne7 g8R Rh6 g7 Be6 Na3 Ng6 Qc7 Bd6 d8Q Bf5 f8Q Nc6 f7 Bg3 Nf3 Rh3 Qf6 Nce7 Be3 Rb8 Kb2 Nd5 Bb6 Nh4 Nc2 Bg6 Ra2 Qe7 Be2 Rg1 Ne3 Be1 Ng4 Rg2 Rg1 h1R Nfh2 Rgg3 Rg2 c3+ Kb1 c2+ Kb2 c1R Qfc8 Bb4 f8Q Rc4 Rh8 Qe8 g8B Be1 Be6 Qf7 Bd7 Ra4 Bc6 Rb4+ Qb3 Rf3 Q6d6 Rf5 Rh6 Re5 Bd3+ Kf4 Re2 Kg3 Qf5 Re8 Re3+ Kg2 Rh5 Rb8 Rg5 Rg1 Rf3 Ree8 Qde5 Kh1 Re3 Rd4 Qd1 Rec8 Qdf3+ Rg2+ Be2 Rb4+ Rb3 Re8 Qfd6 Rh8 Qf8 Bd2 Bd3 Be1+ Qfe2 Rgg3 Qef3+ Ng2 Nh6 Rgg4 Qfe2 Nh4 Qef2 Rgd4 Rg2 Rg4 Q2f3 Rg5 N6g4
Rrb1BnbB/2n2N2/2Nn2Bq/1RP1bb2/p1r5/Q7/NPB1B2k/K4Q1Q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 c4 h5 Kc2 e5 g4 d5 f4 a5 c6 h4 c7 d4 g6+ Kf6 g7 h3 b6 e4 g5+ Ke7 g6 Kf6 b7 e3 Nc3 e2 Kb1 e1N Be3 h2 Nh3 d3 Na2 d2 Be2 Qe8 Bd4+ Qe5 Ng5 Rh5 Nf7 Nd7 b8N Bc5 Nc6 Ne7 g8B Nf3 g7 Bd6 Bh7 Ng5 g8B Ne4 Bg6 Nd5 B8h7 Nf8 Rg1 h1B Rg5 Bg2 Qh1 d1B Bc3 Rh4 Bd4 Be6 c8B Rb8 Bd7 Nc7 Be8 Bb3 Rh5 Bc8 Bc3 Nd7 Rg5 Bh3 Rh5 Kg7 f6+ Kf8 Ng5 Bc5 f7 Kg7 f5 Kf6 Nc1 Rb5 Bg8 Rb8 Ra3 Qd4 Ka1 Nd6 Na2 Qe5 Ra4 Bd4 Ra3 Qf4 f8Q+ Nf7 Qc5 Nd6 Bd5 Qe3 Be4 Qd2 Bc2 Qf4 Nf3 Qh6 Ng5 Re4 Ra4 Rg4 Qa3 Rh4 Ncb4 Ke5 f6 Kf4 f7 Kg3 f8Q Be6 Qf5 Nf8 Qff1 Rf4 Nc6 Bf6 c5 Bf5 Rh4 Bg8 Nf7 Rd4 Rb4 Bh8 Rb6 Rg4 Ra6 a4 Ra8 Rf4 Rh2 Bg7 Rf2 Rg4 Rf4 Bf6 Rb4 Rc4 Rb5 Bd4 Qe4 Kh2 Qd5 Be5 Qdf3 Bg3 Bh8 Be5 Q3h1#
1nQQ4/2n5/4Rr1R/NPb2B1k/1N1q1nn1/1pRPQb2/r5Q1/1KBQB1b1 b - - 0 1 illegal: No proof kernel
b1bB1r2/nBQ2r2/4B2R/pQ4K1/1nR1N2P/P1RR3R/1k3rNQ/q2b1b2 b - - 0 1 legal: proof: g4 h5 gxh5 e5 e4 c5 b4 g6 bxc5 Be7 d4 Nf6 f4 Ng8 f5 Qb6 f6 Kd8 fxe7+ Kc7 dxe5 Nh6 e6 Ng8 e5 Kc6 Bh6 Qc7 Bc1 Qd8 Kd2 Kd5 Ke3+ Kc6 Kf4 d5 e8B+ Bd7 h4 b5 c4 f5 e7 a5 e6 b4 h6 d4 h7 d3 a3 d2 Bf7 b3 e8Q b2 e7 Nf6 Ne2 Rg8 h8R Rg7 Kg5 f4 Rh3 f3 Bg2 Nd5 Be6 f2 Nbc3 f1B Ne4 b1B Rh6 Rf7 Nf4 Nb4 Qe2 d1B Bb2 Qc7 Qd8 Bc8 Bf6 Qd7 Ra2 Qd4 Rd2 Qa1 Rdd3 Bbc2 Bh1 Ba4 Ng2 Bb5 Kg4 g5 Kh5 g4 Kg5 g3 e8Q+ Rd7 Q8h5 Rf7 Qf2 Bba6 Qg1 Bab7 Qh2 Ra7 Qe7 Rf8 Qh7 Ba8 Bd8 Raf7 Qe2 Kb7 c6+ Ka6 c5 Kb5 c7 N8c6 Qg7 Na7 c6 Ka4 Qe5 Bcb7 c8R Ba6 c7 Rf2 Rd5 Kb3 Qb5 Ka2 Qf4 Kb2 Rd3 Rf7 Rb8 B6b7 c8R Ba6 Rc4 Bc8 Qc7 Rf8 Ne3 g2 Rb6 g1R+ Ng2 Bfe2 Rdc3 Rgf1 Rd6 R2f7 Rdd3 R1f2 Ne1 Bf1 Bf3 Bc6 Ng2 B6b7 Nd6 Ba8 Bb7 Qa2 Ne4 Qb1 Rc5 Qa1 R5c4
b1qbQ3/K2QR1rB/B5Pn/3B4/krN1r3/2bp1QB1/P2R1BR1/3N1b1n b - - 0 1 illegal: No possible last move, all moves rejected
B3QBrb/2bn3k/1r2q1P1/1N5b/2R1Rpn1/2QnPR2/4KN1R/QN2n2R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 c5 d4 f5 g4 Kf7 e3 Kg6 d6 a5 e6 h5 d7 h4 e7 c4 e8Q+ Kh7 g6+ Kg7 b6 h3 d5 f4 g5 h2 b5 a4 d6 c3 b7 a3 b6 c2 Bg2 a2 Nh3 Ra6 Nf2 Nh6 Ke2 Rh7 Ba3 Kh8 g7+ Kg8 Be4 Qe7 d8R c1B d7 Nc6 b8R Qe6 b7 Ne5 Qc2 Qb6 Qc3 Bb2 Ra8 Qc6 b8N Rb6 Na6 Qe6 Nc7 Nhg4 Ra4 Rh8 Ba8 Kh7 g8R Bd6 Nb5 Bc7 Re4 Ba6 Rf1 h1N Rc8 Bb7 d8Q Nd7 Rg6 Rg8 Bf8 Bc6 Qdf6 Bd5 Nh3 Nhf2 Qfe5 Nd3 Rf3 Bb3 Nf2 Bd5 Nd2 Bb7 Rf1 a1N Nb1 Nc2 Rh1+ Nh6 Qed4 Nce1 Qa4 Ba6 Qa1 Bb7 Qb4 Bh8 Qbc3 Bb8 Rcc4 Bc7 Red4 Be4 Rh2 Bf5 Re4 Bg4 Rf6 Bh5 Rg6 Qc6 Rd6 Ng4 Rd5 Nb4 Rd1 Qe6 Rc1 Nbd3 Rd1 Nc2 Rdh1 Nce1 g6+
1B4Qr/2N1k2B/2Q2bp1/rR4B1/1QK2Nb1/P1Q4Q/n2P1r1R/nqr3nN b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 c5 Kd3 b5 f4 e5 h4 b4 a3 e4+ Kc4 b3 f6 b2 f5 e3 a6 e2 d6 e1N d7+ Kf7 h6 Ng2 h5 Bd6 h7 Ra7 h6 Qf8 d8B Ke8 f7+ Kd7 f6 Bf4 Qf3 Bd6 Ne2 Bh2 Ng3 Qd6 f8Q Nc6 f7 Nb4 Bd3 Na2 Nc3 b1R Nd5 Qb6 Bg5 Nh4 Nf4 Nf6 Qg8 Nd5 f8Q Ndb4 Bb2 Nc2 Be5 Rf1 Rb1 Na1 Rb5 Rf2 Bb8 Qg6 Qa8 Nf3 Bc2 Bg1 Rh2 Qf5 Nh1 g6 Bb3 Qb1 Qe4 Rb7 a7 Rb6 a8N Ra6 Nc7 Ra5 Qfe8+ Kd6 Qb7 Bg4 Qec8 Rg2 Qe4 Bd4 Qcb7 Bf6 Qec6+ Ke7 Qbb6 Ra8 Qa5 Ng1 Qb4 Bf3 Qc8 Ra7 Qh3 Bg4 Qhc3 Rf2 Qh3 Rc8 h8Q Ra5 h7 Rd8 Qg8 Re8 h8Q Rf8 Kd5 Re8 Qd4 c4 Kc5 c3 Qb4 c2 Qhc3 c1R Qh3 Rc8 Bd5 Rf8 Kc4+ Kd8 Qg7 Rh8 Bg8 Bf5 Bh7 Bc8 Qb3 Bg4 Qg8+ Ke7 Qb4+
4Q2K/R2BR3/Bk1P1nQn/Np2R2r/2B2N1n/B1b1nB2/2b1P1Q1/4brq1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 b5 Kg4 c5 Kf5 Kc7+ e6 g5 d4 f6 Kg6 g4 h4 c4 a4 g3 e7 f5 e8B c3 d6+ Kb7 d7 g2 a6+ Kc6 h6 f4 a7 f3 a5 c2 a6 f2 h7 Nh6 h5 Bb4 Kg7 Kc7 d5 Nf7 h6 Ne5 d6+ Kb6 Qd5 Bd2 Rh5 Ba5 Bf7 Nbc6 Nd2 Nf3 Nb3 Qe7 d8Q+ Qc7 Re5 Bc3 Nh3 g1B Na5 Nfd4 Qg5 Nb4 Qg6 Bf5 Qdg2 Nf3 Ba3 c1N Nf4 Raf8 a8B Nb3 a7 Qc5 Bb7 Bc2 a8B Nh4 Ba6 Nd4 Bc4 Nd5 Ra2 Nf6 Bf3 Bh2 Re7 Bg3 Re5 Rd8 Re7 Rhf8 h8R Rd7 Rg8 Ndf5+ Kh8 Rdd8 h7 Nh6 Ra1 Qd4 Ra2 Rc8 Ra1 Rc5 Re5 Rf7 Rge8 Qe3 R5e7 Rh5 Re5 Qc5 R8e7 Qe3 Qh2 Qc5 Bh3 f1N Qg2 Bge1 Bd7 Rf8+ Kg7 Qg1 h8Q Ne3 Qg8 Rf7+ Kh8 Rg7 Q6e8 Rg3 Qgg6 Rh3 Ba8 Rf3 Ra2 Rf2 Bf3 Rf1 Bb4 Ba1 Nb3 Nd1 Bab7 Be4 Ra7 Bc2 Na5 Ne3 Ba3 Bac3 Ba6
BKn5/3r2r1/1n1PQ1B1/1p1Q1nB1/N3N2B/1B2b3/P1RqR1b1/1Qb1b1Rk b - - 0 1 illegal: No possible last move, all moves rejected
bn4nn/Q2BBNN1/k1p2R2/8/NBR1BB2/3b1QK1/2rPPr2/2nRq1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 h4 f5 b4 g5 d6 a5 b6 Kc6 h6 Kb5 e6 a4 d7 f4 h5 f3 b7 c6 h7 a3 h6 a2 e7 g4 e8B Ka6 b5+ Ka7 b6+ Ka6 Bg2 Bc5+ Kg3 f2 Nh3 f1B Ng5 Ka5 Nc3 Be3 Qb3 Ka6 Be4 Qf6 d8B Bg2 Na4 Qf1 Be7 Bg1 Qf3 Ra7 Rb1 a1N Ne6 Nb3 Bca3 Nc1 Bd7 Ra8 Bab4 Qe1+ Kf4 g3 Ng7 Ra7 Rh4 Bh3 Rg4 g2 Rg6 Bf5 Rf6 Na2 Rd1 Nc1 Bd5 Bd3 Be4 Bc5 Kg4 g1N Kf4 Nh3+ Kg4 Qf1 Kg3 Ng5 Be8 Nd7 b8B Nf7 b7 Bg1 Bf4 Ra8 b8Q Bb7 Qc7 Nb8 Bd7 Ra7 Rf5 Ba8 Rc5 Nf6 Rc4 Rf8 h8N Ng8 h7 Rb7 Kg4 Rb5 Kg3 Rc5 Qa7+ Kb5 Ng6 Nh8 Ne5 Rf5 Nf7 Rf6 Rd4 Rc2 Rc4 Qe1+ Kg4 Ng6 h8R Rf5 Rh6 Nh8 Qc5+ Ka6 Rf6 Rg5+ Kh3 Rg2 Qce3 Rf2 Kg3 Ra2 Qd4 Rc2 Qa7+
1B3n2/1qrNRB2/PQ4PQ/R4pk1/1n3r1R/2n1QBKn/3bRRN1/1b3r2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 g4 c5 a4 h5 d4 b5 e4 f5 a6 c4 a5 b4 e6 c3 a7 b3 d6+ Ke8 d5 c2 e5 b2 e7 Kf7 e8R Kg6 d7 h4 e6 h3 e7 h2 a6 Nh6 d6 Qa5 d8Q Qd2+ Ne2 Bd7 Nc3 b1N Na4 Nf7 Kg3 Bc6 d7 Bb5 Nf4+ Kh7 g6+ Kh6 g5+ Kg7 Bc4 Na3 Ng2 Qb4 Qd6 Rh4 Nc5 Rf4 Q8b6 Nb1 d8R Nd7 Ra5 Rc8 a8B Nc3 Bf3 Rc7 Rc8 Nfe5 Bf7 Nc6 Qd2 Qb2 Qe3 Bd3 Rf1 h1R Rf2 Nb4 Bd2 c1N Rcd8 Nb8 Rd4 Rf1 Nd7 Bb1 Rc4 Ncd3 Re4 Kh8 g7+ Kh7 g6+ Kh6 g8Q Kg5 Qh7 Bh6 Rh8 Qb3 e8R Qd5 R8e7 Qb7 Nc5 Nd7 R4e5 Nf8 Nd7 Bg7 Qh2 Bf6 Rh4 Bg7 Bc1 Bh6 Ba3 Nc2 Bd6 Ncb4 Rc2 Nf2 Qh1 Rc4 Bb8 Nh3 Rf2 Rc8 Qec5 Rc7 Ree2 Bg7 Qe3 Bd4 Qee6 Be3 Qh2 Bc1 Qee3 Bd2 Rh8 Ng1 Qh7 Nh3 Qg7 Qc8 Rh4 Qb7 Qh6#
1Nnn1K1N/1b3B1Q/P3pBP1/3Q2nr/3q4/1bQn2k1/rBB2RRb/B5R1 b - - 0 1 illegal: No possible last move
1Q1n1NnQ/rR1K2Q1/Pqp2R1B/n2B2r1/1kb1P3/n1R1R3/3R4/2N2rbB b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 f5 Kf4 b5 h4 g6 d4 b4 a4 b3 e6+ Kd6 e7 b2 e8R Be7 h6 Be6 a6 Nf6 a7 Bg8 a5 Na6 h5 Nd7 h7 Rb8 a8B Rc8 h6 Bf8 Na3 b1N Nc2 Rb8 Bg2 Nac5 a6 Nb6 Ra3 Be6 Rc3 Rg8 h8R Bg7 h7 Nb3 Rh6 Rb7 Bh1 Nc8 e4 Ra7 Re7 Na5 Ne2 Na3 Qg1 Bf8 Bd2 Bf7 Nc1 Rg7 Kg5 f4 Kf6 f3 Rg8 f2 h8Q g5 Rg6 g4 Bh6 g3 Re3 g2 Rgg3 Rg5 Rg6 f1N Rc3 Nh2 Rge3 Re5 Bb7 Re6+ Kf5 Bg8 Rf6 Nf3 Rh7 Bf7 Ba8 Ng5 Bb7 Ke7 d6+ Kd7 Bd5 c6 Rg7 Qb6 Rh7 Re8 Rg7 Ne6 Ke5 Kd8 d7 Kc7 d8R Ne7 Rd6 Nd8 Rd7+ Kb8 Kd6 Ka8 Rb7 Ng8+ Kd7 Re5 Rgg3 Rg5 Red3 Qb3 Rd2 Qb6 Rge3 Bc5 Qf2 g1R Qg2 Re5 Qgg7 Rgg5 Bc4 Rg1 d5 Reg5 d6 Rf1 Nd4 Bd5 Ba2 Bc4 Ne6 Bd4 Re1 Bg1 Ree3 Be2 Bd5 Bc4 Rc7 Kb8 Nf8 Ka8 Ke8 Kb8 Rcf7 Kc8 d7+ Kc7 Re7 Qb2 Ref7 Kb6 Re7 Kc5 Ref7 Ne6 d8Q Qb6 Qb8 Kb4 Rb7 Nd8 Kd7
2r3RN/Q2Q3N/p2rk1b1/r1Pqr2R/1Pnb4/Q2RN2K/N2N1B2/1B2n1b1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 h4 d5 f4 e5 Kf2 g5 Kg3 e4 b6 e3 h6 a6 c6 d4 f6 d3 b7 d2 h7 g4 h5 e2 f5 e1R c7 Qd5 h6 Ra7 Ne2 Ba3 Nec3 Re5 Bd3 Re7 Rh5 Re1 Na2 Nd7 b8Q Rb7 Qa7 Ke8 f7+ Ke7 f8N Rb3 f6+ Kd6 f7 Rb5 b4 Ke7 c5 Ngf6 Be4 Rg8 h8Q Ne8 h7 Nd6 Qc3 Ra5 h8N Bb2 Nh7 Nc4 f8R Nde5 Qa3 Bf5 c8N+ Ke6 Nd6 Bg6 Nf5 Nf3 Ne3 Bd4 Kg2 g3 Kh3 g2 Bc2 Rg7 Rg8 g1B Be4 Re7 Qda4 d1R Nd2 Re8 Bb1 Rc8 Bb2 Bg7 Bf6 Re2 Bh4 Bd4 Bf2 Ne1 Be4 Qe5 Rb1 Qd5 Rb3 Ng2 Bb1 Ne1 Nc2 Re4 Rd3 Re5 Ne3 Qe4 Nb3 Bb2 Rc3 Rd6 Rd3 Qd5 Nd2 Bd4 Q4d7+
2N1n1R1/5RQP/Q2rPp1b/KbQ3n1/4NBBN/1qr1rR2/3r1nk1/3RR3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 d4 a5 Kd2 g5 Kc3 c5 e4 c4 b4 f6 e6 Kd6 b6 a4 e7 a3 e8N+ Ke7 e5 a2 d6+ Ke6 b7 Kf5 b5 Ke4 Kb4 g4 d5 g3 e6 c3 h6 c2 h5 g2 h7 Qd7 b6 Bh6 Qd3+ Ke5 Rh3 Qf7 d7 Ra7 d8R Qg6 d6 Qg7 d7 Ra8 Nd6 Qf7 Rf3 Ra3 Qa6 Re3 Nd2 Kd5 Rb1 a1R N2e4 Ra2 Be2 Qf8 Bd2 c1R Kb5 Qg7 Rf8 Rcc3 d8R Qg3 Re1 Bd7+ Kb4 Bc6 Rf7 Bb5 Nc8+ Ke5 Bc1 Rd2 Ka5 Qh3 Rf2 Qg3 Nf3+ Kf4 Nh4+ Qf3 Rdd7 g1N Bd1 Nh3 Rd4 Nd7 b8Q+ Ne5 b7 Ng5 Qc7 Ne7 b8R Nd5 Qc5 Rd8 h8Q Rd6 Qg7 Nc7 Be2 Ne8 Rd5 Rb2 Rdd1 Rbd2 Rff1 Kg4 Ra8 Kh3 Rb8 Qg3 Bg4+ Kh2 Rf5 Nd3 Rf3 Nf2 Ra8 Qe5 Rb8 Qd5 Ra8 Qb3 Rb8 Ngh3 Ra8 Bf4 h6 Bg5 h7 Bh6 Rb8 Ng5 Ne7 Nc7 Rg8 Ne8 Nc8 R2d4 Ra7 Red3 Nf5 Kg2 Bf4 Re3 Rf7 Rd2 Nh4#
k1bRb3/4NBnp/q2B2n1/1Rn3PQ/1NrR1b2/B3rQ1P/4Qb2/3KRR2 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 c4 a5 e4 d5 g4 Kd7 g6 Kc7 g7 Kb7 e6 f5 b6 d4 g5 f4 h3 a4 e7 f3 e8Q d3 c6+ Ka6 b7 Ka7 c7 a3 c5 a2 c6 Qd4 e5 Bd6 e6 Nh6 g8R Qe3+ Ne2 Nf7 e7 Bf5 c8R Na6 c7 Qe6 Rb8 Nc5 c8R Bf4 Ba3 Qa6 Nec3 Ne5 Qh5 Ng6 Rgd8 Re8 Nd5 Bg4 Qb3 d2+ Kd1 f2+ Qf3 Bf5 Bd3 f1N Nbc3 Ng3 Bc4 Bg4 Rg1 Nf5 Nb4 Ng7 Rd4 Bf5 Rc1 a1B Rcd8 Bc8 Ncd5 Bb2 Rf1 Bc3 Rd3 Bd4 Bb3 Bf2 Rd4 Rh8 e8Q Rf8 Qe7 Re8 Qee2 Re3 Kc2 d1B+ Kd2 Bd7 Ne7 Bc8 Bf7 Ba4 Rce1 Be8 Kd1 Bg4 R8d7 Bf5 Rbd8 Rc8 R7d5 Be6 b8B+ Ka8 Rf5+ Rc6 Bd6+ Bc8 Qe4 Nce6 Q4d3 Rc4 Rb5 Nc5 Qf5 Bh2 Qfg4 Bf4 Qgf3+
2N5/2B3PB/r1Q1bbN1/N2Q1b2/1nP3B1/RBqk2pn/2R2r1B/rbK2R2 b - - 0 1 illegal: No proof kernel
1R1K4/rbRR1rP1/5Q2/NP4pb/knQn2NR/B2n1B1q/n2bR3/4N2B b - - 0 1 illegal: No proof kernel
1rn1q3/r3r1pB/1RN2RQ1/4R1BK/bR2P1nB/R2bb2r/3NPk2/Q4N2 b - - 0 1 illegal: No possible last move
1b1r1rnQ/1NR3pP/P1B3r1/2Nn2k1/K1bqBbN1/N1BQ3R/b7/N5Q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kf7 Kd2 Kf6 Kc3 b5 Kb3 e5 f4 c5 a4 e4 h4 b4 a6 e3 h6 e2 h5 e1R a7 Qd7 a5 Qe7 h7 c4+ Ka4 b3 a6 b2 d6 c3 h6 c2 d5 Nd7 Bd2 c1B Na3 b1B Rh3 Qe6 Bc3+ Re5 Nf3 Ne7 Nd4 Bb7 Bd3 Bc2+ Nb3 Ng6 Qg1 Rd8 a8B Re8 Be4 Bc8 Bc6 Bd2 Rc1 Rg8 h8Q Bb1 h7 Be1 Na1 Nb8 d7 Ba2 d8Q+ Ne7 d6 Qd5 d7 Bg3 Rc2 Bc4 Rc1 Qd4 Rc2 Kf7 f6 Re6 f5 Nd5 Rc1 Bfd6 Rc2 Kf8 f7 Bb7 Qc8 Ke7 d8N Kf6 f8N Bh2 Qd7 Bdf4 Ng6 Ref8 Ne5 Rd6 Ng4+ Kg5 Rc1 Rg6 f6 Bhg3 Qd6 Nd7 f7 N7f6 Qd7 Bc8 Nb7 Rd8 Qd6 Be6 f8N Bh2 Nd7 Rgf8 Ndc5 Ng8 Qd7 Bb8 Rc2 Bhf4 Qd6 Bc1 Qdg3 Bcf4 Qd3 Ba2+ Bb4 Ndf6 Bcd5 Rfe8 Ncb3 Bf7 Rc7 Rf8 Bc6 Bc4 N3c5 Nd5 Bc3
3n2r1/n4PB1/NPQ3BR/1N1Rn3/2B1K2B/nB1pQ3/1NRq1rr1/4bk1b b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 Kf6 c4 Kg5 f4+ Kh4 b4 g5 b6 a5 b5 e5 c6 d5 c7 e4 c5 g4 h6 a4 c6 a3 h7 g3 f6 g2 f7 a2 b7 Ra3+ Nc3 Qf6 b6 Ra7 f5 Qe7 f6 Qd7 Na4 Ne7 Qe2 Qg4 Nf3+ Kh3 Nd4 Qe6 Nb2 Qd7 Nb5 Rg8 h8B Qd6 Bg7 Be6 c8B Na6 b8N Nc5 c7 Nc6 Na6 Nb7 Qc4 Bf5 Be6 Nbd8 c8B Bg4 Be2 g1R Rb1 Kg2 h4 a1N h5 Rc7 h6 Na7 h7 Bf3 h8Q Rb7 Kd4 e3 Qh6 Nc2+ Kd3 d4 Qc6 Qd7 Bb3 Bb4 f8R Na3 f7 Be1 Qhe6 Rc7 Rh6 Bd5 Bh5 e2 Bg5 Kf1 Qe3 Bh1 Rd1 Rg2 Ke4 Qd6 B5f6 d3 Bce6 Qb4+ Bec4 Qd2 Bg6 Rc8 Rc1 Rc7 Qd6 Rc5 Qc6 Rf5 Bg5 Rff2 Bh4 Nb7 Re8 Nd8 Nc5 Qc3 Bd1 Bd2 Re6 e1N Na6 Nf3 Rd6 Be1 Bdb3 Ne5 Rc2 Qd2 Rd5
3q1n2/3rPp2/1RQP4/R1Bn1N1b/k2Nb1Bn/1b1Q1rb1/B1NRK3/1N3N2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 e4 Kd7 g4 h5 a4 c5 d4 b5 e6+ Kc7 e5 h4 g6 c4 a6 Kb6 g5 Ka5 a7 h3 d6 b4 e7 c3 e8N b3 d5 b2 e6 h2 e7 c2 g7 Ba6 d7 Bc8 g6 Na6 d6 Rh5 Bh3 Qc7 d8N Rg5 Qd3 Nc5 Nf3 Re5+ Be3 c1N Nc6+ Kb6 a5+ Kb7 a6+ Kb6 Nfd2 Bb7 Ra2 Rg5 Nd4 Nh6 g8N Nf5 g7 Nd7 Bg4 Qd8 Nef6 Nh4 Nf1 Rf5 Nh6 Ne2 g8R Bf3 Rg5 Nf4 Nd5+ Kc5 Kf2 Bg7 Nb4 Nd5 Nbc2 Be5 Ke1 Be4 Ke2 Rf3 Nhf5 Bg3 Rg1 Rc8 a8B h1B a7 Rc7 Rg2 Nf8 Ra6 Rb7 Rb6 Rd7 Rh2 Bg2 Bb7 Bh1 a8Q Bg2 Ba6 Bh3 Bc4 Bg2 Nc3 b1B Rh5 Ba2 Nb1 Bb3 Qa6 Ba4 Ba2 Bh1 Kd1 Bb3 Rd2 Bg2 Ke2 Ba4 Rb2 Bb3 Qa4 Kb6 Qc6+ Ka5 Rg5 Bc4 Rb6 Bb3 Nb5 Bh3 Bc5 Ka4 Nbd4+ Ka5 N5e3 Rf4 Bf3 Bg4 Ba3 Bh5 Bg4 Rf3 Re5 Nfg6 Nef5 Nf8 Qc5+ Ka4 Qcc4+ Nb4 Reb5 Qb8 Qc6 Nd5 Bc5 Qd8 Ra5+
3kr1N1/1b2p1r1/4QQ2/rQ3QBK/n1RRbQ2/4PrR1/1P1b2B1/1BN1nq2 b - - 0 1 illegal: No possible last move, all moves rejected
Q1qQ1B1b/1R1PP1rb/N2Qpk1b/2N1N3/4Q3/KB1nrrB1/nQ1b4/7R b - - 0 1 illegal: No proof kernel
N1QkBBN1/r2p3Q/1BbP3B/6rn/n7/nrP1R2Q/3B1K1b/q1rR1R2 b - - 0 1 illegal: No possible last move
1b2bB1Q/bqP2Q2/1nRN1n2/R2P3p/2n1BQ2/2kB1n2/1RrrQ1Q1/6NK b - - 0 1 illegal: No proof kernel
1R2b1n1/bbPpN1K1/1Q6/P6k/2nRR2Q/1qN5/1QQrB2n/1rB1n1QB b - - 0 1 illegal: No possible last move
b3QR2/Qrpb3B/P2Q1B1R/4n1Pb/N1q1Q2N/2rB4/4N2b/kr1Q1n1K b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 f4 h5 Kf2 b5 a4 e5 g4 e4 Kg2 e3 a6 e2 d6 e1R a5 b4 d5 h4 a7 b3 d7 b2 g6+ Kf6 d6 Ne7 a6 Qe8 d8Q Nd7 g5+ Kg7 f6+ Kg8 g7 Kf7 f5 Nd5 Bd3 Qe6 Ne2 Rb8 a8Q Rb7 Nbc3 b1B Bb2 Ne5 d7 Bd6 Qa7 h3+ Kh2 Rh6 Na4 Ne3 Qh8 Rh7 d8Q Bd7 Qda8 Qc4 Rf1 Rh4 Kh1 h2 Qh6 Rh3 Ra2 Rb3 Qe4 Rb7 Ba1 Bc2 Rb2 Rf3 Rb6 Rg3 Qb1 Bd1 g8B+ Ke8 f7+ Ke7 f6+ Ke6 Bh7 Rh3 Qf5+ Kd5 f8Q Rg3 f7 Rf3 Rg1 Nf1 Qe8 Rg3 f8N Rh3 Nc1 Bh5 Ne2 Rc1 Qc2 Rb1 Ng6 Rg3 Nh4 Rh3 Nec3+ Kd4 Qd1 Rf3 Rg2 Re3 Rf2 Rf3 Kg2 h1B+ Kg1 Rh3 Ne2+ Ke3 Qeg6 Nc6 Rf4 Rb8 Qe8+ Be5 Qb3 Kd2 Bc2 Re3 Bd4 Rc3 Bd3 Be4 Rf3 Bh2+ Kh1 Bd5 Bh8 Ne5 Qe4 Ba8 Rf8 Rb7 Qhc6 Bdg4 Qc5 Bh3 Rh6 Bd7 Nf4 Kc1 Bf6 Be6 Qd6 Bh3 Nb6 Bd7 Qd1+ Kb2 Ne2 Ka1 Na4
n1K1Q2B/8/Q2NB3/krbr2Q1/1b1RBB1b/p3nNR1/1PP1B1Rq/1q3b2 b - - 0 1 illegal: No proof kernel
1bR1b1N1/1Q1r1qRn/4k3/RQ5N/4BQ1P/2Q1KPBb/r1QnB1p1/1bq5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 a4 b5 h4 d5 c4 e5 h6 g5 h7 d4 f6 e4 c6 d3 f3 b4 a6 b3 a7 g4 a5 b2 a6 g3 c7 Nh6 c5 Ng4 c6 Qd5 Ra5 Bb4+ Nc3 b1B Ne2 Be6 c8R Bc5 c7 Bd4 Qa4 Qh5 Nd5 Be5 Rg1 Rd8 h8Q Nc6 Qb5 Nd4 Ne7 Rd7 Ng8 Qg6 Nf4 e3+ Kd1 d2 Nh5 Nb3 Ke2 Bf4 Ba3 Bef5 Bd6 Ke6 f7 Nf6 f8Q Nh7 Qc3 Bh3 Qc2 Be5 Qf4 Qf7 Kd3 d1B Be2 Nd2 Rg2 Rb8 a8B Rb6 a7 Ra6 Ra1 Ra2 Be4 Bc3 a8Q Be5 Bf1 e2 Qab7 e1Q Be2 Qf1 Ke3 Qh1 Qc3 Bb3 Qc2 Qc1 Rg1 Ra6 Ra5 Ba4 Rd8 Ra7 c8Q Ra8 Q8c3 Ra7 Bc5 Bb8 Bd6 Ra8 Rc8 g2 Rh1 Bf5 Rh3 Ra7 Rg3 Bh3 Rg7 Ra8 Qbb4 Bc6 Q4b5 Ra6 Ra1 Ra2 Be5 Rd5 Bd6 Be8 Bc7 Rd7 Be5 Rb2 Ra5 Ra2 Qg5 Qe1 Bg3 Qc1 Qf4
1bR3b1/1Q2BR1R/4N2K/1q3Pr1/2Pn2B1/2p1RQ1Q/n2R2rq/Nk1bB2b b - - 0 1 illegal: No proof kernel
1BNN3k/2r4b/6P1/2b3qB/rQ2nB1N/b2R1q1b/n1P1pN1Q/1NR1K1Q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 b4 Kf7 f4 Kg7 g4 h5 c6 a5 f6+ Kh7 b6 e5 b5 d5 c7 h4 b7 d4 b6 e4 f7 e3 f5 d3 f6 h3 Nf3 a4 Ra3 h2 Be2 Qd5 Nh4 Nc6 b8Q Bc5 f8Q Nb4 b7 Na2 f7 Nf6 Rb3 Bd7 c8N a3 Qfd6 Rd8 f8N+ Kh8 g6 Ra4 g5 Bh3 Bh5 Ne4 Ne6 Rd7 Nd8 Rc7 Qb6 e2 Bf4 Qe5 Rg1 h1B Qb4 Qf5 Rc3 Qg4 Qc1 Qf3 Qe3 B1g2 Rh1 Bf5 Qg1 Bgh3 g7+ Kh7 g8N Kh8 Qa8 Bh7 b8B Nc1 g6 a2 Qba5 a1B Qb4 Na2 Nh6 Bb2 Ng4 Ba3 Nf2 Qg2 Qf1 Nd6 Kd2 Qg5 Qag2 Ne4+ Ke1 Bd4 Qh2 Be3 Rc5 Bd4 Rd5 Bc5 Rd4 Nd6 Kd2 Ne4+ Ke3 d2 Qfg2 Ra5 Rc1 Ra6 Qgg1 Ra4 Ng4 d1Q Kf3 Nd6 Kf2 Qd3 Ke1 Qf3 Rd3 Ne4 Nf2
K5NQ/1R2Q1Rr/2N2P2/3P1p1B/1n2bb2/4qRBb/BQk4r/Bbqn1B2 b - - 0 1 illegal: No proof kernel
7N/4nQ1B/q1B1P3/2Bq4/1pBb2NR/Q1NrqBKP/1n4br/2kq1RQ1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 e4 b5 d4 g5 a4 f5 a6 c5 d6+ Ke6 d5+ Kf7 a7 f4 d7 c4 d6 Ke6 h6 c3 h7 b4 a5 g4 a6 c2 Nc3 f3 Be3 c1Q Nh3 Qb2+ Kg3 f2 Bc5 Qa5 d8Q Qc2 d7 Bg7 Qf8 Ne7 d8Q Bb7 Q8d3 Nd7 Qf4 Rae8 a8B Rd8 a7 Nb6 Q3f3 Rd5 Bc4 f1Q Nf2 Na4 Qdc1 Qfe2 Qg1 Nb2 Rf1 Qcd1 Qc1 Bf6 Qa1 Bc6 Qa3 Qe3 Bb7 Qa6 a8B Qed4 Kg2 g3 Ng4 Qe3 Kh3 g2 Kg3 Kf7 e6+ Kg6 e5 Kg5 Bc8 Rd3 Bd7 Qe4 Be8 Qd5 Bg6 Rb8 h8N Rb6 Qf2 g1Q+ Qg2 Rb5 Bh7 Qe3 Qg1 Ra5 Qb3 Ra2 Qa3 Nc8 e7 Bb7 e8B Ne7 e6 Bd4 h3 Bc6 Kh2 Bb7 Qf7 Bc6 Rf6 Bb7 Rh6 Bc6 Bf5 Kf4 Rh4 Bb7 Bc6 Kf3 Na4 Ke2 Nc3+ Kd2 Be4 Kc1 Bh7 Qd7 Bf3 Be4 Bc6 Qd5 Be2 Bf3 Kg3 Bg2+ Bf3 Bf1 Qb3 Na4 Qg2 Rf2 Qa3+ Nb2 Rg1 Re2 Qf2 Rc2 Qe1 Rh2 Qf2 Bg2 Rf1 Qd7 Qg1 Qd8 Bg8 Qd5 Bh7
1bN1nR2/1n3kq1/P1BQN3/1rR2rP1/1nQ1NB2/3nK3/Q1qB2pQ/1Q3b2 b - - 0 1 illegal: No proof kernel
3B1rNK/RQq1B1NP/n3Rb2/1B1N2n1/B5nq/pQR2Bk1/bnP5/1r6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 h4 Kg4 e4+ Kg3 b4 d5 h6 g5 h5 f5 e6 a5 Ke5 a4 c6 g4 e7 f4 e8N d4 b6 d3 h7 d2 b5 f3 c7 f2 b7 Bd7 c8B Ra6 h6 Rb6 Ng7 Nf6 Ba3 Bf5 Nc3 Bb4 Nf3 Be6 Nd5 Na6 b8R Re8 h8B Bc5 h7 Be7 Nh2 Bf5 Qb1 d1N Qb3+ Kh4 Bb7 g3 Rc8 g2 Rc3 g1N Ng4+ Nh3 Nh6 Rd6 b6 Nc7 Ng8 Bd7 Bb5 Kg4 Re1 f1Q Ba8 Qe2 b7 Qd2 b8Q Rf8 Qb7 Rb6 Bd6 Qc8 Ra3 Bd8 Be7 Na6 Ra1 Qc4 Ra2 Bc6 Ke6 Qh2 e5 Nb2 Ree3 Re8 Kf7 Ng5+ Kg6 Qh4 e6 Rf8 Re1 Bc7 Bd8 Bd7 e7 Be5 e8B Qc7 Raa1 Bd4 Re7 Bc6 Rae1 a3 R1e6 Be5 Ba4 Bb5 Bd7 Bf1 Bdb5 Bc4 Nf5 Rd6 Nf4 Rd7 Qc8 Be2 Kg7 Bd4 Qa2 Qc5 Bg2 Rd6 Ra7 Bc4 Qb7 Be5 Be4 Rd1 Nd5 Rb1 Bf3+ Kh3 Qb3 Qc8 Qb4 Ba2 Qb3 Ng4+ Kg6 Ne4 Bhf6 Ng5 Kg7 Qc7+ Kh8 Bd4 Ng7 Kg3 Bfe7 Be5 Nb4 Bf6 Nd5
K2N3N/N1N3Pb/Q2r3B/bB1Prp2/1rRq2kq/n6Q/2Rr3R/NB4n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 d4 h5 g4 h4 b4 a4 e6+ Ke7 b6 f6 b5 c4 d6+ Ke8 Kd5 a3 e4 h3 d7+ Ke7 b7 h2 g6 f5 b6 Kf6 g7 a2 e7 c3 e8B c2 g5+ Ke7 g6 Kf6 e5+ Ke7 e6 Kf6 e7 Ra7 Nh3 Rh4 Qd3 Rg4 Nd2 Ra4 Nf4 Kg5 Qh3 Rg3 Nb3 Re3 Bd3 Na6 Kc6 Nc7 b8R Ra6 d5 Nh6 g8Q Nb5 g7 Na3 Ng6 Ng4 Nh8 Nf2 Qe6 Ra4 b7 Rb4 Rb1 a1Q Rb2 Kf4 Ra2 Qd4 Na1 Kg5 Bd2 c1R+ Rc2 Rd1 Ra8 Kf4 b8N Kg5 Bc1 Rd2 Ra4 Re5 Qd6 Qa5 d8N Be6 Bd7 Bg8 e8N Bh7 Nc7 Qh4 Qe6 Qa7 Be8 Bc5 Qc8 Bd6 Qa6 Qad4 Be4 Bc5 Bd7 Bb6 Kb7 Kh5 Bb5 Ba5 Nbc6 Kg5 Ka8 Kf4 Qc3 Nh3 Na7 Ng1 Qe3+ Kg4 Qc3 Rb2 Rc4 Rb4 Qb3 Rd1 Bh6 Rd2 Rb2 Nh3 Rhc1 h1R Bb1 Ng1 R1c2 Rh3 Ra2 Rhe3 Qc3 Re6 Qd3 Rd6 Qf1 Re5 Rab2 Rd3 Rh2 Rd1 Rbc2 Rd2 Qh3+
rBNK1NRN/nB1Q2p1/6b1/rbq2kN1/R4P2/2R2P2/bb2NBQ1/1q5n b - - 0 1 illegal: No proof kernel
1b1B4/nqR2Pr1/4B3/2N4n/n1QKR1P1/NNQNR2k/1pQN2rn/1b2q3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 b5 a4 h5 d4 c5 f4 e5 g4 h4 f6 Kg6 a6 h3 f7 c4 d6 h2 d5 c3 d7 c2 f5+ Kg7 f6+ Kg6 d6 b4 a5 e4 a7 b3 a6 b2 Nf3 Qe8 d8N Bg7 d7 Bf8 Ra3 Bd6 Ne6 Bb7 d8N Qd7 Nf4+ Kh7 g6+ Kh6 f8N Qg7 Bc4 Bc7 Kd4 e3 Nc6 e2 Na5 e1N Re3 Be4 Nfd2 Kg5 Nd3 Kh4 Na3 Rh7 Rf1 h1Q Nd7 Qg1 Be6 Nc6+ Kc5 Re8 a8Q Bg3 a7 Nf3 Re1 Nh2 Nab3 Kh3 Qc8 Qf1 a8Q Na7 Qac6 Qg1 Re2 Qe1 Kd4 Rf8 N7c5 Qb7 Qb5 Rg7 Qc4 Bf5 Re4 Bb8 f7 Nf6 Qc7 Nh5 Qa5 Rc8 Qac3 Rh7 g7 Rc6 g8R Rg7 Nf3 Bg6 Bg5 c1N Be7 Na2 Bd8 Rc8 Qdd2 Bf5 Qcc2 Nc3 R2e3 Na4 Qdc3 Rc6 Bd5 Rf6 Be6 Bg6 Nfd2+ Rf3 Rh8 Rg3 Re8 Bf5 Re7 Bh7 Re2 Rg2 R2e3+ Kh4 Qb1 Bf4 Nb4 Bd6 Rf4 Bc2 Nbd3 Bb8 Qc1 Bb1 Rfe4 Ng3 Q1c2 Kh3 Re2 Nh5 Rc7 Qh1 Re1 Qf1 R1e2 Qe1 R2e3+
3K2nR/B3p3/1NR1r1R1/nPr4N/1PB2q2/2BRQ1Q1/1q1Nk1r1/rRb4b b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 g5 d4+ Kb4 h4 c5 f4 a5 f6 g4 f5 a4 d6 a3 d7 a2 Ke6 g3 d5 g2 f7 c4 f6 c3 d6 c2 h6 Ra3 h7 Qb6 h5 Qf2 h6 Na6 Ne2 Kc4 b4 g1R Nd2+ Kd3 Nf4+ Ke3 Nh5 Qf3 Bc4 Rg6 Qe2+ Kd4 Rb1 a1R Rg1 Bg7 f8N Qd3 Qe3+ Kc3 Kf7 Nb8 Ke8 Na6 d8R Rg4 f7 Rg2 d7 Bb7 Rc8 Nc5 d8R Nb3 Nd7 Ra6 f8Q Re6 Nb6 Na5 Rc6 Ba8 Qg3 Qe3 Qff4 Bf6 Rd4 Bg5 Kd8 Qf3 Qe4 Be3 Rdd6 Qf4 Rd1 Re5 Rg6 Re6 Ba3 c1Q Qef3 Qc2 Bc1 Qb3 Bb2+ Kc2 Bd4 Qb2 Bc5 Bf2 Qe3 Be1 Nb3 Bd2 Bd4 Bc1 Rd3 Bb7 Nd2 Kd1 Nc8 Ra2 Ba7 Ra1 Nb6 Rg1 Rc5 Bh1 Rc6 Rg2 Ng7 Nf6+ Ne8 Rf8 h8B Rf7 h7 Ng8 Ng7 Rf5 Nh5 Rg5 Bc3 Rc5 Qd4 Ke2 h8R Rf5 Qg1 Rc5 Q1e3+
BQ1K2Qn/3PN1B1/PR2qBB1/2b1p3/2b4b/5n2/N4Qqb/NRrrB2k b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 b5 a4 c4 h4 e6 h6 b4 h7 c3 h5 b3 d6 b2 d5 c2 h6 g6 Qf3 Nd7 Nc3 b1Q Bd2 c1B Nge2 Ne5 Nd4 Qc2 Bd3 Qd7 Nb3 Rb8 Rb1 Ne7 Na2 Rg8 h8N N5c6 h7 Qc3 Rh6 Rg7 Na1 Ra8 Kg4 Ke5 Kg5 Ra7 f6 Rg8 f7 Kd4 Kf6 g5 Ng6 g4 h8Q Rg7 Qg8 e5 Qe2 g3 f4 g2 f5 g1B Bc2 Qd3 Qf2+ Ke4 Bb4 Ba6 Bc3 Qd8 Ke6 Bb2 f6 Qe8 d7 Ba3 d8B Bc5 d6 Bh2 Bb4 Rb7 Bd2 Rb4 d7 Rc4 Bb4 Bb6 Bd2 Nd4+ Kd6 Bc5+ Kc7 Nc8 Bb4 Bfe7 f8B Nd6 f7 Bh4 Bg5 Qa8 Ne7 Qb7+ Kd8 Bb5 Bb3 Rc1 Bc2 Ba6 Re6 Qc6 Bf6 Rgg1 Bc3 Rgd1 Be1 Qd5 B8g7 Qb3 f8Q Nf7+ Kc7 Nh8 Rb6 Qe6 Qb8 Bb5 Kd8 Bc4 Qg1 Kf4 Qf2+ Qf3 Bg6 Kg4 a6 Kh3 a5 Qfg4 a7 Nf3 Qd4 Kg2 a8B Kh1 a6 Qg2 Qf2
2Q2n1q/bP1R4/k4rN1/7n/1RPQ1B2/2RRqN2/1KpR2B1/rbBN2rr b - - 0 1 illegal: No proof kernel
2N1N2b/pB1nB3/K1nQ3Q/1BRR3B/1B1r1r1q/Pqr1Pb1R/N2k4/6r1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 fxe5 Bf5 cxd5 Nh6 b4 Ng8 bxc5 Bc8 h4 Kd7 d4 b5 Kd2 g5 Kc3 f5 Kb4 f4 a3 f3 e3 f2 h6 g4 d6 Kc6 e6 Kd5 h5 Ke4 h7 g3 h6 g2 e7 Qd7 Ka5 b4 e8B b3 d5 b2 c6 Qf7 c7 Ba6 c8B Qf3 d7 Qg3 d8R Bd6 Bd2 Bb5 Nc3+ Ke5 Ne4 b1R Bb7 Qh4 Rh3 Kf5 Bh5 Na6 Bb4 Nb8 Ne2 g1Q Nf6 Be5 d6 Qh2 d7 Ne7 Nc3 Be2 Na2 Bf3 Bb5 f1R Ne8 Qc2 Qd6 Qb3 Rc8 Rfd1 d8B Nd7 Rc5 Rf8 h8Q Nc6+ Ka6 Ke4 h7 Rd4 Be7 Rg1 Rd1 Rf4 Qf8 Bg7 h8N Rc8 Nf7 Bh8 Qfh6 Rc7 Ne5 Rc8 Nc4 Rc7 Nb6 Rc8 Rdc1 Rc7 R1c4 Kd3 Rc3+ Kd2 Rd5 Nce5 Rc1+ Rc3 Nc8 Nc6 Re1 Rgg4 Rg1 Rg8 Rgg5 Rg7 Rge5 Rg2 Rc5 Rg1 Red5
R7/1P3Nk1/K1n5/2Q1q3/bBRN3B/1QQ1nQ1p/1qrbB1QP/b2qn1R1 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nh6 axb3 Nf5 b4 Nh6 b5 Ng8 f4 a5 f7+ Kd7 g5 Ra6 f5 Rf6 gxf6 Bb7 Qb3 Ba6 Qd1 Bc8 Ke2 c5 Kd3 g5 Kc4 e5 d4 h5 b4 g4 b6 a4 Kb5 a3 b7 c4 d6 h4 d5 e4 Qd2 e3 Qc3 h3 Bd2 a2 Ne2 g3 Nd4 g2 Rg1 e2 Na3 e1N Rc1 a1Q Be2 Nc6 b8Q Bg7 f8Q Nf3 f7 Qc7 f6 Nge7 Qg8 Qa2 f8Q Qb3 f7 Be5 Qb7 Bf4 Ka6 Qb2 b5 Nf5 b6 Be5 Nab5 Ne3 Qfg7 Ne1 f8Q+ Ne7 Qg3 Nc6 Qgf3 Rh6 Qgg3 Bh8 Q8f5+ Ke8 d7+ Ke7 d8R Bd7 Ra8 Qe5 Qb3 c3 Nd6 c2 Nf7 Bg7 Qc8 Rh8 Qc7 Rc8 b7 Kf8 d6 Bf6 Qgf2 Kg7 Bb4 Be8 Qa5 Rc7 d7 Rc8 Rb1 c1B d8B Bd2 Rc1 Bd7 Rc4 Be8 Rh1 g1Q Qc5 Qf1 Qfd3 Bd7 Qdc3 Be8 Bd3 Qe2 Rf1 Qd1 Be2 Qf4 Qc1 Na7 Qg5+ Kh7 Q2g2 Qc3 Rg1 Ba4 Nb5 Bd4 Qe7 Qe5 Rc6 Qcc2 Rc5 Ba1 Nd4 Qb2 Rc2 Rc3 Qc5 Nc6 Bh4 Rd3 Rc4 Rc3 Ng5+ Kh6 Qcc2 Kg7 Qd3 Rc1 Qdc3 Rc2 Nf7+
QRB3N1/4KR1p/r2QnBqn/4P2P/2Bbq1Rb/kb5Q/1RR1N1n1/4q3 b - - 0 1 legal: proof: f4 d5 c4 e5 cxd5 f5 fxe5 b5 a4 a5 axb5 f4 g4 Ra6 Nh3 Rf6 Ng1 Rf5 gxf5 Qg5 Nh3 Qe7 Ng1 Qd8 Kf2 Ke7 Kf3 g5 Kg4 c5 d4 c4 b4 f3 h4 f2 e4 c3 d6+ Kd7 e6+ Ke8 b6 c2 d5 a4 h5 a3 b7 a2 d7+ Ke7 e5 Na6 b8R Nc7 b5 Bh6 b6 Qf8 b7 Qe8 d8Q+ Kf8 d6 Bd7 e7+ Kf7 Qd3 Na6 Qh3 Ba4 d7 Nc5 f6 Ke6 f7 Kd5 Kf5 g4 f8R g3 Nd2 g2 Ne2 g1Q Rf7 Bg5 Rh2 Qg2 Ne4 Kc4 Nf6 Bh4 Bg5 Kb4 Rd1 Bb3 Rd4+ Ka3 Rg4 a1B Qa5+ Na4 d8Q c1Q Qa8 Bd4 Qc7 Qec6 e8B Qe1 Bd7 Qgd5 Bc8 Nh6+ Kf4 Re8 Ng8 Qg6 Bf6 Re6 Qd8 Ra6 Qd6+ Nc5 Rhg2 Qd3 Rh2 Bg3+ Kg5 Q5e4 Bg7 Qdb1 Kf6 Qbc2 Ke7 Bh4+ Bf6 Qg6 Nf4 Qce4 Bc4 f1N Rc2 Ne3 Ne2 Ng2 Qa7 Kb4 Ra8 Rc6 Qab8 Rb6 Raa2 Ra6 Rab2 Ka4 Qa8 Ne6 Qd5 Kb4 b8R+ Ka3 Qd6+
1r1BK1nb/QrbQB3/1B2Pb2/qpR5/6b1/RPQ2r1B/4N2b/N1BN3k b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Ne7 fxe5 Ng8 a4 Nd7 a5 Nb6 axb6 Bf5 Qb3 Bd7 Qd1 Bc8 Kf2 Ke7 Kf3 f5 Kf4 a5 Kg5 c5 Kg6 c4 e4 a4 d4 c3 h4 c2 b7 a3 b8N f4 h6 a2 b3 f3 h5 f2 d6+ Ke6 d7 Bd6 h7 Nf6 d5+ Ke7 h6 Ng8 e6 Qa5 d8B+ Ke8 e5 Qa3 e7 Bb4 d6 Ra7 Nc3 Qa5 Qd4 Rb7 Nd1 Bg4 Nc6 Kd7 Kf7 g5 Ne2 Bc3 Bh3 f1R+ Qf2 Bd4 Bb6 Bc3 Kf8 Ke6 e8Q+ Kd5 d7 Ke4 e6 Bf6 Qg1 Kf3 d8B Rf2 Qd7 Rf1 Nb4 Rf2 Bce3 c1B Ke8 Ba3 Nc2 Bd6 Rc1 Bc7 Na1 Rf1 Rc5 Rf2 Nc2 a1B Bc1 Bac3 Na1 Rf1 Qgd4 Bb2 Nec3 Kg3 Rg1+ Kh2 Ne2 Rf3 Rg2+ Kh1 Qa4 Qc3 Qa7 Qa5 Rf2 Bf5 Be7 g4 Bd8 g3 Be7 Rc3 Rf4 g2 Ra4 g1B Ra3 Re3 Qd4 Bfe5 Qd7 Be4 Kf8 Bf3 Bg5 Nf6+ Kf7 Rd8 h8Q Bg4 h7 Ng8 Be7 Rdb8 Bd8 Bgh2 Ke8 Bed4 Qf6 Bbc3 h8B Rf3 Qe5 Bb2 Bf6 Bdc3 Be7 Bd4 Qed6 Bh8 Qd2 Bbf6 Qc3
Kn5N/3qP2k/b1NN2q1/Q1r2Bq1/q2p4/q1BP3N/R1Q2nN1/2R1Q1bR b - - 0 1 legal: proof: g4 e5 a4 b5 b4 a5 c4 h5 gxh5 e4 c5 e3 c6 Be7 fxe3 Ba6 e4 Bb7 axb5 a4 b6 Bc8 b5 Ra7 e5 Rb7 cxb7 Bf8 Kf2 c5 Kf3 f5 e4 Kf7 h4 g5 d3 Kg7 e6 d5 h6+ Kh7 h5 d4 e5 f4 Ke4 f3 e7 f2 e8Q g4 e6 c4 Bb2 c3 Qc2 a3 Bh3 f1Q Nd2 g3 Rc1 a2 Ndf3 a1Q Ne1 Qh4+ Kd5 Qa8 Ng2 Nc6 b8N Ba3 b7 Qe7 b6 Qef7 Bf5+ Qg6 Nh3 Ne5 Nc6 Qa4 b8Q Ng4 b7 Nf2 Qe5 Bd6 b8R Ba6 Ra8 Qe2 e7 Qg4 Qd8 Qg5 Qa5 Nf6+ Ke6 Rc8 Qe1 Nd7+ Kd5 Nb8 Ba1 Kh8 h7 Qe8 Bb2 Qd7 Ba1 Kg7 h8N Bf4+ Kc5 Be3 Kb6 Qg6 h6+ Kh7 Nf7 Rc7 Ngf4 g2 Nd6 g1Q Bb2 Qg5 Ng2 Ne4 Ra7 Bg1 Ba1 Nf2 Bb2 Kg8 h7+ Kg7 h8N Kh7 Rb7 Rc8 Ka7 Rc7 Ka8 Rc8 Qb1 c2 Ra7 Rc7 Bc3 Rc8 Rd1 c1Q Qc2 Qca3 Rc1 Rc7 Rb7 Rc8 Rb2 Rc7 Ra2 Rc8 Ne5 Rc5 Nc6
5q2/RRbQP1n1/1NR4Q/1K2NB1k/4R1b1/QRrpNrBb/3P3q/q6b b - - 0 1 legal: proof: h4 e5 b4 g5 hxg5 b5 a4 e4 axb5 Na6 b6 e3 b7 Ke7 c4 Nh6 c5 Ng8 b5 Nb4 fxe3 Ke8 e4 Nd5 e5 Nb6 cxb6 Qe7 Rh4 Qf6 Rh1 Qd8 b8N d5 e4 c5 Ke2 a5 Kd3 f5 g4 Kf7 e6+ Kg6 b7 h5 b6 d4 Kc4 f4 e5 d3 e7 f3 e8R h4 e6 h3 Bb2 h2 Bh3 f2 Qa4 f1B Nd7 Qf6 b8R Rh6 b7 Be2 Nb6 Qf5 Kb5 c4+ Be5 c3 Qa3 c2 Nf3 c1Q Nc3 a4 Nd1 Ne7 Ne3 Qc3 Rhc1 Qe4 Bg3 Qf6 Rc6 h1B Ne5+ Kh7 Ra2 Qg2 g6+ Kg7 g5 Qh2 Bf5 Bg4 Ra1 Rh3 Ra2 Nd5 Ra1 Bd6 Ra2 Bc7 Re7+ Kg8 g7 Qf8 Ra1 Bd7 Rbe8 Rd8 b8R Nf6 Rb1 Rc8 Rb7 Nh5 Rb3 Rd8 Rf7 Bc8 Rfe7 Rd4 Rd7 Rc4 Ree7 Rc1 Rd4 Rc4 Re4 Rc3 Rd7 Rc1 e7 Rc3 Be6+ Kh7 g6+ Kh6 g8Q Kg5 Bf5 Ng7 Qd5 Kh5 Ra7 Bd8 Rdb7 Bc7 Qac5 a3 Qd7 a2 Qa3 Ne6 g7 a1Q g8Q Ng7 Bf2 Rf3 Bg3 Qf6 Qgd8 Qf8 Qdd6 Be6 Q8d7 Bh3 Bh7 Beg4 Bf5 Qf1 Q6e6 Qa1 Qh6#
2Qrnq2/2B1pB2/KN3bn1/1Qq1P3/1QPR4/Q5RQ/1N1R1rrr/B4q1k b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 Bg7 g4 Qb6 g6 Bb7 h3 Bf3 g5 Bg4 hxg4 Qd8 Qd3 Bh6 Qd1 Bf8 Kd2 h5 Kc3 f5 Kc4 a5 e4 a4 b4 d6 e5 Kd7 g7 Ke6 c6 h4 c7 h3 c8Q+ Nd7 b6 h2 Kb5 f4 b7 a3 b8B f3 g6 a2 g5 Kf5 Qe2 Kg4 Nc3 Kg3 Nd1 f2 Nb2 d5 Nf3 d4 Bc7 d3 Nd2 Rh5 Ndc4 d2 Nb6 Rb8 Ka6 d1R b5 Ngf6 g8Q Rd6 g7 Ng4 g6 Rh3 Qe6 Rd1 g8Q Ngf6 g7 Ne8 Qf5 Rd3 Qb3 Rf3 g8R+ Bg7 Qa3 Nf8 Qe1 Qd5 Qeb4 Qc5 Bc4 Kg2 Rd1 h1Q Bf7 f1Q c4 Ng6 Rd4 Rh2 Qh3+ Kg1 Bd2 Rff2 Bc3 Bf6 Rad1 a1R R1d2 Qf3 Rg7 Kh1 Rg8 Nh4 Rg3 Rd1 Nd5 Qf5 b6 Ng6 b7 Ra1 Nb6 Ra2 N2a4 Qf4 Ba1 Qh6 Nb2 Qf8 Qd8 Rc8 b8Q Rg2 Qdd7 Rd8 Qdb5 Rf2 N2a4 Rb2 Qbc8 Rc2 Nb2 Rg2 Rd1 Rcf2 R1d2
4n2Q/1bb1N3/4p2K/4B1B1/k2nPnPB/BN1N1B1R/rR1qQ3/1nqq1Q2 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 a5 cxd5 g5 f4 g4 f5 g3 hxg3 Nf6 g4 Ra7 g5 Ng8 g3 Ra6 g4 Rg6 fxg6 Qd7 Rh5 Qd6 Rh1 Qd8 Kf2 Kd7 Kg3 c5 Kf4 f5 e4 h5 d4 c4 b4 h4 b6 c3 d6 Kc6 d7 c2 b7 a4 g7 h3 b5+ Kb6 d5 Ka5 g6 a3 Kg5 a2 b6 f4 d6 f3 Nd2 h2 Ba3 c1N Nb3+ Ka4 Ne2 f2 Bg2 f1N Bf3 Ne3 Qf1 Rh6 Nf4 Nc2 Nd3 Nf6 g8N e6 g7 Rh4 Rb1 a1Q Ne7 Ne2 g8Q Nc6 b8Q Nf4 b7 N6d4 Qh8 Ne8 Rb2 Qc1 Qc7 Bg7 b8B Be5 Qb6 Bb7 Qa6+ Qa5 d8B Rh7 d7 Bc7+ Nd5 Rf7 Kh6 Rf8 Ne7 Qd1 Qd6 Qad2 Qe2 Rf5 Qa6+ Ra5 Qf1 Bb6 Be5 Bc7 Nc8 Q1c1 Bg5 Qcd1 d8B Q1c1 Bc5 Na3 Ne7 Nb1 Ba3 Qcd1 Rg1 Q1c1 Rg3 h1Q+ Rh3 Qg1 Qe2 Qgd1 Qa7 Nc6 Qaf2 Nd4 Qff1 Kb5 Bc5 Ra2 Ba3 Ka4 Bh4 Nc2 Ng6 Nd4 Bdg5 Qe3 Ne7 Qf2 Qe3 Qfd2 Qee2
Q1B3qB/1N2Pr2/bp1RRQ1b/1q2NN2/nPBK4/4Br1q/Q3q3/1b1kB3 b - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 h3 a5 b6 a6 Nd7 gxh3 Rh6 h4 Nc5 h5 Nb7 axb7 Rh8 Kf2 Kd7 Ke3 a5 b8Q f5 b4 g5 d4 c5 h4 c4 d6 Kc6 d5+ Kb5 e6 c3 d7 Kc4 h6 g4 d6 g3 h7 g2 h5 a4 e7 c2 e8B Kb3 h6 f4+ Kd4 a3 e4 a2 e5 f3 e6 f2 Nf3 g1Q Be3 Ra5 Qd2 c1Q Nc3 Ba6 Nd5 Qg2 Ne5 Ne7 Qa8 Qdc8 d8Q Qh3 d7 Q1c6 Re1 Ra3 Rd1 Rg8 h8B Qb5 h7 Rg7 Bg6 Qc2 Bf5 Rf7 Bc4+ Kb2 Bg4 a1Q Rhe1 f1B Bf6 Bd3 h8B Rb3 Bh4 Bh6 Re2 Qa3 Be1 Qa2 Qf8 Rc3 d8N Bf5 Nb7 Ra3 B3f2 Rf3 Ne3 Nd5 e7 Nc3 Qg7 Be4 Bc8 Na4 Nf5 Qb3 Re3 Bd3 Qe2 Qa2 Rd2 Kc1 Qf6 Qd1 Re4 Bb1 Rd3 Qab3 Qa2 Qe2 Rd2 Qg3 Be3 Qg8 Ng6 Qa3 Re6 Qb3 Rb2+ Kd1 Ne5 Qh2 Rg2 Qc2 Rd6 Qe2 Rg6 Qh1 Qg5 Qh5 Rge6 Qh3 Qf6
NNb3nR/7B/1K1Nk3/3pB3/qb1Q1PNb/1R1rN2q/2qPq2R/Q4r1B b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 c4 Bg7 b4 Bf8 c5 Bg7 c6 Bf8 b6 Na6 b5 Nc5 Rh5 Nf6 Rh1 Nb7 cxb7 Ng8 Ke2 Kf7 Ke3 a5 Kd4 h5 Kc5 d5 b8R c6 f4 a4 g4 a3 f6 h4 g6+ Ke6 f7 h3 g7 a2 b7 h2 g5 Qd6+ Kb6 Kd7 g6 e5 Ne2 e4 Ng3 e3 Nc3 e2 Nf5 e1Q Ne4 Rh7 Rb1 a1B Bb2 Qe6 Be5 c5+ Ned6 c4 Bg2 c3 Rb3 c2 Ne3 Nf6 g8B c1Q g7 Rh3 Bh7 Bc3 g8N Nh5 Nh6 Nf6 Nhg4 Be7 f8Q Qc2 Qa1 Ng8 Qg7 Bb4 Bge4 Ra5 Ra8 Qf7 b8N+ Ke6 Na6 Qe8 Rb8 Qe2 Nc7+ Kd7 Qd4 Ra1 Na8 Ke6 Bg2 Bh4 Qa7 Rf1 Qaa1 Bb7 Rd8 Bc8 Bge4 Nf6 Bf3 Qd7 Rh8 Ng8 Rg1 h1Q Rg2 Qg1 Rh2 Qg3 Bh1 Qe8 Ka7 Qgg2 b6 Qd7+ b7 Qa4+ Kb6 Rg3 b8N Qh3 Nd1 Rd3 Nde3
1RN1K3/nB2N2R/1R2p1r1/5b2/1R1QPnn1/r1QB1Prk/RQ2r1b1/4B1b1 b - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 d5 gxf5 g4 c4 Qd6 cxd5 Qe5 Ra5 Qf4 Ra1 Qg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 e4 Kd7 Ke2 a5 Kd3 c5 Kc4 h5 b4 a4 d4 g3 d6 g2 Kd5 a3 b6 c4 f3 c3 f6 c2 b7 h4 f7 h3 g6 a2 b5 h2 b6 Ra4 g7 Rb4 Bd2 c1R Ne2 g1R Nec3 Rh3 Qc2 Nc6 b8R Rh6 b7 Re1 Bd3 Rhg6 Nb5 Rc1 N1c3 Rh6 Qb2 Rh8 Na7 Rb6 Be1 Nh6 g8B Rc2 Kc5 Ke6 d7 Rf2 d8R Rg3 d5+ Ke5 d6 Kf4 d7 Re2 Nd5+ Kg5 Re8 Kh4 d8Q Bf5 Nc8 Na7 Qc3 Bg7 f8Q Rg6 Qff6+ Kh3 Rb1 a1N Rb4 Nc2 Kb6 Nf7 Kc7 Ng5 Qfd4 Ne6+ Kd7 Rhh6 Q8b6 Ne3 Rf8 Rh5 Ke8 Nf4 Ra8 Rh7 b8R Ng4 Rf6 Rh5 Qb5 Bh6 Rfb6 e6 Bf7 Bf8 Nde7 Bg7 Qbe5 Bh8 Qb2 Rhg5 Qec5 Bg7 Qdc3 Bd4 Qd5 Bg1 Qdd4 Nc6 Ra2 Na7 Kd8 Rh5 Be8 Rh7 Bc6 Rf7 Nd5 Rc7 Bb7 Rc5 Nde7 Ra5 Ke8 Ra3 Bd2 Bf2 Rc1 h1B Be1 Be3 Qcd2 Bf2 Rc7 Bg2 Qd2c3 Bg1 Ng8 Rb3 Rf7 Ra3 Nge7 Rf2 Rg7 Re2 Rh7+
Qb1n4/b5p1/1n2R2Q/BRPr2N1/1K3R1B/1N2rQn1/B1bk2P1/RRrb4 b - - 0 1 illegal: No proof kernel
1K1n2N1/np2rRBP/1BbBnQn1/1k2Q2N/1q1b4/1P3BR1/b2Q1R2/2b2B2 b - - 0 1 illegal: No possible last move
3br3/3Rn2q/2RNR3/Q4rk1/n1p1R2B/r1Q2B2/BQPpPR2/Nb4Kn b - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 e5 dxe5 f6 exf6 Ba6 a4 Bb7 axb5 Bc8 b4 Kf7 g4 Kg6 f4 h5 Kf2 a5 b6 c5 b7 d5 f7 h4 b5 d4 b6 a4 f5+ Kh7 f6 Kg6 Qe1 a3 Nf3 a2 Qa5 d3 Nc3 h3 Ne4 h2 Nd6 Qc7 Nd4 Nc6 b8R Be7 f8R Qa7 b7 Bd8 f7 Rh7 Nb3 Qa6 Re8 Rh6 f8R Nce7 Bg2 Bd7 Rd1 h1R Rc8 Qc6 b8Q Nf5 Bf4 Ng3 Bf3 R1h4 Kg1 Qa4 Rc6 Nh1 Re4 Rh8 Bg3 Ne7 Qbb4 R4h7 Qc3 Rf7 Rab1 Rh3 Na1 Rf5 Rbb6 Be6 Rf7 Bc4 Rf1 d2 Rf2 Qa3 Qb2 Qd3 Rh7 Ng8 Rd7 Ne7 Qac3 Ra3 Qa5 Rh8 Qbc3 Kh7 g6+ Kh6 g7 Re8 g8Q Bb3 Qgh8+ Kg5 Qb2 Be6 Nb3 a1N Qhc3 Kg6 g5 Bc4 Nd4 Ba2 Nb3 Bb1 Ra6 Kh7 g6+ Kh6 g7 Kg5 Rb4 Qe4 g8B Qh4 Re4 Qh7 Nd4 Nb3 Bc4 Nc1 Ba2 c4 Nb3 Nd3 Na1 Nc5 Nb5 Rh8 Rce6 Rg8 Nd6 Re8 Rc6 Na4 Bh4+
1B2NR2/1n1Q3K/3Nq1N1/2rpPbr1/b1R1QnR1/k1p3P1/2B1R2b/RnB5 b - - 0 1 illegal: No possible last move
1QnN4/3Qb2q/1r1R1b1r/1Qpn1k2/1Bn1pPb1/R4QPB/1N3K2/2QR2N1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 d4 a5 f6 Kg6 b6 h5 f7 c5 d6 e5 g3 e4 b7 a4 d7 a3 b5 a2 b6 h4 d5 h3 d6 h2 Bd2 Bh6 f8Q Qe7 d8N Qe6 d7 Bg7 Bb4 Na6 b8Q Qf7 b7 Rh6 Nd2 Ne7 Nc4 Kf5 g6 Bf6 g7 Nc7 g8Q Ra6 Qc1 Qh7 Nb2 Ncd5 Qgf7 Rc6 Q8g7 Rb6 Qh5+ Bg5 Qhd1 Bf6 f4 Bg5 Kf2 Bf6 Rb1 a1B Qf3 Bh4 Nc4 Bc3 Rb3 Bcf6 Nb2 Bhg5 Ra3 Bh4 Ne6 Bhg5 d8R Bd7 Qc7 Nc8 b8Q Be7 Qc6 Bgf6 Ng5 Be6 Rd6 Bd7 Qb5 Be6 N1h3 Bd7 Bg2 Be6 Rd1 h1N+ Ke1 Bd7 Ng1 Nf2 Ne6 Ng4 Nd8 Nge3 Kf2 Nc4 Bf1 Be8 Bg2 Bh5 Bh3+ Bg4 Qf7 Rb7 Qfe8 Rb6 Qed7+
b5r1/N2Q1Bnr/R3Bb2/1p3bQn/R3PBp1/B1R2Nk1/1K4P1/N1rB2q1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 e5 bxa5 d5 fxe5 g4 c4 Be6 cxd5 Qg5 hxg5 Bc8 d4 Kd7 Kd2 c5 Kc2 b5 e4 h5 a4 f5 a6 f4 a5 f3 e6+ Kd6 g6 f2 e7 c4 e8B c3 g7 h4 a7 h3 a6 h2 Be2 f1B Ra4 Ne7 g8B Nf5 Na3 Bd7 Bef7 Ng3 Nf3 Rh6 Bf4+ Ke7 d6+ Kf6 d5 Be8 d7 Be7 d8N Rh5 d6 Rh7 d7 Nh5 Nc6 Ng7 d8B Bd7 Qd5 Be6 Qd7 Bf5 Bd1 Bc4 Ba5 Bce6 Bb4 Bd5 Kc1 c2 Kb2 c1R Nc2 Bd8 Na1 Be7 Re1 h1Q Ba3 Qg1 Re3 Bd8 Be6 Kg6 Rb3 Kh5 Rc3 Bf6 Bgf7+ Bg6 Qc8 Nd7 Qc7 Rd8 a8Q Rg8 Na7 Bb7 Qad8 Ba8 Ng5 Kh4 Qc5 Nb6 Qd7 Nd5 Nf3+ Kh5 Bb8 Bc6 Nc8 Bb7 Qe3 Nf4 a7 Bd5 a8R Bc6 Nh2 Kh4 R8a6 Nfh5 Na7 Bf5 Bbd6 Ba8 Bc7 Be5 Nf3+ Kg3 Qh6 Bd5 Qg5 Ba8 Bb6 Bf6 Be3 Qh2 Bd2 Qg1 Bf4+
3NBQ2/NqNQ2r1/1k4PP/1b2RRr1/n1n1N2p/Q1p5/RN6/b1rb1KB1 b - - 0 1 illegal: No proof kernel
brn1RQ1b/4R1r1/1b2p1Nk/1B1rqBpQ/2PP1Q2/nR4Q1/8/Q1N1B1K1 b - - 0 1 illegal: No proof kernel
1N2B3/N1b1R1QQ/P2r3b/Np2N3/b1np4/2P1r1n1/2B1rk1K/QqB1NR2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 a4 Kf7 f4 Kf6 Kf2 d5 Kg3 b5 h4 g5 h6 e5 c3 d4 a6 g4 a7 e4 h7 e3 h5 e2 h6 e1B+ Kh2 Be7 c6 Bb7 c7 Nc6 c8N Qa5 Nf3 Bb4 Bd3 Qb6 a5 Bd2 a6 Nge7 Rf1 Qa5 Na3 Re8 h8Q+ Kf7 f6 Ke6 h7 Kd5 f5 Ne5 f7 Nc4 f8N Bh6 f6 Nf5 f7 Ng3 Bc2 Bd6 Nd7 Qb4 f8N Qb1 Ne1 Bc7 Nb8 Re3 Qg7 Bc6 h8Q Bd7 Nh7 Bf5 Nf8 Bd3 Rf7 Ke4 Re7+ Kf4 Nfd7 Be4 Bb3 Bc2 Ne5 Ke4 Qhh7+ Kf4 Nbc6 Rb8 a8B Rb6 Nb8 Rd6 Ba4 Bb3 Na7 Bc2 Bb2 Re2+ Bg2 Ke3 Bc1+ Kf2 Bc6 Re3 Bb3 Re2 Be8 Re3 Ba2 Ba4 Bb3 Nf5 Bc2 g3+ Kh3 g2+ Kh2 g1R Nbc6 Na5 Nac4 Ng3 Nb8 Re2 Nd2 Nc4 Nb3 Nh5 Na5 Rg3 Bd2 Rge3 Qc1 Re6 Qb2 Ng3 Bc1 Qa2 Rb1 Rd6 Qa1 Qb3 Bd2 Qb2 Rd1 Qb4 Bc1 Qb1 Ng2 Rd8 Rg1 Rd7 Ne1 Rd6 Rf1+
nQ4k1/B2p3b/n2BR1N1/2q1RR1N/PQ2p1BK/2PB1r1b/6Br/1rb3N1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 h4 Kf7 f4 g5 Kf2 b5 Kg3 e5 a4 b4 c6 b3 a6 g4 a7 b2 h6 Bg7 h5 Kf8 c3 Qa5 f6 Qd8 h7 Qa5 f5 Qc7 h6 Qd8 f7 Qe7 c7 Ba6 c8B Bd3 Be2 Bc4 Ba6 Qd8 Qd4 Bd3 Qb4+ Ne7 Kh4 g3 Be3 g2 Bg4 Bf1 Nd2 b1B Ne4 Qb6 Nf6 Qd6 Bd3 Ba2 Re1 Qd4 Nh5 Na6 Rh3 Rb8 a8B Bb1 Bae4 Qd5 Ba7 Qc5 Rhe3 Nc8 R1e2 Nb6 Ba8 Ke7 f8B+ Kf7 Bd6 Rbf8 Bb7 Na8 f6 Rhg8 h8Q Bc2 h7 Bh6 Rg3 Bc1 Rge3 Rg5 Bbf3 Rf5 Bb7 Rf3 Bbe4 Rb8 Qd8 Rb6 Qb8 Rc6 h8R Rc8 Rh7+ Kg8 Re7 Rf8 Re6 Rf2 Rf3 Bb1 Nh3 g1R Rf5 Rh2 Bg2 Bc2 Kg3 Rgh1 Ng1 Bb1 B2f3 Bh3 Kh4 Bc2 Bg2 Bb1 Nf3 Rf1 Ng1 Rf3 Q8b5 Rb8 f7+ Kh7 f8N+ Kg8 Qf4 Bc2 Qa5 Rb1 Qab4 Bb3 Qb8 Bd5 Qfb4 Be4 Rff6 Bh7 Rf5 Qc8 Ng6 e4 Rf2 Qf8 Rfe5 Qc8 Nf8 Qc5 Rf1 Rg3 Rff5 Rf3 Ng6+
b3kbrB/1N1pPR2/n3rR2/n2qQR1B/Q3P3/3N4/3p1r1Q/BKQbQ3 b - - 0 1 illegal: Other
Qrr1N1b1/2p1n1n1/Bn3p1B/7R/PRNk1bB1/2N2R2/Bq2PK2/2BQ2r1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a4 Ke7 d4 b5 h4 g5 d6+ Ke6 h6 Kd5 h5 g4 a6 f6 e6 g3 d7 b4 e7 g2 e8B b3 a7 b2 h7 Bg7 h6 Bf8 Nc3+ Kc4 d5 b1N d6 Na3 Kf2 Kc5 Rb1 Qe7 d8N Qe4 d7 Qg6 Rh5+ Qg5 Bf7 Bg7 Nf3 g1R Nd2 Nc6 Ba2 Nce7 Nf7 Nf5 d8R Nd4 Rb4 Nc4 Bh3 Nb2 Nc4 Ne7 Bg4 Ndf5 Nfd6 Rb8 a8B Be6 Bb7 Bg8 Ne8 Qd2 Rd3 Bf8 Rg3 Kd4 Rf3 Ng7 Bbc8 Nef5 Bb7 Bd6 Ba6 Ne7 Bf5 Bf7 Bg4 Rg8 h8Q Bf4 h7 Bd5 Ned6 Rgc8 Qe8 Bf7 h8B Bg8 Qc6 Be5 Ne8 Bf4 Ne5+ Nc4 Qb7 Kc5 Qa8 Nb6 Nc4+ Kd4 Qf1 Ne6 Bg7 Qb2 Bh6 Ng7 Qd1+
N3B1NB/1bp3R1/1n1P3P/7q/rQN1n2B/bNp2Qr1/1k4nK/1b1QR2N b - - 0 1 illegal: Other
1bbqNR1b/5Q2/4N1rk/2Q2B2/RP1nPRp1/q2p1R2/N1BKRn2/2B1r3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 e4 g5 h4 a5 b4 f5 c4 Kf7 h6 Kg6 e6 d5 e7 g4 e8N d4 h5+ Kh7 b6 f4 c6 a4 c7 a3 b7 f3 c5 a2 c6 f2+ Kd2 Qd7 Nh3 Qe7 Qb3 Qg5+ Nf4 Qg7 Nc3 Bf5 c8Q Qd7 c7 Ra6 Ne6 Qd8 Rh2 Nf6 Bd3 f1Q Bc2 d3 Re2 Nc6 b8R Nd5 Ra8 Rb6 Ra4 Bd6 Rb1 a1B Na2 Ne3 Rb2 Kg8 h7+ Kf7 h6 Kg6 Rf2 Nd4 Rf3 Nd1 Qc4 Rf8 h8R Nf2 h7 Kh6 Qb3 Rf6 Rf8 Rc6 Qd5 Rg6 Qd7 Rc5 c8B Bb8 Qf7 Rc3 Qc5 Ra3 Nc3 Rb3 Rba2 Rb1 Rb2 Qg2 Na2 Qh2 Bd7 Qd6 Rf4 Qd5 Rf3 Qb3 Rf4 Qa3 Bc8 Rg8 h8R+ Bh7 Ng5 Qd7 Ke3 Nb5 Bd2 Qd8 Bb3 Rh1 Bc1 Re1+ Re2 Bg7 Qe6+ Bf6 Rf7 Rf1 Rf3 Re1 Bc2 Rg7 Kd2 Nd4 Rhf8 Bf5 Qd7 Bfe5 Qda7 Be6 R7f4 Rg6 Qf7 Bh8 Bd7 Bc4 Be6 Ba6 Bf5 Bc8 Ne6
1R1b1q2/BB2nR1B/N4Q1Q/n1Nr1PK1/1N1Q1Bp1/1P4b1/pr4q1/1B2kb2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 Kf6 Kf4 a5 h4 d5 c4 e6 c6 g6 b6 d4 b7 d3 c7 d2 h6 a4 h5 a3 c5 a2 h7 Ra5 c6 Qe7 b3 Nd7 b8N Qa3 h6 Ra8 Na6 Ne5 Bd3 Nc4 Ne2 Qa5 Nbc3 Qc5 Bb1 Nb2 Ng3 Bb7 c8B Ne7 c7 Bg2 Bb7 Bf1 c8B e5+ Kg4 g5 f4 Rg8 h8B+ Rg7 h7 e4 Be6 e3 Bg8 e2 Rh2 e1B Re2 Nc8 Re8 Ne7 Rb8 Nc4 Qf3 d1Q Be3 Qc6 Ba7 Qdd6 Qe3 Qg2 Qd4+ Qe5 Kh5 Na5 Kh6 Nec6 Kh5 Be7 Kh6 Bd8 Nge4+ Ke7 Nec5 Bg3 Nd5+ Kd6 f6 Qe7 f7 Qf8 f5 Ne7 Ndb4+ Nd5 Kh5 Rg6 Bf6 g4 h8Q Rh6+ Kg5 Rh2 Qe4 Ne7 Bh7 Qh1 Bc3 Rb2 Bd2 Qg2 Qc3 Bb5 Qc1 Bf1 Qd3+ Ke5 Qd7 Qe8 f8Q Qf7 Qa4 Kd4 Bf4 Qe8 Qh6 Qf8 Qd1+ Kc3 Qac6 Bd3 Bc2 Bf1 Rc1 Bd3 Qg1 Bb5 Re1 Bf1 Re3+ Kd2 Bb1 Kd1 Qcf6 Kd2 Rd3+ Ke2 Rd7 Ke1 Bb6 Ra7 Qgd4 Ra8 Nc7 Ra6 Ba7 Rd6 N7a6 Rd5 Rc7 Nec6 Rg7 Ne7 Rf7
2Q1Nn2/2rB2N1/1n3q2/2NPQ1q1/p1BB1p1r/N1k5/b1Pb1R1n/3Q1RNK b - - 0 1 illegal: No possible last move, all moves rejected
8/2B3n1/1RBQ4/pp5b/qrRBQ3/2qbN2B/P1rP1rB1/nNk1KQR1 b - - 0 1 legal: proof: e4 d5 exd5 c5 g4 g5 b4 e6 bxc5 Ne7 h4 Rg8 hxg5 Qd7 f4 Qb5 f5 Qb4 g6 Qa5 g5 Rh8 f6 Bg7 fxg7 Ng8 Ba6 Qc7 Bf1 Qd8 c4 Ke7 c6 Kd6 c5+ Ke5 c7 Ke4 c6 b5 d6 f5 d7 a5 Rh2 h5 Bh3 Kd3 Ne2 h4 Nd4 e5 Nb3 e4 Rg2 e3 Qg4 Kc2 Qf3 e2 Qg4 f4 Bb2 f3 Bd4 Qf6 d8B Ne7 g8Q Nd7 g7 Nc5 g6 Nf5 Qe6 Rf8 g8Q Ng7 Qd6 Bd7 c8B Be8 Be6 Rc8 c7 Qf4 Rh2 Qe3 Rg2 Qc3 Bd5 Rf4 Rg1 Bf7 Bf1 h3 Qgf8 h2 Bc6 h1R Bg2 Rh2 Qge6 Kb2 Qe4 Rfh4 Be3 Be8 Nd4 Kc1 Nf5 Nb3 Bd4 Rf4 Ne3 Bf7 Bh3 Rf2 Rg5 Ne6 g7 Bh5 g8B Ng7 Rg6 Rg4 Qee8 Rh4 Bgd5 Re4 Be5 Rb4 Bd4 Qc4 Ba8 Qc2 Qde7 Qb2 Rb6 Rh2 Qd6 Qa3 Nc3+ Kb2 Qeg6 Rh1+ Kf2 Rh2+ Qg2 Qa4 Rg1 Na1 Nf1 Kc1 Nb1 Rb8 Be4 Rb7 c8R+ Rc7 Qff6 Rc3 Rc4 Rc2 Kg3 f2 Bac6 e1Q Bc7 Qe2 Ne3+ f1B Qff3 Qd3 Kf2 Qc3 Ke1 Be2 Qgf1 Rf2 Qg4 Bd3 Beg2 Bf5 Qh4 Bd3 Qe4
1n3k1r/1B2n2n/Qb3p2/N2BNP1q/2r1Q1q1/2PQ1R1b/1K2pQR1/2N1B2Q b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 d5 gxh5 b4 exd5 b3 axb3 Nh6 b4 Ng8 b5 Rh7 Bg2 Rh6 Bf1 Rh8 f4 g5 h4 a5 d4 e5 Kd2 a4 Kc3 e4 f5 f6 c6 g4 b6 e3 d6 e2 d5 a3 d7+ Kf7 h6 a2 c7 g3 b7 g2 h7 Bh6 d6 Qe8 d8Q Bf4 h5 Bh6 d7 Ra7 Qd4 Qe4 Nd2 Bf4 h6 Bg3 Qf2 Qe8 Rh3 Ra4 Ngf3 g1N Kb2 Re4 c3 Re6 Ne5+ Kf8 Nb3 Rc6 Bd2 Re6 Be1 Nf3 Bg2 Ng5 Nc1 Rc6 Bd5 Bf4 Rf3 Na6 b8N Re6 Nbc6 Rd6 Na5 Bb7 c8B Ne7 Qdb6 Nb8 d8Q Rc6 Qa6 Be3 Qd6 Ba8 Bb7 Bb6 Qb4 Qh5 Qe4 Rc4 Qd3 Rg8 h8Q Qg4 Qh7 Rh8 Rb1 Qh5 Qg6 Nh7 Qgg2 Re4 Qg4 Rc4 Qge4 a1Q+ Kb3 Qa4+ Kb2 Qg4 Ra1 Qe8 Ra4 Ng5 h7 Qeh5 Rb4 Rg8 h8Q Nh7 Qg7+ Ke8 Qg5 Kf8 Qgh4 Rh8 Qh1 Qf7 Qee3 Nc8 Bdc6 Ne7 Bc8 Qf4 Rg3 Rc5 Rc4 Qg4 Rf4 Bb7 Bf3 Be4 Bb7 Qfh5 Bg2 Rc4 Qef3 Qg8 Qf3e3 Bf3 Rg6 Bg4 Bgd5 Qg7 Rf3 Bh3 Rg2 Qgg4 Qee4
2B1B1NB/7K/2bPR2b/2q5/1Q1qQBR1/prnpr3/2kB3P/n1N2NbR b - - 0 1 illegal: No proof kernel
4Bb2/4b1BR/3P1Q1q/QR1r1RBr/1n2p1p1/1KNB4/Q1Pqbk1B/N3n3 b - - 0 1 illegal: No proof kernel
1q4NR/BR1BR2N/n2P4/qN2k2N/bP2r3/QQ3KNr/p5pB/4rnb1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 f4 Kd6 h4 g5 d4 e5 h6 a5 h5 c5 f6 g4 b6 g3 b7 e4 h7 c4 f7 e3 f5 c3 f6 c2 h6 g2 Kf3 a4 Bb5 e2 Bd7 e1R Na3 Na6 b8B+ Qc7 Rb1 Nc5 Bf4+ Re5 Bh2 c1Q Ba7 Bb7 Ne2 Qd2 Qb3 Qb4 Ng3 Re4 Rhe1 Be7 f8Q Qbb6 f7 Nf6 Re3 Rg8 h8N Rc8 h7 Qa5 Ng6 Rb8 h8R Rc8 Nf4 Na6 Nfh5 Qb8 Ree1 Rc1 Re2 Qbc7 Qa8 Rg1 f8N Qb8 Nh7 Bc6 Ree1 Bd8 Re3 Bb6 Nb5+ Ke7 Ree1 a3 Re3 Kf7 d6+ Nd5 Re2 Kg6 Ree1 Ne3 d5 Nf1 Re2 Ra4 Re7 a2 Be8+ Kh6 d7 Re4 d8N Bf2 Nf7+ Kg6 d6 Bd7 Nd4 Ba4 Bd7 Rc8 Nb5 Rc3+ Be3 Rh1 Nh6 Bg1 Ng8 Rc1 Bb6 Rce1 Ba7 Re6 Ne2 Kf5 Neg3+ Ke5 Rc1 Re2 Rc7 Re4 Rb7 Be3 Bg1 Rh3 Bh2 Bc5 Qd1 Re1 b4 Bg1 Qb3 Qb6 Rc7 Nc5 Qc6 Qa5 Qb1 Na6 Qc3+ Kd5 Qa3 R6e2 Rb7 Re4 Rf7 Ke5 Qbb3 Bb6 Rg7 Bg1 Re7#
n2r2R1/1N3R2/1BrpqR2/bpn3k1/3QQ2q/2QPR1N1/1P3b2/NBK2Rn1 b - - 0 1 legal: proof: e4 b5 c4 h5 g4 f5 gxh5 d6 exf5 Ba6 a4 Bc8 c5 Rh7 c6 Rh6 a5 Bb7 a6 Rh8 axb7 Na6 b8N Qc8 Ra5 Nh6 Ra1 Qb7 cxb7 Ng8 f4 Kf7 h4 Kf6 h6 g5 h5 c5 h7 e5 h6 c4 Qe2 g4 Kd1 c3 Qe4 g3 Rh3 g2 Nd7+ Ke7 b8R Nf6 Na3 Nd5 Ne2 g1N Re3 Nc5 Ng3 a5 Nc2 a4 Bd3 Bg7 Rg8 a3 f6+ Ke6 f7 a2 f8R Ra6 Rf7 Nb6 Rb1 Na8 Na1 Rc6 Bc2 Bf6 d3 Bd8 Bd2 Bc7 Kc1 Ba5 Be1 Bb6 Bf2 Ba5 Rgg7 Rd8 h8Q Bc7 h7 Ba5 Qg2 e4 Rg8 Na4 Qd4 Nc5 Rff8 Ke7 h8Q Ke6 f5+ Ke7 Re2 e3 f6+ Ke6 Re1 e2 f7 Ke7 Rf1 e1B Be3 Bf2 Qhg7 Ne4 Qf3 Ke6 Nc5+ Ke7 Nb7 Nc5 Nb3 a1Q Qfe4+ Ne6 Qge5 Qa2 Ra1 Qa4 Bb1 c2 Qc3 Qc4 Bb6 Qd4 Qec5 Kf6 Q5c4 Qe5 Qc4d4 Nc5 Re1 Rc7 Re3 Rc6 Rh8 Kg5 Rh6 Qe6 Rf6 Qe5 Re8 Qe7 f8R Qe6 R8f7 Qg4 Kd2 Qc8 Ba2 Qe6 Nh1 Bg3 Raf1 Nh3 Na1 c1Q+ Ke2 Qb1 Kd2 Qe1+ Kc2 Ng1 Bb1 Qf2+ Kc1 Qh2 Rh8 Bf2 Ng3 Qh4 Rg8+
B5rn/6RQ/2PRbN2/B3B2K/1pB1Np2/3bN3/q1rB2Pk/n1q2QbQ b - - 0 1 illegal: No possible last move
R1r1R2k/1K4B1/2pP4/Bb1pN2q/1P1n1B2/3Qb1N1/rRB4N/nQB1b1q1 b - - 0 1 illegal: No proof kernel
b1NK4/N1N3QN/np5N/2Rn4/2pr1RB1/1B3P1q/1b1PqQ2/Qr1bB2k b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 Kd6 Ke4 h5 g4 c5 a4 e5 f6 h4 g6 h3 g7 h2 f3 Na6 g5 Qc7 g6 Qd7 f7 Ra7 Ba3 Qe8 Nc3 Bd7 Nb5+ Ke7 d6+ Ke6 Rc1 Qb8 Nh3 Rh7 Ng5+ Kf6 Kd5 Kf5 Bh3+ Kf4 Bg4 Nh6 g8B Kg3 g7 Rh8 Nh7 Ra8 Na7 Be7 f8Q Bc6+ Ke6 Kg2 d7 e4 d8Q e3 Qd4 Be4 Kd7 e2 Bb3 e1Q g8N Qbg3 Qfg7 Nf5 Nh6 Bf6 Rc3 Raf8 Qa1 Ne7 Rc4 Qe2 Rhc1 h1B Rb4 Kh2 Qf2+ Bg2 Rd4 Bg6 Rf4 Be4 Bb2 Qh3 Be5 Nd5 Bc7 Nab4 a6 Rb8 a5 Bb2 Bd8 Re8 Bh4 Rf8 Bd1 Kh1 Bb3+ Bf1 Bg3 Rf5 Bh4 Re8 Rc3 Re7+ Kd8 Rd7+ Kc8 Re5 Qfe1 Qf2 Nc6 Nf6 a7 Ree7 a8N Rd4 a6 Bd5 a7 Na6 Nc7 b6 Nb5 Qfh2 a8N Re5 Qg3 Re1 Kd8 Be2 Nd6 Rb1 Na7 Bd1 Nc7 Ba8 Rc1 Nd5 Ndc8 Qe2 Qe1+ Qef1 Qe3 Qc4 Be1 Qe2 Rc4 Bc3 Qf2 Bb2 Ra4 c4 Ra5 Qe4 Rb5 Qe2 Rc5
B3r1N1/4N2Q/p1b2Q2/1r5b/3RNQ2/P2n2n1/qqpPQ1KB/krQ1R2R b - - 0 1 legal: proof: e4 d5 exd5 b5 h4 g5 hxg5 e6 f4 b4 g4 b3 g6 Qe7 g7 Qb4 g5 Qd4 g6 Qf6 cxb3 Qd8 b4 Be7 b5 Bg5 fxg5 Bb7 Qh5 Ba6 Qd1 Bc8 Kf2 Kd7 b4 Kd6 b6 f5 b7 h5 b5 Kc5 a3 e5 d6 e4 b6 f4 d7 a6 Qa4 e3+ Kg2 h4 Bb2 e2 Ra2 e1R Nh3 Nf6 g8Q Nc6 b8Q Rh5 b7 Ne4 g7 Ng3 g6 Nb4 Qgb3 Qg8 d8Q Nd3 Qae8 Bg4 Qd1 Kc4 Ra1 c5 Qc1+ Kb3 Qf6 c4 Nf2 c3 Qe2 c2 Ne4 Rb5 Be5 Bh5 Nbc3 Qd5 Qh8 Re8 b8Q Qg8 Nd5 h3+ Kh2 f3 Bg2 f2 Qh7 f1Q Ne7 Qh8 g8R Qf2 Rb1+ Ka2 g7 Qb6 Rb4 Qe6 Rd4 Qb3 Bd6 Qb2 Rf8 Qg8 Bf3 Qgb3 g8N Rd1 Re1 Qe6 Kg1 h2+ Kg2 h1B+ Kg1 Nf1 Bh2 Ng3 Qbf4 Qd5 Nc5 Qdb3 Ba8 Bc6 Ne4 Bg4 Qff2 Qa1 Qfg7 Nh5 Kg2 Qab2 Qh4 Qc4 Rff1 Ng3 Qgf6 Bh5 Qhf4 Qf7 Rh1 Qe6 Reg1 Rf1 Qce1 Qf7 Q1f2 Rb1 Qfe1 Ka1 Qc1 Qfa2 Re1
Qnr1k1NK/2R1B2P/2Bbn2q/4p3/5QNp/2P3n1/R4RBq/Q2rBB1b b - - 0 1 illegal: No proof kernel
2B3Bk/4R1Rp/1B1q2b1/QBN1n3/K1b1PN2/pBP2Nq1/1Q1b4/1rrn2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 f5 Kc3 Kf7 Kb4 Kg7 e4 d5 g4 a5+ Ka4 f4 b4 d4 g6 f3 b6 f2 c3 d3 g5 d2 b7 Qb6 e6 Nc6 b8Q Na7 b5 Qd6 b6 Qf4 e7 Bh3 e8R Qf3 c6 Nb5 b7 Qf7 c7 Ne7 c8B Na3 Qh5 Nf5 Ne2 Ne3 Re7 Nd1 Nf4 Nc4 Rg1 Ne5 Bb5 f1B Ba3 Kg8 g7 Bf5 Bc5 Bc4 Bb6 Bg6 Ra3 Qd5 Rb3 Qd3 Ra3 Ne3 Rb3 d1Q Nd2 Qe1 Nf3 Qg3 Rb2 Qd4 Rbg2 Ra7 Qh2 Qd2 Qa8 Qd6 b8N Nd1 Nd7 Rb7 Nc5 Rd7 Ka3 a4 Kb4 a3 Ka4 Qf6 Qa6 Rd2 Qa5 Qd6 Na6 Rc2 Nc5 Qh3 Rg4 Rc1 Qb2 Qg3 Re8 Kf7 g8B+ Kg7 Bge6 Rg8 Re7+ Kh8 Bd5 Bh6 Bf7 Be2 Ba2 Bc4 Bb3 Bf5 g6 Rd8 Nh5 Bd2 Nf4 Rd7 Rg5 Rb7 g7+ Kg8 Re6 Bg6 Rg4 Kf7 g8B+ Kg7 Re8 Kh8 Re7 Qd4 Qb1 Bgf7 Bbd7 Bfe6 Bc2 Ne3 Ba7 Bf5 Rgg7 Qd6 Bc6 Rb2 Bb3 Nd1 Bb6 Bg6 Qa2 Rbb1 Qb2 Qe6 Be8 Qd6 Bb5
2B1R1bK/R5PQ/rkN1NB2/3pQ1b1/2qQ1N2/Qr2P1n1/p6q/1Rq2n1Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 d5 Ke3 Kd7 Kf4 Kc7 g4 a5 c4 f5 b4 h5 g6 a4 c6 a3 c5 h4 g7 h3 g5 h2 g6 Na6 e3 Rh5 b6+ Kb8 b5 Qe7 c7+ Kb7 e6 Nf6 Ke5 Qf7 g8Q Bg7 e7 Rb8 e8R Qd7 c6+ Ka8 b7+ Ka7 Qh7 Bh6 Bb2 Qg7 Nd2 Qf7 Nh3 Qg8 Ne4 f4+ Neg5 f3 Nf4 f2 Bh3 f1Q Qd4+ Nc5 b6+ Ka6 g7 Ne6 Kf5 Bd7 Kg6 Ne4 c8Q Qc1 c7 N6c5 Nge6 Nb3 Re1 Qc4 Reb1 h1Q Qd8 Qhf1 c8Q Ng3 Qcc5 Qfc1 Qh4 Nd2 Bg4 Re5 Qh1 Qh8 Qf8 Bg5 Ra2 Rd8 b8Q Ndf1 b7 Re4 Qc7 Ra8 b8N+ Kb5 Raa1 Ra6 Qce5 Ka5 Nc6+ Kb5 Qhg8 Qh2 Qh7 Bc8 Kf7 Bd7 Kg8 a2 Qa3 Bc8 Kh8 Bd7 Nc5 Bf5 Nce6 Bg6 Bh3 Bf7 Bf5 Bg8 Bg4 Ra4 Bc3+ Ka6 Rb7 Ra5 Rd7 Kb5 Ra7 Ra6 Qd2 Kb6 Rb1+ Qb5 Bf5 Rb4 Qdd4+ Qc5 Nf8 Rb3 Bc8 Kb5 N8e6 Qc4 Bb4 Nf5 Be7 N5g3 Qc3 Kb6 Bf6 Qcc2 Qcb2 Qc1 Qbd4+
Nqr4R/nQb3Pq/2P2rpN/1p2qQ2/bK1R2B1/B1n3Q1/1k1N4/1N1R3N b - - 0 1 illegal: No possible last move
N1q4N/1qn3pB/b1R1P3/1rr1b1n1/Q2B1RP1/1Rp5/2B4B/1Q1NrkBK b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 f4 h4 fxe5 h3 Qc2 Bd7 Qh7 Be6 Nxh3 Bd7 Ng1 Bc8 Kf2 Ke7 d4 c5 b4 a5 e4 f5 h4 a4 g4 a3 Kg2 a2 d6+ Ke6 b6 f4 b7 c4 b5 c3 d5+ Kf7 e6+ Kf6 h5 Ke5 d7 Kd4 e5 Ra6 d6 Qh4 d8Q Ra4 b6 Ra7 h6 Nf6 e7 Ra8 e8B Rg8 e6 Qg5 d7 Qa5 Be3+ Kd5 Bd3 Qa7 Bd4 Bb4 Beg6 Ba5 Bc2 Kc4 Qe8 Rh8 d8B Nc6 b8B Ne4 b7 Ne7 Nh3 Nd5 B8b6 Nc7 Rf1 f3+ Kh1 f2 Qa4+ Bb4 Bf5 Ng5 Qg6 Rd8 h7 Rd5 h8N Rb5 Bbc5 Qb6 Qh7 Raa5 Nd2+ Kd5 Rab1 a1R Rb3 Re1 Nc4 Qa6 Bca7 Bd6 Bg6 Be5 Nb6+ Kd6 Na8 Kd5 Bgf5 Rc5 Rb6 Rab5 Rc6 Qb6 Rg1 f1Q Nf2 Qa6 Nd1 Qc4 Rf1 Qb4 Bfe4+ Kc4 Bb6 Nd5 Bd6 Nc7 b8R Qb7 Ba7 Qa6 Rbb6 Qb7 Bg1 Qb8 Rf4 Ba6 Qg8 Qb7 Qb8 Qc8 Bh7+ Ne4 Bb3+ Kd3 Bc2+ Ke2 Rb7 Ng5 Bb6 Rd5 Bd4 Rbc5 Ng6 Qb6 Nh8 Qa7 Rb3 Qab7 Qa7 Rb5 Qb6 Rdc5 Ra3 Ra5 Qb1 Rab5 Rb3 Bf6 Re4+ Kf1 Bdh2 Be5 Rf4+
2R1nB1q/k5p1/pR4Q1/QB3r1r/nBqN3N/b1QNB2b/n1BKP2P/8 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 d4 c5 e6+ Kc7 d6+ Kb6 d5 f5 d7 a6 e7 c4 e8B c3 h6 f4 d6 c2 h7 f3 Nc3 f2+ Kd2 Ne7 Na2 Ra7 Bh3 f1Q Rb1 Qf3 Qe1 Qg4 Nf3 Nf5 Nh4 Qf6 d8N Qg1 d7 Qgg6 Ne6 Qh5 d8Q+ Kb7 b6 Be7 b5 Qa1 Nb4 Bd7 Nd3 Qg4 Nd4 Rf8 h8Q Qh5 Qh7 Nc6 Qg6 Nd6 Bf5 Qa4 Ba3 c1N Bb4 Rf6 Qeg3 Na2 Rhc1 Ne5 Rc8 Qb3 Qe1 Bf8 Qc1 Qf7 Qc3 Ra8 Rb2 Rb8 Rb3 Ka8 b7+ Ka7 Qa5 Qh8 Rb2 Ra8 Rb1 Qc4 b8B+ Kb7 Bc7 Ka7 Bd8 Be6 Be7 Nd7 Rb3 Nc5 b6+ Kb7 Ba4 Ne8 Bb5 Na4 Rb2 Rf7 Bg5 Rb8 Be3 Ka8 b7+ Ka7 Be4 Bh3 Rb1 Rf5 Rb2 Rh5 Bf5 Ra8 b8B+ Kb7 Bbf4 Ka7 Bg5 Bd6 Be7 Rb8 Rb3 Rb7 Bf8 Rf7 Nb2 Bc5 Bc2 Rff5 Nd3 Bb6 Bbd6 Bc5 Rb1 Ba3 Bb4 Re5 Rf1 Reg5 Rf6 Rf5 Rb6
1kR1R3/3BqpN1/Qr2qBrB/1N2n3/K3p3/QR2P1rP/N2nR3/1bR3b1 b - - 0 1 illegal: No possible last move, all moves rejected
B3b2B/r1r1P1pk/1N4QB/N2Q2q1/PRpb3N/QR4nK/2q1n2Q/2bQ4 b - - 0 1 illegal: No proof kernel
1RqkN3/4p2K/2BB4/BQq1P1bR/1nr3bQ/2B2rp1/2Q1R1P1/b4BnN b - - 0 1 legal: proof: f4 a5 h4 g5 a4 b5 axb5 d5 c4 g4 cxd5 Ra6 h5 Rg6 hxg6 Qd7 Ra2 Qf5 Ra1 Qg5 fxg5 Ba6 Rh5 Bb7 Rh1 Bc8 Kf2 h5 Kg3 c5 Kh4 f5 e4 g3 d4 a4 b4 f4 b6 f3 e5 a3 b7 a2 g7 c4 b5 c3 d6 f2 d5 c2 d7+ Kd8 g6 Kc7 Kg5 h4 d8B+ Kd7 b6 h3 d6 h2 Bb2 c1R Bc7 Rh6 Na3 Na6 b8Q Bb7 Nb5 Rh4 Nh3 Rcc4 Qc2 Rhf4 Bc3 Be4 b7 Ra4 Re1 a1B Re2 Nf6 Kh6 Nh5 Kh7 Bd5 g8Q Rac4 g7 Nb4 Qh8 Be6 g8B Bg4 Bd5 Rf3 Qf6 Bg7 Qh4 Bf6 Ba5 Nf4 Nc7 Bg5 Ne8 Nfd3 Bc7 Ne1 Be4 Rf6 Ba5 Nf3 Bc7 Ng1 Bc6+ Ke6 d7 Rf3 d8B Kf7 Bd6 Ke6 Re3 Kf7 Be2 f1Q Ba5 Qf2 Bf1 Ke6 Re2 Qc5 Nf2 Kf7 Qa7 Kf8 b8R Kf7 Qa6 Ke6 Bd5+ Kd7 Rb6 Kd8 Bc6 Nh3 Rg1 h1Q Qb5 Qh2 Rh1 Ng1 Rb7+ Kc8 Rb6 Qh3 Rh2 Kd8 Nh1 Bc8 Qh6 Qd7 Rh5 Qb7 Qf6 Bg4 Qh6 Qc8 Qf6 Be3 Qh4 Bg5 Rb8+
BN3R2/2Q1p2q/BbK5/P1nn2Q1/r1R4B/k1q1B2b/P1NBpr2/R5bQ b - - 0 1 illegal: Other
4Q2r/3PNp1B/pB1Q1kb1/1N1qNr2/2n1nR2/Q1BR3P/Q4q2/QKn1b3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Ke7 d4 c5 Kd2 g5 Kc2 a6 e4 g4 b6 g3 d6+ Ke6 b7 c4 d7 c3 b5 g2 h6 Qc7 d8N+ Ke7 h3 Qc4 e6 Nc6 b8Q Bb7 e5 Na7 b6 Rh7 d5 Qc8 d6+ Ke8 e7 Kd7 Ra3 Qc4 Be3 Qf4 Nc6 Ke6 e8Q+ Ne7 d7 Bg7 Bd3 Qh4 Nf3 g1N Qf8 Ng8 Ne7 Bd5 b7 Qc4 Bb6 Ne2 Rf1 Be4 Qe1 Rh8 h7 Nc1 Rb3 Bg6 Na3 Qc5 Kb1 Qd5 Nb5 Nc6 Qd2 Nf6 Qa2 Rg8 h8B Ne4 Qbe8 Na5 b8Q Bh6 Qg7 Nc4 Qef8 Bf4 Qc7 Bg3 Qc5 Be1 Qca3 Bh5 Qg1 Rg5 Bc2 Ned6 Bh7 c2+ Ka1 Nd3 Ng6 Ne4 Qfd6+ Kf5 e6 Bb4 Be5 Rh8 e7 Ba5 e8Q c1Q+ Qb1 Qf4 Qba2 Bd2 Bb2 Ba5 Nfe5 Bc3 Qd4 Be1 Kb1 Nc1 Rd3 Qf3 Qc7 Qf4 Ne7+ Kf6 Qcc5 Rf5 Qd6+ Kg5 Ba1 Bg6 Qdb2 Qd2 Rf4 Qe3 Qbb4 Qf2 Bc3 Qdd4 Qbb2 Qd5 Qc7 Kf6 Qba1 Qg2 Qcc5 Qf2 Qd6+
8/b2pRP1Q/N1R1BbnN/qb2N1kQ/2npB3/2BP1q2/2K5/Rr1BB2r b - - 0 1 illegal: Other
b5BQ/k1P1QNbQ/1n2q1B1/1r2N3/2Rn4/1P1nRq1p/2r1BpN1/4BK1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 e4 d5 c4 Kd7 g4 Kc7 b3 Kb7 c6+ Kb6 c5+ Kc7 g6 a5 g7 f5 e6 h5 e7 d4 e8B a4 e5 f4 g5 f3 e6 a3 g6 h4 e7 h3 Qd3 a2 Nd2 Be6 b6+ Kc8 c7 Kb7 c8N Nc6 Be2 f2+ Kf1 Ne5 c6+ Kb8 c7+ Kb7 Ngf3 Rh6 Nc4 Ra4 Bd2 Ra8 Rc1 a1N Ne3 Rb8 Be1 Qd5 Rc4 Nf6 g8B Bg7 Ng2 Nc2 Nd6+ Ka6 b7 Nfd7 Bgf7 Nb6 Bc6 Ka7 e8Q Bd7 Qf5 d3 Qe7 d2 Be8 d1Q Nf7 Nd3 N3e5 Qe6 Qe4 Bf8 g7 Nd4 g8B Bg7 Qh7 Rh5 Be4 Bc6 Bg6 Bf3 Bc6 Rd8 Bce4 Rd5 Rg1 Ra5 Bd5 Ra2 Bde4 Rc2 b8Q+ Ka6 Qbf8 Ka7 Bb7 Bf6 Qfh6 Bg7 Qh8 Be4 Q6h7 Bc6 Nf4 Bd5 Rg3 Bf3 Ng2 Rg5 Ba6 Ba8 Re3 Rf5 Bb7 Rh5 Nf4 Rg5 Bh1 Rh5 Bg4 Qf3 Ng2 Rf5 Nd7 Rb5 Nde5 Qb7 Bd1 Qf3 Be2
5Q2/1BP1R2Q/2R1P2N/pb6/r2qnQ1n/2RQ1qB1/1b4pK/rQBN1k1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 h4 Ke4 b4 g5 b6 a5 c6 d5 e6 f5 e7 g4 e8Q+ Ne7 b5 f4+ Kh2 f3 c7 d4 c5 d3 c6 f2 h6 d2 b7 Ke3 h7 Qd3 h5 Bf5 c8R Bg7 h6 Qc2 b6 Qd3 Qf7 Bg6 Nh3 Qc2 Ng5 Bb2 Bg2 f1Q Nc3 Rf8 h8Q Nf5 h7 Kf2 e4 Qe1 e5 Qa4 e6 Qd4 Ra3 Na6 b8B Qf1 b7 Nc5 Qc2 Ra7 Qd3 Ne4 Nd1+ Ke1 Rc7 Nh4 Qf4 Be8 Rc3 Rf6 Qf8 g3+ Kh3 Rg6 Nf7 Rg4 h8Q Ra8 Rh2 Qf3 Re7 Bd7 Be5 Rd8 c7 Bb5 b8Q Rd6 Bh1 Rd8 Re2+ Kf1 Qh7 Rd5 Nh6 Rc5 Nf2 d1N Bd6 Rc4 Qb6 Ra4 Rec2+ Qe2 Bf3 g2 Kh2 Ra1 Be5 Nd2 Bb7 Ne4 Qh3 Qf3 Qhg3 Ne3 Nd1 Nef5 Qh3 Nfg3 Rc6 Ba4 R2c3 Nh1 Qb3 Bb5 Qc2 Qb4 Qb1 Qa4 Qd2 Qd4 Bg3 Rg5 Qg4 Rc5 Qdc2 Rc4 Qgf4 Rca4 Qd3+
4krr1/1npb1N2/PB1N2RR/2q2BnR/1Pp1Q1NK/3R1b1Q/1Q3R2/2b3q1 b - - 0 1 illegal: Other
r1Q1K3/bP3N2/bR3b1B/Qn1N4/2Q1Q1q1/1qr3np/B3pP1R/kQ1R3B b - - 0 1 illegal: No possible last move, all moves rejected
R1QN2K1/nP5n/3qN3/bpB1BBR1/2R2P2/q2brr2/Q2RN1p1/R4k1b b - - 0 1 illegal: No proof kernel
1N1Br2Q/1p2R3/1QR2n1k/Pq1Q3r/1b2bNB1/1KQ1q1n1/Qb1BpP2/2N5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 a4 c5 d4 g5 Kd2 Kg7 Kc2 e5 f6+ Kh7 f7 g4 d6 c4 a6 e4 h6 g3 a7 g2 d7 c3 d5 e3 h5 e2 d6 Ne7 Nd2 Nbc6 Nb3 Ng6 Nh3 g1Q Bd2 Qg2 Rc1 Be7 f8N+ Kg8 h7+ Kg7 h6+ Kf6 Nf4 Qg5 Bh3 Qg3 Bg4 Qe8 d8Q Kg5 d7 Nb8 Qb6 Bb4 d8B+ Ne7 Nd7 Qe3 a5 Qg8 Rh2 Qc4 Rg2 Re8 h8Q Qb5 Qhd4 Rh8 h7 Re8 Rh2 Rh8 Rh6 Re8 Rf6 Nf5 h8Q Ng3 Qd5+ Re5 Qe1 Rf5 Rd1 Re5 Nc1 Rf5 Ne5 Nd7 Rc6+ Nf6 Kb3 Rb8 Qhg8+ Kh6 a8Q Rh5 Qgf7 Bf5 Nd7 Rc8 Nb8 Be4 Qh1 Qec5 Qf3 c2 Qc3 Qd4 Be7 Re8 Bd8 Qe3 Rg1 Nf5 Rg3 Qec5 Re3 Ng3 Ncd3 c1B Qfe6 Bb2 Nc1 Bf5 Qg8 Bd3 Re7 Qe3 Qh8+ Bh7 Qaa6 Qbc5 Qad3 Qb5 Qd3c4 Rh1 Qce4 Rf1 Qb1 Rh1 Qhg8 Rh5 Qa2 Be4 Qh8+
5n1k/Pn1Bqq1b/R3PB2/r1N2rrp/3bK2R/3p2B1/2QNRN2/1R1R2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
BB3N2/P1RKB1Rb/P2B1pq1/R6b/Qp4r1/n7/1q5B/r1bQQNnk b - - 0 1 illegal: No proof kernel
b2QNb2/N1r1rB2/qR1R2p1/P5Q1/3PQ2Q/nr2B1pQ/3rn2R/3kB2K b - - 0 1 illegal: Other
3Q4/kr2BBb1/1NP2bq1/NQ3B2/2p1brn1/b2NQn2/1Bp1P1K1/1B2RR2 b - - 0 1 illegal: Other
1B3Q1Q/1N4b1/Rp2n1n1/RNQ4K/1PPbn1RN/p5rQ/2B1nr2/4k1Qq b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 h5 dxc5 b6 a4 h4 a5 h3 a6 Bb7 axb7 Kf7 gxh3 Rh6 h4 Rh8 h5 Ke8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 h4 Ke4 f4 g5 b4 e5 c4 d5 h6 a5 c6 a4 h7 d4 f6 d3 h5 d2 h6 Ke3 f5 Kf2 c7 e4 c8N e3 f7 e2 f6 e1B Bd3 Qd5 Kh5 Ra6 Bc2 Nd7 b8R Nc5 Nd6 Ne7 Nc3 Bg7 f8Q Rg8 h8Q Ne6 f7 Ng6 Rh4 Qh1 h7 g4 Ncb5 g3 Nf3 g2 Ra8 g1N Nb7 Ne2 Qc5+ Bd4 f8Q Ra7 N7d6 Rf7 Ra5 Rf6 Bb2 Rf4 Qb1 d1N Nb7 Ndc3 Bc1 Rf6 Bf4 Ne4 Bb8 Bd2 Qd1 Bh6 Ra2 Bg7 Ra1 Qf1 Rg4 Qh1+ Nh4 Rf4 Ra3 Rf7 Qc1 Rf4 Qe3+ Ke1 Qh3 Rf2 Ra6 Bge5 Qhg7 Bf6 h8Q Bfe5 Rf3 a3 Rf5 Bf6 Qgh6 Bg7 Q6e3 Qg1 Qeg3 Qh1 Qg1+ Rf1 Rgg5 Ne5 Nc7 Bf6 Qce7 Rg6 Rf4 Bg7 Rgf5 Rg3 Rg4 Ng6 Rfa5 Kd2 Nb5 Rf2 Qgh2 Ke1 Qc5 Be3 Q2g2 Bed4 Qg1+
6Q1/1kBNr2b/1pp3Pn/R1B2PbK/B1QB2R1/NNq2B1R/1br5/b6n b - - 0 1 illegal: No proof kernel
nNrbb2k/3rNn1B/pR2Qp2/3b2BP/Q2R4/N1Nb3R/4PN2/2KQ2q1 b - - 0 1 illegal: No proof kernel
1N4n1/1qQQr1p1/4Q1RB/1NrNNr1n/3bR3/1p1B2N1/RP2P2b/3rk2K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 b4 c4 Ba6 cxd5 Bb5 axb5 Qf6 Nc3 Qe7 Nb1 Qd8 Kf2 Kd7 Kg2 a5 d4 f5 h4 c5 d6 Ke6 h6 Kd5 e6 Ke4 e7 a4 e8Q+ Ne7 d5 f4 b6 a3 h7 c4 d7 a2 b7 c3 d6 b3 h5 c2 h6 Rg8 h8N Ra6 h7 Qc7 d8Q Qc6 d7 Ra8 Rh4 Qb5 Na3 Na6 b8N Nc7 Nf3 Qb7 Ng6 Nd5 h8R Ra7 R8h6 Nf6 Nd4 Nh5 Kh1 Rh8 Be3 c1B Ne5 Ng8 Qc7 Bc5 Nf5 Bd4 d8N Ra5 Qe6 Rc5 Rg6 Bd2 Rc1 a1R Bh3 Rb1 Bg4 f3 Nb5 f2 Bh6 Bf4 Ndc6 Bh2 Nb4 Ra1 Nd5 f1R+ Kg2 Ra7 Ra1 Ra5 Qd2 Rd1 Ra2 Ra7 Qg5 Ra5 Qgd8 Ra7 Qdd7 Ra5 Nf4 Ra7 Ng3+ Ke3+ Bf3 Kd2 Nd5+ Ke1 Be4 Rh7 Bd3 Rh8 Be3 Rh7 Kh1 Rh6 Rg5 Rf6 Rg6 Rf5 Re4 Ra8 Na6 Re8 Nb8 Re7 Bh6
1Q1b1BB1/R5pb/3q2NR/7P/r2p1NP1/R3nrkR/RQ2Q2n/1rrNK3 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 h5 e4 c5 dxc5 h4 exf5 Qc7 Qh5+ Kd8 Qxh4 Ke8 Qh7 Qd8 g4 Kf7 h4 Kf6 b4 Ke5 c4 d5 f4+ Ke4 h5 e5 c6 a5 c7 d4 c5 a4 b6 a3 b7 a2 b5 Bd6 f6+ Bf5 c8R Nd7 f7 Nb6 f8N Bg6 f5 Qd7 c6 Qe8 f6 Ra5 c7 Qc6 f7 Bc5 Nh3 Kf3 Ra8 e4 c8R e3 Nc3 e2 Rc7 Bb4 Ba3 Qc4 Kd2 Bc2 Qe4+ Kg3 b8R Nc8 b6 e1R b7 Qc6 Bc4 Nd6 Qe2 Rc1 Re8 Be4 Re6 Ne7 Rh6 Bh7 Ng6 Ndf5 b8Q Nd5 Qb5 Rd8 f8Q Be7 Qb2 Nh4 Nd1 Ne3 Ke1 Bf6 Be7 Qd6 Bg8 Re8 Rc3 Ra4 Ra7 Rd8 Qe8 Rd7 Bf8 Rf7 Qeb8 Bd8 Ra3 Rf2 Nhf4 Rf1+ Kd2 Nf3+ Kd3 Rf2 Rh4 Nh2 Kd2 Rf3 Ke1 Rc3 Rb1 a1R Rc1 Ra2 Ra1 Rc1 Q2b4 Rd2 R1a2 Rb2 Qc3 Rbb1 Qa1 Rc8 Qab2 Rcc1 Rh3+
R3nBrR/Q4pQR/Rnp4P/1NP2R2/5N2/qb1B1k1N/1Q1brb2/5Kb1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 f4 c6 e4 Bb7 e6 Rh7 f5 Rh8 e5 Bc8 f6 Qe7 Bf4 Kd8 fxe7+ Kc7 Bd2 Kb7 Bc1 Kc7 e8N+ Kb7 b4 d5 h4 a5 c4 g5 h6 a4 h5 d4 b6 d3 b5 g4 c5 a3 h7 a2 e7 g3 e6 g2 Ng7 Na6 e8R Nb4 e7 Bh3 Qg4 Nd5 Bh6 Ngf6 Nc3 Rg8 h8R d2+ Ke2 Rc8 Ne6 d1Q+ Kf2 Qa4 Qg7 Qa3 Bd3 Ra8 Nf4 Be6 Ngh3 g1B+ Kf1 Ra5 Rc8 Ne8 Ra8 Ra4 Ra6 Kc8 b7+ Kd7 b8Q Re4 b6 Re2 b7 Nb6 Qa7 Bb3 Nb5 Bf2 Re1 a1B Rb1 Bad4 b8Q+ Nc7 e8R Be7 Kg2 Bg5 Kf1 Bg1 Re5 Bdf2 Rf5 Ke7 Ra1 Kd7 Nd5 Bd2 Ndf4 Ke7 Qaa8 Ne8 Qbe5+ Kd7 Qb2 Qb4 R1a5 Qa4 Qb8 Qa3 Ra8 Ke7 R5a6 Kd7 Ng6 Ke6 Qa7 Bfe1 Rh2 Bef2 Bf4 Nd7 Bd6 Nb6 Bf8 Re5 Ng5+ Kd5 Rh4 Ba4 Nh3 Bc2 Be2 Bb3 Ngf4+ Ke4 Bd3+ Kf3 Rg4 Bd1 Rg6 Re7 Rgh6 Bb3 R6h7 Re2 h6
n2B1b1r/1n1pP3/1N1PnqkN/n1N4R/2BQ1p2/2NbQ1RK/7Q/N4rB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qa5 c4 Qc7 c5 Qd8 Kf2 g5 Kg3 a5 h4 f5 c4 Kf7 d4 a4 e4 g4 h6 a3 d5 a2 e6+ Kg6 h7 Be7 c6 Ra7 h5+ Kf6 c7 Bd6+ e5+ Kg7 b6 Bb7 c8N Qc7 h6+ Kg6 e7 Kf7 c5 Qd8 c6 Ra4 c7 Na6 Bg5 Nc5 Qd4 Rb4 Bc4 Ra4 Rh5 Ra5 Ne2 Ba6 b7 Rb5 b8Q Nb7 Nec3 Rb3 Na3 Rb5 Nb6 Kg6 c8N Qf8 e8Q+ Qf7 Nc2 Ne7 Nba4 Rb3 Nc5 Rb1 Nb6 Nc8 Bd8 Bf8 e6 Rf1 Rc1 Bb5 Na1 Ba6 Kh2 g3+ Kh3 g2 Qh2 f4 d6 Bb5 Qe7 Qf6 Rb1 Ba6 Rb3 g1N+ Kg4 Nf3 Kh3 Rg8 h8B Bb5 Bg7 Rh8 h7 Ba6 Bd5 Bd3 Bc4 Qf7 Bf6 Qg7 Bh4 Qf6 Bf2 Ng5+ Kg4 Na7 Bg1 Nb5 Ra3 Nc7 Rb3 Na8 Kh4 Rg8 h8N+ Kf5 Nf7 Kg6 Nh6 Rh8 Nc2 a1N Ra3 Nf3+ Kh3 Nb3 Na1 N3a5 Qe8+ Kg7 e7 Kh7 Qe3 Nd4 Rb3 Ne6 Qf7+ Ng7 Qd5 Kg6 Qdd4 Ne6 Rb2 Rh7 Rf2 Rh8 Rf3 Kg7 Rg3+ Kh7 Ng4+ Kg6 Nh6+
n4nQ1/1PQ3P1/1rN1rR1K/4ppBb/B2R1rN1/2R1qRk1/7b/Rr1Q2N1 b - - 0 1 illegal: No proof kernel
2nk3B/Pb1Bb1Br/Q4qb1/1RP1N2B/2Q1p3/Q2b1pR1/2r1N3/nKNB4 b - - 0 1 illegal: No proof kernel
3R1rQr/PRKN1n1P/1rQ4B/5p1B/1k1p2N1/Q2qrb1N/nB6/1B1Bb3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Ke3 d5 Kd4 b5 h4 g5 a4 f5 c4 g4 e4 g3 c6 g2 Kc5 b4 h6 b3 e6 b2 h7 Ba6 e5 Nf6 c7 Qc8 Kb6 Ne8 c5 Nc6 h5 Rg8 h8B Nd8 c6 Ra7 h6 Ng7 h7 Qd7 c8Q Nh5 c7 Nf4 Nd2 b1R+ Nb3 Nc6 Qf3 Bb5 a6 Qd8 a5 Rg3 Bd3 Nh5 Nh3 g1R Nc5 Rb3 Bb1 Bh6 Nd7 R1g2 Rd1 Bg7 Bh6 Ra8 a7 Nb8 a6 Rb4 Qc3 Rc2 Qc6 Re3 Ra2 Rcc3 Rb2 Ng3 Kb7 Ne2 Rd3 Ke8 e7 Nc1 Rb3 Kf7 e8N Ke7 e6 Na2 Nef6 Rcc4 Ng4 Bc3 B8g7 Be1 Bb2 Rc2 Qc4 Kd6 e7 Rg2 e8B Nc6 Bh5 Ne5 Rd2 Nf7 Qc6+ Ke7 Qb8 Rg1 c8Q Be2+ Qb5 Rg2 Qc6 Bf3 Qg3 Rc8 a8B Rge2 a7 Rg2 Nb8 Qd6 Qbb6 Rf8 Nd7 Rb5 Rd4 Qa3 Rbb4 Qd3 Kc7 Rge2 Qa6 Rb6 Ngf2 Rh8 Qg8 Rd2 Ng4 Rde2 Rdc4 d4 Rc5 Rc2 Rd5 Rc4 Rbb5 Rb4 Rd6 Rb8 Rb7 Rf8 Nb8 Rb6 Rd8 Nc1 Nd7 Na2 Qc2 Ke6 Qc3 Kd5 Qc2 Qb5 Qe4+ Kc4 Qc6+ Kb3 Qd6 Bd1 Rbb8 Bd2 Bf3 Be1 Qc6 Qd3 Rb7 Kb4 Be2 Bb3 Bf3 Bd5 Bd1 Bf3 Qa3+
1QrN4/kqq2Q1B/4N1R1/n1R4R/3KpqrP/B1RbP1B1/1R3rnp/Q7 b - - 0 1 illegal: No possible last move
nNb2b2/2B1n1kq/4BNn1/R3B3/r1NPp1KN/1Rq3QR/p2QP3/3b1N2 b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 Kf2 h5 Kg3 c5 d4 f5 b4 e5 b6 e4 b7 a4 d6 a3 b5 c4 b6 c3 d7+ Ke7 Bh3 c2 Nd2 Na6 b8B Nc7 b7 Na8 Ngf3 Qa5 d8N Qc3 Nf1 h4+ Kf4 Be6 Nf7 Bb3 Bc7 a2 b8N Ke8 Qd2 Ne7 g8R Rh6 g7 Ra6 g6 Ra4 Kg5 f4 Be6 h3 Kg4 h2 Nh4 f3 Ne5 f2 Ba3 c1N Rb1 Nd3 Bad6 Bc2 Rb3 Nf4 Nc4 Bd1 Be5 Ra6 Rh8 Ra4 Rg1 h1Q g8Q Qh2 g7 Nfg6 Rg3 Qh1 Rh3 Qh2 Nfe3 f1B Rh5 Bg2 Nf1 Qh1 Qh8 Qh2 g8N Bf3+ Kg5 Bg4 Qf6 Qh1 Qff4 Qh2 Qg3 Qh1 Bc8 Kf7 Nf6 Kg7 Be6 Bf5 Bd5 Bc8 Be6 Qg1 Kg4 Qge3 Bed6 Qh6 Ra5 Qh7 Be5
QNBRn3/2p3Q1/3b1QBQ/2PRq2P/2b1p1N1/rkB1Rqq1/2b3r1/3Q3K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 e4 d5 exd5 e4 a4 Nd7 axb5 Ne5 fxe5 Qe7 Na3 Qg5 Nb1 Qd8 Kf2 Ke7 Kg2 f5 c4 a5 d4 g5 b4 g4 h4 f4 d6+ Ke6 h6 g3 b6 a4 c5 Kd5 h7 a3 b5 a2 b7 Ra7 b8Q Be6 b6 Bf5 b7 Ra4 h5 Nh6 e6 Qf6 e7 Rb4 e8B Ng8 d7 Rb3 d8Q+ Bd6 Na3 Bc8 Nc2 Ra3 Ne3+ Ke6 d5+ Ke5 Bb2+ Rc3 Ng4+ Kf5 Ne2 Ra3 Bc3 Be6 Rh3 f3+ Kh1 f2 Qa8 Bd7 b8R Ba4 Qe7 Bc2 Nd4+ Kf4 Bc4 f1B Ba6 Bc4 Qg7 Qf8 Nc6 Nf6 Rab1 a1Q Rd8 Rg8 Bg6 Ne8 h8Q Qf5 Bc8 g2+ Kg1 Qe5 Nb8 Qa2 Re3 Qb3 Bd4 Qd3 Rb3 Qe2 Rbd3 Qf3 Bc3 Qe2 Kh2 g1Q+ Kh3 Qge1 Rd4 Qd3 Kg2 Qg3+ Kh1 Qe2 Rd2 Qef3+ Rg2 Be7 d6 Bf8 d7 Bd6 Bf7 Kf5 Bg6+ Ke6 Qhh6 B4d3 Qa4 Kd5 Qa5 Kc4 Qa8 Qf7 Rge2 Kb3 Rd2 Bc4 Rd5 Nf6 Rf8 Ne8 d8Q Qff2 Qdf6 Qff4 Rd2 Qff3+ Rg2 Qe2 Qgh7 Qg5 Nh2 Qgf2 Bgf5 Ng7 Rd8 Ne8 Rg1 Rg6 Q7g7 Qff4 Rg2 Qe5 Rf2 Qeg4 Rd2 Qg5f4 Rd5 Qe2 Bfd7 Rg2 Ng4 Qg3 Bf5 Qef3 Bg6
Bq4R1/3B3R/r3QNK1/1Nb2r2/Pp5k/r1QB2n1/pP1B1n2/R1q1BN1q b - - 0 1 illegal: No proof kernel
5RR1/1nKpN2Q/1N1r1qBB/nN1QB1q1/3P1pr1/1Q2Q3/1rb1kP2/Q3n3 b - - 1 2 legal: proof: e4 f5 a4 c5 g4 h5 gxh5 b5 axb5 e6 b4 Nc6 bxc5 Be7 e5 Bf6 exf6 Nb8 Ke2 Kf7 Ke3 a5 Kf4 g5+ Ke5 g4 Kd6 f4 c4 a4 h4 g3 h6 Kg6 h5+ Kg5 c6 a3 c7 g2 b6 e5 f7 e4 f8B e3 b7 e2 c5 Kg4 h7 a2 h6 Ra3 c6 Rc3 Na3 Rc4 Nf3 e1R Bb2 g1N Nd4+ Nf3 Nf5 Rce4 Nb5 Re7 Bd3 R7e2 Ne7 Na6 b8Q Rf1 Bg6 Ne1 Rg1+ Kf3 Be5 Bb7 c8N Nc2 c7 Be4 Nb6 Nc5 c8Q Ne1 Qa6 Bb1 Qaa7 Bc2 Rc1 a1Q d3 Qe8 Kc7 Nb7 Qd2 Qf7 d4 Qb1 Qa1 Qf6 Qda5 Qb3 Q5a2 Qd3 Qd5+ Qe4 Rg5 Rg1 Rf5 Qg5 Bfg7 Rg4 Rf8 Rd2 Rb1 Ke2 Rb3 Nd6 Rg3 Qef5 Qbb7 Qf7 Qb3 Qff5 Q7d5 Nb7 Rg1 Na5 Rg3 Nf6 Rg2 Rg8 h8Q Ne4 h7 Nc5 Bh6 Ncb7 Qg7 Qe6 h8Q Qef6 Qhh7 Rh8 Qgf7 Rg8 Qe8 Rg7 Ng8 Re7 Rg1 Re6 Ne7 Rd6 Qef7 Bd1 Qfe6 Rb2 Rg3 Bc2 Rg2 Rg3 Qh3 Rg4 Qhe3+ Kf1 Qh8 Qh5 Bf5 Rh4 Rgg8 Rg4 Qh7 Qhg5 Qec3 Ke2 Bg6 Ng2 Qg3 Ne1 Qge3+
R7/1bpB2bK/N2Bq3/R4nNB/BrP4N/7b/kpqqB2P/n1Q3QQ b - - 0 1 legal: proof: g4 e5 b4 b5 d4 a5 dxe5 h5 bxa5 Nh6 gxh5 Ra7 e6 Rg8 f4 Ke7 e4 Rh8 f5 Qe8 Bd2 Kd6 Bc1+ Kc6 e7 Qd8 e5 Ng8 Bd2 Ra6 Be3 Kb7 Bc1 Re6 fxe6 Kc6 Kf2 Kc5 Kf3 Kb4 Kg4 g5 Kf5 d5 e8B g4 a4 g3 c4 d4 a6 d3 a5 f6 Kg6 d2 a7 g2 a8Q f5 a6 f4 h6 f3 e7 f2 h7 Bd7 e6 Nc6 a7 Nf6 Na3 Ng8 Nh3 g1Q+ Ng5 Bc8 Bd7 Nb8 e8B Na6 e7 Bb7 Nc2+ Kb3 Be2 f1B Ba3 b4 Qc1 d1Q Bf7 Qgd4 e8B Bg7 Qb8 Qg4 a8Q Qh3 Qba7 Nh6 Qg1 Nc5 Ra2 Rf8 h8N Qe6+ Kh7 Nf5 Bfh5 Bh3 Ng6 Qd2 Nh4 Qd3 Ne1 Qc2 Nd3 Rg8 Bb5 Qd4 Bed7 Rb8 Ra1 Qdc3 Ra2 Q3d2 Ba4+ Kc3 Ra1 b3 Nb4 b2 Na6 Nb3 Ra2 Na1 Bd6 Qd3 Bac6 Kb3 Ra5 Qde3 Ba4+ Ka2 Bac6+ Qa4 Qc2 Nb3 Re5 Qd2 Qc5 Bc8 Nb4+ Ka3 Rc1 Bh8 Qg1 Rb6 Rb1 Bg7 Qcc1 Ba6 Bb5 Bc8 Qah1 Bb7 Rc5 Na5 Rd5 Qac2 Re5 Nb3 Bbc6 Nbd4 Ra1+ Kb3 Ra8 Rb5 Nd3 Rb4 Ba4+ Ka2 Rea5 Nb3 Nc5 Na1 Na6
r2nn2r/7P/1NR1B3/2p2BQ1/6RQ/R1qpk2r/qQPb3N/RRq1BK2 b - - 0 1 legal: proof: g4 e5 d4 b5 f4 h5 gxh5 b4 e4 b3 f5 Bb7 dxe5 Nh6 axb3 Bd5 b4 Be6 fxe6 Ng8 b5 Rh6 Ne2 Rh7 Ng1 Rh8 h4 Ke7 b4 f5 h6 c5 h5 a5 h7 d5 b6 g5 b7 a4 b5 g4 b6 f4 h6 d4 Rh4 g3 Bd3 g2 Na3 f3 Qd2 Nd7 b8R Bg7 b7 Bf8 Nc4 a3 Qg5+ Ngf6 Nb6 a2 Rg4 Ra3 Bd2 Rg8 h8Q Ke8 e7 Kf7 e8R Ra8 Re6 Ne8 Rc6 Qf6 e6+ Ke7 h7 Bh6 e5 Nf8 Bf5 d3 Qh4 Bg5 Qg7+ Qf7 Kf2 Rh8 Qg8 Qf6 Be1 Bc1 Qgg5 Bd2 Ne2 g1R Ng3 Rh1 Nf1 Rh3 Nh2 Ra7 Kg1 f2+ Kf1 Ra4 Ra8 Ra5 Rb1 a1Q b8Q Qa2 Ra1 Ra3 Ra5 Ra4 Rb5 Ra8 Ra5 Ng6 Ra3 Nf4 Rb1 Kf8 e7+ Kf7 Qb7 Ne6 Ra1 Nd8 Rb1 Nc7 e8B+ Ke7 Bed7 Ne8 Qb8 Kf7 e6+ Ke7 Rc7 Kd6 e7 Qc3 Bde6 Ke5 Qb7 Bf4 Ra1 Kd4 Rc6 Ke3 Qgh5 Nf6 e8R Bh6 Reg8 Ne8 Rg1 Bf4 R8g4 Bg5 Qa6 Bf4 Qb5 Bg5 Qb2 Bf4 Kg2 f1Q+ Kh1 Qe2 Q5g5 Qed2 Bg3 Ke2 Rgb1 Qc1+ Kg2 Be3 Be1 Bd2 Qe7 Ke3 Kf1 Qcb3 Qef6 Qc3 Qfg5#
N2R3n/4n1p1/NQ1B1Q2/2Bbr3/KR3N2/R6P/kbR1qpPb/1q1nR2B b - - 0 1 illegal: Other
7Q/4pb1Q/1b1RP3/2n1BNp1/1KNq1b1b/NQ1RP2B/1b4n1/Bk1rNN2 b - - 0 1 illegal: Other
5bNr/4pr2/1N1PR1Np/4B2Q/Qr1r2nR/1B2kN1B/qRrN3P/5Kn1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 e4 Qd6 d4 Bg7 e5 Qd8 d6 Kf8 d5 Bd7 e6 Bh6 exd7 Kg7 Ne2 Kg6 Ng1 Bf8 b4 Qe8 d8N Kf5 d7 Ke4 g4 f5 d6 a5 g6 c5 b6 a4 b5 h6 g5 f4 g7 a3 g6 c4 b7 a2 b6 c3 Nf7 c2 d8Q f3 Qd7 Nc6 b8N Nb4 b7 Ra7 Ne5 Qf7 Nd2+ Kd4 Bh3 Nf6 g8B Ra4 g7 Qb3 Ng6 Nbd5 Bb2+ Nc3 Qf5 c1R Qh5 Kd3 Nd7 Ne2 b8R Rf4 Rb1 a1R Rb4 Ra4 Nb6 Qa2 Bc3 Rc4 R1b2 Rh4 Rf4 Rb4 Kf2 Rg4 Qa4 Rc2 Bb3 Rh4 g8N Rg4 Rf5 Rgc4 Ke1 Re4 Rf4 f2+ Kd1 Rec4 Rh4 Ng4 Bf6 Nd4 Bg7 Nf3 Bf6 Rd4 Bg7 Kc3 Ke2 f1R Bf6 Ng5 Bg7 Rf7 Ke1 Kd3 Bf6 Ne6 Ngf3 Nf4 Rf1 Ne2 Rf2 Rb5 Kf1 Ng1 Re2 Rbb4 Re6 Rd5 Ne4 Ke3 Be5 Rdd4 Nd2
2BK1R2/B2p1bn1/5Q2/QN1Q1BPp/rR2RB1P/bN3rr1/B3r2k/2b1q3 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 fxg5 f4 d4 Nc6 dxc5 Nd4 Ne2 Bg7 Ng1 Nf5 exf5 Bf8 Ke2 Kf7 Kf3 h5 Ke4 e5 Kd5 a5 h4 a4 c4 f3 g4 f2 b4 e4 c6 e3 b6 e2 f6 Kg6 c5 e1B b7 a3 b8Q a2 c7 Ra5 f7 Ra8 c6 Bb7 c8B Rh7 b5 Ra3 b6 Rf3 Qf4 Ba3 f8R Rh8 Nc3 Bb2 Kd6 Qe7+ Kc7 Ba3 Nge2 Qe3 Qf6+ Kh7 g6+ Kh6 g7+ Kh7 g5 Qd2 Bh3 f1R Nb5 Rg3 Ned4 Nh6 Kd8 Rff3 c7 Bd5 b7 Bf7 b8B Nf5 Rb1 a1R Nb3 Qc3 Qdd6 Bd2 Qd5 Bf4 Rb2 Qe1 Ba7 Ra2 Re2 Rc2 Re4 Re2 Qfe6 Bd2 g8B+ Kg7 Qee5+ Kg6 Qc3 Ng7 Qa5 Bdb4 Bce3 Bc1 Bf4 Bba3 Rh2 Ree3 Rb2 Re2 Ba6 Rh6 c8Q Rh8 Qcc3 Rh6 Bc8 Rh8 Qdd2 Rh6 Bf1 Kf5 Qf6+ Kg4 Qd5 Rh8 Bg2 Rh6 Bh1 Kh3 Bg2+ Kh2 Bh3 Rh8 Bf5 Rh6 Nc5 Rg6 Rbb4 Rh6 Nb3 Rg6 Qb2 Rc6 Qf6 Ra6 Qc7 Ra4 Qa5 Bg6 Bge6 Bf7 Qd6 Be8 Nc5 Rc3 Ba2 Rf3 Nb3 Bf7 Qd5
1K1Q3r/4P1QN/3p1rBQ/nB2N2n/1pqR2R1/1P4NQ/kb1B1Q2/4nn1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 b4 d4 Ba6 dxc5 Bb5 axb5 Qa5 Be3 Qb6 Bc1 Qd8 Kd2 Ke7 Ke3 Ke6 Kd4 g5 h4 a5 e4 f5 c4 f4 b3 f3 c6 f2 c7 g4 c8B g3 h6 a4 h5 a3 h7 a2 b6 g2 c5 Ra6 c6 Qe7 b7 Qf7 h6 Rb6 c7 Qg6 Na3 Rc6 Qd2 Rc5 Nc4 Bd6 Rh4 Qf7 Rg4 Qg6 Ne2 g1R Ng3 Na6 b8Q Ke7 e6 Qf6+ e5 Rc6 Kd5 Kf8 e7+ Kf7 e8N Qg5 Nf6 Qf4 e6+ Ke7 Qa7 Rh1 Ne5 Nb8 Bb5 f1N Qaf2 Ra6 Qc3 Nc6 Bd2 Na5 Rd1 a1N Bb7 Nc2 c8Q Bc7 Kc5 Ne1 Be4 Bd8 Bg6 Bb6+ Kd5 Bd4 Qcf3 Bb2 Q3g2 d6 Qh3 Ra8 Qc1 Rf8 Qc8 Nc4 Kc6 Na5+ Kc7 Qc4+ Kb8 Rf7 Bg5 Rf8 Rdd4 Rf7 Bd2 Rf8 Nfe4 Nf6 Ng5 Rf7 Qg8 Nh5 Qc8 Rf5 Qe8+ Kf6 e7 Rf8 Qd8 Rg8 Ngf3 Ke6 h8Q Rf6 Qg7 Rh8 Rde4 Kd5 h7 Re8 h8Q Ref8 Qhh6 Rh8 Qfh2 Kc5 Ng5 Kd5 Nh7 Kc5 Ref4 Kd5 Be4+ Kd4 Bc1 Kc3 Bg6 Qf7 Re4 Qc4 Bd2+ Kc2 Qg1 Kb1 Qf2 Ka2 Rd4
2Nnn3/2bR2Q1/B4nq1/1Rq2Qp1/2n2p2/BNQ1PP1Q/1R6/Nb1Qrk1K b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 h4 c4 h3 gxh3 Na6 h4 Nb8 h5 Rh7 Bd2 Rh6 Bc1 Rh8 b4 a5 c5 a4 b6 Be7 c6 Ra7 b5 Rb7 cxb7 Bf8 h4 Ke7 e3 Ke6 f3 g5 Kf2 d5 Kg2 c5 h6 f5 h5 f4 h7 d4 h6 Kd5 e6 a3 e7 a2 e8N d3 Ne2 Kc4 Nd4 Nf6 Nc2 Qd6 Ba3 Na6 b8Q Nc7 b7 Bf5 b6 Be7 Kh2 Bd8 Nd2+ Kc3 Nb3 c4 Kg1 d2 Rb1 a1N Rb2 Qc5 Nd6 Nce8 Kh2 Bc7 Qa7 Bg6 b8R Qf5 Ne1 Nc2 b7 Nb4 Nc2 Nc6 Nc8 Nd8 Nca1 Qe6 Qc5 Bb1 Qf5 Qg8 Rg1 Qf7 Kh1 Qg6 Qe2 d1N Qh2 Rf8 h8Q Rg8 Qg7 Rh8 Rgg2 Rh7 Rbd2 Nb2 Rd7 Rh8 Qhh3 Rh7 Nd4 Rh8 Be2 Kd2 h7 Ke1 Ndb3 c3 Ba6 Nc4 Ra2 c2 Rb2 Rf8 h8Q c1Q Ra8 Qc3 b8Q Qe5 Qa7 Qc5 Rb8 Rf7 Rb5 Re7 Qgh6 Rh7 Q6g7 Rh4 Qb6 Rg4 Qd6 Rg3 Qh2 Kf1 Qhc2 Rg2 Qc3 Re2 Qd1+ Re1 Qhh3#
3RNR1n/qQQ2B2/1N1Bq3/r3k1bK/1Rr1pR1P/bQRb4/p3P3/2b3N1 b - - 0 1 illegal: No possible last move, all moves rejected
q7/1n1k2rb/rBRpN1B1/QR1rQ1NB/r2NK3/2pP2b1/1RB2BP1/3q4 b - - 0 1 legal: proof: h4 e5 b4 g5 hxg5 b5 a4 e4 axb5 Na6 b6 e3 b7 Ke7 c4 Nh6 c5 Ng8 b5 Nb4 fxe3 Ke8 e4 Nd5 e5 Nb6 cxb6 Qe7 Rh4 Qf6 Rh1 Qd8 Kf2 h5 Kf3 c5 b8Q f5 e4 a5 d3 h4 b7 f4 e6 a4 e5 c4 b6 c3 g6 h3 e7 a3 g7 a2 Ne2 h2 Nd4 Rh7 Be2 Ra3 Be3 Rh4 Bf2 Ra8 Ke4 Ra4 Nd2 Ra3 N2f3 Rg4 Rb1 a1R Rb2 Ra5 Qa4 Rh4 Ng5 Nh6 g8B Nf5 Bb3 Rd5 Qa5 Rg4 Qc7 Ra4 b8R Bh6 Re1 h1R b7 Bg7 Bbd1 Rh6 Bc2 Ra6 Rh1 Rg3 Rh6 f3 Rc6 Bf6 Nh7 Bh4 Ng5 Ne3 Qd6 Nc4 Qdc5 d6 Rb5 Kd7 e8B+ Ke7 Bg6 Be6 Rb2 Bg8 e6 Bh7 Qcb5 Ne5 Qc5 Nf7 Bed1 Ke8 e7 Kd7 e8N Qc8 Nc7 Nd8 Nce6 Rg4+ Ke3 Bg3 Qcb5 Rf4 Be2 Rf7 Ke4 Rg7 Qb3 Rb5 Qd5 Rc5 Qe5 Rd5 Bg1 f2 Bh5 f1Q Bf2 Bh4 Ra8 Qg1 b8B Qd1 Bc7 Nb7 Rb8 Bg3 Bb6 Qe8 Rc5 Qg8 Rbc8 Qd8 R8c6 Qa8 Rcb5
N3b3/3n1kp1/2Kp1n2/1B4R1/nN1NrRNb/QNQ3rP/nn4PB/RQ6 b - - 0 1 illegal: No proof kernel
1B1r1nr1/n1pRRp2/1r1Q4/1n4bK/bk1P3Q/2RN4/2PN2Q1/NBn3NN b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Be6 fxg5 Bc8 h4 Bb7 g4 Bh6 g6 Bc8 h5 Na6 g5 Bf8 g7 Nb8 Nc3 Qd6 Nb1 Qg6 hxg6 Bf5 Qh5 Bd7 Qd1 Bc8 Ke2 Kd7 Kf3 Kd6 b4 e5 b6 a5 b7 h5 b5 Kc5 d6 h4 b6 a4 d7 h3 Kg4 a3 Bc4 e4 Ba2 Ne7 g8Q e3 g7 e2 g6 e1R Qh7 h2 g8N Kb4 g7 Re5 Nh6 Ra4 g8Q Ra6 Nf5 Ra4 d8R Ra6 Kh5 Re2 Qg2 Bh6 Rd7 Nbc6 b8N Bb7 Ng3 Bc8 b7 Na7 Nc6+ Kb5 b8N Bg5 Na5 Ng6 Nb3 Rb6 Na6 Rd8 Nac5 Ree8 d3 Rh8 N1d2 Nf8 Bb1 Rg8 Qhe4 Bb7 Qh4 Bc6 Re7 Bd7 Bb2 Be8 Bd4 Kb4 Ra2 Bd7 Na1 Ba4 Rb2+ Ka5 Rb3 a2 Rc3 Kb5 Ngf3 Kb4 Rf1 h1N Ng1 Nf2 Nh1 Ne4 Rf5 Kb5 Rd5 Kb4 Rdd7 Nd6 Qde2 Bh6 Qe5 Ndb5 Qd6 Bg5 Nab3 a1N Be3+ Ka3 Bd4 Rb7 Be3 Nc6 Na6+ Nb4 Ba7 Rb6 Nac5 Nc6 d4 Kb4 Na5 Nb3 Bb8 Nc1 Nab3 Nca7 Na1 Be3 Qgh3 Bh6 Qg2 Bg5 Nd3+
1n3R2/N1b3Q1/npR1N3/1PrN3Q/Qn2K1Bp/Bp1P1Qr1/3k4/qBb2Q2 b - - 0 1 illegal: Other
6Bb/R6p/NbqbKB2/p3pB2/2QRP3/QR1Q2nr/n1P3rk/2RR2N1 b - - 0 1 illegal: Other
1bQ3KB/1B2p3/3RPp2/3bNp1k/NPN1R1nQ/2r1rQ2/1Rn2Q2/4bQ1q b - - 0 1 illegal: Other
QbQ3K1/r2pP3/nB2R1Rb/N1QR1B1N/1N1pNP1q/8/p1b2N2/k3nr2 b - - 0 1 illegal: Other
r1B1nBk1/N1PbQ3/p1B2QRp/NRK2QP1/4qn2/3Rp1R1/1R3b2/1r3n2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a6 b4 h6 g4 e6 f4 Nf6 c4 Be7 c6 Qb6+ c5 Bd6 c7 Kg8 g6 Rh7 g7 Bf8 g5 Be7 Qd3 Qd6 c6 Qd7 b6 Qe8 b7 Ng4 b5 Ne5 f6 Nf7 b6 Nd8 f5 Bf8 Bg2 Qf7 Nf3 Qe8 Ne5 Be7 Bb2 Qf7 Nc4 Qf8 Nc3 Bd6 Ra3 Nf7 Rd1 Nd7 b8R Qe7 b7 Bh2 Nb5 Nb6 Na5 Nd7 Na7 Qe8 Qc2 Nb6 Rdd3 e5+ Kc5 Be6 c8B d4 c7 e4 Rg3 Nd6 Rad3 Rh8 Bc3 Bd7 f7+ Kh7 f8Q Bg1 g8R Bf2 f6 Nd5 f7 Nf4 Rg6 Qe6 N5c6 Ne8 Qe7 Rg8 Na5 Rf8 Rde3 d3 Bg7 d2 Qf6 Rh8 f8Q d1N Q8e7 Rf8 Qd3 Kg8 Qd5 Rf7 Qdf5 Rf8 Kb4 Rf7 Rd3 Ne3 Kc5 Nf1+ Rge3 Bh4 Rg3 e3 Bc6 Qe4 Rg1 Rf8 Rg2 Bf2 Rg3 Be6 B8d7 Nd6 Re8 Nc8 b8R Nd6 Rec8 Re8 Rb6 Rf8 Rcb8 Re8 R8b7 Reb8 Bc8 Bd7 Rb2 Nf7 Ra2 Nd6 Rbb3 Rb4 Rc2 Ne8 Re2 Ra4 Rb5 Ra1 Reb2 Rb1 Bf8+
Bb1KB1qB/1p1R1b2/3pQn2/3P2k1/RN3n1r/1p2QQ1P/B2b1N1R/4rB2 b - - 0 1 illegal: Other
3bn3/PRNr4/2p1Qb1k/r7/2BpKPB1/Bb2Q3/n1BB1qNp/N3R1R1 b - - 0 1 illegal: No proof kernel
3B1b2/P1R2kq1/1p1r4/1p1R1NQP/BQ1B4/1n2K1RN/p1Q2nr1/1b1B2nB b - - 0 1 illegal: Other
RrN3Q1/2Q1KQ1Q/5p1q/b4b1q/B5r1/B1P1kp1R/npn2NNP/1R1Q4 b - - 0 1 illegal: Other
b1Rb4/NR2r2q/3pnpQ1/p2PNPRr/1N2Q1nQ/8/2R3Bk/3KBR1q b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 d6 gxh5 Kd7 a4 Rh6 axb5 Ke6 e5 Kf5 e6 Qd7 exd7 Ke6 Ra4 Rh7 Ra1 Rh8 d8Q Ke5 f4+ Ke4 h4 e5 c4 a5 d4 g5 c6 g4 b6 g3 d5 g2 c7 f6 f5 Rh6 b7 Rh7 c5 Rh6 c6 Nd7 b8R Bg7 Qe8 Bf8 Bd2 Rh8 h6 Rh7 h5 Ba6 c8R Rf7 c7 Bg7 h7 Bf8 h8Q Rg7 h6 Rg5 h7 Rh5 Qg7 Bb5 h8R Nh6 Na3 Nc5 Nc2 Bc6 Rh2 Ng4 Nf3 g1Q Qgg6 Qh1 Rg8 Ne6 Nb4 Be7 Rb7 Ra7 Rf2 Qh2 Bg2 Bd8 Bc3 Kf4 Qd4+ Kg3 Rc2 e4 Kd1 e3 Ne5 Qh4 Be1+ Kh2 Rb1 Rg5 Qd2 Qh7 Qf2 Rh5 Qgf7 Rh6 Rg5 Rh4 Qg6 Rh5 Rb6 Ba8 Rb7 Be7 Qb5 Bd8 Qd3 Qg7 Qe4 Qf7 Rcb8 Qh7 c8N e2+ Kc1 Ra6 Na7 Rc6 Rc8 Rc7 Bc3 Rg7 Kd2 Re7 Rf1 Nf8 Kc1 Ne6 Be1 Nf4 Bd2 Re6 Rd1 e1Q Bc3 Qh1 Rf1 Re7 Kd1 Ne6 Bd2 Re8 Be1 Re7 Qh4+
R1q1B1NB/2Q3qb/2p1r2N/4RPnP/2Qb4/2BRNp1p/B1nr4/1k1B1K2 b - - 0 1 illegal: No proof kernel
1N1R2K1/Q2R2B1/rPNpR3/p1R4b/QNQ1n1p1/4r2P/2n2Rq1/1Bq2kb1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 f4 g5 c4 g4 b4 e4 h3 e3 c6 e2 h6 e1Q c5 d6 c7 Bb7+ c6 Ra6 c8Q Rb6 h7 Qde8 Rh2 Q1e7 Bb2+ Kf7 f6 Kg6 f5+ Kg5 f7 Kh4 f6 Kg3 Na3 Nd7 Ne2+ Kf3 Qa4 Ba6 c7 Nh6 Nc2 Rc6 b6 Nf5 b7 Rc3 b8N Bg7 f8R Nd4 f7 Bb5 Re1 Nc6 Ned4+ Kg3 Rhe2 Bd3 b5 Bf6 b6 Bg7 Nb4 Rg8 h8Q Ra3 Qh7 Nc5 Qe6 Q8d7 c8R Bg6 Rfd8 Bh5 f8R Qb7 Rf7 Qec7 Rfd7 Re3 Qf7 Ne4 Ke6 Bf6 Bg2 Kh2 Bf1+ Kg1 Qhg7 Ne5 Ndc6 Nc4 Qh7 Bh4 Bg7 Bf2 Ke7 Na3 Qc4 Qa8 Ke6 Rf8 Ke7 Rf7+ Ke8 Re7+ Kf8 Nc2 Kg8 Qab7 Rd2 Qa8 Bd3+ Kg2 Rde2 Qab7 Rb1 Qa8 Rb3 Kf1 Ra3 Bg1 Rc3 Na3 Bb1 Nc2 Re8 Rf7 Re6 Qab7 Na7 Qd5 Nac6 Qd2 Rcd8 Qb7 Qcb5 Qc1 Rc5 Qa8 Rb7 Rc7 Qc4 Rc8 Rd7 Rc7 Qa6 Ra7 Qc8 Ra6 Qc7 Ng3 Qa7 Qb7 Qd3 Ne4 Qc4 Nc3 Nd4 Qg2 Ndc6 Ne4 Rf2+
2QBr1R1/R4K2/1pP1NQ2/1r1N1q1R/1Pq1B1pn/1RR2Q2/pbbN4/4kn2 b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 h5 dxc5 b6 a4 h4 a5 h3 a6 Bb7 gxh3 Qc8 h4 Qc7 h5 Bc8 Bd3 Rh6 Bf1 Qb7 axb7 Rh8 Ke2 Kf7 Kf3 Kf6 Ke4 e5 Kd5 g5 f4 a5 c4 e4 h4 g4 b4 e3 h6 a4 h5 d6 c6 e2 c5 e1Q c7 a3 c6 Nd7 b8R Ra6 h7 Qh4 h6 Qh3 Bd3 Ra8 Ne2 Qf1 Rh3 Nc5 Nd2 Ne4 Nc3 Ng3 Be4 Bg7 Qf3 a2 Rb1 Qa6 Rb3 Nf1 Rb7 Qe2 Ra7 Ne7+ Kd4 Ng6 Kd5 Rf8 h8R Nh4 h7 Re8 Rg8 Ba6 c8Q Bd3 h8R Bc2 Rh5 Qf2 Nb5 Qe2 Nc7 Re5+ Kd4 Rb5 Rg3 d5 Rc3 Ke7+ f6+ Kd6 f5 Rb8 Qb7 Re8 Qc8 Re5 f7 Re8+ f6 Qf2+ Qe3 Qf5 f8N Bh8 Qf3 Bg7 Rb3 Bh8 Kc3 Ke5 f7 d4+ Kc4 d3 Nfe6 Bg7 f8Q Bf6 Nb1 d2 Nd5 d1Q Bg5 Qc1 Nd2 Bh8 Qe3 Rd8 Nb1 Qf2 Ng7 Qf5 Ndc3 Re8 Bd8 Bd1 Qe2 Kf4 Nd2 Ree5 Kd4 Re8 Rd3 Ne3 Nd5+ Kg3 Qe7 Qc2 Qf1 Qc1 Qh3+ Kf2 Qf3+ Ke1 Qee6 Qg6 Ke5 Nf1 Qe7 Qh7 Ke6 Qc4 Kf7 Bc2 Qg5 Qh6 Qe5 Qg5 Ne6 Bf6 Qef5 Bb2 Qf6 Qf5 Rdc3
bN1R2KN/B2BNNNp/1r2P1pP/4Q2q/Q2n2k1/1qRnR2r/3Q2p1/1b6 b - - 0 1 illegal: Other
brB1NQq1/1p1K1n2/4QbpB/3R3q/Q3R1R1/N3R1p1/1nP1P3/1k1N2Rr b - - 0 1 illegal: Other
NbB4K/4N2P/n1R1r3/2Nrp2p/QR3N2/4k1pR/QQ1B2Pq/1N1b1r1b b - - 0 1 illegal: Other
1RR3kN/4q1nN/2Kpbn1Q/6p1/PRp3N1/1B1nBBR1/2P1bQr1/1R2b3 b - - 0 1 legal: proof: g4 e5 d4 g5 dxe5 a5 b4 b5 bxa5 f5 gxf5 Be7 h4 Ra6 h5 Rg6 hxg6 Bf8 Kd2 c5 Ke3 h5 Ke4 b4 Kd5 b3 f4 d6 e4 h4 a4 h3 g7 Kf7 e6+ Ke8 a6 h2 e7 Kf7 e8R b2 a7 Na6 a8B Qc7 e5 Qa5 e6+ Kf6 e7 Kf7 f6 Qd2+ Kc6 Qd4 f5 Nc7 Nh3 Qb4 Nd2 b1B Qe2 Nd5 Qf2 Ba2 Nc4 Ne3 Nf4 Qb3 Rb1 Nd1 Rg1 h1N Rg3 Nc3 Ng6 Rh3 Be3 Ba6 Rb8 Ne4 e8R Rh2 Rec8 Nh6 g8R Rg2 Rb4 Bg7 Be2 Qb2 Bf3 Qe5 Rcb8 Qe7 Rgc8 Qf8 Bb7 Kg8 Nce5 Be2 Ng4 Be6 Nh8 Qd8 Ba6 Qf8 Bc4 Qd8 Qf1 Nhf2 Bb3 Nd3 Qf2 c4 f7+ Kh7 f8Q Bc3 f6 Qe7 f7 Nf6 Qd8 Nf5 f8N+ Kg8 Qe8 Bd2 Qg6+ Ng7 Qh6 Be1 Nh7+
2B1q3/B4BQ1/1Rn3p1/BRnr1pKN/NPbQQ3/3B2PR/2r1rnkp/8 b - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 h4 g6 h5 d3 h6 Bg7 hxg7 Ba6 cxd3 Nd7 d4 Bc8 d5 Nb8 Kf2 Kd7 Kf3 c5 Kf4 f5 b4 h5 e4 a5 d4 a4 b6 h4 d6 Kc6 d7 h3 d5+ Kb7 d6 Kc6 g3 a3 e6 c4 e7 c3 e8B a2 b7 c2 e5 Nf6 g8Q Ra5 e6 Rh4+ Kg5 Qe7 d8B+ Bd7 Qd3 Rc5 Ba5 Rc3 Bf7 Na6 b8R Nc5 Be3 c1N Ne2 N1b3 Qg7 Rd4 Rb6+ Kd5 Nf4+ Ke5 Bg1 Rd5 Nh5 Bb5 d7 Rc2 d8Q Bc4 Nc3 Qe8 e7 Nd4 Na4 Nc6 Be6 Re2 Bc8 Rc2 Rd1 a1R Qf3 Rb1 Bd3 Rbb2 Rb5 Re2 Qb6 Rbc2 Qe4+ Kd6 Be3 Ng4 Qa7 Nf2 Qgd4 Qf7 e8B Qg8 Qag7 Qh8 Bf7 Qe8 Rhe1 h2 Rf1 Nh1 Rf4 Nf2 Rh4 Qf8 Qc3 Nb7 Bfe6 Re5 Rh3 Ne7 Qg4 Qe8 Ba7 Nc5 Bf7 Kc6 Nb2 Kd6 Ra1 Nc6 B5b6 Rd5 Ra6 Qg8 Ba5 Qe8 Qg8 Rde5 Na4 Rd5 Qa3 Ke5 Rab6 Rd4 Qf3 Rd5 Qh1 Kd4 Qb2+ Ke3 Qg2 Nd1 Qe4+ Kf2 Qa1 Kf1 Qad4 Nf2 Qgg7 Kg1 Qee3 Kg2 Qee4+
1RN2NNR/2prNR1N/p3Q1Bb/r1bB4/k4P2/1qP2r2/n2K2p1/B4bQ1 b - - 0 1 legal: proof: g4 b5 e4 g5 a4 f5 gxf5 d5 exd5 Nd7 axb5 Ne5 h4 g4 Rh2 Nf7 Rh1 Ng5 hxg5 Ba6 Ra4 Bb7 Ra1 Bc8 d4 Kd7 b4 h5 f6 e5 c3 h4 b6 e4 g6 g3 g7 h3 b5 h2 b7 e3 b8N+ Kd6 b6 a6 f7 g2 b7 e2 Na3 Nh6 g8B Qe7 Bb2 Qe8 Nh3 Qe3 Nd7 Qe6 Nc4+ Ke7 d6+ Kd8 d5 Qg6 Ng5 Nf5 Ncb6 Qe6 Nf6 Rb8 d7 Nd4 Kd2 Rh7 f4 Nc2 Ra5 Rh3 Ba1 Nb4 Rb5 Ke7 d8N Kd6 Nc6 Na2 Qb1 Rg3 Ne7 Bd7 Qd1 Bg7 f8N Rd8 b8R Rf3 Bh7 Be8 Bg6 Qg8 Ra5 Bb5 Nbc8+ Kc5 d6 Qb3 d7 Kc4 Nfg8 Kc5 Rg1 h1R Qe1 Rh4 Rh1 Rg4 Rh8 Bh6 Ngh7 Rg5 Qc1 Re5 Ra3 Bd3 Ra5+ Kc4 Rd5 Rg5 Rd6 Ra5 Rf6 Kc5 Rf7 Kc4 Ra8 Kb5 Rb8+ Ka4 Qb1 Re8 d8Q Bc4 Qd4 Rd8 Qbd3 Rd7 Qg1 Bb5 Qd5 Bc4 Bd3 Bb5 Qe6 e1B+ Ke2 Bf2 Kd2 Bd4 Bg6 Bc5+ Bfd3 Bc4 Be4 Bb5 Bd5 Bc4 Bf5 Bf1 Bg6
4q1NB/1B3bb1/1P6/1N3rpq/K3b1P1/1RN1nBnN/QR1p1pN1/1R2Q2k b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 g5 a4 a5 axb5 e5 fxe5 Bg7 h4 Ra6 h5 Rg6 hxg6 Bf8 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 e4+ Ke6 c4 h5 g4 d5 b6 f5 b7 h4 g7 f4 c6 d4 c5 d3 c7 f3 c6 d2 Rh3 f2 Bg2 Qd7 Ka4 Qd5 b4 Nh6 g8N Qd6 b5 Na6 b8R Qc5 Rb3 h3 Qe1 h2 Nc3 h1B Rab1 Bd7 c8N Nf5 c7 Ne3 Nd6 Qc6 c8B Bg7 Bb7 Be8 Nc4 Bf7 Bb2 Qe8 Bf3 Rh6 Ba1 Rf6 R3b2 Rf5 Rb3 Nf1 Ne3 Nc7 Ng2 Nd5 R1b2 Nde3 Qb1 Bf6 Qa2 Bg7 Rb1 Ng3 R3b2+ Kd7 e6+ Kd6 e7 Ke5 Rb3 Kd4 e5 Kd3 e6 Kd4 Ka3 a4 Kb4 a3 Ka4 Qd7 e8N Qc8 Nef6 Qe8 e7 Ke5 Nfd5 Kd4 Qb2 a2 Nc7 Kd3 Qa3 Kd4 Bb2 a1Q Qa2 Ke5 Rd1 Qb1 Ba1 Qd3 Rdb1 Qd6 R1b2 Qh6 Rb1 Qh5 R3b2 Qd7 e8Q+ Qe6 b6 Kd4 N7b5+ Ke5 Rc8 Qe7 Nh4 Kf4 Rd8 Bg2 Rd3 Qd8 Qee6 Qe8 Qe7 Nc4 Qe1 Ne3 Be2 Be4 Bf3 Nh1 Ng2+ Kg3 Nd5 Kh2 Rdb3 Ng3 Nc3 Kh1 Rc2 Bd4 Nce2 Bc5 Bh8 Bb4 Nc3 Bf8 Rcb2 Bg7 Nh3+
N2Q1R2/2Rn1pB1/2P2P1N/3pNk1B/4qq1Q/N1pn2Q1/K1nB1N1r/3b2b1 b - - 0 1 illegal: No proof kernel
1K2Q2B/rQprk3/2q2RqN/2n5/3N1bRN/R2p1NP1/b2P2Np/2Qq3B b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 c4 Bg7 b4 Bf8 c5 Bg7 c6 Bf8 b6 Na6 b5 Nc5 Rh5 Nf6 Rh1 Nb7 cxb7 Ng8 Ke2 a5 Kd3 e5 Ke4 h5 Kd5 e4 b8N h4 f4 e3 g3 h3 g6 d6 Kc6 d5 b7 d4 f6 a4 f7+ Ke7 b6 a3 f5 a2 f6+ Ke6 g7 d3 Nc3 e2 Bb2 e1Q Nf3 Bb4 f8N+ Kf7 Nd5 Be7 Ng6 Be6 Ne3 Bb4 Qc1 Ra6 Bg2 Ba5 Ngh4 Nh6 g8N Nf5 Nh6+ Kf8 f7 h2 Rf1 Qf6 Bh1 Rh7 Neg2 Qg6 Bh8 Ke7 f8R Qd1 Rf6 Ng7 Re1 Bb4 Re4 Bd6 Rc4 Bf7 Rg4 Kf8 Kd7 Ne6 Kc8 Ra7 Nc6 Nc5 b8Q Bf4 Ncd4 Ke7 b7 Qa4 Qa8 Qc6 b8Q Bg8 Qab7 Rf7 Rb1 a1Q Rb3 Qaa4 Ra3 Qd1 Q8a8 Rg7 Kb8 Ba2 Nge1 Kd8 Neg2 Rd7 Qc8+ Ke7 Qab7 Ra4 Qg8 Ra7 Qe8+
k7/1B3Nq1/5b2/q3pKRp/Q1QRNP1r/BpNr3P/rB5N/2Rb1Nn1 b - - 0 1 legal: proof: g4 d5 b4 f5 f4 a5 bxa5 d4 e4 d3 e5 Kf7 gxf5 Ke8 cxd3 Be6 d4 Nd7 d5 Ndf6 exf6 Bc8 Kf2 Kd7 Ke3 c5 Ke4 Kc7 a4 Kb8 d4 g5 h3 e5 a6 b5 f7 h5 a5 b4 a7+ Kb7 f6 c4 d6 g4 a6+ Kb6 d7 b3 d5 c3 d6 g3 Qd4+ Kc6 Bg2 c2 Bb2 c1R Nc3 Rb1 Nf3 Bg7 f8B Rb8 a8Q+ Rb7 f7 Qa5 d8N+ Kd7 a7 Rc1 Rg1 Rd1 Qc4 Rd3 Kf5 Nf6 Nh2 Nh7 Rac1 Bf6 Be4 Rb5 Bb7 g2 Ne6 Rb4 Ng5 Rg8 Nge4 Ra4 Nd2 Ra3 Ndf1 Ng5 Ne4 Kd8+ d7 Ra2 Bfa3 Nf3 f8N Rg7 Nc3 Rg4 Nh7 Rh4 Ng5 Bh8 Qa6 Kc7 Nge4 Bf6 Qc4+ Kb6 Bc6 Bb7 d8N Ba6 Nf7 Bb5 Rh1 g1Q Bb7 Qg7 Rg1 Ba6 Rg5 Ng1 Qe8 Bb5 a8R Ba6 Rd8 Ka7 Bc8 Ka8 Rd4 Bb7 Qea4 Bd5 Ned6 Bf3 Nde4 Bd1 Bb7+
R3kq1R/nN4Q1/1q3n1b/Np1Q2r1/RN3pn1/2PKB1QR/Rp3P2/6rB b - - 0 1 illegal: Other
1BB1NK2/4n2p/1p1Qqb2/NQq1P2k/4R3/1p2bb1P/1R3Rr1/RR1B1N1n b - - 0 1 illegal: Other
RR2kBK1/np3R2/3rppQ1/1N5B/P3b1q1/3Qq2r/1n1NBP2/Q1Br3B b - - 0 1 illegal: No possible last move, all moves rejected
1Rb2B2/4NNbr/n2Rp3/1R1R1r1b/B1pp2NQ/2P2B1P/1Q3nr1/R4K1k b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 Qc7 d4 Qc5 dxc5 Rh7 Bg2 Rh6 Bf1 Rh8 a4 Kf7 f4 Kf6 h6 b5 a6 d5 a5 g5 a7 g4 c6 b4 h7 b3 c7 d4 c3 g3 h3 g2 a6 b2 Qd2 e6 Nf3 g1R Ne5 Ne7 Na3 b1B Nc2 Ng6 Nf7 Bb4 Ba3 Rg4 Bg2 Rg8 h8Q+ Rg7 Kf1 Ba2 Bc6 Rg2 Ba4 Rg4 Qh4+ Rg5 Ne3 Bc5 Ng4+ Ke7 f6+ Kf8 f5 Rh7 Qb2 Nf4 Rh2 Rgh5 Re2 Nd3 Re5 Bb4 Rd5 Bb3 Rb1 Bd1 Rd6 Bd7 c8N Nf2 Ne7 Bc8 Rd5 Bd6 Bc5 Be5 Ba3 Nd7 Ra1 Rb8 a8B Nc5 a7 Na6 Rb5 Ke8 Bf3 Kd7 a8R Kc7 Rd5 Rg5 Bc5 Rb5 Rb8 Ra5 Rb5 Rgg7 Ng8 Kc6 Bf8 Rg5 Nd6 Rg6 f7 Bg7 f6 Rg5 Be7 Rg6 f8R Rg5 f7 Rg6 N4h6 Rg2 Rd8 Be2+ Ke1 Bd1 f8R Be2 Ndf7 Bd1 Be4 Bh5 Ng4 Nb4 Kf1 Na6 Rb7+ Rb5 R8d7 Rh2 R5d6+ Kc5 Rdd8 Bd7 Rdb8 Bc8 Re8 Ra5 Bf8 Rb5 Rbb6 Ra5 Ba8 Rb5 Rdc6+ Kd5 Ne7+ Ke4 Rd8 Rf5 Rb5 Kf3 Ke1 Kg2 Rcc5+ Rd5 Rd6 Kh1 Kf1 Rg2 Bc6 Re5 Bf3 Rf5 Rcd5
QKR1bR1r/1RpBB1n1/B7/kPPNQ3/3p2rr/1b2NpB1/6B1/1n2b1N1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Nf6 g4 Rg8 h5 Ke7 g6 Ke8 g5 Bf8 h6 Rh8 Bh3 Ng8 Bg2 Qf6 Bf1 Qg7 hxg7 Be7 Qd4 Ba3 Qd1 Bf8 Kd2 Kd8 Kc3 d5 Kd4 h5 b4 a5 e4 f5 c4 h4 b6 f4 e6 f3 e7+ Kd7 Kc5 d4 e5 a4 b7 a3 Bg2 a2 Bf4 h3 Qe1 h2 Bg3 Rh3 Na3 Rh6 Rb1 a1R Nc2 Rh8 Ne3 Nh6 g8B R8a2 g7 Ra4 g6 Nc6 b8B Rh7 Ba7 Bb7 e6+ Kc8 Kb5 Ne5 e8N Ra6 e7 Bd5 Bc5 Kb7 Nf6 Nf5 e8B Rh4 Bd7 Ra8 Be7 Rc8 Kc5 Ka6 Rb3 Bf7 Nfd5 Be8 Bge6 Rg4 g8R Ng7 Bf5 Rd8 Bd3 Rc1 Bd6 Be7 Rf8 Bh4 Be7 Ra1 Bf4 Bf2 Bg3 Rc1 Qe2 Be1 Rb1 Nc6 Rb2 Na7 Rb3 Nb5 Kc6 Na3 c5+ Ka7 Ba6 Nb1 Qd3 Rc2 Qe4 Rh4 Qe5 Re2 Nf1 Ree4 Nfe3 Reg4 Rb2 Nh5 g7 Rc8 g8Q Ng7 Ra2 Ra8 Ra5 Rc8 Rb5 Ra8 Bc8 Rb8 Rb7+ Ka6 b5+ Ka5 Rb6 Ra8 Ba6 Rd8 Kb7 Ra8 Ne2 Rc8 Rg1 h1B Ka7 Rd8 Rb7 Rc8 Rf1 Rd8 Ng1 Rc8 Rf2 Rd8 Re2 Rc8 Bh3 Bg2 Qh8 Bf1 Rh2 Rh6 Bg2 Bc4 Rh5 Bb3 Rhf5 Bg6 Rg8 Rb8 Rc8 Be8 Rf8 Rh1 Qh6 Rhh4 Qc6 Ba4 Rb6 Bd1 Qa8 Bb3 Rb7 Rh6 Rd8 Bg6 Rf6 Rhh4 Rh8 Rg8 Rf5 Be8 Kb8 Bh5+ Rf8 Bf7 Rc8 Be8 Rh6 Rf8 Rf6 Rfh8 Rf8
rBNQR3/QPK1Nbn1/3pQ1p1/3P1b2/p5Rb/NnRq4/4NbB1/k3N3 b - - 0 1 legal: proof: g4 e5 a4 b5 b4 a5 c4 h5 gxh5 e4 c5 e3 c6 Be7 fxe3 Ba6 e4 Bb7 axb5 a4 b6 Bc8 b5 Ra7 e5 Rb7 cxb7 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 c5 h4 g6 d4 f6 d5+ Kf7 h6 c4 e6+ Ke7 h5 Kd6 h7 Kc5 e7 Kb4 e8R f5+ Ke5 c3 e4 f4 h6 f3 Qe1 Kb3 Na3 f2 Bf4 Kb2 Rc1 c2 Ne2 Ne7 Kd6 Nbc6 b8N Na7 b7 Rg8 h8Q+ Bg7 b6 Bf6 h7 Nec6 e5 Rf8 e6 Ka2 e7 Na5 Rh4 N7c6 Rg4 Nd4 Bg2 f1B Nc6 Nab3 b8Q Bh4 b7 Ne6 Qa7 Qb6 Qg8 Qf2 h8N Ng7 Nf7 Qe3 Ng5 Qd3 Nf3 Kb2 Kc7 Bf2 Bh1 Bh3 Bg2 Bh4 Qea5 Ka2 Qe6 Rg8 Rf1 c1B Ne1 Be3 Rf3 Bef2 Q5b6 Ka1 Bd6 Qb5 Rc3 Qa6 Kd8 Qd3 Bb8 Rf8 Kc7 Rh8 Rf8 Rg8 e8N Rh8 Ne7 d6 Nf6 Bd7 Nc8 Be8 Ng8 Bf7 Nge7 Rg8 Re8 Rf8 Re4 Bf5 Rg4 Qg3 Kd7 Bc2 Rd8 Qe5 Bc7 Nd4 Qba5 Nb3 Nb6 Qe4 Ra8 Rd8+ Kc6 Rd7 Rh8 Rd8 Re8 Ra8 Nbc8 Qd4 Bb8 Bf5 Qd8 Qd3 Kc7
2b5/1p1B4/P3N1N1/2bK2R1/Q1ppQ1RR/b1P2N2/kr1bqr2/2BNnN1Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 Na6 d4 Nc5 dxc5 Ra7 Kd2 Ra6 Ke1 Ra8 Ke2 Kf7 Kf3 g5 Ke4 e5 f4 g4 h4 d6 a4 g3 f6 Ke6 f7 g2 c6 Ra6 c3 Be7 f8R Bf6 h6 Ra7 c7 Ne7 h5 Ng6 f5+ Ke7 h7 Nf4 a6 Bd7 c8Q Ne6 a5 Rg8 h8N Qe8 h6 Rg4+ Kd5 e4 h7 e3 Nf3 g1B Qa4 e2 Qcc6 e1B Ng6+ Kd8 h8Q Rg3 Nbd2 Ng5 Bh3 Rg2 Rg8 Bc8 Nf1 Be7 f6 Bc5 f7 Rf2 f8N Bd2 Bd7 Ra8 a7 Ba3 Kd4 d5 Rh4 Bac5+ Ke5 d4 Qe4 Kc7 Kd5 Ba3 Rg4 Bec5 Qh1 Qe7 Rh8 Qe8 Rhh4 Qe7 Qd3 Qe2 a6 Kb6 Ne6 Rg2 N3h2 Nf3 Qe4 Ne1 Nf3 Rb8 Nef4 Rf2 Nd3 Rh2 Nf2 Rg2 Qc6+ Ka5 a8N Rh2 Nc7 Ra8 Nb5 Ka4 Nc7+ Kb3 Nd1 Rg2 Rb1+ Ka2 Ne6 Bd6 Rb4 Qe3 Bb2 Bc1 N3h2 Bf8 Be8 Bd7 Ke5 Rd8 Qb5 Bc8 Qa4 Be7 Bd7 Rf8 Rb6 Rd2 Rc6 Qe2 Rc5 Rf2 Nf3 Rc2 Ra5 Bd2 Bc1 Rb2 Rd5 Bd8 Rc5 Bb6 Kd6 Rb4 Rf5 Bc5+ Kd5 Rb2 Rfg5
1qrNQ1KR/1Q5p/3k1BpR/1rr2R1P/4nNP1/1r4p1/b6n/B2BQQ1Q b - - 0 2 illegal: Other
N1Br3B/p1n1rb2/B3p2Q/1P1Q2Rn/1QQ1P1Nb/2R4p/1K1b3Q/1b2kN2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 h4 Qd6 g4 Qb4 g6 Qd6 h5 Qb6 g7 Qc6 g5 Qg6 hxg6 Kd8 Ra5 Kd7 Ra1 Ke8 b6 Kd7 e4 Kd6 b4 Ke5 d4+ Kd6 Kd2 c5 Kc2 f5 b7 h5 Rh3 f4 Nf3 h4 Ra5 c4 Nbd2 c3 Bb2 Bf5 Ne5 f3 Ng4 f2 Qe1 Nc6 b8Q+ Kd7 d6 Ke6 d7 Nh6 g8B+ Nf7 d8Q Ne5 g7 Nd3 g6 Rh7 Qh2 Nf4 Ba6 Nh5 Nf1 Rc8 Kc1 c2 Rg3 h3 Qb6+ Rc6 Qe3 Rd6 Qc5 Rd7 Qh6 Rh8 Bh7 Ng5 g8N Rb7 g7+ Bg6 N8f6 Bf7 Bg6 Rc7 Nd5 Rg8 Qb5 Kd6 Bh7+ Ne6 Nb6 Rd7 Bg6 Nc7 d5 Rh8 Bf6 Rg8 Kb2 c1B+ Ka2 Bg5 Na8 Bh4 Kb2 Rh8 Bf5 Rg8 Nfe3 f1B Qb7 Bd3 Nf1 Bb1 Be6 Rh8 g8Q Be8 Qb5 Bg7 Qf8 Bf7 Qc4 Rg8 Bc3 Be5 Qb8 Bf4 Bh8 Be3 Nf6 Ke5 d6+ Nd5 Ra3 Nc7 Rc3 Bd2 Qb7 Rf8 b5 Re8 Qbc6 Rf8 Qb4 Rb8 Qcc4 Rf8 Bd5 e6 Bdb7 Re7 d7 Rg8 d8Q Rge8 Qg7 Kf4 Qdd5 Rd8 Bc8 Bd3 Ne3 Bb1 Rg5+ Kf3 Qh7 Ree8 Qh6 Re7 Qhe5 Kf2 Qh2+ Ke1 Nf1 Be3 Ng4 Bf4 Qbd6 Bd2 Qdb4
2rRN3/k3NQb1/R2pBp1n/2NPb3/nK1b1N2/2Q3R1/5Pp1/2BBNbn1 b - - 0 1 legal: proof: c4 a5 g4 b5 b4 h5 gxh5 d6 bxa5 b4 e4 Kd7 e5 c6 Nh3 Qb6 Ng1 Qb5 cxb5 Ke6 Be2 Ra7 Bf1 Kf5 e6 Rd7 exd7 Ke6 d8R Kd5 a4 Kc5 d4+ Kd5 Kd2 g5 h4 e5 h6 g4 h5 c5 b6 Kc6 b7 b3 Kc3 c4 a6 Kb6 h7 b2 a5+ Ka7 h6 g3 Nh3 g2 Qh5 e4 Be2 e3 Na3 b1N+ Kb4 c3 Nf4 c2 Bd1 e2 Rh3 Be7 Rg3 Nd7 b8N Nb6 Nd7 Nc3 Nc5 Ka8 a7 Nf6 d5 Rg8 h8N e1B h7 Ng4 Nhg6 Bf6 h8Q Bd4 Ne7 Nba4 Q8e5 f6 Qf7 Nh6 Qe3 Ne2+ Qc3 Nb6 Ncd3 Kb7 a8B+ Ka7 a6 Na4 Nc5 Rh8 Bc6 Ng1 Bd7 Rg8 Be6 Rf8 Bd2 c1B Nc2 Bd7 Be3 Bb5 Ra3 Bb2 Bc1 Bd2 Ne1 Bf1 Ra2 Kb6 a7 Be5 a8N+ Ka7 Rb8 Rc8 Nc7 Be3 Ne8 Ba1 Qc4 Bad4 Qc3 Nf5 Ne2 Bh6 Nf4 Bg7 Ra1 Nh6 Ra3 Rc6 Rd8 Rc8 Na6 Nb6 Ra5 Na4 Nc5+ Kb8 Rb5+ Ka8 Rb6 Ka7 Ra6+
1NB1b1Rr/2n1n1r1/3B2kN/R3PRQ1/1q1b3P/p1R2p1p/3KN1p1/1BRQ4 b - - 0 1 illegal: No proof kernel
2N2Q2/r1nNBpP1/pBRq1Pp1/1B3B2/3r3b/5BRK/1R2pk2/1n1QN1b1 b - - 0 1 illegal: No proof kernel
3k4/1Bbppb2/1R1Q1N1B/1pKn2Q1/2Q1qn2/p2rrP2/PR5B/4BBRN b - - 0 1 legal: proof: e4 f5 exf5 h5 b4 c5 bxc5 Nh6 g4 Ng8 gxh5 Nf6 d4 Qb6 c4 Rh7 c6 Qb5 c7 Qb6 d5 Qc6 dxc6 Ng8 c5 Rh8 Ke2 b5 Kd3 g5 Kd4 a5 h4 a4 f6 g4 f3 g3 h6 a3 h5 g2 h7 Bb7 c8B Nh6 c7 Ra5 c6 Ng4 h6 Rg8 h8R Na6 h7 Rg6 Ne2 Nc5 Bf4 Nd3 Rh6 Nh2 Nbc3 Rg3 Ne4 Rg7 N2g3 Nb2 Nh1 Rg8 Kc5 Ra6 Qd6 Ng4 Bh2 Ne3 Rb1 Rg7 Rg8 g1Q h8B Rg2 Rg4 Ba8 Bb7 Re2 Rg5 Qf2 Rg1 Qh4 Bg7 Nd5 c8Q+ Kf7 c7 Re3 Bh8 Bg7 Qb8 Ra4 c8Q Rd4 Qg3 Rd2 Qg5 Rdd3 Qd6 Qe1 Qcc6 Ke8 f7+ Kd8 f8B Be5 Nf6 Qh4 Rg6 Qe4 Bh6 Bf4 Qe6 Bc7 Qcd6 Nf4 Qc4 Nd1 Rb2 Nc3 Ne8 Ncd5 Bc3 Nh3 Bb4 Nhf4 Be1 Nb6 Bc8 Bd5 Bb7 Bf7 Re6 Nbd5 Nf6 Nh5 Qde5 Nhf4 Rb6 Qh7 Qe6 Qe4 Qd6
n1R1R3/Np1K1p2/B3P2r/B1PpNk2/1r2b3/b2pQB2/Q1q3Bn/N1R2B2 b - - 0 1 illegal: Other
5rRN/p2NBp1B/2pn1Pb1/Pk4QR/1p1B4/4N2Q/Kn1Bq1Q1/Brr5 b - - 0 2 legal: proof: d4 d5 c4 e5 dxe5 h5 cxd5 c6 b4 h4 b5 h3 b6 Rh5 gxh3 Bc5 h4 Rh8 h5 Bf8 Bh3 Bd6 Bf1 Bc7 bxc7 Bh3 Nd2 Bf5 Nb1 Bc8 Kd2 Kd7 Kc2 b5 Kb3 g5 h4 b4 f4 g4 a4 g3 e4 g2 e6+ Kd6 f5 Kc5 e7 Nd7 e8Q Ne5 d6 Kb6 h6 Ba6 c8Q Bb5 h5 Nd7 h7 Be2 a5+ Kb5 e5 Ne7 h6 Ng6 e6 Bd3 e7 Rb8 Nh3 g1R Ka2 Ndf8 d7 Rg3 Qg4 Rb7 Nf4 Nh4 Ng6 Re3 Na3+ Ka6 Qg2 Re5 Nc4 Re2+ Bd2 Ne6 Qg8 Rf2 e8N Qf6 d8B Re2 Ne3 Nd4 Be7 Qe5 Nf6 Nhf3 Rh5 Kb5 Nd7 Rb8 Qg7 Re8 h8B Re1 h7 Rb1 Qh6 Ra8 Qhg5 Ne1 Bhf6 Qe4 h8B Qg4 Bhg7 Qe2 Nh8 Bc2 Be5 Nd3 Bgf6 Nb2 Bg7 Nf3 Bd4 Nh4 Bge5 Rc1 f6 Nf5 Rb1 Nd6 Ra1 Na4 Rb1 Bf5 Ba1 Nb2 Bd4 Qd3 Be2 Rf8 Bf3 Qe2 Bd5 Bg6 Be4+ Rc5 Rg1 Rb8 Ne5 Rc1 Qch3 Rbd8 Bf5 Rb1 Nd7 Rde8 Bd8 Re5 Be7 Rc5 Rh4 Bh5 Bh7 Bg6 Rh5 Nd1 Qgh4 Be4 Qgh1 Nb2 Rg8 Bd3 Q1g2 Bg6 Nf5 Rc2 Qhg5 Rcc1 Ne3+
2r1Q2R/4QRBQ/B1nN1B2/2p3r1/1k1Ppp1p/Bn3PqB/b4r1N/1N2K3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 g4 Kd7 b4 c5 g6 e5 g5 f5 g7 a5 b6 h5 b5 a4 g6 a3 b7 a2 b6 f4 Bh3+ Ke8 d7+ Ke7 d6+ Kf6 Qe2 Ne7 g8Q Qc7 d8N Nd5 g7 Qf7 d7 Ke7 Ba3 Kd6 Qh7 Nb4 g8B N8c6 b8Q+ Kd5 b7 Na5 Nf3 Nbc6 Nh2 Nb3 f3 Qe6 Qe3 Kc4 Nf7 Qg4 d8B Be6 Bf6 Kb5 Qc7 Rc8 b8B Qg5 Qe7 Qg3+ Ke2 Ka5 Nd6 Bd5 Bge6 Rhg8 Bef5 Ka4 Bd3 Rg5 Ba6 Bf7 Qee4 Ka5 Qeg6 e4 Bg7 Bd5 Qge8 Ka4 Bc7 Bf7 Bd8 Be6 Nd2 Bd5 Rag1 a1R Nb1 Ra2+ Kd1 Rf2 Ke1 Na1 Rg2 Ba2 Rgg1 Qh4 Rg4 Qg3 Rh4 Nb3 Rg4 Rf5 Rg5 Rd5 Rf5 Re5 Rf7 Rd5 Q7d7 Rg5 Bdf6 Ka5 Qde7 h4 Rg1 Ka4 Rg2 Rd5 Bh8 Qg8 Rgg7 Rf5 Rf8 Rd5 Rgf7 Qg3 Rg8 Rg5 Bhg7 Ka5 Rh8 Ka4 Bc1 Kb4 Ba3+
1N1BN1B1/q2RQ3/3np2n/Prp1Bp2/bRk3B1/B1N1prR1/3rP3/1K1Q4 b - - 0 1 illegal: Other
Qk5r/q2BB3/p2R1n1p/P2R1PQn/K1pp3R/N2NQQ1B/3r2b1/2Qn4 b - - 0 1 legal: proof: g4 b5 h4 g5 c4 f5 gxf5 e5 cxb5 g4 d4 Be7 dxe5 Bg5 hxg5 Kf7 Kd2 Kf8 Ke1 Ke8 Kd2 c5 Kc2 d5 Kb3 Kd7 e4 Kc7 a4 g3 f4 a6 a5 g2 f6 c4+ Ka4 h6 b4 Qe7 b6+ Kb7 f7 Qf6 f8Q Be6 g6 Qh4 b5 Qe7 g7 Ra7 Na3 Nf6 g8Q Qe8 Ne2 g1N Rh4 Bf5 e6 Kc8 b7+ Kc7 e7 Bh3 e5 Ne4 e6 Qc8 e8Q Bg4 e7 Be6 b6+ Kd6 Bh3 Nf6 Qg5 Nc6 b8Q+ Qc7 b7 Nd7 Qa8 Bg8 b8R Nd4 Rb5 Nc2 f5 Ne3 Nf4 Qb6 Qff6+ Kc7 Nd3 Ne2 Rab1 d4 Qf3 Ng3 Rd5 Rb7 Qdf1 Qc5 Rb6 Nh5 Rbd6 Rb2 Bd2 Rc2 Bb4 Qa7 Qc1 Nd1 Qge3 Bf7 Qfg5 Ndf6 Qc6+ Kb8 e8B Rd2 Bd7 Be8 Re6 Bf7 Be7 Be8 Red6 Bf7 Rc5 Bd5 Rb5+ Qb7 Rc5 Be4 Rcd5 Qa7 Qfe2 Bh1 Q2f3 Bg2 Qa8+
1R1B4/n1rp1n1q/1p5k/2p1NpNB/N2QQ2Q/PBr2P2/BR2K3/r5bB b - - 0 1 legal: proof: d4 a5 c4 e5 dxe5 h5 b4 b6 bxa5 h4 c5 h3 c6 Bb7 cxb7 Ba3 gxh3 Ne7 h4 Ng8 h5 Bf8 e4 g5 h4 c5 h6 f5 a3 Kf7 e6+ Kg6 e5 g4 h7 g3 h5+ Kg7 e7 g2 e8B Qf6 a6 Ne7 a7 Qg6 e6 Qf6 Qd4 Na6 b8Q Nc7 Bg5 Ng8 e7 Nd5 Nh3 g1R Qbe5 Ne3 Ke2 Nd1 Bf7 Ne3 e8B Nc2 Qee4 Ne1 Bb3 Nc2 Nc3 Be7 h6+ Kf8 Na4 Bd8 Bh5 Qe7 Ra2 Rc8 a8B Bc7 Rb2 Nb4 f3 Nc6 Bg2 Na7 Bad5 Ra1 Be6 Qg7 Bd8 Bh2 Ng5 Rc7 Ba2 Qf7 Beb3 Bg1 Rh4 Rc1 Bh1 Rc3 Rg4 Ne7 Rg3 Ng6 Rg4 Rg8 h8N Ne5 h7 Kg7 Ng6 Kh6 h8Q+ Qh7 Rg2 Nf7 Ne5 Nd6 Qf2 Rg7 Qfh4 Rg6 Qf6 Nf7 Qd6 Re6 Qdd4 Rd6 Nh3 Rd5 Rg8 Rd6 Ng5 Rd5 Qdf2 Rd1 Qfd4 Rb1 Bf6 Rf1 Rb8 Ra1 Bd8
4nbnN/BRNr4/2p5/1pr2PKQ/1RP2NB1/2BkrR2/3p2pB/4Bq1Q b - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 e5 b4 f5 bxa5 b6 d3 Bb7 exf5 e4 Bg2 e3 Bf1 Be4 dxe4 Ke7 Qd3 Kf7 Qd1 Ke8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 a4 d5 h4 g5 c4 b5 f4+ Kf6 e5+ Kg7 f6+ Kh7 f5 c6 h6 d4 f7 d3 a6 e2 a7 e1R h5 Re3 a5 Rh3 a6 Qd5 e6 Qd7 e7 Qd5 e8Q Nd7 Nd2 Nc5 Ra3 Rd8 a8R Ne4 a7 Qc5 Ne2 Ng3 Ne4 Qe3 Nd6 Be7 f8B Rc8 Nf7 Qd2 Nf4 Qb2 Be3 Qg7 Rb8 Bd6 a8N Bc5 Rb7 Rd8 Be2 Rd5 Bd6 Ne4 Nc7 Qa1 Bf3 Bb4 Ba7 Rc5 Rf1 Qb1 Ra4 Qc1 Be2 Re3 Rf3 d2 Qh1 Ba3 Rb4 Qf1 Be5 Nd6 Bd4 Re7 Bf2 Ree5 Be1 Re3 Kg3 g4 Kh4 g3 Kg5 g2 Bd1 Nf6 Be2 Rf8 Nh8 Rf7 Bd1 Rg7+ Qg6+ Kg8 h7+ Kf8 h6 Rd7 Qgh5 Ke7 Rf2 Ng8 Bg4 Ne8 Rf3 Kd6 Nf7+ Ke7 h8B Rdd5 Bc3 Rd7 Nh8 Kd6 Rb2 Bb4 h7 Ba3 Ba5 Ke5 Bc3+ Ke4 Rb4 Re7 Nhg6 Rd7 h8B Red3 Bhe5 Re3 Nfe6 Kd3 Bh2 Rcd5 Nh8 Re5 Rb2 Bf8 Rb4 Rc5 Nf4+
1QqRn3/1r2R1Bp/r7/QPkBBN2/1R3n1P/3N2pN/prpb1B2/K6B b - - 0 1 illegal: No possible last move
6nR/6pQ/p5Qr/k1p1R2Q/B1QRNQP1/b2K1N1p/2Pb2B1/2bqB2n b - - 0 2 illegal: Other
5B1B/1Q6/1pQq3P/n4Bkq/1p1p1R2/NbN3np/3NrB1P/2KR1rRB b - - 0 1 illegal: Other
2b1Q2Q/rrk2p2/3RPp1B/1N3Q2/RqB5/b2NpPK1/2nRqpN1/5NN1 b - - 0 1 illegal: Other
2N4Q/pRkp1Q1n/B1Bb2bR/2B3N1/r4r2/P1n1Kn2/p1Rp2QP/1Q4Q1 b - - 0 1 illegal: Other
1B1Q1q2/2Pp1N2/QK2B3/1prQQR2/1P2nN2/2pp1bn1/1BkQp2R/r6N b - - 0 1 illegal: Other
2Q5/pBpb1R1B/P1q1Q1K1/3n4/rr3N1B/pRPp1pBB/k3b3/1RQ2N2 b - - 1 2 illegal: Other
rQbNk1Br/2pQ4/R2qp1Rn/2P3b1/NR2RBRq/K3P3/2q2b2/QBn5 b - - 0 1 illegal: No proof kernel
1kbB2n1/1p4Q1/1P2N1pR/r5n1/r2N1KPb/BBBN1QQb/R4B2/nb3q2 b - - 0 1 illegal: No proof kernel
k2B3n/q1b1p1Q1/2K1Bp2/1B1QP1Q1/1N1Qq1R1/R1R1n2b/q3NPQ1/qr3r2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 e4 Kd7 Ke2 h5 Ke3 c5 b4 Kc7 g4 Kb7 d4 a5 b6 f6 b5 a4 e5 c4 Ke4 a3 g6 c3 g7 c2 g5 h4 d6 a2 Kd5 h3 d7 h2 g6 Ra3 Ne2 Qe8 d8Q Rh6 Qd2 Re3 Nbc3 Rh7 Rg1 Na6 Rg4 Re4 Qg5 h1Q Bd2 Ka8 b7+ Ka7 b8R Bd7 Rc8 c1Q b6+ Kb7 Rc5 Nh6 g8B Bc8 g7 Qa3 Be6 Ka8 g8Q Qea4 Q8g7 Nf7 Qd6 Qc2 Kc6 Nc7 Nd5 Nh8 Nb4 Qa7 Rc3 Nd5 Qc5 Ne3 d5 Qg2 d6 Rh1 d7 Rd4+ Qd5 Qge4 Be1 Rd1 d8Q Rb1 Qd6 Qd2 Qc5 Rg1 Qd4 Rh1 Nf4 Qb2 Bb5 Rf1 Ne2 Qb3 Qh7 Bg7 Qh1 Bh6 Qg2 Nd1 Qg7 Be3 b7+ Kb8 Qd2 Bb6 Qdg5 Bc7 Bd2 Qbc2 Be3 Qd2 Bb6 Ne3 Ba5 Bd6 Bd8 Bc7 Rd3 Rbd1 Rc1 a1Q Ra3 Qda2 Rcc3 Rb1 Bf5 Bb6 Ba4 Rb2 Rc2 Q1b1 Rf4 Bd4 Nd3 Bb6 Bg4 Bf5 Rc5 Bh7 Be6 Bf5 Rc1 Bh3 Rg4 Qa5 Rc2 Bc7 Rc4 Ka7 b8Q+ Ka6 Rc5 Qba1 Qb4 Ka7 Qd4 Rbb1 Nb4 Ka8 Rcc3 Qa7 Bb5
1N2Q1q1/2nn2N1/Bnr3p1/2p2N1p/RQP1r2R/BbQk2P1/NB1b4/b2N1K2 b - - 0 1 illegal: No proof kernel
2R1RQ2/1qQB2rr/3bB2r/n1bn1QpN/2pQ4/2P3Q1/p4RPK/Nk2Bb2 b - - 0 1 illegal: No proof kernel
n2b1R2/2RQ1rQp/R7/N2prR2/BKbN3P/rp5k/1bRP1B1B/4q1nN b - - 0 1 illegal: No proof kernel
1r6/3pnBnb/1B1Q2B1/2p1BQ1p/1q1PK1R1/3N3n/1bP1kN2/Q1BNbr1R b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 Ke2 Kf7 Ke3 a5 d4 e5 g4 h5 f4 c5 b4 a4 f6 Kg6 f5+ Kh7 b6 a3 b7 e4 b5 a2 f7 Qf6 g6+ Kh6 b6 Kg5 g7 Nc6 b8B Nd8 b7 Rh7 Bd3 Qe5 f6 Qe6 Nc3 Nh6 g8N Nc6 Bc7 Bd6 b8B Ba6 f8Q Bg3 f7 Be1 Ne7 Qb3 Ned5 Qb4 Bb6 Ne7 Be5 Rb8 Nf4 Rh8 Rb1 a1B Ngh3+ Kh4 g5 Kg3 g6 Bb2 g7 Nhf5+ Ke2 e3 g8B Rh6 Nf2 Rf6 Qh6 Bb5 f8Q Ng7 Bf7 Bc6 Bh7 Be4 N4d3+ Kg2 Bhg6 Rf3 Ng4 Rf1 Ngf2 Bf5 Rh4 Kg1 Kf3 e2 Kf4 Kg2 Qd2 Kg1 Nd1 Kg2 Qc3 Be4 Be8 Kg1 Bgf7 Bh7 Qd6 Kg2 Kg5 Kf3 Rg4 Bd2+ Kf6 e1N Qa3 Ke2 Qa1 Ng2 Bg6 Nf4 Bef7 Be1 Kg5 Nge6+ Kf6 Ng8+ Kf5 Ng7+ Ke4 Nh3 Qfe7 Ne6 Qg5 Ng7 Qf5 Ne7 Bd2 Rh1 Ne3 Rg1 Rd1 Rh1 Bc1 Bec3 Rdg1 Bd2 Ned1 Be1 R1g2 Rg1 Rh2 Rf1 Rh1
1R2r3/4pq2/b1pN2qQ/1N1Q1Q2/r1PbP3/1rp2N2/N1K1R1R1/1nBBNkn1 b - - 0 1 illegal: Other
1Q2KB1n/3n4/3rpkQp/BN1QbpR1/q2R3P/Q1q1N3/Q2RPn2/r2B1b2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 Kf2 c5 Kg3 a5 Kf4 f5 Ke5 Kf7 d4 a4 h4 a3 b4 c4 g4 a2 g6+ Kg7 d6 c3 d5 h6 g5 c2 b6 Nd7+ Ke6 Ra4 b7 Rh7 b8Q Ne5+ d7 Qe8 b5 Rf4 d6 Nf3 b6 Nf6 b7 Ng4 Nh3 Qd8 Nc3 Qc7 Qd5 Qc5 Rg1 Rb4 Nb5 Nf6 Ba3 c1N Qa7 Nd2 b8Q Nde4 Bg2 Qc3 Nf2 Bb7 d8R Rc4 d7 Nd3 Nd1 Rc7 Ne3 Qe1 Rd1 a1Q Rd2 Nef2 Be4 Ne5 Bc2 Qc3 Bd1 Nf7 Bd6 Qb4 Qa3 Rc6 Rg3 Nh8 Rd4 Kg8 g7 Rc1 Rgg4 Qec3 Rd2 Qa4 Rgd4 Ng6 Rc8 Ba8 d8B Ra1 Ba5 Nd7 Bc5 Rh8 Rd8 Kh7 Kf7 e6 Ke8 Kg8 Qa7 Be7 Rb8 Bd8 Bf8 Bc7 Qaa2 Bg3 Qac5 Bb7 Qca3 Be5 Rc8 Kh7 Rcc4 Ba8 Rg4 Rg8 Rcd4 Nh8 Rg1 Kg6 Rg3 Kh5 g6 Bc6 Qdc4 Bg2 Qd5 Bf1 Rgg4 Nf7 Rg2 Rh8 g8Q Rh7 g7 Nh8 Ng4 Kg6 Ne3+ Kf6 Rg5 Bh3 Bc5 Bf1 Qf8+ Nf7 g8Q Rg7 Qfd6 Nh8 Qb8 Rh7 Bf8 Rg7 Rh5 Rg4 Rg5 Re4 Rb4 Rc4 Qh7 Rc6 Rbd4 Rd6 Qg6+
R3n1b1/R3NNp1/RKB2n1p/B4qpP/2B3P1/b1Q3k1/1N2r2r/BBQn2n1 b - - 0 1 illegal: Other
1R1rR1QQ/rr5Q/2p4Q/nBPq1p1r/p2R3b/P2B3Q/1K3BbN/2n2N1k b - - 0 1 illegal: No proof kernel
2B1bRN1/2KBN3/4pbn1/Rr2Np2/B1kBbP2/Qn1R3p/p5BP/1r1q2Q1 b - - 0 1 illegal: No proof kernel
Q2b4/qp1p1B1b/n4QQN/1R1Pr1n1/pnB2K2/RR1B2B1/1P1k2pB/1N5r b - - 0 1 illegal: No proof kernel forced: wxLB
3N4/2pk4/NrN2B1n/R1KbpQp1/BQn2q1p/1R2NRB1/3qP1P1/b2r2N1 b - - 0 1 illegal: Other
3Q3N/k1p2N1p/2B1Bbq1/pKP1N1Q1/2Qrpp2/5N2/2R1PnnB/NRrb4 b - - 0 1 illegal: No proof kernel
R2Qb1K1/3qP2R/qpPq2nr/4R2R/3nNN2/k1R1BR1q/1R2r1B1/1B6 b - - 0 1 legal: proof: d4 a5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 a4 gxf5 a3 bxa3 g4 a4 Be7 a5 Bg5 hxg5 Kf7 Rh3 Kf8 Rh1 Ke8 Kd2 Ke7 Ke3 d5 Kf4 h5 e4 h4 c4 g3 a4 b6 e6 d4 Ke5 g2 c6 h3 g6 d3 g7 d2 c5 h2 f6+ Ke8 a6 Qe7 c7 Bd7 c8R+ Qd8 f7+ Ke7 f8R Ra7 a5 Rb7 a7 Bc6 a8B Be8 a6 Nf6 g8R Bd7 a7 Na6 Ne2 g1Q Ra5 Rb8 Nbc3 Nb4 Nf4 Be8 Bd3 Nc2 Rg2 Nb4 Bb1 Qf1 Kf5 Nbd5 e5 Rh6 Ne4 Ng8 Bb7 Qd6 a8R Nc3 Rc6 Kd8 e7+ Kd7 Rb5 Rc8 Rg5 Qe2 Rb2 Qa6 Rh5 Nb5 Rf7 Rc7 Rh7 Rc8 Rf1 h1Q Rf3 Nd4+ Kg5 Rb8 Rc8 Qh3 Bd5 Bf7 e8R Ne7 Bb7 Ng6 Re6 Qg2+ Kf6 Qh3 Kg7 Be8 Kg8+ Qe7 Qc2 d1Q Qd2 Qda4 Qd3 Qc6 Be3 Qd6 Rd8+ Kc7 Bd5 Qed7 c6 Qb5 Ra3 Ra8 Rab3 Ra2 Ra8 Qc4 Rc3 Qa6 Rbb3 Re2 Rb2 Nb3 Ree7 Nd4 e6 Qe5 Qc2 Nb5 Nd2 Kd6 Rf1 Qda7 Bg2 Qd4 Qf5 Qd3 Qf6 Qd7 Rf3 Qd5 Ref7 Nd4 Qd8 Qe5 e7 Qd5 Rcb3 Kc5 Ne4+ Kc4 Ra3 Qe5 Rff5 Qed6 Rd2 Kb4 Rc3 Ka4 Re5 Kb4 Rb2+ Ka4 Rcc2 Ka3 Rc3+
QK1N1bq1/Rp2r2q/BRB1n3/2r5/q2B3P/1P1N3B/1BNBq3/3b2Bk b - - 0 1 legal: proof: b4 d5 g4 a5 bxa5 h5 gxh5 e5 c4 e4 cxd5 e3 fxe3 Nc6 e4 Nd4 e5 Nb3 axb3 Rh7 Qc2 Rh6 Qd1 Rh8 Kf2 Kd7 Kf3 g5 Ke4 c5 d4 f6 h6 c4 h7 g4 a6 g3 d6 Kc6 d5+ Kc5 e6 f5+ Ke5 f4 e4 f3 a7 c3 d7 g2 d6 f2 e7 c2 e8B Qc7 d8B Qc6 d7 Bg7+ Bf6 Qa6 d8B Bd7 Nh3 g1Q Nf4 Ba4 Beb5 Qg2 Na3 Qc6 Bb6+ Kb4 Qd8 Rb8 a8N Kc3 Nc7 Bf8 Nce6 Rc8 h4 Ne7 Rg1 Rg8 h8B Nf5 Qe8 Qg6 Bh3 Qh7 Rg6 f1Q Bg1 Nd4 Bfg7 Rc7 Qa8 Qf3 Bbf1 Bb5 Nd8 Be2 Ra2 Qc4 Rb6 Bd1 Bh6 Qc6 Bb2+ Kd2 Bb5 Ke1 Nd3+ Ke2 Ra1 c1Q Bd2 Qcg6 Nc2 Rgg7 Ra7 Qa1 Ba6 Qa4 Kd5 Qf2 e5 Kf3 e6 Qe2 e7 Ne6 e8B Rge7 Kd6 Rc5 Bhd4 Qgg8 Bc6+ Qhe4 Bg4+ Kg2 Bf5 Kh1 Bh3 Re8+ Kd7 Re7+ Kc8 Q2g2 Nf4 Qeh7 Kb8 Qf3 Nd3 Qfe4 Bcb5 Qe2 Bc6+
B1RkrNBq/n4PBp/P2B4/qB6/2b2Q2/3R1qb1/b7/1RKBNbB1 b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 b4 e5 h4 f5 hxg5 a5 bxa5 Nc6 Qc2 Nce7 Qd1 f4 f3 Nf5 exf5 e4 Ba3 e3 Bc1 Ra6 Rh4 Re6 Rh1 Re4 fxe4 Kd7 Qb3 Ke7 Qd1 Ke8 d4 c5 g4 b4 a4 c4 d6 c3 e5 c2 f6 f3 g6 e2 Kd2 b3 g5 b2 d5 f2 f7+ Kd7 g7 Qe7 g6 Qh4 a6 Ne7 g8R Qg4 g7 Qc4 a7 Qc5 a8B Qb4+ Nc3 b1B a5 Qb6 e6+ Kd8 d7 Nf5 e7+ Kc7 d8B+ Kd7 e8B+ Kd6 a6 Nh4 Rh3 Bg4 Bb2 e1Q+ Kc1 Qe5 Qf3 Qbd4 Be2 f1B Be7+ Kc7 d6+ Kc8 d7+ Kc7 d8B+ Kc8 Qf4 Nf3 B8b5 Ba2 Bb6 Bge6 Bd6 Bec4 Na4 Qh5 Ba7 Ne5 Rd3 Nc6 Nb6+ Kd8 Rb1 Qf3 Nd7 Qe5 Bac5 Na7 Bd1 Qe8 Bbd4 Be7 Bc3 Bh4 Nf8 Bg3 Ba1 Qe1 Bae5 Qa5 Bcd4 Qd5 Nf3 Qc6 Bg1 Qd5 Ne1 Qf3 Kb2 c1Q+ Ka1 Qce3 Kb2 Qee4 Kc1 Qd4 Bf6+ Kc8 Ng6+ Qd8 Re8 Rf8 g8B Qa1 Re7 Re8 Nf8 Qa5 Bh8 Qe5 Rc7+ Kd8 Rc5 Qeh5 Bb2 Qe5 Rc7 Qh8 Bg7 Bcb3 Rc5 Bc4 Rc8+
1k1RB2B/1n1K1N2/bp1Q2q1/Rp2r1P1/5Rp1/1PN4R/1RRNR3/2qb3r b - - 0 1 illegal: Other
1b1kr1R1/3N1b1B/RnnR3q/R6R/3PN1b1/2r1Q1Rq/N2Pq3/RKB1r3 b - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 b5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 b4 a5 f4 e5 g4 h5 b6 c5 f6 c4 b7 c3 g6 e4 g5 c2 g7 e3 b5 h4 b6 h3 f5 a4 g6 h2 f7+ Ke7 f6+ Kd7 Nf3 e2 Ng5 a3 Nc3 a2 Nge4 Na6 b8R Qc7 b7 Bd6 f8R Nb4 f7 Ra3 Ra8 Qc6 b8R Nd5 Ra6 Nge7 g8R Nb6 Rba8 Bb8 g7 Qh6 Rd8+ Kc7 f8N Nc6 Bg2 Bg4 Rd6 Rb3 Nd7 Rb1 Rd8 Re8 g8R Qh3 Rg1 h1B Bf1 Bhf3 Rg3 Bh5 Rd5 Bf7 Rh5 Bg4 Raa5 Rb3 R8a6 Ra3 Ndc5 Rb3 Rd6 Kc8 Nd7 Kd8 Rb1 a1Q Na2 Qc3 Ra1 Qe3 Bg2 Qh6 Bf3 Bge6 Bg4 Rd3 Bf5 Rc3 Bh7 Bf5 Kf2 e1R Qe2 Bg4 Qe3 Rg1 Bb2 c1Q Ba3 Bf5 Ke2 Qb1 Bc1 Qb5+ Kf3 Bg4+ Kf2 Rg2+ Ke1 Re2+ Kd1 Rd3 Kc2 Re1 Nb4 Rc3+ Kb1 Qe2 Na2
2Bq2QR/2N1n1Rr/6qB/P2N3b/3RrR1N/3RRnb1/1k1Rr1bP/3K1n2 b - - 0 1 illegal: No possible last move
q1kBn2B/1n1PR3/r3Br2/B1b1r1Q1/2BqBq2/1bB4K/N2bN2P/R5R1 b - - 0 1 illegal: No possible last move, all moves rejected
1R5K/1N3q1b/2qN1N1N/1n3R1Q/kb4P1/2B1nq2/N1rRPn1r/2qB1N1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 c5 Kf4 h5 Kf5 a5 b4 a4 d4 c4 g4 a3 d6 c3 d5 c2 e6+ Ke8 b6 a2 b7 h4 d7+ Ke7 g6 Kd6 b5 Kc5 g7 Kb4 e7 f6 Kg6 f5 e8N f4 d6 f3 b6 h3 Bg2 h2 Nd2 f2 Bd5 f1N Bb3 Rh4 Nh3 Rh7 Nf2 Ne3 Nf6 Rh8 Rf1 h1Q Bb2 c1Q Bc3+ Kb5 Rb1 a1Q Rb2 Na6 b8N Nc4 b7 Qaa5 Nc6 Rh5 b8R+ Qab6 Nb4 Qe7 d8N Qa7 d7 Ne3 Nb7 Rh2 d8N Nc7 Na2 Qbc6 Nf7 Qhf3 Nh1 Bb4 Rf2 Be6 Nf1 Bd5 Rd2 Be4+ Kg5 Bh7 Nfd6+ Ka6 Qc2 Nb5 Qg6 Kb6 Bd1 Ka6 Nfe8 Nf6 Qh5 Ne4+ Kh6 Kb6 g8N Ka6 Na5 Qaf7 Nb7 Kb6 Nef6 Ra3 Ba1 Rc3 Bb2 Rc2 Bc3 Qfc4 Kg7 Qf7+ Kh8 Ka6 Nd8 Ka5 N8b7+ Ka4 Nh6 Qe7 Rg2 Nf2 Rg1 Qf7 Rg3 Qg2 Rf3 Qh3 Rf4 Qhf3 Rf5
qq5B/B2PKN1b/r3Pn2/1b1N2bn/k5B1/2rBB2B/BbN4Q/R1R1q3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 c4 d4 a4 g4 c3 b4 a3 d6 h4 b6 Kc6+ e6 h3 e5 f6 d5+ Kb7 b5 a2 g6 h2 d7 c2 e7 Qe8 Ke6 f5 d6 f4 g5 f3 g7 f2 g6 Ra3 Qe2 Rg3 Na3 Rb3 Bh3 f1B Be3 c1B Nc2 Nf6 g8B Rh4 g7 Rd3 Bh7 Ng4 g8B Rd5 Bd3 Bb2 Qd2 Rh8 Ne2 Bh6 Nf4 Rc5 Nd5 Bg5 Qe2 Qd8 e8B Nf6 Bh5 Rc3 B5g4 Nh5 Rg1 h1Q Qh2 Be2 Rgc1 Rh6+ Kf7 Qc7 Ke8 Qe1 d8N+ Ka8 Bf7 Nd7 b7+ Kb8 Bfe6 Ndf6+ Kf8 Qb6 Ke7 Ka7 Nf7 Bf1 b8B+ Kb7 Rab1 a1Q Ba7 Qa3 Ra1 Rg6 Bb8 Qa8 Bc7 Qba7 b6 Kc6 b7 Q7b8 Bcb6 Bd7 Ba7 Bg2 Bad4 Be4 Ba7 Rh6 Bad4 Bh7 Ba7 Qg8 b8B Qc8 Bc7 Qcb8 Bcb6 Be8 Bbd4 Bd7 Nb6 Be8 Ba2 Bd7 Nd5 Be8 Bdf5 Kb5 Be4 Ka4 Bd3 Bb5 d7 Rg6 e6 Rg8 Rab1 Rgc8 Be5 R8c6 Ra1 Ra6 B5f4 Bh4 Bh6 Bg5 Bg7 Rc8 Bh8 Rc5 Qh1 Rc3 Qh2
qN1N2N1/PnR1bQ2/PKbb1NR1/2N5/r4N2/3nBRb1/7q/k1r1qBN1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 g5 f4+ Ke4 h4 e5+ d6 b5 d4 b4 a4 b3 h6 g4 h7 c6 d5 g3 f6 g2 f5 b2 a6 Nh6 h5 Nf7 a7 Bh6 d7 Re8 h8N Bf8+ d6 Ba6 a5 Bb5 a6 Be7 h6 Rg8 h7 Rg4 Rh2 Qf8 Ra3 Nd8 f7 Nb7+ Kb6 c5 d8R c4 f6 c3 d7 c2 Rc8 Bc6 Be3 c1B d8N Bd2 Qe2 Bdb4 Ng6 Bbd6 h8N Kd5 Rh6 e4 Rd3+ Kc4 Nc3 Kb3 Rc7 b1Q Qf2 Qe1 Nf4 Ka3 Qf3 Kb2 Nhg6 Ka1 Ncd5 Qe8 f8N Rh4 Bc1 e3 f7 e2 Nf8e6 Qg8 f8N Rg4 Nfh3 Ra4 Nc5 Qh8 Qf7 Qg8 Nf3 g1Q Nd7 Qh2 Nfg1 Qg2 Nhf4 Bg5 Nge7 Qh2 Rg6 Bb5 Nce6 Nc6 Rc8 Ne5 Rf3 Nd3 Be3 Bh4 Rc3 Rc8 Ndc6 Rc7 Rc5 Qa8 Ng8 Bhe7 Ndb8 Rc8 Ncd8 Be8 Ra5 Rc1 Rc5 Bb5 Rc7 Bc6 Rgg3 Qef2 Rg2 e1B Rg6 Qe2 Nc5 Bg3 Ndf6 Qd1 Ne8 Qe1 Nef6
b1qQr3/RNP3Rn/2B1R1RR/K1n2n2/1B1nN1R1/1r1n3n/2k3P1/b1B4R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 h5 Kb4 d5 f4 e5 c4 e4 b6 a6 f6 Kg6 b7 Kf5 g6 e3 g7 Ke4 f7 e2 f5 e1N f6 d4 Nf3 d3 Ne5 d2 Nd3 h4 Nc3+ Kd4 Ne4 Nh6 g8R h3 Rg7 Qe8 Ka5 h2 b4 Nd7 b8R Nc2 b5 Nf5 c6 Rh3 c5 Bb7 c7 Qc8 b6 Rf3 Rg6 Bg7 c6 Nf8 Ndc5 Nh7 f8R Rb3 f7 Ke3 Re6 Ncd4 Rg8 Bf6 f8B Be5 Rg1 h1N Rg7 Nf2 Rh1 Nh3 Bb5 Bf6 Qh5 Be5 Qe8 Bf6 Ba4 Ke2 Qe7 d1N Qd8 Ndf2 Ra3 Nd3 Rg6 Qd7 c8R Bh8 Rc7 Qc8 Rd7 Bf6 c7 Bd5 Rh2 Kd1 Rh1+ Kc2 Rdg7 Be5 Rb7 Rb8 Ra7 Ba8 b7 Bf6 Bb5 Be5 Kb6 a5 Ra4 Bf6 Rb4 a4 Bc6 a3 Ka5 a2 Rh6 a1N Rgg6 Qd7 Ra4 Rc8 b8R Bh8 Nb7 Bf6 Qe7 Re8 Qd8 Qc8 Bfa3 Rb1 Bb4 Nab3+ Kb6 Nbc5 Ka5 Rb3 Qd5 Nf3 Ng5 Qd8 Bba3 Re7 Rg4 Be5 Ne4 Ba1 Bb4 N3d4 Qd6 Qd7 Rbg8 Re8 R8g7 Qc8 Qd8
2b1nNR1/5B2/R1B1R2r/R2R3P/1bK3bk/rpnN1RP1/2Q2Rq1/B4n1r b - - 0 1 illegal: No possible last move, all moves rejected
2Q4n/BB1K4/1r1pR1R1/2R2b1r/n4N2/b1PR1q2/1kRNRP2/n2bR1rN b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 h5 Kd4 a5 Kd5 e5 g4 a4 b4 d6 b6 h4 f6 e4 c6 h3 g6+ Ke8 g5 e3 c7 Kd7 b7 h2 c3 a3 b5 a2 f7 e2 b6 e1N g7 Rh5 Nd2 Nc6 b8R Rh6 g6 Ra4 b7 Qe7 Bg2 Ne5 Ne2 Rg4 Ng3 Nc2 Re1 Rb4 Nh1 Qf6 Qg4+ Ke7 Qh3 Bf5 c8R Rb6 Rc5 Rh5 Re8+ Kd7 b8R Nd3 Rbc8 Nh6 g8R Nb2 g7 Na4 R8e2 Be7 f8R Nf7 Rce8 Nh8 Bf3 Bd8 R8e6 Be7 Rb1 a1R Ba3 Qf7 Rbc1 Bg5 Re8 Bf4 Re3 Qf6 Rd3 Rab1 R6e2 Na1 R8e6 Bg5 Rc4 Be3 Bc5 Kc7 Qg4 Kb7 Bd4 Ka6 Rc6 Ka5 Rc5+ R6b5 Kc6 Qf7 Ng3 h1B Bg2 Qf6 Kd7 Qf8 Bb7 Bf3 Nh1 Bh6 Ree3 Bd1 R3e2 Bf4 Qf3 Bh6 Qc6 Qa8 Qc8 Be3 Ba6 Qf3 Bb7 Bg5 Rc6 Be3 Ba7 Bc5 Rc7 Ba3 Rc5 Nb2 Re8 Ka4 g8N Rb6 Ne7 Be4 Nd5 Bf5 Nf1 Kb3 Nf4 Na4 Nd2+ Kb2 Rg8 Rb4 Nh3 Rg4 Nf4 Rg1 Rg4 Ka2 Rg8 Rb6 Rg6 Kb2 Rc2+
1N6/1BR1rNP1/2R1BBQ1/1bNB1q2/p3bB2/nq4Pq/2rb4/BBk3Kn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 b4 Ke6 e4 f5 c4 d5 c6 h5 g6 a5 b6 d4 c7 f4 g3 f3 c5 d3 g7 a4 b7 h4 b5 h3 b6 h2 c6 d2 Bg2 Nf6 Nc3 Ba3 Bb2 Rf8 Qc2 d1B Nh3 Re8 Ng5+ Ke7 e6 Kd6 e7 Ke5 Nf7+ Kd4 e5 Nd5 e6 Nd7 b8B N7f6 b7 Nh5 Qg6 Nb4 Ne4+ Kd3 Bf6 Nf4 Rc1 Bd7 c8B Bc2 c7 Bb5 Bd7 Bb2 c8B Bc3 Bbe5 Nh3+ Kf1 f2 b8B Qc7 Bb7 Bd2 Ba1 Qc4 Rg1 h1Q Bdc8 Rd8 e8N Rd7 e7 Qb3 Nc7 Ra6 Bf3 Rc6 Na6 Bb1 Bd6 Nc2 Nb8 Na3 Rc5 Rdc7 Be6 Rd7 Re5 Rc4 Rc5 Kc2 Rc7 Rc5+ Be2 Qh2 e8B Re7 Bec6 Qh1 Bcd5 Qhf3 Na6 Qf5 Nb8 Rc3 Kg2 f1Q+ Kh1 Rc6 Bf4 Nf2+ Kh2 Nh1 Bd3+ Kc1 Rg2 Be3 Rf2 Q1h3+ Kg1 Bd2 Rf3 Bc2 Re3 Bd1 Bb1 Rc2 Rec3 Bf3 R3c6 Bg2 Nc5 Bf3 Bh4 Be4 Bhf6
2rR1RBk/B6R/R2b4/3nrRnP/n2pR3/1Q3P1q/2N1NK1n/1bN1n1R1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 c4 d5 b4 g5 c6 Kg7 h6+ Kh7 b6 a5 c5 e5 h5 g4 c7 a4 f3 g3 b7 g2 c6 a3 b5 a2 b6 e4 f6 e3 f7 e2 Na3 Bh3 c8R Ra6 c7 Qg5 Rd8 Be6 c8R Ra7 Nc2 Qg4 Rc4 Nc6 b8N Nge7 b7 Ra5 Nd7 Ne5 b8R Qh3 Re4 Ng4 Nc5 Nh2 Rb5 Bf5 Kf2 e1N Ne2 g1N Nb3 d4 Ba3 Nd5 Bc5 Be7 f8R Bd6 Nbc1 Rg8 Ba7 Kh8 h7 Bg6 Rab1 a1N R1b3 Bf5 Ra3 Nb3 Qd3 Nc5 Qb3 Na4 Ra2 Nc7 Ra1 Bg6 Rbf5 Re5 Ra2 Nd5 Ra3 Nac3 Ra6 Na4 Nf4 Ne2 Rg1 Nec3 Bb5 Nc5 Be8 Ne6 Nfe2 Na4 Bf7 Ng5 Rfe8 Kg7 h8R Rf8 Rh6 Bh7 Bg8 Kh8 Re7 Re8 Rhf6 Bg6 Rdd7 Rc8 Rd8 Be8 Rff7 Bb5 Rff8 Bd3 Na1 Bb1 Nc2 Bb8 Rg7 Bd6 Rh7+
bn5R/r7/b1n4b/1B1B3K/1N2R1PQ/kB1bNBNn/P2B3p/1r1B1Bq1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 b5 Kg4 f5+ Kh5 d5 e4 f4 c4 h6 g4 f3 e6 d4 e5 b4 g6 f2 a6 b3 a7 d3 g7 b2 c6 d2 c5 Na6 c7 Qd5 c6 Bb7 c8N+ Ke8 c7 Qg2 e7 Kd7 e8B+ Ke6 Qe1 Kd5 e6 Kc5 e7 Kb4 Ba4 Nc5 e8B Nd7 Nb6 Nb8 c8B Ne7 g8B Nec6 Ne2 Qg1 Nbc3 d1N Ng3 b1B Nc4 Bd3 Bd2 Rh7 Ne3 Ka3 Bb5 Ba6 Rh4 Rb7 Bce6 Rb6 Ba4 Rb1 Beb3 Bb7 Ncd5 Bda6 Bg2 f1B Nb4 Nf2 B8d5 Bfd3 Bf1 Bg7 Rh2 Nh3 Bd1 Bf8 Bab3 Bg7 Rf2 Bf8 Rf4 Bg7 Re4 Bf8 Kg6 h5 Bd7 h4 Kh5 Bh6 Qf2 Nd8 Bb5 Ndc6 Qf6 Nf2 Qg5 h3 Qh4 h2 Re8 Nh3 Rh8 Nd7 B5f3 Rg8 a8B Rg7 Bfd5 Ndb8 B5f3 Bc8 Bfd5 Ra7 B5f3 Bcb7 Bfd5 Rb2 Rc1 Rb1 Rc4 Bg7 Rf4 Bh6 Re4 Bc2 Rc4 Bd3 B5f3 Na5 Re4 Bc6 Bb7 Bd5 Bc8 Ba8 Bce6 Nac6 Bed5
rb2K3/B3B1rq/n1B1R3/1b2NR1P/3Q1B1P/2nB1N2/rNp2nk1/B2nB3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 f5 Kf4 a5 Kg5 c5 Kg6 a4 e4 a3 d4 a2 h4 c4 b4 f4 b6 c3 b5 c2 d6+ Ke6 d5+ Kd7 Kf7 g5 b7 f3 b6 g4 Na3 f2 Nc4 g3 Bd3 f1N Nb2 g2 Bd2 Nc6 b8B Bg7 b7 Ra4 Nf3 g1R Be1 Nb4 Ba7 Qa5 b8B Nf6 e6+ Kd8 e5 Ne3 d7 Ba6 Rh2 Qc7 Rf2 Ne4 Qd2 Re8 Qc3 Rg5 Qd4 Bb5 Rd1 a1N Rdd2 Qa5 Rde2 Ra2 Bd6 Bh6 Be7+ Kc7 d8B+ Kb7 d6 Kc6 d7 Nbd5 Bc7 Nd1 d8B Nb3 Bf6 Bf8 e7 N5c3 e6 Nbc5 Bf4 Na6 Re3 Bh6 Rf1 Reg8 e8N Nef2 e7 Qc7 Nd6 Bf8 Ke8 R5g7 Ndc4 Qb7 Nb6 Rh8 Nd7 Qc7 Qb6+ Kd5 Re6 Rhg8 B6e5 Rh8 Be2 Ke4 Qd4+ Kf5 Bc4 Kg4 Bd3 Kh3 Bf6 Bc4 Nde5 Qb7 Bdb6 Kg2 Bc5 Qe4 Kd8 Qf5 e8B Qh7 Bc6 Bb5 Ke8 Be7+ Kd7 Ra8 Bd6 Bd8+ Bde7 Rg5 Bg7 Bc7 Bh8 Bb8 Ke8 Rg7 Rg1+ Kh3 Rg5 Qh6 Rf5 Qh7 Bd7 Kg2 Bc6 Rg4 Bhf6 Rg7 Nbc4 Nb4 Nd7 Ra3 Qe3 Ncd5 Ba1 Na6 Nb2 N5c3 Nde5 Ra2 Qd4
1K3B2/Nb2nr2/3Br2P/Nn4br/1BPn1BBR/Q1p1qr2/1R1k2N1/1B3B2 b - - 0 1 illegal: No proof kernel
1rq1b1KR/B6N/Pn3N1N/Br2p1N1/n1P1B3/N1b2Q2/R4b1N/kn1N1b2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 b5 Kd5 g5 f4 e5 c4 g4 h4 g3 a4 d6 a6 b4 a7 g2 h6 b3 h7 b2 a5 Qb6 h5 Bd7 a6 Be7 h6 Bf8 c6 Qb7 Na3 b1N Ra2 Be7 Nf3 g1B Bd3 Bf8 Bd2 Bg7 Be4 Bf8 Ba5 Be8 Nh2 Qb6 c7 Qb3 c8N Qa4 Ne7 Nc6 Qf3 Rb8 a8N Nd8 Nc7 Nb7 Ncb5 Nc5 Nc3 Rb5 Nd1 Qb3 Re2 Bf2 Ra2 Kf7 f6 Qc2 Nf5 Kg6 f7 Na4+ Ke6 d5 Bb6 d4 Ba7 Bd6 f8B Bc7 Bb4 d3 Ba5 Nf6 Ke7 d2 Ke6 Rg8 h8N+ Kh7 Nf7 Kg6 h7 Nd5 Ng5 Ndb6 Ke7 Rh8 Ke6 Qd3 Ke7 Qd8+ Ke6 Qa8 Ke7 Qc8 Nfe3+ Kg7 f5 Rg8 Nc3 d1B h8N Be2 Ncd5 Bf1 f6+ Kh6 f7 Bd6+ Kf6 Bb4 f8N Bc3 Ke7 Kg7 Nfh7 Rf8 Nhf7 Rh8 Nf5+ Kg6 Ndf6 Rf8 Bc6 Rh8 Ne3 Rf8 Qe2 Rg8 Nd1 Kf5 Qh5 Kf4 Be4 Rh8 Nb2 Ke3 Qf3+ Kd2 Nd1+ Kc1 Nh6 Rg8 Ba8 Rg7+ Kf8 Rb7 Kg8 Rb8 Be4 Bc5 Rg2 Bf2 Ne3 Kb2 Nd1+ Ka2 Nh6g4 Rb3 Nf8 Bd3 Nf1 Rb5 Rh8 Ka1 N8h7 Bh4 Nfh2 Bf1 Nh6 Bhe1 Rd2 Bf2 Ra2+
1br3R1/n1PB1Nk1/5n2/r1P1Kb2/1BR1b1qR/3NR3/R2n2Bp/2nRR2Q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 g4 h5 b4 e6 f4 h4 c4 h3 c6 a4 c7 h2 c5 a3 b6 a2 g6+ Kf6 g5+ Kg7 b5 Na6 b7 Qe8 b8R Qc6 b6 Bd7 b7 Nh6 f6+ Kg8 g7 Nf7 f5 Nd6 Ne2 Ne8 Ba3 Nb4 Nf4 Ra5 Ra8 Qa4 Ke5 d4 b8R d3 Bg2 d2 f7+ Kh7 g8R Bh6 f8R Nf6 Qf1 d1B Nd3 Bf3 Rbe8 Be4 Nd2 Qd1 Ra6 Qg4 Re1 a1N Nc4 Nb3 Nd6 Nd2 Nf7 Bg7 Qf3 Bh6 Re3 Bc8 Rd1 Nc6+ Kd6 e5 Bb4 Bd7 Qf1 Na7 Qh1 Bec6 Re6 e4 Ke5 Bc8 Ree1 e3 Rd8 e2 Rd4 Be4 Rc4 Rb5 Ra2 Ra5 Rge8 Kg7 g6 Be3 Rd8 Bg5 Rdd4 Bd7 Re7 Rc8 Re6 Nb3 Re7 Bd2 Re8 Nc1 Re6 Kg8 g7 Kh7 g8B+ Kg7 Rg1 e1N Re7 Nc2 Rge1 Ne3 Re8 Nf1 Bh7 Bb7 Rde4 Be6 R4e3 Bbd5 Rh8 Be4 Bg6 Bd7 Rh4 Be6 Nh8 Bd7 Be8 Be6 Nf7 Bc3+ Rd4 Nd2 Bd7 Nb5 Reh3 Ne8 f6+ Kg6 Bf1 Ra3 Rhe3 B6f5 Nd8 Ra6 f7 Nf6 f8R Kg7 Ba3 Ba5 Re8 Bb6 Rc4 Ra5 Nf7 Ba7 Bb4 Bb8 Bg2 Na7 Rg8+
3R4/4PR2/RrpR1R2/b1r1Rpq1/BNR3k1/1nB2Nr1/1B1b1KP1/3b2nQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 h5 d4 f5 b6 a5 b7 c6 g6 h4 g7 h3 e6 Kf6 d6 h2 e7 a4 e8R a3 e5+ Kg6 b5 a2 d7 Qe7 d8R Qf7 e6 Ne7 g8R+ Bg7 b6 Nd7 b8R Qf8 b7 Rh6 d5 Nc5 d6 Ra6 d7 Rh3 Bb5 Qf6 Nf3 Kh5 Bb2 Ng6 Kf2 Ne5 Ba4 Kg4 Na3 Nb3 Nc2 Qg5 Rgf8 Bh6 Rf6 Rg3 Nb4 Rb6 Rc1 a1B Ra8 Na5 b8R Ba6 Rb7 Be2 Ra6 Nb3 Rg1 h1R Rc4+ Qf4 Qb1 Bd1 Re1 Rh4 e7 Rhh3 Ref8 Bg5 R8f7 Rh1 Bc1 Bc3 Bb2 Bd2 Re2 Re1 Ree4 Re3 Red4 Rc3 Rdd6 Bh6 Rcd4 Rc5 Rc4 Bc2 Qh1 Bd1 Rc3 Qg5 Re3 Ng6 Re5 Nf4 Rba7 Rb8 Rb7 Ne2 Rb5 Rb6 Rba5 Rd5 Rc5 Ng1 Rc2 Rc5 Rc3 Qg7 Rc4+ Bhf4 Rda8 Qg5 d8B Rb7 Ba5 Rb6 Bd4 Bc3 Rad8 Bc1 Na2 B3d2 Bac3 Ba3 Bb2 Bab4 Bbc3 Ba5 Nb4 Bc2 Bb2 Bd1 Bdc3+
3Q4/2nn1n2/3bqrN1/1qpNp3/3BBrNN/R1PNR1NP/k1N5/2KB2b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 e4 e5 exd5 b4 f5 Be6 fxe6 b3 axb3 Nc6 b4 Nb8 b5 Bb4 Na3 Bd6 Nb1 Bf8 b4 Ke7 d4 Kd6 Kd2 g5 h3 a5 e7 f5 e8B c5 b6 f4 h6 f3 c3 g4 h7 f2 b7 a4 b5 g3 b6 g2 Bd3 f1Q Na3 Ra7 Rb1 Qf7 Be4 Qf5 Ne2 g1B Bh5 Qc7 Ng3 Qff7 Rb3 Qf1 Nc2 Nd7 b8N a3 b7 a2 Nc6 a1N b8N Ngf6 N6b4 Qb5 N8a6 Rg8 h8N Ne8 Nd3 Bf2 Ng6 Ng7 Re1 Qbb7 Re3 Qcb8 Nc7 Ra6 Nh4 Ne8 Bhf3 Ke7 d6+ Kf7 d5 Q8c8 Bg4 Bg1 Be2 Rg4 B2f3 Nb6 d7 Nd6 d8N+ Kf6 Nc6 Rf4 Ne7 Nf7 d6 Nd7 Be2 Qb5 Ncd5+ Ke6 Neg6 Rb6 Bb2 Ra6 Kc1 Be7 Qd2 Qg8 Bd1 Bf8 Nce1 Nc2 Ba3 Nb4 Nc2 Rc6 Bb2 Na6 Ba3 Nb6 d7 Nc7 d8N+ Kd6 Bb2 Nd7 Ba3 Nh8 Bb2 Qe6 Ba3 Rb6 Nf7+ Kc6 Nh6 Bd6 Bb2 Nf7 Ng4 Ra6 Ndf6+ Kb6 Nd5+ Ka5 Rf3 Ka4 Nde7 Qf5 Ndf2 Nf6 Kb1 Qc8 Qd5 Qcd7 Qa8 Bh2 Nd5 Bf8 Nd3 Bg1 Qd8 Re6 Ba3 Bd6 Bc1 Qe7 Bd2 Nd7 Be3 Ref6 Kc1 Qe8 Bd4 Qe6 Ncb4 Qa6 Re3 Qb5 Rb1+ Ka3 Nc2+ Ka2 Rb4 Bf8 Rb3 Bd6 Ra3#
5Br1/3Kn1b1/3p4/1BkBPnRq/2r2rNb/1pQ4B/NBRPR2B/B3q3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Ba6 bxa5 b4 c4 Bb5 cxb5 Bd6 Qa4 Bc5 Qd1 Bf8 Kf2 Ke7 Ke3 f5 Kf4 c5 a4 b3 h4 g6 e4 c4 b6 c3 e6 Kd6 b7 c2 a6 Bg7 h6 Rh7 a5 Ne7 h5 Rh8 h7 Nbc6 b8B+ Kc5 h6 Qf8 a7 Bb2 a6 Bf6 Bb2 c1B Nc3 Kd4 Nf3+ Kc5 Bh3 Qf7 Rg1 Ng8 e7 Bg7 e8B Kc4 Rg5 Bf8 Ra2 Nd4 Ke5 f4 Nh2 f3 Qc2 f2 Ng4 Bg7+ Kd6 f1R Bc7 Rd8 a8R Ne7 a7 Rg8 h8B Rf4 h7 Rc8 Rb8 Bf6 a8B Bg7 Ba1 Bb2 Rbb5 Qf5 Re5 Kb4 Bb8 Rc4 Bd5 Ba3 Qc1 Qf7 Rc2 Bb2 Rgf5 g5 Na2+ Kb5 Re6 Qh5 Bc7 Bf6 Bg7 Bc3 h8B Bb2 Ne5 g4 Rg5 g3 Ng4 g2 Bf8 g1Q Bb8 Bc3 Qb2 Bg7 Bc7 Ba5 Qc3 Qe1 Bb2 Bb6 Bb8 Bc5+ Kc7 Ndf5 Kd8 Rf1 Bh2 Bf2 Ba1 Kc5 Kc7 d6 Bb5 Qh6 Kd7 Bh4 Qd3 Qh5 Qf3 Bh6 Bhb2 Bg7 Qc3 Rf3 e5 Nd4 Rf6 Rf1 Rf3 Ndf5 Re3 Rf4 Re2
1r3nbb/nNrP1N2/2BKPBq1/N1N3B1/NQ3p1p/2NRRN2/2kq3q/8 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 d4 h5 g4 h4 b4 c4 e6+ Kd6 b6 f6 g6 c3 g5 a4 b5 c2 b7 a3 b6 a2 e7 Rh6 e8N+ Kd7 g7 f5+ Ke5 Rf6 e4 Ra7 g6 Be7 d6 Kc6 d7 Bc5 Nd6 Bb4 d5+ Kc5 Nc3 Qf8 d8B Ra4 Rh3 Ba5 Qg4 Kb4 Rd3 Kb3 Bg5 c1Q Nf3 Qe3 Bg2 Kb2 Re1 Qg1 Ree3 Ne7 g8N a1Q g7 Qge1 Nh6 Rb4 g8N Qed1 Nhf7 Rg6 Nf6 Rb5 Nd7 Kc2 Nc5 Qab1 N5a4 Be6 Qf4 Nc8 Bdf6 Rg7 Qg4 Na6 b8N Qd2 b7 Nc7 Na6 Na7 N6c5 Qb8 Bh1 Qg1 Bg2 Qg8 b8N Qh2+ Qf4 Qe8 Nc6 Rb8 Ndb7 Bb6 d6 Bb3+ Ne7 Ne6 Nc6 Bc4 Nca5 Nf8+ Kd4 Qe6 e5 Ba2 Qe4 f4 Bh1 Qf5 Bg2 Qg6 e6 Bb1 Kd5 Bd8 N7e5 Rc7 d7 Be7 Qd4 Bd6 Nf7 Be5 Qb4 Bd4 Be7 Bh8 Kd6 Qf5 Ng1 Kc1 Rd5 Be4 Bh1 Kc2 Rdd3 Qf6 Bd8 Bh7 Bc6 Bg8 Nf3 Qg6 Bdf6
Q1NN2b1/1bp1NN2/5R1R/P2npNb1/Pr1BnNR1/1Bq1N2K/3q2r1/6k1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kd7 Kf2 Kd6 Kg2 Kc5 h4 Kd4 a4 b5 h6 e5 f6 g5 d6 g4 f5 g3 h5 b4 d7 b3 h7 b2 f7 Ba3 f8N Ra6 h6 Ne7 f6 Bc5 f7 Bb6 Qf3 Ra7 Qa8 Bb7+ Nf3+ Ke4 d4 Qe8 d8N Nec6 d5 Bc5 d6 Bf2 d7 Qe7 Ng6 Qa3 f8R Qd3 Nf7 Nd4 d8N Nb5 Na3 b1B Nd4 Nd6 Ne7 Na6 Nac2 Qc3 Be3 Rg8 h8N Ba2 h7 Nb4 Rh6 Nd5 Kh3 g2 Nhg6 g1Q h8N Bh4 Ndf5 Kf3 Bd4 Ne4 Bc4 Bg5 Nf4 Qd1 N7d6 Qdd2 Nce3 Kf2 Nhf7 Bb3 Ra3 Kg1 Ndc8 Ra6 Ra2 Rb6 Rc2 Ba2 Bb3 Rb4 Rb2 Bf6 Rc2 Rg2 Rg8 Bg5 Rg7 Qcd3 Rcc6 Q3c3 Rcf6 Nb6 Bc2 Be6 Bb3 Nd5 Nh8 Bg8 Nhf7 Bh4 Rg3 Bg5 Rg4
KB1R4/PQ3N2/q3B1n1/bR5n/2r3pB/k2BR1Pp/1B1B1q1N/1B1qrb2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 g4 c4 Qd6 cxd5 Qh6 Be2 Be6 Bf1 Qg5 hxg5 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 f4 h5 a4 c5 g6 b5 g3 e5 a6 h4 a5 h3 g7 c4 d6 c3 Kd5 e4 d7 c2 d8B e3 a7 e2 a6 e1Q f6 Qe2 f5 Nh6 g8B Qd3 f7 Bg7 f8B+ Kb3 f6 b4 f7 Qe2 Bd6 Qd2 f8B Qe2 Nc3 Nc6 Bb8 Qe7 Nf3 Na5 Nb5 Qe1 Bd2 Kb2 Bd3 c1Q Nh2 b3 Ra3 Nf5 Bh4 Qc3 Nd6 Qf2 Qf3 Nc4 Kc6 Qa5 d5 Bc3 Nf7 Ng7 d6 Nh5 d7 Rh6+ Bfd6 Re6 d8R Re1 Be5 Bf5 Bh8 Ne5+ Kb7 Ng6 Qd5 Be4 Rf1 Bg2 Bb1 Qd4 Rf5 Qf2 Qc6 Bf1 Rb5 Qa4 Bh7 Ngf4 Bhd3 Ng6 Bbe5 Rc8 a8B Qa5 a7 Rc7+ Kb8 Qa6 Qb6 Rc4 Bd5 Ree4 Be6 Re1 Rd4 Bb4 Ka8 Ba5 Bb8 Bb4 Ra4 Ba5 Rab4 Ka3 Qb7 b2 Rd8 Rc5 Re4 Rc4 Bbc2 b1Q Re3 Qc1 Bb1 Qd1 Bb2+
2k1KR2/RpBnp2B/n3R1RQ/bR6/1N3P1n/3rBb1P/5Rq1/RrN3n1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 c5 Ke4 g5 Ke5 g4 a4 g3 f4 g2 d4 c4 f6 c3 d6 c2 a6 Qa5+ d5 Ra7 f7 Kd8 d7 Qd2 Ke6 Qc3 h6 Qe1+ Ne2 g1N h3 Qa5 h7 Ra8 a7 Bg7 f8R+ Kc7 Kf7 Nf3 d8B+ Kd7 d6 Be5 Rg1 Nh2 Be3 c1N Rg6 Na2 Bc7 Bd4 Nbc3 Nf6 Nd5 Nc6 Nb4 Nc3 Nc1 Rg8 h8R Qb5 a5 Nf3 a6 Qe2 Rhh6 Qg2 Bd3 Nh4 Qh5 Bb6 Bb1 Rb8 a8R Ba5 a7 Ne2 Ra2 Ng1 Rf2 Ne8 Re6 Nf6 Bh7 Rg5 Rg6 Rb5 Qh6 Rb6 Na6 Rb1 Nb4 Nd4 Rg5 Nb3 Rb5 Nc5 Rg8 Na6 Rg6 Bb6 Bd8 Bc5 Ba5 Bb6 Kf8 Kd8 d7 Kc7 d8R Bd7 Ree5 Bg4 Re6 Nd7+ Ke8 Rc8 Rb8 Bf3 a8R Qg5 Ra7 Qg2 Rba8 Rb8 Kf7 Rc8 Rf8 Rd8 Rd2 Ndc5 Re2 Rd3 Ke8 Nd7 Rf2 Nab8 Ra6 Kc8 R8a7 Bc7 Bab6 Bd8 Ra1 Na6 Bbd4 Bc7 Be5 Ba5 Bc7
2q3k1/R2qQnq1/1NpbR1nN/n1RprP2/3P3R/1r6/R2RB3/BN1K1R2 b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 d6 b4 Ba6 b6 Nc6 b7 Rc8 b5 Ra8 b6 Bb5 cxb5 Nb8 d4 Kf7 f4 a5 h4 e5 f6 g5 f5 c6 h6 e4 h7 d5 h5 a4 h6 e3 Nh3 g4 Qe2 g3 Kd1 a3 Ra2 g2 Nf2 g1Q Bb2 Na6 b8N Qg3 b7 Qg2 b6 Bb4 Nd7 Qg3 b8R Qg4 b7 Qc8 Nb6 Nc5 Ba1 Qg7 Ng4 Ne6 Rg1 Ra5 Ra8 Ng5 b8R Ne7 Ra7 Re8 h8R Rb5 h7 Bd6 Qe1 Qd7 Be2 Rb3 Rf1 Ng6 Rg8 Re7 h8R Re5 Rd2 a2 Rh4 Nh8 Rge8 Ng6 Ra4 Qc8 Re6 Kg8 Ra7 Nf7 Rbb7 Qd7 Ra5 Qc8 Rba7 Qd7 Rc5 Qc8 Bc3 a1N Bb2 Nc2 Ba1 Na3 Rdc2 Nc4 Qb4 Bc7 Rd2 Bd6 Raa2 Na5 Qa3 Nb7 Qa7 Na5 Qe7 Qd7 Qd8+ Qe8 Bd3 Nfh8 Re7 Re6 Ra7 Qef8 Qe7 e2+ Kc2 e1Q Bc4 Qe4+ Kd1 Qc8 Ba6 Nf7 Be2 Nh6 f7+ Kh7 f8R Qe3 Rf6 Kg8 Na4 Nf7 Nb6 Re4 Qb7 Re8 Qd7 Qe7 Qe6 Qec7 Qd7 Ree3 Qe7 Q7d7 Re6 Re5 Nh6+
2Nb2R1/1k1R2rN/3n1B1P/Rp1r1R1K/1P1B1R2/1bb1RQ2/4prB1/1qb4R b - - 0 1 illegal: No possible last move, all moves rejected
1BK1R1br/qp1pb3/2B1b3/2n1P3/nB3BB1/1PQ1R3/1NNn2kB/4RbB1 b - - 0 1 illegal: Other
2N1R3/q7/1N3bKn/B2bN3/bpbq1N2/N1pPN3/k1PRB2N/1r2nQ1R b - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 a5 exd5 a4 h4 a3 bxa3 Bf5 a4 Bd7 a5 Bc8 g4 b5 h5 Qd7 g6 Nf6 g5 Qd8 g7 Ng8 Bc4 Ra6 Bf1 Rg6 hxg6 Bb7 Qg4 Ba6 Qd1 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 a4 Kb4 d3 c5 d6 h5 a6 e5 a7 h4 a8R c4 d7 h3 Kf5 h2 a5 e4 a6 e3 a7 e2 Na3 e1Q Nh3 Nc6 Be2 Ba6 Nf4 Qf2 Qf1 Ne5 Bd2+ Ka4 Ba5 b4 Re1 c3 Rd1 Nf3 Rd2 Bc4 Rb8 f6 a8N Qa7 Rc8 Qdb6 d8N Qd4 Nc6 Ne1 Re8 Be7 Ne5 Rh4 Nc7 Rg4 Ncd5 Rg1 Ne3 Qdb6 Ke4 Nh6 g8N Qc5 g7 Qd6 Nh3 f5+ Kf4 Qd5 g6 Bf6 Ne7 Qd6 g8N Qd8 g7 Qd5 Qg2 Qdd4+ Kg3 Rf1 N7d5 Rg1 Nge7 f4+ Kf2 f3 Kg3 f2 g8N f1B Nc8 Qe7 Nhf4 Qea7 Bh5 Be2 Kh3 Bf3 Qf1 Be4 Be2 Bg6 N3g4 Bf7 Nde3 Bfd5 Nge7 Bc6 N7d5 B6b5 Qf3 Rf1 Rg1 h1B Nh2 Bd7+ Kg3 Bg2 Rh1 Rg1 Qf1 Bc6 Nc7 Bgd5+ Kh3 Bh8 Kh4 Bf6+ Kh5 B6b5 Na8 Bd7 Nb5 B7c6 Nbc7 Ka3 Nb5+ Ka2 Na3 Ba4 Nab6 Nf3 Qg2 Rb1 Qf1 Ne1 Kg6
4R3/bN1k2n1/2rRR1PP/1K1n1p2/1p2b1Qb/qBB1R2p/2Rr2N1/4NR1R b - - 0 1 illegal: No possible last move
5Q1N/7b/R1PPqBr1/N2N2bN/2p2qB1/3kBN2/Kp1p2nN/nrN4R b - - 0 1 illegal: No proof kernel
B6n/p2BbB1n/1rp2k1B/2q5/BBN3K1/4BQ1N/PpP1r3/RbNq3R b - - 0 1 illegal: Other
1n2bQ2/bN3bRr/1p1Rp1Bk/1P2pN2/N1q1P2B/1b1N4/3nN2K/2R2NN1 b - - 0 2 illegal: Other
8/1B2B2R/bR1R4/N1r2B2/5QQr/p3Q2q/1rPP1KpN/1k1qNnB1 b - - 0 1 legal: proof: g4 b5 a4 c5 axb5 g5 f4 d5 e4 f5 exf5 c4 h4 c3 f6 Bh6 bxc3 d4 cxd4 Nc6 d5 Nd4 d6 Nf5 gxf5 g4 Ra3 Kf8 Ra1 Bg5 hxg5 Ke8 g6 Kd7 f7 e5 f8N+ Ke8 b6 h5 g7 Kf7 b7 Kf6 b8Q a5 d7 a4 Ng6 g3 Ba3 h4 Be7+ Kf7 f6 Ke6 f5+ Kd5 f7 Kd4 f8B g2 f6 h3 f7 h2 Bd3 e4 Nf4 e3 Qb3 e2 Kf2 e1R Bf5 Bb7 Qg4 Nh6 g8B Qc8 Qe3+ Kc4 d8R Ba6 Rd6 Rb8 Na3+ Kb4 Nc4 Rb5 Bg7 Rb1 f8Q Rb2 Rb1 Rc5 Na5 Rh7 Bb3 Ka3 Bd4 Qe6 Nd3 Qd7 Be4 Nf5 Nf3 Rh4 Be6 Ng3 Qff4 Nf1 B6f5 Ka2 Bb7 a3 Nde1 Qc8 Rg1 h1Q Nh2 Qg8 Nhf3 Qh3 Nh2 Qc4 Rh1 Qe2+ Kg1 Qd1 Kf2 Rb4 Rb3 Ra4 Rb5 Rb4 Rbb6 Rb2 Qee5 Qd3 Qee3 Kb1 Nhf3 Rh8 Rh7 Qb3 Nh2 Qe6 Rg7 Rh4 Rh7 Qb3 Qe6 Qh3 Qee3 Rc4 Bc5 Rc3 Bd4 Rc5 Qee5 Ng3 Ke3 Qc1 Kf3 Qd1+ Qe2 Kc1 Bg1 Nf1+ Kf2 Kb1 Qee3
KB1R2rN/4P2p/n3Q3/b4B1R/5pb1/Q2Nn2B/1RB1p1NP/Q2n1k2 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 a6 bxa6 c4 d4 c3 bxc3 Nc6 c4 Nb8 c5 Qc7 Kf2 Qb6 Ke1 Qd8 e3 d5 Qg4 e5 Qh5 Ra7 Qd1 Re7 Nf3 e4 Ng1 Re5 dxe5 d4 Ra3 d3 Ra1 Qd4 exd4 Be7 Qh5 Bd6 Qd1 Bf8 Kd2 Kd7 Ke3 Ke6 g4 Kd5 c4+ Kc6 e6 f5 e7 d2 a7 Ba6 a8Q+ Bb7 d5+ Kc7 Kd4 e3 d6+ Kc6 g6 e2 g7 Nh6 g8B Na6 g5 Nc7 g6 Nd5 d7 Nf6 d8R Bg7 Ra5 Nhg4 Na3 Bf8 g7 Ne5 Bh3 Nf7 Nc2 Ng5 Ne1 Nd7 Ng2 Ne5 Nf3 Ngf7 Nfe1 Ng6 Nd3 Kc7 c6 Kb6 Kd5 Nh6 c5+ Kc7 Qb3 d1N Qa3 Nf7 Bf4+ Nge5 Rf1 Nf2 Rb1 Nd6 Rb2 Nd1 Bf7 Ndc4 g8Q Bh6 Bg6 Ba6 Qe6 Bc8 Qa1 Bd7 Rab5 Bc8 Q8a3 Rg8 Bg3 Bd2 Bf4 Bb4 Ra5 Kb8 c7+ Kb7 c6+ Kb6 Rc5 Bd7 c8B Nce3+ Kd6 Nf1 c7 Nc6 Be5 f4 Bgf5 Nb8 Bb7 Na6 Bbe4 Ka7 Kd5 Ba5 c8N+ Ka8 Nd6+ Ka7 Nf7 Nfe3+ Kd6 Bc8 Nh8 Bd7 Nb4 Kb6 Bc2 Bc8 Rc4 Kb5 Rd4 Bd7 Rd5+ Kc4 Nd3 Bc8 Qh6 Be6 Kc6 Bc8 Bd6 Be6 Rdb5 Kd4 Kb7 Bc8+ Ka8 Bd7 Bg6 Bg4 Rf5 Ke4 Bb8 Kf3 Rfb5 Be6 Rh5 Bg4 Nde1+ Kf2 Bgf5 Kg1 Qe6 Kf1 Nd3
Q1N2BR1/1br1b1N1/1N1q1b2/2R2PqB/1QQ2n2/3P1BNk/2K5/1rRr1n2 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 f4 Kf7 h4 Kf6 h6 e5 b6 c5 h7 g5 a6 c4 b7 e4 d3 g4 Kd2 g3 a7 e3+ Kc2 g2 h5 c3 h6 e2 d6 e1R d7 Re3 Na3 Rg3 Nb5 Ba3 Be2 Rf3 Rh5 Qa5 d8N Bd6 Ne6 Qb6 Ng7 Nd7 b8N Bb7 Ba3 Be7 Nd6 Nc5 Qc1 Ne4 Nc8 Nd2 Bb4 Qd6 Nd7+ Kf7 f6 Kg6 f7 Rb8 a8B Rf1 f8R Nf6 Ndb6 Rd1 Rg8 Nf1 Rc5 Nd5 f5+ Kf6 Qd2 Nf4 Rc1 Kg5 Bh5 Kh4 Ne2 g1B Ng3 Bd4 Qe1 Be5 Qe4 Kh3 Qc4 B5f6 Ba3 Ba6 Baf3 Rb7 Rd8 Re8 h8Q Rc7 h7 Bb7 Qhg8 Rf8 h8Q Rf7 Qb4 Rf8 Kb3 c2 Qgc4 Rf7 Rg8 Rf8 Ra1 c1Q Rb1 Qd2 Rc1 Qe3 Kc2 Qg1 Na7 Ra8 Nac8 Ra4 Qa5 Rb4 Qa8 Rb1 Qh6 Ne2 Qd2 Nf4 Qdb4 Qg2+ Ne2 Qg6 Ng3 Qg5 Qbb5 Qd7 Re5 Bd8 Bf8 Qd6 Qb4 Bde7 Rc5
q2QQ1n1/2rB1K1P/1NB5/qq3R2/BR1B1nr1/5q2/1PQ3Nk/1b1nNR2 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bd6 f4 Bf8 fxe5 h5 g4 Nh6 gxh5 Ng8 Nh3 a6 Ng1 Bc5 Nc3 Bb6 Nb1 Ba7 b6 Qd7 bxa7 Qd8 Kf2 Ke7 Kg3 c5 Kf4 f5 Kg5 c4 Kg6 f4 e4 a5 h4 f3 d4 a4 d6+ Ke6 d7 a3 h6 f2 h5 c3 h7 a2 h6 c2 d5+ Ke7 e6 Kd6 e7 Ke5 e8Q+ Ne7+ Kf7 g5 d6 g4 Rh4 g3 Bh3 f1N Na3 g2 Be3 c1Q Qc2 Qa5 d8N Qce1 d7 Nc6 Ne6 Nd5 d8Q Qec3 Nf4+ Nce7 Bd7 Rg8 h8R Rg4 h7 Qc6 Rc1 a1Q Rf8 Qcb5 Bb6 Nfe3 Rf1 Rb8 a8B Nd1 Bac6 Rb7 Ba7 Rc7 Bd4+ Kd6 Nf3 g1Q Ng2 Ng8 Nfe1 Qh1 Bg1 Nf4 Bd4 Qd3 Ba4 Qdb5 e5+ Kd5 e6 Ba6 Bb6 Ke5 e7 Bc8 Bc6 Bf5 Bc5 Be4 Nc4+ Kf5 Nb6 Qa8 Qcd2 Bb1 Qc2+ Kg5 Bd7 Qh3 Bd4 Qhf3 Rh6 Qaa3 Rc6 Qab4 Rc4 Q4a5 Rb4 Rh4 Bc6 Kg4 Qed7+ Kg3 e8B Rg4 Q7e7 Qfd3 Bed7 Kh2 Qee8 Nh6+ Ke7 Qf3 Rf5 Ng8+ Kf7
1k1NR3/6PB/4qB1n/n3q1N1/QK1R1Nb1/QR2rr2/3n2QP/N2q2Bn b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 g5 f4 f5 a4 d5 cxd5 g4 axb5 Be6 e4 Bh6 exf5 Bg5 fxg5 Bc8 d4 Kd7 Kd2 a5 Kc3 e5 b4 c5 g6 Kc7 f6 a4 f7 e4 f8Q c4 d6+ Kb7 b6 e3 d5 a3 b5 g3 g7 a2 h6 e2 d7 e1Q+ Nd2 g2 h7 Qe4 d6 Ra6 Nh3 g1Q Kb4 Qeg6 Ng5 c3 Rb1 a1N Nb3 c2 Be3 c1N Bd3 Qde8 d8B Qd7 Bf6 Qc7 d7 Qf7 d8N+ Ka8 Qe7 Nd7 b7+ Kb8 Bed4 Qf1 Bg1 Re6 Qg4 Qf3 Qg2 Nh6 Bg6 Rf8 h8N Qd1 Bh7 Re3 Ng6 Ne2 Nf4 Nb6 Qd6 Ka7 b8R Ng3 Qd7 Nc4 b6+ Ka6 b7 Ka7 Qb5 Na5 Qa4 Bg4 Rc8 Qe5 b8Q+ Ka6 Qc7 Qfe6 Qc1 Ka7 Qca3 Rf7 Rc4 Kb8 Rd4 Rf8 Bf2 Rf7 Re1 Nh1 Bg1 Rf8 Nc5 N1b3 Re2 Nd2 Nb3 Rf7 Na1 Rc7 Rb3 Rcc3 Rd7 Rf3 Re4 Rfe3 Red4 Rf3 Re7 Rce3 Re8
1NB3Q1/P5nR/1r4B1/7R/rRb3b1/2NQnk1b/1r1P1B2/rNKBn1Q1 b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 a4 g4 a3 f6 Be6 f7+ Kd7 bxa3 Kd6 a4 Bc8 a5 Kd7 f4 g5 h4 Bh6 f5 Qf8 f6 Qg7 Ke2 Qg6 Ke1 Qf5 gxf5 g4 Nf3 Be3 Ng1 Bg5 hxg5 Ra7 Rh2 Ra6 Rh1 Ra8 f8Q Kd6 a4 Ke5 d6 Ke4 g6 b5 f7 c5 d7 e5 d8R h5 g7 h4 a6 c4 a5 h3 a7 g3 f6 g2 a6 c3 Rh2 b4 Bc4 b3 Ba3 b2 Ke2 c2 Bc5 c1R Ra5 Rc2 Bb3 Nc6 Qd6 Nb4 f8N Rh6 f7 Ne7 g8B Nbd5 Nd7 Ne3 f8Q N7f5 Bgf7 Ng7 Nb8 Bg4+ Ke1 Re6 Ne2 Kf3 Qd3 e4 Qg8 Rb6 Rh1 h2 Bg6 Bh3 Rd4 Bg4 Rb4 Bh3 Nbc3 b1B Ba4 Ba2 Nb1 Rb2 Nec3+ Kf4 Bd4 Bc4 Rh5 g1R+ Ke2 Rg4 Qg1 Rh4 Ke1 Kf3 Rh7 Rh5 Bd7 Ra5 Bc8 Ra4 Be5 Rc2 Bg3 Rca2 Bf2 Ra1 Nc6 Rab8 a8B Bg4 a7 R8b7 Rb5 Bh3 Rbh5 Rb2 Nb8 R7b6 Qg5 Bg4 Rf1 Bh3 Qg1 h1B Bc6 B1g2 Bd5 Bd7 Be6 Bh3 Bg4+ Kf4 Bd1 Bdg4 Qe6 Nef5 Qg8 e3 Bb3 Kf3 Kd1 Rba6 Kc1 Rb6 Qd4 e2 Bd1 Ne3 Qd3 Kf4 Qg2 e1N Rh1 Ne6 Qg1 Ng7 Rb5 Bh5 Rb4 B5g4 Bc2 Kf3 Bb3 Bg2 R1h5 B2h3 Bd1+
7n/R4PB1/Nr2Rq1Q/k2K1B1B/R2n1Q1n/2N1q1R1/n2n1rPQ/N3n3 b - - 0 1 legal: proof: e4 b5 c4 f5 a4 g5 axb5 d5 cxd5 g4 e5 g3 hxg3 Qd7 g4 Qd6 g5 Qd8 b6 Bg7 f3 Bf6 exf6 e5 Nh3 e4 Ba6 e3 Bf1 Ba6 Ng1 Bd3 Rh2 Be4 fxe4 Kf8 Rh1 Ke8 Ke2 Kd7 Kd3 c5 Kc4 h5 b4 a5 d4 h4 d6 Kc6 b5+ Kb7 d5 h3 g6 h2 g7 f4 e5 a4 d7 e2 d6 e1Q e6 a3 e7 a2 e8B f3 Bh6 f2 Nf3 Nc6 Qd4 Qc7 d8Q Nge7 g8R Rh7 d7 Qee5 Bh5 Qcd6 f7 Qe3 Qf4 Qf6 Ne1 Ng6 Kd5 c4 Bg7 c3 Bd3 f1N Bf5 c2 Qf8 c1N d8R Nh8 Re8 Nd4 Nc2 Nd2 Nc3 Rh6 Re6 Ra4 Rf1 h1N Rf3 Rb4 Rg3 Rb2 Q8d6 Rg6 Ra8 Rh6 Ra4 Rg6 Rb1 a1N Qh6 Na2 Qdf4 Nab3 Rc1 N2f3 Na1 Rf2 Rc2 Ne1 Ra7+ Kc8 b7+ Kd8 b8N Nd2 b6 Kc8 Rh3 Ng3 b7+ Kd8 Na6 Kd7 Bfg4 Ngf5 Rg3 Nh4 Bf5 Kd8 Rb2 Kd7 Rb4 Kd8 Ra4 Kd7 Nc5+ Kd8 Re5 Kc7 Na6+ Kb6 Re6+ Nc6 Rae4 Ka5 b8Q Nd4 Qb1 Nef3 Qh1 Ne1 Qh2 Qg5 R6e5 Rb6 Re8 Qf6 R8e6 Ne2 Rb4 Nd4 Ra4#
8/q3P3/3QN1Rq/N1B1q3/2P1QnK1/1Rp4R/1r1kB2N/rRbb1QBn b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 gxh5 Rh7 a4 Rh6 axb5 Rh8 b3 c5 c3 d5 c4 Qc7 cxd5 c4 Ra2 c3 Ra1 Qc4 bxc4 Bd6 Qc2 Ba3 Qd1 Bf8 Kf2 Kd7 Kf3 g5 d4 f5 h4 a5 e4 a4 h6 a3 h5 a2 d6 Ke6 d7 f4 d8Q Bd6 h7 Bf8 d5+ Kf7 e6+ Kg7 d6 Kh6 d7 Nf6 b6 Bd6 e7 Ba3 e8Q Nc6 b7 Nb4 b8R Nfd5 e5 Nd3 e6 Nf2 Be3 Bc1 Rh3 Nh1 Kg4 f3 Nd2 f2 Rb3 Nf4 Be2 f1Q Bc5 Qe1 Rab1 a1Q Ngf3 Qa6 Nh2 Qb6 Qde7 Ra1 d8N Bb7 Qd6 Bf3+ Kf5 Rg8 h8B g4 Bhd4 g3 Bg1 g2 e7+ Rg6 Ne6 Rg8 Qa8 Rb8 Qe4 Qa7 Ra3 Rb2 Rb3 Qg3 Qf1 Qh4 Bd3 Bd1 Be2 Qf6+ Kg4 Qe5 Rb8 Qa6 Nb3 Qa7 Na5 Qa6 Bgd4 g1Q+ Rg3 Qe3 Rb3 Qd2 Bg1 Qa7 Qed4 Kh7 h6 Kg6 h7 Qde3 Kh4+ Kf5 h8R Qd2 Rg6 Qde3 Qd2 Ke4 Kg4 Nd5 Rh3 Qh6 Qde1 Nf4 Qff2 Nd5 Bf3+ Kd3 Qff1+ Kc2 Qe4+ Kd2 Bcd4 Nf4 Bc5+ Qd4 Be2 Qd5 Nd4 Qe5 Ne6+
5n1R/Nq3BQn/qBr3NB/1r2R2Q/3Q3N/1Qq4b/1P1pP3/1K2k1Rn b - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 b4 gxf5 b3 axb3 g4 b4 Be7 b5 Bg5 hxg5 Qf6 Nf3 Qb6 Ng1 Qd8 Kd2 Kf7 c4 d5 Kc2 h5 b6 a5 g6+ Ke7 e6 Kf6 g7 Ke5 e7 Ke4 e8R+ Be6 f6 d4 b7 a4 f7 g3 f8N a3 c6 g2 c5 a2 c7 h4 c8Q h3 c6 h2 c7 Ra7 Qd7 Nc6 c8Q Qe7 b8B Rh5 Na3 Ra6 Nb5 Nf6 g8Q Bh3 Na7 Nd8 Bc7 Rb5 Qg7 Nh7 Bb6 Ne6 Nf3 g1Q Qc5 Qe3 Ng6 Nef8 Nfh4 Qg3 Bh6 d3+ Kc1 d2+ Kc2 Qf3 Bg2 Qe5 Rg1 h1N Rc1 Qe7 Qh5 a1Q Qd8 Qa3 Kb1 Qc3 Qb3 Qe6 Bd4 Rc6 Bb6 Qa5 Rc5 Qc3 Nf4 Ke3 Nfg6+ Kf2 Re5+ Rcc5 Qdd7 Qb7 Bd5 Qd6 Bf7 Qdc6 Rg2+ Ke1 Qd4 Qa6 Rc8 Qcb7 Ra8 Rc6 Rgg5 Nd7 Rh8 Ndf8 Rg1+
1B1bN1Bq/k2rRq1N/3qQ1P1/1K1R2Q1/1b1b4/1NBpP3/5nQ1/2n2BR1 b - - 0 1 legal: proof: d4 a5 g4 e5 a4 b5 axb5 f5 f4 c5 dxc5 g5 fxe5 f4 h3 Ra6 Bd2 Rf6 Bc1 Bb7 Na3 Rf5 Nb1 Bf3 gxf5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qc8 Rh6 Qc7 Rh1 Qd8 Kd2 d5 Kc3 Kd7 b4 Kc8 c6 h5 f6 a4 e6 g2 e3 h4 b6 f3 e7 h3 e8N a3 b5 f2 f7 a2 g5 d4+ Kc4 d3 g6 h2 c7 Kb7 c8Q+ Ka8 b7+ Ka7 b6+ Ka6 Qe6 Qg5 Qh5 Ba3 f8Q Rh7 Bd2 Qf6 Nf3 g1B Bc3 Bc1 Nbd2 Rf7 Ng5 Nc6 b8B Nh6 b7 Rd7 Nh7 Ng4 Qg5 Ba3 Nb3 Bb4 Rb1 Qh8 Qf3 a1B Qg2 Qe5 Rb2 Qd6 Ra2+ Kb6 Ra5 Nd4 Rd5 Bb2 Ba7+ Ka6 b8R Ne2 Rb7 Nc1 Bb8 Ba1 Bd2 Bd4 Bc3 Rd8 Re7 Rd7 Ba1 Kb7 Kb5 Ka8 c4 Kb7 Be2 f1Q c5 Bf2 Rg1 h1Q Bc3 Bh4 c6+ Ka8 c7 Qf7 c8B Nf2 Bf1 Qhh2 Ba6 Qhe5 Ka4 Qh8 Bc4 Kb7 Kb5 Ka8 Bc7 Ka7 Bb8+ Kb7 Qf4 Nh3 Rc5+ Qd5 Qef6 Qfg7 Rf7 Ne2 Bc7 Nf2 Q6e5 Bd8 Re7 Nc1 Qfg5 Ka7 Qef5 Qe4 Bg8 Qee5 Qe6 Qf7 Rd5 Qd6 Bb8+
2qn2NK/1q6/1PR1n3/8/p2R1QQP/k1nr1Q1N/rqNBBRN1/1b5B b - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 a4 a5 axb5 d5 c4 f4 cxd5 e6 e3 a4 exf4 Bc5 f5 Be3 Qg4 Bb6 Qd1 Ba5 bxa5 Qe7 Ke2 Qf6 Ke1 Qd8 Ke2 Ke7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 c5 f4 g5 h4 g4 h6 c4 f6 c3 f5 g3 a6 g2 a7 c2 d6 Qe7 f7 Ba6 f8Q Bc8 b6 Rh7 d7 Na6 d8R Qc5+ d5 Rb8 a8B Kb3 f6 Qa3 d6 Qa2 d7 Nc7 f7 Qa3 Qg4 Qe7 Be2 Rg7 h7 Nh6 Nh3 g1N Bd2 c1Q h8N Rg6 Ra2 Qb2+ Bc3 Rf6 Ng6 Rf2 Na3 Bb7 Nc2 Be4 Ngf4 Qc5+ Kf6 e5 Kg7 Ne6+ Kh8 Qc8 Bf1 Ne2 Bd2 Nc3 Ng2 Bh7 Bd3 e4 Be2 e3 Rc1 Be4 Qd6 Bd3 f8Q Nf7+ Kg8 Rb7 Qdf4 Rc7 Qff3 Rc6 Qh6 Rd6 Qhf4 Bf5 Be4 Rd3 Ba8 Nd6 Kh8 Nb7 Rf8 Bh7 d8N Bf5 Nc6 Nbd8 Ne7 Bg6 Bf1 e2 Ng8 e1Q Be2 Qh1 Rf5 Bh7 Rd5 Bg6 Rd4 Be4 Rf1 Bh7 Raa1 Bg6 Rac1 Ka2 Nce1 Ka3 Bc6 Bf5 Nc2+ Kb3 Nce3 Qb8 Ne1 Qa8 Q3e4 Qc2 Qeg2 Nb1 Ba5 Ka3 Bef3 Rc3 Bb5 Re2 Rf2 Qc8 Bfc6 Rd2 Be2 Qb3 Ba8 Ra2 Qb7 Qc2 Qc6 Rb3 Bd2 Qb2 Qc3 Qhc6 Qd3 Q6d7 Bh1 Qdb7 N3g2 Bh7 Qdf3 Re3 Rc7 Nc3 Rc5 Bb1 Rc6 Rd3 Nc2+
3Bn1B1/1q1b1QrP/RN4N1/RPrB3b/q1B1b1QK/3Rq2p/N6k/6Q1 b - - 0 1 legal: proof: d4 e5 f4 c5 fxe5 b5 dxc5 g5 a4 h5 axb5 h4 g3 g4 Ra3 Be7 Ra5 h3 Ra1 Bh4 gxh4 g3 Bh6 g2 Bf8 Nc6 Bh6 Nce7 Be3 Nf5 Bc1 Ng3 hxg3 Qb6 Na3 Qf6 Nb1 Qd8 Kf2 Ke7 b4 Ke6 c4 Kf5 e4+ Kg6 e6 a5 e7 d5 e8Q d4 c6 a4 c7 a3 e5 Kf5 g4+ Ke4 Kg3 f5 h5 d3 e6 a2 b6 d2 c5 Qg5 e7 Ra6 b7 Rf6 b8R Re6 c6 Qe3+ Nf3 g1Q+ Kh4 Kf4 g5 Bd7 c8N Rd6 c7 Nh6 g6 Rd5 b5 Be6 g7 Qe2 g8B Rc5 Nc3 Qe4 Ne5 Rh7 Bc4 Qb7 Nb6 Qe3 c8Q Bd7 Ra8 Nf7 h6 Rg7 h7 Nd6 Qf7 Ne8 Qg1 d1B Ra5 Bh5 Ng6+ Kf3 Ba3 f4 Rd1 a1Q Rd3 Qd1 Na2 Qa4 Bb2 Nd6 Bf6 Ne8 Qg4+ Kf2 Ra1 f3 Qd4 Kg2 Bg5 Nd6 e8B f2 Bd8 f1B Qg4+ Kh1 Qb8 Kh2 Qa7 Bg2 Ra6 Be6 Bc6 Be4 B6d5 Ne8 Nb4 Qb3 R1a5 Bd7 Na2 Qa4 Nc8 Rc7 Qd4 Rc5 Nb6 Rc7 Qa1 Rc5 Qag1+
B5r1/BkrR1Bp1/8/1qQ1NK1n/1R2R3/Q2N3n/1P1P1BQn/Nq3b1r b - - 0 1 illegal: Other
KR6/B1p2rQN/n2P2Q1/Nqrk2Qb/3P1r1r/2QB4/1R1r4/R3BN1b b - - 0 1 legal: proof: g4 d5 e4 g5 a4 f5 gxf5 b5 axb5 d4 h4 d3 f4 g4 f6 Bh6 cxd3 Bg5 hxg5 Nc6 d4 Kf7 d5 Nd4 Nh3 Nf5 exf5 Kf8 Ng1 Ke8 Ke2 Kd7 Kd3 Kd6 Kd4 a5 b4 h5 b6 h4 b5 g3 b7 h3 b8R g2 g6 a4 f7 h2 f8Q a3 g7 a2 f6 Qd7 f5 Ra7 b6 Rh7 b7 Nh6 g8Q Ra3 f7 Qe8 f6 Rb3 Bd3 Rh8 Nf3 g1R Qe1 Rg7 Na3 Qd7 Qd8 Rb5 f8Q Ng4 f7 Nf2 Kc4 Rg2 Qfg7 e5 f8N e4 Qdg5 e3 Nh7 e2 Rf1 h1B Nh2 Ne4 Rf2 Rg4 Nf1 Rf4 Qe8 Qf5 Qeg6+ Be6 Bb2 Rc5+ Kd4 Rf8 Bc3 Rf7 Qc1 e1R Nc4+ Kd7 d6 Kc6 Ba5 Re2 Qc3 Bd5 Bb4 Qd7 Rh2 Be6 Rf2 Bg4 Rg2 Bh5 Na5+ Kb6 Rh2 Qb5 Rf2 Rc6 Rg2 Nc5+ Kd5 Ref2 Rd8 Rh4 b8B R2f4 Ba7+ Ka6 Rc1 a1R Rb8 Ra2 Ra1 Rb2 Bb1 Ra2 d4 Rd2 Be4 Qb6 Bb1 Kb5 Bc2 Na6 Bd3+ Rc4 Qc1 Rc2 Be1 Ra2 Qe3 Rd2 Qh3 Kb4 Qhg3 Rc1 Qe3 Kc3 Qf3 Qb4 Kc6 Qc5+ Kb7 Qb5+ Ka8 Kb4 Q5f6 Rc5 Qfg5 Kc3 Bf5+ Kb4 Nb7 Kc4 Qc3+ Kd5 Na5 Rd3 Rb2 Rd2 Bd3+
7Q/R1q1Nr1P/K3p1PB/6q1/Q3Bn1r/NQB1NrBk/4n3/rb4RR b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 g5 f4 f5 a4 d5 cxd5 g4 axb5 Be6 e4 Bh6 exf5 Bg5 fxg5 Bc8 Ke2 Kd7 Kd3 a5 Kc4 c5 b4 g3 d4 a4 h4 a3 d6 e6 h6 a2 h7 g2 g6 Qb6 f6 Qc7 d5 Qc6 b6 Nh6 h5 Ng8 b7 Nh6 f7 Ng8 f8R Ra7 b5 Nh6 b6 Qc7 Kb5 c4 Qa4 c3 Bd3 c2 Na3 Qd8 Rf7+ Qe7 Ne2 g1Q Nc3 Nc6 b8B Qg4 b7 Nf5 h6 Ng3 Be4 Ne5 Nd1 Ne2 Ne3 Rf8 h8B Qg5 h7 Nd3 Bc3 Ndf4 Rb1 Kd8 d7 a1R B1d2 Qd6 Rbg1 c1R Rg7 Qde7 Bbe5 Qf7 b8Q Ke7 d8N Ba6+ Kb6 Bd3 Nc6+ Kd7 d6 Bb1 Kb5 Rf1 Qb6 Rf3 Ne7 Rc7 Qb8 Rc4 Qb7+ Kd8 Ka6 Rd4 Qbb3 Rc4 Nc8 Qc7 d7 Rf7 Ne7 Ng2 Bc2 Rh4 Bh2 Ngf4 Be4 Qce5 Rg2 Kc7 Rg3 Kd6 Rgg1 Qc5 Bc1 Qc7 d8Q+ Qd7 B3d2 Ke5 Qh8 Qc7 Be1 Kf6 Bed2 Qg4 Bc3+ Kg5 Rg8 Kh5 Ra8 Qf5 Ra7 Qg5 Ng2 Kg4 Be3 Nd5 Bef4 Kh3 Ne3 Qge5 Bg5 Ndf4 Bh6 Qg5 Bg3#
1Bb1K3/3PNN2/6Rn/3RNBr1/2qq1BQ1/b1q1Qrq1/2RpP3/3R1Q1k b - - 0 1 illegal: No possible last move, all moves rejected
2Q2RK1/2Rn1Bn1/R1N1Nr1p/P1b1P1b1/b2BBRQQ/b7/3k4/b5rN b - - 0 1 illegal: No proof kernel
4KQnn/8/N1kqQ1R1/B2P2Bn/2NRBr2/RPrq3N/Q3p3/2r2q1R b - - 0 1 illegal: No possible last move
1QB1RQ1n/1N1q1b2/3bkPR1/2n1p3/1P2Rb2/5BNq/1N1Q1Bn1/K1Nn4 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Nc4 f7+ Kd7 f6 Na5 axb3 Nc6 b4 Nb8 b5 Ba6 Nf3 Bb7 Ng1 Bc8 h3 a5 Qa4 g5 Qd1 h5 Qf3 Ra6 Qd1 Rc6 Nf3 Rc4 Ng1 Rf4 h4 Rf5 gxf5 g4 Rh2 Rh7 Rh3 Rg7 Rh1 Rg5 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 b4 c5 d4 e5 Kd2 h4 Kc2 c4 Kb2 a4 g6 g3 d6 g2 b6 h3 b7 h2 g7 Nc6 b8Q Nh6 g8B Ng4 d5 Be7 f8Q Ne3 f7 Bf6 Ne2 g1Q Qd2 Ne7 Ng3 Qf2 Na3 Nc6 Bg2 Qe8 Rg1 h1N Bf3 Be7 f6 c3+ Kb1 Qe1 Nc4 a3 Nb2 Nf2 Bh7 Nd8 Bf5+ Ne6 Ra2 c2+ Ka1 Nfd1 Rg2 Qh1 Rg1 Kd8 d7 Ng2 Re1 Qh2 Re4 Qh3 Qg5 Qh2 Nd3 Qg1 Qfg7 Nde3 f8N Nd1 Ne2 Nef4 Ng6 Qf1 Be3 c1B Qf8 Nh4 Kb1 Ne6 Ngf4 Qh3 Nh5 Nf4 Ba7 Be3 Nec1 Nfg6 Rg2 Nh8 Nb2 Bd2 Rg3 Ng2 Bf2 Bc5 Qgh6 Be7 Rg6 a2+ Ka1 Bc5 Ng3 Be7 Qe3 Bc5 Qc3 Bf4 Qd2 Be7 Qb5 Kc7 d8N Be6 Qb8+ Kd7 Nb7 Bc5 d6 Qc8 B5g4 Qd8 Nf5 Bf7 Ng3+ Kc6 d7 Bd6 Qe1 Kd5 Qe2 Qe7 d8R Qc7 Bc8 Qcd7 Qd2+ Ke6 Na4 Nde3 Kb2 a1N Ka2 Nb3 Nb2 Nc5 Ka1 Nd1 Re8+
2NbBNrr/1Q5Q/2b1QP1p/1rk1K3/qb3rN1/B7/5PNR/R3B1qR b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 f5 h4 f4 e4 Nd7 e5 Ngf6 exf6 Ne5 g3 g4 gxf4 Nf7 f5 Ng5 hxg5 Qd6 Ne2 Qd7 Ng1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 b4 a4 f7 a3 g6 e6 g7 a2 g8N g3 b6 g2 b7 c6 b8Q+ Qc7 b5 Bb7 f6 Be7 f8N Ra6 b6 Ra5 Nh6 Ra8 Bb5 Ra5 Qc8 Ba8 b7 Ra7 b8Q Rb7 Na3 Ra7 Qh5 Bd8 Nf3 g1Q Qbb7 Qd7 Ng4 Ra5 Ne1 c5+ Ke4 e5 d4 c4 Ng2 c3 Qf5 Qe7 Be8 c2 Bd2 c1B Be1 Qd7 Rh2 h6 Qh7 Rc5 Ba5 Bb6 Qa7 Qf1 Rb1 a1R Qca6 Bb7 Nc4+ Kc7 Nd6 Ra4 Nc8 Ba3 Ra1 Rac4 Bd2 Bb4 Qa8 B6a5 Qe6 Qd1 Kf5 Qa4 Bc1 Rb5 d6+ Kc6 Bd2 Bc3 d5+ Kc5 Rah1 Qd8 d7 Bc6 Qb7 Bcb4 d6 Bb6 N4e3 Rg4 Ra1 Rgg8 Ng4 e4 Rah1 e3 Bc1 e2 Ba3 Qc2+ Ke5 Qc1 Ne7 Qa8 d8B Qa4 d7 Qg1 Nc8 e1R+ Kf4 Rd1 Ke5 Rd4 Bc7 Rc4 d8R Rf4 Rd1 Ba5 Ra1 Bb6 Bb2 Ba3 Bc1 Ba7 Ba5 Bb6 Bb2 Bd8 Be1 Bb4 Ba3
B5Qr/P6Q/n2p1b1K/r1b1NPRR/3rbQ2/4b3/2N1k1NR/B1BrB3 b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Kd8 f7 Kc7 bxa3 Kc6 a4 Qc7 a5 Qd8 h4 Qb6 f5 Kc7 g5 Kd8 Ke2 Qf6 Ke1 Nc6 Be3 Nd4 Bc1 Ne6 gxf6 g5 Be3 g4 Bc1 Ng5 hxg5 Bh6 Bf4 Bg7 Bc1 Bf8 Kd2 Kc7 Ke3 Kc6 Kf4 b5 a4 h5 c4 h4 a6 h3 a5 e6 g6 e5+ Kg5 b4 a7 b3 g7 h2 a6 e4 Qd2 e3 Nf3 e2 Na3 e1B Nc2 b2 Bg2 b1R Ne5+ Kc7 c6 Kb6 c7 Kc5 Ra2 g3 Qf4 Be7 f8B Rab8 a8R Nh6 g8Q Bd2 a7 R1b7 Qh7 Rb4 Bg7 Bb7 c8N Ng4 Nb6 Be4 Nd5 Ne3 Kh6 R8b5 f7 Ra5 Rg8 Bf6 f8B+ d6 Be7 Rba4 Bf3 g2 Bd8 Nf1 Nde3 g1B Ng2 Ne3 Be7 Nd5 Bd8 Ra6 Ba5 Bde3 Be1 R6a5 Rb2 Nc7 Ra2 Bd3 Ba8 Be4 Rb2 Na6 Ra2 Kb6 c5+ Kb5 c6 Rd4 c7 Bgf2 c8Q Bg1 Nc6 Kc4 Qf8 Kd3 Ne5+ Ke2 Qf7 Bd8 Bf6 Bgf2 Rg5 Bg1 Bg7 Bf6 Qg8 Bgf2 Rf1 Bg1 Rf3 h1R+ Rh3 Rd1 Rhh5 Rh4 Ra3 Bc5 Rh3 Bge3 Ng6 Bd8 Ba1 Bf6 Rh2 Bd3 Qg3 Rd4 Qf4 Be4 Ne5
1rB2B1k/1N2Q3/K3b3/B2qpNN1/1Rp1P3/nP2QRb1/5Q1b/1R1r1Rn1 b - - 0 1 legal: proof: g4 g5 a4 h5 gxh5 f5 c4 b5 axb5 d5 cxd5 g4 h6 g3 fxg3 f4 gxf4 Be6 f5 Bc8 e4 Kf7 Ke2 a5 Kd3 e5 Kc4 c5 h4 a4 d4 a3 b6 a2 Kb5 c4 b7 Ra6 d6 Qf6 h5 Qe7 f6 Ra4 b3 Nc6 b8R Bf5 d7 Qe6 d8Q Qe8 h7 Ra3 h6 Bg4 d5 Be7 d6 Bh3 d7 Ra7 Qf3 Be6 Bd2 Ra3 Nh3 Kf8 f7 Ra7 Qe3 Bd6 Ba5 Bc5 Nd2 Nf6 Rb1 a1B Nf3 Bad4 Nh4 Ng4 Ng5 Nf2 Nf5 Nb4 Bh3 Nc2 Rhf1 Bc3 Qb6 Qd8 Bg4 Rc7 Ka6 Be1 Bh3 Rg8 h8R Na3 h7 Rb7 Bg4 Nh3 Qa7 Rc7 Rb4 Ng1 Rf3 Qa8 d8N Qd5 Nb7 Bg3 Rff1 Rd7 Qf2 Be7 Qae3 Bc5 Qff4 Bh2 Ne7 Kg7 Qef3 Re8 Rf8 Bf2 Q3e3 Bfg3 Qff2 Qd3 Bf5 Rb8 Bh3 Bd5 h8B+ Kh6 Bg7+ Kh5 Be6 Rdd8 Bc8 Be6 Rg8 Qd4 f8Q Qc5 Q8f6 Rd1 Rf8 Qd4 Rf7 Qd5 Bf8 Ne2 Nc6 Ng1 Qe7 Kg6 Rf4 Bf7 Rf3 Be6 Nf7 Kh7 Nd4 Kg8 Ng5 Kh8 Nf5
2r2R2/1K1B1nk1/Q4R1p/1QN2Q1N/1B4R1/1p4Nn/PPB3n1/Nb1b1qb1 b - - 0 1 illegal: No possible last move
1K2B2Q/3rRbQ1/3P2p1/8/q1pBNn1q/2R1q1R1/NPNrQ2B/1k2b2B b - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 h5 exf5 Ra7 g4 Ra8 gxh5 Na6 bxa6 Rh6 Qb3 Rh7 Qd1 Rh8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 c5 f4 a4 h4 a3 f6 g6 a7 e6 d6 a2 d5 Qb6 f7 Rh7 h6 Ba6 f5 Bb5 f6 Be8 d7 Rc8 a8B Rc6 d8R Qa5 h5 Rg7 h7 Ne7 h8B Qa6 h6 Qb6 h7 Rc8 Na3 Bb5 Ne2 Rb8 Bf4 Nf5 Nc2+ Kb3 Rh3+ Ng3 Nc3 Ba6 Bb5 c4 Re8 Ne2 Bh2 Bb7 Re7 Bc6 Kd6 e5 Rg3 e4 Rc1 a1Q Na2+ Qe3 Kc7 Nf4 Qe2 Rd8 Bb7 Rd6 Kb8 Be8 Ba8 Rd7 Bac6 Rg8 Bb7 Bh6 f8N Bf7 B7c6 Rg7 Ne6 Bg5 Bb7 Bh4 Ng5 Rd6 Be8 Rd7 Nab4 Qa4 Na2 Rg8 Bg7 Rf8 h8Q Rg8 Rh3 Be1 d6 Rf8 Qh7 Rh8 Qg8 Rh4 Qh8 Rg4 Rf3 Rg2 Rg3 Rf2 Qd1 Rd2 Qe2 Qc3 Bc6 e3 Bh1 Qd4 Ne4 Qc3 Qf2 e2 Qg2 Qe3 Qf1 Be6 f7 Bd5 f8Q Bf7 Nab4 Nd3 Bd4 Nf4 Nd5 Ka2 Qfg7 Bf2 Qd1 e1Q Qe2 Nh5 Na3 Nf4 Rc3 Ka1 Nc2+ Kb1 Rh3 Bh4 Ndb4 Q1g3 Na2 Qg5 Bg1 Be1 Rg3 Qh4 Bh2
b7/2NB4/1B1pB3/1qbQRn2/k1pn3N/2P2N1P/K2Q1R2/R1RQbq1r b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 e5 exf5 b5 d4 Nc6 dxe5 Rh7 a4 Nb8 axb5 a4 Bh3 Ra7 Bf1 Ra5 bxa5 Rh8 Kd2 c5 Kc3 g5 Kb2 c4 f4 a3+ Ka2 d6 a6 Kd7 b6 Kc6 f6 Kb5 f5 g4 c3 g3 b7 g2 a7 Nc6 b8Q+ Ka5 a8N Rh6 e6 Bd7 f7 Rh8 h6 Qb6 h7 Nce7 f6 Kb5 Nf3 g1B Nh4 Nc6 e7 Bc5 e8B Nd8 Be3 Nb7 Nc7+ Ka5 Bh3 Bc6 Nd2 Be4 Ndf3 Bc6 Be6 Be7 f8Q Nd8 f7 Nh6 Qb7 Nf5 B8d7 Qb5 Qh6 Bg5 Bg1 Bd2 f8R Be1 Qhd2 Be4 Qbd5 Nc6 Rc1 Ncd4 Rf6 Rg8 Be3 Rg1 h8R Rf1 h3 Rg1 Qe5 Ba8 Rh5 Rf1 Qd5 Rg1 Rh2 Rf1 Rf2 Rh1 Ka1 a2 Rg5 Ng3 Re5 Ngf5 Rg6 Nb3+ Kb2 Ka4 Rg1 a1Q+ Kc2 Bb4 Bb6 Bc5 Rgf1 Qa3 Kb1 Qb4 Rc2 Nbd4+ Ka2 Qa5 Rg1 Qa6 Rgf1 Qc8 Rg1 Qf8 Rc1+ Nc2 Ra1 Qg7 Rc1 Qg2 Q1e2 Ncd4 Rgf1 Qg1 Ra1 Qg2 Qdd3 Bd2 Rfc1 Be1 Qdd2 Qf1 Qed1+
1B3Qn1/5Bbp/N4kPR/1p1P2R1/1b2n1N1/1q2QB1Q/qRrnN2K/4B3 b - - 0 1 legal: proof: g4 a5 b4 b5 bxa5 f5 c4 d5 cxd5 g5 f4 Bb7 e4 Na6 exf5 Nh6 f6 Nb8 f7+ Kd7 f5 Bc8 h3 Ng8 f6 Kd6 Qa4 Bf5 Qc2 Kd7 gxf5 g4 Qd1 g3 Be2 Ra6 Bf1 Rc6 Bd3 Rc4 Bf1 Rg4 hxg4 Qe8 Nc3 Qc8 Nb1 Qd8 a4 e5 d4 c5 d6 e4 g5 e3 g6 c4 a6 g2 a5 e2 Kf2 e1N Kg3 c3 a7 c2 a8N Qc7 a6 Qa7 Nd2 Ne7 Qg4 Qc7 a7 Qb7 Ndf3 Nd3 Qh3 Nc8 Rb1 Qc6 Kh2 Nf4 Ne2 Nb6 Nc7 Qd5 a8B Qc5 Bd2 c1B Na6 Be7 f8R Bb2 f7 Bh4 f6+ Ne6 Be1 Nc4 Re8 Bc3 f8B Qb4 f7 Qb3 Rb2 Nc6 Bg7 Bb4 f8Q Ne7 Be5 Bf2 Qfh6 Qa2 Qe3 Nd2 Rf8 Rg8 Rf5 Rc8 Rg5 Rc2 Bc6+ Kd8 d7 Ng8 Bb8 Ke7 Ne5 Nc5 Bf3 Nce4 Ng4 Ke6 d8Q Bg3+ Kg1 Be5 Qf8 Bg7 Kh2 Qb3 Nc3 Qa2 Bd3 Qb3 Ne2 Qa2 Qc8+ Ke7 Bc4 Qb3 Bf7 Qa2 d5 Qb3 Qg3 g1Q+ Kh3 Qf1+ Kh2 Qa2 Qh3 Qb3 Nf2 Kf6 Qf8 Qa2 Rh5 Qb3 Rh6 Qa2 Rg1 Qb3 Rg5 Qa2 Nd4 Qd3 Ne2 Qdb3 Ng4#
R1r3R1/rB1kP2Q/7N/B2n2nQ/1RbK2P1/pB2rN1N/Q4Qrp/6q1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 c4 g5 a4 d5 axb5 f5 cxd5 g4 Ra2 f4 Ra1 Bg7 g3 Bf6 gxf4 g3 f5 g2 Ra5 Bg5 Ra6 Bf4 Ra1 Bg3+ hxg3 Qg5 Ra3 Qh4 Ra1 Qd8 Kf2 c5 Ke3 a5 d4 h5 b4 h4 f6 h3 f7+ Ke7 f8Q+ Kd7 e6+ Kc7 b6+ Kb7 d6 Kc6 e7 c4 e8B+ Nd7 b5+ Kb7 d5 a4 Kd4 c3 e4 c2 e5 h2 e6 Ra6 e7 Rh6 Bc4 Nc5 d7 Ra8 d6 Rh3 Bd2 c1R Qh5 Ra5 g4 Ra6 Qf2 Ra3 Nh3 g1R Ba5 Rgf1 Bb3 Rc2 Nd2 Nf6 Nf3 Kb8 b7 Qb6 d8Q Rcc1 d7 Ka7 b8R Rc3 Qa2 Rf2 Rhb1 Rcc2 Bef7 Rg2 Qdh8 Rc3 d8N Nd5 Q8h7 Be6 Bg6 Rc1 Nf7 Rcc2 Rh8 Kb7 Be4 Kc7 Nh6 Ra7 Rg8 Kd7 Rb2 Rc3 Rbb1 Re3 Rb2 Rc7 Rbb1 Qa7 b6 Rc8 b7 Bf7 b8Q Ne6+ Ke5 Qc5 Qb6 Ng5 Qf6 Qc1 Kd4 Qg1 Rb2 Nf4 Bb7 Bc4 Rbb1 Nd5 Qf4 Re6+ Qe3 Ra6 Qef2 Ra7 Bc2 Re3 Rb4 Ba6 Bb3 a3 Rc1 Bd3 Rc5 Bc4 Rc6 Rf8 Rc8 Rd8 Rb8 Rc8 Ra8
NqkB4/3q4/2R2p1n/5Qrn/3R1BPQ/R1KR3p/B1nQ3P/1q2N1bN b - - 0 1 legal: proof: d4 c5 b4 b5 bxc5 a5 g4 e5 dxe5 b4 g5 b3 g6 f6 axb3 Qb6 b4 Qd8 b5 Ra7 f3 Ke7 Qd4 Bb7 Qe3 Bd5 Qd3 Bf7 gxf7 g5 Qg6 g4 Qh6 g3 Qd2 Ra6 Qd1 Rd6 Bg2 Rd4 Bf1 Rg4 fxg4 Bh6 Nd2 Bg7 Nb1 Bf8 Kd2 h5 c4 d5 e4 Kd7 e6+ Kc8 e7 d4 e8Q a4 b6 a3 c6 g2 c5 a2 c7 h4 e5 h3 e6 d3 e7 Rh6 Nc3 Rh5 Nf3 g1N Ne4 Ne2 Nf2 Kb7 c8Q+ Ka8 c6 Nf4 b7+ Ka7 c7 Bg7 f8B Rf5 Qh5 Qd7 e8N Ra5 Qh4 Qf5 Be7 Nh6 Bd8 Na6 b8R Qe4 Rb3 Rg5 Qf5 Nb4 c8R Kb7 Rc6 Nh5 Nc7 Bf8 Na8 Bc5 Rg1 Qe5 Nh1 Qc7 Rg3 Qd7 Ne1 Bg1 Ra3 Kb8 Kc3 d2 Qdc2 d1Q Bf4+ Q1d6 Rd1 a1Q+ Qb2 Qb1 Bc4 Q6c7 Rd4 Kc8 Qd2 Nc2 Bg8 Kb7 Ba2 Qb8 Re6 Kc8 Rgd3 Q8b7 Rb6 Qb8 Rc6+
R1rB3K/2P1qBP1/1r3Q2/2R3Q1/1q1Qr3/QN1pB1n1/Rp4k1/q3bNN1 b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Qc7 f7+ Kd8 f5 Qb6 bxa3 Kc7 a4 Kc6 a5 Qd8 h4 b6 f6 Ba6 Bh3 Bd3 Bf1 Bf5 gxf5 Qc7 Qg4 Qc8 Qd1 Qd8 Be3 g5 Be2 g4 Bc1 Na6 Bd3 Nc7 Be2 Ne6 Bf1 Ng5 hxg5 Qb8 Kd2 Qe8 Ke1 Qd8 Ke2 h5 Ke3 d5 Kf4 h4 Ke5 d4 c4 g3 a4 h3 a6 h2 g6 g2 a7 e6 a5 b5 a6 b4 Ra2 b3 Nd2 Rb8 a8Q+ Rb7 a7 Be7 f8N b2 f7 Qb6 f6 Qd8 Nd7 Qa5 f8B Qb6 f7 Bg5 Be7 Rh7 f8Q Nh6 Bd8 Qb4 Qf6 Re7 Qg4 Be3 Qgg5 Bf2 Be2 d3 Bh5 Re8 Nf1 Nf5 Be3 Ng3 g7 Re7 Bf7 Be1 Kf4 Re8 Qd4 Rf8 Ke5 Re8 Kf6 e5 Kg6 e4 Kh7 Re6 Kh8 Re5 Qb8 Rb6 a8R Re7 Qa7 Re6 Nf3 g1R Qa3 Rg2 Rg1 Rc2 Rg2 Re5 Ng1 h1Q+ Rh2 Re6 Rh5 Qh4 Bd2 e3 Bc1 e2 Be3 Rb8 Qgf6 Rc3 Qg5 Re4 Qdf6+ Kb7 c6+ Kc8 c5 Re6 Qge5 Bf2 Bg6 e1Q Qf3 Qe7 Bf7 Qa1 Qff6 Be1 Rf5 Qa5 Qg5 Qb4 Qef6 Rc2 Ne5 Rc4 Nef3 Rg4 Nd4 Rd6 c7 Kd7 Nb3 Re6 c6+ Kd6 c8Q Rf4 Qb7 Rc8 Qh4 Rd4 Rf2 Kd5 Qhg5+ Ke4 Qd7 Red6 c7 Rb6 Rf5 Rc4 Ne2 Rd4 Rc5 Rc4 Qfe5+ Kf3 Qef6+ Kg2 Ng1 Re4 Qdd4
kNq3r1/B3p3/N2q1PR1/r5QN/2P1Q3/1b3prB/1K1RRb2/BbB2Q2 b - - 0 1 legal: proof: d4 b5 g4 g5 a4 f5 axb5 c5 dxc5 h5 f3 f4 e3 Nh6 e4 Nf5 exf5 Nc6 gxh5 g4 Qd5 g3 Qd3 Ne5 Qd1 Ng4 fxg4 Rh7 Qf3 Rh6 Qd1 Rh8 Kd2 a5 Kc3 d5 h4 Kd7 b4 Kc7 c6 Kb8 b6 f3 c7+ Kb7 g5 g2 b5 d4+ Kb2 a4 c4 d3 h6 d2 h7 Qd4+ Nc3 Rg8 h8B Bg7 g6 Qd6 h5 Ra7 h6 Qd5 h7 Ra6 Nh3 g1R Rh2 Qc5 Re2 Rf8 Nf4 Qd5 Bh3 Qe5 Qf1 d1B Nh5 Qh2 Ra2 Be5 g7 Qf4 g8R Bc2 Rg6 Bd6 Ne4 Bd1 Nc5+ Ka8 b7+ Ka7 b8N Ra5 b6+ Ka8 Bc3 Rg3 h8Q Bb3 f6 Bf5 c8Q Bb1 Nca6 Rg8 Qg7 Bc5 Qg4 Qd6 Be5 Bf2 Qe4+ Qd5 Qh6 Qb7 Qg5 a3+ Ka1 Qc6 Rad2 a2 b7+ Ka7 Ba3 Qd6 Kb2 a1Q+ Kc1 Qa2 Ba1 Re8 B3b2 Qa4 Ba3 Qac6 Kb2 Rf8 Nd7 Re8 b8B+ Ka8 Ba7 Rg8 Ndb8 Qb7 Kc3 Qbc6 Bc1 Qb7 Kb2 Qbc6 Qd3 Qc8 Qe4+
2bnR1b1/N2NR2P/1r1N1Rn1/k3pQ2/5bP1/BBp1n3/4NK1Q/Q5nB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 h4 c4 Bd7 cxd5 Bc8 h3 g5 Qe2 b5 Qf3 Rh5 Qd1 Qd6 Qb3 Qb4 gxh5 g4 Qc2 g3 Qd1 Qg4 hxg4 Ra6 Bb2 Rh6 Bc1 Rh8 f4 Kd8 d4 c5 a4 Kc7 a6 Kb6 h6 e5 a5+ Ka7 d6 h3 h7 g2 d5 c4 d7 c3 d8R h2 f6 b4 d6 b3 f5 b2 d7 Ba3 f7 Bb4 f8N Nf6 Bc4 Nd5 f6 Bc5 f7 Nc6 Bb3 Rg8 Ne2 g1N Re8 Nd4 d8N Ba3 Nc6+ Ka8 a7 Kb7 a8Q+ Kc7 a6 Kb6 a7 Bd7 Qc2 Bc8 Kf2 Ne3 Nd2 b1B Ne4 Ba2 Nd6 Ne6 Nd7+ Ka6 f8Q Rg6 Rb1 Nd8 Qff5 Bc5 Ba3 Bd4 Ba4 Bg8 Rb7 Rh6 Bb3 Bb6 Ncd4 Ka5 N4b5 Rg6 Qb8 Re6 a8B Rg6 Na7 Bd4 Ndb5 Rb6 Qa2 Bc5 Qa1 Be7 Rc7 Bg5 Nd6 Bf4 Bg2 Nd5 Qb7 Ne7 Qbe4 Ng6 Qc2 Nf3 Rf1 Ng1 Bf3 h1N+ Ke1 Nf2 Bh1 Nd1 Qca2 Ne3 Kf2 Bh2 Qd2 Nc2 Qh6 Bf4 Qh2 Bf7 Nf8 Bd5 Rce7 Ne3 Nd7 Be6 Rd1 Bg8 Rd3 Nd5 Rh3 Ne3 Rh6 Nh4 Rhe6 Ng6 Rf6
1RNKnQQ1/6r1/2B1N2n/2bR3q/bBB1p3/P1k2rP1/1ppR1Q2/N6B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 c5 Kf4 b5 Ke5 h5 d4 b4 f4 b3 f6 b2 g6+ Ke8 f5 Kd7 g7 e6 d6 Kc6 a6 h4 d7 c4 a3 Kb5 f7 h3 a7 h2 g3 Qe8 d8R Qc6 f6 Na6 d5 Nb8 d6 Ka5 d7 c3 Ne2 c2 Nbc3 Qb6 Na4 Ne7 g8B Qc6 Bd2+ Kb5 Nb6 Kc5 Qe1 Rh4 Nd4 Na6 Bc4 Bh6 f8Q Rb8 a8B Rb7 f7 Bf4+ Kf6 Rg4 Rd1 Be3 Ba5 Qa4 Qf2 e5 Rd2 Nc7 Rhd1 h1Q Bd5 Qc4 Bc6 Qb4 Qe8 Rb8 f8Q Qh5 Bc4 Rg7 Qg6 Bb7 Nc8 Ne8+ Ke6 Ba6 Qgf7 Bb5 Q7g8 Rb7 Bh1 e4 Nb3+ Kc6 Rd5 Nf5 Na1 Nh6 R1d3 Ba4 Rd2 Nd6 Kf6 Bc5 Re8 Rf7+ Ke6 Rf3 Ke7 Ndf5+ Kd8 Ng7 Be2 Rd3 Bf1 Kb5 Be2 Rc7 Bc6+ Kc4 Bf1 Kc3 Be2 Rd4 Bc4 Rd3 Re7 Bd6 Rf7 Ne6+ Ke8 Rb7 d8N Nc7+ Kd7 Bc5 Ne6 Rf3 Kd8 Ne8 Rg7 Ra7 Rb7 Bb5 Rb6 Rg7 Rb8 Ba4 Bxb4+
1R3Q2/NNrr1q2/n6P/bK5B/npNpk1p1/3R4/4RPB1/1rNQBQ2 b - - 0 1 illegal: No possible last move
1bK3N1/3rQ2R/1Pb3r1/pnRQ3r/3RBN1B/N2p2QB/p1P5/kQq5 b - - 0 1 illegal: Other
B3R1Rn/K1pQN3/Q2p3Q/B1R3bB/1k2qP2/r1p1PrN1/3Rb3/3bN3 b - - 0 1 illegal: Other
nK1N1B2/QQ3BR1/b1pr3P/2Q3Np/kN2R3/R1q3nR/1Pp3r1/1q4B1 b - - 0 1 illegal: Other
1bQR2R1/3b1rP1/1p5B/r2knQ1R/PK1pN1N1/BQ6/2p1N3/n1N3nB b - - 0 1 legal: proof: c4 a5 h4 f5 e4 g5 hxg5 e5 exf5 a4 d4 a3 dxe5 b6 c5 Bd6 c6 Bc5 bxa3 Bf8 a4 Qf6 a5 Qe6 Qe2 Qc4 Qf3 Qa6 Qd1 Qb7 cxb7 Ba3 Qf3 Bc5 Qd1 Bf8 Kd2 Kf7 Kc3 h5 g4 c5 a4 d5 f4 c4 g6+ Ke7 g7 d4+ Kb4 c3 a6 h4 a7 h3 g5 h2 e6 Kd6 f6 Ne7 g8N Ng6 f5 Kc6+ e7 Be6 f7 Rh3 f6 Rf3 Nd2 Nh4 g6 Re3 Nb3 Nf5 Nh6 Rf3 Ba3 Ne3 Ne2 Rg3 Ng4 Bc4 Nbc1 Rg1 Bg2+ Kd6 Qb3 Nd7 b8R Be6 Rd8 Rf1 Be4 Bh6 f8B Bf4 f7 Bf5 Rg1 h1N Bh6 Nf2 f8Q Nh3 Bh1 Be5 Rg2 Ng1 e8N+ Kc6 Nef6 Bb8 Ne4 Ne5 Rh2 Bd7 Rh5 Rf7 g7 Re7 Qf5 Rf7 Qb1 Kd5 Ra2 Nf1 Rc2 Nd2 Qb2 Nb3 Qa2 Bc7 Qb2 Na1 Rg8 Rb8 a8Q+ Rb7 Qc8 Ra7 Rd2 c2 Qb3+ Kc6 Rd3 Ra8 Re3 Ra5 Nc5+ Kd6 Re4 Bb8 Rd8 Nc4 Ree8 Ne5 Rg8 Nc4 Qh3 Ne5 Ne4+ Kd5 Qb3+
1Qn1Q2R/1pN3B1/1pnBn3/2R2KN1/3Pr1Bb/2p2B2/k1P2Q2/1NRr2b1 b - - 0 1 illegal: Other
4BK2/Q2r2N1/R2pQRNB/1rk2P2/QNb1q3/3qp1Pn/r1Q1p3/5R1B b - - 0 1 illegal: Other
bR1BN1k1/N1Bq1brN/Q1R5/r2q3p/Q1p1PN1p/3B1Q2/3KR2P/4r3 b - - 0 1 illegal: Other
2NB2QN/np1B3K/R6Q/qRB4n/kN2p3/3PP1rQ/4pRq1/nN4n1 b - - 0 1 illegal: Other
1BNB3K/Q1N3BP/4p2R/2q1pr2/3Q1nRP/1bN2Bn1/p2p1R2/kbQ5 b - - 0 1 illegal: Other
N4RqB/1pB1Qb1B/n4Q1p/R3Q1b1/P2N2P1/4r2r/1RNp3p/K4N1k b - - 0 1 illegal: Other
3k3K/1qR1Q2n/1NRNpQN1/2B1n3/1Ppp3b/QB2P1R1/1pr1RBn1/8 b - - 0 1 illegal: No possible last move, all moves rejected
NQ4R1/2n2B1n/R1q2Rqr/K2bB2R/1N2Nb2/k3PBq1/Q3Q1P1/3r2rb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Ke7 Kd2 f5 Kc3 h5 Kb4 f4 b6 c5+ Ka5 h4 b4 c4 b5 f3 d6+ Kd7 g6 f2 e6+ Ke8 g7 a6 d7+ Ke7 e3 Kd6 d5 Kc5 e7 h3 e8N h2 d6 c3 Na3 c2 Nc7 Qg5 d8R Rh5 b7 Qg3 d7 Nf6 g8B Rh6 b6 Nh7 Nf3 Bd6 Bb2 c1Q Qe2 Bf4 Nc2 Qb1 Nb4 Qbg6 Bf7 Qc6 Rg1 h1B Rh8 Qcg6 d8Q Be6 Bc3 Bd5 Qg8 Qc6 Be5 Qcg6 Ka4 a5 Ng5 Na6 b8Q Ra7 Na8 Rd7 b7 Nc7 Qf3 Rd8 Be2 f1Q Ra2 Qa1 Rf1 Qc1 Qf2 Qc4 Bf3 Qca6 Qe2 Qc4 Ka3 a4 Ne4+ Kb5 Qc8 Ka5 b8R Qcc6 Qb7 Bc4 Rc8 Rd1 Qb8 Bb3 Qe8 Bc4 Qe6 Bd5 Rcg8 Qa6 Kb2 a3+ Kc3 Ka4 Ra1 a2 Rf2 Nf8 Rf1 Ka3 Rh7 Rh3 Rh5 Nh7 Rf2 Qb7 Rf1 Bc6 Kc4 Bd5+ Kc5 Qc8 Kb6 Qd7 Ka5 Qc6 Rc1 a1R Rc4 Qb7 Rc6 Rac1 Rb6 Qc6 Ra6 Ra1 Rf2 Rg1 Rf1 Rd1 Rf5 Bh6 Bh5 Bc4 R1f4 Bg5 Bf3 Rh6 Rh4 Ba2 Rh5 Bf4 Rf6 Bb3 Qd5 Bc4 Qdd2 Bd5 Qa2+
1Qb1rB1B/1N1r2bR/8/3NrqkB/K2RBRnq/4PQ2/1PQ3qN/4bn2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 d4 f5 Kd2 a5 Kc3 g5 Kb3 c5 e6 Kf6 d6 g4 e7 c4+ Ka4 g3 e8B g2 d7 c3 b6 f4 b7 c2 h6 f3 d5 f2 d6 Nc6 b8Q Nd4 h7 Nf3 h5 Kf5 h6 Kg4 Nc3 Nh2 Nf3 g1Q Nd5 Ra7 Bg2 Qh4 d8R f1Q d7 Bg7 Bh5+ Kf5+ Bf4 c1B e3 Bd2 Qc2+ Qd3 Rd1 Be1 Rf8+ Nf6 d8N Nf1 Nh2 Rd7 Nb7 Rg8 Rf7 Re8 h8B Re5 Bgf3 Qg2 h7 Qe4+ Rd4 Qd3 Bg3 Kg5 Rf8 Qf5 Be4 Ng4 Rf7 Re8 Bd6 Re5 Bf8 Re8 Kb5 a4 Qg3 a3 Ka4 a2 Qf3 Qe6 Rf4 Qf5 Ka3 a1R+ Kb3 Rc1 Ka4 Bh6 Bhg7 Rd1 h8Q Rde7 Qg8 Re5 Bh8+ Bg7 Qe6 Rd3 Qd6 Rc3 Qb8 Rc7 Rg1 Qgh3 Rg3 Qg2 Rh3 Rd7 Bf7 Qhg3 Rh7 Qh4 Bh5
bN2q2N/1k1N3K/3BR1B1/4Q1RR/Qnq1r3/Pq1BN1b1/1P2Qrn1/b4r2 b - - 0 1 illegal: No proof kernel
N1rb2KQ/4r3/3BQbnq/1P5b/B2rR3/1nn2QB1/RR1qN1Pk/NQ6 b - - 0 1 illegal: No possible last move, all moves rejected
Bn1k4/1n1nbN1B/P7/3qQr2/2P1B3/QR3b1r/qbNR2QB/1rN3RK b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 c4 e5 f4 d5 Kf2 b5 Kg2 g5 a4 d4 h4 d3 f6 d2 f7+ Kd7 c6+ Kc7 f5 b4 h6 g4 f6 g3 h7 e4 a6 b3 a5 e3 a7 b2 h5 e2 h6 e1R a6 Bb7 Ra2 Qd4 Qc2 d1Q Ne2 Qg4 Na3 b1N Rg1 Kd8 Bf4 Ne7 Kh1 Qg8 Nc1 Qdg4 Qg2 Rd1 Bd3 Nc8 Be4 Nd2 Nc2 Nb3 Be5 Nc5 c7+ Kd7 Rb2 Qe2 Rb3 Nd6 c8B+ Kd8 Bcf5 Ncd7 Bg6 Be7 f8R+ Kc7 Re8 Qd5 f7 Rf1 f8Q Rf5 Rd8 Qf2 Nb4 Qa2 Nc2 Bc6 Bf6 Nb7 Bg5 Rg8 h8N Rg7 Nf7 Rh7 Qf3 Rh8 h7 g2+ Kh2 Rg8 h8Q Rg7 Qfh3 Rh7 Qb2 Rh5 Bh7 Rh6 Qa3 Rh5 Qg7 Rh4 Rf1 g1B+ Kh1 Bd4 Rg1 Bb2 Bf6 Ndc5 Rd6 Ncd7 Be5 Rh6 Bh2 Rhh5 Nh8 Kd8 Qhg2 Rh3 Qe5 Qf7 Bd3 Bf3 Rd4 Qd5 Be4 Nc6 Rdd1 Rc8 a8B Ncb8 Rdd3 Rc5 Rd2 Rb5 Re3 Ba1 Red3 Rb1 Rb3 Bb2 Nf7+
1kqN3R/1r1qr1P1/P1B3b1/8/2r2R1Q/1R1nBN2/K1QbnN1R/bB2Q1q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 c5 Kc3 Kc7 Kb2 b5 f4 e5 a4 h5 g4 c4 a6 e4 g6 h4 a7 e3 g7 e2 f6 e1Q g5 b4 d6+ Kb7 d5 b3 g6 h3 f5 h2 f7 Nh6 g8R Qc7 g7 Qb4 a5 Qcc5 d7 Be7 d8Q Nd7 f8Q Bf6+ Nc3 Qbb5 d6 Ne5 Qc2 Qd7 Ne4 c3+ Kb1 b2 Ka2 b1R Qfe8 Rb6 Nf2 Nd3 Rb1 Bd4 f6 Nf5 f7 Ng3 f8R Rh4 Nf3 Ne2 Be3 Qc4+ Qb3 c2 Rf4 c1B Rh8 Ba1 Qee7 Qa6 Qc2 Bd2 Rb3 Rb8 a8B+ Ka7 Ne4 Rb7 Nf2 Kb8 Qde8 Ra7 Bc6 Rbb7 Bg2 Qc4 a6 Rg4 Qh4 Qg8 Rb1 h1Q Rb2 Qg1 Bh3 Qdf7 Qee7 Bf5 d7 Qc8 d8N Bg6 Qb4 Qfd7 Qbc3 Bc1 Qe1 Bd2 Bf1 Rg5 Bh3 Rc5 Bf5 Rc4 Qcc1 Ne5 Bb1 Nd3 Qc2 Rb5 Rb4 Rab7 R2b3 Re5 Rb5 Re7 Rg5 Ne5 Rg2 Nd3 Rh2
3Q1B2/b3bP2/1Bn2NQK/qn1R1r2/4r2k/1RNB1P2/1r1R1qqQ/3N2Rb b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 a5 h4 e6 b4 a4 d6 g6 b6 a3 f3 c4 b5 c3 d5 c2 b7 a2 d7 Ra6 b6 Be7 h6 Ra7 d6 Ra8 h5 Ra7 h7 Ra5 h6 Na6 b8N Nc7 b7 Nb5 Bd3 Qb6 d8Q Qf2 Be3 c1B d7 e5+ Kg4 g5 Kh5 g4 Qc2 g3 Ne2 e4 Bb6 g2 Rh2 g1Q Nec3 e3 Nd1 e2 Nbc3 e1R Qb1 Qfg3 Rd2 Q1f2 Qc2 Qgg2 Rb1 Ke5 f6 Kf4 f7 Kg3 Rb3 a1Q Qb1 Nf6+ Kg5 Rf8 h8R Re4 h7 Nd5+ Kh6 Kh4 Rg8 Nb4 h8B Nc6 Bg7 Ba3 Qc2 Bc5 Qb1 Re8 Bf8 Ra2 Rg5 Rb2 Rd5 Qa6 Qc7 Qa8 d8Q Qa5 Qh2+ Bh3 Nd7 Re5 b8R Rf5 Nf6 Bd4 Bc7 Ba7 Rc8 Bec5 Bb6 Re4 Rc7 Be7 Rcd7 Rff4 Rg5 Rf5 Rd5 Qgg3 Qg1 Bg2 Qh2+ Qh3 Rg3 Bh1 Rg1 Nc7 Qg2 Nb5 Qg6 Qhg2 Qa2 Qa6 Qa3 Qa4 Qad6 Qa5 Qh2+
2R2R2/BP4q1/PN2nqQ1/NQ2BqQB/3r1bN1/Kn1rr2k/b1R5/3bR3 b - - 0 1 illegal: No proof kernel
n1q2B2/P2B2B1/1N5q/1PQ1rqrr/nbQ1n1R1/Q2KRb1k/6R1/2NQ1N2 b - - 0 1 illegal: No proof kernel
1K1Q1k2/1Rrb1r1B/Q1R2br1/1B1nB2N/2R2nR1/r1b1NP2/N1QrP2q/8 b - - 0 1 illegal: No possible last move, all moves rejected
QNnn2Q1/nB6/1qNR1R2/2R2K2/1b1b2B1/1rP1rb2/Pk2bN2/2BbR2Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 h4 g5 f4 b5 c6 b4 a6 b3 a7 d6 c3 b2 h6 g4 h7 g3 h5 g2 c7 Ne7 h6 Nbc6 Nf3 g1B Nbd2 Rb8 a8Q Rb3 Nd4 Ba6 c8B Be2 Bg2 Qb6 Rh5 Na7 Nc6 Bd4 Qh1 Rg8 h8R Rg3 Bd7 Nec8 h7 Rd3 Rg8 b1B h8R Be7 Rd8 Bc2 Bf3 Bcd1 Bg4 Rh3 Be6 Rg3 Bc4 Bf8 Ba6 Rf3 Bb7 Re3+ Kd5 e4 R8h6+ Kg7 Ke6 d5 Rf6 Bb4 Rd6 Bf3 Rf8 Bde2 f6+ Kg6 f7 Ba6 Re5 Bae2 f5+ Kg5 Rfd8 Kf4 f8N Bdc5 f6 d4 f7 d3 Nb1 d2 Nd7 d1B Nd2 Bd4 Rh5 Rd3 Rf8 e3 Nb1 Ke4 Ndb8 Rd2 Rb5 Kd3 Kf5 Kc2 Rc5 Rd3 Bd2 Kb2 Rfd8 Bf1 f8Q e2 Qg8 e1N Rf8 Bf1e2 Rff6 Nc2 Bh6 Qa5 Nd2 Qb6 Ne4 Re3 Bg5 Ba5 Nf2 Nb4 Ne5 Nbc6 Bf4 Re4 Bd2 Nd8 Nec6 Bb4 Rc1 Bc2 Rf1 Bcd1 Re1 Re3 Bc1+
B3R2Q/B2Nn3/1N1b3Q/1rn1N1qn/k1B3RQ/2Pbn1PK/2n1N1rR/6r1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 b4 h5 f4 a5 Kf2 e5 Kg3 d5 c6 a4 g6 h4+ Kh3 a3 g7 d4 b6 d3 b7 e4 b5 a2 g3 d2 c7 Kd7 c3 e3 b6 Kc6 Ne2 Kb5 Na3+ Ka5 Bg2 Bd6 Nc4+ Kb5 Qa4+ Kc5 Ne5 d1N Rh2 Na6 b8R Ne7 g8B Rh5 b7 Rg5 Qe4 Kb5 Bc4+ Ka4 Ba3 Be6 c8N Nc5 Rb1 Bf7 f6 a1N f5 Bg6 f7 Nc2 f6 Ra5 Qd4 Bd3 f8Q Rf5 f7 Rb5 Qe4 Rf2 Qh6 Qa5 Bh1 Rg2 f8Q Qd8 Qfg7 Qg8 Qgh8 Qg5 Ng1 e2 Nb6+ Ka5 Rc8 Nde3 b8N e1R Ne2 Reg1 Na8 Ka4 Re8 Ng4 Bc1 Nf6 Be3 Nh5 Nbd7 Qf6 Kg4 h3 Qef4 Qg6+ Qfg5 Qg8 Rf1 Qg7 Rf4 Qf6 Qh4 Qf5+ Kf3 Qg5 Nab6+ Ka3 Ng4 Nb3 Nd5 Ka4 Ba7 Nc5 Nge5 Ne6 Nd4 Re2 Rg2 h2 Rg4 Nc5 Rf2 Rd2 Bg2 h1N N5b6+ Ka5 Re2 Nf2 Bh1 Nd1 Rh2 Nde3 Bg2 Be2+ Kf2 Rc1 Ba8 Bd3+ Kf3 Rg1 Re4 Rdg2 Ne2 Nf1 Rd4 Qe3+ Kg4 Qg5+ Kh3 Nfe3 Nd5 Ka4 Re4 Rd1 Rg4 Rdg1 N5b6+
2B1b1r1/b3BQPQ/1QbR2nn/b4r1b/B1KR4/5R1N/2PNn1qN/N6k b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 e5 f4 h5 b4 d5 g4 a5 b6 h4 b7 h3 g6+ Kf6 b5 h2 b6 a4 c6 d4 c7 e4+ Kc4 d3 g5+ Ke7 f6+ Ke6 f7 Kf5 g7 e3 g6 Ke4 f5 a3 f6 d2 Qh5 d1B Nd2+ Kf4 Nh3+ Kg3 Qh7 a2 Ba3 e2 Be7 Bf5 c8B Nh6 g8N e1B g7 Bh5 Rd1 Nd7 b8N a1N b7 Nb3 Na6 Nd4 Nc5 Ne2 Ncb3 Ra5 Na1 Bfg6 b8Q+ Re5 Qb1 Rf5 Qb6 Bf2 Bg2 Bd4 Rhg1 h1B Bc6+ Kh2 Ba4 Bc6 Rg4 Bc3 Rd4 Ba5 Rd6 Qc7 Rd4 Qg3 Rd6 Qg1 Rd4 Kh1 Rd6 Ng4 Nh6 Rg8 Rd4 Nf2 Ng4 Ne5+ Kb3 Qf1 Nh2 Nfg4 Rd6 Nh6 Rd4 Nd3 Kc4 Ndf4 Bd6 Be7 f8R Bd8 Be7 Bge8 f7 Qg1 Rf1 Bc7 Rf3 Bb8 Rd6 Ba7 Rd4 Bed7 Rd8 Qg2 f8Q Ng6 Qf7 Be8 R8d6
N2q4/5Q2/n2k1n1r/Q2Q1rnB/rnR1b1bQ/1RB1PB2/2P5/N1b2NRK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg2 a5 h4 d5 b4 f5 e6 g5 c6 d4 c7 f4 e3 d3 h6 a4 h5 g4 h7 d2 b6 a3 b7 g3 h6 a2 b5 Ra4 b6 Na6 b8Q Qd6 b7 Re4 Nf3 Qa3 Bb2 Re5 Qa7 Rg5 b8R Rf5 Rg1 Bd7 c8N+ Ke8 e7 Qd6 Bc3 Nf6 Nh2 f3+ Kh1 f2 Be2 f1B Bf3 Bd3 Rb3 Be4 Nf1 Kf7 e8B+ Ke6 Qe1 d1N Nb6 Nb2 Nbd2 Nd3 Na8 Ndb4 Bh5 Kd5 Rab1 a1R R1b2 Be6 Qf7 Qd8 Ra2 Kd6 Ra4 Nc6 Rab4 Ra4 Rc4 Ncb4 Qd1 Rfa5 Qa1 Bg4 Qa2 Rf5 Qa1 Rg8 h8Q Rg6 h7 Rh6 Qhg8 Bg7 h8Q Bf8 Rb2 Bg7 Nb3 g2+ Kh2 Bf8 Qa3 Be7 Na1 Bf8 Rb3 Be7 Rh1 g1N Qg5 Nh3 Rg1 Bf8 Kh1 Bg7 Qh4 Ng5 Qhg8 Nd7 Be1 Bb2 Bc3 Nf6 Qa2 Raa5 Qa4 Bc1 Qb5 Ra4 Qa5 Bd3 Qge8 Be4 Qeb5 Nc5 Qbb7 Nca6 Qbd5+
bn1Rn1n1/1QN4P/2B4B/r3Bk2/r3B1q1/N1R1n1Pr/4RK1Q/b1b1N2Q b - - 0 1 illegal: No proof kernel
B1k1Q2B/2P4q/1K2nrbQ/2R1NNNb/rbQ5/1q4B1/1b2RPQR/b1n5 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kd3 Kd7 Kd4 g5 b4 a5 c4 e6 h4 a4 f6 g4 f7 a3 b6 a2 b5 g3 h6 g2 h5 Be7 f8Q Na6 h7 Bg5 h6 Rb8 b7 Nf6 b6 Rg8 h8B Qe8 c6+ Kd8 c7+ Kd7 h7 Qf7 c5 Ne8 Nd2 Rg6 Qg7 Rf6 Qb3 Nb4 Nc4 Ra8 b8Q Ra4 b7 Nd3 Nf3 g1Q Bg2 Qh2 Bf4 Nc1 Bg3 Bf4 Rb1 a1B+ Rb2 Bh6 Qg8 Bg7 Ng5 Qhh5 Rh2 e5+ Ke3 e4 Kd4 e3 c6+ Ke7 Kc5 d4 Be4 d3 Ne5 d2 Kb6 d1B Re2 Bf5 c8R Bg6 Qc4 Nc7 Qa8 Qh6 b8N Ne6 Qe8+ Kd6 c7 Qh3 Nbc6 Qg8 Rc2 e2 Nd4 e1B Re2 Qf7 Rb8 Bb4 Bh1 Qf5 Qg2 Qd3 Ra8 Qb3 Ra5 Bb2 Rc5 Qd7 Rc2 Bdh5 Re2 Ba1 Qh3 Qf7 Ba8 Qg8 Qc6+ Ke7 Qcg2 Bb2 Nf5+ Ke8 Nef3 Kd7 Ne5+ Kc8 Qhh4 Qf7 Qhe4 Qg8 Qc6 Ba1 Qe8+ Nd8+ Nc6 Rd6 Nh4 Ra7 Nf5 Bgb2 Bc3 Ra4 h8Q Qg7 Qhf8 Qh7 Bh8 Re6 Qh6 Rf6 Qef7 Ne6 Ne5 Bf3 Qe7 Bfh5 Qe8+
n1B3n1/B5R1/q1R5/3RN1K1/2PQbRbB/k2P1r2/3b1qrN/Q1qQ1N1b b - - 0 1 illegal: No proof kernel
3nNN1N/kQ1Q2qq/n4BN1/1b2PB2/3B1R1R/4P1rR/1K1b3r/2r1q1Qq b - - 0 1 illegal: No possible last move
nk2Q1bR/qq4bB/2NN1Q1r/rP6/6R1/1NQ1BPRq/5n1q/B3K1Bn b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 a5 d4 g5 f6 e5 h6 c5 d6 c4 d5 e4 f7 c3 h7 e3 h5 a4 h6 g4 f3 e2 b6 a3 b5 a2 b7 g3 Qb3 g2 Nh3 g1N Be3 c2 Nf2 Ra7 Nd2 Qh4 Rh3 Na6 b8B Ne7 Rg3 Nh3 Nfe4 Nc7 Qc3 Nf2 Nb3 Bg7 f8Q Qh2 Qff6 Ra5 Bba7 Nf5 Rd1 Bb7 Rd4 Kc8 Bb6 Kb8 d7 Bc6 d8N Na8 d6 Bd5 d7 Bg8 Nd6 Qh3 Rdg4 a1Q+ Bc1 Qa4 Bce3 Qe4 Bbd4 Qb7 Bc5 Nh1 Bg1 Ne3 Bb6 Nd1 Bbe3 Qh2 Bh3 c1Q Bf1 Bf7 Bh3 Qa1 Bf1 Rf8 h8B Bg8 h7 Qa4 Bh3 Ndf2 Bf1 Qd4 Bh3 Bh6 Bg7 Qda7 h8R Re8 N8f7 Re6 d8Q+ Qc8 Qd7 Qcb7 Bf1 Qh3 Nd8 Qh2 Qe8 Qh3 Qfe7 Rg6 Be5 Bg7 Qf6 Rh6 Qc2 Rh7 Ba1 Rh6 Qcc3 Qh2 Kd2 e1Q+ Kc2 Qc6 Bd3 Qf1 Kd2 Qfg2 Ke1 Qgh3 Bh7 Qcb7 Nc6+
2n1r2R/B1q2NRn/rrR1n1NP/1k5K/N2Q1qRQ/2QB2B1/1P3b2/4n2b b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 g5 Kg4 a5 f4 e5 d4 c5 h4 a4 b6 e4 h6 e3 d6 Kc6 b7 c4 h5 a3 h7 c3 d7 c2 f6 e2 f7 e1N f5 a2 d5+ Kc5 d6 Ra7 h6 Kc6 f6 Be7 f8R Kc5 f7 Ng2 Ne2 Qc7 Kh5 g4 d8Q g3 d7 Bh4 Qd4+ Kb5 Bf4 c1Q Rg1 Ne7 Rg8 Na6 f8R Nc5 b8B Rb7 Rg4 Rb6 Ba7 Bb7 Qc8 Qc4 d8Q Ne1 Bd6 g2 Bg3 Ba8 Nf4 Ne6 Ng6 Rg8 Rf6 Re8 h8N Qf4 Qcc7 Nc8 Bd3 Bf3 Nf7 Ba8 Rf1 g1N Rf2 Bb7 Rg2 Ngf3 Rg1 Nfg5 Nc3+ Ka6 Rd1 a1R Na4 Bh1 Rg2 Kb5 Rdd2 Nc5 Rc6 Nh7 Qce5 Ra2 Qc3 Ra3 Qed4 Ne6 Rde2 Be7 Re5+ Bc5 Qh4 Ra2 Rd5 Ra1 Rd8 Qc7 Qd6 Bf2 Qdd4 Qf4 Nc5 Raa6 Na4 Re7 Rg8 Re8 Rh8 Ra5 Bh2 Qg3 Qd6 Rd8 Nge5 Rg8 Rg7 Re8 Ng6 Raa6 Qdd8 Qc7 Rg4 Nef8 Bg3 Ne6 Bc2 Qe4 Qdd4 Qef4 Bd3+
NB2Qrkn/2BR2r1/2b2P2/1BbrnN1Q/q1q1Q1R1/n1Q1P3/6NR/4n1K1 b - - 0 1 illegal: No proof kernel
2r1q2Q/b2q4/Kbr1PQQ1/1B6/1N2NB1n/3R1b2/3RPRnR/kN1b2nB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 g4 h5 d4 f5 Kd2 c5 Kd3 a5 Kc4 h4 g6 h3 d6+ Ke6 d7 h2 g5 a4 g7 f4 g6 a3 b6 f3 Kb5 Kd5 e6 f2 b7 a2 Qc2 c4 Bf4 c3 Nh3 Nh6 g8R Nf5 g7 Nh4 Qg6 c2 Ng5 c1Q Ne4 Qd1 Bg2 Nc6 b8N f1N Na6 Qe8 d8Q+ Bd7 Qdf6 Bc5 Rf8 Bb6 g8B Rc8 Bh7 Ne3 Rf7 Qd2 Rd1 Ba7 Bh1 Ne5+ Ka5 Kc4 d5 Kb3 d6 Qd3 b5 Kb2 b6 Neg2 b7 Ba4 d7 Rc6 d8R Qdd7 Rd3 Bd1 Nb4 Rf8 b8Q Rg8 Rc3 Nef3 Qa8 Bb6+ Ka6 Ng1 Rd3+ Qd4 Nbc3 Qdd7 Rc1 a1B Qb8 Kb3 Nb1+ Bc3 Rf8 Kb2 Rc2+ Ka1 Rcd2 Bcd4 Qbe5 Ngf3 Qh8 Ng1 Qef6 Qde7 Rd5 Q8d7 Rf7 Rgc8 Rh5 Qee8 Be3 Qd6 Nf2 Rc5 Qgf5 Qec6 Bg8 Nhf3 Q6g6 Ba5+ Ka7 Qa4 Ne4 Qdc6 Rh3 Nfh4 Bh6 Qd5 Ka6 Rc4 Rf6 Ba7 Bf7 Qd4 Be8 B5b6+ Kb7 Qc6+ Ka6 Qd8 Bd7 Qe8 Qf2 Qd5 Bb5 Qdd7 Qff5 Rc1 Qfg5 R1c6 Rf2+ Qg7 Nec3 Qd4 Q5f6 Qdd7 Bf4 Ne3 Bf3 h1B Rhh2 Bg2 Bh5 Bd5 Bf3 Be4 Bg2 Bf3 Bh1 Neg2 Ne4+
1n3kr1/1n1R2q1/1bNP1BB1/6nK/b1BQ2R1/3RqPN1/4N2Q/1Q1rNq1q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 c5 Kf3 h5 g4 e5 d4 a5 b4 c4 f6 c3 g6 a4 g5 h4 f7+ Ke7 g7 h3 d6+ Ke6 Kg4 a3 d5+ Kd7 f3 c2 g6 h2 b6 a2 b7 e4 b5 e3 b6 e2 Nc3 e1N Nce2 Nc6 b8Q Na7 b7 Nh6+ Kh5 Qe8 g8R Rh7 g7 Kd8 d7 Ke7 d8N Nd3 Nc6+ Kf6 Ng3 Qe4 N1e2 Bc5 f8N Kf7 Nd7 Qe3 Bb2 c1Q Bf6 Bb6 Nc5 Bd7 Rd8 Qb2 Rg1 h1Q+ Bh3 Be8 g8B+ Kf8+ Bf7 Qb5 Bg6 Rd7 Qe5 Rc8 b8Q Nf7 Qb1 Ng5 Qd4 Qc4 Qbe5 Qcc1 Qef4 Qf1 Qh4 Ra8 Be6 Rb8 Qh2 Ra8 Na6 Nc5 Nab4 Nb7 Nc2 Rd6 Rd7 Rc8 Ne7 Nc6 Ne1 Nb8 Nc6 Rd8 Qf5 Rc8 Rd1 a1Q Qb1 Rd8 Rc7 R6d7 Rd3 Rg7 Rd7 Rg8 Qg4 Qae5 Qd4 Qc7 Rd6 Qg7 Rd7 Rc8 d6 Rc7 Nd8 Rc1 Bc4 Rd1 Nc6 Bf7 Ba6 Bb3 Bc4 Bc2 Ne4 Bb3 Rg4 Ba4 N4g3
NK1n3k/1n1NNPq1/3NRbqP/6B1/2b2Qr1/1n3nq1/2R2B1Q/Rr3B1Q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 a5 Kc4 e5 b4 c5 h4 g5 d4 Kg7 f4 e4 b6 e3 Kb5 g4 d6 e2 b7 e1N d5 c4 d7 c3 f6+ Kh7 f5 c2 f7 a4 h6 a3 f6 g3 h5 g2 d6 a2 Be3 c1Q Nc3 Qe8 Kb6 Qe4 Kc7 Ra5 d8B Qeb1 d7 Qcc2 b5 Be7 f8Q Qbc1 b6 Qb3 Nf3 g1N Ne5 Qbb2 Bf2 Rb5 Rh2 Rb3 Nf7 Ngf3 Nd6 Qcb1 Ncb5 Nc6 b8N Ba6 b7 Na5 Nc6 Nd2 Kb8 Nef3 Nc7 Qc3 Na8 Bc4 f7 Bg5 Ne7 Qg6 Qc2 Bh4 Qf5 Rb1 Qf4 Ndb3 Rg2 Qgc2 Rg6 Qe5 Re6 Qg6 Qh2 Qeg3 Qe8 Nf6 Qf8 Rg8 Qe8 Kh8 h7 Bd3 Qf8 Nd5 Qh6 Nb4 Qf4 Kg7 h8R Bf6 Rh6 Bb5 Re2 Bc4 Rc2 Qe4 Rg6+ Kh8 h6 Qf5 Kc8 Qd3 b8N Nb7 Kc7 Nc6 Kc8 Bg7 Re6 Bf6 Bg2 Nbd4 Ng6+ Kh7 Nf5 Bg7 Bh3 Rb2 Rae1 a1Q Rg1 Qaa3 Ra1 Qf8 Kc7 Rb4 Bf6 Bh8 d8Q Rb1 Nge7 Rg4 Bg5 Nb3 Qd7 Qe4 Qd1 Ncd8 Qdh1 Bf6 Nd7 Qg7 Bf1 Kh8 Nd6 Qeg6 Kb8
K1R3b1/2B1PQPk/4B2b/N4r2/qnr1R3/1N2N3/1Rr2bQ1/Qrn2qBR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 c5 Kf3 f5 e4 Kf7 b4 Kg6 g4 a5 d4 h5 b6 f4 b7 a4 b5 a3 b6 a2 e6 c4 e5 h4 Ke4 f3 e7 c3 e8Q+ Kh7 d6 h3 Kd5 c2 g6+ Kg7 e6 h2 g5 f2 d7 Rh7 e7 Ra7 Bc4 f1R Nc3 Rf3 Be3 c1R Qf7+ Kh8 Nge2 Rc2 Nc1 Ra8 Bg1 Re2 Nb3 Nc6 b8R Ref2 b7 Qe8 d8B Re2 Bc7 Bf5 Rc8 Na5 b8R Rh4 g7+ Kh7 Kc5 Ra6 d5 Rb6 d6 Qa4 d7 Be6 d8N Rc2 Nb7 Nf6 Nd5 Rf5 Qd4 Re4 Re1 a1B Re2 Rh4 Re4 Rb4 Qe5 Bd4+ Kd6 Rhf4 Ne3 Nd5 Qef6 Bb6 Qe5 Rf1 Qa1 Rb1 g6+ Kh6 Bf1 Rbc4 g8Q Nb4 Bh3 Bd5 N3c5 Nb3 Na5 Nc1 Ncb3 Re5 Be6 Rf5 Nd1 Bf2 Ne3 Bg7 Rb7 Bf6 g7 Bg5 Qge8 Kh7 Qc6 Bh6 Rb5 Rd4 Qa8 Re2 Kc5 Rc4+ Kb6 Rec2 Ka7 Rf6 Bh3 Rf5 Qc6 Be6 Ka8 Bd5 Qf8 Bg8 Qf7 Rf4 Bd7 Rf5 Be6 R4c3 Rf4 Nbd3 Nd2 Bh4 Rb2 Nb4 Nb3 Rc4 Qf3 Bg3 Re4 Bh4 Bf2 Bg3 Rg1 h1Q Qe2 Qg2 Rh1 Qf1 Bg1 Be1 Qh2 Bf2 Qg2
1K4Bq/1nP2Q2/q1rk2N1/3nBn2/rRb2R2/PrNr2QN/3R1B2/RQ2b3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 e5 Kc3 Ke7 Kc4 b5+ Kd5 g5 h4 g4 c4 e4 f4 b4 h6 b3 c6 d6 c5 g3 c7 g2 a3 e3 c6 b2 h5 e2 f6+ Ke8 a6 e1R a7 Rh7 f5 Bg7 f7+ Ke7 f8R Qe8 Nh3 g1N Bc4 Bb7 c8Q Bc3 Rh2 Nd7 Qc7 Re3 Rd2 Nf3 Qe1 Ba5 Nc3 b1Q Qd1 Rg7 h7 Nd4 h8B Qb6 h6 Qa6 h7 Rg6 Be5 Rd3 Qb8 Nc5 h8N Bc8 c7 Nb7 f6+ Kd7 f7 Nf5+ Bd4 Rdg3 Qg1 Re6 Be5 Nge7+ Ke4 Rd3 Ng6 Nd5 Qg3 Qd8 Ba2 Qf6 Bb2 Qh8 Bb3 Rf6 Bd4 Ke6 Bf2 Bd7 Bc4 Bb5 Ba2 Bc4 Bb3 Nd8 Qb6 Rb8 a8R Nb7 Ra7 Ra8 Rb8 Bb4 f8Q Rf3 Nd1 Kd7 Be5 Bc3 Ba2 Ba5 Qb1 Rb3 Qf7+ Kc6 Rd4 Be1 Rf8 Nb6 Nc3 d5+ Kf4 Re6 Rd2 d4 Ke4 d3 Rb8 Nd5 Rf8 Qb5 Ra4 Qa6 Rb4 Rf6 Rb2 d2 Rc2 d1R Rd2 Qh4+ Nhf4 Nde3 Rh8 Nbd6+ Kf3 Qa5 Qg8 Bd3 Re2 Rb2 Nh3 Ba6 Bc4 Rd3 Rd2 Rb3 Qg7 Ra7 Bg8 Bc4 Qf7 Qb6 Rh5 Ra4 Rg5 Qa5 Rg4 Qh8 Rd4 Qa6 Rf4 Nb7 Ke4 Rfd6 Bf6 Na5 Ke5 Nd5 Bg7 Rd8 Ke6 Rb8 Be5 Rb6 Rd4 Kc5+ Kd7 Nb7 Kc8 Rc6 Kb8 Re6 Bg7 Rc6 Rf4+ Kd6 Be5+
1nq3Q1/P1B4b/rbN2rR1/1N2BRB1/Q1n1K3/b2Pb1NB/3kQr1r/R7 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 f4 Kc5 a4 Kb4 h4 c5 a6 b5 a5 g5 a7 e5 d3 c4 d6 e4 a6 c3 h6 c2 d7 g4 f6 g3 h7 g2 h5 Nh6 f7 Qe7 d8N Qe8 f5 Kb3 f6 b4 Nc6 Bf5 Ne2 Qc8 Ng3 g1B+ Kf4 e3 Qe2 Bg6 Na3 Kc3 Bh3 Ng4 h6 b3 Kf3 Bc5 f8Q b2 f7 b1R Qg8 Bb6 f8R Rb2 Rf5 Ne5+ Ke4 Nc4 Rh2 Ra2 Rg2 Rb2 Qh5 e2 Bg5 e1B Qe2 Bge3 Rg1 c1R Nb5+ Kb3 Rg2 Bb4 Rg1 Rf1 Rg2 Nd7 Rg1 Ba3 Rg2 Rb8 a8Q Rf2 a7 Ra2 Qe8 Rf8 h8B Bh7 Be5 Rf6 Bc7 Rd2 Qg8 Kc2 Rgg1 Rh2 Qb7 Rf2 Qa6 Rb7 Qa5 Nb8 Rg2 Bbd4 Qb4 Rb6 Rgg1 Ra6 Qa5 Bg6 h7 Bb6 h8B Bh7 Bg7 Rf7 Bge5 Rf6 Rgf1 Rh2 Rf4 Rf2 Rh4 Rh2 Rh6 Rf2 Rg6 Rh2 Qh5 Rdf2 Qa4+ Kd2 Qe2+
2R1Nr1b/R1n1Q3/7P/1r1k2rp/3RN1B1/K1n3PB/2QBbQbQ/1q2Nn2 b - - 0 1 illegal: No proof kernel
2nQNB2/3RN2P/2R1r3/Qbr1n2n/2Nb2b1/1k1P4/1N2pQR1/1KB1qr1B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ba3 Kf7 h4 g5 f4 e5 f6 c5 h6 b5 f5 g4 h5 c4 a6 c3 d6 c2 d7 c1N a7 g3 Nc3 g2 Nf3 g1R Rh2 b4 Na4 Rg4 Bg2 b3 Bh1 e4 Rg2 Bd6 Ne5+ Kf8 f7 Ke7 f6+ Ke6 f8Q Kd5 f7 Ne2 Rc1 e3 Rc6 Nd4 Bc1 Rh7 Qc2 Nf6 Kd1 b2 a3 b1B Nb2 Re4 a4 Bc7 a5 Nb5 a6 Rh8 Qe7 Qe8 d8R+ Nd6 d3 Bb6 Qd2 Ba2 Kc2 Bc4 Kb1 Bg4 Qe2 Rf4 f8B Rf1 Qf2 Kd4 Qc7 Nbd7 Qb8 Bb5 Nec4 Ba4 Qc7 Rb8 a8N Kc3 a7 Bd4 Qa5+ Kb3 Nc7 Rb5 a8Q Rc5 Qc8 Qe7 Ne8 Bb5 Qb8 Qe4 Qba8 Ne5 Rd7 Rg8 Q8d8 Rg5 h7 Nc8 h8N Rg6 h6 Nh5 h7 Re6 Qa7 Qf4 Qa8 e2 Qaa5 Qd2 Ng6 Qe1 Ne7
r1Q3n1/2B2K1P/4RNPN/3Q2QB/kr1b2N1/1B1n1pR1/1bbR1Rn1/3r1q2 b - - 0 1 illegal: No proof kernel
3nQ3/n1P1BR2/2r3n1/2bBbR1R/3QQNbq/NK3P2/N4p1R/4rBrk b - - 0 1 illegal: No proof kernel
1b2Q1K1/2p2n2/b2P1N2/qk4B1/1N1N2n1/B3rQRb/1P1R1R1n/1RQr1r1B b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 a5 Kf4 h5 Ke5 a4 f4 h4 d4 a3 g4 h3 g6 e6 d6 h2 g5 a2 b6 Kc6 g7 Rh5 b7 Qd7 f6 Rh7 f7 Qe7 g6 Rh5+ f5 Ra4 d5+ Kb6 d7 Ra3 d8R Qe8 Nf3 Be7 f8Q Rh4 f6 Ra7 f7 Rh3 Bg5 Nf6 g8R Bc5 g7 Qa4 Bg2 Qa5 Qc1 Kb5 Rf1 h1B Rf2 Bd7 Nfd2 Re3+ Ne4 Bc8 Bf3 Bg2 Rd7 Bf1 Bh1 Bh3 Qe8 Ra6 f8B Ba7 Ba3 Rb6 Qh5 Rd6 Qf3 Nc6+ Kf4 Qd2 b8N Ng4 Nf6 e5+ Kf5 e4 Kg6 Nd8 Kh7 Ba6 Nc6 Nf7 Rdd8 Bb8 Nc3+ Kb6 Rb1 a1R Na2 Qa5 Nab4 Kb5 Rh8 Rd7 g8Q Rd6 Nd7 Rf6 Qe8 Rf5 d6 Rd5 Rc8 Rd1 Nf6 Rf1 Rf8 Rd1 Rd2 Rf1 Kg8 Rd1 Qc2 Rf1 Re1 Rd1 Qc1 Ka4 Bh4 Ng5 Qc2+ Kb5 Qe6 Rc3 Kh8 e3 Qfe4 e2 Nd7 Rc4 Rf2 Rc1 Nf6 Ne3 Rg8 Rc3 Qe8 Nf7+ Kh7 Ra1 Rg3 Ng4 Kg8 Re3 Bg5 Rc1 Red1 e1N Qb1 Nf3 Qa1 Nfh2 Qf3 Ree1 Qb1 Rc3 Qc2 Rce3 Rb1 Rc1 Qc3 Rce1 Qc1 Rd1 Nd4+
K1B5/nR1rk1br/N4Qq1/N3nQ1n/1bN4P/pB6/PB3RR1/B1rQ2q1 b - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 c5 gxh5 c4 e4 c3 f4 b6 f5 Ba6 bxc3 Be2 c4 Bd3 c5 Bb5 Qd3 Bc4 Qd1 Be6 fxe6 Qe7 Qd5 Qf6 Qd1 Qd8 Kd2 f5 Kc3 a5 Kd4 g5 Kd5 g4 h4 a4 c4 g3 c6 a3 e7 f4 c5 g2 c7 b5 c8B f3 h6 f2 c6 d6 c7 b4 h7 b3 Nd2 b2 Ne2 b1N Bb2 g1B Nc4 Ra4 Rh2 Nd7 Kc6 d5 Kb7 d4 Rg2 d3 Nc1 d2 Nb3 Nc3 Rb1 Bh2 Nba5 Nd5 Ka8 Kf7 e8N Ngf6 e6+ Ke7 e5 Nc3 Ba1 Ng8 Rb7 Ngf6 Bd3 f1R Bc2 Bf4 Bb3 Bg7 Bb2 Nb5 Ba1 Rg8 h8B Na7 Bb2 Nh5 Ba1 Kf8 e7+ Kf7 Bb2 Be3 Ba1 Bc5 Bb2 Bb4 Rf2+ Kg6 e6 Ne5 Ba1 Qd3 Bb2 Bf8 Bf6 Bg7 Ba1 Ng4 Bfb2 Ne5 Qe2 d1Q Ne3 Qc1 Rg2+ Ng4 Bd7 Nf6 c8Q Bc3 Nc7 Rh8 e8R Rd4 e7 Nh5 Nec4 Kf7 Na6 Bb4 Qc6 Qdc2 Bc8 Qg6 Qb5 Rd7 Qf5+ Qf6 Qe1 Rh7 Qee5 Qe3 Qd4 Rc1 Qd1 Qg1 Rd8 Rc7 Rdd2 Ne5 Rc2 Rd7 Rcf2 Rd8 Qfg4 Qf5 e8Q+ Kf6 Qc6+ Rd6 Rb6 Ke7 Rb7+ Rd7 Qg5+ Qf6 Qf5 Qg6 Qcf6+
4b1nr/2q1Q1bB/1nRQQ3/1p3BN1/1P4Qr/2B1RN2/2qP2N1/b1k2KRr b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 d5 c4 a4 cxd5 a3 Qa4+ Bd7 Qxa3 Be6 Qa7 Bc8 b4 Kf7 h4 Kf6 a4 Ke5 f4+ Ke4 f6 c5 h6 e5 h7 b5 d6 g5 f5 c4 a5 g4 d7 g3 f7 c3 a6 c2 f6 g2 h5 Bd6 f8R Nc6 f7 Qc7 d8Q Bf5 h6 Rc8 Na3 Nce7 Qe8 Qd7 Bb2 c1B Bc3 Qd8 Nf3 g1R Nc2 Be6 Ra3 Rb8 Ne3 Bb2 Ng2 Nc8 Qae7 Nb6 a7 Bd5 a8B Bc5 Q8d7 Ba1 Qde6 Qd6 Rc8 Bc6 f8Q Qc7 Q7d6 Rb7 Qfe7 Be8 Ke2 Bd4 Ke1 Qd8 Rc6 Rb8 Bb7 Qc7 Bc8 Rb7 Ngh4 Rg4 Ng2 Rh4 Rg1 Ra7 Be2 Ra4 Bd1 Kd3 Kf1 e4 Qg4 Ra8 Bf5 Rh1 Be2+ Kc2 Bd3+ Kc1 Rb3 e3 Bde4 Bg7 Qee6 Ne7 Ra3 Rf8 h8N Ng8 h7 Rc8 Nf7 e2+ Ke1 Rb8 h8Q Rd8 Qde7 Rd4 Qh2 Rc4 Qhd6 Rd4 Ne3 Rc4 Kf2+ e1Q+ Kg2 Qd1 N7g5 Rd4 Bh7 Rc4 Bef5 Re4 Kf2 Rd4 Ng2 Rc4 Nfe1 Qc2 Kf1 Rd4 Nef3 Re4 Qh3 Rh4 Qhg3 Nf6 Qg4 Rh8 Be5 Ng8 Re3 R1h2 Bd4 Rh1 Bc3
1Qn1NRN1/5N2/bQ1R3P/nr1R1q1q/2R1rkp1/b1K2n1Q/3PB1BB/4q3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 e4 a5 h4 c5 e6+ Kd6 h6 Ke5 e7 g5 e8B f5 h5 c4 h7 f4 d6 c3 b6 g4 b7 c2 b5 a4 h6 a3 b6 a2 d7 f3 Bb2+ Kf4 e5 c1Q e6 f2+ Ke2 Qcc7 Kd3 Qe7 d8R Qc1 Rh5 Nf6 Nf3 Nc6 b8Q+ Qc7 b7 Qd6+ Bd4 Qc5 e7 Ra7 Be2 f1Q Qb3 Ra6 Ng5 Nd5 Bg1 Kf5 Nc3 Rb6 Nce4 Qe1 Rc1 a1N Nf6 Qf4 Rc4 Rb5 Rd6 Na5 Ng8 Nb6 Kc3 Nc2 Bc6 Nd4 e8N Nf3 Nf7+ Qg5 Be4+ Kf4 Qc7 Be7 b8Q Ba6 Qca7 Nc8 Qab6 Qg6 Rhd5 Qf5 Qa3 Qcf2 Qb3 Qh2 Qa3 Qhh5 Qb3 Nd4 Bg2 Bf8 Ngf6 Rg8 h8R Rg6 Ng8 Re6 Qb1 Re4 Qd3 Be7 Qh3 Nf3 Ngf6 Qfg6 Rf8 Qgf5 Ng8 Ne5 Rf6 Ba3 Rfd6 Nf3 Bh2+
1kq2Nn1/r1Nq1Q1R/N1BBBp2/1R1rbP2/N3rn2/K3Q3/2P1b2R/4b1Q1 b - - 0 1 illegal: No possible last move
5Qb1/2RKBB1b/3N1prP/R2r4/3nNq2/2PRB1nQ/Q2b4/kqn2QN1 b - - 0 1 illegal: No possible last move, all moves rejected
2QRb2r/1N2nq2/N3p3/rr1nN2P/1Pbk3B/1Q2RR1B/2NbQ1K1/3q2B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 b4 Kf6 h4 Ke5 f4+ Ke4 Kf2 a5 c6 d5 h6 g5 b6 a4 b7 a3 c7 d4 h7 d3 c5 a2 c6 d2 h5 g4 f6 e6 f7 g3+ Kg2 Bc5 f8Q Be3 f5 Nd7 b8N Ndf6 Qb3 d1B Rh3 Bf2 Nf3 Ng4 f6 Qe8 f7 N8h6 Be3 Qd8 Ne5 Qd7 Na3 Be1 Nc2 Nf6 Bg1 Nd5 Na6 Be2 Rd1 a1R Qg7 Bb7 c8Q Rb8 f8R Nf5 c7 Nfe7 Rf3 Bc4 Qg5 Ra3 Qd2 Bc6 Qf2 Bd2 Qe2+ Be3 Rd2 Rb5 Rd1 Raa5 Rd3 Rf8 h8B Rg8 Bf6 Rh8 Bg5 Qe8 Bh4 Qf7 Qg8 Be8 c8N Nc7 Rd8 Ncd5 Na1 Kd4 Nd6 Bf2 Re3 Be1 Nb7 Bd2 Qh7 Rf8 Qhc2 Rh8 Qc1 Bd3 Qc8 Bc4 Kh1 g2+ Kh2 Ng8 Rhf3 Ne7 Bgf2 g1Q+ Kh3 Qgg6 Bg1 Qe4 Kg3 Qc2 Bh3 Qc1 Kg2 Qd1 Nc2+
4B1N1/1Nn2q2/2qPP1QR/7n/bB2Rb1q/Bb1p2r1/Q3r1NR/K2B1k1Q b - - 0 1 illegal: No possible last move
Q2R1qBN/NB6/1n1p1qR1/B3B3/1b1k1rP1/1QNq2Q1/nRPr1b2/1K3b2 b - - 0 1 illegal: No possible last move
K1Br1R1r/5N1q/P1QQQR2/2n1pP2/5R2/R4Bq1/1Bnnk1bN/2b1N1r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 d4+ Ke4 a4 e5+ d6 b5 h4 g5 f4 g4 d5 g3 h6 b4 h5 b3 h7 b2 a6 c6 h6 g2 f6 Bd7 a7 Bf5 a5 Qd7 Kb6 c5 f7 c4 a6 c3 Qf3+ Kd4 Na3 b1R+ Bb2 Qe7 d7 Bc2 Kb7 Ba4 d6 Qf6 d8Q Bc2 d7 Qd6 Rh4 Qe7 Qc8 Qc5 d8Q+ Nd7 Qfc6 Ke3 Nf3 g1Q Nh2 Be4 Bh3 Ne7 Nc2+ Ke2 Ra3 Bg2 Ne1 c2 Qb6 Bg7 f8R c1N Rf6 Nb3 Qg8 Qcd4 Qe6 Rad8 a8B Qe4 Qc5 Nd5 Q5d6 Nb4 Rg4 Rhg8 h8N Nd2 h7 Nc2 Nf7 Bh6 h8R Qh7 Rh4 Rge8 Rf8 Nc5+ Ka7 Qe3 Bb7 Qed3 f5 Qc3 Bc8 Qg3 Ka8 Ra1 Nef3 Rg1 Ne1 Nc4 Rd4 Bc1 Rf4 Nd2 Rh8 Bf1 Bg2 Rg8 Bd5 Bg2 Be4 Rg6 Rf8 Rg8 Bd5 Rh8 Bf3+
1b2n2R/1K2nrBP/QR2P1N1/1Q2qN2/rbBNRn1p/2B5/k2qb3/3Q3R b - - 0 1 illegal: No proof kernel
Q2q3q/B3RbPQ/5npN/Rn3N2/2Rn4/1Pk1Nr2/2B1BR2/Kb1Qr1b1 b - - 0 1 illegal: No proof kernel
r1rQQq2/1BR3p1/4QNPn/QRn2Nqr/2n3b1/3B1N2/2bP2kR/K1B5 b - - 0 1 illegal: No proof kernel
1b3R1K/rq1qqP2/b2n1N1R/B5n1/kN2Qr2/2BB1Q1N/2PrB2p/1Q3R2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 e5 Kf3 d5 Kg4 Kd7 Kh5 a5 f4 h6 Kg6 h5 b4 a4 g4 d4 b6 Kc6 b5+ Kd7 b7 e4 f6 d3 b6 Kc6 f7 Kb5 f5 h4 c6 h3 c7 a3 f6 a2 Bd2 e3 Ba5 e2 Nc3+ Kc4 Nd5 Kb5 Nb4 e1R Be2 Nd7 b8Q Qe8 b7 Bc5 Kg7 Qe3 f8R Ka4 g6 d2 f7 Bd6 g5 Ndf6 Qb1 Ra7 Qa8 d1Q b8B Qf3 Qe4 Ba6 c8Q Ne7 Qcb7 Nc8 Bbc7 Bf4 Be5 Qd7 Bc3 Rh4 Rh2 Nh7 Kh8 Rc1 g7 Rd1 g8N Rd2 g6 Bb8 g7 Rf4 Nf6 Nd6 g8B Ng5 Bh7 Qe3 Qf3 Qee7 Qbe4 Qb7 Rh1 h2 Nh3 Qbd7 Rg1 Qb7 Rg4 Qed7 Rh4 Qe7 Rh6 Qbd7 Qbh1 Qb7 Rf1 a1Q Qd4 Qa2 Bhd3 Qae6 Qde4 Q6d7 Rf2 Qdc8 Qb1 Qcd7 Rf1
2k1q3/N1r1p3/P1N1b3/1Bn1rNKQ/R2qP2B/1n2R2B/3BbQRQ/q4r2 b - - 0 1 illegal: No possible last move
kB2Q1n1/B1Q1p2K/P1BRP3/N2nrr2/1n1b3N/Rr1R4/Rq1q2bQ/1N6 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 Kf2 Kd7 Kg3 b5 Kf4 f5 h4 c5 d4 Kc7 e4 Kb7 a4 b4 e5 c4 e6 b3 a6+ Ka7 a5 b2 h6 c3 h5 c2 g6 Qd7 Kg5 f4 d6 f3 d5 f2 g7 Qb5 Kg6 Qb6 d7 Qd6 d8N Qd7 h7 Nf6 g8Q Bg7 d6 Ng4 h6 Qb5 d7 Qb6 Qe8 Bf8 Nb7 Ne3 d8R Qc6 Bb5 f1N Nf3 Ng3 Ra3 Ngf5 Nh4 Bg7 Rh3 Qd6 Bc6 Nd5 Rhd3 Rf8 h8Q Bd4 h7 Nh6 Be3 c1Q Qc2 Ng8 Bf2 Qh2 Rd6 Qd2 Qe5 Rf5 h8B Bd7 Kh7 Qg2 Qh2 Re5 Nc3 b1R Bg7 Rb3 Nb1 Rf5 Be5 Bc8 Qc1 Qb2 Bg1 Qgd2 Bg3 Nd7 Qc4 N7b6 Ra2 Kb8 Be5 Nb4 a7+ Kc7 Bf4 N6d5 Bf2 Rb8 a8R Re5 Ra6 Ra8 Qc5 Kb8 Qb6 Ra7 Qc7+ Ka8 Rb6 Rf5 a6 Re5 Na5+ Rb7 Bb5 Rb8 Bc6+ Bb7 Rb5 Bc3 Ba7 Bd4 Nc4 Rc8 Rba5 Rd8 R5a3 Rb8 Qed7 Rf8 Na5 Rff5 Bb8 Qdc3 Be3 Qcd2 Qe8 Nc3 Bb5 Bg2 Bf2 Ncd5 Ba4 Bc3 Bfa7 Bd4 Bc6+
4r1BN/1RrP1bB1/1P3pB1/1n2Q2R/1N2QK1Q/bq3b2/nN2qk2/1n1R3N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 c5 d4 a5 e4 h5 b4 f6 g6 h4+ Kf4 c4 g4 c3 b6 a4 e6+ Kd6 g7 a3 e5+ Ke7 d6+ Ke8 g5 c2 b7 a2 g6 h3 b5 h2 b6 Nh6 g8R Nc6 b8N Ra3 d7+ Ke7 d5 Ra4+ Qd4 Qe8 d8N Ba6 g7 Bc4 Nd2 Na5 Na6 Qf7 d6+ Ke8 e7 Kd7 Bd3 Nf5 Nb4 Nb3 Ne2 Ra7 Ng3 Rc7 Qe4 Qd5 Nf7 Ke6 d7 Nfd4 e8Q+ Be7 Qa8 Nb5 Rb8 Re8 g8B Bc5 Rb1 a1Q Rb7 Qb2 Qa4 Bf8 Rd1 h1B Ra1 Bf3 Nh8+ Ke7 e6 Kd6 e7 Kc5 Rh1 Qa2 Ba3 c1N Rh5 Qb2 Qe5 Na2 Bg6 Qc2 Rb1 Qd3 Rd1 Qe2 Qe6 Kd4 Qe4+ Kc3 Bc1 Qdd3 Ba3 Bf7 Nc4 Nd2 Bc1 Qd5 Nb2 Nb1 Be3 Qb3 Bc1 Rd8 e8Q Bc5 Q8e7 Re8 Q7e5+ Nd4 N4d3 Ba3 Bd2+ Kc2 Bb4 Nb5 Bf8 Nd2 Bg7 Nb1 Rc1+ Kd2 Qad4 Qbd1 Nb4+ Ke1 Qf2+ Kd2 Qh2 Ke1 Qh3 Kf2 Qh4 Qd5 Rd1 Qb3 Nh1+
1bK1RN2/1rp1qB2/n5Q1/n2Pr1RP/BQ2bNR1/1N6/1q1B2B1/bQ1k2q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 a5 b4 a4 e4 a3 d4 a2 h4 g6 b6 Ra7 b7 Bg7 d6 Kc6 d7 Ra6 b5+ Kb6 e6 Ka5 b6 Kb4 e7 Nc6 b8R Ne5 e8B Qe7 d8N Ra3 d5 Bd7 b7 Rh6 Nd2 Kc3 Bg2 Ra6 Nb3 Nc6 e5 Nb4 e6 Rb6 Bf7 Na6 Nh3 Bd4 Rg1 Bc5 Ke5 g5 Qg4 Kc2 Qb4 g4 Bd2 g3 Nf4 Rb5 Rae1 Ba7 Re4 a1B+ Rd4 Rg6 h6 Rg5 h7 Bc8 Ra8 Bb8 h8Q Bd7 h5 Be8 Bf3 g2 Qh6 Rb6 Qf6 Bb5 Qg6 Bd3 Rd1 g1Q Bg2 Be4 Rb1 Ba7 b8Q Rb7 Rf1 Qh2 Rf3 Qg1 Rg3 Qc1 Rg4 Kd1 Rg3 Qb2 Rg4 Qe8 e7 Qf8 e8B Ne7 Ke6 Nc6 Kd7 Qe7+ Kc8 Na5 Ne2 f4 Ne6 f3 Ba4 f2 Nf8 f1Q Nf4 Rf5 Rd3 Re5 Rdg3 Qg1 Rg5 Rb6 Qb7 Bb8 R3g4 Nc5 Ra6 Rb5 Re6 Na6 Qb6 Qe1 Qg1 Rb7 Qgb6 Qg1 Q6b5 Qd6 Re8 Qdc5 Qd3 Qe7 Qb1+
1N2k3/1P1b3Q/Q1R3Kp/1r4BQ/n1r1P3/1nB1N3/rbq1qNRN/1BqR4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 a5 Kf3 c5 Kf4 f5 e4 a4 g4 a3 b4 h6 d4 c4 b6 c3 e6 c2 b7 a2 e7 Ra6 g6 Ra5 d6 Qc7 g5 Qc6 d5 Qd7 b5 Ra7 g7 Na6 b8N Rh7 g6 Qc7 b6 Nc5 b7 Ra3 Bb2 c1Q+ Nd2 Qd7 Nh3 Ra4 Bd3 Qb1 Nf2 Qe6 Bc3 Na6 Nc4 Qc2 Rc1 a1R Qh5 Rb4 Rhd1 Raa4 Ne3 Nf6 g8Q Nd7 g7+ Qg6 Qe6 Rb5 g8R Qe2 Bb1 Nac5 Rg7 Qf7 Rg2 Bg7 Qeg6 Rh8 Qh7 Nb3 Rc2 Nb6 Rcc1 Qg6 d7+ Kf7 d8Q Rc4 e8N Na4 d6 Bd7 Qb6 Kf8 Ba5 Bb2 Qa6 Qf6 Bb4 Qc3 Nf6 Qcc2 N6g4 Rg8 Bc3 Rg7 Kg3 f4+ Kh4 f3 Nh2 Rf7 Qd5 Ke8 Kh5 Rf5+ Kg6 Rf4 Qh5 Rff5 Rd5 Ra5 Rc5 Rd5 Rc6 Rdb5 Nfg4 f2 Rd1 f1Q Nf2 Bh3 Rd3 Qfc1 d7+ Kf8 d8B Bd7 Rd1 Ke8 Nf5 Nac5 Bg5 Ra2 Ne3 Na4 Rf6 Qg4 Rfd6 Qge2 Rc6
1B1QrQR1/PP1n3B/8/qr3q2/rNpbNR2/2Rbn3/2R4Q/Bn2kN1K b - - 0 1 illegal: No proof kernel
RR1b1b2/2Qr1Nqn/1B3r1R/Q1NB1BNp/rn1PK3/2Q3r1/7P/2r1kN2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Qf6 cxd5 Bf5 gxf5 Qd8 Kf2 Kf7 Kf3 g5 b4 a5 e4 h5 e6+ Kf6 e5+ Ke7 f6+ Ke8 b6 c5 f7+ Ke7 b5 g4+ Ke4 f3 b7 a4 b6 c4 Bh3 a3 Qe1 g3 Bf5 g2 Nh3 g1R Ng5 Rg3 Rg1 Na6 b8Q c3 b7 f2 Qc7+ Qd7 b8R Bg7 f8N f1R d4 c2 Nd2 a2 Ba3+ Nb4 Rg2 Rh1 Nf1 c1B Qec3 Bf6 Qa5 Qc7 Nd7 Ra6 Nc5 Rh7 Rb2 Bg7 Rb6 Bf8 d6+ Kd8 d7 Ke7 d8N Qd7 Rab1 a1R Ra2 Bd2 Rd6 Be1 Ndf7 Nf6+ Kf4 Rg7 Rc6 Nh7 Ke4 Rhg1 Qc7 Ra4 Rbb2 Rc1 Rb1 Nd5 Rb8 Nb4 Ra6 Rg6 Raa8 Rf6 Rb2 Na6 R2b6 Bf2 Bb4 Be3 Ba5 Nb4 Rc6 R1g2 Bb6 Rf2 Nf3 Bg5 Rd6 Bh4 N3g5 Rfa2 Rc6 Ra7 Rd6 R2a4 Qc6 Bg7 Qb5 Rg6 Nf3 Qe8 Qa5 Qh8 Rc6 Bf8 Rd6 Bf6 N3g5 Qg8 Rc6 Qg7 Nd8 Ke8 Ndf7+ Bd8 e7 Rd7 Rc7 Rgd6 Rc6 Rd5 Rh6 R5d6 Qb2 Rf6 Qc3 Rdd6 Nce6 Kd7 Nc5+ Kc6 e6 Rd5 e8Q+ Rd7 e7 Bc7 Qa7 Kb5 Qc8 Bd8 Qcc7 Ra3 Qe3 Kc4 Qa5 Ra4 Qd2 Rd3 Qe3 Kc3 Qeg3 Kc2 Qe1 Rg3 Qc3+ Kd1 e8B Rdd6 Bc6 Rd7 Bd5 Ke2 Qb3 Ke1 Qc3+
Qb1Q4/RpB2bKB/1Nn1k1Pr/n1Q2bP1/B5r1/qNR2RB1/3N2b1/5b2 b - - 0 1 illegal: No proof kernel
1R5K/NrR5/n4rq1/P2k1r2/Bn1NB1QQ/b1b1RQ2/pPb2N2/BQ5r b - - 0 1 illegal: Other
4N3/q3BBR1/2K1P1n1/PBb1R1rR/k3pQ2/n2Q1b2/4bNb1/r2NRr1Q b - - 0 1 illegal: No proof kernel
n1b1r3/NQ2Nq2/B2pkb1Q/1P4rn/nB3Q2/1P4Q1/2R3Rb/BnR1KN2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 c4 g5 f4 a5 c6 e5 f6 g4 c7 d6 f5 a4 h6 g3 h5 a3 h7 g2 h6 e4 Ne2 g1N Qd3 a2 Nd2 e3 Ng3 e2 Rh2 Ra4 Rg2 Bb7 c8R Ke8 f7+ Kd7 f6 Ba8 Nf5 Qe7 Qg3 Bg7 f8Q Bb7 f7 Be5 Qfg7 Nf6 f8Q Qf7 Ne7 Na6 Rc6 Rg8 h8B Ke6 h7 Nh5 Rb1 a1B Rc7 Qe8 Qff4 Ra5 Qgh6+ Qg6 Bg7 Qf6 h8Q Bc8 Q8h7 Re8 Qhe4 Qg6 Qb7 Bf6 Rc5 Nc7 Rc6 Bh4 Bc3 Bf6 Bb4 Na8 b3 Qf7 c5 Be5 Bb2 Ra2 Ba1 Rb2 Rc1 Nf3+ Kf2 e1N Bd3 Qg8 Be4 Qf7 Ke2 Rb1 Nf1 Nd3 Rc7 Nb2 c6 Nd2 Ke1 Bd7 Rc8 Na4 c7 Rb2 Qa6 Rc2 Bb7 Rc5 Qc6 Nb1 Ba6 Rd5 Qb7 Rc5 Rb8 Rd5 c8N Rc5 Na7 Bc8 Qc7 Rd5 Rb6 Rc5 Rc6 Rd5 R6c2 Rc5 Qff2 Bf4 Qb7 Rg5 Qh4 Bg3 Qf4 Bh2 Q2g3
N1BQnR2/n4b2/2P1rn2/3Bk2q/1B2R1r1/b4QP1/pR2NKNn/Q1b1R3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 b4 d5 c4 h5 f6 Ke6 g6 a5 c6 h4 g7 d4 f7 h3 b6 d3 c5 a4 b7 a3 g3 d2+ Kf2 h2 b5 a2 b6 Nd7 b8R Rh7 b7 Kf6 f5 e5 c7 e4 c6 Rh6 Nh3 Ke5 f6 Qe8 Bg2 Ra4 Nc3 Ba3 f8R Qh5 f7 Ngf6 g8Q Ne8 Nf4 Ndf6 Re1 Be6 c8B Bb3 Nce2 h1N+ Kf1 e3 Bd5 Rb4 Ng2 Nf2 Bb2+ Rd4 Bc3 N2g4 Bb4 Nh2+ Kg1 Rh4 Rc1 Rg4 Rc4 Rhg6 Rd4 Rh6 Qa1 d1N Rc4+ Nc3 Rf4 Nd7 Rd4 Re6 Re4+ Kf5 Qh8 Nb5 Qhd4 Na7 Qb6 Bc1 Qd8 Ng7 Re8 Ba3 f8Q+ Nf6 Qf7 Bc1 Rf8 Ne8 Ra8 Bb2 b8N Bc1 Na6 Bc4 Rb8 Ba3 Nc1 e2 Nc7 Bb3 Na8 Bc4 Rd1 e1B Ne2 Bd2 Kf2 Bdc1 Re1 Bb3 Bd2 Bc4 Rb2 Bb3 Rd4 Ke5 Bb4 Nh7 Qf3 Nhf6 Be4 Bc2 Bd5 Bg6 Rf4 Bf7 Re4+
3nrr2/2N2bN1/1PR1Bn2/3n1p2/1R1B1R1P/1Q1QbKRB/6QN/1r1nq2k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 h4 a5 e4 c5 b4 g5 d4 f5 d6 Ke6 d7 c4 h6 a4 b6 c3 d5+ Kf7 e6+ Kf6 e5+ Kg6 e7 g4 e8N Kh5 h7 c2 b7 a3 b5 a2 e6 Be7 d6 Nh6 Ng7+ Kg6 Bh3 g3+ Kf3 g2 Nc3 Qe8 d8R Nf7 d7 Rf8 h8Q Bg5 e7 Be3 Bb2 c1R Qg8 Rb1 Qb3 Kf6 b6 Ke5 Rh2 Kd4 Rh1 Kd3 Nd5+ Kd2 Bd4 Ke1 Nc7 Kf1 Qd5 Nh6 Qc6 Ng4 Qb3 Nf6 Qe4 Nc6 b8R Ba6 Rdc8 Bc4 d8Q Bf7 Qd6 Nd8 Qec6 Re1 Rb1 a1N Rh2 Nc2 Qcd5 Qb5 e8B Qa5 Bd7 Nb4 Be6 Rd1 Qe4 Nbd5 Rh1 Qe1 Qc6 Ra2 Qed3+ Re2 Ra8 Rc1 Ra4 Rd1 Bg4 Rc1 Rh3 Rd1 Rb2 Rb1 Rg3 Ne7 Nh3 Ned5 Nf2 Kg1 Bh3 Kh2 Ng4+ Kh1 Qb7 Bf2 Bd7 Ree8 Nh2 Bg1 Be6 Be3 Rg6 Rd1 Rf2 Rb1 Rb4 g1N+ Kg3 Qd2 Rf4 Ne2+ Kf3 Nec3 Rg3 Qe1 Na6 Bg1 Rc6 Nd1 Nc7 Be3 Qa8 Bg8 Qaa2 Bf7 Qg2#
2R1rB2/3qnnpQ/1NPk1P2/R1r1N2N/1KN2QQ1/nB4b1/b2Rn1b1/6B1 b - - 0 1 illegal: No possible last move
1B1r3Q/N1B2p1R/KR1QRb2/1Q3nN1/B2PNPb1/6nb/1rbB1kn1/2q5 b - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 d5 dxc5 b5 a4 d4 axb5 d3 e3 Qd4 exd4 Bg4 Bf4 Bd7 Bc1 Bc8 Kd2 Kd7 Kc3 Ke6 Kb4 Kf5 Ka5 Ke4 b4 h5 c4 e5 g4 h4 f4 a6 g6 d2 c6 Ke3 c5 e4 b6 h3 b7 h2 g7 Bd7 c7 Rh4 c8Q Be6 c6 Bc5 g5 Rh6 g6 Rh7 b5 Ne7 g8Q Nf5 b6 Bb3 g7 Be7 c7 Kf2 Qgd8 e3 g8R e2 Rg6 e1N Bb5 Nd7 b8B Nf6 b7 Bc2 Nc3 Nh5 Rb1 Ng2 Nf3 Nhg3 Qd6 Bf6 Qh8 Rh5 Kb6 a5 c8N a4 Na7 a3 Ba4 a2 Bc7 a1Q Ka6 Rd8 Ng5 Rh7 Qg4 d1B Qh5 Bg4 b8B Qb2 Bd2 Qc1 Rb6 Rg7 Re1 h1B Rh6 Rgg8 Rh7 Rge8 Rb4 Re5 Rb7 Rb5 Rb6 Rb2 Re8 Ngh4 Re5 Bg2 Re6 B2h3 Nce4+ Kf1 Qg6 Ng2 Qgg8 Kg1 Qe8 Kf1 Qb5+ Kg1 Nc5 Kf2 Nce4+
N1B1b2R/4p2R/K2b1n2/2Qkrnn1/B2rRP2/2QN1PqN/1B2Br2/1Q1r4 b - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 f5 cxd5 b5 a4 f4 axb5 f3 exf3 Bh3 f4 Bc8 Ke2 Kf7 Kd3 h5 Kc4 c5 b4 a5 g4 a4 d4 a3 g6+ Kf6 b6 h4 Kb5 h3 b7 c4 d6 Ke6 f3 c3 d5+ Kd7 g7 a2 g5 h2 g6 c2 Na3 Rh7 Be2 Na6 b8R Rh5 Nh3 Ra7 Qg1 Rh8 Nc4 Rh4 Bb2 c1N Ne5+ Ke8 Qc5 Rg4 Nd3 Nf6 g8B Kd7 g7 Nb3 Rae1 a1R Be6+ Ke8 g8B Ra2 Bf5 Bg7 d7+ Kf8 d6 Nc7+ Kb6 Rg5 b5 Nd4 Bb3 R7a4 Bbd1 Rb4 Ba4 Kf7 Ka5 Bh8 b6 Qg8 d8Q Bd7 b7 Be8 d7 Nce6 Ka6 Rc4 Bg4 Nf5 Qda5 Rd4 Qac3 Rh5 d8Q Ng5 Qdb6 Qg6 Qbb4 Ke6 Ra8 Bg7 b8N Bh8 Nd7 Bg7 Rhg1 h1R Nb6 Bh8 Rg2 Rf1 Rg3 Rf2 Rgg1 Ra1 Rh1 Rd1 Rb8 Qg8 Na8 Qg7 Qc2 Qg6 Qb1 Bg7 Qcc3 Kd5 Rc8 Nd7+ Qb6 Be5 Rh2 Nf6 Qbc5+ Ke6 Rb8 Bd6 Rd8 Bc6 Rh8 Be8 Qa7 Kd5 Rhh1 Ng7 Bc8 Nf5 Qac7 Nge4 Rh2 Qg3 Qa7 Ng5 Qb6 Bd7 Qbc5+ Ke6 Nb4 Ngh7 Bf1+ Ne3 Ng1 Re5 Nd3 Ng5 R2h7 Nf5 Nh3 Nh4 Q5b4 Nf5 Re4 Kd5 Be2 Be8 Qbc5+
6N1/NQ1P1b2/1B1R1qP1/2bnN1b1/pBRN4/1n2Q2K/1kr1BRQ1/b1r4n b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb4 d6 e5 f6 c5 f7 h5 f5 a5 f6 a4 d5 c4 d7 c3 d6 h4+ Kh3 c2 g4 Kb3 g6 e4 g7 e3 b6 e2 g5 e1B b7 Be7 f8N Bc3 f7 Na6 b8Q+ Qb6 g6 Qb5 Qb7 Rh7 Qdf3 Bg5 Bd2 c1B Qe3 Bf4 Qg2 Bh2 Be2 Nc5 Na3 Qb4 Nb5 Rh8 Na7 Bg3 Nf3 Be1 Ne5 Qd4 Ne6 Bf2 f8R Nf6 g8N Nd5 d8B Bd7 Rg1 Rc8 Rd1 Be8 d7 Bf7 Bb6 Kc2 b4 Nb3 b5 Kb2 Ra3 Qf4 Nd4 Qf6 Be1 B1d2 Raa1 Rc6 Rac1 Rh6 Qef3 Bg5 Qe3 Bg1 Nf5 Bd4 Bb4 Rc2 Rd2 Bc5 Nd4 Rh5 Rc8 Bf2 Rf1 Be1 Rd1 Bc3 Rf2 Rh8 Rc6 Rh6 Rd6 Rh7 Rc1 Rh8 Ne7 Rc8 Ng8 Rc6 B6a5 Rc7 b6 Rc8 b7 Rc7 Kg4 h3 b8Q h2 Bb6 h1N Qa8 Ka2 Qb8 Ba1 Qb7 Kb2 Kh3 Rd2 Rc6 Bd6 R1c5 Rd1 Rc4 Rc1 Rc3 Bf8 Re6 Rc4 Rc6 Bc5 Rd6 Rg1 Rd3 Rc2 Rc3 Rgc1 Rc4
2N5/QB1p4/N2Bn2B/Q2Rb1q1/1N1kn2r/rQ1P1P1Q/b4rr1/3nKR1R b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 b3 axb3 Qb6 b4 Qc7 b5 Qd8 c4 Kf7 h4 Kf6 f3 Ke5 h6 g5 h5 a5 b6 g4 f6 a4 b7 g3 c6 e6 h7 a3 c7 g2 f7 a2 c5 Qe8 c6 Ra3 h6 Kd4 Nc3 e5 Ba6 e4 d3 e3 Qb3 e2 Nd5 Bc5 f8B Qe4 Bd6 Qg4 Nh3 Qg5 Nhf4 Nf6 Nb4 Ne4 Nfd5 g1N Rb1 a1R Bcf4 Rg8 h8Q+ Rg7 h7 Nh3 Qe8 R1a2 h8Q Nhf2 Qd8 Nd1 Qh3 Rh7 Ra1 Rh4 Rf1 Qf6 Bh6 Qg5 Nb6 Rb2 Na4 Bb6 Nc5 Rc2 Bc4 Na6 b8Q Bb7 c8N Nc7 Bd5 Ne6 Qa7 Bc7 Rh1 Bb8 c7 Ba6 Bb7 Bc4 Ne7 Rd2 c8R Rc2 Qda5 Bd5 Qba4 Ba2 Qb3 Rd2 Rc6 Bc7 Nc8 Bb8 Bf4 Be5 Nca6+ N4c5 Qb8 Bh8 Bd6 Ne4 Rc5 Ne3 Qa7 Be5 Rac1 Rc2 Ra1 Nd2 Kf2 e1R Q5b6 Rg1 Rf1 Rg2+ Ke1 Ne4 Qb5 Nd1 Qa5 Rcf2 Rd5#
N2b2Q1/2P2Br1/n3B2K/1rbQRbR1/p1P1Rn1B/r4R1k/6q1/1b1NQ2N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 d5 Kf4 a5 c4 h5 b4 a4 g4 e6 c6 d4 b6 d3 b7 h4 f6 Kg6 c7 h3 f7 d2 b5 h2 b6 Ne7 Ne2 Qe8 Rg1 h1B Ng3 Rh5 Nc3 Nd7 b8R Ne5 b7 Bc6 Bh3 Ra6 Qe1 d1R Nh1 Rd5 Nd1 Bh6 f8Q Nf5 Qc5 Rd2 Qd5 Qg8 f3 B8d7 Re8 Rd3 b8N Ne3 Ra3 Bc8 Nd7 Bf8 Nb6 Nc2 Na8 Nb4 Ra2 Bc5 Re2 Rb3 Re4 Ra3 Be3 Rh7 Bf2 Ra5 Bh4 Rg7 Rg3 Na6 Rg1 Kh7 g6+ Kh6 g5+ Kh5 Bf5 Rb5 Rg4 Rh7 g7 B8d7 g6 Nd3+ Kg3 e5 f4 Bb7 Be6 Bbc8 f5 Nf4+ Qe3 Bc6 f6 B6d7 Bf7 Bf5 Be6 Bb7 f7 Bc8 f8R Bb7 Rd4 e4 Qc3 e3 Qe1 Bc8 Re4 Bd7 Bf7 Bc6 R8e5 e2+ Qc3 e1B+ Kf3 Qh8 g8B Qg7 Be6 Bd2 Bgf7 Qg8 Rg2 Rg7 Kg3 Bde3 Qe1 Be7 Kf3 Bd8 Rg4 Kh6 Rg5 Bc5+ Re3 Bb1 Kg4 Bd7 Re8 Qf8 Rf3 Qd6 Qde4 Qd2 Qd5 Bc8 Re4 Qg2+ Kf5 Rh7 g7 Bd7 g8Q Rg7 Rg6+ Kh5 Bf2 Qg3 Rg5+ Kh4 Re7 Kh3 Kf6+ Kg2 Ree5 Qg4 Bh4 Kh2 Re4 Qg2 Bg4 Bf5 Bh3 Bh7 Bd7 Bf5 Bc8 Rh7 Bd7 Rh6+ Kg7 Rg6+ Kh7 Rg7+ Kh6 Bc2 R7e5 Bb1 Rf1 Kh3 Bde6 Ng6 Rf2 Nf4 Rf3+
2rN1k2/3R2b1/8/3rn2Q/q1QRN1BR/1Q2KP2/Ppr1Q1bN/rBB1q1n1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 g5 h4 b5 d4 c5 f6 e5 d6 c4 a6 g4 d5 c3 a7 g3 f7+ Kd7 h6 c2 h5 e4 h7 b4 h6 g2 Nc3 b3 Rh4 e3 Ne4 b2 Nf3 g1Q Nh2 Qgg5 f3 Nc6 Bh3+ Qg4 Qd4 Qc7 Qc4 Bg7 f8Q Nge7 Qf7 Rd8 h8Q Qa5 h7 Qe1+ Kd3 e2 Ke3 Rb8 a8B Nd4 Qhf8 Ba6 h8Q Rbc8 Qhh5 Bb5 Q7g8 Nec6 Qf6 Ne5 Qb3 Qe6 Bg4 Qa5 Qc4 e1R+ Qe2 Qa4 Qf4 Rf8 Rb1 Rf5 Qgf7+ Kd8 d7 Rh1 Qg8+ Ke7 d8R Bc4 Bc6 Bd3 Be8 Rd1 Bg6 Bb5 Qd2 Bf1 Qe2 Bg2 Ra1 Nd3 Qb8 Ne5 Qb3 Rh1 Bd2 Re1 Rd1 c1R Bh7 R1c2 Bc1 Qg6 Qc4 Qge8 Qe6+ Kf8 d6 Rg5 d7 Rf1 Qb3 Rg1 Q2c4 Ne2 Rd4 Rh1 Qea6 Ng1 Qe2 Nc6 Qac4 Rd5 Bg6 Ne5 Nc3 Rd2 Bb1 Rc2 Ne4 Rc6 Ra8 Rc8 d8N Qe7 Ra6 Qeb4 Ra8 Qe1 Ra7 Qd1 Rd7 Nh3 Bd2 Rf1 Qbb5 Ng1 Qbb3 Rc1 Bc2 Ra1 Qed3 Rf2 Bc1 Rd2 Bb1 Rc2 Qf1 Qe1+ Qfe2
rb2NNBN/nK3Nq1/2B2b1k/1b5p/1Q1r3B/qR4P1/1QR2Pb1/2R2Qn1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kd3 Kg7 Ke4 e5 Kd5 h5 b4 a5 c4 e4 c6 e3 g6 d6 c7 a4 g3 a3 f6+ Kh6 g7 a2 b6 Nc6 f7 Ba6 c8N Nd4 b7 Nb5 Kc6 d5 b8Q d4 c5 d3 Nh3 d2 Ng5 e2 Nd6 e1B Na3 Qf6 Bg2 Qc3 Rb1 a1Q Rb3 Kg6 Ne8 Qe3 Nc4 Nf6 g8B Qa2 Ne5+ Kh6 Ng6 Bg7 f8N Qb2 Rg1 Rh7 Nh8 Ne4 Kb6 Nec3 Bc6 Na7 b5 Ne2 Kc7 Qa3 b6 Bd3 b7 Qd4 Bb2 Qg4 Bf6 Bb5 Qc1 d1B Qc4 Nc3 Qf1 Ne2 Kb6 Qd7 Qd6 Bc3 b8Q Qg4 Kb7 Be5 Qd4 Bc2 Qb2 Be4 Qd6 Bf3 Qdd2 Bb8 Qb4 Bg2 Be4 Nf4 c6 Bd6 c7 Qd7 Qd3 Ne2 Rc1 Ng1 Qf1 Qg4 c8R Bb8 Bd8 Bge5+ R8c7 Rd7 Bf6 Rd5 R7c2 Rd4 Be7 Bg7 Bc6 Bge5 Ngh7 Qg6 Bh4 Bf6 Ng5 Qg7+ Ngf7+
4N2R/K4n2/5r2/1Q1b2bp/Q1RQNP1R/1nNPB2r/q5Bk/1qBrB2r b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 h5 g4 a5 f4 e5 b4 a4 d6 a3 b6 a2 Kb5 c4 d3 c3 f6 Kg6 b7 c2 d7 e4 f7 e3 Nh3 e2 Bg2 e1Q Nc3 Qe3 Nf2 Qe4 Rh4 Qde7 Kb6 Rh6 d8Q Q7e5 b5 Qe7 Qd4 Qd5 Nfe4 Nc6 b8B Qb4 Ba7 Be7 f8B Be6 Kb7 Re8 b6 Bf7 Ka6 Bf6 b7 Qb1 b8Q Na5 Bb4 Nb3 Qb5 Qc4 Bac5 Bd5 Ka7 Re6 Ba5 Be7 Bcb6 Rf6 Bc5 Rh8 Bcb6 Nh6 Bc5 Re8 Bcb6 Kg7 g6 Nf7 Bb4 Kh6 g7 Kg6 g5 Kf5 g8N Bd8 g6 Be7 Bd2 c1R g7 Bd8 Qc2 Rh1 Be1 Rh3 Ba3 Rh1 Bc1 Re5 Nd2 Re3 Nde4 Reh3 Qd1 Rh6 Bc5 Bg5 Ngf6 Rg6 Ne8 Rf6 g8R Nd2 Qf2 Qbb4 Rb1 a1R+ Qda4 Qa2 Rh8 Qbb2 Qe3 Qc2 Rb4 Nb3 Ba3 Rd1 Qf2 Qcb1 Bc1 Rg3 Rh2 Kg4 Rc4 Rf3 B5e3 Rg3 B3d2 Rf3 Qd4 Re3 Nf2+ Kg3 Rh4 Rf3 Rg4+ Kh2 Nfe4 Rg3 Rh4+ Rh3 Be3
QqQR4/7R/1N3Rr1/q1pqb2q/2BPBBNP/1N1n4/1QRrnk2/1K3b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 g5 Kc2 f5 b4 a5 h4 c5 e4 f4 b6 g4 e6 Kd6 e5+ Ke7 b5 g3 b7 g2 h6 a4 h7 a3 b6 f3 Bc4 f2 Rh2 f1Q Qe2 a2 Bf4 Qe1 Nh3 g1Q Nd2 Bg7 Nf2 Nf6 Ng4 Rg8 h8R Qg2 Nb3 Nbd7 b8N Nh5 b7 Qea5 Rh7 Ng3 Rf1 a1Q Qf2 Q1c3+ Kb1 Qcf3 Qb2 Ne2 Rf2 Qe8 Rf1 Qgg3 Rhf2 Qh5 d6+ Ke8 e7 Qd5 Rh2 Kf7 e8B+ Ke6 Bg6 Bf6 Be4 Rg6 Rhf2 Bg7 Rc1 Bh8 Rc2 Bg7 Bf3 Kf5 e6 Ne5 e7 Nd3 e8Q Be5 Nd7 Qh2 b8Q Ba6 Bh1 Qg3 Rf3 Ke4 Qbc8 Rb8 Qf8 Rb4 Qg8 Ra4 Nb6 Ra2 d7 Bb5 Bd2 Qf4 Qh8 Qf8 Qa8 Qb8 Qc8 Ba6 d8R Bb5 Re3+ Kf4 Re4+ Kg3 Rf4 Ba6 Rf6 Bb5 Nh6 Ba6 Bf4+ Kf2 Be4 Bb5 Qc1 Ba6 Rc3 Rd2 Rc2 Bb5 Qa3 Bd7 Qa2 Bh3 Qb2 Bf1 Ng4+
q4Rb1/N1nBR3/N1Q3KB/BP2pPQr/1r1r4/kn2Q3/Q1qbR3/Nr6 b - - 0 1 illegal: No possible last move
2k2qBN/R4q1r/n1R3p1/1KQQ1b1r/1QPB4/b2q1QRn/1Pq1N3/NB6 b - - 0 1 illegal: No possible last move, all moves rejected
B4rQ1/R1N2qB1/QQ2NPPn/br6/1nNB4/1k1N1pqb/3n4/1n1RR2K b - - 0 1 illegal: No proof kernel
Rbqr1QNB/2qN1q2/3PR3/1B1QN1Rq/2n1bk2/nKR2Q2/1P3B1p/1r6 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 d4 Kd6 Kd2 a5 Kc3 h5 g4 e5 g6 c5 f6 c4 g7 h4 f7 h3 f5 e4 g5 h2 b6 a4 g6 e3 b7 e2 f6 e1Q+ Nd2 a3 Qf3 Ne7 g8R a2 g7 Na6 b8B+ Kd7 d6 Ke6 d7 Nc6 Be5 Qh4 Nb3 Nab4 Be3 Qh5 Re1 a1Q Bf2 Qc7 d8Q Bd6 f8Q Na5 f7 Bb7 Be2 Be4 Nc5+ Kd5 Nd7 Nc2 Bf6 Bf4 Bf1 Ke6 d5+ Kf5 Be5 Na3 Kb4 c3 Bb5 Nb7 Kb3 c2 Re3 c1Q Rc3 Nd6 Bed4 Ndc4 d6 Ra6 Qa8 Qf1 Be5 Qac1 Qd5 Rc6 Qg2 Ra6 Nf3 Be3 Bf6+ Kf4 Nfe5 Ba7 Qh3 Qfe2 Re1 Bb8 Qhd3 Qeg4 Qf1 Qe6 Qh1 Kf5 Qf3+ Qf4 Re2 Qe8 Ree3 Qec8 Qe7 Qc6 Nc5 Bd3 Qe8 Nb1 Ng4+ Kg6 Re2 Ra1 Re6 Nba3 Ne5+ Kf5 Qe7 Be4 Qe8 Q6c7 Qe7 Rb1 f8R Q8d7 Rc8 Ba7 Ra8 Qdc8 Ncd7 Bb8 Rf8 Qh3 Rf7 Re8 g8N Qh5 Qf8 Rd8 Bh8+ Kg5 Rh7 Qff7 Rg7+ Qhg6 Qfd3 Kf4 Qe2 Qg4 Rg5 Qh5 Qf3+
N6r/n1BbR2k/P1Q1b3/1NBq4/2r4q/1B2QRN1/K2bPp2/b2RnQ1Q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a4 g5 d4 b5 Kd2 c5 Kc2 f5 Kb2 Kf7 h4 Kg7 h6+ Kg6 h5+ Kh7 e6 b4 e7 b3 e8R c4 a6 g4 d6 g3 d7 f4 a5 g2 d5 f3 a7 f2 d6 Na6 Be3 Nb8 a6 Qb6 d8B Ne7 d7 Nf5 Bc7 Bc5 d8Q Nh4 Q8d6 Bb4 Nf3 g1B Bc5 Qb7 Nh2 Ng6 Bg2 Ne5 Na3 Bd7 Nb5 Nbc6 Ra3 Nf3 Nf1 Bd2 Ng3 Ne1 Bd5 Rc8 a8N Na7 Qc6 c3+ Kb1 b2 Bb3 c2+ Ka2 Bh2 Qa1 Nd3 Rd1 c1Q Qb1 Qc4 Qc1 Rf8 Qc3 Ne1 Qe3 Kh8 h7 b1B+ Kb2 Bbf5 Ka2 Kg7 h8Q+ Kf7 h6 Bfe6 h7 Kg6 Qg2 Qh4 Qhc3 Qd5 h8Q Rf4 Qc1 Rc4 Qf1 Rd8 Qf6+ Kh7 Qff3 Rc8 Q3h1 Rb8 Nh5 Be5 Ng3 Ba1 Qcc3 Bf7 Qf6 Rc8 Qc6 Bfe6 Ra4 Rc3 Rf4 Rc4 Rf3 Kg6 Re7 Rh8 Re8 Kh7 Re7+
BK5Q/1Br1n2P/b1prRb2/1k2QBNq/2b1PNq1/2R5/2bQ1R2/3nB2N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 f5 Kf4 b5 h4 g6 d4 c6 a4 b4 e4 b3 h6 b2 e6+ Kc7 Ke5 g5 d6+ Kb7 d5 g4 a6+ Kb6 d7 f4 h7 g3 a7 f3 a5+ Kc5 a6 g2 h5 f2 h6 Kb6 e7 Qc7+ d6 Kc5 e8R Ne7 d8Q Nf5 Qf6 Bb7 Rh3 Qd8 d7 Nh4 Nc3 b1B Re6 Qe7 d8N Rg8 h8Q Qd7 h7 Qd2 Nf3 g1Q Ne2 Qg4 Ng3 Ng2 Ng5 Rg7 Nh1 Qa5 Qd2 Bc2 Ra2 Rc7 Re3 Bg7 Rc3+ Kb6+ Kd6 Ne3 Bh3 f1B Qe5 Nd7 Bb2 Rb8 a8B Nd1 a7 Bba6 Bb7 Nf8 a8B Ng6 Ba3 Bfc4 Bb4 Bf6 Rb2 Qe2 Bf5 Qg4 Ra2 Rg7 Rb2 Ne7 Kd7 Qc5 Ra2 Kb5 Kc7 Nb2 Nh3 Qd5 Nf7 Rd8 Nf4 Rd6 Kb8 Nd1 Rb2 Nc8 Ng5 Rc7 Ra2 Ne7 Ra1 Ne3 Rf1 Nd1 Rf2 Qh5 Qe1 Kb6 Bh3 Qd2 Ra3 Qc3 Bf5 Qg3 Qe2 Qgg4 Be1 B4d3 Rc3 Bdc4 Nd5+ Ka5 Qd2 Kb5 Nf4+
3NrN2/1QQ3Qp/3RRP1r/B1bq1RnP/Bq4nk/1bN5/1Bn5/2KnN3 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 Ke7 h4 g5 f4 d5 e4 a5 c4 g4 e6 Kf6 h5 d4 c6 d3 e7 a4 e8R g3 c5 g2 b6 a3 c7 a2 c6 Qd5 e5+ Kf7 e6+ Kf6 b7 Qd4 e7 Qd6 Nc3 Ra4 Qg4 Be6 c8Q Qd5 c7 Qd6 Bb2 Qc5 Rd1 a1N Kc1 Qb5 Nf3 g1Q Ne1 Nd7 b8B Qd5 Qb7 Qa5 c8Q Qg2 Bc7 Qad5 Ba5 Qge4 Qcc7 Nc2 Be2 Nh6 Rf1 Ne5 Qg1 Kf7 f6 Nhg4 f5 Nf3 Rd2 Qf4 Bd1 Ng5 Rf2 Qb4 Rf3 Kg8 f7+ Kg7 f6+ Kh6 Rf5 Rg8 Rb8 Rg6 e8N Bc5 f8N Bg8 Re2 Ra2 Ng7 d2+ Kb1 Ra4 Rd8 Ra3 Nge6 Ra4 Bb6 Ra8 Rd6 Re8 Nd8 Bf7 Ree6 Bg8 Be2 d1N Bb5 Ne4 Na4 Qe5 Qcc8 Nh2 Re7 Bb3 Nc3 Qd5 Qcc7 Rg4 Rf4 Kg5 Rf5+ Kh4 Ree6 Rg6 Ba5 Rh6 Qgg7 Ng5 Kc1 Ng4 Ba4
q1bnB3/Qn2bqPp/2QrN3/2N3k1/4B1rN/4P2R/4RB1b/1RKbQ1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 d4 c5 Kd2 f5 g4 a5 d6+ Kf7 d7 Kg6 d5 c4 e6 a4 d6 f4 e7 a3 e8B+ Kg7 b6 f3 g6 Kf6 g7 f2 b5 a2 b7 Qa5+ Nc3 Qa4 d8N Qa5 d7 Qc7 b6 Nh6 g8R Ra3 g5+ Kf5 g6 Kf4 g7 Bd6 Qe1 Nc6 b8Q Kf5 b7 Kg5 Qa7 Be5 b8Q Na5 Rb1 a1Q Qbb7 Nf7 Bg2 f1B Qc6 Bh2 Na4 Nb7 Nc5 Ra4 Be4 c3+ Kd1+ Qf4 Be3 c2+ Kc1 Bg2 Rf8 Bf3 Rg8 Bg3 Rh3 Bh2 Qd2 Rb4 Bf2 Qa2 Rf8 Bg4 e3 Bd1 Qe2 Qb8 Qe1 Qa8 Nde6+ Kg4 Rg8 Nfd8 Nf3 Qb3 Bg1 Qc4 Neg5 Qf7 Nge6 Ra4 Nh4 Rd4 Nc7 Kg5 Rf8 Ra4 Bd3 Rg4 Be4 Qd5 Rf2 Qf7 Re2 Rg8 Kb2 c1B+ Ka1 Bd2 Kb2 Bb4 Kc1 Rf8 N7e6+ Kh6 Na4 Be7 Nac5 Qf4 Kb2 Rf6 Kc1 Rfg6 Nf8 Rd6 Nfe6 Nf7 d8B Qf3 Bb6 Nfd8 Ba5 Qf7 Bc3 Kh5 Be5 Kh6 Bg3 Kh5 B3f2 Kh6 Nd4 Kg5 Nde6+
1B1RR3/N2N3b/R1N1Rp2/4rPPB/rQn1bK2/1qQ4B/1k3br1/4q1Qq b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Nd7 exd7 Kg6 Ne2 Bg7 Ng1 Bf8 Kd2 Kf5 Ke3 Ke5 g4 c5 b4 h5 g6 a5 g5 a4 b6 h4 g7 h3 b7 h2 b8N c4 b5 f6 b6 c3 b7 c2 Na3 Ra5 Bh3 Nh6 g8B Nf7 Ne2 Qb6+ Nd4 Qb3+ Qd3 e6 Re1 h1B d8R Be4 d7 Nd6 Nab5 a3 Qc3 a2 Na7 Bh7 Re8 Nc4+ Kf3+ Be4+ Kg4 Bc5 d8Q Ra4 Ba3 c1R d6 Rc2 f4+ Kd5 Bh7 e5+ d7 Rh2 Ndc6 Bf2 Re6 Re8 Bd6 Re7 Qc7 Rg2+ Qg3 Re8 d8R Bd7 Bg8 Bh7 f5 e4 Be5 e3 Bf7 e2 Kf4 Re7 Bh5 Re8 Reb1 e1Q Qb6 Re7 Qc3 Qh1 Rf1 Re8 Rae1 a1Q Bd6 Bc8 Nd7 Re7 b8Q Bb7 R1e2 Qe1 Qbe3 Ba8 Qbb4 Re8 Bb8 Re7 Re4 Re5 Qg3 Bb7 Qh2 Ba8 Qg1 Re6 Be5 Ra3 Na5 Qd2+ Qe3 Bc6 Rc1 Qe1 Bb8 Ba8 Qf3 Re8 Re7+ Kd4 Ra1 Bd5 Qg3 Bf3 N5c6+ Kd3 R2e3+ Kc2 R3e5 Be4 Qf3 Ra5 Qd3+ Kb2 Ra3 Rb5 Ra6 Ra5 Qf3 Ra4 Qd3 Rg8 Qe3 Rg7 Ree8 Re7 Qec3+ Ka2 Rd5 Re5 Rd6 Kb1 Rde6 Ka2 Qf3 Kb2 Qfc3+
4QR1N/P6K/kp4n1/qrBRn3/2NR1Qr1/2QqBB2/1Pqr3n/Q2N3b b - - 0 1 illegal: No proof kernel
1Rq1rR1N/5Bqk/2bB2n1/KB2QNr1/1rpN4/Q1P2nPq/4rQRR/8 b - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 g4 b3 axb3 Bc5 b4 Be3 b5 Bf4 Bg2 Ne7 Bf1 Bg3 fxg3 Ng8 Kd2 Kf8 Kc3 Kg7 Kb4 d5 e4 h5 e6 f5 b6 c5+ Ka5 h4 b4 a6 c3 h3 b5 f4 e7 f3 e8Q h2 e5 f2 g6 d4 g5 d3 e6 d2 e7 Bd7 Qa4 d1Q Nh3 Bg4 Ra2 Bf5 Nf4 Rh3 Qa3 Bd7 Nd2 Qh5 Nb3 Qh6 Nd4 Qc8 b7 Rh4 b6 Bc6 Bb5 f1R Rg2 Nd7 b8R Ne5 b7 Re1 Qf8+ Kh8 e8Q Nf3 g7+ Kh7 Qf6 Ne7 g8N Qg7 Ng6 Re2 Nh8 Ng6 Qee5 c4 Nh6 Rh5 Rhg1 h1Q Rh2 Qg2 Nhf5 Qf1 Bf4 Qh3 Kb6 a5 Rgg2 a4 Qf7 Qg8 Rf8 Re8 Qff6 Qe6 b8R Qed7 Ka5 Qc8 Qa2 a3 Qfe7 Re1 Qf2 a2 Qa3 a1R Qd5 Ngh4 Bd6 R1e2 Qe5 Rh1 Rf6 Rb1 g6+ Kg8 Rf7 Rb4 Rf6 Rg5 Rf7 Qf8 g7 Ng6 Rf6 Qe7 Rf8+ Kh7 Nh4 Kh6 g8B Qg7 Bf7 Kh7 Nhf5
q1qb2Q1/2QR1B2/2N1N1Rr/BQ2K1pk/P7/2RrNbPR/2q1rrnB/8 b - - 0 1 illegal: No possible last move
2B1B3/kN3bR1/1q2b2K/b1pb1r1R/2rQ4/PNQ2r1r/2PB1Q1n/N1RN4 b - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 a5 fxg5 a4 h4 a3 bxa3 Ne7 a4 Ng8 a5 Bg7 Nc3 Bh6 Nb1 Bf8 g4 Bh6 g6 Bg7 h5 Bf8 g5 Nc6 h6 Nce7 Nh3 Nf5 Ng1 Ng7 hxg7 Qe7 Bf4 Qf6 Bc1 Qd8 Kf2 f5 Ke3 d5 Kf4 Kd7 e4 Kc6 a6 Kb6 a3 c5 a7 h5 e6 h4 e7 d4 e8B h3 e5 h2 e6 d3 e7 d2 Ba6 Rb8 a8N+ Ka7 Nb6 Qd7 Na4 b5 Ne2 b4 Nac3 b3 Nd4 b2 Nb3 Nf6 g8Q Rh3 g7 Qc6 g6 Qb6 Kg5 f4 Qh8 f3 g8Q f2 g7 f1R Qf7 Be6 g8R Ng4 Rg7 Rff3 Bc8 Rb7 Qg1 d1B N1d2 b1R Qd4 Be2 Qff6 B2c4 Nd1 Rd7 Kg6 Rd5 Qf2 Rdf5 Qc3 Rb2 Rb1 Bcd5 Na1 Rb4 Ndb3 Rc4 Qhh4 Bf7+ Kh7 Bde6 Bd2 Qc6 Rc1 Qb6 Rg5 Bh6 Rg7 Bf4 Qfd4 Bc7 Qf2 Ne3 Kh6 Nf1 Qfd4 Bh5 Qhf2 Bd8 Rhg1 h1B R1g5 Bhf7+ Rh5 Bc7 Bed7 Nh2 e8N Qa6 Bb5 Ba5 Nd6 Qb6 Bbd7 Rd3 Bc6 Bhd5 Be8 Rdf3 Nb7
1Kn1r2N/r1Q1n1B1/2R2Q1R/3Q3B/kNr5/Q1p1pBPb/3N1bP1/2bq3R b - - 0 1 illegal: No proof kernel
8/1kN1Nb2/1nQB1r2/1b3r1P/1p1n3B/QR1pPR2/K1B1Q1NR/3n1qbB b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 b5 Kc3 g5 Kb3 d5 h4 Kd7 c4 Kc6 a4 f5 h6 b4 h5 f4 h7 f3 a6 f2 a5 g4 e6 g3 a7 g2 a6 d4 e7 Kc7 e8R Qe7 c6 Qe6 Ka2 Bg7 Na3 Qe4 c5 Bg4 Bg5 Bf5 e3 Qf3 Rh2 Nh6 Bd3 f1B Qe2 Nd7 Bh4 Ng4 Nh3 g1N Nf4 Qh3 Bc2 d3 Rf8 Qg3 Rb1 Qh3 Rb3 Nf3 Ng2 Nb6 Rf6 Rab8 a8B Be6 a7 Nd4 Rf3 Rhf8 h8B Rf5 Nb5+ Kc8 c7 Nf2 Bc6 Bf7 a8Q Nd1 Qa3 Be5 Bd5 Bg3 Be5 Bf2 Bd6 Bg1 Be4 Ra8 Bd5 Ra5 Bc6 Rf6 Bb7+ Kd7 c8N Qf5 c6+ Kd8 Nf4 Bg2 Nc7 Qh3 Ne7 Raf5 Rf1 Bgd5 Rf3 Qf1 Ng2 Bc4 Na8 Bb5 c7+ Kd7 Bc6+ Ke6 c8Q+ Nd7 Qca6 Nb6 Be4 Kd7 Nc7 Kd8 Qa8+ Kd7 Qc6+ Kd8 Ng6 Kc8 Ne7+ Kb8 Rg3 Na4 Nf4 Nb6 Bh1 Na8 Rf3 Nb6 Qc5 Kb7 Ng2 Bbe8 Qc3 Bb5 Qc6+
2bR4/1n2n2k/1B4q1/1Kp2BR1/1BrP2n1/Qpr3NP/B1N2b1R/b2QN2Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kd3 b5 a4 g5 f4 Kg7 h6+ Kh7 f6 e5 f5 b4 Kc4 e4 a6 e3 a7 e2 f7 e1B d6 c6 a5 g4 a6 g3 f6 g2 h3 Qe7 d7 Bb7 d8R Bg3 Ra5 Qc7 Rg5 Be1 Ne2 g1N Ng3 Qe5 Rh2 Qa5 Na3 Bc8 Bd3+ Bf5 Nc2 Bg7 f8Q Be4 f7 Bg6 Bf5 Ba1 d4 Qb6 Bf4 Nd7 Bc7 Rb8 a8Q Ne7 a7 Bf2 Qb7 Nc5 a8B Nd5 Qd6 Nf3 f8B Rc8 Be7 Re8 Bf8 Re3 Qe7+ Kh8 h7 Rd3 Qe3 Ne7 Qec1 Be8 Qa7 Nb7 Qaa3 Bd7 Qh1 Qa7 Bb6 b3 Qcd1 Rc3+ Kb4 Qb8 Ka4 Ng6 Bb4+ Kg7 h8N Kh7 Nf7 Qd6 Ne5 Rc7 B6a5 Bc8 Nd3 Ne5 Nde1 Ng4 Bb6 Qf6 Be6 Ne7 Bd7 c5 Kb5 Qg6 Bf5 Rc6 B6a5 Ra6 Bb6 Na5 Bae4 Nb7 Ne3 Ra4 Bb1 Ra7 Ba2 Ra4 B4a5 Rac4 N3c2 Be3 Bb4 Bg1 Qd3 Bf2 Qd1
nq3r2/1b2bRKR/1RpBN2Q/1B1n1r2/PB1N4/2rP1QN1/p1b5/k3Q1N1 b - - 0 1 illegal: No proof kernel
2n1Q1BR/Nr2Q3/p3pBRR/1b1n1R1n/2Nr1b1K/P7/q1B1QPN1/2b4k b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 d4 Kf7 h4 Kf6 d6 b5 a3 g5 h6 b4 d7 g4 c6 g3 h7 a6 h5 g2 d5 Ke5 d6 Ke4 h6 b3 c7 b2 f6 Nc6 f7 Ra7 Qe2+ Kf5 Bg5 Qe8 d8Q Bg7 f8R+ Bf6 d7 Nb4 Nd2 b1N Ngf3 Kg4 Nc4 Bg7 Rf5 g1B Bf6 Nc3 Rd1 Ne4 Rd6 Bb7 c8B Ng3 Nh4+ Bf3 Ng2 Qf7 Qf8 Bh2 d8N Kh3 Nc6 Nh5 Be6 Rb7 Na7 Bc6 Kd2 Ba4 Ke3 Nd5+ Kf3 Bb5 Rg1 Be5 Qd8 Kh2 Kg4 Bf4 Kh4 Nb6 Bd5 Nc8 Be4 Bc1 Bc2 Qd5 Nf4 Qe6 Rg6 Kh1 Ng2 Qd5 Nb2 Qa2 Nc4 Bf8 Bg5 Rb8 Rge6 Ng7 Nb6 Qc4+ Qg4 Bb2 Rf7 Qd4 Bc4 Qd5 Qe2 Nf6 Qc7 Rg8 h8Q Bc1 h7 Ngh5 Ba2 Bh6 Qb7 Rd8 Qe8 Qc5 h8R Qc4+ Qbe4 Rb7 Rff8 Nh7 Rf5 N7f6 Rc6 Rd4 Red6 Qc3 Bg8 Qb3 Nc4 Nd5 Re6 Qa2 Rcd6 Bg7 Reh6 Be5 Rdg6 Bef4 Qe5 e6 Qc7 Nb4 Qce7 Nd5 Bf6
1B2k3/2p1Q1Rr/Kb1p3R/n1QP1Q2/q1n1RN2/b1P2BNB/1B2r1b1/5Nr1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 Ke2 h5 Kd3 e5 Kc4 a5 f4 h4 d4 h3 g4 e4 b4 h2 b6 e3 Kb5 d6 g6 a4 g7 e2 c3 e1B b7 a3 g5 a2 f6 Be7 f5 Bf8 g6 Ra6 f7+ Ke7 f6+ Kd7 Nd2 Nc6 b8B Ra8 Bb2 Rh6 Ne2 Ra7 Ng3 Ra4 Qh5 Ra7 Qh4 Ne5 Bh3+ Ng4 Ndf1 Bf2 Re1 a1Q Re4 Ne7 g8B Be1 g7 Rh8 d5 Bd2 Bh7 Ra2 g8R Bg7 f8Q Nc6 f7 Bd4 Rg7 Bb6 Bg6 Bg5 Bh5 Qe8 Re5 Qe6 Re4 Nge5 Be2 Na5 Bf3 Bb7 Qc8+ Ke7 f8N+ Qf7 Qcg4 Ke8 Qe6+ Qe7 Qf5 Nec4 Ng6 Bc1 Nf4 Bc6+ Ka6 Rh7 b5 Bd7 Ba3 Re2 Bb2 Ba7 b6 Qa4 b7 Bb6 Ba7 Be6 b8Q+ Bc8+ Qb7 Be6 Qc6+ Bd7 Ba1 Ba3 Qc5 Be6 Bb8 Bd7 Rg1 h1R Bb2 Be6 Ngh5 Bd7 R1g6 Rg1 Rh6 Re1 Bd1 Re2 Nhg3 Be6 Qe5 Bg4 Qeg5 Bf3 Qf5 Rc2 Be2 Bg2 Bf3 Re2 Qxe7#
k2N4/1p1rBP2/3bB1r1/Br2b1NN/p1Qnq2P/4QR1B/KQn2R2/3bR3 b - - 0 1 illegal: No proof kernel
1rRnnK2/P3N1pk/3Q1QBr/2p1Bb2/Q3b1qR/PN2bR2/N6r/1B2Q3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 b5 Ke3 f5 Kd4 Kf7 e4 c6 h4 f4 a6 f3 e6+ Kf6 a3 f2 a7 b4 e7 b3 Kc5 b2 d4 Bf5 e5+ Kf7 d6 Bc2 e8B+ Ke6 h6 Kf5 h5 Qc8 h7 Qe6 d5 Ba4 h6 Be7 Nd2 b1R Bg6+ Kg5 Rh4 Qh3 e6 Qf3 Nb3+ Qf4 Ne2 Rb2 Qe1 Nf6 Nc3 Qd2 Bfd3 f1B Bb1 Qf4 Na2 Re2 Bb2 Qf3 Be5 Rc8 h8N Qg2 h7 Bf8 e7 Rd2 d7 Qg4 Kd6 Bg2 d8Q Be4 Qb6 Rh2 Qa6 Qg3 Ke6 c5 Kf7 Nc6 e8Q Rcb8 d6 Be7 d7 Qg4 d8Q Rb6 Qdd3 Rab8 Qd6 Bb5 Qf8 Ne8 Qa4 Bbd3 Kg8 Bd8 Qf3 Bc7 Kf8 Nd8 Qf7 Qh5 Qff6+ Kh6 Nac1 Ra6 Ra2 Bf5 Rf2 Bde4 Rf3 Ba5 Na2 Bd2 Rc3 Bf4 Rf3 Be3 Bf7+ Bg6 Qde6 Rc8 Ke7 Nb7 Qff5 Rb8 Qed7 Rf6 Qd6 Nc7 Qfe6 Bgf5 Ng6 Kg5 h8R Qg4 Rc8 Nd8 Kf8 Ne8 Ne7 Rh6 Bc2 Rh5 Bg6 Kh6 Rhh3 Rh4 Bb1 Rh5 Qf6 Rh4 Bh5+ Kh7 Bf7 Rh5 Rh4 Rh6 Bg6+
5b2/pRrRpQk1/BnbB4/NP1r2P1/r1RNq1Q1/2nNn2B/B4Q2/2K5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 c4 d5 f4 h5 g4 h4 b4 h3 b6 d4 b7 h2 f6 d3 g6+ Ke8 c6 Bh6 f7+ Kf8 c5 Bg7 c7 Nh6 f5 Qd5 c6 Na6 b8N Be5 g5 Qg2+ Ne2 Qe4 Nd7+ Kg7 Bh3 Qd4 Nc5 Kf8 Ba3 Bb7 c8R+ Kg7 c7 Qg1 Kc1 Re8 f6+ Kh8 g7+ Kh7 f8Q Qd4 f7 Nb8 Nd2 Qe4 Rb1 Nd7 Nd4 Bc6 Qg4 Nf5 N2b3 Nb6 Na5 Ne3 Rd1 h1R g8B+ Kh8 Rb3 Rd8 Qe8 Rf1 f8Q Rd5 Qf2 Bg7 Be6+ Bf8 Qef7 Rb8 Rb2 Rb7 Rb1 Re5 Ba2 Rf5 b5 Rh1 Rb8 Rd5 c8B Rc7 Rb7 Rh2 Rb4 d2+ Kb2 Rh1 Rc4 Re1 Nd3 Rf1 Re1 d1N+ Kc1 Nc3 Rd1 Re1 Bd6 Re2 Bb1 Ra2 Rd2 Ra3 Ba2 Ra4 Rb8 Be8 Ba6 Bc6 Rb7 Bh6 Nf4 Na8 Nc2 Rd4 Bc5 Bf8 Rd1 Rdd7 Rd6 Nb6 Nd3 Rd8 Nd4 Rdd7 Rg6 Rd5 Rd6 Qh7 Rd7 Qe4 Q7f6+ Kg8 Bd6 Kh7 Qfe6 Kg7 Qef7+
2Q1N2b/4R2n/1K3NB1/1Rnq4/2p2q2/1NBQQP2/1bP1r2p/rBqB2Rk b - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 g5 a4 f5 axb5 Bb7 h3 Bf3 gxf5 g4 Nd2 g3 Nb1 Bg4 hxg4 Qg5 Rh5 Qe7 Rh1 Qd8 Kd2 Ke7 Ke3 c5 b4 d5 e6 Kd6 e7 Ke5 e8B h5 f6 a5 g5 h4 g6 a4 b6 g2 b5 h3 b7 h2 g7 a3 f3 a2 b6 Ra5 f7 Qf6 Nh3 g1B+ Nf2 Qg6 Bb2+ Kf5 Nd2 Ra4 Nb3 Qg2 Bc3 Nc6 b8Q Nb4 b7 Ra8 Qa7 Nf6 b8R Nh7 Rb5 Qg3 Qd2 Be7 Re1 a1Q f8Q+ Kg5 Bg6 Kh4 Bb2 Na6 Qc8 Qa3 Bc3 d4+ Ke4 d3 Kd5 Qe5+ Kc6 Kg3 e4 Qc1 Ng4 Bd4 Be2 Qf4 e5 Kg2 e6 Re8 Qad7 Bf8 e7 Bf6 Qd4 Be5 Qd1 d2 Kb6 Bf6 g8B B6g7 Na1 Bh8 Ba2 c4 Bb1 Ra7 Nb3 Ra8 Bb2 Bfg7 Ba1 Be5 Nf6 Nc5 Bb2 Ra1 Qe4 Rd8 e8N Rd7 Bd4 Re7 Rhf1 Qa3 Qc1 d1Q Qef5 Qa8 Qd3 Qd5 Bb2 Bc3 Qcd2 Qc1 Bd1+ Re2 Rh1 Rf2 Re7 Re2 Q2e3 Be5 Ba3 Bc3 Bb4 Bb2 Rf1 Ne6 Bc3 Nc5 Rf2+ Kg1 Rg2+ Kh1 Rg1+
2Q1nRr1/2BRNN2/KN2rq2/QB1bbB1p/6n1/2P2P2/pr3k2/BQR3q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 h5 b4 a5 g4 e4 c3 a4 f3 d6 c6 e3 b6 e2 Kb5 e1R c7 a3 g6+ Kf6 g7 Ke5 f6 d5 b7 d4 g5 a2 g6 d3 f7 d2 Na3 Kf4 Qa4 Ke3 Bb2 d1Q Qa5 Q8d2 Nh3 Q1e2+ Nc4+ Kd3 Rc1 Ra7 Nb6 Nd7 b8Q Ra6 Ng5 Qe3 Ba1 Ne7 g8Q Nf6 g7 Be6 c8B Nc6 Qb7 Be7 f8R Ne5 Nf7 Bd6 Bd7 Bd5 Bf5+ Ne4 Qc8 Qg1 Qh7 Ng4 g8N Be5 Ne7 Rg8 Rh4 Ra7 Rh2 Rd7 Ka6 Ke3+ b5 Nef6 Rf2 Qd1 Rd2 Rb7 Rd4 Kf2 B1d3 Bb3 Rd7 Bd5 Bfe4 Bh2 Na8 Nh6 b6 Ne8 Qg6 Rb8 b7 Ng4 Qgb6+ Re3 Qb1 Qe2 Bf5 Re6+ Kb5 Bd6 Ka6 Qe5 Bf1 Qf6 Bc4 Re2 Bcd3 Rb2 Bb5 Be5+ Qc6 Rc8 b8B Rc7 Nb6 Rc8 Qb7 Rc6 Qc8 Re6 Bc7
R2BRN2/1kb2BR1/2r3q1/qb5p/1NPpP2Q/1R2NQ2/2K1nr2/Bn3Q1q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 h5 g4 f5 e4 a5 b4 d5 g6 Kd7 b6 Kc6 g7 d4 g5 f4 b7 a4 b5+ Kc7 b6+ Kc6 e6 f3 e7 a3 e8R a2 g6 f2 Bc4 f1Q Bf7 Bh3 c4 Qf2+ Ne2 Bg2 Rh3 Qe1+ Kc2 Nh6 g8Q Qd7 g7 Be7 Bb2 Qd5 Nf4 Qg1 Ne6 Bf3 Na3 Bf6 Nf8 Na6 b8N+ Kb7 Nc6 Nc7 Qf1 Nf5 Nb4 Bg4 Rb3 Ng3 Bc3 Rc8 c6+ Ka8 Qf3 Nb5 c7 Be5 b7+ Ka7 b8B+ Kb7 Qh7 Bd7 g8R Ne2 Qhf5 Qg6 Rg7 Rh6 Bb2 Nbc3 Ba7 Ba4 Bb6 Nb1 Qf6 Qa5 Qh4 Rb8 Bc3 Bb5 c8Q+ Ka8 Qf1 Bc7 Qcg4 Kb7 Qgf3 Rd8 Kd1 Rd5 Nac2 Rf5 Ne3 Rf6 Kc2 Rf5 Q3g2 Rf2 Qgg4 Qh7 Qf3 Rc6 Bc5 Qf5 Be7 Qg6 Bd8 Nd2 Rab1 a1Q R1b2 Qe1 Ra2 Nb1 Ba1 Rb6 Q1g2 Qh1 Qf1 Rc6 Ra4 Qb6 Ra6 Qa5 Ra8
R2K1NnB/R5q1/b6b/3N1pB1/NP3Pn1/rQ1Qp1n1/1q5r/2kNRBQ1 b - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 d5 exd5 c5 b3 b4 a3 c4 axb4 Bd7 bxc4 Bc8 Ke2 Kd7 Kf3 Kd6 Kf4 f5 Kg5 Ke5 h4 Ke4 d4 a5 c5 a4 c4 a3 d6 a2 d5 g6 h6 Nf6 c6 e5 h5 Qe7 c7 Bg7 h7 Qe6 c5 Ra5 c6 Rb5 h6 Ba6 c8N Rb7 c7 Nfd7 Ne2 Qe8 Qb3 Rf8 h8R Rb6 h7 Qf7 Nbc3+ Kd3 Ne7 e4 c8Q Ne5 d7 Nbc6 d8Q Ng4 d6 Qg8 Ned5 Ne7 Bf4 e3 d7 Kd2 Na4 Rf7 Re1 a1Q Nec3 Qb2 Nd1 Rb7 Qcc4 Ra7 Qcd3+ Kc1 Qa8 Bf8 d8N Qgg7 Ne6 Ng8 f3 Rfc7 Qb8 Rc2 Qe5 Qb1 Qa1 Rh2 Rg1 Ra8 Rg2 Ra7 Ra2 Ra8 Bd6 Ra7 f4 Ra8 Be7 Ra7 Qad4 Qb2 Q4e4 Ra8 Qg2 Bc4 Qg1 Nf2 Bf6 Ne7 Qg3 Qf7 Nab6 Ra5 Bh3 Bh6+ Kh4 Qg7 Ra8 Ng8 h8B g5+ Kh5 g4 Bg5 Bb5 Nf8 Ra6 Qg2 g3 Qh1 g2 Qhf1 Qge5 Kg6 g1N Kf7 Ne2 Qg1 Ng3 Bf1 Ng4 Ra3 Bc4 Ra5 Qg7+ Ke8 Ra7 Kd8 Ra6 Rb5 Ra3 Rba5 Bb5 R5a7 Ba6 Na4
Bb1QQ2B/N3Q3/RnR3q1/3Bp1nR/N1r5/p2BP1rn/b6P/k3KNq1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 g5 f4 h4 fxg5 h3 Qc2 Qd7 Qh7 Qd8 Nxh3 Nd7 Ng1 Nb8 d4 Kd7 g4 Kd6 b4 a5 g6 c5 g7 f5 b6 c4 e3 a4 b5 e6 g5 f4 g6 f3 b7 c3 b6 c2 Bb2 c1N Ne2 Be7 Ng3 Qe8 Nc3 Bh4 Bd3 Nf6 g8B Ne4 g7 Bd8 Nf1 Nd7 b8N Ng5 b7 Qg6 Nc6 Ne2 b8Q+ Bc7 Na7 Nf4 Qb5 Nb6 Qe8 Bb8 Rg1 Ne4 Rg5 Nh3 Rh5 Neg5 Rc1 a3 Na4 Ba6 Bf7 Rf8 g8B Bc4 Ba1 Ba2 Bc3 Kc7 d6+ Kb7 d7 f2+ Kd2 Kc7 d5 Kd6 Bh8 e5 Be6 Rf7 d8R+ Rd7 Rdc8 Rc7 Rc5 Rc6 Ra5 Rc3 Ra6 Rc4 Ng3 f1Q Bef7 Qf3 Ke1 Qh1+ Nf1 Qg2 Be6 Qg1 Bef5 Qf6 Bfe4 Qg6 Nc6 Ra7 Bg2 Rf7 Na7 Rf3 Qhf7 Rg3 Bf3 Rd4 Rc3 Rc4 Qf6+ Kc7 Qfe7+ Nd7 Rd6 Rc6 Nb2 Kb6 Na4+ Ka5 Bg2 Rc5 Ra6+ Kb4 d6 Nb6 Ba8 Rc8 Rc4+ Kb3 d7 Rc6 d8Q Rc8 Nc3 Kb2 Bgd5 Ka1 Na4 Rc5 Re4 Rc3 Rc4 Rc2 Rc5 Rc4 Rc6
n1rb1qR1/n1QB2q1/3qb3/PQQ2pp1/2BN2N1/R2KB3/3PQ2R/3k1rN1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Ke7 Ke2 g5 h4 f5 a4 c5 h6 b5 d6+ Ke6 a6 b4 a7 c4 d7 c3 a5 b3 h7 c2 h5 b2 h6 Na6 Kd3 Qe7 d8Q Qa3+ Nc3 b1Q Bb2 Bb7 Qc7 Bc6 Rh2 Ne7 Qe2 Rg8 h8Q Rg7 h7 Rc8 a8B Bd5 Bc6 Qd6 Ra3 Qa1 Nb5 c1Q Bd4 Qcc5 Be3 Qb4 Be8 Nc6 Qg8+ Rf7 h8R Be7 Qf8 Bd8 Rg8 Na7 Bc6 Rh7 Be8 Qb6 Qfc5 Qd6 Bc6 Rh3 Be8 Rf3 Bd7+ Ke7 e6 Kf6 e7 Ke5 e8N Rf2 Qb7 Nc7 Nd4 Na8 Nf6 Qf8 Qbc6 Qb6 Qc7+ Qbd6 Kc2 Rf4 Qeb5 Rf3 Bc4 Rf1 Kd3 Qb2 Bf2 Kf4 e5 Bf7 e6 Qa1 e7 Be6 e8Q Qb2 Be3+ Kg3 Rh6 Qa1 Bf4+ Kf2 Ng4+ Ke1 Rh2 Kd1 Be3 Bd5 Nc2 Qag7 Nd4 Bf7 Qe4 Bd5 Qg2 Be6 Qe2+
N6n/B1N1QkB1/3K3P/1q2R1R1/pQR3P1/1B1p3n/1Qq4Q/brNr1b1n b - - 0 1 illegal: No proof kernel
1rq1b3/B2qQR1N/1R1NQNp1/7B/P5R1/3q2bK/1pQP2n1/rBn3kN b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 f4 Kf6 Kf2 b5 Kg2 e5 a4 c5 d6 c4 a6 b4 h6 b3 a7 e4 d7 g6 h7 e3 h5 e2 h6 e1Q Bb2+ c3 Qc2 Qe3 Bd3 Qee8 Rh4 Ba6 Rg4 Bc4 Ne2 Qe3 Ng3 Qde8 d8Q+ Ne7 Nh1 Qc5 Kh3 Rg8 h8N Qc8 h7 Bb5 Nf7 Nd7 Nd6 Rb8 a8B Nc5 Bf3 Qed7 h8Q+ Bg7 Bde4 Rf8 Qg8 Nd3 Ba3 Bh6 Bc5 Nc1 Ba7 b2 Ra3 Bg5 Rb3 Bh4 Qd5 Bc6 Rb6 Bg3 Qc7 Qa6 Qdb3 Qd3 Qe6+ Kg7 f6+ Kh6 f5 Kh5 f7 Nd5 f6 Ne3 Qd8 Ng2 Qde7 Rfc8 f8N Re8 Qd1 c2 f7 Rec8 Nh7 Bb5 f8R Rc3 Qe1 Ra3 Rf7 Ra1 Qe3 Qf1 Qe2 Qd8 Nc3 Na2 Qb3 c1Q Nd5 Qcc8 Bb1 Be8 Qc2 Nc1 Q2e6 Qd3 Be2 Qdd7 Re4+ Qf3 Bf1 Qb3 Nf8 Qd3 Nf6+ Kg5 Re3 Kf4 Re4+ Kf3 N8h7 Ne3 Bg2+ Ke2 Bf3+ Kf1 Rh4 Kg1 Bh5 Ng2 Rg4
2r3B1/1NnQKn2/1BQQpR1r/2p1R1N1/2P1Q1q1/B3bq2/n1b4P/1N1R3k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 exd3 Kd7 d4 Ke8 d5 Bf5 Ra3 Bd7 Ra1 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 c5 d4 a5 b4 a4 h6 a3 g6 f6 h7 a2 g7 Qe8 b6 Bd7 b7 Bc6 Kf5 Ra7 b5 Ra4 b6 Rb4 Ba3 Ra4 Bc4 Ra5 Nf3 Ra4 Rf1 Na6 b8R Nc7 b7 Qh5+ Ng5 Ra8 Re8 Ba4 b8Q Qg4+ Kg6 f5 Kf7 f4 c3 Nf6 g8Q f3 Qg6 f2 Qe4 Bh6 Qdf3 Bc2 Qfd3 Rg8 h8Q Nd7 Qd8 Ra6 Qf6+ Ne6 Rd1 f1Q Qd2 Qff3 Qa8 Kc7 d6+ Kb6 d5 Nc7 Qd8 Rh8 Qdf4 Ra8 Qfg6 Rc8 Qff6 Rh7+ Qg7 Ne5+ Kf8 Kb7 d7 Nf7 d6+ Kb6 Be6 Ne5 Bg8 Nf7 Qfg6 Kb5 Qc6+ Kc4 Rf1 Rh8 Qe6+ Kd3 c4 Rh7 Qg6+ Ke2 Qge4+ Qe3 Rd1 e6 Ke7 Kf2 Rf8 Qeh3 Rd5 Qhf3 Re5 Rh8 Qgh7 Kg2 Qg7 Nb5 Qdc7 Rh7 d8N Kh1 d7 Rh8 Q7b6 Nc7 Nb7 Rh7 d8B Rh8 Nh3 Be3 Ng5 Rh6 Qa6 Na8 Bb6 Nc7 Nc3+ Bd1 Rc1 a1N Nb1 Nc2 Qd6 Nb4 Qa8 Nd8 Rf6 Na2 Qa4 Nf7 Qac6 Kg2 Qgh7 Ba4 Rd1 Bc2 Rd3 Nh8 Qf7 Kh1 Qfe8 Nf7 Qed7 Rg6 Rdd5 Rh6 Rd1+
1Q1nRR2/1N4K1/P2r2NP/4r3/B1Nbn2B/qp1pQ1Nq/k5Q1/Br1R1b2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 d5 Kd4 b5 Ke5 g5 f4 g4 a4 g3 h4 d4 c4 b4 c6 e6 c5 g2 f6 b3 c7 Bb7 c8N Bc6 h6 Bb5 c6 Qd7 f5 Bg7 c7 Na6 h7 Bd3 h5 Rb8 h6 Qe8 Nd2 Nb4 a6 Bc2 a5 Qf8 a7 Bd3 a8Q Bb5 a6 Rb6 Qe2 Rd6 Qe3 Be2 Nc4 d3 Ne7 Qc8 Ng6 Qf8 c8N Nc6+ Ke4 Nd8 Ke5 Qe7 Rh4 Ke8 Re4 Kd7 Ba3 Qf8 Rd1 Qe7 Qb8 Kc6 Bb4 Qf8 Be1 Qe7 Qa8+ Kb5 Bh4 Kb4 Qc6 Qd7 Qd5 Qa4 Qc6 Qa3 Qa8 Bf3 Ne2 g1Q Ng3 Qh1 Bh3 Be2 Bg4 Bf1 Qd5 Rd7 N8d6 Qh3 Nb7 Rd6 Bf3 Ne7 Bg2 Re8 h8B Kc3 Qc6 Nd5 Bh1 Kc2 Bf3 Nc3 Bg4 Bf8 f7 Bg7+ f6 Re7 f8Q Re8 Nd2 Kb2 Nc4+ Ka2 Qg8 Re7 Qc8 Re8 Qb8 Re7 Kf4 e5+ Kf5 Re8 f7 Ree6 f8R Re8 Rf4 e4 Rf3 Ree6 Re8 Bd4 Kg5 Re7 Bd7 Re5+ Rf5 Rde6 Ba4 Rd6 Qf3 e3 Qg7 e2 Qe3 Rdd5 Kf6 e1R Qg8 Rd6+ Kg7 Ne4 Rff8 Re2 Qd5 Rb2 Qg8 Rb1 Qd5 Nd2 Qg2 Ba7 Kg8 Ree6 Bc3 Re5 Kg7 Bd4 Bb2 Ne4 Ba1+
5BN1/kR1rQ3/P2qpQ2/2p3bK/R5BP/1rN2nqN/rBR1b3/N1nQ4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 b5 Kg4 g5 h4 c5 f4 Kc7 a4 Kb7 d4 e6 d6 b4 f6 b3 d7 b2 f5 Qe7 d8Q Qc7 h6 Na6 h7 Ka7 f7 Bh6 f8B Qg3+ Kh5 g4 d5 Qc3 f6 g3 f7 g2 d6 Qf6 d7 Bg7 Be2 Kb7 Nh3 g1Q Bg4 Nb4 a6+ Kb8 a5 Ra7 Rh2 Qe1 Nc3 b1R Ra4 Rb3 Bb2 Nh6 Qe7 Qf3 d8N Bf6 Rc2 Qeg3 Nb7 Bg5 Qf6 Rg8 h8N Rg7 Ng6 Nd3 Ne7 Nf5 Ng8 Nc1 Rb4 Qd3 Rb5 Ra8 a7+ Kc7 Rb4 Nd4 Rb6 Nf3 Rb5 Rb8 a8R Qdd6 Rb4 Ra3 a6 Ra2 Ra7 Bd7 Ra4 Kb6 Na5 Bb5 Nb3 Be2 Na1 Rb7 Be7 Rd7 f8Q Rf7 Q8g7 Rb7 Bf8 Rfd7 Qge7 Rb8 Ra8 Rbb7 Rd8 Ka7 Rb8 Rb3 Rb7+
1B3RQn/3K1n1p/Nq5N/Q1PB2r1/kP5B/1p1NnQ1R/2b1Q2r/qR2b3 b - - 0 1 illegal: No possible last move
3QNN1r/Qnq2n1p/1k1pB1Pr/R2Q1N1R/P2q1R1B/n1N5/8/1BK1b2b b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 b5 f4 e5 c4 b4 g4 d6 c6 b3 a6 e4 c5 b2 f6 Be6 f5 Ra7 f7+ Ke7 c7 Kd7 c8Q+ Ke7 g6 Bb3 g7 Nf6 c6 Nh5 g5 Rd7 f6+ Ke6 g8N Kd5 c7 Kc6 g6 Ng7 a7 Ne6 a8Q+ Kb6 Bd3 Re7 Ne2 Ng5 Nbc3 Bh6 f8N Nc6 f7 Na5 Ng3 Bd5 Bb1 Nb7 Rh5 Re5 Nf6 e3+ Kc2 e2 Ne8 e1Q Nf5 Qf6 Qd8 Bh1 Qd5 Qe3 a3 Qe7 c8B+ Qc7 Be6 Qd4 Bf4 Re4 Bg3 Rh4 Qa4 Rh3 Bh4 Bg7 Ba2 b1N Kc1 Nd2 Bb1 Nc4 Ra2 Bf6 Rf2 Bg7 Rf4 Be5 Qad7 Rh2 a4 Na3 Rf2 Bg3 Rb2+ Ka6 Rb5 Be1 Ra5+ Kb6 Ne7 Qg1 Rh6 Nb5 Bg3 Nc5 Rh4 Na3 Rf4 Rh6 Bh4 Nh3 Rf5 Qd4 Rh5 Bg2 Bef5 Bh1 Ne6 Ng5 f8R Nge4 Bh3 Ng5 Rf4 Nf7 Nf8 Bf2 Q8c8 Qd8 Be6 Be1 Nf5 Qe7 Qca8 Qd8 Qdc8 Qc7 Qd8 Nb7 Qa7#
2R1R3/q2k2p1/1p4q1/B5Qb/RP1nQNn1/B1PQ2Nb/1Nr2r2/K1bB3B b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 h5 dxc5 b6 a4 h4 a5 h3 a6 Bb7 gxh3 Qc8 h4 Qc7 h5 Bc8 Bd3 Rh6 Bf1 Qb7 axb7 Rh8 Kd2 d5 Kc3 e5 f4 a5 h4 a4 h6 e4 c6 a3 c7 a2 h5 e3 f6 e2 f5 e1Q+ Bd2 Bd7 c8B Qf2 f7+ Ke7 h7 Bc6 h6 Ra6 f6+ Kd8 Be2 Qf1 Na3 Bc5 f8N Nd7 b8R Ne5 f7 Qf4 Nc4 Nd3 Ne6+ Ke7 f8B+ Ke8 Bb7+ Kd7 Re8 Qf7 Nf4 Be3 Ba3 Qe6 b3 Qf7 Nb2 Nf6 Qb1 Bb5 Bd1 Nc1 Nge2 Rf8 h8Q Ng4 h7 Qg6 Ng3 Bf1 Qg8 Ra4 h8Q Bh3 Qh6 Ra7 Qg5 d4+ Kb4 d3 Kc3 Ra5 Qc4 Rc5 Re1 Rf7 Bh1 Rc7 Rc8 Ne2+ Kb4 Rf8 Qe4 Nd4 Ka4 Rc5 Ba5 Bc1 Re2 d2 c3 Rd5 Re1 Re5 Qed3 Re2 Kb4 Rh2 Ree8 Rg2 Qe4 Rf7 Qbd3 Rf8 Rb1 a1Q Ka4 Qa2 b4 Qaf7 Ra1 Qe7 Bc2 d1B Ra2 Bf3 Bd1 Rc2 Qde2 Ne6 Kb3 Rf6 Ra1 Nd4+ Ka2 Rf5 Q2d3 Be2 Ne6 Rf2 Kb1 Ne3 Nf4 Bh5 Ra2 Ng4 Ka1 Qc5 Qc4 Qc7 Qcd3 Qa7 Nc4 Nh6 Bb2 Qf6 Ra4 Qg6 Ba3 Ng4 Nb2
1bn4Q/4kp2/1Q3R2/4P1R1/qP1p1Kn1/1Nq1BbNB/N3Rr2/1QbB1rN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 Ke3 g5 h4 d5 b4 a4 c4 a3 h6 g4 c6 d4+ Kf4 g3 e4 a2 h7 g2 c7 Bg4 c8N Na6 h5 Nc5 h6 Bf5 b6 Qf6 e6 Ra7 b7 Na4 b8N Qe7 c5 Ra6 c6 Qf6 e7 Qg7 c7 Qf6 Be2 Nc5 Rh5 Rc6 Nc3 Na6 Nd7 Nb8 Nc5 Nd7 Nb3 Ne5 Rg5 Ng4 Be3 Rd6 Rc1 a1Q Na2 Qc3 e5 Ra6 Rc2 Qfc6 Qb1 Qa4 Bd1 Be4 Re2 Bf3 Nd6+ Kd7 e8B+ Ke7 c8R Rc6 Ne4 Rf6+ Kg3 Rf4 Rc6 Rf5 Rf6 Rf4 Nh3 g1B Bd7 Rf5 Bd2 Be3 Ng1 Kd8 Bc1 Ne7 Be6 Rg8 h8Q Nc8 h7 Ke7 Qg7 Bd2 h8Q Be3 Qhh6 Rh8 Qhg6 Rh2 Qh8 Rf2 Bd7 Rf4 Qgh6 Nh2 Bh3 Ng4 Bd2 Rf1 Be1 Bc1 Bf2 Bg2+ Be3 R4f2 Qg6 Bf3 Kf4 Kd7 Bd2 Bd6 Be3 Bb8 Ng3 Ke7 Rff5 Ba3 Qb6 Bc1 Rf6
2B4K/B1b1PRpN/b1nrnQ2/Bq2N3/1R5P/QQ1N2r1/1p1q2qR/N6k b - - 0 1 illegal: No possible last move, all moves rejected
k5N1/1r2p3/1Qb2nQN/K1bP3R/1BQ3r1/1NP1R1pB/1q2nq1N/3R1Bb1 b - - 0 1 illegal: No proof kernel
3R4/K1k1pN1N/1B1r1qQ1/3P2p1/P1NB4/Q2q2RR/bbQ2R2/2q1nrnB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d6 Kd7 Ke2 b5 Kd3 g5 Kd4 b4 Kc5 c6 d4 b3 f4 b2 h4 Rh6 f6 Bb7 f5 Bc8 f7 Bb7 d5 Ra6 f6 Qe8 Nf3 Kc8 d7+ Kd8 Na3 b1Q Bg2 Ra8 a6 Qd3 Kb6 c5 a7 c4 Rh3 c3 Bh1 c2 Be3 c1Q Ne5 Rh7 h6 Qcd2 h5 Qg2 Bc5 Qg1 Rc1 Nc6 Qc2 Bg7 f8N Qd2 f7 Ba6 Rb1 Qge1 Rbb3 Bc4 Rbg3 Nb4 Kb7 Rh8 h7 Nf6 h6 Nh5 Kb6 Bb3 Nac4 Nf4 a4 Rg8 h8Q Nbd3 h7 Qec1 Ka6 Rc8 a8Q Ne1 Qc6 Qd3 Ka7 Ne2 Qg6 Bf6 Qhg7 Rc6 h8B Ng1 Nh7 Kc7 f8R Qf7 d8R Qe6 Rf7 Rd6 Rff8 Qe2 Qgd3 Ba2 Qa3 Qd3 Qg6 Bg7 Rf7 Rf8 Rff3 Rf4 Nf7 Bb2 Bhd4 Qf6 Rf1 Re4 Rf4 Re3 Rf5 Rf3 Rf4 Rf1 Rff3 Rb6 Rf2 Rd6 Bb6+
2n1bR1Q/3NpP2/B1R2b2/5K2/3QRQQ1/1Bq2NBn/p1P5/1rrqb1Nk b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 Kf6 Kf4 d5 h4 a5 b4 g6 b6 a4 b5 d4 c6 d3 c7 a3 h6 a2 h5 d2 b7 Ra6 b6 Be6 c8B Ra7 h7 Bg7 h6 Bd7 Qg4 d1Q Bc4 Be8 Nd2 Qd3 Bb3 Qc3 Ndf3 Nd7 b8Q g5+ Ke4 Ra6 b7 Rb6 Bf4 Rb5 Bg3 Nb6 Qbf4 Rb4+ Bc4 Rb1 b8N Rc1 B8a6 Nc8 Bb3 Rb1 Qh5 Rc1 Rb1 g4 Rb2 Rb1 Rh4 Rc1 Be6 Rb1 Rb6 Rc1 Rc6 Rb1 Bh2 g3 Qhg4 g2 Bg3 Rc1 Ne2 g1B Bb3+ Qd6 Rc4 Qd1 Nd7+ Kf7 f6 Rb1 Qgg5 Ke6 f7 Bf6 f8R Bh2 Neg1 Rc1 Nde5 Kd6 Kf5 Kd5 Qfg4 Rb1 Nd7 Rc1 Be5 Bf4 Bd6 Bd2 Bg3 Be1 Q5f4 Be5 Bb5 Nf6 Ba6 Rg8 h8Q Ne4 h7 Bf6 Qhg7 Ng5 h8Q Nh3 Rh6 Bg5 Qf6 Rg6 Qfg7 Rb6 Rhc6 Bf6 Re4+ Qc4 Nh4 Rb4 Qfg5 Bd2 f4 Bfc3 Re2 Na7 Ba4 Rb2 Bb3 Rbb1 Re5+ Kd4 Q5h6 Qb4 Ke6 Be1 Qhf6 Nc8 Qgf7 Bcd2 f5+ Bf4 Q6g7 Qbd2 f6 Qc3 Rf5 Ke3 Nhf3 Bh6 Rf4 Bg5 Rd4 Bh4 Ke5 Bg5 Qc4 Bh4 f7 Bg5 Kf5 Bh4 Bd6 Kf2 Bg3+ Kg2 Qgh6 Kh1 Qhf4 Bg5 Re4 Bf6 Qd4
1r4b1/2RPnrQ1/N4QqN/1nKRR1p1/4QBNp/2bR2P1/1b1q3k/B6B b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 f5 exf5 b4 h5 b3 axb3 Nd7 b4 Nb8 b5 Qd7 Na3 Qd6 Nb1 Qg6 hxg6 Kd8 Nc3 Kd7 Nb1 Ke8 Ke2 Kd7 Kd3 Kd6 Kd4 a5 b4 h5 f4 c6 g3 a4 b6 a3 b7 a2 g7 h4 f6 e6 f7 Rh5 f5 Na6 b8B+ Nc7 b5 Nf6 g8N Ra6 b6 Ra8 b7 Ne4 f6 Bg7 f8Q+ Kd7 d6 Rh7 Bg2 Rh6 Qf3 Nd5 Na3 Nb4 Nc2 Nd5 Nh3 Rh7 Nb4 Ne7 Na6 Nc3 Nh6 e5+ Kc5 Ke6 d4 e4 d7 e3 d8R e2 f7 e1Q Nf2 Qd2 Bb2 Nb5 Rac1 a1B Bf4 Rb8 Qe4+ Kf6 Qh8 Be6 f8Q+ Bf7 Bc3 Bb2 Rd5 Qd3 Qd8 Bg8 Rhe1 Qc2 Bh1 Qd2 Kb6 c5 Red1 c4 Kc5 Qc2 Rd3 Qd2 Re5 Qc2 d5 Qb1 Bb4 c3 d6 c2 d7 Bc3 Rcd1 c1Q Ba5 Bb2+ Bc3 Qd2 Rdd5 Qe2 R1d3 Qd2 Qe1 Kg6 Qe4+ Kh5 Nfg4 Bf6 Qb6 Rf7 Qg7 Qbc2 Rf5 Be5 Qbf6 Qb1 Bb4 Bec3 Rfe5 Rbf8 b8R Re8 Rb7 Rb8 Rc7 Qbc2 Re3 Qcd3 Qd4 Qg6 Qe4 Bc1 Ba3 Qe1 Bb2 Qd2 Ba1 B1b2 Nf2 Qc1 Nd1 Qd2 Nf5 Kg4 Nh6+ Kh3 Nf2+ Kh2 Rf3 Bh7 Rfd3 Bg8 Nfg4+
8/2QP2p1/Kb3Q2/1PBqR3/1NRR1rnq/nr1bpQR1/1NB5/rk1N2B1 b - - 0 1 illegal: No possible last move
2q4r/R2p1Np1/1q1QB2B/n1N1P2R/R4bQ1/1q3Br1/kPb5/n1R2NQK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg2 Ke6 c4 a5 e4 f5 h4 f4 h6 a4 h5 a3 b6 a2 h7 Ra3 c6 Qc7 b7 Rf3 h6 Qb6 c7 Bc5 Rh4 Nc6 b8Q Bd6 c5 Ba6 c8R Rf2+ Kh1 f3 Bc4+ Ke7 e6 Bf4 e5 Qb7 Nd2 Nd8 c6 Qa8 c7 Rg2 Nb3 f2 Ne2 Nc6 Qg1 f1Q Nc5 Na5 Ng3 Qd3 Nf1 Qb3 Be2 Qa7 Bf3 Rg3 Rg4 Nf6 Bd2 Rg8 h8R Ne4 h7 Bd3 Rc1 a1Q Qb4 Qc3 Ra8 Qaa3 c8Q Bc2 Qcb8 Qb6 Ra7 Qab3 Be3 Nd2 Qd6+ Ke8 e7 Kf7 Rh4 Rb8 Rh5 Qcc4 Rc8 Qca6 Rc6 Rh8 Ra1 Qc8 Ra4 Qd5 Qd4 Ndb3 Bd2 Na1 Qb4 Bg5 Qg4 Qdb3 Be3 Bf6 Bh6 Bg5 Qd1 Bf4 e8B+ Ke7 Qd6+ Kd8 Rh2 Be4 Qf5 Qd1 Nd3 Rg8 Qc7+ Ke7 Rc1 Rf8 Qh5 Ke6 h8N Kd5 Qg4 Rg8 Rh5 Qc2 Nf7 Rh8 Ng5 Qc4 Nc5 Qc2 Ra2 Kc4 Qd6 Qc3 Bg6 Bc2 Bf5 Qd3 Nf7 Qd5 Ne4 Kb3 Ra4 Qd3 Be6+ Qdc4 Rb4+ Ka2 Nc5 Qb3 Ra4+
2q1BN2/qP6/3p2R1/b1Bb3p/1NQ1P1B1/1N2QQk1/2R1R2n/rqN1rnK1 b - - 0 1 illegal: No possible last move, all moves rejected
2N2r2/1PK4Q/PBbN4/R3RQ1q/r2n2b1/bqRpR1p1/2n2N1Q/4kBB1 b - - 0 1 illegal: No proof kernel
NQkr1B1R/1p3Br1/Qp1B4/5P2/n1b2nRN/1b3KQ1/3NPbR1/qq4N1 b - - 0 1 illegal: Other
4Q1NN/1pqqBPR1/prR1Q1r1/7B/2BRQn1q/1n3bbQ/1KP1k1N1/8 b - - 0 1 illegal: No possible last move
1Q3b1q/P1Q4R/Brn1B1PQ/N1N1b3/1k4nR/N1p2R1p/R4rbq/2B1K3 b - - 0 1 legal: proof: e4 d5 h4 f5 exf5 g5 hxg5 a5 c4 a4 cxd5 a3 bxa3 Kd7 a4 Ke8 a5 Bg7 Qg4 Bh6 Qd1 Bf8 Qh5+ Kd7 g4 e6 d4 Kd6 a4 b5 f4 c5 Ra2 c4 a6 h6 f6 c3 f5 b4 f7 b3 a5 b2 f6 Be7 f8Q Qb6 f7 Bd7 Na3 Nc6 Ne2 Qa7 Ng3 Nd8 Ne4+ Kc7 d6+ Kc6 Rh2 Bc8 d7 Qc7 Bb5+ Kd5 Nc5 Rb8 Qe8 Rh7 f8R Nf6 Qef7 Nc6 d8R+ Bd6 Rd7 Rb7 Qhg6 h5 Be2 h4 Qfg7 Ng8 Rf3 Nf6 Rh1 Qd8 Q6f7 Rh5 Qh6 Qh8 Qe7 Rb4 Qd8 Rb7 Qc7 Rb4 Rh7 Bf8 a7 Rb7 a8Q e5 a6 e4 a7 e3 Qab8 Rb6 Ba6 e2 Nb5 Kc4 d5 Kb4 d6 Bf5 d7 Be4 d8N Bd5 Rf4+ Be4 Na3 h3 Ndb7 Rh4 Rhf1 Rh5 Kf2 e1B+ Ke2 Bg3 Na5 Bh2 Ke1 Rh4 g6 Rh5 g7 Rf5 R4f2 Be5 g5 Bh1 Rf4+ Be4 Rh4 Ng4 g8B Bd5 g6 b1Q Be6 Qc2 Qd6 Qh2 Qdc7 Bg2 Rf3 Rf7 Re3 Rf2 Rf3
R2KB2N/r7/2r1B2R/1b2Q2p/3QBk2/1PbQbnp1/qn1NR2P/b1B4N b - - 0 1 legal: proof: g4 d5 e4 b5 exd5 c5 Bc4 f5 gxf5 b4 Bf1 b3 axb3 c4 Bd3 c3 bxc3 Nc6 Bf1 Nb8 Ke2 Kd7 Kf3 Kd6 Kf4 h5 Kg5 Ke5 d4+ Ke4 f4 a5 c4 e5+ f6 a4 d6 a3 d5 g6 c5 a2 c4 Bf5 c6 Nh6 c7 Ng4 c8B Ra6 d7 Be6 f5 Rh7 d6 Nf2 c5 Qa5 d8R Rb6 f7 Na6 Kf6 g5 d7 g4 c6 g3 c7 Ba3 f8Q Rb7 Qe7 Bb2 Bb5 Qd2 Nh3 Bc4 Re1+ Qe3 Qd4+ Kf3 Re2 e4 Qee5 Rh6+ Ke7 Bc3 f6 Nc5 f7 Nfd3 f8N Nb2 Nf2 Ne6 Ng6 Qd2 Nh1 e3 Rh8 Ra7 d8Q Ng5 Be8 Bb5 Bf5 Qc2 Rh7 Bd2 Nh8 Rc6 Rh6 Bc3 Re1 e2 Be4+ Kg4 Nd2 Nf3 Qd3 Bd4 Qdd6 Be3 Kd8 Qb1 Qed4 Qc2 Q6c5 Kf4 c8B Qb1 Be6 Qc2 Rg1 e1B Rg2 Qb1 Re2 Qc2 Nb1 Bb4 Nd2 Bc3 Rb1 a1B Qe7 Na4 Rb2 Qb1 Ra2 Nb2 Ra6 Qa2 Qec5 Rac7 Ra8 Ra7 Qce5+
2N2r1B/7b/1K3Qq1/1Nn1bp2/1r4P1/n1R4B/1nBQBQpP/kn1R1NR1 b - - 0 1 illegal: No proof kernel
Qb3N2/1BnQ2R1/1b1BrR1B/1N2Np1r/1nK2P1P/1p3r2/2RQ3q/Q1r1k3 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 b6 e4 Qd6 e5 Qd8 d6 Kd7 e6+ Kc6 Ba6 Kd5 Bf1 Bd7 exd7 Ke6 d5+ Kf6 Kd2 Kf5 Kd3 e5 h4 g5 a4 c5 h6 b5 h7 b4 a6 e4+ Kc4 e3 a7 Kf4 a5 f5 a6 g4 Nf3 b3 Qd2 g3 Bg2 Qf6 d8R Qh6 d7 Nc6 d6 Nf6 Rg1 Nb4 Rc8 Nfd5 d8Q Nc7 d7 Bd6 Na3 Qf8 Bh1 g2 Nb5 Qe7 Qe8 Qe5 d8B Kg4 Qe7 e2 Qd7 e1R Be7 Qh2 Ne5+ Kh3 Rf8 Re8 a8Q Re3 Rf6 Rf3 Bf8 Re6 a7 Nc6 Ra2 Nb4 Rd1 g1B Rc2 Re3 f4 Kg3 Bb7 Rf3 Ba3 Bf2 Bh6 Be3 Kc3 c4 Re1 Bb6+ Re3 Rg8 h8N Rg5 Nhg6 Rh5 Qh8 Ba5 Kd4 c3 a8Q Bb6+ Kc4 Qg1 Ra2 c2 Nf8 c1R+ Rc2 Qf2 Re2 Kg2 Re4 Kf1 Re2 Qh2 Rg2 Ne8 Rg7 Bb8 Qe3 Nc7 Qed2 Nc6 Bd6 Nb4 Qd4 Ke1 Qda1 Re8 Qg8 Re7 Qd5 Re6 Qd2+
4BQRQ/1r4b1/B6n/1PnQp1r1/2b5/bqBRPN2/p5NK/NbR1Rk2 b - - 0 1 illegal: No possible last move, all moves rejected
1Nb5/2bNQ1pk/1R2q3/1b1n1Q1K/N1P2R1b/2B1P2r/Q2p2B1/B2R1nrQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 d5 Kg3 f5 b4 Kf7 c4 a5 h4 a4 e6+ Kf6 c6 a3 c7 d4 h6 Kg6 h7 f4+ Kg4 d3 b6 a2 b5 f3 e3 d2 b7 f2 h5+ Kh6 b6 Qf6 Qc2 Ba3 Rh4 Ra7 Bb2 Nd7 b8B Qf7 e7 Qf8 e8Q Ra4 b7 Qf7 Bg2 f1B Bc3 Rb4 Nf3 Bb2 Qe7 Ba3 Ne5 Nb6+ Nd7 Nd5 Ba7 Bb2 b8N Qe6+ Qf5 Bd3 Bad4 Bc2 Be5 Ba4 Bf6 Bb7 c8R Bb5 Rc6 Bc8 Rb6 Rb3 Ba5 Be5 Nc3 Bg3 Rd1 a1B Na4 Bae5 Bc3 Bc7 Ba1 Bf2 Bfc3 Rb2 Rh3 Rb3 Rf3 Rb1 Rf4 Ngf6+ Kh3 Ne4 Kg4 Ng3 Kh4 Rf8 Kg4 Rf6 Kh4 Qg8 Kg4 Nf1 h8Q+ Qh7 Qhe8 Qg8 Qa3 Qe6 Qa2 Bh4 Qe7 Bg5 Ndc5 Rg6 Ncd7 Kh7 h6 Bh4+ Kh5 Rc1 Qff7 Rg3 Qff8 Rh3 Qf5+ Kh8 Be5 Ng3+ Kg4 Bg5 Rg1 Rh1 Bf6 Rf1 Bfc3 Rf3 Rd1 Nf1 Rd4 Kg8 Rf4 Bf6 Qb4 Rg1 h7+ Kf7 h8Q Rg3+ Kh5 Rf3 Qh6 Kg8 Qhg5 Kh8 Qh3 Kh7 Qh1 Be7 Qg4 Bh4 Qe7 Rh3 Qf5+
3R1Q2/nQNb1P1k/p1pr3R/NRr3B1/BKnr3b/1Q3P2/1Br1NN2/q7 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 h4 Kf7 d4 g5 Kd2 Kg7 Kc3 e5 b4 g4 d6 c6 f3 g3 f6+ Kh7 d7 e4 h6 e3 f7 e2 b6 e1R h5 g2 b5 Nf6 d5 Bd6 b7 Ba3 d6 Bc5 b6 Re7 Bb5 Qe8 d8N Ba3 d7 Bd6 Nd2 Ng4 Rb1 Rg8 Ba4 Qf8 Ne4 Na6 b8Q Kh8 h7 Nc7 Nb7 Re6 Na5 Ne5 b7 a6 d8N Rh6 Ne6 Rg5 Bf4 Rf5 Bg5 Nc4 Rb2 Bg3 Rb4 Rc5 Qb3 Qd6 Rb6 Nb5+ Kb4 Be5 Qa7 Qd1 b8R Bh2 Qb7 Bg3 Nc7 Na7 Rb5 Qa1 Rh3 Rf6 Rh2 Kg7 h6+ Kg6 Rh5 Bh4 h8B Bg4 Rf8 Rd8 h7 Rd3 Ra8 Rfd6 Rd8 Bd7 Bb2 R3d4 Rh6+ Kg7 Ne2 g1R Nf2 Rc1 Rh5 Rc3 h8Q+ Kg6 Qe8 Rc2 Rh6+ Kg7 Rg6+ Kh7 Qf8 Qc1 Re6 Qa1 Rh6+
3r1kN1/2B1p1N1/1Q3Nqp/2n2RQ1/1bKQ2RB/1N1P2Pr/R5r1/1rnB3b b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 c5 Kd3 a5 f4 a4 b4 h6 g3 a3 f6 a2 g6 Ra6 f7+ Kd7 d6 Nc6 b6 Ra8 f5 Rh7 b7 Qb6 b8B Qa5 b5 Na7 g7 Qa6 Ne2 Bb7 Nec3 Bg2 Be2 Qa4 b6 Qa5 b7 Nf6 Ne4 Nb5 g8N Rg7 Rh4 Rg5 Bc7 Qb6 Rg4 Bg7 f8Q Nd4 b8Q c4+ Kc3 Qc6 Qb6 Nb3 d3 Re8 Qd2 Bh1 Bd1 Rh5 Qb2 Bh8 Bg5 Rh3 Nbd2 Bg7 Kb4 c3 Bh4 c2 Qf7 c1R Qg6 Rc3 Qg5 Nc1 Nb3 Rc2 Qe5 Rb2 Qec5 Rc8 Kc4 Ke8 d7+ Kf7 d8R Nd7 f6 Rg2 Re8 Rd8 Rf8+ Ke6 f7 Bc3 Bc2 Qd6 Qd4 Nc5 Bd1 Bd2 Re8 Ba5 f8N+ Kf7 Ne6 Bb4 Ng7 Qg6 Qg1 Rc8 Qd4 Ra8 Rd8 Rc8 Rd6 Kf8 Nef6 Rb8 Rd5 Rd8 Rb1 a1R Rb2 Rb1 Ra2 Na6 Re5 Nc5 Rf5
1Q2N1RK/rQP3rp/1RbN4/q1pB2rb/r1Pn2R1/6B1/1nBN4/kQ4R1 b - - 0 1 illegal: No possible last move, all moves rejected
KQRrrNq1/B4NP1/b2B1R1R/4p1n1/1N5q/1Q1BPkr1/p3qN1Q/b7 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 fxg5 b4 h4 b3 axb3 Na6 b4 Nb8 b5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Nd7 g6 Bg7 h5 Bb7 g5 Bf8 g7 Bc8 Qb3 Ne5 Qd1 Ng6 hxg6 Bd7 Ra5 Bf5 Ra1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 h5 b4 f5 e3 a5 b6 c6 b7 f4 b8Q+ Qc7 b5 e6 b6 f3 b7 a4 Nh3 h4 Ba3+ Kd7 d6 f2 Kc5 e5 d4 Ke6 d5+ Kf5 Nc3 Rh7 Qc2+ Kg4 Na2 Nf6 g8R Kf3 g7 Qd8 g6 Rh8 Nb4 Nh7 Bd3 f1Q Qh2 Ng5 Nf2 Qe2 Raf1 Be7 Re8 h3 g8Q Bf8 g7 Be7 Bb2 a3 Bd4 a2 Qe6 Qd7 Kb6 c5 Rg8 Qe8 d7 c4 d8N c3 d6 c2 d7 c1R Nf7 Bc5+ Kc6 Rd1 Qb3 Rh7 Rh8 Qg8 d8N Rh6+ Kc7 Rg6 Ne6 Ba7 Bc5 Rd2 Bf8 Bd4 Bd6 Ba1 Nf8 Rd1 Rh6 Rd2 Rc1 Rd1 Rf1 Rd2 Qg1 h2 Rc5 h1Q Qh2 Nh7 Kb6 Rg3 Rc7 Ng5 Rc5 Bd7 Rc8 Bb5 Kc7 Ra5 Kb6 Ba6 Ka7 Ra4 Ka8 Ra3 Qg1 Qh4 Qh2 Ra5 Qa7 Rb5 b8B Rb7 Qb6 Re7 Ba7 Re8 Qb8 Rc2 Rd1 Rc7 Rc1 Rd7 R1c7 Rdd8 Re7 Qh7 Ree6 Qg8 Ref6+
Q2NR1Q1/KN6/QR2Rkp1/b7/rN2p2q/bB1N1rPq/1rB2PbB/5n2 b - - 0 1 illegal: No possible last move, all moves rejected
R7/1Nb4q/p1q1q1b1/1R4QN/B1NRP1rr/P1b2KQ1/kBB1Rp2/5n1Q b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Be7 gxh5 Bf8 e4 Qe7 f4 Nc6 e6 Ne5 fxe5 Qd8 Kf2 Ke7 c4 g5 h4 b5 c6 d5 h6 f5 c7 d4 h7 a6 a3 g4 h5 b4 c5 f4 c6 b3 h6 f3 Ra2 d3 Re2 b2 Qb3 d2 Nh3 d1Q Nd2 b1Q Nf4 Qb2 Nh5 Qa2 Nc4 Q8d5 Bb2 g3+ Ke3 f2 Kf3 Bd7 c8R g2 c7 g1B Rd8 Bh2 c8Q Be8 Qc5+ Qd6 Rb8 Nf6 Rb5 Bg6 Qce3 Q1d5 Qg5 Qb7 Qd3 Rg8 h8Q Bg7 h7 Qdc6 Qde3 Qbc7 Qg3 Ng4 Qg5+ Bf6 Rg1 Ne3 Rh1 Ke8 e7 Kd7 e8N Ke7 Ned6 Ke6 Bg2 Nf1 Nb7 Ke7 e6 Rae8 Qh6 Bc3 Qhe5 Rg7 h8R Rh7 Bh3 Rg8 Bg4 Rgg7 Qd5 Q7d7 Ra8 Rh8 Qh3 Bc7 Qf4 Rh6 Qfg3 Rg8 Rg1 Qb3 Qh1 Rg7 Nf4 Rh4 Qd2 Kf6 e7 Rg8 e8B Qh7 Nh5+ Ke7 Ne5 Qbd5 Be6 Qdd7 Bb3 Qde6 Qc1 Rg7 Bc2 Rg8 Na5 Kd6 Qcg5 Rg7 Rb3 Kc5 Nb7+ Kd4 Rb5 Rg8 Ng4 Kc4 Bd7 Ne3 Rd1 Nf1 Be8 Rg7 Rdd8 Rg8 Bd7 Rg7 Ne5+ Kd4 Nf6 Qb6 Rb3 Bf5 Qh6 Rgg4 Qg5 Bg6 Ba4+ Qbd6 Rb5 Qdd5 Ned7 Kc4 Nh5 Qdc6 Bc1 B3a5 Ne5+ Kc3 Rd4 Bb4 Bf4 Kb2 Nc4+ Ka2 Bc1 Bc3 Bb2
1BkNrr2/3q3p/b3p1rB/1B1QB1Q1/1R2P3/4rb1P/2NRn1r1/Q3NR1K b - - 0 2 legal: proof: c4 d5 cxd5 b5 f4 b4 f5 b3 f6 Ba6 axb3 Qd7 b4 Bc8 b5 Qd8 g4 e6 Nh3 Be7 fxe7 f5 Qb3 f4 Qd1 Kd7 Ng1 Nc6 Ra2 Nd4 Ra1 Nf5 gxf5 Ba6 Ra4 Bb7 Ra1 Bc8 Kf2 c5 Kg2 g5 e8Q+ Kc7 b4 a5 d4 g4 e4 a4 b6+ Kb7 b5 g3 d6 c4 d5 a3 h3 c3 d7 a2 d6 c2 f6 Ra3 f7 Nh6 f8R Ra7 Qg6 Rg8 Qg5 Rg6 Na3 Nf5 Rh2 f3+ Kh1 f2 Rb1 a1R Nf3 Ra8 Rb4 Nd4 Ne1 Ne2 Qd4 Qe7 d8Q Qd7 Qg7 Rb1 Qa1 Rb3 Qd5+ Kb8 Bh6 c1R b7 Re3 Q8g5 Rcc3 Rg2 Rf3 Nac2 Rce3 Rd8 Rf8 Rg1 Qg7 d7 g2+ Kh2 Kc7 Rh1 g1R b8B+ Kb6 Bg3 Ba6 Be5 Rgg3 Rg1 Rg2+ Kh1 Qe7 Qc4 Kb7 b6 Qd6 Qd3 Rc8 Qd5+ Kb8 b7 Kc7 Re8 Ra8 Re7 Rae8 d8N+ Kb8 Rd7 Qc7 Rd6 Qd7 Rb1 Kc7 b8B+ Kc8 Rb4 Nd4 Bb5 f1B Beg7 Be2 Be5 Bf3 Rf1 Ne2 Qc5+ Qc6 Rd2 Qc7 Qcd4 Qd7 Qd5
RQ3QBr/b1K1B1rp/QrBp4/n1q2n2/2nP1N2/n7/1RRN3P/kNN5 b - - 0 2 legal: proof: b4 f5 f4 c5 bxc5 b5 a4 b4 e4 b3 exf5 b2 g4 Bb7 f6 Ba6 g5 Bb5 axb5 Qc7 f5 Kd8 Nc3 b1B g6 Ba2 Nb1 Bf7 gxf7 Kc8 Ra3 Qd8 Ra1 Kc7 Kf2 g5 Kg3 e5 d4 a5 c4 g4 b6+ Kc6 b7 e4 Kf4 g3 Ke5 a4 Ra2 a3 Ne2 g2 Bg5 g1N Rc2 e3 Nc1 a2 Qd3 a1N Bg2+ Kc7 c6 Kb6 c7 Ka5 c8N Kb4 c5 e2 c6 Ra2 c7 Bc5 f8R Ra6 f7 Rh6 f6 Ba7 Kd6 e1R Nb6 Qc8 Nc4 Nf3 Ncd2 Rg1 Qa6 Ne5 Bc6 Ne7 Rg8 Qf8 c8B Nc4+ Kc7 Nf5 Bh4 Qe7 f8Q Rg7 f7 Qc5 Be7 Re6 Rf1 Reg6 Rf2 Rd6 Ra2 Nc2 Rg2 N2a3 Rc2 Rd5 Re2 d6 Be6 Re5 Rf2 Re3 Rg2 Rb3 Rf2 Nd7 b8Q+ Ndb6 Qfc8 Rb2 f8N Na5 Ng6 Rb3 Qf8 Rb2 Ne2 Rb3 Ngf4 Rb2 Nc4 Kb3 Rg2 Ka2 Ncd2+ Nbc4 Nc1+ Ka1 Nf3 Qb5 Qbb7 Rg4 Qf7 Rg5 Rc3 Rg7 Ra8 Re2 Qb8 Qd5 Qff8 Re3 Rb2 Qc5 Rcc2 Rb3 Nfd2 Rb6 Bg8
1n1RNR2/1R2qnpN/1B1p3n/QB4n1/4b1k1/1PQ1b1b1/NrQ3P1/1R3B1K b - - 0 1 illegal: No proof kernel
2R2QKn/1p2p1BB/NP1NB3/k2b2n1/5q1R/2NQ2b1/2n1PR2/N2r1bnQ b - - 0 2 legal: proof: g4 d5 h4 a5 c4 g5 hxg5 a4 cxd5 a3 f4 Nd7 f5 Ra5 g6 Ra8 g7 Ra6 g5 Rg6 fxg6 Nb8 Nxa3 Bg4 Nb1 Bc8 Kf2 Kd7 Kf3 f5 Kf4 c5 Ke5 Kc7 a4 Kb6 b4 h5 d4 h4 a5+ Kb5 a6 c4 d6 f4 a7 c3 a8N f3 d7 f2 Ke6 h3 Kf7 h2 d5 c2 d6 Rh7 Bh3 f1N Nc7+ Kb6 b5 Nf6 Nc3 Nh5 Nf3 Nhg3 Na6 Rh5 g8R Ne3 g7 Ne4 g6 Rh7 Bb2 c1N Be6 Nb3 Nd2 Qc7 d8N Nd4 d7 Nbc6 Nb3 Nf3 Qd5 Rh4 Raf1 Ng1 Rf2 Nc2 Na1 Ka5 Qh5 Qg3 b6+ Qe5 Rh8 Ng5+ Kg8 Qf4 Nf7 Ne5 Nd6 Nef7 d8Q Rh3 Qd7 Rd3 Qf3 Rd4 Qdc6 Rd2 Qd3 Rd1 Rh4 Nh8 Qce4 N1f3 Rhf1 Ng1 Qh1 Rd2 Rc1 Rd1 Ba2 Bh3 Be6 Na3 Nb1 Bg2 Rc8 Bf1 Nc3 Nc2 Nd5 Nh7 Bd4 Qe5 Nc3 Ng5 Ndb5 Ne4 Kh7 Qg5 g8B Bg7 Nd6 Be5 g7 Bg3 Bf6 Qf4 Be5 Nf7 Bf6 Nd8 Kh8 Ng5 Bh7 Ndf7+ Kg8 Qe4 Kf8 Qf4 g8Q Nh8 Kg7 Bh3 Qf8 Bf1 Qhe4 h1B Kg8 Bhg2 Bg7 Bf3 Qed4 Bc6 Q4e4 Bd5 Qh1
1B1Rr1bR/k1R1Q1Qp/1bq4P/p4B1K/Nb1NB1n1/P7/3Q1b2/q1N1n2B b - - 0 2 illegal: No possible last move, all moves rejected
4R1q1/R1bK2Q1/2nn2Pq/r1RB3r/2QN1B2/p3NqN1/Pq3p2/BQN4k b - - 0 1 legal: proof: g4 c5 d4 h5 b4 g5 bxc5 e5 dxe5 b6 f3 Bb7 gxh5 g4 Bh3 g3 Bf1 Be4 Bg5 Bf5 Bc1 Bg4 fxg4 Be7 Qd4 Bd6 Qd1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 a4 c4 f6 c6 d6 g5 b5 c5 a3 g6 g2 h6 b4 h7 b3 h5 b2 c7 Ra6 c8Q+ Qd7 c6 Bg7 h6 Bf8 c7 Ne7 Nd2 Ra5 Nb3 Nd5 Bf4 Bg7 Rc1 Ne7 Rc5 Rb5 Nf3 g1Q Qb1 Bf8 Nc1 Qg4 Bg2 d5+ Kd4 f5 e4 Qh4 Re1 Rg8 h8Q Ra5 h7 Qh6 Qg7 Rh8 Qa6+ Qd6 Qc4 Qd8 c8N Qe8 Nb6 Nc8 Rh1 Nd6 Rh5 Qc8 Rc7 Be7 Ra7 Qg8 Rg5 Bd8 Bh1 Nb5+ Kc5 Bc7 Rh5 Na6+ Kc6 Nd6 Qc5 d4 Nd5 d3 Ne3 d2 Qc4+ Rd5 Bg2 d1Q Bh1 Qf7 Rg5 Ra8 h8B Qg8 Nh2 Qf3 Nhf1 Bb6 Ng3 Bc7 Qa1 b1Q Bg2 Qb2 Qb1 Nf7 Bh1 Ke7 e6 Nb4+ Kb7 Re5 Bg2 Kd6 e7 Qh3 e8R Qh6 Ra4 Ra5 Kc8 Nc6 Rh5 Rd5 Ra7 Rb5 Qcd3+ Kc5 Kd7 Nd6 Qf1 Rd5 e5 Kd4 e6+ Re5 e7 Ra5 Bg5 f4 Qa6 Qd1 Bd5 f3 Bf4 f2 Qf1 Qf3 Qb5 Kc3 Qc4+ Kd2 Rd8 Ke1 e8N Nc8 Nd6 Rf5 Nb5 Nd6 Nd4 Re5 Nd1 Rf5 Re8+ Re5 Nge2 Kf1 Ng3+ Kg1 Ne3 Rf5 Be4 Rfb5 Rc5 Kh2 Bd5 Kg1 Nh5 Kh1 Ng3+ Kh2 Qh7 Nc8 Be4 Rb8 Rg5 Qc2 Ne6 Nd6 Ba1 Qb2 Qg7 Rbb5 Nd4 Kg1 Rg4 Rh5 Rg5 Kh2 Rc5 Kg1 Bd5 Kh2 Ngf5+ Kh1 Ng3+
2k1r3/bQNR3B/2BR1pP1/2bb2q1/b1BN1P2/p1R1n3/1q2QK1n/BN2Q3 b - - 0 1 legal: proof: e4 c5 a4 g5 h4 d5 hxg5 b5 axb5 a5 d4 Ra6 dxc5 d4 Qe2 Rd6 Qd1 Rd5 exd5 Bg4 Rh3 Bf5 Rh1 Bc8 f4 Kd7 c4 e5 g4 h5 b4 f6 g6 a4 b6 e4 b5 h4 g5 h3 g7 h2 g6 e3 b7 a3 c6+ Kc7 c5 e2 Bb2 d3 Kf2 d2 Nf3 Qe8 d6+ Kd8 c7+ Kd7 b6 Ne7 g8B Bh6 Nd4 Rh7 Qe1 Rg7 Bh7 Nbc6 b8Q d1B b7 Rg8 Ra2 Qd8 Ba1 Bf8 Rc2 Nd5 Rc3 Ba4 Qa7 Rh8 Qa6 Ne3 b8Q Ne5 Qbb7 Nf3 c6+ Ke8 Rg1 Be6 c8N h1Q c7 Kd7 Na7 Qh5 Nab5 Qb8 c8B+ Kd8 d7 Bc5 Bg2 Re8 Nc7 Nh2 Bc6 Qg5 Qc4 Bd5 Qa2 Ke7 d8R Ba7 Rd6 Bc5 Qa8 Qb2 Ba6 Ba7 Qb7 Bc5 Re6+ Kd8 Bc4 Ba7 Qb5 Kc8 Rd6 Qh6 Rg5 Bc5 Re5 Qg5 Re7 Ba7 Red7 Bc5 Qd2 e1B+ Ke2 Ba7 Qbb3 Bf2 Ndb5 Qc1 Qe1 Bg1 Qac2 Nef1+ Qe4 Bgb6 Nd4 Bc5 Kf2 Qb2+ Q4e2 Ne3 Qb7+
BRb1k3/5p1R/nNn4N/bKn5/N6B/q2Q1Pp1/nBPrq2Q/1QQ1R3 b - - 0 1 legal: proof: e4 c5 a4 h5 g4 a5 gxh5 b5 axb5 d5 d4 Ra7 dxc5 d4 Bg2 Rd7 Bf1 Rd5 exd5 Ba6 Bd3 Bb7 Bf1 Bc8 Ke2 g5 Kd3 e5 Kc4 d3 h4 e4 b4 a4 h6 g4 h5 d2 h7 e3 b6 e2 b5 e1Q d6 g3 c6 a3 b7 a2 d7+ Ke7 c7 Qe8 d8Q+ Ke6 h6 Ne7 b6 Qe5 Qd3 Qg7 Bg2 Qg8 Nh3 Ng6 Nc3 Ke7 Bb2 Nf4 Na4 Nd7 b8Q Qg4 b7 Qf3 Qc1 d1N Kb5 Nd5 Rh2 Rg8 h8B Nb4 h7 Nc6 Bhd4 Qe3 h8Q Nc5 Bg7 Na6 Bgf6+ Ke6 Qhh7 Bb4 Bh4 Ba5 Be4 Qe2 f3 Qf8 Nf2 Qa3 Ng4 Rd8 Nh6 Rd6 Rb1 a1N Rh1 Nb3 Rh3 Bd7 c8N Nbc5 Ncb6 Rd5 Qf8 Bc8 b8R Rd4 Qe8+ Kd6 Qe6+ Kc7 Qa2 Rd7 Ra1 Rd6 Qab1 Nc3+ Kc4 Na2 Kb5 Rf6 Bd5 Kd8 Rh1 Ke8 Re1 Nd8 Ba8 Nc6 Ng8 Bd2 Bg5 Rh6 Rh1 N2b4 Qd1 Rh4 Qa2 Qe1 Rc1 Nd8 Qb1 Rh2 Qh6 Qe4 Qg1 Qe3 Re1 Na2 Qg2 Ba5 Bgf6 Qe6 Qhc1 Qe4 Qge2 Rg2 Rh7 Nc6 Nh6 Rf2 Bh4 Qe7 Qe6 Rd2 Qh3 Qe2 Qh2
Q3N2N/B1QP1Nb1/5r1p/3RnBR1/1B5r/4kbbR/RQK1p2P/1n3n1b b - - 0 1 legal: proof: e4 d5 f4 b5 c4 g5 cxd5 b4 fxg5 b3 axb3 Bh3 b4 Be6 b5 Bc8 d4 c6 e5 Bg7 d6 Kf8 d5 Qd7 e6 Bh6 exd7 Kg7 Qe2 Kg6 Qd1 Bf8 Kd2 Kf5 d8N Ke4 b4 e5 g4 a5 d7 f5 g6 a4 g5 h6 d6 c5 g7 f4 g6 f3 b6 c4 b5 a3 b7 a2 b6 c3+ Kc2 f2 Ne2 Ra3 Rg1 Ra5 Rg5 Ra3 Nf4 Nc6 b8Q Bb7 Bh3 f1B Nf7 Nf6 d8R Ng4 g8R Ra4 g7 Bg2 Qd2 Bf3 Ba3 Rb4 Qg2 Ke3 Ng6 e4 Qc7 Nce5 Nd2 Be7 Rge8 Rf8 g8Q Bf6 Re6 Bg7 Ngh8 Bc6 b7 Bd5 Rb1 a1B b8B Rd4 Rb2 Bc6 Kb3 c2 Ra2 c1N+ Kc2 Ne2 Ba7 Nc3 Bb4 Nb1 Rf6 Bd5 Rff5 Bb2 d7 Bb7 Rb8 Bc6 Rb5 Ba1 Rd5 Bb2 Nd6 Rf6 Qa8 Bc3 Ne8 Bb7 Nb3 Be1 Nc1 Bg3 Nd3 Nc4 Nd6 Nge5 Rc5 Ncd2 Rg4 Be2 Rfg5 Nec4 Ne8 Nf1 Rh4 Bg4 Qd2+ Kf3 Kb3 e3 Qb2 e2 Ne5+ Ke3 Kc2 Bh1 Nef7 Bgf3 Bf5 Ne5 Rh3 Rh4 Rd5+
B1RN2bR/n1rr1rNQ/8/kq1Q4/Pb1Q1n1N/p4KB1/2Q2ppP/3B3R b - - 0 1 illegal: No proof kernel
1r2k3/B1q1R1B1/4Rr1b/Q1QKp3/B4QR1/NP1Nppn1/1P2b2n/N4Br1 b - - 0 1 illegal: Other
1R6/2N2R2/RNbbB3/2pn2QN/p1PBQ3/q2nRQ1k/BnrpK2P/7r b - - 0 1 illegal: No possible last move
Q2BN3/R4QRQ/3K1B2/pP1p3p/rP2N1n1/b5R1/B6n/Nbqkr1nQ b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 d5 Kd4 h5 Ke5 e6 c4 a6 b4 Ke7 g4 Ra7 f4 Nh6 f6+ Kf7 g6+ Ke8 c6 Rg8 f7+ Ke7 g5 Qa5 f5 Bb7 g7 Ba8 c5 Rb7 c7 Qa4 c8Q Ra7 g6 Rb7 c6 Ra7 c7 Bc6 Nd2 Qa3 Ngf3 Be8 Bb2 Qc3+ Nd4 Qc1 Nc2 Nc6+ Kf4 Kd6 f6 Bd7 Bc4 Ng4 Rg1 Nd4 Rg3 Nf3 Ba2 Nfh2 Qh1 Be7 Qb8 Re8 g8Q Bf8 Bc3 Bg7 f8Q+ Re7 f7 e5+ Kg5 e4 Kf4 e3 c8N+ Ke6 Qa8 e2 Qh7 e1N Bf6 Nef3 Nd6 Ng1 Ne8 Bh8 g7 Bc8 g8R Bd7 Bg5 Bb2 Bf6 Ba3 Rg7 Bc8 Nc7+ Kd6 Qe8 Bf5 f8B Be4 Qf7 Bd3 Rg6 Bf5 B8g7 Re1 Bh8 Bd3 Rg7 Bf5 Bd8 Bd3 Kg5 Ke5 Ne8 Bg6 Nd4 Bb1 Nc2 Qd1 Ne4 Qc1+ Ne3 Kd4 Kf5 Kd3 Ke6 Ke2 Nc2 Kd1 Kd6 Rc7 Rg6 Rc3 Bhf6 Rb3 Rg7 Rb2 Bc4 Ra2 Bb3 Bb2 Bc4 Ra4 Ra2 Ba3 Na1 Ngf3 Rb2 Ng1 Ba2 a5 Rc2 Qd2 Rc7 Qc1 Ra7
5QN1/6RQ/4NppK/1QqP3B/bR3B1N/r3pR1b/n1PB1r2/2bnR2k b - - 0 1 illegal: No proof kernel
2nB1qN1/b2N2pP/2Q1r2N/p1R2pRn/Q4N1Q/rBk2b2/b3P3/KR3B2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 h4 d5 b4 f5 Kb2 a5 c4 d4 b6 d3 c6 d2 b5 Bc5 h6 Bf8 c5 Kd5 c7 Kd4 e6 Qd7 h5 Qe8 e7 Nd7 b7 Nb6 b8Q Qd8 e8B Qe7 h7 Qd6 h6 Bd7 c8Q Qe7 c6 Nd5 b6 Ra6 b7 Qd8 c7 Nde7 Nh3 Rf6 Rg1 Ba4 Nf4 Rc6 Bf7 Qe8 Bc4 Re6 Nc3 Bc2 Ne4 Rd6 Rb1 Ra6 Rg5 Nf6 Ka1 Ng4 Nf6 Qf7 Ng8 Be4 Qa4 d1B Qd8+ Rd6 c8R Bb3 Rc5 Ba2 Qbc7 Nc8 b8N Kc3 Qcc6 Nf6 Nd7 Nh5 Qe7 Bf3 Bb2+ Kd2 Bf6 Rd3 Qee4 Ra3 Bd8 Kc3 Qe7 Bd5 Qe4 Qe7 Qh1 Bf3 Qh4 Qf7 Ngf6 Rg8 h8N Bd6 h7 Re8 Ng8 Qf8 Nf7 Bb8 Nfh6 Ba7 Rd5 Re5 Rc5 Re6 Bb3+
1r3bbR/2N1P3/1krrp1B1/4P1B1/2pNQR1Q/1RqNQ2B/4Rp2/1K1nn3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 d5 c4 b4 cxd5 b3 f5 e6 f6 Qe7 fxe7 Bd7 axb3 Bc8 b4 Kd7 b5 Bg7 Ra3 Bh6 Ra1 Bf8 d4 c5 Kd2 Kc7 Kc2 h5 e4 f5 b4 a5 g4 f4 e5 c4 d6+ Kb7 d7 f3 d8Q h4 g6 h3 g7 h2 b6 f2 d5 a4 g5 a3 d6 a2 b5 Nc6 d7 Rh7 g6 Nh6 g8B Rf7 g7 Rf3 Nh3 Nb8 Qe2 Rf7 Nc3 Ng4 Bg5 Ra5 Bh7 Nc6 g8R Nb8 Re1 a1Q Qe4+ Nc6 Ne2 Qa3 Rh8 Qa4+ Kb1 Ra8 Bg6 Rf5 Nd4 Qa5 Re2 Ra6 Nf4 Ne3 Nd3 Nd1 Bh3 Qc3 Rh4 Rf3 Rf4 Rg3 Qe3 Nb4 Qe8 Rg2 d8Q Nc2 Qf7 Ne1 Qf5 Bd7 Qfe4+ Bc6 Qe8 Rg3 Qf7 Rg2 Qh7 Rg1 Qh4 Rg2 Qf5 Be8 Qfg4 Bf7 Qgf3+ Kc8 b7+ Kc7 b8R Bg8 Qfe4 Rc6 b6+ Kd7 b7 Kc7 Rd8 Kb6 b8N Rg3 Rf1 h1R Na6 Rgg1 Nc7 Rg4 Qhg3 Rh4 Ra8 Rh8 Qh4 Rg1 Ra3 Rg3 Rh1 Rg4 Nb4 Rg3 Rb3 Rf3 Qd2 Rd3 Qde3 Qd2 Qh6 Qc3 Bhf5 Bf7 Ndc2+ Rd4 Rhh4 Bg7 Bh3 Rb8 Qh8 Bg8 Nd3+ Ka5 Qh5 Rdd6 Nd4 Bf8 Qg4 Rc5 Rh8 Rcc6 Ncb5 Ka6 Qh4 Kb6 Nc7+
B3bB1Q/3pPQ2/1bp1PQpk/4Nr2/KB2n1Q1/1n1R1r2/1Nb2N2/R5Rq b - - 0 1 illegal: No possible last move, all moves rejected
q1bQR3/pNn2kQb/1n4N1/Bp2B2p/4rPrR/Q1B4P/3N1Kb1/6RB b - - 0 1 illegal: No proof kernel
Q1b3n1/N1BQR2Q/3R1Pr1/b5rq/p2qNRPp/5p2/4R1BK/2kn1N1B b - - 0 1 illegal: No proof kernel
B1RQ1n1N/B3qR1b/1PK5/3NB1pr/1pQ1pQ2/3Nn1P1/1Nb5/4Rqrk b - - 0 1 illegal: No proof kernel
3r2k1/p1N5/RNK1B2R/p1B1BQbp/P1bQ2Q1/rR3B2/2b2nqP/N2r4 b - - 1 2 illegal: Other
B3N2N/p1k3Q1/qq2P1n1/Rp1pb3/2rP2QR/1r2Q1BR/b2Rr2B/5NK1 b - - 0 1 legal: proof: f4 b5 g4 c5 b4 h5 bxc5 e5 fxe5 Na6 gxh5 Nb4 a4 Nd5 a5 Nb6 axb6 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 f5 c4 g5 h4 f4 e4 g4 d4 d6 b7 Kd7 b8B f3 c6+ Ke6 c5 Qe8 h6 Ne7 c7 Kd7 c6+ Ke6 h5 Qd8 h7 Ng8 h6 Qe8 Qe1 Qe7 Bf4 Qg7 Rh4 Be7 Bh2 Qg5 Ne2 g3+ Kg1 g2 Nd2 Bf6 Nf4+ Ke7 e6 Qd5 e5 Qa2 Qe3 Bd7 c8Q Qa6 c7 Bc6 Bg3 Bd5 Ra5 Ba2 Bc4 Bg7 Bd5 Qb6 Nf1 f2+ Kh2 g1R Qb7 Ke8 Ng6 Ne7 c8Q+ Qd8 Bc7 Rg2+ Kh1 Rg8 Nh8 Ng6 e7 Rf8 Qg4 Rf3 Qbc8 Rb8 Ba8 d5 Qcf5 Qd6 Qf6 Qa6 Rh3 Rc8 Bd6 Bf8 Qg7 Rc4 Rh4 Rf5 Bc7 Kd7 Bh2 Qb6 e6+ Kc8 Bcg3 Rf3 Qd2 Rb3 Qe3 Qb7 Nf7 Qb6 h8R Ra3 h7 Rb3 Nd6+ Kb8 Rg8 Kc7 h8R Rc1 Rh3 Rc5 R8h4 Rc4 Qf7 Bh6 Qg7 Bf4 Nf7 Be5 Nh8 Rb2 Bf4 Rg3 Rf8 Rf3 Bfg3 Re2 Qeg5 Rd3 Rf3 Rdc3 Rd3 Rb3 Qe3 Reb2 Nd2 Bb1 Ra2 f1Q+ Bg1 Qd1 Nf1 Rd2 B1h2 Re2 Kg1 Qe1 Ra3 Qea5 Rd2 Qaa6 Ra5 Ba2 e8N+
1R1N1q1N/5q1B/rnQ1RpP1/kp3NBp/1RqnQ3/r6P/B4KRQ/b7 b - - 0 1 legal: proof: f4 g5 fxg5 a5 c4 d5 d4 a4 e4 b6 c5 a3 c6 Be6 bxa3 Bh6 a4 Bf5 a5 Bd7 cxd7+ Kf8 exd5 Kg7 d6 Kg6 d5 Bf8 g4 e5 a4 h5 a6 c5 a5 c4 h3 e4 a7 b5 a6 c3 Rh2 e3 Qc2+ Kg7 g6 Kf6 g5+ Ke5 g7 Kd4 g6 Kc5 Bc4 Kb6 Nd2 f6 Nf1 e2 Ng3 Qe8 d8R Qe3 d7 Qd3 d6 Nc6 Nf5 Qd1+ Kf2 Nge7 g8B Bg7 Rg2 Nd4 Re8 Nec6 d8N Bh6 d7 Ne5 Nf3 Bf4 Rb1 Ka5 Ba2 Nc4 Ne5 Nb6 Nef7 Be5 Bh7 Rg8 Qb2 c2 Bg5 c1Q Nh8 Qc4 Re6 Qdb3 Qc2 Qbb4 Qe4 Qf8 Rb4 Rg7 Qf4 Rf7 Qh2 Re7 Ndf7 Ree8 d8R Re7 Re8 Rc7 Nd8 Rc6 R6e7 Qcf7 Rb7 Rc3 Rb8 Ra3 Re7 Nb3 Re8 Ba1 Re6 Nd4 Rb7 Rc8 a8Q Rc6 a7 Rd6 Rb8 Rc6 Rg3 Rd6 Qc6 e1Q+ Kg2 Qd1 Kf2 Qd3 Rg2 Qc4 Qe4 Nc8 a8Q+ Ra6 Qad5 Nb6 Qc6
B1k1b3/1q1p1N1B/3R1r1N/p1n2QpQ/R4nKQ/P3r1RP/1N3qN1/4B2n b - - 0 1 legal: proof: g4 h5 gxh5 e5 e4 c5 b4 g6 bxc5 Be7 d4 Nf6 f4 Ng8 f5 Qb6 f6 Kd8 fxe7+ Kc7 dxe5 Nh6 e6 Ng8 e5 Kc6 Bh6 Qc7 Bc1 Qd8 Kf2 Kc7 Kf3 f5 e8R a5 c4 b5 e7 f4 c6 b4 h3 b3 h6 g5 h7 b2 e6 Ra7 c5 Nh6 Na3 b1N Qd4 Ng8 Bg2 Na6 Bd2 Nb8 Be1 Ra8 Ne2 Nf6 Nc4 Rg8 h8N Ra6 Nb2 Rb6 Rg1 Ba6 a3 Nc3 Rd1 Kc8 c7 Kb7 c8Q+ Ka8 c6 Rb5 c7 Ng4 Qf2 Rg6 Qh4 Nd5 Bh1 Rf6 Rg3 Rf5 Rd4 Rc5 Ra4 Nf2 Rg8 Ka7 e8Q Bd3 e7 Rc3 Qeh5 Na6 e8B Rb3 Bg2 Nh1 Kg4 f3 Bg6 f2 Nf4 f1Q Bh7 Qf2 Rg6 Rf8 Rd6 Rf6 Bf3 Bg6 Ng2 Nf4 Ba8 Qe8 Re6 Qf7 Qe8 Re3 c8N+ Kb8 Ne7+ Kc7 Ng8 Nc5 Rd6 Qd5 Qe6 Be8 Qf5 Qb7 Nh6 Kc8 N8f7
1q3Q2/RN2Bpb1/Bp1Qnr1R/2N2p2/4nQP1/BPkN4/Rn1q1r2/K4N2 b - - 0 1 illegal: Other
kN1Rq1N1/Qqn5/3Rpn2/KB1Q1b2/Q1BP3B/1r2R1np/N3P1pr/7B b - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 d5 bxa5 g4 c4 Bh6 cxd5 Bg5 hxg5 Be6 Qc2 Bd7 Qd1 Bc8 d4 Kd7 Kd2 c5 Kc3 Kc7 a4 b5 f4 Kb7 a6+ Ka7 g6 h5 d6 h4 a5 c4 Kb4 e6 g7 g3 d7 c3 f6 c2 f5 Qe8 d8Q Qg6 f7 Qh6 f8R Bd7 f6 Qe3 f7 Qe4 Rh3 Qf3 Nc3 Rh7 Na2 Bc8 Bg5 c1Q Bg2 Qd5 Qa4 Ne7 g8N Bb7 Bh1 g2 Nf3 Qc8 Ne5 Qcc6 Nd7 Nf5 Re3 Ng3 Re8 Qc8 f8Q Qf3 Qff6 Be4 Qf7 Bf5 Rc1 Qfb7 Rc6 Rh5 Rd6 Rh6 Qdf6 Qd8 Qe5 Qe7 Rc8 Qe8 Qd5 Rh8 Rd8 Rh7 Nb6 Nd7 Be7 Nf6 Nd7 Rc8 Nb8 Ka8 a7 Rc1 Bf8 Rf1 Bh6 Rf3 Bg5 Nf1 Qg7 Rh3 Qc7 Rh2 Qb6 h3 Bh4 Rd7 Kc5 b4 Kb5 b3 Kb4 b2 Kb5 b1N Kb4 Qc6 Qbc5 Kb7 a8B+ Kc7 a6 Ng3 a7 Na3 Bb7 Nb5 a8B Rh7 Qca7 Rf7 Ba6+ Qb7 R8d7+ Kc8 Ka5 Nc7 Bc4 Rg7 Re7 Rg4 Rh7 Rf4 Rh8 Rf3 Re4 Ra3 Re3 Rb3 Nd7 Qb8 Bc6 Qb7 B6b5 Qc6 Qac5 Kb7 Nb8 Ka8 Rh7 Rb4 Rhd7 Qb7 Rd8 Rb3 Qa7+
NrBQB3/1q1p1r1n/2pq2Q1/Q5b1/1p1R3k/R3B2N/1R1P1P1N/K1R2bb1 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Nc6 c3 Na7 c4 Nb5 cxb5 Ba6 Be2 Bb7 Bf1 Bc8 h4 Kf7 a4 Kf6 b6 e5 a6 g5 b7 c6 b8Q g4 h6 g3 a7 e4 a5 e3 h7 g2 a6 Bd6 h5 Kg5 f6 Qf8 h6 Bb7 f7 Bf4 Ra2 Qd6 f8R Qd5 Nf3+ Kg4 Qa4 g1B Kd1 e2+ Kc2 e1Q Kb2 Bd6 Be2 Be5+ Nc3 Qc4 Qd8 Bb8 Ne4 Bbh2 Neg5 Rb8 a8B Kh5 a7 Qf4 Qaa5 Qg3 Ka1 Nf6 Nh3+ Kg4 Rb2 Bc8 Bb7 Qd1 a8N Rg8 h8Q Rg7 h7 Qh4 Qg8 Rg6 h8R Qg3 Rf7 Rg5 Qg6 Nh7 Rf5 Qe1 Rd5 Qc7 Rd4+ Bf4 Nh2+ Kh4 Bh5 Qe7 Re8 Qf6 Re3 Rf5 Ra3 Qe7 Qgg8 Rf8 Be8 Rf7 Qg6 Qf6 Rc2 Qe7 Bb2 Qb6 Ba6 Qb7 Bc3 Qf6 Rb2 Qe7 Rc4 Qf6 Bd4 Bg5 Be3+ Qd4 Ng4 Qd6 Rd4 Bh2 Rc1 Bg1 Bb5 Qb6 Bc4 Ba6 Bb5 Qb7 Bf1 Bc4 Be2 Bd5 Ba6 Bg2 Nh2+ Rf4 Rdd3 Rf7 Rd5 Bf1 Rdd3 Qb6 Bc8 Qb7 Rd4+
1K1N1Q2/Bp6/p2pQrB1/bBP1qRNR/1k1Nq3/3br3/1P2Q1q1/RN4n1 b - - 0 1 illegal: No proof kernel
2Q3r1/Qn2r2p/Bpr2B2/kN3bPB/bP1R4/2b4N/2Q1pR1K/N4RQn b - - 0 1 legal: proof: e4 c5 d4 f5 exf5 g5 dxc5 b6 h4 Nc6 hxg5 Nd4 a4 Nc6 a5 Qc7 a6 Qb7 axb7 Nb8 f4 Kd8 Kf2 Kc7 Kg3 e5 c4 a5 g6 d5 c6 d4 f6 a4 f5 a3 c5 d3 f7 d2 g7 e4 f6 a2 Nc3 e3 Be2 Ra3 Rh4 Bd7 Nh3 Be6 Nb5+ Kd8 c7+ Kd7 c8B+ Kc6 Qc2 d1B Rd4 Ra7 Bh5 e2 Kh2 Nh6 g8Q Ra3 g4 Rb3 Bg5 Na6 b8Q Rf3 Qa7 Bg7 f8R Rc3 f7 Nf5 Bf6 Ng3 Rb1 a1R Rc1 Nb8 Ba6 Nd7 Rb1 Bf5 Rc1 Bh6 Qg5 Rg8 Qe3 Rh8 g5 Rg8 Qg1 Bg7 Be5 Raa3 Qb1 Bg4 Rc4 Kd5 c6 Bc2 c7 Nc5 c8Q Nh1 Rf1 Ba4 Qc2 Nb7 Rcf4 Bd7 R4f2 Rc5 Rd8 Re3 f8N Rc6 Ne6 Re4 Bc3 Kc4 Nc5 Re7 Nb3 Bf5 Na1 Kc5 Bd4+ Kb4 Rd6 Ka5 Be5 Bh6 Bh8 Bg7 Rd3 Bc3 Rd4 Ng3 Bf6 Nh1 b4+
Nk1NBQ2/2pnP3/1N1b2nr/pnQR3Q/2rBbR2/3pK1R1/2PQ4/2Bb4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Nf6 g4 Rg8 h5 Ke7 g6 Ke8 g5 Bf8 h6 Rh8 Bh3 Ng8 Bg2 Qf6 Bf1 Qg7 hxg7 Be7 Qd4 Ba3 Qd1 Bf8 Kd2 Kd8 b4 f5 e4 d5 b6 h5 b5 a5 e6 d4 b7 h4 e7+ Kd7 e8Q+ Kd6 e5+ Kc5 e6 Kd6 b6 f4 e7 h3 Nf3 h2 Na3 Rh7 Ne5 f3 Nd7 f2 Bb5 f1B Nc4+ Ke6 Ra4 d3 Ke3 Rh6 Qd2 Na6 b8N Nb4 b7 Ra6 Ndb6 Be2 Nc6 Na2 b8B Nc3 Ba7 Nf6 g8R Bg7 Na8 Bd1 Bd4 Nd7 Ncb6 Be5 g7 Bb7 g6 Bd6 Rf1 h1N Rf5 Ng3 Rd5 Rh4 Qf8 Rg4 Qf3 Rh4 Qh5 Nge2 Rb4 Ng1 Ba4 Nf3 Rc4 Nfe5 Nd8+ Kf6 Bc6 Nb5 Ra4 Nb8 Be8 Nd7 Rh8 Rf4 g8Q Rg4 g7 Rf4 Rc5 Be4 Qc4 Rh4 Rd5 Rg4 Nb7 Ke6 Qc5 Ng6 Rf8 Rf4 Rf7 Rg4 g8Q Rf4 Qf8 Rh4 Nc8 Rc6 Rf3 Rh3 Qb6 Rc4 Qc5 Rh1 Rg3 Rh4 Qhf3 Rh6 Qh5 Rc3 Bf6 Bh1 Qhh2 Nb8 Rh4 Be4 Rf4 Rc4 Bf7+ Kd7 Bd4 Rc3 Qh5 Rc4 Qa3 Kc6 Be8+ Nd7 Ncb6 Rb4 Nc5 Rc4 Ne6 Kb7 Nd8+ Kb8 Qc5
bN5K/BR3Qp1/B3N3/1Qb2rr1/B1b1Q1P1/1P6/k2ppQq1/1RR1Nb1n b - - 0 1 illegal: No proof kernel
2B1KnB1/1Q2b3/N1Rr1B1r/P2p3Q/1rRpQ1b1/1QnPN3/1prkN3/2R5 b - - 0 1 illegal: Other
R4b1k/1p5b/b7/nQ2N1N1/rPpBQ1b1/3NQB2/RnR1rp1P/K2QB3 b - - 0 1 illegal: Other
Bb4BN/2Pp2q1/Q1bpn2r/1NnP3R/1K2Q3/5N1p/Qpb2BRQ/2R2k2 b - - 0 1 illegal: Other
N4QQB/b1br3P/4b1pR/Bk6/1pNp2nr/RPQ5/2KpNqQ1/3BR3 b - - 0 1 illegal: Other
k1B1r3/N1r3Br/1n3N2/2N3p1/1Kb1pRQ1/Pp1Bq1R1/pP3B2/R1bQQ3 b - - 0 1 illegal: No proof kernel
2r5/5p2/q2N2n1/2rpRP1k/1BBB1pRQ/Nr2p1b1/N1Q1PRQ1/1B2n1K1 b - - 0 2 illegal: Other
3BB1B1/2R1Q1Pp/4N1pN/2p1q1RQ/N3n1pP/Rn1K2bQ/2n1rN2/2r2k2 b - - 0 1 illegal: Other
1n2Q3/1pb1pk1n/1RR4B/1Q1r2n1/p1K2p2/1NN1B3/1P1NPQB1/1b1q1N1R b - - 1 2 illegal: No proof kernel
3k1B1K/3bNp2/3p1BB1/Bqr1Q1pR/2N1p1P1/bQ3P2/5Rrq/Q3Nn1R b - - 0 2 legal: proof: e4 b5 h4 c5 d4 g5 dxc5 d6 a4 Kd7 axb5 Ke6 h5 Nd7 e5 Kf5 e6 Ke5 exd7 Ke6 Qd3 Qa5+ Qd2 Qa2 Qd1 Qd5 Nf3 Qf5 Ng1 Qg6 hxg6 Bh6 Ke2 Bg7 Ke1 Bf8 Rh3 a5 Ke2 h5 Ke3 h4 Ke4 a4 d8B Kd7 Kf5 e5 c4 a3 g4 a2 b4 Be7 g7 Rh7 b6 Bf6 b5 Ra5 b7 Ra6 b8Q Ra4 b6 Ra3 b7 Rc3 Nd2 Rg3 Bb2 Re3 Be7 Rd3 Bf8 Bd8 Ngf3 Ra3 Bd3 Ne7+ Kf6 Rh6+ Bg6 e4 g8N Nf5+ Ne7 Re3 c6+ Ke8 c7 Re2 c5 Rh5 c6 Nh6 Kg7 Bd7 c8Q Nf5+ Kg8 Rh7 c7 Ng3 Bf6 Rh6 Rb1 a1Q Rb2 Qa6 Qa1 Re3 Rh2 h3 Rb1 Bb5 Qf5 Bd7 Qfe5 Rc3 Rg1 Qd3 Re1 Qd5 c8R Qb3 Rg1 Nf1 Ne1 Rc6 f3 Qa4 Qa7 Qb5 b8B Rc4 Rc6 Bb6 Bc7 Bc5 Q7a2 Ba3 Ba5 Rc1 Rc7 Kd8 Qb3 Rh4 Bb4 Rh5 Rc2 Rh6 Ra2 Rc5 Nc4 Rh7 Raf2 Rh5 Rhg2 h2 Kg7 h1Q Rh2 Qg2 Rgh1 Rh3 Bd2 Rg3 Rh5 Qh2 Kh8 Rg2 Ba5+
2R2QNB/pr1qQBKR/bpB5/2p5/1P1R1p1b/Nk2Q1Pr/n7/4B1qN b - - 0 1 illegal: No possible last move
qn1Nr1N1/3k1pBQ/1pp1BrR1/2R1Q2p/2n3P1/Q7/2qBNP1K/2b2RN1 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 g5 bxa5 b6 d4 g4 e4 g3 e5 Nc6 e6 Nb8 d6 Bd7 d5 Bg7 hxg3 Kf8 exd7 Bh6 g4 Kg7 g5 Kg6 Bb2 Bg7 Bc1 Bf8 a4 Kf5 g4+ Ke5 g6 h5 a6 c6 a5 e6 a7 Na6 g7 Kf6 Qd4+ e5 Bg2 Nb8 Kf1 Qc8 d8R Na6 d7 Ke7 d6+ Ke6 Nc3 e4 Nce2 e3 Bd2 Nh6 g8N Rh7 Rc1 Rg7 Rc5 Nb4 a6 Rb8 a8Q Rb7 a7 Rg6 Be4 Rc7 Kg2 Na6 Kh2 Nf5 Qh8 Bh6 Qh7 Bg5 Qb8 Rf6 a8Q Ra7 Qc7 Nb8 Bf3 Ra1 Qa3 Re1 Rf8 Qb7 d8B Qa8 d7 Nd6 Bg2 Nc4 Qg3 Bf4 Bd5+ Kd6 Be7+ Kc7 d8N Kd7 Re8 Bh6 Qe5 Bg5 Bf8 Bh6 Ng3 e2 Bg7 Bg5 Re6 Bf4 Bc3 Bc1 Bd2 Rd1 Qea1 e1Q Qe5 Qe4 N3e2 Qc2 Rd6+ Kc8 Re6 Re1 Rd6 Rf4 Rg6 Rf6 Nf3 Kd7 Rf1 Qaa4 Nfg1 Qa8 Nd4 Re3 Nde2 Re4 Qea1 Re7 Qe5 Re8 Be6+
1NBR3Q/Np3pp1/R1P1n3/2Rq1rp1/2p1r1kQ/2PB1n2/1B1b2N1/K2Q2Q1 b - - 0 1 illegal: Other
k3QB2/Br1r1nB1/3q1b1N/1Q2pq2/1NB1P1pn/4R1P1/bq4nK/1RRNQ3 b - - 0 1 illegal: No proof kernel
5R2/1n1r1kbK/b2n1N2/2p1p1B1/b1PQ1N2/bBqBPR1R/1r2QrQ1/5NQ1 b - - 0 1 illegal: No proof kernel
1R1k1n1B/5R1r/QK1p1p2/5PN1/1Q2qb1n/QnB3rb/1NBP1r2/R1nN1Q2 b - - 0 1 illegal: No proof kernel
B1Q1r3/Bp3R2/q1N3Nr/1Rb3n1/RNQ2p1N/1b2kP2/rP1n4/2rBKb1Q b - - 0 1 illegal: No proof kernel
2Qq4/r1Qn1rQ1/2K3p1/2p2nPn/3QR1RN/2P1NB2/b1r2RNp/1kB1B1b1 b - - 0 1 illegal: No proof kernel
2Q3q1/1Qp2QR1/2Ppr2n/nr1bk3/1bQr4/1BBP2b1/BR1NK2p/1N2RN2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 c4 Kf7 b4 h5 f4 e5 g4 a5 c5 d6 b6 h4 b5 e4 g6+ Kf6 b7 e3 b6 h3 c6 a4 g5+ Kg7 Qe2 a3 Bb2+ Nf6 Qc4 h2 Ne2 a2 Rg1 Ra5 Ng3 e2 Bc3 Nd7 b8Q Rb5 b7 Rh6 d3 Rh4 Bg2 Qe8 Nf1 Ra5 Bd5 Kh8 g7+ Kh7 g8B+ Kg7 g6 Kh6 g7 Ng4 f6 Kg6 f7 Ne5 f5+ Kf6 Kd2 e1B+ Ke2 Be7 f8Q+ Qf7 Rg3 Be6 Qfc8 Bd8 Qa8 Qe8 b8R Rb5 Qab7 Nh6 Bf7 Be7 g8Q Rd4 Rg7 Neg4 Qh7 Ke5 f6 Ne3 Bg8 Qf8 f7 B7h4 Qg6 Qd8 f8N Bhg3 Nh7 Qf8 Bf7 Qg8 Nf6 Bd2 Ne4 Bde1 Qb4 Nc4 Ned2 Na5 Bb3 Bd5 Qc4 Rb4 Na3 Rb5 Rc1 a1R Nab1 Ra2 Be6 Ra4 Qf7 Rab4 Ne4 Bd2 Re1 Ra4 Ba1 Bc3 Ned2 Bb4 Bc3 Bc5 Qa6 Bg2 Bd1 Ra2 Qb3 Bf3+ Ke3 Rb6 Ne4 Rf2 Bc2 Bg2 Bd1 Rf6 Ke2 Nb7 Ned2 Na5 Qbb5 Be4 Ba2 Re6 Qc4 Rb2 Rb4 Bd5 Qab7 Rb3 Ra4 Rb6 Rb4 Rb5 Rb2 Bb4 Bdb3
6nn/1bPK1PNB/pBBB1R2/N3BpQN/5pR1/1k6/q5Rb/5qB1 b - - 0 1 illegal: Other
BkB5/N1q1B3/2RN3N/NbK3nb/rpPR1P1R/q5N1/1Qq3r1/1N3b2 b - - 0 1 legal: proof: d4 a5 f4 c5 dxc5 f5 b4 Kf7 bxa5 Qe8 e4 Nf6 exf5 Ng8 g3 Qd8 f6 Ke8 h4 g5 Be3 Nc6 Bc1 Nd4 g4 Nf5 gxf5 g4 Bd2 Bh6 Bc1 Bg5 hxg5 Ra7 Rh6 Ra6 Rh1 Ra8 Ke2 b5 Ke3 h5 Kd4 d5 c4 Kd7 a4 Kc7 f7 g3 f8N g2 a6 e6 c6 h4 g6 h3 a7 e5+ Kc5 e4 a5 d4 f6 d3 a6 h2 g7 d2 f7 e3 Qc2 d1B Qb2 e2 Ng6 e1Q f8R Qf6 Ne2 Bg4 Ng3 Qe4 Ne7 Qeg6 Rd8 g1Q+ Rd4 Qe6 Bh3 Nh6 g8N Nf7 Nh6 Qc2 Ra5 Rag8 a8B Qc8 a7 Bh5 Ra6 Qe3 Rb6 Qd8 Bc8 Ng5 Bd2 Qa3+ Bb4 Qd7 Ra6 Bde2 Rb6 Bf1 Ra6 Kd8 c7+ Ke8 Nc6 Qf7 Rg1 h1B Na5 Bc6 Rh1 Rg7 Rh4 Rg6 Be6 Qh7 c8N Qc7 Nd6+ Kd8 Bc8 Be8+ Kd5 Rh7 Bc5 b4 Rc6 Rg8 Bab7 Re7 a8N Re2 Nb6 Rg2 Ba8 Rh8 Bh3 Bd7 Nbc8 Rh7 Ra6 Bb5 Na7 Re7 Rc6 Re1 Nd2 Ra1 Bg4 Qad3 Bd7 Ra4 Bc8 Qa3 Nb1 Qg7 Rb6 Kc7 Rc6+ Kb8 Ndb7 Qgh7 Be7 Qf7+ Kc5 Qg7 Nd6 Qgh7 Bd8 Qc7 Be7
n1N2r2/2Rq2R1/1r2RPB1/1k2KQ1q/p4B1n/4RN2/Pp1NRbB1/2Rq4 b - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 cxd5 c5 exf5 c4 h4 c3 hxg5 c2 b4 Bd7 g6 Bb5 f3 Bd3 g5 Be2 Ba3 c1R Bb2 Rc5 bxc5 Bd3 Bc1 Be4 Bc4 Bd3 Ba6 Bf1 Bd3 Bh3 Bf1 Bg4 fxg4 Qa5 Rh4 Qb6 Rh1 Qd8 Kf2 Kd7 Kf3 b5 Kf4 h5 d4 a5 f6 h4 c6+ Kd6 g7 h3 c7 e6 c8N+ Kc7 d6+ Kc6 d7 b4 g6 h2 d5+ Kc5 g5 b3 d6 a4 Qf3 b2 Bg2 Nc6 Nd2 Nb8 Ke5 Qb6 d8R Qb7 d7 Qb5 Re8 Ra6 d8R Nh6 g8B Rb6 g7 Nf5 g6 Qd7 Bh7 Kb5 g8R Bc5 g7 Na6 Bg6 Nh4 Qf5 Bf2 Ngf3 Nc7 Re1 h1Q Re2 Na8 Re7 Qh3 Rge8 Rf8 g8R Qg4 Rgg7 Qh5 Ke4+ e5 Re6 Qc7 Kd5 e4 Rdd7 e3 R8e7 Qd8 Ke5 Qe8 Rd3 Qf7 Rc7 Qd7 Re1 e2 Re3 Bg1 Rf1 e1Q Rf2 Qd1 Rfe2 Bf2 Nb1 Rg8 Rd3 Qh6 Bf4 Rh8 Rde3 Rf8 Nbd2 Qh5 Rac1
1rB4R/2n5/pBk4R/qNr2Q1q/N1qBN2P/b1R1p1P1/2N2Nb1/NK6 b - - 0 1 legal: proof: c4 b5 e4 h5 a4 g5 axb5 d5 cxd5 f5 exf5 h4 Na3 g4 Nb1 Nc6 g3 Nd4 gxh4 g3 h5 g2 Ra4 Ne2 Ra1 Ng3 fxg3 Qd7 Nc3 Qd6 Nb1 Qd8 b4 Kd7 d4 c5 Kd2 e5 Kc2 a6 f6 c4 f7 e4 h6 c3 b6 e3 d6 Qf6 h7 Nh6 b5 Qe6 d5 Bg7 f8N+ Ke8 b7 Nf7 b8N Ra7 b6 Bb7 d7+ Ke7 d8N Kd6 Ndc6 Bf6 Qf3 Qe7 Nd4 Bg7 Nb5+ Kc5 d6 Be5 d7 Bd5 d8B Qd7 b7 Bc6 Qf5 Qe7 Nbd7+ Kd5 b8N Qb4 Nf6+ Kc5 Bb2 Qc4 Ne4+ Kd5 Nbd2 Bd7 Kb1 Rg8 h8R Ng5 Nc6 Rc7 Nh3 g1Q Nhf2 Ne6 Ncd4 Rc5 Ra3 Nc7 Nfe6 Bc6 N2b3 Rf8 h3 Qh2 Nc2 Qb4 Bd3 Qa5 Nba1 Bb7 Be2 Kc6 Bg4 Bd6 Rb3 Nd5 Bb6 Nc7 Rh6 Rb8 Ra3 Re5 Rb3 Ba3 Rh8 Ba8 N6c5 Bb7 Na4 Rc5 Rd1 Qh1 h4 Qf3 Bh3 Qh5 Rdd8 Bc8 Rh6+ Be6 Nf6 Bd5 Rdh8 Bg2 N6e4+ Ne6 Qg5 Qg6 Ne1 Nc7 Be6 Qh5 Qf5 Qg6 Bc8 c2+ Ka2 c1Q Bd4 Qc4 Nec2 Qg8 Kb1 Qc4 Nf6 Qgf7 Rc3 Qh5 N6e4+
qn1RN3/R4BBP/2R1nR2/1R1BP2q/1p5Q/p2N4/2K1N2R/r1bnk2q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 b4 c4 Nd7 cxd5 Nb8 b3 a5 Ra2 Ba6 Ra1 Bb5 axb5 a4 b6 a3 Nc3 Ra4 bxa4 Qd7 Nb1 Qd8 e4 Kd7 h4 c5 d4 g5 Kd2 f5 h6 g4 a5 g3 e6+ Kd6 e7 f4 e8N+ Kd7 a6 f3 d6 Ke6 h5 f2 e5 Kf5 d7 Ke4 h7 c4 b7 c3+ Kc2 g2 h6 Bg7 d5 Qc7 d8R Qc8 a7 Nc6 a8B Qc7 b8R Qb7 d6 Qe7 d7 Qg5 Nh3 g1Q Rb5 Q1g2 Rc8 Qh5 d8R Nf6 Bc4 Nd5 Rh2 Nb8 Qe1+ Kf3 Rc6 f1N+ Nf2 Nc7 Bf7 Ne6 Bd2 Rf8 h8R Rg8 h7 Bh6 Bg5 Rg6 Bh4 Bc1 Bf6 Rh6 Bg7 Ne3+ Kd3 c2 Nc3 Rf6 Ne2 Nd1 Rd7 Qh1 Ra7 Rg6 Rb1 Rg1 Rg8 Bf4 Rh8 c1Q Rb3 Qa1 Kc2+ Be3 Rb1 Bc1 Rf8 Qd4 Rb3+ Qe3 Rd3 Rf1 Rd8 Qe4+ Nd3 Qd5 Qh4 Ke3 Nf2 Rg1 Kb1 Kd2 Bb7 Ke1 Kc2 Rg3 Rcd6 Qdg2 Bd5 Rb3 Rc6 Rb1 Bg8 Qgf3 Rf6 Ra1 Bf7 Qe3 Raa5 Qa7 Ra4 Qb7 Ra7 Qa8 Nd3#
5N1B/2NrN3/BPBR1nq1/rRKnpQ2/q4NRp/2Pr4/1N2k1N1/4q3 b - - 0 1 legal: proof: d4 b5 f4 c5 dxc5 f5 e4 b4 exf5 b3 f6 Nc6 g3 Ba6 axb3 Bb7 b4 Nb8 b5 Bc8 f5 g6 h3 Bh6 Na3 Na6 Nb1 Bf4 gxf4 Nb8 Rh2 g5 Qd3 g4 Qd5 g3 Rh1 Bb7 Qd2 Bf3 Qd1 Bg4 hxg4 Qb6 Bc4 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 d5 Kd4 a5 b4 h5 b6 a4 b7 a3 b5 a2 g5 g2 c6 h4 c7 e6 c8B Qd6 g6+ Kf8 f7 Kg7 f8N Kh6 f6 Ra5 f5+ Qf4+ Kc5 Kg5 f7 d4 f6 d3 g7 d2 Nh3+ Kf5 Qg4+ Ke4 Na3 Ke3 Qf5 g1Q Bd7 Qfg3 Ng6 Nh6 f8N Ra8 g8N Qf3 f7 Qgg3 N8e7 Qe4 Rg1 Qef4 Nc4+ Kf3 Bb2 Ra4 Rd1 Nc6 b8R Rh7 Bh8 a1Q c3 e5 Nb2 Ra5 Ne6 Ng4 f8N Nb4 Bc6+ Nd5 Nc7 Nf6 Rb6 Qe1 Rg4 Qb1 Be2+ Ke3 Bd3 Qe4 Nhf4 Qa4 Bc4 Qd3 Ng2+ Ke2 Rb1 d1R N6f4+ Kf1 Bb7 Kf2 Rd6 Qg3 Bc6 Rd3 Neg6 Rd7 Ne7 Ra7 b6 Kf1 Nh5+ Ke2 Ba6 Ra8 Nc4 Ra7 Rb5 Ra8 Nb2 Ra7 Rf4 Qg6 Rg4 Ra8 Bab7 Ra5 Nhf4+ Kf2 Ba6 Kf3 Nh5+ Ke2 Nhf4+
1Nb1k2N/1p1Bp3/Bb1n2K1/1R3R2/PRPB1N1q/1Q1Rr1R1/1q6/2b2bR1 b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Qc7 f7+ Kd8 f5 Qb6 bxa3 Kc7 a4 Kc6 a5 Qd8 g5 Ra6 h3 Kc7 h4 Rf6 gxf6 Kc6 Be3 g5 Qc1 g4 Qd2 Na6 Qd1 Nc7 Bh6 Ne6 Bc1 Ng5 hxg5 Qb6 Rh4 Qc7 Rh1 Qd8 Kf2 d5 Ke3 Kd7 Kf4 h5 a4 g3 c6+ Kc7 a6 h4 g6 d4 Kg5 g2 a7 h3 a8R d3 g7 d2 Nf3 g1B Bb2 h2 Ne5 Bd7 Ng6 Rh4 Nh8 Qe8 Kg6 Qb8 Nc3 Kd8 c7+ Kc8 Ne2 Rd4 Ra3 Rc4 Bd4 Bc6 Nf4 Kd7 c8B+ Kd8 Rd3 Bf2 Ra5 Qe5 Rg1 h1Q Rb5 Bd5 Be6 Nh6 g8R Bc6 c3 Bd7 Qb3 d1B Rb4 Kc7 Rgg3 Bg7 f8R Be2 f7 Bc8 f6 Nf5 Rd8 Qh3 f8R Qh4 f7 Bh6 Rd5 Nd6 Rdb5 Be3 Re8 Bf2 f8N Rc6 Nd7 Rb6 Bg2 Bf1 Ref8 Qe2 c4 Qb2 Rff5 Bg1 Rg7 Kd8 Bc6 Be3 Nb8 Bc1 Ne2 Bhe3 Nf4 Bf2 Rbd5 Bfe3 Bb5 Bg1 Ba6 Ke8 Rdb5 Rc6 Bc3 Bb6 Bd4 Rc5 Rgf7 Re5 Rfg5 Qe2 Rff5 Re3 Rg1 Qd2 R5g3 Qb2 Bd7+
3rb1Q1/1q1rP2N/Bk4pN/n1R3B1/1n3P2/2R1N3/1Bp1p1B1/1R1BBb1K b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 e5 exf5 d5 cxd5 e4 d4 Ke7 b4 Ke8 bxa5 Bd6 Qd3 Kf8 Qd1 Be5 dxe5 Ke8 h4 Kd7 a4 b5 f4 c5 Kf2 Kc7 Kg2 g6 f6 c4 f7 e3 f8R c3 h6 c2 d6+ Kb7 h7 b4 h5 b3 d7 b2 h6 Nf6 a6+ Kc6 e6 Ra7 a5 Qb6 d8B Nh5 Na3 b1B Rh3 Rg8 h8B Rgg7 h7 Ra8 a7 Qc7 a6 Bd7 Nc4 Qa5 Rf5 Qb6 Nf3 Nf6 Bd2 Ng4 Be1 Qb5 Ng5 Qb3 Kh1 Rg8 Bb2 Re8 h8N Qa4 Nhf7 Rg8 Nh7 Qb5 Nh6 Ba2 Rb1 Be8 Bg5 Nf6 e7 Qb7 Qd8 Nd5 Be2 Rf8 Bd1 Nb4 Rb5 e2 Ne3 Be6 Qd5+ Kc7 Rc5+ N8c6 Qa2 Rb8 a8B Kb6 a7 Rd8 Qb3 Bf5 Qg8 Rd7 Rg3 Na5+ Rf3 Qb8 Bb7 Bh3 a8B Bf1 Ba6 Qa7 Bd5 Qb7 Rh3 Bf7 Bg2 Rfd8 Nef5 Be8 Rhc3 Rb8 Ne3 Ra8 Nf6 Rad8 Nh7
r3BBN1/RNR1r1P1/K1PR1Qp1/2p3NR/8/R3rpb1/nBk5/1r2q2R b - - 0 1 illegal: No proof kernel
2BR4/7N/2PrR1N1/q1BbPr1N/6p1/2kNbp2/2BN1p1p/2N1QbRK b - - 0 1 illegal: Other
1bnk3b/1R2r2R/2n2PNP/1b3qR1/B1Nn2RN/2Br2Rr/K1Q3Bn/6R1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kb3 e5 f4 a5 c4 e4 h4 g4 h6 e3 h5 d4 b6 a4+ Ka2 g3 b4 e2 c6 e1B c7 d3 h7 g2 f6 d2 f7+ Ke7 f5 a3 f6+ Kd7 c5 Ba6 c8B+ Kc6 b5+ Kd5 h6 Nc6 b7 Qd6 b8R Qe6 b6 Na5 c6 Bg7 f8N Be2 c7 Ne7 b7 Bb5 Rh3 Qf5 Rg3 Kd6 Nf3 g1N Bg2 Nac6 Ng6 Re8 Qc2 d1R h8R Rd3 Rh7 Bh8 Bd7 Nc8 Bb2 Re7 Nfh4 Nf3 Bc3 Nh2 Nd2 Bf2 Rg4 Bg3 Rg1 Ra4 Ra8 Rae4 b8R Ree3 Rb7 Rf3 Ka1 a2 Ra5 Rfe3 Kb2 a1N Ka2 Nb3 Be8 Ke6 Nc4 Nbd4 Ra3 Be5 Rb3 Rh3 Rg5 N8a7 c8R Bb8 Rd8 Nc8 Rg4 Qf3 Rd5 Qf2 Rdg5 Qf5 Ra3 Rc7 Bf7+ Kd7 Be8+ Kd8 Rb3 Re7 Ra3 Na5 Bd7 Ba6 Bb5 Nac6 Ba4 Bb5 Bb2 Rd2 Rag3 Rd3 Bc3
BQ4R1/BrP5/2bqnBnk/K1R4B/3B2b1/1rrNNR2/Pn5N/2bB1r2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 g5 Kb4 Kg7 c4 d5 f4 e5 h4 b5 h6+ Kh7 a6 e4 f6 e3 a7 e2 f7 e1N f5 g4 h5 g3 f6 d4 Rh3 d3 Na3 d2 Nc2 g2 Be2 Qd4 Nf3 g1R Ne3 Rg7 Qb3 d1R Ka5 b4 c6 Be7 f8R Qf4 c5 Qg5 c7 Qg4 c6 Nd7 f7 Nd3 Nh2 Rg1 Rf3 Re1 Bd1 Rb8 a8B Qe6 Qb2 Bb7 c8B b3 c7 Ba3 Rb1 Ne7 Rg8 Bc6 f8B Rg3 Bg7 Rb4 Bf6 Nf8 Bd2 Rh3 Rc1 Neg6 Rc5 Qd6 Bg4 Rf1 Bdc3 Rc4 Bcd4 Ne6 Ng2 Be8 Be3 Qd8 Rff5 Qd5 Rb5 Re1 Rf8 Rf1 Ba7 Nd4 Rc5 Bc6 Rc8 Re3 Rf3 Qd6 Qb1 b2 Re8 Re2 Ne3 Ne6 Bd4 Rc3 Rc8 Re8 Bf6 Kg8 h7+ Kf7 h8N+ Kg8 h6 Kh7 Bd4 Rg2 Qc2 b1B Qb3 Bc1 Nf7 Rb2 Bh5 Rf8 Qb6 Rbb3 Ne5 Nb2 Re8 Bf5 Nd3 Kg8 h7+ Kf7 Ne5+ Kg7 h8B+ Kh6 Bf6 Bg4 Nd3 Rg8 Re7 Rc8 Re8 Rb8 Qb5 Rb6 Rg8 Rb8 Qa6 R8b4 Qc8 Rb7 Qb8
K2n1R2/1RP3k1/2N5/1NNqq1N1/2Q1RN2/1rPqn2b/Bq1qr2B/bN2B3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 a5 Kc4 g5 Kd5 e5 f4 g4 b4 d6 h4 e4 c3 g3 h6 a4 f6 g2 b6 e3 b7 a3 c6 e2 b5 e1Q b6 a2 h7 Nh6 h5 Qe2 f5 Nd7 b8N Qc2 b7 Ng4 h6 Qe7 Bd2 Qa4 Be1 Nc5 Qd3 Qa7 Rh4 Qa5 Ne2 g1Q Qc4 Ne5 Re4 Qg4 Nd4 Qh3 Nb5 Rg8 h8B Qe3 c7 Rg2 h7 Ne6 Na6 Ng4 Kc6 d5 b8N d4 Nc5 d3 Bg7 d2 h8N+ Kg8 Ng6 d1Q Nf4 Re2 f7+ Kh7 f6 Qed2 Bg2 Ne3 Bf3 Bd7+ Kb7 Q1c2 Bh6 Qcd3 Nc6 Ra6 Kb8 Nd8 Bg5 Bh6 f8R Bh3 f7 Qe5 Bg4 Kg7 Be6 Qed5 Bgh4 Bg5 Bhg3 Be7 Bh2 Rb6+ Nb7 Qe5 Bd5 Ba3 Be6 Qb4 Ka8 Bb2 Nc5 Qdd5 Rh8 Q5d3 f8N Qb3 Nh7 Qbd1 Ng5 Qb3 Qb4 Qbd5 Rf8 Rb7 Qc4 Rb6 N1a3 Rb7 Rc1 a1Q Rb1 Qa2 Bg8 Ba1 Rb4 Qab2 Nb1 Qd7 Qd4 Qd6 Ba2 Qd5 Qc4 Rb6 Ra4 Rb7 Ra7 Rb6 Nd6 Rb4 Rb7 Rb3 Nb5
3BRnB1/1r1q1R2/K3N1q1/3N2nN/1bP1r2P/2R2b1q/R2Q2r1/1kR1qR1B b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 b4 Ke4 f4 e5 h4 g5 b6 a5 Kb5 d5 c4 a4 f6 g4 f7 g3 f5 a3 c6 a2 b7 g2 f6 d4 c7 d3 h6 d2 h7 Qd6 Nc3+ Kd4 Nge2+ Kd3 Nf4+ Ke3 Nh5 g1R Nd5+ Kd4 Bg2 Bf5 c8B Kd3 Be6 Nd7 b8R e4 Bf3 Rg5 Rf1 e3 Bh1 e2 Rd8 Be7 f8R e1Q f7 Be4 Bb2 Qh2 Bf6 Rb8+ Ka6 Nh6 b5 Bf3 b6 Rg2 b7 Bb4 Qc1 Rhg8 h8R d1Q Rde8 Qc2 Bd8 R8g4 Rhg8 Re4 Rg3 Qh3 Qb2 Qcd1 Rc1 Qdd2 Rc2 a1Q+ Qa2 Qab1 Qb2 Rc8 b8R Rc7 Rb5 Qdd1 Ra5 Rb7 Ra2 Qdd2 Rh8 Qdd1 f8N Nf7 Rh7 Ng5 Bg8 Qdd2 Ne6 Nf8 Qc1 Qdd1 Rf7 Qdd2 Rcb2 Qdd1 Qf4 Qbc2 Qd6 Kd2 Qd7 Kc1 Qd6 Qcd3 Rc2+ Kb1 Qd7 Rf4 Qd6 Qg6 Qd7 Re4 Qd6 Be2 Rgc3 Bf3 Qf4 Qd4 Qd2 Qdg7 Rf4 Qe7 Rf7 Qd7 Rc1+
2B1Bb1n/4r1B1/1kNq2R1/2NPqr1B/1K1BQ2b/1b2P2n/bB6/N2RRq2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Kd7 d4 a5 Kd2 f5 Kc3 c5 b4 Kc7 d6+ Kb7 e6 h5 d7 a4 e7 f4 e8B c4 b6 f3 e3 h4 b5 h3 d5 a3 g6 h2 g5 f2 g7 a2 g6 Bd6 Qd3 Nh6 g8B Bf8 g7 Rh7 Qe4 Na6 Nd2 Nc7 Ngf3 Nf7 Ng5 Ne6 Bb2 Nh8 Bgf7 Nf4 g8R Nh3 Rd1 a1B Bh5 Re7 Kb4 c3 Rg6 c2 Nb3 c1Q Ne6 Qcc7 Rhg1 h1B Nec5+ Kb8 b7 Ka7 b8N Ba6 Bfe2 f1Q Nc6+ Kb6 Beg4 Bf3 Rh1 Qdb8 d8B Be2 Re1 Bd1 Bc8 Ra7 Bg7 Bf6 Na1 Bh4 Rhg1 Rf7 Bdf6 Qd6 Bb2 Bb3 Rd1 Rae7 Rh1 Qg2 Rhe1 Qf1 Bbd4 Rf5 Bb2 Qf6 Bd4 Qbe5 Bb2 Kc7 b6+ Kd6 b7 Ba2 Bh6 Kc7 Bd4 Kb6 Bg7 B6c4 Bb2 Bcb3 Bd4 Qee6 Bb2 Qd7 b8B Qfe6 Bh2 Qdd6 Bhe5 Qf6 Bec3 Qfe5 Bd4
rk3rnB/R7/3bbB1B/q2q4/NnNq2BK/3QR1p1/1PB3Pn/BR3N2 b - - 0 1 illegal: Other
N2N1q1b/bRB1NB1k/1rb2R2/1qn4B/1BPp1B1Q/P6q/1r4n1/KB1R4 b - - 0 1 legal: proof: e4 c5 h4 a5 b4 f5 exf5 g5 bxa5 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Kc3 Kg7 Kb2 d5 f4 e5 g4 b5 c4 h5 c6 d4 g6 b4 g5 b3 c7 e4 a6 e3 a3 e2 a7 e1B Nf3 h4 Nc3 h3 Bd3 h2 Rf1 h1Q Nd5 Qd6 Ne7 Ba5 Qe1 Rh5 f6+ Kh8 f7 Bg7 f8B Rh4 f5 Qh3 f6 Bb7 c8R Rh5 f7 Rh6 Ne5 Bd5 Bb1 Nf6 Bf4 Qhd7 Qh4 Qc5 N5c6 Qb5 Nd8 Bc6 Rc7 Na6 Rb7 Rb8 a8N Nd5 Bc7 Be5 Rf6 Qf5 g7+ Kh7 Ng6 Qf1 Bfd6 Ne3 f8B Ng2 Ne7+ Qf5 Bb4 Bb6 Bd2 Nc5 Bf4 Ba7 g8B+ Kh8 g6 Qh3 Bf7 Qb4 Kc1 b2+ Kc2 Qb5 g7+ Kh7 Bh5 Qb4 Ba2 Qb5 Rd1 b1Q+ Kd2 Q1b4+ Kc1 Rg6 g8B+ Kh8 Bf7 Kh7 Rd6 Bh8 Rf6 Qbb3 Bb1 Qbf3 Bd2 Qf2 Bb4 Qff3 Kb2 Qf4 Bh6 Qd6 Nf5 Qf8 Bhf4 Rh6 Ne7+ Rg6 Rf5 Re6 Ka1 Re2 Rb6 Rb2 Rb7 Qd3 Rf6 Qf5 Bcd6 Qd3 Rc7 Rb6 Rb7 Qf5 Bc7 Qd3 Ng6 Qh3 Ne7+
qn1bK3/N4R1P/2NRNrRN/1r2Ppr1/2Bq2nN/kb1Q2BN/2B5/1n6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 e4 f6 Kg6 c4 Kf7 f5 b4 c3 h4 g4 d4 g3 b6 c2 h6 g2 b7 a4 h7 a3 d6 Kc6 h5 a2 d5+ Kb6 e6 Ra4 b5 Kc5 b6 Kb4 d7 Bd6 e7 Ra8 e8B Be7 e5 Kb3 h6 Nc6 b8N Nb4 d6 Ra5 b7 Bg5 Qd3+ Ka4 Nd2 Ra6 Nh3 g1R Nc6 Be3 b8N Qh4 d8R Ne7 d7 Ned5 Na7 Qd4 Nbc6 Rg5 Rg1 Nf6 Nf3 Ng4 Nh4 Rb6 Bd2 c1N Be1 Ne2 Bg3 Rb5 Ke7 Rf8 h8N Bf4 h7 Nc3 Nf7 Na6 Nh6 Nb8 Bh5 Rf6 Ke8 Bc1 Bf7 Nb1 Bb3+ Ka3 Bc2+ Nc3 Rb1 a1Q Be2 Bd2 Rbd1 Bb7 Rc8 Be3 Rc7 Bc8 d8N Be6 Rd2 Bb3 Rf7 Nb1 Ne6 Bf2 Bf3 Qa2 Bd5 Be1 Rd1 Ba5 Bc4 Bd8 Qe4 Qf2 Rd6 Qc5 Qd3 Qd4 Bd1 Qg2 Bc2 Qf3 Ne7 Qb7 Nec6 Qa8 Qe2 Nh2 Bf4 Rh5 Rg6 Ng4 Qd3 Rg5 Bg3
n5B1/Nbp3BB/2BN4/1RP1R3/Bqrr1q2/kn1P2Q1/2rbn2K/4RBN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 b4 Qd4 Ra6 Qd7 Rd6 Qd8 Rxd3 Nh6 Rd7 Ng8 Kf2 f5 Kg3 h5 e4 a5 c4 f4+ Kh2 h4 g4 h3 e6 f3 b6 f2 g6 a4 c5 a3 e7 a2 e5 a1N g7 Nf6 g8B Nd5 d3 Rh5 g5 Ra6 b7 Nb6 b5 Nc2 g6 Nd4 g7 Rh4 Na3 Ra4 Nc4 Nb3 Qf3 Nc6 b8N Ncd4 Bh6 Ne2 Qg3 Na8 b6 Rd4 Bh7 Bb7 Nc6 Qb8 g8B Ra2 Rd5 Rc2 Nd6+ Kd7 Na7 Rdc4 Bg2 f1Q Bg7 Qf4 Bf1 Rd4 Nab5 Kc6 e6 Rdc4 Re5 Rd4 Bf6 Bh6 Bg7 Qd8 e8B+ Qd7 Beg6 Qdf7 e7 Qc4 B6f7 Qb4 Bfg6 Qh4 B6f7 Bd2 Be6 Qf4 Bg4 Ba6 b7 Rdc4 b8R Bb7 Nc8 Rd4 Nbd6 Rdc4 Nf5 Kb5 e8B+ Ka5 Na7 Rd4 Bf3 Rdc4 Nb5 Ka4 Na7+ Ka3 Ba4 Rd4 Bfc6 Rcc4 Nf3 Rc2 Rg1 Rcc4 Nd6 Rc2 Kh1 h2 Kg2 Rdc4 Kh3 h1R+ Kg2 Bc8 Rb5 Rh4 Rh1 Bb7 Ng1 Rg4 Kh2 Qe3 Re7 Rgd4 Re5 Qf4 Bfg2 Qf2 Nf3 Na1 Re1 Nb3 Ng1 Qf4 Bf1
2n2Nn1/1Bp2rbR/N3b3/NP1BrQ1K/r1R2q2/1q2PnB1/Nk2N1N1/3R4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 g5 d4 a5 b4 f5 h4 f4 e6 Kd6 Kg4 a4 h6 a3 h5 a2 b6 f3 h7 f2 b5 Qf6 h6 Ra4 b7 Ra6 Rh4 Qg7 Bg2 f1N Qc2 Ra4 Kh5 g4 e7 g3 e8B Ra8 Qf5 Ne3 Nc3 Ra5 Bc6 Nc2 Bf4+ Qe5 e3 Ne1 Nge2 Be6 Rd1 a1R Na2 Nd7 b8N Rb1 Na6 Rc1 Bb7 Ke7 d6+ Kd8 d5 Bg7 Bf3 g2 Bg3 g1Q Rc4 Nb6 d7 Ke7 d8N Kd6 Nc6 Ra4 Na5 Qf4 Bh1 Nf3 Bg2 Kd7 d6 Nc8 Bh1 Qe1 Bd5 Qb4 Bg2 Ke8 d7+ Ke7 d8N Kd6 Bh1 Qb3 Bg2 Bd7 Ne6 Ra1 Nf8 Be6 Rcc1 Re4 Rc4 Re5 Bb7+ Nd2 Bgd5 Nf3 Nac1 Ra4 Na2 Qc2 Ng6 Qb3 Nh4 Nge7 Ng2 Rf8 h8N Ng8 h7 Rf7 Nb8 Nce7 Ng6 Nc8 Re4 Kc5 h8R Rc4 Nf8 Rd4 Nac3 Kb4 Na2+ Ka3 Rh7 Ra4 Rc4 Kb2 Na6
1R1R1R2/1R4Pk/1N1nb3/1Bqp2B1/Kn1r1B1P/1nb1RR2/2Q3NN/2rr3r b - - 0 1 illegal: No proof kernel
1qrBnBq1/N1bR4/1rN5/3QR1NN/p1P1R1K1/n4N1P/n3k1B1/3nNb2 b - - 0 1 illegal: No possible last move, all moves rejected
2n2q2/4q1pk/1N2NN2/KRRB2B1/1nRRb1P1/2Bq2Q1/R2P1b2/qRr2q2 b - - 0 1 illegal: No proof kernel
1R1qNr1k/qNRn1N2/5bpq/2B3P1/1NBn1N1q/2N5/2PR3r/nQ3KB1 b - - 0 1 illegal: No extended proof kernel
Q1b3q1/NqB5/B1RbR1q1/1B1q4/1N2RpPR/K3bP2/4rnNr/2RR2k1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 d4 Bh6 e4 Ba6 e5 Bc8 d6 Kf8 d5 Kg7 e6 Nd7 exd7 Kg6 Ne2 Bg7 Ng1 Bf8 Kd2 Kf5 Kc3 Ke4 Kb3 f5 g4 c5 g6 e5 b6 h5 g7 a5 b7 a4+ Ka3 c4 b8R c3 b4 c2 b5 h4 b6 h3 b7 h2 Qf3+ Kd4 Bf4 e4 Ba6 e3 Nc3 e2 Na2 e1B Rc1 Nf6 g8B Qe7 d8R Qe4 Re8 Rh5 Nb4 Bd2 d7 Bd6 d8N Be3 Re6 Qe5 Bf7 Ne4 Be8 Qf6 Beb5 Qg6 Qg2 Ra7 Ra8 Qg8 b8R Re7 Rb6 Rh6 Ka2 a3 Rc6 Rh8 Kb3 a2 Ka3 Re8 Ra7 Rh3 Rae7 a1Q+ Kb3 Qb1+ Ka3 Bb8 Bc7 f4 d6 Rh4 d7 Rh6 Ba5 Bd6 Bc7 Rh5 Nh3 Rh8 Ng5 Rh5 Rhe1 h1Q Rh7 Rh2 Rh4 Qg6 Ngf7 Qg8 Ne5 Re7 Re2 Qd1 f3 Nf2 Nd3 Qg6 Ne1 Re8 Nb7 Qg8 d8R Qd3+ Ka4 Qdg6 Na5 Qb2 Ra1 Qb1 Ka3 c1Q+ Ka4 Qd1+ Rcc2 Nh1 Nbd3 Qd2 Bd7 Qb2 Re7 Bf2 Nc6+ Kd5 Rac1 Bd4 Bb7 Ba3 Qf2 Bh8 Qa7 Bd4 Ba6 Qb7 Qa8 Bdc5 Na7 Kd4 Ra1 Bc1 Nb4 Qdd3 R2e5 Qde4 Bc6+ Ke3 Rd1 Bd6 Bcb5 Bd2 Rc4 Kf2 Ka3 Qed5 Rac1 Kg1 Rc6 Nf2 Re2 Rf8 R7e5 Rf5 Re6 Re5 Re3 Re4 Rd3 Re2 Rd4 Be3 Rdc4 Bb6 Rce4 Be3 Ng2+
1KbBR2b/1b1N1B2/1BB3p1/Rn1rB3/5r2/1qp1P2n/2Nr1PQk/NR2B3 b - - 0 1 illegal: No proof kernel
3N1n1k/3BRpnN/R3N3/1brRRq1Q/4r1P1/p2rR2R/K1bb1P2/1BB5 b - - 0 1 legal: proof: d4 b5 h4 c5 a4 e5 axb5 g5 hxg5 c4 dxe5 c3 bxc3 Ne7 c4 Ng8 c5 Be7 Nf3 Bd6 Ng1 Bf8 Kd2 a5 Kc3 d5 Kb3 h5 e4 h4 c4 d4 b6 h3 e6 d3 e7 a4+ Ka2 d2 e5 h2 g6 Be6 c6 Na6 c7 Bh6 c8B Bf5 c5 Be4 g7 Be3 b7 Bf3 b8N Ra7 c6 Nf6 c7 Bg5 Na3 Bh5 Bd3 Rg8 Nh3 Bg6 Qh5 d1B g4 Nd7 Nc2 Bh7 Nc6 Be2 N2d4 Bd2 Ne6 Nac5 Bb1 Bc2 Nhg5 Nf8 Nh7 Qd7 Ncd8 Ra5 Rd1 Rh8 g8R h1R Rg5 Bb5 Re1 Rg8 Re3 Rd1 Rf5 Qd3 Rff3 Qe4 Rh3 Qf4 Bb7 Re1 c8R Qf5 Ra8 a3 Ra6 Rg5 Bd5 Ra4 Bb3 Rd4 Ba4 Kd7 e8R Rd3 Nb7 Re2 Rd8+ Ke7 Rd5 Ke8 Nbd8 Ke7 Nf4 Ke8 e6 Re1 e7 Nce6 Rde5 Ng7 Nfe6 Re2 Reg3 Re4 Re3 Rg6 Nc5 Rc6 Nce6 Kd7 e8R Rcc3 Nb7 Rc5 Rd8+ Ke7 Rdd5 Bd7 Bc6 Ke8 Nbd8 Ke7 Bb7 Bb5 Bc8 Ke8 Bd7+ Ke7 Nhg5 Kf6 Re2 Qh7 Bb2 Rf3 Rf5+ Ke7 Nf4 Rd3 Re1 Qg6 Nh7 Re5 Re4 Nge6 Rhe3 Bca4 Bc2 Qg5 Rc1 Qf6 Bb1 Bc2 Rh3 Qg6 Rce1 Qg5 Ng2 Qf6 Rff3 Qf5 R4e2 Ree3 Nf4 Re5 Bc1 Ree3 Ng5 Kf6 Nh7+ Kg7 Rfg3 Kh8 Rf3 Ng7 Rfg3 Rf3 Re7 Rd4 Nfe6 Rfd3 Ree5 Re4 Re3
3b3n/2NBPB1b/1RrR3R/2pNR2Q/1P1BqNn1/p5R1/K3nr1k/1R3r2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 b4 g5 d4 a5 Kd2 f5 Kc2 c5 Kb3 a4+ Ka2 a3 e4 f4 b6 g4 e6 Kf6 h6 g3 h5 Kg5 e7 g2 e8B Qc7 h7 Be6 b7 Qc6 e5 Bf7 e6 Kf5 d6 f3 d5 Kg4 e7 Kg3 d7 f2 d8N Qd6 h6 Ra4 Nh3 g1R Bfb5 f1N Qh5 Nc6 b8R Qf6 Be3 Be6 Nc3 Qh4 Rb6 Ra6 Bd4 Bf5 d6 Bg7 d7 Nh2 Nd5 Be5 Re1 Rf1 Ne6 Bc7 d8R Ng4 Rd6 Bd8 Nec7 Be4 Rg1+ Kh2 Bf7 Bd3 Re5 Bg6 Bc3 Nd4 Bd7 Ne2 Bd4 Qe1 Rg3 Rf2 Rb5 Rc6 Rb6 Qh1 Rd3 Qe4 Rd1 N8f6 Rb1 Rf8 h8R Nh7 Rg8 Ng5 h7 Bf5 h8R Bh7 Rgg6 Rf1 Rh6 Rf2 Rg8 Rf1 Bfe6 Nf7 Rgg6 Nh8 Bf7 Nf2 Rg3 Ng4 Bg6 R8f6 Bf7 R6f2 Nhf4+
rN1Q2N1/1nqn2K1/qr6/1BB2N2/2bP3R/N1k1Rbpp/1N1N2RP/2B4r b - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 cxd5 Be7 g3 Bg5 fxe5 f4 Qb3 f3 Qd1 Bf4 gxf4 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Kd7 Ke3 c5 Ke4 a5 Kf5 g5 e4 h5 Kg6 g4 b4 a4 e6+ Kd6 e7 f2 e8N+ Kd7 b6 g3 b7 a3 b5 c4 d6 Ke6 b6 h4 e5 Kd5 f5 Kd4 f6 a2 f7 c3 f8B c2 e6 h3 e7 Qd7 Na3 Qa4 d7 Na6 d8R+ Qd7 b8N Nf6 b7 Nh5 Nf3+ Ke4 Bb5 f1B Nc6 Rb8 Nb4 Ra8 b8N Nf4+ Kg7 Rh6 Rg1 Rb6 Nd3 Nc5 Nb2 Nfd3 Rg2 Ne5 Nd6+ Kd5 d3 Nb7 Nd2 Kd4 Nf5+ Kc3 Rb1 Qe6 e8N a1R Rd4 Nd7 Bc5 Be2 Nf6 Bf3 Rh4 Qc4 Nf1 Qa4 Ng8 Qa6 B1e3 c1Q Bf4 Qc2 Bc1 Ne5 Nd2 Be6 d4 Bed5 Qe2 Nd7 Qe7 Bc4 Qd8 Qe4 Nd3 Qc6 Rb4 Rb1 Nb2 Qc7 Ba4 Rh6 Rb6 Re6 Bb5 Re1 Re6 Rh1 Nd3 Rb3 Nb2 Rb4 Ba4 Rb6 Bb5 Qf4 Re7 Qc7 Re3+
7R/qRRNn1B1/Pr2p3/3nQPk1/R2n1pb1/K4Rbr/NB1R4/5qNB b - - 0 1 illegal: No proof kernel
1n3N1q/BNK2p1Q/1R1Rp2k/nr2N3/4B1rq/r3NPNq/RN1bPB2/8 b - - 1 2 legal: proof: c4 a5 g4 d5 cxd5 h5 gxh5 b5 a4 Be6 axb5 a4 b3 a3 b6 Bg4 Bh3 Bd7 Bf1 Ba4 bxa4 Ra5 Bb2 Ra6 Bc1 Ra8 d4 g5 Kd2 c5 Kc3 a2 Kc4 g4 Kb5 c4 h4 e6 b7 c3 h6 g3 a5 c2 d6 g2 h7 Ra7 h5 Na6 Kc6 Bh6 b8B Kf8 d5 Kg7 d7 Qe7 d8R Bg5 d6 Rd7 h6+ Kg6 Na3 Nf6 Be3 c1R+ Nc4 Bf4 Nf3 g1Q Ne5+ Kg5 Qd3 Rg8 h8N Rf8 h7 Nh5 Bba7 Re8 Bg2 Ng7 Be4 Qe1 f3 Qf8 Nhg6 Nh5 h8N Rb7 d7 Qh4 Bf2 Nf6 Ne7 Nh7 Nhg6 Rb5 Nf5 Rcb1 Ng3 Qh8 Ne3 Rg8 Nf8 Nb8+ Kc7 Nf6 a6 R1b3 Rhb1 Kh6 Rb2 Qh3 Rab1 a1Q Ra2 Ra3 Qc2 Rba5 Rb6 Rb5 Qb1 Nc6 Qh1 Kg5 Qh2 Na5 Qh1 Qf5 Qh7 Qe1 Nd5 Qh1 Bb8 Rb4 a7 Bc1 Ne3 Qh2 a8N Rb2 Rb4 Qh4 Nb6 Bd2 Nbc4 Qfh3 Rb6 Rb5 Nb2 Rg6 Ba7 Rg8 Re8 Rg6 d8N Nd7 Nb7 Nb8 Rd8 Rg8 Qf5+ Kh6 Rdd6 Rg4 Qh7+
5r2/b1NKp3/Np1PP3/1B2qp2/2R2NRB/1QR1B1nN/1kn2r2/1rNb2N1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 Kb4 e4 f5 h4 c5 d4 c4 a4 c3 a6 c2 g6 Kb3 d6 b6 h6 Bd7 g7 Qc7 d5 Nf6 g8R Qb7 a7 Be8 Ke6 Bc6 a5 Na6 e5 Qb8 h7 Ng4 h5 Qe8 d7 Qc8 h6 Nb4 a6 Na2 Nd2+ Kc3 Rh3+ Ne3 Bb5 Qd8 Nb3 Bb7 Rg4 Rb8 a8N Rg8 h8N Qc7 d8N Rc8 h7 Bg7 a7 Ba6 Ng6 Bh6 h8B Rb8 Bf6 Nb4 Ra4 Qc5 Nc7 Nd3 a8N Ne1 Nf7 Rbf8 Kd7 Bf4 e6+ Be5 Bd2+ Kb2 Bh4 c1R Ng5 Nf1 Rac4 Nc2 Nf4 Ng3 Be3 Rb1 Nc1 Bb7 Na6 Bb8 d6 Bf3 N8c7 Qe5 Nfd5 Ba7 Nf4 Nb4 Qa4 Nc2 Rh1 Bd1 N5h3 Ra8 Rh2 Rgf8 Rd2 Rac8 Rd3 Ra8 Rdc3 Rac8 Ncd5 Rc5 Ndc7 Rd5 Ne8 Rd2 Nec7 Rf2 Qb3+
1B2R3/1bB5/B1N3Rq/5K1p/Pp1k4/pn1NR3/rbR1RPn1/1r2qNRQ b - - 0 1 illegal: No proof kernel
2rN1N1r/BR6/8/3p1NNq/K1NBP1qR/1pRP2b1/B2n2p1/kN1bq1Q1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Nc6 bxa5 b4 c3 Na7 c4 Nb5 cxb5 Bc5 Qb3 Be7 Qd1 Bf8 h4 Ke7 a4 Ke6 e4 g5 a6 f5 a5 d5 a7 c5 h6 c4 h7 c3 a6 f4 h5 f3 b6 c2 b7 g4 b8R g3 h6 g2 Nh3 Nf6 Bc4 Rg8 h8B Qe7 d3 f2+ Kd2 f1Q h7 Nd7 Rb7 Qf5 Ba2 b3 Kc3 Qfg5 Be3 Nf6 Qg1 Rb8 a8N Qgg7 a7 Qd8 Nb6 Nd7 a8N Qg4 Nc4 Qdh4 Nab6 Bh6 Kb4 c1Q Ka4 Qce1 Bg7 Rf8 h8N Qhh5 Nf7 Rh8 Bf2 Bf4 Nhg5+ Ke7 e6 Bg3 Nd8 Ra8+ Na5 Kd6 e7 Ne5 Nd7 Nf3 Rh4 Nd2 Nf8 Bf5 Bgd4 Rc8 Ba7 Ke5 e8N Be6 Nd6 Bf7 Nf5 Bg6 Ne3 Bf7 Bb8+ Kd4 Nac4 Bg6 Nba3 Kc3 Nf5 Bf7 Bba7 Be6 Rd1 Bf7 Nb1+ Kc2 Nca3+ Kb2 Rc1 Ka1 Rc3 Be6 Bfd4 Qf3 Nd6 Bg4 Nac4 Qf4 Nba3 Bd1 Nf5 Qfg4 Nb1
2N1Bn2/p3r1B1/3Rr2k/N3qP2/2K1RR2/P3Bbn1/BN2rppB/3B2rQ b - - 0 1 illegal: No proof kernel
2k1nNR1/K1R4p/4q2R/b1R1BpPB/p3pRQ1/BN2P3/r1nR1r1N/2b5 b - - 0 1 illegal: No possible last move, all moves rejected
br1k2BB/rB4bp/Bpq1B2B/2bR3n/b2NrN1R/3Q2n1/1P1R3P/K6N b - - 0 1 illegal: No proof kernel
KRQ5/1Nk5/BNpq2pb/4B1P1/Nnbqp3/nR6/1nr1P1rN/R1B2N1N b - - 0 1 illegal: No proof kernel
B5k1/3b2nQ/Kpp3RR/N2q1rN1/3N1qN1/r2N2p1/qP1N2P1/n1b1BB1R b - - 0 1 illegal: No possible last move
5B2/BnP1R3/N1Bnb1KB/1n2P1n1/Bbq4p/rBR3QN/3B4/1k1r3Q b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 c5 h4 e5 fxe5 g5 hxg5 b4 d4 b3 dxc5 Qf6 axb3 Qg7 b4 Qf6 b5 Qd8 Kd2 Kd7 Kd3 a5 Ke4 h5 Kf5 a4 e4 a3 b4 f6 g4 a2 c6+ Kc7+ e6 Kb6 g6 h4 g5 Ra5 g7 Qe7 e5 Ra6 g6 Ra4 d6 Qf7 d7 Ba6 d8B+ Qc7 e7 Nd7 e8B Ra5 Bd2 Bb7 Rh3 Bd6 Rc3 Bc8 Nh3 Bc5 Bg2 Ra3 Qh1 Bd6 Bh6 Nc5+ Bd7 Nb7 Nd2 Bc5 Nb3 Bf8 Rb1 a1N Nc5 Nb3 Na6 Bc5 Be7 Rh7 Bf8 Ne7+ Kg4 f5+ Kh5 f4 g8Q f3 g7 Nf5 Kg6 f2 Rd1 Qd8 c7 f1N Bgc6 Nfd2 Rf1 Nfd6 Rf7 Nf3 Re7 Nbd4 Qb3 Ra4 g8B Ng5 Qa3 Ra5 Bb3 Rf7 Be8 Be6 Bed7 Rf1 Be8 Rd1 Bed7 Ka7 b6+ Ka8 b5 Bb4 Qc1 Ra3 Qf4 Ndf7 Be8 Qd5 Qg3 Nd6 Bcd7 Nd8 b7+ Ka7 b8B+ Kb6 Ba7+ Ka5 b6 N4b5 b7 Qc4 b8B N8b7 Bd4 Qe2 Bba7 Qc4 Ba2 Ka4 Bc6 Rb3 Bdb6 Ka3 Be3 Kb2 Bd2 Ra3 Bb3 Kb1 Bed7 Nd4 Bca4 N4b5 Bc6
1B1qB3/8/n1BRq2B/q2N4/rPK1Qp2/kP1Br1b1/b4B1r/N3QB1R b - - 0 1 legal: proof: d4 c5 g4 e5 c4 d5 cxd5 b5 f4 h5 fxe5 c4 gxh5 b4 a3 Nd7 axb4 Nc5 dxc5 Rh6 Nh3 Rh7 Ng1 Rh8 Kd2 Kd7 Kc3 f5 e4 a5 h4 g5 b3 a4 e6+ Ke7 h6 g4 c6 Kd6 c7 g3 h7 g2 h5 a3 e7 a2 e8B Ra3 h6 Ra8 e5+ Ke7 e6 Kd6 e7 Ra5 Na3 Nf6 Nc2 Ra4 Nh3 g1R Bc6 Nd7 e8B Nb8 Nf4 Na6 Qe1 Rg3+ Be3 Rh3 Rd1 Ke5 Na1 Bd6 Bd3 Bb7 Bf2+ Re3 c8B Bb8 d6 Ba8 B6d7 Be4 Bc6 Bc7 d7 Bb8 Kc2 Kd4 Nd5 Bg3 B8b7 f4 Kb2 Qa5 d8B c3+ Kc2 Bg6 Bg5 Qd8 Bc8 Be4 Bh3 Bf5 Bf1 Bg6 Kc1 c2 Kb2 Ke5 Kc3 c1Q+ Nc2 a1Q+ Kc4 Qa2 Rd2 Qd1 Na1 Qg4 Rd1 Qe6 Rd2 Rf8 h8Q+ Rf6 Bde2 Bb1 h7 Qa3 Rd1 Ba2 Bh6 Ke4 Qf8 Rf7 h8B Rh7 Bd4 Rh8 Ba7 Ke5 Bg5 Rh2 Qe7 Ke4 Bh6 Ke5 Kb5 Ke4 Bd3+ Ke5 Nb6 Kd4 Rd2 Kc3 Bb8 Qh3 Rd1+ Kb2 Nd5 Qe6 Kc4 Ra5 Bdg6 Qa4 Rd4 Ka3 Bgd3 Qb5+ Kc3 Qbb6 Kc4 Ra4 Qh7 Qa5 Qe4 Qed6 Nc3 Q6d7 Rd6 Qe6+ Nd5
1BB1q1k1/3bB3/1R1n4/N1rP2RP/pBQrBpr1/K4B1Q/4b2N/4Bq2 b - - 0 1 legal: proof: c4 e5 a4 h5 f4 g5 fxe5 d5 cxd5 b5 axb5 h4 g3 g4 Ra6 Be7 Ra5 h3 Ra1 Bh4 gxh4 g3 Ra3 g2 Ra1 Nd7 Ra2 Nc5 Ra6 Ne4 Ra1 Ng3 hxg3 Ke7 Qa4 Kd7 Qd1 Ke8 b4 Kf8 e4 c5 d4 a5 Kd2 f5 Kc3 h2 Kb2 f4 h5 a4 g4 c4 d6 c3+ Ka3 c2 b6 Qd7 b5 Ra5 g5 Ra7 b7 Qh3+ Nf3 g1Q b8B Ra6 g6 Rb6 e6 Kg7 d7 Qhg4 d8B Qf2 e7 Qf5 e8B Qe1 e5 Qe6 Bg2 Rh6 Be7 Qf6 e6 Qf8 Rg1 h1B Bc6 Rh7 Bbd6 Nf6 Be4 Bb7 Bb4 Bc6 Nbd2 Qg3 Nc4 Qg8 Rb1 Rb8 b6 Ra8 b7 Rf8 b8B Nd5 Qf1 Qh3 Na5 Nf6 Bcd2 c1R Be1 Rc5 d5 Rc8 Qc4 Ne8 Rb3 Kh8 Nh2 Bd7 Bgf3 Nd6 Rg5 Qe8 g7+ Kg8 Rb2 Rh6 Rb1 Rg6 Rb3 Kh7 g8B+ Kh8 Rb1 Qf1 Bh7 Rg7 Bhf5 Bg2 Bf6 Kg8 e7 Bh3 Rb3 Bg4 Rb2 Qf7 e8Q+ Qf8 Qe5 Qe8 Be7 R8c6 Qec3 Rg6 Bh1 Be2 Qh3 Rc8 Bhf3 R8c7 Qb3 Rc4 Qc2 Rd4 Qc4 Rc5 Rb1 Bb5 Bc8 Bd7 Bbc3 Rg7 Rb6 Rg6 Bb4 Rg7 Re5 Rg4 Rg5+
q1B1B3/B4N1R/1n1Q1B1K/r2nPRP1/2n3k1/3n1pB1/2bQ3p/1rB2N1B b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Be3 Ra2 Bb6 Ra1 Ba5 bxa5 Kd7 Ra2 Ke7 Ra1 Ke8 Kf2 Kd7 Kg3 c5 Kh4 f5 Kh5 a3 g4 f4 e4 h6 d4 c4 a6 a2 g6 c3 d6 Ke6 d7 c2 g7 Ra7 d5+ Kf7 e6+ Kf6 g5+ Ke5 d6 Rb7 a7 Qf6 a8B Qf8 d8B Na6 d7 Rh7 b6 Nc5 e7 Rb8 e8B Bb7 Qd2 Ne7 g8Q Nd5 Ba6 Na4 Qg6 Rf7 Rh2 Rf5 Bf6+ Ke6 d8B Bc6 b7 Nab6 Bd3 Ba4 Nf3 Bb3 Ne5 f3 Bf1 Qa3 Nf7 Qa6 Bg2 Ba4 Ba3 c1N Bc7 Nd3 Bh1 Bc2 Bc1 Qa3 Bg3 Qa5 Nc3 Qa6 Rb1 a1N Nd1 Nb3 Ne3 Na5 Rb5 Nac4 Nf1 Qa7 Qg8 Qa5 Qf8 Qa1 Kg6 h5 Kh6 h4 Qc5 h3 Qd4 Rd8 b8B Qa3 Bac6 Qa8 Ba7 Rb8 Bb7 Re5 Re2 h2 Bc8+ Nd7 Rc5 Rb1 Re3 N5b4 Rc7 Ra5 e5 Kf5 Qd6 Kg4 Re4+ Kh3 Rf4 Nd5 Rf5 N7b6 Nh8 Kg4 Rh7 Qb7 Nf7 Qb8 Qc5 Qa8 Qd6
1qq4r/8/Nq1RRRP1/1Q1R2RR/1B1QpbN1/5P1b/p4Kb1/1k1BR1r1 b - - 0 1 legal: proof: g4 d5 f4 b5 a4 f5 gxf5 g5 axb5 Nf6 c4 Nc6 cxd5 Nd4 h4 Nf3+ exf3 g4 Ra5 Ne4 Ra1 Ng5 hxg5 Bg7 Rh3 Bh6 Rh1 Bf8 b4 Kd7 d4 Kd6 g6 c5 f6 a5 b6 h5 f5 e5 b7 a4 b8Q+ Qc7 b5 e4 f7 c4 b6 c3 b7 c2 f6 h4 Kf2 a3 Nc3 a2 Na4 h3 Nc5 h2 Ba3 c1Q Na6+ Qc5 Nh3 Bg7 f8R Ra7 f7 Be5 Bb4 Be6 Re8 Bc8 f8R Ra8 Be2 Bf5 Re6+ Kd7 d6 Kc6 d7+ Kd5 Rff6 Bf4 d8R+ Q7d6 Qd2 Qc8 Bd1 Kc4 d5 Qdc7 Rg1 h1B d6 Bg2 d7 Ra7 Qb2 Kd3 Rc1 Qe5 Re1 Ra8 Rc5 Qd6 Qa7 Qdb8 Rce5 Rh4 Rh8 Rh7 d8R+ Rd7 Rh5 g3+ Kg1 Bg4 Reg5 Rd6 Qe5 Rd4 Rdd6 Rd5 Be2+ Kc2 Bd1+ Kb1 Nf2 B4h3 Qad4 Rc5 Qed5 Rc1 Qf5 Bf1 Qb5 g2 Ba4 Rd1 Ng4 Rc1 Kf2 Rd1 Re2 Rc1 Bd1 g1Q+ Ke1 Qe3 Rdd5 Qb3 Kf2 Bfg2 Re1 Qb2+ Qd2 Qd4+ Qe3 Qb6 Qd4 Qe5 b8R Qed6 Rb7 Qdb8 Bb3 Rd1 Rbd7 Rc1 R7d6 Rd1 Re2 Rg1 Re3 Ra7 Bd1 Rh7 Re2 Rh8 Re1
1B4BB/1Pqr2r1/br2BQn1/k3BBK1/3NNRb1/2r5/1bPrQ2n/4BR2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 e5 Ke3 h5 g4 d5 b4 Kd7 f4 Kc7 g6 a5 c6 Kb6 f6 a4 g5 e4 f7 h4 c7 a3 g7 a2 g6 h3 f5 d4+ Kf4 d3 f6 e3 Qe2 d2 Nf3 d1R Nd4 h2 Nc3 Ra5 Bh3 Bf5 c8B Be6 Bf5 Rh3 Bb2 Nc6 Kg5 Qc7 Ne4 Nh6 g8B Ra6 g7 Ne5 Rf1 h1B Rf4 Rd2 Raf1 a1R Bd7 Bd6 f8B Nhg4 f7 Rad1 Bc3 Bc4 Bde6 Ng6 Ba1 Be5 Bd6 Bd3 f8B Nh2 Bc3 Bg2 Bfe7 Bf3 Bf6 Kb7 b6 Bg4 b5 Ra7 Qf3 e2 Bcb4 e1R Qe2 Rb1 Ba5 Red1 Bc3 Kb8 b7 Rg3 Bcb4 Ra3 Bc3 Ka7 b6+ Ka6 b8B Rb5 b7 Rb6 Bdb4 Bb5 Ba1 Rac3 Ba5 Bd6 Be5 Ba3 Bgf7 Rg1 g8Q Bb2 Qd8 Rgg3 Bb4 Bc4 Qf6 Rg2 Bf8 Ka5 Bg8 Ba6 Bg7 Rgg3 Bh8 Rg2 Nf3 Rd7 Nd4 Rg7 Nb5 Rdd7 Nd4 Ba3 Bb2 Rf2 Bc1 Bb2 Bd2 Rg2 Be1 Rf2 Qd3 Rd2 Qe2
6R1/qk1nN2b/1rr5/1B2N3/Rr3N1Q/B1nPKQNN/Nb2Pr2/q4Nn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 h4 f5 b4 a5 d3 g5 e6+ Kd6 h6 c5 h7 Kc7 d6+ Kb6 h5 c4 d7 g4 h6 f4 e7 a4 e8N a3 Bg2 c3 Ng7 f3 Nh3 a2 Rg1 c2 Nh5 g3+ Ke3 f2 Ba3 f1Q Bc6 c1N Nd2 g2 Ng3 Qff6 Ndf1 Qc7 d8N Ne7 Nf7 Ra4 Ne5 Bg7 Qc2 Rg8 h8N Bf5 h7 Nd7 Nhg6 Qa7 h8Q Rc8 Ngf4 Nb3 Qh4 Nd2 Qb3 Ra6 Qd5 Bh7 Qf3 Kc7+ b6+ Kb8 b5 Nd5+ Kf2 Nc3 Ke3 Bh8 Nd5 Ra4 Ndf4 Rd4 b7 Qg7 Rb1 a1R Rb4 Rb1 Ra4 Kc7 b8N Qf6 Qfg4 Nf3 Na6+ Kb6 Nb4 Kc7 Na2 Rdb4+ b6+ Kb8 Bb7 Rc6 Ba6 Bg7 Rh1 g1R Bb5 Rg2 Rg1 Rf2 Rg2 Ng1 Qf3 Qa8 b7 Qa7+ Kd2 Kc7 b8N Kb6 Ke3 R1b2 Na6 R2b3 Nc7 Kb7+ Kd2 Rb1 Ncd5 Bh8 Ne7 Bg7 Bc4 Rb6 Ke3 R1b4 Bb5 Ne4 Ng4 Qa1 Ngf5 Bc3 Ne5 Bb2 Rg8 Nc3 N5g3
1K1Nr1k1/1N2R1B1/3r1B2/Q1bq1q2/q4B1B/BP2Rbq1/4PB1n/r2Bn2Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 f5 Ke3 Kf7 Kd4 a5 h4 g5 h6 a4 b6 f4 e6+ Kf6 h7 Kg7 Ke5 c5 d4 a3 h5 c4 d6 g4 b3 c3 b7 a2 d7 f3 e7 g3 Kd6 g2 h6+ Kf7 d5 f2 Rh3 c2 Nf3 g1Q Na3 Qa5 d8B Qa6+ Kc7 Ra7 d6 Nd7 Nd4 Qg4 Nc6 Qg2 Re3 Qd5 Bh3 f1Q Nb5 Qa3 Bf5 Qf4 Qh1 Ne5 d7 Qa5+ Kb8 Qd1 Ba3 c1Q Bb6 Qd3 d8B Qdd1 Bc2 Qd5 Bd1 Qg3 Bbc5 Qa4 Nd6+ Kf6 Bd4 Qcc5 e8Q+ Be7 Rc1 a1R Qeh5 Bg4 Rc2 Ke6 Rcc3 Bf8 Bh4 Nf6 Nd8+ Ke7 Re4 Ra6 Bf2 Bf3 Rce3 Rg8 h8B Rc6 N6f7 Rd6 h7 Ke8 Qg5 Ng4 Bf6 Nh2 h8B Be7 Qh5 Nd3 Bhg7 Ne1 Re6 Qc2 Qe5 Qf5 Qc3 Kd7 Qa5 Re8 R6e4 Ra6+ Re5 Bc5 Nd6 Rb6 Ka8 Rc6 b8B Rb6+ N6b7 Rd6 Bb2 Ree6 Bc7 Ke8 Ba3 Re7 Kb8 Ree6 Nc6 Kf7 Ncd8+ Kg8 R5e4 Re8 Re7 Rb6 Bce5 Rd6 Bf4
B1B2B2/Bb1q3B/B1NrnR1P/1n5n/QbK2Q2/B1R3r1/2nP1r2/1q4Nk b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a4 Ke7 e4 f5 Ke2 g5 Kd3 b5 h4 c5 h6 g4 h5 g3 h7 g2 a6 b4 h6 b3 e6 Kd6 a7 Ke5 d6 Kf4 e7 Kg3 e8Q f4 e5 b2 e6 f3 e7 f2 a5 Bg7 a6 Nd7 Qf7 Bc3 e8B Bb7 Ra3 Rc8 a8B Ngf6 a7 Rc6 Kc4 Nh5 Qa4 Nf8 Bd7 Ne6 Bc8 Rf8 h8B Qd7 Bg7 Rb6 Bd3 Bb4 Rc3 f1N Na3 b1N Nc2 Ra6 Bh7+ Ne3+ Kd3 Rc6 Nd4 Nc2 Ba3 Ra6 Qf1 Rf2 Bf8 Rb6 Rh4 Rc6 Re4 Kh2 Rf4 Kh1 Rf6 Ra6 Nc6 c4+ Ke4 Rb6 Kd5 Ra6 Rd3 c3 Kc4 Ne1 Rdf3 c2 Rg3 c1Q+ Rc3 Re2 Qf4 Nc2 Re3 Rf2 Rc3 Qf7 d7 Qe1 d8B Qd7 Ne2 g1R Bb6 Rg3 Ng1 Qd1 Rb3 Nc3 Bbc5 Nb5 Rc3 Rb6 Bd4 Ba6 Bab7 Qb1 a8B Rff3 Ne5 Rd6 Nc6 Rf2 Ba7 Qe8 Bd7 Qf7 Bbc8 Bb7 Be8 Qe7 Beg6 Qf7 Bd3 Qd7 Bf1 Nbc7 Bfd3 Qf1 Kb3 Qc1 Ba6 Nb5 Kc4 Qd1 Ne2 Qb1 Ng1
QQbr1q2/1N4k1/KBP2Brq/4B3/2RPBBb1/5B2/1q2nq1b/3NR1Bn b - - 0 1 illegal: No possible last move, all moves rejected
Rr4nn/1b3rr1/3P3N/1Pk1BR2/1p2nR2/1Rq1bR2/Q2N2B1/R2bR1QK b - - 0 1 illegal: No proof kernel
1Q1q1BrN/4nq2/nBB1P1BK/1k3B2/bb1Rr3/4B1p1/P1R2b2/q1Q1B2N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kf3 c5 Kg4 g5 d4 b5 e4 f6 h4 c4 e6+ Kc7 e5 b4 d6+ Kc6 h6 f5+ Kh5 f4 a6 g4 d7 g3 a7 b3 d5+ Kb6 d6 b2 e7 c3 e8B c2 h7 f3 e6 f2 Na3 b1Q Bh3 f1Q Bf5 Nh6 Beg6 Kc5 Nh3 Qf2 Nb5 Kb4 Be3 c1B Rh2 Qa5 d8B Ba3 d7 Bb2 Bdb6 Be5 d8Q Qf4 Qc1 Qf1 Nd6 Nd7 Nf2 Qa3 Nh1 Qab2 Nf7 Ng8 Rc2 Ne7 Qe8 Rg8 h8B Bf6 Bg7 Nb8 Kh6 Na6 h5 Bd4 Nh8 Bd7 Qd8 Rc8 a8B Rc4 Qb8 Ba4 Bf3 Qc3 Bc6 Qbb3 Rb1 Qa1 Rbb2 Qd3 Rd2 Bc5 Rbc2 Qd8 Rd4 Qbc3 Kg5 Qd3 h6 Qf1 h7 Qf2 Rg4 Re4 Kh6 Nd5 Rh4 Bfd6 Bf8 Ne7 Nf7 Qf3 h8B Qf1 Bc3+ Kc4 Bg1 Bf2 Nh8 Bb4 Rf4 Be1 Bge3 Bf2 Bd5+ Kb5 Be1 Qd3 Ba8 Q3d7 Bd5 Q7e8 Rh4 Qf7 Ba8 Re5 Rd4 Re4 Bc6+
2N5/4Q3/R2qp1Rn/N2B1b1r/Q2RPPRB/5Rb1/2bk4/KnR1rRqr b - - 0 1 legal: proof: g4 b5 h4 g5 hxg5 d5 a4 f5 axb5 d4 gxf5 d3 cxd3 Kd7 d4 Ke8 d5 Qd7 Bg2 Qd6 Bf1 Qd8 d4 Kf7 Kd2 h5 Kc3 c5 e4 a5 b4 c4 Kb2 e6 f6 Kg6 b6 a4 f7 h4 b5 h3 b7 h2 b6 Ra7 d6 Na6 b8R Rb7 d7 Bc5 f8R Nb4 d5 Rh3 d6 Qc7 d8Q Ne7 d7 Qf4 Ra8 Nf5 Ne2 Rh5 Nd4 Bd6 Na3 Na2 Qe7 Nh6 d8R Bd7 Ra6 Nc3 Nab5 Nb1 Na7 a3+ Ka2 c3 Bc4 c2 Nc8 Bb5 Nc6 Ba4 Rf1 h1B Na5 Bf3 Bd5 Bg4 f3 Rb8 b7 Bf5 Bb2 c1Q Bf6 Ra8 b8R Bc2 Rb3 Rh1 Rg8+ Kh5 g6 Bc7 g7 Qd6 Qe1 Qe3 Bg5 Qg1 Qd1 Rb8 Bh4 Rb5 Rgf8 Bb8 g8R Bc7 Rg2 Rc5 Rf6 Bb8 Bg3 Kg5 Bh4+ Kf4 Rfg6 Bc7 Rd3 Bb8 Rd4 Ke3 R2g4 Bc7 Rf8 Rb5 Ra4 Bb8 Qd4+ Ke2 Qda7 Kd2 Rd4+ Kc3 Qd8 Nd2 Re8 Qd7 Rf8 Bg3 Qe7 Qd6 Qab7 Rc5 R4g5 Bg4 Qc6 Bh3 Qa4 Rb5 Bb7 Rd5 Rg4 Rh5 R4g5 Bg4 Rf4 Bh3 Bd5 Bf5 Rc4+ Kd3 Rgg4 Ke3 Rac1 Ke2 Ka1 Nb1 Rd4 a2 Kb2 Na3 Rb1 a1R Rbd1 Rc1 Ka2 Nb1 Ka1 Qc6 R1d3 Re1 Rd1 Qd6 Rc1 Bf2 Rg3 Ke3 Rfg4 Ke2 Rh3 Ke3 f4+ Ke2 Rb4 Kd2 Rf3 Bg3 Rd4+
Q2R2r1/1R2qNBk/nP3bN1/1BbPB1n1/1q3p2/4Q1B1/b3q1r1/KBB1B3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 c5 Kd2 a5 Kc3 g5 h4 f5 e4 Kf7 b4 Kg7 Kb2 a4 h6+ Kg6 d6 g4 h7 c4 e6 g3 d5 g2 e5 Ra7 e7 Ra6 e8Q+ Kg7 b6 Ra8 b7 Nf6 b5 Na6 b8B Nb4 d7 Ra5 h5 Qe7 d8B Ng8 e6 Qh4 b6 Be7 h6+ Kf6 Bg3 f4 Qe2 Na6 Nh3 g1B Nd2 Bc5 Nf3 c3+ Ka2 c2 Qe3 a3 Nhg5 Ra4 Nf7 Kg6 Bb5 Bf6 e7 Bf5 Qc6 Rd4 e8B Rd2 Qa8 Rg2 Bd3 Be4 Beb5 Bf5 Be1 Qf2 Rh5 Qe2 Bg3 Be4 Re5 Bf5 Re7 Be4 Rb7 Bf5 Bd2 c1Q Bb1 Qc3 Be1 Bc2 Bc1 Qb4 Be7 Bg5 Bg3 Nf6 Be1 Re8 h8B Kh7 Bg7 Rg8 Nh4 Ne4 Ng6 Bf6 Bg3 Ng5 Bd6 Qe4 Be5 Qa4 Bc3 Qb4 Bce1 Ba4+ Bc2 Bb3+ Kb1 Bfe7 Ra2 Bd8 Ka1 Bde7 Be5 Bf6 Bb1 Bc4 Rc2 Ba2 Rc3 Bd6 Rc6 Bc5 Rd6 Qe4 Qf3 Q4e3 Qf2 Bb3 Rd8 a2 Qf3 Bc4 Qe4 Bb3 Qd4 Bc4 Bb8 Qe7 Be5 Bb3 Qd2 Bc4 Kb2 a1Q+ Kc2 Qa4+ Kb2 Qb4+ Ka1 Ba2 Qc3 Rf8 Qe3 Kg8 h7+ Kg7 h8B+ Kh7 Bg7 Rh8 Bed2 Rg8 Bde1
Q2B1B2/nq1P1R1B/2qB4/B1PBR1r1/N2Nrp2/n2r1r2/6bQ/b1B1k1K1 b - - 0 1 illegal: No proof kernel
B1N1BBR1/1r1P4/q1BB1B1b/3n3R/Qp2bkb1/PbB1pr2/1KN2Q2/n7 b - - 0 1 illegal: No proof kernel
Q1r1k1n1/1P5Q/2Q4q/2pBP3/p1b4N/BQ1Q1Q1R/p1R3rn/1QNKbq2 b - - 0 1 illegal: Other
BrnBB1rB/1BR2R1K/7p/1pB1qB2/2NbPr1P/3k4/1Q4pn/N3Q1r1 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 f4 c4 Ne7 cxd5 Bf5 gxf5 Ng8 Kf2 Ke7 Kf3 b5 Ke4 c5 a4 g5 d4 c4 h4 g4 e6 Kf6 a6 h6 e7 c3 e8B c2 a5 g3 d6 f3 d5 f2 d7 g2 d6 Ra7 Nf3 Qe7+ Ne5 Rb7 d8B Bg7 d7 Ra7 Qe1 Rh7 Na3 Rc7 a7 Bf8 a8B Na6 Bb2 c1R Bb7 Nb4 a6 Rb1 a7 Rc5 a8B Rc8 Nc2 Rb8 Ra7 Na2 Na1 Rg7 e3 Rc1 Bd3 Nb4 Rf1 Nc2 Bb6 Qc5 d8B+ Ne7 Nc4+ Nd4 Bc2 Qc7 Bc5 Rg8 Bb1 Bg7 Bc2 Bh8 Bc3 Kg7 f6+ Kh7 f7 Kg6 Bb2 Nf3 Bg7 Nc8 f8Q+ Qf7 Qe7 Nh2 Qe5 Rd1 Qb2 Rc1 Bgf8 Bd4 Bg7 Rd1 Bh8 Rc1 Kd3 Kf5 Bb1 Qc7 Bc2 Kg4 Ke4 Kg3 Kf5 Qd6 Bg7 Qe5+ Kg6 Rd1 Kh7 Rb1 e4 Kf3 Bh8 Rd1 Bb3 Kf4 Rg1 f1R Rh1 Rc1 Bd1 Rg1 Bg4 Rc2 Bf5 Kf3 Qec3+ Ke2 Qcb4 Kd3 Qe1 Nf3 Rh3 Rf2 Rg3 Rff1 Rg7 Nh2 Rc7 Rf4 Ra6 Rf8 Rf6 Rg8 Rff7
QQ4b1/2r2Q1B/1R1B3K/N1p1b1n1/2p2QN1/QQrPqPkp/3p1n1R/7Q b - - 0 1 illegal: Other
qb5R/1kB2N2/n3RB2/2pN1b2/B2B3p/3q2b1/N1BPNPr1/1N1Q3K b - - 0 1 legal: proof: b4 a5 h4 b5 a4 f5 axb5 g5 hxg5 d5 e4 d4 exf5 d3 c4 Qd4 b6 Bg7 b5 Qd8 b7 Nd7 Bxd3 Bh6 b6 Ndf6 Be2 Nd5 cxd5 Ra6 Bxa6 Bg7 Bf1 Bf8 b8N h5 g4 e5 f6 c5 g6 e4 g5 e3 g7 a4 g6 a3 b7 a2 f7+ Ke7 d6+ Ke6 d7 Kd6 Bb5 Kc7 Kf1 e2+ Kg2 e1Q Na6+ Kb6 b8B Ne7 g8B Qe8 d8N Bd7 g7 Nc6 Ne2 Be7 f8B Nd4 Ba4 Nb5 Bc7+ Ka7 Nf7 Bh4 Nb4 Bg3 Bb2 Bf5 Bd4 Kb7 Be7 Qa8 Bh7 Rg8 Bef6 h4 Rg1 Bd3 Kh1 Bf5 Bg6 Qf1 Bh7 Rc8 g8N Rf8 Ne7 Rg8 Ned5 Rg4 Nc1 Qd3 Re1 Rg7 Re6 Rg6 Bce5 Nc7 Ne2 Na6 Bc7 Rg7 Nbc3 Rg4 Rb1 a1B Nba2+ Bb2 Ra1 Rg6 Nb1 Bc3 Nac1 Ba5 Ra3 Bb6 Na2 Ba7 Rb3+ Qb5 Rbe3 Qd3 Re8 Bb8 R3e6 Bf4 Rh8 Rg2 Bg6 Bg3 Re7 Bh3 Be4 Bf5 Re6 Qc4 Bec2 Qb5 Bf4 Qd3 Bc7
2bN2N1/bNNB1q2/pB1Bbnk1/r5r1/RP1B3R/6QP/4N1Kn/Bq6 b - - 0 1 legal: proof: e4 d5 h4 b5 c4 f5 exf5 b4 cxd5 b3 axb3 Bd7 b4 Be6 b5 Bc8 Be2 h5 Qa4 g5 hxg5 h4 Qd1 h3 Bc4 h2 Bf1 Qd6 Ra4 Qg3 Ra1 Qh3 gxh3 Ba6 Ne2 Bb7 Ng1 Bc8 f4 Kf7 Kf2 c5 d4 e5 b4 e4 f6 c4 b6 c3 f5 e3+ Kg2 e2 b7 e1Q g6+ Ke8 g7 Kf7 d6 a6 d5 c2 d7 Qh4 d8N+ Ke8 f7+ Ke7 f6+ Kd6 Bb5 Ke5 d6 Kf5 d7 Kg6 Qd6 Rh7 Ra4 Rh6 Qg3+ Kf5 Bb2 c1Q Bd4 Qc7 Nc3 Qhf4 Nd5 Qc2+ Ne2 Qb1 Rg1 Rh5 Nc7 Nh6 g8N Bc5 f8B Ba7 f7 Ng4 Bfc5 Kg6 f8B Qf7 Bb6 Rc5 Bc6 Rb5 Bd6 Ra5 Rc1 h1B+ Kg1 Qbf5 Rc4 Bd5 Ba1 Be6 Kg2 Qc2 Bde5 Qc1 Bed4 Qb1 Bb5 Nc6 b8B Ne7 Bc6 Nd5 Nb7 Nf6 d8N Kf5 Nd5 Kg6 Bd6 Rb8 Nc7 Rg5 Bd7 Nh2 Nc5 Rb7 Bdc3 Rb8 Rh4 Rb7 Bd4 Rb8 Ba5 Rb5 Bb6 Ra5 Ncb7
2nq1b1B/R1NB2kP/2BN4/2bN1B2/B1P2N2/3r1pKn/N2rr3/1r1R2Q1 b - - 0 1 illegal: No possible last move
bb2k3/N1Bpn1NK/2B3Q1/2r1P3/nP2N2N/b3NR2/rR3B2/1b1Bq1B1 b - - 0 1 illegal: No possible last move
B1N5/2BR4/2p1b3/P1R1B2R/n3k1nb/1B1QP3/b1RbRrn1/B2Nb1K1 b - - 0 1 legal: proof: e4 h5 d4 b5 c4 a5 g4 d5 gxh5 e5 b4 Ke7 bxa5 Nf6 c5 Ng8 c6 Kf6 Kd2 Qd7 cxd7 Ra6 exd5 Re6 d6 e4 d5 e3+ Kc2 e2 Kd2 Re3 fxe3 Rh7 Bh3 Rh6 Bf1 Rh8 Ke1 Kf5 Kf2 g5 d8R g4 h4 b4 a4 b3 a6 c6 h6 f6 d7 b2 a5 Ba3 d6 Bb7 h5 Ne7 a7 Bc8 a8B Ke5 h7 f5 h6 f4 Qd3 f3 Nc3 b1B Nd5 Ng8 Nb6 Ba2 Rh2 Nf6 Nh3 e1B+ Kg1 g3 Re2 g2 Nf2 Nh5 Nd1 Rf8 h8B+ Rf6 h7 Bab4 Bb2+ Bbc3 Rb1 Na6 Ba1 Nf4 Rc1 Nc5 Rcc2 Na4 Rf8 Bd2 d8R Bce6 d7 Be1 Nc8 f2+ Kh2 Bd2 Bg7 Be1 h8R g1B+ Kh1 Ng2 Rh5+ Bf5 Rfh8 Bh2 Rg5 Bg3 Rhh5 Bh4 Kh2 Nf4 Bg2 f1N+ Kg1 Nh2 Bd5 Ng4 Bb3 Bd2 Rf8 Bde1 d8B Ng2 Rf7 Bd2 Rd7 Bde1 Qd2 Ke4 Bc7 Be6 Rc5 Rf2 Bge5 Bb4 Qd6 Bbd2 Qd3+
1bN1KNR1/1RbBn2q/1B3p2/6Q1/Prq1Np1P/N2b4/6R1/1NkR2rR b - - 0 1 illegal: Other
1q4R1/1PQB2KR/ppbR4/nB2Bp2/2BNNB2/bR4Pr/4R3/1n1k2b1 b - - 0 1 legal: proof: f4 d5 a4 g5 c4 e5 fxe5 g4 cxd5 b6 a5 g3 a6 Bg7 hxg3 Bf5 g4 Bc8 g5 Bf8 b4 c5 Kf2 c4 Ra5 Qe7 Qa4+ Bd7 Qb3 Nc6 Ra1 Rb8 Ke1 Qc5 bxc5 Rb7 axb7 a6 Qd1 Na7 Kf2 Ke7 Kg3 h5 Kf4 f5 d4 c3 e4 c2 g3 h4 e6 h3 Ke5 h2 c6 Rh7 d6+ Kd8 g6 Be7 d5 Rg7 c7+ Ke8 c8B Kd8 Nf3 Ba4 d7 Kc7 d8R Bf8 d6+ Kc6 d7 Kc5 e7 Kb4 e8B Kb3 Nd4+ Kb4 Bf4 c1B Bc4 Ne7 Kf6 Nb5 e5 Ba3 e6 Rg8 g7 Bc2 Nd2 Kc3 Rb1 Rh8 g8R Rh5 Qc1 Nc6 e7 Rh3 Rb2 Bh6 Be5 Be3 Kg7 Na5 Rb1 Bb2 Bf4 Bg1 Ne4+ Kb4 Be5 Ka4 Qf4 Ba3 Rb3 Bb1 Bf6 Bc2 Qc7 Nc3 Be5 Bb1 Bh5 Bc2 e8R Nb1 Bhe2 Bd1 Bf1 Bf3 Re6 Bg2 Rde8 Bf3 d8B Bg2 Bg5 Bf3 Nd2 Bd5 Rd6 Bc6 Rf3 Kb4 Bd7 Ka4 Re7 Kb4 Be3 Kc3 B3f4+ Kb2 Re3 Kc1 Ne4 Kd1 Re2 Be3 Rg1 h1Q Rgg2 Bg1 Re3 Bc5 Rb3 Ba3 Bb5 Qh2 Bfc4 Qh1 Rf2 Qf3 Rf7 Qh5 Re7 Qe8 Re2 Qa8 Ree6 Qa7 Rh6 Qb8 Rh7
Qr1b1R2/pBR1R1b1/2n1pB2/4B3/KR1Nq2p/3PkRnB/1BP5/N2n4 b - - 0 1 legal: proof: g4 d5 a4 g5 h3 c5 d3 b5 axb5 f5 Kd2 d4 gxf5 g4 Ke1 g3 Kd2 Bb7 Ke1 Bf3 Kd2 Bg4 hxg4 c4 dxc4 d3 c5 Na6 Ke3 d2 Kf3 Rb8 Ke3 Rb7 Kf3 Rd7 Ke3 Rd3+ exd3 Bg7 Ke2 Bf8 b4 Kf7 f4 Kf6 c6 h5 g5+ Kf7 g6+ Kf6 b6 e6 g7 g2 c7 Bc5 c8B Rh7 b5 Be7 b7 Nb8 b6 Ba3 Bb2+ Qd4 Nf3 g1B Bh3 Nh6 g8R Bf2 Re8 Rf7 Re7 Na6 b8B Bc5 b7 Nb4 Ra4 Na6 Rb4 Qc3 Nd4 Kg7 f6+ Kg6 f5+ Kg5 Be5 Be3 b8B Qb3 Bb7 Rg7 f7 Bb6 f8R Bg1 f6 Qd5 f7 Bc7 Bf6+ Kf4 Qf1+ Bf2 Qg2 d1N Nd2 Rg8 N2b3 Nf5 Kd2 Ng3 Na1 Qe4 Rc8 h4 f8R Be5 Rcc7 Rh8 Kc1 Ke3 Rf1 Rg8 Kb1 Be1 Ka2 Bd2 Rb5 Ba5 Kb3 Nb4 Ka4 Nc6 Rb4 Bb6 Rcc8 Bd8 Rf2 Bf4 Bbe5 Bh6 Rcc7 Bg7 Rf4 Qf5 Qd5 Qh7 Qd7 Qe4 Qc8 Rh8 Qa8 Rh5 Bd6 Rb5 Bde5 Rb6 Ba6 Rb8 Bb7 Qg2 Rf1 Qe4 Rf3+
K2B1nN1/n1q2B1n/Nbr5/2nPB1R1/Q6P/2N2nB1/1RN1b2k/rN1q1B2 b - - 0 1 illegal: No possible last move, all moves rejected
NN2BRnN/3NB3/n3R1Nb/1K3BB1/2nqbq1P/3k2P1/2Q1r3/n1b1rB2 b - - 0 1 illegal: No proof kernel
NR1r2BQ/1rnBb1n1/R1RrBN1R/Pr1q4/1R6/B4n2/1K2Pq1k/4Bb2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a6 Kd7 d4 c5 Kd2 g5 Kc3 f5 h4 b5 a4 g4 d6 Ke6 a7 c4 d7 f4 h6 Kf5 d5 g3 d6 Kg4 e6 g2 e7 Kg3 e8B f3 h5 f2 h7 Bg7+ Qd4 Be5 h6 Qh4 d8R Na6 d7 Qf6 Nd2 Nb4 Rh4 Qf5 Ngf3 g1N Bh3 f1Q Nh2 Nf6 Ng4 Rb8 a8B Nh5 Bd5 Bf6 a5 Bb7 Ba3 Na6 Rc1 Be7 Rc2 Rg8 h8B Q1f2 h7 Nc7 Bf6 Rf8 h8R Bc8 Bg8 Rb7 Bg5 Nf3 Rh6 Qe4 Qh8 Ng7 Nf6 Kh2 Rc1 Qed4+ Kc2 c3 Nc4 b4 Bd2 b3+ Kb1 b2 Be1 Qd2 Nb6 c2+ Ka2 b1R Na8 R1b6 Rb4 Rb5 Kb2 Qd6 Rd1 Qc6 Rd6 c1R Bef7 Qe4 Ra6 Rc6 Re8 Qd5 d8R Rcb6 Rd6 Bf5 Rb8 Rd8 Be8 Be6 Bd7 Bg4 Re6 Rc6 Re3 Rd6 Rc3 Bf5 Rcc6 Be6 Bf1+ Bh3 Bg2 Nh4 Bf3 Bf1 Bh5 Nf3 Bhg4+ Kg1 Bh3 Kh2 Bhe6+
rBb2K1N/q3n1r1/n3k3/2B2N2/r3NnP1/P4B2/nR1R1QNb/2B2BNr b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 b5 Ke4 e5 f4 h5 g4 c5 d4 c4 a6 h4 g6 h3 d6 b4 Kd5 c3 g7 b3 a7 b2 f6 e4 a3 c2 f7 e3 f5 h2 f6 e2 Nd2 e1N Ne4 b1N Qd2 Qc7 Ra2 Rh4 Rb2 Qb6 Qf2 Be7 f8N+ Ke8 d7+ Kf7 d8N+ Ke8 Nde6 Kf7 Ng6 Rh6 Nh8+ Ke8 f7+ Kd7 f8B Nd3 Nf4 Bh4 Bc5 Rc6 Ng2 Nf4+ Ke5 Nh6 g8N Nc3 d5 Rc7 d6 Na6 Ne7 Na2 Nf5 Bg3 Kf6 Ng8+ Kf7 Ne7 Kf8 Ke6 d7 Qb7 d8B Rd7 B1e3 c1R Bc7 Rc4 Bc1 Ra4 Rd2 Ng8 Rb2 Rg7 Bb8 Ne7 Bc7 Rb8 a8B Qa7 Bc6 Ra8 Bb8 Ne2 Nc3 Nf4 Bf3 Qc7 Ne4 Qd7 Ne2 Qa7 Rg1 h1R Rd2 Rh5 Rh1 Rhh7 Ng1 Rh6 Rh5 Rhh7 Rg5 Rh1 Rb2 Bh2 Rg6+ Kd5 Rd6+ Ke5 Rd7+ Ke6 Rdd2
2R4K/rk1Q1Rr1/1Pr3qb/2B1Nb2/1bR4N/1N1P3N/1rn1R1b1/1B1n1NR1 b - - 0 1 illegal: No possible last move, all moves rejected
B5K1/3rNnbB/4br2/3B4/PNpB1N1Q/3r3N/1PB1bnn1/kq1R1N1R b - - 0 1 illegal: No proof kernel
1BrBB1R1/4N1b1/1nb5/r1BN2Q1/qnNNB1PK/N2pb3/P1R5/2q2k1n b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 f4 Kf7 Kf2 h5 Kg3 d5 c4 b5 g6+ Kf6 c6 e5 c7 b4 a6 b3 a7 d4 c5 b2 g7 e4 c6 e3 Qg4 e2 Na3 b1Q Kh4 Qb5 Rh2 Qb4 Nf3 Ba6 c8N Bb7 c7 Qb1 Nb6 Qe7 c8N Qb3 Nd6 Bd5 Ndc4 e1B+ g3 Bc3 Rc2 Qe3 Bd3 Qd2 Be4 d3 Nd4 Qa4 Rb1 Ne7 g8N+ Kf7 f6 Nc8 f5 Bg7 Rb4 Na6 Ne7 Bc6 Nbd5 Nb6 Qg5 Rhc8 g4 Qf4 Rb3 Nb4 Rb1 Qf1 Bf4 Qc1 Bb8 Bd2 Rbb2 Be3 Rb3 Ke8 f7+ Kd8 f8B Kd7 Kh3 h4 f6 Bb5 f7 Bc6 Kg2 h3+ Kg3 h2 Kh4 h1N Rb1 Qd2 Rf1 Qd1 Rf6 Qc1 Rg6 Bh8 Rg8 Bf6 Ndf5 Ke6 Bg7 Bb2 f8B Bbd4 Bge5 Bc3 Bec7 Bg7 Ncd6 Ke5 Bd8 Be8 Ng3+ Kd4 Ndc4 Bd7 Bg6 Bb5 Be8 Bc6 Ngf5+ Ke4 Be5 Kf3 Bb8 Qd2 Nd4+ Kg2 Ng6 Kf2 Bc5 Kf1 Nge7 Qc1 Bbd6 Rab8 a8B Rb7 Bb8 Ra7 Bb7 Ra5 Nc7 Bd7 Be4 Bc6 Ncd5
2nRB1nq/Bk6/2N1P3/N2P3R/q1rN1Q2/p2RbRb1/1r2b2N/N1q1R2K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg2 c5 d4 Kc7 h4 g5 e4 f5 b4 a5 h6 g4 b6+ Kb7 h5 a4 d6 a3 d7 f4 b5 g3 e6 c4 d5 c3 e7 c2 e8R Qg5 h7 Qf6 h6 Ra4 d8N+ Ka8 b7+ Ka7 e5 Qf5 e6 Ne7 Qd2 Ra5 Nc6+ Kb6 Rh3 f3+ Kh1 f2 Nd4 Bd7 Ngf3 Ka7 Qf4 Bg7 Nb3 Na6 b8N Bb2 b6+ Kb7 Bb5 Ra4 Nh2 Qe5 Nc6 Nc7 Be3 Rc4 Rd8 Ng8 N1d2 Na8 Re1 c1Q Na1 f1Q+ Bg1 Bd4 Ndb3 Be3 Ncd4 Qg7 Ba4 Bb5 Rf8 Ba6 Be8 Qd7 Rh5 Qh3 Rf6 Qa4 Rff5 Ne7 Bf2 Rf8 h8R Ng8 h7 Rf7 Rf6 Rfc7 Rff5 Rb4 Bg1 Be2 Rf6 Rcc4 Rf8 Ka6 b7 Nb6 b8N+ Kb7 Nbc6 Nc8 Rf6 Nge7 Rhf8 Ng8 h8R Qh4 Rff5 Qf6 Rh3 Bf2 R8h5 Qh8 Qd2 Be3 Rf3 Bf4 Rd3 Be5 Qf4 Rb5 Nd2 Rb2 N2b3 Bc7 Ndc2 Be5 Ba7 Bd6 N2d4 g2+ Kg1 Be5 Rhf3 Bc7 Bf7 Bb8 Rd8 Bc7 Be8 Bd6 Kf2 g1B+ Kg2 Be3 Kh1 Bb8 Qg5 Bg3 Qg4 Bh4 Qf4 Bg3 Nba5+
4rN1N/1RR1B3/p2nN3/3qP1K1/1P2k1NB/B1rn2b1/N1qQ2r1/1bB2B1q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg3 g5 b4 c5 e4 f5 d4 c4 h4 c3 h6 a6 h5 g4 Kh4 f4 h7 g3 h6 c2 e6 Kf6 e7 f3 e8N+ Kg6+ Nf6 f2 d6 g2 d7 Ne7 b6 Rg8 h8B Ra7 b7 Bg7 d5 Qf8 d8B Ra8 h7 Bh3 d6 Bh6 d7 Qf7 Ng4 Nc8 Ne2 g1R Be7 Nd6 d8B Qd5 Bhb2 Bf4 e5 Kf5 h8N Rg2 Qd2 Ke4 Nd4 Re8 Ne6 Nd7 b8N Bg3+ Kg5 Nc5 Ba3 Nd3 Nd7 Rc8 Ndf8 Rc3 Ra2 Rg1 Rh2 Bg2 Rh4 Bh3 Rh7 Rg2 Be2 f1Q Rg7 Qh1 Bf1 Nc8 Rb2 Nd6 Rb3 Rc4 Rc3 Rc8 Rc6 Rc7 Rb6 Rc6 Rb7 Rc3 Bcb2 c1Q Rc7 Qc2 Bc1 Rb3 Nc3+ Kf3 Ne3 Bf5 Na2 Rc3 Ng4 Ke4 Rb7 Ne1 Bf6 Nd3 Rgc7 Bg6 Bde7 Qa4 Rc8 Nc5 Nd7 Kf3 Rcc7 Bb1 Ndf8 Nd3 Kg6 Qc2 Bh4 Ke4 Kg5
Nrk4B/1NR4R/1b1qQKB1/1R5R/rBrP4/BB6/R1bPrp2/2n1n1b1 b - - 0 1 legal: proof: g4 d5 f4 b5 a4 h5 gxh5 e5 fxe5 d4 axb5 d3 cxd3 Rh6 d4 Rh8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 g5 e4 c4 b4 f6 h4 g4 b6 a4 b7 a3 b5 c3 b6 g3 h6 c2 h7 g2 h5 a2 e6+ Kc6 e5 Qe8 h6 Na6 b8B Kb7 Bc4 Qc6 Ne2 g1R Bb3 Be7 Nec3 Rg6 Ne4 Rg4 Qe2 Bd6 Ba3 c1R Rh5 Rc4 Nbc3 Rg2 Nb5 Nc5 Nc7 Raa4 Na8 Nd3 Qe1 Bd7 Qe3 Be8 e7 Ne1 e6 Bh2 Bbd6 Bg1 Bdb4 Re2 Nd6+ Kb8 b7 Bg6+ Kf4 f5 Kg5 f4 e8B f3 e7 f2 Qe6 Bc2 Bg6 Nf6 e8R+ Qc8 Rg8 Qf8 Rg7 Nd5 Rd7 Rg8 h8R Nf4 h7 Nfd3 Bc5 Nc1 Bcb4 Qc8 Kf6 Qc6 Re7 Rc8 Rd8 Qd7 h8B Qc7 Rdd7 Rd8 Ne4 Qd6 Reh7 Rg8 Nc5 Rd8 Rb1 Re8 Rb2 a1B Ba5 Rc8 Ra2 Bc3 Ne4 Ka7 b8R+ Ka6 Rbb5 Rb8 Rbe5 Bb4 Rb5 Bc5 Bc3 Bb6 Bcb4 Qc7 Nd6 Ka7 Ne4 Kb7 Nc5+ Kc8 Nb7 Qd6 Rc7#
br2R3/N1N2P2/5pnB/3NBk1b/2Bb2Pr/R1B3n1/2K1NQB1/qrb2N2 b - - 0 1 illegal: No possible last move, all moves rejected
1B1NrkqB/3PPN2/1RpB3K/2r1N1R1/1QB4N/2N3n1/B2n2br/b4br1 b - - 0 1 illegal: No possible last move, all moves rejected
3Kb2N/k2N3n/3QB1rB/1PRq1RRn/2R3q1/2br4/BBb2pP1/R3Bb2 b - - 0 1 illegal: No proof kernel
b2KB2R/1pP3rB/5Nb1/8/r2RqB1B/n2B2R1/Nb1P1bRn/1k3RqQ b - - 0 1 illegal: Other
B2B2K1/bnNn3p/R1Nb2nr/1R5b/4P1Q1/B4B1r/1N1NBk1P/N2n1r2 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 axb5 e5 fxe5 f4 d4 Qf6 dxc5 Qf5 gxf5 Ke7 Nd2 Kd8 Nb1 Ke8 Kd2 Ke7 Kd3 a5 Kc4 g5 Kd5 g4 b4 d6 e4 a4 c4 g3 c6 f3 c7 a3 f6+ Kd7 b6 a2 b5 g2 f7 f2 c5 Ra4 b7 Rb4 b6 Ke7 e6 Kf6 c6 Bg7 f8N Rb2 e7 Rc2 e8B Bh3 c8B Re2 c7 Bd7 Nd2 Kg5 Bh5 Kf4 Ba3 Ke3 Bf3 Bh3 Nb3 Nd7 b8B Be5 b7 Bg4 Ne6 Bh5 Rb1 Rb2 B1e2 f1R Na1 Rb6 Rb5 Kf2 Ba7 Bg3 b8N Bf4 Bb7 Ne7+ Kc4 Be5 c8N Ng6 Kd5 Rf8 Nc6 Rf4 Ba8 Rh4 Nc7 Rh3 Ke6 d5 Kf7 d4 Bb8 d3 Kg8 d2 Nd6 Bg3 Nc4 Bd6 Nb2 Ra6 Qb3 d1N Qe6 Rb6 Qg4 Ra6 Nc2 a1N Ba7+ Rb6 Bb8 Nb3 Na1 Nbc5 Ba7 Ra6 Bb6 Ra7 Ne6 Ra6 Bd8 Nb7 Nc7 Ne3 Bd1 Rb6 Bfe2 Ra6 Nf3 g1B Nd2 Rb6 Bf3 Ra6 Bde2 Nd1 Na4 Ke1 Nb2 Ba7 Rg1 Kf2 Qf4 Nh8 Rg6 Rb6 Rh6 Ng6 Qg4 Bg3 Nd4 Nh4 Rg6 Rf6 Rg7 Rh6 Rg6 Be5 Re6 Ng6 Ra6 Bd6 Nc6
2B2BK1/BPR5/2bRR1nP/1R6/b1N1pqB1/bR2p3/3NQk1n/r1r2Bn1 b - - 0 1 illegal: Other
RRr1r3/1Br4n/1B1bk3/3bN3/Bp3nK1/RpPBQBN1/qP2q2R/7R b - - 0 1 illegal: Other
K1RbB3/N1q1N1R1/2rP1P2/p1r2RNR/b2rn2N/1kB5/1pRN3q/1Q5n b - - 0 1 illegal: No proof kernel
5n2/q2RN3/P6N/1RRpr3/Q1NKbp1P/4B1r1/q1Rb1kB1/nN1nN1R1 b - - 0 1 illegal: No possible last move
1R1r1r2/b1R2ppb/1N2N3/K3nB1P/BB5N/P3q2B/N1n3B1/kQ1n2qN b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 h4 Ke7 d4 b5 Kd2 c5 Kc3 c4 Kb4 c3 e4 c2 e6 Kd6 a6 Qe7 e5+ Kc7+ d6+ Kb6 h6 Ra7 h7 Rc7 d5 Qe8 h5 Rb7 a7 Bd7 a8B Qc8 e7 Qc7 e8B Qc6 a3 Ne7 e6 Nf5 e7 Qc7 Nc3 Nh4 Rb1 Nf5 Nh3 Bc6 d7 Nh4 d8N Qc8 d6 Qe6 d7 Qe3 Na2 Be4 Nf2 Nf3 Ne6 Ne1 d8N Rd7 Nb7 Rd8 Bd2 c1Q Nbc5 Nd7 Bh3 Ne5 Bd7 Bd3 e8B Nc2+ Kb3 b4 Ka4 b3 Bag2 b2 Bb4 Rg8 h8N Bh7 Ng6 Be7 Qf3 Rf8 Nh4 Qg1 Rh2 Bd6 Nh1 Bb8 Qd5 Ba7 Qb3 Bg6 Rc1 b1N Bc8 Be4 Nd7+ Kc6 Ka5 Nc3 Bf5 Nd1 Rh3 Qef2 Rd3 Qe3 Rd5 Bd3 Bfh3 Bh7 Rb5+ Qe4 Rb8 Qf3 Qb2 Kd5 Nb6+ Ke4 Qb1 Kd3 Ba4 Qfe3 Qb2 Ne1 Rc7 Nc2 Nc3 Kd2 Qb3 Kc1 Bf5 Nb2 Na2+ Kb1 Bgh3 Ka1 Bb7 Nd1 Ba8 Qc3 Bag2 Qce3 Qb1+
4N3/1Pq2R1r/B1b1pB1n/4qRBn/1Qp1R3/4RrN1/K1P2r1B/1RB1k1b1 b - - 0 1 illegal: No possible last move, all moves rejected
R5N1/3RNBk1/nr1Q3B/K1n1bRn1/pR1P3B/Pq6/2Bp1rq1/2R2n1B b - - 0 1 illegal: No possible last move
b2N1nnR/1bk3Np/Q1rp3P/n6N/PR2Rb2/2N1R3/bR1K3B/1r2N2B b - - 0 1 legal: proof: f4 a5 g4 f5 b4 c5 bxa5 e5 fxe5 f4 d4 Qf6 dxc5 Qf5 gxf5 Bd6 Bd2 Be7 Bc1 Bf8 e4 Kd8 a4 b5 h4 g5 c4 b4 f6 g4 a6 d6 f7 g3 h5 f3 c6 f2+ Kd2 b3 e6 b2 a7 g2 c5 Bd7 e5 Na6 h6 Rb8 a8R Kc8 e7 Be6 e8N Bd7 c7 Nb4 e6 Bb5 e7 Bg7 f8N Bf6 Nc3 b1B Qe2 Na6 Ng7 Bc6 e8N Kb7 c8R Bb5 c6+ Kb6 c7 Be4 Rh4 Bbc6 Nf3 g1N Nfe6 Nb4 Ra2 Nh3 Nd8 Ng5 Rb2 Ne6 Nh5 Nf8 Ne1 Be5 Bg2 f1B Neg7 Bb7 Bh1 Bf3 Re4 Bf4+ Re3 B1g2 Ra5 Bfd5 Rc5 Bc4 Re5 Ba2 Re4 Ba8 Qc4 Rb7 Rb8 Bf3 Rc2 Nc6 c8R Na5 Qd3 Bg2 Rcc4 Bf3 Rb4+ Kc7 Qa6 Rb6 Rcb2 Bg2 Re6 Bgb7 Ree4 Rc6 Rb6 Be5 Re2 Ng6 Nf7 Bc8 Kd1 N8e7 R2b5 Bb1 Bf4 Ba2 Bh2 Bf4 R2e3 Rd8 Kd2 Rh8 Nf3 Rd8 Nf5 Rg8 Rb2 Bcb7 R6b4 Rg7 Rg8 Nf8 Rh8 Rg1 Nd8 Rb1 Ne1 Ng8 Nfg7
2n1N3/1qB3B1/2n1B1R1/B7/1bKR2pr/P4Rrp/RqPR1pbB/NkQ5 b - - 0 1 illegal: No possible last move, all moves rejected
R1Br1B2/pBb2bn1/5rk1/1Nq3Rq/P1qQ2B1/P3Rp1N/1B3p2/RK3R2 b - - 0 1 illegal: Other
b1r1NN2/1p6/R1PbpRp1/rRRBr3/1P4Bq/B7/p1KQ4/B1n2RBk b - - 0 1 illegal: Other
RB3r2/3NK2B/2p1P1B1/nr2Qq1R/3q4/Pq2b1kN/q2R3N/1R1R1B2 b - - 0 1 legal: proof: b4 d5 f4 e5 fxe5 a5 bxa5 h5 g4 d4 gxh5 d3 cxd3 Qd4 a3 Qf4 d4 Bh3 Nxh3 Nc6 d5 Qf6 Ng1 Nd4 Qb3 Nc2+ Qxc2 Qe7 Qd1 Qd8 Kf2 Ke7 Ke3 b5 Ke4 g5 Kf5 f6 h4 b4 d4 g4 e4 b3 h6 b2 a6 g3 d6+ Kd7 h7 g2 e6+ Kc6 e5 Kd5 d7 Be7 h5 Bc5 h6 Rc8 a7 Bf8 e7 Qe8 d8N Qf7 e8B Qg7 e6 Qe7 a8B+ Kd6 d5 Rb8 Qh5 Rb6 Bf4+ Kc5 d6 Kd4 d7 Rc6 Nb7 Qb4 Nh3 g1Q Bg6 Rb6 Nd2 Qb3 Rb1 Rb5+ Nc5 Qge3 Rd1 b1Q+ Be4 Q1a2 d8R+ Bd6 Rg1 Qec3 Be5+ Ke3 Nf3 Qd4 Nd7 Bc5 Nf4 Kf2 Nh2 Bb6 Rh1 Kg3 Qe2 Ba5 Bb1 Bd2 Qe4 Be3 Qd5 Bf2 Bd6 Bg1 Qe5 Be3 Bg2 c6 Bh5 Rb4 Nb6 Rc4 Nh3+ Bf4 Rc1 Qdd2 Rhd1 Rb4 Kg6 f5 Kf7 Ne7 Bd3 Qdb2 Rb1 Re8 h8R Rb5 h7 Nd5 Rf8 Ne3 h8R Qd2 Rd7 Rb8 Ke7 Nc4 Bf7 Qdc3 Rh5 Na5 Bg8 Qc5 Bh7 Qcd5 Bc7 Qdc4 Bc2 Rd8 R7d2 Qd4 Nd7 Rc8 Bb6 Rb8 Ba7 Rc8 Qf6 Be3 Qe5+ f4 Bcg6 Rd8 Qg7 f3 Qe5+ Qf4 Re8 f2 Rg8 f1Q Rf8 Qfd3 Bf1 Qd4 Rg8 Rf8 Rh8 Rf6 Ra8 Rf8 Bb8 Bg1 Qe4 Qfe5 Nf4 Qf5 Qe5 Be3 Nh3+
R2q2qB/PBnBn2k/1Q2Pb1B/1n1N3p/4N3/4nR1B/N4K1B/5Q1q b - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 e5 g4 d5 cxd5 b4 f4 Be6 fxe5 Bc8 a4 Ra7 Ra3 Rb7 Ra1 Rb5 axb5 Bd6 Kf2 Be7 Ke1 Bf8 b6 f5 h3 h5 Ra3 g5 Ra1 f4 Ba3 Bf5 gxf5 g4 Bb2 g3 Bc1 Rh6 Nc3 Rg6 Nb1 Rg4 hxg4 Kf7 Nh3 Ke7 Ng1 Ke8 d4 Kf7 e4 Kg7 e6 c5 d6 f3 d5 g2 a6 c4 f6+ Kg6 e7 b3 e8B+ Kh7 b7 c3 f7 c2 g5 b2 g6+ Kh8 g7+ Kh7 d7 Qa5+ Nd2 b1N d8B Qa2 d6 Nd7 b8B Be7 f8N+ Kh6 e5 Qb3 Kf2 Bf6 Rh3 Qf7 Ne6 Nf8 d7 Be7 Ne4+ Nd2 Ne2 g1N N6f4 Nb3 Nd5+ Kh7 Bh6 c1Q N2c3 Ne6 Na2 Nc7 e6 Bg5 Bf6 Na5 d8Q Ne2 Bd7 Qd2 Qb1 Ne7 g8B+ Kg6 Qc1 Nc4 Bh8 Bf6 Rg3+ Qg5 Bh3 Nc3 Qf1 Qg7 Bf7+ Kh7 Bfe8 N3b5 Bc8 Qg8 Bb7 Ne3 Bd7 Ne8 Qb6 Nec7 a7 Qd8 Rc1 Qgg8 Rc2 Na8 Rc8 Nac7 Ke1 f2+ Ke2 Na6 Bd6 Nac7 Rf3 Qg2 Ra8 Qg7 Qh1 Qgg8 Bh2 f1Q+ Kd2 Qc4 Ke1 Qc1+ Kf2 Qb1 Qg2 Qh1 Qf1
3N1R1r/8/B5b1/NP2BQ1R/kRn1K1RN/1bqPB1bB/6r1/1n2rnR1 b - - 0 1 illegal: No possible last move
4Q3/q1n1BBr1/6q1/2N2k2/bqn1RN2/1PrR3R/Kb1B1NPN/1N2Bn2 b - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 a5 hxg5 f5 exf5 a4 b3 a3 Bxb5+ Nc6 Bf1 Nb8 Bxa3 Nh6 Bc1 Ng8 a3 Ra5 Ke2 Ra7 Ke1 Ra8 d4 Kd7 Kd2 c5 Kc3 h5 Kb2 e5 f4 h4 f6 e4 d6 Ke6 g6 e3 a4 c4 f7 c3+ Ka2 e2 f5+ Kf6 d7 e1N g7 h3 a5 c2 d5 h2 d6 Rh7 a6 Ne7 g8N+ Ke5 f6 Nf5 a7 Ng7 Bc4 Bb7 Nh3 Ne8 Qh5+ Ke4 Bd2 c1Q Nf2+ Kd4 Nh6 Nc7 Nhg4 Qe7 d8N Rg7 d7 Bc6 Nb7 Ba4 d8N Nc6 Nc5 Rc8 a8R Na5 Ra6 Qc3 Re6 Qd6 Qh8 Be7 f8B Qb4 f7 Bf6 Be7 Nc2 Qe8 Ne3 f8B Nf1 Re3 Qg3 Bf7 Nc4 Nde6+ Kd5 Re4 Bb2 Bh4 Qe3 Bfe7 Qh6 Rg1 h1Q Nh2 Qg6 Bg3 Nfe3 Re1 Nf1 R1e3 Qg1 Bgh4 Be5 Rh3 Bb2 Nd1 Qe3 Bhe1 Qd4 Nf2 Qe3 Rg4 Ke5 Re4+ Kf5 Nf4 Qd4 Na3 Qe3 Rd1 Qd4 Nb1 Qe3 Na6 Qa7 Nc5 Rd8 Rc1 Rd3 Rc3 Rg3 Rd3 Re3 Rd8 Rc3 Rdd3
2R2B2/2q5/2nn1Q2/1BPkn1qN/4r3/PqBN1N1R/1Bb5/NRr1BKb1 b - - 0 1 legal: proof: e4 c5 g4 h5 gxh5 a5 d4 f5 exf5 b5 dxc5 a4 b3 a3 Bxb5 Nf6 Bf1 Ng8 Bxa3 Nf6 Bc1 Ng8 a3 Qb6 Ba6 Qc7 Bf1 Qd8 f4 Kf7 c4 g5 h4 d5 h6 e5 h7 d4 f6 Ke6 b4 d3 b5 e4 f5+ Ke5 c6 g4 b6 g3 b7 e3 c7 g2 c5 e2 f7 Nh6 h5 Qd5 f6 Be7 f8N Nd7 b8N Qb7 f7 Ng8 h6 Nb6 Bb2+ Kd5 Nd2 Be6 c8R Bf5 Nbd7 Ra4 Ne6 Bg5 f8B Qc7 Rb1 Re4 Rh3 Be3 Ngf3 g1Q Ng7 Ne7 Nh5 Nc6 Nde5 Nc4 Nb3 Nd6 Na1 Qg5 Qd2 Bd4 Qf4 Bg1 Bc3 Rg8 h8B Rg7 h7 Rf7 Kd2 e1N Bhg7 Bg6 h8B Re7 Kd1 d2 Bb5 Nd3 Qf6 Rc4 Bb4 Rc1+ Ke2 Be4 Ng4 Nde5 Nf2 Bc2 Nd3 Bh2 Kf2 d1Q Be1 Bg1+ Kf1 Ng6 Qf4 Re4 Bb2 Nge5 Qf5 Qdd2 Bf6 Qc3 Qg6 Qb3 Qh6 Ng4 Bfc3 Nge5 Qf6
RR2Q1q1/R1B3bP/3n1NB1/1kN2R2/1bbRP1B1/1nqr4/4KB2/1rN2n2 b - - 0 1 illegal: No possible last move
2RBr1B1/b2r1P2/B1bQ1N1B/3NN1n1/1P1r1QB1/K3nrq1/1Bb1R3/k7 b - - 0 1 legal: proof: b4 a5 e4 b5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 Ra6 Qxa4 Bb7 Qd1 Bc8 a4 Ra8 Bxb5+ Qd7 Bf1 Qd8 g4 Kd7 f4 Kd6 d4 h5 Kd2 e5 Kc3 c5 Kb2 e4 a5 h4 a6 h3 f6 c4 a7 h2 g6 c3+ Ka3 e3 f7 e2 g7 e1R f5 c2 f6 Re6 g5 Re3+ Nc3 Rh6 g6 Qb6 Ba6 Qb5 Qd2 Rf3 Ra2 Nc6 Qf4+ Ne5 Rb2 Ne7 g8N Rb8 a8B Qd3 g7 Nf5 Bc6 Ne3 Bd7 Rh7 Bg4 Be7 f8B Bf5 f7 Rh4 Ra2 Re8 Nf6 Be4 g8B Bg6 Bd2 c1R Bh6 Rd1 Bc1 Bd8 Re2 Bb6 Ka4 Ba7 Ka3 Kc7 d6+ Kc6 d7 Bh7 d8Q Qg6 Bh5 Qg3 Qb8 Bc2 Bg4 Rd2 Ncd5 Rd1 Bb7+ Kb5 Qd6 Kc4 Bbc8 Rff1 Bb7 Nf3 Bbc8 Ng5 Nf3 Rf2 Rg1 h1B Ne5+ Kb5 Rf1 Rf3 Rff2 Bb3 Rc2 Ba4 Rc7 Bc2 Re2 Rd2 Ka2 Ka4 Ba6 Rd1 Rc8 Rd3 Nc7 Rd1 d5 Rd4 Qf8 Bg2 d6 Rh1 d7 Rhd1 d8B Bh1 Ka1 Kb3 Qc5 Rd7 Qd6 Rd4 Ncd5 Rf1 Nb6 Bc6 Nbd5 Rf2 Nb6 Kc3 Ka2 Rf3 Ka3 Bd3 Bd2+ Kc2 Bc1+ Kb1 Nbd5 Ka1 Qe6 Bh7 Qd6 Bc2 Bb2+
1qkN4/6RK/N2N1B2/1R1n2qb/bR1P1r1R/3BR3/P2q1q2/Qr1qBB2 b - - 0 1 legal: proof: f4 a5 e4 f5 c4 g5 h4 d5 cxd5 a4 g4 a3 e5 Bg7 gxf5 g4 bxa3 Nd7 a4 Ndf6 exf6 Bh6 a5 Bg5 hxg5 Qd7 Ba6 Qd6 Bf1 Qd8 Kf2 Kd7 Kg3 h5 Kh4 c5 d4 e5 g6 b5 Kg5 b4 a6 g3 d6 e4 g7 e3 Kg6 e2 f7 e1Q f8B h4 a7 c4 f6 g2 f5 b3 f7 h3 f6 c3 Be7 b2 f8R h2 f7 c2 Nd2 b1B Re8 Rh4 f8R Rh8 Nb3 Nf6 g8R Rh7 Bd2 Qe2 Be1 Rf7 Nc5+ Kc6 d7 Kc7 Nh3 g1Q+ Ng5 Qef2 Rg7 Nd5 Kh7 c1Q+ Nge4 Qcf4 Bf6 Rb8 a8B Bc2 Rb1 Ba4 Rb5 Qgg5 Qa1 Q4d2 Nd6 Ba6 Rb4 Be2 Re3 Bh5 Rb5 Qc8 d8N Rb6 Bb7 Qb8 Ba6 Rb7 Rh8 Rb6 Rg1 h1Q Rg4 Qhf3 Rh4 Qfd1 Rb4 Rb7 Bad3 Rb6 Na6+ Kd7 N6b7 Kc8 Rhe8 Rf8 R8e5 Rf7 Be7 Rf4 Bf6 Rc6 Rf5 Rc1 Rfe5 Rb1 Rf5 Nc7 Rfb5 Nd5 Nd6+
1Bq1r3/6r1/1B1k1b1q/1N2N1QN/B2P1BqR/bq2r1Bn/4Q1PB/6RK b - - 0 1 legal: proof: f4 d5 h4 g5 hxg5 b5 a4 e5 axb5 d4 c4 e4 d3 Bh3 e3 Nc6 exd4 Ne5 fxe5 Bd7 Bd2 Be6 Bc1 Bd5 cxd5 Qe7 Kf2 Qd6 Ke1 Qd8 Kf2 Ke7 b4 a5 d6+ Ke6 d5+ Kd7 g6 h5 b6 f5 g7 c5 b5 c4 b7 f4 b8B h4 b6 f3 b7 c3 Ne2 c2 Kg1 h3 Na3 a4 Nc4 e3 Ng3 a3 Qe2 a2 Nh5 Nh6 g8Q Qb6 Qg5 f2+ Kh2 Rh7 e6+ Ke8 e7 Kd7 e8N Nf7 Nc7 Rg7 Rg1 Qb3 Kh1 Ra3 Rb1 a1B Bd2 Bf6 d4 c1Q Ne5+ Kd8 d7 Ke7 d8B+ Kd6 Ba7 Qc6 b8B Qcb7 Bb6 Qc8 Qd1 e2 Bf4 e1R Bb5 f1Q Ba4 Re3 Qe2 Qf3 Rbf1 Qfg4 Bh2 Qh4 Rf4 Qg3 Rh4 Qgg4 Ba5 Ra1 Be1 Rd1 Beg3 Re1 Nc6+ Kd7 Bf4 Ba3 d6 Re8 Qc2 R1e3 Qe2 Nh8 Bfg3 Ng6 Be7 Nf4 Bf8 Rg8 Bh6 Rg7 Ne5+ Kd8 d7 Ke7 d8B+ Kd6 Nd5+ Rc7 Qg6 Qgf5 Rg4 Nd3 Bhf4 Qb4 Qg5 Qb2 Ng7 Qh7 Nh5 Qh6 Rh4 Qb3 Rf1 Nf2+ Kg1 Ke6 Rd1 Rh7 Bb6 Rg7 Nc7+ Ke7 Kf1 Kd6 Bg1 h2 Rb1 Qbe6 Re1 h1Q Ra1 Qhh3 B1h2 Qhg4 Kg1 Nh3+ Kh1 Qd5 Rg1 Qb3 Nb5+
N2BK3/4N1q1/1Q1B4/P1Rq1BB1/4rB2/2b3rP/nq1R3n/1nNqNRk1 b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 g4 f5 e4 h5 gxh5 b4 exf5 Kf7 c4 Ba6 cxd5 Bb5 axb5 Ke8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 g5 Ke6 Kd4 Kf7 c5 f4 e5 f6 e4 b6 c4 h3 g4 d6 g3 f5 g2 d7 e3 h6 b3 h7 e2 b7 e1Q Nf3+ Ke4 d4 g1Q d5 c3 d6 c2 Bd3+ Kd5 Nbd2 b2 Nb3 b1N Bg5 Qgf2 Rf1 Ra7 Nc1 Qb4 Ne1 Qc8 d8B Kd4 d7 Qc7 Ke8 Qg2 f7 Bg7 f8B Na6 b8B Nh6 f6 Ng4 f7 Rg8 h8N Qb2 Ng6 Nh2 Ne7 Nb4 Bf5+ Qd2 Qe2 Na2 Qe6 Ra6 Qh6 Re6 Qg6 Qcb7 Bbf4 Re4 Qh6 Qdc3 Qb6+ Qc5 Bdc7 Qd5 d8R Bh8 Rc8 Qe5 Bd8 Qg7 Qh6 Qd5 Rc5 Nb4 Qb6 Na2 Ncd3 c1Q Rf2 Qd1 Nc1 Nb4 Ra2 Qa3 Rae2 Na2 Rf1 Qb2 Bb8 Rf4 Rd2+ Ke3 Be5 Qh7 Bb8 Bc3 Bd6 Rg6 Bfh6 Qh8+ f8N Qg7 Bf6 Rg5 Ne6 Rc4 Nc7 Re4 Rf4 Rg4 Bfg5 Rg3 Na8 Rf3 Rd3+ Kf2 Rd4 Kg1 Rd2 Rg3 Rff2 Rd3 Bgf4 Rde3 Bhg5 Rg3 Rf1+
K2N2NB/2qNnBr1/1kBPr3/3bQ3/1BR3P1/R7/3B1B1n/Q3qrrq b - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 cxd5 b5 exf5 b4 h4 b3 hxg5 Bg7 axb3 Bf6 b4 Be5 b5 Bg3 fxg3 Bb7 Ke2 Ba6 Ke1 Bc8 Kf2 Kd7 Kf3 c5 Ke4 Kc7 b4 e5 d4 a5 f6 h5 f7 a4 f8B h4 g6 c4 d6+ Kb7 Kd5 h3 d7 e4 g7 a3 g5 h2 g6 c3 b6 c2 g4 e3 b5 e2 Nd2 e1R Ne4 a2 Ne2 Rh4 Nf4 Rh6 Bd2 c1Q Ne6 Ra6 Bfb4 Qf6 d8B Bd7 Bg2 Re2 N4c5+ Ka8 b7+ Ka7 Rg1 Qf8 Bh4 h1R Nd8 Qf1 Bf2 Nc6 b8B+ Kb6 Be5 Ka7 b6+ Ka8 b7+ Ka7 Kd6 Qc2 Kc7 Nge7 g8B Be6 d5 Rh7 g7 Nd4 Bf7 Nf3 g8N Qe1 Bh8 Rg7 d6 Nh2 Bc6 Ra4 Rg3 Re4 Rc1 a1Q Ra3 Bd5 Qe2 Re6 Qe5 Qh7 Rc4 Qab1 Qa1 Rg1 Qe5 Qbe4 Qa1 Qh1 Qe5 Ng6 Kc8 Kb6 Kb8 Ra5 Qa1 Rb5 Ka8 Ne7 Na4+ Ka6 b8Q Rb7 Nc5+ Kb6 Qc8 Rd7 Ndb7 Rd8 Qe5 Rf8 Nd8 Reg6 Qcf5 Re6 Qb1 Qc2 Qba1 Qc3 Be8 Rff6 Bf7 Qc2 Bg3 Rff1 Bf2 Qh7 Bh6 Nf5 Bh5 Rg5 Be8 Qc7 Bf7 Rg7 Bhd2 Ne7 Nd7#
2nN2BN/1P6/R2RPn1r/NR3K2/k1q3n1/1b1BQB2/2R1q1r1/q1B3qR b - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Qf6 f4 Bh6 fxe5 Bg5 hxg5 Qd8 Kf2 Kd7 Kg3 h5 Kf4 a5 e4 c5 b4 c4 d4 a4 e6+ Kc7 b6+ Kd6 e7 g3 e8B a3 e5+ Ke7 b5 a2 d6+ Kf8 g6 c3 b7 g2 f6 h4 b6 c2 f7 h3 e6 h2 d7 Ke7 f8R Kd6 g7 Kc6 d5+ Kc5 d6 Kb4 Qf3 Nh6 g8B Nc6 b8R Ra6 Bh5 Na7 Bd3 Bb7 Nd2 Ng4 Nc4 Nc8 Na5 Bd5 Ne2 g1Q Qe3 Ka4 Kf5 Nf6 Bf3 Bb3 Nf4 Rh6 Ng6 Qc7 d8N Qc4 d7 Ra7 Rb1 a1Q b7 Qd1 Rf7 Qe2 Nh8 Ra6 Ra8 Ra7 Rd1 h1N Re7 Nf2 Rh1 N2g4 Rb2 Ba2 Rb5 Bb3 Rg7 Ra6 Rg5 Rd6 Ra6 Rb6 Rgh5 Rc6 R5h2 Rc7 Bb2 c1Q Ba3 Qg1 Bc1 Qef1 Rc2 Qe2 Ndf7 Rc6 d8R Rc7 Rdd6 Re7 Nd8 Rg7 Bc6 Nf2 Rh3 Rg2 Rh1 N2g4 Bf3
bBNbNn2/P1rQkr2/R2q1R2/1P1Q4/1Q1Q1bBb/4NQb1/2b5/K2Q4 b - - 0 1 illegal: No possible last move
1bB5/6B1/1Nn2n1q/2nNnB2/B2qQn1B/2P2RK1/4qNRP/r1B1k1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
B2nrr1B/1nn4q/R3BnN1/2P1R3/K5Nk/QB3PRN/N1rB4/qn6 b - - 0 1 legal: proof: e4 g5 a4 c5 d4 b5 dxc5 f5 axb5 g4 exf5 Bh6 g3 Bf4 gxf4 g3 h3 Bb7 Qd3 Bf3 Qd1 Bg4 hxg4 Qc8 Ra2 Qc7 Ra1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 e5 c4 h5 b6 a5+ Ka4 d5 b4 e4 g5+ Ke7 b5 e3 b7 h4 g6 Kf6 c6 h3 c5 g2 b6 d4 g7 d3 c7 h2 c8B e2 Bd2 e1Q Be6 Rh7 Nc3 Qc7 Nh3 g1N Qc1 Ne2 Na2 Rh8 Qa3 Nd4 Bg2 Na6 b8N Nc6 b7 Nd8 Rg1 h1R Nc6 Rh2 b8B Qf7 Ne5 Nc7 Bgd5 Qh5 f3 Qh7 Rg3 Qb1 Bc1 Rc2 Bd2 Qb2 Re1 Qa1 Bb3 Nh6 g8B Ng4 Bgf7 Re8 Bed5 Rf8 Bfe6 Re8 Ba7 Rc8 Ba8 Rf8 Bb8 Re8 Bc1 d2 Re3 d1N Bd2 Ndf2 Re2 Ne4 Re3 Nd6 Re2 Kg7 f6+ Kh6 f7 Kh5 f8N Kh4 f5 Nf6 Ng4 N6b7 Re5 Na6 Kb5 a4 Bd6 Nc7+ Kb4 Ne4 f6 Rb8 f7 Nf6 Qb2 a3 Ka4 Na6 Bc7 Rc8 Bca5 Nc7 Bac3 Rb8 Nb4 a2 Qa3 Qb2 Bd4 a1N Na2 Rc8 Nd7 Rb8 f8R Qb1 Rg8 Rf8 Rg6 Qd1 Bbc4 Nb3 Bcd5 Re8 Nf8 Qa1 B4c3 Nd4 Bb3 Ne2 Bh6 Rc8 Bg7 Rb8 Bd2 Rc8 Bh8 Nc3+ Kb4 Nb1 Ka4 Nh5 Bf7 Rb8 Ra6 Nf6 Bfe6 Re7 Nh6 Nc6 Ra5 Rf7 Ra6 Re8 Ng4 Ncd8 Bf5 Kh5 Ng6 Rff8 Ne7 Kh4 Bd7 Ncd5 Be6 Nc7 Ng6+
2r1R3/1qRQ2QK/n5rB/rBrR1n2/1N2PR2/r3kP1N/4r3/RR3nQ1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 h4 b5 a4 e5 axb5 Be7 f3 Bg4 f4 f5 fxe5 f4 Qa4 f3 Kd1 f2 Kc2 Bf3 gxf3 g4 Qb3 Bg5 hxg5 Na6 Kd3 Qd6 Qd1 Qd8 Kc2 Nb8 Kd3 Kf7 Ke4 Kg6 d4 c5 b4 a5 e6 h5 b6 a4 d6 a3 b5 h4 b7 h3 d5 h2 e7 a2 e8R c4 d7 c3 b6 c2 d6 g3 Nh3 g2 Nc3 g1N Nd5 Rh5 Nb4 Na6 b8R Ne7 b7 Qc8 d8R Rh8 d7 Nf5 e3 Ra7 Bb5 Ne2 Qg1 f1R Ra8 Rh6 b8R Re1 Rb7 Neg3+ Kf4 Qc6 e4 Nf1 Rc7 Qb7 Rac8 Kh5 g6 Re2 g7 Rg6 g8Q Kh6 Be3 c1R Qg7+ Kh5 Rb1 a1R Ke5 Rcc6 Bh6 Ra3 Rf8 Rcc2 Rde8 Rcc6 d8Q Rc5+ Kf4 Ra8 Qdd7 Kh4 Rcd8 Rc8 Qde7+ Kh5 Rd5 Ra5 Qd7 Ra3 Q1d4 Ra5 Rg1 h1R Ra1 Rhh2 Rh1 Rea2 Qg1 R2a3 Ke5 Re2 Rf7 Rg4 Kf6 Rgg2 Rff8 Rg6+ Kf7 Kh4 Kg8 Kh5 Kh7 Kh4 Q1d4 Kg3 Rf6 Nd6 Rf4 Nf5 Qd1 Kg2 Ng5 Kf2 Nh3+ Ke3 Qe1 Nd2 Qg3 Nf1 Qg4 Nd2 Rhb1 Nf1 Qg1+
1N1Bb2K/B3R2B/1n4P1/2BB4/5N1r/R1BpbqQ1/2brQ2P/1Qnn1k2 b - - 0 1 illegal: No possible last move
3N1B2/1b3P2/1n3r2/bK1NrQ2/1BB1r1R1/q1N4R/pP2N1b1/RNk2B1n b - - 0 1 legal: proof: e4 d5 a4 b5 axb5 f5 exf5 g5 c4 c6 bxc6 g4 cxd5 g3 hxg3 Qa5 g4 Qc7 g5 Qd8 Ke2 Kf7 Kd3 a5 Kc4 h5 g4 e5 f4 a4 d4 e4 d6 e3 d7 a3 f6 Ke6 c7 a2 f7 h4 g6 e2 d5+ Kf6 g5+ Kf5 d6 Ke4 f5 e1R g7 h3 g6 h2 f6 Nc6 Qh5 Nge7 g8R Nd5 g7 Re3 Kb5 Nb6 Bd2 Ra6 Bb4 Ne7 Ne2 Kd3 Nec3+ Kc2 Qg4 Kc1 Qf5 Bb7 c8N Qc7 d8N Rh5 d7 Re4 Nc6 Qg3 d8N Qf3 Nd4 Qh3 Qc5 Nf5 Ne7 Ng3 Ned5 Rhe5 Qc8 Bd6 f8B Bb8 Qf5 Bc7 Rg1 h1B Rh8 Bg2 g8B Nh1 Bf7 Bf3 Rg4 Bg2 Be6 Qe3 f7 Qf3 Nd1 Qa3 Ndc3 Na8 Rh3 Ba5 Bd7 Rf6 Bc8 Re7 Be6 Nb6 Nde2+ Kc2 Ndf4 Re8 Bc4 Re5+ Ncd5 Kd1 Nec3+ Kc1 Nfe2+
1QKn2bn/q1N1Q1r1/1b1B1p1R/r1BB4/2kB3B/5q2/2PQ1Pq1/1R2N2B b - - 0 1 legal: proof: d4 d5 a4 b5 axb5 h5 g4 e5 gxh5 c5 dxe5 c4 b3 Bc5 bxc4 Bh3 cxd5 Bf8 d6 Bc8 Kd2 Kd7 Kd3 Ke6 Ke4 g5 h4 a5 b6 g4 b7 g3 h6 a4 h5 a3 h7 a2 h6 g2 d7 Qg5 d8B Qh5 Na3 Nd7 b8Q Bb4 Bf4 Qh3 Qd2 Be7 Rb1 a1Q Nb5 Ra6 Nf3 g1Q Ne1 Bb4 Bg2 Ne7 e3 Rg8 h8B Rd6 h7 Qg4 Rh6+ Ng6 Bh4 Qd1 Bh1 Qg5 Nc7+ Ke7 e6 Rd5 Bd4 Rb5 Bc5+ Kf6 e7 Rg7 e8B Nf8 Bh2 Qa7 Bhd6 Ba5 Bc6 Be6 Bd5 Bb6 Kd4 Ra5 e4 Qf3 e5+ Kf5 Kc4 Qgg2 h8B Rg8 Bg7 Nh8 Bgf6 Rg7 Kd4 Bd7 e6 Be8 e7 Ne6+ Kc4 Nd8 Kb4 Bd7 e8Q Be6 Ba1 f6 Qe7 Bg8 Bc3 Ra3 Kb5 Ra2 Be6+ Ke4 B3d4 Ndf7 Kc6 Ra5 Kd7 Nd8 Kc8 Rb5 Na6 Ra5 Bh3+ Kd5 Nc7+ Kc4 Bd7 Qf1 Bc6 Q1g2 Bd5+
nbN3n1/3r1R1P/1Q1r2N1/K1b2R1p/4P1kQ/R2BB2N/3N1q2/NqN4r b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 h4 b3 axb3 Nf6 b4 Ng8 b5 Bf5 Rh2 Be6 Rh1 Bc8 g4 g5 hxg5 h6 g6 Qe7 g5 Bf5 g7 Bh7 g6 Qg5 gxh7 Qd8 e4 Ke7 b4 a5 d4 c5 Kd2 f5 Kc3 h5 d6+ Ke6 d7 a4 d5+ Kf7 e6+ Kf6 d6 c4 e7 f4 e8N+ Kg5 b6 a3 b5 a2 Kb4 c3 b7 c2 b6 Nf6 g8N Qe7 d8Q Ra5 Be3 c1B Ne2 Rf5 Qb3 Qe5 Ne7 Qb2 d7 Bg7 Nd6 Re8 Nd2 Bh8 Ndc8 Rc5 Ng6 Rc4+ Ka5 Na6 b8R Qb1 b7 Rc6 Qbb6 Ba3 Nc1 Bc5 Bd3 Rd6 Rf1 Kg4 Qe7 f3 d8N f2 Ne6 Red8 Nef4 Bg7 Nh3 Ng8 Ra8 Be5 b8N R8d7 Nc6 Bf4 Ra7 Nc7 Nd4 Na8 N4b3 Be5 Rh1 f1R Rc7 Rd1 Rf1 Qc2 Rf5 Rh1 Nf3 Qf2 Nfd2 Rd4 Rb7 Bb8 Qed8 R7d6 Rbf7 R4d5 Rb1 Rd7 Na1 Rd4 Rb3 R4d6 Nc2 a1Q+ Ra3 Qa2 Na1 Qb1 Qh4+
3Nrb2/K2pN2k/4Bq2/2Nb1QN1/b1P1QB1P/r2N2NR/3nn1B1/5R1q b - - 0 1 illegal: No possible last move
rR3nk1/r2B1Rb1/q6R/R6N/1BNp2Q1/1K2R3/QQ2RP1P/q1r1n1n1 b - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Na6 b4 Nb8 b5 Ba6 Bg2 Bb7 Bf1 Bc8 b6 a5 b3 h5 gxh5 a4 Bb5 a3 Bf1 Ba6 Qd4 Bb5 Qd1 Ba4 bxa4 Qc8 Ke2 Qc7 Ke1 Qd8 Kd2 Kf7 Kc3 g5 b7 e5 h6 d5 h7 d4+ Kb3 a2 c4 e4 a5 e3 f6 e2 a6 e1N c6 g4 a7 g3 c5 g2 c7 Qe7 c8R Qc7 c6 Qd6 c7 Nh6 Qc2 Qc6 Nh3 g1R Na3 Rg5 Bb5 Qe4 Bd7 Rg1 Qb2 Rg4 Re8 Qc6 c8Q Ng8 Re3 Qe4 Nf4 Rg7 Bd2 Nc6 b8R Qg6 Bb4 Ne5 Nh5 N5f3 Nc4 Ne7 Re2 Rhg8 h8R Ng1 Rh6 Rh7 Re3 Bg7 Re2 Rd8 Re3 Kg8 f7+ Kh8 Re2 Qa6 Re3 Rg8 f8R Ng6 Rf7 Rd8 Re2 Kg8 Re3 Nf8 Re2 Ngf3 Rg1 Re8 Rg3 Ng1 Rge3 Rd8 Bc6 Rd5 Qg4 Rc5 Bd7 Rc8 Rb1 a1Q Rb5 Rab8 a8Q Rc5 Ra5 Rc7 Qc6 Ra8 Qa4 Rca7 Qaa2 Rh8 Rb6 Rh6 Rb8 Rc6 Rc1 Rcc7 Rcc3 Rc8 Re6 Rc6 Rce3 Rc5 Rh6 Rc6 Na3 Rc1 Nc4
5q2/r3P1PR/2N3r1/1q3QQ1/1b1K1Qp1/2N1N1Nb/2qRb3/1Bn1BNNk b - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Nc6 f4 Nd4 fxe5 Ne6 Nf3 Ke7 Ng1 Ng5 hxg5 Ke8 Kf2 Kf7 Ke3 a5 d4 c5 b4 h5 d6 a4 d5 c4 e6+ Kg7 b6 h4 e7 h3 e8N+ Kh7 f6 Kg6 f7 Kf5 b5 h2 d7 c3 b7 c2 b8Q a3 b6 a2 b7 Bd6 f8N Rh5 g6 Bf4+ Kd4 Bh6 g7 Rg5 d6 Ra7 Nc3 Ra3 Nh7 Ra6 e4+ Kg6 e5 Kh5 e6 Kh4 Nef6 Kg3 Nfe4+ Kh4 Bd2 c1Q Ng3 Raa5 Qf3 Ra6 Qf5 Ra7 Nf6 Qf8 d8N Qc2 d7 Rg6 Qbf4 Ne7 b8N Nd5 Na6 Nb4 Nc5 Ba6 Nb3 Nd3 Nfd5 Nc1 Ne3 Be2 Nc6 Bg5 d8Q Be7 Rb1 a1Q Rb2 Qa6 Be1 Qb5 Qdd5 Bb4 e7 Bd1 Bd3 Be2 Nf3+ Kh3 Nbd2 Ra5 Ndf1 Ra7 Nc4 Kg2 Q5g5 Qb3 Bb1 Qc2 Nce3+ Kh3 Rg1 h1B Qdf5 Bg2 N3h2 Qb3 Rd2 Qc2 Rh1 Be4 Ned1 Kg2 Nf3 Bd5 Rh7 Be4 Nh5 Kh1 Ng1 Bg2 Nde3 Bh3 Nhg3+
1b5r/1P1RqNNR/Q2R2BK/6R1/rP1qb3/N7/nRp2b2/B1kqN1B1 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Kf2 Kd7 Kf3 Kd6 Kf4 Kc5 d4+ Kb4 f6 a5 d6 c5 d7 h5 f7 e6 b6 a4 d5 a3 b7 c4 d6 a2 Qe2 Kb3 Nf3 c3 Na3 c2 Qa6 h4 Be3 h3 Bg1 h2 Bd3 Ne7 g8R Bg7 f8N Bc3 g7 Rh6 g6 e5+ Kg5 e4 Rb1 a1B Ne1 e3 Ne6 Qb6 d8B e2 d7 Nd5 Bf6 Nb4 d8N Bd4 Nf7 Rh8 Rd8 Bf2 g8R Na2 g7 Qd4 Rd6 Bd7 Bf5 Bc6 Bg6 Be4 Rgd8 Ra7 g8R Ra8 Ng2 e1Q Ng7 Qeb4 R6d7 Qe7 Ne1 Ra7 Qe2 Ra4 Qa6 Kb4 b3 Kc3 b4 Kd2 Rd6 Bc3 Rb2 Kc1 R8d7 Qc5+ Nf5 Be5 Rg7 Qd5 Rh7 Qd3 Ng7 Qd4 Kh6 Beg3 Rd5 Bb8 R5d6 Bg3 Bf2 Bh4 Rg1 h1Q Rg5 Qf3 Be5 Qfd1 Bg1 Bf2 Rb3 Qa7 Ba1 Qad4 Rb2
n2N2QK/PNN1B1B1/1bR1p2R/3B1B1b/1r2b3/N1r3P1/5n2/N1k1r1nR b - - 0 1 legal: proof: g4 d5 e4 g5 c4 f5 cxd5 a5 exf5 a4 h4 a3 hxg5 Bd7 bxa3 Be6 a4 Qd6 a5 Qg3 fxg3 Bc8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 a4 c5 d4 h5 a6 b5 a7 c4 f6 c3 a5 c2 d6 Kb3 d5 h4 a6 h3 d7 h2 d8N b4 d6 Bh6 f7 Be6 f8B Bf7 d7 Bh5 g6 Rh7 g5 Rh8 g7 Be2 g6 Bd3 Bg5 Kb2 Nf3 c1N Nd4 b3 Bh3 Bc2 Bf5 Be4 Nb7 Nf6 d8N Ne2 g8R Ng1 g7 Nbd7+ Ke6 Rb8 Kf7 Bf3 a8N Nb6 a7 Ng4 Nc7 Nf2 Na3 Na8 Rc1 Bg4 Bh4 Be3 Ndc2 Bb6 Qd5 Rh7 Rh8 Bh5+ Kg8 Rh6 Be4 Rc6 Rh6 Rc4 Qf7 Rc3 Kh8 e6 g8B Nd1 Na1 Nf2 Nd6 Rb7 Bg7 Rb8 Bgh7 Rb7 Re1 Rb8 Re3 Kc1 Be7 b2 Bd5 b1B Qg8 Be4 Rd3 Bd4 Rf3 Rb4 Bf5 Bb6 N6b7 Nd1 Rf4 Bc2 Rc4 Be4 Qh7 Nf3 Rg1 h1R Rf1 Rg1 Qg8 Rh1 Rf2 Re1 Rh2 Ng1 Rc6 Nf2 Rh1
B4brB/K1Q1N1P1/Q2QQn1r/5N2/2Q1R2r/1n1R1pBP/3qrk2/2Q3r1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 gxh5 g5 c4 d5 cxd5 Nc6 a4 Bf5 axb5 Bg6 hxg6 Nb8 Kf2 Kd7 Ke3 a5 Kd4 f5 e4 c6 b4 a4 d6 Ke6 Kc5 a3 d4 a2 h3 f4 d5+ Kd7 e6+ Kc8 e7 Kd7 e8Q+ Kc8 e5 Kb7 e6 g4 e7 g3 b6 g2 d7 Qc8 d8Q Ra4 b5 Bh6 d6 Ra7 d7 Ra5 Qc7+ Ka8 d8Q Qb7 Q8d4 Ra4 Bb2 Ra5 Qc1 Nf6 Ne2 g1R Nbc3 Ra4 Bg2 Rg8 Qec8 Bf8 Ng3 Rb4 Rb1 a1R Qc4 Ra2 Nd5 Rba4 Bc3 Re2 Rb3 Qa6 b7+ Ka7 Rh2 Qa5 Nf5 Rb4 Be4 f3 Bd4 Ra4 Rd3 Qd2 Rg2 Ra6 Rg4 Rb6 Rf4 Rg4 Qd6 Rh4 e8Q Ra6 Bb2 Rb6 Nde7 Nbd7+ Kd4 Ra6 b8B+ Kb6 Qef7 Nc5 Qfe6 Rgh8 Bd5 Rg8 Re4 Nb3+ Ke5 Ka5 b6 c5 b7 Rb6 Bd4 Rc6 Qa6+ Kb4 Qdc7 c4 Ba1 Nc5 Kd4 c3 Qcd6 c2 Bc7 Rb6 b8Q Rh6 Ba8 Rh4 Qba7 Rc6 Bb8 Rb6 Qac7 Rc6 Qd1 c1R Qc2 Rh1 Qc1 Rg1 Qde5 Rf2 Qca7 Nh7 Qed7 Rf6 Qee6 Re2 Bg3 Nb3+ Kd5+ Nd4 Bc3+ Kb3 Qed6 Re6 Kc5 Rf6 Kb6 Re6 Qca3+ Kc2 Qcc4 Kd1 Qac7 Nb3 Bh8 Rf6 g7 Rfh6 Q7e6 Nf6 Bf4 Ke1 Qac1+ Kf2 Ka7 Rgg6 Bh2 Rg1 Bg3+
1N5k/Rn2Pb2/2rq1nR1/2B1Pr2/K1R1BB2/2BpR3/R4nnN/Q4rN1 b - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 b4 gxf5 b3 axb3 g4 b4 Be7 b5 Bg5 hxg5 Qf6 Nf3 Qb6 Ng1 Qd8 Kd2 Kf7 Kc3 Kg7 Kb4 a5+ Ka4 h5 e4 d5 b4 g3 c4 g2 e6 h4 e7 d4 c6 d3 b6 h3 b5 h2 g6 Rh3 f6+ Kh8 g7+ Kh7 c7 Na6 f7 Rf3 f8B Rf5 c5 Rf7 b7 Rf5 b8B Ra7 b6 Rf4 b7 Nb4 Ra2 Nc2 Bb2 Ne1 Bc3 Nf6 g8R Be6 c8R Qd6 Re8 Ra8 Nd2 Ra6 Qa1 Bf7 Ndf3 Rc6 Rg6 Kh8 Bc7 Rf5 b8N Qd7 Bf4 Qd6 Ne2 g1N Bg2 Nh3 Rf1 h1R Neg1 Nf2 Nh2 Ng4 Bf3 Ng2 Re1 Nf2 Re3 Rh5 Rd8 Re5 Rd7 Rf5 Ka3 a4 Ra7 Ng4 Kb4 a3 Ka4 Nf2 e5 Qd7 B8h6 Qd8 Be4 Qd6 Nh3 Rf1 Ng1 Rc8 c6 Rc7 Rb2 Rc8 c7 a2 Qc1 a1N Ra2 Nb3 Qa1 Na5 Bhg5 Rg8 c8R Nb7 Rc4 Rc8 Bh4 Rc6 Bhg3 Nh1 Bge1 Nf2 Bb4 Be6 Bc5 Bf7 Bc3
b1R2n1b/1PN5/n2bnNN1/2RNbB2/QB1N4/1R3R2/2B2KPp/kq1r4 b - - 0 1 legal: proof: h4 b5 e4 d5 f4 a5 c4 f5 cxd5 g5 a4 Ba6 axb5 Bg7 h5 Bf8 exf5 Bc8 fxg5 Ra7 Rh4 Ra6 Rh1 Rg6 hxg6 Bh6 Ra3 Bg7 Ra1 Bf8 d4 Kd7 b4 Kd6 b6 h5 f6 e5 b7 c5 b5 c4 g7 a4 g6 c3 b6 e4 f7 e3 Ba3+ Kd7 d6 Kc6 d7 Kd5 Nf3 e2 Kf2 Kc4 d5 c2 d6 Kb3 Bb4 Kb2 Rh3 e1N Nd4 c1B Nc3 a3 Nd5 a2 Rf3 h4 Qa4 h3 Bd3 h2 Bc2 Ne7 g8N Na6 b8R Bf4 g7 Be5 Rc1 a1B Ngf6 Bb7 g8B Ba8 Bgh7 Ng6 b7 Qc8 d8N Qf5 d7 Bfd6 N8e6 Rd8 Rc8 Nf8 Nec7 Qe4 Bf5 Nd3+ Kf1 Ndc5 Kf2 Re8 d8R Nce6 Rd7 Rd8 Re7 Qd3 Rd7 Qb3 Re7 Qa2 Rd7 Qb1 Re7 Nh7 f8N Rd7 Ng6 Nhf8 Qb5 Ka2 Rh7 Bc3 Rhh3 Ka1 Rhg3 Bd2 Rb3 Bh6 Rgf3 Bg7 Bd1 Bh8 Rc5 Rh7 Bdc2 Rh3 Rf4 Rd3 Rf3 Rd1 Qa4+
BQ1R2Q1/6B1/2R1KPqn/1RNPR3/1bq3k1/Nn1rR1p1/rq2q3/Q5R1 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b6 h5 gxh5 a5 b3 a4 Bc4 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Ra5 Qf3 Ra6 Qd1 Ra8 Ke2 Kd7 Ke3 g5 Ke4 c5 Ke5 c4 h4 c3 d4 a2 f4 g4 d6 c2 a5 e6 b7 g3 f6 Bg7 a6 Qe8 h6 Ra7 h5 Ra8 a7 Qe7 h7 Bh6 f5 Na6 b8R Qf8 f7 Nc7 f6 Qd8 f8Q Qc8 Nh3 Bd2 h6 Na6 Nf4 Be3 Na3 Ne7 Rb5 Nf5 Qg8 Qe8 Rg1 Nc5 Bg2 Nb3 Nd3 Qg6 Be4 Rd8 a8Q Bd2 Qb8 Bb4 Rb1 a1Q Ba8 Qc3 Be3 Qc4 Rc1 Qg4 Qf1 Qg6 Re1 c1Q Bg5 Qd2 Re3 Qdc2 Qa1 Qg2 Qf8 Rg8 h8R Qb2 h7 Rg7 Rg8 Nh6 h8R Re7 Qg7 Rf7 Re8 Re7 Qg8 Rg7 Kf4 e5+ Kf3 e4+ Kf4 Rh7 Ree5 Rg7 Rec5 Rf7 Ke5 Rh7 Rc6 Rg7 Rf3 e3 Rh7 e2 Re3 e1Q Rh8 Nf5 Rh5 Qee2 Bh6 Rh7 Rg5 Rh8 Bg7 Rh2 Qh7 Nh6 Nc5+ Ke8 d7+ Kf7 Rf5 Qgh5 Qh8 Kg6 Qf8 Qg5 Qh8 Kh5 Qg8 Kg4 Kd6 Qg6 Rfe5 Qf3 Ke7 Rd2 Kd6 Qfe2 d5 Rd3 Ke7 Rc8 d8R Rc7+ Ke6 Ra7 Nc2 Ra2 Na3
3RK1k1/Bq1Bn1Q1/1qqpP3/2B5/R1NBN3/2P1Qr1Q/1B4qn/1rb4B b - - 0 1 legal: proof: d4 c5 dxc5 g5 g4 b5 f4 e5 fxe5 f5 gxf5 g4 a4 g3 axb5 Bb7 h3 Be4 Ra5 Bf3 Ra1 Bg4 hxg4 Bg7 Ra3 Bh6 Ra1 Bf8 Kd2 Kf7 Kc3 h5 Kd4 a5 Kd5 g2 e4 a4 b4 h4 b6 a3 f6 h3 g5 h2 c6 a2 g6+ Ke8 b5 Na6 f7+ Ke7 c3 Rb8 b7 Rh7 g7 Qb6 e6 Nc5 e5 Rh4 c7 Ne4 c8B Nc5 Qf3 Qa7 b6 Qa4 Nd2 Rh6 Nh3 g1Q Bg2 Nb3 Nc4 Qa6 Bb2 Rf6 Nf2 Qf1 Qh3 Rf5 Ne4 Qf3 Rhd1 Qe3 Bh1 Nh6 g8Q Ng4 Qg7 Na5 Rd4 Rf3 Kc5 Ra8 b8B Qb7 Ba7 Nc6 Rd1 a1Q Kb5 Qc7 b7 Qa2 b8B Qb7+ Bb6 Ra4 Ba7 Rb4+ Kc5 Qg1 Ra1 Qaa6 Ra4 Qg2 Rd1 Rb3 Kd5 Rb4 Bd4 Qab6 Rd3 Kd8 Rd2 Bc5 f8B Ke8 e7 Rb3 Bf2 Be3 Kd6 Bg5 Rd5 Bc1 Bd4 Rb4 Qgh6 Kf7 e8Q+ Kg8 e6 Rf4 Qe7 Rf3 Qe3 Rb5 Ba1 Rb1 Bb2 Qb3 Qf6 Ne7 Qe5 Qa8 Kc7 Qc6+ Kd8 Qbb7 Ke8 Qg1 Bg2 h1Q Qf6 Qhh2 Bh1 Qhg2 Qe5 Nh2 Qc7 Nf5 Bfc5 Ne7 Rf5 d6+ Bd7 Rf4 Rh5 Rf6 Rh8+ Kg7 Bb4 Qca6 Kd8 Qd2 Qf4 Qd3 Bb5 Qe2 Be3 Qeg2 Kd7 Ng6 Rd8 Rf7+ Ke8 Kg8 Qe7 Q1f2 Bd7 Qac6 Beb6 Qd4 Qfe3 Rf3 Q7g5 Qdc5 Qgg3 Qa5 Bd4 Qab6 Qe5 Ne7 Bbc5 Q6a6 Qf6 Qab6 Qg7+
qRN2B2/2NB2pP/2N1Br1B/B2q3P/2b2q2/q5b1/2KQnrB1/kR1Q4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 f5 e4 c5 b4 a5 h4 f4 b6 a4 h6 f3 h5 a3 e6 Kd6 b7 f2 e5+ Kc7 h7 Kb6 d6 a2 d7 c4 d5 Kb5 d6 Qg5+ Kc2 Ka4 d8Q c3 b5 Nd7 b8N Ngf6 b6 Qf4 b7 Qg3 e7 Qf4 e8B Nd5 e6 Qf6 e7 Ra6 Na3 Qe6 Nc4 Nf4 Bf7 Nf6 d7 N6d5 e8B Bd6 Nc6 Rf8 b8B Ne2 Bh6 Bg3 Rc1 a1Q Nb6+ Ka3 Bg2 Ka2 Nh3 f1Q Bd6 Qf4 Ng5 Qee5 Be6 Rf5 Kd3 c2 Bf8 Bb7 Rb1 c1Q Nc8 Qa3+ Kc2 Qed4 Rb3 Ndc3 Qd2 Rb6 Rc1 Qd5 Rb5 Ra6 Qd1 Ba8 Rb8 Nb1 Qa5 Bb7 d8B Rb6 Qb4 Ba6 Qbd2 Bc4 B8d7 Rf6 Bc7 Rb3 Ba5 Rf3 Bf7 Rf2 Ne6 Qae5 Bg8 Ka1 Nc7 Qee3 Bf7 Qa7 Bfe6 Qa8 Rcxb1+
1b1N2q1/2N2P2/8/r1NBRBp1/R1r1q1rQ/Pr1R4/2nK4/BbR1B1Bk b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 d5 cxd5 c5 exf5 c4 d4 Na6 b4 Qd6 bxa5 Nc5 dxc5 Qd8 f4 Kf7 h4 Kf6 d6 b5 a6 g5 h6 e5 d7 e4 a3 b4 a7 c3 h7 b3 c6 b2 h5 c2 c7 e3 h6 e2 Nc3 b1R Nb5 Qe8 d8N Bd7 c8B Bd6 Kd2 e1R Qg4 Qf7 Nc7 Rb5 Bc4 Ne7 Qh4 Be5 Nf3 Rb1 Nd4 Bd6 N4e6 Rb7 Nc5 Re4 Rh3 Rd4+ Rd3 Qg6 Bd5 Qg8 Bb2 Ba4 Bc3 Rb3 Rc1 Nc6 Bd7 Rc8 a8R Nb4 Ba1 Bb5 Ra4 Ra8 B7e6 Ra5 Bc3 Be5 Bd7 Rc4 Bc8 Ke7 f6+ Kd6 f5 Be8 Bd7 Bg6 f7 Bh2 f8R Bg3 Rd4 Ke5 f6 Be4 Bg4 Kf4 Bf5+ Kf3 f7 Kg2 Rd3 Be5 Bd4 Bh2 Bg1 Kh1 Qf2 Bg3 Re8 Bh2 Re5 Bg3 Rb1 Bh2 Qh4 c1Q+ Ke2 Qc3 Rc1 Qd4 Kd2 Nc2 Bh3 Qg7 Bf5 Re8 h8B Qg8 h7 Re6 Qe1 Rh6 Bf6 Rh4 h8B Rf4 Qh4 Rg4 Re6 Qe5 Re8 Qe6 Ba1 Qe7 Bhc3 Qe6 Rf3 Bd3 Re3+ Qe4 Re5 Qg6 Nb5 Be2 Re6 Nd4 Ke1 Bd3 Kd1 Qg7 Be1 Bb1 Kd2 Qg8 Rd3 Nc2 Re8 Kg2 Re7 Bc7 Re5 Bb8 Qf2+ Kh1 Nc7 Ra6 Qg3 Ra5 Qh4+
K3bN2/B2P1p2/RQNq2Rk/1B1n1q2/3R4/2B1P1NB/N2nrn1N/5nr1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Bb6 Bh3 Ba6 Bf1 Ba5 bxa5 Bc8 Kf2 Kf8 Ke3 c5 Ke4 g5 h4 Kg7 d4 c4 b6 a3 b7 c3 h6+ Kh7 d6 a2 Kd5 g4 e6 g3 e7 c2 e8N g2 a6 Bf5 a7 Nd7 Kc6 Nb6 b8N Na4 Kb7 Be4+ d5 Nb6 h5 Qg5 d7 Nc4 d8R Nb6 Nd6 Qe3 Nc6 Qd3 Nc3 Nc8 Nf5 Qg3 d6 Qd3 Nf3 g1Q Ng3 Qd5 Be3 c1N Bh3 Nge7 Nh2 Bg6 Qb3 Be4 Qb6 Qf2 Rg1 Nb3 Bd4 Rg8 e3 Nd2 Bc5 Kh8 h7 Kg7 h8N Qff5 Ng6 Nf1 Nf8 Kh6 Bd4 Bd3 Rd7 Bb5 Rg2 Kg5 h6 Qde5 h7 Nd5 h8B Kh6 Rd1 a1N Na2 Nb3 Ra1 Nbd2 Bc5 Qee6 Bc3 Nf6 B5d4 Ne7 Rg1 Rc8 a8B Nfe4 Ka7 Qee5 Bb7 Rg6 Ba6 Nd5 Rd8 Ba4 Bb5 Nf2 Kb7 Rc7+ Ka8 Rg4 Na5 Rc4 Nc6 Rb4 Rd7 Rb2 Ne4 Nb3 Nab4 Re2 Qa7 Qh8 Bd3 Rc2 Na5 Ne7 Ra2 Rf4 Rg6+ Kh5 Qb7 Re2 Ba7 Qd4 Qb6 Rg4 Rd8 Be8 Bb5 Qdf6 Nac6 Nbd2 Ra6 Rg1 Na2 Q6e6 Rg5+ Kh6 Ng3 Qed5 Rg4 Qde6 Rd4 Nd5 Rd7 Nc4 Re7 Qeg6 d7 Qd6 Ree4 Ncd2 Rg4 Qfg6 Rg5 Qf5 Rg6+
6n1/P4bNq/2NRPpRQ/4rn1K/1N2NBR1/2qN3b/q1BRk3/B3q3 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 a5 cxd5 a4 g4 a3 g5 Be6 g6 Kd7 bxa3 Bf5 a4 Ke8 a5 Bc8 h4 b5 Qc2 f6 Qc5 Kd7 Qe3 Bc5 Qf2 Be3 Qg2 Bg5 Qf2 Ra6 Qg3 Re6 Qb3 Re7 Qd1 Rf7 gxf7 Bf4 Qb3 g5 Qc2 g4 Qd1 Bg5 hxg5 Ba6 Qb3 Bb7 Qd1 Bc8 Kf2 h5 Kg3 c5 Kh4 c4 f8B c3 e4 g3 a4 g2 d4 b4 d6 Ke6 d7 c2 g6 b3 a6 b2 a5 Qe8 d8N+ Kd7 g7 Qe7 a7 Qc5 a8R Qc4 d5 Qe2 d6 Bb7 e6+ Kc8 e7 Kd7 e8N Rh7 e5 Rh8 e6+ Kc8 a6 Ne7 g8R Qc4+ Bf4 c1Q a7 Q1c3 Rg4 Ng8 Ne2 g1Q Qc1 Bg2 Ng7 Qa2 Nd2 b1B Ne4 Bh3 Nc6 Kb7 d7 Kb6 d8N Kb5 B8d6 Kc4 Nb4 Nc6 Bde5 Nce7 Ndc6 Qh2 Rhg1 Qh1 Nc5 Bg6 Ne4 Bf7 Rd8 Rh6 R1g3 Rh7 Bg2 Qe1 Rd6 Rh6 Bf3 Rg6 Qd2 Rg5 Nc1 Rf5 Bd4 Re5 Ncd3 Bf1 Bg2 Nf5+ Kh3 h4 Rd1 Qa6 Rg6 Qa2 Kg4 h3 Kh5 h2 Rg4 h1Q+ Bh3 Qca3 Ba1 Qc3 Qf2 Bg2 Qh4 Bf1 Bg2 Qh2 Bf3 Bh3 Qg5 Qhc2 Qh6 Qh2 Nc1 Ne3+ Ng5 Qhd2 Be4 Qdd4 Bc2 Qe4 Ncd3 Qca3 Nb2+ Kc3 N2d3+ Q3b2 Rb1 Kd2 Rc1 Ke2 Rd1 Nf5 Na5 Qb7 Ne8 Qbc3 Ne4 Qbc7 Nac6 Qe7 Qg7 Qf8 Qh7 Qg7 Qh6 Qh8 Ng7 Qh7 Rd2+
R3B3/8/4B1rB/rBR2rnp/1BPK3P/5bNQ/kN1Rb1n1/3bRr1N b - - 0 1 legal: proof: d4 e5 dxe5 f5 f4 c5 e4 b5 b4 g6 bxc5 b4 a4 b3 e6 b2 e5 Qb6 g3 Kd8 e7+ Kc7 e6 Qb5 axb5 Bg7 Nf3 Bf6 Ng1 Be5 Nc3 b1R fxe5 Rb4 Nb1 f4 Bc4 f3 Bf1 Rf4 gxf4 Bb7 Ra3 Ba6 Ra1 Bc8 Kd2 d5 Kc3 a5 e8N+ Kb7 h4 h5 b6 Kc6 b7 g5 e7 g4 f5 g3 e6 f2 f6 a4 f7 a3 f8B a2 Bc4 f1B Qf3 g2 Ng7 Rh7 e8B+ Nd7 b8R Be2 e7 Bb7 Rd8 Nf6 Kd4 Ra5 Nd2 Ng4 Nf5 Ne3 Ng3 Rf7 Nh3 g1R Nf2 Rf5 c3 Rg2 Re1 Ba8 Bb3 Kb5 c6 Nc5 Nc4 Ne4 Nb2 Ng5 Nfh1 Rg1 Bh6 Ng2 Bd2 Bb7 Rad1 a1R Ra8 Rf1 Bd7 Ra6 e8B R1a5 c7+ Bc6 Bf4 Rb6 c4+ Kb4 c8R Ka3 Ba4+ Ka2 Bd2 Bb7 Rc5 Rg6 Bb4 Bc6 Bb5 Bb7 Kc3 d4+ Kc2 d3+ Kc3 d2 Be6 Be4 Kd4 Bc6 Qg4 Be4 Qh3 B4f3 Rc1 d1B Rc2 Ra6 Rd2 Ra4 Ra6 Ra5 Ra8
rN2KN2/qQbP1R2/5bQ1/RN2B3/4PQp1/7r/r2qN1b1/NBq1N1k1 b - - 0 1 legal: proof: h4 d5 f4 g5 a4 f5 c4 b5 cxd5 e5 axb5 Na6 Nc3 Nh6 Nb1 Nc5 fxe5 f4 g4 Nf5 gxf5 g4 Ra4 Ne4 Ra1 Ng5 hxg5 Bd6 Nf3 Bc5 Ng1 Bf8 Kf2 Ke7 d4 a5 b4 h5 e4 c5 d6+ Kf7 d7 a4 e6+ Kg7 g6 Kh6 g7 Kg5 g8Q+ Bg7 d5 c4 f6 h4 d6 h3 e7 Kh4 e8N c3 b6 f3 Ke3 Kg3 Kd4 Kf2 Kc5 c2 Kc6 h2 b7 a3 b8Q a2 f7 Qg5 f8N Qh4 d8N Qe7 b5 Be6 b6 Qh4 b7 Ra7 Na3 Ra5 Qd2+ Kg3 Bd3 f2 Bb2 Kg2 Ne2 f1Q Qf4 c1R+ Nc2 Qh7 Nf7 Qe1 Ng5 Bf6 Be5 Qd2 Nf3 Ra8 Nc7 Bc4 Rf1 h1Q Qg6 Qf7 Qc8 Rh3 b8N Qh7 Nb5 Qa7 d7 Rb1 Qa6 Rb2 Kd6 Bd8 Qc6 Bc7+ Ke7 Qhg1 Ke8 Qgc5 Rae1 a1B Qb7 Ra2 Rd1 Bc3 Na1 Qca3 Bb1 Qac1 Bd6 Bf6 Be5 Qdb2 Rd5 Qbd2 Rf2+ Kh1 Ne1 Bd3 Ng1 Bf1 Ne2 Bg2 Qg3 Bg7 Rf7 Bf6 Qf4 Rh8 Rd3 Rh3 Rg3 Kh2 Ra3+ Kh1 Ng3+ Kh2 Ra5 Kg1 Ne2+
1RNq2B1/1q3Q2/1q1r3k/p1R2b1r/1BQ2Q2/3PQ1n1/1RQ1P1rq/1N1K2Q1 b - - 0 1 illegal: No possible last move, all moves rejected
qB2q3/n1B5/1P2bN1R/K1b1k2b/1P3NQb/BN3q1p/1R1r1N2/N1RB4 b - - 0 1 illegal: No possible last move, all moves rejected
2N1q1b1/8/2qN2kR/2B1n1P1/1qRK2bB/R1Bp2Rn/1QBPb3/R2Nb3 b - - 0 1 legal: proof: b4 h5 f4 e5 fxe5 g5 g4 c5 bxc5 b5 a4 f5 axb5 a5 Na3 f4 Nb1 Rh6 h3 Rf6 h4 Rf5 gxf5 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Qb6 Ra3 Qf6 Ra1 Qd8 Kf2 Kf7 e4 d5 c4 f3 Ke3 a4 f6 f2 b6 h4 c6 a3 e6+ Kg6 f7 a2 e5 g3 c5 h3 e7 g2 e8R h2 e6 Bg7 f8B Kf5 e7 Ba6 c7 Be2 c8N Kg6 c6 Qc7 b7 Qd7 c7 Qg4 Bb2 Be5 Qc1 Nd7 b8B Nh6 Na3 Bg3 Nc4 Ne5 Nh3 g1Q Bc3 Qg2 N4d6 Qb4 Qb2 Bg4 Rd8 Bh4 e8R Bg3 Ba6 f1B Nf2 Bfe2 Nd1 Be1 Rg1 h1B Re6+ Kh5 Bd3 d4+ Kf4 Qc6 Bc2 d3+ Ke3 Bhf3 Rg3 Bd5 Rf6 Bg8 Rd7 Qb3 Kd4 Qe6 Rh7 Qee8 Rf5 Kg6 Rh8 Nc4 Ra5 Ne5 Ra6 Qb7 Ra3 Qbc6 Rb1 a1Q Rc1 Qa2 Ra1 Qb3 Be7 Bh5 Ba7 Nhg4 Rh6+ Kg7 Bb6 Nf2 Bc5 Nh3 Bb6 Nc4 Bc5 Bhg4 Bf6+ Kf8 Be5 Qbb6 Bf4 Kg7 Be3 Ne5 Bf2 Qa8 Rf3 Qab8 Bh4 Qbc6 Rg3 Qbb5 Nb6 Qa5 c8R Qab5 Rb8 Qb3 Nbc8 Qba4+ Rb4 Qa5 Rh5 Kg6 Rc4 Qb4 Rh6+
1BR1R1K1/q1n3pB/1QPNQ2B/1Bq3BN/1B2Pq1N/1k4n1/1r6/qr3r2 b - - 0 1 legal: proof: d4 d5 g4 e5 a4 b5 axb5 h5 gxh5 c5 e3 e4 f3 Bb7 Ra3 Bd6 Ra6 Be5 dxc5 d4 Ra3 d3 Ra1 Bd4 exd4 e3 Be2 Bc6 Bf1 Be4 fxe4 Qd6 Ra5 Qe7 Ra1 Qd8 h4 Kd7 c4 Ke6 b4 f5 d5+ Ke5 h6 Kd4 b6 a5 h7 f4 c6 e2 Kd2 e1R b7 a4 c5 Kc4 b5 f3 d6 a3 h5 a2 c7 f2 c8B Ra4 d7 Ra5 b6 Ra6 h6 Ne7 c6 Qc7 d8B Qe5 Qb3+ Kc5 Ne2 Ng8 Ke3 d2 Bf5 d1Q Bg5 Nf6 Na3 Ra8 Nc4 Qe8 Kf4 Ra3 Nd6 Qg8 Ke5 Ra7 Ng3 Ra3 Bb5 f1Q Qe6 Kb4 Nh5 Na6 b8B Qg4 b7 Qf8 Rh4 Rg8 h8N Qgh3 h7 Nc7 Ng6 Qhf3 h8Q Re2 Rh1 Ra4 Nh4 Q3f2 Bh7 Qf7 Bcd2+ Ka3 Bb4+ Kb2 Ba7 Rf8 b8B Rd2 Rd1 a1Q Bae3 Ra3 Bh6 Rb3 Beg5 Re2 Qg8 Qc5+ Rd5 Qfg1 Kf5 Kc2 Re5 Rb1 Rh2 Qg3 Rh1 Qe7 Kg6 Qf4 Rh3 Rf7 Qd8 Rf2 Ra3 Rff1 Ra5 Rb2 Ra8 Rfb1 Qg4 Kb3 Qe6+ Ncd5 Qb6 Qea7 Qc8 Nc7 Re8 Ng4 Qf5 Ne3 Rc8 Nf1 Qe6+ Qc4 Re8 Ng3 Rc8 Qe3 Re8 Rff1 Rc8 Qf4 Re8 Nf5 Kf7 Ng3+ Kg8 Qb7 Ba7 Qd5 Rad8 Qc4 Bb8 Qba7 Rc8 Qd5 Nc4 Qc5 Nd6+
r3R1nN/2Bp2nB/N1NQqk2/3Pr2r/N2n2B1/2r1PRq1/5N2/Q3K1N1 b - - 0 1 legal: proof: b4 e5 a4 b5 axb5 g5 f4 c5 bxc5 f5 g3 Bh6 fxe5 f4 Ra5 Bb7 Ra6 Bf3 Ra1 Bg4 h3 f3 Nc3 Bf5 Nb1 g4 Na3 Bf4 gxf4 g3 Nb1 Bg4 hxg4 Qc7 Ba3 Qb6 Bc1 Qd8 d4 Kf7 c4 a5 f5 h5 d5 g2 e6+ Kf6 c6 h4 g5+ Ke7 c7 a4 c8N+ Ke8 b6 a3 e7 Kf7 e8Q+ Kg7 g6 a2 c5 h3 c6 h2 b7 Ra4 c7 Rf4 f6+ Kh6 g7 Kg5 f7 Kf6 f8N Rb4 Qe5+ Kf7 Ne7 Nf6 g8B+ Kg7 c8N Qa5 Nb6 Qa6 Bh7 Nc6 b8N Nd4 Nfg6 Re8 Nh8 Rc4 Qd6 Rc3 Nec6 Ng8 Bf4 Re5 Na4 Qb6 e3 f2+ Kd2 Qa6 Be2 f1N+ Ke1 Ng3 Nd2 Ngf5 Ne4 Qb6 Rc1 a1R Bg4 Ra2 Nf2 Qa6 Qc7 Kf6 Rc2 Qb6 Qa1 Ng7 Na6 Raa3 Na5 Qe6 Qd6 Ra2 Rb2 Raa3 Rb8 Ra2 Re8 Raa3 Nf3 Ra2 Rf1 h1R Nc6 g1Q Bg3 Rhh5 Bf4 Qg3 Ng1 Reg5 Qb4 Rf5 Bc7 Re5 Qc5 Rb2 Qca3 Rb8 Qd6 Ra8 Qa2 Rc8 Qa1 Qh2 Nh1+ Qf4 Rf3 Ra8 Bgf5 Qg4 Nf2 Qg3 Bg4+
Q1R5/2P3n1/1N2bQ1k/Q1B1pb2/2q1R1QK/1Q2qP2/B2nQnbN/b4N2 b - - 0 1 legal: proof: g4 h5 d4 f5 gxf5 a5 h4 g5 a4 b5 axb5 c5 dxc5 g4 Qd5 Rh6 Qd1 Rd6 f3 Rd3 f4 Rf3 exf3 Ra6 Qd4 Rg6 Qd1 Rg5 hxg5 Qb6 Nh3 Qc7 Ng1 Qd8 Kf2 Kf7 Kg3 Kg7 c4 e5 b4 d5 f6+ Kg6 c6 d4 c5 d3 c7 d2 c6 a4 b6 a3 b7 a2 f5+ Kh7 b5 Be7 b6 Qd6 g6+ Kh6 f7 Qd4 f8Q+ Kg5 g7 Qd7 f6 Bd6 f7 Bc5 Ne2 Qf5 Ba3 Qe6 Qd8+ Kh6 f8Q Nf6 Rh4 Nbd7 b8Q Ne8 g8Q+ Ng7 b7 Nf6 Qa8 Qc4 b8Q Be6 c8N Bd4 Bc5 Bf5 Qe1 d1B Nd2 Bb3 Rc1 a1N Qda5 Bc3 Nb6 Ne4+ Kg2 Bd4 Ng3 Nf2 Qe2 Ba2 Kh2 Nb3 Bh3 Ba1 Ndf1 Nd2 Qf6+ Bg6 Kg2 Bb3 Nh2 Ba2 Qff8 Bf5 Ngf1 g3 Re4 h4 Qe7 Bd7 Be6 h3+ Kg1 g2 Qgc8 Be8 Qf6+ Bg6 Bf7 Qc3 Qg4 Be6 c7 Qc4 Rd1 Nb3 Rd8 Nd2 Qe7 Bh7 Rc8 Bhf5 Qf6+ Bg6 Qa3 Qa6 Rd8 Nd1 Nc8 Bd7 Ba2 Be6 Qbb3 Qb5 Q3a5 Qc4 Qf8 Bgf5 Nb6 Nc3 Kf2 Nd1+ Kg3 g1Q+ Kh4 Qe3 Rc8 Nf2 Qg5+ Kh7 Ng4 h2 Qff6 h1B Ngh2 Bg2 Qc2 Qf4+ Qg4 Qe3 Qf8 Kh6 Qb3 Bf7 Qd8 B7e6 Qf6+
1B1R2NN/NpR2K1B/Q7/2n1kP2/1PrR4/1r1Nnb1Q/1Nnnn3/4Nn2 b - - 0 1 legal: proof: g4 d5 e4 h5 gxh5 f5 exf5 d4 a3 d3 cxd3 Qd6 d4 Qd7 d5 Qd8 b4 Qd7 a4 Qb5 axb5 Be6 Ra5 Bd7 Ra1 Bc8 Bg2 e6 Bh3 a6 Bf1 Bc5 Bd3 Bd4 Bf1 Ba7 b6 Kf8 bxa7 Ke8 Ke2 Kd7 Ke3 Kd6 Kf4 c5 Kg5 c4 Kg6 e5 h4 e4 d4 e3 f4 c3 h6 e2 h7 e1N h5 a5 h6 c2 f6 a4 f7 a3 f8N a2 Qh5 Nc6 Ne6 Nge7+ Kf7 g5 Qh3 g4 Bd3 g3 Nf3 g2 Na3 g1N Nc5 Bf5 Nc4+ Kc7 d6+ Kd8 d5 Ng6 d7 Kc7 d8N Rc8 a8Q Nge7 Qa6 Bd7 Nb2 Nd4 Nc6 Kd6 Na7+ Bc6 Bg6 Rc7 f5 Ng2 Ncd3 Nge2 Rd1 Nb3 Nfe1 Ne3 Rb1 Rhc8 h8N a1N Bh7 Nc5 Ng6 Nf1 Bd2 c1N Bf4+ Kd7 d6 Nc2 Rd2 N1b3 Rc1 Nd5 Ne7 Nde3 Ng8 Bf3 Rdd1 Nbd2 Bg3 Kd8+ d7 Rc6 Bf4 Rg6 Bb8 Rg3 Bg6 Rc6 h7 Rc7 h8N Rc6 Be5 Rc8 Bh7 Rc6 Bf6+ Kc7 Bd8+ Kd6 Bc7+ Kd5 d8R+ Nd7 Ra1 Rc4 Bb8 Ke4 Ra5 Kd4 Rc5 Ke4 Rc7 Nc5 Nf2+ Ke5 Rd4 Rg4 Rd8 Rc3 Rd4 Rd3 Rd8 Rc4 Rd4 Rb3 Rd8 Nb1 R1d4 Nbd2 Nfd3+
2RBb1B1/1K6/1Q3R1B/k1r1b1nR/q1br1B1n/N5Np/p1NP1P2/6BR b - - 0 1 illegal: No possible last move, all moves rejected
1QQ3R1/QbNq4/3Q1BBb/K1p2r1r/P1RN1p2/1Q1B1Qrn/k6P/b7 b - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 a5 cxd5 a4 b3 Ra7 bxa4 Ra8 g4 h5 gxh5 b5 a3 b4 Bg2 b3 Bh3 Na6 Bf1 Nb4 axb4 Bf5 Nc3 Bd7 Nb1 Bc8 d4 Kd7 Kd2 f5 Kc3 g5 e4 c6 h6 g4 d6 Ke6 b5 b2 Kb4 f4 h7 g3 b6 g2 b7 Qe8 b8Q Qf7 d5+ Kd7 e6+ Ke8 e7 Kd7 e8B+ Kd8 e5 Ra7 e6 Qg7 Bg6 Be7 Nf3 g1B Qb3 Nh6 Nd4 Ra6 Nc3 b1R Ncb5 Bf2 Qa7 Bf6 d7 Ke7 Bb2 Nf7 Nc7 Kd6 e7 Bg5 e8Q Bh6 Qee3 Ra5 Bfd3 Bb7 Rc1 Ng5 d8Q+ Qd7 Qc8 Nh3 Rc4 Rg1 Qf3 Rg3 Rg1 Rf8 h8Q Rf5 Qhd8 Ke5 d6 Rd5 Rc2 c5+ Ka5 Be3 Ba1 Bc1 Bc3 Bb2 Qcb8 Ba1 Qdc8 Qc6 d7 Kd6 d8Q+ Qd7 Bb2 Rh5 Rc4 Rdf5 Bf1 Ke5 Qg4 Ke4 Bd3+ Ke3 Qf3+ Kd2 Nc2 Ba6 Bf6 Bb7 Rg2+ Kc1 Qe7 Be5 Qd6 Ba1 Qa3+ Kb1 Qb4+ Ka2 Nd4+ Nf2 Qb5 Rgh3 Rg4 Rg3 Qbb6 Nh3 Rg5 Bb2 Qb3+ Ka1 Be8 Bc3+ Kb6 Bb2 Rg8 Bc3 Bg6 Bb2 Qb4 Ka2 Ka5 Ba1 Qb3#
6bK/2Q1rQQ1/1pp3Q1/2R1n1nk/N1bQ2Rn/qP1Q4/2bB1P1N/5B1B b - - 0 1 illegal: No possible last move, all moves rejected
2N2r1q/8/B1Q2R1b/1Np1Q1NN/6Pp/nN1r1P1q/kN5B/1R1Rb1bK b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 f5 axb5 g5 e4 g4 f3 f4 g3 Bf5 gxf4 g3 exf5 Nc6 h3 Ne5 Ke2 Kd7 Ke1 Ng4 hxg4 Ke8 b4 Kf7 d4 h5 b6 a5 b5 c5 b7 e5 b8Q g2 Kf2 h4 d6 a4 d5 e4 d7 a3 f6 a2 d6 Ke6 f7 Be7 f8R Rh6 f5+ Ke5 b6 Rh7 b7 Ra3 f6 Qc8 d8N Rc3 f7 Qd7 Na3 Rh5 Rb1 a1B Bf4+ Kf6 Ba6 Rf5 Ne2 g1B+ Kg2 e3 Nb5 Qe8 d7 Ra3 Qa4 Rg5 Nc6 Ke6 d8N+ Kd5 Ne5 Rd3 Ned4 e2 N8c6 e1Q Nca7 Nf6 Bh2 Nd7 Nb3 Nb6 Nc4 Bc3 Nb2 Rg8 Nc8 Nc4 Rd1 Bg5 Qe5+ Kc6 Rb1 Bh6 Rd1 Na3 Rb1 Bgd4 Rf1 Qc1 Kh1 Bg1 Rd1 Be1 Qae4+ Kd7 Qa4 Qf4 Qae4 Qg3 Qg6 Qh3 b8N+ Kd8 Nd7 Rh8 Nbd6 Kc7 Nf6 Kc6 Nb5 Qd8 Nh5+ Qf6 Rd8 Re8 Rd5 Rf8 Qge4 Qh8 Qa4 Rd8 f8N Re8 Nh7 Rf8 Ncd6 Kb6 Rd4 Kc6 Rf4 Kb6 Rf6 Kc6 Qae4+ Kb6 N3d4 Ka5 Ng5 Kb4 Nc8 Bg7 Nba7 Bh6 Qc6 Kc3 Nab5+ Kb4 Nc2+ Kb3 Na1+ Ka2 Nb3
n2R4/6B1/2P1KR1Q/p2B2r1/2P2bB1/qrnNNBN1/B1pQ4/nkB4q b - - 0 1 illegal: No possible last move
1N4n1/B5NK/PB1q1RNR/qPR2B1r/2p2qR1/pk5Q/3R2N1/5brb b - - 0 1 legal: proof: e4 a5 b4 h5 c4 f5 exf5 d5 cxd5 a4 g4 Qd7 gxh5 Qd8 a3 b5 Qb3 e6 Qf3 Nc6 Qd1 Na5 bxa5 b4 Ra2 b3 Ra1 Bb4 axb4 Qd7 Be2 Qd6 Bf1 Qd8 Ke2 Ke7 Kf3 Kd6 Ke4 c5 d4 g5 h4 a3 f4 c4 f6 e5 f5 b2 h6 g4 a6 g3 f7 g2 f8N Qg5 h7 Qg3 f6 Bd7 f7 Ne7 h5 Qc3 h6 Bg4 b5 Nf5 Nd7 Qe1+ Be3 Bh5 f8R Bf7 Qd3 Qc1 Nb8 Qc3 Ne2 g1Q Nd2 b1B Nf3 Qd2 Rh5 Qh2 Ne1 Bc2 Ng2 Bd1 Nef4 Rg8 h8R Qc3 h7 Qd2 Ne6 Bc2 Ng7 Bg6 Rf6+ Kc7 d6+ Kb6 d5+ Ka5 d7 Kb4 d8R Bf7 d6 Nh6 d7 Qd1 Ba7 Bd5+ Ke3 e4 Qb3+ Ka5 Bd3 Qf4+ Kd4 Bc6 Rc5 Bb1 Qc3+ Ka4 Ra2 Bd5 Rd2 e3+ Be4 e2 Qh3 e1Q Rdc8 Qfg3 d8B Bd3 Bdb6 Bf1 Bf5 Kb3 Re8 Qdf3 Re4 Qd6 Rg4 Qfg3 Rf2 Qa5 Rd2 Bf7+ Ke4 Bh5 Ne8 Rg6 Ng7 Ng8 Bd7 Rh6 Kf5 Bf7 Kg5 Bd5 Bf5 Rh5+ Kg6 Bb7 Ne3 Bh1 Ng2 Nh6 Rf8 Qf4 h8N Ng8 Rfc8 Qd6 R8c6 Qf4 Nd7 Re8 Nb8 Re1 Rce6 Bd3 Rec6 Rg1 Rcd6 Bf1 Rde6 Nh6 Kh7 Ng8+ Rh6 Qd6 Rf6 Qf4 Ng6 Qd3 Qh2 Qdd6 Qh3+
8/bNrP2Q1/2N1n2R/3NNkN1/4Rb1K/qpP1Q2B/1pnBn2Q/3q3N b - - 0 1 illegal: Other
1B1qb1BB/R2P3p/K1p3qr/3N2bR/n2Pk1B1/q3B3/2N2r1Q/1B3QQ1 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Ne5 g5 Rh8 g7 Ng6 hxg6 Ra8 Qc2 Ng8 Qa4 Bb7 Qd1 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 a5 d4+ Ke4 b6 e5 Kb5 a4 d6 a3 f6 a2 b7 Kd5 b8B e4 f7 e3 d7 e2 Be3 e1Q Nh3 Ra7 Be2 Qf6 Nf4+ Ke4 Bg4 Ra6 Rh5 Ra4 Na3 Qe6 Nd5 Qf2 Nc2 Be7 f8B Nf6 g8Q Qh4 g7 Ra6 g6 Bb7 Qf1 Rd6 Ka5 c6 b5 Ba6 b6 Bc4 b7 Qg5 Rb1 a1Q+ Kb6 Qa3 Ra1 Qc3 Ra7 Qa3 Qf7 Bb3 g8B Qef5 g7 Qfg6 Qg1 Re6 Bh2 Ba2 b8Q Bb1 Ndb4 Nd5+ Kb7 Nc3 Qff1 Na4 Nd5 Qh4 Ka6 Bg5 Bfd6 Ba2 Bde5 Rf6 B8e6 Rhf8 g8B Rf2 Bh8 R8f6 Qb2 Bb3 Bb8 Ba2 Be2 Bb3 B6g4 Ba2 Ne7 Bf7 Nd5 Be8 Bc4 Qg7 Ba2 Rh6 Bb1 Qg6 Kb7 Qh2 Ka6 Qc7 Qb6 Qd8 Qc7 Rf8 Qd6 Rf2 Qdh2
3rR1k1/1nR5/R1R4P/N4nB1/2r1bb1p/1B1prN1n/2PQ2K1/NQ1R3R b - - 0 1 legal: proof: d4 b5 h4 g5 hxg5 h5 g4 c5 dxc5 f5 e4 h4 exf5 Nf6 a4 Ng8 axb5 Qb6 Ne2 Qh6 Ng1 Qh5 gxh5 Rh7 Qd2 Rh6 Qd1 Rh8 b4 Kf7 f4 a5 Kf2 e5 b6 d5 b7 a4 c6 a3 c7 e4 f6 d4 g6+ Ke8 g7 Kf7 h6 e3+ Kg2 a2 f5 e2 b5 e1R b6 Bd6 Nf3 Na6 b8N Ba3 b7 Bc5 Bc4+ Be6 c8R d3 Bg5 Nb4 Nc6 Rf1 b8Q Bb6 Rc7+ Ne7 g8R Be3 Nbd2 Ra4 Na5 Bf4 Ndb3 Re1 Rgc8 Rd8 Qd2 Bd5 Rd1 Kg8 Na1 Re6 Qb5 Be4 Bb3 Nbd5 Ra8 Rc4 f7+ Kh7 f6 Nf5 f8R+ Re7 Rf7+ Kg8 Rc6 Re6 Ba4 Re5 Raa6 Re6 N1b3 a1N Rfc7 Re5 Nd4 Nb3 f7+ Kh8 Qbb4 Nc5 Qb1 Nb7 Bb3 Re7 f8R+ Kh7 Rff6 Kg8 Rfe6 Be3 Kf1 Nf4 Ba2 Nh3 Ndb3 Bf4 Na1 Bd5 Bb3 Ree8 Kg2 Re7 Red6 Re3 Re6 Be4 Re8+
3b1N2/K1R3BP/1n1PN1B1/1BNQn3/1N1pR3/N1k2b2/p1nr2N1/2b1r1Q1 b - - 0 1 legal: proof: c4 b5 e4 d5 d4 h5 a4 c5 dxc5 f5 exf5 d4 axb5 Rh7 g4 Rh8 gxh5 Qd5 cxd5 Ba6 Bc4 Bb7 Bf1 Bc8 Ke2 Kd7 Kd3 e5 Kc4 g5 f4 a5 b4 e4 h4 a4 h6 a3 b6 a2 Kb5 g4 h7 e3 c6+ Kd6 c7 g3 f6 e2 h5 e1B h6 g2 f7 Bg3 b7 Nc6 Kb6 Na5 b8N Bh4 b5 Be6 c8B Bf6 f5 Ke5 d6 Bc4 Nf3+ Kd5 Ne1 g1N Na3 Bd3 Ng2 Bc4 Na6 Nb7 Nc5 Ra7 Rh4 Bg5 f6 Bf4 Bf5 Be7 f8N Be3 f7 Bf6 Nfe6 Ne7 f8N Ng6 Re4 Ne5 Bg6 Be2 Qe1 Rg8 h8Q Ngf3 h7 Na5 Qg3 Rgg7 Qg8 Rae7 Qh2 Rgf7 Qg1 Nac4+ Ka6 Bfg5 b6 Ne1 b7 Bf3 b8N Nc2 Nc6 Nb6 Bb5 Re8 Bd2 Bd8 Rc1 Rf5 Ka7 Rg5 Nh4 Rg2 Qf7 Rf2 Ng2 Bh6 Bg5 Rd2 Bf6 Bf4 Bg7 Be3 Ba6 Bf4 Nb5 Kc4 Na3+ Kc3 Nb4 Re2 Bb5 Bd2 Rd1 Bc1 Qb7 Rf2 Qd5 Rd2 Rf1 Bg4 Rf5 Bf3 Rf7 Rf2 Re1 Ned7 Nc7 Rd2 Re2 Re3 N7e6 Ne5 Rc7 Re4 Rf2 Re1 Re2 Bh5 Re4 Bg4 Qh2 Bf3 Qg1
k2NB1N1/b1NnP3/P2RQ1p1/1Nr1Bn1N/1n3Rp1/K5bN/3r3Q/R3r3 b - - 0 1 illegal: Other
B4KNR/1B2rP1b/1R3q1N/N2pb1Pr/1q1B4/B2Q3R/q1p4k/rBR5 b - - 0 1 legal: proof: e4 c5 b4 f5 exf5 g5 h4 b5 hxg5 Nf6 a4 Bb7 axb5 Na6 d4 Bg7 c4 Bc6 b6 Bb7 b5 Bc8 b7 Ne4 b6 Bf8 Bd2 Nc3 Bc1 Nb5 cxb5 c4 Rh6 Rb8 Rh1 Nc5 dxc5 Ra8 Ke2 Kf7 Kf3 a5 Kg4 e5 Kh5 e4 b8B h6 f4 c3 g4 d6 b7 e3 c6 a4 b6 a3 f6 Ke6 Kg6 a2 c7 h5 f5+ Ke5 Kf7 Kf4 g6 Kg3 g7 h4 g8B c2 g5 h3 Ba7 e2 b8R e1Q b7 h2 Qd3+ Qe3 Na3 Be7 Nc4 Rh3 Ba3 Rh5 Bg2 Qf3 Nh3 Rh6 Nf2 Rh5 Rac1 a1Q Na5 Bf8 Ng4 Bh6 Bd4 Bg7 Nh6 Bd7 c8B Ra7 Ra8 Bh8 b8R Bb5+ Bb7 Qd7+ Kf8 Bc4 f7 Qb5 f6 Qab2 Ke7 Q5b3 f8N Qb4 Nh7 Qa2 Kf8 Bd5 Be6 Be4 f7 Be5 Nf6 Bg6 Nfg8 Bh7 Ba6 Re7 Rb6 Bf4 Bb7 Be5 Rhe1 h1R Re3 Kh2 Rb8 Qab1 Ba2 Qf6 Rc8 Qa1 Bb1 Qa2 Ba8 Rg1 Bgb7 d5 Rh3+ Kg2 Rf1 Qab2 Ba2 Qe6 Nf6 Rh1 Kg7 Q2b3 Rh8 Qc6 Kf8 Q3a4 Nfg8 Qf6 Bc1 Qab3 Ba3 Qb2 Rf5 Ra1 Bb1 Qa2 Rf2+ Kg1 Rf1+ Kg2 Rhf3 Kh2 Rc1 Qfd6 Re3 Qf6 Rh3+
5N1N/N1rBq1n1/kBqBnP2/q1pq1R2/1Q2NpK1/b3P3/2B1RN2/4R3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 hxg5 f4 c4 Bg7 cxd5 Bf8 Rh4 e5 Ra4 a5 Ke2 Bf5 exf5 e4 Rh1 e3 Ra1 Ra6 Kf3 e2 Qb3 Re6 Qd1 Re3+ fxe3 Bd6 Kf2 Bf8 g4 Kd7 Kf3 Kc8 d4 Kb7 b4 e1Q f6 h5 g6 h4 g7 c6 g5 h3 b6 a4 g6 h2 b5 a3 d6 a2 d5 Nh6 g8R Qe7 d7 Bg7 d8B Qd2 d6 Nf5 d7 Qc3 Qa4 Qeb4 Bh3 Rh5 Kg4 Qe4 Nd2 Qcc4 Ba3 Rh6 Qb4 Qb1 Ne4 Qbc2 Re1 a1Q Re2 Bh8 g7 Ka8 b7+ Ka7 b6+ Ka6 Re8 Q4a2 g8B Q1b2 Bh7 Qbc3 Re5 Nd6 Rf5 Qf7 Bc7 Qe5 d8N Qfe7 Nf7 Bg7 Nh8 Bf8 Bg6 Nd7 b8N+ Kb7 Bh7 Nc5 Nd7 Ka6 b7 Ne8 Bb6 Ne6 Bg6 Qa5 Bh7 Bg7 Nf8 Qd1 Bg6 Qdd5 Bh7 Rh5 Bg6 Rh7 b8N+ Kb7 Qb3 Bh6 Bd6 Rf7 Qb4 N8g7 Nbd7 Ka6 Ne5 Qe8 Bh7 Rc7 Bg6 Qe7 Bh7 Bg5 Bg6 c5 Nc6 Bh4 Na7 Be1 Nf3 Qc4 Ne5 Qd5 Nd3 Bd2 Rd1 h1Q Ndf2 Bc1 Rde1 Ba3 Be8 Qd1 Ba4 Qd5 Bc2 Qc6 Ra1 Qd1 Rb1 Qd3 Rbe1 Qdd5 Rg5 Qe5 Kh4 Nd8 Bd7 Qed5 Kg4 Nde6 Rf5
1r1Q2b1/3NR2b/qBPNpbBb/1B2q2R/5PR1/2nB1R1p/k3N3/2R3K1 b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 gxf5 g4 h4 Bh6 f4 Bf8 f6 Nc6 e3 Nd4 e4 Nf5 exf5 Nh6 Kf2 Rg8 Ke2 Rg5 hxg5 Ng8 Ke1 Bg7 Bd3 Qc7 Qf3 Kf8 Ke2 Bb7 Ra4 Nh6 Nc3 Rd8 Ra3 Bc8 Nb1 Kf7 Kf1 Rh8 Ra1 Bf8 Ke1 Ke8 Qd1 Ng8 Bf1 Qd8 Kf2 Kf7 c4 d5 b4 h5 c6 h4 c7 e6 c5 a4 c6 d4 g6+ Ke8 f7+ Ke7 f6+ Kd6 g7 Kd5 b6 a3 b5 d3 b7 Kc4 b8N a2 b6 Nh6 g8B Bb7 c8B Ba6 b7 Qe8 Nd7 Nf5 b8R Ne3 Nc3 Bh6 f8R Qh5 f7 Qe5 Re8 Nd5 Nge2 g3+ Kg1 d2 f8R g2 Ne4 Nc3 Rb3 h3 Bh7 Rg8 Rf5 Bb5 Rab1 a1Q Bg6 Qa6 Re7 Rh8 Bb7 Rb8 Rh5 Ba4 Ra3 Bc2 Bb2 Kb4 Nd6 Be4 Rc1 Bb1 Qe1 d1B Qh4 Bdc2 Rb3+ Ka4 Ba3 Bd3 Bc5 Bf5 Bb6 Bbd3 Bf7 Bh7 Bg6 Bg8 Qf6 Bb1 Qf8 Bf5 Qd8 Bb1 Ng3 Bf5 Bd3 Be4 Ne2 Bf5 Rb5 Ka3 Rb3+ Ka2 Bb5 Nd1 Rg3 Nc3 Rg4 Bc2 Rf1 Be4 Rf3 Bc2 Kf2 g1B+ Kf1 Bf2 Bbd3 Bg3 Kg1 Bh4 Bc8 Bf6 Bb5 Qa5 Bca6 Be4 Bd3 Qa4 Bab5 Qa6 Kh2 Bf5 Rc1 Be4 Kg1 Bf5 Bf7 Bfh7 Bfg6
BBB2RR1/p1RQ2p1/rbN3Pr/1P3Kb1/5N2/1r3b1k/R1r4N/RN4r1 b - - 0 1 illegal: No proof kernel
5bN1/Q2PB2k/1Q2QRp1/R1R3KB/qN6/nRpP2np/r7/1bR1r2R b - - 0 1 legal: proof: e4 d5 a4 f5 exf5 b5 axb5 c6 c4 a6 cxd5 e6 g4 Qe7 f6 Qd8 h4 g6 f4 a5 g5 Bc5 h5 Ba6 h6 Bf8 f5 Kd7 f7 Qf6 gxf6 Bc8 Ra3 Ne7 Ra4 Rg8 Ra2 Rg7 hxg7 Ng8 Ra1 Bb7 Kf2 Bd6 Qa4 Na6 Bc4 Ne7 Ke1 Rh8 Rh2 Ng8 Qd1 Bc8 Rh1 Nb8 Bf1 Bf8 Kf2 h5 Ke3 a4 Kf4 h4 b4 a3 b6 a2 d6 e5+ Kg5 e4 b7 c5 d3 c4 b5 e3 b6 c3 Ne2 h3 Qb3 Nc6 b8Q Rh6 b7 Rh7 Na3 Be7 f8R Rh8 Nd4 e2 Nac2 e1Q Ba3 Qe5 Be2 Qh2 Bh5 Nh6 g8Q Na7 Nc6 Bd8 Ne7 Qf2 f7 Qd4 f6 Nb5 Qg7 Rh7 Ng8 Nf5 Qc4 Qe4 Rac1 a1R Re8 Qd4 Re5 Ng3 f8R+ Be7 Bb4 Na3 Ra5 Qe4 Qa6 Ke6 d7+ Qc6 Qaa7 Qa4 Rd8 Bc5 f7 Bd6 f8R Bc5 Rff1 Bf8 Qgd4 Re7 Rff5 Re8 Qg4 Re7 Qc7 Re8 b8R Bb7 Rdc8 Bd5 Bc5 Ba2 Rb3 Bb1 Nb4 Ra2 Bd6 Re7 Qcb6 Re8 Rfc5+ Kf7 R8c6 Re1 Be7 Kg7 Rf6 Kh7 Qge6
Nb2b1R1/1B2p1p1/2P1N1b1/RNB5/BQ4r1/1n1kR1pK/3r1P1R/1N2q2N b - - 0 1 illegal: Other
5Bn1/p2p1RNB/Q1RN1Bbp/K2nb1Rq/1r2R2k/N1nP1B2/4P3/1B6 b - - 0 1 legal: proof: b4 b5 g4 c5 bxc5 g5 f4 e5 fxe5 f5 gxf5 b4 h4 g4 a3 Na6 axb4 Rb8 b5 Rb6 Ra2 Rg6 Ra1 Rg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 c4 Ke7 f6+ Kf7 c6 Kg6 e6 g3 c7 g2 e7 h6 e8B+ Kf5 f7 Kg4 c5 Qf6 b6 Nb8 c6 Na6 b7 Qg6 b8R Bb4 f8B Qh5 g6 Ba5 g7 Qb5 Bg6 Qb6 Rh4+ Kg3 Nh3 g1N Qa4 Bc3 Bg2 Qb4 Rb5 Nb8 Na3 Ne7 g8B Qf4 Ng5 Rh7 Qa6 Qe5 Re4 Qc5 Bb2 Qb6 Ne6 Bb7 c8N Nh3 c7 Qc5 Nd6 Ng5 c8R Be5 Rc6 Rg7 B8h7 Nd5 Bf3 Rf7 Ra5 Rf4 Ng7 Kh4 Kd1 Qb5 Kc2 Qc5+ Kb3 Qb5+ Rb4 Ne4 Rf1 Nec3 Bb1 Ba8 d3 Re4 Rc4 Nc6 Rc5 Nce7 Rc6 Qc5 Rba4 Rf4 Re4 Ng8 Rb5 Qg1 Ra5 Qg6 Rac5 Qh5 Ba1 Nb6 Kb4 Nbd5+ Ka5 Rg4 Rf4 Bb7 Rf7 Rb4 Rc4+ Nf4 Rg1 Ba8 Rg5 Bb7 Rc8 Be4 R8c6 Bg6 Re4 Nb5 Bd4 Nc3 Re3 Nfd5 Re4+ Bf4 Ree7 Bg3 Bf6 Bh2 Re3 Be5 Re4+
1Bn5/r2N3p/N4B2/nP2r1NB/5bk1/RR1Qb2N/1p1RP1p1/NK1bR3 b - - 0 1 legal: proof: c4 a5 h4 g5 g4 f5 gxf5 e5 b4 b5 bxa5 g4 d4 b4 dxe5 Qg5 hxg5 Ra6 Rh3 Rb6 Rh1 Rb5 cxb5 Ke7 Bb2 Kd8 Bc1 Ke8 Kd2 Kf7 Kc2 c5 f4 d5 a4 c4 e6+ Kg7 g6 Kf6 e7 c3 e8N+ Ke7 a6 g3 a7 d4 a8N Na6 f6+ Ke6 f5+ Ke5 g7 Bc5 a5 Ne7 g8R Ke4 f7 Ba7 f8N Bc5 f6 Kf5 f7 Nc6 Nb6 Be6 Na3 d3+ Kb1 b3 Nc2 b2 Bg5 d2 Bf6 Bd5 Nc7 Bc4 Nbd7 Na7 Ra3 Bb4 Nh3 Nc5 a6 Be6 Bg2 Nb3 Re1 Bc5 Na1 Nc8 a7 Be3 a8R Na5 Na6 Bb3 Bf3 g2 Rg3 Bf4 Ne6 Re8 Neg5 Re5 f8B Be3 Qc1 d1R Bh5 Rd6 B8e7 Bd1 Qd2 Rd4 Bc5 Ra4 Ba7 Bf4 Bb8 c2+ Ka2 c1B Rb3 Be3 Kb1 Bf4 Qd4 Bce3 Ra7 Rc4 Rb7 Rc7 Rb6 Rb7 Rd6 Ra7 Qc3 Re6 Rd2 Re5 Be8 Kg4 Qd3 Rc5 Bg6 Re5 Bh5+
B1q1R3/RBq3N1/p1Pp1N2/2q2QKR/8/2Pp1rBB/1bnk2R1/n3N1R1 b - - 0 1 illegal: Other
1N1B2B1/2PQB1KR/kNN5/1np3n1/r5R1/q2bPp1N/R1p1q3/n1B1N3 b - - 0 1 illegal: Other
3n1QbK/1Qp1R2P/q1Q1R1pb/2R2pNQ/2Q3q1/2B3P1/4Q1q1/NB4kr b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 fxe5 Kd7 c4 Ke7 cxd5 Ke8 Nh3 h4 Ng1 Nd7 Ra2 Ndf6 Ra5 Nh5 Ra1 a5 gxh5 Ra6 Ra3 Rg6 Ra1 Rg3 hxg3 Qd7 Na3 Qd6 Nb1 Qd8 Kf2 Ke7 Kf3 f5 Kf4 h3 Kg5 g6 e4 a4 b4 a3 d4 a2 e6 Kd6+ e7 h2 b6 Rh6 e5+ Kd7 d6 Ke6 b7 Kd5 b8R Ke4 d5 Nf6 e8Q Bd7 e6 Be7 b5 Qc8 b6 Bd8 e7 Ba4 b7 Rh8 d7 Bb3 d6 Ng4 h6 Nf6 h7 Ng4 Nf3 Bc2 Bd3+ Kd5 Na3 Rf8 Bb2 Nh6 Re1 h1Q Re6 Qh3 Rc1 a1Q Bc3 Rg8 Kf6 Qg2 Ng5 Qb2 Qh5 Ba4 Nc2 Bb5 Na1 Qe4 Bb1 Qbg2 Ra8 Qa4 b8Q Qg4 Qb7+ Kc5 Ra4 Nf7 Rae4 Bc4 Re2 Rf8 Kg7 Qa8 Ree1 Qa6 Rc2 Rh8 Qg8 Ba2 e8Q Be7 d8Q Bf8+ Kf6 Bh6 d7 Bd5 Qda8 Nd8 Qef8+ Kc4 Qc6+ Kd3 Qab7 Bc4 Qgf7 Rg8 Q8e7 Re8 Qg8 Nf7 d8Q+ Bd5 Qdd6 Nd8 Qef8 Re7 Qe5 Rd7 Re7 Ba2 Qgb3 Rd4 Q3b4 Bg8 Qee6 Rf4 Qa2 Rf1 R1e6 Rh1 Qbb2 Q2e4 Qac4+ Ke3 Q2b5 Rf1 Rc1 Kf2 Qe2+ Kg1 Qbc4 Nf7 Rd1 Qef3 Rd5 Qg2 Rc5 Nd8 Nf7 Bf4 Kg7 Bh6+ Kh8 Re1 Qed3 Kf2 Qd1 Rh1 Qde2+ Kg1 Ng5
NB6/3K2Qb/4r1NR/3R1pN1/R1Pn1N1n/1Bpk3b/Pp1bR3/4BN1n b - - 0 1 legal: proof: c4 b5 g4 a5 b4 e5 bxa5 h5 gxh5 c5 f4 b4 fxe5 Qb6 d3 Qb5 cxb5 c4 Bg5 c3 Bc1 Ra6 Bd2 Rc6 Bc1 Rc4 dxc4 Bd6 Qb3 Be7 Qd1 Bf8 Kf2 Ke7 Kg3 Ke6 Kg4 d5 h4 g5 e4 f6 a6 d4 a7 d3 a8N d2 b6 b3 b7 b2 h6 Ba3 h7 Ne7 h5 Na6 b8B Nc6 h6 Nd8 Nh3 Be7 Bd3 Rg8 h8N Bd7 h7 Nc5 Nf7 Rf8 h8N Nc6 Bc2 Nd3 Bb3 Na5 Qg1 Bc5 Nf4+ Ke7+ e6 d1B+ Kf5 g4 e5 g3 Rh2 g2 Nd2 Nc6 Nf1 Nf2 Rh6 Re8 Bd2 Be3 Be1 Nh1 Rb1 Be2 Rd1 Bc8 Rd6 Bd2 Qa7+ Bd7 Ng5 g1N Rd3 Bh5 Rd4 Bf7 Rd3 Bg8 Nhg6+ Kd8 Qb7 Nf3 Rd5 Re7 Ra5 Bh7 Ra4 Bc8 Qa7 Re8 Qg7 Nh4+ Ke4 f5+ Kd5 Bb7 e7+ Kd7 Kc5 Nd8 Kb6 Bg2 Kb5 Bh3 e6+ Kc8 Kc5 Kb7 Kd6 Nc6 Kd7 Rh8 Nc7 Kb6 e8R Kc5 e7 Rf8 Rc8 Rf6 e8R Kd4 Re5 Re6 Na8 Na7 Rcc5 Nb5 Nh5 Kd3 Re2 Nd4 Rca5 Be3 Rd5 Bd2 Nhf4+
3nR3/2kqPb2/pN1R3b/N4P2/p1B5/b1n1BQ2/1p4QK/RB1R1RRn b - - 0 1 illegal: Other
2NK2R1/P2N2n1/3N3b/nr1B1Qpp/k2p1r2/3RP3/1N2NrB1/3R1nBB b - - 0 1 legal: proof: d4 c5 dxc5 f5 f4 e5 fxe5 g5 b4 a5 bxa5 b6 h4 Bb7 h5 Qf6 g4 Qg6 hxg6 f4 Nf3 Be4 Ng1 Bf5 gxf5 Bg7 Qd5 Bh6 Qd1 Bf8 Kd2 d5 Kc3 Kd7 Kb4 Kc6 a4 h5 c4 b5 f6 f3 f7 f2 g7 d4 e6 Ne7 g8R Nd7 a6 Rb8 Ka5 b4 a7 b3 a8B+ Rb7 Nd2 b2 Rh3 b1N Rd3 Bh6 f8N Nb8 Qc2 Ng6 e7 Na6 e8N Ne5 Nd6 Nc7 Bg2+ Nf3 Nd7 Ne8 Ka6 f1R a5 Kc7 c6 Ne1 c5 Rf3 N2c4 Rb8 Be3 Nd2 Rd1 Kd8 c7+ Ke7 c8N+ Ke6 c6 Kd5 c7+ Rb7 Bf2 Kc6 e3 Nf1 Ne2 Ng7 Bg1 Kd5 Qb1 Nc2 Bh1 Na1 Qb5+ Ke6 Qb1 Rb2 Bb7 Rf5 Bbg2 Nb3 Kb6 Rf4 a6 Rd2 a7 Na5 Ne7 Rc2 c8B Rb2+ Kc7 Rb5 Kd8 Rf2 Re8 Rhf8 Bcb7 R8f4 Bbf3 Re4 Nec8+ Kd5 Rg8 Kc6 Nf8 Kc5 Qc2 Kb4 Nd7 Rf4 Bd5 Nh2 R3d2 Nf1 Qf5 Kb3 Rd3+ Ka4 Nb2+
B2R4/1QQ2rN1/pN4Pq/QP3prn/QB6/b2p4/1QQrRkNK/5r2 b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 e5 fxe5 b4 g4 b3 g5 Nh6 g6 Ba6 axb3 Ng8 b4 Bb7 b5 Bc8 h3 f6 Bf4 Nc6 Qd3 Ke7 Nd2 Bb7 Nb1 Nd4 h4 Ne6 Qd5 Ng5 Qd1 Bd5 Bc1 Bf7 gxf7 Ne4 Ra5 g5 Ra2 g4 Ra1 Ng5 hxg5 Rc8 Rh5 Rb8 Rh1 Ra8 Kf2 Ke6 Kg2 Kf5 c4 Ke4 b4 d5 e6 h5 b6 h4 b7 d4 b8Q h3+ Kh2 a6 e7 f5 e8Q+ Ne7 c6 d3 c5 Qd7 c7 Rh6 c8Q Kd4 e4 Rh8 g6 Qb7 e5 Ng8 c6 Be7 f8Q Nf6 c7 Qa7 e6 Ng8 Nc3 Nf6 Ba3 Ke3 Qcb7 Nh5 c8Q Bh4 e7 Bf6 Na4 Qd4 Ra2 Ra7 Qdc2 Qc5 Ne2 Qc4 Bg2 Qc6 Qcc7 Bb2 Nb6 Kf2 Re1 Qe4 Qea4 Qe3 e8N Qh6 Ng7 Rh7 Qfd8 g3+ Kh1 h2 b5 Ke3 Bb4 Ba3 Qf6 Kf2 Qbd8 Rh8 Qfb2 Re8 Nf4+ Re2 Be4 Rd2 Re3 Nf6 Ng2 Nh5 Qbc8 Rb7 Q8b8 Ra7 Ba8 Rb7 Re8 Ra7 Qcd6 Rf7 Q6c7 Rf6 Ra1 Qf4 Qcb7 Rf8 Nc8 Qd4 Nh4 Rf7 Qda5 Qf4 Q8c7 Qh6 Rg8 Ke2 Kg2 h1R Nb6 Rf1 Rd8 Ke3+ Kh3 g2 Re1+ Kf2 Kh2 g1R Re3 Rg3 Ng2 Rg5 Re2+
2B5/nPb3Rq/N1n1P1bk/2qR3B/R2p2Qp/p1B5/4RRR1/Nb1K3Q b - - 0 1 legal: proof: d4 h5 a4 a5 g4 c5 dxc5 f5 f4 b5 axb5 e5 fxe5 g5 Bd2 f4 Bc1 Rh7 h3 Rf7 h4 Rf5 gxf5 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Qf6 Bh3 Qe7 Bf1 Qd8 e4 Kf7 c4 Kg7 b4 d5 g6 f3 e6 d4 e5 h4 e7 g3 e8R a4 b6 g2 c6 Bd7 c7 Nh6 c8B Be6 b5 Bd6 c5 Bb3 c6 Qg5 c7 Bf7 b7 Be6 b6 Qf4 Na3 Be7 Bb2 Ba2 Bc3 Nf7 f6+ Kh6 g7 Bc4 g8R Ng5 f7 Nd7 f8R Qh2 b8R Bc5 b7 Bd5 Nc2 Qf4 Ne2 g1Q Nc1 Qf7 Nd3 Be4 Rg7 Bd6 Nc5 Nb6 Na6 Bg6 Rh2 Ne6 Rg2 f2+ Kd2 Qh2 Be2 f1B Bh5 Bfd3 Qh1 Nd8 Kd1 Nc6 Re6 Qg8 Rff2 Qh7 Ra2 Bf5 Na1 Bb1 Ra8 a3 Rae2 Qf4 Ree7 Qf3 Rd7 Qf8 e6 Bf4 Rd5 Qd6 Nc5 Qf8 Ra4 Bg3 Na6 Qc5 Bd7 Be5 c8Q Bc7 Qe8 Nc8 Qg8 N8a7 Bc8 Bgf5 Re7 Bfe4 Qg4 Bg6 Rg7
2B2k1n/PQRnRP1p/Q4q2/2N3rB/1pq2p1B/2BRn2K/3Br2B/7N b - - 0 1 illegal: No proof kernel
1q4r1/1R2B3/NBN4p/4Q2K/4R1Pn/1P1NpR2/1pp2Nb1/RBkqnR2 b - - 0 1 legal: proof: e4 a5 b4 g5 h4 f5 hxg5 d5 exf5 a4 c4 Kd7 cxd5 Ke8 Bd3 b5 Be2 Bg7 Bf1 Bd4 Ke2 Bb6 Ke1 Ba5 bxa5 Ra6 Na3 Ra7 Nb1 Ra8 Bd3 b4 Qf3 b3 Qd1 b2 Bf1 Ra7 Rh6 Rb7 Rh1 Rb3 axb3 Kf8 Bd3 Kf7 Bf1 Ke8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 f4 Kd4 a6 e5 a7 c5 a8N c4 d6 h6 g6 c3 d7 a3 g7 a2 f6 e4 f7 Qf6 f8R Qe7 f5 Nc6 d8B Ne5+ Kh5 Ba6 g4 Qb4 f6 Qa4 f7 Nc4 Qe1 Ne5 Nc7 Nd3 Be7 Qa3 Re8 Nf2 f8R Rh7 Rf3 Qa4 Nh3 Qd7 Na3 Qc6 Nc4 Qc5+ Ne5 Bc4 Bd3 Qb6 Bb1 Rh8 Rf1 Qb8 Na6 Nd3 Nf2 Bd5 Qe2 Ne1 Ned3 Qg3 Rb8 Qc7 Rb7 Qb8 Bh4 Ne7 g8R Bc6 Re8 Nf5 Be7 Rg8 Ne5 Kd5 d4 Nh4 Bcg5 e3 Qb5+ Ke6 Ned3 Be4 Bc5+ Kd5 Bge7 Nc2 Rf6 Bg2 Rf3 Ne1 Qa5 Rf8 Qc7 Rh8 Bb6 Rg8 Nh3 Ke4 d5 Rf8 d6 Rg8 Ba5 Kd4 d7 Ke4 d8N Kd4 Bc2 Ke4 Nhf2+ Kd4 Rc1 a1Q Bb1 c2 Rd1 Rg7 Qg3 Rg8 Bb6+ Kc3 Rc1 Kd2 Nc6 Qa5+ Qe5 Qd5 Ba2 Qdd8 Ra1 Qd4 Bb1 Qdd6 Ref8 Qd7 R8f4 Qdd8 Ndc5 Kc1 Re4 Qd1 Ncd3+
2k3BB/r3p2p/p3R3/2K2RpB/4r1PP/1B1pN2B/QNpBp3/1Q1Q2n1 b - - 0 1 illegal: Other
2R1q1nR/2rq1r2/3nN2n/bN1KRR2/4BR2/1k2rP2/4bqQP/3RBBQ1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 a5 Kd4 e5+ Kc4 g5 b4 g4 b6 g3 f3 e4 b7 e3 f6 Ke6 b5 g2 h6 e2 h7 e1Q b6 a4 f7 a3 c6 a2 c7 Bb4 f8R Nh6 Rf5 Ba5 Bd2 Re8 h8R Ra7 Na3 Nc6 b8Q Ne7 b7 Neg8 Nh3 g1Q Nb5 Qgf2 c3 Qee3 Be1 d6 Qd2 Qd7 Rd1 a1R Qc2 Rc1 Nf4+ Ke7 Rd4 d5+ Kc5 Qe5 c4 Qee3 Qa8 Qee2 b8R Ba6 c8R Rb7 Nh5 Ke6 Qa7 Re7 Rg1 Rf7 Qb2 Rc3 Ra8 Re3 Rdf4 d4 Ng7+ Ke7 Qb6 d3 Ne6 d2 Qg7 d1N Qg2 Nb2 Qa7 Qe8 Kd5 Rc7 c5 Nc4 c6 Nd6 Qd4 Qd7 Re5 Rb7 c7 Ra7 Rf8 Rb7 c8B Rc7 Na3 Bb5 Bb7 Ba6 Rac8 Qeb5+ Qc5 Qbc6+ Kd4 Be2 Nb5 Qe8 Qc1 Kd7 Ba8 Qb7 Qb1 Kc6 Qbg6 Kb6 Rh1 Qa7 Be4 Qb7 Qg1 Qbc6 Q6g2 Qcd7 Kd5 Ka6 Na3 Kb6 Nb1 Kb5 Na3+ Ka4 Nb5 Kb3 Rff5 Re7 Rf4 Rg7 R8f5 Rf7 Bb4 Bd1 Bc4+ Ka4 Q1f1 Qb2 Bcd3 Kb3 Qff2 Bc2 Rd1 Qa2 Bf1 Bd3 Qfg1 Qf2 Bc3 Be2 Be1
Q3Rq1r/1Q1KRB1n/5N2/5r1N/R2n4/r2nPbBP/1q1Nq3/3RRRbk b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 Ke4 g5 b4 a5 d4 a4 e6 Kf6 d6 g4 Kd5 Kf5 h3 c4 e7 c3 e8R g3 d7 g2 b6 a3 b5 f6 b7 c2 b6 a2 h6 Ra3 h7 Qc7 d8R Ra7 Bf4 c1N e3 Ra4 Ne2 g1R Rd7 Bd6 Bg3 Qc2 Nf4 Qe2 Qb3 Nc6 b8N Bb7 Rde7 Ra3 Nh5 Nd3 Nd2 Bc7 Rb1 a1Q Nd7 Qb2 Re1 Rg2 Qa4 Rf2 Qa8 Kg5 Ke6 f5 d5 f4 d6 f3 Ndf6 Nd4+ Kd7 Bd5 Be5 Kh4 b7 Be4 b8Q Bb7 Nf4 Kg3 Qc8 Bd5 Qcb7 Bb8 Rg1+ Kh2 Rg4 Kh1 N4h5 Be4 Bg3 Bc6+ Kc8 Bd5 d7 Bd6 d8R Bb8 Bh4 Bh2 Bg3 Bg1 Rf8 Nc2 Ra4 Nd4 Ne8 Nf6 Kc7 Rg8 h8R Nh7 Rf4 Rf8 Kd7 Rf5 Rg8 Rg2 Rh8 f2 Nef6 Be4 Rhe8 Bf3 Bh2 Rg8 Bg3 Qd1 Be2 Rh8 Bf1 Qdc2 Be2 f1Q Bd1 Qc5 Bb3 Qe2 Bf7 Bg2 Rff1 Bf3 Rc8 Qcb4 Rcc1 Qc5 Rcd1 Qcb4 Re4 Qf8 R4e7
1b2Q3/b2qnB1Q/3N1R2/2qB1PnP/R1B1B2K/3b2n1/NQ1B1rr1/1Brk4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 h4 Kf7 c4 Kf6 f4 g5 Kf2 b5 Kg3 e5 a4 d5 a6 e4 a7 d4 a5 e3 a6 b4 h6 b3 h5 e2 c6 e1R c7 b2 h7 g4 c5 d3 c6 d2 Bc4 Bg7 Qc2 d1N Nc3 b1Q Qb2 Nd7 Nge2 Ne3 Bd2 Ne7 Nc1 Nf8 N1a2 Rg8 h8Q Qc2 Qh7 Qd7 Kh4 g3 Rf1 g2 Nb5+ Qc3 Bf7 g1B Nd6 Ne6 Rf3 Rb8 a8B Ng5 a7 Ba6 c8B Bd3 c7 Nf1 Bad5 Rc1 a8B Ba7 Ba6 Rbf8 c8B Ng3 Bac4 Qe5 Be4 Bh6 Bad5 Qd4 Qb5 Qc5 Qb2+ Rc3 Bfe6 Bb8 B8a6 Qca7 Bcb5 Ne2 Nc1 Bb1 Ra4 Nh3 Na2 Rg5 Bbd3 Bg7 Bac4 Ng8 Bc2 Rf7 Bed3 Rg2 Rf2 Ng3 Rf3 Re7 Re3 Ng5 Re5 Qd4 Bd1 Rc1 B1f3 Qg1 Bde2 Be4 Bed3 Re8 Bb1 Bd3 Bf7 Bh8 Bg6 Qb6 Re7+ Qd4 Rg7 Ree2 Re7 Bg7 Re8 Ref2 Rf8+ Ke7 Ba8 Qd5 f6+ Ke6 f7 Ne7 Qb3 Bd4 f5+ Ke5 Be4 Bda7 Qb7 Qc5 Qb2+ Rc3 Bad5 Kd4 Be1 Ke3 Bd2+ Ke2 Re8 Rc1 f8Q Kd1 Bgf7 Ng8 Re6 Ne7 Rf6 Qdc6 Qc8 Qd7 Qe8
2r1N1BQ/1N1NB1Rb/nB1q2rR/B1q1P1b1/n1k2Q2/6BK/1B1b2P1/1q2n3 b - - 0 1 illegal: No possible last move
r1BBR1n1/1qR2P1K/1nB4b/7k/bP4R1/rr2N1R1/B1Qq3N/2n1b1NR b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 c5 Ke4 h5 b4 e5 g4 a5 d4 c4 f4 a4 b6 a3 b7 a2 g6+ Kf6 g7 h4 g5+ Kf7 f6 Kg6 f5+ Kf7 d6 c3 d7 h3 d5 h2 d6 c2 Ba6 Ra7 Nc3 Ra8 Nd5 Rh3 Ne3 Qc7 d8N+ Ke8 g6 Nh6 g8B Be7 f7+ Kf8 d7 Kg7 f8R Qd6 f6+ Kh8 Bd5+ Ng8 Kf5 e4 g7+ Kh7 Bc6 Kh6 Ne6 Qd3 d8R Qa3 Rde8 Bd7 Rf7 Bd6 Bb2 c1N Qc2 Bf4 Bd4 Rh4 Bb6 Qc3 Bd8 Qd2 Rb1 a1R Rb3 Kh5 Rd3 Bc8 Rc7 Nd7 b8R Bh6 Nd4 Ra3 Ndf3 Rh3 Rb5 Bb7 Rc5 Nb6 Rc4 Rb8 Rb3 Ba8 Bc8 Rg3 Nd1 e3 Rg4 e2 Ne3 e1B f7 Nf6 g8B Rh3 Bh7 Ng8 B6d7 Bd5 Bc6 Rba8 Rd3 Bb3 Rc3 Ne7+ Kf6 Rg3 Bhe4 Ba4 Bed5 Bf4 Kg7 Bh6+ Kh7 Ng8 Ba2 Rh3 Rcc4 Rb3 Rg3 Ra3 Ne2 Rb3 Rcg4 Ra3 Rhg1 h1Q Nh2 Qf3 Rh1 Rb3 B6d7 Qb7 Bc6 Ra3 Ng1 Rb3 Rg2 Rf3 R2g3 Ra3 Nef1 Rfb3 Ne3
1r3q1k/1RRRRP2/3Rn1B1/bq1n2PR/1q3B1K/3b1Q2/4N1r1/1r1BN1nQ b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 Kg7 f4 h5 Kf2 e5 Kg3 a5 d4 c5 f6+ Kh7 f5 a4 b6 a3 b5 e4 b7 a2 f7 c4 f6 e3 d6 e2 d5 e1N d7 c3 b6 c2 d6 Nf3 Na3 Ra7 Bf4 c1R Be2 Bg7 f8Q Na6 b8R Qc7 d8R Rc2 d7 Qc3 b7 Ne7 Rc1 a1Q f7 Rd2 Nc2 Qb1 Ne1 Qcb4 Rc7 h4+ Kh3 Rg8 g6+ Kh8 g5 Bc3 Rh2 Nc5 g7+ Kh7 Qc1 Ne6 Bd1 Ra1 Ne2 Nd5 Qe8 Rf8 g8B+ Kh8 Bh7 Ng1+ Kg4 h3 Kh4 Rc2 Ra8 Rg8 b8R Ba6 Rbb7 Bd3 Raa7 Rb2 Rh1 h2 Qe3 Qb5 Qf3 Ba5 Qf8 Rc2 Qh6 Q1b4 Re8 Rca2 d8R Rb1 Ree7 Rab2 Rdd7 Rb8 Ra6 Rd2 Rad6 Rc2 Nc3 Rg2 Ne2 Nh3 Rg1 h1Q Rf1 Qg1 Qhh5 Qgc5 Rh1 Ng1 Rh3 Rh2 Qh1 Rf2 Q5f3 Rh2 Kg3 Rf2 Rh5 Rg2+ Kh4 Re8 Ra7 Rb8 Rcb7 Qc8 Rbc7 Qe8 Rab7 Qf8 Bg6+
Qbn1bK1n/r1q1P1R1/2R2N1R/5R1r/3b2BR/N1Bk4/Q1PB2n1/R2q2q1 b - - 0 1 illegal: Other
1N4bN/2r2kn1/q1B1R2r/R3Kn2/3N1BPN/1Nrr1Q1B/1b1P3R/R5rn b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 h5 Kf3 c5 Ke4 e5 f4 a5 b4 a4 g4 a3 f6 a2 f5 c4 b6 c3 f7+ Ke7 b5 h4 g6 h3 d6+ Kf6 g7 c2 d7 h2 b7 Qb6 d8R Qe6 b6 Ke7 Bb2 c1N Rd6 Rh7 Bh3 Ra3 Nf3 Na6 b8R Nc7 b7 Rc3 Nh4 Nd3 Ra8 Ne8 b8N Nh6 g8B Bg7 f8N Qg6 Na3 Nf2+ Kd5 e4 Nb5 e3 Qf3 e2 Nfd7 e1R Ra5 Ree3 Nc5 Red3+ Nd4 Be5 Rb6 Ng7 f6+ Ke8 Rba6 Nhf5 f7+ Ke7 f8N Be6+ Kc6 Qh6 Nfg6+ Kf6 Bf7 Bb3 Be8 Bg8 Bd7 Kf7 Kd5 Bf6 Bc6 Be5 Rag1 a1R Nb3 Rf1 Rg2 Rg1 Ba3 Bf6 Bd6 Be5 Nf8 Qf6 Nfg6 Rh6 Rb6 Rgc1 Rf1 h1R Rh2 Rg1 Re1 R1c2 Rea1 Nh1 Bc7 Qe6+ Ke4 Qc8 Kd5 Bf6 Bf4 Qa6 Ke4 Be7 Ke5 Ba3 Bb5 Rcc1 Re6 Bb2 Ba4 Rc7 Bc6 Rcc3 Nh8+
3R3Q/2Nkn2Q/5BR1/n1R2R2/rqQn1PR1/1b1r1r1n/P1Rn1b1N/1BK5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 e5 d4 c5 Kd2 g5 f4 b5 f6 g4 a6 c4 d6 e4 h6 g3 f7+ Kd7 d5 g2 a7 b4 h7 b3 h5 b2 h6 Qh4 Bd3 Kd8 d7 Bd6 f8R+ Ke7 d8R Qf2+ Qe2 Nc6 Rh4 Qc5 Rf5 Nd4 Nc3 Be6 Rg4 Qb4 Bb1 Bc5 Rc8 Kd7 d6 Ne7 Nf3 g1N Nh2 Rd8 h8Q Nh3 h7 e3+ Kd1 Bd5 Nb5 c3 Nc7 Bb3+ Qc2 Bb6 Qg8 Bc5 h8Q Bb6 Qgh7 e2+ Ke1 Bc5 Qd3 Bb6 Qc4 c2+ Bd2 c1N Bc3 Bc5 Kd2 e1R Rg6 Re4 Rg4 Rb8 a8R Re3 Ra5 Rf3 Rg6 Ra8 Rb5 Bb6 Rbc5 Ra4 Rg4 Nc6 Rg6 Ne2 Rg4 Ned4 Rg6 Nc2 Kd1 Na5 Bf6 Rg8 Rg4 Rg5 Rg8 Ba7 Rg6 Nd4+ Bc2 b1N Kc1 Nd2 Rb1 Bb6 Rb2 Rh5 Bb1 Rd3 Rc2 Rg5 Rh4 Rgg3 Rhg4 Rgf3 Nd5 Ke6 d7 Kd6 d8R+ Ke6 Rb8 Kd7 Nc7 Ndc6 Rb5 Bf2 Rbc5 Nd4 Rd8#
1rBr4/b4KB1/k3R1R1/r3rRN1/2Pq1N1N/1nb1N3/5P2/BbnBN1Qr b - - 0 1 illegal: No possible last move
1Q1BN3/4N1N1/1R2b1NK/q2r4/1PN2QBP/r2kN1b1/RBr2rbr/5nn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 Kf4 f5 Kg5 a5 b4 g6 d4 c4 e4 f4 e6 Kd6+ e7 f3 b6 c3 h6 a4 h7 f2 b7 c2 Be2 f1B Nh3 a3 Nf4 a2 Bb2 c1R Na3 Rc2 Qc1 Nh6 Bg4 Nf5 Ng2 Ng3 Ne3 Nd7 b8Q+ Qc7 Qd2 Bg2 h4 Ne5 Rhf1 Ra5 Rf6+ Be6 Qc1 Rg8 h8N Nf1 Qd2 Rg7 Kh6 g5 Ng6 Nf3 Qf2 Ng1 e8N+ Kd7 d6 Kc6 d7 Rf7+ Ng7 Bd6 d8B Rd5 e5 Qa5 Qf4 Bc7 Bh5 g4 Nac4 g3 Bg4 Rf8 Re1 a1R Re2 Bd6 Rd2 Ra3 Rf2 Bf7 e6 Be5 e7+ Be6 e8N Bc7 Qa8+ Kb5 Qb7+ Ka4 Qb8 Kb3 Rf7 Bd6 Rb7 Rf7 Rb6 Be5 Bc1 Kc3 Bb2+ Kd3 Re2 Rc5 d5 Bd6 Qg5 Rf2 Qf4 Bc7 d6 Rd5 d7 Nh3 Re1 Bh1 Bdf6 g2 d8N g1R Qe5 Bf3 Ra1 Bg2 Nc6 Rh1 Bd8 Ng1 Ra2 Rh2 Nce7 Bd6 Qf6 Bg3 Qff4
2n1bqQ1/4rQb1/B2B4/kNN1P3/1BQ1bb1r/3Q2n1/R1K1P3/rQ1RQ1b1 b - - 0 1 illegal: No possible last move, all moves rejected
Bb1BnRB1/rn3B2/r1P3rR/1K5B/4qr2/1bk1nP2/1NQ1Q3/1BN3Qr b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Kc3 d5 Kb4 h5 a4 b5 g4 e5 c4 h4 g6+ Kf6 a6 h3 g7 d4 g5+ Ke7 c6 Kd6 c7 e4 a5 Ke5+ c5 e3 a7 d3 a6 Kd4 f3 d2 f6 h2 g6 e2 f7 e1N Bc4 Bd7 c8B Qe7 Nc3 Bf5 Na4 Rh7 Nb2 Bc2 Bg4 Ng2 Bh5 Nf6 g8Q Nbd7 g7 Qe4 Ra5 Be7 f8Q Ne3 Qe8 Bb3 Bcf7 Bd6 Qe7 Rf8 a8B Bb8 a7 Ne8 Bb7 Rh6 a8B Rg6 c6 Nc5 Bc8 Nb7 Bf5 Qh4 Bb1 Qe4 Bd5 Rf5 Bf7 Rf4 Ra7 Nc5 Ka5 b4 Kb5 Kc3 Rd7 Nb7 Rd8 Nf6 Rf8 Ne8 Qe2 d1R Qd8 Rf1 Qdd1 Re1 Nh3 Reg1 Nf2 R1g2 Nfd3 R2g5+ Ka6 Ra5+ Kb6 Ra7 Kb5 Nc2 Be3 Ra6 Bb6 Ne3 Bd8 Ra7 Rg1 h1R Rg2 Ba2 Nc1 b3 Rh2 Ra6 Qh7 Ra7 g8B Ra6 Nbd3 b2 Rh4 Bb3 Qg7+ Rgf6 Qgg1 Rg6 Ba2 b1R Nb2 Ra1 Bb1 Qc2 Bg4 R1a3 Rh6 Qe4 Bh5 R3a4 Ncd3 Ra7 Nc1 R4a6 Qdc2+
Q1R4B/2b1B3/BbQrb1K1/7r/r2Nn2q/B3Pk2/1P2N1R1/nR1B1nBb b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 Ke4 g5 Kf5 a5 h4 g4 d4 a4 e6+ Kd6 b6 c4 h6 c3 b7 g3 h7 c2 h5 g2 h6 f6 Nf3 g1B Be3 c1R Qc2 a3 Rh2 a2 Kg6 f5 e7 f4 e8B Nf6 Nc3 Ng8 Rg2 Nf6 Ba4 Be6 Rb1 Nbd7 b8R a1N Rc8 Nh5 Bf2 Rd1 e3 Bh2 Ba6 Nc5 Bg1 Qh4 Ne2 Ne4 Bb3 Nhg3 Qc6+ Ke7 Bc2 Nf1 Bb3 Rd2 Bd1 Bg3 Bb5 Ra4 Ba6 Bg4 d6+ Ke6 d7+ Bd6 Qc7 Kd5 d8B Be6 Be7 Bc5 Bd6 Bb6 Ba3 Nd6 Qd7 Ke4 d5 Bh2 Nfd4 f3 Qb7 f2 Qc6 Bg3 Nb5 Kf3 Nbd4+ Kg4 Nc2 Rd3 Ncd4 Ne4 d6 Rd2 d7 Rd3 Nc2 Kf3 d8B Bgc7 Bg5 Rd6 Be7 Rf8 h8B Rf5 h7 Rh5 Bhf6 Ng3 h8Q f1B Rh2 Bfh3 Rg2 Nf1 Qhe8 Bhg4 Bh8 Bh3 Qa8 Bhg4 Qec6 Bh3 Rg5 Bg2 Rg4 Bh1 Rg5 Ra5 Rg2 Ra4 Ncd4+
2K1R1rN/1N1N1N2/4Rq1R/r1b1n2k/1BbPrB2/4R2B/bbnP3Q/3N2n1 b - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 b5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 Ke2 Kf7 Ke3 e5 Ke4 c5 g4 h5 f4 a5 b4 a4 b6 c4 b7 h4 b5 c3 b6 a3 g6+ Kf6 g5+ Kg7 Qe2 c2 Rh3 a2 Nf3 Qc7 Kd5 e4 Ba3 c1R Nc3 e3 Nd1 Rc2 Ne5 Rh7 f6+ Kh8 f5 Rf7 g7+ Kh7 g6+ Kh6 Bb4 Ra6 Qh2 e2 Re3 e1N Bh3 Rd7+ Ke6 Nf3 f7 Kh5 f6 Nh6 g8R Bc5 f8N Ra5 f7 Na6 b8B Ng4 g7 Ng1 b7 Qd8 Nfg6 Rc1 Nd3 Ne5 f8N Rc7+ Nd7 Qf6+ Kd5 Rc6 Nh8 Re6 Re8 Rc3 g8N Rca3 Rc1 a1B Nh6 Bb2 N6f7 Ra1 Rg8 Re8 Rg6 Rg8 Bc7 Rb1 b8R Rba1 Bg2 h3 Rb6 Rb1 Re6 Rba1 Qf4 h2 Bh3 Rb1 Qf2 h1B+ Qg2 Nef3 Bf4 Ne5 Rc3 Rba1 Re4 Rc1 Qh2 Bg2 Re8 Bf1 Ra3 Nef3 R4e6 Ne5 Ne3 Re1 Nd1 Re4 Rb3 Ba7+ N3c5 Bc4+ Kd6 Bb7 Ra3 Bbd5 Nb7 Ba2 Re3 Bdc4 Ba3 Nb4 Kc7 Bb6+ Kc8 Nc2 Bb4 Bc5 Rh6+
1bq2nQ1/1B4Kb/Bnr2nPB/3B4/B1nRPB2/8/k1Nb2r1/1QRQ2Nr b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 f5+ Kd4 a5 g4 d5 b4 h5 c4 h4 g6 h3 g7 h2 g5 f4 b6 a4 c6 f3 b7 a3 c5 f2 c7 a2 b5 Nd7 b8Q Bd6 c6 Ngf6 b6 Ra6 b7 Nf8 Bg2 f1N Na3 Nd2 Nc2 Nc4 g6 Nb6 Rb1 a1B+ Rb2 Bb4 Bh6 Bd2 e3 Bd7 c8B Rh7 g8Q+ Rf7 Kd3 d4 c7 Qe8 Rb4 Bac3 Nf3 Kd5 e6 Qd8 e7 Be6 Rf1 h1R e8B Ra2 Bb5 Rd7 Rc4 Rd6 Ba4 Rc6 Rb4 Kc5 Ng1 Bd5 Be6 Qc8 e4 Bb3 Bd5 Bf4 Bh3 Bcd2 Bhe6 Be5 Bc4 Rb2 Bed5 Ba2 Ba6 Bh2 Ke2 d3+ Kf3 Bd6 Rd4 Bc4 Ne3 Kb4 Re1 Ka3 Nc2+ Ka2 Rf1 Nf6d7 Kg4 Bg3 Kf5 Bb3 Bf4 Nf6+ Kg5 Bh2 Kh6 Ng4+ Kg7 Re6 Qc1 Nbd7 Qh8 Be3 Bh6 d2 Na1 d1N Bdc6 Rg2 Nc2 Ngf6 Qd2 Nb2 Rc1 Bg5 Qd1 Bd2 Qh7 Rd6 Qh8 Be6 Bd5+ Nc4 Qh7 Bg8 Qh8 Qe8 c8B Bh7 Qg8 Qd8 Qc7 Rc6 b8B Qe8 Bcb7 Qc8 Qb6 Bhf4 Qb5 Nb6 Bc7 Bfe3 Bh2 Bf4 Qb4 Be5 B2f4 Bb8 Qb1#
K5Rr/1Pb5/3N1RNn/2R2rB1/3nNP1r/3qbb1B/Bn3RQN/1Nkb4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 b4+ Kb6 g4 h5 d4 c5 d6 a5 Kd5 e5 f6 a4 g6 h4 g7 e4 f7 a3 d7 e3 g5 a2 g6 h3 Nf3 h2 Qd2 e2 Bh3 e1B Rf1 Qf6 d8R h1B Rd6+ Kb7 b6 Ka6 b7+ Nc6 b8N+ Kb5 Na6 Ka4 b5 Kb3 b6 Be7 f8N Qf4 Rf6 Nh6 g8B c4 g7 c3 Ng6 c2 b7 Bd8 Kc5+ Be6 d5 Qf5 Nh2 Qd3 d6 Nd4 d7 Bc7 d8N Bf3 Nf7 Rf8 Nd6 Bc4 Qg5 Bd2 Qg2 Be3 Bf7 Bd1 g8R Bd5 Bd2 Kb2 f3 c1N Rf2 Bb8 Kb6 Bc7+ Ka7 Be4 Nc5 Bc6 f4 Bcf3 Nce4 Kc2 Bd5 Rf7 Ka8 Kb2 Re6 Rf5 Rf6 Kc2 Nbc3 Kb2 Rb1+ Kc2 Rb5 a1R+ Ba2 Rb1 Rc5 Rb5 Qg3 Rh5 Qg2 Rh4 Nb1+ Kb2 Rg5 Rf5 Ba5+ Qe2 Bc4 Nd3 Ba2 Kc1 Be1 Nb2 Ba5 Bb8 Bd8 Bc7 Rh5 Rb5 Rc5+ Qc2 Rc3 Rf5 Rc5 Qc4 Re6 Qc2 Bg5 Qc4 Rf6 Qc2 Bc4 Qd3 Ba2+
6RR/2nN2bq/b1N3b1/4r1B1/3NP1Bb/k2qBQ1K/3N1r1P/R1R1nR1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg3 d5 b4 f5 e4 a5 c4 g5 e6 g4 b6 a4 h6 f4+ Kh4 d4 c6 Kd6+ e7 a3 b5 Kc5 b7 Kb4 c7 d3 b6 g3 h7 d2 c5 f3 c6 f2 Bb2 a2 Qe1 g2 Be2 f1B Bc1 Ra5 Qd1 Na6 b8B Bg7 b7 Re5 Bg4 Qd3 e8N Nf6 Qf3 d1B Ne2 g1Q Be3 Rf8 h8R Nd7 Nd2 Ka3 Rb1 a1B Nf6 Bg2 Nd4 Ndc5 Nd7 Bb3 Ba7 Bf7 b8N Bg6 Bg5 Qge3 Rhe1 Bh1 Kh3 Bb7 c8R Nc7 Rec1 Ba6 Rf1 Qf4 Rd8 Qf5 Bb6 Rf7 Rdg8 Bf6 Be3 Bh4 Bg5 Rf8 Ba7 Qf7 Bb6 Qh7 Ba7 Nd5 c7 Bc3 c8R Nc7 Nbc6 Rf4 Qe3 Rf2 Qg3 Nb3 Qf3 Na1 Rbc1 Nc2 Rb8 Ne1 Rbb1 Na8 Ne2 Nc7 Bae3 Bb4 Ned4 Bf8 Rc4 Bh6 Rcc1 Bg7 Ra1+
2rq1BK1/n1B5/r1QR1b1r/3n1P2/QPBrN2B/8/bNk2qRr/B1BR4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 b4 e5 d4 a5 h4 g5 h6 c5 h5 g4 h7 g3 b6 a4 d6 a3 d7 a2 d5 g2 h6 Ra6 b7 Ra5 f6 Bd6 f5 Qe7 d8B Nc6 b8B Na7 f7 Nf6 f8B Bc7 d6 Nd5 d7 Ra6 Nf3 g1Q Qa4 Qf2 Na3 Bb6 Bdc7 Qd8 Nd2+ Ke3 Be2 e4 Rg1 Ba5 Rb1 a1R Rg2 Ra2 Bg3 Bc7 Bh4 Be5 Bc7 Bf6 Bf1 Rg8 h8Q Rg6 h7 Rh6 Qg8 Bb7 h8B Rc2+ Kb3 Rc4 Qe6 Rd4 Qec6 c4+ Ka2 c3 Kb3 c2 Bc4 Qa8 d8R Bc8 Qd6 Be6 Qdc6 Bg8 Rd6 Qd8 Bb5 Be6 Nac4+ Kd3 Ra1 e3 Ne4 e2 Bhg7 e1R Bh8 Qd2 Nb2+ Ke3 Bhg7 Rh1 Bc4 Rh2 Bf1 Rd3+ Kc4 Rd4+ Kc5 Nf4 Rb1 Ba2 Bc4 Nd5 Rd7 Rd3 Kd6 Kd4 Ke6 Qf2 Kf7 Rd2 Nc5 Kc3 Rd6 Rd1 Kg8 Rd4 Bf4 c1R Bfg5 Re1 Rd1 Re5 Bc1 Re8 Qa5 Kc2 Ne4 Re7 Qab5 Re8 Qa4+ Bb3 Nc5 Qb8 Rd7 Rde4 Bd2 Be7 Rd6 Qc8 Be5 Bf6 Nbd3 Rf4 Bec3 Rd4 Bc1 Qd7 B3b2 Rc8 Ba1 Qe7 Nb2 Qd8 Qa3 Ba2 Ne4 Ra8 Qa5 Rc8 Qaa4+
2R2bN1/k3b1RQ/q3Bb2/P2n2N1/2qr1B2/Pr1RR2B/7B/K1b1nbRN b - - 0 1 illegal: No proof kernel
1q1RRKbB/Bn2P1n1/Q1Nqr3/5Q2/1b1Pr3/n4B1N/3RBnnk/5B1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 c4 b4 a4 g4 a3 e6+ Kd6 e5+ Kc7 d6+ Kb7 b6 Kc6 b7 Kd5 d7 a2 b5 f6 Kg6 Ke4 Kf7 Kf4 b6 Kg3 g6 f5 g5 f4 e7 c3 e8B f3 g7 c2 g6 f2 e6 h4 e7 h3 Na3 h2 Nb5 Ra7 Qh5 Rh6 Nd4 Nc6 Qf5 Ra4 Bb2 c1Q Nh3 Nf6 g8B Qc5 b8B+ Qd6 b7 Na5 g7 Nh5 Rd1 a1N Nc6 Re6 Ba7 Nc2 b8Q Rae4 Qb6 Nb7 Qa6 Na3 d3 Q8c7 d8R Qb8 Rd2 Bd7 Be2 f1N Be5+ Kg2 d4 Ne3 Bh7 Bc8 g8B Bh6 Bh8 Ng7 Kf8 Bf4 Rc1 h1N B8h5 Kh2 Bhf3 Ng2 Bf7 Bh6 B7h5 Bd7 Bf1 Nf2 B3e2 Be8 Bhf3 Bf7 Rc5 Bg5 Rd5 Bg8 Re8 Qc5 Rdd8 Qcd6 Rd3 Bc1 Rd2 Bb2 Bg6 Bc3 Bf7 Bb4 B7h5 Ne3 Bh1 Ng2 Bhf3
R2n1QNN/2n1P2B/1BQ2b1n/1PB3q1/k5NR/2qb1K2/1nrBn1r1/4B2B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 b4 g5 e4 c5 d4 a5 h4 f5 e6+ Kd6 e5+ Kc7 e7 Kb6 e8B c4 d6 f4 h6 g4 d5 f3 e6 a4 h7 a3 h5 a2 h6 c3 d7 c2 d6 Nc6 e7 Na5 Bg2 Ra6 Bg6 Nb7 Qd5 Qe8 Nc3 Ra3 Nh3 Nd8 Ne4 Rc3 Nf6 Ba6 Bd2 c1N Be4 Qh5 Qc6+ Ka7 Kg3 Qg5 Nf2 Rc2 Rh4 Bg7 Bh1 Nd3 Bf5 Nb2 b6+ Kb8 b7 Bd3 b5 Ka7 Qd5 Kb6 b8B Nd1 Qa8 Nb2 Qb7+ Kc5 Ba7+ Kc4 Bg6 Kb3 Qc6 Ka3 Bc5+ Ka4 Nd1 f2 Ne3 f1N+ Kf2 Rc4 Bge4 g3+ Kf3 g2 Neg4 Ne3 Bg6 Ne6 d8B Nd5 d7 Rc2 B8a5 Nd8 Be1 Nc7 Bad2 Nf7 d8B g1N+ Kg3 Ne2+ Kf3 Ne8 Bdb6 Nc7 Rb1 a1Q Rc1 Qa3 Ra1 Nd8 Bf5 Kb3 Ra2 Qb4 Ra8 Qc3 Nh5 Nf6 Be4 Rf8 h8Q Ng8+ Nhf6 Re8 h7 Nh6 Ng8 Bf6 Qg7 Rf8 h8N Re8 Rb8 Ka4 Bh7 Rf8 Rc8 Rf7 Qf8 Rg7 Rb8 Qge5 Nh2+ Rg4 Rc8 Qg5 Rb8 Qd4 Rc8 Rg2 Ng4 Qc3 Ra8+
nBK2Qq1/BPbR4/2Nkr2N/1q1B3q/1q1qB2R/2r4P/4RNb1/1B1N3n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kf3 c5 Kg4 g5 Kf5 a5 b4 f6 d4 a4 e4 a3 b6 g4 h6 g3 e6+ Kd6 b5 a2 e5+ Ke7 h7 g2 d6+ Ke8 b7 c4 d5 c3 d7+ Ke7 Bd3 c2 Qf1 Nc6 b8B Bg7 b6 Bb7 d6+ Kf8 e7+ Kf7 e8B+ Kf8 Ke6 f5 Be3 c1Q Nc3 f4 Nh3 g1Q Beg6 Qh4 d8N f3 Kd7 f2 e6 Nd4 Nf7 Qb2 Re1 a1Q Bb1 Nb5 Nd1 Be5 Bd4 Bc6+ Kc8 Ra6 b7 Qb4 d7 Ke7 d8N Nh6 Bda7 Nf5 Re3 Re8 h8R Ra3 Nh6 Ng3 Bf7 Be4 Rh7 Qad4 Rg7 Nc7 Bg8+ Kd6 e7 Rc3 Bd5 Bf3 Re4 Qh5 Rh4 Qg2 Rg1 Nh1 Bbe4 Qgg6 Rg2 Bf4 Bb1 Ke5 Bde4 Rf8 e8B Rf6 Re7+ Re6 B8c6 Qg8 Bcd5 Bg3 Qg1 f1Q Qf2 Qfd3 Qf1 Bf4 Re2 Bg2 Qf2 Bg3 Qf8 Qdb5 Nhf2 Qd6 h3 Na8+ Rc7 Qa3 Qe8 Qab4 Nc6+ Kf6 Re7 Bc7 Nd8 Ke5 Nc6+ Kd6 Qf8 Qdc4 Qe8 Qd3 Qf8 Qdd4 Rd7#
3K1RNq/B3NQ2/nN6/1nk2Br1/1b3RB1/NnPbrP2/2B3B1/2qr1Rn1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 e5 Kf3 Ke7 Kg4 d5 b4 a5 b6 h6 g6 a4 c6 Kd6 g7 d4 f3 e4 b7 d3 c3 d2 b5 a3 c7 e3 b6 e2 Rh4 e1N Qb3 d1N Be3 a2 Ne2 Qd7 Nf4 h5+ Kg5 Qe7+ f6 Qe8 g4 Bd7 c8B Qe4 f7 Bf5 Bg2 Bg6 Na3 Ra4 Bf5 Na6 b8N Ra5 b7 Qd4 Nd5 Nh6 g8B Nf2 Nc6 Kc5 b8N Ned3 Nb6 Nc1 Bh7 Rg8 Qe6 Nb3 Rf1 a1R Ne7 Rd1 Nbc6 Rb5 Bc2 Nf5 Qf6 Rg7 Ng8 Nd6 Nce7 Bd3+ Bg6 Rh7 Bf5 Nh3+ Kg6 Ng1 g5 Ra5 Rf4 h4 Qe6 h3 Qd7 Bg7 f8R Nb5 Kf7 h2 Ke8 h1Q g6 Rh5 Bf2 Rg5 Kd8 Qh8 Bg4 Qe3 Qf5+ Be5 Qf7 Bd6 g7 Re5 Nh6 Rg5 g8B Ra4 Bh7 Re4 Nhg8 Ree5 Rd4 Qc1 Bhf5 Re3 Ned5 Kc6 Rf4 Bb4 Nde7+ Kc5 Bh4 Rg6 Bf6 Rg5 Be5 Qh7 Bb8 Qh8 Ba7
5RRQ/1r6/NbkRR3/R2N1N2/2rRB1b1/1P4BP/n3q1bK/1nqQ2nn b - - 0 1 illegal: No possible last move, all moves rejected
2nK4/3R1b2/2NRqN2/QQrN1Nq1/3BB1nk/P1N2PNr/3rR3/2bn3r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 Kf6 Kg4 c5 d4 b5 h4 g5 h6 e5 h5 b4 h7 b3 a6 c4 a7 e4 d6 b2 h6 e3 a3 c3 d5 c2 d7 e2 f3 e1N d6 Ba6 Rh2 Nd3 Qe1 Qe7 d8N Nb4 d7 Bb7 Bd3 Ba6 Nc6 Qf7 d8R Nd5 Nc3 b1Q Rd6+ Qe6 Re2 Qa2 Be3 c1R Be4 Rc2 Rd1 Nd7 Bd4+ Ne5+ Kh5 Rc8 a8N g4 Nc7 Ne3 N7d5+ Kf7 Kg5 g3 f6 g2 Qd2 Qb3 Qd3 N5g4 Qb5 Qe7 Rd7 Ke6 Rd3 Qc5 f7 Ne7 Rd1 Bg7 f8N+ Kf7 Rd6 Rd2 Nd7 Rc7 Qa5 Bc4 Nf6 Nc8 Qb5 Ra2 Rdd2 Nd1 Rd3 Rd2 Kf5 Rd8 h8Q Rg8 h7 Bh6 Qa5 Bf4 Qb5 Rg6 Qd8 Rh6 h8N+ Kg7 Ke6 Rh3 Qe7+ Kh6 Qd8 Kg5 Nf7+ Kh4 Rd7 Qa2 Nd6 Bb3 Kf7 Bh6 Ke8 Bf4 Nb6 Qg5 Nbd5 Bc4 Na5 Rc5 Nc6 Be3 Qda5 Bb3 Kd8 Bf4 Nde7 Bf7 Ned5 Be3 Rf2 Bf4 Nge2 g1R Ng3 Rgh1 Re2 Qb3 Ndb4 Qe6 Nbd5 Ra2 Rdd2 Rc2 Rd3 Bc1 Rdd2 R3h2 Rd3 Rd2 Ndf5+ Kh3 Nb6 Rf1 Be5 Rg1 R3d6 Rgh1 Ne3 Kh4 Bd4 Rh3 Nbd5 Rf1 Qb8 Rg1 Qbb5 Rgh1 Nef5+
4qR1b/R1K1n2q/1Rb2B2/BNB1n3/B4bP1/rNrP3N/1r4Q1/1kBNr3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 h5 g4 a5 b4 e5 f4 a4 b6 h4 Kb5 h3 f6 Kg6 d6 h2 d7 e4 f5+ Kf7 b7 e3 Qc2 c4 Nh3 a3 Nc3 e2 Nd1 Bd6 g6+ Kf8 f7 Ke7 f8R e1Q g7 a2 f6+ Ke6 f7 Qdh4 Kb6 Kd5 d8B Kd4 b5 c3 Bf6+ Qe5 d3 Rh7 Be2 Nh6 g8N Bd7 Ne7 Ra3 Nc8 Bc6 Na7 Nf5 Bf3 Ne7 Qg2 c2 Be4 Na6 b8N Nb4 Nd7 Bb8 Rf1 h1R Nc5 Rh8 Bd5 Qh7 Bb3 Rg1 Rf2 Re1 Ba4 Rg8 Rb1 a1B Rb2 Bd6 Ra8 Rg5 f8B Rf5 Rf1 Rf2 Rb1 Be8 Kb7 Nbc6 b6 Rfe2 Bfg5 Qe6 Bf6+ Ne5 Rf3 Bb5 Rb2 Qef7 Rb1 Qe8 Nb3+ Kd5 Rb2 Bd7 Nb5 Bc6+ Ka7 Rd2 b7 Bb8+ Kb6 Rde2 Be3 c1R Ra7 Rc3 Bc1 Bd6 Rb1 Rb2 b8B N5g6 Bh8 Bf4 Bc7 Ne5 Bd8 Qg7 Kc7 Qh7 Na5 Kc5 Bf6 Kb4 Nb3 Rd2 Na5+ Rcb3 Kb8 Bg3 Bg5 Ng6+ Bf4 Bh8 Be5 Rf2 Nd6 Nd5 Rff7 Bf4 Bf6 Ne5 B8e7 Rc2 Rf8 Rc3 Rb2 Qd7 Bb6 Qe8+ Bed8 Ne7 Bd4 Qd7 B8b6 Qe8+ Kc7 Ra1 Bf2 Ka3 Rb1+ Ka2 Bfe3+ Rc2 Bec5 Rc3 Rb5 Rb2 Nb3 Kb1 Ba5 Raa2 Rb6 Ra3 Nb5
B3rRr1/b7/2B3bk/3n2NP/nn1RQ2K/1Q1P1r2/1Bq3NR/3BBBqn b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 g5 Kg3 b5 e4 f5 a4 Kf7 h4 Kg7 d3 c5 a6 g4 d6 b4 a7 c4 d7 c3 a5 b3 e6 c2 e5 b2 h6+ Kg6 h5+ Kh7 a6 Qc7 d8R f4+ Kh4 f3 e7 f2 e8B g3 e6 g2 e7 Bb7 Rd4 Bd5 Nh3 g1Q Nd2 b1N Nf3 Nc3 Rh2 Bf7 Bc6 Nf6 e8B Na4 Bb2 c1N Ne1 Rg8 Qb3 Nd5 Ng2 Ne2 Rd1 Ng3 Ng5+ Kh8 h7 Kg7 h8B+ Kh6 Be5 Nh1 Bg3 Bc5 Bed7 Bb6 Bg4 Bg6 Re1 Qc8 Re8 Bc5 Bd1 Qc7 Bb5 Nc6 Rf8 Ncb4 Bc6 Re8 a8Q Ba7 Qb7 Qc8 Qe7 Qc7 Qe4 Qc8 Bfe2 f1R Be1 Rf3 Bf1 Bb6 a7 Bc5 a8B Ba7 Bd7 Qc2 Bdc6
1q2r1q1/n2N1Nk1/R1Nb2rn/2nQP3/1NBQb2K/BP2r1n1/2N4Q/2N2R2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg3 c5 d4 f5 e4 Kf7 h4 a5 d6 a4 b3 c4 b6 a3 h6 g4 d5 c3 e6+ Kg6 h7 a2 h5+ Kg7 e5 c2 b7 Qa5 d7 f4+ Kh4 f3 d8N g3 e7 g2 e8Q f2 d6 Nd7 b8N Ra7 Na3 Qb5 Bc4 f1N Ne2 g1Q Qd5 Ng3 Ndc6 Bb7 Nb4 Nc5 d7 Bd6 d8N Nh6 Ndc6 Ra6 Qd8 Re8 h8N Ba8 Nd7 Qb8 Bb2 c1N Nf7 N1d3 Nac2 Qg2 Raf1 a1R Ba3 Re1 Nc1 Re3 Qd4 Qd5 Rh2 Qe6 Rhf2 Qg6 Rf6 Qh7 Qd5 Qg8 Qb6 Nce4 Qbd4 Nc3 Re6 Nb5 Ref6 Nc5 Re6 Ng4 Ref6 Na7 h6+ Kh7 Ng5+ Kh8 h7 Kg7 Nf7 Nh6 Na5 Bc7 Rb6 Bd6 Nac6 Bb7 h8Q+ Kg6 Ncd8 Ng4 Qh1 Bd5 Qh5+ Kg7 Qf5 Bc7 Qe6 Be4 Qed5 Nh6 Rbf6 Rb6 Qh2 Rc6 R6f3 Rg6 Rf6 Bd6 Re6 Bf8 Ra6 Bd6 Ndc6
2N3Bq/2b5/2KN1N2/rP2BNR1/R2rBRB1/1b2bnNk/1bP4q/nQ1r4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 b4 a4 g4 a3 f6 Kg6 c6 d6 c7 e4 b6 h3 b5 h2 f5+ Kf7 g6+ Ke8 f7+ Kd7 f6 e3 g7 e2 g5 e1B g6 a2 b7 Ba5 Be2 Nh6 g8B Na6 g7 Ng4 Bh7 Ne5 g8B Nc5 Nd2 Nb3 Be4 Bh6 f8R Be3 f7 Rh4 Bb2 Nf3 b8N+ Ke7 Bc3 Be6+ Kc6 d5 Be5 d4 Qb1 d3 Nc4 d2 Nd7 d1R Nf6 Bab6 Nd6 Ra5 Nde8 Bc4 c8N+ Ke6 Ned6 Rf4 Bd4 Bc7 Be5 Ng5 Bh5 Nf3 Ne2 Rh4 Rg1 h1Q Bd3 Rd4 Be4 Qg2 Ng3 Qh2 Ng4 Qf6 Nh6 Qg7 Nhf5 Qh8 Bf4 Kf6 Be5+ Kg5 Re8 Qh7 f8N Qh8 Nd7 Be6 Nf6 Bf7 Ng7 Kh4 N7f5+ Kh3 Rf1 Ng1 Rf4 Nf3 Re7 Bc4 Rg7 Be6 Qb2 Bf7 Rg5 Be6 Rb1 a1B Qc1 Bb2 Ra1 Bf7 Ra4 Na1 Qb1 Bb3 Bg4+
1Nr3bn/B1bN2R1/qRK2n1P/QB3bq1/1N5N/PNR5/nR6/r2k1Bn1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 h4 Kb4 d4 e5 f4 b5 h6 c5 h5 g5 f6 g4 a6 g3 a3+ Ka5 f5 g2 a7 b4 d6 c4 Kd5 e4 f7 e3 d7 c3 h7 c2 f6 Ka4 h6 Kb3 Nf3 g1N Qe1 e2 Rh3 Qe8 d8R Bd7 Nbd2+ Kc3 Nb3+ Kd3 Rb1 Qe7 Rb2 Bb5 Rd6 Nd7 Be3 c1N Nh4 Re8 a8B Na2 Rb6 Ne5 Bc6 Ng6 Rf3 Bg7 f8N Rc8 f7 Be5 Nd7 Bc7 f8N Qg5+ Rf5 Ba4 Nb8 Nf6+ Kc5 Rg8 h8R Rg7 Rh7 Nh8 d5 Bb5 d6 Bc4 d7 Bg8 d8N Re7 Na1 b3 Qa5 Re4 Bd7 Rc4+ Kb5 Rc1 Rg7 Rb1 Ndc6 Rd1 Nc2 Ra1 N6b4+ Kc3 Bc6 e1Q Nd4 Qe2+ Kc5 Qa6 Bcb5 Rb1 Nfd7 Ra1 Re2 b2 Nb3 b1B Kc6 Bc2 Rc5+ Kb2 Rc3 Kb1 Nd2+ Kc1 Nb3+ Kd1 Bf2 Bd3 Rb2 Bf5 Ba4 Qd3 Bb5 Qe2 Ra6 Qd3 Ba7 Qe2 Rb6 Qd3 Ba4 Qa6 Bab5
N4b2/Bk2r1r1/6P1/b5QR/1NnKb2N/P1RRnBN1/1r2R1q1/q3BN1b b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kd3 c5 g4 Kc7 f4 e5 f6 b5 a3 h5 a6 h4 a7 b4 g6 h3 d6+ Kc6 f5 h2 f7 b3 g5 b2 f6 Bb7 d7 Qb6 d8R Qa5 g7 Kc7 Bg2 Be7 f8B Na6 f7 Rh4 Qh5 Re4 Ra2 Re1 Ne2 Nh6 g8R Nb8 Ng3 Nf5 Bf3 e4+ Kc4 e3 d4 e2 d5 Bd6 Be3 Nd7 Nd2 b1R Ndf1 Rb2 Bd4 Rc8 a8N+ Kb8 Be7 Qd2 f8N Bc6 Qh4 Kb7 Ng6 Rc7 Bf8 Be7 d6 Be4 Bh6 Bf8 Rh8 Nb8 d7 Nc6 Rg1 h1B Bf2 Rd1 Be1 Qd5+ Kc3 c4 Bg7 Na5 Bd4 Rdb1 Rh5 Ne3 Ba7 Qg8 Kd4 c3 Qg4 c2 Nh4 c1Q g6 Nac4 Qg5 Qc2 Bb4 e1B Rg2 Bd2 Re2 Re1 Ra1 Qe6 Rc1 Qc6 Ba5 Qd1 Rc3 Qb1 Rc8 Qa1 d8N+ Ka6 Rb3 Rg7 Rd3 Qb7 Nc6 Bdb4 Ne7 Qc6 Nd5 Kb7 Bc7 Ba5 Nb4 Nd2 Bcb8 Qc2 Rcc3 Ndc4 Rh2 Qg2 Bf4 Nd1 Bd2 Re2 Be1 Nde3 Bg4 Rf2 Be2 Rff7 Bd1 Re7 Bf3 Qh3 Rhd2 Qg2 Re2
4N2n/k1NB4/1rRb1P2/3Br1Rq/3qN1n1/B2qrr2/bN1PBQ2/1RK2N2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 a5 g4 h5 g6 c5 d6 e5 b6 Kc6 f6 Kb7 f5 h4 g7 a4 b5 e4 f7 a3 d7 e3 g5 a2 g6 c4 f6 h3 Be2 h2 Nf3 c3 Rg1 h1Q Na3 c2 Rb1 a1Q Nh2 Rh5 Nc4 Qf3 Nf1 Ra4 Nb2 Re5 Rg5 Ba3 f8N Rb4 Nh7 Qe8 d8N+ Ka8 b7+ Ka7 Ne6 Kb6 Nc7 Na6 b8N Nh6 g8B Ng4 g7 Nc5 Be6 Ne4 g8B Ka7 Bd7 Qh5 Nba6 Nd6 Bd5 Nf7 Ne8 Nh8 Nac7 Qe4 Ng7 Qd3 b6+ Kb8 b7 Ka7 b8R Rb6 Nge8 Bd6 Ng7 Ba6 Rc8 Bc4 Nge8 Ba2 Nc4 Rb4 Ba3 c1R Nb2 Rc3 Qb3 Rb8 Kd1 Rb6 Qb4 Rb3 Qf4 Rc3 Qf2 Rcb3 Bef3 e2+ Kc1 e1R+ Bd1 R1e3 Be2 R3b5 Na6 Rf3 Rc6 Ree3 Nac7 Ra5 Nf8 Rab5 Nfe6 Ra5 Nc5 Rab5 Nba4 Qad4 Nb2 Ra5 Ne4 Rc5+ Bc4 Re5 Bd5
3N3B/R2bN1nB/4NP1q/QRr2rn1/1r2nk2/3rqP2/2R1R2R/b1N1K1B1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 h4 Kd6 d4 e5 h6 a5 f6 g5 h5 c5 h7 a4 b6 e4 b5 a3 h6 e3 b7 c4 b6 c3 Qe2 a2 Rh2 g4 Qb5 e2 Be3 c2 Nc3 g3 Qa5 Nd7 b8R g2 b7 Ne7 f3 Nf5 Rc1 a1R Bf2 Rg8 h8B Nc5 h7 Bd7 Rc8 Ra7 b8R Ra3 Rb5 Rb7 Ra8 Rg5 Ra7 Ng7 Be3 Rf5 Bf2 Qb6 Be3 Kc7 d6+ Kc6 Nd5 Rd3 Bf2 Ne4 Be3 Be7 Bf2 Bd8 Be3 Bc7 Bf2 Be8 d7 Kd6 d8N Bd7 Ne7 Rc5 d5 Ke5 d6 Kf4 Ra1 Rf5 Ra2 Qe3 Rab2 Bb6 Ra2 Bd4 Rab2 Be8 d7 Be5 Ra2 Ba1 Rab2 Rc7 Ra2 Rcc5 Ne6+ Ke5 d8N Bd7 Nh3 g1N Nhf4 Nh3 Bg1 Nhg5 Rab2 Rb3 Ra2 Rb4 Nd3+ Kd6 Nc1 Ke5 Nc7 Kf4 Bh3 Rfd5 Bf5 Rd3 Nce6+ Kg3 Rh6 Qf4 Nb3 Qh4 Rh5 Ne8 Bg7 Rcd5 h8R Re5 R8h7 Qh3 Bh8 Ng7 R7h6 Qh2 Bh7 Rf5 Rh4 Nd2 Rc4 Nde4 Rb2 Qh5 Rcc5 Qg6 Rh2 Qh6 Nf8 Kf4 Rc3 Nd6 Kf2 c1R Rc6 Rc2 Nc1 Rcc3 Rcc5 Rc2 Re5 Rc5 Rc2 e1Q+ Kg2 Qe3 Kf1 Qd4 Ree2 Nde4 Ke1 Qe3 Nfe6+
2rN2qN/bb1N1n2/2N1P3/1N3Q1R/q4qR1/k3q1BK/n1BrQ1P1/5NQb b - - 0 1 legal: proof: d4 e5 h4 c5 dxc5 g5 hxg5 b5 a4 e4 axb5 e3 fxe3 Ba6 e4 Bb7 e5 Bc8 Kf2 Ke7 Kg3 a5 c4 f5 b4 h5 e4 d5 b6 a4 b5 a3 c6 a2 c7 d4 g6 d3 b7 d2 b6 Qd4 c5 Nf6 g7 Qb2 g8N+ Kd7 c6+ Ke6 Nf3 Bd6 Nh4 Rh7 Ng6 Na6 b8N Nb4 b7 Qc3+ Bd3 Ng4 Nh6 Rd7 Nh8 Bc5 N6f7 Ba7 Qg1 d1Q Nd2 Qdb3 Nd8+ Ke7 Kh4 f4 Bc2 f3 Bb2 Rd3 Nd7 f2 b8N f1Q Ba3 Qf8 Nf1 Qbg8 Bb2 Bb7 c8N+ Ke8 c7 Nh6 Rh3 Rd2 Nd6+ Ke7 Nb5 Qf5 Rb1 a1Q Ba3 Nf7 Nbc6+ Ke8 Bb2 Qa4 Ba3 Na2 Bd6 Qcd4 Rbb3 Qb6 Rbg3 Qbd4 Rg5 Qe6 Kg3 h4+ Kh2 Qdc4 Rh5 Rb8 Rg3 h3 Rg4 Qcb4 Kg3 h2 Kh3 h1B c8Q Ra8 Nb6 Qh6 Qf5 Rc8 Nd7 Qc4 e6 Qd4 Bg3 Qf4 e7 Qc3 Nc5 Qcb3 Nce6 Kd7 e5 Qd3 Nc3 Qdd4 Nc5+ Kc7 e8Q Kb6 Nb5 Qdf2 Ne7 Ka5 Nd7 Kb4 Nec6+ Kc4 Bb1 Kb3 Bc2+ Kb2 Qee6 Q2d4 Qc4 Qfe3 Qe2 Qdf4 Bd3 Kb3 e6 Kb2 Be4 Kb3 Bc2+ Kb2 Nc7 Ka3 Nb5+
3rR1N1/4RR1r/3qP3/1Qn1B1n1/r2Rq3/P1QBk1n1/1R2nRb1/bK2QN2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 h4 Kd7 d4 g5 Kd2 c5 Kc2 f5 e4 b5 a6 f4 a7 b4 e6+ Kd6 h6 g4 e7 f3 e8R g3 h5 g2 e5+ Kd7 h7 f2 h6 c4 e6+ Kd6 a3 c3 Bd3 f1Q Ne2 g1R Ra2 Nd7 Bf4+ Ne5 Re7 Nf6 Rh2 Bg7 Rf2 Rb8 a8Q Bb7 Qa6+ Bc6 Rb2 Nh5 Qb5 Qe1 Ng3 Qe4 Nf1 Ng3 Nbd2 b3+ Kb1 Ra8 Rf7 Ra4 Qe1 Rh1 Re7 Rg8 h8Q Ba8 h7 c2+ Ka1 c1N Kb1 Bf6 Qg7 Qb8 h8R Rd8 Rf8 Nce2 Rff7 Rh7 Qh8 Rd7 Qc8 Rd8 Qc3 Bb7 Nh2 Ba8 Ng4 Bg7 Nf1 Qc7 Bg5 Nd7 Nh6 Nc5 Ng8 Be5 Bf6 Qd7 Rd2 b2 Bh8 Ng1 Bf6 Nf3 Rde2 Ng5 Bg7 Kc7 d6+ Kc8 d5 Re8 R7f3 Qe3 Qcb4 Na6 Ka2 b1N Rf5 Ba1 Rff7 Nc3+ Kb3 Qd4 Rb2 Nce2 Kc2 Qd8 d7+ Kc7 Q4a5+ Kd6 Kb1 Nc5 Qac3 Qc7 d8R+ Qd7 R7f6 Ke5 d6 Bg2 Rff7+ Kd5 Rb8 Qe4 Be5 Qc7 d7 Rc8 d8R+ Qd7 Rde8 Qd6 Qba5 Rd8 R8b4 Qe3 Bc4+ Ke4 Qb5 Qf4 Nh2 Qf5 Bd3+ Ke3 Rd4 Qe4 Nf1+
3K2b1/R2B3R/1QPB1k1N/qN3R2/3rBn1b/rB2NPnb/Bq6/3Nqb2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 e5 Ke4 a5 Kd5 h5 g4 d6 b4 e4 c4 h4 b6 e3 b5 e2 b7 e1Q g6+ Kf6 f3 h3 b6 h2 g7 a4 g5+ Ke7 c6 a3 g6 a2 c7 Qd7 f6+ Ke8 c5 Nc6 b8N Nd4 c6 Ba6 c8B Rh6 f7+ Ke7 b7 Qe2 Nd2 Bd3 Qb3 Rh7 Nc4 Nc2 Bf4 Ra6 Ne3 Qe8 Bd7 Kf6 Nh3 Nh6 g8B Nd4 g7 Be7 Nf2 Ne6 Nfd1 Nf5 Qb6 Ra3 Na6 Rh4 b8N Ng3 Nc7 Qb2 Nb5 Be2 Bh3 Bf1 Bf5 Qd8 Be4 Rg4 Rg1 h1B Rg2 Rh4 Rh2 Bhg2 Rh1 Rg4 Rh7 Bh3 Be5+ Kg5 f8R Qc7 Qa6 Qa5 Rf5+ Kg6 Qb6 Bh4 Bc8 Rf4 Nd7 Rg4 Nf6 Qe1 Rc1 a1Q Bd7 Rf4 Nfg4 Qa5 Nh6 Rg4 Rc3 Nf4+ Kd4 d5 Kc5 d4 Kd6 d3 Kc7 d2 Ba2 Qab1 g8B Q1a1 Nf2 d1B Bd6 Bb3 Nfd1 Qac1 Rc2 Qcd2 Rc1 Qe1 Ra1 Bbc4 Rh5+ Kf6 Kd8 Bce2 Bgb3 Bc4 Rc1 Bg8 Rc4 Rg5 Ra4 Rd5 Re5 Rd4 Rg5 Qab4 Ra7 Qa5 Rf5+
1bq1QqNq/NrRn1R1q/n1P2rB1/k1N2B1b/N7/N3RP2/BB2K3/b7 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 d5 c4 Kd7 b4 Kc7 c6 Kb6 g6 e5 f3 a5 f6 h5 f7 h4 g7 d4 c7 a4 g5 d3 c5+ Ka7 b6+ Ka6 g6 h3 b5+ Ka5 b7 d2+ Ke2 e4 b6 h2 Na3 e3 Qe1 Bd7 c8B Ra6 Bb2 Bh3 Bf5 Qh4 Rc1 Bd6 f8R Rh7 Rf7 Nf6 g8B Nfd7 g7 Bg4 Bh3 Be5 Bg6 Bh5 Bhf5 Qd8 Rc2 Qc8 Rc3 Nf6 Rc7 Nfd7 Ba2 Qh8 g8N d1Q+ Kf1 Qd3+ Ne2 Qc4 Rd3+ Qb4 Nc3 e2+ Kf2 Rg7 Re3 Qf4 Rg1 h1Q Rg4 Qfh6 Rge4 Bf4 Re7 Rh7 Rf7 Qf8 Qb1 Bh2 Qe4 Qb1 Qe8 e1Q+ Kg2 Qed1 Kf2 Qdc1 Ke2 Qe4 Nab1 a3 Na4 Nc6 b8N Nb4 b7 Rf6 Na6 Qee7 Bb3 a2 b8N a1B Ba2 Qe4 Na3 Qb7 Bd5 Qc8 Ba2 Qh1 c6 Rg7 N6c5 Bd6 Nba6 Qh4 Ra7 Bb8 Nc7+ Na6 Ncb5 Rh7 Rc7 Rg7 Bd3 Qe4 Na7 Qee7 Bgf5 Qe4 Bg4 Qeh7 Bgf5 Rg4 Bfe6 Rb4 Bg6 Rb7 Bef5
3bNB2/n1B4b/rP1Q3k/1qRP4/1rBrn2b/q2R1bRB/NN2B2K/7N b - - 0 1 illegal: No possible last move
Qb1N1q1b/1K1BN1N1/PBNk4/R1rn1Nn1/nN3P2/3b2RQ/1q2r3/4b2R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 g5 Ke4 b5 d4 e5 a4 c5 h4 c4 f4 c3 d6 c2 Kd5 b4 f6 e4 h6 e3 h5 g4 h7 e2 f7 e1N h6 g3 a6 g2 a7 b3 a5 b2 a6 Nc6 Qf3 Qe8 Na3 b1Q Be3 c1B Nc2 Qb2 Bb5 Qb4 Ne2 g1B Ra5 Bb7 Ng3 Qa3 Nf5 Rb8 a8Q Bg7 Qh3 Qb2 Nb4 Bd2 Kc5 Bc8 d5 Qf8 Bf2 Bb7 Kb6 Ne7 Bc5 Rg8 h8R Nd3 h7 Be1 Bf2 Be5 Ba4 Rg6 Rg8 Nc5 h8N Rg2 Rg3 Rc8 Ng6 Bh8 Bd4 Re2 Bb5 Ng8 Nge7 Nf6 Bf2 Nh7 Be3 Kd8 d7 Ng5 Ba4 Nd4 Ka7 Kc7 d8N Nde6 Bd7 Na4 Bc5 Bgd4 Ndc6 Bde5 Bf2 Qd8 f8N Bd6 Nfg6 Qf8 Ngh4 Bde5 Ng7 Kd6 Bb6 Rc7 Nd8 Rc5 Kb8 Bc6 Ka7 Bb5 Ndc6 Nc7 Kb7 Qa3 Bg4 Bd3 Nhf5+ Kd7 d6 Qb2 Ne8 Ke6 d7 Nd5 d8N+ Kd7 Neg7 Bb8 Ne3+ Kd6 Bf5 Rf2 Bd7 Re2 N3f5+
3BB1Nn/2K3PP/3NB2b/1b2r3/Rb5q/2N2rN1/RB2bnrq/3NkR1Q b - - 0 1 illegal: No possible last move, all moves rejected
Bk2KB2/br1P1RrR/3B1BN1/4Q2r/P2B2q1/n2qN2r/4Q1b1/bB4nR b - - 0 1 illegal: No possible last move, all moves rejected
1bNq3B/2P2q2/4RbbN/3PR3/2q1Bn2/1k3nNr/q2B1N1R/B2KNQr1 b - - 0 1 illegal: No proof kernel
4N1B1/2n2B1N/qR2Q2B/PrNn2Br/1Qr1r3/1Bk3P1/K4brR/2r2bB1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 Kd6 Kc3 e5 Kb3 c5 a4 h5 f4 b5 g3 e4 g6 b4 f6 e3 a6 e2 a5 e1R f7 h4 g7 c4+ Ka2 c3 f5 c2 f6 h3 a7 h2 Ne2 Ba6 Nbc3 Nh6 g8B Qc7 Na4 Nc6 Nf4 Nf5 Nc5 Bd3 Qe2 Bb5 Rb1 Bd3 Nfe6 Rh6 Ng7 Rh5 Bh6 Rc8 a8B c1R Qe8 Ba6 Bc4 Nd8 Bb3 Qb7 Qe3 Be7 f8N Bf1 f7 Qa6 Nh7 Ne6 f8Q Nc7 Bc6 Rc4 Be8 Rcc1 Qe4 Ne3 Bef7 Re2+ Rb2 Rg2 Qe8 Bg5 Qb5 Re8 Qg4 Re4 Ne8+ Ke7 Qa4 Rc4 Qh3 Ng4 Qb5 Be3 Qa4 Bf2 d6+ Kd8 d7 Ke7 d5 Ne3 Ng7 Kd6 d8B Ke5 d6 Kd4 d7 Ned5 Qe6 Kc3 Bdg5 Re3 d8B Ree4 Rg1 h1R Ne8 Bd3 Rgb1 Rc1 Be3 Bf1 Bdg5 Be1 Bg1 Bf2 Bd1 b3+ Ka3 Red4 Ra2 b2 Bb3 Re4 Qb4+ Kd4 Rba1 b1R Rc2 Rce1 Ka2 Rbc1 Rb1 Re5 Rc3 R1e4 Rf3 Rf5 Rf4 Re5 Rh4 Rf5 Rh2 Rfe5 Qb5 Kc3 Rb2 Rf5 Qa4 Rfe5 Qb4+ Kd4 Qa3 Qd6 Na4 Ne3 Bd1 Qa6 Rb6 Rb5 Qb4 Ned5 Bb3 Kd3 Nc5+ Kd4 Qa3 Kc3 Qb4+
1k1B1Q2/7n/bQ2qBrN/R2RbP1R/1r3P2/4B1Bp/B3nK1N/r2bB1n1 b - - 0 1 illegal: No proof kernel
3r2R1/R3b2B/r2r3k/1RQqP2Q/1Qp5/1b2RRBN/2nP2R1/n2N1Kbn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 c5 b4 g5 h4 a5 d6 f5 h6 Kf7 e6+ Kg6 h5+ Kh7 e7 f4 e8R c4 d7 f3 b6 g4 b7 a4 b5 a3 b6 g3 Nc3 g2 Bd3 a2 Rh2 Nc6 b8Q Qf6 d8Q Qg7 b7 Ne5 Qd4 Bd6 Ba3 Ng4 Qc5 Qg5 Nh3 g1B Rg2 f2+ Kf1 Ne7 Rf8 Qd5 Rf3 Kg8 h7+ Kg7 h6+ Kg6 Qe2 Nf5 Nd1 Rd8 h8R Bd7 h7 Kh6 Rg8 Nd4 e5 Bf5 h8R+ Bh7 Bb2 Nc2 Bd4 Be7 Bg6 Ra6 Qbd6 Rd7 b8R Rd8 Qdb6 Rd6 Qbb4 Rd8 Rb5 Rad6 Rb1 a1N Rg7 Ra6 Rhg8 Rad6 Bf5 Bg6 Rbb3 Be8 Rb6 Ba4 Rbe3 Bb3 Rb5 Ra6 Bh7 Rdd6 Qd3 Rd8 Qf5 Rdd6 Ke2 f1R Qf7 Nf2 Qe8 Bh4 Ra7 Be7 Qf7 Bh2 Qf5 Rh1 Qg4 Bg1 Kf1 Rh2 Re4 Nh1 Bf2 Rd8 Bg3 Rad6 Ree3 Ra6 Nf4 Rh5 Qf5 Rg5 Qf7 Rgg6 Nh3 Rgd6 Qh5+
1bb2B1r/3R1rR1/1p2KN2/3n2NB/kRn5/qbB2n1P/1RNB1PQr/3B4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Kd3 Kd7 Kd4 Kc6 Ke5 g5 c4 e6 a4 g4 a6 b6 a5 d4 h3 d3 h6 d2 h7 g3 f6 g2 f7 Bd7 a7 Qe8 a6 Nf6 Ra2 Be7 f8B Qg6 Nf3 g1N Ng5 Qe8 Rb2 Rg8 h8B Nh5 Qg4 d1B Na3 Bd8 Qg2+ Bf3 Bd2 Be4 Be2 Bc8 Nc2 Qf7 Bd1 Nf6 Bh5 Bd5 Rb5 Ne2 Rhb1 Nd4 R1b2 Qe7 Bd1 Rg7 Bh5 Kc7 c6 Qa3 c5 Bb3 Bd1 Be7 Bh5 Nd5 Bd1 Kd8 c7+ Kd7 Bh5 Kc6 Bd1 Bb7 c8N Rf7 Nd6 Bc8 Nde4 Bd8 Nf6 Nd7+ Ke4 Rb8 a8R e5 a7 Nf3 Kf5 e4 Ke6 e3 Bhg7 e2 Bh8 Kb7 c6+ Ka6 c7 Be7 Bhg7 Bd6 Bh8 Be5 Bhg7 e1R Bh8 Bb7 c8R Rh1 Rd8 Rh2 Bhg7 Bd6 Bh8 Nde5 Rd7 Rd8 Rc8 Bc7 a8B Bb8 Rcc7 Bc8 Bc6 Nc4 Rb7 Nc3 Be4 Nd5 Bg6 Ba4 Bh5 Bb3 Bfb4 Rdf8 Bbc3 Rd8 Bg7 Rg8 Bf8 Rh8 Rb4 Ka5 Rb5+ Ka4 Ra7+ Ba6 Rac7 Rfh7 Rg7 Bb7 Rcd7 Bc8 Rg6 Rf7 Rg8 Bc7 Rg7 Bb8 Rb4+
2B4B/K1RbN1P1/2NQp1n1/n2Q2R1/Q4r2/n1rPrQ2/Q6b/1Rk1bqQ1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Ke4 b4 a5 g4 h5 f4 h4 g6 c6 d6 a4 g7 a3 f6 h3 f5 a2 f7 h2 f6 e6 g5 Bb7 g6 Ra6 b6 Kf4 b5 Rh6 Qa4+ Kf5 Ne2 Ra8 Nd4+ Kf4 Rg1 h1R Rg5 R6h2 Bb2 Ke4 Nc3+ Kf4 Rc1 Ne7 g8Q a1N d7 Bc8 b7 Rh4 b6 R1h3 Ba6 Nc2 d3 Ke3 Nd5+ Kd2 Rb1 Qe8 d8Q Na3 Qd7 Bh6 f8R Re3 Rf7 Rf4 Rh7 Qf8 f7 Bg7 Qd6 Bd7 Ba1 Nf5 Ne7 Nh4 Qd5 Be5 Rg7 Rf5 Rh7 Bh2 Qg7 Rf4 Bb2 Qg8 f8Q Qf7 Qa2 Qf5+ Qe5 Qh3 Qed5 Qf1 Qff5 Ra7 Qf3 Ra8 Q5d5 Ra7 Rh8 Ra8 Rc8 Ra7 Rc7 Ra8 Kd6 c5 Ndc6 c4 Kc5 c3 Ba1+ c2 Bh8 Ra7 g7 Ra8 Nd8 Nc6 b8Q Ng6 b7 Na5 Kb6 Ra7 Ndc6 Ra8 Qa7 Rc8 Qa1 c1B b8Q Bb2 Qaa8 Bc3 Ka7 Qh1 Qbb4 Qf1 Qbd6 Bb4 Rb3 Kc2 Qad4 Be1 Rb1+ Kd2 Qa1 Rb8 Bc8 Rb3 Qb7 Rc3 Qb6 Ree4 Qg1 Re3 Rb3 Kc2 Qa2+ Kc1 Rb1+
2QR1r2/NP2r1n1/1K2R2q/N5p1/1R2Nb1n/1P1B1BBb/nr2B1B1/3bk1R1 b - - 0 1 illegal: No possible last move
1R1nr3/2Q4R/3n4/1qb1Q1k1/NN2b2R/rB1BR1pK/2q1R1PP/1qR3Br b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 f4 h4 fxe5 h3 Qc2 Bd7 Qh7 Be6 Nxh3 Bd7 Ng1 Bc8 Kf2 Ke7 Kg3 c5 d4 g5 e4 a5 b4 g4 d6+ Ke6 b6 f5 b7 a4 b5 a3 b6 a2 d7 c4 Nf3 c3 Ne1 c2 Bd3 Bb4 Nc3 Bd6 Na4 Ba3 Be3 c1Q Bg1 Qd1 Rc1 a1R Nc2 Bd6 Nb4 Qg5 d8R Ra7 Rd7 Nc6 b8Q Ra2 b7 Bf8 Qc7 Bd6 b8R Qc2 Qh5 Rb7 Rh7 Nf6 Re1 Rb5 Re3 Ne8 Re2 Qgc1 Kh4 g3 Kh3 f4 Qg5 f3 Rh4 Bd7 d5+ Kf7+ e6+ Kf8 e5 f2 Rh7 Bc5 d6 f1Q Qh5 Bc8 d7 Ra3 d8R Q1b1 Rd4 Nd8 Rh4 Bb7 e7+ Kg8 e6 Be4 Qhe5 Nd6 e8B Ra5 e7 Ra1 Nb2 R5a3 Re3 Qfe2 Ba4 Qh5 Rh6 Kf7 Rh7+ Kg6 Bb3 Re8 Na4 Qhe2 Qc3 Kg5 Qe1 Rg8 e8R Qh5 Ree7 Qe8 Qc3 Qb5 Qd4 Re8 Re2 Bf3 R7e3 Be4 Qe5+ Nf5 Bf2 Qbb2 Qc3 Nd6 Rhe1 Rd1 Rf1 Qbb1 Qa1 Rd2 Rc1 Rd1 Qh8 Rh1 Bg1 Ne6 Qd4 Nd8 Qe5+
4r1b1/1Q1Q3b/3RNQQ1/q6n/3qQ2N/QrBRpP1B/2P5/R1nKbk1r b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ra3 Kf7 b4 Kf6 h4 Ke5 h6 Ke4 b6 a5 b5 g5 c6 d5 h5 e5 f6 d4 b7 a4 f7 d3 h7 g4 c7 g3 b6 g2 h6 Qd4 Nd2+ Kf4 Bb2 e4 Qh5 e3 Nb3 Bf5 c8Q Nc6 b8R Ne5 b7 Nf6 Nf3 g1R Qd7 d2+ Ke2 Bg6 Nc5 d1B+ Ke1 Be7 f8Q Be2 Ba1 Rg8 h8Q Bc4 h7 Nd3+ Ke2 Bd8 Bh3 Ba5 Nh4 Rd1 f3 Kg3 Qhf5 Nh5 Qe4 Rf1 Re8 Rb8 Qhg7 Rc1 Rc3 a3 h8Q a2 Re6 Bb4 Qgf7 Bh7 Qhf6 Rb1 Bb2 a1Q Rc1 Kh2 Q7g6 Qa5 Rc6 Bf7 Ne6 Ra1 Qc5 Rge8 Rd6 Bfg8 Ra3 Bd2 Rd1 Rb1 Ra1 Bc3 Rd2 Rh1 Qa3 Bb4 Rdd1 Be1 Rd2 Nc1+ Kd1+ Ne2 Rd3 Nc1 Bg2 Kg1 Bc3 Ra8 b8Q Ra6 Qde7 Rb6 Qbb7 Rb3 Qd8 Kf2 Qdd7 Kg1 Bh3+ Kf2 Ng2 Kf1 Nh4+
rnqQ1Kb1/b1RR3B/BB1N4/4R2q/1qR1p1Nr/B7/1PkN1n1P/6Rn b - - 0 1 illegal: No possible last move, all moves rejected
N4RQ1/4qNbR/1BBQ1rb1/q2r2n1/RnP1R1Nk/3b2R1/2PRp3/n5K1 b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 f5 exf5 b5 a4 c4 axb5 c3 dxc3 Nc6 c4 Nb8 f4 Kf7 Kf2 Kf6 h4 a5 b4 e5 h6 d5 h5 g5 b6 a4 b5 g4 h7 a3 b7 d4 b6 e4 h6 a2 Nc3 d3 Be3 d2 Rh2 Qd6 Nd5+ Kf7 f6 Kg6 f7 Ra7 Nf3 g3+ Kg1 g2 Nc7 Qd8 f5+ Kf6 Na8 Be6 Ne5 Nd7 b8Q Ra6 b7 Ne7 Bb6 Kg5 f6 e3 Ng4 Bg7 f8R Nc5 f7 Ne4 Re8 Bf5 f8R Nc6 Bd3 Rg8 h8N Bg6 h7 Nb4 Qc8 Qe7 b8R Ra5 Rh3 Rd5 Rg3 Kh5 Nf7 Ng5 Be4 Kh4 Nfh6 Rh8 Rf2 Rf8 h8R Rf6 Bf3 Bd3 Rh7 Bg6 Qe6 Bd3 Qd6 Bg6 Qb1 d1B Rd2 Be2 Rf8 Bed3 Rbe8 e2 Be4 Rc5 Bc6 Rd5 Qf1 Qd7 Re4 Qe7 Rb1 a1N Rb3 Rf2 Ra3 Rf6 Ra4 Rd4 Qf5 Nd5 Kf2 Nb4 Rf4 Qa7 Qfd5 Qa5 Qg8 Rd5 Bc5 Ne6 Bb6 g1Q+ Kf3 Qe3+ Kg2 Qe5 Re4 Ng5 Kg1 Qe7 Nf7+
1BB4q/R2nqknR/3n2b1/1Nb2R2/RBpr1R1P/3Q1K2/2rPN3/4N1rB b - - 0 1 illegal: No possible last move, all moves rejected
qN2Bq1k/2n1N2n/1RR3K1/1BBRrP2/2Bb1rb1/1NPnBpQ1/3N4/r7 b - - 0 1 illegal: No proof kernel
Rr2n1NK/2BR4/1r2R1NQ/3nPb2/B5N1/Bnq3b1/B1k1qpPN/3N1q2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kf3 c5 Kf4 f5 b4 h5 e4 a5 d4 c4 g6 h4 Kg5 c3 g7 c2 Kg6 f4 e6 Kd6 b6 a4 b5 f3 e7 h3 e8B a3 b7 h2 b6 a2 e5+ Ke7 d6+ Ke6 d7 Kd5 Ba3 Ke4 d5 c1N d6 f2 Nf3 Ra6 Qd2 Ra5 Bc4 Rh4 Qh6 Na6 Kh7 Ne7 b8N Ra4 g8N Rh3 b7 Nc7 Kh8 Rg3 Nc6 Nb3 b8B Ned5 Nce7 Ra6 Ng6 Be7 Rd1 h1Q Nh2 Rg5 Nc3+ Ke3 Rd2 Rb6 Nd1+ Ke4 Rd3 Qf1 Rf3 Rg3 Rf6 Rc3 Re6 Bh4 Ng4 Bg3 Nh2 Qg5 d8R Qe3 Ba4 Ne8 d7 Qee2 Bc7 Rc2 Bad6 Rb2 Ba3 Ba6 Ra8 Bc8 d8N Rb8 Rb1 a1Q Nf7 Rb6 Rc1 Rb1 Rc2 Qc3 Rd2 Rb8 Rb6 Bf5 Re6 Ndf6 Rd7 Nd5 Qh3 Kd4 Nfh6 Ke4 N6g4 Kd4 Bcb5 Rb6 Bc6 Kd3 Qh6 Kc2 Bcb5 Rb2 Bc4 Rb8 Bab5 Nc1 Bc6 R2b6 Ba2 Nb3 Ba4
qrb1n2N/NqN3NQ/2B2R2/N1BpK3/q3P1k1/2RrQ1N1/P4bn1/1B1n4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Ke3 Ke6 Ke4 g5 c4 b5 h4 g4 a6 g3 c6 g2 a7 b4 h6 f6 h5 b3 c5 d6 c7 b2 h7 Na6 c6 Ne7 h6 Bb7 c8B+ Qd7 Qd2 Nc7 Na3 b1N Rh3 Nf5 Rc3 Rb8 a8N Nh4 Qe3 Rg8 h8Q Rg5 h7 Rg6 Nc4 Rg3 Ba3 Ne8 Na5 d5+ Kf4 f5 c7 Ba6 Bb7 Bc5 c8N Qa4+ Bb4 Rh3 Bc6 Bb7 Na7 Bc8 Qg7 Bd4 h8N Rf3+ Kg5 f4 Qh7 Rh3 Kg4 f3 Kf4 f2 Bc5 Rg3 Nf3 g1Q Nd2 Rh3 Ne4 Qg7 Ng3 Qb7 Bg2 f1Q+ Bf3 Qg1 Be4 Qc1 Bg6 Qca3 Bd3 Nd2 Rf1 Nc4 Bb1 Nb2 Qc1 Nd1 e4 Bf2 Qe3 Qd7 Ng6 Qg7 Nc7+ Kf7 e6+ Kf6 Nh8 Qd7 Ncb5 Qb7 e7 Ng2+ Kf3 Nc7 e8N+ Ke5 Ng7 Ne8 Nc7 Kf6 Ke2 Ke5 Kd3 Kf6 Qe2 Kg5 Qe1 Kg4 Qe3 Qab5+ Kd4 Q5a6 Ne2 Qa4+ Ke5 Rf3 Ng3 Qa8 Qd2 Q6b7 Qdh6 Rd3 Qe3 Be1 Rf7 Bf2 Rf6
RN3B2/2RRq3/2nr2b1/1Npn3b/8/PrqR4/kB1RQPKQ/rR1B2b1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 h4 Kd6 h6 c5 h7 e5 h5 g5 a3 b5 h6 g4 a6 b4 f6 g3 a7 b3 f7 b2 Qe2 e4 Ra2 g2 Nc3 b1B Rd2 e3 Bb2 Qc7 Nf3 g1R Ne5 Bh3 Nc6 Na6 Nb8 Ne7 Rd3 Rhg8 h8Q R8g3 h7 Bg4 Rd2 Bg7 f8B Be5 Rd3 Qb7 Rd2 Bh5 Rd3 Kc7 d6+ Kb6 d7 Ka5 d8R Nd5 Rd7 Nab4 Nb5 Ka4 Rd2 Kb3 Rd3+ Nc3 d5 Ka2 d6 Ncd5 Rc7 Rh3 d7 Nc6 d8R Bh2 Rdd7 Bc2 Rd2 Bcg6 Qe5 Rhg3 h8R Rf3 Rhh7 Rf6 Rd8 Rd6 Rcd7 Qc7 Qf4 Qa5 Rc7 Qc3 Rhd7 Rg2 Qg3 Bg1 Qh2 Rg4 Bg2 Rb4 Kf1 Rb3 Na6 Rb8 a8R Rb7 Bf3 Rb6 Kg2 Rb8 Qf1 e2 Rd3 e1Q Bd1 Rb6 Nb8 Qe7 Rd2 Re6 Qd3 Re1 Qe2 Rf1 Bc2 Ra1 Bd1 Ndb4 R7d3 Nd5 Rd6 Nd8 Rdd7 Rd6 Qg3 Nc6 Qh3 Na5 Qh2 Nc6 Bc2 Nf6 Qh3 Bh2 Rb1 Nd5 Bd1 Bg1 Qh2
B2Kb1RR/Nr3qk1/2N4N/P1Rb1rB1/3b2nq/BPQ1qn2/5p2/B1BN4 b - - 0 1 illegal: No proof kernel
4B3/Q1BB2R1/Knbn1n2/P2r3b/4p1N1/bNk1PNNN/2qQ4/q1r1N1R1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 h4 Kd7 a4 Kd6 d4 c5 Kd2 b5 Kc3 e5 g6 f5 a6 b4+ Kc4 b3 Kb5 e4 a5 f4 a7 b2 h6 c4 g7 c3 h5 f3 h7 f2 h6 c2 Nh3 Nc6 Nd2 b1B Nf3 Be7 Bf4+ Ne5 e3 c1N Qd2 Bg5 Ne1 Nd3 Rg1 Bf5 Ka6 Nb2 Bb5 Qb8 Bd7 Ne7 g8B Ng6 Bf7 Rd8 h8N Re8 h7 Re6 Bfe8 Nf8 Ng6 Rf6 h8N Nh7 Nh4 Na4 Nhf3 Nb6 Ng6 Bg4 Ne7 Ba2 Bg3 Bh5 Nf5+ Kc7 Bf4 Rc6 Ng3 Kd6 Rc1 Rc8 Rc7 Be7 Rb7 Rc1 Rc7 Bf8 Rb7 Ke7 d6+ Kf6 d5 Nec4 Rc7 Qc8+ Rb7 Rb8 a8Q f1Q Qa7 Be7 Bg4 Qc6 d7 Rd8 Bc7 Ba3 d6 Qa4 Be6 Qc2 Bf5 Bb3 Bg4 Ba4 Bf5 Ra8 d8N Bc6 Nf7 Rd8 d7 Ke7 Nh6 Nf6 Ng4 Nd6+ Qd3 Qfe2 Be6 Qed1 Qc3 Qd4 Qd2 Qa1 Bf5 Rb8 d8N Ra8 Ne6 Rd8 Ned4 Rd7 Nb3 Rd8 Bh7 Ke6 Qf2 Kd5 Bf5 Kc4 Qd2 Rd7 Bb8 Rd8 Rg7 Rd7 Bc7 Rd8 Qd1 Kc3 Bc8 Nf7 Be6 Rd5 B6d7 Nd6 Qd2+
5q2/kR5B/1r4NP/nBR3bR/n4BP1/B3q1Bp/KNN1b2b/Q2rR1q1 b - - 0 1 illegal: No proof kernel
2NB4/N4b2/RBB2b1P/1pNB2b1/2Q2r2/1r1n1nP1/1k2n2q/qN1KBRR1 b - - 0 1 illegal: No proof kernel
6q1/1Q1nR1Qq/N1rQb1Pp/1P6/rb1QRQ1N/b1BB1nR1/q1k5/5Q1K b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 Kf2 Kd6 g4 Kc5 Kg2 Kd4 b4 c5 g6 e5 g7 a5 f6 a4 f7 h6 d6 c4 g5 a3 d7 e4 b6 a2 b7 e3 f5 e2 f6 Kd3 b5 c3 Na3 c2 Nf3 Bc5 f8Q Qa5 d8Q+ Bd7 f7 Be3 Nh4 Nc6 b8Q Rh7 Bb2 c1Q Qb7 Nb8 Nc2 Qa6 Bc3 Ne7 g8R Qa5 Qg7 Ra6 f8Q Qc7 Qf4 Nf5 g6 Nd4 Rg1 Qc4 Re8 Ra4 Re7 Nf3 Kh1 Qg8 Rg3 Bc5 Qdc7 Be6 Qcd6+ Bd5 Rb1 a1Q Rb4 Nd7 Rbe4 Ba3 Qe1 Qa2 Qd1 Rd4 Qe1 Be6 Nb4+ Kc4 d3+ Kb3 Na6 Ra4 d4 Kc2 d5 Qe3 Qf2 Qa7 Qg1 e1B Bd3+ Kb3 Qf1 Rh8 Ba1 Beb4 Bc3 Rh7 Qdc7 Rh8 d6 Rh7 Qd4 Rf7 Qg7 Rf8 Qc5 Rc8 Qcd4 Rc6 Qbb6 Nb8 d7 Qc7 d8Q Nd7 Be2 Kc2 Qb7 Qb8 Qdc7 Qh7 Qcd6 Qbg8 Bd3+
NnB3b1/8/1r3Prr/1q3PB1/RB3RKQ/2Bp3R/qNN5/bNkBn1n1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 Kf6 c4 Ke5 b4 d5 h4 g5 h6 a5 f6 e6 c6 a4 c5 d4 c7 a3 b6 a2 h7 d3 c6 Kd4 b5 e5 b7 Ra7 b6 Nh6 Qa4+ Bb4 Ne2+ Kc4 Nd4 Qe8 Be2 Qd8 Nc2 Ng4 Rf1 Bf5 c8B Be6 c7 Na6 b8B Rb7 Bd1 Qe8 h5 Qd7 h6 e4+ Kg3 e3 f4 e2 f5 e1N Rf4+ Qd4 Bd2 Ne5 Bc3 N5f3 Kg4 Ng1 Ba7 Rb8 b7 Bg8 Bc5 Qe4 Qa5 Ba3 B5b4 Kb3 Qd5+ Qc4 Qh1 Qb5 Qh4 Ra8 b8N Bb2 Nc6 Nb8 Ne5 Ra6 Nc4 Rc6 Nba3 Rb6 Nb1 Bc1 Nb2 Be3 Ba6 Bd4 c8N Be5 Nd6 Bd4 Ne8 Be5 Nc7 Bd4 Kh5 g4 Bc8 g3 Na8 g2 Kg5 Ngf3+ Kg4 g1R+ Qg3 Rh1 Qh4 Ng1 Rf3 Bc4 Rf4 Rg8+ Kh5 Rh2 h8B Rg6 h7 Bg8 Bg7 Rh1 h8R Rh2 Bh6 Rh3 Nba3 Rh2 Rb1 a1Q Bg5 Qa2 Ra1 Rh1 Kg4 Rh2 Qg3 Rhh6 Qh4 Nh3 Na4 Rh7 Bd2 Qb1 Qf2 Ng1 Ra2 Ba1 Bdc3 Qb2 Nb1 Rh1 Rh3 Rh2 Re3 Rhh6 Qh4 Qa3 Nb2 Qa7 Rh3 Qf7 Ra4 Qe6 Nba3 Ka2 Nac4+ Kb1 Nd2+ Kc1 Nb1 Qb3 Ra5 Qa2 Ra4
2qbb1BR/3NNR2/1B1RqP2/b2rp3/BN2nnq1/1N1P4/k1N1R1r1/2KQ4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 f4 e5 b4 h5 d6 a5 g6+ Kf6 b6 c5 b7 c4 b5 h4 g7 a4 b6 a3 g5+ Kf7 d7 c3 f6 Ke6 g6 Kd5 f7 a2 f5 c2 f6 h3 Ne2 Kc4 Na3+ Kb3 d3 h2 Kd2 Ra7 Bg2 Qe7 d8R Na6 b8N Rd7 b7 Qe6 Bc6 Rd5 Rd6 Be7 f8R Bd8 Rf7 Ne7 g8N Bd7 g7 Nc5 Na6 Ng6 b8N Nf4 Ne7 Be8 Nd7 Rg8 Nb4 Qg4 Bb2 Ne4+ Kc1 Qe6 Re1 h1Q Bd4 Qh5 Bb6 Qhg4 Bb5 Rh8 g8B Rh2 Rh1 Rg2 Rh8 Qg6 Nb1 Qgg4 Nd2+ Ka3 Rb1 a1B Nb3 Bc3 Ba4 Be1 Rb2 Bc3 Na2 Be1 Ned4 Ba5 Nb4 Nf2 Kd2 c1Q+ Ke1 Qc5 Kd2 Qc8 Rc2 Ne4+ Kc1 Qb7 Re2 Qc8+ Nbc2+ Ka2 Ndc6 Qg5 Re1 Qgf5 Re2 Qg4 N6b4+
4R1q1/3Qnq1b/2NRQP1r/1p3NnR/1P2Br2/k5R1/qBb2b1R/R3NK2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 exf5 g5 hxg5 d4 a5 d3 cxd3 Kd7 d4 Ke8 d5 Qd6 Rh2 Qc6 Rh1 Qb6 axb6 Bg7 Qa4 Bh6 Qd1 Bf8 g4 Kd7 d4 Kd6 f4 c5 b4 a5 b7 e5 f6 h5 g6 h4 f7 h3 g5 c4 g7 e4 g6 h2 f5 a4 Na3 c3 Nf3 e3 Nc2 a3 Bb2 a2 Nh4 e2 Bg2 Na6 b8R Nc7 Be4 Ne7 g8R Ne6 g7 Ng5 f6 Rh6 Qd2 Bf5 Re8 Rc8 Rh8 Rc5 g8Q Bh7 Kf2 Rc7 Ne1 c2 Bc3 c1Q Qd1 Rc4 Nf5+ Kc7 Rg1 h1B d6+ Kd7 Rg2 Ke6 d7 Qa3 d8R Qa8 Rg3 Bf3 Rc1 a1Q Rb1 Q1a2 Ra1 Bh5 Rd5 Qb7 Rc5 B5g6 d5+ Kd7 d6 Ke6 d7 Qd5 Nc2 e1Q+ Kg2 Qed2+ Kf1 Qb7 Ne1 Qdd5 Qg4 Rd4 d8N+ Ke5 Rc6 Qdb3 Bc2 Kd5 Rd6+ Kc4 Nc6 Qba7 Qd1 Rdh4 Be4 Rf4+ Qf3 Qbb2 Qg7 Kb3 Qg8 Ka3 Qg7 Rg4 Qe2 Qb3 Qc4 Rgh4 Qe6 Rf4+ Rf3 Ng8 Rf2 Be7 f8R Bd8 Qc7 Ne7 Qcd7 Bb6 Rf3 Bf2 Rg3 Bh5 Rfg8 Bd1 Rg2 Bc2 Rh2 Nf7 Rg3 Ng5 Qe5 Qf7 Qee6 Qb8 Rhg8 Nh3 R8g5 Qa8 Rh5 Ng5 Rg8 Qaf8 Rh8 Q8g7 Re8 Qgg8 Bb2+
q2b2q1/2B2r2/RQBP1r2/2q2bQK/kNpQ4/P1RNnRR1/5b2/1R1R2n1 b - - 0 1 illegal: No possible last move
5kN1/Qb5B/qBrp1nq1/P1QB3n/1r2Bq2/1R3R2/KN2PB2/2Qnb1B1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 b5 Kc3 g5 Kb2 f5 c4 d6 h4 g4 a4 g3 a6 b4 e6 f4 a5 g2 h6 b3 h7 f3 a7 f2 h5 Ke7 h6 Nc6 Nf3 g1Q Nh2 Qe8 Be3 Ba6 Ra3 Qd7 Nc3 Rc8 a8B Nd4 c6 Qg6 c5 Qa7 c7 Qd3 c6 Nf5 Ng4 Bg7 Bg2 f1Q Rh3 Be5 Nf6 Ng3 Bf2 Nf5 Be4 Bb7 Rf3 Qae3 Qc1 Bg3 Nd1 Rf8 c8Q Qc4 c7 Qcc5 Qb8 Qc6 c8Q Qb5 Q8c5 Qed3 Qba7 Rb8 Ka1 b2+ Ka2 b1N Nb2 Qbc4+ Rb3 Qa6 Bg1 Kf8 e7+ Kf7 e8B+ Kf8 B8c6 Ng7 Bcd5 Be1 Bf5 Nh5 Bde4 Ne7 Ng8 Nd5 Bg6+ Ndf6 Bgf5 Bc8 Bad5 Nc3+ Ka1 Qg2 Ne7 Qc2 Qc4 Nd1 Ka2 Rg8 Qb4 Rg7 h8B Ne8 h7 Qd2 Ng8 Rc7 Bhd4 Qf4 h8B Rc6 Bh7 Qg6 Bdf2 Rb7 Qbc3 Rb4 Bhd4 Bb7 Bb6 Nef6 Qc5
N1Kbk3/3B1R2/2P5/B1b2n2/RN1r2BQ/1RNnPpq1/5rr1/N2bBqN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 f5 Kf3 d5 Kf4 a5 c4 g6 b4 d4 h4 a4 h6 d3 b6 a3 h5 d2 b5 a2 e6 g5+ Ke5 f4 c6 f3 c5 g4 c7 g3 b7 g2 c6 Ke7 b6 Ra4 h7 Rg4 e3 Na6 b8N Nf6 b7 Qd7 h6 Ng8 Qa4 d1Q Bc4 Rg3 Nc3 Ke8 e7 Q1d3 Bd2 Rg7 Be6 Qc4 Be1 Nb4 Na6 Nf6 b8N Rgg8 Nc5 Qe2 Nb3 Nc2 Qh4 Qdd1 Na6 Qf1 Nb4 Nd4 Kd6 Ba6 c8B Nf5+ Kc7 Rg4 Rb1 Bb5 Na1 Nd7 Rb3 Rd4 Rh2 Rg8 h8R Nc5 Rh7 Be2 Rf7 Nd3 h7 Qc1 h8B Bd1 Rh3 Qb2 Rg3 Qbf2 Rg4 Qg3+ Be5 Rg7 Kb7 Rh7 Bc7 Rh6 Ba5 Rg6 Nh3 g1R Re4 Rg2 Ng1 Rf2 Rf4 Ng7 Bg4 Nf5 Be6 Bh6 Re4 Bf4 Kc8 Bc7 Rf4 Bd8 Na6 Rd5 Ra4 Rd4 Nb4 Qgh3 Bh5 Rgg2 Bg4 Qg3 Rh7 Ng7 Bd7+ Kf7 e8N Kf8 Nc7 Nf5 Rh6 Kf7 Be6+ Kf8 Na8 Ke8 Rf6 Rd7 Nac2 a1B Ne4 Rd6 Rf7 Bd4 Nc3 Bc5 Na1 Rd4 Bd7+
bqR1K1Qn/4R3/1NP1P3/nq4b1/Np6/2RB4/NRrR1qBk/B4nrN b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 h4 f5 e4 b5 a4 b4 c4 d4 c6 g6 c5 d3 a6 d2 c7 Nc6 a5 Bd6 a7 Nh6 a6 Ng4 h6 Nb8 h7 Qf6 h5 Qg7 Kg5 f4 h6 f3 Qb3+ Kd7 e6+ Kc6 e7 d1N e8R f2 e5 Nb2 Ra2 Bf5 c8N Rg8 h8R Nd1 h7 Nde3 Bb2 Qf8 Ne2 Nh6 Nb6 Be4 Nbc3 Nf7+ Kf6 g5 Re7 g4 Rh3 g3 Nba4 g2 Ng3 g1Q Bd3 Nf1 Nh1 Qg3 e6 Bf4 Ba1 Bf3 Rd2 Bg5+ Kf5 Rg6 Na2 Qh4 Qb2 Kd5 Qg7 Nc6 Qg8 Rc8 a8N Na5 a7 Rc7 Rb2 Qb8 N8b6+ Kd4 a8B Ke3 Rh2 Bc6 Rd2 Kf3 Rh3+ Kg2 Rf3 Bd7 Rh3+ Kg1 Bg2 Bc6 Re3 Ba8 c6 Kh2 Rb2 Rd7 Ree2 Rd4 Rec2 Rc4 Rc3 Bf4 Rd2 Rg3 Rb2 Bg5 Kg6 Qhf4 Rd2 Qfe5 Rb2 Qb5 Kg7 Ne3 Kg6 f1Q Kg7 Qf2 Rd2 Qc7 Kf8 Nf1 Ke8 Rc5 Qg7 Qb7 Rf8 Rg4 Qg8 Nh8 Rf5 Qc7 Re5 Rg3 Ree2 Qcf4 Rb2 Qe5 Red2 Qc7 Bh3 Rg1 Bg2 Qb8+ Kd7 Bb7 Rc1 Qbf4 Rf7 Ng6 Ke8 Ba8 Rc7 Qd6 Rc8 Qb8 h8R+ Bh6 Rh7 Nh8 Re7 Bg5 Rc3 Rc4 Rcb3 Rc2 Rc3
N3B1R1/2qBK1nq/bP2bQ2/3r3p/1NR4P/N6R/qBNNr3/2nB1b1k b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 f5 d4 e5 dxc5 Be7 g3 Bg5 fxe5 f4 Bd2 f3 Bc1 Bf4 gxf4 Kf7 Ra6 Kf8 Ra1 Ke8 Kf2 Ke7 Ke3 Ke6 Ke4 g5 c4 a5 h4 h5 b4 a4 f5+ Kf7 Kd5 a3 Kd6 g4 e4 f2 b6 a2 f6 Kg6 f7 g3 f8N+ Kg7 b5 g2 b7 Nh6 c6 Qe8 e6 Kf6 c7 Na6 b8N Rh7 b6 Re7 c5 Nb4 c6 Bb7 c8B Qf7 c7 Bd5 e5+ Kf5 Nf3 Ke4 Na6 g1Q Na3 Qh2 Bb2 Qh7 Be2 f1B Rc1 Nd3 Nb4 a1Q Rc4+ Ke3 Qe1 Ra5 Qc3 Kf2 Bd1 Kg2 Nd2 Qa2 Qd4 Qf4 Rh3 Nc1 Qc3 Re8 e7 Be6 Qd4 Qh2 Qf2+ Kh1 Qf6 Rd8 e8N Ra4 Kc5 d5 Bd7 d4 Kd6 d3 c8R Ra7 Nc7 Nf5+ Kc5 Ng7 Kd6 Ra5 Ke7 Rd5 Rb8 Rc8 Na8 Rd8 Nbc2 Rc8 Ng6 Rd8 Nf4 Rf8 Nf3 d2 Nd3 Rc8 Ndb4 Rcc5 Be2 d1B Nd2 Rb5 Bg4 Bde2 Rg8 Bd3 Bd1 Rbc5 Rd4 Ba6 Rf4 Rc3 Rd4 Re3 Rc4 Bf5 e6 Re2 Kd8 Bg4 e7 Bf5 e8B Be6 Rf3 Qf4 Ke7 Qc7 Rh3+
q2B1bN1/N2R2q1/Bp1qb3/kR2B3/Bn1N4/P1P1B3/r4r1Q/R2K1nrN b - - 0 1 illegal: No possible last move, all moves rejected
B2B1N2/7B/PBN2bnr/K1R2Q1p/1R2qN1b/1BPq2k1/3n1rbR/2R3n1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Kc3 e5 Kb4 d5 a4 h5 g4 b5 f4 d4 f6 Kg6 f5+ Kf7 a6 e4 c3 d3 a7 d2 g6+ Ke8 g5 Kd7 g7 e3 a5 e2 a6 e1B f7 Qf6 g6 Qe7 f6 Ke6 Na3 Kf5 Bc4 Kf4 Rh2 Qc7 Qc2 Qc6 Qf5+ Kg3 Nc2 d1N Ka5 b4 Be3 b3 Nh3 b2 Rc1 b1Q Nd4 Nb2 Bb3 Qb7 c6 Rh6 c7 Qd3 Nc6 Be7 f8N Nd7 f7 Ne5 Bb6 Bf6 Nf4 Ne7 g8B Nf3 g7 Ng1 Bh7 Ng6 g8R Be6 c8R Bd5 Rc7 Bg2 Rh8 Re8 a8B Re2 Rc8 Rf2 Bd8 Na4 Rb8 Qe7 Rb4 Nc5 Rg8 Qee2 Bb6 Qg4 Rg7 Ne4 Bd8 Nh8 Rg5 Ng6 Nh3 Rf1 Qf4+ Kh4 Rc5 Nd2 Qf5 Qge4 Nf4+ Kg3 Bb6 Kf3 N8e6 Bf2 f8B B2h4 Be7 Rf2 Bed8 Kg3 Nf8
n7/Kb3n2/P1p1qN2/Q1R1nQ2/3rq1R1/1Q1qQ3/2rNQP1R/B1kQb2B b - - 0 1 illegal: No possible last move
k3K2n/1R5P/rqR2PNr/q2B1B1R/1R3bN1/1nQp3b/1R6/1nQ1R1Bb b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 e5 Kc3 d5 Kb4 Kd7 Kb5 Kc7 a4 g5 h4 g4 f4 g3 c4 g2 a6 b6 f6 e4 f7 e3 a7 Kb7 c6+ Kc7 h6 e2 h5 e1Q c5 d4 h7 d3 a5 Qg5 a6 Qgh4 f5 Qg4 h6 Bg7 f8R Bb2 f6 Ne7 Na3 Qgh4 Rf7 Qh3 Rh2 Qhh4 Be3 Nd7 Nc4 Ba3 Nh3 g1N Qc1 Bb4 Ne5 Nb8 Ng4 Bf5 Nf4 Nd7 Rb2 Ng6 Bh3 Nf3 Bg1 Qhf2 Qc3 Qe5 Re1 Nd2 Rg7 Kc8 c7 Nb1 Kc6 b5 Qc1 Bd2 Qc3 Rb8 a8B b4 a7 b3 Qc1 Qc3 Kd6 Rb4 Bd5 Ra4 Rf7 Qa5 a8R+ Nb8 Ra7 Nc6 Rb7 Nd4 Rb4 Be4 Qc3 Bh1 Rd7 Ne2 Ke6 Nd4+ Kf7 Qe3 Nf2 Ra1 Bf5 Bc1 Ng4 Bd2 Ra2 b2 Qc1 Nb3 Qc3 Rg8 h8R Qd4 Rh7 Nh8+ Ke7 Rg5 Ke8 Rh5 Ng6 Bf4 Qc1 Na3 Qc3 b1B Rb2 Ba2 Qc1 Nb1 Qc3 Qc4 Qc1 Qca6 Qc3 Qc6 Qc1 Qab5 Qc3 Kb7 c8R+ Ka6 Qc1 Qcb6 c6 Q5a5 c7 Ka7 Rde7 Rh3 R7e5 Rh4 Rd7 Rh3 h7 Rh5 Rb8 Rh6 Rb7+ Ka8 Rd6 Nd4 Rde6 Bc4 Rc6 Nb3 Bde4 Be6 Bd5 Qaa7 Qc3 Ra6 Qc1 Qa5 c8Q+ Qb8 Qd8 Bc8 Qd6 Qbc7 Qdc5 Qcb6 Q5c3 Be6 Bfe4 Bc8 Rh5 Bf5 Nh2 Bg4 Bf5 Bh3 Ng4
2r2r2/N5bp/1R1P1bBq/P2N4/B1q1qBN1/2k2bKN/1R1nBn1R/1B3Q2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 f4 e5 Kf2 b5 a4 c5 g4 b4 f6 c4 f5 c3 d6 b3 d7 e4 d5 b2 a6 e3+ Kg3 c2 d6 e2 a5 Bg7 a7 Bh6 g6+ Kf8 g5 Nc6 g7+ Kf7 Ra2 Nb8 Rh2 Ba6 Nc3 b1Q Bf4 c1B Rb2 Qc8 d8N+ Ke8 g6 Kd7 f7 Bb5 f8R Bc4 f6 Na6 f7 Nc5 Nc6 Ke6 Nh3 Nf6 g8B Ng4 g7 Nb3 Nd5 Qe4 Re8+ Kf5 f8N Nf2 Nd7 e1Q Bf7 Be2 g8B Nd2 N7f6 Bg7 Ng4 Bf3 Be2 Qh1 Qf1 Qc7 Rd8 Rc8 a8B Bf6 Na7 Qcc4 Rb6 Bcb2 Bc6 Bg7 Bh5 Bbf6 Bgf7 Rf8 Ba4 Qe3 Be6+ Ke4 Bf5+ Kd4 Bhg6 Qe7 Bb1 Qe4 Nde3 Kc3 Rd7 Qf5 Rdb7 Qh5 Rb2 Qh6 R7b6 Qe4 Qg2 Qc1 Qf1 Qcc2 Qg2 Qcd3 Qf1 Qdc4 Nd5+
n3QBn1/5Pk1/bnr2R2/2Bpq3/N1RbB2B/2N1Rq2/1KN3P1/3rb1RB b - - 0 1 illegal: Other
1B1B2QB/1BNQpqn1/K5R1/b4knP/N6q/2B1r1nr/R3P2B/1r1b1N2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 b4 Kd7 h4 a5 d4 c5 Kd2 f5 Kc3 f4 Kc4 a4 b6 a3 Kb5 c4 h6 c3 h7 a2 b7 f3 g6 c2 d6 Ke6 d7 f2 d5+ Ke5 g7 Kf6 d6 Ke6 Nc3 Nh6 g8Q+ Ke5 Nf3+ Kf5 Bd2 c1R Na4 Nc6 b8B Qe8 d8B Bd7 Rg1 Qf7 Bc3 Rb1 Nh2 Bg7 Bg2 f1N Bh1 Ng3 Nf1 Be6 d7 Ne5 Bb7 Bb3 Bbc7 Rc8 Ka6 Nf3 b5 Ng5 b6 Be5 Qd6 Bd1 Bb8 Bd4 Bdc7 Bc5 d8B Bb4 Qc6 Ba5 Qd7+ Ne6 B7e5 Rc4 Bf4 Re4 Rg2 Re3 Bfe5 Nh5 Bh2 Ng7 Rg6 Rb5 Rb1 a1Q Rb2 Qc1 Ra2 Rb1 Bd5 Qd2 b7 Qd4 Bh1 Ng4 Bd5 Nf6 Bh1 Ne4 h5 Ng3 Bd6 Qdf6 b8N Qh4 Bb7 Rb3 Nc6 Ra3 Bb8 Rb3 Nb4 Ra3 Qd4 Ng5 Nd5 Rb3 Nc7 Rb1 Qf8 Rg8 h8B N7e6 Na8 Nh3 Bb6 Nh1 Rh6 Rgg3 Rg6 Nhg5 Qd7 Rh3 Bd8 Ng3 Nc7 Qb4 Qd6 Qh4 Qg8 Ng7 Qd7+
qQ2n1KN/1BN1pBb1/1P1bB2R/n7/1R1PR1bB/knr1q3/5BQ1/3B3r b - - 0 1 illegal: No proof kernel
N2Qqn1b/3Pq3/R2Q2br/1R1Nr3/3Pn3/1p1q2BB/BK1k3B/1BrB2R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kf7 g4 e5 a4 h5 g6+ Kf6 d6 b5 a6 c5 g5+ Kg7 d7 e4 a5 b4 a7 c4 a6 c3 Bh3 h4 Ra5 e3 Na3 e2 Rb5 c2 Nc4 Rh5 f6+ Kh8 g7+ Kh7 f5 Nc6 g6+ Kh6 f7 Kg5 f6+ Kf4 Nb6 Bd6 f8B Rb8 a8R Rd5 a7 Be5 f7 Ba6 Bd6 Qc7 f8Q+ Nf6 g8B Nd8 g7 Qc3 Bh7 Qd3 g8B Ne6 Qd8 Nf8 Bf7 Rc5 Ba2 b3 Ba3 c1Q Bc7 Rd5 Bad6 Rc8 Bb8 Qa3 Be4 Qe3 Beb1 Rc1 d3 Qe4 Kd2 Qg6 Bdc7 Qe7 Bd6 Qge8 Bdc7 e1R Ne2+ Kf3 Rg1 Rd6 Nc3+ Kf2 Bg2 h3 Ncd5 h2 Bh3 Rdc6 Bd6 h1Q Bbc7 Bb2 Bh2 Re5 Bd6 Qe4 Bc7 R1c5 Bb8 Bc3+ Kc1 Qe2 Qd2 Ne4 Qh6 Qf3 Qd6 Ke2 Bg3 Bd2+ Kb2 Rc1 Bc7 Bb4 Bh2 Kd2 d4 Qd3 Rb8 Ba5 Na8 Rb6 Rb7 Rbc6 Bb8 Bc7 R7b6 Bb7 Ra6 Rb6 Nf6 Bd5 Bg3 Bf7 Nd5 Rbc6 Nab6 Bg6 a8B Rh5 Bb7 R6c5 Na8 Rh6 Qc6 Be5 Bh2 Bf6 Bbg3 Bh8 Qd6 Ng5 Ndc7 Re5 Bf3 Ne4 Nd5 Reh5 Bfg4 Re5 Bd1
2N4N/P2bbR2/1R5n/6Bn/3P1Q1N/2r1rqNB/1p1K2Qq/kN1nrB1N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kd7 h4 Kd6 d4 e5 f4 b5 f6 c5 a6 g5 h6 e4 h5 g4 f5 b4 a5 g3 f7 e3 f6 g2 a7 b3 a6 c4 h7 c3 h6 b2 Nh3 g1R Qg4 e2 Qg2 c2 Bg5 c1N Kd2 Be7 f8Q Qc7 f7 Bb7 Nf2 Kd7 d6 Ke6 d7 Kf5 d8N Bc6 Nb7 Na2 Nc5 Nd7 Nce4 Re8 a8B Nc3 a7 Ndf6 Ra6 Nh5 Rb6 Qh2 Ng3+ Ke6 Bb7 Nd1 Bc8+ Kd6 Bh3 e1Q+ Kd3 Qe4+ Kd2 Ra8 Qb8+ Kd5 f8N Bd7 Ng6 Qf3 Qf4 Rc8 Nh4 Rc3 Bg4 Ngf6 Bh3 Re8 h8N Ng4 h7 Nh6 Nf7 Re3 h8N Rc8 Nd6 Rcc3 Ba6 Rf1 Nc8 Rfe1 Bb7+ Kc4 Rf1 Rc1 Bc6 Rcc3 Bb5+ Kb3 Nfh1 Ka2 Rf2 Ka1 Bf1 Qc6 Qg4 Qe4 Rf7 Qf3 Qf4
r1R2q1r/PB1Bp1N1/1Q1B1bBP/5q2/1Kb3R1/Q2Bnqn1/N3B3/1Q2k2n b - - 0 1 illegal: No proof kernel
Qn1Q1KQ1/3rRQN1/Q6r/4PPq1/1N2nB1k/1p2Nn2/1bBnQ1b1/R6n b - - 0 1 illegal: No proof kernel
1Bk1B2n/5RKR/2r2PRn/2N5/nn2Nq2/1R1nR2b/Q1pB2P1/2Q1brR1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 h5 Kf4 a5 Ke5 c5 d4 c4 b4 h4 f4 h3 d6 e6 b6 c3 g6 c2 f6 a4 d5 a3 g7 a2 b5 h2 f7 Rh4 b7 Rh3 b6 Rh8 f5 Qe8 Ne2 Rh7 Nf4 Ra5 Nd2 Na6 b8R Rc5 b7 Nb4 Ne4 Rc6 Bd2 Nh6 Kf6 e5 g8R Qd8+ Kg6 Qh4 Ne6 Qf4 f6 Be7 f8Q Nf7 Bb5 Rh4 Qg1 Nh8+ Kg7 Rh6 Rd1 a1N Qf7 Nb3 Ra1 Rh3 Qc1 Nc5 Ra3 Rc3 Rg1 Rf3 Re3 h1N Rf8 Ng3 Qg8 Rf1 Rf7 Ng6 Ba4 Nf8 Bb5 Na4 N6c5+ Kd8 d7 Nf5+ Kh8 Kc7 d8R Nh6 Kg7 Ng6 Rd6 Bh3 Rd7+ Kb6 d6 Nh8 Rc7 Ka7 d7 Bd6 Ng5 e4 d8R Be5 Rdd3 Bc3 Rg3 e3 Nge4 e2 Rg6 e1N Re3 Ned3 Rce7 Rb6 Be8 Re6 Rd8 Rc6 b8B+ Ka8 Rdd7 Bd4 Rf3 Bf2 Rb7 Be1 Re3 Na6 Rb3 Nab4 Nd7 Kb7 Ndc5+ Kc8 Re5 Ng4 Rh5 Nh2 Rh7 Ng4 Qf8 Nh6 Qe7 Qf3 Qa7 Qf4 Qa5 Nc3 Qaa1 Na4 Qa2
3BbN1n/6rN/1N1nNrkq/R2KR1nn/1R6/r2P2B1/1Qp3BP/N3bB2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 f5 Ke3 Kf7 Kd4 a5 b4 g5 e4 a4 h6 c6 b6 f4 e6+ Kf6 h7 g4 b7 g3 e7 f3 e8B a3 b5 g2 b6 a2 d3 f2 e5+ Kf5 e6 Ra5 d6 c5+ Kd5 Nh6 e7 Ng8 d7 Nh6 Nd2 Ra3 Nb3 c4 Nh3 g1N Qe2 c3 Qb2 c2 Bf4 Rg8 h8B Nf7 Bg3 Rg7 Ng5 Nd6 Nh7 Nc6 b8N Ne5 b7 Qb6 d8N Nef7 Nd7 Kg6 b8N Nf3 Ne6 Ng5 Rg1 Qa6 Nb6 Bd7 Rg2 Bb5 Bc6 Ba4 Rb1 a1R e8R Be7 Rg1 Bf6 Ba8 Bc3 N8d7 Be1 Bc6 R1a2 Na1 Bb5 Qd4 Ba4 Rb4 Bb5 Qb2 Ba4 Bh3 f1N Ra8 Bb5 Rg2 Ba4 Re2 Bb5 Re5 Ba4 Bf4 Ng3 Bf1 Nh5 Bg3 Bb5 Nc4 Qb6 Ra5 Qe3 Ncb6 Qc1 Ba8 Qe3 Ndc5 Be8 Ncd7 Qd2 Rab5 Ra6 Ra5 Ra3 Bb7 Rg8 Bg7 Nh8 Bf6 Rg7 Bd8 Ngf7 Kc5 Qh6 Bbg2 Ng5 Kd5 Ra7 Nb8 Raf7 N8d7 Rf6 Ndf8+
Rb3b2/1Nq1Rr1n/2Q3Nn/5Nk1/bQ2K1bp/1P5B/1Nr3PR/1r1N1NB1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kf3 a5 d4 h5 e4 c5 b6 f5 b7 h4 e6 a4 g6 Kf6 e5+ Ke7 d6+ Ke8 e7 f4 d5 c4 g7 Kf7 e8N Kg6 e6 c3 b3 a3 e7 c2 d7 a2 d6 Kh5 Nc3 Qc7 d8N Rh7 d7 Rh8 Be2 Nc6 b8Q Rh7 Ke4+ f3 Qd6 Qb6 Rh2 Rh8 Nd1 Rh7 Nb7 Nd8 Nc5 Ra5 Na4 Ra6 Be3 c1B Nab2 Qc7 Qbb4 Ne6 d8N Rc6 Nb7 Rc2 Qc6 Nh6 g8N Rf7 Ned6 Kg4 Bd4 Kg5 e8R f2 Nf5 f1B Re7 Bf4 Bg4 Bb5 Ne2 Ba4 Neg3 Bd6 Bg1 Be5 Rc1 a1R Nf1 Rb1 Bh3 Bd4 Rd7 Ba7 Nge7 Bb8 Ng6 Kf6 Qcb5 Ng5+ Kd5 Nh7 Qc6+ Kg5 Nfe7 Bb5 Ke4 Ra1 Rb1 Qg3 Rc7 Bg4 Nf5 Qd6 Re7 Qd8 Na4 Qc7 Rb2 Rb1 Ra2 Rg7 Nab2 Rf7 Ra7 Ba4 Ra8
b4BBK/1b1Q1B2/3R1r1n/N6R/qR2P1Rn/1bN3R1/1P1B2p1/2b1kNrr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 h4 a5 e4 d5 c4 a4 h6 a3 h5 d4 b6 g6 h7 a2 c6 d3 c5 d2 c7 Nd7 h6 Bd6 c6 Ba3 b7 Rb8 Rh3 Nc5 Ne2 Qd4 Kg5 f4 Ng3 f3 Nc3 f2 Be2 Bd7 c8R f1B c7 Qa4 Rd8 Bb4 c8R Nb3 Rc4 Bc6 Rd7 Bd6 Rb4 Rf8 b8N Ba8 Nc6 Rf6 Na5 Nd4 Rh4 Bc5 Rg4 Nf5 Rdd4 Bh3 Nf1 Nh4 Rd5 Bb6 Bc4 Bd4 Rb1 a1R Rg3 Bf5 Qg4 d1B Bd2 Bb3 Rd6+ Ke7 Rd1 Bc8 e6 Bcb7 Re1 Bc5 Ree3 Re1 Ref3 Be3+ Rf4 Re2 Qf5 Rg2 Qb5 Rg1 Qc6 Bd1 Ba2 Bb3 Qd7+ Kf8 e7+ Kf7 Be1 Bc1 Bd2 Bc8 Rfg4 Ba6 Qa7 B6b7 e8B+ Ke7 Rd5 Ke6 Rd6+ Ke5 Bf7 Bc6 Qd7 Bcb7 Rg2 B3d5 Bc4 Kd4 Ba2+ Kd3 R2g3+ Kc2 Bc4 Ne7 Ba2 Bb3 Bg8 Nef5 Bf7 Rg8 h8B Rh1 h7 Nh6 Bg7 Re6 h8R Rf6 Nd5 Kd1 Bf8 Ke2 Be3 Ke1 Nc3 Rf3 Bf4 Rf2 Kf6 g5 Nh2 Rff1 Rh7 Rfg1 Nf1 Rg7 Bg8 Re7 Be3 Re6+ Kg7 Rg6+ Kh8 Rf6 Rf4 g4 Bf7 N6f5 Rh5 Nh6 Bg8 Bd1 Baf7 Bb3 Rh3 g3 Rg4 g2 Rhg3 N6f5 Bf4 Nh6 Bd2+
N2Rrr2/5BQR/bN1N2KN/B2q1N1N/2P2b1P/2QBb2p/n1n3n1/3k3n b - - 0 1 illegal: No proof kernel
2k5/2rN2rB/QRQ1b2n/4q3/RQpbb1n1/1P1NQQQ1/3P2K1/rb2N1B1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 e4 a5 g4 c5 d6 h5 g6 f5 e6+ Ke8 g5 a4 b3 a3 b6 f4 e7 Kd7 b7 f3 g7 a2 e5 c4 g6 h4 e6+ Kc6 e8Q+ Bd7 e7 h3 Na3 h2 Ne2 Ra4 Nf4 Nf6 g8Q Rb4 g7 Nh7 Qe6 Rg8 Nd3 Qa5 Bb2 Qg5 Bd4 Nf6 Nc2 Qe5 Nce1 Rb6 Rg1 h1B Rg6 Ng4+ Kg1 Rb4 Bh3 Nh6 Bf5 f2+ Kf1 Bd5 Qf3 Ra4 Kg2 Ra7 Rf6 Be4 Bh7 Qh5 Qg6 Qe5 e8Q Be7 Qg5 Bd8 Qf4 Bb6 Qe3 Bc5 Qf8 Bc8 d7+ Kc7 Qee8 Nc6 d8Q+ Kb8 Qa5 f1B+ Kg1 Bh3 Qa6 Bhf5 Kg2 Kc7 b8N Bce6 Nd7 Bg6 Bb2 Bd4 Qb4 Rb7 Qea8 Rc8 g8Q Bgf5 Rd1 a1R Qg3 Rg8 Rb1 Rg7 Bc3 Bg6 Rb2 Ra7 Ra2 Bgf5 Q8b7+ Kd8 Q7b6+ Rc7 Ra4 Bg6 Nb2 Bb1 Nbd3 Be4 Qbb7 Qd6 Q7b5 Ne5 Qbc6 Neg4 Rg6 Bc5 Bd4 Qe5 Qef4 Bb6 Bg1 Ba7 Qe3 Bd4 Rg5 Qd6 Rb5 Qe5 Rb7 Kc8 Rb6+
1B2Q2n/1Q1QnbK1/QRN2R1r/2k5/1Pr1Qp1q/b3P3/R2nN2n/1B2Qb2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 h5 Ke4 a5 Kf5 c5 d4 a4 g4 c4 b6 h4 g6 h3 g7 c3 g5 h2 g6 a3 b7 c2 d6 Kc6+ e6 a2 d7 f6 e7 Kd5 e8Q Ra7 Bf4 c1N e3 Bd6 Qe1 Be5 Ne2 Na6 b8Q Rh3 Na3 Rh4 Nb5 Rc7 Na7 Nc5 Nc6 Ba6 Qb7 Bd6 Qe4+ Kc4 Be5 Ne6 d5+ Kc5 Rg1 Bf8 d6 h1B Bf4 Qe7 d8R Ng5 d7 Nb3 Rb8 Nf7 d8Q Rh6 Qd7 Nd2 Bh3 Bc4 Rf1 Nf3 Qa6 Rc8 Rb6 Nh2 Bb8 Nh8 Rf3 Qd8 Rf2 Bd3 Ke6 Rc7 Bf5 Ne7 g8Q Bf3 g7 Bh5 Bg6 f5 Kf6 Rc8 Qf7 f4 g8Q Bb5 Rg2 Bc4 Qgg7 Rc7 Qfe8 Bb5 Rd1 a1N Rg1 Nb3 Ra1 Nd2 Ra2 Rh7 Bf5 Bf7 Rg6 Rh3 Qee6 Bc4 Bb1 Rh6 Qe4 Rc8 Ng3 Bf1 Qdb7 Qd7 Ne2 Qh3 Qh7 Rd8 Qg7 Rd4 Qbd7 Rc4 Qdb7 Nc8 Qh7 Bd6 Kg7 Qh4 Rf6 Ne7 Qhf5+ Be5 Qfc8 Bc3 Qed7 Bb4 Qce8 Ba3 b4+
b2n4/BN1qb2N/BB6/1B2NnPk/4R2B/2n3pr/rR4Pn/Q2RKR1r b - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 fxe5 d5 axb5 g4 c4 Bg7 cxd5 Qg5 hxg5 Bf8 Ra2 Ba3 e4 f5 d4 Be7 b4 Kf7 Bf4 Kg6 e6 c5 e5 h5 b6 a5 d6 h4 b7 h3 d5 c4 b5 a4 d7 h2 d8R c3 b6 a3 d6 c2 d7 c1N Nd2 Na6 b8B Rh7 b7 Bd6 e7 Nb4 e8R Nh6 e6 Ne2 e7 Nc6 Bg3 f4 Ne4 f3 Bc7 Nf5 b8B Rh3 Nf6 Bb7 Bh4 g3 Nh7 Kh5 Bb6 Ra4 B8a7 Ba8 Rc2 a2 Qc1 a1Q Rb2 Nc3 Ba6 Ra5 Qb1 Qa4 Qa1 f2+ Kf1 Qc2 Nf3 Qa4 Rg1 Nb1 Ke2 f1N Ke1 Nc3 Rh1 N1e3 Rf1 h1R Rg8 Qc4 e8B+ Qf7 Rg6 Ra4 Re6 Ng4 Re4 Ra2 Ne5 Nh2 Rc8 Ne2 d8N Bc5 Nb7 Nd8 Ba4 Qd7 B4b5 Be7 Rc1 Nc3 Rd1
4k1b1/N4R1R/2n3K1/2rbP1N1/1qBbN1PR/2bpB1n1/2BRr3/r2Q1R1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 a5 Ke3 d5 Kf4 f5 c4 h5 g4 a4 b4 h4 e4 h3 g6 d4 g7 a3 e6 a2 e5 h2 e7 Qb6 Kg5 f4 c6 f3 c7 f2 c5 Kf7 e8R Bd7 c8B Rh6 c6 Ra7 c7 Bf5 Ne2 Rf6 Nd2 Ra4 Nf3 Bd7 Rd8 Rh6 Be3 Na6 Ng3 Qa5 b6 Rh7 b5 Qc3 b7 Bc5 b8R Qb4 b6 Nf6 g8N Nh5 b7 Be6 Bc4 f1R Nf6 Rf2 Nfe4 Re2 Rd5 Kf8 Kg6 Ke8 Nfg5 Bg8 Rb1 a1B Bf5+ Ke7 c8R Bc3 Rf8 Ra1 Rbd8 Ba7 b8N Bb6 Rf1 h1B Rb5 Bf3 Nh1 Ng3 Rb2 Bc5 Rd2 Rh8 Rd6 Ba7 Rf7+ Ke8 Nc6 Nb8 Rbb7 d3 Bfe6 Bad4 Na7 Nc6 Rh7 Nb8 Rbf7 Nc6 Bb3 Bg2 Bec4 Bf3 Bc2 Bg2 Nc5 Bd5 Rh4 Rh7 Nce4 Rh8 Rdf6 Rh7 Rb7 Rc7 Rf7 Ne7+ Kg7 Rc5 Rd7 Nc6 Kg6 Rca5 Rfh7 Rc5 Rdf7
KR3Nnk/3R1qnQ/4R1P1/1R3b2/N1PR1bn1/3N1r2/pn1b2rQ/B4BR1 b - - 0 1 illegal: No possible last move, all moves rejected
n1bB3n/R3Q1r1/4bQP1/nKR1bP2/1RR2N2/NB3R2/1np1Rq1k/3r1N2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 d4 h5 g4 a5 b4 e5 f6 c5 d6 h4 d5 h3 g6 a4 g7 h2 g5 a3 d7 a2 d6 Ra6 g6 Rh5 b6 Nh6 g8R Ra7 f7 Qh4 d8N Qg5 b5 Qg3 b7 Qg4 d7 Bg7 f8R Qg3 b6 Qf2 Na3 Nf7 Qd6 Nh8 Ne2 Kf3 Ne6 e4 d8Q e3 Q8e7 Be5 Kb5 c4 Ng3 c3 Bc4 Kg2 Bb3 c2 Re1 h1B Re2 Nd7 b8R Kh2 b7 Bd5 f5 Rh4 Nf4 Nb6 Qdf6 Na8 Rg7 Bde6 Nf1+ Kh1 Rb1 a1N Rd8 Rh7 Rd4 Kg1 Rf7 Rg7 Rc4 Ra6 Bd2 Rd6 Ba5 Rd1 Bd8 Kh1 Ba4 Kg1 Rbb4 Nb3 Rc5 Na5 Bb3 Kh1 Rbc4 Kg1 Rd2 e2 Rd3 e1N Rf3 Nb6 Ra8 Nd3 b8R Nb2 Ra7 Na8 Rb6 Rg8 Rh7 Rg7 Rh2 Qe1 Re2 Qf2 Rbc6 Kh1 Rb4 Kg1 Rcc4 Kh1 R6c5 Kg1 Ne3 Kh2 Nf1+
1n5k/4b2N/2Prbn1r/qBnN4/2QRRR2/3r1Pr1/3BKBpR/2N1N1N1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 h4 d5 b4 g5 f6 a5 c6 e5 f3 e4 c7 e3 c5 d4 h6 d3 h5 d2+ Ke2 a4 h7 a3 h6 a2 b6 g4 c6 g3 b5 g2 b7 Na6 b8B Nb4 b6 Ra5 b7 Qd7 Qc2 d1R Na3 Qh3 Rh2 Rdd5 Bd2 Ra7 Qc4 Ra4 Rd1 a1N Ba7 Bg4 b8R Ra6 c8N Bf5 Ne7 Be6 Re8 Nb3 Nc2 Qf5 Ne1 Rd3 Nd5 Ra4 Bd4 Kg6 f7 Be7 f8N+ Kf7 Rh4 Na6 Rf4 Nf6 Bb6 Rg8 h8R Rg3 h7 Kg7 Bc5 Nb8 Bb6 Bb4 Ba7 Nc5 Re7+ Bf7 Ree4 Be6 Qb3 Bg8 Rc4 Qg4 Nb6 Nb7 Bc1 Qg5 Nc2 Be7 Ke1 Rd2 Be2 Ra5 Rce4 Rc5 Qd5 Qh4 Bb5 e2 Qc4 Rd6 Kf2 Rh5 Nd5 e1R Rd2 Rd1 Ke2 Ne8 Rd3 Qf6 Ne1 Rh6 Bae3 Qa1 Rdd4 Rd3 Bcd2 Ra3 Bf2 Rhh3 Nd7 Rh5 Ne5 Be6 N5d3 Nf6 Nc1 Rh4 Re8 Rc3 h8N Nc5 Ng6 Rd3 Rh8 Qa5 Nf8 Rh5 Rh6 Kg8 Nh7 Kh8 Rg6 Rh1 Rg5 Rh6 Rh5 Rhg6 Rh1 Rh6 Rh2
kNb5/5K2/1P2Q3/QQb1Qp2/1r1nB3/1nP1R1RN/1Qq1nb1B/2B1r1Qn b - - 0 1 illegal: No possible last move
n3N2N/1Q2r1rk/P7/Bb1Bqnb1/6B1/3rBKp1/rB4BP/bR1RR2Q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 g5 a4 b5 e4 f5 d4 Kf7 h6 Kg6 d6 c5 h7 b4 e6 g4 e7 c4 e8B+ Kg7 d7 f4 d5 b3 d6 g3+ Kf3 c3 e5 c2 a6 b2 a5 Ra7 e6 Qb6 d8R Rd7 a7 Nf6 a8B Kh6 e7 Nh5 a6 Qc7 Bg2 Rg8 h8B Ng7 Ne2 Kh7 Re1 Nf5 Be3 c1B Na3 b1R Nc4 Rg7 Bd5 Rb2 Bh5 Ra2 e8Q Rde7 d7 Qe5 Bg4 Bb7 Qb3 Bc6 Qb7 Bb5 Nd6 Bb2 Rad1 Bd4 Rc8 Ba1 d8B Nd7 Rcc1 Nb6 Rb1 Na8 Qed7 Rgf7 Bc7 Bh6 Ne8 Bg5 Bf6 Rg7 Qdc6 Qe6 Bb2 Qe5 B4h3 Qe6 Ba5 Qe5 Kg4 f3 Nf4 f2 Ng6 f1R Nh8 Rg1 Kf3 Rh1 Bg4 Rg1 Bh1 Rg2 Qc1 Rd2 Bg2 Rd4 Qc4 Rd2 Qf1 Rd3 Qh1
2RRb3/N2B1nr1/p2RNqn1/b2B1N1K/3BN1P1/b1Nrr1QR/6Pb/6k1 b - - 0 1 illegal: No proof kernel
1n1rRNB1/Br1N1B1P/7N/q2b1r1Q/pP4N1/B1k1b3/2r1R1R1/KnN1n3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Ke7 Kd2 g5 Kc3 f5 h4 a5 e4 c5 b4 c4 Kb2 a4 e6 Kf6 e7 f4 e8R g4 h6 g3 h5 g2 h7 f3 h6 f2 e5+ Kf5 d6 Ke4 e6 Qc7 d7 Qc5 d8N Bd6 d5 Bd7 e7 Nc6 b6 Ke5 b7 Qb6 b8N Qc5 Ne6 Bc8 Ra2 c3+ Ka1 c2 Nf8 Ra6 Ba3 c1R Nbd7+ Ke4 Qh5 Kd4 Rh2 Bb7 Bc4 f1R Re2 Qb5 Nh3 g1N Rhg2 Bf4 d6 Be3 Nf2 Rc2 Ng4 Nf6 Bg8 Rf5 Nc3 Nf3 Na2 Ra7 Nc1 Ne4 Rd8 Rf6 e8B Nb8 Bef7 Bd5 Re8 Rf5 Ndf6 Nc5 d7 Kc3 d8B Nd3 N6d7 Rb7 Bb6 Qa5 Ba7 Nd2 Be6 Rb5 Bgf7 Rg8 h8N Nb1 h7 Rb6 Bg6 Rb5 Nf7 Ne1 Nfh6 Rb7 Bgf7 Rgg5 Bg8 Rg6 Bef7 Rd6 Ndf6 Rd8 N6d7
bKN2Qk1/2n1n1pq/5P1b/r2r2Q1/1B1Qnr2/4RP1Q/2N1N2Q/n2BR1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
2NR1K2/Br3P1Q/R3P3/Bnnb1RbN/4Nnr1/3NRn1k/5pN1/1B3b1q b - - 0 1 illegal: No proof kernel
RqRb1N2/1krbRp2/3P2N1/P1R2n2/QK5b/2rr1RB1/1b5n/1N1BRQ2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 a4 b5 h4 c5 d4 Kc7 Kd2 g5 Kc3 c4 e6 g4 a6 g3 a5 g2 e7 Rh6 e8Q Bc5 e5 Bd6 e6 Ne7 a7 Ba6 Nf3 g1B Rh3 Qd7 Ng5 Rf6 h6 Rg6 h5 Qc8 h7 Rg8 h8R Bg3 d6+ Kb7 d7 Bh4 d8R Nd7 d5 Nf5 d6 Qb8 h6 Nf6 h7 Bb6 e7 Ng4 Rc8 Bd8 Kb4 c3 Rc5 c2 Ne6 Nh2 Rf3 Rg3 Bf4 c1B Be2 Bb2 Qf1 Rh3 Bd1 Rg3 Kb3 b4 Qa4 Bb5 e8R Bd7 Re7 Rh3 Kc4 b3 Kb4 Rg3 Nf8 Rh3 Rfc3 Rd3 Bg3 Rd2 Na3 Rd5 Ne6 Rd4+ R5c4 Bb6 Qe1 Qc8 Bc2 Bc1 Rf3 b2 Qf1 Rd3 Rg8 Rb8 h8N b1R+ Bb3 Ra8 Ng6 Rb8 a8R Bb2 Rc6 Rc1 Rc5 Rcc3 Re1 Qd8 Bd1 Rc8 Rge8 Qc7 Rd8 Qb8 Nef8 Rc6 Rc8 Bd8 Nb1 Rc7 Rd5 Ng4 Rde5 Nh2 Rc5
3Bb1b1/1kpBP1Br/1n1n1P2/2br3R/NbR1R3/qRnN2BK/1B4Q1/2N5 b - - 0 1 illegal: No proof kernel
2b2q1k/bP1r1p1b/1r1B2R1/n1B3NB/1QP3Nr/NR6/BN4K1/nb4BR b - - 0 1 illegal: No proof kernel
b4b1R/K2nQqnk/R4q1B/2N2q2/2p1qB1P/3NBPR1/R2rB3/2N1r2B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 b5 Kd4 g5 Kc5 Kg7 a4 e5+ d6 b4 h4 b3 d4 e4 a6 c6 a7 b2 d5 g4 h6+ Kh7 a5 e3 a6 g3 f6 g2 f7 e2 Bf4 e1Q Qe2 Qc7 Na3 b1Q Nc4 Bd7 Qe7 Qe5 Rh3 Qbe4 Be2 Qg5 Ne5 Qgf5 Ra2 Be6 d7 Qg6 d8N Qa4 d6 Qf5 d7 Qc8 Kb6 c5 Nb7 c4 d8B Qd1 Nc5 Nc6 Ned3 Qf6 Rg3 Qe1 Be3 Nd4 Bc7 Qd7 Bcf4 Rd8 a8R Nf5 a7 Ng7 Ka6 Qg5 Kb6 Bd5 Ra6 Qdf5 Ra2 Kg6 h7 Nf6 Ra6 Rg8 h8R Qf1 Ra2 Nd7+ Ka6 Ne6 Rh6+ Kg7 Rf6 Kh7 Rb8 Rh8 a8B Ng7 Ka7 Re8 Rfa6 Qgf6 Bf3 Qb1 Ne2 g1Q Nec1 Qf1 Bh1 Bg2 Bf3 Qc2 Be2 Ba8 Ne1 Qce4 Ned3 Q1h3 f3 Qhg4 Rd8 Qgh5 Qd6 Re5 Qe7 Rd5 Nb4 Rd1 Nbd3 Rd2 Bg1 Rg8 Rg2 Ne6 Rg4 Bh6 f8B+ Qhf7 Bge3 Rg6 Rg1 Rg2 Rc8 Rf2 Rb8 Rf1 Rg3 Re1 Bg7 Q7g6 Rg8 Qgf7 Bh8 Bf8 Bg7 Q7h5 Bgh6+ Ng7 Be5 Qe8 B5f4 Qef7 Rh8+
2RBB2N/6Q1/k1N1B1N1/2b1N3/qPKBqn2/r3r2n/2P2pbn/2N1nR1R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 d5 Kc3 Kd7 b4 Kc7 h4 Kb7 e4 a5 e6 f5 b6 g5 e5 g4 h6 f4 e7 f3 e8N g3 e6 d4+ Kc4 a4 e7 a3 h7 f2 h5 d3 h6 d2 c6+ Ka6 b7 g2 c7 a2 Nf3 g1N Ng7 Nf6 e8B Bc5 Bh3 Qe7 Nh5 Nbd7 Ne5 Ng4 Nc3 Ndf6 Nf4 Nd5 Nce2 Nh2 Be6 Nh3 Qg1 d1N Nfg6 Ndf4 Bd2 Bd7 c8R Bc6 Nc1 Bg2 Bc3 Rf8 h8N Qh7 Rb1 a1Q Bd4 Qa4 Ra1 Qe7 h7 Rf5 Rb1 Rg5 Ra1 Rg3 Rb1 Re3 b8N+ Ka7 Nbc6+ Ka6 Nhf7 Ra7 h8B Qb7 Bf6 Qa8 Na5 Qe4 Nfh8 Ra8 Bd8 Ra7 Ncd3 Ra8 Nac6 Nb2+ Kc3 Ra7 Rf1 Ra8 Kd2 Ra7 Nc1 Nbd3 Kc3 Ne1+ Kc4 Rg7 Nh4 Rgg3 N4g6 Ra3 Nh4 Rge3 N4g6 Bf3 Qg5 Bg2 Qe7 Rf3 Qf6 Rfe3 Qg7
8/1B1KB3/NqnN2rq/bNNq3b/1Pp2rNB/B1n1PQR1/R1k5/1q5R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 a5 h4 c5 d4 a4 b4 c4 e6 Kf6 e7 a3 e8N+ Ke7 Ke5 g5 e3 a2 d6+ Kd7 h6 f4 d5 g4 h5 f3 h7 g3 b6 g2 h6 f2 b7 Ra6 Na3 Ne7 Nh3 g1Q Bg2 f1Q Qf3 Qff2 Nb5 Qc2 Nf2 Rg8 h8B Qd3 h7 Qb6 Ng4 Rg6 Ba3 Qgb1 Bf6 Qdd1 h8R Nbc6+ Kf4 Bg7 Bh4 Bd4 Rg8 Rf6+ Kg5 Rf4 Rg6 Nf5 Rg8 Ng3 Rg6 Ne2 b8N+ Kd8 d7 Ke7 d8N Nc3 Nb7 Be5 Nd8 Bc7 Nb7 Bd7 Ned6 Be8 Rg8 Bh5 Nc5 Qdd3 Ne8 Qdd1 d6+ Kf7 d7 Qd5+ Kh6 Bd8 Rg5 Ke7 Kg7 Bc7 Ned6 Bd8 Nb3 Ke6 Kg8 Bc7 Rg7 Qg6 d8B Qh6 Bde7 Bd8 Raf1 a1Q Rf2 Qb1 Ra2 Bf7+ Kf8 Bh5+ Nf7 Kf5 Ke8 Qa7 Rg6 Ba5 Nc5 Qb6 Rg8 Ra7 Nba6 Rd7 Ne5 Rd6 Rg3 Rg6 Ng4 Qd2 Bef6 Nd4 Qf1 Qdd1 Ba8 Nc6 Bb7 Qd2 Be7 Qd5 Nd7 Ke4 Qf3+ Kd3 Nfd6 Qb2 Ndc5+ Kc2 Raa1 Qb3 Kd7 Qb1 Ra2+
5B2/nB2k1bb/R2R2N1/p2BNr1q/3PNQ2/2P1K1B1/q1r3RN/1Nrr3n b - - 0 1 illegal: No possible last move
N1q3qR/4RBb1/1Qb1b1P1/B1NBnBQ1/3Q1b2/B1r2k1p/KP1r4/n1B5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 e4 Kd7 d4 h5 Kd2 a5 Kc2 f5 Kb3 c5 g4 a4+ Ka2 h4 d6 Ke6 d5+ Kd7 g6 f4 g7 a3 e6+ Ke8 e7 Kf7 e8B+ Kf6 e5+ Kg5 b6 c4 b7 c3 e6 c2 e7 Ra7 d7 Na6 b8Q Nh6 g8Q+ Bg7 d6 Bb7 Nd2 f3 Nh3+ Kf6 g5+ Kf5 Bg2 Kg4 Bf7 Nc5 e8B Bc6 Nf4 Qc8 d8B Nb3 d7 Rc7 Nc4 h3 Qb6 Rh7 Qdd4 f2 Re1 f1B Be7 Be2 Bg6 Nf7 d8B Ne5 Bef7 Bef3 Bh1 Bfd5 Nd3+ Kg3 Nc5 Be6 Bd5 Rh6 Be3 c1B Bf5 Bd2 Rad1 Na1 g6 Rh5 Qh7 Rh4 Qh5 Bc1 Bh6 Bf4 Qg5+ Rg4 Re4 Kf3 Rd3+ Be3 Rb3 Rg2 Rb4 Rd2 Ra4 Bf4 Ra8 Ra7 Bc7 Qa6 Rh8 Qc8 Qb8 Rb7 Ba5 Rb3 Nb6 Rc3 Na8 Bed7 Na4 Be3 Qh5+ Ng4 Qbb6 Rdd3 Be8 Nc2 Bg8 Rd1 Re6 Bd2 Qh4 Ne5 Be3 Bc1 Kb1 Rdd3 Qg5 Bd2 Bg1 Bf4 Be3 Rd1+ Bc1 Rd2 Ka2 Rc4 Kb3 a2 Bc5 a1Q Re7 Qb1 Bge6 Na1+ Ka3 Qd3+ Ka2 Qe2 Bcb4 Rc3 Nc5 Qf1 Bb3 Qc4 Ba3 Qg8 Bef7 Be6 Bd5+
Rr1Nn3/B1Qrk1r1/4p1q1/2B1KR1q/2B1n1B1/2PbNR1P/1bB2B2/1Q4r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Kd3 d5 Kd4 b5 f4 g4 a4 e6 h3 g3 f6 g2 c6 b4 a6 b3 a5 b2 f5 Bg7 a7 Qd7 a6 Qd6 c3 Qf8 c7 Kf7 h6 Ne7 h7 Qg8 Nf3 g1Q+ Be3 Qe8 Na3 b1R Bf2 Nd7 Nc4 Qg3 Ne3 Ng6 Ne5+ Kf8 f7 Bf6 Bc4 Bh4 Nc6 Rb7 Rf1 Be7 Qb1 Nc5 Nd8 Rab8 a8B Nf4 a7 Qg6 Ke5 Rg8 h8B d4 Ra4 Bd7 c8Q d3 Qc7 d2 Ra6 d1R Bf6 Rb4 Bf3 Nd5 a8B Rg7 Bg4 Bb5 Bc6 Qh5 Ra8 Ne4 Bd7 Ba6 Ba4 R4b7 Bc2 Ba3 B6h4 Bb5 Bg1 Ba6 Rf3 Ndf6 Be1 Rd7 Bef2 Ke7 f8R Ra7 Rh8 Qhg6 Rh5 Bb2 Rg5 Qh8 Rh5 Ne8 f6+ Kf8 f7 Ke7 Rhf5 Qhh5 Ng2 Rab7 Ba7 Rb6 Ne3 Rd6 Bf2 Rd1 B4b3 Rg1 Ba2 Bd3 Bc4 N8f6 f8B+ Ke8 Nb7 Kf7 Bfc5 Ke8 Bcb6 Ke7 Nd8 Ne8 Bc5+
1Q2KbbN/1N4B1/nq1P4/3P4/2r1R1BR/N1rk1Bnb/p1N2RN1/b2q3B b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Ke5 h5 g4 a5 f4 a4 b4+ Kb6 d4 c5 f6 a3 f7 e6 f5 h4 f6 a2 g6 c4 g5 h3 g7 h2 d6 c3 g6 c2 Bb2 c1Q Nh3 Qc2 Nf4 Qc3 Qb3 Qf3 Be2 Ra5 Na3 Qg2 Bf3 Ra7 Rae1 Rh3 Re4 Qc2 Ng2 Nh6 g8B Qcc7 g7 Be7 f8R Qdd7 f7 Kb7 b6 Ka6 b7 Bg5 b5+ Ka5 b6 Na6 b8N Qa4 b7 Be7 Nd7 Qb6 b8N Nf5 Nc5 Ng3 d5 Rc7 Bh7 Bd7 g8B Qd4+ Kf4 Qd1 Bg7 Rc6 Kg4 e5+ Bf5 Be6 Bh7 Qb4 Qb2 Kb6 Nb7 Rc4 Nc6 Qbb3 Ra8 Bf8 Kg5 Qb4 Rf1 h1B Kf6 Qb5 Rh4 e4 B5g4 e3 Bhe4 e2 Re8 e1B Nd4 Bc3 Rf2 Qbb3 Qb1 Ba1 Kg6 Qb5 Ndc2 Qb2 Nc5 Ka5 Nb7+ Ka4 Re7 Kb3 Re8 Qd4 Re7 Kc3 Re8 Qb6 Qb5 Be7 f8N Bg8 Qb1 Bd8 Re5 Qd1 Qb5 Bf6 Qe8 Bg5 Qb8 Bh6 Kf6 Qc1 Ke7 Qd1 Bf6 Bg7 Ng6 Bh6 Ke8 Bf8 Nce1 Kd4 Nh8 Kc3 Bg7 Kd4 Ne3 Bg2 N1c2+ Kc3 Bg6 Bf1 Re4+ Kd3 B6h5 Rh1 Bg6 Bh3 B6h5 Re1 Bh1 Rc3 Ng2 Re3 Re6 Re4 Re7 Rec4 Re4 Qc1 Bf3 Qd1 Bhg4
NR3bkn/N1n3B1/1Qrpn3/1Nqn4/1Qb4P/1NP1N1r1/q3N1B1/Q4KR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 h4 e5 b4 g5 f6 a5 c6 a4 f5 a3 c3 a2 c7 g4 h6 e4 b6 g3 h7 d6 b5 g2 b7 e3 b6 e2 Nd2 Be7 Nb3 Be6 c8N Bc4 Na7 Qd7 Rb1 a1Q Bh6 Ba6 Bg7 Nc6 b8Q Qa5 b7 Qb6 Qc7 Nd8 b8Q Qa5 Qb4 Ne6 Qcb6 Qa2 Rb2 Bd3 Qa1 Qc7 Kf2 e1N Ne2 g1N Bg2 Nef3 Kf1 Nh3 Rg1 Nh6 Rb1 Rhd8 h8N+ Kg8 Nf7 Rab8 Ne5 Qc5 Ng4 Nc7 Ne3 Nf7 Rb2 Nh8 f7+ Kh7 f8N+ Kg8 f6 Nf4 Rb1 Rbc8 Ne6 Bc4 Ned4 Ng5 Ndb5 Nge6 Rb2 Nfd5 f7+ Kh7 f8N+ Kg8 Nd7 Bf8 Qb8 Re8 Nb6 Re7 Na8 Rd7 Bh6 Rg7 Qb6 Rg3 Bg7 Ne8 Rd2 Rc6 Rd4 N8c7 Re4 Ng5 Re8 Nge6 Rb8
1R3B1n/1q3nK1/1n1pr1nR/1b2QR1P/1PB1BR1N/N7/2N1kqr1/B3b2B b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 a5 b4 g5 h4 e6 f4 a4 c4 g4 c6 g3 c7 a3 h6 a2 c5 g2 b6 Ra6 c6 Rh7 b7 Bg7 Na3 Ne7 Bb2 Bh8 Bc4 Qf8 Nf3 g1N Ne1 Rg7 h7 Nh3 Qh5 Rg2 Nec2 Ng5 Raf1 Nf7 Ba1 e5+ Ke4 Bg7 h8N Ng6 Kd5 Qc5+ Ke4 Qf2 Rh3 Ke7 f6+ Kd6 Kf5 e4 Rhh1 e3 Rh2 Ng5 f7 e2 f8R e1N Rh3 Bh6 Kf6 Nf7 f5 Bd2 Kg7 Nf3 f6 N3e5 Rh2 Be1 Rhh1 Nf4+ Ng6 Nh8 f7 Rb6 Be2 Kd5 Bc4+ Ke4 Rh2 Ng4 Qe5+ Kf3 Rhh1 Nh6 Rh2 Na6 b8R Nc5 Rhh1 Bb7 c8B Na4 c7 Ba6 Bb7+ Rc6 c8B Nb6 Ba8 Bb5 Bcb7 d6 Bb2 a1Q Rh2 Qd1 Ba1 Qd5 Rhh1 Rc8 Rh2 Re8 Rh3+ Kg4 Rhh1 Qdc5 Be4 Qc8 Bad5 Re6 Rh3 Rh2 Bh1 Rg2 Be4 Qb7 Rh2 Qg1 Rf3 Qf2 Rhh3 Nfd5 Rf6 Ne7 h5 Qg3 Nh4 Qf2 Rhf3 Neg6 R3f5 Ne7 Rf4+ Kg3 Kh7 Qf1 Nf3 Kf2 R6f5 Qg1 Rg8 Qf1 f8B N6f7 Rg6 Qg1 Rh6 Neg6 Kg7 Qf1 Bcd5 Ke2 Nh4 Qf2 Bc4+
NRnr1R1r/b2Qq2k/P1R2q1n/2r1B1Q1/1B3RB1/1R1b1Prp/7R/K5N1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 Kg7 Kc2 c5 Kb2 h5 a4 e5 g4 b5 d6 c4 f3 h4 f6+ Kh7 f7 b4 d5 e4 d7 e3 a6 e2 a7 e1Q a5 b3 d6 Kg7 a6 Qe2+ Nd2 Rh6 g6 Rh5 g5 Kh8 g7+ Kh7 g6+ Kh6 Rb1 c3+ Ka1 c2 Nc4+ Qd2 Ba3 c1R Bb4 Nc6 Nb6 Rc3 Bh3 Bb7 Rh2 Rd3 Bg4 Qe7 d8Q h3 d7 Qf4 Rbb2 Rc8 a8R Na7 Rb8 Be4 Na8 Qff6 Qa5 Rdd5 d8B Bd3 Bc7 Rc5 Be5 Rd8 Rc8 Rg5 Rc6 Nc8 Rb1 Bf1 Qd7 Bd3 Rc1 Rh5 Rc4 Rg5 Rf4 b2+ Ka2 b1R Qb5 Rb2+ Ka1 Rg2 Qa5 Rh5 Qb5 Qe8 Qa5 Bd6 f8R Bb8 Qb5 Rg3 Qa5 Nge7 g8R Nf5 g7 Qe7 Rh8+ Kg6 Qb5 Rh7 g8R+ Kh6 Rg7 Ba7 Rhg8 Rh8 Rg6+ Kh7 Rb6 Qff7 Rgc6 Nh6 Rb8 Rd5 Rgg6 Qef6 Rc3 Q6e7 Rgc6 Rc5 Rb3 Qff6 Qf5+ Qg6 Qg5 Qge6 Qb7 Qf6 Qd7
2R2N2/1B3RkP/2bBB3/1N3K2/p2rrb2/4r2R/nBNP1Br1/1qnqR2Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Ke3 a5 Kf4 f5 b4 Kf7 h4 a4 e4 g6 e6+ Kg7 b6 c4 e5 c3 b5 c2 e7 Kh6 e8R Bd6 b7 Bb4 b6 Be7 d6 Be6 d7 Qc8 d8B Bd7 e6 Bb4 e7 Qc3 Ne2 Qb3 Na3 Nc6 b8B Nf6 b7 Qb1 Bd6 Kg7 b8N Ne4 Nc3 Nf2 Bb2 c1Q Ba6 Nd3+ Kg5 f4 Ncb5+ Bc3 Rf8 f3 e8B f2 Rh3 f1R Bb6 Rf3 Bb7 Re3 Bf7 Ncb4 Nc2 Bc6 Nd7 Rae8 Be6 Na2 Rf6 Be5 Qh1 Qd1 Nf8 Ndc1 Bbc5 Re4 Bf2 Rh7 Bdc5 Bb8 Bd6 Re3 Kf4 g5+ Kf5 g4 h6+ Kh8 h5 g3 Bb3 g2 Be6 Rd7 h7 Kg7 h8R g1R Ng6 Ree7 Rc8 Rg2 Nf8 Rd8 h6+ Kh8 h7 Kg7 Bb4 Rd4 B4a3 Bf4 Bd6 Nb4 Ra3 Ree4 Rae3 Nba2 Re1 Re3 Bg8 R7e4 Bc4 Rg1 Be6 Rg2 Rf7+
nNBN4/1Nq2pB1/2r1RQb1/3n4/b2r1PnR/R1PBqk2/K2n4/R1RN4 b - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 a4 d5 axb5 e6 e3 Be7 dxc5 d4 Qf3 d3 Qe2 Bf6 Qd1 Bd4 exd4 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 Kd7 Kc3 g5 Kb3 a5 f4 a4+ Ka2 d2 h4 g4 b4 a3 d5 g3 c6+ Kd6 b6 e5 b7 g2 c7 e4 h6 e3 b5 e2 h5 e1N b6 Qg5 h7 Bh3 c8B Kc5 h6 Kd4 d6 Ke3 d7 Ne7 d8N Re8 h8R Ra6 h7 Nd5 Bb2 Re4 Bd3 Nd7 b8R Qe7 b7 Rd4 Nf3 g1Q Nh4 Bf5 Re8 Nf3 h8R Nfe5 Nc3 Bg6 Ra8 Rc6 b8N Ng4 Nf5+ Kf2 R8h5 N7b6 Nd6 Qc7 Re6 Qg3 Rh7 Qe3 N6b7 Kg2 Ra5 Na8 R7h4 Kg3 Qb1 Kf3 Rc1 d1B Ra7 Be2 Nd1 Bf1 Bf5 Bb5 Bd3 Ba4 Bc3 Rc5 Qb6 Rc6 Kb1 a2+ Kb2 Rdc4 Bg7 Re4 c3 Rd4 Rab1 a1N Ka2 Nb3 Ra1 Nd2 Ra5 Bc2 Ra3 Ba4 Qa6 Rc5 Qd6 Rcc4 Qe5 Rc6 Qf6
qQ2R2n/4p1BP/1N3Rrk/Rn1bbQ1N/K1Q1q3/1B2q3/1P2r3/1q1Q1Q1Q b - - 0 1 illegal: No possible last move, all moves rejected
1B4R1/k1NPbb2/prNrrr2/1R3B1N/q2PB1Bn/1B1Q1Q1q/1K6/5nB1 b - - 0 1 illegal: No possible last move
r1R1Q3/RPq1N1qB/1k6/1R4R1/1B2Knn1/rrR2rBP/1N1p2b1/B3b1N1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Kf3 g5 b4 e5 c4 d5 f6 Kd7 h3 Kc7 c6 d4 b6+ Kd6 c7 Kc6 b7 d3 b5+ Kc5 h6 a4 b6 a3 f7 g4+ Ke4 a2 f4 g3 h7 g2 f5 Be6 c8N Qe7 f6 Ra4 Na3 Nh6 Bf4 d2 Bg3 Ra8 Qe1 Qc7 Ne7 Nd7 b8R Ng4 Bd3 Rg8 b7 Nb6 h8B Nd5 Rc8 Kb6 Qe2 Bh6 f8R Be3 f7 Nf4 Bg7 Rh8 Rg8 Bf2 f8B Be1 Bf6 Rh7 Rg5 Rf7 Bh8 Bd7 Rb1+ Bb5 Rb3 a1R c5+ Ka6 c6 Kb6 Bf6 Rb1 Rc3 Rb3 Rd8 Ba6 Rd5 Bc4 Ra5 Be6 Ra7 Bd5+ Kf5 e4 Nc4+ Kc5 Bc2 e3 Nb2+ Kb6 Be4 Nh2 Qh5 e2 Qg6 Ng4 Bd3 Qd6 c7 Bf3 c8R Qc7 Ng8 Bd5 Bb4 Bc6 Ne7 Rf8 Nf3 g1Q Qe8 Qd4 Ng1 Bg2 Bc4 Ra3 Bg8 Rf7 Bh7 Rf8 Nf3 Qdd7+ Ke4 Rb3 Nc6 Qg7 Be5 Rf5 Bf6 Ra5 Ne7 Raa3 Rf1 Bf2 Rb1 e1R+ Re3 Rf1 Rc3 Be1 Be5 Rf2 Bf6 Bf1 Ng1 Bg2+ Rf3 Ra2 Nd3 Qc1 Ba1 Raa3 Bd6 Rb5 Rb3 Qc7 Nb2 Bf1 Rfd3 Rf3 Rdd5 Bg2 Rc3 Rbb3 Bb4 Ne6 Rdc5 Nf4 Rb5+
1q1RK2R/1q1RNBpB/r1b3PB/4Q1B1/Pbr1k1n1/2br2Q1/2q5/N1BB4 b - - 0 1 illegal: No proof kernel
n2Q1q1B/3Npr2/1nq2RK1/1k2P3/r3R2N/1r3R2/NBP1BBRB/q4nb1 b - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 g5 a4 f5 axb5 Bb7 h3 Bf3 gxf5 g4 Nd2 g3 Nb1 Bg4 hxg4 Qc7 Nd2 Qb6 Nb1 Qd8 Kd2 h5 Kd3 a5 Ke4 h4 f4 a4 b4 h3 f6 d5+ Kf5 Kd7 e4 g2 f7 h2 b6 Kc6 b7 d4 g5 a3 b5+ Kc7 c6 Kb6 c7 a2 c8N+ Ka5 b6 d3 g6 d2 g7 Nf6 g8R Qd3 Nf3 g1Q Rg2 Ng4 Kg6 Bg7 f8R Ka4 f5 Rh7 f6 Nd7 b8B Qa3 f7 Ngf6 b7 Qge3 Bb2 Qd6 Be2 Qc6 Rf1 h1N Bg3 Qf2 b8B Nb6 Nh4 Nfd5+ Bbd6 Qf4 Rf3 Bd4 Bf2 Ng3 Nc3+ Ka5 Rb1 a1Q Na2 Nc7 Rc1 Nf1 Rb1 Nc4 Nb6 Kb5 Nd7 Ra4 Rc1 Na8 Rb1 Qe3 Rf6 Qf3 Bh2 Be3 e5 Bd4 Rh8 Bb6 f8B Rf7 Bg7 Qf4 Rf8 Bd4 Be1 Bg1 Bh8 Qff3 Bf2 Qf4 Qc1 d1R Qd2 Qff3 Qd6 Rd3 Re1 Rb3 Qc7 Qf4 Qd8 Qff3 Bd3 Qf4 Re4 Qf3 Be2 Qf4 Bg4 Ncb6 Be2+ Ka5 Rg3 Qh6+ Kf5 Rh7 Rfg8 Rf7 Rf3 Qf8 Rg5 Rba3 Rg2 Rb3 Rc4 Ka6 Kg6 Kb5 Re4+
3N2q1/2kn1bPr/qBbR1Q1n/Q6p/2Q1qb1Q/1Q3n1R/3QN2P/2KB2B1 b - - 0 1 illegal: No possible last move, all moves rejected
r2k3Q/pQRNr2r/P1q1P1nb/1rB2N2/1Br5/2RB4/KBn2BNn/4B3 b - - 0 1 legal: proof: g4 d5 e4 c5 exd5 e5 b4 h5 gxh5 e4 bxc5 e3 f3 Bf5 Ba3 Ne7 Bc1 Be4 fxe4 Ng8 d4 b5 h4 g5 a4 f5 c4 f4 h6 g4 a5 f3 c6 e2 Kd2 e1N Kc3 g3 Kb2 b4 c5 b3 c7 f2 c8N g2 h7 Ne7 c6 Na6 c7 Rg8 h8B Rg6 e5 Nc2 e6 Qd6 h5 Rg4 h6 Qf4 d6 Nf5 h7 Rg8 d5 Qc4 Bd4 Qe2 h8B Qe5 Bd2 Rg3 Na3 Bh6 d7+ Kf8 d8B Ke8 d6 Ne1 d7+ Kf8 Qf3 Qe3 Nb5 Rb8 Nh3 g1R Bd3 f1R Ra3 Qe4 Nbd6 Qc6 Bb4 Qb7 Bh4 Rg4 d8B Qc6 Bdc5 Ra8 Nb6 Rc4 c8Q Rg7 Bhf2 Rh7 Nf4 Ne7 Nf5 Ke8 Ng2 Ng6 Nd7 Rg1 Ka1 b2+ Ka2 b1R Bb2 Re7 Rh5 Rh1 Rc3 Rhh4 Qh3 Nf3 Qb7 Nh2 Rg5 Rh5 Bc7 Rhh4 Bcg3 Kd8 Rg4 Bd2 Be1 Rhh7 Bgf2 Bh6 Qh5 Nc7 a6 Nb5 Rf4 Na3 Rd4 Nc2 Rd6 Qe4 Rc6 Qf3 Rc7 Qd5 Bc1 Rb3 Bb2 Qc6 B4a3 Rb6 Bab4 Rb5 Qh4 Bc1 Qd4 Bh6 Qh8+
3rk3/2R2pb1/P2r1B2/1bQ1q1BR/nb3NBN/RN1q1P2/R3b2B/R1K1b3 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 Kd7 e4 Ra6 d6 Kc6 d7 Ra8 d5+ Kd6 Bg5 Ke5 Bc1 Na6 d6 Kf6 Nh3 Nb4 Ng1 Nd5 exd5 Ra7 Qd2 Ra6 Qd1 Ra8 Kd2 e5 h4 c5 a4 b5 a6 g5 a5 e4 a7 c4 f3 b4 h6 g4 h7 b3 h5 g3 h6 b2 Qc2 g2 Ra2 Qe7 d8R Be6 d7 Qe8 d6 Bg7 Ne2 g1Q Bh3 Qf1 Nf4 Ne7 Rc8 Nd5 Bg4 Nb6 Rc7 Rd8 a8R Na4 Rg1 Rg8 h8N Bd5 h7 Qe5 Nhg6 Bc6 h8B Bb5 Nh4 Rge8 Qc3 e3+ Kc2 e2 Nd2 e1B Nb3 b1B+ Kd1 Rc8 d8R Bd3 d7 Ke7 Be3 Be2+ Kc1 Rb8 Bf2 Rf8 Bg3 Rb6 Bh2 Rd6 Rdc8 Rg8 d8B+ Ke8 Qb4 c3 Qc5 c2 a6 Bh6 Bhf6 Bg7 Ra3 Bd1 Bg5 Qd3 Rab8 Be2 Bdf6+ Rd8 Rb6 Rh8 Rd6 Rh6 Rd5 Bb4 Be7 Rd6 Bef6 Be1 Rb8 Bc6 Rb4 Bb5 Re4 Bb4 Ra2 Be1 Re3 Bc3 Nd4 Qh7 Bh6 Qee4 Rh5 Qe5 Bhg5 Bb4 Rea3 Qd3 Rh1 Nb6 Kb2 c1B+ Ka1 Be3 Kb2 Bed2 Rha1 Be1 Kc1 Na4 Nb3
B1qqr2k/R1b1N2p/2KNB2P/1PR4r/4n1B1/2B1b3/2Rq2QN/2B1qbN1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Nc6 cxd5 Nd4 Nf3 Nf5 gxf5 Ne7 Ng1 Ng8 Kf2 Kf7 Kf3 c5 Ke4 g5 h4 Kg7 d4 a5 b4 f3 f6+ Kg6 e6 f2 h5+ Kh6 b6 c4 b7 a4 b8B a3 b5 c3 e7 c2 e8B a2 d6 Qb6 Kd5 Ra3 e4 Bb7+ Bc6 Rh3 d7 Rh2 d8N Ba8 e5 Qa6 f7 Kg7 h6+ Kg6 e6 g4 e7 g3 e8B g2 Be2 f1Q Nd2 Bc5 f8N+ Kf6 Ndf3 Qa7 Bf7 Bb4 Nb7 Ba5 Be6 Qe1 Ng6 Qb6 Ne7 Qd8+ Nd6 Qd2 Qf1 Bc7 Bd1 Rh3 Rh2 Bb7 Kc5 Rh5+ d5 Bc8 Ba8 Bb7 Rb1 a1Q Qf2 Qe5 Ra1 Qee1 Ra7 Bc6 Ndf5 Bb7 d6 Be4 d7 Bd3 Kc6 Bf1 Nd5+ Kg6 Nd6 Nf6 Qe2 Ne4 Ne7+ Kf6 Qf2 Re8 Qg3 Rf5 Rh5 Rg5 Nh2 Rf5 Bg4 Re5 Ne2 g1B Qg2 Be3 Ng1 Rd5 Bb2+ Re5 Bc3 c1Q Rg5 Qc8 d8R Qa1 Nf7 Qad1 Rd4 Rd5 Rc4+ Re5 Rh5 Qdd8 Nd6 Qed2 Bb2 Q1e1 Bc1 Rf5 Rh3 Rh5 Rc5 Bf2 Rhc3 Be3 Nef5 Kg6 Rc2 Kf6 Nd4 Ke7 N4f5+ Kf8 Ne7 Bb6+ Bc7 Ba5 Nf7 Bb6 Nf5 Kg8 N7d6+ Kh8 Ne7 Ba5 Nc4 Qb8 Bf4 Bc7 Be5+ Nf6 Bc3 Qbc8 Bb4 Ne4 Nd6 Qd4 Ba5 Qdd2 Bc3+
5K2/rP2nbBp/1kq2B1P/6Qb/BRQN1r2/NR4B1/Bbr3r1/1q2N2B b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Nc6 cxd5 Nd4 Nf3 Nf5 gxf5 Ne7 Ng1 Ng8 Kf2 Kd7 Kf3 a5 Kg4 g5 Kh5 c5 e4 Kc7 b4 g4 h4 c4 d4 a4 e6 f3 d6+ Kb6 f6 f2 d7 a3 e7 g3 e8B g2 d5 a2 e5 c3 e6 c2 e7 Ka7 b6+ Kb7 d6 Bh6 b5 Be3 f7 Bg5 f8B Bh6 Bg7 Ra6 Nf3 g1R Bcb2 c1R Bg2 f1B Rh3 Ra7 Bf7 Bc4 e8B Bf1 Qb3 Rd1 Bh1 Rg6 Na3 Bg2 Bbf6 Ra5 Rb1 a1Q Qc4 Rg1 Ne1 Bd5 Rhb3 Qc7 d8Q Bc6 d7 Bg5 Rb4 Bd2 R1b3 R6g4 Qe7 Bc3 d8N+ Kb8 b7 Ka7 b8B+ Kb6 Bd7 Qb1 Ne6 Bb2 Nd4 Bd5 Qe3 Qd6 Qg5 Ne7 Kh6 Qc6 h5 Ra7 Bg3 Rf4 Bde8 Rg2 Bg8 Ka5 b6 Bg4 Bgf7 Rf8 b7 Rff2 Bd7 Rc2 Bde8 Qc5 Ba4 Qc6 Bh8 Bd1 Kg7 Be2 h6 Bh5 Bfe5 Be6 Bg8 Rf4 Bf6+ Nf5+ Kf8 Bef7 Qc5+ Ka6 Bhg7 Ne7 Qc4+ Qb5 Qd3 Kb6 Rc3 Be8 Ba2 Bef7 Rcb3 Ka6 Qc3 Qc6 Bb5+ Ka5 Qc4 Kb6 Ba4+
nNK3B1/1BNr2RB/2q2R1k/1r5p/N1PRq2P/7R/1rqn2QB/r1bB4 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 axb5 e5 fxe5 f4 d4 Bb7 dxc5 Bf3 Bd2 Be4 Bc1 Bf5 gxf5 Qg5 Qd3 Qe7 Qd1 Qd8 Kd2 Kf7 Kd3 g5 Kc4 Kg7 Kd5 a5 b4 h5 h4 d6 Ke6 g4 c4 f3 e4 f2 c6 d5 c7 d4 c8B a4 f6+ Kh7 f7 a3 b6 g3 b7 d3 b5 d2 b6 g2 Qf3 d1Q Nh3 g1Q Nf4 a2 Bd3 f1R Nc3 Qgg5 Rh3 Ra6 Qg2 Ba3 f8R Ra4 Nfd5 Qb3 Bf4 Rb1 Bh2 Rf1 Rd1 Ra6 Na4 Ne7 Rf6 Nbc6 b8R a1R b7 Ra5 Be2 Qge3 Rd4 Qdb6 Kd7 Qc5 e6 Ra7 e5 Rf2 Bd1 Qe4 Ra8 Ra5 b8N Bc1 Ra7 Rb5 Rc7 Na5 Bb7 Nc8 e7 Rfa2 e8B Qbc2 e6 Nb3 e7 Nd2 Bg6+ Kh6 e8B Rh7+ Bef7 Nb6+ Kd8 Qc6 Bg8 Na8 Kc8 Qa6 Re7 Qc6+ Nc7 Rab2 Red7 Re7 B6h7+ Qg6 Rf7 Qge4 Rg7 Rf7 Rd8 Re7 Rf8 Rd7 Rf6+
2R3NN/2Nqn2K/N2BP1B1/R7/b1b3pb/2b1qrPN/B2kN1Q1/4Q1rq b - - 0 1 legal: proof: f4 b5 c4 g5 a4 e5 axb5 d5 fxe5 Nd7 cxd5 Ndf6 h4 g4 Ra5 Ne4 Ra1 Ng5 hxg5 Qe7 Qa4 Qf6 Qd1 Qd8 Kf2 Kd7 Kg3 f5 Kf4 h5 d4 a5 e4 c5 b4 a4 e6+ Kd6 e5+ Ke7 d6+ Ke8 g3 c4 d5 a3 g6 c3 d7+ Ke7 Kg5 c2 b6 a2 g7 f4 Kg6 f3 b7 h4 b8Q f2 b5 h3 b6 h2 b7 Rh4 Nc3 Qb6 d8N Qb4 d6+ Ke8 e7 Kd7 Nce2 Ra6 Bf4 c1Q Nf7 Ke6 e8B Qe3 d7 Ra3 Qa8 Be7 b8N Qb7 Qe1 Kd5 d8N Kc4 Nh3 Kd3 Na6 Bd7 Nh8 Ba4 Ne6 Qd7 Qg2 Rb3 Rc1 a1B Rc8 Bc3 Nec7 Bf6 Rg1 h1Q e6 Rh5 Be5 Bh4 Bd6 Rb1 Bf7 Rf5 Kh7 Ne7 g8N Rf3 Bg6+ Rf5 Qc6 Ra1 Bg2 f1B Bd5 Rc1 Ba2 Ra1 Qb1+ Kd2 Rg2 Rf4 Rf2 Rf8 Rf5 Rf6 Ra5 Rf3 Nc1 Bd3 Ne2 Bc4 Qbe4 Rg1 Qe5 Rf4 Qg2 Rf3 Qe4 Bab3 Qb1 Ba4 Qe1+
2b1bBNR/3qNn1r/r1N3q1/1pKR2Q1/1PB3Rb/2RB2bP/1B5B/1k5r b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Ne7 fxe5 Ng8 a4 Nd7 a5 Nb6 axb6 Bf5 Qb3 Bd7 Qd1 Bc8 Kf2 Ke7 Ke3 f5 Kd4 a5 e4 g5 b4 c6 d6+ Ke6 h3 f4 h6 f3 b7 g4 b8B f2 h7 a4 d7 a3 Ne2 g3 Nbc3 g2 Bb2 g1B Nd5 a2 Qc1 Ra7 Ne7 Qa5 d8R Qc7 Rd5 Bh6 Kc5 Qd8 d4 Qd7 Qg5 Ra6 Rc1 a1Q Rc3 Bh2 Rg1 Qb1 Rg4 Bg7 Bc7 Nh6 Bb8 Bf6 Bc7 Rg8 h8R Rg7 Bd6 Rh7 Bb8 Qe8 Bc7 Qd1 Bb8 Qg6 Bd6 Kf7 e6+ Kg7 e5 Nf7 Nf4 Qd2 Bd3 f1B Ne2 Bg3 Bc4 Qd1 Qe3 Nh6 Ra3 Be1 Rf4 Ng4 Ng8 Rb6 e7 Qdc2 e8B Qf7 e6 Kg6 e7 Nh6 Rdf5 Ba6 d5 Ng4 Nh6 Bg2 Nd4 Qd3 Ba2 Ne5 Rg4+ Bg5 Bb8 Bc8 d6 Ra6 d7 Qc2+ Kd6 c5+ Nc6 c4 d8B c3 Kc5 Bd5 Rgf4 Bgh4 Bc4 Qd2 Bdc7 c2 Rc3 c1R Bd6 Bf3 Bd7 Bh5 e8N Bef2 Bde6 Rh1 Bf8 Qdd7 Nd6 Qf6 Ng8 Qfg7 Rf7 Kg5 R7f6 Be8 Bd3 Nf7 Bec4 Qg6 Nf5 Be1 Qe7 Bef2+ Rd4 Be1 Bh2 Beg3 Rd5 Kf4 Re6 Kf3 Qg5 Kf2 Be2 Ke1 Bed3+ Kd1 Re3 Kd2 Re4+ Kd1 Rf4 Kd2 Nfe7 Kd1 Ra3 Kd2 Rg4+ Kd1 Bf1+ Kc2 Rc3+ Kb1 Bfd3+
2q1n2B/K3N1N1/1n1Bb1Rr/R2R4/p3q3/P2rR1q1/B1kPQQqR/4R2n b - - 0 1 legal: proof: e4 d5 exd5 c5 g4 g5 b4 e6 bxc5 Ne7 h4 Rg8 hxg5 Qd7 f4 Qb5 f5 Qb4 g6 Qa5 g5 Rh8 f6 Bg7 fxg7 Ng8 Ba6 Qc7 Bf1 Qd8 Ke2 Kd7 Kd3 a5 Kd4 f5 c4 b5 d6 Kc6 d7 h5 a3 b4 Bb2 a4 Rh2 b3 Qe2 f4 Nc3 h4 Re1 f3 Nh3 f2 Nd5 Ra7 Nhf4 h3 Ne7+ Kb7 c6+ Kb6 c7 Ka5 Kc5 e5 Ne6 Ba6 c8Q Nf6 g8R e4 g7 e3 g6 Rh4 Re8 Rb7 g8R Rh6 g7 Rb6 Bg2 f1Q Bd5 Qg2 Qc6 Qc7 d8B Qc8 Bc7 Bb5 Bbe5 b2 Bcd6 b1Q Rh8 Qbg6 g8R Q6e4 Rg6 Rb7 Ng7 Rd7 Rd8 Ne8 Rf8 Ba6 Rf3 Bb7 Qf2 e2 Re3 Ba8 Qc7+ Ka6 Bf7 Bd5 Qc6+ Ka7 Kb5 Be6 Qc5+ Kb7 Qb4 Ka7 c5 Kb7 c6+ Ka7 Rc1 e1Q c7 Kb7 Kc5+ Ka6 Qc4+ Ka5 Qce2 Qeg1 Rh1 h2 Re1 Qg3 Ba1 Q1g2 Bg8 Nc6 Bf6 Ne5 Bf7 Nc4 Bfe5 Qcb7 c8R Nb6 Ra8+ Qa6 Bb8 Rd3 Rd5 Nc4 Bbd6 Nb6 Rhg1 h1N Bf6 Q2h2 Rg2 Qhh3 Rh2 Qhg2 Bfe5 Bh3 Rd4 Nc8 Ba2 Bd7 Nh5 Be6 Rb8 Qaa8 Rd5 Ka6 Rb4 Qb8 Kc6 Nb6 Bh8 Qd8 Ng7 Qb8 Bc5 Ka5 Rc4 Qd8 Kb7 Qc8+ Ka7 Kb5 Rd8 Rd5 Rcc3+ Rd3 Rb3+ Kc4 Rd5 Qc6 Bd6 Qc8 Bb1 Qc6 Rbb5 Qc8 Ra5 Kb3 Ba2+ Kb2 Nef5 Kc2 Ne7
B2q3b/2nkBn2/BK2Q2Q/1pr3n1/R6n/bPR2bR1/P5q1/R1NR1NR1 b - - 0 1 illegal: No possible last move
1rq1q2N/3b2rB/2r3Q1/1p1K1n1P/RR4N1/NP3BBQ/q4nN1/2k1Nq1N b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Ne7 fxe5 Ng8 a4 Bc5 a5 Bb6 axb6 Qd6 Nf3 Qe7 Ng1 Qd8 Kf2 Kd7 Kf3 a5 Ke4 g5 h4 c5 d4 a4 b7 c4 b3 g4 d6 Ke6 d7 c3 d5+ Ke7 e6 Kf6 e7 g3 e8B g2 h6 a3 h5 a2 h7 c2 d6 Ra3 Nf3 g1Q Bf4 c1R Rh4 Qh1 Qd3 Na6 b8Q Rc3 Kd5 Qh2 e4 Qh3 e5+ Kg7 e6 Kf6 e7 Rc2 Ne1 Qa5 d8N Nh6 d7 Nf5 Bg2 Nc5 Nb7 Qa8 d8N Bd7 Qc8 Ra7 Ne6 Ne4 Bg3 Nf2 Rb4 Rc6 Nf4 Kg5 Na3 Rf8 h8N f6 Rd1 a1Q Nd6 Qa2 Bg6 Qg4 Qa6 Rb8 e8N Qge2 Bf3 Qe3 Nc7 Qe8 Bh7 Qb7 Ra1 Qbc8 Bh1 Kg4 Nfg2+ Kg5 Ne4+ Kg4 Qc3 Rab7 Nd3 Kf3 Nde1+ Ke2 Qb6 Nd6 Qa6 f5 Qb6 f4 Qa6 Ng4 Nf2 Nf5 Qf3+ Kd2 Qb6 Qe7 Ne8 Rbc7 Nf6 Qee8 Bh4 Rcb7 Qh3 f3 Bg3 Ra7 Rc1 Rac7 Rcc4 Ra7 Re4 Kc1 Ra4 Rac7 Reb4 Ra7 N2e4 Nf2 Ng4 Nd1 Qa6 f2 Qb6 f1Q Nef2 Rc4 Qg6 Rc6 Nh4 Rab7 Bf3 Rbc7 Nh1 Nf2 Nhg2 Be6+ Ke5 Rg7 Nf6 Bd7+ Kd5 Re6 Ng4 Rf6 Nf7 Rc6 Nh8
Kn1n1q1r/Nr1QBBRB/2pnR3/4r1N1/2nRPQ2/2P4q/R4R1k/2b3R1 b - - 0 1 illegal: No possible last move
2BR1nRR/P3n1NN/rp5R/2R2RB1/3Q4/qPn2Q1q/1qN2r1n/k5Kb b - - 0 1 illegal: No proof kernel
rq2R3/1BRK4/prN2k1N/rB1Bb1q1/2B2B2/2QPQrq1/P4Qn1/4Bb2 b - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 c5 exd5 c4 h4 c3 bxc3 Bf5 c4 Be6 c5 Bc8 g4 Bd7 h5 Qa5 g6 Bc8 g5 Qd8 g7 Nc6 Rh2 Ne5 Rh1 Ng6 hxg6 Bg4 Rh3 Bd7 Rh1 Bc8 Kf2 f5 Kg3 e5 c4 Ke7 c6 b5 d6+ Ke6 c5 h5 d7 b4 c7 a6 c6 e4 Kf4 h4 Qb3+ Ke7 Ke5 f4 Bb5 e3 Nc3 e2 Nd1 e1Q+ Ne3 h3 Nf3 h2 Nd4 Qh4 Ng4 f3 Nh6 f2 Re1 h1R Qe3 f1R d3 Bb7 c8Q b3 c7 Nf6 g8Q b2 g7 b1Q g6 Qc2 Qh7 Nd5 g8B+ Rf7 g7 Qc3 Qf5 Qc5 Qff2 Rf4 Bd2 Qg3 Rac1 Qa7 Be6 Rf1 g8B Qb8 Re2 Rh7 Be1 Rhf7 Rc5 R7f6 Bef7 Bg7 Nc6+ Kf8 Rc3 R6f5+ Ke6 Rf3 Rcc2 Nf4+ Kd6 Rg1 Bfc4 Ng2+ Ke6 Re5+ Kd6 Bf6 Bgd5 Kg7 Rc3 Qg8 d8B Rg5+ Kd7 Be5 Be7 Rh5 Bd6 Kf6 Rc1 Q8g5 Rcc2 Bb2 Bf4 Be5 Ba5 Rb1 Be1 Rb2 Qh8+ Kg6 c8B Rb1 Qh7+ Kf6 Qhe4 Rb2 Q4d4 Rb4 Ba4 Rb5 Qc3 Ra5 Bab5 Rh1 Bd2 Rb1 Be1 Rb2 Ba4 Rb6 Bab5 Q5h4 Rc1 Qhg5 Nb4 Ra7 Bf7 Q3h4 Qed4 Ra8 Qc2 Rh3 Bce6 Bf3 Bb7 Rg3 Re4 Bh5 Qde3 Bb2 Bb3 Bd1 Re8 Rf3 Bfd5 Be5 Qcd2 Qh2 Rc7 Qhg3 B3c4 Be2 Qc3 Bf1 Nc6
1B3bn1/3N3q/N2N1QN1/1p1B1NBr/3Rb1KQ/1P1PNR2/b1b1b1k1/n3b3 b - - 0 1 illegal: No proof kernel
br3R2/3QK1pb/2bR1RB1/B1NrbP2/1R2B1Pk/1b1N3R/1qn2N1b/6N1 b - - 0 1 illegal: No proof kernel
1Nn5/Q1QBrq2/Q1r4R/1krp1r1P/1b4RB/2rNNQ2/Kn1P4/4QQ1r b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 c4 d6 b4 Ba6 b6 Nc6 b7 Rc8 b5 Ra8 b6 Bb5 cxb5 Nb8 h4 Kd7 f4 a5 h6 g5 h7 e5 f6 c5 f5 a4 f7 e4 f6 d5 Nf3 a3 Ne5+ Kd6 Nd3 e3 Bb2 a2 Na3 c4 Nc2 g4 Qf3 e2 Bh3 g3 Bd7 g2 Ne3 Nc6 b8N c3 b7 c2 b6 Be7 f8Q Na5 f7 Nc4 Bf6 Qc7 h5 Ra3 Rh4 Rc3 Rg4 Nb2 Bh4 Rc6 Qe8 Rc5 f8Q g1R+ Qf1 Rh1 Qf3 Bf8 Qee4 Be7 Qb4 Bf8 Qa3 Ne7 Rb1 Rg8 h8Q a1R Qh7 Rg5 Qhe4 Nc8 Qe8 Nd1 Rbb4 c1R Rbf4 Re5 Rf6+ Re6 Rh6 Rc2 Nc6 Rcc1 b8Q Rc3 b7 Rf6 Qee4 Rac1 Qba7 R1c2 b8Q Nb2 Qbb7 Be7 Nb8 Bf8 Be8 Qf7 Bd7 Be7 Q3a6+ Rc6 Qa3+ R3c5 Qbb6 Rc3 Qbb7 Bd8 Qe8 Ba5 Qee4 Bb4 Qbb6 Qe6 Qbc7+ Ke7 Ng2 Rd6 Kf2 e1R Qee2 Rb6 Qd1 Re4 Qde1 Qf7 Ne3 Re5 Ke2 Rf5 Q7a5 Re6 Qca7 Kd6 Qd8 Nc4 Kd1 Re7 Qda5 Rb3 Kc1 Rc3+ Kb1 Nb2 Ka2 Rfe6 Na6 Rg6 Be6 Kc6 Q5c7+ Kb5 Nb8 Rgf6 Bd7+ Rfc6 Q3a6#
R1R2N1B/1n1R3n/1NB2RK1/B2bk1N1/r1q3nN/1P3r1P/p1Q2p2/b4N1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 Ke4 g5 d4 a5 e6 Kf6 h6 c4 h3 c3 b6 c2 d6 g4 e7 a4 e8R a3 h7 g3 d5 g2 d7 a2 d6 Ra5 b7 Nh6 b3 Rc5 Nf3 g1R Nh4 Qa5 d8N Qa8 d7 Rg7 Ne6 Rf5 d8N Rfg5 Bg2 Rf5 Nd2 Ba3 Ng5 Be6 Nf1 Ng4 Bd2 c1N Qc2 Qa6 Ba5 Nd3 Rd1 Nd7 b8N Bb2 e3 Bc4 Nde6 Nf8 Rc8 Ba1 Rh2 Rhg8 h8B Nh7 Nf8 Rf3 Bh1 Qb5 Rf2 Qa4 Nfg6 Rd8 Nf8 Rd5 Bg2 Rb5 Bh1 Rb4 Rdd2 Qb5 Bg2 Ra4 Nbd7+ Ke7 Ra8 Kd6 Nb6 Rf5 Bf3 Nh2 Nge6 Rg1 Bg2 Rh1 Ng5 Ng4 Rf4 Rd5 Rf3 Nc5+ Kf4 f5 e4 Nb7 e5+ Kc6 e6 Kd6 e7 Rd3 e8R Bg8+ Bd4 Qc4 Rec8 Re3 Rff2 Rc3 Bc6 Be6 Rd3 Bg8 Kf3 f4 Ke4 f3 Kf5 Be6+ Kg6 Bg8 Rfd2 f2 Rf3 Re3 Bg7+ Rd3 Rf6+ Ke5 Bh8 Rf3 Rdd6 Bd5 Rd7
b7/1b2N1RB/Nr1k1r2/B3BqR1/Qr1bPR2/1p1p1RP1/B4N2/1R1n1Kn1 b - - 0 1 illegal: No possible last move
2Q3Nr/1QQN4/KQ1nn1rq/4R3/1P1rbB1p/7P/1bQ1pQ1n/kRN4B b - - 0 1 illegal: No possible last move
2b2NBB/N1Bkb3/1n2R3/1r2qBQB/RpN1N1K1/n6n/P1p1R2P/5r1r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 f5 Kg3 b5 d4 c5 e4 g5 h6 g4 e6 b4 a6 c4 h7 c3 e7 c2 d6 Bd7 a7 Qc8 d5 Bc6 d7+ Kf7 d8N+ Ke8 d6 Bb5 e5 Qc5 Qd5 Qe3+ Nf3 Qb3 Nc6 Qc4 Bf4 Bg7 Bh3 Na6 Nc3 Kd7 Ne4 Bf8 Rhe1 Qe2 Nfd2 Nc7 Nc4 Rd8 a8R Ba6 Na7 Bc8 Qc5 Nb5 e8B+ Ke6 d7 Be7 Bh5 Nf6 Rad1 Na3 Rd2 Nd5 Qg1 Rhg8 h8B Rg5 Qc5 Rdg8 d8N+ Kd7 Ne6 Rd8 Kh4 g3 Qg1 Qe3 Rde2 g2 Bg3 f4 Bf5 f3 Nf8+ Kc7 Bf7 f2 Bg8 f1R e6+ Rd6 Kh3 Nb6 Kh4 Rh5+ Kg4 Qc3 Qe3 g1N Qg5 Qe5 Bf4 Rd1 Bg3 Bf6 e7 Nh3 e8B Be7 Bg6 Rh6 B6f7 Rhd6 Bh5 R6d5 Nb5+ Kd8 Ra4 Rc1 Na7 Rb5 Rd1+ Kc7 Rd6 Rh1 Re6 Rcf1 Ng6 Kd7 Bf4 Qf6 Bc7 Qe5 Nf8+
8/QN1BB1n1/4NB1Q/r4qp1/bn1K1PR1/p1rQ1Q2/1kPR1nr1/b2Q3Q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kd3 Kf6 b4 Ke5 f4+ Kd5 h4 e5 c6 a5 c7 g5 f6 a4 h6 d6 h7 a3 b6 Ra4 h5 Ra8 b7 Nc6 b8Q Qe8 b5 Kc5 h6 Kb4 b6 d5 b7 d4 f7 Ra6 Rh2 Na7 Qa8 Ka4 b8Q Nc6 Bb2 Bd7 c8Q Ra5 Qba7 Kb4 Nc3 Bg7 f8B+ Nge7 Nge2 Qf7 Qd8 Qf5+ Ne4 Rg8 h8Q Be8 Kd2 d3 Ke3 d2 Nc5 e4 h7 Kc4 Qdd7 Nb4 Nb7 Be5 Qdd8 Ba4 Bh3 Rg6 Rc1 Rc6 Nd4 Bf6 Ne6 Bc3 Ke2 e3 Ra1 Bg7 Bf6 Rc8 Kf3 e2 Ke3 e1R+ Re2 Rh1 Rg2 Rh2 Rg4 Rg2 Rc1 Ng6 B8e7 Nh4 Qhf8 Bh8 Qh6 Bg7 h8Q Rcc5 Nd4 Kc3 Qd6 Kb2 Ne6+ Rc3+ Kd4 Bb3 Q8h7 Ba4 Qc6 Bh8 Qcf3 Bg7 Qd8 Bh8 Qh1 d1N Q7g6 Nf2 Rd1 Qb5 Qdd5 Qd7 Qgd3 Nf5+ Ke5 Qb5 Rd2 Ng7 Kd4 Qd7 Qfd1 Qb5 Qc6 Qf5 Qcf3 Qg6 Ned8 Ne6+ Ke3 Ka2 Rg3 Rb3 Bb2 Be5 Bf5 Ng7 Bd7 Qf5 Ne6 Bc3 Rg4 Be5 Bd4 Bf6 Bb6 Ba1 Bd4 Rc3 Bdf6 Kb2 Kd4
1Q1NQ2n/3N2K1/r5p1/Pq3RB1/2nRnrB1/1k2P1rR/RbRp4/R1Q2b2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 a6 Ke7 Kd2 Ke6 Ke3 d5 Kf4 f5 h4 b5 c4 g6 a4 b4 h6 d4 h5 d3 c6 b3 c7 b2 a7 Nc6 h7 Bb7 c8Q+ Qd7 Kg5 f4 c5 Kd5 h6 Kc4 e6 f3 e7 f2 e8Q Ne5 c6 Qd5 c7 Qc5 Nc3 b1R Nb5 Qb4 Rh4+ Be4 Nd6+ Kc3 Qb8 Nc6 c8R Bh1 Bh3 f1N Nf7 Nd2 Rd4 Rb2 Nf3 Rc2 Nd8 Qb5+ Ne5 Nf6 a5 Rg8 h8R Kb3 h7 Bg2 Bg4 Ba3 Kh6 Rf8 Kg7 Nfe4 Qh1 Rf3 Rf8 Rf5 h8R Rc3 Rf7 Rf1 Rf2 Bh3 Rh2 Rf3 Qe1 Bf1 R8h3 Rg3 Rc7 Rc2 Rf7 Ra2 Nd7 Ne5 Rf6 Nf7 Rf5 Nh8 Rhf2 Nd6 Rfh2 N2e4 Bg5 Rc2 e3 Rf2 Qc1 Rf4 Rha2 d2 Qbc7 Bb2 Qc8 Rb8 a8R Rb6 Qb7 Rc6 Rc8 Ra6 Rc2 Nc4 Qb8
RRnQ2K1/2rQ2Nr/1nP2q2/2B1rRp1/bN5P/4p1N1/1NB1n1Nb/1N4k1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 c4 g5 f4 a5 b4 a4 h4 a3 b6 a2 b5 e6 h6 Ra7 h7 Nh6 c6 Na6 c5 Nc7 b7 Be7 b8R Rf8 h8N Ra3 b6 Ne8 b7 Nd6 c7 Qe8 c6 Rf7 Bd3 Rh7 Bc2 Bf8 Ng6 Qe7 Be3 Nhf7 Ne2 Ra7 Ng3 Ne5 Rf1 Nec4 Rf2 Bd7 c8N e5+ Kc5 e4 Nb6 d4 Kd5 d3 Na4 d2 Nb2 Be8 Bc5 e3 Qg4 d1N Qh3 Kf7 f6 Nc8 f5 Bg7 Nf4 Nc3+ Kd4 Ne2+ Kd5 Qf8 Ng2 N4b6+ Ke5 Bd7 Qg4 Qh8 Qd4 Be6 Qd7+ Kg8 Rf3 Bb3 Rf4 Ba4 Ke6 Bf8 f7+ Kg7 f6+ Kh6 Rf5 Bd6 f8Q+ Qg7 f7 Bf4 Nf1 Kh5 Qfd8 Kg4 f8N Kh3 Ng3 Kh2 Bd3 Kg1 Bc2 Qg8+ Kf6 Qb3 Ne6 Qc3+ Kg6 Qe5 Ng7 Qd4 Kf7 Qf6+ Kg8 Bc7 N3h5 Bh2 Ng3 Ra5 Ra8 Ra7 b8N Rb7 Na6 Rc7 Nd2+ Nc1 Rb1 a1R Nb4 Ra3 Nd1 Ne2 Rb2 Rd3 Nb1 Rd5 Rb3 Re5 Nb2 Nc1 Ra3 Ne2 Rb8 Bb5 Ra5 Ba4 Raa8
B3Q2q/2nR1KN1/2p1n1r1/2RB3p/Q2BQ1NP/BbP4k/b1r4B/2Bnb3 b - - 0 1 legal: proof: d4 a5 g4 b5 a4 f5 gxf5 e5 axb5 a4 dxe5 a3 bxa3 Kf7 a4 Ke7 a5 Ke8 Kd2 Ke7 Ke3 g5 Kd4 h5 Kd5 g4 e4 d6 h4 g3 f4 g2 e6 Kf6 a6 Nh6 e5+ Kg7 f6+ Kg6 c3 Kf5 e7 Rh7 e8Q Bd7 e6 Rg7 f7 Ng8 a7 Qc8 b6 Nh6 b7 Ng8 e7 Ba4 Nf3 Kg4 f5 g1N f6 Nh3 Bc4 Na6 b8B Rg6 Ng5+ Kg3 Ne6 Nh6 Nd2 Ng5 Nf3 Bb3 Nh2 Ng4 Ra5 Bh6 f8B Nf2 f7 Ba2 Ng7 Ne6 Rc5 Kh3 Qda4 Bd2 Rd1 Be1 Ng4 Qd8 Rd2 Nd1 Qec6 Qc8 e8Q Qd8 Be7 Qc8 f8B Qd8 Ke4 d5+ Kf5 d4 Bd5 d3 Bf6 Qc8 Qb7 c6 Qb1 Qd8 Bh2 Nac7 Bd4 Rb8 a8B Rb2 Ke5 Qb8 Kd6 Rc2 Ke7 Qd8+ Kf7 Qc8 Rf2 d2 Be7 Rb2 Qe4 Rc2 Qd7 Qh8 Qe8 Nb2 Rf6 d1B Rf5 Re2 Rf4 Bdb3 Bf8 Rc2 Rf6 Nf4 Rd6 Nd1 Rd7 Nfe6 Rc4 Re2 Bfa3 Rc2 Rc5
K1B1N1bk/2Rn1r2/1pNB1P1N/1rQ1bq2/1n2pb2/2B2B1P/1nRNR3/1B6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 e5 Ke4 g5 d4 Kg7 f4 c5 a4 g4 d6 b6 Kd5 c4 a6 g3 h3 c3 h6+ Kh7 d7 g2 a5 c2 f6 Qe8 d8R Qg6 f5 Qg4 a7 Be7 f7 Qe2 f8B Na6 Kc6 Nc7 f6 Qe4+ d5 Bb4 a6 Qe3 d6 Be6 Kb7 Rc8 a8B Qg5 d7 Bc5 a7 Bc4 Nd2 Na6 Ngf3 g1B Nd4 Be6 Nc6 Qe3 Qh5 Bb3 Bb2 c1N Bd3+ Qe4 Bb1 Ne2 Bd6 Bgf2 Bc3 Qf5 Re8 Bfe3 d8N Nb4 Rc1 Ne7 Nf7 Ng6 Ra2 Rf8 Rac2 Bcd4 Re7 Bg5 Re1 Ba2 Rc7 Nc1 Re2 Bf4 Qg5 Ncd3 Qg1 Nb2 Qf2 Nh8 Qe3 Kg6 h7 Bc4 Nh6 Nf7 h8N+ Kh7 Qf2 Rce8 Qg1 Re7 Qf2 Rg8 Qe3 Rg5 Kb8 Rd7 Bb7 Rh5 a8B Be6 Ba6 e4 B8b7 Bb3 Ka8 Ne5 Bc8 Bg8 N8f7 Re7 Bc4 Nd7 Qg1 Bde5 Qc5 Qg4 Be6 Qg5 Bg4 Qf5 Bf3 Rg5 Nfd8 Rf7 Ne6 Kh8 Ng7 Rg3 Bg4 Rd3 Bf3 Rd5 Qg1 Rc5 Ne8 Rb5 Qc5
bRR5/2r3pQ/1b1R4/3NQP1R/k1QnKn1r/1R3B2/Pqp5/NbBnR3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 e5 h4 b5 f4 c5 d4 c4 a6 c3 d6 Kc6 d7 e4 a7 c2 h6 b4 d5+ Kb6 d6 Ka5 h7 b3 h5 b2 f6 Qe7 d8Q+ Qc7 d7 Be7 f7 Bb4 f8R Qb6+ Qd4 Be1 h6 Nf6 f5 Bc3 Bg2 Be1 Nf3 Qc7 Qe8 Kb5 d8R+ Nc6 Rd6 Nh5 Rh3 Qb6 Nfd2 Bb7 Nb3 Ba5 Bf3 Rc8 a8R Rc7 Rb8 Nf4 Qe7 Ba8 Rfc8 Qb7 Rh5 Bb6 Nc3+ Ka6 Nd5 Kb5 Qc5+ Ka4 Qe5 Nd4 Rh3 Qa6 Rb1 Qb5 Na1 Qb4 Rh5 Qb5 Qc4+ Qb4 Kf2 e3+ Kg3 e2 Rb7 Rd8 h8R e1N h7 Neg2 Re8 Rdd7 h8Q Ne3 Rbb8 Nd1 Qh7 Re7 Qf6 Re1 Qe5 Rh1 Re7 Nc3 Kf2 Rh4 Ke3 Nd1+ Ke4 Rc6 Bd2 Rc5 Reb7 Rc7 Rc1 b1B Be3 Nb2 Re1 Nd1 Bc1 Rg4 Qc5 Qb2 Qc3 Rh4 Qd3 Ba5 Rb3 Bb6 Qc4+
R1b5/1B1N1npn/3Pp3/rq2N1b1/Q2K1R1N/2BNQP1N/1B2r1n1/b2k1N2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 h4 Ke5 b4 Kf4 h6 c5 b6 a5 f6 e6 f7 c4+ Kd4 a4 b7 c3 h7 a3 h5 c2 f3 a2 h6 Qg5 b5 Kg3 d6 Kf2 b6 Ra5 d7 Qb5 d8B Qc6 Rh4 Re5 Rf4 Ra5 Nh3+ Kg3 Bb2 c1B Bf6 Qe8 Qa4 Ra8 Ba6 Ba3 f8N Ra7 Ng6 Ne7 Ne5 Ng6 Nd3 Rf8 h8N Qb5 h7 Ne5 Ng6 Nf7 h8N Nd7 b8Q Rd8 Bb7 Ra5 Nge5 Nf8+ Qd6 Rd7 Nhg6 Nh7 Nh4 Rc7 Qd5 Rc2 Qe4 Be7 Bc3 Bb2 Qe3 Bd8 Bd5 Be7 b7 Bd8 b8N Be7 Nc5 Bd8 d3 Re2 Nd2 Be7 Nbd7 Bd8 Rd1 a1N Bb7 Be7 Ke4 Bd8 d4 Nc2 d5 Ba1 d6 Ne1 Ncd3 Ng2 Kd4 Be7 Bb2 Bd8 Rc1 Be7 Rc6 Bd8 Ra6 Be7 Neg6 Bd8 Be5 Bg5 Ra8 Qb6+ Ke4 Qa6 Bec3 Qb5 Kd4 Kh2 Nhf2 Kg1 Nb3 Kf1 Nh3 Rc2 Nge5 Rf2 Qc1+ Ke2 Qe3+ Kd1 Nd2+ Qb3 Qa2 Re2 Nf1 Qb5 Qa4+
3bbQ2/3n1pR1/N3rB1B/1qPB1KnR/2P2b2/1NNp1k2/2r1N1N1/Q1Nn4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 d5 Ke3 g5 h4 a5 b4 Kd7 c4 Ke6 b6 Kf5 h6 Kg4 h5 d4+ Ke4 a4 b7 a3 h7 a2 e6 d3 h6 Be7 b5 Ra3 b6 Rb3 Nd2 Qc7 Rh5 Bd8 e7 Kg3 e8N g4 Bg2 Be7 Nd6 Na6 b8N Qa7 b7 Rb2 Nb3 Rb1 Nc6 Rb2 b8N Kf2 Ncd4 Bb7+ Kf5 Bf3 e4 g3 e5 Qb7 Bf4 Qb6 e6 Bc6 Bd5 Bd8 Bc1 Re2 e7 Qb5 e8Q Rc2 Bg5 g2 Bd2 Qa5 Rc1 Nb4 Bf4 Re2 Na6 Qb5 Be3+ Kg3 Qf8 a1B Bd2 Qb6 Bg5 Rb2 Bd2 Be8 Rc2 Ra2 Qb1 Bc3 Nc1 Qb5 Ndb3 Be5 Qa1 Nf6 Rb2 Rg8 h8N Nd7 h7 Rg6 Bh6 Re6 Ng6 Nc2 h8B Bf4 Bf6 Kf2 Nh4 Kg3 Ngf3 g1N Nfd4 Kf2 Ne4+ Ke3 Rg5 Nh3 Rg6 Ng5 Rg7 Nb4 Rh2 Rc2 Nde2 Na2 Ng2+ Kf3 Rh4 Nc3 Rh5 Nd1 N4c3+
BB2kB1B/1R2pRn1/2Prq3/3nprn1/1B1b3Q/3r4/1P1N1BQ1/NK1N1b2 b - - 0 1 illegal: Other
n2b1r2/n1NPB3/q3n2p/B1P2B1R/bN2RB1R/4r1N1/4Q1p1/r2BK1kN b - - 0 1 illegal: No proof kernel
1B1BbNBq/2p1n1rb/5n1K/1rbRp3/2PRRRk1/Q2P4/1nRN4/2B4N b - - 0 1 illegal: No possible last move, all moves rejected
1kn1B3/1PPnb1bp/4qR2/p1B1NQ1r/3RKB2/2B2B1N/3rbQN1/1n3B2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Kd3 Kd7 b4 Kc7 g4 a5 c4 e5 f4 d4 b6+ Kb7 f6 Na6 b5 Qd6 f7 Bh6 f8B Rb8 c6+ Ka8 f5 Ne7 f6 Rb7 c7 Qa3+ Nc3 Ra7 f7 Rb7 c5 Nb4+ Ke4 d3 g6 d2 c6 Bg7 g5 Nbd5 Qe2 d1N Bd2 Qa2 Rh4 Qa3 Qf2 Qb2 Nh3 Ra7 Ne2 Ng8 Nef4 N5e3 Bc5 Bf6 f8N Ne7 g7 Bg4 g8B Be2 g6 Nc4 g7 Rb7 N8g6 Nc8 Bf7 Qa2 g8B Be7 Be8 Rb8 Ng2 Nc3+ Kf5 e4 Bd5 e3 Rd4 Nb1 Ne5 Rf8+ Ke4 Rf5 Bc3 Qb3 Ra2 Rh5 Ra3 Bd1 Ra1 e2 Ra2 e1B Re2 Na7 c8Q Qa2 Qg4 Rd8 b7+ Kb8 Qgf5 Nc8 Re3 Bd2 Rf3 Bh6 Rf4 N4b6 Rf3 Ka7 b8B+ Ka8 Rf4 Nd7 b6 Bhf8 Ke3 Qc4 Bf3 Be2 Ke4 Qb3 Qg6 Qg8 Rf6 Bg7 Qf5 Qc4 Ng6 Qb3 Bf4 Qe6+ Ne5 Kb8 b7 Ndb6 Rc4 Rd2 Rd4 Nd7 c7+
1qr5/NpB2knQ/p1N1R2R/1B1r4/1K6/1n1NQ1R1/1P1nbP1N/1b1N2Nb b - - 0 1 illegal: No proof kernel
1B2k2q/1p3P1r/3P2Rb/n1b1Npr1/2nBB3/1N2R3/b4rBK/RQ1NN2N b - - 0 1 illegal: No possible last move, all moves rejected
3Bn3/P1rR3p/q2BPR1K/N2BBB2/R1n1pkb1/2nb2N1/1Q2Rb1N/6r1 b - - 0 1 illegal: No possible last move, all moves rejected
4NRB1/q1n2Q2/2nB1QQr/1Q2r1Pq/4NK1b/2p4p/krQ2P2/1bQRR3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 b4 c5 d4 h5 g4 a5 g6 e5 b6 a4 b5 c4 b7 a3 f6 a2 b6 h4 g5 h3 g7 e4 f7 c3 Na3 Rh6 Nc4+ Kd7 d6 Ke6 d5+ Kf5 d7 Rc6 d6 Ke6 Ba3 Rc5 Kf4 e3 Qc1 Kd5 Ne2 Nh6 g8Q Rc7 Ng3 e2 Qg6 e1R Ne4 Na6 b8Q Rb7 Qa7 Qe8 d8Q Ng4 d7 Ne5 Bd6 Nc7 Qdf6 Nc6 d8Q Bf5 Rg1 Bg7 f8R Qf7 Qa4 Ra6 Qde7 Re2 Rb1 a1Q Qac2 Rb8 b7 Re3 Nc5 Re5 Rb5 Rb6 Bd3 Qa7 Ne4+ Kd4 Re1 Ra6 Qh7 Qh5 Qef7 Rb6 Rc5 Rb2 Be2 Re8 b8Q Re6 Qb5 Bh8 Qd8 Rh6 Qhg6 Bg7 Nf6 Be4 Ne8 Bd3 Nd2 Be4 Qcb3 Bb1 Qbc2 Bf6 Ne4 Bh8 Qbb8 Bf6 Bd1 Bh8 Rd5+ Kc4 Qdf6 Bg7 Q2d2 Bh8 Ba4 Bg7 Bb5+ Kb3 Qdc2+ Ka2 Ba6 Bh8 Qb5 Bg7 Rh8 Bf8 Bc8 Be7 Rf8 Bd8 Be6 Be7 Ba3 Bd6 Kg3 Qb6 Q7e7 Qa7 Bg8 Re6+ Qff4 Bc5 Qef7 Be3 Bd6 Re5 Qg4 Bf4+ Kf3 Qh4 Q4f5 Bh2 Q5f6 Bg3 Qb6 Qh5+ Ke3 Bh4 Kf4 Rh7 Qb5 Rh6 Rdd1+
Qr1qB1Bk/6q1/4R3/1N2rP1N/1nb1p3/1P3B1r/3N2pb/RKNRN1Bn b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 f4 a5 h4 d5 c4 e5 Kc2 g5 h6 d4 f6 e4 h5 g4 c6 a4 c7 g3 f5 a3 b3 g2 h7 a2 b6 Na6 h6 Be7 b7 Qd7 b8N Qe8 c5 Qa4 c6 Be6 c8B Bc4 c7 Qd7 Nf3 Qd5 Be2 Qe5 Be3 Qa5 Bd7 Qc5 c8B Ra7 Be8+ Kf8 f7 Bd6 Be6 Nf6 Bg1 Re7 Ne1 Bg3 Nd2 Qd6 Nc6 Nc5 Na7 Qf4 Nb5 Qh4 Bf3 d3+ Kb2 Rg8 h8R Na6 h7 Kg7 f8N Nb4 Ng6 Nh5 Nf4 Bh2 Ne2 Ng3 Nc1 Qh6 B6f7 Re5 Be6 Rf8 Bg8 Qf6 Qc2 Qd8 Qc3 Nc2 Qa5 Nb4 Nf1 d2 Qa8 d1R Nd2 Ne2 Nb1 Rd3 Nd2 Bf4 Rh6 Bh2 Re6 Ng3 Ne2 Rc3 Rd1 Nh1 Nc1 Nd5 Ka1 Re3 Kb2 a1Q+ Kc2 Qa7 Kb1 Qae7 Bg6 Qee8 Qb7+ Ne7 Bg4 Qd4 B8f7 Rg3 Bf3 Qed7 Rg8+ Kh6 h8N Q4d5 Bgh5+ Kh7 Ng6 Rh3 Nf4 Nc6 Rg7+ Kh8 Bg8 Qc7 Qa8 Rb8 Be8 Nb4 Nh5 Qdd8 Rge7 Qcd7 Ra6 Qb7 Ree6 Qg7 Ra1
1N1nN1k1/1bQq1B1r/R1q1Q1NR/1P1n2Np/3K1b1n/3R4/1P3B1p/N4rN1 b - - 0 1 illegal: Other
1Q3N2/1BK1nRbb/2nNN1R1/1pr1Q1q1/3r2k1/3P3p/Nq1PQ3/N3B1bN b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 d5 b4 d4 bxa5 d3 cxd3 Be6 Qf3 Bd7 Qd1 Bc8 Ke2 Kf7 Kf3 c5 Ke4 h5 Ke5 b5 a4 e6 g4 c4 f4 c3 g6+ Kg7 g5 c2 a6 h4 a7 h3 a5 Nh6 f6+ Kg8 f5 Ba6 g7 Kf7 g8Q+ Ke8 f7+ Ke7 f6+ Kd7 g6 Qb6 g7 Qd8 Bg2 Bc5 f8N+ Kc8 f7 Kc7 Ne2 Kc8 Bb7+ Kc7 Bb2 c1Q Bd4 Qd7 Rg1 Qc4 Nbc3 Rh7 Na2 Nf5 Nec1 Ba3 Nb3 Qc2 Rg6 Qb2 Qh8 Qe7 g8N Rh5 Qe2 Qg5 Nh6 Ne7+ Nf5 Bb4 Rg1 Bc3 Rf1 Kd8 Kd6 e5 Be3 e4 Bf2 e3 Ng3 Bg7 Be1 Nbc6 Na1 Rh4 Rf2 Rc8 a8N Rb4 Nb6 Rd4+ Ke6 Rc7 Nh1 Rc8 Nc4 Kc7 Ba8 Bb7 a6 Kd8 a7 Rc7 Qf1 e2 Nd6 Rc8 Nd7+ Kc7 f8N Kd8 Rf7 Kc7 Bh4 e1B Qe2 Bf2 Nc5 Bg1 Bg3 Ne5 Be1 Be4 Bb7 Nc6 Rgf6 Bh7 a8Q Rd8 Rg6 Rd7 Nc8 R7d5 Qb8+ Kd8 Na6 Rc5 Nc7 Rb4 Kd6 Rg4 Nce6+ Ke8 Rf5 Rd4+ Rd5 Kf7 Kc7 Bf6 Rd6 Be5 Rg7+ Kf6 Rg6+ Kf5 Qg7 Bf6 Rd7 Ng8 Rf7 Nge7 Qe5+ Kg4 Nd6 Bg8 Qh8 Bg7 Qe3 Bh7 Qf2 Bh6 Qe5 Bg7 Qfe2#
3b1N1R/5Q2/b1BnrRpN/q2b2K1/NB1r2RB/1RP3N1/1pP3R1/1k2n1q1 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 b4 c4 bxa5 c3 dxc3 Rh7 Be2 Rh6 Bf1 Rh8 Ke2 Kf7 Ke3 Kf6 Kf4 d5 a4 b5 h4 g6 h6 b4 h7 e6 a6 d4 a5 b3 h5 b2 a7 d3 h6 d2 a6 Qd7 Na3 Qe7 Nc4 Qc5 Bg2 Qb6 Rh4 Bb7 Qf1 d1B Bc6 Bg7 Ne2 Bf8 Ng3 Be7 Rg4 Qa5 Nb6 Nd7 Na4 Rb8 a8R Rd8 a7 Ne5 Rb8 Bf3 a8R Ba6 Rb3 Bd5 Rab8 Rd6 R8b6 Bd8 Bd2 Rd7 Be1 Ne7 f3 Rg8 h8N Nc8 h7 Re8 Nf7 Nd6 h8R Ree7 Nh6 Nd3+ Ke3 Ke5 f6 Re8 f7 Ree7 Bf2 Ne1 f8B Re8 Ne2 Ree7 Bh4 Re8 Rg2 Ree7 Ng3 Re8 Kf2 Kf4 Rd1 e5 Rd4+ e4 Qc4 Nb5 Bb4 Re6 Qf1 Ke5 Ke2 e3 Rg4 Nd6+ Bb5 Ba8 f4+ Kd5 f5 Bc6 Kd1 e2+ Kd2 Ke5 Ke3 Bd5 f6 Re8 Kf2 Re6 Rg5+ Kf4 f7 Be7 f8N Bd8 Nh1 Ke4 Kg3 Ke3 Kg4 Kd2 Bc6 Kc1 Ng3 Kb1 Qf5 Nf3 Kf4 e1Q Rg4 Qg1 Qf6 Ne1 Qf7 Rde7 Kg5 Re4 Rf4 Rd4 Rf6 Re6 Rb5 Re2 Rc5 Re6 Rc4 Rd2 Rf4 Rd4 Rg4
rq4b1/b1R2BN1/r3p2p/1P2N2q/Nn2K1Bn/1kP1B1rR/5N2/QN1Q1N2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 a5 b4 d5 f4 a4 g4 a3 f6 Ke6 f7 a2 f5+ Ke5 c6 h6 c7 Nd7 b6 Qe8 b7 Nc5 b8N Na4 c3 Kd6 f6 d4+ Ke4 d3 g6 d2 g7 Nb6 b5 Kc5 g5 Nd7 g6 Nb6 Rh3 Qd8 Nd7+ Kd6 Be2 Ba6 c8N+ Ke6 Ne5 Qd6 Ngf3 Nd5 Nh2 Qb8 Nb6 Kd6 Bg4 Bc8 Nf1 Be6 Na4 Nb4 Nd3 Ra6 Nf2 Bb3 Qe2 d1R Be3 Rd3 Qf3 e6 Qd1 Ne7 g8B Nf5 g7 Be7 f8Q Bc2 f7 Nh4 Qe8 Bf6 f8N Bd4 Bf7 Ba7 Ng6 Rf8 Kf4 Kd5+ Ne5 Rg8 Qe7 Rd8 g8N Re8 Bd2 Rg3 Qg5 Bh7 Ne7+ Kd6 Nf5+ Kd5 Qh5 Bg8 Ng7 Rd8 Qc1 Rf8 Be3 Re8 Nbd2 Rd8 Qa3 Re8 Rd1 a1Q Qb2 Qb1 Qa1 Qg6 Nb1+ Bd4 Qf5 Qh5 Rd2 Rf8 Ra2 Ba7 Qc2 Qb7 Ra3 Ra8 Qd1+ Bd4 Nc6 Kc4 Ke4 Qb8 Ra2 Ba7 Rd2 Qc7 Rd7 Qc8 Rc7 Qb8 Qd8 Kb3 Ne5 Na2 Qd6 Nb4 Qd1+
k2B1b2/1RrB1N1R/2P1NQ2/3B1pBn/B1qrn2N/P1B3qp/1b4Q1/1b4K1 b - - 0 1 illegal: No proof kernel
1BqbNB1K/1R1k1rB1/n1pqr1b1/5N2/3BBP1P/B2N4/prQ1Q2n/2R5 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Ke3 e5 Ke4 g5 f4 g4 d4 c6 b4 g3 h4 g2 b6 a4 b7 a3 d6 a2 d7+ Ke7 h6 Qc7 d8N Ra6 b5 Rh7 b6 Ke8 f6 Ba3 d5 Qf7 d6 Ra8 d7+ Kf8 Kf5 e4 Qc2 e3 Ne2 g1R Ng3 e2 Nd2 e1Q Nc4 Qfe8 f7 Ke7 Kg6 Qe5 Nd6 Qc5 Rb1 Qd4 Bd3 Nf6 Ne6 Qd8 Ne8 Nh5 Nc5 Qc7 f8B+ Kd8 Bb2 Bb4 Ba3 Ng7 Kf7 Nh5+ Kg8 Qf2 Rb3 Re1 Bg6 Rhe7 h7 Qd4 h8B Rf7 Bhg7 Ba5 Kh8 Ree7 Qe2 Qdd6 Rc1 Na6 b8Q Nf6 b7 Ng4 Be4 Nh2 Bd4 Re5 Bg7 Ke7 Nd3 Ke6 d8B Qcd7 Be7 Bd8 Nf1 Q7c7 Rb6 Bd7 Rb5 Qc8 Ne3 Ra7 Rbb1 Rb5 Bef8 Re7 Nf6 Be8 Nf5 Bg6 Ne8 Rf7 Rb2 Re5 Rb3 Kd7 Rb6 Re6 Qa8 Nc5 b8B Rb7 Qa4 Na6 Rb4 Rb5 Qac2 Rb7 Ra4 Rb1 Rb4 Rb2 Rb7+
3b1BRq/1b3B1b/Np3p2/4nrP1/K1Qn1q1N/2RRRP2/k2NB3/r1RB4 b - - 0 1 legal: proof: d4 a5 h4 d5 b4 g5 hxg5 e5 bxa5 Qd6 dxe5 Ne7 c4 Qd8 cxd5 Ng8 Kd2 Ke7 Kc3 h5 Kb4 c5+ Ka4 b6 g4 c4 e4 h4 a6 c3 g6 f6 d6+ Ke6 g7 c2 g5 h3 d7 h2 a7 Bc5 Qd3 Bd4 Ba3 c1Q Be2 Rh3 Nd2 Re3 Ngf3 Bc5 Qc4+ Ke7 e6 Kd6 e7 Qg1 e8B Qb1 e5+ Kc6 e6 Qc1 e7 Qg1 Bf7 Bb7 e8R Nh6 g8R Qg4 Rhc1 h1B Nh4 Nf5 Rc3 Be4 Rac1 Nd4 f3 Qc8 d8R Bh7 Re7 Rd3 Re3 Nd7 Bb4 Qf4 a3 Rb8 a8N Ne5 Nc7 Ra8+ Na6 Qb8 R3c2 Rb3 Rcc3 Rb1 Rd5 Ra1 Bd1 Nb5 Rdd3 Nd4 Rg7 Qh8 Rg8 Kd7 Be2 Be7 Bc5 Bd8 Bf8 Ra2 Kb4 Ra1 a4 Rc8 a5 Rc5 Bd1 Rb1+ Ka4 Rcb5 Nc5+ Kc6 a6 Ra1+ Qa2 Qe4 a7 Qf4 Na6+ Rc5 Ka3 Kb5 a8B Nd7 Be2 Rf5 Bb3 Ne5 Bbd1 Bc8 Bd5 Bb7 Bf7 Ka5 Nc5 Kb5 Kb2 Kb4 Qd5 Nb3 Na6+ Ka4 Kc2 Nd4+ Kb2+ Nc2 Rc5 Ba8 Kc3 Ka3 Qc6 Nd4 Rc4+ Ka2 Kb4 Bc7 Ka4 Bd8 Qc7 Be4 R4c3+ Bd5 Rb3 Be4 Qc4 Bb7 Rbc3+
NRqQr3/Bb2bQP1/1pN3N1/1Rp1q1P1/2K3R1/kn1R2n1/BR2R3/4q2r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kd3 Kd6 a4 Kc5 g4 Kb4 f4 e5 d6 h5 f6 c6 a6 h4 f5 h3 f7 h2 g6 Bg7 f8R Bf6 a7 Rh5 a5 Bg7 g5 Be6 a6 Bh6 d7 Bg7 f6 Qb6 d8R Ba2 f7 Qf2 Rd4+ Ka5 Na3 Nf6 Nc2 Bh8 Nb4 Qf4 Re8 Rh6 f8Q Nd5 Qf7 Nf6 Nh3 Nfd7 Rb1 Nf6 Rb2 Bb1+ Kc4 e4 d3 Qe5 Nf4 Rh3 Be3 Nbd7 Rd5+ Nc5 d4 Bc2 Rg1 Ka4 Rg4 Nb3 Rb5 h1Q d5 Ka3 d6 Nh5 d7 Ng3 d8R Bf6 g7 Be7 Rd3 Rc8 Bc5 e3 a8R e2 a7 e1Q Rb8 Rh6 a8N Qh3 Ba7 c5 Ng6 b6 Nc6 Rh4 Re3 Be4 Qd8 Rh7 Rd3 Bg2 Nb4 Bb7 Nc6 Rh8 Rf4 Qd7 Rg4 Rh1 Be2 Bf8 Re6 Be7 Bd1 Qe8 Bc2 Qh8 Bb1 Qf8 Ba2 Qg8 Qd7 Re8 Qd8 Qf8 Rf6 Qg8 Rff2 Qh8 Rfe2 Qh3 Rf4 Qc8 Rg4
RNBq2nB/1r1N1kpB/7B/pq5b/QN3rRP/nR3RK1/7P/2b1B2q b - - 0 1 illegal: No proof kernel
7q/R1n1np1r/5pR1/1QPr1k2/4RP2/bB1N2N1/Rb1RB1r1/1KBQR1q1 b - - 0 1 illegal: Other
B2r1Nb1/KnQ1p2Q/2RN2n1/1PBNq1k1/4Nq2/2P1R1B1/N5rp/b1N4n b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 a5 Kd4 d5 g4 h5 f4 h4 b4 a4 f6 Kg6 f7 h3 f5+ Kg7 f6+ Kg6 b6 h2 b7 a3 b5 a2 c6 Ra3 Kc5 d4 c7 d3 Kb6 d2 Nc3 Bf5 Bg2 Bd3 Nge2 Qc8 Re1 Ra4 Ba3 Rh4 Qb1 d1N Nc1 Rh6 Bc5 Rd4 Re3 Rc4 Ka7 Bg7 f8N+ Kf7 g6+ Ke8 g5 Qf5 c8N Nd7 b8B Rg4 Ba8 Nf2 Bg3 Nh1 Ne6 Qf1 Nf4 Bc4 Nfd5 Ne5 f7+ Kd7 Qb2 Ke6 f8N+ Kf5 Qb3 Bh8 g7 Qf4 g6 Nf6 g8N Nfd7 g7 Kg5 Ngf6 Ng6 g8Q Bg7 Nd6 Rh8 Rb1 a1Q+ N3a2 Qae5 Qh7 Rg8 Qc3 Rh8 Be1 Rg2 Bg3 Rg8 Qa5 Rh8 Qc7 Rg8 Bb4 Nc5 Ra1 Nb7 Nfe4+ Kg4 Bc5 Bf6 Ne6 Rd8 Nf8 Bb3 Ndc3 Bg8 Nd5 Qef5 Rb1 Ba1 c3 Qe6 Rb4 Qee5 Ra4 Qg7 Ra6 Qge5 Qg7 Kh5 Rc6 Kg4 Qf7 Kh5 Qh7+ Kg4 Nd2 Kg5 N2e4+
1NBq1BK1/1B1Qp2p/rb3PQB/1qr1r2b/n3R3/1R2Rn2/1B4NP/5B1k b - - 0 1 legal: proof: e4 b5 g4 c5 b4 f5 gxf5 d5 bxc5 b4 exd5 b3 axb3 Ba6 b4 Bb7 b5 Bc8 Ke2 Kd7 Kf3 g5 Kg4 a5 Kh5 g4 d4 g3 f4 a4 c4 a3 c6+ Kd6 c7 g2 b6 a2 c5+ Kd7 f6 Ra3 f7 Nh6 f5 Rb3 b7 Re3 c6+ Kd6 f6 Ng8 Na3 Na6 b8R Re2 Nh3 g1Q Nc2 Nb4 Qd3 Qe8 Bb2 Re1 Nf4 Qg3 Ng2 Qf2 Qg6 Bb7 c8B Bg7 f8B Bh6 c7 Nd3 Nb4 Nc5 Nc6 Na4 Rg1 Re4 Re1 a1R Re3 Qd2 Rh1 Ba6 Bb7 Qd8 c8B Qd3 Rg1 Qb5 Rh1 Bg5 Rg1 Nh6 Rh1 Kc7 d6+ Kb6 d7 Nf7 d5 Kc5 d6 Kd5 Rg1 Ne5 Rh1 Bh4 Kh6 Nf3 Kg7 Re5 Kf7 Bf2 Rg1 Qda5 d8Q Qc7 Re4 Bb6 d7 Rc1 Qe8 Rc5 d8B Qd7 Bc7 Qd8 Bd6 Rg8 Qg3 Rgg5 Qd7 Rh5 Kg8 Re6 Rh4 Rhe5 Rh3 Ke4 Qg6+ Rf5 Bf4 Rd6 Qh5 Rfe5 Bh6 Rde6 Nf4 Ke3 Rg4 Kf2 Ng2 Kg1 Qg6 Kh1 Rf4 Qb4 Rg3 Be2 Re4 Qb5 Rh3 Ng1 Rhe3 Bh5 Ra8 Nf3 Nb8 Bc7 Ra5 Ra6 Rb3 Bb6 Rbe3 Nc3 Ra3 Na4 Rab3
3B4/Rr1PK1BN/2b2p1B/3r1b2/3Nk2q/Rq1N1N1n/P3nbp1/RBQ2B2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kg3 b5 Kh4 c5 Kg5 b4 h4 b3 d4 b2 e4 c4 a6 g6 e6 Kd6+ e7 c3 h6 c2 a7 Ba6 h5 Nc6 e5+ Kc7 e6 Kd6 h7 Na5 h6 Nc6 Nc3 b1B Nce2 Nb8 Nf3 Qa5 e8B Ne7 Kf6 g5 Rh3 Ng6 e7 g4 Bd7 g3 Bf5 Rg8 h8N g2 h7 Nc6 Bh6 Qe1 Qc1 Rd8 a8R Rg7 Ra7 Nf4 Ng6 Bb5 h8B Rd7 Rg3 Nh3 Nge5 Rb7 Bh7 Rg5 B8g7 Qc3 Nd3 Qb3 Qe1 c1Q e8N+ Kd7 d6 Rd5 Qd2 Qe1 Qc1 Qf2 Nb2 Bf5 Nd3 Re5 d5 Nd4 Bg6 Bc6 Bh7 Nb5 Ned4 Nc3 Bg6 Ne2 Bh7 Kd8 d7 Bc5 Nd6 Kc7 d8B+ Kd7 Ne4 Qe1 d6 Rd5 Neg5 Qf2 Rg4 Qh4 Rg3 Bb6 Ne6 Bf2 Ned4 Kc8 d7+ Kb8 Be7 Kc7 Bd8+ Kd6 Bg6 Ra5 Bh7 Kd5 Ke7 f6 Bg6 Rc5 Nh7 Ke4 Bf7 Qa4 Bb3 Rd5 Bc2 Qb5 Bb1 Qb3 Ng1 Rb4 Nb2+ Qc2 Rga3 Rb7 Nd3 Qb3 Ngf3
2bqn1k1/K2p1b2/1rQPnN2/6N1/2r2P2/R1N1pB1N/Bq1R1Bb1/1N1N2Q1 b - - 0 1 legal: proof: h4 b5 e4 a5 b4 f5 exf5 g5 hxg5 Bg7 bxa5 b4 c3 b3 Rh3 Bd4 Rh2 Bc5 Rh1 Bb4 cxb4 Ra6 Ke2 Ra7 Ke1 Ra8 Ke2 Kf8 Kd3 c5 Kc4 h5 Kb5 e5 g4 c4 a4 b2 d4 e4 f4 c3 d5 c2 a6 h4 d6 h3 g6 h2 g7+ Kf7 g5 Nc6 a7 Qe8 Kb6 Rh7 b5 Rh4 f6 Nd4 a5 Nf5 a6 Bb7 g6+ Ke6 f7 Nge7 f8N+ Kf6 g8N+ Kg7 Be3 c1Q Bg2 Rd8 a8Q Qc6+ Ka7 Qc5+ b6 Qc6 Ra3 Kh8 Bf3 Qc8 Ne6 Nd5 g7+ Kh7 Nh3 Qe7 Qg1 Qc3 Bf2 Bc8 b7 e3 b8N Nc7 Nc6 Nd4 Na5 Rh5 Nc4 Rc5 Qc6 Qg5 Ne7 Ne8 g8N Rb5 Bd5 Rb6 Nf6+ Kh8 Bf3 Qga5 Neg5 Ne6 Ned5 Qc2 Nbc3 b1B Nd2 Qb2 Nd1 Bg6 N5c3 Bf7 Ndb1 Kg7 Bd5 Kf8 Ba2 Kg7 Qg4 Kh8 Rf1 h1B Qg1 Bg2 Re1 Kg7 Re2 Kf8 Nfh7+ Kg8 Rc2 Bb7 Rd2 Rc8 Nf6+ Kf8 Qd5 Rc4 Qc6 Kg7 Kb8 Kf8 a7 Kg7 a8B Bc8+ Bb7 Kh8 Nge4 Qg5 Ka7 Qg8 Neg5 Qf8 Rd3 Qe7 Rd2 Qd8 Qc7 Kg7 Bf3 Kh8 Qc6 Kg7 Nh5+ Kg8 Nf6+
1QKb4/1QQp1Pq1/N1R2b2/Rbr1Q3/r2B2k1/1pPn1Q2/2QN1q2/5BnB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 g5 f4 b5 h4 b4 a4 g4 h6 g3 h7 b3 h5 g2 c6 e4 c3 e3 c7 e2 a6 e1B a7 Bd6 a5 Be7 h6 Bd2 a6 Bb4 Qc2 Bf8 Ne2 g1Q Nd4 Nc6 Ne6 Qf2 Nc5 Qe1 Ra5 Be3 Nd2 Bb7 c8Q Bd6 Qc7 Rb8 a8B Qe7 a7 Bf2 Na6 Be5 Rh5 Kf7 f6 Rc8 f5 Bb6 Rg5 Qe2 Rg6 Qf2 Ba3 Qf8 Bc5 Qg7 Bd4 Nb4+ Kc4 Bc5 Kb5 Be7 Kb6 Bc6 Bb7 Ba4 a8Q Bb5 Bh1 Nd3 Kb7 Bd8 Qab8 Ne7 Qa8 Rf8 h8Q Nc6 h7 Re8 Qa7 Ra8 Qab6 Ra7+ Kc8 Rf8 Qbb7 Rg8 Be3 Nd4 Rh6 Ne2 Bd4 Ng1 Rg6 Ke8 f7+ Ke7 f6+ Ke6 f8Q Kf5 f7 Kf4 Rc6 Kg4 Qe7 Bf6 Qee5 Re8 Qd5 Re5 Qf3+ Kh4 Qe8 Rc5 h8Q+ Kg5 Qhf8 Kh4 Qfd6 Kg5 Qee5+ Kh4 Qfe3 Kg4 Qcb8 Ra8 Qdc7 Qe2 Ra1 Nf4 Nb4 Qf2 Ra3 Ra5 Na6 Nd3 Ra1 Ra4 Ra2 Rb4 Ra5 Ra4 Qf3+
7B/qrP1R2Q/R1b2Rp1/kN4Rb/1Np1rn1q/K2Rbn2/1B2BP2/2Q2R2 b - - 0 1 illegal: No proof kernel
1R2B3/b1pq2BN/1B3Qn1/1P1kbP2/6K1/R2Bpr1B/3N1qn1/2rQ1bBN b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 g4 a5 b4 h5 d4 e5 b6 h4 b7 a4 g6 a3 b5 h3 g5 a2 f6 h2 f7 Be7 f8N Nf6 g7 Rh4 g8B Ng4 g6 Qd7 g7 Rh6 Bh3 Rg6 Ne2 Qd8 Ng3 Qe8 Be3 Ra6 Bh7 Re6 g8B Bd8 Nd2 Rh6 Bd3 Rh4 Nh7 Ra3 Bf7 Nd7 b8B Bf6 Ba7 Nf8 Bb6 Qd7 Be8 Ng6 Rf1 Rb3 Nh1 e4+ Kg3 Rh5 f4 Be5 Bg1 Ne3 Rf3 Ng2 Re3 Rf5 Kg4 Rc3 Rf3 Ke7 d6+ Ke6 Rf2 e3 Rf1 Qg7 d7 Kd5 d8B Rc1 Bf6 Qd7 Bg7 Bb7 Rb1 a1B Rb3 Bc3 Ra3 Bb4 Rf2 Bc5 Rf3 Kd6 d5 Bc6 Ng3 h1Q Rf2 Qh2 Nh1 Ne1 Rf3 Qf2 Rg3 Ng2 Rf3 Ke7 d6+ Ke6 Rg3 Kd5 Rf3 Qe6 d7 Bb7 d8Q+ Qd7 Ba5 Ba7 Qf6 Kd4 Rg3 Be4 Bb6+ Kd5 Bc2 Bd3 Bb1 Bf1 Bd3 Rh5+ f5 Rh4+ Kg5 Rf4 Rg4 Rf3 Re4 N2h4 Kg4 Ng2 Rea4 Bb8 Ra8 Ba7 Rb8
1n1b2nB/pK4n1/6B1/R1BNrp1P/rB2q1R1/P2Rq2k/2N1QR1b/4R2N b - - 0 1 legal: proof: g4 d5 e4 c5 exd5 e5 b4 h5 gxh5 e4 bxc5 e3 f3 Bf5 Ba3 Ne7 Bc1 Be4 fxe4 Ng8 Ke2 Ke7 Kd3 Kf6 Kd4 Kg5 h4+ Kf4 c4 Kg3 h6 b5 h5 g5 e5 g4 e6 e2 h7 e1B c6 b4 e7 f6 Kc5 b3 d4 b2 c7 Nd7+ Kc6 Bg7 e8R Nh6 c8N Bd2 c5 Nb6 d6 Bc3 d7 Rg8 h8B Be1 d5 Rb8 d6 Nf7 Bd2 Na4 Re2 Ra8 Na3 b1Q Nb6 Qe4+ Nd5 Nh6 Nc2 Nb6 Bb4 Qde7 d8R Nd7 Kb7 Nb8+ d7 f5 c6 Bec3 c7 Bgf6 c8R Bce5 Rf2 Re8 a3 Ng8 Bc4 Qc5 Qe1 Qce3 Rh4 Re6 Rd1 Ra6 Rc5 Ra4 Nh3 Bg5 Re8 Bd8 Rd3 Bd6 Ra5 B6c7 Rf3+ Kh2 Rf4 g3 Rhg4 g2 Nf2 g1N Nh1 Ne2 Rf2+ Kh3 Re7 Nf4 Qe2 Ne6 Re8 Bg5 d8B Bh2 Bde7 Ng7 Bec5 Bd8 Re7 Na6 Re5 Rc8 Bb5 Nb8 Be8 Rc6 Bg6 Re6 Rfg2 Qf4 Re4 Re5 Rf2 Qff3 Rg1 Qg2 Rg4 Qe4 Re1
B2bQ1KB/rB1N1R2/1B3b2/1P1n3b/b1pQ3q/4NrBn/kB1pP3/6NR b - - 0 1 illegal: No proof kernel
2b1kN2/Br5N/B2K1Q1r/p2RPr1N/2R5/1RBN1R1R/1b1q2pP/n1n1r3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 a5 Kg3 f5 Kf4 c5 e4 g6 b4 c4 d4 c3 h6 c2 b6 Ra7 b5 Nf6 e6 g5+ Ke5 g4 h7 f4 b7 f3 e7 g3 b6 g2 d6 f2 d7+ Kf7 e8N Ng8 d5 Bc5 d6 Nh6 Ba6 f1R Ra4 Ba3 Qf3+ Nf5 Ng7 Rf8 h8R Qc7 d8R Bb2+ Nc3 Rd1 Ne2 Ba3 Bb2 c1R Rc4 Bd7 Nd5 Rb1 Rh3 Bc5 Rf1 Be8 Bc3 Ba3 Nc1 Qd7 Nh5 Bb2 Ndf6 Nd4 Nd3 Nb3 Kd5 Nc6 b8B Na1 b7 Rh8 e5 Re1 Qf4 Rf8 Rff3 Nd4 Qh4 Ra8 Ba7 Ne2 b8R Nc1 Rb3 Rb8 Qg5 Rb7 Qh6 Rh8 Qg5 Rh6 Nh7+ Qf5 d7 Qf4 Qf5+ Ke7 Kc5 Bf7 Qg6 Be6 Qg5+ Kf7 Kd6 Rf1 Rb8 Rf2 d8N+ Ke8 Qf6 Bc8 Ne6 Qd2 Nef8 Rf1 Rfg3 Rf5 Rf3 Na2 Rb5 Re1 Rbc5 Nc1 Rd5 Rf7 Rbb4 Rb7 Rb3
R2Qq3/1n2b1Rb/4kbrP/p3Bn2/1N1Rp1b1/BBB1N3/1RNP3K/R1r5 b - - 0 1 illegal: No proof kernel
1Q5n/2RBB1k1/3p1n2/K5N1/1r3r2/Q1Qn2p1/1qPnRRPQ/Qbb1N2Q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 g4 d4 Qc7 dxc5 Qf4 Ne2 Nh6 Ng1 Qg5 hxg5 Ng8 Kd2 Kf7 Kc3 a5 f4 e5 b4 h5 g6+ Kf6 c6 a4 c7 a3 b6 a2 g7 e4 b5 e3 b7 h4 b6 h3 Nd2 e2 Ndf3 e1N Bb5 h2 Nh3 Rh6 Nhg5 Rg6 Ba3 Ne7 Kb4 Rh6 g8Q Ra6 Qh7 Ra8 Qb1 Na6+ Ka5 Rh4 b8Q Nd3 b7 Ng6 Re1 h1N Re2 Ng3 Ne1 Nf1 Qa7 g3 b8Q Bb7 c8Q Nac5 Qh5 Rg4 Qh2 Ne4 Be7+ Kg7 Qc3+ Nf6 Qc1 Bd5 Q1a3 d6 Bd7 Nb4 Rb1 Nd3 Rb7 a1Q Rc7 Qc1 Qb1 Bg8 Qba1 Rb8 Qag1 Ba2 Qgh1 Kg8 Qh5 Rb4 Q5h2 Ne8 f6 Qb2 f5 Bh6 Qc5 Rge4 f7+ Kg7 f8R Bb1 Qcc3+ Red4 Rf6 Nh8 Rf8 Nd2 f6+ Kg6 f7 Rf4 Rf2 Nf6 Re8 Rfe4 f8Q Red4 Ra8 Rf4 Qb8 Kg7 Raa7 Rbc4 Rab7 Rce4 Rb5 Rb4 Re5 Rh4 Bb5 Nf3 Nh7 Bc1 Bd7 Rhf4 Ree2 Nd2 Ng5
n1KNNB2/1R1n1qBr/R1pQ2P1/2rP1B1k/4Q1r1/1B4Br/1pB5/bbQ5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 h5 Kd4 b5 Ke5 e6 d4 b4 g4 h4 f4 b3 a4 h3 f6 Kg6 f7 h2 d6 Rh5 d7 Rh3 a6 Bb7 a7 Na6 f5+ Kg7 a5 Bd5 f6+ Kg6 Nd2 Be4 Nc4 Bb7 Nf3 Be7 f8B Bb4 f7 Bd5 Bf4 Nf6 Bg3 Qe8 d8Q Nh5 Qc1 Bc6 Bg7 Bc5 f8B Nb8 a6 Qf7 Nd6 Bb6 Bd3+ Be4 Bc2 Qe7 Ne8 Nf6 Qd6 Nd5 Ra5 Bd3 Rb5 Ba5 Rb7 Nb6 Re1 h1R Re4 Bb5 Rf4+ Bd3 Rf6+ Kh7 Rg6 Qf7 Rf6 Bc3 g6+ Kg8 g5 Ba1 Ne1 b2 Ng2 Rg1 Nf4 Rh7 Bh8 Rh3 g7 Kh7 g6+ Kh6 g8B+ Kg5 Bhg7 Bf5 Nd5+ Kh5 Nb4 Rg2 Nc6 N8d7+ Kf4 Be4 Nd8 Rc8 a8B Bd3 a7 e5+ Ke3 e4 Kf4 Rg1 Kf5 Rg2 Be5 Rg4 Bg3 Qe7 Bgb3 Qf7 Bd1 Bb1 Bdc2 Qc4 Re6 e3 Rf6 Qf1+ Ke6 e2 Bd1 Rh2 Rb8 e1R+ Be4 Ne5 Rf4 Kg5 a8Q Rh7 Bdc2 Kh5 d5 Qf2 Qa4 Rh1 Rb7 Na8 Bed3 Qf1 Rc4 Rh3 Rc6 Nd7 Ra6 Nc5+ Ke5 Qf7 Bf5 Ba2 Qe4 Bb1 Kd4 Nd7 Kc4 Qg8 Kb5 Qf7 Kc6 Rb8 Rba7 Rb5 Rb7 Ra5 Rba7 Rc5+ Kb7 c6 Kc8 Nf6 Rc7 Nd7 Rb7
1b1R1n2/8/1Pr1Rr2/bq1RpN1p/2Q2Rn1/1RB1b2R/2B1QP2/KbB3Nk b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 Kd2 Kd6 Kc3 e5 g4 a5 b4 h5 Kb2 c5 g6 a4 g7 c4 b6 Ra7 f6 Na6 f7 Rc7 b7 Ne7 g8Q Bd7 b8R Ng6 g5 Qf6 b5 Rc6 Nc3 Nc5 Rh3 Be6 Nce2 Qf5 Ng3 Nd7 Bd3 Nf6 Bc2 Ng4 Qe2 a3+ Kb1 Be7 f8R Qd3 Rf4 Nf8 g6 c3 g7 Bf5 Qf7 Rh7 g8R Rh6 Rg7 Re6 Rg6 Rf6 Ra2 Bd8 Ka1 Bc7 Rb2 a2 Rb3 Qc4 Ra8 Be4 Ra5 Bb8 b6 Bd3 Qg8 Qb5 Nf5+ Kd7 d6 Be4 Qh7+ Ke6 d7 Kd5 d8B Bd3 Qc7 Be4 Bb1 c2 Be7 Bd3 Bea3 Be4 Bd2 c1B Bc3 Be3 Bc1 Bd3 Bc2 Be4 Kb2 a1B+ Kb1 Bb2 Qc8 Ba3 Ka1 Bb4 Qa6 Rf7 Re6 Rf6 Qc8 Bd3 Ra7 Ba5 Rd7+ Kc4 d5+ Kc5 d6 Kd5 Rf7 Be4 d7 Bd3 Rc4 Be4 Qa6 Bd3 Rc5+ Ke4 d8R Kf4 Rcd5 Be4 Ng3 Bg6 Qc4+ Be4 N1e2+ Kf3 Nf5+ Kg2 Ng1 Bd3 Bd1 Bb1 Bc2 Qc5 Qe2 Qb4 Qac4 Qb5 Rf3 Kh2 Rf4 Kh1 Rg7 Nh6 Rg3 Ng4 Rh3+
Rk1b3B/4b2p/Rb5B/1Kpn2Q1/BB1rN2q/Pn1rQ1P1/3B3N/N5Bb b - - 0 1 illegal: No proof kernel
8/6pk/1Qn1B2r/NnQ2P2/1bpR3Q/n1RQqQ1r/3P2Nn/Qb1KBR2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 f4 a5 h4 c5 d6 e5 f6 e4 f5 e3 d7 a4 h6 a3 b6 a2 b5 e2 h5 Ne7 b7 Kg8 h7+ Kf7 h6 Nbc6 b8Q Ng6 b6 Bd6 b7 Ra3 Bb2 Nce7 Bd4 Re8 h8Q Nf8 h7 Ra7 Nh3 Nd5 Bf2 Re4 Qa8 Rg4 b8Q Ba6 Na3 Rg3 Nf4 Nc7 Ng2 Rh3 Qb6 Bd3 Qf3 Nb5 Rc1 a1N Rc3 Ng6 Nc4 Ne7 Na5 Qe8 d8R Nc6 Qb1 Be4 Qbd3 Ra6 Rd7+ Qe7 Qa8 c4 h8Q Bb4 Rd4 Qe8 Qh4 Kg8 Qaa7 Qe5 Bg3 Qf4 Rg1 Qh6 f7+ Kh7 f8Q Nc2+ Kf2 e1N Ke2 Ne7 Kd1 Nc6 Qfc5 Nca3 Be2 Qh5 Rf1 Qh6 Qff4 Nf3 Be1 Nh2 Bh5 Qg5 Qff3 Qe3 Bf7+ Qh6 Qhg3 Qg5 Be6 Qe3 Qb1 Bd3 Qa1 Bb1 Qd7 Ra8 Qgg4 Rf8 Qg5 Rf6 Qh4+ Rh6 Qdd5 Nd8 Qde4 Nc6 Qd3
8/RBR1RPbp/3QQrn1/p2b1N2/q2N1BK1/1BB2rn1/2B1P1n1/k4B1n b - - 0 1 illegal: No proof kernel
6N1/2B1PQBq/3Pp1Bn/N2R2bb/4Q2k/1r3rp1/N1BbR1B1/KBb4n b - - 0 1 illegal: No proof kernel
2RR1rNR/Nb1P4/1b1nn3/k2Bp3/1bRR1R2/3Pp3/1Q1NK2B/1rq1bQ2 b - - 0 1 illegal: Other
4RB2/3Pn2r/Rb1pk2r/B2RP2b/BpR2R2/b4Q1q/1n2N1N1/NBKb4 b - - 0 1 illegal: No proof kernel
n5rN/2NP1rp1/4R3/NRqQQ1Bb/b5kN/p1n1R3/3P3b/1NKB1Nb1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Ke7 b4 c5 h4 f5 e6 Kf6 h6 a5 b6 f4 h7 f3 h5 Kg5 e7 a4 e8Q c4 b7 a3 h6 c3 d6 c2 e5 Be6 b5 Na6 b8R Ra7 d7 Rb7 b6 Nc5 Bb2 c1B Ne2 Bd5 e6 Kg4 e7 Na6 Rh3 Nb4 Ng3 Qc7 Qb3 f2+ Kd1 Bh1 Bf6 Qc4 Bg5 Bb2 Be2+ Bf3 Nf1 Qc5 Qd5 Rc7 b7 Nf6 Ra8 Na2 b8N Rc8 Nc6 Bd4 Ra6 Ra8 Na5 Nc3+ Kc1 Rg8 h8N Be5 h7 Bh2 Qb8 Ne8 Re6 Nc7 e8N Ra6 Qb2 Na8 Nc7 Bg1 Qb5 Bd6 Bd1 Bdh2 Ng6 Rb6 h8N Rd6 Re5 Rf6 Nh4 Rf7 Re6 Be2 Rhe3 Bf3 Ng3 f1B Ra2 Bc4 Rb2 Bb3 Nf1 Bc2 Qb8 Ba4 Rb5 Kh3 Re2 Bh5 Qe8 Kg4 Qe7 Bd6 Qf6 Bf4 Qfe5 Bfh2 Re3+
1BN4b/KRnpnn1n/3B3R/RP2NP2/2B1NpBk/R2q3B/3Q2b1/r5r1 b - - 0 1 illegal: No proof kernel
1Q3n1N/3pRrrB/P2bnqR1/KBBb3p/1P1N3N/4k1rR/B3B3/3r1R2 b - - 0 1 illegal: No proof kernel
1NN1B2q/PkBB2Bp/nB1brr2/pr4Q1/4R3/R2P2Q1/2n5/1r1b1BKQ b - - 0 1 illegal: No proof kernel
k6r/B1KN3q/bR4Pq/n2NNrp1/p1B2NP1/rn3R2/B5qR/N3Q2R b - - 0 1 illegal: No extended proof kernel
2b5/r3pK2/1N1rR2N/1k2P1rQ/q2pq1RB/R1bbB1P1/N1R1R1B1/nN6 b - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 c5 dxc5 b4 g4 Nc6 a3 Nd4 axb4 Nf5 b5 Ng3 fxg3 Qa5+ Nc3 Qb6 Nb1 Qd8 Kf2 a5 Ke3 f5 Kf4 h5 Ke5 d5 b4 Kd7 e4 a4 c4 a3 b6 Kc6 b5+ Kb7 g6 f4 g5 h4 g7 a2 c6+ Kb8 b7 Ka7 b8R f3 b6+ Ka6 g6 d4 c5+ Ka5 c7 f2 c6 h3 b7 h2 Qh5 Be6 c8N Ra7 c7 Ra8 Nb6 Qe8 c8R Ra6 Bg5 Qd8 Bh4 Nf6 g8R Qd7 g7 Qa4 Ne2 Kb5 Rc2 Nd5 Bg2 f1B Nc1 Bd3 Re1 h1Q Ree2 Nb4 Ra8 Ra5 b8B Bc8 Ra6 Rh6 Bc7 Rd6 Bb8 Rd7 Ke6+ Rd5+ Kf7 Qe1 Rc3 Nc2 Bf4 Rg5 e5 Qh1 Ra8 Ra7 Be3 Rd7 Ra6 Rd6 Rh8 Qe1 g8N Bg7 Rh7 Bh6 Rg7 Qh1 Bf1 Qe4 Bg2 Rg4 Rg6 Bf4 Nh6 Rg5 Bf2 Bd2 Be3 Nb4 Rc2 Bc3 Ra8 Na6 Rf6 Nc5 Rf4 Nb3 Rg4 Qb4 Ra3 Qa5 Nd2 Qa4 Rb1 a1R Na2 Qea8 Rf1 Qc6 Rf6 Qe4 Nb4 Ra2 Nb1 Na1 Re6 Qaa8 Rb3 Ra7 Ra3 Qac6 Na2 Qc4 Rf4 Qa4 Rg4
1Nb1KR1r/1B1pp3/1r1R2R1/P1bP1Rqq/1Rr5/4q2Q/B6B/N2nNk1N b - - 0 1 illegal: No possible last move
r4n2/B3p3/1NBn1rkN/3Q2R1/P2pN1B1/1R3q1q/2KPR2n/2b1qBNB b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 Ba6 c4 Bb5 cxb5 Ra7 Rh3 Ra6 Rh1 Ra8 g4 Kf7 a4 c5 f4 d5 g6+ Kg7 a6 h5 a7 b3 b6 c4 g5 d4 b7 b2 Nc3 b1N Qf3 h4 Kd1 h3 Qd5 h2 Ba3 Rh3 f6+ Kh8 f5 Qa5 g7+ Kh7 g6+ Kh6 f7 Nd7 b8R Qb4 f6 Nc5 Kc2 Qb5 Ne4 Ne6 Bc5 Qa5 Rb3 Nc3 Re1 Rf3 Re2 Nb5 Bb6 c3 Bc5 Re8 a8B Nd6 Bc6 Qa8 Ba7 Rc8 Nf2 Rf5 Ng4+ Kg5 Nh6 Rb8 Ng4 Nh6 g8B Bg7 f8N Re8 f7 Be5 g7 Rf6 Nd7 Kg6 Nc5 Nf8 Ne4 Qb7 Nh3 Ra8 Rg1 h1Q Rgg2 Qd7 Ng1 Qh3 Rg3 Qf5 Rgg2 Qff3 Bh7+ Kh5 Bf5 Bh2 Bc8+ Kg6 g8B Bg3 Ne3 Ng4 Nf5 Nh2 Nh6 Ne8 Bg4 Bd6 Rg3 Ba3 Rgg2 Nd6 Rg3 Bc1 Rgg2 Ne6 f8N+ Kg7 Nd7 Nf8 Nb6 Kg6 B8e6 Qf2 Bf3+ Qfg3 Kd3 c2 Bg4 Qf4 Rg3 Qf5 Bh1 Qf3+ Re3 Ba3 Rg2 c1Q Rg3 Qe1 Kc2 Bc1 Re2 Qh4 Rh3 Qhg3 Rh5 Qh3 Rg5+
n2qR1NR/3PB1kB/2R2n2/pQ3b2/b4Nn1/P3Q1pK/1q2R2R/2bR1r1B b - - 0 1 legal: proof: g4 b5 b4 c5 bxc5 d5 e4 f5 exd5 a5 gxf5 g5 h3 g4 h4 Ra6 Bc4 Rg6 Bf1 Rg5 hxg5 Bg7 Rh4 Bh6 Rh1 Bf8 d4 Kf7 c4 h5 f4 e5 Kf2 h4 Kg2 g3 c6 b4 d6 b3 a3 b2 g6+ Kf6 c7 e4 g7 e3 c5 e2 d7 e1Q d5 Bb7 c8R Ba6 c6 Qee7 c7 Qd6 Qd4+ Kf7 f6 Bc4 f5 Rh6 Ne2 Bb3 Ra2 Rg6 Qe3 Be7 Rh2 Rg5 Nd2 b1N Kh3 Qb4 d6 Bc2 Nf4 Bf8 Ne4 Qe1 Bg2 Qe2 Bh1 Nh6 g8R Qf3 Rh8 Ba4 Rae2 Qf2 Bd2 Rg4 Bb4 Nc3 Bc5 Nd5 Bb4 Qe8 d8R Nb6 Rd7+ Qe7 Re8 Na8 c8B Rg8 Ba6 Rg7 Bd3 Ng4 Rc8 Rh7 Rc6 Bh6 Rdd8 Nd7 Rde8 Ndb6 d7 Qd8 Be7 Bg5 Rc1 Nd5 Rd1 Rg7 Bb1 Rg8 Bc2 Rf8 Rh6 Kg8 f7+ Kg7 Rc6 Bh6 Nf6 Bg5 Ng8 Ndf6 Qb6 Qd4 Qb5 Qb2 Nh6 Rh8 Ng8 Rh6 f8R Rg6 Nd5 Bc1 Nf4 Rg5 Nh6 Rh5 Rh8 Rg5 Ng8 Rh5 Kg2 h3+ Kg1 Qb1 Nd3 Nb6 Rhg2 h2+ Kf1 Ne4 f6+ Kg6 f7+ Kg7 Rgf2 Rf5 Kg2 Na8 Kh3 Qb2 Bb1 Rf6 f8Q+ Kg6 Bg2 h1B Qh6+ Kf7 Qd2 Kg7 Qe3 Rf3 Nf4 Nef6 Rff1 Rf2 Bh7 Rf3 Rg1 Rf1 Bd5 Be4 Rh1 Bb1 Rhh2 Bf5 Bh1
Rb1RR1kN/QQ1Br1B1/3RP1pn/2Bq2N1/K1b1b3/3np1P1/5qR1/1R3n2 b - - 0 1 illegal: No proof kernel
R4qnK/BrR2B1b/2k3Pb/RpqR3R/Q5b1/1r1pq2Q/1P4R1/1BN3N1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 exf5 c4 a5 Na6 d3 Nc7 dxc4 Nd5 c5 Nb6 axb6 Bb7 Nc3 Ba6 Nb1 Bc8 Kd2 h5 Kc3 e5 g4 d5 f4 Kd7 g6 a5 b7 h4 b8R e4 Kd4 e3 Ke5 d4 c4 h3 g7 h2 f6 e2 f5 e1Q+ Be3 a4 g5 a3 c6+ Kc7 g6 a2 f7 Rh3 c5 Rh5 Qa4 Rg5 Nc3 Qf2 Nce2 Qd7 Nc1 Nh6 Kf6 Bd6 g8B Be7+ Kg7 Qg2 f8R Qe6 f6 Qed5 f7 Bg4 Rbd8 Qf2 Bd3 Rb8 Kh8 Rb7 Bb1 d3 Rfe8 Bf8 Bd4 Qff3 Re2 Qe3 Rg2 Rf5 Rd6 Rf4 Rd8 Qg5 Rd5 Qd8 Bc3 Rb4 Bd4 Bd6 f8R Bf4 Re8 Rb3 Bf7 Ng8 Rf8 Qd6 Ra8 Bh6 Ra5 Kc8 c7 Kd7 Ra8 Kc6 c8R+ Qc7 Rcb8 Qce7 Ra5 Qf8 Rba8 Kc7 c6 Qc5 Rg5 Kb6 c7 Kc6 Rd5 Qf8 Ba7 Qfc5 Bc2 Qf8 Rb1 a1Q Bb6 Qaa3 Ba7 Qac5 c8Q+ Rc7 Qf5 Rb7 Ra1 Bd1 Qh3 Bg4 Bb1 Qb8 Nge2 Qbf8 Re1 h1B Ng1 Bd7 Ree2 Bg4 Rh2 Be4 Reg2 Bef5 Rh1 Be6 Ra3 Rb4 Rc3 Rb3 Rhh2 Ne7+ Kh7 Qc4 Qh5 Kc7 Be8 Bg8+ Kh8 Qc6 Bf7 Bh7+ Bg8 Qf1 Be6 Ng8 Rh1 Qf8 Bf7 Bh3 Qf3 Bg4 Rhh5 Qc4 Qh3 Qc6 Rdg5 Kd7 Rcc2 Qd5 Rc6 Qdc5 Rc7+ Kd6 Rd7+ Kc6 Rgd5 Bf3 Re7 Bg4 Rc7+
q2k1Nr1/nB2p3/p3RqbK/1R4NP/nQ3N2/P1NQN1n1/1r4r1/BN4Q1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 g5 exd5 g4 b4 Bh6 bxc5 Bg5 fxg5 Bd7 Qe2 Be6 Qd1 Bc8 Kf2 b5 Kg3 f5 Kh4 a6 c4 b4 d4 g3 h6 b3 Kh5 b2 h4 f4 c6 f3 g6 f2 d6 g2 d7+ Kf8 d5 Ra7 c7 Ra8 d6 Nc6 h7 Rb8 c5 Rb4 g7+ Kf7 a3 Rg4 Ne2 g1Q Nec3 Rg2 Qd3 Bb7 c8N Qc7 d8N+ Ke8 Nf7 Rg6 Nb6 Nh6 Nc4 Rg8 h8N Nb8 c6 Qd8 c7 Nd7 c8Q Rg4 Qb8 Rf4 Ng6 Rf3 Nf4 Be4 Ne3 Ne5 Bg2 f1R Ng5 Rg3 Qb4 Qa8 d7+ Kd8 Rh3 Bh7 Bb7 Nc6 Rh2 Nf5 Re2 Rg4 Bd2 Ng3+ Kh6 Rd1 h5 Qf1 Be1 Rd2 Bf2 Re8 g8Q Na7 Bg1 Bg6 Bh2 Kc7 d8N Qf3 Qg7 Rg8 Bg1 Qc6 Bf2 Qd6 Nde6+ Kd7 Nf8+ Kd8 Nf5 Rc2 Bd4 Qf6 Re6 Rg2 Ra2 Rh4 Ne3 Rhh2 Nd2 b1N Rb2 Nc8 Nce2 Nc3 Nb1 Na4 Rb3 Ke8 Ba1 Na7 Nec3 Rb2 Qb6 Rhg2 Rb5 Qd4 Qc5 Kd8 Qb4 Qd6 Qf1 Qc6 Qg1 Qb6 Qgd4+ Qd6 Qe4 Qe5 Qc2 Qf6 Qd3+
B1N2BNr/n1R5/b1p1p1r1/1BB1KnB1/3P1NR1/qQR4k/3nP3/4qN1r b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 b4 fxg5 b3 h4 e6 g6 Qd7 g7 Nf6 g5 Qe7 g6 Qd8 axb3 Be7 b4 Ng8 b5 Bg5 hxg5 Ke7 Rh6 Kd7 Rh1 Ke8 Kf2 Kd7 Kf3 a5 Ke4 f5+ Ke5 h5 d4 a4 b4 f4 d6 h4 b6 h3 b7 h2 b5 f3 b6 f2 Qb3 a3 Nh3 a2 Rg1 h1R Rg4 Qe8 Nf4 Ra7 Bg2 f1Q Nd3 Rg1 Nd2 Ra6 Ba3 Ra8 Rc1 a1N Rc3 Rh4 Bc5 Nf6 g8N Rgh1 g7 Rh5 Ne7 Qb1 g8B Qe1 Nf1 Nd5 Bf7 Rh6 g6 Ne3 g7 Nf5 g8N Qf8 Be8+ Kd8 Bb5 Rg6 d7 Nc6+ Ke4 Na7 b8B Bb7+ Ke5 Ba6 Nc8 Qe7 Bb7 c6 Bbd6 Rb8 Ba8 Qf8 Qa3 Nb3 b7 Nd2 Qb3 Qe7 Ba3 Qf8 Bdc5 Qe7 Nd6 Rc8 b8R Qf8 Rb7 Rb8 Nf6 Ke7 Nc8+ Kf7 Bab4 Kg7 d8B+ Kh6 Ng8+ Kh5 Rc7 Qe7 Rg2 Kh4 Rg4+ Kh3 Ba3 Qf8 Bg5 Qe7 Nd6 Re8 Nc8 Rf8 Nh6 Rh8 Ng8 Qf7 Bf8 Qd7 Bac5 Qe7 Bb6 Qb4 Bbc5 Qa3 Nf4+
b1N2bn1/3bBQ1B/K1Np4/nP4r1/N1q1pn2/3RBkNN/R2P1qR1/2B5 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 b4 hxg5 b3 axb3 Na6 b4 Nb8 b5 Bg7 Rh5 Bh6 Rh1 Bf8 b4 a5 c5 a4 c6 Na6 b6 Rb8 b5 Rb7 cxb7 Nb8 Ke2 Kf7 Kd3 c5 Kc4 e5 f4 h5 g4 d6 g6+ Kf6 g5+ Kg7 Ne2 a3 Nbc3 a2 Qb3 h4 Ng3 h3 Na4 h2 Bd3 Nd7 b8B Rh4 f6+ Kh8 f7 Kg7 b7 Ne7 Ba7 Rh5 b8N Rh4 Nc6 Rh3 f5 Qb6 f6+ Kh8 Rg1 h1B Rg2 Rh5 Kc3 c4 Kb4 Qe3 Ka5 Qf2 Be3 c3 Bb1 c2 g7+ Kh7 g8N Nd5 Nge7 Nf4 g6+ Kh6 g7 Kg5 g8R+ Kh4 Rh8 Kg4 Qd5 Rf5 Rh3 Rg5 Qb3 Ba6 Nc8 Kf3 Qe6 Bb7 Qf5 Ba8 Ka6 Nb6 Qe6 Nbd5 Qf5 Ne7 Qe6 Bg7 f8N Ng8 f7 Bh6 Nh7 Bf8 Ba3 c1N Bg6 Nb3 Bc1 Na5 Qc4 Bg7 f8B e4 Be7 Bf8 Rgh2 Bg2 Qf7 Bf1 Rg2 Be2 Nf6 Bc4 Ng4 Be6 Bf5 Bd7 Bh7 Qf1 Nf2 Qc4 Rb1 a1Q Rb2 Qb1 Ra2 Qa1 Rh5 Qac3 Nh3 Qf1 Rh6 Qf2 Rf6 Qb4 Rf5 Qc3 Rd5 Qc4 Rd3
1q2Q1qb/kQP3QQ/p1rpn3/5bR1/QR3qnK/1N3R2/PnB4N/BQ6 b - - 0 1 legal: proof: d4 g5 h4 c5 g4 e5 dxe5 c4 f4 c3 fxg5 Bd6 g6 Ke7 g7 Ba3 bxc3 Ke8 c4 Bd6 c5 Bf8 g5 b5 c6 a6 c7 Nc6 h5 Rb8 Rh2 Na7 Rh3 Rb6 Rh1 Rg6 hxg6 Qf6 Na3 Qe7 Nb1 Qd8 Kf2 f5 Kg3 h5 c4 d6 e4 Kd7 c5 Kc6 e6 Kb7 e5 b4 e7 f4+ Kh4 f3 e8Q b3 e6 b2 c6+ Kb6 e7 f2 Nd2 b1Q Ngf3 Be6 c8Q Nf6 g8Q Bg4 c7 Nb5 g7 Nd4 g6 Ne6 Nh2 Ka7 Bd3 f1Q Bb2 Bf5 Nb3 Ng4 Bc2 Qf4 Qa4 Qe8 Rf1 Rh6 Kh3 h4 Qh7 Rh5 g8Q Bg7 Rf3 Bh8 Qgg7 Qg8 e8Q Rg5 Bf6 Qb2 Rb1 Rh5 Na5 Qb8 Rb4 Rg5 Qb1 Rh5 Ba1 Rg5 Kg2 h3+ Kh1 Rh5 Nb3 Rh4 Nf1 h2 Kg2 h1N Nh2 Rh3 Qgd7 Qf7 g7 Nhf2 g8R Nd1 Rg5 Qg8 Qdg7 Nb2 Rf2 Rd3 Rf3 Rd4 Kh3 Rc4 Kh4 Rc6 Qb7+
1BB5/nrR1r2b/3N2PN/1RQ1p2R/2NNPk2/1N2b2K/1p2b2N/1Q1q2bb b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h4 a3 bxa3 Nh6 a4 Ng8 a5 Bg7 Na3 Bh6 Nb1 Bf8 g4 Ra6 g6 Be6 g5 Nc6 h5 Ne5 g7 Ng6 hxg6 Ra8 Ba3 Bd7 Bc1 Bc8 Kf2 Kd7 Kg3 Kd6 e4 Ke5 d4+ Kd6 a4 h5 a6 b5 a7 c5 a5 f5 a6 e6 Nd2 c4 Bh3 c3 Nb3 c2 Ra5 b4 Rb5 Qd7 Bf4+ Ke7 d6+ Kd8 d5 c1B Nf3 Rh7 Nh2 Be3 Qb1 Ne7 g8R Rb8 a8Q Nc6 g7 Rb7 Qa7 h4+ Kg2 Bg1 Qc5 Na7 Be5 f4 g6 Be3 Bf5 f3+ Kh3 f2 Rc1 Ke8 Rh8 Kd8 g8N Re7 Rh5 f1B+ Kg4 h3 Nh6 Be2+ Kh4 Qc7 d7 Qd6 Rc3 Bg7 Bf4 Bgd4 Be5 Qc6 Bb8 e5 Bg4 Qd6 Be6 Nc6 a7 Bg1 a8N Na7 Nb6 Bde3 Nd4 b3 Nc4 b2 Nb3 Rg7 Rc2 Ke7 d8N Kf6 Nc6 Rge7 Ncd4 Bd7 Bf5 Be6 Rc3 Bf7 Bc8 Bg8 Rc1 Qd7 d6 Qd8 d7 Bh7 Nhf3 h2 Kh3 h1B Nh2 Qa5 d8N Qd2 Ndf7 Qd3 Nfd6 Qd1 Rh4 Kg5 Rh5+ Kf4 Ncd2 Bg8 Qb4 Bd3 Rc7 Be2 N2c4 Bh7 Qc5
1n4nn/q1Rp2Rb/rN1B4/N3K1BN/rP6/nNp5/1N1P2B1/1kQN2Qn b - - 0 1 illegal: No possible last move
QR1K1Nr1/4N3/1n4p1/2rNP1P1/N2b1nR1/Nr3nRB/3p1kBB/4r1Rq b - - 0 1 illegal: No extended proof kernel
2nBBN1N/R1bBBb1Q/4Qr1k/1B2rR1b/6p1/1q1rr3/P3p1PB/K1N5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Ne5 h4 g4 Be2 Nf7 Bf1 Ng5 hxg5 Bd7 Nc3 Be6 Nb1 Bc8 f4 Kf7 d4 Kg7 Kd2 e5 Kc3 b5 Kb2 c5 g6 h5 a6 c4 a7 h4 f6+ Kh6 f7 h3 g7 h2 f5+ Qg5 f6 e4 d6 e3 d5 b4 d7 b3 d8B Qe5+ Nc3 Qd4 d6 Qe4 d7 Qd3 Nge2 Qe4 Be7 Kg5 d8B Rh6 Qd6 Qf3 Nf4 Be6 Nce2 c3+ Kb1 b2 Ng6 Rb8 a8B Rb5 Bc6 Re5 Bd7 Rh3 Nh8 Kh6 Qa6 Qb7 Bd2 Qb3 Nc1 Rf3 Bc4 Rg3 Rf1 h1R Bcb5 Rhh3 Rf5 Rf3 Be1 e2 Bg3 Rd3 Bh2 Rhe3 Be8 Bd5 Qe6 Bc4 Rf4 Bd5 Ra4 Bc4 Ra7 Bd5 Ba3 Ne7 g8B Nc8 Bae7 Bg7 f8N Bc4 Qd7 Bf7 Bh7 Bh5 f7 Bf6 Bf5 Bg5 Bc5 Be7 Qd5 Bd6 Bfd7 Bc7 Qe4 Qe6 Bce7 Qb6 Kc2 b1B+ Kb3 c2+ Kb2 Rf5 Qe6+ Rf6 Nfg6 Re5 f8Q+ Kg5 Nb3 c1R Qfg8 Rcc3 Nf8+ Kh6 Nc1 Bc2 Rb1 Bb3 Ka1 Qa6 Qc6 Rd4 Nd3 Bbf7 Qe6 Qa4 Rf1 Qb3 Nc1 Rce3 Rf5 Rdd3 Qh7#
2r3r1/1N3B1p/1n1q4/1BP1b2k/2BBNr1r/1NBB1RRP/np3Q2/1KQn4 b - - 0 1 legal: proof: d4 c5 dxc5 a5 e4 f5 exf5 a4 f4 a3 g4 b6 g5 Bb7 f6 Bg2 f5 Bd5 g6 Bf7 bxa3 Qc7 gxf7+ Kd8 a4 Kc8 a5 Kb7 Be3 Qd8 Bc1 Kc6 Kd2 Kd5 a4 Ke4 c4 Kf4 Kc2+ Ke4 h3 e5 c6 g5 a6 d5 a5 d4 c5 g4 c7 g3 c8B b5 a7 b4 a6 g2 Nd2+ Kf4 Bb5 Kg5 Kb1 d3 Ne4+ Kh4 Ra3 b3 Be3 d2 Nf3+ Kh5 Rg1 b2 Nd4+ Kh4 Be6 Qe7 Nb3 Qe8 Bd4 Qd7 Bec4 Qd6 Qc1 Bg7 f8B d1N f7 Kh5 f6 Nd7 Rf1 g1R Rf3 Rc8 a8B Rf1 a7 Nb6 Bad5 Ne7 a8B Nc6 Bc3 Bh6 Bg7 Rhg8 f8Q Bf4 f7 Nb4 Bab7 Na2 B7a6 Rg1 Bd3 Rg4 Bbc4 Rh4 Bab5 Qf6 Qd6 Qe7 Qf6 Qd6 f8N Bh2 Ne6 Rf4 N4g5 e4 Nd8 e3 Nb7 e2 Ne4 e1R Bh8 Reg1 Bf7+ R1g6 Bg7 Rh4 Qd4 Be5 Qf2 Rf4 Bh6 Rh4 Be3 Rf4 Bed4 Rh4 Bfd5 Rgg4 Bf7+ Qg6 Rg3 Nd5 Bb4 Nf4 Nbd2 Nd5 Be2 Nb6 Raf3 Rf4 Nb3 Rce8 Bed3 Rc8 Bfd5 Qc6 Bbc3 Qd6 Bf7+
nb1B4/1PBp1R1q/bNN1Qr1n/4n1RB/2p5/bkNP1R1N/4K3/2bRR3 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 c4 b3 axb3 Bb7 b4 Ba6 b5 Bc8 b4 a5 c5 a4 c6 Rh6 b6 Ra7 b5 Rb7 cxb7 Rh8 f4 Kf7 h4 c5 h6 g5 h7 e5 h5 a3 h6 e4 d3 g4 f6 Ke6 f7 Kd5 f5 g3 f6 e3 Ke2 a2 Nc3+ Kd4 Qe1 c4 Nh3 Bg7 f8R g2 f7 Nc6 b8B g1B b7 Qf6 b6 Nb4 Bc7 Qe7 b8N Ba6 b7 Be5 Nc6+ Kc5 Bb2 Nd5 Rd1 a1B Bg2 Bf4 Bf3 Nb6 Bh5 Bgh2 Rg1 Na8 Rg5+ Qe5 Re8 Qf5 f8R Bhg3 Bc1 Bb2 Rf7 Ba3 Bd8 Bb8 Re4 Bgd6 Rf4 Bdc7 Rf3 Bf4 Bb2 Nf6 Bc1 Rf8 h8N Ng8 h7 Nh6 Bc7 Qd5 Ng6 Qf5 Rf6 Rf7 Nge7 Rf8 Re6 Rf6 Ned5 Qg6 h8R Qh7 Na7 Kd4 Rf8 Kc5 Nb6+ Kb4 Nc6+ Kb3 Kf1 e2+ Kf2 Qe4 Rf7 Qh7 Bb2 Bc1 Bd8 Bb4 Ba3 Be7 Bd6 Bf8 B6c7 Bfa3 Qd2 e1N Ke2 Ng4 Qe3 Nh6 Rfg3 Nf3 Qe4 Nh4 Rf3 Ng6 Qd5 Bf8 Ree3 Ne5 Qe6 Bd6 Rff1 Bb4 Ref3 Bba3 Rfe1
1R4qr/3pK1k1/1N4R1/1R1BQ1RB/n2NpNnB/1n2r3/2rPPR1b/6rB b - - 1 2 illegal: No possible last move, all moves rejected
Nkr5/4bKn1/1BQr2RR/3Np1Qq/1P1qP2n/1B2rN1p/N5r1/2NN2B1 b - - 0 1 legal: proof: h4 d5 a4 b5 axb5 g5 g4 d4 f4 d3 h5 Qd7 fxg5 Qd4 cxd3 Qd8 d4 Bf5 d5 Bg6 hxg6 Qd6 Nf3 Qd7 Ng1 Qd8 Kf2 Kd7 Kg3 Kc8 Kh4 e5 Kh5 c5 d4 f5 b4 a5 e4 c4 b6 h6 b7+ Kc7 d6+ Kd7 g7 a4 Kg6 f4 d5 f3 Kf7 f2 g6 c3 g5 h5 Nf3 c2 Be3 c1Q Bc4 f1R Qc2 a3 Bg1 a2 Bb3 h4 Nc3 Na6 b8N+ Kc8 d7+ Kc7 d6+ Kb7 Nc6 Rd1 Ncd4 Rh7 Nde2 Qc8 d8N+ Kb8 d7 Nf6 Ne6 Rf1 d8B Qb2 Nc1 Ng4 Bdb6 Re1 Nd1 Bc5 Nc7 Rh6 g8N Re3 g7 Be7 g6 Qd4 Nf6 Qf5 g8N Nc5 g7 Ne6 Qc6 Nh2 Rb1 Qh7 Nfd5 a1R N5c3 R1a2 Nf6 Rg2 Nfd5 Rhg6 Ra1 Qh5 Ra6 h3 g8Q+ Bf8 Qg7 Be7 Qh6 Ng7 N3a2 Rd6+ Qg6 Ra7 Na8 Rb7 Bc5 Rc7 Bb6 Nf1 Rh2 Ng3 Rh1 N3f5 Rh2 Rc2 Rg2 Rc8 Rg4 Rg2 Rh4 Qg4 Rh6 Nh4 Qg5 Qh5+ Rg6 Ne6 Ra7 Ng7 Rd7 Bf8 Rd8 Be7 Rh8 Qd3 Rh7 Qd4 Rh6
qB3nB1/BqB1r3/N4N2/4Q1Q1/Q1B2Prk/1pbbrR2/1P1r3p/K2B2R1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 b4 c4 Nc6 cxd5 Nd4 Nc3 Rb8 Nb1 Nb5 axb5 Ra8 g4 Kf7 d4 e5 Kd2 a5 Kc2 h5 f4 c5 b6 a4 b7 a3 b8B e4 f6 Kg6 f7 h4 d6 a2 d5 h3 d7 e3 d6 e2 Nd2 e1Q Ne2 c4 Nc3 h2 Nd5 c3 Nf6 Rh7 Be2 Bb7 Rg1 Bc8 Nde4 Rh3 Nc5 Qg3 Be3 Qc7 d8B Ne7 d7 Qb7 Na6 Qgf3 Bea7 Bg7 f8Q Rg3 Rc1 a1R Bdc7 Ra3 Kb1 b3 d8Q Bf5+ Q1d3 Qfe4 Rcf1 Re3 Rf3 Qa4 Qc2 Bd3 Bd1 Qe8 Qd7 Ra5 Qa4 Rd5 Qg8 Rd7 Bab6 Ra7 Ka1 Rd8 Qg2 c2 Qe6 Qec6 Qe5 Qa8 Qd2 Qcb7 Qc1 Bh8 Qb1 c1R Bc5 Kg7 g6 Kh6 g7 Ng6 g8B Nf8 Bc4 Rc2 Qba2 Rg2 g5+ Kg6 Qa5 Rg4 Q2a4 Bg7 Nd7 Kh5 g6+ Kh4 Nf6 Bh8 g7 Rd7 g8B Re7 Nb4 Ra6 Q5b5 Rd6 Na6 Rd5 Qc3 Bg7 Nh5 Bf5 Bca7 Rd2 Qca5 Bc3 Nf6 Bb1 Qf5 Bc2 Qae5 Bd3 Qg5+
5b1n/pQ2R3/r3N1BP/1knqq1n1/p1n1BQBB/PNB4b/2KN1R2/6B1 b - - 0 1 illegal: Other
qbR3B1/q1pb4/1b2nr1Q/1bPN4/BkP1R2R/R3B1Nn/1NKp2NN/8 b - - 0 1 legal: proof: c4 b5 e4 a5 d4 f5 exf5 g5 h4 b4 hxg5 b3 axb3 Ra7 b4 Ra6 b5 Rc6 Rh3 Rc5 dxc5 Nf6 Rh1 Ng8 Kd2 e5 f4 Ke7 b4 d5 g4 h5 f6+ Ke6 b6 d4 b5 e4 f7 a4 g6 e3+ Kc2 a3 f5+ Ke7 f6+ Ke6 g5 e2 b7 e1B g7 h4 b6 h3 g6 h2 Be2 a2 Be3 Qe7 Qd2 Nd7 b8R Rh6 b7 Qe8 Bd1 Ne7 g8B Ke5 g7 Nd5 Ne2 Nf4 Ng3 Nh3 Nc3 Be7 Na4 Nf8 Qc1 Ne6 f8N Bd7 f7 Bh4 Nh7 Rf6 f8N Ba5 Rc8 Bb6 b8R Ba7 Nb2 Qd8 Re1 h1B Ng5 Bhc6 Ra8 Bb8 Ra3 Bb5 Rb1 Nef4 Nfe6 a1Q Re2 Nd5 Nf4 d3+ Kd2 Qf8 Ng2 Ndf4 Ba4 Ne6 Qh1 Qe8 Kd1 d2 Kc2 Qd8 N5e4 Qe8 Nc3 Qf8 Nd5 Qd8 Bh6+ Kd4 Qh2 Bg5 Rh1 Bf4 Bg5 Be5 Bf4 Ng1 Qh6 Nh3 Bg5 Rf8 Bf7 Nhf4 g8N Nh5 Rh4+ Nhf4 Rb3 Ba7 Ngf6 Qe8 Ng4 Nh3 Bg8 Rf6 Rb8 Qa2 Rb6 Qa8 Rb8 Qa1 Rc8 Bb8 Rf3 Qa2 Bb3 Q2a7 Kb1 Ng1 Ba4 Nh3 Nde3 Kc3 Nh2 Kb4 Re1 Bc3 Kc2 Ka3 Bf4 Ba5 Nd5+ Ka2 Re4 Bb6 Nc3+ Ka3 Rfe3 Kb4 Nd5+ Ka5 Rf3 Neg5 Ra3 Ne6 Ne7 Kb4 Bg5 Qd5 Be3 Qda8 Nd5+
QB1q1bR1/NR2q3/3b4/NrkpQ1R1/1n1R2B1/2R1K1b1/1RPP3p/N1nb4 b - - 0 1 legal: proof: e4 c5 a4 g5 h4 f5 hxg5 b5 exf5 a5 b4 Ra7 bxc5 b4 Nh3 Rb7 Ng1 Rb5 axb5 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 d5 f4 Kd7 g4 h5 g6 e5 g5 h4 f6 b3 f5 e4 g7 e3 c6+ Kd6 c7 a4 b6 h3 g6 a3 f7 b2 b7 h2 f6 a2 Nf3 Nd7 b8R Be7 f8Q Kc5 f7 Nh6 g8R Kd6 g7 Kc5 Bh3 Ne5 Na3 b1Q Nd4 Qb7 Qe1 Nc6 Bb2 Kb6 Nc4+ Kc5 Nb3+ Kb5 Nca5 Bb4 Be5 Bd6 Bg4 Nb4 Bg3 Be6 c8N Nf5 Na7+ Kb6 Rb1 a1B Rc8 Qbe7 Rb2 Rh6 Kf3 e2 Rc3 Nd4+ Ke3 Bf5+ Be5 Re6 Qg3 e1B Qe8 Rf6 f8R Ne2 Rg1 Bd7 Rf7 Nc1 Rh8 Bb5 g8R Be2 Rh4 Bd1 Qf4 Bg3 Qe4 Qdd7 Qa8 Qdd8 Bf4 Rg6 Qe5 Rg7 Rb1 Bb2 Na1 Ba3 Rb2 Rg6 Rcb3 Kc5 Rfh7 Qg5 Rb7 Bf8 Rd3 Rb6 Rh3 Rb5 Rd4 Be1 Rgg3 Qgf6 Rh5 Qfe7 Rgh3 Bh4 Rhg5 Bg3 Qe4 Qe6 Bb8 Qee7 Qe5 Na6 Bf5 Bh4 Rf3 Bg3 Bg4 Bb4 Rd7 Kb6 Rc7 Bd6 Rd7 Na2 Kd3 Kc5 Rb7 Nc1+ Ke3 Be1 Kf4 Nb4 Rfd3 Bh4 Ke3 Bg3 Rc3#
QbKn4/p2nb1RN/2B2P1k/7N/1pR1b3/P2BBRrb/R1n5/2RrN1B1 b - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Na6 dxe5 Qg5 hxg5 Nb8 Kd2 Kf7 Kc3 Kg7 Kb4 d5 Kb5 h5 f4 d4 e4 g3 c4 d3 g6 g2 e6 d2 e7 h4 e8N+ Kh6 f6 h3 g7 h2 e5 b6 a3 Bh3 c6 Be7 c5 Bf8 c7 Kh7 c8R Kh6 f7 Bg4 f5 Rh7 c6 Be7 f8B Bd8 e6 Nd7 Ka6 b5 Kb7 b4 e7 Be2 c7 Nb8 f6 Na6 Nc3 Kh5 Ne4 Nb8 Ng5 Rh6 Ra2 Rg6 N1f3 g1B Ne1 Kh6 Nh7 Bd3 Qf3 Bf5 Bd3 Nd7 Qd5 Bf2 Rf1 Bg3 Rf3 h1B Qe4 Rg5 Qd5 d1N Be3 Bh3 Qe4 Kh5 Bg1 Nh6 g8R Nf7 Ng7+ Kh6 e8B Rd5 Bfc5 Be7 Nh5 Ne3 Rg7 Nc2 Bce3+ Rg5 Qd5 Bf4 Qc6 Rg3 Qe4 Nf8 Bc6 Nd7 Re8 Rd8 c8R Bd6 Re5 Be7 Rc5 B1g2 Rc4 Bh1 Bef2 Bb8 Qd5 Re8 Rc7 Nd8+ Kc8 Rf8 Bb5 Re8 Qa8 Rh8 Bc6 B1g2 Rff4 Be4 Be3 Rg8 Rf7 R8g5 Rg7 Rd5 Rf3+ Rdg5 Rc5 Be6 Bdb5 Bh3 Bd5 Na1 Rc1 Nc2 Rc3 Be5 Bdc6 Bb8 Nf4 Rd5 Nh5+ Bf4 Rc5 Rd2 Bd3 Rd1 Bd4 Be5 Rc4 Bb8 Bde3+
2R3r1/rb1n1QNn/N2K4/2NR2B1/p5b1/q1QB1ppk/P3BBBP/3Bn3 b - - 0 1 legal: proof: g4 h5 gxh5 e5 e4 c5 b4 g6 bxc5 Be7 d4 Nf6 f4 Ng8 f5 Qb6 f6 Kd8 fxe7+ Kc7 dxe5 Nh6 e6 Ng8 e5 Kc6 Bh6 Qc7 Bc1 Qd8 Kd2 Kd5 Ke3+ Kc6 Ke4 b5 e8B a5 c4 f6 e7 a4 h6 b4 h7 g5 e6 f5+ Ke5 f4 Qb3 g4 Be2 g3 Bg6 d5 e8B+ Kc7 c6 d4 c5 d3 e7 d2 Na3 d1B Qf7 b3 Bgd3 b2 Nf3 b1N Ng5 Bc2 Ne4 Bb3 Rd1 Bd7 Nb5+ Kc8 c7 Bd5 Kd6 Kb7 c6+ Kb6 c8B Ra7 c7 Na3 Bb7 B5c6 c8Q Nc2 Nc7 Ne1 Na6 Nf6 Nec5 Rg8 h8B Nh7 Bd4 Bg4+ Bd7 Bcf3 Bf2 Qf8 Bd2 Bg2 Rac1 Be4 Be6 Nd7 Bb3 Bd5 Ba8 Bb7 Bde3 Qg7 e8N Qb2 Rc4 Qa3 Ng7 Kb5 Rd2 Kb6 Bbd1 Kb5 Be4 Kb6 Bh1 f3 Bg5 Kb5 Rd5 Kb6 Qce8 Kb5 Qe5 Kb6 Ke7 Kc6 Qc3 Be6 Rd3 Bf5 Nb4+ Kc7 Nb3+ Bc6 Bb7 Be6 Ba6 Bh3 Rd5 Bf5 Rf4 Be6 Bac4 Bb7 Rf6 Bh3 Nc5 Bf5 Bcd3 Bh3 Re5 Be6 Nba6+ Kc6 Re4 Kd5 Rd4+ Ke5 Rg6 Bh3 Rc6 Bf5 Rc8 Bh3 Bh4 Bf5 Rd5+ Kf4 Kd6 Kg4 Be7 Kh3 Bg5 Bg4 Bg2+
4br1N/1KR1Q2k/rR2b1q1/1p3n2/BBP1p3/N1R1Qp1n/4P2Q/QQ1rQ3 b - - 0 1 legal: proof: d4 c5 dxc5 g5 b4 a5 bxa5 Nf6 f4 Ng8 fxg5 Bh6 Nf3 Bg7 Ng1 Bf8 g4 e6 h4 Qc7 h5 Nh6 g6 Na6 g5 Ng8 h6 Bg7 hxg7 Nb8 Bb2 Qb6 Bc1 Qd8 Kf2 f5 Kf3 d5 a4 h5 c4 e5 c6 h4 c7 f4 a6 d4 Ke4 d3 a5 h3 a7 h2 a6 f3 Nh3 b6 Na3 d2 Qe1 d1R Bd2 Rh7 Bb4 Rd3 Rb1 Bg4 c8R Be6 Rc7 Bf7 Rb3 Nh6 Rc3 Qe7 g8Q+ Qf8 g7 Rd7 g6 Rd1 Ng5 Ra1 Qh8 Bg8 Nf7 Rd1 Bh3 Qd6 Bd7+ Ke7 Ba4+ Kf6 Rg1 Nd7 Rg2 Rc8 a8Q h1B a7 b5 Qb7 Nb6 a8Q Rf8 Qba7 Nd5 Qe3 Qa6 Rh2 Nf5 Rh6 Nf4 Qe8 Nd3 Kd5 e4 Qa8 Nf2+ Kc5 Qc8 Kb6 Qe8 Kb7 Nh3 Qa6+ Qe6 Qd6 Bg2 Qh2 Qd6 Ne5 Nh4 Rd3 Rc1 Qc3 Bf7 g8Q+ Rg7 Qb2 Ng5 Qgh7 Be8 Qb1 Bh3 Rb3 Kf5 Rd3 Rgg8 Qe7 Rd1 Nf7 Bg4 Qha1 Nh3 g7 Qe6 Rh7 Kg6 Rc3 Rh8 Rh5 Rh6 Rg5+ Kh7 Rg6 Qe5 Rgc6 Rhd6 Ra6 Be6 Rac6 Nf5 Ra6 Kg6 g8Q+ Qg7 Rac6 Rd8 Ra6 Ra8 Rb6 Ra6 Qhg1+ Ng5 Qh8 Qh6 Qe5 Kh7 Qe1 Nh3 Qh2 Qg6 Nh8+
B2nN1R1/3K4/1q2N1p1/prR1RP2/BB4nk/7R/1bNPpQb1/1BnrB3 b - - 0 1 illegal: No proof kernel
1bbQ3R/1QR1N1n1/2QnpK1B/3P2p1/2pr3q/B2Q1B1k/3P1QQb/4N2r b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Ke5 Kh4 f4 g5 b4 c5 b6 a5 f6 e6 h6 a4 b5 a3 h7 a2 f5 c4 b7 Qe7 f7 Qa3 f6 Ra5 b6 Bc5 f8B Qd3 f7 Ra3 Nc3 Bf2 Ne4 Qe3 Be2 Ra6 Nf3+ Kh3 Qg1 Qb3 Ng3 Qd1 Bca3 Kg4 h4 Qe1 h5 Ra7 h6 Qf1 Nf5+ Qg2 Ne7 Ra4 Ne1+ Kg3 Bf3 Na6 b8Q Nc5 b7 Ra8 Qc7 Ne4 b8Q Ba7 Qbb7 Ngf6 Qcc6 Nd6 Bg7 Nfe8 f8Q Bb8 Qf7 Rg8 h8Q Rf8 h7 Ra7 Qg6 Rf4 Bh6 Ng7 Qd8 Rd4 h8Q Ra5 Rb1 a1B Kf6 Rb5 Qe4 Bc3 Ra1 Rb1 Qd3 Ba5 Qhf8 Bac7 Bb2 Rd1 Ra7 Rb1 Ba3 Ra1 Qgf1 Qh2 Qg1+ Kh3 Ng2 Ba5 Qba6 Rg4 Kg6 Bb6 Qge3 Nge8 Qg7 Bc5 Qgd4 Ng7 Rc7 Kg3 Kf6 Qh3 Qab7 Rf1 Ne1 Re4 Rh2 Rh1 Qee2 Qg4 Rh5 Qh4 Q4e3 Kh3 Qg1 Be3 Qef2 Ngf5 Bf8 Bf4 Bg7 Bh2 Rh8 Rd4 Bh6 Ng7 Qgg2#
2QR4/R6n/kN2pnbN/2pBK1B1/bb3NN1/Q5PP/1r2Np2/1RNr1q2 b - - 0 1 illegal: No proof kernel
4B3/n1r5/rpR1n3/P3B3/Q1Q1Kbb1/B1BpPRp1/kq2N2n/2BR2NB b - - 0 1 illegal: No proof kernel
3Qr1Nk/4pR1B/qNR1n1nK/1P1rBB1P/bR1p1N2/1NN2pb1/5n2/5B2 b - - 0 1 illegal: No proof kernel
R4BRR/KRRP1rb1/pnP1k3/Qb1pN3/6qB/2nB1n1N/1r5p/2B3N1 b - - 0 1 illegal: No proof kernel
N1b4R/n1Bp4/b4r2/R3NB1k/N1rPpQN1/K1P1n3/Rp1qnBB1/1B6 b - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 f5 exf5 b5 b4 Bg7 a3 Bc3 bxc5 b4 Bb5 b3 Bf1 Bb4 axb4 Ba6 Nc3 Bb7 Nb1 Bc8 d4 Kf7 Kd2 a5 Kc3 h5 Kb2 e5 f4 a4 g4 e4 b5 h4 g6+ Kf6 g7 h3 g5+ Kf7 f6 Kg6 f7 h2 f8N+ Kf5 g6 Nc6 b6 Qc7 b7 Qe5 b8B Qd6 Be3 Rh6 Qg4+ Kf6 f5 Rh7 Qf4 Ra6 Nf3 Nd8 c6 Ra8 c7 Rh4 Ra2 Qc5 Bf2 Rh7 Nc3 Qb5 Ka3 b2 Ne5 Nc6 Bg2 Qd3 Rha1 Nh6 g8B h1B g7 Qd2 Be6 Na7 g8B Rf7 Nfg6 Ng4 Bh7 Ne3 Ng4+ Kg7 N6e5 Rf6 Bc4 Rd6 Bd3 Rf6 Bgf1 Bf3 Bg2 Be2 Bg6 Bb7 c8N Ba6 Nb6 Bc8 Bc7 Bf1 Kb4 a3 Ka4 Rb8 Na8 Rbb6 Bh7 Rbc6 Kb3 Rc5 Na4 Rc4 c3 Be2 Rh1 Bf1 Bb1 Be2 Rh5 Bf1 Ra1 a2 Ka3 Bd3 Nh2 Be2 Rg5+ Kh6 Bg6 Rd6 f6 Rdc6 f7 Rf6 Bf5 Bf1 Rg7+ Kh5 f8R Bd3 Re7 Bf1 Re6 Be2 Nhg4 Bf1 Bd3 Be2 Ra6 Bf1 Rb1 a1N Ra5 Nb3 Ra1 Nc1 Bb1 Ne2 Rh8+ Rh6 Rd8 Ng3 Nf3 Rb4 Rd5 Rf6 Ra2 Bfa6 Nfe5 Ne2 Ra5 Rc4 Rh8+
k2qN3/1Pb3BN/1RQ4r/1B5b/B1KNpR1R/b2p1B2/1p2P3/Nn1r2nN b - - 0 1 illegal: No possible last move, all moves rejected
B3r3/1p1RP1BR/3qpn1p/n2b1N2/Bk2B1P1/N1b3BK/1R1R4/1rNQ3n b - - 0 1 illegal: No proof kernel
R1nrN3/pN3N1p/1k2PN2/R5Np/4B2b/4nqB1/1RR3bP/2KQ1nBr b - - 0 1 illegal: Other
b3B3/2RR1Rn1/q1q1N1K1/1k2B1Pr/2pQp2N/2P1pN2/2N2NQb/2n2Nr1 b - - 0 1 illegal: Other
N7/B3RqpR/R1QN3q/3RR1Pp/KN1r3p/1n2Pn2/BB4Nb/1kr3b1 b - - 0 1 illegal: Other
1B2qn1B/B2N1Bp1/Rp1P1Q1N/2kb1RK1/1nP5/2r5/rRBp2Q1/bq2B3 b - - 0 1 illegal: No proof kernel
B2qrNr1/2p2n2/R1bpRRq1/B2QRR2/1BRP4/1Qn5/pKPN2k1/7b b - - 0 1 legal: proof: e4 f5 exf5 b5 g4 g5 fxg6 b4 h4 b3 f4 e6 g5 Ba6 h5 Qe7 h6 Bd3 f5 Bg7 hxg7 Ba6 axb3 Qf6 b4 Bc8 b5 Qd8 b4 Ke7 f6+ Kd6 b6 Kd5 f7 Ke4 f8B a5 b5 h5 b7 h4 b6 h3 Bb4 h2 Bg2+ Kf4 Ne2+ Kg4 Rf1 h1B Rf6 e5 Nd4+ Kg3 Ne6 a4 Nf8 Ne7 g8Q a3 g7 e4 g6 e3 Qb3 d6 g8R Ra4 g7 Nbc6 b8R Na5 Ba8 Nc4 b7 Rh3 d4 Nb6 Qf3+ Kh2 Kd1 Nc6 Qfd5 Rh8 Bcd2 e2+ Kc1 Ne5 Be1 Bg4 Nd2 Bd7 Rc8 Ra5 b8R Na4 Rb6 Kg1 Rc6 Nc3 Rc4 Bc6 Rb8 Rc5 Rb5 Nf7 Ra5 Rb5 Ra6 a2 Kb2 Rb8 Rc1 Rh7 Rh8 Rh6 g8R+ Rg6 Rh5 Rc8 Rgh8 Rg8 Rhf5 Rb8 Rhh5 Rc8 Bh4+ e1Q Rd1 Qf1 Be1 Qd3 Re5 Qh7 Rhf5 Qg6 Ba5 Ne2 Ree6 Qe7 Ne4 Kg2 Beb4 Nc3 Re1 Re8 Re3 Qd8 Nd2+ Kg1 R3e4 Kg2 R4e5+
1RNBNRb1/PN5p/bp1q4/N1r2R1P/1Q1B2nq/nR1r2k1/pRB5/4K3 b - - 0 1 illegal: No proof kernel
K1RBr3/p2pPB1B/R2N2bB/1RQP4/4q2N/pnBq1b1k/4n3/1Q2B1r1 b - - 0 1 illegal: Other
1b1B2N1/p1RbnbRN/K1Q1n1N1/Pr1n1Bq1/8/2pPp3/2NN4/Q2N1Bk1 b - - 0 1 legal: proof: f4 d5 c4 g5 fxg5 b5 cxb5 d4 h4 d3 g6 Kd7 exd3 Ba6 d4 Ke8 d5 Bc8 g4 Bg7 g5 Na6 h5 Bf8 g7 Rb8 Bh3 Rb6 Bf1 Rg6 hxg6 Bg4 Qe2 Bf5 Qd1 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 b4 Kf4 a4 Kg3 d3 Kf2 a5 c5 b6 f5 Kb5 e5 d6 h5 b7 f4 b8N h4 d7 e4 Nc6 h3 Nc3 h2 Nf3 c4 Ne7 Rh5 Rg1 h1B Nd2 Nf6 g8B f3 g7 Rh8 g6 Rh6 Be6 Qc7 d8Q Ne8 g8N Rh2 g7 Nc5 Ng6 Rh6 Qd6 Nf6 Bf5 Bd7+ Qc6 Nd5 Nf6 Bd6 g8N Ne7 Nh7 Ne6 Ka6 Qd8 b5 Rh5 b6 Bb8 b7 Rg5 Rg3 Bg2 Ra2 Kg1 Rc2 f2 Bb2 Rh5 Qa1 Rg5 Nd1 Rh5 Be2 f1N Bf6 Ne3 Bf1 N3d5 Bh4 e3 Rg4 Bg3 b8N Bf3 Qb5 Bg2 Nc6 Bb8 Nb4 Rg5 Qc6 c3 Rb2 Rh5 Nc2 Rg5 Rc4 Bf3 Rb7 Bh5 Nf4 Bf7 Ng6 Qc7 Rg4+ Qg3 Rc7 Rh5 Ngf8 Qg2 Rg7 Qg4 Ng6 Qg5 Be1 Rh4 Bg3 Rb4 Be5 Rb5 Bf6 Nc8 Bd8 Nce7 Qc5 Rb4 Qb6 Rb5 Qc6
3r1Qb1/N2BBB2/2Bk2nB/p1qpb1q1/1R1Rp2B/3RPn2/1Q2P3/3qN2K b - - 0 1 illegal: No possible last move, all moves rejected
B2b1N1k/2Np3n/R1bPp3/3pRN2/4RNq1/6Rq/nBKPB2r/3R1Qn1 b - - 0 2 illegal: Other
R1r1k3/2nn1p1q/2pRr1RN/Bb1B1RRN/Qp5K/1P2P2N/2r5/1NB4q b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Ne7 fxe5 Ng8 a4 Bc5 a5 Bb6 axb6 Qd6 Nf3 Qe7 Ng1 Qd8 Kf2 g5 Kg3 a5 h4 g4 d4 b4 e6 c6 d6 a4 b7 a3 h6 a2 d7+ Ke7 h5 Na6 b8N Nc5 d5 Bb7 e3 Ne4+ Kh4 g3 d6+ Kf6 h7 g2 e7 Qe8 d8R Qd7 e8N+ Ke6 h6 Ngf6 Ng7+ Ke5 Nf5 Ke6 Bc4+ Nd5 Qa4 Nf2 b3 Ne4 Nh3 Ra7 Rf1 Rg8 h8R g1R h7 Nf6 Nh6 Ba6 Rf5 Bb5 Rg5 Qc7 d7 Ke7 Rg6 Re8 Rhg8 Rg2 h8R Ra8 Rg5 Qc8 R8g6 Nc7 Bd5 Rc2 Rf5 Qa6 Rhg8 Qc8 Rgg5 Qa6 R8g6 Qa5 Na6 Rc8 Nc5 Kf8 Nd3 Qa8 Ndf4 Qa6 Nd2 Ke7 Rb1 a1Q Rb2 Qb1 Ra2 Qa7 Ra3 Qd4 Ra1 Qe4 Ra3 Qh1 Nh5 Kd6 Ra2 Re6 Ra3 Ke7 Ra1 Rc5 Ra2 Qc2 Nb1 Qch2 Rd2 Rc3 Rh8 Rc2 d8B+ Kd7 Ng8 Ke8 Rd3 Na6 Ba5 Nd7 Rd2 Nc7 Rd1 Qe5 Rd2 Qg7 Nh6+ Ke7 Rd8 Qh7 Rd1 Nf8 Rd6 Ke8 Rd2 Nd7 Re2 Rc5 Ra2 Rc2 Bb6 Bd3 Qb5 Re2 Ra8 Rc2 Qa4 Bb5 Ba5
Bb2kB1B/3Np1R1/p1r5/P6b/1p2r3/q2B2nq/Q1NBPK2/1qNRQB2 b - - 1 2 legal: proof: c4 g5 f4 c5 fxg5 d5 cxd5 c4 b4 c3 h4 c2 g4 Bg7 h5 Be6 g6 Na6 g5 Nc5 bxc5 Bf8 h6 Bc8 Bb2 c1Q Ba3 Qc3 Bc1 Qg7 hxg7 Bg4 Bb2 Be6 Bc1 Bc8 d4 h5 a4 b5 d6 f5 d5 a6 c6 f4 c7 h4 Na3 f3 Kf2 h3 Nc2 h2 Nh3 Kd7 Rg1 h1Q Qe1 Rb8 Nf4 Qh3 Nd3 Nh6 g8N Nf5 g7 Ne3 g6 Bb7 c8B+ Ke8 Bf5 Qd7 Nf6+ Kd8 g8Q Rh4 g7 Qe8 d7 Nc4 Bh6 Na5 Rd1 Rc8 Nc1 Rc6 Bd3 Re4 Qf7 Nc4 g8B Ba8 Rg7 Ne3 a5 b4 Bh7 Rec4 Bhe4 Nf5 Qg8 Ng3 Qf7 Kc7 d8B+ Kc8 d6 Rd4 Nh7 Kd7 Bc7 Bb7 Bd5 Re4 Bb6 Qd8 Bd4 Qa8 Qe6+ Ke8 Bc3 Bc8 Bcd2 Bd7 Qg8 Bg4 Qe6 Bh5 Nf6+ Kd8 Nd7 Ke8 Qg8 Qb8 Qe6 Qb5 Qg8 Qa4 Qe6 Qa3 Qg8 Rc7 Ba8 Rc8 Qa2 Rc6 Rg4 Bg7 Rg6 Bh8 Bf8 Ba1 Rg7 Bc3 Nb6 Be5 d7+ Kd8 Nc8 Bb8 Nb6 Kc7 d8B+ Kd6 Nd5 Kd7 Bb6 Ke8 Bd4 Rg4 Ke3 f2 Nb6 Rh4 Nd7 Rf4 Bg2 f1Q Ba1 Qfh1 Bf1 Re4+ Kf2 Qe6 Rf7 Qeb3 Bac3 Qb1 Bh8 Qh3 Rg7
3R4/B1q1N3/p2r1n1N/RR3pK1/3q4/pNP1BP1R/1RbN3b/nn1k2QB b - - 0 1 illegal: Other
3B1Bb1/r1qp1bBr/1R2qP1R/1pQ1p3/n2B4/1RNPN1R1/5k2/b1K2BN1 b - - 0 1 illegal: No proof kernel
B4kqB/Q1p1np2/7q/1P2pBb1/B3K2N/B1PQB3/3Rbr2/RbNNn3 b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 exd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Bd7 g7 Ra6 g5 Rg6 hxg6 Bc8 Ke2 e5 Kd3 h5 b4 h4 d6 h3 d7+ Ke7 b6 a4 b5 h2 b7 a3 Bg2 a2 Ke4 Rh3 d4 Na6 b8Q Ra3 d5 Rg3 d6+ Ke6 Ba3 Rh3 Nc3 Rf3 Qa7 Rf1 Nge2 Nh6 g8N Nb4 g7 Nc6 g6 Qe8 d8B Bd7 Bg5 Qe7 Qd3 Nb8 Be3 Nf5 Nd1 Nd4 c3 Qd8 Ne7 Nbc6 g8B Bh6 g7 Nf3 Bh7 Ne1 g8B Bg5 Ng6 Ne7 Nc1 Rf2 Nh4 Kf6 Bf5 Kg7 Rg1 h1B Bgh7 Qg8 Bhg6 Bc8 d7 Kf8 d8B Be6 Bh7 Bc4 Bf3 Bg2 Rh1 Bf1 Rh2 Bb3 Bh1 Bc2 Bhg6 Bb1 Bh5 Rf3 Rd2 Rf2 Bhg6 Be2 Bf3 Ke8 Bh7 Nd5 Bf6 Ne7 Bh8 Kf8 Bh1 Bc2 Rb1 a1Q Bhg6 Qb2 Ra1 Bb1 Bh5 Qb3 Nb2 Bf1 Bd1 Qe6 Ba4 Qh6 Nd1 Be2 Bf3 Ke8 Bg2 Nc8 Kd5 Ne7+ Kc5 Bf1 Ba8 Be2 Kc4 Kf8 Kc5 Nc8 Kd5+ Ne7+ Ke4
BN2QR2/pB4K1/1B1BBP2/3q1Q2/6bp/qNb5/P1nprRkN/2Bbn3 b - - 0 1 illegal: No proof kernel
4Q3/1B1pRB1k/4Nr2/bR1PN2b/b2NNnpK/p4rB1/1rR4P/3Rn2N b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 gxh5 Rh7 a4 Rh6 axb5 Rh8 c4 Qg5 b4 Qf6 c5 Qd8 b6 Na6 b5 Qf6 b7 Qb6 cxb6 Nb8 Kf2 g5 Kg3 c5 d4 f5 e4 Kf7 e6+ Kg7 h6+ Kg6 h7 a5 d5 c4 e7 a4 e8R c3 e5 g4 e6 f4+ Kh4 f3 e7 f2 Nh3 c2 Qe1 a3 Bf4 c1R Nc3 Bg7 Ne4 Nc6 b8N Bh6 b7 Nf6 b6 Ne5 Ra2 Nd3 Na6 Nb2 b8R Rc3 b7 Rc6 Nac5 Nd3 Bg3 Bd2 Ne6 Nh5 Rc2 Rf8 h8N+ Kh7 Nf7 Nhf4 Ne5 Ba5 Be2 f1B Nhf2 Ra7 Rg1 Rc3 Nh1 Bg2 Bf1 Rf6 Qe3 Ne1 Ba6 Ned3 Rd1 Ne1 Ra8 Bf3 b8N Rb7 Nbc6 Rb2 Rb8 Bb7 Ncd4 Bc6 Rb5 Be2 Bb7 Bd3 Rb8 Rcb3 e8B Rc3 Bf7 Rcb3 Nd2 Bg6 Ne4 Bh5 Re8 Rd3 Qe2 Rc3 Re7 Rf3 Rb4 Ba4 Rb5 Bd2 Qc4 Bb4 Qc8 Ba5 Qe8
1N6/P1n1bB2/1Bn5/QpBp1QNK/1Rn1B1r1/B2Pk3/1Qp5/Bbr1bR2 b - - 0 1 illegal: No possible last move, all moves rejected
1qQ3RR/2Rrn3/k4p2/1p1P1Pn1/2R3nn/1p1Rr2B/N2K1N2/2BN1RQb b - - 0 1 illegal: Other
1N2kBNq/1NpnB2b/2r2R2/BR1N1b2/7b/1K2p3/NPnpPRb1/5Q1B b - - 0 1 illegal: No proof kernel
rR1n3N/1k2Kp2/RB2pp1P/2R2B1R/3r1P1Q/5rqB/Q2N1n2/2R1b1rR b - - 0 1 illegal: Other
1k1n4/1R2b1bN/BRbN3B/1p2r1NR/p2B3Q/1P4R1/BKpq1BP1/3b1n2 b - - 0 1 illegal: No possible last move, all moves rejected
1b3k2/pR1n1B2/Pq1N2bB/4B2p/nB3r1b/2BQ1R1N/1Qp2bKP/Q1B5 b - - 0 2 legal: proof: e4 d5 exd5 f5 c4 b5 cxb5 f4 b6 f3 b7 Nc6 bxa8Q Bg4 gxf3 Bf5 f4 Bc8 f5 Nb8 a4 e5 f4 c5 Kf2 h5 d4 g5 b4 c4 d6 g4 d5 e4 a5 e3+ Kg2 g3 f6 c3 f5 c2 b5 e2 d7+ Kf7 a6 e1B d6 Nh6 b6 Kg8 b7 Bd2 f7+ Kg7 f6+ Kg6 Nh3 Bg5 Nc3 Bf4 Nb5 Nf5 Ra3 Ng7 Bc4 Kh7 Rf3 Qe8 d8B Bg5 d7 Kg6 Nd6 Bh4 Bc7 Be7 d8B Nd7 f8B Ne6 b8Q Nec5 f7 Na4 Bg7 Rf8 Qb2 Bef6 Ba5 Qe3 Qad5 Qb6 Bc3 Be5 Bdg5 Bb7 Q5d3+ Be4 Be6 Kh7 Re1 Bg6 Ba2 Bf4 Re8 Be5 Rb8 Bf4 Bgd4 Be5 Rb7 Kg7 Kg1 g2 Bb3 Re8 Bc4 Re6 f8B+ Kg8 Bfe7 Kg7 Qe1 Rf6 Bf7 Beg3 Qe5 Bf4 Qa1 Bfg3 Qeb5 Be5 Qbb2 Rf4 Bef6+ Kf8 Bc5 Rd4 B5b4 Bf4 Rg3 Be5 Kf2 g1B+ Kg2 Bf2 Rf3 Rf4 Bh8 Bf6 Be5 Bd8 Bec3 Bc7 Bhe5 Bb8 Bh6+
1n1bRRq1/1p1p1N2/1nRB2N1/1RR2QrR/1P1Qp3/r1n2P1K/1k6/1n2BB2 b - - 0 1 illegal: No proof kernel forced: wxLB
1n1N4/Nn4R1/rnp1pN2/Q4NKR/b7/1n1Nr1Q1/1qPpP1R1/BB1N3k b - - 1 2 legal: proof: f4 b5 a4 g5 axb5 h5 fxg5 h4 d4 h3 d5 c6 d6 Bg7 gxh3 Be5 h4 Bf6 h5 Bd4 Na3 Bb6 Nb1 Bc7 dxc7 Rh6 Nd2 Rh7 Nb1 Rh8 Kd2 d5 Ke3 Kd7 Kf4 Ke6 b4 f5 h4 a5 h6 a4 h5 d4 g6 Kd5 h7 a3 g7 a2 b6 e6 b5 d3 h6 d2 b7 Qe8 b6 Ra3 Nf3 Ne7 g8R Na6 b8N Qg6 b7 Qg1 Rg7 Qg2 Nc3+ Kc5 Rh5 Qf2 Nd7+ Kd6 b8Q Qb6 Nh4 Qb2 Kg5 f4 Bg2 f3 Nf6 Ke5 Nf5 f2 Bd5 f1N Qb6 Rd8 h8N Ng3 h7 Nb8 Qa5 Ba6 c8N Bb5 Qg1 Ba4 Na7 Nc8 Nd1 Re3 Rb1 a1N Ba2+ Rd5 Qf2 Nb3 Qg2 Qc3 Bb2 Nb6 Ba1 Qb2 Rc1 Rc5 Bb1 Rd5 Ne7 Nf5 Nhg6+ Kd4 h8N Nd6+ Ne5 Nb7 Nf7 Rc5 Qg3 Rb5 Qa6 Ra5 Qb5 Ra6 Nd8 N7c5 Qa5 Nb7 Nc3 Rf3 Rg1 Ke3 Qh3 Kf2 Nf5 Rd3 Rg2+ Kf1 Nd1 Re3 Rh2+ Kg1 Nd3 Nc8 Qh4 Nb6 Qf4 Rh3 Rg2+ Kh1 Nh4 Rf3 Qg3 Re3 Nf5#
N1K1nb2/3p2rN/4nNP1/2BQ2p1/N4R1n/4B1r1/B1Rp1NP1/2kb1RRn b - - 0 1 illegal: Other
1n1RB1R1/p4K2/1k6/2BPpNB1/1N1N4/Pb3Nrp/1Rqnp2R/2bR2rQ b - - 0 1 illegal: Other
1Kn1NRN1/1R1qBN1p/1pBN1p2/r4b2/2p1NP2/2R1Q3/R3r2P/2q1nk1B b - - 1 2 legal: proof: f4 a5 b4 d5 bxa5 e5 fxe5 d4 g3 d3 cxd3 Bd6 d4 Bc5 d5 Ba7 Bg2 Be3 Bf1 Bf4 gxf4 Qd6 Bg2 Qe7 Bf1 Qd8 Kf2 Kd7 Kf3 c5 Ke4 g5 a4 c4 d4 b6 d6 Ke6 d5+ Kd7 a6 g4 e6+ Ke8 Ke5 g3 e4 g2 a5 Qc7 e7 Kd7 e8N Bb7 a7 Nh6 a6 Bc6 Qf3 Qb7 Nd2 Ba4 Ba3 Bb5 Nh3 g1Q Ng5 Qc7 Ra2 Qg2 Nf6+ Kd8 Qe3 Bc6 Ng8 Qh3 Bg2 Kd7 Rc1 Bb7 Bh1 Qh4 Rc3 Qc8 Bb4 Kd8 d7 Kc7 d8R Nf5 d6+ Kc6 d7 Nd4 Be7 Nc2 Rf8 Ne1 d8N+ Kb5 Kd6 f6 e5 Be4 e6 Bf5 Ngf7 Kb4 Nb7 Nc6 Ne4 Qg5 Bd8 Qg1 e7 Qf1 e8N Ne7 Bg2 Qe6+ Kc7 Nc8 Nbd6 Qh1 Be7 Qg1 Qd4 Qe3 Qd3 Qc1 Bh1 Qd5 Qe3 Qd3 Ngh6 Rg8 Kb7 Rg2 Ng8 Re2 Kc7 Rb8 a8R Qdd1 Ra7 Ra8 Qd3 Qa4 Rb7 Ra7 Nd2 Qd7+ Kb8 Kc5 Qf3 Kd4 N2e4 Qb5 Rcc2 Qd7 Qf2+ Kd3 Qc5 Rd2 Rc3+ Ke2 Qe3+ Kf1 Nb5 Qd5 Nbd6 Re2 Rd7 Rc7 a7 Rc5 a8B Ra5 Bc6 Qe6 Rc7 Qd7 Rb7
4b3/2R2p1p/NpQ4N/QK2N1nq/1NB1pPrB/2PRNB2/5q2/n2N2kr b - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 d5 dxc5 a5 b4 d4 bxa5 d3 e3 Bg7 Be2 Qc7 Bf1 Bd4 exd4 Qd8 Kd2 Kd7 Kc3 Kc6 Kc4 e5 g4 b6 a4 d2 d5+ Kc7 g6 Qg5 a6 Nf6 d6+ Kc6 a7 Re8 a5 Rg8 a6 Qh4 g7 Nbd7 Rh3 Qg3 g5 Nh5 g6 Qe3 Qe1 d1Q Nc3 Qee2+ Rd3 Nhf6 Bg5 Rh8 g8N Nb8 f4 Qh5 g7 Qhf3 d7 Qc1 d8N+ Kc7 c6 Qb2 Nh6 Qb1 g8N Bd7 Ne7 Qfd1 Ned5+ Kd6 c7 Bc6 c8Q Be8 Nf3 Qb2 Nc6 Ne4 Ncb4 Nd7 Bh4 Ng5 Rc1 Rg8 Kb5 Qe2 Nd1 Nc5+ Kc4 Nb3 N5e3+ Ke7 Qd7+ Kf6 Kb5 Na1 Qc3 Kg6 Qdc6+ Kh5 Qc5 Rc8 a8N Qa2 a7 e4 Bg2 Qd5 Nc7 Qf2 a8B Rd8 Nca6 Rd6 Nhf5 Rh6 Bb7 Qe5 Bc8 Rgg6 Be6 Rg7 Bc4 Rgg6 Ned5 Kg4 Bh1 Kh3 Nd5e3 Qd5 Ne5 Kh2 Bf3 Rh5 Nh6 Kg1 Bg3 Rh1 Bh4 Qd4 Ka4 Qd7 Qa5 Qg4 Kb5 Qh5 c3 Nc2 Ra1 Rg8 Ra4 Na1 Ra2 Ne6 Rad2 Rg4 Rd7 Ng5 R2d3 Nh3 Ra7 Ng5 Rc7
Q6q/2p1Npnr/R2N3n/BP2BNB1/2R2Ppq/3r4/3RpbB1/K3k1RR b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 Kd7 d4 Na6 d6 Ke6 d7 Kd6 Be2 Nb8 Bd3 Ke6 Bf1 Kd6 d5 Ke5 d6 Kf6 Bh6 Bb7 Bc1 Bd5 exd5 Qe8 Na3 Qc8 Nb1 Qd8 Kd2 Ke5 Kc3 Ke4 f4 e5 b4 g5 Kb2 a5 h4 a4 h6 g4 h7 Ne7 h5 Ng8 h6 Bg7 b6 Na6 b7 Ra7 b8R Qh4 d8N Ra8 d7 Ne7 d6 Bf6 Ne2 Kf3 Rg1 Kf2 Bd2 e4+ Nd4 e3 Nb7 e2 d8B Qh2 d7 Nf5 Nd6 Be5 Bg5 Rd8 h8R Qh3 h7 Re8 d8R Qg3 Nc3 Qh4 Nd5 Nh6 Ne7 Nc5 b5 Ne6 Ba5 Bg7 Rc1 a3+ Ka1 a2 Qa4 Rf8 Rd7 Rd8 Rb6 Bf8 Rbc6 Ng7 Ra6 Rac8 Rc3 Ke1 N4f5 Rb8 Qe4 Rb6 Qa8 Rc6 Ne8 Rb6 Rd2 Rd3 Rc4 Rc6 Nc8 Bc5 Nce7 Re6 Ned6 Bf2 Rd8 Ree3 h8B Rh3 Rc8 Nh5 Be5 Ng7 Rh8 Rh1 Kb2 a1Q+ Kc2 Qd4 Kb1 Qb6 Kb2 Qb8 Ka1 Qf8 Rh7 Qh8 Kb1 Ng8 Rb6 Qg3 Ka1 Rh5 Ra6 Qh3 Rh6 Qh2 Rg6 Rh7 Rh6 Qh1 Rh4 Nh6 Rh5 Qh2 Rh3 Qg3 Rhh1 Qh4 Bg2+
NB1QR3/k3r3/ppBN1NBr/P2b2pq/1PnK2p1/3RrB2/5qR1/3BN3 b - - 0 1 illegal: Other
b4RQQ/4pnBB/1RN1P3/3RQ3/1p1NrR2/q1p1b3/1kP2p1p/rR1KR3 b - - 1 2 legal: proof: f4 d5 e4 g5 exd5 a5 b4 g4 bxa5 g3 hxg3 Nc6 g4 Kd7 g5 Ne5 fxe5 Ke8 a4 Kd7 g4 b5 d4 c5 e6+ Kd6 g6 h5 a6 f5 g7 b4 a7 h4 a5 h3 g5 h2 a6 f4 g6 f3 Bd3 c4 Nd2 c3 Ne2 Rh5 Nc4+ Kc7 d6+ Kc6 d7 Kb5 d5 Rh3 d6 Rh4 Bh6 Rd4 Ne5+ Kc5 Nc6 Rh4 Rc1 Bb7 Ned4 Re4+ Qe2 f2+ Kd1 Qc7 d8R Rb8 a8R Qa5 d7 Qb6 a7 Qa5 Re1 Rg4 Qe5+ Kb6 Be4 Nf6 g8R Nh7 g7 Ng5 Bh7 Re4 Re8 Qa1 d8R Qa3 Rd5 Nf7 Rh8 Rd8 g8Q Rd7 Rad8 Ba8 Bg7 Rb7 R8d6 Ka6 Bf6 Bh6 Rf8 Be3 Bg7 Rb8 Bg6 Rb5 Rh4 Ra5 Rf4 Kb6 Bh7 Ra4 Nb5 Ka6 Ncd4+ Ka5 Rb6 Qb2 Qh8 Ra1 Nc6+ Ka4 Nbd4 Ka3 Qg8 Qa2 Qh8 Kb2 Qg8 Bb7 a8Q Qb3 Qe8 Ba8 Qh8 Nd6 Qf7 Qa3 Qfg8 Nf7 Rb1+
1BR1b1Nn/6p1/1B4k1/rQ1B4/1KB4N/RB1N2Pp/2rr1R1P/bq2Rbqn b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 e4 h5 b4 c5 d4 f5 Kd2 Kf7 Kc3 a5 d6 f4 b6 c4 b7 f3 e6+ Kf6 e7 a4 e8B f2 b5 a3 b6 h4 g3 h3 d7 a2 d5 Qe7 d8N Qa3+ Qb3 Rh7 d6 Qa4 e5+ Kf5 d7 Ra7 e6 Na6 b8R Nh6 b7 Ng4 e7 Rh8 Na3 Nh6 Bf7 Qb5 e8B Be7 Nc2 Nb4 Be3 Nd3 Ne1 Ra5 Bd5 Nf7 Ngf3 Kg6 Nc6 Bf6+ Bd4 Rg8 d8R Bd7 Rbc8 Qb6 Be2 f1B b8B Nf2 Nd3 Qa7 Re1 a1Q+ Kb4 c3 Bb6 c2 Qb2 c1R Nh4+ Kh7 Bb3 Qb1 Ne7 Nh8 Bef7 Rc2 Rf8 Be8 Bfd5 Bd4 Rg1 Nh1 Rf2 Rf8 Rgg2 Rf7 Ng8 Rd7 Rf3 Rd8 Rgf2 Be5 Qa3 Ba1 Qa4 Rd6 Qb5 Rd7 Bd8 Qe3 Bb6 Rd6 Rg2 Qg1 Rgf2 Rd8 Nf4 Rd7 Bec4 Rd8 Nd3 Rd7 Nf5 Kg6 Nh4+ Kh5 Ne5 Re7 Rc3 Re6 Nd3 Re4 Qd7 Ree2 Qb5 Bb2 Ba4 Red2 Ra3 Ba1+ Bab3 Kg5 Nf5 Kg6 Nh4+
3qr3/B1B1pQ1B/1rp4K/r1nb2Q1/BB4N1/1BR1P1b1/nRPr2kQ/N5r1 b - - 0 1 illegal: No proof kernel
RBqQQ2n/NB1pr3/1RB5/1p1Pk3/R1r2n2/RPr5/n1RbnR1K/5N1b b - - 0 1 illegal: No possible last move, all moves rejected
Q2RN3/rRN1n3/1n4Np/RBB1b2R/3R2pN/1K2B3/n5PP/rk2nqrb b - - 0 1 illegal: Other
1KBn1kbn/1N4Nb/1pR2pr1/3qNb1N/1P3PQ1/8/1rQ1RB1N/1NbQ3q b - - 0 1 illegal: No proof kernel
4NbnR/1q2p3/3N1nqN/R1r1BpBn/1BQ1R3/3BPP1n/b3K3/kB2R1r1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 g4 Kd7 d4 Kd6 b4 c5 g6 a5 g7 h5 b6 f5 f3 a4 b5 a3 b7 c4 b6 a2 g5 c3 g6 c2 Qd3 h4 Nd2 h3 Ne4+ Kd7 d6 Ke6 d7 Kd5 Nf6+ Ke6 d5+ Ke5 d6 h2 Qc4 Rh5 Nh3 Qc7 d8R Rh8 d7 Ra4 Ng5 Nh6 g8N Ra5 g7 Rc5 Nge4 Qc6 Ba3 c1N Ne8 Qg6 N4d6 Nd3+ Kd1 Rh7 Bb4 Nf4 e3 Nh3 Rg1 h1N Bd3 Ng3 Re1 Nh5 Ke2 Rh8 Ngf6 Rh7 g8B Rg7 Bd5 Ng8 B5e4 Qh6 Bb1 Rg1 Bec2 Qg6 Bd3 Na6 b8R Nc7 b7 Nd5 Ng4+ Ke6 Nh6 Ke5 Ra8 Ndf6 b8B Bb7 Qc2 Kd5 Ra5 Ba6 Rc8 Bc4 d8B Bb3 Bdc7 Bc4 Qa4 Bb3 Bbc2 Bc4 Rad1 a1Q Bb1 Ba2 Rc1 Qe5 Rc4 Qe6 Re4 Qd7 Ndf7 Qb5 Bf4 Qc6 Bg5 Qb7 Re6 Qa7 Be5 Qb7 Bdc2 Kc4 Qc6 Nf2 Bd3+ Kb3 Nfd6 Nh3 Qc7 Rc3 Qc4+ Kb2 Bh2 Ka1 Re4 Rc1 Be5+ Rc3 Nc7 Bg7 Bh2 Rc1 Qf7 Rc6 Qc4 Rc5 Ng4 Nh6 Rh8 Bf8 Nce8 Nhg8 Nh6 Qf7 Bg3 Qg6 Be5+
3rNn1N/1Q2b1Q1/5rrq/B2Bp3/p1k1P2N/Pb4pN/1Rbn4/1RNRK2N b - - 0 1 illegal: No proof kernel
2b1rBRk/3N2nN/1bb3B1/2Np4/1rRR1BQR/1p1PBnp1/6P1/1q1q2RK b - - 0 1 illegal: No possible last move, all moves rejected
2BR4/R1b2B1N/ppQ1R2B/BP6/K6Q/P1qrk2b/n1B3pr/nBqb3N b - - 0 1 illegal: No possible last move
2B3rN/2R1N2p/2B1npN1/R2npq2/qRQB1P1P/2R5/b1k3r1/bn2KN1N b - - 0 1 illegal: No possible last move, all moves rejected
1KN1bB2/2Nr4/1kpN1n1Q/1p2p1br/3NRN2/1PPRN3/n1B3B1/q2Qr1q1 b - - 0 1 illegal: No proof kernel
1Q1R1BNR/Rbr1p1Rr/q1p5/B1nN1p1N/1qN5/2N1PPnB/1b5q/3K2k1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 b4 Kd7 h4 Kd6 d4 f5 f3 a5 b6 g5 h6 a4 b7 g4 h7 g3 h5 c6 b5 g2 h6 a3 b6 a2 Na3 Qe8 Qb3 Qd8 Kd1 Ra4 Nc4+ Kd7 d6 Ke6 d7 Ra8 d5+ Kf6 d6 Qe8 d8B Ra5 d7 Na6 b8N Nc5 b7 Ra7 Ba5 Ne4 d8R Kg6 Na6 Ng3 b8N Ra8 Nd7 Bb7 Nb4 Bg7 Nd5 Rc8 N7f6 Rc7 Nh5 Nf6 e3 Kg5 Ne2 g1Q Nec3 Qf2 Bh3 Kh4 Rg1 Nd7 Bb2 Nc5 Qb6 Qf7 Qa7 Qg6 Qb8 Qh2 Rg2 Qg4 Rg1 Rf8 h8N Rf7 h7 Bf6 Rg2 Rg7 Nf7 Qe4 h8R Rh7 Rb1 a1Q Nh6 Qa2 Ra1 Bd4 Bb6 Qa6 Ba5 Be5 Ng8 Qd4+ Nd2 Qb4 Nc4 Bd4 Ne4 Bg7 Be5 Bf6 Nec3 Bg7 Bf4 Be5 Bh6 Bd4 Ne4 Bb2 Nec3 Qa7 Bg4 Ne2 Bb6 Qaa5 Bh3 Qab5 Ra7 Qa6 Rg6 Ng3 Bf8 Ba8 Bf1 Bb7 Bd3 Kh3 Ba5 Kg2 Bf1+ Kh1 Bh3 Kg1 Rg7
1R1N3N/4q1p1/2K1b1BN/pn2BpP1/p2N1P1k/N1n1B3/QRr2r2/2b1Bb1R b - - 0 1 illegal: Other
KQqQNRR1/3N1pRp/k1p1b1Rn/bB2RPNP/1r3R1n/6p1/3r4/B1b5 b - - 0 1 illegal: No proof kernel
2kr4/Q1N3B1/Kp2p1p1/1nQN2P1/pN2r1b1/n1b1P2N/Q1N4N/bB1qR1R1 b - - 0 1 illegal: No proof kernel
2q4r/2n5/1Q5b/prbp2p1/4RRPn/N1Q1BbBK/Bp1PkBBN/B2N4 b - - 0 1 illegal: No proof kernel
3b3R/N1b2np1/3nq1r1/1bpkNR2/2PBRpPB/1B4Qp/2K1N3/NrN2B2 b - - 0 1 illegal: No possible last move, all moves rejected
Q1r1Qq1Q/Rk1p2pK/1rpRR2N/3N4/RRP2nP1/5p2/2nbbR2/n1B2B2 b - - 0 1 illegal: No possible last move
N1K5/1NQ1NqQ1/1pq2p2/RP1N2B1/3r2Rn/1b2pB1Q/k2pP2b/2nNrN2 b - - 0 1 illegal: No possible last move, all moves rejected
8/1pn1BNK1/1pB3pr/3NNB2/1p1kBRQq/bb1RR1P1/1P2qr2/n1N1B3 b - - 0 1 illegal: Other
Q5K1/b2b2B1/B5pk/R4RR1/1R3BqP/1PbBb1Q1/rn1R4/b2N1N2 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 b4 g4 b3 axb3 h5 gxh5 c5 d4 a5 Nc3 c4 Bh3 a4 Bf1 a3 Nb1 a2 Bd2 Ra7 Bc1 Ra3 bxa3 Na6 Bf4 Bb7 Bc1 Nc5 dxc5 Bc8 Kd2 Kf7 Kc3 e5 h4 e4 Kd4 e3 Ke5 e2 f4 e1B a4 c3 d6 g6 c6 Kg7 f6+ Kh7 c7 c2 f5 Bb7 Ke6 Be4 Kf7 Bf3 c8B Bg7 a5 Bf8 h6 Ba8 d7 Bg7 a6 Qb6 d8R Bf2 a7 Qa5 Qf3 Bd4 Bd3 Bf2 Ne2 Bf8 Rg1 Qc5 Qg3 Ne7 Bf4 c1B Bca6 Be1 Nec3 Qc6 Nd2 Qb5 Nd1 Qd7 Nf1 Bb7 a8Q Bc6 Rb8 Qd4 Rb4 Nd5 Rg2 Rg8 Rf2 Ne3 Rd2 Kh8 h7 Nc4 Ke6 Nb2 f7 Kg7 h8R Be8 Rh5 Bc5 f8R Ba7 Rg5 Kh6 f6 Bd7+ Ke7 Rh8 Kf7 Rh7+ Kg8 Rf7 Be5 Qg4 Bf4 Re7 f7 Re2 Re8 Rg2 Ree5 Rh2 Ref5 Rf2 Rc2 Bce3 Re2 Bc3 Rd2 Bcd4 f8B+ Bg7 Rc1 a1B Rcc5 Rg2 Ra5 Rf2 Be7 Bc3 Bf6 Na4 Re2 Rh2 Re1 Ra2 Re2 Nb2 Rd2 Bcd4 Bh8 Bc3 Bg7+
N2BNK2/N1q1P3/1Q4B1/1n2bQ2/1b1RNkPR/3Qq3/qQ1Qpq2/4r3 b - - 0 1 legal: proof: c4 a5 b4 g5 a4 b5 axb5 d5 cxd5 a4 h4 Nc6 hxg5 Ra5 bxa5 Nb8 e4 e5 d4 Bc5 f4 Ne7 d6 Kf8 d7 Kg7 d5 Bb7 Qf3 Kg6 Qb3 Ng8 Qd1 Bf8 d6 Bd5 exd5 e4 Rh4 Nc6 Rh1 Ne5 fxe5 Qc8 Qb3 Qb8 Qd1 Qd8 Kd2 Kf5 Ke3 h5 Kd4 h4 Kc5 a3 g4+ Kg6 b6 f5 a6 a2 e6 e3 b7 h3 b8Q c6 a7 f4 a8N h2 Qd3+ Kg7 g6 Kf6 g7 Ke5 Nf3+ Kf6 Ne5 Kg5 Qb2 f3 Qf5+ Kh6 Nd2 f2 Ne4 Qe7 d8Q Qc7 Bd3 Ne7 d7 f1Q d6 Qf2 Rb1 a1B g8N+ Kg7 Qdb8 Nc8 d8Q Na7 Ngf6 Kh6 Ne8 Nb5 Qb6 Rg8 Rd1 h1Q Bc2 Qhe1 Rd4 Qa5 Bd2 Qa4 Ba5 Qa2 Rg1 Rg5 Rh1+ Rh5 Rh4 e2 Qb1 Bc3 Qb2 Bg7 d7 Be1 Ng6 Be5 Ne7 Bd2 Nc8 Bc3 Qb3 Bd2 Na7 Bb4+ Kc4 c5 Kd5 c4 e7+ Nd6 Ke6 c3 Bd3 c2 Qdb8 c1Q d8Q Nb5 Kf7+ Bf6 Kf8 Qce3 Qf4+ Kg6 Bc2 Rc5 Qd3 Rc4 Bb1 Rc1 Qdd6 Re1 Qdc5 Qh3 Qfd2 Qhe3 Qcc2 Qc6 Qf4 Be5 Qb2 Qd6 Qb8 Qd7 Bd8 Qc6 Qf3 Qc7 Qb6+ Qc6 N4f6+ Kg5 Qfe4 Qc7 Qd5 Qg2 Ne4+ Kf4 Bc2 Qf2 Qd7 Kf3 Qf5+ Bf4 Qff6 Qc3 Nc5 Qf1 Qc4 Qff2 Bg6 Kg3 Qf5 Be5 Qcd3 Qc2 Nd7 Qc6 Ndf6 Qc7 Qc8 Kf3 Ne4 Kf4 Qf5#
4N2N/N2P3K/1QP2N1B/k2b3q/2Q1Bb2/1n1n4/2pnNRb1/2QQRb2 b - - 0 1 legal: proof: e4 f5 exf5 b5 a4 c5 axb5 d5 c4 h5 h4 g5 hxg5 a5 b4 Ra6 bxa5 Rb6 Na3 Rd6 Nb1 d4 d3 Rd5 cxd5 c4 Be3 c3 Bc1 Rh6 Qc2 Rc6 Qd1 Rc4 dxc4 Bh6 Nh3 Bg7 Ng1 Bf8 Ke2 Kd7 Kd3 Kc7 Ke4 e5 g4 c2 f4 h4 d6+ Kb7 g6 d3 a6+ Kb6 d7 h3 f6 h2 Kf5 e4 f7 e3 g5 e2 a7 e1N a8N+ Kb7 b6 d2 g7 Nf6 Kg6 Nd3 g8Q Nd5 f5 Kc6 c5 Kb5 f6 Bg7 f8N Nc3 c6 Kb4 b7 Nf4+ Kh7 Ng2 g6 Nb5 f7 Ne3 Nc3 Na7 Nge2 Be5 g7 Bc7 Nb5 Qe8 Ng6 Bf4 Bg2 Nc4 Be4 Na6 f8Q+ Nc5 b8Q Ba6 Rf1 h1B Nac7 Bg2 Nh8 Qe5 Rb1+ Ka5 Rf2 Nd3 Ne8 Qd5 Qfd6 Qf7 Qf1 d1B Be3 Nd2 Qb6+ Ka4 Rc1 Qh5+ Qh6 Kb4 Qd5 Ka4 g8N Kb4 Ngf6 Ka4 Ng1 Bdf3 Re1 Kb4 Ne2 Ka4 Nbd6 Nb5 Nc8 Nd4 Na7 N4b3 Qdc5 Bc4 Qg1 Bf1 Qg4 Bd5 Qc4+ Nb4 Ng3 Bh1 Qd1 Bhg2 Ne2 Qe5 Qbd4 Ka5 Qh1 Nd3 Qc1 Bh2 Bh6 Qh5 Qd1 Bb8 Qb2 Bg3 Qbc1 Bc7 Qh3 Bd6 Qe3 Bf4 Qb6+
5B2/1B2Q2b/b4Rpp/6PB/Q2KBrpN/2rPQ3/1Q3qQk/3RNn2 b - - 0 1 illegal: Other
BR3R2/2R2n1R/n3q3/4N1pp/2B1PP2/Bn1p3r/3NkQ2/2bRB1KQ b - - 0 1 legal: proof: b4 e5 a4 c5 d4 f5 dxc5 b5 axb5 a5 bxa5 g5 h4 e4 g3 f4 h5 Ba6 f3 Bb7 fxe4 f3 e5 Be4 Qd4 Bg6 hxg6 Ra6 Qd2 Rf6 Qd1 Rf4 gxf4 Qf6 Qd4 Qb6 Qd1 Qd8 Kf2 Ke7 c4 Ke6 e4 d5 b6 h6 a6 d4 c6 Ba3 b7 Qf8 c7 Nf6 c8Q+ Nbd7 b8B Qg7 a7 Nh5 a8B Re8 c5 Qf7 c6 Bf8 g7 Qf6 g8R Ng3 c7 Nf5 Nd2 Ba3 Ba7 Nd6 Rf8 Nf7 Bc4+ Ke7 e6 Kd6 e7 d3 Qd8 Qe6 c8R Bb2 Qa5 Nb8 Rc7 Na6 Qa2 Rc8 Kf1 f2 e8R Rb8 Kg2 f1N Bf2 Ba3 Rec8 h5 Be1 Rb2 Nf3 Rb1 Rb8 Bb2 Nb3 Nd2 Ne5 Ba3 Kg1 Bb2 Nd4 Nb3 Ndf3 Ba3 Qf2 Rb2 Qa7 Rh2 Qf2 Rh3 Ra2 Bc5 Nd2 Be3 Re7 Kc5 Ba3+ Kd4 Rc7 Kc3 Rb2 Na5 R2b7 Nb3 Qg4 Kc2 Qh4 Kd1 Ra7 Nd8 Rh7 Nf7 Rd7 Bd4 Rc7 Bb2 Kg2 Bc1 Rf1 Rf3 Qh1 Rh3 Kg1 Qf5 Qh4 Qg6 Bf2+ Ke2 Rd1 Qf6 Be1 Qe6 Qf2+
1B3Rb1/P2RrrB1/1b2p1pk/rQNBp3/p2QR2N/6BB/1R2P1K1/8 b - - 0 1 illegal: Other
1rq1Nr1r/6N1/1PnB4/QnR2Q2/1n1Q1bBN/Nn6/RPn1KQ1Q/k7 b - - 0 1 illegal: No possible last move
B1r5/Qb4Q1/1K2n1Pb/2BQ1bR1/Nb3NPb/4BR2/1rB4k/2q2QQq b - - 0 1 illegal: No possible last move
6kN/3rqq2/7Q/Qr4QQ/1PPRN3/2BBn2r/Kn1n3r/QR1R1bR1 b - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 g5 a4 f5 axb5 e6 e4 f4 h4 f3 hxg5 Nh6 g6 Ke7 g5 Ke8 g7 Bd6 g6 Bg3 fxg3 Ng8 g4 f2+ Kd2 Qe7 g5 Qf8 Bh3 f1N+ Ke1 Ng3 Bf1 Nf5 exf5 Qf6 Qe2 Qe7 Qd1 Qd8 Kd2 d5 Kc3 a5 Kb3 h5 c4 h4 f6 e5 c6 h3 c7 d4 b6 d3 b7 d2 Ka2 a4 b4 h2 Nc3 a3 Nge2 e4 Nf4 e3 Rb1 e2 Bb2 e1Q Bd3 Nh6 Ne4 Qf2 Qh5 Na6 b8R Nf5 Bc3 Qe7 Rhd1 h1R Rb6 Rh2 Rd6 Ne3 Rd4 Rb8 g8Q+ Qf8 Qg7 Rb5 Qgh6 Bh3 g7+ Qf7 g6 Nc5 Q6g5 Bf1 g8R+ Qf8 Qg1 Na4 f7+ Ke7 c8Q Nb2 g7 Qe2 Qhg4 R8h3 Qcf5 Qf2 Qgh5 Qd8 Rdc1 d1R Qc5+ Qd6 Ng6+ Ke6 f8Q Qf7 Qcg5 Qde7 Qgh6 Rdd2 Qd8 Rd1 Qa5 Rdd2 Kb3 a2 Rd1 a1N+ Ka2 Nb3 Rf8 Rdg2 g8Q Nd2 Qgh8 Rgg5 Rg8 Rgd5 Qgg5 Rd7 Rf8 Qfe8 Rf4 Q8f8 Rg4 Kf7 Qhf6+ Kg8 Rg1 Rbb7 Qc6 Qf5 Qca4 Rb5 Qa3 Na4 Qb2 Qff7 Qa1 Nb2 Nh8+
n1rr2nR/k3B3/1NnR1B2/b4bPB/1P6/1Q4Qn/rNN2NKb/1N2B3 b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Rh8 g5 Qd6 g7 Ra8 Bg2 Qg6 hxg6 Ng8 Bf1 Nb8 Kf2 Kd7 d4 c5 b4 Kc7 b6+ Kb7 f6 h5 d6 e5 f7 a5 d7 h4 d8B e4 d5 h3 d6 c4 d7 c3 Qg4 h2 Ne2 a4 Bf6 a3 d8N+ Ka6 b7 c2 Kg2 a2 Bd2 c1N Qg3 e3 Nf4+ e2 Nc6 Kb6 Be1 Bf5 Nd3 Nb3 Nb2 Nd7 b8N Bc5 f8B Na5 Nd4 Ka7 B8e7 Nc6 Nc2 Nb6 Nd7 Bg1 Ne5 Re8 Ng4 Na8 Nf2 Rf8 Nfd3 Bb6 Nf2 Nh6 g8N Rc8 g7 Ba5 Be5 Rd8 Nf6 Ng8 Nd5 Rc8 B5f6 Rd8 Bd2 e1B Nb6 Rc8 Bdc3 Bd2 Bc4 Bf4 Bf7 Bd6 Rd1 h1N Bh5 Bf4 Rd6 Rd8 Nfd1 Nf2 Be1 Nh3 Nf2 Rc8 Qb3 Bh2 Qg3 Nh6 g8Q Rd8 Qf7 Ng8 Qfb3 Rc8 Nc3 Rd8 Rad1 a1R Nb1 Ra2 R1d4 Nh6 Rg4 Rhf8 Rh4 Ng8 Bf3 Rc8 Rh8 Rfd8 Bh5
1B3KR1/NR3NP1/2BR2r1/2qq2n1/1r5Q/BkR1r1Q1/1n1q2rP/2B1n2B b - - 0 1 legal: proof: d4 d5 g4 g5 a4 h5 gxh5 c5 f3 b5 axb5 g4 e3 g3 dxc5 d4 Ke2 d3+ Ke1 Bg4 fxg4 Bg7 Bg2 Qd7 Bf1 Bd4 exd4 Qd8 Kd2 Kd7 Ke3 Ke6 Ke4 a5 b4 f6 c4 g2 d5+ Kf7 Kf5 e5 d6 d2 b6 a4 c6 e4 b7 a3 b5 e3 b6 e2 g5 e1R c5 a2 d7 Qc7 d8R Re3 g6+ Ke7 h6 Rh3 g7 Raa3 Kg6 Ke6 h7 f5 Nc3 f4 Qf3 d1Q Bb5 Ra8 Rd6+ Ke5 Rb1 a1N Qg3 Na6 b8B Nh6 b7 Qd2 Ba3 Qd7 c7 Nf7 c8B Ng5 c6 Nc2 c7 Nab4 Bc6 Nd3 Nb5 Nb2 Na7 Ne1 Rc1 Qd5 Rc3 Kd4 Kf6 Rh4 Nh3 Re8 h8Q g1Q Qh6 Rg4 Qhh4 f3 Kg6 f2 Kf6 Nf7 Ng5 f1R+ Kg6 Re5 Kh7 Rf6 Kg8 Qf2 Kf8 Re3 Rg1 Qdf5 B8d7 Q5c2 c8R Rg6 Bc7 Qce2 b8B Qd2 Bf5 Rf4 Be4 Rg4 Bh1 Qf5 Rb3 Kc4 Rb7 Rf4 Bb6 Kb3 Rf1 Rb4 Rf3 Qfc2 Bd4 Qcc5 Bc3 Qc2 Bd2 Qd1 Bc1 Q1d2 Ne6 Ng5 Nd8 Qdc4 Nf7 Q4d5 Nb5 Raa4 Na7 Ra6 Rf4 Rab6 Rc4 R6b5 Rc2 Rg4 Rc4 Rb4 Rc3+ Ka2 Qg2 Rgf4 Qgg3 Rf2 Rd8 Rg2 Re8 Rd3 Ke7 Rf3 Rg8 Rd3 Rc4 Re3+ Kf8 Kb3 Rc3+
2NQb2r/rr2n1QQ/Q2RrNN1/K1k2P2/b1P1NpB1/3qB3/4Rn2/4Q3 b - - 0 1 illegal: No possible last move
2Qq4/1R1qb1N1/K6p/nP1RQ1Bk/1R1R1P1b/1R3rr1/2BqQ2Q/3bN3 b - - 0 1 legal: proof: a4 b5 axb5 d5 c4 f5 cxd5 g5 e3 f4 exf4 g4 f3 Bd7 Ke2 Be6 Ke1 Bc8 fxg4 Kd7 h4 Ke8 h5 Nf6 h6 Nh5 g3 Ng7 hxg7 Bd7 g5 Bc8 g6 Nd7 g4 Nf6 g5 Ng8 Ke2 c5 Kd3 a5 Kc4 e5 b4 h6 d4 a4 b6 a3 Kb5 e4 b7 e3 b8R a2 d6 e2 d7+ Ke7 d5 e1Q d6+ Ke6 Bd3 c4 Nh3 c3 Rb7 c2 Bb2 c1Q Bf6 Qed2 Bc2 Qc7 d8R Be7 d7 Qb8 Qe2+ Qe3 Nd2 Qf1 Nf3 Qc1 Ne1 Ra4 Rb1 a1B Rb3 Qe4 Kb6 Kf5 b5 Rb4 Ka6 Bf8 Rg1 Ne7 g8Q Rc4 g7 Kg6 Qe6 Rg8 Qe5 Bc3 Qh2 Kh5 g6+ Qf5 Ng5+ Qh3 Rg2 Qd2 Ne6+ Nf5 Rb4 Be7 Bg5 Nd4 Rg3 Nc6 Rf3 Bd4 Rfb3 Rc3 Qhe2+ Rf3 Qh2 Rf8 g8Q Bf2 g7 Bh4 Qh8 Qg4 g8Q Na5 Qee2 Rf6 Qhg7 Rg6 Qge5 Rg7 Rf8 Rg6 d8R Qc7 Rdd4 Qd8 Rf5 Qh3 Qeg7 Bd7 Rfd5 Qf5 Bf6 Rg3 Bg5 Qh3 Qge5 Be8 Nc7 Qhd7 Qge6 Bg6 Ne8 Bf5 Qc6 Bg4 Qc8 Rd3 Q2e3 Bd1 Qee2+ Rdf3 Ng7+
1K3B1q/rN5B/bNPQpQ1q/k4NR1/N7/1n2rQ1R/nP3r2/Q2q3N b - - 0 1 legal: proof: g4 b5 d4 c5 dxc5 g5 a4 f5 axb5 e6 e4 f4 h4 f3 hxg5 Nh6 g6 Ke7 g5 Ke8 g7 Bd6 g6 Bg3 fxg3 Ng8 g4 f2+ Kd2 Qe7 g5 Qf8 Bh3 f1N+ Ke1 Ng3 Bf1 Nf5 exf5 Qf6 Qe2 Qe7 Qd1 Qd8 Kd2 h5 Kc3 a5 Kc4 a4 c6 d5+ Kc5 d4 c4 d3 c7 Kd7 Kb6 a3 c5 a2 f6 d2 c6+ Kd6 f7 h4 f8Q+ Kd5 Nc3+ Kd4 Qd6+ Ke3 Bd3 h3 Na4 h2 Ne2 Na6 Ng3 Nh6 g8Q Rh7 g7 Qd7 g6 Qe8 Qf7 Qe7 g8Q Ng4 g7 Ne5 Qf6 Rh3 Bh7 Nd3 Qgf7 Ne5 g8N Nc5 Nh6 Ba6 c8N Qe8 Kc7 Nb3 b6 Nd3 b7 Ra7 Kb8 Nb4 Qfh5 Qg6 Ncb6 Qg7 Rb1 a1R Qhd5 Na2 Nhf5+ Kf2 Qa5 Qh6 Qh5 d1Q Qg4 Qg6 Bh6 Qh5 Bf8 Qh6 Rg1 h1Q Rc1 Qh2 Rc3 Rc1 Qe4 Rc2 Qed5 Rd2 Nh1+ Ke2 Rg5 Re3 Qd3+ Ke1 Qdd5 Rf2 Qf3 Q2h4 Nd5 Kd2 Ndb6+ Qd4 Rd3+ Kc2 Qe1 Qe2 Qa1 Qd1 Kc8 Bb5 b8N Qe5 N8d7 Ba6+ Kb8 Qc3 Qd8 Qh8 Qf6 Nd4 Nc3 Kb3 Nc5+ Kb4 N3a4 Nb3 Nb7+ Kb5 Rd4 Qe2 Rh4 Qd1 Nbc5 Ka5 Rh3 Kb4 Nb7+ Kb5 Nd8 Ka5 Nb7+
1K1n3R/Bb3P1Q/q4P1Q/2r3Rn/1n1qr1QB/1Q3q1p/B5QN/5BkN b - - 0 1 illegal: No possible last move, all moves rejected
3QR1b1/1kP1Q1q1/4bqRn/N1R1R2B/1bp1BP1B/1r1B4/1R1n1N2/n5K1 b - - 0 1 legal: proof: b4 b5 e4 d5 h4 g5 hxg5 a5 c4 c5 cxd5 f5 exf5 c4 a4 Ra7 axb5 Rc7 Bd3 Nh6 Bf1 Rc5 bxc5 Ng8 g4 Kd7 d4 Kc7 c6 h5 g6 e5 b6+ Kd6 b7 Kc7 g7 h4 d6+ Kb6 f6 e4 f7 h3 d7 e3 c7 h2 d5 e2 g5 a4 d6 a3 g6 a2 Na3 Qe8 d8Q Rh7 d7 Nh6 g8B Rh8 g7 Ng4 Nh3 Na6 b8R+ Kc6 Qe7 Nb4 d8R Ne5 Rg1 h1B Nb5 Qd7 Bh7 Ng4 g8B Nh2 Nd4+ Kd5 Rg6 Na6 Re8 Qg4 Rb2 Nc5 Bg5 Nb3 f4 Be6 Kf2 Nd2 Nc6 e1N Rc1 a1Q Bh4 Nc2 Bd3 Qg5 Rcb1 Ng4+ Kg1 Qf6 Nf2 Nh6 Rc1 Qa5 Ra1 Qac3 Ra6 Na1 Ra4 Bg7 f8R Qce5 Rf7 Bf8 Raa8 Qg7 Rf5 Bg2 Bf7 Be4 Qg5 Bb4 Ra5+ Kd6 Qf6 Bd5 Rc5 Qc3 Qg5 Qcf6 Re5 Kd7 Nd8 Kc8 Nc6+ Kb7 Be4 Qf5 Qd8 Qff6 Qe7 Nf1 Qd4 Nd2 Bd3 Bf3 Qdd8 Bfd5 Rg4 Rf8 Bh5 Bg8 Bhe4 Bde6 Qdd7 Nab3 Rg6 Na1 Rc8 Rd8 Qd5 Rd7 Re8 Rd8 Qd4 Ra8 Qd5 Ra3 Qdd8 Rb3 Na5+
5R2/R4bb1/1nNKPBNk/rQR5/1p5B/2bn2nr/3BB1P1/QRr3R1 b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 h4 e5 c4 g5 hxg5 e4 cxd5 e3 fxe3 b4 e4 Qd7 e5 Qb5 axb5 Kd7 Qb3 Kd8 Qd1 Ke8 Kf2 f5 Ke3 Kf7 Kf4 Kg6 d4 h5 e4 c5 a6 h4 a7 h3 b6 c4 e6 h2 Ke5 c3 e7 c2 e8Q+ Kh7 b7 f4 d6 f3 g6+ Kg7 d5 f2 d7 Nf6 d8B Be7 d6 Nh7 d7 Bf6+ Kd6 Bd4 e5 Nf8 e6 Rh5 Be2 f1R Bf6+ Kg8 d8B Bc3 g7 Kh7 g8R Ra5 Qb5 Na6 b8R Ra3 Nf3 Bd7 Bd2 c1B Nh4 Nc5 Rc8 Be8 Ng6 Nd3 Rg1 h1N Rc5 Nd7 Rf8 Nb6 Qe1 Rb3 Na3 Bf7 Nc4 Ng3 Rb1 B1b2 Na5 Ra3 Nc6 Ra5 Qf2 Rc1 Qe1 Rb8 a8R Rc8 Nf4 Kh6 Ra7 Rb8 Bh4 Bg7 Bdf6 Bc3 Qd1 Rd8+ Ke7 Rd5 Qda4 Rg5 Qa1 Rh5 Kd6 Ra4 Bd8 Ra5 Bhf6 Rh1 Bh4 Rh2 Bdf6 Rh3 Ng6+
1r2R1n1/2B1Q1B1/P2R2b1/r1RrBQK1/n3kB2/qP3N1R/p6r/N2B3q b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 h5 g4 d5 cxd5 Na6 gxh5 Nb8 Ne2 a5 Ng1 b4 Qc2 b3 axb3 a4 Qd1 Ra5 Ke2 Ra7 Ke1 Ra8 Na3 e6 Nb1 a3 Nh3 a2 Ng1 Ba3 bxa3 Ra7 Ke2 Ra4 Ke1 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 h4 c5 f4+ Ke4 d4 g5 h6 e5 a4 c4 d6 c3 a5 c2 a6 Kd5 h7 e4 d7 e3 h5 e2 f6 e1Q f7 Qde8 f8B Q1e5 h6 Bb7 d8R+ Qd6 f5 Bc8 Qe1 Qf7 Nf3 Nd7 f6 Ra7 Bf4 c1R Be2 Rc5 Bd1 Qe8 f7 Qde5 Na3 Qb8 Qe7 Rc2 Rh3 Rh2 Rc1 Qb4 Nc2 Qa3 Bg7 Ra8 f8Q Rb8 Bge5 Ke4 d5 Nb6+ Rd7 Qf7 d6 Qd5 Na1 Na4 Rc5 Qb7 Kh5 g4 Kg5 g3 Rd8 g2 d7 Qc6 Re8 Qa8 d8R Bf5 Rd6 Bg6 Qff7 Rb5 Qfe6 Ra5 Qg4 Nf6 Qh5 Rg8 h8B g1R+ Qg4 Rgg2 h7 Rd2 Bg7 Rd5 h8B Qc6 Bh6 Rf8 B8g7 Ng8 Qc8 Qa8 Bg3 Qc6 Qf5+ Ke3 Re6 Rf6 Bc7+ Re5 Ne1 Qh1 Kh4+ Kd4 Bc1 Rd5 Kg5 Re5 Rb6 Rd6 Bd2 Rd8 Bc3+ Ke3 Nf3 Rb8 Bb2 Re4 Bbe5 Rd4 Rd6 Rd5 Qfd7 Kd3 Bf4 Ke4 Qf5+
1nkr2B1/1pPqN1K1/Q1B1R2n/N2R1bn1/b5R1/1R2B1Q1/5BP1/B2q2n1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 Ra7 c4 Ra6 Be2 c5 Bd3 Bg7 Nf3 Be5 Bc2 Bf4 Rh5 Rd6 Rh1 Rd5 cxd5 c4 Ng1 c3 Bd3 c2 Bf1 Bd6 Ne2 Bb4 Ng1 Bc3 dxc3 Qd7 Nf3 Qc7 Ng1 Qd8 Kd2 Kd7 Kd3 e5 Ke4 h5 f4 h4 a4 h3 a6 h2 c4 d3 g6 d2 d6 Rh4 f6 Qa5 Kf5 e4+ c5 e3 a7 e2 a8R e1Q f7 Qe7 f8B Nc6 g7 Rg4 Nf3 Qe8 Bb5 Qc7 a5 Rh4 a6 Rg4 a7 Qe2 Ra3 Qe8 Qe1 d1B Qg3 Qcd8 Re1 h1N Nh4 Qb6 Ng6 Qed8 Nd2 Nf2 Nb3 Ne7+ Kf6 Rh4 g8B Rh7 f5 Nh1 Bg7 Qe8 Ra4 Qc7 Rg4 Kd8 d7 Nd4 c6 Qb8 Re5 Nf2 Be3 Nh3 Bf2 Kc7 d8R c1N Bh6 Rg7 Bhe3 Rh7 Rd6 Rh5 Kg7 Nce2 f6 Neg1 f7 Be6 Ba4 Qbd8 Rb5 Rg5 Na5 Rd5 Rb8 Bc8 a8Q Ng5 Qa6 Bc2 Rb4 Be6 Bb5 Ba4 Rb3 Bc8 Rf6+ Qd6 Ra8 Be6 Rd8 Nef5+ Kh8 Bc8 f8B Nh6 Bg7 Bf5 Re6 Qf7 Rd7+ Kc8 c7 Nc6 Ba1 Nb8 Bc6 Qe8 Kg7 Rd2 Qh3 Qd3 Rdd6 Qc2 Qg3 Qd1 Rd5 Rd3 Rde5 Rd8 Rd5 Qd7+ Ne7+
kR3q2/PR1P2bB/2n1Kn2/pB3BR1/1rn4N/1QN2R1R/5nq1/B5Qb b - - 0 1 illegal: No possible last move, all moves rejected
3N3r/kR3Pn1/1b1rpQ2/B6R/1nQ4n/n1nB1B2/2Pb3K/NNBBN3 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 g5 g4 Bg7 e4 Bf8 exf5 Bb7 h3 Be4 f6 Bf5 gxf5 g4 Ra3 g3 Ra1 Qc7 Rh2 Qf4 Rh1 Qg4 hxg4 Bh6 Bg5 Bg7 Bc1 Bf8 f4 Kd8 b4 Kc7 c6 Kb6 g5 h5 g6 d5 g7 a5 c7 h4 c8B h3 f7 h2 f6 d4 f5 d3 Qe2 a4 Nf3 g2 Kf2 g1B+ Kg2 a3 Ne1 d2 Qc4 d1N Bd3 Nh6 g8B Bg7 f8Q a2 f7 Na6 f6 Nc7 Bg4 Nf2 Bd1 Ka7 b6+ Kb7 b5 Nf5 Qd8 Ne6 f8B Ned4 Bd5+ Nc6 f7 e6 B5f3 Bh6 Qf6 Ne4 Bb4 Nc3 Ba5 Ng7 Kh3 Kb8 b7 Ka7 b8N Nb4 Nd7 Bb6 Nc5 Rad8 Nb3 Bd2+ Kg2 Rd6 Kg3 Bc5 b6+ Kb8 b7 Bb6 Rf1 Ka7 b8N h1N+ Kg2 Ng3 Rh1 N3f5 Rh5 Nh4+ Kh1 Nb5 Kh2 Na3 Nc6+ Kb7 Nc3 Ka8 Rb1 a1N Nd8+ Ka7 Nc5 Nb3 Rb2 Rh7 Nb1 Nd4 Nb3 Rh8 Na1 Ne2 Rb3 Nc3 Rb2 Nc6 Rbb5 Bbe3 Rb6 Nb4 Rb8 Bb6 Rb7+
B1Qn1B2/KQ1r3B/4n3/2r1B2b/1P1r4/1r1nRkB1/1P1pN1N1/Q3R1bQ b - - 0 1 legal: proof: g4 f5 a4 h5 gxh5 b5 axb5 c5 d4 f4 dxc5 f3 c3 Rh7 exf3 Qb6 f4 Qa5 f5 Qb4 cxb4 Rh8 Kd2 Kf7 Ke3 Kf6 Kd4 d5 f4 a5 h4 g5 c6 a4 Kc5 e5+ Kb6 a3 c7 a2 h6 d4 h5 g4 h7 d3 h6 e4 Na3 e3 Rh4 g3 Nc2 e2 Ne3 e1N Bg2 Ba6 c8B Bb7 Ne2 Kf7 f6 Kg6 f7 Ra5 f5+ Kg5 f6 Ne7 Re4 Nec6 Bf5 Nd8 Bg6 Bd6 f8Q Na6 Ka7 Bc5+ b6 Rb5 f7 Nc7 Qg7 Nce6 f8B Bc8 Bf3 g2 Qb7 g1R Ng2+ Be3 Bd2 Rc5 Bc3 d2 Be5 Nd3 Qa4 Rg8 h8Q Rg7 h7 Rd7 Re1 a1R Qa6 Rac1 Qa1 R1c4 Qg8 Rh1 h8Q Bg1 Bg3 Rcd4 Bh7+ Ng7 Qe6 Rh5 Qh3 Nge6 Qh1 Rh3 Qc7 Rf7 b7 Rfd7 b8B Ba6 Qb7 Bc4 Bg8 Bb3 Bbe5 Bd1 Re3 Kf5 Bh7+ Kg5 Bd5 Kg4 Re4+ Kf3 Qc7 Rh5 Ba8 Rc3 Qb7 Rb3 Qf6+ Rf5 Qe7 Rg5 Qc5 Rf5 Qc8 Rh5 Bef4 Rc5 Be5 R4d6 Nef4 Rd4 Nd5 Be2 Nc3 Bd1 Bgf4 Kf2 Bh2 Bh5 Ne2 Kf3 Bhf4 Rdc4 Bg3 Rcd4 Re3+
R3bbN1/1Kn1P2n/1N2bNQ1/1RP4B/4RBrk/3Npr2/1R4R1/3Qr2r b - - 0 1 legal: proof: d4 b5 g4 d5 a4 e5 axb5 h5 gxh5 c5 dxc5 d4 f4 d3 exd3 e4 d4 Qc7 d5 Qe5 fxe5 Ba6 Ra2 Bb7 Ra1 Bc8 Ke2 Ke7 Ke3 g5 Kd4 a5 b4 f5 h4 a4 c4 a3 b6 a2 h6 f4 h5 g4 c6 f3 Kc5 g3 d6+ Ke6 b7 Kf5 Kb6 Kg4 h7 g2 d7 Ra7 d8Q Ra4 h6 Ra8 c5 Ra5 c7 Nc6 b8R Nge7 e6 Ng6 b5 Nge7 Qe8 Nb4 Bf4 e3 Rh4+ Kf5 Nc3 f2 Nd5 Rg8 h8R Ra3 h7 Bh6 Ne2 g1R Nf6 Nd3 Nc1 R1g6 Be2 f1B Bh5 Nb4 Nd3 Rf8 Rg8 Na6 h8N Rg4 Nf7 Ng6 e7 Be6 c8N Nc7 Kb7 Ra8 Rb1 a1R b6 R8a2 Rb3 Re2 Rb5 Re1 Ra8 Bh3 Qc6 Bd7 Qg2 Be8 Rg7 Ne5 Qg3 Nf3 Rg6 Ng5 Qg2 Bg7 Nh6+ Ke6 Qgc2 Nh7 Nhg8 Kf5 Qg2 Rf7 Qc6 Bf8 Qd6 Rg3 Rg7 Rf3 Rg2 Rg7 Rbb2 Rg4 Qc6 Bf7 Qe8 Be6 Qf7 Bd7 Qg6+ Ke6 Qg5 Rh1 Qc1 Bb5 Bd6 Rd4 Qg6 Ba6+ Kb8 Bb5 b7 Be8 Qd2 Rae1 Qd1 Rdf4 Ka7 Rd4 b8R Bg4 R8b5 Rdf4 Qh6 Kf5 Kb7 Rb4 Qg7 Rd4 Qf7 Kg5 Nb6 Ra4 Bg3 Be6 Bd6+ Rg4 Bh2 Rgg3 Re4 Rg4 Qg6+ Kh4 Bf4
2BQ1r1R/1NQp4/3b2qB/q2NBrB1/1n5R/N2r1k1K/3PP3/1Nr1rB2 b - - 0 1 illegal: Other
2q1B1n1/1qn1Q1Rn/4R1q1/B4RQ1/KBPN1rR1/3kPp1B/N6b/2R3q1 b - - 0 1 legal: proof: d4 a5 g4 e5 a4 b5 axb5 f5 f4 c5 dxc5 g5 fxe5 f4 h3 Ra6 Bd2 Rf6 Bc1 Bb7 Na3 Rf5 Nb1 Bf3 gxf5 g4 Ra4 g3 Ra1 Bg4 hxg4 Qc8 Rh6 Qc7 Rh1 Qd8 Kd2 Ke7 Kc3 d5 Kb3 h5 c4 f3 e6 Kf6 b6 Ke5 b7 Ke4 e7 h4 e8B g2 g5 h3 c6 d4 f6 d3 g6 d2 g7 h2 f7 Rh3 c7 Rh8 c8Q Qh4 e3 Qf6 Ka4 Bc5 f8R Ba3 b4 Nc6 b8B Rh7 b5 Rh4 b6 Bd6 b7 Nb4 Ne2 g1N Qd7 Kd3 Nbc3 Rf4 Na2 Na6 Bc7 Qg6 b8R Nh3 Ba3 Ng5 Rb7 Nh7 Qe7 Be5 Rg1 h1Q Rf5 Qh3 Bb4 Qhg4 Bd8 Nc7 Rb6 Bd6 Bh3 Be5 Rf7 Qc8 Rg4 Qb7 Qg1 d1Q+ Ka3 a4 Nd4 Qb1 Re6 Qc8 Rf5 Bd6 Qg3 Qg1 Rc1 Qb7 Kb2 a3+ Kb3 Be5 Ka4 Qc8 Nc3 a2 Qgh4 a1Q+ Na2 Qb1 Qhg5 Nb5 Bda5 Nc7 Bc3 Qbb7 Be1 Ngf6 g8R Bd6 Rg7 Ng8 Rd5 Rf7 Bed2 Bh2 Bdb4 Rf4 Rf5
5kB1/1qR1npN1/n1QQ1P2/bnP5/1Q2r2Q/1QN2qn1/8/K1BqBRB1 b - - 0 1 legal: proof: b4 b5 g4 e5 d4 h5 dxe5 a5 a4 g5 axb5 c5 bxc5 Ra6 Qd3 Rah6 Qd1 h4 h3 Rh5 gxh5 g4 Qd3 g3 Qd1 Bb7 Be3 Bf3 Bc1 Bg4 hxg4 Be7 Bg2 Bd6 Bf1 Bf8 Kd2 d5 Kc3 a4 Kb2 g2 e4 h3 c4 h2 f4 d4 e6 d3 f5 d2 e7 Qd6 b6 Bg7+ e5 Bf8 c6 Nh6 b7 Ng8 c5 Qg6 h6 Qh5 g5 Qe2 c7 Qe3 g6 Rh7 g7 Qd4+ Nc3 Qg4 Nge2 g1Q Ng3 Nf6 g8Q Qc4 Qg6 Qg2 Qb3 Qg4 Nh5 Qc4 Ng7+ Kd7 e6+ Kc6 Bd3 Qe2 Rf1 Na6 b8B Qd5 e8Q+ Qd7 e7 d1N+ Kb1 h1N Qd8 a3 e8Q Bd6 c8Q+ Bc7 Qe4+ Qd5 Qde7 Qf3 Qeb4 Ng3 Be4 Rh8 h7 Re8 Qh5 Ng8 h8B Qf2 Qed8 Qf3 Qhh4 Ne7 Bd3 Qd7 Ra2 Qdd5 Ka1 Qde4 Rb2 a2 Qdd4 Qd5 Qcb7+ Kd7 Qc6+ Kd8 Bc2 Bb6 Be5 Qd7 Qdd6 Bc7 Bd4 Ba5 Qdf4 Qb7 Bg1 Ne3 Bd3 Nc4 Re2 Na3 Qfd6+ Qd7 f6 Nb5 Bh7 Qf5 Bg8 Qf3 Qdf4 Qb7 Bd2 Ng6 Be1 Re4 Re3 Ne7 Qfd6+ Qd7 Nh5 Ke8 Bg7 Rd4 Bh6 Re4 Ng7+ Kf8 Rd3 Qb7 Bc1 Ne2 Qdh2 Ng3 Rd7 Nh5 Rc7 Ng3 Kb2 a1Q+ Kc2 Qa4 Kb2 Nh5 Qhd6 Ng3 Q3c4 Qc2+ Ka1 Qcd1 Qcb3
2R4n/3R1Qpn/BN5n/1RB3Pr/b2B3N/1Rb5/1n1P1B2/Qnb1Rk1K b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 b5 e4 b4 exf5 b3 g4 Nd7 f6 Nb6 f5 Kd7 f7 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 h4 a5 g5 Ra7 Ke2 Ra6 Ke1 Rf6 gxf6 Kd6 Qf3 Qd7 Bh3 Qe6+ Qe2 Qe3 Bf1 Qg5 hxg5 Kd7 Qg4 Kd8 Qd1 Kd7 Kf2 Kd6 Kg2 Kc5 b4+ Kd4 b6 c5 b7 h5 d6 e5 d7 c4 d8B a4 b5 a3 b6 e4 Bc7 c3 Rh2 e3 Nh3 e2 Bf4 Kd3 Be3 c2 Nc3 a2 Nd5 h4 Bf2 Ne7 Rh1 Nd7 b8R Rh5 b7 Ng6 Nb6 Nh8 Ng1 Bb4 f8B Bc3 f7 Nf6 Nf3 Nh7 f6 Bd7 Bb2 c1B B8c5 Ba4 f8R h3+ Kg1 h2+ Kg2 Rh6 f7 Rh5 Rb1 a1N Rfc8 Nc2 f8Q Na3 Qf7 Bb4 Ba1 Bc3 Rb3 Nb1 Rg1 h1N Nh4 Ng3 Bb2 Nf5 Kh1 Nd6 Rc7 Nf5 Rbc8 Nh6 b8R Ke4 Rcb7 e1N Ba6 Nd3 Ba1 Nb2 Rb5 Kd3 Re1 Nc4 Bb2 Ba5 Bbd4 Bc3 Rd7 Nb2 Qdb3 Nf8 Qa2 Nh7 Rg1 Ke2 Qa1 Ng8 Rg4 Nh6 Re4+ Kf1 Re3 Bb4 Rb3 Ba5 Re8 Bb4 Rbc8 Bc3 Re1#
3Rb3/1Q1N1rN1/1p2PNpR/Rqn1K1Pb/6r1/1N1k4/1B3qBR/1R3Q1n b - - 0 1 legal: proof: c4 a5 h4 d5 cxd5 e5 b4 c5 bxa5 e4 d4 g6 dxc5 e3 h5 Qg5 h6 Bg7 hxg7 Na6 fxe3 Qd8 e4 Nb8 e5 Bd7 Bg5 Be6 Bc1 Bc8 Kd2 Kd7 Ke3 f5 Kd4 h5 a4 f4 g4 b6 e4 f3 d6 Kc6 g5 f2 e6 h4 e7 h3 e8N h2 d7 Ra6 e5 Bb7 e6 Ne7 g8N Nf5+ Ke5 Ng3 Bg2+ Ne4 Nf3 f1B Ngf6 Nc3 Ng7 Bc8 Bb2 Re8 Nbd2 Ne4 Nb3 Nf2 Rb1 Be2 Qf1 Ra8 a6 Rf8 a5 Kb5 c6 Kc4 a7 Rf7 c7 Qe8 d8R Bd7 c8Q+ Kd3 Qc7 Na6 Qb7 Nc5 a6 Rc8 a8R Rc7 Rg1 h1Q a7 Qh4 Rh1 Rc8 Rh3 Nh1 Rh2 Qf2 Rb8 Rc6 a8R Rd6 Ra4 Rd4 Ra5 Ba4 Rba8 Qb5 Rdh8 Rg4 R8h6 Qa6 Rb8 Be8 Ra8 Qb5 Rd8+ Kc2 Nd7 Kd3 Nfd2 Ra4 Ne4 Rb4 Qg1 Bh5 Nef6 Rg4 Qf1+
q7/1BN4B/PKNr2bQ/B3NNn1/1pRpr1q1/b3Q2n/P3R3/2k3BN b - - 0 1 illegal: No possible last move
2n1K2R/1Rbp1QrB/RQ1BR2k/2qQ4/r3P3/1NP5/n1NQ1qbp/1Q6 b - - 0 1 illegal: No possible last move
2KR4/2p1r2R/2Qq2PQ/n4Nk1/1BNbpr1b/4N1qB/NB1P4/Bn5N b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Ke2 e5 Ke3 Ke7 Ke4 a5 b4 h5 b7 a4 g7 h4 f6+ Kf7 Kf5 h3 b5 a3 g6+ Ke8 Ke6 a2 b6 e4 d6 h2 g5 Na6 b8Q Nh6 g8N Nf5 g7 Nh4 g6 Ra7 b7 Nf3 Nh6 Rh7 g8N Ne5 Qa4+ Nc6 Nf5 Nb4 Nc3 Nc2 Bb2 Rd7 Bh3 Na3 Nge7 Bh6 f7+ Kf8 Ned5 Na5 Qc6 Nb5 Nde3 Bg5 Nge2 Nb3 Neg3 Na5 Raf1 a1B Na2 Nc4 Qa8 Ra3 b8N Qc8 Qa5 Bh4 Qc3 Rd8+ d7 Qa6 Rf3 Rc8 d8B Na5 Bf6 Re8+ Kd7 Re7+ Kd8 Qb6 Kc8 Rb3 Qe5 Na3 Qf4 Nb1 Bh8 Qd4 Qh6+ Qg7 Be5 Bc3 Nd5 Nc4 Bg4 Ra3 Qh7 Bg5 Rd3 Qf6 Rd4 Ba1 Qh5 Rf3 Nde3 Rf4 Rd8+ Re8 Bc3 Qd6 Bb4 Be5 Bc3 Na5 Ba1 Bd4 Qh7 Ba7 Bhb2 Bf6 Qd5 Be7 Nc6 Bd4 Ne5 Bf6 N5c4 Bg5 Rd1 h1Q Qc6 Qh2 Rh1 Qg1 Rh5 Bh4 Bh3 Qg2 Nh1 Qg3 Nh6 Ke7 Nhf5+ Kf6 Rh6 Kg5 f8B Qe5 Bb4 Qd6 Qg7 Re5 Rh7 Re7 Qh6+
1kb4b/7Q/1Nn1nQ1R/Q2BnP1Q/1q1N2NR/2b2P2/2p2K1p/Q1N3Br b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 f5 e4 b5 exf5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bh6 d5 Ra5 bxa5 Bf8 d4 Kd7 g4 e5 f3 c5 g6 Kc7 g5 h5 g7 c4 b6+ Kb7 a6+ Ka8 d6 a3 d7 c3 a7 h4 g6 h3 d5 c2 d6 e4 Nc3 e3 Nce2 a2 Nd4 e2 Be3 Qe7 d8Q Qd7 Qf6 Qa4 d7 Qa3 d8Q Be6 Kf2 e1N Bc4 Bf7 Nge2 Be8 Bd5+ Bc6 Nc1 Kb7 a8N Nh6 g8Q Bb4 g7 Ng2 Qh7 Bc3 g8N+ Nf7 Nh6 Qb4 Ng4 Nf4 Rb1 a1B Qe8 Qa4 Rb4 Ne6 Rc4 Qb4 Qg1 Ka6 b7 Ka7 Nb6 Ne5 Qeh5 Bd7 Qe1 Nbc6 b8Q+ Ka6 Qd6 Kb7 Qc5 Kb8 Qa5 Bc8 Nce2 Bab2 Qea1 Rd8 Nc1 h2 Rg1 Rd7 Rg3 Rg7 Rh3 Rg6 Nh6 Rg1 Ng4 Na7 Rc6 Rh1 Rd6 Nac6 Rh4 Bd2 Kg2 Bbc3 Bg1 Bh6 Kg3 Bg7 Kf2 Bh8 Qfg7 Nc5 Rh6 Ne6 Qf6
B1k2qn1/2N1N3/5bqQ/3R4/1n1BBNpN/rbB1q2Q/P1Pp1R2/1N5K b - - 0 1 legal: proof: g4 f5 b4 h5 gxh5 c5 d4 a5 bxa5 b5 dxc5 Ba6 e4 Bc8 exf5 Ra7 Na3 Ra6 Nb1 Rb6 axb6 Bb7 Qd4 Ba6 Qd1 Bc8 f4 d5 Kf2 Kd7 Kg2 g5 h4 e5 b7 b4 h6 e4 c6+ Kc7 f6 b3 h7 e3 f7 e2 f5 e1Q f6 d4 h5 g4 h6 d3 Bb2 d2 Bd3 Ba3 f8N Qe3 f7 Qe5 Rh5 Qe6 Be4 Qg6 Bc3 b2 Nh3 Qdf6 Qh1 Qd4 Rd5 Qd3 Nf4 Bd6 Qh3 Qf6 N8g6 Be7 f8N Bb4 Kh1 Qe5 Nh4 Qg5 N8g6 Qd4 Ne7 Na6 b8N Qe3 Bd4 Bc5 Bc3 Nb4 Na6+ Kb6 c7 Kb7 Bd4 Be6 Bc3 Bd4 c8B+ Kb6 Nc7 Qg6 Bb7 Bf6 Ba8 Bf7 Re5 Bb3 Rd5 Ka7 Na3 Kb8 Rf1 b1Q Bd4 Qb2 Rf2 Qbc3 Nb1 Qc5 Nef5 Ne7 Bc3 Rf8 h8Q Kc8 h7 Ng8 Qg7 Re8 h8B Qf8 Qh6 Re6 Bd4 Ra6 Bc3 Ra3 Bg7 Bd8 Bgd4 Bf6 Ne7+
RrRN2R1/2n2B1k/bBbR4/qP1Q1p2/3BBq2/rQ1KB2p/3P2N1/7r b - - 0 1 illegal: No proof kernel
R2KQnN1/3N2Q1/pN6/1Q2p3/qP3P2/1rQb1k2/BrRBn1nq/2N4Q b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 g6 Bh6 g5 Bg7 fxg7 Qd8 axb3 Ba6 b4 Ng8 b5 Bc8 Ke2 Kd7 Kd3 Kd6 Kc4 c5 b4 h5 d4 e5 b6 h4 Kb5 h3 b7 h2 Nd2 c4 Ne2 c3 Nc4+ Kd7 d6 Ke6 d5+ Kf5 d7 Ke4 d6 c2 Nb6 Rh4 Bd2 Qf8 d8Q c1Q d7 Qc2 Qc7 Qe7 d8Q Qa2 Qdd7 Qa3 Qc3 Rh7 Nc1 Nh6 g8Q Ng4 g7 Rh3 g6 Ne3 Qge8 Ng2 g8N Qh7 g7 Qa4+ Kc5 Qh4 Qb5 Nd7+ Kc6 Nf8 Kc7 Bf5 b8N a6 N8d7 Rd8 Ra2 Qh6 Rg1 h1N Rc2 Ng3 Bc4 Ne2 Ba2 Re3 Qe1 Kf3 Qh4 Bd3 Qh1 Qh2 Rd1 Rb8 Rg1 Rb7+ Kd8 Ra7 Ne7 Rc7 g8Q Rc4 Qg7 Rc5 Qa1 Rc3 Ng8 Rb3 Qd4 Rb2 Qc3 Bg6 Qd4 Reb3 Qc3+ Bd3 Rd1 Kf2 Rg1 Ne1 Rg6 Ng2 Rc6 Kf3 Rc8 Qa5 Rb8 Qa4 Ra8
2r1R3/n2KQ2Q/pqQ4P/4PBk1/3NN2r/q1R5/1QR2Rpb/1bRr2B1 b - - 0 1 legal: proof: b4 b5 a4 e5 axb5 h5 c4 d5 cxd5 e4 g4 e3 gxh5 a6 b6 Rh6 b7 Bf5 b5 Bc8 b6 Rh8 fxe3 Qe7 e4 Nc6 e5 Na7 bxa7 Qd8 Kf2 Ke7 Kg3 g5 b8Q f5 d4 c5 e4 c4 h4 c3 d6+ Ke6 d5+ Kf7 h6 Kg6 d7 c2 h7 f4+ Kg4 f3 h5+ Kh6 Kf5 f2 Ke6 Nf6 d6 Qb6 Ra3 Qc5 Nf3 Qc7 Qd5 Bb7 d8R Qc6 Bd3 f1Q Rc8 Qa4 d7 Ng4 d8Q Qe1 Nbd2 Nh2 Nd4 g4 Qc6 g3 Rc3 g2 Qe7 Qg3 Kd7+ Qg6 e6 Qb3 e5 Qg3 Bf5 Qb6 Ne4+ Qe3 Rd1 Nf3 Nf6 Kg5 Rd2 Bg7 Rf2 Bh6 Ba3 c1R Bc5 Ra1 Rc7 Rc8 h8Q Rd1 Qhh7 Qd3 Rcc2 Qa3 Rc3 Kh4 Rfc2 Bf4 h6 Kg5 Rc1 Bh2 Qd5 Ne1 Nb5 Bf4 Qeg7+ Kh4 e7 Bg5 e8R Bd2 Rf3 Bc6+ Ke6 Qba5 Rf1 Rd8 Qgh8 Nd3 Qe7 Bf4 Bg1 Bh2 Qhh7 Nb4 Rf2 Kg5 Qc4 R8d3 Nd4 Be4 Kd7 Nc6 Qb2 Qb6 Qcc5 Rb8 a8R Na7 Qcd6 Rg3 R7c5 Bb1 R5c2 Rb3 Rec8 Rg3 R8c3 Rg4 Qc6 Rh4 Qc7 Rb7 Re8 Rb8 Qc6 Rc8 Ne4+
1B2r3/2Q2P1k/qB1N2q1/4BrR1/N2QN3/1KN4P/Bp2qpRn/5bBb b - - 0 1 illegal: No proof kernel
6q1/2QKp1b1/2P4b/1n1BN2R/1rBk3q/B1P1N2n/R1QqQQ1p/3B1B2 b - - 0 1 illegal: No possible last move, all moves rejected
1Kb4Q/1N2P2R/Bp1B1rPR/1N1N2p1/B2N1b1n/bN4r1/4k2n/2B3nQ b - - 0 1 legal: proof: c4 a5 h4 g5 f4 f5 g4 d5 cxd5 e5 gxf5 a4 fxe5 a3 h5 Ra5 bxa3 Ra6 a4 Qd6 a5 Qg6 hxg6 Ra8 Kf2 Kd7 Ke3 h5 Kd4 b6 e4 h4 a4 h3 e6+ Kd6 a6 c6 f6 h2 a7 Bg7 e5+ Kc7 e7 Bf5 e8B Be6 f7 Bd7 f8B Nf6 a5 Rh3 a6 Rg3 d6+ Kc8 e6 c5+ Ke5 c4 d4 c3 d5 c2 Nf3 Ba4 d7+ Kc7 d8N Bh8 d6+ Kc8 d7+ Kc7 Nb7 Kc6 Nbd2 Bb3 Nd6 Kc5 d8N Bc4 Nd4 Nbd7+ Kf5 Rc8 a8Q Ng4 a7 Nde5 Ba4 Nf3 N2b3+ Kb4 Ra2 Kc3 N8b7 Be5 Ke4 Bb5 Kd5 Bd7 Ba6 Ng1 Be7 Rc4 Qh8 Bc8 a8N Bf4 Nc7 Rb4 Kc6 Rc4+ Kb5 Rc6 Qe1+ Kd3 Nd5 Rc4 Ra1 Rb4+ Kc6+ Rb5 Bd2 c1B Kc7 Bb2 Rc1 Ba3 Rc4 Rc5+ Kb8 Rc7 Bf8 Rf7 Bc1 Rf6 Be7 Ne3 Bf8 Ng2 Be7 Nh4 Bf8 Be3 N6b5 Bf4+ Rc7 Ngf3 Rf1 h1N Bd6 Ng1 Rh7 Nf2 e7 Ng4 Rh6 Nh2 Rf2 Ne2 Qh1 Ng1 Rg2 Rf3 Rg3 Re3 Rh3 Rg3 Nc6 Ke2 Rh7 N4f3 R3h6 Nh4 Ncd4+
R2QK3/k4n2/1R6/P3QQ1n/RP1N1N1r/Q2p2Bp/2B2qnR/br1R3n b - - 0 1 legal: proof: h4 c5 e4 f5 exf5 g5 hxg5 c4 a3 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 b3 b5 Rh4 a5 Rh1 b4 axb4 Ra7 Bd3 Ra6 Bf1 Ra8 Rh4 a4 Qd6 a3 Rh1 Ba6 Qd3 Bb5 Qd1 Ba4 bxa4 Ra6 Kd2 Ra5 Ke1 Ra8 Kd2 h5 Kc3 d5 Kd4 Kd7 Ke5 Kc7 Ke6 Kb7 Kf7 e5 c4 h4 g4 d4 f4 a2 c6+ Kb6 c7 e4 c8R h3 a5+ Ka7 g6 e3 f6 e2 f5 e1N g5 Qd5+ Ke8 Ka6 f7 Bg7 f8Q Rh6 f6 Rh8 c5+ Nd3 f7 Nd7 c6 Qe5+ Qe7 Ra7 f8R Rh7 c7 Nc5 Rh2 Rb7 Nc3 Rh6 Qa4 Qe1 Rb8 Rh4 c8Q Bh6 g7 Nb3 g6 Qf2 Nb5 Ne5 Bd3 Nc5 Qa3 Nf7 Ne2 Ne4 Qf5 Ng3 Bf4 Rd7 Bc2 Nh1 Qee5 d3 Rd1 a1N Bg3 Rc7 Nbd4 Ka7 Rb6 Rc4 Nf4 Nf6+ Ke7 Rc8 g8R Nh5 g7 Bg5+ Kd7 Bf6 Rd8 Rc3 Ke8 Rb3 Rf8 Rb1 g8Q Bh8 Rc8 Bg7 Rc3 Bf6 Qgg5 Bg7 Qd8 Bh8 Bb3 Nc2 Rg8 Ne1 Bc2 Ng2 Rb3 Ng5 Rb2 Nf7 Ra2 Ng5 Qc3 Bg7 Ra4 Nf7 Qa3 Bh6 Nfe6 Bd2 Nf4 Bc3 Rgg6 Bb2 Rb8 Bc3 Rgb6 Ba1 Ra8#
1q4Q1/3KNn2/2P3RQ/1PBb2b1/B1Npr3/kB1b3B/Nnbp4/4BRN1 b - - 0 1 illegal: Other
2q3k1/Qnn2BB1/BN3p2/2B1RNQ1/1Rp2Q2/2rq1P2/1PnQb2K/nB6 b - - 0 1 legal: proof: d4 b5 c4 d5 cxd5 e5 dxe5 f6 g4 b4 g5 b3 g6 Nh6 axb3 Ba6 b4 Ng8 b5 Bc8 h4 a5 Ra3 Kd7 Qc2 Bb4+ Kd1 Bd2 Ra1 Bg5 Qb3 Ra6 Qd3 Re6 Ke1 Re7 Qd1 Rf7 gxf7 Bh6 Ra4 g5 Ra3 g4 Ra1 Bg5 hxg5 Ba6 Qa4 Bb7 Qd1 Bc8 f8B Ke8 e4 Kf7 d6 c5 e6+ Kg6 d7 h5 e7 Kf7 e8B+ Ke6 b6 h4 b7 h3 f3 a4 Kf2 h2 Kg3 a3 e5 a2 g6 Rh6 g7 Rh7 Qd6+ Kf5 e6 Qb6 d8Q Nc6 b8Q Qc7 e7 Ba6 Ne2 Na5 Qf4+ Ke6 Be3 Nb7 Nbc3 Qc8 Re1 a1N Qa7 Rh8 Rg1 h1Q Nd5 Qh7 Nb6 Qd3 Bg6 Rh1 e8Q+ Ne7 Qb5 Nd5 Bf2 Rh7 g8B+ Rf7 Kg2 g3 Bg7 Nc7 Kh3 g2 Kh2 Qa3 Qdd2 Qd3 Rh1 g1N Ng3+ Ne2 B8h7 Rd7 Nf5 Rd6 Be3 Nd4 Rg1 Ndc2 Rg4 Rc6 Rh4 Qdd7 Qba5 Be2 Bh5 Bd1 Ba6 Be2 Bd4 Qf7 Qb5 Qg6 Bg1 Kf7 Bf2 Bd1 Re5 Be2 Ne7 Na8 Qe4 Qd7 Qba4 Ne3 Qg4 Qc8 Qg5 Nc7 Qad4 Rd6 Qdg4 Rd3 Qg3 Rb3 Rb4 c4 Q3f4 Rc3 Bg1 Nec2 Bc5 Ne3 Bg4 Qb1 Bd3 Qc2 Nf5 Kg8 Bh5 Qb1 Qe1 Qd1 Bb1 Qd3 Qd2 Nec2 Bf7+
kBR2Q1R/2r4P/pb1N4/QBP3KN/r3R3/3b2BB/b1pr4/1rq1R2R b - - 0 1 legal: proof: b4 h5 f4 e5 fxe5 b5 g4 Be7 gxh5 Nh6 c4 Nc6 a4 Ng8 axb5 Bc5 b6 Bf8 b7 Nb8 d4 c6 b5 Ne7 c5 Nd5 Bh6 Nb6 Bc1 Na6 cxb6 c5 Kd2 c4 Ke1 Nc5 dxc5 Rh6 Ba3 Rh7 Bc1 Rh8 Kf2 d5 Ke3 Kd7 Kf4 f5 b8B d4 e4 d3 h4 c3 h6 d2 h5 a6 h7 c2 b7 g6 b6 Kc6 h6 Qd3 e6 Qd6+ e5 Qe7 Na3 Ra7 Qe1 d1R Ne2 Rd2 Nb5 Qf6 e7 Be6 e8R Be7 Ra4 Bd8 Bh3 Ba2 e6 Qb2 e7 Qa3 Kg5 f4 Bb2 f3 Re4 f2 Nf4 f1B Nh5 Bd3 B2e5 Qc1 Bg3 Rf8 h8R Rf4 h7 Rg4+ Kh6 g5 Nd6 Rf4 Kg6 g4 Kg5 Bc7 Re6 Ra4 Re4 Qa3 Qa1 Qc1 Qc3 Bd8 Qa5 Bc7 Ref8 Bd8 Rff1 Bc7 Rfe1 Bd8 Be5 g3 Bf4 g2 Bg3 Bc7 e8B+ Kd5 Kh6 g1R Bb5 Bd8 Bc7 Rf1 b8Q Rg1 b7 Rf1 Bc4+ Kc6 Qc8 Rg1 Bb8+ Bc7 Qf8 Bb6 Kg5 Rf1 Bc7 Rg1 b8R Rf1 Bd8 Rc7 Rc8 Rg1 Nf7 Kb7 Bb5 Rd7 Bc7 Ka7 Bb8+ Ka8 Rc6 Rc7 Nd6 Qb2 R1e2 Rb1 R2e3 Qc1 Ree1 Rd7 Rc8 Rf7 Nf4 Rc7 Nh5
N2N4/2r4b/p2r1b1k/K2Qb1N1/2PR1BB1/2QBRq2/1P1p3B/2N1Nbq1 b - - 0 1 legal: proof: h4 c5 d4 g5 dxc5 f5 f4 b5 a4 g4 axb5 Nh6 e4 Qc7 exf5 Kd8 f6 Ng8 f7 Nf6 f5 Ne4 g3 Ng5 hxg5 Nc6 f6 Nd4 Bg2 Ne6 Bh3 Nf4 gxf4 g3 f5 Qb8 Bf1 Kc7 Rh3 Ba6 Rh4 Qd8 Rh1 Bc8 Kd2 e5 Kc3 h5 Kb4 d5 c4 Kd7 b6 h4 b7 a6 b8B d4 g6 g2 g7 e4 g8B e3 Nf3 g1B Bh2 h3 Bd3 e2 Nc3 e1Q Bcf4 Qd2 Ra3 Bd6 f8Q Qc2 f7 Qg2 f6 Ke6 Ne2 Be3 Nc1 Qd7 Qg7 Qa7 Ka5 Rh6 c6 Be5 Ne1 Qf3 c7 Bb7 c8N Be4 f8N+ Kf5 f7 Rd6 Nb6 Rc8 Rc3 Rc7 Nh7 Bf2 f8N Bh4 Ne6 Bhf6 Qh8 Kg6 Na8 Kh5 Nhg5+ Bh7 Nd8 Kh6 Be6 Qc5+ Ka4 Qa7 Bg4 Qb6 Be2 d3 Rb3 Qd4 Ka5 d2 Re3 Qa7 Bd3 Qd4 Qa4 Qa7 Qb5 Qc5 Bhg3 h2 Rf1 h1B Bh2 Qa7 Qd5 Bg2 Rf2 Bf1 Rfe2 Bg7 Re4 Qaf2 Rd4 Bgf6 Re3 Qg1 Qe8 Be2 Qa4 Bf1 Qb3 Bg6 Qc2 Bh7 Qc3
3R4/2B1rBr1/KbbBRBB1/1pp3QQ/1Q1P4/PNp5/n1Q5/qNr2k2 b - - 0 1 illegal: Other
1R2nn2/3k4/1pB2R2/3p2KP/rB5p/1r1RP1Nr/2b1NQ1B/2BB1RqQ b - - 0 1 illegal: No proof kernel
1NRB1Nb1/1pB4P/n1B2r1p/q2p2qQ/1R1B1Q1Q/7K/n3Q2P/r5Qk b - - 0 1 legal: proof: d4 a5 e4 f5 exf5 c5 dxc5 e6 b4 Qe7 bxa5 Qh4 a6 Qd8 a7 Na6 g4 d5 f6 Bd6 g5 Bb8 axb8Q Qe7 Qg4 Qc7 Qd1 Qd8 Ke2 h6 Kf3 Qa5 Kg2 Qd2 Kf3 Qd4 Ke2 Qd3+ Ke1 Qh7 g6 Nb4 gxh7 Na6 f4 Kf7 Kf2 Kg6 Kg3 Kf5 c4 Ke4 a4 g5 f5 e5 a5 g4 c6 Ra7 c5 Ne7 f7 Re8 f8B Ng8 f6 Be6 f7 Ne7 c7 Bf5 c8Q Nb4 c6 Na2 c7 Rd8 a6 Ng8 Nd2+ Ke3 Rb1 e4 Qe6 Bg6 c8Q Ra8 a7 Rd7 Bb5 Rd8 Qc4 Nb4 Nh3 Rd6 Nf4 Nd3 Bg7 Rb6 f8B Ne1 Bd6 Nf6 Bc7 Nc2 Rb4 Ne8 Bc6 Bf7 Ng6 Bg8 Nf8 Ra6 Kg2 g3 Kh3 Kf2 Nb3 e3 Na5 g2 Qh5 g1Q Bd4 Qg5 Bd2 Rb6 Rc1 Ra6 Be1+ Kg1 Qeg4+ Kh1 Qgh4 Rb6 Qce2 Ra6 Bd8 Rb6 Qe5 Nc7 Qef4 Na6 Bd2+ Ne1 Rc3 Nd3 Be1 Nc1 Bg3 Na2 Rcc4 Rc8 a8Q Rb8 Qa7 Ra8 Ba4 Rg6 Nc6 Rf6 Qb6 Ra7 Nb8 Ra8 Rc8 Ra7 Qef2 e2 Bc6 e1Q Qfe2 Ra8 Qff2 Qa1 Bgc7 Qc3+ Qfg3 Qc5 Qgf4 Qa5 Qa7 Qc5 Qfe3 Nc1 Rb6 Nb4 Qaa2 Ra7 Qb1 Ra1 Qf5 Na6 Rb4 Qa5 Qff4 Na2 Qg1+
R1NK4/2R2bpR/4P2b/2N2Br1/1k5B/1bp1N1P1/1QQRR1pr/2nn1N2 b - - 0 1 illegal: Other
N7/3q2nB/pRR3Qq/qQR1B2B/1p5R/1pR1r3/qPB2kPK/2b1N3 b - - 0 1 illegal: Other
b5B1/5NBp/2B2pbR/2pP3p/Rn2PNnk/1RR5/2rQ2QB/1rR4K b - - 0 1 illegal: Other
N7/1N2N1pp/n3B3/RQ1BnKNB/p5P1/n1k2p2/2NBRrP1/4Qb1q b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Be3 fxe5 Bg5 Ra2 Bf4 Ra1 Bg3+ hxg3 Bd7 Rh6 Be6 Rh1 Bc8 Kf2 Ke7 Ke3 f5 Kf4 c5 d4 a5 e4 c4 b4 c3 d6+ Ke6 d5+ Kd7 b6 c2 g4 Bb7 e6+ Ke8 d7+ Ke7 d6+ Kf6 b5 Qe8 d8N Na6 e5+ Kg6 d7 Qf7 e7 Qe6 e8B+ Qf7 e6 Kf6 e7 Qh5 Bc4 Bf3 b7 Be4 b8Q Qh4 b6 Ra7 b7 Ra8 Bef7 Qe1 e8B Qh4 Na3 Bd3 Ne6 Bf1 d8N Ne7 Bd5 Nc6 Qe1 Na7 Nh3 Rf8 Nhg5 Nb5 Nc7 a4 Bfe6 Ra7 Bh5 Rf7 Ra2 Rf8 Be3 c1N Nc2 Na3 Na8 Rf7 Rh3 Rd7 Rf3 Qh1 Bd2 Rd6 Rb3 Rd7 Rb5 Rf7 Ra5 Nd3+ Kf3 f4 Ke4 Ne5 Bc1 Rd7 Rb2 Ke7 Kf5 f3 Qc8 Kd6 b8N Rab7 Nbc6 Rb5 Qb7 Kc5 Ne7 Rd6 Nb4 Kd4 Re2 Rc5 Qb5 Rc2 Nb7 Rd2 Bc6 Kc3 Nc2 Rd3 Re4 Re3 Bcd5 Re2 Re3+ Nd3 Re5 Rf2 Re2 Ne5 Bxd2+
2Q5/3p1NkB/2N1p3/q1P1prN1/p2N4/BQ1RnQr1/RQP3r1/1nK4N b - - 0 1 illegal: Other
2BN2Nr/2bBpp1p/1p2B3/1p5Q/kP1Qb1b1/4QB2/1BQ1P2R/1n2RK2 b - - 0 2 illegal: Other
2bn2BQ/pk1B4/5PNB/p2Q1p2/K3B2Q/Pn1RNp2/1pp2Q1q/4RQ2 b - - 0 1 illegal: Other
8/r2qQn1Q/6QQ/2N2bNK/2B2PR1/2rqnB1B/R1q2BPn/bB1kr3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 h5 c4 d5 b4 e5 c6 a5 f6 Ke6 g6 Kf5 b6 h4 b5 d4 g7 d3 c7 d2 f7 a4 b7 a3 b6 h3 c5 a2 c6 h2 Nh3 Bc5 f8Q+ Qf6 Qe1 d1Q+ Be2 Bd7 c8B Qf7 c7 Nf6 g8B Bd4 Nd2 Ra7 Ne4 Qd3+ Be3 Ng4 Nc5 Nc6 b8Q Nd8 b7 e4+ Kg3 Rh6 f4 Rc6 Kh4 Qc2 Bg1 e3 Bf3 e2 Bf2 Bh8 Qb1 e1R Qh6 Qb3 Bf7 Qbd3 Bc4 Nf7 Ng5 Bb2 Kh5 Ne3 Rg1 h1N Qa8 Be6 b8Q Bc3 Qb8b7 Ng3+ Kh4 Bd7 Rh1 Ngf1 Kh5 Nh2 Q1b6 Be6 Bd7 Bd4 Qg8 Bh8 c8B Rc7 Rd1 a1Q Rd2 Qad4 Ba4 Rc6 Qe7 Qd7 Bab3 Ba1 Ba2 Nhg4 Rh4 Nh2 Rg4 Rcc7 Nb7 Rc5 Bb1 Rc6 Bcd5 Rc3 Bc4 Q7d4 Kh4 Qb2 Nh3 Nef1 Rg3 Qc1 Ra2 Qcc2 Kh5 Qd8 Bd1 Ke4 Rg6 Q8d6 Qgh7 Q6d4 Bh4 Ke3 Bf3 Kd2 Bf2 Qd6 Nc5 Ne3 Rg3 Bd7 Ng5 Bh3 Bf5 Qd7 Qbg6 Kc1 B5e4 Be6 Bf5 Kd2 Bh3 Bf5 Rg4 Kc1 Bb7 Kd1 Bf3+
q1k1R1Q1/q3n2R/5r2/n3P2r/BRP2B1b/Q2r1B1K/1b1Bb3/R1NN2qB b - - 0 1 illegal: No possible last move, all moves rejected
2Rr1N2/k1n3b1/r1N1PN2/PnRRBQqB/1Q1nK3/3N4/R1bbN3/3qq3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 a4 c5 h4 Kc7 d4 f5 h6 b5 e6 Kb7 h5 b4 a6+ Kb6 a7 c4 d6 f4+ Ke4 c3 a5+ Kb7 h7 c2 h6 b3 d7 g4 d5 b2 e7 g3 e8N f3 d6 g2 Qe1 f2 Nc3 b1Q Nd1 Qg5 d8R Bd7 Qb4+ Ka6 Bb2 Qb5 Rh5 Qg5 Ra2 Bh3 d7 Bg4 Be5 Ne7 Nb2 c1Q+ Nd3 Nd5 Nf6 Qe1 e3 Nc7 Be2 Rg8 h8Q f1N Qh7 Bg7 Qf5 Nc6 h7 Nd4 h8N Qbd1 Ng6 Ndb5 Nf8 Nh2 Bf3 Bh3 Ne2 g1B Rc8 Bf1 d8N Bf2 Bg4 Nf3 Nc6 Nfd4 Rd8 Bg3 Rd5 Bf4 Rc5 Rd8 a8R+ Kb7 Rc8 Rh8 Rh2 Rh6 Bh5 Bh3 Qg6 Be6 Qf5 Bb3 Rd5 Ka6 Rc2 Ba4 Rcc5 Kb7 Nec1 Bb3 Ra2 Bc2 Ne2 Ka6 Ng8 Rhd6 Nf6 Kb7 Na7 Rb6 Nc6 Ra6 Bd6 Nde6 Kf3 Qg6 e4 Bd2 e5 Nd4+ Ke4 Qgg3 e6 Qg5 Nb8 Ka8 Be5 Ka7 Nc6+
B3n1N1/6k1/Q2P3q/RNKQqb2/1Bn2r2/B2B2P1/b4rN1/n1qNR1bN b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 d4 a5 b4 h5 f4 c5 g3 e4 f6 a4 d6 c4 f5 h4 d7 c3 b6 a3 b7 h3 b5 c2 b6 a2 d5 h2 Kd4 e3 Bd3 e2 Ba3 c1Q Qf1 e1N Nh3 Qcc7 Nf2 Ne7 g6+ Kg8 g7 Rh5 f7+ Kh7 g8B+ Kg7 f6+ Kh6 Nc3 Qd6 Ncd1 Qe8 d8Q Qf4+ Kc5 Nbc6 b8N Qh4 b7 Na5 Nc6 Nf5+ Ne7 Ng7 b8N Nc4 Na6 Rf5 Nc7 Rf4 Nb5 Nc2 Rg1 Ra7 Nh1 Bf5 Qe2 Ra4 Re1 Rf2 Qe6 Qh5 Qa6 Rb4 Qd7 Qb8 Qde6 Ne8 Qe5 Bg7 f8N Qg5 Qd4 Qe5 f7+ Bf6 Bh7 Kg7 Nfg6 Qh6 Nf4 Bg5 Ng2 Be3 Ng8 Ra4 Rb1 a1Q Bg6 Qb2 Ra1 Qc1 Ra2 Na1 f8B+ Kh8 Be7 Kg7 Bh5 Rf4 Bb4 Bg1 Bf3 Ra3 Bd6 Rc3 Ra5 Rc2 Ba3 Rf2 Kc6 Bg6 Bdb4 Bf5+ d6 Rc2 Nhf2 h1B Qd5 Rd2 Kc5 Rb2 Nge3 Bg2 Nh1 Rf2 Bde2 Bgh3 Ng2 Bb1 Bd3 Bf5 Bfe4 Ba2 Bf3 Qef6 Qe6 Qfb2 Ba8 Qe5+ Qd5
1nb1KN2/B1b4N/P1PR3N/R3RR1r/2BQ2rQ/6r1/1nqkqn2/R3N1q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 d5 a4 g5 f4 b5 h4 b4 c4 b3 a6 g4 a7 e6 h6 g3 h5 g2 c6 b2 a5 Bd6 h7 Be7 h6 Ba3 c5 Na6 c7 Bb4 c6 Bd2 Nf3 g1N Ne1 Qd6 Rh5 Qe7 Bc4 Nb8 Nc3 b1R a6 Qe8 Kc5 e5 Kd6 e4 Qa4 e3 Ne4+ Kf7 f6 Kg6 f7 d4 f8R e2 Qd1 d3 Ng5 Nf3 Rf5 Ba5 Be3 d2 Re5 Kf6 f5 Rb4 Qa4 d1Q+ Bd4 Bd7 c8R Nd2 Rd8 Bc8 Bb6 Qe6+ Kc7 Rb3 Rd6 Rg3 Kd8 Qc2 Qb4 Ne4 Qb2 Nc5 Qd4 Nd3 Qh4 Nb2 Qd4 Nd7 Qh4 Rb8 a8R Rb7 Ra7 Nb8 Qd4 Rg7 Re7 Na4 Ke8 Nb2 Ba7 Bc7 Qh4 Rg4 Rea5 Rg3 R5a3 Ke5 f6 Rg4 f7 Kf4 f8N Qe3 Ra5 Qg1 Ree6 Rg6 Ree5 Nf6+ Kf7 Ne4 Ke8 Rhg8 h8Q Nf2 h7 Rh6 Ne4 Rg7 Nf6 Rg5 Qg7 Rgg6 Rhg5 Rh5 Qd7 Rg8 h8N Rg7 N6h7 Rg8 Nf3 e1Q Nf7 Qee2 Nh6 Rg7 Ne1 Rg6 Be6 Rg8 Ref5+ Ke4 Bc4 Rg7 Rfc5 Ke3 Rgf5 Rg3 Qdd8 R7g4 Rcd5+ Rd4 Rde5+ Kd2 Nd3 Rdg4 Qdf6 Rg8 Qd4 R8g7 Qfh4 R7g4 Ne1+
6n1/1P1B1Rn1/K1bR1rQr/2rRq1b1/2P1N1BN/2RB1nB1/1B6/2b1k1Qq b - - 0 1 illegal: No possible last move
b1rN2kb/r1nb4/1b4NK/3N1PR1/B1P5/b2N1B1R/1B3QnB/NQ3n1q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 d5 Kf4 a5 Kg5 e5+ f6 d4 f4 g6 c4 e4 h4 a4 b4 e3 c6 d3 h6 e2 h7 e1B c7 d2 h5 a3 h6 a2 b6 Bb7 c8B Bc6 b5 Qc7 b7 Ra4 b6 Qe7 Nf3 Be4 Nc3 Bf5 Bb2 Be4 Be2 Ra5+ Nd5 Na6 b8N Nc7 b7 Bf2 Rh3 Bb6 Bd7 Ra7 Qb1 d1B Ne1 Ba4 Nc6 Bf3 b8B Qe4 f5 Ba3 Na5 Ne7 Nb3 Rc8 h8N+ Kg8 Nd3 Bc6 Be8 Bd7 Nf7 Bg2 Bh5 Qe1 Nd8 Qh1 Nc3 Ned5 Bf3 Ne3 Nd5 Nf1 h7+ Kf8 h8N Kg8 Kh6 g5 Ng6 g4 Nb7 g3 Nd8 Be6 Ba4 Bd7 Bd1 Be4 Be2 g2 Bf3 Ne6 Bh2 g1N Qc2 Nc7 Qf2 Ne2 Rd1 Be8 Na1 Bd7 Rc1 Nf4 Re1 Ng3 Rg1 Nf1 Rg5 Ng2 Ne3 Ba8 Nd5 Be3 Kh5 Bd4 f7+ Kh7 f8Q Bb6 Qb4 Kg8 Nc2 a1B Kh6 Ra5 Qbe1 Ra6 Qb1 Ra7 Bc1 Bc3 Na1 Bh8 Bb2
3K2RR/1b2nQQ1/2PN1Prn/1r4Qb/k6B/1qB5/2b1Q1bQ/bB3NBr b - - 0 1 illegal: No proof kernel
2K4n/kB1B2QP/7R/b1bNNb1B/3QrN1B/rPb1N2B/4n1Rq/nr6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 d5 Kd4 Kd7 h4 Kc7 c4 Kb7 e4 a5 e6 f5 Ke5 a4 c6+ Kb6 b3 a3 c5+ Ka7 e7 a2 e8B d4 c7 g4 h6 f4 h7 f3 b6+ Kb7 h5 g3 h6 d3 c6+ Ka6 b7 g2 Bg5 f2 Nc3 Be6 c8N Be7 c7 Bf7 Bd7 Ba3 Ne7 Be6 c8B Ka7 Bh4 d2 Nf5 Bc5 Nh3 g1B Ne3 Bf5 Nf4 Ne7 Ncd5 Re8 h8Q Na6 b8N Nb4 h7 Nc2 Bh3 f1R Bb7 Qc7+ Kf6 Bb6 e5 Ba5 e6 Ng6 Qg7 Nh8 e7 Bf2 Rc1 Na1 Rc2 Bg1 Qdg4 d1N Rg2 Nc3 Qd1 Ne2 Qd4+ Bb6 Rhh2 Rb1 Rh1 Qc2 Ke5 Bf2 Kd6 Bc5+ Kc7 Be1 Bdc6 Bb4 Nd7 Bc3 Ne5 Ba5+ Nb6 Qc1 Bd7 Qg1 Qd3 Qh2 Qd4 Rf8 e8B Rf7 N5g4 Re7 Bh5 Re4 Ne5 Nc2 Rhg1 a1B Rg6 B1c3 Rh6 Na1 Rg4 Rf8 Rg2 Rf6 Kc8 Rd6 Qd1 Rdd4 Qd2 Ra4 Qd4 Ra3 Nbd5
R2Q1n2/RRQP2rN/n4b1B/2Qn1q2/bkBr1R1b/R1r2Q2/2P4K/4N2n b - - 0 1 illegal: No possible last move
3NqN1b/2Bk1r1N/2Nn1RQ1/3bqP2/1Q1Q4/3P3b/2b1b1B1/Nr1nQR1K b - - 0 1 illegal: No proof kernel
8/b3b2N/Q1N1bR1k/B2P2Nr/rbq3BQ/1R1R1N1q/RP1nn2N/6bK b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 Kf7 h4 a5 f4 g5 Kf2 Kg7 Kg2 c5 h6+ Kh7 h5 e5 f6 a4 d6 e4 d7 g4 b6 g3 f7 a3 d5 c4 b7 e3 f5 c3 f6 a2 Be2 c2 Nf3 Ra5 Qf1 Bb4 f8R Bd6 f7 Bb4 Nh2 Be7 Bd2 c1B Bg4 Qc7 d8N e2 Nc6 e1B Qa6 Ra4 Ba5 Be6 Nd2 Bf2 Ndf3 Nf6 Rd1 Bd2 Kh1 Bdb4 Rd4 Ne4 Rd3 Nd7 b8R Ba7 Rb6 Nc3 Rfb8 Ne5 f8N+ Kg8 h7+ Kg7 R8b7 Nc4 Rb8 Ne2 h6+ Kf6 R8b7 Nd2 Rb8 Qf4 R8b7 Qc4 Rb8 Rg8 h8N Rg5 h7 Kg7 Nf7 Rh5 N7g5 Kh6 R8b7 Bbc5 Rbb3 Bb4 Rf1 a1Q Rb6 Qa3 Ra1 Qd4 Ra2 Qe4 Rbc3 Qb3 h8Q+ Qh7 Qd4 Qc4 Rb3 Qh8 Bf5 Qh7 Qh4 Qh8 Bg4 Qh7 Nf1 Qh8 Nfh7 g2+ Kh2 g1B+ Kh1 Qb8 N1h2 Qg3 Rb8 Qh3 Rf8 Ra3 Rf4 Ra4 Rf6+
b2q2Rn/PqNB2K1/B3Q1QQ/nr4R1/2Q2BP1/2r2QrB/r5r1/2b1N1k1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 b5 Kd4 h5 Ke5 c5 d4 h4 a4 e6 f4 h3 g4 h2 f6 Kg6 d6 c4 f5+ Kf7 d5 b4 a6 b3 a5 c3 a7 c2 a6 b2 d7 Qb6 d8Q Bb4 d6 Ba5 d7 Qc5+ Qd5 Qc6 Bh3 Bb4 Qc7 Qb6 d8Q+ Ne7 Nc3 b1R Nf3 Ba3 Qcc4 Bb7 Q8d6 Qd8 Bf4 c1R Nb5 Rc3 Ne1 Bc1 Nc7 Rb5 Ra5 Rh5 Rf1 h1Q Qdc6 Rb2 Qdd6 Rg2 g6+ Kf8 f7 Kg7 Qf3 Rg5 Rc5 Kh6 Kf6 e5 g7 e4 f8Q e3 Qe8 e2 g8B Nbc6 Be6 Na5 Bd7 Ng6+ Kf7 Rg3 f6 Nh8+ Kf8 Be4 Qe7 Qg2 f7 Kg6 Kg8 Rh5 Rg5+ Kh6 Nc2 e1R Rh1 Rg1 Ne1 Qb2 Kf8 R1g2 Qee6+ Kh7 Rf1 Qb7 Rg8 Rb5 Rg5 Rc8 a8B Ra3 a7 Raa2 Qf5+ Kh6 Kg8 Qb8 Bb7 Bc6 Ba6 Ba8 Rh1 Qb7 Qfe6+ Qf6 Qce2 Rb6 Re5+ Kg6 f8Q+ Nf7 Bd2 Rg1 Nd5 Rc4 Bf1 Rb5 Rh8 Rc3 Bh3 R1g2 Rf5 Rca3 Nc7 Rc3 Q6c4 Qd8 Q2e6+ Qf6 Rf4 Kg5 Be3 Qd8 Kh7 Ne5 Rg8+ Ng6 Rf5+ Kh4 Bf4 Qf6 Rg5 Nh8 Qg6 Qd8 Qfg7 Rgd2 Bg2 Rdb2 Bh1 Kh3 Bg2+ Kh2 Bh3 Rg2 Q7h6 Kg1 Kg7
Rn1b4/k1nR3Q/5B1q/2r1qBrQ/3P4/1R4rb/N1PQQRNK/3q2rQ b - - 0 1 illegal: No possible last move, all moves rejected
1r1RBnr1/b1n1Q3/qQ1R1R2/B1R1qr2/Pq1QQ3/1P1b1rN1/N2R2k1/3K4 b - - 0 1 illegal: No proof kernel
4B2N/b3NN2/1rB5/P6Q/N1n1qb1n/BNKBR1kb/q1b1R1Pn/5Q1r b - - 0 1 illegal: No possible last move
2nNqb2/1QN1rk2/1Rr2PN1/1Qb5/2bBBN2/1nrRQ3/1Qq1P1Kb/6N1 b - - 0 1 illegal: No proof kernel
3qb2Q/1k1B3Q/n1P3Q1/5N2/2NNr1r1/1RKnNq2/QP1BRQ2/n1b1r1r1 b - - 0 1 illegal: No possible last move, all moves rejected
bBn3R1/N5qR/1P1b1rk1/5r1Q/Nq1nR2R/n1Nr1Q2/1N1P2r1/2RK1B2 b - - 0 1 illegal: No possible last move
N1n1r1qn/2bQBBP1/Rq3P1b/2N5/N1Bn1Q2/BR2b1Nr/b1B2k2/3K4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 g4 a5 c4 e5 b4 h5 c6 d5 f6 Kg6 c5 d4 b6 h4 b5 e4 f7 h3 b7 d3 c7 a4 b6 e3 c6 h2 Ne2 a3 Nbc3 a2 Na4 Nh6 Ng3 e2 Ba3 Bd7 c8B Be6 c7 Nc6 b8N Nd4 b7 Bd6 f8B Nf7 Na6 Rh3 b8Q Nh8 Rb1 a1B N6c5 Ba2 Be7 Qg8 Rb3 Be5 Rg1 h1Q Qb4 Qc6 f5+ Kh7 f6 Kg6 Bd7 Re8 c8N Bc7 Ncb6 Bb2 Rg2 Bc1 Na8 Qb6 Bb5 Be3 Bc4 Nc6 Qdd2 Na7 Qb5 Nc8 Qd7 Kh7 g6+ Kh6 g7 Kg5 Rh2 Kf4 g5 Kf3 g6 Bh6 Qc3 Ke3 Qe5+ Kf3 Qef5+ Ke3 Qg5+ Kf3 Kd2 e1B+ Kd1 Bd2 Bg2+ Kf2 Be4+ Kg1 Bf5 Be3 Qf4 d2 Bb1 Rd8 Bc2 Re8 Ke2 d1N Ke1 Qh7 g8B Nc3 g7 Nb5 Kd1 Nd4 Bgf7 Qg8 Rd2 Nf3 Rd6 Kf2 Qe4 Nd4 Re6 Qb8 Ra6 Qb6 Qf4+
1QN1k3/b1q2P1K/n1b2B1b/2R1rr1Q/Q3q1n1/RB2QB1b/P7/Q1B1Nq2 b - - 0 1 illegal: No possible last move, all moves rejected
k1B3Q1/bB1r1P1P/R1BR3q/2b1BnR1/1r2Q1rN/2R3R1/bqr5/4n1NK b - - 0 1 illegal: No possible last move
Q1R3bn/Pn3NR1/R7/1rq1B2B/4B1Q1/n2nN1P1/rqR1B1rB/k3bK2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 a4 Kd6 f4 e5 f6 h5 f5 c5 a6 b5 g6 h4 a5 b4 g7 c4 f7 c3 f6 c2 a7 e4 a6 e3 Bb2 c1R Nf3 e2 Rh2 b3 Na3 h3 Ng5 Rh6 Nc2 Rh5 Ne3 Nh6 g8B Qe7 g3 Bg7 f8B Nd7 f7 Nc5 Kf2 e1N Qg4 Rd1 Be2 Rd2 Kf1 Be6 Bh7 Rc2 Be4 Ned3 Bc3 b2 B4f3 Rc8 a8B b1N a7 Nb7 Ra6+ Rc6 Rg2 h2 Be4 Na3 Rf2 Kd7 d6 Ra2 d5 Rc8 Ba1 Rcc2 Be5 Qf6 Be7 Bh8 f8Q Nf7 B4f3 Bg7 Rg2 Nh8 Nf7 Rcb2 Bd8 Rf5 Bb6 h1Q+ Rg1 Qh2 Rg2 Qe7 Qg8 Rg5 Be4 Rc2 Bg6 Qf8 Bh5 Bf6 Bc5 Bd8 Rf2 Ba5 Bb6 Be1 Bbd4 Ke8 d7+ Ke7 d8R Rf5 Rb8 Qc8 Bb6 Qc5 d6+ Kd7 Rd8+ Kc6 d7 Kb5 Rc8 Bc4 d8R Kb4 Rd6 Kb3 Rg6 Rg5 Rg7 Be6 Bf4 Kb2 Qe8 Ka1 Be5+ Rcb2 Qf8 Na5 Be4 Nb7 B2f3 Bd5 Rc2 Qd2 Be2 Qc1 Nd6 Bg8 Nf7 Qd2 Qd6 Qdb4 Qb8 Qbc3 Qa8 Rf5+ Kg2 Rf2+ Kg1 Rg2+ Kf1 Rb5 Nd1 Qf8 Bg1 Qc5 Ne3 Qb2 Bh2
5R2/K1Q3rr/nNN1kr1R/4PR1N/1BR2r2/brN3Q1/r5nP/1bq2B1N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 b4 g5 d4 f5 b6 a5 e6 g4 b5 a4 d6+ Kf6 h6 g3 d7 a3 e7 c4 e8N+ Ke6 d5+ Ke7 Kd4 a2 Kc5 g2 e4 c3 b7 f4 d6+ Ke6 e5 c2 h7 f3 b6 f2 Qf3 Be7 Qg3 Bf8 Ne2 g1R Ng7+ Kf7 Bd2 c1R+ Nbc3 Qh4 d8Q Qa4 Qc7+ Ne7 d7 Qc2 d8R Rb1 Nh5 Rb3 Rc1 a1R Rd6 Bf5 Rh6 R8a2 Be1 Nc6 b8N Nb4 Nd7 Ng6+ Kb5 Qb1 b7 Nf4 Kb6 Ng2 b8N Na6+ Ka7 Ba3 Nc6 Be4 Rc2 Qc1 Bd2 Bg6 Nb6+ Ke6 Be1 Rf8 h8R Rf4 Rf8 Rab1 Nca4 R1b2 Bb4 Rf6 Rc4 Bb1 Nac3 Rd2 Qh4 Rd7 Neg3 Rg7 Bd3 Rd1 Bf1 Rdd7 Rg1 Rh7 Nh1 Rdf7 Qg3 Rfg7 Be2 f1R Bd3 Rff2 Rf1 Rf4 Be2 Rh4 Rf5 Rf4 Bf1
RN4NK/3R1b2/5Pq1/Q1Rb2b1/NQr3PR/1n3rN1/nb1BN1k1/2b3bB b - - 0 1 illegal: No possible last move
3bnK2/1b4N1/qBPr4/3N1P1N/bQ1R4/1NRQ1rNB/5r2/1BbB1nrk b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 Kd4 a5 Ke5 h5 b4 d4 c4 d3 g4 e6 f4 d2 g6+ Ke7 g5 a4 b6 a3 b7 h4 c6 h3 g7 a2 c5 h2 f6+ Kf7 c7 Kg6 c6 Qe8 f5+ Kh7 f7 Qd7 g6+ Kh6 b5 Kg5 b6 Kh4 Ne2 Ra6 Bh3 Ra3 Ng3 Nf6 g8B Rh6 g7 Na6 b8N Nc5 b7 Qd3 Nd7 Be7 b8Q Qa6 f8N Bb7 c8N Nce4 Ncb6 Bd8 Nd5 Ne8 N7f6 Rf3 Nfh5 Rf6 Qb3 d1B Qd3 Ba4 Be3 Nd2 Rc1 h1R Rc3 Rhf1 Bb6 R1f2 Qd6 Nf1 Nd2 Rg6 Rd1 a1B Nb3 Bb2 Bf7 Bc1 g8B Rg4 Qb4 Rd4 Ndf4 Rd6 Nd5+ Qc4 Nhf4 Qb5 Bh5 Qa6 B5g4 Bc8 Nfh5 Bb7 Kd4 e5+ Kc5 e4 Ne6 e3 Neg7 e2 Bf7 e1R Rd2 Rg6 Bg8 Nf6 Kd6 Rd1 Ke6 Ne8+ Kf7 Rd6 Kf8 Nh2 Ne7 Rg1 Bd5 Nf1 Be4 Rf4 Bd1 R4f3 Bg2 Kg4 Nd5 Kh4 Qc2 Kg4 Rd4 Kh4 Qd3 Kg4 Bh1 Kh3 Bg2+ Kh2 Bh3 Be3 Qdc4 Bf4 Bb1 Bc1 Bg4 Kg2 Qe2 Kh2 Qd3 Kg2 Bh3+ Kh2 Ne4 Kh1 Neg3+
n2BQ3/nqQrrRN1/1RRBbR2/2p5/1B5K/P3r2b/4N1PR/2bBk1n1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 f4 Kd6 Kf2 b5 Kg3 e5 f6 c5 f7 h5 a3 e4 f5 e3 a6 e2 g6 e1R a7 b4 g7 b3 f6 b2 Qe2 Qe7 Rh2 Qb7 Nc3 b1B Nf3 Bg6 Qe8 Re5 Nh4 Na6 Be2 Bc2 Bd1 Bb3 Bd2 Bh3 Rb1 Rd8 a8R Rd7 Ra7 Ne7 g8R Rh7 Rg6 Bh6 f8R Nc7 f7+ Re6 Ra6+ Nc6 Rf6 Na8 Be1 Bc1 Nf5+ Kc7 Ng7 Na7 Rb2 Re3+ Kh4 Ba2 Rae6 Bb3 d6+ Kb6 d5 Ka5 Ne2+ Kb5 Bb4 Kc4 Nc3 Kd3 Rb1 Re7 d7 Kd2 d8Q Ke1 Rc6 Ba2 d6 Bae6 Qc7 Rd7 Kg5 Re7 d7 h4 d8B Rd7 Rh8 Re7 f8B Rd7 Nh5 Rhe7 Rh7 Bhg4 Rhf7 h3 Be2 Bgf5 Kh4 Bg4 Bf1 Bgf5 Ng7 Bg4 Rh1 h2 Be2+ Kd2 Bf1 Bh3 Ba5 Ke1 Rb4 Bc4 Rbb6 R7e5 Bd6 Ree7 Bb4 Bb3 Ra6 Bbe6 Rab6 Bhf5 Rg1 h1N Bb5+ Kd2 Bf1 Nf2 Be2 Nh3 Rh1 Ng1 Rh2 Ke1 Bd1 Bh3 Ne2+
4rnBn/N1K3Q1/k2rN1pP/2b2bq1/B1n3PN/Rb2Q3/5RNB/rB4B1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 f4 h4 fxe5 h3 Qc2 Bd7 Qh7 Be6 Nxh3 Bd7 Ng1 Bc8 Kf2 Kd7 Kg3 a5 Kf4 f5 h4 c5 b4 Kc7 g4 Kb7 e4 c4 d4 c3 h5 c2 d6 a4 e6 a3 Ke5 a2 d5 f4 h6 f3 e7 g6 e8B+ Qd7 b6 f2 b5 Ne7 Be3 c1N Qg7 Qd8 d7 Rg8 Kd6 Ra5 e5 Nb3 e6 Nd2 Ne2 Nf3 Nf4 Ra3 Ng2 Ra4 Rh2 Nd2 Bf7 Ra8 Bd3 f1B Bg1 Qe8 d8Q Nec6+ e7 Nf3 Nd2 Be6 Bb1 Ng5 Nf3 Bd7 Nfh4 Rh8 Bg8 Ra4 Qc8+ Ka8 Kc7 Rd4 b7+ Ka7 b6+ Ka6 d6 Bf5 d7 Bc4 d8N Na5 Ne6 Qb5 Qe8 Nd7 b8B Rd6 b7 Qd5 Ne1 Qd2 Rf2 Nf7 Neg2 Qf4 Ba7 Bd5 Bh2 Nc4 Bb6 Qg5 b8N+ Kb5 Nc6 Ka6 Nef4 Bde6 Na7 Bd5 Qb8 Bde6 e8B Be7 Bd4 Nf8 Qb3 Bd5 Qe3 Bde6 Be4 Bd5 Ba4 Bde6 Rh1 a1R Bb1 Bd5 Bh7 Rg8 Ne6 Nh8 Rhf1 Nd2 Rf3 Bb3 R1f2 Nc4 Rg3 Nd7 Rgf3 Re8 Bg8 Nf8 Qd2 Ba2 Ra3 Bb3 Qc3 Rb6 Qe3 Bc5 Bde5 Rd6 Bg1 Qh5 Bg3 Qg5 B3h2
1NR2r1k/3BB3/2R2Pnb/P1QbB3/r3p3/Q2q2BN/3rn2B/b3nKQQ b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kf7 h4 e5 f4 b5 a4 g5 d6 Kg7 d5 c5 h6+ Kh7 h5 c4 f6 b4 d7 g4 a6 g3 f5 e4 a7 g2 d6 c3 f7 b3 Nd2 b2 Ndf3 b1N Bf4 c2 Nh3 c1B Bb5 Bg7 f8Q Na3 Bh2 Bd4 Ne5 Ne7 Nc6 Na6 Nb8 Bce3 Rc1 Nb1 Rc6 Qb6 d8B Rg8 d7 Bg5 Bdc7 Bh8 d8B Bd7 Bcg3 Ng6 Qc5 Ba1 Be7 Kh8 h7 g1R+ Ke2 Rg2+ Kf1 Ra2 Rc8 Be8 Bd7 Bh6 Qdd4+ Qf6 Qg1 Qd4 Rc6 Nb4 Rc8 Kg7 h8B+ Kh7 Bhe5 Rd2 f6 Nc2 Rc6 Nc3 Rc8 Bf7 Rc6 Bg7 h6 Rf8 Rc8 Kg8 Rc6 Bd5 h7+ Kf7 h8Q Ne1 Qh5 Kg8 Qf3 Bh6 a5 Ne2 Qfa3 Qd3 Qgf2 Rd8 Qcb4 Nh4 Rb6 Rf8 Nc6 Rae8 Nb8 Nf4+ Kg1 Kh8 Qf3 Bb7 a8Q Rc8 Qa7 Ne2+ Kf2 Neg2 Rc1 Ba8 Kf1 Ne1 Qh1 Ng6 Rd6 Bb7 Qag1 Rc4 Ra6 Rd4 Rc8 Bd5 Qc5 Ra4 Rac6
r1b3B1/2Q2K1b/P5Bp/5n1n/BPNBN2Q/2R1Rn2/kQ1QB1rb/3qr3 b - - 0 1 illegal: No possible last move, all moves rejected
8/P1rPpnBN/KbRN4/2r1n1Bq/b1B3R1/1B3n1B/1N2k2b/Q1Nr3Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 b5 a4 c5 g4 h5 f4 h4 d6 b4 Kc4 b3 Kb5 b2 d4 c4 d5 c3 g6+ Kf6 g5+ Kg7 d7 c2 a6 h3 a7 h2 a5 Rh3 f6+ Kh8 f5 Rh7 f7 Kg7 f6+ Kh8 a6 Nh6 d6 Nf5 Ra4 Nh6 Ne2 Rg7 Bh3 Nf5 Nbc3 b1N Rg4 Nh6 Na4 Qe8 Nb2 Nd2 Nf4 Bb7 Nfd3 Nc6 d8N Ne5+ d7 Rc8 a8Q Ndf3 a7 Bc6+ Ka6 Rc7 Nb7 Ba4 Nd6 Rg8 g7+ Kh7 Be3 Kg6 Qa1 Kh5 g6 c1B Bg5 Bf4 Rc1 h1R Rc6 Bh2 Qb7 Rh8 g8B Bg7 f8N Rd1 Bc4 Nhf7 Nh7 Bh6 g7 Rg8 Bh4 Be3 Bg5 Rh8 g8B Bb6 Nf8 Rh6 Nh7 Rg6 Bh4 Rg5 Bb3 Rf5 Bg5 Rf4 Qa8 Rc4 Qb7 Rc5 Qa8 Nh6 Bgc4 Qg6 f7 Qf5 f8B Nhf7 Rg1 Qg4 Bg7 Qh4 Bg2 Kg4 Qh8 Qh5 Qa8 Nd4 Bh3+ Kf3 Rg4 Ke2 Qg8 Nh8 Qd5 Nhf7 Qh1 Ndf3 Nc1+
2R3qr/4QBQR/kBr1B3/1nN1b1qB/1pR1nbN1/7R/4r1PP/1B1b3K b - - 0 1 illegal: No proof kernel
k4R2/b1Nqq1QB/4NN2/6Pn/6RQ/2rPnR2/rp3K1N/Nrb1B1Rb b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kd7 a4 e5 g4 h5 f6 b5 f7 c5 a6 Kc7 a7 Kb7 d6 h4 a5 b4 a6+ Kb6 g6 c4 g7 h3 f5 e4 f6 b3 d7 h2 g5 e3 Na3 b2 Qg4 e2 Nc2 c3 Qh4 Kc7 Kf2 e1R Nf3 Rh6 Ra3 Ne7 g8N Nf5 Bd3 Nd4 Rg1 h1Q Na1 c2 Bh7 Bb4 f8Q Qe7 d8N Qh3 f7 Qhd7 Nf6 Bb7 Nh2 Bh1 Rf3 Nf5 d3 Ne3 Bd2 c1B Qg7 Bc5 f8R Rd1 Be1 Bd4 Nfg4 Rc6 Nf6 Rc3 Rg4 Bd2 Rg1 Rb1 Ne6+ Kb6 Rg4 Bc1 Rg1 Nc6 Rg4 Ne5 Rg1 Ng6 Rg4 Rb8 a8R Nf4 a7 Kb7 Rg1 Re8 Rc8 Bc5 a8N Nh5 Nac7 Ba7 Ra8 Rc8 Nce8 Ra3 Rg4 Ra2 Rg1 Rc7 Rc8 Rc3 Rc4 Kb8 Rcg4 Ka8 N8c7+
R1n1q3/Nb4b1/1BB2N2/5PNn/NQ1rR2n/1p1k1N1q/1r3P2/KbBQ3B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kd7 Kd2 Kd6 Kc2 b5 Kb2 h5 a4 e5 g4 c5 g6 e4 a6 c4 g7 e3 a7 b4 g5 e2 a5 e1N a6 b3 g6 h4 Nc3 h3 Ne4+ Kd7 d6 Kc6 d7 Kd5 Ng5 h2 N1f3 Qc7 d8B Qg3 Bb6 Rh4 Bg2 Nf6 g8N Nh5 g7 c3+ Kb1 Kc4 d5 Qg4 d6 Nd7 Nf6 Bb7 g8N Rd8 a8B Qh3 a7 Bg7 Ne7 Rd4 Nc8 c2+ Kb2 Be4 Bc6 Bd3 Rg1 h1B a8N Re8 Ra5 Re2 Na7 Rd2 Ra6 Be4 Ka1 Kd3 Bd8 Nb6 d7 Nc8 Bb6 Rc4 d8Q+ Rd4 Bd7 Bb7 Qe7 Be4 Qb4 Bb7 Nh2 Nf3 Bc6 Nh4 Bgd5 Bf3 Rg4 Be2 Bh1 Bf3 Qe1 Be4 Nhf3 Re2 Nc7 Rd2 Ncb5 Re2 Nc3 Rd2 Ba3 c1Q+ Nb1 Ng3 Nb5 Nh5 Ra8 Kc2 Na7 Bd3 Qf1 Qe1 Bc1 Qe8 Nc3 Be4 Na4 Bd3 Qe7 Re2 Re4 Rd2 Nb2 Kc3 Qf8 Bb1 Na4+ Kc2 Qe1 Kd3 Qb4 Rb2 Qd1+
qn5Q/2Nk1bb1/rq3B1N/B1qrP1Rn/5b2/3p2Q1/QRQP1QB1/1B5K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qa5 c4 Qc7 c5 Qd8 Kf2 g5 Kg2 d5 e4 f5 c4 a5 h4 g4 c6 d4 e6 f4 c7 g3 e7 a4 b6 a3 b7 a2 c5 Be6 c8Q Rh7 c6 Bf5 c7 Na6 b8Q Nc5 h6 Ra6 h5 Rc6 Na3 Nd7 Qdb3 Ne5 Nf3 Nd3 Nh2 Rc4 Rg1 f3+ Kh1 f2 Bg2 f1Q Rb1 a1Q Ng4 Be6 Nb5 Qc3 Bb2 Qf3 Qa2 Bf7 Qf5 Rb4 c8Q Qc5 Bc3 Nf6 Rb2 Ra4 Ba5 Nf4 e5 Rh8 h7 Qa8 h6 N4h5 Qf2 Nd7 Qa7 Rg8 h8Q Nb8 h7 Bg7 Nh6 Ra3 Qcf5 Qdb6 Qc2 d3 Nc7+ Kd7 e8B+ Kc8 Bb5 Rd8 Bc4 Kd7 Qa6 Ke7 Qc8 Rd5 Qcg8 Ra4 Qa3 Kd7 Ba2 Rg4 Bb1 Ra4 Qa2 Ra3 Bc3 Ra6 Ba5 Nf4 Bf3 Bf6 Qg5 Bg7 Qg8 Nh5 h8B Bf8 Bf6 Bg7 Qh8 g2+ Kh2 Qc3 Rd1 g1B+ Kh1 Bh2 Rg1 Qc4 Qge3 Qc3 Rg5 Bf4 Bg2 Qcc5 Qeg3
NB5K/2N3n1/1Bq1NrP1/Q2Pbb1N/2R4B/N1nq1r1r/5p2/nB1k2QR b - - 0 1 illegal: No possible last move, all moves rejected
n1r1B2B/R1R4k/r1N1P1N1/2B2BNq/6Q1/1Qq1b1r1/b1P2p2/2NbNKn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 e4 d5 h4 a5 b4 g5 b6 f5 c6 Kf7 c7 Kg7 h6+ Kh7 b5 d4 e6 g4 h5 d3 e7 g3 e8B g2 e5 f4 e6 f3 b7 a4 b6 a3 Nc3 a2 Ba3 Be7 Bc5 Nf6 Nce2 Ng8 Nc1 Nc6 b8N Nd4 b7 Ra6 Nc6 Ne2 b8Q Qd5 Qb3 Bb7 c8N Nf6 Nd6 Nd7 Nf7 Bg5 Rh4 Be3 Rc4 Nb6 Rc3 Kg8 h7+ Kg7 Rc4 Na8 h6+ Kg6 Rc3 Qh5 Rc4 Rg8 h8N+ Kh7 Ng6 Rf8 Nce7 Bd5 Nc6 Kg8 h7+ Kg7 h8B+ Kh7 Nh3 g1R Nhf4 Rg3 Bh3 d2+ Kf1 f2 Ng2 Ng1 Qg4 d1B Ne1 Rg8 Bg2 Rf8 Be4 Rg8 Bf5 Rf8 Rb1 a1Q Rb2 Rg8 Ra2 Qc3 Ra3 Rb6 Ra7 Ra6 Rb4 Rf8 Rbb7 Rg8 Rc7 Rf8 Qb5 Ba2 Qb3 Rg8 Bd7 Rb8 Be8 Rc8 Ng5+
1q3n2/Qqr3n1/2QpQ3/1B1N3B/RR1qBB2/2P4K/nPk3Q1/1b1r1BbN b - - 0 1 illegal: No possible last move
B1b1q1Qr/2R1n2n/RRPQ1B1q/1N1q2b1/1p1P1k1B/Rr1N4/B4bR1/2K5 b - - 0 1 illegal: No proof kernel
2b1r1q1/rBQRkN2/2pnP1r1/q2QN2N/B7/1B1nP3/R3NBbb/1N1K4 b - - 0 1 illegal: No possible last move, all moves rejected
2kq3Q/3n2QK/1p6/B1b5/bR2RrP1/1q2Rr2/1QP1Q1QN/RBNr2nn b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 e5 Kd3 h5 Ke4 b6 f4 d6 g4 Kd7 a4 h4 g6 h3 g7 h2 c6+ Kc7 a6 Qd7 f6 Qf7 f5 Qa2 a5 Rh3 f7 Rh7 a7 Rh4 f6 Rh7 a6 Rh5 Nc3 Qa3 Bd2 Kd8 c7+ Kd7 Nce2 Qh3 Nf3 Rh7 Kf5 d5 Kg6 d4 Ba5 e4 Nc1 e3 Qe2 Nh6 g8R Bc5 f8Q d3 f7 d2 Qg7 d1R f8Q+ Nf7 Qb2 Qg3 Qfg7 Rh3 Re8 Qh4 Rb1 Qd8 Re4 Rg3 Rg1 h1N Nh2 Rf3 Kh7 Bb7 c8R Bc6 Ra1 Ba4 Rg3 Rf4 Rc6 Rf3 Rf6 Kc8 Rff4 Nd7 Rb4 Rb8 a8Q Nfe5 Rfe4 Rf4 a7 Nf3 Qd5 Ng1 a8Q Rf3 Qde5 Rf4 Qg2 e2 Rge3 e1Q Bc4 Qc3 Ba2 Qb3 Qa6+ Rb7 Qae2 Rc7 Qef6 Rc6 Qfe5 Rcf6 Bb1 Rf3 Qe8 R6f4 Qeh8
B1k2b2/q2qQ1QB/P7/2qR2Bb/2RP1n2/Nn1N4/R1RRrpBK/1r1r4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg2 g5 a4 f5 h4 c5 e4 b5 d4 b4 d6 f4 e6+ Kc6 d7 Kb7 h6 f3+ Kh2 g4 h7 f2 h5 b3 e5 b2 e7 c4 e8Q c3 a6+ Kc7 a7 c2 e6 Qh4+ Nh3 Nh6 d8R Bb7 a5 Qe7 a6 Qh4 e7 Nc6 Na3 b1R Bg5 c1Q Ra2 Ng8 h6 Na5 Rd5 Nb3 Bg2 Qc5 Qg1 Nf6 Qf7 Qh5 e8B+ Kc8 Qe7 Qf7 Nf4 Nh5 Nd3 Nf4 Ba4 Rb8 a8B Rd1 Bb5 Rg8 h8R Qe6 h7 Qd7 Rd2 Rg6 Rg8 Re6 h8R Re2 Rh5 Qa7 Rc5+ Bc6 Rcc2 Rb7 Ra2 Bf3 Bc6 Rb5 Be4 Qc5 Bh7 Qca7 Qe1 Rb4 Rf1 g3+ Kh1 Na1 Bh6 Re4 Nb2 Kb8 Qf6 Rc1 Rg7 Qa4 Rc7 Qd7 Rd5 Bh5 Bf3 Re3 Bg5 g2+ Kh2 Rb6 Nd3 Rbb1 Ra5 Nb3 Rc4 Re8 Bfc6 Kc8 Qg7 Re4 Rdc2 Re3 Qb4 Re2 Qbe7 Rce1 Rf5 Rec1 Rd1 Qc5 Rdd2 Rd1 Re5 Qca7 Kg3 Qc5 Bf3 Qa7 Rd5 g1Q+ Bg2 Qh1 Bf1 Qf3+ Kh2 Qg4 Bh3 Qgd7 Bg2
2Q1r2N/Q1N1nRbp/3qBqNb/3Q3b/1B4r1/P5n1/K1NP1qQ1/RQk5 b - - 0 1 illegal: No possible last move, all moves rejected
2r3q1/Qn1bR2p/1N3BQN/7q/BPrbQ3/2PbQ3/1kRnR1R1/1n3QK1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 Kf7 f4 d5 Kf2 a5 b4 e5 c6 a4 c3 d4 c7 a3 f6 Ke6 f5+ Kd5 f7 e4 f6 a2 g6 d3 g7 Kc4 b6 Bd6 f8Q Be5 f7 Ra5 b7 Bd7 c8R+ Qc7 g5 Ra7 g6 Be8 Nf3 e3+ Kg1 e2 Bg5 e1N Qc1 Kb3 Nh2 d2 Bb5 d1B Bf6 Nd3 Qe7 Bc2 f8Q Qa5 Qe3 Nd7 b8Q Ne1 Ba4+ Kb2 Nd2 Rc7 Rc1 a1Q Qba7 Qa2 Ng4 Bd3 Rh2 Rc4 Nh6 Bd4 Qe4 Qh5 Rc7 Nc5 Re2 Nc2 Re7 Na3 Qf7 Nb7 Qf8 Rc5 Qf7 Nb1 Nc4+ Ka1 Nb6 Bd7 Qc4 Qb3 Qb5 Rc4 Qbf5 Qa2 Qf1 Qb3 Be5 Nf6 g8Q Qa2 g7 Qb3 Qe6 Rhc8 g8R Qa2 Qg6 Ne4 Bf6 Nd2 Qge4 Kb2 Rgg2 R4c7 Q6g4 Qg8 Qgg6 Rc4 Rc2+
KNB1qnq1/1R2nQpR/1Br1PQ2/4Nr1R/1kbn3q/b2R2PN/6R1/6N1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 f4 h4 fxe5 h3 Qc2 Bd7 Qh7 Be6 Nxh3 Bd7 Ng1 Bc8 Kf2 Kd7 Ke3 c5 Ke4 a5 h4 c4 d4 c3 b4 c2 b6 a4 b5 a3 h5 a2 b7 f6 b6 Ra5 h6 Ra4 g3 Bb4 d6 Kc6 d7 Kb5 Kd5 f5 e4+ Ka5 e6 f4 e7 f3 e8Q f2 e5 Bf8 e6 Qe7 d8R Rc4 Na3 Rc3 Nc4+ Kb4 Qf7 Kb3 Qhf5 Rf3 h7 Re3 Q5f6 Rd3 Rh5 Qc7 Be3 c1N Ne5 Rc3 Ba6 Nd7 b8N f1Q b7 Bc5 Bf2 Qa5 Kc6 Qc4 d5 Nf8 d6 Qh4 d7 Kb4 Rb1+ Nb3 Rb2 a1Q Bd4 Rc1 Rg2 Rf1 Bf2 Be7 Bb6 Rf5 Kc7 Bc5 Kc6 Ne7+ Kc7 Rg8 h8R Qb2 R8h7 Qa4 Nbc6+ Ka3 Kb8 Nd4 Ka8 Qbb3 Nb8 Kb4 Nef3 Qd5 Nh3 Qd6 Nfg1 Qc7 Re8 Qd8 Nc6+ Kc3 b8N Nfg6 Ne5 Nf3 R7h6 Ba3 Rg5 Kb4 Rgh5 Rh8 Rh7 Bb7+ Ka7 Bd5 Rg8 Ba2 Ka8 Bc4 Re8 Qc8 d8R Rg8 Rd1 Nd4 Rd8 Re8 Rd6 Rd8 Rc6 Rd6 Rdd2 Qg8 Rc7 Nf8 Rd3 Qe8 Bc8 Rc6 Rb7
n1r2QN1/1N3rpP/Rk3Prb/7N/3RR1nK/1b3q2/2Q1BR1N/q1B1R2q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 d4 c5 f4 Kc7 Kf2 a5 Kg3 e5 h4 a4 d6+ Kb6 d7 e4 h6 c4 h5 e3 d5 e2 d6 e1R h7 a3 f6 a2 f7 c3 h6 c2 f5 Qe8 d8N Qe5+ Kh4 Bd7 f6 Bg4 d7 Qd6 Nd2 Bf5 Ne4 Be7 f8Q Kc7 Nb7 Ra6 d8R Qd2 b6+ Kc6 Nf3 Qf2+ Ng3 Ra4 Nh2 Qg2 Rd4 Nd7 Be2 Bc5 Nh5 Qf3 Qd3 Rd1 Re1 Be6 Qc3 Ra6 Re4 Bb3 b5+ Kd5 Qb2 Ra7 Qc3 Be3 Qb2 Ne7 Qb1 Rg8 h8N Nc6 h7 Bh6 Nf7 Nce5 Qb2 Ng4 Qb1 Bf4 Nh6 Rh8 Ng8 Bh6 Bg5 c1Q Qc2 Qb1 Bc1 Rd4 Na5 Rb4 b7 Nb6 b8R Rf7 Nb7 Na8 b6 Rc4 Rd8+ Kc6 Rdd4 Rc5 Qd3 Rg5 Qd1 Rg6 Qc2+ Bc4 Na5+ Kb5 b7 Ka6 b8R Qb7 Rb1 a1Q Rb2 Qc6 R8b5 Bb3 Nb7 Qh1 Ra5+ Kb6 Rba2 Qcc3 Rf5 Qd3 Rf2 Qdf3 Ra3 Qb2 Qb8 Bf4 Nh6 Qa1 Ra5 Re8 Ng8 Ref8 Qe8 Bh6 Qe7 Rd8 Qf8 Rc8 Ra6+
2b5/2k2P2/r1qR3n/rbbB1n1K/P2Qn2R/B3p2R/RBQ1B1R1/q1N3N1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 g5 Kg4 c5 h4 b5 f4 e5 a4 b4 d4 e4 h6 b3 h5 c4 d6 b2 f6 c3 f7 e3 d5 c2 h7 Ra6 f5 Qe8 f6 Bh6 f8R Bb7 f7 Kd8 d7 Bg7 h6 Rb6 a6 Bc3 a7 Ra6 a8B Bc8 Nd2 b1B Ba3 c1Q Nb3 Nc6 Rh3 Nd4 Be2 Kc7 Qc2 Nf5 d8R Qc6 Rd6 Bd4 Kh5 g4 Ra2 g3 Rh4 Qf1 Nc1 g2 Re8 Bc5 Red8 Nge7 Rg8 Qe1 Rg3 Ng8 Rgh3 Qc3 Rg6 Qa1 d6+ Kb8 d7 Kc7 d8R Ra5 Nf3 g1N Rdd6 Ra6 Rg2 Ra5 Rhh2 Nh3 Ng1 Nf2 R2h3 Ne4 Bb7 Qe8 Bd5 Qc6 Qd2 Bd3 Qd1 Nge7 Qc2 Rd8 h8B Ng8 h7 Bb5 Bhb2 Ngh6 h8Q Rg8 Bf3 Rg6 Qd4 Qe8 Rd8 Rga6 Be2 Qc6 Rd6
3q2bb/k2rQP1n/2B1N2R/6pr/1KRqP3/BQr3B1/QN3Q1q/4Bn1B b - - 0 1 illegal: No proof kernel
1r2nBBq/3Q1p1B/1B2R2R/1bnnbNq1/R5NP/2B1QKR1/qr4P1/1k6 b - - 0 1 illegal: No proof kernel
nBq3N1/n4p1B/3Q3K/kBN4B/1n1bb1rP/BR2QQP1/q1rq1R2/4Q3 b - - 0 1 illegal: No proof kernel
2Qr2N1/2KRP1n1/1QNrb1n1/1qN1Qn1k/1b2R2Q/1P2NprB/q2BQ3/8 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Ke3 c5 Ke4 a5 h4 a4 d4 f6 b3 Kf7 d6 a3 Kd5 c4 e4 f5 b6 f4 e6+ Kf6 b7 f3 e5+ Kf5 d7 Kg4 h6 a2 h7 c3 h5 c2 e7 Nh6 Kd6 Qe8 d8N Qa4 e6 Qc4 d5 Nd7 b8Q Ba6 Nd2 Qd4 Rh4+ Kf5 Bh3+ g4 Ne2 Kg5 Nc6 g3 Nc3 g2 Kc7 g1R e8N Ba3 e7 Qc5 d6 Nf7 h6 Rg3 Qb6 Nf6 d7 Nh5 d8Q Qb5 Na4 Ne5 Re4 Bc8 Nc5 Ra6 Qe2 Bb4 Nf6 Be6 Ng8 Ng6 Qc8 Ng7 Nf1+ Kh5 Bd2 c1N Rb1 a1Q Ne3 Qa2 Rb2 Qa1 Rc2 Qb1 Rcc4 Qa2 Rcd4 Nd3 Rd7 Nf5 Rdd4 Ndf4 Rd7 Kg5 Nf6 Re8 h8Q Rd8 Ng8 Nh5 Qe5 Ng7 h7 Kh5 h8Q+ Kg5 Na7 Bd5 Qbb7 Rd6 Nc6 Be6 Qh7 Nf4 Qh4+ Kg6 Qhf6+ Kh5 Qb6 Ng6 Qh4+
1R2QNK1/1nQqP1N1/Q4kr1/2bB4/P1B3bR/r1B1b3/1p3nBq/4Q1qQ b - - 0 1 illegal: No possible last move
k1Q1q1N1/n2bP2p/4RR2/4q2n/1RBR1Br1/r1P3n1/qb1K1NB1/3RB1Q1 b - - 0 1 illegal: No possible last move
b3Q1R1/1RKPBQ1n/Q3B3/3PpQ1r/N1k4b/n1Bq2N1/3Bq1rn/2Qq4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 g5 Kc4 c5 h4 a5 d4 e6 f4 g4 b4 a4 f6 g3 b6 a3 Kb5 a2 b7 g2 h6 c4 h7 c3 h5 c2 f5 Ne7 d6 Nec6 d7 Ra6 h6 Qe8 d5 Nd8 Ne2 g1Q Bh3 Ra3 Bd2 c1Q Nbc3 Qe1 Kb6 Bc5+ Kc7 Qf1 b5 Bf2 b6 Ra8 Ng3 Nbc6 b8Q Qe2 b7 Be1 Qa7 Qd3 b8B Ne5 Rb1 a1N Qa6 Bb7 Rg1 Nc2 Na4 Nf3 Bg4 Rg8 h8B Nh2 h7 Na3+ Qc2 Bc6 Rb7 Qd1 Qc1 Rg5 Ba7 Rh5 Bc5 Rb8 Be7 Bf2 Ra7 Rb2 Rb7 Be1 Bg7 Ra2 h8Q e5 Bc3 Rg2 Bh6 Qg8 Bhd2 Ne6+ Kb6 Nf8 Kc7 Nh7 Bh3 Qgg4 Qha8 Nf8 Qe8+ Kg8 f7+ Kg7 f6+ Kg6 Ne4 Nh7 f8Q+ Kf5 f7 Bh4 Ng3+ Kg6 Rb8 Qge2 Be6 Ba8 Rb7 Qde3 Bd6 Kg5 Be7+ Kf4 Qg7 Kf3 Qgg8 Q3d3 f8Q+ Rf5 Nh1 Ke4 Qgg7 Rh5 Qgf7 Qb5 Ng3+ Kd3 Qf5+ Kc4 Qf8f7 Qd3 Nf1 Rf2 Rg8 Rg2 Ng3 Q3e2 Qb6 Qb1 Qd6 Qbd3 Qa6+
1B6/B1PnN2K/qp2BP1Q/1b3NB1/7q/n1bqRQQr/4QrR1/1Bb4k b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 c4 g6 h4 e6 a4 d4 h6 d3 h5 d2 c6 Ra6 c7 Ra7 h7 Na6 c5 Nb8 a6 Nc6 a5 Qe7 h6 Bd7 c8B Nd8 c6 Qe8 Ra2 Qf7 Ne2 Be7 Rh3 Bf8 Re3 Ra8 a7 Be8 a6 Qe7 Ng3 Nf7 Bd3 Nd6 Qe2 d1Q Nc3 Nc4 Bb1 Qd3 f3 Rb8 a8Q Na3 a7 g5+ Kg4 e5 f4 e4 Be6 Bd7 Kh5 g4 Rc2 Rc8 Qb8 Bg7 a8Q Rf8 Qa6 Qed6 Qf3 Rf7 Rg2 Be8 Qb5 Bd7 Qb2 b6 Qbe2 Qa6 Bd2 Qdd3 Bc1 Ke7 Kg6 Nf6 Qg8 Kd6 Nd5 Kc5 Ne7 Kd4 Qb8 Be8 Bd2 Nd7 f6 Rff8+ f7 Bf6 f5 Bg5 Nh5 g3 Ng7 Bf6 Rg1 g2 Qbg3 Rhg8 h8Q Be5 Re1 g1B h7 Bf2 Rd1 Bf4 Rh1 Be1 Rh2 Bh6 Rg2 Bg5 Bb4 Bc3 Bd6 Bh6 Bb8 Bf4 Ba7 Bh6 Qh5 Bg5 Rf3 Bc1 f6 e3+ Kh6 Ke4 Ngf5 Rg7 Qh1 Rfg8 f8B Rg4 Qg7 Rf4 Q7g6 Rg7 h8B Rg8 Bhg7 Rh8+ Kg5 Rh3 Bh6 Nb8 Qh7 Bd7 Kg6 Be8+ Kg7 Nd7 Qd2 e2 Bg5 e1Q Qh6 Qf2 Kh7 Qd4 Nc8 Qda4 Bd6 Q4c4 Nce7 Qd4 Rf1 Rf2 Bdb8 Qda4 c7 Q4c4 Qgh2 Kf3 Re1 Qh4 Q2g1 Nc5 Qgh2 Bb5 Qd6 Nd7 Re4 Qg3 Re3+ Kg4 Rh2 Qh4 Qb7 Rg3 Qe2+ Rgf3 Rg2+ Kh3 Rg3+ Kh2 Rg2+ Kh1 Qbc6 Rg3 Qcf3 Rh3 Qdg3
RN1NQ1Kn/P2bqN2/QP2b1Q1/kB1n4/1q1N1pQ1/1r1r1r2/3b2Q1/1RB5 b - - 0 1 illegal: No proof kernel
N2N1rQ1/PP1q1BB1/1q2r1QK/1bN5/1pnN4/3Q1Nb1/5RR1/Qqn1kn2 b - - 0 1 illegal: No proof kernel
5K2/B1b1rQ2/1k1BRB2/p1n4b/bPB1n1r1/2qN4/1PNBb2Q/Q1R1Qb2 b - - 0 1 illegal: No proof kernel
kb1QNNN1/Q3Bb2/K2p1R2/1P1b3b/2q1BnRr/2RR2N1/1n1r1bP1/N7 b - - 0 1 illegal: No proof kernel
1r1R1N2/5NnP/1r2RR2/3bR3/kr2n2r/bqpRN2P/B1rN1B2/Q4QK1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 f4 a5 Kf2 c5 d4 g5 b6 e5 d6 Kc6 h6 c4 h3 Kb5 f6 g4 h7 a4 f5 e4 d7 a3 d5 a2 d6 Na6 f7 Ra7 b7 Ne7 b8Q+ Rb7 f6 Nc7 Nc3+ Kc6 b5+ Kb6 Qa8 Ng8 Nf3 g3+ Kg1 g2 Nd2 e3 Nd5+ Kc5 b6 Kb5 Bb2 e2 Ne3 e1R Bd4 Ne8 Qf3 Qe7 d8N Qe6 d7 Re2 Re1 Ba3 f8R a1R Nf7 c3 d8R Ng7 Rd6 Qa2 Re6 Qb3 Qf2 Rb8 b7 Rb1 Qf4 Kb4 Rd8 Rf2 Bc4 Rb2 Ba7 Ka4 Rd3 Re2 Re5 Be6 Qf1 Bd5 Rh2 Rf2 Re6 Rf4 Re2 Rc2 Rh1 Rd8 b8R Rd6 Rd8 Rb6 Rf2 Rh4 Rf5 Qb5 Ba2 Qb3 Rfe5 Rbb4 Nh6 Rb6 f7 Nf6 f8N Rhb4 Nf7 Ne4 Kh2 g1R Rf6 Rg4 Ree6 Ng3 Kg1 Rh4 Rh2 Bc4 Re2 Rg8 Qh1 Ne4 Qa1 Bd5 Qg2 Rb7 Qgf1 R7b5 Rg2 Rb6 Rg5 Rh8 Rge5 Qc4 Rb8 Ng3 Nd7 Rb7 Nd1 Qb3 Bf2 Ne4 Ne3 R7b6 Rc8 Rd8 Nf8 Re8 Rc5 Ra8 Rc8 Rab8 Rd8
3rRr2/1PR2N2/Qbq1nNP1/1bnNRR2/6Q1/3R2nK/npk4n/4B1NB b - - 0 1 illegal: No proof kernel
2B3N1/3r2Rn/1Q1Qr2n/N1K1kr1N/5bb1/P1nP3p/2nQ1QN1/BRqN4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 c5 Kc4 e5 g4 h5 f4 h4 f6 e4 d3 e3 a6 e2 a7 e1N g6+ Ke8 f5 Kd7 f7 Kd6 g5 b6 a3 Na6 f6 Bh6 f8Q+ Qe7 g7 Ng2 g6 Rh7 f7 Bh3 Ne2 Nf4 Bb2 Bg5 Rg1 Nb4 Qd2 Nh6 g8N Re8 a8Q Nc2 g7 Bg4 Bh3 Ng6 Qa7 Bf4 Nbc3 Ke5 d6 Qg5 Nf6 Re6 g8N Rg7 Kb5 c4 Nd1+ c3 d7 Rh7 Qb4 Nf8 d8N Rg7 Qa6 Nh7 f8Q Rd7 Kc4 b5+ Kc5 Bh2 Nh5 Bf4 Qba5 b4 Rb1 b3 Ba1 b2 Q6b6 Nb4 Qaa7 c2 Nb7 c1R+ Kb5 Rcc6 Na5 Nc2 Qac7+ Rcd6 Kc5 Rf6 Qcc6 Rde6 Qg2 Rf5 Qf2 Bh2 Nef4 Bg3 Bg2 h3 Bb7 Bh2 Ng2 Bg3 Qdb4 Qc1 Qbd2 Bf4 Bc8 Nf7 Ne1 Bf3 Rg7 Bg4 Ng2 Nh6 Nc3 Qd1 Rc1 b1N Qe7 Nd4 Qf8 Qc2 Rh1 Qb2 Rc1 Nc2 Nd1 Nc3 Rb1 Qc1 Qfd6+
nrn1bKQR/b4B2/1q2Q3/2k3NR/4N1P1/1npBB1B1/Pn1br1RR/1R6 b - - 0 1 illegal: No possible last move
rN3rB1/1K1k1bB1/1b2N1B1/3N2n1/Np2n1n1/2bRBNq1/1P1QP1b1/4R2Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 b4 c4 Qd7 cxd5 Qb5 axb5 Rh6 Nc3 Rh7 Nb1 Rh8 Kf2 f5 Kf3 c5 h4 g5 d4 a5 h6 a4 b6 c4 d6 c3 d7+ Kd8 b7 c2 d5 a3 h5 f4 Ke4 a2 h7 g4 e6 f3 e7+ Kc7 e8B f2 d8N g3 h6 g2 d6+ Kb6 Kd5 Be7 d7 Kc7 Bg6 Bg5 Nc3 Na6 b8N Bf4 Nb7 Nc5 d8N Be5 Rh3 Bf5 Rb1 a1Q Rd3 Qa7 Bd2 c1B Qc2 Kc8 Kc6 Be6 Bg5 Bcf4 Qd2 Be3 Re1 Nf6 Bf4 Rf8 h8B Ng4 h7 Bg8 Bg7 B3d4 h8Q Bc4 Nd7 Qb8 Qh1 Bf6 Bg5 Qg3 Be3 Ba2 Nb8 Be6 Nf3 g1N Nh4 Nh3 Bg2 f1B Bd5 Ng5 Nf3 Nce4 Nc5 Bg2 N5a4 Bb6 Bb3 Bg8 Bbf7 Bfd4 Nd5 Bc3 Ne6 Qf4 Bh7 Qg3 Bfg6 Bf7 Bg8 Nh2 Nef4 Kd8 Kb7 Ng4 Ne6+ Ke8 Na6 Kd7 Nb8+
4n2n/1B1k1NQ1/brN1NRrb/1rRb2P1/4N1P1/3bN1Bq/Q1Qp3Q/3K4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 e4 a5 b4 d5 c4 h5 g4 f5 e6 f4 e7 a4 b6 a3 b7 d4 c6 h4 c7 d3 e5 h3 c5 h2 c6 a2 b5 f3 b6 Rh7 Qb3 f2+ Kd1 Bd7 c8Q Ra5 c7 Ra8 Bg2 f1B Nf3 Rh3 Nc3 Rh4 Bf4 d2 Ne4 Bc4 Bg3 Ra7 Ne1 Bg7 Rc1 a1R Qa2 Bde6 Rf1 h1B Nc2 Rh5 Rf6 Rb1 Ne3 Nd7 b8Q Ra5 Qcb7 Ba6 c8Q Bf5 Qcc2 Bh6 Q7a7 Bh7 b7 Rb6 Qbc7 Rh2 b8N Rab5 Nc6 Nf8 Qcb8 Ng6 Bf3 Rb7 Bg2 Kd7 e8N Qc8 N8d6 Nh8 Nf7 Qc7 Bf3 Qd6 Qd4 R7b6 Qda1 Qa3 Qc7+ Ke8 e6 Bg2 e7 Qb3 Nc5 Bd3 Ne6 Rh5 Qce5 Kd7 e8N Rh3 Ned6 Bh1 Rf5 Nf6 Ne4 Ne8 Qb8 Rh2 Qg7 Rf2 Bg2 Qc3 Rc5 Rf6 Rf5 Rg6 Rf6 Bc4 Bf3 Bg2 Qf4 Bgf1 Bh1 Bd5 Qf2 Bd3 Qh2 Qa5 Qca4 Qb4 Rc5 Qc3 Q4c2 Qe5 Bf2 Qg3 Be1 Qh4 Bg3 Qh3 Nb4 Nd6 Nc3 Bb3 Bb7 Ne8 Ne4 Bd5 Nc6
Q5KB/N7/B4N1P/R2RR2N/nrbNbb2/rN2pqP1/b4nR1/2r1k2Q b - - 0 1 illegal: No proof kernel
4b2R/3RR3/r1PQ1Nbn/2Ppb1Q1/k1BQ2RB/2KQ1RNr/3n3q/3b1r2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 h5 g4 d5 c4 Kd7 b4 a5 e4 f5 g6 a4 g7 a3 b6 Kc6 e6 h4 g5 h3 e7 f4 e8R f3 e5 a2 b7 h2 b5+ Kd7 e6+ Kc7 b6+ Kc6 g6 f2 e7 Rh4 Ne2 Rh6 Nbc3 Qc7 Ng3 Bh3 Rd8 Be6 e8R Na6 b8Q Nb4 b7 Ra5 Nce4 Ra6 Qa7 Bg4 b8Q Nc2 Re7 Ne3 Rdd7 Rh3 Nf6 Nh6 g8R Bg7 Kc3 Bh8 Bd3 Nf1 Bg5 Nd2 g7 f1B Bh4 Bf5 Rf8 Bg6 g8Q Be8 Qg5 Be2 Rb1 a1R Rb4 Bg4 Rf1 h1B Rf3 Bf5 Qd8 Bfg6 Qc2 Bg7 Rh8 Rf1 Be2 Bg2 Qd3 Bh1 Qab8 Qf4 Qbe5 Bg2 Qed4 Qc7 Nfe4 Be5 Nf6 Qb8 Rf4 Bf3 Rb3 Qc7 Rg4 Rf2 Bf1 Bd1 Be2 Rf1 Ra3 Kb7 Rb3+ Ka7 c6+ Rb6 Qe4 Qb7 c5 Nc4 Kd3 Ka6 Rc7 Ka5 Qd6 Ra6 Rcd7 Ka4 Rc3 Qb2 Qef5 Rf4 Bf1 Qh2 Rb3 Be2+ Kc2 Rf2 Rf3 Bd1+ Kd3 Be2+ Kc3 Bd1 Be2 Rf1 Qe4 Ka5 Qee3 Nd2 Bc4 Ka4 Qd3
r3b1N1/2r5/1BpN2B1/1N2Pn1B/1Q3KB1/rq2Nn1R/5P1k/Q1nNR1bn b - - 0 1 illegal: No proof kernel
N2b1Q2/1Q3R2/1p2r3/Prn2Qk1/Bq5N/1n2B1bb/2bP1Bn1/R2Q1QKB b - - 0 1 illegal: No possible last move
rbRbRB2/3Q1bPP/NB1p1nQ1/5rr1/3KNQq1/B2Q2r1/2B5/1kB2n2 b - - 0 1 illegal: No possible last move, all moves rejected
3kBK2/rRbPB3/4r1B1/2R2NbB/P3n3/bqQb3Q/2B1pN1n/nN2N3 b - - 0 1 illegal: No proof kernel
K2b1B1N/Q1p1bRq1/4Q3/rrP1R2P/kB4Q1/N4rQr/n2nB3/2B2b1Q b - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kd3 d5 Kd4 Kd7 h4 a5 f4 g4 b4 a4 c4 a3 h6 a2 f6 g3 e6+ Kd6 f5 g2 f7 Qe8 b6 Kc6 e7 Be6 f6 Ra6 b7 Bf5 b5+ Kb6 h7 Ka5 Kc5 d4 b6 d3 Nf3 g1R Ng5 d2 Be2 Ra8 Na3 Nc6 b8Q Na7 b7 Rg3 Re1 Bh6 f8B Qf7 e8Q Nc6 Qe6 Qg7 f7 Bh3 h5 Nf6 Qbc8 Rf3 b8Q Bf1 Qcb7 Rg8 h8Q Nb4 Qbe4 Rh3 Qh1 Ra6 Rb1 a1B Qa7 Na2 Qb3 d1R Qg3 Rd4 Qh7 Rd8 Q7e4 Rd3 Q4g4 Ka4 Bd6 Rd8 f8B Rb8 Nf7 Bg5 Nh8 Ra5+ Kc6 Rb5 Bb4 Ne4 c5 Rf3 Rb3 Nd2 Re3 Bd8 Re5 Nc4 Rd1 Bc3 Rd7 Bd2 Rf7 B2g5 Be1 Bge7 Bb4 Nb6 Kb7 Nc4+ Ka8 Nd2 Qd5 Nb1 Qdd7 Nd2 Qde6
kB1n2b1/r1p1b3/PN2N3/1N2NRb1/2Q2rRR/qBrn2RP/r3R2Q/6K1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 a4 g5 f4 e5 Kf2 b5 f6 e4 f5 g4 h6 b4 a6 b3 h7 b2 d6 Kc6 f7 Qf6 d7 Ne7 d8N+ Kb6 d5 Ka7 a5 Bb7 d6 Nbc6 d7 Nd5 Ra3 Nb8 Be3+ Qd4 f6 Rg8 h8Q Nb6 Qc2 Bd5 Nc3 b1R Nf3 g3+ Kg1 g2 Ne6 Qd3 d8R Be7 f8R Nc6 f7 Rb5 Rde8 Rb3 Ne5 Rg4 Rg8 Nd8 f8R Rf4 Rg4 Rb2 Be2 Ra2 Nb5+ Kb8 Qc5 Nd7 Rf5 Ra7 Qc4 Nc5 Bd1 Ka8 Bb3 Qc3 Bf2 e3 Qh5 e2 Qh3 Rb7 a7 e1B Be3 B1h4 Qg3 Rb6 Bd4 Rc6 Bf2 Kb7 a8N Nd3 Ba7 Bhg5 Bb8 Ra6 Nb6 Ra7 h3 Qb4 Qh2 Qd6 Ra4 Qa3 Nc8 Ka8 a6 Bc6 Rg8 Be8 Rg3 Bf7 Rh8 Bg8 Rh4 Rc2 Rb4 Rc3 Ra4 Qb2 Ra2 Qa3 Re2 Bgf6 Rgg4 Qc5+ Re3 Rd4 Reg3 Nc1 Kf2 g1R Nbd6 Qa3 Nb5 Rg2+ Kf1 Ra2 Rhg1 Re4 R1g2 Nd3 Kg1 Bg5 Re2 Rf4 Nb6+
1q3QQ1/2q2Q2/B3BR1B/RQ1rnr1b/3b1b1P/n1B1Q3/pN1K3P/1k3N1b b - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 fxe5 h4 axb5 h3 gxh3 Bb4 h4 Bf8 e4 Kd7 d4 c5 b4 a5 b6 f5 b7 g5 b5 c4 d6 Ke6 b6 f4 d7 g4 Ra2 g3 Qf3 a4 Nc3 g2 Qe3 f3 Nge2 g1B Nd1 f2+ Kd2 a3 Ng3 Bd6 Nb2 Na6 b8Q Rh5 b7 Nf6 Bh3+ Ng4 Nf1 Qc7 d8Q Nb4 Qf8 Rf5 Ra1 Nc2 d5+ Kd7 Qg8 Ra5 e6+ Ke7 Qba7 Kf6 b8B Ke5 e7 Bb7 e8B Qd8 Bc7 Qb8 Bb5 Ba8 Ba6 c3+ Kd1 Rc5 Ba5 Bc7 d6 Rd5+ Ke2 Bb7 d7 a2 d8Q Bd6 Qdf8 Na3 Rb1 c2 Bad2 Bc6 Qaf7 Bc7 Bb4 Ba8 Bcd2 c1Q Ba5 Qc3 Rc1 Qc6 Rc5 Bd6 Bab4 Qcc7 Ra5 Bc6 Qc5 Bb7 Qb5 Kd4 Bh6 Bf4 e5 Ke4 e6 Ne5 e7 Bc6 Ne3 f1B+ Ke1 Kd4 e8Q Be2 Nf1 Bh5 Bc3+ Ke4 Qee6 Bd4 Rg1 Ba8 Rg6 Bc6 Rf6 Ba8 Nc4 Kd3 Nb2+ Kc2 Bg4 Kb1 Qee7 Nc6 Qe3 Ne5 Ke2 Rd8 Ke1 Bh1 Kd2 Rd5 Bh3 Rg5 Bhc8 Rf5 Be6
q1Brq1N1/2RNRN2/2q3q1/k1B5/1QBpr2P/1b1P2nQ/3N1K2/1n2Bb1B b - - 0 1 legal: proof: b4 h5 f4 e5 fxe5 b5 g4 Be7 gxh5 Na6 a4 Kf8 axb5 Qe8 b6 Qd8 c3 Nb8 b5 Bb4 cxb4 Ke8 e4 f5 h4 g5 b7 d5 h6 Kd7 e6+ Kd6 h7 a5 e5+ Ke7 b6 c5 b5 d4 Qf3 f4 Qh3 a4 Ba3 g4 Bc4 g3 d3 g2 Nd2 f3 Ne4 Nc6 b8Q Na5 b7 Nf6 b6 Re8 h8N Nb3 Kf2 Nd2 Re1 Nb1 Nf7 Nh5 Nf6 Ng3 Bb4 a3 Ng8+ Kf8 Rc1 a2 Be1 a1Q Qd6+ Re7 b8B Ke8 b7 Bd7 Ba7 Ba4 b8N Bb3 Nd7 Qb8 Nfh6 Kd8 Nf7+ Kc8 Rc3 Kb7 Rc2 Re8 e7 Rd8 e8B Qa3 Be6 c4 Qb4+ Ka6 Bc5 c3 Bc4+ Qb5 Re2 c2 e6 c1Q e7 Rab8 Re6+ Rb6 Rc6 Qc3 Rc7 Re6 Nde5 Qcc1 Bc6 Qa5 Nd7 Re4 e8B Qh6 Ba8 Qc6 Ndf6 Qa4 Bd7 Qa5 Bce6 Qaa4 Bc8+ Qbb7 Re7 Qe8 Nd7 Qc6 Qc3 Kb5 Bc4+ Ka4 Rh2 Qb8 Bab7 Qa8 Bd5 Qb5 Bb4 Qaa6 Rh1 Rf4 Bd2 Qba5 Ke1 Nf5 Qc4 f2+ Ke2 Ne3 Nf3 Nf5 Rc1 g1Q Be1 Qgg6 Nd2 Qc5 Be6 Qa8 Bh1 Re4+ Kf3 f1B Kf2 Qc7 Qc3 Kb5 Bd6 Qcb7 Qb4+ Ka6 Rc7 Ng3 Qc3 Kb5 Bc5 Qc6 Qc4+ Ka5 Bd5 Bd1 Qb3 Bc2 Bc4 Bd1 Qb8 Bb3 Qb4#
1Nn1QQ2/1Brqb1b1/2Q3N1/K4N2/2p1Qb2/1R1PB3/2P2Nkq/QnbR2r1 b - - 0 1 illegal: No possible last move, all moves rejected
B3B3/NR1nbBK1/1b3B2/r1B1QQP1/rP5N/Rp2k2N/b4Nq1/1n1q2b1 b - - 0 1 illegal: No possible last move
2n3B1/1BnBN2Q/B1qP2Rr/1q3PQR/2pn4/B2QNnr1/1b2b2Q/4k2K b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 c5 f4 e5 Kf2 h5 g4 b5 Kg2 h4 d6 e4 d5 e3 g6+ Kf6 d7 e2 d6 e1Q a6 b4 g5+ Kg7 a7 b3 a5 b2 a6 Qde8 d8Q Qf7 Nf3 Rh5 Na3 b1N Qd3 Qfe8 Nc4 Qc3 Ba3 Ne7 Nd4 Nd2 Ne3 Rh6 Nc6 Nf3 Rg1 h3+ Kh1 h2 f6+ Kh8 f5 Bg7 f7 Qa5 Bb4 Qb5 Ba3 Bb2 g7+ Kh7 f8Q Bb7 Qc7 Nc8 Ne7 Bd5 Qf7 Qec6 Qh5 Bc4 g8B+ Kg7 g6 Kf6 g7 Ke5 Rg6 Kf4 Qd1 Be2 Qd3 Nd7 Be6 Ndb6 g8B Nd5 Bd7 Rb8 Qd8 Nc7 a8B Rb7 a7 c4 Bg2 Rb6 Bb7 Ra6 a8Q Rb6 Re6 Kg3 Qa7 Kf2 Rg6 Ra6 Ra2 Ke1 Qg5 Ra4 Ba6 Rb4 Qf8 Rb3 Qff6 Ng1 B2d5 Nf3 Qh8 Rc3 Qh7 Rb3 Qad4 Rc3 Qdf4 Rb3 Kg2 h1N Qh2 Ng3 Be4 Bd1 Ra1 Ne2 Kh1 Ned4 Rc1 Rc3 Rc2 Be2 Rd2 Qcc5 Beb7 Qcc6 Rc2 Bd1 Rg2 Be2 Rg4 Rb3 Rh4 Rh5 Ng4 Ne5+ Qe4 Rg3 Ne3 Rh6 Rh5 Nef3 Qd3
1r3q2/Bnk1q2R/1bP1pn2/n1P1Q2B/RR2n3/2RK1N2/1QRBN2B/1b2r3 b - - 0 1 illegal: No possible last move, all moves rejected
bQ3qb1/BR3B2/PPR2bb1/5R1k/2r1BB2/B2r1qRK/2pNn2Q/2n3N1 b - - 0 1 illegal: No proof kernel
KB2rr1N/5pk1/Q3n3/1Q3PR1/B4R2/1RnqRRqb/1NnQP1Q1/1n5b b - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 c4 h4 cxb5 h3 a4 Be7 a5 Nc6 gxh3 Nb8 h4 Bc5 h5 Bb6 axb6 Qh4 Qd6 Qf6 Qd1 Qd8 Kd2 Kf8 Kd3 g5 Kd4 c5+ Kd5 a5 f4 c4 h4 a4 f5 c3 b7 d6 h6 a3 e6 c2 b6 g4 b5 a2 h5 g3 h7 g2 h6 Ra3 e7+ Ke8 Nc3 Nc6 b8Q Ne5 b7 Nd3 Kc6 d5 b6 d4 Rh5 Be6 Na4 Nf6 Nh3 g1Q Bg2 Nf2 Nb2 d3 Qg3 d2 b8R Bc4 Kb7 Rd3 Ka8 N2e4 b7 Nd7 Rg5 Nc3 Bc6 Bd5 Nf4 Nb1 Ng6 Bg2 Ba4 Bh3 Qg2 Rf8 h8R Re3 h7 Re5 Qe1 d1B Bf4 c1N Qd2 Bc2 Rg8 Re6 h8Q Be4 Qh6 Qe3 Bd6 Qg3 Nh8 Bc6 Rg4 Nc5 Rf4 Re3 Rg5 Ne6 Rc8 Re5 Bb8 Re4 Rc7 Qdd3 Rd7 Re3 Rd5 Re5 Rb5 Bf3 Qg1 Bh1 Qg2 Nc3 Rb1 Nb3 Rbf1 a1N R1f3 Nc2 Qg6 Nec5 Qa6 Ne6 Qc1 Nd2 Qe1 Ndb1 Qd2 Kd7 e8R Re4 Re7+ Kd8 Rb3 Re3 Rd7+ Ke8 Rd8+ Ke7 Rdd4 Re5 Rde4 Kf6 Ree3 Rd5 Nd1 Rdd8 Nb2 Rde8 Rfe4 Qdd6 Ref4 Nd8 Bc7 Ne6+ b8Q Qd3 Bd6 Nd8 Qbb5 Ne6+ Qc8 Bg4 Bb8 Bh3 Rh5 Kg7 Qca6 Kg8 Rg5+ Kh7 Ng6 Kg7 Nh8+
2b5/1bq1p1K1/5R1N/2rBN1QN/B1P1N2Q/n4P2/Bb1qnrkB/2N1Rb2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 a5 Kf4 d5 g4 h5 b4 a4 b6 h4 b7 d4 b5 d3 g6+ Kf6 c6 a3 g5+ Kg7 f3 h3 c7 a2 b6 h2 Ne2 d2 Nbc3 Rh3 f6+ Kh8 g7+ Kh7 g6+ Kh6 f7 Kh5 Ne4 Kh4 Qe1+ Rg3 Ke5 d1B Bf4 Ra6 Nc1 Ra4 Bc4 Kh3 Bd5 Nh6 g8N Ra8 g7 Nf5 Nh6 Ra3 g8B Na6 b8N Rb3 b7 Rg5 Nc6 Nb4 b8N Rb2 Qh4+ Kg2 Re1 h1B Bh2 Be2 Nd7 Bg7+ Ndf6 Bea6 f8Q Bab7 c3 Bh8 Qg7 Rf2 Nh5 Nc2 Rb1 a1Q Rb6 Na3 Bgf7 Be6 c8B Qb2 Bd7 Qd2 Ba2 Qc8 c4 Qd8 Bde8 Bec8 Bd5 Qd7 Qf6 Qd8 Bd7 Qc7+ Ke6 Nd4+ Kf7 Ne2 Ne5 Bg7 Ba4 Rf5 Neg4 Rg5 Qf4 Bb2 Rf6 Rf5 Kg7 Re5 Be6 Rc5 Qhg5 Kh3 Bf7 Bg2 Ne5 Bf1 Qgh4+ Kg2 Bd5 Be6 Qf5 Bec8 Qfg5+
BK3RBr/2n1p2N/1P1k1BQ1/1rRN4/Q1nBbQ1n/3qn3/1B1P4/1Q2q1b1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 c5 Ke4 a5 g4 h5 f4 c4 b4 a4 f6 h4 d6 c3 Kd5 a3 g6 c2 g7 a2 f7 h3 f5 h2 g5 Qa5 f6 Qb6 g6 Ra7 Bg2 Ra3 Bb2 c1Q Nc3 Qf2 b6 Ba6 b7 Rh3 b5 Rb3 Nf3 Rh5+ Ng5 Rb4 Qa4 Qe2 Rf1 Nh6 g8Q h1N g7 Rhh4 Nh7 Qce1 Rc1 Nc6 b8Q a1N Kc5 Ke6 Kb6 Na7 Kc7 Nc2 d7 Na3 d8B Bb7 Nd5 Ng4 Rc5 Nc4 Rf2 Bc6 Qb6 Q2f1 Kb8 Nge3 Bc7 Qfe2 Bce5 Ng3 Bed4 Kd6 Qb7 Qd3 b6 Ne4 Qc8 Bb7 Qf5 Ng5 Qg6 Ba8 Qh8 Bc6 g8B Bh6 f8B Nf3 Bg7 Rb5 Rf1 Bg5 f7+ Bf6 f8Q Rh5 Nc7 Be4 Nd5 Nh4 Rf2 Rb3 Bh1 Nb5 Rf3 Nc7 Rf2 Ne6 Rf4 Bg5 Bgf6 Nc7 Rf3 Bf4 Qfh6 Bh2 Qf4+ Ne5 Qhg7 Rb5 Qg1 Rh6 Q7g6 Rh5 Qf1 Bg1 Bg2 Qee2 Qb1 Qe1 Bh3 Rh6 Bd7 Rh5 Bc6 Rh6 Ba8 Rh5 Ng5 Rh8 Nh7 Qdf1 Bg7+ Kd7 Qfg5 Qd3 Rf8 N5c4 Bgf6 Kd6 Qf4+
3B3n/7N/nr3Bb1/2q3pB/BkQQ1NP1/2q4B/1n1P2Rb/Kb1NRq1N b - - 0 1 illegal: No possible last move, all moves rejected
Q1Q1KB1N/rB2P3/nQN3Rq/3b3N/p1N5/5q1Q/PNq4R/1kbb1nn1 b - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 c5 fxg5 c4 h4 c3 bxc3 Nh6 c4 Ng8 c5 Qf6 Bd2 Qb6 Bc1 Qd8 g6 a5 g7 b5 g4 Bb7 h5 Ra6 g5 Rg6 hxg6 Bc8 Kf2 Ke7 Ke3 Ke6 Kf4 d5 e4 f5 c4 h5 c6 a4 c7 b4 c5 b3 c6 h4 Nh3 b2 Nc3 b1N Rh2 d4 Ba6 d3 Ba3 d2 Qb3+ Qd5 Nd1 Bc5 Qb6 Nc3 Bb7 Qd3 Nb2 Bf2 Bf8 Bd4 Rg1 Bd7 c8Q Ne7 g8N d1B g7 Bc5 g6 Qc2 Kg5 f4 Nh6 f3 g8N f2 g7 f1Q Nf7 Ned5 Kg6 Qf3 Ne7 Na6 g8Q Rh7 c7+ Bd6 Rg4 Ne2 Nc6 Ng1 Nh8+ Rf7 Qh7 Ba3 Qa8 Ne3 c8N Nf1 Nd6 Bc8 Ndc4 Re7 Nf2 h3 Nh1 Rf7 Ng3 Rc7 Nh5 Bd7 Bc8 Ra7 Bb7 Be8+ Kg7 Bf7 Rg3 Kd7 Rg6 Bd5 Rhg2 h2 Qh6 h1Q Rh2 Qh3 Qhe3 Qg4 Qh3 Qf5 Qc5 Qg4 e6+ Kc7 e7 Qgf3 Nd3 Bc1 e8Q Qe3 e5 Qh6+ Kf6 Qf3+ Ke7 Qcd2 N4a5 Qc2 Qd6+ Kb6 e6 Kb5 Qec8 Qb1 Qdd8 Qc2 Nb2 Kc5 Ke8+ Kb5 Ne7 Kb4 Nec6+ Kc3 e7 Qe2 Qhe6 Kc2 Qh3 Kb1 Nac4 Qc2 Qb6
2B1bB2/2r3Qn/K5n1/nn5p/2kRN1rQ/4PRnP/1B1B3q/1NNBN2q b - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 cxd5 Be7 g3 Bg5 fxe5 f4 Qb3 f3 Qd1 Bf4 gxf4 Ba6 Nh3 Bb7 Ng1 Bc8 b4 Ke7 d4 a5 Kd2 c5 Kd3 g5 Kc4 h5 b6 f2 Kb5 c4 h3 c3 e3 c2 f5 a4 d6+ Kf7 d5 g4 e6+ Kf6 e7 Ke5 e8B g3 d7 g2 f6 a3 b7 a2 f7 Qe7 d8B Nc6 b8N Qd6 f8B Ra3 Nd7+ Ke4 Bd2 c1N Nf6+ Ke5 Ne2 g1N Ne4 Bd7 Bf6+ Kf5 Bb2 Qg3 d6 Na5+ Ka6 Ke6 b5 Kd5 b6 Nf3 b7 Rc3 b8N Rc5 Nc6 Nd4 Ne5 Qh2 Nf3 Rc7 Ne1 Nd3 Nc1 Ne5 Qg4 Nf6 Be2 f1N Qg7 Ng3 Rf1 Nh7 Bd1 Nb5 Rf3 Rg8 Bg6 Bc6 d7 Kc4 d8Q Be8 Bf5 Ng6 Qh4 Na7 Nbc3 Nb5 Rb1 a1Q Bc8 Qa4 Ra1 Qc2 Nb1 Qh1 Bdb4 Qcg2 Bd2 Qf2 Ra3 Qfh2 Rd3 Nh8 Qe5 Rg4 Qg7 Ng6 Rd4+
5b2/K2Np2B/1rQq1q1N/2b1r3/3bNk2/Q3PPbR/NQb1R3/2nQB1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1k5n/rB2nB1R/3r1B1p/1qB2nPP/1NqQRK1R/5R2/4b1B1/rQN4n b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 d5 d4 Bh6 e3 Bg7 dxc5 d4 Bd2 d3 Bc1 Bd4 exd4 Qd5 Na3 Qd7 Nb1 Qd8 Kf2 Kd7 Kg3 Kc7 c4 f5 h4 e5 b4 a5 h5 d2 d5 e4 c6 e3 g6 a4 d6+ Kb6 c5+ Ka7 c7 e2 g7 e1R b6+ Kb7 b5 h6 d7 a3 Kf4 a2 g4 Ra3 g5 Ree3 c6+ Ka8 b7+ Ka7 Ne2 Re6 Bg2 Ne7 g8B Qe8 d8B Ra6 Bf7 Rh7 Nbc3 Rd6 Ba3 Nd7 b8R Nf8 Nd5 Ra5 Rf1 Ba6 c8B Rg7 Rb1 a1Q c7 Qa2 Rb4 Qc2 Re4 Qc4 Qa4 d1N Bb7 Nf2 c8R Nh1 Nc1 Qd7 Rf3 Nfg6+ Ke3 Qe8 Rc7 Nh8 Kf4 Qd7 Qd1 Rh7 Bb4 Ra1 Ba3 Qdc6 Bc5+ Qb6 Qd4 Rg7 Ke5 f4 Nb4 Rh7 Rd7 Rg7 Rc8 Rh7 Rc6 Kb8 Rcc7 Qa5 b6 Qab5 Rc6 Nc8 Bf6 Ne7 Rf1 f3 Kf4 f2 Rcc7 Ng3 Rh1 f1N Rh4 Ngf5 Rc6 Rd5 Rce6 Rd6 Re3 Nh2 R6e4 Nf1 Rf3 N1g3 Qe3 Qa5 Be8 Qc3 Nba2 Nc8 Bd5 Be2 b7 Nh1 Qd4 Qc4 Rc7 Qb6 Bec6 Ka7 b8Q+ Ka6 Ba8 Qa5 Qb1 Qab5 Rb7 Rhd7 Rb8 Ra7 Rb7 Bd1 Be6 Be2 Rh7 Nce7 Bc6 Rdd7 Bf7 Rd6 Bd7 Kb7 Nb4 Ka8 Bc6+ Kb8 Bb7
B2r1n1n/Rq3kpN/1q1RqBP1/5PQ1/r2B2nK/Bq1QN2N/b3B3/7N b - - 0 1 illegal: No possible last move, all moves rejected
1Q2nN2/R2KnR2/3Q3r/3R1rpq/1nk1nQP1/1Q4NP/Rq2R3/4bqBB b - - 0 1 illegal: No proof kernel
N5R1/1K1Q1n2/1b2k3/1QqrBqp1/1qbb3P/R3RNP1/2B4q/R3QRnQ b - - 0 1 illegal: No proof kernel
3kbnB1/1R2B2R/4r1r1/3Q1pn1/BPqn1K2/5P2/qr1B1BNr/1QQ1QN2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 Ke2 a5 Ke3 f5 b4 h5 g4 c5 f3 e5 b6 e4 g6 h4 d7+ Ke7 d6+ Ke6 g5 a4 b7 a3 g7 h3 g6 c4 d5+ Kf6 Ne2 c3 Nd2 a2 Qe1 h2 Kf4 Nc6 b8B Nge7 g8Q c2 g7 Qa5 d8B e3 d7 Ra6 d6 Nd4 Bb6 Rh3 d8Q Bd7 B8c7 Be8 d7 Qd5 Qb8 Qc4 d8Q Rh5 Qdd5 Ng6+ Kg3 Ke7 Qc8 Nf8 Nf4 e2 Ng2 Nde6 Bf2 Ng5 Qe4+ Re6 Kf4 Rh6 Be5 Reg6 Qd5 Re6 Qcc6 Rhg6 Bd6+ Kd8 g8B Ref6 Nb3 Re6 Bd2 c1R Qcc5 Rb1 Qcc6 Qa6 Qcc1 Rb2 Qeb1 Qd3 Nd4 Qa6 Nc2 Qb5 Nce3 Qc5 Qed1 e1N Bb5 Nc2 Ba4 Nd4 Nf1 Qc3 Rg1 h1R Qe1 Rh8 Rh1 Qd3 Rh7 Qc4 Rb7 Rh2 Qd3 Rc2 Rb1 a1Q Rb2 Rc3 Qdb1 Rb3 Rc2 Qa2 Rc3 Qe2 Rcc7 Rb2 Rh7 Qec4 Be7+
2q1q3/1RpB2Qr/1N3Pnn/2P3Rq/1n1KR1B1/1BN4k/rbB5/1nQ1B1R1 b - - 0 1 illegal: No possible last move, all moves rejected
2N1Rnq1/6b1/3K4/1Q3RQ1/rPNpbBb1/2NPb2B/nN6/1BNBn1kn b - - 0 1 legal: proof: h4 b5 e4 g5 hxg5 f5 exf5 b4 c3 b3 axb3 Nc6 b4 Nd4 b5 Nc6 b6 Nb8 b4 a5 b5 c5 Qc2 Ra6 Qd1 Ra7 Rh6 Rc7 Qg4 Rc6 Qd1 Rd6 Rh2 Rd4 Rh1 Rb4 cxb4 Bb7 Qf3 Ba6 Qd1 Bc8 Ke2 Kf7 Kf3 h5 Ke4 d5+ Ke5 e6 f4 h4 g4 d4 g6+ Ke7 d3 a4 g7 h3 f6+ Kf7 g5 Kg6 f7 a3 b7 c4 f5+ Kh7 f6 Kg6 b6 h2 Qg4 c3 Ne2 c2 Bh3 a2 Re1 h1B Nbc3 Bc5 f8N+ Kf7 Nd7 Kg6 f7 Ne7 g8B Nf5 f8Q Be7 Nc5 Ng3 N5a4 Bc5 Qf1 Bf8 Nb2 Rh5 Be3 c1N Qg1 Rh6 Qf5+ Kh5 g6+ Kh4 g7 Bg2 Bf7 Nh1 g8B Bc6 Bh5 Nd7+ Kf4 Bf3 b8N Bg7 Qb5 e5+ Kf5 e4 b7 Ra6 Nc6 Qf8+ Ke6 Ra4 b8N Qd8 Bd2 e3 Na5 Bcb7 Bgf7 Qg8 Nbc6 Nf8+ Kd6 Bc8 Rb1 a1N Bd5 Nc2 Ne7 Bb7 Bb3 Na2 Nac4 Bbd5 Rbd1 Bb7 Nc1 e2 Qe3 Kg3 Qeg5+ Kh2 Nc8 Ba8 Rf1 e1B B5g4 Bh4 Rde1 Bf2 Re8 Ne1 Bc2 Bae4 Bb1 Bg1 Be3 Bd1 Rf6 Bf2 Bf4+ Kg1 Rf5 Be3 Bg2 Bdf3 B4h3 Bh5 Bf3+ Bg4 Bd1
5k2/R1nb1Q2/8/2NQ2Kb/PqBpP1NQ/1rnNp1bQ/n1R2B2/Q2r3N b - - 0 1 illegal: No proof kernel
6Bk/2qrB1NN/nR1P4/N2QN1rR/pQRn4/4p1b1/nK1Nb1P1/1R2r3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 f4 Kg7 d4 a5 Kd2 h5 Kc2 e5 f6+ Kh7 f5 c5 d6 c4 b6 e4 d5 h4 b5 a4 d7 h3 b7 h2 d6 c3 f7 Ra5 f6 Nc6 b8R Ba6 b6 Bb5 b7 Bg7 Bc4 Ba6 Nd2 Bh6 Ngf3 Bg7 g6+ Kh6 f8N Rh7 f7 Rh8 Nh7 Rd5 f8N Qc7 d8N Nge7 Nfe6 Be5 g7 Bg3 g8R Rg5 Rb1 Nf5 Ng7 e3 Bb2 Bb5 Ne5 Nb4+ Kc1 c2 Ndc6 Ba6 Na5 Nd4 Rgc8 Rd8 Bg8 Be2 Bc3 Rd7 Kb2 c1N Qb3 Nf3 Qd5 Na6 Bd4 Na2 Bc3 Qd8 Rc4 Qc7 Bd4 Qc6 Bb6 Nd4 Bd8 Qc8 Be7 Qc7 Rhc1 h1R Rc5 Bd3 R1c4 Re1 Rb5 Be2 Rb6 Nc1 Rc8 Na2 b8Q Bf2 Rf8 Bg3 Rf5 Nc3 Ne6 Rg7 Rbc6 Na2 Qb4 Rg4 Rb6 Rg6 Nf4 Kg7 Ne6+ Kh8 Rh5 Rg5 Ng7
1Q1b1rk1/3N1R1n/3p2B1/RQ1B4/1QQ2Bqb/3P1n1r/p2NrP1B/3K1Q1n b - - 0 1 legal: proof: e4 g5 h4 f5 hxg5 b5 exf5 b4 c4 b3 c5 Bh6 c6 Bb7 cxb7 Bg7 axb3 Qc8 b4 Bf8 b5 Qd8 b4 Kf7 g4 a5 b6 c5 g6+ Kg7 b5 e5 g5 h5 Nf3 a4 Bd3 e4 Ne5 Nc6 b8Q h4 b7 h3 b6 Be7 f6+ Kf8 f7 e3 Bf5 c4 d3 e2 Bf4 a3 Nd2 Qc8 Rh2 Bd8 g7+ Ke7 g6 c3 Qc1 Nf6 g8Q c2 g7 Nd4 Bg6 Nh7 f8B+ Kf6 Qc4 d6 g8B Qf5 Bd5 Qg4 B8h6 Rf8 Qd1 c1B Nd7+ Ke7 Rg2 h2 Bg7 h1N Bge5 Bb2 Bh2 Rf3 Bef4 Rh3 Rg3 Bc3 Rf3 Ba5 Nf8 Kf6 Nd7+ Kg7 Ra2 Bf6 Qe8 Be7 b8Q Bh4 b7 Bad8 Qe4 Kh8 Qb5 Kg7 Qc7 Rb8 Qcc4 Rc8 b8Q Kh8 Rc2 a2 Rc3 Kg7 Ra3 Kh8 Ra5 Kg7 Nf1 Kh8 Kd2 e1R Qdc1 Re2+ Kd1 Kg7 Nd2 Kh8 Be3 Kg7 Rf7+ Kg8 Bef4 Nf3 Qcb4 Bc7 Qec4 Rf8 Kc2 Bb6 Qf1 Bbd8 Kd1
nKR5/2RR2pB/4Q2b/k2n2B1/1Nr1N2P/1Nq3b1/1p2Q1Pb/r1NR2Rr b - - 0 1 illegal: No proof kernel
8/3Bb1p1/k1qQ1P1n/nr2b1Q1/Rn3R1K/rBNP4/NBb2p2/2R1BBR1 b - - 0 1 illegal: No proof kernel
Q4rn1/Q1r1P1QR/2R2Q1n/K3R3/1pb1P3/b3pB2/N2R1qNn/2B1kr1R b - - 0 1 illegal: No proof kernel
1qQR4/P1n5/R1B3b1/2BN3B/p3r2k/P1KQ1RNr/B1b1rpR1/Rb4n1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 a4 c4 Bc5 cxd5 Bd4 Ba3 Bb6 Bc1 Ba5 bxa5 Qd6 Rh5 Qe7 Rh1 Qd8 g4 Ke7 e4 c5 d4 b5 Kd2 f5 d6+ Kf7 a6 Kg6 a3 h5 e6 c4 a7 f4 d7 f3 e7 b4 e8R f2 d5 b3 e5 b2 e6 h4 e7 h3 d6 h2 Nc3 b1B Be2 Qc7 d8R Be6 d7 Bc2 Nd5 Qb6 Kc3 Na6 Be3 Bf7 Bc5 Nf6 Rf8 Nc7 e8B Rh3+ Bf3 Rb8 Ne2 Nh5 Ng3 Nf4 Rg1 h1B Rg2 Ra8 Qd4 Qb8 Qd3+ Kg7 g6 Kh6 g7 Kg5 g8Q+ Kh4 g5 Bg6 Bh5 Ne2+ Kd2 Ng1 Rf3 Bb1 Kc3 Bc2 Rc8 Bb1 d8R Bc2 Kd4 c3 Bc6 Bb1 Rd6 c2 Rcd8 c1R Rdf6 Bc2 Kc3 Re1 Qe6 Re2 Qc8 Bf7 g6 Re4 g7 Bg6 g8B Re2 Rh2 Bg2 R3f5 Be4 Rf3 Bb1 Rg2 Bef5 Qd2 Bfc2 Qd3 Bh7 Nf4 Qb6 Qb7 Rb8 Bb5 Bf5 Qc8 Bg6 Ba2 Qb7 Bd7 Qa8 Rd6 Rb4 Nd5 Rbe4 Ra6 Qb8 Bc6
4kr2/PnQR2Bp/1Rr2r1b/1n2p3/B2PQ1QB/Q3Q3/b1qB1n1K/3N1N2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 c5 f4 e5 Kf2 b5 Kg3 b4 a4 c4 g6 c3 f6 b3 g7 c2 f7+ Ke7 d6+ Kd7 a6 b2 a7 Na6 f5 Qg5+ Qg4 Qg6 f6+ Qf5 a5 Ne7 g8Q Nc7 a6 Ne8 Q8g7 Rg8 Bd2 c1R Nf3 Rc3 Bb5+ Nc6 Kh2 Be7 f8B Rc1 f7 Rh8 Nc3 b1N Nd1 Bf6 Ba4 Rb8 a8Q Kd8 d7 Ne7 Qae4 Kc7 d8B+ Kd6 a7 Nc3 Rg1 Nb5 Rb1 Kd7 Qh6 Rc2 Bg7 Bg5 f8Q Ng6 Qa3 Rf8 g3 Be3 Bh4 Nf4 Qb6 Nd6 Qc7+ Ke8 Qh3 Ra8 g4 Bb7 g5 Bd5 g6 Rc6 Rb2 Nd3 Rb3 Nc3 Rb6 Ncb5 Qg3 Qc8 Qf2 Bg5 Qfe3 Ba2 Rg4 Rf6 Rf4 Re6 Rf7 Rf6 Rd7 Rb8 Bde1 Bh6 Nd2 Ra8 Nf1 Nf2 Bd2 Rb8 Bf8 Nb7 g7 Ra8 g8Q Rb8 Qgg4 Ra8 Rd5 Qf5 Rd7 Rb8 Qe4f4 Qc2 Qfe4 Rd8 Rd6 Rd7 Bg7 Rdf7 Rd5 Rf8 Rd7
Nb1qrN2/pNr3P1/1n4N1/NP4Q1/1kBpn3/BB5R/b2nQR1K/r4B2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 e5 Kf2 Ke7 Kg3 h5 b4 d5 c4 h4+ Kh2 d4 g4 h3 f6+ Ke6 g6 e4 g5 e3 g7 e2 f7 e1N c6 Kd6 f5 Qa5 g6 Nf6 g8B Qa6 c7 Bd7 c8B Nh7 c5+ Kd5 f6 Qb6 c6 Qb7 b6 Ng5 g7 Kd6 c7 Bc6 b5 Kc5 Nf3 Nd3 Ne5 Be4 Ba3+ Nb4 Nc3 Ne6 Qe2 Qc6 b7 Qd6 Nd5 Na6 b8N Bb1 Ra2 Ng5 Nc6 Qd8 Na5 Bd6 f8Q Ne4 f7 Nd2 Be6 Rc8 Rb2 Ba2 Qe7 Bb3 f8N Ba2 Bgf7 Rg8 Nb6 Rh8 Kg3 h2 Bb3 Rg8 Bfc4 Rh8 Rg1 h1R Na8 Rg8 Qg5 Rgh8 Ng6 Re8 Rg2 Rg1 Nf8 Rh1 Rc2 Rg1 Rc3 Rh1 Bc1 Nd5 Rf2 Kb4 Kg2 Nb6 Rh3 Rg1+ Kh2 Nc5 Bb2 Nce4 Bc1 Rb8 c8N Rb7 Bb2 Bc7 Nd6 Bb8 Neg6 Rc7 Bc1 Bb1 Ndb7 Ba2 Bg2 Re1 Bf1 Rd1 Bb2 Ra1 Ba3+
QQ2R3/2N3rk/2bbN3/2rP1Bq1/N5pr/nP1n2p1/2BR1B2/K2NBNq1 b - - 0 1 illegal: Other
BQ1NK1kn/5R2/bNQQ2nN/1P2pb2/1r2P1r1/2q4r/qp1B1Q2/2N2N1R b - - 0 1 illegal: No possible last move
3Nr2k/BN4QB/1q1R1N1q/p4N1p/1r1P3R/1R2n2P/b1Rn3K/R1q2b1Q b - - 0 1 legal: proof: f4 d5 a4 f5 c4 b5 axb5 e5 cxd5 Be7 g3 Bg5 fxe5 f4 Qb3 f3 Qd1 Bf4 gxf4 Ba6 Nh3 Bb7 Ng1 Bc8 Kf2 Kf8 Kg3 h5 b4 c5 e4 a5 f5 g5 e6 Kg7 e7 f2 e8R c4 f6+ Kh7 b6 c3 d6 c2 d7 g4 b7 Qc7+ e5 Qc4 d8N Qa2 e6 Ne7 f7 Qd5 f8Q Nbc6 b8R Qd3+ Nf3 Ne5 b5 N7g6 e7 Bf5 b6 Qe2 b7 Nd3 Nd4 Ndf4 Rc8 Qa6 b8R Be4 Nc3 Bb7 Ne4 Qe6 Nf5 Bd5 Nc5 Ba2 Rb3 Nd5 Ncb7 Ne3 Bd3 f1B h3 Rg8 Kh2 Kh8 Bb2+ Qf6 Bd4 c1Q Rc2 Rb8 Ba7 Ne5 Be4 N5c4 d4 Nd2 Rg1 Qb1 Qf3 Qc6 Qh1 Qh6 Qf7 Qb2 Rf8 Qb1 e8N Qb2 Rg2 Qb1 Nf6 g3+ Kg1 Qb2 Re2 g2 Kh2 Qc1 Rc6 Qc5 Rd6 Qb6 Re8 Rf8 Bc2 Rg8 Re4 Rf8 Rh4 Re8 Kg3 g1Q+ Rg2 Qf2+ Kh2 Qe1 Qc7 Qc1 Be4 Nb1 Rc2 Nd2 Ne7 Ra8 Bh7 Rc8 Qd7 Rc4 Nf5 Rb4 Qg7+
3B1N1n/k1rRb1Q1/b2pb3/P6N/Q1R3n1/N1R1P1KB/r1p4R/q1Nq2N1 b - - 0 1 illegal: No proof kernel
bbR2Q2/n1Q2n2/1Np2B1q/P1pB1N2/nN1k4/1B3r2/2KBqPr1/1NN3R1 b - - 0 1 illegal: Other
Bq3Qr1/BQN4P/1b1p4/2R1n1kb/B5pQ/qBKQ4/1PnN1RB1/1rn5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 h4 a5 c4 f5 e4 g5 c6 g4 c7 f4 b6 f3 c5 a4 h6 d6 b7 f2 h7 a3 h5 a2 h6 Be6 c8Q Ra6 c6 Rb6 c7 Nd7 b8Q Qe8 Nf3 Qf7 Nd4 Ndf6 Rh2 Qh5 Qcb7 Rb4 c8B+ Nd7 Bg2 f1Q Kc3 Qh4 Nd2 Rb6 Nb5 Bg7 Nc7 Nc5 Qc2 Qfe1 Qd3 Bf7 Be6 Bh5 Bb3 Nf6 e6 Qhg3 e5 Rg8 h8Q Ra6 Rb1 a1N h7 Qge3 Q8a7 Kd8 e7+ Kd7 e8B+ Ke7 e6 Nc2 Qab8 Ra1 Bea4 Bh6 Q8c8 Nfd7 Qd4 Q3g3 Qf2 Ne5 Qcb8 Qh3 Qh4+ Bg5 Q8c8 Kf6 e7 Qf1 e8B Qf2 Qe3 Ncd3 Bec6 Qhf3 Qe2 Qa7 Qf8+ Kg6 Bcd5 Bd8 Bdc6 Qb8 Bcd5 Nc5+ Qd3+ Qf5 Qe3 Qf1 Nc4 Bf6 Qa7 Bg7 Bgf3 Ne1 Kd4 Ncd3 Ba8 Bh6 Qb7 Bf4 Rf2 Qh1 Bg2 Qf1 Qh1 Kg5 Qg3 Qg1 Be3 Qf1 Rd1 Qg1 Rdd2 Nc2+ Kc3 Qc1 Bc5 Be3 Ba7 Bb6 Qgf3 Qb1 Qhh3 Nc1 Rd5 Qa2 Qd3 Qa3 Rc5 Rb1 Nd2 Qe8 Qh2 Qb8 Qh4+
3Q1qQ1/BR3RpK/4B1p1/n1N1R2b/5BRB/2R1r3/2nnP1NP/b3k1qr b - - 0 1 illegal: Other
1R1BbB1N/1K1kPqN1/B1Q2n1r/B3Pn2/Rp6/3B1R1Q/3r3p/Rr4bq b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 c5 Kf3 f5 a4 b5 g4 h5 d4 b4 e4 h4 a6 h3 d6 h2 d5 c4 a5 c3 e6 c2 a7 f4 e7 Qb6 d7+ Kf7 d8B Ke8 e5 Qb5 Ke4 f3 g6 f2 g7 Qc6 a6 Rh4 Nc3 Qc5 d6 Qe3+ Kd5 Nd7 Kc6 Nc5 g5 Nd7 g6 Rh3 Nge2 Nh6 g8R Qe4+ Nd5 Nf6 g7 Nfg4 d7+ Kf7 Nd4 Nf5 Bd3 f1R Ne6 Qe2 Ba5 Qf3 d8B Ke8 Bh6 Qe4 Qf3 Qe3 Ndf4 Rg1 Ng6 Qf4 Nh8 Rh5 Qh3 Rb1 Rf1 Nf6 Rf3 Bd7+ Kb7 c1Q Ra4 Rc8 a8R Rc2 a7 Qh1 Rb8 Rd2 a8Q Qg3 Qa6 Qg6 Qc6 Qf7 Ng6 Rg1 Rh8 Rh4 g8B Rb1 Bh7 Rh5 Rg8 Rh4 Nh8 Rh5 Rg1 Bg7 Bf4 Bh6 Ba6 Bg5 Rd1 Rh6 Rc1 Bh4 Bg5 Bf2 Rf1 Ne3 Bhd3 Nf5 Be3 Bg1 Bf4 Rh5 Bh6 Rh4 Bf8 Rh6 Qc1 Bb5 Ng7+ Kd7 Qc2 Rb3 Rfa1 Rb1 Nh5 Ke6 Qc5 Be8 Ng7+ Kd7 Qc6#
4BrNR/3p4/1NqR1pn1/4bqP1/N1B1N3/B2r4/1PNrb1K1/Qk2BnQ1 b - - 0 1 illegal: No possible last move
BK1B2qq/2p1B3/rN3nQ1/3rbpP1/nNR1RP2/1b2NB1Q/3r4/N3N1k1 b - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 e5 hxg5 Qd6 dxe5 Kd8 c4 Ke8 cxd5 Qd8 g6 Kd7 Kd2 a5 Kc3 f5 Kd4 h5 f4 a4 e4 a3 b4 h4 g4 a2 b6 h3 g7 h2 b5 Rh5 b7 Bd6 b6 Ra5 g5 Ne7 g8B Ra7 e6+ Ke8 e5 Ra8 Qb3 Ba3 d6 Ra6 d7+ Kf8 Be2 Kg7 Nf3 Kg6 Nbd2 Rh6 Re1 Qe8 d8B Bd6 Ba3 Kh5 Rac1 Nd5 e7 Kg4 e6 Nd7 b8N Kh3 b7 Kg2 Nc6 a1R b8N Qf8 e8Q h1Q e7 Qf1 Qg6 N7b6 e8N Qg7+ Nf6 Be6 Nd7 Qh7 Ng4 Nc4 Nb6 Be5+ Kc5 Qg7 Qd3 Qh1 Nb3 Rb1 Na1 Bd7 Rc3 Nb2 Rc4 Nf6 Bd5 Rd1 Kb5 Rb1 Bae7 Rh2 Bd1 Qf8 Ree4 Qg8 Ne1+ Kg1 Kc5 Rg2 Nb4 Qhh8 Ba8 Ba4 Qh3 Bb3 Kc6 Na4 Bf3 Rd1 Kb7 Rd5 Kb8 Rgd2 Ne3
1Q1nK1n1/2p2Q2/QqP2P1N/1qR3bb/3NN1rN/Bp2k1RB/6Q1/Q1r2r2 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 e5 d4 h4 dxe5 h3 gxh3 Be7 h4 Bc5 h5 Bf8 Ke2 Kf7 Ke3 b5 Ke4 g5 Kd5 g4 f4 d6 a4 g3 c4 b4 h4 b3 c5 g2 e6+ Kf6 h6 Ra6 h7 Qe8 h5 Ra7 e7 Ba6 h6 Be2 a6 Rb7 a7 Nc6 a8Q Ra7 a5 Qd7 e8Q Qe7 a6 Na5 Rh5 Bg4 Ne2 g1Q Qeb8 Qee3 Nd2 Qh3 Ba3 Bf3+ Ne4+ Ke7 f6+ Kf7 f5 Qgg2 Nd4 Rb7 a7 Qg6 c6 Rb4 Qd2 Qg5 Qg2 Be7 Re1 Qh1 Re3 Qg1 Rd3 Bg4 Rg3 Rc4 Qab7 Rc1 Qa6 Nb7 a8Q Nd8 Qa8a7 Q5e3 Rg5 Bh5 Qaa8 Qd3 Qa8a7 Kf8 f7 Bf6 Qaa8 Ke7 f8N Kf7 Ng6 Be7 Nh4 Qb5+ Nc5 Kf6 Qa8a7 Qb6 Qc4 Qe3 Qaa6 Qd3 Ne4+ Kf7 R5g4 Bg5 f6 Qe2 Qc3 Qd3 Qa1 Qe2 Rc3 Qd3 Rc5 Qdb5 Nhf5 Kg6 Rg3 Nf7 Ke6 d5 Kd7 Nd8 Be2 Rf1 Bg4 Rc1 Ke8 Rf1 Nf3 d4 Bh3 d3 N3d4 d2 Kf8 d1R Ke8 Bg4 Nh4+ Kh5 Qbc8 Rc1 Qd7 Bd1 Qg7 Ne7+ Qf8 Rg8 h8N Rg7 h7 Ng8 Qf7+ Kh6 N8g6 Bh5 Ne7 Bd2 Nc3 Rg4 Nef5+ Kg5 Nh6+ Kf4 Ne4 Bc3 Ndf3 Ke3 h8Q Be5 Qh7 Bf4 Nd4+ Rf3 Qf5 Bg5 Qd7 Kf4 Qdc8 Rff1 Nhf3 Ke3 Qca8 Q5a5 Qb8 Qab5 Nh4+
N2rRQBn/1P3b2/5b2/1k2N2q/1rNBp2q/R1Nn4/1BB1Np1P/Kb4Q1 b - - 0 1 illegal: No proof kernel
B4Q1Q/1Pk3B1/1B1RnrB1/p2b2Q1/3qp1rn/3q1B1r/1N1QP3/N3RKb1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 h4 Qd6 g4 Qb4 g6 Qd6 h5 Qb6 g7 Qc6 g5 Qg6 hxg6 Kd8 Ra5 Kd7 Ra1 Ke8 d4 Kd7 b4 c5 b6 a5 b5 h5 b7 f5 d6 e5 b6 h4 d5 c4 Nc3 h3 Qd2 e4 Nf3 f4 Nd4 f3 Bg2 f2+ Kf1 h2 Nc2 Ne7 g8B Nec6 g7 Kd8 d7 Ne5 g6 Ng4 Bh7 Na6 g8Q Nc5 b8Q Ra7 g7 Ne5 Na4 c3 Nb2 Ne6 Bg6 Rh3 Qh8 Nf3 g8B Nh4 Bf3 Bc5 Qbe5 Bb7 Qeg5+ Be7 Rg1 h1Q Rb1 Qh2 Na1 c2 Rg4 Ra6 Rf4 Qg3 Rf6 Bc5 B8f7+ Ke7 d8B+ Kd7 d6 Bd5 Bc7 Kc6 d7 Qe5 d8Q Qd4 Qe7 Ra8 Be5 Rg8 Qf8 Kd7 Qb4 Qd3 Be3 c1Q+ Qe1 Qcc4 Qd2 Qa4 Re1 Kc6 Bc3 Qad4 Be8+ Kb7 Bb5 Rg7 Ba6+ Kc6 Bb7+ Kd7 Ba8 Rg8 b7 Kc7 Bh7 Bb6 Qgh6 Rg4 Qg5 Bc5 Rg6 Bd6 Rf6 Bh2 Rh6 Bg1 Bg6 Qe5 Ba7 Qed4 Bb6+ Kd7 Bh7 Qa4 Bg2 Nc7 Bg7 Qad4 Rc6 Ne6 Bg6 Rf4 Bc5 Rf6 Rd6+ Kc7 Bh1 Nf5 Kg2 f1R Ba7 Rf4 Bc5 Rg4+ Kf1 Nh4+ Bf3 Ba2 Ba7 Bd5 Bb6+
K3Nn1r/p2q3P/br5B/Pn2Q1Np/Nq3bk1/1Q1B1r2/RN4QR/5QN1 b - - 0 1 illegal: No proof kernel
4K1Nb/Q2r1Nb1/2b5/n2Q1Rq1/2QB2Pb/4nB2/1P3Npp/krQQ1N1R b - - 0 1 illegal: No proof kernel
b6R/1NB1N2Q/1kN4K/2rb2RB/Prpp3N/2RPn3/N3q3/n1QrR1r1 b - - 0 1 legal: proof: g4 a5 e4 h5 gxh5 b5 b4 f5 bxa5 b4 exf5 e6 c3 b3 Nh3 Qh4 Ng1 Bb4 cxb4 Qd8 Ke2 d5 Kf3 Kd7 Kf4 Kc6 h4 g6 a4 d4 f6 e5+ Kg5 e4 f4 b2 b5+ Kc5 h6 e3 a6 e2 f5 e1R d3 c6 h7 Qd7 h5 Qe8 f7 Re4 f8N Re1 a7 Nd7 f6 Qe4 h6 Kb6 f7 c5 Rh5 Ne7 Nc3 b1B Be2 Rb8 a8R Qe6 Nf3 Qc6 Bf4 Nd5 Na2 Rb7 Qc1 Ra7 Nh4 Ra5 Ne6 Rd1 f8N Bb7 Rc8 Ba8 Nd8 Ne3 Nb7 Qe6 Bg4 Rg8 h8Q Bc2 h7 Bb3 Be5 Bd5 Kh6 g5+ Nfg6 Qe7 Be2 g4 Rg5 g3 Bh5 g2 Qg7 g1R h8R Rd8 Qh7 Re8 Rc7 Rb8 Bh2 Qe4 Ne7 Qg4 Rcc8 Qe2 Bd6 Nc2 Bf4 Ne5 Bh2 Nc4 Bc7+ Ka7 Rb1 N4e3 b6+ Ka6 Rb3 c4 Rc3 Rb5 Rcf8 Rb4 Rf1 Na1 Re1 Rc8 Nd8 Qd2 b7 Qe2 b8N+ Ka7 Nbc6+ Ka6 Bf4 Kb6 Nb7 Rc7 Nca5 Rc5 Nac6 Qf3 Bg3 Qe2 Bc7+
3Kb3/k7/3N1NQ1/N1PnpN2/1R1bRPR1/prBNrR2/nn1Qnq2/1B6 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 d5 Kd4 Kd7 Ke5 Kc7 h4 Kb7 b4 a5 c4 d4 b6 a4 f6 d3 c6+ Ka6 b7 g4 b5+ Ka7 h6 g3 b6+ Ka6 c7 e6 f7 g2 h5 a3 h7 d2 c5+ Qd3 h6 Qc4 Rh4 Ne7 Kd6 e5 Bb2 Ra7 Nh3 g1N Nf4 Be6 c8N Qb5 Kc7 Bb3 Kd8 Nd5 Nc3 Nd7 b8N+ Kb7 Rg4 Qd3 Ne7 Qf5 Ne4 Ba4 Nbc6 Nf3 Bc3 Bg7+ f8R Qg6 Nd3 Ng1 Na5+ Kb8 b7 Qf5 Nf6 Nb4 f3 Rg8 h8N Na2 h7 Nb6 Nf7 Nd5 h8Q Be8 Qh6 Ne2 Qg6 Bh6 Nd6 Be3 Qe1 d1N Qd2 Nb2 Re1 Qf4 Nef5 Bd4 Bg2 Ra8 Bh3 Ka7+ b8R Qh2 Bf1 Qf2 Bg2 Nec1 Ree4 Rh8 Bf1 Rh3 Be2 Rg3 Bd1 Ne2 Bc2 Rh3 Bb1 Rg3 f4 Re3 Rh8 Nc4 Rh3 Nb2 Rc8 Rb8 Rf3 Rb6 Rb8 Rb3 Rb4
QRN3n1/K2R3p/BB2Pb1R/1bBrq1r1/1N1k2p1/6PR/R6n/b1Qb3B b - - 0 1 illegal: No possible last move, all moves rejected
NQ2R3/1b1qN1p1/r4NpP/4n1r1/1Q4R1/NBbN1nn1/2K1B1P1/B3Bkn1 b - - 0 1 illegal: Other
rr2RK2/4Q1rk/q1Q2N1b/Nb1B4/P3ppB1/bR2P1Q1/1q2BBn1/2B3Q1 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h4 a3 bxa3 Nh6 a4 Ng8 a5 Bg7 Na3 Bh6 Nb1 Bf8 g4 Ra6 g6 Be6 g5 Nc6 h5 Ne5 g7 Ng6 hxg6 Ra8 Ba3 Bd7 Bc1 Bc8 Kf2 e5 Kf3 b5 Ke4 c5 d4 h5 a4 h4 a6 c4 e3 b4 a7 f6 d6 b3 Kd5 e4 d7+ Ke7 Nh3 b2 Nf2 h3 Ng4 h2 Ra3 f5 Nf6 c3 Rb3 f4 Be2 c2 Na3 b1Q Nc4 Rh6 Na5 Qc7 Qg1 Rb8 a8Q Qd8 Qc6 Rh7 Bg4 Nh6 g8B Qa2 g7 Ra8 g6 Nf5 Be6 Rb8 g8Q Qe8 g7 Ra8 Be2 Nh4 B6g4 Ba6 Kc5 Bb5 d5 Qb2 Qg3 Nf5 Rg1 Qf7 d6+ Ke6 d8Q h1R Qdc7 Ke5 Qd8 Qe6 Qe7 Nh4 d7 Ng2 d8B Rh8 Rd1 Rf1 Rd7 Rg1 Rc7 Rb8 Rc8 Ra8 Qh7 Rb8 g8B Bh6 Qhg7 Ra8 Bb6 Rb8 Re8 Ra8 Bd8 Rb8 Bgf3 Kf5 Bh5 Qc8 Kd6 Qa6 Bd5 Rf8 Qgf7 Rg8 Bhg4+ Kg5 Qfe6 Kg6 Qe5 Rg7 Qc3 Rd1 Qce1 Rd3 Qg1 Rc3 Qb6 Rcc8 Qc6 Ra8 Qa7 Rcb8 Qc7 Rg8 Ke7 Rg7+ Kf8 Qa7 Nh5+ Kh7 Bh4 Qb7 Qe7 Qa6 Qf3 Qa1 Bf2 Qb2 Bd2 c1B Qh3 Qc3 Qg3 Ba3 Bc1 Qb2 Nf6+
5R2/RRnBBp2/NN4r1/Q1Q1k2b/1pB2q1P/bPn1nB1K/3bR3/1R1q4 b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 fxe5 a5 g4 b5 gxh5 b4 a4 Ra6 Ra2 Rb6 Ra1 Rb5 axb5 Qd6 Nf3 Qf6 Ng1 Qd8 Kf2 Kd7 Kg3 g5 e4 c5 d4 c4 h4 g4 b6 a4 b7 c3 h6 a3 b3 a2 d6 Ke6 d7 c2 h7 Bd6 d5+ Ke7 Nc3 Qe8 d8Q+ Kf8 Nf3 Kg7 Nd2 Qb5 Qa5 Nf6 Nc4 Nc6 b8R Ne8 Bg5 c1Q Nb6 Nd8 Nca4 Ne6 Be7 Nf4 e6 Qc2 e5 Nf6 Qd4 Ng2 Qc5 Ne8 Rb7 Qd1 Bc4 Rg8 h8R Nc7 Re1 Qd7 Re2 Ne3 Rb1 a1B Kh2 g3+ Kh3 g2 Ra7 Rd8 Rf8 Bb2 Rb7 Ba3 Ra7 Na6 Rb7 Bb8 d6 Qc7 d7 Kg6 Ra7 Kf5 Rb7 Re8 d8R Ke4 Rd7 g1N+ Kg3 Rd8 Ra7 Qcd6 Rdb7 Nc7 Kh2 Nf3+ Kh3 Nd4 Nd5 Ndb5 Nab6 Na8 Nc7 Nc3 Na6 Nc7 Bf6 Kf5 e7 Q6d2 e8B Rd6 Bg5 Rg6 Be7 Qd4 Bc6 Qf4 B6d5 Bd7 e6 Ke5 Bd8 Bb5 e7 Bc6 e8B Bb5 Rd2 Bc6 Be7 Bb5 Bf1 Be2 Bd7 Bh5 Bfc4 Ne8 Rbb2 Bd6 Rb1 Nc7 Bd8 Be7 Re2 Bg5 Bf3+ Qd5 Ra8 Qf6 Rf2 Ned1 Bh1 Bgc1 Be4 Ne3 Raa7 Qf4 Bf3 N3b5 Qc6 Qd1 Re2 Bd2 Be7 Bb2 Bcd5 Nc3 Qcc5 Ba3 Bc4+
q2nk3/1Np5/3rQ2K/qBP1p2R/3R3B/q1bB2BP/3NRR2/1bb1R1Qn b - - 0 1 illegal: No possible last move
5qB1/NNQK4/p3N2p/b1RQ2Bk/PrNbB2B/1Rb4n/4Nq1P/5qr1 b - - 0 2 legal: proof: g4 e5 b4 f5 f3 c5 bxc5 d5 Bb2 d4 Bc1 f4 e3 Bf5 gxf5 e4 exd4 e3 d5 Nd7 Ke2 Ndf6 Ke1 Ne4 fxe4 Kf7 Bh3 Ke7 Bf1 Ke8 Ke2 Kf7 Kd3 b5 Kd4 g5 Ke5 e2 a4 e1B c4 a6 d4 f3 d6 b4 d5 g4 f6 Kg6 Ke6 h6 f7 g3 e5 f2 d7 g2 c6 b3 d6 b2 c5 Qa5 d8N Qb6 d7 Qb4 c7 Qb5 c8N Qc4+ Qd5 Rh7 c6 Bd6 f8N+ Kh5 c7 Rg7 Bd3 f1Q Be4 Qd4 Nd2 b1Q Nc4 Qbb2 Bg5 Bd2 Na7 Qe3 c8Q Qbb1 Ra3 Qb4 Qc7 Rb8 Rb3 Ne7 Ne2 g1B Nb7 Qef2 d8B Bc3 Kd7 Ng6+ Bde7 Bc5 e6 Nf4 Bh4+ Rg5 Bf6 Nh3 e7 Bb6 Ne6 Ba5 e8B+ Kg4 B8g6 Qf8 Bf7 Rg6 Bfg5 Kh5 Nbd6 Rb4 Nb7 Qf5 Bg8 Bgd4 Rg1 Q1f2 Rc1 Qf1 Be3 Rg1 Beg5 Q5f2 Na3 Bb2 Rc5 Bbc3 Nc4
BBB3n1/N1B2qp1/1bPkpbP1/1r4B1/3b2RR/r1Q1N2R/5Q2/2RbK2b b - - 0 1 illegal: No possible last move, all moves rejected
N6B/Nnp2kQ1/P1Bbpr2/1RB1P2B/qr6/1NBQK3/3rNn1R/2r3n1 b - - 0 1 illegal: No possible last move
3Bn1rq/QQp4B/1NbRN2B/Kb2pr2/4P3/2N1N2k/Pr2NRr1/b3B3 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h4 a3 bxa3 Nh6 a4 Ng8 a5 Bg7 Na3 Bh6 Nb1 Bf8 g4 Ra6 g6 Be6 g5 Nc6 h5 Ne5 g7 Ng6 hxg6 Ra8 Ba3 Bd7 Bc1 Bc8 d4 Kd7 Kd2 b5 Kc3 e5 d6 Ke6 Kb4 Kf5 d5 Kg4 a6 f5 a7 h5 Rh2 h4 Nc3 h3 Qb3 f4 Rf2 h2 Ka5 h1R d7 f3 d6 Nh6 g8Q b4 g7 Qe7 d8B Qe6 d7 Nf5 g6 Bb7 Bh6 Ba6 Bh4 Qc6 d8B Rh2 Rd1 Qf6 Rd6 Rb8 a8N Bb5 Nb6 Rg2 e4 Bc6 Nge2 Kh3 Qa3 b3 Qd5 b2 g8N b1B g7 Bd3 Ne7 Bc4 g8N B4b5 Ng6 Ng7 N8e7 Rg8 Nf5 Ne8 Ne3 Qh8 Bg3 Be7 Nf8 Bh4 Ne6 Be7 Rd7 Bc5 Rd6 Bd4 Bgh4 Bd7 Qb7 Bdc6 Ncd1 Ba1 Ndc3 Ba6 Nc1 Bab5 Bc4 R2g5 N1e2 Rg4 Rg2 f2 Bb3 f1R Be1 Rf5 Rf2 Ra8+ Qa7 Rb8 Qb4 Bc4 Qb5 Rg2 Qba6 B4b5 Q6b7 R8g6 Nf8 Rg7 Bg8 R7g5 Bh7 Rg8 Ne6 Bd3 Na8 Ba6 Qc8 Rb2 Nb6 Bab5 Qcb7
N1n1R1Rb/3B1b2/K4B2/b1B2n2/Q3Nk2/pP3Npb/Pnq1N3/2QrB2B b - - 0 1 illegal: No possible last move
B1QB1B1k/b2PK1R1/1Q1n1Q2/2Nb4/1q1pBr2/p3Rb2/Q2Pb1N1/2B1r2r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 Nd7 c3 Nb6 c4 Nd5 cxd5 Qe7 Rh2 Qd7 Rh1 Qd8 Kf2 f5 Kf3 Kf7 Kf4 Kg7 b4 h5 e4 c5 g4 a5 b6 c4 b5 c3 b7 h4 b8B a4 g6 c2 b6 a3 g5 h3 b7 h2 d6 Be7 d7 Ra4 e6 Qb6 Ke5 f4 Nf3 Qb2 Bg2 Ra8 Ne1 f3 Rg1 h1B Nc3 f2 Na4 f1B Nc5 Rh3 Bd6 Rh8 b8B Bf8 e7 Qb7 Ke6 Rh4 e8Q Qb2 e5 Ra5 Qe7+ Kh8 g7+ Kh7 g6+ Kh6 Qf6 Qb6 Bc7 Be7 Be4 Rg4 Bd8 Qb1 Ng2 Be2 Re1 Bf3 Re3 Rf4 Qe2 Bf8 Qb5 Ne7 g8Q Qb4 Qb6 Ba6 Kf7 Nc8 e6 Bb5 e7 Bbe2 e8Q Ra8 B6e7 Nd6+ Ke6 Rc8 Qgf7 Rc7 Ba8 Rc6 g7+ Kh7 Rb1 Rc8 Rbb3 Be4 Rg3 B4f3 Re3 Rc6 Qg5 Rc7 g8B+ Kh8 Bh7 Rc8 Bhe4 Rc6 Bb2 c1R Qgg6 Rd1 Bc1 Re1 Qgf5 Rc7 Rg7 Rc8 Qd5 Rc7 Qa2 Rc8 Na6 Rc5 Qf6 Rh5 Bc7 Rh6 Qc8 Rh5 Bcd8 Rh2 Nh4 Bhg2 Nc5 Rhh1 Nb7 Nf5 Qbc7 Bh5 Bc6 Be4 Ng2 Bhf3 Bc5 Bd6 Qa5 Be5 Bf8 Bb8 Qb6 Ba7 Nc5 Nd6 Bcb7 Bc6 Ke7 Bce4 Ba6 Bc6 Bd3 Bcd5 Be4
QK2Rq2/R2Q1R2/3k2n1/r1nB1PpQ/QRQBr3/Nn2r2b/2N2pP1/3r4 b - - 0 1 illegal: No proof kernel
2bRR3/3Bpr2/R5QP/Rnnrr3/4Pp2/B3Q2B/1Bknq1NK/3nR1N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 c4 d5 cxd5 g4 a4 Bh6 axb5 Bg5 fxg5 Be6 Ra4 Bf5 Ra1 Bc8 Kf2 Kd7 Kg2 Kd6 e4 Ke5 d4+ Kd6 h4 a5 b4 f5 g6 c5 g7 g3 h6 f4 h5 a4 b6 a3 b7 c4 b5 c3 h7 c2 b6 a2 h6 Ra4 Qf3 Rc4 Ba3+ Rc5 Qe3 c1R Nc3 Nc6 b8R Bd7 b7 Na7 Ra8 Rd1 b8R Nf6 g8B Ng4 Be6 Rf8 h8B Bc8 Bd7 Nb5 Ra5 Nf2 Bg7 Rd2 Nd1 Rf7 Bh8 Qb6 Rba8 Qa6 Bg7 Kc7 d6+ Kb6 d5 Rd3 Bgb2 Rd4 Rb1 a1N Rc1 Nb3 Ra1 Nd3 Kh3 g2 Kh2 Nf2 Rb8+ Bb7 Re8 Bc8 Qc1 Rd3 Ne3 Nd1 Qc3 Rd2 Qf6 Rd4 Qg6 Rd2 Nh3 g1N+ Ng2 Ne2 Ng1 Ned4 Be6 Rd3 d7 Nd2 d8R N4b3 d6 Re5 d7 Nc5 Bh3+ Rd6 Bc4 Kc6 Bce6 Rdd5 Ne2 Rd3 Re1 Ncb3 Ng1 Rh7 Bd6 Na7 R5a3 Rf7 Bef5 Qc4 Ra6+ Kb5 R1a4 Rd4 Bda3 Qe2 R4a5+ Kc4 Be6+ Kd3 Beg4 Bb7 Rc8 Nb5 d8Q Nc5 Qd7 Rd6 Rcd8 Kc2 Qde6 Bc8 Qb3+ Kb1 Qf3 Kc2 Bd7 Rdd5 Qe3
2Q5/1bq3rP/1p3Q2/2N1bb1R/5B2/KP1R2pR/2BQ1RQr/kQ1rn1rN b - - 0 1 illegal: No possible last move, all moves rejected
qr6/1QpP1KbR/n1b4R/1BPB1b2/p3N3/1k3QbB/3QQ1QB/rq5N b - - 0 1 illegal: No possible last move
1b2K3/R1R1Q1q1/p3r3/R1rRbQ2/P3pNB1/1n2QPN1/bQ1Bb3/Q3kq2 b - - 0 1 legal: proof: g4 c5 e4 g5 b4 f5 bxc5 d5 gxf5 Nc6 exd5 Ne5 h4 g4 Ke2 Nf7 Ke1 Ng5 hxg5 Qd7 Rh6 Qd6 Rh1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 b5 Ke5 a6 d4 b4 c4 e6 f3 g3 d6 g2 g6+ Kg7 d5 b3 c6 h4 c5 h3 d7 h2 d6 b2 c7 Ra7 c6 Rh6 f6+ Kh8 f7 Kg7 Nh3 g1B Nd2 b1B Nf4 Bc5 Bh3 Nf6 Nf1 Bb6 Ng3 Qe8 d8R Qe7 d7 Bd3 Bg4 Be2 a3 Bb7 c8Q Ne4 c7 Nc5 Qb8 Bd5 c8R Ba2 Rc7 Nb3 Qg1 Rb7 Qe3 Ba7 Rd1 h1Q Rd5 Rb4 Qb7 Ra4 Ra8 Bb8 d8Q Rc4 Ra7 Rc5 Qb5 Qd7 Qe7 Qf1 Qb7 Rh2 Qb4 Kh6 Kf6 e5 g7 e4 g8Q Rh5 Qbd4 Re5 Qb2 Re6+ Kf5 Bg7 f8Q Rf6+ Ke5 Kg5 Qh8 Qd8 Qff7 Qg8 Qfe6 Qh7 Kd6+ Kh4 Kd7 Qh6 Qf5 Qh7 Qee5 Re6 Qhf8 Qh6 Q5d4 Be5 Qe7+ Rf6 Ke8 Qg7 a4 Qg1 Rb1 Qf1 Qf8 Rfc6 Qa1 Rf6 Qdb2 Re6+ Qe7+ Qf6 Qc2 Nd4 Rb5 Nb3 Nh1 Qg5 Ra5 Qf6 Nf2 Kg3 Qcb2 Qg7 Nh1+ Kh2 Qd3 Kg1 Ng3 Kf2 Qe3+ Ke1 Bd2#
1NRKB1R1/Q2QP1p1/B1N2n2/7p/2q1q3/2Qq1qPb/2QbB3/n2rQ1Bk b - - 0 1 illegal: No proof kernel
2Br2bQ/1nB1QNq1/KQ1pB3/1p3Bk1/NB3b1r/2PrRR2/1r1P1Q2/5q2 b - - 0 1 illegal: No possible last move
R5Q1/1bB3Bp/7Q/p1QQnR1N/n3NKBB/q2B4/b2P2rP/2b1qk1b b - - 0 1 legal: proof: e4 c5 a4 g5 f4 d5 exd5 a5 fxg5 b5 b4 Ra7 bxc5 b4 Qh5 Rb7 Qd1 Rb5 axb5 Bh6 Ra2 Bg7 Ra1 Bf8 Ke2 Kd7 Ke3 e5 c4 f5 g4 b3 g6 b2 g5 e4 b6 Na6 g7 Qe7 b7 Qe8 b8B Qg6 d6 Kc6 d7 Qf7 d8B Be6 g6 Nc7 Nc3 b1B Qh5 Na6 Bb2 Bc8 Nge2 Nh6 g8Q Qe7 g7 Ba2 Nf4 Bb7 Bd3 Nf7 Rag1 Ne5 Bbc7 Qd6 Qgf7 Rg8 Qh6 Be7 Nh5 f4+ Ke2 f3+ Ke3 f2 Kf4 e3 Ne4 Bf8 Bh4 f1B Rg4 Bh3 Rf1 e2 Rg5 e1Q Rf5 Bg2 Qd5+ Kd7 Rg1 Bh1 Rgg5 Ke7 c6 Nc5 Bd4 Na4 c5 Rh8 g8Q Bg7 Qa8 Rg8 Rf8 Bf6 Rf5 Rg2 Qg8 Nf7+ Be5 Ke6 Qd8 Kd5 Qd7 Qc1 Ra8 Qa3 Qdd8 Bh8 Qdg5 Qe6 Bg7+ Ne5 Bd6 Kd4 c7 Rg1 c8B Rg2 c6 Qe8 c7 Qe7 Be2 Qe6 Bg4 Kd3 Bd7 Qe8 c8Q Qe7 Qc5 Qe6 Bh3 Ke2 Bg4+ Kf1 Bc7 Qe8 Bf8 Bf6 Bg7 Be7 Qcd5 Bc5 Qe7 Bd4 Be6 Bb2 Qec5 Bc1 Bf7 Qb5 Be8 Qe2 Bg6 Qe1 Be8 Qc3 Bc6 Nb6 Ba4 Qa3 Bc2 Na4 Bd3+
6rr/8/2Bpn1NB/1N1B1Q1k/1bn1R2P/1QQ1QK1n/B2Pp1r1/r2bR1B1 b - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 bxa5 h5 c4 b4 g4 c6 gxh5 Qb6 Qc2 Qc5 Qd1 Qb5 cxb5 Ra7 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 h4 e5 a4 g5 f4 d6 b6 b3 f6 c5 b7 g4 a6 g3 a5 e4 f5 e3 a7 g2 a6 b2 h6 c4 h7 c3 Kf3 c2 Nc3 b1N Ba3 c1R Qe1 Nh6 Nb5 Nc6 b8Q Nc3 Ne2 g1R Nf4 Bd7 Bc5 Rg4 Ng6 Rg2 Bc4+ Nd5 Ra4 Rc2 Ba2 Rb2 Re4 Na5 Rg1 Rg8 h8Q Ng4 Qb7 Rd8 a8B Nf2 a7 Bg7 Qb6 Nh3 Bc6 Rb4 a8B Ra4 Qb1 e2 Re1 Rb8 Qb3 Nc4 Bg1 Nc7 Q6e3 Ne6 Bd5 Ra6 Bac6 Rbc8 Qhh6 Rh8 Qec3 Rcg8 Qhe3 Ra5 Bb1 Ra1 Ba2 Be8 Nf4 Kf8 f7 Ke7 f8B+ Kf7 f6 Bd7 Nd3 Kg6 f7 Kh5 Ne5 Bf6 Ng6 Be8 Qc1 Bc3 Bh6 Bb4 f8Q Bd7 Ba8 Bc6 Qcc3 Be8 Nd4 Ba4 Nb5 Ng7 Bac6 Ne6 Qbb2 Bc2 Qbb3 Bd1 Qf5+
6RB/b4nK1/q2N2n1/1n1Bpp2/3BPP2/1BNQ2Rk/2BQN2n/N1n1r2q b - - 0 1 illegal: No possible last move, all moves rejected
6n1/kNN1R1KB/n6r/B2Q1B2/1QQ2PBR/1bQ1ppnr/qP2pB2/b7 b - - 0 1 illegal: Other
4k1B1/Nr3r1N/R1Nn2Q1/1Brb1BpP/K1pp3b/4N1N1/2Pn2R1/Bq5Q b - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 f5 gxf5 h5 b4 h4 a4 h3 axb5 Rh7 Ra3 Qf6 Rxh3 Rh8 Rh7 Qd8 Kd2 g5 Kc3 a5 Kb3 d5 e4 c5 h4 c4+ Ka4 d4 f4 Nc6 h5 Bc5 b6 Be7 e6 Bd6 e7 Be6 b7 Kd7 b8N+ Ke8 e5 Nh6 b5 Rg8 b6 Rf8 b7 Bf7 f6 Qb6 f5 Bg6 Nc3 Qb1 Rh2 Bf7 Bh3 Bc7 Bb2 Be6 Ba1 Na7 Rg2 Bd8 Nge2 Qb6 Nd5 Ng4 Nc6 Nh2 b8N Qb1 Qh1 Qb6 Ng3 Bg8 Ne3 Bf7 Rh6 Nb5 Na7 Bg8 Nbc6 Nf1 Bg4 Rc8 f7+ Kd7 Re6 Nd6 f6 Qb1 Bf5 Nd2 e8B+ Kc7 Ka3 a4 Bd7 Rb8 Bc8 Be7 Ba6 Kd7 Bb5 Rfc8 f8Q Rb7 Qh6 Ke8 Qg6+ Bf7 Bb2 Rcc7 Kb4 a3 Ka4 a2 Ba1 Nc8 Rd6 Bf8 e6 Rd7 Rd5 Bb4 e7 Ba5 Re5 Rd5 Re6 Nd6 Qg7 Bg8 Qh6 Rc5 f7+ Kd7 f8N+ Ke8 Rg6 Bd5 Rf6 Nf1 Nh7 Be1 Ne2 Bh4 Ng3 Nd2 Re6 Kd7 e8B+ Kc7 Bf7 Kd7 Nb4+ Kd8 Rg6 Ke7 Bg8 Kd8 Ba6 Ke8 Nbc6 Rf7 Bb5 Rb7 Bb2 a1R+ Kb4 Ra6 Ne7+ Rac6 Rf2 Nf7 Rg2 Kd8 Ka4 Rcc7 Ra6 Nd6 Nec6+ Ke8 Qg6+ Rf7 Ba1
1RqQ2r1/1knR1nN1/nbp4N/RBp3B1/R1RNN1P1/4Q1Kp/7P/b1r5 b - - 0 1 illegal: Other
2Q3Q1/5QQN/2prP1p1/Bnbk3R/Q2Pbq1b/p6r/K3nB2/NB3R1B b - - 0 1 illegal: No proof kernel
r6k/2BRKn2/Rp1BBr2/NN1bRP1B/1R3rnp/2P1p3/1bQ2Q2/5B1q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 Kf7 Kd3 Kg7 Ke4 h5 Kd5 e5 g4 b6 f4 h4 a4 e4 c3 d6 c6 Ra6 c7 Ra8 f6+ Kh7 a6 Qe8 g6+ Kh6 f7 Kg7 g5 Ra7 a5 Nd7 f5 Rb7 a7 Qe7 a8R Rh5 a6 Nb8 a7 Rh7 Ra5 Qe8 Nf3 Be7 f8B+ Kh8 Ne5 Rh6 g7+ Kh7 Na3 Rf6 Bf4 e3 Nb5 Qd7 Nc6 Rh6 Qc2 Rf6 Bh2 Nh6 g8R Nf7 Rg7+ Kh8 g6 Qe8 Ra6 Nd7 Na5 Qd8 Rb8 Nde5 a8B Bd7 c8B Ra7 Bg3 Be8 Be6 Ng4 Rc8 Bd7 Rc5 Qc7 Bc6 Ra8 Bf4 Bc8 Be8 Qb8 Kc6 d5 Bc7 d4 Re5 Ba3 Bfd6 Bb7+ Kd7 d3 Ke7 d2 Rg1 d1R Qf2 Ngh6 Rg4 Bb2 Rb4 Rd4 Qc2 Bd5 Qf2 Nd8 Rf7 Ng4 g7+ Kh7 Qc2 Rf4 Qf2 Qb7 g8Q+ Kh6 Rg7 Qc6 Bh5 Nf7 Qb8 Qb7 Rg8 Kh7 Rd8 Qc6 Rd7 Kg7 Qa7 Kh8 Qb7 Bb3 Qc2 Qh1 Qbg2 Bd5 Qgf2
q1Q3r1/1B1Q3p/P3p2p/3RBnrR/rRP1b2k/3R4/1RBNBK2/2b1nN2 b - - 0 1 illegal: Other
B1qbBQ1r/1Bb2Qp1/5P2/1Qp5/4kB2/7n/RQNKnpP1/1r1RB1rN b - - 0 1 illegal: No possible last move, all moves rejected
5Nr1/2Rrp1b1/N1K2P1k/PnB2NRq/B1ppRN2/4b2N/3R1Q2/n2b1Q2 b - - 0 1 illegal: No proof kernel
r6Q/PN1rBB2/2qB1p2/1RbN2r1/p1P4k/nR1pB3/1K6/BN1bNQn1 b - - 0 1 illegal: No proof kernel
r2Q4/p1Rb1p2/3b2P1/N3N1QB/3P1R1n/1pKB2kB/2RBq1nr/1BR2n2 b - - 0 1 illegal: No proof kernel
6RB/pNpB2b1/1q3kPN/3PBr2/5NR1/2K2b2/1BBpN2r/2nrQQn1 b - - 0 1 illegal: No proof kernel
3q4/1rp3NK/nN1n1RBR/2Bp2QN/4Q1N1/2q1p3/2PbP1R1/1kRb1R1r b - - 0 1 illegal: Other
KN2B3/NRp1RP2/NB5Q/p2Rq3/4r2q/3r4/RP1n1nbp/bN1Q1N1k b - - 0 1 illegal: Other
1NnBQNk1/pQK1RP2/P4n2/B1p5/B2n4/N1R2pN1/1rq2b2/1bBNb3 b - - 0 1 illegal: No possible last move, all moves rejected
Qkb1r3/2RQQ2n/5Pbr/R2N2p1/2QB2q1/4BpP1/2Nb1BBp/1r1B1K2 b - - 0 1 illegal: No proof kernel
B3Nb2/2Qn4/qq4r1/1QB1RN1P/k2K2N1/2QN1bQp/1bp2p1P/5QRr b - - 0 1 illegal: No possible last move, all moves rejected
4Qn2/2p1Kp1N/R1p2PNq/b3B3/B2Br3/1BrqR2R/2bkq1P1/R4R1Q b - - 0 1 illegal: Other
bQN1K1NR/1P1B2R1/4pb1Q/2RpP1Nn/2rkr1Nb/N2p4/5q2/R2q2B1 b - - 0 1 illegal: Other
2q5/k3N1Qb/PqR1BN1Q/1p1prB2/2NpRBK1/1b1P3n/1rB2b2/N6B b - - 0 1 illegal: Other
6k1/1N1pr2B/1N2r1bB/2RQnRqn/rQNp2R1/1p1P4/3qPRN1/R5K1 b - - 0 1 illegal: Other
kBB3B1/Q1P1Q3/n4Q1Q/1pr3p1/2np1N2/b2PN1q1/2K2RB1/R2Bqbb1 b - - 0 1 illegal: No possible last move
1qR2rqB/3r2b1/3bpBN1/2Bb2nQ/1Q2k1B1/1pPp4/QP1Q4/R1K2QN1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 Nc6 a3 Nd4 a4 Nb5 axb5 Qb6 Bc4 Qa5 Bf1 Qd8 Kd2 Kf7 h4 Kf6 f4 d5 c6 a5 h6 g5 c3 g4 h5 a4 h7 b3 b6 e6 h6 d4 b7 g3 b8Q g2 c7 d3 Na3 Ra7 Nc4 a3 Qb4 a2 Ne5 Ra5 Ng6 Ra7 Be2 Bc5 Bg4 Bb7 c8Q Qb6 Qa8 Kf7 f6 Qb5 f5 Bd6 Qe1 Bc8 Kd1 Rd7 Bg5 Qb8 Kc1 Bb7 Qd2 Bd5 Qa6 Ne7 Qaa4 Re8 h8Q Nc6 h7 Nd4 Rh3 Rf8 Rf3 Qb7 Rf4 Nf3 Rc4 Qb8 Rc8 Rdd8 Bh4 Ng5 Qa6 Ke8 f7+ Kd7 Ne2 g1B f6 Bd4 Ng1 Bc7 Qa7 Kc6 Qaa5 Rd7 Qaa3 Re8 f8Q Be5 f7 Bg7 Qfg8 Red8 f8B Re8 Bc5 Rf8 Rd8 Bd6 Qf7 Bc4 Qa7 Kd5 Rc8 Ke4 Qaa5 Qb7 Qf1 Qb8 Rb1 a1Q Qa2 Nf7 Bf6 Ng5 Qaa5 Qa3 Ra1 Qa2 Qa6 Qa5 Qa7 Qd8 Qa2 Qe8 Qg8 Qf7 h8B Qe8 Qh7 Qf7 Qba5 Bd5 Qh5 Qg8 Qb4+
1n3q1B/P1Q2Q1B/p1p1N1Bb/Pk3K2/Bq1r1Q2/4p2n/RQ1n3B/3r1NR1 b - - 0 1 illegal: No extended proof kernel
R2B3K/3B1knn/Q2pqrrP/3q2p1/1QpPr2R/2B1Q2B/1bB3N1/1Q5N b - - 0 1 legal: proof: g4 h5 gxh5 e5 c4 b5 cxb5 e4 b6 d6 a4 e3 b4 Qd7 a5 Rh7 a6 Ke7 b5 Bb7 axb7 Rh8 fxe3 Qd8 e4 Kd7 e5 Ke8 Kf2 f5 Ke3 c5 Kf4 a5 e4 g6 h4 c4 h6 a4 h7 a3 h5 a2 h6 Nf6 Kg5 f4 e6 f3 e5 f2 e7 Nh5 Qe1 Qd7 Ne2 Ng7 Kf6 Nf5 Nbc3 Ne3 Ne4 Ra4 Rh4 Na6 b8Q+ Qc8 b7 Nc2 b6 Nab4 Qa8 Ne3 b8Q Ra3 b7 Rd3 N4g3 Rg8 h8B Rg7 Nf4 Nd1 Ng2 Na6 Nh1 Nc7 Qa6 Ne6 Qe3 Rd4 Bb2 g5 Bc3 Re4 d3 Kd7 e8B+ Kd8 Bd7 Rg6+ Kf7 Ng7 Kg8 Ke7 e6 Qe8 Ba5 Nc3 Kh7 Kf6 e7 Nd5 Bd8 Kf7 Ba4 Qd7 Bd1 Qe6 Bc2 Ne8 Bf6 Ng7 Bc3 Nf6+ Kh8 Nh7 Bd2 Qd5 e8B+ Ke6 Bea4 Kf7 Bc3 Be7 Bd7 Bf6 Nf4 Bd4 Bfh3 f1R Ng2 Rf5 Bc6 Rff6 Bcd7 Bc5 d4 Ba3 Qc8 Bc1 b8Q Bb2 Qc5 Qe6 Qcb4 Qd5 Rb1 a1Q Q8b5 Qa5 Ra1 Qe6 Qf5 Qae5 Qf1 Q5d5 Qb1 Bc1 Qc6 Bb2 Ra8 Nf5 Qcb7 Ng7 Qa6
3r1B2/2N1bR2/1Knp1NBq/QRrr1P2/N1p3Np/5kQ1/2P4R/q3nN1R b - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 g5 a4 f5 axb5 Bb7 h3 Bf3 gxf5 g4 Nd2 g3 Nb1 Bg4 hxg4 Qg5 Rh5 Qe7 Rh1 Qd8 Kd2 Ke7 Kd3 c5 Kc4 h5 b4 a5 e4 h4 f4 a4 f6+ Ke6 g5 a3 b6 a2 Kb5 c4 b7 g2 f7 Rh5 g6 Qc8 g7 Ra4 Nd2 Na6 b8Q Qe8 Bd3 Nf6 g8N Qe7 Rh2 Ne8 Nf6 Ra5+ Kb6 Rh7 b5 Rg7 Ng4 Qb4 Nf1 Qb2 Qe1 Rg5 Ne2 g1R Nc3 Qb1 Na4 Bb4 f8R Qb3 Rf7 Nc5 Ba3 Nf6 Qa8 Rh5 Qg3 Ng8 Rb1 Ra7 Rc1 Rc7 Qa5 a1Q Rd1 Nb7 Rb1 Be7 Bd6 Bg5 Bf8 d6 Rd1 Ne7 Re1 Rc5 Rd1 Kd7 e6+ Kd8 e5 Nc6 e7+ Kd7 e8N+ Ke6 Rc1 Kd5 e6 Be7 Bg6 Qe3 Nc7+ Kd4 Rb1 Rhd5 f5 Ke4 Rc1 Qh6 Rd1 Bf6 e7 Bg5 e8N Be7 Qe5+ Kf3 Nef6 Nbd8 Rb1 Ne6 Qee1 Nf4 Rd1 Rg2 Qg3+ Ke2 Nfe3 Nd3 Rdh1 Ne1 Nf1 Qhc1 Ka6 Qh6 b6 Qd4 b7 Qa1 Nf2 Rg1 b8R Rg2 Kb6 Rg1 Qe5+ Kf3 N2g4 Qd1 Bh7 Na7 Bg7 Nc8+ Ka6 Rd2 Nge3 Rdd5 Rb5 Na7 Kb6 Rg5 Neg4 Qa1 Rg2 Nc6 Rgh2 Qh5 Bh6 Rg8 Bg6 Rd8 Bf8 Qh6 Qg3+
1b4BN/qN2Np1p/p3k1R1/1Nr2rRq/1rN2P1n/2P3n1/2Q5/KBB2BQ1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 d5 axb5 Bb7 d4 Bc6 dxc5 d4 Ke2 Nh6 Ke1 Bd5 exd5 Ng8 Kd2 Kd7 b4 e5 g4 a6 f4 e4 g6 d3 Kc3 d2 Kb2 e3 c3 e2 g5 e1R c6+ Ke7 g7 Nd7 c7 Ra7 c8B Qb6 g6 Qb8 d6+ Kf6 b6 Rc7 b5 Rc6 b7 Kf5 b6 Re2 Rh5+ Kf6 Na3 Qa8 b8Q Be7 b7 Bf8 Qc2 d1Q Qa7 Nb6 b8N Re7 d7 Re2 d8N Re8 Nb7 Nd5 Bf5 Rec8 Nc4 Re8 Ne2 Rc5 Nd4 Rec8 Nb5 Nde7 Nc6 Nh6 Rg5 Qh5 N6e5 R8c6 B5d3 Nef5 g8N+ Ke6 g7 Nh4 Ne7 N6f5 N5g6 Ng3 Rb1 Rf5 Qg1 Rg8 Ka1 Qa7 Nh8 Rc7 Nd5 Bd6 Ne7 Re8 g8B Rcc5 Rg7 Rec8 Rb3 R8c6 Ra3 Bb8 Ra5 Rc7 Ncd6 Rcd5 Bc4 Ne4 Na3 Re5 Ba2 Rc4 Bb1 Rb4 Ndc4 Ng3 Rc5 Rg5 Nb5 Rge5 Rc8 Rg5 Rd8 Rc5 Rd5 Rg6 Rf5 Rf6 Rfg5 Rff5 R7g6+
Q1n2QN1/QN1RN3/KpBN1B1q/P3nR2/q1N2pq1/rP2Q3/1kp5/2b2b2 b - - 0 1 illegal: No possible last move, all moves rejected
2BN1R1Q/1KBp3N/1Q6/pB2r2Q/1nkb2R1/2B1B2n/rpqPrQ1P/6q1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 Ba6 a4 Bb5 axb5 Rh7 Ne2 Rh6 Ng1 Rh8 Ke2 Kf7 Ke3 g5 Kd4 a5 f4 b3 c4 g4 h6 e6 c6 g3 c7 g2 c8Q Ba3 f6 Qc7 b6 Ne7 f5 Qa7 c5 Na6 h7 Qb8 b7 Ra7 c6 Qa8 b8B Bb4 c7 Rd8 h8Q Qc6 Ra4 Qa8 Nf3 g1R Qb7 Rgg8 c8B Ba3 Bb5 Rge8 Nc3 Ng6 Ne4 Nb4 Kc5 e5 Kb6 Re7 Bc7 Rde8 Bb2 Nf4 Nd4 Nh3 Bc3 Bb2 Rf1 Qb8 Ne6 Qa8 Ng3 e4 Nh5 e3 Rf4 e2 Rg4 Na6 Raf4 e1Q Qb8 Qah1 Qf3 Ra8 Kb7 Nb4 Qa7 Qd1 Qb6 Qhg1 Qe2 Rf8 Rf2 Qc2 Nd8+ Ke8 Rf3 Re5 f7+ Ke7 Nf6 Re8 Qh5 Ba1 Nh7 Bb2 Qef2 Ra6 Qa7 Rc6 Qab6 Re2 Bd4 Rc5 Be3 Bd4 Rff4 b2 Rf3 Re5 Rff4 Rg8 Rf3 Rg6 f8B+ Ke8 Bfh6 Ke7 Bg7 Rc6 Rff4 Rc3 Rf3 Ra3 Rff4 Re6 Rf3 Ra2 Bh8 Bc5 Bc3 Bd4 Qh6 Ke8 f6 Re5 Qh5+ Qg6 f7+ Ke7 Nc6+ Ke6 f8Q Kd5 Qh8 Q6b1 Nd8 Qc2 Bc6+ Kc4 Rf8 Kb3 Ba4+ Kc4 Bb5+
N1BQ4/kqpr4/NPP2Rn1/2nn3N/2pB1N2/p5Br/K2b2BQ/2N1R1n1 b - - 0 1 illegal: Other
rQ2B2B/Pbr2pB1/2RB4/4N2n/1Bn2Rn1/1Kp1qn2/R1PRk2p/2Q2N2 b - - 0 1 illegal: No proof kernel
Q2n3B/1p1r1pR1/n1Q2b2/KP2b3/Q1bb3N/2Bp1P1k/1Q1R1BBn/B4N2 b - - 0 1 illegal: No proof kernel
3Q1R2/2nRpB2/B2qrNbB/3BppN1/b2pP3/5QK1/RP1R1n2/2kR3r b - - 0 1 illegal: Other
4k3/nR2nRRN/3K3Q/qBQRpbp1/6Np/3pn3/P1r2B1P/4QQrQ b - - 0 1 legal: proof: d4 c5 dxc5 a5 e4 f5 exf5 a4 g4 e6 f4 a3 g5 Nh6 bxa3 Ng8 a4 Be7 a5 Bf6 gxf6 Kf7 Bg2 Kf8 Bf1 Ke8 Kf2 h5 Kf3 d5 c4 g5 a6 b5 c6 h4 a7 d4 Ke4 e5 c5 b4 f7+ Kf8 c7 b3 c6 b2 Nh3 Qe7 Kd5 Nd7 Nf2 Qf6 Bb5 Qh6 Nd2 b1N Nde4 Ba6 c8Q+ Ke7 f8R Qh5 c7 Qe8 Be3 Rh6 Nf6 Qg6 Qe1 Qg7 N2g4 Rh7 Bf2 Nd2 Rd1 Rb8 a8Q Rh5 Nh7 Qg6 Rf1 Nh6 Rg8 Nc4 f6+ Kf7 f5 d3 Rb1 Ne3+ Kd6 Nb6 Qh1 Rb7 Rd8 Ng8 Rd7+ Ne7 Qh8 Qg8 c8R Rh6 Rc5 Rb8 Rd5 Ke8 Qg7 Rg6 Qh6 Bc8 Rb7+ Bd7 Rb4 Rc8 Ra4 Rg7 Raa7 Rc1 f7+ Kd8 f6 Bf5 Bc4 Qe8 Ba6 Qa4 Bc4 Rg8 Bb5 Re8 f8Q Qa5 f7 Rb1 Qfg7 Rc1 f8Q Rc2 Qff6 Rf8 Bc4 Ke8 Bb5+ Nc6 Qc7 Rf7 Rd4 Nbd5 Qb6 Rc7 Qc5 Rc8 Rg7 Ne7 Rd7 Na7 Rb7+ Bd7 Rd5 Rc7 Bg3 Rg2 Qff2 Rg1 Qfg2 Rc8 Rff7 Rc7 Bf2 Rc8 Ba6 Bf5 Qgf1 Rc7 Qa3 Rc4 Qc5 Rc2 Bb5+
2BB1R1Q/p1pQ2r1/6Q1/RnppR2Q/Pq2P3/n2N2Q1/1R2N1kb/Kb3b2 b - - 0 1 illegal: Other
k5r1/4pQB1/1KN1Q1n1/pppqP3/1r1nBN1R/1Q3QP1/B4R2/q1B1b1B1 b - - 0 1 illegal: No proof kernel
n3R1K1/2nb1pp1/RN1Rp2r/2R1NQR1/2Qpr1P1/7b/2NBPN2/1k1B2b1 b - - 0 2 legal: proof: g4 a5 d4 h5 gxh5 c5 dxc5 a4 f3 a3 bxa3 Qc7 a4 Qf4 a5 Qg4 fxg4 Rh6 Qd3 Rh7 Qd1 Rh8 Kf2 d5 Kg3 Kd7 Kf4 Ke6 h4 b5 c4 b4 a4 d4 a6 b3 a5 b2 a7 Bb7 h6 Bf3 a6 Nf6 h7 Nbd7 h5 Ne8 c6 Nef6 c5 Kd5 h6 Kc4 c7 e6 c8Q Bb7 c6 Nb8 Ke5 Kb4 c7 Bg2 Rh5 Kc4 Na3+ Kc3 Qd3+ Kb4 Qf5 Kc3 Rg5 b1B Bd2+ Kb2 Nc2 Ne8 Nh3 Bb7 Nf2 Bb4 Bg2 Ba2 Be4 Rf8 h8N Bad5 h7 Bc4 Ng6 Bb3 h8R Ba3 Bc6 Be7 Ba4 Bg2 Rc1 Bc4 Rb1+ Ka2 Rb6 Bb5 Rd6 Bd7 Rg8 Nf6 Rh8 Nd5 Rg8 Rd8 Re8 Kb2 Nb4 Bf8 Bd1 Nb6 Nc2 Ka2 Qb7 Rc8 Qc6 Kb1 Qc4 Rd8 c8R Bh3 Rc5 Be7 Rh5 Bh4 Rg5 Rc8 Rdc6 Rd8 Kd6 Bg3+ Ke7 Bh2 Kf8 Bg1 Rd6 Rc8 Ra5 Rc5 Kg8 Re5 Rc5 Re4 Ne5 Nc6 Qc3 Nb4 Qc4 Rd8 a8N N4d5 a7 Nc7 Na1 Nbd5 Nb6 Na8 Nc2 Ndc7 Nd5 Nb6 a8R Rc8 Ra4 Nba8 Raa6 Rb8 Rca5 Rb3 Nb6 Rf3 Qh7 Rf6 Qf5 Rh6 Rc5
1n1R3R/1NNQ1pp1/3pBB1p/RN2P2r/4q2Q/1n1N1bKP/3p2R1/5Nbk b - - 0 1 illegal: Other
rRr2N1b/QNRq4/1Rn4K/N1Qqr2p/3Rp1R1/N3Pn1n/1kBB3P/7b b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kb4 d4 h5 g6 f5 Kg5 c5 g7 a5 e3 f4 d6 a4 b6 a3 d5 a2 b7 f3 d7 f2 d6 c4 Qd5 Kb3 Nf3 Kc2 b4 c3 b5 Qa5 d8N e5 d7 e4 b6 Nc6 b8N Nf6 g8Q Qc5 b7 Na7 Qg7 Qa3 Bd2 Qa4 Ne5 Rh7 Nc4 Nc6 Na5 Kb2 Qc5 c2 Bd3 c1R Na3 f1N Bc2 Bd6 Kg6 Be5 g5 Nd5 Rg1 Rh8 Rg4 Re8 Kh6 Nf4 g6 Nh3 Qf7 Bc3 g7 Re5 g8R Qb3 Qfe7 Qd5 R8g7 Bd4 Qa7 Bc3 Qec5 Bd4 Be1 Nd2 R7g6 Nf3 Bd2 Rg1 Rc1 a1Q Na6 Qaa2 b8R+ Qab3 Ndb7 Qb5 d8R Qd7 Ra1 Rc1 Nc7 Qc4 Ne6 Qcd5 Bb3 Rc4 Rc1 Rc2 Nf8 Rc3 Nd6 Ba6 Re6 Bf1 Ndb7 Bg2 Bc2 Bh1 Rd6 Re8 Rdg6 Bh8 Rd6 Re5 Rf6 Nb4 Rb6 Rc4 Qe7 Rc8 Qc5 Qb5 Rd7 Nc6 Rc7 Qd7 Rd1 Qb3 Bb4 Qa2 Rd4 Qad5 Bd2+
N2rBB2/N2nrr2/k4p2/2bQBBpQ/4b1bb/qR1n1PQ1/6P1/1KR3QB b - - 0 1 illegal: Other
1B3RR1/n1qbq1nk/N1N4p/1p3rp1/1Q1b1BKQ/3rN3/BN3BPP/2qN4 b - - 0 1 legal: proof: c4 d5 cxd5 f5 b4 a5 bxa5 Kd7 e4 Ke8 exf5 Ra6 Nh3 Ra7 Ng1 Ra8 Ke2 Kf7 Kf3 b5 d4 g5 a4 Kg7 f6+ Kh6 d6 e5 d7 c5 a6 c4 a5 e4+ Kg4 e3 f4 c3 f7 e2 a7 e1Q a6 c2 d5 Qe6+ f5 Bd6 Bf4 c1Q Na3 Bf8 d6 Qdf6 d8B Qe4 d7 Qfe6 Qd4 Qg6 f6 Qce3 Bb6 Qg7 Ne2 Q4d3 Nc3 Qc1 Nc4 Qdd2 Nd1 Qd3 Ncb2 Qe4 Bc4 Ne7 Rf1 Qee3 Ba2 Nf5 d8N Qb3 Nc6 Bb4 f8B Be1 f7 Bh4 B8d6 Rd8 f8Q Qa3 Qb4 Qd2 Qh8 Qc7 Bf2 Bd7 Rc1 Bg3 Rc5 Ng7+ Rf5 Be8 Rf8 Qc1 Rg8 Qae3 Bde5 Rd3 Bd6 Qee7 Bde5 Nd7 Bd6 Rc8 a8N Nb6 a7 Rd8 Bde5 Nc8 Nb6 R8d5 a8N Na7 N6c4 Kg6 Bd6 Rf5 Nce3 Bd7 Bde5 Qa5 Bb8 h6 Nc7 Bh4 Na6 Qc7 Re8 Bg3 Qg8 Bh4 Qgc4 Kh7 Rg8 Bg3 Bd6 Be5 Qf4 Be8 Qg3 Bc3 Qh4 Bd4 Bf4 Bd7 B4g3 Rc3 Bg1 Rf6+ Rf5 Rd3 B1f2 Rd6 Bf4 Rd5 Kg3 Rc5 Rff8 Rf5 Kg4
QNr1R2Q/2p3bK/BN4n1/1b3Bbp/2qp1B2/3r2NP/RqPNnk2/2BB4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 Kd2 Ke7 Ke3 Ke6 Ke4 a5 g4 h6 b4 f6 b6 a4 b5 a3 b7 a2 h3 d6 b6 Na6 b8B Bd7 g6 Ne7 g7 Nd5 g8N Nf4 b7 Ng6 g5 Nh4 g6 Ba4 g7 Be8 Nd2 Qc8 Ba7 Ng2 b8N Qd7 Ne7 Nb4 Nc8 Nh4 Be3 Nd3 Nb6 Qb5 Bf4 Ng6 e3 Ra3 Qf3 Bd7 Ne2 Be7 Ng3 Rc8 Rh2 Qb3 Re2 Qb2 Qh1 Bd8 Qg2 Bb5 g8B+ Ke7 Kf5 h5 e6 d5 e4 Rb3 e5 Rc3 Bg5 Ndf4 Bh7 Rd3 Re1 Ne2 Bf4 Kf8 e7+ Kg7 e8B Be7 Ke6 f5 Bc6 Bg5 Qf3 Kh6 Kf7 Bc4 e6 Bb5 Bd6 f4 e7 Bh4 e8Q Kg5 Qg2 f3 Kg8 f2 Be5 Ng1 Be2 f1Q Bd1 Ne2 Bb7 Qf4 Ba6 Qc4 Ngf1+ Kf5 Bf4 Bg5 Qd8 Nc3 Re8 Ne2 Rb1 a1B Qf3 Qbb4 Rb2 Qbb3 Ra2 Bg7 Qg2 Qb2 Qh1 Qcb4 Qf3 d4 Qa8 Q4c3 Bh2 Qc5 Ng3+ Kf4 Qf6+ Qf5 Qd8 Qe5 Qf6+ Ke3 Qd8 Kf2 Qf6+ Ngf4 Bf5 Qd5+ Kh7 Ng6 Qf8 Qc4 Qh8 Ngf4 Ngf1 Ng6 Bf4 Qc5 Ng3 Qcb4 Qa7 Qc4 Qa8
1B3bn1/bB1p1p2/r2PQ1b1/4rQK1/2Q1N1R1/qQnNRP1k/pNQ5/2N3b1 b - - 0 1 illegal: No proof kernel
1B5n/Q1KnBR1p/3Qp2P/r7/k2r1BbB/b1p1NRN1/B3Pq1p/2bQ2Q1 b - - 0 1 illegal: Other
3b1n2/1pp1pn1k/Br4rQ/Nb1pP3/1BP4K/RN1N2RQ/N1B2N2/1b3q1B b - - 0 1 illegal: Other
4k1nq/QQ4B1/QPR3P1/RN4RB/B1nnK2b/3B4/r1b2q2/RN1q4 b - - 0 1 legal: proof: d4 d5 h4 b5 c4 a5 cxd5 c5 b4 f5 bxa5 g5 hxg5 f4 a4 f3 axb5 c4 exf3 Ra6 f4 Rc6 f5 Rc5 dxc5 Ba6 Rh3 Bb7 Rh1 Bc8 Kd2 e5 Ke3 h5 g4 c3 f4 e4 c6 h4 d6 c2 c7 h3 a6 h2 a7 Rh6 a8B Re6 g6 Qf6 b6 Ba6 c8Q+ Qd8 g5 Nh6 g7 Be2 g8B Re5 g6 Bd3 d7+ Ke7 f6+ Kd6 f5 Bg7 f7 Ke7 f8R Ra5 f6+ Kd6 f7 Ke7 Qa6 Bh8 Nf3 Bb5 Rg1 h1Q Bb2 c1N Bg7 Qh4 Qd5 Nc6 Rg5 Nd3 Nd4 Ba4 Nb5 Nd4 Qdb7 Nb2 Bd3 Bc2 Qba7 Qb8 Rc8 Ra2 f8R Qbh2 Bf7 Ng8 Be8 Qg1+ Rf2 Qd1 Rc6 Qhh1 Rff5 Nc4+ Kf4 e3 Q6b7 Qh2+ Ke4 e2 Qaa6 Ne3 Qaa7 e1Q Qaa6 Qef2 Rd5 Nc4 Rdc5 Qd6 d8Q+ Ke6 Qdb8 Qh5 Be5 Bf6 Q8a7 Qh8 Rd5 Be7 Bg7 Bd8 Bd7+ Ke7 Bg4+ Ke8 Bh5 Be7 N5a3 Qb4 Qc7 Bd6 Ra5 Ne3 Rc4 Qbe1 Bd5 Qeg1 Qcb7 Bg3 Rc6 Bh4 Nb5 Qd1 Bb3 Nc4 Ba4
K3b1B1/Bn4N1/1Rb1NBP1/1r2N1n1/4p2k/2PQ1n2/NqQ5/qR2Q1Q1 b - - 0 1 legal: proof: h4 b5 e4 f5 exf5 a5 d4 c5 dxc5 g5 c6 b4 hxg5 b3 axb3 Qc7 b4 Qb6 b5 Qd8 b6 Ra7 b4 Rb7 cxb7 Bg7 Bf4 Bd4 Bc1 Bc5 bxc5 Kf8 Nf3 Kf7 Ng1 Ke8 Ke2 Kf7 Kf3 d5 g4 h5 c6 e5 g6+ Kf6 g7 a4 c7 d4 Ke4 a3 f4 a2 g5+ Kf7 f6 Kg6 f7 h4 f8N+ Kf7 f5 h3 f6 d3 Qe1 d2 Nf3 d1B Ne6 Kg6 f7 Kh5 f8N h2 Nc3 Nd7 Kd5 e4 Kc6 Ndf6 b8B Kg4 b7 Be2 Ba7 Qd4 b8Q Rh7 Bb2 Bd7+ Kb7 Nh6 g8Q Beb5 c8Q Be8+ Ng7+ Nd7 Bc4 Nf5 Nfe6 Nh4 Rb1 a1Q Na2 Rh5 Qd6 Nc5+ Ka8 Nb7 Ne5+ Kh3 Rf1 h1N Rf6 Nf3 Rg6 Qd2 Qd3 Nf2 Bbd4 Bbd7 Qc6 Kg3 c3 Qc1 Qa4 Bc6 Qac2 Qa3 Bb6 Q1b2 Bd8 Kh4 Bf6 Qa5 Qf8 Qaa3 Qc5 Qa1 Qce3 Q3b2 Qg1 Nh3 Rh6 Qb6 Qee1+ Qf2 g6+ Nhg5 Rh8 Bf7 Rd8 Bfe8 Rd6 Bf7 Nf8 Bd7 Ng4 Bfe8 Qcc1 Ba4 Rdb6 Bac6 Qed1 Qfb2 Qd1c2 Kh3 Bd5 Nh7 Bg8 Rb5 Nfe6 Ng5 Ne5 Kh4 Qce1+
2RN4/B1Qr3n/1nNn4/p4RNB/1P1N2KB/1RBrP3/1n2r3/n3Q2k b - - 0 1 legal: proof: c4 a5 a4 b5 axb5 e5 f4 d5 cxd5 Qd6 fxe5 Qa6 bxa6 Be7 Ra2 Bd6 Ra1 Bf8 g3 f5 Ra4 g5 Rh4 Bh6 Ra4 f4 Ra1 f3 h3 g4 Ra2 Bf4 gxf4 g3 Ra1 Bg4 hxg4 Kf7 Qb3 Ke7 Qd1 Ke8 b4 Ke7 d4 h5 a7 c5 e6 Kf6 g5+ Kf5 e7 Kg4 e8R g2 Kf2 c4 d6 c3 d5 c2 e3 h4 d7 h3 d8B h2 g6 Rh5 g7 Nd7 d6 Nc5 d7 Ne6 f5 Nf6 g8N Rh7 Na3 Nd5 f6 Rh3 f7 Nf8 Qe1 Rg3 Bh4 Rd8 a8Q Nh7 f8B Nb6 Bd2 c1N Nb5 Nb3 Ra3 Na1 Nh3 g1R Ng5 Rh3 Be2 Rg2+ Kf1 Rhg3 Ne7 Rh3 Bd1 Re2 Qb7 f2 Kg2 Rf3 Rg1 h1N Qc7 Ng3 Nc6 Ne4 Nbd4 Rf7 Bc3 Nd6 Rb3 Rg7 Re5 Rf7 Rf5 f1N+ Qf2 Nd2 Rf1 Nd6c4 Bc5 Ne4 Kh2 Nb2 Rg1+ Kh5 Kh3 Nd6 Qf1 Rdf8 d8N Rd7 Rh1 Re8 Rh2 Re5 Qe1 Rd5 Ndf3 Rd3 Nfd4 Na8 Ba7 Nb6 Rhf2 Nc2 Rf8 Na1 R2f3 Rg2 Nb7 Rgd2 Rc8 Rc2 Be2 Rcd2 Kg2 Kg4 Nbd8 Rc2 Kf2 Rcd2 Ne4 Rc2 Rf5+ Kh3 Kf3 Kh2 Ng5 Rcd2 Kf4 Rc2 Bh5 Re2 Kg4 Kg2 Qf2+ Kh1 Qe1+
2R1Q3/Q1P1Qnpn/2Np1rQN/1KB4P/1R4rk/R5Nr/2nqR1B1/8 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 e6 Ra5 Bd6 Ra2 Bc7 Ra1 Ba5 bxa5 Rh6 Bg5 Rh7 Bc1 Rh8 a6 Bb7 axb7 Rh6 b6 Nc6 b8N Rh7 b7 Rh8 Ke2 Ke7 Kd3 Kf6 Kc4 a5 h4 d6 f4 e5 h6 a4 h5 a3 h7 a2 Rh2 e4 Na3 e3 Nb5 e2 Be3 e1R Ne2 Nh6 Qd4+ Ke7 f6+ Ke6 f7 Kf5 f8Q+ Kg4 f5+ Kf3 f6 Rg8 h8Q Ra3 f7 Nb4 c6 Qe8 c7 Rc1 c8R Qe4 Bg2+ Kg4 Qh7 Rd3 Nc6 Rf1 b8R Rb3 Qe7 Rd1 f8Q Nd5 Ng3 Nc3 Qfe8 Nd5 c3 Nf7 Qg6+ Ng5 Bg1 Nf6 Rb7 Ra3 Kb4 Rd3 c4 Nh7 Qa7 Qe2 c5 Rf8 Nbd4 Ra4+ Kb5 Qd2 Ndf5 Rf6 Nh6+ Kf4 Bh1 Nf7 Re2 Re4 Bg2 Rf3 Rc1 a1N Rc3 Nc2 Ra3 Ra4 Nb8 Rc4 c6 Ra4 c7 Rc4 Qd3 Kg5 Nc6 Rg4 Bc5 Kh4 Qg6 Rc3 Ka6 Rd3 Rb4 Rb3 Kb5 Rd3 Nf1 Rh3 Ng3
1R5R/1qp2k2/2P1N3/QPp1B1RB/K4Q2/NRp5/1Brrbp1Q/3B2r1 b - - 0 1 illegal: Other
8/qB1r1bN1/Q1R1B3/rR2PK2/N2P1B2/bQr2kB1/1nR1N3/1n2Rbq1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Na6 cxd3 Bc5 d4 Bf8 d5 Nb8 Kf2 Kd7 Ke3 c5 Kf4 g5+ Kf5 f6 e4 g4 h4 c4 d4 g3 h6 g2 e6+ Kd6 h7 c3 e5+ Kc7 b6+ Kb7 d6 Kc6 a6 Kd5 b7 c2 d7 Qa5 d8B Qa3 a7 Qd6 h5 Nc6 b8R Bb7 h6 Qc7 e7 Na5 e8N Ba3 Ng7 Nc4 Rh2 Nb2 Bf4 c1R Ne2 g1Q Bh3 Rc3 Bg3 Ba6 Qb3+ Bc4 Rb6 Qf7 Rc6 Qe7 Ba5 Rd8 a8B Qa7 Bb7 Ne7+ Kf4 Rhe8 h8Q f5 h7 Rd7 Kg5 f4 Be6+ Ke4 Qf8 f3 h8R f2 Qf6 Ra8 Rb8 Rc1 Bd2 f1B Bf4 Nd5 Nbc3+ Kf3 Na4+ Nc3 Kf5 Rc2 Re1 Rc1 Qb5 Nb1 Qa6 Bb3 Qd8 Rc3 Qdb6 Bc4 Qb3 Rd6 Bd7 Bf7 Be6 Rd7 Rd8 Re7 Rd5 Rd7 Rb5 Qc5 Qb6 Ra5 Qa6 Qe7 Nc1 Qc5 Rc2 Qa7 Ne2
1NN1q1Qb/1r2rNN1/2nP1qb1/2n4Q/B3r3/nQ2B1QB/1k1P4/2RK3R b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Nh6 axb3 Nc6 b4 Ng8 b5 Nb8 h4 Kf7 f4 Kf6 h6 e5 b6 c5 a6 g5 d6 c4 a7 e4 h7 g4 b7 e3 h5 g3 h6 c3 Na3 c2 Nc4 e2 Nb6 g2 Nf3 g1R Nh4 Nd7 b8N Rg3 Bb2+ Ne5 Bd4 c1Q Bh3 Qc6 Rc1 Bg7 Be3 Ne7 Qb3 Re8 h8N Nc4 h7 Rg4 Nf7 Na3 h8Q Qcd7 Qh7 Bh8 Qh5 Ba6 Nc8 Bd3 Qb1 Nc6 Qb3 Kg7 f6+ Kg8 f5 Rge4 Nf3 R8e7 Nd4 Q7e8 Ne6 Bb1 Ng7 Rb7 Kf2 e1N Ke2 Nd3 Kd1 Ree7 Na6 Rab8 a8B Rb4 Bb7 Rbe4 Ba8 Rb5 Nb8 Nc5 Bb7 Rb6 Ba6 Kf8 Bb5 Rbb7 Ba4 Kg8 Nh6+ Kh7 f7 Bd3 f6 Bb1 Qe2 Kg6 f8Q Bd3 f7 Kf6 Re1 Ke5 Qg8 Bb1 f8Q Bd3 Bg5 Kd4 Rh1 Bb1 Qg3 Bd3 Qeg4 Bb1 Be3+ Kd3 Nf7 Bc2+ Ke1 Kc4 Qh5 Kb4 Bb5 Kb3 Ba4+ Kb2 Ke2 Rf4 Ke1 Bg6 Ke2 Rfe4 Kd1 R7e6 Qe7 R6e5 Qe6 Qf6 Qc4 Ree7 Qb3+
2rQ1K2/r7/3QQ1k1/2bBQ1Nb/1RPBn3/4P1q1/bbB1n1B1/1N2N1nR b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 d5 Kd4 a5 h4 f5 c4 Kf7 b4 a4 b6 a3 h6 f4 e3 a2 c6 f3 b5 g4 e6+ Kf6 b7 f2 b6 g3 c7 g2 e7 Bg7 Kc5 d4 e8B d3 h5 d2 h7 Bg4 c8B Bf3 h6 Ra4 Bf7 Bg4 Bb2+ Kg5 Bd5 Ra3 Bf5 Ra6 Bc2 Qe8 Kd6 Ra7 Bd4 Nc6 b8Q Nf6 b7 Bh5 Qd8 Qe4 b8Q Kg6 Nf3 g1N Bh3 f1Q Bg2 Qf2 Ne1 Qef5 Qf3 d1B Qh3 Rf8 h8Q Qg3+ Be5 Qe4 h7 Nd4 Qbc7 Rg8 Ke7 Nde2 Qcd7 Qf5 Bd4 Ne4 Q7c7 Bh6 Qe5 Bf8+ Ke8 Qc8 Qce7 Qe6 h8N+ Kh6+ Nf7+ Kg6 Ng5 Rh8 Bd3 Bb3 Bc2 Rg8 Nc3 Rh8 Rb1 a1B Qdd6 Ba2 Rb4 Bb2 Nb1 Ra8+ Qd8 Rh7 Qd6 Rc8 Qe5 Qa6 Q7c7 Bc5 Qce7 Qe6 Kf8 Rg7 Q7d6 Ra7 Qhxe6#
N1N2QQ1/B4PrR/1nN3NP/2Rn3q/2Qn1n2/3qR1r1/k5B1/3b1QKn b - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 a4 a5 axb5 d5 c4 f4 cxd5 e6 e3 a4 exf4 Bc5 f5 Be3 Qg4 Bb6 Qd1 Ba5 bxa5 Qe7 Ke2 Qf6 Ke1 Qd8 d4 Kf7 f4 c5 Kf2 g5 h4 e5 f6 a3 f5 a2 d6 e4 h6 g4 d5 c4 h5 c3 a6 c2 b6 Qd7 b7 Rh7 a7 Na6 b8N Qd8 d7 Nc5 d6 Na4 Nc6 Nb6 Rh3 Ne7 Nf3 g3+ Kg1 g2 Nh4 e3 Ng6 e2 Nc3 e1N Nb5 Nd3 Be3 Nf4 Rc1 Rg7 h7 a1N h8R Nb3 h6 Ned5 Rh7 Nd4 Rg3 Qe8 d8Q Qe4 d7 Qd3 Rf3 Ba6 Qc7 Rg8 a8N Bb7 Rb1 c1Q Nba7 Qc5 Rb5 Bc8 d8Q+ Bd7 Kf2 g1N Nc8 Nge2 Bg2 Ng3 Kg1 Nh1 Ra5 Qcb5 Qf1 Qc5 Bf2 Qcb5 Re3 Qc5 Nc6e7 Ba4 Qc6 Qcb5 Qc4 Qe8 Nc6 Bd1 Rh3 Qee2 Re3 Qh5 Rc5 Re8 Qd6 Re6 Qb8 Re7 Re2 Re3 Re1 Rg3 Be3 Ke8 f7+ Kd7 f6 Ke6 f8Q Qg4 f7 Nf5 Qb5 Nf6 Qg8 Na4 N8e7 Qh5 Qbf8 Kd6 Rc1 N6d5 Bb6 Nd4 Ba7 Nab6 Qb2 Nd7 Qa2 N7b6 Rb1 Kc5 Re3 Bf3 Qa6 Bd1 Rb5+ Kc4 Rc5+ Kb3 Nc8 Kb2 Qb5+ Ka2 Qc4+
3R4/nbk1N2n/PbQ3n1/qB2BK1n/rN1P2N1/q4b1Q/8/N2BQ1BR b - - 0 1 illegal: No possible last move
R1br2n1/5PK1/Qr3n1Q/6B1/1N2qPkn/BB2Q2N/qR6/Qr1n1NB1 b - - 0 1 legal: proof: b4 b5 g4 h5 gxh5 f5 a4 a5 axb5 d5 c4 f4 cxd5 e6 e3 a4 exf4 Bc5 f5 Be3 Qg4 Bb6 Qd1 Ba5 bxa5 Qe7 Ke2 Qf6 Ke1 Qd8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Ke5 c5 h4+ Kh6 f4 g5 d4 c4 d6 a3 f6 a2 f7 c3 d5 g4 d7 g3 d6 g2 b6 c2 a6 Ne7 Kf6 e5 b7 e4 a7 e3 Bc4 e2 Qd4 e1N Nd2 Rf8 Nf1 Qa5 d8B Qb6 Qe3 Rg8 Ba3 c1Q Nh3 g1R Bb3 R1g5 Rh2 Qbc6 Rb2 Q6c5 d7 Qb1 Bb6 Nf3 d8B Qc4 Bd4 Rb5 Bdc5 Na6 b8N Nb4 Na6 Rab8 a8Q Qce4 Qb7 Rb6+ Qc6 Nd3 Nb4 Nf2 Qe6 Nd1 Bd4 Kh7 h6 Re8 h5 Nh4 Qc3 Qbc2 Bg1 Qce2 Qe3 Ng8+ Kg5 Qa6 Qc4 Qa4 Qa6 Rf8 Bf6 Rd8 Be7 Kh8 h7 Kg7 Rc1 a1N Rcb1 Nc2 Ra1 R8b7 Bf6+ Kf8 h8Q Rb8 h6 Qa5+ Be5 Ke7 h7 Qad5 Qg7 Ke6 h8Q Rb7 Kh5 Kf5 Bf6 Qd2 Qgh6 Qh2 Qg3 Nce3 Bg5 Nd5 Qe3 Qhc2 Rc1 Qb1 Rc7 Rb8 Ra7 Qa2 Ra8 Nge7 Qc6 Nf6+ Kh6 Kg4 Kg7 Neg8 Qca4 R8b7 Qh6 Rc7 Bc4 Qa1 Qc2 Qa2 Bb3 Rc3 Qb1 Rc1 Qa1 Rb1 Rh2 Re8 Re2 Rd8 Rb2
1NQn1RK1/2PR4/8/2q4Q/3q1rNn/QPB5/RbkqN1B1/q1bN1n1R b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 f4 Qb6 e4 Kd8 exf5 Kc7 f6 Qc6 f7 Qb6 f5 Bb7 h3 Be4 f6 Bf5 Na3 Kc8 Nb1 Qd8 Qd3 Kc7 gxf5 g4 Qd1 g3 Na3 Ra6 Nb1 Rd6 Be2 Rd4 Bf1 Rg4 hxg4 Kc8 Ke2 Kb7 Ke1 Kc7 Kd2 h5 Kd3 d5 Kd4 e5+ Kc3 a4 b3 g2 b6+ Kc6 b7 e4 Kd4 e3 Ke5 h4 Ke6 a3 c4 a2 g5 h3 g6 d4 g7 h2 Ne2 g1Q Nbc3 d3 Bd2 Ne7 g8N Qd4 Nh6 Bg7 f8R Ng6 Kf7 Nh4 Ng4 Rg8 Be1 d2 Rd8 Rh8 Rd7 Rf8+ Ke7 Bh8 f7 Be5 f6 Qf2 Qc1 d1Q Qa3 Q1d2 Nd1 Qf5 Bh3 Bf4 Bg2+ Qfd5 Rb1 a1B Rb2 Bg5 Ra2 Bb2 Rf1 h1N Rg1 Qa5 Bc3 Ng3 Rh1 Qc7 Qa5 Nf1 Qa3 Qcf4 Qa5 Qd2 Qa3 Qfd4 Qa5 Rh8 f8Q Bf4 Qh6 Rf8 Qh5 Bh6 f7 Bf4 Ng1 e2 Qa3 e1Q+ Ne2 Bh6 Nde3 Qa1 Nd1 Rc8 f8R Bf4 Rg8 Rf8 Rh8 Rf6 Rf8 Bh6 Ke8 Rf4 Ke7 Na6 Ke8 Nc7+ Ke7 Ne6 Ke8 Re4 Kf7 Qd6 Kg8 Nd8 Rf2 Qc7 Rf3 Rf4 b8N+ Kb7 c6+ Kb6 c5+ Kb5 Rf2 Qa7 c7 Qb6 c6+ Qbc5 c8Q Bg5 c7 Bh6 Ba5 Bg5 Bb6 Bh6 Qa8 Kb4 Rf3 Bg5 Ba5+ Kb5 Nh2 Rf5 Rc3 Q2e3 Bb6 Kb4 Ng4 Qed3 Qaa6 Bgc1 Qa7 Qd2 Rf3 Re5 Qa8 Re4 Rf8 Rf4 Ra6 Bc3 Ba5+ Ka3 Qa7 Ka2 Bb4+ Kb1 Ra2 B3b2 Bc3 Kc2 Qa3
r1bN4/1N2nkBR/1n6/4nnPN/N3RKPR/1b2B1QB/2b4R/1r3Q1b b - - 0 1 legal: proof: d4 b5 h4 e5 e4 d5 a4 c5 axb5 g5 hxg5 Ke7 dxc5 d4 f3 Qd5 exd5 e4 f4 Bg7 Ra5 Kd8 Ra1 Be5 fxe5 Ke8 Kd2 h5 c4 a5 g4 f5 b4 d3 Ke3 a4 c6 h4 d6 d2 e6 a3 e7 h3 c5 h2 b6 a2 c7 Ra4 b7 Rh5 d7+ Kf7 e8R Nh6 d8N+ Kg7 c6 Na6 b8Q Nc5 b5 Nd7 b6 Ng8 b7 Ne7 Ne2 Nb6 Kf4 Ra8 Bh3 e3 Ng3 e2 Qf1 d1B Be3 e1N Nc3 Nf3 Na4 Bb3 Rh8 Bc2 Re1 a1N Rh7+ Kf8 Re2 Ne5 Rf2 Rh6 Nh5 Nb3 Rd2 Nd4 Rg2 Be6 c8N Beb3 c7 Rc6 Re2 Rc4 Rf2 Rb4 Nd6 Rb5 c8R Rb4 Rg1 h1B Rc4 Kg8 Qc7 Kf8 b8B Rb5 Kg3 Kg8 Rh2 f4+ Kh4 f3 Kg3 f2 Kf4 Ndf5 N6b7 Kf8 Re4 Rb4 Qc3 Ke8 Ba7 Rb5 Bd4 Rb4 Qg3 Kf8 Qb1 f1B Qbe1 Bb5 Qf1 Bd7 Ba1 Bc8 Rgg2 Nbc4 Be3 Nb6 Rd2 Bg8 Rd6 Rb1 Rdh6 Bc4 Ng7 B4b3 Rh4 N5c6 Bf6 Ne5 Nh5 Ke8 Bh8 Kf8 Bg7+ Kg8 Ne6 Kf7 Ned8+
2rBk3/1N4P1/rR2Q1r1/1bQb2qP/2QNB3/1b1B2N1/3Qq1N1/r3bRK1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 d5 axb5 e5 fxe5 Kd7 c4 Ke7 cxd5 Ke8 Bh3 g5 Bg2 Nd7 Bf1 Ndf6 Qb3 Nh6 Qd1 h4 h3 Nh5 gxh5 g4 Ra3 g3 Ra1 Ng4 hxg4 Qd6 Rh2 Qf6 Rh1 Qd8 d4 a5 b4 c5 e4 f5 d6 h3 d7+ Ke7 g5 g2 Kf2 c4 e6 a4 b6 a3 g6 a2 d5 h2 b5 c3 e5 f4 g7 c2 b7 f3 b8Q Qa5 d8N Qb6+ Qd4 Qa7 b6 Bb7 d6+ Ke8 e7 Ba6 b7 Bc4 Bd3 Qa6 Qc5 Qb5 Nc3 Qb1 Nge2 g1R Ng3 Rg8 Qbc8 Bb5 b8N Ra4 Nd5 Qb3 Nf4 Bc6 Rb1 a1R Nb7+ Kf7 d7 Ra8 d8Q Qc4 Ng2 Bb5 Bg5 c1Q Nc6 R8a6 Nd4 Qe6 Bh4 Qg5 Qa5 Bc4 Rb6 Bb3 Qd2 Rh8 Q8c7 Ke8 Qc4 Rgd1 Rg1 h1B Q7c5 Rh6 Re1 Rdc1 Rf1 Qeg4 Kg1 f2+ Kh2 Rd6 Be4 Qe2 Bd3 Kd7 e8B+ Ke7 e6 Rc3 Nf4 Bd5 Beg6 Rcc1 Bgf5 Ke8 e7 Rg6 Ng2 Rc2 Re1 f1B Kg1 Qd1 Bde4 Bd3 Rf1 Qe2 Qcc3 Bb5 Q3c4 Ra8 Bd3 Rca2 Bfe4 R2a6 Qc7 Rb8 Q7c5 Rc8 Qa5 Qf4 Qc7 Kf7 Bf6 Qg5 e8Q+ Kg8 Qec6 Bb4 Bd8 Be1 Qe7 Qc2 Qec5 Qe2 Bf3 Kf7 Qd2 Qf5 Qf6+ Ke8 Bfe4 Qg5 Qe6+
6Bn/kb2q3/1Q1r1R1B/1RQQP2K/3pr1Pn/Nb2Q3/4rN2/Nn2NB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 h5 Kf3 a5 e4 f5 c4 d5 b4 Kd7 c6+ Kc7 c5 a4 g6 f4 g7 h4 e6 a3 Kg4 h3 e5 f3 Bh6 h2 Kh5 a2 g4 f2 e7 Ra5 e8Q Bb7 b6+ Kc8 c7 Ra4 b5 Be7 Nf3 Bg5 Qc6 Rh7 Na3 Re4 Ne1 Rb4 Rb1 Ne7 g8B a1R Qe2 d4 Qe3 Ng6 Rg1 h1B Rg3 Nh8 Rf3 Rg7 Rf6 Rg6 Qd5 Bc6 Rb2 Kb7 c8Q+ Ka8 b7+ Ka7 Rb3 Nd7 b8N Rc1 Na6 Bb7 c6 Nf8 c7 Qe7 Nc5 Bg2 Rb1 Rb2 Nb3 Re2 Na1 Be4 Qe8 Bc2 c8Q Bb3 Qec6 Bh4 Rf7 Rd6 Rf6 Nfg6 b6+ Ka6 Q8c7 Bg5 Qcc5 Nh4 Q7c6 Rc3 Qf4 Rf3 Qe3 Rf4 Rb2 Re4 Rb1 Ba4 Rb5 Bb3 Qcc1 Ba8 b7+ Ka7 b8N Bb7 Q1c2 Bc8 Na6 Bb7 Rf3 Bf6 Nb4 Bg5 Nbd3 Bf6 Bg2 f1N Nf2 Nd2 Bf1 Bg5 Rf6 Nb1 Qec3 Bd2 Qe3 Ba5 Q2c5+ Bb6 Q6xb6+
2R1Bk2/nb4qr/Qr3N1P/4K1b1/3B1nN1/2BQpN1b/1Q1P3R/rBQ5 b - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 d5 cxd5 f5 e4 h5 exf5 h4 a4 Rh6 axb5 Rh8 g4 Qd6 Ra6 Qg6 Ra1 Qh5 gxh5 Kd7 Nh3 Kd8 Ng1 Ke8 Ke2 e5 Ke3 a5 Ke4 c5 b4 h3 f4 h2 d6 a4 d7+ Kf7 d8Q a3 h6 c4 b6 a2 f6 c3 b7 c2 b5 Nd7 b8B Ra5 b6 Rh7 b7 Rg7 g6+ Ke6 f7 Ra3 Bb2 c1Q Nc3 Rb3 Nd5 Bc5 f8Q Rc3 Bb5 Bd4 Nf6 Rc4 Ba7 Ne7 b8Q Nf5 Bc3 Rg8 g7 Nb6 Qa3 Kf7 Ng4 Rb4 Nf3 Ne3 f5 Qb2 f6 Ned5 Qc1 Nf4 Qa6 Rh8 Be8+ Kg8 Rb1 Be3+ Qd4 Rb3 Qdd3 a1R Qbb7 Bd7 Qb8 Nc8 Bad4 Rb6 f7+ Kh7 f8N+ Kg8 Qbb7 Na7 Nh7 Bc8 Qb8 Bb7+ Kf5 e4 Ke5 Bc8 Re1 h1B Re2 Bg2 Qbb7 Bh3 Rh2 Qa2 Rb4 Qf7 Rc4 Qd7 Qb8 Bb7 Rc8 Qf7 Bb5+ Qf8 Nhf6+ Kf7 Bd7 Rh7 g8B+ Ke7 Ba2 Qg7 Be8 Kf8 Rc6 Bf2 Rc5 e3 Rc8 Bh4 Bb1 Bg5 Qc7 Rd6 Qcb6 Rc6 Qbb5 Rb6 Qbb2
5R2/N2Q2R1/2rrBPbB/N1r1QQ1R/Kbn4n/1Q3Rp1/4Pq2/1Nk2b2 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 gxh5 f5 c4 d5 cxd5 Nd7 a4 Qg5 axb5 Qf6 exf6 Nb8 h4 Kd7 d4 Kd6 Kd2 a5 Kc3 c5 Kb3 g5 b6 g4 b7 g3 h6 c4+ Ka4 f4 b4 f3 h7 c3 b5 f2 b6 c2 h5 Ne7 h6 Bh3 Ra3 Nec6 Rf3 Na7 Qd3 Nd7 Qf5 Rc8 b8Q+ Rc7 b7 Bg2 Rh5 Nc6 Bg5 Bh1 Bh3 c1R Bg4 Rg8 h8R f1B h7 Nde5 Bh6 Ng6 Rg5 Nh4 Rg7 Be7 Bh3 Rc8 Rf8 Rd8 h8R Ne5 Bg4 Rd7 Qe8 Bhg2 b8Q Rc5 Qb3 Nc4 Qeh5 R7c6 Qhg5 Kc7 Qe5+ Rdd6 Be6 Bh3 Qgf5 Bg4 Rhh7 Bh5 Rhh8 Bg6 Rhh7 Rb5 Rhh8 Kb6 Rhh7 Rd8 d6 Ka6 d7 Bb4 d5 Rbc5 d6 Kb6 Rf4 Ka6 Nf3 Kb6 Nfd2 Ka6 Qbb2 Kb6 Kb3 Kb5 Rf3 a4+ Ka2 a3 Kb3 Ne3 Nc4 a2 Na5 a1Q Qa2 Qd4 Qac2 Rdc8 d8Q Nc4 d7 Qf2 Qdc7 Ra6 d8N Rd6 Qa7 Rc7 Ndc6 Rc8 Qd7 Rc7 Qcd3 Rc8 Kc2 Ka4 Na7+ R5c6 Bg5 Rc7 Rh5 Rc8 Bh6 Rc7 Nc3+ Ka3 Nb1+ Ka2 Qee3 Ka1 Kb3 Rc8 Ka4 Kb2 Qde4 Rc5 Q4f4 R8c6 Q5e5+ Kc2 Qff5+ Kd1 Nd2 Kc1 Qb3 Qd4 Nb1+ Qe3 Nd2 Qf2 Nb1+
K2k3r/n2Np2Q/BQ1Rbn2/1r3Q2/2P1N2r/1BnPb1q1/RQ3B2/2BR4 b - - 0 1 legal: proof: e4 d5 a4 b5 axb5 c5 g4 h5 gxh5 f5 exf5 c4 Ra4 c3 Rd4 Ba6 Rxd5 Bc8 Rd7 Kf7 bxc3 Nf6 c4 Ke8 c5 Ng8 Ke2 a5 Kd3 g5 Kc4 a4 Kd5 g4 f4 g3 h4 g2 c6 a3 f6 a2 h6 a1R c7 R1a6 f5 Nc6 h7 Nd4 h5 Nc6 b6 Na7 h6 Rb8 b7 Nb5 Nf3 g1N Bc4 Nd4 d3 Nh3 Bb3 Rb6 c4 Ng5 Rd6 Rc6 Qg1 Nf7 Nbd2 Ne6 Ne5 Bg7 Ne4 Ra8 b8B Ba6 c8B Bb7 Ba7 Nd4 Nd7 Ne6 Qb6 Nd4 Rd1 Ba6 Bb7 Bb5 Bc8 Rc7 Ba6 Nc6 Kc5 Qb8 Kd5 Nfe5 f7+ Kd8 Kc5 Nf6 f8Q+ Ne8 f6 Nf7 Qg8 Ng5 f7 Bd4+ Kd5 Bg1 f8Q Be3 Qf5 Ba4 Qg7 Bb5 Qb2 Ba4 Qb5 Rb7 Bc5 Qc7 Qb6 Na7 Bd4 Rf8 h8Q Nf6+ Ke5 Bc6 h7 Bd5 Qg7 Bf7 h8R Be6 Rh2 Rh8 Rhd2 Rh4 Qgh7 Nh3 Bc5 Nf4 Rc2 N4d5 Re2 Bg5 Bf2 Nc3 Kd4 Nc6+ Kc5 Na7+ Kb4 Bh6 Ka5 Rc8 Qb1 Be3 Ra2 Ke8 Qb2 Qb8 Rc6 Qg3 Rd6 Rbb8 Bb5 Rc5 Ka6 Ra8 Kb7 Re5 Qd4 Kd8 Ba6 Rc8 Qh3 Reh5 Q3f5 Rc5 Ka8 Rb5 Qg7 Rh8 Qgh7 Rb6 Qdc5 Rb5 Qb6+
r3bb1N/5Nn1/q1R2n1p/3P1kQ1/1B1nR1R1/NBQ1R1KP/r1q5/1B4N1 b - - 0 1 legal: proof: b4 c5 bxc5 b5 e4 Qb6 a4 Qc7 axb5 Qd8 f4 d5 exd5 g5 fxg5 a6 bxa6 Bd7 Na3 Be6 Nb1 Bc8 Kf2 Kd7 g4 f5 c4 e5 d4 h6 d6 Ke6 c6 f4 c7 e4 h3 f3 a7 e3+ Kg3 f2 c5 e2 g6 e1N g5 Kf5 d7 Bb7 c8Q Na6 c6 Rb8 a8R Rh7 g7 Qe7 d8N+ Ke4 g6 Nc7 Ba3 Ne6 c7 Nd3 Qe1+ Kf5 Nf7 Nb2 Nh8 Bc6 Bb4 Nd3 R8a6 Nc5 R1a3 Nb7 Bd3+ Be4 Rc6 Nf6 g8B f1Q g7 Nc5 Qc3 Qf7 Qd8 Nfd7 c8N Ra8 Qh4 Qe2 Rb3 Qd2 Na3 Nf6 Bb1 Qb7 Bf7 Qc2 g8R Bd5 Rg4 Qa6 Rh2 Bh1 Re2 Ng7 Ree4 Bf3 Bc4 Nce6 d5 Nd4 Qe1 Bc5 Rbe3 Bf8 Qc3 Be2 Bb3 Bb5 Nb6 Ba4 Nbc4 Bb5 Ne5 Ba4 Rb6 Be8 Nef7 Nge6 Nd8 Rha7 Rc6 Ng7 Ndf7 Qc4 Nb5 Ra2 Na3 Qa6 Qg5+
br3n1Q/B1r5/q1Pq4/R3P3/1QNBRNnN/BRpBr3/4b1K1/3Nk3 b - - 0 1 legal: proof: b4 b5 f4 c5 c4 h5 a4 e5 axb5 d5 cxd5 h4 fxe5 h3 gxh3 c4 h4 Bg4 h5 Bc5 bxc5 Bc8 e6 Ke7 Kf2 Kf6 e4 Kg5 h4+ Kf4 e7 a5 e8N g5 h6 f5 b6 a4 h5 a3 h7 g4 h6 a2 c6 Bd7 b7 Ra5 d6 Qc7 Rh3 Rd5 Qa4 Rd4 Nf3 Qb6 Qb4 Bc8 d7 Qd8 Nc3 Rd3 Nd6 Nf6 Nh4 g3+ Kg1 g2 Nd1 Qc7 d8N Nbd7 b8B Bb7 Ba7 Ba8 Ne6+ Kg4 Bb2 Rb8 h8B f4 h7 f3 Nf4 f2+ Kh2 Rb3 d4 g1R d5 Nf8 Bg7 Qd7 h8Q Ra3 Re3 Rd3 Rb1 c3 Nc4 a1Q d6 Qa6 Ba3 Qe7 d7 Rg3 d8R Rd7 Bb2 Rc7 Bd3 f1B Rd5 Be2 Ba3 Qd6 Rb3 Rf3 Kg1 Kg3 Ra5 Ng4 Bgd4 Ng6 e5 Nf8 Re4 Re3 Nhg6 Kf3 Kh1 Kg3 Ndb2 Kf2 Nd1+ Kf1 Nh4 Ke1 Kg2
1bB1KQ1b/1r6/1P1N3B/nR2B1q1/4q1q1/NPR3Rp/1Q3Bnk/R1Q4r b - - 0 1 legal: proof: e4 d5 f4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 g5 fxg5 Nh6 h4 Bd7 b6 Be6 h5 Bf7 Qb3 Bg6 hxg6 Ng8 Qc2 Nh6 Qd1 Ng8 Kf2 Kd7 Kf3 Kd6 Ke4 h5 d4 e5 f6 a5 Kf5 c5 f7 e4 b3 a4 g7 c4 Kg6 c3 Nf3 a3 Nfd2 e3 Bh3 c2 Ne4+ Ke7 d6+ Ke6 d7 h4 d5+ Ke5 d6 a2 Na3 Qc8 d8B Kf4 d7 Nf6 g8Q Rh5 Bc7+ Bd6 f8Q Rh6+ Kf7 Ra6 d8B Nbd7 g6 Ra7 g7 Nd5 g5 Nc5 g6 Qg4 Qh8 Nb7 g8R Na5 Qb2 Rb7 g7 Rh5 Bd2 c1Q Qdc2 Be5 Nd6 Kg3 Ke8 e2 Bh6 Qcg5 Rhc1 e1Q Rh8 Qee3 g8R Nf4 Qd2 Ng2 Rc3 Qd3 Qdc1 Kh2 Bf6 Bg3 Bd4 Be5 Bf2 Qde4 Rb1 a1B Rh7 Qg4f4 Bc8 Qgg4 Rg5 Qd2 Rf5 Qdg5 Re7 Bf4 Rb5 Bg3 Qbd2 Bb2 Ra1 Bf4 Rg3 Bc3 Qdb2 Bh8 Bd8 Bfe5 Rc7 Bf4+ Be7 Bfe5 Rcc3 Bf4 Ndc4 Bb8 Nd6 h3 Qe3 Q5h4 Rc2 Rd5 Qec1 Qhg5 Rc6 Rd1 Rcc3 Qb1 Bf6 Rh1 B6d4 Qbe4+ Be5
1R2R2Q/5q1P/4N1Bk/1Pb1Qp1R/b1r4R/rQqQ1Nq1/2n1KN1n/2B5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 c5 e4 a5 h4 g5 b4 c4 d6 a4 e6 a3 d5 g4 b6 c3 e7 f6 h6 Kf7 e8R Kg6 b7 c2 b5 g3 h7 g2 d7 a2 h5+ Kg7 h6+ Kg6 d6 Qe7 d8N Bd7 e5 Na6 b8R Bf5 e6 Nb4 d7 Ra3 Nd2 Qf7 Ndf3 Bc5 Nh3 g1Q e7 Qg3+ Nf2 Be4 Ke2 f5 Ne6 Nf6 d8Q Ng4 Rh4 Nh2 Q8d3 Rf8 Rb1 a1Q h8Q Qc3 h7 Bd5 Bh3 Bb3 Bg4 Ba4 Qe5 Nd5 Rb4 Ne3 Bh5+ Kh6 Rbg4 Rg8 Rg5 Rh8 Bb2 c1Q Qb3 Qh1 Bc1 Rg8 Qh8 Nc2 Qe5 Qhg2 Qh8 Q2h3 Qe5 Qhg4 Bg6+ Qh5 Rec8 Rh8 e8Q Rg8 Qed8 Rg7 Qh8 Rg8 Re8 Rf8 Re7 Rd8 Re8 Rd4 Rbc8 Rg4 Rb8 Rc4 Rgxh5+
n1Q1kr1b/Q3P1n1/5pqB/4B3/1QrNbR2/1QN4B/3R1qP1/q1BKN3 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 e4 c5 d4 h5 d6 h4 b6 h3 b7 h2 g6 c4 e6 c3 g7 c2 e7 Rh5 a6 Rg5 a7 Re5 d5 Qd7 Bd3 Re6 e5 Nh6 g8Q Qc7 Ra2 Nd7 b8B Nf5 Qgg4 Qa5+ Qb4 Nc5 Nf3 Nd4 Bf5 Ne4 Rf1 h1Q Bh3 Ne2 Nc3 Nf6 Kd2 Qa6 Ne1 Qb6 Rf4 Qhg1 Bc7 Rb8 a8Q Ng3 Qa7 Bg7 Rb2 Bb7 Qf3 Kd7 e8N Bh8 Ng7 Qgc5 Nf5 Ne8 Nd4 Nf5 Qg3 Rh6 Ke2 Rh4 e6+ Kc8 Qd3 Nfg7 Qdc4 Qcc6 Qcb3 Ra8 Bb8 Kd8 d7 Nc7 Ra2 Qcc5 Rb2 Ke7 d8B+ Ke8 d6 Be4 Bg5 f6 e7 Qf5 Bh6 Qg6 Be3 c1Q Rd2 Qa3 Kd1 Qaa6 Re2 Qc5 Bc1 Qa1 Rd2 Rg4 Ndc2 Qf2 Nd4 Nd5 Bc7 Rc8 Bb8 Nb6 Bc7 Na8 Bb8 Rc4 d7+ Kf7 d8Q Rg3 Qdc7 Ke8 Nde2 Rd3 Qc8+ Rd8 Nd4 Kf7 Qcb7 Rf8 Be5 Ke8 Qc8+
1RBQ4/bK1p2nQ/4b3/1n3N1b/1RBP1qrB/4Q1BN/6Pb/Qr2R2k b - - 0 1 legal: proof: f4 e5 fxe5 b5 h4 c5 b4 g5 hxg5 h6 gxh6 Be7 bxc5 Nc6 a4 Bf8 axb5 Nb8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 e4+ Kf4 c4 Kg3 h7 f5 c6 a5 c7 a4 e6 f4 e7 a3 Kc5 f3 Kb6 f2 e8R a2 d4 Ba3 e5 Ra5 c5 Bb2 c6 Ne7 e6 Bb7 Nc3 Ba3 Bg5 Nf5 e7 Bd6 Bc4 f1B Rb1 a1B Nd5 Rg8 h8Q Na6 Qh7 Bc3 Rb4 Qb8 c8Q Nc7 Ne3 Be2 Qd8 Ng7 Nh3 Ra1 Re1 Kh2 Nf5 Rb1 Bh4 Bh5 Qa4 Bb2 Qa1 Ba3 Rf8 Be5 e8Q Bg3 Qe3 Be5 Re2 Kh1 Re8 Bh2 Reb2 Nce6 c7 Be4+ Ka6 Bd5 c8B Qf4 b6 Nc7+ Ka7 Be6 b7 Nb5+ Ka6 Bd5 b8B Bdf7 Kb7 Be6 R4b3 Bc5 Rb4 Qg5 Bbg3 Qf4 Ra2 Bb6 Ra8 Ba7 Re7 Ne8 Rb8 Rg4 Qea3 Ng7 Qb3 Bef7 Re2 Bg8 Qe3 Be6 Re1+
1N1KQ1B1/b1RR1b1B/b2R4/3N1N2/2n2PR1/1q3N1q/prn1QB1P/n1k5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 c4 d5 cxd5 Kd7 a4 Ke7 axb5 Ke8 Ra3 a5 Ra4 f5 Ra1 Ra6 e3 Rf6 fxe5 f4 Ne2 f3 Ng1 Rf4 exf4 Qd7 Bg2 Qd6 Bf1 Qd8 Kf2 Ke7 Kg3 c5 Kh4 c4 Kg5 c3 d4 a4 b4 c2 h6 g6 b6 f2 h7 a3 b5 a2 b7 Nh6 e6 Kd6+ e7 Ng4 b6 Nc6 b8Q+ Qc7 e8B Be6 b7 Ne3 Kf6 g5 Qe2 g4 Nf3 g3 Bg6 g2 Qe8 g1N b8N Na7 Nc3 Nc4 Be3 Bf7 Rc1 Qc8 Bf5 Rg8 h8N Nb5 Ng6 Nba3 Ne7 Rg2 Bh7 Qh3 Bg8 Rg5 Bg2 f1B Bf2 Rg4 Qe4 Ne2 Rg1 Rg3 Bh1 Rg2 Nf5+ Kc7 d6+ Kb6 d7 Ka5 d8R Kb4 d5 Kb3 d6 Kb2 d7 Nd4 Qe3 Bc5 Qe2 Nb3 Nd5 Ba7 Ke7 Na1 Bh7 Rg6 Rg4 Rb6 Rc8 Rb5 Rd1 Rb3 Rd3 Kc1 d8R Rb2 Rd7 Nd2 Nb6 Bg6 Ng5 Kb1 Qe6 Bh5 R3d4 Ba6 Bd5 Ndc4 Kd8 Bg6 Qe5 Bh5 Bdg8 Bf7 R4d6 Qb3 Bh4 c1Q Nf3 Qf1 Nd5 Qh3 Qe2 Kc1 Bf2 N3c2 Rcc7
1kBb2Q1/q1n1Rn2/1Qq2RRb/2BP1NR1/NQ4P1/b3K3/2NN1np1/5r2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 f4 f5 g4 b4 e4 b3 exf5 a6 f6 Nd7 f5 Nb6 f7+ Kd7 f6 Kd6 axb3 Nd7 b4 Nb8 b5 Kd7 h3 a5 Ke2 Ra6 Ke1 Rc6 Qa4 Rc3 Qc2 Rf3 Qd1 Rf5 gxf5 Ba6 Qg4 Bb7 Qd1 Bc8 b6 g5 Be2 g4 Bd3 g3 Bf1 Ba6 Nf3 Be2 Ng1 Bg4 hxg4 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 Kc8 b4 h5 d4 c5 b7+ Kc7 b5 e5 d6+ Kd7 b6 g2 d5 a4 Qb3 a3 Nc3 a2 Ke3 e4 Qb4 h4 Na4 h3 Ba6 h2 Nf3 c4 Re1 h1N Ba3 c3 Nd2 Bg7 f8Q c2 f7 c1B f6 Nc6 b8R Rh7 b7 Nge7 Qg8 Qc7 f8R Ne5 f7 N7c6 Ra8 Rh4 b8Q Nf2 Q8b6 Rh1 Bb7 Na7 Rb1 a1Q Rae8 Ned3 Re5 Bh6+ Rg5 Ne5 Rb3 Qa2 Rc3 Qc8 Rc6 Nb5 Re2 Nc7 Re1 Qe8 Re2 Kd8 d7 Rf1 Rd6 Ke7 d8N Qc6 Rg6+ Kd7 Ne6 Qa1 Nd4 Bb2 Kf4 e3 Nf5 Qa2 Re1 e2 Ke3 Qa1 Qb3 Qa2 Bc5 Ba3 Q3b4 Qa1 Re8 Qa2 Ree6 Qa1 f8N+ Kd8 Qd4 Nf7 Ref6 Qa2 Qdb4 Qa1 Ba8 Kc8 Bb7+ Kb8 Ne6+ Bf8 Rc1 e1B Ned4 Qa2 Nc2 Qa1 Qh7 Be7 Qg8+ Bd8 Nb3 Bc3 Nd2 Be5 Re1 Bf4+ Kf3 Qd4 Re7 Be3 Rh5 Bh6 Rhg5 Qd3+ Kf4 Qa6 Ke3 Qa7 Bc8+
RB1B3b/2K5/2n2p1q/2bP3R/1N2QQ1B/NBq2R1P/1rnQ4/q4bQk b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Nh6 d5 Ra5 bxa5 Ng8 Kf2 Ke7 Kf3 g5 Ke4 c5 d4 c4 a6 f6 e6 Kd6 a7 g4 a8R g3 e7 g2 e8Q a3 h6 c3 b6 c2 b7 a2 h7 Qc7 Na3 Qc5 Bg5 c1Q Bh4 Be7 Nf3 g1B Qea4 Q5c3 Ne5 Nc6 Qd2 Na7 b8B+ Qc7 Nc6 Bd7 Nb4 Bh3 e3 Bf8 Bc4 Bg7 Bb3 Qc6 Rf1 a1Q Rf3 Bf1 Kf5 Qb7 e4 Nb5 e5+ Ke7 e6 Kd6 Ke4 Ne7 Qa7 Rc8 h8Q Nc6 Qhh6 Bh8 e7 Rg8 e8Q Rg2 Qhe3 Qc8 Qg6 Qf8 Qf5 Qh6 Qff4+ Kd7 d6 Re2 d5 Nbd4 Qa4 Nc2 Kf5 Bf2 Qee4 Bc5 Qee3 Qa5 Qg1 Rf2 Na2 Q5c3 Nb4 Kd8 d7 Ke7 d8B+ Kf7 Bg3 Kg7 Ke6 Kg6 Kd7 Kh5 Kc7 Re2 Qfe3 Kg4 Qe4+ Kh3 Qef4 Ne5 Qe8 Nc6 Qee4 Rg2 Qge3 Rf2 Bh4+ Kg2 h3 Bb5 Re1 Bf1 Re2 Kh1 Q3d4 Rh2 Rg2 Be7 Rg5 Bc5 Rh5 Ne3 Qc1 Rb2 Qcd2 Nc2 Qg1+
Q6N/1rQnrN1n/1B1pqP1b/1B2nR1P/2R5/2NqB3/2R2R2/1qkN2K1 b - - 0 1 legal: proof: e4 c5 g4 b5 d4 f5 dxc5 b4 exf5 b3 axb3 Na6 b4 Nb8 b5 Ba6 Bg2 Bb7 Bf1 Bc8 b6 a5 b3 h5 gxh5 a4 Bb5 a3 Bf1 Ba6 Qd4 Bb5 Qd1 Ba4 bxa4 Qc8 Ke2 Qc7 Ke1 Qd8 h4 Kf7 c4 Kf6 f4 g5 Kf2 e5 b7 a2 c6 e4 c7 g4 c8R Be7 h6 Bb4 h5 Qf8 a5 Nc6 b8B Ra6 c5 Na7 h7 Re6 a6 Qe7 c6 Qc5+ Be3 Bd2 c7 Qc4 Qc1 Nc6 a7 Qd3 a8Q Ne5 Nh3 g3+ Kg1 g2 Bba7 Re7 Qc5 Bc1 Nc3 Bd2 Re1 a1N Rh2 Nb3 Bb6 Bc1 Qc4 Nc5 Nf2 Bd2 Re2 d6 Nfd1 Ncd7 Rf2 Bc1 Rb8 Bd2 c8R Bc1 Qc7 Bd2 Bec5 e3 Bd4 e2 Be3 e1Q Rb7 Kf7 f6 Ke6 f7 Kf5 f8N Ngf6 Ng6 Rg8 h8N Rgg7 Ra7 Nh7 Nf7 Kg4 f5 Kg3 Bed4 Bh6 f6 Qee4 Rd2 Kf3 Ngh8 Qd5 Rb7 Qe6 Be3 Rg4 Ba5 Rb4 Ra7+ Rb7 Bab6 Qc2 Bb5 Qe4 Na2 Qd3 Ra5 Ke4 Rc2 Kf3 Rc4 Ke2 Nac3+ Ke1 Rf4 Bg5 Rf5 Bh6 Rf2 Qb1 Rf5 Nc4 Qcb8 Qd3 Ra2 Qb1 Rc2 Nce5 Rc4 Qa2 Qc7 Qa1 Nf2 Qd1 Rb2 Qdd5 Rd2 Qd3 Rh3 Ng5 Kh2 Nh7 Rhf3 g1Q+ Kh3 Qgf1+ Kh2 Qb1 R3f4 Qfd3 Kg1 Qdc2 Rd5 Qe2 Nfd1 Qd2 Rf2 Qe2 Bed4 Kd2 Be3+ Kc2 Rd2+ Kc1 Bf4 Qee4 Bfe3 Qed3 Rc2#
K1knb3/6NR/2PqN3/3N2BP/1Q1qbrR1/1BNp3Q/1Q1BqnQ1/5b2 b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 d4 b5 axb5 a6 dxc5 h4 g3 Qc7 g4 Qd8 Bg2 g5 Bf3 a5 Nh3 Rh5 gxh5 g4 Kf1 g3 Ke1 Bh6 Bg2 Bf4 Bf1 g2 Ng1 Bg3+ hxg3 Ra6 Nd2 Rh6 Nb1 Rh8 Kd2 d5 Ke3 Kd7 Kd4 f5 b4 h3 c4 a4 e4 f4 g4 h2 c6+ Kc7 Kc5 d4 e6 f3 g5 a3 g6 f2 e5 a2 e7 Nh6 e6 Re8 g7 Bd7 g8Q Ng4 b6+ Kc8 b7+ Kc7 b5 Nh6 Qa4 Ng4 Qb4 Qc8 Ne2 g1Q Nf4 Ne5 Nc3 Nf3 Qg2 Rh8 e8N+ Kd8 Kb6 Nd2 Ka7 Rh7 c5 Nf3 c7+ Ke7 b6 Bb5 Ng7 Qg8 c8Q Rh8 Bc4 f1B Ka8 d3 Bd2 Qe3 Bb3 Qf8 Rg1 Nc6 b8B h1B b7 Qe2 Ba7 Qd8 b8Q Nh2 Bb6 Qd6 Bd8+ Kf8 Qbb7 Ng4 Bg5+ Nd8 Nfd5 Be8 c6 Nf2 e7+ Kf7 Qch3 Rf8 Qge4 Bf3 Rg4 B3g2 Ne6 Bf3 Re1 a1Q+ Qa3 B3g2 Qbb4 Bh1 Qeg2 Qb2 Qgh2 Be4 Q2g2 Qa1 Nb1 Qd4 Nbc3 Bd7 Ra1 Ke8 Qb2 Rf5 Ra7 Rf4 Nf6+ Kf7 e8N Ke7 N8c7 Be8 Ng7 Nf7 Rb7 Kd8 Nfd5+ Kc8 Nce6 Nd8 Nf5 Nh1 Rh7 Nf2 Nfg7
Br1k4/2NNbP2/RB4QR/q3p3/rrB4b/QN3B1q/P1R5/1K2Rb1n b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Nb8 f3 Ra6 f4 Ra8 fxg5 Be6 h4 Nf6 g4 Qd7 h5 Ng8 g6 Nc6 g5 Ne5 g7 Ng6 hxg6 Qd8 Rh5 Bd7 Rh1 Bc8 d4 b5 Kd2 c5 Kc2 h5 f6 h4 a6 e6 a7 b4 d6 h3 d5 c4 Nd2 c3 Nb3 h2 Bc4 Bb7 Nf3 Qb6 d7+ Kd8 Ne5 Ba6 Qf3 Rh5 Kb1 Qf2 Be3 Ne7 g8R Bc8 g7 Rh8 g6 Rb8 a8B Qd2 f7 Nf5 Bb6+ Ke7 d8N Ba6 Nd7 e5 Ne6 Rh4 Nc7 Ng3 d6+ Kd8 Rh8 Rd4 g8B Be7 Rc1 h1Q g7 Qh3 Rh6 Nh1 Bh7 Qe1 Bhe4 c2+ Kb2 Qd2 Qe3 Bb5 Bf3 Re4 Re1 c1B+ Kb1 Bh4 Re2 Ba3 Rf2 Qd5 Rc2 Ba6 Qc3 Qa5 Qd3 Bc1 Qc3 Bcg5 Qb2 Be7 g8Q+ Bf8 Qg6 Bfe7 Qa3 Rg4 Bcd5 Bf1 Bc4 Re4 Kb2 Rd4 Re1 Re4 Nd4 b3 Kb1 b2 Nb3 Rf4 Ba7 Rf6 Nf8 Re6 d7 Ra6 Nc1 Qa4 Bg1 Bd6 Be3 Ke7 d8R Bc5 Rd6 Ra7 Rb6 Kd8 Nd7 Bce7 Bg1 Ra5 Ra6 Qb5 Bb6 Ra4 Rh2 Qc5 Kc2 b1R Rg2 Rbb4 Nb3 Qd5 Kb1 Qa5 Rc2
8/NN1bP1r1/nq2Nn2/2P1B1R1/6qQ/1bB2k2/p1NRbQ2/QQn1KB2 b - - 0 1 legal: proof: d4 b5 g4 e5 f4 c5 fxe5 a5 dxc5 f5 a4 g5 axb5 f4 h3 Bh6 h4 Ra6 Nf3 Rf6 Ng1 Rf5 gxf5 g4 Ra4 Ne7 Ra1 Bg5 hxg5 Ng8 c6 Kf7 e4 d5 c4 h5 Ra2 g3 b4 d4 b6 h4 c7 g2 e6+ Kg7 b7 a4 c5 d3 b5 h3 e5 a3 g6 Kh6 f6 Kg5 g7 h2 f7 Kf5 f8Q+ Ke4 b6 Qd6 Bb2 Qd4 Ne2 g1N Bc3 Qb4 Nd4 Ne2 Rg1 Nh6 g8Q h1B Qh7+ Nf5 Rg5 Na6 b8B Rg8 b7 Rg7 Qh4 Bd7 c8N Ne7 Na7 Ng8 Bd6 Ke3 b8Q Bd5 Rb2 a2 Na3 Qb3 Qa1 Nc1 Rf2 Ke4 Nac2 Qb5 Rfg2 Qa5 Qbb1 Bb3 e7 Qd8 e8N d2+ Kf2 d1Q e6 Qb6 e7 Qf3+ Ke1 Qg4 Be5 f3 Ne6 f2+ Kd2 Kd5 Qf4 Nf6 Qfg3 Ke4 Nd6+ Kd5 Nb7 Ke4 Bb5 f1B Ke1 Bfc4 Rd2 Bd3 Qg1 Kf3 Bc4 Be2 Bd3 Bd1 Bf1 Be2 Qgf2+
rn2bB2/3RP1Q1/k1P4N/4QB2/1q6/Nrn1N1BN/pBK2n2/qR3r1Q b - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 b4 gxf5 b3 axb3 g4 b4 Be7 b5 Bg5 hxg5 Qf6 Nf3 Qb6 Ng1 Qd8 Kd2 a5 b4 h5 c4 d5 e4 Kd7 e6+ Kc7 c6 Kb6 e5 h4 f6 d4 f7 h3 f8B g3 e7 a4 e8N h2 c7 d3 g6 a3 e6 a2 g7 g2 e7 Rh7 c5+ Kb7 c6+ Kb6 Nd6 Be6 c8Q Ra4 Nh3 g1R Nc4+ Ka7 b6+ Ka8 b7+ Ka7 b5 Na6 Bb2 Qb6 Nba3 Rb4 Rb1 Nb8 Ne3 Bf7 Qcg4 Nh6 g8N Rb3 Qg7 Ng4 Nh6 Nf2 Qh5 Qc5 b6+ Ka6 Bg2 Rf1 Be4 Qb5 Bf5 Be8 Rg1 h1Q Rg4 Rb4 Rd4 Rh8 Rd7 Rb3 Qd1 Qb4+ Kc1 d2+ Kc2 Qg1 Qf3 d1N Qe4 Ka5 Qh1 Na6 b8Q Nc3 Qbh2 Nb8 b7 Ka6 Qf4 Qg4 Qc7 Qgd4 Qce5 Nd5 Bc1 Qa1 Bb2 Nc3 Rd5 Nd7 b8B Rg8 Bc7 Nb8 Rd7 Bf7 Qee4 Bh5 Bg3 Bf7 Rd2 Nd7 Qee5 Bg6 Qgf6 Rh8 Bg7 Ra8 Bf8 Be8 Qg7 Nb8 Rd7
4Q1nQ/2RP1bpN/Pn4q1/2RR4/b7/kq2NrB1/1R3N2/1B1BnbKN b - - 0 1 legal: proof: c4 h5 d4 a5 e4 d5 cxd5 Kd7 g4 a4 gxh5 a3 d6 Kc6 d7 Kb6 bxa3 Ra5 a4 Ra8 a5+ Kc6 d5+ Kd6 Ke2 Ke5 Kd2 b5 Ke1 Kf6 e5+ Kf5 Ba3 Ra6 Bc1 Rd6 exd6 Kf6 f4 e5 Qc2 e4 Qd2 Be7 Qd1 Kf5 Qa4 Bf6 Bb2 Be5 fxe5 Kg5 Bd4 Kh6 Bb2 Kh7 Qd4 Nf6 Qa4 Kg8 Bc1 Kf8 Qd1 Ng8 Kf2 f5 a4 c5 h4 f4 a6 c4 h6 b4 e6 b3 h5 b2 e7+ Kf7 e8B+ Kf6 a7 Ke5 a8N f3 h7 c3 a5 c2 h6 Ba6 Nd2 Kd4 Rh5 Kc5 Qe2 Kb4 Bg6 b1B Ra2 Bd3 a6 Qa5 d8N Qa4 d7 Bb5 d6 Ne7 Rb2+ Ka3 Nc7 Nbc6 Nd5 Ng8 Ne6 Nb8 d8R Be8 Nf8 Qc4 Nh3 e3+ Kg1 Qc3 Nf2 Ba2 Nde4 Qc4 Ng3 Nf6 Ngh1 Rg8 h8R Nbd7 h7 Nb6 d7 Qb3 Rc8 Bf7 Rc7 Bb1 Qe1 e2 Bf4 c1Q Ne3 Qc6 Rd5 Bc2 Bg3 Qe6 Bg2 Qe4 Bh5 Qg6 Bh3 Bd1 Bf5 Bc2 Rdc5 Bd1 Bb1 Bc2 Qc3 e1N Qe5 Bd1 Qe8 Bc2 Ne6 Rf8 Ng5 Ng8 Rd5 Ne7 Rg8 Bd1 h8Q Bc2 Nfg4 Bd1 Nh7 f2+ Kh2 f1B Ngf2 Qb4 Bf3 Ba4 Bd1 Qb3 Kg1 Be6 Rbc2 Rf3 Rb2 Bf7 Rf8 Ng8 Rdc5 Be6 Rff5 Bf7 Rfd5
1NBbRn1k/1np1q1B1/r1B2R2/3q1Bn1/1Rb2P2/3R1Q2/1P2Q1Nq/2K1Q3 b - - 0 1 legal: proof: a4 b5 axb5 d5 c4 f5 cxd5 g5 e3 g4 f3 f4 fxg4 Qd7 exf4 Qd8 h4 a5 g5 Nc6 g4 Nh6 h5 Nd4 g6 Ng8 g5 Ra6 g7 Rg6 hxg6 Nc6 Qc2 Nb8 Qa4 Bd7 Qd1 Bc8 d4 h5 Kd2 e5 b6 a4 b7 a3 d6 a2 d5 e4 d7+ Ke7 d6+ Ke6 Na3 h4 Qe1 h3 Nc2 h2 Bd3 Rh5 Ne3 Be7 Nf3 Rh8 Ng2 Rh7 Nd4+ Kd5 Nc6 Qf8 d8R Ke6 d7 Qf5 Re8 Rh8 d8R Nh6 g8Q+ Qf7 g7 Nf5 g6 Na6 b8Q Kf6 Qa8 Nc5 Nb8 e3+ Kc2 e2 Qf3 Nd6 Bf5 Rh5 Bd2 Nd7 Kc1 Rh6 Bb4 Ba6 Qf8 Nb7 g8B Bd3 g7 Bc4 Bgh7 Rg6 g8B Rh6 Rg1 h1Q Bh3 Qh2 B7f5 Rg6 Qh6 Qh7 Qhh5 Kg7 Bd5 Ra6 Bc6 Nf8 Rd3 Kh8 Bc8 Bh4 Bhf5 Bd8 Qhg4 Qg8 Be7 Qd5 Bg5 Bf6 Bh6 Bd8 Qa5 e1N Qd2 Nc2 Qe1 Nd4 Qfe2 Ne6 Qgf3 Ng5 Rh1 Qg3 Rh4 Qh2 Rg4 Nh7 Rg6 Ng5 Rd6 Ra4 Rf6 Ra6 Rb1 a1Q Re4 Bb5 Rb4 Qa3 Ra1 Bc4 Ra2 Qb3 Ra5 Qd7 Re5 Qa2 Re8 Qe7 Rc3 Qa5 Rd3 Qd5 Bg7+
3q2q1/1P2BBPR/1Q5r/k2b2q1/1N1KRBQ1/1B3N2/N1r1Nnp1/1R1nn3 b - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Qf6 f4 Bh6 fxe5 Bg5 hxg5 Qd8 Kf2 Kd7 Ke3 c5 b4 Kc7 d4 Kb6 g6 h5 d6 a5 d7 c4 f6 g3 e6 g2 d5 c3 f7 h4 f8B c2 d6 h3 g7 h2 e7 a4 e8R a3 Nd2 a2 Kd4 Nf6 e4 Ra3 e5 Ng4 e6 Nf6 e7 Na6 Ndf3 Qc7 d8N Rh6 d7 Ra4 Nc6 Rh8 d8Q Bh3 Ne2 Be6 Rb1 a1N Bf4 c1Q Qd6 Ra2 Qa4 Kb7 b6 Nd5 b5 Ne3 Nb4 Rc2 Na2 Bd5 Qdb4 Qd8 Qab3 Ka8 b7+ Ka7 b8N Kb6 Nc6 Nd1 Q4a4 Nc5 Ncb4 Rh6 Qb2 Kb7 b6 Nd3 Qbb3 N3f2 Qd7+ Ka8 b7+ Ka7 Qg4 Kb6 Qe3 Kb5 Qee6 Qa3 Qeg6 Qaa5 Qb6+ Ka4 Neg1 Qaa8 Bc4 Qac8 Ne2 Qf5 Re1 h1Q Rf1 Qh4 Rh1 Qf7 Rh2 Qg5 Bb3+ Ka3 Rh3 Qg8 Rh1 Rd6 Rh7 Rh6 Bb8 Rb2 Bf4 Nc2+ Kc5 Ne1 Kd4 Rd2+ Kc5 Rc2+ Kd4 Qc7 Rd8 Bf7 e8B Bd5 Bf7 Qb8 Re8 Qbd8 Bc4 Ka4 Re4 Nh1 Be7 Nhf2 Qbe6 Ka5 Bb3 Rh2 Qd6 Rh6 Qb6+
3R1bN1/N1bQ1B2/rPrb1Rnn/4R1p1/R2K4/k3NPn1/4r2N/1Q2BQ2 b - - 0 1 legal: proof: g4 d5 h4 g5 f4 f5 gxf5 b5 a4 d4 axb5 d3 h5 Be6 cxd3 Ba2 d4 Qd6 d5 Qg6 hxg6 Bb3 Ra2 Bc2 Ra4 Be4 Ra1 Bf3 exf3 Kd8 Ra6 Kd7 Ra1 Ke8 Ke2 Kd7 Ke3 Kd6 b4 c5 d4 a5 f6 h5 g7 e5 b6 h4 f7 c4 f5 c3 b5 c2 b7 e4 b6 a4 f6 a3 Bd2 c1N Nh3 a2 Nf4 h3 Ng2 h2 Bc4 Nd7 b8N Ra5 Be1 Be7 f8Q Ra8 f7 Ra7 Nc6 Ne5 Nd2 Rh6 Nf1 Ra8 Na7 Ng6 Rg1 h1R Nh2 Ne2 Qe8 Nf8 Qb1 Ng6 f8R Ng3 Qeb5 Bd8 Bb3 Bc7 Qf1 Re8 Rf6+ Re6 Kd2 e3+ Kc3 e2 Ne3 Nh5 Rg4 Ng3 Re4 Rg1 Bd2 e1B Re5 Rg2 Kc4 Re2 Bc3 Rh8 Kd3 Nh6 g8N Bd2 Kc4 Bc1 Be1 Ba3 Kd3 Kd7 Bc4 Rc6 d6 Bc5 d5 Bb4 Ne7 Ra8 Kd4 Ba3 Ng8 Bb4 Nb5 Ra6 Bb3 Kc8 d7+ Kb7 d8Q Bbd6 Na7 Bf8 Qd7 Bd6 Qc2 Bf8 Rc1 a1B+ Qb2 Bd6 Rc4 Bf8 Ra4 Bd6 Qc3 Bb2 Bc4 Bba3 Qb3 Bf8 Qb1 Bad6 Rb4 Ra1 Bb3 Ka6 Ba2 Ka5 Rc4+ Bb4 d6+ Ka4 Bb3+ Ka3 Ba2 Bd2 Rb4 Bc1 Bf7 Bd2 Qdf5 Ra2 d7 Bfd6 Rc4 B2b4 d8R Bf8 Qd7 Bbd6 Qe4 Kb2 Qef5 Ra6 Qb1+ Ka3 Ra4+
1QNr3Q/RBQ1N3/5Bkp/Q1R3B1/4bbNK/1b1P2nb/nP1B1b2/7q b - - 0 1 illegal: No proof kernel
2b5/1QB1R3/R1r2p1K/b1bq2Q1/1P1nB3/1N2b1nB/1N1Q1P2/1kQRRb2 b - - 0 1 illegal: No possible last move
1b1bQR2/1N6/1q1P1QnB/Q2BNr2/1r6/1N1pNQk1/2rP1R2/4rRKb b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 d5 exf5 b4 c4 d4 a3 Nd7 axb4 Nb6 b5 Nd5 cxd5 Ra6 Qf3 Ra7 Qd1 Ra8 h4 Kf7 f4 Kf6 Kf2 g5 a6 e5 a7 c5 h6 e4 d6 c4 b6 d3 b7 c3 b8Q g4 h5 c2 h7 Qc7 h6 Qd8 Na3 Qa5 Bb2+ Qe5 Nf3 c1B Nc2 g3+ Kg1 g2 Ne3 Bg7 Nd4 Bf8 Nb3 Bd7 Rh2 Be7 Qf3 Be6 Qe8 Rb8 a8Q Bd5 Qa5 Rb4 Bc3 Bb2 Be2 Rb7 Rf1 Bd8 Bd4 Ne7 Bb6 Rf8 h8N Qe6 h7 Rb8 Ng6 Bd4 Ne5 Ng6 h8N Qd7 Bc5 Rb4 Nhf7 Qb7 Ba7 B4b6 Bd1 Bdc7 Nd8 Bb8 Be2 Qa6 Nb7 Bd8 Bd1 Qb6 Bc2 Rh8 Bb1 Rh5 Ba2 Kg7 f6+ Kh6 f5 Kg5 f7 Bc6 Kf2 g1R f8Q Bd5 Rg2+ Kh4 f6 Rf5 f7 Bc6 Qg7 Bd5 f8R Rh1 Ra1 Rc1 Qgf7 Rc6 Rf1 Rc2 Kg1 Bc6 Rgf2 Bd5 N3c4 e3 Qg7 e2 Ne3 Bg5 Qf6 e1R Qe2 Bh1 Qf3 Qc5 N3c4 Qc7 Be3 Qb6 Bf4 Rb1 Ne3 Re1 Qg7 Bd8 Bh6 Bbc7 Nc1 Bb8 Bd5 Rc7 Nb3 Rc2 Qe4+ Kh3 Qf6 Kg3 Qf3+
1b3q2/Rr1B4/RP4RN/1B1p4/bbr1PQBk/2n5/4Q1Q1/1Q1NBKbr b - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 Nc6 gxf5 g4 a4 Nd4 axb5 Ne6 Bg5 Bg7 Bc1 Ng5 hxg5 Bf8 b4 Ke7 c4 a5 e4 h5 g6 d5 f6+ Ke6 b6 g3 g7 g2 b5 h4 c6 a4 b7 h3 b8Q h2 c5 a3 f7 a2 c7 Rh3 c6 Qe7 Bd2 Re3+ Qe2 Qb4 Nh3 g1B Nc3 Qa3 Nd1 Ke7 e6 Kf6 e7 Qc1 e8Q Bb4 Ng5 Bg4 c8B Qc4 c7 Rb3 Bd7 Ne7 c8B Ng6 Qg8 Nf4 f8Q+ Kg6 Qb7 Kh5 Nf7 Kh4 Nh6 Qc5 Qff7 Bh5 Bg4 Ra4 Bcd7 Qf8 Qb8 Ne6 Qff4 Be8 Qb6 Nc7 Qb7 Bgc5 Rg1 h1R Rg3 Rb2 Ra3 Bg1 Qb6 Ra7 Ra6 Rc2 Qb8 Rc4 Qb6 Bh2 Kf2 Rb7 Be1 Bg1+ Kg2+ Bf2 Ra7 Bg3 Qg1 Bf2 b6 Nb5 Ra6 Rh3 Qh1 Bg3 Kg1 Nc3 Qhg2 Rh2 Qgf7 Rh3 g8R Rh2 Rg6 Rh3 Bc8 Ba4 Bcd7 Rh2 Qc1 Rh3 Qff4 Rh2 Rb1 a1B Rb3 Bb2 Qb1 Bc1 Ra3 Be3+ Qef2 Bd4 Bd3 Bdc5 Kf1 Be3 Qd2 Bg1 Qde2 Rh1 Ra7 Rcc7 B3b5 Rc4 Qff3 Bb3 R3a6 Ba4 Nf2 Be5 Qf4 Bb8 Nd1+
2n1KN2/1RR3PR/3r1qp1/3Q1R2/1B1nn2r/PBBQ3k/1b1B1N2/3r2rN b - - 0 1 illegal: No possible last move
3r2QN/1Rb4B/2Rq1QQ1/1Qn3q1/1kB3rr/2r3R1/Pp2NPB1/BK2n3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 Kd7 d4 Kd6 Kd2 h5 Kc2 b5 g6 c5 f6 e5 a6 c4 g5 b4 f7 c3 a7 e4 g7 e3 g6 h4 Rh3 e2 Na3 e1Q Bc4 b3+ Kb1 Qe3 Qg4 Qc7 Rg3 h3 Ne2 h2 Nb5+ Ke7 d6+ Kf6 d5 Ke5 d7 h1R d8Q Rg1 d6 Nh6 g8Q Nd7 g7 Ba6 Qg6 Ng4 Qc8 Nc5 d7 Qd6 d8R Qg5 Rd7 Rh4 Rb7 Nh2 Qc6 Rd8 a8B Rg2 Bb2 Nf3 Qb6 Be7 f8Q Ne1 Qa5 Qdd2 Nd6 Bb5 Qa6 Qdf4 Nc8 Bd6 Ne7 Bc7 Qff7 Rg1 Qgf6+ Ke4 Ng6 Qd6 Nh8 Rg2 Qgf8 Rg1 g8B Rg2 Q6g6+ Ke5 Bh7 Rg1 Nc1 Kd4 Q7g8 Rg2 Rf3 Rgg4 Rg3 Ncd3 Qf3 Kc5 Qff6 Kb4 Ne2 Nc5 Rb8 Rd4 Bg2 Rdf4 Rb7 c2+ Kc1 Rhg4 Rb1 Rh4 Ba1 Rfg4+ Kb2 c1R Rb6 Rc3 Rc6 Re3 Kc1 Qdf4 Rb2 Qd6 Kb1 Rc3 Rd2 Qe6 Rd7 b2 Rf7 Qd6 Rg7 Bb8 Rb7 Bc7 Qxb5+
3B1Q2/2N1Q2n/K3B3/N1Rrb1k1/2n1Bqq1/Q4pPR/1Q1P1bR1/n1n1R3 b - - 0 1 illegal: No possible last move, all moves rejected
3k4/1r1B1rB1/nrq1QPRB/2b1Q3/p1r2QBP/1n2q3/2R1N2R/2NK3Q b - - 0 1 legal: proof: b4 a5 g4 b5 a4 f5 axb5 h5 gxh5 d5 e4 d4 exf5 d3 b6 Nd7 b5 Ba6 bxa6 Qc8 cxd3 Qd8 d4 Nb8 d5 Rh6 Bh3 Rh7 Bf1 Rh8 f4 c5 d4 e5 h4 g5 b7 a4 h6 c4 a7 e4 f6 g4 f7+ Kd7 d6 g3 h7 g2 d5 e3 f5 c3 Bb5+ Nc6 b8Q e2 Ra2 c2 Rh2 Qa5+ Nc3 Nf6 Bh6 c1R Rc2 Be7 f8B Nh5 Bfg7 Qd8 Na2 Re8 h8Q Qb6 f6 Qa6 Qg8 Nf4 Kd2 e1R Ne2 Rb1 Nac1 Rc8 Qe6+ Kd8 d7 g1Q Qbe5 Rab8 a8B Na5 Bb7 Rc4 Bc8 Qd6 Bc6 R8b7 Bb5 Kc7 d8R Nd3 Rg8 Nc5 Bbd7 Na6 Qf4 R1b6 Qee5 Rf1 Bg4 Bf8 Bcd7 Kd8 Qe6 Qdc5 d6 Qc6 Qe1 Ra7 Kd1 Qe3 Qee5 Rf3 Qh1 Nb3 Qf1 Rb5 Bde6 Ke8 Ke1 Qee4 Qh1 Nd2 Kd1 Rfb3 Bh8 Rf7 Rg6 Qe3 B8g7 Rbb7 Bef5+ Be7 Bc8 R3b6 d7+ Kd8 Qe6 Nb3 Qee5 Bd6 Qe6 Kc7 d8Q+ Kb8 Qf8 Kc7 Bd7 Qh3 Qfe4 Bc5 Qfd6+ Kd8 Qde5 Qe3 Q4f4
5n2/4rn2/1RBb1p2/2QPRNbk/1n2QP2/2BR2q1/1Nn1R2N/3K1NqQ b - - 0 1 legal: proof: e4 d5 exd5 b5 g4 c5 b4 f6 bxc5 b4 g5 a6 g6 b3 axb3 Nc6 b4 Nb8 b5 Bd7 Bd3 Bh3 Bf1 Bc8 b6 a5 h3 Bg4 Ra4 e6 Ba6 Ra7 Bf1 Rf7 gxf7+ Kd7 Ra1 g5 Ne2 Bh5 Ng1 g4 Ra3 g3 Ra1 Bg4 hxg4 Bh6 Bb2 Bg7 Bc1 Bf8 f4 Ke7 c4 h5 d4 a4 b7 a3 c6 h4 c5 g2 g5 a2 g6 h3 g7 e5 c7 h2 c8Q e4 c6 e3 c7 e2 Bb2 Qd7 d6+ Ke6 Bc3 Kf5 Nf3 Kg6 Qe8 g1Q c8N Qc6 d7 Kh6 d8R Qg4 Nd6 Qh3 Nc4 Qb5 Nb2 Qg2 Qe4 Qb3 Nbd2 Nd7 b8R Qg1 Rb6 Bd6 f8Q Rh7 d5 Qa3 Re8 Kh5 Re6 Nh6 g8N Qb3 Ne7 Nf7 Nf5 Qa3 Rc1 a1N Re5 Qb3 Qc8 Nf8 Rc2 Rg7 Qc5 Rh7 Nb1 Qa3 Kd2 e1B+ Kc1 Rg7 Bb5 Bh4 Nbd2 Bg5 Nf1 Qb3 Re2 Nc2 Bc6 Rh7 Bd2 Qbe3 Qe1 Qg3 Rg1 h1N N3h2 Nf2 Qh1 Qd4 Bc3 Nd3+ Kd1 Rg7 Rgg2 Qg1 Rgf2 Ndb4 Rf3 Nh8 Rd3 Re7 Rg2 Nf7 Qe4 Kg6 Rgd2 Kh5 Re2
1q3RBQ/8/RPNkrQ1N/Q2pN2Q/bB1PB1B1/Kb5q/2b1n3/6bn b - - 0 1 legal: proof: b4 a5 h4 b5 a4 e5 axb5 c5 bxc5 g5 hxg5 e4 c4 e3 b6 Ra7 fxe3 Rc7 e4 Rc6 e5 Rd6 Ra3 Rd3 Ra2 Rb3 Ra1 Rb5 cxb5 Qe7 Qb3 Qf6 Qd1 Qd8 d4 Ke7 Kd2 d5 Kc3 h5 Kb2 f5 e4 f4 g4 f3 g6 a4 b7 h4 g5 h3 g7 h2 b6 f2 c6 Nd7 b8Q Ngf6 g8B Bb7 e6 Rh4 g6 Rg4 c7 Rf4 c8B Rf3 g7 Nc5 e5 Nfd7 Na3 Re3 Bd2 Ne4 Qh5 Bc6 Bb4+ Ndc5 Nb5 Ng3 Qa8 Ne2 Bg2 f1B Nf3 a3+ Ka2 Qe8 Na7 Ba4 Rg1 h1B Qh6 Qd8 Qf6+ Ke8 e7 Nd3 Bch3 Qb8 Nc6 Nf2 Bg4 Re4 Qa5 Bb3+ Kb1 a2+ Kb2 Ba4 Ka3 Bb3 B8e6 Ba4 g8N Bh6 Qa7 Bb3 Qa5 Be3 Nh6 Ba4 Bg8 Bb3 B2h3 Bhg2 Bf5 Nh1 Bhg4 Bh3 Rg2 Bg1 Rf2 Re3 Be4 Bfg2 Bh5+ Kd7 Rff1 Bf5 Bg4 Bh3 e6+ Kc8 Bb1 Bfc2 e8Q+ Kb7 e7 Re6 Qh5 Kc8 Be1 Kd7 Nfe5+ Kd6 Rf4 Bf1 e8Q Ba4 Rf2 Bcb3 Be4 Bh3 Bgf3 Bf5 Bg4 Bh7 Qh8 Bg6 Rf8 Bf5 Qef7 Bh7 Rd1 Bg6 Rd2 a1Q+ Ra2 Qc3 Qff6 Qh3 Bb1 Nc3 Kb2 Nb5 Qd2 Nc3 Ra1 Bb5 Ra6 Bgd3 Ka3 Ne2 Qa5 B5a4 Bd2 Bdc4 Be4 Bd3 Be1 Bdc2 Bb4#
B1RNb3/1B2q1P1/n1p1n1Q1/1k2P1nn/2r1Nq2/B2Qr2B/5R2/KR1NN3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Be3 Ra2 Bb6 Ra1 Ba5 bxa5 Kd7 Ra2 Ke7 Ra1 Ke8 e4 Kd7 d4 h5 Kd2 f5 Kc2 h4 Kb2 f4 g4 f3 e6+ Kd6 e7 h3 e8B f2 e5+ Ke7 b6 h2 a6 Qd7 b7 Kd8 g6 Nc6 b8Q Rh4 d6 Qe7 g5 Qh7 d5 Rh3 a7 Na5 g7 Re3 d7 Nc6 g6 Nf6 g8N Nb4 Qb6 Qe7 g7 Nh7 Nc3 Ng5 Qg6 Na6 Ra2 a3+ Ka1 c6 Qdd3 Kc7 d8R Kb6 d6 Bh3 Rc8 Bd7 Bh3 f1Q Rf2 a2 Nf3 Kc5 Rg1 h1N Ne1 Ng3 Nf6 Nh5 Nd1 Rb8 a8B Rb4 Bb2 Rc4 Ne4+ Kb5 Bf7 Be8 d7 Rg3 d8N Re3 Rf4 Qf3 Ba3 Qg3 Rf2 Qf4 Kb2 a1N Bfe6 Nc2 Ka2 Nd4 Ka1 Kb6 Rgf1 Rc2 Bc4 Nde6 Bb5 Rc4 Rh1 Nb8 Ba6 Ka5 B6b7 Na6 Rhf1 Kb5 Rb2+ Ka5 Rff2 Ka4 Rb1 Ka5 Rc1 Kb5 Rb1+
2q1kr2/2P3r1/4QRbQ/1BK2nqp/2RNQQ1P/NN2B1N1/2Bb3b/3b4 b - - 0 1 illegal: No possible last move
3b4/1Pn1qBNB/7Q/3r4/pNrb2Rr/QB1KQ1NQ/2R1P3/r4kBq b - - 0 1 illegal: No possible last move
2r2rRN/N1b1R2P/1B1B1Q1n/2n4b/PbK5/k4Q2/1rR2p2/1QQB2bB b - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 a5 cxd5 a4 b3 Ra7 bxa4 Ra8 g4 h5 gxh5 b5 a3 b4 Bh3 b3 Bg2 Qd6 Bf1 Qb4 axb4 Be6 Bh3 Bf5 Bf1 Bc8 h4 Ke7 e4 g5 Ke2 f5 Kd3 c5 e6 Kd6 h6 g4 e5+ Kc7 b5 Kb6 d6 Ka5 h5 Kb4 h7 b2 h6 g3 b6 g2 e7 f4 e8Q f3 d7 f2 d8R Ra5 e6 Bd7 e7 Ra6 b7 Bc8 Qf7 Rc6 e8B Nd7 b8Q+ Rb6 Ra2 Bg7 Nh3 g1B Bg2 Bd4 Nc3 b1R Qff3 Be3 Nf4 Rb3 Rc2 Bb7 Bh5 Bh2 Re1 Ba8 Bh1 Ne7 Rg8 Rb2 Nb5 Rg6 Na7+ Ka3 Kc4 Bg1 d4 Rf6 d5 Nf5 d6 Rf8 Ng6 Bc6 Bd2 Bb7 Bc3 Bd2 Re7 Bc8 Bd4+ Bc3 Be3 Bb4 Qc1 Bb7 Bg4 Be4 Bf4+ Bd3+ Kd5 c4 Qb5 Nc5 d7 c3 d8B Be2 Bd6 Bd1 Bb6 Be2 Bh5 Bd1 Kc4 Rc8 Rd8 Rf8 h8Q Be2+ Qd3 Bd1 h7 Nh6 Qf6 Be2 Nh8 Bf3 Rd2 Bd1 Qdb1 c2 Qc6 Bg4 Qe1 c1B Rc2 Bf4 Qec1 Be6+ Qd5 Bf7 Bd1 Bh5 Qb7 Rf7 Rg8 Rff8 Bb8 Bc7 Qa8 Bd8 Bd6 Bc7 Qaf3+
n2b1Bb1/N1n1p1P1/3BB3/3Rn1K1/1P1kb2R/1QR5/2Bn1N1r/1rQ2R1Q b - - 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 g5 axb5 Bg7 c4 Bh6 cxd5 Bf8 fxg5 Nh6 g4 Nc6 h4 Rg8 h5 Rb8 g6 Rh8 g5 Qd6 g7 Ra8 Bg2 Qg6 hxg6 Ng8 Bf1 Nb8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 d4+ Kb4 b6 c5 d6 h5 d5 a5 f6 a4 f7 a3 b7 c4 d7 Kc5 d8Q h4 d6 c3 d7 h3 Bd3 c2 b4+ Kd4 Nc3 a2 Qc7 h2 d8R+ Bd7 Nh3 Nf6 g8Q Bh6 f8B Ne8 g7 Na6 b8R Rh7 Rdc8 Be6 Nf2 Bf7 Qh8 Bg8 Rb5 Ra7 Bb2 c1N Bc2+ Nd3+ Kf5 Ra8 g6 Bf4 Qc1 Be3 Qg3 Nec7 Qf3 Ne5 Rd5+ Kc4 Qg3 Bb6 Nb5 Ba5 Rf1 h1B Na7 Rh2 Kg5 Be4 Bd4 Bb6 Bc5 Ba5 Rb1 a1N Bd6 Nb3 Qhh3 Nd2 Qg1 Nd7 Qh1 Ne5 Qha3 Bb6 Rb3 Ba5 Rh3 Bb6 Rh4 Ba5 Rc5+ Kd4 Qb3 Bb6 Rd8 Rc8 Rd7 Na8 Rc3 Rc5 Rd8 N6c7 Rd7 Ra5 Rd8 Ra1 Rd7 Bc4 g8B Rb1 g7 Ba5 Be6 Bd5 Bf5 Bg8 Bg4 Ne8 Be6 Bd8 Rb7 Nec7 Rb5 Rb2 Ra5 Rb1 Rd5+
k1B3n1/2pq3N/2Q2n1P/N1RqQn2/7B/KQ3qNR/3R2rP/1Q1rr2R b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 d5 cxd5 b4 d4 b3 d6 Nd7 e3 Rh7 axb3 Rh6 b4 Nb8 b5 Rh8 d5 e6 Ra5 Be7 Ra6 Bf6 Ra1 Bd4 exd4 Bb7 Bd2 Ba6 Bc1 Bc8 f3 e5 Ra2 e4 Ra6 e3 Ra3 Bf5 Ra1 Be4 fxe4 Qf6 Qc2 Qe7 Qd1 Qd8 b4 Kd7 h6 Kc8 d7+ Kb7 b6 g5 d6 f5 e5 a5 e6 f4 e7 g4 e8N f3 d5 g3 b5 g2 Na3 a4 Ne2 g1R Qd4 f2+ Kd1 Rg5 Kc2 Rg3 Kb2 Qe7 d8R Qe5 d7 Qf4 d6 Qf6 Bh3 f1Q Nc4 Ra6 Ra3 Q1f4 Qe5 Qe7 Nf6 Qe6 Nh7 Ne7 Bd2 Rf8 Be1 Rg2 Bh4 Ka8 Rb3 Ng8 b7+ Ka7 Ka2 a3 Bf5 Rc6 Na5 Rc1 Bh3 Rd1 b6+ Ka6 Bg4 Qe4 Bh3 Rff1 Bf5 Qe7 Rb5 Qe8 Rc5 Qd4 Kb3 a2 Ka3 a1N Bh3 Qf7 Rf8 Qg4 d8Q Nb3 d7 Nd4 Qde8 Qe4 d8R Nd7 b8Q Qc6 Ng3 e2 b7 e1Q Nh5 Qef2 Be6 Qg7 Rf3 Nf5 Rh3 Rfe1 Ng3 Ndf6 Rd2 Qd5 Bc8 Qe2 Qa4 Qgd7 Qa8+ Kb6 Qae4 Qdb5 Qb1 Qef3+ Nb3 Qbc6 Qa4 Qdd7 b8Q+ Qb7 Qba8 Qbc6 Qc4 Qcd5 Qc6+ Ka7 Qcc3 Kb8 Na5+ Ka7 Qa4 Ka8 Qcb3 Ka7 Qb5 Ka8 Qc6+
1B2B3/BQr4b/2n1qN1b/2P1RNQ1/1qQp4/qNRK1B2/Q2P4/1k2q2q b - - 0 1 illegal: No possible last move
K4NBn/4q1k1/P3p3/1rPNq1R1/QQ2q2B/nqbN2RN/4B2B/3R2q1 b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Qc7 f7+ Kd8 f5 Qb6 bxa3 Kc7 a4 Kc6 a5 Qd8 g5 b5 h3 Ra6 Qh5 Kc7 Qd1 Rf6 gxf6 Kc6 Bf4 g5 Qd3 g4 Qe2 g3 Bc1 Bb7 Qh5 Kc7 Qe2 Bf3 Qd1 Bg4 hxg4 Kc6 Kd2 Kd5 Kc3+ Ke5 Kb4 h5 a4 d5 c4 d4 g5 d3 a6 d2 a5 g2 a7 e6 a8N h4 g6 h3 g7 h2 a6 Rh6 Be2 Qd5 Ka5 b4 Kb6 b3 Ka7 b2 c6 Bc5+ Nb6 Rh8 f8N Rh3 f7 Kf6 c7 Qd8 c8R Qd6 Ng6 Nc6+ Ka8 Rh8 f8Q+ Kg5 f6 Kh6 f7 Na7 Na4 Nb5 Ra3 Kh7 Nbc3 b1Q Nb2 Bb4 Rc5 Qe4+ Nd5 Ne7 Nd3 Qde5 Qa4 d1Q Bf4 Qb3 Nh3 Bc3 Rd1 h1Q Bh2 g1Q Qb8 Qh4 g8B+ Kg7 Qb6 Qhf6 Qba5 Qhe4 Q5b4 Kh6 f8B+ Qg7 Ngf4 Ng6 Be7 Rh7 Bh4 Nh8 Ng6 Qe7 Rc7 Rf7 c5 Kg7 Rc8 Rf2 Rf8 Rf3 Rf5 Rf1 Rg5 Re1 Rd2 Rb1 Rd1 Rb2 Raa1 Na3 Rab1 Qgg3 Rg1 Qe1 R1g3 Qg1 Rd1 Qbc4 Qba5 Rb5 Q5b4 Qb3 Nf8+
2q2Br1/1RR1QN2/K1BNn2r/B2PP2q/p2Q2r1/2Q3kq/1N2rb1N/7B b - - 0 1 legal: proof: c4 b5 f4 g5 a4 f5 axb5 e5 fxe5 d5 cxd5 f4 g4 Bf5 gxf5 Nd7 h3 Ndf6 h4 g4 Bg2 Ne4 Bf1 Ng5 hxg5 Bb4 Rh3 Bd6 Rh1 Bf8 b4 Kf7 d4 a5 Kd2 h5 Kc3 c5 Kc4 g3 e4 g2 f6 Kg6 d6 f3 b6 h4 Kb5 Kh5 e6 Kg4 f7 c4 e7 a4 e8N c3 d7 c2 g6 h3 g7 h2 e5 Rh7 b7 Ne7 g8B Nc6 b8Q Na5 Qd6 Rh3 Nd2 Bg7 f8B Ra6 Nc4 Rg3 Qe7 Re6 Nb2 Qc7 d8N Rh6 Nd6 Qc5+ Ka6 Nb3 b5 Rgh3 b6 Bf6 b7 R3h4 b8Q Kg3 Rb1 f2 Qc8 Rg4 Bd2 c1R Ba5 Rc2 N8f7 Re2 Nf3 g1R Bg2 f1Q d5 Qc1 Qc3 Bh4 Qdd4 Qc2 Bh7 Rg8 Bd3 Nc5+ Kb5 Ne6 Ka6 Rg4 Bb5 Qf5 Bd7 Qh5 Bc6 Qc1 Nbc4 Qc2 Rb7 Qcf5 Nb2 Rg8 Bh3 Rgg2 Rc1 h1Q Rc2 Rg1 Bg2 Qhh3 Rc1 Qc2 Bh1 Rgg2 Qcb4 Qc5 Nh2 Qc3 Bb5 Qc8 Bc6 Bg5 Be8 Be3 Nf5+ Kf2 N5d6 R2g4 Rc7 Kg3 Bc6 Bf2 Qbc3+
3n1QBr/1br5/PQ3R2/1N5q/1qNBp3/N1qBQNk1/rR3P2/1K3B1q b - - 0 1 illegal: Other
7q/b1p5/1q3k2/bR1Q1BRN/Q1N2b2/4BqrN/N1P1B1PK/1QQq2n1 b - - 0 1 legal: proof: a4 a5 h4 b5 axb5 g5 f4 Ra6 fxg5 Rd6 g6 Rd5 Nh3 Re5 Ng1 Rg5 hxg5 e5 d3 e4 Ra4 e3 Ra2 Bb7 Ra1 Be4 dxe4 Bg7 Qd2 Bh6 Qd1 Bf8 Qd6 Na6 Nf3 Nc5 Qd3 d5 Ng1 d4 Qc4 d3 Qd4 Be7 Qd7+ Kf8 Qg4 d2+ Kd1 Nd3 exd3 Ke8 Qe2 Qb8 Qe1 Qa8 Ke2 Bf8 Qd1 Qd8 Kf3 Ke7 Kg3 h5 b4 f5 d4 a4 d5 a3 e5 e2 d6+ Ke6 d7 a2 b6 Bc5 b5 Bf8 b7 Bh6 b8N Rh7 b6 Rh8 g7 Qf6 d8N+ Ke7 g6 Qd6 b7 Qd7 e6 Qe8 Na6 Nf6 g8Q Nd5 b8Q Nf4 g7 Nh3 Na3 Qc6 Qb1 Kf6 e7 Qb6 Qd5 Rg8 e8Q Bg5 Nb4 e1B+ Kf3 f4 Ne6 h4 Nc4 Bh6 Be2 Bg5 Kg4 f3 Qed7 f2 Q7b5 Ra8 g8B f1Q Bh7 Ra3 Bf5 Bf4 Ng7 Rb3 Ba3 Re3 Qdc1 d1Q Qa5 Ng5 Rh3 Nf3 Rg3 h3 Qab5 h2 Kh3 Bd2 Rg5 Rb3 Qa4 Rd3 Qbb2+ Bc3 Rb1 h1Q+ Kg4 Qh7 Nh3 Ng1 Qa1 Qh6 Rb3 Qh8 Qab1 a1B Na2 Qbb8 Bc5 Ba5 Bf2 Bd4 Rb5 Ba7 Bc5 Qb6 Bf2 Be3 Kg3 Rc3 Kh2 Bf4+ Kh1 Rf3 Be3 Rg3 Kh2 Qf3 Nh5+
7R/1qp1BP2/1rqQr2N/7n/k1q1NbP1/NrN5/K2BQ1BR/2Q2Qq1 b - - 0 1 legal: proof: e4 d5 c4 b5 cxd5 f5 exf5 b4 g4 b3 f6 Nc6 f7+ Kd7 axb3 Nf6 b4 Nb8 b5 Ng8 f4 g5 f5 Kd6 f6 Bf5 h3 Nc6 Nf3 Kd7 Ng1 Ne5 gxf5 g4 Ne2 g3 Ng1 Ng4 hxg4 Rc8 Ra4 Rb8 Ra1 Ra8 b4 e5 d4 h5 Kd2 a5 Kc3 e4 Kb3 g2 Ne2 Bc5 f8Q g1Q d6 e3 b6 Kc6 b7 Kb5 b8N h4 d5 h3 d7 h2 d6 Qg2 Bd2 Qc8 d8Q Ra7 d7 Qgb7 Na6 Bb6 Nc5 Qbb8 Nec3+ Kc6 Qfe8 Rh6 b5+ Kd6 Bh3 e2 Ka3 e1Q Qee2 Ra6 Kb2 Ba7 b6 Kc6 b7 a4 Qf8 Qa8 b8Q a3+ Kb3 a2 Na3 Qd8 Qb4 Qb7 Rb1 a1R Kb2 Qe7 d8N+ Kd6 Nf7+ Kc6 Rc1 Rb1+ Ka2 Rb3 Qc2 Qe5 Rd1 Rg6 Qc1 Qd5 Qf4 Qg3 Q8h6 Qgf3 Bg2 Qc4 Rdg1 Qfd5 N5e4 Be3 Qff1 Kb6 Qf8 Ka5 Qe7 Rab6 Qd6 Qdc6 Nh6 Ne7 Ng8 Bf2 f7 Re6 f8B Be3 f6 Nd5 f7 Nf6 Be7 Bf4 Bf3 R6b4 Rg2 Rb6 Rhg1 h1Q Rf2 Qh3 Rh1 Qg2 Rh8 Nh5 Nh6 Qh1 Rh2 Qg1 Nc5 Kb4 Bh1 Ka5 Bg2 Kb4 N5e4+ Ka5 Ncb5+ Ka4 Nbc3+
2K2Q2/b2n2nB/4b1Rp/3RBB2/nn1Q1P2/n1R1B2k/R1P4b/qNN3Q1 b - - 0 1 legal: proof: g4 b5 d4 f5 gxf5 g5 f4 a5 h4 c5 dxc5 g4 a4 h6 axb5 Ra7 e4 Ra6 e5 Rf6 exf6 Rh7 Ra3 Rg7 Ra1 Rg5 hxg5 Qc7 Qd2 Qb6 Qd1 Qd8 Kf2 Kf7 Kg3 e5 b4 d5 b6 d4 b7 e4 c6 a4 c7 e3 b5 e2 b6 e1N Rh5 d3 Ra2 a3 Bh3 d2 Ne2 Nd3 Qg1 d1N Be3 N1b2 Nc1 Bd7 c8R Nb4 Rc3 Be6 Kh4 g3 Kg4 Nd7 b8R g2 b7 Bc5 g6+ Kf8 g7+ Kf7 Rg5 Ne7 Rg6 Qh8 Rd8 Na4 b8B Bd4 Be5 Ba7 Qd1 g1B Qd4 Nf8 Rd6 Nd7 Rd5 Bh2 g8B+ Kf8 Bh7 Kf7 Kf3 Qg7 Ke4 Qh8 Rb2 a2 Bg4 a1N Ra2 Nb3 Bh3 Kf8 f7 Na5 Bg4 Nc4 Bh3 Nc8 Bg4 Ke7 f6+ Kd8 Bf5 Ne7 Rd6 Qg7 f8Q+ Kc7 f7 Qh8 Rb3 Na3 Qg8 Qg7 f8Q Qf6 Bg4 Nf5 Rd5+ Kc6 Rd3 Ng7 Bf5 Qh4 Qd8 Qe1 Qgf8 Qc3 Qg5 Qa1 Qg1 Kb7 Qd6 Kc8 Rc3+ Kd8 Qb8+ Ke7 Bc7 Nf8 Ke5 Kf7 Kd6 Nd7 Qh8 Nac5 Bb8 Na4 Kc7 Ke7 Qdd1 Kf7 Kc8 Ke7 Rg3 Kf6 Be5+ Kf7 Qd4 Ke7 Bg4 Kf7 Bg8+ Kg6 Bf5+ Kh5 Bgh7 Kh4 Rg4+ Kh3 Qg8 Nac5 Qf8 Na4 Rg6+
1r5r/3n1kq1/2Q1n1nQ/1P3P2/1Q3qN1/1Q2RBp1/NRBNK3/nN4Br b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 f5 Na6 g3 Be6 axb3 Bd7 b4 Nb8 b5 Bc8 Ke2 g5 Kf2 g4 Ke1 Bh6 Nh3 Bf4 Ng1 Be6 gxf4 g3 h3 Bf7 Ra2 Bh5 Ra1 Bg4 hxg4 Qd7 Ra6 Qc8 Ra1 Qd8 b6 a5 Ra3 h5 b4 c5 d4 e5 b5 e4 d6 a4 f7+ Kf8 d7 c4 g5 e3 d5 c3 d6 h4 b7 c2 Bd3 h3 Nf3 e2 Rh2 Qf6 d8N Qe5 d7 Qe4 Be3 c1N Bg1 Kg7 f6+ Kg6 f8Q Rh7 f7 Rh5 f5+ Kh7 g6+ Kh8 g7+ Kh7 Nc6 Qf4 d8Q Rh4 Qdd6 Rh6 Nce5 Ne7 Ng4 Nd7 b8N Nb3 Na6 Nbc5 Nb4 Rb8 g8B+ Kh8 Rb3 a3 Qc6 a2 Qc2 a1N Na2 Rh7 Qfh6 Ng6 Rg2 h2 f8Q h1R Rb2 Ne6 Qb4 Nc7 Bd5 Ne6 Qcb3 Kg8 Bc2 Kf7 Nfd2 Rhh8 Bf3 Qe3 Nc4 Qe4 Kd2 Qf4+ Kd3 e1Q Re2 Qf2 Ncd2 Qc5 Re1 Qce5 Re3 Qg7 Ke2
n1K3nk/8/1rBR3n/5Np1/bB4NQ/R3Q1nQ/rP4BP/1R1nBnQ1 b - - 0 1 legal: proof: c4 h5 d4 b5 e4 d5 cxd5 Kd7 g4 b4 gxh5 b3 d6 Ke6 d7 Qe8 axb3 Qd8 b4 Kd6 b5 Ba6 Qd2 Bb7 Qd1 Bc8 f4 e6 d5 Ke7 Kd2 Kf6 Ke1 Bd6 e5+ Ke7 Ra2 Qe8 Ra1 Kf8 exd6 e5 Nf3 e4 Ng1 Qe5 fxe5 Rh6 Qg4 Rh7 Qd1 Rh8 Kd2 c5 Kc3 f5 Kc4 a5 d8Q+ Kf7 d7 e3 h6 e2 h7 e1N b6 a4 Kb5 g6 d6 Kg7 e6 a3 e7 c4 e8B f4 b7 a2 Kb6 f3 Kc7 f2 Nc3 Ra6 Qg5 Ra3 d8Q Nd7 b8B Nb6 d7 Nc2 Nb5 c3 Qe3 Nd4 Bd2 c2 Bb4 c1N Bg2 f1N Nf3 Nf5 Ne5 Ne2 Ng4 Nfh6 Nd4 Neg3 Qh4 g5 d8R Bd7 Qdc1 Bc6 Rd6 Na8+ Kc8 Ba4 Bec6 Rb3 Rb1 a1N Be1 Nc2 Nf5+ Kf7 Ra1 Rb6 Ra3 Kf8 Qg1 Nce3 Bc7 Nd1 Qce3 Rb4 Ba5 Rb6 Ne7 Kg7 Bab4 Nf6+ Be8 Rf8 Nf5+ Kh8 Qh3 Rf7 Bec6 Nfg8 Qh4 Ra7 Ne7 Kg7 h8Q+ Kf8 Qh7 Raa6 Qf5+ Kg7 Qff3 Kh8 Nf5 Ne2 Qfh3 Neg3 Rad3 Bc2 Rc3 Ra2 Ra3 Ba4 Qgf2 Nd2 Rf1 Nc3 Qg1 Ra6 Bf2 Rb6 Rc1 Ndf1 Be1 Nd1 Rb1
4rNr1/R1nB2r1/1Q2bNB1/b3RPPK/6NQ/5p1Q/r7/B1NB1rrk b - - 0 1 legal: proof: c4 b5 h4 f5 e4 e5 a4 d5 cxd5 g5 hxg5 Nd7 axb5 Nc5 Nc3 Qd7 Nb1 f4 f3 Qf5 exf5 e4 Bc4 e3 Bf1 Ne4 fxe4 Bb4 Qf3 Ba3 Qd1 Bf8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 b4 c5 d4+ Kd6 e5+ Kd7 g6 a5 e6+ Kd6 g7 c4 b6 a4 b7 h6 b8Q+ Ke7 d6+ Kf6 d7 c3 d8Q+ Ne7 g8B c2 d5 a3 d6 Ke5 d7+ Ke4 b5 e2 b6 e1R b7 f3 Bb5 a2 Nd2+ Ke3 Kh5 Kf2 g4 Kg2 Ne2 Ra3 Nf1 Nd5 e7 Bg7 e8B Rb3 Nh2 Rb1 Qh4 Bf8 d8N Bc5 g5 Bb6 Ne6 Ba5 Bbd7 Nc7 Bb2 c1R Nf8 Rc3 Bc4 Rg8 Nc1 Re5 Bg6 Re8 Ba6 Rce3 Qa7 R3e7 b8N Reg7 Be5 Rb2 Re1 Rd2 Bf1+ Kh1 Qb6 Rg2 Be2+ Rg1 Qda4 Rf1 Qag4 Rg1 Bc6 Be6 Bd1 Rf1 Qgh3 Rg1 Rb1 a1R Nbd7 Ra2 Nf6 Rf1 Bd7 Rg1 Ba1 Rf1 Kg4 h5+ Kf4 Rg1 Re5 Rf1 Rb4 Rg1 Ra4 Rf1 Qhf2 h4 Kg4 Rg1+ Kh5 Rf1 Qg4 h3 Qfh4 Rg1 Nf1 h2 Qgh3 Bb4 Ra6 Ba5 Ra7 Rge7 Re4 Reg7 Ne3 Rf1 Re5 Kg1 Qe1 h1R Qeh4 Rhh2 Neg4+ Rhf2 Qa6 Rg2 Nh2 Kh1 Qb6 Rgg1 Nhg4+
2N2q1Q/B1bR3B/r1B1n1rb/3p4/k3NQR1/3NrnPB/5PKp/6QQ b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 c5 exf5 g5 fxg6 c4 h3 c3 dxc3 Ba6 c4 Bb7 c5 Be4 Ra6 Bf3 Ra1 Bg4 hxg4 Qa5+ Qd2 Qc7 Qd1 Qd8 b4 d5 c4 Kd7 b6 Kc6 g7 e5 g5 h5 b5+ Kb7 g6 a5 c6+ Kc8 c7 Kd7 c8B+ Kd6 c5+ Ke7 c6 Kd6 c7 Kc5 b7 Kb4 b6 a4 Ne2 e4 Rh4 a3 Bh3 a2 c8N Ra5 Rg4 h4 Nd2 Ra7 Nf4 e3 Ne4 e2 Be3 Na6 b8Q Rh6 b7 Ne7 g8B Nc5 g7 Nc6 Bh7 Rg6 g8Q Ra6 Nd3+ Ka3 g3 Nd4 Qh8 Nce6 Qf4 Bh6 b8Q Qf8 Rb1 a1B Rb7 Bb2 Rd7 Ba1 Qc1+ Ka4 Qf3 Bb2 Qbf4 Ba3 Qg2 Bd6 Qg1 Bc7 Qb1 Nb5 Ba7 Nbd4 Kd2 Nf3+ Ke3 e1R+ Be2 Rd1 Qh1 Rd2 Qbg1 Rb2 Bd1+ Rb3 Ke2 Qf6 Kf1 Qf8 Bg2 h3 Bc2 h2 Bh3 Ka5 Kg2 Rc3 Ba4 Rb3 Ne5 Re3 Bc6 Kb4 Nd3+ Ka3 Ba8 Ka4 Bc6+
QQr4Q/1Rn2RNr/N2b3p/B1N3nb/1NkB4/4qPQ1/rPp1B3/5K2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 e4 Qd7 a4 Qd6 axb5 Qd8 h4 f5 exf5 g5 hxg5 a6 bxa6 Bh6 Qe2 Bg7 Qd1 Bf8 d4 Kd7 g4 Kd6 f3 e5 a7 c5 g6 e4 f6 c4 g7 e3 f7 e2 g5 c3 g6 c2 Nc3 Be7 f8N Na6 Na2 Nc7 Nb4 Be6 Nh3 Qb8 Nf2 Bh3 Ne6 Nf6 g8Q Qb6 g7 Rf8 a8N Bd8 Ne4+ Ke7 d6+ Kd7 d5 Qd4 Be3 Ng4 Ra7 Qb6 Bd4 Rf6 Qa1 Qc5 Rb7 Be7 Qb8 Qb6 g8Q Rf7 Ng7 Ne5 Kf2 e1R Be2 Be6 Rh4 h6 Rf4 Rf8 Rf7 Rh7 Qh8 Rh1 Qg1 Rc8 Qg3 Ra1 Kg2 Ra2 Kf2 Ng6 Kf1 Nf8 Nc5+ Kd8 d7 Bd6 Qh2 Bg4 Qg1 Bh5 Qg3 Ne6 Nc7 Ng5 N7a6 Qa7 Rf4 Ke7 Qa8 Nfe6 Qb8 Bc7 d8B+ Kd6 Qa8 Bb8 Ba5 Bc7 Bg1 Ke5 d6 Bb8 d7 Bd6 d8Q Nc7 Bh2 Qb6 Rf7+ Kd4 Qde8 Qc6 Qd8 Qe8 Bg1+ Qe3 Bf2 Ne8 Qb6 Nc7 Qba7 Nh3 Q7b8 Ng5 Nbd3 Kc4 Bg1 Qd2 Bd4 Qe3 Ndb4+
4b1qr/n2kn1Nr/5Qp1/3NR1p1/1R1PrbKQ/N1P3Q1/1N4Q1/3B2BR b - - 0 1 illegal: Other
1RB3r1/3PPkB1/bnp2q1B/R3r1pr/5QB1/2N2Q2/3R1R2/Kn2NQ1b b - - 0 1 legal: proof: c4 b5 g4 d5 cxd5 f5 gxf5 e5 a4 e4 axb5 e3 h4 g6 h5 Ba6 h6 Bg7 hxg7 Ke7 fxe3 Ke8 e4 Bb7 e5 Bc8 e4 h5 b4 a5 d4 a4 Kd2 h4 Kc2 c6 Kb2 h3 e6 h2 e7 Ra5 e5 Nf6 g8Q+ Kd7 e8B+ Ke7 e6 Nh5 b6 Bb7 b5 Qd6 f6+ Kd8 e7+ Kc8 f7 Rh7 f8B Ng3 Nc3 Ne4 Be2 Rg7 Bg4+ Nd7 Qf7 Ra8 Nf3 Rg8 Bg7 Nf2 Qf1 Nh3 Bch6 g5 Ne1 Qg6 d6 Ra6 d5 Nf2 Qf3 Ra5 Bf7 Qf5 Be6 a3+ Ka2 Ba6 b7+ Kb8 Rg1 h1B Rg2 Nb6 d7 Kc7 b8R Ne4 d8R Qf6 Bc8 Nd2 Rf2 Nb1 Rd6 Ra4 Rd8 Re4 Rd6 Re5 Rd8 Nd7 b6+ Kd6 b7 Re4 Rf8 Nb6 Rd2 Ke5 d6 Re3 Kb3 a2 Kb2 Re4 d7 Re2 Bh5 Ke6 Rf7 Re5 Rf8 Qg6 Rf4 Qf6 Bg4+ Kf7 Rf5 Re4 Ra5 Re5 Rf2 Na3 Rd1 a1R Rdd2 Rd1 Ka2 Nb1 Ka1 Rc1 Ra8 Rc2 b8Q Rb2 Qd6 Rb3 Rb8 Rb4 Bf5 Rh4 Bg4 Rh3 Qb4 Rh5 Qbf4
2n3rR/1pKN4/Rn1P4/1B1bB1R1/2B1NBR1/1Q1bkNq1/2P3p1/1r1Q1b2 b - - 0 1 illegal: No possible last move
bR1r2r1/3Q1K2/8/RQ1pPn2/BQ1q3B/2N2N1N/1b1Rp1Pk/2n1qQN1 b - - 0 1 legal: proof: d4 b5 h4 f5 e4 g5 exf5 e5 hxg5 c5 dxc5 b4 f4 b3 axb3 e4 b4 Qe7 b5 Qe5 fxe5 Kd8 Kd2 Ke7 Ke1 Ke8 Ke2 Ke7 Ke3 d5 Kf4 a5 c4 h5 b4 e3 f6+ Ke6 c6 h4 c7 h3 b6 a4 b5 a3 c5 a2 f7 h2 b7 Bd7 c8N Na6 b8R Ne7 g6 Nc6 Kg5 Nab4 b6 Be8 g7 Ra4 Kg6 Rh4 g8N Ra8 b7 Rd4 Nge7 Bg7 Nc3 Ra7 Bb5 e2 Qf1 Ra4 Nd6 Rg4+ Bg5 Nd3 Nde4 Ra8 Ba4 Nd4 c6 Bf8 c7 Nf5 c8Q+ Bd7 Rd1 a1Q Rd2 Nc1 Qd8 Bh6 f8Q Bc6 Qfe8 Qb2 Qa5 Qb6 Qb4 Qd4 Qb5 Rf4 Bh4 Rg4+ Kh5 Bg5 Ng6+ Be7 Qd8 Ba3 Qb4 Bb2 Nf4+ Kf7 Qc8 Rg8 Nfh3 Rd8 Qc7+ Ke6 Kg6 Rg8+ Qg7 Rd8 Rc8 Rg8 b8Q Rd8 Q8b5 Rg8 Rc7 Rad8 Ra7 Bb7 Ra5 Ba8 Nf3 Rgf8 Rg1 h1Q Qc7 Rg8+ Qg7 Qh2 Rh1 Qf4 Nfg1 Qg3+ Bg5 Qh4 Rh2 Ng3 Nf3 Rc8 Nfg1 Rh8 Nhf2 Rce8 Qgb7 Rhf8 Kg7 Kf5 Q7c6 Rh8 Kf7 Rb8 Bd8 Kf4 Qd7 Nf5 Bf6 Qg3 Rh5 Rbe8 Bh4 Rc8 Rh6 Rhg8 Rb6 Rcd8 Nfh3+ Kg4 Neg5 Qe1 Ne6 Qg3 Rb8 Qe1 Be7 Kg3 Bh4+ Kh2 Neg5 Qb6 Nh7 Qbf2 N7g5 Qd4 N5f3+
B1R1n2K/6rB/1Nr5/N1pR1QPp/4QNbP/8/b1BnQB2/1Nkqq3 b - - 0 1 legal: proof: b4 a5 f4 g5 fxg5 e5 a4 b5 axb5 d5 c4 e4 cxd5 e3 dxe3 a4 e4 Bd6 e5 Bc5 Ba3 Bb6 Bc1 Ba5 bxa5 Bb7 Ra2 Ba6 Ra1 Bc8 Kf2 Ke7 Kf3 c5 Kf4 h5 g4 f5 h4 a3 e4 a2 e6 Kd6 e7 Ra6 e8Q Qb6 g6 Ra8 Kg5 f4 a6 f3 a7 f2 e5+ Kc7 g7 Nc6 Kg6 Nd8+ e6 Kd6 e7 Ke5+ d6 Ke4 g5 Ne6 d7 Qd8 b6 Nd4 b7 Nc6 b8N Nb4 Ne2 Nc2 Nf4 Ne1 Qd3+ Ke5 Be3 Nf3 Qf5+ Kd6 Bd3 f1B Bf2 Nf6 g8B Rh7 Bc2 Bc4 Rd1+ Bd5 Rd4 Nd2 Rd3 Qa5 d8N Rg7+ Kh6 Be6 Nd7 Rc8 a8B Rc6 Bh7 Qc3 Qeg6 Ne8 Nb6 Qe5 Rd4 Qe1 Qe4 Qd1 Qf7 Bg4 Qff5 Nc7 e8Q Qe1 Qef7 Ne8 Qb7 Qd1 Qa6 Qe1 Qae2 Qd1 Na3 Qe1 Rb1 a1Q Rb5 Qad1 Nb1 Rcc7 Nb7+ Kc6 Qee5 Ba2 Rd5 Rc8 Rb3 Rcc7 Rbd3 Kb5 Na5 Kb4 Rd8 Rc8 R3d5 Rc6+ Qee6 Rcc7 Rc8 Rc6 Nc3 Ka3 Nb1+ Kb2 Qfe4 Kc1 Qf5 Rb7 Kg6 Nc7 Kg7 Ne8+ Kh8 Rg7 Q6e4
5RNK/2R1nQ2/1p1bPNB1/1kb3n1/Rp3r2/Bq4R1/1QqPBB2/1Q3r2 b - - 0 1 illegal: Other
1r2n1N1/B1Q1B1R1/NpP1k3/rp1b2N1/nKn3r1/P2RR2B/8/2q1NBQ1 b - - 0 1 illegal: Other
2n1k1q1/1n3P1p/KRN3RQ/1B4p1/Rb2B3/1brPnQ1Q/1N6/2BQ2bB b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 d5 Ra2 f5 Ra1 e5 gxf5 g5 h4 d4 h5 d3 cxd3 e4 Nf3 e3 dxe3 Ra6 Ng1 Rg6 hxg6 Kd7 Bd2 Ke7 Bc1 Ke8 Kd2 c5 Kc3 c4 b4 a4 f4 a3 b6 a2 g7 Ne7 g8B Bd7 b5 Ng6 b7 Nh4 b6 Qc7 f6 Ba4 e4 Ba3 e5 Bd7 e4 Bc6 f7+ Kf8 f5 Bb2+ Kb4 c3 Ka5 c2 e6 Qd6 e5 Bf3 e7+ Kg7 e8Q Be2 e6 Ng2 e7 Bf6 Rh6 Nc6+ Ka6 Na7 b8Q Bh5 Ne2 Bf3 Qb7 Bc6 Na3 Nb5 Nc4 Qb4 Nb2 Bd5 Qed7 Bd4 e8B Kf8 Rg6 Bb3 Qf3 Ne3 b7 Na7 b8R Nc8 Bg2 Qc4+ Rb5 Bc3 Nd4 Bb4 Nc6 Qe6 Bh1 Qd5 Rb1 a1B Ra5 Qe6 Ra4 Qd5 Nc4 Bd4 Nb2 Bdc5 Bd2 c1N Qe6 Ne2 Bc1 Nc3 Qh3 Qd8 Qd5 Bb6 Q5f3 Nb5 Rd6 Bc2 Nc4 Nf1 Nb8 Ne7 Rb3 B4c5 Rf6 Nd6 Nb2 Nb7 Rd6 Ba5 Rbb6 Bb3 Bb5 Bg1 Rdc6 Bb4 Rd6 Nc8 Rh6 Qe8 Rhc6 Ke7 f8Q+ Kd8 Re6 Ne3 Rg6 Na7 Bd5 Rg8 f6 Rg7 Qfg2 Rc7 Qfh6 Nc8 Be4 Rc3 Qgf3 Qg8 Nc6+ Ke8 f7+
4B1N1/Nb2p3/NnRN2RB/1P1k1q2/2pB2Q1/r2r1B1b/bPQ4r/4K2Q b - - 0 1 legal: proof: d4 g5 c4 d5 cxd5 b5 a4 g4 axb5 g3 e4 Qd6 f4 Bh3 f5 Bg7 e5 Qd7 f6 Na6 fxg7 Bg4 hxg3 Bf5 g4 Nc5 g3 Rd8 g5 Ra8 g6 Ne4 g4 Nd6 exd6 Qd8 g5 Bc8 Kf2 Kd7 Nf3 f5 Nbd2 h5 Ra6 c5 Nb3 f4 Qc2 h4 Bg2 h3 Rg1 h2 Nfd2 h1B Ke1 Nf6 g8Q f3 g7 Nh7 g6 Nf6 Qh7 Bb7 g8B Bc8 g7 Qb6 Bf7 Qb7 g8N Qb8 Be8+ Kd8 d7 Kc7 d8N Be6 Nc6 Nd7 Qh6 Qc8 d6+ Kb7 d5 f2+ Kd1 f1B Ke1 Rh7 Be4 Bf3 Qh1 Rh2 Rg3 Bfh3 Rg6 Ne5 d7 Kc7 d8B+ Kd6 Ba5 Nd7 Bc3 Rb8 Rb6 a5 Bf6 a4 Na7+ Qc6 Bg7 a3 Bh6 Ke5 d6 a2 Bd5 a1R Ra6 Nf6 d7 Qc8 d8Q Ra3 Qd7 Rb6 Be4 Rd6 Rb6 Bd5 Qg4 Qf5 Ra6 Bb7 Rc6 Nd5 Be3 Be2 Bf3 Nb6 Ne4 Bc4 Bg1 Rd5 Bh6 Rd3 Bd4+ Kd5 Na5 Ba2 Nb3 c4 Nbc5 Qf6 Na6 Qf5 Nd6+
rn4bB/2pN1nR1/3B1nBb/1Q1P1Rq1/2P2kp1/1K2R3/3QR2b/2Q2BN1 b - - 0 1 legal: proof: e4 b5 f4 d5 exd5 f5 h4 a5 g4 g5 gxf5 e5 fxe5 g4 a4 Ra6 axb5 Rb6 Ra2 Rg6 Ra1 Rg5 hxg5 Bh6 Rh5 Bg7 Rh1 Bf8 b4 Kf7 c4 h5 d4 h4 Kd2 h3 Kc3 h2 d6 a4 d7 a3 f6 Ke6 b6 Kf5 b7 a2 g6 Bh6 b5 Qe7 d8Q Ke4 b6 Kf5 g7 Nd7 b8R Bd2+ Kb3 Qe8 f7 Rh7 f8B Ndf6 b7 Nh5 e6 Kf4 e7 Nhf6 Bb2 Be3 Nc3 Qf7 e8B Qe6 Ne4 Nd7 Bg6 Rh4 Qc1 Nh6 g8R Qd5 Rg7 Qg5 Nf6 Nf7 d5 Rh8 Bd6+ Nfe5 Ra8 Nb8 Ra3 Be6 Nd7 Bg8 Rb1 a1B Qe7 Nc6 b8Q Bd2 Qb5 Nb8 Bd4 Bc3 Rb2 Bb4 B6c5 Nf7 Qee1 Be3 Be7 Bd6 Re2 Be5 Qed2 Bd6 Nf3 Be5 Rg1 h1N Bd6 Ng3 Rgg2 Nh5 Ng1 Nf6 Rgf2+ Kg3 Rf5 B5f4 Nf3 Bg1 Rfe5 Bh2 Ng1 Be3 Bb2 Kf4 Rf2+ Kg3 Ra5 Qf5 Kc3 Bh6 Ra3 Nh7 Rfe2 Nc6 Rb3 Qg5 Re6+ Nfe5 Re8 Be6 Rf7 Rf8 Ree7 Ra8 Rf5 Bg8 Kc2+ Kh4 Rbe3 Nb8 Ba1 Ra5 Kb3 Ra8 Rg7 Nf7 Bd4 Nf6 Rh7 Nh5 Bh8 Nf6 Rg7 Nc6 Re4 Nb8 Rfe5 Kg3 R4e3+ Kf4 Rf5#
4b3/2Q1nQ1k/1r4qN/qR1N1bB1/R1B2B1Q/1NP1BnK1/1P2pp2/2nQ4 b - - 0 1 legal: proof: d4 b5 f4 d5 a4 c5 axb5 h5 g4 e5 gxh5 a5 e3 Bd6 dxc5 d4 e4 Ra7 Qd3 Rd7 Qf3 Bc7 Qd1 Rd5 exd5 e4 Nc3 Nf6 Nb1 Be5 fxe5 Ng8 Kf2 Kf8 h4 f5 h6 g5 d6 f4 h7 Kg7 h5 a4 h6+ Kg6 b6 f3 b7 a3 c3 g4 e6 a2 e7 Qa5 e8Q+ Kf6 d7 Qa3 c6 Ne7 c7 Qa5 Ne2 Nbc6 b8B Ne5 Nf4 Kf5 Bc4 e3+ Kg3 f2 Kh2 e2 Nd2 Rf8 h8N Rf6 h7 Rb6 Nb3 g3+ Kh3 g2 Be3 g1N+ Kg3 Ngf3 Nf7 Nd3 h8Q Nc1 Qh3+ Kf6 Nh6 Kg7 Qf7+ Kh8 Qg4 Qg5 Rh5 Qg6 Qf8+ Kh7 Rb5 Ng5 Nd5 Nf3 Rb1 a1Q Qf7+ Qg7 Qg5 Qa3 Ra1 Qa5 Qf8 Qg6 Ra4 Nc6 d8B Bf5 Bf6 Ne7 c8Q Bd7 Qg1 d3 Bbf4 d2 Qc7 d1B Qf1 Bc2 Qd1 Bcf5 Qf7+ Qg7 Qg4 Bc6 B6g5 Be8 Qfh5 Qf7 Qgh4 Qg8 Qf7+ Qg7 Qf8 Qg6 Qf7+
1Bq4B/2N1K3/3BN2R/2QB1kr1/p1NP2b1/n2n1R2/qnP3Rp/1N2rQ2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 Be2 d5 Bf1 c5 Ra2 c4 Ra1 c3 dxc3 Bh6 Ke2 Bg7 Ke1 Bf8 Rh4 d4 Rh6 d3 Rh3 Bg7 Rh1 Bd4 cxd4 Qd6 Qd2 Qd7 Qd1 Qd8 Kd2 Kf7 Kc3 e5 Kc4 a5 Kc5 h5 b4 a4 g4 d2 f4 h4 f6 Kg6 f7 e4 f8Q h3 f5+ Kh7 f6 Kg6 b6 e3 f7 e2 b5 e1Q b7 Qe4 b6 Qee8 Ba3 Rh5 Nf3 Qe1 Ne5+ Kh7 g6+ Kh8 g7+ Kh7 g5 Nf6 g8N Qh4 g6+ Kh8 g7+ Kh7 Ne7 Nd5 g8R Be6 Bg2 Ra7 Qf1 d1N Nc4 Nc6 b8B N5e3+ Nd5 Qhg5 b7 Qc8 Kd6 Bg4 Nc7 Nb2 Bd5 Ne5 Qe7 Ned3 f8N+ Kh6 Nfe6 Qf5 Bc5 Qf7 Ra3 Rg5 Rh2 Kh7 Rh8+ Kg6 Rg2 h2 Qf8 Qg8 Ke7 Ra6 Bd6 Rb6 Rc3 Rb4 Be5 Rb3 Rh4 Ra3 Bh8 Ra1 Nbd2 Re1 Nb1 Ned1 Rb3 Nc3 Rh3 Nb5 Rf3 Na3 Rb6 Kh5 Qf5 Kh6 Qe5 Kg6 Qd6 Nc1 Qc5 Ncd3 Na8 Qc6 Bd6 Qgc8 b8B Qb5 Rh3 Qb3 Nc7 Qa2 Rb3 Nc1 Rbf3 Ncd3 Bf4 Kf5 Rh4 Re4 Rh6 Re1 Bd6+
kB6/3N1n2/5NBQ/1P2q1b1/p3RRKb/p1qR1RN1/2P2rnQ/Q1Nn4 b - - 0 1 illegal: Other
kn1Bb3/Q7/2Nr1Q2/pqn2q1p/bP2Q2P/1R6/K1B2B1R/NB3qNN b - - 0 1 legal: proof: d4 b5 e4 c5 f4 e5 dxe5 c4 e6 c3 bxc3 b4 c4 Ke7 a3 Qe8 axb4 Qd8 Qf3 Kd6 e7 Kc7 Qd1 Kc6 e5 f5 Nd2 a5 Nb1 g6 g3 Bg7 e6 Be5 fxe5 f4 Ra2 f3 Ra1 Nh6 Bd3 Rf8 Bf1 Rf4 gxf4 Ng8 Qd4 Qb6 Qd2 Qd8 Qd1 Qc7 Na3 Na6 Bd2 Nf6 Bd3 Bb7 Be2 Rh8 Nb1 Qd8 Be3 Nb8 Bf1 Bc8 Bc1 Ng8 Kd2 Kb7 Kc3 d5 Kb2 h5 e8B g5 h4 d4 c5 f2 c4 d3 f5 g4 c6+ Ka7 c7 g3 c5 d2 f6 g2 c6 Bd7 c8N+ Ka8 e7 Nh6 f7 Ng4 f8B Na6 e6 Nh2 c7 Nf3 Bd3 f1B Ka2 Ba4 Rh2 Kb7 Beg6 Ng5 e8N Qf6 e7 Ka8 Na7 Qc3 c8Q+ Nb8 Qd7 Bc2 Nc6 Nf3 Na3 Na6 Nf6 Ba4 e8Q+ Nb8 Bc5 Ng5 Ne4 Rf8 Rb1 Rh8 Nf2 Ne6 Qf3 d1Q Rb3 Qe5 Nh1 Qde2+ Nc2 Qf5 Bg5 Rh6 Bf2 Nc5 Bd8 Qee5 Bh7 Rd6 Na1 Be2 Bc2 Beb5 Qh8 Qe2 Qf6 Qc4 Nh3 g1Q Qe4 Qgf1 Ng1 Qcd3 Qdg7 Qdd5 Ne5 Be8 Nc6 Qde5 Bd3 Nca6 Qf4 Qd7 Bb1 Qeb5 Bhc2 Nc5 Qe4 Qf5 Qa7#
QnR4B/n4kn1/rQ1BpB2/rNq5/1N1p1P2/1B1R1q2/1RP1N2N/1K1b4 b - - 0 1 legal: proof: a4 b5 axb5 c5 d4 g5 dxc5 f5 f3 f4 e3 Nh6 exf4 Ng8 fxg5 e6 g4 Be7 h4 Nc6 f4 Nd4 h5 Kf8 g6 Ke8 g5 Bf8 h6 Bg7 hxg7 Nc6 Bd2 Nb8 Be3 Qe7 Bc1 Qd8 Kd2 a5 b4 d5 c6 h5 c7 h4 b6 a4 b5 a3 b7 h3 b6 a2 Bb2 h2 Kc1 Rh7 Bc4 Ra6 Na3 Rh4 Rb1 a1N Qd4 Qd6 Bb3 Ra5 Nb5 Ke7 Ne2 Qa3 Rd1 Rh3 Rd3 Na6 b8B Rf3 b7 Ke8 Qb6 Qa2 Bf6 d4 Rb2 Qa4 Kb1 Ne7 g8N Qc4 g7 Nf5 g6 Qc5 Nh6 Rg3 g8N Ng7 Ng4 h1Q+ Ng1 Qf3 Ne7 Bd7 Nh2 Bc6 Ne2 Kf8 c8R+ Be8 Bbe5 Nb8 Bd5 Nb3 Nc6 Rg5 Nb4 Ra6 Bc4 Na5 Bb3 Nac6 Bd6+ Kg8 Bde5 Na7 Bd6 Nh5 g7 Kf7 Bde5 Kg6 g8Q+ Ng7 Qf8 Bc6 Qh8 Kf7 Qhd8 Be4 Qd5 Bg6 Qdc6 Bh5 Qd5 Nd7 b8B Bg4 Bbc7 Nb8 Qa8 Qe7 Na3 Qh3 Nc1 Ne8 Bh8 Bd1 Ne2 Ng7 Bf6 Rga5 Nb5 Qf3 Bce5 Qc5 Bd6
2K1B2q/1N3RB1/N3p2B/4r3/P2Rr2b/bP1p1N1k/Qqn3Bb/2QNQ3 b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 f5 exf5 a5 d4 a4 dxc5 a3 b3 Ra7 Qe2 Ra4 Qd1 Ra8 Be2 b5 Bf3 b4 Bg2 Bb7 Bh3 Bc6 Bf1 Ba4 Bd2 Nc6 Bc1 Na5 bxa4 b3 Nd2 b2 Nb1 Nb3 axb3 Qc7 Qd3 Qb8 Qd1 Qd8 Kd2 Kf7 Kc3 Kf6 Kc4 d5+ Kb5 g5 Kc6 e6 Kb7 a2 h4 d4 c4 g4 f4 g3 c6 g2 c5 d3 h6 Bd6 h7 Nh6 c7 Be5 c8B Ng4 c6 Nh6 c7 Qe7 h5 Nf7 h6 Qd6 Nc3 b1Q Rh4 Qa3 Bd7 Qbb2 c8Q Qd6 Be8 Qd4 Nf3 g1B Qe1 Qe3 Bg2 Qed2 Bh1 Rf8 h8N Bc5 h7 Bb8 Nd1 Nh6 Nf7 Qd4 h8Q+ Ke7 Nd8 Qc2 f6+ Kd6 f5 Bc7 f7 Ra5 f6 Ng4 Bh6 Ne3 Qg7 Qe2 Qg2 Ba3 Re4 Bb8 Qc1 Qeb2 Kc8 Re5 Nb7+ Kd5 Rb1 a1B Rf4 Rh8 f8N Nc2 f7 Re4 Rg4 Bh2 Nd7 Re5 Bg7 Rh4 Nb8 Qdc3+ Rc4 Rhe4 Na6 Qd4 Nd8 Kd6 Nb7+ Ke7 Bh6 Kf6 f8B Kf5 Bfg7 Qdc3 Qge2 Kg4 Q2f2 Kh3 Qfe2 Qb4 Rd4 Qf8 Q2d2 Qh8 Qde2 Qa2 Rb2 Nb4 Rc2 Qb2 Rc7 Nc2 Rf7 Qa2 Qe1d2 Bc3 Qde1 Qb2 Q2f2 Bd2 Qfe2 Bg5 Q2d2 Nb4 Qdc2 Bh4 Q2b1 Nc2 Qa1 Bf4 Qa2 Bh2 Bg2+
3n1N2/1NnqR3/pr6/2K1Qb2/PP3B2/1R4Qp/BN2RN1R/k3rqrB b - - 0 1 legal: proof: e4 b5 f4 c5 c4 g5 cxb5 f5 exf5 Nh6 d4 Ng8 dxc5 Bb7 Qd3 Ba6 Qd1 Bc8 fxg5 e6 g4 Bb7 h4 Bd5 g6 Bc4 g5 Be2 h5 Bf3 h6 Bg7 hxg7 Bb7 Bc4 Ba6 Bf1 Bc8 Kf2 Ke7 Ke3 d5 Kd4 h5 a4 h4 f6+ Kd7 f7 a6 f8N+ Ke7 b6 Rh5 c6 Kd6 c7 Rh6 b7 Rh8 Nc3 Kc6 Bg2 Qe8 Qe1 Rh6 Ra2 Qd7 Nd1 Nf6 g8R Ne8 g7 Rf6 g6 e5+ Kc3 Kc5 Rh2 e4 Bf4 e3 Bh1 e2 Nh3 Ra7 Nhf2 Nc6 b8R h3 Rb3 Nd8 Rh8 Rb7 g8B Rbb6 g7 Rg6 Rh7 d4+ Kd3 Rg4 Be6 Rg5 g8Q Rg1 Ke4 d3 Qg3 d2 Re7 Bb7+ Ke3 Be4 c8N Nc7 Nd6 Bf5 Bf7 Be6 Nb7+ Kc4 Nc3 d1Q Ke4 Q1d2 Ncd1 Qc1 Qa5 Qa1 Qe5 e1R+ Re3 Qd2 b4 Qd7 Rae2 Qc1 Rf3 Qb1+ Ke3 Kb3 Nb2 Ka2 Bg8 Qa1 Ke4 Qc1 Rb3 Ka1 Bf7 Bg4 Bd5 Qb1+ Kd4 Bf5 Kc5 Qd1 Rc3 Qd3 Ba2 Qf3 Rce3 Qg2 Ra3 Qf1 Rb3
nkN1q1bR/3Bn1RP/K1p3p1/5n2/3N1r1Q/P4RN1/4RrqQ/2BQ1Q2 b - - 0 1 legal: proof: e4 b5 c4 a5 g4 h5 gxh5 f5 exf5 d5 cxd5 e6 b4 Bc5 bxa5 Bb6 axb6 Qd7 Bh3 Qd6 Bf1 Qd8 Ke2 Kd7 Kd3 e5 f4 g6 h4 b4 Kc4 b3 Kb5 e4 d4 b2 d6 e3 d5 e2 h6 e1N h7 Nc2 h5 Nc6 b7 Ra7 b8Q Ne1 h6 Qe8 f6 Qe6 a3 Ra4 f7 Ra8 f8R Nf6 f5 Na5 Bh3 Ng4 f6 Qe4 f7 Nb7 Nf3 Nc5 Nbd2 Qb1 Nd4 Na4 Ne4 Qa2 Ng3 Nf3 Rf1 Nb6 Rg8 Ra6 f8Q Ne5 Rf3 Nc6 Rg7+ Ne7 Rb1 Rg8 h8R Na8 h7 Ra4 Qf4 Kd8 d7 Ne3 Qf1 Re8 Qh4 Rf8 Be6 Nf5 Ra1 Qb1 Ra2 Rc4 Ka5 Qc2 Kb5 b1Q+ Ka5 Qf2 Re2 c6 Qb2 Kc7 d8N Bb7 d6+ Kb8 d7 Qe4 Nf7 Qg2 Nd6 Rb4 d8Q+ Bc8 Bd7 Qe6 Nb3 Rf4 Qc2 Qf7 Nd4 Qe8 Qh2 Ng8 Qdh4 Nge7 Qd2 Ba6 Qd3 Bc4 Qdd1 Bg8 Nc8 Ne3 Qde1 Rg4 Rff2 Rf3 Qd1 N3f5 Ka6 Re4 Re3 Ref4 Rfe2 Rf2 Rf3
K5br/RN1Qbp2/1P1r2nQ/R1P1N1Rp/3kB2n/N2b4/3B3Q/1n1NQ3 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 c5 a4 c4 axb5 c3 dxc3 a4 c4 Na6 c5 Qa5 bxa5 Nb8 Kd2 Ke7 Ke3 Ke6 Kd4 d5 e4 h5 c4 a3 g4 a2 b6 Bb7 c6 Bg7 Kc5 d4 a6 d3 c7 d2 c8Q+ Ke7 a7 Ba6 e6 Bb7 g6 Kf6 e7 Ke5 e8Q+ Ne7 g5 Nc6 Qf8 Ba6 Bd3 Nb8 Nc3 Bf6 g7 Bb7 g8R Ba6 g6 Rh7 g7 Nd5 Qd7 Bb7 Nf3+ Kf4 e5 Ke3 e6 Nb4 e7 Ba6 e8N Rh8 Qe1+ Kf4 Be4 Nc2 Nd6 Nd4 Nd1 Nf5 Ne5 Nc6 Nb7 Rd8 a8N Nce7 Nc7 Ng6 Kc6 Nfh4 c5 Bd3 Nb5 Bg5 Na3 Be7 Ne3 d1B Bd2 B1c2 Rg1 Bf6 Rg5 Bb1 Qfd6 Be7 Rf8 Bbc2 g8Q Bb1 Qh7 Bbc2 Rc1 a1N Qh6 Nb3 Ra1 Bb1 Qh3 Rd7 Ra8 Bbc2 Qde6 Rd6+ Kc7 Bb1 Qd7 Bbc2 Ra7 Bb1 Bb4 Nd2 Nd1 Bbc2 Qg2 Nb1 Ra5 Bd8+ Kb8 Be7+ Ka7 Ba4 Bf3 Nf8 Ra6 Bh7 Be4 Bc6 Nb5 Nfg6 R1a5 Bg8 Na3 Bb5 Ka8 Bd3 Ra7 Be2 Nb2 Ke3 Qh2 Kd4 Bd2 Bd3 Nd1
2Rn2R1/k1Qb2N1/pp1NbRPP/5Q1r/N3q1r1/7R/b2b2B1/3KN1BB b - - 0 1 legal: proof: b4 c5 bxc5 g5 a4 h5 f4 e5 fxg5 h4 d4 h3 dxe5 b6 a5 Be7 a6 Nc6 gxh3 Bd6 h4 Na5 h5 Nb7 axb7 Bf8 b8Q d5 e4 Kd7 h4 Kc6 c4 f5 h6 d4 e6 a6 e7 f4 e8N d3 e5 f3 h5 Qd7 g6 Rh7 e6 Rg7 e7 Ra7 h7 Qh3 h8R Qe6+ Be3 Rf7 h6 Qd5 Nc3 Nf6 Rh3 Rd7 Rg8 Nh7 Bg2 Rc7 Ng7 Rf4 e8N Ng5 Na4 Nf7 Qc2 f2+ Kd1 f1B Nd6 d2 Nf3 Rg4 Bg1 Be6 Ne1 Nd8 Qf5 Qe4 Raa3 Be7 Raf3 Bg5 Qa7 Rc8 Qe7 Bd7 Qee5 Kc7 c6 Kb8 c5 Ka7 c7 Bc4 c6 Ba2 Rf2 Ra8 c8B Bf4 Bb7 Rc8 c7 Be3 Ke2 d1B+ Kf1 Bc2 Ke2 Bcb3 Qg3 Bf7 Kd1 Bfe6 Qgf4 Bd2 Rf1 Ra8 c8R Rb8 Bc6 Rb7 Bh1 Rc7 Ba8 Rc5 Bc6 Qe3 Bcg2 Qe4 Q4e5 Rb5 Qc5 Ra5 Qc7+ Nb7 Qf2 Rh5 Qfc5 Bg5 Rf6 Bd2 Q7c6 Nd8 Qf5 Qc4 Qcc5 Qe4 Qc7+
4Qrn1/1Qb2n2/2R1NbP1/2K2n2/kQ4pR/B1Br2p1/BQP1n2N/NB6 b - - 0 1 illegal: Other
n7/2QN2P1/p1Ppr3/B1R1QbB1/2N1n3/r1N1BRb1/1kB3Nb/4QK1b b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 f5 exf5 Nc6 d4 Nb8 dxc5 Bh6 Ra6 Bg7 Ra1 Bf8 fxg5 Na6 h4 Bb7 g4 Bf3 h5 Bb7 g6 Qb6 g7 Bc8 g5 Qg6 hxg6 Nb8 b4 e5 c4 Ke7 f6+ Ke6 c6 h5 c5 h4 c7 e4 b6 Ke5 c6 a6 f7 e3 b7 h3 b5 d6 b6 e2 Nf3+ Ke4 Ra5 h2 Rc5 Nh6 g8Q Be6 c8N Ng4 g7 Nf6 g6 Rh6 Nh4 Rh8 Qh7 Bf5 g8Q Bh6 f8N Nbd7 b8B Bg7 b7 Bh3 Ba7 Be6 b8B Bf7 Bc7 Bh6 Ng2 Bf4 Ba5 Be6 Qgg7 Bf5 Nb6 Re8 Nc4 Nb6 Nd7 Na8 B7b6 Be5 Bg5 Re6 Qc1 Kd4 Nc3 Bf4 Kf2 Kd3 Qe1 Kc2 Rg1 h1B Qh2 Bd2 Qe5 Rh3 Qf7 Bf4 g7 Bh2 Qe7 Nh5 Qd8 Ng3 Qc7 Rf6 Rb5 Re6 Bbe3 Nh5 Rc5 Nf6 Nh4 Kb3 Rg3 Kc2 Rf3 Rg3 Qa1 e1B+ Ke2 Rh3 Ng2 Beg3 Qe1 Kb3 Kd1 Ne4 Bd3 Bh7 Ke2 Bf5 Nd2+ Kb2 Kf1 Rh8 Bb1 Rb8 Bd3 Rb3 Bc2 Ra3 Nc4+
1NK4b/P4B2/n1n1nrB1/k2nPRB1/pb3R2/4N2Q/1p3Q1r/3NNBR1 b - - 0 1 legal: proof: a4 e5 f4 d5 fxe5 g5 h4 d4 hxg5 d3 cxd3 Bc5 d4 Ba3 d5 Bf8 a5 b6 a6 Qd6 Nf3 Qc6 Ng1 Qb7 axb7 Bc5 Rh5 Be7 Rh1 Bf8 b3 a5 b4 Bd7 Qa4 Bb5 Qd1 Ba6 b5 Nd7 bxa6 Nb8 Kf2 Kd8 Ke3 c5 Kf4 Kc7 Kf5 h5 e4 b5 g4 Kb6 d4 f6 Ke6 f5 d6 c4 d5 a4 g6 c3 d7 f4 d8R f3 d6 c2 a7 f2 d7 h4 g5 b4 g7 b3 g6 h3 Qd3 h2 Qh3 b2 Nc3 Na6 b8N Rh7 Bg5 c1B Nd1 Bb4 Nf3 Ka5 Ne1 Nh6 g8B Ba3 g7 Bc5 Rf8 Be7 Rf5 Bf4 Rg1 h1N Bf7 Ng3 g8N Ng4 Nf6 Bb4 Nd5 Nh5 N5e3 Rh8 Rc1 Bh2 Rc4 Ng7+ Kd5 Rh5 Kc6 Ne6 Kb7 Rh6 Kc8 Rf6 Rc7 Bg3 d8Q Bh2 Qd4 Bg3 Bg2 f1N Rc4 Bf4 Qd2 Bh2 Qf2 Bf4 N3c2 Nfe3 Bf1 Nd5 Rd4 Bfd2 Nce3 Bdc3 Rc4 Nd4 e6 Ne5 e7 Ne6 e8B Nc6 Bg6 Be5 Bef7 Bec3 Kb7 Bd4 Nd7 Rh8 Nb8 Rh4 Kc8 Rh7 Qg4 Rh2 Qh3 Bdc5 Rd4 Bf8 e5 Bg7 Rdg4 Bh8 Rgf4
2N1QK2/bB1B4/r1Q1rB1p/qRN2QqQ/rp1q3B/2PPn2k/1R6/6R1 b - - 0 1 legal: proof: d4 a5 b4 d5 bxa5 f5 g4 c5 dxc5 d4 gxf5 d3 h3 g5 Ba3 Nc6 Nf3 Bd7 Ng1 Ne5 Bc1 Bb5 h4 g4 Kd2 Nf7 Ke1 Ng5 hxg5 Bc6 Kd2 Bd7 Ke3 d2 Kd3 Bb5+ Ke3 Bd3 exd3 Kf7 Ke2 Ke8 Ke3 Kd7 Kf4 b5 Ke5 b4 a4 h6 f4 g3 c6+ Ke8 Ke6 g2 c3 Rh7 g6 Rb8 f6 Rg7 c7 Rb7 c8R Rh7 f5 Rf7 a6 Rh7 a7 Rc7 a8B Rc4 g7 Rc7 a5 Rc4 a6 Rc7 a7 Rc5 Rh2 Rb5 Rc5 Ra5 Ne2 g1R Nf4 Rh1 Bh3 Qc7 f7+ Kd8 f6 Ra4 Rb5 Qa5 Qh5 d1Q Rb2 Qg1 Nd5 Qd4 Nd2 Re1+ Ne4 Kc8 Bg5 Re3 Kf5 Kd7 Bh4 e5 Rg1 Bc5 f8B Bb6 f7 Nf6 Kg6+ Ng4 g8Q Ke6 Bfe7 Rh8 Nf2 e4 Bb7 Bc5 a8Q Ba7 Bd8 Re2 Ne7 e3 Ne4 Re1 Nc6 e2 Bdf6 Rea1 Kg7 e1Q Qgd8 Qc1 Ne7 Re8 f8Q R1a3 Nc8 Qg5+ Kh7 Ra1 Nc5+ Kf5 Qff7 Re7 Qe8 Re6 Qfg6+ Kf4 Kg7 Ne3 Kf8 R1a3 Bhg2 Ra1 Bbc6 R1a2 Bd7 R2a3 Qc6 Ra1 Qe2 R1a3 Qf2+ Kg4 Bh1+ Kh3 Qh5 Ra1 Qf5+ Ng4 Qd6 R4a3 Ra2 Qa4 Qf2 Ne3 Rb2 Qa6 Bf3 Ra5 Qc7 R1a4 Bb7 Qb6 Qc6 Ra6 Qf4 Qa5 Qf5+
2N1R3/b3BbB1/1PP1kqQ1/p1Q3Q1/1BQqp3/1qR2n1K/1rBb4/N6R b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 g5 d4 c5 dxc5 f5 gxf5 g4 f4 Bb7 h4 Be4 f6 Bc6 e4 Bb7 f5 Bc8 e5 Nc6 Ra2 Nd4 Ra4 Ne6 Ra1 Ng5 hxg5 Qb6 Be2 Kd8 Bf1 Ra6 f7 Kc7 Qd5 Qb8 Qd1 Rf6 exf6 Bb7 Nd2 Qd8 Nb1 Bc8 Kf2 h5 Kg2 e5 c4 d5 b4 Kd7 g6 g3 b6 e4 c6+ Kd6 b7 d4 b8R d3 b5 d2 g7 h4 c7 Nh6 g8Q Rh7 b6 Be6 c8Q Qe7 c5+ Kd5 Na3 Ng4 Kh3 g2 Bb2 Nh6 Nf3 g1B Nc4 Bg7 f8B Qf7 Nd6 Qe8 f7 Bf6 Qc1 d1Q Ra3 Qd7 Qg6 Be3 Bd3 Bd2 Rc3 Qb3 Be7 Ng4 f8Q Ne5 Bc2 Bf7 Nd4 Nf3 c6 Rg7 Qa6 Be5 Re8 Bh2 Nc8 Bb8 Qaf1 Ba7 Qc4+ Ke5 Qg8 Qd6 Ba3 Qf6 Bab4 Rh7 Qcg1 Rh5 Qe3 Rg5 Qf8 Rg2 Qeg5 Rf2 Bd3 Re2 Nc2 Rf2 Na1 Re2 Kg4 h3 Bc2 h2 Kh3 Rg2 Qf1 Kd5 Qa6 Qd4 f6+ Ke6 Qab5 Rg1 Qfg8 Rb1 Qgc5 Rb2 Q8g7 Bg8 f7+ Qf6 f8B Bf7 Qgg5 Qd4 Qh7 Qf6 Bg7 Qd4 Re1 Qf6 Qhg6 h1Q+ Kg4 Qh2 Rh1 Qd6 Kh3 Qd4 Qbc4+
1NQ3bB/1q2b1Q1/1R3QB1/3bP1RK/8/2P1q2p/R1qNrp2/2Rkr1BB b - - 0 1 illegal: No possible last move, all moves rejected
R1q2rN1/1n3N2/1BR1N1qn/2p3pR/K4P1Q/3N1Br1/1P2Bk2/1Qr2Bq1 b - - 0 1 legal: proof: c4 b5 h4 g5 f4 f5 a4 d5 cxd5 e5 axb5 Nc6 g3 Nb8 h5 Be6 Ra6 Bf7 Ra1 Bg6 hxg6 Bc5 fxe5 f4 Ra5 f3 Ra3 Be3 Ra1 Bf4 gxf4 Qd6 Nh3 Qe7 Ng1 Qd8 e4 Kd7 d4 h5 Kd2 a5 Kc3 f2 Kb3 h4 e6+ Kd6 g7 c6 e5+ Ke7 d6+ Ke8 d7+ Ke7 b6 h3 d5 h2 b7 Qc8 d8N Ra6 d6+ Ke8 d7+ Ke7 Ka4 Nf6 g8N+ Kf8 e7+ Kg7 e8B Ng4 e6 Ra8 e7 Kh7 Be3 Nh6 Nc3 Na6 Nf7 Kg6 b8R Kf5 Nd5 Ke4 Ne2 Kf3 d8Q Ra7 Nc7 Nc5+ Ka3 a4 Nc1+ Kg3 Rb6 Nb7 Ne6 Ra5 Kb4 a3 Nd3 a2 Qb1 Ra3 Bd7 Kf3 e8B Kg3 Be2 f1Q Qf6 Rc3 Ka4 Qg1 Qg7 Kg2 Qh7 Rc1 Ra6 Kg3 Bb6 c5 Bb5 Kg2 Nf6 Rf8 Bec6+ Kg3 Bcf3 Rc3 Ne1 Kf2 Ng8 Re3 Bg4 Rg3 Bgf3 Qf1 Ra8 Qh3 Bf1 Qf5 Bbe2 Qg6 Nd3+ Ke3 Rg1 h1Q Rg2 Qg1 Rh2 Qd8 Rh5 Qc8 Nb4 Kf2 Qh8 Qc7 Rc8 Qd7+ Rc6 Qc8 Nd3+ Ke3 Qc2 Nd8 Ka5 Ng4 Rh2 Nb7+ Kb5 Qb8 Qh5 Nh6 Qg4 Qc8 Rh5 Re8 Qh4 Rf8 Rb1 a1R Rc1 Ra4 Ra1 Rc4 Qb1 Rc2 Ra8 Rc1 Nb4 Kf2 Ka4 Rc3 Ra7 Rc4 Ra8 Rc1 Nd3+
q3b1B1/NBQ1n1n1/1KNb1QP1/2RN1q2/bPppnQ2/3B4/R4N2/4B1k1 b - - 0 1 legal: proof: e4 h5 b4 a5 h4 g5 hxg5 b5 a4 c5 axb5 f5 exf5 Nf6 b6 Ra7 d3 Rc7 d4 c4 c3 Rc5 dxc5 Ng8 Bf4 Rh6 Bc1 Rd6 b5 Rd2 Bd3 Rb2 Bf1 Rb4 cxb4 Bh6 Na3 Bg7 Nb1 Bf8 Ke2 Kf7 Ke3 d5 Kd4 h4 g4 h3 f4 h2 c6 e6 g6+ Kf6 b7 a4 b6 a3 g7 a2 c7 Na6 b8N Bd7 c8B Be7 g5+ Kf7 b7 Ba4 g6+ Kf6 Bd3 Qd7 Nc6 Bb5 b8N Bd6 Bd2 Ba4 Nh3 Ne7 g8B Nc7 Na7 Ne8 Nf2 Ng7 Nc3 Qb5 Re1 h1B Bb7 Bf3 Nbc6 e5+ Ke3 e4 Kd4 e3 Rh1 e2 Rh5 Qa5 Be1 Qc7 Qd2 Qc8 Qe3 Bh1 Qg3 Qe6 Rb1 a1Q Rb2 Qc8 Ra2 Qa8 Qh2 Qb1 Qg3 Be5+ Kc5 d4 Kb6 Bd6 Bd2 e1N Rg5 Nf3 Be1 Ne6 Rh5 Nd2 Nd5+ Kg7 Rg5 Kh6 f6 Ne4 f7 Ng7 f8Q Bf3 f5 Bfd1 Ne5 Be8 f6 Bda4 f7 Qc2 Nec6 Qb1 Rg4 Kh5 Qf4 Qc2 Qf6 Qb1 Rg5+ Kh4 Re5+ Kg3 Rh5 Ne6 Q8g7 Kg2 f8Q Kg1 Q8f7 Qc2 Qh6 Ng7 Qhf4 Nef5 Qc7 Ne7 Nc3 Qb1 Rc5 Qc2 Nd5 Qb1 Bc3 Qf1 Bd2 Qh3 Bc3 Qf5 Be1
1k2QK1N/1n3B2/1Q3P2/2QP1n2/2N2rp1/1q1R2p1/1RR2BrR/Nq1nr1Q1 b - - 0 1 illegal: Other
2R1QB2/pR6/1N2B1B1/1qb2b2/2PpNN2/PQ1K2b1/3nN1nn/2q1k1QB b - - 0 1 legal: proof: g4 h5 b4 e5 f4 f5 gxf5 b5 h4 c5 bxc5 g5 e4 g4 d4 Bg7 dxe5 Bf8 f6 Na6 f5 Rh7 f7+ Ke7 Kd2 Rg7 Ke1 Rg5 hxg5 Qc7 Rh4 Kd8 Rh1 Rb8 Nc3 Rb6 Nb1 Rf6 exf6 Qa5+ Qd2 Kc7 e5 Qb6 Qd4 Kc6 Qd1 Qd8 Kd2 Kd5 c4+ Ke4 c6 d5 c7 b4 a3 d4 e6 h4 e7 b3 e8B h3 g6 g3 g7 h2 Ne2 Kf3 Nbc3 Kf2 Kd3 b2 Qb3 b1N Bg2 Bb4 f8Q Nd2 f7 Bd6 f6 Bc5 Qe7 Bb7 f8N Ba8 c8N Bc6 f7 Nh6 g8B Qa5 Rb1 Ng4 Nb6 Bd7 Ne6 Qb5 N6f4 Nc7 f8Q Nd5 Bg6 Nde3 Qfe8 Bf5+ Be4 g2 Be6 g1B Qg5 Ng2 Qh6 N4e3 Qh3 Nef1 Qe3+ Ke1 Rb2 Bh3 Ba8 Nh4 Ne4 Bf2 Rg1 h1Q Rg5 Bf8 Rc5 Ng2 Rc8 Bf5 Rb1 Bg3 Rb2 Nb1 Bad5 Nh2 Bd2+ Kf1 Bb4 Nd2 Ba8 Ke1 Be7 Bh6 Bf8 Bg5 Bad5 Be7 Na8 Qc6 Qa4 Nh4 Rb7 Qb5 Nb6 Kf1 Qb3 Bc5 Bc6 Bg4 Ng5 Bf5+ Qe4 Kf2 Bcd5 Qc1 Bc6 Bh3 Qe3+ Ke1 Bh1 Bf5+ Ne4 Ng2 Qg1+
n1NQqq2/1K5N/1QP1Q1p1/1B3pr1/2Q1NR2/2P4N/R1bB2nq/2q2R1k b - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 axb5 e5 fxe5 c4 g5 c3 dxc3 Ne7 c4 Ng8 c5 Qf6 Qd5 Qe7 Qd1 Qd8 h4 a5 h5 g6 h6 Bg7 hxg7 Ra6 Na3 Kf7 Nb1 Rf6 gxf6 Ke8 Kd2 Kf7 Ke3 Ke6 Kd4 h5 e4 d5 b4 a4 b6 a3 b5 a2 f7 h4 f8N+ Ke7 e6 Kf6 e5+ Ke7 c6 h3 Kc5 d4 c3 d3 b7 h2 b6 d2 Nh7 Nh6 g8Q Qe8 Nh3 Ng4 Bb5 Ne3 Rf1 h1Q Qe2 d1Q Bd2 Qf8 Qc4 Qe2 Rf4 Qhh2 Rf1 Ke8+ e7 Ng2 Qge6 Na6+ Kd6 Qe4 b8Q Nc7 b7 Na8 Qc7 Qe1 b8R Qc1 Rb6 Ba6 Rb7 Qe1 Qb6 Qe2 Ra7 Qe1 Rf4 Qe2 N7g5 Rh5 Nh7 Qe3 Bc1 Qe4 Nd2 Rg5 Rb1 Qe2 Ne4 a1Q Bd2 Qe3 Rbf1 Qc1 Qbd4 Nb6 Kc7 Na8+ Kb8 Qee1 Qb6 Qe3 Ba4 Bb5 Kb7 Qe2 Qcd5 Bd3 Bb5 Bc2 Ra2 Qee1 Qd3 Qe3 Qed6 Kf7 e8Q+ Kg7 e6 Kh6 e7 Kh5 Qed8 Qee1 e8N Qe2 R4f2 Kh4 Qc4 Kg4 Qde6 Kh4 N4d6+ Kg3 Nef6 Qe3 Nc8 Qe5 Qf7 Qee8 Qce6 Ne1 Rf4 Kg2 Ng1 Kh1 Ne4 Ng2 Qc4 Qe1 Qfe6 Qc1 Nh3+
BbN3q1/R3P3/2bNNK1R/3r1R2/4r1Q1/pBRp1QNk/r1P2B2/1r1b4 b - - 0 1 illegal: No possible last move
N1B1Q1N1/2r2qNR/1P1p1QNr/1kb2qr1/p4Q2/1br1P2Q/3K1BR1/6R1 b - - 0 1 legal: proof: h4 c5 f4 e5 d4 b5 dxc5 f5 a4 g5 axb5 Nc6 Kd2 Nd4 Ke1 Ne7 fxe5 f4 g4 Nef5 gxf5 g4 Qd2 Ne6 Qd1 Ng5 hxg5 Bg7 Kf2 Bh6 Ke1 Bf8 b4 a5 c4 h5 g6 f3 b6 f2+ Kd2 g3 g7 h4 g8N g2 c6 h3 e6 a4 e7 d6 f6 h2 c7 Kd7 e8N Kc6 b5+ Kc5 f7 Bg7 f8Q Bf6 b7 Bg4 b8R Bb2 c8Q+ Qc7 b6 Bf5 Qf6 Ra6 Nf3 g1R Ng7 Bh7 Qh3 Qf7 Ne5 Ra5 Nc3 Rb5 Ng6 Rb4 Nb5 Bd4 Nc7 Qd5 Na8 Kc6 c5 Kb5 c6 Qe6 c7 Qf7 c8Q Rc4 Qe8+ Rc6 Rb7 Bc5 Ra2 Rg5 Rg1 h1R Qc2 Rh2 Qce4 Rh1 Bg2 f1Q Qef4 Qf2 Rd7 Rc7 Bb7 Qf3 e3 Qg4 Bc8 Qf5 Ke1 Rh2 Bd2 Rhg2 Ba5 Rc2 Kd1 Rc3 Rag2 Rb3 Be1 Rc3 N6e7 Bg6 Bf2 Rh6 Ke1 Bh5 Ng6 Bd1 Kd2 Bb3 Nh5 Q7e6 Rh7+ Qd7 Qee7 Qe8 Ng7 Qf7 Qe8+
1rk1Q2N/Qq3RBr/2nK3p/3P2R1/3P2NR/1ppNR2B/2b1B3/1b1b2B1 b - - 0 1 illegal: No proof kernel
2BR3Q/2KNNpnP/r1B3n1/2Q1R3/1n2B1pN/3kPp2/R2rNB1b/7q b - - 0 1 illegal: Other
6B1/KnpQ1PRr/pn1r1P2/1Qb2QR1/2q1QNB1/B2p4/2Bk3r/2N3N1 b - - 0 1 legal: proof: e4 b5 h4 e5 a4 g5 axb5 f5 hxg5 Nf6 exf5 Ng8 d3 Ba6 d4 Bc8 dxe5 d6 c4 Qf6 b4 Ba6 c5 Qd8 c6 Be7 b6 Bb7 cxb7 Bf8 b5 Kf7 Be3 Ke7 Bc1 Ke8 Kd2 Kd7 Kc3 h5 Kc4 h4 f4 h3 g4 h2 g6 Be7 e6+ Ke8 g7 Rh6 g5 Nd7 b8N Qc8 f6 Qb7 f5 Rh7 g6 Kd8 f7 Qg2 f6 Qg3 b7 Qa3 b6 d5+ Kb5 d4 Nc3 Ne5 Na6 Rb8 Nce2 Rh4 Nf4 Qd6 Nb4 Qd7+ Ka6 Rc8 b8Q Rh6 b7 Bc5 Nbd3 Rh3 Ba3 Qd5 e7+ Kd7 e8Q+ Kd6 Nc1 Nc4 Be2 Rh7 Bg4 Rd8 Qe4 Na5 Qc8 Ne7 b8Q Nb7 Qcf5 Nc8 g8B Nb6 g7 Qa2 Rb1 Qc4+ Rb5 Rd7 Ngh3 Rd8 Rg1 h1R Rg2 Rh2 Ng1 R7h6 Bh7 Rd7 Bg6 Rh7 g8B Rd8 Qa4 d3 B6h5 Rd7 Bd1 Rd8 Bhg4 Rd7 Bc2 Rd8 Qg6 Rd7 Qef5 Rd8 Qd7+ Ke5 Qh5+ Ke4 Qhf5+ Ke3 Qa8 Qb3 Ra5 Qc4+ Qab5 Nd6 Rg3+ Kd2 Qae4 Nb7 Qdd5 Rd6 Qd7 Nd8 Q5f5 Ne6 Kb7 a6 Ka7 Nd8 Bh5 Bb4 Rg7 Bc5 Bg4 Nb7 Qg6 Qc3 Qb2 Be3 Rg5 Qc4 Qgf5 Bc5 Qbb5
2BQR3/1R1NPB2/1B1B2Q1/2r1q3/K2p1pQ1/1nP1q1Rb/R2pbnN1/4k3 b - - 0 1 illegal: Other
2q1Nqr1/q3QRNN/2B5/P1pb2B1/1B1Q4/n1KpQ3/2P1BpkN/3R1b2 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 Ke7 bxa5 Ra7 f4 Ra8 e6 Ke8 e4 b5 Ke2 Ke7 Kd2 Kd6 e5+ Kc6 e7 Ra6 Ne2 Kb7 Ng1 Re6 Ke2 Kc6 Kd2 Rh6 e6 Rh5 Nc3 Rc5 Nb1 Re5 g3 g5 fxe5 f5 Ke1 f4 Bg2+ f3 Bf1 Na6 Nh3 Nc5 Ng1 Bh6 h3 g4 h4 Bg5 hxg5 Nd3+ Kd2 Nf4 gxf4 Nh6 Ke1 Ng8 e8Q h5 Kd2 Kd5 a4 Ke4 a6 d5 a5 h4 f5 h3 f6 b4 f7 h2 f8B f2 g6 d4 g7 c6 e7 g3 e6 b3 a7 b2 a8B g2 Nf3 g1Q Be2 Ba6 Nc3+ Kf4 Ne4 b1Q Neg5 Kg3 Nh7 Nh6 g8Q+ Ng4 Qg5 Qbb6 Qe3 Kg2 Qf7 Bc4 e8N Rg8 e7 Qc8 Ng7 Ne5 e8N Qa7 Bb4 c5 Bc6 d3 Kc3 Bd5 Qe7 Nc4 Qdd2 Qd1 Qd4 Na3 Q2e3 Qg1 Bd2 Qb1 Re1 h1B Nh2 Qa2 Rad1 Qc4+ Kb2 Qb5 Kc3 Qbb8 Q3e5 Qd6 Bg5 Qf6 Qee3 Qf8 Qef4 Kh3 Rg1 Bhg2 Qfe4 Bf1 Rg4 Qe6 Rf4 Qc8 Qee3+ Kg2 Rf7
QN1Q3N/RB6/1n1b2n1/pp3BpQ/N4kB1/1Q1PP2r/1Bn2q2/qRK5 b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 h3 gxh3 Kd7 h4 Ke7 h5 Ke8 a5 b6 a6 Nc6 Na3 Rb8 Nb1 Rb7 axb7 Nb8 Ra2 a6 Ra1 a5 b4 Bf5 Ra2 Bd3 Ra1 Ba6 b5 Bc5 bxa6 b5 Ba3 Bd6 Bc1 Bf8 h4 Ke7 a7 f5 a8B c5 e6 Kd6 h6 Ke5 h5 g5 d6 c4 e7 f4 e8B c3 d7 c2 d3 f3 Kd2 f2 h7 Nc6 b8Q+ Kf5 h6 Nd4 Nf3 Bg7 Bg6+ Kg4 Bb7 Qc7 d8Q Qe5 Nc3 Qc5 Rb1 Nc6 Bb2 c1N Qa8 Qf5 Bh3+ Kf4 Nd4 f1Q Bg4 Ne5 Nc6 Na2 Qb3 Bf8 Nb8 Nd7 Na4 Bd6 Rh4 Qf7 B6f5 Nb4 Rh5 Qf2 Kc1 Nb6 Rh3 Nc2 Re3 Bb4 Re7 Bd6 Rd7 Ne7 Rc7 Re8 h8Q Ng6 h7 Re3 Qhe8 Qg7 h8N Rh3 Rd7 Nf8 Qh5 Qf6 Bbf3 Ng6 Ra7 Qg7 Bb7 Qc3 Qa2 Qa3 Qb3 Qa1 e3+
1R2B3/PqRN1Pq1/4Q2N/p1K1R3/BB2p2B/b1Nk2n1/q1R3p1/5rrQ b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 c4 a4 c3 dxc3 Rh6 c4 Rh7 c5 Rh8 a5 b6 a6 Bb7 axb7 Qc8 Bg2 Qc7 Bf1 Qd8 b4 a5 b5 Na6 bxa6 Rh7 Ba3 Rh6 Bc1 Rh8 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 b8R Ke4 h4 g5 f4 e5 c6 g4 h6 g3 f6 g2 f7 d6 a7 Qc8 f5 Qe8 f6 Qe7 c7 Qe8 c8R Be7 f8B Qd7 h7 Qf5 h5 Qg4 h6 Qf4 Qe2+ Qe3 Ra2 Bd8 Nc3+ Kf4 Rc7 Ne7 Nf3 Qd2 Rh5 d5+ Kb5 Nf5 Bb4 Rf8 h8Q d4 h7 d3 Kc6 b5 Kc5 Ng3 Qe1 Nf5 Be2 Re8 Bd1 Ng3 Qg8 e4 h8N Rf8 Qh1 Ke3 Ne5 Rf7 Nd7 Be7+ Kd5 Rf8 Re5 Rc8 Bb2 Qe2 Qe6 d2 Nf7 Bc5 B4a3 b4 Nh6 b3 Bb4 Rd8 Ba1 b2 f7 b1Q Bb2 Qg4 B2a3 Qg7 Rb2 Bf8 Be7 Qa1 Kc5 Qa2 Bb4 Rc8 Nb1 Rd8 c4 Kd3 Ba4 d1Q Nc3 Qdb1 Rc2 Rc8 Kc6 Qbb2 c5 Rd8 Bh4 Qbb3 Rb5 Rac8 Rb8 Qd5+ Kb5 Qa8 c6 Qb7+ Nb6 Rd6 Kc5 Be7 Nd7 Rh8 Ng4 Rh5 Nh6 Rf5 Rcc8 Rf1 c7 Ra1 Re8 Bf8 c8B Rg1 Re7 Rd4 Nb6 Rd6 Rc7 Be7 Bcd7 Bf8 Qe7 Rf6 Be8 Rff1 Kb5 Qa8 Qe6 Be7 Nd7 Qb7+ Nb6 Bg5 Kc5 Bc1 Nd7 Bb2 Qhh3 Ba3 Qh1
q1q2Q2/kNB1NBBQ/2B1p3/2r5/1q1Nn2P/r1p3p1/RPRQ1NK1/6n1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 g4 c4 Bg7 cxd5 Bh6 Bc4 g3 Qb3 Bd7 Qa4 Bg5 hxg5 h5 Nf3 h4 Rh2 h3 Rh1 h2 Qd1 Be6 Ng1 Bf7 Bf1 Bh5 Qf3 Bg4 Qd1 Bh3 gxh3 Rh7 Be2 Rh6 Bf1 Rh8 d4 Kd7 f4 Kc8 f6 Kb7 b6 a5 d6 c5 f5 e6 d5 a4 f7 a3 f8Q c4 g6 c3 g7 a2 d7 Qe7 d8N+ Kc8 f6 Rh5 d6 Rh7 f7 Qc7 b7+ Kd7 h4 Nf6 g8B Rh8 Bf4 Ng4 Bb5+ Qc6 Kf1 Nh6 Qc2 Nf5 Nf3 Na6 b8N+ Kc8 Nd4 Qe8 Kg2 Nh6 Rc1 Ng4 Nb7 Ne5 Qh7 Nc5 Nd2 Ra3 Nbc6 Ne4 Rc2 Nf3 Ne7+ Kb8 d7+ Ka7 d8Q Ng1 Bc6 Qd7 Bc7 Qc8 Qf5 Rh5 Qh7 Rc5 Qd7 Nd6 Ne4 h1Q+ Kf1 Qf3+ Nf2 Qe2+ Kg2 Ne4 Qd5 Qa6 Qg5 Qb6 Qd2 Ng5 Qfg7 Qb3 f8B Ne4 Bf7 Qb4 Qgh8 Qc4 Bg7 Qb4 Rf1 a1Q Qf8 Qa2 Ra1 Qd5 Ra2 Qdd8 Bd6 Qa8 Bf4 Qdc8 Bc7
2N1q3/b5bK/1QBp3P/7N/R1bp2PB/5nR1/Rp3NBq/R2B1knQ b - - 0 1 illegal: Other
2Bq1q2/1P1NR1q1/3B4/1NK1b2n/R2Q1p2/2p5/N2rpPkN/BR1R1Qq1 b - - 0 1 legal: proof: d4 b5 c4 d5 cxd5 Kd7 e4 a5 a4 Ra7 axb5 Ra8 d6 Ke6 d7 Ra6 d5+ Kf6 Qh5 Re6 d6 Re5 Qe2 Rd5 Qd1 Ke6 h3 f5 b6 g5 exd5+ Kf7 g3 f4 g4 Ba6 Na3 Bd3 Nb1 Bf5 gxf5 Nc6 h4 g4 Qe2 Nd4 Qf3 Ne6 Qd1 Ng5 hxg5 Qb8 Rh3 Qa8 Rh1 Qd8 Kd2 c5 Kd3 e5 Kc4 h5 b4 h4 f6 Kg6 b5 Kf5 f7 Ke4 b7 h3 b8B h2 g6 g3 b6 a4 g7 a3 b7 a2 Qe1+ Kf5 Bh3+ Kg5 Na3 Kh4 Nf3+ Kh5 Bb2 g2 Nb5 Qe7 d8Q g1Q d7 e4 d6 Nh6 g8R e3 Rg7 e2 Rd1 Qf6 Ba1 Ng4 Rb1 Be7 f8N Rh6 Kd5 c4 Kc5 c3 Rf7 Qg7 Rd1 Bf6 Re7 Be5 Rd4 Qf1 Ra4 Qg1 Qb6 Re6 d8N Nf6 d7 Rd6 Nc6 Rd2 d8R Q1g5 Rf1 h1Q Nb4 Qhg1 Nh2 Kh4 Bd6 Nh5 Bc8 Q5f6 Nd7 Kh3 Qc6 Qff8 Qd5 Q1g5 Qd4 Q5f6 Bb2 a1Q Na2 Qb1 Ba1 Kg2 Rh1 Rb2 Qed2 Qbg6 Rb1 Qh4 Qc1 Rd2 Qe1 Qgg5 Nf1 Qh1 Nh2 Qg1 Bc7 Qfh8 Nb8 Q5g6 Qc4 Rc2 Rdd1 Q6f7 Bd6 Rd2 Qd4 Qd8 Nd7 Qff8 Qf1+
NR1RQ3/1P3Rp1/1Q1p1r1k/1np3p1/6Rr/3NB3/Pn4B1/QKB1q1Bb b - - 0 1 illegal: Other
3Q2n1/r2p2Nr/QB1p2kB/b1PP3R/5R1b/Qp5p/1n5R/NBQ3BK b - - 0 1 illegal: Other
8/kP2B3/2bKpnQp/2B1npR1/BP3B2/R1NQN3/bQ1r2pR/4b1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1bBQn2R/P1p5/K5NQ/2Bn1pq1/bN1Q1QR1/1RR1pP2/p3N3/3n1k2 b - - 0 1 legal: proof: a4 d5 c4 h5 g4 b5 gxh5 d4 cxb5 d3 exd3 Rh7 d4 Rh6 d5 Rh8 b4 g5 a5 a6 b6 Ra7 b7 Rh6 b5 Rb6 axb6 a5 Qc2 Bg7 Qd1 Ra6 bxa6 Bf8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kb5 Ke4 d4 e5 h4 f5 d6 g4 d7 g3 d5 a4 h6 g2 h7 a3 h8R a2 h5 Qh4 d8Q Qf4 h6 Nf6 d6 Bg7 h7 Nc6 b8R Ng8 b7 Qh6 d7 Qd2 f3+ Ke3 Qa4 Kf2 Rh4 e4 Ba3 e3 Nc3 Qe1 Nge2 g1N Bc5 Bd4 Rc1 Nf6 Nd5 Nh3 Nb4 Nh5 Rc3 Qa1 Rg4 Ng7 Qf6 Qb2 d8Q Bd7 Qh6 Ne8 Qdg5 Qb3 Qf4 Ne7+ Ka5 Qg8 Qd1 Be5 Qdd4 Bb5 Rc8 Ke1 b8Q Qg5 Qa8 Bd6 Rb8 Ba4 Rb7 Nd5 Qd8 Nf2 Ba7 Bc2 Ng3 Nb6 Nd5 Qe7 Rhg8 Qf8 h8N Ba3 Ng6 Qe7 Rh8 Ba4 Bc4 Qf6 Ne2 Nd1 Bb5 Kf1 Bd7 Bf8 Bc8 Bc5 Rb8 Qg5 Rb7 Nd7 Rbb3 Ndf6 Nb4 Nd5 Qd3 Bf8 Bd4 Bc5 Qd2 Ba7 Bc5 Nf2 Qdd4 Bb8 a7 Nd1 Ka6
q2qBN2/1RR3QQ/p1Pp2p1/R1R5/2pP2KB/2k4N/1rNbBq2/1rB5 b - - 0 1 legal: proof: f4 h5 g4 e5 fxe5 b6 gxh5 Ba6 a4 Qg5 b4 Qe7 a5 Bc8 a6 Bb7 axb7 Qd8 c3 c5 Bb2 b5 Bc1 Na6 Na3 c4 Nb1 Nc5 Nh3 Nf6 Ng1 Nd5 bxc5 b4 Ra2 b3 Ra1 Nb4 cxb4 Qa5 Ba3 Qc7 Bc1 Qd8 Kf2 Ke7 Kf3 Ke6 b8R Kd5 h4 Kd4 e4 f5 e6 a6 e5 d6 e7 g6 e8B b2 e6 f4 e7 Bh6 b5 Rg8 c6 Qc7 b6 Rf8 b7 Rf7 Nh3 Qd8 Na3 b1Q Be2 Qb5 Kg4 f3 Nc2+ Ke5 d4+ Ke4 Ra5 Bg7 h6 f2 h7 f1Q h8Q Qb3 h5 Rf5 h6 Rb5 h7 Be5 Qg7 Rd5 h8B Qdb6 Rc8 Rc5 b8N Bf4 Nd7 Rb5 Rc7 Bd2 Nf8 Rb8 Qe1 Qe3 Qh4 Rb1 Qhh7 Qff2 Rg1 Rb7 Rg3 Qh6 Rb3 Qa7 Rbb5 Qa8 Rc5 R7b5 Qf7 Qhe3 Bf6 R5b2 Qfg7 Qb3 Bh4 Qbb8 Bf7 Qd8 e8R+ Qe7 Rb8 Qd8 Na1 Ke3 Rbb7 Ke4 Be8 Ke3 Bf3 Kd3 Be2+ Kc3 Nc2
4QN1r/BQr3RQ/1pRq1p2/1B5P/N3K3/p1p2P2/1bBq1r1B/4R1Qk b - - 0 1 illegal: No possible last move, all moves rejected
1B1Q4/1bqB1n2/1rRnrq2/2Q1NN1K/Q1P2b2/2RnR2P/6rb/1k1QN2R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 f4 e5 b4 g5 c6 a5 h6 d5 b6 d4 h7 d3 b5 a4 c7 d2 b7 a3 b6 a2 Nc3+ Ke3 Ne4 Bg7 Nd6 e4 Nf3 Ra6 Bh3 Kd3 Kh5 e3 f6 e2 f7 e1R f8Q g4 f5 g3 f6 g2 f7 g1B Bd7 Re6 h3 Nh6 Qe8 Rg8 f8Q Nf7 h8R Bh2 Nf5 Bh6 Qc5 Nc6 b8N Nd6 b7 Ne5 Nc6 Rg2 b8Q Bb7 c8R B6f4 Ne1+ Kc3 Rh7 Qc7 Re7 Nef7 Ne5 Rb6 Rb1 a1Q Ba3 Qd8 Rc6 Qc7 Qa8 Qb2 Qaa4 Qa1 Qd8 Qb2 Qg4 d1N Rc1+ Kd2 Re8 Nf2 Rc3 Nd3 Qf3 Qc2 Bb4 Kc1 Qe2 Kb2 Qd1 Qf2 Ba5 Rb4 Bb6 Rb5 Ba7 Rb6 Bb8 Qd4 N5f3 Qg7 Ne5 Qf6 Rg8 Nf2 Rgg3 Nd3 Qd2+ Kb1 Re3 Nb2 Qe2 Nd3 Qed1+
1N1N2b1/1r1q1r1k/4N2Q/BB1Q2P1/qqQK2PB/1bRNB2n/8/b1Rnn3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 Kg7 g4 e5 f4 a5 b4 c5 d6 h5 b6 h4 b7 h3 f6+ Kh7 f7 h2 b5 a4 f5 a3 b6 a2 d7 Nc6 b8N Na7 f6 Nb5 b7 Ra7 Ne2 Ne7 Nf4 Ng6 Na3 Bg7 f8Q Nc3 Qf7 Rf8 Qc4 Rf7 Ne6 e4+ Ke3 Qf8 d8B Nf4 d4 Nh3 d5 Qe7 d6 Qd7 Rb1 a1Q Nc2 Qaa4 Qdd5 Bh8 Rg1 h1B Ne1 Bf3 Rg3 Bd1 Rf3 Bb3 Ba5 Bg7 Nd3 Nd1+ Ke2 Qb4 Be3 Qda4 d7 Bh8 Bd4 e3 d8N Qd7 Rg3 Qda4 Kf3 e2 Ke4 e1N Rc1 Bd7 Be3 Bg7 Qcd4 c4 Be2 c3 Q4c4 c2 Kd4 Be8 Rf3 Re7 Bf1 Bf7 Rg3 Bg8 Rf3 Bh6 f7 Qd7 f8Q Rf7 Na6 Qda4 b8B Rab7 Bg3 Qd7 Bh4 Bg7+ Ke4 Ba1 Nb8 Nc3+ Kd4 Qda4 Rb1 c1Q Be2 Qca3 Rc1 Qd7 Bf1 Qaa4 Be2 Kh8 Qh6+ Bh7 Rf2 Ng2 Nb2 Qf8 Qb4 Ne1 Bb5 Nd1 Qc4 Qfb4 Rfc2 Kg8 Rc3 Kh8 Qf8+ Bg8 Nd3 Kh7 Qh6#
BBK4Q/3rrkNq/NR3P1R/2Q5/N5r1/PR1bb1Q1/1nn2n1R/qb2Q3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 e5 Kf3 c5 Kg4 g5 h4 b5 d4 c4 f4 b4 d6 b3 a3 e4 h6 e3 h7 b2 h5 c3 a6 e2 a7 e1Q d7+ Ke7 d5 c2 h6 Qc3 f6+ Kf7 Kf5 g4 d6 g3 Bg2 Qc4 Nh3 Qf1 Nc3 b1B Rh2 Qe2 Na4 Qee7 Qe1 Bg7 Ng5+ Kf8 f7 Ba2 Rb1 Ba1 Rb6 Bb7 Ne4 Be5 Nec5 Nc6 Na6 Nb4 Bd2 Qc7 d8N c1N d7 Nf6 Bc3 Bd6 Be5 Ng4 Bd5 Rb8 a8Q g2 Bf3 Rc8 Qb8 g1R Bd5 Qh4 Ke6 Bc5 f5 Nf2 Bf4 Rhg8 h8R Nc2 h7 Ncd3 Bd6+ Kg7 f6+ Kg6 f8Q Be3 Bg3 Rg7 Qc5 Qd4 Rb3 Bc6 Bf3 Bb5 Ba8 Qb7 Bf4 Qb2 Kd6 Bb1 Ne6 Qa2 d8R Re7 Ng7 Nb2 Rd7 Qh1 Rb7 Bd3 R7b6 Kf7 Qbc7 Rg2 Kc6 Rf8 Kb7 Rd8 Bg3 Rd6 Kc8 Rdd7 Qf4 Qa1 Qh4 Nh3 Bb8 Nf2 Qg3 Rg1 Rd8 Qe4 h8Q Qh7 Rh6 Rb7 Rd4 Rbd7 Rdh4 Rg2 Rh2 Rg1 Qh3 Rg4 Qg3
1B1B1r1Q/B6B/2P2nRq/1R3bRn/q4bQP/1r1QQ1br/N2Kn1k1/3N4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 f4 Kf6 b4 g5 h4 d5 h6 e5 b6 a5 b7 a4 b5 g4 c6 d4 c7 d3 c5 e4 h7 g3 b6 a3 c6 e3 Nh3 g2 Nc3 g1B Rb1 e2 Na2 Nd7 b8B Ra6 b7 Bf2+ Kd2 e1R Ba7 Bd6 b8B Re3 Rb5 Rb6 Rg1 Qf8 Rg5 Bg3 Nf2 Qh6 Qe1 Rf3 Qe3 Rb7 Nd1 Be5 Nac3 a2 Bb2 a1N Na2 Nc2 Bc3 Nd4 Ba5 Ne2 B5b6 Kf7 f6 Ke6 f7 Ndf6 f8Q Nh5 Qa3 Ngf6 Ba5 Rf8 h8Q Bd7 c8Q Rb6 Rg6 Kf5 Qd6 Rb7 Bd8 Be6 Rc5 Rb3 Rb5 Bh2 Bg2 Rh3 Bd5 Bd7 Bg8 Bg3 Bh7 Be6 Qb6 Ke4 Qbc5 Kf3 Qe3+ Kg2 f5 Nd7 f6 Bf5 f7 Ndf6 Qd4 Bd6 Qg4 Bf4 Qa6 Rg8 Be7 Rd8 f8R Re8 Rfg8 Rf8 R8g7 Bc8 Qa3 Rc3 Rgg5 Kh2 Nb2 Bf5 Bd8 Kg2 Kd1 d2 R7g6 Rd3 Qd6 Ra3 Nd3 Rc3 Nf2 Rd3 Kc2 Ra3+ Qdd3 d1Q+ Kb2 Qa4 Nd1 Rb3+ Kc2 Nd4+ Kc1 Ne2+ Kd2
rq2r2n/BqR1R1N1/rP4B1/5Qb1/2RnN3/k3n2B/b2P3K/qB1QRN2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 g4 Kd6 f4 a5 Kf2 c5 Kg2 h5 f6 e5 f7 a4 f5 c4 f6 e4 g6 c3 g7 c2 b6 h4 b5 Kc5 g5 Kb4 g6 e3 b7 e2 d6 e1N+ Kh2 a3 d7 a2 Nf3 h3 Bb2 c1R Nc3 Nd3 Ne4 Qe7 d8N Ra6 Bd4 Qc5 Ne6 Nh6 g8B Rb1 g7 Rb2 Bh7 Bd7 g8B Qb6 Rc1 a1Q Rc4+ Ka3 Ng7 Nf5 Bg6 Ne5 B8h7 Nbc6 b8R Be7 f8R Nf7 Rfc8 Be6 Rc7 Ne3 Re8 Qb8 Ba7 Ra2 b6 Nd4 Rg1 Bd8 Re7 Re8 Bg2 Bd5 Re1 Nh8 f7 Be6 f8Q Bd5 Kg3 h2 Qf5 h1Q Bh3 Be6 Nh2 Bf7 Rd7 Bg5 Nf1 Qf3+ Kh2 Bg8 Neg3 Qfb7 Re7 Rc2 R4c6 Ba2 Ne4 Rc4 Rc5 Rca4 Rc4 Qd8 Bb8 Ra8 Ba7 Ra6 Qe5 Qdc8 Qf5 Qcb8 Qc5+ Kb2 Bf7 Nb5 Nc3 Rc8 Bb1 Re8 Bfg6 Nd4 Qf5 Ka3 Ne4
4r1n1/1bb3P1/5Q1B/1NKP3q/RBQBrq2/1k1NRn1Q/R6n/1B1r1q1Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kd4 a5 f4 h5 g4 c6 b4 h4 b6 h3 f6 h2 b7 a4 f5 a3 f7 a2 g6 e6 g7 Ra4 f6 Ra7 g5 Rh3 b5 Rh7 b6 Rh3 g6 Rh5 Bd3 Qd7 Na3 Rh7 Bb2 Rh8 Nf3 Qc7 Nb5+ Kd7 d6 e5+ Kc5 Ke6 Re1 h1Q Qc1 e4 Re3 Qh5+ Ne5 Ra4 Bb1 Be7 f8Q Bd8 d4 Qf7 d7 Bc7 d8B Rb4 Rh3 e3 Be7 e2 Re3 e1N Qd8 Qf8 f7 Nf3 Bc3 Nh2 Bb2 Qe8 f8B Qf7 Bg5 Qf4 Bh6 Nf6 Bd6 Re8 g8R Ra4 Rf8 Ng8 g7 Qf1 Rf2 Rb4 Rfe2 Ra4 Ba3 Qf4 Bb4 Nd7+ Kc4 c5 b8Q Qf1 Qa8 Bb7 Be7 Qf4 Bf6 Qf1 Nd3+ Ne5+ Kc3 c4 d5+ Kf5 Kd4 c3 Kc5 Nef3 Bd4 c2 Qh4 Bb8 Qa6 Bc7 Qd2 c1Q+ Qc3 Ng4 Qh1 Ngh2 Rg2 Qd2 Qc1 Qdf2 Qa8 Qg3 Qd8 Qf4 Qh4 Raa8 Rg4 Re4 Qh3 Rae8 Ne5 Bc8 b7 Kf6 b8Q Bb7 Qa7 Ke7 Nd3 Kd7 Qb6 Ke7 Bc2 Kd7 Rb1 a1R Rb2 Rb1 Qd2 Rd1 Qf6 Kc8 Bb1 Kb8 Nd6 Ka7 Qc1 Ka6 Nb5+ R8e6 Ba3 Ka5 Ra2 Ka4 Bb4+ Kb3 Rgg2 R4e5 Ra4 Re4 Rga2 Re8 Qc4#
Q2RQn1Q/4B1P1/q1N2q1R/1bPBn2K/b1Q4B/3N4/2r3rb/Brk1n2N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 d5 Kg4 e5 f4 a5 b4 d4 c4 d3 c6 e4 c7 h6 b6 e3 b5 d2 g6+ Kf6 g7 e2 c5 e1Q b7 a4 b6 a3 Qc2 d1N Nc3 a2 Nce2 Ra3 Bb2+ Rc3 Kh5 Bd7 c8Q Qd2 g4 Ne7 g8Q Bg7 Nf3 Qd4 Qe8 Bb5 Ne1 Q8d6 Ng3 Nd7 b8Q Nc6 b7 Nce5 Nd3 Rg8 Qa8 Qa6 b8N Nf8 Bg2 Ne3 Rad1 a1R Bd5 Ng2 Nc6 Rb1 Ba1 Ne1 Qb3 Rcc1 Qc4 Rc2 Rh3 Bh8 Nh1 Ba4 Kh4 h5 g5+ Kg7 g6 Kh6 f6 Qb2 f7 Qbb6 Na7 Qf6+ Kg3 Bb5 f5 h4+ Kf4 Kh5 Nc6 Bg7 Rh2 h3 Kg3 Kg5 Rdd2 Nfd7 f8B Bh6 Be7 Nf8 Qe6 Rg7 Qg8 Ba4 Qh8 Bb5 Rhe2 h2 Re4 Rg8 Rh4 Bg7 Rh6 Ba4 Nhf2 h1B Rd1 Bf3 Nh1 Be2 Bd8 Qe7 f6 Bf1 f7 Qf6 Rh2 Kf5 Rh7 Bh6 Be7 Be3 Bd8 Bg1 Rh6 Be2 Kh3 Bh2 Rd2 Qg7 Bg5 Qf6 Kh4 Bf1 Kh5 Rg7 Bd4 Rg8 Bh4 Rg7 Ndb4 Kf4 Ba1+ Ke3 Rd4 Rg8 Nd3 Kd2 Qb3 Ne6 f8B Kd1 Be7 Nf8 Bf3+ Kd2 Rd8 Rg7 Bd5 Kd1 Ndb4 Bfb5 Qc4 Kc1 Bd6 Re7 g7 Ra7 Be7 Rd7 Bg2 Rd2 Bd5 Rg2 Nd3+
1b5R/1n1BkNQ1/1Qqb4/2B2RN1/5bPN/P1bK1B1Q/b1rNn3/4Q1nr b - - 0 1 illegal: No proof kernel
B1Q1N1n1/1QBKbB1R/n1R3r1/2N2k2/4P2P/n1Rb3q/b2b3b/R2NNr2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Ra3 Ke7 Kf2 g5 Kf3 c5 Ke4 a5 d4 f6 h4 c4 b4 c3 b6 g4 d6+ Ke6 d7 g3 h6 c2 d5+ Kf7 Kf5 g2 b7 a4 h7 Na6 b8Q Be7 b5 Bb4 d6 Qe7 e6+ Kg7 d8N Qb7 d7 Ra7 e7 Nh6+ Ke6 Rf8 h8R Kg6 e8B+ Rf7 b6 f5 Qd5 f4 Rh7 f3 Nc3 f2 Nf3 g1B Bf4 c1B Bg2 f1B Rb3 Qa8 Nb7 a3 Nd6 a2 b7 a1N Qc7 Bbc5 b8R Ng8 R8b6 Nc2 Bh2 Bb7 d8N Bd2 Qc8 Na3 Be5 Bc6 N8b7 Bb5 Qdc6 Bd3 Bf4 Bcd4 Nc5 Bf6 Q6c7 Rb7 Bh2 Be7 Kd7 Kf6 Bg3 Rg7 Bf7 Rg6 Ne8+ Kf5 Re6 Rb5 Qc6 Rb4 Bc7 Rf4 Qb5 Bd4 Rg1 Be5 Bh1 Bg2 Ra1 B5d6 Ne1 Bd5 Nd1 Rf1 Rc3 Ba2 Qb2 Qe4 Bf3 Qd4 Ba8 Qe3 Qbb7 Bh2 Rc6 Qh3 e4+
q5r1/NrR1r3/2P1k3/1N3QBN/BK3Q1n/4rn1Q/P2NBr2/bRQb1n2 b - - 0 1 illegal: No possible last move, all moves rejected
1b2b1Q1/Q4N1n/RP4q1/2k1RBPN/3n2rn/3n1bR1/2r1B3/nKQBBR2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 Kd2 c5 Kc2 h5 g4 c4 e6 Kd6 b6 a4 b7 c3 b5 a3 g6 a2 b6 f4 g7 f3 e5+ Ke7 g5 f2 d6+ Ke8 d5 h4 d7+ Ke7 Nh3 Ra4 Na3 Ra6 Nc4 Ra8 Be2 f1B Bd2 Ra5 Qc1 Ra4 Nf4 h3 Be1 h2 Nh5 Qe8 d8R Bg2 Rf1 h1N Nd6 Ng3 Nf7 Nf6 g8Q Nc6 b8Q Bf3 Qa7+ Bd7 Ra8 Bg7 Rb1 Rd4 Rb3 a1N+ Kb1 Rg4 Ra3 Nd4 Ra6 Rf4 Rc8 Ngf5 Rc5 Nh4 Rb5 Qf8 Rc5 Rg4 d6+ Ke8 Rb5 Nh7 Rd5 Ba4 d7+ Ke7 d8R+ Bd7 Rc8 Bf6 Rcc5 Qh6 Rca5 Qg7 Ra3 c2+ Kb2 Bh1 Rg3 Bf3 Bd1 Qg6 Rda5 Bg7 Rc5 Bf8 Ka2 Ke8 e7 Nhf5 Qb2 c1N+ Kb1 Nf6 Nf4 Nd3 Qc1 Rh2 Nh5 Nh4 Rd5 Rc2 Be2 Rc7 Bd1 Bc6 Rda5 Kd7 e6+ Kc8 Be2 Nh7 e8B Bd6 e7 Bd7 Rb5 Rc3 Re5 Bb8 Nd8 Bdc6 Bf7 Be8 Bb3 Rc4 Bbd1 Rc7 Nf7 Kd7 Qa8 Rc3 Qa7+ Kc6 Bd2 Bd7 e8B Rc4 Be1 Rc2 Re7 Kc5 Re3 Ba4 Bd7 Bb5 Bf5 Be8 Re5+
1Q3RQ1/Bbn1nbP1/1Brb4/3B2Nq/3N2BP/7b/1KNRr1Rr/1b1N2k1 b - - 0 1 illegal: No proof kernel
1rn3Q1/1N2n2B/nn5k/RrB1K1Qr/4N3/b2PQB1N/b1qR3P/N3B2b b - - 0 1 illegal: No possible last move, all moves rejected
1Q3N2/1Nn4B/q1B1bB2/rQ6/1Q1n2Rb/P2Qk3/5rPn/KbrBNbR1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 d4 Ke7 Kd2 c5 Kc2 b5 Kb2 h5 e4 f5 a3 b4 g6 c4 g7 b3 a6 h4 e6 Kd6 e7 h3 e8B h2 e5+ Ke7 d6+ Ke6 a7 Kd5 e6 Ke4 d7 f4 d5 f3 d6 f2 e7 Nf6 g8B Rh6 Ne2 Rh3 Qe1 Rh6 Nf4+ Kd4 Bh7 Ng4 Be2 f1B Qb4 Rh3 Ng6 Qa5 d8N Be6 d7 Qa6 Nd2 Rf3 Bd1 Ke3 Nb7 Rf2 d8Q c3+ Kb1 b2 Bc6 Bh6 e8Q Bg5 Nf8 Bh4 Rg1 h1R Nf3+ Rd2 Ne1 Nh2 Qd5 c2+ Ka2 b1B+ Kb2 Kf2 Qd3 Re2 Bg5 c1N+ Nc2 Rd2 Bf6 Ne2 Qh5 Nd4 Qhb5 Re2 Ra2 Rd2 Ka1 Re2 Ne1 Rd2 Qg6 Ke3 Rb2 Rf2 Rd2 Qb6 Rc2 Na6 Rc4 Nc7 Qc2 Qa6 Qg6 Rd8 a8Q Rd5 Qb8 Rdf5 Qb6 Ra5 Q6b5 Rd2 Qgf5 Rf2 Qd3+ Kf4 Bb3 Be2 Rf1 Rg1 Nf3 Rh1 Qdf5+ Ke3 Qg6 Nf5 Rg4 Nd4 Rc1 Rd1 Ba4 Rd3 Rg1 Rc3 Ne1 Rc1 Bd1 Bf1 Qgd3+
kRRBQ2B/1R1b4/4n3/b2R1Pq1/4bP2/rrnBQn2/3NB3/r1NQ1n1K b - - 0 1 illegal: No possible last move, all moves rejected
q2R4/2Br2BN/n1br1bPQ/1B3R1n/rNB3Q1/1nP5/1N1QQ2k/1n3Kb1 b - - 0 1 illegal: No possible last move, all moves rejected
3N3q/R1P2P2/Bn2K1bN/NBR1n3/1rnBb1Q1/4B1b1/RQ4r1/2n1krR1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 c4 g5 f4 a5 b4 a4 h4 a3 b6 a2 h6 e6 c6 g4 h7 g3 h5 g2 c7 Ne7 b5 Bg7 c5 Rf8 h8N Ra3 c6 Bb7 c8B Qc7 h6 Rg8 h7 Ng6 Ne2 g1R Be3 Qd8 c7 Ne5 Ng3 Nbd7 Qg4 Nc4 Nf7 Rb3 h8B Rb4 Nd2 Qe8 Be2 Rf1 Nb3 Bc6 b7 Ndb6 b8Q e5+ Kc5 d4 Rg1 e4 Na5 d3 Ba6 d2 Nd8 d1B Rc1 a1N Rc2 Rf3 Ra2 Bc2 Qb7 Rf1 Kd4 Ke7+ f6+ Kd6 f5 Bh6 f7 Bf4 f8R Nb3+ Kc3 Kd5 f6 Bd3 f7 Nc1 Nf5 Bg3 Bhd4 Qe5 Nh6 Qh8 Ne6 Rg7 Ra8 Rg6 Nd8 Bc2 Bd2 e3 Ra7 Bf5 Bd3 e2 Be3 e1N Be2 Nf3 Qb8 Na8 b6 Nfe5 b7 Nab6 Bd3 Nd2 Bdb5 Ndc4 Qc8 Rg8 b8R Bg6 Qe2 Ke4 Qb2 Kf3 Qe6 Nc8 Rb6 Bce4 Rc6 N8b6 Rc5 Bc2 Qf5+ Ke2 Qe4 Ke1 Qg4 Nf3 Bg7 Nfe5 Kd4 Na8 Kd5 Nab6+ Ke6 Bce4 Ndc6 Rd8 Bf6 Rd2 Nd8 Rg2 Bg7 Nf3 Bgd4 Nfe5 Qb1 Nd5 Qa1 Ndb6 Qb2
1bQNk3/qB2rB1K/1n3BRN/3b3q/3b1nQ1/1NNRb1B1/r3P1P1/Qb6 b - - 0 1 illegal: Other
1bR3QK/1Bqb2r1/q2N4/1B4BB/b3rk2/PN2RP2/2Q1Q2b/2nR1nRb b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 c5 Kf4 b5 Ke5 h5 d4 c4 g4 b4 g6+ Kg7 a3 h4 f3 h3 a6 h2 a7 b3 d6 c3 d7 c2 g5 b2 d5 e6 d6 Rh7 Nd2 b1B Ne4 Nf6 Qe2 Qe7 d8R Qc7 Re8 Nh5 Bf4 Ba2 Rd1 c1B Qc2 Be7 Bb5 Bb3 Ne2 Bd7 Nd4 Ba4 Nb3 Ng3 Rhg1 Na6 Qe2 Rb8 a8B h1B Bb7 Nc5 Rc8 Bf8 Re8 Nf1 f6+ Kh8 f7 Rg7 Kf6 e5 Re6 Re8 Be3 Nd3 Bd2 Bc8 d7 Bd6 d8Q Bd7 Qc8 Bb2 Be3 Nc1 Bf4 Bd4 Re7 Ba7 f8R+ Rg8 g7+ Kh7 Re6 Bb8 Kf7 Be7 Nd6 e4 Bd2 e3 g6+ Kh6 Re4 Bf6 Re6 Be5 Re7 Qd8 Qc2 Bh2 Re4 Re5 Re8 Qb6 Rc8 Qa6 Kf6 Re7 Re6 Rge8 g8B Rg7 Bf7 Kh5 Be1 Kh6 Bh4 Re7 Bg5+ Kh5 Qe1 e2 Re3 Re4 Qf2 e1Q Qfe2 Qg3 Be8 Rge7 Bf7 Qf4+ Kg7 Qe5+ Kg8 Qg3 Be8 Rg7+ Kh8 Qf4 Nf5 Qc7 Nd6 Rf7 g7 Kg6 Nc4 Kf5 g8Q Rg7 Nd6+ Ke5 Bh4 Kf4 Bh5 Qd8 Be7 Qc7 Bg5+
1b1n1Q1q/3r4/q1QB1R2/Pn2NRnB/N5R1/3RB2P/n3k2n/KB3bQr b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a6 Kd7 d4 Kd6 Kd2 b5 Kc3 c5 Kb2 e5 f4 g5 a4 g4 h3 c4 f6 e4 h6 g3 f5 g2 h7 b4 a7 b3 a5 e3 f7 e2 f6 e1N Be3 Nc6 Ra4 c3+ Ka1 c2 Bd3 c1N Nf3 g1Q Nc3 Qf1 Ne5 Rb8 a8B Ba6 Be4 Qb5 Rf1 Na2 Rf5 Nf3 Rc4 Rb7 Na4 Nh6 Qc1 Be7 f8R Rg8 f7 Qbb6 h8B Qb5 Nd3 Nh2 Rb4 Rg1 Be5+ Kd7 d6 Ke6 d7 Rh1 Rc4 Bd6 Qg1 Bb8 Bg3 Qf6 d8Q Qh8 Qc7 Qb6 Bf3 Qa7 Bh5 b2+ Kb1 Bb5 Qb6 Qa6 d5+ Kd7 d6 Ke6 Be5 Kd5 Rg4 Re7 B5f4+ Ke4 d7 Kf3 d8R Rb7 Rd6 Nd8 Rdd5 Rd7 Bd6+ Ke2 Rdd4 Bc6 Ne5 Bg2 Be4 Bf1 Rd5 Nc1 Qc6 Na2 Kc2 b1N Kb2 Nbc3 Bb1 Nb5 Ka1 Ng8 Rd3 Nf6 Rfg8 Ne4 f8Q Ng5 Rg6 Nd4 Re6 Nb5 Ref6
1Q6/1Nrb1rnP/B1n1RkPq/1RB2rR1/6K1/3Qq1BN/1N1r3b/1R1N1r2 b - - 0 1 illegal: No proof kernel
B1r2q2/bQkBn3/1R1bb2Q/1q3n1b/N1r2Rq1/BRP1BN2/5QP1/2Q2K2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 b4 h5 f4 a5 g6 e5 g7 d5 c6 d4 c7 Kd7 b6 e4 b5 h4 b7 a4 f6 d3 f5 h3 f7 e3 b6 a3 f6 a2 Ba3 h2 Nc3 e2 Rb1 a1B Rb3 Bd6 f8Q Ra4 f7 Bb4 Qc1 Qe8 Nf3 Ne7 g8B Bd6 Qfh6 Nbc6 b8B Nd4 f8Q Rc4 b7 Ndf5 Na4 Bd4 c3 Ba7 Bd5 Qf7 Rg1 h1Q Be4 Qhh5 Bd5 Be3 Ba7 Qg4 b8R Qfg7 Qf7 Qf8 R8b6 Rg8 Ba8 Bec5 Qce3 d2+ Kf2 d1B Qff6 Rd4 Qc1 Rc4+ Ke1 Rh8 Rh1 Bg1 Rh4 Bgc5 Qd4 Rg8 Kf2 e1Q+ Kg1 Qe2 Qf2 Qe5 Be2 Be3 Kf1 Qb5 Bd3 Qg6 Rf4 Qg4 Rb7 Kc6 Be2 Be6 c8Q+ Bc7 Qb8 Bd6 Rb6+ Kd7 Qb7+ Kd8 Qe4 Kc7 Qeb1 Qf7 Bd3 Rc8 Bde4 Qf6 Bec6 Qf8 Bd7 Qh3 Nh4 Bh5 Nf3 Qg4 Qe4 Bec5 Qb7+ Kd8 Ra6 Be3 B7c5 Bd4 Bcb4 Ba7 Rb6 Qfg8 Bc5 Qf8 Qd5 Kc7 Be3 Qh4 Qe4 Qg4 Qb7+
3r1Q2/2Q3r1/2N1bn1R/NnN2Nb1/1Br3B1/1P2P2K/k1BR1B1R/3qqrq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg2 c5 h4 a5 d4 f5 e6 Kd6 e3 g5 b3 a4 h6 g4 e7 c4 e8B g3 b6 a3 h5 f4 h7 c3 h6 c2 b7 a2 Ne2 Be7 Nbc3 Qa5 Bd2 c1Q Ne4+ Kc7 d6+ Kb6 d5 Qa6 d7 Kb5 d8N+ Bd7 d6 Bg5 Bb4 Bf6 Bg6 Bb2 Nc5 Be6 d7 Ra7 Qd6 Nc6 b8N Qd1 Qc7 Nf6 Ndb7 Nd4 d8B Qa5 Bc2 Rg8 Rb1 a1R h8Q Ra4 h7 Rf8 Be7 Rd8 Qf8 Bc3 h8R f3+ Kg1 g2 Kh2 f2 Nc6 Be1 Rh6 Bc3 Kg3 g1Q+ Bg2 f1R R1h2 Bb2 Be1 Ba1 Bf2 Rc4 Rb2 Qae1 Nba5 Rb7 Kh4 Ra7 Bf3 Rb7 Na7+ Kb4 Ng3 Ka3 N7c6 Nb5+ Bg4 Ra7 Nf5 Rb7 Rb1 Ka2 Kh3 Be5 Rc1 Bf4 Rb1 Bg5 Bd6 Qd4 Rd1 Qa1 Rd2 Qad1 Ne4 Ra7 Bb4 Rb7 Nc5 Ra7 Qf4 Rg7 Qc7
4B1nq/4b1Q1/1n1r1B2/Qbk1K2R/QR1r2RP/N6P/1RrQB1q1/2Nr3n b - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 cxd5 b5 fxe5 h4 axb5 h3 gxh3 Bb4 h4 Bf8 Kf2 Ke7 Kf3 f5 Kf4 c5 d4 a5 b4 g6 e4 a4 b6 a3 b5 c4 b7 a2 b6 c3 h3 c2 d6+ Kd7 d5 Ra5 e6+ Ke8 e7 Kd7 e5 Qe8 Ne2 Rh6 Qd4 Qd8 Rg1 Ra4 Bb2 c1R Rg4 Rc2 Na3 Qe8 Rd1 a1R Nc1 Rb1 Be2 g5+ Kf3 f4 Ke4 f3 Rf1 Nc6 b8R f2 b7 Nb4 Re1 f1N Ba1 Qh5 e8B+ Kd8 e6 Ng3+ Ke5 Nh1 d7 Kc7 d6+ Kc6 d8Q+ Bd7 e7 Nd5 Qd2 Kc5 Q8a5+ Bb5 d7 Nb6 d8Q Rd4 Qd7 Rhd6 Rf1 Qh6 Rf5 Qh7 Bh5 Qh6 e8Q Qh8+ Qg7 Be7 Bc3 Ra1 Qd7 Rb1 Be8 Ra1 Rg2 g4 Rh5 g3 Qg4 Rd3 Qga4 R6d4 Rf2 g2 Rf4 g1Q Rg4 Qh2+ Ke6+ Nd5 Rg1 Rb4 Qd8 Bc4 Na2 Bf8 Rg4 Rd1 Nc1 Qg2 Bf6 Be7 Ke5 Rb6 Qc7+ Rc6 Rd8 Ba6 b8R Rd4 Rb2 Bd3 Ra8 Ba6 Qd8 Rd6 Rab8 Bc4 R8b3 Bb5 Q8a5 Nb6 Rb4
rq3rN1/2N1B2q/4N3/3rB1bk/1q1RPQ2/Bn1Nr3/RP4b1/Qn1K2RB b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 c5 d4 g5 h4 f5 e6 a5 e7 Kf7 e8N g4 d6 g3 h6 Kg6 h7 f4 b6 f3 d5 c4 b7 c3 d7 g2 d6 c2 Nc7 a4 Bd2 c1Q Ne2 g1Q Ra2 a3 Bb4 Bh6 h5+ Kg5 Nf4 Ne7 Nc3 Qc5 N3d5 Nbc6 b8Q Rf8 h8B Nd4 Be5 Nb3 Nf6 Nd5 Nd3 Nc3 Bg2 Nb1 Ng8 f2+ Ke2 f1R Rg1 R1f5 Bh1+ Kh4 Ke1 Qe7 d8R Bg5 d7 Qh7 h6 Qf4 Qc1 Qb6 Kd1 Kh5 Bf6 Qc5 Be7 Rd5 Qa7 Qfd6 Qf4 Qdb6 Qa5 Qb8 Qa4 Qd4 Bbd6 Qdb4 Qa7 Qf5 h7 Ba6 h8B Qh7 Bhe5 Bb5 Re8 Bc4 d8N Bb5 Ra1 a2 Nde6 Bd7 Rd8 Bc8 Nc5 Bh3 N5e6 Bg2 Qa5 Qd4 Ba3 Qdb4 Rd6 N1d2 Rc1 a1R Ra6 Nb1 Rc4 Qd6 Rd4 Qdb6 Bac5 Ra3 Qa4 Qb4 Ra7 N3d2 Qa5 Rb3 Qa1 Rc3 Ra2 Nb3 Nf2 Re3 Nd3 Qa5 Ba3 Qa4 Ne8 Qab4 N8c7
N3q3/1B3BN1/R1n1rrB1/1nBQ2Rq/Pb2NRR1/2Qn3P/2nKb3/5b1k b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 d4 f5 h6 c5 d6 Ke6 h3 b5 h7 g5 d7 c4 a6 c3 a7 b4 Ba3 f4 Ba6 f3 Nd2 b3 Bc5 g4 Bb7 b2 Ne2 b1N Rg1 c2 Ng3 c1N Nf5 Qe8 d8R g3 Rd5 g2 a4 Ne7 Ng7+ Kf7 e6+ Kf6 e5+ Kg5 Ra3 Kf4 Ne4 Nec6 e7 Nb4 e6 Nc3 Kd2 f2 Rg5 f1B d5 Ncd3 d6 Nc2 d7 Nc6 d8R Nb5 Rd6 Be2 Rb3 Kf3 Rb4 Rb8 a8N Rg8 Rh1 g1Q h8Q Qg4 Rf1+ Kg2 Rf4 Bf1 Rbd4 Kh1 Rc4 Qgh5 Rb4 Qeg6 e8B Bd7 e7 Bg4 Bf7 Be2 e8B Be7 Nc3 Rf8 Ne4 Rd8 Rdf6 Rd6 Rfg4 Re6 Rff4 Nba7 Rb6 Nb5 Ra6 Bd6 Bg8 Rff6 Bgf7 Qgh7 Bg6 Qg8 Bef7 Qb8 Qc8 Be7 Qc7 Qe8 Qe5 Bf8 Qda1 Bd6 Qd5 Be7 Qc3 Bd6 Bd4 Bb4 Bc5
3B1R1K/rr1Q3b/1br4q/N6n/P1nN1PrQ/R2q4/2Nk2N1/nR1R1Q1B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Kf4 c5 d4 b5 h4 c4 a6 c3 h6 c2 a7 e6 h5 g6 d6 b4 d7 b3 d5 b2 d6 Qb6 d8N Nd7 h7 Bb7 h6 Rb8 a8R Ne5 d7 Be4 Nc6 Bc5 Na3 b1Q Ne2 Bd3 Be3 c1R Bg2 Rc3 Ned4 g5+ Kg3 g4 Kf4 Q1b5 Nac2 g3 Rb1 Be4 Rg1 Qd3 Bh1 g2 Ra4 Ra8 Na5 Ra7 Re1 g1R d8Q+ Re7 Qe8 Ra7 a3 Rb3 Qd7 Nc4 Qe2 Qa6 Red1 Rbb7 Qf1 Qc6 f3 Bb6 Bf2 Rg2 Bg3 Qd6+ Kg4 Qf4+ Kh5 Ke5 Kg6 Nf6 Kg7 Rc8 h8Q Rc6 h7 Rg1 Qd8 Nh5+ Kg8 Rg2 h8N Rg1 f6 Bh7+ Kf7 Rg2 Bh4 Qh6 f4+ Ke4 Ng6 e5 Ne1 Qf3 Nec2 Rg4 Bg5 Rb8 Nh4 Rbb7 Ng2 Qe2 Re1 Kd3 Red1+ Kc3 Bh4 e4 Q8e7 Qd3 Qed8 Bg6+ Kg8 Bh7+ Kh8 e3 f7 e2 f8R e1N Nce3 Nc2 Q8e7 Na1 Nec2 Ng7 Qee1+ Qd2 Bd8 Nh5 Qh4 Qd3 Rab4 Nf6 a4 Nh5 R4b2 Nf6 Ra2 Nh5 Rdc1 Kd2 Ra3 Rf6 Re1 Rc6 Red1#
1QR3b1/2rnB1Nr/2BR4/Nq1br1bP/rQBBRq2/P1K2Q2/R2n3k/8 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kf7 Kd2 Kf6 f4 e5 h4 b5 d6 g5 a3 c5 d5 g4 a6 b4 a7 c4 h6 g3 h7 b3 h5 g2 d7 e4 d6 e3+ Kc3 e2 Nf3 g1Q Ng5 e1R Ra2 b2 Rh4 Na6 Be3 Bb7 Nd2 b1B Bd4+ Re5 Nb3 Qb6 d8R Qg4 d7 Nc5 Qf3 Qb5 Ne6 Bd5 Na5 Bh6 Ng7 Nb3 Rc8 Bg5 d8R Nd2 Rd7 Bbe4 Rd6+ Be6 Bd3 Bd5 Bf1 Ne7 Bd3 Ng6 Be2 Nf8 Bf1 Rb8 a8B Nd7 Bc6 Ra8 Be2 Re8 h8Q Re7 Qd8 Ra7 Qc7 Rf7 Qb8 Ra6 Kc2 c3 Bc4 Ra8 Kd3 c2 Kc3 Ra7 Rh1 Re7 Re1 Rc7 Re4 c1R+ Kd3 Rb1 Kc2 Rb4 Kc3 Kf7 f6 Ra4 f5 Qf4 Rc2 Re8 Rb2 Rh8 Ra2 Rh7 Ne8 Kf8 f7 Ke7 Ng7 Kf6 f8B Bh6 Rb2 Kg5 f6 Kh4 Be7 Bg8 f7+ Bg5 f8Q Rh6 Qd3 Rh7 Ra2 Kg4 Qb1 Kg3 Qb4 Kh2 Qf5 Bge6 Qg4 Bg8 Qf3
rqNKQ1Qb/B4N2/2N2QB1/2qQR1P1/5k1N/r3n1n1/Bb2bP1R/n2b4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 g4 e5 b4 c5 d4 a5 b6 a4 f6 a3 f7 c4 b5 h4 g6 h3 g5 a2 g7 c3 b7 h2 b6 c2 Na3 Nd7 Kf5 e4 b8Q+ Qc7 b7 e3 Nc4+ Ke7 d6+ Kd8 Ke6 e2 d5 e1Q+ Be3 c1N Nf3 Ne7 g8B Qc3 Nh4 Nb3 Ba7 Ne5+ d7 Bg7 Bd3 Nf5 Nb6 Ng3 Bg6 Nc4 Qd4 Bf6 Rae1 a1B Re5 Bb2 Qe4 Qc5 Qd6 Rh7 b8N Ba6 Nc8 Bh8 Qf8+ Kc7 d8N Q3e3 Nbc6 Qf4 Qe8 Ne3 f8Q Na1 Qf6 Be2 Qd4 Rd7 Nf7 Rd6+ Ke7 Bd1 Rg1 h1B Rg2 Be2 Rh2 Bhf3 Nb4 Ra6+ d6+ Kb7 Qd2 Ra3 Nc6 Bd1 Kd8 Bfe2 Rd5 Qe5 d7 Qb8 Rf5 Ka6 Re5 Kb5 Bb1 Kc4 Qd5+ Kc3 Bgh7 Ba6 Bhd3 Kd2 Bg6+ Ke2 Ba2 Bd3 Nd6 Bc4 Qdg8 Ba6 Nf7 Bd3 Nf5 Kf3 Nh4+ Kg4 Bh7 Bf1 Bg6 Bfe2 Nf3 Nc4 Nh4 Qbb4 Kc7 Ne3 d8Q Qb3 Qd2 Qbb5 Kd8 Qb8 Qfe6+ Kf4 Qdd5 Qcb5 Qed6 Qc5 Qf6+
2RQ4/1nNBNRK1/2qq4/3bBPb1/qn4Q1/N1P2RB1/k1rr2B1/1q1rR3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 a5 Ke4 g5 Ke5 d5 h4 a4 f4 a3 b4 g4 h6 e6 h7 d4 h5 g3 c6 g2 c7 a2 f6 d3 c3 d2 f5 Ra6 h6 Ra3 b6 Be7 b5 Na6 b7 Nc5 b8Q Bb7 c8B Bd5 b6 Nb7 Qg4 d1R Ne2 g1Q Bg2 Qc5 Nd4 Qc6 Bd7 Rb3 Be3 Rb2 Bf4 Rbd2 Na3 Qf8 Rc1 a1Q Rh3 Bd8 Bg3 Ne7 Ndb5 Rg8 Nc4 Qa4 h8B Rg5 h7 Rh5 Rh1 Rh2 Nca3 Rc2 Rf1 Qh6 Bh1 Rhd2 Nc7 Kf8 f7 Qhf4+ Kf6 e5+ Be6 e4 Rf3 e3 Bg2 e2 Ra1 e1Q Rb1 Qe8 Bd7 Nc6+ Kg6 Ke7 Be5 Qg1 h8R Nb4 Kg7 Qf1 f8R Qd3 Bd4 Kd6 Rf7 Bg5 Be5+ Kc5 Qd8 Qfe4 Ra1 Qe6 Re8 Qd6 Ref8 Qdb5 Rb1 Qbc6 Ra1 Na5 b7 Qe1 b8N Nb7 Qe7 Qf1 Rc8 Qd3 Qd8 Qe4 Nb1 Kc4 Na3+ Kb3 Rb1+ Ka2 Rc1 Qcc4 Nc6 Qcb3 Ne7 Qb1 Bf1 Qc4 Bh3 Qcc6 Bg2 Rh1 Re1 Rf1 Re4 Rfd1 Re1
B1r1R2b/1q2Q3/5Q1n/2kN1PN1/q2nR1P1/2r1bb1K/3qQRNQ/1qB4R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 Kd6 f4 a5 Kf2 h5 Kg3 c5 d4 e5 f6 a4 b6 c4 f7 e4 b5 e3 f5 h4+ Kh3 e2 g6 e1B b7 c3 b6 c2 g7 a3 Ne2 a2 Bg2 Qf6 Nbc3 Ne7 g8R Bh6 f8Q Bg7 Nf4 Qh6 Qf6+ Be6 Qe2 Bf2 Re8 Nbc6 b8R Ra3 b7 Be3 Be4 Ng8 Ng2 Qf4 Rf1 Nh6 Rf2 Rg8 Rbc8 Bh8 b8Q+ Kd7 d6 Bd5 Rb1 a1Q Re6 Rb3 Rce8 Qa4 Bf3 Be4 Nd5 Rc3 Re5 Na7 Qe7+ Kc6 d7 Nb5 d8Q Rf8 Re6+ Qd6 Qf6 Rg8 Qde7 Rf8 Bb2 c1Q Ba3 Qb2 Rh1 Qb1 Bc1 Rg8 Nb6 Rf8 d5+ Kc5 Re5 Nd4 Re6 Bd3 Re4 Ba6 Qh7 Qf4 d6 Bb7 d7 Bc6 d8N Qg5 Kh2 h3 Nd5 Bb7 Kg3 h2 Nf7 Bc6 Kh3 Ba8 Rg1 h1Q+ Qh2 Qf4 Ng5 Bc6 R8e7 Rc8 Re8 Qb7 Rd1 Qe1 Qc7 Qd2 Qcf7 Qfb8 Rh1 Qb1 Q7g7 Q8b7 R4e7 Ra8 Nc7 Rc8 Qgf8 Qb8 Q8f7 Bb5 Ba8 Qb7 Qf8 Bd3 Nd5 Be4 Q8g7 Bf3 Re4 Rc7 Qd7 Rc8 Qde7+
q4Q2/1B3k1r/2rR4/1QP1KNn1/3BRR2/1Rq2N1N/1P1qbQ2/1nb1qQr1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kd3 e5 c4 a5 h4 g5 f4 g4 b6 e4+ Kd4 a4 h6 e3 b7 a3 h7 g3 h5 e2 h6 e1R c6 g2 f6 a2 c5 Re5 c7 Kf7 f5 Qd6 Ba6 Be6 c8N Ne7 Rh4 Ra7 Rf4 Re1 Nh3 g1Q+ Be3 Nd7 b8R Rc7 Bb7 Qg3 Nd2 Rg1 Qf1 Ne5 Rd1 a1Q Nf3 Qa8 Re1 Rc6 Qb5 Ng8 Ne7 Nc4 Bf2 Bd7 Ree4 Nd2 Rd8 Bc8 Be3 Qd7 Ke5 Nb1 Bd4 Qe8 Rd6 Qg7 Be3 d4 Qf1 d3 Bd4 d2 Qb5 d1Q Qf1 Qd7 Qb5 Ke8 Qf1 Qg3 f7+ Kd8 f6 Qde1 Nf5 Bg7 Nfg5 Qgc3 Qb5 Ne7 Qf1 Nd5 Nf3 Nc7 Qb5 Ne6 f8Q+ Kc7 Qf7 Ng5 Qfc4 Kd8 Qf1 Ke8 Qf2 Rg8 h8R Kf7 h7 Bh6 Qff1 Rd8 Rg8 Rf8 h8Q Qd8 Qf2 Be6 Qbf1 Bc4 Rg6 Be2 Rg8 Ne6 Rg3 Bg5 Qh4 Rh8 Qh6 Rh7 Qf8+ Kg6 f7 Qda5 Qh8 Qcd2 f8Q Qac3 Qb8 Kf7 Qhd8 Bh6 Qb6 Ng5 Qb5 Qb3 N3h4 Qbb4 Rb3 Qbc3 Nf3 Qdc2 Qh8 Ne6 Rh4 Bc1 Rhg4 Q2d2 Rgf4 Ng5 Qf8+
1qR2Q2/rBb4b/3BB2N/1PK1Q1qN/RP4R1/n4rb1/3bn3/B1kR2Nn b - - 0 1 illegal: No possible last move, all moves rejected
2q2bq1/2R1Q1NB/6BP/n3B1Q1/P4b1N/BR2N3/1K1Nkn2/Rbr1r1bn b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc3 b5 a4 c5 f4 e5 h4 g5 a6 c4 a7 e4 f6 g4 f5 g3 h6 b4+ Kb2 g2 f7 b3 f6 e3 h5 e2 h7 e1Q h6 Ne7 Nd2 Qg3 Qh5 Rg8 h8B Rg6 Ne2 g1B Qg5 Bg7 f8N Qc7 f7 Bf5 Ne6 Nbc6 f8N Na5 Nc3 Rc8 a8B Bb1 Nd1 Nf5 Bd3 Qb7 Rh3 c3+ Ka3 c2 Kb2 Rc7 Ne3 Qc8 Bc6 Qg2 Be8 Ng3 Be4 Rf6 Bh7 Rf1 Ng6 Bf8 Nh4 Re1 Ng7 Nh1 Beg6 Qgg4 Rf3 Qge6 Rh3 Qg8 Rf3 Kd7 d6 Kc6 d5+ Kc5 d7 Kd4 d8R Rc5 Nhf5+ Kd3 d6 Ke2 Nh4 Rc3 Rd7 Rc7 Ka3 b2 Qe7 Rc6 Rc7 Rc4 d7 Rc5 d8Q Rc4 Ndf1 Rc5 Bd2 c1B Bb4 Bd2 Qg5 Rcc1 Qd7 Be4 Qdd8 b1N+ Kb2 Nc3 Ba3 Bb1 Qde7 Ne4 Rg3 Nef2 Rh3 Bb4 Nd2 Bd6 Ne6 Bdh2 Be5 Bf4 Ng7 Rf1 Nef5 Rfd1 Rb3 Re1 Ne3
q3b2b/1Q2r1Br/q1NK2P1/6b1/R5N1/1RR2PN1/1Qb2Bkn/1RnBq1B1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 c5 d4 h5 b4 a5 g4 h4 g6+ Kf6 g5+ Kg7 b6 a4 b5 a3 b7 h3 b6 c4 d6 h2 Kd5 c3 d7 e4 f3 c2 Be2 a2 Na3 e3 Qd2 Rh4 f6+ Kh8 g7+ Kh7 f7 Kg6 Bd1 Kf5 g6 Kf4 Nc4 Kg3 Ne5 e2 Ng4 e1Q Ne2+ Kg2 Ke6 Bc5 f8B Nc6 b8Q Nb4 d5 Rh7 b7 Ra7 d6 Nf6 g8R Bd4 Bg7 Nd3 Qb4 Bb2 Be3 c1B Bg1 Bg5 Rf8 Bd4 Qb2 Nc1 Qc7 Be5 b8R Ba6 Rb1 a1Q Rb3 Qa8 d8N Bd3 d7 Qa6+ Nc6 Bc2 d8B Bd4 Qf7 Re7+ Kd6 Bc3 Bdb6 Bd4 Nge5 Ng4 Rc8 Bc3 Bgf2 Bd4 Rf1 h1B Ng3 Nh2 Ng4 Bc3 Bh6 Bh8 Bg7 Kh3 Ra1 Bg2 Rg1 Bf1 Ra4 Bb5 Bbc5 Re2 Qb7 Re7 Rf1 Kg2 Bg1 Bd3 Bcf2 Bf5 Rb8 Bd7 Rc3 Qee2 Re1 Qe4 Ree3 Be8 Red3 Qe2 Rb3 Qf1 Rdc3 Qe1 Qd7 Bb1 Rba3 Ne2 Ra1 Be4 Rbb3 Bc2 Qb7 Nc1 Rb1
2qr4/Q1r1B1bB/1rbnPR2/3nqQkN/5N1r/R3N2Q/1NQP4/B2b3K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kg2 c5 h4 a5 e4 f5 b4 g5 b6 c4 b5 c3 d6+ Ke6 h6 f4 d7 g4 b7 a4 h7 a3 h5 a2 h6 c2 b6 g3 Nf3 Ra7 Nd4+ Ke7 e6 Kf6 e7 Nc6 e8N+ Kg6 b8Q Nce7 b7 Nc6 e5 Nce7 e6 Nf6 Nc3 Ra5 Qa7 Rf5 b8Q Ne4 Na4 Nd6 Bb2 c1R Nc2 Rb1 Nf6 Kg5 Qb5 Rd5 Nh5 Bb7 Ne3 Bc6 Qc2 Bg7 Bd3 Qc8 Rf1 f3+ Kh1 f2 d8B Rc5+ Be4 Rf8 h8N g2+ Kh2 g1R h7 Rg8 Ng6 Rg4 h8Q Rh4+ Kg2 Re8 Ngf4 Rf8 Bc3 Rb2 Qbd3 Rb6 Nb2 Rc4 Be5 Re8 Qd5 Rc5 Bh7 Rc3 Rae1 a1Q Rc1 Qa5 Ra1 Rg8 Qf3 Qb5 Bd4 Qe5 Ra3 Rf8 Nbd1 Rc4 Ba1 Re8 Nb2 Rc5 Nf6 Nd5 Be7 Rd8 Qh3 Rc4 Qf8 Rc3 Kh1 Rc4 Rd1 f1B Qf7 Be2 Rf1 Bd1 N6h5+ Kh6 Ne2 Rc3 Rf6+ Kg5 Qf8 Ba8 Nef4 Rc7 Qe8 Bb7 Qb5 Ba8 Qbd3 Bc6 Qf5+
2n3Q1/N3RRq1/2KP1qPN/N1n5/1Q2NrRb/k3r3/b3BBB1/Bq4bb b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 d4+ Kb4 g4 h5 f4 c5 b6 e5 g6 a5 g5 a4 g7 h4 d6 h3 Kd5 e4 d7 c4 f6 h2 b7 a3 f7 a2 g6 c3 f5 c2 f6 e3 Nc3 e2 Bg2 e1Q Ne4 Rh7 Ne2 Nc6 b8B Qc7 d8N Bd7 Ba7 Ka4 b4 Qb7 b5 Nh6 g8B Ng4 b6 Bh6 f8R Kb3 f7 Bf4 Bb2 Bh6 Nc1+ Kb4 Qd2+ Ka4 Rg1 h1B Nb3 c1B Na5 Nge5 Kd6 Bg4 d5 Be6 Bd4 Qa6 b7 Nd3 b8N Ne7+ Nbc6 Be3 Bc3 Bg5 Bf2 Bh4 Kc7 Rg7 Na7 Ka3 d6 Nc8 Re8 Nc5 Re7 Qaf1 f8Q Rf7 Kc6 Rf4 Nf7 Rb8 Bcd4 Rb3 Nh6 Re3 Bf6 Bb3 Bc4 Qd1 Rb1 a1Q Qg8 Ba2 Be2 Qde1 Bh8 Qg7 Rbb7 Bb2 Rf7 Qb1 Rbe7 Bbf6 Bgf3 Ba1 Rg4 Bd4 Bg2 Rg3 Be1 Bg1 Bf2 Re3 Qe1 Qf8 Ba1 Qg7 Re8 Qbb2 Ree7 Qbf6 Qd2 Qb1 Qb4+
3q4/Kn5q/2P1Q1k1/R1QNbRrR/n3BQ2/3r1B1N/r3PnbB/R3Q1r1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 d5 Ke3 g5 Kd4 a5 h4 f5 c4 Kf7 b4 a4 b6 g4 e6+ Kf6 e7 g3 e8Q a3 c6 g2 c7 f4 c5 a2 b7 f3 h6 f2 h7 Nh6 c6 Ra3 b5 Bh3 c8B Ra7 b6 Bb4 h5 Ra5 Qe6+ Kg7 Qe1 Ng8 Nc3 Ne7 Bf4 Re8 h8R Na6 b8R Bd6 b7 Nc5 Rf8 Na4 h6+ Kh7 Bd7 Nc8 Ra8 Bb8 Be5 Nd6 Rf5 Bc7 b8Q Nb7 Bh2 Be5+ Ke3 Rb5 Ra5 d4+ Ke4 d3 Nd5 d2 Qc7 Bg4 Nh3 g1R Bg2 f1Q Bf3 d1N Kd3 Re7 Kc4 Nf2 Qb6 Rb3 Qc5 Rd3 Kb5 Rg7 Ka6 Rg5 Ka7 Qg2 Be4 Bf3 Be8 Qg4 Bh5 Qh4 Bg4 Bg2 Bgf3 Kh8 h7 Kg7 Nf6 Kh6 h8Q+ Kg6 Qhf8 Qh7 Qfd6 Bd4 Qf4 Be5 Rc1 a1R Nd5+ Qf6 Rb1 Ra2 Ra1 Rb3 Bg3 Rh5 Ng5 Rc3 Rh4 Rd3 Nh3 Rg5 Rh5 Bf1 Qc8 Qd8 Bh2 Bg2 Qe6+
1r2NbK1/2Q2N1r/2P1B1b1/P4Q1R/RrBn2q1/B1Q1n1B1/R4nk1/1n1R1q2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 b5 Kd5 e5 c4 g5 f4 e4 a4 g4 h4 d6 h6 e3 h7 g3 a6 e2 h5 e1N h6 g2 a7 b4 c6 b3 c7 b2 c5 Nf3 c6 Be7 Na3 b1R Ra2 Rb4 Nc4 Nd2 Nh3 g1Q Ng5 Nb3 Ba3 Qh2 Nf7 Ba6 c8B Qe2 Be6 Qf8 Qc1 Qc8 Qc3+ Nd4 a5 Qe1 Be2 Qc1 Rd1 Nd7 Bf1 Rab8 a8Q Qb1 Qb7 Nc5 Qc7 Ne4 Be2 Qd7 Bf1 Bf8 Be2 Nf2 Bd3 Ke7 f6+ Ke8 f5 Bb5 Rdd2 Qf1 Rd1 Qc8 Ne3 Ba4 Bc4 Bc2 Ng4 Bb1 Nd8 Qd7 f7+ Ke7 Nf6 Bc2 Ne8 Bb1 Ng7 Kf6 Ne8+ Kg5 f6 Kh4 Bd3 Bg7 f8B Kg3 f7 Kg2 Bc4 Bg6 Be7 Qc8 f8Q Qd7 Qf4 Bf8 Bh4 Qg7 Bg3 Qd7 Bf7 Qg4 Qg5 Ne2 Qf5 Ne7+ Ke6 d5 Kf6 d4 Bfe6 d3 Nf7 d2 Ne5 Rg8 h8R Rg7 h7 Nd4 Nf7 Nd5+ Ke5 Ne3 Kf6 R8b5 Rg8 Rb7 h8R Rb8 Rh4 Rh7 Rh8 Rg7 R8h5 Rh7 Rc1 d1N Rb1 Nec2 Rc1 Nde3 Rd1 Nf3 Ne5 Ncd4 Nf7 Bh6 Ke7 Nd2 Kf6 Nb1 Ke7 Bf4 Kf8 Bd6+ Kg8 Qge2 Re4 Qg4 Re5 Bf8 Rb5 Rb2 Rb4 Rb3 Ra4 R3b5 Bc8 Rb4 B8e6
1B3r1b/2NB2qQ/1BPR3P/3rnr1n/NR6/R4k2/1N1Qr2q/NK3nRb b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 b4 Kf6 f4 g5 c4 d5 Kc2 a5 h4 e5 h6 e4 h5 g4 c6 a4 b6 a3 b7 g3 c7 e3 c5 e2 b5 e1R h7 d4 h6 g2 b6 a2 c6 Re6 Qd2 Re3 Na3 Qd5 Nf3 g1R Ne1 Nd7 b8B Re2 b7 Rf2 Bh3 Rh2 Nd3 Bg7 Nb2 Rgg2 Rg1 Ne5 Bg4 Bd7 c8N Ra5 Nb6 Qd6 N6a4 Rf2 Bh3 Be6 Bg4 Kf7 f6 Kg6 f7 Bd5 f8R Bh1 Bd7+ Kh5 f5 Nf6 Rd8 Rf8 h8Q Rd5 Qg8 Kh4 Qh7 Nh5 f6 Bh8 f7 Rf4 Bf5 Qc7 Rd6 Re2 Bc8 Rf5 Bd7 Re8 f8N d3+ Kc3 Rd8 Ne6 Rdf8 Nc2 Kh3 Re1 Kg3 Rg1+ Kf3 Kb3 Qd8 Nc7 Qh4 Qc3 Re1 Be3 Qh2 Bb6 Re2 Qb4 d2 Ka3 d1N Qd2 Ng7 Bd4 Nd3 Bba7 Ne1 b8R R5f6 Nc4 Nh5 Rb4 Ne3 Kb2 Rff5 Bb8 Nf1 Kc1 Rg8 Bb6 Rgf8 Rab1 a1Q Rb3+ Ne3 Ra3 Qg7 Rb4 Nd3+ Kb1 Nf1 Ncb2 Rd4 Nc3 Rdd5 Na1 Ne5 Nca4+
5Bqq/nk1B1B2/1P2N1Q1/3Qbbr1/3b3N/1nr1NRP1/BQ2nRN1/4K1b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 d4 a5 e4 c5 e6+ Kc7 d6+ Kb7 b6 h5 e7 f5 e8Q f4 d5 a4 d7 h4 g3 f3 d6 c4 e5 h3 g6 h2 g7 c3 e6 a3 b5 c2 e7 a2 Ba3 c1B Qg6 Bg5 e8B Bc1 Nd2 Qc7 Bc4 Rh5 Nf1 Nh6 g8B Be3 Bgf7 Bd4 Ne3 Nc6 Bcd5 Rg5 d8N+ Kb8 d7 Nf5 b7 Na7 Bb3 Qc4 Ne6 Bfc5 d8N Bb6 Rb1 a1B Bd7 Bab2 Ba2 f2+ Kd2 f1N+ Ke1 Ba1 Nf3 Nd2 Rb2 Nb3 Rf1 h1Q Nf4 Qh8 Nde6 Be5 Re2 Nfd4 Ref2 Ne2 Qd5 Bad4 Bf8 Bbc5 Nfg2 Bb6 Bde8 Bd7 Nfh4 Qc8 Ng7 Bf5 Bd7 Kc7 Rf3 Qe8 R1f2 Rc8 Ba3 Qeg8 b8Q+ Kd8 Qbb7 Rc3 Bf8 Bbc5 Qbc6 Bb6 Qcf6+ Kc7 Ne6+ Kb8 Bde8 Bbc5 b6 Kc8 Bd7+ Kb8 Qd6+ Kb7 Qd5+ Ka6 Qe7 Nbc1 Nc4 Be3 Rf1 Bcd4 Qb4 Bg1 Qb2 Nb3 R1f2 Qh6 Qb5+ Kb7 Nce3 Qhh8 Qd5+
n7/B2Bnb1P/5r2/QrrB1q1N/q1N4R/1NbnQ1PR/1Bk3KQ/N3r3 b - - 0 1 illegal: No possible last move
1rn1qQ2/qnQ1R1P1/1n1Bk3/3r4/b1Q2b1P/NRnRN2K/BB1q4/1R2B3 b - - 0 1 illegal: No proof kernel
1k1Q1B2/6PN/2nR1QN1/1r1N2qB/RNKbQP2/3Qqn1q/2b4r/B2r3q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 a5 b4 e5 g4 h5 f4 c5 g6 Kc7 f6 h4 b6+ Kb7 f7 h3 d6 a4 d7 a3 g5 h2 b5 a2 g7 e4+ Kc4 e3 d4 e2 g6 e1R d5 Rh3 d6 Re7 Bb2 Rh8 Qd3 Rh3 Nc3 Rhe3 Nd5 Ra3 Be2 R3e5 Nf3 Nf6 g8N Bg7 f8B Nh7 Nh4 Ng5 Bh5 Nf3 Rhd1 h1Q Ngf6 Qh3 Nh7 Nc6 Qe4 Kb8 b7 Qa5 d8Q Rd3 d7 Rf5 Bc3 Bd4 g7 Re6 Qe7 Rh6 Ng6 Rg5 d8N Bf5 Qf6 Rd2 Ne6 Rh2 Nb4 Rg1 Rd3 Rd1 Nc7 Rb2 Ncd5 Qd8 Rb1 a1Q Rd2 Qa3 Ra1 Rbb1 Bb2 Qe3 Ra4 Qe7 Ba1 Rb2 Qee6 Bc2 Qe4 Qe5 Rd3 Qg5 Nb6 Bc3 Rd6 Bd4 N6d5 Qhg3 Bg4 Rh2 Bh5 Qh3 Qd3 Rdd2 Re6 Na7 Na2 Bb1 Ndc3 Kc7 b6+ Kd7 Qe4 Nc6 b8Q Rd3 Nd5 Rdd2 b7 Rb3 Qa7 Rb5 Rb4 Bd3+ Kb3 c4+ Ka4 c3 Kb3 c2 Qa3 c1Q b8Q Bc2+ Kc4 Rd3 Ra4 Qh1 Nab4 Rd1 Qb6 Kc8 Rd6 Qhg4 Qad3 Qh3 Qa5 Kb8 Qad8+
qr1R4/2BR2PB/1bq4N/PkrN1rr1/2q2B1Q/K3B1Qb/4Nn1n/3R2R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kd7 g4 h5 a4 b5 d4 e5 Kd2 c5 Kc3 b4+ Kb3 e4 a6 e3 a5 e2 f6 e1R d6 Kc6 f5 h4 f7 h3 g6 h2 f6 Re5 d7 Qc7 d8R Rh3+ Qf3+ Rd5 g5 Be7 f8R Rg3 g7 Bb7 g6 Nh6 g8N Bc8 f7 Bh3 a7 Rg5 g7 Na6 Be3 Rb8 Nc3 Ng4 Rd7 Bd8 Qg3 Rdf5 Nd5 c4+ Ka2 c3 a8Q+ Qb7 Bd3 b3+ Ka3 c2 Nh6 c1R Ne2 b2 Rd1 Bb6 Rfd8 h1Q f8B b1Q Bd6 Nc5 Bdf4 Nh2 Qa6 Qc8 Qc4 Qb5 Rg1 Rc2 Rad1 Qc7 Qb4 Ne4 Qbe1 Nf2 Be4 Re5 Bh7 Qc4 Qb4 Rgf5 Qe7 Kb5 Qeh4 Ne4 Nf6 Qc8 d5 Nf2 d6 Qa8 Nd5 Qc8c6 Rg8 Rg5 Rc7 Ref5 d7 Rc1 d8B Qe4 Rd7 Rc5 Bdc7 Qc4 Rgd8
2r1Rq1N/1Q3PR1/7Q/NR1BB2K/q1bnB3/4NB1k/Pbr1q1n1/3n1n1N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 c5 Kg4 e5 f4 b5 d4 c4 a6 c3 f6 h6 f5 e4 f7 e3 f6 e2 a7 e1N d6 Ke6 g6 b4 d5+ Ke5+ d7 b3 d6 c2 g7 b2 Rh5+ Ke6 Be2 Be7 f8Q Bb7 Rb5 Be4 Bf3 Bh7 Nh3 Bd3 Kh5 Bc4 g4 Nc6 g5 Nd4 g6 Rc8 a8B Ng2 Na3 b1N Nf2 Nd2 Bae4 Nf1 Bb2 c1Q Qb3 Qd1 Nh1 Qe2 Nc2 Qa5 d8R Qa4 d7 Ba3 Ne3 Ne7 g8N Nd5 g7 Nc3 Ne7 Nd1 Nc6 Rh7 Bc3 Bb2 Na5 Rh8 Rc1 Rh7 g8B+ Rf7 Kg6 h5 Qh6 h4 Kh5 h3 Rf8 h2 d8N+ Kd6 Rc2 Rfc7 Bgd5 Ke5 Rg8 Rc6 Rg5+ Kf4 Nf7 R6c7 Nh8 Rc5 f7 R5c6 Nf2 Rc5 Re5+ Kg3 Nh1+ Kh3 Re8 R5c6 Qb4 R6c7 Qe7 Rc6 Qb7 Rc5 Ng3 h1Q Rc1 Qh2 Nh1 Qd6 Rb1 Qf8 Rc1 Nc6 Be5 Nd4 Rc2 Bb3 Rd2 Rc2 Rd3 Bc4 Rc3 Bd3 Rc6 Bc4 Rg6 Qb3 Rg8 Qa4 Rg7
1KR1Rq2/3RnP1r/1N1n1QNr/1N6/1qB2Qr1/1bb2QQP/1kn3RB/r7 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 f4 c5 d4 g5 d6 a5 h6 c4 f6 g4 d5 g3 f7 c3 h7 e6 b6 c2 d7 Kb3 h3 a4 d6 g2 f5 a3 b7 a2 f6 Ra7 Rh2 Ra4 Nf3 g1N Nc3 Rc4 Nd5 Qa5 d8Q Rc7 d7 Qa8 Nd4+ Ka4 b4 Bg7 Kd6 e5 f8Q e4 b5 e3 b6 e2 Rg2 e1Q Qf3 Nh6 Bf4 c1R Bh2 R1c4 Nb5 Rg4 Bc4 Ne2 Rc1 Nc6 b8Q a1R b7 Ne7 Nb6+ Kb4 Rd1 Nd4 f7 Nc2 Qg8 Bc3 Qg5 Rc5 Qgf4 Rh5 Kc7 Nhf5 Rd4 Rh6 Re4 Rhg8 h8N R8g7 Ng6 Nd6 Qh8 Qd2 d8R Rgh7 Qhf6 Be6 Rd7 Qe1 Qg8 Qf8 b8R Bd5 Rc8 Qd2 Nd4 Ka3 Kb8 Kb2 Nb5 Qd4 Ree2 Qc5 Re5 Qb4 Qgg7 Nef5 Ree8 Ne7 Qh4 Be6 Qhg3 Bd5 Qgf6 Be6 Be2 Bb3 Bc4
4RN1K/rQBB1P1n/1n3N2/2P4B/3QR2q/1qr1r3/1RbBQ1n1/n2Q2bk b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 c4 g5 f4 a5 b4 a4 h4 a3 b6 a2 h6 e6 c6 g4 h7 g3 h5 g2 c7 Ne7 b5 Bg7 c5 Rf8 h8R Ra5 b7 Ng8 h6 Ra3 h7 Re3 b6 Rb3 Be2 Rh3 Nf3 g1R Nh4 Ne7 Ng6 Rf7 Nd2 Rc3 Nf8 Re1 Rh4 Ng6 Bh5 Ree3 Rb1 a1N Rb2 Nd7 b8B Bh6 b7 Nb6 Qe2 Bd7 c8B Ba4 Bd7 Bc2 Bd6 Bg5 b8Q Rg7 Ba4 Ra7 Bc7 Qe7 Rg4 Bh4 Be8 Bf2 Qb7 Bg1 Bd7 Ne5 Bde8 Nf7 Bd7 Ng5 Ne4+ Kg7 Ke5 Kh6 f6 d4 f5 d3 f7 d2 f6 d1Q Kf4 e5+ Kf5 Qd5 Rg8 Qb3 h8Q+ Nh7 Bd2 Qd8 Ne6 Qe7 Re8 Qd8 Rg7 Qe7 f8Q Qd8 f7 Qe7 Bf3 Qh4 Rg4+ Kh5 Qd6 Bb1 Qdd3 Bc2 N4g5 e4 Nf8 Qg3 Rf4+ Qg4+ Ke5 Kh4 Qd1 Kg3 Q3e2 Qh4 Bh5 Bf2 Kf5 Kh2 Kg6 Kg2 Kg7 Kh2 Qc4 Bg1 Qce2+ Kh1 Rg4 Rf3 Rf4 e3 Ne4 Rh3 Nf6+ Rf3 Qd3 e2 Rfe4 e1N Q3e2 Ng2 Kg8 Rfd3 Qg7 Re3 Kh8 Ne1 Qgg4 Ng2 Qf4 Rf3 Qe5 Rfe3 Qd4
R5rb/3r1PNq/R4KR1/Pb1BB2B/q1N3QQ/1nnQ3R/1k3B1q/bb6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 c5 a4 b5 d4 g5 f4 c4 a6 g4 f6 e6 a7 g3 h6 g2 f7 c3 h5 c2 h7 Kb3 f5 b4 f6 Qe7 h6 Bb7 d6 Ba6 d7 Qe8 d8Q Be7 f8R Bd3 f7 Ba6 d5 Bb5 d6 Nf6 d7 Na6 Na3 Nd5 Be2 Nc5 Be3 Kb2 Rh3 c1Q Bf2 b3 Rg8 Nc3 Bh5 Qb1 Rg6 Rg8 Nf3 g1Q h8B Qc2 h7 Qh2+ Bg3 Bd6+ Kf6 e5 Nh4 e4 Nf5 e3 Bf2 e2 Ng7 e1B Qg4 Bf4 Qe7 Rd8 a8B Qe4 Bd5 Be5+ Kg5 Qeh1 Kf5 Bd2 Qeg5 Be3 Q5h4 B3d4 Kg5 Rb8 d8Q Rb7 Qdd7 Qa8 Qdf5 Rd7 Qd3 Qa5 Re1 Qb4 a5 Qa4 Kf5 Ka2 Nc4 b2 Rg1 b1B Ra6 Nb3 Rg2 Ne4 Kg6 Ba1 Rgg3 Nc3 Rg1 Bb8 Kf6 Qe4 Rgg3 Be5+ Ke6 Qd4 Ne8 Nd2 Qgf3 Rg5 Bf6 Rg4 h8R Qe4 Rf8 Qh7 Rg2 Rg8 Rg6 Bd4 Qfg4 Nb3 Bg7 Bb6 Bf6 Bd8 Be5 Bf6 Kf5 Bh8 Ng7 Nd2 Kf6 Nb3 Nd6 Ka3 Rfa8 Kb2 Nc4+
1r5R/3rPN2/q3Q1bQ/1bBRR1K1/2NR4/bPQ1rNN1/n2b2B1/qn1k4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kf4 a5 d4 c5 h4 g6 e4 c4 d6+ Ke6 h6 a4 h7 a3 d5+ Kf7 h5 c3 e6+ Kf6 b6 a2 b3 c2 d7 Bc5 b7 Nc6 b8R Qb6 d8R Qa6 h6 Ba3 e7 Nb4 d6 Ra7 Qg4 Rd7 Be3 c1B Ne2 Bd2 e8N+ Ke6 e5 Kd5 e6 Ne7 Kg5 f4 Bg1 Ke4 Bg2+ Kd3 Bc5 Kc2 Rh5 Ned5 e7 Kd1 Qe6 Nc3 Ng3 Rg8 h8Q f3+ Qe3 f2 h7 f1B Rh4 Qd3 Rd4 Qa6 Qf6 Bb5 h8Q Bb7 Qe6 Be4 Qh6 Bf5 Ng7 Be4 N7f5 Bc2 Nh4 Rh8 Kg4 g5 Nf3 Be4 Kh5 g4 Kg5 Bg6 Ra8 Bc1 Na3 Nb1 Nc4 Ba3 Rf8 Rg8 Rf5 Rh8 Re5 Rb8 Nf1 g3 Rdd5 Ra7 d7 Rab7 d8N Rd7 Bh1 g2 Ng3 g1R Nf7 Re1 Bg2 Rb6 Rh8 Rb8 Qf4 Re3 Qd4 Nd3 Qc3 Nc1 Qb4 Nc3 Rb1 a1Q Rb2 Nb1 Qc3 Na2 Rd4 Bd3 Rc2 Bdc1 Re2 Bd2 Red5 Bg6 Kh4 Rd3 Ree5 Re3 Kg5
1N1NK1Q1/B1rP1Q2/b1n4R/3PNb2/3b2bQ/1q1r3N/4qnr1/1k2RBBQ b - - 0 1 illegal: No possible last move
Q1N1n1r1/2PbBR1K/qq1Q1BB1/Q1B2N1N/n1n3k1/1Nb5/1qP4r/q3R3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 Kf6 Kf4 d5 h4 a5 b4 g6 h6 a4 c6 a3 b6 a2 b7 d4 h7 e6 b5 d3 c7 d2 h5 Bc5 b6 Bf8 h6 Qd3 Qe1 d1Q Ne2 Be7 Nd2 Bd7 Ba3 Qb5 Nd4 Bd8 Bd3 Qb4 Rf1 Qh5 Nb3 Qc4 Bc5 Ne7 Qa5 Rg8 h8N Nec6 h7 Qa6 Nf7 Ne5 Rae1 a1Q Nd6 Nc4 Nc8 g5+ Ke4 g4 h8B+ Kg5 f4+ Kh4 f6 g3 f7 g2 f8Q g1Q f5 e5 f6 Kg4 f7 Bf6 Qd6 Qhh1+ Rf3 Qb2 f8B Qh6 Nf5 Qf1 Re2 Qfa1 Be7 Qg6 Bg7 Rh8 Re1 Rh2 Bgf8 Bg7 Bf6 Qh6 B8e7 Qe3+ Kd5 e4 Rff1 Qg1 Rf3 e3 Ke4 e2 Rff1 Nc6 b8Q Nd4 b7 Ne6 Qa7 Bh8 b8N Ng7 Qb7 Ne8 Qbc6 Be6 Nd7 Rb8 Qa8 Bg7 Nf8 Bd7 Ne6 Bh8 Neg7 Qf2 Ba3 Qfb6 Nh5 Bg7 Bc5 Bh8 Bg5 Bd4 Bgf6 Bc3 Rd1 e1N Rf2 Ng2 Re1 Nge3 Rff1 Qbb1 Rf2 Nb2 Rf3 Na4 Rff1 Kh3 Kf4 Qbb2 Kg5 Nc4 Kg6 Kg4 Kh7 Bb5 Nfd4 Bc6 Bg6 Bd7 Nf5 Ng7 Na7 Rg8 Nc8 Ne8 Ne3+ Kh3 Be5 Qaa7 Rf7 Qaa6 Nf5 Kg4 B5f6
1kn5/1qPB1Q1B/1N1RNQNQ/2P5/b1Nq3r/4n1K1/1Bb5/bBqR1r1b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 a5 b4 h5 c4 d5 f4 Kd7 Kf2 Kc7 f6 e5 b6+ Kb7 b5 d4 f7 a4 g6 a3 g7 e4 g5 h4 g6 d3 f5 h3 f6 e3+ Kg3 d2 Nf3 h2 Ng5 a2 Bb2 e2 Na3 Qe7 Bh3 Ra7 c6+ Ka8 c5 Nh6 g8B Rb7 g7 Qe4 Bd7 Qd5 Bh7 Rc7 g8B Rb7 Nc4 Be7 f8Q Ng4 f7 Bf6 Qc1 d1B Ne6 Qd4 Qch6 Ba4 Bb1 Ne3 Rd1 h1B Bgh7 Rc7 b7+ Ka7 Be8 Nd7 b8N Nb6 Bd7 Ba6 Rd2 Nc8 b6+ Ka8 b7+ Ka7 Nd6 Bd3 Nc4 Bdc2 Qe7 Bg7 f8N Bf6 Ng6 e1Q+ Kh3 Qc1 Kg3 Rf8 Qf7 Bh8 Rd3 Qg7 Rd6 Qd4 Qfg7 Rf1 Qf7 Qg7 Na6 Qd4 Nb4 Kb8 Nd5 Qg7 Ndb6 Qd4 Be8 Re7 Bd7 Bg7 Nef8 Re4 Ne6 Rh4 Bc3 Qdd1 Nd5 Qa3 Bf6 Ka7 b8Q+ Ka6 Qb4 Ka7 Qb2 Qd2 Qc3 Qb2 Qd4 Qb7 Ndb6 Kb8 Be5 Bcb3 Be4 Qc3 Re1 a1Q Rd1 Qac1 Bb1 Bc2 Qdf4 Q3d2 Ba1 Bc3 Q4f6 Qd5 Bb2 Qd4 Ba3 Ba1 Bb2 Qe5+ Qff4 Qc3 Q4f6 Qd4 c7+
1kR1R3/nP4qq/2QbQ3/2R1RP2/3N4/B1QBr2b/1nq1QqnK/1r1N1N2 b - - 0 1 illegal: No possible last move, all moves rejected
2Q3n1/PK3Rqr/Qnn3Q1/Bb2r1RQ/3nP1R1/1k2q2q/4B2N/bNN4R b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 Ke4 c5 d4 b5 h4 f6 a4 b4 h6 g4 a6 c4 a5 g3 h5 b3 h7 c3 e6+ Kd6 e7 g2 e8N+ Ke7 h6 b2 d6+ Ke6 a7 c2 a6 Nd7 d5+ Kf7 Ra4 Qc7 Bd2 c1N Qc2 Nb6 d7 Qd6 d8R Qc7 d6 Ke6 d7 Nd3 Ba5 Nb4 e3 Bc5 Ne2 g1N Nc1 Nf3 Be2 Nd4 Rh5 Rb8 a8Q Nbc6 Rg5 Ba3 a7 Ba6 Qb7 Bb5 Qa6 Bd6 Rc8 Be5 d8Q Qg7 Rc7 Rb7 Rf7 Re7 Nd6 Re8 Nc4 Re7 Ncd2 Re8 Na3 b1Q Nf1 Qb3 Qdc8+ Kd6 Qd3 Kc5 Nb1 Re6 Nh2 Re7 Qd1 Qe6 Qg1 Re8 Ra3 Qe7 Rd3 Kc4 Qgg4 Qc5 Qgf5 Qe7 Qg6 Nb3 Qd7 Nb8 Ng4 Qc5 Qdc8 f5+ Kf3 f4 Ke4 Rd8 Rd1+ Rd3 Rg1 f3 Rh1 f2 Nh2 f1Q Rg4 Ba1 Rg5 Ne7 Rg4 Re8 h8Q Ng8+ Re7 Qb2 h7 Qh3 Qe5 Qc3 h8R Qb2 Rh5 Qc3 Bd1 Rd7 Qh8 Qc7 Rhg5 Nd4 Qhh5 Qe1 Nd3 Qf2 Be2 Kb3 Nc1+ Kb2 Ree5 Rh7 Re7 Qb7+ Ke5 Qff3 Kd6 Nbc6 e4 Qe3 Rc7 Re5 Rg7 Qa8 Kc7 Kc2 Qcb7 Qf8 Rf7 Qg7 Qc8 Kb2 Kb7 Kc2 Na2 Kb3 Nc1+
Q1Bb2Bn/B7/5N2/brq1Pb1n/NR1bQN2/2Nrb3/2R3P1/KbkBR3 b - - 0 1 illegal: No proof kernel
RN1QK1b1/1br1nn2/1NQ2b1P/3R2q1/b1R4r/Rb2Q1kP/4B3/Q2B1bB1 b - - 0 1 illegal: No proof kernel
5n2/1PrQ1BRN/rB1q2n1/4rQ1b/k2R2NP/1r1rQK2/1br2B2/2R2RQ1 b - - 0 1 illegal: No possible last move
NqQ1BbR1/1P2rQB1/R1nr4/1Q1RP1K1/nrr1b1Q1/2N2r2/1k3R1N/3r4 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 Kf4 f5 b4 a5 e4 g6 d4 a4 h4 a3 d6+ Ke6 h6 a2 d5+ Kf7 b6 c4 h7 c3 d7 c2 d6 Ke6 b5 Qc7 d8R Nc6 h5 Qb7 d7 Bg7 h6 Nf6 Nf3 Ra4 Bb2 c1R Rh2 Rcc4 Rf2 Qb8 b7 Bf8 b6 Nd5+ Kg5 f4 Nc3 Rab4 Nh2 f3 Qa4 Rg8 h8R Rg7 h7 Rf7 Rg8 Re7 Rd1 a1R h8Q Rc1 Qh7 Rb1 Rd3 Rd1 Re8 Rd2 d8Q Bd7 Qc8 Rd1 Nb1 Nc3 Rd5 Rd2 Qd1 Na4 Nc3 Rdd4 Rd8 Rd3 Ra5 Rdd4 Ra6 Rd6 Re2 f2 Qd4 Qa8 b8Q Qa7 Bg2 f1R Rf2 Qc7 Qbb7 Qb8 Bf3 Rd1 Bh5 Rd3 Qg7 Rf3 Qc5 Rff7 Qb5 Rf3 Kg4 g5 Be8 Rh3 Qbc7 Rf3 Kh5 g4 b7 g3 Kg5 g2 Qg6+ Rf6 Qh5 Rf3 Qh4 g1R+ Qg3 Rh7 Qg4+ Ke7 e6 Rgd1 Kg6 Rg7+ Kh5 Kf6 e7 Rf7 Ba1 Bf5 Rd7 Ke6 Kg5 R6d5 Rd6+ Ke5 Q7d7 Kd4 Qe6 Rh7 Qf7 Kd3 Bb2 Rd4 Rd5 Bg6 Bd7 Bf5 e8N Bg6 Nc7 Bf5 Rc5 Rd6 Be8 Bg6 Na8 Kd4 e5+ Be4 Bc1 Kd3 Bd2 Kc2 Rd5 Rg7+ Kh4 Kb3 Bh6 Rh7 Kg5 Ka3 Qg6 Re7 Qf7 Kb3 Bg7 Ka3 Ne2 Kb2 Nc3+
7Q/P3n1P1/1q1B1bBR/rn1rbN2/1bb2RRQ/5NQK/5RQ1/1k1bN2b b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 c5 f4 e5 Kf2 h5 Kg3 b5 a6 c4 a5 e4 g6+ Kf6 a7 e3 g7 b4 a6 e2 d6 e1B+ Kh3 b3 g4 h4 d7 c3 g5+ Ke7 d5 Kd6 g6 Kc5 d6 Kb4 f6 b2 f7 c2 f5 Kb3 f6 Rh7 Qd3+ Bc3 Nf3 Qa5 Nbd2+ Kb4 Ra4+ Kc5 Ne1 b1B Rg4 Nc6 d8Q Rh5 d7 Nd4 Qg3 Kb4 Bd3 Qb6 Ndf3 Kb3 Ba3 Ka2 Bd6 Ne7 g8N c1B g7 Bf4 Bg6 Bc2 Nh6 Bd1 Nf5 Nb5 Qe8 Kb2 d8Q Be6 Qc6 Bce5 Qc2+ Ka1 Qcg2 Kb1 Rh2 Bc4 Rh1 Rc8 a8Q Rc5 a7 Rd5 Qac8 Bg5 Qb8 Ng8 Rh2 Be7 f8R Bd2 f7 Bb4 Qa8 B7f6 Qab8 Ne7 Rh8 Qg1 Rh6 Qe3 Qh8 Qb6 f8R Rg5 Qf1 Rh5 Rf2 Rg5 Qfg2 Rh5 Kh2 h3 Qf4 Rg5 Kg3 h2 Kh3 h1B Qfg3 Ba1 Qh4 Bae5 Qc7 Bd3 Qc3 Bc4 Qe3 Rh5 Qf4 Rg5 Qfg3 Bf4 Be8 Ba1 Rg8 Re5 Ne3 Nc3 Re6 Ra5 Rf8 Nb5 Rh6 Rd5 Rff6 Bg5 Rff4 Bgf6 Nf5 Bae5 Bg6
R1R1BB1K/B1b1PR1Q/q1r3QN/7P/Q1n3R1/nbNnnk2/2B5/1rb1b3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 e4 f6 Kg6 c4 d4 f5 b4 c3 h4 f4 e6+ Kd6 e5+ Kc7 d6+ Kb6 e7 c2 e8B a4 d5 a3 h6 g4 d7 a2 e6 g3 h7 f3 h5 g2 e7 f2 d6 Nh6 Nc3 Na6 Nge2 g1N Nd4 Ng4 Bd3 f1N Rh4 Nge3 Rg4 Nc5 Nf5 Nf3 Nh6 Nc4 Bf4 c1B Qa4 Bg7 Bc2 Rg8 h8Q Ne1 Kh7 Nfe3 Be5 Kb7 b6 Ra6 b5 Ncd3 Rb1 Qc7 d8R a1B d7 Qd6 Bf4 Be5 Rb3 Kb8 b7 Kc7 b8R Rc6 Ra8 Qe6 b6+ Kd6 b7 Rg6 Bd1 N1c2 b8B+ Kc5 Ra3 Kd4 Ba7+ Rb6 Ra2 Na3 Bc2 Rf6 Kg7 Bc7 Qh7 Bb7 Qg6 Bd5 Rdc8 Qc6 d8Q Qb7 Rcb8 Rc6 Kh8 Qa6 Rc8 Bab2 Qh7 Bd2 Qd7 Be1 Qe6 Bc1 Qeg6 Bf7 Rb2 Bd5 Rb5 Bf7 Rf5 Bg8 Nb5+ Ke4 Rf7+ Kf3 Nc3 Rb1 Nf5 Nce5 Bh6 N5c4 Bf8 Ncb2 Rg7 Bb3 Nh6 Nbc4 Rf7+
1K1b1B2/NQ2Q1p1/1Bb1N1n1/5R1Q/1R3n1P/BRn1PQ2/6q1/r2rkBbr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 f5 Kd4 a5 Kc5 c6 b4 f4 h4 f3 d4 a4 e3 f2 b6 a3 h6 a2 h7 Ra3 b5 Qc7 e6 Kf6+ e7 Kf5 b7 Ke4 b6 Qh2 d6 Qg3 e8Q+ Be7 d5 Qe5 Nh3 Bd8 d7 Nf6 Nf4 Nh5 Ne6 Qg3 d6 Nf4 Qe7 Qg2 Rg1 Re8 h8Q Rd3 Qdh5 Rd1 Ba3 Rg8 Qhf7 Kf3 Nc3 Kg3 Rb1 a1B Nb5 Be5 Na7 Rf8 Be2 f1R Qhh5 Kf2 Rb3 Ke1 Qf3 Ra1 Q7h5 Rf7 Rh1 Rf6 Rh3 Rh1 Bf1 Rf5 Rg3 Rd1 Rg5 Ra1 Kb4 c5+ Ka5 Nc6+ Ka6 c4 Rb4 Rf8 Rf5 c3 Rb3 c2 Rb4 Bc7 d8B Bd7 b8Q c1N Kb7 Na2 Qa8 Be8 d7 Nc3 Kc8 Bed6 b7 Ne5 b8R Neg6 Qab7 Ba5 Bc7 Be5 d8B Bc6 Bb6 Rf7 Qd6 Rd7 Qe7 Rdd1 Bc5 Bd6 Bdb6 Bc7 Rb3 Bd8 Qe8 Bb4 Bf8 Bd6 Rb4 Nfe2 Qee7 Bh2 Rb3 Nef4 Qbc7 Rd4 Ba5 Be8 R8b4 Bg1 Bb6 Rdd1 Qcb7 Bc6 Kb8
N2b4/1B3Pk1/b1rNBp1Q/n3rqn1/1B2N3/KnQ3Qr/2PR4/1R1bN2B b - - 0 1 illegal: No proof kernel
R2B4/1NPK2br/B1Bpn2P/1n2r1k1/qR1Q2b1/2Bn3Q/1rb3R1/N1N2R2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 a5 Kf4 f5 c4 a4 b4 a3 h4 a2 e4 g6 c6 Ke6 c5 Ra6 b6 Rh6 b7 Qf6 c7 Ke7 c6 Kf7 e6+ Kg7 e7 Ra5 e8N+ Kf7 e5 Qd6 b5 Qd3 b6 Ke6 Ne2 Rb5 Nd2 Na6 b8R Bg7 b7 Qc2 Nb3 Nb4 Rh2 Nf6 Qd4 Rh7 h6 Ne4 h5 Nc5 Nd6 Nbd3+ Kg5 f4 Ra8 f3 b8R f2 Rg2 Ke7 Nb7 d6 e6 Ra5 Kg4 g5 Kf5 g4 Bb2 g3 Nec1 Qc4 Bc3 Qa4 Be2 Bd7 c8Q f1B c7 Rb5 Rb1 a1N Qh8 Nc2 Na1 Na3 Qc8 Rh8 h7 Rb2 h6 Re8 h8B Nb5 Bd1 Be2 Bb3 Bd1 Bc4 Na3 Ba6 Nb5 Ne2 Bc2 Rf1 Na7 Nc1 Nb5 Rgf2 g2 Rd2 g1R Rg2 Bf8 Be5 Bg7 Bf6+ Kf8 Be7+ Kg8 Bd8 Kh7 Kg5 Rh8 e7 Bg4 e8B Rh1 Qd7 Rh3 Qc8 Re3 Bc6 Re5+ Qf5+ Kg8 Kg6 Ne6 Qh5 Rh7 Qh3 Bf8 Kf6 Bg7+ Ke7 Kh8 Re1 Kg8 Kd7 Kf7 Rf1+ Kg6 Nc5 Na7 Rb4 Nb5 Rfg1 Kf5 Nb7 Kg6 Rh1 Kf5 Rf1+ Kg6 Ke7 Kg5 Kd7+
1nn5/P2RBnQ1/Bbk1PQ2/Q3BKNQ/1rR1R2r/2p3br/R5q1/2N4b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 Ke4 c5 d4 b5 h4 f6 a4 b4 h6 g4 a6 c4 a5 g3 h5 b3 h7 c3 e6+ Kd6 e7 b2 e8R g2 h6 Nd7 a7 Ne7 a6 Nc6 Nf3 g1B Ng5 Be7 Rh4 Ncb8 Ra2 Rg8 h8Q Rg6 h7 Rg8 Bf4+ Ne5 Nd2 b1R Nb3 Rc1 Qg7 Bb7 h8Q Rb1 Nc1 Rb4 Kf5 Qc7 e4 Qc6 Qhh5 Rh8 Qdf3 Bd8 Bg3 Bc7 Rf4 Nf7 e5+ Kd7 d6 Rh6 d5 Bgb6 Rc4 Rh7 Kg6 f5 Qf2 f4 Kf5 f3 Re6 Kc8 d7+ Kd8 Qd4 f2 Re7 Bd6 e6 Kc7 Qdf6 Be5 d8B+ Kd6 Bd3 f1N Re4 Nd2 Rd7+ Kc5 d6 Nc4 Be7 Kd5 Bh2 Bg3 Rc7 Rh6 d7 Rh7 d8R+ Ncd6+ Kg4 Rh6 Rdd7 Kc5 Bd8 Nc8 Kf5 Be1 Be5 Bg3 Qd1 Rh4 Qh5 Ba5 Be7+ Kb6 Rf4 Qg2 Rcc4 Kb5 Be2 Bb6 Rg4 Qg1 Bd3 Bh1 Rge4 Qg2 Be2 Nc6 Bf1 Rb8 a8Q Rb7 a7 Nb8 Be2 Rc7 Qb7 Rc5 Qa6+ Kc6 Qa5 Rh3 Rcd4 Rd5 Ba6 Rd6 Rdd2 Rdd4 Ra4 Rdc4 Rda2 Rd4 Ree2 Rdh4 Re4 Rb2 Rad4 Rb4 Rc4+
1BR5/R3Q1nk/1Q5r/BN1qNR2/2r1Q1P1/p1P5/2nnB2b/1QqbbB1K b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 b4 Kf7 f4 Kg7 Kf2 a5 g4 e5 Kg2 h5 g6 d5 c6 e4 b6 e3 c7 e2 b7 e1B b5 a4 f6+ Kh6 b6 h4 g7 d4 f7 d3 f5+ d2 f6 Nc6 b8B Ra5 b7 Nd4 Na3 Rc5 Nf3 Ne6 Ne5 Bd7 c8R Bd6 f8Q Rc4 f7 Kh7 Qe7 Nf6 f8Q Ne4 Nb5 h3+ Kg1 Qa5 Qff3 h2+ Kg2 Bc7 c3 Be8 Ba3 Bg6 Qb1 d1N Ra2 Nd2 Bb4 Bc2 Qf4 Qa8 Ba5 Bd6 Rg1 Ne3+ Kh1 Bc7 Rg3 Bd6 Rf3 a3 Rb2 Bc7 Rb4 Bd6 Ra4 Bc7 Qd4 Bd6 Rf5 Bd1 Qde4 Nc2 Ba7 Bc7 b8Q Qd5 g8B+ Kh6 Bb4 Ng7 Qb6+ Bd6 Be6 Kh7 Bb8 Bc7 Ra7 Bd6 Kg2 Bc7 Ba5 Bd6 Qf2 h1Q+ Kg3 Qh6 Bd7 Rc5 Kg2 Nb3 Nf7 Kg6 Nc7 Qc1 Bdb5 Rh6 Bbe2 Rc4 Qb6 Kh7 Nb5 Bh2 Ne5 Nd2 Kh1
1N5b/Q3Br2/R1Q1b1NK/3Q2n1/2B1PbkB/Pn1pnRqr/QB4q1/R7 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 b5 h4 f5 c4 d5 e4 g6 h6 d4 c6 b4 c5 b3 h5 b2 a6 Qe8 Kg5 f4 a3 f3 h7 f2 a7 Na6 c7 Bb7 c8Q+ Qd7 c6 Bb4 c7 Bc3 h6 Nb8 Rh3 Bd5 Nf3 Nc6 Nh4 Na5 Qa6+ Qc6 Rf3 Nf6 Nd2 b1Q Nc4 Raf8 a8R Nb3 Na5 Qb2 Bc4 f1N Qa7 Qd6 Nc6 Rf7 Nb8 Ne3 Qd3 Qe2 Bb2 Bd2 Qb1 d3 Qa2 Ke7 e6 Qg2+ Rg3 Bc3 c8Q+ Qc7 Qe8+ Kd6 e7 Ke5 Qd7 Be6 e8Q Qd6 Nf5 Qc7 Ne7 Bd4 Kh4 Kf4 Qd5 Be5 Rg5 Kf3 Rf5+ Bf4 Qeb5 Nd7 Qba4 g5+ Kh5 g4 Qac6 Ne5 Ng6 Kg3 Rf6 Nf3 Rf5 Ng5 Rf6 Rd8 h8B Kf3 h7 g3 Kh6 Kg4 Bg7 Rh8 Bf8 Qf2 Rh1 g2 Ra1 g1B Be7 Qg2 Rf5 Bgh2 Rf6 Be5 Rff1 Bhf4 Rf3 Re8 h8B Rd8 Bg7 Rg8 Bgf8 Bh8 Bef6 Rgg7 B8e7 Qd6 Nh4 Rh7+ Kg6 Be5 Qab7 Nh3 Ra6 Bg3 Qa7 Rh5 Bfc3 Ng5 Be1 Qe5 Nf5 Rh3 Nh4 Bf4 Kh6 Qc3 Bg3 Qe1 Bf2 Rg3 Ng6 Rh3+ Bh4 Qef2 Bd8 Qfg3 Be7
2Q1Br2/2bb1qnn/k7/NRqBN2B/1P4Qp/2r1b1NR/3P1B2/1N1n1K1Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 g4 c5 f4 Kc7 g6 Kb6 d6 h5 g5 a5 f6 e5 d7 a4 g7 h4 g6 e4 f5 e3 f7 e2 f6 a3 Rh3 c4 Bb2 a2 Bd4+ Bc5 f8Q c3 f7 c2 Bf2 Qe8 d8Q+ Ka7 b6+ Ka6 b7 c1B Qd4 Nd7 Qg4 Ne7 g8B Nf6 g7 Bb2 Bg2 Ba7 Bc6 Nf5 Qc5 Qd7 f8N Qf7 Be8 Nh7 Ng6 Bd7 Qc8 Be3 Ne5 Bbd4 Qdc1 Bb6 Q1c6 Ra7 Qh1 Bc7 b8N+ Kb5 Ng6 Ra3 Nc6 Rc3 Nge5 Kb6 Na5 Kb5 Na3+ Kb6 Rc1 a1Q Nb1 Qa4 Rc2 Qc6 Ra2 Qc5 Ra4 Qfd5 Bgf7 Rf8 g8B Ng7 Bh5 Qf3 Bd5 Qf7 Nac6 Kb5 Ra7 Kb6 Rb7+ Ka6 Na5 Bh6 Bd4 Bf4 Kf2 e1N Kf1 Nd3 Bf2 Nb2 Ne2 Be3 Ng3 Nd1 Rb5+
rQ1r4/2R1N1k1/3RBq2/4B1RR/nPq3PN/5r2/1n1BpQ1b/KBq2b1N b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 d4 e5 Kd2 c5 Kc3 a5 Kb2 h5 f4 e4 g4 a4 b6 c4 f6 e3 g6+ Ke8 f5 h4 b7 h3 f7+ Ke7 f6+ Kd7 g7 h2 d6 Ke6 d7 Bd6 f8Q Rh6 f7 Kf6 d5 Na6 b8B Rg6 Nd2 Ra7 Qe1 Qc7 d8R Nh6 g8B Ra8 Rd7 Nf5 Ndf3 Nc5 Bd2 Ba6 Nh3 c3+ Kb1 a3 Nf2 Bb5 Bd3 c2+ Ka2 c1Q Bb1 Bg3 d6 Bf1 Qc8 e2 f8N Ne3 Be6 Rg7 Ng6 Rg8 Ne7 Nd1 Qe8 Qc6 Ra7 Qc8 d7 Kg7 d8R Rh8 Qb5 Bc7 Rd4 Rd8 Rd3 Bg3 Bbf4 Qc6 Rc7 Qa6 Qb8 Qc6 Rg1 h1R Rd6 Rh3 Rh1 Qa6 Rh2 Qd3 Nh1 Qd4 Rf2 Bh2 Nh4 Qf6 Bg3 Nb2 Bgf4 Rb3 Bg3 Rc3 Rf5 Rf3 Rh5 Nca4 Qf2 Nc3+ Kb3 a2 Bd3 Qe1 Rc1 Nca4 R1c5 a1Q Rcg5+ Kf8 Be5 Qa2+ Kc2 Qd5 Bg6 Qd4 Bd3 Qc1+ Kb3 Qdc5 Ka2 Q5c3 Bb1 Qb3+ Ka1 Qbc4 Rf5 Kg7 Rfg5+
2Nnnq2/1N3bkr/2qR1RQ1/3q2r1/1p1P2PB/QN1KN3/1bQRBb2/1R6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 g4 b5 d4 c5 f4 e5 a4 h5 f6 c4 g6+ Ke8 g7 Kf7 f5 c3 a6 b4 d6 e4 a5 e3 d7 h4 a7 h3 a6 h2 Ra2 c2 Nh3 Qe8 Kd3 e2 Bg5 c1Q Nf4 e1B Bh4 Qc5 Ng2 Qce5 Rd2 Qf4 Be2 Qfe5 Ne3 Bf2 Qc2 Nh6 d8N+ Kg8 f7+ Kh7 f6 Be6 Nb7 Nf5 g8Q+ Kh6 Rg1 h1Q Rc1 Bg7 f8R Qhc6 f7 Qed5 Re1 Qec8 Rd8 Nd6 f8R Ne8 Rd6 Rh7 Qf7 Qd8 Qf5 Be5 Rf6+ Kg7 Qe4 Bf7 Qg6+ Kh8 Rc1 Bf4 Re1 Qe7 Rf1 Qf8 Rfd1 Nd7 Rh1 Rd8 a8N Nb8 a7 Rd7 Nb6 Rh5 a8Q Rg5 Qf5 Kg7 Nc8 Rc7 Rdd1 Rd7 Nd2 Rc7 Nb3 Re7 Nc4 Bc1 Ne3 Bb2 Qg6+ Kh8 Rhe1 Re6 Qa4 Qc7 Qh5+ Kg7 Rd2 Nc6 Rh6 Nd8 Qa3 Qcc6 Rb1 Rf6 Bg3 Rf3 Rhe6 Rf6 Bh4 Rh6 Rf6 Rh7 Qg6+
1b3B1K/N3qNR1/1kn1R3/QB2nb1P/4rB1n/1NqR2p1/2rP1Rq1/B2Q4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 g5 Kg4 a5 f4 e5 b4 c5 h4 Kc7 b6+ Kb7 h6 c4 Kh5 e4 Kg6 g4 f6 c3 f5 c2 b5 a4 f7 g3 h5 e3 f6 e2 d6 e1N d7 a3 h7 a2 Ne2 Qc7 d8R Qc6 Bb2 c1Q Nd4 Nh6 Nc3 Ng4 Nb3 Bh6 f8R Na6 Rd3 Qg2 f7 Be3 Kg7 Kb8 b7 Ka7 b8B+ Kb6 Bf4 Kb7 b6 Ne5 Nb5 Bf5 Na7 Re8 Rg8 Qc2 f8B Qc5 Rh2 Nb4 Bd4 Ka6 b7 Nbc6 b8Q N1f3 Qc7 Nh4 Qa5+ Kb7 Rc1 a1Q Be2 Qaa3 Ba1 Qc3 Rc2 Qd6 Ra2 Bb6 Ra4 Bc7 Re4 Bb8 Bf1 Qh1 Rf2 Qg2 Be2 Nf7+ Re5 Qe7 Bf1 Rd8 Be2 Rd4 Re6 Re4+ Rd4 Qd6 Bb5 Nfe5 Rd3 Qc7+ Kh6 Qd7 Rg7 Rg8 h8N Qe7 Rh7 Rg4 Nf7 Rc4 Rg7 Re4 Qa3 Kb6 Qb4 Rg6+ Kh7 Rg4+ Kh8 Rc4 Bg5 Rge4 Be3+ Qd4 Qa3 Rc2 Bf4 Qc3 Qa5+
2r1r3/r1n1B3/1K1NQR2/1bN2QPn/1BNQ1pP1/1qQ3b1/k2q2BB/3R3q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Ke3 a5 Kd4 h5 Kc5 f5 b4 c6 g4 h4 d4 a4 e4 a3 e6 h3 d6+ Ke8 b6 h2 e5 a2 b5 Ne7 b7 Nd5 b6 Qf6 e7 Kd7 e8N Ke6 Qc2 Rh7 Nf3 Ne7 d7 Ng6+ Nd6 Qe7 d8B Nf4 d5+ Kd7 Nd4 Qf7 Na3 Nh5 Be7 Rh8 Qc3 Rg8 Rb1 a1R Nac4 R1a7 Nb3 Bg7 Bg2 Re8 Rd1 h1Q Bd2 Na6+ Kd4 Bf8 b8B Nc7 Kc5 Ba6 b7 Bb5 Kb6 c5 Ra1 Qe6 Ra6 Qg8 Ne4 Bg7 d6 Ke6 d7 Kd5 e6 Be5 d8Q+ Bd6 Na3 c4 Nbc5 Qf1 Qc8 Bg3 Nd6+ Qf3 Qb4 c3 Nac4 c2 Qc3 c1Q Qd7 Rc8 Qd8 Ne8 Bc7 Qh8 b8Q Qd4 Be1 Qdd2 Qd7 Qc2 Qd8 Qb3 Qd7 Rd8 Qbc8 Qe4 Bb8 Nc7 Ne8+ Bd6 Qc1 Kd4 Bf3 Qbc2 Bf8 Kc3 e7 Qd5 Ka5 Ne6 Bh1 Qg2 Bc7 Qg1 Bg2 Qh1 Bb8 Bh2 Bbg3 f4 Qd6 Bg1 Bh2 Nc7 Qf5 Rac8 Qdd7 Bf2 Qdd5 Rb7 Rf6 Bg3 Ned6 Ra7+ Kb6 Kb4 e8Q Qb3 Qe3 Qdc3 Be7 Rh8 Qde6 Rhe8 Nd3+ Ka4 Qd4 Qcc2 Ba5 Qcb2 Qcc3 Qd2 Ncb2+ Ka3 Bb4+ Ka2 Nbc4 Qb1 Nc5 Qbd3 Qc1 Qb3 Qcc3
n2n4/1b2r1k1/2NK4/2B1Q1pP/1qQQq2P/2BrnN2/3R2BN/2bQ1BRq b - - 0 1 illegal: No possible last move, all moves rejected
2R2nb1/BB2k3/1N2Nrr1/1QB1P1q1/4KR2/qNP5/1bnR1b1p/1qRBQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 d5 Ke3 f5 b4 a5 g4 h5 e6 a4 c6 a3 c3 h4 e7 h3 g6 a2 g5 h2 b6 Nd7 g7 Ra7 b5 Ra8 c7 Rb8 g6 Rh3+ Nf3 Ngf6 g8R Rg3 b7 Nh5 b6 Ne5 g7 Nf4 Bg2 Qd6 Rf1 Qa3 Nd2 Ned3 Qe1 Rg6 Nd4 Nb4 N2b3 Be6 c8N Nc2+ Kf3 Rf6 e4 Ng6 e5 f4 Be3 Ra8 b8B Ra6 Rh8 Bg8 Ne6 d4 b7 d3 Ke4 d2 Rc1 d1Q Nb6 a1B Ba7 f3 b8Q+ Qd8 Bc5 f2 Bf3 Bb2 Bd1 Kf7 e8R Bd6 Rh3 Nf8 Rd3 Rg6 Rd5 Qg5 Rc8 Ke7 Rd2 Rf6 Nc4 Rc6 Qb5 Rg6 Nb6 Rf6 Rg1 f1Q Rg4 Rg6 Rf4 Rf6 Bg1 Bc5 Bd4 Bf7 Bg1 Bf2 g8B Rd6 Bh7 Bg8 Bg6 Rc6 Be8 Rd6 Bc6 Rg6 Bb7 Rc6 Nc7 Rcf6 Ne6 Qc4+ Nbd4 Qca2 Nb3 Qa1 Ra8 Qb1 Rc8 Bg3 Bd4 Bf2 Bc5+
5b2/1NrB4/2r3N1/QN1pb1Rk/1qBB1P2/3qBKnb/2n2P1Q/2NRR1r1 b - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 h5 gxh5 f5 a4 f4 axb5 f3 exf3 Nf6 f4 Ng8 Ke2 Kf7 b4 a5 h4 d5 c4 g5 h6 Kg6 b6 e5 b5 g4 b7 e4 h7 a4 c6 g3 c5 a3 c7 a2 c6 g2 b6 e3 h5+ Kh6 Na3 Ra7 Qa4 Be7 Nb5 Qf8 Kf3 e2 Be3 e1B Ne2 g1R Qa5 Na6 b8B Qf7 b7 Bd8 Nc1 Bd7 c8N Bh4 c7 Nf6 Ncd6 Qf8 c8B Bh3 Bd7 Nb4 Bc4 Ne4 Bc7 Qf5 b8R Bc3 Bcb6 Rc7 Bbd4 Nc2 Nb7 Ng3 Rg8 Be7 Rg4 Rhc8 h8N Qd3 Ng6 Bf8 Rb1 Rc6 Ra1 R8c7 Rb1 Rg2 Rd1 a1Q Re1 Qa3 Rd1 Kh7 h6 Qb4 Ra1 Rg1 Rb1 Kg8 h7+ Kf7 h8Q Ba1 Bc5 Be5 Bd4 Bf1 Qh2 Bh3 Re1 Kg7 Na2 Kh6 Rbd1 Kh5 Nc1 Rf1 Nb3 Rh1 Nc1 Rg1 Rg5+
1R1r1R1Q/qrQ2N2/3nN3/1B1p4/q4P2/2nRBbq1/PR1B3r/1Nk1bKB1 b - - 0 1 illegal: No possible last move
rk1KN2q/2Rb1q2/4B2N/n1PR1p1N/Q2BbB1R/4qR2/N2Q1r1P/3nb3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 d5 Ke3 Kd7 Kf4 Kc7 b4 a5 c4 f5 e4 g6 c6 d4 c5 a4 e6 a3 Ke5 a2 e7 g5 e8Q d3 h6 g4 h7 g3 Bf4 d2 Bc4 g2 Ne2 g1Q Nbc3 Qdg5 Be6 Ra4 Ng3 Qh6 Nh5 Qe1 Rf1 Ne7 Rf3 Ng6+ Kf6+ Bd6 e5 Na6 b6+ Kb8 b7 Qg1 c7+ Ka7 b8B+ Kb7 b5 Nb4 b6 Bd7 c8R Nc6 Rc7+ Ka8 Rc1 a1Q Na2 Na5 Rc4 Qe3 Qd8 Ra3 Qa4 d1B Rd4 Rg8 h8N Bc2 Nf7 Qh7 Rd5 Be4 Nh6 Qh8+ Kf7 Nh4 Qg5 Qad4 Qg2 Qb3 Qd2 Ng2 Be3 Qdc4 Bd4 Rg3 Nf4 Ne3 Nh5 Qc8 Kf6 Nd1 Kf7 Rg2 Kf6 Bf8 Kf7 Bg7 Ke7 Qb7 Kd8 Qcc3 Bf7 Qa7 e6 Rf2 e7 Qa1 e8N Qe3 Be6 Be5 Rc8 Bg3 Bf4+ Kb7 Rc7+ Kb8 Bh8 Qg7 b7 Qf7 Ba1 Qb6 Bh8 Qb2 Bd4 Rg2 Nd6 Be1 Ne8 Rf2 Rc6+ Ka7 b8R Qa1 Rbc8 Qb2 R8c7+ Kb8 Bh8 Qbg7 Ra6 Qgf8 Bd4 Qh8 Qc6 Bc2 Bg3 Nc4 Ra4 Na5 Ba1 Nb3 Rh4 Ra8 Qa4 Be4 Bd4 Na5 Bf4
R1nB1NQ1/br1Q1b1n/1k3B2/1P5N/1n1KN3/r2R1qRq/2P1p1B1/1Rb4N b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Ke3 d5 h4 Kd7 f4 Kc7 b4 e5 h6 g5 h7 g4 b6+ Kc6 b5+ Kb7 h5 g3 f6 e4 f5 a4 f7 a3 h6 g2 f6 a2 Nh3 g1B+ Nf2 Ra7 c6+ Ka8 c7 Kb7 Bg2 Be6 c8R Nc6 Ra8 Nge7 Nd2 Qc8 Rh3 Nb4 Rg3 Ra3+ Kd4 e3 Nde4 e2 Rb1 a1Q+ Bb2 Qa2 Qd3 Qb3 Qd2 Rg8 h8R Qf3 h7 Bh6 f8N Rg7 f7 Qd7 Ng6 Nc8 f8N Bf7 Nf4 Qh3 Nh5 Bf4 Qd1 Bg5 Rg8 Bc1 h8B Rh7 Bf6 Rg7 Kc5 d4 Be7 d3 Bbf6 d2 Kd4 Rh7 R8g5 Rg7 Rd5 Rh7 Qe1 d1N Qd2 Ne3 Nh1 Rg7 Ke5 Bf2 Rd3 Ned5 Qd1 Bc5 Qd2 Bd6+ Kd4 Bb8 Bg5 Nf6 Bh4 Nh7 Bhf6 Nd6 Qd1 Kc8 b7+ Kc7 Qd2 Kb6 Qd1 Ba7 b8Q+ Nb7 Qc8 Nd6 Qd7 Nc8 Qd2 Rg4 Qg5 Rf4 Qg8 Rf5 Ra1 Rc5 Rb1 Rc7 Bg7 Rb7 Bh8 Ra2 Bhf6 Ra3 Bd8+
1KN5/N1N4k/r4nP1/3Q2bB/1R6/1QNpB1bB/bnQPrR1Q/1qq4q b - - 0 1 illegal: No possible last move, all moves rejected
1nB3nN/bRKN2r1/1QRB1kP1/2RQp3/1N2Pb2/N6R/1qr1b3/Q3qn2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 Kf2 e5 Ke3 Ke7 Ke4 c5 d4 a5 b4 f6 h4 a4 d6+ Ke6 d5+ Kf7 d7 a3 d6 a2 Kd5 f5 e4 c4 h6 c3 h7 c2 h5 f4 h6 f3 g6+ Kf6 b6 f2 b7 Na6 Kc6 Qa5 d8Q+ Ke6 b8R Nf6 d7 Bc5 b5 Bb4 b6 Nh5 b7 Ng7 Qb6 Kf6 d8Q+ Ke6 Bh3+ Nf5 Q8d5+ Kf6 Ba3 c1N Nf3 f1Q Ng5 Ne2 Ne6 Bd2 Nf8 Ra7 Bd6 Bf4 Na3 Qf2 Rc1 a1B Rc5 Bd4 Qa1 Neg3 Rhc1 Nf1 R1c2 Rg8 h8R Qae1 h7 Nh6 Rc1 Be6 Bg4 Bf7 Bc8 Rg7 Kd7 Qa2 Rc6 Qb2 R1c5 Ng8 Kd8 Nb4 Kc7 Ra5 Ra8 Bg1 b8N Rb5 Ra7 Na6+ Kd7 Rb3 Rb7 Rc3 Kd8 Rc2 Kd7 Nc7 Na6 Bd4 Nb4 Na6 Kd8 Nb8 Kc7 Ne7 Ra7 Be6 Rb7 Bg4 Rg8 Be2 h8N Rf7 Rg7 Bf2 Rh7 Rg7 Rh3 B2e3 Qa6 Bd4 Rcb5 Ba7 Qb6 Qbc3 Ra5 Qb2 Rac5 Ng8+ Nd7+
Q2k1b1q/1b1B1Q1R/N1QB1P2/1r6/3RNqQN/NRK3bP/3rp1nn/3q4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 a5 f4 c5 d4 e5 Kd2 g5 d6 e4 d7+ Ke7 h6 g4 h7 e3+ Kc3 a4 b6 g3 b7 c4 f6+ Ke6 b5 a3 f7 Ke7 f5 g2 d5 a2 b6 Ra5 f6+ Kd6 Ne2 g1B Ba3+ Rc5 Bh3 Ne7 Ng3 Ng6 Qg4 e2 Ne4+ Ke5 d6 Nc6 b8N Nf4 b7 Nd4 Na6 Nf3 b8R Kd5 Rb3 Kc6 Bb4 Bf2 Na3 Ra5 Rad1 Rb5 Rd4 Ng2 Bc5 Rg8 h8N Bg3 Ng6 Bb7 Nh4 Qc8 d8Q a1Q+ Rb2 Rg7 d7 Qd1 Bd6 Rgg5 Qa5 Rgd5 d8Q Qa8 Rb3 Qc8 Qa4 Qa8 Kb2 c3+ Ka2 c2 Kb2 Qb8 Qdd7+ Kb6 Kc3 Qe8 Qd8+ Kc6 Qa8 c1Q+ Nc2 Qf4 Na3 Rf5 Qc4+ Kd7 Qc5 Qb8 Qc6+ Kd8 Nb4 Rfe5 Na6 Bg7 f8Q+ Re8 Qg8 Bf8 Qf7 Ree5 Qgg8 Red5 Bd7 Qc8 Qg4 Qb8 Rdb4 Rd2 Rd4 Qc8 h3 Nh2 Rf1 Qh6 Rf5 Qh8 Rh5 Qb8 Qa7 Qc7 Rh7 Qb8 Bb4 Qe5 Bd6 Qf4 Qa8+
r1r5/4K3/QBBRbpRn/1N1Q3R/1B1bP3/rP2N3/2B1Rqk1/1n1Nq1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 a5 Kd4 g5 Kc5 c6 e4 f6 d4 g4 h4 g3 h6 g2 d6+ Ke6 d5+ Kd7 h7 a4 h5 a3 h6 a2 b6 Ra6 e6+ Ke8 b3 Bd7 b7 Ne7 Bd3 Ra8 Na3 Bc8 Bd2 Ng6 e7 Kf7 d7 Qc7 d8B Qb6+ Kd6 Ne5 Nb5 Kg6 Rh5 Ra3 Bb4 Qa5 Nh3 g1Q Bb6 c5 Nf2 c4 Bc2 Na6 b8Q c3 Qa7 Nc5 Qa6 Ng4 Qd4 Qa4 Re1 a1Q Re2 Qae1 Nd1 Be6 Qd2 Rg8 h8R Qef2 h7 Qa5 Qd4 Na4 Rh6+ Kg5 Rg6+ Kf4 Qd3 Bh6 e8B Rf8 Bc6 Ra8 Ke7 Bg5 d6 Nh6 Qc4 Kf3 d7 Be3 d8R Bc5+ Rd6 Bd4 Bb1 c2 Qd5 c1R Bc2 Bf5 Re8 Bd7 h8N Nc3 Nf7 Nb1 Rh8 Bg4 Ne5+ Kg2 B4c5 Qae1 Bb4 Kh3 Rh7 Be6 Ng4 Kg2 Rh8 Nf7 Rh5 Nh6 Bd3 Rc3 Bc2 Rc5 Bd7 Rcc8 Be8 Rab8 Bc6 Ra8 Nge3+
b1N1B2Q/1k6/1n2Ppn1/2NP3B/rB1n1Q2/N1qQ1R2/KNBq4/3R1rbb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 g4 c5 e4 Kc7 d4 a5 Kd2 h5 Kc3 f6 Kb3 c4+ Ka2 c3 e6 c2 e5 a4 d6+ Kb6 e7 h4 e8B a3 g6 h3 g5 h2 d7 Ra4 g7 Na6 d5 Qc7 d8N Nc5 e6 Nb7 g6 Bd7 Qd3 Nh6 g8B Qg3 g7 Bd6 Be2 Bf4 Bd2 c1Q Bh7 Rf8 g8N Be5 Nh3 Nf5 Rd1 h1B B2h5 Nh6 Ne7 Ng8 Nf2 Na5 Nb7 Nc4 Nc5 Bd4 Nc8+ Kc7 Bf5 Ne7 b6+ Kb8 b7 Ng6 b5 Rg8 Be4 Bc6 Bb4 Nb6 Rf1 Qc3 Nd1 Qd2+ Nb2 Bg1 Rf2 Qe5 Rf3 Qec3 Bf5 Ne5 Be4 Rg2 B4g6 Rf2 Bf5 Kc7 Be4 Ng6 b8Q+ Kd8 Qf4 Rf1 Qc4 Ba8 Bc2 Qe5 Qd3 Kc7 Kb3 a2 Na3 Kb8 Rd1 a1N+ Ka2 Qc7 Qdf5 Nb3 Qd3 Nc4 b6 Nd4 b7 Nb6 Qh6 Qe5 Qh8 Qee3 Qf5 Qec3 Qd3 Kc7 b8Q+ Kd8 Bg4 Qf2 Qf4 Qfd2 Qfe3 Kc7 Bh5 Kb8 Nd7+ Kc7 Qf4+ Kb7 Nc5+
q2n3Q/2k1qB1b/2R1p2b/2BPR2P/5r1n/RK3QQr/8/B1bRnNBN b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kd7 f4 a5 d4 g5 Kd2 c5 Kc3 c4 h4 g4 d6 g3 h6 a4 f6 g2 f5 a3 f7 a2 b6 Ba6 h7 Qc7 b7 Kd8 b5 Bh6 f8B Nc6 b8R+ Kd7 b6 Na5 f6 Kc6 b7 Qd8 f7 Kd7 h5 Bb5 Be3 Ra6 Qf3 Bg7 Nh3 g1N Rc8 Nc6 b8Q Qc7 Nf2 Nh6 Nd2 Nd8 Re1 Ra8 Rh3 Nf5 Nh1 Bh6 Bg7 Rf8 h8Q a1Q+ Kb4 c3 Bc4 c2 Nf1 c1B Kb3 Qca7 Rc6 Nh4 Bf2 Qc5 Re5 Ra6 Bd5 Bd3 Rg3 Bh7 Bc4 Ne2 Bg1 Nf4 Bf6 Ra4 Bg7 Rg8 f8B Nfg2 Bf7 e6 Bf6 Ne1 Rh3 Rg2 B8e7 Nb7 Qbg8 Rga2 Qgg3 Rh2 Bg7 Rc4 Bef8 Kd8 d7 Qa8 Bf6+ Qe7 B6g7 Qe8 Bc5 Ra4 Ra6 Kc7 d8R Qe7 Rdd6 Qg8 d5 Rf4 Ra1 Qa8 Rc6+ Kd7 Ra3 Nd8 Bf6 Nhg2 Rh4 Rh3 Rg4 Nh4 Bg7 Rf5 Rd4 Rf6 Rd1 Rf4 Rca6 Kc7 Rc6+ Kb8 Rf5 Kb7 Ba1 Kb8 Re5 Kb7 Rb6+ Kc7 Rc6+
n1b3QB/rRq1NR1N/3Pn3/N2p4/3bN1b1/Q1n1r2B/1q1P3Q/k1B2B1K b - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 axb5 g5 hxg5 Ba6 exf5 Kf7 c4 Ke8 c5 Qd6 cxd6 Bc8 g4 Kd7 b4 a5 f4 c5 Kf2 h5 Kg2 e5 f6 Ke6 f7 h4 b6 e4 b7 a4 f5+ Ke5 b5 Kd4 g6 c4 g7 e3 g5 e2 g6 e1Q b6 a3 f6 a2 Nc3 Nc6 b8Q Nd8 b7 Ne7 g8B Ra7 g7 Ne6 Rb1 a1Q Ne4 c3 Qb3 c2 Qa3 Qb2 Ne2+ Kc4 Nd4+ Qe2+ Kg1 h3 Nf5 Qd3 Qa8 h2+ Kg2 Rh7 b8N Rh3 Nc6 Re3 Rg1 Qe2+ Kh1 Qd3 Bh7 Qe2 g8Q Bg7 f8B Qd3 f7 Bd4 Bh3 Qdc3 Re1 Qa5 Bg7 Qc7 Nc3 Kd3 f8N Kc4 Rf1 Kd3 Kg2 h1B+ Kg1 Be4 Bh8 Bf3 Na5 Be2 Kh1 Bg4 Nc6 Kc4 Bg6 Kd3 Nh7 Kc4 Be8 Kd3 Ne4+ Kc4 Qa6+ Kb3 Na5+ Ka2 Rf4 Qb3 Rb2+ Ka1 Qe2 Qa3 Rb7 Qb4 Ba3 c1N Qh2 Na2 Bc1 Qb2 Bb5 Nc3 Bc4 Bd7 Rf1 Nc8 Ne7 Nb6 Rf7 Bc8 Bcf1 Bd7 Qaf8 Bc8 Qe8 Na8 Qa4+ Kb1 Qb4 Ka1 Qa3+
BRBkr1Q1/b1qr2Rn/1NqPrNB1/QPb4N/1n6/3R2K1/p1b2R2/2B5 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 c5 Kf2 h5 b4 e5 d4 a5 g4 c4 g6 e4 b6 c3 g7 a4 d6 c2 f6 h4 f5 a3 g5 h3 d5 h2 d7+ Kf7 d6 e3+ Kg3 a2 b5 e2 b7 e1R Qd5+ Re6 Na3 Qa5 d8Q Qd2 Ne2 Bd7 Rg1 h1Q Qa5 Ke8 g6 Rh5 Nc4 Nc6 b8R+ Nd8 Bh3 Ne7 g8B Ra6 g7 Ra8 Nf4 Ng6 Nb6 Rh7 Nh5 Be7 Rd1 Qc3+ Rd3 Nf8 Qc4 Qc6 Rb1 Re4 Bd5 Re6 g8B Qc7 Qb3 Q3c6 Bdg2 Rf7 Bh7 Bc8 Bg6 Nh7 Bg4 Bf8 Qd5 Bh6 Rb4 Bb7 Rf4 Bc8 Rf2 Be3 Qb3 Bc5 Rb7 Rb8 Ra7 Q6d7 Ba8 Nc6 Qc4 Kd8 Qd5 Rg7 f7 Qe8 f8N Nb4 f6 Qec6 f7 Bb7 Nfd7 Rc8 Bf4 c1B Ndf6 B1e3 Bg5 Bed4 Bc1 Rb8 Bh3 Bc8 Qb3 Bd7 f8R+ Be8 Rb7 Rd7 Rg8 Rc8 Rg7 Bf7 Be4 Bg6 Rb8 Bf5 Nbd5 Ba7 Nb6 Bc5 Qc4 Bg4 Bf5 Bd1 Bg6 Bc2 Qb3 Re2 Qf7 Re6 Qg8+ Nf8 Nbd5 Re4 Rf7 Rde7 Ne8 Nh7 Bd7 R4e6 Nef6+ Re8 Rb7 Q7b6 Rg7 Rc7 Bc8 Rd7 Rb8 Qbc7 Nb6
2QQ2r1/1b5r/BqP5/kn1n1qb1/NnR1qRBB/R1p5/N2PQ3/3K2BR b - - 0 1 illegal: No proof kernel
1q1QNBN1/2qQK3/2PnNB2/b1R1B3/1rb1Pp2/Q1n2q2/1nN4k/R2r3B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 h4 Kg3 e4 f5 b4 g5 c4 a5 c6 d6 e6 f4 e7 a4 e8N g4 b6 a3 c5 a2 b5 Na6 h6 Bd7 c7 Bf5 c8N Rb8 c6 Qd7 h7 Qb7 h5 Qa7 h6 Nc5 b7 Nd3 b6 Nb2 Nh3 Be7 Rg1+ Kh2 Bg2 g3 Ng5 Bd8 Bh1 g2 Ne7 Bc7 Re1 g1N Na3 Ne2 Ne6 Bg4 Nc2 Nc3+ Kd4 d5 Kc5 Bd8 Kd6 Nf6 Ng8 d4 Rg1 Bf5 Rg5 d3 Rh5+ Bh3 Rc5 d2 Qf3 Bc7+ Ke7 d1Q Qd3 Qf1 Qd7 Qf3 Bd2 Rd8 b8Q Bf1 b7 Bc4 Qa8 Ba5 b8Q Qc7 Qb4 Rb8 Qa3 Rb4 Qd8 Qb8 Be3 Qc7 Bd4 Qb8 Be5 Qc7 Rb1 a1Q Bd6 Qa2 Ra1 Qb1 Be5 Ng4 Bg7 Ne5 Bf8 Nf7 Ngf6 Rg8 h8B Rg5 h7 Rd5 Ng8 Nd6 Bf6 Rd1 h8B Qc1 Rg5 Qce3 Bhg7 Qeb6 Rc5 Qcb8 Be5 Q6c7 Bgf6
Q1nB1KQ1/2N2bBr/1bPr2kB/3bnP1R/4Nq2/Rpq2B2/1nQQ4/5R2 b - - 0 1 illegal: No possible last move, all moves rejected
1brN2nK/7Q/1qP5/2pqR1nP/2nr1NkN/RbB2B2/1N2b2B/QQ4B1 b - - 0 1 illegal: No proof kernel
8/4n3/1P2b3/Rn1PK2N/p1RBB1B1/Nr1RbN1Q/1NR1bkr1/3qnQ1q b - - 0 1 illegal: No possible last move
k3QK2/1B5Q/1p2rP2/5nRQ/qB1B1rPb/3R1bbN/3N3B/1q1nQN1q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 c5 Kf4 Kc7 Ke5 h5 g4 h4 d4 b6 f4 Kb7 a4 e6 d6 h3 g6 h2 g7 c4 f6 c3 f5 c2 d7 Rh3 a6+ Ka7 f7 Qe8 d8Q Rc3 d5 Rc4 f6 Be7 f8B Bc5 d6 Bf2 a5 Ne7 g8Q Ra4 d7 Rc4 Kd6 e5 Be3 c1B Nd2 e4 Qh7 Be1 Ra3 Qf7 Qe8 Rb4 d8B Qc4 Qeh5 Nc6 Bd4 e3 Bc7 e2 Nh3 Qg8 Rd3 Bh4 Qe1 Bf5 Bg2 Ne5 Bb7 Qb3 Bc8 Bg6 Rf1 h1Q Rf5 Bb2 Rg5 Nc4+ Kd7 Be4 Ke8 Nf5 Bh2+ Bb7 Be7 Qd1 Kf8 Nce3 Bed6 Rc4 B6c5 Rb8 Bb4 Ka8 a7 Qa4 Bde5 Qf1 Nf3 Rc2 Bec3 Bd5 Bce5 Rb7 Rd4 Qh1 Rd3 Re7 Bec3 Bc1 Bd4 Re4 Qg1 e1Q Bbc5 Qeb4 Qe1 Qb1 Bb4 Rf2 Rg6 Nc2 Rg5 Bf4 Nd2 Bfg3 Bd7 Kb7 a8N Bb8 Nc7 Bg8 Nd5 Bbg3 Ne3 Rff4 Nef1 Bd5 Bc8+ Kb8 a6 Re5 Ra3 Nce3 Rc3 Nd1 a7+ Ka8 Rd3 Bf3 Bd7 Kb7 a8Q+ Kc7 Qae8 Kb7 Bc8+ Ka8 Qh8 Re7 Q8h7 Re6 Bb7+
K2n1rB1/B3r2b/P1R2NQR/bn1N2q1/n1Pq4/5rB1/RB2k1p1/1N1Q3R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Ke3 Kf6 Ke4 e5 Kd5 b5 h4 g5 f4 d6 a4 e4 c6 g4 c7 b4 h6 e3 h5 g3 h7 g2 a6 b3 h6 b2 a5 e2 a7 e1Q a6 Bg7 Ne2 Qb4 Be3 Bd7 c8R Bb5 Nec3 Nd7 Bc4 Nc5 Rc6 Na4 Ra2 Bf8 Bb3 Bd3 Bc4 Rb8 a8Q Rb7 Ba7 Re7 Qb7 Bg7 Qb6 Bf8 Rc8 Bg7 Kc6 d5 Bb3 d4 Nd5+ Kf7 f6 Ke6 c3 Kf5 f7 Ke4 f8N Bc2 f5 d3 f6 d2 f7 Kd3 Rc7 Qd4 Kb7 Be5 Qc6 Bg3 Nd7 Be1 Rc8 Qa5 f8B Qac5 Qh5 d1N Ka8 Qa5 Qhg6+ Ke2 Qcd6 Bd2 Rc6 Qac5 c4 Ndc3 N7f6 Nb5 Bg7 Bf5 Bc2 Ba5 Be4 Qb4 Bf8 Qbd2 Qd8 Qg5 Qd7 Re5 Bd6 Ne7+ Qd8 Re8 h8B Rf8 h7 Re6 Bg3 Re5 Nd2 b1R Rh6 Rb3 Nb1+ Qgd2 Bg7 Rf3 h8R Re6 Bc2 Qg5 Rh1 Re4 R8h6 Re6 Qh5 Bh7 Qg6 Nc8 Bh8 Ncd6 Bg7 Re7 Bf5+ Qdd2 Be6 Nb7 Bg8 Qb2 Nh5 Qbd2 Bb2 Qdf4 Nhf6 Qd4 Qc8 Nd8 Qg4 Qde3 Qd4 Qef4 Qg1 Qd4 Qd1+
2Q2n2/2R1rkr1/P2K1bqn/pNBb1R1q/2QP4/n4R2/b1B1Q3/BR2Q1N1 b - - 0 1 illegal: No proof kernel
3rRBNN/1R4PK/r1n1b1Q1/8/1bQ1P3/2q1qkpN/n3nQ1R/1N1B1rQ1 b - - 0 1 illegal: No proof kernel
bq1n3B/r1k1Q1Pq/3rP2R/3n2KQ/Q1BR2B1/3R4/1Q2p1b1/qNN2Bb1 b - - 0 1 illegal: No proof kernel
qr1rNqnB/1b3P2/p4R1b/R1N4N/3b1QRQ/1BP3K1/r3k3/2Q1n1QN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 Kf2 Kf6 h4 e5 b4 d5 c6 g5 b6 d4 b5 d3 h6 d2 c7 a6 b7 g4 h7 e4 h5 e3+ Kg3 e2 b6 e1R h6 Re4 Bc4 Re7 Nc3 Re5 Ne4+ Ke7 f6+ Kd7 f5 Kc6 f7 Bd6 f8R Bc5 f6 Be6 c8N Bb4 Ncd6 Bc5 Bb3 Be3 Nf2 Kc5 Bb2 Qd7 Rh4 Bc4 Nh1 Qf5 Qc1 d1Q Ne2 Nc6 b8Q Bd5 b7 Nd4 Ne8 Nf3 Nf4 Ne1 Nh5 Qdd3 Ra3 Qde4 Ra5+ Kb4 Qa7 Rd8 b8N Bb7 Nd7 Rd5 Ba1 Rd2 Nc5 Qc8 Be5 Qa8 Bd4 Qe7 Rf7 Rf2 Qb8 Qf8 Qf4 Nd3 Qg1 Ne1 Be5+ Bd4 Qc1 Kc3 Qf4 Kb2 c3 Be3 Bd4 Kc1 Be5 Kd2 Bd4 Ne7 Be5 Rg8 h8Q Ke2 h7 Bd2 Qg7 Rh8 Qgg5 Ng8 Rc7 Be3 f7 Bd4 Qc1 Be3 Qf5 Bh6 Rc6 Rb8 Qfg5 Rd8 Rf6 Rg2+ Kf4 g3 Rg4 Rh2 Bd4 g2 Kg3 Rb8 Be5 Rd8 Qd4 g1B Qdf4 Bd4 Qg6 Ne7 Qgg5 Rg8 h8Q Rf2 Qhg7 Rh8 Qh4 Ng8 Na4 Kd3 Qgg5 Ra2 Nc5+ Ke2 Kh2 Qd6 Re6 Rb2 Qe7 Ra2 Neg7 Re8 Kg3 Rb8 Qe8 Nf6 Qe7 Rhd8 Ne8 Ng8 Bh8+ Qe5 Rf6 Qe6 Ne4 Qd6 Qe6 Qf8 Qb6 Be5 Qg1 Bd4 Nc5
n5NQ/3nPnR1/1NBBb1N1/Q6R/3pkB1K/Rq2b3/P1q1r1R1/1b1Nr3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 h4 b5 e4+ Ke6 h6 f5 h7 d5 h5 g5 c6 d4 c5 g4 h6 b4 a6 b3 c7 b2 c6 Bb7 c8R Qb6 c7 f4+ Kh4 g3 a7 f3 Qd2 g2 Bb5 f2 Ne2 g1Q Qa5 f1N Bc6 Qa6 Bf4 Qg6 Nbc3 b1B Nd1 Ke7 e6 Kf6 e7 Qg7 e5+ Kf5 e8N Qc4 Nf6 Ne3 e6+ Nd5 e7 Qf7 Rh2 Nd7 Rg2 Rb8 a8R Qc2 Rd8 Ba6 c8N Rb2 Nb6 Bc8 Bd6 Qe6 Nf4 Qe3 Ng6 Qeb3 Qa7 Nc7 Qa5+ Ne5 Ra6 Be6 Ra7 Bg7 Rf8 Na8 Rf7 Qc5 Ra6 Re2 Ra7 Bf8 Rg7 Nf7 Ra6 Be4 Rc1 Bb1 Rc3 Re1 Rh3 Re2 Qb4 Qcc2 Ra3 Re1 Qa5+ Ne5 Ne4 Nf6 Rh1 Rg8 h8B Nd7 h7 Re2 Nf6 Re1 Rf7 Bh6 Rg7 Be3 Rh3 Rf8 Ng8 Rf6 Qc3 Nf7 Qa5+ Qd5 Bf4 Ke4 Bd6 Qc1 Kg3 Nfe5 Rh5 Qc5 Kh4 Rf2 Rf7 Rfe2 Bf6 Qc4 h8Q Qc2 Rg7 Nf7 Bg5 Nc7 Bb5 Qdb3 Bgf4 Na8 Bc6+
1r5k/1RRPn3/5Q2/NKN1N1r1/R2PR1rq/3Q1n2/qBNb1pB1/3nQ2b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 c5 Kd2 a5 Kc3 g5 Kc4 f5 e4 Kf7 b4 Kg7 h4 a4 e6 a3 b6 a2 b7 g4 e7 g3 e8R g2 b5 f4 b6 f3 e5 f2 d6 Nh6 e6 Na6 b8N Qe7 d7 Rg8 b7 Kh7 Qd3+ Kg7 Nf3 g1Q Kb5 c4 Nc6 c3 b8N c2 Bb2 c1R Na5 Qf7 e7 Kh8 Na3 Bb7 Bg2 Nf5 h6 Ne3 h7 Nd1 h5 Qh2 Ne5 Rg5 Nc2 Nb4 Na6 Qh4 Nc5 Nd5 Re1 Rg4 Re4 Rb8 Rc8 Rg5 e8Q Ne7 Rb1 a1N Rc7 Nb3 Ra1 Nd2 Ra4 Nd5 Qe6 Nf3 Qe7 Bh6 Qe8+ Kg7 h8R Ne7 Rf8 Rg4 Rh8 Bd2 h6+ Kf6 h7 Kg7 Rf8 Qa2 Rf6 Rb1 Rb6 Ba8 Rbb7 Ra1 Qf7+ Kh8 Qf4 Rc1 Qfe3 Rb1 Qe1 Rc1 Na1 Rc3 Nc2 Rg5 Ne6 Rc6 Nc5 Rcg6 Nec4 Rg4 Ne5 R6g5 Bf1 Qf7 Re2 Kg7 Rb6 Qa2 Bh3 Bd5 Rbb7 Nh2 Re3 Bh1 Re4 Nf3 Bg2 Nf5 Nec6 Ne7 h8Q+ Kg6 Qf6+ Kh7 Ne5 Kg8 Qf4 Kh8 Qf6+
2BQ1QNK/2RP2N1/1PQ3r1/2q3nb/Nrp2q2/1N2B2Q/1k3bqb/Rn2B3 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 g5 d4 e5 f4 c5 h4 a5 b4 a4 d6 g4 d5 g3 h6 g2 d7 c4 h7 a3 b6 a2 d6 Ra4 h5 Be7 b7 Qb6 d8Q Nh6 b5 Ra5 Ne2 g1Q Nbc3 Qa6 b6 Qg8 Qa4 Qe6 Qc6 Re8 h8N Ra4 Ng6 Rg8 Nd4 Rb4 Be3 Nf7 h6 Bd7 h7 Qa8 Nb3 Na6 b8B Nc7 Bh3 Be8 h8Q+ Rg7 Bg4 Nb5 Qh3 Na3 Rhd1 Rg8 Rd5 Qd7 Rc5 Ng5+ Kd5 e4 Kd4 Kg7 Ke5 Nb1 f6+ Kf7 f5 Qc8 Bc7 Bf8 Ne7 Rg6 Ng8 Bg7 Bf2 e3 Be1 e2 Bb8 Bh6 Bc7 Kf8 f7 Kg7 f8N Qab7 Bd2 e1B Be3 Bf2 f6+ Kf7 Ne6 Bf8 Qch1 Qg2 Ng7 Qb8 Bc8 Be7 d7 Bd6+ Kf5 Bh2 Bg3 Qc7 Nh5 Qd6 Rc7 Qc5+ Kg4 Ke6 f7 Qd6 f8Q Qc5 Ne2 Kd5 Ng7 Ke4 Kh5 Kd3 Nc3 Kc2 Bh4 Kb2 Bg3 Qg1 Qc6 Qg2 Nf5 Rg7+ Kh6 Bh5 Bh4 Ne6 Bg3 Rg6+ Kh7 Ng5+ Kh8 Na3 Rd1 a1Q Ng7 Qc1 Rg1 Qd2 Ra1 Nb1 Bh4 Qdd4 Bg3 Qf4 Bh4 Bfg1 Be1 Bf2 Na4+
1BrR1qB1/b2pk3/Q3b3/n1Qn1Q1N/Q1N5/1BrR3q/1Pn2q1P/2K2NB1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 f4 e5 c4 a5 c6 a4 c7 e4 f6 g4 c5 g3 f5 a3 c6 a2 f7+ Ke7 b6 g2 f6+ Kd6 h6 Ra6 b7 Bg7 f8Q+ Ne7 h7 Ke6 f7 Ra5 Nh3 g1Q Bc4+ Kd6 Qa4 Rb5 Nf4 Rh5 Bb3 Rb5 Nh5 Qg3 Rd1 Na6 b8B Rg8 h8Q Bb7 c8B+ Nc7 Qh6+ Bf6 Qg6 e3+ Kc2+ Rd5 Rd3 e2 Nd2 e1Q Nf1 Qh3 Be3 Qf2+ Kc1 Ba8 Qf5 Bd4 Ba6 Ba7 Bac4 Qc8 Qg7 Qf8 Qa6 Rd4 Qgg4 Rh8 Qd1 Bb7 Bd5 Rc4+ Qc2 Rc3 Bb6 Qg8 f8Q Qf7 Qc8 Qf8 Bd4 Ba8 Bg8 Bb7 Qa4 Ba6 Qb7 Bc4 Qba6 Be6 Bb6+ Nd5 Be3 Ke7 Bd4 Ne8 c7 Nd6 c8N+ Ke8 Bb6 Nc4 Nd6+ Ke7 Be3 Na5 Nc4 Qfg3 Bg1 Qgh4 Kd2 Qd4 Re1 a1N Kc1 Qf2 Re5 Nb4 Rc5 Nd5 Rc8 Qhe3+ Kb1 Qh3 Qc1 Nc2 Rd8 Rh7 Qe3 Rg7 Kc1 Rg4 Nb6 Rgc4 Qd4 Rc7 Nc4 Rc8 Qc5+
K2NkN1n/RQP5/q3p1RN/2bn1QP1/1rq1r1N1/1Q1B4/R2r3B/Q1q4b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 a5 Ke3 d5 Kd4 h5 f4 e6 b4 h4 c4 h3 g4 h2 c6 a4 g6 a3 g5 a2 b6 Qd6 c5 Ra5 b7 Na6 b8Q Rh7 b5 Ne7 c7 Qc6 b6 Rf7 f6 Ng8 g7 Ne7 g8N Rg7 f7+ Kd7 f5 Nb4 b7 Ra3 f6 Re3 Nf3 Ng6 Bd3 Nh4 Nbd2 Qa4 c6+ Kd6 Nb3 Ng6 Nc5 Re2 Nh6 Re3 Ne5 Be7 f8Q Qa6 f7 Qa3 Neg4 Nh8 Rf1 h1Q Rf2 Re5 Bf4 Qc1 Bh2 Qf1 Rf6 Rg8 Rg6 Qe2 Qa8 Qf1 b8Q Bb7 Qb3 Qe2 Rb1 a1Q+ Rb2 Qa6 Ra2 Rg7 Qba7 Qef1 c8R Rh7 Ng8 Rh4 c7 Bc6 Nb7+ Kd7 Nd8 Re3 Be4 Qfc4+ Ke5 d4 N8h6 d3 Q8b7 d2 Ra8 d1R Qd4+ Nd5 Ra7 Rd2 Qa1 Rf3 Bd3 Ba3 Qc5 Rf4 f8N+ Ke8 Qf2 Bc5 Qf3 Bb6 Kd6 Re4 Qf5 Ba4 Qb4 Bd1 Qa3 Bf3 Qb3 Bh1 Ne5 Qa5 Neg4 Bc5+ Kc6 Qaa3 Q7b6 Qaa4+ Kb7 Qca6+ Ka8 Rb4 Ne3 Rhe4 Neg4 Qac4 Qb8 Qaa6 Qb7
2Nb2QR/2P4R/2p3B1/2PBkr1N/5QB1/q1b1qQ1K/1BQn1r2/n1R3qn b - - 0 1 illegal: No extended proof kernel
RBBq1B2/1P3b2/2q2b1R/8/NQ1n3Q/Kn1p2Rn/NrrR2P1/1Nk1qN2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 h5 Kb3 a5 f4 e5 c4 d5 c6 d4 c5 e4 b6 a4+ Ka3 h4 b4 e3 b7 h3 b5 e2 g6+ Kf6 c7 e1N g7 h2 b6 Qd6 Nf3 Ne7 g8R Ra7 Rg3 Nd7 b8B Ra6 Nfd2 Nc6 Ra2 Qe6 Qh5 Nf3 Qh4+ Ng5 b7 d3 Be2 Ra5 Nf1 Bg7 Rd2 Rb5 Bg4 Nd4 c6 Nc5 Bh3 Bd7 c8N Rb2 c7 Qc6 Na7 Rc8 Nb5 Ncb3 N5c3 Be6 Bg4 Bf7 Bh3 Re8 c8N Re2 Nb6 Bh8 Kb4 a3 Nba4 a2 Ka3 Kg7 f6+ Kg6 Bc8 a1Q+ Na2 Rc2 Bb2 Rf2 Bc3 Bg7 Bb4 Qac3 B4d6 Qa5 Nac3 Qd8 Bf8 Re2 Qg4 Kh6 f5 Nh3 Qh4+ Bh5 Rg1 h1Q f7 Rf2 f6 Re2 Nh2 Rb2 Rgd1 Qe1 Nf1 Rf2 Bb4 Bh8 f8R Rc2 f7 Bf6 Re2 Rb2 Re6 Rfc2 Rd2 Qce8 Rge3 Qc6 Rfe8 Kg6 f8Q Kf5 Rg3 Bg6 Qfh8 Bf7 Bf8 Ne2 Qb4 Ned4 Rd6+ Kf4 Re5 Qd1 Ra5 Qc1 Ra8 Qe1 Nh2 Qf3 Qh4+ Ke3 Rg7 Qc6 Re6+ Be5 Rh6 Bf6 Rg3+ Nf3 Rd1 Bh5 Ne4 Bf7 Nf1+ Ke2 Rg4 Nfd4 Rg3 Qf2 Rd2+ Ke1 Re2+ Kd1 Rd2+ Kc1 Nec3 Qe1 Na2+
3b3R/qP1QBRKb/2BP4/qN1Bpq2/r6r/R3nNb1/3R1NkB/nQ6 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 a5 d4 h5 g4 c5 b4 c4 b6 c3 b5 a4 f6 e6 g6 c2 Kg5 e5 f4 a3 f5 h4 b7 h3 g7 a2 Kg6 h2 b6 Qd7 g5 Nc6 b8Q+ Qc7 f7 Ba6 f6 Bb5 Nc3 Nb4 Nf3 Ra5 Bg2 Bf1 Bf4 c1Q Nb5+ Kd7 d6 Kc6 d7 Kd5 d8R+ Ke4 d5 Nh6 g8N Nf5 Nh6 Qb1 Ng4 Be7 f8B Ra4 f7 Ne3 Kg7 Bd3 g6 Rh4 b7 Qb6 Qc8 Qa5 Qd7 Nbc2 d6 Bg5 Be7 Qa7 Rg1 h1Q f8R Qb4 Bg3 Qba5 Qb1 Qh3 Bh2 Bf4 Rh8 Bg3 Nf2+ Kf4 Rd1 Qf5 Rd2 Be4 Qh1 Bd3 Rf1 a1B Rdf8 Be4 Rf7 Bd4 Ra1 Bb6 Ra3 Bd8 Qb1 Bd3 Kg8 Be4 g7 Na1 Kf8 Bc2 g8B Be4 Kg7 Bc2 Ng5 Bd3 Bc6 Be4 Ngh3+ Kf3 Ng1+ Kg2 Nf3 Qe6 Rf6 Bh7 Bf7 Qh3 Bfd5 Qf5 Rf7
1k1K2bR/Rpn2NN1/2RB4/1r3nrP/4nr1b/BN1PQQ1q/6B1/1B1R3q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 g5 Kg4 c5 Kf5 Kc7+ e6 f6 e4 g4 h4 g3 a4 g2 d6+ Kc6 d7 Kc7 e5 c4 a6 c3 a7 c2 h6 Na6 a5 Rh7 e7 Nc5 e8N+ Kc6 a6 Be7 e6 Nd3 h5 Ne1 Nf3 g1Q Ba3 c1N Ng7 Kc7 Ne5 Qg3 Bg2 Na2 Qf3 Nc3 Nf7 Nd3 Rc1 Nf4 d3 Rh8 h7 Nd5 Nd2 Qh3+ Kg6 f5 Nb3 Bg5 e7 f4 e8B Bh4 Rc2 Nh6 Rd1 Rg8 h8R Nf5 Rcc1 Rb8 a8Q Rf8 Qe3 f3 a7 f2 Rc2 f1R Rcc1 Qe7 Bd6+ Kc6 d8B+ Bd7 Qf3 Qe4 B8e7 Nc7 Ba3 Rf2 Bed6 Rb2 Rc2 Rc8 Qb8 Kb6 a8R Be6 Ba4 Qe1 Ra5 Ne4 Ra7 Qeh1 Qa8 Rce8 Rcc1 Re7 Qe8 Bd5 Rc2 Re5 Qe7 Bc4 Qg5 Rb5 Qge3+ Kc6 Rcc1 Kd7 Rc3 Kc8 Rc2 Bd5 Rc4 Kb8 Rc6 Ng5 Kf6 Rf2 Na1 Rg8 Bc2 Ba2 Nb3 Rf1 Nd8 Ne4+ Kf7 Rf2 Bb1 Rf1 Ne8 Rg5 Ng7 Nfg3 Ke7 Nf5+ Kd7 Rf2 Nd2 Bc4 Nb3 Bg8 Nf7 Rf1 Kd8 Rf2 Qfe2 Rf4 Q2f3
1QN4r/1p1q3N/N1R1b1B1/nnr2P2/1q1P4/Bq2RNB1/1bQB4/k2R1Kb1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 a4 Kd6 f4 g5 h4 e5 h6 c5 f6 e4 h5 c4 h7 g4 h6 g3 a6 g2 a7 e3 a5 c3 f7 e2 a6 c2 Rh3 Qd7 Nc3 Qd8 Re3 Qf6 Na4 Bh3 Nc5 Qe5 Nf3 Be7 f8N Kc7 d6+ Kc6 d7 Kb5 d8B Bg5 Be7 Nc6 Kf2 Rc8 a8Q Kb4 a7 Qe4 Qb8 Qf5 a8N Nf6 Nb6 e1Q+ Kg1 Qd2 Bd3 Kc3 Na6 Ne4 Bea3 Qd7 Rb1 Nd6 Bg6+ Qd3 Kf2 Rc7 Nc8 Be6 f5 Nb5 Qe2 g1B+ Kf1 Na5 Ra1 Rg8 h8R Rc5 Nh7 Rd8 Rf8 Re8 Rf6 Rh8 Nf8 Kb3 h7 Qc3 Rb1+ Ka2 Qd2 Qb4 Qg2 Rg8 h8B Bf4 Bg7 Rh8 Nh7 Bg5 Bf8 Bh6 Bd6 Bf4 Rbb3 Ka1 Rbd3 Bg5 Rd1 Bh6 Bd2+ c1Q Bg3 Qcb1 Bdc1 Q1b3 Qc2 Bf4 Ree1 Bd2 Re5 Bc3 Re3 Bf7 Rb6 Be6 Rc6 Bb2 Bd2+
3KN2Q/Pr1b4/2R4B/2r1Rbk1/1R1n1nn1/Q1BqQqp1/P1B2RN1/2b1B3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 b5 d4 c5 h4 b4 h6 g6 d6 e6 a6 b3 d7 c4 h5 b2 d5 c3 a7 c2 d6 Qb6 d8R Na6 h7 Qb5 h6 Qd7 Nh3 Bb7 Qd3 Bf3 Rb8 Qe7 d7 Bg7 d8B Bg2 Nd2 b1B Qe3 Bd5 Bd3 Bb3 Re1 Ba4 Rb4 Bb5 Ba5 Qf8 Nc4 Rc8 Nd6 Nc5 f3 Bd7 Ne8+ Ke7 Kg5 e5 f4 e4 Bd2 c1N Bc2 Ne2 f6+ Kf7 f5 Nd4 Bc1 Nd3 Nf4 Rc5 Ng2 Nf4 Re2 Qd6 Bd2 Qc6 Rf2 Qb5 Bc3 Qd3 Be1 Ne7 Bc3 Nec6 Be1 Rf8 h8R Ne5 h7 Ng4 Rg8 Bc8 h8Q Bd7 Nc7 Rb8 Rc8 Bf8 Ne8 Rb7 Rc6 Bd6 Rb2 Be7 Bac3 Bf8 Rb4 Bg7 Qc1 e3 Qa3 e2 Qh3 Kg8 Qe3 Kh7 f7 Be5 f8Q Bd6 Bed2 e1Q Qf6 Qg1 Be1 Qgf1 Qd8 Be5 f6 Qfe2 f7 Qf3 Qf6 Bc7+ Qfe5 Bd6 f8B Bc7 Bh6 Ba5 Rc4 Bb4 Qb3 Ba3 Rb4 Bc1 Qa3 Qdd1 Bb3 Bbf5 Bc2 Qd3 Qb8 Nh2 Kf6 g5 Ke7 g4 Qbe5 g3 Kd8 Ng4 Qf6 Bfe6 Qh8+ Kg6 Rab1 Kh5 R1b2 Bf5 Rb5 Qfd1 R2b4 Qf3 Bf8+ Kg5 Ra5 Rc4 Re5 Rc5 Bh6+
6r1/Pn2q3/QQR2b1q/4N1k1/2K1p1b1/rn2P1q1/QN2Q1RB/r1RRN2B b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 d4 c5 Kd2 e5 Kd3 Ke7 h4 b5 a4 f5 a6 f4 a5 f3 a7 f2 a6 b4 h6 b3 h5 e4+ Kc4 b2 h7 Qd6 g6 Kf6 h6 Qd7 d6 Qb7 d7 Be7 d8N Bd6 g7 Qc6 d5 Bg3 d6 Qb6 d7 Qc7 Bf4 Bh4 e3 Ne7 g8Q Ng6 Nf7 Qd6 d8Q+ Qe7 Qe2 Nf8 Bh2 Nc6 Na3 b1Q Ne5 Nd7 Ngf3 Qe1 Rc1 Nd4 Bg2 f1R Qb6+ Kf5 Rd1 Qg3 Ne1 Bf6 Qd5 Rd8 h8R Rg8 h7 Kg5 Rg1 Nb3 Bh1 Nb8 Qde6 Nc6 Rg2 Nd8 Qec6 Bg4 Rc1 Rb8 a8Q Nb7 a7 Rg1 Qa4 Rbd8 Qaa6 Rd3 Qad8 Rf1 Qd4 Rg1 Qdb2 Rf1 Qa2 Rg1 Kb5 c4 Rd1 c3 Nac4 c2 Nb2 Rf1 Kc4 c1Q+ Nc2 Rg7 Rc8 Rg8 h8R Qd2 Rc6 Qa5 Rd2 Ra1 Rd1 Qaa3 Rh7 Qf8 Re7 Qh6 Rec7 Qe7 Rc8 Rd5 Ne1 Ra5 Rcd8 Ra3 Rc1 Qhh4 Rd2 Qh6 Rdd1
k2N4/2nNQ1n1/B1r2Q1B/PnPQ1q1B/1Q6/3p1n2/1r1R1Kbn/2bN1R1B b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 c4 e5 f4 d5 h4 Kd7 a4 Kc7 c6 b5 h6 g5 h5 g4 f6 d4 f7 g3 a6 e4 h7 b4 a5 b3 a7 g2 h6 b2 f5 e3 f6 e2 Nf3 g1N Ne5 Na6 Nc3 b1N Nd7 Nd2 Rh2 Nb3 Kf2 e1N Be2 Ba3 f8Q Ne7 f7 Bb2 Bh5 Rb8 a8B Nf5 Qe7 Ngf3 f8Q Ng7 c5 Rb5 Qff6 Bb7 Bg5 Rf8 h8N Qc8 h7 Bc1 Nf7 d3 h8Q Rb6 Bh6 Nbd4 Nd8 Rb2+ Qd2 Nb5 Nd1 Rg8 Rg2 Nh2 Qf5 Nef3 Qd5 Rf8 Rb1 Rf6 Qhf8 Rb3 Qb4 Rd6 Qff6 Rb2+ Kg3 Re6 Rd2 Rd6 Kf2 Re6 Nf8+ Kb8 c7+ Ka7 Nd7 Rc6 Ne6 Qf8 c8B Nac7 Nd8 Qf7 Qfd6 Qf5 Qdf6 Ra6 Qdd6 Be4 Qd5 Rc6 Ba6 Ne1+ Kg1 Bg2 Ra1 Nef3+ Kf2 Qe4 B8b7 Qf5 Bf4 Ng1 Qg6 Rb6 Qf3 Bh3 Ne3 Rf6 Bd5 Rc6 Qgf6 Ka8 Bh6 Bf1 Qff4 Bh3 Bh1 Ngf3 Qfc4 Bf1 Qd5 Bg2 Re2 Bd2 Rf1 Bc1 Nd1 Na3 Rc2 Nab5 Rd2
q1n1b1r1/6n1/2B1n1PB/2Q2R2/Q1KQnP1N/BRQ3Np/1rB2nR1/4k1b1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 a5 f4 c5 g4 e5 b4 h5 d6 a4 d7 a3 b6 h4 g6+ Kf6 g5+ Ke7 b5 Kd6 b7 Kd5 f6 h3 g7 a2 g6 Ne7 b6 Rg8 f7 Ra4 Rh2 Nf5 Ba3 Rb4 Qa4 Rb2 Rg2 Nc6 b8R Na7 b7 e4+ Kc3 e3 d4 Ke4 d5+ c4 d6 e2 Nf3 Ke3 Nbd2 e1N Ne4 Nd3 Nh4 Nf2 Ng3 Qe8 d8B Bd7 Bg5 Nc8 Bd3 Be7 Rb1 a1N f8Q Nb3 Bc2 Nbd4 Bh6 Ne6 Ra1 Bc6 d7 Bc5 d8Q Bb6 Qdd6 Qd8 Rd1 Be8 Rd5 Ba7 Qdb4 Bb6 Qbb3 Ne4+ Kb4+ c3 Kc4 Bd4 Qc5 Qa5 Qbb4 Qa8 Qba5 Rh8 g8B Nfg7 Bf7 Rf8 Rf5 Rg8 Bd3 c2 Qc3 c1N Bb1+ Nd3 Bc2 Nc7 Bd5 Nce6 Bc6 Na7 Q3b4 Ndf2 Qbb3+ Kd2 Qc3+ Kc1 Rd8 Nc8 b8Q Be3 Rd3 Bd4 Qbb6 Be3 Q3e5 Bd4 Rb3 Kd2 Qbc7 Ke1 Qed5 Nh1 Qce5 Bg1 Qd3 Nf2 Qed4 Bh2 Qf3 Bg1 Qfc3+
1r1qn1R1/2QQ1Nnk/B4np1/R2N1P1B/4r3/B6n/Q4bPB/QN2bn1K b - - 0 1 illegal: No extended proof kernel
N2K2Q1/k3R1Rb/PrQB1R1n/RBpQ4/rr4P1/q3B1rN/3Q4/nr2b3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 e5 Ke4 c5 f4 Kc7 g4 h5 d4 b5 a4 Kb7 d6 b4 Kd5 e4 a6+ Kb6 f6 h4 a5+ Ka7 f7 b3 d7 b2 Ke6 e3 g6 e2 f5 e1R+ Be3 h3 f6 h2 d5 Bh6 f8B Nc6 f7 Qc7 d6 Qb7 g7 Qc7 Bb5 Nge7 g8Q Bg7 Nc3 b1R Qd2 Bb7 d8Q Bc8+ d7 Bf6 Nd5 Bc3 Nh3 Rg1 Nb6 Rg3 Re1 Nf5 Bd6 h1R f8R Rb4 Rf6 Ncd4+ Kf7 Rh5 Ke8 Nh6 Re2 Qc6 Qc7+ Qb7 d8Q Rhb1 Qc6 Nc2 Qdd7 Rg5 Kd8 Rg6 Qf5 Qf7 Qfd5 Qe6 Ra3 Na1 Rb3 Qe4 Re1 Qf3 Re2 Rb8 Na8 Ra4 Rb4 Rb6 Re4 Rb7 Re7 Bf5 Rg7 Rbb4 Bg5 Rb1 Ree7 Bb4 Bgf4 Qa3 Be3 Bc3 Q2d4 Be1 Qd2 Bc2 Qc8 Bf2 Rf4 Qa2 Be5 Rf3 Be8 Rg3 Nb6 Re6 Rf6 Rc6 Bd6 Rbc7 Qd7 Kb8 a7+ Kb7 a8R Qa3 Nf4 Be1 Nh3 Bh7 Ra6 Rab4 Na8 Kb8 Bg6 Rcb6 Q7c6 Rb7 Be4 Ra4 Bd3 R7b4 Rb6+ Ka7 a6 Rb7 Rb5 Re4 Ra5 Reb4 Bc7 R7b5 Bf1 Rb7 Bb5 Rb6 Bd6+
1bB1K2B/1rk2Q2/P1B2P2/pn5R/4Q3/Q1n2rBb/1n1Q2Rq/N1R1nn1N b - - 0 1 illegal: No possible last move
b6n/1Q1nKn1p/3N1Q1P/2r3kn/2P2r1q/B1BNN1bR/B7/N1B1n1QR b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 Ke7 Kd3 g5 Kc4 a5 Kd5 g4 e4 d6 f4 g3 h4 g2 c6 a4 f6+ Kf7 e6+ Kg6 c7 a3 f7 a2 e5 Ra4 h5+ Kh6 b6 Be7 b7 Re4 f5+ Bg5 f6 Rf4 e7 Bf5 c8Q Rf2 e8N Bf4 f8Q+ Kg5 f7 Qd7 e6 Qa4 h6 Nd7 e7 Be4+ Ke6 d5 b8B d4 Ng7 d3 e8N d2 Rh3 Ne7 Nd6 Ng6 Bc4 Ba8 Ngf5 Bg3 Qb7 Rf4 Ne2 g1N Ne3 Nf3 Qg1 d1N Nd2 Nc3 Nb3 Ne4 Rb1 Rg8 Na1 Nh8 Ke7 Nef6 Bc7 Nfe5 Ba5 Rg7 Bc3 Nh5 Qd8 Rg6 f8B Nef7 Bd5 Rgf6 Qdb6 Rc4 Nf4 Rc5 Nd3 Rf2 Rb4 Rf5 Rbh4 Qg4 Rh1 Rf4 R4h3 Qh4 Ndc4 Rf5 Be5 Qe4 Nb3 a1N Ke6 Ra5 Bfa3 Qh4 Ke7 Rf6 c3 Nc2 Na1 Ne1 Qe6 Ra4 Nd6 Rb4 Ba2 Rb5 c4 Rc5 Bc3 Rf4 Qf6+
1Q1Q4/bn1bBBBp/6PR/1n1r2QN/NQ2P1Rq/1NN2k2/2K3n1/1nn1r3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Ke7 b4 f5 d4 c5 Kd2 a5 e4 f4 g6 a4 g7 f3 d6+ Ke6 b6 a3 b7 f2 b5 a2 d7 c4 b6 c3+ Kc2 Qc7 d8B Ra3 g5 Bd7 d5+ Kf7 d6 Kg6 e6 Ra6 e7 Ra4 e8N Nh6 Qd4 Na6 b8N Nf7 b7 Nc5 Be7 Qd8 Bc4 f1N Ne2 Nd2 g8Q+ Bg7 Rg1 Kh5 Na6 Bf6 b8Q Nb7 Qb6 Bd4 Qb4 Ba7 Bb2 Ra3 Rh1+ Kg4 Nf6+ Kf3 Nc1 Ra5 Nb3 Rd5 Qg7 Rg8 Nac5 Rf8 Na4 Rg8 Na3 Nb1 Nb5 Rf8 Rh6 Rg8 Kc1 c2 Nh5 Rf8 Bc3 Rg8 Kb2 c1N Qe5 Rg6 Kc2 Rf6 g6 Rf4 Bf8 Qh4 Qg5 Rg4 Bd4 Rg1 Be7 Re1 Bb2 Nd3 Bbf6 Nf4 Nbc3 Ng2 Bh8 Nd2 Rc1 Nb1 Bg7 a1N+ Kb2 Bb5 d7 Nfd6 d8Q Bd7 Rc2 Nb5 Re2 Rf5 Bf7 Rd5 Rd2 Nc2 Rd1 Ncd4 Kc1 Ne2+ Kc2 Nc1 Rd2 Nf4 Rh2 Ng2 Rh3+ Qg3 Rh4 Qh2 Rg4 Qh3 Qbc8 Qh4 Qb8
2b2rQR/R1K1P1R1/RB1P4/1pb4B/bN2B3/1n2r1NQ/N1N1bn2/1q2k1b1 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Ke7 Kf3 f5 Kf4 h5 e4 c5 g4 b5 a4 c4 d4 h4 e6 Kd6 a6 c3 a7 h3 e5+ Kc7 a5 h2 a6 Kb6 e7 c2 e8N Nc6 e6 Bb4 d6 Nce7 Ke5 f4 g6 f3 g7 f2 d7 Bc5 d5 Rh6 g5 Bb7 g6 Be3 Kd6 Nc6 e7 Qb8+ Nc7 Bg5 d8N Bc8 Be2 f1B Be3+ Nd4 Ne6 c1B Qb3 Nf6 g8Q Ng4 g7 Nf2 Nc3 Rh3 Bh5 Be2 Na2 Ka5 Qd3 Bd1 Ne2 Ba4 Ng3 Nb3 Nd4 Qb7 Nc2 Ba3+ Bc5 Rb8 a8B Be3 a7 Bb4 Rhg1 h1B Na6 Bf3 Rh1 Ba3 N6b4 Be2 Qdh7 Qa6+ Kc7 Qg6 d6 Qd3 Bd4 Qd1 Be4 Qb1 Nd5 Bc5 a8R+ Ba6 Ndb4 Rf8 Rb8 Bc8 Rb6 Ng4 Rb7 Bg1 Qf5 Nf2 Qg4 Rh4 Qh3 Rhf4 Rh2 Rf3 Ra7+ Ba6 Rg2 Nd2 Qf7 Bb3 g8R Re3 Nd3 Bb4 Nf5 Ba3 Rh8 Ka4 Bb6 Bc5 Na3 Bc2 Ndb4 Bcd1 Qg6 Kb3 Nc1+ Kc3 Qg8 Bc8 Rg7 Bc2 Ng3 Bcd1 Nc4 Bb3 R1a6 Ba4 Na3 Nb3 Nca2+ Kd2 Nac2 Kd1 Na1 Ke1 Nac2+
4bB2/kp1B1Q1P/2Qr2Q1/5qn1/2B1Q1bb/2Rn3N/1r3P1b/Kb1NRRB1 b - - 0 1 illegal: No proof kernel
nbn3r1/PNP3B1/Q4n2/R2Nq2B/RB1R4/n2n1bR1/3KQ1p1/k1BN1r2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 f4 Kf7 a4 Kf6 h4 g5 c4 e5 h6 d5 h5 b5 c6 g4 a6 g3 a5 b4 c5 g2 a7 d4 c7 e4 h7 b3 c6 d3 h6 b2 a6 e3 Ra4 e2 Nc3 b1N Rh3 Qe8 Rg3 Qe3 Nd5+ Kf7 f6 Ke6 f7 Bc5 f8Q Bd6 f5+ Ke5 f6 Bg4 c8N Na3 f7 Nd7 Nh3 Ndf6 Nf2 Bc7 Nd6 Bf3 Nb7 Ne7 Qc8 Rf8 h8B Bb8 h7 Qe4 Ra5 Kd4 Bg7 Qe5 Kd2 e1N h8R Kc4 Qe2 Kb3 Rhh3 Ka2 Rh4 Ka1 Nd1 Rg8 Qe6 Nc8 Rd4 Rf8 Kc3 Rg8 f8B d2 Bb4 Nd3 Qd6 Nc5 Qe6 Ncd7 Qd6 Ndb6 Qe6 Bd6 Kd3 Rb8 a8R Bc7 Ra7 Ra8 Ra4 Bb8 c7 Rf8 N1c3 d1N Kd2 Nf2 Nd1 Rg8 Rd3 Bh5 Qe3 Ne7 Qc5 N6g4 Rd4 Nd3 Be2 Rf8 Qc2 Rf1 Kc3 Nf6 Bf3 Bg4 Qe2 Bh5 Kd2 Bg4 Nc5 Bh5 Rb7 Ba7 Qc6 Rc8 Qb5 Bb8 a7 Rf8 Qa6 Na8 Rb5 Rg8 Nb7 Nc8 Rba5 Bg4 Be4 Bh5 Bg6 Bf3 Bh5
1Br2bN1/3B4/r2R4/1Q1Qn2B/BK1bb3/3P2QN/1nP2p2/qrNNRkr1 b - - 0 1 illegal: No proof kernel
BR1b1K2/5R2/kQQQ2N1/1b1r1bnn/PB1NP3/1B6/qQprr1R1/2b2R2 b - - 0 1 illegal: No possible last move, all moves rejected
kBB1n1qN/1Nr3Nb/n1Q3rQ/2b1KB1P/N2RpRr1/2P3B1/2n5/5n1R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 a5 Kd4 d5 f4 Kd7 b4 Kc7 h4 Kb7 b6 g4 h6 g3 h7 g2 f6 e6 b5 a4 f7 a3 h5 a2 f5 Bg7+ f6 Ra3 f8Q Qe8 c6+ Ka8 c7 Qe7 b7+ Ka7 Bd3 Rb3 Nc3 Qe8 Qf3 Qg6 Bf5 Rb4+ Ke5 d4 Nge2 g1R Na4 d3 c3 d2 Nd4 d1N Qc6 Na6 b8N Ne3 Nd7 Nf1 Bf4 Rg2 Rc1 a1N Ndc5 Nc2 Nb7 Ka8 b6 Qg4 Qfd6 Bf8 f7 Nf6 Bg3 Ne8 Rd1 Qg8 Rd3 Bd7 c8B Be7 f8R Rg1 Nf3 Rg4 Ng5 Rg2 Rd4 Rg1 Qdc7 Bc5 Q6d6 Bb5 Qcc6 Bc4 Rf6 Ba2 Qf8 Bb1 Qh6 Rg2 Bd3 Rg1 Rff4 Rg2 Bf5 Rg1 Ke4 e5 Ne6 Rg6 Bf2 R1g4 Ng7 Qe6 Bg3 Rf8 h8N Qg8 Bcd7 Rf7 Bde6 Rc7 Kd5 e4 Ke5 Ba2 Bc8 Qf8 Rb4 Bg8 Rd4 Bh7 Na5+ Kb8 b7 Qg8 Qd6 Ka7 b8B+ Ka8 Nb7 Rf7 Qb6 Rc7 Qc6
2rr1qR1/2RB3K/3br1r1/1N2QkPn/1Rp3RB/2Pn1B2/2NN1Q1B/1n1b4 b - - 0 1 legal: proof: e4 b5 h4 e5 a4 g5 hxg5 f5 exf5 e4 axb5 e3 dxe3 Ne7 e4 Ng8 e5 Kf7 Qg4 Ke7 Qd1 Ke8 Ke2 Ke7 Kd3 a5 Ke4 c5 f4 h5 b4 h4 g4 d6 e6 a4 g6 Kf6 e7 a3 e8B c4 c3 h3 b6 a2 b5 h2 b7 Rh4 g7 Nh6 g8R Na6 b8R Qb6 Qe2 Bd7 Na3 Ra7 Nf3 Be6 Rg1 h1N Nc2 Rh3 Bg2 Qa5 b6 Nc7 b7 Ra6 Nd2 Nb5 Bd7 Rg3 Bf3 Na3 Rb1 a1R Rb4 Rg2 Rc8 Nf7 b8B Qc5 Rc7 Nb1 Qf2 Ne5 Qg3 Kf7 f6 Nd3 f5 Rc6 Qe5 Ra8 Nb3 Qf2 Bg5 Qf1 Nd2 d5+ Kd4 Re2 Bh4 Ng3 g5 Bd6 Rg2 Nh5 Rg4 Rh2 Ke3 d4+ Ke4 Rh3 Ba7 Rc8 Bc5 Nb2 Bb6 d3 Bg1 Rg3 Bh2 Qf2 Rb8 Rg1 Rb4 Re1+ Be2 Ng7 Qf4 Nd1 Nf3 d2 Rg2 Rf8 Bc8+ Be7 Rg1 Ke8 f7+ Kd8 f6 Nh5 Ke5 Bd5 Kf5 Nb2 Kg6 d1R Kh7 Be6 Rg2 Bg4 Be6 Rd4 Nd2 Nd3 Bf5 Re8 f8Q Rcd6 f7 Rg6 Qg7 Rd7 f8N Bd6 Qe3 Qf1 Be6 Qf7 Qf4 Ke7 Qf2 Rc8 Bf5 Bf3 Ne6 Bg4 Ned4 Bf3 Rc6 Rdd8 Bd7 Bg4 Rc7 Bf3 Bf1 Bd1 Nb5 Re3 Be2 Re4 Be8+ Ke6 Bf3 Qf8 Rg4 Kf5 Bd7+ Ree6 Qe5+
r2bnr1B/4r2Q/1k2QNq1/1BRnp1P1/QP2b3/3b4/1Q1NbK2/1R2NRN1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 a5 c4 h5 g4 d5 f6 Kd7 b6 Kc6 g6 a4 g7 d4 g5 a3 f7 h4 b7 e6 f5 a2 f6 d3 Qa4+ Kc7 c6 h3 c5 h2 Kf2 d2 Bb5 d1B Nd2 Bf3 Rb1 Bd6 f8N a1R f7 Bd7 Ng6 Nh6 f8Q Nf5 g8N Na6 Nf6 Ne7 Qh6 Be2 Nh4 Rf8 Nhf3 Qe8 Qh7 Qg6 Ne1 Nd5 b4 Ra2 Bb2 Be7 b8R Bd8 Rb6 Kc8 c7 Ra1 Rd6 Kb7 c6+ Kb6 c8Q Nac7 Bc3 Ne8 c7+ Bc6 Qcd7 Bd3 c8Q Ra7 Qdf7 Re7 Qfg7 Ra3 Rd7 Bb7 Rc7 Ba6 Rc5 Be2 Bd7 Bad3 Bb5 Ra2 Nh3 Ra1 Rf1 h1B Ng1 Bhe4 Qd7 Nf4 Qd5 Ra2 Qdb3 Nd5 Qf7 Ra1 Qb2 Ra3 Nh5 Ra1 Bh8 e5 Nf6 Ra3 Qd1 Raa7 Qa4 Ra8 Qe6+
Q1b2bQ1/2Q2Kn1/1R5r/1P3RP1/NNRrN1bk/1p5R/1q2r1BB/3Qnb2 b - - 0 1 illegal: No proof kernel
1Q1n1rn1/3n3b/3n1RP1/1q1NNk1B/1BP2brQ/N1Rp4/4NRQ1/2R3bK b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 f4 Kf7 Kf2 a5 b4 d5 c4 e5 g4 h5 Kg2 d4 g6+ Kf6 b6 e4 b7 d3 g7 a4 b5 h4 b6 e3 c6 a3 g5+ Ke7 f6+ Ke6 f5+ Ke5 c7 e2 f7 e1B f6 a2 Bd2 Nh6 g8Q Bd6 f8N Ra4 f7 Kf5 Na3 Bc5 Ne2 Qe8 Nd7 Bg3 Qe1 Bg1 Ne5 Qb5 Bb4 Ra8 Rc1 a1N Rc3 Nd7 b8Q Nc2 b7 Bf4 Qf2 Rh7 f8R+ Rf7 Re8 Rg7 Re6 Nd4 Rh2 h3+ Kh1 Nc6 Qh4 Rg6 Rf2 h2 Bg2 Rg7 Bf3 Nd8 Bh5 Rg6 Qa7 Rg7 b8R Rg6 Qg7 Ng8 Rbb6 Rb8 Qb7 Ra8 Qh8 Rb8 Qg2 Bb7 c8N Be4 Rb7 Rg7 Nb6 Ra8 Qf3 Rb8 Nd5 Rc8 Kg2 h1N Rb8 Ng3 Rc1 Nf1 Kh1 Nd2 Rbb6 Nb7 Qg2 Rf8 Rc3 Nd8 Rb8 Bf3 Rbb6 Ne4 Rb7 Nd6 Ra7 Ndf6 Rf7 Bg4 Rf1 Bf3 Rfc1 Be4 Ra7 Rff7 Nb6 Nc6 Nd5 Nge7 Nb1 Nd7 Qb8 Nd8 Ra2 Rf8 Na3 Ng8 Rd2 Rg6 Rdd1 Rg7 Rf1 Rg6 Rf2 Rg7 Re7 Rg6 Rf7+ Ke6 Rf5 Rg7 Rf7 Bh7 Re7+ Kf5 Re8 Rg6 Re6 Rh6 Bf3 Rh5 g6 Rg5 Bh5 Rg4 Rf6+
2q2k2/2B1Qr2/3R1BPN/R3KB2/2p1RB1b/3N3Q/rnbrn1P1/3N1nnR b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 h5 Kf3 c5 Ke4 e5 d4 a5 f4 a4 b4 a3 d6 a2 f6 h4 b6 h3 b5 h2 d5 c4 d7+ Kf7 f5 Ra7 d6 Ra8 b7 Ra6 b6 Qe7 d8N+ Ke8 g6 Rh7 Nf3 Bd7 Ne1 Qe6 Nc3 Rf7 Bf4 Ba4 Qb3 Nd7 b8B Ne7 b7 Nb6 Bc7 Qc8 b8B Nc6 Nd3 Nd4 Nd1 Be7 d7+ Kf8 Be2 Ra7 Bg4 Ne2 Qa3 Bc2 Qb3 Rh7 Nf7 Na4 Nh6 Nb2 f7 Bh4 Bd8 Ra5 Bbc7 Rd5 Bf6 Rg7 Qb6 Rh7 Qe3 Rd6 Qh3 Rg7 Rb1 a1R Rc1 Ra2 Ra1 Rb6 Kd5 e4 Ke5 e3 Bg3 Raa6 Bf4 Rd6 Ra5 Rd4 Rf1 h1N Rg1 Nhg3 Rh1 Ba4 d8R+ Be8 Rb5 Nf1 Rd6 Ra2 Rc5 Ba4 Ra5 Rh7 B6g5 Kg7 f8R Bb3 Re8 Bc2 Ree6 Kf8 f6 Rg7 Bf5 Rf7 N3f2 Rd2 Nd3 Neg3 Re7 e2 Ree6 e1N Re7 Rh7 f7 Ne2 Bf6 Nf3+ Kd5 Qa6 Re4 Nfg1 Ke5 Qc8 Be7+ Kg7 Ng8 Kh8 f8Q Rf7 Qd8 Kg7 Nh6 Bg5 Qd7 Bh4 Bf6+ Kf8 Qe7+
R1nN1r2/BbB2r2/R4P2/2b1BRb1/RqQr4/N1p3Qk/4rP2/K2B2Qn b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 Kd7 Kd2 e5 Kc2 a5 h4 c5 b4 g5 Kb2 g4 f6 a4 b6 e4 d6 Ke6 b7 Kf5 b5 e3 d7 c4 h6 e2 h7 e1B d5 g3 d6 g2 b6 Ra6 h5 Qc7 d8R Ra7 d7 Qc5 h6 Bb4 Rh4 Qe3 Na3 Bbd6 Nh3 g1R Ng5 Qe8 Ne6 Ne7 Be2 Re1 Bf4 Na6 b8B Bc5 b7 c3+ Kb1 Qh5 Bfe5 Qg4 Re8 Be3 d8B Bg5 Bdc7 Nc5 Nd8 Ne4 Qc1 Ng3 Bd1 Rg8 h8Q Re2 h7 Nh1 Qg7 Qd4 Qf7 Qb4+ Qb3 Rh8 Ra2 Rg8 Ka1 Rh8 Rc4 Rg8 Rc5 Kg4 Qc4+ Kh3 Ra5 Rh8 Ra6 Rg8 Nb5 a3 h8R+ Bfh6 Ra4 Rf8 Rg8 Be3 Rg5 Bc5 Rf5 Bg5 Q1f4 Ra8 Ra6 Rf7 Ba7 Rb8 Qc1 Ra8 b8Q Bb7 Ra4 Nc8 Re6 Bd5 Rea6 Bb7 Ne6 Ne7 Qg8 Raf8 Nd8 Nc8 Q1f4 Re8 R4a5 Re4 Rd6 Bd4 Bab8 Bh6 Qg1 Bg5 Ra8 Bc5 Ba7 Rd4 Rb6 Ref8 Ra6 Qa4 Kb1 Qa5 Rb2 Qb6 Rb4 a2+ Kc2 Qa5 Na3 Qb5 Rba4 Qb4 Bf3 a1R Be2 Re1 Bd1 Qa5 Kb1 Re2 Ka1 Qb4 Qfg3+
1B1n1r2/k2B2BB/1r1R1pN1/N3R1nr/1b1R2QR/1Q4b1/3P1qP1/bb1KQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 e4 Kd7 b4 h5 e6+ Kd6 e5+ Ke7 b6 a5 b5 c5 d6+ Ke8 e7 Kd7 e8R a4 g6 a3 g7 c4 b7 h4 b6 Kc6 e6 a2 d7 c3 e7 c2 Na3 h3 Nc4 h2 Bd3 Nh6 g8Q Ra6 Bb2 c1B Bg7 f6 Nf3 Ba3 Nh4 Bd6 Bh7 Nf7 Ng6 Ng5 Na5+ Kb5 Qe6 Nc6 Qdg4 Bg3+ Kd1 Qc7 b8B Qf4 d8R Qf2 b7 Kb6 Qee4 Bf5 Rd4 Nd8 Qe1 Bd3 Rc1 a1B Rcc4 Bb1 Rd6+ Kb5 Rcd4 Rb6 Ba7 Ka6 b8Q Rc6 Qb2 Rb6 Bb8 Rg8 Qb3 Rh8 Rf1 h1R Rg1 Rh5 Rh1 Rg8 Rh4 Nde6 Rc8 Nd8 e8B Be7 Bd7 Rf8 Rdc6 Bb4 Rcd6 Nh3 Rc5 Ng5 Bc7 Ka7 Rf5 Ndf7 Re5 Nd8 Bb8+
B1Qn1B1n/1R4bQ/4QpBb/Qnr1R3/3PP1NN/4Rrbb/K6k/2B3q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Ke7 d4 a5 Kd2 g5 Kc2 c5 Kb3 g4 e6 Kf6 e7 Kf5 e8B c4+ Ka2 c3 b4 f6 h6 c2 b6 a4 h5 a3 b7 g3 h7 Kg4 d6 g2 d7 Kg3 h6 Bg7 b5 Ra7 b6 Ne7 Rh5 Nd5 Nc3 Nc6 b8B+ Qc7 d8Q Qe5 b7 Bf5 Qa5 Qc7 Nf3 g1B Bg6 Rc8 h8Q Nde7 h7 Bf2 Bg2 Bh3 Re5 Nd8 Nh4 Kh2 Qe1 Bg3 Ne4 Qd6 e3 Rc5 Nf2 Qa6 Bh1 Qf1 Bd6 Qg1 b8R Rb7 Qe8 Rb3 h8Q Rd3 Ba8 Rdc3 Bf7 Ng6 Qh7 Nh8 Bf8 Rd3 e4 Rb3 Rb7 Rf3 Bf4 c1B Qe6 Bd2 Bg6 Be3 Qc1 Bd2 Kb1 a2+ Kb2 Be3 Rb1 a1N Ka2 Nc2 R1b3 Bd2 Re3 Na3 Qcc4 Nb5 Qc8 Bc1 Q4e6 Bb2 Re1 Bc3 Bc1 Bd2 Re2 Bg5 Re3 B5h6 Ng4+
k5K1/rq1B1n2/3nP2b/b1R2Q2/R1bQN3/rnp2QB1/Qb2N1PN/R4R2 b - - 0 1 illegal: No proof kernel
R3b3/nR6/K2p1RP1/1RbNB1N1/2B1rN2/b1Q1b1r1/1nQPq1Qr/1k2N3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 hxg5 c4 exf5 c3 bxc3 Nf6 c4 Ng8 c5 Bg7 Nf3 Bh6 Ng1 Bf8 Ke2 Kf7 Kd3 e5 Kc4 h5 f4 a5 g4 h4 c6 h3 b6 a4 Kb5 a3 c4 d6 c7 e4 f6 Kg6 c5 e3 b7 a2 f5+ Kh7 g6+ Kh6 c6 Kg5 g7 Kf4 g5 Ke4 f7 h2 f6 e2 Bb2 Kd3 Nc3 Qe7 Nf3 Nd7 b8R Rh5 Ne4 Nc5 Be5 Rh4 Rb7 Bd7 c8N Ra3 Nb6 Be8 Nd5 Na4 Ka6 Nb2+ Qa4 Rb3 c7 Kc2 g6 e1B Neg5 Rg4 Bc4 Re4 c8Q Bf2 Rhb1 h1R Qh3 Bd4 Qg2 Bc5 Qc6 Qe6 Rb5 Be7 f8N Rh2 f7 Bf6 Rb7 Ne7 g8Q Nc8 Qh8 Na7 Qa4 Qe7 Nfe6 Bg7 f8R Bh6 Rf6 Ba3 Nf7 Be3 Nef4 Qe6 N7g5 Qg4 Nh4 Qe2 Qc6 Bec5 Qc8 Rg3 Nhf3 Nd1 R1b5 Nb2 Rh1 a1B Ne1+ Kb1 Qhh3 Rg4 Qc3 Rg3 Qc6 Rh8 Rhh7 Be3 Rhf7 Rh2 Rf8 Rh7 Qd7 Rh2 Qa5 Bf7 Ra8 Be8 R5b6 Bac5 Qda4 Ba3 Bb5 Nd3 Bc4+ B1b2 Rb5 Bac5 Bb3 Bc1 Qc3 B1a3 Bc4+ Nb2 Qac2+
R7/4r1B1/rPnNrNQ1/2B1rb2/qR1Qb3/4n2k/1p2PR1R/Q3KBbB b - - 0 1 illegal: No proof kernel
QnN1R3/1KQ1Q1r1/1PR3rP/b5Bn/kq2N3/1R2R2N/2p3rQ/nB2r2b b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Ke3 e5 Ke4 a5 h4 c5 b4 g5 f4 a4 d4 a3 h6 g4 h5 c4 b6 a2 h7 c3 f6 g3 f5 g2 b7 Nh6 f7 Ra6 f6 Ng4 d6 Kc6 d5+ Kb6 h6 Be7 f8N Qc7 f7 Ra8 d7 Qc6 d8Q+ Qc7 d6 Bd7 Kd5 e4 b5 Ka5 Nd2 e3 Rh3 e2 Ne4 e1N Ng6 Nf3 f8Q Ra6 Qd2 Rb6 Bd3 Bf5 d7 Ne1 Bb1 Ka4 Re3 Rg8 h8Q Qf4 Nh3 g1R Qh2 Nc2 Qc7 Rg2 d8R Bb4 Ne7 Ba5 Re8 Rbg6 Nc8 R8g7 Qfe7 Nf6+ Kc5 Nh5 b6 Nc6 b8R Bg4 Ra8 Bf3 Qg8 Nb8 Qd5 Rg1 Ra7 Bh1 Qa8 Qf7 Ra6 Qb3 Bd2 Qb4+ Kd5 Nd7 Ra7 R6g2 Kc6 Nb8+ Kb7 R2g6 Re2 R1g3 Bg5 Rg2 Re3 Nd4 Bc2+ Nb3 Rb1 a1R Rb2 Rd1 Bb1 Na1 Rb3 c2 Qc6+ Qb5 Kc7 Nd7 Qcd6 Qb4 Kc6 Ng3 Rc7 Nh5 Kb7 Nb8 Rc6 Re1 Qdc7
4nqR1/1r1rRB2/P5BQ/2Q1b1rQ/2Q1bP1k/BR1N1Rn1/n2rp2K/3N4 b - - 0 1 illegal: No possible last move
QQN3R1/K1b5/pB1q2N1/3P2n1/1RBnPnk1/r1rN1b2/8/Q1BBQb1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 g5 Kd4 f5 b4 c6 h4 a6 e4 f4 h6 f3 b6 g4 b7 f2 h7 g3 h5 g2 e6+ Ke7 Kc5 Kf6+ d6 Kg5 d4+ Kf6 e7 Bh6 e8B Bg5 d5 Bh3 d7 Qe7+ Kb6 c5 d8B c4 h6 c3 b5 c2 Ra4 Nc6 b8Q Bd2 Rb4 Kg5 Nc3 Bg4 Qe1 Ra7 Qa8 Bf3 Bh5 Nf6 Nge2 g1N Nf4 Ne2 Rg1+ Ng3 Nd3 Nd4 Na4 Bf4 Be2 Rf8 h8N f1B h7 Rc7 Ng6 Rc3 h8Q Qd6+ Ka7 Rg8 Ba5 Nh7 b6 Rgc8 b7 Ra3 b8Q Rcc3 Bg4 Nh1 Rg3 Nf6 Nb6 Nh7 Be6+ Kh5 Nc8 Be5 Qf6 Ng5 Bb6 Bf4 Bd7 Be5 Ba4 Bf4 Rh3+ Kg4 Rh8 Be5 Rg8 Bg3 Bf4 c1N Bb3 Bh2 Bed1 Nce2 Bc1 Be5 Bc4 Nf4 Rd8 Qe6 Qg7 Bc7 Rg8 Qc6 Qd7+ Qe6 Qa4 Qd6 Qa5 Rab3 Qa2 Ra3 Qa1
2K3b1/R4Q1p/3rrPNN/2b1B2R/1RNnQn1B/kq1BbPR1/2n5/bB6 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 e5 g4 c5 d4 a5 b4 e4 g6 e3 f6 a4 b6 e2 Kb5 e1B g5 a3 b7 a2 f3 c4 g7 c3 g6 c2 Nh3 Nd7 b8R Ra6 Bd3 Be7 Nf4 Ra7 Nd2 Nh6 g8N Ra4 g7 Ra7 Nb3 Nf7 Rh5 Qe8 Ng6 Rb7+ Ka6 Qf8 b5 Nd8 b6 Bd2 Qe2 Bg5 Nh6 Qg8 Na5 Bd2 Qe4 Qe8 g8B Bc3 Bg5 c1B Bh4 Qf7 Bb1 Rc7+ b7 Nf8 Ka7 Rd7 Ka8 Kc7 d6+ Kb6 d5 Nde6 Bd3 Rd8 d7 Bc5 d6 Nf4 Bb1 Qb3 Bc4 Re8 d8R N8e6 d7 Nd4 Bcd3 Re6 Rg8 Be3 Rg7 Rhe8 Rg8 R8e7 d8Q+ Rc7 Qd6+ Rc6 Qd7 Rcd6 Qf7 Bd7 Ne5 Bb5 Rg3 Bc4 Ng6 Kb5 Rc8 Kb4 b8B Rd5 Be5 Ka3 Rb8 Rdd6 Rb7 Bb2 Kb8 Bd5 Kc8 Bc4 Bbc2 Bc3 Rb1 a1N Ra7 Bd5 Rb2 Bc4 Bb1 Nac2 Ba2 Bd5 Rb1 Ba1 Rb2 Qc4 Rb4 Qb3 Bb1 Re7 Qe8 Bg8 Qf7 Ree6 Nc4+
q3BQNN/b2n1KPN/Q2B4/rb1BQ3/1Rb1n2k/1p4B1/1bP2R2/1N1n1r2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Ke3 h5 Kd4 b5 Kd5 e5 f4 d6 g4 e4 a4 b4 g6+ Kf6 c6 b3 g5+ Kg7 c7 e3 a6 h4 a7 h3 a5 e2 a6 e1B Qh5 h2 Bb5 Bc3 Ra4 Bd2 Nh3 Bb4 Be8 Ba5 Rb4 Rh6 f6+ Kh8 f5 Bd7 c8N Qe7 f7 Kg7 Rf1 Bb5 Bf4 Qc7 Ke6 h1B Rf2 d5 Bg3 d4 Ne7 d3 Qe2 d2 f6+ Kh8 g7+ Kh7 Ng6 d1N Qh5 Qb7 Nh8 Bc5 f8B Nd7 Bfd6 Be4 Qe2 Bed3 Kf7 Bdc4+ Qe6 Rh4 g6+ Kh6 Ng5 Rh1 Nh7 Rf1 Qd5 Bd4 Qe6 Bb2 Qd5 Rb8 a8Q Bb6 a7 Rc8 Qe6 Kh5 Qb8 Qe4 a8B Rc5 Bd5 Ba7 Qe5+ Kg4 Qc8 Kh3 Qa6 Qh1 Ke6 Qf3 f7 Ngf6 f8Q Ne4 g8N Qg2 Bh2 Kh4 g7 Ba4 Nf7 Ra5 Nh8 Bab5 Kf7 Nec3 Be6 Qa8 Bd5 Ne4 Bg3+
R4RN1/rb4Pn/6n1/2PBq3/Qb1R4/2nbrpB1/R1QKN1nN/N2Q3k b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 c4 Ke7 e4 Ke6 g4 h5 b4 f5 g6 a5 c6 d5 c7 h4 g5 a4 g7 h3 g6 h2 b6 a3 b5 f4 b7 a2 b6 d4 Kd2 f3 Na3 d3 Nc2 Bd7 c8Q Nf6 g8N Qc7 g7 Nh7 Ne2 Nc6 b8R Ra7 b7 Ne7 Ra8 Ng6 b8R Qd6 Rg1 h1B Rg4 Bg2 Ba3 Qd5 Bd6 Bh3 Qc7 Bc6 Rf4 Be7 Rbf8 Bb7 Qc6 Bf5 c5 Bf6 Qa4 Bd8 Qb3 Ba5+ Qc3 Bb4 Bh3 Kd7 e6+ Kc6 e7 Qe5 e8N Kb5 Ke3 d2 Nef6 Kc6 Ng4 Kd7 Qc1 d1N+ Kd2 Ke6 Bf1 Nf6 Nh2 Nh7 Rb1 a1N Rb2 Nf2 Ra2 Nd1 Na3 Nc2 Qa1 Qf6 e5 Nce3 Rd4 Bd3 Nc2 Kf5 e6 Ng2 e7 Kg5 e8Q Qe5 Qa4 Kh5 Ng4 Kh4 Nh2+ Kh3 Qc1 Ba3 Qcb3 Nc3 Qd1 Bb4 Qc4 Bbe4 Na1 Bb7 Ng1+ Kg3 Qcb3 Kf2 Qbc2 Kg3 Ne2+ Kf2 Nc1 Kg1 Ne2+ Kh1 Bc7 Ng5 Bb8 Rh4 Bc7 Re4 Bd6 Nh7 Bc7 Qd5 Bb8 Re3 Bg3 Ne1 Bh3 Qe4 Be6 Qe5 Nf1 Ng2 Bf7 Bba6 Bd5 Bb7 Nh2+
2r1rQ2/bb3P2/1kQNq1rR/1pr1R3/B1B5/B2n1QN1/2RKP2n/B3n2Q b - - 0 1 illegal: No proof kernel
2bN1r2/1rR2p1K/Q3b2R/2QPnP1B/b2Br1NQ/1B4q1/1rn5/B1Nk3Q b - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 d5 dxc5 b5 a4 d4 axb5 d3 e3 Bg7 Ra4 Bd7 Ra1 Bd4 exd4 Bc8 Kd2 Kd7 Ke3 Ke6 Kf4 Kd5 b4 Kc4 g4 a5 g6 h5 Kg5 a4 f4 a3 b6 a2 g7 h4 b7 h3 f5 h2 c6 Qd7 c7 e5 d5 e4 b5 e3 b6 e2 Nd2+ Kc3 Nb3 e1R Bb2+ Kc4 Nf3 Ra6 Nc1 Qa4 Bd4 Qd7 Ne5+ Kb4 c4 d2 c5 Ra4 c6 Rh7 Bc4 Rh8 Bb3 Ne7 g8Q Ra5 Qh7 Qe8 Kh6 Ng6 g5 Ra7 Ng4 Na6 b8N Re5 b7 Be6 c8Q Re4 c7 Ne5 g6 Rf8 g7 Qa4 g8B Qa3 Qf3 d1B Kg7 Be2 Qh4 Bb5 Qfh3 Bbd7 Kh7 Ba4 Rb1 a1R Rb2 Bad7 Rc2 Ra2 Ba1 Rb2 Nc6+ Kb5 b8B Rb7 Rc3 Nb4 Ba7 Nc2 Nd8 Kb4 Bd4 Ba4 Qa8 Bad7 Qa6 Bc8 Rg1 h1B Rc5 Bcd7 c8Q Bf3 Qh1 Bd1 Qc7 Bc8 Rg2 Be2 Rh2 Bb5 Rc6 Ba4 Rh3 Bed7 Rh6 Be6 Rc3 Rb5 Qca7 Rb8 Rc7 Rb7 Bc5+ Kc3 Bd4+ Kd2 Qc5 Rb6 Kg7 Rb7 Bh7 Nc6 Bg6 Ne5 Bg1 Kd1 Kh7 Rbb4 Bh5 Rb7 Bc4 Qd3 Bb3 Qg3 Bd4+
1NRn2KN/1bQP2b1/RN1kN1p1/Q3R2r/1rn1r1RB/n2q1B2/3PQ3/5n2 b - - 0 1 illegal: No possible last move
1NBb1B2/B1RPnpNQ/N1rQ3b/2r2P1R/R6N/rn1n1R2/7r/1K3kq1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 e4 Kd7 d4 Na6 d6 Ke6 d7 Kd6 Be2 Nb8 Bd3 Ke6 Bf1 Kd6 d5 Ke5 d6 Kf6 Bh6 Bb7 Bc1 Bd5 exd5 Qe8 Na3 Qc8 Nb1 Qd8 Kd2 Kg5 Kc2+ Kh4 f4 a5 b4 c5 h6 e5 b6 g5 b5 g4 f5 g3 b7 g2 h7 c4 b6 a4 Bh6 c3 Ba6 a3 Nf3+ Kh3 Rf1 g1N Nbd2 Kg2 h4 e4 h5 a2 Nh4+ Kg3 Rf3+ Kh2 Nb3 e3 Nc5 Qf6 d8N e2 d7 e1R d6 Qg6 Nde6 Ne7 d8R Re5 d7 Nh3 Qd6 Nf2 Ng7 Nd3 Rc8 Qg1 Rc7 Nbc6 b8B Na5 b7 Nb3 Ba7 Kh1 b8N Re6 Rd1 a1B Kb1 Rg6 Bc8 c2+ Ka2 c1R Nca6 Rc4 Kb1 Rc5 Re1 Bc3 Rc1 Be1 Rc4 Re6 Ra4 Ba5+ Bc1 Rg6 h6 Rf6 Qd5 Rfc6 Qd6 Qg4 Ba3 Kg1 Rb7 Bd8 Rc7 Rg8 h8R Qg2 Re3 Kf1 h7 Qg1 Rf3+ Ke1 Ne8 Rg2 Ng7 Rf2 Rg8 Rh2 h8Q Nf2 Qh7 Kf1 Ne8 Bh6 Rg5 Ke1 Ng7 Nd3 Rfg3 Kf1 Rh5 Bd2 Bb4 Bh6 Rf3+ Qf2 Qdg6 Ndc1 Ra2 Rb5 Nc5 Nd3 Bb6 Nd5 Ra1 Ra4 Nca6 Rba5 Bf8 Ne7 Qd6 Rac5 Ba7 Ra2 Rg3 Qg1 Re3 Rad2 Ra5 Ra2 Ra4 Ra3 Rf3+
3b1KRB/2P1RN2/1rpr1N2/1Q1q4/2b1bR2/NB1Bn1PQ/B2k3n/R2b1n2 b - - 0 1 illegal: No proof kernel
r1N1NnbB/B1Pp3R/2r3Bq/2b1NR2/2RP3Q/krn2r2/2R1BQ2/5b1K b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 hxg5 c4 exf5 c3 bxc3 Nf6 c4 Ng8 c5 Bg7 Nf3 Bh6 Ng1 Bf8 f4 h5 Kf2 a5 g4 e5 Kg2 Ke7 c4 h4 g6 a4 b6 a3 g5 a2 c6 Kd6 g7 Kc5 g6 Kb4 b7 e4 f6 e3 f7 e2 c5 e1R f5 Rh7 f6 Ra5 Nf3 Bd6 f8Q Re8 f7 Be5 Bb2 Rb5 Nc3 Qa5 Ne4 Qa6 Nd6 Rb6 Qe1 Re7 Ne8 Bd4 Rc1 a1R Rc2 Nf6 g8R Re3 g7 Rh6 Qe7 Rc3 f8R Nh7 Rf5 Nf8 Qf2 Ka4 Rh8 Rbb3 g8B Qb6 d3 Na6 b8B Nc7 Bh7 Nb5 Rg8 Kb4 Rg4 Ra8 Ba7 Ba6 Rh3 Rg6 Kh1 Ka4 Ba1 Ka3 Re4 Rg3 Qd8 Rc4 Bc3 Be3 Bh8 Nc3 Ne5 Rf3 Qe7 Rd4 Ref4 Rd6 Rb4 Bc4 Be2 Bg8 Rc4 Rh6 c7 Qg6 c6+ Bc5 c8N Qd6 Rh2 h3 Kg1 Qe6 Rh1 h2+ Kg2 Qf6 d4 Qh4 c7 Rc6 Bg6 Qh7 Rf1 h1B+ Kg1 Qg7 Kh2 Bg2 Rh1 Qh7+ Kg1 Qg7 Rh7 Qh6 Qeh4 Bf1 Kh1
n1n5/BPBqN3/KQRn4/2BrQp2/k5r1/4PrR1/b1Q1n1B1/bQN4R b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 d4 a5 Kd2 f5 Kd3 g5 Kc4 c5 h4 a4 e6+ Kc7 h6 Kb6 e3 g4 e7 g3 e8R g2 h7 a3 d6 a2 h5 Na6 d5 Bg7 h6 Bd4 d7 Qc7 d8Q Bb7 d6 Ra7 d7 Bb2 Re6+ Bc6 Nc3 Ne7 Qc2 Ng8 Nge2 g1N Bg2 Ne7 Rg6 Rb7 Rg3 Rg8 h8Q Nf3 h7 Nc8 Qe5 Nd4 h8B Rg4 Qdf6 Qd6 d8B+ Nc7 Qh6 Qd7 Nd5+ Ka7 b6+ Ka6 b5+ Ka5 Bg7 Na8 Bc7 Bc3 Rb1 a1R Ba3 Bb2 Rbg1 Rf1 Ne7 Ba1 Nc1 Rf3 Re1 Ra7 Qhe6 Ra6 b7+ Rb6 b8Q Bd5+ Kd3 Ba2 Rh6 Nd6 Reh1 Nc6 Qeb3 Na7 Qbb1 Nac8 Bf8 Qe8 Bb2 Qd7 Bd4 Bb3 Re6 Ka4 Qb7 Ra6 b6 Ra5 Qb8 Rb5 b7 Ra5 Rg6 Rb5 Qa7+ Ra5 Qb6 c4+ Ke2 c3 Kd3 Nf7 Rc6 Rb5 Qcb2 c2 Qc3 Ba2 Qd2 Rb3+ Kc4 Rd3+ Kc5 Ka3 Kb5 Nfd6+ Ka6 Ka4 Nb3 c1N Qdc2 Ne2 Nc1+ Ka3 Q6b5 Rd1 Ba7 Rd5 Qb6 Bb3 Ng8 Ka4 Be7 Nb5 Bc5 Nbd6 Qd3 Ba2 Ne7 Nc4 Qd2 N4d6 Qdc2+
R3Q1N1/BP4Pn/1Nnn4/Q2rRp1k/3bN1nb/4QN1B/2bK2R1/qR5r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 a5 b4 f5 e4 Kf7 d4 Kg6 e6 c5 e7 h5 e8R h4 d6 h3 b6 c4 d5 a4 b5 a3 e5 a2 b7 c3 b6 c2 d7 h2 d6 Be7 e6 Rh4 Nf3 Na6 b8N Nh6 b7 Ng8 Qd2 Bf8 e7 Nb4 Qe3 Qa5 d8R Be6 d7 Nc6+ Nbd2 Bb3 Bh3 Nf6 Rb1 a1B Rg1 h1N Rg2 Ng3 Ba3 c1N Bc5 Bd1 Ba7 Bd4 Rc8 Ba4 d8Q Nh7 Nd7 Bc2 Nb6 Qa1 Ne4 Nd3+ Kd2 Nde5 Qd5 Bg7 Qa5 Bf6 Rcd8 Rc8 Rd5 Rc7 Ra8 Rd7 Rc5 Rd5 e8Q+ Nf7 Rcb5 Nh1 Rc5 Nf2 Rcb5 Kg7 g6 Nd6 Rc5 Bg5 Rcb5 Kh6 g7 Nf7 g8N+ Kg6 Qd7 Nd6 Qc8 Bgf6 g5 Kh5 g6 Ng4 g7 Nge5 Rg6 Ng4 Qe8 Be7 Bg2 Rh1 Bh3 Bh4 Rc5 Nf7 Rcb5 Rd6 Re5 Rd5 Qc8 Nd6 Qd8 Nh2 Rg2 Ng4 Qe8+
Q1Q1R1R1/Kp1N4/1P1N3N/7R/1q2Nb2/1Br1b1B1/nQ1Pk1rn/1nR1nb2 b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 d5 c4 a4 cxd5 a3 Qa4+ Bd7 Qxa3 Be6 Qa7 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kg4 h4 g5 f4 e5+ d6 e4 a4 e3 b4 e2 b5 e1B h6 c6 f6 Qe7 Kb6 c5 h5 c4 d7 c3 d8Q c2 a5 Nc6 f5 Qe2 h7 Bb4 f7 Kf4 f8R g4 h6 g3 a6 g2 f6 Qe4 f7 Bc3 Na3 Qd5 Re8 Na5 f8N Bb2 Nc4 Bg3 Nd6 Bh3 Qc8 Qb3 Bc4 Qb4 Nf3 g1N Ng5 Nf6 Bb3 Rg8 h8N Bf1 h7 Nf3 Rh5 Ng4 Nd7 Ne1 Nge4 Kf3 Nhf7 Ke2 h8R Nh2 Nh6 Bf4 Qab8 Bg7 Ba3 c1N a7 Na2 Rc1 Bb2 Qc3 Rg2 Rhg8 Ba1 Qd8 Rc8 a8Q Nc4+ Ka7 Bb2 Qcf6 Bd4+ b6 Bde3 Qb2 Rc7 Qdc8 Rc5 Qc3 Rc7 Bb2 Na3 Qc2 Rc4 Be5 Nb1 Qb2 Rc5 Bf6 Rc6 Bh4 Rc3 Bg3
R2n1Q2/P2N1b2/3Q3b/rQq2Nb1/1PN1RnN1/k3n1B1/1pBR2Q1/1K1n3r b - - 0 1 illegal: No proof kernel
Bb3KR1/P1B1rP2/3Q4/qr1n1k2/2NnprRR/3Qn2B/RN1Qb3/1rB5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 g5 Ke4 b5 Ke5 c5 f4 c4 h4 g4 a4 c3 d4 g3 a6 c2 a7 b4 f6 b3 f5 e6 f7 g2 f6 b2 a5 Rh6 d6 Rg6 d5 Bb7 a6 Qb6 h6 Qc6 h7 Bh6 h8R Qc5 f8Q Qc6 h5 Rg3 f7 Rc3 Nh3 g1N Nf4 Qa4 Ra2 Qa3 Nd3 Nf6 Qd2 Rc5 Rh4 Nh3 Rg8 Qa5 Rhg4 Nf2 Bh3 Rb5 Na3 b1R Nb2 Nd1 Nac4 Ne3 Qd3 Bg5 h6 Bc8 h7 Bf4+ Kd4 Bh2 h8R Bg3 Rhh4 Bf4 Bd2 c1R Qh6 Rc2 Bc1 Rf2 Qd2 Bg3 Qg6 Rf4+ Ke5 Ne4 Qf5 Nc3 Kf6 Nc6 Kg7 Nd4 Qfd3 e5 Kf8 Rab8 a8B e4 a7 Ba6+ Kg7 R8b7 Kf8 Kd8 d7 Bh2 Kg7+ Ke7 d6+ Ke6 d8Q Ncd5 Kf8 Re7 d7 Kf5 Qb6 Rf1 d8B Bb8 Qd6 Rf4 Ne5 Rb4 Bc7 Bb5 Qa3 Be2 Qad3 Rb5 Nec4
rR2qB1n/1B3Q2/B6r/3b3N/4qPKp/2Qb2nP/1NNb1QR1/b1BQ3k b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 c4 Kf7 f4 d5 Kf2 g5 Kg3 a5 e4 h5 h3 g4 c6 d4 b6 d3 c5 a4 c7 a3 c6 a2 b7 d2 e6+ Kf6 e5+ Kg7 f6+ Kh6 e7 Bd7 c8Q Na6 b8Q Nc5 e8Q Be6 f7 Ne7 c7 Bd5 e6 Ng6 e7 Rh7 Bg2 Nh8 Qa7 Ne4+ Kh4 g3 Ne2 Kg6 Nbc3 Rh6 Rb1 a1B Na4 Kf6 Qed7 Qe8 Nb2 Bg7 Bf3 g2 f8B g1Q Qf2 Qe1 Rg1 Ng3 Nd4 Qe4 Rg2 Kg6 Nc2 Bc3 Be2 Ba5 Ba6 Bb4 Qde1 d1B Qef1 Bf3 Qd1 Bd2 Bb7 Be2 Ba6 Qf7 e8N Bd3 Nf6 Qfe6 Qf7+ Kf5 Qce8 Qe7 Qc6 Qe8 c8B+ Q4e6 Ng4+ Ke4 Bcb7 Qe5 Qcc5 Qd4 Kg5 h4 Qc3 Qe3 Qfg1 Qe2 Nf6+ Kf3 Nh5 Nf1 Rg4 Ng3 Qe3+ Kg2 Qb6 Qf1 Qbd4 Kh1 Qf2 Ne2 Rg2 Ng3 Kg4 Qfe1 Nc4 Qe4 Rb4 Qe8 Nb2 Qe4 Rc4 Qe8 Rc8 Qe4 Rb8 Qe8 Qdf3 Q1e4 Qd1+
n3R1QN/2n5/NR2B3/r1nb1N2/BBP4r/q2q3Q/kb1PpR2/3n1RKN b - - 0 1 illegal: No proof kernel
2R1K1bk/NR2BB2/rRr3Q1/q2Q3P/r3Bn2/3r4/NPp1qB1b/1N4Rn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Ke3 a5 Kf4 f5 d4 Kf7 h4 g6 e4 Kg7 e6 g5+ Ke5 g4 e7 f4 e8B a4 h6+ Kh7 h5 g3 b6 a3 b7 a2 d6 g2 d5 c4 d7 f3 Ke6 f2 Kf7 c3 d6 c2 e5 Ra5 e6 Ne7 Qd5 Ng6 e7 Na6 b8R Qc7 d8B Rg8 d7 Bb7 Bd3 Nb4 Ne2 g1R Be3 f1Q+ Bf2 Kh8 h7 Ra4 Nc1 Rg3 Rg1 Qa5 Be4 Rd3 Rc8 Ba8 Rc6 Bg7 Rb6 Nf4 Rb7 Bf8 Rg6 Bh6 Rgb6 Rg7+ Kf8 Qe2 Bf7 Rg6+ Ke8 Bg7 Be1 Be5 Bf2 Kg7 h8R Rc6 Na3 Bb8 Rb1 a1R Na2 Rdc3 Rd1 Nbd3 Nb1 Rb3 Be3 Nf2 Rg1+ Rg6 Bc5 Nh1 Bf2 Rba3 Bc7 Rc3 d8N Rd3 Bd6 Bc7 Nc6 Bb8 Rf8 Bc7 Bg8 Kh8 Na7 Rf6 Kd7 Rh6 e8Q Rg6 Be7 Rc6 Qg6 Be5 Rc7 Bb7 Rd8 Bc8+ Ke8 Be6 Rcb7 Bc7 Bh7 Bg8 Rc8 Qae1 Qgf5 Ra6 Nac3 R1a4 Qfe6 Nh3 Na2 Bh2 Bhg6 Qa5 Bf7 Nf4 Qg6
2Kb4/BQ2q2r/Q1Q2qNR/3RPk2/NnB1b1rP/3bn1bN/N3QpB1/8 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 g5 b4 a5 e4 f5 c6 g4 b6 d5+ Kb5 g3 c4 a4 h6 d4 h7 f4 c7 a3 c5 d3 c6 a2 b7 g2 Kb6 d2 b5 f3 Qe2 d1B Nh3 g1B+ Be3 f2 Nc3 Qd3 Bg2 Be7 Na4 Na6 b8Q Qa3 Qb7 Bb3 Rd1 a1Q Rd5 Bd7 c8Q Q1a2 c7 Kf7 e6+ Kg6 e5 Bb4 e7 Nf6 e8B+ Kf5 Bf7 Bc2 Bc5 Rg8 h8N Rg4 Ng6 Be4 Qc6 Bc3 Kb7 Ba5 Ba7 Qe7 b6 Nb4 Qb8 Qb3 c8Q Qf3 Kc7 Qf4 Qca6 Qf3 Qbb7 Rh8 Bg8 Rh7 Bf7 Be8+ Kc8 Qf4 Rd8 Bd3 Bc4 Nfd5 Rd6 Ne3 Rd5 Nf1 Qa8 Ne3 b7 Qfg5 b8N Bd8 Qa6b7 Qgf6 Na6 Nbc2 Nb4 Be4 Na2 Nb4 Nhf4 Bd3 h3 Bh2 Qba6 Bg3 Q8b7 Qfg7 h4 Bf7 Nh3 Qgf6 Rd1 Be4 R1d4 Bd3 Rd6 Bd5 Re6 B5e4 Rd5 Qeg7 Nf8 Qfe7 Rh6 Qgf6 Ng6
2N2R1q/r1b4q/1b6/Q1pB3k/2PQrB1n/1R3PB1/N1Q2B2/Nn1nN1Kn b - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 g5 a4 f5 axb5 Bb7 h3 Bf3 gxf5 g4 Nd2 g3 Nb1 Bg4 hxg4 Qg5 Rh5 Qe7 Rh1 Qd8 e4 Kf7 b4 h5 c4 d5 b6 c5 b7 a5 b5 g2 b6 a4 g5 h4 f6 Kg6 e6 a3 e7 h3 e8Q+ Kh7 f7 Kg6 e5 h2 e6 a2 e7 d4 Nc3 d3 Qea4 Na6 e8Q Nf6 b8B Rh6 b7 Ne4 Qac2 Qc8 Qb5 Qd8 Bbf4 Rh3 b8B Qc7 Bce3 Qe7 Qa5 Qd8 Nf3 g1N Bg2 d2+ Kf1 Bd6 f8N+ Kh5 g6 Bc7 g7 Bb6 g8N Nb4 Ne7 Nd5 Ne1+ Nf3 Ne6 Rh4 Nd4 Qh8 Nc8 Ra7 Rb1 a1B Na2 Ndc3 Rb3 Nb1 Bg3 Rg4 Bbf4 Nh4 Bf3 Nec3 Bd5 Bb2 Rg1 h1N f3 Qh7 Bef2 Bc1 Qe2 d1Q Qee4 Qd2 Rg2 Nd1 Kg1 Qc3 Bb8 Ne3 Qd2 Qd7 Bge5 Kg5 Ndc2 Kh5 Na1 Nd1 Qec2 Re4 Rg8 Qh7 Beg3 Qch8 Qd4 Bf4 Rf8 Bd6 Bc7 Bf4 Bd8 Be5 Bg5 Bec7 B5f4
1BB1Bb1N/1Q1br3/qQ6/rP5R/NKn2RQ1/R1p3P1/1B1k1n1r/2Q2r1q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 c5 d4 h5 Kd2 e5 Kc3 a5 b6 h4 d6 h3 g3 h2 d7 a4 d5 a3 d6 a2 f6 Kg6 b5 Kf5 b7 Ke4 f7 c4 g6 Rh6 f5 Qg5 d8Q Rh7 f6 Qh6 d7 Qg7 Bb2 Ke3 Bh3 e4 Qb6+ Bc5 f8R Ra4 d8Q Nc6 b8B Nce7 Qdc7 Bd7 Ne2 Nh6 Nf4 Ng4 Qcb7 Qh6 g7 Ng6 g8B Nf2 f7 Ne5 Ng6 Ra5 Qc1+ Ke2 Nh8 e3 Nd2 Qg6 Nb3 Be7 Nc5 Qc6 Rc8 Bf8 Kb4 c3 Re8 Nc4 Re4 Rh4 Rf4 Qd6 Bh7 Qf6 Bg6 Rh7 Rd1 h1Q Rd5 Qc6 Be6 Rh2 Rh5 Qc8 Bd6 Qa8 Na4 Qa6 Bef5 Bc6 Bc8 Bd7 Qb1 Kd2 Qf5 e2 Qg4 Bh6 f8Q e1R Be8 Re7 Bb8 Bg7 Qg8 Bh6 Q8g5 Bf8 Rf1 a1R Re1 Rc1 Rg1 Rc2 Ra1 Rc1 Ra3 Rce1 Q5f5 Rd1 Qb1 Rf1 Qc1+
q7/B1Q3n1/1Qbb1b1P/1BQn1p2/4B3/KNR1bQ1R/2BP2rq/1NR3kr b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 Kd7 b4 c5 e4 f5 d6 Ke6 b6 g5 d7 a5 b5 a4 h6 a3 b7 c4 b6 g4 h5 a2 h7 c3 h6 g3 Rh3 g2 Ba3 c2 Nf3 g1Q Nd4+ Kf7 e6+ Kf6 e5+ Kg5 e7 Kf4 e8B c1B e6 Qdg5 d8R Bc5 e7 Bb2 Nb3 Qf6 Bc6 Bd6 e8B Qf8 Bc5 Qh2 Bd3 Bd4 Bce4 Nc6 b8Q Be3 b7 Nf6 Ba7 Nd5 Bc2 Rg8 h8Q Rg2 Qc7 Bd7 b8Q Nd4 Qbb6 Bc6 Rc8 Ne6 Qhd4 Ng7 Qdc5 Rb8 Qh5 Qh8 Kd1 Qf8 Rh4+ Kg3 Kc1 Kf2 Kb2 Kg1 Rh3 Rb7 Ka3 Qh8 Qcf7 Re7 Bd7 Re5 Rc7 Qa8 Qf3 Re6 Rc8 Reg6 Be8 R6g4 Qfc7 Rf4 Qe2 Rf1 Qf3 Rd1 Nc3 Rf1 Rc1 a1B Nb1 Bf6 Bd1 Bb7 Bb5 Bc6 Rc3 Re1 Bdc2 Rd1 Qg4 Kf2 Qh5 Rh1 Qf3+ Kg1 Re8 Bed4 Bed3 Rf2 Re2 Be3 Re1+ Rf1 Rc1 Re1 Bd1 Re2 Be4 Rg2 Bdc2#
2b1knqB/1R1Qr3/3R1p2/5BRn/1R2P1Bb/QPQb4/q6r/1QN1NbK1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 d5 c4 h5 g4 a5 e4 d4 b6 d3 c6 a4 b7 d2 e6 h4 c5 h3 b3 h2 g6 a3 c7 a2 e7 Ra5 g5 Bh6 c6 Ra7 g7 Bd7 c8Q Ra6 g6 Bh3 c7 Bg4 Ne2 Nf6 g8Q+ Bf8 g7 Ra7 Bh3 Nbd7 b8R Rb7 Qf1 d1B Na3 Bc2 Bb2 Bf5 Re1 a1Q Bg4 Qa2 Rd1 Be6 Rd4 Bd3 Rd6 Rh3 Qh7 Rh4 Nc2 Rh6 Qb1 Rh3 Rc1 h1B Ne1 Bg2 Kg1 Nh5 Rc4 Bf1 Nc1 Rh2 Qf5 Ra7 Qa5 Bf5 Qca6 Rb7 c8Q Nc5 g8R Nd7 Bh8 Ra7 Rgg6 Bh6 Qac7 f6 Qa3 Kf7 Rcb4 Qg8 Qc3 Bg5 e8B+ Ke7 Bf7 Nf8 Be6 Bh4 Rg5 Rc7 R8b5 Rb7 Q8c7+ Ke8 Q7c6+ Rd7 Qc7 Re7 Rb7 Bg6 Bc8 Bf7 Bcf5 Be6 Q7c6+ Bd7 Qc7 Bc8 Qd7+
R1R2q2/5B1N/KPQB2q1/1Q1N2B1/2n2Qb1/1pr2k1r/2nP3Q/1NNqq1b1 b - - 0 1 illegal: No proof kernel
1qRn1Q1r/1b4q1/qp2Q2P/2B2Nq1/1Pr1n2N/1Q4Bk/2QNK1B1/2R2N1b b - - 0 1 illegal: No extended proof kernel
n3q1Br/2b3QN/1p1rqPB1/2N3NR/Q1b2k1N/3B1P1R/5Q2/2n1nnBK b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 a4 Kd6 h4 g5 f6 e5 h6 c5 h5 c4 h7 c3 a6 b6 h6 c2 a5 g4 a7 g3 a6 g2 f3 e4 Kf2 Be6 Rh5 Bg7 Be3 c1N Nh3 g1N Kg2 Qe7 Nd2 Nd3 Nb3 Ne5 Ng5 Nec6 Kh1 Qb7 Bd3 Ne2 Nc5 Bf7 Qa4 Nc1 Bg1 Kc7 d6+ Kd8 d7 Kc7 d8N Kd6 d5 Ke5 d6 e3 d7 e2 Ra2 e1Q Rah2 Bc4 Nde6 Bf8 d8Q Nd4 R2h3 Bd6 Nf8 Kf4 Qc7 Be5 Qg7 Bc7 Bg6 Ne7 Bd3 Rg8 h8Q Qbe4 Nfh7 Rd8 Qhg8 Q4e2 Qe6 Qa2 Qe2 Nd5 Qf2 Rd6 Bg6 Qe8 Bd3 Nbc6 Bg6 Rad8 a8B Ne5 a7 Ne3 Bae4 Nb5 a8B Ned3 Bad5 Nf1 Bg8 Ne1 Bd3 Qae2 Nf8 Q2e6 h7 Bb8 h8N Nc7 Nfh7 Na8 Nhf7 Bc7 Nh6 Qb5 Nf5 Rf8 Nh4 Qbe8 B8f7 Rh8 Bg8
N1RB2n1/1NN2r1Q/p1q3BQ/2bR4/RP4K1/1R1r1B2/b2kq1Pr/3nr2B b - - 0 1 illegal: Other
N1n4q/b1R4P/n1B3QK/1QN1qR1N/2n1kp2/N3P3/1Br1rB2/3RR1nb b - - 0 1 illegal: No possible last move
r1n2KNR/7P/1NR4n/8/QQq1pBBr/1Q2P1qq/1R3q1k/bbR2BB1 b - - 0 1 illegal: No possible last move
2b5/N3bnP1/NBq2b2/1Qp1R1Qr/1P1N3q/bBRB1r2/3BK1Q1/kN1n4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 b4 e5 f4 a5 d4 h5 b6 c5 d6 e4 g6+ Kf6 d7 h4 d5 h3 g5+ Ke7 g7 Kd6 g6 e3 f6 a4 f7 e2 f5 Ke5 b7 h2 f6 a3 d6 a2 Qa4 Kd4 Bd2 Nc6 b8N Rh5 Na6 Ra7 Nf3+ Kd3 Qb5+ Kc2 Nd4+ Kb2 Rg1 h1Q Rg3 Qe4 Rc3 Qb6 d8N Be7 f8Q Rc7 f7 Ne5 d7 Nf6 g8B Nd5 g7 Ne3 N8c6 Nd1 Na7 Qbc6 d8B Rb7 Bb6 Qh4+ Rg3 Rd7 Qd8 Rd6 f8Q Rf6 Bf7 Rf3 Bb3 Nf7 Qd5 Bf6 Qg5 Be7 Qd8 Bf6 Qdd5 Be7 Na3 Bf6 Rc1 a1B Nb1 Be7 Rc3 Bf6 Be3 Be7 Kd2 e1B+ Ke2 Bd2 Bf4 Bc1 Bd2 Rf4 Qg2 Rf3 Ba4 Ka2 Re3 Bab2 Re5 Ka1 Bb3 Ba3 Rh3 Bcb2 Rg3 Rf5 Rge3 Rf3 Rc3 Rh7 Ne6 Rf6 Rf3 Nh8 Ree3 Bd7 Kd3 Rh5 Re2 Be5 Nd4 Nf7 Re1 Rf5 Ree3 B5f6 Re5 Bc8 Rh3 Nb2+ Ke3 Rf2 Bfc4 Rf4 Ke2 Nd1 Rc3 Rf3 Bd3
1R1N1rk1/2r1pq2/B1b3R1/BQ3B2/1P1R1K1b/2bQ2P1/2nR1b1Q/N2q1Bn1 b - - 0 1 illegal: No proof kernel
1k1qbbn1/3Bp1QN/B1KBb1PR/3Q4/P1QB2N1/1rrR1b2/q3Q1n1/6R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 c5 Ke4 Kc7 f4 b5 g4 h5 a4 b4 d4 h4 d6+ Kb7 Kd5 b3 d7 h3 f6 h2 f7 b2 g6 c4 g5 c3 g7 c2 g6 Rh3 a6+ Kc7 a7 Qe8 d8Q+ Kb7 f5 Rg3 f6 Nh6 g8Q Rb3 Nf3 Rd3 Na3 b1B Nc4 Rc3 Nce5 Re3 Qe2 Nc6 Ba3 c1Q Bd6 Bg4 Ng5 Bc8 Ng4 Rh3 Nh7 Bg7 f8B Qb2 f7 Rb8 a8B+ Ka7 Bb7 Rc3 Bh3 Bd7 Ba6 Bbf5 Rag1 Rbb3 Qc8 Ne5 Qcc4 Bfe6+ Kc5 Bh8 d5 Nf3 Bg7 Nh4 f8Q Ng2 Bd4 Qa2 Qfg7 Qb8 Qd8 Be8 Qd7+ Ka8 Kc6 Qd8 Bg3 B8f7 d6 Kb8 Bge5 Ng8 Bg3 Bf5 Qde6 Be8+ d7+ Ka8 Qd5 Be6 Qf6 Bg7 Bd6 Bf8 Qg7 Rb4 Rf1 Rb8 Rhg1 h1B Rf5 Nh4 Rh5 Bf3 Rh6 Rbb3 Qf2 Qb8 Qf1 Ng2 Qe2 B8f7 d8R Be8+ Rd7 Qd8 Qde4 Ne3 B6c5 Nf6 Nf2 Beg4 Be5 Bf7 Rd3 Ng8 Qed5 Ng2 Bed4 Bc8 Bf5 Kb8 Ng4 Be8+ Bd7 Bf7 Be8 Bce6 Bd7 Be8 Bd6+
2q1b2r/B2P1Q2/NrN1Q2R/5Knn/1N3bN1/1p1B3R/RP1k2R1/B1qnn3 b - - 0 1 illegal: Other
2B1rNR1/b2p2kq/2B3n1/3nq3/bQ2QP1R/bQRPBbrR/2B5/1KN5 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 hxg5 c4 exf5 c3 bxc3 Nf6 c4 Ng8 c5 Bg7 Nf3 Bh6 Ng1 Bf8 c4 Kf7 f4 a5 g4 e5 d3 h5 Kd2 e4 Kc2 h4 g6+ Kf6 b6 a4 b7 a3 g7 h3 g5+ Kf7 g6+ Kf6 c6 e3 c5 e2 c7 e1B c6 h2 Be3 a2 Nh3 Bd2 Nc3 Bc5 Qf3 Rh5 Bg2 Ra5 Qe4 Bf8 Ne2 Bfb4 Ng5 Bd6 Nc1 Ra3 Ne6 Na6 b8Q Rh3 Qb3 Be1 Nf8 Ne7 g8R Bf2 g7 Ng6 Rh8 Qe7 g8B Bb7 c8B Rg3 c7 Qh7 Rb1 Kg7 f6+ Kh6 f7 a1Q Bf3 Qe5 Rb2 Bb4 Kb1 Bc6 Rc2 Bb5 Rc3 Ba4 Bd1 Kg7 Bc2 Qh3 Rh4 Ra2 Rc4 Ba3 Rc3 Nb4 Bh7 Nh8 Bf5 Ng6 Be6 Qhf5 Bd5 Qh5 Bc6 Nd5 Ba6 Qh8 c8R Qh7 Re8 Bg1 Bc8 Bf2 Rf1 Bg1 Rf3 h1B Rd8 Rg4 Rg3 Bf3 Rgh3 Rg3 Ne6+ Kf6 Rh8 Bf2 Nf8 Kg7 Bd2 Bb6 Be3 Ba7 Ne6+ Kf6 f8Q+ Qf7 Qfb4 Nf8 Bd4 Ng6 Qe3 Qh7 Nf8 Kg7 Bd1 Re2 Bc2 Qf6 Qe6 Re4 Be3 Qg5 Qf5 Re8 Qfe4 Qe5 Rg8+
4RrQB/Q1P5/2qR2bN/bBR1K2P/1B1nB3/1Q1br3/2kpQq2/2N3bn b - - 0 1 illegal: No possible last move
3Q2N1/RBp1Q3/Q1Q1bN2/2qPR3/KRN2n1b/8/nPkr1Br1/q2nN1n1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 h4 Kd6 d4 g5 Kd2 e5 Kc2 a5 Kb3 e4 f6 g4 f5 e3 b6 g3 h6 e2 b7 e1N h7 g2 f7 Bg7 f8N Ra7 f6 Nc6 b8R Qd7 h5 Nd3 f7 Qe6 h6 Be5 Rh5 Nf4 Qc2 Nd8 Qc6+ Ke7 Nd2 Kf6 Ba6 Qd6 Bb7 Ra8 Ngf3 g1N Ka4 Ne7 Nc4 Rg8 h8N Nf5 h7 Rg2 Be3 Be6 Nhg6 Qc5 Bf2 Ne3 d6 Nd1 d7 Bd6 Re5 Be7 Qa6 Nc6 d8Q Nb4 Ne1 Na2 Qc6 Ra6 Qdd6 Rb6 d5 Rb3 Qa6 Rd3 Qdc6 Bd8 Ne7 Rd2 Re3 Kg5 Ng8 Kf5 h8Q Bf6 Nh7 Bh4 Rh3 Ke4 f8Q Bg3 Rh5 Bh4 Nc2 Kd3 Re5 Rg5 Nhf6 Rg6 Nd4 Rg2 Nf3 Kc2 Qe7 Qd4 Kb5 a4 Ka5 a3 Ka4 Bg3 Qh4 Qc5 Qd8 Bf5 Qh7 Bh4 Qhe7 Bg4 Ra8 Be6 Ra7 Ne3 Re1 Nd1 Rf1 Nc1 Rfe1 a2 R1e3 a1Q+ Ra3 Qb1 Rb3 Na2 Rb4 Qa1 Ne1+
1b3Nq1/1P2q1n1/B4r2/2N3BN/prr3k1/R3RRrR/Q1Bn1P2/KQ3N1b b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 g4 c5 d4 h5 Kd2 e5 Kc2 a5 Kb2 c4 b6 a4 b5 e4 b7 h4 f6 h3 b6 e3 f7 e2 d6 Ke6 d7 e1Q d5+ Ke5 d6 h2 g6 Be7 f8N Nc6 b8R Bb7 g5 Kf5 g7 Qe2+ Nd2 Qg4 g6 Bc8 b7 Ne5 Ne2 Rh4 Ra3 c3+ Ka1 c2 Nf4 Nc4 Nh5 Nh6 g8B Ra6 g7 Qg1 Rf3+ Kg4 Bh7 Nf5 g8Q+ Ng7 Bfd3 Qg2 Nf1 Nd2 Qa2 Rh3 Bhg6 Rg3 Bge4 Qe8 d8R Be6 d7 Bd6 Bg6 Rb6 Ba6 Rb4 Rdc8 Bg8 d8N Bd5 Rcc3 Qe7 Ra3 Be4 Ra8 Bb8 Nde6 Bc6 Nc5 Be4 Rg1 h1R Qe1 Rh4 Rh1 Rb6 Rh3 Rf6 Bh7 Bc6 Rfe3 Qd5 Bhd3 Qg8 Bg6 Bh1 Rf3 Ne4 Bg5 Nd2 Qeb1 c1R Rfe3 Rc4 Bc2 Bf4 Rd8 Bb8 Rdd3 Kf5 Qc1 Rhd4 Qcb1 Kg4 Rdb3 Rb4 Rf3 Rdc4 Rbe3
b2bRBB1/1P2Q3/RRk1NB1p/2b3P1/1Q1nb3/R1nr3q/q3BKN1/2r2N2 b - - 0 1 illegal: No possible last move, all moves rejected
2Bb2b1/KPrR2Q1/P1QQQ3/1Nr1nk2/2R2q1n/q1B4R/5p2/qR1qN2B b - - 0 1 illegal: No proof kernel
1n2BbQ1/2B1R1q1/2q1NBR1/2BrR3/b1p3PQ/NnP1q3/n1k1N3/1R1b3K b - - 0 1 legal: proof: d4 b5 f4 a5 a4 g5 axb5 e5 dxe5 g4 f5 g3 hxg3 Ke7 g4 Ke8 g5 Ra6 g4 Rg6 fxg6 Ba6 Rh2 Bb7 Rh1 Bc8 Kf2 Ke7 Kg2 Ke6 e4 d5 b4 h5 c3 c5 b6 f5 b5 a4 b7 f4 b6 d4 g7 h4 g6 a3 Qe1 a2 Ne2 d3 Na3 d2 Rb1 d1Q Be3 a1N Nb5 Ne7 g8R Qa4 g7 f3+ Kg1 h3 Qh4 f2+ Kh2 Nd7 b8B Qd4 b7 Nd5 Bc7 Qg5 b8B Rh5 Bd8 Qh6 Bbc7 Nb3 Bf6 Nb4 Rg1 Qd2 Kh1 h2 Bg2 c4 Rge1 f1B Bc5 Na2 Bf3 Kf7 e6+ Kg6 e7 Rd5 e8N Nb8 e5 Qde3 e6 Bd7 e7 Bc6 Nbd6 Ba4 Nb5 Kf7 Be4 Ke6 Bg6 Qh7 Rh8 Qg8 Rh6 Qh7 g8Q+ Qf7 Ng1 Be2 Bh5 Bd1 Rg6 Rd4 Re2 Kd5 Ng7 Ke4 e8R+ Kd3 Re5 Rd5 Ne6 Qg7 Re1 Kc2 Ne2 Rd8 Rgg5 Rd2 Be8 Rd5 Rg6 Rd3 Nd8 Qg3 Re7 Nd2 Ne6 Rd8 Nc1 Nb3 Re5 Qd3 Kg2 h1Q+ Kf2 Qb7 Kg1 Rd5 Ne2 Qc6 Kh1 Qe3 Na3+
1Rq1q1BQ/k2rNqp1/1R6/Q2Nn1Q1/1bn2BP1/2RP1B2/K2Q2r1/3R1r1n b - - 0 1 illegal: No proof kernel
Q1rb2K1/1R1bq1RQ/2q1p2R/2NBr3/P3R1N1/1q3rb1/4P2B/N1nQN2k b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h4 a3 bxa3 Nh6 a4 Ng8 a5 Bg7 Na3 Bh6 Nb1 Bf8 g4 Ra6 g6 Be6 g5 Nc6 h5 Ne5 g7 Ng6 hxg6 Ra8 Ba3 Bd7 Bc1 Bc8 Kf2 Kd7 Ke3 Kd6 Kf4 h5 d4 b5 a4 f5 a6 c5 a7 h4 Na3 e6 Bg2 h3 Be4 b4 Rb1 h2 Nc2 c4 Nf3 c3 Na1 b3 Ne1 Ne7 g8N b2 g7 c2 g6 Bd7 Kg5 f4 Kf6 f3 Kf7 f2 Nh6 Rc8 g8R Nc6 a8Q Be7 g7 Nb4 Ng4 Rh5 Bf4+ Re5 Bf3 c1B Bg3 Kc7 d6+ Kb6 d5 Kc5 Bg2 Nd3 Be4 Kd4 Bg2 Bb5 d7 Bf4 d6 f1R Bd5 Qc7 d8R Rf3 Rd7 Bd8 Rf8 Qc5 g8Q Qa7 Rb7 Bd7 Qh7 Qc5 Rc1 b1Q Rg8 Qb3 Rg7 Qca3 Kg8 Qc5 Nf6 Ke3 Rc4 Nc1 Rcb4 Bg5 Bf4+ Kf2 Rd4 Bh4 Re4 Bb5 d7 Bg3 Qg6 Qe7 Qh7 Bc7+ d8N Bd7 Rg1 h1Q Rg6 Bh4 Bh2 Bb6 R1g5 Bg3 Rh6 Kf1 Ng4 Bc7 Nec2+ Kg2 Rgg6 Qg1 Ne1+ Kh1 Rg5 Qgc5 Rg7 Qc6 Rb5 Be8 Nb7 Bd8 Nc5 Bd7 Rb7
1rqR1Brk/4N3/1r2R3/Q4rPb/2b1p1nb/QN2PB1r/N2K2Q1/1Q4NR b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 fxg5 b4 h4 b3 axb3 Na6 b4 Nb8 b5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Nd7 g6 Bg7 h5 Bb7 g5 Bf8 g7 Bc8 Qb3 Ne5 Qd1 Ng6 hxg6 Bd7 Ra5 Bf5 Ra1 Bc8 b4 e5 d4 f5 d6 h5 b6 c5 b5 a5 d5 f4 b7 c4 b8R f3 b6 a4 e3 a3 b7 h4 Qb3 c3 Ra2 h3 Qb4 h2 Bg2 e4 Nd2 c2 Nb3 f2+ Kd2 f1B Bf3 Nh6 g8Q Bg4 g7 Qc8 Ra1 a2 Qa3 Bh5 d7+ Kd8 Qe6 Bc4 g8N Bd6 Qg4 Bg3 Ne7 Bh4 Qg2 Rg8 Bb2 c1R Bg7 Rf1 Bf8 Ng4 Rb1 Kc7 d8N Kd7 d6 Ke8 Ndc6 Kf7 d7 a1R d8Q Ra6 Qc7 Rb6 Nb4 Ra2+ Rb2 Raa1 Rc2 Rab1 Na2 Rb2 Ra8 Rbb1 b8Q Rf2+ Be2 Rf5 Bf3 Rb2 Qca7 Rb1 Q7a5 Rb2 Nc6 Kg6 Ra6 Kh7 Ne7 Kh8 Qb7 Re6 Qbb4 Rb1 Rc3 Rb6 Rd3 Rb8 Rd8 Rb6 Nh3 Rb8 Re6 Rb6 Re1 h1R Rc1 Rh2 Rh1 Rb8 Ng1 Rh3 Nd4 Rb3 Qb7 Rb6 Nb3 Ra6 Qbb4 Rab6 Qbb5 Bd5 Qd3 Bc4 Qb1
5r2/1bNBb1Bq/prQQ2B1/P3RN2/3P2KR/1N1k3N/1bnR1R2/1br4b b - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 c5 exd5 c4 h4 c3 bxc3 Bf5 c4 Be6 c5 Bc8 g4 Bd7 h5 Qa5 g6 Bc8 g5 Qd8 g7 Nc6 Rh2 Ne5 Rh1 Ng6 hxg6 Bg4 Rh3 Bd7 Rh1 Bc8 Kf2 Kd7 Kg3 h5 c4 b5 a4 e5 c6+ Kd6 a5 Kc5 d6 Kd4 c7 f5 d7 e4 c5 a6 c6 b4 Bb2+ Kd5 Nh3 b3 Ra2 e3 Bd3 Qe8 d8N e2 Ne6 Ne7 g8N Rb8 g7 Qf7 g6 Rb5 Nh6 Bb7 c8B Rb6 g8R Qh7 c7 Nc6 g7 Nd4 Bd7 Be7 c8Q Nc2 Re8 Rf8 g8R e1B+ Kf3 f4 Nf5 h4 Rg5 Bg3 Kg4 f3 Bg7 f2 Nc7+ Kc5 Be4 f1R d3 b2 Nd2 b1B Nb3+ Kb4 Rh2 Be5 Qa8 Ne1 Raf2 Kc3 Rh5 Nc2 Re2 B5f6 Rhf2 Bc5 Re5 Bce7 Ng3 Rh1 Bg6 Re1 Nf5 Rf1 Nf4 h3 Rh4 h2 Nh3 h1B Qe8 Ba3 Qe6 Bfe7 d4 Re1 Qd6 Bb2 Qc1 Kd3 Qh6 Rd1 Qc1 Nb4 Qcc5 Rc1 Qcc6 Nc2 Rd2#
2r2Q2/1KQ1R1qR/3bB2R/1b1r2RN/qnNqp2B/1kPBPq2/1N3qB1/8 b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 g5 fxg5 b4 h4 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 Bh6 g6 Ba6 h5 Nc6 g5 Bf8 g7 Bc8 Rh4 Ne5 Rh1 Ng6 hxg6 Qc7 Bd2 Qb6 Bc1 Qd8 Kd2 d5 Ke3 Kd7 Kd4 Ke6 b4 a5 b6 h5 b5 f5 b7 f4 b8Q f3 b6 h4 c6 h3 Kc5 d4 c3 a4 c7 f2 Kc6 d3 b7 d2 Nf3 a3 Bg2 f1Q Ne1 a2 Na3 h2 Nd3 Ra7 Nb2 Qd3 Nac4 Qff5 Qf1 Nh6 g8N d1Q g7 Qf2 g6 Qdd4 Nf6 Ra5 g8R Nf7 g7 Rd5 Nh5 Qg4 e3 Qdd4 Bd2 Qg6 Rb1 a1Q Be1 Qa5 Qa7 Qg5 b8R Ba6 Rd1 Bb5+ Kb7 Ne5 Re8 Nd3 Rd2 Qa4 c8B+ Bd7 Qc5 Nb4 Qc7 Qgg3 Kb8 Qgg4 Ba6 Bb5 Kb7 Qgf3 Nd6 Ke5 Ndc4+ Ke4 Rd3 e5 Rd1 Bd6 Re7 Qfc2 Bh4 Qf2 Rc8 Rd8 g8B Re8 Rg1 h1Q Be6 Rf8 Ra8 Rc8 Ra7 Qh2 Rh1 Qhg3 Rh3 Qg7 Rg3 Qg1 Rg5 Qh2 Qf2 Qg3 Rh1 Qf4 Nd1 Kd3 Qf1+ Kc2 Ndb2 e4 Rh2 Q4g3 Rh1 Qe2 Qf8 Qef3 Nf6 Qh5 Qcd8 Nc6 Rc7 Qd2 Nb6 Qgf2 Bg3 Qg8 Rh7 Qhd1 R1h6 Kb3 Bh4 Qdf3 Nh5 Be2 Qd7 Bb8 Ka8 Qdd4 Qdd6 Qgg7 Re7 Nb4 Kb7 Bd3 Qd7 Bd6 Qc7 Bb1 Be2 Bd3 Bef1 Bc4 Bd3 Bb5 N6c4
qqr5/1r4p1/2nkQbP1/2NB2B1/4rqN1/Q3BRR1/Pr2n1KN/QQ4N1 b - - 0 1 illegal: No proof kernel
7r/1R1nb3/n3p1Qn/B3P1qb/1P2QbN1/3qNN2/1n1R1N1Q/2kR1BKQ b - - 0 1 illegal: No possible last move, all moves rejected
R4q1B/1BQ1b3/2RB3P/N1QRKQ2/1pr1Rn1q/1PN2k2/bq2n1n1/4B1q1 b - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 cxd5 f5 exf5 h5 g4 b4 gxh5 Ra6 Bc4 Rb6 Bf1 Rb5 axb5 Bb7 Na3 Ba6 Nb1 Bc8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 f4+ Kh4 d6 c5+ Ke5 g5 d4 c4 b6 g4 d7 e6 f6 g3 b7 a4 b3 g2 f5 c3 f7 c2 d5 a3 h6 a2 f6 Na6 b8Q Ne7 h7 Bg7 f8Q Qc7+ d6 Qb6 d8R Nc5 d7 Nd5 Qd3 Kg4 h4 Ne3 Re8 Qd8 Ne2 g1Q h5 Kf3 Bd2 c1N Nec3 Ne2 h6 Qe7 Qc2 Ng2 d8R Bd7 Qf7 Bf8 Na3 Bc8 Rc1 a1Q Qc7 Qb2 Rh5 Rg8 h8B Rg4 Qfg6 Rc4 f7 Qh4 Rg5 Be7 f8B Bb7 Qh7 Be4 Ra8 Bf5 Be1 Qgf2 Qd2 Bb1 Qdd6 Ba2 Qc2 Na6 Qcc5 Nc7 Qdc6+ Nd5 Qc7 Ndf4 Qf5 Ng1 Bd3 Ne2 Rc2 Qg1 Rh5 Qgf2 Be4+ Kg3 Qg6+ Bg5 Kd6 Rd4+ Qd5 Nc1 Nd1 Nh3 Bc3 Qg1 Be7 e5 Nc4 Nhf4 Na5 Kg4 Bd2 Kg3 Rc5 Rc4 Nc3 Kf2 Bf8 Bd8 Re6 Qf6 Be7 Qf8 Qf6 Kg3 Qd4 Kg4 Bb7 Kg3 Rc6 Kg4 Kd7 Kf3 Bd6 Be7 Qf7 e4 Rhc5 e3 Re4 e2 Qf5 e1Q Rd5 Qee3 Qc5 Qef2 Be1 Qh4 Qg5 Nfd3 Ke6 Ne2 Qf5+ Ndf4+ Ke5
b2Q1N1q/R7/pQBQNqR1/7q/PBnb2rk/2P2R1Q/3rq1bK/B4R2 b - - 0 1 illegal: No possible last move
Bnqq3B/K4N2/2r1kp1q/1rQBN1RP/2b3R1/2r5/1NQ2PRb/1B1R3q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 d5 dxc5 d4 a4 Na6 axb5 Nc7 Bd2 Nh6 Bc1 Nd5 exd5 Ng8 Ke2 Kd7 Kd3 e5 Kc4 g5 h4 a5 b4 g4 h6 d3 h7 d2 c6+ Kd6 b6 a4 Kb5 a3 c4 a2 c5+ Ke7 c7 e4 d6+ Ke6 d7 g3 h5 g2 c6 e3 b7 e2 Kb6 e1R b8Q Nf6 b5 Ra5 Nc3 Ng8 Bb2 Nf6 Qa7 Ke7 Na4 Kd6 Nf3 g1Q Bd3 Qg4 Rh2 Qg3 Qc2 d1Q Rg2 Bg7 Ne5 Qe2 Rd1 Qe7 d8N Bb7 c8B a1Q c7 Qh3 Be6 Qd2 c8B Re3 Bd5 Ba6 Bcb7 Qc8 Ba8 Qee6 Bg6 Rc3 Bge4 Re8 h8R Qed7 Bg6 Qh6 Rg8 Re6 Qc7+ Ke7+ Ka7 Rec6 b6 Rb5 b7 Bf8 b8R Qac1 Rd4 Qh1 Rdg4 Bg7 Rb7 Bf8 Qa5 Qdc7 Bge4 Nd7 R8g5 Nb8 Ba1 Kf6 Nb2 Bd6 Qa3 Qe7 Rd7 Bc7 Qc5 Qef8 Ng6 Bh2 Ne5 Qg8 Ba2 Qgf8 Bb1 Qfh8 Rd1 Qe8 Nb7 Qed8 Nd6 Ke6 Na4 Re3 Bd4 Rc3 Nb2 Rbb6 Bf3 Bc4 Be4 Rb5 Bd5+ Kf6 Nf3+ Ke7 Bh8 f6 Nf7+ Kd7 Be4+ Ke6 N3e5 Qd5 Bf3 Qdd8 Bd5+
1bkq4/nr1rB1BN/3rp1BQ/Rr6/2NbP3/1b4K1/QN1BR1PQ/2b4N b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 h5 Nc6 cxd3 Nb4 d4 Nc6 d5 Ne5 Qb3 Nh6 Qd1 Ng6 hxg6 Ng8 Kf2 Kd7 d4 c5 b4 f5 g7 a5 g6 h5 b6 h4 b5 c4 d6 f4 d5 a4 b7 f3 b8Q a3 b6 h3 b7 h2 Qd2 a2 Na3 c3 Qh6 c2 Nc4 Qe8 Nh3 Ra6 Nb2 Qd8 Bd2 c1B Kg3 Rb6 Nf2 Nf6 g8N Rb4 g7 Rh4 e4 Ne8 Bc4 Rh7 Re1 h1R Re2 Rg1 Nh1 f2 Bb3 f1R Bc4 Qa5 Nf6+ Kd8 g8Q Rh5 d7 Nd6 Qe6 Nb5 Qa6 Rf7 Nh7 Na7 Qbd6 Bg7 b8B Rd1 Qdf4 Rf6 Be5 Rd6 Bb5 Kc7 d8N Be6 Nb7 Kc8 Be8 Qd8 Bg6 Rgf1 Qh4 Rf7 Qh2 Bh8 Bec3 Bd4 Qa4 Rd7 d6 Bb3 Na5 e6 Nac4 Rb5 Qa3 Bb6 Bg7 Bc7 Rb1 a1B Qa5 Bb8 Qa2 Rc7 d7+ Kb7 Na4 Bd4 Ra1 Re7 Nab2 Rc6+ Kf3 Rd6 Kf4 Qh8 d8B Kc8 Kf3 Reb7 Be7 Qd8 Kg4 Rf1 Kg3 Rf7 Qb1 Rbd7 Ra5 Rdb7 Qa2 Rbd7 Beg5 Rdb7 Bh4 Rfd7 Be7
3Nb3/Q2pr2N/QN1r3r/1rBPR3/B7/B1bk2bB/1P1qQ1Q1/1Kn1Rb2 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 g4 a4 g3 a5 Nc6 hxg3 Ne5 g4 Nc4 g5 Nb6 axb6 Bg7 Na3 Bh6 Nb1 Bf8 g4 Kf7 d4 h5 Kd2 c5 Kc2 a5 f4 e5 g6+ Kf6 g7 a4 b7 a3 b8N h4 b6 c4 b7 c3 Be3 h3 Qe2 h2 Nh3 e4 Nc6 a2 b8Q Bb4 Nd2 Ba6 Ng5 Qa5 Nc4 Ne7 g8Q Ng6 Qa7 Ne5 Nb6 Nd3 Nd8 Nc1 Bh3 Rh6 Re1 h1B d5 Rc8 Bc5 Rc6 Rb1 Rd6 Nh7+ Ke7 g5 a1R g6 e3 g7 Bf3 Qc7 Bc4 Qa7 Bh5 Qa6 Ra2 Ra1 Ra3 Kb1 Rb3 Ra4 Bb5 Ra3 Be8 Ra4 Ba3 Rd4 Bb4 Re4+ Re6 Re5 Bc4 Qg2 Bf1 Qh8 e2 g8B Ba3 Bf7 Rb5 Bg6 Bb4 Qg8 Qa4 Bh5 Qd1 Q8g4 Qd4 Qa7 Qd2 Qg6 Ba5 Bf3 Bb4 Be4 Ba5 Bc2 Bb4 Ba4 c2+ Ka1 Bc3 Qh6 Nb3+ Ka2 c1B Kb1 Qd4 Ba3 Be3 Qh5 Bf2 Qhf3 Bg3 Qd3 Rb4 Qda6 Rb5 Bc5 Qd2 Ba3 Nc1 Bc5 Bh5 f6+ Ke8 f7+ Ke7 f5 Bg6 Ng5 Kf6 f8Q+ Bf7 Qg8 Be8 Qh7 Re7 Qh5 Rh7 Qhf3 Rh6 Nh7+ Kg7 f6+ Kg6 Rd1 e1R f7 Re2 f8B Re3 Rh5 Re7 Qfe2 Re5 Rh4 Re7 Rg4+ Kf5 Re1 Re4 Rh4+ Ke5 Ba3 Kd4 Rh5 Re3 Re5 Re4 Qg4 Kd3 Qd1 Rdf6 Bfc5 Rd6 Rh5 Ree6 Rhe5 Re7 Qde2+
5bKQ/k1QB1r2/nN2qr2/2b3B1/2N1Q2p/Q1rPB2B/1n1npR1P/4R1N1 b - - 0 1 legal: proof: c4 g5 f4 d5 cxd5 b5 fxg5 b4 d4 b3 axb3 Na6 b4 Bf5 b5 Bd3 exd3 Nb8 Ke2 Kd7 Ke3 Kc8 Kf4 Kb7 Ke5 c5 g4 f5 Ke6 h5 Kf7 e5 b4 a5 d6 f4 b6 a4 d7 h4 d5 e4 b5 e3 g6 f3 d6 a3 g7 a2 g5 f2 g6 c4 Nd2 e2 Bh3 f1N Qb3 c3 Nc4 c2 Qa3 Ra5 Be3 Nf6 g8Q c1R g7 Rh6 Qh7 Nh5 g8B Ng7 Qe4+ Nc6 Rb1 Rc3 Re1 Qc8 d8Q a1B d7 Rh7 Qc7+ Ka8 d8B Ra6 Bdg5 Nd2 Bd7 Bc5 b7+ Ka7 Rf1 Na5 Rf2 Rd6 Bh3 Qd7+ Kf8 Qc6 Bge6 Ne8 Kg8 Rf7 Bd7 Rdf6 b8N+ Ka8 Qh7 Qe6 b6 Bb2 b7+ Ka7 Qh8 Bc1 Qc6 Nc7 Qe4 Na6 Bb5 Qe5 Nd7 Qe6 Ndb6 Bf8 Bd7 Bb2 Qa2 Bba3 Qb3 Bad6 Qa3 Bc5 Nf3 Nc6 Re1 Ne5 Ng1 Ng4 Rf4 Nf2 Rf5 Nd1 Rf2 Nb2 Qb4 Nc7 b8Q+ Ka6 Qc8+ Ka7 Qa3+ Na6 Qc7#
6Q1/q2BQ2K/nr2b1Q1/R2p1NPR/B2p1nR1/2PBB3/1brkb3/2n2RN1 b - - 0 1 illegal: Other
1KQNk2r/7R/1B2rBn1/q1pN3n/5n1P/PR1B2RQ/b2b2pB/b2Q3Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 b5 Ke3 c5 Ke4 g5 Ke5 e6 f4 g4 d4 g3 d6 b4 a6 b3 f6 b2 a7 Ba6 a3 Kf7 h6 Qe8 f5 Qe7 d5 Qd7 h7 Bd3 Ne2 Qe8 d7 Qc8 d8B Be7 d6 Qa6 d7 Nh6 Nf4 Bc4 Nc3 b1N Ncd5 Qa5 Bb6 Bd3 d8B Ke8 f7+ Kd7 f8Q Bc4 f6 Nc3 f7 Ba2 Bd3 Ne2 Rb1 Nf5 Rb3 Ng7 h4 Nh5 Rh3 Bg5 Bf6 g2 Rg3 Bh6 Qh1 Bg7 Qd8+ Kc6 f8Q Nd7+ Ke4 e5 Ne6 Rb8 a8Q+ Rb7 Qab8 Nef4 Qbc8+ Rc7 Kf5 e4 Qf7 Nf8 Ke5 e3 Qh3 Rg8 h8R e2 Rh7 e1B Be3 Bd2 Bg1 Rh8 Bh2 Qa4 Qg6 Qb4 Qgg4 Qa5 Qd1 N8g6+ Ke4 Bh6 Qe8+ Kd6 Nd8 Rc6 Kf5 Bg7 Qee1 Nf8 Qh1 N8g6 Qa8 Kd7 Qc8+ Ke8 Ke4 Nf8 Ke5 Rd6 Bc7 Ra6 Bb6 N8g6+ Kd6 Bf8+ Kc7 Bg7 Bg5 Bgc3 Kb8 Ba1 Bc7 Rc6 Bf6 Re6 Bb6
1Br1B1k1/R3q3/4r2b/1pnbN1P1/n2NB3/4RB1p/R1QN1K1P/nN3Q1b b - - 0 1 legal: proof: d4 a5 f4 d5 b4 g5 bxa5 e5 dxe5 d4 fxg5 d3 cxd3 Qf6 d4 Qe7 d5 Qd8 e4 h5 a4 b5 g4 c5 a6 f5 a5 Kf7 g6+ Kg7 e6 h4 a7 c4 g5 c3 e5 c2 a6 h3 e7 f4 e8B f3 d6 Qe7 d7 Qe6 d8N Bb7 Bd3 Qf7 e6 Nc6 e7 Qf5 Bf4 c1N Ra2 Qe6+ Ne2 Qc8 Be4 Rh6 Qc2 Nb8 Nc6 Qc7 Kf2 Nd7 Ne5 Bd5 Re1 Nc5 Nd4 N1b3 Re3 Rc8 a8B Na1 a7 Na4 Bac6 Nf6 a8R Qd6 Ra7 Kg8 g7 Nd7 Bg3 Rg6 Bf4 Ndc5 Ba8 Kh7 g8N Bh6 Nf6+ Kh8 Nec6 Qe6 Bb8 Qf7 Ne5 Qh7 Nfd7 Re6 Nb6 Kg8 Nbc4 Qg7 Ncd2 Qf8 Kg3 f2 Bf3 f1B Kf2 Bg2 Bb7 Bc4 Be4 Qg7 Beh5 Qf8 e8Q Bh1 Qd8 Bb3 Be8 Qe7 Qc7 Bd5 Qc6 Ncb3 Q6c4 Nbc5 Qf1
kb6/Q3B3/N2b3P/4PKNN/Q1B1Bp1q/r1r1B1R1/Q2Nnpb1/1Rrn4 b - - 0 1 illegal: Other
2R2Bb1/n2NrQ2/3N2Bp/1P1B3Q/2Nr4/1QBPkpQr/q4R2/b1K1nn2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Kd7 b4 f5 e4 c5 d3 a5 Kd2 c4 d6 Ke6 d7 f4 g6 h6 b6 a4 b5 a3 g7 a2 b7 Qg5 d8B Rh7 Bg2 Ne7 g8Q+ Rf7 Na3 Ra4 Nf3 Nd7 b8Q Qf6 g5 Ng6 Be7 Qh8 Rf1 Bg7 Bb2 c3+ Kc1 c2 Nc4 Nc5 Bf8 Ne7 g6 Nc6 Rf2 Na7 Bc3 Rb4 Rb1 a1N Qe2 Bf6 g7 Ra4 Qh7 Re7 Qg6 Qh7 g8Q+ Qf7 Qf1 Bb7 Qh5 Bd5 Qg3 Bg7 Qc7 Bf6 Qa5 Bg7 Qb4 Bh8 Qb3 Bg7 Nd6 Rd4 Nd2 Qg8 N2c4 Bf6 Kd2 c1R Bh1 Re1 Rc1 Nc2 Bf3 Re3 Bg2 Kd7 e6+ Kc7 e5 Ne1 Rc2 Ne4+ Kc1 Nd2 Bh1 Be4 Bg2 Bh7 Bd5 Qf7 Nf5 Bg8 Nfd6 Re8 e7 Qe6 Qgg4 Rh3 Qg3 Qf7 e6 f3 Qe2 Bh8 Qe4 Nf1 Qef4 Rd8 e8B Rd7 e7 Bf6 Nd2 Kb6 N2c4+ Kc5 Qff5 Qe6 Bg6 Rc7 e8N Re7 Nf7 Qa6 Nfe5 Qa2 Ned6 Re4 Ba5 Kd4 Nd7 Bh8 Qf7 Rg4 Ncb6 Ke3 Rc8 Ba1 Bc3 Rd4 Nbc4+
2rNB1N1/B3R2Q/Qn1kbP2/Qpp1b1b1/3NrR2/2n5/Q1B1n1P1/K3B1q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 f4 Kd7 a4 e5 d4 b5 Kd2 h5 Kc2 e4 Kb2 h4 g6 c6 a6 e3 d6 e2 a5 e1B d5 h3 f6 h2 a7 Nh6 f5 Bh4 a6 Ng4 g7 Rh7 g8Q Rh6 f7 Rh8 f6 Bg5 Bd2 Rh3 Qb3 Rc3 Nf3 Qc7 Be1 Qb7 Bd3 Rc5 Qh7 Rc1 Bc2 Ne5 Ra4 Bh4 Rf4 Ng4 Qa2 Qb6 Ka1 Bg7 f8B Bg5 Nd4 Kd8 d7 Kc7 d8N Nd7 Bc5 Ne3 Rg1 Rb8 a8B h1N a7 Ng3 Bb7 Bf8 a8Q Be7 Q8a6 Nd1 Rh1 Ra8 Rhh4 Ne2 d6+ Kb8 Rh3 Ndc3 Re3 Qa7 Re6 Nb6 d7 Kc7 Ree4 Bd6 Re7 Rb8 Ba8 Be5 Bb7 Nca4 Ba8 Rd1 Bb7 Rd3 Nc3 Re3 Ba8 Re4 Bb7 Nc4 Bb6+ Kd6 Nd5 c5 Bc6 Qc7 Ba7 Nac3 N8e6 Ra8 d8Q+ Qd7 Qda5 Nb6 Nd8 Qc7 Re8 Be6 Ne7 Rc8 Ng8 Qd7 Re7 Qe8 Rf3 Qh5 Rf5 Qh1 Rf4 Qg1 Be8
Q2K1B2/RN4br/1R1p3P/3B2N1/1Q2b1Rb/p3Bq2/nPQR1Q1k/2nrn3 b - - 0 1 illegal: No possible last move, all moves rejected
3Q4/1Bb1Nb2/Knp2Qb1/3R1pBR/k2nP2R/q3r2B/2P1Q2Q/r2rBN2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 e5 a4 e4 axb5 e3 dxe3 Nf6 e4 Ng8 e5 Bc5 Qd3 Bd6 Qd1 Bf8 Kd2 a5 Kd3 f5 Kc4 d6 b4 Kd7 h4 a4 e4 a3 e6+ Ke7 h6 a2 b6 d5+ Kb5 Kd6 h7 d4 g6 d3 g7 d2 e7 Bb7 e8Q Na6 h5 Qb8 h6 Bd5 b7 Ne7 g8B Bg7 Nh3 Bf7 Qe2 d1B Qd8+ Ke5 Nd2 Nd5 Nf4 Kd4 Rh4 Kc3 Ng6 Qa7 b8B Be6 Bh3 Bc8 Nf1 Be6 Ne7 Nb6 Bg5 Bf7 Ka5 Be5 b5 Bg6 Bd5 Kb2 Rc1 Ka3 Bb7 a1R Rh5 Rg8 h8R c6 h7 Bc7 Rb1 Rg7 Rb4 Rf7 Rd4 Rf6 Rd5 Rd6 Re5 Rd3 Rd5 Re3 Rh4 Nc8+ b6 Nc5+ Qa6 Ne6 Rh5 Bh2 Bg3 Nd4 Be1 Be2 Rh4 Bc4 Rh5 Qb8 Rh4 Qg3 Rh5 Rb8 Rh4 Bb3 Qe2 Qf3 Ka6 Bc7 Rg8 Qg3 h8Q Ka4 Qf6 Qd6 Rgh8 Qa3 R8h5 Rd1 Ba8 Ra1 b7 Nb6 Ng3 Rc8 b8Q Ba2 Nf1 Bc4+ Rb5 Bcf7 Rd5 Rd1 Bb7 Ra1 Qdd6 Rd8 Qdh2 Ne6 Re5 Rdd1 Qd8 Nd4 Rd5
n1B2Rr1/K1Q4P/1Qr1PQr1/3R1QBp/2N1N1R1/B4n1k/np4b1/bq2B3 b - - 0 1 illegal: No proof kernel
QBQN1nb1/1B1Pnq2/R2B1r2/1RQR2b1/1Npp2K1/3kBP2/2rrn3/2R5 b - - 0 1 illegal: No proof kernel
1B2B3/2RP1Q2/k2p4/3n2N1/1b1rQb1K/2P3BB/R1q1NRpn/1b1QrnR1 b - - 0 1 illegal: No proof kernel
5Q1b/2p3bQ/1NR4n/BNQ1p3/3PqN1r/KRr3nB/1nP1RR2/2b3kN b - - 0 1 legal: proof: g4 d5 e4 b5 exd5 g5 a4 f5 axb5 Be6 h3 Bf7 gxf5 g4 Ra4 g3 Ra5 Bh5 Ra1 Bg4 hxg4 Qd6 Ke2 Qd7 Ke1 Qd8 f4 Kf7 d4 Kf6 Kd2 a5 Kc3 h5 Kb3 h4 d6 a4+ Ka3 e6 b4 g2 d7 h3 b6 h2 g5+ Kg7 b7 Kh7 f6 Kg6 f5+ Kf7 Nc3 Nc6 b8N Na5 Bd2 Rh3 Ne2 g1B Ng3 Bh6 g6+ Kf8 f7 Kg7 f8R Qh4 d8N Qg4 b5 Qe4 b6 Rh4 b7 e5 Qb1 Bge3 Nd7 Beg5 b8R Bf6 Rb3 Ra7 Rg1 h1N Nb6 Rb7 Rg2 Nc4+ Ka2 a3 Re2 Ra7 Nb5 Nb2 Bh3 Ra4 Ba5 Rc4 Qe1 Rc5 Qb4 Rc3 Nf1 Ng3 Qc5 Bf4 Rf7+ Kh6 g7 Kh5 Ne6 Nh6 g8Q Bh8 Qh7 Bg5 Rf8 Bgf6 Nf4+ Kg5 Rb1 Bfg7 f6 Qc6 f7 Qe4 Bg2 Kg4 Bh3+ Kf3 Ra1 Rd3 Rb1 Re3 Rc3 Rd3 Kb3 a2 Ka3 a1B Rb3 Nh1 Ng3 Rc3 Re3+ Kf2 Rbe1 Qa8 R1e2+ Kg1 Rf2 Qg2 Ree2 Qe4 Ra8 Qg2 f8Q Qe4 Nf1 Ng3 Re8 Ngf5 Re6 Ng3 Rc6 Nd1 Ka4 Bb2 Kb4 Bc1 Ka4 Nh5 Ng3 Nb2+ Ka3 Na4+ Kb4 Nb2 Nh1 Ng3 Ka3
Nr3BK1/Q1p1Rr2/n1RQN2Q/4p1P1/1nr5/1b1RQ2R/5NkP/bB4qb b - - 0 1 illegal: No proof kernel
N1krnQB1/2p1pBR1/1qR1B1K1/2nR2Bn/P2R4/1NP2Q2/bQ2b1r1/r7 b - - 0 1 legal: proof: e4 d5 exd5 a5 f4 g5 b4 Qd7 bxa5 Qd8 fxg5 Be6 g4 Bh6 h4 Na6 g6 Nc5 g7 Nd7 g5 Nb8 g6 Bg5 hxg5 Bc8 Ke2 Kd7 Kd3 f5 a4 b5 d6 h5 a6 b4 c3 b3 a7 b2 Qf3 h4 Bh3 Qe8 Na3 b1R Ne2 Na6 Nd4 Nf6 g8B Qd8 g7 Rb2 g6 Qf8 Bf7 Ra2 g8B Nh5 g7 Rb8 a8Q Rc2 Nc4 Rb1 Qb8 Rbb2 Nb6+ Kd8 Nb3 f4 Ke4 Rb1 d4 Rh2 d5 Rg2 Bhe6 h3 Kf5 h2 Na8 Nf6 Be3 Rbg1 Rd1 Ne8 Rd4 Ra1 Rhd1 h1B Rc4 Nc5 Rdd4 Rgg1 Qb4 Ba6 Qa3 Rg2 Qb2 Re2 Kg6 Rg2+ Qg3 f3 Bg5 f2 Qf3 Ne4 Rc6 f1N Bh7 Bb5 g8R Nc5 Rg7 Ng3 Bhg8 Nh5 Bf5 Ne6 Bh3 Kc8 d7+ Kb7 d8Q Be2 d6 Nc5 Bd5 Qf4 d7 Qe3 Bdf7 Qg1 Rd2 Qd4 Bhe6 Qb4 Rd4 Qb6 Qh3 Nd6 Qf8 Ne8 Bc4 Kb8 d8R+ Kb7 R8d7 Kc8 R7d5+ Rg4 Rdd6 Bd5 Rd7 Rg2 Qf3 Be6 Bd3 Bd5 Bf5 Bdc4 B5e6 Bd5 Nc1 Ba2 Nb3 Kb8 Bh7 Kb7 Qg8 Nd6 Be8 Kc8 Qgf7 Rf8 Qg8 Qa6 B8f7 Rd8 Qf8 Qb6 Bhg8 Ne8 R7d5+
1k3b1Q/1P4n1/1N5Q/1p3NQq/pbP3R1/2RBQr2/3B1nr1/2rbKNBB b - - 0 1 illegal: No proof kernel
1R3nNB/bP2rp1k/2R1pq1n/2RQ2Rb/P1b1r1Q1/2N2B2/1BB2QK1/4r3 b - - 0 1 illegal: No proof kernel
B1q1NRQ1/1P2prp1/3b4/2RNQBn1/K6B/1n1N2B1/brkPQ3/nNr5 b - - 0 1 illegal: No proof kernel forced: wxDB
1Q1b1bnQ/k5q1/1N3N2/2B1RNP1/3R2N1/3R1bpB/2B1pPr1/1KRqnr2 b - - 0 1 illegal: No proof kernel
Q2QqBQ1/Kb2N3/n1R1Q2B/N3b1Pr/rN1p4/q1P1p1BR/r3n1B1/1k6 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 d5 g4 a5 b4 a4 f4 a3 b6 h4 c6 a2 Kc5 d4 c7 h3 b7 e5+ Kb6 e4 c3 h2 g6+ Kf6 g7 Ra4 b5 Nh6 g8Q Ra3 Qdb3 Be7 Bg2 Nc6 b8B Be6 Ne2 Qd6 c8N Bd7 Nd2 Qd5 Nc4 Rh7 Na5 Bd6 Ne7 Nb4 Ka7 Be5 b6 Qb5 b7 Bc8 Bd6 Rg7 b8Q Qe8 Qa8 Bb7 Be3 Rg5 Nc1 Ra4 Nd3 Na6 Nb4 Rh5 Raf1 a1R Rf3 Rg1 Rh3 Rga1 Rg1 h1Q Qge6+ Kg7 f6+ Kh7 f5 R1a2 Ra1 Qc1 f7 Qa3 f6 Nf5 f8Q Ng3 Bh6 e3 g5 Ne2 Qbd5 Qb5 Qfd8 Qe8 Nec6 Kg6 Qg8+ Kf5 f7 Nc7 f8B Na6 Qde6+ Kf4 Rf3+ Ke4 Ne7 Bc6 Rh1 Bd5 Rhh3 Bb7 Nbc6 Kd3 Nb4+ Kd2 Rf6 Kc1 Bc7 Kb1 Rg6 Bg7 Bg3 Be5 Qed7 Rd2 Rc6 Ra2 Qde6
Q3n3/1B1R3n/b1rq3N/b1Q1p2N/r1k2PN1/R1p5/3QNn1P/BqQ3KB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kf7 Kf2 b5 a4 e5 d4 g5 h6 c5 d6 c4 f6 Ke6 a6 Kd5 f7 g4 d7 c3 a5 b4 h7 b3 a7 b2 a6 Nc6 Ra3 Bd6 f8Q Nge7 Bg2+ Kc4 d5 Nf5 Nd2+ Kc5 Ne2 b1Q Nf1 g3+ Kg1 Ne3 Bb2 Qc7 d8Q Qa5 Qc1 Ne7 Ba1 Rg8 h8N Bc7 d6 Nd1 d7 Kc4 Nf7 Nf2 Bb7 g2 Nfg3 Nd5 Nh5 Nf6 Nh6 Qc5 Ng4 Ba5 Qd6 Rg7 Qd2 Qcb4 Qb6 Rg6 d8N Ne8 Nf7 Rc6 Nfh6 Qd6 Qbe3 Ne4 Qf2 N4f6 Qb6 Nh7 Qf2 Bf5 Qb6 Bd3 Qbe3 Rd8 a8B Rd7 a7 Rd8 Kf2 g1N Kg2 Nh3 Rd1 Nf2 Kg1 Rb8 Qb6 Rbc8 Qbe3 Ra6 Bh1 Rcc6 Bb7 Bc7 a8Q Ra4 Qdc2 Ba5 Qb6 Bg6 Rd5 Bf5 Qd2 Bd3 Qc7 Kb4 Qcc8 Ba6 Rd3 Kc4 Qc7 Qdb4 Rd7 Qc5 Qb6 Qd6 Qc5+
Q1Nr1Q2/nk3bBn/4q1b1/1PK1p3/3p1B1r/4Rq2/1NbPRR2/B2Q1B1R b - - 0 1 illegal: No possible last move
Bkb1N2n/4B3/1B1nq1Qr/QP1p1r2/R2p2R1/QN3b1q/2Pb4/1K3NQN b - - 0 1 illegal: Other
B1q1k1r1/KQN2R2/1B1r4/np2Q3/1bn1pP1R/4B3/b1Q3rP/B1qNR2R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 e5 Ke3 c5 f4 g5 a4 b5 d4 g4 d6 g3 d7+ Ke7 a6 g2 h6 c4 a7 c3 h7 c2 d5 Bg7 d6+ Kf7 a5 Nh6 f6 Ng8 a6 Nh6 Nf3 g1R Bg2 Qb6+ Nd4 Qc5 d8Q Qc6 d7 Qc4 Qe7+ Kg6 d8B Bg4 f7 Qb4 f8R Be6 Nc3 Rg8 h8B Bh3 Bd2 c1Q Qc2+ Nf5+ Ke4 Qa4 Kd5 Qa2+ Kc5 Qf1 Kb6 Qac4 Be3 Nc6 Bc7 Rc8 a8Q Rd8 a7 Na5 Ka6 Qe1 Bb6 Qc8+ Bb7 Qd2 Re1 e4 Nd1 Qc1 Qb8 Bf1 Ne6 Rg2 Qd7 Bh6 Ba1 Bc4 Qe5 Nd6 Rf5 Bf8 Rh5 Qd2 a8R Ba2 Rh4 Qc1 Ra7 Ndc4 Qc6 Kf7 Qcd5 Qc5 Ba8+ Ke8 Rf7 Qc8+ Qb7 Bb4 Ka7 Rd6 Nc7+
1R1R1qqB/3N1Q2/3QbrB1/p2r4/NPn1R1N1/1p2n1K1/3q3P/kRb2N1Q b - - 0 1 illegal: No proof kernel
1q2Nbq1/R2n2b1/1r2k1N1/p2rr1Bp/5Q1N/3P1R1P/3K1R1N/B1RQ1B1n b - - 0 1 legal: proof: g4 d5 a4 f5 f4 b5 axb5 d4 gxf5 d3 f6 Nd7 e4 Ba6 e5 Bb7 e6 Nb8 f5 Bc8 cxd3 Bb7 d4 Bf3 d5 Bh5 Be2 Bg6 Bf1 Bf7 exf7+ Kd7 b4 e5 d6 h5 b6 c5 b5 g5 h3 g4 b7 a6 d3 e4 b6 g3 Bb2 g2 Nd2 e3 Ndf3 c4 Nh4 e2 Ngf3 g1Q Kd2 e1R Nh2 Bg7 f8R Qc7 f7 Ne7 f6 Ke6 d7 Qd6 d8B Nd7 b8Q Nf5 b7 Ng3 Qc7 Qdb6 b8N Rh6 Qf4 Re5 Ra2 Rg6 Ba1 a5 Na6 Qb8 Nc7+ Kd6 Ne8+ Ke6 Rh8 Ra7 f8R c3+ Kc1 c2 f7 Rc7 Kd2 Rcc5 Rh7 Rcd5 Bg5 c1B+ Kc2 Ba3 Kd2 Qc5 Rg1 Qc4 Rc2 Qb7 Rg2 Qb6 Rc1 Nh1 Rf2 Rf6 Rg8 Qb8 f8N+ Ke7 Nfg6+ Ke6 Rf8 Qcc8 Rf7 Qd8 Nd6 Qg8 Ne8 Baf8 Qfa4 Rf4 Rf5 Rb4 R5f3 Rb6 Qb4 Bf6 Rf7 B6g7 Qf4 Nc5 Rb7 Nd7 Ra7
R1N2Q1r/2r1Nqq1/BR5p/1b2b1Q1/BNn4p/3PPk2/2R5/BK1NnR1q b - - 0 1 illegal: Other
1N3Q1q/bBn2nBr/1k1rP2b/1Np3Rn/R1P2R1p/8/1q2Q1R1/Q1NQ3K b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bf8 fxg5 Bc5 h4 Be7 g4 Bb7 h5 Be4 Ra5 Bd3 Ra1 Bg6 hxg6 Bf8 Kf2 d5 Kg2 Kd7 e4 f5 b4 a5 c4 c5 g7 Kc7 b6+ Kc6 e6 h5 b5+ Kb7 e5 a4 g6 f4 g5 a3 e7 a2 e8Q d4 Bb2 d3 Nc3 d2 Nge2 h4 Nc1 Ne7 g8Q Nf5 g7 Nd7 g6 Rh7 Qh8 Nh6 g8R Nf6 g7 f3+ Kh2 f2 Bg2+ Nd5 Rf1 Qc8 Kh1 Nf7 e6 Bd6 Qf8 Ra6 Qe2 d1Q Qd8 Ka8 b7+ Ka7 b8N Nc7 Bb7 Qb3 Qd7 Bh2 Qd5 Kb6 Qdd1 Ka5 b6 Qd8 Rg1 f1N Nb5 Qa3 Bd4 Qb2 Rg5 Qe8 Rf8 Ng3+ Kg2 Qd8 g8R Nh5 Kh1 Bf4 Rg2 Bh6 R8g5 Qc8 Bg7 Qd8 Bd5 Qe8 b7 Rd6 Bc6 Kb6 Be4 Nd8 Rf4 Nf7 Rb1 a1B Bd5 Qc2 Rb4 Be5 Ra4 Qc8 Na6 Qb2 b8Q+ Qb7 Qa8 Qc8 Bb7 Qb8 Qd8 Qc8 Qf6 Qh8 Qf8 Na8 Qf5 Rd5 Qdc2 Bb8 Qcd1 Nc7 Qb1 Rd6 Qa1 Ba7 Nb8
5Nn1/3BQr1q/2bP4/Q3b3/bq3B1P/2rNBp1K/2NRnpN1/1RB1Rk2 b - - 0 1 illegal: Other
2r2krB/1K6/BR1P4/1NNnn3/Q1pNbQ2/R3p1q1/1N1B1bPR/1bq1B3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 b5 Kf3 c5 Ke4 h5 d4 e5 f4 b4 a4 h4 a6 b3 f6 b2 f5 h3 g6 h2 f7+ Ke7 a7 Qd7 a5 Qd8 f6+ Kd6 a6 Kd7 g7 Qe8 d6 Qd8 Kd5 e4 Nc3 b1B Na4 e3 Bd2 Bg6 Ne2 Qb6 Nb2 Bh5 Rb1 Qa5 Qa4+ Kd8 d7 Be7 f8N Qb6 f7 Bd6 Ne6+ Ke7 f8B+ Kf7 d8B Nd7 Bh4 Ne5 Bhe1 Nh6 g8Q+ Kf6 Qg3 Kf7 Bg7 Nf5 Qf4 Rg8 Bh8 Rb8 a8R Bg6 a7 Qc7 Ng3 Bh7 Ba6 c4 Nc5 Kf8 Ne2 Qg7 Qb3 Qg3 Qa4 Ng6 Kc6 Bb7+ Kb6 Rc8 d5 Ne5 Nd4 Be7 d6 Be4 Ncd3 Bh4 Nc5 Bc2 Kb7 Bg6 Ra1 Bb1 Rb8 Bh7 a8N Bg6 Bf6 Ne7 Ra3 Nd5 Nc7 Bgf5 Ncb5 Bfe4 Rg1 h1Q Rf1 Qhh3 Rh1 Qhg4 Rh2 Qd1 Ka7 Qc1 Rb6 Qg5 Kb7 Bf2 Nd1 Qh4 Nb2 Qg3 Bh8+
q1r5/N3nR2/1qP1Qb1N/B1NR1pkr/b1Q1QN2/1B4Pr/4K2p/n5QR b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 c4 Ke7 b4 f5 e4 a5 b6 d5 b5 h5 g6 a4 b7 a3 c6 a2 e6 Kf6 c7 h4 e7 d4 e8Q d3 g3 h3 b6 d2+ Ke2 h2 g7 Bb4 c5 Qd5 c6 Ra3 e5+ Kg5 e6 Rb3 e7 Qd6 Nc3 Kh6 Ne4 Be6 c8N Nd7 b8Q Ra3 b7 Bc3 Nc5 Qc7 Nh3 Bf6 Nf4 Ra4 Na7 Qb6 Qb3 d1R Qc4 Qa5 Bd2 Qb6 Ba5 Kg5 Qec8 Rh3 e8Q Rd5 Rd1 Ne7 g8N a1Q Nh6 Rd6 Rd5 Bf7 Ncd3 Nc5 Qe6 Nb3 Nc5 Rd8 Qc7 Rh5 b8R Rc8 Rb7 Qa3 Qce5 Na1 Qe3 Rh3 Qg1 Bh5+ Kf2 Bd1 Ke1 Bc2 Ke2 Rb4 Bg2 Ba4 Be4 Qa2+ Bc2 Qa3 Bb3 Rh5 Qa6 Rd4 Qc4 Rh3 Ng6 Rdh4 Nf4 Rh5 Rbd7 Qa6 Rb7 Qb4 Rc7 Qbb6 Qe4 Qab7 Qd7 Qa8 Qde6 Ng8 Rh7 Ne7 Rf7
3qQ1QN/1nr2b2/B1p1q1RB/QRPN4/1r6/k2p1n2/2n1bK1P/BB2R2R b - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 b5 gxh5 g6 f4 b4 e4 b3 f5 Ke7 e6 Kf6 e5+ Kg7 f6+ Kh7 axb3 Ba6 b4 Bc8 b5 Be7 fxe7 Kg7 e8B Kf8 b4 Ke7 c4 f5 b6 a5 b7 d5 b5 a4 b6 a3 h6 d4 h7 c6 Qb3 g5 Qd1 f4 Qe2 g4 Qc2 f3 Qg2 a2 Bh6 g3 Nc3 Na6 b8Q Ra7 b7 Nc5 Bg6 Nf6 Bb1 Nfe4 Nge2 Nd2 Nf4 f2+ Ke2 Rg8 h8B Rg4 Qg1 g2 Ng6+ Ke8 e7 Kd7 e8R Nf3 Re6 Rh4 Nd5 d3+ Ke3 Rf4 Qa8 Rg4 b8R Rc7 Rb5 Nb7 Qa5 Rh4 Qb6 Rf4 Be2 f1B Kf2 Rg4 Bd1 Be2 Bb3 Rh4 Rf6 Rg4 e6+ Kd6 e7+ Be6 e8Q Re4 Rf8 Bf7 Rg8 Rg4 Bc3 Re4 Nh8 Rh4 B1c2 Rf4 Rc1 a1N Bb1 Nc2 Re1 Rh4 Ba4 Rf4 Ba1 Rg4 Ra5 Rf4 Bb5 Rh4 Qa6 Kc5 Rg6 Rg4 Nf4 Kb4 c5 Kb3 Nd5 Rb4 Qb6 Bf1 Ba6 Be2 Rb5 Ka4 Kg3 Ka3 Qf2 g1Q+ Qg2 Qd4 Qg1 Qg4+ Kf2 Qe6 Qg5 Qdc8 Qgd8 Qcd7 Qg8 Qdd6 Qde8 Qd8 Qa5+
1q2Q2Q/NB1KR3/1P1bn3/3qP3/1RB1pb2/B1kN3p/2n3B1/Qbr1R1rR b - - 0 1 illegal: No proof kernel
nbRb2Nq/nB6/1Ppp1q1Q/1n2BQ2/1Bk2N2/R1N2Qrr/2PB4/1K5Q b - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 g5 a4 f5 axb5 Bb7 h3 Bf3 gxf5 g4 Nd2 g3 Nb1 Bg4 hxg4 Qg5 Rh5 Qe7 Rh1 Qd8 Kd2 Ke7 b4 h5 e4 a5 f4 c6 e6 Kd6 f6 a4 f5 a3 e5+ Kd5 b6 h4 b5 g2 b7 a2 g5 h3 g6 h2 f7 Rh7 f6 Qa5+ Nc3+ Kd4 b6 Bg7 f8B Qa6 e7 Nh6 e8Q Qa7 e6 Nf7 e7 Rh3 Qf3 Nd6 f7 Be5 g7 Nb5 g8N Na6 b8B Nac7 Nge2+ Kc4 Qc8 g1N Nf4+ Ne2 e8Q Qa3 Bb4 Qb2 f8Q Na7 Rg1 h1Q Qeh5 Bf6 Qh7 Bd8 Qfh6 Rg3 Bh3 Nd4 Kd1 Qh2 Bd2 Ndb5 Re1 Qf2 Re8 Qd4 Bg4 Qf6 Qhh1 Rh3 Qh6 Qh8 Nce2 Qbe5 Kc1 Qef6 Nc3 Rg3 Rb1 a1B Rb3 Bb2+ Kb1 Bc1 Ra3 Bb2 Na2 Be5 Rf8 Ne8 B8d6 Nec7 Nc3 Rb8 Bh3 Na8 Bc7 Bd6 Re8 Bf8 Be5 Bd6 Bg4 Rb7 Bf5 Bb8 Bh3 d6 Qf5 Bdc7 Rc8 Bd8 Qfg5 Rg7 Bd7 Rh7 Qf5 Rg6 Rc7 Rg3 Bc8 Be7 Bb7 Bd8 Qg7 Rh6 Rc8 Rhh3 Qh6
1N1Q3R/qbb5/p2qnr1p/1B1N3P/b1Nk1B2/Rnr1N3/K1B1PQ2/1R1R4 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 Kd2 Ke7 Kc3 Ke6 Kb2 f5 g4 d5 c4 a6 h4 h6 g6 f4 c6 f3 c5 f2 g7 d4 g5 Kd5 h5 d3 g6 d2 c7 Kc4 e6 Qe7 c6 Qe8 e7 Kc5 b6 Rh7 b7 Qd8 e8B Bg4 c8R Qd4+ Nc3 Be6 c7 Nf6 g8N Bc4 g7 Bd5 Nf3 Bb3 Rd8 Ba2 c8R+ Nc6 b8N Ne4 Ne5 Qd6 Nd5 Kd4 Ne3 Nc5 Nf6 Na5 g8Q Nab3 Qe1 d1B Bg2 f1Q Qf2 Rf7 N5c4 Ne6 Nfd5 Qg1 Bb5 Rf6 Be4 Qg7 Bd2 Qa7 Bc2 Be7 Rd7 Bd8 Rb7 Bb1 Ra3 Bc7 Qg5 Ba2 Rh8 Bb1 Qg8 Ba2 Qd8 Bb1 Bf5 Be4 Ka2 Bdc2 Rd1 Bf3 Nd7 Rc8 Nb8 Bh1 Rb6 Bf3 Nc3 Bb7 Ncd5 Na5 Bg6 Ba4 Bc2 Nb3 Bd7 Na1 Rbb1 Nb3 Bb5 Bb6 Na5 Rc3 Nac4 Bc7 Ng4+ Re3 Qf1 Rd3 Bf4 Na5 Nge3 Nb3 Re1 Rc3 Qf2 Rd3 Rg1 Rc3 Rgd1+
N4Q2/1QN1Q2P/4P3/3R1N2/B1qn3n/ppbNrRrk/q7/BBKbr1B1 b - - 0 1 illegal: No proof kernel
Bkr2nN1/5b1p/2Q5/Q2bpr2/1PRR1q2/3B1B2/RQK1PnR1/2B1Nrq1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 b4 fxg5 b3 h4 e6 g6 Qd7 g7 Nf6 g5 Qe7 g6 Qd8 axb3 Be7 b4 Ng8 b5 Bg5 hxg5 Ke7 Rh6 Kd7 Rh1 Ke8 d4 Kd7 Kd2 f5 d6 c5 d5 a5 b6 c4 b7 c3+ Kc2 e5 Nd2 a4 Ra2 a3 Bg2 f4 Ne4 f3 Rh4 f2 Bf3 Qc7 Nf6+ Kd8 d7 f1B Rc4 Ne7 g8B Ra4 g7 Nbc6 b8Q Bg2 g6 Qb6 Be6 Qd4 g8B Qf4 g7 Ng6 Bf5 Nf8 Bd3 Rb4 Qa8 Kc7 d8R Be6 Qd2 Bf7 Qa4 Rb8 d6+ Kb7 b3 Rc8 d7 Kb8 Qa6 Bg6 Be6 Bf7 g8R Bh1 Bed5 Nb4+ Kd1 Bg2 Ba8 Bh1 Qb2 c2+ Ke1 Bg2 Qc6 Bh1 Rg4 Rg8 Rg2 Rg5 Ng8 Rf5 Be3 c1R+ Kd2 Ra1 Kc3 Rf1 Bc1 Na6 b4 Nc5 Kc2 Ne4 Re8 Nf2 d8Q Qh4 Qa5 Qf4 Ra1 a2 Rd8 Be6 Rdd4 Bf7 Bfe4 Rd1 Nf3 Rf1 Rb1 a1Q Ne1 Ne6 Bf3 Nf8 Qd8 Qa7 Ra1 Qc5 Ra2 Qb6 Qce8 Qg6 Qc6 Qgg4 Rh2 Qg1 Qa5 Bg2 Bh5 Be4 Rg2 Bed5 Bf3
qR3Q1R/B1N1b1P1/1N2KR2/1Q6/3p4/1Nr2nq1/Pnpn1Br1/k1BbRB2 b - - 0 1 illegal: No proof kernel
5qnN/R1nKR1Pr/n1Q3R1/2QQBNk1/2bpP2r/q1bB4/4R2p/N4N2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 d5 Kf4 h5 b4 a5 e4 f5 c4 h4 g4 h3 e6 h2 Ke5 a4 b6 a3 b7 f4 b5 f3 b6 a2 g6 f2 g7 Rh3 c6 Qe8 g5 Rc3 c7 Na6 b8R Nf6 g8R Bd7 c8N+ Kd8 c5 Rh3 g6 Rh6 c6 Nh5 b7 Bc5 e7+ Kc7 Nf3 Ba3 Bd3 f1Q Nd6 Qd8 e8N+ Kb6 c7 Kc6 c8Q+ Nc7 Nfd2 Ng3 Nb3 Rh3 Bf4 Ra7 N1d2 Bb4 Ng7 Be6 Ngf5 Qf8 Nf7 Qf3 Re1 Rh4 Re2 Nh5 Nf1 Nf6 Nh8 d4 Qc2+ Bc3 Qd8 Bc4 Qd5+ Kb6 Re8 Qg3 Rg7 Ng8 Ree7 Qf3 Kd6 Qe3 Rd1 a1N b8Q+ Rb7 Qc1 Nc2 Qc8 Nb4 Kd7 Nba6 Be5 Ra7 Na1 Qf3 Qda8 Kc5 Rdd2 Rb7 Ra2 Qe3 Qc2 Qc1 Qa4 Qa3 Qc6+ Kb4 Qcb8 Qc1 Qba7 Nb5+ Qc7 Nc5+ Kc6 Qb2 Ra5 Qa3 Qcc8 Rd7 Re6 Rf7 Qcd7 Nc7 Qd5 Rd7 Rf7 Re7 Rff6 Rf7 Re7 Rfh7 Nc2+ Kb3 g7 Kb2 Rg6 Kc1 Qb6 Kd1 Ra7 N5a6 Na1 Kc1 Qbc5 Kd1 Rb2 Ke1 Rb6 Kf2 Rb2+ Kf3 Rbg2 Qb4 Re2 Qa3 Rge6 Kg4 Kd7 Kh5 Qac6 Kg5 Rg6+
2R3K1/1R4p1/Q1QqNpr1/nr3qBb/BNb1P2b/1Bk5/n4QP1/4Q1NB b - - 0 1 illegal: Other
Q1bbB1n1/4rpRB/1kq1q3/R1P5/6QK/3pr3/Q1BN1NrP/B3NN1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 g5 Kg3 d5 e4 Kd7 c4 Kc7 b4 a5 b6+ Kb7 h6 a4 c6+ Ka6 b7 d4 h7 g4 e6 a3 c7 a2 e7 Bh6 e8N Nf6 b5+ Ka7 e5 Nd5 b6+ Ka6 e6 Rf8 h8N Nf6 e7 Qd6+ Kh4 g3 Bb2 g2 Nf3 g1R Bd3 Qd8 Nbd2 Bd7 c8B Bg4 Nf1 Bf4 Bcf5 Ng8 Ne1 Bc1 Nf6 Ka5 e8B Na6 b8Q Qd6 b7 Nb4 Bh7 Ra7 Bc2 Qc6 Ng6 Bc8 Nf4 Kb6 Nfd3 Rg2 Nf2 Nd3 N6e4 Be3 Qg4 Bg5+ Kh5 Bf6 Rg1 Bd8 Qa8 Qe6 b8Q+ Rb7 Nh1 Nf2 Ned2 d3 Qbf4 Re7 Kh4 Qc6 Qe5 Qe6 Qee2 Qc6 Nhg3 Nh1 Nge4 Qe6 Nf2 Qc6 Rb1 a1Q Bd4+ Kc7 Rb5 Qaa6 Ba1 Qe6 Ra5 Qac6 Qe5+ Kb6 Qc3 Nh6 Qa3 Rg8 Qa2 Rg3 Qe2 Re3 Qd1 Rg6 Rgg5 Ng8 Qg4 Rf6 Rg7 Rg6 Qf3 Rg1 Qg4 Rg2 c5+
1n1R1r1k/1q1BqpRN/5BnP/bQrp1b2/B1R5/N1Q3P1/6R1/1b1K1Q1B b - - 0 1 illegal: No proof kernel
n2NKN2/k2NPN2/7b/Rnr5/B2q2Q1/1R2prP1/b1R2Bp1/B1RqbQ2 b - - 0 1 illegal: No possible last move
1QNb1r1r/2N1P3/4N2b/1q2RBqR/1nB1pBbP/5B2/2Q1p3/2KNknQ1 b - - 0 1 illegal: Other
1B4R1/4p1nN/3NqnK1/NQ1b1QR1/3q1P2/3BQPB1/prq3r1/B3b1Qk b - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 h5 gxh5 b5 a4 f4 axb5 f3 exf3 Bf5 f4 Bc8 f3 Kf7 Ke2 Kf6 Kd3 Kf5 h4 a5 b4 c5 d6 g5 h6 g4 h5 a4 b6 a3 b7 a2 h7 g3 b5 g2 h6 Be6 d7 Nc6 b8Q Ra3+ Nc3 Qa5 d8N Qa4 b6 Nd4 b7 Bg7 Qe1 Qa5 Nc6 Ne2 Nh3 g1Q Ng5 Qg2 Rg1 Qa4 Na5 Nd4 Qe3 Qh3 Qf8+ Nf6 b8B Bb3 Nce4 Rg8 h8B Ne6 h7 Bh6 Qe8 Qh5 Qb5 Nd5 Bcb2 Bg7 Bc3 Bf6 Bg7 Qf7 h8Q Be5 Qh4 Kg6 Rg2 Qf5 Nh7+ Qg4 Qg3 Kh5 Be2 Bf6 Rag1 Bh4 Ba1 Qh3 Bgc3 Nf6 Qh2 Bf2 Rg3 Kh4 R3g2 Rc8 Rg8 Ng7 Rg5 c4+ Kd4 Rd8+ Ke5 Rd3 Bb4 c3 Qg2 Rd6 d4 c2 d5 c1Q Be1 Qc2 Qg1 Rd7 d6 Bc4 Qg2 Rb3 Bf1 Rd8 d7 Bf7 Bc4 Rb2 Qf1 Qg4 Qfd3 Kh3 Qde2 Bg1 Bg3 Bf2 Q2d2 Kg2 Be2 Qcc4 Qdd3 Rc8 d8Q Be1 Qdd2 Qc6 Q8d3 Bd5 Nd6 Kh1 Qg6 Qb6 Bd3 Rcc2 Qde2 Rd2 Qge4 Qc2 Qg6 Qgc8 Qge4 Ne6 Kf5 Qd4 Kg6 Ng7 Qf5 Qe6 Qd1 Rg2 Qde2 Qc1 Q2f2 Qc2 Qg1+
k2Bn1QK/1q2p3/2Q4B/1Pnq2p1/3QN1QR/2n1B1r1/1bN1P3/1N1B1rbR b - - 0 1 legal: proof: g4 b5 c4 g5 h4 f5 gxf5 d5 cxd5 b4 h5 b3 axb3 Bd7 b4 Be6 b5 Bf7 Rh4 Bh6 Rh1 Bg6 hxg6 Bf8 f4 Kd7 Kf2 Kc8 Ke3 Kb7 Ke4 a5 b4 c5 d4 h5 f6 a4 Kf5 a3 f7 h4 b6 c4 g7 h3 Kg6 h2 d6 a2 b5 c3 d5 c2 f5 Rh4 d7 Rh5 d6 Nh6 Kh7 Qe8 d8Q Ra4 g8Q Qc6 d7 Rah4 f6 Qg2 Qe8 Rd4 d8B Ka8 b7+ Ka7 Be3 c1N Kh8 Qe4 Bg2 Rh3 Qc6 Qd5 Be4 Nd7 b8N Rg3 Bc2 Nf5 Na6 Nd6 Nh3 Ne8 Nf2 Nc5 Nb4 Rf4 Ne4 Rf1 Qd4 Bh6 f8Q Bg7+ Kh7 Bh8 f7 Be5 Qfh6 Bc7 f8B Bb6 Qce6 Ka8 Bd1 Qb7 Nc2 Qd5 Rg1 h1Q Kh8 Qg2 Rh1 Qb7 Nec3 Qgd5 Rh4 Ba7 Qeg4 Bb6 Nd2 Ba7 Rb1 a1B Qc6 Na2 Nce4 Nc3 Bh6 Bb6 Rb4 Bb2 Rh1 Bc7 Nb1 Bf4 Bc1 Be3 Rc4 Bf2 Be3 Bg1 Qgd7 Nf6 Qd3 Nh5 Ned2 Ka7 Rch4 Ka8 Qg4 Nf6 Ne4 Ne8 Qd4
1kr1N3/1QnP1BBR/1rRB3b/Q3K2b/qB2n3/1NQ3p1/2Pq1np1/1Q1R4 b - - 0 1 illegal: Other
NQ3q2/2NP1N1r/rR3p1B/Q1p3BN/2R1rR2/2K3nb/3PRn1k/2bB3q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Ke7 h4 c5 b4 g5 b6 a5 h6 g4 b5 g3 h5 g2 e6 Kd6 h7 Ke5 b7 Kf4 e7 Kg3 e8N a4 h6 a3 e5 a2 d6 Bg4 b6 Bf5 d7 Qf6 e6 Qd4 e7 Bg7 Nc3 Be5 Bb2 Be6 Nb5 Qh4 Rc1 a1Q Nh3 g1R Qa4 Bc3 Qa5 Bc4 Nbc7 Qa2 Nf4 Be5 Nh5+ Kf3+ Kd1 Bf4 Kc2 Ra6 Kc3 Nc6 b8Q Nf6 b7 Nd4 Na8 Ng4 Be2+ Kg2 Nec7 Re1 e8R Nf2 Bd1 Be5 Rf1 Kh2 Re6 Bg7 Re2 Be6 Rc2 Bh3 Rc1 Re8 h8B Re4 h7 Qf6 Rc2 Qd5 Rc1 Qff5 Ba1 Be5 Bg7 Qf6 h8N Nf5+ Kc2 Qd8 Bh6 Ng3 Bd4 f6 Kc3 Rh4 Nf7 Qh1 Bg5 Qf8 Bh6 Bf4 Be3 Bd6 Beg5 Be5+ Kb3 Bb2 Rc4 Bc1 Kc3 Bg4 Qa7 Bf5 b8R Bh3 Rb6 Re4 Qb8 Re7 Nh8 Rg7 Nf7 Rh7 Re8 Re4 Re7 Nd3 Rf4 Nf2 Re5 Rd4 Re3 Re4 Re2
rN1B1BR1/b1PBr2Q/5pq1/pR1QNQ2/3PR3/n2qn3/K2k2bB/2R4r b - - 0 1 illegal: No proof kernel
1KR2nQ1/2PrQ3/pQB5/k2NR1PB/q7/p4BQ1/r2n1NbB/R4qbn b - - 0 1 illegal: Other
K7/N1pRQQ1r/3b2nP/3r2B1/3NBkB1/qRBpq3/2RPRb2/q1n3Q1 b - - 0 1 legal: proof: g4 h5 gxh5 e5 c4 b5 cxb5 e4 b6 d6 a4 e3 b4 Qd7 a5 Rh7 a6 Ke7 b5 Bb7 axb7 Rh8 fxe3 Qd8 e4 Kd7 e5 Ke8 Kf2 Kd7 Kf3 Ke6 Ke4 a5 h4 g5 h6 g4 h7 f6 h5 g3 h6 a4 Bh3+ Kf7 Kd5 Kg6 e4 Kg5 e6 f5 e5 g2 e7 a3 e8Q a2 e6 f4 e7 f3 Qf7 f2 e8B f1Q Na3 Ra4 Rh2 Qe2 Bb2 Qh5 Bc6 Qd7 Ne2 g1B Rc1 a1Q Bg4 Bd4 Qg1 Ra6 Rc2 Bc3 Nd4 Qf1 Re2 Ra5 Ba1 Na6 b8R Qf6 b7 Qh3 Rd8 Qe8 b8Q Nc5 b6 Kf4 b7 Qee3 Rd7 Nd3+ Nab5 Nc1 Qbe8 Bb2 b8R Ne7+ Kc4 d5+ Kc5 Ng6+ Qee7 Ra2 Na7 Ra5+ Kb4 Rb5+ Ka4 Ba3 Bc3 Bd6 Ba8 Rc5 Rb5 Qhg3 Ka5 Qgf3 Ka6 Qg3 Ndc6 d4 Kb7 Rd5 Rb3 d3 Nd4 Bc5 Qee8 Bfd6 Kb8 Qgf2 Bc6 Qe7 Ka8 Qfe3 Bb7 Rg8 h8B Rg7 Qd8 Rh7 Qdf8 Rf5 Be4 Rd5 Nf5 Qfd4 Bf6 Qa4 Nd4 Qe5 Ba5 Qa3 Q8e7 Bb6 Nf3 Qeb2 Bac3 Qba1 Nd4 Qg3 Nb5 Bf2 Nd4 Qe3 Bg5#
kqR5/2prNPR1/K1Pb4/Br3n1N/BQ3n2/pR6/BB1b2NN/4Qrq1 b - - 0 1 legal: proof: g4 e5 d4 b5 dxe5 g5 a4 f5 axb5 Bb7 h3 Bf3 gxf5 g4 Nd2 g3 Nb1 Bg4 hxg4 Qg5 Rh5 Qe7 Rh1 Qd8 Kd2 a5 Kd3 h5 Kc4 h4 f4 h3 b4 a4 e4 g2 e6 d6 e7 Kd7 e8B+ Kc8 g5 Kb7 f6 h2 g6 a3 g7 Ne7 g8N Nf5 e5 Ra5 b6 Rd5 b5 Rh3 e6 Rh4 e7 Rh7 Nc3 Qc8 Nf3 g1B Rb1 Qe6 Ne2 Bf2 Rg1 h1R Nh2 Rf7 Rg7 Ka8 b7+ Ka7 b6+ Ka6 Ba4 Qe3 e8N Bg3 Qe1 Ne7 f5 Rg1 Nf4 Nc8 Ng2 Nc6 b8R Ra5 b7 N8e7 Rc8 Ka7 Rb6 Be5 Bb2 Nb4 c3 Rh1 Bd3 Bf4 Bb1 Qg1 Rb5 Nbd5 Ba2 Qe3 Rb3 Rf1 b8Q+ Ka6 Bd7 Qg1 Ba4 Bc1 Qb4 Ka7 Rg4 Nf4 Ng7 Be3 Nh5 Re5 Rg5 d5+ Kb5 Rh7 c4 d4+ c5 Rd5 Qc4 Rg7 Rg4 Rg5 f7 Rd7 Qcb4 Kb7 f6 Rgd5 Rg7 Nf5 Qc4 Be7 f8B Ka7 f7 d3 Rc3 d2 Rb3 Kb7 Rh7 Re5 Bg7 Bd6 Ne7 Rd5 Bgc3 Ka7 Rg8 Re5 Rgg7 Ka8 Ka6 Rd5 c6 Rc5 Ba5 Re5 Rb4 d1Q Ba1 Qd5 Bb2 Bd2 Rb3 Qdc5 Qc3 Qb4 Rh8+ Qb8 Rc8 Rb5 Qb4
2bB1rNN/1PBP1B1K/2R3R1/4N2R/q4nnQ/2qn2N1/pb1p3R/Q1k1r3 b - - 0 1 illegal: No possible last move
6BK/Qp3N2/7b/3B1bk1/P3n1rn/4pQn1/NQ1RNBPq/1NQR2rq b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kd3 Qe8 f4 Ra6 a4 e5 Ra2 h5 Ke4 c5 d4 h4 d6 h3 g6+ Kf6 d5 c4 g7 h2 d7 Rh7 d8N Rh3 d6 Ra7 d7 Qe7 a6 Qb4 Be3 Qc5 Nc6 Qa3 d8N c3 Bf2 c2 Bc4 c1N Rd2 Nd3 Qc1 Ne1 Nb4 Nd3 Na2 Ne7 g8B Nd7 Ne2 Qd6 Rhd1 Ne1 Bb3 Nf3 Bbc4 Kg7 f6+ Kg6 f7 Bh6 f8Q Nh4 f5+ Kh5 f6 Nef5 f7 Kg6 Bd5 Ra8 a7 Rb8 a8Q Rg3 Rh1 Kg5 Qd1 Qc7 Re1 h1Q Qb4 Qd6 f8Q Rg4+ Nf4 Qc7 Qa7 Qd6 Qb2 Nf6+ Kd3 Bd7 Ne2 e4+ Kc4 Qf4 Qfa3 Ra8 Qf3 e3+ Kd3 Rc8 Nf7+ Kh5 Rg1 Rc1 Qdc2 Rd1 Qcc1 Ne4 Re1 Qfh2 Rf1 Nfd6 Kd4 Ng3+ Ke5 Bf5 Kf6 Nde4+ Ke7 Bg5+ Kf8 Re1 Kg7 Bh6+ Kh8 Kg6 Nd8 Kg5 Nf4 Re2 Rfd1 Re1 Ne2 Rg1 Nf7+
1R4b1/pRqqQ2r/pbBQ1Nk1/5NB1/N5Nr/3nr1R1/1PQ1P1R1/K6n b - - 0 1 illegal: Other
N1Qr1n2/2nq2n1/1R2QN1B/bB1b3k/6N1/3KRppP/nBQ2P2/1NQ2r2 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 d5 c4 f5 e4 Kf7 c6 g5 h6 Kg6 b6 a5 h3 g4 c5 g3 c7 f4 c6 d4 e6 d3 b7 a4 h7 a3 e5 a2 e7 Qd4 e8N Kg5 e6 Ne7 Nf3+ Kh5 Nh2+ f3 Qc2 Ng6 e7 Qd7 Ng4 Na6 b8N Rg8 h8B Bb7 c8Q Nc7 Bhb2 Bh6+ Kc3 d2 Bb5 Nf8 Na6 d1N+ Kc4 Ra7 Re1 Bd2 Re3 Ba5 Bd2 Nc3 Nef6+ Kh4 e8Q Rh8 Ng8 Ra8 Qe6 Kh5 Na3 Ra7 Rb1 a1N Qc1 Nb3 N8f6+ Kh4 Qc2 Nd4 Kd3 Na2 Qc1 Qe8 Qc2 Nf5 Qc1 Ng7 Qc2 Nd5 Nc7 Qd7 Na8 Ra6 c7 Rc6 Qa4 Rc1 Qc2 Kg5 Re2+ Kg6 Bh6 Rf1 Re3 Bc6 Qb7 Rg8 c8Q Rh8 Qb6 Nc7+ Qd4 Bd5 Qdc4 Nh7 Qc1 Rf8 Q4c2 Rd8 Ra1 Nf8 Nb1 Nc3 Ra3 Na2 Rc3 Qf7 Rc6 Qd7 Ne4+ Kh5 Ra6 Bc3 Rb6 Ba5 Nef6+
qRQNB1RQ/1n1Q1R2/2K2BN1/2B5/r2p1pb1/n1PQR1Pn/7n/2r1bk2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 Kd4 Kf5 Kd5 Kg4 e4+ Kg3 b4 Kf2 g3 f5 b6 a5 c6 h5 c3 a4 b5 h4 g6 a3 e6 h3 b7 h2 e5 f4 c7 a2 g7 d6 b6 Ra6 e7 Ra8 e8Q Bg4 e6 Nh6 g8R Na6 b8B Qd7 Qh5 Nf5 c8Q Rh6 b7 Qe7 Na3 Qg5 e7 Qf6 e8Q Nh4 Nc4 Nc5 Ne2 Nf3 Nd4 Ra6 Rb1 a1N Ba3 Nc2 Ne5 Ra4 Bb5 Bg7 Bb4 Na3 Re1 h1N Ng6 Qh4 Ne6 Bd4 Bd7 Qh3 Ba7 Qg2 b8R Be3 Rb7 Bd2 Nd8 Rh7 Qe4 Re7 Bb5 Nh2 Qh8 Rd7 Re3 Be1 Bc6 Kf1 Rb8 Rb7 Be8 Nf2 Rb2 Nh3 Qd2 Nd3 Bd4 Nc5 Bf6 Rb6 Rb7 Rb5 Rf7 Rb8 Kc6 d5 Kd6 d4 Qeb7 Qf3 Qbd7 Qa8 Kc7 Nb3 Qd1 Na5 Bc5 Rb6 Rb1 Rb2 Qd2 Rc2 Rb8 Nb7 Kc6 Rc1 Qd3+
3B3k/2q4R/K1nQ2r1/Q1r1R3/bp1PN1BR/N1BR1Qb1/1Q2Pp2/1n3rr1 b - - 0 1 illegal: No possible last move, all moves rejected
QbQ2rR1/qn4n1/2KNb1N1/8/p1N1PpR1/BQ2rP1B/3BBk2/Qn1n4 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 h5 gxh5 c4 dxe5 c3 bxc3 Rh7 c4 Rh6 c5 Rh8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 Kg4 h4 g5 c4 a5 f3+ Kg3 e4 f5 h6 g4 e6 a4 e7 d6 e8N Bg7 c6 Bd4 b6 Bf6 c7 Bd7 c8B Rh7 h5 Ra6 c5 Rh8 c6 Qe7 b7 Rb6 h7 Kf2 c7 g3 h6 g2 Qb3 Be5 Bd2 Na6 b8B Nc5 Ne2 g1N Rh4 Nb7 Nf4 Ne2 Ng6 f4 Rg4 Bf5 Na3 Nc3+ Kc4 Qg7 Be2 Nf6 Rag1 Rf8 h8Q Nb1 h7 Nh5 Kd5 Rb4 Nc4 Be6+ Kc6 d5 Qg8 d4 h8Q d3 Ned6 Qh7 Bd7 Ng7 c8Q Rb5 Bc7 Rb4 Ba5 Rb5 Bc1 d2 Ba3 d1N Bd2 Rd5 R1g3 Rd3 Qa8 Re3 Rg1 Rf7 Qgc8 Rf8 R1g3 Bd4 Rg1 Ba7 R1g3 Bb8 Rg1 Nf5 Qa1 Qe7 Rh1 Ng7 Rh8 Qd8 Rg8 Qa5 Rg5 Qa7 Rg3 Bf7 Bh3 Be6 Rg4
Q1N1NQ2/N7/kr2qR1n/1RPbQ1bb/1rB5/K5pP/pBb2N2/R2n3Q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 Kc3 g5 Kb3 f5 c4 d5 e4 Kd7 c6+ Kc7 c5 g4 h6 g3 h7 f4 e6 a4+ Ka3 f3 b4 d4 e5 d3 e7 f2 e8Q d2 e6 Ra6 e7 Bh6 Nc3 Bg4 b6+ Kc8 c7 Kb7 c8N Qd6 b5 Qe6 Bb2 Nd7 Qf8 Be2 e8N Ne5 Nh3 Bh5 Bc4 f1B Nf2 Bg2 h3 Bg5 Rf1 Bd5 Qdf3 Nh6 Qh1 Rg8 h8Q Neg4 Qe5 d1B Qh8 Kb8 b7 Ne3 Qe5+ Rd6 Nd3 Rg6 Rf6 Bc2 Nf2 Rg8 Ne7 Ka7 b8R Nd1 Rb7+ Ka8 b6 Rg7 Nc8 Rf7 Rg6 Rf4 Nb5 Re4 Rf6 Rf4 Kb4 a3 Nba7 a2 Ka3 Rc6 Rc7 Kb8 b7 Rd6 Rc6 Rg4 Rb6 Re4 Qf5 Rf4 Rb5 Rb6 Be2 Rb4 Bc4 Bf7 Ned6 Bh5 Qe5 Kc7 b8Q+ Kd7 Qa8 Kc7 Qc6+ Kb8 Qce8 Kc7 Qd8+ Kb8 Ne8+ Kb7 Qdd6 Ka6 Qb8 Bg4 Qa8 Be2 Rc1 Bh5 Ra1
1n6/Q1B1r2b/NR1b2Pn/1bQp1R1Q/qrB5/b2Q1N1N/K1NP1pB1/2k5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qe7 c4 Qf6 c5 Qd8 g4 Ke7 e4 Ke6 c4 a5 c6 h5 c7 f5 c5 a4 b6 h4 c6 a3 g6 a2 g7 f4 b7 d6 g5 h3 g6 h2 Na3 f3 Bg2 Ra6 Nc2 Nh6 g8B+ Nf7 Nh3 Rh5 Bb2 Rh8 Rb1 a1B Rf1 Nd7 b8Q h1B Qa7 Bb7 c8Q Ra3 c7 Qe7 Qd8 Nb6 c8Q+ Nd7 Qcc5 Ra2 Bc3 Nb8 Ba5 Ba8 Bc7 Qd7 Rb6 Rh7 Qe2 Qb5 Kd1 Rb2 Kc1 Rb4 Qg5 Qa6 Qd3 Bc6 Qh5 Bb2+ Kb1 Ba3+ Ka2 Qa4 Rf2 Bb5 Rf1 Ke7 e6 Kf6 e7 Nh6 Rf2 Rf7 e8N+ Ke6 e5 Be7 Re2 f2 Nf6 Bf8 Ne4 Be7 Nhg5+ Kf5 e6+ Kf4 Re1 Bf8 Nf3 Re7 Neg5 Kg3 Bh3 Bg2 Re5 Bf1 Qb3 Bfc4 Bg2 Kf4 Bf7 Kg3 Rd5 Kf4 Nh3+ Ke4 Rf5 Bd5 Ka1 Bdc4 Qb1 Kd3 Qb3+ Ke2 Ka2 Kd1 Bg8 Kc1 Bf7 Rd7 e7 Be6 e8N Re7 Bd8 Bec4 Nc7 Be6 Na6 d5 Be8 Bg8 Bc7 Bh7 Qd3 Rg7 Bd7 Bd6 Bc8 Re7 Bb7 Be8 Bc6 Bd7 Bb5 Bc6 Bc4 Bd7 Re5 Bb5 Rf5
3b3R/2QqbN1b/1Rr3pB/3Q1Q1r/1P1kNn2/K1pB3b/n2P3B/2Q1R2B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Ke7 h4 c5 b4 f5 h6 a5 b6 f4 h5 a4 d6+ Ke6 h7 a3 b7 g6 d7 f3 h6 a2 Nh3 c4 Bb2 Ra6 Bd3 Rb6 Ng5+ Ke7 e6 Kd6 e7 Na6 e8Q Nc7 b8B Qe7 d8Q+ Qd7 e5+ Kd5 e6 Rb7 e7 Na8 Nf7 Nb6 Bh2 Na8 Qc7 Rb6 Qed8 Nf6 e8B Rc6 Nc3+ Kd4 Qc1 f2+ Kd1 f1B Kc2 Bh3 Re1 Nd5 Ne4+ Nc3 Qg5 Be7 Qf5 Rf8 h8R Nb6 h7 Nd5 Ne5 Nf4 Nf7 Qd8 Bd7 Ba6 Be6 Qd7 Bd5 Rc8 Neg5 Rb8 Bh1 Rb5 Re6 Bc8 Ne4 Bd8 Rb1 a1B Rf6 Rcc5 Rb6 Rc6 Re8 Be7 h8Q+ Re5 Qhh5 Ba6 Ba3 Na2 Rh8 Bc3 Bb2 Bb7 Qf3 Ra5 Q5g4 Rh5 Qf5 Ba6 Ba1 Bd8 Qb2 Bb5 Re1 Ba4+ Kb1 Bb3 Qc1 Bb2 Ne5 Kd5 Qfd1 Bd4 Bc3 Be3 Kb2 Bc5 Ka3 Bce7 Ba1 Ne2 Bd4 c3 Be3 Bc4 Bef4 Kd4 Bh6 Bg8 Nf7 Nf4 Qb3 Bh7 Qbd5+
2Rq1r2/2n3B1/1RQkBQpR/PR3n2/1b1B4/1nP1NQ2/1r4pK/1b1QN1n1 b - - 0 1 illegal: Other
1b2K1QB/1b1R1n1N/4P3/3BR1q1/5bpP/3Qp1b1/Q1n2RrB/1NkrRB2 b - - 0 1 illegal: No proof kernel
knrQN1n1/1b1RpP1Q/1B4K1/1N1nR1n1/2B1P3/2R1N3/1BR1p1B1/b1rq4 b - - 0 1 illegal: Other
k1rNr3/n1QPpb1B/2q3BP/KN4B1/Nr2R1Qb/1N1n3R/1p3Q1Q/6r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kd7 d4 c5 Kd2 Kc7 Kc3 g5 f4 b5 h4 Kb7 h6 c4 Kb4 g4 d6 g3 d7 g2 h7 c3 h5 c2 a6+ Ka7 a5 Bg7 f6 Qf8 d8N Nd7 d5 Bb7 f7 Kb8 f5 Ka7 f6 Nb8 d6 Bc6 d7 Nh6 Ne2 g1R Nbc3 Bf3 Na4 Bb7 Nd4 Ng8 Nb3 Bg2 Rh3 Bh6 Qg4 Rh1 Bg5 c1R Bd3 Rc2 Bg6 Rb2 Re1 Rg1 Re4 Qg7 f8Q Nc6+ Ka3 Kb8 f7 Na7 Kb4 Nf6 Qg8 Bf1 f8Q Bc4 Qd5 Rg8 Qc5 Bf7 h8Q Rbb1 Bh7 Qg6 Qf2 Bg7 h6 Nh5 Qh2+ Be5 Qhg7 Bg3 Qc3 Qc6 Qc4 Bd5 Qff2 Re8 Qcc5 Nf4 Qc1 Nc8 Bg6 Bf7 a7+ Kc7 a6 Bh4 Ka5 b4 Qcc5 Rb8 a8B Na7 Bb7 Rc8 Qb6+ Kb8 Bh7 Qc7 Bc6+ Qb7 Qc7+ Ka8 Bb5 Qc6 Bd3 Nb5 a7 Rb2 Ree3 Rbb1 Bdg6 Nd3 Nd2 b3 Re4 b2 Nb3 Rbf1 Re2 Rc1 Re4 Rc4 Ne6 Rb4 Qd8 Kb7 a8N Rg2 Nac7 Na7 Nb5 Rg1 Qdc7+ Ka8 Nd8
1Q1Q1N2/bQ1pN1r1/2n2K2/1b2RRR1/1Nn3B1/1RQ3P1/kpPn1rq1/1n4B1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 Kf7 Kf3 h5 Kf4 b5 Ke5 h4 f4 h3 a4 e6 g3 h2 c6 b4 g6+ Ke7 g7 b3 f6+ Kf7 f5 b2 c7 Na6 Bh3 Rh4 Qf3 Rd4 Ne2 Rf4 Qc3 Bc5 Nd4 Nb8 a6 Nh6 g8R Ba7 a5 Rf2 Re1 h1N Nc6 Qe7 Nb4 Nc6+ Ke4 e5 Bg4 Qd6 Ra3 Qd2 Rb3 Qe2+ Kd5 e4 Rg5 e3 Ke4 Kf8 f7 Ke7 f8N Kd6 f6 Nf5 f7 Qf1 Bd2 e2 Be3 Qh3 Bd4 Ne3 Bb6 Bb7 c8Q Nc4 Qd8 Rb8 Ng6 Ra8 f8R Qg2+ Rf3 Rc8 Kf5 Rb8 Kf6 Ba8 Qh8 Rg8 Rff5 Rg7 Qd8 Bb7 Nf8 Ba8 Rf1 e1N Be3 Nf3 Re1 Bb7 Bd4 Nfd2 Re5 Rf3 Bg1 Nf2 Re7 Nd1 Re5 Bb8 a7 Ba6 a8Q Rf2 Qa7 Bb5 Qb7 Ba7 a6 Qh2 Qf3 Qg2 Qe3 Nc3 Qe1 Bc5 a7 Bd4 a8Q Ba7 Nd5 Kc5 Qab8 Ne3 Ne7+ Kc4 Ra3 Kb4 Rb3+ Ka4 Na3 Ncb1 Nc4 Nef1 Ne3 Nc4 N3d5 Nfd2 Rb4+ Ka3 Rb3+ Ka2 Qe3 Re2 Qc3 Rf2 Nb4+
kR1r3Q/1N1pPp1n/4QN1B/r2N4/1b2QP1K/2Nnr3/2q1R1B1/1br2R1R b - - 0 1 illegal: No possible last move, all moves rejected
R2B4/2Pn1Q2/Bb1rQNPb/Q4K1R/4N3/n3k1bQ/B1p1b1pr/N3N1q1 b - - 0 1 illegal: No proof kernel
bbkNRBbr/1P5N/3Q3q/Q2b4/Nn3np1/RQ2KBp1/2r1P2R/1Q1N4 b - - 0 1 illegal: Other
BR1nnb2/1p5N/2NQ2r1/1N2Q3/b1nP2R1/BR5P/K4p1n/R1kNr1Bq b - - 0 1 illegal: Other
R4R1b/1p2Qq2/1k1NB2B/p1R1P2b/r2r1n2/3BK1BP/1n1nn1Q1/1Q3N1R b - - 0 1 illegal: No proof kernel
1b2K3/Pn1QQn1R/1kNbN1Q1/5B2/bN3rR1/brR1pq1p/5BP1/NQ6 b - - 0 1 illegal: No proof kernel
Q5Q1/p3BQ2/1N1q2NN/1p6/b1B1Bn2/NPn1PR2/knK2nQ1/b3r1Rr b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Ne7 fxe5 Qd7 a4 Qd6 a5 Qb6 axb6 Ng8 h4 Kd7 d4 f5 Kd2 g5 e3 c5 e6+ Kd6 e7 g4 e8B f4 b7 c4 h6 c3+ Kc2 g3 h5 g2 h7 f3 h6 f2 Nf3 g1Q Nfd2 Qg2 Qf3 Bd7 Rh3 Qh2 Qg2 Bg7 Bc4 f1N Na3 Bg4 Bc6 Na6 b8Q+ Nc7 Qb7 Nf6 Rf3 Ne6 Qf7 Nf4 Rb1 Rhc8 h8N Ne4 h7 Nfg3 Ng6 Nh1 h8Q Nhf2 Qh7 Rh8 Qhg8 Rd8 Ba8 Rd7 Bb7 Qg3 Qa8 Rh1 Qag8 Kc7 d6+ Kb6 d5 Kc5 Bc6 Rc7 d7 Kb4 d8Q Be5 d6 Re1 Qff6 Rh7 d7 Rhh1 Qa8 Qh2 Qff7 Qh6 Nf8 Qd6 d8N Ka4 Ng6 Be6 Bd3 Bh8 Ra1 Ba2 Ndc4 Bb3+ Kb1 Kb4 Nb6 Ba4 b3 Bd4 Bc4 c2+ Ka2 Nc3+ Kb2 Bf6 Be4 Bd4 Bd2 c1N Kc2 Ncd3 Rb1 Nb2 Rd1 Re2 Rg1 Re1 Qc7 Qc6 Nf7 Qd6 Nh6 Nbd1 Bc1 Na2 Bb2 Bh8 Bf6 Bg7 Bd8 Ba1 Nb1 Nac3 Qcf7 Nb2 Nd2 Ka3 Nb1+ Ka2 Na3 Nb1 Bh4 Nc3 Be7
3bB1Q1/1Qq1p3/1Bb1P3/Q1rN3B/p1R1PN1K/qr4rR/1qNkB1Qn/8 b - - 0 1 legal: proof: c4 g5 f4 d5 cxd5 b5 h4 b4 hxg5 b3 e4 Bd7 axb3 Nc6 b4 Bh3 b5 Ne5 fxe5 Bc8 Kf2 Kd7 Kg3 f5 b4 a5 d4 c5 g6 h5 d6 Ke6 d5+ Kd7 b6 a4 b5 c4 b7 f4+ Kh4 c3 b8Q f3 g4 f2 b6 c2 g5 Ra5 g7 Rh7 e6+ Ke8 g6 Bd7 b7 Rh8 Be3 c1Q Ne2 Nh6 g8B Qa3 g7 Ng4 Qc2 Nh2 Nf4 Rc5 Nc3 Bc6 Be2 f1Q Rc1 Qg2 Qb2 Qc8 d7+ Kd8 Bf7 Rg8 Qa7 Kc7 d8N Kd6 b8Q+ Qc7 Qa5 Ke5 d6 Qc8 d7+ Qc7 Q8b7 Qf2+ Kg5 h4 Be8 h3 Kh5 Qg2 Bg1 Qf2 Ncd5+ Qd4 Qa2 Qa1 Kh4 Q1b2 Ne3 Kd4 B8h5 Rh8 g8B Bg7 Bf7 Rg8 Be8 Be5 Rc3 Rg3 Rc1 Qab4 Nc2+ Kc3 Bf2 Kd2 Bg1 Bd5 Nc6 Bc3 d8Q Q4a3 N6b4 Be5 Qdb8 Bc6 Nbd5+ Bc3 Qaa7 Ba5 Bd4 Qd7 Qaa8 Bd8 Qe5 Qc7 Bf2 Rcc3 Bb6 Rc5 Qh8 Nf1 Qg8 h2 Rg1 Rb3 Rg3 h1R+ Rh3 Rg1 Qaa7 Nh2 Qa5+ Qc3 Qb2 Qcb4 Qbg7 Rg2 Qg4 Rgg3 Qf3 Qc3 Qg2 Qcb4 Nd4 Qb2 Rc4 Q4c3 Nc2 Qb4 Rc3 Q4a3 Rc4+
3r1QBn/5Q1B/4N1n1/4Qb1k/N3pB1R/1q2P1Bp/1b1PKN1R/n1q3qQ b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 b4 e5 d6 f5 e3 h5 d7+ Ke7 b6 c5 b7 f4 b5 f3 b6 f2+ Ke2 a4 Nh3 a3 Nc3 c4 Rh2 a2 Bb2 h4 Na4 Nc6 b8Q c3 b7 Qe8 d8N c2 Ne6 Nh6 g8B c1Q g7 Nf7 g6 Kf6 Bh7 Bb4 g8Q Ne7 g7 Bc3 Qf8 e4 g8Q Ng6 Qg3 Qd7 b8B Qd5 Bf4 Qb3 Ba3 Bd7 Bad6 Bb2 Qgg7+ Kf5 Qf3 Bc8 Qh1 Kg4 Qe5 Bd7 Qc2 Rg8 Qc7 Nfh8 Bg3 Bc8 Qcf7 Bd7 Rb1 a1N Ng7 Qcc3 Q8e7 Be6 Q5f6 Qe5 Qfe8 Qbc3 Kd1 Qc6 Bc4 f1Q+ Be1 Qed5 Bf4 Qcd6 Qe5 Q5c5 Bb3 Qg1 Ke2 Bf5 Q7d7 Rf8 Bbg8 Qdd5 Ne6 Qg3 Qdf7 Kh5 Qee7 Re8 Qef8 Qb3 Bf2 Qg5 Rg1 Qc1 Rgg2 Qd8 Rg3 Qg1 Rg4 Qc8 B2g3 Qcc1 Nf2 h3 Qd5 Rb8 Qe5 Rd8 Rh4#
1B1k4/K1Br4/Bp2R1rN/RP1PnpR1/3N4/Bq3Qr1/1Q2Q3/2qQnbq1 b - - 0 1 illegal: No possible last move, all moves rejected
1B1n1K1N/pn1p1B2/PN1R1NB1/Q1NBR1rq/2Q4b/2nb2k1/7P/2qR3b b - - 0 1 illegal: Other
n1B1b3/qN1p1Q2/2PQQRnK/p2P1N2/3B1N2/3bBq2/4Nb1B/1knR1r2 b - - 0 1 legal: proof: e4 c5 a4 h5 g4 a5 gxh5 b5 b4 f5 bxc5 b4 exf5 Ra7 Bg2 Rb7 Bf1 Rb5 axb5 Bb7 Bg2 Ba6 Bf1 Bc8 Ke2 Kf7 Ke3 Kf6 Kf4 b3 h4 b2 d4 g6 c4 e6 c6 Bb7 c5 Be7 h6 Ba8 c7 Nc6 c8N Na7 d5 Rh7 h5 Rf7 c6 Rh7 b6 Rh8 b7 Qe8 b8B Qf7 h7 Nb5 h6 Bb7 Be3 Bb4 Nd2 b1B Ne7 Nc7 Ne2 Na8 Qe1 Ba6 Nc4 Bc5 Nd6 Bad3 Nb7 e5+ Kg4 g5 f4 Bbc2 Rd1 e4 Bd6 Qf8 Kh5 g4 Rh3 Ba7 Rf3 g3 Rf2 g2 Bc7 Kf7 f6 g1Q Nf5 Ne7 Rf3 Rg8 h8B Ng6 h7 Qa3 Kh6 Rf8 Bg7 Qf2 h8Q Qc5 Qh7 Qg3 Rf2 Qf3 Nh4 Qb6 f5 Qa6 Bcf4 Bc5 Bh2 Qa7 Bc1 e3 Qg8+ Ke8 f7+ Ke7 Bd4 Bb6 Ng1 e2 Bce3 Bc5 Qb4 e1N Ne2 Bb5 Qa3 Nd3 Qb4 Nc1 Qe1 Re8 f8N Bbd3 Ne6 Rf8 N6f4 Bb6 Nc5 Kd6 f6 Be4 f7 Bcd3 Qh7 Bf5 Qg7 Bg4 Qh7 Bh5 Nb7+ Ke7 Bc5+ Kf6 Nf5 Ke5 Bcd4+ Ke4 Qg8 Bd8 Qb4 Bh4 Qd6 Bg3 Rg2 Bf2 Rg1 Rc8 f8Q Re8 Qff7 Rf8 Qfe6+ Ne5 Rg3 Bb1 Rg6 Qh1 Nh3 Bg3 Neg1 Bh4 Ne7 Rf4 Ba6 Rf1 Rf6 Qf3 Qg7 Bf2 Nf5 Be8 Nf4 Bc2 Nge2 Bb1 Qeg8 Ng6 Nd8 Bc2 Bc8 Bb1 Nh5 Bc2 Nb7 Bb1 Re1 Kd3 Nhf4+ Kc2 Q7h7 Nd3 Rd1 Nc1 Bc5 Kb2 Qge6 Bd3 Bcd4+ Kb1 Qhf7
BRQ3QR/3P2K1/1p1B1r2/3pqN1b/1PqqR2B/3k1nB1/n1r1N3/2nNN3 b - - 0 1 illegal: No proof kernel
N1q1N3/3R1R1n/Bp1Q1B1r/k1nQPr2/2bNnQ2/1P1p4/K5Bq/1BN3q1 b - - 0 1 illegal: No extended proof kernel
1B3B1n/r1R2NN1/BRb1q1nQ/p4n2/R1B3N1/1p4NK/P1P1Qq2/3bb1k1 b - - 0 1 legal: proof: g4 b5 b4 c5 bxc5 e5 d4 a5 dxe5 f5 gxf5 g5 h3 g4 h4 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 e4 Kf7 f4 d5 Kf2 h5 Kg3 d4 e6+ Kg7 e7 d3 e8N+ Kh7 g6+ Kh6 c6 b4 c7 d2 e5 Be6 c8R Rh7 g7 Qg5 f6 Bc5 f5 Nd7 f7 Qe3+ Nf3 Nf8 f6 Bd5 e6 Ng6 f8Q Bc6 f7 N8e7 Nc3 Nh8 Ne2 Neg6 e7 Qe6 Nh2 Kg5 g8B b3 Ng7 Ba3 e8N Bb4 Rc7 Bc3 Nd6 h4+ Kf2 h3 Ng3 Kh4 Ba6 Bb4 Qe2 d1B Bf4 Be1+ Kf1 Rh5 Rg1 Rb5 Rg2 Rb7 Rf2 Ra7 Be5 Qc8 Rf4 Qd7 Ra4 Qe6 Nge4 g3 Ng4 g2+ Kg1 Bd2 Ng3 h2+ Kf2 h1N+ Kg1 Be1 Kh2 Kg5 Kh3 g1Q Qe8 Ra8 f8B Qf2 Qb8 Ra7 Qb6 Qd7 Bgc4 Qe6 Bd4 Kf4 Nf7 Qf3 Bg1 Qfe3 Bh2 Qf2 Qd2+ Kf3 Qb5 Be2 Qh6 Bd1 Rb1 Bc3 Qe5 Be8 Ne2 Qc8 Ra3 Ng3 Rd7 Nf5 Ra4 Bb4 Bg3 Bc3 Rb7 Bc6 Rb6 Qd7 Bf4 Qe7 Ng3 Be2 Rd1 Qe6 Rd7 Bd1 Qc5 Bd2 Bb8 Be1 Qe5 Qd2 Nf6 Kf2 Ng4+ Kg1 Rc7 Qf2 Qe2
1Nk1r1N1/1b1R2q1/QKnpPBQ1/7n/r4R1q/pN2B3/1BBPQ3/2qQ2r1 b - - 0 1 legal: proof: b4 h5 f4 e5 fxe5 b5 g4 Be7 gxh5 Na6 a4 Kf8 axb5 Qe8 b6 Qd8 c3 Nb8 b5 Bb4 cxb4 Ke8 Kf2 f5 Ke3 c5 h4 a5 e6 g5 b7 a4 e7 g4 h6 g3 h5 a3 b6 g2 b5 c4 Kd4 f4 Kc5 f3 e4 c3 h7 c2 e5 f2 h6 Nf6 Nc3 Ra5 Nd5 Ra7 Nf3 g1R Nd4 Rg3 Nb3 Rg6 Bb2 Ng4 Nf6+ Kf7 Ng8 Ke6 e8Q+ Kf5 e6 Ne5 Bd3+ Kg5 Be4 c1Q+ Bc2 Nbc6 b8Q f1Q b7 Ra6 b6 Nc4 Qd6 Qh3 b8N Ra8 b7 Qg4 Rf1 Ne3 Rf4 Nd5 Rb1 Nf6 Qf7 Nd4 Qa6 Nc6 Qae2 Qf8+ Kb6 d6 Bd4 Nh5 Be3 Ra4 Qf5+ Kh4 Qa6 Rg5 Qg6 Qg7 Qde2 Qcb2 Rbf1 Qc1 Rf7 Qh3 Rd7 Rg1 Rf4+ Qg4 Nf6 Re8 h8B Rd1 h7 Rg1 Rf3 Qg3 Ng8 Qg5 Rf4+ Qg4 Qgd3 Kg5 Qd1 Qh4 Q3e2 Qf8 Bb2 Qg7 Re4+ Kf5 Rd4+ Ke5 Rf4+ Kd5 h8B Qh6 Bhf6 Qg7 Rd8 Rg4 Nd7 Rg1 b8Q Bb7 Qba8 Qg2 Q8a7 Qg7 Nb8 Ne7 Qad3+ Rd4 Qg6 Ra4 Na6 Rg3 Qa8 Rg1 Ka7 Kc6 Rd7 Re4 Rd8 Rb4 Nb8+ Kc7 Rd7+ Kc8 Bbd4 Rc4 Bb2 Ra4+ Kb6 Nc6 Qaa6
1nN3R1/nQ2k3/2nRr1n1/B4B2/N1q1npN1/2PRr3/1QpQ1Pb1/K2NR3 b - - 0 1 illegal: No possible last move, all moves rejected
5nB1/1r1k1r1b/2pRNQ1N/2r1pBr1/B1P1rq2/3bQR1K/4P2R/1Q1R2B1 b - - 1 2 illegal: No possible last move, all moves rejected
k1r2N1Q/Q4p2/1QBKpP1b/q2P1bB1/6bB/1N5N/Rb2nr1Q/3R1r1B b - - 0 1 illegal: No possible last move
1Nn5/BP2N2Q/k3b1r1/1nppN1n1/K2P2Bq/n2Q2R1/Q1NRB1b1/6bQ b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 b4 hxg5 b3 axb3 Na6 b4 Nb8 b5 Bg7 Rh5 Bh6 Rh1 Bf8 b4 a5 c5 a4 c6 Na6 b6 Rb8 b5 Rb7 cxb7 Nb8 f4 h5 g4 d5 g6 Kd7 g7 e5 g5 h4 f6 c6 f5 a3 f7 e4 g6 h3 f6 a2 Rh2 e3 Nf3 e2 Na3 Bd6 f8Q Qc7 f7 Bb4 Nc2 Nf6 g8Q Rh7 g7 Ne4 Ne5+ Ke6 Rb1 a1N Rb3 Nd7 b8Q Rh4 b7 Bc3 b6 Nd6 Qh7 Bd4 g8B Nb5 Rg3 Qd8 Qa7 Rh6 b8N Bg1 b7 Rg6 Qa2 Nb6 Qfh6 Kd6 f8N Kc5 Be6 Qh4 Bg4 Be6 d3 Nc8 Kd2 e1N Bfe2 Kb6 d4 Qd8 Ba3 Qh4 Kc1 Nf3 Kb2 Ng5 Qd3 Ka5 Rhg2 h2 Bc5+ Na3 Qh5 h1B Ba7 c5 Rh2 Bg2 Kc3 Rg7 Nfg6 Rg8 Ne7 Rg6 Ne1 Nc2 Kb3 Nb4 Q5h6 Na6 Nc2 Nc7 Qh5 Nb5 Q5h6 Nf7 Qc1 Ng5 Qf1 Bf2 Qh1 Bg1 Bf1 Bf3 Rd2 Be4 Bfe2 Bg2 Nbd7 Ka6 Ka4 Bf2 Ne1 Be3 Nc2 Bg1 Nb8+
3b2RN/rR6/QQB3KR/2P1BB2/2pr2N1/r1qpN3/RrnP4/1nN1n2k b - - 0 1 illegal: No possible last move
r1R1bB2/Qr3B2/4n1n1/1p1r3p/PN1n2N1/kP1K1R2/n4RqN/RQ1N2Q1 b - - 0 1 illegal: No proof kernel
1Kb2k2/1R2rQ1b/Np1P3B/NpR1Q2B/1r3bN1/1PRn2R1/3Q3q/1N1rb3 b - - 0 1 illegal: Other
Q2B1K1b/N1n3R1/1R3NQk/4p3/1Q3RnN/1nRPQb2/p1b1P1Bq/5b1r b - - 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 Kf2 e5 Kf3 f5 b4 c5 d6 h5 d7+ Ke7 b6 f4 Ke4 f3 Kd5 h4 d3 h3 b7 f2 b5 a4 b6 a3 Bg2 f1B Nf3 c4 Nh4 a2 Nc3 h2 Nb5 c3 Na7 c2 Qd2 Rh5 Qe3 Na6 b8Q Rh7 b7 Nh6 g8R Rh8 g7 Kf7 g6+ Kf6 Qa8 Ng4 b8Q Qe7 d8R Nh6 Rb1 Qc7 Qb4 Bd7 Rc8 Ng4 Rg1 Qb8 Rc3 h1B Ba3 Rh5 Rh8 c1N g8N+ Kg7 Nf6 Be7 Rf8 Ba4 Ke6 Bc2 Kd7 Qc7+ Ke8 Nb3 Bc1 Qc4 Rb2 Qf4 Rf7+ Kh6 g7 Bf8 g8Q Bg7 Rb1 Bh8 Kf8 Nc7 Rg7 Nf2 Rg4 Qg5 Rf4 Ng4 Be4 Nd5 Ba3 Nd2 Qb3 Nh2 Ng2 Rh3 Nh4 Qg3 Be7 Nc7 Bd8 Qf2 Rg5 Ng4 Qgf7 Bhg2 Rg7 Rh1 Qa3 Qg1 Rb6 Nb3 Qb4 Qh2 Bb7 Be4 Bc6 Bh7 Bg2 Be4 Qe8 Bf3 Qg6#
K3B2Q/2rN2k1/RQ2pnnR/2B1b3/1rRp4/1B1PQ1q1/1r2PB2/3NnQ1n b - - 0 2 legal: proof: g4 c5 b4 h5 bxc5 g5 a4 b5 axb5 Bb7 gxh5 g4 f3 g3 Bg2 Bd5 Bh3 Be6 Bf1 Bg4 fxg4 Qa5 Bg2 Qb6 Bf1 Qd8 c4 a5 h4 f5 g5 Kf7 c6 d5 b6 g2 Kf2 f4 Kf3 a4 b7 a3 c7 a2 c8Q Ra7 g6+ Kg7 c5 Nc6 b8Q Rh7 h6+ Kf6 d3 Qc7 g7 Rh8 h7 Kf7 h5 Nb4 c6 Rb7 h6 Qd8 c7 Ra7 Qb6 Rb7 Be3 Qd6 Qe8+ Kf6 c8R Nc6 Bc5 Na7 Nc3 Rc7 Qe1 Nc6 Nd1 Qe5 Qf2 Qg5 Qe3 Qe5 Qd7 Kg6 Qh3 Nf6 g8B Bg7 Be6 Rf8 h8B d4 h7 Rd8 Bb3 Rd5 Qf5+ Kf7 Rh6 e6 Qh3 Ne7 Qh1 Nh5 Qh3 Qg5 Ke4 Ng6 Nf3 g1R Bg2 Be5 Bf6 Qg3 Bh4 Kg7 Bh1 Rdd7 Qf1 Rb7 Rc6 Rdc7 Rc1 a1N Rc4 Nc2 Rd6 Qg2 Bf2 Qg3 Bg2 Ne1 Rc6 Bd6 Ne5 f3 Nd7 Bf4 Qa5 Rb8 Ra6 Rb4 Qb6 Bd6 Bh3 Be5 Bf5 Nh8 Bg6 Rh1 Bg1 f2 Be8 Ng6 Qg2 f1N Bf2 Nh2 Qf1 Ng4 Qg2 Nc2 Qc1 Bf4 Nc3 Re1 Qf1 Rc6 Qe3 Rc8 Bg1 Rb1 Nd1 Rc7 Qef3 Qh3 Qe3 Bg3 Bf2 Rb2 Qg2 Ne1 Qh1 Ngf4 Qf1 Ngf6+ Ke5 Qh4 Kd6 Ng6+ Qf4 Bh2 Qe5 Ng3 Qe3 Ra7 Kc6 Nh1 Ra4 Be5 Ra6 Ra8 Kb7 Rc8 Ka7 Rc7+ Ka8 Qg3 h8Q+
4n1N1/RR1b3B/1ppr4/1R3r1k/PR1b4/1Bq1N1Q1/K1P2brB/Q1NB2b1 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 f5 bxa5 d5 gxf5 Nc6 exd5 Ne5 h4 g4 Qe2 Nf7 Qd1 Ng5 hxg5 Bh6 Bc4 Bg7 Bf1 Bf8 f4 Kf7 d4 e5 Kd2 h5 Kc3 b6 Kb3 h4 a6 h3 f6 Kg6 a7 e4 f7 e3 d6 g3 f5+ Kh7 g6+ Kh6 d7 g2 f6 h2 d5 Be7 f8R Rb8 a8B Rb7 f7 Bg5 d6 e2 g7 e1B Bf4 Bd2 Na3 Bb4 Bd3 Qe8 d8Q Ba5 d7 Qe3 Ne2 g1B Nc1 Qf3 Nc4 Qc6 Ne3 Bf2 Bh7 Ne7 g8B Bb4 a4 Rb8 Ka2 Qg2 Bf3 c6 Rb1 Nd5 Qc7 Nf6 d8R Bc5 Rd5 Qh3 Rb4 Bd4 Rdb5 Bd7 Rd8 Bg1 f8N Ne8 Bb3 Rg8 Ng6 Rb7 Bg3 Bh4 Ra8 Rf8 Qf1 Rf5 Bd1 Kg5 Be5 Bhf2 Ne7 Rb8 Qd6 Rd8 Ng8 Qf3 Ra7 Kh5 Ng4 Qc3 Bf4 Bc5 Qdd3 Bfd4 Qg3 Bgf2 Rg1 h1R Bb8 Rh4 Ne3+ Rg4 Be5 Be6 Bb8 Rd6 Bc7 Bd7 Qe1 Rg5 Rf1 Bg1 Rf7 Rf5 Bb8 Bc8 Rfb7 Bd7 Nd5 Bdf2 Ne3 Bd4 Bc7 Qc4 Qc3 Qd3 Qb2 Qc3 Qa1 Qd2 Qe5 Qc3 Bf3 Rf6 Bd1 Re6 Qg7 Rg6 Bh2 Rd6 Ne2 Rg2 Qe5 Rf6 Qg3 Rd6 Nc1#
1q2Q3/B1P1R3/q1N2R1N/3r2p1/B2k2P1/Nnbp3b/B2r1bQB/2RN1b1K b - - 0 1 illegal: No possible last move
QRQ5/1qr2pRn/nQ1p1P2/4B3/KPQ1B1Nq/1R5N/3NqRr1/1b2kq2 b - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 c4 h4 cxb5 h3 a4 Be7 a5 Nc6 gxh3 Nb8 h4 Bc5 h5 Bb6 axb6 Qh4 Qd6 Qf6 Qd1 Qd8 Kd2 Ke7 Kc2 Ke6 Kb3 Kf5 h4 Ke4 f4 c5 f5 g5 h6 a5 h7 c4+ Ka4 c3 h5 g4 h6 c2 b7 d6 b6 g3 e6 g2 e7 Nf6 e8Q+ Be6 Rh2 Ng4 Bf4 c1Q Be5 Ke3 Qd3+ Kf2 e4 Qd2 Ra3 Nd7 b8Q Bc4 b7 Qf6 Nh3+ Ke1 Rb3 g1Q Qec8 Qd1 Nd2 Qh1 Bg2 Rg8 h8R Qe2 Rh7 Qh4 Rg7 Ngf6 h7 Ra7 h8Q Nh7 Qd4 Bd3 Qdc4 Bb1 Qa8 Kd1 b8R Ke1 Qac6 Rb7 Qb6 Rc7 Bf3 Qhf1 Rf2 Qh1 Bb2 Qg2 e5 Qgf1 e6 Nc5+ Kb5 a4 e7 a3 e8N a2 Be4 a1Q Be5 Qa3 Nf6 Qa8 Ng4 Na6 f6 Qb7 Ka4 Re8 Bh2 Re5 Qhe8 Rg5 Be5 Rg6 Nh2 Rg1 Ng4 Rg2 Qec6 Qa7 Qc6b7 Qa8 Q7a7 Qb7 Qa8
1q2r3/N4rQK/1n4r1/NRnR1Q2/P2p4/1p1P1QBB/Rk1bN1RN/3q1r2 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Ba6 c4 Bb5 cxb5 Rh7 Qg4 Rh6 Qd1 Rh8 Ke2 Kf7 Kf3 Kf6 Ke4 c5 f4 e5 a4 g5 h4 d6 d3 b3 h6 c4 b6 g4 b7 c3 h5 c2 h7 g3 a6 g2 a7 Na6 b8N Qe7 h6 Qc7 Ra2 Ne7 Nd2 Nb4 Ndf3 Ng8 Nh2 Qa5 Ne2 g1R Bh3 Bg7 Nc6 Rb8 a8N Rb5 Na7 Rg6 Rg1 Na6 Nb6 Qe1 Nc4 Ne7 Rg2 Nd5 Na5 Re8 h8Q Nb6 h7 Qg3 Qg8 Bh6 h8R Bg5 Rh5 Rd5 Be3 c1Q Bf2 Rc5 Qh1 Rc7 Qf8+ Rf7 Qg7+ Ke7 Be1 Qd1 Bf2 Kd7 f6+ Kc7 Kf5 e4 Be1 d5 Qf1 Kd6 Qf3 e3 Bf2 Rb7 f7 Kc5 f8R Kb4 Rf7 d4 Rd7 Nc5 Rd5 Bh6 Rg5 Qh4 Rh5 Qd8 Bh4 Qb8 Bg3 Rg4 Kf6 Bg5+ Kg6 Rf7 f5 Bh6+ Kh7 Rg6 Nf4 Kc3 f6 e2 Rhe5 e1R Ne2+ Kb4 Rg5 Rf1 Rge5 Bd2 Qf5 Rb7 f7 Rc7 f8Q Rf7 Ng1 Kc3 Qf3 Nb7 Rb5 Nc5 Rd5 Rd7 Q8f5 Rf7 Ra3 Kc2 Ne2 Kb2 Ra2+
6R1/3nPk1N/p3R1b1/P2Rrp2/qrqBr1BB/1Qb1N3/2K2BN1/1N4Qr b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Be7 gxh5 Bf8 e4 Qe7 f4 Kd8 f5 Kc7 f6 Nc6 e6 Qd8 e5 Nce7 fxe7 Kc6 Kd2 Kd5 e8R b5 h4 g5 a4 f5 c4+ Kc6 h6 d5 h7 a6 h5 b4 h6 g4 e7 Kd7 a5 Ke6 c6 d4 c5 g3 c7 g2 c6 d3 Ne2 g1R Bh3 b3 Nf4+ Kf7 e6+ Kf6 Ng2 b2 Bg4 Re1 Qb3 Re5 Re1 Bd7 c8N Rd5 c7 Ra7 Nb6 Rb5 c8Q Rb7 Nc4 Rb4 Nce3 R7b5 Qc5 Qc7 Kc3 d2 Kc2 d1R Rc8 Rd5 e8N+ Kg6 e7 Rdd4 Nf6 Re4 Rd1 Be8 Rd5 Qf4 Bd2 Bg7 Be1 Qf1 Bh4 Kf7 Rc6 Qf4 Re6 Qf1 Nd7 Be5 Nf8 Nf6 Qa7 Bc3 Bf2 Rg8 h8B Qc4 h7 Nd7 Bf6 Rh8 B6h4 Rc5 Rd4 Rce5 Rd5 Kg7 Qd4 Bg6 Qd1 Kf7 Qg1 Rg8 h8B Rg7 Bf3 Rh7 Bg4 Rh5 Nh7 Rh6 B4f6 Rh1 B6h4 Be1+ Nc3 Qc7 Rc1 b1Q+ Kd1 Qa2 Nb1 Qa4 Rcc5 Bc3 Kc2 Qcc6 Rc4 Qcb5 Rc8 Qc4 Rb5 Rc5 Bd4 Rd5 Rg8 Rde5 Rd5
Q2BQ1rQ/1BQ2q2/2np1q2/1nrPN2r/R3Kpr1/2b3Nk/5P2/R2NB2B b - - 0 2 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 d6 gxh5 Kd7 a4 Rh6 axb5 Ke6 e5 Kf5 e6 Bd7 exd7 Rh8 Be2 Kf6 Bf1 Ke6 Ke2 Kf5 Ke3 e5 c4 g5 h4 a5 d4 e4 b6 g4 h6 f6 h7 g3 c6 g2 c5 a4 h5 a3 c7 a2 c8Q Be7 c6 Kg5 b7 f5 d5 Ra5 c7 Ra6 h6 Qe8 d8B Ra5 Qa4 Kg4 Nc3 Qf7 Bd2 Nf6 Nge2 g1R Bg2 Nc6 b8Q Rg8 h8Q Rc5 h7 Ne8 Qba8 Bf6 Nd1 Bc3 Rh2 Rh1 Ng3 Rg1 Qc2 Rh1 Rh6 Rh5 Bh1 Kh3 Be1 Rg4 Qcb8 Rg8 c8B Nc7 Qc1 Nb5 Bb7 Rg4 Re6 Rg8 Kf4 e3 Re4 e2 Ra4 Rg4+ Kf3 f4 Ke4 Rg8 Qe3 Rg4 Qc7 Rg8 Bd2 e1R Qe2 Rg1 Be1 Rh4 Qh5 Rg4 Q5e5 Rh5 Qhe8 Rg2 h8N Rg1 Ng6 Rg2 Rc1 a1Q Q5h8 Qb2 Ne5 Rg8 Nf1 R2g4 Rca1 Bb4 Ng6 Qbf6 Ne5 Bc3 Ng3
2B1R2N/q7/r1pnpr1r/1N2P2k/2PNn1RR/4BNQ1/1rQ1B2K/R3q2b b - - 1 2 illegal: No possible last move, all moves rejected
1QBK3Q/5PN1/1Nr1bNb1/Q3n2p/1q1n2B1/1NQ2R2/1pkbqB1P/3R1b2 b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 f5 b4 e5 bxa5 b5 fxe5 f4 g4 Ra6 Qd5 Rf6 Qd1 Rf5 gxf5 Qf6 Kf2 Qb6 Ke1 Qd8 Kd2 Ke7 Kc3 g5 Kd4 h5 Kd5 f3 a4 d6 e4 b4 c4 f2 f6+ Kf7 a6 Kg6 a7 g4 a8N g3 e6 b3 e7 g2 e8N b2 c6 Rh6 f7 Be7 c5 Qc7 a5 Bd7 e5 Kf5 a6 Qc8 e6 Rg6 c7 Nc6 a7 Nh6 Qa4 Rg5 Qa5 Rg7 Nf6 Rg5 Ra3 Rg7 Nh3 g1Q Rf3+ Kg6 Nd2 Nf5 Be2 f1B Nb3 Qg4 Be3 Qe8 c8B Nfd4 Ng5 Ne5 c6 Rh7 c7 Rh6 Bf2 Qh4 Rg3 Kf5 Nb6 Bf8 a8Q Rg6 e7 Bh6 Nf3 Bd2 Ng5 Qg4 Bd1 Qe2 Ne6 Qf8 Ng7+ Kf4 Rh3 Bg4 Bg3+ Ke3 e8Q Kd3 Qb7 Bf5 Qb8 Rh6 Rg1 Bg6 Bh4+ Ndf3 Ke6 d5 Rh1 d4 Bf2 Qb4 Rg1 Kc3 Rhg3 d3 Rh1 Ng4+ Kd7 Nd4 Kd8 Ne5 Rf3 Bf4 Be3 d2 Bf2+ Be3 Bc2 d1B B2f5 Bc2 Bg4 Bcf5 Rg1 Kc2 Qe7 Bh3 Rd1 Bd2 Qe8 Nd7 Qe3 Ne5 Bb7 Be6 c8Q+ Nc4 Qd7 Bg2 Bc8 Ne5 Qe8 Bf1 Qh8 Bd5 Ra1 Bh7 Ng8 Rc6 Rd1 Bg6 Nf6 Be6 Qc3+
1KB2qR1/B1pkPQQ1/r2N1qbr/1R2n1NB/r1PRrN2/2p5/8/N3b1B1 b - - 0 1 illegal: Other
1N1bnrr1/pBN3QR/3B1Rn1/2B2nQ1/Ppq3Pq/4B2N/3K4/kN1n2Q1 b - - 0 1 legal: proof: g4 c5 d4 g5 b4 f5 bxc5 e5 dxe5 b6 h3 Bb7 gxf5 g4 Bf4 g3 Bd2 Bf3 Bc1 Bg4 hxg4 Qf6 Qd2 Qe7 Qd1 Qd8 a4 Ke7 f4 d5 c4 h5 e4 h4 c6 b5 e6 Kf6 e5+ Ke7 c7 g2 c8Q b4 c5 d4 c6 h3 f6+ Ke8 e7 Kf7 e8N h2 f5 d3 c7 Bd6 e6+ Kf8 f7 Ke7 Nh3 g1Q Qb7 Qg2 c8Q+ Nd7 Nf6 Bc7 Be3 Kd6 f8B+ Ke5 e7 Qa2 e8N Qc4 Bfc5 Ne7 Kd2 Rf8 Bg2 Ng6 Qg1 Qe7 Bf3 Bd8 Nc7 Qh7 Qb5 Qh4 Qcb7 Rb8 Nfe8 Ra8 Na6 Nf6 Nec7 Ne8 f6 Rb8 f7 Rc8 Kd1 d2 Nb8 Rg8 Ra3 Rf8 Rd3 Rg8 Ke2 d1N Kd2 Rf8 Rd6 Rg8 Qf2 Rf8 Rf6 Rg8 Rg1 h1N f8B Ng3 Rh1 Nf5 Bc6 Nfe7 Qg1 Nf5 Nd5 Ke4 Qg7 Ke5 Bfd6+ Ke4 Qg3 Rf8 Bb7 Rg8 Ke1 Kd3 Nc7 Kc2 Rh2+ Kb3 Kd2 Kb2 Qg1 Ka2 Qc6 Ka1 Qd5 Nh6 Qg5 Nf5 Nb5 Rc7 Rh1 Rf7 Nc7 Rff8 Nf4 Qg3 Rh7 Qh4 Nh3
1q1R1B2/1qp3N1/1b2nKB1/4r2R/1QBQ1BR1/1p1b2R1/rQPNP1b1/1b1k4 b - - 0 1 illegal: No proof kernel
2nb2r1/2p1p1R1/br1BBk1B/1RP1RnRn/P1B5/N1Q3Q1/3Q2nN/2K2n2 b - - 0 1 illegal: Other
7B/rpp5/1P1n2rQ/3R1RP1/1nNbN2b/1Q1bNkBB/5N2/2BRKn1n b - - 0 1 illegal: No proof kernel
1R2Q1B1/8/1p1qn3/qQqpbn1K/1R1P1k2/qR1R1BQ1/1P2n2B/N1r2QN1 b - - 0 1 illegal: No possible last move, all moves rejected
1N1B4/3Qb1B1/3bn1QN/RR3B1P/2KpR1pk/q1Q3bn/2r3Pp/3r2QB b - - 0 1 illegal: Other
3r4/1b1N3N/B2B2qk/R2p2nQ/4QbB1/p3RPn1/1RRp1PQK/1rn1Q3 b - - 0 1 illegal: Other
2nQR1bq/5R2/3b1R1N/1p3r2/6K1/1P1Q1NBQ/1RpPp2B/BnnrkB2 b - - 0 1 illegal: No possible last move
nN2k1K1/1N2Qrbn/5Pp1/q3Qpp1/2B4N/2P2bR1/1nB4R/RNB1r1R1 b - - 0 1 illegal: Other
1rB1b1q1/2RB4/N2QP1N1/bpKQr2P/1n6/Rp3Q1k/2p1R2B/QR2n2r b - - 0 1 illegal: Other
QNQ1B3/2b1Rn1r/1B1QPp2/2p3Q1/1Nb1q1RB/7p/Pn3bRk/K2B3r b - - 0 1 illegal: No proof kernel
Q1r3Q1/R3R3/N1BPb1rP/1RKpb1p1/2R1N1nk/2n2b2/Q1Qp1BqN/8 b - - 0 1 illegal: Other
6b1/3r1RKp/4Q1br/p3R3/Qq3R2/1NNP1n2/RBpQP2N/1n2NBbk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 c5 Kg4 f5+ Kh5 a5 b4 c4 g4 c3 g6 f4 g5 f3 e6+ Kd6 g7 Ke5 g6 Kf4 b6 Kg3 b7 f2 e7 Be6 e8R Nh6 g8N Ng4 g7 Bc8 b5 Ra7 d6 Be6 b6 Bb3 d7 Nh6 Ra2 Bc4 Bb2 Bd6 Rh4 Qe7 d8Q Bc5 Nf6 Nd7 b8R Ng8 b7 Ne5 Qa4 c2 Nf3 Ra6 Ne1 Nf3 Ng4 Nf6+ Kh6 Bg8 Nc3 Rd6 Qdd7 Ne4+ Qe6 Bd4 d3 Ned2 Nh2 Nb1 Rf4 Ra6 Rbd8 Qb4 b8N Rd6 Nd7 Ba7 Bh3 f1B Nc5 Bg2 Nb3 Bg1 Rd7 Bh1 Bf1 Bg2 Re4 Bh3 Rf7 Bf5 Rf4 Bg6 Qe3 Rb6 Qd2 Ra6 Ng4 Rb6 Re5 Rf6 Nf2 Kh2 Ng4+ Kh1 Nh2 Rc6 Rb7 Bd5 Rbf7 Rd8 g8Q Rd7 Kg7 Bc4 Qe8 Be6 Re7 Bg8 Qc8 Be4 Ref7 Rh6 Qc4 Bg6 Qe6
1n1rRbk1/6np/R1bp2n1/3NB1P1/2p1N2q/1NBBQ2Q/7P/KBrN3Q b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 f4 Bd6 fxg5 Bf8 b4 Bh6 c4 Kf8 b6 Na6 b7 Ke8 b5 Qf6 c5 Qb6 cxb6 Nb8 Qd2 Bg7 Qd1 Bf8 Kd2 a5 Kc3 f5 Kb2 Kf7 g4 c5 e4 c4 g6+ Kg7 g5 a4 e6 f4 e7 f3 e8B f2 e5 Nc6 b8Q Nb4 b7 Na6 e6 Ne7 b6 Ra7 Qg3 Nc7 b8B Ba6 b7 Ned5 e7 Nb4 Qh3 Na8 Be5+ Kg8 b8N d6 g7 Rb7 Nc3 Rb6 Bd3 f1Q Nc6 Bb5 Nge2 Na6 Bd2 Nb8 Nc1 Qf2 Re1 Nc7 Nb3 Qh4 Beg6 Nd5 e8Q Ne7 Nb4 Bc6 Nbd5 a3+ Kb1 Ra6 Re3 Ra4 Qh1 a2+ Kb2 Ra6 Nd1 Rb6 Bge4 Ng6 Bdc3 Rb7 Re2 Rf7 Qe7 Rf1 Qa7 Rg1 Qae3 Re1 Rc1 Rf1 Ka1 Re1 Bb1 Rg1 Bed3 Re1 Kb2 a1N Ka2 Nc2 Kb2 Na3 Ka1 Nb5 Rcc2 Rf1 Ra2 Nd4 Ra6 Nf5 Re1 Kf7 g8N Ng7 Ngf6 Rg1 Ne4 Kg8 Ndf2 Rf1 Re2 Rc1 Nd1 Ne7 Qd4 Ng6 Nef2 Be7 Bg3 Kf8 Re6 Kf7 Qe3 Rd8 Bge5 Bf8 Re8 Kg8 Ne4
1RQ1QNb1/2Rr3p/1nP4N/1qk3p1/1Nr1pQP1/1B2BB1K/6nb/3b1BQ1 b - - 0 1 illegal: No possible last move, all moves rejected
2b3N1/RQn3PQ/2rR4/Nbb2pK1/1Pr1B2p/2k3Nq/pB2BQ2/NBn5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 e4 d5 g4 h5 c4 h4 b4 f6 b6 a4 c6 d4 c7 d3 b7 a3 c5 d2 g6 Nh6 g7 Qe8 g8N Bd6 g5 Qf8 c6 Nf5 g6 Qe7 g7 Ra5 Qc2 d1B Ne2 Qe8 Nd2 Qh5 Ng3 Be2 Nb3 Na6 b8N Bd3 Be2 Qh7 Rd1 Bd7 c8Q Bf8 c7 Ne3 Qb7 Ba4 c8B+ Bd7 Nc6 Bb5 Rd6+ Kf7 e6+ Kg6 e7 Nd1 Bb2 Nc7 e5+ Bf5 e6 Ra6 Nca5 Nc3 Bd7 Na2 Bc6 Nc1 Be4 Rc6 Ra2 Qh5 Na1 Rc4 Qd3 Rh7 Qd4 Rh6 Qf2 Qg5+ Kf3 Qd2 e8B+ Kg5 e7 Bc8 B8c6 f5 e8Q Qc3+ B4d3 Qb3 Be4 Rf6 Qe6 Kg6 Kf4 Qc3 Rd4 Bc5 Bb1 Qd3 Qeb6 Rc6 Rd6+ Kf7 Kg5 Qf3 Rd1 Ke6 Rd4 Ke5 Q6a6 Rh6 Qg6 Qg2 Qh7 Qh3 Bc3 Rc6 Rd6+ Bd4 Rc2 a2 Bb2 Nd5 Rd2 Nc7 Ba3 Ba7 Rd7 Bc5 R2d6 Nd5 Qe1 Kd4 Qf2+ Kc3 Rd8 Bd7 Ra8 Nc7 Ra7 Bc8 Bb2+
2NQ2RR/2n1r1pN/2pNq2B/Q2bB1r1/2R2r1R/1bPBP1p1/n2k4/K4B2 b - - 0 1 illegal: Other
4Q2b/5pn1/1PQN1R2/2n1R3/PQBkr1qR/1rN1N1Q1/np1BbpK1/3R4 b - - 0 1 illegal: Other
3K4/3Qp3/pB3QQr/1Nq5/bR2rNNp/1P1nRb2/2N2P1Q/1kbn2RB b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 d5 Kf4 h5 Ke5 h4 c4 a6 g4 d4 f6 Kg6 b3 d3 f7 d2 c6 Ra7 c7 Rb7 b6 Qd3 c5 Qc2 c6 Qc4 Na3 Be6 c8N Qd3 c7 Qd8 Bg2 Bd5 Na7 Be6 c8R Qd3 Nh3 Qd7 Nf4+ Kg7 g6 Qe8 g5 Bh3 Rg1 Qd7 Rc3 Qc6 Re3 Rh7 N7b5 Bd7 Bh1 Nf6 Nc2 Ne4 Ra4 Rh6 Rb4 Nc3 Qg4 Be8 Qd7 Qc5+ Ke6 d1B Ba3 Rc7 b7 Nc6 b8Q Ne5 Bc1 Bf3 Bb2 Nd1 Bd4 Qc3 Bb6 Rc4 Qbd6 Re4 Q6c7 Qc5 Qcd6 Rh5 Q6c7 Kh8 g7+ Kh7 g8N Bh6 g6+ Kg7 Nf6 Nd3+ Qe5 Bg5 Qb7 Kh6 g7 Bc6 g8Q Be8 Nd6 Ba4 Qe8 Kg7 Ng4+ Kh7 Nb5 Rh6+ Ng6 Bf4 Kd7 Bg5 Kd8 Bf4 Ree1 Bc1 Qh2 Kg7 Nf4 Kh7 Ne6 Kg6 Nf4+ Kf5 f8Q+ Rf6 Qc8+ Re6 Rg3 N3b2 Qh8 Rh6 Qc7 Re2 Rgg1 Re3 Ncd4+ Ke4 Qf6 Re2 Nh3 Kd3 Qcd7 Re4 Re3+ Kd2 Qeg6 Nd3 Na7 Kc3 Nab5+ Kb2 Nc2+ Kb1 Nf4
Q1R1bkr1/RPBq1r2/1pp2pN1/2R1N3/2R1QNP1/K3n3/1NrQ4/2n1b2B b - - 0 1 illegal: No proof kernel
rR1r1R2/p1kNQ2Q/1nnb2QR/7r/2pBPpBq/N6Q/b2N3P/2K3N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 d4 f5 Kd2 c5 e4 g5 b6 c4 h6 g4 b5 g3 e6+ Kd6 b7 g2 e7 Kc7 e8N+ Kb6 d6 Be6 h7 Bc8 d5 Nf6 d7 Nc6 b8R+ Bb7 d6 Ne5 Ra6+ Kc5 b6 Kc6 Qb3 Nh5 Bb2 Qc8 d8Q Bh6+ Qg5 Nf7 d7 Qd8 Kc1 Qe7 d8Q Bf8 Qg6+ Nf6 Nc7 Ne5 Nd2 f4 Nb5 Bc8 Qh3 Bg4 Bd4 Bd1 Be2 Bb3 Na3 Ba2 Bg4 Rg8 h8Q Qh7 Rb7 Bd6 Rf7 Qh4 Rf8 Nfd7 b7+ Nb6 b8N+ Kb7 Qhh5 Nc6 Nd7 Rh8 Qe7 Kc7 Qhh7 Rg8 Ngf3 Rh8 Rd1 g1R Rb8 Rg3 Ng1 Rb3 Rf8 Rb5 Re1 Rh5 Re3 Rg8 Rb3 Na4 Rbb8 Nb6 Ra5 Rh8 Re5 Rg8 Re6 Rh8 Qgg7 Rg8 Rh6 Rh8 Qgg6 Rg8 Rf7 Rd8 Rf8
1K2n1n1/QB1B2BN/6RR/kqqNPpp1/rb4r1/1B3PpQ/3b4/N3N1R1 b - - 0 1 illegal: Other
1K1B1N2/2B3Q1/Q2N3R/qNpR1p2/4b1P1/nn1Np1r1/1kBP1Q2/b1rQ3q b - - 0 1 illegal: No proof kernel
1Q1R2n1/1RnQ2q1/2NRQ2b/pN1qNK2/1pB2B2/Pp4P1/3N3R/1rbk2r1 b - - 0 1 illegal: Other
k1nrNQ2/3N1b2/1B3N1p/1r1N2P1/3p1R2/1qqRP1p1/1R1nBBK1/5QbR b - - 0 1 illegal: No proof kernel
4b3/1rR3b1/KpNRR2B/1Pq1R3/BNQpQn2/5NPk/npQ1r2q/2N5 b - - 0 1 illegal: Other
1K3b1Q/8/p4kpN/1pq2b1N/QnRq1BPR/4nr1B/2P1N1rB/2N2QQ1 b - - 0 1 illegal: No proof kernel
Nq4QN/Qn1Qr1p1/1NQ2p2/n3P2q/R2B1pb1/4brP1/3R2R1/NK2k2B b - - 0 1 illegal: Other
1R1n1Q1N/2RB2p1/1q2PR1b/1NnRp1k1/1pN2b2/2q1P1r1/5B1Q/r1QQ1K2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 d5 c4 e5 cxd5 a4 f5 Be6 fxe6 a3 bxa3 Rh6 a4 Rh7 a5 Rh8 h4 Ke7 d4 Kf6 a4 c5 a6 b5 h6 c4 h5 b4 a7 c3 d6 c2 a5 Qe8 d5 Qe7 a6 Qe8 d7 Bd6 d8R Nc6 h7 Qf8 h6 Qe8 Be3 c1B Nc3 Nb8 Nf3 Nc6 Rb8 Kf5 Nd2 f6 Bf2 Kg5 e3 f5 Bb5 f4 Kf1 f3 Nc4 Nd8 Bd7 Bd2 Rc1 Nf6 Nb5 Be7 d6 Be1 Rc3 Rf8 h8Q Ne4 h7 Nc5 Rh6 Rf4 Rc1 Rg4 Rf6 Rg3 Qf8 Qg6 h8N Qb1 Rc3 Qb2 Qc1 Qa1 Rd3 Qa5 Rd5 Qb6 Rb7 Rc8 a8Q Rb8 Bg1 f2 a7 Rc8 Rc7 Rb8 Qc6 Rb7 a8R Ra7 Rb8 Ra1 Rf4 Bf6 Qa8 Be7 Qa2 Bf6 Ke2 Be7 Rf6 f1Q+ Kd1 Qf4 Ke2 Qd4 Kf1 Qc3 Qe2 Rg4 Qa2 Bg3 Qh2 Bf4 Bf2 Rg3 Bc8 Kg4 d7 Bh6 Rg6+ Beg5 Rf6 Nf7 d8Q Bf4 Bd7 Kg5 Qc8 Nd8 Qa6 Qb3 Qa4 Qc3 Qad1
3NQ3/KN1RPp1Q/4QrR1/2Bp1q1N/1nB2bp1/RR1bn3/q1P1r3/3Q3k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 h4 Kg4 e4+ Kg3 b4 d5 b6 a5 h6 g5 b7 a4 b5 a3 h5 a2 h7 g4 c6 Bf5 b6 Qe8 h6 Qc8 e6 Bg7+ Kc5 Ra3 e7 Qd7 e8Q Qc7 e5 Ra7 e6 Kf2 e7 Qd8 c7 Be6 c8Q Ra8 Qd2+ Kg3 Bc4 Bf6 Ne2+ Kg2 Ng3+ Kf3 Nc3 Bh4 Na4 Nf6 Nh5 Ra6 Ba3 Rg8 h8R Bg5 h7 Nc6 b8N Nb4 b7 Bf5 Nc6 Qd7 b8R Bh6 Nd8 Rg6 Rb6 Bf4 Rhb1 Bd3 Rb3 Qf5 Qe6 Ng8 Rd6 Rg5 Rd7 Nh6 Rg8 Rg6 h8Q Rf6 Rg6 Rd6 Qh7 Ra6 Qc3 Kg2 Kb5 Kh2 Nc5 Ra4 Kb6 Kg2 Bc1 Kh1 Qd2 Ra3 Ncb7 Ra4 Rab1 a1Q Ra3 Qa2 Rbb3 Ra6+ Kb5 Ra4 Bb2 Ra6 Bd4 Rd6 Bc5 Rc6 Qe5 Rce6 Qd6 Re2 Kb6 Qg5 Qc6 Nf5 Ka7 Ne3 Qe6 Qf5 Qd1+
2bN1K2/nr1PBQ1q/1RNpbB2/5rp1/pn4NR/qk3QP1/5Q2/Q1N4B b - - 0 1 illegal: No proof kernel
1N2B3/q1P2kBQ/1rq4n/BQr1Q1b1/1p1N2BN/1Rn2pPK/bRNp4/8 b - - 0 1 illegal: No proof kernel
5KBR/QP1rN3/N1P5/pB3pr1/b4Q1b/qB1QNkn1/Q1Rp2nq/4B3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kd5 Kg4 e4+ Kh4 c4 a5 b4 g5 c6 f5 e6 g4 e7 d6 e8Q g3 c5 g2 e5 Qg5 b6 Nd7 Ke6 d5 Kf7 d4 e6 d3 h6 Qg3 e7 Qe1 h7 Bb7 b5 Qd2 c7 Qg5 c8B Ba6 c6 Qh6 b7 Ra7 b8N Ndf6 b6 Qf4 b7 Qg5 Nh3 g1Q Nf4 Qd4 Bd2 Qc3 Ra2 Nd7 Nd5 Bc4 Na6 Bb5 Na3 Qb4 Be1+ Qg3 Rc2 Ngf6 Nc4 Ng4 Nce3 Bh6 Qg8 Qd6 e8B Qa3 Ne7 Nb8 Be6 Nd7 Bb3 Ba4 h3 Kh5 h4 Ra8 Qb1 d2 Bb5 Nc5 Bd7 Bg7 Bde6 Bh6 Qa2 Qh2 Qb8 Bf4 Qa7 Rhd8 h8Q+ Bh6 Qf8 Rd7 Qd8 Bg5 Kf8 Ne4 Bg8 Ng3 Qdb8 Nf2 Qd8 Nh3 Qdb8 Nf4 Qd8 Kh6 h5 Bh4 Qdb8 Kg5 h6 Kh5 h7 Ng2 h8Q+ Kg5 Qd8 Kf4 Qhd4+ Kf3 Qd3 Qg1 Rh3 Qh2 Qc8 Bf6 Rh8 Bh4 Kg7 Rb8 Qc7 Rf8 Qcd6 Rf6 Qb4 Rg6+ Kf8 Rg5 Qf4+
4Rq1q/P1B1B3/1bRN1Qp1/2p2RR1/4Kpn1/P5rQ/1nBQ1rQ1/1N1bk3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kf3 b5 d4 f5 e4 c5 h4 b4 a6 b3 d6 Kc6 h6 g6 d7 b2 h7 Qc7 d8Q Qe7 e6 Qe8 e7 Bd7 h5 Bg7 a7 Nh6 d5+ Kd6 a3 Ke5 d6 Bf8 Ne2 Ng8 h6 Bg7 Qc2 Bf6 Rg1 Be6 d7 Bg7 Rg5 Nf6 Nd4 Bc4 Nb5 Qg8 Qg2 Na6 Bd3 Nb4 Bc2 Qf8 Nd6 Kd4 e8R Ng4 e5 Bf6 e6 Bb3 e7 Nd3 Bf4 Rb8 Bg3 Ba4 Qa5 Rb3 Rc8 Rg8 e8R Bd8 Bh4 Bb6 d8B f4 Qad2 Rh8 Rf5 Rc3 Bc7 Rb3 Nc3 b1Q Be7 Qh1 Rg1 Qh4 Nb1 Qhf6 Nf7 Kc4 Ke4 Nb2 Qgf2 Rg3 Qg2 Rg8 h8Q Qc3 Qh7 Qh8 Qg7 Bb3 Qf6 Rg7 Nd8 Rh7 Nb7 Ba4 Bed6 Rd7 Be7 Rdd3 h7 Rdf3 Bb8 Rf2 Rc6 Qhg7 h8Q Qgg8 Qhh3 Qh8 Bd1 Bb3 Bc7 Ba4 Bf3 Bd1 Nd6+ Kb3 Qe1 Kc2 Be2 Kc1 Bd3 Qfg8 Qb4 Qf7 Bc2 Qff8 Nc3 Kd2 Nb1+ Ke2 Nf7 Rf3 Nd6 Nh6 Qgh1 Rc3 Rgg5 Rg3 Q1g2 Ng4 Qbd4 Ke1 Qd2+
K1Q5/pN1n3k/3bQ1p1/PRq2q2/3Nn3/BB2BrR1/b1PBr1Rp/6NR b - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 e5 d4 g6 dxe5 c4 h5 c3 h6 Qb6 bxc3 Qc5 c4 Qe7 c5 Qg7 hxg7 Be7 Bh6 Bd6 Bc1 Bf8 Kd2 Kf7 Kc3 d5 Kd4 h5 a4 b5 e4 h4 f4 h3 e6+ Kf6 e7 h2 e8R b4 a5 b3 e5+ Kf7 e6+ Kf6 c6 b2 e7 Bb7 Kc5 d4 c7 d3 c8Q d2 Ra3 Bg2 Rg3 Rh4 Na3 b1Q Qe2 d1Q Be3 Qbc1 Nb5 Qa1 Nd4 Kf7 f6 Qa2 f5 Nh6 g8R Bc6 Rd8 Bg7 e8N Bb5 Kd6 Qaa1 Kc7 Qdb1 Kb7 Qb4 Rh8 Ng4 Rh5 Kg8 Nd6+ Bf8 f7+ Kg7 Qec4 Nd7 Qe6 Qab2 Bc4 Ngf6 Bb3 Ne4 Rhg5 Be7 f8B+ Kh7 f6 Qc5 f7 Rf4 Bh6 Bc4 f8B Rf3 Rg2 Qf5 R5g3 Qa3 Bd2 Qac5 Bhe3 Bf6 Be7 Be5 Rf8 Qg4 Rf4 Qf5 Rfg4 Bf4 Rg5 Be5 Qc7 Rf8 Qc8 Re8 Ka8 Bf4 Nb7 Bd6 Ba4 Ba2 Bf8 Re7 Bb3 Rf7 Be7 Rf2 Bf8 Re2 Be7 Qh3 Bf8 Rf3 Re5 Qf5 Rd5 Qa3 Rb5 Qac5 Qf6 Be5 Qd6 Qc7 Qd5 Qb6 Ba3 Qc5 Qc4 Bd6 Qe6
QNB3r1/pr3p1P/Q1p2q1N/1RQ1nb1B/1q1N1B1n/P7/1B2Q2k/2RK1b2 b - - 0 1 illegal: No possible last move
K1Qr4/p7/R1N1NP2/p1B3n1/B2n1B1r/pR1Q1krq/P2n4/QQ2bNB1 b - - 0 1 illegal: Other
1q1r2RB/rn3p1p/2n5/2kQR2b/1N2PK2/pR1Q1nrP/1N4Q1/Q1NB2R1 b - - 0 1 illegal: No possible last move, all moves rejected
1Kb1QR2/B1PB1nQ1/1Rp1qq2/3r2b1/R2N1R1Q/1Q1n1bp1/1p1N2Pk/5B2 b - - 0 1 illegal: No proof kernel
3b1NQ1/1Qqr1b1K/3rRpQ1/2N2P1P/BRNQp2n/2r4p/4kNq1/4BB2 b - - 0 1 illegal: No possible last move
1Q2r2R/1nB1kRqp/1q2p2n/Bnp1Q3/3Rb1BP/N1r5/2PQ3B/N1K4R b - - 0 2 legal: proof: e4 a5 a4 d5 exd5 b5 axb5 g5 b4 a4 f4 Bg7 fxg5 Bd4 Bb2 Bb6 Bc1 Ba5 bxa5 Qd6 Qh5 Qd7 Qd1 Qd8 h4 f5 g4 c5 d4 a3 Kd2 f4 a6 e6 a7 a2 b6 f3 d6 f2 d7+ Kf8 b7 Na6 b8B Qe8 d8R Ne7 g6 Ng8 g5 Nh6 d5 Ng4 g7+ Kf7 g8R Nb4 g6+ Kf6 g7 Qa4 d6 Qe8 d7 Bb7 Nf3 Qf7 Na3 Nh6 Nd4 Nd3 Bh3 f1Q Bh2 Rc8 a8Q Ne1 Bg4 Be4 Nb3 Qb5 Qb8 Qb6 Qe5+ Ke7 Rdf8 Rb8 d8B+ Kd7 Bb2 Nf3+ Kc1+ Nd4 Bc7 Ke7 Bc3 Nb5 Ba5 Qg6 Rb1 a1N Qd2 Rd8 Rf6 Rd3 Rc8 Qf7 g8Q Rc3 Ra8 Qg6 Qb8 Re8 Rf4 Qg7 Rhf1 Bg6 Rd4 Be4 Rf8 Bh1 Ra7 Be4 Rh8 Re3 Bc3 Qc6 Kb2 Kf7 Rh1 Qb6 Bb4 Rc3 Kb1 Rg8 Bd8+ Ke8 Rf7 Rf8 Nc1 Nb3 Kb2 Na5 Nb3 Rg8 Na1 Nb7 Kc1 Rf8 Ba5 Rg8 Rf6 Rf8 Bc7+ Ke7 Rff1 Re8 Rf7+
1N4bK/RRRPqQn1/1bbRB1p1/2B2pQ1/1p5B/1n4P1/3qk2Q/N2rB3 b - - 0 1 illegal: No proof kernel
8/q1N4Q/p4B2/ppB2P1r/nQN2qk1/8/1PnNKQ1N/BbRr1nRB b - - 0 1 illegal: Other
1B2K3/BN6/1nNp1rBp/1rkNN1PP/Q7/r3n3/3R1R1p/nB1bbQ1Q b - - 0 1 illegal: Other
Knr1b3/2N3nk/1rQR3p/2R1p3/2Q1NRbP/BR1P3B/N2Qrp2/2b2N2 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 d5 d4 Qd6 dxc5 d4 Kd2 d3 Ke3 d2 Kf3 Qd3+ exd3 Nc6 Ke2 Nb8 Ke3 a5 Kd4 f5 Kd5 Kf7 b4 Kg7 g4 e5 h4 a4 c4 a3 b6 h6 b5 f4 g6 f3 g5 a2 b7 Ra6 b6 Bd6 c6 Ra4 c7 Ra3 c5 Rb3 c6 Rh7 Ne2 Bg4 c8R Bf5 c7 Be7 Ng3 Ba3 Nc3 Kh8 Bh3 Rb1 Rf1 Nc6 b8N Nd8 b7 Rb4 Na6 Ra4 b8R Rc4 Rb3 Re7 g7+ Kh7 Rab1 a1R Na2 Bb4 Ba3 Re8 Qe1 d1B Qd2 Re7 Rc1 Rc6 Rc5 Ne6 Rd8 Rf7 c8Q Rf8 Rd6 Bg6 Nc7 Be8 Qd7 Rb6 Qc6 Rc1 Rf2 Rc4 Nf1 Rcf4 Re2 f2 Re4 Rf3 Rf4 Re3 Qd7 Rb7 Kc6 Nf6 g8N+ Ng7 g6+ Kh8 Ne7 Bg4 Ned5 Re2 Ndc3 Ba5 Ne4 Bc3 Qd1 Bd2 Qc2 Bc1 Qd2 Bf7 Qe6 Rc8 Qc4 Nd7 Qcc2 Ne6 g7+ Kh7 Qc4 Rb4 Qb5 Bfh5 Kb7 Nb8 Ka8 Be8 Qc6 Rb6 Nf6+ Kg6 g8Q+ Ng7 Qe6 Bf5 Qed5 Bg4 Ne4+ Kh7 Qc4
1Q1Q1Kbb/2R1n1Q1/2P2p1B/k2prrp1/Bq1PR3/6rQ/N3rB2/NBR5 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 Na6 b4 Nc7 bxc5 b4 Bb2 Rb8 Bc1 Nb5 axb5 Ra8 Kf2 a5 Kf3 b3 Ke4 g6 Kd5 b2 h4 a4 e4 a3 c4 a2 c6 d6 c5 Ba6 b6 Rb8 e6 Qe7 c7 Rd8 c8Q Bd3 e5 Qc7 h6 Bb5 h5 Bd7 e7 Bg4 h7 Nh6 b7 Qb8 Na3 b1R Bd3 Bg7 Nc2 Bh3 Ne2 Nf5 h6 Bf8 Nc3 Rg8 h8B Rb4 h7 Qc7 b8Q Qa5 Re1 Nd4 Re4 Bg2 Qh3 Nf5 Rb1 Kd7 e8R a1R Na2 Rc8 Re7+ Kd8 e6 f6 Bg7 Rb5 h8Q Qb4 Bh6 Bg7 Rc7 g5 Bb2 Re8 Bd4 Bf3 Qg8 Bh8 Bf2 Bh5 Kc6 Bf7 Qg7 Bg8 Rc1 Rb1 Na1 Rb3 Bb1 Rg3 d4 Re7 Qa4 Re8 Qaa8 Ra5 Nc3 Ra2 Qa5 Re2 Na2 d5 Qaa8 Ne7+ Kd6 Rf3 Qa5 Rf5 Qaa8 Nc6 Re7 Qc3 Qb5 Qe1 Rb7 Rb8 e7+ Kc8 Qaa5 Ra8 Qab6 Ra3 Qb2 Rg3 Q2b3 Rf8 e8B Rf7 Ra7 Re7 Rd7 Ree5 Re7 Nb8 Ba4 Nc6 Q3b5 Qc3 Qb2 Qb3 Qa5 Kb8 Qb6+ Ka8 Qd8+ Qb8+ Kd7 Ka7 Ke8+ Ka6 Kf8 Qb5 Rb7 Ne7 Rc7 Ka5 c6 Qc5 Qb7 Qb4 Qbb8
4N3/NK3NR1/1B1r1Qp1/r2kBb1P/2r1RpPq/Q1Q1rQb1/Bn3p2/3N4 b - - 0 1 illegal: Other
1qN1B3/1r3p2/5BkB/3Np2n/1RbbQQp1/1rP1rR1R/1rQ1P2B/K1Q5 b - - 0 1 illegal: No possible last move, all moves rejected
rNrR2Bn/1r4Q1/1pq2pR1/3N3P/1BBB1r2/Q3p2N/Kb1k1PNQ/1n6 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 b6 e4 Qd6 e5 Qd8 d6 Kd7 e6+ Kc6 Ba6 Kd5 Bf1 Bd7 exd7 Ke6 d5+ Kf6 Kd2 Kf5 Kc3 Ke4 Kb2 e5 a4 c5 h4 g5 h6 f6 h5 c4 a6 g4 a5 c3+ Ka2 c2 h7 g3 a7 g2 a6 Nc6 Nh3 g1R Nc3+ Kf5 Be3 c1R Bd4 e4 Bc4 Qe8 d8N e3 d7 Qe4 d6 Nge7 Nd5 Nc8 Ne6 Rg5 d8N Ne5 d7 Rg4 Qg1 Rd1 Nef4 Rg3 Ng2 Rgg8 Nc6 Ng6 d8B Nce7 Qh2 Rg7 Nb8 Qf3 Rc1 Ke4 Rg1 Rhg8 Bc7 Nh8 Bd6 Rg4 Rb1 Rf4 Bb4 Rc1 Rb3 Rg7 Rd3 Rc3 Bb3 Rc8 Bc4 Neg6 Rd2 Ne5 Rdd1 Rb7 Rd2 Nhf7 h8Q Be7 Qg7 Nh8 Ne1 Qh1 Rg6 Nf3 Ng2 Bc5 Rd1 Nd2 Ne7 Re8 Bg8 Qe1 Bdc3 Bd4 Ba1 Nb1 Bb2 Be5 Rd2 Rc8 Rd8 Qc1 Nd5 Kd3 Ba1 Qc6 Bb2 Bc3 Ba1 Be1 Bd4 Bc3 Nd7 Rab8 a8Q Rbc7 a7 Ba1 Be7 Bb2 Bb4 Rbb7 Nb8 Rf7 Be5 Rbc7 Bd4 Rfd7 Qb7 Kc2 Qa6 Re7 Qa3 Re5 Nc3 Ra5 Bc4 Kd2 a8B Qa4 Bc6 Ra8 B6d5 Qc6 Bg8 Rb7 Nd5+
N1qB4/3p3N/1R1b2N1/Nn5b/1kb1B1p1/2QP1BRQ/2p1P1rn/K2RRb2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Ra6 bxa5 b4 c3 Rb6 c4 Rb5 cxb5 Rh6 Qc2 Rh7 Qd1 Rh8 a4 Ke7 h4 g5 d3 c5 Kd2 f5 Kc2 c4 Kb2 g4 e6 Kd6 e7 Kc5 e8R b3 b6 f4 a6 f3 b7 f2 a5 Bh6 a7 Nc6 a8B Bd2 b8R Bb7 a6 Kb5 h6 Bg5 h5 Qa5 a7 Qa6 h7 Ne5 h6 Nf7 Bg2 f1B Re3 Bd8 Qe1 Ne7 Nd2 Ne5 Ngf3 Kb4 Ng5 Nf5 Rg3 Bc7 Bf3 c3+ Kb1 b2 Nb3 Nd4 Na5 Rf8 h8N Bd6 h7 Nb5 Ng6 Be4 h8Q Qc8 Nh7 Bf5 Bfe4 Nf3 Bg5 Nh2 Rb6 Be6 Be7 Bc4 Bd8 Rf2 Bac6 Bf7 a8N Rg2 Bf3 Be8 Bce4 Bf7 Qd2 Be8 Qe3 c2+ Ka2 b1B+ Kb2 Ba2 Re1 Rg1 Ka1 Rg2 Qh6 Bef7 Qh3 Bac4 Ne7 Bh5 Ng6 Rf2 Rd1 Bg2 Rhe1 Bf1 Qf6 Rg2 Qc3+
b1q5/1Q1p2bK/B2N1kPB/1r6/2pQQp2/rQnPN2b/1B1R4/1N1RBb2 b - - 0 1 illegal: No proof kernel
Q1NKnQ1k/b7/2NB3B/2ppr2B/Pp1R1R1N/r3npN1/1q3P2/1b1Q3Q b - - 0 1 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 e5 gxh5 b4 dxe5 Qf6 c3 Qc6 c4 Qb5 cxb5 Bd6 Ba3 Be7 Bc1 Bf8 Kd2 d5 Kd3 f5 Kd4 Kf7 h4 g5 e4 Kg7 a4 g4 a6 f4 h6+ Kh7 h5 g3 a7 c6 b6 g2 e6 c5+ Ke5 Ba6 e7 Bg7+ Kd6 Bd3 Kc7 Bb5 e8Q Bd7 b7 Bf6 e5 Bf5 e6 Bg4 e7 Be5+ Kd8 Na6+ b8N Nf6 Ne2 g1Q Ng3 Bf5 Qf8 Qh2 e8N Bd6 Be2 Bg4 Nd2 Ng8 Nf3 Bd7 Nh4 Bc8 Nc6 Bb8 Nd6 Bf5 Nc8 Nc7 Ra3 Ne8 Rd3 Qh3 Rd4 Ne7 Bg4 f3 Bf4 Bg6 Bd6 Nf5 Re1 Qh1 Ree4 Ne3 Rf4 Qe1 Qb3 Rg8 Qd1 Kh8 h7 Qe2 Be7 Be5 Bd6 Rb8 a8Q Bb1 Qf7 Rg5 Qf5 Kg7 h8B+ Kg8 h6 Qb2 Qf6 Rb7 Bh5 Re7 Bg7 Re6 Bdf8 Bb8 Bd6 Ba7 Bgf8 Re4 Qf7+ Kh8 h7 Rge5 Bh6 Nc4 Qf5 Re3 Qh3 Rc3 Qhh1 Ra3 Bg5 Ne3 Rfe4 Kg7 Bh6+ Kf6 h8Q+ Ke6 Ng6 Kf7 Qf6+ Kg8 Nh4 Kh7 Rf4 Kg8 Qf5 Kh8 Qf8+
2n1k1r1/4BNR1/KQ2pNQ1/1pr5/2P1bN2/p1B1q1pb/P2BR2Q/Q4n1B b - - 0 1 legal: proof: g4 c5 h4 g5 b4 d5 bxc5 f5 gxf5 g4 e4 Bh6 exd5 Bg5 hxg5 Kf8 Bb5 Kf7 Bf1 Ke8 Ke2 a5 Kd3 h5 Kc4 e6 Kb5 h4 d4 b6 c4 a4 f4 h3 f6 h2 f5 a3 c6 g3 f7+ Kf8 g6 Bd7 d6 Ne7 d5 Qc7 Ne2 Bc8 d7 Ra6 d8Q+ Kg7 f8B+ Kf6 d6 Ra8 d7 Rh3 g7 Kf7 g8Q+ Kf6 Bd2 Ra7 Bg2 Ra4 Nf4 Rh4 Nc3 Rh5 Bg7+ Kg5 f6 Na6 f7 Rh8 f8B Qe5+ Ncd5 Nb4 c7 Qe3 Nf6 Bb7 c8Q Nbd5 Re1 h1B Rb1 Rh5 Re2 Ra8 Bh8+ Kf5 Qg6+ Ke5 Qg1 Kd6 Qh2 Rg5 Bf3 Bg2 Rd1 Bf1 Bh1 Bh3 Rb1 Rb8 Bhg7 Ba8 Ka6 b5 Qb6+ Bc6 d8N Rh5 Qcb7 Rc8 Rb2 Rh8 Qd4 Rg8 Qbb6 Rc7 Rb4 Rc8 Qa1 Rc7 Nh7 Kd7 Bgc3 Nc8 Nf7 Ke8 Be7 Ba8 Rb1 Rc5 Rc1 Nf6 Rb1 Be4 Rf1 Nd5 Rf3 Qg1 Rd3 Ne3 Rd5 Nf1 Rg5 Bd3 Qf5 Qf2 Rg7 Qe3 Qg6 Be4 Nf6+
N4bQR/1RbR3K/1p2R1pp/1q3QP1/Nr4k1/P2r2B1/BBpnN3/6Nn b - - 0 1 illegal: No extended proof kernel
4KB1N/rnp1Q1Q1/2pRp2N/8/P2r1k1p/BBqbQr1P/2N5/2N1b1RQ b - - 0 1 illegal: Other
Q1rb1N2/1NP3q1/nb2k1B1/B1B2pB1/p1R2PRK/p1N2bN1/2QR2p1/5r2 b - - 0 1 illegal: Other
2r2q1B/N1NpRR2/1pb1pP2/1PQ5/pNQ1B3/B1kn4/5N2/KRb1n1Bn b - - 0 1 illegal: No possible last move, all moves rejected
K3R1Bq/QR6/4nBp1/bp1n2pr/1R4r1/BNNBQrP1/2kP2p1/5QQ1 b - - 0 1 illegal: Other
1Q4BQ/2N2Qp1/1rrN1R2/2R5/Ppn1pQKB/1bBp2B1/4P3/3rbRqk b - - 0 1 illegal: No proof kernel
2R1B2R/K1pr2k1/B3pNn1/1p4r1/NQ4p1/1nPb2BQ/P2q2QB/rQ5R b - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 d5 bxa5 g4 e4 Bh6 exd5 Bg5 hxg5 Bd7 Bc4 Be6 Bf1 Bc8 Ke2 Kf7 Kd3 h5 Kc4 h4 Kb5 b6 d4 h3 f4 h2 a6 e6 a7 Bb7 g6+ Kg7 f6+ Kh6 g7 Qe7 f5+ Kh7 d6 Be4 d7 Qd6 d8R Qf8 d5 Ne7 f7 Nbc6 Ka6 Ng6 g8B+ Kg7 d6 Qe7 f8B+ Kf6 d7 Nce5 Rc8 Nc4 d8Q Nf4 Bf7 Nh5 Bf4 Bd3 Be8 Rh6 Nd2 Be2 Bg3 Nf4 Qd3 Ng2 Qb1 Qg7 Bfd6 Qh8 Ne4+ Kg7 f6+ Kg8 f7+ Kg7 Nf6 Rh5 Qf3 Rb8 a8Q Nd2+ Ka7 Bd3 Ne2 Qh6 Nc3 Nh4 Na4 Nb3 c3 Qd2 Qe3 Rg5 Qg2 Ng6 Bdf4 Bf5 Ba6 b5 Qef3 Bc2 Qh3 Bd3 Qfg2 Rb6 Be5 Rd6 Bef4 Ne7 Be5 Rd7 Bef4 Kg6 f8Q+ Kf5 Rg1 h1R Qc2 Nc1 Be1 Rd5 Qhh2 Ng8 Qb4 Nb3 Rf1 Rd4 Rf3 Ne7 Rh3 Rd8 Rh8 Rd7 Qhh3 Rg1 Bh2 Rh1 Ne4 Ng6 Beg3 Rd1 Nf2 Kf6 Ne4+ Kg7 Nf6 Rf1 Qb2 Rf3 Rh1 Rf1 Qc2 Ra1 Qb1
1Bk5/3q3N/1q4Qr/Rp1QRpR1/R4n1Q/1Pb1BPNp/1p3rnQ/3K3B b - - 1 2 illegal: Other
1R3rBN/BRn1b1pQ/1R1p4/r1B1Q3/k1p5/n1BbPN2/n1P2p2/Q2Q3K b - - 0 1 legal: proof: d4 h5 e4 b5 g4 e5 dxe5 b4 gxh5 b3 axb3 Bb7 b4 Qg5 b5 Qe3+ fxe3 Bc8 Kf2 f5 Kg2 c5 b4 a5 h4 a4 b6 f4 b7 d6 e6 a3 e7 Kd7 e8Q+ Kc7 h6 Kb6 h7 a2 h5 Nh6 e5 Rg8 h8R Nd7 b8B Bb7+ Nf3 Nf5 e6 Nf6 e7 Bd5 b5 Ka5 b6 Nh7 h6 Kb4 b7 Nd4 Ba7 Ka5 b8B Nf5 Bc4 Bc6 Nc3 Nd4 Bd2 Nf5 Nd5+ Ka4 Rb1 a1N Rb6 Bb5 Bc3 Ng5 h7 Nb3 Qh5 Nf7 e8Q Nc1 Qe5 Na2 Ne7 Ng5 Ng6 Be7 Qa1 Rf8 Rb1 Ne6 Kh1 Nc7 Bg8 Nd4 Rb7 Bd3 R1b6 c4 Qg4 Re8 Qgg1 Ndb5 Qgd1 Nd5 Bc7 Na3 Bd8 Bf8 Bf6 Be7 Bd4 Rf8 Bc5 Nb1 Qf5 Na3 Bc3 Nc7 Qe5 Rf6 Bd5 Rf5 Rhb8 Rf6 h8Q Rf8 Ng1 f3 Qh7 f2 Nh8 Bh4 Nf3 Be7 Rd8 Rf5 Bg8 Rf8 Bb8 Ra6 Ba7 Ra5 Rdb8
3N1N2/1R5n/nrbpRQRQ/ppQ5/2BB1R1n/K4p2/2NP2Pb/Q1k2r2 b - - 0 1 legal: proof: f4 b5 h4 c5 b4 g5 hxg5 e5 fxe5 Be7 bxc5 Nh6 a4 Ng8 a5 Qb6 axb6 Bf8 c4 Ke7 e4 Ke6 g6 a5 g7 h5 b7 f5 c6 h4 c5 f4 c7 h3 c6 h2 Ra4 d6 Nf3 Na6 b8N Rh3 Nd7 Nb8 Bc4+ Ke7 e6 Ra6 e5 Bb7 c8Q Ba8 c7 Be4 Na3 Bh7 Ng5 f3 Nc2 Nh6 g8R Rh5 Rg6 Ng8 Nf7 Nf6 Bb2 Ng4 Qa1 Rb6 Kd1 Na6 Kc1 Rh3 Nd8 Bg7 Bd4 Nf6 Kb2 Bg8 Ka2 Nh7 Nf8 Bh8 Rc1 h1N Ka3 Ng3 Qb8 Rh2 c8Q Rh1 Qc5 Nf5 Qa8 Bf7 Qe4 Rf1 Qe3 Bf6 Qh6 Be8 Re1 Bc6 Rb4 Ke8 e7 Bh4 Re4 Bg3 Rf4 Nh4 Rb3 Nb4 Re3 Na6 Ree4 Bh2 Rf7 Bg3 Ref4 Bh2 Nfe6 Kd7 e8Q+ Kc8 Nf8 Kb8 e6 Ka8 e7 Ka7 Rg8 Rh1 Qe5 Rf1 Bc3 Rb8 Qef6 Kb6 Rg6 Kc5 Qd7 Rb7 e8R Rb6 Be5 Rh1 Qdf5 Rf1 Be2 Kd5 Rb7 Kc5 Re6 Kd5 Bd1 Kc5 Bd4+ Kc4 Qc5+ Kd3 Ne3 Nc7 Bb3 Na6 Qa2 Ke2 Nc2+ Kd1 Bc4 Kc1 Qa1+
kQBQ1N2/r1Bb2rR/1Bb1N3/8/1pb3pp/NP2Npq1/2KbQ2P/4R1B1 b - - 0 1 illegal: Other
3B4/N1p1QrN1/Q1P5/QR1Qr2R/KPN2N1p/p1q1kBp1/1bnnp3/R7 b - - 0 1 legal: proof: g4 d5 e4 b5 exd5 g5 a4 f5 axb5 Be6 h3 Bf7 gxf5 g4 Ra4 g3 Ra5 Bh5 Ra1 Bg4 hxg4 Qd6 Ke2 Qd7 Ke1 Qd8 c4 Kd7 d4 Kd6 Kd2 a5 Kc2 h5 Kb3 e5 f4 e4 b6 e3 b7 e2 g5 Na6 b8R Rh7 f6 Rf7 g6 Re7 c5+ Kd7 d6 Ke6 f7 Kf5 d5 Ke4 f5 Nh6 f6 Qd7 g7 Ra7 g8Q Qd8 d7 Bg7 f8N Bh8 f7 Nb4 d6 Bf6 Ne6 Bg7 f8Q Nd5 Bg5 Nb4 Ka4 Ng4 Na3 Nc2 b4 Nh6 Bg2+ Ke5 Nh3 Rb7 Qd3 Bf6 Qa6 Re8 Bf3 Rb6 Ng7 Kd4 Nf4 Re5 Nc4 Ng4 Qe7 Nf2 Rh2 Qc8 d8N Ne4 d7 Nd2 Rh3 Rbe6 Rb5 Rf5 Rh2 Ree5 Qge6 Qa8 Qeb6 Qc6 Bh4 Bg5 Rh3 Rf7 Rh2 Bf6 Bg5 Qe4 Rh4 Qd3 Nc6+ Kc3 Na7 Kd4 Rhh1 Qc3 d8Q+ Rd5 Qa8 Re5 Na3 Ke3 Qd5 Re4 c6+ Bd4 Rh4 Re5 Rg4 h4 Bf6 Qc5 Rg5 Bc3 Rh5 Bb2 Qed7 Qd4 Bd8 Qc5 Qe7 Qd4 Rc5 Qc3 Nc4+ Kf2 Kb5 a4 Qba5 a3 Ka4 Re3 Rb5 Re5 Nd6 Ke3 Nc4+
B4Q2/nb2p1B1/2N5/BQ1pnbRK/NN1R3b/3qr3/rBRPPrkN/n7 b - - 0 1 illegal: No proof kernel
2bk2q1/QB4nN/3BN1pr/1B3rPR/K1Qb2Br/R3qp2/4nP1N/2Qr3N b - - 0 1 illegal: No proof kernel
1B1RR1K1/1n1Q2B1/k5R1/3R3Q/1pp1r3/nbq1rB1n/1PPB2nq/4NNbQ b - - 0 1 illegal: No proof kernel
2B1bB2/1qk2N2/pq5N/2p1b2R/Rb1Nb3/PQP1n3/1Qr1RrNn/3QR2K b - - 0 1 illegal: No proof kernel
1n1r2R1/bb6/Q2R2N1/BppB2Kn/1rP1p3/1Rq1nB1Q/BP2Q3/k1R1bN2 b - - 0 1 illegal: No proof kernel
Q2b3Q/bb1rNppQ/Bp6/3Qn2r/rnRB1NR1/NP1B1P1q/1k6/3K1N2 b - - 0 1 illegal: No proof kernel
B4k2/2Kb4/2p1qR1Q/2pBnbbN/p1P1rB1Q/P2Q1n2/1r2q1NB/1R1QR3 b - - 0 1 illegal: Other
2kb3B/3N1BR1/R6p/p6r/R1p2QBq/P1P1nqrb/1K4B1/nN1rQ1RQ b - - 0 1 illegal: No proof kernel
R1qqr3/2Q4p/1K3Bk1/1b1pRqQN/1NrBQ1QP/p5b1/1n1P2B1/N5nN b - - 0 1 illegal: No possible last move, all moves rejected
n4rBq/4K1p1/n2BNR2/1pQN4/5BPN/1rb2b2/QPp1N1kB/R2nR2q b - - 0 1 illegal: No proof kernel
3Q4/rnq1RQ1p/R1NN2rb/pb1NB2P/B4rN1/Pn3p1K/1rB5/QQ2k3 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 f4 Nb8 fxg5 Qe7 Qd2 Qf6 Qd1 Qd8 Kf2 Ke7 Kg3 Ke6 c4 Kf5 e4+ Kg6 h4 b5 h5+ Kg7 e6 f5 e5 d5 e7 a6 e8B d4 g6 b4 c6 d3 e6 Kf6 c5 Ke5 g7 Kd4 e7 b3 c7 d2 c6 Ke3 Kh3 Kf2 g4 f4 Nc3 b2 Nge2 b1R Nd4 f3 Nd5 Nd7 g5 Rb3 g6 Rb7 Be2 Rb5 Re1 Rbb8 Bb2 Nh6 g8Q Ng4 g7 Ne3 Qb1 d1R Qf7 Rb4 g8N Bg7 Ngf6 Rd2 Bd1 Nf5 Re6 Ra7 Ng4+ Kf1 a3 Bb7 c8Q a5 c7 Nc5 Ra6 Nb3 Nc6 Nd6 Be5 Bh6 Qce6 Rb6 c8Q Rf8 Qef6 Qc7 Qd8 Ke1 Bd7 Rg2 e8N Rb2 Ra2 Ba8 Qh8 Nb7 Nd6 Rb4 Ra1 Rf4 Be8 Rg8 Ra2 Rg2 Rf2 Rg6 Re2+ Kf1 Re3 Rb2 Bf6 Rd2 Ncb4 N7c5 Ba4 Bc6 Re7 Bb5 Nc6 Nb7 Ba1 Rc2 Qhb2 Rd2 Q2a2 Rf2 Be5 Rb2 Qaa1 Ke1 Bc2+
1k3bb1/1b2N3/p5q1/1p2NR2/1P1prN2/1nQrR2B/P1QnKb2/2BBQN1B b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 c5 hxg5 Nh6 d4 Ng8 dxc5 Qc7 Qd5 Qb6 Qd1 Qd8 f4 b5 g4 d5 b4 Kd7 c4 Kc7 g6 e5 g5 h5 f6 d4 f7 e4 g7 e3 g6 a6 f5 h4 c6 h3 c5 h2 f6 e2 Qc2 Be6 Nd2 Qd5 Bh3 Ra7 Nf1 Rh7 Nf3 Qd6 Ne5 Be7 f8N Bb3 f7 Bc4 Ne6+ Kc8 f8Q+ Bd8 c7 Nh6 g8B Nc6 g7 Nf5 Qe7 Na5 Nf4 Qg6 Bd5 Nb3 g8B Rf7 Rg1 h1B Rg3 Be4 Ba8 Bb7 Re3 Be6 Kf2 e1B+ Ke2 Bf2 Qh4 Be7 Qc3 Bg1 Qhe1 Nd6 Rb1 Nc4 Bh7 Qg3 Bc2 Bf8 Bd1 Qg6 Rb2 Rf5 Rd2 Bf2 Rdd3 Nd6 Rf3 Nc4 Rde3 Bg8 Qc2 Be4 Bc6 Ncd2 Bd5 Qc6 Qc3 Kb7 c8N Kb8 Ne7 Qg6 c6 Rg5 Qc2 Rg3 Qc3 Rc7 Qc2 Rc8 Qc3 Re8 c7+ Ka7 Ba8 Bed5 c8Q Bb7 Qf5 Kb8 Qfc2 Qg7 Nfd3 Qg6 Rf5 Rf3 Nf4 Rg3 Re4 Rd3 Re3 Bc8 Bh1 Bb7 Ned5 Re6 Nc4 Re5 Ne7 Re4 Ne5
N1qR1B2/K4Rbn/1n2ppBQ/1B3P1b/Q4rN1/4p1k1/1r1pP1B1/1NN1rQ2 b - - 0 1 illegal: Other
5NBR/N1k2bn1/N3qb2/rp1Qp1p1/1Q2P1QB/B5Pr/2K2R1p/bQ1n3B b - - 0 1 illegal: No proof kernel
N4RRk/pBpqn1p1/R3B3/bbP1nn1p/4B1P1/2B2r2/1r2QQK1/4RNQ1 b - - 0 1 illegal: No possible last move, all moves rejected
R7/1KpBR2n/1B2b1nQ/2Np1R2/Np1rBp1R/2P3b1/1P1Q1rqB/3Qr1k1 b - - 0 1 illegal: No possible last move
kQ1n1Br1/Nppp4/2bb4/3RNN2/4nrR1/1P1q1B2/Rr1P1BpB/2K1Q1R1 b - - 0 1 illegal: No possible last move, all moves rejected
3r3N/5BRq/1NBN1BR1/4p3/p1Qb1pp1/Kn1bPR2/Pr3N2/BqQ2kn1 b - - 0 1 illegal: No proof kernel
1BnKR3/b1p1QbQN/p4n2/N2RNRNp/P1qB1p2/r5qr/5k1P/B2B4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 g5 cxb5 Bh6 f4 Bg7 fxg5 Bf8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 e4+ Kh4 b4 f5 g4 h5 a4 d6 e6 a6 e5 Qf6 b6 Ra7 b7 Nd7 Kc6 d5 b8B d4 b5 d3 b6 d2 b7 Rh7 g6 Bd6 g5 Bb4 g7 Bc5 g6 Bb6 Nf3+ Kg4 Ng5+ Kf4 Qg4+ Ke3 Bb2 d1Q Be2 Qg1 Na3 Rh6 Rd1 Ra8 Ba7 Qf8 b8B Qb4 e7 Nc5 e8R Rh7 e6 Qg3 e7 Qg1 Ba1 Qd2 Nc4+ Kf2 Na5 Qc3 Rd5 Qgg3 Bd1 Nf6 g8N Rf7 g7 Qd4 Nh6 Nb7 g8N Nd6 Rg1 Rg7 Nhf7 f4 Ne5 Be6 Re1 Nc8 Rg1 Ne4 Nf6 Bf7 Kd7 Qc4 Nfh7 Nf6+ Kd8 Be3 B7d4 Rg6 Bba7 Rb8 Re1 Rb2 Bb8 Ra2 Rf8 Rg7 e8Q Ra3 Qe7 Rg6 Qgd7 Rg8 Ne6 Rg4 Neg5 Rh4 Re8 Bg6 Qg7 Bf7 Qe7 Rh3 Re2+ Kf1 Rb2 Kg1 Rbb5 Kf2 Bdb2 Ba7 Bd4+ Kf1 Ng4 Kg2 Rf5 Kf1 Ne5 Ke1 Rd5 Kf1 Bdc3 Kf2 Bd4+
1q1k3q/2BBbB1N/3q4/1P1Rn2P/K1Nb1RnQ/1r2r1NN/1q4N1/4N2B b - - 0 1 illegal: No possible last move, all moves rejected
8/2RnRQB1/1B1kBr1q/3R3N/r1P1r1Bb/bP1R1R2/q3NR1K/1bb5 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 g5 Kf2 a5 Kg3 d5 h4 Kd7 c4 e5 b3 d4 c6+ Kd6 b6 e4 h6 e3 h7 d3 c7 g4 b7 e2 h5 e1Q+ Kh2 d2 f6 a4 f5 a3 h6 a2 f7 Qe4 f6 Ke6 Be2 Nd7 b8R Qf5 Qf1 d1R Nd2 Ra5 Rb7 Qd5 Ne4 Qe5+ Ng3 Bc5 f8R Ba3 f7 Qc3 Be3 Qdf6 Nh5 Kd6 Bb6 Rd4 Rd1 a1B Rd3 Ne7 Rd8 Qc1 f8R Qd2 Qf2 Qg6 Rff3 Rf8 h8R Qa2 h7 Rf6 Rhf8 B1b2 h8B Bc1 Bg7 Ra4 Rfe8 Nd5 Re7 Qh6 Ra7 Bb7 c8B Bc6 Rc7 Re4 Bd1 Ba8 Ne2 Bb7 Rf1 g3+ Kh1 g2+ Kh2 Qh7 Qd4 Qh6 R1f2 Re3 Qg4 Re4 Qg6 Ba8 Qf7 g1B+ Kh3 Bh2 Rd4 Bg3 Kg2 Bh4 Kh2 Rf5 Rf8 Nc5 Be6 Nd7 Rfd3 Rf6 Nc3 Bc6 Bdg4 Nc5 Ne2 Be8 Qg8 Bg6 Qf7 Nd7 Rd2 Rf3 Qe8 Ref4 Rd1 Bb1 R1d3 Re3 Rf6 Re5 Qf7 Rfe4 R6f4 Rf5 R4f3 Rf6 Rxd5#
bBRN4/q1n1Nr2/1b1n2P1/PN2b3/N3NNB1/2p1Rq2/2B1B1kn/1QK5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 f4 d4 fxg5 d3 cxd3 Qd7 d4 Qd6 d5 Qd8 h4 b5 g4 Nf6 h5 Ba6 h6 Bc8 g6 Ng8 g5 Ra6 Bc4 Rf6 Bd3 Rf7 Bf1 Rg7 hxg7 Qd6 Bc4 Qd7 Bf1 Qd8 d4 Kd7 Kd2 Kd6 a4 e5 a6 c5 f6 h5 a5 e4 a7 b4 a8N b3 f7 c4 Nh3 h4 Nf4 h3 Be2 b2 Nc3 b1Q Re1 h2 Nc7 h1N Na4 Be7 f8N Ng3 Nd7 Rh7 Nf6 Nh6 g8B Qb6 g7 Ngf5 g6 Na6 Be6 Ng4 g8B Qf8 Bd7 Bd8 Nb5+ Ke7 Bge6 Nd6 Bf5 e3+ Kc2 Rg7 Ne4 Nh2 Bfg4 Rh7 Bdf5 Rf7 Bb2 Be6 Qb1 Nc7 Kc1 Qa7 Ra3 Bd7 Rc3 Bc6 Ba3 Ba8 Bc5 Qb8 Ba7 Qb6 Bb8 Qa7 Nf2 Kf6 Bc2 Kg5 Ne4+ Kh4 Bh5 Nb7 d6 Bf6 d5 Be5 d7 Nd6 Beg4 e2 d8N Ne6 Re3 c3 Nc6 Nc7 Rh1 e1B Ne7 Bf2 Rd1 Nf5 d6 Bg1 d7 Nd6 d8N Bf2 Ree1 Bb6 Be2 Nf1 Bhg4 Nh2 Nf6 Kg3 Rd3+ Kf2 Re3 Qh8 Rd1 Qh5 Rdd3 Qh3 Ne4+ Kg1 Rd5 Qf3 Rc5 Kh1 Nfe6 Kg2 Rc6 Nd5 Rc8 Nc7 Nf4+
2B1n1bR/1NQR3b/P3N1q1/2RR4/pR4bn/k1K4P/qN5B/3RN1nr b - - 0 1 legal: proof: f4 b5 g4 d5 c4 e5 cxd5 h5 gxh5 Ne7 fxe5 Nbc6 a4 Ng8 a5 Nb8 b3 Bc5 b4 Bb6 axb6 a5 b7 a4 Ba3 Qd7 Bc1 Ra5 bxa5 Qd8 d4 Ke7 Kd2 g5 e4 f5 d6+ Kd7 h3 Kc6 e6 b4 h6 g4 d5+ Kc5 e7 b3 e8R Kb4 e5 c5 e6 g3 e7 b2 h7 f4 d7 f3 d6 g2 Qc2 f2 Nf3 g1Q Nc3 b1B Nd1 Qc7 d8N c4 d7 Na6 b8R+ Qb6 Bd3 f1B Bf5 Nc7 a6 Nh6 Bb2 Qb5 Be5 Rg8 h8R Qb7 Bg4 Nf5 Bh2 Nh4 Be6 Ba2 Rc1 Ka3 Qc3+ Qb3 Rb4 Bb1 Nb2 Bh7 Nb7 Rg3 Qg7 Qa2 d8R Rg6 Kc2 c3 Rd2 Bc4 Red8 Qb6 e8N Rg1+ Bf5 Bf7 R2d5 Bfg8 Qe7 Qf6 Ng7 Ne8 Qc7 Qg6 Kd3 c2 Kd4 Rg3 Rhd1 Rg1 Ne1 Rh1 Kd3 Bd7 Kd2 Bb5 Be6 Be2 Bc8 Bf3 Ne6 Bg4 Ra1 c1N R8d7 Ne2 Rac1 Ng1 Rcc5 Nf5 Kd3 Nh4+ Kc3
2r2q1b/K1P3pB/1R4N1/1B1r2BN/R2k1b1q/q2n3N/2B1r1NP/1Q1BB3 b - - 0 1 illegal: Other
qBk1Nq2/2RN1BPQ/q4RbK/3n4/2p1RPR1/4nRB1/rB3R2/2q1r3 b - - 0 1 legal: proof: g4 b5 c4 d5 cxd5 f5 e4 g5 exf5 e6 h4 b4 hxg5 b3 f4 Ne7 f6 Qd6 g6 Bh6 g5 Bg7 fxg7 Qd8 axb3 Ba6 b4 Ng8 b5 Bc8 Ke2 Kd7 Kf3 a5 Kg4 c5 Kh5 e5 b4 e4 d4 a4 b6 e3 b5 a3 d6 a2 d5 h6 b7 e2 b6 e1Q Nf3 Ra5 Bb2 Ra4 Nc3 Qf6 Qc2 Qb1 Ne4 Qc1 Rh2 Qd2 Rf2 Ne7 g8R Nbc6 b8B Qdd4 g7 Qe6 b7 Ne5 g6 Ra5 Rf8 Ra3 g8R Rd3 Re1 a1Q Rf6 Rc3 Bc4 Qa6 Ba7 Rb3 b8B Re3 Rg7 Kd8 d7 Qec6 Nd6 Ng4 Ne8 Qa8 Ne5 Qd2 Rh7 Qc1 g7 Ra3 Re4 Ne3 Bb3 Ra2 Bc4 Nc6 Kg6 h5 Kh6 h4 Qb1 Ke7 d8R Bf5 Rc8 h3 Rc7+ Kd8 d6 h2 d7 Bg6 Bf7 c4 Bad4 Nb4 Bdc3 Qf1 Be1 Nbd5 Rf3 Qd3 Bg3 Qda3 Qc2 h1Q+ Qh2 Q3d6 Qh5 Ke7 d8R+ Qd7 Kg5 Nb6 Rfc6 Ra1 Bg8 Qc1 Qh2 Ra5 Rh4 Ra2 Rg4 Rh3 Rd6 Rh6 Rd2 Nbd5 Rdf2 Rh7 Qh1 Rh2 Be6 Rg2 Bg8 Rg1 Qh7 Rf1 Kh6 Re1 Rc6 Qc7 Rc8 Qd6 R8c7+ Kd8 Nd7 Qb4 Rf6 Qf8 Ra7 Kc8 Bf7 Nc3 Rb7 Ncd5 Rc7+
1N1b3B/1krn2N1/p2rB3/q2R4/1r1P1QK1/rq1B1P2/r2NN3/2NB1RN1 b - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 e5 cxd5 b5 a4 e4 axb5 Be7 f3 Bf8 Na3 f5 Nb1 f4 Rh4 e3 Rh5 Bf5 Rh1 Be4 fxe4 Kd7 Rh5 Ke7 Rh1 Ke8 Nc3 f3 Nb1 Nc6 Qb3 f2+ Kd1 Nd4 Qa4 Nf3 exf3 Qb8 Ke2 Qc8 Qd1 Qd8 b4 Kd7 g4 Kc8 g6 c5 d6 h5 e5 a6 g7 h4 g5 h3 d7+ Kb8 e6 h2 b6 c4 b7 c3 g6 c2 b5 Qe7 d8N Qg5 e7 Qc5 e8N Qc8 Bb2 c1Q Nf7 Q8c2 Ne5 Qa4 Nd3 Ka7 b8N Qh4 b6+ Kb7 Ra5 Qd8 Nc6 Rh4 Qa4 Be7 Qf4 Qc2 Nd4 Qd5 Nc1 Qg5 Rd5 Nf6 g8B Rd8 g7 Nd7 Be6 Qb3 g8B Rc8 d3 Rc7 Nd2 Bd8 Ng7 Rg4 Ndf5 Qh5 Ng3 Qe5 Ba1 Qec3 Bh7 Qa5 Be5 Rg6 d4 Rf6 Bd3 Rh6 Bfh3 f1R Bhf5 Rf2+ Ke1 Rg6 N3e2 Rh6 Bc2 Rg2 Bd1 Rf2 Bg8 Rd6 Bge6 Rg2 Bd3 Rf2 Nh3 Rg2 Rf1 h1R Nhg1 Rh7 Nc3 e2 Bf6 Rc4 Be5 Rb4 Bf6 Rg5 Kf2 e1R N3e2 Rgh5 Kg3 Rh2 Kg4 Rf2 Ng3 Re3 N3e2 Qba2 Bb1 Ra3 Bd3 Qb3 Be5 Kb8 b7 Kc7 b8N Kb7 Nc4 Rfh2 Nc3 Rha2 N3e2 Rc6 Nd2 Rc7 Nh5 Rh6 Bh8 Rf6 Ng7 Rh6 Bef5 Rd6 Be6
2q1BRr1/1Pb2K1B/Q5r1/8/n3BP1n/3q1pN1/N2p1BkN/B2BNRb1 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 h5 g4 c4 gxh5 c3 f5 Bb7 dxc3 Rh6 c4 Bc8 c5 Rh8 e3 e5 Bh3 Bb7 Bg2 Bd5 Bf1 Be6 fxe6 Qf6 Ra3 Qg5 Ra1 Qd8 Be2 f5 Ra6 f4 Bf1 f3 Ra3 Qf6 Ra1 Qf4 exf4 Bd6 Ra6 Be7 Ra1 Bf8 Kd2 Ke7 Ke3 Kf6 Ke4 a5 Kd5 Kf5 b4 Kg4 h4 Kg3 c4 g5 h6 a4 e7 e4 e8B a3 h5 e3 c6 a2 c7 d6 Ke6 e2 c8B e1B b6 g4 h7 d5 c5 d4 b5 d3 h6 Be7 c6 Bf6 c7 Be5 b7 Bg7 b6 Ra4 Ne2+ Kf2 Kf7 g3 Nbc3 g2 Ng3 g1Q Be2 Rc4 Be3+ Kg2 Bf5 d2 c8B Bf8 Qa4 Be7 Bf2 Nc6 b8N Na5 b7 Bf8 Nc6 Ne7 Nb4 Bg7 Bd1 Rd4 Be4 Be5 Nc2 Rd6 Bcf5 Nc4 Qa6 Rg8 h8B Rdg6 h7 Qf1 Rc1 a1Q Na2 Qe2 Rf1 Nb6 Bf6 Qb5 h8N Bc7 Bb2 Qc5 Bbd4 Qb1 Ba1 Rh6 Bh7 Nf5 Ng6 Na4 Ne5 Rhg6 Ng4 Nh4 Nh2 Qbb5 Rb1 Qd3 Rb5 Qc6 Rf5 Qcc3 Bd4 Bf2 Ba7 Bg1 Bf2 Qe3 Ke7 Qed3 Rf8 Qc5+ Kf7 Qf5+ Bf6 Qg4 Ba1 Qc8 Ne1+
8/R1Nbk3/P1N5/p4Q2/2nNrpN1/N1n1RPB1/3Bb1N1/rBbBKb2 b - - 0 1 legal: proof: d4 c5 a4 a5 g4 h5 gxh5 e5 dxe5 b6 b4 Ra6 bxc5 Qh4 Qd5 Qc4 Qd1 Qb5 axb5 Be7 bxa6 b5 Bg5 Bd6 Bc1 Bf8 c4 f5 h4 d5 e4 g5 h6 b4 c6 d4 h5 g4 c5 g3 f3 g2 e6 d3 c7 b3 c6 b2 e7 Nd7 h7 Nb8 e5 Bh6 Ne2 g1R Nd4 Rg4 Bd2 Nf6 Be2 Bf8 h6 Ng8 Qc2 Rf4 Na3 b1B Bd1 Be6 c8B Bea2 c7 Kf7 e8N Be7 e6+ Kf8 Nf6 Bd6 e7+ Kf7 e8N Nc6 Ng4 Nge7 Bd7 Bd5 c8N Be6 Nc7 Nd5 Na7 Ne5 Nac6 Nc4 Bc8 Re8 h8B Nc3 h7 Bd7+ Be5 Bb4 Rh2 Re4+ Re2 Bc5 Bg3 f4 h8N+ Kf8 Re3 Ba2 Nab5 Ba3 Rb1 Bc1 Na3 R8e5 Rb6 Rb5 Rb7 Rb1 Ra7 Ra1 Ng6+ Kf7 Nh4 Kf8 Nb4 Ke7 Ng2 Bb3 Ne5 Bba4 Qb1 Bh3 Bf5 Bd7 Nh4 Bg2 Ng4 Bf1 Ng2 Re5 Bc2 Kd6 Nbc6 Re8 Be4 Re7 Qb5 Re6 Qf5 Re5 Nb4 Ke7 Bb1 Re6 Bc6 Re4 Ba4 Bb2 Bc1 d2+ Kf2 d1B Bd2 Bde2 Ke1 Bc1 Bb3 Nb2 Bd1 Nc4 Nbc6+
qN2B1Q1/n5n1/K1NPRkqP/1n2Npp1/3b1n2/1r3NN1/5B1B/R2B3N b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 g5 c4 b5 cxd5 a6 axb5 Bb4 h4 Be7 h5 Bf8 g4 a5 Nf3 Bf5 Ng1 Bg6 hxg6 h5 g7 h4 Qa4 Rh5 gxh5 Ra6 Qb3 Rh6 Qd1 Rh8 b4 Ke7 e4 c5 Ke2 f5 Kd3 a4 Kc4 h3 d4 h2 d6+ Kf7 b6 a3 Kb5 c4 e6+ Kf6 d7 a2 e5+ Ke7 d5 c3 b7 c2 h6 Na6 b8N Nf6 Ne2 Qc7 d8N Qd6 g8N+ Ke8 e7 Nc5 Be3 c1N Ndc6 Kf7 e8N Ng4 e6+ Kg6 e7 N1b3 Bf2 Na5 Ng7 Nc4 e8B+ Kh7 Ne5 Nb6 Nd2 Be7 Ndf3 Nc8 Nh5 Nd3 Qb3 Qg6 Nhg3 Bf6 Ne7 Nf4 Ka6 Na7 b5 Rg8 Re1 a1N b6 Nc2 b7 Nd4 N7c6 Ndb5 Rg1 Bh8 Nh1 Nf6 Neg3 N6h5 Be2 Ng7 Ra1 Rf8 Rge1 Rf6 Bd1 Re6 Nf7 Re3 Qa2 Rb3 Re7 Kg8 N7e5 Ngh5 Ned7 Bd4 Nde5 Ng7 Nbd7 Kh8 b8B Kh7 Bd6 Qe6 Ndb8 Qg8 Nf7 Kg6 N7e5+ Kf6 Bc5 Qh7 d6 Qg6 Bg1 Rc3 Qg8 Rd3 Nf2 h1Q Bh2 Rb3 Bb6 Qe1 Nfh1 Qe4 Bc5 Bb2 Bf2 Bd4 Na5 Qa8 Nac6 Rb4 Rb1 Rb2 Ra1 Rb3 Re6+
5N2/1N1Pkq2/R6Q/1pb1NbR1/b1NP1q1B/np1BB3/B5B1/2B1b1nK b - - 0 1 illegal: Other
2Q5/K1nR1NB1/N2R2B1/Pb5R/np3BB1/4rbPp/R4R1p/n1k3rR b - - 0 1 illegal: Other
4n1qR/1q2P3/1bB3nK/rRk1B2N/B1p1pn2/Q1P5/1BRR2p1/1R3NR1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 e4 d5 exd5 Bd6 a4 Ke7 f5 Be6 fxe6 Ke8 axb5 a4 Na3 Ra7 Nb1 Ra5 bxa5 Bf8 Kf2 Ke7 Kf3 Kd6 Kg4 c5 d4 g5 h4 f6 a6 a3 e7 e4 h6 a2 Kh5 f5 b6 f4 h7 f3 b7 f2 a7 g4 a8B g3 c3 g2 Nd2 Qc7 Nh3 Nd7 b8R Bh6 Rb4 Bf4 Rab1 a1Q Bb5 f1N Bac6 c4 Qb3 Qca5 Qa3 Qa8 Bb2 Nh2 Rhg1 Bg5 Ba4 Nb6 Nf1 Qa6 Nf4 Kc7 d6+ Kc8 d5 Qb7 d7+ Kc7 d8R Ng4 Kg6 Bf6 h5 Bd4 h6 N8f6 Nh5 Ne8 Rd6 Rf8 h8R Rf5 h7 Ne5+ Kh6 Ng6 Rf6 Re5 Rf2 Kd6 Rc2 Kc5 d6 Nd5 d7 Ndf4 d8R Be3 Rdd2 Qa2 Re2 Qb3 Rcd2 Qd1 Rc2 Qd5 Red2 Rf5 Rf8 Qg8 h8B Rd5 Be5 Rd8 Rf7 Ra8 Rh7 Ra5 Rh8 Bd4 Bf6 Be5 Bg7 Bc7 Be5 Bb6 Rb5+
1R2rNR1/3Rq3/QPp5/q1pqb1B1/1NNr4/5p1b/2k1PRBN/3NK1N1 b - - 0 1 illegal: Other
2R5/1bn1B3/1BR2Nrp/Qp1PN2P/5kN1/nK1b1pN1/3B1p2/1BN3Nr b - - 0 1 illegal: Other
KQ2NB1R/1pN4P/4B1Np/1P4N1/4rn1B/5b1B/p1p1kRp1/1rr2N1N b - - 0 1 illegal: No possible last move
1qB2K1R/bnB5/3Q1B1B/N5q1/kBqR1r2/Pb1b1rP1/3R4/2Rn1BNr b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kf3 b5 Kg4 e5 Kh5 c5 d4 b4 f4 b3 a6 c4 f6 e4 a7 c3 d6 Kc6 g3 b2 d5+ Kc5 d7 Kb4 f5 h6 Kg6 e3 Kf7 e2 d6 e1Q g6 h5 g7 h4 Bg5 c2 a3+ Ka4 Rh2 h3 Nd2 b1B Nb3 c1Q Rd2 Ne7 g8R Rh4 Rh8 h2 Na5+ Qc2 Bh6 h1R Bg7 Qc7 d8R Qe5 d7 Na6 Ke8 Nc5 f7 Rf4 f6 Ba2 Rc1 Qg5 Bh6 Bg7 f8B Nb7 f7 Nf5 Be7 Bd4 f8B Ne3 Bf6 Bb3 Bb4 Q2c4 Kf8 Rb8 a8B Ba7 Rd4 Rf3 Qd2 Nd1 Qf4 Qb6 Qd6 Rf4 Re8 Qbb5 d8B Bf5 Re2 Bd3 Rf2 Rc8 Rd2 Rc5 Bb6 Rcf5 Bc7 Rf3 Nh3 R5f4 Ng1 Nc5 Bd5 Nb7 Be6 Qb6 Bd8 Qbc7 Bc8 Qb8 Bc7
R2N1q2/nQ1B1k1P/3B1brR/bR2bNP1/1r1R4/b1Rbq2R/K3B1B1/1n6 b - - 0 1 illegal: No proof kernel
4Q2R/1r4B1/1BN2qq1/1N2Bbnb/P1n1k1bB/1B5P/Nn3KB1/bR2N2r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a4 Ke7 d4 g5 e4 b5 e6 Kf6 e5+ Kf5 h6 c5 a6 c4 a7 c3 e7 f6 e8N c2 h7 g4 e6 b4 e7 b3 d6 g3 d7 g2 d5 b2 d6 Na6 Qe2 Nc7 Nc3 b1B Nf3 g1Q Bh6 c1N Bg7 Rb8 a8B Ne6 Na2 Nh6 Nc7 Ng4 e8N Rb7 Nb5 Ne3 Na7 Qg6 Nc7 Ke4 Kf2 f5 Bg2 f4 Ne1+ f3 Nc6 Qdf6 d8B Ng5 Nb5 Bg4 d7 Bb4 Be7 Bc3 d8B Bh5 Bb6 Nd3+ Kg1 Nb2 Kf2 Bc2 Rb1 Bd3 Qd2 Be2 Qd8 Nec4 Qe8 Bd3 Bf1 Bc2 Be2 Bd3 Bd1 Be5 Bb3 Bd4+ Kg3 f2 Kg2 f1B+ Kg3 Rf8 h8B Bfe2 Kg2 Beg4 Bed8+ Qe7 Be5 Rf1 Bhg7 Nd1 Kg3 Ba1 Kg2 Ndb2 Kg3 Rg1+ Kf2 Qee6 Bdf6 Nf3 Bh4 Ng5 h3 Qe7 Rh2 Rh1 Rg2 Bc2 Rg3 Qef6+ Rf3 Qd6 Rf8 Bd3 Rh8 Qdf6+ Kg3 Bf5 Kg2 Bde2 Kf2 Beg4 Kg2 Ra7 Ncd4+ Ke3 Kg3 Rf7 Bg2 Rb7 Nc6+ Kd2 Nf3+ Kd3 Kf2 Ke4 Ne1+
1q2RK1R/1PN4N/3R1BB1/b4b2/1nRNbn2/NN5N/1Q1bk1Pb/b1r4r b - - 0 1 illegal: No proof kernel
2B1bnq1/2B1Pn1b/RnkNb1RB/4BBQ1/2rb3r/1BN2P1N/1K4N1/4n3 b - - 0 1 illegal: No proof kernel
bN2B3/Bb3N1n/1rnb1R2/1q2B1nk/5R2/RPP1r2r/KB1p4/QB1B2R1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 h5 Kb3 a5 g4 e5 f4 d5 c3 d4 c6 h4 c7 a4+ Ka2 a3 g6+ Kf6 b3 h3 b6 d3 b7 h2 g5+ Kg7 Be2 e4 Nh3 e3 Nd2 Qd5 Nc4 d2 Ne5 Ne7 f6+ Kg8 f7+ Kg7 f5 Be6 c8B Rh5 f6+ Kh8 g7+ Kh7 g8R Ra6 g6+ Kh6 g7 Qb5 Bd7 Rd6 Be8 Nec6 Ng5 Qa4 Rg1 h1B Nd7 Qb5 Bb2 Rh3 Qc1 Bf5 Bd1 e2 Rh8+ Bh7 g8B e1N Qb1 Be7 f8R Nf3 f7 Kh5 Qc1 Rh6 Qb1 Bd3 Bh7 Be4 Qc1 Bd5 Bb1 Bd6 Rhg8 Re6 Rg6 Re3 Rf6 Bg2 Nc5 Be4 Na6 Nd7 b8B Bd5 Rf4 Nf6 Ba7 Nh7 Nb8 Bh1 Rg8 Be4 Rg6 Bd5 f8B Bg2 Nf7 Bh1 R1g4 Nfg5 Bg7 Bhg2 Be4 Bf3 Be5 Bg2 Kb1 a2+ Kc2 Ne7 Rgf6 Bf3 Rg1 Ba8 Rb1 a1R Bd3 Ra6 Ra1 Bc5 Kb1 Bd6 Ra3 Rc6 Ka2 Rb6 Rgg4 Bh1 Qa1 Bhb7 Bb1 Nc6 Rg1+
1nrn1B2/1QR5/1R2B1b1/Kp1R1rq1/B2P2b1/3B2PR/Bb3r2/NN2n1Bk b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 a4 Kd7 f4 Kd6 d4 c5 Kd2 e5 Kc3 h5 f6 h4 f5 h3 a6 e4 a7 e3 g6 b6 f7 c4 Kb4 c3 g7 c2 a5 e2 f6 e1R a6 h2 Nf3 Nh6 g8B Qe8 Nfd2 Nd7 Nb3 Bg7 f8R Re5 f7 Nf5 Qf3 Ne7 Bf4 c1N Bd3 Bh6 Qe4 Rb8 a8B Qd8 a7 Nc6+ Kb5 Qg5 Ra6 Nd8 Bc6 Rb7 a8B Nb8 Na1 Bg4 Kb4 Rc7 Ba4 Rc8 Re8 Rc2 Re7 Rf2 Rc7 Bf8 B8c6 b5 Rb6 Be7 Ka5 Bf8 Rf1 h1B Bh2 Be7 g3 Ref5 f8B Bhf3 Qe3 Be4 Be6 Rg8 Qf3 Rh8 Bdc2 Nd3 Rh1 Ne1 Qg2 Rf7 Bd3 Bg6 Bg1 R7f6 Rh3 R6f5 Bh2 Nf7 Bg7 Rc8 Bh6 Nd8 Qe4 Bf8 Bcd7+ Ke7 d6+ Kf6 Qb7 Be7 Bc6 Bf8 d7 Ba3 Bg2 Bb2 Bh1 Qh5 Bf8 Kg5 Bhd5 Qh6 Ba2 Qg7 Rh7 Qh6 Rg7 Kh5 Rg8 Qg5 Rh8+ Bh7 Qh1 Bh3 Qd5 Kg4 Bg8 Bg6 Be6 Nf7 Qc4 Kf3 d8R Kg2 Rd5 Kh1 Qc6 Nd8 Qb7 Bg4 Rh4 Nd7 Rh3 Nb8 Bg1+
B3B1r1/n1P1pNkn/5qNr/B5N1/1n1rB3/P3RBKb/5Rb1/bQ3BN1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 f4 Kf7 Kf2 h5 g4 b5 c4 d5 c6 h4 g6+ Kf6 a3 h3 c7 b4 g5+ Kg7 a6 h2 c5 d4 a7 b3 c6 d3 Nd2 b2 Ndf3 b1R Kg3 d2 Ne5 Rb6 Nf7 Rh7 Ra2 Ba6 c8B Qd5 c7 Bb7 Bd7 Rd6 Be8 Nh6 f6+ Kg8 f5 Ba6 g7 Re6 Bb2 Rh8 Qb1 d1N Bc3 Nf2 Ba5 Nd3 Re2 Nc6 Re3 Rd8 a8B Qd4 Nd6 Qa1 f7+ Kh7 f6 Ng4 g6+ Kh6 g8B Bc8 g7 Ndb4 Bh7 Na7 g8B Bg7 f8N Qc3 f7 Nf6 Bg6 Nh7 Bf5 Rf6 Ne6 Rd7 f8N Rd8 Bgf7 Rg8 B5d3 Qa1 Ng5 Bh3 Bh5 Re6 Ne2 Bd4 Bhf3 Kg7 Bde4 Rh6 Rg1 h1B Rg2 Bb2 Rf2 B1g2 Ng6 Bf6 Qd1 Qd4 Qb3 Qb6 Qd3 Ba1 Ndf7 Qf6 Qb1 Rd4 Ng1
b5K1/3qN1Rr/2n2R2/R1k5/3n1b1N/1rB3Pr/2pBPBnq/RRR3QB b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kg3 a5 Kh4 h5 b4 c5 d4 f5 b6 c4 g6 f4 Kg5 h4 b5 h3 g3 f3 b7 f2 b6 h2 g7 c3 Kg6 c2 d6+ Kd7 Kf7 Kc6 d7 a4 d5+ Kb5 e6 a3 d6 a2 e7 Ra3 e8R Qc7 Nf3 Ra7 Bg2 f1Q Nc3+ Kb4 Nd5+ Kc5 Re5 Kc4 Bd2 Nc6 b8B Rh6 b7 Nge7 d8B Nf5+ d7 Ra3 g8R Nh4 Rg7 Qg1 Bf6 Bd6 Kg8 Rb3 d8R Kc5 Rf8 Rh7 Rf5 Bf4 Bfc3 Qd6 R8f6 Qd7 Bbe5 Qf2 b8R Bb7 Ne7 Ba8 Re1 Qg1 Bh1 Ng2 Nh4 Qf2 Rc1 a1N Rb7 Rb6 Ra7 Nb3 Raa1 Nbd4 Rf1 Rb3 Qe1 Qf3 Qf2 Qd3 Qg1 Qe3 Rcb1 Qf2 Rfc1 Ne1 Be4 h1R Rh5 Rh3 Bh1 Qh2 Bd6+ Kc4 Rha5 Ng2 Bc5 Ne6 Bf2 Ned4 Ra7 Kc5 R7a5+
b5K1/B1R2Rn1/2Bq1RBp/4q3/B1qrPr2/1r1PQ3/RB3bk1/1N3NBn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 a5 Ke4 c5 Kf5 c4 b4 c3 e4 f6 g4 h6 Kg6 a4 Kf7 c2 d6 a3 g6 f5 g7 a2 b6 Kc6 b5+ Kc5 d7 Kd4 g5 f4 e6 f3 e7 f2 e8B Nf6 g8R Ra5 b7 Nh7 b6 Ke5 g6 Kf4 g7 Kg3 Nf3 Rc5 Qe2 Rc3 Qe3 Rc4 Bb2 Bb4 Rf8 c1Q g8B Na6 b8B+ Nc7 b7 Rd4 Ba7 Ne6 b8R Nf6 Bb5 f1R d3 Bc5 Rb6 Bb7 Bh7 Ng7 Bc6 Kg2 Nfd2 Ba8 Bg6 Rf4 Nf1 Qc2 Ba4 Nfh5+ Rf6 Ng3 Bc6 Rh7 Kg8 Qc4+ R8f7 Qe7 d8B Qd6 Rh5 Nh1 Ba5 Bb6 Be1 Bc5 Bf2 Bb6 Bg1 Bc5 Nbd2 Bb6 Rc1 a1Q Nb1 Qa5 Ba4 Qae5 Rc3 Ba5 Ra3 Be1 Ra2 Bf2 Bec6 Ne6 Rf8 Rb7 R8f7 Rb3 Rc7 Ng7+ Rff7 Rf3 Rf5 Rf4 Rf6
1q1NrqNk/2B1R3/P2qP1p1/B1r1RN1N/n3N1B1/K2n1B1b/b2b4/N4Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 a4 b5 d4 f5 Kd2 Kf7 Kc3 c5 Kb2 f4 h4 c4 e4 g6 h6 f3 a6 f2 h7 Kg7 a5 b4 e6 b3 e7 c3+ Ka3 b2 h5 c2 h6+ Kf7 e5 Bd7 a7 Bb5 a6 Bd7 d6 Ba4 e8N Qd7 d5 Bg7 e6+ Kf8 Nf6 Qf7 d7 Qe7+ d6 Qe8 d8N Bb3 d7 Qf7 Ne4 Nf6 Bh3 f1B Nbd2 b1Q Ne2 Ng8 Bg4 Qf3 N2g3 Ba2+ Nb3 Qd3 Bf4 Qd2 Nh5 Bc3 Bc7 Bh3 Qf1+ Nf6 Nf7 Qd4 d8N Nbd7 Nfd6 Bd2 Nf5 Rc8 a8B Ne5 Rh2 Rg8 h8N Nfd7 h7 Nc5 Nhf7 Qd6 h8B Ned3 N7h6 c1Q+ Bb2 Qc4 Bc3 Na4+ Bb4 Rh8 Ng8 Qb5 Rh1 Qb8 Bc6 Qc2 Re1 Qcc5 Na1 Qf2 Neg3 Qf4 Re5 Qh6 Bcf3 Qg7 Bb6 Rc5 Ne4 Qf7 Bc7 Qg7 Nfe7 Qf7 Bba5 Qe8 Nhf6 Kg7 Nh5+ Kh7 Nf5 Qef8 Ngh6 Rg8 Rh2 Kh8 Rf2 Rg7 Ng8 Re7 Rh2 Bc1+ Rb2 Bd2 Rb4 Re8 Rd4 Qde7 Rd7 Qd6 Re7
5N1K/kB2P3/rPBN3p/Rn4Bb/nB3Q2/1r1n3R/1B1r1bBq/2N3qN b - - 0 1 illegal: No possible last move, all moves rejected
RRR5/Q3pB2/N2Rn2r/N2b2R1/nK1n3q/2P1Nrb1/k2RPB1q/2N2b2 b - - 0 1 illegal: No possible last move
6R1/2Pbr3/k1BRn3/1pb2rnr/1R1R1N1B/q5Pn/3q1RRB/QK1N1B2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 h5 c4 d5 Kc2 Kd7 a4 Kc7 f4 e5 c6 b5 f6 e4 f5 h4 g6 d4 f7 e3 f6 e2 a6 Kb6 c7 e1Q a7 h3 c5+ Kb7 g7 h2 c6+ Kb6 a5+ Ka6 Ne2 Bc5 f8B Qf2 f7 Qg3 Ra2 Qgg5 Be7 Rh6 f8R Qd7 Rf2 Qd8 Bf4 Qgd5 Bh4 Q5d6 Nbc3 d3+ Kb1 Nf6 g8R Bh3 c8R d2 c7 Nc6 Be5 Be6 Nf4 Rh5 Rg1 h1N Ra4 Nh7 Rb4 Q8f8 Rd8 Nd4 Qe1 Ng5 Nd1 Rc8 a8B Bd7 Bc6 Nde6 Rg6 Qd5 Bd6 Qe7 Qe5 Rb8 Qa1 Qd4 Rdg8 Rf8 Be5 Rf5 Rd8 Ng7 Rd6 N7e6 Rg8 Qc3 Rdd4 Qd6 Rg6 Qa3 Rf6 Ka7 a6 Kb6 a7 Ka6 Nh3 Qd5 Bh2 Qd6 g3 Qd5 Rfg2 Nf2 Nf4 Nfh3 Rf2 Qd6 Rgg2 Qd5 Nb2 d1R+ Kc2 Kb6 a8R Re1 Rg8 Ka6 Nd1 Ree5 Kb1 Re2 Re4 Qd2 Rec4 Nd4 Rh6 Re7 Rd6 Nde6 Rcd4
N5b1/2B3k1/r2bqR2/B3nn2/K1B1RrpR/2RRP2P/2r1R1NB/nQ3n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 g5 d4 c5 Kd2 f5 Kc3 Kf7 Kb3 a5 b6 f4 h6 f3 e6+ Kg6 b7 g4 h3 f2 b5 c4+ Ka4 c3 d6 c2 h7 Qe7 d5 Kf6 e3 Qf7 b6 Kg7 e7 Qf4+ Bc4 f1R e8R Nc6 b8B Nh6 d7 Be7 d8R Bh4 b7 Kf6 d6 Be1 d7 Bg3 Nc3 Na7 Rh2 Qf3 Nb5 Nc6 Ne2 Ra6 Nf4 Qd5 Ra3 Qe6 Nc7 Nf5 Bd2 c1N Na8 Ne2 Qb1 Kg7 Bc7 Ne5 Ng2 Rf4 b8B Bb7 Rb3 Bd5 Rc3 Rf8 h8R Rg8 Kb5 a4 Rh4 a3 Rf8 a2 Rf6 a1N Re8 Rf8 d8R Rf2 Rd6 Bf4 Rdd8 Neg3 Be1 Rc2 Bd2 Be4 Rdd3 Bd5 Be1 Nf1 Kb4 Rb6+ Ka4 Rd6 Ba5 Ra6 Bc7 Nf7 Bg3 Bd6 Nf4 Ne5 Re2 Qc8 Ng2 Bg8 Bf4 Qe6 Bh2 Nd4 Rfh6 Rf4 Rf6 Nf5 Rd8 Bb4 R8d4 Bd6 Re4
5B1n/2K5/4BR2/p1bB2nq/R1N1b1BQ/1nrb4/PNP1B3/RrBnk2R b - - 0 1 illegal: No possible last move
2R1brB1/b1RRrr2/P6p/b2r1RqR/1Nn2B1B/4P1n1/8/Q1K1RkNB b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 Ke7 d4 c5 Kd2 f5 a4 b5 g6 f4 d6+ Ke6 a6 Kd5 d7 Ke4 d5 c4 g5 h6 g7 f3 a5 b4 e6 f2 d6 b3 a7 b2 e7 Nf6 g8B Kd4 e8R Qe7 d8B Bd7 g6 Nh5 a6 Ng3 g7 Rh7 Nc3 b1R Bg2 f1R Nd5 Rf7 Nb4 Nc6 Ra5 Ne5 Rh5 c3+ Kc2+ Kc4 Bh1 Qg5 Bf4 Be7 Qf1 Rd1 e3+ Rd3 Qa1 Rd5 Kc1 c2 Ra2 Bf6 Rf8 Be8 d7 Be7 Rb2 Bc5 Be7 Rc8 a8R Ba7 d8R Kc3 Rd7 Nc4 Rb8 Rd8 Rbb7 Ra8 Nc6 Kd3 Rbc7 Rb8 Bd8 Re7 Rf5 Rf7 Nh3 Ke2 Ng1+ Kf1 Nb4 Re7 Be6 Rc8 g8R Rhf7 Rh8 Rf8 Bg8 Ref7 Rb7 Rc6 Be7 Re6 Bf6 Ree7 Rbc7 Qg7 Bh4 Qg5 Ra2 Ne5 Kb2+ c1B+ Kb1 Nc4 Re2 Bd2 Kc2+ Be1 Kc1 Bc3 Rh7 Bcd4 Rc8 Bdb6 Rdc7 Ba5 Rg7 Rf6 Rf7 Ree5 Rfe7 R6f7 Red7 Ree7 Re1+
3K1B1b/1BBRRPk1/1pbR3n/N5N1/rPB2n1r/Br1B2Q1/2n1Rq2/3n4 b - - 0 1 illegal: No possible last move
1K3nB1/4P2R/BP4q1/n1R2b2/2p2Rrr/b1B2b2/B2NQBN1/k1nn1R1B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 d4 h5 g4 h4 b4 a4 e6+ Kd6 b6 f6 b5 h3 b7 h2 g6 a3 g5 a2 e7 Qe8 b6 Na6 b8B+ Nc7 g7 Ra5 g6 Rb5 Ba3 Bb7 Nf3 Qd8 e8B Ba6 Bc6 Bc8 Bb4 Bb7 Ne1 Rh3 Nd2 Bc8 Ng2 Ne7 g8B Bg4 g7 Rh4 e3 Ra5 Ba6 Qe8 Qe2 Ra4 Raf1 a1N Rf4 Nb3 Rhf1 h1B Be6 Qh5 g8B Bh3 Bcb7 Nc6 Bef7 Kd7 d6 Ne6 d5 Nca5 Bc7 f5+ Ke5 Qg5 e4 Qg6 Bd8 Rg4 Bh4 Nc1 Bg3 Be7 Bf2 Nf8 Ba8 Kd8 d7 Rh4 Rg4 f4 Be6 f3 Rf4 Bf5 Bef7 Bf6+ Kd6 Bb2+ Be6 Ba3 e5 Qg3 Bef7 Qg6+ e6 Rg4 Ke5 Ke7 d8R Rh4 Rc8 Rg4 Be3 f2 Rc7+ Kd8 d6 Rh4 d7 Ke7 Kd5 Kf6 Kd6 Rg4 d8R Rh4 Re1 f1N Bf2 Ne3 e7 Nd1 Rf1 Rg4 Ba2 Rh4 Ne3 Bf3 Ng2 Rg4 Rcc8 Rh4 Kc7 Rg4 Be4 Ke5 Kb8 Rh4 Bc3+ Rd4 Bb4 c4 Bed5+ Re4 Rc5 Rg4 Bg3 Kd4 Rd6 Rh4 Rf6 Rg4 Rf7 Rh4 Rh7 Rg4 Qe1 Kd3 Bh4 Kc2 Bf2 Kb2 Qe2 Ka1 Bc6 Rh4 Bcb7 Rd4 Ne1 Bh5 Bh1 Bf3 Ng2 B5e4 Rf6 Bf5 Rff7 Rdg4 Rf6 Bc8 Rf4 Bf5 Bc3+
5bq1/1R3bRB/1n4R1/2RPkp1N/5rnb/P3q2r/R2R1B1Q/2B1NBKb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 d4 f5 e4 b5 h4 c5 e6+ Kd6 e7 g5 e8R g4 a3 c4 a6 c3 h6 c2 h5 b4 h7 b3 e5+ Kc7 a7 b2 h6 Na6 e6 Kd6 e7 Qa5 Nh3 g3+ Kg1 g2 Qe2 Qc5 Nd2 b1B Ra2 Qb4 Nf4 Qa5 Nh5 Qc5 Nf3 Bd7 Rb8 Nb4 e8B Qb5 Bg6 Bc6 Rb7 Qb6 Ne1 Rb8 a8R Nf6 Ra5 Qa7 Rc5 Ng4 Rh3 Re8 Rg3 Re4 Qf2 Rf4 Qd2 Rg8 h8B Be8 h7 Bf7 Bf6 Rh8 Bd8 Qa8 Bb6 Qe8 Ba7 Qe3+ Qf2 Nc6 Bb6 Nce5 Ba7 Nd7 Bb6 Ke7 d6+ Ke6 Ba7 Nb6 d7 Kd6 d8R+ Ke6 d5+ Ke5 Rdd7 Bd6 Bd2 c1B Rdc7 Bb2 Bc1 Bf8 R7c6 Be4 Rd6 Rg8 h8R Bc3 Rh7 Rh8 Rg7 Bb4 Rf3 Be7 Rdc6 Bh4 Rg3 Rh6 Bh7 Bf3 Rcc2 Bf8 R6c5 Bd8 Nf6 Rh3 Nh5 Bh4 Rd2 Nh6 R7g4 Na4 Rc8 Qe2 Be3 Be4 Rc5 Nb6 Rg8 Qg4 Qe2 Qg7 Rg6 Ng4 Qf2 Qh8 R8g7 Qg8 Qf3 Nh6 Qg3 Bf3 Kf2 Be4+ Ke2 g1Q Qh2 Qg3 Bf2 Qb3 Bg2 Qe3+ Kf1 Ng4 Kg1 Bf3 Bf1 Be4 Bc4 Bh1 Bf1
1B2b3/3N3q/rRnRP3/2R3qk/1B1r4/1n1bbQ1K/1pRBBPRb/N5R1 b - - 0 1 illegal: No proof kernel
2bB2Q1/6B1/BbB1Prb1/1Pbq3R/1qB1kp2/5n1B/1R2K1nr/2RN1R1N b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 a5 d4 f5 g4 c5 b6 h5 d6+ Ke6 d7 a4 g6 c4 g5 h4 b7 f4 g7 a3 g6 h3 d5+ Ke7 d6+ Ke6 Ne2 a2 Nbc3 h2 Qb3 Na6 b8R Qg5 d8R Nc7 d7 Qg2 Bb2 Rh6 Rc1 a1Q Nd1 Qa4 Ng3 Nd5 Bd3 c3 Rf1 h1B Ba6 Nf6 g8B+ Ke7 b5 c2 e6 Kd6 e7 Nh7 e8B Ng5 g7 Rf6 Be6 Ne3 g8B Qb4+ Bc3 Kc5 e5 Qd5 Bh3 Be4 Nh1 Nf3+ Ke2 Ng2 Bgf7 Bg6 Qa2 Qb7 Bc4 Qd5 Rb6 Rb8 Re6 Rb6 Re7 Rbe6 Rh7 Re7 Rh5 Rh7 e6 Bd6 Ba1 Bc7 Qb2 Bb6 Qe5 Rh8 Qb8 Rh6 Nb2 Kd4 Nd1+ Ke4 Be5 Rf8 Bg7 Rf6 Qa8 Bb7 Rc8 Rh8 Rc5 Bc8 d8B Rh7 Rb1 c1B Bc6 Be3 Rb2 Rh6 Bb3 Rh8 Rc1 Bec5 Bc4 Nd2 Rg5 Rh4 Rh5 Nf3 Bg4 Rh2 Bh3 Rf8 Qa7 Rf5 Qf7 Rf6 Qg8
n2RNr2/Bq1n1q1p/2kBR2R/1P1N2r1/1RB2R2/nQ2KPb1/3Bn1b1/6R1 b - - 0 1 illegal: No possible last move, all moves rejected
1nb5/2r1prB1/3bN1KB/1nR5/R1q1RqR1/1B3BPN/B1kn1P2/4B1nQ b - - 0 1 illegal: No possible last move
1N1Q1rBk/1B1P1r2/n7/qB4P1/R4B1q/Rn1bK3/2NpRnB1/RnB1b3 b - - 0 1 illegal: No proof kernel
nrNR3n/1P5R/2Pqb1NK/r1RN3B/1R1Q3p/4R3/b3R2b/k1BbqN2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kg3 Ke6 Kg4 a5 Kh5 d5 b4 f5 g4 d4 c4 h6 e4 a4 g6 f4 b6 d3 b7 a3 b5 f3 c6 a2 b6 f2 g5 d2 g7 Qf6 c5 Qd8 c7 Bd6 c6 Bd7 c8N Rh7 g6 Qe7 Be2 f1B Nh3 Na6 b8R Qf8 b7 Ne7 g8R Bc5 g7 Bg1 Nf4+ Kf7 e6+ Kf6 Ng6 Nc7 e5+ Kf5 Rh4 Rh8 Rb4 Ra5 Ra8 Qf6 Rd8 Bh2 g8N Qf8 Qa4 d1B Nf6 Bh3 Ra6 Na8 Nd2 Bf1 Rab1 a1Q Nd5 Qf6 Bf3 Bc4 Nf1 Ba2 Rh4 Qc3 Qd4 Qe1 Rb4 Rf8 Rab6 Rg8 R6b5 Rf8 Nh8 Ng6 e7 Qd6 e8R Be6 Rc5 Rg8 Nf7 Nh8 Rh3 Bd7 e6 Rf8 e7 Be6 Ne5 Rg8 Ng6 Rf8 Rg3 Rg8 Kh4 h5 Rd7 Rf8 Red8 Rg8 e8R Rf8 Qc4 Rg8 Rh7 Rf8 Nge7+ Ke5 Kg5 h4 Bh5 Rg8+ Kh6 Rf8 Rbb3 Rg8 Qb4 Rf8 Qb6 Kd4 Rge3 Rg8 Re2 Rf8 Rb4+ Kd3 Rcb5 Rg8 Re3+ Kc2 Qd4 Rf8 Ng6 Rg8 Bb2 Kb1 Rc5 Rf8 Qc4 Rg8 Bc1+ Ka1 Qd4+ Qc3 Re2 Rf8 Na7 Bh3 R8e3 Be6 Rdd7 Rc8 Rd8 Rb8 Qf4 Qd2 Nc8 Qe1 Qd4+
k1bR2N1/nnpRR1n1/B5n1/q1N4r/1B1N3P/n1P2R2/2RR1N1n/Q3b1K1 b - - 0 1 legal: proof: f4 e5 d4 h5 dxe5 b5 g4 b4 gxh5 b3 e6 Nf6 axb3 Bc5 b4 Ng8 b5 Bf8 Kd2 Ke7 Ke1 Kf6 e7 Ke6 e4 Nf6 e5 Ng8 Be3 a5 Bc1 Kf5 e6 Kf6 Qd6 Ra6 Qd1 Ra7 Bg2 Ra6 Qf3 Rc6 Qf1 Rc5 Qe2 Re5 fxe5+ Kf5 Kd2 Kf4 Bf1 Kf5 Qd1 Ke4 Bd3+ Kd4 Ke1 Kd5 Bf1+ Kc5 Kf2 Kb6 e8R Ka7 b4 g5 h4 f5 b6+ Kb7 h6 d5 b5 g4 e7 f4 h7 f3 e6 d4 Ra2 d3 Bd2 a4 Nc3 a3 Rh2 Na6 Nce2 Nh6 Nh3 g3+ Kg1 g2 Nf2 Nf5 Bb4 d2 Qa1 d1N Nd4 Qd5 Rd8 Ng7 e8R Nc3 e7 Ka8 Rd7 Nc5 Rb2 a2 b7+ Ka7 b8R Nb7 Red8 Qf5 e8R Qe5 Ba3 Bb4 Ree7 Ba5 Bb4 Qg5 Rh3 Qd2 Kh2 g1N Kh1 Nge2 b6+ Ka6 Kh2 Nb5 Kh1 Nf4 Kg1 Ng6 Rh2 Rf8 h8N Rf5 Nf7 Rh5 Nh6 Qe1 Ng8 Qc3 Nd3 Na7 Rd2 Qa3 Rb3 Qa4 Nf2+ Qb5 Ba3 Bb4 Rbd3 Qa5 Ra8 Bc3 Bb4 Nd6 b7 Qa3 b8N+ Kb7 Qb2 a1N Ne4 Nab5 Rh2 Be1 c3 Nc2 Rhd2 Qa6 Qa1 f2+ Kg2 Qb6 Ra2 Qa5 Rf3 Nca3 Na6 Na7 Nac5+ Ka8 Rac2 Nb7 Ba6 f1N Kg1 Nh2 Nf2
q2r1r2/4Q3/2NB1PRB/3PB3/p1KNnn2/BRb2p1b/1Nb3Nk/1B4nB b - - 0 1 illegal: No proof kernel
B1NRR3/5N2/1P1rpPK1/3Q4/RqR1r2B/b1nrNR2/pnb5/1b1k1N1R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 d4+ Kb4 g4 a5 f4 h5 d6 c5 b6 h4 d7 c4 g6 c3 d5 a4 g5 a3 b7 h3 g7 h2 g6 c2 d6 Kb3 f6 Nc6 Kf5 Rh4 b8R+ Nb4 f7 Ra7 Nd2+ Ka4 Ngf3 Qc7 Ne5 Nd5 b4 Qb7 b5 Rh3 b6 Ra8 Ng4 Nc3 Bg2 Rd3 Nf1 Kb3 Nge3 Nf6 g8R Nh5 g7 Ra4 Kg6 Qe4+ f5 Qb4 d8R e6 f6 Ba6 d7 a2 Ra8 Bc5 f8R Rd6 Be4 Bd3 Rfe8 Ra3 Qf3 Ra4 Bd2 c1R Be1 Rd1 Rc1 Bc2 Bh4 R1d3 Ra5 Bb1 Ba8 Kb2 Qd5 Nf4+ Kg5 Bc2 Rh8 Bb1 g8N Bc2 Ne7 Bb1 Rg1 h1B Nc8 Be4 Rg3 Bf5 Rf3 Bc2 Nh2 Bg6 Rh1 Bb1 Nhf1 Kc1 Nf5 Kd1 Kh6 Ra3 Ra4 Rd4 Kg7 Nd3 Rh5 Nb2 N5e3+ Kc1 Rg5 Bgc2 Rg4 Re4 Rgf4 Ne2 Kg6 Rd3 Rg4 Nc3 Rgf4 Re5 Rc4 Re4 Bg5 Qb5 Bh4 Ba3 Rf8 Qb4 Rde8 Rf4 d8N Rfd4 Nf7 Re4 Ng4 Kd1 Rd8 Rd2 Rfe8 Rd3 Nge3+
1b1n1NRB/1b6/Pr3bQN/BN1n1n1P/K2B2q1/1r1p1k2/pB4B1/1N1RB3 b - - 0 1 illegal: No proof kernel
n2N1R1K/3R3P/2p2P1k/Q2BB3/2R1B3/1nr2b1q/2bpBB1b/n1RNrB2 b - - 0 1 illegal: No proof kernel
NR2N1qn/3p1k1N/3K4/1N1nB1r1/P3b1B1/1N2rrRB/N1bBpP2/1Q4b1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 b5 Kc3 e5 Kb4 g5 h4 e4 c4 e3 a4 e2 a6 g4 f6 g3 h6 g2 a7 Bb7 f7+ Ke7 h5 Qe8 c6 Bg7 Kc5 b4 f8N b3 c7 b2 c8N+ Kf7 h7 Bc6 h6 Bd4+ Kd6 Be4 c5 Bf5 c6 Qe4 c7 Kf6 Rh3 Ne7 Rg3 Nd5 Bd2 Nf4 Nc3 b1B Nf3 g1R Bh3 Bg4 Na2 Bd3 Rb1 Nc6 Rb8 Qe8 Qb1 Nd5 Nb6 Be4 c8N Bc3 Nd4 Kf7 Nb3 Bgf5 Bg4 Rg8 h8B Nce7 h7 Rg5 Be5 Ng6 Bh3 Bc2 Bg4 Bfe4 h8N+ Kg8 Nf7 Nh8 Nh7 Rh1 Kc5 Rh3 Nfd6 Ba5 Nb5 Kf7 Kd6 Qg8 Ne7 Bc3 Nf5 Ba1 Ng7 Bd4 Rg1 Rf3 Ne8 Be3 Rg3 Bf4 Rd8 Rc8 a8B Rcc3 Rb8 Rce3 Bc6 Bed3 Na8 Be4 Rg2 Bh2 Rg3 Bg1 Bb7 Nf4 Bh3 Bg6 Be4 Nd5 Bef5 Be4 Bfg4 Bc2 Nbc7 Bge4 Nb5
2r1R1Q1/1B2N1q1/n6R/3p2nR/nrPPRKpb/3kR3/4N3/NN1qR1Bb b - - 0 1 illegal: No possible last move, all moves rejected
7R/1n1b1N1b/1BNr3p/1K1p2B1/1NB1k1Bq/2Pr1nqP/R1n5/1Q1N1N1N b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 f5 d4 e5 dxc5 Be7 g3 Bg5 fxe5 f4 Bd2 f3 Bc1 Bf4 gxf4 Kf7 Ra6 Kf8 Ra1 Ke8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 e4+ Ke6 f5+ Ke7 c6 d5 f6+ Ke6 c3 g5 b6 a5+ Kb5 f2 b4 a4 f7 a3 f8B g4 c7 g3 b7 a2 Ne2 g2 Nd2 g1N Ng3 Ne2 Bc5 Nd7 b8N Qf8 Nc6 Rb8+ Bb6 Ng1 Bc4 Qh6 Ndf1 Ra8 Bg5 Qg7 Qb1 Kf7 e6+ Kg6 e7 Qf6 e8N Nh6 e5+ Nf5 e6 Nf3 e7 Ra6 Nd6 Nc5 e8N Bd7 c8B Nb7 Nde4 Ne3 N8d6 Nc2 Nf7 Rf8 h3 h6 Rg1 Qf4 Nh1 Kf5 Rg4 Qg3 Rf4+ Kg6 Rf5 Qh4 Re5 Rg8 Re8 Kf5 Rd8 Rg6 Rh8 Qg3 Nc5 Rg8 Nd3 Ke4 Nb2 Rg6 Nd1 Rd6 Qb3 Ra4 Qb2 Be8 Bg4 Bd7 Nfe3 f1B Qb1 Bd3 Nf1 Nd8 Kc5 Qh4 b5 Qg3 Bb3 Rd4 Nb4 Qh4 Bc4 Qg3 Ba5 Qh4 b6 Qg3 b7 Qh4 b8N Qg3 N8c6 Nb7+ Kb5 Qh4 Qb2 Qg3 Rc1 a1Q Bb6 Qa8 Be6 Qd8 Ra1 Qf6 Ra7 Qff4 Qb1 Qfh4 Ra3 Qh2 Na6 Q2g3 Bgd8 Kf4 Bg4 Bh7 Bg5+ Ke4 Nb4 Rd3 Ra2
qQ3B1N/1Nr3q1/3n1p1p/3BP2R/2Rk4/rR2RRn1/2P1B1bK/q1b1B2R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kg3 Ke6 e4 a5 b4 d5 g6 f6 b6 a4 c6 h6 b5 a3 b7 d4 c7 a2 b6 d3 g7 d2 Na3 Ne7 g8R Bg7 Kh2 Nf5 g4 Bd7 c8R Rh7 g5 Na6 b8B Bf8 g6 Bb4 b7 Be8 g7 Qd4 Nb5 Bf8 Ba3 Ne3 Be2 Qa7 Qb1 d1Q Nd6 Qb6 Nh3 Nc5 Ng5+ Kd7 e6+ Ke7 Ngf7 Qa6 Nh8 Bc6 Ba7 Qe1 b8R Qaa5 Rb3 Nf5 Nb7 Ng3 Bb6 Qa7 Ba5 Qc1 Bc3 Qg5 Be1 Qb8 Bab4 Ra3 Rf1 Qg6 Rff3 Qa8 Qb2 Qg4 Qe5 Qg5 Qb8 Qg4 Rd1 a1Q Rd5 Qg6 Rh5 Bd5 Nd6 Nb7 Rc4 Nd8 Bc5 Nf7 Nb7+ Nd6 Qa7 Ke8 e7 Kd7 e8R Kc6 Qb8 Qg4 Re6 Be7 Re8 Qg5 g8B Qg7 Ree5 Bf8 Ref5 Be7 Rfe3 Bf8 e5 Bg2 Rff3 Be7 Rch4 Bf8 Re6 Kd5 Bcb4 Be7 Rh3 Bf8 Re7+ Kd4 Rc7 Qg5 Rcc3 Rc7 Bd5 Qg7 R3h4+ Nde4 Rc6 Bc5 Rh3 Ba7 Bf8 Nd6 Rf1 Bc5 Rh1 Bb4 Rf3 Bd2 Rcc3 Bc1 Rfe3 Nge4 Rhf3 Ng3 Rc4+
Br2N1n1/1QBk1b1N/1P1Rpq2/1B4b1/2KRP1nb/1rp5/B1N1B1q1/N6B b - - 0 1 illegal: No possible last move, all moves rejected
6nr/5b2/rb1RqRR1/kB2BPRB/NP1p3N/2r4p/4r1R1/K1RnB2Q b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 e5 c4 h5 Kc2 a5 g4 d5 f4 Kd7 f6 Kc7 c6 Kb6 g6 a4 c7 a3 c5+ Ka5 b6 a2 g7 h4 g5 h3 f7 e4 c6 e3 b7 d4 g6 e2 Rh2 e1R Bb5 Ne7 g8R Nd5 g7 Rh6 Rg2 Kb6 Bd2 Rf6 Nf3 Re5 Qh1 Bd6 f8R Bg4 c8B Nc7 Be1 Re8 Nh4 Nd7 b8B Be6 Nc3 Bc5 Rc1 Nd5 c7 Ka5 Na4+ Nc3 f5 a1R Bca6 Ba7 c8R Ra3 Rc6 Qe7 Be5 Bf7 Rd6 Qe6 Bb7 Rad8 Bf3 Bb6 Bh5 Ra8 Rg5 Rh6 Rg6 Ra6 Rg5 Rh8 Rg2 Bg6 Rf6 Bf7 Rg5 Rb3 Rgg6 Rb4 Rg2 Nd1 Kb1 Re7 Ka1 Re8 Rfg6 Nf6 Rf8 Re7 g8R Re8 Rc3 Rc4 Rc1+ Rc3 R8g7 Ng8 R6g5 Bg6 Rf6 Bf7 R7g6 Qc4 Bf4 Re2 Be5 Qe6 b4+
2B1B3/rRbN1BKn/PP5R/2Bn1q2/2N2Q2/1Rp1p2B/3b2Rr/k1bb1B2 b - - 0 1 illegal: No proof kernel
R3R3/pK2nr1N/rB1Pr1r1/R1R2RN1/1b3n1p/q3P1RN/b1B5/1k1NQ3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kf3 h5 Ke4 c5 b4 f6 g4 c4 d4 h4 e6+ Kd6 e7 c3 e8R c2 b6 Na6 b5 Nb8 b7 Nd7 b8R Be7 b6 Nf8 g6 Rh5 b7 Qc7 g5 Nh6 g7 Qc5 g8N Qc7 g6 Rf5 g7 Bd7 Be3 c1R Nc3 Rb1 Ra5 Qc5 Qe1 Ng6 Rbc8 Rf3 b8R Rg3 Nh3 Ra1 Nd1 Qa3 Rcc5 Nf5 Rh2 Rg1 Rf2 Nf4 Rb3 Rg4 Nh6 Be6 g8N Rg6 Nf7+ Kd7 Nfg5 Kd6 Rd3 Rc8 Bg2 Rc6 Rf1 Ra6 Bf2 Bf8 Rg3 Ne7 Bf3 Rb1 Bg4 Rbb6 Bf5 Kd7 d6 Rc6 Bg4 f5+ Ke5 Ba2 d5 Nh5 Bf3 f4 Be4 f3 Bc2 Nf4 Bd4 f2 e3 Rab6 Rc3 Ra6 Bb6 Qa4 Rcc5 Qa3 Rh1 f1R Rhg1 Rf2 Rf1 Ne2 Ke4 Rf7 Rf5 Nf4 Kd4 Bb1 Kc4 Ba2+ Kb5 Bg7 Bc7 Bc3 Bd8 Bb4 Nf6+ Kc8 d7+ Kb7 Bb6 Re6 d8R Rc6 Rc3 Re6 Bc5 Kc7 Ra8 Kb7 Nfh7 Kc7 Bb6+ Kd6 Rf6 Ke5 d6 Kd5 Nf3 Nd3 Rf5+ Ke4 Ba4 Nf4 Rcc5 Kd3 Nfg5 Nc8 Kc6 Ne7+ Kb7 Rg8 Qg1 Rgg6 Qf1+ Kd2 Bc2 Kc1 Ba4+ Kb1 Qe1 Ng2 Bb3 Nf4 Bc2+
n1K2n2/1B4q1/B1B1rk1p/1N3N2/qbPNNRn1/Nq2pN2/Q2BP3/3Rr3 b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 Bg7 g4 Qb6 g6 Bb7 h3 Bf3 g5 Bg4 hxg4 Qd8 Qd3 Bh6 Qd1 Bf8 Kd2 d5 Kc3 a5 Kd4 f5 Ke5 e6 b4 Ke7 c4 d4 b6 d3 c6 f4 c7 d2 c8B f3 g7 h6 b5 f2 b7 a4 g6 a3 g5 a2 b6 Ra3 Rh4 Rf3 Rf4 Rg3 Qb3 d1N Bd2 Nc3 Nf3 Qe8 Na3 Nf6 g8B Na6 b8N Nd1 g7 Nd5 b7 N1c3 g6 Nd1 Bg2 Nc5 Na6 f1Q b8N N1e3 Nc7 Nb6 Ba6 Na8 Rd1 Qa4 Ncb5 a1Q+ Qb2 Qb1 Qa2 Qbb3 Bh7 Qg1 g8N+ Kd8 Kf6 e5 g7 e4 Ne7 Ne6 Nf5 Bb4 g8N Nf8 Nc6+ Ke8 Ke5 Kf7 Nf6 Ng4+ Kd5 e3 Ne4 Rg8 Ncd4 Rg6 Bh1 Re6 Bg2 Re5+ Kc6 Re6+ Kb7 Rh3 Kc8 Rh1 Bf1 Qg3 Bg2 Re1 Bh1 Nf6 Bg2 Qg7 Bh1 Ng4 Bg6+ Kg8 Be8 Kh7 Bd7 Kg6 Bc6 Qh8 Bcb7 Qe5 Nh2 Rf1 Nec3 Re1 Bhc6 Qg7 Nhf3 Kf6 Ne4+
2KRRQq1/R1p1bpq1/2nN2RN/Prr1R1n1/3N1P1B/r5R1/B2kq1N1/8 b - - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 d4 b6 e4 Qd6 e5 Qd8 d6 Kd7 e6+ Kc6 Ba6 Kd5 Bf1 Bd7 exd7 Ke6 d5+ Kf6 Kd2 Kf5 Kd3 e5 Kc4 Ke4 Kb5 g5 h4 g4 a4 g3 a6 g2 a5 Rh7 a7 Be7 h6 Qf8 d8R Rh8 h7 Na6 Kc6 b5 Kb7 b4 d7 b3 d6 b2 h5 Qg7 h6 Qg6 Ra3 Nb4 Bc4 Nd3 Nh3 g1R Bg5 Kd4 f4 Ke3 Re8 e4 d8R Qe6 d7 Bd6 Nd2 b1Q+ Nb3 Ne1 Bh4 Ne7 Nf2 Rf1 Rg1 Rg8 h8N Nf3 h7 Re1 Rg6 Qa1 Nd4+ Qc3 Ba2 Nc6 Qc2 Qh3 Re5 Qg3 Qb1 Rc1 Qb4 Bc5 Ng4+ Kd2 Nh6 e3 Rb3 Rc8 a8R e2 Ra7 e1Q Rde8 Ra1 d8N Ng5 Qa3 Be7 Qc5 Bf6 Qf8 Qe2 Ra3 Be7 Rb3 Ra8 Ra3 Nb8 Kc8 Rc1 Nb7 Nc6+ Kd7 Qgg2 Nd6 Rb8 Rd8 Qb2 Rg3 Rb5 Kc8 Rc4 Rge6 Ra4 Ng6 Ra3 h8R Rg7 Re8 Rh7 Ng8 Rh5 Nh6 Qc2 Rg8 Qf5 Rh8 Qf6 Rg8 Qg7 Rd8 Bf6 Ree8 Be7 Rc3 Nf3 Bf6 Qh7 Re4 Rb2 Nh4 Rc5 Re5 Rbb5 Bg5 Qg3 Ng2 Qh8 Rg7 Qg8 Bh4 Qg6 Rb3 Ng5 Rg3 Qf6 Rg6 Qfh8 Rge3 Qhg7 Rg3
2R3B1/QkNKp2p/8/BnBN2N1/r1b1qN2/N2PB2P/2qN2q1/2b1nRb1 b - - 0 1 illegal: No possible last move
4n1NR/1RB2rQ1/Rr1nK1b1/P1R1B3/1pr2N2/b3B3/qp1PBp2/k3B1B1 b - - 0 1 illegal: Other
2RNr2q/R1B1k3/3r1Npn/rp1N1pbN/1Q1N2N1/3R4/R1PP3K/1n3B1b b - - 0 1 illegal: No proof kernel
k4BRB/NpQ1K3/r1R1b3/1p1r1qN1/1PpbB2P/1r1BN3/2n4B/n4BN1 b - - 0 1 illegal: Other
R3r2R/pQ1n2p1/r2bR2B/N3RBR1/B4N1q/1np1b1PB/k4PRK/1r6 b - - 0 1 illegal: No proof kernel
NKRR2bq/1N2n1qp/2RnBP2/RN2r1kR/Q2p3R/1P1p2B1/3b2N1/3r4 b - - 0 1 illegal: Other
BB2BqNN/npk1r3/4Q2b/pP2r1p1/6nR/1R2n1P1/r1B2N1N/N3KN2 b - - 1 2 illegal: No possible last move
2b1r1Rq/3n1kQp/2B2NR1/bN1bPK1N/4RRrP/p2R2N1/4p3/r1R1B3 b - - 0 1 illegal: No proof kernel
Br2qb1K/4kpQ1/2p1bNRN/1N1R4/2P3R1/1qrRB1Nq/P3N1Np/2n5 b - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 a5 fxg5 a4 h4 a3 bxa3 Ne7 a4 Ng8 a5 Bg7 Nc3 Bh6 Nb1 Bf8 g4 Bh6 g6 Bg7 h5 Bf8 g5 Nc6 h6 Nce7 Nh3 Nf5 Ng1 Ng7 hxg7 Qe7 Bf4 Qf6 Bc1 Qd8 Kf2 h5 Ke3 d5 Kf4 b5 e4 d4 c4 h4 a6 d3 e6 b4 Ke5 b3 e7 d2 a7 h3 Bg2 b2 Ne2 h2 Nf4 Be6 Qg1 d1Q Nc3 b1Q Be3 Bg4 Nce2 Rb8 a8N Nf6 g8N Rh4 g7 Qb6 g6 Qc6 Nh6 Rc8 g8R Qcd7 g7 Q1a4 Rd1 Rb8 Rd3 Rb4 Qa1 Rh3 Rhd1 Nd5 Qd4 Nc3 Kf6 Qdb5 e5 Bd7 Bb7 c6 Ng2 Rh5 Nf5 Qc8 Nfg3 Bf5 Qg4 Qd5 Nc7+ Kd7 e8N Qa3 e6+ Kd8 e7+ Kd7 Nb5 Rh4 Ba8 Rh3 Ned6 Qc5 e8N Be6 Ndf5+ Qd6 Nh6 Qb3 Rd5 Kd8 R1d3 Qdd7 Rh8 Qb8 g8R Qc8 Rg6 Qb8 Ned4 Ne2 Rhg8 Nc1 Nde2 Qc8 Qd4 Qb8 Rg4 Qc8 R8g6 Qb8 Kg5 Ke7 Qg7 Qbd8 Nf6 Q8e8 Na7 Rb7 Nb5 Rb8 Rd1 Rb6 Nhf5+ Kd8 Bc5 Qa4 Re4 Rh4 Nh1 Qd6 Rg4 Rh3 R1d4 Rf3 Kh6 Rb8 Kh7 Re3 Nh6 Ke7 Bb6 Qg3 Kh8 Rc3 Rd3 Qh3 Nhg3 Qb3 Be3
b1b1r1R1/1QBPNR2/1R1bR2p/r1N1p1R1/2n3BP/3Br2R/2p3K1/2k2Bn1 b - - 0 1 legal: proof: e4 d5 f4 b5 c4 g5 cxd5 b4 fxg5 b3 axb3 Bh3 b4 Be6 b5 Bc8 d4 c6 e5 Bg7 d6 Kf8 d5 Qd7 e6 Bh6 exd7 Kg7 Qe2 Kg6 Qd1 Bf8 Kf2 Kf5 d8R Ke4 b4 a5 g4 f5 h4 c5 g6 h6 b6 c4 b7 f4 b5 a4 g7 a3 g5 e6 b6 f3 g6 c3 d7 c2 d6 a2 Re8 Na6 d8R Be7 b8R Nb4 d7 Na6 b7 Ba3 Nh3 Nb4 Nf4 Ra4 Nd2+ Kd4 Rh3 Kc3 Nb3 Ra6 Qd5 Rd6 Nc5 Nf6 g8B Nc6 g7 Nd4 Ng6 Ne2 Ne7 Ng1 Bf4 Kb2 Bh7 Ng4+ Kg3 f2 g8B Ne5 Kg2 Rb6 Bhd3 Nc4 Bc7 e5 Be6 Rb3 Bg4 Bb4 Rc1 a1R Ra8 Ra4 b8R Ra5 Rb6 Ba3 Rf8 Bb4 Rf5 Re8 Qb7 Rba3 Ra1 Rc3 Ra4 Kc1 Raa6 Rb3 Rg5 Ba3 Ne6 Bd6 Nc5 Ra3 Bdf5 Re3 B5d3 Nb2 Rf4 Nc4 Rff5 Ne2 Rf7 Ng1 Bfe2 f1B+ Kh1 Rh8 Rdg8 Bg2+ Kh2 Bf3 Bf1 Bd5 R8g7 Re8 Rg8 Rf3 Kg2 Be4 Qa7 Ba8 Qb7 Re3 Ne4 Bb4 Nc5 Ba3 Re6 Bb4 Rab6 Ba3 Ne4 Bd6 Nc5
RBB4R/Rqp1Q3/1r6/1npk1KR1/3r1p1B/2p2PqR/N1PNbR2/1B1b4 b - - 0 2 illegal: Other
b1k5/p7/PB1nK2B/2rRQ1p1/2BBNq1b/1nr1RRR1/brp1R1PR/5N2 b - - 0 1 illegal: No proof kernel
1B2Rrn1/3N1rN1/p3pB2/P1b1K2p/1NBn1B2/2r2NBB/5RqP/kb2Q1q1 b - - 0 1 legal: proof: e4 d5 exd5 c5 g4 f5 gxf5 Qd6 b4 Qd7 bxc5 Qd8 Ke2 Kd7 Kd3 h5 Ke4 g5 c4 b5 d4 g4 f4 a6 a4 g3 f6 b4 f7 b3 a5 b2 c6+ Kd6 c7 g2 f5 Nh6 c5+ Kd7 d6 Kc6 f6 Qe8 d7 Ra7 d8N+ Kd7 d5 Ra8 c6+ Kd6 Bf4+ Kc5 d6 Kb4 d7 Ng4 Nf3 g1R Ra2 Bb7 c8B Ra7 Bc4 Rg3 Nc3 Ba8 Re1 Nh6 Nd5+ Kc5 c7 b1Q+ Ke5 Rg4 Nb4 Rg3 Rf2 Be4 Re3 Ng8 Qe1 Qa2 Ree2 Bb1 Re4 Bh6 f8B Qg6 f7 Rh3 Bg7 Qg1 Bf6 Bf8 Bh4 Qe2 Bhg3 Qef1 Ree2 Qfg2 Re4 Bh6 f8B Nc6+ Kf5 Nd4+ Ke5 Bg5 Bg7 Rb7 Bf6 Bh6 Be6 Kb5 Bc4+ Ka4 Ne6 Ka3 d8B Bf8 Ng7 Ra7 Bf5 Rb7 c8N e6 Bc7 Be7 Nb6 Bc5 Bb8 Re7 Nd7 Rf7 Nd2 Kb2 Nf3+ Ka1 Re3 Nh6 Rb3 Rhf8 Rd3 Ne2 Rd6 Ng8 Rc6 Nd4 Rc8 Q1h1 Re8 Qgg1 Bgh4 Rg3 Bh3 Qhg2 Ng5 Rf3 Bhg3 Rc3 Nf3
1B5R/PqB4n/b4B1N/1Q1pnB2/Kbb3n1/1N1P4/1kBB2BR/B2b1n2 b - - 0 1 illegal: No possible last move
Q1R4K/NB2k3/bnp2BqP/3R2BB/1b1rbBN1/BnBn4/1BPb4/2b5 b - - 0 1 illegal: No possible last move, all moves rejected
b1q1Q3/r1r4R/P2pnn1b/7N/3NBN2/1pN1k1N1/1PnNN2B/n1R3NK b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 d4 a4 dxc5 a3 Nxa3 Ra4 Nb5 Ra8 Na7 Rh6 Kd2 Rh7 Ke1 Rh8 c4 Kf7 f4 Kf6 Kf2 g5 Kg2 e5 a4 b5 h4 e4 a5 b4 a6 g4 h6 b3 h5 e3 h7 g3 h6 d6 c6 e2 c5 Be6 c7 Qe7 c8N Bf7 c6 Bh5 c7 Bg7 Qe1 Qd7 Ne7 Qc8 Nb5 Qf8 c8N Qe8 Nc3 Qf8 Nb6 Nd7 Nc4 Qb8 Nd2 Kf7 f6 Ke6 f7 Ngf6 f8N+ Kf7 f5 Bg4 Nfg6 Rf8 h8N+ Ke8 h7 Qc8 Nf4 Bh5 Nhg6 Rf7 h8N Ra7 Rb1 Bg4 Rh7 Bh6 Nh5 Nc5 Kh1 Kd7 Ngf4 Bf3+ Bg2 Ne6 Nhg6 Ba8 Be4 Kc7 Ra1 Kb6 Rb1 Kc5 Ra1 Nd5 f6 Kd4 Rb1 Rg7 f7 Ke3 f8N Nf6 Ra1 Nd4 N8e6 Nc2 Rb1 Na1 Nd4 Rf7 Qd1 e1N Nfe2 Rc7 Ngf4 Nec2 Qf1 Ra7 Qh3 Rc7 Qd7 Ra7 Qe8 g2+ Kh2 Kf2 Nef5 Rfc7 Nfg3 Ke3 Ngf3 g1N Kh1 Nh3 Nfg1 Kf2 N2f3 Ng5 Bd2 Qe6 Rc1 Qc8 Be1+ Ke3 Nd2 Ne6 Bb7 Nb4 Nge4 Re7 Bg3 Rg7 Bh2 Rc7 N4g3 Nbc2 Be4
4rB1N/1p2Q1PN/N2n2rb/2q1NB1R/5kNN/rP1K1N2/Rp1N3b/3n2r1 b - - 0 1 illegal: Other
2NB3B/rp4P1/1KN1RBpB/Q1R2qp1/1Bbn1P2/bBnB1qBr/3k4/8 b - - 0 1 illegal: Other
2b3qB/1p1Bn2n/nP1N1pp1/2b2N2/N2q2N1/R1NQ4/NK1R1P2/r1N1k2N b - - 1 2 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 h4 c4 h3 gxh3 Ra7 h4 Ra6 h5 Rah6 Kd2 Rb6 Ke1 Rb5 cxb5 Bd6 Qd4 Be7 Qd1 Bf8 Kd2 Ke7 Kc2 Ke6 h4 Kf5 a4 Ke4 h6 d5 e6 c5 e7 d4 e8N d3+ Kb2 c4 a6 d2 a7 g6 a8N Qg5 h5 Qe5+ Nc3+ Kf4 e4 Be7 h7 Nc6 a5 Qg5 h6 Bf5 a6 Nd4 e5 Nc6 e6 Bg4 a7 Nb4 Nge2+ Kf3 Nb6 Qf6 a8N Bd8 e7 Qg7 Nd6 Nd5 e8N Qd4 Ra3 Qg7 Nf5 Bg5 Nf6 Nc7 Nbd5 Na6 Bh3 Bf4 Nb4 Bg3 Nb6 Bf4 Nh5 Qd4 Nhg3 Ne7 Na2 Bd6 Na4 Bc5 b6 Ra8 h8N f6 h7 Ra7 Nf7 Ra8 Qf1 d1Q h8N Qb3+ Ka1 Ra7 N7h6 Ra8 N8f7 Ra7 N5d6 Bc8 Ng4 Ra8 Nfh6 Ra7 Bb2 Ra8 Nec1 Ra7 Nce4 c3 Nhf5 c2 Nec3 Qg8 Qb5 Ra8 Rd1 Ra7 Nh1 Ra8 N1e2 c1N Rd2 Nd3 Bc1 Nf4 Kb2 Ne6 Qd3+ Qe3 Rc2 Ng5 Bd2 Nh7 Nec1 Qg7 Qd4 Qe5 Bh6 Qg8 Bg7 Qed5 Qc4 Qd4 Bh8 Ra7 Rd2 Ra8 Ngh6 Ra7 Bg4+ Kg2 Qb3 Kf1 Qb5+ Ke1 Qd3 Ra8 Bh3 Ra7 Ng4 Qe4 Ngh6 Nc7 Nd4 Ra8 Bd7 Qd8 Rb3 Ned5 Nb4 Qe3 Ng4 Ne7 N4f5 Qe8 Kb1 Ra5 Nb2 Ra1+ Kc2 Qd4 Nba4 Qf7 Ra3 Na6 Nba2 Qg8 Kb2
3bB3/1B1nb1B1/RB6/2kBNp1N/R1B2rp1/K2B1PPb/n1prq3/1Bn4Q b - - 0 1 illegal: No proof kernel
N3kqb1/1B1bn3/1P2N1R1/B1KRbnRr/3N4/1B1P4/2QrB3/N1nR1n2 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 d5 exf5 b4 c4 b3 cxd5 Qd6 axb3 Kd8 b4 Ke8 b5 Qd8 Ke2 h5 Ke3 c5 g4 e5 f4 e4 b6 c4 Kd4 e3 g6 e2 d6 e1N f6 h4 f7+ Kd7 g5 h3 f5 c3 d3 h2 f6 c2 g7 Rh6 a6 Ne7 g8B Qc7 g6 Rh7 a7 Qc6 g7 Ng6 Be2 Nh4 Na3 Qb7 Bd2 c1N Nc2 Rh8 Nf3 Qc6 Ra5 Rh7 Rg5 Na2 Na1 Rh5 Ba5 Nc1 Qc2 Neg2 Rd1 h1B Rg6 Be7 f8N+ Ke8 Bd5 Bd7 g8B Ne3 Ne6 Qc8 Bb7 Nf1 Rg5 Qd8 Kc5 Nc6 Nfd4 Nf5 Rg6 Bd5 Rg5 Rb8 a8N Bf8 Rg6 Nce7 Rg5 Bg7 Rg6 B7c6 Rg5 Rc8 f7+ Kd7 f8R Be5 Rf6 Qf8 Rfg6 Ke8 Nf4 Ba2 Bb3 Rc7 Ba4 Bg8 d7+ Kf7 d8R Bd7+ Bbc6 Rc8 Nfe6 Rc7 Bb3 Ra7 Bc3 Ra2 Ba5 Rb2 Bb7 Ra2 Rc8 Rb2 Rc6 Ke8 Rd6 Ra2 Rd5 Rb2 Qc4 Rd2 Qc2
B1N2n2/1Rq1pqnq/PN1nnB2/4B3/k5R1/bRqN1K1Q/3RP3/3N3B b - - 0 1 legal: proof: c4 a5 b4 b5 bxa5 d5 cxd5 g5 f3 g4 f4 Ra6 Qc2 Rg6 Qd1 Rg5 fxg5 Ba6 Qa4 Bb7 Qd1 Bc8 g3 f5 Nh3 h5 Ng1 f4 h3 f3 Qc2 Rh7 Qa4 Rf7 Qd1 Rf4 gxf4 g3 Bg2 Bg4 hxg4 Nc6 Bf1 Nb8 a4 Kd7 d4 c5 f5 h4 a6 b4 g6 g2 Kf2 c4 a7 b3 a8N h3 d6 Kc6 a5 Kb5 f6 b2 d5 c3 f7 c2 a6 h2 g5 Nh6 d7 Kb4 g7 Ng8 g6 Qe8 d8B Nh6 g8R Nf5 g7 Nd4 d6 Nb5 d7 Nc3 Ra3 Na2 Bc7 Nc6 d8R Nc3 Be5 Kb5 Nb6 Nd4 Nh3 g1N Nc4 Qd7 Bg2 Qc7 Bg5 c1Q Qd3 Ne6 Rb3+ Ka4 Bgf6 Nb5 Nf4 Nd6 Qc3 Qd2 Nd3 Nh3+ Kg3 f2 Ba8 f1N+ Kf3 Ne3 Rd7 Nef5 Rd1 Qc2 Rd2 h1Q+ Kg4 Qd8 Rdb7 Qhc1 Kf3 Qe8 Nba3 b1Q Ne3 Qc1b2 Nd1 Nhf4 Qc8 Qc7 Nc4 Nd8 Qe6 Qc3 Qc8 Ng6 Qe6 Ng3 Qh3 Nh5 Rh8 Nb5 g8B Bg7 f8N Ne6 Nd7 Qf7 Rh7 Bh8 Rg7 Ngf8 Rg4 Nd6 Bh7 Bg7 Be4 Bh6 Bd5 Nhg7 Be4 Be3 Bd5 Bc5 Be4 Bb4 Ndb6+ Kb5 Nc8+ Ka4 Ke3 Qbc2 Bh1 Ba3 Kf3 Qc1 Rc2 Qh6 Rd2 Qh7 N4b6+
3B4/N1kNN2R/1p2bp2/1R1qq2r/b1BB2Q1/n3B2P/R1PK3R/b1r4N b - - 0 1 illegal: No possible last move
3bb1n1/4R1R1/1Q1r1N1b/p1NN2Pr/n2p1B1P/2b2R2/1BN1BK2/R3B2k b - - 0 1 legal: proof: d4 b5 g4 g5 a4 f5 axb5 c5 dxc5 h5 gxh5 g4 f4 Kf7 e4 Ke8 exf5 Qb6 Bh3 Qh6 Bf1 Qg5 fxg5 Bb7 Bf4 Ba6 Bc1 Bc8 h4 Kf7 c4 e5 b4 a5 f6 Ke6 f7 Kf5 b6 Ke4 c6 d5 b7 g3 c5 g2 c7 Nd7 b8B Nb6 c6 Rh6 b5 Nd7 b6 Rf6 h6 Nc5 b7 Na4 h7 Rg6 h8B Nh6 Qd4+ Kf5 Qb6 Ke4 Nf3 Rd6 Nd4 Rd7 Nc2 Kf3 Nd2+ Kg3 Nb3 e4 Bhb2 e3 Bd2 d4 Nc5 Be7 f8R g1B Ba6 Kg2 Rf3 Rd5 Bb4 Bg4 c8R e2 c7 Bh5 Rg8 Bf8 c8N Bh2 Ne7 Bc7 Rg6 Rd7 Nd5 Ra7 Bb5 Bd8 Bf4 Ng8 b8N Rd6 Nbd7 Rb7 N7f6 Rh7 Rh2+ Kg1 Rhf2 Kh1 Re3 Rh8 Rff3 Rh6 Kf2+ e1B+ Kf1 Rh8 Be2 Rh7 Re7 Rh6 Rgg7 Be8 Rh7 Rh5 Rhf7 Bh6 Rg7 Bd2 Kf2+ Bc1 Be1 Bd2 Qb8 Bc3 Qb6
1kqB3r/q1RP4/1q2pQBR/1P2N1R1/2N1KB2/n6B/3p2RN/r2nN2q b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 b4 c4 b3 c5 Rh7 axb3 Nc6 b4 Nb8 b5 Rh8 b6 d5 d3 e6 Qf3 Ba6 Nc3 Bd6 cxd6 c5 Nb1 c4 Qg4 c3 Qd1 Bc4 dxc4 Qf6 Bd3 Qg5 Bf1 Qd8 Ke2 Kd7 Kf3 Kc8 h4 g5 b4 a5 b5 d4 b7+ Kd7 c5 a4 c6+ Ke8 c7 Kd7 c8B+ Ke8 d7+ Ke7 f6+ Kd6 f7 Kc7 f8R g4+ Ke4 g3 f4 g2 f5 c2 f6 a3 f7 d3 h6 a2 h7 Nh6 h5 Ra5 Nd2 Ra7 Qf3 Ra5 Rg8 Ng4 f8N Ne3 h6 Nc4 Qf6 Ra4 Rg5 Qe8 Ngf3 g1Q Ne1 Ra7 Rh2 Qf7 Ng6 Na3 Rhg2 Qf8 Nc4 Qd8 Nh4 Qf8 Nhf3 Qh1 Bf4+ Qd6 Nh2 d2 Rc1 Re8 h8N a1Q h7 Nc6 Ng6 Kb8 h8R Nb4 Rh6 Rh8 Nge5 Qb6 Bd3 Na2 Bf1 Ra4 Bd3 Ka7 b8B+ Ka8 Bc7 Nc3+ Kf3 Qa2 Bg6 Nd1 Bd8 Kb8 Ke4 Ra7 Bb7 Ra5 Rb1 c1Q Ra1 Qc3 Rc1 Ra7 Na5 Qc8 Rc7 Qa1 Nac4 Ra5 Kf3 Qad4 Bbe4 Qa7 Bef5 Qdb6 Bg4 Nb1 B4f5 Ra1 Ke4 Na3 Bh3
4k3/BR3N1P/PNN3n1/p2qB3/1r1pB1K1/B2R3N/1RQnn1pq/3R3b b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 g4 c5 gxh5 c4 b5 c3 dxc3 Qb6 c4 Qc7 c5 Qd8 a3 e6 Qd2 Ra6 bxa6 b5 Nf3 b4 Ne5 b3 Qd1 Be7 Nf3 Bf6 Ng1 Bc3+ Bd2 Bb4 axb4 Qf6 Bc1 Qd8 Ke2 g5 Kf3 d5 c4 b2 h4 e5 f6 d4 c6 Qd6 c7 Bf5 c8R+ Kf7 b5 Bg6 h6 Qe7 c5 Qa7 c6 Qa8 b6 Bc2 b7 Bb3 h5 Rh7 c7 Qa7 Na3 b1Q Nb5 Bc2 Ba3 Rh8 Rh2 Qb6 Nd6+ Ke6 f7 Kd7 f8R Qc1 Bd3 Bb3 Rf7+ Ne7 h7 Rf8 h8B Qc2 h6 Nc6 h7 Qbc5 Nh3 Nb4 b8B Nd5 Ba7 g4+ Kg3 e4 Be5 Nb4 f4 Na2 f5 e3 Kf4 g3 Kg4 e2 f6 e1N Qe2 Bc4 Rd1 Bd5 Qf2 Bg2 Be4 Qb2 Rb8 Rd8 c8N Nc1 Rb3 Qd5 Rbd3 Nf3 Rg7 Re8 f7 Ng6 Ne7 Rb8 Nc6 Bh1 Qd2 Rb5 Qc3 Qf2 Qc4 Qg1 Rb2 g2 Qc2 Ne2 Ne8 Nd2 f8N+ Kc8 Nd7 Qh2 Nd6+ Kc7 Rf7 Rb4 Nb6+ Ne7 Nb8+ Kd8 Rg7 Ng6 Rb7 Qa2 Nf7+ Ke8 Nc6 Qe6+ Kg5 Qd5 Kg4
5Rbn/k2NrN2/Q1q2b2/1BN1qqP1/2Kn4/rRPR4/nB2R3/N4BBb b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Kd3 Kd7 b4 Kc7 f4 Kb7 g4 a5 b6 h5 c6+ Ka6 c7 e5 b7 a4 b5+ Kb6 c3 d4 f6 h4 f5 a3 f7 e4+ Kc4 e3 g6 e2 g5 e1N g7 h3 f6 a2 Ne2 h2 Nd2 d3 Ne4 d2 Bb2 Be7 f8B Bb4 f7 Rh7 Nd4 Nf3 Nb3 Ra7 Nec5 Nc6 b8N Nh6 g8N Nfd4 Qg4 Ra3 Re1 d1Q Nbd7+ Ka7 Re2 Qe8 Na1 Qb1 Qh3 Bb7 c8B Qf5 Bd6 Qfe5 f8R Nf7 Nh6 Nh8 Nf7 Ba5 Rg1 h1B Rg3 Nb4 Rd3 Bd8 Qe6 Bbc6 Ba6 Bf6 Bc7 Qf5 Bh2 Ba8 Qc6 Qee5 Qc8 Baf3 Bg1 Bh5 Nh6 Re7 Nf7 Bg6 Nb8 Bh7 b6+ Ka8 b7+ Ka7 Nbd7 Bg8 Nab3 a1Q b8R Na2 Bb5 Qd1 Na1 Qc1 Ba4 Qcf4 Rb3 Q4e4 Bb5 Qc6 Qa6+
r5r1/4b1B1/bNN3B1/R2R2rR/Q1N1k3/PKnqBR2/1P2r1nn/2NrB3 b - - 0 1 illegal: No proof kernel
qr6/n1P1R2K/1RB2b2/qq1Q1k2/2R1q1bB/5n2/NNB1RP1B/N2q1rN1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Ke3 Kf6 Ke4 e5 b4 a5 c4 g5 h4 d6 b6 g4 c6 a4 c7 a3 b5 g3 b7 a2 h6 g2 h7 Ne7 c5 Rg8 h8R Rg3 c6 Rc3 b6 Qd7 h5 Na6 b8B Qe6 b7 Nd5 h6 Qf7 h7 Rc5 Rh4 Qg8 Bb5 Ndb4 Qd5 Rc2 Nc3 Bd7 c8B Be7 Bg5+ Kg7 f6+ Kg6 f7 Nc7 f8R Ne6 Re1 a1Q Rf7 Qa5 Re2 Rc1 Na2 Bf6 Re7 Rf1 Ba4 Qf8 Bc2 Nd4 Rg4 Be6 Bd7 Nf3 Rf4 Qc8 Bh4 Bg4 Bc7 Qg8 b8N Qf8 Na6 Rb8 Nc5 Qb5 Nh3 g1Q Nb3 Qg2 Ng1 Qc8 Rhe8 Qcb7 Na1 Qa8 Re6 Qh1 R8e7 Qg2 Bb6 Qh1 c7 Nc6 Bd4 Na7 Bc6 Qg2 Bg3 Qh1 h8N+ Kg5 Nf7+ Kg6 Ke3+ e4 Ne5+ Kg5 Bh2 Qg2 Qb3 d5 Nd3 Kg6 Nb2 Kg5 Be5 Kg6 Rf5 d4+ Kf4 e3 Qd5 d3 Ke4 d2 Beg3 d1Q Bh4 Qh1 Rf4 Qg2 Rd2 e2 Rd6 e1Q+ Re2 Bh5 Rde6 Qea5 Rd6 Kh6 Kf5 Qh1 Rc4 Qg2 Ke6 Bg4+ Kf7 Qh1 Be8 Qg2 Kg8 Qh1 Rb6 Qg2 Qd8 Qe4 Bd7 Kg6 Bc6 Kf5 Kh7 Qg3 Rd2 Qd6 Qg8 Qd8 Re2 Qc8 Qf7 Qb7 Qg8 Qa8 Qd5+
2RB1k2/RR4n1/rB1nb2r/3Q3n/P1Pq4/4Br2/N1p1N1KN/Nb2bR1B b - - 0 1 illegal: No proof kernel
1B4kr/5bnR/NRb1n3/4rBbP/qPpR2NN/BQRrN1B1/2K5/1n6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 h4 g5 b4 f5 d4 Kf7 Kd2 a5 e4 c5 e6+ Kg7 d6 c4 h6+ Kh7 b6 f4 d5 a4 b7 g4 h5 f3 e7 a3 e8N a2 e5 f2 e6 g3 e7 g2 d7 Ra7 d6 Ra5 Qb3 Na6 b8B Qb6 d8B Nc7 d7 Ra8 Kc2 Qb7 Rh3 Qa7 Ba3 Ne6 Rc3 Nf6 Bdc7 Kg8 d8R Qa4 Rd4 Ra5 Bd3 f1B Nd2 Re5 Ngf3 g1R Nh4 Bg2 Nf1 Bc6 Bf5 Rg3 Ne3 Bg7 Bd6 B8d7 Nc7 Ne8 Na6 Bf6 Rad1 N8g7 e8N Bg5 Bdc7 Bd5 Rg1 B7c6 h7+ Kf8 Nf6 a1N+ Kb1 Nc2 Nfg4 Nc5 Rgd1 Bf7 Rd6 Nce6 R1d4 Bg2 Rb6 Bc6 Nf1 Rd3 Nfe3 Rb5 Bg3 Re5 Bb2 Na3+ Kc1 Rg8 h8R Nb1 Rh7 Rh8 Kc2 Kg8 Ba3
1nbBrrN1/2n1P1b1/npB2R2/rB2N1KP/6R1/b5Rk/4Bq2/QRN4N b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Ke3 f5 Kf4 c5 h4 b6 d4 g6 a4 c4 e4 c3 a6 c2 h6 Qe8 e6 Kf6 a7 Bb7 h7 Ba3 e5+ Kg7 h5 Kh6 e7 Bb2 a5 Qd7 e8N Ba6 e6 Bd3 d6 Bc4 d5 Qc8 a6 Qc7 Rh3 Bb5 Nf6 Bc6 Bb5 Bc3 Ne2 Ba5 Nbc3 Ne7 Na2 Re8 h8N Bb4 Rb1 Ba3 Ng3 Bd7 Nh1 Bc8 Rg3 Qc5 d7 Qg1 Bd2 c1N d8R Nb3 d6 Nc5 d7 Qh2 Nc1 g5+ Ke5 f4 Ng6 g4 Ng8+ Kg5 Qa4 Bb4 Qa1 Nd5 Be1 f3 Be2 Re7 Rf8 f2 d8R f1R Rf6 Nc7 Rd4 Re8 e7 Ba3 Bb4 Na4 Bd6 Nc5 Bb5 Rf3 Rdf4 Qf2 Ra4 N7e6 Bc7 Rf4 Bd8 Nc7 Nf8 Kh4 Nd7 Rb4 Be2 Rb5 Raf4 Rf8 Kf5 Ra5 Kg6 Re8 Ne5 Rf8 Rg2 Kh3 Kg5 g3 Rg4 Re8 Rg1 g2 Bb5 Nc6 Be2 Rb8 a8B Rf8 a7 N5a6 Bb7 Ra8 Bb5 Ncb8 Bf3 Re8 Bfe2 Rf8 Rd1 g1B Rf1 Bh2 Rfg1 Bf4+ Kg6 Bh6 R1g2 Bg7 Kg5 Nc6 Rg1 Rb8 a8B Re8 Bb7 Ra8 R1g2 Ncb8 R2g3+ Kh2 Qb2 Rf8 Ncd3 Bd7 Bbf3 Nc6 Qa1 Rc8 Nc1 Ncb8 Bfc6 Bf5 Rg1 Kh3 R1g2 Na8 Bc7 Rce8 Rg1 Bc8 Bd8 N8c7 R1g3+
r3R2k/1Nr3p1/6q1/1rR2P2/R3NKbb/2PBRN2/b1qn1nB1/2BQ2BN b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 d5 f4 a5 b4 e5 h4 a4 b6 e4 c3 a3 h6 a2 c6 Ra7 h7 Qf6 b5 Be6 h5 Ra6 h6 Qe5 f6 Qf5 c7 Ra5 c8B Kg6 f7 Be7 f8B Qh5 b7 Nf6 f5+ Kf7 b6 d4+ Kf4 d3 Nd2 e3 Ngf3 e2 Bg2 e1Q Ne4 d2 Rh3 Ra7 Ng3 Ne8 Nh1 Na6 b8N Nf6 b7 Qe2 Nd7 Qg6 b8N Ne4 Nc6 Rc7 Nc5 Bh4 Na5 Nf2 Ne4 Nc5 Nb7 Nb3 Bc5 Rd8 h8R Rd5 Bb6 Rb5 h7 Qd3 Re8 Qc2 h8R Bd5 Qe1 d1B Rg3 Be2 Qd1 Nd2 Re5 Be6 Rc5 B6c4 Re8 Bd5 Nd4 Bg4 Re3 Be6 Nf3 Bc4 Rb1 a1R Rb4 Ra8 Ra4 Ba2 Bd7 Rb2 Bb5 Rb4 Bd3 Rb5 Re6 Kg8 Re8+ Kh7 Rd5 Bh5 Re1 Ng4 Bg1 Nf2 Re3 Bg4 Re7 Kg8 Rc5 Kh8 Re8+
n2nk2Q/P1bRpb1R/5R2/1B1q1N1B/1r2Nr2/4RNBB/1q1P4/2r1bK1N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 b5 f4 h5 a4 c5 f6 h4 f5 c4 f7+ Kd7 f6 c3 a6 c2 a5 h3 d6 h2 g6 b4 g7 b3 a7 b2 g5 Rh7 g6 Ba6 Ne2 Bc4 a6 Rh8 Ng3 Bd3 Nc3 b1R Ba3 c1B Nce4 Qc7 Qg4+ Kd8 d7 Rh6 Bd6 Rb2 Ra3 Rb3 Bh3 Bc2 Kf1 Rb2 Re3 Nc6 Qg5 Rab8 a8B R8b4 a7 Qb6 Bb7 Bb3 Ba6 Ba2 Bb5 Rh4 Qg4 Rb1 Be5 Nh6 g8N Nd4 g7 Ne6 Qg6 Nc7 Qg5 Ng4 Nh6 Na8 g8B Bg7 f8N Bf7 Nhf5 Nh6 Ng6 Rg4 Ngh4 Rf4+ Nf3 Ba3+ Re1 Bh8 Qg7 Rc1 Bh7 Bb2 Bg6 Bd4 Bh5 Bf2 Bd6 Qd4 Bb8 Qb2 Bd6 Rc7 Re3 Be1 Be5 Rc1 Bb8 Bg8 Bd6 Nf7 Bb8 Ne5 f7 Nc6 Bd6 Bh7 Be5 Bg6 f8R+ Be8 Rf6 Bf7 Rg1 h1Q Bd6 Qh2 Nh1 Qg3 Rg2 Qg4 Rh2 Qg5 Nh4 Qd5 Nf5 Rh4 Bg3 Rf4 Qh6 Bg7 Qh7 Bh6 Qg7 Bg5 Rh6 Bf6 Rh7 Be5 Rf2 Kc7 d8R Bd6 Rc8+ Kd7 Rc7+ Ke8 Rd7 Nd8 N5d4 Qa3 Nfg5 Rh4 Rf6 Bc7 Ngf3 Rf4 Nf5 Qb2 Qh8#
N5k1/1rpnN3/1bb1r2b/4BrBN/R1nN1P1b/3q1P2/RQR1R2K/2BB4 b - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 h5 gxh5 b5 a4 f4 axb5 f3 exf3 Bf5 f4 Bc8 b4 Kf7 h4 a5 d4 e5 h6 g5 b6 g4 d6 a4 h7 e4 d5 g3 f3 a3 b7 g2 Kf2 a2 Kg3 e3 h5 e2 h6 e1R d7 Qg5+ Kh2 Qd8 d6 Re7 b5 Re5 b6 Re1 Nc3 Ra5 Qe2 Ra6 Qb2 Ra4 Ne4 Rc4 Ne2 Ra4 Nf6 Ra7 Nh5 Qe7 d8R Ra4 d7 Qe6 Nd4 Bd6 Re8 Qe2 d8B Nd7 b8R Qd3 b7 Ngf6 Ra8 Ne4 b8N Rf8 h8N+ Kg8 Be2 Ra7 Bd1 Bb7 Bg5 Nd2 Ng6 Bc6 Re2 Rb7 Ra4 Nc4 Rf1 Be7 Rff2 Rf5 h7+ Kf7 h8B Kg8 Rc2 Re6 Rfe2 Bf8 Be5 g1B+ Kg2 Bh6 Ne7+ Kf8 Kh3 Bf2 Kh2 Bh4 Na6 Kf7 Nb4 Kf8 Nbd5 Kf7 Rb1 a1B Nb6 Kf8 Na8 Kf7 Qa2 Bc3 Qa3 Ba5 Ra1 Bb6 Qb2 Kf8 R1a2 Kf7 Nd5 Kg8 Ne7+
1BQ2N1n/N7/BkR1P1qB/1N1K4/1q1p1r1R/n3qn2/1b1P2R1/2qR1rBN b - - 0 1 legal: proof: g4 h5 gxh5 e5 c4 b5 cxb5 e4 b6 d6 a4 e3 b4 Qd7 a5 Rh7 a6 Ke7 b5 Bb7 axb7 Rh8 fxe3 Qd8 e4 Kd7 e5 Ke8 Kf2 Kd7 Kf3 f5 h4 c5 e4 g5 h6 a5 h5 f4 h7 c4 h6 d5 Qc2 a4 Bb2 c3 Na3 Qf6 Rc1 Qd8 Nh3 Bg7 Nf2 Nc6 b8N+ Kc8 b7+ Kc7 Rg1 Nge7 Nh1 Rf8 h8N Ng6 h7 Qf6 Rd1 Kb6 Rg3 Na5 Nc6 Nc4 b8B Qf5 Qc1 c2 Rg1 Ra5 Na7 Ra6 Bd6 Rf6 Bf8 g4+ Kf2 g3+ Kf3 g2 Bd4+ Ka5 b6 Qg5 Qa1 c1Q b7 Rf7 b8B Raf6 Bd3 Qb2 Qc1 Qb4 e6 Qe5 e7 Qed6 Rge1 g1Q e8R Rf5 Be5 Kb6 Re6 R7f6 Re2 Qe3+ Kg4 f3 Rg2 f2 Bh2 f1N e5 Rf2 Bg1 R6f4+ Kg5 Qc6 Rd6 Nh2 e6 Bb2 Qc3 d4 Qc2 Ne7 Ng6 Rf1 h8R Nf3+ Kh5 Nce5 Ba6 Nc4 N3b5 a3 Bg7 a2 Nf8 a1Q Kh6 Ng8+ Kg6 Qb1 Rh4 Na3 Bh6 Ne7+ Kg7 Ng6 Qc3 Rg4 Kf6 Nh8 Ke7 Rf4 Qc5+ Ka5 Qc1 Qce4 Qc8 Qg6 Kd7 Qa1 Kc6 Qab1 Kd5 Qc1 Rd7 Kb6 Rc7 Qed3 Rc5 Qe3 Rc6+
B1KRqRB1/R1P2n2/N2r4/4R2N/b1NQNnp1/1p2B3/3bP1k1/1q2B1qr b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 Kg4 b5 c4 d5 a4 g5 h4 f6 c6 d4 h6 b4 c7 d3 h5 d2 a6 b3 a7 Ba3 a5 Qd3 c5 Kd5+ e6 Ke4 h7 Bb4 c6 Qc3 h6 Qc2 a6 Bb7 c8N Bf8 e7 Qa2 e8R+ Ne7 Nc3+ Ke3 Nh3 Rg8 h8R Bg7 h7 Qa5 Ne4 Ng6 Re5 Qc3 Kf5 g4 Ke6 f5 Ncd6 f4 Bg2 f3 Rf1 f2 Nf4 Nd7 Nh5 Rad8 a8B Bh6 a7 Nf4+ Ke7 Qd3 Bf3 Qb5 Nc4+ Kd4 Ra5 Rg6 Re8 Rd6 h8B Ba6 Ra3 Qa4 Bf6 Bb5 Bh4 Rc8 Rf8 Rb8 Rh1 f1Q Be1 Qg1 Rh4 Rb7 Kd8 Rb6 Kc8 Ra6 Ree8 Ne5 Rd8 Nf7 Rh3 Rb6 Bh1 Rb7 Re3 Re7 Qc2 d1Q Qc3+ Kd5 Bcd2 Qb1 Qd4+ Ke6 Rh3 Kf5 Be3 Ree6 Rf3 Re5 Rfe8 Red5 Re5+ Kg6 c7 Ne6 Bg5 Qd3 Nc3 Qf2 Qf4 Qb1 Bc6 Rd1 a8N Nh8 Nab6 Rc1 Nd7 Qe3 Bf2 Rf1 Bg2 Rh1 Be1 Qg1 Bd5 Bc6 Qd4 Qb5 Bgh4 Bd2 Nb8 Kh6 Rff8 Nf4 Bg8 Nf7 Bhf2 Qa4 Ree8 Kg5 Be3 Qb5 Ra4 Qe5 Ra8 Ba4 Ra7 Qee4 Re7 Qc6 Na6 Qe8 Ng3 Kh4 Ba8 Kh3 Nh5 Kh2 Ne4 Kg2 Re5
3N2r1/2Pq1Q2/b4RBR/1R2PBkp/3pN2R/2BN4/1qqb1r2/Nn1Bn2K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 b4 d5 e4 f5 c4 a5 g4 h5 Kg2 d4 b6 a4 g6 f4 b7 a3 g5 a2 b5 Bh6 e6 Bd7 b6 Bb5 g7 Ra4 c6 Nd7 b8R Qc8 e5 Nf8 c7 Nf6 g8R Be8 b7 Ne4 c5 Ng3 g6 Bg5 c6 Bf6 g7 Nf5 Nd2 Ra7 Nb3 Nd7 Nh3 Ra4 Be2 Rc4 Rf8 Rc5 Bb2 Nd6 Qf1 Bg5 Rf6 Rg8 Nf2 Nc4 Nd3 Nd2 Bd1 Rc2 Bc3 Nc5 Rh4 f3+ Kh1 Qd7 c8B f2 c7 Nb1 Rh6 Bf7 Rf6 Ke8 e7 Bc4 Rh6 Kf7 e8B+ Ke7 Bg6 Ke6 Rf4 Ba6 Rh4 Rh8 g8N Bd2 Nf6 Rg8 Ne4 Rb2 Qg2 f1Q+ Qg1 Qe2 Qf1 Na3 Rb1 a1Q Rc1 Qb1 Na1 Qc2 Rb1 Ra2 Rb5 Nb1 Ra8 Rb2 b8N Ra2 Nc6 Qf2 Be8+ Kf5 Nd8 Qb2 Rab8 Qc2 R8b6 Qb2 Ng3+ Kg5 Bg6 Qe2 Qf7 Qc2 Nf2 Nd3 Rf6 Ne1 Nd3 Qb2 Bb7 Qf2 Bbe4 Qe2 Bef5 Qf2 Bdg4 Qe2 Bf3 Qd1 B3g4 Qdc2 Bd1 Qbb3 Be6 Bf4 Nb2 Qd3 Na4 Rf2 Nc5 Bd2 Bef5 Qdc2 Nd3 Qbb2 Ne4+
4bbbq/1P2p1R1/N4bQn/5NBP/2r1N1kB/3Kp3/1r1RBBN1/1R2Rn2 b - - 0 1 illegal: Other
7N/RRQ1p1bp/2rRn3/qnRBNbrP/3B3k/1B2P1N1/3N2pp/3KBr2 b - - 0 1 illegal: Other
2BRK3/ppqnp1b1/n5NN/1Pbr4/N4pQ1/PRBkN3/1R3RB1/2B2b1r b - - 0 1 illegal: No proof kernel
1qqR1r1n/P1n4R/1n2Q3/N1NB1P2/Q6B/N5b1/2PKR1n1/2Q1B2k b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 f5 gxh5 c5 d4 b5 axb6 c4 a4 f4 a5 f3 exf3 c3 f4 Ra6 f5 Bb7 Nxc3 Be4 Nb1 Ra7 a6 Bg2 Bxg2 Rc7 Bf1 Rc5 dxc5 Qc8 Qd6 Qc7 Qd1 Qd8 h4 Kf7 f4 Kf6 h6 d5 h5 g5 c6 e5 h7 d4 h6 d3 a7 e4 c7 e3 c8Q g4 b7 e2 Bg2 g3 Bd5 g2 Kd2 e1N Ne2 g1N Ng3 Bc5 Na3 Nd7 b8N Qc7 Nc6 Ng2 Na5 Ne7 Bb2+ Bd4 Bc3 Nh3 Qc1 Rf8 h8R Ng5 h7 Ng6 Rh3 Nb6 Ne4+ Ke7 Rh2 Qb8 Nc5 Kd6 f6 Ne6 f7 Nc7 f5 Ke5 Qe6+ Kf4 Rg8 Kg3 h8Q Bg1 Qd4 Bf2 Qa4 Qc8 Bf6 Qb8 Bg5 Nh8 Rh7 Qc8 Bh4+ Kh2 Rb1 Bg3 Rb4 Qb8 Re4 Qc8 Re2 Qb8 Kc3 d2 Kd3 d1Q+ Kc3 Rd8 f8B Kh1 Bfe7 Qf1 Kd2 Rf8 Bef6 Qg1 Bd4 Qc8 Bf2 Qf1 Be1 Qf4+ Kd3 Qe5 Kd2 Qd6 Rgg7 Qdd8 Rd7 Qb8 Rd6 Qdc8 Rd8
6nQ/1k2Nn2/1P2B2B/1Kbrq3/2NNP1rR/3P2Rb/RQ1rB1Q1/3rr3 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Na6 cxd3 Bc5 d4 Bf8 d5 Nb8 h4 Kd7 e4 f5 Ke2 g5 Kd3 c5 Kc4 Kc7 a6 g4 d6+ Kb6 d3 f4 e6 g3 e7 f3 e8R g2 a7 f2 h6 Qg5 d7 Kb7 d8N+ Kb6 h5 Bf5 h7 Qg7 h6 Nf6 Nd2 Qg5 Qf3 Nc6 Ne2 g1R Nd4 Bd6 Rh4 Bh3 Ra4 Rg8 Qg4 Rg2 Qg3 Rg7 Ra2 Qe5 Qg6 Rc8 a8B Rd7 Re6 Ng8 Be2 Rg1 Qg4 Rcc7 Bb7 f1R Bc8 Rg3 Rg6 Re1 Ra8 Be7 Ra1 Rb7 Ra2 Rd5 Qf3 Kc7 Qf1 Kb8 Qg2 Rc7 b6 Bf8 Kb3 c4+ Ka4 c3 N8e6 Nf6 Nf4 c2 Be6 Nd8 Rg7 Rc8 Rg5 Rc7 Ng6 Rc3 Rgg4 Bc5 Rg5 Rc4+ Kb5 Kb7 Bg8 Rd6 Be6 Ng8 Rgg4 Nf7 Rg5 Nh8 Ne7 Rd5 Ra6 Rf3 Rg3 Rf4 Ra4 Nf7 Ra2 Qc7 h8Q Rc3 Qf6 Rc4 h7 Rg4 Qg5 Qe5 h8Q Rc3 Nc4 Rb3+ Ka5 Rb2 Bd2 c1R Be3 Rd2 Kb5 Rdc2 Qf4 Rcd1 Bc1 Ng5 Qd2 Nf7 Qb4 Rb2 Bh6 Rbd2 Qb2
2bQ3b/1B3PNn/KQNrr3/BpR4Q/N3P3/3k4/bBR1Pnq1/1b3R2 b - - 0 1 illegal: Other
B1R5/1k1b2r1/2N5/1bQr2Pq/n2N1bBB/1p4RN/3qPR1P/KQQ1q3 b - - 0 1 legal: proof: f4 a5 b4 e5 fxe5 d5 bxa5 d4 g3 d3 cxd3 Nf6 d4 Ng8 d5 Bd7 Na3 Be6 Nb1 Bc8 Nf3 g5 Ng1 h5 Kf2 h4 gxh4 g4 Ke1 Bf5 Bg2 Bd7 Bf1 Bc8 Nf3 Nc6 Ng1 Nd4 Na3 Ne6 Nb1 Ng5 hxg5 Ba3 Qc2 Bc5 Qd1 Bf8 a4 Kd7 d4 c5 Kd2 Kc7 Kc2 b5 Kb2 f5 d6+ Kc6 a6 g3 a5 g2 d7 f4 d5+ Kc7 e6 c4 a7 b4 a6 f3 e7 f2 e8R b3 d6+ Kc6 Nh3 g1Q Be3 Nf6 Qc1 Qc7 d8Q Qa5 d7 Ne4 Na3 Qe1 Nc2 Qg4 Qe7 Rh7 Rg1 Qh5 Rg3 Nc5 d8N+ Kb6 Bd4 Bd7 Nc6 Rg7 Rc8 c3+ Kb1 Rb8 a8Q Be8 Bg2 f1B a7 Qd2 Qe5 Bd6 Bf3 Bd7 Bg4 Bg2 Qd5 Bf4 Bf2 Bf3 Be1 Na4 N2d4 Ka6 Qc5 Rb5 Bf2 Bd5 Be1 Bc4 Bf2 Ra5 Be1 Bb5 Bf2 Nb2 Ra4 c2+ Ka1 Qe1 Qb1 c1Q Qb8 Qe3 Qc7 Q3d2 Qcc1 Bd3 Qe5 Kb7 Qec5 Rb5 Rc4 Na4 Rc3 Qh7 Rf3 Qg6 Bh4 Qh5 Rf2 Bc4 Rg3 Bd3 Q5a3 Rd5 Qac5 Bb5 a8B+
2NR3r/2Q1bBr1/1KbRPN2/PpPN1Q2/q2q4/5R1B/5nk1/1Q3bBr b - - 0 1 legal: proof: d4 a5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 Nc6 gxf5 g4 b4 Nd4 bxa5 Ne6 Nf3 Bh6 Ng1 Ng5 hxg5 Bf8 Kd2 Ke7 Kc3 h5 Kd4 d5 a4 b5 c4 h4 e4 g3 f6+ Ke6 g6 g2 a6 h3 c6 h2 f7 Rh3 a5 Bg7 Kc5 d4 f8Q d3 c7 d2 a7 Qg5 Ra3 Qf5 Kb6 Rh4 c5 Bd7 c8N Rf4 Nc3 Qg4 Be2 Rf6 Nd5 Rf7 Nf6 Ne7 Nh3 g1R Rf3 Bh8 g7 Qh4 g8Q Ng6 Qgg7 Nf4 Qc2 d1B Be3 Bc6 Qb1 Nd3 Bf2 Rf1 Bg1 Nf2 Qh7 Qg4 Qd8 Bg7 Qc7 Bf8 Qh5 Be7 Qh7 Rg7 Nf4+ Kf7 N4d5 Ke6 Qh3 Bc2 Qh5 Bd3 Qh3 Kf7 e6+ Kg6 e5 Kg5 Qh7 Qf4 Qf5+ Kh4 Bd1 Qa4 Be2 Bd6 e7 Rd1 e8B Be7 e6 Bc4 Rf4+ Kg3 Bg4 Bf1 Bf7 Kg2 Rf3 Re1 Nd6 Re8 a8R Rh8 Rd8 Bd3 Nb4 Nd1 Bd4 Be2 Rhf1 Bc4 Nc8 h1Q Qbe4 Qg1 Qb1 Qf2 Rd3 Qe3 Rf3 Reh1 Rd2+ Qf2 Be3 Be2 R2d6 Bf1 Nbd5 Qd2 Bf2 Qdd4 Bg1 Nf2 Bh3+
1K3R1r/2BQ4/NN4B1/nPr5/b2qPq1P/2R1n1q1/p1N3Q1/q2kRB1Q b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Bb6 Bh3 Ba6 Bf1 Ba5 bxa5 Bc8 Kf2 Kd7 Ke3 c5 Ke4 g5 h4 c4 d4 f6 h6 g4 d6 Ke6 h7 c3 d5+ Kd7 e6+ Ke8 e7 Kd7 a6 c2 a7 f5+ Ke5 a3 e4 f4 Nh3 g3 Ng5 g2 Rh3 g1Q Ra2 f3 Bf4 c1Q Ne6 f2 Rc3 Qc2 Nc7 Qg3 Na6 Qcd3 Re2 a2 Na3 Qf8 Nc2 Nh6 Qe1 Nf5 e8B+ Kd8 d7 Ke7 d8R Be6 Bf7 Ne3 Bg6 Qf7 Rdc8 Kd7 d6 Bb3 Rf8 Ba4 Bg2 Qd1 Qh1 Qa1 Bf1 Qc4 Rf5 Rc8 h8Q Rc6 Rf8 Rc5+ Kf6 Nc6 Qg8 Re8 a8N Qd4+ Kf7 Na5 Be5 Kc8 d7+ Kb7 Bc7 Rb8 Ke6 Ka7 Bg2 f1Q d8Q Qff4 Qd7 Rd8 Nb6 Rb8 Rf6 Rd8 Qgg7 Rh8 Rf8 Rc4 Bh5 Qff1 Na8 Qc5 Bd8+ Qgc7 Ncb4 Qd4 Bh3 Qg1 Bf1 Qh2 Qgg1 Qg3 Qgg2 Kb7 Bg6 Ka7 Qd5 Qcf4 Kd7 Rc6 N8c7 Kb6 Kc8 Rc4 Qe6+ Rc6 Qd7 Rc4 Nb8 Kc5 Ncd5 Qh3 Bc7 Qhg3 Rcc2 Rc3 N8a6+ Kc4 Kb8 Kb3 Nb6 Rc5 Rc4 Ka3 Nc2+ Kb2 Rc3 Kc1 Qf7 Kd1 Qe7 Qb1 Qd7 Qa1 Re1+
B1bn2QK/b3R2p/1qk1Nr2/P7/Nb1R1BB1/R6Q/PP1Nq3/n2bQ3 b - - 0 1 legal: proof: h4 g5 hxg5 b5 e4 f5 exf5 b4 c3 Bh6 Bb5 Bg7 Bf1 Bf8 cxb4 a5 bxa5 c5 d3 c4 d4 Ra7 Qf3 Rc7 Qd1 Rc5 dxc5 Bb7 Nd2 Ba6 Nb1 Bc8 Ke2 d5 Kf3 Kd7 Kg4 e5 Kh5 d4 g4 c3 f4 e4 g6 d3 g5 e3 f6 c2 f5 e2 g7 e1Q f7 d2 g6 Qc7 c6+ Kd6 f6 Kd5 Nf3 Kc5 Bg2 Qb7 c7 Be6 c8B Qf1 Qe1 d1B Nc3 Ne7 Kh6 Na6 Rh3 Qc7 Na4+ Kd6 Bf4+ Kd5 Nd2+ Bf3 Rd1 Be4 Ra3 c1B Bd7 Bh3 Bg4 Nc6 Bh1 Bb4 f8Q Beg2 g8R Nd8 g7 Qe2 f7 Nc5 Qe7 Qa7 f8N Qb6+ Ne6 Kc6 Q7h4 Nb3 Re8 Bf3 g8Q Na1 Kg7 Bd6 Re7 Bb4 Ne4 Be3 Rd4 Bf2 Nd2 Be3 Rb7 Bg1 Qf7 Rf8 Qg8 Rf6 Kh8 Be3 Bh5 Bf5 Qh3 Bg1 Ng5 Bc8 Ne6 Qe4 Bg4 Bd1 Rd5 Qe2 Rd4+ Kb5 Re7 Be3 Ba8 Bf2 Rb7 Kc6 Qf8 Bg1 Qg8 Qbb5 Re4 Ba7 Rd4 Qb6 Re7+
5B2/1PQ2P2/1N2qqB1/br2rr2/1pN1n1k1/2QKP3/1R2rBQ1/1R2Rq1N b - - 0 1 legal: proof: g4 b5 b4 h5 gxh5 a5 bxa5 e5 c4 f5 e3 b4 Ke2 Ba6 Kd3 Bb5 cxb5 Nc6 Ke2 Nce7 e4 Nd5 exf5 e4 Ke1 e3 Ke2 Ke7 Kd3 e2 Kc2 Ne3+ dxe3 Kf7 Kd2 Ke8 a4 Ke7 h4 Kf6 f4 e1R b6 g5 h6 c5 h7 d5 h5 d4 h6 c4 a6 g4 a5 d3 a7 g3 a6 g2 Na3 Qd4 Rb1 Qc5 Qc2 Qd6 Nh3 g1Q Nf2 Rd8 a8N Qc5 a7 Ke7 f6+ Ke6 f7 Bd6 f8B Qgg5 f5+ Kf6 b7 Bc7 Nb6 Re8 a8Q Qd6 Qc8 Re5 Bg2 Bd8 Qc7 Qe6 Be4 Qg7 Rb2 Kg5 f6 Qgf7 Bg6 Re2+ Kd1 c3 Re1 d2 Nh1 Rb5 Nac4 Kg4 Rb1 Qg7 f7 Nf6 Qa2 Rf5 Kc2 d1R+ Bd2 Ne4 Kd3 c2 Rb2 Rg8 h8R c1Q h7 Qgf6 Rb1 Rg7 Rg8 Re5 h8Q Rh7 Qg7 Rhh5 Rh8 Rhf5 Rh2 Qa3+ Qb3 Qa1 Qc3 Qa6 Rf1 Rc1 Be1 Rcc2 Rhf2 Ra2 Rh2 Raa5 Bf2 Rab5 Rfe1 Be7 Nc8 Bc5 Qg8 Bb6 Qg7 Ba5 N8b6 Rec5 Qh6 Rce5 Qh3+ Kg5 Qf1 Kg4 Qg2+ Ng3 Qg1 Rc2 Nb2 Qg5 Kd4 Rbc5 Qf1 Qge7 Bg1 Ne4 Rf2 Qe2 N2c4 Rb5 Rh2 Qf3 Kd3 Q7f6 Rd2 Qg2 Bf2 Qg1 Rdd1 Re2 Rb2 Qg2 Rdb1 Qh3 Qg1+ Qg2 Qh2 Qf1 Qg2+
5bq1/4B1p1/1QQpr3/1N2PN1q/B1Rn1nRR/PN3B2/7P/1Qb1k1nK b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 c5 d4 h4 dxc5 d6 e5 h3 e6 Qb6 gxh3 Qa6 h4 Qb6 h5 Qd8 f3 b5 Be2 Bd7 Be3 Ra7 Bf2 Bc6 Bc4 Rd7 Bf1 Be4 Be3 Qc8 exd7+ Kd8 Bd4 e5 Bb2 Ke7 Bc1 Qd8 Qd4 Bc6 Qd1 e4 Bd2 e3 Bc1 Be4 fxe4 Rh7 Qd2 Rh6 Qd1 Rh8 c4 Ke6 e5 Kf5 c6 Kf4 a6 f5 c7 b4 c8Q b3 c5 b2 h6 Nf6 a7 Ng8 a8B Rh7 c6 Qc7 d8Q Qa7 c7 Qa5+ Nc3 b1N a3 Ne7 Nf3 Ng6 Rg1 Nc6 Nd4 Qd5 Ncb5 Qg8 Nb3 Nd4 Bf3 Nc3 Bd3 Nce2 Kf1 Rh8 Bc2 Rh7 Rg3 Ng1 Kg2 Rh8 Kh1 Rh7 Nd2 e2 Rg4+ Ke3 Nb3+ Kf2 Bg5 e1B Qb1 f4 Be7 Bd2 Ra2 Rh8 h7 Bc1 Bcd1+ Ke1 Rc2 Nde2 Rc4 Nd4 Bd5 f3 Qa8 f2 c8N f1Q Qb6 Bf4 Qac6 Qe2 Bf3 Bc1 Bc2 Nf4 Bd1 Qe6 Bc2 Rg8 h8R Qf7 Rhh4 Rh8 Bd8 Rh6 Ne7 Qg8 Nf5 Re6 Be7 Qe4 Nh6 Qg6 Nf5 Qg5 Nd2 Qh6 Ba4 Qh5 Nb3
5b1K/1k1PN1Q1/4rP2/R4Bb1/P1NQ1QpR/n2q1N1n/b2B2p1/3Bq1R1 b - - 0 1 illegal: Other
1B4b1/1QbKNbQ1/1r3p2/2k3N1/2PRPRRp/1QB1p3/1Np4P/5qrB b - - 0 1 illegal: No proof kernel
r5k1/1n3RP1/2NP2r1/BQ3Rb1/B1nRb1b1/1bPQb2n/4B2K/N1q1QN2 b - - 0 1 illegal: No proof kernel
bN6/2b1rn2/nPrR3n/4Bkqr/N2QR1bN/1BPP4/1BKQ1r1Q/2R5 b - - 0 1 illegal: No proof kernel
2bB1b1R/Pk1B2NR/2NbrB2/3nQQ2/KQ6/2qP1q1P/b1R3rN/2nb4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 Kd7 a4 c5 d3 Kc7 Kd2 b5 Kc2 g5 Kb3 f5 a6 b4 d6+ Kc6 h6 g4 a5 f4 d7 g3 a7 f3 h7 f2 e6 g2 e7 c4+ Ka4 b3 e8Q b2 a6 c3 e5 c2 e6 Ba3 e7 Bd6 Qg4 Kc7 Ra2 Nf6 Na3 b1B Bg5 c1Q Qf5 Nc6 Nc4 Nb4 Ne5 Nfd5 Ngf3 g1B Nc6 Rg8 h8R Qc3 Rc2 Na2 Bf6 Nc1 Bh3 f1B Bg4 Rb8 a8Q Bgc5 a7 Be2 Rh7 Rb7 Qb8+ Kb6 Qeh5 Ba2 e8N Bd1 Ng7 Qf8 d8B+ Ka6 Qe5 Re7 Bd7 Re6 Qhf5 Ba3 Qb4 Qf7 Ne8 Rg2 Ng7 Bf8 h3 Qh5 Nh2 Qf3 Re1 Bd6 Re4 Bf8 Reh4 Bd6 Qa5+ Kb7 Rh8 Bf8 R4h7 Bad6 Qb4+
rq1qR3/QbN2r1n/q1N5/1q4b1/1BP1N3/R2R1P1k/1P2QnB1/1K3QBb b - - 0 1 illegal: No possible last move
qQq1R1k1/rn1r1NB1/4rbP1/BP3qR1/Bn1Q2b1/R1NP4/2Q1r3/N5K1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 f4 e5 Kf2 h5 b4 c5 d6 a5 b6 e4 b7 a4 d7 a3 f6 c4 f5 a2 Qc2 h4 Na3 c3 Bb5 h3 d3 h2 Bd2 Qe7 d8Q Qd7 Ne2 Ra6 Rhg1 h1Q Ba4 Nc6 b8Q Na5 b5 Ne7 g6+ Kg8 g7 Re6 g5 e3+ Kf1 Nd5 f7+ Kh7 g8R Nb4 f6 Bg7 f8B Nb7 f7 Bf6 Bg7 Qdd5 Re8 Qf5+ Qf4 Bd7 f8N+ Kg8 g6 Rh7 Qb8 Qc6 Rg5 Qce4 Nc1 e2+ Kg1 Qed5 Nb3 e1R+ Qf1 Bc8 Nb1 R1e2 Qf2 Qd8 Qc5 Qa5 Qd4 Qa8 Bh6 Rd7 Bg7 Qc5 Nh7+ Qf8 Qd1 c2 Nc3 c1Q Be1 Qf4 Qc2 Qf3 Rd5 Qf5 Ng5 Ra6 Nf7 Rae6 Rd1 a1R Re5 Qh3 Rg5 Qf5 Bd2 Ra3 Na1 Ra2 Bb3 Ra7 Ba4 Qd5 Rb1 Qf5 Rb3 R6e4 Nd5 Qf2+ Kh1 Rc7 Qdb2 Na2 Rd8 Bg4 Ra3 Qf5 Kg1 Rd7 Qd4 Re6 Ba5 Nb4 Nc3 Qe8 Rc8 Qd8 Bf8 Qc7 Re8 Qc8 Bg7+
2N1Br2/n1n1PbK1/1n3N2/1Q1nr2R/bB1b3Q/4k1NP/PB1q1RQ1/4R2q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Kg3 c5 Kh4 b5 Kg5 f5 Kg6 f4 e4 c4 d4 b4 h3 f3 h6 c3 a6 f2 e6 Kd6 h7 b3 e7 c2 e8Q b2 a7 Nc6 Qe2 Nf6 Nd2 b1B Bb2 c1Q Rh2 Nd7 Qf3 Rg8 h8R Bc2 Bb5 f1N Rh5 Ba4 Ne2 Ne3 Ng3 Nb6 Qg2 Qh1 Re1 Be6 Kh7 Rb8 a8N Na7 Bc6 g5 Bd7 Nbc8 Nb6 g4 Bc6 Bf7 e5+ Kc7 e6 Kd6 e7 Rg5 Bd7 Bg7 Nde4+ Kc7 Qh8 Re5 Nf6 Kd6 Be8 Qd7 Qe2 Qd8 Qb5 Qd7 Rf2 Ra8 Nf1 g3 Qg8 g2 Ng3 g1N Qh8 Kc7 d6+ Kb7 d5 Nf3 Qg8 Nd4 Qh8 Qd8 d7 Ne6 d6 Nd5 Qg8 Bh8 Qg4 Nec7 Qg5 Bg7 Qh4 Bh6 Kh8 Be3 Kg7 Bd4 Qa6+ Kc6 Qf1 Ncb5 Qg2 Qc7 d8Q+ Kc5 Qd7 Qd8 Qb7 Nbc7 d7 Rb8 Nc4 Ncb6 Nd6 Ra8 Nc8 Kc4 Qc6+ Kd3 Ra1 Ke3 Qb5 Na6 Rg1 Qc7 d8B Qc3 Bc7 Qd2 Bd6 Nac7 Bb4 Qc3 Nd6 Rd8 Nc8 Qd2 Bd7 Rh8 Be8 Rf8 Re1+
q1NN3b/3r2rb/bb1Q1Q1B/n1RPQ1r1/2B3R1/2Br1R2/k2NPP1K/4n3 b - - 0 1 illegal: No proof kernel
1r1Q2r1/pk6/1n2N2K/n5QR/r3R1P1/2N2P1B/P1Bqbb1N/BR2nbQ1 b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 g5 c4 g4 cxd5 g3 hxg3 Nd7 g4 Nb8 g5 Bd7 Ne2 Be6 Ng1 Bc8 Ke2 Kd7 Ke3 Kc7 Kf4 b5 g4 h5 d4 e6 g6 b4 f6 h4 Kg5 e5 g7 h3 d6+ Kc6 d7 b3 d5+ Kb7 c6+ Kc7 Bb2 h2 Nc3 e4 Nf3 e3 Bh3 e2 Rb1 e1N Ba1 Ne7 g8Q b2 f7 Ba6 d6+ Kb6 c7 Bf1 c8B Nbc6 Qg7 Rg8 Kh6 Nd5 Qc1 Be7 f8N Rb8 Qgg5 Na5 Ne6 Bf6 Ba6 Bd4 Bd3 Kb7 Bc2 Nb6 Qce3 Qc8 d8R Qd7 Re8 Be2 Rf1 h1B Nh2 Bg2 Rh1 Bgf1 f3 Qd8 Qg1 Bf2 Nf8 Qd7 Re4 Qd8 Ne6 Qd7 Rd1 b1R Rd5 Qd8 d7 Rb4 Rb5 Ra4 Rb1 Qe7 d8Q Qd6 Qf8 Qd1 Qfd8 Qd2 Bg2 Qd6 Qh4 Ba6 Qhg5 Bfb5 Nf1 Qd2 Rh5 Bd3 Nh2 Bf1 Bh3 Bad3 Nd1 Bde2 Nc3
1Q1R4/3Q1qQ1/nk1Pp2N/3Rq1BR/r1r2bB1/1PNbN3/2Pb4/rB3nK1 b - - 0 1 illegal: No proof kernel
Bq3r2/2B1nN1Q/Rrp3N1/3P3P/B2Q2Qq/4RPq1/Kn2bR2/b1kN2r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc3 b5 Kb2 e5 a4 g5 h4 b4 a6 e4 f6 e3 a5 g4 f7 c6 h6 b3 a7 g3 a6 g2 h5 e2 h7 e1Q Rh2 Bf5 Bb5 Qg5 Ba4 Bg4 Ra3 Nd7 Nf3 g1Q Ne5 Qh4 Bf4 Nc5 Nc3 Be7 f8N Qgg3 Nfg6 Rb8 a8R Be2 a7 Bf6 f3 Qh1 Qg1 Ne7 Nd1 Rb6 Rf2 Rf8 h8Q Q1h2 Qh7 Nd3+ Ka1 b2+ Ka2 b1R Nf7+ Kd7 d6 Ke6 d7 Kf5 d8Q Nb2 Bc7 Bg7 Nge5+ Kf4 d5 Rc1 Qd7 Bf6 Re8 Bh8 a8B Rb1 Nc3 Ke3 Ng6 Kd2 Nd1 Kc1 Qg4 Bc3 Bd8 Qb8 Bc7 Q2g3 Qd4 Nc4 Qg2 Ba1 Qh3 Nb2 Qhg4 Ng8 Ree3 Ne7 Bb5 Kc2 Ra6 Rc1 Nc3 Rg1 Ba4+ Kc1 Nd1
K3b3/2QnPQ2/2BBqNq1/B2n2RP/2k1pQ1N/RbqR2b1/6PN/2r2r2 b - - 0 1 illegal: No proof kernel
1BR1rBrb/1PRPp3/4nq1k/1Q3Nq1/4q3/K4Q1P/1Q2R1r1/1b1nNN1B b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 b4 Kf7 f4 c5 d4 g5 Kd2 Kg7 Kc2 a5 Kb2 a4 d6 g4 d7 c4 h6+ Kh7 b6 c3+ Ka3 c2 h3 g3 b5 g2 d5 Qc7 d8R Qb7 f6 Bf5 f7 Nd7 d6 Qe4 b7 Ndf6 b8Q Ra6 b6 Ne8 d7 Qe5 Rc8 Be6 f5 Qg7 f6 Ba2 Rh2 Qg6 Bf4 Bg7 f8B Qe4 f7 Nc7 Qf3 Ne6 Nd2 Ra8 Rc1 Bb1 b7 Bd4 Qe5 Nf6 Qb5 Nd5 Bb8 Rg8 Bd3 Bf6 Nf1 Ne3 Rc7 Kg6 h7 Nd1 h8Q Bc3 Qd4 Kh7 Qdb4 Bh8 Qb2 Kg6 Bc4 Kh7 Bd5 Kg6 Ne2 g1R Nf4+ Kh7 Nd3 R1g2 Ne1 Kg6 Ba7 Re8 Bb8 Qd3+ Kb4 a3 Bc6 a2 Rc8 Qd5 Ka3 Qe4 Rc7 Rd2 Re2 a1Q+ Qa2 Nd8 Rc8 Nc3 Qg3+ Qg4 Re3 Bf6 Bh1 Bd4 Bg7 Nd1 Qf3 Rg2 Re2 Qe4 Bh6 Bc3 Bg7 Be5 f8N+ Kg5 Ne6+ Kg6 Bh6 Bh8 Bf8 Qf6 Ng7 Ne6 Qab3 Kh6 Qb2 Nc3 Rd1 c1Q Rd5 Qcf4 Rdc5 Nd1 R5c7 Q4g5 Nf5+
1bR1BR2/b1N4p/1nn2P2/B4N1P/1Prq4/3Q2rR/bQ1QNbk1/K2b1B2 b - - 0 1 illegal: No possible last move
N1bBkrr1/2q5/r2n1N1N/bR4B1/5PPK/1QQ1R3/rQ1P1pBn/R2b4 b - - 0 1 illegal: No proof kernel
Nb5N/1R4nK/k1Pn1P2/rbp2QBB/1rB1Qr2/RRr5/q2PNQ2/b7 b - - 0 1 illegal: No proof kernel
nrR5/r3N2P/4Bn2/1Nn1Q3/kbRQ4/1B1b2BN/Pqp3P1/1r2QnKR b - - 0 1 illegal: No possible last move
5Rq1/Q1QbP2B/k5rR/BN5n/K1B1Qp2/bPb2NP1/3N2R1/1rn2n1n b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Kd7 Kd2 c5 Kc2 Kc7 Kb3 Kb6 e4 a5 e6 f5 e5 h5 d6 f4 g6 h4 d5 c4+ Ka4 h3 g3 c3 b3 c2 d7 h2 d6 Qh4 d8Q+ Kb7 b6 Be7 d7 Bd6 e7 Nc6 e8N Rh6 g7 Re6 Qe1 Rg6 e6 Ne5 e7 Ba3 Bd2 c1N Ra2 Nc4 Qc7+ Ka6 d8R Qh7 b7 Nf6 b8Q Nh5 Qe4 Qg8 Nd6 Bd7+ Nb5 Ne3 Bc4 Nf1 Rf8 Ra7 Nf3 Ra8 Rg1 h1N Rg2 Ra7 Qce5 Rc7 Rc2 Rc5 Qec7 Rd5 Be1 Rd2 Ra2 Rb2 Nbd2 Rb1 Rh2 Nf6 Rh7 Nh5 Rh6 Nh2 Nf1 Bb4 Rg2 Bd6 Bb4 Bc5 Ka3 a4 N1d2 Bd6 Bc5 Nf1 Kb4 a3 Ka4 a2 Bb4 a1B Ba5 Qh8 g8B Ba3 Bh7 Bc3 Rf7 Qg7 Rf8 Qg8 Qba7#
3R1B2/Q1k1p3/1NN4P/rB1R3Q/2bb1PQN/2BRr1PK/3qnbr1/n4r2 b - - 0 1 illegal: No proof kernel
nr1Q2B1/nQ1pN3/3B1Nbn/7N/1rRb1P1Q/3RnK1R/b4PBP/q3k3 b - - 0 1 legal: proof: g4 c5 d4 a5 dxc5 h5 gxh5 f5 b4 f4 bxa5 f3 exf3 Rh6 f4 Rh8 Ke2 Kf7 c4 Kf6 a4 Kf5 h6 Ke4 h7 g5 c6 e5 a6 b5 c7 b4 a5 b3 a7 b2 c5 g4 a6 g3 c6 g2 Ra3 Bb7 c8N Qf6 c7 Nc6 Rd3 Rb8 a8Q Na7 Rc3 Nh6 Qb3 Bg7 Rh3 Bd5 Ne7 Rb4 c8R Rd8 Rc7 Rdb8 h8Q Kd4 Nd2 b1B Rc2 e4 Ba3 e3 Ne4 Ba2 Rc3 Bf7 Kf3 Bg6 Bc4 e2 Bg8 Qe5 Nf6 e1N+ Kg3 Nc2 Kf3 Ne3 Rd3+ Kc5 Qh7 Qa1 Ne2 Kb5 Rc1 g1N+ Kg3 Nf3 Rc4 Ne5 Qb2 Rb3 Bd6 Rb4 Qb7+ Ka5 Qd4 Bh8 Qdb6+ Ka4 Qd8 Bg7 Rc7 N5c4 Kf3 Nb6 Ng3 Na8 Rc4 Bh8 Ngh5 Bg7 Ne8 Bc3 Qh8 Kb3 Qf6 Kc2 Qh4 Kc1 Nef6 Nf1 Re3 Kd2 Rd3+ Ke1 Qa5 Nc8 a7 Bd4 Qac7 Ne3 Qd8 Nab6 a8B Na7 Qbc7 Be8 Be4 Na8 Qb7 Bg6 Kg3 Bh7 Bg2 Bg6 Kf3
1K5b/1R5N/NQ1RQ1BP/2RqpBr1/1bnk1B1Q/1qnP1P2/2N3b1/b1r5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 g5 a4 b5 h4 e6 f6 g4 f3 b4 h6 g3 h7 b3 h5 g2 d3 c6 a6 b2 a5 Ra7 f7 Rb7 d6 Qe7 d7 Bh6 d8R Qc7+ Rd6 Qd7 f8Q Bd2 a7 Na6 a8N Bb4 Qb3 Ne7 Qf7 Nf5 Nc7 Rg8 h8Q Ne3 Na3 b1Q Nh3 g1B Nc2 Rg5+ Qf5 Qa2 Rb1 Qd8 Qb2 Qb3 h6 Bd7 Qf6 Rb8 Bg2 Rc8 Bd2 Bf2 Rhc1 Bg1 Qf7 Bf2 Qh5 Qg8 Qh4 Nc4+ Kf6+ e5 Ke7 Bd4 Bf4 Qd5 Qf7 Bg4 Qe6 Bf5 Kd7 Bg4 Nf2 Bh3 Ng4 Bdc3 Bf1 Bg2 Nf6 Bd4 Nh7 Bdc3 Na8 Nc7 a6 Nb5 a7 Bd4 Nc7 Bdc3 Qa2 Ba1 a8B Nc3 Bb7 Rg4 Qb2 Rg5 Na3 Kd4 Na6 c5 Bc6 Rb8 Kc7 Rc8+ Kb7 Rc7+ Kb8 Na5 Bb5 c4 Qhh3 Qa2 Qh2 Bc5 Qh5 Bh1 Bh2 Rb7+ Kc8 Rb6 Qc2 Ne4 Bg2 Rc6+ Kb8 Rc7 Bh3 Bg2 Rc6 Be7 Qb3 c3 Rc2 Bf6 Bf4 Bh8 Rd6 Rc6 Rcc1 c2 Qh4 Rc7 Be8 Qb2 Re1 c1B Bg6 Bd2 Bhf5 Rc2 Re2 Rc1 Qb5 Be1 Rc2 Bd2 Rc7 Nc4 Rc5 Ba5 Qb3 Nc3 Qb7 Qc2 Qc7 Qd1 Rb7 Qb3 Qb6 Bb4 Nc2+
1q3Q2/BbRb2q1/3PnpQ1/1Nrb2N1/R4b1B/2Q2R1P/2Nk3P/1K3Bnr b - - 0 1 illegal: No proof kernel
2bQ2KN/R2rP1p1/2nnQ1P1/4Br2/1P2bRbk/1q2B2B/1b2N1R1/5qQN b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 h5 f4 c5 fxe5 h4 dxc5 h3 Qd3 Ba6 Qxh3 Bb7 Qh7 Bc8 Kf2 Ke7 Kf3 f5 Kf4 a5 Kg5 d5 Kg6 a4 e4 f4 c4 f3 h4 d4 b4 f2 g4 d3 g5 a3 c6 a2 h5 d2 e6 d1B h6 Qd2 b6 Ra6 c5 Be2 b7 Bd1 c7 Qd8 e5 Be2 c6 Bd1 Be3 Be2 Nh3 Rb6 Rh2 Nf6 Nc3 Bd7 c8Q Na6 b8B Qc7 Rg2 Bg4 Ne2 Rb7 Qg8 Ra7 h7 Ne4 Qb7 Qd8 c7 Bc8 Qb6 Qd5 Qc5+ Nd6 Qd4 Bb7 c8R Qb3 Rc4 Bc8 Qd1 Rb7 Rf4 Rd7 Bc7 Nb8 Qd4 Ke8 e7 Nc6 Qe6 Rg8 Ng3 Rh8 Nh1 Rg8 Ng1 Rh8 Bd3 f1B Bf5 Bd3 Ne2 Be4 Qd1 Rg8 Qg1 Rh8 Re1 Rg8 h8N a1Q Kh7 Qab1 Rd1 Q1d3 Ra1 Qdd1 Nf7 Qf1 Ra7 Rh8+ Kg6 Rh3 Nh8 Rf3 Kh7 Rh3+ Kg8 Rh5 g6 Rg5 Qd5 Rh5 Be6 Rf5 Qd4 Nb5 Qc4 Rf7 Qd5 Bgf3 Bh3 Rf5 Qc4 Rd4 Qf7+ Kd7 Qc4 Bg4 Qf7 Rd2 Qc4 Rd5 Qd3 Ke6 e8Q+ Be7 Qd8 Rd7 Bcb6 Nd6 Bbd4 Bh4 Qb5 Be1 Qc5 Bc3 Qb5 Bb2 Qc4+ Bd5 Qb6 Ke7+ e6 Be4 Be5 Nb7 Bd6+ Kf6 e7 Kg5 Qd8 Kh4 Be5 Nd6 Qe6
2RRr3/1N1PNN2/1q2BBr1/2Qp3k/q7/2b1nQ1P/b2P1rbK/q3QR1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 Na6 axb5 Nc5 c4 Nb7 c5 Nd6 cxd6 Bg4 Ra5 Bf5 Ra1 Bc8 Kf2 a5 Kg3 g5 e4 f5 b4 Kf7 e6+ Kg7 h3 Kh6 d7 c5 b6 f4+ Kh2 f3 e5 a4 b5 c4 e7 a3 e8Q a2 e6 f2 e7 g4 b7 c3 b8N c2 b6 Ra6 b7 Qa5 Nf3 Rd6 Bg2 f1B Nc3 Rg6 Nc6 Rg5 b8Q Bd3 Qa7 Bf1 Ne4 Nf6 Nfe5 Bg7 Qf3 Bca6 Nc5 Bac4 Nb7 Qa4 Bb2 c1R Qc5 Rg6 Rb1 Re1 Rc1 a1Q Rg1 Rg8 Bh1 Bg2 Rf1 Rf8 Bd4 Kg5 h6 Kh5 h7 Ba2 Nf7 Re2 Bc3 Rf2 h8R+ Bh6 Qb8 Re8 Rf8 Be3 Qbg3 Bd4 Bb2 Bc3 Rc2 Re2 Qe1 Rf2 Rc1 Ng8 Rc2 Nh6 Rg8 Nf5 Rc1 Rb8 e8B Ne3 Ne7 Ra8 Ng5 Rd8 Bf7 Re8 Be6 Qb1 Qf8 Qa1 Nf7 g3+ Kg1 Ba5 Bf6 Bc3 Rc2 Bf3 Rc1 g2 Kh2 Re2 Ng5 Nd1 Qc8 Ba5 Be5 Rd8 Rc5 Bc3 Qc7 Be4 Qff2 Ra8 Bf6 Rb8 Kg3 g1Q+ Qg2 Qgd4 Kh2 Rf2 Nf7 Ne3 Qa5 Rd8 Rc8 Qb6 Qc5 Rf8 Rg7 Rh8 Rgg8 Bf3 Rgd8 Re8 Kg1 Be4 Qg3 Bg2 Kh2 Nf5 Qf4 Ne3 Qf3+
NBk2nB1/Q1Bq4/3b4/1b4pr/1NrP1NPb/Qb2P2q/RKQ1RR2/3b4 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 d5 fxe5 d4 h5 d3 cxd3 Nc6 d4 Nce7 d5 Ng6 hxg6 Bg7 Ra3 Bh6 Ra1 Bf8 g4 Kd7 b4 c5 d4 a5 Kd2 f5 Kc3 h5 e6+ Kc7 e7 f4 e8R c4 g7 a4 Ra2 h4 Na3 f3 Nc2 h3 Kb2 h2 Nh3 f2 Bf4+ Bd6 b6+ Kb7 b5 Rh5 e3 Be6 Rf8 Kc8 Nb4 Nf6 g8Q Nd7 Qc2 Qe8 Rg1 h1B Rg2 Ra6 Bd3 f1B Re2 Bf3 Bh7 Ra5 Rf5 Nf8 Qg7 Qd7 Bg8 Ra7 Qe7 Rc7 Bh2 Bg3 d6 Bh4 Nf4 c3+ Ka3 Kb8 b7 Bb3 Bg3 Rc4 Rf7 Ka7 b8B+ Kb7 b6 Kc8 Rf6 Qe6 Qa7 Qd7 b7+ Kd8 Qd1 c2 Kb2 c1B+ Kb1 a3 Qc2 Qf5 Bc7+ Kd7 b8N+ Kc8 N8a6 Qd7 Bb8 Bd2 Nc7 Be1 Na8 Bc3 Rh2 Bd1 Re2 Be1 Ra1 a2+ Kb2 Bg2 Qa3 Bc6 Rf5 Bb5 Rf6 Qe6 Bh2 Beg3 d7+ Kb7 d8Q Qd7 Qb6+ Kc8 Nfd3 Bf4 Qba7 Bd6 Rff2 Rc7 Nf4 Rc4 Rb1 a1Q+ Kc1 Qc3 Rb2 Qe1 Ra2 Qf1 Kb2 Qh3 Nfd5 Be7 Bhc7 Bd6 Nf4
B2bbk2/B7/qnRRP1n1/N1K5/N4np1/2P1Q1Pr/QR3N2/QbB1b2q b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 g5 a4 a5 axb5 e5 fxe5 g4 h4 Ra6 Qd5 Rg6 Qd1 Rg5 hxg5 Be7 Bd2 Bd6 Bc1 Bf8 Kf2 h5 Ke3 f5 Kd4 d5 b4 h4 e4 a4 b6 a3 c6 a2 g6 f4 b7 f3 c7 h3 g7 f2 g3 h2 e6 Na6 b8N Nf6 g8Q Nd7 b5 Nb4 e5 Rh3 e7 Nb6 Kc5 d4 Nc6 d3 Nc3 d2 Rb1 a1B Qa2 Bf5 c8R N4d5 Rb2 Nf4 Bg2 f1B Na4 Ng6 Na5 B1d3 Qf1 d1N Ba8 Nc3 Rc6 Ncd5 Rd6 Kf7 e8Q+ Kg7 Qe1 Ndf4 e6 Qb8 Qe3 Qa7 Qb8 Qb7 Qa7 Be7 Qa6 Kf8 c3 Bd8 Rc6 Bb1 Qa7 Rh8 Nh3 Qa6 Nf2 Rh3 Rd1 h1Q Rdd6 Bfe4 Rc7 Bc6 Rc8 Be8 Rcc6 Nbd5 Re2 Bb2 b6 Bh4 b7 Bd8 b8B Nb6 Kd4 Ba3 Rb2 Bb4 Rd7 Bbe7 Rdd6 Bg5 Kc5 Nfd5 Qe5 Bd2 Qe3 Ndf4 Qa1 Be1 Qa2 Qc8 Qa6 Qb7 Ba7 Qc8 Qa1 Qb7 Qc4 Qa6 Qca2
q3N1n1/1N2NpKb/BP2q3/3Qn3/2RqPPR1/q5Qr/1n2k2Q/1RBr1B2 b - - 0 1 legal: proof: b4 h5 d4 e5 dxe5 b5 c4 h4 cxb5 h3 a4 Be7 a5 Nc6 gxh3 Nb8 h4 Bc5 h5 Bb6 axb6 Qh4 Qd6 Qf6 Qd1 Qd8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 c5 h6 g5 h5 a4 b7 g4 b6 a3 h7 c4 b5 d6 h6 a2 Rh4 c3 Nf3 c2 Nfd2 g3 Nc3 g2 Na4 g1N Nc5+ Ke7 e6 Kf6 e7 Kg5 e8B d5+ Ke5 d4 e4 d3 Rg4+ Kh5 Bg2 Bd7 Rb1 Ne2 Nc4 d2 Nd6 Bf5 f4 Ne7 Kf6 Qc8 Kg7 Nd7 b8Q Nc3 b7 a1Q b6 Ne5 Bb5 Qe6 Ne8 Na4 Ba6 Ng8 Qc7 Bg6 b8R Nb2 Rc8 Qa4 Qe1 d1Q Nb7 Qdd4 Qc4 Qa1 Rc7 Rd8 Qd5 Qa5 Rc4 Bf5 Be3 c1Q Qg3 Qcc3 Bc1 Qca3 Bb5 Qa8 Ba6 Qdc5 Qc6 Rd1 Qd5 Nf6 Bb5 Qd4 Ba6 Rf8 h8N Bh7 Ng6 Ng8 Ned6 Rc8 Ne7 Rc6 Ne8 Rc5 Rb4 Rc3 Rc4 Rf3 Qh2+ Rh3 Qg3 Bg6 h7 Bf5 h8Q+ Bh7 Qe1 Rh1 Rg3 Kh4 Rb3+ Kg4 Rh3 Bf5 Qh6 Bh7 Qc3 Qd3 Rh4+ Kg3 Rg4+ Kf2 Qh3 Qd4 Qcg3+ Ke2 Qhh4 Rh3 Qh2 Qa7 Q4g3 Qa8 Bf1+
3rrrb1/2PrR2P/1N2pRQ1/1B1B3r/1B2qnn1/5Q1Q/r2RP2k/NN3K2 b - - 0 1 illegal: No possible last move, all moves rejected
2q3bK/R2n2nP/1kpQN3/3P4/BQ1brQn1/1P1bNB2/p2rRN1R/B7 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 f5 Kf4 a5 d4 a4 h4 g6 e4 a3 d6 Ba6 e6+ Kc8 Ke5 Kb7 h6 f4 h5 g5 b3 g4 e7 g3 e8B f3 b6 f2 d7 g2 h7 Be2 h6 Ra4 Nd2 Be7 Nh3 g1N Bg2 f1B Bb2 Rc4 Nf2 Rc1 Nc4 Bc5 Ne3 Bc4 Rh2 Bcd3 Bf3 Kc6 b7 Ne7 Kf6 Na6 Kg7 Nb8 e5+ Kb5 e6 Qc8 d8N+ Kb6 Ba4 Re8 h8Q c6 h7 Nd7 Qf8 Nh3 Kh8 Nf5 e7 Ng7 Ne6 Rc2 d5 Rd2 Qc1 Bd4 Ra2 Bf5 Ba1 B1d3 Qe1 Bg6 Qf1 Bf7 b8Q+ Ka6 Qb4 Bg8 Qd6 Kb6 Qff4 Bf6 Qe1 Bd4 Rc2 a2 Rc4 Rf8 e8R Rf5 Rc2 Re5 Re7 Re4 Rf7 Nf8 Ra7 Nd7 Nh1 Nf2 Rb2 Ng4 Nf2 Rd1 Re2 Rd2 Nc7 Rc2 Ne6 Rb2 Qc3 Rd2 Qcb4+
6n1/1R1pN1Q1/bq6/5nBK/BpQ1RQrR/2BrNP1P/1b1P2b1/3knN2 b - - 0 1 illegal: No proof kernel
2qb4/k1P1nn2/rbB1R1BB/PNp1N1Q1/Kp1rb3/3QNQ2/P7/1r1R3R b - - 0 1 illegal: No proof kernel
4RR2/2r2rn1/rQ2PPQQ/B2pb1p1/3N1kb1/1Bq5/1N1B2KP/qRn2N2 b - - 0 1 illegal: No proof kernel
kB1NQ2r/3R2qn/1PNRp3/Q2q1B2/n1Bp2bR/3PPN1Q/r2n4/1b2K3 b - - 0 1 legal: proof: b4 c5 bxc5 g5 g4 b5 h4 b4 hxg5 e6 f4 b3 a4 b2 f5 Ke7 g6 Bg7 g5 Ke8 f6 Qa5 fxg7 Qb5 Na3 b1Q axb5 Qb2 Nb1 Qf6 Ra3 Qe7 Ra1 Qd8 c4 h5 c6 a5 c7 f5 c5 d5 b6 Kd7 c6+ Kd6 Qa4 f4 Nh3 Ba6 c8R f3 c7 Nf6 g8B h4 g7 d4 g6 Nc6 Bh7 Bd3 g8Q Nb4 g7 Na6 Ng5 h3 Bf5 h2 Qh7 Nc5 Qh3 Nh7 g8Q Ra7 Qb5 a4 Qa5 Kc6 Nf7 Kb7 Qe8 Qd5 Rd8 a3 c8N a2 Ne7 Na4 Rd6 Be4 Nd8+ Ka8 Nec6 f2+ Kd1 Ra6 e3 Ra7 Bc4 f1N Ba3 Bf3+ Ke1 Bg4 d3 Nd2 Rf1 h1B Rf4 Bhf3 Bb4 Bd1 Bc5 Bc2 Re4 Nb3 Nd2 Bb1 Nf3 Nd2 Rf4 Bc2 Rc1 a1Q Rd7 Bb1 Bd6 Qa3 Bb8 Qe7 Rc2 Bh5 Rh4 Qg7 Rb2 Bg4 Rb5 Qd6 Rd5 Qc5 R5d6 Qd5 Rf7 Nb2 Qb4 Ra2 Rfd7 Na4 Qa5+
N5Q1/b3pNPQ/2BpP2K/rR2qR2/3R1QPn/3bn3/BB3qN1/b1k1r3 b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nf6 f4 Ng8 fxg5 Bg7 g4 Qb6 h4 Qe6 h5 Qg6 hxg6 Bf8 Kd2 a5 Ke3 h5 Kf4 f5 e4 a4 b4 h4 c4 h3 c6 h2 c5 a3 c7 a2 c6 Rh7 b6 Nh6 b7 Ng8 b5 Rf7 b6 Ra4 g7 Na6 b8R Rd4 b7 Rd6 e5 Rff6 e6 Nb4 g6 Nd5+ Kg5 f4 Nh3 f3 Nd2 f2 Bb2 Ne3 Bc4 f1Q Bc3 Nh6 g8Q Qf2 Nf1 Nhf5 Qc2 Rd5 Rd1 a1B Rd4 Ra5 Ba2 Nh4+ Qf5 Rf7 Kh5 Rf6 Ng5 d6 Qh7 Bh6 g7 Rf8 Qf4 Rff5 Rg1 h1Q Rg3 Qd5 Rf3 Nhg2 Kg6 Re5 Nf7 Bg5 Kh5 Bf6+ Kh6 Nh4 Qg3 Qc5 Rf5 Re4 Qf4 Qe5 Nd8 Bd7 c8B Bg5+ Kh5 Bf6 c7 Bb5 Nf7 Bd3 Kh6 Qd5 Ra4 Bd4 Rb4 Ba7 Rd4 Neg2 Ne3 Qe5 Nc2 Re2 Ne1 Ne3 Ng2 Re1 Ra8 Bc5 b8Q Bb6 Ra6 Bc5 Qa8 Ba7 Bb7+ Bb8 c8N Ba7 Nh8 Kd8 Nb6+ Kc7 Qf8 Bc2 Nf7 Bd3 Bc8 Kc6 Bd7+ Kc5 Na8 Nc2 Qfg8 Ne3 Rc6+ Kb5 Bb4 Ka4 Bc3+ Ka3 Rc5 Rc1 Bc6 Re1 Bb1 Kb3 Ba2+ Kc2 Rb5 Kc1 Bb2+
1Q1b1rRN/6KB/2R2r2/2pP2kP/3Q3N/1B4b1/RnQp1bPq/nb4BN b - - 0 1 illegal: No proof kernel
r4k2/b2QR2P/B1rP1p1p/5bnq/RN1B1QN1/2r1Bnr1/1K1PR2Q/5N2 b - - 0 1 illegal: No proof kernel
K1n5/NQ1pQ1Rb/PbP1br2/1B2Bb2/nNp5/1Q4N1/1q1kPr2/RB3R2 b - - 0 1 illegal: No proof kernel
RNN5/1r1n1r2/3NppR1/1n3P2/1q1QP2B/k1n1P1Qq/B2Q4/KR1rBb2 b - - 0 2 legal: proof: b4 h5 g4 c5 gxh5 b5 bxc5 b4 e4 e6 a3 Be7 axb4 Bg5 b5 Be3 dxe3 Qe7 Na3 Qh4 Nb1 Qd8 Kd2 Ke7 Kc3 g5 Kb2 d5 f4 a5 c4 a4 h4 g4 f5 g3 b6 d4 c6 Kd6 b7 Kc5 c7 Kb4 c5 d3 c6 g2 h6 d2 h7 Nh6 h5 Qd3 Nc3 Qe2 Nb5 Nd7 b8Q Qf2 Ne2 g1R Rb1 a3+ Ka1+ Kc4 Nd6+ Kc5 Nd4 a2 Bc4 Ba6 c8N Qe1 c7 Rf8 h8Q Ra7 Nc6 Rb7 Rh4 Qf1 Rg4 Qh3 Rg6 Re1 Qc2 d1N Bd2 Nc3 Qb2 Rd1 Be1 Bb5 Qd2 Ba6 Bd5 Bf1 Qf6 Rg8 Qe5 Rg7 Qg3 Rh7 Qa8 Rg7 Nb8 Rh7 Bb3 Kb4 Qa7 Rg7 Qad4+ Ka3 Nb6 Rh7 c8R Rg7 Na6 Rh7 Ra8 Rg7 Nbc8 f6 Nb8+ Ba6 Bd5 Nf7 h6 Rh7 Na7 Rg7 h7 Bf1 h8B Rh7 Ndc8 Nd6 Bg7 Ndb5 Bh6 Rg7 Nd6 Rf7 Nac8+ Ra7 Bg5 Qg2 Bh4 Qh3 Na6 Rb7 Bc4 Ka4 Kb2 a1Q+ Kc2 Qa3 Ba2+ Qb4 Nb8+ Na7 Rg8 Ka3 Rg7 Qa5 Rg6 Nab5 Rc1 Na4 Kb1 Nac3+ Ka1 Qa4 Rb1 Qa5 Na6 Qb4 Nb8+
BB2rN2/2bp2Nk/4PbQ1/3R1qqB/Kpq1N1Q1/nP4RR/2nP3n/1Q6 b - - 1 2 illegal: No possible last move
Q1B3Q1/rn1R2NP/qb1pN1p1/4Q3/1P1bB2K/r5P1/2R2BR1/1qqNkb2 b - - 0 1 illegal: No proof kernel
2rkq1NB/nNqnn1QR/B4R2/p3b1R1/P2B1Qp1/P1P5/2Qn4/1N3bK1 b - - 0 1 legal: proof: d4 b5 a4 a5 g4 f5 e4 c5 exf5 h5 gxh5 Ra6 dxc5 Rg6 Qd2 Rg3 Qd1 Ra3 bxa3 Bb7 Ra2 Ba6 Ra1 Bc8 h4 g5 f4 d5 Kf2 e5 c3 d4 h6 b4 h7 e4 c6 b3 h5 b2 f6 d3 f5 d2 f7+ Ke7 f6+ Kd6 c7 Kd7 h6 Qe8 Qc2 d1Q Ba6 Qd4+ Be3 Qc4 Ne2 Qee6 Ng3 Ne7 Nh5 Nbc6 Bd4 e3+ Kg1 Bg7 f8Q e2 f7 e1N Rh2 Rg8 h8B Be5 h7 Na7 Qh6 Qc5 f8R Nd3 Rf6 g4 Qf4 Bb7 c8N Kd8 Nd6 Bg2 Ra2 Bf1 Nb7+ Ke8 Rg6 Qc7 Rg5 Nc5 Rh3 Kd7 Nf6+ Kc8 Rhh5 Nd7 Rh6 Rd8 Ng8 Qf7 Rf6 Qe8 Bg7 Nd5 h8Q Ne7 Nd2 b1N Qhh7 Qc6 Bh8 Kc7 Qg7 Rc8 Nf3 Nd2 Rb2 Nb3 Nd2 Qb6 Nb1 Nd2 Rh6 Qc6 Rb6 Qc5 Rbf6 Qc4 Nd6 Kd8 Rh7 Qc7 Nb7+
Q5rN/5BpR/1k1b2n1/P1qq1Q2/3nNRPn/1pQ3nN/1P5R/BnB1K3 b - - 0 1 illegal: Other
N4q1R/n3B2Q/B6P/1Q4pB/1N1Rb2p/Knk5/1NprPRPQ/1b3nr1 b - - 0 1 illegal: Other
3b1r2/1RPNpB1K/2P1p1QN/2RQ1nrp/2BP3N/Bn1b4/4R3/1Qqr3k b - - 0 1 illegal: Other
b2r1k2/p3P2K/6Q1/1B2B1Nn/n2RBRP1/1qbP1pN1/1R1Q1p2/Qb2N1r1 b - - 0 1 illegal: Other
3KBQr1/p3n2p/3p4/QN2Nk1q/RP4rP/bPR2b1r/5RBq/N1Q1B3 b - - 0 1 legal: proof: e4 f5 exf5 c5 d4 b5 dxc5 b4 a3 Qb6 axb4 Qd8 f4 Nc6 g4 Rb8 f6 Kf7 g5 Ke6 f5+ Ke5 Qh5 Kd5 g6 Ne5 Qg4 Nf7 gxf7 Kc6 Qd1 Ra8 Kd2 Kd5 Kd3 Ke5 Kc4 g5 Kb5 g4 c4 g3 h4 g2 c6 e6 c7 Bc5 f8Q Bb7 c8B Ne7 f7 Bf2 f6 Nc6 c5 Rg8 b3 Ne7 c6 Rg7 c7 Rb8 Ra4 Be1 Na3 Bc3 Bd2 Ng6 Qc5+ Ke4 f8R e5 f7 Nf4 Rh3 Bb2 Qdc1 Qg5 Nf3 g1Q Bg2 Qh2 Be1 Ng6 Nc2 Ba3 Na1 Qh5 Qb6 Kf5 Qa5 e4 Ne5 Ne7 Rc3 e3 Kc5 e2 Kd6 Bc6 Ba6 Rb7 c8N Rg4 Bb5 Rb8 Kc7 Bf3 Kd8 Ra8 Bg3 e1R Bf2 Rh1 Be1 Rb8 Bc6 Rb6 Bb5 Rbg6 Nd6+ Kf6 Bc6 Rg8 Nb5 d6 Be8 Kf5 Bf1 Rhg1 Bh3 Rg3 Bg2 R8g6 Rg8 Rh3 f8Q+ Ke6 Rg7 R6g5 Rf7 Rg8 Rf4 Bc6 Rf2 Bf3 Qg7 Kf5 Qf8+
Qr1N4/1bP1ppk1/B1r3q1/Pp1N1Bn1/1R3R2/4r3/2NQPR2/Q1bKB1q1 b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 g5 fxg5 a4 h4 a3 bxa3 Qb6 a4 Qc7 a5 Qd8 g4 Nf6 g6 Qc7 g5 Ng8 g7 Qd8 h5 Nc6 Bg2 Ne5 Bf1 Ng6 hxg6 Ra7 Rh6 Ra6 Rh1 Ra8 c4 b5 a4 h5 c6 d5 c7 h4 c5 d4 c6 h3 a6 h2 a7 d3 a5 Bh3 c8B Be6 c7 Nh6 g8R Qd4 g7 Qe4 g6 Qd4 Nf3 Nf5 Na3 Qe4 Bh3 Bd5 Bd2 Qe6 Rf1 h1Q Ng5 Qf3 Nc2 Qd6 Ra4 Rh6 Qa1 Qe4 Rf2 Qh2 Ne6 Rb8 a8Q Nh4 Ba6 Nf3+ Kd1 Ng5 Be1 d2 Nd8 Bb7 Bf5 Qg1 Rb4 Rh3 Rh8 Re3 g8N Bh6 Rf4 Kf8 Nf6+ Kg7 Nd5+ Qd4 Rf2 Qf6 Rh7+ Kg8 g7 Qg6 Rff4 Qf1 Nd4 Rd3 Rg4 Nf3 Kc2 d1R Re4 Bf4 Rh2 Qfg1 Rf2 Be3 Rf4 Ng5 Rh4 Rb3 Rhf4 Rd2+ Kc1 Rc2+ Kd1 Rcc3 Qa2 Bc1 Qd2 Rc6 Nc2 Kh7 g8Q+ Kh6 Qe8 Re3 Qh8+ Nh7 Qf6 Ng5 Qfc3 Kh7 Qa3 Kg7 Qa1+
2q2rN1/Q1PnP3/3k2BB/2Q1brpn/1p2r3/1Rr2NPp/BR2R3/Q2K2N1 b - - 0 1 legal: proof: f4 e5 fxe5 c5 b4 g5 d4 a5 dxc5 b6 bxa5 Bb7 h4 Be4 h5 Bg6 hxg6 Qe7 Rh6 Qf6 Rh1 Qd8 a4 Ke7 c4 f5 e4 h5 g7 d5 g3 b5 c6 d4 e6 f4 a6 h4 e5 d3 c7 h3 c8Q f3 a5 b4 a7 Qd7 a6 Nh6 c5 Qc7 c6 Rh7 Ra2 Nf5 Re2 Nh6 Bb2 Qd6 Nd2 Rh8 Qa1 f2+ Kd1 Nf7 Ndf3 d2 Rh2 Qd8 g8N+ Ke8 c7 Nd6 e7 Rh4 Qf5 Qc8 Qc2 Kd7 e8B+ Ke6 Qc5 Re4 Bg6 Nd7 Rg2 Rb8 a8Q Nf5 a7 Bg7 Qb7 Bh8 a8R Ng7 Ra3 Nh5 Rb3 Bg7 Qba7 Rb5 Kc2 d1R Rh2 Rb1 Bd4 Rb2+ Kd1 Rc2 Rg2 Rc3 Reb2 Rb6 Bd3 Rb7 Bb1 Rb8 Ba2 f1R+ Kd2 Ra8 Re2 Rf2 Kd1 Bf6 Qcb6+ Kd5 e6 Be5 e7 Rb8 Qc5+ Ke6 Nh2 Rf5 Nhf3 Ra8 Qca5 Kd6 Qb5 Bf4 Bg7 Be5 Qc4 Qa6 Bh6 Raf8 Qb5 Qc8 Qbc5+
3QQR1B/1pp1PQ2/3rN2P/1PRqbr1B/1KRN1p2/B2b3n/2b3bN/4k3 b - - 0 1 illegal: No proof kernel
1b2b2R/2Qp3N/p2P1K1k/P1RB4/qN2QN2/qr1R3p/2QBb2P/1Bq2n2 b - - 1 3 legal: proof: c4 c5 e4 f5 exf5 b5 f4 a6 b4 Nf6 bxc5 b4 g4 Ng8 g5 Ra7 f6 Rb7 f5 Rb5 cxb5 Nc6 g6 Ne5 Be2 Nf7 Bc4 Qa5 gxf7+ Kd8 Bf1 Kc7 Qa4 Kb7 Qc2 Qd8 Qd1 Kc7 Ke2 h5 Kd3 g5 Kd4 e6 Ke5 h4 d4 h3 a4 g4 b6+ Kc6 b7 b3 b8Q b2 a5 g3 Nc3 b1B Bd2 g2 Bd3 Bb7 Na2 Ne7 Qc2 Nd5 Ne2 g1Q Nf4 Qc1 Rd1 Ne3 Qa8 Qa3 d5+ Kc7 c6 Nf1 Nb4 Ba2 Rac1 Bd6+ Ke4 e5 f8R Bb1 f7 Qh4 f6 Rg8 Kf5 e4 Qa7 Rg3 Rh8 e3 f8Q e2 f7 e1Q Qfa8 Re3 Be4 Rb3 f8N Be5 Kg6 Kd6 c7 Ke7 c8B Bb8 d6+ Ke8 Bf5 Bf3 Qac7 Be2 Bb7 Qg4+ Kf6 Qgh4+ Ke5 Kf7 Bd5+ Kg7 Nh7 Kh6 Qac6 Ba2 Qe4 Bb1 Rc5 Bbd3 Bg6 Bh5 Bf5 Be8 Bg6 Qg4 Kf6 Qe3 Qa4 Qc1 Qa2 Be2 Qac2 Qa3 Be1 Qec1 Rd3 Qa4 Bd2 Qf3 Bg8 Rb2 Ba2 Rb3 Bf7 Qg3 Bb1 Qe3 Bd5 Qca3 Bc3 Qec1 Bd2
1NB1Q2K/1q2R2N/2NPRBQb/1r3p2/1P2ppR1/Qp1r4/1n2Pkn1/B3r3 b - - 0 1 illegal: Other
1r1Bb1B1/Q6p/pQ1q2p1/pRr4N/b6P/1n2RRB1/P1bP3K/2k1NNQ1 b - - 0 2 illegal: Other
5kr1/RQQpNP1n/1p2R3/1n3pP1/KB1b4/1Q2bBN1/1p1PB2R/2N2br1 b - - 0 1 illegal: Other
n1rBB2q/3b4/2Rr4/N3P1bQ/2K1Q1rk/1pp3NN/nPPQR1R1/1r1n3B b - - 0 1 illegal: No proof kernel
n1N5/KBpr1pn1/2br1P2/1RBp1R2/3PQQNq/2qR1P1k/1r2Q3/1N2b2B b - - 0 1 illegal: No proof kernel
Nrq5/3n2p1/qR2kpPQ/2Q3Rr/4pB2/B3PQq1/1bnNNPBb/2RK4 b - - 2 3 illegal: No proof kernel
2B2K1N/1bR5/p1BPrb1B/Pn2q3/3Q1NRk/pp4b1/1PN3b1/1Q1nQRr1 b - - 0 1 illegal: Other
4k1b1/R2Q3r/1qN3p1/N1pRK1b1/2P2QPn/P2pb1B1/BrR2nN1/2B1b2Q b - - 0 1 illegal: No proof kernel
1Brr4/1NpBN1bB/5RN1/1b2Pb1R/1qnppQ2/2QP4/1kP1K1Qb/1n2R3 b - - 0 1 illegal: No proof kernel
Q4B1n/1NN4B/p4p2/r2Np1Br/1bPpb1pn/3Q1RP1/1K1RPRqQ/7k b - - 0 1 illegal: No possible last move, all moves rejected
RK1b4/1P1NB3/B2R2Rq/Nq5P/5N1n/q1k1p2n/Br1RQ1P1/2R4n b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 h5 cxd5 b5 a4 g5 axb5 g4 f3 Na6 fxg4 Nb8 Kf2 a5 Qe2 h4 Ke1 Ra6 Qf3 Rah6 Qd1 Rh5 gxh5 Ba6 b6 Be2 h3 Bg4 hxg4 Bg7 Ra2 Bh6 Ra1 Bf8 Ke2 Kf7 Kf3 Kf6 Ke4 c5 d4 e5 b4 c4 d6 h3 Kd5 c3 b7 e4 g5+ Kf7 b5 e3 f6 h2 g6+ Ke8 b6 Kd7 g7 c2 f7 a4 Ba3 c1N Ba6 Ne2 Nh3 Qf6 Nd2 Ng3 Qe2 Qh6 Rhc1 h1Q Nc4 Qf1 Na5 Be7 f8R Nc6 Ra8 Nh1 Nf4 Nf6+ Kc5 Rg8 d5 Rb8 g8B Ne5 Ra2 Nh7 Rd2 Bd8 Bb4 Ke8 d7+ Ke7 d6+ Kf6 Ba2 Ng6 Kc6 Ke5 Bc5 a3 Bb4 Bg5 Kc7 Nh4 d8R Bf6 d7 Ng5 Rf8 Nh3 d8R Ke4 R8d6 Bd8+ Kd7 Ke5 Rg8 Ke4 Rgg6 Ke5 Bf7 a2 Bc5 a1Q Ba2 Qb2 Bb4 Qa3 Bc5 Rc8 b8N Ke4 Bb4 Rc2 b7 Rb2 Kc8 Ke5 Nd7+ Ke4 Nd3 Qf5 Kb8 Qb5 Rb6 Kd4 Be7 Rc2 Nf4+ Kc3 Rb1 Rb2 Rbd6 Ng3 Rf1 Nh1 Rc1+
3R1K2/1B2N1RN/N1pn4/2r2b2/1P1PpB1n/1q1NP1k1/1BQ4b/1NR2b2 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 d5 f4 g5 fxg5 b5 c4 a4 cxd5 Bg7 Qxa4 Bd4 Qd1 Ra6 a4 Ra7 axb5 Bg7 Rxa7 Bh6 Ra1 Bf8 Kf2 Kd7 Kf3 Kd6 Ke4 e5 h4 c6 b6 f6 b7 Ne7 h6 Nd7 b8N Rh7 h5 Bg7 g6 Bb7 Qc2 Ba6 Nf3 Ng8 Kf5 e4 Ne5 Bf8 g7 Nc5 Kg6 f5 Kf7 f4 Nd3 f3 Rg1 Bc8 Na6 Rh8 h7 f2 h6 Ne7 g8N Nb3 Rg7 Nc5 Nf6 Rg8 h8N Nf5 h7 Nb3 Ng6 Nc5 h8B Nh4 Ne7 Nb7 Nh7 Bf5 Bh3 f1B e3 Qa5 Bb2 Qa4 Bf6 Kd7 d6 Qa3 Bg5 Qb3+ Nd5 Be7 Bg4 Rb8 Bh3 Bd8 Kf8+ Ke6 d7 Bc7+ d8R Nd6 Ne7 Ra8 Rg8 Rb8 Bb2 Rb5 Rg7 Rd5 Na3 Rc5 Rc1 Nc8 Nb1 Bh2 Nf2 Nd6 d4 Bg4 Ng8 Kf5 Nd3 Be2 Bf1 Bh3 Ne7+ Kg4 Qd1 Kf3 Qc2 Bf5 Bh3 Kg3 Bg4 Bg6 Bc8 Bf5 Bb7 Bf1 Bf4+
b7/Rb3Bk1/NbR2Br1/1P1b4/1n2Rb1q/1Bb2NB1/2BP1N1P/Q1b2K2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 b4 c4 Nd7 cxd5 Nb8 b3 a5 Kf2 Nd7 Ke1 Rb8 Kf2 Rb5 Ke1 Nc5 axb5 a4 Bb2 a3 Bc1 Na4 bxa4 Bd6 Bg2 Bc5 Bf1 Bf8 e4 c5 h6 f5 a5 Kf7 e6+ Kf6 a6 g5 e5+ Kg6 e7 g4 e8N c4 h7 f4 d6 c3 e6 a2 e7 b3 d7 c2 a7 g3 a8B b2 Bc4 f3 Kf1 f2 Bb3 Bh6 Nf3 Bf4 Nc7 Kg7 e8B Bb7 Nc3 b1B Bb2 c1B Ne4+ Nf6 Bef7 Rg8 h8R Bc2 Ba3 Nd5 Rh4 Nb4 Na6 Qe7 Rh6 Qh4 d8B Bb1 Rc6 g2+ Ke2 Bc2 Re1 g1B Kf1 Bd3+ Re2 Bc4 Bc7 Bd5 Bb2+ Kh7 Bf6 Rg6 Ng3 Kh6 Re4 Kh7 Nh1 Kh6 Rb1 a1B Bb8 Bc3 Ra1 Be3 Bg3 Bf4 Nb8 Kh7 Ra7 Kh6 Na6 Kh7 Ke2 f1B+ Ke1 Bb6 Nf2 Bg2 Bc2 Bh1 Kf1 B1b2 Qa1 Bc1 Rc5 Bc8 Bc6 Bb7 Bd7 Ba8 Bde6 Bdb7 Rc6 Kh6 Beb3 Kh7 Ng5+ Kh6 Rd4 Bd5 Nf3 Kh7 Re4 Kh6 Be7 Kg7 Bf6+
1bBr3q/1K2nk2/NRp3nN/5PBP/3r2P1/1N4B1/B2qb3/1RBqRQ2 b - - 0 1 legal: proof: e4 f5 exf5 b5 f4 g5 fxg5 d5 a4 h5 axb5 d4 Qxh5+ Kd7 Qh7 d3 cxd3 Ke8 d4 Bh6 d5 Bf8 Ke2 e5 Ra6 e4 Ke3 Nd7 Kd4 e3 h4 e2 g4 e1Q b6 c6 b4 Be7 g6 Qe2 g7 Bb7 d6 Nh6 h5 Nb8 Kc5 Qd1 g8B Nf7 d4 Bc8 b5 Bf8 b7 Qd7 b6 Bh6 d5 Ng5 Nh3 Bg7 Nf4 Nf7 Nd2 Ba1 Ng6 Nd8 Qh6 Bg7 Qf4 Bf8 Ne7 Bg7 Rg1 Qc7 d7+ Kf8 d6 Nf7 d8N Nh6 d7 Be5 Be2 Kg7 Ne6+ Kf6 d8B Qd7 Bf7 Ng8 Re1 Rh7 Ra1 a5 Ba6 a4 Rb1 a3 Qf1 a2 Nc7 a1Q Ba2 Bg3 Nb3 Q7d2 Ned5+ Kg7 Bg5 Rh8 Nf6 Kf7 Qf4 Ne7 Qf1 Rf8 Ng8 Qh8 Re4 Be5 Re1 Bd4+ Kd6 Nd7 b8B Ne5 b7 Ba1+ Kc5 Rd8 Kb6 Rd6 Bc4+ Be6 Na6 N5g6 Bd5 Rd7 Bg3 Rad8 b8R Be5 Bc4 Rd3 Ka7 Bc7 Rb6 Bb8+ Kb7 R3d4 Bd5 Kf8 Bc4 Bf7 Be6 Kg7 Bc8 Bc4 Bh6+ Kf7 Bg5 Be2 Nh6+
N1b2N2/1r2BQ1P/2kB3R/qr1Bn2R/3R1P1P/2b1n3/1p2b3/NKR2b1R b - - 0 1 illegal: No proof kernel
R1n1N3/1b2N2N/3Nn1bq/R2B3Q/1B2PR2/4P1rn/2P2Bpk/KNq4b b - - 0 1 legal: proof: d4 b5 a4 e5 axb5 c5 dxc5 g5 f3 e4 fxe4 f5 g3 a5 g4 f4 h3 Bh6 h4 Ra6 Qd2 Rf6 Qd1 Rf5 gxf5 g4 Bg2 Ke7 Bf1 Bg5 hxg5 Ke8 Kd2 Ke7 Kc3 d5 b4 h5 Kb2 h4 c6 Kd6 g6 Ke5 f6 h3 f7 h2 f8R g3 b6 g2 b5 d4 c7 f3 b7 f2 b6 a4 g7 a3+ Ka2 d3 Be3 d2 Nh3 Qd6 Rf4 Nc6 b8N Nd8 b7 Qh6 Na6 Ne6 b8B Bb7 Ng5 Ne7 g8N Nc8 Ne7 Rg8 Nh7 Rg3 Rg1 h1B Bba7 Bc6 Bac5 Be8 Bb4 Bg6 Qc1 Na7 c8N d1N Nd6 Nc8 Qd2 Na7 Nc7 Nc8 Kb3 a2 Nce8 Nc3 Kb2 Nd5 Rh4 Ndf4 Qd1 Nh3 Ba7 Qe3 Rh5+ Kf4 Ra5 Kg4 Qd5 Qh6 Qh5+ Kf4 Bb8 Rg5 e3+ Kg3 Bc4 f1B Bd5 Ba6 Rf1 Bb7 Rf4 Kh2 Be1 Ng7 Bf2 Rg3 Ba7 Ne6 Bc5 Nf8 Bb4 Ne6 Nd2 Bf7 Rc1 Bg6 Nb1 Ba8 Rd1 Bc6 Rd3 Bb7 Rda3 a1Q+ Kb3 Qd4 Ka2 Qd1 Ka1 Qe1 Ra8 Qc1 R3a5
4R1Q1/qq1P3b/k1N1P1N1/2B2q1B/3Rr1RB/6P1/1r1pqnR1/K1R3qN b - - 0 1 legal: proof: h4 d5 f4 e5 fxe5 g5 hxg5 b5 a4 d4 axb5 Be7 c3 Bf8 Na3 c5 Nf3 c4 Nb1 Bb4 Ng1 Nc6 Ra4 d3 Ra1 Nd4 cxd4 c3 Nf3 c2 Ng1 Bc3 dxc3 Qf6 Be3 Qe7 Bc1 Qd8 Kd2 Kd7 e4 Kc7 b4 Kb7 d5 h5 d6 a5 g3 f5 g6 h4 c4 f4 Kc3 h3 Kb2 f3 b6 a4 c5 f2 c6+ Ka6 b5+ Ka5 g7 h2 b7 Qe7 b8N Bb7 c7 Rh6 c8R Rh4 d7 Ra7 b6 Bc6 b7 Bd5 Nc3 Qe6 Be2 f1Q Nf3 Rf4 Rg1 h1Q Nh4 Ba2 Rc4 Rf5 Bh5 Qa6 Rd4 Qff3 Bg5 Qf2 Qg4 d2 Nd1 Nh6 g8R Rf4 Rg6 Qhf3 Rg2 Q2e2 Nf2 Bg8 Nh1 Bh7 Nc6+ Kb5 b8B c1Q+ Ka2 a3 Bd6 Qb7 Bc5 Qg1 Rc1 Qff2 Qe6 Ng4 Qg8 Qff1 Kb1 a2+ Kb2 Qff3 Bge7 Nf2 Rg4 Ra6 Ng6 Rb6 Bh4 Qfd3 e6 Qdf3 e5 Re4 e7 a1Q+ Kc2 Qf5 e8R Qaa7 Kb2 Ka6+ Ka1 Rb2 e6
3Br3/1Rb1R3/1n1k1b1P/5q2/r1pB2pb/2N2PBN/2n1BR1P/1NBK2Q1 b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b6 h5 gxh5 a5 b3 a4 Bc4 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Ra5 Qf3 Ra6 Qd1 Ra8 d4 Kd7 b7 e5 a5 c5 d6 g5 h6 g4 a6 a2 a7 c4 f6 e4 f7 e3 d5 e2 Nh3 Na6 b8B Bg7 f8R Kc8 d7+ Kb7 d6 Qe7 d8B Kc6 d7 Nf6 Bb6 Qe4 d8B Qe5 Bd4 Qf5 Bg3 Nb4 f3 Nfd5 Rf7 Be5 Re7 Nb6 Rg1 Kd6 Rg2 Rh7 Rf2 Nc2+ Kd2 Rb8 a8N e1B+ Ke2 Rh8 Nc7 Ra8 Nd5 Ra4 Ndc3 Re8 Rb7 Bd2 Qe1 Bg5 Kd1 Bh4 Be2 Bf4 Qg1 Be5 Na3 Bf4 Rb1 a1B Rb5 Bb2 Re5 Ba1 Ree7 Be5 Na2 Bc3 Nb1 Bf4 Bh8 Bcf6 Nac3 Kc6 Qe1 Bd4 Bg7 Bc7 Qg1 Kc5 Bf6 Bde5 Bfg5 Bf6 B5f4 Kc6 Be5 Kc5 Bd4+ Kc6 Nf4 Kd6 Nh3+
R1K2BR1/7Q/6N1/Pp1b1n2/N1N3P1/b2B1bnq/BrRbp1PN/N2k4 b - - 0 1 legal: proof: f4 b5 d4 g5 b4 e5 e4 d5 exd5 a5 bxa5 g4 c4 e4 d6 g3 hxg3 Qf6 d5 Ra6 g4 Qe5 d7+ Ke7 c5 Rd6 cxd6+ Kf6 fxe5+ Kg6 Kf2 c5 Kg3 f5 Kf4 h5 d8R e3 a4 c4 a6 c3 d7 c2 e6 h4 Ke5 Kg5 e7 f4 Ke6 h3 e8N f3 d6 Kf4 a7 f2 a8B h2 Nf3 Be7 Ba3 c1B Bd3 f1B Qc2 Rh3 Bd5 Bd2 Nc3 Bh4 Ba2 Be2 Rhc1 h1Q Nh2 Qf1 Qb1 Ne7 Rc2 Bb7 Rc8 Qf3 d8N Ba8 d7 Bhe1 Nf7 Nf5 d8N Bd1 Nh8 Na6 Kd7 Bd5 Nc6 Nc5+ Kc7 Ne4 Ng6+ Kg3 Nd4 Kf2 Nb3 Neg3 Bf8 Be2 Rb8 Bc1 Rd8 Ba3 Kc8 Bd2 Nd6 Bd1 Nc4 Ke1 Nf1 Rh1 Nh2 Rg1 Bc5 Rf1 Rg8 Rf2 Bf8 Nf1 a5 Qh3 Na4 Re2 Qb2 Rf2 Qg7 N1g3 Qh7 Re2 Rb1 Rf2 Rbb2 B1f3 Na1 Kd1 Rb3 Bdb4 Rbc3 Rd2 Be4 e2 Re3 Bc3 Bd3 Bcb4 Re6 Bc3 Ra6 Bcb4 Rc3 Rb2 Rc2 Bd2 Ra8
1Nb2K1b/kp4QB/1q1PRpB1/P4NN1/r3PN2/Rb2b1B1/3N2n1/1R3n2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 d5 c4 e5 fxe5 a4 cxd5 a3 b4 Bh6 b5 Na6 b6 Ra7 bxa7 Bf8 a8R Bh3 Rb8 Be6 Bxa3 Bh3 Bc1 Bc8 Kf2 Kd7 Ke3 h5 Ke4 c5 Kf5 Kc7+ e6 Kb6 g4 c4 a4 h4 d4 c3 d6 f6 Kg6 c2 Kf7 h3 d5 h2 a5+ Ka7 g6 Be7 d7 Ba3 d6 Bc5 e7 Rh3 e8B Rg3 g7 Bd4 g5 Rg2 g6 Bb6 Nf3 Ne7 g8N Bc7 g7 Rg4 Nh6 Rb4 g8N Rd4 Nbd2 Rd5 Ra3 Rb5 Kf8 Nc5 Ng5 Nb3 Nf5 Nd5 Nge7 Ne3 Ng6 Bb6 Nf4 Ng2 e4 Rb4 Bc4 Ra4 Qg4 Be3 Bg8 Qb6 Rf1 h1B d8N Bg1 Bg6 Be3 Bb2 c1B Rg1 Qc6 Be5 Qb6 Nc4 Nd2 B8h7 Nf1 Nd2 Nh4 Qg3 Bf3 Rh1 Bd1 Nc6+ Ka6 Qg2 Bb3 Qg4 Ng2 Qg3 Bd7 Re8 Bc8 Nb8+ Ka7 Re6 Nh2 Nc4 Bcd2 Rb1 Nf1 Qh4 Bc1 Qh6 Bcd2 Qg7 Bc1 Nh5 Bcd2 Bg3 Bc1 Nh3 Bh6 Ng5 Be3 Nf4 Rb4 Nd2 Rd4 Ke8 Ra4 Qf8 Bg7 Ke7 Bh8 Qg7 Ne1 Ke8 Ng2 Kf8
B1b5/2K1Nq2/5Rp1/1R6/B1nNp1RP/1Pp1n2k/N2B1P1N/QN1n2rr b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 b5 cxd5 b4 Bd3 b3 axb3 Qd6 Bf1 Qd8 g4 h5 gxh5 a5 Qf3 e6 Be2 a4 Bf1 a3 Qe2 a2 Qd1 Ba3 bxa3 Qf6 Qg4 Qh4 Qd1 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 Ke5 Kh4 d4 c5 a4 c4 a5 c3 d6 Nf6 d5 Nh7 a6 Re8 h6 Nf6 h7 Qe7 h8N Bb7 d7 Qf8 d8N Qa3 a7 Qc5 Nc6 Rg8 Bb5 Na6 Nb4 Qc6 d6 Rab8 a8B Qg2 d7 Qe4+ Kd6 e5 d8N Qf3 Ndc6 e4 Ba4 Rbc8 Nd4 Nd7 f6 Nac5 f7 Ne5 f8R Ncd3 Rf6 Nb2 Bd2 Nec4+ Kd7 Rce8 Kc7 Bc8 Ng6+ Kg4 Qc1 Nd1 Ne7 Rh8 Qa3 Reg8 Qb2 Qf5 Ngf3 Kh3 Rg1 Qh5 Rg5 Qf7 Rb5 Rh6 Na3 Rhh8 Rb1 a1N Na2 Nc2 Qa1 N2e3 Rc1 Ndb2 Rg1 Nbd1 Rgg5 g6 Nb1 Rd8 Rg1 Rd5 Rg4 Rg5 Rgf4 Rg1 Rg4 Rh1 Rg1 Rh5 Rg4 Rg5 Rgf4 Kg2 h4 Kh3 Nh2 Rgg1 Rg4
2KnB3/1rb2q1R/1P2Rq1q/N2NB3/3P1r1n/PR3BQB/b1n2N2/k5Br b - - 0 1 illegal: No proof kernel
bnRQ4/n4nR1/2n1R3/3K2Nr/PN2nB1P/NB3k2/1r1R1Pr1/R1b1B1q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 Kf6 Ke4 Kg5 a4 c5 f6 e5 h6 b5 d6 c4 h7 c3 h3 b4 f7 c2 a6 b3 d7 b2 a7 Bb7+ Ke3 e4 Kd4 Kf4 h4 g5 d3+ e3 Qh5 g4 Qc5 g3 Nh3+ Kf3 Qc7 g2 Na3 b1N Rg1 e2 Bf4 Qg5 d8N c1N Nc6 e1N Nb4 Ne7 Qd8 Bh6 f8R Nc3 Rf6 Nc8 Re6 N1e2+ Kc4 Be4 d4 Nd3 d5 Nd4 d6 Ndc6 d7 Nde5+ Kc5 Bd5 Bc4 Nf7 Bb3 Qg6 Rge1 g1R Ng5+ Kg4 Red1 Rg2 Rd2 Bf3 Kc4 Qb1 Kc5 Ne4+ Kc4 Qg1 Kd5 Re8 h8B Rf8 Bc3 Rh8 Qf6 Rh7 d8R Rh8 Nh3 Bg5 Rd7 Rh5 Bc7 Be3+ Ng5 Bf4 Qd8 Be3 Re2 Bc1 Rde7 Nd7 Bd2 Rb8 a8R N8a7 Bcf4 Rb7 Rc8 Ndb8 Be1 Rb6 Rd2 Rb7 Na6 Rb6 Bd1 Rb2 Nb4 Nc5+ Kc4 Nd4 Rec7 Nh8 Bc2 Ba8 Rg7 Ndc6 Qd6 Ne4 Bb3 Nf7 Kd5 Nfe5 Nh3+ Kf3 Qd8 Nf7+ Ng5+
r1rk4/2BN3r/B1q1PR2/RP1RQ1K1/4bPnB/n3b2r/2b2r1N/2N2RR1 b - - 0 1 illegal: No proof kernel
1r6/B3n1Q1/4P2R/rkPNRBrR/1rb3N1/1N3BK1/2Pqqn1B/3nB1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 d5 e4 Kd7 h4 f5 b4 a5 e6+ Kc7 e5 g5 e7 a4 e8B f4 e6 f3 b6+ Kb7 b5 a3 h6 a2 h5 g4 h7 d4 h6 d3 Nc3 d2 Nd5 Bd6 Bh3 Ra4 Ne2 Be5 Qg1 d1Q Bd2 Nc6 Nd4 Nf6 Nb3 Ne7 Bh5 Bh2 Be1 Rb4 Qg2 Bg1+ Kg3 Rf8 h8N f2 h7 Qe2 Ng6 Qd6+ Ne5 f1N+ Kh4 g3+ Ng4 Bd7 h8R Ne3 Rh6 Nd1 Rc1 a1R Rb1 Kb8 b7 Ka7 b6+ Ka6 b8B Ne4 b7 Nef2 Ba7 Ra5 b8B Bb5 Ra1 Qf4 Rh2 Qfd2 Ra4 Rbf4 Re4 Bc4 Re5 Kb5 Bc7 Rb8 Rh1 Bh2 Qg1 g2 Bd6 Nd3 Qd4 Bg1 Kg3 Re4 Nh2 Ng6 Rg5 N3b2 Bf3 Ne7 Qg7 Nf2 Bf4 Nbd1 Kh4 Bd3 Rf5 Rb4 Re5 Bc4 Bhg4 Qe4 Bf5 Qee2 Ng4 Bh2 Nge3 g1R Bg3 Nc3 Bf4 Rg5 Ng4 Bg1 Rh3 Qf1 Bh2 Ncd1 Kg3 Qfe2 R3h5
1Q4Rr/3K2N1/1RP1n1bn/R1PB1n2/2q4q/N1B3bN/2nP2rB/1B2kBb1 b - - 0 1 illegal: No proof kernel
B1n1rr2/2R3Pq/2bNP3/n1KN4/1R1N1r2/bRBkr2P/Q1R3q1/1B2b2R b - - 0 1 illegal: No proof kernel
2B1bKNN/5n2/bbQBRnr1/1Pr1BBB1/1kqN3n/1P2pR2/2P1R1q1/8 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 e5 Ke3 Ke7 Ke4 g5 Kd5 a5 f4 e4 h4 g4 h6 d6 c6 a4 h7 g3 f6+ Kf7 f5 g2 b3 a3 c7 a2 h5 Nh6 Rh2 Nd7 Bg5 e3 Ne2 g1N Nd4 Ra6 Re2 Nf3 Nc3 Nh4 Bh3 Rc6 Qh1 Rg8 h8B Rg6 Ne4 Ba6 c8B Qc7 Rf1 a1Q Rf3 Qg1 Qg2 Ke8 Ke6 Nf7 h6 Rc5 h7 d5 Bg7 Qf4 h8N Kd8 Qh1 Kc7 Qg2 Bd6 Bg4 Be5 Ke7 Kb6 Ke8 Ka5 Qh1 Nd8 f7 Bc7 f8R Qg2 f6 Bb6 f7 Kb4 Bf5 Nf6+ Ke7 Qfg4 Re8 Qf4 f8B Nf7 Ke6 Qfg4 Bd6 Qf4 Ke7 Qfg4 Ne6 d4 Kf8 d3 Nd4 d2 Re5 d1B Re6 Nd5 Bge5 Nf6 Nf2 Qe4 Ng4 Qd3 Nh6 Qc4 Ref2 Be2 Ng8 Bd3 Rd2 Be4 Rdf2 Bc6 Re2 Be8 Rg3 Qg1 Qc6 Qg2 Rf3
1rR1kB1N/N2q2qB/2Nr1PR1/pn3QbK/P5P1/1B3n2/Nq2b3/b2NR3 b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 g5 c4 g4 cxd5 g3 hxg3 Nd7 g4 Nb8 g5 Bd7 Ne2 Be6 Ng1 Bc8 Ke2 b5 Kf3 a5 Kg4 e5 f4 e4 d4 e3 a4 h6 c6 e2 d6 e1B g6 b4 d5 b3 g7 b2 c7 Bc3 d7+ Ke7 f6+ Kf7 d6 Rh7 f5 Be1 Bd3 Bf2 Ne2 Bc5 Re1 Ba6 c8R Nc6 Kh5 Ne5 Nec3 Ne7 Qg4 Bd4 Nd1 N7c6 Nbc3 b1Q Ba3 Na7 Na2 Be7 g8B+ Kf8 f7 Nb5 Bc2 Bg5 Bb3 Rb8 g3 Qe8 d8N Nf3 Nc6 Qb2 Na7 Rg7 Bh7 Rg6 d7+ Rd6 d8N Qd7 Rg1 Ke7 f8N Ke8 f6 Bc3 Kg6 h5 Qf5 h4 Kh5 h3 Ng6 h2 Nh8 Bd4 Rac1 Be5 Re1 Qg7 R1c2 h1Q+ Rh2 Qg1 g4 Qc5 Rh3 Qcc7 Rhh1 Qcd7 Rh2 Rc6 Bf8 Rd6 Rhh1 Nc7 Rh3 Be2 Rh4 Nb5 Rh2 Qb1 Rhh1 Ba1 Ndc6+ Qd8 Rh4 Qb2 Rh3 Qc7 Kg6 Qe7 Rh6 Qc7 Kh5 Qg7 Rc7 Qde7 Rg6 Qd7 Rc8+
4B2B/1KN4B/RNP1N3/1P1qq1bP/1r1Q2R1/Nn2n3/p3Rn1q/3brN1k b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 c4 g5 f4 a5 b4 a4 h4 a3 b6 g4 c6 g3 Kc5 g2 c7 d4 b5 d3 b7 e5+ Kb6 d2 c5 e4 h6 e3 h5 e2 c6 e1Q h7 Ra7 Rh2 Qe4 Nf3 g1N Bd3 Qdd5 Re2 Bh6 Nh2 Qd6 Nf1 Qg2 Bb2+ Qe5 Bc3 Bd7 c8B Na6 b8N Nc5 Na6 Ne7 Nc7 Re8 h8R Qh2 Rg8 Ra4 Rg4 Nb3 Kb7 Rb4 Be4 Be6 Bd7 Nd5 Bd4 Re7 Be8 Bg5 Ra2 Nh3 Bb2 Kg7 f6+ Kh6 f5 Nf2 f7 Ne3 f8N Bd5 Bd3 Bf3 f6 Re6 f7 Re7 Qe1 d1Q Bh7 Qdd5 Nd7 Re6 f8N Re7 Rc2 Bd1 Re2 Re6 Qc3 Re7 Ba1 Re6 Rac2 a2 Nb6 Re7 Qd4 Qh8 Na8 Nf5 Bhg6 Bd2 Nb6 Nc1 Rc3 Qg7 Ra3 Nb3 Bh7 Re5 Rge4 Kg5 Qb2 Bf4 Ra8 Kg4 Na3 Kh3 Rd2 Kg2 Ne6 Bg5 Rg4+ Kh1 Ra6 Re1 Re2 Ne3 Qc3 Qgd4 Qd2 Q4e4 Bh8 Qee5 Qd4
1rqR1R2/1r2q3/r1p1NbB1/2RP1NB1/2P5/nk2KBRN/Rn1P2Qn/1b6 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 exd3 Be6 d4 Bd7 d5 Bc8 Kf2 Ke7 b4 a5 c4 g5 h4 f5 h6 g4 h7 g3+ Ke3 c6 b6 g2 b5 a4 e6 Kd6 b7 Kc5 e7 Kb4 e8B a3 h5 a2 h6 Bd6 b6 Ra3+ Nc3 Ra5 Na4 Be7 Bb2 Nd7 b8R Ra6 b7 Ngf6 Be2 Nc5 Rh3 Nd3 Qf1 Kb3 Bf3 Qd6 Ba3 Nb2 Rg3 Bd8 Nh3 g1R Qe2 Rb1 Qg2 Rf8 h8N f4+ Ke2 Bd7 h7 Bf5 Nf7 Ng4 h8R Bf6 Nh6 Nh2 Rd8 Qe7+ Kf2 Rf7 Rf8 Rh7 Bg6 Rh8 Be4+ f3 Ke3 f2 Bd6 f1Q Bf4 Qd1 Bg5 Qg4 b8R+ Qb7 Ra8 Qe7 Bh5 Bh7 Bg6 Qc8 Ra7 Rg1 Rb1 a1N Nf5 Re1+ Kf2+ Re3 Bf3 Nc2 Ra1 Re5 Ra2 Na3 Ra8 Re1 Ra7 Rb1 Nc5+ Kc2 Ne6 Kb3 Ke3 Rg8 Rf7 Rh8 Rd6 Rd8 Rf8 Rd7 Ra8 Rb7 Rdd8 Rb8 Ng1 Kb4 Nd4 Rab6 Bge4 Nd3 Ra5 Ra6 Rc5 Rb3 Nh3 Nb2+ Bd3 Ka4 Bh5 R3b7 Bde2 Bf5 Bef3 Bb1 Nf5 Kb3 Bg6
B7/N2Q2KP/n2Bk1b1/2npBN2/N2nP1R1/Prb1r1R1/N2q4/1NRq1b2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Ke3 b5 Kd4 g5 c4 f5 h4 g4 a3 f4 h6 b4 e6 f3 Ke5 f2 h5 b3 c6 g3 c7 g2 a6 b2 a7 Bb7 c8N+ Ke8 h7 Ba6 h6 Bb7 c5 Be7 c6 Bc5 c7 Bb4 e7 Kf7 e8R Bf3 Nd6+ Kg6 c8N Na6 Nf5 Kf7 Bf4 Ba5 Rh3 Rb8 a8N Bc6 Na7 Rb7 Nb6 Be4 Rg3 Nf6 Na4 Rb3 Reg8 Bc3+ Qd4 Bc2 R8g4 Ne4 e3 Rf8 h8B Nec5 Ne2 g1N Bg2 f1B Nc1 Ne2 Ba8 d5 h7 Qg5 Na2 Rd8 Bg7 Rg8 Bf8 Qh6 Bd6 Re8+ Ne7 Bg6 e4 Rg8 Nf5 Qh2 Nd2 Qf2 Rd1 b1Q Rc1 Qd3 Nb1 Qd1 Bg5 Qe3 Bf6 Qed2 Bh8 Bb4 Qd3 Nd4 Qb5 Rb8 Qc6 Re3 Bg7 Bc3 Qc7+ Ke8 Kf6 Rb3 Qb7 Kd8 Bh8 Ke8 Kg7 Kd8 Kh6 Ke8 Bhe5 Kd8 Qc7+ Ke8 Qd8+ Kf7 Qc7+ Ke6 Kg7 Ne2 Qb7 Nd4 Qd7+
1k2b2K/BN1nPR2/p2P2r1/NRnNBnb1/N5qP/1NQ2B2/3q4/1R2r2q b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 g5 Kd4 f5 b4 c6 h4 Kc7 e4 f4 h6 f3 d6+ Kb7 b6 a6 h7 g4 b5 g3 d7 g2 e6 f2 Ke5 c5 d4 c4 d5 c3 e7 c2 e8N Bh6 d6 Bf8 Nc7 Bh6 Qe1 Bg5 Be3 c1Q Nd5 Qc2 Nf3 g1N Bg2 f1Q Nbc3 Ne2 Nd4 Ng3 Bf3 Qcg2 Na4 Bh6 Rb1 Ne7 Kf6 Re8 h8B Ne2 e5 Nf4 e6 Nf5+ e7 Qg3 Qc3 Qgf2 Nb3 Q1e2 Rhf1 Bg5+ Kf7 Qc7 Be5 Ne6 Bc5 Ra7 d8N+ Ka8 Be3 Bd7 Nb7 Qc6 Kg6 Qd2 Kh7 Rg8 Bc5 Rg7+ Kh8 Rg6 Be4 Qc8+ Nd8 Rc7 Qf3 Qh2 Qh3 Ne3 Rf7 Nf1 Bf2 Qd4 b7+ Ka7 Bg1 Rc1 Qc3 Qe3 Bf3 Be8 Bf2 Ng3 Bg1 Nd7 b8N Qc4 b6+ Ka8 Nbc6 Qh1 Nca5 Re1 b7+ Ka7 b8R Nf5 Rb6 Qd2 Ndb7 Kb8 Rb5 Qg4 Bb6 Nec5 Ba7+
Nq1b3N/4PP1p/3Pq3/2N5/bq1Nn1R1/RrBB1Q1r/Kn5R/1Nb3kB b - - 0 1 illegal: No proof kernel
1bR4R/pq2qPn1/k5Rq/5P1B/1N2bBR1/1N1P3b/3nr1QR/1BK1Nr2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 b4 c5 f4 Kc7 g6 Kb7 b6 h5 d6 e5 d3 h4 Kd2 h3 f6 h2 d7 e4 f5 c4 b5 Bg7 g5 Rh7 Nf3 Ne7 Ra4 Nbc6 Ne1 Nd5 Qg4 Ne5 Qg2 Qc7 d8R Nf4 Be2 Ne6 Bh5 c3+ Kc2 Bd7 Rh8 Nc4 Nd2 Re8 Nb3 Bc6 Bf4 e3 Kc1 e2 Rb4 Bh6 g7 c2 g8R Be4 g6 Nd2 g7 Bg5 Rc4 Bh4 Rd4 Bg3 Rc4 Re7 Rc8 Qc6 g8B Ng7 Be6 Qc7 f7 Rh6 Rg1 h1B Rc6 Rg6 Bc4 Rg5 Rg6 Bh2 Rhh6 Rg3 Rg4 Rf3 Rhg6 Bg3 Rh4 Rf1 Rh8 Re8 Rh2 Kc8 b7+ Kb8 Qf3 Bg2 Qf2 Bh3 Qg2 Bh4 Be6 Bf6 Bc4 Be5 Be6 Qe7 Bd5 Kc7 b8N Qd7 Be6 Kb7 Nc6 Bb8 b6 Ka6 b7 Qe7 Qf3 Qc7 R1g4 Qd7 Qg2 Re7 Kb2 c1Q+ Ka2 Nc4 Bg5 Bc7 b8R Bf3 Nc2 e1Q Nbd4 Qh4 Rbc8 Qf4 Ne1 Bb8 Kb1 Nd2+ Kc1 Qb7 Ba2 Re2 Nb3 Be4 Bh6 Qhe7 Bb1 Qfc7 Be3 Qg5 Bf4 Qh6 Rg3 Qd7 R3g4 Qe7 Nb4+
n2b4/1R4nB/4bP2/Q1p1B1r1/NNkPn2R/3r1BPN/1q1b1N1N/b1R2K2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kf7 b4 c5 d4 a5 f6 h5 f5 e5 d6 e4 g3 e3 b6 a4 b7 a3 d7 a2 b5 h4 b6 e2 Qd2 h3 Qa5 h2 Bf4 Rh4 Be5 Bg7 g6+ Kf8 f7 Ke7 f8N Qc7 d8N Bh8 g7 Ra6 Nf3 Nd7 b8R Rh5 b7 Nh6 g8B Rg5 Nbd2 Qb6 Nfe6 Qb2 Bg2 Nb6 Rc1 a1B Bh7 Na8 Nf4 Bf6 Ne4 Be6 Nf2 Rb6 N4h3 Rb3 Nc6+ Kf7 Qa2 Bd8 f6 Rd3 Nb4 Nf5 Qa5 Ng7 Na2 Bd5 Nc3 Ke6 Na4 Bc4 Rg1 h1N Nh2 Bb3 Bf3 Ba2 Nd1 Nf2 Rh1 Ne4 Ndf2 Kd5 Rc8 Qb3 b8N Qb7 Na6 Qb2 Rc7 Bc4 Rb7 Bb3 Nc3+ Kc4 Nb4 Ba4 Bc7 Bd7 Be5 Bc8 Nfg4 Be6 Na4+ Nc3 Kf2 e1B+ Kf1 Bd2 Ngf2 Rf5 Re1 Rh5 Re4 Rg5 Rh4 Ne4 Ke2 Qb1 Rc1+ Qc2 Kf1 Qc3 Rd1 Qb2 Rc1+
4N1R1/B3Nr1r/K1P3Q1/1Pb4n/1b3np1/B4RP1/1Rbb1BN1/kB3Bnq b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 g4 d4 Qc7 dxc5 Qf4 Ne2 Nh6 Ng1 Qg5 hxg5 Ng8 Ke2 Kf7 Kd3 a5 Kc4 h5 f4 e5 b4 e4 f6 Ke6 c6 d6 g6 a4 f7 a3 b6 d5+ Kb5 e3 c4 h4 b7 d4 c5 Kd5 c7 e2 c6 e1B f5 d3 g3 Kd4 f6 d2 g7 h3 Ne2+ Kd3 Nbc3 a2 Nf4+ Kd4 Ncd5 h2 Ng2 Ra7 Rb1 a1B Ne7 Kc3 Rb2 Bf5 c8B Nd7 b8B Bc2 Qe2 d1N Qe6 Rh4 Be3 Nc5 Bf2 Bd2 Kb6 Rh7 b5 Rc7 Ba7 Nd3 Ka6 Nf4 Qe4 Rd7 Qg6 Rb7 Rg1 h1Q Be6 Rc7 Ba2 Rb7 Bb1 Rd7 Nf5 Bc5 f8N Rf7 Ne6 Bb4 Nc7 Bc5 Be1 Nf2 Ne7 N2h3 Bf2 Bb4 Ne8 Bc5 Ra2 Bb4 Ra3+ Kb2 Rf3 Bc5 Ne1 Bcb4 Rg2 Ng1 Rh2 Rf8 f7 Nf6 g8R N6h5 Ng2 Bc5 Ba2 Bdb4 Be6 Kb1 Bf5 Bac3 Be4 Ka1 Bed3 Ba4 Bb1 Bd2 Rh8 Rg8 f8B Rgg7 Rg8 Bc2 Nf5 Rf7 Bd6 Bce3 Ne7 Bbc3 Ba3 Bb4 Rh4 Ng7 Rh5 Bec5 Re5 Ngh5 Ree3 Rh6 Rb3 Rhh7 Rb2
nn1Brn2/3r3P/kR2B3/3Bqb2/1bK4p/P2RBBn1/PN3QN1/1N3R1b b - - 0 1 illegal: No proof kernel
r2Nk3/1qBP4/4rBp1/2P2n2/nBbrN2b/KNQP1BB1/3Rn2R/n6R b - - 0 1 illegal: No possible last move, all moves rejected
bbB1kN1n/4nr2/2R1nN2/3pB2N/K2n2N1/1rqPQBPN/4R2P/1R4q1 b - - 0 1 illegal: No proof kernel
1qr5/N1Bk2PN/1rPbp2B/6RB/1Nb5/K4nn1/3qn1P1/nRNQN2R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 h5 Kc3 a5 Kb3 d5 c4 a4+ Ka3 e6 b4 h4 f4 h3 b6 h2 c6 d4 c5 d3 g6 d2 c7 Ke7 b7 Nd7 b8N Rh7 b5 Ngf6 b6 Ra6 g7 Ra8 b7 Ng8 f6+ Ke8 f7+ Ke7 f5 Ra5 Be2 Nh6 Nc3 Ra6 Bh5 Ne5 Nc6+ Kd7 b8B Nf3 f6 Rh8 Rb1 Rb6 Na2 Nf5 Ncb4 Ba6 c8N Bd6 f8R Ng3 f7 Bc4 Bc7 Ne2 Na7 Qb8 Rd8+ Ke7 f8N Rg8 Qb3 d1Q Nh7 Qd2 Qd1 Rh8 Rf8 Kd7 Rf5 Re8 Rg5 Rc8 Nh3 Ne1 Nf4 Nf3 Re1 h1N Nfd3 Nhg3 Rh1 Qe3 Bd2 Qf2 Nac1 Qe1 Kb2 Qf2 Ne1 a3+ Ka1 a2 Kb2 a1N Ka3 Ned4 Rd5 Qe2 Bh6 Qd2 Rg5 Nde2 c6+
2R1N2N/1N1p1nP1/B1rb1K2/nN4R1/3PbQ1N/4R2n/Br1BPnq1/2qk4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qe7 c4 Qf6 c5 Qd8 Kf2 Ke7 Kf3 Ke6 Kf4 Kd5 Kf5 Kd4 c4 h5 g4 a5 e6 a4 c6 a3 b6 a2 e7 f6 e8N h4 c7 h3 c5 h2 c6 Bg7 g6 Ra6 b7 Ra8 g5 Rh7 Nc3 Bf8 g7 Rh6 g6 Bd6 Bg2 Na6 b8R Bb7 c8B Qc7 d3 Nc5 Bd2 Ne4 Qf1 Ng5 Bd5 Nh3 Rb1 a1N Rb5 Ra4 Ba2 Rb4 Ra5 Ba8 Ba6 Rb2 Rc8 Nb3 Qc1 Qb7 c7 Qg2 Ra3 Na5 Nf3+ Kc5 d4+ Kb4 Rf1 h1N Nh4 N1f2 Rg1 Bb7 Bg5 Ba8 Nb5 Bc6 Rg3 Bf3 Qf4 Ka4 Bb1 Kb3 Ba2+ Kc2 Bd5 Qf1 Ba2 Qc1 R1g2 Ba8 Re3 Bc6 Rd8 Kd1 c8N Bf8 Ncd6 Be7 Nc4 Bd6 Rc8 Qa1 Qg3 Bb8 Ncd6 Ne4 Rf3 Qc1 Bd2 Bc7 Nb7 Bd5 Re3 Bf4 Kg4 f5+ Kf3 Be5 Qh2 f4 Kg4 f3 Kf5 f2 Rg5 f1Q+ Qf4 Ngf6 g8N Ng4 g7 Qg2 Rec3 Nef2 Rf3 Rc6 Ne7 Bd6 Neg6 Nh6+ Kf6 Nf7 Nh8 Be4 Re3
1nB2KBq/P1R1p2q/r4R2/q3B2k/R4q2/1Nb1PN1b/NP1N4/NQq3n1 b - - 0 1 illegal: No proof kernel
1Nr1n2q/1K1R1pB1/3q1N1k/2P2PrB/3rN1Qn/3nrN2/R1P3bR/3N1B2 b - - 0 1 illegal: No possible last move, all moves rejected
1n5K/q2B1k1N/2P3r1/3B3R/R2BNPRr/1bRN3p/Qp3Pr1/3nb1Rn b - - 0 1 illegal: No possible last move, all moves rejected
nn1B3B/R1q3P1/2n5/1bbKppPP/N5B1/4rQBN/RbkN2Br/1R6 b - - 0 1 illegal: No proof kernel
r2qBR1b/Pk3N1B/4nN2/3R2p1/3rp3/B3r2Q/P1nN1RPb/1K1b2NN b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 c4 Nc6 cxd5 Qd7 h4 Qd6 h5 Qg6 hxg6 Nb8 Qh5 Kd8 Rh4 c5 Kd1 Kc7 Kc2 e5 d4 b5 f4 c4 d6+ Kc6 a6 h6 d7 b4 d8N+ Kc7 g7 c3 f6 e4 f5 Ne7 g8B Nbc6 a7 Nd5 f7 Bd6 f8N Nf4 f6 Bg4 Nde6+ Kb7 Ba3 b3+ Kc1 c2 d5 Rh7 f7 Nd4 Ng7 Nfe6 Bb5 Be5 Nf5 Bh8 d6 Rg7 d7 b2+ Kd2 c1B+ Kc3 Bf3 Nh7 Bf4 f8R Bd6 Qg4 h5 Ng3 Be2 Rh3 h4 Nf6 Bf3 Nh1 Bg3 Nf2 Bd6 Rg3 h3 Bh7 h2 Ba4 Rf7 Qh3 Bg4 Rd3 h1R Ne2 Bc7 Nd2 Re1 Nh1 Bh2 Ng1 Re3 Rf1 Bd1 Rf2 b1Q Bb5 Rg7 Ba4 Qb6 d8N+ Ka6 Bc6 Rd7 Nf7 Qd8 Kb2 Nc2 Kb1 Rd5 Be8 Kb7 Rc3 Rd7 Rc5 Rd4 Rd5
5N2/B1k1rR2/nR1qqb1r/4RNQp/2PPn2P/3KRp1n/B6r/2RN3B b - - 0 1 legal: proof: a4 b5 axb5 c5 f4 g5 fxg5 d5 d4 Bf5 dxc5 d4 Kd2 d3 Ke3 d2 Kf2 Bd3 exd3 Qc8 Ke2 Qd8 g4 Kd7 b4 f5 h4 a5 g6 e5 g7 h5 b6 e4 b7 f4 b5 a4 c6+ Kc7 g5 e3 g6 a3 b6+ Kd6 c7 a2 c8R Ne7 g8R Ra4 g7 Rc4 Rh3 Rc6 Rc7 Rc5 Nf3 Rd5 Bg2 Rh7 Bh1 Qc8 Qg1 d1N Nd4 Na6 b8N Nb4 b7 Nf2 Nd7 Ng6 b8R Be7 Nf8 Na6 Qg5 Bf6 Rf7 Ne4 Nc3 Qe6 Nd1 Rh6 Nf5+ Kc6 Rab1 a1Q c3 Rd7 R8b6+ Kc7 d4 Re7 Ba3 Qd6 Rc1 Qa2+ Kd3 e2 Bc5 e1R Re3 f3 Rh8 Re2 g8B Rh2 Rhh7 Rd7 Re7 Qad5 Re5 Re7 Be6 Q5c6 Ba2 Qe8 Rf7 Nf4+ Kc4 Nh3 Kd3 Qec6 c4 Qcd5 Rb5 Q6e6 Ba7 Qdd6 Rb6
r1b3BK/5p2/NQPPn1pR/q4q1n/N2Nn1P1/6Rr/k3Rq1N/N5BB b - - 0 1 illegal: No proof kernel
1Rn3Bb/2Np1N1b/2k5/np1PP1R1/1P2N1b1/r2B1Nnn/1q1B2R1/1Q2K1N1 b - - 0 2 legal: proof: g4 b5 f4 e5 fxe5 a5 b4 h5 gxh5 Ra6 bxa5 Rd6 c3 Rd4 Nf3 Bd6 Ng1 Rb4 cxb4 Bf8 e4 g5 a4 f5 h4 c5 d4 f4 e6 f3 e7 c4 h6 c3 e5 g4 h5 g3 h7 c2 h6 g2 a6 Nc6 a5 Bg7 a7 Ba6 a8N Qc7 Rh5 Bb7 a6 Na5 a7 Qc3+ Nd2 Qb2 Ra2 Be4 Rg5 Bf6 Bd3 f2+ Ke2 f1B+ Ke1 Bg7 Ndf3 Be2 Bd2 c1N Nc7+ Kf7 e8R Ne7 Rb8 Nc8 a8B Ke7 Bb7 Kd8 Bd5 Re8 h8N Bh7 Bg8 Bf6 Nh4 Bg4 Nhf3 Ne2 Qb1 Ng3 Nf7+ Ke7 Ne6 Bh8 Nc7 Rf8 Nd6 Kd8 Ne4 Rf6 Bb3 Rc6 Be6 Rc3 Bg8 Ra3 Bc3 Qa1 Re2 Qb2 Bd2 Bg6 h7 B6f5 Nh3 g1N Rg2 Bg6 Nf4 Nh3 Ne2 Bg7 h8N Bh7 Neg1 Bf6 Nd5 Bg7 Ne3 Kc7 Nd5+ Kc6 Nc7 Bf6 Nf7 Bh8 d5+
4q1k1/Q2b1P2/1RpP1n1p/b3RN2/RnP1NK1B/n3R1N1/3bB3/2RBn2r b - - 0 1 illegal: No possible last move, all moves rejected
5R2/1BK1Bn1b/1N5p/1rk1Nr2/q1N1BQPP/1R3B2/Pr1nq1p1/rB5R b - - 0 1 illegal: No proof kernel
4qRn1/1R2b1B1/QN1p3P/5nN1/2n1Pp1k/r2qR1NB/B1RPn1K1/r3R3 b - - 0 1 legal: proof: g4 h5 gxh5 e5 c4 b5 cxb5 e4 b6 d6 a4 e3 b4 Qd7 a5 Rh7 a6 Ke7 b5 Bb7 axb7 Rh8 fxe3 Qd8 e4 Kd7 e5 Ke8 Kf2 Ke7 h4 c5 e4 f5 e6 Kf6 e7 g5 e8B a5 h6 f4 h7 c4 h5 c3 h6 c2 Nh3 a4 Nc3 a3 Qe2 a2 Kg2 g4 Bb2 c1Q Ng5 g3 Rh3 Na6 b8N Qe7 b7 Nb4 b6 Nd3 Bf7 Qc2 Re1 a1N Ba2 Ne5 Qa6 Qe8 Ne2 Be7 Nd7+ Kg6 b8R Nc4 b7 Qd3 Bc3 Nb3 Bg7 Nd4 Rc8 Nf5 b8R Ra7 Nb6 Ra8 Kg1 g2 Re3 Kh5 Ng3+ Kh4 Rb7 Ra7 Kh2 g1N Bh3 Ne2 Kg2 Ra8 Qb5 Ra3 Qa5 Nf6 Qa6 Rf8 h8R Ng8 Ne6 Qc6 Rcc7 Ra8 Ng5 Qe8 Rc5 Nf6 Rf8 Ng8 Rb5 Ra7 Rb2 Ra8 Rc2 Ra7 Bb3 Ra1 Ba2 Ra8 Qb5 Ra3 Qa6
2bk2QK/rPq2qN1/1n6/N1pN1pr1/r1P3R1/1B1NRP2/1RN4B/4Br1r b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 g4 Ng8 g5 Be7 h3 Bf6 h4 Nc6 Bf4 Nd4 Bc1 Ne6 gxf6 g5 Bh3 g4 Bf1 Ng5 hxg5 Bb7 Qd3 Ba6 Qd1 Bc8 Kd2 c5 Ke3 a5 Kf4 d5 b4 h5 e4 d4 e6 a4 Ke5 d3 g6 g3 f3 d2 f7+ Ke7 f8B+ Ke8 b6 h4 g7 g2 e7 a3 b7 a2 b8N h3 b5 h2 b6 Ra3 b7 Qd7 Nc6 Qd3 Nh3 g1Q Nf2 Rb3 Na3 Rh3 Rb1 a1R Na5 Nh6 Kf6 Rh4 g8R Rf4 e5 Rd4 Rb2 Qg2 Rg4 Rd6+ Kg7 Ra6 Kh8 Qd4 Bc4 Rc6 Qg1 d1R Nd3 Rf6 Bd2 Qg3 Be1 Rb4 Bb3 Ra4 c4 Qd7 Nc2 Ng8 Bh6 Rf7 Bf4 Rg7 Qg2 Qc7 Rf1 Kd7 e8N Kd8 e6 Rg5 Nf6 Qf7 Nd5 Nf6 Rg1 Nd7 e7+ Ke8 Rf1 Nb6 Rh1 Kd7 e8N Kd8 Ng7 Rdb1 Bb8 Qgc7 Rf1 Rc1 Rf2 R1a2 Re2 Rd1 Re3 h1R+ Bh4 Rdf1 Qg1 Qce7 Bh2 Qc7 Be1 Kd7 Nc6 Ra7 Na5 Kd8 Qg3 Ra1 Qh3 Ra3 Qh7 Ra4 Qg8+
N1Nn2B1/2N1q1b1/NK1p2pr/1P1p1bR1/N3k3/BrP3Q1/6nP/R2RbB2 b - - 0 1 illegal: Other
1nr1b3/r2Rp2K/pR2B3/4qNN1/R1P1Q2R/PbnRB3/1p1PN3/k2Bb3 b - - 0 1 legal: proof: e4 c5 h4 f5 exf5 g5 hxg5 d5 c3 c4 b3 d4 bxc4 Qd7 cxd4 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 b5 Kh5 h6 Kg6 h5 g4 h4 f4 a6 d5 Kc5 d6 Kb4 d7 h3 f6 h2 f5 Rh3 f7 Rf3 f6 Nh6 Bb2 Rg3 Qc2 Rh3 Bd4 Qe8 d8R Nd7 Nf3 Rh5 Be2 Nb6 Nc3 Ka3 Qe4 Kb2 Kh7 b4 g6 b3 g7 Ra7 g8B Qb5 g5 Nd5 g6 Bg7 f8R Bg4 f7 Bf6 g7 Bh4 Rd7 Be1 Rb8 Qa5 f8R Nf7+ Kg6 Rh4 Rb6 Nd8 Ng5 Nc6 Rf3 Nb8 Rd3 Rh8 Be6 Rc8 g8N Bh5+ Kh6 Be8 Bd1 Qb5 Ne2+ Nc3 Be3 Qe5 Rd8 Ba4 Kh7 Be8 Nh6 Ba4 Rc1 Be8 Rc2+ Ka1 Nf5 Ba4 Rg1 Be8 Rg4 Ba4 Rh4 h1B Qc6 Bf3 R8d7 Bh5 Qe4 Be8 a3 Nb5 Rcc3 b2 Rb3 Nc3 R3b4 Bb3 Ra4
2R3RB/2qP4/1Nr3pR/Qk3r2/3q1pRP/1KRb1PBB/2nNpN2/b5n1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 d5 gxh5 b4 exd5 b3 axb3 Nh6 b4 Ng8 b5 Rh7 Bg2 Rh6 Bf1 Rh8 d4 Kd7 Kd2 f5 Kc3 a5 c6+ Kc7 f3 Kb6 h6 e5 d6 e4 d5 a4 h7 a3 d7 a2 c7 e3 d6 g6 Nd2 e2 Qe1 Ra4 Bh3 Ra5 Kb3 Nf6 c4 Ra6 c5+ Ka5 c6 Ne4 b6 Rg8 h8B Qe7 d8R Nf2 d7 Qc5 b7 Bg7 Bb2 Be5 Rc1 a1Q Rc3 Kb5 Bc1 Rg7 Rg8 Rf7 Ba3 Qd4 Bd6 Qa5 Qa1 Bf6 Bg3 Rb6 Qa3 Na6 b8R Nb4 Qa2 Ba6 c8R Nc2 c7 Bg7 Ra8 Rc6 Qa3 Bb7 Qa1 Qab6 Ra4 Ba6 Qa2 Qe5 Re4 Qbd4 Rg4 f4 Qa3 Rf5 Qa1 Kb6 Qa4 Bd3 Qa5+ Kb7 Rcf8 Qed6 c8N Qc7 Nb6 Be5 Rc8 Bf6 Bg2 Be5 Nh3 Bf6 Ng5 Nh3 Nge4 Ng1 Nf2 Bg7 Rh4 Bf6 Rh6 Bg7 h4 Be5 Bh3 Bf6 Qb4 Ka6 Rh2 Bg7 Qa3+ Kb5 Rg2 Bf8 Qa8 Ba3 Qa7 Bb2 Qa2 Ba1 Qa7 Rcc5 Qa5+ Kc6 Bh2 Rc4 Rg4 Rcc5 Qa3 Kb5 Bg3 Rc6 Qa5+
2b3R1/q4R1N/b1BrNb2/Q3n3/pK1NP1p1/1N1PBkP1/1N2p2R/n2Bn3 b - - 0 1 illegal: No proof kernel
q3R1r1/p1Nb1kP1/Rp2n3/P1p5/n1Rn4/bNQ3NP/3R3R/BBB1K1b1 b - - 0 1 illegal: No proof kernel
B2bR3/1q1P1q2/N7/1pn1K2R/k1N5/BPn1pB2/BpP1bBr1/Nn2R2Q b - - 0 1 illegal: Other
2B5/2qQBbBp/BBr1N2b/2Pp1RN1/1Rp1N3/Pk2b3/n2Pr1b1/3KR3 b - - 0 1 illegal: No proof kernel
3BB3/QpR1R3/1Ppbr1N1/2N3R1/2pNP3/4r2k/n1PKbbr1/B2BB1b1 b - - 0 1 illegal: Other
B1k1Knn1/1NN2p2/6nb/1BR1RpPr/1R3P1Q/1r1Bq1pp/1B4PN/7B b - - 1 2 illegal: Other
3n4/1p1pp3/2PBR1NK/1b1NPR2/P1nN2N1/1QB5/1RpN2r1/1qbBb2k b - - 0 1 illegal: No proof kernel forced: wxLB
2R2k1B/N2K4/1p1P1r2/nn2P1qN/1P2p1B1/1rRRRR2/pp1Qb1B1/2r1N3 b - - 0 1 illegal: Other
2Q1R2R/2p4q/p1BBrB1P/b1p4B/r1Nn1K2/1pP5/PR1N4/k1BNr2r b - - 0 1 illegal: Other
2QK4/b1pB2q1/P1q1B2R/n1P1nq1n/1Rb2N1p/1B3R1r/N5BP/B3kr1N b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 g5 bxa5 Qf6 f4 Qe7 fxg5 Qd8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 e4 h5 g4 b5 c4 f5 a4 b4 a6 h4 a7 b3 a5 d4 c5 b2 g6 d3 g5 d2 a6 Rh5 g7 Bb7 g6 Qd5 Ne2 Bc6 Bg2 Qd6 Ra4 Bb5 Rf1 Rg5 Rf3 Nf6 Rb4 Rg3 Nbc3 b1Q Na2 Nfd7 Bb2 Nc6 Ba1 Rh3 Kg5 f4 Ng3 Na5 Nh1 Bc4 g8N Qc6 g7 Be7+ Nf6 Rf8 g8B+ Rf7 Qe2 d1Q a8R Qd4 Rf8 Bd6 Nd5 Be7+ Kg6 Bf6 Qd1 Qc3 Qa4 Bg7 Qb5 Bh6 Qb7 Qd4 Qc8 Qc3 Rf1 f3 Rd8 f2 Nf4+ Ke7+ e6 Qg7+ Kh5 Ne5 Rd6 Kf6 e7+ Be6 e8B Bg5 Rd8 Bc4 Bd7 Bh6 Be6 Qc2 Ne2 Bd2 Nf4 Qb1 Rd6 Qd3 Rfb1 f1N R1b3 Rd7 Bh7 Bb5 Rbd4 Ng4 Bd5+ Ke5 Bf5 Nb7 Rb1 Ba5 Rb3 Bb6 Rh6 Ba7 Bc4 Qb1 Rf3 Na5 Bb3 Be2 Rb4+ Rd4 Rf6 Bc4 Rg6 Ng3+ Kg5 Nf6 Bg4 Nd7 Bf5 Nh5 Bg4 Qf7 Rh6 Qb2 Bf5 Rd1 Bg4 Kd4 e5 Qf8 e6 Rf1 e7 Ke4 e8B Qbg7+ Ng6 Qff7 Be6 Ne5 B8d7 Qff8 Rf4+ Ke3 Rf2 Qh7 Rf3+ Kd2 Nf4 Qb1 Ra4 Ke1 Rb4 Nd3 Kg6 Qh8 Kf7 Qg7+ Ke8 Ne5 Kd8 Qc2 Qb8 Qf5 Qc8
1B4qq/2nprN2/2R1P3/1pNP2Rb/1K2BnQN/1P1Rbr2/1B2br1R/4k1R1 b - - 0 1 illegal: No proof kernel
R1Bq3N/5P1p/R1BN4/B1rnpp2/k1n2R1R/b4P1N/br2br1P/1RK4Q b - - 0 1 illegal: No proof kernel
N2NR2q/6Bn/bp2B3/1R1P4/1bpq1nRr/rP1nNKB1/2Pkp1Q1/1N5N b - - 0 1 illegal: No proof kernel
4RN2/5Br1/K4kq1/Bp1pRn1b/QBpPq3/2P5/RP1qnN2/N1rn1BB1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bh6 a4 Bg7 a5 Bf6 Bc4 Bd4 Bf1 Bb6 axb6 Kf8 Rh5 Kf7 Rh1 Ke8 d4 Kf7 Kd2 d5 Kc3 a5 g4 e5 f4 c5 b7 h5 g6+ Kf6 g7 c4 Ra2 e4 Be3 a4 Kb4 h4 c3 a3 Qa4 h3 Nd2 h2 Nb3 Qb6 Na1 Ra7 Nh3 Nd7 b8B Nf8 Bc7 Nh6 g8B Ne6 Bg1 e3 Nf2 e2 Bf7 e1Q Bd8+ Re7 Bc7 Qc6 Ka5 Qe4 Bb6 Bd7 Ka6 Be8 g5+ Kg7 g6 Kf6 g7 Rc7 Bg8 Bh5 Bf7 Qe8 Bg8 Qg6 Bf7 Rb7 g8R Re7 Be8 Rg7 Ba5 Rhh7 Bf7 Rh8 Re8 Rf8 Nb3 Rfg8 Ra1 a2 Re1 a1N Re2 Nc2 Na1 Qd3 Re4 Ne3 Re5 Qd2 Rf8 Ke7 f6+ Kd6 f5 Nd1 Re8 Nf4 Be6 Rf8 f7 Ne2 f6 Rh8 f8N Nf5 f7 Rhg8 Rb8 Ke7 Re8+ Kf6 Nd7+ Kg5 f8B Rh8 Bc5 Rhh7 Nf8 Kf6 Bf7 Rh8 Nd3 Rhh7 Bcb4 Rh6 Bf2 Rhh7 Rg1 h1Q Be3 Qf3 Rh1 Qe4 Bg1 Bf3 Nf2 Rh2 R8e7 Bh5 Ra7 Rg2 Rh3 Rh2 Re3 Rh1 Re8 Qeg2 R3e5 Qe4 Raa8 Qed3 Bc7 Kg5+ Ka7 Qc6 Qb3 Qf6 Bh3 Qh6 Bh2 Qe4 Qa2 Rf1 Bg1 Qg6 Bb6 Re1 Bf1 Kf6 Kb7 Nde3 Ra5 Nc1 Ka6 Ne2 Qb3 Rc1 Ra2 Nd1 B6a5 Qgg5 Qc2 Qg6 Qa4
n1kB1N2/2pp4/b1q3Qp/1RNPr1r1/1p2R2B/1nR1N2K/1PP5/B3nBbB b - - 1 3 illegal: Other
RN2N1NB/1pb1Kpnr/2b4R/1NN1p3/B4pb1/1P3P2/P1nq1rk1/R2QB3 b - - 0 1 illegal: Other
r5q1/5r1p/b1BP1Np1/b2N2k1/1pNNR1BR/B2N2R1/1P1p2nP/4nQbK b - - 0 1 illegal: No proof kernel
n1RN1K2/RBBp4/2Br1N1n/k2B1r2/1p1p1Bqp/2N4n/1PQPb2P/2R2r2 b - - 0 1 illegal: Other
1RB2B2/KpBQB2q/2RN4/kP2bppr/5R2/pp1pn1P1/b2P2N1/BN1n4 b - - 0 1 illegal: Other
7Q/bPN3Nr/1B2KN2/2P1NR2/1nP2b2/2p1B1k1/NQ1pr3/1B3R1n b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 f5 axb5 h5 e4 h4 exf5 h3 c3 c6 gxh3 Na6 h4 Qb6 h5 Nb8 Bh3 c5 Qe2 c4 Bg2 Qc5 Bf1 Ra6 Qd1 Qb4 cxb4 Rc6 d3 c3 Qd2 Bb7 Qd1 Rc5 bxc5 Ba8 Qf3 Bd5 Qd1 Bc4 dxc4 Rh6 Qf3 Rh7 Qd1 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 e5+ Kd5 g5 f4 e4 h4 g4 h6 e3 a6 d6 h7 e2 a7 e1R a8N g3 h5 g2 b6 Re2 b7 Re1 h6 Re2 Nc7 Bg7 Be3 Rd2+ Bd3 Rc2 Na3 Rb2 Rh5 Rb3 Qc1 Rb2 Bb1 Rb3 Nf3 g1B Ne5 Rb2 Nc2 Rb3 Nb4 Nc6 Qb2 Bh2 Na2 Nd4 Rg5 Ne2 Rh5 Ng3 Rg5 Nh1 Rh5 Ke7 f6+ Kf8 f5 Bf4 f7 Ke7 f8N Kf6 Nfe6 Ne7+ Ke4 Nc6 Kd5 Bf8 Ng7 Be7 Rg5 Bd8 Rh5 Rb6 Rg5 Re8 h8B Ra6 h7 Nb4+ Ke4 d5+ Kd4 Ke7 Rh5 Rh6 f6+ Kf8 f7 Ke7 f8N Kf6 Rh2 Kg5 Nfd7 Rh5 Rf2 Kh4 Nf6 Kg3 Rf1 Bg5 Rf5 Bf4 Bd3 Rh2 Rf1 Re7 Bb1 Re2 Nge6 Rd7 Bg7 Re7 h8Q Rf7 Bf8 Rd7 Bd6 Rh7 Na6 Ba5 Bc7 Bb6 Ng7 Ba7 Bb6 Nc2+ Kd3 d4 Ke4 d3 Kd5 d2 Ke6 Nb4 Nc7
1r3B2/R2NbqQ1/k2B4/2n2Q1n/P1P1B1K1/rbP2Q2/1Q1QR3/1n1r3N b - - 0 1 legal: proof: e4 f5 d3 a5 b3 a4 bxa4 c5 Ba3 c4 dxc4 Qb6 Bc1 Qd8 exf5 h5 g4 e5 gxh5 b5 f4 b4 fxe5 b3 axb3 Rh7 b4 Rh8 Ke2 d5 Kf3 Kd7 h4 Kc7 f6 Kb6 b5 g5 c3 d4 e6 d3 f7 d2 h6 Bd6 f8B Ne7 h7 Ka7 h5 Kb7 b6 Na6 h6 Ng6 e7 Qc7 e8Q Ra7 Qe4+ Qc6 Ne2 Bf5 Bg2 Bc5 Ba3 Bb4 Ng3 Bc8 Ra2 Be7 Bd6 Bf5 Qf1 d1R Nd2 Ra1 Nb3 Qd5 Re2 Nf4 Qd1 Nh5 Qd2 Rg8 h8Q Nc5 h7 Ka6 b7 Qf7 b8Q Rd7 Qg7 Ra3 h8Q Bh7+ Qef4 Bc2 Qhh7 Bd1 Qhf5 g4+ Kf2 Rh8 Qf3 Bc2 Rb1 Bd1 Nh1 g3+ Ke3 Bc2 Na1 Rd8 Rb7 Bb3 Rc7 Nf6 Kf4 Nh5+ Kg4 Rd7 Bh3 g2 Rb7 g1N Bg2 Nh3 Rc7 Ng5 Qb4 Nge4 Rb7 Bc2 Qb2 Rd8 Nb3 Rb8 Nc1 Bb3 Nd3 Rh6 Ne5 Rf6 Qde3 Nd2 Nd7 Nb1 Qed2 Re6 Q3f4 Re5 Be4 Rd5 Qf3 Rd3 Qdc2 Rd1 Qd2 Qd5 Rc7 Qf7 Ra7+
2q1rN2/7Q/Nn2N1N1/1P1k3n/1p2r1p1/2RR1Qn1/2K1BBPP/4RbN1 b - - 0 1 legal: proof: c4 b5 e4 a5 a4 h5 Qxh5 d5 cxd5 e6 b4 Ba6 Qh7 f5 exf5 Qd7 bxa5 b4 Nc3 Bc8 Nb1 Qb5 axb5 Bc5 Bc4 Be3 Bf1 Bb6 axb6 Ra6 Bc4 Ra4 Bf1 Ra8 Kd1 Ke7 d4 Kd6 f4 g5 f6 c5 f5 c4 f7 g4 f8N e5 f6 e4 b7 c3 f7 e3 Be2 Ra4 Ra3 Nh6 Kc2 Ra6 Nd2 Rb6 Ndf3 Nf5 Nh4 Nd7 b8N Ng3 Na6 Nh5 Ne6 Re8 f8N Rb8 Rb3 Nb6 Nhg6 Rb7 Bd2 Rbe7 Be1 Bd7 Bf2 Bc8 Kc1 c2 Rc3 Ng3 Kb2 c1N Kc2 Nd3 Nf3 Nf4 Re1 Nfh5 Ng1 Ra7 Qf7 Rc7 Qf3 Rc4 Nh7 Kd7 d6 Bb7 d5 Re4 Bc4 e2 Nhf8+ Kc8 Bd3+ Bc6 d7+ Kb7 d6 Bd5 d8Q Bc4 Rc1 e1Q d7 Qe3 Re1 Qc5 Bf1 Qc8 Qe7 Ka7 Be2 Kb7 Bd1 Bf1 Be2 Ka7 Qh7 Kb7 Ng7 Ka7 d8R Kb7 Nc5+ Kc7 Rdd3 Nf4 Bd4 Kd6 Nge6 Kd5 Na6 Nfh5 Bf2#
5Br1/kr1B4/2P3n1/qbrQB3/nR4B1/b2N3P/2QKnPB1/b1RQ2N1 b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 f5 e4 c5 exf5 c4 a4 c3 axb5 Rh6 dxc3 Rh7 c4 Rh6 c5 Rh8 c4 g5 b6 e5 a6 d5 a7 Kd7 b7 Kc7 h3 e4 c6 Kb6 f6 d4 f7 g4 c7 g3 h6 g2 h7 d3 Bb2 e3 Be2 Na6 Nd2 Bd7 c8B Rb8 a8B Ba3 f8B Bb5 c5+ Ka7 Be5 Ne7 Rb1 Rg8 h8Q Ng6 Qh5 Qa5 Beg4 e2 Bcd7 Rc8 Rb4 Rc7 Ngf3 g1N Nb3 Rc6 Kd2 e1B+ Ke3 d2 Nc1 Rc8 Nd3 Ne2 Ng1 Rb8 Qc2 d1R Qf5 Ra1 Qf7 Rb1 Qd5 Bc3 Qd1 Ba1 Kd2 Rc8 Qc2 Nc7 Qd1 Ne6 b8Q+ Ka6 Qbd6+ Ka7 Q5b3 Rc7 Bg2 Rc1 c6 Nc5 Qde6 Na4 Qed5 Rc5 Qbc2 Rb7 Nf3 Nc1 Rf1 Ne2 Ng1 Qb6 Qdb1 Qa5 Rc1 Rb6 Qd1 Rb7 Qbc2
1B1k2R1/r4qB1/NKQ1r1N1/4PP2/bQ1n4/1NRb2Nb/5N1P/1B1nqb2 b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 h5 g4 a4 gxh5 a3 bxa3 Rh7 a4 Rh6 a5 Rh8 Bd2 f5 Be3 e5 Bc1 Be7 e3 Bg5 fxe5 f4 Ke2 f3+ Ke1 Bf4 exf4 Rh6 Bb5 Rh7 Bf1 Rh8 Kd2 d5 Kd3 g5 Kd4 b5 a4 g4 c4 g3 a6 b4 f5 b3 a5 g2 c6 f2 Kc5 d4 a7 b2 a6 d3 c7 d2 h6 Qh4 h7 Qg5 Qe1 d1B Nh3 g1Q Bd3 f1B+ Nf2 Bb7 c8N Bh5 Ra3 Bh3 Kb6 Qf1 c5 Qg6+ c6 Ne7 Nd6+ Kd8 c7+ Kd7 c8N Rg8 h8B Kd8 Qb4 Nec6 Be3 Qc1 Rc3 B5g4 Rg1 Bf1 Nd2 b1B Nb3 Ne7 Bg7 Qf7 Nde4 Bc6 Ng3 Re8 Bc5 Bgh3 Bd6 Bd7 Be4 Nbc6 Bb8 Qe1 Bc2 Ng6 Ne7 Nf4 Ng6 Nd4 Bd3 Ng2 Bc2 Ba2 Bb1 Ne3 Nc1 Ne6 Nge2 Qg8 Nh8 Bc4 Nb3 Nc5 Bh6 Bd5 Rg7 Bb5 Rg5 Bbc4 Ng3 Bc6 Bf8 Bd7 Rg7 Bce2 Ng6 Qf7 Rg8 Bc6 Bg7 Ne6 Qf4 Beb5 Qb4 Bbd3 Bd6 Rc8 a8Q Nd4 a7 Nd1 Bb8 Ba4 Qc6 Rc7 a8N Ra7 Nc7 Bhg2 Nf8 Bh3 Na6 Re6 Ng6+
2n1nKRr/QB3Q2/2nB1nB1/BR2nq2/B4PkP/5P1N/1Q2b2b/4b2N b - - 0 1 legal: proof: b4 b5 a4 f5 axb5 c5 d4 h5 dxc5 a5 g4 f4 gxh5 a4 e3 Ra7 exf4 Ra5 bxa5 Qc7 Qd2 Qb6 Qd1 Qd8 Ke2 Kf7 Kd3 Ke6 Kc4 Kf5 Kd5 e5 h4 g5 c4 e4 b6 d6 h6 e3 b7 g4 c6 e2 h7 e1N c5 a3 a6 a2 a7 g3 a8Q g2 c7 Qg5 c6 Be7 Bb5 Bd8 Nh3 g1B Qa7 Qh5 Nd2 Bh2 Ne4 Na6 b8B Nf3 Rb1 a1N Rg1 Ne5 Qb3 Nc2 Ba4 Nd4 Ng3+ Kg4 Bd2 Qf5 Ba5 Bd7 c8B Be8 c7 Bb5 Rh1 Ndc6 Bb7 Be2 c8B Bb6 Bd7 Bd4 Rhf1 Bc3 Be8 Be1 Bf7 Qg6 Qa2 Nf6+ Ke6 d5 Rg1 d4 Rb5 d3 Bd6 d2 Qc4 Qg5 Bg6 d1N Qb3 Nb2 Nh1+ Bg3 Rg2 Nbc4 Rg1 Nb6 Qb2 Rd8 h8Q Nc8 Qg7 Rf8 Qf7 Rh8 Rf1 Bh2 Rg1+ Kf3 Bgc2 Qh5 Rg8 Qh7 Bg6 Nc7+ Kf5 Nce8 Ke6 Ned7 Qe7 Qh5 Kf7 Ne5+ Kf8 Kg4 Qf7 Qf5 f3+
1k2KB2/2B3B1/b1B4q/2nPP3/b1Rq1Q2/1nQ1q1RN/5NP1/r2BnqN1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 Qd7 a4 Qd6 axb5 Qd8 e4 Kd7 d4 g5 hxg5 Nc6 d6 Ke6 d7 Kd6 d5 Nb8 f4 a5 Qa4 e6 Qd1 Ke7 e5 Ra6 Bd3 Rd6 Bc4 Bg7 Bf1 Kf8 exd6 e5 Bc4 e4 Bf1 Be5 fxe5 Bb7 Bf4 Ba6 Bc1 Bc8 Ke2 c5 Ke3 f5 Kf4 h5 b4 h4 b6 h3 b5 a4 b7 c4 g6 e3 g7+ Kf7 b6 c3 Qb3 c2 Ba3 c1Q Nc3 h2 Nd1 Qc6 Be2 Nh6 Nf2 Na6 b8B Nc5 b7 Qdb6 Kg5 f4 d8N+ Ke8 Kf6 Kd7 g8B f3 Bd1 e2 Bc7 e1N b8Q Ba6 Rc1 Nf5 Kf7 Nd4 Qc3 Ndb3 Ne6 Rh6 Qa7 Kc8 Nf4 Rh3 Bb4 a3 Bh7 a2 Bg6 Rh8 N4h3 a1Q Ke7 Bb5 Be8 Ba4 Qa5 Qcb5 Bc6 Qf1 Qd4 Rh6 Qf4 Qd4 Ke8 Rh5 Rc4 Rh7 Bd8 Kb8 Bf6 Ra7 d7 Qe3 d8B Qd4 Ng4 f2 Bg7 Ra8 Bb5 Qh6 Bc6 Qe2 Ba3 f1B Qc3 Qee3 Ngf2 Be2 Nf3 Ra6 Rf1 h1Q Nfg1 Ne4 Baf8 Nec5 Ng4 Ra8 Rf3 Ra7 Ngf2 Bd3 Ne2 Qf1 Rg3 Ra5 Rb4+ Bdb5 Rc4 Ba6 Bb6 B4b5 Neg1 Ra1 Ba5 Ba4 Bc7+
3Bnrqr/2R1r1RR/2RbNb2/Pq3r1b/8/1k3P1K/1R1P1QB1/1Q2Q2N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a6 Kf7 h4 g5 a4 e5 d6 b5 d7 c5 f6 Ke6 a5 Kd5 a7 c4 f7 e4 h6 g4 h5 b4 h7 b3 h6 e3 Ne2 g3 Bb2 g2 Ra2 g1B Na3 c3 Ng3 c2 Bf6 c1R Nb5 e2 Nd4 Kc4 f3 Qe8 d8Q b2 Qb6 b1Q Rh5 Rc2 Rg5 Nc6 Nh1 Nb4 Rg7 Bg4 Bh3 Bh2 Kf2 e1R Kg2 Be7 f8R Bh5 Rff7 Nd3 Qb8 Re5 Qe1 Rf5 Qb7 Rb8 a8Q Qc8 Bg5 Nf6 Qaa7 Rd8 h8R Bg4 h7 Bh5 Re8 Be5 Ne6 B7d6 h8R Qb6 Qbe4+ Kb3 Rhh7 Qb5 Qaf2 Nb2 Ra7 Rc1 Qb1 Rc7 Ree7 Ra8 Ra6 Rh8 Rc6 Qg8 Bh4 Re8 Bg5 Rcc8 Rec7 Rf8 Bh4 Rf7 Bg5 Rcf8 Bh4 Ne8 Bd8 Rf4 Kh2 Bf6 Bg2 Re7 Kh3 Rf5 Rxb2+
Q4B2/KP2BQRR/B2R4/2nrP1qq/R6q/1bN1k2N/3P1R2/1bq2bn1 b - - 0 1 illegal: Other
1B4Qb/1nPB2N1/2P1b3/1P1bQnB1/1R3Qk1/2K1Rn2/rrN2rb1/4QQ2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 g4 e5 f4 a5 c4 h5 b4 d5 b6 a4 b5 a3 c6 a2 c7 h4 g6+ Kf6 g5+ Kg7 c5 h3 b7 d4 c6 d3 Kc3 d2 Na3 h2 Rb1 a1R Bh3 e4 Nf3 e3 Nc2 e2 Qe1 d1B Nfd4 Qd5 Rb4 Nd7 b8B Nh6 f6+ Kg8 g7 Kf7 f5 Rb1 Bg4 Ra2 Ne6 Qd6 Rf1 h1B Rf3 Rg8 Re3 Bd5 Bd2 Qf4 g6+ Ke8 f7+ Ke7 Bc1 Nc5 f6+ Kd6 Bh3 Rbb2 Bf5 Be7 f8Q Nb7 Qe8 Rf8 g8Q Bd8 Ng7 Bce6 Bg4 Nf5 f7 Bg2 Qh7 Bf6+ Nd4 Bed5 Qh2 B1b3 Qe4 Be6 Qe5+ Ke7 Nc2 Bbd5 Nh5 Bh8 g7 Qf2 g8Q Qf4 Qf1 e1N Ng7 Nf3 Qe1 N5d4 Qe4 Kf6 Qe5+ Kg6 Bf5+ Kg5 Bd2 Bc8 Bd7+ Nf5 Bc1 Kg4 Bd2 Re8 f8Q Rd8 Qc5 Re8 Qc4 Rf8 Qcf1 Rf6 Be8 Bce6 Bd7 Rf8 Rd3 Qe4 Bg5 Qf4 Re3 Rd8 Ra4 Be4 Be8 Rd2 Rb4 Rf2 Bd7 B4d5 Qhxf4+
2n2rn1/2BrBqQ1/rP1P1B2/kqB5/6n1/1Nqn3Q/PQ1R3N/KR5B b - - 0 1 legal: proof: e4 d5 g4 b5 b4 e5 c3 h5 gxh5 a5 bxa5 b4 f3 b3 exd5 e4 Na3 e3 Nb1 Bb4 cxb4 Ba6 Bg2 Bd3 Bf1 Be4 fxe4 Kf8 Bb5 Ke7 Bf1 Ke8 d4 Kd7 h4 g5 b5 c5 h6 Kc7 b6+ Kb7 e5 f5 e6 e2 Kd2 Ka6 Kc3 b2 e7 f4 e8Q f3 h7 f2 d6 c4 d5 e1Q+ Qd2 g4 d7 g3 d6 g2 h5 Qc7 d8B Qe6 h6 Qh3+ Nf3 g1Q Bg2 f1R Qf8 Qhc8 Qg7 Qc6 Rh2 Qh3 Bh1 Qgg2 Bc7 Qg6 Re2 Qhd7 Nh2 Qgf7 Qc2 Rf2 Nd2 b1N+ Kb2 Nc3 Nb3 Nb5 Bg5 Na7 Rb1 c3+ Ka1 Nc8 Qb2 c2 Rd2 c1N Be7 Kb5 a6 Qc3 a7 Nc6 Nf1 Ne5 Nh2 Rb8 a8Q Ncd3 Qe4 Ng4 Qg2 Ra8 Qh3 Ra6 Re2 N8f6 Rd2 Rd8 h8B Ng8 h7 Qdc6 Qf8 Rf3 Bhf6 Rd7 h8B Ka4 Bd4 Qb5 Bhf6 Kb4 Bc5+ Ka4 Nd4 Ka5 Qg7 Qe6 Be5 Rf8 B5f6 Qf7 Nb3+
4b2q/q1r2rNR/rk4BB/2R5/P1BP1r1P/1KRQR3/nQ1Rq3/2q4N b - - 0 1 legal: proof: e4 d5 c4 a5 cxd5 f5 exf5 h5 b4 h4 bxa5 h3 g3 Be6 Bd3 Bd7 Bf1 Bc8 Ba6 g5 Qg4 Bg7 Qe2 g4 Qd1 Bf6 Be2 Nc6 Bf1 Bh4 Bb2 Nd4 Bc1 Ne2 gxh4 g3 Bb2 g2 Bc1 Ng3 hxg3 Ra7 Qe2 Ra6 Qd1 Ra8 a4 Kd7 f4 c5 f6 Kc7 d6+ Kc6 f7 b5 f8Q e5 d7 c4 g4 e4 f5 c3 f6 c2 f7 b4 a6 b3 a7 b2 g5 h2 g6 e3 g7 e2 Nf3 g1R Ng5 Kb7 Qb4+ Kc7 f8R Rg4 Ra3 Qe8 d8R Rf4 Nc3 b1Q Qb2 Rb4 Rf3 Qe6 Nce4 Ne7 g8B Qe5 Ng3 Bd7 Ne6+ Kc6 Bf7 Rf8 Bg6 Qh8 d3 Rf5 Bh6 c1R Kd2 Be8 Rd5 Rc5 Rc3 Rbf4 Rf2 Qa1 Kc2 e1Q Kb3 Qc1 Qf3 Kb7 Rd2 Nc6 Rd7+ Ka6 Rh7 Nb4 Ng7 Rf7 Rg1 h1Q d4+ Kb6 Bc4 Qf2 Re1 Na2 Qd3 Qb7 Nh1 Rcc7 Re4 Qe2 Re3 Rb8 a8R Qa6 Ra7 Ra8 Nh5 Qb7 Ra5 Ra6 Rc5 Qa7 Ng7
2q1Q1qR/nNr2P2/3R1R1P/1R5q/3BRn2/NKP1n2B/1N2n3/2Q1qb1k b - - 0 1 legal: proof: e4 f5 exf5 c5 g4 b5 a4 h5 axb5 h4 d4 a6 dxc5 Qb6 Ne2 Qc7 Ng1 Qd8 Bg5 a5 Bh3 Rh5 Bh6 g5 gxh5 g4 Ra3 g3 Ra1 Bg7 Bc1 Be5 Bf1 g2 Ne2 Bg3 hxg3 Ra6 Ng1 Rh6 Be2 Rh7 Bf1 Rh8 Kd2 Kf7 Kc3 Kf6 b4 Ke5 f4+ Ke4 h6 d5 f6 e5 f7 a4 f8R h3 b6 a3 c6 a2 c7 h2 b5 d4+ Kb3 d3 g4 d2 b7 Bd7 c8N Ke3 g5 Kf2 f5 e4 f6 e3 b6 e2 c3 e1Q g6 Qe5 g7 Qe4 Ne2 g1N Bh3 Bb5 Nf4 Qg2 Nd3+ Kg3 Na3 Ne2 Re1 h1Q Nd6 Kh2 Nb2 Ne7 g8R Nbc6 b8R Qc8 b7 Rh7 Rh8 Nd5 Rd8 Rc7 f7 Bd3 Rf1 Qgg1 Rf6 Ndf4 Qc2 d1Q Be3 Qg8 Bd4 Qde1 Qc1 Na7 Re8 Qf3 Re4 Kh1 Rb1 Qfg4 Ra8 Qh4 b8Q Qh5 Nb7 a1N+ Kb4 Qcg4 Qe8 Nc2+ Kb3 Ne3 Rd8 Qc8 Rd7 Ng1 Rd5 Bf1 Rdd6 Nge2 Na4 Rd7 Ka2 Qc6 Rb5 Qc8 Kb3 Rc7 Nb2
1b1r3b/B1k1PPbR/1NN5/R1Nn1B2/QP1Rq2r/7R/1KpQ4/1R1rn3 b - - 0 1 legal: proof: c4 b5 g4 h5 gxh5 f5 e4 e5 exf5 d5 cxd5 e4 a4 e3 axb5 Ba3 d3 Bf8 d6 Be6 Qa4 Bd5 Qd1 Be4 dxe4 Qc8 Bh3 Qd7 Bf1 Qd8 h4 Kd7 f4 c5 b4 g5 b6 a5 b7 c4 e5 a4 e6+ Kc6 h6 a3 f6 a2 f7 g4 d7 g3 h7 g2 h5 e2 Kd2 e1B+ Kc2 c3 h6 Ra5 f5 Nf6 e7 Qb6 d8Q Re5 Ne2 g1B Ng3 Qf2+ Q8d2 Qa7 Bh3 Bg7 f8R Rc5 Na3 Bef2 Ne4 Nh5 f6 Qa8 f7 Bh2 Bf5 Bf4 Rd8 Rc4 Rd4 Na6 b8N+ Kc7 Nc5 Nf6 Nc6 Rd8 h8R Nd5 h7 Bh2 Rb1 a1R Re8 Bh4 h8R Bhf6 Rh7 Bh8 Rg8 Bfg7 Kb3 Bd6 R1h3 c2 Kb2 Bh2 Qf3 Qb7 Qb3 Bhe5 Qa4 Bg3 Nd3 Nc5 Rf8 Ne6 Re8 Nef4 Nc5 Ng2 Rf8 Ne1 Re8 Rc3 Nc4 Rf3 Nb6 Rf4 Rg8 Rh4 Re8 Rd6 Ra8 Rd8 Nb8 Qc6 Ra5 Qe6 Nc6 Qe4 Nd3 B3e5 Nc5 Rh5 Nb7 Qf3 Qf4 Qe2 Nc4 Rh6 Be3 Rdd6 Rd1 Rd8 Bg1 Qg2 Qd2 Qe4 Be3 Rh4 Bf2 Nc3 Rd7+ Kc8 Ba7 Bb8 Rd4+ Kc7 Nc5 Nd5 Nb6 Ra3 Rb1 Rd3 Qf2 Rd1 Qd2
rR1KB3/1R1PR1P1/8/2Q2N2/nNbn1NNq/1Q2n1Bp/2r1PbN1/k6b b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Ra6 cxd3 Be6 d4 Ra8 d5 Bc8 Kf2 Ke7 Kf3 f5 Kf4 h5 d4 c5 g4 c4 b6 h4 b7 h3 g6 c3 Kg5 c2 g7 f4 a6 f3 e6 Kd6+ e7 f2 a7 Be6 Nf3 Qc7 e8N+ Ke7 d6+ Kd7 d5 Qc5 Bg2 f1B Nc3 Ne7 Kf6 Qe3 g8N Qd2 g5 Rh4 g6 Rd4 g7 Na6 b8R Bf5 Na2 Ra4 Nb4 Ra3 Nh4 Ra4 Nh6 Ra5 Ng4 Qe1 Bf4 c1N Qb3 Bd3 Bg3 Ra2 Bf3 Rb2 Ng2 Nc5 Be4 Rc2 Bg6 Nf5 Rb7+ Kd8 d7 Bc4 Nd6 Na4 Be8 Ne3 Nf5 Bc5 Ke6 Qf2 Kf7 Qf4 Rb8+ Kc7 d8N Bb6 Ke7 Bd4 Nb7 Kb6 d6 Qf2 Nd8+ Ka5 Ne6 Qf4 d7 Qh6 Kd8 Qh4+ Kc8 Bb6 Nef4 Bc5 Ra3 Bb6 Ne1 Bg2 Rf1 Bh1 Neg2 Kb5 Rd1 Kc5 Rd4 Kb5 Re4 Ka5 Re7 Kb5 Qd3 Nb3 Ra1 Nd4 Rb1 Nb2 Qd1 Ka4 Qg1 Bc5 Kd8 Ka3 Qf2 Na4 Qf3 Bd6 Qd5 Be5 Qc5 Bf6 Nc6+ Ka2 Rb7 Ka1 Nb4 Bg5 Rc8 Rb8 a8Q Bf6 Qaa5 Ra8 Qab5 Be5 Rcb8 Bd6 Qc7 Bc5 Qcc6 Ba7 Qcc5 Nb3 Qc7 Nd1 Na2 Bf2 Qcc5 Nd4 Qb3 Ne3 Nb4
1r1B4/pQ3B2/2PkbR1N/qR2R1K1/3R1N2/r3P2q/RQ1nnP1b/5qQ1 b - - 0 1 legal: proof: d4 b5 a4 c5 axb5 Qb6 dxc5 Qd8 g4 h5 gxh5 Ba6 Kd2 Bb7 Ke1 Bc8 Bg5 Qc7 Qd5 Kd8 Qxf7 Qb6 Bxe7+ Kc7 Bh4 Qf6 Bg5 Qe7 Bf6 Qe8 Be7 Qd8 Kd2 d5 Ke3 g5 h4 g4 Kf4 g3 c4 g2 b4 d4 c6 d3 c5 d2 e3 d1Q h6 Q1d5 h5 Qd2 h7 Q2d7 h6 Qh3 Ra2 Qd2 Nf3 g1Q Nh2 Qb2 Qg6 Qb3 Bc4 Bg7 Bf7 Bb2 Nc3 Ba3 Ne2 Qa1 Rd1 Qg7 Kg5 Bc1 Rd4 Bb2 Nf4 Bd7 b6+ Kc8 b7+ Kc7 b5 Qf1 Ng4 Na6 b8R Qc3 Rf8 Nb8 Bf6 Be6 Bd8+ Kc8 c7 Nf6 b6 Qa5 Re8 Nc6 Rf8 Rg8 h8Q Rb8 h7 Kb7 Nh6 Ne4+ Kh5 Kc8 Qg1 Qgg2 Qe5 Rb7 h8R Nd2 Re8 Rg4 Rhf8 Rb8 Qf6 Qf3 Qg7 Rh4+ Kg5 Q3h3 Qe5 Nb4 Qh8 Nd5 b7+ Kd7 c6+ Kd6 c8Q Ba3 Rc4 Bc5 Qb2 Nc3 Re7 Ne2 Rd4+ Bd5 Re5 Bb6 Nd3 Re4 Nf4 Bc7 Rd3 Ra4 Rd4 Ra8 b8R Ra3 Rb5 Rb8 Ra4 Bb3 Qb7 Be6 Rd4+ Bd5 Bh5 Qa6 Nd3 Qa5 Ref5 Ke6 R8f7 Bg3 Re5+ Kd6 Nf4 Bh2 Rff5 Nc1 Bf7 Ne2 Ra4 Bc4 Rf6+ Be6 Rd4+
3bR1Br/n1rQ1PQp/Q2Qn2b/4K1R1/3QN3/1q6/P1B3PB/1N2rk1r b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 g5 bxa5 f5 h4 f4 hxg5 f3 exf3 Bg4 fxg4 Nd7 f4 Nb8 f5 Ra7 Ba3 Ra6 Bc1 Ra8 Kf2 Kd7 Kf3 Kd6 Kf4 Kc5 d4+ Kb4 d6 b5 g6 c5 d5 e6 f6 c4 a6 c3 g5 c2 a7 Bh6 g7 Qb6 f7 Na6 d7 Qb8+ d6 Nc5 d8Q Ne7 g8Q Nc8 Ne2 Kc4 Qg7 b4 Ke5 b3 g6 b2 Bf4 c1B Bh2 Qb3 d7 Bcg5 Qd6 Bh4 Q8b6 Bd8 Qb7 Rb8 a8Q Na7 Qc8 Rb7 Ng3+ Qd3 Be2 Rc7 Bd1 Qc2 Ne4 Qb3 Qdf8 Kd3 Bc2+ Ke2 Qd6 Nb5 Rf1 Na7 Rf5 Ke1 Rg5 Kf1 Na3+ b1R Qad5 Rd1 Qd4 Rc1 Nb1 Rd1 Qgf8 Re1 g7 Rd1 g8B Rc1 Kf4 e5+ Kf5 Ne6 Qg7 Ke2 Qb7 Rh1 Qba6+ Ke1 Nec3 e4 Ke5 e3 Ne4 Be7 d8Q e2 Q8d7 Kf1 Qac8 e1R Qca6+ Qd3 Nc3 Qc4 Rb1 Bd8 Rb8 Qd3 Nb1 Qc4 Qa5 Qb3 Qab6 Be7 Re8 Bd8 Qa6+
2n2n1B/1B4N1/4r1r1/6Qq/RQK1PP2/N3b3/NNRqPpqR/3rkN2 b - - 0 1 legal: proof: h4 b5 c4 f5 a4 d5 cxd5 e5 axb5 g5 hxg5 e4 f3 f4 fxe4 f3 Qc2 f2+ Kd1 Ke7 Qa4 Bg4 Kc2 Bf3 gxf3 Kd7 Kd3 Na6 Qd1 Nb8 Kc2 Ke8 Kd3 Kf7 b4 Kg6 b6 h5 b5 c5 b7 a5 b6 a4 d6 a3 f4 h4 d7 Kh5 g6 Kg4 g7 Kg3 Qe1 a2 Rh2 h3 Nf3 Nc6 b8R Nge7 g8Q+ Ng6 b7 Rh5 Bb2 Ra6 Kc4 Ra5 d4 Rh7 d5 Bd6 Bh8 Re7 Na3 Re5 Rc8 Na7 b8N Qe8 d8N Re6 Nd2 Ra6 Nf7 Bc7 d6 Bb6 Rc7 Nc8 Ne5 Qf7 Qd8 Nf8 d7 Qh5 Nd3 Ba7 Bg2 Rg6 Qf6 Re6 d8N Bb6 Nbc6 Ba7 Rd1 a1R Ncb4 Bb6 Rc1 Rb1 Rc3 Rd1 Na2 Ba7 Rc2 Bb6 Rh1 h2 Bh3 Ba7 Bf5 Kg2 Nf1 Bb6 Qb4 Ba7 Kc3 c4 Nb2 Be3 Bg4 Bd2+ Kd4 c3 Ra7 Bc1+ Kc4 Be3 Rd2 c2 Qg5 c1Q+ Rc2 Qd2 Ra4 Ra6 Ne6 Rb6 Ng7 Rbd6 Ng3 Rde6 Re1 h1Q Nf1 Kg1 Bh3+ Qg2 Bf5 Rd6 Bd7 Rde6 Bc6 Qgg4 Ng3+ Kg2 Rh1 Qf3 Rh3 Kg1 Rh2 Qg2 N3f5 Kf1 Bb7 Ke1 Ng3 Ra1 Nf1 Rb1 Ba8 Rd1 Bb7
1n6/2B3K1/1RB1NR1P/R1br3k/R1P3p1/2Q1Qq1P/q3Nq1b/b1r3BR b - - 0 1 legal: proof: d4 b5 g4 e5 e4 c5 dxc5 d5 a4 h5 axb5 d4 gxh5 Bb7 f4 Bd5 exd5 e4 Ra4 Nd7 Ra1 Ne5 fxe5 Bd6 Na3 Be7 Nb1 Bf8 Kd2 g5 b4 a5 c4 f5 h3 Kf7 d6 g4 d7 f4 c6 e3+ Kd3 f3 Ke4 a4 Kf5 d3 e6+ Kg7 h6+ Kh7 e7 e2 e8Q e1B c7 f2 c8R a3 b6 a2 b7 d2 b8B Ra4 b5 Bc5 b6 Bd6 b7 Bg3 Rc5 Bd6 Qe3 Ra5 Qdb3 d1Q Bc7 Bf4 b8R Nf6 Nf3 Bb4 Qbc3 Re8 Bg2 f1Q Rb6 Qa8 d8R Qf2 Rdd6 Nd7 Nd4 Qdf3 Ne6 Nb8 Kf6 Bh2+ Rf5 Re5 Rd5 Qa6 Ra5 Bc5 Kf7 Rd8 Rf6 Rd1 Ba3 Rc1 Bb4 Q3g3 Bc6 Qgf3 Ba3 Rd5 Ra4 Be7 Bc5 Bf8 Qb3 Bfd6 Nc3 Qa8 Bd4 Bc5 Ne2 Qa5 Qbc3 Qa7 Rab1 a1B R1b5 Qa5 Qe1 Qd2 Rba5 Qb2 Q1c3 Qa2 Rf4 Rd6 Kf8 Kg6 Rf6+ Kh5 Kg7 Rd5 Qf4 Qe1 Bg1 Qef2 Qfe3
KRQ4Q/6p1/nBP1bqN1/qP1NR3/PQQkBq2/r3n3/Q3n3/1Rb5 b - - 0 1 illegal: No possible last move
BkQ1N1b1/1P3B1r/4B3/1nPb1N1p/1BQN4/1RP2b2/q1B2n1K/n3q2R b - - 0 1 legal: proof: d4 b5 g4 e5 f4 c5 fxe5 a5 dxc5 f5 a4 g5 axb5 f4 h3 Bh6 h4 Ra6 Nf3 Rf6 Ng1 Rf5 gxf5 g4 Ra4 Ne7 Ra1 Bg5 hxg5 Ng8 Kf2 h5 Kg2 d5 b4 Kd7 e4 Kc7 f6 f3+ Kh2 d4 g6 f2 g7 d3 e6 a4 e7 a3 e8B a2 f7 d2 f8Q Nc6 e5 Rh6 b6+ Kb7 c3 Be6 b5 Qc7 Bd3 f1B Qa4 d1B Nf3 Qc8 Nd4 Qb8 Bf7 Nf6 g8B Bh3 Qc4 Bd7 Bc2 Bf1 Qc8+ Ka8 b7+ Ka7 Nf5 Qa8 b8N Be8 e6 Ne4 e7 Nf2 Nd7 Bf3 Nf6 Rh7 Nd2 Nd4 Ba3 B1g2 Rab1 a1N Nb3 Qd5 Be6 Bf7 e8B Qa8 Bc6 g3+ Kg1 Bd5 Ne8 Bgf3 Bb4 g2 Bb7 Bg4 Kh2 Bgf3 Qc6 Kb8 b6 Qa3 Ba8 Nb5 b7 Qa2 Nbd4 Na3 Kg3 Nb5 Rb3 g1Q+ Kf4 Qd1 Kg3 Qe1 Kh2 Rh6 Bh7 Bg8 Bg6 Rh8 Bgf7 Rh7 Qc8+
1RBBk2K/1PPQ1q2/2B2Q2/1qn3r1/R1bR1bq1/R1N1Pp1b/8/n3R2N b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 g5 Ke3 d5 Kd4 a5 h4 f5 c4 f4 b4 f3 b6 a4 h6 g4 b7 a3 e6 g3 Ke5 d4 b5 a2 b6 g2 h5 d3 h7 d2 e7 Bf5 h6 Na6 b8R Ra7 b7 Qc8 c6 Bd3 c5 Nc7 Nh3 g1Q Nf2 Bb5 Nc3 Nf6 Rh4 Ra8 Rd4 Qg2 Nh1 Na6 c7 Qg6 c6 Rg8 h8R Nb4 h7 Nc2 Bh3 Ne4 Bd7+ Kf7 e8R Bc4 Ba3 Bh6 Be7 Nc5 Bd8 Ra5 e3 Rg7 Rhg8 Bf1 h8Q Bh3 Ra8 Rb5 Ra3 Rh7 Rc1 a1Q Rb1 Qd3 Rgg4 Qa2 Rda4 Qdc4 Rd4 Na1 Qb3 Qb2 Re1 d1B Qa2 Be2 Qb3 Qa8 c8B Qa2 c7 Qa6 Bc6 Qa5 Rd5 Qg4 Rdd4+ Bc4 Qd1 Qb6 Qd3 Ra5 Qe4 Qb5 Qd5+ Kg6 Qf8 Rd7 Qg7+ Kh5 Qe7 Bf4+ Kf6+ Kh6 Kf7 Qab3 Kf8 Kg6 Kg8 Qa2 Qh4 Qab3 Kh8 Qa2 Re6+ Kf7 Rg6+ Ke8 Qf6 Qc2 Rg7 Qcg6 Rh7 Qf7 Rh5 Qb2 Rh4 Rb5 Ra8 Ra5 Rb8 Qb5 Re4+ Ne6 Qg7 Be5 Rd4 Qb2 Rf4 Qgg6 Nf2 Be2 Rfa4 Bc4 Rd4 Bf4 Qf5 Qg4 Qgf6 Qb1 Qe4 Rg5 Nh1 Qb5 Qd5 Nc5 Qxd7+
1q1N1KB1/PqRQpP2/3R2k1/q4N1n/3R3n/rQ1Q1b2/1r1rQ2P/3QB3 b - - 0 1 legal: proof: e4 d5 g4 a5 b4 f5 bxa5 d4 exf5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 a3 b5 Qf3 h5 gxh5 b4 Bd3 b3 Bf1 g6 Qd1 Bg7 Ra2 Bc3 Ra1 Bb4 axb4 Qd7 Qc2 Qd6 Qd1 Qd8 Ke2 Kf7 Ke3 c5 Kf4 g5+ Ke5 c4 f4 g4 d4 g3 a6 c3 d6 b2 h6 g2 d5 c2 a7 Be6 d7 Qe8 d8Q Qf8 h7 Nf6 b5 Ne8 d6 Rg8 h8Q Ng7 b6 Ne8 d7 Nf6 b7 Ne8 f6 Bc4 f5 Rg7 Ra6 Nc7 Qh3 Rg8 Qhd3 Ne8 Rd6 Nc7 Na3 b1R Nh3 g1Q Bd2 c1Q Nf4 Bb3 Ne6 Qf2 Nb5 Qh6 Be1 Qc6 Nbd4 Qh5 Qc8 Rg6 d8R Nd5 Qd7 Ne3 Bg2 Rb2 Bd5 Ba4 Rc8 Qb6 Rc7 Ng2 Rg1 Nh4 Rg4 Qg2 Nd8+ Kf8 Ke6 Bc6 Rf4 Rg3 f7 Kg7 f8Q+ Kh7 Ba2 Bf3 f6+ Qf5+ Kf7 Qh1 Q3d2 Qfa5 Nf5 Qb3+ Ke8 Kg6 Q2e2 Qbb5 Bg8 Rd2 Qc6 Nd7 b8Q Qe5 Qbb6 Rb8 Rfd4 Qg2 Qba6 Rbb2 Qad3 Qeb5 Qd5 Qb8 Q5b3 Qh1 Bd5 Rh3 Qh8 Qg2 Bg8 Rg3 f7+ Nf6+ Kf8 Qh1 R6d5 Nh5 Rdd7 Bg4 Qhe5 Qhb7 Qeb5 Bf3 R7d5 Rg2 Rdd7 Ra2 R7d5 Ra3 Qd7 Rb2 Qee4 Rgc2 Qee2 Rd2 Rd6+
r1Q2R2/Q1Kn2R1/B2PR3/Rrp4r/2r1NR2/BNP3P1/b2Qk1b1/1r4q1 b - - 0 1 legal: proof: f4 b5 e4 g5 a4 d5 axb5 f5 exd5 e5 g3 g4 Ne2 Bh6 fxe5 f4 Ng1 f3 Bg2 Nc6 Bf1 Nd4 Bg2 Nf5 Bf1 Bf4 gxf4 g3 Qe2 g2 Qd1 Ng3 hxg3 Bd7 Nc3 Be6 Nb1 Bc8 Kf2 Ke7 Ke3 h5 Kd4 a5 Kc5 f2 Kc6 h4 b4 a4 d4 h3 d6+ Ke6 f5+ Kf7 c3 a3 e6+ Kf6 d5 Ke5 e7 Ke4 e8R+ Be6 d7 a2 d6 h2 f6 Rh6 f7 Rc8 f8R Rh7 b6 Qg5 d8Q Qa5 b7 Rg7 b8R Rg6 b5 Qa6+ b6 Qa7 b7 Rg5 Ba3 Ke3 Rf4 Rb5 Nh3 g1R Nd2 Nf6 Ng5 Nd7 Nge4 Bc4 Bd3 f1B Re6 Bg2 Nb3 Re1 Rhf1 h1R Rf7 Rhh5 Rg7 Qd4 Rf4 Rg1 Qc2 Rb1 Be2 Qd1 Ra8 Qg1 b8Q Rb2 Raf1 a1R Ra5 Rbb1 Qb7 Ra8 Qdc8 Ra2 Qd1 Rd2 Qa7+ Rd4 Nc5 Ba2 Nb3 Rbe5 Ba6 Rb5 Qc1+ Ke2 Rf8 Rb4 R1f4 Ra4 Qb6 Rd4 Kb7 c5 Kc7 Rb4 Qa7 Rc4 Qd2#
4RQK1/2rqQrn1/2k1NP2/rrN1RN2/b6P/1PpB2N1/1R3n2/1N1nB3 b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 b5 cxd5 b4 Bd3 b3 axb3 Qd6 Bf1 Qd8 g4 h5 gxh5 a5 Qf3 e6 Be2 a4 Bf1 a3 Qe2 a2 Qd1 Ba3 bxa3 Qf6 Qg4 Qh4 Qd1 Qd8 Ke2 Kd7 Kd3 g5 Kd4 c5+ Ke5 c4 f4 c3 h4 g4 d4 g3 h6 g2 h7 Bb7 a4 Nf6 a5 Na6 d6 Rg8 h8N Nh7 f6 Qb6 f7 Qc5+ d5 Rg5+ f5 Rh5 f8Q Qa7 Rh2 Rd8 Qe2 Ng5 Kf6 e5 Kg7 e4 f6 e3 Ng6 Rh8 Ne7 Rb8 Bd2 Ne4 Nf5 Rh7+ Kg8 Nf2 Be1 Nc7 a6 Qd4 a7 Rf7 a8N Ne8 Nc7 Bc6 Ne6 Nd1 Nc5+ Kc8 d7+ Kc7 d8R Ng7 Bf2 Ba4 d6+ Kc6 d7 Rb5 Re8 Qd2 Qe1 Qd6 Ne2 g1R Neg3 e2 Bg2+ Qd5 Be4 Rg2 Bd3 Qd4 Qf1 e1N Qe2 Qd6 Qee7 Qd4 Be2 Nd3 Be1 N3f2 Bd3 Qd5 Nh1 Rg4 Nhg3 Rc4 d8N+ Kb6 Nh5 Qd7 Nde6 Kc6 Nhg3 Ra5 Nd2 Rb5 Rc1 a1R Nb1 Ra5 Rc2 Rb4 Re2 Rbb5 Re5 Ra2 Rg2 Rd2 Bc2 Rd5 Rh2 Ra7 Bd3 Rc7 Rg2 Ra5 Nce4 Rdb5 N4c5 Nh1 Rge2 Nhf2 Rb2
Q2K3b/Rr2B3/3NrQ2/1n1qq1B1/k2p1RB1/PN2P1n1/3P1B1B/2r2R1r b - - 0 1 legal: proof: f4 a5 c4 b5 cxb5 a4 Kf2 a3 bxa3 Na6 Ke1 Nb8 g4 h5 gxh5 e5 fxe5 Bb7 Qb3 Bd5 Qd1 Bb3 axb3 Ra4 Bg2 Ra6 Bf1 Ra8 Kf2 c5 Kg3 f5 Kf4 d5 h4 Kd7 b4 g6 e3 c4 b6 Kc6 e6 Kb5 Ke5 g5 h6 f4 b7 g4 e7 g3 Ke6 f3 e8Q+ Nc6 b8B f2 h7 g2 h5 Nf6 h6 Ng8 Qf3 Ra7 Bb2 Qa5 Qf6 Rf7 Nc3+ Ka6 b5+ Kb6 Nge2 g1R Bh2 Ra7 Qa8 Be7 Bh3 f1Q Nd4 Qg2 Bg4 Ra6 Kd7 Qb4 Ne4 Ka5 b6 c3 b7 c2 b8B c1R Nb3+ Ka4 Bbg3 Rgd1 Nd6 Qb8 Bf2 Bf8 Rf1 Nd4 Na5 Ne7 Bc3 Qe4 Bb4 Nef5 Bc5 Qb7+ Kd8 Ng3 Rb1 Qc6 Rb7 Nb5 Ra7 d4 Bb4 Rg8 h8R Qcd5 h7 Rg7 Rg8 Qf4 h8B Rb7 Bc5 Bh6 Rf8 Qfe5 Bg7 Bg5 Bh6 Bh4 Bf4 Bg5 Bb4 Bh6 Bg5 Bg7 Qe7 Bh8 Rf4 Qb3 Qf6 Qa2 Ne4 Re6 Be7 Qad5+ Nd6 Rcc7 Bf8 Rh7 Be7 Rc1 Bhg1 Rh1 Bh2 Qde4 Qh6 Q5d5 Qf6 Qee5 Nb3+
1Rnk2R1/3R1PKQ/8/1b2NRbP/3p2b1/nr1RNBQr/2P2r1b/B3N3 b - - 0 1 illegal: No possible last move
NBn1N3/1r1p2Nk/P1P1Q1nb/1nQ1P3/6b1/7R/rrNQR3/rN3K1B b - - 0 1 legal: proof: d4 a5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 a4 gxf5 a3 bxa3 g4 a4 Ra7 a5 Qg5 hxg5 Ra8 c4 Kf7 a4 Kg7 e4 h5 e6 b5 a6 b4 f6+ Kg6 e7 h4 e8N b3 f7 h3 a5 b2 a7 h2 a6 g3 c6 g2 c7 Rh5 c5 Nf6 Nf3 g1N Bg2 Nc6 Ra2 Ng8 Qd2 Ne2 Nd4 Ne5 Kf1 Nc3 Nc2 Rb8 a8N Bb7 c8Q Bh6 Bf3 Kh7 f8N+ Kh8 g6 Ne7 Ne6 Nb5 g7+ Kh7 Qc7 N5g6 Qca5 Bd5 c6 Rb7 Qab4 Rh4 Qc5 Nc8 e5 Ra4 Be4 Be3 Bg2 Bf3 g8Q+ Kh6 N6g7 Bg4 Qe6 Kh7 Qdb4 Bg5 Be3 Bh6 Qd2 Ra3 Rg1 Ra4 Bh1 Ra5 Rg3 Ra4 Be4 h1R+ Bg1 Rh2 Rh3 Re2 Bh1 Ra5 Raa3 Rg2 Rae3 Ra1 Re2 Rh2 Qa3 Rg2 Ba7 Ra2 Nc3 b1R+ Qac1 Rba1 Nb1 Rg3 Qa3 Rb3 Qc5 Rbb2 Bb8
4BK2/2r1nN2/RR2qPPn/1p3NPr/nQ3qR1/BQR5/R6k/n3nB2 b - - 0 1 legal: proof: e4 a5 c4 f5 h4 g5 hxg5 d5 cxd5 a4 e5 a3 bxa3 Kf7 a4 Ke8 a5 Qd6 Ba3 Qd7 Bc1 Qd8 f3 Bd7 Qc2 Ba4 Qc3 Bg7 Nh3 Bf6 exf6 e5 Qc2 e4 Ng1 e3 Qd1 Bb5 Qb3 Bd3 Qd1 Be4 fxe4 Kf7 Qh5+ Kf8 Qd1 Ke8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 Kc5 Kf4 g4 Kg3 a4 h5 d4 b5 a6 h4 d6 f4 d5 e2 d7 e1Q g6 c6 Kd6 c5 g5 h3 a5 f3 a7 c4 e5 c3 a6 f2 e6 h2 e7 c2 e8B Rh6 Ra3+ Qe3 Ne2+ Kf3 Rc3 Qa5 d8R Ne7 Rg1 h1N Na3 Qa4 Rg4 Rh2 Nc4 Ng3 Ba3 c1N Qb3 Nd7 Rb8 Nc5 Rb6 Rc8 a8R N1d3 a7 Rc7 Qb4 Qa6 Qb3 Qf4+ Ne5+ Ke4 Nd4 Rh5 Nf5 Na4 Ke6 Ne1 Kf7 Qc8 Kf8 Qe6 Be2 f1N d6 Ne3 d7 N3c2 d8Q Na1 Nf7 Nd3 Bf1 Kf3 Qc8 Kf2 Qd8 Kg1 Qd6 Ne1 Qdb4 Kh1 Rab8 Kh2 a8R Rh3 Raa6 Rh5 N5h6 Ngf5 Rba8 Ng8 R8a7 Nfe7 Nf5 Nh6 Ra8 Nec2 Rd8 Ne1 Rd2+ Qf2 Ra2 Qd2 Bg2 Qf4 Bf1+
3r1BN1/P1R5/N1r3r1/Q4q1Q/PqB3n1/1Rnr4/1KB2pBP/4knBQ b - - 0 1 legal: proof: d4 d5 g4 e5 b4 a5 bxa5 h5 gxh5 c5 e3 e4 f3 Bf5 Be2 Be7 Bd3 Bf6 dxc5 d4 Be2 d3 Bf1 Bd4 exd4 e3 Bg2 Nd7 Bf1 Be4 fxe4 Nb8 a4 Kd7 c4 Kc6 h6 f5 e5 b5 h7 g5 d5+ Kc7 a6 e2 Kd2 e1N Kc3 g4 e6 b4+ Kb2 b3 a7 f4 d6+ Kc6 e7 g3 e8Q+ Qd7 Qeh5 g2 Nd2 f3 Nh3 g1Q Ne4 d2 Nf4 Qc7 d7 Qg6 d8Q Ng2 Nd5 Nh6 Ra3 Qcg3 Nef6 Qd6 Qa5 Ne3 Ng8 Nhg4 Nc7 Nd7 Bg2 Ndf6 Na6 Nf1 Qe1 d1R Be3 Qe4 Bg1 Rd3 Qc1 Nd5 Qd1 Kd7 c6+ Ke6 c5 Nc3 c7 Qf5 c8B+ Ke5 c6+ Kf4 c7 Qb4 Be6 Rad8 c8B R8d6 Bb7 Rc6 Bc4 Rg6 Be4 Rc6 Ne7 Rhd8 h8B Rg6 Bg7 Rc6 Kc1 b2+ Kc2 b1R Rb3 Rg6 Ng8 Rc1+ Kb2 Nh6 Bc5 Ng4 Bcf8 Ke3 Be5 R3d4 Bc2 Kf2 Bc7 Rd3 Bb6+ Re3 Qdd5 Ke1 Qc6 Red3 Bg1 R8d6 Qa8 Rd8 Bf7 Rh6 Bb6 Nd5 Bd1 Kd2 Bh3 Ng3 Re1 Rcc3 Re7 Nf1 Bg1 f2 Bc2 Rg6 Rc7 Ke1 Be6 Rc5 Qc6 Nc3 Qh1 Rc4 Bg2 Rc6 Bc4
6bn/BQ2P1nR/PBR2pBp/1PN3Q1/k3K3/2R3rr/b1Rq3N/R4b2 b - - 0 1 illegal: No proof kernel
NK3n2/1B1NPk1N/2Rp1b1b/1QP2P2/1r3B1N/1r4n1/2p1RQ1B/2q1N1q1 b - - 0 1 illegal: No proof kernel
3Bn1K1/2PQ1rR1/2QP1q1r/1q1BPBNB/B7/p2kp1b1/1R4b1/3N1Rn1 b - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 d5 a4 e5 axb5 g5 e4 g4 exd5 g3 hxg3 e4 g4 Qc7 g5 Qe5 fxe5 Bb7 Qf3 Ba6 Qd1 Bc8 Ke2 Ke7 Ke3 a5 Kd4 h5 c4 f5 g4 a4 g6 a3 b6 f4 c6 h4 b7 f3 g7 h3 c7 h2 g5 f2 g6 Rh3 c5 Rh6 d6+ Ke6 d7 Kf5 Kd5 Na6 b8R Rh3 d8Q Nh6 g8B Rb3 d4 Be7 c6 Bc5 g7 Bd6 Be2 f1Q Qe8 Ng4 Nh3 Be7 Rg1 h1Q Ng5 Rb6 Nc3 Rb1 Rb2 Nf2 Bh5 Bd7 c8B Nh3 Qd3 Qf4 Nd1 Ra7 Bgf7 Qf1 g8B Qhf3 Bd2 Bf6 Ba5 Nc7+ Kd6 Kf4 Bb3 e3 d5 Q3f2 Qc2 Qb5 Ba4 Bg4 Qe6 Bf3 Qd7 Ne8+ Ke6 Bg2 Kf7 Rb7 Rf1 Ng1 Bd8 Rb6 c7 Re6 Nh7 Bh4 d6 Bg3 Qcc6 Rh6 Ng5 Rc1 Kf8 Rc2 Rc1 Qf3 Bd5 Rf2 Ne6+ Kf5 Kg8 Qf4 Rc4 Qh4 Rg4 Qf6 Rg7 Rf3 Ba2 Rf2 Qa6 Ke4 Ng5+ Kd3 Qac6 Qg6 Bd5 Rf7 Qe7 Qf6 Bh3 Bh4 Qed7 Bg3 Bf5+
4k1B1/1n2B1b1/BRbr2r1/1q1b1Pp1/Q1BP4/1PN1KB2/qN1p1R2/2N4Q b - - 0 1 legal: proof: d4 c5 dxc5 g5 h4 b5 a4 d5 axb5 f5 g4 d4 gxf5 d3 e3 Qd6 h5 Qg6 hxg6 Nc6 Qh5 Ba6 Qd1 Nd4 exd4 Bc8 Kd2 h5 c4 e5 f4 a5 f6 a4 f7+ Kd8 c6 a3 g7 a2 b3 h4 b6 e4 c5 h3 b7 h2 b8Q Nf6 g8B Ra6 c7+ Kd7 c6+ Ke7 f5 Nd5 Qa7 Rh6 Nc3 Rh8 Ba3+ Nb4 Nge2 Bb7 c8B Rh6 c7 Rab6 Qa4 Rhg6 Ke3 d2 Nc1 Bd5 Bb7 Bg7 f8N Rbd6 c8B Na6 Bc4 Nc5 Rf1 h1B Nd7 Ke8 Ne5+ Bc6 Bba6 Nb7 Ned3 Bg2 Nb2 Bf3 Rb1 a1Q Rf2 Qa2 Ra1 Bg2 Bc8e6 Bf3 Qh1 Bg2 Ke2 e3 Bed5 Bf3+ Kd3 e2 Ke3 Bg2 Bf3 e1Q+ N1e2 Qf1 Nc1 Rd5 Be7 Rd8 Bcd5 Qb5 Bc4 Rdd6 Qa5 Qb1 Ra4 Bd5 Rb4 Qa2 Qa4 Bc6 Bh5 Bgd5 Bf3 Qa5 Rb6 Qc5 Be4 Qb5 Bf3
N2B4/1n1BKN1q/5BRP/5B2/1pnb2p1/Qr1N2P1/qB1P1Q2/1r2Rr1k b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 h5 bxa5 b5 a4 f5 e4 b4 exf5 Be6 Qxh5+ Bf7 Qh7 Bh5 Qh6 Be2 Qh7 Bb5 axb5 Qc8 Bd3 Qd7 Bf1 Qd8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 Kg4 Ke6 g5 h4 c5 f4 Kg3 d6 c4 d7 g4 f6 c3 h5 c2 h6 Nc6 f5 Rc8 a6 Qc7 d8N Kf2 f7 Qf4 b6 Ne5 f6 Qh2 g3 Nd3 b7 Ne5 b8B Nd3 a7 Ne1 a8B Ng2 Bc7 Ne3 Ne2 Nc4 Qd3 Qg1 Nf4 Bg7 Bb2 c1Q f8Q Qc2 f7 Bd4 Na3 Nf6 Nb5 Ne8 Ra6 Ned6 Be4 Nb7 Qa3 Qa4 Be2 Qb1 Re1 Rg8 Bc6 Qh7 Bd3 Qa5 Kd7 e5 Ke7 e4 Bd7 e3 B3f5 e2 Nd3+ Kg2 Rg6 Qa4 Ba5 Qb3 Nc7 Qa2 Na8 Rc6 Qg7 Rf8 Qf6 Rd6 Nc6 Rd5 Nce5 Rc5 Bd8 Rc7 Rd1 e1R Qb6 Rf1 Re1 Kh1 Qba7 Bc3 Qf2 Bd4 Kf6 Re8 f8B Rc5 Bfe7 Ra5 Qb3 Ra3 Ke6 Rf8 Bf6 Rg1 Qc3 Rb3 Nf7 Rf1 Ba5 Rc8 Ke7 Rc6 Bd8 Ra6 Ba3 Rb1 Bc1 Ra3 Qb2 Rc3 Qa3 Rcb3 Bb2
1NB1brk1/4P3/qBb5/BQNRP3/B3p2n/pRqb2P1/1Q1R1r1B/3K4 b - - 0 1 illegal: No proof kernel
nQ2N2b/P2p1k2/p1rBQ3/1r1b1Nq1/qBR2P2/3BKB2/2P1BRr1/6Q1 b - - 0 1 legal: proof: b4 b5 a4 f5 axb5 g5 e4 c5 exf5 g4 d4 a6 dxc5 g3 b6 Nh6 b7 Qb6 b5 Qd8 b6 Ng8 hxg3 Bg7 g4 Nc6 g5 Na7 bxa7 Bf8 Ke2 h5 b8Q e5 g4 e4 f4 e3 c6 h4 f6 h3 c7 h2 f7+ Ke7 g6 Rh5 g5 Rh3 g7 Nh6 g8Q Ke6 g6 Ke7 g7 Rg3 Nc3 Ng4 Ba3+ Kf6 Bb4 Rh3 Ra4 Rh5 Nb5 Ne5 Nf3 Nc4 Nd6 Rb5 Nh4 Bb7 c8B Nb6 Nhf5 Bd5 Ne8+ Kg6 Kd3 e2 Bb7 e1R Be2 Qg5 Rf1 h1Q Rf2 Rg1 Ke3 Rg2 Qg1 Bd6 f8B Be5 Qe6+ Bf6 Qd8 Rc8 g8B Na8 Bfd6 Rc6 Qb8 Qhh5 Bd3 Qd1 Be2 Qa1 Bf7+ Kh7 Bd3 Bh8 Bh5 Qa3 Be2 Qa2 Bc3 Qa3 Rc4 Qa4 Qe7+ Kg6 Bcb4 Rcc5 Qe4 Kf7 Qe5 Be6 Bbe4 Rc6 B4f3 Bd5 Qe6+
4NnB1/kPR5/3n1PN1/1p5B/1B2QNrR/1K1pPb2/N4Q2/1nr1bbN1 b - - 0 1 legal: proof: b4 g5 h4 f5 hxg5 f4 c3 f3 exf3 a5 bxa5 b5 c4 e5 c5 e4 Rh4 e3 dxe3 Qf6 Rh1 Qb6 cxb6 Ba3 Bd2 Bd6 Bc1 Bf8 Kd2 Kd8 Kc2 c5 a4 d5 g4 h5 a6 c4 a7 c3 f4 d4 a5 h4 a6 h3 f5 d3+ Kb3 c2 f4 h2 g6 Bc5 f6 Bb7 f5 Kc8 g5 Be7 g7 Bd6 f7 Bb4 f8N Bd6 g6 Rh6 f6 Bg2 Bd2 Bg3 Qf3 Bd6 Qf2 Bb7 Bb4 Nd7 Nc3 Ne7 g8B Bg3 g7 Bf3 Ng6 Nf8 Rc1 Nf5 Nf4 Rg6 Be2 Rg4 Na2 Nd6 Bd1 Rb8 a8N Bh4 a7 Kb7 Nc7 Rc8 Be2 Bg2 Ne8 Bf1 Bf3+ Ka6 b7 Kb6 a8Q Rc6 Qd2 Be1 Qf2 Rc5 Qc8 Ka7 Qf5 Rc4 Bgd5 Rc6 g8N Rc7 Ne7 Rc4 Ra1 Rc5 Bg8 c1N+ Ka3 Rc8 Neg6 Ne2 Kb3 Nc3 Rc1 Nb1 Qe4 Rc6 Rc5 Rc8 Rh5 Rc1 Rh4 Rg2 Bh5 Rg5 Ngh3 Rg4 Rg1 h1B Rg3 Bc3 Ng1 Bf3 Rgh3 Rg2 Rg3 Be1 Rg5 Rg3 Rc5 Rg4 Rc7
1b3q2/1N4R1/Qq1P3B/3k1r2/B1n2Ppq/1RNp1P1B/Q2B4/2nBnQ1K b - - 0 1 legal: proof: h4 a5 a4 f5 d4 d5 g3 g5 h5 b5 axb5 f4 gxf4 c5 dxc5 d4 e3 Bb7 e4 Bd5 exd5 Ra6 Kd2 Rc6 Ke1 Rg6 hxg6 Qb6 Qf3 Qd6 Qd1 Qd8 c4 Kd7 b4 h5 f3 e5 Kf2 g4 Kg2 h4 g7 d3 b6 e4 b5 a4 b7 e3 b6 e2 c6+ Kd6 c5+ Ke7 c7 e1Q c8Q a3 c6 Kd6 c7 a2 Nh3 Qe5 Bd2 Qde8 Ng5 Qf5 Ne6 Qh7 Nd8 Qa4 Nc3 Qg6 Rb1 a1N Rb3 Na6 b8B Ne7 g8B Nf5 b7 Qa3 Kh2 Qe6 Bh3 Ne3 Qf1 Rh5 Ba7 Bg7 b8Q Be5 Qa8 Nac2 Bd4 Nc5 Kg1 Qb4 Qa2 Rf5 Qca6+ Qb6 c8B Qe8 Bd7 Nc4 Bc6 Qf8 Ba4 Ne1 Rh2 Nd7 Kh1 Nc5 Ra3 Nb3 Nb7+ Ke7 Be6 Nc1 Rb3 Bb8 Bed7 Kf7 Bg7 Ke7 d6+ Kf7 Bdb5 Ke6 Nb1 Kd5 Bh6 Qc5 Re2 Qa7 Re7 Qb6 Bg2 h3 Rg7 h2 Bh3 Rf6 Rc3 Rf5 Bd1 Nb3 Ba4 Nc1 Rb3 Nc2 Kg2 h1Q+ Kg3 Ne1 Nc3+ Kd4 Bg2 Qh5 Bh3 Qg5 Kh2 Qh4 Nd8 Kc5 Kg1 Kd4 Kh1 Kc5 Nb7+ Kd4 Nb1 Kd5 Nc3+
1q1qn3/1R2r1PR/K2R4/1Q3P1p/N2R2p1/Q3P1B1/nNBnN3/3bq1Rk b - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 g3 Bh6 fxe5 f4 g4 Ra6 Ra3 Rf6 Ra1 Rf5 gxf5 g4 Nf3 Ba6 Ng1 Bg5 hxg5 Bc8 b4 Kd7 d4 c5 Kd2 h6 Kc3 a4 Kc4 a3 e6+ Kd6 e7 f3 e8N+ Kd7 d6 a2 g6 f2 b6 Kc6 d7 Na6 b5+ Kb7 d5 Qe7 d8R Qe3 d6 Qh3 g7 Qg3 d7 Qf3 Qd3 Qg3 Bf4 Nf6 e3 Nb4 Nc3 Rf8 Rd1 a1Q Rd2 Qe1 Nge2 Na2 Na4 Rf7 Qa3 Re7 Rc2 Qh4 Bg3 Qg5 Rd2 Qf4+ Rd4 Qb8 Rh2 h5 Rg2 Ka8 Rd6 Ba6 b7+ Ka7 Rd4 Qa5 Nd6 Ne8 Rc8 Qb6 d8R Qa5 Nb2 Kb6 Ne4 Qe1 N4c3 Qd2 Kb3 c4+ Ka4 Qd3 R8d7 Qd2 Rcd8 Qd3 R7d6+ Kc7 Ncd1 c3 Ka5 c2 Ndc3 c1Q Nca4 Qcd1 Nf4 Q3b1 Bd3 f1N Bc2 Nd2 Rh6 Qe1 Rh7 Qbd1 b6+ Kc6 Ne2 Bc4 R8d7 Bb3 Ka6 Qd8 b8R Qb1 Bd3 Bc2 Rbb7 Bd1 Nc4 Qb4 Ncb2 Qd6 Bc2 Q8b8 Rb4 Kd5 Rf4 Ke5 Rd8 Qdc7 Rd7 Qcd8 Rfd4+ Kf6 R7d6+ Kg5 Bf4+ Kh4 Bg3+ Kh3 Rbd7 Qbc8+ b7 Qcc7 b8Q Qcc8+ Qb7 Qcc7 Qb5 Qcb8 Rb7 Qbc7 Bf4 Qcb8 Rg3+ Kh2 Rg2+ Kh1 Bh2 Nf3 Bg3 Nd2 Rg1+
5brq/2NR1kNP/1P1Qr2B/1Q1Q2b1/5p1r/3b1QQp/1K1R3P/r2B2R1 b - - 0 1 legal: proof: b4 a5 g4 h5 f4 e5 fxe5 b5 c4 d5 cxd5 h4 a4 Nf6 axb5 Nh5 gxh5 a4 Ba3 Nc6 Bc1 Na5 bxa5 Ke7 Qc2 Kd7 Qd1 Ke8 d4 c5 Kd2 f5 Kc3 g5 e4 c4 e6 g4 h6 g3 e7 g2 a6 a3 a7 a2 h7 h3 e5 Be6 b6 Qd7 d6 Qb7 d7+ Kf7 d8Q Qb8 e8Q+ Kg7 d5 Bd6 Ne2 g1R Qb5 Rg5 Ng3 Bd7 e6 Rf8 e7 Rh8 e8Q Be6 Qg8+ Kh6 Qf3 Bc8 Na3 Qc7 Kb2 Bf8 d6 Ba6 d7 Qc8 Be2 Qb8 Rb1 a1R Rg1 Qc8 Qgd5 Kg7 Bd1 Rg4 Nh5+ Kg6 Ng7 Rg8 Qd6+ Kf7 Q8c7 Rh4 Bh6 Rb8 a8Q c3+ Kc2 Qd8 Rb2 Qc8 Kb3 c2 Qcc3 c1B d8R Rb7 Rd2 Re7 Qad5+ Re6 Qce5 Qb8 Qeg3 Qa8 Rb2 Bg5 Rd2 f4 Kb2 Qc8 Qbd7+ Kg6 Nb5 Qa8 Nc7 Bd3 Qa4 Kf7 Qab5 Qa4 Nf5 Qd4+ Kb3 Qh8 Ng7 Bf1 Kb2 Bd3 Rd7+
K2B4/Bp2R1pP/3QPnnQ/4n1B1/1Q2B2q/Pb2bn2/Bk6/bN3NR1 b - - 0 1 illegal: No proof kernel
3n2n1/1k1KnPQq/Brr2P2/B6R/3QP1p1/2R2pN1/3BnR2/NBB1q3 b - - 0 1 illegal: No proof kernel
1r2bK2/1p3B1b/B1NRp3/6B1/P4Pq1/2RPnk2/BNp3Nn/Q1QB3n b - - 0 1 illegal: No possible last move
r1N5/p1P1NNQ1/6BN/4qn2/3RRP2/p2PBnrN/K1p3k1/1nRb2Q1 b - - 0 1 illegal: Other
qB1r4/3Q2K1/3BpnP1/p1P5/bNkNbBQ1/R2P4/1q1p1BBR/1Q1r4 b - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 c5 gxf5 g4 d4 Bh6 dxc5 Bg5 hxg5 Kf8 Qd3 Kf7 Qd1 Ke8 c6 Kf7 Kd2 d5 Ke3 a5 Kf4 h5 Ke5 d4 c4 h4 f4 h3 b4 d3 b6 g3 b7 h2 g6+ Kg7 b5 g2 b6 Rh7 c7 Qe8 f6+ Kf8 f7 Rh4 f5 Qa4 Na3 Qb4 Nf3 g1Q Nc2 Rh6 Ra3 Qg5 Bg2 Bd7 c8Q+ Be8 Bf4 Na6 b8Q Qd2 b7 Nc5 Qa7 Rh8 Nb4 Qb2+ Nd4 d2 Qb1 Nd3+ Ke6 Kg7 c5 Ba4 f6+ Kh6 f8B+ Kh5 Kf7 Qd5+ Kg7 Qe4 f7 Nf6 Qe6 Rd8 b8B Qa8 Qc6 Kg4 Qad7+ e6 Bf8d6 Bd1 Nb3 Kf5 Qf3 Rh4 Be3+ Rf4 Qg3 Rf1 Bdf4 Bc2 f8B Rd1 Nc1 Ba4 Nb3 Qc6 Bf2 Qa8 Bf1 Ke4 Nd4 Rc8 Bf8d6 Rd8 Rg1 h1B Qg4 Bg2 Rh1 Bf3 Rh2 Bh1 Na2 Kd5 Nb4+ Kc4 Bh3 Bd5 Bg2 Be4 exd3+
6bk/K2PQrQ1/p4Nq1/PBNp2B1/br1qb3/Bp1B4/R2RB2P/6R1 b - - 0 1 illegal: Other
BB3rN1/q1qB1P2/Np1kq3/2R1p2K/3Q1B2/3PR1BQ/1P3R1p/r2n2r1 b - - 0 1 legal: proof: e4 d5 c4 f5 cxd5 b6 exf5 Ba6 a4 Nd7 a5 Bc8 a6 Nh6 g3 Bb7 axb7 Ng8 f6 Nb8 f4 g5 g4 Nc6 h3 Nd4 h4 Nf5 gxf5 g4 Nf3 Bh6 Ng1 Bg5 hxg5 Qd6 Bb5+ Qd7 Bf1 Qd8 Ke2 Kd7 b8B c5 d6 a5 f7 h5 f8Q e5 f6 h4 f7 g3 Kf3 h3 Kg4 h2 g6 a4 f5 g2 f6 c4 g7 c3 Nf3 g1Q+ Bg2 c2 Na3 Nh6+ Kh5 Qc8 g8B Qe8 Nh4 Qf1 Nf5 Qe1 Nb5 a3 Ne7 a2 Nc7 Qd8 Na6 Ng4+ Qh6 Ne3 f8R Qf2 Re1 Nf1 Re3 Ra7 Ba8 Qg2 d3 Nd2 Qg1 Qb7 Bc4 Rg8 Bb5+ Qc6 f7 Rh8 Ng8 Qc7 Rc8 Nb1 Bd2 Nc3 Rf1 c1R Rf2 a1Q Qh7 Ke6 d7 Rb1 d8B Kd6 Bh4 Nd1 Bg3 Qd7 Bc1 Qe6 Bd7 Qaa2 Ne7 Rf8 Ng8 Qad5 Qf5 Qb7 Qh3 Ra1 Re1 Rb1 Bcf4 Rc1 Re3 Rb1 Nb4 Raa1 Na6 Rc1 Qgg2 Qa7 Qe4 Rcb1 Qd4+ Qd5 Rd2 Nf2 Bf5 Rg1 Qa4 Nd1 Bd7 Qe6 Rf2 Qb7 Ba7 Qcb8 Rc5 Q8c7 Bb8 Qa7 Qd4+
7B/1P5p/4Ppp1/1b1BQ1k1/1qNnr1p1/2NR1PQ1/B4BKR/BRr3b1 b - - 0 1 illegal: Other
Q1Q5/B1P1k3/RPQ1Nn2/5B1B/1p2nppK/B3q3/pq1P4/N2R1rrB b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 h3 a5 Ba3 gxh3 Kf8 h4 Ke8 h5 Bf8 b3 c5 Qc2 c4 Qg6 c3 Qd3 Bc5 Qc2 Bb6 Qd1 Bf5 Nf3 Bd3 Ng1 Bc4 bxc4 Be3 Bg2 b5 Bf1 Bb6 axb6 Qc7 Nf3 Qd6 Ng1 Qd8 Kf2 g5 Kg3 a5 h4 f5 e4 b4 h6 g4 c5 c2 h5 a4 d6 a3 h7 Kd7 c6+ Ke6 d7 Ke7 h6 f4+ Kh4 Qc7 d8Q+ Ke6 Qc8+ Kf7 e6+ Kf6 e7 Ra4 e8B Qe5 Nh3 Qb5 e5+ Ke7 e6 Nf6 Bg2 Qd5 Qf3 Nfd7 Ng5 Kd6 e7 Qe5 Bg6 Nc5 e8B Ra5 Bf5 Ne4 Bh5 Qf6 Rd1 Nc3 Bh1 Rf8 h8Q Qd4 h7 Ne4 Ne6 Nd7 Qg8 Qc5 h8B Qe3 Be5+ Ke7 Bb8 Ndf6 c7 Re8 Ba7 Rc5 Bb2 c1Q Qg6 Rh8 Qgg8 Qcc3 Qa8 Qe5 Qgc8 Rc1 Qg2 Nf2 Qgc6 N2e4 Nc3 Rh6 Nb5 Q5c3 Nbd4 Qb3 Rg1 Rf1 Nc2 Rh8 Rd1 a2 Na1 Qbc3 Ba3 Qb2 Rg3 Rd8 Bfg6 Rd3 Bf5 Rc3 Rf3 Rc1 Rh3 Qc5 Rd3 Qe3 Rd5 Rb1 Ra5 Re1 Ra6 Rg1 Re1 Rd1 Re2 Rdf1 Re1 Rg3 Rb1 Rgg1 Rd1
BK6/QP2QB1q/6pQ/1nP1pbBp/pbB1R1k1/4P1N1/2N1qBq1/7R b - - 0 1 legal: proof: d4 a5 a4 c5 dxc5 e5 f4 b5 axb5 Ra6 f5 Re6 fxe6 Qe7 Bf4 Qf6 Bc1 Qd8 g4 f5 Ra4 f4 Ra3 Bd6 Ra1 Bf8 Nd2 Bd6 Ndf3 Nf6 Kd2 Rf8 Ke1 Ng8 Nd2 Rf5 Nb1 Bf8 gxf5 Qb6 Kf2 Qc7 Ke1 Qd8 h3 Nc6 h4 Nce7 h5 Nd5 Kf2 g6 h6 Ndf6 Ke1 Nh5 Nd2 Ng7 hxg7 h6 Nb1 h5 Kd2 Ke7 Kc3 Kf6 Kc4 Kg5 Kd5 d6 Kc6 d5 b4 a4 c4 d4 f6 d3 f7 d2 e7 f3 e8Q f2 b6 Qe7 b5 Be6 b7 Nf6 b8B Bc8 g8B Bh6 f8Q Bg7 b6 Kf4 Ba7 Ba6 Bf7 Nh7 Na3 Qf6+ Kc7 Bb7 c6 Kg5 Nc2 Qf3 Qee7+ Nf6 Kb8 Ba6 c7 Qc6 c8B Qg2 Bb7 Qd5 Ba8 Bc8 b7 Kg4 Qe1 d1Q Bf4 Qg2 Qa5 Qd7 Re1 Ne4 Bb6 Qf3 Qa7 Qg2 Bc5 Bf6 Qh6 Nc3 Bce3 Bh4 c5 Bg3 Rd1 Bh4 Rd4 Nb5 Re4 Bg5 Bd2 Bh4 e3 Bg3 B1c4 f1Q Bb4 Be1 Ne2 Bd2 Ng3 Qfe2 Ba5 Bb4 Bd8 Qd4 Ba5 Bf5 Bd8 Qd7 Ba5 Ba3 Be1 Bb4 Bf2 Qe8+ Qd8 Qg8 Qdf8 Qg7 Qe7 Qh7 Bg5+
1Q1n1n1B/1N3P1B/N4n1P/p2pk2p/2NNn2K/2R3p1/r4QRP/3r2NR b - - 0 1 legal: proof: e4 c5 g4 b5 d4 h5 dxc5 b4 g5 b3 axb3 Nf6 b4 Qb6 b5 Qd6 Qf3 Ng8 Qd1 Qh6 gxh6 Bb7 Ne2 Ba6 Ng1 Bc8 Bd2 f5 Bc1 Bb7 e5 Be4 f3 e6 Qd2 Be7 Qd3 Bf6 exf6 e5 Qd2 Bb7 Qd5 e4 Qd6 e3 Qd1 Be4 fxe4 Kf8 Qg4 Kf7 Qd1 Ke8 c4 Kf7 b4 Ke6 e5 g5 b6 d5 f7 a5 b7 f4 b5 e2 Kf2 e1N c6 f3 Kg3 g4 b6 f2 c5 Ra7 c7 Nd7 c8N Rh7 b8N Ra6 b7 Rh8 c6 Nc5 c7 Nf3 Qe2 Rc6 Bb2 Rd6 Na6 Rb6 b8Q Nh4 Na3 Rh7 Nc2 Rg7 Nd4+ Kd7 Nd6 Nb7 c8R Nf6 Ra2 Nd8 Rc3 Ng6 Nb7 Nf8 Kh4 g3 Ba1 Rb2 e6+ Ke7 Bg2 f1N Be4 Nd2 Bh7 Nde4 Qf2 Rd2 Rb2 Rd1 Re2 Rg5 Bb2 Rf5 Ba1 Ng8 Bb2 Kf6 e7 Nd6 Rec2 Ke5 e8N Rf6 Rd2 Re6 Ba1 Re7 Bb2 Rc7 Ba1 Ne4 Ned6 Rc8 Qf1 Ngf6 Rg2 Rc4 Qf2 Ra4 Rc7 Ne8 Nc2+ Ke6 Bh8 Ra2 Rc3 N8f6 Nd4+ Ke5 Nc4#
2rnb1RQ/2Q4n/K3R3/3Pr3/N4NQq/Pk1Pb2B/qqB1bB2/2QQ3r b - - 0 1 illegal: No possible last move, all moves rejected
nr5N/2RNBNkb/1Q2PbB1/1q2R1r1/Q3r2P/Q2n4/4qP2/Kn2Qb1Q b - - 0 1 illegal: No proof kernel
KN4R1/4r1bQ/3PP1P1/3NBnNB/nQ3Q2/qr2qQ2/2bR1nk1/2b1Q2q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 d4 h5 g4 h4 b4 a4 e6+ Kd6 b6 c4 g6 c3 b5 f6 e7 a3 e8Q a2 g5 c2 g7 h3 b7 h2 g6 Bd7 b6 Qc7 Nc3 Ra6 Bb2 c1N Nf3 Ne7 g8Q Rh3 Qh7 Qc5 Ng5 Qa3 e3 Rf3 Be2 Nf5 Rb1 Rh3 Bh5 a1B Qf3 Bg7 Rd1 h1Q Rd2 Ra7 Qf7 Na6 b8N Bc6 b7 Nd3 Rbd1 Ba4 Qe8 Kc7 d6+ Kb6 Kd5 Bc2 e4 Nf2 d7 Nc5 e5 Na4 e6 Qe1 Qf8 Qe3 Qb4+ Kc7 Nb5+ Kb6 Bc3 Bb2 Rh1 Bc1 Bb2 Nd6 Nc3+ Kc7 Rf1 f5 Rh1 f4 Rf1 Kd8 Kc6 Ke7 d5 Kf6 d8Q+ Ke5 Qf8 Nf5 d6 Qe4+ Nd5+ Qd4 Qg4 Rb3 Qd1 f3 Qe1+ Ne4 Rh1 f2 Qc3 f1Q Qf3 Bf6 Rh4 Qh1 Qfh6 Bg7 Rf4 Ne3 Rf8 Nf2 Rg8 Qg1 Na6 Qh1 b8Q Re7 Qb4 Qc3+ Kb5 Qd4 Nb8 Qc3 Ka6 Qd4 Nc3 Qe4 Ba1 Nf5 Bb2 Qe3 Ba1 Re8 Kb7 Re7+ Ka8 Nd4 Qfb7 Kf4 Nd5+ Kg3 Bc3 Nf5 Be5+ Kg2 Qc6 Bf6 Qf8 Bg7 Qcc3 Nh6 Qff4 Nf5 Qd3 Qa2 Qde2 Qa3 Qef3+
4K1Q1/2b1RBB1/n1P2Q2/1QR1Nq2/4Pbb1/q1Nr2PN/r2kQ2n/Q2r1n2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kg3 Ke6 Kf4 d5 c4 a5 e4 h5 b4 f5 g6 d4 b6 a4 b5 a3 g7 a2 c6 h4 b7 h3 c7 h2 b6 d3 g3 d2 c5 Qd7 Kg5 f4 Kg6 f3 c6 f2 Bc4+ Qd5 Bb2 f1Q Nh3 Rh5 Nc3 Bd6 Rc1 a1B Qf3 Na6 b8N d1N b7 Ne3 Nd7 Nf6 b8Q Qd3 Qb5 Nfg4 Rhd1 Rh7 g8Q+ Rf7 Bb3 h1R Rd2 Nf1 Rf2 Bb7 c8Q Ngh2 Qcf8 Bc7 Rd2 Bc8 Qh6 Ke7 e6 Kd6 Ne5 Rd7 e7 Rd8 e8Q Bg4 Qhh8 Qe6+ Kg7 Qf5 Bf7 Ra7 Kf8 Raa8 Qb3 Kc5 Qf6 Kd4 Qb5 Rd5 Qc8 Rd7 Ke8 Rd5 Qd1 Ke3 Rcc2 Ra7 Qa8 Rd7 Rf2 Qd6 Rfd2 Qa3 Rd6 Rg1 Re6 Rd3 Re7 Rh1 Rc1 Rg1 Qf3+ Kd2 Na2 Rh1 Bd4 Bb2 Rc5 Bc1 Bb2 Ne3 Bd4 Rd1 Nc3 Nef1 Be3+ Ke1 Bh6 Bf4 Bf8 Kd2 Bg7 Nb4 Qd8 Ra5 Qd4 Na6 Qda4 Qb3 Qa1 Ra2 Qg6 Qb2 Qf6 Qa3 Qe2+
1Nb1n1Q1/1q1BRK2/1PNr1B2/Q7/Rr1NP1q1/n2R2Rq/2b3nP/5Rbk b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 Ke4 g5 d4 f5+ Ke3 a5 b4 f4+ Ke4 f3 e3 c4 h6 c3 h7 f2 d6+ Ke6 d7 g4 b6 g3 b7 g2 b5 c2 b6 a4 Ba6 f1B Qe1 a3 Nf3 g1Q Qa5 a2 Nc3 Qc7 d8R Nh6 Nb5 Nf5 Bb2 c1Q Na7 Bc5 Bb5 Nh4 Rg8 Na6 b8N Qb7+ Nac6 Nc7 Rg3 Rd8 h8Q Bd3+ Kf4 Kd5 Kg5 Ke4 Kf6 Rd6+ e6 Qc2 d5 Qcg2 Kf7 Ne8+ e7 Qh3 Bf6 Bc2 Nfd4 Ng2 Qg8 Qd1 Rf1 Qdg4 Qd2 Ra4 Qa5 Rb4 Ba4 Rd8 d6 Rd7 Rad1 a1N Rd3 Nb3 Bb5 Nd2 Ra3 Nc4 Ra4 Rd8 d7 Na3 Nf3 Kf5 e4+ Kf4 Nfd4+ Qf3 Nb3 Bg1 Nbd4 Ke3 Rb1 Kf2 Rd1 Ng7 e8R Qfg4 Re7 Ne8 Rb3 Nh4 Rf1+ Kg2 Rg3+ Kh1 Qg6 Ng7 Qg5 Ng2 Qd5 Rh8 d8R Ne8 Qg5 Rh5 Qg8 Rf5 Nf3 Rh5 Rd3 Rh6 Nfd4 Rg6 Nd8 Rh6 Bd7 Rg6 Nd8c6 Rh6 Bg7 Rd6 Bf6
2BQn1q1/n1b2PQb/3B2N1/1kQQbK2/r5Q1/R1PP4/2Rr3N/q2q1N1r b - - 0 1 illegal: No possible last move, all moves rejected
1R2b2Q/1K1Pkr1N/B4Rn1/P2n2n1/2RBP1NN/2N5/3r1b1q/2QqNbq1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 f5 Ke3 b5 Kd4 g5 h4 b4 e4 c6 a4 b3 e6 f4 d6 b2 Kc5 g4 d4 f3 d5 g3 e7 f2 a6 g2 a5 Kd7 e8N Be7 a7 Rh6 Ba6 f1B Nf3 g1Q+ Be3 Bg5 Ra4 Bf6 Ne1 Bd3 Qc1 Rh7 h6 Qh2 h5 Ne7 Rf1 Rf7 h7 Bh4 h8Q Bf2 h6 Ng6 Nc3 b1N h7 Nd2 Bd4 Nf3 Rc4 Qg5 Kb6 c5 Ra4 Nc6 Rc4 Kd8 d7 Qgg1 Nf6+ Ke7 d8N Ng5 Ng4 Bd7 Ne6 Rd8 a8R Nb4 Rb8 Be8 Nf8 Be2 Qg7 Rd7 h8N Rd6+ Kb7 Rd8 Nb5 Bd3 Nh7 Rd6 Rc3 c4 Rc2 c3 Qh6 Bh4 Rf6 Bf2 Qh3 Rd8 Qh5 Bf1 d6+ Kd7 Qh4 Nd5 Qh6 Rc8 Qh4 Kd8+ d7 Ke7 Rd2 c2 Nc3 Rc4 Rd3 Ra4 Rdf3 Ra1 Rc6 Ra2 Rc4 Bg3 Rf6 Bf2 Qe3 c1Q Qhh3 Qd1 Qc1 Rd2 Qh6 Nf8 Qh3 Nfe6 Ng6+ Kd6 Qh6 Be3 Nhf8 Bf2 Nh4 Ke7 Qh8 Nef4 Nh7 Ng6 Rd8 Qhg3 Ra8 Q3h2 Rb8
1BK5/2R3n1/2bR1R2/bq1b1N1Q/k2rP3/PQb2P2/B1R1R1BN/2rb2nn b - - 0 1 illegal: No proof kernel
KnkNR3/6Qr/3rQr2/b1r2R1P/1B2BR2/rP1b2N1/1P2n1n1/RqR1B3 b - - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 h5 g4 b4 gxh5 b3 axb3 Be6 Ra2 Bd7 Ra1 Bc8 Ke2 Kd7 Ke3 g5 Kd4 a5 Kc5 e5+ d6 g4 d4 e4 f4 a4 h4 a3 f6 g3 f5 e3 d5 a2 h6 c6 h5 g2 h7 e2 f7 e1N f6 Qe8 Kb6 c5 Nc3 c4 Qg4+ Kd8 d7 Ra4 Ne4 c3 Nh3 g1R Ng3 c2 Qe6 Na6 Ka7 Re4 Ka8 Nh6 Nf4 Nf5 Bd2 c1R Bd3 Nb8 Bb4 Rd4 Be4 Rf1 Rg1 Bc5 f8R Ng2 f7 Ba6 Be1 Kc7 d8R Bb6 Rh1 Qb5 Rde8 Qd3 Rh4 Ba5 d6+ Kb6 d7+ Kc7 d8R Qb1 Rh1 Rc5 Rd5 Bd3 Re5 Rd6 Rg1 Rg8 h8Q Nd4 Qg7 Rh8 Rf5 Rh6 Qef6 Kd7 Ne6 Rh7 Nd8 Ne2 Qe6+ Kc7 Rg5 Rf6 Rf5 Qc2 Rc1 a1R Rgf1 Ra3 R1f4 Rd7 Rh8 Qd1 f8B Kc8 Ra1 Qb1 Rg8 Rd5 Bfb4 Rc5 Rgf8 Rc6 Rc5 Rc7 Rc1 Rc5 Qc4 Rdd6 Rf7 Rfh6 R7f5 Rhf6 Qe6+
1K1Nq3/2rb1b2/1B1N2N1/1Q1PbP2/1N5B/R1Rr2b1/n1Pb2r1/3BkQnN b - - 0 1 illegal: No proof kernel
Q3N1qR/Q1n2B2/1NP3R1/2n3r1/1NP2kBr/n6n/1KNPbn1b/N2b2B1 b - - 0 1 illegal: No proof kernel
1QQ2N2/2n1QnP1/n5b1/2B1Bk2/1b2r1b1/Qn2rPPB/Q1q2R2/1nN3RK b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 d4 c5 g3 h5 b6 a5 b7 e5 f6 h4 d6 Ke6 d5+ Kf5 g6 e4 g7 e3 f7 h3 b5 a4 d7 a3 d6 h2 b6 a2 Ba3 e2 Qa4 c4 Bc5 c3 Nf3 c2 Ng5 c1N Nh7 Qc7 d8Q Nb3 d7 Ne7 Nd2 Na6 b8B Nd5 Rg1 h1B b7 Be4 f3 Ra7 Kf2 e1N Qh4 Nd3+ Kg2 Ne5 d8Q Ra8 Rb1 a1N Qa2 Nc2 Qhe7 Na3 Rb2 Nb1 Kh1 Qc6 Bbd6 Ndc7 b8Q Be6 Qbc8 Rb8 Rc2 Rb4 Qb8 Bd3 Qdc8 Re4 Rb2 Qa4 Rc2 Qc4 Rb2 Qc2 Bh3+ Ng4 Be5 Re3 Nf6 Rh4 Nd7 Be4 Bb6 Bd3 Qea3 Bb4 f8Q+ Bf7 Qd6 Bg6 Bc5 Bb5 Nf8+ Bd7 Qe7 Qd3 Nc4 Qe2 Qd6 Kg5 Bcd4 Nh6 Bc5 Rhe4 Rd2 Qd3 Nb2 Bg4 Rf2 Qc2 Nd3 Nf7 Nc1 Nd8 Qcb7 Nf7 Qe7+ Kf5 Q7c8+
Qn2r1q1/3B2Pr/N2N2P1/7r/1bR1Nnkn/2BNn2N/nBPQRK2/5b2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 Kf7 b4 h5 f4 d5 b6 a5 g6+ Kf6 b7 e5 g7 h4 c6 d4 c7 d3 b5 h3 b6 d2+ Kf2 h2 g5+ Kf7 f6 Ke6 f7 Kf5 g6 a4 Nc3 e4 Bb5 a3 Nh3 a2 Bb2 Ba3 f8N Nf6 Nd7 Nh5 Ne5 Rh7 Re1 h1R Re2 Bb4 Nd3 Kg4 f5 Nf4 f6 Qg8 f7 Rh5 Rb1 a1N f8B Nb3 Qe1 Be6 c8N Nc1 Bd7 Na2 Nd6 Bf5 Be7 Be6 Bf6 Rh7 Ng5 R1h5 Nh3 d1N+ Kg1 e3 Qd2 Na6 Nce4 Re8 b8Q Bf5 Qa7 Nb8 b7 Be6 Qa8 Bf5 Rh2 e2 Bfc3 e1N Re2 Ne3 Kf2 N1g2 Rh1 Nh4 Ra1 Nc6 b8N Be6 Na6 Nb8 Ba4 Bc4 Bc6 Nc1 Ra5 Na2 Rc5 Bf7 Rc4 Bd5 Nec5 Bg2 Nce4 Bf1 Bd7+
1q2BN2/NQ1bn2Q/1Q5K/2n1n1R1/n1rP2bb/2QQBPP1/2r3RB/1r1k4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 b4+ Kd4 b6 e5+ Kg4 a5 Kh5 c5 f6 a4 d6 c4 b7 a3 d7 c3 b5 e4 f7 c2 g6 a2 g7 e3 b6 e2 Rh2 Kd3 Nc3 Ne7 g8Q Na6 b8B Nc5 b7 Ra4 Nb5 Rc4 Na7 Na4 Nh3 h6 Rb1 a1N Ng5 Nb3 Ne6 Nbc5 Rb5 Qe8 d8Q+ Bd7 Bd6 Bg7 b8Q Bf6 Bf4 Bh4 Qb7 Qf8 Qa5 Qb8 f8Q Rh7 Qgf7 Rh8 Q8g7 Rc8 Nf8 Rc6 Ba3 c1R Qab6 Rb1 Be3 Rc8 g3 Rc6 Bh3 e1N Rg2 Nf3 Bb2 Ne5 Bbd4 Rc7 Qf1+ Kc2 Qd3+ Kd1 Qff5 Na6 Qfh7 Rc2 Rd5 R7c4 Be6 N6c5 Bf7 N5g6 Rf5 Ne5 Be8 Nf3 Kg4 Ne5+ Kf4 h5 Rg5 Bg4 f3 Bd7 Rg6 Bf6 Qde4 h4 Bg1 h3 d3 h2 Bde3 Bh4 Qgf6 N5c6+ Qe5 Qc8 Qc3 Ne5 d4 Qb8 Qed3+ Rd2 Rf2 h1B Bh2 Bg2 Rg4 Bh3 Rg2 Bf6 Rg7 Bhg4 Rg8 Bg7 Kg5 Bf6+ Kh6 Bh4 Qde4 Rdb2 Rg5 Rc2 Qed3+
2N5/B1Q2Q1r/1Nbbr3/3nn1P1/Bkr1P1b1/NNRPn1N1/KRr4q/4R3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Ke7 e4 f5 g4 c5 g6 a5 d6+ Ke6 b6 h5 d7 f4 g7 h4 b5 a4 b7 f3 b6 c4 g5 c3 Rh3 a3 Qc2 a2 Kd1 f2 Bb5 f1B Na3 Qc7 d8N+ Ke7 e6 Kd6 e7 Kc5 e8Q Qf4 Ne6+ Kb4 Nd4 Nd7 b8R Ne5 b7 Bg4+ Nge2 Rh6 Qf7 Nf6 g8N Qh2 Nb3 Bd6 Ba4 Nd5 Ne7 Re6 Nc8 Ra5 Bb2 Rc5 Kc1 Rc4 Re3 h3 Ng3 Bfe2 Rb1 a1N d3 Bd1 Re1 Qg2 Ra8 h2 b8N h1R Nd7 Rh7 Ndb6 Qh1 Qh2 c2 Bd4 Qg1 Kb2 c1R Rb8 Nc2 Ka2 Nce3 Rb2 R1c2 Rb7 Qf2 Rc7 Qe2 Qh6 Qh2 Qhg7 Bh5 Rc6 Bdg4 Qc7 Be8 Qgf7 Ng2 Rc5 Bc6 Bf2 Nge3 Bg1 Rd4 Rc3 Rc4 Nd7 Nd1 Ba7 N1e3 Ndb6
3N2q1/K1B1Q1br/1n1Rn1bQ/1bPQ1r2/3P3N/2B1kb2/2nRB1QP/1Q5r b - - 0 1 illegal: No proof kernel
2k1r1Qn/2B3N1/5PRn/5R1B/nn2rBB1/5N1R/1Pbb1P1K/1r2bqBQ b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 d4 h5 b6 a5 d6 e5 f6 c5 b7 h4 g6 h3 d5 h2 g7 e4 g5 a4 g6 c4 Na3 c3 Nc2 a3 Nd4 a2 Nf5 e3 Bh3 c2 Kf1 e2+ Kg2 e1B Bg4 Ra4 Nf3 Nc6 b8B Nce7 Bf4 Nh6 g8B c1N g7 Ne2 Bf7 Re4 g8R Nc3 Bfh5 Na4 Rg6 Rg8 Rc1 a1N Rc5 Nc2 Bc7 Nb4 Ng7+ Nef5 Rb5 Nf7 Bb8 Qe7 Ra5 Kd8 d7 Nh8 Bbe5 Qd6 Qa1 Kc7 d8B+ Kd7 Kh3 Qa6 d6 Bd2 Qg1 Qf1+ Qg2 Ba6 Bc7 Kc8 Rd5 Bd3 d7+ Kb7 d8Q Bc2 Bed6 Nh6 Rf5 Be7 Bde5 Re8 Qd5+ Kc8 Qg8 Bd8 Rgg5 Be3 Ba5 Nc6 Bg3 Qd3 Rg6 Bc1 Bd2 Ba5 Bc7 Bc3 Bdf4 Nb4 Re1 h1R+ Bh2 Be3 Rg1 Qc4 Qf1 Qa6 Rg3 Qb5 Qg2 Rb1 Bg1 Be1 Qh1 Qf1+ Kh2 B3d2 Rh3
b2Q4/7B/P1bBN1N1/r1N2BB1/q1n2P2/3Rb1nK/PkrB2Qn/1r2Rr2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 Kf7 f4 b5 Kf2 e5 Kg3 h5 d4 c5 d6 c4 f6 Ke6 f7 Kd5 d7 c3 g6 e4 g5 h4+ Kg2 b4 g7 c2 g6 h3+ Kg3 h2 Qe1 e3 Ne2 Kc4 d5 b3 d6 b2 Nd4+ e2 Qf2 Qe8 d8Q Ne7 g8B Nbc6 d7 Ne5 g7 Bb7 Bd2 c1R Bh7 Rc2 g8N Bc6 Qg2 Nf5+ Kh3 Bc5 f8B Ng3 Ne6 Be3 Nc3 b1R Bd6 Ra7 Rg1 h1B Ne4 Kd3 Ne7 Nc4 Ng6 Ra6 Ng7 Kd4 Nc5 e1N Be2 Nf3 Bd3 Nh2 Bf5 Rg8 Rd1 Rh8 Bc1+ Kc3 Bd2+ Kb2 Nge6 Rg8 Bb4 Rg7 Rd3 Rf1 Re1 Rb6 Nh4 Rg5 a6 Ba8 Bd2 Rb8 Qf2 Bhc6 Qg2 Rb3 Ng6 Rb5 Bg4 Re5 Bf5 Ra5 Nb7 Reb5 Nbc5 Bcb7 Rd4 Ka3 Qf6 Rb1 d8B Qa4 B8e7 Kb2 Rd3+ Ne5 Qf8 Bc6 Qd8 Nc4 Bg5
KN1bb1k1/PBr2b1r/1P1Q1n1B/R1PB2b1/1q4Q1/2RQ1N2/r1Q1n3/n5Q1 b - - 0 1 illegal: No proof kernel
4q2q/2BR4/k2n3N/NN3BQ1/1KR1PPqR/1RPr4/1Qb1n1q1/b3q1rR b - - 0 1 illegal: No proof kernel
1K2n3/1N1B1R1n/r2QR1BP/1b4k1/2q1R2b/Bq2P1R1/n1PNn3/nrR3Q1 b - - 0 1 illegal: No possible last move, all moves rejected
1q5R/5QQB/3P1KbN/4PB1B/1PrB1R2/n2rr2r/1B4qN/1Nn1k1br b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 c4 d4 a4 g4 c3 b4 a3 d6 h4 b6 Kc6+ e6 h3 g6 h2 g7 a2 b7 c2 g5 Nd7 b8Q Nb6 g6 Rh3 d7 Bc5 e5 Kd5 e7 Nc4 e8N Ne7+ Kf6 Ke4 g8B Raa3 g7 Rae3 d5 Na3 Qd6 Nc6+ Qe7 Na5 d6 Nb3 Bb2 c1R Nf3 Rc4 Be2 Nc1 Qb3 Bd4 Rf1 h1R Nh2 Ba6 Rf2 Qb8 d8B Bc8 Bd1 Bf5 Bh7 Bg6 g8B Rd3 Qd7 Ke3 Bh5 Bc5 Rf3+ Ke2 Rf4+ Ke1 Bb6 Bg1 Ng7 Rhe3 B6d4 Rh3 Ke7 f5 Be6 Rde3 Kf6 Rd3 Rf3 f4 Nf5 Re3 Rf2 f3 Nh6 Rd3 Bf5 Re3 Rg2 f2 Qg7 f1Q Rg4 Qg2 Rf4 Rd3 Nc3 Rhe3 Rb1 a1R Qa2 Rc8 Qaf7 Ra2 Ra1 Rc4 Nb1 Rh3 Bbc3+ Rad2 Bb2 Rde3 Ra2 Rdd3 Ra1 Nc2 Ra5 Na3 Ra8 Qb5 Re8 Qb8 Rh8
3n1bqB/1rN2QPQ/1RBq3n/7b/4N1R1/1N5n/nrQP3P/QQ2nK1k b - - 0 1 illegal: No proof kernel
R1K1R3/Q3bqP1/PNQrN1R1/2q2kBq/NnPq4/1q1b1RRB/nr6/8 b - - 0 1 illegal: No possible last move
3rNBq1/4P2n/3Qr1rb/1Nr2Bn1/1P6/RN2QBP1/RNq2r2/N2b1k1K b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 e4 a5 d4 c5 b4 h5 g3 f5 Kg2 h4 b6 a4 e6 Kd6 b7 a3 e7 a2 e8N+ Ke7 e5 f4 g6 c4 e6 c3 g7 c2 Nf3 Nd7 b8Q Ngf6 g8B Ra4 Bh7 Rg8 Bf5 Bh6 Qe2 Ra8 Na3 Ne5 Qe3 Nh7 Nd2 Nf3 Nb5 Nfg5 Nb3 Rg6 Rh2 f3+ Kh1 f2 Be2 h3 Bf3 Qc7 Rg2 h2 Qb6 Bb7 Qc6 Rd8 d6+ Kf8 d7 Ke7 d5 f1R+ Rg1 Rf2 Rg2 Qc8 Bb2 Qa8 Bg7 Qa4 Qcb6 Ba6 Qbd4 c1R+ Qd1 Rc5 Qdd4 Ra8 d8N Rac8 Nf7 Rd8 Ne5 Bc8 Nc1 Qc2 Nb3 Bb7 Nc4 Ba6 Rc1 a1Q Nb2 Qa2 Na1 Qac4 Rd1 Bc8 Rd3 Bd7 Nbd6 Ba4 Ra3 Qa2 Nb5 Bb3 Nec7 Ba4 Qdf4 Qac4 Bf8+ Kf6 d6 Bb3 e7 Qg8 Qc1 Ba4 Qfd2 Ke5 d7 Bb3 Ne8 Ba4 Nbc7 Re6 Qd3 Bb3 Qa6 Kd4 Qg1 Ke3 Qd6 Rg6 Nb5 Re6 Ba8 Ke2 Bae4 Rdc8 d8N Ba4 Nb7 Rd8 Qc1 Rg6 Qe3+ Kf1 Na5 Qe2 Ba8 Rf3 Nbc4 Ne4 Qed2 Bd1 N5b3 Neg5 Q2d3 Re3 Bf3 Ree6 Qe3 Qd3 Rga2 Qc2 Be2+ Ke1 Kg2 h1R Nb2 Rf1 Kh2 Rf3 Kh1 Rf2 Bh5+ Kf1 Bf3
3b3b/2P1rq1Q/B1R1b2b/1PR2nq1/7b/R1P2R1n/Q3KB2/kNrRN2B b - - 0 1 illegal: No possible last move, all moves rejected
1Qbk2r1/B1NBn2q/B1Q1R2b/4nP2/RR4r1/KNP2R1r/P3Rq2/q1r5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Kc3 b5 Kb3 e5 h4 d5 f4 d4 h6 e4 c3 b4 c6 g4 c7 g3 f6 e3 f7+ Kd7 a6 d3 h5 d2 a7 e2 h7 e1Q h6 g2 Nf3 g1R Rh2 Qg5 Re2 Qg6 Nd4 Qg4 Ne6 Bg7 f8R Bb7 c8B+ Ke7 Nc7+ Be5 Bd7 Qg2 f5 Qef2 Rf6 Qh2 Re6+ Kd8 Ka4 b3 Ka3 b2 Qa4 d1Q Nd2 b1R Qc6 Bc8 Nb3 Qb6 Be3 Rc1 Rb1 Ne7 Bd4 Rhg8 h8Q Bg7 h7 Bh6 Qe5 Qb7 h8R Rg4 Bc5 Qf2 Bd4 Bg5 Rh3 Bh6 Rf3 Rh8 Rd2 Qde1 Ba6 Qeg1 Re2 Qgf1 Qcb5 Nbc6 Qed5 Rb8 a8R Ne5 Qdc6 Rhg8 Qb4 Qa7 Qbd6 Rb4 Rbb2 Rh4 Be3 Rbg4 Qb4 Rh3 Qb8 Rc2 Bb6 Qa1 Bd4 Qb7 Ba7 Rc1 Rbd2 Qbb6 Rd4 Qh4 Ra4 Qbf2 Rb4 Qh5 Qe4 Qg6 Qc6 Qh7 Bd3 Rd4 Bc5 Qg6 Raa4 Qh7 Ba6 Rdg4 Ba7
n2Q2bn/4b1kR/B2Qq2r/4P3/1q2BNB1/3b4/RNPPrB2/KQ1Bb2r b - - 0 1 illegal: No possible last move
3bQr2/BN1b1n2/3q2N1/2nPBN2/n2nr1N1/R1P1Q2N/P1k3Kb/1B1q2R1 b - - 0 1 illegal: No possible last move
1QBK1Qrb/1qB3Q1/1R4n1/RN1P3P/3q3N/1rPQb2k/2q3R1/Q2n2qb b - - 0 1 illegal: No proof kernel
R1q2q2/1b1qb2b/1RrrB2B/Pk1B1Q1B/b3PKnN/QN6/1P3B2/5R1n b - - 0 1 illegal: No proof kernel
1NB2RbB/2Q2R2/2KbqrNB/P1P2kP1/3q3b/6Q1/2Bb2nn/2BQr2q b - - 0 1 illegal: No proof kernel
1b6/4RB2/qqbkr1P1/P1n1rQ1B/NQn3Qr/r3PBB1/1NR4n/1K3B2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 a4 Kd7 g4 h5 d4 b5 Kd2 f5 Kc2 c5 g6 c4 g7 c3 d6 b4 a6 f4 a5 f3 d5 f2 e6+ Ke8 e7 Kd7 g5 h4 a7 h3 Rh2 Rh7 Nd2 b3+ Kb1 b2 Nc4 Qb6 Bf4 Rh5 Bg3 Nh6 g8B Na6 Bf7 Bb7 e3 Re8 a8B Bg7 Ra2 Be5 Ne2 Bc6 Qc2 Nc5 Qf5+ Ne6 Rg2 h2 Qg4 h1R Ra4 Kc8 d7+ Kc7 Ra2 Nc5 d6+ Kb8 Qf5 R1h4 Bb7 Ng4 d8Q+ Ka7 d7 Bb8 Qc7 Nh2 d8Q Rh6 Qcd6 Re6 Q8d7 Re5 Kc2 b1N Nb2 Nd2 Qg4 Nc4 Qdf5 Re6 Kb1 Re5 Ba8 Ka6 Bh5 Kb5 g6 Re6 Ra4 c2+ Ka1 Bd7 Bf3 c1R+ Ka2 Rc2 Kb1 Rc3 Qdf4 Ra3 Nc3+ Ka6 Rb4 Bc6 Nca4 Kb7 Rb3 Re5 Q4e4 Kc7 Rc3 Nd6 Qb4 Nc4 Rc2 Kd6 Rg1 Rf8 e8B Rf6 Bf7 Re6 Rh1 Kd7 Bh3 Ke7 Rhc1 f1Q Bhg2 Qd3 Bf1 Qd6 Rd1 Qa6 Rd4 Qc7 Rd8 Qcb6 Re8+ Kd6 Re7
8/nRrB3R/R2b1P2/BN1Q1br1/R1Pq1r2/1r1n2R1/1P1N1QK1/1k1Bqn2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 Kf7 h4 Kf6 f4 d5 Kf2 e5 c6 a5 b6 g5 c7 g4 h6 g3+ Kg2 d4 b7 a4 h7 e4 h5 d3 h6 d2 Qh5 d1R Qh3 a3 Nc3 e3 Qh5 a2 Nge2 Rd7 Rg1 Ne7 Nb5 Nd5 Ned4 e2 Nb3 Ra3 Nd2 Nc6 b8R Na7 Rb7 Rb3 Qf3 e1Q Be2 Bd6 Bd1 Nb4 Qd5 Rf8 h8R Nd3 h7 Rg7 Rg8 Be6 c8B Rc7 h8R Qd7 Kf3 g2 Rg3 Rf7 Rgh1 g1R R8h7 Qd8 Bd7 Rg2 Rgh3 Rg5 Rg3 Qh8 Kg2 Rf8 Rb1 a1N R1h4 Nc2 Ra1 Rf7 Ra4 Qd8 Kh3 Ne3 R4h6+ Ke7 Rf6 Nf1 Kg2 Qh8 Rfh6 Qd4 f6+ Kd8 Bf3 Bf5 Bd1 Rf8 f7 Ke7 Rh4 Kf6 Rh3 Re8 Rh1 Re4 R1h6+ Bg6 f5 Rf4 Qc6 Ke5 f8Q Rf3 Qd5+ Kf4 Rh1 Ke3 f6 Bf5 Qh6 Ne5 Qh2 Kd3 Qg1 Qe3 Qf2 Rf4 Nf3 Qe2 Bd2 Qe4 Ba5 Qe1 Be2+ Kc2 Nd2 Kc1 Bd1 Nd3 Rh8 Be5 Ra8 Bd6 Rh3 Nc8 Ra6 Na7 Bg4 Kc2 Rh7 Kc1 Be2 Kc2 Bd1+ Kc1 Nf3 Kb1 Nd2+
BK6/1b1qNQN1/3P4/3P2R1/n4Q1B/1qQr3R/NkqrNPrn/2b1N2q b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 a5 h4 c5 h6 g5 b6 c4 b7 g4 d6 a4 h7 e6 h5 a3 f6 c3 h6 c2 f7 Kb3 Bg2 g3 Nc3 a2 Nf3 Qc7 Rh3 Ra3 Ne1 Ra8 Qf3 Qb6 Bg5 c1Q Bh4 Na6 b8N Nc5 Nc6 Bb7 Nb4 Nf6 Ne2+ Qc3 Rc1 a1Q Na2 Na4 Rc2 Bg7 f8N Rd8 Qh5 Qa7 Qf7 Qb1 Bh1 Qd3 Rc5 g2 Ra5 Rg8 h8N g1Q h7 Bh6 Nhg6 Bc1 h8Q Qc2 Ne7 Rg3 Bf3 Qh1 Qhg7 Rg2 Rd5 Kc4 b4 Kb3 Rb5 Kb2 Bd5 Ba6 Ba8 Qd7 Qg3 Qdb3 Qc3+ Ka3 Nfg6 Bb7 Nf5 Bh6 Nge7 Bc1 Qd2 Kb2 Ng7 Ne4 Qdf4 Ng3 Rc5 Nf1 b5 Rh8 b6 Nh2 Kf6 Rf8 Rg5 e5 d5 e4 Ke5 e3 Kd4 Bc6 b7 Rc8 b8Q Bb7 Ke5 Rc3 Qc7 Rd3 Qa5 Qe8 Ke6 Rd2 Ng1 e2 Qc7 Qeb5 Qc6 Rd3 Kd7 Rd2 Kc7 Rd3 Nef3 e1R Kb8 Re2 Ne1 Red2 Qc5 Qc6 Ne2 Qd7 Qc3+
b2R4/R2qrN2/1KPN3P/Q1B1nP1k/5Rb1/1bn2N1Q/qN2N1B1/b2r2r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 d5 Kd4 b5 f4 g5 h4 e6 a4 g4 c4 g3 f6 b4 a6 g2 f5 b3 a5 b2 h6 Bd6 h7 Bb7 c6 Nd7 a7 Bf8 c7 Bc6 c8N Bg7 c5 Ne7 a6 Re8 h5 Ne5 h6 Qd7 Nd2 b1B Qg4 Bc2 Ne2 g1R Qh3 Bb3 Bg2 Rb8 Ra3 Ba8 c6 Rd8 Kc5 d4 Nf3 d3 Ra1 d2 Ba3 d1B Rh2 Rb7 h8N+ Kf8 f7 Nd5 Ra2 Nc3 Nd6 Ke7 f8R Rc7 Nhf7 Kf6 Kb6 Bh8 Bc5 Bg7 Nf4 Bh8 Nh4 Bg4 Ne2 Bg7 Ra4 Bh8 Rf4 Bg7 Nh8+ Kg5 Nhf7+ Kh5 Re8 Nd3 Rh8 e5 Rf8 e4 Rh1 Bb7 a8N e3 a7 Ne5 Rg8 Rd1 Rh8 Rg8 Rhf1 Bf6 Ra4 Rg5 Rd8 Bg7 Rff4 Rg6 Nc1 e2 Ra1 e1Q Ne2 Bh8 Nf3+ Qh4 Ka5 Bf6 Nb6 Ba8 Na4 Bh8 Kb6 Bg7 Qg3 Qh2 Nb2 Qc8 Ned4 Bh3 Bh1 Re7 Ra3 Ne4 Qg2 Bb7 a8Q Qd7 Na4 Ng4 Ne2 Ba1 Nc1 Nc3 Qf1 Qc2 Ne2 Qa2 Nb2 Ne5 Qa4 Rg5 Qb4 Ba8 Ra7 Rg3 Qa5 Rg1 Qg2 Bg4 Qg3 Bb7 Bg2 Ba8 Qh3+
Bqb4k/3r3b/P1B1Qn1K/Q1N3n1/2B2N1P/B2R1Nr1/2Rb1nP1/3B1n1q b - - 0 1 illegal: No proof kernel
2R5/5BbN/P2rqBP1/n3q1rB/4QPNN/n1N1KnQ1/3N2Rn/2r3kb b - - 0 1 illegal: No possible last move, all moves rejected
2BKQ3/b1n4R/P2P3Q/Rnb1Pn2/1N6/R2b1k1b/1R1RrBN1/q1r1B2q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 Ke4 c5 Kf5 b5 d4 g4 h4 f6 a4 c4 e4 b4 a6 b3 h6 b2 e6+ Kd6 h5 c3 h7 g3 a7 c2 a5 g2 h6 Na6 Na3 b1N Nf3 g1Q Bd2 c1B Nc2 Bb7 e7 Qh2 e8Q Qf2 Rh2 Qe7 Be1 Nc7 Ra3 Qf7 Qd2 Rc8 a8R Qg7 Bh3 Ba6 Nb4 Qfg1 Nh4 Bd3 Ng2 Qh1 Ra7 Nc3 a6 Ra8 Rb7 Be7 Rb5 Rc8 Rba5 N3b5 Qg5 Be3 Qgh5 Qg3 Bf2 Qh4 Kg6 f5 Kf7 f4 Bg4 Rd8 Bc8 f3 Be1 f2 Qg6+ Nf6 Qg5 Rg8 h8B f1B h7 Ng4 Qh6+ Rg6 Bg7 Re6 h8R Qg5 Rh7 Qe5 Bh8 Bg1 Bf6 Ne3 Bfh4 Nf5 Bhf2 Rd7 Ne3 Bh3 Ng2 Na8 Nc2 Rc7 Nb4 Bd8+ Kf8 Rc1 Kf7 Bc7 Kf8 Bb8 Kf7 Kc7 d6+ Kb6 d7 Ba7 d8R Nac7 d5+ Qd4 d6 Kc5 Rd7 Kc4 Kf8 Qa1 Rdg7 Re5 Rg3 Re6 Re3 Kd4 Re2+ Ke5 Rb2 Re7 Bh4 Bgc5 Rd2 Kd4 e5 Ke4 Bhg3 Rg7 Bgf2 Kf3 Rb2 Rg4 Kf7 Re4 Rd2 Ne3 Ke7 Nf5+ Kd7 Re2 Kd8 Bg4 Rh4 Bh3 Rc4 Na8 Rcc2 Nac7 Rb2
2Br3B/B1r1n2P/3Q4/1B4q1/R1b2PNq/1RBP1N1r/1KnQ1q1b/1R2r1k1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 a4 Kf7 h4 Kf6 f4 e5 a6 b5 h6 g5 h5 c5 d6 g4 h7 e4 h6 g3 a7 e3 d7 g2 a5 b4 a6 e2 Ra3 b3 Nh3 g1Q Nf2 b2 Rb3 c4 d3 c3 Qd2 Qb6 d8Q+ Ne7 Qd6+ Be6 Ng4+ Kf7 f6 Kg6 f7 Kf5 Qc6 c2 Qd6 Qgc5 Bh3 Bc4 Rf1 Nbc6 Rg1 Re8 a8R Rd8 a7 Nb4 Rf1 Bg7 f8B Bd4 Bg7 Bg1 Bc3 Bh2 Rg1 Qd5 Rf1 Qg8 Rg1 Qg5 Rf1 Rhf8 h8B Rf6 h7 Rh6 Qe3 Rh5 Nd2 b1Q Nf3 Qd4 Kd2 e1R Ba3 c1R Rg1 Nc2 Bc5 Qa2 Rf1 Qdf6 Qe2 Rb1 Qd1 Rb2 Kc1 Qh4 Bf2 Qfg5 Ra3 Re4 Nge5+ Qhg4 Qe2 Rb7 Be3 Nd4 Rb3 Rc7 Qd1 Qf2 Qd2 Rh6 Kb2 Nc2 Rb1 Rh5 Rc8 Rh4 a8B Rh6 Bb6 Re1 Bc6 Rh5 Ra8 Rh4 Bg2 Q4h5 Ra4 Qhh6 Bb5 Rh3 Ng1 Qgh4 Bb7 Q6g5 Nc6 Kg4 Bc8+ Kg3 Nf3 Kg2 Ba7 Kh1 Nce5 Kg2 Ng4 Kh1 Nd4 Kg1 Nf3+
rn1R3N/3q1RPn/n1R2qRk/RKQ2br1/2P4n/2b5/PBq1B2N/Q6Q b - - 0 1 illegal: No possible last move
1Nkq1nb1/1b1RrqP1/2RQnN1Q/8/KPr4R/B1bRnbP1/B7/4RB2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Kd7 Kd2 a5 Kc2 h5 Kb3 c5 e4 f5 d6 f4 b6 c4+ Ka4 c3 b4 f3 b7 f2 g3 h4 d5 c2 e6+ Ke8 d7+ Ke7 g6 h3 e5 h2 Ba3 c1N Qh5 Ra7 Nd2 Nd3 Ngf3 Bg7 Re1 Nh6 Ne4 Nf5 Nf6 Ne3 Nd4 Nf4 Qh6 Re8 Rc1 Ra6 Re1 Rc6 Rc1 Rc4 d6+ Kf8 Nc6 Re7 Be2 f1B Rc2 Bh3 Bf1 Bg2 Rc3 Bd5 Rc2 Qe8 d8R Nd7 b8Q Bb7 Qc7 Bf3 Nb8 Bfd5 Rc3 Bf3 Rc8 Qd8 Rd3 Bbd5 Qb6 Bb7 Rc6 Bd5 Nh5 Ke8 Qc5 Bf6 g7 Nf8 Qd4 Rc7 e7 Bg8 Qb6 N4e6 d7+ Kf7 e8B+ Ke7 Rg1 h1B Bf7 Bd5 Rh1 Bf3 Kb5 a4 Rh4 Qe8 Qc5+ Kd8 Qd6 Qe7 Bb2 a3 Ka4 a2 Ba3 Nf4 e6 Bc3 Nf6 a1Q Bg6 Qb2 Be4 Qf7 Bd5 Rc5 Bc4 Qd2 Ba2 Rc4 Qd5 Ke7 d8R Rd7 Qe5 Rc7 R8d5 Rd7 Qd6+ Kd8 Rb6 Kc8 e7 N4e6 e8R+ Rd8 Re7 Re8 Rd7 Re7 Re5 Nf5 Re1 Ne3 Rd5 Qd4 Ra6 Qb6 Rd3 Qd8 Rc6+
B2q1n1R/1bPP2QP/1rqB1rN1/K1R5/b3N3/R2Qq2R/1k2R1n1/1bb1B3 b - - 0 1 illegal: No proof kernel
2N1r3/qP2R2k/q1nb1Kb1/bBQ4N/3BP3/1b1Br3/PR1n1n1Q/B4QB1 b - - 0 1 illegal: No proof kernel
q4Qrr/1PRn1b2/NBkb2NP/2P2K2/1B2RQB1/1qN2B2/b2n1qb1/3B4 b - - 0 1 illegal: No possible last move, all moves rejected
6Q1/R2B2k1/Bn1n4/Q1qnPRN1/PP5N/2r2BnK/1rb1bB2/bNb4B b - - 0 1 illegal: No proof kernel
4N1b1/2QRP3/3Bb1BN/1P1Rb3/b1qr1n2/r1PQ1NkN/5r2/NrnQ3K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg2 Ke6 b4 Kf5 h4 Kg4 b6 a5 b5 d5 c3 f5 e6 g5 c6 f4 h6 a4 h5 a3 e7 a2 e8N d4 c7 d3 b7 d2 h7 Nf6 h6 Nd5 Nf3 Na6 b8Q Nc5 e4 Bg7 e5 Ra3 e6 Be5 e7 Rf8 h8N Nb3 h7 Be6 c8Q Qc7 Ng6 Qc4 h8N Ra4 Kg1 Kg3 Rh5 g4 Ba3 Nc1 Bd3 Bg8 Qf5 Rf7 Qb3 d1B Nbd2 Rf8 Rb1 a1R Bd6 R1a3 Qc7 Rb4 Ra1 Rf6 Qb1 Ba4 Nb3 Rf8 Kh1 Rf6 Ne1 f3 Nf4 f2 Nf3 f1B Nh3 Nf4 Nf7 Be2 Nh6 Bd1 Nbd4 Bdb3 Nc2 Na2 Bf1 Qd3 Kg1 Ng6 Nh4 Bf4 Qcc8 Bbe6 Bc5 Bb8 Qe4 Rf2 Nf3 Nf4 Kh1 Bc7 Qf5 Re4 Qb3 Qc4 Rd1 Bb8 Rd6 Rd4 Rd7 Bd6 Qg6 Bc7 Rhd5 Be5 Nfg5 Kh4 Qc7 g3 Bd6 Bf5 Na1 Bfe6 Bd3 g2+ Kg1 Kg3 Qh7 Rb2 Nf3 Rb1+ Qd1 Nc1 Nf7 Kg4 Kh2 g1R Bc2 Rg2+ Kh1 Kg3 Nh6 Rf2 Qe4 Nb3 Qe3 Nc1 Bg6 Qd3 Qe4 Qc4 Qed3
Rb2r3/1P1B2k1/N1b3Q1/q2NPRB1/3K3P/3R1rNb/NnN2Qrr/1n4b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 c5 Ke3 g5 h4 a5 b4 f5 d4 Kf7 b6 c4 e6+ Kg7 d6 c3 d7 c2 b5 g4 e7 g3 e8Q g2 d5 f4+ Kd4 f3 e4 a4 b7 a3 b6 a2 d6 f2 h6+ Kh7 e5 Ne7 Qe2 Ra3 Bg5 c1R Nc3 Na6 b8N Rb1 b7 Nc5 Na6 Qc7 d8R Bh3 d7 Nd3 Q8h5 Kg8 h7+ Kg7 Qb2 Rd1 Nge2 g1B Ng3 Nd5 Qg4 Rg8 h8N Bd6 Ng6 Re8 Nf4 Qa5 Qh5 Bb8 Qg6+ Kh8 Bg2 f1B+ Qf2 Rd2 Bf3 Rb3 Bg4 Bfg2 Rf1 a1R Na2 Nc3 Nd5 Rab1 Rc8 Be4 d8N R1b2 Nc6 Nb1 Ncb4 Rbc2 Rc3 Nb2+ Rd3 Re2 Bd7 Beg2 Ndc7 Bc6 Ncd5 Rcd2 Nc2 Ra3 Qe3 Rh2 Rf3 Rdg2 Rf5 Bf2 Rhd1 Bg1 Qf2 Rb3 Rc3 Ra3 Rc4 Rf3 Rd3 Bb5 Rc8 Bc6 Qh5+ Kg7 Qg4 Bc7 Ra8 Bd6 Qh5 Bb8 Qg6+
nR1Qr1R1/2BBN1Rn/8/1bk1br2/1P2P1R1/PKB3Nn/3r1q1p/2b1Q2R b - - 0 1 illegal: No possible last move
b3N2K/1bN4P/Q1N2P2/1Qnn2Nr/3Bq1rb/3PkN2/R3p1n1/1r2RB1R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 b5 f4+ Kh6 a4 g5 h4 c5 d6 g4 a6 b4 d3 c4 f6 e6 f5+ Kh7 f7 b3 d7 c3 h6 b2 a5 g3 a7 c2 h5 g2 a6 Be7 f8R Bb7 Na3 b1B Nf3 g1N Ra2 Qe8 d8N Bh4 Nb5 Nh3 Bb2 c1R Nd6 Ne7 Bd4 Nd5 Nc6 Nhf4 Qb3 Ng2 Qb5 Rc4 f6 Nd7+ Ke4 e5 Kf5 Rd8 a8Q e4 a7 e3 Rg8 Qe7 Ne8 e2 Qc8 Ra4 a8N Nc5 Nac7 Rc4 Qa8 Rb8 Qaa6 Bc2 Rg3 Bb3 Rgh3 Qe3 Rg1 Qe7 Rhh1 Qe3 Bc3 Rg4 Bd4 Kg8 h7+ Kf7 h6 Ba4 Qbb6 Ba8 Qba5 Rb1 Q6b5 Qc1 Qaa6 Qc4 Ke5 Kg6 Kd6 Rg8 h8N+ Kf5 h7 R8g5 Nf7 Rh5 N7g5 Kf4 Bc3 Nb4 Ke7 Ke3 Kf8 Qe4 Kg7 Bb3 Kh8 Bd5 Nd8 Bdb7 Nc6 Ne1 Bh3 Ng2 Re1 Nd5 Bb2 Ngf4 Bf1 Ng2 Bd4+
1br2Q1k/Q2P4/Q2BBB2/1Q1NPnn1/p1b4q/2r4P/1R4R1/KQn1Nr1b b - - 0 1 illegal: No possible last move
RrkRbn1B/1p3n1r/2b3qn/1P1B2R1/NN3bQQ/1NP2R2/KP5r/5R2 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 c5 gxh5 c4 a4 c3 dxc3 Rh6 c4 Qb6 c5 Qb5 axb5 Rh8 Kd2 Kd8 Kc3 g5 Kb3 e5 h4 d5 f4 a5 c6 a4+ Ka2 d4 c3 g4 f6 d3 h6 e4 f5 e3 h7 e2 h5 e1R h6 d2 c7+ Kd7 f7 g3 f6 g2 Nf3 g1Q Bg2 a3 Ne5+ Ke6 Rh5 Bd7 c8N Qf1 Nd3 Re2 Rg5 Bc6 Nb4 Kd7 Bd5 Rh2 Qg4+ Qf5 Nb6+ Kc7 Na4 d1B Be3 Kc8 Bc5 Bd6 Bd4 Bf4 Nd2 Nd7 Nb3 Ne5 f8R+ Be8 f7 Bf3 Rd1 Rb8 Bc4 Bc6 Bd5 Ne7 Rf1 N7g6 Rg8 Qe6 f8R Nf7 Rg7 Qf5 Rfg8 Nf8 Be5 Nd6 Rd7 Nf7 R8g6 Qc2 Rf6 Qg6 Rf3 Rg8 h8R Rg7 Rg8 Rh7 Rf1 Bc1 R6f3 Bf4 Nc1 Bd2 Bh8 Bf4 Kb3 a2 Ka3 a1N Ka2 Rg7 h7 Nc2 Nb3 Ne3 Qe6 Nh6 Qg4 Rf7 Be5 Nc4 h8Q Nd6 Bf6 Nhf5 Qhh4 Rh7 Bh8 Nh6 Rd1 Ra8 Bg7 Ne6 Nc1 Kb8 Bh8 Ndf7 Rd6 Kc7 Rd8 Bed7 Nb3 Rc8 Rge8 Nf8 Rdf1 Ra8 Re6 Be8 Red6 Bcd7 Ra6 Bc6 Rd7+ Kc8 Ra7 Rb8 Ra5 Rd2 Ra8 Rh2 Rd8+
1NQrq3/1R1R1RKR/n2N4/n3Bq2/1q1bkrB1/1PP1B1P1/6bp/n1R3Q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 d5 Kd4 h5 Ke5 a5 f4 d4 b3 e6 f6 Kg6 f5+ Kf7 b6 d3 g6+ Ke8 g7 Kf7 c6 a4 g3 d2 c7 h4 c3 h3 b7 a3 Nf3 a2 Nd4 Rh4 Be2 Qe7 Qg1 d1Q Nc6 Qb4 Na3 Qc2 Nb5 Rf4 Bg4 Bc5 Be3 Ne7 g8R Na6 b8B Bb7 Rc1 a1N c8Q h2 Rh8 Qf2 Bc7 Ba7 Nb8 Bg2 Rd1 Bc5 Rd7 Qd2 Qc1 Qf2 Nc6 Nc2 Bd2 Bd5 Qb7 Rd8 Qc8 Qg1 Nb8 Bg2 Rh5 Na1 Rh7+ Kf8 f7 Nc6+ Kf6 e5 Rd4 e4 Kg6 Ke7 Kg7 e3 f8R e2 Rf6 e1Q Rd7+ Ke8 Qb1 Na5 Rb6 Rf2 f6 Qgf1 Rb7 Bd4 Bg5 Qe4 Be3 Qfd3 Qc1 Rf4 Rg1 Qe6 Be5 Qdf5 Qf1 Qa4 Qf2 Qb4 Rc1 Qee7+ Kh6 Kf8 Nd6 Qf7 Qg1 Qe8 Rdc7 Kg8 f7+ Kf8 Nd7+ Ke7 f8R+ Ke6 Kg7 Kd5 Nb8 Qba4 Rd7 Qb4 Nc4+ Ke4 Rf6 Qee6 Rff7 Qe8 Nd6+
2n3KR/1q4nR/Q1BN4/1rn1b1Rr/P2Bb2P/NRQp3k/2P5/1Bq2q1R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kc4 g5 Kd5 b5 a4 e5 f4 g4 h6 g3 h7 b4 c6 d6 c7 e4 a6 b3 a7 g2 Qe1 b2 Qc3+ Ke7 f6+ Kf7 f5 e3 Na3 b1Q Nf3 g1N Nd2 e2 Ndc4 e1Q Be3 Na6 Bd4 Rb8 a8B Nf3 Bc6 Bb7 c8Q Qde7 h4 Bg7 Rg1 Qec1 Rg5 Nc5 Bg2 Ba8 Qa6 Qeb7 Bh3 Kf8 f7 Ke7 f8R Be5 Re8+ Kf6 Re7 Qf1 Reg7 Qbc1 Rb1 Rf8 Rb3 Rb8 Rg1 Ng5 Rg6+ Kf7 f6 Nge6 R6g5 Ng7 Bg2 Qe7 Bh3 Rb5 Bc8 Qb7 Be6+ Kf8 f7 Ke7 R5g2 Kf6 f8R+ Qf7 Rd8 Qb7 Bf7 Kf5 Rd7 Bg3 Rc7 Kg4 Re7 Kh3 Rc7 Nh6 Be6+ Nhf5 Rd7 Rf8 h8R Rf6 Rc7 Rh6 Bf7 Rh5 Bg8 Qd3 Rf7 Be5 Rg5 Nge6 Rfh7 Neg7 Nd2 Qf3+ Ne4 Ne7+ Kc4 Nc8 Kd5 Nf5 Bf7 Nd3+ Ke6 d5 Nd6 Qff1 Bb6 d4 Bg8 Nce7 Kf7 Nc8+ Kf8 Ng7+ Bf7 Bg3 Kg8 Nc5 Ba7 d3 Bb6 Ne4 Bd4 Be5 Bcd5 Qff4 Rb1 Qd7 Be8 Qff1 Ba2 Qc7 Rb3 Nc5 Bb1 Be4 Bc6 Qb7 Rh1+
1NnKB3/5NNQ/1N1b1B2/r2q1b1P/PQR3n1/rR1rN2k/n1p3qP/7R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 e5 Kc4 c5 Kb5 g5 d4 c4 f4 b6 a4 g4 a6 e4 f6 c3 f7 e3 a7 c2 d6 Ke6 f5+ Kf6 d7 Kg5 f6 Kh4 d5 g3 d6 g2 Nd2 e2 Bb2 e1R Nh3 g1N Ng5 Bb7 Rb1 Qc8 d8R Qg4 d7 Nh6 Nc4 Re3 Qd3 Ne2 Qh7 Ra3 Rc8 Bd6 f8Q Be4 d8N Nd7 f7 Bf5 Kc6 b5 Bf6 b4 Rb3 Nb6 Ne3 Nc3 Bb5 Na2 Nge6+ Kh3 Ng7 Qe2 Qe7 Ng4 f8N Qg2+ Qe4 Rg8 Nd7 Rh8 Nf7 Rd8 Rc7 Nc8 Nb8 Rd7 Kb7 Rd8 Be8 Rd7 Rd3 b3 Kc6 b2 Rb3 b1Q Kb7 Rd8 Rc4 Qd1 Kc6 Bb4 Kc7 Rd3 Qe7 Bd6+ Kd8 Qdf3 Qb7 Qc6 Qb4 Qcd5 Nd7 Rb8 a8N Rb5 Nab6 Ra5 Nb8
1R5N/4r1Q1/4Q2b/q1B1pQRr/PnP2N2/1Q3nnr/2R1PqB1/1QK2b1k b - - 0 1 illegal: No possible last move
1R2k1Br/7q/B3bKN1/bB1p1B1r/1P2RNP1/2n1B2Q/1bn2PN1/q4nQ1 b - - 0 1 illegal: No possible last move
k1bB1N1Q/2rBbb2/3Q1R2/1p2r1B1/2PnnRnK/2B1P2P/1N4qB/q4R2 b - - 0 1 illegal: No proof kernel
1b1N2N1/4r3/NqR1N1P1/r3rq2/1Q1Rn3/BP3Bbb/3P1k1p/1NQK1Rn1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 f4 e5 d6 c5 d7 a5 b3 h5 f6 Kg6 b6 h4 b7 c4 f7 a4 Bh3 c3 Bf1 h3 Rh2 c2 Ba3 c1R Be2 e4 Bc5 e3 Na3 Ra5 Nf3 Nc6 b8N Nf6 Nd4 Rh5 Na6 Bd6 f8Q Qb6 d8N Bb8 Bd6 Ne5 f5+ Kh7 Rh1 Rc7 Rc1 h2 Nb1 a3 Rc6 a2 Qc1 Nf3+ Kd1 a1B Rf1 Ng1 Ba3 Bc3 Qb4 Re7 Rf4 Bb2 Re4 Bg3 Re5 Kg7 Rd5 Ne4 f6+ Kg6 f7+ Be6 f8R Bb8 Nf3 B2e5 Nd4 Bed6 Rf1 Bf5 N4e6 Bg3 Bc4 e2+ Kc2 e1Q Rd4 Rd5 Be2 Qf2 Re1 Ra5 Kd1 Kh7 g6+ Kh6 g7 Qf3 Nf4+ Kg5 g8N Qf1 Nd5 Bc8 Ndc7 Kf4 g5 Bh3 g6 Rhe5 Bc4 Kf3 Be2+ Kg2 Nce6 Qf5 Bf3+ Kf2 Rf1+
1q3k2/N3N3/bBQ1b1Pn/1BB1PrpB/3Bn1b1/Kn3qP1/3R1r2/1RQ3N1 b - - 0 1 illegal: No extended proof kernel
K2Bk2b/b2q3b/2N2Pqr/NP1B1R2/r2n2RQ/PBN3n1/1p5N/qQ5N b - - 0 1 illegal: No proof kernel
1BRq2R1/R1Qb1B2/2r1RP2/Pnb5/b4kPq/R1p1N3/1r4B1/2rNQ1Kn b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 a4 c5 f4 e5 Kf2 h5 g4 b5 g6+ Kf6 d6 h4 d7 h3 a6 e4 a7 h2 a5 b4 d5 c4 g7 b3 d6 b2 Nd2 b1Q Qe1 c3 Nc4 Qb3 Ne3 Qbb6 Ra3 Na6 Bg2 Ne7 g8B Rh6 Nh3 Nc7 Bf7 Rb8 a8R Nb5 Ra7 Qc6 Rf1 h1B Kg1 Qcc7 Nf2 Rb6 Nc4 e3 Nd1 e2 Nce3 Rh2 Rf3 Rc6 Rh3 Qb6 Rh8 Qd4 Rg8 Qe4 Bd2 Qf3 Bc1 Qg3 Bd2 Qh4 Bc1 Qb6 d8R Bd7 Re8 Qd8 Bd2 Ng6 Re4 Ne5 Bc1 Nd3 Bd2 Be8 d7 Bc5 Re7 Nf2 Bc1 Qa8 d8Q Bd7 Qc7 Qd8 Re4 Qe7 Rc8 Qd8 Re5 Kg7 f6+ Kh6 f5 Kg5 Bd2 Kf4 Re6+ Rd6 Bf1 Bhc6 Bg2 Nh1 Bg6 Bd5 f7 Bb3 f8R Bc2 f6 Ba4 Qb6 Rc6 Bf7 Rh3 Rh8 Rf3 Rg8 Rf2 Qf1 e1R Qb7 Re2 Qe1 Rf3 Bc1 Rb2 Bd2 Rf2 Bc1 Rfc2 Qc7+ Bd6 Bd2 Rc1 Qb7 Nf2 Nd5+ Kg3 Bh6 Bf8 N5e3 Bc5 Bf8 Kf4 Be7 Qb6 Bd8 Nh1 Bc7+ Rd6 Bb8 Qd8 Re5 Re6 Qc7 Rc6 Re6+
1qR1RB1r/1N2N1b1/3P3R/1R1KB2B/nrQ1Pp2/4r3/1k2P3/nq1nQbR1 b - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 h5 gxh5 b5 a4 e4 axb5 e3 fxe3 Nd7 e4 Nb8 Kf2 Kd7 Ke3 Kd6 h4 Kc5 d4+ Kb4 b6 f5 d6 g5 b7 a5 d7 c5 d5 a4 h6 a3 h7 c4 h5 a2 h6 c3 d6 c2 Bg2 Kb3 Nd2+ Kb4 Kd4 g4 Nb3 g3 Nh3 Ne7 Na5 Ra7 Nf4 Ka4 b4 Ng6 b5 Ne5 b6 Qe7 d8R Na6 b8R Qb7 Bf3 g2 Nd5 g1R Qe1 Rg3 Ne7 Nd3 Re8 Nac5 Bh5 Nf2 Rh4 Qa8 Nb7 Kb3 Be3 Bd7 Rbc8 c1Q Bf4 Ra5 Be5 f4 Rh1 Ra3 Rb1+ Kc2 Rg1 a1N Rb5 Qb8 Bg7 Rgb3 Be5 Rg8 h8B Bh3 h7 Kb2 Bhg7 Nd1 h8R Bf1 Rh6 Rh8 Na5 Qa8 b7 Na4 b8Q Qb1 Qc7 Rb4+ Qc4 Re3 Nb7 Qb8 Ng8 Be7 Bf8 Bf6 Ne7 Bg7 Kd5+
2k1r1qN/7B/KRP1R1Q1/N1N1n2N/4q1QP/p1br2B1/b2P1n2/1b2qNB1 b - - 0 1 illegal: No proof kernel
r4q2/4QB2/1rPQ1K1k/nBR3R1/bq1BB1Pb/4n3/3P1pqr/1NNBQ3 b - - 0 1 illegal: No proof kernel
1N5k/K5R1/1BP1R2B/BrbB2qP/8/2nnrn2/bNP3rp/1Q2qQBN b - - 0 1 illegal: No proof kernel
6RR/1kq3Bq/P5q1/n1QrRRB1/r1b1Pnb1/Np3R2/NP1Q1K1n/1B6 b - - 0 1 illegal: No possible last move, all moves rejected
2Q2nb1/6r1/P3P1k1/2N3B1/BR2b1P1/2p1rQ1n/KBB1q1Nb/2q1RNBn b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 g4 h5 d4 b5 Kd2 f5 Kc2 Kf7 Kb3 c5 e4 b4 a4 c4+ Ka2 c3 g6+ Kg7 d6 f4 e6 h4 a6 h3 a7 h2 d5 f3 e7 f2 e8B Ne7 a5 Nbc6 a6 Rh7 d7 Ne5 d6 Rh6 Bd3 f1Q Qf3 Nc4 e5 Qe1 e6 Bb7 Bb2 Nb6 Nh3 Nbd5 Nd2 Nf4 Rb1 Qc1 Nf1 Be4 Bc2 Qb8 d8B Qb5 d7 Qe2 Rg1 h1N Bb6 Rh8 d8B b3+ Ka1 Rb8 a8N Rb7 Ba4 Kf6 g7 Kg6 g8Q+ Bg7 Ng5 Nh3 Nc7 Rh5 Qgf8 Be5 Nd5 Bh2 Nde3 Rh6 Ng2 Rh8 Ba3 b2+ Ka2 Rh7 Ba7 Rb5 Be3 Rg7 Bdb6 Rd5 Qc8 Rd3 Bf4 Re3 Ba7 Kf6 B7c5 Bh7 Ne4+ Kg6 Bg5 Bg8 Bb6 Kh7 Bbc5 Ng6 Bd4 Nf8 Nc5+ Rd3 Nfe3 Kg6 Re1 Qcd2 Nf1 Qde3 Rbd1 Qc1 Bg1 b1B+ Ka1 Qe4 Bb2 Re3 Rd4 Qd3 Rb4 Qe4 Bcb3 Qd3 Bd1 Qe2 Bdb3 Bf5+ Ka2 Be4 Bc2
2NRrnb1/1r1R2P1/b3Q1q1/1P2BpQn/1P3Q2/R2Q1B1r/4Q1KN/qk4b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 g4 f5 e4 h5 d4 a5 b4 c5 g6 a4 g7 h4 g5 a3 g6 c4 d6+ Ke6 d7 h3 d5+ Ke7 e6 Kd6 e7 Ke5 e8Q+ Be7 d6 a2 Nd2 Kd4 e5 Kc3 e6 h2 Kg2 Ra6 Qe2 Kc2 Ngf3 c3 Bb2 Qb6 d8R Rh5 d7 Bc5 e7 Nf6 g8Q Rh3 g7 Nh5 Qd5 Ra8 Nc4+ Kb3 Qd4 c2 Nd6 c1R Qg6 Ba6 Qf4 Bg1 e8Q Rc7 Qgg5 Rb7 Nc8 Qg6 Be5 Ka3 Rd1 a1Q Rd4 Kb3 Qe6+ Ka3 Q2c4 Kb2 Be2 Kb1 Rd3 Nc6 Ra3 Ne7 Bd1 Ba7 Re1 Bg1 Re4 Rab8 Qe2 Ra8 Rd4 h1B+ Kf1 Rab8 Nh2 Bd5 Rdd3 Bc4 Kg2 Bb3 Re8 Ba2 d8Q Bc4 Rd7 Bb3 Qeb6 Bg8 Qe6 Qb2 Rc7 Bb6 Nd6 Nc8 Qed2 Qa1 Bf3 Bg1 Qe2 Nb6 Rf7 Nd7 Ref8 Rc7 Re8 Rbb7 Nc8 Nf8 Qdd6 Rd7 Rd8 Re7 Qdd5 Re8 Rfd7 Bf2 Qdd4 Bg1 Qdd3#
2K3b1/1N1r1kp1/1r1B1Q1B/rnb1RP2/1R3BPQ/1B1qn1q1/Q1P4N/n2B4 b - - 0 1 illegal: No possible last move
1NNkBnn1/1QR1p2P/4bq2/1PB1r1Nq/1r1N2N1/4R3/PbQ4Q/4r1nK b - - 0 1 illegal: No proof kernel
Q1QQ4/3Pb1RR/1B2N1q1/KP1bpr2/6r1/Nkr3P1/1nBB4/B1b1Bqn1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kf7 d4 h5 Kd2 a5 Kc3 c5 f4 a4 f6 c4 b6 h4 g3 e6 b5 a3 b7 h3 f5 a2 d6 h2 Kb4 c3 d5 c2 g6+ Ke8 g7 Kf7 Na3 Rh5 Ne2 Be7 Bd2 c1B Nd4 Nd7 b8B Ne5 Bd3 Nc4 Bc2 Qb6 Qg4 Bd7 Bc7 Rc8 Qh3 Qc6 Bb6 Nb2 Ka5 Nh6 Qg4 Be8 d7 e5 d8Q Qe6 d6 Rc3 Qf3 Rh4 Qfa8 Bc6 d7 Qd6 Ne6 Ng4 Rb1 a1Q Bd4 Nd3 Rb4 Bd5 Bb6 Ngf2 Rg4 Nh3 Bd4 Rc7 B4c3 Qb1 Ba1 Ng1 Nf4 Be6 Qdc8 Nb2 Be1 Bd8 Bf2 Rc3+ Bb6 Bd2 Rg6 Qf1 Rg5 Rg4 Rg6 Kg8 f7+ Kh7 f6 Bc1 Rg5+ Qdd3 Rg6 Bd5 Ne6 Qe4 Rg5 Kh6 g8Q Be7 Rg7 Qg6 Nc5 Kg5 Qgd8 Rd3 Ne6+ Kf5 Bb3 Ke4 Bc2 Bc5 f8B Ke3 f7 Kd2 Be7 Kc3 f8B Re3 Bb1 Kb3 Bg5 Rf3 Bfe7 Rf5 Be3 Bd6 B7g5 Be7 Bf2 Rf3 Be1 Rc3 Bd3 Ne2 Rg1 h1R Bgd2 Rh5 Rh1 Rf5 Rhh7 Ng1 Bc2+
3nB1Q1/2PR2QN/KRR1bpq1/1r4r1/3b1kq1/bP3n2/1P3RB1/2BRN2q b - - 0 1 legal: proof: f4 b5 d4 e5 fxe5 h5 g4 c5 dxc5 b4 gxh5 b3 axb3 Qc7 Qd5 Qb6 Qd1 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 Kb5 g5 c4 a5 e4+ Ke6 h4 d5 c6 a4 c5 f6 h6 g4 h5 d4 c7 a3 h7 d3 h6 a2 c6 d2 Nf3 g3 Rh2 g2 Ng5+ Ke7 e6 Kd6 e5+ Kd5 e7 g1B e8R Ne7 e6 Ke5 Na3 Qd7 Rf2 Bb7 c8R Rg8 h8Q Nf5 e7 Nh4 h7 Qf5 Qg7 Nf3 h8R Qg6 Bg2 Kf4 Rh7 Ra5+ Kb6 Rd5 Nc2 Rb5+ Ka7 Ba8 Ne1 Bb7 c7 Bd5 Rb1 Nc6+ Ka6 Bf7 Rb8 Nd8 Rb6 Bc4 Qc2 Be6 Qc3 a1Q+ Qa5 Nc6 Ra8 Nd8 e8B Ba3 Qa4+ Kg3 Qc4 d1Q Rab8 Qd4 Rc6 Qf4 Rbb6 Qg4 Rd2 Be3 Rh2 Bg1 Rd7 Bd4 Nh7 Q4f5 Be3 Qfg4 Rd1 Qab1 Bc1 Qbe4 Bf1 Qd5 Rhd2 Kf4 Bg2 Qdh5 Qb4 Qh1 Qbf8 Rh8 Qfg8 Rg5 Nf8 Rhh5 Nh7 Rb5 Q7f8 Rhd5 Qfg7 Rg5 Rf2+
1K3Nr1/1BP5/Rq1Nkp2/B2b4/R4Prn/bR1P3b/n1NQ1r2/1NNQ2q1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 d5 exd5 g5 hxg5 c4 axb5 c3 bxc3 Nd7 c4 Nb8 c5 Bh3 Qf3 Bf5 Qd1 Bc8 Ke2 Kd7 Kf3 e5 Ke4 a5 c4 h5 g4 a4 f4 h4 d6 f6 Kd5 h3 c6+ Ke8 c7 Kf7 b6 h2 d7 a3 b7 a2 c5 e4 d3 e3 c6 e2 g6+ Ke7 g5 e1R g7 Nh6 g8Q Re6 g6 Ra7 g7 Rh7 Bg2 Na6 b8R Ra8 Bd2 Nf7 Ne2 Rh8 Nc1 Ra7 Rb3 Rb7 Ba5 Qe8 d8N Re2 Ne6 Ne5 Nd4 Ng6 Nc2 Bh3 Qd2 Qb8 c8N+ Ke8 Bf3 Nh4 Nd6+ Ke7 c7 Rb5+ Kc6 Rf2 Qh7 Rg5 g8N+ Ke6 Qh5 Rg4 Ne7 Rhg8 Ng6 Qb4 Rf1 h1B Bg2 Qc5+ Kb7 Nb4 Kb8 Qb6+ Bb7 Bc6 Ra3 Bd5 Ra4 Rgg2 Qhd1 Rg1 Nc3 Rg4 Rb1 a1Q Rb3 Na2 Nb1 Qad4 Re1+ Kd7 Re4 Qe3 Rec4 Ke6 Rc5 Qg3 Rc6 Qg1 Qb4 Qe3 Ra6 Qb6 Qbd2 Rg7 Nc8 Ba3 Nd6 Rg8+ Nf8+
4NQ1K/2Pq4/N2b1p2/3NPRnQ/2n5/B1P1Bqkr/r1N1B1qN/3R1b1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kf3 Ke6 Ke4 a5 b4 g5 h4 g4 b6 g3 c3 f6 c6 d6 c7 g2 b5 a4 h6 a3 h7 a2 b7 Qe8 h5 Qf7 b6 Ra7 h6 Qh5 Na3 Be7 Nf3 g1N Nc2 Nd7 b8B Ra5 b7 Qg5 Ba7 Nh3 b8N Nb6 Na6 Nc4 Bae3 Qg2 Ba3 Nf2+ Kf4 d5 Rh5 d4 Rf5 d3 Nh2 d2 Rc1 Kf7 e6+ Kg6 Ra1 Bf8 e7 Nh1 e8N Bd7 Rc1 a1Q Rb1 Bb5 Rc1 Qg5+ Ke4 Kh5 Kd5 Kh4 Ke6 Kg3 Kf7 Bd6 Rb1 Qh5+ Kg7 Ne7 Rc1 Ng6 Rb1 Rf8 h8N Qb2 h7 Nh4 Ng6 Nf3 h8Q Ng5 Nf4 Qf3 Nd5 Rf7+ Kg8 Rh7 Qg7 Rh3 Qf8 Kh4 Kh8 Qa2 Qc1 d1Q Qb2 Qd3 Rd1 Ra4 Qb4 Kg3+ Qh6 Qd4 Qh5 Qb2 Bg1 Qd2 e4 Qdg2 e5 Qc1 Rd4 Qcd2 Be3 Ra5 Be2 Qd1 Bb2 Ra2 Ba3 Qd3 Rff4 Qf5 Rd1 Qd7 Rf5 Nb2 Re1 Bc5 Bd1 Bf1 Be2 Nc4 Rd1 Bf8 Qb6 Bb4 Qd6 Bc5 Qe7 Bd6 Qf8
B1nQ3K/Pn2q2Q/PB3N1q/B7/4P2B/3Nbr2/1krB1rpq/1bRR2R1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 f5 Kf4 b5 d4 c5 h4 b4 a4 g6 h6 b3 e6+ Kd6 h7 c4 e7 c3 Kg5 b2 h5 c2 h6 f4 a6 f3 a5 f2 a7 Bg7 a6 Be6 Nf3 Nf6 e8R Bf8 Ne1 Qc7 Bd2 c1Q Bg2 f1R Nc3 b1Q Nd3 Qbb7 Rc8 Ng8 Rg1 Nd7 e3 Rf3 Ne4+ Ke7 Nf6 Kd6 Rb1 Ne7 Ba5 Rg8 h8B Bf5 h7 Nc5 Qd2 Rg7 Kh6 g5 Qc2 Qd2 Rbd1 Rf7+ Bg7 g4 h8B g3 Qb1 Bd7 Kh7 Qcb6 Rc7 Nc8 Kg8 Bh3 Bh6 Bf5 B8g7 Qc2 Kh8 Be4 Bh1 Qh2 Bg2 Bh7 Bg5 Rb8 Bh4 Rf2 Be4 g2 Bh6 Q6c6 B6g5 Bh6 Bf3 Qb4 Qc2 Qcb6 Qb1 Nb7 Rcc1 Rc7 Be4 Rcc2 Bf3 Ke7 d6+ Ke6 d7 Qe7 d8B Bf5 d5+ Kd6 Nb2 Kc5 Nd3+ Kc4 d6 Qc6 Bab6 Kc3 d7 Ra8 Bdc7 Qcd6 d8Q Bh7 Bf4 Bg5 Nh5 Qh6 Nf6 Rb8 Qa2 Ra8 Qf7 Bg6+ Qh7 Kb3 Ne1 Kb2 Bd5 Bd3 e4 Rb8 Bd2 Be3 Bda5 Rf3 Bf4 Rcf2 Bc6 Bb1 Bd5 Ncd6 Bfg5 Rc8 Bf4 Rcc2 Nd3+ Ka1 Bfg5 Nc8 Bc6 Nbd6 Ba8 Nb7 Ne1 Kb2 Bf4 Bc5 Bfd2 Be3 Nd3+
1RQq1bN1/P4rPK/8/2n3P1/R2k1B2/Nr2rB2/bQBpbR2/q1B2n1B b - - 0 1 illegal: No possible last move
2b5/P2PQq1B/1Q1b2nB/1B1b3K/1nq1P2R/pNn1B2N/R7/1rBrk2N b - - 0 1 illegal: No proof kernel
1N1BQ2Q/1RBB1r2/1n1B1r2/n1NPB3/n4R1n/1RP2PKb/3qk1p1/2bn4 b - - 0 1 illegal: No proof kernel
Q5r1/PQ3n2/2nbKNb1/4P2r/n6n/P1Q1pRRn/NqR1Q3/Bk3BQ1 b - - 0 1 illegal: No proof kernel
3K1R2/p1BNNP1b/Q2P2b1/1Q1Q1b2/bPnr3B/2bBr3/Q3QR1n/1q2k3 b - - 0 1 illegal: No proof kernel
1rn1Nr1Q/1B3q1b/3Rb1b1/R1b1B2P/1k2RNPr/Rn2pP2/4Q1RN/1K6 b - - 0 1 illegal: No proof kernel
2QB4/K4n2/3B4/2Nb1bkp/3PrN1q/BBBRb3/1bPr2PR/1Q2rNn1 b - - 0 1 illegal: No proof kernel
6N1/qQ1R4/Brr2n2/R1r1NpB1/P1B2P2/bk3PBb/nrN1KB1Q/6b1 b - - 0 1 legal: proof: c4 a5 f4 h5 b4 d5 bxa5 h4 cxd5 h3 gxh3 Qd6 h4 Qa3 h5 Qf3 exf3 Kd7 Ne2 Kd8 Ng1 Ke8 d4 Kd7 h4 Kd6 a6 b5 h6 g5 a7 f5 h7 e5 h5 c5 h6 c4 Nc3 e4 Be3 g4 Qb3 g3 Ke2 b4 Bf2 e3 Ne4+ Ke7 d6+ Ke6 d7 Kd5 d8B g2 a3 Nc6 Bg5 Rb8 a8B Rb6 Bb7 Nf6 Ba6 Be6 Qb1 c3 Rh3 Rg8 h8N c2 h7 c1R Nf7 b3 h8Q b2 Rh7 Rc5 Ne5 Nb4 Rd7+ Bd6 Ra2 Rgc8 Qh2 R8c6 Bgh4 Bf7 Bhg3 Bh5 Ra1 Bg4 Ra2 Ne8 Ra1 Na2 Nf6+ Ke6 Ng8 Bh3 Qe4 Nf6 Qb1 Rc7 Qe4 b1R Qb7 Be7 a4 R1b5 Rc1 R7c6 Rc4 Rb1 Rb4 Bd6 Rb5 Kd5 Ra5 R1b5 Ng6 Kc4 d5 Be7 d6 Kb3 Ne5 Bf8 Rg7 Rb4 d7 Be7 d8B Bf8 Ke1 e2 Rd7 Be7 Kd2 e1Q+ Kd3 Qa1 Ne2 g1B Kd2 Qc3+ Kd1 Qe3 Nd4+ Kc3 Bfd3 Rb2 Nc2 Kb3 Bf1 Rc3 Bfb5 Ba3 Be7 Qd4+ Ke2 R3c5 Bd3 Nd5 Bg5 Nf6 Re7 Qd7 Bdb5 Qc7 Rd7 Qb8 Bd3 Qa7 Bdc4+
3r1B2/kn2b2N/1R1R2nP/qPQ2P2/p3b3/rBn2Q1B/2QK1Q1N/nQ5b b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 c4 g5 f4 d5 b4 Kd7 h4 Kc7 c6 Kb6 h6 a5 c7 e5 h7 a4 f6 g4 f5 d4 h5 g3 h6 d3 f7 e4 c5+ Ka7 c6 e3 b6+ Ka6 b7 e2 Nf3 g2 Nc3 g1N Ba3 Ka7 Kd2 e1N Nh2 Qh4 Bh3 Qd4 Qf3 Nc2 Nd5 Ne7 Rb1 Qb6 Nf6 Ne2 Rhd1 Rg8 h8Q Ng6 Nh7 Qa5 Qb2 Be7 f8Q Na1 Qa2 Be6 c8Q Nc3 c7 Bd5 Qc2 Nd7 Qcd8 Bf7 c8B Nc5 Qd4 Bd5 Be6 Rd8 Qdf2 Be4 Bb3 Rg7 Ke3 d2 b8Q+ Ka6 Qb5+ Ka7 Rb2 Nb7 Qbd3 Rd4 Qb1 Rg8 Qdc2 Rd6 Qc8 Rgd8 Qc5+ Rb6 Re1 d1B Rg1 Be2 Rd1 Bc4 Rd6 Bcd5 Kd2 Ka8 Rf6 Rbd6 b5 R6d7 Rb6 Ka7 Qa2 Rd6 Rb1 R6d7 Rd1 Rd6 Qab1 Bc6+ Kc1 Rd3 Rd2 Re3 Rd6 Bcd5 Kd2 Bc6 Qh5 Bh1 Qg4 Bce4 Qgf3 Rf8 Be6 Na2+ Qcb4 Bg5 Rd7 Rd8 Qbc3 Bh4 Bf8 Be7 Qcb4 Ra3 Rdd6 Nc3 Qbc5 Bh4 Bd5 Be7 Bb3
1RbnB3/4N3/Q2qrNPQ/8/1pK1R1bb/2QPQn1k/1P1b1r1B/4nR1Q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 b4 c4 Qd7 cxd5 Qb5 axb5 Bd7 Qa4 Be6 Qd1 Bc8 Ke2 Kf7 Kd3 c5 f4 h5 g4 a5 g6+ Kf6 g7 e5 d6 e4+ Kc4 a4 b6 a3 b7 e3 d7 h4 d8Q+ Be7 g5+ Kf7 g6+ Kf6 Nc3 e2 Qe8 e1N Nh3 a2 Nf2 Nd7 b8R Bd8 Qe3 Ne7 g8Q h3 d3 h2 Bh3 Rh7 Rf1 h1B Qh8+ Rg7 Qa4 Bf3 Qa6+ Nc6 Bd2 Bg4 Nfe4+ Ke7 f6+ Ke6 f7 Kf5 f8Q+ Rf7 Qhh6 Bh4 Qfg7 Nd8 Nd5 Re7 Rc1 a1Q Qc3 Re6 Nef6 Qa4 Rc2 Qc6 Bc1 Qd6 Re2 Nf8 Bg2 Nh7 Qh5+ Ng5 Qh8 Bg3 Qh1 Bh4 Bd2 Ngf3 Bh3 Ng2 Be1 Ra7 Bg3 Nge1 Bh2 Rf7 Ng8 Rh7 Ndf6 Rf7 Bg2 Nd4 Bc6 Ndf3 Be8 Rf8 Qeg1 Rf7 Re4 Rf8 Kb5 c4 Qe3 Rf7 Qca3 c3 Kc4 c2 Qc3 c1B Nd5 Bh3 Nge7+ Kg4 f5+ Qf4 f6 Bd2 Bg1 Rf8 f7 Kg3 Nf6 Bg4 Bh2+ Kh3 Qf2 Qd6 Qfa7 Rh8 f8Q Rh5 Qh6 Rhe5 Rd4 Re2 Re4 Rf2 Qae3
3r3N/3knN1B/2bB1PbB/nr3Pb1/2N3KR/1n3QN1/P3Np2/2bq1QR1 b - - 0 1 illegal: No proof kernel
1r1rkR2/3n2B1/1NN1p1nR/Q5nb/1KQ1Pq2/5rPB/Pb2NR1R/2R2n2 b - - 0 1 legal: proof: c4 g5 b4 d5 cxd5 h5 Qc2 a5 bxa5 h4 Qd1 h3 gxh3 g4 Bb2 g3 fxg3 Rh4 Bc1 Rh8 d4 c5 Kd2 b5 Kc3 f5 e4 e6 d6 c4 d7+ Ke7 d5 f4 d6+ Kf7 h4 f3 h5 f2 h4 Bh6 a6 Bf4 a7 Be3 h6 Nf6 h7 Nh5 Qd5 Qf6+ Kb4 c3 d8R c2 d7 Nf4 h5 Ng6 h6 Ba6 Bb2 c1R Rh2 Qf4 Qc4 Bd4 Ne2 Rc3 Nd2 Rf3 Bh3 f1N Rc1 Re8 Ba1 Bb2 h8R Rf8 Rc8 Rd8 h7 Ke7 Rf2 Kf7 Kc5 b4 Nb3 Ke7 Nbd4 b3 Kb4 Bb5 Qc7 Bd3 Qc4 Bc2 Rf8 Bd1 h8R Rc3 Ng1 Bh5 Nge2 Rf3 Rh6 Nc6+ Ka4 Rb8 a8N Nce5 Nc6+ Kd6 Rh2 Ba3 Ne7 Re3 Bb2 Re8 d8Q+ Nd7 Rc2 Rd3 Qa5 Rd8 Nc1 Re3 Bg7 b2 Qb3 b1N Qbb5 Bb2 Kb4 Nbd2 Nb6 Nf3 Rcf2 Ng5 Ne2 Rf3 Rc5 Qf7 Nc6 Qf4 Na7 Ke7 Rc1 Qe5 Qc4 Qf4 Rf6 Ke8 Nc6 Qc7 Rf5 Qf4 Rf8+
K1BB2n1/1N6/N3pnQN/4B1kP/b2Q4/RnNr1PP1/q1Nb1b2/1R1rn3 b - - 0 1 illegal: No proof kernel
2kNq3/b1Nn1QQ1/3P1Q1r/4R1Pr/P2pb1K1/QbrBQ1R1/1n1BN3/7b b - - 0 1 illegal: No proof kernel
2b4R/4K2n/1r1P3b/1RP2RQB/N1b2Nbq/kn1nP1r1/3B3p/3QBBB1 b - - 0 1 illegal: No proof kernel
1Q3rr1/k1nBbb2/BpP3BQ/P1q4N/1bNPr3/B6N/R2b4/2BKRn2 b - - 0 1 illegal: No proof kernel
1N5r/K2nBr2/P2P2n1/rBN2b2/R1Bb1r1n/p1R3Q1/1P6/k2BQqQB b - - 0 1 illegal: No proof kernel
1n1r1n2/2N1nK1P/bBPR3N/5B1P/3k1p1R/1Qr2QQr/Q6b/Q1q3nN b - - 0 1 illegal: No possible last move
2nb4/N1n2KP1/3N2N1/1N1r1QRN/rkQq1pbr/1P6/3B2P1/1nBB1Rr1 b - - 0 1 illegal: No possible last move
RQ2r1Q1/3n1QP1/1qr3kP/P1Bbb3/B3n2n/n1N1K1p1/1b1Q1N2/1R2RQ2 b - - 0 1 illegal: No proof kernel
1nNbBr2/3PPQ1q/RP5b/4BB2/r6r/1bNpB2k/R7/KQ1Nr1nB b - - 0 1 illegal: No proof kernel
1B1b4/2Pp1Q2/1NP1QR2/r1b1n2B/r2R4/2kP1r1b/2n1NNRK/1Rq2rR1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 b3 axb3 Qb6 b4 Qc7 b5 Qd8 c4 Kf7 f4 Kf6 Kf2 e5 Kg3 a5 h4 g5 h6 g4 c6 a4 h5 e4 b6 a3 d3 a2 c7 e3 b7 e2 c5 e1R h7 Ra6 h6 Re8 Rh2 Qe7 Nd2 Ra3 Nc4 Nc6 b8R Qe5 Nb6 Ra6 Rg2 Qe4 Be2 Qe7 Nh3 Qe3+ Kh2 Ra8 Qb3 Nge7 Nf2 Ng6 Bd2 Ra3 Rag1 a1B Rb7 Rg8 h8R Re5 h7 Ra4 Qc4 Nd4 Qe6+ Kg7 Bb4 Nc2 c6 Rea5 Bc5 Ne5 f6+ Kg6 Bf3 Qc1 f7+ Kg7 Bd4 Bc5 f5 Rf8 f6+ Kg6 Rb8 Ba6 Be3 Bc4 Be2 Rd8 f8Q Bd5 Qfe7 Rf8 f7+ Kg7 Rb7 Bc3 Qe8 Bd2 Bd4 Bg5 Rb8 Bd8 Bd1 Rg8 f8R Bf3 Rf4 Rf8 Rf6 Be2 Be3 Bf1 Qh5 Rf7 Re8 Rf8 h8N Rf7 Ng6 g3+ Kh1 Rf8 Nf4 Rf7 Ne2 Rf8 Rh2 Bh3 Rhg2 Rf7 Rf4 Rf5 Rd4 Rf3 Rf8 Nf7 Qeg4+ Kf6 Qh7 Ke5 Qhg6 Nd6 Rf6 Nc4 Qf7 Bb4 Nd5 Ra8 Rdf4 Qb2 Re1 Ra3 Rh2 Qc1 Ng1 R8a5 Ba7+ Re3 Rf1 Bbe7 Rb1 R3a4 Nb6 Bd6 Bf3 Bc5 Ne2 g2+ Kg1 Qd1 Bb8 Qc1 Be4 Rg3 Bg6 Rf3 Bh5 Qe3 Rh1 Qc1 Kh2 g1R Nd1 Ra2 Rf2 R2a4 Rg2 Rgf1 Nf2 N4e3 Rfb4 Nc4 Nf4 Kd4 Rhg1 Kc3 Qge6 Ne5 Rc4+ Kd2 Rd4 Kc3 Ne2+
1bknN1rN/2pP2Q1/r1B3RP/1BBnQ3/1q5R/rb6/QK4Pb/2B3Br b - - 0 1 illegal: No possible last move, all moves rejected
7K/1R5b/1qNBkB2/qB6/BN3pB1/R1Q1PPbn/1Q1Pr1q1/1n2qrQ1 b - - 0 1 legal: proof: c4 b5 h4 d5 cxd5 g5 hxg5 e6 dxe6 Nh6 a4 Ng8 axb5 Bg7 Qa4 Bh6 Qd1 Bf8 g4 Ke7 b4 h5 f3 f5 Kf2 c5 Ke3 a5 Kf4 c4 Ke5 a4 g6 h4 b6 f4 b5 c3 b7 c2 g5 a3 g7 a2 b6 h3 g6 h2 e3 Rh3 Na3 Rh6 Bb2 c1Q Nc2 Ra3 Bb5 Rd3 Ne2 Bd7 Nb4 Ra3 Nd4 Nf6 g8Q Nd5 g7 Na6 b8Q Nc5 b7 Ne4 Qc2 Qb6 Qc3 Qe1 Kf5 Rh5+ Kg6 Nf2 Qe5 Ra8 b8B Nh3 Rf1 Rg5+ Kh7 h1Q Kh8 Qg2 Rb1 a1Q Bd6+ Kd8 Rh1 Qaa5 e7+ Ke8 Ndc6 Bf5 Ra1 Kd7 Ra3 Bh7 Ba1 Rb8 Qb2 Nc3 e8B+ Kc8 Qc5 Be7 Bh5+ Kd7 Qe5 Nb1 Qec3 Rg6 Ba4 Bh4 Rg1 Qgf2 Rg5 Qg2 Rb5 Qd8 Rb6 Bg3 Rb7+ Qdc7 Qd8+ Ke6 g8B+ Kf5 Bd5 Qcb6 Bc4 Ra8 Bcb5 Ke6 Qf8 Rc8 Na7 Rc4 Qfg7 Rg4 Nac6 Rc5 Qd3 Rc1 Qdc3 Bf2 Nc2 Qgh1 Qd3 Qeg1 Qbd4 Rg2 N2b4 Qd1 Qf1 Bg3 Qg1 Re2 Qd3 Qg2 Qc2 Bg6 Bd4 Bh7 Qb2 Qdf1 Bc3 Qff2 Qd4 Qff1 Qc5 Qff2 Bf6 Rf1 Qcc3 Qe1 Bg4+
N2nB3/B2qr3/1q2QKNb/B3Qn2/1P1B4/1R2rR1P/2r1bp1P/r1kR3B b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 f4 h4 fxe5 h3 gxh3 Qd6 Qb3 Qf6 Qd1 Qd8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 g5 d4 g4 b4 g3 e4 f6 d6 g2 b6 Kc6+ e6 a4 e5 Kd5 d7 c4 b7 a3 e7 a2 e8Q c3 e6 c2 e7 Ra4 Qe2 Na6 b8B Bh6 Nd2 Nc5 Ba7 Rh7 Ngf3 g1Q Nc4 Rg7 Be3 c1R Nh4 Ne6 Ng6 Rc2 Rb1 a1R Rb3 R4a3 Qh5 Qb6 d8B Ba6 Qg5 Qb5 Ba5 Qd7 Qc8 Rh7 e8B Re7 Qf4 Qf2 Bd3 Bb5 Rf1 Qg1 Rf3 Ba6 Qg5 Nd8+ Kf4+ f5 Be4+ Ke6 Nb6 Be2 Na8 Qf2 Bd3 Kd5 Bb5 Qg1 Bc6+ Kc4 d5 Qf2 d6 Qg1 Rb2 Kd3 Bed4+ Kd2 Rbb3 Kc1 Qa6 Qf2 Qc4 Qg1 Qe6 Qf2 Ke5+ f4 Qf6 Qg1 Kf5 Qe3 Qe5 Qf2 Rg3 f3 Bb7 Qg1 Bc6 f2 Bh1 Qg2 Rge3 Qgb7 Rec3 Qb6 Rf3 Bf8 Kg5 Nh6 Kf6 Nf5 Nh4 Qdb7 d7 Bh6 Ng6 Q7c6 Rb2 Re3 Rb3 Nb7 d8R Qd7 Rc8 Nd8 Rcc3 Nh4 Rd3 Nf5 Rd1+
1b5b/3n1R2/2b1B3/1NN2K2/PPNkr1P1/3prQN1/RB5q/n1N1bqRQ b - - 0 1 illegal: No proof kernel
KQB1k1b1/8/2n2BR1/3NQ2r/PPBN1p1Q/2n2R2/qrq2Pnn/1Q3b1Q b - - 0 1 legal: proof: g4 b5 d4 a5 b4 e5 bxa5 h5 gxh5 b4 dxe5 b3 c3 Bb4 cxb4 Ba6 Qd2 Bb7 Qd1 Bc8 Kd2 c5 Kc3 d5 e4 g5 a4 f5 h4 d4+ Kc4 d3 Kb5 d2 h6 b2 a6 c4 a7 f4 h7 g4 e6 g3 e5 g2 h5 c3 e7 c2 h6 Bf5 Ne2 g1Q Nd4 Kd7 e8Q+ Kc8 e6 Qg6 e7 Bh3 Nc3 b1B Bb2 c1N Rg1 Ba2 Nd5 Nc6 Ka6 Nf6 Bc4 Qc2 Rg6 Ne2 Qb1 d1N Qg8 Kd7 Kb7 Bb3 Ra3 Rc8 a8Q Ng4 Qa5 Ba2 Rf3 Bf1 Qa8 Qf8 e8B+ Kd8 Qg7 Nh2 Qe5 Qf7+ Bd7 Ne3 Qab8 Nc3 Ka8 Ng2 Be6 Ke8 Ba1 Rf8 h8Q Qg8 h7 Rf5 Qhf6 Rh5 h8Q Bb3 Qeg5 Rd8 Bc8 Rd7 Qgf5 Re7 Qh4 Re2 Qfh3 Rd2 Q8f6 Qe6 Qg7 Qe2 Qgc7 Qa2 Qa5 Rb2 Qab5 Qc2 Qc5 Ng4 Qh1 Nh2 Qa5 Ne3 Qac7 Ng2 Qe5+ Kf7 Qef6+ Ke8 Nb6 Rh7 Nb5 Ne4 Be2 Bg8 Bc4 Rb3 Nd5 Rh5 Be5 Nc3 Nd4 Rb2 Qfd6 Rh7 Bf6 Rh5 Qe5+
KB1r1r2/2q2kB1/1R1rn3/1QR2PQ1/B1PbPB1r/2Qb4/2Np2B1/1nNq4 b - - 0 1 illegal: No proof kernel
1r1nrR2/q1n1B1b1/5P1P/3QB3/1B5q/3qkp1B/N1Q1QqP1/KRB3Nb b - - 0 1 illegal: No possible last move
7n/B1r1n1qR/1k1Np1NP/2RP1b2/K7/6rQ/1bQBPR1n/1BRqRn2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 b4 Kd7 d4 c5 Kd2 Kc7 Kc3 f5 Kb3 a5 h4 f4 b6+ Kb7 h6 c4+ Ka4 f3 h7 e6 h5 f2 b5 c3 g6 c2 g7 Ra6 h6 Bd6 Bh3 f1Q Nc3 Qdf8 Bf5 Nc6 Bd2 c1N Qc2 Nce7 Nh3 Ba3 d6 Ng6 d7 Nd3 d8R Ra7 d5 Qd1 Nf4 Bb2 Re1 N8e7 g8R Nde5 Ne4 Qg7 Rc1 Nf3 Rgf8 Rg8 h8R Nh2 Rh7 Nh8 Ng6 Bd7 Rc8 Be8 Rc5 Bf7 Kb3 a4+ Kb4 a3 Kb3 Be8 Nd6+ Ka8 Bd3 a2 Rf2 Rc7 b7+ Ka7 Ka4 a1N Bf5 Kb6 b8Q+ Rb7 Qc8 Rc7 Qb3 Bf7 Bb1 Nc2 Qd3 Ne3+ Qc2 Nf3 Qf8 Be8 Qf5 Nh2 Qh3 Nef1 Be3 Bf7 Bd2 Ka7 b6+ Ka6 b7 Kb6 Ne5 Bg6 b8B Bf5 Ng6 Qf7 Nf4 Rg3 Ng6 Qg7 Ba7+
5BB1/2N1r1P1/Nq1n3Q/5PR1/R1pN2b1/Bn2Bbb1/1P2r1B1/2bkqQ1K b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 f4 Kd6 Kf2 c5 g4 h5 Kg2 a5 g6 e5 b6 c4 b7 e4 g5 e3 f6 h4 g7 e2 f7 e1B g6 a4 Nc3 a3 Nf3 a2 Be3 Ra7 Rg1 h3+ Kh1 h2 Bg2 Na6 b8N Nf6 g8B Bg3 Qf1 Nc5 Na6 Bg4 f5 Bh6 f8B+ Re7 g7 Ne8 Nb5+ Kd7 d6 Kc6 d7 Qb6 d8Q Nb3 Bh7 Nd6 Bg8 Bg5 Qb8 Rh6 Nbc7 Rhe6 Qc8 Re4 Qe6 B5f4 Rd1 a1Q Qh6 Bg5 Rd3 Qe1 Rd1 R4e5 Ra1 R5e6 Ra4 Re5 Ne6 Kd5 Nec7+ Ke4 d5 B5f4 Bc5 Bg5 Ba3 Ke3 Nd4 Kd2 Qg6 Re2 Qh6 Nb5 d6 Kd1 d7 Nd6 d8B Bc1 B2d5 R7e5 Bg5 Re7 Be3 Bf2 Kg2 h1B+ Kh2 Bhf3 Rg3 Bh5 Rg5 Bg3+ Kg1 Bfg4 Bg2 Bf3 Kh1 Bhg4 Qh4 Bh2 Qh7 Bg3 Qh6
6Br/2R1pPR1/r1q1N3/1b1kBPKB/r6n/r1Q2Qb1/3R1PB1/1N2q1Bn b - - 0 1 illegal: No possible last move
4rRNr/3pb2B/n1qR1Q2/3P1KB1/qR3PB1/1q1kB3/3P2q1/BQ1nb1N1 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 b4 hxg5 b3 axb3 Na6 b4 Bb7 b5 Bd5 cxd5 Nb8 Ke2 Kf7 Kf3 e5 Ke4 h5 g4 c5 b4 a5 b6 h4 b5 c4 b7 c3 f6 Kg6 b6 a4 f7 h3 Be2 a3 Bb2 c2 Nc3 c1Q Rb1 h2 Ba1 a2 Rb4 Bc5 f8R Nc6 b8B Qf6 b7 Nge7 Ba7 Bb6 b8B Bd8 Be3 Qb2 Qb1 Qb3 f4 Nf5 Bc7 Be7 Bd8 Nb8 Bd1 Kg7 g6 Na6 g5 Qc6 Bg4 Rb8 Na4 Rc8 Nb6 Ra8 Nc8 Rb8 Bad4 a1Q Bb2 Qaa4 Ba1 Bd6 Ne7 Rc8 Bc5 Ne3 Ng8 Nd1 Be3 Be7 Kf5 Ra8 Rf6 e4 Rd6+ Kf8 g7+ Kf7 Nf6 Rc8 g8B+ Kg7 g6 Ra8 Bf2 e3 Bh7 e2 Be3 Kh6 g7 e1B g8Q Rc8 Bc7 Re8 Qe6 Kg7 Bd8 Kh6 Nf3 Kg7 Rg1 h1Q Qe5 Qh2 Rh1 Qf2 Ng1 Qg2 Rh6 Kf7 Rg6 Qb6 Rg8 Qbc6 Rf8+ Kg7 Bh3 Kh6 Ng8+ Kh5 Qg7 Kh4 Qf6+ Kg3 Ne2+ Kf3 Ba7 Qc5 Ng1+ Kf2 Bab6 Kf1 Bg4 Qcc6 Nf3 Ke2 Bg1 Qa5 Be3 Qaa4 Ng1+ Kf1 Qf7 Bf6 Nf3 Ke2 Qe6 Be5 Bg5 Bf6 Qf7 Bd8 Qf6 Be7 Qbb2 Kd3 Ng1 Qcb5 Qa2 Qc6 Qb1+
2Br1NQ1/PpN1Q1nR/3R1Bnq/1b3rPQ/b1k3bN/1bN5/1P2N2q/4K3 b - - 0 1 illegal: No proof kernel
4b3/pQ1Q2N1/1BN3n1/PKR1r3/BQ1QbP1q/2b1kr1R/Qb4P1/1B1qn3 b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 g5 c4 g4 cxd5 g3 hxg3 Nd7 g4 Nb8 g5 Bd7 Ne2 Be6 Ng1 Bc8 Ke2 Kd7 Kd3 b5 a4 e5 f4 h5 a5 h4 f6 h3 f7 b4 Kc4 b3 d4 h2 g6 b2 g7 e4 d6 Ke6 d7 Kf5 d5 e3 c6 Ke4 d6 e2 c7 e1B Qf3+ Kf5 Ne2 Qg5 d8Q Bb4 d7 Nf6 g8Q Bbd6 Na3 b1B Nc2 Nc6 Kb5 Bg7 f8Q Qh4 Qa2 Ba3 Nb4 Bb2 Be3 Ne5 Bb6 Nd3 Nc6 Ne1 Qb4 Be4 Rc1 Nd5 Rc5 Bgc3 Qe7 Re8 d8Q Bd7 c8B Rb8 Qe3 Rb7 Qed4 Rb8 Qeg7 Re5 Ba6 Be8 Qb7 Ne7 Ng3+ Kg4 Qdc7 Ng6 Nh5 Kf5 Bd3 Rd8 Bb1 Rd6 Rf1 h1Q Rf3 Qf1+ Rd3 Qf3 Qe7 Qd1 Rh3 Rdd5 Qd2 Rd3 Ng7+ Kg4 Qef7 Re3 Qdd4 Rf3 Rh2 Kg3 Qfd7 Re3 Rh3+ Kf2 Kc4 Ke2 Bb5 Rd3 Ba4 Rf3 Q4d6 Kf2 Kb5 Ke3 Qdd4+
6Bk/bK2Q2P/1b1qn2P/RB1Brp2/1NrN4/1b1q1P1B/1q1QR3/B1r1N3 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 c5 g4 h5 gxh5 Nc6 d4 Nb4 dxc5 d4 Qg4 Rh6 Qd1 Nd5 exd5 Rh8 Kd2 g5 Kd3 b5 Ke4 e5 c4 g4 h4 g3 a4 f6 c6 Kf7 a6 Kg7 d6 g2 Kd5 d3 c5 d2 f3 e4 a7 b4 h6+ Kh7 c7 b3 Kc6 e3 d7 e2 a5 e1Q h5 b2 a6 Qf2 Ne2 g1B Rh2 Qe8 Na3 b1Q Nc2 Qf7 d8Q Qb2 Ra5 Qfb3 Ne1 Qfd4 Qe7+ Bg7 Rf2 Qdc3 Nd4 Bh2 Re2 Be6 c8N Bg1 Nb6 Qbb4 Nd5 Re8 a8B Qd3 a7 f5 Bh3 Qb8 Nb4 Qd6+ Kb7 Bb3 c6 Nf6 c7 Nd5 c8B Nc7 Bd7 Ne6 Bb5 Be3 Qc2 d1R Qc3 Rhg8 Qd2 Kh8 h7 Rc8 h6 Rc4 Qc2 Re8 Qd2 Qbc3 Bb2 Rc1 Ba1 Qb2 Ndc2 Bb6 Nd4 Qbb1 Ka6 Qa2 Bd5 Qb2 a8B Bf6 Bac6 Bg5 Bd7 Be3 Kb7 Ba7 Ndc6 Beb6 Nd4 Rd8 Be8 Rdc8 Bf7 R8c5 Bdc6 Rd5 Bg8 Re5 Bd5
2n1r2N/b4R1K/bN1NqPB1/pN6/n2Q2PR/5b2/P1R1nqQN/k1q3B1 b - - 0 1 legal: proof: g4 c5 d4 b5 b4 a5 bxc5 e5 dxe5 f5 h3 g5 gxf5 g4 Bb2 g3 Bc1 Ra6 Be3 Rg6 Bc1 Rg4 hxg4 Qc7 Kd2 Qb6 Ke1 Qd8 Kd2 Ke7 Ke3 h5 Kf4 d5 Kg5 g2 Kg6 d4 e4 b4 f4 h4 c4 d3 f6+ Ke6 f5+ Kd7 c6+ Kc7 f7 Kb6 c7 Kc5 e6 Kd4 e7 d2 e8Q h3 c5 b3 e5 h2 c6 b2 e6 Rh7 e7 Bd7 c8N Rh8 c7 Bb5 Qc6 Qe8 Nb6 Na6 c8R Nc5 Bd3 Na4 Na3 b1N f6 Bh6 Rc7 Nbc3 Rb7 Qc8 f8N Ba6 e8N Qe6 Nd6 Ne2 Rf7 Be3 Qa8 Kc3 Nf3 g1Q Nab5+ Kb4 Bb2 Qf2 Rc1 Ne7+ Kg7 Bc5 Ng6 Re8 Rc2 Nc8 Kh7 Bd4 Qg1 d1Q Nh8 Qc1 Bg6 Bc5 Qd5 Be3 Qg2 Bd4 Rd1 h1B Nh2 Be3 Rd3 Bc5 Rh3 Bd4 Qg1 Bf3 Rh4 Be3 Qg2 Bc5 Nd7 Bb6 Bd4 Ba7 Nc7 Ka3 Nb6 Qg3 Bg1 Qf2 Rc4 Kb2 Rc2+ Kb1 Ncb5 Ka1 Qd4+
3q2B1/4Bn1N/1R2p2n/2r1PB2/3Q1bQn/NK1B1b1B/1bPb1QP1/1R2bk2 b - - 0 1 illegal: Other
4NRB1/1kB1Bp1K/P6Q/2b1rP2/NRnr1Qb1/B2BbP1r/1q3r2/1r3N2 b - - 0 1 illegal: No possible last move, all moves rejected
1b5Q/QB3bQ1/1q4PR/p1r1B3/4RN1r/P4nPb/kb1rNQR1/Q3bK2 b - - 0 1 legal: proof: e4 g5 f4 d5 fxg5 b5 exd5 b4 g4 Nc6 c3 Nd4 cxb4 Nf5 b5 Ng3 hxg3 Qd7 Qa4 Qd6 Qd1 Qd8 d4 Kd7 b4 Kd6 a3 a5 b6 f5 b5 e5 b7 h5 b8R c5 g6 h4 g7 e4 g5 e3 g6 h3 b6 f4 b7 c4 Bd3 e2 Bf5 c3 Bb2 f3 Be4 h2 Nh3 c2 Nf4 c1B Ra2 Rh4 Nc3 Nf6 g8Q Be6 Qg7 Qb6 Re8 Rc8 b8Q+ Rc7 Qa7 Rc5 Kf2 e1B+ Kf1 f2 Nce2 Bf7 Bg2 Ng4 Re4 Be7 Bc3 Bb2 Qa1 Bd8 Bf3 Bc7 Bg2 Kd7 d6 Kc6 d5+ Kb5 d7 Bb8 d8Q Ne5 d6 Nf3 Bd4 Ka4 d7 Kb3 Be5 Qe6 Qdh8 Qb6 Rg1 h1R d8Q R1h2 Qd4 Rh5 Rh1 R2h4 Bd6 Rhd5 Qdf6 Rd2 Be5 Rg4 Rh6 Rh4 Bh1 Nd4 Kg2 f1B+ Kg1 Bh3 Bg2 Nf3+ Kf1 Bfe6 Qff8 Rc4 Qc5 Bf7 Qf2 Rc5 Ng1 Rdd5 Rd4 Bbc3 Qe3 Ng5 Rf2 Rd8 Nge2 Rd6 Ra4 Rd2 Qd4 Bb2 Rc4 Bhe6 Bb7 Nf3 Rg2 Bg4 Qf2 Bh3 Qc1 Ka2 Re4 Rcc2 Qd1 Rc5 Qa1+
3B2nq/bN1q2r1/1P1rB1b1/Np3P2/2N1Q1r1/rPKQ2k1/Rr4B1/1NRN4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 f5 exf5 g5 hxg5 d4 a5 d3 cxd3 Kd7 d4 Ke8 d5 Nd7 Rh2 Nh6 Rh1 Nb6 axb6 Ng8 g4 Kd7 d4 Kd6 Kd2 e5 f4 a5 g6 h5 g5 c5 b3 a4 f6 h4 g7 c4 f7 h3 g6 e4 Ra2 h2 Bg2 a3 Kc3 e3 Nh3 e2 Nf2 e1R Qd3 Re4 Nd1 Rh7 f5 Rg4 Re1 h1Q Bg5 Qd7 Bd8 Bb7 Qe4 Bc6 Rf1 Be7 f8N Ra7 Rg1 Rh6 Rf1 Bh4 Qd3 Bg3 Rg1 Nf6 g8Q Rb7 Qh8 Ng8 g7 Rc7 Ng6 Ra7 Kc2 c3 Ne5 Rf6 Qh4 Qh3 Qg5 Qh8 Qge3 Rh6 Qde4 Bh2 Kd3 c2 Kc3 Bg3 Q3d3 c1R+ Rc2 a2 Rh1 Nf6 g8B a1R Be6 Ng8 Nb2 Qb7 Bc7+ Ke7 d6+ Kf6 d7 Kg5 d8N Rh7 d5 Rg7 d6 Rd1 d7 R1a2 Qdd5 R7a3 Nec4 Rd4 Rf1 Kh4 Rfc1 Be5 Nd1 Kg3 Nf7 Qc8 d8N Be8 Na5 Qd7 Nd6 Bg6 Ndc4 Bd6 Ndb7 Rd2 Bd8 Bb8 Qdd4 Ba7 Qf6 Rd5 Qfd4 Rd6 Rf2 Rd2 Qdd5 Rd4 Rfc2 Rd2 Ra2 Rb2 Qdd3+
1B6/4RBNr/1RN1p3/Q3qb2/KP4q1/Nr1bn1kP/Qb1NP1b1/N1R2b2 b - - 0 1 illegal: No proof kernel
KR5r/3nR1P1/3N1Bq1/N2N1Q1n/1q2p1bk/Q2qP1N1/1P1QB3/1Nr2n1q b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 b4 fxg5 b3 h4 e6 g6 Qd7 g7 Nf6 g5 Qe7 g6 Qd8 axb3 Be7 b4 Ng8 b5 Bg5 hxg5 Ke7 Rh6 Kd7 Rh1 Ke8 Kf2 Ke7 Ke3 f5 Kd4 h5 Kc5 a5 d4 h4 b6 f4 b7 e5 d6+ Ke6 d7 Kf5 d5 Kg4 d6 h3 Qa4 h2 Qa3 Ne7 g8N f3 g7 a4 g6 e4 Nf6+ Kh4 g8Q c6 g7 f2 Qe6 Re8 Qf5 Ng6 Nd5 Rh8 e3 Qe8 Kb6 c5 d8N c4 d7 c3 Bd2 c2 Nf7 c1Q Be2 f1N Bc3 Nf4 Nd6 Qd1 d8Q+ Qe7 Bd4 Qd3 Be5 Qg5 Bf6 Nh5 Kc7 Nd7 b8N Ra5 Nc6 Rc5 Ra2 Rc1 Ra1 Ne5 Kb8 Be6 Ka8 Nd7 Qe5 Bg4 Qf5 Qd4 Na5 Qd3 Qc3 a3 Qd2 Nf8 Qe7 a2 Qa7 Rh7 Qc5 Nd7 Qa3 Rh6 Bf3 Rh7 Ne2 Rh6 Ng3 Rh7 Rg1 h1Q Be2 Rh6 Rg2 Rh7 Rf2 Rh6 Qe6 Rh7 Rf5 Rh6 Re5 Rh8+ Bd8 Qf6 Qf5 Qg5 Re7 Qg6 Nbc3 Re1 Rd1 a1Q Nb1 Qa2 Rc1 Qab3 Rc8 Rc1 Rb8 Qbb5 Bb6 Qbc4 Bd4 Qb4 Bf6+
R1RNr3/4B3/Br4nr/1qq5/1QRRnPKQ/r3pRB1/N1b1P2P/1q4k1 b - - 0 1 illegal: No proof kernel
R1B2q1B/3pn2q/K1QPNb2/2r1Q1Rb/n1P2nQN/k3n1R1/PR2R3/2b5 b - - 0 1 illegal: No proof kernel
7N/rq1PN2p/BP1R4/q1R2n1P/1BB2kb1/Qn5q/2b4Q/B1bbKRB1 b - - 0 1 illegal: No possible last move
B2kn1n1/qQr4P/1n1Rn1p1/2QR4/2r2NPB/b5NP/1q1qNK1N/1N3Q2 b - - 0 1 illegal: No possible last move
2N1QK1n/bBq3B1/1N1p2PR/1n2q1R1/P2PNR1Q/b1k2N2/3bb2N/5rq1 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 Ra7 c3 Rb7 c4 Rb5 cxb5 Bb7 Qa4 Ba6 Qd1 Bc8 Ke2 Kf7 Ke3 e5 Ke4 h5 Kd5 c5 d4 e4 f4 c4 a4 e3 g4 c3 b6 b3 g6+ Kf6 a6 c2 a7 b2 a8N e2 g5+ Kg7 b7 e1B Ba6 h4 Nf3 h3 Nh2 d6 Qg4 Nd7 Ke6 Ne7 b8Q Nc6 Qh4 Bd2 Nc3 b1Q Nb6 Be7 Ne4 Rf8 Bb7 Qc7 f6+ Kg8 g7 Bd8 f5 Qb5 Ra3 Na7 Rg3 Qe2 Rgg1 Nb5 Qa8 Qh5 f7+ Kh7 f6 Kg6 g8N Ne5+ Kd5 Kf5 g6 Bc3 Bd2 c1B Bh6 B3d2 Bg7 Ba3 Rg2 Re8 f8R Nf7 Rg3 Nh8 f7 Re6 Rg2 Rf6 Qb8 Qe7 Rg3 Bc7 Qa8 Bb8 Kc6 Ba7 Rg5+ Ke6 Qb8 Rf1 Qa8 Qf6 Ne7 Qh7 Qb8 Qe5 Qa8 Nc3 Kc7 Bd7 Kd8 Bb5 Nec8 Be2 Ke8 Nb5 Nc4 Qc5 Ne5 Qh5 Nef3 Qc7 Rg4 Qf5 Rf4 Qf6 Rg1 Qf5 Rg5 Qe5 Rg8 Qc6+ Kf8 Kd5 Ne7+ Kc4 Qe8 Qc7 Nc8 Kb3 Bf6 Bc4 Rg7 Kc2 Rh7 Be2 Rh6 Kb3 Bg7 Kb4 Kg8 Kb3 f8N Kc2 Ng4 h2 Nd7 h1Q Ndb6 Qg1 Ngh2 Kb2 Kf8 Kb3 Nf6 Kc3 Ne4+
R4b1q/1n2nN2/1p2B1N1/1NQ1B3/1Q2N1P1/1r1NQb2/PP2nKb1/1qnk1R2 b - - 0 1 illegal: No proof kernel
QNB1n3/1p1Qb1n1/B1P4K/3R4/3Nq1BR/q2P1Bqr/1Pq1n3/BkN1r3 b - - 0 1 illegal: Other
1r1n1n1B/1B2NQb1/nB3Q2/rPBpB2r/N2P3b/4PK2/kR4R1/1N3n1b b - - 0 1 illegal: No possible last move, all moves rejected
QN3NbB/1k5N/5Q1K/nprP1P2/nPB3RB/1r3BbR/6B1/r3r1bn b - - 0 1 illegal: No possible last move, all moves rejected
8/Q2Qp1n1/1KP3bb/1R1BB1kn/NnNBP2R/1b1nb3/P5Bq/4r1NB b - - 0 1 legal: proof: g4 c5 h4 f5 gxf5 b5 b4 a5 bxa5 g5 d4 g4 dxc5 Ra6 Bb2 Rg6 Bc1 Rg5 hxg5 Bg7 Na3 Bh6 Nb1 Bf8 Kd2 Kf7 Ke3 h5 Kd4 d5 c4 h4 f4 g3 c6 h3 Kc5 g2 f6 Kg6 c7 d4 f5+ Kh5 g6 b4 g7 h2 a6 d3 a7 b3 a8B d2 f7 b2 f6 Na6+ Kb6 Rh7 c5 Kg5 Na3 b1N Nc4 Nc3 Bb2 Ne4 Be5 Bf5 Rb1 Nd6 Rb5 Ne8 e3 Qd4 c8N Nb4 Bd5 Qh4 c6 Be4 Qa4 d1N Qa7 Bg6 Bf3 Nf2 e4 Nfd3 Qd7 Nh6 g8B Ng7 Qa7 Nh5 Qd7 Bg7 f8Q Nf5 Bd5 Bh6 f7 Nfg7 Qa7 Rh8 Qd8 Qf4 f8B Qg3 Ne2 g1B+ Bd4 Qh3 Qdd7 Be3 B1g2 Rg8 N8d6 Rh8 Nb2 Qg3 Ndc4 Qd6 Rb1 h1B Ng1 Qh2 Na4 Rh7 Bf1 Bg2 Rb2 Bh3 Bh1 Bg4 Bfg2 Bd1 Rf2 Bb3 Rf4 Ne8 Bg7 Rh8 Be5 Neg7 Qe6 Rf8 Rh4 Rf1 Qc8 Re1 Qcd7
1NBnBB2/1rrQ1NP1/k3n1QB/1p6/1P2B3/1RR1n1b1/K2PR2n/4r1rb b - - 0 1 legal: proof: f4 b5 h4 d5 c4 e5 cxd5 g5 fxe5 Nh6 hxg5 Qe7 a4 Qe6 a5 Qb6 axb6 Ng8 e4 Kd8 g4 f5 e6 h5 b7 a5 d6 c5 g6 a4 e7+ Kd7 e8R Kc6 d7 Kb6 d8Q+ Ka7 e5 h4 g5 c4 g7 c3 g6 c2 e6 a3 e7 f4 Nc3 f3 Na2 h3 Bd3 h2 Nb4 a2 Nc6+ Ka6 Be4 Be6 Qd7 Bf5 Nh3 Rh5 Rb1 a1R Ng5 Nf6 g8B Ng4 g7 Ra7 Be6 Ne3 Nf7 f2+ Ke2 f1N Kd3 Bg4 Kc3 Bf3 Kb3 Rc5 Rc8 Bg2 e8B Bd6 Qh5 Bg3 Qg6 Rc4 Rg1 Bh1 Rg2 Rc5 Re2 Rc4 Na5 Nc6 b8B Rb7 Bf4 Nd8 Bh6 Rcc7 Nc6 Ra4 B4d5 Re4 Ka2 Re5 b3 Re4 Ba3 c1N+ Kb2 Nd3+ Ka2 Nf4 Bf8 Re5 b4 Rg5 Bg4 Nfe6 Bdf3 Rc5 Be4 Rc1 Rb3 Re1 Ng5 Bg2 Nf7 h1R Rc3 Nh2 Ra8+ Kb6 Raa3 Rhg1 Rab3 Ka6 Qe7 Nd4 Bc8 N4e6 Qd7 Bh1 Nb8+
4bn1n/n3N3/2rB1p2/1rbPPPRB/QB1k2R1/3p2B1/4q1Bb/K2RNQ2 b - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e5 dxe5 d4 axb5 Bf5 c4 Qd5 cxd5 Bc8 Kd2 Ke7 Kc2 c5 h4 g5 f4 a5 b4 d3+ Kb2 a4 e4 f6 f5 g4 b6 g3 h6 c4 h7 g2 h5 Bg7 b5 Bd7 b7 Ra7 h6 Bc6 b6 Bb5 e6 Kd6 e7 Kc5 e8B Bf8 Ne2 g1N Nd2 Bd7 Nd4 Nh3 Rg1 Ne7 Rg4 Ra5 Nc6 Nc8 Ne7 Nf4 Nf3 Ng6 Ne1 Kd4 Bg2 Na7 Bd2 Rb5+ Bb4 a3+ Kb1 c3 Qa4 Rg8 h8Q c2+ Ka2 c1Q h7 Qc6 Rd1 Qc2+ Ka1 a2 Qg7 Qd2 h8R Qe2 Rh5 Nh8 Rhg5 Bc6 Bg6 Be8 Bh5 Nd7 Qh7 Rg7 b8B Rf7 b7 Rg7 Nc8 Bc5 Bd6 Nf8 b8B Rc7 Ne7 Rc8 Bg3 Rc6 Bbd6 Qe3 Kb2 a1B+ Ka2 Bc3 Qg7 Bd2 Ka1 Qe2 Qg8 Be3 Qe6 Bg1 Qe5+ Ke3 Qf4+ Kd4 Qf1 Bh2 e5+
r3b2Q/1nq2RB1/1rppQ3/1n1B1PPN/QB5N/P5Qn/Q7/1RK2bbk b - - 0 1 illegal: No proof kernel
R4bB1/Q2rR1nQ/P3qpK1/P2N1r2/1n5B/B2bP2p/kNn5/1Nr2N1N b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Ke3 h5 Ke4 c5 Kf5 b5 a4 h4 g4 c4 d4 h3 a6 c3 e6+ Kd6 g6 c2 g7 b4 g5 b3 g6 b2 Nf3 Rh7 Nh2 Qh4 Qd3 Bb7 e7 Ra7 e8N+ Ke7 d6+ Kd7 d5 Nf6 g8N Rh8 g7 Nh5 Ne7 Nc6 g8N Qc4 Nh6 Qh4 N6g4 Nf6 Nf2 Kd8 d7 Qd4 Nd6 Kc7 d8B+ Kd7 Nc4 Qe3 d6 Nb4 Nd5 Kc6 d7 Ne8 Bh4 f6 Kg6 Kc5 Bg2 Qe7 Re1 Qe6 Nf1 Ng7 Nh1 Rh5 Bf3 Bc6 Ra2 Bb5 Bg4 Qb6 Be6 Rf5 Bg8 Qe6 Qe3+ Kc6 Qh6 Kc5 Qh7 Rb7 d8Q Rf7 a5 Rd7 Qb8 Kd4 Ra3 Kc5 Re3 Kd4 Ncb6 Bd3 Na4 Kc4 Qa7 Kb3 Re4 Ka2 e3 Qd6 Re7 Qc6 Rd1 Qe6 Na3 b1N Nb2 Nd2 Nb1 Nf3 Re8 Ne1 Ra8 Bb5 Rd4 Be2 Re4 Bd3 Bd2 c1R Re5 Nc6 Bb4 Nc2 Ba3 N6b4 Re4 Qc6 Ree8 Qe6 Re7
1NBrb1Qb/n2Bn1PR/2P2QQN/1p2Brp1/q3R1nk/4r2P/3Q3Q/2K5 b - - 0 1 illegal: No proof kernel
RKRrnB2/r1Rb2PR/1p3kPR/b3q2p/1QB2r2/1n2Q2N/2NB3P/5b2 b - - 0 1 legal: proof: d4 a5 f4 d5 b4 g5 bxa5 e5 dxe5 d4 fxg5 d3 cxd3 Qf6 d4 Qe7 d5 Qd8 Kd2 Ke7 Kc3 h5 Kb4 c5+ Kb5 f5 g4 b6 e4 f4 a4 c4 a6 c3 e6 c2 d6+ Ke8 a5 f3 e7 Kf7 e8R f2 d7 Be7 a7 Rh7 g6+ Kf6 a6 Bc5 g5+ Kg7 e5 Nh6 e6 Qe7 d8B Nf7 Qd4+ Qf6 e7 Bg4 Na3 Rh6 Qb4 Be3 Bc4 f1B Bd2 c1R Rh8 Bc5 e8Q Be7 Nc2 Qd4 Nh3 Bf8 Qe3 Qf6 Be7 Nc6 Ra4 Re8 a8R Rh7 a7 Bd7 Ka6 Na5 Rc8 Rd8 a8R Qe5 Ka7 Nd6 Kb8 Nb3 R4a7 Ne8+ Rc7 Re1 Rg1 Re2 Rg4 Rf2 Re4 Rf4 Bc5 Qf5 Re6 Be7 Bd6 Bf6 Be7 Bc3 Bc5 Qe5 Rd6 Rh6 Rh7+ Kf8 g7+ Ke7 Qa4 Ba5 Rcc6 Be6 Qa3 Rhf6 Qb4 Bf5 Kb7 Rf7 Rdh6+ Rd6 g6 Kf6+ Kb8 Ra7 R6c7 Rd8 Bd6 Bd7 Bf8
Qq4Q1/3npbrB/1pNBP2n/P1B5/k3r1Br/P2b2Q1/R4NKR/b2B4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 h4 Ra7 g4 Kd7 g6 Bg7 g5 Bf8 h5 Ke8 g7 Qd6 Nf3 Qg6 hxg6 Ra6 Ng1 Ra8 Kf2 Kd7 e4 f5 d4 h5 e5 c5 d6 Kc6 d7 c4 d8B Kb5 d5 b6 d6 h4 d7 f4 a3 h3 Ne2 h2 Nd2 c3 Nd4+ Kc5 Qe1 c2 Nc6 f3 Bc7 Ba6 d8Q Rh3 Ra2 Rh4 Bh3 Kb5 Bg4 Nh6 g8B Bg7 Bd6 Bc8 Bh7 Ka4 Ne4 Nd7 Be3 c1Q Bec5 Qf4 e6 Ba1 g7 Bb7 Qh8 Rg8 g6 Qf8 Qg1 Qb8 Qg3 Ba8 Kf1 f2 Kg2 f1R Nf2 Re1 Be5 Re4 Bed6 Rf8 g8Q Rf7 g7 Bb7 Rd1 Ba6 Rdd2 Be2 Bg6 Bd3 B6h5 h1B+ Kg1 Bf3 Rdb2 Bd1 Kg2 Qc7 Qa8 Qb7 g8B Rg7 Bh7 Qb8 Qg8 B1e2 Bh3 Bg4 Rd2 Bf5 B3g4 Bg6 Rdc2 Bf7 Bd1 Bb2 Bhg4 Ba1 Nh1 Ne5 Kg1 Nd7 Rh2+ Bc2 Kg2 Qc8 Bde2 Bd3 Nf2 Qb8 Bd1+
rB2bqn1/B2P1NP1/1Rp4k/N3p1n1/P1B3R1/rbQR4/Q1RK4/2nR2b1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 f4 Kg7 g4 e5 d6 h5 d5 b5 f6+ Kg6 a6 b4 f5+ Kh7 f7 b3 f6 h4 d7 b2 a7 h3 d6 c6 Be3 h2 Qd4 Be7 f8R Qb6 d8R Qb5 f7 Bd7 g6+ Kg7 g5 Nf6 Na3 b1B Bc4 Bbf5 Kd2 Ne8 Rd1 Rh5 Nf3 Qa5+ Qc3 Bde6 d7 Na6 Rb8 Bd6 Rb6 Rh8 Rhe1 h1N Re2 Rh3 Bf2 Rd8 a8Q Qb4 Re3 Be4 Rd3 Bc5 Rh8 Rg3 Rh2 Nac7 Bg1 Nf2 f8B+ Kg8 g7 Nf6 Bd6 Bg6 Rg2 Kh7 g8R Be8 g6+ Kh6 Ng5 Rc8 Rg7 Ng8 Qa4 Ra8 Nf7+ Kh5 Qa7 Bd5 Qa6 Ne6 Bb8 Ng5 Qa7 Bd4 Qa5 Rf3 Rg4 Qf8 Rh7+ Nh6 g7 Kg6 Rh8 Ng8 Rh2 Rg3 Bb5 Bb3 Nc4 Rf3 Qa7 Re3 Na5 Bc5 Bc4 Rg3 Rf3 Nd3 a4 Nc1 Rd3 Re3 Qa6 Rg3 Qb5 Bf2 Qbb4 Bd4 Qa3 Re3 Bf2 Rh3 Qa2 Rg3 Be1 Bg1 Bf2 Rf3 Ra6 Rh3 Bfa7 Rf3 Rb6 Rh3 Nd8 Kh6 Rhg2 Rf3 Nf7+ Kh5 Qb4 Ne2 Ke1 Bc2 Rd5 Ra3 R5d3 Bb3 Qc3 Nc1 Rc2 Kg6 Kd2 Kh7 Nh8 Kh6 Nf7+
1N2Kn2/2pP1P1b/5R1Q/QNkP4/RN1r1bB1/2rp4/1nn1R1q1/2RrB2R b - - 0 1 illegal: No proof kernel
2bB1n2/kpr1PP2/3BR2r/1nr4R/Q2qQ1K1/1RN2BpP/3b1BB1/1nN5 b - - 0 1 illegal: No proof kernel
3Q1r2/P2Nbp1P/P2k2B1/6rn/Q1N1KpNr/q1B1n2R/8/bNNB1b1R b - - 0 1 illegal: Other
2N1N2Q/pB3N1P/1N1r2bP/QR2Kp2/5B1N/1qn1n2Q/1Pk1nb2/1b3Rr1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 h4 g5 c4 d5 e4+ Ke6 b6 f6 b7 g4 h6 g3 h7 g2 h5 Bd6 h6 Na6 b8Q Qe8 c6 Ba3 c7 Qg6 c5 Qg3 c6 Nb4 Nd2 Qb3 Qh5 Ne7 Ba6 Na2 Nc4 Rg8 Bf4 Nc3 Nf3 g1N Nh4 f5 Nb6 Bd7 c8N Be8 c7 Bg6 Bb7 Bb4 Nd6 Nge2+ Kd3 d4 c8N Rg7 Nf7 Ned5 Ra5 Ne3 Rb5 Bc5 Qc7 Rg8 Qg4 Rd8 Qh3 Rd6 Rf1 Rb8 Ne7 Rg8 Nec8 Bh5 Nc4 Rg1 Qb6 Bg6 Qa5 Kd7 N4b6+ Kc7 Kd2 d3 e6 Bd4 e5 Bc5 Ba6 Kc6 e7 Bd4 e8N Bc5 Nd7 Kd5 e6 Kd4 e7 Bb6 Bb7 Bc5 Ke1 d2+ Kf2 Kd3 Kf3 d1B Ndb6 Kd2 Nc7 Bc2 e8Q Bb1 Qh8 Kd3 Ne8 Kc2 Bh2 Ng3 Kf4 Nge2+ Ke5 Ned1 Qg3 Bf2 Qh3 Ne3 Bf4
1N1N2bq/1rR4B/2B4k/4n3/4Br1P/nQpbQ2P/pNP1q2B/2K1b1RB b - - 0 1 legal: proof: f4 b5 d4 e5 dxe5 h5 a4 g5 axb5 h4 fxg5 h3 gxh3 Bc5 h4 Bf8 Kd2 a5 b4 c5 e4 f5 h3 Kf7 g6+ Kg7 b6 d5 e6 a4 b5 a3 e7 d4 e8B f4 b7 c4 b6 d3 e5 f3 e6 f2 e7 Rh6 Qe1 Ra5 Bc6 Be6 e8B Ne7 Nf3 Rg5 Nc3 Rh7 Rg1 Rf5 Bg2 f1Q Na4 Nd5 Ne5 Nc3 Nb2 Rf4 Bce4 Bg8 B8c6 Nd7 b8N Kh6 b7 Nb5 g7 Bb4+ Kd1 d2 Bh1 Qg2 Qe3 a2 Rb1 Na3 Nf7+ Kh5 Na4 Qf6 Nd8 Kh6 Bb2 Qf8 Be5 Bc3 Bd6 Ne5 Rb3 Bb4 Nb2 Ba5 Rc3 Qg4+ Qe2 Qe6 Qe3 Bb4 Ke2 d1B+ Kd2 Be2 Kc1 Bd3 Bc7 Qg4 Bd6 Qe2 Bc7 Bf7 g8B Rg7 Bgh7 Bg8 Na6 Re7 b8Q Qf6 Qb7 Qh8 Nb8 Rd7 Rb3 Be1 Rc3 Rd5 Qb4 Rb5 Qb3 Rb7 Bed5 Bf5 Bde4 Bg6 Rd3 c3 Rd7 B6f7 Bd6 Bc4 Rc7 Bd3 Qd4 Rf3 Rg2 Ng4 Bh2 Rf4 Rg1 Ne5 Qe3
B1RQn1b1/6r1/n1Q5/1r2R1bK/RPP1N3/P1B2R2/1pnpqq2/B2N2Rk b - - 0 1 illegal: No proof kernel
K5n1/5bB1/1RBbrr2/1PBN2nq/1B1PQr2/1PB1N2R/p4p1N/1Q2k1q1 b - - 0 1 illegal: No possible last move
6N1/1B5Q/1KNr3P/r4Pb1/2Bpbqp1/N1qn1rP1/n4Q2/R1kNB1NR b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 h5 e4 c5 dxc5 h4 exf5 Qc7 Qh5+ Kd8 Qxh4 Ke8 Qh7 Qd8 Kd2 Kf7 Kc3 Kf6 Kd4 d5 b4 g5 h4 a5 f4 g4 c4 a4 b6 e6 g3 a3 h5 a2 b5 Nh6 c6 Ra6 c5 Ra3 b7 Qe7 c7 Qd6 c6 Na6 b8N Nf7 h6 Nb4 b6 Bb7 c8N Ne5 c7 Rf3 Bd2 Be7 Na7 Rd8 c8B Ned3 Nb5 Rd7 Nc6 e5+ Kc3 e4 Kd4 e3 N5c3 e2 Be1 Ba8 b7 Qc7 b8N Rd6 Nd1 Bd8 Bf2 e1Q Ne7 Bc6 Bb7 Qe3+ Kc3 d4+ Kc4 Be4+ Kb5 Qd2 Nbc6 Qc3 Be1 Qb8 Nd2 Qc7 Rc1 a1R Nb1 Nb2 Bc4 N2d3 Rc2 Ra4 Ra2 Qb8 Ra1 Na2 Ng6 Be7 Kb6 Bd8+ Qc7 Ra7 Ne7 Ra5 Bb5 Kf7 f6 Ke6 Ng8 Kd5 f7 Bf6 f8Q Bg5 Qf6 Qf8 Qh7 Qf7 Ba4 Kc4 Bb5+ Kb3 Bc4+ Kc2 Qff5 Qf8 Qff7 Kc1 f5 Qe7 Qh5 Qf6 Qh2 Qe5 Qf2 Qf4 Na3+
2N1Q3/1B1q1r1B/K3pb2/3Br3/PP1PbR2/Bn1pR2Q/1n2Q2B/N1q1q1k1 b - - 0 1 illegal: No proof kernel
3R4/1n1NN3/b1RPK1Rp/1P3B2/Qn2p3/1n1r2Qk/BP1b1RRB/2q2qr1 b - - 0 1 illegal: No possible last move
2nn1bB1/2R5/Pqr2k1B/Q2Kb2b/2BNB2N/2p2PPQ/1pq4B/3R1Q1r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Kf3 c5 Ke4 b5 d4 e5 a4 h5 a6 b4 f6 b3 d6 c4 a5 h4 d5 h3 d7 h2 d6 b2 g6+ Ke6 a7 c3 f7 Rh7 g7 Nh6 g8B Qf6 d8B Ng4 d7 Nh6 a6 Bd6 f8Q+ Nf7 Qh6 Bf8 Nd2 Nc6 Ngf3 Ne7 Nb3 Rb8 a8B Rb6 Rg1 h1Q Nh4 Rc6 f3 Qh2 Bc7 Rh8 d8Q Rh7 Kd3 e4+ Ke3 Qg6 Kd4 e3 Bc4+ Kf6 Qf1 e2 Be3 e1B Rd1 Be6 Bd6 Bh3 Qa5 Nc8 Kd5 Nd8 Nd4 Bg4 Rh1 Qg1 Bh2 Bh5 g3 Bf2 Bb7 Rh8 Qh7 Qc2 Bh6 Be3 Qd7 Bf4 Qdh3 Bc7 Re1 Bf4 Re7 Be5 Rc7 Rh7 Nb3 Qb6 Nd4 Rg7 Qfg2 Rg4 Rd1 Re4 Qg1 Re1 Qgg2 Rg1 Qf1 Rh1 Ba8 Re6 Bc6 Bc5 Bd7 Rc6 Bf5 Bf8 Be4
1BNk3n/RqR3pb/4P1qr/2N3p1/Q3B2B/P2Br3/1B1P4/bNr1n1QK b - - 0 1 illegal: Other
1R3KB1/BB2PQ1b/3ppPqk/qP4q1/2r1n2N/3Q2b1/1B1n1R1B/1Q1r2N1 b - - 0 1 illegal: No proof kernel
1nqQQ2B/q2RP3/pbRnN1K1/4P3/1B2B2P/2Rp4/r2BB2r/3bkN1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Ke4 g5 b4 g4 c4 a6 h4 d6 c6 g3 c5 f6 c7 g2 b6 Qd7 h6 Qe7 b5 Qf7 c6 Nd7 h7 Bb7 c8B Qe8 Nd2 Ne7 Ra3 Nf5 Rc3 Rb8 Ngf3 Rg8 h8B g1Q e3 Rg2 Be2 Be7 Nf1 Bd8 Bd2 d5+ Kf4 d4 c7 Kd5 e6 Qf2 e7 Rh2 Rc6 Ba8 b7 Nd6 b6 f5 Kg5 Ke4 Rc3 Qf8 Kg6 f4 Rc6 Nc4 Rg1 Nd6 Rg2 Qg1 Rg5 Qf2 Rd5 d3 Nd4 f3 Qa4 Nf6 Be6 Nd7 c8R Qg1+ Bg4 f2 Bb4 Bc7 Ne6 Bd8 R8c7 Rc8 Rdc5 Nb8 Rd7 Bc7 Rc1 Bd8 R6c3 Rc5 R1c2 Ra5 Qb5 Ra2 Qh5 Nc6 b8B Bb7 Ba7 Nb8 Qa5 Ba8 b7 Bb6 Rc6 Qc8 R2c3 Bc5 Qd8 Bb6 Qe8 Rg2 Nh2 f1B Qd8 Rf2 Qe8 Bh3 Nf1 Rh2 Qd8 Bg2 Bh3 Bf3+ Bg2 Bc5 Bb6 Qf2 B6a5 Bb6 Ng7 Ke5 e4 Kd4 e5 Qg1 Ng3 Ke3 Ne6 Kf2 Nf1 Ke1 Qe8 Bd5 Qd8 Bb3 Qe8 Qf2 Be4 Bd1 R6c5 Nc6 b8Q Qe3 Qc7 Nb8 R5c4 Qc5 Qcd8 Q5c7 Rc5 Bd5 Rc6 Qa7 Bf5 Bf3 Be4 Bh1 Rc1+ Kf2 Bd2 Ba4 R1c3 Bd1 Bh6 Ke1 Bb4 Be3 Bg5 Bb6 Bd2+
6NB/1KQqp3/1NB4r/1NbBrp2/B1P5/3bn1Bk/1PPRq2n/q2R3Q b - - 0 1 illegal: No proof kernel
1bN5/q2P1n2/rQ1Nb1QQ/1q4R1/5r1Q/nk3pP1/pnB2B1P/1N2K1QR b - - 0 1 illegal: No proof kernel
1K1n3B/3P1B2/N7/1kbq2rB/nQbP3R/2Pq2QN/p3Bpb1/1B1r1QR1 b - - 0 1 illegal: No proof kernel
5N2/1RRppq2/Prq1N3/3Q2r1/1N2b1PN/1b2Bn1N/Q2b1n1P/3B1KQk b - - 0 1 illegal: No proof kernel
q4Qb1/N1PN3P/B1Rr1p2/3N1n1n/1BKRqN1b/4QkP1/2p4r/2N1r1B1 b - - 0 1 illegal: No proof kernel
b1r3Bq/1PN3Pp/2Qpnq2/2Q1Q2K/1RPn2R1/kB2r2Q/N2n1b1B/1Q6 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 e5 Kf3 Ke7 Kg4 a5 f4 a4 b4 e4 b6 e3 b7 e2 g6 e1N c6 a3 b5 a2 b6 Ra4 f6+ Ke6 f7 Ra7 c7 Nh6+ Kh5 Nf5 g4 Ne7 f5+ Ke5 f6 Nec6 g5 Rg8 g7 Nd4 g6 Kd5 Nf3 Kc5 Ng5 Kb4 Rg1 Ra5 Nc3 Ra6 Rb1+ Nb3 Bf4 a1Q Bh2 Qa3 Ne6 Qa2 Rg4+ Ka3 Bc4 Bc5 f8Q Nd2 f7 Nf1 Bb3 Qa1 Qe8 Qf6 f8Q Ng2 Na2 Nc6 b8Q Bb7 c8Q Nd4 c4 Nd2 Nc7 Ba8 b7 Re6 Qg1 Rh8 g8B Re3 Qe4 Qc3 Qc6 Qa1 Qe7 d6 Qe5 Bb6 Qce6 Qc3 Qbc8 Ba7 Rb2 Bc5 Qb1 Nf4+ Kh6 Bb6 Qe6d5 Nfe6 Kh5 Ba7 Qg2 Bb6 Qh3 Bc5 Bf7 Rf8 Bg8 Qh8 g7 Ba7 Qd8 Re8 Qdg5 Rc8 Bd1 Bc5 Rb4 Bb6 Bb3 Qa1 Qd3 Qf1 Qc2 Qf6 Qb1 Rc3 Qd7 Ne2 Qeg3 Bf2 Qc6 N2d4 Qgc5 Re3 Qge5
3kN1Q1/bP3p2/1N2PBB1/1Rr1pr2/1n1P1Q2/3Bqb1R/q2nn3/Q1QQK3 b - - 0 1 illegal: No proof kernel
2R3B1/P3pR2/1r1k1P2/4rpK1/1bBrN2N/4BqQ1/BB3QbP/1Qn1n1q1 b - - 0 1 illegal: No proof kernel
b1b3N1/bNB1q1r1/n1N3PB/Pbr5/P2N1p2/K1QnkR2/2B1pNR1/Q7 b - - 0 1 illegal: No possible last move, all moves rejected
1Q1RB1B1/1N1NQr2/2pB1qbN/2p2Rnn/N7/bk2K2b/1PP3P1/3rN2b b - - 0 1 illegal: Other
2b1R1K1/4B1P1/1QRb2p1/3Brk2/B1PQ1bQ1/3n2r1/PQp2b2/1qQNnN2 b - - 0 1 illegal: Other
1kr2q2/1Br1P1RN/1n3N2/1n2R1K1/1p1b1R1r/rP2QN1b/1PN1p2B/4N1Q1 b - - 0 1 illegal: No proof kernel
b1b1nr1B/q2Rpp2/Q1B4K/2b2BQ1/nP3R1b/1PN2B2/k1r1P3/3BN2N b - - 0 1 legal: proof: f4 g5 fxg5 d5 c4 b5 cxd5 b4 a3 Nc6 axb4 Nb8 h4 Qd6 g4 Qc5 g6 Be6 g7 Bd7 g5 Qc6 h5 Qg6 hxg6 Bc8 Kf2 Kd7 Kg3 Kd6 Kh4 h5 d4 c5 b3 a5 Nf3 a4 Qd3 c4 Bg2 a3 Nc3 a2 Bb2 Ra3 Rad1 a1Q Rhf1 Bg4 Ne1 Ra6 Rf4 Ra3 Bf3 Nh6 g8B Qa2 g7 Bf5 g6 Qa1 Kg5 h4 Bh7 h3 g8B h2 g7 Bc8 Bhe4 h1B Bgh7 Ra2 g8B Nd7 Bhf5 Nb6 Bgh7 Na4 Qd2 Ng8 Bc2 Kc7 d6+ Kb6 d5 Bh6+ Kh5 Bg5 d7 Bh4 d8N Nf6+ Kh6 Ne8 d6 Rf8 d7 Bg2 Nc6 Bh1 Nb5 c3 Ncd4 Bg2 Bce4 c2 Nc3 c1B Bc6 Bh1 Qd3 Be3 Qa6+ Kc7 Rd3 Kd6 d8Q+ Ke5 Rd1 Bef2 Bc2 Bg2 Nf5 Bc5 Rd7 Bh1 Bd1 Bg2 Ba3 Rc2 Ng3 Qa2 Nh1 Qa1 Bg4 Bd5 Be4 Kd4 Bb2 Qa3 Qda5 Qa2 Bgf3 Qa1 Ra7 Qa2 Bb5 Ba8 Bbc6 Bf5 Q6b6 Bc8 Nb1+ Nc3 Qb7 Bb6 Qg5 Bc5 Qb6 Qa6 Rc7 Qb7 Qa6 Qa7 Bc1 Na4 Rd7+ Nd6 Na3 Kc3 Bf5 Ne8 Be3 Kb2 Nb5 Qb8 Nc3 Qa7 Bd4 Ka1 Bh8 Kb2 Nb5+ Ka2 Nc3+
1B4RK/3pb1B1/4P1b1/p1rQ4/k2rq3/2n1NRPR/3R1PBN/2Rnb1bQ b - - 0 1 illegal: No proof kernel
R1r2Q1B/2np1P1b/Q1rr1RP1/1Bb1QQ2/1r1p3K/P1q3NN/3k2B1/2n2Q2 b - - 0 1 illegal: Other
K1B3r1/2pNr1N1/b6Q/1q3QP1/1B4RQ/r1B2p2/b3BPP1/nkn1rRB1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 h4 Ke7 a4 Ke8 axb5 Be7 Qd5 Ba3 Qd1 Bf8 c4 g5 hxg5 Bc5 b4 Bb6 c5 Qe7 cxb6 Qd8 Kd2 Ke7 Ke3 Ke6 Ke4 h5 b7 a5 b6 f6 b5 d6 Nf3 h4 Nd4+ Kf7 Kd5 Kg6 e4 a4 e6 f5 e7 f4 e8Q+ Kg7 e5 a3 e6 h3 e7 a2 Qa4 f3 Bf4 h2 Qc6 Kg6 e8B+ Kg7 Nd2 Rh7 Bd7 Kg6 N2b3 Nh6 Be2 Nf7 Rhf1 h1R Nc5 Qe8 Nde6 Kf5 Bh2 Na6 b8Q Ne5 b7 Re7 b6 Nd3 Bg1 Nc1 Qa7 Rh8 b8B Rg8 Qh4 Bb7 Rb1 a1R Rb4 Ra3 Rg4 Nb4+ Kd4 d5 Bc8 Re3 Qa5 Ba6 Nd7 Nc2+ Kc5 d4 b7 d3 Ba7 d2 b8B d1B Kd5 Re4 Bd4 Na1 Bba7 Bb3+ Kc5 Bbc4 Bc3 Ba2 Qd6 Re3 Kc6+ Re5 Bc5 Ra7 Nf4 Ke4 Qdh6 Ra8 B5b4 Ra7 Bd1 Ra8 Ne6+ Kd3 Qc5 Re1 Be2+ Kc2 Ng7 Kb1 Qa5 Bd3 Qd5 Ra3 Kb7 Ba6+ Kb8 Qf7 Ka8 Qf5 Qde6 Qb5 Qf5+
kRb1B1r1/P3n3/2rrp2B/RK5R/P1BQnQ2/1p1N1q1N/5b1P/rR5R b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Kd3 d5 a4 Kd7 f4 Kc6 c4 b5 h6 Kb7 h7 e6 a6+ Ka7 f6 g4 f5 b4 c6 g3 f7 d4 f6 b3 c5 g2 Kc4 d3 c7 d2 c6 Qd6 Kb5 Qd4 Nc3 Bd6 f8R Qf2 f7 Nf6 Na2 Ng4 Nb4 Qe2+ Nd3 Bf4 Nh3 g1R Rb1 Rg8 h8R Nf2 Rh5 Bb7 c8R Ne4 c7 Nc6 Rb8 Qf3 c8B Bg3 Bd7 Bf2 Be8 Ne7 Be2 Bc8 Bf1 Rh8 Rg8 Rh7 f8Q Rhg7 Rgh8 Rg8 Be2 Re1 Qf4 Reg1 Rd5 Re1 Rhh5 Reg1 Qe1 d1R Qc3 Rd2 Rde5 Rc2 Qb2 Rc6 Rc5 Rd1 Qd4 Rgg1 Nb4 Rd2 Bc4 Rgd1 Nd3 Ra2 Qg3 Ra1 Bh6 Rd2 Qf4 Rd1 Rb6 Rb8 Rce5 Ka8 a7 Rb7 Qc3 Rg1 Rc5 Rd6 Ka5 Rg6 Qd4 Rg8 Kb4 Rc7 Ra5 Rcc6 Kb5 Ng5 Rb7 Ne4 Rb8#
r4q1b/1qn1R1Rq/1kR1p1NR/N2b1BQ1/Q2BR2p/5PBP/2P3b1/2Kn4 b - - 0 1 legal: proof: d4 b5 e4 a5 f4 f5 exf5 c5 dxc5 Ra6 a4 Rh6 axb5 Rh4 Qe2 Rh3 Qd1 Rf3 gxf3 Qb6 Qd2 Qc7 Qd1 Qd8 Kd2 h5 b4 g5 b6 d5 c6 g4 c7 Kd7 b5 a4 f6 e6 f5 a3 b7 d4 f7 g3 f6 g2 b6 Kc6 Bd3 a2 Bf5 d3 Nh3 g1Q Bb2 Qg2+ Kc1 Qd6 Nd2 Qc5 Nb3 Qd5 Na5+ Kc5 Nf4 Ne7 Ng6 Na6 b8Q Bg7 f8R Qb7 f7 Nd5 Qa7 Qh3 Qd2 Ne3 Rg8 Nd1 f8R Bd4 Rb1 a1Q Rf7 Qa3 Rgg7 Bd7 c8R+ Nc7 Qh6 Bc6 Qg5 Bd5 Re7 Qb4 Ra1 Rg8 Ra4 d2+ Kb1 Bc3 Qa8 Qf4 Re4 Bf6 Bd4+ Kb5 Rh7 Bh8 Rh6 h4 Rg1 Qf1 h3 Qd3 Bg4 Qf8 Bf5 Nb2 Qa7 d1B Kc1 Be2 Rg2 Bf1 Qa8 Qb8 b7 Nd1 Rg3 Qa7 b8B Bg2 Rgg4 Qb7 Rg3 Na6 Rc5+ Kb6 Bf4 Nc7 Qe8 Qg7 Qa4 Ra8 Rg4 Qh7 Bg3 Qa3+ Kb1 Qf7 Re8 Nb5 Rc7+ Qc5 Re5 Ba2+ Kc1 Qe7 Rge4 Qh7 Rg7 Nc7 Rd5 Ka6 Rde5 Qf8 Rc5 Kb6 Ree7 Bd5 Rc6#
1n6/2q1Rn1q/R3KNQ1/Rb1R2p1/2P2NP1/2p2N1P/1k4rB/QnrR1B1r b - - 0 1 illegal: No proof kernel
NqB4N/2N2P1K/4p1n1/2r2r2/1n3pQN/1PbqnP1R/2R1QN2/1kB1q2R b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 gxh5 f4 a4 Bg4 axb5 Bf5 exf5 Qd6 Qe2 Qd7 Qd1 Qd8 Ke2 Kd7 Kf3 Kd6 Kg4 Kc5 Kg5 Kd4 Kg6 c5 h4 a5 d6 a4 b3 a3 f6 c4 b6 a2 f7 c3 h6 c2 h5 Na6 h7 Nh6 d7 Qc7 d8Q+ Qd7 b7 Nc5 b8N Ra7 Nc3 Nf5 h6 Ra5 Qg4 Nd3 Nd1 Nb4 Bh3 Kd3 Na6 Ne3 Qe8 Rf5 Nf3 Rc5 Rb1 a1Q Nc7 Qa8 Rb2 Qb8 Na8 Rg8 h8R Rf5 Kh7 g5 Nc7 Bg7 Nh4 Bc3 f3 Rg6 Na8 Rc6 Ra2 Rcc5 Rb2 Nc6 Ra2 Ne5 Rb2 Ng6 Nf2+ Ke2 d4 Qdb5 d5 Qd3 Bd2 c1N d6 Na2 d7 Nb4 d8N Rf6 Qh5 g4 Rc2 g3 Qg4 g2 Ne6 g1Q Nec7 Rff5 Bc1+ Ke1 Bf1 Qg3 Qb5 e6 Qa6 Qd5 Bb5+ Qg1 Bd7 Qd2 Qa2 Ke2 Bc8 Qe1 Ne4 Kd3 Nf2+ Kd4 Qa6 Qdd1 Qe2 Qd3 Rh3 Bb2 Rg8 Ne5 Qg2 Qed1 Kg7 Qe1 h7 Ba1 h8N Bb2 Rd2 Kc3 Kh7 Ba1 Rg4 Ng6 Rh1 Bb2 Rg3 Ba1 Rgh3 Bb2 Qg3 Ba1 Ra2 Bb2 Bd2+ Kc2 Qg4 Kb1 Bc1 Bc3 Rc2
2qBR1qN/4P3/1BnQ4/1K4pN/1PNNp2r/r1k1P1b1/R1r1BNQq/5n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 d5 c4 e5 cxd5 b4 f5 Be6 fxe6 b3 axb3 Bd6 b4 Bc5 b5 Bf8 h4 Ke7 b4 Kd6 d4 c5 Kd2 g5 Kc3 f5 Kc4 a5 h6 e4 h5 a4 h7 a3 b6 a2 e7 f4 h6 f3 b7 f2 Be3 Ra3 Nh3 Rc3+ Kb5 c4 Qd2 Rc2 Na3 c3 Nc4+ Kd7 d6 Ke6 d5+ Kf5 d7 Rc1 d6 c2 Bb6 Nc6 b8Q Nf6 Qc7 Qa8 d8N Nd5 Ne6 Ne3 Nd4+ Kf6 Rh2 Bg7 d7 Qg8 Nf3 Kf5 d8B Be5 Qcd6 Bg3 Rg2 Rd1 Rc1 a1R Rh2 Ra3 Nd4+ Kg4 Ra1 c1Q Ra2 Qc3 Qb2 Rd2 Rh1 Rc2 Rh2 Nf5 e3 Qd2 Bd3 f1Q Rh1 Qh2 Be2+ Kh4 Nf2 Qfh3 Rc1 Qg4 Nd3 Kh3 Nf2+ Kg2 Rca1 Rd3 Ra8 Ra3 Ra2 Kg1 Bd1 Kf1 Be2+ Ke1 Rc8 Nh4 Rb8 Qc8 Ra8 Qg7 Rb8 Nf5 Ra8 Re8 h8N Qg8 h7 Rf8 Ng6 Rf6 Nh4 Rh6 h8N Rh5 N4g6 Rh4 Nce5 Kd2 Nf4 Qg6 Nh5 Qg8 Qc1+ Kc3 Qf1 Bf4 Nc4 Ng3 Qg1 Nf1 Qg2 Bg3 Bdc7 Qb7 Re8 Qc8 Bd8
1B2N3/P2Bn3/2q1N1QQ/2pb1R1P/bbQ2p1K/nB1Q2r1/q4PQ1/R3q1k1 b - - 0 1 legal: proof: e4 d5 g4 a5 b4 h5 bxa5 d4 gxh5 d3 cxd3 Bh3 d4 Bd7 d5 Bc8 d4 b5 e5 Kd7 d6 Ke6 d7 Ra6 d5+ Kf5 Nc3 Rb6 Nb1 Rd6 exd6 Kf6 a4 Ke5 h4 Ke4 a6 c5 a7 g5 a8B e5 h6 f5 h7 g4 a5 g3 a6 g2 a7 b4 Qh5 b3 Nf3 g1Q Ke2 b2 Nd4 Na6 Na3 b1B Bf4 Qdg5 d8Q Qf6 d7 Qgg7 d6+ Bb7 Nab5 Qg2 Ne6 Qg3 Bh3 Qa3 Qg6 Bg7 Nbc7 Nb4 Ne8 Bd5 h5 Qa5 Rg1 Ne7 Rg5 Rg8 h8Q Nc2 Qhh6 Na3 Bc6 Bc2 Ba4 Bh8 Bb3 Bg7 Kf1 Kf3 Qa8 e4 d8Q e3 d7 e2+ Kg1 e1Q+ Kh2 Bd1 Bb8 f4 Rf5 Ke2 Bg4+ Kf1 Kh3 Kg1 Qc7 Qad2 d8Q Qa2 Qcc8 Bh8 Qa6 Bg7 Qc4 Bc2 Nf8 Qc6 Kh4 Bc3 Ne6 Bb4 Qd7 Bg2 Qdd3 Bd5 Qf7 Rg5 Qfg6 Bd1 Bh3 Rg3 Rg5 Nc8 Nd4 Be6 Ba4 Qd5 Bg4 Bf7 Bgd7 Ne7 Rf5 Qd6 Qaf3 Bd5 Ne6 Qc6 Qfe4 Bc2 Qef3 Bb1 Bd1 Bc2 Qfe4 Ba4 Bb3 Qb2 Qef3 Qa2 Qg2+
1B1kN1b1/1rBr4/1rQ1pR2/5Q1p/3q2b1/B5B1/PqRn1PKP/N2B1Rb1 b - - 0 1 illegal: No proof kernel
qnB4n/1RpQBNK1/kP1p1r2/3Q3q/2PPrN2/2R2Nb1/6NN/3nR1r1 b - - 1 2 legal: proof: e4 f5 exf5 g5 f4 b5 a4 Bg7 axb5 Bf8 fxg5 Nf6 g4 Rg8 g6 Bb7 h3 Bf3 g5 Bg4 hxg4 Rh8 Ra6 Ng8 Ra5 Nh6 Ra1 Ng8 Ke2 a5 Kd3 e5 Ke4 h5 b4 a4 c4 h4 g7 a3 f6 a2 Kf5 h3 Kg6 h2 f7+ Ke7 b6 Kd6 b5 Kc5 b7 Kb6 Ba3 e4 Ne2 e3 Be7 Na6 b8R+ Ka7 Nf4 e2 Bh3 e1Q Ng2 Qg3 Re1 Nc5 b6+ Ka6 Rb7 Nh6 g8Q Bg7 f8N h1N Qd5 Rg8 Ne6 Qa3 Nef4 Ne6 d4 d6 Nd2 Qf3 Rc1 a1R Rc3 Qe2 Nf3 Re8 Qb1 Rb8 Qbf5 Nc5 Qd7 Be5 Kh7 Rc8 g6 Nf2 g7 Nd1 g8N Nf7 g5 Nh8 g6 Rf8 g7 Rf6 Nh6 Rc1 Nh2 Qh5 g8N Qf8 Nf3 Re8 Ne6 Bg3 Nef4 Ne6 Bf5 Nd8 Bg4 Nc6 Be6 Qe5 Nf7 Nb8 Ngh6 Rb1 Ng4 Qh5+ Nfh6 Ra1 Ngh2 Rb1 Qd8 Rc1 Bc8 Ra1 Qd7 Rc1 Bd8 Re4 Be7 Nb2 Re2 Rg1 Re1 Qd8 Kg7 Nd1 Nf7 Nc6 Qg4 Qe8 Bf5 Qa8 Bc8 Nb8 Qd7
BQq1q1RN/1rP2pqk/1BQB3b/5rnn/P4BK1/3nR3/3RpP2/N5B1 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 c5 g4 h5 gxh5 Bh3 d4 Be6 dxc5 d4 Bg5 Ra7 Bc1 Bd5 exd5 Ra8 Ke2 b5 Kf3 e5 a4 g5 h4 d3 c4 d2 d6 b4 d7+ Ke7 c6 Kf6 a6 Kg7 c5 e4+ Kg4 e3 c7 e2 c8R b3 c6 b2 h6+ Kg6 h7 Qe7 d8B Ra7 h5+ Kh6 Nf3 Ra8 a7 Qb7 Nh4 Be7 Qc2 d1Q Na3 b1Q Rh3 Qc7 Ra2 Qd5 Bg2 Qa1 Bf4 Na6 Re3 Nc5 Ng6 Rb8 a8Q Rb7 Qb8 Qg7 Qe4 Qd1 Nc2 Bf8 Na1 Nd3 Rd2 Qc2 Bd6 Qe7 Bb6 Qe8 Bh2 Qc4 Bg1 Qa6 c7 Nf6+ Kf5 g4 Qc6 Rg8 h8B Kh7 h6 g3 Rd8 Nh5 Kg4 Qa8 Bf3 g2 Bd5 Qc3 Be5 Qd4+ Bf4 Qg7 Bgh2 g1N Bh1 Nf3 Bg1 Ng5 Nh8 Qc3 Bg2 Rg6 Bd5 Rf6 Bd6 Kg8 h7+ Kg7 Bf3 Rf5 Bf4 Qe6 Bg2 Qc8 Bd6 Kh6 Rde8 Bg7 Rg8 Bf8 Bh1 Qg7 Rf3 Qa5 Qd7 Qd4+ Rf4 Qb5 Re4 Ra7 Bf3 Qf6 Re3 Qfe5 Ba8 Rb7 Qe8 Qeb2 Qe4 Qbe8 Qc6 Bg7 Ng6 Bf8 h8B Kh7 Bhe5 Bh6 Bf4 Qg7 Nh8
3KbBN1/n1N3p1/Pr1B1n2/1NQRb3/QN2R3/3p1Prn/3P1kN1/1B4rb b - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 bxa5 h5 c4 b4 g4 c6 gxh5 Qb6 Qc2 Qc5 Qd1 Qb5 cxb5 Ra7 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 a4 Ke4 h4 e5 f3+ Kd4 h6 d5 b6 e4 b7 e3 h7 e2 a6 e1R a7 b3 h5 b2 h6 c5 a5 c4 a6 c3 Bd3 c2 Nc3 b1B Rh4 Re6 f6 Bb4 Kf5+ Kc5 f7 d4 f8B+ Kc6 Nge2 Nf6 Ba3 c1N Nb5 Kd5 Qa4 Bd6 Re4 Be5 Bad6 Nc6 b8N Ba2 Bc2 Nd3 Bb1 Nf2 Kg6 d3 Kf7 Bc4 Ra2 Nh3 Ra3 Ne7 Nc6 Rb8 a8N Rb6 Ra1 Bd7 Ra2 Nc8 Rc2 Rg8 h8N Na7 Ng6 Rh8 h7 Re8 Ra2 Reb8 Ke7 Be8 Rc2 R8b7+ Kd8 Ke6 Rb2 Kf5 Ra2 Be6 Nge7+ Kg5 Nf4 Kh4 Rc2 Kg3 Ng2 Kf2 Nb4 Rc7 Ra2 Rc1 Nac7 Rg1 Ra1 Nf4 Ng8 Bh3 Nh4 Bf1 Ng2 Nh3 Ra2 Bc3 Rc2 Bb2 Rc5 Be5 Nh4 Bg2 Rd5 Bh1 Ng2 Rc6 Ne3 Rg3 Ng2 Rc1 Ne7 Rg8 h8Q Rg1 Qh5 Rh8 Ng8 Rh6 Bde7 Nh7 Qf5 Rb6 Bd6 Nf6 Qg5 Bc3 Qe5 Bb2 Qc3 Ba1 Qc4 Be5 Qc5+
n2B1rr1/2qr1pQ1/N1Pk1P1K/1RN3N1/1rP1NBp1/n7/r4RB1/1Qb2N2 b - - 0 1 illegal: No possible last move
2Qn1B1K/2Rqn2P/R1B3PN/b1B2p2/nNr1nn2/p4k2/P1B4B/QrN5 b - - 0 1 legal: proof: g4 d5 e4 c5 exd5 g5 b4 h5 gxh5 g4 bxc5 g3 f3 Bg4 fxg4 Qc8 Nh3 Qc7 Ng1 Qd8 Ke2 Kd7 Kf3 a5 Kf4 b5 Ke5 f5 h4 b4 c4 a4 d4 g2 h6 a3 h7 e6 h5 b3 g5 b2 c6+ Ke7 d6+ Kf7 d7 Qe8 d8B Qe7 d5 Ra5 c7 Na6 c8B Nb4 h6 Kg6 c5 Qf7 c6 Nc2 c7 Be7 Bd7 Ra6 c8Q Qe8 d6 Bf8 Bc7 Nb4 Nc3 b1N Nd5 Nc3 Ne2 g1N Be3 Ne4 Bc5 Ra4 Bc6 Ne7 d7 Nh3 d8B Kh5 Rc1 Kg4 g6 Rg8 h8N Kf3 h7 Nf4 Nf7 Qd7 Rh4 Bh6 Qe1 Bg5 Rg4 Bh4 Qd1 Be1 Nh6 Bd2 B7d6 Rf8 B8c7 Rh8 Qa6 Rb8 Rc2 Rb5 Qa1 Rb7 Nc1 Rb5 Bd3 Rb8 Kd4 e5+ Kc4 Bc3 Qc8 Ne2 Rg5 Nf2 Ba8 e4 Bd4 e3 Rg4 Nec6 Bf8 Nd8 Bh2 Nbc6+ Kc5 Rb1 Re4 Nb4 Re6 Nf4 Ra6 e2 Be3 Bd2 Kd4 e1N Ke5 Nbc6+ Kf6 Ne7 Kg7 Ne4 Rc7 Ba5 Bc6 Rc4 Bc2 Ned3 Kh8 Ndc5 Nb4 Na4 Bc5
3K2R1/Q1RR3P/P1bQB1b1/3N2BB/2r4N/pbrk3q/P2p2bb/R4Rn1 b - - 0 1 illegal: No proof kernel
R2bBn2/Q2RkbR1/p7/P2pN3/K4R1N/3PN1qr/nQn1PR2/4nnB1 b - - 0 2 legal: proof: f4 e5 fxe5 h5 g4 c5 gxh5 Qc7 b4 Qa5 bxc5 Qd8 c4 f5 h4 g5 a4 b5 d3 d5 Kd2 f4 Kc2 f3 Kb3 a6 a5 b4 c6 f2 c5 g4 h6 g3 h5 g2 e6 Nd7 e7 Bb7 c7 Qc8 h7 Bc6 h6 Ne5 Na3 Qd7 c8R+ Qd8 Nc4 Nd7 Rc7 Ra7 Nf3 g1N Be3 Nh3 Nh4 Ng1 Bh3 f1N Rh2 Bb5 c6 Nf3 Bg1 Kf7 e8R Rb7 Ra4 Qb8 Re6 Be7 Ne3 Kf8 Rf2 Ngf6 Rd6 Ng4 Qd2 Bf6 Qb2 Bd8 Qd4 Ke8 Qa7 Nf8 Rg7 Rd7 c7 Ne1 c8R Qc7 Ra8 Bc6 Kb2 b3 Ka3 b2 Raf4 b1N+ Kb3 Nc3 Kb4 Rg8 h8N Na2+ Kb3 Bb5 Nf7 Ke7 h7 Qb8 h8Q Qc7 Nc4 Nge3 Bg4 N3c2 Ne3 Qb8 Bh5 Qc7 Rgg2 Qb8 Qb2 Rg3 Ne5 Rh3 Be8 Qc7 Rb6 Qd6 Rg8 Qg6 Rd6 Qg3 Rg5 Rc7 Rgg6 Bd7 Rg8 Be6 Rg7+ Bf7 Ka4 Rd7 Rxd7+
n1n2b2/5p1Q/nNPnBp2/1BN4b/5B1R/1rP2P1R/K2R1B1Q/n1k3qB b - - 0 1 illegal: Other
QQ1n4/7b/K1Q2bk1/2PNp1b1/RPB1Pp1q/Q1r1B3/2r1QrRN/R6b b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 g5 fxg5 b4 h4 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 Bh6 g6 Ba6 h5 Nc6 g5 Bf8 g7 Bc8 Rh4 Ne5 Rh1 Ng6 hxg6 Qc7 Bd2 Qb6 Bc1 Qd8 Kd2 f5 Kd3 a5 Kc4 h5 b4 a4 e4 h4 b6 d5+ Kb5 h3 c4 h2 b7 a3 b8Q d4 c6 f4 c7 d3 c5 d2 Qb3 d1R Nf3 a2 Be3 Bf5 c8Q Rh3 Nc3 Rd2 Bc4 Nh6 g8R Rf2 g7 Bh7 g6 Nf7 Qa3 e6 Rhf1 h1B Qc6+ Ke7 Rfb1 Kf6 Nh2 Be7 Nd5+ Kg5 Rb2 Kh6 Rh8 Bg5 g8Q Kh5 g7 Kg6 Rd2 Qe7 Qgc8 Nd8 Q8a6 Rhf3 Rb2 Rc2 Ka5 Rff2 Kb6 Ra7 Qab5 Qf6 g8Q+ Rg7 Ka6 Rc3 Rc1 a1B Rd2 Bb2 Ra1 Qe7 Qba8 Rc2 Qf8 Bbf6 Rg8 Rc3 Rda2 e5 Qab8 Qd7 Qba8 Qh3 Qfd6 Qh4 Qdb8 Rf3 Rg2 Rf1 Rf8 Rf2 Rf7 Rcc2 Ra7 Rd7 Bb3 Rd6 Qe2 Rc3 Bc4 Rd7 Nc7 Rd2 Nd5 Ra2 Kb6 Rd2 Ra4 Rdc2 Ka6
6kn/1P4pp/q3Pb1B/b2R1BPb/rQn5/B1B4n/1NKB1R2/R2NQb2 b - - 0 1 illegal: No proof kernel
1n3kr1/rNN4p/pn1N2R1/r1N1B3/nB1KR1qP/2P2bQ1/P1BQ1r2/3N4 b - - 0 2 legal: proof: d4 e5 dxe5 c5 b4 f5 bxc5 Ke7 e4 Kf7 exf5 Ke8 g4 Be7 f4 Qb6 g5 Bf6 gxf6 Qd8 Ke2 d5 Ke3 g5 h4 b5 f7+ Kf8 c3 a6 c6 g4 c7 g3 e6 g2 e7+ Kg7 f8B+ Kf7 e8N b4 f6 b3 f5 b2 Nd2 b1N Bb4 Qd7 Ne4 Qc6 Nh3 g1R Nhf2 Nh6 Bd3 Bb7 c8N Rf1 Kd4 Kg8 Bf4 Ra7 Rg1+ Ng4 Be5 Qa4 Nc5 Nd2 f7+ Kf8 Nc7 Nc4 Qd2 Nb6 Bc2 Rg8 Re1 Ne3 Nd1 Nec4 Nd6 Rf2 Re4 Nb2 Rg6 Ba8 Ncb7 Qd7 Qf4 N2a4 Qg3 Qe6 Ke3 d4+ Kd3 Ke7 f8N Qc8 Nfe6 Qd7 Ng7 Kf8 f6 Qe6 f7 Qg4 Nc5 Bd5 Nge8 Bc6 Ndb7 Bd5 Re2 Bh1 Ned6 Bf3 Kd2 d3 Ke3 Qf5 Kd4 d2 Re4 Qd7 Nb2 d1R+ Bd3 Rb1 Nd1 Rb3 Bb1 Qg4 Bc2 Ke7 N5e6 Ra3 f8Q+ Kd7 Qff4 Ke7 Nf5+ Kf7 Nec5 Kf8 Qc1 Nb2 Qe3 Ra5 Qd2 N2a4 Nfd6
1k2N3/4r2B/2Qbn1pQ/bPn3P1/1qN1B2p/n2B3P/Bq1B2R1/1n1R2KQ b - - 1 2 legal: proof: e4 a5 d4 d5 a4 b5 axb5 c5 dxc5 e5 f3 d4 Ke2 Be6 Kf2 Bd5 exd5 e4 Ke2 e3 Ke1 Ra6 Bd2 Re6 Bc1 Re4 fxe4 Ke7 Qe2 Kd7 Qd1 Ke8 g4 Kd7 b4 Kc7 c4 h5 h3 f5 d6+ Kc8 c6 f4 c7 d3 g5 h4 b6 f3 c5 e2 Kf2 e1N b5 a4 e5 a3 e6 a2 d7+ Kb7 c8B+ Ka8 c6 d2 c7 Bb4 b7+ Ka7 e7 Rh6 e8B Rf6 Rh2 Bf8 Bg6 Nc2 Nc3 Nc6 Be4 Qe7 d8Q Qb4 Qe8 Re6 Nd5 N6d4 Qc6 Na3 Nf6 Bd6 Bfd3 Re7 Rg2 Ne6 Ne8 Nf6 Bd7 Qb2 c8B Kb8 Qf1 d1Q+ Bd2 Qdc2 Rd1 a1B Bh7 g6 Be4 Nd4 Bdf5 Qcb3 Bce6 Qb4 Ba2 Nd7 Bd3 Ne6 Bfe4 Ndc5 Qe1 Qg7 Kf1 f2 Nf3 Qf6 Ne5 Bc3 Nc4 Qe5 Qe2 Qd4 Qf3 Qb2 Qh5 Ba5 Qh6 Qdc3 Ke2 f1N Kf2 Qcb3 Kg1 Qb4 Be1 Nf8 Rc2 Q4c3 Bd5 Bac7 Qa6 Qcb4 Rh2 Nd2 Rf2 Ndb1 Bd2 Bg3 Qe6 Ba5 Qe4 Qe5 Qh1 Nfe6 Rg2 Qeb2 B5e4 Be5 Ned6 Kc7 b8Q+ Kd7 Qe8+ Kc7 Qd7+ Kb8 Ne8 Bd6 Qc6
4b3/3Qr1PB/NNq2Bn1/P2p1K1k/1n4pN/N3BRP1/1r1n2nN/qQ4R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 g4 d4 Bh6 dxc5 Bg5 hxg5 Kf7 Rh3 Kf8 Rh1 Ke8 Ke2 Kf7 Kd3 h5 Ke4 b5 a4 e5 c4 d6 f4 h4 g6+ Kg7 c6 Kh6 a6 h3 a7 b4 a5 h2 f6 b3 g3 b2 c7 Ne7 f7 Nec6 f8B+ Kh5 g7 Na6 f5 Qh4 c5 Ncb4 f6 Kg6 f7 Nc2 c6 Na3 Be7 Qf6 f8N+ Kh5 Nf3 Nc4 Bd3 Rb8 a8N Bd7 c8Q Be8 c7 Nb4 Rf1 h1Q Na3 b1N Be3 Qh6 Bh4 d5+ Kf5 e4 Nh2 Qc6 Rf3 Ne5 Ng6 Nd2 Bf6 Qf1 Nh4 Ng6 Qb1 Rg8 Bf2 e3 Qd7 e2 c8N e1N Ncb6 Ng2 Be3 Rf8 Be4 Rf7 Nc7 Re7 Na6 Qfc1 Qb3 Qb2 Rg1 Qa1 Qb1 Nc2 Na8 Rb2 Nb6 Nb4 Bc2 Nf8 Bd3 Ne6 Ke5 Nef4+ Qe6 Qc5 Bh7 Qc6 Kf5 Ng6 Qd7
1N1kQ1rB/2b1q2b/Q1BB1RpP/1p1q1n1N/5r2/1P2NBPR/1b2BK2/3b4 b - - 1 2 legal: proof: c4 b5 a4 d5 cxd5 h5 f4 e5 fxe5 h4 a5 h3 Qc2 Nd7 Qg6 Nb6 axb6 Ke7 Qh7 Kd7 Nxh3 Ke7 Ng1 Ke8 d4 a5 e4 c5 h4 f5 b7 c4 b8N g6 b3 c3 g3 c2 d6 a4 h5 a3 e6 f4 d5 a2 h6 f3 e7 Bg4 e5 Bh5 Ne2 Qa5+ Nd2 Qa6 Rh3 Bg4 Bb2 c1Q+ Kf2 Qb1 Nc4 Nf6 Nf4 Nh5 Be2 Bd7 Ne3 Qf5 Rf1 Ng7 Nh5 Be6 d7+ Kf7 d8B Ke8 d6 a1B Bc7 Qa7 Bc3 Bg8 Bd4 Bb2 d7+ Kf7 e8B+ Ke7 e6 Qd5 Bf7 Nf5 Bd6+ Kd8 Be8 Be7 Qf7 Bh7 Bc3 Rf8 Bh8 Nd4 Ba3 Bd6 e7+ Kc7 Bb4 Nf5 Bc5 Qa3 Bb4 Ra4 Bc5 Rg8 d8Q+ Kb7 Qd7+ Bc7 Bd6 Rf4 Qc6+ Kc8 Qb6 Qb4 Bc6 Qbe4 e8B Qe7 Qa6+ Kd8 Kg1 Qd7 Ba8 Qe7 Bec6 f2+ Kh2 Qd4 Kg2 Qde5 Bcf3 Qc5 Bac6 Qd5 Rg1 f1B+ Kf2 Bg2 Ra1 Bf1 Ra4 Bg2 Re4 Bh1 Re6 Bg2 Rf6 Bf1 Bc4 Be2 Bd3 Bd1 Bf1 Nd4 Be2 Nf5 Qe8+
K6k/4p2n/nBnb2n1/1Q5b/Q5BP/1R1PP3/NRp1B2Q/rBrBN1b1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 c4 d5 cxd5 g4 b4 Qd6 bxa5 Qb6 Na3 Qg6 Nb1 Qg5 fxg5 Kd8 Bb2 Kd7 Bc1 Ke8 Kf2 b5 Ke3 f5 Kd4 Kf7 Kc5 Kg7 a4 c6 Kb6 f4 g6 b4 a6 f3 a7 c5 d3 b3 a5 g3 d6 f2 d7 b2 d8Q c4 h6+ Kf6 g7 g2 h7 c3 a6 Bg4 Kb7 Bf3+ Qd5 Be4 Nf3 g1B Qa4 c2 Ra2 Nd7 Nc3 b1N Be3 Ne5 Rb2 Bg6 Ne1 Bh5 Qdb5 Nc6 Na2 Nc3 Bb6 Nd5 e3 Nf4 Be2 f1N h3 Kf7 h4 Nf6 g8B+ Kg7 Bd5 Rg8 h8Q+ Kg6 Rb3 Nh7 Qe5 Ng3 Bdf3 Ne4 Bg4 Bh6 Qd6+ Ne6 Qh2 Kg7 Bd1 Nef8 Rb2 Re8 a8B Ng6 a7 Kh8 Bde2 Ref8 Bd1 Rf1 Bge2 Nd8+ Kb8 Bg7 Bd5 Nc5 Ka8 Na6 Bdf3 Be5 Bg4 Bd6 Rb3 Rff8 Rb2 Bf2 Rf1 Bg1 Rf4 Rg7 Rfb4 Rf1 R4b3 Nc6 Kb7 Rgf7 a8B Na5+ Ka7 Rf8 Bd5 Nc6+ Kb7 R8f6 Ka8 R6f2 Bef3 Rd2 Bde2 Rd1 Bde6 Rb1 Bd1 Ra1 Bfe2 Rc1 Nb4 Rf4 Ra3 Rd4 Ba2 Bc7 Qaa5 Bg3 Rab3 Bd6 Bb1 Re4 Nd5 Ra4 Nb4 Ra3 Qaa4 Ra1 Na2
1QB1R1B1/pKBp3Q/1Nr1q3/rNPkN2B/6Bq/Pq1q1R2/3P1bn1/1r6 b - - 0 1 legal: proof: g4 f5 f4 g5 b4 c5 bxc5 e5 fxe5 b6 Bh3 f4 Bf1 Ba6 Bg2 Nc6 Bf1 Bd3 h3 Bf5 gxf5 g4 h4 Nd4 Kf2 Ne6 Ke1 Ng5 hxg5 Qe7 Rh2 Qf6 Rh1 Qd8 e4 Kf7 Ke2 h5 Kd3 b5 c4 h4 g6+ Ke7 a3 h3 c6 f3 c5 g3 c7 b4 Kc4 g2 Kb5 h2 Ka6 b3 c8N+ Ke8 f6 f2 g7 Kf7 e6+ Kg6 e7 Kf7 e8B+ Ke6 e5 b2 f7 Rh5 Qc2 Ne7 g8B Rh8 Nf3 g1Q Kb7 Rh7 Ba6 f1Q Nb6 Ng6 Nc3 b1Q Nb5 Bd6 Bb2 Nh4 f8Q+ Rf7 Bd4 Qe3 Qh7 Qfd3 Rf1 Qbb3 Rae1 h1R Bc3 Rg1 Ba5 Rc8 Re2 Rc6 Rff2 Rg6 Rf1 Kf5 e6 Ke4 e7 Bg3 Ne5 Ng2 Rf3 Bf2 Re1 Rf5 Bef7 Rge6 e8B Qh4 Bh5 Rg6 Bg4 Rf7 Nc8 Kd5 Bc7 Qee4 Ree3 Qf5 Re2 Qe6 Re4 Rfg7 Bef7 Rf6 Bfh5 Rf4 Ree3 Ra4 Re2 Ra5 Qf4 Qe3 Qf8 Rg6 Nb6+ Ke4 Nf7 Qec4 Be6 Qcd3 Qb8 Nf4 Re1 Qee2 Ka8 Qee3 Bc8 Qee2 Qh6 Rg1 Beg4 Ng2 Kb7 Qee3 Re2 Rb1 Qh7+ Rg6 Na8 Kd5 Re1 Qh6 Re8 Rc6 Ne5+ Qe6 Nb6+
Q3Nr2/2br4/rkn1K3/p1p1QP1R/3R2N1/1QpP1n2/P2qR3/QbB3QB b - - 0 1 illegal: Other
2k1q3/brB2p1K/B2N1b1N/2p2P2/4RR2/2p1rQN1/rP1Pn1QN/Bn2N3 b - - 0 1 illegal: Other
r3k2N/1R1r1pqP/1b2Q3/b4PBp/1nQ2PNR/nR6/pB1B3K/b4B1B b - - 0 1 illegal: No proof kernel
1q1kb1K1/b1Q1p2p/1n2RP2/3NNQ2/2np3Q/1nBNPP1B/4R3/Q1r1Q2r b - - 0 1 legal: proof: g4 b5 h4 g5 hxg5 c5 a4 f5 gxf5 c4 axb5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 a5 Kd3 d5 Kd4 a4 Ke5 a3 b4 d4 c4 a2 f3 Bh6 e3 Nd7+ Ke6 Ngf6 c6 Ra4 b6 Ng4 f6 Ra6 c5 Ra8 c7 Ra3 c6 Bb7 c8Q Nde5 g6 Bg7 c7 Nd3 b5 Ra7 Rh2 Ba6 b7 Bh6 b8Q Ngf2 b6 Bf8 b7 Nh3 g7 Ne1 g8Q Ra8 Qg3 Bd3 Nc3 Bh6 Qa7 Ng2 b8N Ne1 Nd7 Nc2 Qh4 Bb5 Qde1 Bf4 Re2 Na3 Bb2 Nc4 Nd5 Bg3 Rb1 a1N Ne5 Nb3 Bc3 Rf8 Qca6 Qb8 Qa1 Rg8 Qb6 Rg5 Rbb2 Rh5 Ra2 Ra7 Ra6 Rh6 Qc5 Ra8 Rd6 Ra2 Qa7 Rc2 Qb7 Rc1 Bg2 Nf2 Nh3 Nd3 Nf2 Nb6 Bh3 Nb2 Nfd3 N2c4 Qba7 Kf8 c8Q+ Be8 Ng4 Be5 Rc6 Bd6 Nge5 Bc5 Qad7 Rg6 Qdc7 Rg1 Kf5 Rh1 Re6 Na8 Kg5 Ba7 Kh6 Nab6 Q8d7 Bh5 Qb5 Bf7 Qbc5 Ke8 Kg7 Bg6 Kg8 Bh5 Q7c6+ Kd8 Q6b5 Be8 Qcc6 Bd7 Qc7+ Ke8 N5f4 Bc6 Ng4 Bd7 Qf5 Bb5 Nge5 Bd7 Qc5 Kd8 Nd5 Be8 Qc7+
4B1Bn/1KBPPQPp/8/R3RbQn/pk3N2/r1rN2n1/1pBB4/bQq5 b - - 0 1 illegal: No proof kernel
3nrN2/3p4/5K1B/1Pp2n1R/Q1RB3p/1q1QBQrb/Pb4P1/1BNb2kB b - - 0 1 illegal: Other
1q6/1RBn4/2p3nq/2k1N2B/3b1R1B/pQP1P1B1/p1rP3r/2BQNKNb b - - 0 1 illegal: Other
2bB4/1kb3pq/3Q2Bn/1K2Pp1r/5Q1P/5pqN/NBRRPB2/r2n2BQ b - - 0 1 illegal: Other
8/1QpPK2R/R1BNB2n/P1kq1BB1/P1bpnNr1/4b1B1/p1q5/2Q3rQ b - - 0 1 illegal: No proof kernel
2b1qb2/ppRr3N/5NQp/KPBnQ3/2kR4/P2R3n/R3q1P1/R3rN1B b - - 0 1 illegal: Other
1k6/Rp1rpN1q/bP3R1R/N1BR2BB/RP1nn2r/K6P/1Qp1n3/3r2Q1 b - - 0 1 legal: proof: c4 h5 g4 f5 gxh5 d5 cxd5 g6 e4 Bd7 exf5 Qc8 b4 Bg7 a3 Bc3 b5 Bb4 axb4 Qd8 Ra5 Be6 Ra1 Bc8 f4 Kd7 d4 a5 Kd2 c5 Kc2 Kc7 Kb3 g5 h6 a4+ Ka3 g4 f6 c4 d6+ Kd7 d5 g3 f7 c3 f8R c2 h7 g2 f5 Ra5 f6 Na6 f7 Nh6 Nh3 g1N Bg5 Rg8 h8Q Ng4 Qb2 Nf6 Be2 Nb8 Bh5 Rg7 Nd2 Qc7 Nb3 Ne2 Qg1 Ra8 Na5 Rh7 Rh8 Qc6 f8R Ne4 Rf6 Qc7 Rg8 Nc6 Rgg6 Kd8 d7 Ncd4 Rh6 Qc4 Ra2 Kc7 d8B+ Kb8 d6 Bf5 d7 Qf7 Bb6 Ra6 Bc5 Rd6 b6 Be6 Qf2 Bc4 Rha1 Ba6 Qg1 Qg8 Bc1 Rh8 Ng5 Qh7 h3 Rc8 d8R Rd7 Rg8 Re8 Rgg6 Rf8 Rd6 Rf4 Rgf6 Rh4 Nf7 Bd3 Nc6+ Kc8 Rd5 N2g3 Bg5 Nd2 Qc3 Be4 Kb2 a3+ Kc1 Bd3 Rb2 a2 Rb3 Nge2+ Kb2 Ne4 Ra3 Bc4 Ra7 Ba6 Na5 Kb8 Ka3 Nb5+ Ka4 Nbd4 Qb2 Nc6 Raf1 Ncd4 R1f3 a1R+ Ra3 Nc6 Kb3 Rd1 Ra4 Ncd4+ Ka3
4N3/Rp2r3/rnp1R1rN/1nNb1q1p/4NN1Q/1BP1Q3/1P1Kn1PB/5kR1 b - - 0 2 illegal: No possible last move, all moves rejected
6Qr/4Bp1N/1n5B/nQp2KQR/P1P2Npr/R3Pbq1/1Qr1B2k/1Q1q4 b - - 0 1 legal: proof: d4 h5 e4 a5 b4 e5 bxa5 h4 dxe5 h3 gxh3 Nf6 h4 Bc5 h5 Be3 fxe3 Ng8 Ke2 Ke7 Kd3 Ke6 h4 g5 c4 b5 a4 d5 a6 c6 a7 d4 h6 b4 h7 b3 h5 b2 h6 g4 Ne2 Nd7 Ra3 Nb6 Nbc3 b1R Nd5 Qe7 Rh5 Rb4 Nf6 Qc5 Nf4+ Ke7 e6 Kd6 e5+ Ke7 Ke4 d3 Kf5 d2 Be2 Rb8 a8Q Qd5 Qa5 Bb7 Qc2 d1Q Qb1 Qd6 Bd2 Rb3 Bb4 Rb2 Qb5 Kd8 e7+ Kc7 e8Q Rc2 e6 Ne7+ Ke4 Ra8 Qg5 Ra5 Qeg8 Rb5 Nh3 Qg3 Nf4 Ra5 Bc5 Ra8 Ke5 Rf8 Ke4 Kd8 Bd6 c5+ Ke5 Nc6+ Kf5 Re8 Bf8 Kc7 e7 Kd6 Bg7 Rb8 e8Q Na5 Qeb5 Bf3 Bf8+ Kc7 Be7 Rd8 Bf1 Rdd2 Bd3 Rh2 Be2 Rh4 Qge8 Rg8 h8B Rf8 Bg7 Rh8 Bd8+ Kd6 h7 Nd7 Bh6 Nb6 Qg7 Ra2 Qeg8 Rc2 Kg5 Ke5 Be7 Qf2 Nd7+ Ke4 Nf8 Qg3 Kf6 Bg2 Qg5 Bh1 Bf1 Kf3 Kf5 Kf2 Be2 Kg1 Q8g7 Kh2 Qgb2 Rg8 h8Q Bf3 Nh7 Re8 Qhg7 Rh8 Qg8
2B5/n1BqQ3/Nqn1P3/1R2p1N1/rp3B2/Q2BPr1k/2PKp3/bB1nQR2 b - - 0 1 illegal: Other
N3b1r1/PB1p3Q/2B3q1/3PQRR1/1qBp2pQ/1P6/kN2B1Kn/B1rq2b1 b - - 0 1 illegal: Other
1Bk2NBb/2RnR1pp/qn2P3/1qNr4/2Q4r/1PpR2P1/4Q1KR/1R1n2Q1 b - - 0 1 illegal: Other
B2n1b1B/2p2b1R/n2B4/r1p1RP1Q/R1Rbp2k/1PRQ3N/2NrP1K1/1n6 b - - 0 1 illegal: Other
1r2QRr1/4B2k/r2n4/1b1p2b1/Q1qNpR1r/pBBPPP2/5KBB/3N3R b - - 0 2 legal: proof: g4 b5 b4 g5 a4 f5 axb5 c5 gxf5 Nc6 bxc5 Ne5 h4 g4 Bb2 Nf7 Bc1 Ng5 hxg5 Bh6 Rh3 Bg7 Rh1 Bf8 c4 Kf7 c6 Kg7 f6+ Kg6 c7 e5 e3 a5 f3 h5 f7 h4 d3 h3 c5 d6 c6 h2 b6 a4 b7 g3 b8B g2 Bb2 Kg7 g6 Rh4 Ne2 g1R Kf2 Nf6 Nd4 Rh8 Bc3 Ra6 Bg2 Bd7 c8R Ne8 c7 Be7 f8B+ Kg8 g7 a3 Qa4 Bg5 Be7 e4 Ra2 Kh7 g8B+ Kg6 Rd2 Bb5 Bb3 d5 Ra2 Qd6 Rd8 Qc6 c8Q Nd6 Rf8 Kh7 Qe8 Qc4 Rf4 Nf7 Rc2 Rf8 Bb2 Rg8 Nc3 Rb1 Nd1 Nd6 Bc3 Bc6 Rg1 h1R Rc1 Rh4 Rf8 Nb5 Bh2 Nd6 Rh1 Bb5 Rf4 Qc5 Ba5 Qb4 Rc8 Qc4 Bc3 Bd7 Ba2 Rb8 Bb3 Bb5 Qd7 Qc5 Rcf8 Qc4 Qe8
1b1qRNb1/N1Pp1Q1B/3P2n1/1K2pNbP/1R1B2Q1/2b4r/1k1B1Bp1/1r2B3 b - - 0 1 illegal: No proof kernel
2k1b1B1/QnN2pR1/qrQN2P1/pQB3rR/K4Qn1/nQ1p4/2NP1P2/4n3 b - - 1 2 legal: proof: h4 c5 b4 g5 hxg5 b5 bxc5 d5 a4 d4 axb5 d3 e3 Bh6 Be2 Bg7 Bf1 Bd4 exd4 Qd7 Be2 Qd6 Bf1 Qd8 c4 Kd7 g4 e5 g6 a5 c6+ Kc7 g7 h5 b6+ Kd6 c5+ Ke6 d5+ Ke7 b7 h4 d6+ Ke8 c7 Kd7 g5 e4 c6+ Ke6 d7 h3 Ne2 e3 Nbc3 h2 Nb5 Ke7 Qb3 Ra6 Kd1 Qf8 Ned4 Rh4 Bg2 Nh6 g8Q Re4 Nc2 Rf4 Ba3+ Rb4 Be4 e2+ Kc1 e1N Kb2 Ng4 Bh7 Ng2 Rag1 Qe8 d8N Ra8 Nd6 Bd7 c8Q Na6 b8Q Nc7 Qa7 Nb5 c7 Ne1 Qcb7 Qf8 c8Q Qh6 Rg2 Rb8 Qf3 Rb6 Qcc6 Ra4 Bb4 Na3 Bc5 Rd4 Qf5 Rd5 Ne6 Qg6 Nc7 Be8 Qbb5 Kd8 Kb3 Qf6 Qf4 Qe6 g6 Rg5+ Ka4 Qc8 Qg7 Qb7 Bg8 Qa6 Ne4 Kc8 Qgb2 Rf5 Q2b3 Rg5 Rhg1 h1N Rh2 Ng3 Rgh1 Nf5 Rh7 Nd6 Rg7 Nb7 Rh6 Ne3 Rh5 Ng4 Nd6+
1rB1n3/3RB1p1/3pb2k/2bN1Rq1/4p1Pb/B2NB2P/B1nPNQ2/2K1Q2b b - - 0 2 legal: proof: c4 a5 b4 b5 bxa5 f5 e4 h5 exf5 Ra6 Qxh5+ Rg6 Qh7 b4 Bb2 Rb6 Bc1 Rb5 cxb5 Bb7 Na3 Ba6 Nb1 Bc8 Kd1 Kf7 g4 e5 a4 c5 f4 d6 b6 b3 f6 c4 a6 b2 f5 e4 b7 c3 h3 Be7 a7 Nh6 a8N Qf8 a5 Qd8 a6 Qd7 a7 Qc7 Na3 b1B Bc4+ Be6 Nc2 Qa5 Ba2 Rc8 Ne1 Re8 Nc7 Nc6 b8B Qb6 a8B Ne5 Ne2 Qb5 Nd3 Bd8 Bb7 Nf3 Ba3 c2+ Kc1 Ne1 Nd5 Ng8 Qh4 Be7 Ba7 Rb8 Rf1 Qa5 Kb2 Bd8 Be3 c1B+ Kb3 Nc2 Qe1 Bb2 Rf4 Bb6 Bc8 B2d4 Rf3 Bdc5 Kb2 Bd8+ Kc1 Qb5 Bc4 Ba2 Rb1 Qa5 Rb7+ Be7 Rd7 Bb3 Nd4 Ba4 Ba2 Bb5 N3f4 Bf1 Nd3 Bg2 Ne2 Bh1 Rf4 Nh6 Rf1 Kg8 f7+ Kh7 f8B Bh4 f6 Ng8 f7 Nf6 Be7 Ne8 f8Q Kg6 Rf5 Qd8 Rg5+ Kh6 Qff2 Qa5 Bf8 Qd8 Rf5+ Qg5 Be7
Nr4n1/2pN1n2/3r1QPB/RP2rr2/N1P2QN1/1Rp1pb1N/4q1BQ/1K2k3 b - - 0 1 illegal: Other
bkn3n1/1pP3NB/B2b1p1p/P3R3/1bQ1r2P/2BN3K/1RRR1Q2/2bR1r2 b - - 0 1 illegal: Other
Q2NknB1/1n5p/1Kb1p1p1/3BbrbR/1B1Pr3/4Q1P1/3P1RBB/5bRN b - - 0 1 legal: proof: h4 d5 e4 f5 exf5 a5 b4 d4 bxa5 g6 c3 Ra6 cxd4 Qd6 h5 Qf6 h6 Qg7 hxg7 Ra8 Ke2 c5 Kd3 b5 a4 e6 f4 b4 Kc4 b3 Kb5 b2 a6 c4 a7 c3 a5 c2 a6 Be7 f6 Bd8 f7+ Kd7 f8B Bc7 f5 Ba5 f6 Kd8 f7 Kd7 Bd6 Ne7 f8R Rg8 Na3 b1B Qf3 Nec6 Bh2 Ke7 g3 Nd7 Bg2 Bd8 Nh3 Na5 Nc4 Bb7 Nf2 Ba2 Rf4 Nf8 Qe3 Ke8 Ba3 c1B Ne5 Bg5 Kb6 Bc6 Bb4 Nb7 Nf7 Bc4 Nd8 Ba3 Rag1 Bf1 Rf7 Rc8 a8Q Rc7 Rf6 Rf7 a7 Rh8 Rf3 Rf4 g8B Rh4 Bc3 Bd6 Bb4 Be5 Rf5 Bgf6 Rh5 Bg5 Bd5 Be7 Rg2 Re4 Rhg1 Bg5 Nh1 Kd7 Bf7 Rg8 Rf2 Rg7 Bg8 Rf7 Qc8+ Ke8 a8B Na5 Bb7 Rff4 Qa8 Rf5 Ba6 Nb7 Bac4 Ref4 Bg2 Re4 Bd5
Nq1k4/q3pRP1/1Q1n1Np1/2B1K2N/4P1B1/2Rr4/pNqqnNP1/3RQ2b b - - 0 1 illegal: No proof kernel
2rb1Q2/2p2B2/kpn2Q2/1pQ1BrP1/B3PRN1/1KP1b1p1/Q6R/N1qQ2n1 b - - 0 1 illegal: Other
2B2n2/1p1b2r1/P1r1R1Qp/2B1R1b1/q1Pp2Q1/1pk5/1PNN2Q1/Q1K2QRn b - - 0 1 illegal: Other
1kq1Q2B/1pR1p2r/3PRb2/QB2R3/1K3n2/Np3RPp/2r1n1NP/r1R3N1 b - - 0 1 illegal: Other
QR3rN1/1bPRpqr1/3B2R1/Q2N1R1r/kBPKp3/1Rp4B/2Pb2p1/n7 b - - 0 1 illegal: Other
R1N1R3/1Bb3Nb/Np2Kn1n/b2pP1p1/1q1Q1pr1/PN3NPk/7B/4Q1Q1 b - - 0 1 illegal: No proof kernel
1RnN3r/1p3K2/1np4P/1B5p/1kQqNNp1/b2n1NR1/PrQ3P1/1QN3B1 b - - 0 1 illegal: No proof kernel
bN6/K2k3B/n1RpNnp1/R3P2N/3P1r1r/p1p1Q1P1/Nq4N1/4BnQB b - - 0 2 legal: proof: c4 b5 b4 e5 a4 e4 axb5 e3 b6 Be7 b7 Nc6 b5 Bd6 fxe3 Nb8 e4 Ba3 e5 Bf8 h4 g6 h5 Qe7 h6 Qa3 b6 Bg7 hxg7 Qb4 Qa4 Kd8 Qd1 Qb5 cxb5 Ke8 Kf2 f5 Ke3 c5 e6 a5 e7 h5 g3 a4 Bg2 c4 Kd4 f4 Kc5 f3 e4 f2 d4 f1Q e5 h4 Ne2 h3 Bd2 h2 Nf4 Rh7 Be1 Qf2 Nc3 Qd2 Na2 Nf6 g8B Rh4 Bh7 Nc6 b8N Qa5 b7 Nh5 Na6 Qd2 Kb6 d6 b8Q Qb4 Nc7+ Kd7 e8N Bb7 Nce6 Nf6 N8g7 Qb2 Ngh5 Nb4 Rg1 Be4 Bh1 Na6 Ng2 Ra7 Qf3 Ba8 Qe3 Rc7 Rf1 Rc8 Qg1 Rf8 Ka7 Rf7 b6 a3 Rb1 Rf8 b7 Rf7 Qf8 c3 Qh6 Qe2 Rb6 Qb2 Qhe3 Rf8 Ngf4 Rf7 Rc6 Rf8 Bf3 h1N Ng2 Nf2 Be4 Nd1 Rf2 Qc1 Rb2 Qb1 Rb5 Qb2 Ra5 Rf7 Qd2 Ne3 Bd5 Nf1 Qde3 Qc1 Ngf4 Qb2 Bh1 Ne4 Ng2 Rff4 Qf3 Nf6 Qd3 Nh2 Qde3 Nf1 b8N+
1nrk2q1/BN4p1/PKb3P1/3Bp2R/QR2BB1P/N2npB2/1p2QR2/1q3r2 b - - 0 1 illegal: Other
4Nq2/P2k2q1/4b2b/K1pBBp2/n4QPr/1pP2QQ1/3R1p1Q/B1NRQ1r1 b - - 0 1 illegal: Other
Q2n4/pB2Nrb1/1PQ2pq1/PRBb2Rp/K3Q1Qk/5qNp/Q2P3r/5N2 b - - 0 1 illegal: Other
1R1q4/pB5Q/1p2rq1B/3N2pB/k2N2PB/P2PR2r/4Q1p1/1NBnbnK1 b - - 1 2 illegal: Other
RRBBN3/2pNpp2/2B2b1n/1bN2Nkp/5N1P/r1r4P/3n2P1/1n1K1Q1Q b - - 0 1 illegal: Other
1kr1Q1n1/Q5NN/1Pb1Rp2/3Q2n1/N3rNB1/B3pp1p/b2RPPN1/b2K4 b - - 0 2 illegal: Other
1Rn1B3/1p1bp3/2QB1r1B/1B1P3k/1P3b1p/K3PR1N/Q3QnpN/5rrB b - - 1 2 illegal: No possible last move, all moves rejected
7B/pB3kq1/2NN1r1R/qppP1p1K/qP1B4/1Q2rPNb/Q4B1B/b4R2 b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 g4 Rh7 gxh5 Rh8 a5 Nd7 e4 Nb6 axb6 Kd7 d6 Kc6 d7 Kc5 Be2 Kd6 Bf1 Kc6 d4 Kd6 d5 Ke5 d6 Nf6 Be3 Ke6 Bc1 Nd5 exd5+ Kf6 Ke2 c5 Kf3 g5 Kg4 e5 b4 e4 h4 e3 f3 e2 h6 e1Q b7 Rb8 h7 Qee8 h5 Qa5 h6 Qa2 Na3 Qf2 Bh3 Qfe1 Ne2 Qg3+ Kh5 g4 d8Q+ Be7 d7 Qd6 Qb3 g3 Be3 g2 Bf2 g1Q Ng3 Qd1 Qa5 Qg8 d8N Qe6 Nc4 Qb6 Nd6 Qg7 Nc6 Rf8 Qaa2 Qa5 h8B Be6 h7 Rbe8 b8B Bf5 Qc4 Qda4 Raf1 Bd8 Qcc2 Re3 Qcb3 Bc8 Bd7 Bc7 Be8 Bh3 Bd7 Bd8 Bc8 Be7 Bb7 Bd8 Ne5 Ke7 Bc7 f5 Bb8 Rf7 Nc6+ Kf8 Rh2 Bf6 Rhh1 Ba1 Rh2 Qg8 Bd4 Qg7 h8B Rf6 Rhh1 Rc3 Re1 Rd3 Rhf1 Rc3 Re6 Re3 Bc7 Rf7 Rh6 Rf6 Bb8 Re8 Nh1 Rg6 Nc8 Re3 Bh2 Rf6 Ng3 Kf7 Nd6+
K7/B3bQq1/N2P3R/rp3BRp/2N1Q1N1/2r1pp1P/1rb2Pk1/QrQQ4 b - - 0 1 legal: proof: d4 a5 b4 d5 bxa5 Kd7 e4 Nh6 c4 Na6 cxd5 Ng8 d6 Kc6 d7 Nb8 d5+ Kd6 g4 f5 Qc2 f4 Qd2 Nh6 Qd1 Nf5 gxf5 Ke5 Bh3 Kf6 Bf1 Na6 d6 Nb4 Bd2 Nd5 exd5 Kf7 Be3 Kg8 Bc1 Kf7 Kd2 Kf6 Kc3 Ke5 Kb4 Ke4 Kc5 b5 Kc6 e5 a4 g5 a6 h6 f6 g4 f7 g3 a7 g2 a5 Bg7 f8Q Qe7 d8N Ba6 d7 Qh4 d6 Qh3 Be3 Qh5 Ne6 Qh3 d8Q Qg4 Nf3 g1R Na3 Bc8 a6 Bf6 Bh3 Be7 Nc4 Qg7 Qf7 Re8 Ra4 Bd7+ Kb7 c5 Nc7 Bf5 Qc8 Rf1 Rg1 h5 Rg6 Re1 Rh6 Re2 Bg4 Rb2 h3 Rd8 Nh2 Rd7 Na5+ c4 Ra3 c3 Nc4 c2 Bc5 c1R Rg3 Bh7 Be6 f3 Rg5 Rcb1 Ng4 Bf5 Nd2+ Kd3 Nc4+ Kc3 Bb6 Bc2 Bf5 e4 Qcg8 Rf8 a8Q e3 a7 Rc8 Qh7 Rdd8 Na6 Rc5 Qc8 Rc6 a8Q Rd7+ Kb8 Ra7 Nc7 Ra5 Na6 Ra3 Nce5 Qg8 Bd7 Bd3 Nc7 Qg7 Qe4 Ra4 Bf5 Rcc4 Qad5 Ra5 Na6 Rc7 Qda4 Kd2 Ba7 Ke1 Qa1 Kf1 Ka8 Kg2 Qb3 Rcc1 Qd1 Rcc2 Qc3 Rcc1 Qcd2 Rc3 Q2c1 Bc2 Nc4
6N1/br2Bk2/KNN1P1p1/Q1pn2pp/5N2/2qrQ2P/1Pbp2B1/R2BN2R b - - 0 1 illegal: Other
1Qn5/B1Pp1p1p/3BB3/r1R3rp/2Q2PbK/4k2P/QB1nRp2/1NBq3N b - - 0 2 illegal: Other
2B1b3/BnBP4/1Rp1QR1r/1p5Q/1KP2Npp/P2kp3/1Q1BN3/q1B1br2 b - - 0 1 legal: proof: g4 a5 e4 g5 b4 f5 bxa5 d5 gxf5 Nc6 exd5 Ne5 h4 g4 Qe2 Nf7 Qd1 Ng5 hxg5 Bh6 Bc4 Bg7 Bf1 Bf8 d4 Kd7 Kd2 Kd6 Kc3 h5 f4 e5 f6 b6 f5 h4 a6 c6 g6 e4 a7 e3 a3 Qd7 g7 Qb7 f7 Qc7 f6 Ba6 Kb4 Re8 a8Q Rb8 Nh3 Be7 f8B Bc4 f7 Rd8 Qb8 Ba6 Nc3 Rh6 Ne2 Bc8 Nhf4 Rg6 Rb1 Nf6 g8Q Kd7+ d6 Rg7 d5 Re8 Qd4 Nh7 Qe5 Nf6 Qh5 Rh7 Bg7 Rd8 f8B Ne4 Bc3 Nc5 B3d2 Rh6 Bg7 Rf8 Bd4 Nb7 Qe6+ Kd8 c4 Bf6 d7 Qe5 Bc5 Qa1 Rh2 Be5 Rf2 Bf6 Bg2 Rf7 Be4 Bc3+ Ka4 Bb4 Bf5 Bc3 Qbe5 Bb4 Qb2 Kc7 Bd4 Bc3 Qe4 Kd6 d8B Bd7 Be6 Be8 Bc8 Rf8 Qeg6+ Rf6 Bc7+ Ke7 Qg8 Rf5 Bc5+ Kf6 d6 Ke5 d7+ Ke4 Qe6+ Be5 Ng2 Kd3 Kb4 Rf8 Rf6 Bg3 B5d6 Be1 Bb8 Nc5 Bdc7 Nb7 Ba7 Rf7 Rg6 Rf4 Rf6 Rf1 Qb3+ Qc3+ Ka4 Bg6 Qbb5 Be8 Ngf4+ Kc2 Qbe5 Qa1 Rb5 Na5 Kb4 Nb7 Ra5 b5 Ra6 Rf3 Rb6 Rf1 Nh3 Kd3 Qd4+ Kc2 Qb2+ Kd3 Nhf4+
2qn4/2P2p1r/QBp1rNR1/2pp2k1/4Q3/3Rp1bb/QP1N1PQ1/KB1QR3 b - - 0 1 illegal: Other
K2B4/p2Bpb1Q/5pQN/2Q2nNq/P3NpRQ/1kp1QP2/1P1r1qR1/4n3 b - - 0 1 illegal: Other
R4Rr1/qR1pp2B/QQ2N2p/p1BPpP2/KB1n4/3R4/bq2k2P/2n2N1R b - - 0 1 illegal: Other
2B2qQ1/PN2B3/1RbQNp1p/K1n1bb1n/5P2/1Br2rR1/4r2P/BNk3nB b - - 0 1 illegal: No proof kernel
1n2rN2/3BP3/QK1pbp2/7r/1k3QRN/2nPQPBn/3Q1Q1q/bb1Rb2B b - - 0 1 illegal: No possible last move, all moves rejected
nNB3K1/NBP2p1n/2b1r1B1/Q4P2/q2rp1R1/1BR1P3/1QrBk1q1/2br3R b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 h4 Nb8 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Kd2 h5 Ke3 a5 Kd4 d5 Ke5 Kd7 g4 h4 c4 a4 b4 d4 f4 h3 c6+ Kc7 c5 d3 e3 h2 g6 e6 g7 d2 g5 a3 g6 a2 Qe1 d1R Nf3 Qe8 b6+ Kd8 c7+ Ke7 c6 Rd3 b5 Nh6 g8B Rda3 g7 Qd8 b7 Qd2 b6 Qd3 Qa5 Qd7 Ba6 Ra4 Nc3 Rd4 Bh7 Ng8 Nb5 Nf6 Bc2 Rh6 g8B Nh7 f5 Rg6 Rb1 a1R Bb3 Rh6 Rg1 h1Q Na7 Qg2 Bd2 Qe8 Rh1 Bd7 Rbg1 Rd1 c8B Rh2 c7 Bc6 Ng5 Rh6 Ne4 Rg6 Nc5 Rf6 Bd3 Bg7 Be4 Nd7+ Kf4 Kd6 b8R Rg6 b7 Nb6 Na6 Bf8 Rh4 Bg7 Rgh1 Rh6 Rg4 Qd7 Rg3 e5+ Kg4 Rf6 Kh5 Re6 Rg4 Bf6 Bed5 e4 Kh6 Be7+ Kg7 Ke5 Bc3 Ba3 Bd2 Bc1 Kh8 Qe7 Kg7 Qa3 Kh8 Qa4 Kg7 Nf6 Bh7 Kd6 Bg6 Nh7 Kg8 Ke5 Bd7 Kf6 Rd8 Rb8 Bc8 Na8 Rf4 Kg5 Rd6 Be8 Rc6 Bd7 Rc3 Bc6 Rff1 Kg4 Rf4+ Kg3 Rg4+ Kf3 Nb5 Nb6 Na7 Ra8 b8Q Ke2 Qb7 Rb8 Rg5 Na8 Rg4 Qa1 Qbb6 Qa4 Qbb4 Rb5 Nb8 Rc5 Qa3 Rcc4 Qb2 Rc5 Rd3 Rc2 Rc3 Bd7 Bdb7 Be8 Na6 Bc6 Nb8
2bN1r2/Q1P4b/pqRK3b/2QNQ1p1/BQRN2P1/P1Q1B2n/3n3k/q4br1 b - - 0 1 illegal: No proof kernel
R2B2B1/1N4bp/4b2P/Qb2QN1p/1Q4pK/QPrN3n/3qk1P1/nQ1r2Rn b - - 0 1 illegal: Other
1Rn5/r2QR2b/pN5n/P1p3N1/N2rP1k1/bBPQ1n1R/1p4qB/1KbN3N b - - 0 1 illegal: No proof kernel
R1Q1R1qN/1N3QNn/kN1Np3/4b2n/1r1rPp2/p1B1Q3/P1P2KB1/nb2r3 b - - 0 1 illegal: No proof kernel
Q7/bq2B1BQ/BkRNp2N/1pn1KNn1/Pr5b/pPrN4/2N1P2R/3b1n2 b - - 0 1 illegal: No proof kernel
r5rB/1q1n2rk/2BR4/R2NB1p1/n1b1KP1p/1NQ1NpP1/1N4QP/b1q1N3 b - - 0 1 illegal: No proof kernel
2rkqQN1/K1n1PB1n/N2q3N/b1R2p2/4bBN1/1p4rp/5P1P/R1Q2qRN b - - 0 1 illegal: No possible last move, all moves rejected
1Qqq3N/1p1nRqB1/4r1pQ/1B2RBP1/PP1pn1R1/K6B/2r1N1b1/1k1Bb3 b - - 0 1 illegal: No proof kernel
R4n1k/pBNQ1p1P/b1NrN2K/nQ1p4/PN1Pbr2/B2q2N1/2q5/4b1QR b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 c5 gxh5 Qc7 b4 Qa5 bxc5 Qd8 Kf2 d5 Kf3 g5 d4 b5 a4 b4 h4 b3 c4 b2 e4 g4+ Kf4 g3 c6 g2 e6 Ba3 h6 Kf8 c7 Rh7 e7+ Ke8 Kg5 Bc5 e5 Bd7 c8Q Bb6 h5 Bf5 c5 Be4 c6 Na6 c7 Bd3 Nc3 b1B Ba3 Bc5 Nge2 g1Q+ Ng3 Bbc2 Rb1 Rh8 h7 Bb5 h6 Be4 Na2 Bed3 Nb4 Nb8 Bh3 Qh2 Qg1 Nf6 Qb7 Bd6 c8Q Ba6 Qb5+ Nc6 Qcb7 Qb6 Bc8 Qf2 Qc7 Qa5 Bb7 Nd7 Kh5 Rg8 h8N Rd8 h7 Rg4 Kh6 Rf4 Ng6 Be4 Qc8 Nf8 Qe6 Rd7 Rc1 Nd8 Rc8 Qc2 Ra8 Qac7 Qf5 Qc8 Qe6 Nc6 Qf5 Rd8 Qg4 Qf5 Qh3 Kd7 e8N Ke6 Ne7 Na5 Nec6 Be7 Qg4 Bh4 Qh3 Rd6 Ng7+ Kd7+ Ne6 Qd3 Nh5 Be1 Ng3 Ng6 Ned8 Ke8 e6 Kf8 e7+ Ke8 Qb6 Qc8 Ne6 Nf8 Nd8 Qcc2 Qc5 Kd7 e8N Ke7 Nc7 Kf6 Ndc6 Qg2 Ng5 Qh2 Qb5 Qhc2 Kh5 Kg7 Qd7 Kh8 Nge6 Nc4 Kg5 Na5 Kh6
3b1B2/qp1Bq3/r3R2R/pPQpK3/n1r1P3/P1NNRq1R/1Nbn3k/Q2R4 b - - 0 1 illegal: No possible last move, all moves rejected
nQ2B1rr/1p2b1R1/qR3NBB/q1N1p1r1/1P1Q2NK/4PP1n/2p1k3/N4bN1 b - - 0 1 illegal: No possible last move
3NNK2/4Bn2/q3Qp2/ppq2rR1/1PBPB1nR/1B1b1k1B/3b1PN1/1Q3rn1 b - - 0 1 illegal: No possible last move, all moves rejected
BQN4R/p1Q3nb/R2B1b2/Nnp2p1n/1nB2P2/RRP1K3/R1Pr4/q3kr2 b - - 0 1 illegal: No proof kernel
R2nk1B1/Q1q1Q2p/NbbB4/p1Rp2rb/4RR2/3PN1BP/Pn3R2/2K1b2r b - - 0 3 illegal: No possible last move, all moves rejected
1QBRNBkr/4Pr1p/3p1q2/b3pp1P/4PQB1/RB2nn2/6bN/K1B3Qn b - - 0 1 illegal: No proof kernel
4N3/4p1Nq/RRR2p2/Bbp5/3Pkr2/nQQR1P1p/2NbKR1P/1qrBn3 b - - 0 1 illegal: No possible last move, all moves rejected
R3qQ2/1p2RpNR/1B1r1B1p/b1prNP1Q/3q2nR/5bk1/1PB3P1/3R1n1K b - - 0 1 illegal: No proof kernel
1BrQb1bR/1K3p2/1p4B1/3p1PN1/b1n1p2N/1BQ3BB/nPRqP3/1kb2N2 b - - 0 1 illegal: Other
2Q5/1nB1Kp2/2P2rp1/4pPBR/2r1Bb2/p1pR3Q/PBb2NqN/kBQ2n2 b - - 0 1 illegal: No possible last move
RK2BNr1/2pp1nk1/2R2ppB/3nB1b1/2R2B2/rPPP1N1b/1q1B2p1/1Q5Q b - - 0 1 illegal: Other
2BRR1nB/5b2/PnQn1p1k/2K3n1/r4B2/2n1N2P/pPB4N/3BB1B1 b - - 0 1 illegal: No proof kernel
br2QR1r/1P2k1rB/1q2b2R/1N5P/1KRNR1bb/3b2R1/2R3P1/1n1R2B1 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 g5 c4 b5 f3 g4 fxg4 b4 gxh5 Nc6 h6 Na7 Qb3 Bb7 Qd1 Nb5 cxb5 Bc8 Kd2 c5 e4 f5 h4 d5 a4 f4 b6 c4 h7 d4 h5 b3 e6 b2 e5 d3 Kc3 f3 a6 f2 a7 d2 e7 Qd7 a5 Qc7 a6 Qd7 Ra4 Nh6 Ne2 Qc7 Na3 b1B Nd4 Kf7 e8R Qd6 e6+ Kf6 e7 Nf7 Bd3 f1B Qe2 d1B Nab5 Ne5 Be3 Qd8 Bg1 Nf3 Kb4 Rb8 a8R c3 a7 c2 Qe4 Bh6 Rg8 c1R e8R Rc7 Rg3 Rg7 Qe1 Bc1 Re4 Nd2 Ra2 Bb3 Rc2 Bbe6 Rc4 Ke7 Bc2 Re8 h8R Bd3 Rh6 Ba2 Qe2 Nb1 Qe1 Bg5 Qe3 Bd7 Qe1 Rb7 Rac8 Rb8 a8R Rh8 Qe3 Bb3 Ra2 Qc7 Rf8 Bh4 Rb2 Bc6 Qe2 Ba8 b7 Na3 Bb1 Bd1 Rbc2 Qb6 Bh2 Qc7 Rhf1 Qd8 Bg1 Qb6 Qe3 Bf3 Rd1 Bg4 Re5 Bh7 Qe4 Kd7 Qe2 Bf7 Rcd2 Bhf5 Bd3 Nb1 Rdc2 Bh7 Qe4 Bd5 Qg6 Bde6 Ree1 Ke7 Be4 Bd5 Qc6 Bhf5 Ree2 Bfe6 Bh7 Be4 Qc8 Bd3 Re4 Bf5 Qc6 Bg4 Qe8+
3k1K2/3p4/NBR1q2P/1bNnb2R/n1bPR1Qq/2R3rP/B3n3/3R2RR b - - 0 1 legal: proof: f4 c5 b4 a5 bxc5 h5 g4 e5 fxe5 b5 gxh5 Ra6 a4 Re6 axb5 Ra6 bxa6 Rh7 Nc3 Rh6 Nb1 Rh8 Kf2 g5 Ke3 f5 Kd4 f4 Kd5 f3 c4 a4 e4 f2 h6 a3 c6 a2 a7 g4 a8R g3 c7 g2 c5 Nc6 h3 Bb7 c8R Bd6 e6 Bg3 e7 Bd6 e5 Bb8 Na3 Rh7 Ra5 Ba8 Nc2 Rh8 Nf3 g1Q Bc4 f1B Nfd4 Qg6 Ne6 Be2 Nb4 Bc7 Na6 Bf1 Qg4 Nd4+ c6 Qf6 Nec5 Kf7 e8R Qg6 e6+ Kf6 e7 Ne2 d4 Rh7 Bd2 Rg7 Rd1 a1N Ba2 Nb3 Rb5 Bb7 Ba5 Be5 Bb6 Qf5 Qf3 Rg3 Qg4 Qg5 Rc7 Qh4 Rg1 Qa8 Rec8 Qb8 e8R Ba8 Rb7 Qa7 c7 Ne7+ Ke4 Nd5 Ra5 Kf7 Kf5 Qb8 Ra7 Bc6 Rb7 Bf6 Re4 Be5 Rb5 Ke7 Kg6 Qa8 Kh7 Qa7 Kg8 Qa8 Ra5 Bb5 Ra7 Qc6 Rh1 Kf6 Kf8 Qe6 Rb7 Bc4 Rb5 Nbc1 Rb1 Nd3 Rbc1 Nb2 Rc3 Bg2 Rd8 Bf1 c8R Na4 Rc6 Bb5 Ra8 Nc1 Re8 Bfc4 Re7 Ne2 Rg7 Qh5 Rg5 Qh4 Rh5 Qd6+ Kg8 Ke7 Rbc7 Kd8 Rdg1 Qg6+ Kf8 Qe6 Rd3 Ne3 Rdd1 Nd5 Nd3 Bb3 Rc3 B3c4 Ndc5 Bf4 Rc6+ Bc7 Ba7 Be5 Bb6+
K1NR4/1Rb1BkB1/1B2nqP1/n1P5/4bqBP/nQN4B/1B2p3/Bb4q1 b - - 0 1 legal: proof: e4 b5 a4 c5 axb5 h5 d4 f5 exf5 a6 dxc5 h4 g3 h3 Be3 g5 Ra4 a5 Ra1 g4 Bg5 Rh4 gxh4 g3 Bd2 g2 Bc1 Ra6 Be3 Rg6 Bc1 Rg3 hxg3 Qc7 Qe2 Qb6 Qd1 Qd8 Kd2 d5 Kd3 e5 f4 e4+ Kd4 e3 c4 h2 b4 a4 g4 a3 c6 a2 c7 e2 f6 Qd6 b6 Bf5 c8B Bd3 b7 Bh6 b5 Bg7 b6 Qe6 Kc5 d4 g5 Qg4 f7+ Kf8 f5 Nc6 b8B Bc2 b7 d3 Kb6 d2 c5 Bf6 Nf3 g1Q Bb2 Be5 Nd4 Nd8 Ka7 Nh6 Bc7 Qf3 b8B Ba4 Nc6 Ne6 Ne7 Ng4 Qb3 d1N Bb6 Be8 Bh3 Qff2 Nc3 Ba4 Rb1 a1Q Ka8 Nde3 Bd7 Nc2 Nc8 Bf4 Be5 Nge3 Bf6 Bb8 Be7+ Kg7 f8B+ Kf7 f6 Bc7 Bg7 Qf4 Rd1 Nc4 Rd2 Qgg4 Rb1 h1B+ Rd5 Be4 Bh8 Kg6 f7 Qg1 f8B Na5 Bfg7 Na3 Bg4 Kf7 Bh3 Nf8 Bdf5 Ne6 Bfg4 Bc2 Rd8 Bg6 Rbd1 Bb1 R1d7 Bb5 Bgf6 B5d3 Bhg7 Bb8 Be5 Be4+ Rb7 Bc7 Nb5 Qa2 Ba1 Qad2 Beb2 Qdd4 Nc3 Qdf6 g6+
2n1K3/3NBn1R/k1NPR1r1/R1P1rpQ1/2R2R1q/1P4R1/R2qB2q/1r1n4 b - - 0 1 illegal: No possible last move, all moves rejected
1kb1r1Bq/nBB4n/K2BP3/3R2nB/3Q2P1/1PNp3B/2B1Np2/n2R2r1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 d5 Kc3 Kd7 Kb4 Kc7 Ka5 h5 g4 f5 c4 d4 e4 h4 c6 h3 g6 h2 b3 f4 e6 a6 e5 f3 g7 f2 e7 Qd5 e8B Qc5 Bh5 Nf6 g8B Qd6 b6+ Kd8 b7 Kc7 c5 Bh6 Bd2 Bf4 Nc3 Qd8 Bh3 Nh7 Nge2 Qe8 Rg1 h1N Rg3 Qf8 Rd3 Ng3 Be1 Ne4 Bd2 Kd8 c7+ Kd7 Kb6 Nc6 b8B a5 Rc1 Na7 c6+ Ke7 Be1 a4 Qd2 a3 Rd1 a2 e6 Ba6 c8B Kd8 Bd6 a1N Bb7 Neg5 Ka5 Rb8 Ba8 Kc8 c7 Bg3 Be4 Bh2 Beg6 Kb7 Qb2 Re8 c8B+ Ka8 R3d2 Qg7 Bc2 Bg3 Ba3 Kb8 Bb7 Qf8 Bh1 Bc8 Bb7 Bf4 Ka6 Bc7 Bd6 Qh6 Rd3 Qf8 Rf3 d3 Rf5 Nf6 Rb5 Rh6 Rd5 Nfh7 Na4 Qg7 Qd4 Qe5 Ba5 Qh8 Bhf7 Rh5 Nac3 Rh4 Bg2 Rh3 Bh5 Rh1 Bh3 Rg1 Baxc7#
1q1bNBRr/3qr3/5R1q/1bR1n1k1/P2NR1B1/R1n2R2/2PrRPK1/2Qr4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 a4 Kf7 h4 Kf6 a6 g5 a7 d5 h6 b5 c6 e5 c7 d4 h5 b4 h7 b3 h6 d3 Ra3 g4 Ne2 b2 Nbc3 b1R Bh3 e4 Kf1 d2 Nb5 g3 Kg2 e3 Re1 Be7 Bg4 Ba6 c8R Kg5 f6 Nd7 f7 Ngf6 f8R Ne4 Ned4 e2 Rff3 Ne5 Nc7 Bb5 Ne8 Nc3 Rc5 Qb8 Bb2 Bd8 Qc1 Kh4 Rf6 d1Q Ba1 Qd2 Rf3 Kg5 Bb2 Rf8 h8R Qe3 Rh7 Rh8 Rhf7 Ra1 h7 Rb1 Rd1 e1R R7f6 Re2 Rg1 Rd2 Re1 Qf4 Re2 Ra1 Kh3 g2 Re4 g1Q Re2 Qd1 Kg2 Rf8 h8R Rf7 Rh1 Re7 Rhe1 Kh4 Re4 Qh6 R1e2 Kg5 Ra2 Qb7 Ba3 Rc8 a8R Qd7 Qb2 Qb1 Qc1 Qb4 Qb2 Rad1 Qc1 Qa5 Bb4 Qaa7 Ra3 Qb8 Rcc6 Rh7 Bf8 Rh8 Rc5 Rc6 Nf5 Re6 Nd4 Re7 Raa6 Bc7 Rg6+ Kh4 Rg8 Bd8 Bg7 Kg5 Raf6 Qh5 Bf8+ Qg6 Bg7 Qh6 Bf8+
1N6/2n1K1RB/R1b1RBP1/R1nP2RN/r1q1k3/3nr3/1p2qP2/2QRb1Rq b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d6 Kf7 Ke2 e5 Kf3 b5 Kg4 c5 a4 c4 d4 c3 d7 b4 f6 Ke6 f7 Kd5 Kf5 h5 g4 c2 a6 b3 a7 h4 a5 h3 a6 b2 Na3 e4 Ne2 h2 Nb5 e3 Ng3 e2 Rg1 Kc6 d5+ Kc5 Ke6 e1N Nc7 h1Q Bd3 Rh2 Nh5 Kd4 Bh7+ Nd3 Bf4 c1Q Be5+ Kc4 Qf1 Bh6 f8R Qd1 Rf5 Qb3 Bc3 Ne7 Bf6 Bb7 Qd1 Qe8 d8R Ne1 Rd6 Nd7 Qb1 Rd8 a8R Rh4 a7 Nd3 Na6 Bc6 Nb8 Qc3 Re5 Kd4 Qc2 Qc5 Rad1 Bf8 Qc1 Nc8+ Kf5 Be7 Ke6 Ncb6 g6 Bb7 g7 Bc6 g8R Rh3 g5 Qc4 Na6 Rg3 Rb8 Na8 g6 Rh3 Rb5 Nc7+ Kf5 Rb8 Ra5 Rb4 a8R Ra4 Nb8 Bf8 R8a6 Bh6 Qc2 Bd2 Rg7 N7c5 Qc1 Bc3 Bd8 Rg3 Kf6 Be1 Rg5 Qe2 Kf7 Rh3 Bf6+ Ke4 Ke7 Re3 Re6+
1rB2rnR/7p/P2rN2B/B1bB3P/k6P/1b2B1bK/1q2n1QR/2NBBq2 b - - 0 1 illegal: No proof kernel
1k1bB2B/bNpBb3/R1b1B2P/1n5K/N1R1Q3/1r1B1P2/1qBP3B/nr5r b - - 0 1 illegal: No proof kernel
3bb1B1/1n1Nb3/1BBqB1b1/1Bb1rPqp/2Bk3P/QPN5/4R1nR/6BK b - - 0 1 legal: proof: f4 c5 d4 a5 dxc5 b5 a4 f5 axb5 e5 fxe5 f4 g4 Ra6 Be3 Rf6 Bc1 Rf5 gxf5 Qc7 Nd2 Qb6 Nb1 Qd8 Kf2 Ke7 Kg2 d5 c4 h5 e4 g5 h4 g4 b6 d4 b3 a4 e6 Kf6 b7 Ke5 c6 g3 c7 d3 e7 d2 e8B a3 c5 a2 c6 Qg5 Bc4 Kd4 e5 Be7 e6 Nh6 Rh2 f3+ Kh1 f2 Nc3 Nd7 b8B f1B Ba7+ Nc5 Bb6 Bd7 c8B Ng4 c7 Ne3 Qc2 d1Q Qb2 Bb5 Qa3 Ng2 Bc6 Re8 Rb1 a1B Rb2 Bd8 e7 Ba4 Bg8 Bc4 Ba6 Bf7 c8B Bg6 Bce6 Qd3 Re2 Bb5 Bc7 Nb7 Ba5 Ba4 Bac4 Bb2 Bf4 Bc1 Bb8 Bf4 Bac7 Bd6 Bb6+ Bc5 B8a7 Qdd2 Bc8 Qdf4 Bc8e6 Qd6 B6b5 Nf4 Nd5 Qb8 Ba5 Bcb6 Ba6 Bd7 Bef7 Bc6 Rd2+ Ke4 Ne2 Bd4 Nb6 Bf6 Bab5 Qd6 Nc3+ Ke5+ Kg1 g2 Rc2 Nd5 Re2+ Ne3 Rh3 Bd7 Kh2 g1B+ Kh1 Bf2 Rh2 Bc6+ Ne4 Ng2 Nc3+ Be3 Bfd5 Rf8 e8B Bd7 Bef7 Re8 Bdc6 Re7 Ncd5 Be8 Nd7+ Ke4 Bc5 Re5 Bab6 Bfe7 Be6 Kf3 Bb4 Bg1 Bd2 Bc5 Be3 Ke4 Bf2+ Ne3 Bg1 Kd4 Ref2 Ng2 Nc3 Re4 Rc2+ Re3 Rf2 Re5 Re2+
N1R3Qr/1b1N2p1/1n4pk/1Nr3P1/B1r1N2n/PbP3N1/Nb2RN2/1qB1K3 b - - 0 1 illegal: Other
k3r1n1/BpPNr1Rq/Q1R2Pq1/1b3RR1/1KR1B2n/1pN5/bP3nR1/4R3 b - - 0 1 illegal: Other
1B1B4/1k1K1p1q/1R2QP2/RBB1r3/rq2n2P/NB1N1q1p/nqBPb3/6B1 b - - 0 1 illegal: No proof kernel
1BqbB2R/1P1r2k1/Q2R3n/2Pp1b1p/rN1B3P/2B1pB2/2N1K1nB/5nB1 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 Nc6 f4 Ba6 g5 Na5 f6 Bc8 f5 Nc6 g6 Nb8 Kf2 Qa5 Ke2 Qa2 Ke1 Qf7 gxf7+ Kd8 b4 g5 c4 e5 c6 d5 c5 a5 b6 h6 c7+ Kd7 b7 g4 b5 a4 b6 e4 Nh3 g3 Bg2 a3 Qa4+ Nc6 b8B a2 b7 Ra5 Ke2 Ne7 Be3 Bg7 f8B Ke8 f7+ Kd7 f6 Ke6 Bg1 e3 Na3 Nf5 Nf2 Nh4 Nd3 Ne5 Rf1 a1N Nb4 Nb3 Bd6 Ng4 f8B Kf7 Nac2 Rh7 Bf3 Bf5 c8B g2 Bd7 Nd2 Be8+ Kg8 Qb5 Ra4 f7+ Kh8 h3 Bf6 Bdh2 Bd8 Qa6 Rg7 Rf2 Nf1 Bfd6 Kh7 f8B Rd7 Bg7 Kg8 Bc3 h5 Bde5 Nh6 Bed4 Ng6 h4 Nf4+ Kd1 Nd3 Ke2 Ne1 Bhc7 Kf8 Rh3 Kg8 Rg3+ Kh7 Rg7+ Kh8 Rh7+ Kg8 Bgh2 g1Q Bcf4 Qg5 Bg1 Ng2 Bfh2 Qf6 Rh8+ Kg7 Bg4 Qe5 Rf4 Qf6 Bf3 Qe5 Re4 Qf6 Re6 Qe5 Rf6 Qc7 Bde5 Qc6 Bed4 Qc8 Rd6+
3K1N1B/nP1B1k2/pNrQRpR1/2p3P1/3R4/1pPbb3/1R2r1qn/R1R4R b - - 0 1 illegal: No proof kernel
r1n5/p1bb2B1/2BqBB2/8/2NpP1PB/2Ppr1RN/2pRQ1nk/4BK1B b - - 0 1 illegal: Other
K3R2b/3r4/BPpb3B/k1p1R3/Bpb2BB1/1nP1q1QN/1P2r1Bb/2N2B1n b - - 0 1 illegal: Other
5nQ1/bb2N2R/3q2nk/Q3PR2/Kn3Pnr/1PB4B/1Q2N2R/2n2QN1 b - - 0 1 legal: proof: g4 d5 c4 a5 cxd5 h5 gxh5 b5 Bg2 b4 Bf1 b3 axb3 a4 e4 a3 bxa3 f5 exf5 e5 d3 e4 d4 Ra6 Nh3 Re6 Ng1 Re5 dxe5 Rh6 Ra2 Rh7 Ra1 Rh8 Kd2 Kf7 Kc3 c5 h4 g5 f4 Kg7 f6+ Kh7 d6 e3 a4 c4 Kb4 e2 f7 e1N a5 c3 a6 c2 h6 g4 h5 g3 a7 g2 a8Q Ne7 d7 Nd3+ Ka4 Qe8 Ra2 Nf5 Bd2 c1N Nc3 Ng7 Qa5 Nc6 d8Q Bf5 Nce2 Bc5 f8R Qd7 Bc3 Be4 Rf5 Nf2 Qf8 Bb6 Qa3 Ng4 Qb2 Ne6 Qd3 Nf8 Qf3 Kg8 h7+ Kg7 h6+ Kg6 Rhh5 Qd6 Qh3 Nb4 Qd3 Rg8 h8Q Ba7 h7 Rg7 Qg8 Bb7 Qgd5 Rg8 h8N+ Kg7 Ng6 Rh8 Rh1 Rh4 Ne7 Kh7 Qg8+ Kh6 Nf3 g1N Bh3 Bd4 Qd1 Bf2 Qf1 Ba7 Nfd4 Nf3 Ng1 Rh5 Nde2 Nh4 Rh2 Nhg6 Ra1 Ncd3 Rd1 Nc1 Rd5 Rh4 Rb5 Qd3 Rb6 Qd2 Rbf6 Qd5 Rf7 Qd6 Rh7+
5N1q/3Q1Qpr/N2N1PqR/RP1r2bQ/B1k5/4P3/5B1K/NRb1nb2 b - - 0 1 legal: proof: b4 e5 a4 d5 c4 f5 cxd5 a5 bxa5 b5 axb5 h5 g4 Nd7 gxh5 Ndf6 e4 Ng4 exf5 e4 Ke2 e3 Kd3 e2 Kc2 Ne3+ dxe3 Kd7 Kd2 Ke8 Ke1 Kf7 h4 c5 f4 c4 Kf2 e1B+ Kg2 c3 d6 c2 h6 Qb6 d7 Qa6 d8Q Be6 h7 Bd2 f6 Ra7 f5 Re7 h5 Qc8 h6 Qc7 a6 Qc3 a7 Qc6+ Qd5 Qc5 a8N Ba5 Nc3 Ra7 Bd3 Qe7 Ne4 Rd7 Bd2 c1Q Be1 Bd8 Ra5 Rc7 Bc2 Qca3 Ba4 Qd3 Ne2 Qe8 Bf2 Rd7 Nc7 Ne7 Kh2 Nc6 Nc1 Nb4 Nb3 Nc2 Na1 Ba3 Na6 Bc1 Rf1 Ne1 Nd6+ Kf8 f7 Ke7 Q5f3 Bc4 f8N Qb1 Rh1 Bf1 Qfd5 Kf6 Qf7+ Ke5 Qg4 Bg5 f6 Rd8 Qgd7 Qg6 Rg1 Rc8 Rh1 Rc5 Rg1 Rd5 Rh1 Rg8 h8Q Qd8 h7 Qc8 Nb7 Ke4 Nd6+ Kd3 Ne6 Rd8 Qhe8 Qa8 h8R Rc8 Rh6 Rd8 Qee7 Rh8 Nf8 Rh7 Qh3 Qe8 Qh5 Kc3 Qd7 Qa8 Ne6 Qh8 Nf8 Kd3 Rg1 Kc3 Rg4 Kd3 Rb4 Kc3 Rb1 Kd3 Nc8 Kc4 Nd6+
2N2rR1/bb1N1B2/5b2/BP1rP1p1/1R1Nk2r/R7/1P1KR1b1/n1B1Q1Q1 b - - 0 1 legal: proof: c4 b5 h4 g5 f4 f5 g4 d5 cxd5 e5 gxf5 b4 fxe5 b3 h5 Nc6 axb3 Qf6 b4 Nce7 b5 Ng6 hxg6 Qd8 d4 Kd7 e4 a5 d6 h5 g7 c5 d5 h4 f6 c4 f7 c3 Nf3 c2 Ra3 a4 Nd4 h3 Rh2 Ne7 g8R Bg7 Bc4 Bb7 Rf2 h2 Nc3 h1B Kd2 Bf6 Qg1 Rh4 Ba2 Nc6 f8N+ Ke8 e6 Qe7 Bb3 Na5 d7+ Kd8 Bc4 Kc7 d8R Bg2 Nd7 Kd6 Rdf8 Qe8 e7 Qh5 e8Q Nb3+ Kd3 Na1 Kd2 Be7 R8f4 Bf6 Na2 Qf3 Nb4 Qg4 Nbc6 Qe2+ Kc3 Rc8 Na7 Rd8 Nf8 Kc5 d6 Rc8 d7 Ra8 Rb3 a3 d8B a2 Ra3 Kd6 Be6 Ke5 Ba5 Rd8 Nc8 Rd5 Be3 c1B Qe7 Qg4 Bf7+ Qe6 Rg4 Bd2+ Kd3 Bb4 Ke2 Bc5 Bc1 Ba7 Qb4 Qe8 Kd2 Qe6 Rgg3 Qg4 Rgb3 Qf3 Nd7+ Kf4 e5 Ke4 Qc4 Qh5 Qcf1 Qe2+ Kc3 Nc2 Qe1 a1R Rb4 Ra2 Rab3 Ra4 Ra3 Na1 Bc7 Ra6 Bd8 Re6 Ba5 Re8 Qd1 Qg4 Kd2 Rf8 Qde1+ Qe2+ Rxe2+
qR1QB3/3r1n2/N1Q1NRK1/p3kQ2/2R1N3/PqP1rP2/pnn5/4BQ2 b - - 0 1 illegal: Other
1Nkr1R2/QbpB2p1/N1Q3Rb/2R4K/2N4P/BR6/nB3pPP/6qb b - - 0 1 illegal: Other
rb1k2RQ/1q1nN1B1/2Pb3N/1Pq2nq1/1R1BBQ2/2r4P/3K1N2/r2Q1B2 b - - 0 1 legal: proof: a4 b5 e4 a5 g4 f5 exf5 c5 d4 h5 gxh5 Bb7 dxc5 Bd5 axb5 a4 Ke2 a3 Kd2 Bb3 Ke1 Ba4 b3 Ra6 bxa4 Ra8 f4 e5 c4 d5 c6 g5 a5 g4 f6 a2 c7 g3 c8N e4 c5 d4 f7+ Kd7 f5 d3 h3 e3 h6 e2 h7 g2 f6 Be7 f8Q Qb6 f7 Nc6 a6 Qb8 a7 Qg3+ Kd2 e1R Nc3 Qd6 Rb1 a1B Bb2 Nb8 Ne4 Nh6 Ne2 g1Q Bd4 Nf5 Rb4 Qg4 Qh6 Kd8 f8B Nd7 Qf4 Qg5 Nf2 Qb6 Rh2 Bd6 Ng3 Qb7 Rg2 Rg8 h8Q Re3 Bdg7 Bae5 Ne7 Bb8 Bf6 Bed6 Bd4 Re1 Nh5 Re3 Nf6 Rf3 N6g4 Rg6 Kc1 d2+ Kc2 Re6 Nh6 Re1 Rg3 Qf6 Rg8 Qg5 Qb1 Ra3 Qb3 d1Q+ Kc3 Qdf3+ Kd2 Qfd5 Qd1 Rc3 Qh7 Bbc7 Qh8 Rc8 a8B Bb8 Qf3 Ra1 Qd1 Qa7 Bb7 Qe5 Be4 Qb7 c6 Qc5 Ra4 Ba7 Rc4 Ra8 Rb4 Bab8 Bfg7+
k3b3/1QQqqrP1/K1b2N2/3NPQn1/5n2/1rB1n3/R1PbRN1B/5Q1B b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 e5 f4 c5 fxe5 c4 a4 c3 axb5 Ra6 dxc3 Ba3 c4 Bf8 c5 Ra8 Kd2 f5 Kd3 h5 Kc4 h4 g4 h3 e4 f4 g6 h2 c6 d6 a6 f3 a7 f2 b6 d5+ Kb5 d4 b7 d3 g7 d2 c7 Kd7 g5 Rh6 e6+ Kd6 e7 Bg4 e8Q Ne7 c8Q Rh3 g8N Nbc6 b8B+ Qc7 g6 Bh5 g7 Ng6 Qf5 Rb3+ Ka6 Nf4 Ra2 Nd4 Nf6 Nf3 Nh3 Ng5 Bg2 f1N Nf2 Ne3 Qec8 Kc6 Qf1 d1Q Bb2 Be8 Nc3 Bb4 Ncd5 Bd2 Bc3 Qg4 Rg1 h1B Bf3 Qh4 Rg2 Qh3 Qd8 Qe7 Bbe5 Rab8 a8Q+ R8b7 Bc7 Ne2 Bh2 Nf4 e5 Qg4 Qg6 Qge6 Qa7 Q6d7 Qa5 Rc7 Qf5 Rcb7 Nb6+ Kc7 Nbd5+ Kc8 Q7b6 Kb8 Qc6 Ka8 Qac7 Bc1 Nh3 Bd2 Re2 Bg2 Nf2 Bh1 Bg4 Be4 Bh3 Bf3 Bg2 Be4 Qb5 Bf3 Bh1 Be4 Nb4 Bc6 Nbd5 Qb4 Qc4 Qd8 Qa5 Rf7 Qcb5 Qd7 Qc7 Qbe7 Qbb7+
QNn1rqk1/2B3P1/2QR3R/4qbr1/1Q6/1b1nPK1B/q1qQ2PN/N6R b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 e5 f4 b5 fxe5 d5 a4 d4 axb5 d3 cxd3 a4 d4 Bc5 d5 Be3 Ra2 Bb6 Ra1 Ba5 bxa5 Kd7 Ra2 Ke7 Ra1 Ke8 Kf2 Kf8 d4 f5 a6 h5 e6 c5 b6 a3 b7 c4 a7 f4 g6 a2 d6 h4 d7 f3 d5 c3 e7+ Kg7 e8Q h3 d6 c2 Bf4 c1Q e3 h2 Bb5 Rh6 Qa4 Qc2+ Nd2 Ne7 Qb4 Nbc6 b8N Ne5 Bg3 Qa5 d8Q Bf5 Qc6 Rh5 d7 Rg5 Ba6 Qd5 Bc8 Qf7 Qda5 Kg8 d8R+ Qf8 Rd1 a1Q g7 Qab1 Rd6 Qba2 Bd7 Nc8 Rh6 Be6 Bf4 Bb3 Bg4 Nd3+ Kg3 f2 Kf3 f1B Bh3 Bc4 Nb3 Be6 Na1 Bb3 Ke4 Be2 Bc7 Bg4 Nf3 Bd7 Qd2 Bde6 Qab4 Bd7 Rhg1 h1Q Nh2 Bg4 Rgf1 Bf5+ Kf3 Qg1 Rf2 Qe1 Rf1 Qh4 Rh1 Qd4 Qe2 Qe5 Rd2 Nc5 Rdd6 Nd3 Qed2 Ne7 Nd7 Re8 a8Q Nc8 Nb8
4BB2/qkn2n1N/NBN5/7b/2q1PQ2/q1P1Kbq1/1rQ2R1P/N1QR2q1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 d5 dxc5 d4 a4 Qb6 axb5 Qd8 Bh6 a5 Ra2 e5 Bc4 Be7 Bc1 Bg5 Bf1 Be3 Ra4 Ra6 Ra1 Rd6 Ke2 Rd5 exd5 e4 Ke1 Bg5 Ke2 e3 Ke1 Bf4 Ke2 Bg3 Kd3 e2 Kd2 Bf4+ Kd3 Be3 fxe3 Bf5+ Kd2 Bc8 b4 Kd7 d6 g5 e4 f5 c6+ Ke8 h6 g4 h7 g3 d7+ Ke7 b6 Kd6 b5 a4 b7 Kc7 Nh3 f4 Ba3 g2 Bf8 g1Q Ra2 f3 Na3 d3 Ng5 f2 Qc1 Qe7 d8N Bf5 Ke3 Na6 b8N d2 b6+ Kc8 c7 e1Q+ Be2 d1B Ndc6 Kb7 Rb2 Nh6 c8Q+ Ka8 Qc7 Bg6 c3 Qd7 Qf4 Kb7 Nc2 a3 Na1 Nc7 Na6 f1Q+ Qf2 Rg8 h8B a2 Nh7 Bh5 Bd4 Rg5 Rc2 Rb5 Rd2 Rb2 Bdc5 Qg6 Qf4 Qh4 Bb5 Qgg1+ Rf2 Qc4 Ba4 Bdf3 Qc2 Qgg8 Rd1 Nf7 Qg5 Qe7 Bd4 Qa3 Qg1 Kc8 b7+ Kd7 b8Q Be2 Rd3 Qab4 Nb3 a1Q Nd8+ Nb5 Qgc1 Bef3 Rd1 Qg1 Qf4 Kc8 Bb6 Qhg3 Nb8 Nc7 Be8 Qa7 Ndc6 Kb7 Na6 Qa3 Na1
3k4/B2q1PN1/1N2B2B/Q3r1N1/2RnrPRr/b3P2n/r2R2K1/r1QRq3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 d4 b5 a4 e5 dxe5 f5 axb5 f4 h3 f3 gxf3 Bg4 f4 Bf3 f5 g4 Bd2 g3 Bc1 Bg4 hxg4 Qg5 Qd3 Qh4 Qd1 Qd8 b4 c5 b6 a5 b7 h5 e6 g2 e7 h4 b5 c4 d6 h3 f6 a4 b6 h2 d7+ Kf7 e8N a3 g5 a2 g6+ Ke6 g7 c3 f7 Ke7 Na3 c2 Nc4 Rh5 Nh3 g1R Ng5 Qc8 d8R Qg4 Rd2 Rg3 Bh3 Qd4 Kf1 Nh6 g8R Rg4 Ng7 Rgh4 Be6 Re4 Kg2 Nc6 b8Q Qd7 b7 Nd4 Qa7 Ng4 b8B Kd8 Nb6 Rh4 f3 Nf2 Qa5 Nh3 Ba7 Rh5 Rb1 a1R Rb4 Ra2 Rg1 h1R Rc4 Rhh4 f4 Ra1 Ba3 c1Q e3 Rh5 Qc2 Qe1 Qc1 Ra2 Nh7 Rhe5 Ng5 Qh4 Rd1 Qe1 Rh8 Ra1 Rh4 Be7 Bb2 Ba3 Bc3 Ng1 Rg4 Rh4 Bb4 Nh3 Bf8 Rc8 Rb4 Rc2 Rc4 Rca2 Nf5 Qd6 Bh6 Qd7 Ng7
K5B1/8/bPr4b/1Bq1PN1B/2q1bQQ1/2bRBNN1/q1nP3R/2knQ3 b - - 0 1 legal: proof: c4 b5 f4 a5 g4 f5 gxf5 g5 h4 d5 cxd5 e5 fxe5 g4 a4 Ra6 axb5 Rh6 Rh2 Rh5 Rh1 Rg5 hxg5 Bh6 Bh3 Bg7 Bf1 Bf8 Kf2 Kd7 Ke3 h5 Kd4 a4 e4 c6 b4 g3 g6 h4 g7 g2 d6 a3 Kc5 h3 b6 h2 b5 a2 b7 Nh6 g8B Qf6 Kb6 c5 Ka7 c4 e6+ Kd8 e7+ Kd7 e5 c3 b6 Kc6 e8B+ Kc5 d7 Kd4 d8N c2 Bfb5 Na6 b8Q Nb4 Nf7 Ng4 Nc3 Ne3 Qe1 Rh6 Nd6 Qe6 f6 Ba6 f7 Nd1 Bb2 c1Q Qc8 Nc2 Ka8 Rg6 Qd7 Bh6 f8Q Qf7 Rb1 a1B Ba3 Re6 Nce4 Bc3 Rb3 Qb2 Bb4 Qa2 Ng3 Rf6 Qc8 Qc4 Qg4+ Kd3 Ndf5 Rc6 Nf3 g1Q Bh5 Qd4 Be7 Qd6 Bg5 Qc5 Rf1 h1B Be3 Bg2 Rf2 Bh1 Rh2 Bg2 Ng5 Be4 Qf7 Nb4 Qf6 Kc2 Nf3 Kc1 Qfg5 Nc2 Q5f4 Ba5 Rd3 Bb4 N3d4 Bc3 Nf3
qqR5/3P4/NQB1rrkb/N1N2bbB/1B4BP/r6P/Q4KQn/5bR1 b - - 0 1 illegal: No possible last move
b4B2/RnnP1k1P/q1B1Nq1P/R1qbQ2n/2RQ1B2/2q3N1/r1Q5/1Q4K1 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 Qd7 a4 Qd6 axb5 Qd8 e4 Kd7 d4 h5 gxh5 Ba6 d6 Ke6 d5+ Ke5 d7 Bc8 d6 Ke6 Ra6 Kf6 Ra3 e5 Re3 Kg5 Nh3+ Kh6 Rf3+ Kh7 Ng1 a5 Rd3 Be7 Ra3 Bf6 Ra1 Ra6 Bh3 Rc6 Bf1 Rc5 f3 Rd5 exd5 e4 f4 Be5 fxe5 Nh6 Bd2 Kg8 Bf4 Kf8 Bc1 Ng8 Kf2 c5 b4 f5 h4 g5 e6 f4 e7+ Kg7 e8R g4 b6 f3 b7 a4 h6+ Kg6 h7 a3 b5 a2 b6 c4 h5+ Kf7 h6 c3 Ne2 c2 Re5 g3+ Kg1 g2 Na3 e3 Nb5 Qf6 d8Q Na6 b8Q Bb7 d7 Ba8 b7 Nc7 Ng3 e2 d6 e1N Bf4 c1Q Nd4 Nd3 Ra5 Nc5 Ne6 Qcc3 Rc1 a1Q Qc2 Qa2 Bb5 Qac4 Bc6 f2+ Kh2 f1B Kg1 Qb5 Rca1 Qa6 Rh4 Bc4 Rg4 Qg7 Qg5 Qge5 d8Q Qf6 Qe5 Bd5 d7 Qb5 Qa7 Qa6 b8B Nb7 Qae3 Qg5 Q3d4 Nf6 Qb1 Nh5 Qc8 Qf6 Ba7 Rg8 Bc5 Rg5 Bf8 Rf5 Bd2 Rf2 Bf4 Re2 R1a4 Ra2 Rc4 Qb6 Ra7 Qa6 Rg5 Ra3 Qb8 Qa1 Rb4 Ra2 Qee3 Bc4 Qed3 Ne8 Ra5 Bd5 Qbe5 Nc7 Rba4 Qb2 Q3c3 Qbb5 Kh2 Qb4 Qde4 Qd4 Qcc2 Qc3 Rc4 g1Q+ Kh3 Qgd4 Kh2 Qdb6 Q4d4 Qc5 Kg1
3Rn3/1Kb2r1b/1RR2B2/PbQB1R1N/P2b4/nP3B2/k2Q1rbr/2N3N1 b - - 0 1 illegal: No possible last move
K1Q1Q2r/bR3n1B/1NP1B1nb/1R1n4/6Nb/6BP/1q2NPN1/R3nk1b b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Bb7 dxc5 Qb6 a4 Bc8 axb5 a4 Bg2 Ra6 Bf1 Ra5 bxa5 Qd8 Ke2 Kf7 Ke3 Kf6 Ke4 g5 Kd5 e5 c4 e4 c6 e3 b6 d6 c5 a3 a6 e2 h3 e1N h6 a2 h7 g4 b7 g3 a7 g2 a8N Bh6 c7 Na6 Kc6 Ke5 b8R Ke4 f6 d5 f7 d4 f8N d3 Na3 d2 Nc2 Qf6+ Ne6 Qb2 Qh5 d1N Bf4 Ne3 Qe8 Nc4 Bg3 Nd6 Ne3 Nf7 Ne2 Kf3 N6f4 g1B Rb5 Bh2 Ng4 Nb4+ Kb6 Ne7 Ka7 Be6 c8B Nbd5 c6 Ng6 Nb6 Bf5 Ka8 Be4 Rb1 a1B Bf5 Nge7 Ng2 Ng6 Bc7 Be5 Be6 Bf6 Bg3 Bh4 Qc8 Qc2 Qe8 Bd4 Ra1 Qb2 Ra7 Be5 Rb7 Bb8 Qc8 Re8 h8Q Ba7 Nef4 Rd8 Bd3 Re8 Qe5 Rh8 Bc2 Nd3 Ra1 Ne1 Nh5 Ke2 Nhf4+ Kf1 Ne2 Bf3 Bb1 Ngf4 Bh7 Ng6 Qeb8 Be4 Qe8 Bf3 Qbc8 Be4 Ngf4 Bh1 Ng2
Nr2b2N/2n4n/3Qrn2/2Q4b/PBPB2B1/2NR2Kn/P1Brr3/k3R2Q b - - 0 1 legal: proof: g4 a5 e4 f5 exf5 c5 d4 a4 dxc5 a3 bxa3 Kf7 f6 Ke6 f7 Ke5 a4 Ke4 Bd3+ Kd5 Bf1+ Kc6 h4 Kc7 f4 g6 f5 Bg7 g5 Bf6 Be2 Qf8 Bc4 Kd8 Bf1 Qh6 gxf6 g5 Bc4 g4 Bf1 Qg5 hxg5 Ra7 Kd2 Ra5 Ke1 Ra8 Kf2 Kc7 f8N Kc6 c4 h5 g6 e5 g7 d5 f7 b5 f6 b4 Bg2 e4 Bh6 d4 Bc1 b3 Ne6 d3 f8B d2 f7 g3+ Kf1 b2 Qc2 d1B Qd3 h4 Qd4 h3 Ng5 h2 Qc3 Nf6 g8B Ra6 Ne6 Bd7 Ne2 Nh7 Nc7 Be8 Na8 Nd7 Bh3 e3 Kg2 Ndf6 Re1 h1R Nf4 e2 Be3 Rh2+ Kf3 g2 Qc1 g1N+ Kg3 Rf2 Nc3 b1N Ng6 Na3 Bd4 Nb5 Bg4 Nh3 Be7 Nc7 f8Q Rb6 Rb1 Rh2 Rb3 Rb8 B8e6 Rg8 Nh8 Rg6 Bf5 Rh6 Rf1 e1R Bc2 Ree2 Re1 Rd2 Bd6 Rhe2 Qe7 Nd7 Qe5 Re6 Bf8 Ndf6 Ra3 Kb7 c6+ Ka6 Qd6 Ka5 Ne4 Rf2 Rd3 Bf3 Nc3 Rfe2 Bf5 Bfh5 Bg4 Re7 Qd1 R2e6 Qf3 Ree2 Qh1 R2e6 Qdd5+ Kb4 Qd7 Ka3 Qd8 Kb2 Qd6 Nb5 c7 Ree2 c8Q R7e6 Qcc5 Nc7 Bg7 Rd1 Bh6 Ka1 Bc1 Rdd2 Ba3+ Rb1 Bd1 Rb6 Bb4 Rb8 Bc2+
4nkR1/3nn3/nBRQ2BR/1qb3B1/6Qn/1QP2PKP/1n5n/N3B1Nr b - - 0 1 legal: proof: e4 c5 a4 g5 h4 b5 axb5 f5 exf5 a5 d4 g4 dxc5 Ra7 Bf4 h5 Rh2 g3 Bd3 Bb7 Rh1 Ra6 Qe2 Rg6 Bd2 Rg5 hxg5 h4 Bc1 h3 Qd1 h2 Bf1 Bf3 Qe2 Bg4 Qd1 Bh3 gxh3 Qc7 Ra3 Qc8 Ra1 Qd8 b4 d5 b6 e5 c3 a4 f6 e4 b7 a3 c6 g2 f7+ Ke7 c7 a2 c8R d4 b5 d3 g6 e3 b6 e2 g7 Na6 b8Q Qe8 b7 Qb5 Rc6 Nf6 g8Q Ne8 Qg4 Rg8 Na3 Rg5 Rb1 a1N Nc2 Nb3 Na1 Nbc5 Qb3 Nd7 Qbg3 Rg6 b8B Rd6 Bg5+ Rf6 Kd2 e1N Ke3 d2 Bd3 Nf3 Bg6 d1N+ Ke4 Nb2 Qd6+ Kd8 Rd1 Nh4 Ba7 Be7 f8B Re6+ Kf4 Re1 Bfh6 Rf1 Ne2 g1N Kg3 Ngf3 Rg1 Re1 Rg2 Rh1 Bd2 Bf8 Be1 Be7 Ng1 Bf8 Qda3 Bc5 Rdd6 Ke7 Bg5+ Kf8 Re6 Nd4 f3 Ndf5+ Kf4 Ne7 Kg3 Be3 Qd6 Bc5 Ne2 Rg1 Bb6 h1N+ Kh2 Nf2 Kg3 Rh1 Ng1 Ng7 Be4 Ne8 Rh6 Qc4 Bg6 Qb5 Qgc4 Ng4 Qce6 Nh2 Qg4 Nf1+ Kf4 Qa4+ Be4 Ne5 Bf6 Nb8 Qc8 Nd1 Rg7 Nb2 Bg5 Na6 Qg4 Qb5 Bg6 Nh2 Kg3 Nd7 Rg8#
r4Qrb/3Q1P2/n3k1nR/KN2b3/2p2r2/1P1B2bR/PNQ2Bq1/Q4R1B b - - 0 1 legal: proof: d4 b5 g4 h5 gxh5 f5 b4 c5 e4 a5 exf5 Ba6 bxa5 b4 d5 b3 cxb3 Bc8 Qd2 Bb7 Qd1 Bc6 dxc6 Qc8 Na3 Qc7 Nb1 Qd8 Kd2 Kf7 Kc3 e5 f4 g5 h4 d5 c7 c4 c8Q g4 h6 g3 a6 g2 f6 e4 h5 e3 f5 e2 h7 Ba3 a7 Bd6 h6 Bf8 Qc2 Nd7 Rh3 Nb8 Be3 Qe8 Qd7+ Be7 Bf2 Na6 Na3 Qf8 Nb5 Qg7 Nf3 g1B Ne1 Qg2 Nd3 Bh2 Nb2 e1B+ Qd2 Nc5 Kb4 d4 Ka5 Na6 Bd3 Be5 Qc3 Bd2 Re1 Bdf4 Qc2 Bh2 Rf1 Bhg3 Qc8 Bc5 Qc7+ Ne7 Qd7 Rhe8 h8R Rg8 h7 Bcd6 Qc6 Ng6 Qd7+ Kf8 f7 Kg7 Qc3 Kf6 Qc2 Bf8 Rh6 Bg7 f8Q+ Kg5 Be2 d3 f6 d2 f7 Kf6 Bd3 d1R Rh3 Re1 Rh6 Re4 Rh3 Rd8 a8B Rf4 Bae4 Qg1 Bh1 Ra8 Qb4 Qh2 Qe1 Qg2 Qa1 Rgd8 Rg8 Rf8 h8Q Rfc8 Qh6 Bh8 Qf8 Rd8 Rg7 Rdb8 Rgh7 Rc8 Qb7 Ke6 R7h6 Rcb8 Qa3 Rg8 Qf8 Nc5+ Qa7 Na6 Qd7+
qR2q3/1N1rNn2/N1bp1BPR/1r2P2K/1q4Rn/kB2Pb2/3Q4/B2QN3 b - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 b4 gxf5 b3 axb3 g4 b4 Be7 b5 Bg5 hxg5 Qf6 Nf3 Qb6 Ng1 Qd8 Kf2 Ke7 Kg3 a5 Kh4 h5 b4 d6 c4 a4 b6 g3 g6 a3 b7 a2 e3 g2 f6+ Ke6 c6 Qf8 f7 Qg7 f8B Qh7 c5 Qg7 b5 Ra5 b6 Rh7 c7 Qd7 c6 Rf7 Na3 Qe8 Be7 Rb5 Nc4 Bd7 c8N Nh6 c7 Nc6 b8R Nd4 b7 Kd5 Nf3 Kc5 Ne1 Kb4 Bf6 g1Q Bb2 Bc6 Na5 Rd7 Ne7 Nf7 c8Q Qg2 Rc1 a1Q Bc4 Qa4 Ba1 Ka3 Bb3 Qb4 Rc4 Bf3 Qc6 Qa2 Qd5 Nf5+ Kh3 h4 Q5d2 Bc6 Kg4 h3 Kh5 h2 Rg4 Bf3 Rd8 Bc6 b8N Nh4 Nb7 Bf3 Na6 Bc6 Rf1 h1B Rb8 Bhf3 Rh1 Qc2 Bc4 Qca4 Bb3 Qaa5 Nc7 Qa7 Na6 Qa8 Rh3 Ng2 Rh4 Nh6 Kg5 Nf7+ Kf5 Nh8 Rh6 Nh4+ Kg5 Nf7+ Kh5
4qr1b/1R3B1K/2PB3R/QRrQbPk1/Np1N4/r5R1/5Pn1/1q1N1Bn1 b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 c5 g4 h5 gxh5 f5 e4 b4 exf5 Ra7 d4 Ba6 dxc5 Bb5 axb5 Ra8 Ke2 Kf7 Kf3 Kf6 Kg4 g5 h4 e5 c4 d5 h6 e4 Kh5 e3 b6 e2 h7 e1B c6 d4 c7 g4 c8N g3 c5 d3 b7 g2 a6 d2 a7 Qd7 Nc3 Nc6 b8R Ne5 Ra3 Nf3 Rb7 Qe7 Nb6 Ne5 Nba4 Ng6 Nge2 g1R Nd4 Rb8 a8B Nh6 Qb3 Re8 Nd1 Rc8 Qd5 Ne5 Rg3 Bg7 Rh2 Rhf8 h8R Nhg4 Rb5 Qd7 Rh7 Ne3 Bb2 Bh8 Kh6 N5c4 h5 Qe8 Rhb7 Ng2 Kh7 Ne5 h6 Nf3 Ne3 d1Q Nc6+ Nd4 Qd6+ Qe6 Re7 Bc3 Be2 Re1 Bf1 Qa1 Ra7 Rc1 Nd1 Nf3 Qc7 Rb1 Qa5 Qea2 Bc1 Qe2 Bf4 Bg7 Bd6 Rb3 Rd7 Be5 Nd4 Nge1 Bd5 Qb1 Bf7 Ng1 Rdb7 Ra3 Rh4 Bf4 Rhh3 Rce8 c6 Re5 Rh1 Rc5 Rh4 Qe6 Rh5 Be5 Rhh3 Re8 Rh1 Bf8 Kg8 Qc8 h7 Bg7+ Bf8 Qd7 h8Q Qe6 Qh2 Bh8 Qg2 Rc8 Qd5 Ng2 Kh7 Re8 Rgh3 Kg5 Bd6 Rf8 Re3 Qc8 Rh6 Qe8 Rg3+
Q2NbB2/4K3/R1P4b/1q1P2P1/2N3nq/k1pQ2RN/2BR3r/N1b1n1rB b - - 0 1 legal: proof: b4 b5 e4 c5 c4 g5 h4 f5 hxg5 d5 exf5 Bh6 cxd5 c4 a4 Qb6 axb5 Qc5 bxc5 Bf8 Ke2 Kd7 Ke3 e5 Ke4 h5 g4 a5 d4 a4 f4 c3 d6 h4 Kd5 h3 b6 a3 b7 e4 g6 h2 f6 e3 g7 a2 f7 e2 g5 e1Q f5 Na6 b8N+ Kd8 f6 Qh4 d7 Kc7 Ke6 Nb4 d5 Na6 Nd2 Rh7 Nb3 Qf2 Bg2 Bb7 d8N Qh4 Nh3 Rh5 Ba3 Bc6 Qd3 Be8 Rhd1 h1Q Nbc6 Qf1 Nca5 Nb4 c6 Kb6 Rd2 Nc2 Bh1 Nh6 g8B Ng4 Bh7 Bh6 f8Q Ne1 f7 Ra6 Ke7 Ra8 Qc2 Kb5 Qd3+ Ka4 Qh8 Rb8 f8R Rb4 Rf3 Qe2+ Qe3 Qb5 Qd3 Rf4 Rg3 Rf1 Rb1 Rg1 Na1 Bd7 Bd6 Be8 Rb4+ Ka3 Qf8 Qc4 Rb6+ Qc5 Ra6 Qb4 N1b3 a1B Bf5 Bb2 Na1 Bc1 Qe3 Bg7 Ke6 Nh6 Qf7 Nd3 Qfa7 Qc5 Bf8 Qd4 Nf2 Ne1 Bc2 Rh2 Qa8 Qh4 Qd3 Ng4 Nh3 Bh6 Qf1 Kb2 Qd3 Qb5 Ke7 Ka3 Nc4+
1n4KQ/QnBqr2R/q1PB4/R1PP2p1/1RRb4/1N1k1B1r/N5r1/1b3N2 b - - 0 1 legal: proof: e4 d5 a4 b5 axb5 c5 g4 h5 gxh5 f5 exf5 c4 Ra4 c3 Rd4 Ba6 Rxd5 Bc8 Rd7 Kf7 bxc3 Nf6 c4 Ke8 c5 Ng8 Ke2 Kf7 Ke3 Kf6 Kd4 a5 Kd5 e5 h4 g5 f4 a4 c4 a3 d4 e4 b6 a2 h6 a1R h7 e3 c6 e2 h5 e1Q c5 Bh6 b7 R1a4 Nf3 Qea5 Be2 Qc3 Rh4 Qb2 Nh2 R4a7 Qa4 Qe8 Nf1 Ra5 Bf3 Qd8 Nc3 R5a6 Na2 Rb6 Qa7 Bf8 h6 Na6 b8R Rb3 Rb4 Be7 Rc4 Kf7 f6 Kg6 Ke6 Rd3 d5 Qbb6 f7 Qb7 f8B Bf6 Bd6 Ne7 Bb2 Nf5 Bbe5 Rg8 h8Q Rg7 h7 Nb8 Bc7 Qa6 Bed6 Bd4 Rb4 Ng3 Rg4 Ne4 f5+ Kh5 f6 Kg6 f7 Rb3 Bg3 Nd6 Rf4 Nb7 f8N+ Kh6 Re4 Rd3 Bge5 Re7+ Kf6 Rd2 Ne6 Rg2 Bd6 Qc7 Rd8 Qd7 Rg4 Bc3 Nd4 Ba1 Nb3 Bd4 Rf8 Kh5 Qb6 Ra7 Rf7 Ra8 Kg7 Ra7 Kg8 Kg6 Rff4 Ra8 Re4 Kf5 Bc7 Ra7 Bed6 Ra8 Re2 Ra7 Rc2 Re3 Rcc4 Rc3 Be2 Rh3 Rg3 Ke4 Bf3+ Kd3 Rg4 Qe7 Rb5 Bf5 Ra5 Qd7 Rb4 Bc3 Rgc4 Be5 Qg7 Be4 h8R Bd4 Rh7 Nd8 Raa4 Qdc8 Nc3 Kc2 Qh8 Rb7 Qa7 Qf5 Bb6 Re7 Nc1 Nb7 Bbc7 Qd7 Ra5 Bd3 Ne3+ Kd2 N3a2 Bb1 Nb3+ Kd3 Nf1
2Qb1k1B/1B3B1P/R2N2P1/nK1R1qQq/rp3b2/r1R1n2B/2nN1N1P/8 b - - 0 1 legal: proof: e4 d5 b4 f5 exf5 h5 c4 g5 cxd5 a5 bxa5 g4 f3 h4 f6 h3 gxh3 g3 h4 Be6 h5 Bg4 fxg4 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 b5 Kd3 c5 a4 e5 a6 b4 Kc4 e4 d4 e3 a5 e2 f7+ Ke7 d6+ Kf6 g5+ Kg7 g6 e1Q h6+ Kf6 h7 Kg7 d5 g2 d7 Be7 d6 Bf6 a7 Qe5 a6 Qg3 Nd2 Qe1 Qg4 Qb6 d8R Nc6 d7 Qh4 Bb2 Qa5 Nh3 g1N Nf2 Nf3 Bh3 Nh6 Rhc1 Ne1 Rc3 Qh5 Qg5 Nf5 Ra2 Rg8 Ra1 Nc2 f8Q+ Kh8 Qe8 Kg7 Qe6 Re8 Raa3 Kf8 Ba1 Qc7 Kb5 Na5 Qc6 Qf4 Qc8 c4 Bb2 Nb7 Ra2 Nfe3 Ra4 Rb8 a8B Na5+ Bb7 Ra8 a7 Qf5+ Bd5 Nc6 Ra6 Na5 Ra3 Be7 Bh8 c3 Rb3 Na1 Ra3 c2 Rb3 c1B Rc3 Qf4 Bg8 Nac2 Bf7 Qf5+ Qc5 Rc8 a8B Rb8+ Bb7 Ra8 Rb8 Rc8 d8N Rc6 Rc8 Rd6 Rc7 Rd3 Rd7 Ra7 Rd5 Ra8 Rc4 Ra3 Rc3 Ra4 Qc8 Bf6 Nc6+ Bd8 Na7 Nac4 Nb3 Nf1 Kc5 Ra2 Ra5 Bf4 Nd2 Nfe3 Nb5 Ra3 Nd6 Ra6 Kb5 Ra8 Ra6 Ra7 Rc6 R7a4 Rb6 Na5 Ra6
1N1Qn2b/1P3B1B/1nr1Q3/P1bP1N2/Bq2q3/R1N3K1/pr5R/B1r1k1Q1 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 d5 cxd5 g4 a4 g3 hxg3 Qd7 g4 Qd6 g5 Qd8 Bd3 b5 Bf1 a5 axb5 a4 b3 a3 b6 Be6 Bc4 Bd7 Bf1 Ba4 bxa4 Bg7 Ne2 Bh6 Ng1 Bf8 f4 Kf7 Kf2 h5 d4 e5 g4 c5 a5 c4 f6 Kg6 f5+ Kh7 b7 c3 d6 h4 f7 e4 d5 h3 g6+ Kg7 d7 Kf6 g5+ Ke5 g7 h2 g6 c2 f6 e3+ Kg3 Ke4 Nf3 e2 Nh4 e1R Bb5 Bc5 f8Q Ra6 f7 Nf6 g8B Qe7 d8Q Nbd7 g7 Nb6 Ba4 Ne8 Bb2 Ke3 Bh7 c1B g8B Re2 Bg7 Rb2 Qg1+ Ke2 Nf5 Bd2 Be5 Bc3 Qh6 B3d4 f8N a2 Nd7 Qf8 Bf7 Qd6 Nb8 Rf8 Bf4 Bh8 Be5 Qe7 Qe6 Qh4+ Kg2 Qb4 Nc3+ Kd2 Rb1 Rg8+ Bfg6 Rg7 Rf1 Rc7 Kg3 Rc8 Rf3 Rc6 Bf7 Ra8 Nd7 Rac8 Nb1+ Ke2 Ra3 R8c7 Nc3+ Kd2 Qb1 Rc8 Nb8 R8c7 Re1 h1Q Bg7 Qhe4 Rh1 Rc8 Qg1 R8c7 Rh5 Rc8 Qd4+ Ke1 Rh2 R8c7 Qe3+ Re2 Nb1 Bf8 Nd7 Rc1 Ba1 Bc5 Nb8 Rc6 Qd4 Rd2 Nc3 Rb2 Qg1+
2BBnB1N/4r2r/1P1r1R1Q/k1P1bKRN/1QRrpR1q/7Q/b5P1/3n4 b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 c5 exf5 b4 d4 b3 dxc5 Nh6 axb3 Na6 b4 Ng8 b5 Nb8 Ke2 d5 Kf3 Kd7 Kg4 Kc7 c4 e5 f4 h6 b6+ Kc6 a6 d4 g6 d3 a7 e4 g7 d2 Ne2 Qf6 Rh4 Qe5 Ra4 Qe6 Qe1 d1R Nd2 Bd6 Nf3 Qd7 Ne5+ Kb7 Ng3 Qb5 Nf7 Bd7 c6+ Kc8 c7 Kb7 Qb4 Na6 Nh5 Rh7 Nh8 Rd8 a8R Ne7 g8R Nd5 Rg5 Be6 c5 Qa5 Bb2 Re7 Bf6 Rd4 Bd3 Rdd7 Rf8 Be5 Rf7 Kc6 c8Q+ Nac7 Ba6 Rd6 Rf8 Bf7 Qe6 Nc3 Bc8 Ne8 Qeb3 Rb7 Bd8 Nd1 f6 Re7 Qh3 Ba2 f5 Qa7 f7 Qa5 Qb1 Qe1 f6 Qh1 Qb2 Qh2 Qba3 Kb5 Rc4 Qh1 Qab3+ Ka5 Kf5 Qe1 Rf4 Qg3 Ng7 h5 Qb2 h4 Nh5 Rb7 Rfg8 Qh2 f8B Re7 f7 Qh1 R8g6 Qe1 Qh1 h3 Rf6 h2 Qb3 Qh4 Qh3 Nf2 Qb1 h1R Bh6 Rc1 f8Q Nd1 Qg7 Rc3 Qh7 Rcd3 Bf8 Rg3 Qh6 Rh7 Rg8 Rgg7 Qb2 Rgd7 Rg5 Rde7 Qb4#
2rn4/Q1N1PRQ1/1nk5/2nQp2N/PK3b2/2P2B1q/2NRn1b1/r1B2R1Q b - - 0 1 illegal: No possible last move, all moves rejected
1Qr2kRK/2p2b1b/4n3/1NPQn1q1/RB1RRbP1/2B1r1Q1/1NP3B1/b7 b - - 0 1 legal: proof: b4 a5 bxa5 b5 d4 g5 h4 f5 hxg5 b4 e4 d6 exf5 b3 axb3 Qd7 b4 Qc6 b5 Qc5 dxc5 Kd7 Qd4 Kd8 Qd1 Ke8 Kd2 h5 Kc3 e5 g4 d5 f4 e4 Kd4 h4 Ke5 e3 f6 d4 b6 e2 f7+ Ke7 b7 e1B g6 d3 g7 d2 a6 h3 f5 h2 f6+ Kd7 a7 Bf2 Nh3 Be1 Nf2 Rh4 Ba3 Kd8 Qf3 d1B Nd3 Be6 Bg2 Nh6 g8R Nf5 Bb4 Bd2 Ra4 Rh3 Na3 Ng7 Re1 h1Q Re4 Be2 Nb5 Qc1 Nb2 Bd3 Qg3 Bd5 Rd4 Ne6 Re4 Ba2 Kf5 Bh6 Kg6 Nc6 Kh7 Rc8 a8Q Qg5 b8Q Ne5 Kh8 Bd5 Rd4 Bh7 Qab7 Kd7 Q7a8 Bd6 f8B Ke8 Bg7+ Kf7 Re4 Bb3 Qd5 Be7 Qe1 Re3 Rd8 Bf8 Rd7+ Ke8 Qg3 Be7 Rd6 Bd8 f7+ Ke7 Bf6+ Kf8 Rd7 Nc6 Qge5 Ng7 Qd2 Qh5 Qe1 Bf4 Nd3 Qg5 Qe6 Bd5 Bd4 Bf6 Qg3 Bc4 Ba1 Bd4 Rd5 Ne5 Qd7 Bb2 Rdd4 Be6 Qc6 Ke7+ f8R Bf7 Qd5 Ne6 Rg8 Bc1 Bac3 Bb2 Qb6 Ba1 Nb2 Nd8 Rg6 Kf8 Qb8 Ne6 Rg8+
1Nr2Br1/k1nN1R2/3Rr1N1/3qB1r1/P1Bp2QQ/PP1K2Q1/rb4Bn/8 b - - 0 1 legal: proof: g4 a5 e4 f5 exf5 h5 gxh5 b5 d4 c5 dxc5 b4 b3 a4 Kd2 Bb7 Ke1 Bd5 bxa4 b3 Ne2 b2 Ng1 Bb3 cxb3 Ra6 Qd2 Ra7 Qd1 Ra8 Ke2 g5 h4 d5 f4 Kd7 h6 Kc8 f6 Kb7 h7 e5 a3 d4 f5 g4 f7 g3 h5 e4 h6 g2 c6+ Ka6 c7 e3 c8B+ Kb6 f6 Ra6 Bb7 Ra5 Nh3 g1R Nf4 Rf5 Nc3 b1R Ne4 Rd5 Ng6 Qc7 Nc5 Rb2+ Kd3 e2 Na6 e1R Qg4 Rf2 Bf4 Rh2 Be5 Ra5 Bbg2 Bb4 f8N Qf7 Nd7+ Ka7 Rd1 Qe6 f7 Qd5 f8B Nf6 Be2 Rg8 h8Q Rc5 h7 Bc3 Qg7 Rc8 h8Q Bb2 Bef1 Re4 Qhh4 Re2 Qgg3 Ng4 Rd2 Re1 Rf2 Re4 Rf7 Re1 Nac5 Na6 Nb8+ Nc7 Ncd7 Re4 Bf4 Re7 Be5 Re6 Be2 Rh3 Bef1 Nh2 Be2 Ra1 Rc1 Ra2 Rc6 Rd8 Rd6 Rc8 Qg4 Rh6 Qf6 Rh5 Qfh4 Rg5 Kc2 Ra1 Bc4 Ra2 Kd3
Bb1qnN2/NP1nprnn/N2P4/2B1R3/3QPRQ1/2Nn1Q2/r4R1K/1k6 b - - 0 1 legal: proof: g4 b5 c4 g5 b4 d5 cxd5 a5 bxa5 b4 a4 b3 h4 b2 hxg5 Bg7 g6 Bf8 g5 Bg4 f3 Qd7 fxg4 Qb5 Nc3 b1Q axb5 Qb4 Nb1 Qd6 Rh6 Qd7 Rh1 Qd8 Kf2 Kd7 Kg2 Kd6 d4 c5 a6 h5 b6 f5 a7 f4 g7 f3+ Kh2 h4 g6 f2 g5 h3 Bg2 c4 Na3 c3 Nb5+ Kd7 d6 Ke6 d5+ Kf5 d7 c2 d6 Rh7 Be3 c1N Ra2 Ke5 Bc5 Nb3 Qd4+ Kf5 e3 Na6 Ne2 Nf6 g8R Bg7 Rf1 Bh6 g7 Nc7 g6 Nce8 Nec3 Bg5 Re1 Bh6 Rf8 f1N+ Kh1 h2 g8Q Bf4 Rf2 Rf7 g7 Nh7 Bf3 Bg3 Nc7 Be5 Na6 Ng3+ Kg2 h1N Kh2 Bf6 Ree2 Nh5 Re1 Qb8 d8N Bh4 Ne6 Qd8 Qh8 Bf6 g8Q Nhg7 Qd1 Bd4 Bb7+ Ke5 Qf3 Nc1 Be4 Nd3 Bc6 Ng3 Bd5 Rc8 a8N Nh5 N8c7 N5f6 N7b5 Nd7 Ba8 Rc7 b7 Rc6 Bb4 Ba7 Bc5 Bb8 Na7 Rb6 Ree2 Rb2 Re1 Rf5 Rf6 Ra2 Nf8 Rf4 Qc4 Rf5 Qcg4 Rf4 Rh6 Rf5 Rh4 Rf7 Ne4 Kd5 Ree2 Kc4 Nc3+ Kb3 Re1 Nh5 Qhd4 Nhg7 e4 Re2 Ra1 Kb2 Ra5 Rc2 Ba3+ Ka1 Re5 Rb2 Bc5 Ra2 Qgh3 Rd2 Rf4 Ra2 Ne2+ Kb1 Qhg4 Kc2 Nc3+ Kc1 Ncb5 Kb1 Nc3+
Q2Q2Bb/Pp5R/3Qr3/B1R1P3/Q1N2krP/1n5r/R1q1r2r/2N2KNn b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 e5 f4 d5 fxe5 c5 b4 Bd7 bxa5 Bb5 cxd5 c4 d3 c3 Kf2 Bc5+ Ke1 Bc4 dxc4 Bf8 a4 Ke7 e4 f5 h4 g5 h6 c2 e6 Kd6 a6 Ke5 e7 f4 e8Q+ Be7 h7 f3 c5 g4 c6 g3 a7 g2 d6 Qc8 a5 Qf5 d7 Nh6 d8Q Nd7 a6 Nc5 c7 Ng4 c8N Nf2 Bd2 c1R Nb6 Rc2 Qa4 Re8 h8R Nb3 Nc3 Bf6 Rh7 Bh8 Nce2 Re6 Nc1 Rc3 Rh3 Nh1 Ra2 f2+ Ke2 Rf3 Ba5 Kf4 Nc4 Rg3 Rh2 Rh3 e5 Rc8 Q1d6 Qc2+ Nd2+ Rc4 a8Q Rb4 a7 Rc4 Nf3 g1R Bg2 Rd1 Ng1 f1R Bd5 Rff3 Rf2 Rh2 Rg2 Rd4 Bc4 Rfh3 Bd5 Qc3 Nc4 R1d2+ Kf1 Qc2 Rgg7 Rde2 Rc7 Kg3 Rc5 Rg4 Be4 Kf4 Bd5 Rf6 Bf7 Re6 Bg8
rB3bnK/QNQ4n/Q3rB2/1R2n2B/2nPN1BP/6R1/2kq1Pp1/2r4N b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Nb8 b5 Qd6 Bh3 Qd7 Bf1 Qd8 b6 h5 gxh5 a5 b3 a4 Bc4 a3 Bb5+ Bd7 Bf1 Ba4 bxa4 Ra5 Qf3 Ra6 Qd1 Ra8 Ke2 Kf7 Kf3 Kf6 Kf4 c5 d4 e6 h4 g6 h6 a2 h7 c4 a5 c3 d6 c2 a6 Be7 b7 Qa5 a7 Qd5 d7 Bf8 d8N Nh6 Qd3 Ba3 Be2 Be7 Bg4 Nd7 b8Q Nf8 Nc3 Qa5 Qc7 Ng8 Rb1 a1N Nb7 Nb3 Rh3 Nd2 Qa6 Nc4 Rb5 g5+ Ke4 Re8 Bf4 c1R a8B Bd6 Nge2 e5 Bh2 Re6 Ng3 Ba3 Bh5 g4 Nh1 g3 Bg4 g2 Rg3 Be7 Kd5 e4 Qa7 e3 Ne4+ Kf7 f6 Kg6 f7 e2 Qa6 e1N Qa7 Nd7 f8Q Nde5 Qfc8 Bf8 Bh5+ Kf5 Bg4+ Kf4 Bh5 Nh6 Bg4 Rg8 h8B Nf3 Bf6 Ng5 Bh5 Nh7 Bg4 Re8 Qe6 Rg6 Qea6 Qd2 Bh5 Rc8 Ke6 Ng8 Nbd6 Nd7 Kf7 Rd8 Bd5 Ra8 Be6 Rh6 Beg4 Rg6 Bd8 Re6 Nb7+ Bd6 Kg7 Nde5 Ng5 Be7 Kh8 Bf8 Nf3 Ke4 Bf6 Kd3 Ng5+ Kc2 Ne4 Rc8 Re3 Rb8 Bf4 Rbe8 Rg3 Ra8 Qcb6 Nc6 Bb8 N6e5 Qc7
B6r/3K2b1/4r3/b1QpB1BQ/rnR2N2/5RP1/PPN1b1b1/R3qNkB b - - 0 1 legal: proof: h4 f5 c4 g5 hxg5 c5 e4 b5 cxb5 a6 bxa6 Nc6 exf5 Na5 d4 c4 Nf3 Nb3 Ng1 Nc5 dxc5 Bh6 Nh3 Bg7 Ng1 Bf8 Kd2 Kf7 Kc3 d5 Kb4 h5 Kb5 e5 Kc6 e4 f4 c3 f6 Kg6 g3 Kf5 a7 e3 g6 Ke4 f7 c2 f5 h4 g7 h3 f6 h2 Bg2+ Ke5 Ne2 Ba6 Nf4 e2 Rf1 h1B Rf3 Ke4 Na3 Bd6 f8Q e1R f7 Nf6 g8N Qe7 Nh6 Nd7 Ng4 Bc7 Ne3 Ba5 Nf1 Be2 Qc8 Qe8 f8B Nb8+ Kd6 Na6 c6 Nb4 c7 Qe5+ Kd7 Qc3 Be3 c1B Nc2 Bd2 Bd4 Be3 Be5 Bd4 Bh6 Qe3 Bd6 Bg7 Be5 Qg1 Bg5 Qf2 Bh3 Bg2 Qf8 Qg1 c8R Qe3 Qc5 Qc1 Rc3 Qd2 Rc4+ Kf3 Rf8 Qe3 Bf5 Kf2 Be4 Kg1 Rf7 Rae8 a8B Re6 Qd3 Qf2 Qf3 Rd1 Qh5 Rd4 Ng6 Qe1 Rf3 Rh7 Nf4 Rh8 Re3 Rd3 Bf3 Ra3 Be4 Ra4 Bf3 Bh3 Bh1 Bg2 Rf3+
R1br4/2rk2K1/2R2PBB/Nb1QpP1Q/1rR1q3/6Qr/3Pb2N/1n1Q2B1 b - - 0 1 legal: proof: f4 a5 e4 f5 c4 g5 h4 d5 cxd5 a4 g4 a3 e5 Bg7 gxf5 g4 bxa3 Nd7 a4 Ndf6 exf6 Bh6 a5 Bg5 hxg5 Qd7 Ba6 Qd6 Bf1 Qd8 Kf2 e5 Kg3 h5 Kh4 b5 a4 c5 g6 c4 Kg5 g3 d6 b4 g7 c3 Kg6 g2 a6 c2 a5 b3 a7 h4 a6 h3 f7+ Kd7 f8B b2 f6 h2 Bd3 Kc6 d7 Qa5 d8Q Qb4 Na3 b1B Nc4 Qb2 Ra4 Rh7 Qd5+ Kc7 Nf3 Qb7 Na5 Rh3 Bca3 c1R Bac5 g1R+ Kf7 Qb4 Bg6 Ne7 g8Q Rg4 f5 Qe4 Bh6 Bd3 Rc4 Be2 Kg7 Rf4 Re1 h1B Nh2 Rg4 Qdf7 Kd7 Bg1 Bg2 Rc6 Bgf1 Rc4 Rb8 a8R Rgh4 a7 Rc2 Rb4 Rc7 Rc4 Rg4 Rc6 Bb5 Re3 Bfe2 Rec3 Rf4 R3c4 Rfh4 Qff8 Nd5 Qh8 Nc3 Qa3 Nb1 Qg3 Rbb7 Rb8 Rf4 a8Q Rb6 Qb7 Rf3 Ra8 Rd3 Qa7 Rb8 Qaf2 Rb3 Qfg2 Rb4 Q2f3 Bca6 Qg8 Rd8 Qh5 Bc8 Qd5+
5B1R/3B1pB1/Rqn1r1nQ/Nn4RK/b4k2/2P4Q/1P3n1P/R1N1r1rN b - - 0 1 legal: proof: d4 c5 dxc5 e5 a4 b5 axb5 Qc7 f4 Qb6 fxe5 Qd8 g4 h5 gxh5 Ke7 c6 Ke8 Bh6 a6 Bc1 Bc5 Bg2 Bb6 Bf1 Ba7 b6 Ke7 bxa7 Ke8 Kf2 Ke7 Kf3 Ke6 Kg4 d5 e4 g5 c7 d4 c3 d3 h6 a5 h7 a4 Qd2 a3 Nh3 a2 Kh5 g4 Nf2 g3 Bh3+ Ke7 e6 Kd6 e7 Ke5 e8N g2 Rg1 Qd7 Qh6 d2 Nd6 d1N Nh1 Qb5 Nd2 Nd7 Nb3 Nf8 Nb7 Nf2 N7a5 Ng6 Bd7 Qb6 Bd2 Bb7 c8Q Bc6 Nc1 N8e7 Be3 Ba4 Bc5 Nc6 Bf8 Rb8 a8R Rg8 h8B+ Rg7 Rb1 a1N Ra6 Nc2 Ra1 Rb7 Bg4 Re7 Bd7 Kd6 e5+ Kd5 e6 Ke5 Ncb3 Na3 Nc1 Re8 e7 Nb5 Qg5+ Ke4 Qh6 Rg8 Bhg7 Kf3 Re1 g1R Re5 Re1 Rg5 Kf4 Bh3 Rd8 e8R Rd6 Qd7 Rf6 Qd3 Rd6 Bd7 Rde6 Rd8 Rg1 Qh3 Rh8 Bb4 Rhe8 Bc5 R8e7 Rh8 Ree1 Ba3 R7e6 Baf8
4q2r/n4p2/1kP2Q2/3b4/rPb4B/1BNNQPbr/QBR3B1/2K1R1Nb b - - 0 1 legal: proof: b4 c5 bxc5 b5 d4 e5 a4 Qg5 axb5 Qd8 dxe5 g5 h4 Ne7 hxg5 Na6 c3 Nb4 cxb4 Ng8 Kd2 h5 e4 a5 g4 d5 g6 Kd7 g5 Kc7 g7 h4 b6+ Kc6 g6 h3 e6 a4 e5 h2 e7 a3 e8Q+ Qd7 f3 d4 b7 d3 b8B a2 e6 Ra7 e7 Rb7 Qc2 Nh6 g8N Ra7 g7 Ra6 Bg3 Ra3 Bg2 Ra5 Nc3 Bb7 Bh4 Nf5 Nh6 Nd6 g8Q Ra4 Qg7 Nc8 Bb2 Na7 Re1 a1R Ng4 R1a2 Kd1 d2 Nf2 Ba6 Qd4 Bc4 Qf6+ Kc7 c6 Kb6 Nd3 Bh6 Qb3 Bf4 Kc2 Ra1 Qa2 Bg3 Re2 Rf1 Rf2 d1B+ Kc1 Qe6 Rc2 Qc8 Qd7 Bd5 Qde6 Qe8 Qee5 Rf2 Qeg5 Be2 Qge5 Qf8 e8B Qe7 Bd7 Qe8 Be6 Bf1 Nc5 Bfc4 Nd3 Rd2 Nh3 Re2 Re1 h1B Ng1 Rd2 Bgh3 Rh2 Bg2 Rh3 Qeg5 Be4 Bd5 Ba6 Bc4 Bd5 Bb3 Bac4 Qe3+
q2B1RbR/1B3r1N/Bq1r1r2/n2P1Q1p/2N5/1b1NQPk1/2rP1B2/4K2R b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 c4 d5 cxd5 Be7 a4 Bd6 axb5 Bf8 Na3 f5 Nf3 e4 Rh2 Nc6 Rh1 Nd4 Ng1 Bg7 Kf2 Be5 fxe5 f4 Nb1 f3 Ke3 f2 Nc3 Qf6 Nb1 Nf3 exf3 Qe7 Ke2 Qd8 b4 Ke7 g4 h5 g6 a5 b6 c5 b7 a4 b8Q e3 g7 c4 e6 Kf6 g5+ Kf5 b5 a3 g6 a2 b6 c3 e7 c2 e8B Nf6 g8R Ra4 g7 Nd7 b7 Qc7 Nh3 Rh6 Rh8 Rc6 g8N Rg4 Ba3 c1R Qa7 R1c2 b8B Nc5 Nf4 Rf6 Bc6 Nb3 Bc5 Qb6 Nd3 Na5 Bb7 Rf4 Na3 Be6 Nc4 Bf7 Rb1 a1Q Bc7 Rd6 Nf6 Bg8 Nh7 Rf6 Bg2 f1B+ Ke1 e2 Bg1 Qa3 Bd8 Qf8 Bc7 Qa8 Bd8 Rd6 Rb2 Rf6 Qb1 Rf7 Nf6 Kg5 Bh3 Kh4 Bhc8+ Kg3 Nh7 R4f6 Ba6 Bh3 Bcb7 Bd7 Rb4 Ba4 Rb5 Bb3 Rc5 Qd6 Rc8 Qc7 Qd4 Qb6 Qe3 Rb2 Nde5 Bc2 Qd4 Nb3 Be7 Qe6 Rf8 Qb6 Bd8 Na5 Qc3 Ba4 Qf5 Bb3 Qd4 Rd6 Nd3 Rc2 Qc5 Rdf6 Bh2+ Kh4 Kf2 e1R Qd4+ Re4 Qe3 Re6 Ke1 Rd6 Bg1+ Kg3 Bf2+
4n2K/2Rq2QB/k3br1P/3PQ1Nr/PBp2n2/1r3rNN/2R4q/1B3Q1N b - - 0 1 legal: proof: c4 c5 e4 d5 cxd5 h5 g4 a5 gxh5 f5 exf5 a4 d4 a3 bxa3 e6 a4 c4 a5 Bc5 dxc5 Rh7 Bg5 Rh6 Bc1 Rh8 Kd2 Kd7 Kc3 Kc7 Kd4 g5 Ke5 b5 a4 Kb7 h4 g4 f4 b4 h6 b3 a6+ Ka7 h5 b2 h7 g3 c6 g2 c7 Kb6 f6 Ne7 f7 Qg8 Kf6 e5 f8Q e4 a7 e3 f5 e2 Nc3 e1Q Ne4 b1R Ng3 Qb4 Qg7 Ba6 c8B Qe1 N1e2 g1R Ba3 Qa5 Bb4 Rb3 Rc1 Re3 Rc2 Bb5 h6 Rg2 Rg1 Re4 Nh1 Ba6 Neg3 Rd2 Bd3 Qb5 Qf1 Re3 Be6 Qge8 Bg8 Qed7 Kf7 Qd6 f6 Nd7 Bg6 Rd8 a8Q Bc8 Qb8+ Ka6 Bf5 Qf4 Qe5 Rh2 Rgg2 Rf3 Be4 Nc6 Kg6 Qb7 f7 Rh5 f8N Nd4 Ne6 Rf8 Ng5 Nf6 Nh3 Ne8 Rge2 Qh4 Rf2 Rb3 Rf7 Be6 Rc7 Ne2 Rd2 Qc6 Bb1 Qd4 Rc2 Qd2 Bf7 Rhg8 h8N Qd6 Kh7 Qd7 Bg6 Rf7 Qg5 Rgf8 Qe5 Rff3 Nf7 Nf4 Nfg5 Rf6 Kh8 Qh2 Bh7
2Rb1q2/bB1B1P1R/5rQP/bN1nr3/KN1QBpb1/5RN1/7P/kq4B1 b - - 0 1 legal: proof: d4 b5 g4 f5 e4 h5 gxh5 e5 f4 c5 fxe5 b4 dxc5 f4 a3 Nc6 axb4 Nce7 b5 Nf5 exf5 Qh4+ Ke2 Qf6 Ke1 Qd8 Kd2 Kf7 Kc3 d5 Kb4 a5+ Ka4 g5 b4 d4 c4 d3 f6 Ke6 c6 d2 h6 g4 c5 Kd5 c7 Kd4 c6 g3 e6 g2 e7 Bf5 e8B Bh7 c8R Qd5 b6 Ra7 b5 Qd8 b7 Ba3 b8Q Qe7 c7 Bf5 b6 Bg4 b7 Qf8 Bd7 Be7 Na3 Kc3 Bd3 Bd8 Be4 Ne7 f7 Ra6 Nb5+ Kc4 Ra3 Rf6 Bb2 Nd5 Ne2 g1B Ng3 Ba7 Rf3 Rg8 Re1 Rg5 Rg1 Rh5 Qb1 Re5 Bc3 d1Q+ Qc2 Bf2 Qa7 Qb1 b8N Bd4 Nc6 Bb6 Qb8 Bd4 Nb4 Ba7 Ka3 a4 Qb6 Qe1 Qb1 Qf1 Bd4 Qe1 Kb2 a3+ Kc2 a2 Qd1 Rff5 Qg6 a1B Rg2 Rf6 Bg1 B1d4 Qa1 Be3 Kb2 Qd1 Ka3 Qb1 Ka4 Bab6 Rb8 Bed4 c8B Ba5 Bb7 Ba7 Rc8+ Bc5 Qh5 Be6 Nf1 Bh3 Rg7 Bg4 Nc7 Ba7 Qg6 Qd3 Qd1 Kc3 Ng3 Kb2 Nb5 Qb1 Rh7 Ka1 Qd4+
1NNR2Br/5n2/2R1Q1Q1/1B3P1P/N1PK3b/BN1nrk2/n2Rbnp1/6r1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Bb7 dxc5 Qb6 a4 Ba6 axb5 a4 Bc4 Qa5 bxa5 Bb7 Bf1 Bc8 Kd2 Kf7 Ke3 Kf6 h4 Ke5 f4+ Kf6 c6 e5 b6 g5 a6 d5 b7 g4 c7 e4 h6 a3 a7 g3 h5 a2 h7 g2 Bb5 Be7 c4 Bd6 Qg4 Be7 Nc3 Nc6 b8N Nh6 Ba3 Nf7 Na4 Nb4 Kd4 e3 Nf3 e2 Rhd1 e1N Nd2 Ned3 Nb3 Bb7 Rab1 a1R c8N Na2 Rd2 Bc6 Rbb2 Rg1 Rb1 Re8 h8R Bd8 Rbd1 Re3 Qe2 Be7 Rd8 Bd7 Na6 Rb8 a8B Be6 Rd6 Bd8 Rc6 Be7 Na7 Rh8 Nb8 Rg8 Rb2 Ndc1 Rd6 Nh8 Kc5 d4 Nc8 d3 Bd5 Bd8 Rc6 d2 Qe1 Kg7 f6+ Kh6 Qg3 Bg4 f5 Kg5 Qe5 Be2 f7 Kg4 f8Q Bh4 Qff6 Rf8 Bf7 Kf3 Qee6 Re8 Qg6 Rg8 Re1 d1N Kd5 Nf2 Rd1 Re8 Kc5 Rg8 Rd8 Ncd3+ Kd4 Rf8 Rd2 Re8 Bg8 Nf7 Bh7 Rh8 Bg8
r3nQ1n/bBQ1RR1p/4P3/2rr1P1N/n1B3R1/nk4BR/1P2b2N/6KN b - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 f5 e4 d5 cxd5 e5 exf5 e4 a4 Bc5 axb5 Qf6 d4 Qe5 dxe5 Bf8 g4 Kf7 f4 c5 Kf2 a5 d6 c4 g6+ Ke8 d7+ Ke7 d8R c3 b6 c2 f6+ Ke6 b7 a4 g7 a3 f5+ Kf7 g5 a2 Nh3 e3+ Kg1 e2 Nd2 e1R Nf2 Nc6 b8R Re4 Bg2 Ba6 Rh3 Be2 Nh1 Rd4 Rb7+ Nce7 Nf1 Rd5 Bf4 c1N Bg3 Nd3 Nh2 Nc5 Qc1 Na4 Rdd7 Rc5 Rb1 a1N g6+ Ke8 Rbc7 Nc2 Bb7 Na3 Rd4 Rd8 Rg4 Rdd5 f7+ Kd8 Qf4 Nf6 g8N Ne8 g7 Ng6 Nf6 Rg8 Qc4 Nh8 Re1 Bd6 Re7 Bb8 Nh5 Rf8 g8B Ba7 Re6 Kc7 Re7+ Kb6 Rd1 Rd8 Rdd7 Ka5 Rc7 Rdd5 Rcd7 Nc7 Qc1 Rb8 f8Q Ne8 Rf7 Kb5 Rde7 Ra8 Qc3 Rd4 Qa5+ Kc4 Qc7 Kb3 Rfg7+ Kb4 Bc4 Rd2 e6 Rdd5 Bca6+ Kb3 Rgf7 Bb8 Bb5 Ba7 Bc4+
Q2rk3/5bB1/1K4Q1/3NrR2/Rb2p1B1/NBR1P1P1/1qNqrP1b/2q3N1 b - - 0 1 legal: proof: b4 b5 a4 f5 c4 d5 cxd5 g5 g3 a5 axb5 a4 Bg2 Nc6 Bf1 Na5 bxa5 f4 Ra2 g4 Ra1 Nf6 gxf4 g3 f5 g2 Ra3 Nh5 Ra1 Ng3 hxg3 Bh6 Nc3 Bg7 Nb1 Bf8 d4 c5 Kd2 h5 Ke3 e5 b6 c4 b7 e4 b8Q c3 d6 a3 f6 a2 a6 c2 d7+ Kf7 d5 h4 Kd4 h3 a7 h2 d6 Rh3 Kc5 Qe7 d8N+ Ke8 f7+ Kd7 e3 Qe6 Nc6 Qf5+ Kb6 Qf4 Be2 Bh6 f8R Qg4 Rf5 Qg6 Nb4 Bf4 Nd5 Ke8 Bg4 Rh5 Bb2 c1Q Bg7 Be5 Qd3 Bc3 Na3 Bb4 Qa6 Qb2 Rc1 a1R Rc3 Re1 Qbb7 Be6 d7+ Kd8 Qc6 Re2 Qd6 Rc8 a8B Bf7 Bc6 Qd2 Ba4 Qf6 Qa8 Qe5 Qg6 Qf6+ Rc6 Qfb2 Rc3 Rg5 Bb3 Rh5 Nh3 Rg5 Re1 h1Q Ra1 Qhc1 Ng1 Rh5 Nc7 Ke7 d8N Rg5 Nde6 Rd8 Nd5+ Ke8 Nd4 Rh5 Ngf3 g1B Ndc2 Bh2 Ng1 Rg5 Nb1 Rh5 Ra4 Rg5 Nba3 Rh5 Rf3 Re5 Rf5
q2rqB2/QnN1Q3/3BnRQQ/4P3/1p1qR2N/P2BP2b/K4n2/2N2k1q b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 e5 fxe5 a5 b4 f5 bxa5 g5 g4 f4 h3 Bh6 h4 Ra6 Na3 Rf6 Nb1 Rf5 gxf5 g4 Bh3 Kd7 Bf1 Bg5 hxg5 Ke8 e3 Kd7 d4 c5 Kd2 h5 Kc2 h4 Kb2 c4 g6 g3 d6 Kc6 g7 Kd5 d7 Ke4 a6 g2 f6 h3 a7 f3 a8Q+ Nc6 d5 h2 d6 f2 f7 Nh6 g8Q Ng4 Nf3 g1Q Qa7 Qg2 Nbd2+ Kd5 a3 c3+ Ka2 c2 Nb3+ Ke4 Bd2 Na5 Bb4 c1Q Qf8 Qc4 Qh6 Qd4 Be2 Qg8 d8N f1N d7 Nd2 Bd6 b4 Ne6 Qd8 Rf1 h1Q Nh4 Nf3 Nc7 Ng5 Rg1 Qe7 d8Q Be6 Qd7 Rd8 f8B Qe8 Qe7 Bf5 Qd2 Ne6 Raf1 Qf3 Qb2 Qfg2 Rf3 Nf2 Nc1 Bh3 Rf6 Qf3 Bb5 Qfg2 Bf1 Qf3 Qe2 Qfg2 Qeh5 Qf3 Ne2 Kd3 Rg4 Qa8 Re4 Nb7 Nc1+ Kd2 Bd3 Ke1 Bc2 Kf1 Q5g6 Qg1 Bb1 Qh1 Bd3+
B5qr/2Qn4/4b1R1/3pq2N/qkPBq1BK/2PQQNQ1/n2NP2R/2n5 b - - 0 1 legal: proof: f4 a5 g4 b5 a4 e5 axb5 f5 d3 c5 fxe5 g5 h3 c4 dxc4 f4 h4 Bh6 Ra3 Ra6 Ra2 Rf6 Ra1 Rf5 gxf5 g4 Qd4 Ba6 Qd1 Bg5 hxg5 Bc8 Kf2 Ke7 b4 h5 g6 d5 f6+ Kd7 f7 a4 f8Q h4 b6 Kc6 b7 f3 b5+ Kb6 e6 Ka5 e7 h3 Kg3 f2 e8B a3 b6 a2 g7 h2 Bc6 Rh6 Bb2 Na6 b8Q Qe7 b7 Nb4 Qe8 Nf6 g8N Be6 Nf3 Rh8 Qd3 Nd7 Bh3 f1Q Nbd2 Qg7 Rc1 a1N Nf6 Nb3 Bd4 Na2 Nh5 Kb4 Qc7 Qe5+ Kh4 g3 Bg4 g2 Ra1 g1Q b8Q+ Ka3 Bb7 Kb4 Rd1 Nbc1 Ba8+ Ka4 Re1 Qfg2 Rd1 Qge3 Rdg1 Q3e4 Qbd8 Kb4 Qg5 Qg6 Qf4 Qg8 Qg3 Qf2 Rg2 Qf1 Rhg1 h1Q+ Rh2 Qe1 Nf1 Qc3 N1d2 Qb3 Rg2 Qa4 Qe7+ Qd6 Qg5 Qe5 Qge3 Qe4 Rg1 Qe5 Ng5 Nb8 Qh3 Qa3 Bf5 Rh7 Qg4 Qhe4 Ngf3 Qa6 Qgf4 Rh8 Rg6 Qa7 Bg4 Qa4 Qg3 Nd7 c3+
rn2B3/1n2QqBk/4q2P/2Rq1b1R/8/1R1P1RQ1/P1p2Nn1/2NQNn1K b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 h4 c4 Bd7 cxd5 Bc8 Ke2 g5 Qb3 b5 Qf3 Rh5 gxh5 g4 Qe4 g3 Qg4 g2 Kd1 Bg7 Ke1 Be5 Qd1 Bg3 hxg3 Ra6 Qc2 Rh6 Qd1 Rh8 f4 Kf8 Kf2 Kg7 a6 e5 h6+ Kh7 f6 c5 a7 e4 a8R b4 d6 h3 f7 c4 f8Q h2 f5 c3 f6 b3 g4 c2 f7 b2 g5 Bh3 d7 Qe7 d8N Qc7 Nc6 Kg6 Ra5 Qd6 Qe7 Qd8 f8R Bg4 Ne5+ Kh5 g6 Qe8 g7 Nf6 g8Q Qf7 Bb5 Nfd7+ Nef3 Nc5 d3 Bf5 Ne2 Nb7 Nbc3 b1N Qg3 Nd2 Be8 Nf1 Ne1 e3+ Kf3 g1N+ Kg2 Nh3 Ne4 Rg8 Bb2 Nf4+ Kf3 Ng2 Rc5 Rh8 Nc1 e2 Bg7 Rg8 Rb1 Rh8 Qf2 Kg6 Qg3+ Kh7 Nf2 Rg8 Rg1 h1Q Rb3 Qh3 Rh1 Qhh5+ Ng4 Qg5 Rh5 Rh8 Kf2 Rg8 Kg1 Rh8 Nf3 e1Q Nf2 Qee6 Kh1 Rg8 Rh3 Qgh5 Ne1 Qf3 Rh5 Qfd5 Be5 Rg4 Bc3 Ra4 Bg7 Ra8 Qf4 Qg8 Rf6 Qgf7 Qg3 Bg6 Rf4 Bf5 Rf3
NNn2N1r/1PQ1R1b1/p3n2k/K1P2BB1/B7/3B1n1Q/q1P1Q3/q2qR2q b - - 0 1 legal: proof: d4 b5 g4 f5 f4 c5 dxc5 e5 a4 g5 axb5 a6 fxe5 f4 h3 Bb7 Be3 Be4 Bd2 Bf5 gxf5 g4 Bc1 g3 Nd2 Nc6 Nb1 Rc8 Ra4 Nb8 Ra1 Rc6 Ra2 Rg6 Ra1 Rg4 hxg4 Bg7 Qd2 Bh6 Qd1 Bf8 Kd2 Kf7 Kc3 Kg7 Kb4 d5 e4 h5 b6 d4 e6 g2 f6+ Kg6 e5 d3 e7 h4 e8Q+ Kh6 g5+ Kh7 b7 h3 f7 h2 e6 d2 e7 f3 g6+ Kg7 Qe2 d1Q Nc3 f2 Nf3 g1Q Nb5 Q8d6 Ne5 Rh5 Ka5 Rh4 b4 Qd8+ Nc7 Q1d4 b5 Rf4 b6 Re4 Qd7 Qd5 e8B Qg2 Na8 Qh3 Bg5 Qe3 Re1 Rh4 Qh3 Nd7 b8Q Ne7 Qc7 Qed4 b7 Rh8 Bh4 Nc8 Nc6 Kh6 Nb8 Bg7 f8N Qg8 Rg1 h1Q Rg4 Qd1 Re4 Qf6 Re7 Qfd4 Qee6 Qe5 Bd3 f1N Bf5 Qb2 Qe2 Nh2 Bd3 Nf3 Bf5 Ndb6 Ba4 Qga2 Bd3 Qba1 Bf5 Bf6 g7 Nd5 g8B Bg7 Bgh7 Nf4 Bd3 Ne6 Bhg6 Na7 Bgf5 Nc8 Bg5+
4Nb1k/Pp1N2bb/2n3PB/5K2/2QP1nRq/1B6/N1B2nbR/Qb1B1Q2 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 d5 bxa5 e5 fxe5 f4 c4 Ne7 cxd5 Ng8 Bg2 g5 Bh3 h5 Bf1 Ra6 h3 Rf6 h4 Rf5 gxf5 g4 Bg2 Rh7 Bh3 Rg7 Bf1 Rg5 hxg5 Bh6 Ba3 Bg7 Bc1 Bf8 Kf2 Kf7 a4 Kg7 d4 c5 e4 g3+ Kf3 h4 Kg4 f3 d6 f2 g6 c4 e6 c3 e5 g2 d7 c2 f6+ Kh8 a6 h3 a5 h2 f7 Kg7 e7 Qc7 e8B Qc6 e6 Qb5 d8Q Qd5 a7 Qd7 a8N Ne7 a6 Qc6 a7 Kh8 Nc7 Bh6 f8Q+ Ng8 Kf5 Qd6 Ba4 Nc6 Nf3 g1N Bc4 f1B Ne8 Qg3 Qc7 Nh3 Bcb3 Nf4 Ne5 Qh4 Nd7 Bg2 e7 Bg7 Nc3 Bd5 Be3 c1B Na2 Ba3 Bc2 Bb4 Bab3 Bg2 Rg1 h1B Qe1 Bd5 Rg4 Bhg2 Qc3 Bc5 Rh1 Ba3 Qf7 Nf6 Qa1 Ne4 Rh2 Nf2 Qf8+ Bg8 Bd2 Nb4 Qc4 Nc6 Qff7 Bb4 Qcf1 Bh7 Q7c4 N4h3 Bh6 Nf4 Nc7 Bc5 e8B Bb4 Bf7 Bbf8 Ne8 Be5 Bd1 Bf3 Ba4 Nb4 Qcd3 Ne6 Nb8 Bg2 Qde2 Beg7 Qa6 Nc7+ Kf4 Bf5 Nd7 Bb1 Bac2 Nc6 Bfb3 Ne6+ Kf5 Nf4 Qac4
3Q1q2/1K1nN1N1/3N4/2qNR1BR/n1bpP3/PbBP1qQ1/2B2n2/kR1q4 b - - 0 1 legal: proof: c4 b5 b4 e5 f4 a5 bxa5 b4 fxe5 Ra6 Qc2 Rb6 Qd1 Rb5 cxb5 Bb7 Nc3 Ba6 Nb1 Bc8 g4 h5 h3 f5 Qb3 g5 Qa4 f4 Qd1 Bh6 h4 Rh7 Na3 Rf7 Nb1 Rf5 gxf5 g4 Bb2 Kf7 Bc1 Bg5 hxg5 Ke8 Kf2 Ke7 e4 d5 f6+ Ke6 g6 c5 a6 b3 g7 h4 b6 c4 a7 f3 Ke3 b2 Kd4 h3 Kc5 g3 a8Q h2 f7 g2 f8B d4 b7 c3 Bd3 f2 Qg4+ Kf7 e6+ Kf6 e7 Ke5 e8N f1B Bc2 Nf6 g8N Be6 Ne2 g1Q Nd6 Bb3 Ne7 Nbd7+ Kc6 Qe3 b8R Nd5 a3 Qf3 Kb7 N5b6 Ng3 Na4 Ra2 Bfc4 Ngf5 Qe8 Qg1 Kf4 Ng7 Qf7 Re8 Qf5 Bd1 c2 Nc3 b1Q Qd8 Qa1 Bb2 c1Q d3 Qab1 Qg2 Ke3 Qg3 Kd2 Bc2 Qcd1 Ba1 Kc1 Rb2 Qc5 Ncd5 Qdf1 Nc6 Q1d1 Re5 Qa2 Be7 Qf8 Rf1 h1N Rff5 Nf2 Rh5 Qb1 Bf6 Qg4 Nce7 Qf3 Bd1 Qc2 Bg5+ Qd2 Rc2+ Kb1 Bc3 Qde2 Rb2+ Ka1 Bc2 Qd1 Rb1+
6Nb/1b3b1K/NnRnq3/q4PP1/1R1Q1R1R/1n1pBN2/k3P2Q/3BBn2 b - - 0 1 legal: proof: d4 h5 a4 a5 g4 c5 dxc5 f5 f4 b5 axb5 e5 fxe5 g5 Bd2 f4 Bc1 Rh7 h3 Rf7 h4 Rf5 gxf5 g4 Bh3 Ra6 Bg2 Rg6 Bf1 Rg5 hxg5 Qf6 Bh3 Qe7 Bf1 Qd8 Kf2 Kf7 b4 d5 c4 d4 e6+ Ke7 b6 f3 Kg3 a4 Kh4 a3 b7 a2 c6 Kd6 c5+ Kd5 c7 Kc4 b5 f2 c6 g3 b6 g2 e7 Be6 e8R Nh6 c8Q Qd6 c7 Kb4 Nc3 Qd7 Be3 Ka3 Ne4 Qb5 Nf3 g1N Nf6 Bc5 Bg2 f1N Ng8 Bc4 Rb1 a1Q Re4 Qe8 Rb4 Qe6 Rf4 Nd7 b8B Nf7 b7 Ka2 Qd8 d3 c8R Nb6 Qd4 Bd5 Rc6 Nd6 Bc7 Qc3 b8N Qa3 Na6 Qa5 Qe1 Bc4 Qf2 Bd5 Qc3 Bd4 Rh2 Bh8 Qd4 Qe4 Qg3 Bf7 Rh1 Qe7 Qh2 Qe6 Bb8 Nh3 Ba7 Nf2 Bd2 Nfe4 Be1 Nbc4 Qd5 Ned2 Be3 Nb3 Qd4 Qd7 Ne5 Qe7 Bd5 Nb6 Nf3 Qe5 Bc4 Qe6 Bb5 Qd7 Ba4 Qe6 Kh3 h4 Kg4 h3 Kh4 Nc5 Bd1 Nb3 Nf6 Bg8 Kh5 Bf7+ Kh6 Bg7+ Kh7 Bh8 Qf2 h2 Qg2 Kb1 Ng8 Ka2 Rg1 h1B Qh2 Bg2 Rh4 Bh1 Rgg4 Bg2 Rf4 Bh1 Ne5 Be4 Nf3 Bd5 Rc3 Bb7 Rc6
n7/7q/N1BQQ3/1pbN1BKB/rP1Q1R1r/3P1bk1/RP2np2/n1N1B3 b - - 0 1 legal: proof: g4 h5 f4 e5 fxe5 d5 Kf2 d4 Ke1 d3 cxd3 Bd7 Na3 Bf5 Nb1 Bc8 gxh5 c5 a3 c4 Qb3 c3 dxc3 Qe7 Qd1 Qb4 axb4 Bd6 Na3 Bc5 Nb1 Bf8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 e4 f5 h4 b5 c4 a4 c5 g6 c6 a3 h6 a2 h5 Ra7 c7 Bd7 c8B Be7 h7 Nf6 h6 Na6 Kg5 f4 Nc3 f3 Qe1 f2 Rh4 Nb8 Be2 Rf8 h8Q Rd8 h7 Rg8 Nd5 Nc6 Bd2 Nd4 Rf4 Bc5 Bh5 Ne8 Ne2 Nc7 Nc1 Ra4 Qe3 Re8 Be1 Na8 Qf8 Ne2 h8Q Re7 Qhh6 Rh7 Qd4 Rh8 Rb1 a1N Qd8 Nc2 Ra1 Rh7 Ra2 Na1 Bb7 Bc6 Qb6 Kd7 e6+ Kd6 e7 Ke6 e8B Kd6 Qe3 Ke5 Bc8 Bb7 Bf5 Rh8 Kg4 g5 Bc6 Rh7 Kh3 g4+ Kh4 g3 Kg5 g2 Qg3 g1Q Qe6+ Kd4 Qd8 Qh1 e5+ Qe4 Qg4 Rh6 Qed6 Rh8 e6 Rh7 e7 Rh6 Nf6+ Ke3 e8N Qe7 Nc7 Qh7 Bf7 Rh4 Bh5 Ng3 Na6 Ne2 Bce8 Bh1 Bc6 Bf3 Nb3 Nc3 Nd5+ Ke2 Qh8 Kf1 Qd4 Ne2 Qh3+ Kg1 Qg4+ Kh2 Nc1 Nb6 Be4 Na8 Qge6 Kg3 Bf5
2n1R3/b1PR3P/2Kp3B/k3R2p/2NQ1qBr/3bR3/1P1NNb2/r2n1Q1Q b - - 0 1 illegal: No possible last move
3Q4/1Q4K1/1P4N1/4p3/1nRbnP1q/1QBq1rp1/P1N1bRBk/2NBQ1r1 b - - 0 1 legal: proof: g4 f5 b4 h5 gxh5 c5 d4 a5 bxa5 b6 axb6 f4 dxc5 f3 exf3 Rh7 f4 Rh6 f5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 g5 c4 d5 h4 e6 f4 g4 h6 g3 c6 Qe7 h5 Qa3 h7 Qa7 c5 Ba6 h6 Ne7 c7 Bb5 c8Q Bc6 Na3 Ng8 Bb2 Qe7 Nc2 Qa7 Bc3 Qg7 Qe1 Bd7 c6 Qe7 c7 Na6 Bg2 Ra7 Rc1 Bb5 Rh2 Bg7 Ne2 Nb4 Qb7 Ra3 c8B Ba6 Bd7 Bc4 Ba4 Qd8 Ke3+ d4+ Kf3 Rb3 Kg4 Bb5 Kh5 Bc4 Bd2 Rf3 Bb3 d3 Bc3+ e5 Ba4 d2 Bb3 d1Q Ba4 Qe7 Bb3 Kf7 f6 Ke6 Kg6 Bf8 f7 Qh4 Ba4 Bd6 f8Q Bc5 Qd8 Qd3+ Kg7 Kf5 Qdd5 Ba6 Qc4 Nf6 Qb3 Rd8 h8Q Kg4 h7 Bd4 Qhg8 Rd5 h8N Ne4 Ng6 Rb5 Qd8 Rc5 Bh1 Bb5 Rf2 Kh3 Bg2+ Kh2 Ra1 Qd2 Nc1 Be2 Rb1 Qd3 Qc4 Rd5 Qd1 Be3 Qf1 Qd4 Na3 Nc6 Rb4 Qd2 Qb5 Qc2 Rc4 Rd1 Qb2 Qd3 Bb3 Re1 Bd1 Bd4 Qb3 Nb4 Bc2 Bd1 Qe2 Rh1 Qe1 Be2 Bd1 Rg1 Nc2
K1R1R2q/p1BR2r1/Q2P2Pb/3B4/N1N2PqQ/2r1pB1n/b1k3R1/4n2N b - - 0 1 legal: proof: b4 b5 e4 c5 bxc5 f5 exf5 d5 c4 g5 cxd5 g4 a4 g3 axb5 Be6 hxg3 Bd7 g4 Be6 g5 Bc8 Ke2 Kd7 Ke3 h5 Kd4 e6 g4 h4 c6+ Kd6 f6 h3 f7 h2 g6 Na6 b6 Qe8 b7 Rh6 b8R Rh4 g7 Be7 f8R Nh6 g8B Qf7 c7 Bd7 c8N+ Kc7 d6+ Kc6 Ra2 Nb4 Bg2+ Nd5 Nb6 Kb5 Bf3 Kb4 Rfe8 Qg6 Nc3 Qc2 Qf1 Kb3 Kc5 e5 d4 e4 g5 Nf5 g6 Ba4 Ne2 Rh8 Nc4+ Bb5 Ng3 Rh7 Na4 Nf4 d5 Bf8 Rbc8 Nh3 Bf4 Bh6 d7 e3 d8Q Qe2 Bc7 Nh4 d6 Ng2 Qh4 Rg7 Bgd5 Ne1 Rd2 Ba6 Kc6 Bb5+ Kb7 Bd7 Bfe4 Be6 f4 Qg4 Bf3 Bg8 Rc2 Bf7 Rg1 h1Q Rgg2 Be6 Rcd8 Rc8 Rd7 Bf7 Rc1 Qh2 Ra2 Qb2 Nh1 Qf6 Rg2 Qd8 Ree7 Qh8 Re8 Rb8+ Kc6 Qf8 Ne5+ Kb4 Bde4 Kb3 Bd8 Ra8 Kb7 Bc4 Bd5 Rc8 Bb6 Rc7+ Ka8 Qh8 Qe2 Kb4 Rc2 Ba2 Qa6 Rc5 Rc4+ Kb3 Bd8 Rb5 Ba5 Rb4 Rcc8+ Rc4 Bb7 Rc3 Bc7 Ng1 Nc4 Nh3 Rg3 Kc2 Bbd5 Bb3 Rg1 Ba2 Rg2+
1qbn2r1/1Rk2NBn/1R2b1p1/1R1PN1n1/P1N1Q3/6K1/BPQR2p1/1B4b1 b - - 0 1 illegal: Other
2b1BKN1/pR4rk/2R3N1/QpB3R1/3PPN1n/nr1PQ1q1/B7/3Nnr2 b - - 0 1 legal: proof: b4 b5 g4 d5 f4 h5 gxh5 c5 bxc5 e5 fxe5 d4 a4 d3 cxd3 Bd6 d4 Bc7 a5 Bb6 axb6 Qd5 Nf3 Qd6 Ng1 Qd8 Kf2 Kf8 Kf3 f5 Kf4 g6 e4 Kg7 h4 Qd5 Kg5 f4 c6 f3 c7 f2 h6+ Kh7 h5 Nd7 b7 Ngf6 b8R Kg8 h7+ Kg7 h6+ Kf7 Qb3 Qc4 e6+ Kf8 e7+ Kf7 e8B+ Kf8 Rh5 Rg8 h8Q Qc2 h7 Qd1 Kh6 g5 Rb7 g4 Qe3 g3 Ne2 g2 Nbc3 g1N Ra6 Qb3 Nd1 Nc5 Nf4 Nf3 Rc6 Nd3 Rg5 Nde1 Bc4 Nd5 Ba3+ Nb4 d3 f1R Qe5 Rg7 h8N Nh4 Bd5 Qb2 Ba2 Qf2 Qd5 Qg3 Qd8 Rf7 Nhg6+ Kg8 Rbb6 Rb8 Rb7 Nbc2 Bb4 Na3 Bc5 Be6 c8N Rg7 Qa5 Ra8 Kh5 Kh7 Nce7 Rc8 Ng8 Rcc7 Rd5 Bg4+ Kg5 Bc8+ Kf6 Rf2 Re5 Rb2 Rf5 Rb3 Rg5 Rcd7 Bf7 Rd5 Ke7 Rf5 Kf8 Rf6 Ne2 Rf2 Nef4 Rf1 Be8
1Q2nR2/p2KPNpR/N1P1r3/PrbB1nR1/1q1B1rR1/2Qn4/1k6/6QN b - - 0 1 legal: proof: d4 e5 dxe5 h5 g4 c5 gxh5 c4 e4 c3 f4 b6 f5 Ba6 bxc3 Be2 c4 Bd3 c5 Bb5 Qd3 Bc4 Qd1 Be6 fxe6 Qe7 Qd5 Qf6 Qd1 Qd8 Ke2 Ke7 Kf3 d5 Kf4 f5 a4 b5 c4 d4 h4 b4 h6 b3 c6 d3 a5 b2 h5 d2 c7 Qe8 c8R Qd8 c5 Na6 c6 Nc5 h7 Nb7 h6 Qd4 Na3 b1Q Bc4 Qd5 Nc2 Qd4 Rh4 Nd8 Nb4 Qdb2 Ne2 Rb8 Rg4 Q1c2 Na6 Rb6 Ng3 Qbc3 Qg1 d1N Be3 Qa2 Bd4 Nf7 Nh1 Rb5 Bd5 Qac2 Ra3 Qe1 Rag3 Qb4 Rg5 Nd6 R3g4 Nf6 Ra8 Rg8 h8N Qcb2 h7 Q2c3 Nf7 Nf2 h8R Nfe8 Rh7 Rh8 Rgh5 Rg8 Kg5 f4 Kg6 f3 Rhg5 Nc8 Kf5 Nd3 Rb8 f2 Ra8 Nc7 Rb8 Ke8 Ra8 Bc5 Rb8 Kf8 Ra8 Rh8 e7+ Kg8 e6 Ne8 e5 f1R+ Kg6 Rf4 Rb8 Ned6 Ra8 Nf5 e8Q+ Bf8 e7 Ncd6 Qb8 Ne8 Rh2 Rh3 e6 Re3 Rh3 Nf6 e8Q Re2 Qed8 Ne8 Rh7 Bc5 Qdc7 Kf8 Qe5 Ke7 Qee3 Re1 Qef2 Re2 Qfe1 Re5 Kh5 Kf6 e7 Rf2 Bf3 Ke6 Kg6 Re4 Bg2 Kd5 Bf3 Kc4 Bg2 Kb3 Bf3 Rf4 Bd5+ Ka3 Qc7 Ng3 Qce5 Nf6 Rf8 Kb2 Qb8 Rg2 Nd8 Rh2 Kf7 Ne8+ Ke6 Nf5 Kd7 Rh6 Nf7 Re6 Qxc3+
4q1NQ/K2n1q1B/Q1qB4/2BB4/P4Pbn/RpbP2R1/Q1N2p2/2Rk2r1 b - - 0 1 illegal: No possible last move, all moves rejected
1r5R/1r1QqBK1/k5P1/B2B4/n2P3P/Q1N1pRp1/1q1Q3N/br2b1RR b - - 0 1 legal: proof: d4 b5 a4 d5 axb5 h5 g4 c5 dxc5 d4 gxh5 d3 f4 g5 Kf2 d2 Kf3 Bf5 Ke3 Bd3 exd3 Qd7 Ke2 Qd8 Nh3 g4 Kf2 Na6 Ng1 Nc7 Ke3 Ne6 Ke2 Ng5 fxg5 Qb8 Bg2 Qc7 Bf1 Qd8 Ke3 Kd7 Ke4 Kc8 Kf5 Kb7 h4 a5 c4 e5 b4 a4 b6 e4 h6 g3 g6 f6 c6+ Ka6 c5 e3 b5+ Ka5 b7 a3 b8Q a2 h7 Ra7 c7 Be7 c8Q Rd7 d4 Bf8 c6 Bd6 c7 Ba3 b6 Bd6 b7 Qe8 Nf3 Qe7 Nc3 Bb4 Bg2 Ka6 Nh2 Ba5 Qc2 d1Q Bd2 Qb1 Bd5 Qb2 Rag1 a1B Qf8 Bb4 Qbe8 Ba5 c8B Bb4 b8R+ Rb7 Kg4 f5+ Kh5 f4 Qd7 Nf6+ Kh6 f3 Be1 f2 Qd2 Rg8 h8R f1R Bf7 Nd5 Kh7 Qe5 Qc5 Ba5 Qa3 Qe7 Kh6 Re8 Kg7 Nb6 Rf8 Na4 Ra8+ Kb6 Rh8 Bb4 Ra5 Rf8 Rf5 Ka6 Rf3 Ba5 Qh3 Bb4 Be6 Rfb8 Bd5 Ba5 Qd7 Bb4 Bf2 Rb1 Be1 Rb5 Ne4 Rf8 Qdc3 Rb7 Bd2 Rfb8 Qc2 Bd6 Ba5 Bb4 Qg2 Bd2 Nc3 Be1 Qd2
2B3K1/5R1N/QRp1qB1Q/P1b1P1np/4r1nb/3q2q1/1P1NQ3/k1BQ3N b - - 0 1 illegal: No proof kernel
Q1nk4/1Rb1qb2/1pB1P3/4P1Q1/1Nq1R1r1/2Pb2Bp/1QN1B1r1/R2K1R2 b - - 0 1 legal: proof: d4 a5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 Nc6 gxf5 g4 b4 Nd4 bxa5 Ne6 Nf3 Bh6 Ng1 Ng5 hxg5 Bf8 a4 d5 e4 h5 e6 h4 c6 b6 c3 g3 f6 g2 f7+ Ke7 c7 d4 e5 d3 g6 h3 a6 Bg7 f8R Rh5 a7 Bh8 g7 Rh6 a5 Qe8 a6 Qd7 Qe2 d2+ Kd1 Rh7 Nf3 g1Q Ne1 Qb5 Rf4 Qd5 Re4 Qc4 Nd3 Rh4 Na3 Qg5 Nc2 Rg4 Ndb4 Ke8 Qf2 Qe7 Be2 Bd7 c8B Kd8 Rf1 Be8 Bd7 Bf7 Bc6 Rb8 a8Q Rg2 a7 Rg4 Bd3 Rc8 Ke2 d1B+ Kd2 Bf3 Be2 Rg2 Ke1 Bg4 Kd2 Bf5 Kd1 Rb8 Bf4 B5g6 Re3 Bd3 Bg3 Rc8 Qb7 Rc7 Re4 Rd7 Qe3 Rd6 Qg5 Rd4 Re3 Rg4 Re4 Qf6 Qa6 Ne7 a8Q+ Nc8 Qa2 Qe7 g8R+ Kc7 Q8a3 Bf6 Rg7 Kd8 Q3b2 Qb7 Bf4 Be7 Rh7 Be8 Qh5 Bd6 Bg3 Bb8 Re7 Bf7 Qg5 Qd7 Qa6 Qd6 Ra7+ Qe7 Rb7 Bc7 Qa8
6k1/KRPB2bR/1NPN1BRP/Qrqn4/2n2r1p/1Q6/1n1Bq1Np/B7 b - - 0 1 illegal: Other
RN6/2p4K/1B4Bn/N2k1b2/Q1r1pQPP/qq3b1P/1B1BRq2/4NrQ1 b - - 0 1 legal: proof: e4 g5 a4 b5 axb5 d5 c4 h5 d4 h4 c5 g4 exd5 Nd7 g3 Ndf6 gxh4 g3 f3 Ng4 fxg4 Bh6 Bd2 Bf4 Bc1 Bd6 cxd6 Rh6 Ra3 Rh7 Ra1 Rh8 Ke2 Kd7 Kd3 e5 Ke4 a5 Kf5 g2 b4 f6 Kg6 f5 h3 f4 b6 a4 b7 a3 b8B f3 b5 a2 b6 f2 b7 Qe7 Bd3 f1B Na3 Ra5 Qa4+ Rb5 Bd2 Nh6 Rh2 Qf8 Nc4 Qf3 Na5 Rf8 Kh7 Qf2 Nf3 g1Q Ne1 Re8 Ba7 Qgg3 b8N+ Kd8 d7 Ke7 d8Q+ Kf7 d6 Ke6 d5+ Kf7 d7 Rf8 d6 Ke6 Bb6 Bb7 Bg6 Qb3 Qf6+ Kd5 d8Q Rc5 d7 Rc4 Qf4 Bd3 Qdg5 Bf5 d8B Bc6 Bf6 Ba8 Qg3 Bc6 Qg1 Ba8 Rd1 a1Q Qf4 Qaa3 Ra1 Kd6 Nc2 Bf3 Ne1 Kd5 Rg2 e4 Bb2 Qd4 Re2 Qf2 Ra2 Be6 Qf1 Qd6 Qf7 Qg1 Qa3 Bh1 Nac6 Qdc5 Qa6 Bg2 Ra4 Qca3 Q7f2 Qh2 Q1g1 Rf6 Qg3 Rf1 Qf4 Bf3 Qa8 Qf2 Qa6 Rc1 Qb5+ Rc5 Ra8 Bf5 Qa4 Rc4 Na5
rNK1Nq2/1Bp1Q3/3P3k/r4B1Q/2qn3R/B4Pp1/Bn1RP2R/1N1r2b1 b - - 0 1 illegal: No possible last move, all moves rejected
r2Q4/B5kR/1NR1QpNb/3Q4/B1n2R2/4PbPR/K2p2P1/1nBrr1b1 b - - 0 1 legal: proof: d4 c5 dxc5 a5 a4 g5 b4 e5 f4 b5 axb5 a4 fxe5 Qa5 bxa5 g4 Bd2 g3 hxg3 Ba6 Bc1 Bc8 Kd2 h5 Kc3 d5 Kb2 f6 c4 Kf7 c6 d4 b6 a3+ Ka2 d3 b7 h4 c5 h3 c7 h2 e3 Bd7 c8Q Bh6 a6 Bf4 c6 Rh4 a7 Rh8 e6+ Kg7 e7 Bh3 e8Q Rh6 c7 Bg4 Nc3 Nd7 b8B Nb6 Nh3 Bf3 Qed8 Ne7 Nd5 Nc4 Nb6 Nd5 Qe6 Rh7 c8R Bh6 Rc6 Nc3+ Kb3 a2 Nf4 Rh8 Ng6 Nb1 Qd2 Re8 Qa5 Re7 Qad5 Rd7 Be2 Rd6 Bd1 Rd7 Rf1 h1R Rf2 Re1 Bc2 Bd1 Rf4 Bf3 Bd1 Nc3 Rb1 a1B Bc2 Bb2 Ra1 Nb1 Ka2 Bc3 Ba4 Nba3 Rb1 Ba5 Rb5 Nb1 Rbc5 Rh1 Rb5 Be1 Rb4 Rf1 Rh4 Bf2 Rh3 Nca3 Rf4 Re1 Be5 Nc4 Bd4 Rc8 a8R Bg1 Qc7 Rd8 Qcd6 Ra7 Rac8 Rdd7 Rh8 Ra8 Qb8 d2 Qd8 Rb7 Nc8 Rb3 Ba7 Rc3 Nb6 Rc2+ Bb2 Rcc1 Ba3 Rcd1 Bb2 Nca3 Bc1 Nc4 Rh7+
3QrN1Q/P1bRbP2/8/1nrR1B1N/1npB4/7K/nrP1pNB1/1BkQ4 b - - 0 1 legal: proof: d4 c5 g4 f5 b4 a5 bxa5 g5 e4 d5 exd5 c4 h3 Qb6 Bd3 Qc7 Bf1 Qc5 dxc5 Be6 Bd3 Bf7 Bf1 Bh5 gxf5 g4 Bh6 g3 Bc1 Bg4 hxg4 Kd8 Nh3 Kd7 Ng1 Ke8 a4 Kf7 f4 Kf6 c6 e5 d6 b5 d7 h5 d8Q+ Ne7 a6 e4 c7 e3 c8B e2 a5 g2 Kf2 b4 Kg3 b3 a7 h4+ Kh3 b2 g5+ Kg7 g6 Kf6 g7 Rh7 g8Q Rh8 a6 Bg7 Q1d3 Nc6 Be3 Rh5 Ra5 Bh8 Nd2 b1R Rd5 Bg7 Qh8 Nb4 Rd7 Rb8 a8B Na2 a7 R1b2 Bc6 Rg5 Ba4 Rh5 Kg4 h3 Bb3 h2 Nh3 g1B Bg2 Ra8 Bb6 Bc5 Rd1 h1N Nf2 Ng3 Nf1 Ne4 Ng3 Nec3 Rd5 Rg5+ Kh3 Nb5 Rd7 Bd6 Be3 Bc7 Bd4+ Kf7 f6 Ke6 f7 Nc6 Nh5 Bf8 Rd2 Be7 Rd1 Rc5 f8N+ Kf7 f5 Ncb4 f6 Rb8 Nh7 Ke6 f7 Ra8 Qc3 Kf5 Nf8 Kg5 Qd3 Rb8 Ng3 Kf4 Rd5 Nac3 Ba2 Ra8 Bb1 Nca2 Qdh7 Rb8 Bf5 Ra8 Be5+ Ke3 Nh5 Rb8 Rd7 Rc8 R1d5 Ra8 Bd4+ Kd2 Qg6 Kc1 Qg3 Ba5 Qd3 Bb6 Qc7 Re8 Qd8 Bc7 Qd1+
R4r1b/3qNk2/2Q3r1/P3R1Pn/bRp4r/2K5/R1BQPpQN/B3B2r b - - 0 1 legal: proof: c4 a5 h4 h5 g4 g5 gxh5 e5 f4 d5 fxe5 g4 cxd5 Na6 b4 Nc5 bxa5 Ne6 Bb2 Bd7 Bc1 Ng5 hxg5 Bc8 a4 c5 d4 b5 Kd2 f5 d6 g3 d7+ Ke7 h6 f4 a6 f3 d5 f2 d6+ Ke6 a7 c4 a5 g2 h7 b4 Ra2 b3 Kc3 b2 Bd2 Qf6 d8R Qg7 d7 Rb8 a8R Rb4 Re8+ Be7 d8Q Bb7 Nf3 g1R Nh2 Bc8 Bg2 Rb8 Qd5+ Kf5 Be1 Kg6 Be4+ Bf5 Bc2 Nf6 Q1d2 Nh5 Qg2 Bf6 Re6 Rhg8 h8B Rbf8 Ree8 Qd7 Bg7 Bd8 e6 Rf1 e7 Kf7 Bd4 Rg6 Kb4 Nf4 Nc3 Be6 Nd5 Kg8 Nf3 Qc6 Rh3 b1R+ Bb2 Rd1 Ba1 Bd7 Rh7 Qe6 Kc3 Nh5 Rf7 Qh3 Rf5 Bc7 Reb8 Ba4 e8Q Bh2 Qc6 Be5+ Kb4 Bg7 Re5 Kf7 Ne7 Qd7 Kc3 Bh8 Rb4 Rg1 Qc1 Rd4 Qd2 Rh1 Nh2 Re4 Qd4 Rh4 Qd2
N2n4/k1Rn1QNb/2qQ2pP/K6p/b1BP2BP/2BBR3/5R2/1n1r2nN b - - 0 1 legal: proof: b4 b5 g4 h5 f4 e5 fxe5 d5 c4 a5 cxd5 g6 a4 Rh7 axb5 a4 g5 Ra5 bxa5 Bh6 gxh6 Rh8 h4 Kd7 d4 f5 Kd2 c5 Kc3 Kc7 e4 Kb7 e6 c4 Kb4 a3 d6 f4 b6 c3 e5 f3 d7 f2 e7 c2 e8N a2 e6 Qc7 d8R Qf7 a6+ Ka8 e7 Qh7 a7 Nf6 Ng7 Rf8 e8B Ba6 Bd2 c1N Nh3 Ne2 Rh2 Bc8 Bc3 Ng3 Bf7 Qg8 Qb3 Nfd7 Na3 Ba6 B7c4 Bb5 Bfd3 f1B Rc8 Ne2 Re1 a1N Nf2 Ng1 Nh1 Ba4 Re3 Nc2+ Ka5 Qe6 Nb5 Qc6 Rf2 Na3 Nc7+ Kb7 Na8 Nb1 Be6 Bg2 Bg4 Bd5 Qa2 Bg8 Qf7 Bb5 Kb4 Ka6 b7 Bh7 Bc4 Nc5 Bd3 Nbd7 b8Q Ne6 Qd6 Nd8 Bc4 Kb7 Ka5 Ba4 Nc7 Bb5 a8B+ Ka7 Bb7 Re8 Na8 Ba4 Bba6 Re6 Bd3 Re4 Bac4 Re8 Ref3 Re1 Re3 Rd1 Rc7+
R1RKQn2/1Q6/nnPk1Q1p/bP2NQ1n/N1p3B1/2N2qP1/r4B1b/2R5 b - - 0 1 legal: proof: d4 f5 h4 g5 hxg5 b5 b4 a5 e4 c5 exf5 d6 a4 Bb7 c4 Nf6 d5 Bc6 dxc6 Qd7 axb5 a4 b6 Qb7 b5 Qd7 b7 Ng8 b6 Ra5 Bd2 Rb5 cxb5 Qc8 Bc1 Qd8 Kd2 e5 Kd3 Ke7 Ke4 h6 Kd5 c4 f4 a3 g6 a2 g3 e4 g7 e3 f6+ Kf7 f5 e2 Qc2 e1N Nf3 Be7 Bh3 Nd7 b8Q Nf8 b7 Nd3 Bg4 Nc5 Nc3 Na6 Be3 Qd7 Qf2 Bd8 Rhc1 Ba5 Ba7 Qc8 Ne5+ Ke8 f7+ Ke7 Qc7+ Qd7 b8N Nf6+ Kd4 d5 g8Q Nh5 Qb7 Kd6 f6 Qe6 Nbd7 Qf5 Nb6 Qf3 Nba4 Rh7 Qg5 Rh8 Qf5 Rh7 Rab1 a1B Bb6 Bb2 Ra1 Rg7 Rcb1 Bc1 Ra2 Bd2 Rc1 Be1 Qe2 Bf2+ Qe3 Bg1 Ba7 Nd7 f8R Bh2 Rc8 Nf8 Qeg5 Re7 f7 Rc7 Qd8+ Rd7 Qe8 Re7 Nd7 Re2 Ra3 Ra2 Ne5 Qd1+ Ke3 d4+ Ke4 d3 Bf2 d2 Qf6+ Ne6 Kf5 Qf3+ Kg6 d1N Qf5 Bd8 Qf6 Ne3 f8Q+ Be7 Kf7 Nd5 Qf5 Nb6 Qh8 Bd8 Qhf6 Nb8 Nc5 Bc7 Ra8 Na6 N5a4 Nd5 Qg8 Ba5 Ke8 Nb6 Qfg7 Nef4 Kd8 Ng6 Qe8 Nf8 Qgf6+
3B1nQ1/1N1PQ3/2rb2NQ/6q1/Rb1bp1Pr/Bp2k3/PbB2Q1N/5K1R b - - 0 1 illegal: Other
R2N3b/R1Pb4/r2Q1b2/3B1P1b/k2p2pP/2n3QQ/n1Q2NNB/qR2K3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 g4 d4 Kf7 dxc5 Qa5+ Ke2 Ke8 g3 h5 Bh3 Qd2+ Kf1 Qh6 Ke1 a5 Bf1 Qg5 hxg5 h4 Ke2 h3 Ke1 Rh4 gxh4 Ra6 Rh2 Rh6 Rh1 Rh8 b4 e5 f4 d5 c4 Kd7 c6+ Kd6 g6 d4 b6 e4 b5 Kc5 c7 Kb4 b7 h2 f6 a4 f5 e3 b6 a3 c5 a2 g7 e2 f7 Ne7 g8R Rh7 c6 Kb5 Nf3 Rh8 Qb3+ Ka5 Nc3 Nd5 Ne4 Be6 c8Q Nf4 Nf2 Be7 f8N Na6 b8Q Rh6 b7 Bf6 Bg2 Bf7 Qd6 Nb4 b8Q Bh5 Ne6 Nfd5 Bf4 Nc3 Nd8 Bh8 Rf1 h1B Bh2 Rf6 Rb1 a1Q Qg3 Re6 Qbd6 Nba2 Qc2 Rf6 c7 Re6 Qb7 Rf6 Qh3 Re6 Qdg3 Ra6 Qc6 Bf6 Qcd6 Bh8 Qc1 Ka4 Rb7 Bf6 Ra7 Bh8 Ne5 Bf6 Nc4 Bh8 Ba8 Bc6 Ne3 Bd7 Bd5 Bf6 Ng2 Bh8 Kd2 Bf6 Qb2 Bh8 Rb1 e1B+ Kd3 Bd2 Qc2+ Ka5 Rf8 Bg5 Re8 Bgf6 Kd2 Be5 Ke1 Bef6 Nf7 Nb4 Rea8 Nba2 Qcd3 Ka4 Nd8 Bf7 Qe4 Bh5 Qc2+
QQ5B/2RN1N1p/1qR1K2n/8/nb2BR2/r1P1qP1p/3Qq1kP/1nB3R1 b - - 0 1 illegal: Other
2B3QR/2q1P1K1/R3pn2/1b1k1qn1/2NQp1nr/PQ6/1B3PBN/2N2N1q b - - 0 1 illegal: Other
k1N3q1/1Q1BRR2/2n1PKbb/4BRP1/qp4P1/1np5/3NnBB1/1q2N1Q1 b - - 0 1 legal: proof: e4 e5 f4 d5 exd5 Bf5 d6 h5 d4 a5 b4 b5 c4 g5 h4 e4 bxa5 Rh6 c5 Bc8 d7+ Ke7 d5 Kf6 hxg5+ Kg6 Rh4 Ra6 Rh1 Rd6 cxd6 Kf5 Qc2 Re6 Qd1 Re5 fxe5 Kg6 Ke2 Kf5 Ke3 c5 g4+ Kg6 Kf4 f5 a4 Kf7 a6 b4 a5 e3 e6+ Kg7 Ke5 c4 a7 f4 a8B e2 a6 e1Q+ Be3 c3 a7 h4 Bb5 h3 Nf3 h2 Ra5 Nh6 Nbd2 Nf5 Rf1 h1N Qa1 Qb1 Bf2 Qd1 Ne1 f3 Bac6 Qe8 d8R Ba6 a8N Nd4 d7 Qa4 d6 Nb3 Nb6 Ng3 Nc8 Ne2 Be4 Qf7 Re8 Qg8 d8Q Nc6+ Kf5 Bb7 d7 Ba6 Qb6 Bb7 Bc5 f2 d8B Ba6 Bg2 Bb7 Rh1 f1Q+ Bf2 Ba6 Bc7 Bb7 Nc2 Qb1 Rf1 Ba6 Bd3 Bc4 Qb7 Bd5 Bb5 Bc4 Ke4 Bd3+ Kd5 Bg6 Ne1 Bd6 Re7+ Kf8 Bb8 Be5 Ra7 Bg7 Be5 Bh6 Rf7+ Ke8 Re7+ Kd8 Ra5 Ncd4 Bd7 Qaa2 Rb5 Qa8 Qa7 Nc6 Qe3 Qa4 Qg3 Bg7 Qh2 Bf8 Qg1 Bh6 Bf4 Ne5 Bc5 Qf8 Bg3 Qg7 Rff7 Qg8 Bcf2 Nc6 Ra5 Na7 Ke5 Nc6+ Kf6 Ned4 Qa8 Ne2 Re5 Kc7 Qa6 Kb8 Rf5+ Nf4 Qb5+ Ka8 Qb6 Ne2 Be5 Nf4 Qb5 Ne2 Qb7+
5rr1/k5Pn/1r5Q/KpBN1P1B/B2R1nP1/2p1Q2R/3N4/q1RqqB1N b - - 0 1 legal: proof: e4 d5 h4 a5 b4 g5 bxa5 d4 hxg5 d3 cxd3 Be6 d4 Bf5 d5 Bc8 Be2 e5 Bd3 f5 Be2 f4 Rh6 Bc5 Rh1 Bf5 exf5 e4 Bf1 e3 Rh4 e2 Rh1 Be3 fxe3 Na6 Kf2 Nb8 Ke1 Kd7 g4 Kc8 d4 c5 Kd2 e1R Kc3 h5 a4 h4 e4 f3 e5 f2 e6 h3 a6 h2 a5 b6 e7 c4 Kb4 c3 e8B Re4 d6 Qc7 a7 Kb7 g6 Qe7 a6+ Kc8 g7 Qe5 d7+ Kc7 d8R Nh6 Qf3 Rf4 Bh5 Qd5 Ba3 Rh7 Nd2 Qe4 Ne2 Qe3 Rc1 Nd7 Ng3 Qe1 Qe3 Nf8 Kb5 Re4 d5 Ne6 Bc5 Nf7 Rd6 Rf8 a8B Kb8 Bc6 Rh6 a7+ Kc8 a8N Kb8 Rd8+ Ka7 d6 Nfg5 d7 Nf4 Nc7 Nh7 Nd5 Ree8 Kb4 Rg8 Ba4 Ref8 Kb5 Kb7 Kb4 b5 Ka5 Qd1 Rc8 Rg6 d8Q Rb6 Qg5 Ka7 Rd8 Qe1 Qh6 Qd1 Rg1 h1Q Rg2 Qe1 Rh2 Qf3 Rh3 Qfd1 Bc4 f1Q Nh1 Qd3 Rd6 Qb1 Bf1 Qa2 Ne7 Qb2 Rd4 Qa1 Nd5
3q4/2Q1NRBk/1n3BpN/QRb2NqB/R1NP4/2PK2Pq/2p5/2qb3r b - - 0 1 legal: proof: h4 d5 e4 f5 exf5 b5 a4 g6 axb5 Nc6 h5 Nb8 c3 Qd6 h6 Qf4 Ne2 Qd4 Ng1 Qg7 hxg7 Bd7 Rh3 Be6 Rh1 Bc8 Rh4 a5 Qc2 c5 Ke2 c4 Qd1 d4 Ke1 Ra7 Rh6 Rc7 Rh1 Nc6 Na3 d3 Nb1 Nd4 cxd4 c3 Be2 c2 Bf1 Rc3 dxc3 Kd7 Bf4 Kd8 Bc1 Ke8 Kd2 Kf7 b4 h5 f4 e5 b6 h4 g3 a4 b7 a3 b8Q e4 f6 h3 b5 a2 b6 h2 f5 Rh3 b7 Be7 Qc7 Rh6 b8N Bd7 Na3 Bc6 Nf3 Rh8 Be2 Bd7 Nc6 Bc5 Nh4 Ne7 g8N Nd5 Nc4 Nb6 Bh5 Kf8 f7 Kg7 f8R Kh7 Ke3 d2 Nce7 Be6 f6 Bg4 Qg1 d1Q f7 Qf3+ Kd2 e3+ Kd3 Qf6 Nhf5 e2 Ngh6 e1Q Bg5 Qee5 Qe1 Qf4 Qee5 Bd1 Rg1 Qd6 Bf6 h1Q Rb8 Qh3 f8B Qd7 Rf1 Qg5 B8g7 Qd8 Rf4 Nc8 Rb4 Nb6 Rab1 a1Q Ra4 Qa3 Rb5 Qc1 Rf1 Nc8 Qa5 Nb6 Qc7 Re8 Nc8 Re1 Rf4 Rg1 Nce7 Rh1 Nh4 Re1 Be5 Rf1 Rf7 Re1 Bef6 Rh1 N4f5
N2QQ3/RNbRPnP1/3p1K1Q/2qk2B1/1n6/1q2Nn2/p1B2P1r/3QRn2 b - - 0 1 illegal: No possible last move
1RNR1Q1R/2PbNb1k/q4Q1P/Pn1Q4/3N1qp1/N3p1b1/1B1r2B1/b1K5 b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 b4 Ra7 bxa5 b4 d3 Rb7 d4 Rb5 cxb5 c4 Bd2 Na6 Bc1 Nc5 dxc5 Bb7 Qf3 Ba6 Qd1 Bc8 Kd2 Kf7 f4 d5 h4 g5 a4 Kg7 a6 e5 a5 g4 a7 d4 a8N b3 c6 d3 h6+ Kh7 b6 e4 f6 b2 h5 Ne7 b7 Qd4 b8R Bg7 f7 Nf5 f8N+ Kg8 h7+ Kf7 c7 Qf6 Ng6 Rd8 h8Q Bd7 Ne2 Qa6 Na3 b1B Nd4 Ba2 Bb2 c3+ Kc1 c2 Bg2 Nd6 f5 Nb5 f6 e3 Qh6 Kg8 Nb6 Bf7 Nc8 Bh8 Qf8+ Kh7 Nge7 Bg7 Rh2 Bh6 Rb1 Bf4 h6 Bg3 Rh5 Bc6 Rd5 Rd6 Qf3 Bd7 Rg5 Rd5 Rg8 Rd6 Qa8 Rd5 Ba1 Rd6 Qd5 d2+ Kb2 d1Q Rc1 Qh1 Rd1 Qh4 Kc1 Qg5 Bb2 Qf4 Qd8 Bh5 f7 Bg6 f8Q Bf7 Qg5 Rd5 Ndc6 Rd2 Qf6 Bf5 Qd5 Bd7 Bc3 Re2 Nd4 Rd2 Kb2 c1B+ Kb1 Rd3 Bb2 Bd2 Kc2 Bc3 Kc1 Rd2 Qde5 Bc6 Ndc2 Rd7 Ba1 Rd2 Qeg5 Rf2 Rd8 Rd2 Qd5 Bb4 Be5 Bc3 Bd4 Ba1 Bb2 Bce8 Nd4 Bd7 Rh8#
R1Rr2nq/KP2BB2/1pPq2qk/2p1Q2r/1N1q4/8/NR2P1Bb/1B2Q1Q1 b - - 0 1 legal: proof: f4 g5 b4 d5 a4 c5 c4 e5 fxe5 g4 cxd5 g3 b5 b6 a5 Bd6 a6 Bb7 axb7 Nc6 bxc6 Bb8 hxg3 Bd6 g4 Be7 g5 Bf8 d4 h5 Kd2 f5 Kc3 Kf7 Kc4 Kg7 Kb5 a5 g4 h4 g6 f4 g5 f3 e6 f2 e7 h3 e8B a4 d6 h2 d5 a3 d7 a2 d6 Ra3 Nf3 Re3 Ka6 Re7 Nc3 Rh7 Ne5 Qb8 d8Q Rf7 d7 Re7 Qe1 Rh8 Bf7 Rh3 Qe8 Rh6 d8R Qc7 Rc8 Rh5 Bg2 f1Q Ka7 Rh8 Nd3 Nh6 Nb4 Rd7 Qe5+ Qf6 Rb1 a1Q+ Nca2 Rd6 Rb2 Rh7 Rf1 h1Q Rf3 Rd8 Ra3 Ng8 Bf4 Rh6 Bh2 Kh8 g7+ Kh7 Bg3 Qc1 Bh4 Rh5 g6+ Kh6 Ra4 Qf2 Be7 Qd4 Ra5 Qc2 Ra6 Nf6 g8B Qcd6 g7 Qg6 Bh7 Qh2 g8Q Qh1 Qh8 Ng8 Qhf6 Qhh4 Qff2 Qhf6 Qfg1 Qh8 Ra5 Bg7 Ra4 Bf6 Ra5 Bh4 Ra3 Bg3 Ra5 Bh2 Ra3 Qg3 Bb1 Qdg6 Kb8 Qgf4 Ra8 Qff6 Ka7 Qe6 Qf5 Qed6 Qe5
1K1b2rn/2n3P1/P4Qp1/pB2R1n1/2BPN1Nn/r2N1R1k/N2Rn3/Q5B1 b - - 0 1 illegal: No proof kernel
1KNbBQ2/1bp2PR1/B6N/P1n3BQ/2QR1R2/n1Pnknn1/2B4p/5q2 b - - 0 1 legal: proof: g4 h5 b4 e5 f4 f5 gxf5 a5 bxa5 g5 e4 b5 h4 g4 d4 Qf6 dxe5 Qd8 f6 Ra7 f7+ Ke7 f5 Rh7 Kf2 Rg7 Ke1 Rg5 hxg5 Ra6 Bd3 Rf6 exf6+ Kd6 e5+ Kd5 Bf1+ Kc6 Kd2 Kd5 Kc3+ Ke4 a4 d5 g6 g3 e6 g2 g7 h4 a6 h3 e7 h2 Kb4 d4 Kc5 d3 a7 b4 a8B+ Nc6 c3 b3 a5 b2 Nd2+ Ke3 Ne2 b1N Ng3 g1N Ra4 Qd7 Nc4+ Kf2 Qh5 d2 Nb6 d1N Bg5 Ne5 Be4 Ng6 Rd4 Nb2 Bc2 Na3 Ba6 Nh6 g8Q Nf3 Rg1 Bb7 Nc8 Bg7 f8Q Bc6 e8B Bb7 f7 Nge5 f6 Qh3 Nf5 Qf1 Rgg4 Nc6 Kd5 Nce5+ Ke6 Ned3 Kd7 Na4 Rg3 Ng4 Nh6 Ne3 Rg1 Nf5 Rgg4 Ng3 Rgf4 Bd5 Rg4 Ba2 Kc6 Bc4 Kb7 Nac5+ Kb8 Bb3 Bh4 Bh8 Rg7 Bd5 Bg5 Bc6 Qd6 Ke2 f8R Bb7 Qc4 Kf2 Rff7 Ke2 Qf8 Kf2 Rfd7 Ke2 Rf4 Ke3 Rh7 Bg7 f7 Bf6 Rg7 Bd8 Rdd4
B2Q1r1Q/Rn6/4NPnp/1R1n1Nq1/2r3np/2B1rkP1/N1Q1R1P1/N4K2 b - - 0 1 illegal: Other
4B1k1/1pq2NQ1/8/N2B1Q1P/pR1Nn3/2BP3K/bRP3nR/bB2bb1n b - - 0 1 illegal: No proof kernel
B3n2R/qQQPn2k/8/PN1RB3/1K3b1p/1Bnb1B2/N1p1nP1Q/3q2R1 b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 h5 b4 f5 exf5 a5 bxa5 g5 f6 Ra6 g3 Rc6 g4 Rc3 h3 Rf3 h4 Rf5 gxf5 g4 Rh2 Rh6 Rh3 Rg6 Rh1 Rg5 hxg5 Qd6 Rh4 Qd7 Rh1 Qd8 d4 Kf7 Kd2 e5 Kc3 c5 a4 g3 g6+ Ke8 a6 c4 a5 e4 d6 h4 f7+ Kd7 g7 e3 a7 g2 a8B e2 f6 Ke6 d5+ Kf5 d7 Kg6 d6 e1N Be2 Kh7 Bb2 Kg6 Kb4 c3 Qd5 c2 Na3 Kh7 Be5 Ba6 Qb7 Qc7 d8Q Nd7 Rd1 Ne7 Rd5 Nf3 Qdc8 Nd2 Bf3 Nb1 Ne2 g1N Nc1 Nc3 Na2 Nge2 Rg1 Qb6 Qcc7 Qa7 Kb3 b4 g8B+ Kh8 Nb5 Bh6 f8Q Bf4 f7+ Nf6 Kc4 b3 d7 b2 Qfb8 b1Q f8R Qd1 Bf7+ Kh7 Kb4 Nf5 Rd2 Ne8 Bb3 Ne7 Rd5 Bd2 Bd4 Bg5 Qh2 Bf4 Q8c7 Nf5 Be5 Ne7 Nd4 Bc4 Nb5 Bd3 Rh8#
1rk3b1/1pPB1q2/1R3Pp1/QQbNPB2/2N5/2Bq1N2/RK6/B2q1qrR b - - 0 1 illegal: No possible last move, all moves rejected
1Q2N2B/2qQ3B/3Q1b1K/1P3R1p/4rp2/3rkR2/N1Pn1pQP/B1R1b1r1 b - - 0 1 illegal: Other
3Q1N1K/1q5b/1Q2p3/pBr1n1BR/RB3Pb1/n2RNPp1/b5P1/Q3kB2 b - - 0 1 illegal: No possible last move
Q1N2KR1/7P/n1n1Q3/1B1R3q/NB2B2r/2P1p1Q1/1p3P1p/N1Qbbnk1 b - - 0 1 legal: proof: d4 b5 g4 a5 h4 g5 hxg5 h5 e4 f5 exf5 c5 dxc5 h4 b4 Rh5 bxa5 Ra6 gxh5 Rh6 Kd2 Rh7 Ke1 Rh8 Kd2 Kf7 Kc3 e5 Kb4 d5 a4 d4 h6 d3 f6 Ke6 g6 Kd5 g7 Kd4 f7 h3 h7 h2 a6 e4 a5 e3 a7 d2 a8B Be7 f8Q Bf5 a6 Bg5 c6 Bg4 a7 Bf6 c7 Nh6 g8Q Bh5 c8N Bf3 Qff7 Nf5 Na3 Ne7 Qg3 Qd5 Ne2+ Ke4 Rg1 Rd8 Qe6+ Be5 Qe1 d1N Bd2 Nb2 Rd1 Nc4 Bg2 Rf8 Bc6 Rf4 a8Q Rh4 Bc3 Nd2 Be8 Qb7 Kc5 b4 Bb5 b3 Bb4 Nf1 Rd5 b2 Qc1 Qa6 Qeg8 Qh6 Nc3+ Kf5 Na4 Ke4 Qe8 Qh5 Qf7 Bf6 Kd6 Nec6 Qfg8 Bc3 Qe6+ Ne5 Ke7 Na6 Kf8 Be1 Qh6 Nc6 c3 Na5 Nc2 Nc6 Bh3 Bg4 Na1 Bd1 Qe6+ Ne5 Qg7 Kf3 Qc7 Nc6 Rg8 Rc4 Bg2+ Ke2 Rd3 Rh4 Qg3 Nd2 Bf3+ Kf1 Bg2+ Kg1 Rd5 Nf1 Be4+
8/2B1P2n/P2b3q/1NnRQ1N1/2r1p1B1/K1p2pPR/n1BRN3/1Q3Nrk b - - 0 1 legal: proof: e4 g5 h4 e5 hxg5 d5 d4 a5 exd5 a4 d6 a3 d7+ Ke7 f4 b6 c4 Bb7 c5 Bd5 f5 Be6 bxa3 Qc8 a4 Qb7 a5 Qd5 Nd2 Qd6 Nb1 Bg7 fxe6 Kf8 cxd6 Bh6 d5 Kg7 Ne2 Kg6 Ng1 Bf8 Kd2 Kf5 Kc3 Ke4 Kb4 c5+ Ka3 h5 d8Q f5 d7 c4+ d6 c3 a6 h4 g3 b5 e7 h3 g6 f4 a7 f3 g7 h2 Qc7 Rh6 d8N Rh8 d7 Na6 Bf4 Nc5 Ne2 Rh3 Nf7 Rc8 a8N Nf6 d8R Nh7 g8B Bg7 Rd5 Kf5 Qb3 Kg4 Ng5 e4 Nd2 Be5 Rd1 Bd6 Qb1 Rh5 Qb8 Rc6 Nc7 Rh6 Rg1 h1Q Rg2 Qh5 Rh2 Qg6 Rh3 Rh5 Kb4 Qh6 a4 Rh4 Ka3 b4+ Ka2 b3+ Ka3 b2 a5 Rh5 Nb5 Rc8 a6 Rc7 Rh1 Rh2 Be5 Rg2 Rh3 Rg1 Bg2 Rc8 Nf1 Rc6 R5d2 Rc7 Bb3 Rc8 Qa2 Rc7 Bc2 b1N+ Kb4 Na3 Qb1 Nb7+ Kb3 Rc4 Rd5 Nc5+ Ka2 Nf6 R1d2 Nh7 Nh2+ Kf5 Bb3 Nc2 Qh8 Nb4+ Ka3 Na2 Bc2 Bc7 Nf1 Bb8 Bc7+ Kg4 Qd4 Nf6 Qe5 Nh7 Bd8 Bd6 Ba5 Qf6 Bc7 Qh6 Rh2 Qh4 Bh3+ Kh5 Bd7 Qh3 Ne6+ Kg4 Rh1 Qh2 Bc8 Kh3 Ng5+ Kg2 Bg4 Qh5 Rh3 Qh6 Nh2 Kh1 Nf1+
Qrk4n/KbpB2P1/5PR1/P1r1RN1b/R6B/4p2B/Q4q1p/NQrB4 b - - 0 1 legal: proof: e4 d5 h4 a5 b4 g5 bxa5 d4 hxg5 d3 cxd3 Be6 d4 Bf5 d5 Bc8 f4 Nd7 e5 f5 Bc4 Bg7 Bf1 Bf6 exf6 e5 Nh3 e4 Ng1 Ne5 fxe5 Ra6 Be2 Ra7 Bf1 Ra8 Ke2 Kd7 a4 h5 d4 b5 g4 f4 g6 h4 d6 h3 g5 b4 d5 b3 a6 b2 a7 h2 a5 Ne7 e6+ Ke8 g7 Rg8 g6 Bd7 Bh3 Bc6 Ra4 Qc8 Nd2 Kd8 Ngf3 b1B Nd4 Bd7 Rg1 Nf5 e7+ Ke8 N2b3 Rh8 g8B Ng7 Nf5 Qd8 Na1 Rb8 a8Q Ne6 g7 Rb6 Rg6 f3+ Ke3 Nc5 Kd4 f2 Bg5 f1R Kc4 e3 Bh4 Be4 Qb1 Rc6 Kb5 Nd3 Be6 Rc5+ Ka6 Rc2 Ka7 Rc5 Bg4 Qc8 Bd1 Nf4 Qa2 Bg2 Qb7 Bc6 Qbb1 Qd8 Bc8 Bf3 Be6 Rg8 Bc8 Bh5 d7+ Kf7 d6+ Bd5 e8B+ Ke6 Rg5 Ng6 Rgg4 Nh8 Rg6 Qe7 d8Q+ Qd7 Bb7 Qb5 d7 Qe2 Qa8 Qf2 d8R Re1 Bec6 Rh1 Rd7 Rb8 Ba6 Rg1 Bf1 Rh1 Bh3 Rf1 Nb3 Be4 Bb5 Bb7 Rd5 Rh1 Na1 Rg1 Bbe2 Re1 Re5+ Kd7 Bb5+ Kc8 Bde2 Rec1 Bd1 Ba6 Bc6 Bb7 Bd7+
3Q2K1/3R1R2/N1Pnr1Q1/1B1k2N1/rqPqp3/4p2N/b1nBRpP1/3BR3 b - - 0 1 illegal: Other
7q/1Q2qqB1/1p1kNb2/1PB2Rpp/N2NP2P/3b1Q1B/r2N2RK/3n1Q2 b - - 0 1 legal: proof: c4 e5 a4 d5 cxd5 e4 a5 e3 fxe3 Bb4 e4 Ba3 e5 Bf8 a6 b6 Qb3 Nd7 Qb4 Rb8 Qb3 Rb7 axb7 a5 Qd1 Nb8 g4 f5 Ra4 f4 Ra1 Nc6 Qb3 Nd4 Qd1 Nf5 gxf5 Qe7 Bh3 Qd7 Bf1 Qd8 Kf2 Ke7 Kg2 c5 b8Q h5 e4 g5 b4 a4 h4 a3 d4 c4 d6+ Kd7 d5 a2 f6 c3 f7 f3+ Kh2 f2 b5 c2 Nd2 Rh7 Qf3 Qf6 e6+ Kd8 d7 Ke7 d8N Bg7 f8B+ Ke8 d6 Qb2 e7 Kd7 Nb7 Nf6 Ne2 Qa3 Rg1 Nd5 Nd4 Nc3 Rg2 Bf6 Bg7 Nd1 e8N Qc5 Ba3 c1Q Nc7 Q1c2 Rb1 a1Q Nce6 Qc7 Rc1 Q2c5 Rc2 Qd8 Rc4 Qe7 Rc3 Qc7 Rc5 Qc6 Rf5 Qc5 Na5 Bb7 Nac4 Bd5 Nb2 Bc4 Na4 Bd3 Qa8 Rh8 Qd5 Ra8 Qb7+ Ke8 d7+ Kf7 Be2 f1Q d8Q Qac3 Qdd5 Ra5 Qc4 Ke8 Qb8+ Kd7 Qa7+ Kd6 Qb7 Qf2 Bf1 Qe3 Rg3 Qf4 Bh3 Ra8 Re5 Qf5 Rg2 Qh7 Rf5 Qb3 Qc1 Qh8 Nf8 Qbf7 Nfe6 Nb2 Qe1 Nd1 Qef1 Qc7 Bb4 Be7 Nc3 Ra2 Ba3 Bf6 Na4 Qce7 Bxc5+
1r4nK/p1p1q1R1/1P1B1b1P/2QPbN1R/2B1BB2/2k1q1Q1/1pb1NN2/6Q1 b - - 0 1 illegal: No proof kernel
R1B4q/2bbN3/7P/PQp2q2/Rn1bQPn1/1p2pR2/4NBK1/1NBkB3 b - - 0 1 legal: proof: c4 b5 e4 d5 cxd5 g5 b4 f5 exf5 h5 g4 a5 bxa5 Ra6 Qc2 Rg6 Qd1 h4 h3 Rh5 gxh5 g4 Na3 g3 Nb1 Rg4 hxg4 Qd7 Qf3 Qd6 Qd1 Qd8 a4 Kd7 d4 Kd6 f4 c5 a6 e5 g5 e4 h6 b4 a5 e3 g6 h3 f6 g2 f7 h2 g7 b3 a7 Qf6 a8Q Bb7 Ne2 g1B Bh3 Qg6 Kf1 Na6 Ra4 Qe4 Bc8 Bf2 Qd3 Qe8 Kg2 Bh4 Rf1 Bc6 Qb5 Bd8 Rf3 Nf6 g8N Bd7 Ne7 Bg7 f8B Bh8 Bg7 Ng4 Bf6 Qg8 Bh4 Nb4 Be1 h1Q+ Kg3 Bc7 Bb7 Qh5 Kg2 Bc6 Bf2 Kd7 d6 Ke6 d5+ Kf6 d7 Qe5 d8R Bd7 Rb8 Bg7 Bc8 Qh8 Qab7 Qg5 Ra8 Qh5 Ng8+ Kf5 Ne7+ Ke4 Q7c6 Qf5 Qcb7 Bc6 d6 Be5 d7 Bd4 Q5b6 Kd3 Qb5+ Kc2 Be1 Bd5 Q7c6 Be6 Qe4+ Kd1 d8B Bd5 Ng6 Bc6 Bdh4 Be8 Ne7 Bd7 Bhf2
q3B3/1pkNRB1R/7K/3P4/bP3pNB/Q1b5/n1Nr1pbP/RR4bQ b - - 0 1 illegal: Other
q1R2BN1/1k3Q2/p3b2K/bbnPR3/5pp1/b4QPB/1n3NPN/2R2RB1 b - - 0 1 legal: proof: c4 b5 f4 d5 a4 e5 axb5 a6 fxe5 d4 Ra4 Qg5 Ra1 Qg3+ hxg3 Ra7 d3 c5 Rh6 g5 Bf4 Rd7 Rh1 h5 Bd2 Rd5 cxd5 c4 Be3 c3 Bc1 Rh6 Nd2 Rc6 Nb1 Rc4 dxc4 Be6 Bd2 Bf5 Bc1 Bc8 Kf2 Kd7 Kf3 Kc7 e4 f5 b4 f4 e6 d3 e7 d2 e8N+ Kb6 e5 c2 c5+ Ka7 b6+ Kb7 b5 h4 c6+ Ka8 b7+ Ka7 c7 h3 e6 h2 Kg4 Bc5 Kh5 Bf8 e7 Nc6 b8B+ Kb7 b6 Bg7 Nf3 Bc3 Be2 Na5 Ba7 Be5 Nc3 Bf6 Ba3 c1B Ne4 Nh6 Rf1 h1Q+ Nh2 Nc4 Nf2 Ng8 Bg4 Bfb2 Bh3 Be6 c8R Bc3 Nf6 Ba5 e8R Nb2 Qf3 d1B Bf8 Ba4 Kg6 Bb5 Re7+ Bed7 Re5 Be6 Rb1 g4 Kg5 Qg1 Kh5 Ne7 Kh6 Nc6 Ng8 Nb4 Ra1 Bd2 Rac1 N4d3 R8c2 Nc5 Rc3 Kc8 b7+ Kc7 Rc4 Bdb4 R4c2 Ba3 b8Q+ Kd7 Qe8+ Kc7 Rc4 Kb7 Qf7+ Nd7 Nd1 Qb6 Rc8 Qd8 Bg1 Qe8 Qf5 Nc5 Nf2 Qd8 Rc6 Qb8 Rc8 Qa8 Qf7+
k2R1b1n/PbnB1R1Q/Q7/3Pp3/2Q2P1Q/1K4Np/nB2RNqp/4n1B1 b - - 0 1 illegal: Other
B3Q1q1/3p4/3N2R1/pP1nP1q1/N2kNQQ1/3qNBp1/2qPb2B/b3K1R1 b - - 0 1 legal: proof: g4 h5 b4 f5 h4 g5 f4 a5 a4 e5 fxe5 b5 axb5 f4 c4 Ra6 b6 Ra8 b7 Nc6 b5 Nce7 c5 Ra6 Na3 Rb6 cxb6 Nf5 gxf5 g4 Nb1 Rh6 Qc2 Rg6 Qd1 Rg5 hxg5 Qe7 Nh3 Qf6 Ng1 Qd8 b8Q Ke7 e4 c5 g6 c4 b7 f3 e6 Kf6 g7 h4 e7 c3 e8N+ Ke7 f6+ Ke6 f7 h3 Bb2 h2 Qf4 c2 b8Q c1Q Ne2 Qc5 Nec3 Qe3+ Be2 Ba3 f8N+ Ke7 Ng6+ Ke6 Ne7 Nf6 Ned5 Bb7 Nd6 Qg8 Rg1 h1Q Na4 Qhh7 Be5 Bb2 Nbc3 Bc6 Rc1 Ba1 Qc8 Qd3 Ne3 Nd5 Rg3 Qh4 Qe8+ Qe7 Rg1 Qc2 Rb1 Qf7 g8B f2+ Kf1 Ba8 Bf3 Bb7 Bh7 Qg8 Rb4 Ba8 Rc4 Bb7 Rc6 Ba8 Qg5 Bb7 Bh2 g3 e5 Ba8 Bhe4 Bb7 Qf4 Ba8 Kg2 f1Q+ Kh1 Qc4 Kg2 Q4d3 Qe2 Bb7 Kf1 Ba8 Qef8 Qeg5 Ke1 Nb4 Ra6 Bd5 Qb8 Bc4 Ba8 Nd5 Qc8 Qd4 Qd1 Be2 Nce4 Qdc4 Rc6 Q4d3 Qe8+ Ne7 Nec4 Kd5 Ne3+ Kd4 Nb7 Qcc4 Rg6 Qcc2 Nbd6 Nd5 Bh1 Bf1 Qdg4 Be2 Bf3
7r/2Pb1B2/6p1/N1Q1p2q/b1R4B/3QPBp1/R2PQ1p1/rRNnKB1k b - - 0 1 illegal: Other
Q7/PbQ1BpP1/1RN1br1B/1Q2Q3/1K3pnP/NN3pp1/3kr2n/5BR1 b - - 0 1 illegal: Other
2Q5/2N3rN/K1BpQp1B/P2pnP1Q/4BbPn/1n2R3/1N1pN1Rk/5b2 b - - 0 1 illegal: Other
K2Q4/pNk3BR/b1p1p3/4PRr1/4R3/rPp1r1r1/P1RB1Q2/3BNqQ1 b - - 1 2 illegal: Other
N3Bnq1/4B3/3kq2r/5BPr/Nb2P1n1/3nQq1R/B1K1bP2/b3NQQR b - - 0 1 illegal: No proof kernel
Bn2K2k/brBRbQB1/N1B2RnN/Pq6/5q1Q/P5R1/b1Q1P1nr/7r b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 b5 Kg3 g5 d4 f5 h4 Kf7 h6 c5 e6+ Kf6 e7 g4 Kf4 b4 e8B c4 d6 b3 d7 g3 d5 b2 h5 g2 d6 c3 a3 c2 h7 Kg7 Ke5 f4 Ke6 f3 Rh3 f2 Nc3 b1R Na4 Qc7 Nc5 Qb7 Na6 Be7 h6+ Kf8 Nf3 g1N Nh4 Bf6 Bg2 f1Q Nf5 Rb3 Rg3 Qa7 Bf3 Bb7 d8B Rb6 Bc7 Nh3 Bec6 Ne7 d7 Ng6 Bb2 c1B Qc2 Bc8 Bbe5 Bd8 Bed6+ Be7 Rb1 Rb7 Rb6 Be3 Bfd5 Rg8 h8Q Qf4 h7 Bf2 Qhb2 Rh8 Nh6 Be3 Qa2 Kg7 Rb5 Qc5 Rb6 Qb5 Bg2 Rf8 h8R Rf5 Rd8 Rh5 Qd5 Raa7 Qdf5 Kh7 Kf7 Bg1 Ke8 Kh8 Qf7 Bf2 Nb4 Ra8 Ra6 Ba7 Bgd5 Qf6 Rb6 Nhf4 Na6 Ng2 Bc5 Qf4 Be4 Bg5 Bf8 Rh1 Bcd5 Be7 Rf6 Rb6 Bc6 Bb7 Rc8 Rh2 d8Q Rh1 Qd4 Rh2 Rd8 Bc8 Qda4 Be6 Rdd3 Ba2 Rd7 Rb7 Bf3 Qd2 Qg4 Qf4 Qh4 Qbe5 Qh5 Rb4 Bb7 Rh4 Bfc6 Rh1 Bg7+ Kh7 Qg5 Rb5 Ng8 Qb2 Qg4 Rbh5 Qb1 Bac5 Qe4 Ra7 Qc2 Qb5 Bf8+ Kh8 Ba8 Rb7 Nh6 R5h2 Qh4 Ba7 Bg7+
k4r2/1n2nq2/1q1Q1R2/P1PB4/qB1rP2N/1R4N1/QB1rQbK1/1bNn2N1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 g5 a4 f5 c4 b5 h4 d5 h6 Kd7 a6 Kc7 e6 g4 h5 d4 c6 f4 c5 b4 e7 g3+ Kg2 d3 e8Q b3 a7 b2 h7 d2 h6 Ne7 Ra3 Qd4 Rb3 Bg4 Nc3 b1Q Bb2 Bg7 Na2 Rf8 h8B Bf5 h7 Qd7 e3 Bd4 Bc4 Bg6 Qe2 d1N Rh6 Bd3 e4 Bf2 Rf6 f3+ Kh1 Bc2 Bd5 g2+ Kh2 Bd3 Qg6 Kc8 c7 Nbc6 a5 Nd8 Nc1 Nb7 Qg8 Rb8 a8Q Qa4 Qa6 Rd8 Ba3 Qb2 Qf7 Bb1 Bb4 Rd7 Qd6 Ra8 Nh3 g1R Bg7 Rb8 h8N Rg2+ Kh1 Rd8 Ng6 Rf8 Nh4 Ra8 Ng1 Ra6 Qf4 Rd6 Bc6 Rd4 Qd6 Rg5 Qfc4 Rgd5 Bh8 Rd2 Qc2 R5d4 Bd5 Bg3 Qcc4 f2 Kg2 f1Q+ Kh1 Qf4 Kg2 Bf2 Qc2 Qba3 Qa2 Qc6 Bg7 Qaa4 Bh8 Nd8 Bg7 Kb7 c8N Ka8 Bh8 Nb7 Bg7 Ng6 Ne7 Qb6 Nef5 Ne7 Ng3 Qf5 Rg6 Qf4 Be5 Qf7 Rf6 R4d3 Bec3 Rd4 Bb2
1n1bRB2/q1N1r3/1qQr2P1/P2r1Q1n/1NP1N1nR/1R5K/b1B4N/3B2qk b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 a4 Kf7 c4 e5 g4 d5 f4 h5 Kf2 b5 Kg3 b4 c6 d4 a6 e4 f6 Kg6 a5 b3 a7 e3 f7 h4+ Kh3 b2 c7 e2 Qa4 e1N Qc6+ Nf6 Ra3 d3 Nd2 b1Q Ngf3 Be7 f8Q Nc2 Be2 Rh7 Nh2 Bf5 c8N Qdb6 Rb3 Ne3 Ba3 Bd8 Bd1 Re7 Ne4 d2 Bd6 Qc7 Nb6 Nh5 Nd5 Qb2 Nb4 Qd7 Nc3 Bb1 Ne4 Ba2 Bc5+ Qf6 Bd6 Qb7 Bc5 Qb6 Bd6 Qfd4 f5+ Kh7 f6 Kg6 f7 Qdc5 Be2 d1R Bf3 Rd5 Bd1 Bc7 Qc8 Bd8 f8R Qd4 Re8 Qg7 Nf3 Qh7 Kh2 h3 Qf5+ Kg7 g6 Kh6 Bc5 Qf7 g7+ Rd6 g8B Qh7 Kg1 h2+ Kf2 Qg7 Bh7 Qf7 Re1 h1Q Nh2 Qg1+ Kf3 Ng7 g5+ Kh5 Re2 Kh4 Rg2 Nh5 Rg4+ Kh3 Bg6 Ng3 Kf4 Kg2 Rh4 Kh1 Kf3 Ng2 Kg4 Nh5 Kh3 Ne3 Bh7 Ng4 Bg6 Nd7 Bh7 Rc8 a8N Nb8 Bg6 Rcc7 Bh7 Ra7 Nc7 Rd5 Bd6 Rd7 Bf8 R7d6 Nca6 Rad7 Nc7 Re7 Ne6 Qa7 Qg6 Red7 Nd2 Ng7 Nc7 Re7 Qe6 Qff2 Bhc2 Qfc5 g6 Nh5 Ne4 Qcb6 Qf5
R1QRn1q1/3Bb1q1/NR1BPqR1/4k3/bNb1PnrN/1P6/1n2BK2/Q6r b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 d4 Kd7 e4 c5 g4 f5 b6 h5 b3 a5 b7 a4 d6 Ke6 d7 f4 g6 h4 g7 h3 g5 h2 g6 a3 Bb5 c4 Bc6 f3 Nc3 a2 Kf2 Na6 b8N Ne7 g8R Nd5 g7 Nac7 Be3 Ne8 Na6 Nf4 Nd5 c3 Ndb4 Qf6 d8Q Bd7 Qc8 c2 Qe1 c1N d5+ Ke7 d6+ Ke6 Ba4 Be7 Bc5 Rh4 Bb5 Rg4 Be2 Ra7 Qd8 Bc6 d7 Ba4 Qc8 Rb7 d8R+ Rd7 Ke3 f2 Nf3 f1B Nh4 Ncd3 Qc3 Nb2 Kf2 Bh3 Rhd1 h1Q Qc1 Bf1 Rd6+ Kf7 Rb6 Rd1 Bf3 Bc4 Be2 Qh3 Qc3 Rh1 Rg1 a1Q Rh8 Nc7 g8B+ Kg7 Be6 Ne8 Bd7 Qd3 Rf8 Qd5 Qd4 Qdf7 e6 Qg8 Qd1 Qff7 Qc1 Kf6 Rg2 Ke5 Qb1 Rg7 Rg6 Qf6 Qa2 Qc1 Qa1 Qc3 Rh6 Rgg1 Rg6 Rg4 Rh6 Nc7 Rde8 Qc1 Qb7 Rgg1 Ra8 Qd1 Rfc8 Ne8 Rd8 Rg7 Qc8 Qg1+ Kf3 Qgg6 Ke3 Q6h7 Kf2 Rg4 Rg6 Qhg7 Bd6+
2b2bkq/6qq/NP2Rrn1/7r/n1N1B2B/3P1Qr1/N1bPQ1R1/B1Q1K2B b - - 0 1 legal: proof: e4 b5 a4 f5 axb5 g5 exf5 d5 h4 d4 hxg5 d3 cxd3 Qd5 Qa4 Qd4 Qd1 Qd8 b4 Kf7 f4 a5 g4 e5 b6 h5 g6+ Kg7 b7 c5 b5 h4 b6 c4 g5 e4 Bb2+ c3 Na3 a4 Qe2 e3 Nc4 h3 Bg2 a3 Rh2 a2 Be4 Nh6 f6+ Kg8 g7 c2 f5 Nf7 Rg2 Na6 b8N Nc5 Na6 Ne5 f7+ Kh7 f6+ Ng6 Rc1 h2 Ba1 h1B Rb1 Qe7 Rb5 Na4 Re5 Rb8 Re6 c1R+ Qd1 Qe8 Ne2 Rc2 Nc3 e2 Qc1 Ra8 Bb2 a1Q Na2 Rg8 Bd4 Rb2 Bf2 Rb5 Bh4 Be7 f8B Qd8 Rf2 Bf3 f7 Rf5 Rh2 Rf6 Rg2 Ba3 Bd6 Rb8 Bh2 Bf8 Be5 Rh8 g8B+ Kg7 Bc6 Rh5 Bh7 Rb7 Bc3 Rd7 Bb7 Rd4 Bb2 Rg4 Be4 Rg3 Be5 Qb1 Ba1 Qb2 Bc6 Ba3 Be4 Qh8 Bg8 Qh7 f8Q+ Kh8 Qf7 Bf8 Qe7 Qc3 Bf7 Bg4 Be8 Kg8 B8c6 Rf4 Ba8 Qcg7 Qb7 Rf6 Qd5 Ne7 g6 Qgh8 g7 Ng6 Qf5 Bf3 Rg1 Bg4 Bh1 Bf3 Rg2 Bc6 Qf3 Bd5 Ne3 Bb3 Nc4 Bc2 Be4 Ne5 Qf4 Kf7 Kf2 Re3 Rg5 Rh3 Qf3 e1Q+ Kg2 Qg3+ Kf1 Qg4 Ke1 Qg2 Qe2 Qg4 Rd6 Qd7 Rg2 Rg3 g8Q+ Ke7 Qg5 Kf7 Re6 Ng6 Qge3 Kg8 Q2f3 Qdg7 Qee2
4nN2/2Q1n2r/PrR3RR/1Qbb3N/1P2q3/N3QB2/4PBrb/K1k2qNn b - - 0 1 illegal: No proof kernel
Q2Br1b1/2KR4/PP1Q2qr/b1Pb1B2/N2nk2Q/1nr1nR1N/N1R4q/3R4 b - - 0 1 illegal: No proof kernel
4R2B/6bP/3KQNbR/2P4n/PNr2nQr/kn1Bb1q1/N1B2B1q/q5R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Kd3 Kd7 Kd4 Kc6 Ke5 b5 c4 g5 f4 d4 a4 d3 h4 e6 h6 g4 h7 d2 a6 g3 a7 b4 h5 b3 h6 b2 f6 g2 f5 Qd3 f7 Ne7 f6 Qc2 Nc3 b1N Nf3 g1B Na2 Be3 Bd3 Nd5 Ne1 Bg7 f8R Nf4 Qg4 d1Q Re8 Qh2 Nc2 Nd2 Bb2 Bb7 Bd4 Nb3 Rb1 Qf3 Rbg1 Qfg3 Ncb4+ Kc7 c6 Nd7+ Ke4 Kd6 f7 e5 f8N Rc8 a8B Nf6+ Kf5 e4 c7 Bd5 Nd7 N6h5 Nf6 Bf7 Bc2 Qe2 Bb7 Qeh2 Ba6 Bg6+ Kg5 Bc1 Bf2 e3 Bb5 Kc5 Ba6 Bf7 Kf5 Bg6+ Ke5 Bd2 Be1 e2 Bf2+ Be3 Bb5 Rg8 h8B e1Q h7 Rf8 Ba6 Rf7 Qe6 Rd7 Qg4 Rd4 Qe6 Qa1 Qg4 Kb6 Bb5 Re4+ Kd6 Ka5 Qe6 Rb8 c5 Rc4 Ke7 Rd8 c8Q Rdd4 Qcd7 Ne2 Qc8 Rh4 Ba6 Nef4 Kd6 Bd3 Qg4 Bg6 Qce6 Qhh3 Bb7 Qhg2 Qf3 Rh2 Nbd5 Rh3 Ne4 Nf6 Qfg4 Rh5 Rh4 Q2h2 Ba8 Rf5 Rh6 Rh5 Bb7 Rh4 Bc6 N6h5 Nef6 Rd4 Bb5 Rb4 Nb6 Re4 Bbd3 Rc4 Nc3 Kb4 Nbd5+ Ka3 Nb4 Qhg2 Nca2 Qh1 Bb1 Qhh2 Bbc2
1N1q4/3nB1P1/N1Rb2KN/P3q1N1/1nrQQR1R/P2Q4/1rB1bq2/2kn2r1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 g4 Kb4 f4 c5 d4 h5 f6 e5 f7 b5 d6 h4 f5 h3 g6 c4 g5 c3 d7 h2 g7 c2 a3+ Kb3 g6 b4 d5 Ba6 d6 Bc8 f6 Na6 Kf5 e4 Nd2+ Kc3 Qe2 b3 Nh3 e3 Ng5 b2 Nb3 b1N Nc5 Be7 f8N Nb4 f7 Rh6 Na6 Nf6 g8N Rh4 g7 Rc4 Kg6 Rb8 Nh6 Rb7 Qg2 e2 Qe4 e1Q Bd3 Qf2 Bf4 c1R Bc2 Kb2 Be3 Nh7 Bc5 Rg1 Ra2+ Kc1 Rb2 Na2 Rb6 Nf6 Rc6 Rb2 Bb4 Nbc3 Bc5 Qc7 d8Q Bg4 Nd7 Nb4 f8R Be2 Ndb8 Nd1 d7 Qe5 Qb6 Bd6 d8Q Nd7 Rf4 Bc7 Be7 Bd6 Qb5 Rg2 Rf1 h1Q Rh4 Rg1 Qbb6 Qhf3 Qbd4 Qf8 Qdd3 Qg8 Qb6 Qd8 Qbd4 Qfh2 Rf5 Qf2 Rff4
NN1QB1r1/b2N1Pk1/2Rnr2P/KB1b2N1/1RR3q1/BPn5/1r1qn3/3Qq3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Kc3 a5 h4 e5 f4 g5 b6 d5 b3 g4 c6 e4 h6 a4 c7 g3 h7 g2 h5 e3 b7 a3 f6 a2 f5 e2 Ba3 e1N Bb5 Ra7 Nd2 Nc6 b8N Na5 Ngf3 g1R Rc1 Ra6 Rh4 Bb7 c8B Re6 Nc4 Ne7 Kb4 a1Q Bcd7 d4 Nb6 d3 c4 d2 c5 Bd5 c6 Nc4 c7 Nd6 c8R Nc2+ Ka5 Nd4 R8c6 Rg2 R1c4 Rhg8 h8Q Ne2 Rhd4 Bh6 Be8+ Kf8 f7 Be3 Rg4 Qc8 Na8 Ba7 Ng5 Qd4 Qe1 d1Q Re4 Qc1 Qd1 Qdd2+ Rb4 Qe1 Rec4 Qcd2 Qd4 Qd7 Qb6 Kg7 f8N Nc3 Qc7 Ng6 Qd8 Qc8 Nfd7 Nf4 Qe2 Rh2 Qd1 Nfe2 f6+ Kh6 f7 Kg7 Rh4 Rf2 Ra6 Qc4 Rc6 Qe4 Rg4 Qf3 Rgf4 Qg4 Rfc4 Nc1 Nab6 Qdd4 Nh7 Rb2 Na8 Qdd2 Ng5 N1e2 h6+
K1k3Q1/R1BP1n2/N1N2Bq1/2rbrQ2/bR3bBQ/1q4qQ/1RP2P2/2n4r b - - 0 1 illegal: No possible last move
NQrrRN1q/3P3b/1bBR4/1K1Pqn2/P1N1NQ1n/B5b1/k2B4/2n3rR b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d6 Kd7 Ke2 Kc6 Kd3 Kc5 f4 Kb4 a4 g5 h4 b5 f6 e5 f7 c5 f5 g4 f6 g3 h6 g2 h7 Nc6 h5 Nge7 h6 Ng6 a6 Nh4 a7 Ne7 Nf3 g1R Nc3 Ba6 d7 Rc8 Qe2 Kb3 Qf2 Bg7 f8B e4+ Ke3 b4 a8N c4 d4 Qe8 f7 Be5 Ba3 Bc7 Bg2 Bd8 Ke2 e3 Ne5 Bb7 Bg7 Be4 Rd1 Bg6 Bc6 Qf8 Nd5 c3 Nf6 c2 Qf5 Ka2 Kd3 c1N+ Kc4 b3 Qg5 b2 Kb5 Ng2 Nc4 Nf5 Ne4 e2 Bf6 Rg8 h8R e1B Qe3 Bda5 Bg5 Bb6 Qg3 Qe7 Bf4 Rgd8 Re8 Bf2 f8N Qh4 Rd3 Qh3 Bd2 b1Q+ Bab4 Qc2 Ba3 Qc3 Qc7 Kb3 Qb8 Ka2 h7 Bh4 Ne6 Be1 h8Q Qh5 Qg7 Qh8 Qge5 Bh7 Qf4 Ngh4 Nf8 Bf2 Rg3 Qa1 d5 Qae5 Rg6 Bg3 Rd6
2r2nb1/N2P2PB/kq1N4/r5Qq/1Pn2qnB/b1RQR1N1/5Q2/KQ2b2R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 f4 Kd7 b4 c5 g4 Kc7 d4 Kb7 Kd2 e5 Kc2 a5 Kb2 h5 b6 h4 g6 e4 d6 e3 d5 h3 g5 a4 d7 c4 g7 h2 f6 e2 f7 e1B d6 Nh6 g8Q Qe8 d8Q Qd7 g6 Qg4 f5 Qh3 f6 Qd7 Ne2 Bg7 f8R Qe7 Ng3 Ng4 Na3 Qe6 Bd3 Ra5 Re8 Nd7 Nb5 Nf8 Bg5 Ka6 Ra3 c3+ Ka1 c2 Qb1 c1Q b7 Qf4 Rc3 a3 f7 a2 Bh4 Qee3 Re7 Qb6 Re3 Be6 d7 Be5 g7 Bb3 Qg5 Bd5 Rg1 h1Q Nd6+ Bc4 Bh7 Be6 Kb2 a1N Rf1 Qd5 Rh1 Nb3 Qd3+ Qdb5 Qb1 Nd2 b8N+ Ka7 Nc6+ Ka6 Qd3 Nc4+ Kb1 Bd4 Na7 Qbe5 Ra3 Bb2 Rc3 Ba3 Ka1 Qef5 Qb1 Qg6 Qd3 Qh5 Qb1 Ng6 f8Q Bd5 Qff5 Nf8 Qgf7 Be6 Q7f6 Bg8 Qfd3 Ne6 Qfe5 Bf7 Rc2 Rc8 Qeb2 Nf8 Rc3 Bg8 Qf2
q2n2k1/P3Q3/b3qP2/1B3r1R/1BR1PQ1N/Qq1N3r/bbR1n3/3BK1nQ b - - 0 1 illegal: No proof kernel
n4b2/Pk4Bn/r1PQ4/2R1nq1q/1R1N4/BbKQr1rN/P3B1Q1/2bR3B b - - 0 1 illegal: No possible last move, all moves rejected
N2Nr2b/1B2BRq1/2n1bnNR/6nQ/1Pb1k1b1/2N2r1Q/4PPR1/Q1bK4 b - - 0 1 illegal: No proof kernel
K2k4/R2rn1rr/1B2r2R/Nb2QqPN/r7/3n2bR/Q1BPnBPN/2B5 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 e5 Kd3 c5 Ke4 h5 f4 a5 b4 h4 b6 c4 b5 h3 f6 h2 f7+ Ke7 f5 c3 b7 c2 d6+ Kd7 Kd5 a4 f6 a3 b6 a2 Nc3 e4 Nce2 e3 Nf4 e2 Nh5 e1R Nf3 Re3 Bd3 Bh6 f8B Re6 f7 Nc6 b8Q Qe7 b7 Kd8 d7 Ra4 Qe5 Rh7 b8N Qf6 Bc5 Ba6 Bf2 Rg7 f8B Qf4 B8c5 Bb5 Qg1 Ra7 Bb6+ Rc7 Bh7 Nd4 Qf1 Qf6 Qc4 Qf5 Qb3 Ne2 Bg6 Ke7 d8R Ra7 Rd6 Rd7 Bh7 Ke8 Qc4 Ne7+ Kc5 Ng8 Nc6 Ne7 Rf1 h1R Na5 Rh3 Rh1 Rh4 Nh2 Rh3 Rb1 a1R Qa2 Rh4 Rc6 Rh3 Rc7 Kd8 Rb3 Rh4 Rh3 Ra4 Bb2 c1N Bg6 Rh7 Ba3 Bg7 Bb2 Qf4 Bc2 Qf5 Ra7+ Ke8 Qed5 Be5 Ba3 Bg3 Qe5 Nf4 Bb2 Nce2 Ba3 Re1 Bc1 Rg6 Bd8 Rg8 Kb6 Nd3 Bc7 Rgg7 Kb7 Rg8 Ka8 Rgg7 Bd6 Kd8 Bdc5 Qg4 Bce3 Qf5 Bb6+ Rc7 Nf6 Rd4 Rh6 Nc3 Nh5 Rb4 Ng4 Ra4 Qf6 Re6 Rh3 Ne2 Qc3 Qg6 Qe5 Qf5 Bbe3 Rb7 Nh2 Rd7 Bb6+
8/R1bR3K/1r1N1B2/Pq1rQnQ1/2n2bRB/rk1N1bQ1/1Q1PB1rP/7r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 f4 Kb4 a4 e5 f6 b5 a6 c5 f5 g5 a7 g4 h6 c4 f7 g3 f6 g2 d6 c3 d7 c2 Kf5 e4 Kg6 e3 h7 e2 Qe1 Kb3 Nf3 g1B Ne5 b4 Na3 Qa5 d8B Bh6 f8R Bf2 f7 Bb7 Nb5 Bg3 Bb2 c1R Rg1 Bf3 Nd3 Nd7 Bbf6 Bhf4 Nd6 Nb6 Re8 Nc4 f8Q Rb1 Qg7 Qb5 Re7 Nh6 Rd7 Rg8 h8Q Nf5 Kh7 Rd1 Qf2 e1R Qg5 Re5 Be2 Rd5 Qd4 Rb1 Qe5 Rg6 Rg2 Rh1 Qg7 Rb8 a8Q Rb6 Ra2 Ra6 Qb7 Rb6 a5 Ra1 Ra4 Ra3 Qc7 Qc5 Qb7 Bf2 Qh5 Bg5 Qc8 Bfe3 Ne8 Ka2 Qd4 b3 Bfe7 b2 Rb7 b1R Qe6 Ne5 Ra7 Kb3 Qgg8 Bh6 Bh4 Rh1 Bdf6 Qb5 Qa1 Rg4 Rd4 Nc4 Rg1 Re5 Rdd7 Rd5 Qb2+ Ka4 Qe4 Bf2 Rg2 Bg3 Qhg6 Bd6 Qee5 Bc7 Nd6 Bf4 Rg1 Rg2 Qg4 Rf2 Rg3 Rg2 Q8g5 Qc5 Qh3 Qc6 Rg4 Qb5 Qc1 Kb3 Qg3 Ka2 Qca1+ Kb3 Qab2+
rb6/1QN1Nn2/Q1r1b1P1/2bB1b1K/1b2PRQN/5PBn/1B1kr1Q1/1R4q1 b - - 0 1 illegal: No proof kernel
2K1Q3/Q1n1RPBP/1bB1nq1R/B7/1n4kB/R2N2rb/Nbrb1Q1P/6b1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 g5 Kg4 a5 d4 e5 f4 c5 b4 e4 h6 c4 f6 e3 Kf5 a4 b6 c3 b7 g4 b5 a3 d6 c2 h7 a2 f7 g3 b6 g2 d5 e2 Nc3 e1B Bb2 c1B Nf3 g1N Qa4+ Nc6 b8Q Bed2 b7 Qb6 Ne5+ Kd8+ d7 Ke7 Bg2 Qb4 Nd3 Qc4 Qba7 Bh6 b8R Nf3 Rb6 Ng5 Re1+ Ne6 d8B+ Kd6 f8Q+ Ne7+ Kf6 Rg8 f5 Bhe3 Kf7 Bg1 Ke8 Rb8 f6 Qa6 f7 Bde3 Qh4 Bcd2 Qf2 Rg3 Qg8 Bd4 Re3 Ra8 Rae1 a1B Na2 Bc5 Bg7 Bb2 Rf3 Rb8 Re4 Rb7 Qh8 Rc7 Bh1 Nf5 Bh4 Nfd4 Re5 Nb5 Ree3 Ng5 Re7 Bh3 Rfe3 Ne6 Rf3 Qa4 Ra6 Qd4 Rf6 Bf5 Ra3 Bb6 Rh6 Qf6 Be4 Nb4 Bg2 Ng5 Kd8 Bh3 Qf8 B6d4 Bh1 Rc2 Qe8 Nc7 Bg2 Nge6+ Kc8 Nc6 Ndb4 Ke5 d6 B4e3 d7 Bb6 Bf3 Kf5 Nd3 Nb4 Bc6+ Kg4 d8B B6d4 Qd7 Ne8 Ba5 Bb6 Qd8 N8c7 Qe8
2R1Nb1B/P6b/1Nk1PQ1b/B2n1r2/5B2/1BP1QbnR/K1b1rq2/1R3Qn1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 b5 Kc3 g5 Kb3 f5 h4 d5 e4 Kd7 a4 f4 e6+ Kc7 e5 g4 a6 d4 h6 g3 h7 d3 e7 g2 e8Q d2 c6 f3 a7 f2 a5 b4 a6 Qe7 h5 Bg7 h6 Nf6 Nf3 g1B Rh3 Ng8 Ka2 Qf8 Nh2 Bb7 Bc4 f1N Bb3 Nf6 Nc3 Nbd7 Ng4 Nd5 Nf6 Bc5 Na4 Ng3 Qf1 d1B Bf4 Be7 e6+ Ne5 Qg6 Bc5 c3 Bc2 Nb6 Bd6 Qf5 Nf3 Rb1 Ng1 Qg6 Rg8 h8B Rc8 h7 Bh6 a8Q Rd8 Qe8 Rg5 a7 Rf5 Qg6 Qf7 Bg7 Rf8 h8B Rb8 Be3 Bf8 Bd4 Kd6 c7 Kc6 Ne8 Qf6 Be3 Qd4 Bf4 Qf2 Bd4 Rd8 Qf6 Rd7 Bc4 b3+ Ka1 b2+ Ka2 Rf7 Bb3 Re5 Bc5 Re2 Bb4 Bh7 Qad8 Ba8 Qd4 Rf5 Ba5 Bb7 Q8f6 Ba8 Rd1 Bb7 Qe3 b1B+ Ka1 Bc2 Ka2 Ba6 Rc1 Bad3 Rd1 Be4 Rb1 Bf3 c8R+
1n3b2/P3RR1P/B1QB1KQ1/2nRB2N/rQPr3n/1b2Nk2/3n4/1qnb1R2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 Kf6 Kd4 b5 a4 g5 h4 d5 f4 g4 h6 e6 a6 g3 c6 b4 h7 b3 a5 b2 a7 g2 c7 Qd7 h5 Qb5 a6 Qd7 h6 Qe7 Qd3 Qd8 Na3 b1N Nc4 Na3 Nh3 g1N Ne3 Bb7 c8R Qb6+ Rc5 Nb1 Ba3 Nd2 Re1 Qb1 c3 Kf7 Ke5 d4 f6 Ne2 f5 Bd5 Nf4 Bb3 Nh5 Ne7 Rd5 Nc1 Bd6 Rg8 h8B Rg4 Qe4 d3 h7 Rf4 Be2 Rh4 Rhf1 Ng6+ Kd4 Rf4 Bg7 Nh4 Ke5 Rg4 Qg2 Rd4 Bh8 Ke8 f7+ Kd7 Qg6 Kc6 Kf6 e5 Bg7 e4 Bh8 Bh6 f8Q Bg7+ Ke6 Bh6 f6 Bg7 f7 Bh6 Ng2 e3 Bhe5 Bg7 Qe7 Bh6 Kf6 Bf8 Bd1 e2 Ne3 Nc4 Bc2 d2 Bf5 d1B Bd3 Nd2 Bc4 Bh6 f8R Bg7+ Ke6 Bh6 R8f7 Bf8 Kf6 Bh6 Rf4 Bf8 Ref1 e1N Re4 Ned3 Bb5+ Kb6 c4 Nc5 Qb7+ Ka5 Qc6 Kb4 Qb6 Kc3 Qa5+ Kd3 Qa3 Nc6 Qb4 Rc8 a8Q Ke2 Qb7 Nb8 a7 Rc6 Qd7 Ra6 Qc6 Ra2 Ba6 Ra4 Bh2 N1d3 Ree7 Nc1 Re1+ Kf2 Bhe5 Kf3 Rf1+
2k5/bbn1nn1q/1nBQb3/N1R2NP1/1r1B4/2KP3Q/R1N1PR2/1r1r2QN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 Kd7 g4 a5 d6 c5 b6 f5 g6 h5 g5 f4 g7 f3 b7 h4 b5 h3 b6 a4 Rh2 a3 Rf2 c4 Bb2 c3 Bg2 h2 Nh3 h1B Ra2 c2 Bd4 Ne7 g8R Qc7 e6+ Kd8 d7 Na6 b8N c1N b7 Rh4 Rg6 Qc2 Nc6+ Kc7 d8N Rb8 Nf7 Bg7 Rf6 Qh7 Na5 Rf4 Qb3 Nd3+ Kd1 Re4 Kc2 Ne5 Nd6 Nf7 Rf5 Kd8 d3 Nc7 Rc5 Rh4 Qb6 Be5 Rb2 a2 Na3 a1R Kc3 Rd1 Ra2 Bf4 Nc2 Be3 Nf5 Bd7 Rf1 f2 Qd6 Rg4 Bc6 Rh4 Qh2 Bf3 Qg1 Bg2 Re1 f1N Nf2 Nd2 Nh1 Nc4 Rf1 Nb6 Rf2 Rg4 Bh8 Rb4 Bd4 Rc8 b8Q Rbb1 Qa7 Rb8 Qh2 Kc8 Qd6 Ng8 e7 Be6 Bb5 Bb7 e8Q+ Nd8 Bc6 Ne7 Qg6 Nf7 Qh5 Ne8 Rf3 Nc4 Bg7 Na3 Rd5 Ba8 Qh4 Nc4 Qg4 Nc7 Qh3 R8b4 Be5 Bb7 Rb5 Bc1 Qg1 Be3 Rf2 Ba7 Rc5 Nb6 Bd4
1B1b4/1Q4nR/PB2Nb1r/1b1rQ1BR/5Pn1/1K1nr1kP/1n2Q1B1/2qNN3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 Kd2 Kd6 Kc2 e5 a4 b5 h6 c5 a6 g5 a7 b4 a5 g4 a6 g3 h7 c4 f6 b3+ Kc3 e4 f7 e3 f3 g2 h3 e2 Qc2 e1N Kb4 b2 Qe2 c3 Ra3 c2 Bg5 c1N Nc3 Qc7 Ra5 Nd7 Nd1 Be7 f8N Ngf6 Ne6 Ncd3+ Kb3 Bd8 f4 Nh5 Rb5 N7e5 Nf3 g1B Bg2 Ng4 Rc5 Bf2 Rg1 Bh4 Ra5 Re8 h8Q Bd7 Qg7 Rc8 a8Q Bb5 Qb7 Qc1 Qf6 Rc5 Qf5 Nc2 Ne1 Ng7 Qfe4 Nce3 Qf5 Rc7 Qe4 Nc4 Qe5+ Kd7 d6 b1R+ Nb2 Ra1 Nd1 Ncb2 d5 Re7 Qf3 Ke8 d7+ Kf7 d6 Kg6 Qfe4+ Kh5 Qe2 Bc6 Rd5 Bb5 Rc5 Re8 Rd5 Bf6 d8B Rc6 d7 Ra5 Bc7 Bd8 Bb8 Re7 Nf8 Rh6 Ne6 Re8 Qc3 Bf6 d8B Re7 Bb6 Re8 Nc7 Re3 Ne6 Bd8 Qd4 Bf6 Qe5 Bd8 Bf6+ Bg5 Be7 Kh4 Bf6 Kg3 Be7 Bh4 Bg5 Bc6 Rd7 Rd5 Rf7 Bb5 Rc7 Nf5 Rh7 Ng7 Be7 Kh2 Bf3+ Ngf2 Rg3 Bg5 Bg2 Bh4 Rg6 Ng4 Rg5 Kg3 Rh5 Bf6 Qe4 Bd4 Bg5 B4f6 Qe5
1N2b1rb/1BQbQ1P1/Qn3n2/2B1KPr1/kN5R/P2Rn3/4R2Q/1r3Bqb b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Kd3 c5 Ke4 h5 f4 b5 d4 e5 g4 c4 a6 b4 f6 b3 d6 Kc6 d7 Kb5 f5 h4 a7 b2 f7 h3 g6 h2 g5 Bb4 f8Q Rh7 d5 Rg7 a3 Nc6 d6 Ba5 Qh5 Qb6 d8Q Nb8 d7 Bd2 Nf3 Bc3 Be3 Ka4 Qc7 Bd4 d8R c3 Rd6 c2 Qfe7 c1R Ra2 Bd7 Bf2 Bc3 Bc5 Bd4 Kd5 e4 Ne5 e3 Nc6 e2 Qh8 e1N Nc3+ Kb3 Ke4 Ng2 Nd5 Ne3 Ndb4 b1B+ Rc2 Be5 Rd3+ Ka4 Re2 Bc2 Qh3 Rb1 Qh4 Rh7 g7 Rh5 g6 Rg5 Qh6 Bb2 Kf4 Nf6 g8Q Be8 Qc4 Nbd7 Qhh7 Rb8 a8B Qa7 Bb7 Nb6 Qh3 Bd7 Qh4 Rg8 Nb8 Bb3 Qce4 Bf7 Qc4 Bfe8 Qh3 Nfd5+ Ke4 Bh8 g7 Nf6+ Ke5 Bf7 Rg1 h1B Qh2 Bh5 Rg4 Bhe8 Rh4 Qa8 Bc8 Qg2 Bb7 Qg1 Qa6#
N3br2/3R1P2/Br3r2/6Pk/n1bQ2nN/bN1Q1P1B/bB3Q1q/3nKQ1R b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 g4 Kf7 b4 d5 c4 h5 c6 e5 c5 a5 c7 a4 c6 e4 b6 d4 b7 e3 b5 d3 b6 e2 f6 Kg6 f7 a3 Kd2 e1R Qe2 h4 Qe5 a2 Bb2 h3 Qd4 h2 Bh3 Rh6 Nf3 Na6 b8Q Nc5 b7 Rf1 Qa7 Na4 b8Q Ba3 Qb5 Bd7 c8N Qc7 Nb6 Rf8 Na8 Be8 Qac5 Qb8 c7 Nf6 c8B Qc7 Ba6 Qg3 Ke3 d2 Ke2 d1B+ Kd2 Bb3 Qbd3+ Ne4+ Ke2 Bc4 Nbd2 Rb1 Rd1 h1B Ke1 Qh2 Nb3 Bg2 Qf1 Nec3 Qcd5 Rc1 Rb1 a1N Qd7 Rc2 Rd2 Nd1 Nh4+ Kh7 Rd3 Bgd5 f3 Rb6 g6+ Kh6 g7 Rd2 g5+ Kh5 g8Q Rc2 Qa7 Rc3 Qdf2 Nc2+ Ke2 Nce3 Ke1 Be6 Rd7 Ng4 Qg7 Rd3 Qc3 Rdd6 Qcd3 Bed5 Qfd4 Rf6 Qdf2 Rbd6 Qad4 Rb6 Nc5 Ba2 Nb3 Bc4 Qh1 Be6 Kd2 Nde3 Rg1 Nd1 Ke1 Bc4 Qhg2 Qc7 Rh1 Qh2 Qgf1
5BN1/5Pbr/Nq1PQQ1b/r2N1r1Q/2R5/2n2brP/3kBnB1/R2n1KQ1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 d4 Kd7 f4 Kd6 a4 g5 f6 b5 h6 c5 a6 e5 a5 g4 f7 g3 h3 g2 a7 b4 a6 b3 f5 b2 f6 e4 h7 e3 Nd2 b1N Be2 Bg4 Ba3 Bg7 f8Q+ Ne7 f7 Nc6 Qe8 Nb4 Rh2 c4 Ne4+ Kc7 d6+ Kb6 d7 Kb5 d5 Nc3 Rh1 Bf3 Nf6 Nf5 Ng8 Qb6 d8Q+ Kc5 Qc1 Kd4 Qed7 Ke4 Qg5 Kd4 Qh5 Ke4 Qe6+ Kd4 Bf1 e2 Kf2 e1R Ne2+ Kd3+ Qce3+ Kc2 Nf4 g1R Be2 Rb1 Qc5 Rg6 Rc1+ Kd2 Kf1 Nd3 Qg1 Rg3 Bf8 Rb5 d6 Nf2 Nd5 Rc5 Qh2 Ra5 Qg1 Rc8 a8N Rcc5 a7 Rcb5 Qg2 Rc5 Nac7 Ne3+ Kg1 Rcb5 a8B Ned1 Kf1 Rc5 Qg1 Rcb5 Ndf6 Rf5 Be4 Nb1 Bd5 c3 Na6 c2 Be4 Nbc3 Nd5 Bg4 Bg2 Bf3 Rcb1 c1B Rb4 Bh6 Rc4 Bb2 Ngf6 Rhg8 h8Q R8g7 Ng8 Rh7 Rc6 Nce4 Rc4 Bbg7 Ndc7 Nec3 Nd5 Bf6 Qg7 Be5 Qgg6 Beg7 Qgf6
1NK2bBn/5N2/nb2k3/R1B1PN1P/bB3BrR/P3Q1q1/r2R2q1/2Q2b1b b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 f5 Kf4 b5 e4 c5 h4 c4 d4 c3 a6 b4 d6 g6 e6+ Kc6 Ke5 g5 d5+ Kc5 h6 b3 h7 f4 a7 c2 h5 f3 a3 g4 e7 f2 e8Q b2 d7 g3 Ke6 g2 d6 Qh4 Ne2 g1B Ng3 Ne7 Bc4 f1B Nd2 b1B Ra2 Bd3 Nf3 Kc6 Ng5 Bf2 Bf4 c1Q Rd2 Nf5 Nf7 Ne7 Nf5 Rg8 h8B Na6 Bd4 Rg4 Bc5 Rb8 a8R Qc2 Qc1 Qg3 Rh4 Bb7 Bb4 Ng6 d8N+ Kb6 Kd7 Nh8 Bd5 Bf1 Nc6 Ba2 Qe7 Bb3 e5 Rc8 Qg5 Ba4 Be6 Kb5 Nb8 Bb6 Ra7 Rc3 Ba2 Bc6+ Kc8 Bh1+ Bc5 Qe4 d7 Rc2 d8B Qeg2 Be7 Rb2 Bb3 Ra2 Bb4 Bh6 Bec5 Bf8 Bc2 Kc4 Ra8 Nc7 Ra5 Na6 Bd3+ Kd5 Bc2+ Ke6 Bb3+ Qd5 Qd8 Qc4 Qd3 Qd5 Qe3 Rg6 N5d6 Ke7 Ng5 Qdg2 Bg8 Rg7 Ngf7 Ke6 Nf5 Rg5 Rd1 Rg4 Rd2
4K3/1r1n4/1NPrbP1r/3R1N1Q/BB3r2/N2RP2Q/qq2Q1Bn/1krQb3 b - - 0 1 illegal: No proof kernel
qrN2R2/4Q3/1P1B2KP/1Br3n1/1qRRN3/1P1b1qbQ/1kBq3q/Qn2R3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 c5 Kf4 g5+ Kf5 a5 d4 c4 h4 c3 e4 a4 b3 a3 b6 c2 h6 g4 d6 Kc6+ d7 g3 h7 g2 d5+ Kc5 d6 Kb4 h5 a2 e6 f6 e7 Na6 e8R Nh6+ Kg6 f5 e5 f4 e6 f3 e7 f2 Bd3 f1Q Nc3 Qf3 Nge2 g1Q+ Ng3 Nf7 Nb5 Nc7 Bf4 c1Q Rh4 Qcc5 Na7 Kc3 Bc2 Ba6 Nc8 Ng5 Ne4+ Kb2 h6 Qa5 Qd3 Rb8 Re1 a1Q Qe3 Bg7 Rf8 Nd5 e8B Nc3 Qd3 Qe7 d8Q Nb1 d7 Qh2 Bd6 Be5 Qf1 Qd5 Qh3 Bd3 Qc7 Qa3 d8R Qaa8 Bb5 Bg3 Qcd7 Qd4 Qde6 Qd7 Qe7 Qdg4 Rd7 Qb4 Rc7 Qgf4 Rc4 Q4e3 Rf6 Rd8 h8Q Qed2 Rd4 Rd7 Rf8 Rc7 Rh5 Nh7 Rc5 Ng5 Rcc4 Rc5 Qhe5 Qdg2 Qa7 Qge2 Qee7 Qed2 Qa1+
1bN5/2P2BQ1/3Nb1nP/PR1N1nK1/2n4r/2n5/QnkRqq1R/4rBBB b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 a4 b5 c4 d4 h4 g6 a6 d3 a7 d2 h6 e6 h7 b4 a5 b3 c6 b2 c7 Bg7 h5 Nc6 c5 Rb8 a8B Ne5 h6 Bd7 c8B Qb6 c6 Nc4 Qe2 d1N Ra2 Ne7 Rh2 Re8 Nd2 b1N h8Q Ndb2 Nh3 e5+ Kg4 g5 f4 e4 c7 e3 Bh1 Be6 Qg8 Ng6 Ne4+ Ke7 Qg2 e2 Be3 e1Q Bg1 Bd4 Nd6 Kf6 Bd7 Re7 Be8 Nc3 Bf7 Rbe8 Kh5 g4 Qc2 g3 Qb1 Nbd1 Rad2 g2 Qa2 Ndb2 Qh7 Qb5 Qg8 Ba7 Qh7 Rd7 Qg7+ Ke7 Kg5 Qf2 Qa3 Qa6 Qa2 Rdd8 f6+ Kd7 f5 Kc6 Rd1 Kc5 Nf4 Bb8 Nd5 Re7 Rd2 Rf8 Nb6 Kb4 Nbc8 Qb5 Bg8 Qe5 f7 Qee2 f6 Rfe8 f8R Rf7 Qb1 Kb3 Qa1 Rd7 f7 Ree7 Rd8 Re8 Rd5 Kc2 f8N Rf7 Re5 Rf4 Nd7 Rh4 Qa2 Re7 Nf6 Re8 Rh3 Re7 Bf7 Re8 Bh2 g1N Rb5 Re7 Nd5 Nf3+ Kf6 Nd4+ Kg5 Nf5 Bg1 Bd7 Rh2 Re5 Nf6 Be6 Rd7 Rd5 Rd8 Rd1 Nd5 Re1 Ne8 Nf4 Nb4+ Kc1 Rd2 Ng6 Nd5 Nbd1 Qa3+ Ndb2 Ned6 Kb1 Qa2+ Kc1 Rd3 Kc2 Rd2+
6Q1/qQ3b2/1Nq5/Nr2rQ2/1Q1PBP1n/RP1Knq2/BR1B4/k1b2Nqn b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 f4 c5 g4 h5 d4 a5 f6 e5 d6 Ke6 d7 Kd5 g6 Kc4 g7 a4 b6 a3 f7 h4 g5 e4 b7 a2 g6 h3 Rh2 e3 Rg2 h2 Rg5 h1N Bh3 Rh5 Qd2 Kb3 Bg4 c4 Rf5 c3 Rc5 c2 Na3 Nh6 g8B Ra5 g7 Re5 Bf3 Nc6 b8Q+ Nb4 Nc4 Rb5 Qb7 Nd5 Nb6 Nf5 Be4 Nh4 Kd3 e2 Nf3 e1Q Nh2 Qg1 Nf1 Ne3 Rb1 a1Q Qb4+ Ka2 Rc3 Bd6 Bd2 c1Q Rb3 Qcc7 f8Q Qc6 Qf5 Qf8 d8N Be6 Rc3 Bf7 Rb3 Qfe8 Rc3 Qd5 Nc6 Be7 Na5 Qec6 Re1 Qb3 Re2 Qbd1 Rh2 Qf3 Ra3+ Kb1 Rg2 Qa2 Re2 Ka1 Rg2 Bh5 Bc4 Bf7 g8Q Bc5 Rc3 Qa4 Ba2 Be7 Ra3 Bd6 Nac4 Qa7 b3 Bf8 Na5 Bc5 Qa4 Bb4 Rh2 Bc3 Qb4 Bb2 Be1 Bc1 Rb2 Re6 Bc3 Ree5 Bd2
1N1n4/1k2b3/5B2/rRrBBQ2/2PPNQK1/3bR1n1/P1q1RQ2/2Rqb1qb b - - 0 1 illegal: No possible last move
3R1Q1r/3n1r2/B4b2/B2K1R1P/1q4q1/2r1QPPN/nQbQrqk1/1N1B3R b - - 0 1 illegal: No proof kernel
5kb1/1B2q1r1/3Bn1nR/1Q1NP1PB/2P5/qr3bqN/1B2N1q1/2RKb1RQ b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 c4 h5 b4 a5 g4 d5 e4 f5 c6 d4 b6 h4 b5 f4 g6 a4 g5 h3 b7 f3 b6 a3 e6 a2 g7 d3 e5 f2+ Kd2 h2 e7 Rh7 c7 Nd7 b8N Nc5 b7 Be6 c8B Ra3 Na6 Rb3 Be2 f1Q b8B Qf2 Nc3 Qg3 Bb7 Bd5 Bb2 Ne6 Rb1 a1Q Rc1 Qa3 Bd6 Kf7 e8R Ne7 Nh3 Ng6 Bh5 Qe7 Rg1 h1Q Ne2 Qhg2 Nc7 Kg8 Qe1 Kf7 Kd1 d2 Ra8 Kg8 Ra6 Kf7 Na8 Ke8 g8Q Rg7 Qh7 Kf7 Nb6 Ke8 Kc2 d1B+ Kd2 Nc5 Qf1 Bg8 Nd5 Ne6 Qh6 Bc2 Qf5 Be4 Kd1 Bf3 Qb1 Qd7 Bc7 Bb4 Bd6 Qe7 Rb6 Kf7 Rc6 Be1 Qh8 Bh7 Qa8 Bg8 Qa5 Qh1 Qb5 Kf8 Qe4 Bg4 Qg2 Bf3 Ra6 Qhh2 Qh1 Qhg2 Bg4 Ngf4 Bc7 Nd8 Rh6 Ng6 Bd6 Ne6 Bh5
B1n2b2/Bb4R1/4q3/2NPPBKb/1PbkRr1N/8/Q3Qq2/N1rrB1Rn b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kf4 c5 b4 f5 d4 h5 e4 h4 g4 a4 e6+ Kd6 g6 a3 b6 c4 b7 h3 e5+ Ke7 g7 h2 g5 c3 g6 a2 Bd2 c2 Bg2 c1R Qe2 Ra7 Kg5 f4 Be1 f3 Nd2 f2 Nb3 f1B Nf3 Qd6 Rg1 h1B Nh4 Na6 b8B Rd7 Ba7 Bb7 Bh3 Nc5 Bf5 Bf3 Rb1 Bg4 Na1 Qc6 Rb3 Bh5 Re3 Nd3 d6+ Kd8 Qd1 Nf2 Qe2 Ne7 g8Q Nh1 g7 Nc8 e7+ Ke8 Qgc4 Qc5 Qcc2 Kf7 g8R Qc4 Qa4 Qe6 Qb3 Rd8 d7 Rh6 Qb1 Rf6 e8B+ Ke7 Beg6 Rf7 Be4 Rf4 Bgf5 Kf7 Qg2 Bc4 Qe2 Bba6 Ba8 Bb7 Nb3 a1Q Qba2 Qb1 Na1 Qe4 Rg6 Qf3 Rg8 Qf2 Rg6 Re8 d8N+ Ke7 Rg8 Kd7 Rg7+ Re7 Nf7 Kc6 Nd6 Kd5 Ne4 Rc7 Nc5 Rd1 Qa3 Bd3 Qa5 Kc4 d5 Kd4 Qaa2 Bc4 Rg8 Rc6 Rg7 Ra6 Bd2 Ra3 Be1 Rc3 Qa3 Rc2 Qa2 Rcc1 Re4+
6k1/1Nbq1Q2/rQ1r1B1n/N1PQ1Rrn/6N1/K1Pbq1r1/R2Bb2P/QB6 b - - 0 1 illegal: No possible last move, all moves rejected
BR2N2r/6r1/KN3Bb1/1P1B1q1Q/BR4qQ/3nPb2/1nq1QN1P/1k1qb3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 b4 Ke4 c6 f5 e6 a5 c7 d5+ Kb3 g5 Ka4 f4 c4 d4 h6 g4 b6 f3 Kb5 a4 b7 f2 e3 a3 c5 d3 e7 a2 e8N g3 h7 g2 c6 d2 Bc4 f1Q Na3 Bf5 c8B Nd7 b8Q Qc7 Qe2 d1B Rb1 a1Q Bb2 Ne5 Bb7 Bg6 Qd8 Qf5 Nh3 g1Q Qh4+ Qgg4 Ba2 Nf6 Nc4 Rg8 h8Q Nh5 Nb6 Nf4 Q8h5 Rg7 Bg8 Rd8 Ba8 Nfd3 Bb3 Qcc8 Ba4 Nc4+ Be5 Bc5 Bf6 Ncb2 Re1 Qc7 Ka6 Bd4 b5 Bc3 Rf1 Be1 Rf2 Nc4 Rb3 Ncb2 Rf3 Qb1 Rf1 Qcd7 c7+ Qdd5 c8B Qc2 Be6 Rb8 Qef2 Bf3 Qe2 Rc8 Nc7 Rh8 Ne8 Ba5 Rd1 Be1 Rc1 Qd1 Rc7 Qc6 Rb7 Qcc2 Bc4 Rc7 Rb4 Rg7 Qef2 Nc1 Bd5+ Kd3 Qf1+ Kd2 Rb8 Ncd3 Nf2 Kc1 Qe2 Kb1 Qh3 Ka1 Qg3 Kb1 Qgh4
1N1Q2R1/1qQ1k2r/1qBNqb2/PN2B3/1rR4q/2PP4/2bRNr2/2nQK1n1 b - - 0 1 illegal: No possible last move, all moves rejected
3Rqnr1/1bnQNqN1/1k6/PnrBP3/B1PbQr1N/B2R4/3B2n1/R6K b - - 0 1 illegal: No possible last move, all moves rejected
Q7/1Nbr1nkB/Q5P1/qR3QP1/1rQ2n1B/1n2n1qq/1PR1bB1N/2R1K3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kf7 f4 e5 g4 c5 d6 a5 d5 h5 f6 e4 b6 e3 d7 a4 d6 e2 b7 c4 f5 h4 Nc3 a3 Rh2 a2 Na4 c3 Qc2 h3 Be3 Ra7 Rc1 a1N Nf3 Nb3 Nc5 Nc6 b8R Qa5 d8B Nb4 d7 Rh4 Bf2 Nh6 Rb5 Bd6 Nb7 Nd5 g6+ Kf8 f7 Ne3 Rg2 Bc7 Nh2 Kg7 Qe4 c2+ Qb4 Qa6 Qc4 Qd6 Bg5 Qg3 d8Q Be6 Qa8 Bd5 Nf3 h2 Bd8 h1Q Nh2 Bf3 Bg5 Rh3 Bh4 Ra4 Qa6 Rb4 Rb1 c1N g5 Na2 Rc1 Nc3 f6+ Kh8 Qd6 Ncd5 Qa6 Nf4 f8Q+ Ng8 Qfd6 Nh6 f7 Kg7 Qd8 Bh5 Rg1 Qhf3 Qda8 Qfg4 Rg2 Qd7 Nf3 Rh1 Nh2 Qdh3 Rf5 Bf3 Rb5 Nh5 Qc3+ Nd4 Kd2 Ra4 Bg1 Nf4 Rf2 Bg4 Bg2 Bh5 Qc4 Bg4 Bd5 Nb3+ Kc3 e1Q+ Rd2 Qe2 Bf2 Rd1 Rdc2 Rd2 Be6 Qe1 Bd5 Be2 Be6 Ng8 f8Q+ Kh8 Qfd6 Kg7 Qdd5 Nh6 Bg8 Nf7 Qf5 Rd4+ Rd2 Rd6 Bh7 Rd7 Ra1 Qb1 Rc2 Qa2 Rf1 Rb4 Rfc1 Nd4 Kd2 Nb3+ Ke1 Qa1 Rd1 Qa5 Rdc1
1r1q4/b3Qb2/1rB1P2P/1Bn2k2/BB3n1P/RRQ3N1/Q1rq3r/N3NnK1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 h4 Ke6 c4 f5 e4 d5 b4 a5 c6 g5 h6 a4 c5 d4 c7 d3 c6 d2 b6 g4 b5 f4 b7 a3 b6 f3 Ne2 g3+ Kg1 g2 Qb3+ Qd5 Rh3 d1Q Ng3 a2 Nd2 Bb4 Ba3 Nd7 b8Q Qb1 b7 Nb6 Qa7 Qe1 b8N Qd1 Na6 Na4 Qb1 Nc5 Nb3 Qc2 Bb5 Ne7 Qb7 Bc3 Nb4 Ra6 Nd3 Rb6 Bb4 Qd8 Ne1 Qcd2 Qb2 Bd7 c8B Ng6 c7 Nf4 Rb1 a1R Qa2 Rf8 Qba7 Rg8 Bb7 Be8 B7c6 Bf7 Rb2 Rc1 c8Q+ Q8d7 Qcc7 Rgb8 Na1+ Q7d5 Q7a5 Rc2 Rb3 Qd8 Q5a3 Qe2 Qc1 Bd4+ Qe3 Qd2 Qc8+ Ke7 e6 Kf6 e7 Kg6 e8B f2+ Kh2 f1N+ Kg1 Kf6 e5+ Kg6 e6 Kf6 Qb7 Kg6 Ne2 Kf6 Qe7+ Kf5 Kf2 g1R Ra3 Bb2 Qc3 Rh1 Rb3 Rh2+ Kg1 Ba3 Ba4 Bc1 Bcb5 Ba3 Bec6 Bb2 Qg3 Bh8 Qc3 Bf6 Re3 Bd4 Ng3+ Kg4 Qb1 R6b7 Ra3 Na6 Qbb2 Ba7 Qa2 Nc5 Qh8 Rb6 Rf3 Be8 Rfb3 Bf7 Nh1 Kf5 Qg7 Nh5 Qc3 Nf4 Ng3+
B3r1Q1/B3bq2/kP5n/3brn1R/6RN/BP1bQ2N/1bPK2Qr/Q3R2q b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 e5 h4 g5 b6 a5 f6 d5 f7+ Kd7 h6 Kc6 f5 Kb7 h7 a4 h5 g4 f6 g3 h6 a3 Qf3 a2 Qg2 e4 Kd2 d4 Rh5 d3 Nh3 Be7 f8R Qe8 f7 Be6 c6+ Ka6 c7 Bd5 b3 Qd7 Ba3 Nc6 c8Q+ Qb7 Qc7 Re8 Qf4 Nd4 Qe3 Nf5 Bd6 Qa7 Bb8 Qc7 Ba7 Qf4 Qg1 g2 Be2 Qc7 Bf3 Qd7 Qf1 g1Q Qfe2 Qh1 Qg2 Nf6 Rg8 Ng4 f8B Qb7 Kc3 d2 Rgg5 d1B Nd2 Be2 Re1 Bd3 Rg6 Bd8 Ba3 Qf7 Rgg5 Re5 Rg7 Rhe8 h8Q Be7 h7 Ngh6 Qg8 a1R h8Q Rb1 Qf4 e3 Rg4 e2 Qe3 Rc1 Be4 Rd1 Nf3 Rd2 Rc1 e1B Nh4 Bg3 Re1 Bf4 Qf6 Bg5 Qfh8 Bgf6 Qhg7 B5c4 Ba8 Bd5 Qge4 Rh2 Qg2 Re6+ Kd2 Bb2 Qgd4 Re5 Kd1 Bc1 Qa1 Bb2 Kd2
N1k4b/R2b1Nqq/KPr1q3/B1N4R/2r1P1B1/1PNB4/1r2n2r/Q3nQQ1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 Kd7 Kd2 c5 Kc3 f5 Kc4 g5 h4 a5 e4 f4 b6 a4 Kb5 a3 e6+ Kd6 h6 g4 b3 g3 h7 a2 e7 Kd7 h5 c4 h6 g2 d6 f3 d5 c3 Bd3 c2 Bd2 c1R Nc3 f2 Na4 f1Q Ba5 Nc6 Rh5 Rc4 Ne2 g1R Nec3 Qf7 Qf1 Qc7 e8B+ Kd8 d7 Ne5 Nc5 Rg6 Qg1 Qe6 Qf1 Rg2 Bg6 Rb2 Bf5 Nf6 Bg4 Ra7 Qg1 Rb7 Ka6 Nf3 Qf1 Ne1 Qg1 Rg8 h8N Rg6 h7 Bg7 Qf1 Ne8 Qg1 Nd6 Qf1 Nf5 Nf7+ Ke7 h8Q Nd4 d8N Bd7 Qg8 Bh8 Qg7 Ne2 d6+ Ke8 Qd4 Rb8 Qdg1 Rc8 Nb5 Rh6 Nc3 Bc6 d7+ Ke7 Rg5 Rh2 Rh5 Ba4 Ng5 Kd6 Ndf7+ Kc6 d8Q Qce7 Nd6 Qh7 Qdf6 Rc7 Ngf7 Rc8 Ncb7 Kd7 Ne8 R8c6 Nc7 Kc8 Nc5 Bb5+ Ka7 Ba4 Na8 Bb5 Rc1 Ba4 Ka6 a1Q Rc2 Qc1 Qfd4 Qch6 Rc1 Q6g7 Ra1 Rd6 Ra3 Bd7 Ra2 Rc6 Qdf6 Ng2 Qa1 Ne1 Qff1 Qhg6 Ra4 Q6h7 Bb4 Qgh6 Kb5 Rh4 Ra7 Rh2 Ka6 Q6g7 Ba5
B1r1Q1Q1/2Nkb2Q/nP1rR2N/2rqP2b/2r1R2n/1qqR1P2/1B3BQ1/1K6 b - - 0 1 illegal: No proof kernel
kq4b1/rb2BB1P/2QN4/qRb1rQB1/2R5/b1n1nNr1/N4PPR/4K2B b - - 0 1 illegal: Other
3k3b/1Kb1qbrP/2rNRnRP/3P4/NQ5q/1QRB3q/1R2q3/n1N1BQ2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 a5 Kf3 e5 Ke4 g5 h4 c5 f4 g4 d4 g3 b4 a4 b6 a3 b5 c4 d6 a2 Kd5 e4 f6 c3 b7 e3 b6 e2 d7+ Kf7 f5 e1Q h6 g2 h5 c2 h7 Ra6 h6 Qde8 Bd3 Q8e7 d8N+ Ke8 f7+ Kd7 f6 Qh4 Rh3 Qe2 Nc3 Ra3 Na4 Rb3 Bd2 c1B Qf1 Bb2 Be1 Na6 b8R Bd6 f8Q Bc7 f7 Rc3 b7 Rc6 Qb4 Nc5 f8R Nb3 Nf7 Qee7 Rb1 a1Q Re8 Qa3 Ne2 g1Q Nc1 Qgg4 Nd6 Na1 Re3 Bc3 Rb2 Qgh3 Rg3 Qe2 Re6 Kd8 Qb3 Qb4 Rgg6 Qe7 Ra8 Qeh4 Ra5 Qa3 Rc5 Nf6+ Kc4 Bd7 Kb5 Be8 d5 Rg8 Rc4 Be5 Rc3 Bf7 Qb4 Rg7 b8Q+ Kd7 Qb6 Kd8 Ka6 Bd4 Kb7 Be5 Nf5 Bd4 Qb3 Qe7 Nd6 Ng4 Ka8 Rg8 Rc4 Bh8 Q6b4 Rg7 Kb7 Nf6 Rc3
r2k1r2/4q2P/P6n/1B5Q/bPNb2N1/QR1bn1KQ/R4rBB/1Qr2R1q b - - 0 1 illegal: No proof kernel
Rq4bb/1R4PN/b1Q1rB1k/Q2N4/1P5K/b2BQPNn/2Q1qnB1/4rn2 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 d4 Kg7 d6 c5 b6 e5 b3 h5 d5 a5 g6 c4 b7 e4 d7 c3 d6 h4 g5 h3 Ne2 c2 Nbc3 a4 Bg2 h2 Bb2 c1N Ng3 a3 Qc2 e3 Nd5+ Nf6 Bd4 Nc6 b8Q e2 Qa7 Qb6 d8Q+ Ne7 d7 a2 Qdc7 Ba6 d8Q Qb8 Q7c6 Rh6 Rb1 a1B Qa5 Bb2 b4 Nb3 Ra1 Nd2 Be5 Ba3 Qe3 Nf1 Ra2 Kh8 g7+ Kh7 g8B+ Kg7 Ra1 Ng6 Bh7 Nf4 g6 Nh3 Rg1 h1B Bd4 Bd6 f3 Be5 Bb2 Ng4 Bd4 Ngf2 f6+ Kf8 f7 Kg7 f8N Ra7 Bg8 Re7 Nh7 Re6 Bf7 Rh4 Be8 Re4 Bd7 Bf6 Bc8 Bc4 Ba6 Ba2 Bd3 Bc4 Nf4 Kh6 Be5 Bh8 Bf6 Re8 g7 Bg8 Rc1 R4e6 Nd5+ Qf4 Qcd2 R8e7 Rc5 Re8 Qc2 R8e7 Rb5 Re8 Qeb6 Qb8 Qe3+ Nf4 Qed2 Nh2 Bf5 R6e7 Qac7 Bb2 Nf1 Nd1 Bgh3 Bg2 Rb7 Re4 Qdc3 R8e6 Qd4 Ne3 Kf2 Nhg4+ Kg3 Nf2 Q7b6 e1Q Kh4 Bc1 Ng3 Bf1 Bg2 N4h3+ Nf4 R4e5 Nd5 Qd1 Qa6 Be2 Re1 Nf1 Qda7 Bb5 Bd3 Qd2 Rd1 Re1 Qac5 Bb2 Ra1 Qe2 Qab6 Bc1 Ra8 Ba6 Qba5 Ba3 Qe3+
1b2R1q1/1BQ2PnQ/1Nn2NR1/RKn1qr1n/4b2B/2P1r1PR/3b2Q1/4kB2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 h5 b4 a5 f4 d5+ Kd3 a4 c6 d4 Kc4 e4 g3 d3 c3 a3 c7 h4 g6+ Kf6 b6 d2 b7 h3 g7 e3 b5 a2 b6 h2 Qf3 d1N Nd2 e2 Kb5 e1B Ne2 Rh5 Nc4 Bd6 Qg2 Nc6 b8R Ne3 b7 Bd2 Nb6 Ra4 Ra8 Re4 b8Q Bb7 c8B Qf8 Rb1 a1N Qc7 Nb3 Ra5 Nc5 Rb4 Ba8 Bb7 Qe7 Rba4 Qe5 Ra6 Rg5 R4a5 Rh5 Qc8 Bb8 Qc7 Nh6 g8Q Nd5 Qgh7 Re3 Nd4 Rg5 Ne6 Rh5 Nf8 Rg5 Rg1 h1Q Ba3 Qh3 Rh1 Qg4 Rh3 Rh5 Bb4 Qg8 Ba3 Nf7 Bc1 Nfd8 Ba3 Nde6 Bb4 Ng7 Nfd7+ Ke7 f6+ Ke6 f7 Rf5 f8R Nf6 Rc8 Nfh5 Nf6 Rg5 Qh6 Kf5 Re8 Qf7 Qh7+ Qg6 Nfd7 Kg4 f5 Qf7 f6 Qg8 f7 Rf5 Qh2 Kf3 Nf6 Rf4 Qh1+ Kf2 Qg2+ Ke1 Nbd5 Nb3 Be7 Nc5 Nb6 Rf5 Ne4 Re2 Bh4 Re3 Nf6 Nd8 Bc8 Be4 Bb7 Nc6 Ra4 Bc2 Rg4 Bb1 Rg6 Be4 Ra5
2Q2B1B/Bb1n1P1K/1r1Q3b/r1nP1N2/B1nbR2P/5k1N/q5qN/1R1n3R b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Ke4 a5 h4 c5 b4 g5 d4 e5 f4 g4 b6 g3 b7 c4 h6 g2 f6 a4 b5 c3 h7 a3 b6 a2 f7 c2 f5 Ra6 f6 Nc6 b8N Na5 b7 Nc4 Nd2 Rb6 Ndf3 Bh6 Rb1 a1B Be3 c1N Nh2 Nd3 Nc6 Ndb2 b8R Bb7 Kf5 e4 Nh3 g1Q Ne7 Qg2 f8B Qc7 f7 Nf6 Qc2 Nd7 Re8 Nd1 Qc1 Qa2 Kg6 Qc6 Bd3 Bb2 Bc2 Bc3 Bg1 e3 Ba4 e2 Be3 e1N Nf5+ Kc7+ Re6 Nd3 Qa3 N3c5 d6+ Kd8 Re4 Bb2 Rg4 Qg2 d5 Bf6 Bf2 Bd4 Qg3 Kc8 Re4 Rg8+ Bg7 Kb8 h8B Ka7 Bg1 Ra8 Bf8 Kb8 Kh7 Ra5 Qe5 Ka7 Qe8 Ka6 Qc8 Ka7 Bc2 Ka6 Bb3 Kb5 Bf2 Kb4 Ba4+ Kc3 Be3 Kd3 Bf2 Nb8 d7 Kd2 d8Q Nbd7 Bg3 Kd3 Bb8 Kd2 Ba7 Kd3 Rg4 Ke2 Qf6 Qd2 Qd6 Qa2 Nf1 Kf3 Rf4+ Ke2 Re4+ Kf3 Nh2+
4b3/1r1PQ2q/1N2rR1Q/3R1q2/1bNBqRPK/1B2n1n1/1r1Q1P2/1k2qB1R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kd7 g4 Kd6 b4 e5 b6 h5 b7 a5 g6 c5 b5 h4 g7 e4 f6 e3 b6 h3 f7 h2 Nf3 a4 Ng1 c4 Be2 a3 Kf1 c3 Kg2 c2 Kg3 a2 Bc4 e2 Nd2 e1Q Ne2 Ra6 Bb2 c1R Nc3 Qg5 Na4 Nh6 g8B Qf5 Kh4 Qee4 Bf1 Nd7 b8Q+ Rc7 b7 Ne5 Qa7 Bd7 b8R Rb7 Nb6 Nc4 Qc1 Rh7 Rd8 Ne3 Rb1 a1Q Ndc4+ Ke7 d6+ Ke6 Qd2 Be8 d7 Bb4 f8Q+ Rf7 Re1 Kf6 Re2 Qe1 Ra8 Ra2 d8R Re7 Rd5 Re6 Qd6 Rb7 Ba1 Rb2 Qa3 Qh7 Ra4 Qef5 Ra6 Nd1 Re4 Ne3 Rg1 h1Q+ Qh2 Qg2 Rf4 Qe4 Rh1 Rc6 Rd7 Re6 d5 Qd3 d6 Qe4 Na5 Ke5 Bf7 Rf6 Bb3 Re6 Qh3 Qd3 Qh2 Qfe4 Nac4+ Kd4 Rg7 Qf5 d7 Qh7 Rg5 Qf5 Qe2 Kc3 Qa5 Qh7 Rd5 Qdb1 Qc5 Qbc2 Qe7 Nhf5+ Kg5 Ng3 Qh6 Qef5+ Kh4 Qce4 Ra8 Bf7 Rf8 Be8 Rf6 Qd2 Ba2 Kc2 Bb3+ Kb1 Qe1+ Qd1 Qc3 Qe1 Qd2 Ra2 Bc3 Rb2 Bd4
1NN1br2/RbPRR3/1r4Q1/qN1r4/B2n1QK1/BPN1b3/2q3kP/nb4B1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kf3 Ke6 c4 Kf5 b3 g5 h6 a5 h7 d5 e6 d4 c6 g4+ Kg3 Ke4 c5 f5 e7 f4+ Kh4 f3 c7 g3 b6 f2 b7 d3 c6 g2 e3 d2 Kg5 a4 Kh4 a3 Kh5 a2 e8R+ Ne7 Kg5 Ra6 Bc4 f1B Ba3 Bd3 Ne2 Kf3 e4 Nd5+ Re7 Rb6 e5 Ne3 e6 Nc2 Qc1 d1B Nec3 g1R+ Kh4 Bd7 c8N Bh6 c7 Nc6 b8N N6d4 Nb5 Rf8 h8B Rg5 Qf4+ Kg2 N1c3 Bf3 Rhd1 Rd5 Be5 Bfe4 Kg4 Be8 Bed6 Qd7 Bdc5 Qc6 Rd2+ Ne2 Bf2 Ned4 Rdd1 Qc5 Bg1 Bg5 Re1 Bh6 Rd7 Bg5 e7 Bh6 Rab1 a1Q Rb2 Qc1 Ra2 Qd2 Re3 Na1 Re1 Bb1 Be2 Bf7 e8Q Qc2 Qe6 Qb4 Qg6 Qa5 Bd3 Be8 Bc4 Rdd6 Bf7 Bd5 Ree7 Bb7 Bd5+ Nf3 Bc6 Rd5 Bd6 Nd4 Ra3 Qb4 Ra7 Qa5 Ba3 Bg5 Nbd6 Bh6 Ba4 Bg5 Ndb5 Bh6 Qff6 Be3 Qf4
1QrQ2r1/2Pqn1bb/2PqkN1Q/K3nB1N/3BB1r1/P3R1NR/5q2/1N3q2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 g5 Kb4 b5 h4 d5 c4 e5 f4 d4 a6 e4 a3 d3 f6 e3 a7 g4 h6 e2 h7 e1R h5 d2 h6 g3 f5 g2 Ne2 g1Q Rh3 Bb7 Bb2 Qe7 Ka5 b4 c6 b3 c7 Qe5+ c5 Nd7 Bd4 b2 Ng3 Rc8 a8B Qf4 Bd3 Bg2 Bae4 Qge3 c6 Ke8 f7+ Ke7 f6+ Ke6 Bg6 Rb8 Bde4 Bc5 f8Q Rg1 f7 Ne5 Qc1 d1Q Qd8 Ne7 f8N+ Kf6 Ra2 Qef2 Nd7+ Ke6 Nf6 Rg8 h8N Rc8 h7 Bf1 Qe3 Bd3 Qd2 Qfg4 Qh6 Qgf5 Ngh5 Rg5 Nf7 Rg4 h8Q Q5f4 Nd6 Q4g3 Be3 Bd4 Nf5 Qgh2 Nfg3 Bc2 Nd2 b1Q Ra1 Qbc1 Nb1 Qdf1 Ra2 Qcd1 Rb2 Qdd3 Rb3 Bb2 Rc3 Qd7 Bd4 Ba1 Re3 Bb2 Bg2 Bf5 Be4 Ba1 Be8 Bh7 B8g6 Nd3 Nh1 Qhd6 N1g3 Ne5 Ba7 Rf8 Ne8 Ra8 Qc8 Nf3 Qb2 Rb8 Qd8 Rc8 Qb8 Bg7 Nef6 Ne5 Bd4 Rg8 Bgf5+
1Q3K2/P2bQR2/Q3B2P/1R1bbB1r/1bN2RrB/1R6/1n1nq1rP/k2N1q2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Kf3 Kf6 Kf4 b5 a4 c5 d4 b4 a6 b3 d6 g6 d7 c4 h6 e6 d5 c3 d6 c2 a5 b2 a7 Na6 Bd3 Qe7 d8Q Bg7 d7 Rb8 a8B Nb4 a6 Rb5 Nc3 b1B a7 Ba2 Qf1 Bd5 Ra3 g5+ Kg4 Ke5 Kh5 Kd4 Kg6 g4 f4 e5 f6 g3 f5 g2 f7 e4 f8R e3 f6 e2 f7 e1B Bg5 c1Q Bf5 Qb1 Rb3 Nf6 Nd1 Qe2 Bh4 Ne4 Qe7 Nd2 d8Q Bd7 Qb8 Nd3 Nf3+ Kc4 Rg1 Rg8 Ne5+ Kd4 Kh7 Nb2 Nc4 Be5 Bb7 Rc5 Bc8 Rg4 Rh1 g1R Rb5 Bg7 Kg8 R1g2 Be6 Kd3 Qff6 Kc2 Bf5+ Kc1 Qa6 Qbd3 Rf1 Kb1 Rf4 Qf1 Rd8 Bd4+ Kf8 Be5 Rb3 Ra5 Rb5 Ka1 Re8 B7c6 Bce6 Qde2 Rb3 Bd7 Rc8 Nb1 Rc5 Bb4 Rb5 Bg7+ Kg8 Nd2 f8R Be5+ Bg5 Ba8 Rf7 Bd5 Kf8 Ra3 Rbf3 Ba5 Rf2 Rh3 R2f3 Rhh4 Rfb3 Rh5 Na3 Bac3 Bh4 Bb4 Nc4+
r1nqBk1Q/5r2/2b2B2/PnN1b3/1b1RbQ2/3P2RP/2NbbQ2/B2BR1K1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 g5 e4 b5 a4 f5 a6 c5 d3 c4 h3 g4 a5 c3 a7 f4 h6 b4 h7 c2 d6 b3 e6 f3 e5 b2 d7+ Ke7 Qe1 Nc6 Na3 b1B Bb2 c1B Nc2 Qc7 d8B+ Ke8 e7 Nd4 Ra4 Bd7 Be2 Nb5 Bd1 Bd2 Ba1 Ba2 Ne2 g3+ Kg1 g2 Qf2 Bc6 Ned4 Bad5 Nb3 Be4 Nc5 Kf7 e8R Ne7 Rh2 Nc8 Bf6 Qd8 Rd4 Rg8 h8Q Rg7 Re6 Be7 Qhh4 Kf8 Qf4 Rf7 Rh1 Bd6 Re7 Bb4 e6 Be5 Rc7 Rb8 a8Q Bd2 Qa7 Ra8 Qb8 Bb4 Kh2 Bd2 Re1 g1B+ Kh1 Bh2 Rcd7 Bg3 R7d5 Bd6 Rg5 Be5 Kg1 Bb4 Qf5 Bgf4 Rg3 Bc1 Qf4 Bcd2 e7+ Ke8 Qg2 f2+ Kh2 f1B Kg1 Be2 Qgf3 Rg7 Qf2 Kf7 e8B+ Kf8 Qb6 Rga7 Qc7 Rb7 Qh7 Rf7 Qh8#
1n1k1qb1/QK2RB1P/1Qrr1N1B/6P1/2R4P/1n3bR1/N2bQ1b1/3BB1bb b - - 0 1 illegal: No proof kernel
2q1b1B1/r3QP2/1P2Qr1R/B1NRr3/2n1Qbrr/P7/1N4Rr/nkBQ1K2 b - - 0 1 illegal: No proof kernel
1rq1RR1K/1b1nrB2/k2N3b/5r1r/NP2B1P1/n1PQ1n1Q/n1Q1RB2/4R3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 d5 Ke3 Kd7 Kf4 Kc7 Ke5 Kb7 b4 h5 g4 a5 f4 a4 g6 a3 c6+ Kb6 g7 a2 f6 h4 c7 d4 f7 h3 f5 h2 f6 e6 Nd2 d3 Ne2 Be7 f8R Ra5 f7 Bb7 c8Q Bg5 Re8 Nf6 f8R Bh6 g8B Nh7 Ne4 d2 Bf7 Ng5 Bg2 Ka7 Qf1 d1N Nd6 Nc3 Be4 Qc7 Kf6 e5 b6+ Ka6 Rg1 h1R Be3 Nf3 Re1 a1N Qh3 Na2 Nc3 Nd7+ Kg6 Rg8+ Kh7 Rc5 Qd8 Qc8 Na4 Ra5 c3 Nc2 Rg3 Na3 Rg2 Rb5 Bd4 Rg5 Rc2 Rf5 Kh8 Rh2 Rce2 Rh1 Bd3 e4 Bf2 e3 Be4 Rh2 Qg3 Rhh5 Qh3 Bd5 b7 Rb6 b8Q Bb7 Rd2 e2 Qbc7 Rbb5 Qc6+ Rb6 Qd5 Rb5 Qb3 Rb6 Qc2 Rbb5 Ra1 e1R Rc1 Re2 Re1 Re3 Rde2 Rb6 Bc6 Re7 Be4 Ba8 Qc7 Rb8 Qc5 Bc6 Qd5 Bb7 Qdd3+
rkBbbR1R/2bNR1QR/BNr5/B2NP3/3n4/KQPr4/P3qn1b/4r3 b - - 0 1 illegal: No proof kernel
3R1Brb/3q4/N1Q1P3/knK2Qnr/r2P2rB/1b4P1/R2Q1R1R/n3NBn1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kd4 h5 e4 f5 b4 c6 b6 a4 g3 f4 g6 h4 b5 f3 g7 h3 d6 a3 b7 a2 b6 h2 Na3 f2 Kc5 Nh6 g8Q Nf7 d4 Ra4 Nf3 Bg7 Nc2 Ng5 Qf8 Rg8 Qd2 Bh8 Nfe1 Qe8 Nb4 Na6+ Kc4 c5 b8B Qd8 b7 Nc7 Qff4 Qe8 e6+ Kd8 e5 Nb5 Qf5 Qd7 Kd5 c4 Kc5 c3 Na6 c2 Ba3 c1N e7+ Ke8 Bb4 Ne2 Bc7 Ng1 b8Q Rg7 Bb6 Rg8 Qc7 Bb7 Ba3 Bd5 Qc6 Be6 Bd8 Bb3 Rc1 a1N Rc2 N5f3 Ra2 Ng5 Be2 f1R Bc4 Rf4 Bf1 Bf6 Bb4 Kf7 e8R Rg4 Re6 Kf8 Be7+ Ke8 Ba3 Bg7 Rf6 Bh8 Bf8 Kd8 e6 N5f3 Qb1 Ng5 Rf2 Nf7 Qf5 Ng5 Qcd5 Kc8 Qc4 Kb7 Bb4 Qf7 d7 Qh7 d8R Qg7 Kd5 Kb6 Bbe7 Qh7 Qd1 Ka5 Kc5 Qf7 Bf6 Qd7 Qcd5 N5h3 Bh4 Ng5 Qc6 Ne2 Rg1 h1R Rgg2 Ng1 Qdd3 Rh3 Rh2 N5f3 Bhe7 Rh5 Bh4 Ng5 Qd2+
rBQ5/n2NPbQn/1k1r2P1/1Pn3B1/1rqB3R/r1Q1nKR1/4N3/3Rb2B b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 d4 a5 g4 h5 e4 f5 b4 c5 d6 h4 g6 c4 e6+ Ke8 e5 h3 e7 Kd7 e8R a4 g5 h2 b6 Kc6 b7 a3 b5+ Kb6 g7 a2 e6 c3 d7 c2 e7 f4 d5 f3 d6 Ra3 Nd2 Nf6 g8Q Bg7 Ne2 Qc7 d8Q Rh6 d7 Nh7 Qe1 Rd6 Nb3 Bc3 Qg7 Nc6 b8B Na7 Bg2 Bd2 Kg3 f2 Kf3 f1N Rg8 Ne3 Nc5 Bc3 Rb1 a1R Qdf8 Ba5 d8B Be6 Qec3 Bf7 Rb4 Rb1 Rd1 h1R Rh4 Rb4 Qe8 Rg1 Bh1 Rg2 Bd2 c1N Qef8 Nb3 Nd7+ Kb7 Qe8 Qc4 Bb6 Rg4 Bd4 Nc5 g6 Re4 Rh8 Ree6 Rh3 Ra6 Rg3 Red6 Ne5 Kb6 Qc8 Nc6 Bc1 Ra8 Bd2 Na7 Bc1 Nf6 Rh4 Nh7 Bd2 Nf5 Bf4 Ne3 Bg5 Rba4 Qc1 Be1 Qc3 Rb4 Nd7+
1BbQ1K1R/q1P2R2/1rQ1B1RB/2k3P1/nb1N1P2/2n4B/1rn4b/4NNnb b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 d5 Kd3 Kd7 Kd4 a5 Ke5 h5 b4 h4 g4 d4 c4 a4 g6 e6 c6+ Kc7 g7 Kb6 c7 h3 f6 h2 f7 d3 Bh3 a3 Nf3 d2 Ne1 Bc5 f8R a2 Rf7 Ne7 Kf6 e5 g8B e4 Kg7 Qd4+ Kf8 e3 f3 Bd6 c5+ Kb7 c6+ Kb6 Qc2 d1N Nd2 e2 Nf1 Nf2 Bh6 Na6 g5 Rb8 f4 Nc5 Qc4 Na4 Qd5 Bc5 Qd8 Qd7 Rd1 a1N Rd6 Nc2 Rg6 Be3 Bg7 Nd5 Bh6 Bb7 c8Q+ Qc7 Qf6 Ndc3 Qcd8 Bc8 Qfd6 Nfe4 Q6d7 Nd2 Qe6 Bg1 Qe4 Ka7 b6+ Ka6 b7 Kb5 Qe6 Nf3 Qed6 Qa5 c7 Qa7 Q6f6 Kc4 b5 Kc5 b6 Rh7 Bg7 Rh4 Bh6 Rg4 Qe6 Rg2 Qef6 Bf2 Qe6 Bg3 Qed7 Ng1 Qe6 Ra8 b8N Rf2 Nc6 Rb8 b7 Rg2 Nf3 e1B Ncd4 Re2 Qee8 Re6 Qed7 Rb6 Qe6 Nb5 Qee8 Bb4 Ne1 Nbc3 Rff6 Nce2 Bge6 Nec3 Rf7 Nge2 Rg1 h1B Qed7 Bh2 Rg4 Ng1 Rh4 Ra8 b8B Qa5 Ba7 Rb8 Rh5 Rb7 Bb8 Qa7 Rh4 Ba5 Rh5 Rb2 Q7e8 R7b6 Qc6+ Kb4 Bg7 Na1 Qce8 Nc2 Rh8 Kc5 Bh6 Bb4 Qc6+
rb4n1/Rq3r1N/R5P1/2BBPp2/1Q2N2K/1R4P1/nQ3rb1/bN1QRk1n b - - 0 1 illegal: No possible last move, all moves rejected
1R4nR/K5R1/3nBqp1/5br1/2N2Pb1/b2kBP1Q/Pn1r1B1r/1N1Q1RQ1 b - - 0 1 legal: proof: g4 d5 c4 f5 cxd5 h5 gxh5 a5 b4 f4 bxa5 f3 exf3 Bf5 f4 Bc8 Ke2 Kd7 Ke3 Kd6 Kd4 b5 h4 c6 a6 g6 h6 b4 h7 e6 a7 b3 h5 b2 h6 Ne7 Bh3 Ng8 Nf3 Nd7 Qg1 Qf6+ Ne5 Nc5 f3 Nb7 d3 Rb8 a8R c5+ Kc4 Bd7 d4 Rd8 Be3 Bc8 Kb5 c4 Kb6 c3 Rh2 c2 Ka7 c1R Rb8 Rc5 Rc2 Rb5 Rc7 Rc5 Rg7 Rb5 Nd3 e5 Be6 e4 Ne5 Be7 Bf2 e3 Nc4+ Kc7 d6+ Kc6 d5+ Kc5 d7 Kd4 d6 Rg5 Qh2 Kd3 Qg1 e2 Be3 e1N Bf2 Rf8 d8B Bd7 Bc7 Rd8 Bcb6 Bc8 d7 Ba3 Bbc5 Nd6 Bb6 Kc2 Bbe3 Nd3 Nbd2 Kc3 Re1 b1B Rf1 Re8 d8Q Nb2 Qd7 Bf5 Nb1+ Kd3 Qa4 Rd8 Qd7 Ne7 Qa4 Rhf8 h8Q Ng8 h7 Bg4 Bd5 Bcf5 Be6 Rfe8 Bc8 Re4 Be6 Re5 Bd4 Re2 Qd1+ Rd2 Bde3 Nh6 Qe8 Ng8 h8R Rc8 Qd7 Rf8 Re7 Rf7 Qc8 Rh7 Reb7 Rh2 Qd7 Rg2 Qh7 Rh2 Rg7 Qe5 Qh6 Qf6 Qh3
1N1B2Nr/2K2Q2/R1nrPn1P/B1bRpk2/2b2N1r/1nbQ3q/P4Q2/B6B b - - 0 1 illegal: No proof kernel
RK1n3B/nQ2b2N/pP1R2n1/Qk6/1N2Br2/3P1PBr/1R1r2Rq/1Nb2b2 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 c5 Kf4 g5+ Ke5 g4 b4 g3 h4 e6 f6 c4 f7 c3 d3 c2 d6 g2 b6 Kc6 b7 a6 d7 Rh6 b5+ Kc5 b6 Nf6 Nf3 g1B Rh2 Ne4 Bf4 c1R Qd2 Rf6 h6 Be7 f8N Rc4 h5 Kb5 h7 Nd6 h8R Rc2 h6 Qc7 Bg3 Rf4 d8R Bd7 Qe1 Rd2 h7 Bc6 Be2 Nc8+ Rd6 Na7 Rg2 Be4 Ra4 Bf5 Ra2 Bh3 Rg8 Bh2 h8B Qc2 Rg1 Bf1 Rg2 Bg1 Nh7 Qc7 Nfg5 Qc2 Ne4 Qc7 Kd4 e5+ Kd5 Nbc6 b8Q Nd8 Nef6 e4 Bf3 e3 Be4 e2 f3 Be3 Qb7 Rc8 Ke5 Ra8 Nd5 Rc8 Qd1 e1N Nb4 Qc2 Rb2 Rc7 Rg1 Ng2 Qe1 Nh4 Rg2 Ng6+ Kd5 Rc4 Re8 Rh4 Rf8 Rh3 Re8 Ndc6 Ra8 Bh6 Ke6 Nd8+ Kd7 Bhg5 Bd5 Rf4 Be4 Qd1 Kc7 Qe2 Kb8 Qf2 Qc1 Qg1 Qc3 Qh2 Rb3 Bgf6 Qa1 Bb2 Qa3 Bc1 Rb2 Kc5 Qa2 Kb5 Qa5+
2rn4/2R1b1QP/1r1R2PN/QN1b2b1/1B2k2n/5pK1/1NB2PnN/r1RqQ3 b - - 0 1 illegal: No possible last move
1RR4q/b2bN1P1/1n2pQ2/1r1n1RPB/B3nPK1/3N2b1/rr1Q3R/N1B3k1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 h5 b4 d5 c4 a5 g4 e6 b6 h4 b7 h3 c6 d4 f6 Kg6 f7 h2 b5 d3 c5 a4 b6 a3 c7 d2 c6 a2 Ne2 Qd6 Na3 Ra6 Nc2 Bd7 c8N Qe5 c7 Bc5 f8Q Nf6 Qe1 d1R Qd2 Nd5 Qf6+ Kh7 Rb1 a1B Rb5 Ra2 Ne7 Re1 Nf4 Re2 g6+ Kh6 c8B Rd8 Qf5 Qh8 g7 Be5 Na1 Bc7 Qf7 Kg5 Nd3+ Kh4 g5 Bg3 Qf6 Re5 Be2 Kh3 Rb2 Re8 Rf1 h1N Rc2 Kh2 Kg4 Rb2 f3 Kg2 Rf2+ Kg1 f4 Ra2 Rh2 Bd4 Rc5 Nf2+ Kf3 Bc6 Bd7 Ne4 Kg4 Rg8 Be8 Nd7 b8R Ba4 b7 N7b6 Ra8 Bd7 b8R Be3 Bh5 Rc8 Rca5 Rcc2 Bd1 Rcb2 Rc5 Ndc3 Rcc8 Reb5 Ba4 Ncd5 Ra7 Na8 Rac7 Ba7 Rc2 Nab6 R2c5 Ndc3 Re5 Ncd5 Rf5
5QB1/R2r2PP/2bP1RBp/5rQn/4q1Q1/Bn1b1N2/knrb3Q/3RN1K1 b - - 0 1 illegal: No proof kernel
1k1Q4/2b1P1qr/7B/2PB3N/R2R1NQN/prr2bKn/b1n1R1PR/n3B3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 f5 b4 d5 e4 Kd7 c4 Kc7 g6 h5 g7 a5 e6 a4 c6 f4 c5 f3 e7 h4 e8R d4 e5 d3 e6 h3 Kg3 d2 Nc3 f2 Nf3 h2 Ne2 Bd6+ Nf4 Qe7 Nh4 Na6 b6+ Kb8 b5 Nf6 g8N Nh7 b7 Bc7 Bc4 Nb4 Bd5 Ng5 Qg4 d1B Nf6 Rh7 Nh5 Qg7 e7 Bb3 Rd8 Nc2 Ra2 Na1 Re2 a3 Rd7 Ka7 b8R Bb7 Rf8 Re8 b6+ Kb8 Rg8 Ba8 b7 Nh3 Bd2 Ba2 Be1 Rd8 Rf8 Rc8 Rf5 Rg8 Rfe5 Rf8 R5e4 Rg8 Ra4 f1N+ Kf3 Ne3 Kg3 Nec2 Rd6 Ba5 c7+ Ka7 Rg1 Rb8 c8Q h1R Qd8 Rh2 Rf1 Rh1 Rf3 Rg1 Rd3 Rf1 Rdd4 Rf3+ Kh2 Rc3 Rde6 Rc8 Rh6 Rc6 b8B+ Kb7 Bg8 Rb6 Be5 Rbb3 Bd5+ Ka7 Bf6 Bc6 Bg5 Kb7 Rhe6 Bb6 Bh6 Bc7 R6e3 Be5 Kg3 Bc7 Qd7 Kb8 Rf3 Ne3 Rf1 Bb7 Rh1 Ba8 Rh2 Bb7 Bf7 Bf3 Bd5 Nec2 Qd8+
1NBR2B1/3P1K2/3B2N1/r2B2q1/RQbp1n2/2Q1PQbr/n1b1kNPn/1r6 b - - 0 1 illegal: No proof kernel
Q2Q2r1/4k1r1/1n2qbR1/K3nR1B/N2Qbp1R/P1PB4/1Pq1n1NB/R1q5 b - - 0 1 illegal: No proof kernel
2k2Nnb/2q1r2n/1r5B/1b2R1QP/Rp1Q1RQB/NKn2b1B/P2Pq3/4Q3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 h4 Kd7 e4 c5 h6 g5 h5 f5 h7 b5 d6 c4 a6 g4 e6+ Kc6 e5 c3 d7 Kc7 e7 b4 e8Q g3 e6 c2 e7 g2 a7 f4 Bb2 c1Q Na3 f3 Bg7 Qc6 Ne2 g1N Rh4 Qe6 Bh3 Qg6 Nf4 Qg4 Bh6 Ne2 Ng6 Bg7 Nf8 Bb7 Qg6 Nc3 e8Q Be5 Qg5 f2+ Kf1 Qe7 d8B+ Kc8 Qe2 Nd7 Re1 Qge6 Rf4 Ndf6 Qeg4 Rb8 a8R Bf3 Ra4 Rb6 Ree4 Bd4 Re5 Qg7 Qb5 Qc7 Qe2 Ne7 Qe4 Rg8 h8Q Rg7 Qe1 Neg8 Qg6 Nh7 Bh4 Re7 Q6g5 Ne2 Ree4 Ba1 Qd4 Nc3 Re5 Be2+ Kg2 f1B+ Kf2 Bf3 Ke3 Bb5 Qb1 Bd7 Kd3 Bb5+ Kc2 Bb2 Qe1 Ba1 Ref5 Qe2 Kb3 Ne4 Qc4 Bh8 Qd4 Nc3 Re5+
5Q1K/5r1B/2n2RQr/q1b1qPB1/1p1PQ3/1P2bRn1/1RB1k3/nB2NN1q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 hxg5 f5 exf5 b4 c4 Bd7 cxd5 Bb5 axb5 Qd6 Rh6 Qd7 Rh1 Qd8 f6 Kf7 Ke2 Kg6 Ke3 Kf5 Kd4 Kf4 g4 h5 b3 a5 b6 h4 d6 e6 g6 a4 d7 h3 g7 c6 f7 a3 g5 h2 b7 a2 g6 Be7 f8R+ Nf6 g8B Rh5 g7 Ra6 Qe1 Rf5 Nf3 Rc5 Bh7 Qa5 d8Q Rf5 Qb6 Ne4 Bd3 Bd8 Rf1 h1Q Rf7 Nd7 b8Q+ Ne5 Qc8 Bh4 Qf8 Be7 Bg6 Ng3 g8B Rf6 B8h7 Ra7 Bgf5 Rh6 Bfg6+ Kg4 Bde4 Rb7 d3 Bd6 Nbd2 Re7 Rf5 Rf7 Rb1 a1N Rb2 Be7 Nc4 Bd6 Bg5 Be7 Ncd2 c5+ Ke3 c4 d4 c3 Bb1 c2 Qc6 Nh5 Ke4 Bc5 Qcd6 Nc6 Qe3 Nb8 Ke5 c1B Qe2 Ng3 Qe3 Rb7 Kf6 e5 Qc6 e4 Qe6 Rb6 Kg7 Rb7+ Kh8 Nc6 Qeg8 Re7 Rf6 Rf7 Qe2 e3 Bgc2 Nf5 Qg6 Ng3 Qed3 e2 Qe3 e1Q Qe5 Qe3 Ne1 Qee4 f4 Qd5 Qee4 Qe5 Ndf3 Be3 Nd2 Ne2 f5+ Kg3 Rg1+ Kf2 Rg4 Ng3 Nf1 Ke2 Rf4 Rh4 Rf3 Rh5 Ba2 Rh6 Bab1
2Nk3b/4rN1q/1N1q1bB1/nbPRP3/rQB3K1/Bp4nP/r1Q4N/1Q2R3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 b5 Kg3 d5 c4 g5 a4 f5 e4 b4 e6 b3 e5 f4+ Kg4 d4 h6 d3 a6 f3 a7 d2 c6 f2 a5 Na6 h7 Qc7 c5 Bd7 h3 Kd8 Na3 Bg7 Qc2 d1Q+ Nf3 Qdd6 Nh2 Ne7 Bc4 Nb4 a6 Re8 h8N Nf5 Rd1 f1R Rd5 Rf2 Bb2 Bf6 Re1 Re7 Qb1 Ng3 Nf7+ Ke8 Qc2 Bh8 Qb1 Qb7 c7 Nc6 c8N Na5 Bc1 Bb5 Qc2 Rb8 a8Q Qa7 Qb1 Ra2 Qb7 Ra8 Qb8 Qb7 a7 Qbd7 Bd3 Qb7 Nc4 Qbc7 Ba3 Qb7 Nh6 Kd8 N4b6 Qbd7 Bc4 Qb7 Kf3 g4+ Kf4 Nf1 Kf5 g3 Kg4 g2 Qc2 g1B Nf7+ Ke8 Qb1 Be3 Qc2 Bg5 Qb1 Rc7 e7 Ng3 Qc2 Qh6 Qb1 Bgf6 Qc2 Qh7 Qb1 Qc6 Qb7 Rb8 a8Q Qd6 Qaa6 Ra8 Qb8 Nc6 Qa5 Rd7 Qd2 Ra4 Qdc2 Rb7 Qa7 Rd7 Qa5 Ra7 Qb4 Na5 Na8 Kd7 Nab6+ Kc7 e8B Rb7 Ng5 Kd8 Bg6 Re7 Nf7+
q3Q1R1/Qnn3N1/1BR4b/1Np5/b1P2rPR/nP1k4/1KB1Rb2/3qr1NQ b - - 0 1 illegal: No possible last move, all moves rejected
6Q1/k1B1RBn1/2B2BPQ/N1n1N3/N2PQ3/3qP1Kb/p2r4/r1bRnqb1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 g4 f5 b4 h5 d4 c5 e6+ Kc7 d6+ Kb6 d7 a5 e7 a4 e8Q c4 g6 h4 g5 h3 g7 c3 g6 c2 Bf4 c1B e3 a3 Bc7+ Ka7 Nf3 h2 Ne5 f4 Qh5 f3 Qh6 Bc5 Bg2 Ne7 g8B Nf5 Rd1 Ng7 Kg3 f2 Nc3 f1Q Bf7 Qe7 d8B Nd7 Na4 Bd6 Bc6 Nc5 Qg8 Qe6 Bf6 Qb3 Qe8 Bh3 b6+ Ka6 b7 Qbd3 b8N+ Ka7 b5 h1N+ Kh2 Nf2 Kg3 Qc2 Qe6 Nfd3 Qf5 Rf8 Qe4 Ne1 Nb2 Re8 Bc4 Qfg2+ Kh4 Ned3 Bb7 Re6 Ng4 Be5 Ba5 Bh2 Ne5 Qf1 Rb1 a2 Na4 Bg1 Kg3 Qf5 Bbd5 Qf1 Nbc6+ Kb7 b6 Ne1 Rb5 Ka6 b7 Qcd3 b8Q Rd6 Qbh8 Rb8 Qg8 Rd7 Bad8 Rdb7 Na5 Ka7 Bc6 Rb6 Rb1 Rb2 Bf7 Rd2 Rb7+ Ka6 Rc7 Rb1 Rd7 Ra1 Bc7 Ka7 Re7
8/1k2nQ1Q/NqNB2P1/1nn1Rqq1/P2RB3/1b1pb2R/1Qr2PBr/4R1K1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 g4 d5 a4 Kd7 c4 Kc7 c6 h5 c5 b5 f6 e5 f7 d4 a6 d3 a7 h4 Nf3 h3 Qb3 b4 Ba3 e4 Bg2 h2 Kf1 e3 Nbd2 Nh6 Ne5 Bg7 f8Q Ba6 Ne4 Ng8 Qff7+ Kc8 c7 Kb7 c8R+ Nd7 Rc6 Rh3 Re6 Rc8 a8R Bh6 c6+ Kc7 Rc1 Bc4 Nc5 Qe7 Qb1 b3 Na6+ Kb6 Ra7 b2 c7+ Qd6 Be4 Ne7 Qa1 b1N Qb2+ Bb3 Rb7+ Ka5 Rb4 Nc3 Rd4 Kb6 Rb1 Qc6 Bd6 e2+ Kg2 e1Q Rc1 Qe2 Rce1 Qd2 Kf1 Rd8 c8B Nb5 Bg2 Rg8 Bb7 Rc8 Ba8 Qc7 Bae4 Qd8 Qh7 Rc2 Nc6 Kb7 Re5 Qb6 g6 Rc1 g5 Rc2 g7 Nc5 g8Q Qf4 g6 Qf5 Qe8 Be3 Qef7 Qg5 Rg1 h1Q Bgf3 Qh2 Bg2 Qhf4 Rh1 Qff5 Kg1 Rh4 Rh3 Rh6 Rg3 Rh2 Rh3
K1b1B3/1Q2N1q1/1N1n1P1r/Q1rNb2p/1Q3BR1/1n1kqR2/P2P2b1/3Bq1N1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kd7 Ke3 Kd6 Ke4 Kc5 g4 b5 f4 h5 a6 e5 g6 b4 g7 c6 g5 b3 f6 b2 a7 Bb7 d6 Qd7 f5 Qf7 d7 Qe8 d8Q Qd7 f7 Qe6 g6 Nh6 g8B Bc8 g7 Na6 f6 Bd6 f8Q Nf5 Qf3 Rh6 Nc3 b1B+ Bd3 Rb8 a8N Rb5 Bc2 Kc4 Bb2 c5 Rh4 Bb8 Qa5 Nd6+ Ke3+ e4 Bd1 Bd3 Nd5 Bf1 Rg4 Bg2 Bf7 Bc7 Kf4 e3 g8N e2 Be5 e1Q Be8 Qe7 Rb1 Qg7 Nge7 Bb8 Rb3 Qe2 Bd4 Qf2 Ke5 Qe3+ Re4 Bc7 Bc3+ Kd3 Nab6 c4 Bb4+ c3 Ra3 Nb7+ Bd6 Nac5 Rb3 Nd7+ Ke6 Rc5 Bf4 Be5 Reb4 Nd6 Rc4 Ba6 Ra4 Nb8 Rc4 Nc6 Kd7 Bb7 Kc7 Nd4+ Kb8 Bc8 Ra3 Nb3 Ka8 c2 Nc7 c1Q Qf7 Bf1 Bg5 Qa1 Rg4 Bg2 Be2+ Kc2 Bf4 Qec3 Qc4 Nd4 Qcb4 Qe1 Qb7 Qf3 Rd3 Nb3 Ncd5 Qff2 Rdg3 Qe3 Bd1+ Kd3 Rf3
rbR1Q2q/3QQ2b/3n1P1R/rB1pqN1K/2nB3N/P2b1N2/2k4P/N1nR4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 c4 Ke4 f4 g5 h6 e5 a6 b5 c6 d6 a7 b4 c7 b3 c5 b2 h7 Bh6 c6 Nd7 f6 Ba6 c8R Nb6 f5 Ne7 c7 Bd3 f7 Nc4 Kh5 g4 f8Q g3 Be3 g2 Bd4 Bf4 Nf3 g1N f6 Ne2 a3 Bg3 Rg1 Nf5 Qe7 Nc1 Qd2 Rg8 h8N Rg4 Ng6 Qh8+ Qh6 d5 Ngh4 Bf4 Qhh7 Rg7 Rg6 Nfd6 Bc3 Ke3 Rh6 e4 Nbd2 b1B Nb3 Rf7 Qf5 Rg7 Qfd7 Rg4 Bg2 Ke2 Be5 Kd1 Bd4 e3 Bf1 Bbc2 Rb1 e2 Ra1 e1Q Rb1 Rb8 a8Q Bh7 Qaa4 Ra8 Qde8 Bcf5 Qad7 Kc2 Ra1 Qe5 Be2 Ne3 Bb5 Nec4 Rb1 Na2 Rd1 Nc1 Rb8 Rg8 c8N Ra5 Ra8 Nb7 Nd6 Bd3+ Ndf5 Nbd6 Rc8 Rf8 Q8f7 Rd8 Qfe8 Bg3 Rc6 Rda8 Rc8 Bf2 Ba1 Ba7 Bd4 Bb8 Na1+
1qNrQ3/1B4Rk/q3Pbb1/3P3N/1NB2nKB/rbQ4P/1R2pBQ1/1nn5 b - - 0 1 illegal: No proof kernel
b5NN/b3qR1Q/2rqPP2/k4n1q/3Q2bB/2p2P1n/1rB1BR2/2BQKR2 b - - 0 1 illegal: No proof kernel
1RQ1r1R1/3br3/qR1P1P1n/r1Rn1N1Q/Bp1bP1B1/2B2N2/2nKQ2q/7k b - - 0 1 illegal: No proof kernel
R2bBqN1/6q1/bP3B1N/KRnQrR2/2pnQ1Br/2B5/1bPN3P/1q4k1 b - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Ke7 Kc3 a5 f4 g5 b4 c5 e6 Kf6 h6 d5 b6 a4 e7 c4 e8B g4 b5 g3 b7 a3 h7 a2 b6 g2 Nf3 g1Q Nh4 Qe7 Bd2 Ra4 Bh3 Rb4 Bg4 Nc6 b8N Nd4 Nc6 Qf7 Ne7 Rb5 Qf3 Ra5 Kb4 Ba6 Bc3 Bh6 Qd3 Qf8 Qe4 Bg5 Nd2 Qg3 Rab1 a1B Rhf1 Bb2 Rf3 Nh6 Rf2 Nf7 Rff1 Nd6 Ng8+ Kg7 Rf2 Bd8 Rf3 Rc5 Ka4 Nb7 Rff1 Bc1 Rb5 Bb2 Kb4 Rc7+ Ka4 Nc5+ Ka5 Re7 Ra1 Re5 Ra4 Nde6 Ra3 d4 Qd5 d3 Ra2 Qf7 f6+ Kf8 f5 Nd4 Ra3 Qf4 Qe4 Qg7 f7 Qf1 Nh6 Ke7 f8R Kd6 f6 Qf2 f7 Qf4 Ng8 Qf1 Nb3 d2 Nf5+ Ke6 Ra4 d1Q Nd2 Qb1 Nfh6+ Qf5 Ne7 Kf6 Neg8+ Kg5 Ra2 Kh4 Ra1 Qg1 Rf1 Qc8 Rf5 Qb1 Bd7 Bc7 Bc6 Qe6 Ra8 Qe7 Be8 Qe1 Rf1 Bd8 Nf5+ Kg5 Qd5 Qb1 f8Q Qef6 Qff7 Qf8 Qe4 Q6g7 Nd6 Kh4 Rf5 Qg5 Qfd5 Qgg7 Bgh5+ Kh3 Nf7 Nf3 Bg4+ Kg2 Rh5 Kg1 Rf5 Nd4 Nf6 Rg8 h8B Qh7 Bg7 Rh8 Ng8 Qh6 Bf6 Qhg7 Rg5 Rh6 Rf5 Rh4 Nfh6
RB3Qbq/1Nn2r2/rPBq2r1/1bRB3k/P7/2Q1R1BN/P3p1N1/2K1n1b1 b - - 0 1 illegal: No proof kernel
4NN1b/1q1R2B1/P4K2/r4BBb/6R1/3q1nRr/bpkBrQPP/3nQ2Q b - - 0 1 illegal: No proof kernel
3r1Q1Q/2Q1r2R/P3n1BP/K1Rb4/1N4N1/bp1qBNq1/B1P1k1nB/1n4b1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 a4 Ke4 h4 b5 f4 g5 h6 d5 a6 e5 h7 d4 a5 g4 f6 g3 f7 d3 f5 g2 f6 d2 h5 Ke3 a7 e4 a6 Kf2 Bc4 e3 Na3 e2 Nf3 e1B Ba2 g1N Nc4 Qd3 Ka5 b4 c6 b3 c7 Nd7 Ne3 Bb7 c8N Nh6 Nb6 Ng4 Nbd5 Nc5 Nb4 Rd8 a8B Bd5 Rh4 Bd6 f8B Ne6 f7 Ne2 Bc6 Qg6 Be8 Nc3 Bh6 Qg8 f8Q Nb1 Bg6 Bh2 Bf4 Bg1 Rh1 Re8 Rh3 Re7 Bh2 Qg7 Rh4 Rg8 h8Q Qc3 Nc4 Ne3 Nce5 Ng2 Rc4 Qe3 Rc5 Qg5 h6 Qg3 Ng4+ Kf1 Qf5 Rd8 Qff8 Ra7 Rc7 Rb7 Rh7 Rg7 Ba3 Re7 Qc1 d1Q Qcf4 Qe2 Qc7 Qd3 Bc1 Ke2 Be3 Bc3 Ka4 Bb2 Ka5 Nc3 Rd1 Nb1 Rf1 Ba3 Rd1 Qc4 Rd3 Qd4 Rc3 Qd3 Rc5
k1BR2n1/B2Q1Q2/PQp1R2b/1qN1q2P/n1r1B3/1P5N/1bQ1r1br/5RK1 b - - 0 1 illegal: No proof kernel
1n4q1/2rrBnRB/pN1r1P1q/1Q6/Q1B5/n4K1P/N1b3PQ/b1B1RkN1 b - - 0 1 illegal: No proof kernel
R6K/Nb3R1p/1q1B2NP/b2N1Bn1/B1R3Qb/1P1nrr1P/2QkN3/2q4n b - - 0 1 legal: proof: c4 b5 f4 e5 fxe5 d5 cxd5 b4 h4 b3 axb3 Qg5 b4 Qf5 b5 Qh3 gxh3 Ba6 Nf3 Bb7 Ng1 Bc8 Kf2 Kd7 Kf3 a5 Kg4 c5 Kf5 g5 d4 a4 e4 f6 b6 c4 b7 a3 e6+ Kd6 h5 a2 e5+ Ke7 d6+ Kd8 h6 c3 d7 Kc7 d8N Kb6 d5 Kc5 d6 Kb4 d7 g4 e7 g3 e8R c2 e6 g2 e7 Na6 b8Q+ Bb7 Bf4 c1Q Ne2 g1Q Nf7 Nc5 d8N Nd3 Nbc3 Ra3 Ne5 Qb6 Ng6 Rb3 Rb1 a1B Nc6+ Kc4 Ke6 f5 Kf7 Nf6 Na7 Ne4 Bd6 f4 Nd5 f3 Rh2 Rg8 Rf2 Ng5+ Kf6 Rh8 Rd8 Ra3 e8B Be7+ Kg7 Rf8 Ba4 Rf4 Kh8 Rc3 Rg2 f2 Rg4 Rb3 Bg2 f1N Be4 Ng3 Bf5 Nh1 Rf8 Bd8 Rf7 Be7 Be5 Bb4 Bd6 Ba5 Qg1 Nb4 Rh4 Re3 Qg4 Nd3 Nde7 Be4 Nd5 Rff3 Qb7 Ne5 b3+ Kd3 Qc6 B1c3 Ra1 Be1 Ra3 Kd2 Qc8 Bg3 Qc2+ Ke1 Ra2 Nd3 Qb1 Bf2 Rc2 Kd1 Rc8 Kd2 Ra8 Be1 Ndf4 Bb7 Nd5 Qcc7 Qg3 Qc2 Rc4 Qc1 Qg4 Bh4 Qc2+
B2Q1r2/1q4P1/1Q6/q5bQ/1Rr2R1n/1BNNk1Bp/2R1P1rP/nn3KRb b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 c4 Ke7 g4 Ke6 c6 a5 g6 f5 g7 h5 b6 d5 c7 f4 b7 d4 c5 Kd5 c6 Ke4 e6 d3 e7 f3 e8B f2+ Kd2 a4 g5 h4 g6 a3 Nh3 a2 Bf7 Nd7 b8R Ndf6 Bb3 Bb7 c8R Be7 c7 Ra4 Nf4 h3 Rg1 Nh6 g8Q Nd5 g7 Bg5 Qh7+ Nf5 Qh5 Rc4 Nc3+ Kd4 Bb2 Rf8 Bg2 f1R Qb1 Rf2 Ke1 Ke3 Be4 Bc6 Rb4 Rg2 Kf1 d2 Nd3 Nh4+ Bf3 Qd7 Ba3 Ba8 Qb2 Qe7 Rc1 a1N Rc2 Bb7 Rb8 Ba8 c8Q Qb7 Qd8 d1Q+ Ne1 Rc8 Rf4 Qd2 Bd6 Rc7 Nd3 Rc4 Nb5 Qa5 Nc3 Qba7 Rb4 Qb7 Na4 Nc3 Bc6 Nb1 Nc3 Qd7 Bf3 Bd5 Be4 Qb7 Bf3 Bg8 Bc6 Bd5 Be5 Qc8 Ba8 Qb7 Rf7 Nf5 Ra4 Be6 Bg3 Nh4 Ba2 Bd5 Rf4 Be4 Qb4 Bf3 Bb3 Rf2+ Ke1 Bh1 Qbb6+ Rc5 Rad4 Rg2 Kf1 Rc7 Rb4+ Rc5 Qa6 Rc4 Qab6+
QnR1R1B1/6P1/3KbqR1/b1QB2N1/3Pr1Nk/6rp/2Q1bq1P/nnB1Q3 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 exd5 c3 bxc3 Bh6 c4 Bg7 c5 Bf8 Kf2 h5 Ke3 f5 Kf4 Kf7 Ke5 Kg6 g4 a5 d4 e6 c4 h4 d6 f4 d7 h3 c6 f3 c7 a4 c5 f2 c6 a3 b6 a2 b7 Qe7 d8R Qa3 Bc4 f1B Nd2 Be2 Nf1 Qc3 Ne3 Qc2 Qe1 Qb3 Bd5 Rh4 Re8 Qb6 Nf3 Ne7 Rg1 Ra3 Kd6 e5 Rg2 Bf5 c8Q e4 Rb1 a1N Rb3 Rh6 Rc3 Be6 Rg3 Rh4 Rg1 Kf7 g6+ Kf6 g7 Kg6 g5 Kh5 Ng4 e3 g8B Bh6 Be4 Nd5 g6 Bg5 g7 Bd8 Rc2 Nc3 Bd5 Nb1 Ng5 Qa6 Rg2 Ba5 Qc7 Rc3 Qb6 Rb3 c7 Rd3 c8Q Rc3 Nh6 Re4 Ng4 Rd3 Rg3 Kh4 Rc6 Ra3 Qc5 Qb6 Qd7 Qd8 Rc8 Qf6 Qdc6 Bb5 Qcc3 e2 Qc2 Ba6 Rg2+ Rg3 Q6c5 Bb5 Qeb4 e1Q Rg1 Nd7 b8Q Be2 Qa8 Qef2 Qe1 Nb8 Rf1 Qg2 Rf3 Qf2 Rf5 Qg6 Rf6 Qgf5 Rg6 Qe5+ Ke7 Qef6+ Kd6
2Nb2B1/2q2NPr/4K1P1/4Q1Q1/k1prnNPB/B4bn1/1Rb1qr2/BR2R3 b - - 0 1 illegal: No proof kernel
RnbB4/2BBQQP1/2p2rPk/8/NQNQ1b2/r2r3R/P1qq1q2/K1n4R b - - 0 1 illegal: No possible last move, all moves rejected
2B3N1/2Q2Rp1/Q3qRb1/3qb1B1/1rN2n1k/B1P1PBb1/3N3P/2nrnRK1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 b4 d5 c6 f5 e3 a5 h6 f4 h7 d4 b6 d3 b5 f3 b7 d2 c7 a4 b6 a3 e6 Kf6 e7 Kg5 e8R a2 Ba3 Qd5 Be2 Ne7 Qf1 d1Q Nd2 Bf5 c8B Bg6 Nc4 Na6 b8Q Kh4 b7 Nb4 Qc7 Qe6 b8B Ned5 Re7 Nf4 Rf7 Ra4 Rb1 Rg8 h8N a1B Rc1 Bd4 c3 Na2 Rb1 Bfc5 Rb6 Be5 Rc6 Qb3 Qa1 Qd5 Rcf6 Rb4 Kf1 f2 Bf3 Nc1 Qa2 Bh7 Qe2 Bcd6 Ng6+ Kg5 Ne7 Kh4 Qd3 Rd8 Ng8 Bg6 Qe2 Nh5 Qd3 Bg3 Kg2 Bde5 Kf1 Qe6 Qdd6 Rd7 Qa6 Rd1+ Kg2 Qd7 Qcb6 Bd4 Ba8 f1N Bf4 Be1 Nb2 Qa2 Bh6 Qae6 Qc7 Bg3 Nc4 Nd2 Be4 Qdd5 Nf3+ Kg4 Re1 Bde5 Kg1 Nf4 Rf1 Kh5 Nd4 Kh4 Nb3 Ncd3 Bf3 Ne1 Nc5 Nb3 Ne4 Nc1 Ned2 Rb3 Bc5 Rb5 Ba3 Rb4 Bg5+
2R3rN/rk2q1p1/1PB1Q1P1/1BR1RNr1/3B1Q1R/b1b1P3/6bq/2nK2Qn b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 f4 h4 fxe5 h3 Qc2 Bd7 Qh7 Be6 Nxh3 Bd7 Ng1 Bc8 b4 Kd7 h4 a5 d4 c5 g4 Kc7 e6 f5 e3 a4 b6+ Kb7 h5 a3 d6 f4 d5 c4 e7 f3 e8B a2 d7 f2+ Kd1 c3 g5 Nf6 h6 Qc7 d8R Rg8 d6 Ne4 b5 Nd7 g6 Ra7 Bb2 Nec5 Ne2 Ra6 Rh5 Ra4 Nd4 Ka8 b7+ Kb8 Na3 Be7 Rc1 a1R Re5 Bg5 Nf5 Nb3 Nc4 Ndc5 d7 Ra7 Ncd6 Ne4 Nf7 Bf6 Nh8 Ng3 Bg2 R1a2 Bc6 R2a5 Rc2 Nc1 Ba1 Rf8 Qg8 Nh1 Qe6 Rg8 h7 Qd6+ Rd5 Qc5 Re5 Qe7 Bb2 Kc7 Ba1 Kb6 b8Q+ Bb7 Qbd6 Ba8 Rc8 Bb7 Qb4 Ba8 Qh4 f1Q+ Qe1 Qh3 Qg1 Qh2 d8Q+ Rc7 Qd3 Rca7 Qe4 Bb7 Qf4 Ba8 Bcd7+ Kb7 b6 Rb5 Rec5 Rba5 Bb5 Bd4 Rd2 Bf6 Rdd5 c2+ Ke1 Bb2 Re5 Ba3 Bc3 Bb2 Bd4 Bc3+ Kf1 Nb3 Bed7 c1B Be8 Ba3 Bed7 Qh3+ Ke2 Qh2+ Kd1 Nc1 Nf7 Ra4 h8R Rb4 Rh3 Rb2 Nh8 Rg2 Rh4 Rg5 R8c7+ Kb8 Be8 Bg2 Rc8+ Kb7 Bec6+
Q1qb3Q/nb1N1PN1/3RNk2/B1R1pP2/1PKB4/Q3Br2/r2r1b2/1B1q3n b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 g5 b4 c5 h4 a5 f4 g4 f6 a4 d6 g3 h6 a3 b6 g2 h7 e6 f5 a2 h5 Nd7 h6 Ne7 b7 Rg8 b8Q Qb6 h8B Bg7 h7 Bb7 Ne2 g1R Na3 Ra6 Qb3 Rg5 Rh6 Rf8 Kc4 Ra7 d4 Rd8 d5 Rg3 Nd4 Rf3 Be3 Nc8 Bd3 Qc7 Rc1 a1B Qa8 Bf8 Qa2 Be7 Bb1 Bc3 Bg7 Be1 h8Q Bf2 Rc2 Ra5 Qb3 Na7 Qa2 Nf8 d7 Ng6 d6 Nf4 Rg6 Ne2 Qb3 Rg8 d8B Qc8 d7 Ng3 Bc7 Nh1 d8N+ Ke8 f7+ Kd7 N8c6 Bd8 Nb8+ Ke7 Nab5 Ra2 Nd6 Re8 Nd7 e5 Ne6 Rg8 Bgh6 Rg7 Rf6 Rg2 Bd4 Rh2 Bhe3 Rg2 Kc3 c4 Ne8 Rh2 N8g7 Rg2 Kd2 c3+ Kd3 Rh2 Rc1 c2 Qa3 Rg2 Ba5 Rh2 Re1 c1Q Re2 Qe1 Rc2 Qg1 Rc5 Qd1+ Kc4 Rg2 Nc7 Rh2 Rd6 Rg2 Nb6 Rh2 Nce6 Kf6 Qc1 Bg3 Qc3 Rhd2 Qa3 Bf2 Nd7+
1r1N1q2/1Qn1PR1K/6NP/bk6/2q1rQPp/1Bnb1r2/4RBn1/B1RB1N2 b - - 0 1 illegal: No proof kernel
1R4Q1/1qRNP1P1/b1P1n1R1/B4Qr1/1qq5/p1N1Knbr/B5k1/R2B2Nb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 c4 Ke6 e4 f5 g4 a5 b4 d5 b6 h5 g6 d4 g5 h4 c6 f4 b5 d3 c5 a4 b7 a3 c7 f3 b6 h3 c6 f2 g7 h2 g6 Nd7 b8N Ne7 b7 Nc5 Ke3 d2 Be2 f1Q Qc2 d1Q Bd2 Ra5 Nd7 Qde1 b8R Ba6 c8R Qc7 Nc3 Qb7 g8Q+ Qf7 g7 Ng6 Rc7 Nh4 Qd3 Bd6 Qc2 Qeb1 Bd1 Nf3 Qd3 Rh3 Qd5+ Ke7 e6 Bg3 Qf5 Kd6 e7 Q1b4 e8B Qfc4 Bf7 Rb5 Bd5 Ne6 Be1 Qf1 Ba2 Qfc4 Nge2 Rc5 Rg1 h1B Bd2 Be1 Rg6 Bg3 Ng1 Re5 Qff7 Rg5 Qf5 Qb2 Nce2 Q2b4 e5+ Kd5 Be1 Qf8 Ba5 Qe7 Rcc8 Qeb4 Rc7 Ne1 Qc8 Nd8 Qb1 Bf3 e6 Bh1 e7 Ne6 Nc5 Ke5 Qg8 Kd5 Nc3+ Ke5 Kd2 Kf4 Ne2+ Kf3 Qf5+ Kg2 Nd7 Nf3+ Ke3 Qg4 Ng1 Qh4 Rcc8 Qhc4 Rc7
B1B3K1/1Q1PRnb1/R1BnP3/PR4n1/r4B2/3bN1q1/r1kp1N1q/Q1N1q3 b - - 0 1 illegal: No proof kernel
3b1R1q/1r1PQr2/Q3p2N/n2k2bQ/1B2q3/P4Nn1/BP1r4/KbNBBR2 b - - 0 1 illegal: No proof kernel
RB1rN3/b2P1NKQ/brQp3R/2P1n1P1/1B1q1k2/NqR2B2/q6b/N2n4 b - - 0 1 illegal: No proof kernel
3R4/k2Prbq1/2Pb1n2/1bNR3N/4rNQP/RBK4p/4BrqN/Q1B2n2 b - - 0 1 illegal: No proof kernel
1rb2k2/N1P2N1R/3BN1KR/BQnq1p2/NP1RQ1n1/2qr4/4B1nP/b6r b - - 0 1 illegal: No possible last move
Q1q1B1QN/2P2Nrp/3B1k1r/2RqN3/1q4P1/Rb1b1PQ1/2n2b1B/1nK4N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 b4 d5 c4 e5 g4 a5 f3 a4 g6+ Ke7 f6+ Ke6 g7 e4 c6 d4 b6 a3 f7 d3 c5 a2 b5 Qh4 b7 Qd8 c7 Ra7 b6 Ra5 c6 Nf6 g8Q Qd6 Qe1 Ra4 Nh3 Qd5 Na3 Bc5 Qg3 Bf2 Nc4 Ra6 Ba3 e3+ Kc1 e2 Bd6 Ne4 f8N+ Kf6 Ne5 Nd2 Nfg6 Bf5 c8N Nb1 Rh2 Ra8 Rg2 Na6 b8Q Nb4 b7 Ra6 Qa8 Nc2 b8B e1Q+ Kb2 d2 Bb5 d1B Kc1 Bg1 Nf2 Bd3 Nh1 Qb4 Rd2 Bf2 Re2 Ne1 Rc2 Rb6 Rc5 Bb3 c7 Nc2 Be8 Rc6 Ba7 Ra6 Nce7 Rc6 Nf7 Ra6 Nge5 Rc6 Qf8 Rg8 N7g6 Rg7 Ngh8 Nba3 Rb1 a1Q Qg8 Qad4 Rb2 Nb1 Ra2 Q4e4 Ra3 Qf5 Rc3 Ra6 Be3 Qd7 Rc5 Qc8 Bf4 Qcb7 Be7+ Ke6 Qg1 Qc8 Bh2 Rc6 Qg3 Rd6 Nc4 Rc6 Bf6 Ra6 Be5 Ke7 Bf4 Rh6 Bd6+ Kf6 Nce5
Q7/1rPrBbP1/K1P3Q1/R1RpBN2/B2q1Nb1/k4R1n/1r2n2N/4R1bq b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 a5 Kd3 e5 Kc4 Ke7 f4 h5 b4 a4 g4 d6 g6 e4 f6+ Ke6 b6 e3 Kb5 d5 c4 e2 g5 e1Q f5+ Kd7 f7 h4 f6 a3 g7 h3 c6+ Kd6 b7 a2 c5+ Ke6 g6 h2 c7 Rh4 c6 Kd6 Qd3 Ra4 Nd2 Ra7 Bb2 Ne7 g8N Na6 b8Q Rh7 Nh3 Bg4 Nh6 Nc5 Nf3 Na4 Qa8 Rb7+ Ka6 Nc3 b5 Kc5 b6 Kb4 Nf5 Ne2 Nf4 Qf2 Rc1 Qd4 Rc5 a1R+ Ra5 Bh6 f8B Rb1 f7 Qd7 Rg1 h1B Nh2 Bhf3 Ba1 Rb2 g7 Rh8 Rc5 Ng6 Be7 Rd8 f8R Qe8 Rf7 Rd7 Rh1 Qh8 Rf6 Rb8 b7 Bh5 Qe4 Ka3 Qc2 Bfg4 Rf8 Nc3 Bb5 Ne2 Ba4 Bg5 Qe4 Bh4 Qb1 Bf2 Re1 Bg1 Rf6 Ne5 Qe4 Nd3 Qe6 Nf2 Qf7 Qd1 Qg6 Nh3 Rf8 Qd4 Rf7 Rf8 b8R Qh7 Rbb5 Rb8 Rf8 Rb7 Ra5 Qh6 Qg5 Bf7 Qh5 R2b3 Bc3 Rb2 Qg6 Qd2 Be5 Qd4 Ng2 Qc1 Nf4 Qb1 Qe8 Qbe4 Qa8 Qh1 Rb8 R7b3 Rb6 Ra2 Rb4 Rab2 Rbc4 Rb7 Rc2 Nc1 Rf2 Ne2 Rf3+
1q1n3q/QPBbn1R1/Nbkr4/1n2Q2P/3NB1N1/p4KBP/r2RB2q/4R3 b - - 0 1 illegal: No possible last move
1nRqRb2/1Pr1B2b/k1b1QN2/PBr4q/Qp4n1/rP3Q2/1N5Q/2N1KR2 b - - 0 1 illegal: No possible last move, all moves rejected
1R5K/Pr2q1B1/3Q3Q/1B1rQ1bb/Rq1PpnPN/N3kRR1/1r5N/n3n3 b - - 0 1 illegal: No possible last move, all moves rejected
4B2B/P2q1NbN/1Nrr1k1B/KPr2np1/2Pn2Qn/R2b1qB1/2RQ3Q/8 b - - 0 1 illegal: No proof kernel
3qR2n/P1R2Bp1/3b2P1/1Q1B1N2/4QBr1/2QrqqN1/N1P2bn1/K1n1k2N b - - 0 1 illegal: No proof kernel
2NB2Br/Pp3b2/nP2Nb1q/1r3q1r/6N1/3nQQ2/3kP2N/BRRq1R1K b - - 0 1 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 h5 g4 a4 gxh5 a3 Qa4+ Qd7 Qxa3 Qd6 Qa7 Qd8 Kf2 Ke7 Kg2 f5 h4 g5 a4 c5 d4 g4 b4 c4 e6 Kf6 e7 g3 e8N+ Kf7 a5 c3 a6 c2 d6 Ke6 b5 Kd5 d7 Ke4 h6 f4 h5 Qg5 d8N Nc6 h7 Bd7 h6 Qf5 d5 Ne5 d6 Qg6 Ne6 Rb8 Nf3 Nc4 Na3 Qg4 Rb1 Nb2 Nh2 Be7 Nc4 Qf5 Ne3 Nf6 Neg4 Nd3 Bb2 c1Q Ba1 f3+ Kg1 Qd2 Bh3 g2 b6 Bc6 d7 Nd5 d8B Bf6 Rf1 N5b4 Nd6+ Kd5 Qa8 Be8 a7 Na6 Nc8 Ke4 Rb1 Bf7 Rf1 Rg8 h8R Rg5 h7 Rh5 Rc1 Qh6 Rf8 Nf2 h8Q Nd3 Ne5 Ke3 Neg4+ Kd2 Rb1 Bh4 Qd4 Bf6 Qe3+ Kc2 Nf1 f2+ Kh2 g1R Qf3 Rg3 Rg1 Bc3 Kh1 Bf6 Nfh2 f1Q Bg2 Kd2 Qe3+ Kc2 Bd5 Qd1 Qf3 Kd2 Rf1 Bg6 Rf7 Rgh3 Rc7 Bf7 Rcc1 R3h4 Ne7 Rc8 Bb3 Rc4 Nc8 Rb4 Qb8 Rb5 Qe5 Rh3 Bc7 Bg8 Nf2 Qg7 Bd8 Rh7 Ng5 R3h5 Ng4 Qh6 Bf7 Rh8 Ne6 Bh7 Qee4 Bg6 Bg8 Bf7 Qee3+
K1brN3/1QN2Rqn/4Q1R1/3BRrP1/2Q1P1p1/2R3br/Pn2kr2/2B1N2r b - - 0 1 illegal: No proof kernel
1b1n1r2/4QQQ1/7B/2nRPnq1/1rB2B2/P3nQ1P/pN5N/nNRbk2K b - - 0 1 illegal: No proof kernel
Q6N/3b3r/KQ1BpPn1/QP1bbn2/2br2R1/6Pk/BN1R2b1/2qQ2RB b - - 0 1 illegal: No proof kernel
1n4k1/7R/Pb1b1KQ1/bRPb1prQ/2B4Q/2R3Q1/1nb2BP1/1Nr1N1Bq b - - 0 1 illegal: No proof kernel
3r2Nn/2k2b1R/P1pn1bQ1/6qB/5bRr/Nb1BbK1R/1PRQP1Q1/B7 b - - 0 1 illegal: Other
4nnR1/N1R3p1/3P2RQ/1n1bR1Kn/2BqkPP1/2B5/NN1B2bn/4r1rQ b - - 0 1 illegal: No proof kernel
1n2k3/R2RnP2/Ppq4B/Nn1BQbR1/r2n1R2/PQn5/1bNK4/N2Q1r2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 e5 d4 c5 h4 g5 h6 c4 f6 c3 d6 e4 d7+ Kf7 d5 b6 f5 e3 h5 g4 h7 e2 h6 c2 d6 g3 Nd2 g2 Ngf3 g1N Nb3 Ne7 Kd2 e1N Rh5 Qc7 d8N+ Ke8 f7+ Kd7 Nb7 Qd8 Bc4 Na6 Rg5 Rg8 h8Q Rg6 h7 Rg8 Bd5 Rg6 Qg8 Nb8 h8Q Ne2 Qe5 Bg7 f8R Qc7 Nfd4 Nc3 Rf7 Qc4 a3 Qc6 a6 Nb5 N7a5 Rh6 Rb1 Rh4 Na1 Rg4 Rb4 Nf3+ Ke3 Rf4 Bd2 c1N Ndc2 Rh4 Rf4 Na2 Bc1 Nfd4 Kd2 Bf6 Rh7 Ra7 Qge6+ Ke8 d7+ Kf8 Rhg7 Nac3 Rh7 Rc7 Rhg7 Rh1 Rh7 Rf1 d8R+ Qe8 Rhg7 Rc4 Rd7 Ra4 Rh7 Bg7 Ra7 Qc6 f6 Ke8 Qh3 Bh6 Qd3 Be6 Qc4 Bc8 Qb3 Bf5 Be6 Ned5 Rhd7 Ne7 Bd5 Bf8 Rh4 Nce2 Rhg4 Nd6 Ke3 N6b5 Rg6 Bg7 Re4 Bh6+ Kd3 Bg5 Bd2 Bh4 Bh6 Be1 Rg5 Bc3 Ke3 Bb2 Kd2 Nec3 Rh4 Bh7 Rf4 Bf5 f7#
7R/b1b1P1QK/N2kP2Q/rb5b/2rnn3/1pRN2BP/b1N1qN1B/4QB2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Ke3 b5 Kf4 g5+ Kf5 d5+ e6 d4 e4 g4 a4 d3 c4 f6 Kg6 f5 h6 f4 e5 f3 a6 d2 h7 b4 a7 b3 c6 f2 c5 g3 c7 g2 a5 Qd6 c6 Qc5 a6 Qd6 Nh3 g1B Na3 Bg7 Nc2 Bb7 c8Q Qd5 c7 Bc6 Qb7 Bf6 c8N+ Ke8 Nf4 Bd7 Nd3 Qd6 Qe1 d1B Bf4 Bc6 Rc1 Be7 Bg3 Bd8 Qg7 Nf6 e7 Qe6 Nd6+ Kd7 Ne4 Bb5 Kh6 Rg8 h8B Bc7 Kg6 Qc4 e6+ Kc6 Kh6 Rc8 Kg6 Bh5+ Kh6 Nfd7 Kh7 Nc5 Qh6 Kd5 Bhe5 Nc6 Bef4 Nd4 Qg7 Rab8 a8N Rb6 a7 Ra6 Be5 Ra5 Qh6 Qb4 Bd6 Qd2 Bde5 Qe2 Bef4 Bd8 Nc7+ Kc6 Na6 Bc7 Na1 Kd5 Rc3 Kc6 Nc2 Kd5 Bh3 f1B Nef2 Ne4 Qg7 Bg2 Qh6 Bgf3 Bf1 Bg2 Ne5 Kd6 a8Q Bb8 Qb7 Rc4 Qa8 Bc7 Qaf8 Bh3 Qfg7 Nf5 Nfd3 Ba7 Nf2 B3g4 h3 Nd4 Rg1 Nd2 Bh2 Bf5+ Rg6 Bd3 Bfg3 Ne4 Rf6 Qe3 Rf8 Qe2 Na3 Bc2 Rh8 Bb1 Nc2 Ba2 Ned3+
BbR3k1/N1R1p2R/PKBNnP1b/3Q1P2/3Q3n/2Nq3b/3B3r/b2N2br b - - 0 1 illegal: No proof kernel
Q1rq2bN/8/1N2k1K1/r1b1Q2R/2p1P1P1/RR3B1R/3BnP2/1n1bnnQB b - - 0 1 illegal: No proof kernel
Q5r1/1nN1q3/1nrbBB1B/1KQR2Rn/PR2Q3/2Q2nbP/1pbP2N1/1k6 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 a4 c5 h3 g5 d6 e5 d7 g4 a6 g3 h6 g2 a7 Bd6 f6 Qe7 d8R Bf5 h7 Nd7 f7 Ngf6 f8B Rg8 h8Q Nh5 Qg4 Rc8 a8Q Nb6+ Kb5 c4 Bb2 c3 Nf3 g1N Bc4 c2 Bh6 c1N Be6 Kd3 Nc3 Kc2 Nh4 e4 Ng2 e3 Nd5 e2 Bf6 e1B Rb1 Bg3 Nc7 Nd3 Rb4 Nf3 Rg1 Nc5 Rd7 Bg6 f5 Bh7 Bh4 Bg6 f6 Bh7 f7 Bg6 Nd5 Rc6 f8Q Bf5 Nc7 Bg6 Ne1+ Kc1 Qc3+ Bc2 Rc4 Kb1 Qe4 Nc8 Bf6 b6 Kb4 b5 Rd8 Nb6 Ng2+ Ka2 Ka5 b4 Kb5 b3 Rb4 Nb7 Rd7 Bde5 Rd5 b2 Qg7 Bef4 Qg5 Bd6 Qge3 Be1 Qec5 Beg3 Ne1 Kb1 Rg2 Bge5 Rg5 Bg3 Ng2
1Rrb4/RBRrR3/1r4k1/2K1Q1B1/p3r1n1/1qB1N1b1/P1QnPQ1P/N1b5 b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 b5 cxb5 h4 d3 h3 gxh3 Ne7 h4 Bb7 h5 Be4 dxe4 Ng8 Kd2 c5 Ke3 a5 b4 f5 e6 d5 e7 Kf7 e8R g5 e5 a4 h6 g4 h7 c4 Kd4 c3 e6+ Kg6 e7 f4 b6 f3 b5 c2 b7 g3 b6 f2 Nd2 g2 Nh3 g1B Nb3 Na6 b8Q Nh6 b7 Nc5 Qg3+ Ng4 b8R Ra6 Bg5 c1B Qc2+ Ne4 Bg2 f1R+ Nf2 Rb6 Rb1 Qc8 Qf3 Qe6 Na1 Rg8 h8B Bh6 Bh4 Bhf4 Bg5 Bg3 Qe3 Qf7 Nd1 Rf4 Qf2 Rf8 Ra8 Rg8 Reb8 Rc8 Ra7 Qe6 e8Q+ Qf7 Qc7 Nd2+ Kc5 d4 Bb7 d3 Ne3 Re4 Qe5 Qb3 Bg7 Nc4 Rb2 d2 Rc2 d1R Rd2 Rh8 Rd7 Rc8 Re7 Nd2 Qc3 Nf1 Qc2 Rd7 Bc3 Nd2 Qf1 Rg8 Qe5 B1f2 Qe1 Bh4 Rf1 Bfg3 Rff8 Rh8 Rfc8 Rhd8 Rc7 Rc8 Bh6 Bg5 Qf2 B5h4 Re8 Bf6 Bg5 Bd8 Re7
4bnQr/3R2K1/krBb2R1/Q3pr1Q/1BnPN3/N1Pr1P1R/B2q2Q1/4n3 b - - 0 1 illegal: No proof kernel
1krQK2n/3B2Rb/QR1BP2Q/4Pn2/1n1p1b1r/Q1n4b/P1RN1BN1/1q6 b - - 0 1 illegal: No possible last move
5Nn1/2b1Br1b/2P1rR1N/k2nr2p/1bb2PQP/2QqB2Q/3R1R2/B4B1K b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 e4 h5 f4 a5 Kf2 d5 Kg2 Kd7 h4 Kc7 c4 g5 e6 g4 c6 Kb6 c7 d4 e7 a4 e8Q d3 e5 g3 c5+ Ka5 b6 a3 e6 a2 c6 d2 f6 Na6 e7 Nb4 f7 Ra6 b7 Ra7 b8B Bf5 c8Q Bg7 f8B Rh7 Rh2 Qc7 Nf3 Bg6 Kh1 Qd8 Be5 Rh8 Ng5 Na6 Rf2 Rh6 Nh7 Qd3 Na3 Nc7 Qh3 Nd5 Qdg4 d1B Be3 Bb3 Nc2 Bc4 Rd1 a1R Rdd2 Re1 Ba1 Be5 Nd4 Bc7 Nf5 Rb7 Qc8 Ra7 e8R g2+ Kh2 g1B+ Kh1 Rb7 Be7 Re2 Nf8 Bh7 Rd8 Re6 Rd6 Re5 Rf6 Re6 Bed4 R2e5 Nh6 Ra7 Be3 Rb7 Rf3 Bf2 Qb8 Be1 Rff2 Ra7 Qb3 Rb7 Rb2 Bb4 Qc3 Bd8 Bd6 Rf7 Rbd2 Bc7 Be7
1r2Bb1N/2n4q/1P1r3R/K1Pb3N/NR2r1P1/1p1QQ2k/R2BQr2/1b2R2n b - - 0 1 illegal: No possible last move, all moves rejected
Rr1Q1qn1/3r2k1/1P2P3/b2B1bQ1/Pbb5/B1B1nK2/1rQpQ1NN/5R1R b - - 0 1 illegal: No possible last move
NR2R1nN/nr2Q3/1pQb1b2/1R3nBP/kP1RQ3/6rP/2q3nK/1B2b2B b - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 h3 a5 b6 a6 Bb7 axb7 Bc5 gxh3 Be7 h4 Ba3 h5 Bf8 Kf2 Kd7 Kg3 f5 b4 g5 e4 c5 d4 a5 e6+ Kd6 e7 a4 e8R c4 h3 f4+ Kh2 g4 e5+ Kd7 d6 Kc6 e6 Kb5 e7 a3 d7 a2 d5 f3 d6 f2 Qd4 Qc8 d8Q Nc6 b8R Ka4 d7 c3 Bg5 c2 Qe4 c1N Na3 Rh7 Qc7 Nd3 d8Q Ne1 Nb5 Na7 Nf3 Ng2 Ne5 Rg7 Rc1 a1B Ng6 Bf6 Rc5 Rf7 Bd3 f1N+ Kg1 g3 Nh8 Rh7 Qcc6 Nfe3 Bb1 Nf5 Qdc7 Bc3 Re5 Be1 Q7b7 Bg7 Rh2 Bf6 Nc7+ Kb3 Rb5 Ka4 Rd8 Rf7 e8B Rh7 Rd4 Rg7 Na6 Re7 Qbc7 Rd7 Qce5 Rb7 Qe7 Qc7 Bf7 Qc8 Bd5 Qc7 Qcd6 Qc3 Nc7 Qc2 Rf8 Rc8 Na8 Rc3 Bc6 Ngh4 Qdd5 g2 Rb8 Rg3 Rh1 Be5 Kh2 Bf6 Rf1 g1B+ Kh1 Bc3 Re1 Ng2 Qdd7 Be3 Kh2 Bf4 Bd5 Bcd2 Qc6 Bd6 Q4e6 Nf4 Bh1 Ng2 Qed5 Bc3 Re6 Be1 Qe4 Bc7 Qd8 Bf4 Re8 Bd6 Qde7
3B1rk1/QR3R1n/P1N1B1n1/3K1n2/7b/NP1N1Brp/1QnqPbb1/3Q1N2 b - - 0 1 illegal: No proof kernel
1B1Rr1r1/2N2nQP/4QN2/k2n1bR1/1b1pQ1Pb/3QrP2/2R3B1/1rq1B1K1 b - - 0 1 illegal: No proof kernel
bK3Q2/1NBBrRP1/2r3Rb/Q2n1Q1P/1R2Np1B/rB5r/P4b1n/q2k4 b - - 0 1 illegal: No proof kernel
4Kn2/QnBRB1PP/1Q2BN2/b3p3/Nb1P3k/2n1q1n1/b2B2N1/R1Rr1r2 b - - 0 1 illegal: No proof kernel
2rkQNb1/1B2bP2/2Q2n2/2r1BPqP/p1NrR3/5R1K/B2r1N2/1Nn2n1Q b - - 0 1 illegal: No possible last move, all moves rejected
Bq6/n2RP2Q/Kb1Q4/1nPp1bQ1/B3P2N/r2R1Bb1/4kr2/RrB3rN b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 g4+ Ke4 c4 h5 e6 f5 e7 d6 g6 h4 c6 h3 c5 a6 c7 f4 Ka5 h2 b4 f3 g7 f2 b6 Ra7 g5 Bf5 c8B Bg4 b5 Rc7 b7 Nf6 g8B Rh5 b6 Nd5 Bd7 Rh3 Qd2 Bf5 Nf3 Nc3 Nh4 Nb5 Bg2+ Rf3 Rg1 h1R Rd1 f1R e3 Rhg1 g6 Bh6 g7 Rf2 Bh7 Qf8 g8Q Bf4 Qf7 Bg3 Nc3+ Ke5 Bc6 d5 Ne2 Ke4 Bg6 Rd7 Qh7 Rd6 Bge8 Rh6 Ng6 Rhh1 Nh4 Qg8 Qc3 Qf8 Qcg7 Qh8 Qg5 Qb2 Bd2 Kd3 e4 Bc7 Ng3 Bd8 Nf1 Ke2 Bc1 Rb3 Rd3 Qe5 Ka4 a5 Bed7 Rh3 Be8 Rb1 Ng3+ Ke1 Nh1 Ke2 Bcd7 Nc6 b8R Qf4 b7 Nca7 Bc6 Bb6 Rd8 Rhf3 b8Q Qd6 Qc8 Qb8 Ba8 Re3 Qe6 Rg3 Bb2 Re3 Rd7 Rg3 Kb3 a4+ Kb4 a3 Qd6 a2 Ka4 Rbd1 Bc1 Rh3 Rb1 a1B Kb4 Be5 Ra1 Bg3 Ka4 Nc8 Kb4 Ba7 Ka5 Bb6+ Ka6 Rde1 Bd2 Rb1 Bc1 Nca7 Rc7 Na3 Ba4 N3b5 Rd7 Bf4 Rd1 Ra3 Rd3 Bg3 Bf3+
2KBq3/R1B1P1b1/Qrr2b1P/1B1P3b/3bBN2/R3N2r/3n1QNp/n1kQ4 b - - 0 1 illegal: No proof kernel
2Q5/nk1BP1n1/1qr1b1Qp/r1R1b2b/4Kn1P/BN1R1Q1B/2P4b/2N1N1B1 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 Kf2 a5 Kf3 d5 g4 Kd7 e4 Kc7 h4 f5 c6 a4 e6 h6 e7 a3 e8B d4 e5 a2 g6 d3 e6 f4 g7 d2 e7 Ra6 g5 Bf5 b6+ Kc8 b7+ Kc7 g6 Ra8 Nc3 Qd4 Bh3 Qd8 Nce2 Nf6 g8Q Ra5 g7 Nd5 Ba3 Be6 Ke4 f3 Nc1 f2 Qf3 f1N Bd7 d1B Rb1 a1B Rb5 Bc3 Rc5 Be5 Qh7 Nfe3 g8N Bd6 Nf6 Nf4 Qg6 Bg7 Rh2 Be5 Rd2 Nf5 Rd3 Kb6 c7 Nc6 b8B Na7 c8Q Bd6 Qe3 Bh5 Nf3 Rf8 Qf2 Bh8 Qf1 Ng7 Ne1 Qc7 Qf3 Rf7 Ng4 Rf6 Ne3 Be5 Nf1 Qd6 Qd8+ Kb7 Nd2 Qb6 Bc7 Bd4 Qg8 Bg1 Ndb3 Bh2 Qd8 Beg4 Be5 Rc6 Bd4 Be6 Qde8 Nf5 Be3 Be5 Bg1 Ng7 Qc8+
2n1R3/nK2P3/B2P4/PQ1Qb1bQ/Qq2b1N1/rBrN2p1/2R1n3/1R1k2Bb b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 c5 Ke4 g5 a4 b5 h4 g4 d4 c4 d6 Kc6 d7 c3 h6 f6 e6 g3 h7 b4 d5+ Kc5 e7 Kc4 e8Q c2 a6 Kb3 h5 Bd6 a5 Ra7 h6 Nc6 Nd2+ Kc3 Nb3 Bf4 Rb1 Be3 Rh2 Bf4 Be3 c1B Nh3 Bb8 Bg1 Be5 Nf2 Qc7 d8Q Rb7 a7 Bg5 a8B Nge7 Nc5 b3 Rb2 Qb8 Ncd3 Na7 Ng4 Rb6 e3 Bb7 Qb5 Nec8 Qd6 Rf8 h8R Rc6 h7 Rd8 Re8 f5+ Kf3 f4 Ke4 f3 h8Q f2 Qh5 Rd7 Qa3 Rf7 d6 Rf3 Be2 f1B Kd5 Bh3 e4 Bg2 Qaa4 Bh1 Rg2 Bef6 e5 Rc5+ Ke6 Be4 Kd7 Bg7 e6 Be5 e7 Rc4 Ra2 b2 Bd5 b1N Rb2 Rc5 Bb3 Qb6 Qc6 Qb4 Kc7 Re3 Qf1 Rc4 Qff7 Rc5 Qd5 Rc4 Bc2 Kd2 Bb3+ Rc2 Rh2 Nc3 Qcb5 Rf3 Bf1+ Ne2+ Kb7 Re3 Nf4+ Ke1 Rf2 Rcc3 Rh2 Nd4 Rhc2 Kd1 Bfc4 Rf3 Nd3 Ne2 Qb6 Re3 Ba6 Rf3 Qbb5 Bh8 Nf4+ Rcd3 Bc4 Bd4 Ba2 Ra3 Bb3 Rc3 Nd3 Be5 Rb1+
1n3BN1/3P1KQb/r1nRBQ2/2Q1bn2/4N3/k1B1P2N/p2Pr2b/RB3nq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 Ke4 g5 Kf5 a5 h4 g4 b4 a4 d6 a3 e6+ Ke8 d7+ Ke7 h6 Kd6 h5 c4 e7 g3 e8B g2 e3 f6 Kg6 a2 h7 f5 h6 c3 b6 c2 b5 Kc5 b7 Kb4 b6 f4 Qh5 f3 Nc3 f2 Bd3 f1N Kf7 Ra7 Ne4 Qg5 Ba3+ Kb3 Nh3 c1N Bb1 Qa5 Qc5 g1B Bb2 Ne7 Bc3 Rg8 h8Q Ra6 h7 Nf5 Qg7 Bh2 h8Q Bfd6 Qf6 Bdf4 Qhg7 Nd3 Rg1 Qb5 Rg6 Nb4 Rh6 Ka3 Rg6 Nc6 b8N Be5 b7 Qe2 Rh6 Qg4 Rg6 Qg1 Rh6 Nce7 Nc6 Rh8 b8B Bb7 Bd6 Rg8 Nd8 Nc6 Bf8 Nb8 Nc6 Rh8 Ne7 Rh7 Ng3 Be4 Ng8 Bc2 Rg6 Rh4 Rh6 Rg4 Ne4 Rg2 Qh4 Re2 Rd6 Kb3 Qhf6 N4c6 Ke6 Ka4 Bh5 Bd3 Kf7 Kb3 Qc4+ Ka3 Bg4 N5g3 Be6 Bc2 Neg5 Bh7 Ne4 Nf5 Qc5+
RnQ2b2/2KP3N/6Br/B1n2brP/1QpB2b1/2b1N1kN/1Q2PR2/1r2Q1q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Kg3 g5 d4 f5 h4 c5 b4 a5 d6 Ke6 d5+ Kd7 h6 g4 Kf4 g3 h5 c4 e6+ Ke8 Ke5 g2 d7+ Ke7 h7 f4 b6 a4 b5 f3 b7 f2 b6 a3 Be3 a2 Bd4 Nh6 Rh2 Ng8 Qe1 Ra4 Nh3 g1B Nc3 Na6 b8Q Ra5 b7 Ra3 Nd1 Rg3 Ne3 Nf6 Bg2 f1B Be4 Qb6 Rf2 Nc5 Bg6 Bg2 Qc7 Bf3 b8Q Bg4 Qcb7 Qa7 Qbb4 Bf5 Qb2 Rg5 Q8b4 Bg4+ Kf4 Kd6 d8B Bf5 e7 Nd7 Ba5 Nb8 e8Q Bce6 Qc8 Bg4 Bf7 Bef5 Bg6 Rg8 h8N Qg7 Rd1 a1R Rd2 Rb1 Nf7+ Ke7 Rd3 Rh8 Ra3 Qg8 Ke5 Rh6 Qa6 Kd7 d6 Bh2+ Kd5 Be5 Ra4 Ke8 d7+ Ke7 Qc8 Kf6 Qa1 Nba6 Kc6 Nb8+ Kb6 Ke6 Qab2 Bf6 Nf1 Kd5 Kc7 Ke4 Ne3 B6g7 Ne5 Bh8 Nf3 Qg7 Nhg1 Kf4 Nh3+ Kg3 Ne5 Bf3 N5g4 Qg8 Nf6 B3g4 Nh7 Bhg7 Bb6 Bf6 Ra8 Bh8 Bf6 Bhg7 Bd8 Bc3 Ba5 Qg7 Be7 Qd4 Bf6 Qd1 Bd4 Qc1 Qed2 Qg1 Qe1
b4Q1n/1NQPn1B1/2R2Rk1/1rN1p1P1/R4q1b/P3n3/N3brb1/1B1RB1K1 b - - 0 1 illegal: No possible last move, all moves rejected
2N3r1/1N1P2rb/k4rPr/b1B2Q1Q/3R2K1/Nbq5/1RRPN1p1/1B3Bnn b - - 0 1 illegal: No proof kernel
qnb2bn1/2P4B/1NpQn1Q1/1RR1N3/r1N3r1/1b2n1Pk/3NPB2/QKB5 b - - 0 1 illegal: No proof kernel
1q1n2K1/1RPrQ1Np/2NR3B/1P3nrN/2Rn1Nkr/2b4P/4b3/1BBr1Q2 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 Kf7 Kc3 d5 Kd4 g5 c4 a5 e4 g4 f4 g3 c6 g2 f6 Ke6 c5 a4 f7 a3 f5+ Ke7 f6+ Ke6 c7 a2 c6 Ra6 Nd2 Bd6 f8B Nh6 f7 Ra8 Bd3 Bd7 c8R Qg5 Ne2 g1R Nc4 Be7 Na5 Ra7 Qf1 Rg2 Bb1 Ng8 Bh6 Qg4 f8Q Qf4 c7 Bb4 Rd8 Rg5 Nc6 Ra4 Qc5 Qf8 Nf4+ Kf7 e6+ Kf6 e7 Bg4 Rg1 Be2 Rg4 Be1+ Qb4 Bc3+ Kc5 d4+ Kd6 d3 e5+ Kf5 e6 Qe8 Rd7 Qd8 e8N Ne7 Nf6 Rhg8 Qa3 R8g7 N6h5 Re4 Qb4 d2 Rh4 d1N Qa3 Ne3 Qb4 Nc2 Qa3 Nd5 e7 Nd4 e8N Ne3 Rg4 Ng2 Kd5 Nh4 Qe7 Qc8 Rd6 Qb7 Qd8 Rd7 Qe7 Qb6 Rg3 Qa7 Rd3 Qb7 Rd2 Qa7 Rc2 Qa8 Neg7+ Kg4+ Qe5 Nhf5 Qe7 Be1 Rc4 Bc3 Nfe6 Rf4 Ke5 Qa7 Kf6 Qb7 Kf7 Qa8 Ncd8 Nbc6 Kg8 Re4 Nef4 Qa7 Nb7 Nd8 Na5 Qb8 Nc6 Re3 Ra4 Rh3 Ra7 Rh4 Rb7 Qa7 Bd3 Qb6 Rb1 a1R Rb4 Qa7 Rc4 Qb8 Bb1 Ra2 Re6 Rd2 Rd6 Rd1 h3+
R3n1Br/Q1P1p1rR/1B1rN3/P1q5/2QPKRQ1/7n/NNnb2R1/2kbn3 b - - 0 1 illegal: No proof kernel
3nrNBn/b1pB2Qn/PPb5/q1rb1K2/1NRBR3/3QQ3/1P6/nk1N2N1 b - - 0 1 illegal: No proof kernel
1R1N1B2/2p1P3/rQ2n2K/1bQnnr2/bb2qR1B/1NN1bP1B/1BRP3k/8 b - - 0 1 illegal: No proof kernel
3n1RB1/nP2r2Q/1Q3QnK/rN3q2/PNb4p/2QnRk2/1b2N1rP/2B3B1 b - - 0 1 legal: proof: d4 a5 g4 b5 b4 f5 bxa5 e5 gxf5 b4 dxe5 b3 cxb3 Ne7 b4 Ng8 b5 Bc5 Be3 Ba3 Bc1 Bf8 Kd2 Ke7 Ke3 d5 Kf4 c5 Kg5 h5 a4 c4 e4 c3 f4 d4 b6 h4 e6 Kd6+ f6 c2 a6 g6 a7 d3 e5+ Kd5 e7 Ke4 e8N d2 b7 Bb4 e6 Bc3 f5 Qd4 e7 Qd5 f7 Qb3 f8Q Nd7 f6 Ne5 f7 Rh7 Ra3 Qe6 Bc4 Nc6 Ne2 Kf3 Qe1 d1N Nc7 Nd8 e8Q Ne7 Nb5 Qh3 Ba2 Be6 Qd7 Bc4 Qg7 Qe6 f8B Qe4 Bb3 Bb2 N1c3 Qe6 Nd5 Nc3 Qh6 Rf7 Qg7 Qf5+ Kh6 g5 Nb4 g4 Qf6 Ng6 Bc5 g3 Bg1 g2 Qc7 Re7 Qcb6 Ne4 Qd2 Nd6 Qdd4 Nc8 Qd7 Rb8 a8Q Na7 Qdd4 Rc8 Qd2 Rc5 Qdc3+ Bd3 Bg8 Rce5 Bd4 g1R Bde3 Rg2 Bg1 Rc5 Qc8 Rd5 Qd7 Rde5 Nd6 Ra5 Nb5 Re8 Qh7 Re7 Bge3 Bc4 Rd1 Re6 Rd7 Re4 Rf7 Re6 Rf8 Re7 Bcd2 c1N Bg1+ Nd3 Bc1 Re5 Rb3 Re7 Qc2 Ba3 Nbc3 Nf2 Qd2 Bb2 Nb5+ Kg4 Re3 Nd3 Re4+ Kf3 Qdc3 Rg3 Re5 Rg2 Re3+
1b1rQ2b/qP3P2/pRr5/R1N2b1n/QNNk1B2/2rr1Q1B/nP1N3K/1R6 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kd7 Kf2 Kd6 Kg3 Kc5 d4+ Kb6 h4 e5 f6 c5 h6 g5 f5 c4 d6 a6 f7 g4 h5 c3 d7 e4 f6 c2 h7 e3 d5 Kc5 b6 e2 h6 e1R b7 Re2 d6 Kc4 Ra5 Qe7 d8N Bf5 d7 Bg7 f8Q Qd6+ Bf4 c1R Ne6 Rc3+ Nf3 Nc6 d8N Qd4 Qa4+ Nb4 Nc6 Rd8 Bh3 Rd2 Nc5 Rdd3 Nd2+ Kd5 f7 Na2 Nc4 Nf6 Qe8 Nh5+ Kh2 Rc8 Qe3 Rhd8 Rb1 Bh8 Nfd2 Rc7 Qf2 Qe3 Nb4+ Kd4 Qf3 g3+ Kh1 g2+ Kh2 Be5 h8Q Rc6 Qf8 Bb8 h7 Qf2 h8R g1B+ Kh1 Bh2 Qe8 Be5 Rh6 Bh8 Bg5 Bb8 Bf4 Qe3 Kh2 Qe7 Nce4 Qc5 Rf6 Qa7 Nc5 Rcc8 Rb6 Rc7 Qe7 Rc6 Qe8
2nQ2rq/1pb2bBk/1P1n4/K3NNP1/5rnn/RQ6/1QRPb1BR/BB6 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 a3 Qa4+ Bd7 Qxa3 Be6 Qa7 Bc8 f4 Kf7 g4 Kg7 a4 e5 b4 c5 b5 h5 d6 e4 f6+ Kh7 f7 c4 b6 c3 g6+ Kg7 d7 e3 g5 c2 a5 h4 f5 h3 a6 e2 Bb2+ Nf6 Ra3 c1N Ba1 h2 Nf3 Bc5 f8B+ Kg8 g7 Qe7 d8Q Ng4 f6 Qe3 f7+ Kh7 g8B+ Kg6 Bfg7 Qe5 f8Q Nc6 Nc3 Nb3 Ne4 Be6 Nd6 Rh4 Nf5 Nba5 Bg2 Nc4 Ra2 Qd4 Rc2 Nd6 Qfe8+ Bf7 Qe6+ Qf6 Qb3 Ne7 Qab8 Qc3 a7 Nec8 Qbc7 Rb8 a8R Be3 Ra7 Bf4 Ra3 Qd4 Qcc3 Qf6 Bh6 Qh8 Qcb2 Ra8 Bg7 Rb8 Rf1 h1B Rf2 Bg3 Bh3 Be5 Rh2 Ra8 Ne3 Bg2 Nf5 Bf1 Bg2 Nf6 Qe6 Rf4 Qeb3 Rb8 Kf2 e1N Ke3 Bd3 Qd4 Be2 Qdb2 Be8 Bc4 Bf7 Bd3 Ra8 Bh3 Kh7 Bg2+ Rh4 Be4 Bg3 Kd4 Ng4 Ne5 Nf3+ Kc3 Nb5+ Kb4 Ne7 Nd7 Nf2 Qc8 Bc7 Rc3 Nd6 Ne5 Rb8 Qd7 Rg8 Ka5 Nec8 Bh6 Rg4 Bg7+ Nh4 Bb1 Rf4 Rc2 Ng4 Qd8
n1kN3Q/P2PB3/1b1P1Nn1/b4b2/3q1rR1/KRp2B1n/1RQ2RB1/1Q3b1r b - - 0 1 illegal: No possible last move, all moves rejected
nb1R2b1/1qk2R2/3QbNr1/Nrn3q1/4B1N1/PQB2N2/1Pp1P2R/1Bb4K b - - 0 1 illegal: No possible last move
b1BN4/r1bKn1n1/b7/3R1N1k/1q1RPp2/3PQ1b1/r3NRPq/B3Q1NB b - - 0 1 illegal: Other
nB4q1/N3Bbr1/4b2n/Q1NNbPr1/bP1R1p1q/1BR2P2/1Q1N4/1QK1k3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 f4 d4 Qb6 dxc5 Qf6 Rh2 Bb7 Rh1 Qf5 exf5 Bc8 Kd2 Kf7 g4 e5 b4 a5 c4 h5 b6 d5 b7 a4 g6+ Kf6 c6 Kg5 g7 a3 c5 a2 c7 h4 c6 d4 Rh3 d3 Bb2 e4 Nc3 e3+ Kc1 e2 Nd5 Be6 c8N e1Q c7 Rh7 Nd6 Nh6 g8Q+ Rg7 c8N Na6 b8B Nc7 Nb7 Bd6 Na7 Be5 Qh8 Bf7 Re3 h3 Nc5 Kh4 g5 h2 g6 h1B Nf3+ Kg4 Rb1 a1Q Nd2+ Bf3 Re4 Qa2 Rd4 Be2 f3+ Kg3 Ba1 Kf2 Rb3 Be6 Rc3 Qc4 Nb5 Ra6 Bb2 Na8 Na7 Rc6 Qd8 Rc8 Qa5 Rcg8 Bg2 Qh1 Bf1 Qh4 Qc2 Qa2 Qb1 Ke1 Ba1 Bd1 Be2 Ba4 Bd1 Be8 Bb3 B8f7 Bd6 Qa4 Be7 Qe8 Qb2 Rh8 Qb1 Qg8 Bb2 Ng4 Ba1 Rh5 Qb2 Nh6 Qb1 Rh7 g7 Rg5 Bb2 Qb8 g8Q Rhg7 Qh8 Qg8 Ba1 R5g6 Rc2 Qd8 Bc4 Rg8 Ndb3 Bb8 Re4+ Kf1 Nc7 Rg5 Nd5 Bd6 Qf6 R8g7 Be5 Bb8 B5d6 Qg8 Qfb2 Bc7 Rd4 Ke1 Rc3 d2+ Kc2+ d1B+ Kc1 Bb8 Nd2 Ba4 Bb3 Bc7 Bd8 Bb8 B6e7 Bd6 Bc7 Be5 Bb8
n3n1BK/1n1Q2BQ/1q3RR1/R1P2Rr1/1PNN1Pp1/1rN1b3/2k3n1/1b1q2B1 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 Kf6 Kd4 d5 h4 a5 c4 g5 f4 g4 b4 e6 c6 a4 c5 a3 h6 a2 h7 Qe8 h5 Ra3 h6 Qd8 b6 Bg7 c7 Nd7 b7 Nb6 b8R Rb3 Rh5 Na8 Be3 Bd7 c8N Qb6 Nc3 e5+ Kd3 e4+ Kd4 Bb5 Nge2 Bd3 Bg1 e3 Nd6 Bc2 Nc4 Bb1 Ng3 e2 Rd8 e1N Nge2 Ne7 Rg8 Nc8 Bg2 Nd6 Bf1 Ke7+ f6+ Ke6 Rf5 Ne8 Qd2 Ng2 Qd3 Bf8 Rg6 Rg8 h8B Be7 f7+ Bf6+ Ne5 Rg7 f8R Rg8 h7 Rg7 Rh6 Rg5 Bg7 Bc2 Rd1 a1N h8Q Bb1 Rg6 Nh4 Ke3 d4+ Ke4 Ng2 Qh1 Qd6 Nc4 Qb6 Qc2 d3 Qh7 d2 Qd3 Qa7 Rc1 d1Q Rc2 Qb6 Ra2 Rb2 Ra6 Nb3 Ra4 Na5 Nd4+ Ke7 Kd5 Nb7 Ra5 Rb3 Qd2 Be5 R8f6 Kd7 Nc6 Kc7 Ke6 Bd4 Kf7 Be3 Nd4 Kd7 Kg8 Kc7 Ne6+ Kc6 Nd4+ Kd7 Nc2+ Ke7 Nd6 Ra3 Bd3 Kd7 Kh8 Kc6 Na2 Rc3 Bc4 Rd3 Be6 Ra3 Nc4 Rd3 Ra7 Kb5 Bg8 Rc3 Na5 Ka4 Nc4+ Kb3 Qd7 Rd3 Ra5 Rc3 N4a3+ Kb2 Nd4 Rb3 Nc3 Kc1 Nc6 Kb2 Nc4+ Kc2 Nd4+
4r1Rq/1RnRr3/q1N1Nk2/p1Qrr2N/1Q4PP/1PB4n/1K3Qbb/1B3N2 b - - 0 1 illegal: No proof kernel
1b1B1n2/2N3Q1/3r2PN/QK1p4/1R2r3/PBbnr1kR/R1RPQq2/B3qr2 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 Ba6 c4 Bb5 cxb5 Ra7 Rh3 Ra6 Rh1 Ra8 Ke2 Kf7 Kd3 c5 Kc4 h5 g4 e5 f4 h4 f6 Kg6 b6 d5+ Kb5 e4 f5+ Kf7 a6 c4 a3 h3 a7 e3 b7 e2 Nc3 e1R Bb2 h2 Ra2 b3 Ba1 b2 Nge2 Nc6 b8R Nge7 Nd4 Rh3 Qe2 Ne5 Rb6 Rc8 a8Q Re3 Qa5 Rc6 Rb7 Nd3 g6+ Ke8 g7 Kf7 g8R Rd6 Rb6 Ng6 g5 Qa8 Rh8 Qa7 Rh3 Be7 Rg1 h1R Rgg3 Nf8 g6+ Kg8 f7+ Kg7 Rc6 Kf6 Rg4 Ke5 f6 Re4 Nf5 Qf2 Nh6 b1Q+ Ka4 Rg1 Nb5+ c3+ Rc4 Rg3 Nc7 Rge3 Rb4 Rc1 Kb5 Bd8 Rgg3 Kf4 Rg1 c2 Rgg3 Nh7 f8B Be7 Bg7 Nf8 f7 Re1 Bh8 c1B Bhf6 Bb2 Bh4 Bef6 Rg1 Bfd4 Bd8 Ba7 Rgg3 Bb8 Rg1 Nh7 f8Q+ Bf6 Qg7 Bc3 Bg2 Qd1 Bf3 Nf8 Rgg3 Rh1 Rg1 Qb1 Rc1 Rf1 Rcc2 Qd1 Qe1 Qc1 Bd1 Qb1 Qe2 Qc1 Rcb2 Qb1 Bb3 Qbe1 Rh5 Kg3 Rc2 Nf4 Rh4 Nd3 Rh3+
n5BQ/Bbn2rb1/2N1BPPN/Q1Q1R3/qP2K2R/pr2n2B/1R6/1n1kq3 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 g4 h5 c4 e5 f4 a5 g6+ Kf6 b6 a4 b7 a3 g5+ Kg7 c6 d4 c5 h4 c7 h3 c6 h2 Nd2 Ne7 Nc4 Nd7 b8R Rh3+ Ke4 d3 Ne2 d2 Nd6 Nd5 Nf7 N7b6 Qe1 d1N Qa5 Qd7 Be3 Bb7 c8B Ra7 c7 Qa4+ Nd4 Na8 Nh6 Rg3 Bg1 Rb3 Be6 N1e3 c8Q Ndc7+ Qd5 Kh8 g7+ Kh7 f6 Kg6 g8B Kh5 f7 Bg7 f8Q Kh4 f5 Kg3 Bc4 Kg2 f6 Kg3 Be2 Kg2 Bd1 Kf1 g6 Ke1 Bdg4+ Kd2 Ra2 Kc1 Bh3 Kd1 Kf3 e4+ Kf4 Nf5 Qa5 e3 Qfc5 e2 Q8f8 e1N Re8 Ne3 Bf2 Rc3 b4 Rb3 Bg1 Nf3 Rb2 Nd2 Nc6 Nb1 Ke4 Ng2 Bef7 Ne3 Re5 Nb5 Bfe6 Nbc7 Bf2+ Nf1 Rg1 h1Q+ Rg2 Qg1 Rg4 Qg3 Bd4 Ne3 Rh4 Qe1 Qcb5 Ra6 Ba7 Rb6 Qbc5 Rb5 Qc4 Rd5 Qcc5 Rd7 Bgf7 Re7 Qh8 Rd7 Bg8 Re7 Qa6 Rf7 Qaa5
1Q3Kn1/5Nn1/bn2P2R/5n2/1P1Qr1Pr/B2qp3/R1R2q1b/NR1N1BBk b - - 0 1 illegal: No proof kernel
rb6/1Qq1Rn1q/b3P1R1/n4Pn1/2B1QN1B/1kP5/3rQ1Np/n1B1K1BR b - - 0 1 illegal: No proof kernel
B1RN2r1/8/n1R1pQ2/Nq2BrNP/b3P2K/1r1k2QR/4P1bR/q2rB1n1 b - - 0 1 illegal: Other
kB3q2/1b4Q1/r1RPr1Pp/QN1R3B/rB1Kn3/4Qb1P/2r1RB1q/2N4n b - - 0 1 legal: proof: f4 d5 d4 g5 fxg5 b5 a4 Bg7 axb5 Bf8 c4 Bg4 e4 Bc8 c5 Bg7 exd5 Be5 Ra2 Bh3 Ra1 Bd6 cxd6 Bc8 Kf2 Kd7 Ke3 f5 b4 c5 g4 a5 g6 e5 h3 e4 b6 h6 g5 c4 b5 a4 b7 a3 b6 c3 g7 a2 g6 c2 Bd2 c1Q Nc3 Qc2 Qe2 Nc6 b8B Ra4 b7 Nb4 Rc1 a1R Nb5 Nd3 Ba7 Nf2 b8B Nf6 g8Q Qf8 Bb4 Bb7 Rh2 Kc8 Qg7 Nh1 Qd3 Ra6 Be2 R1a4 Bh5 Qc7 Rc6 f4+ Ke2 f3+ Ke3 f2 Ne2 f1B Nc1 Rg8 Re2 Bg2 Qd2 Bf3 Qc3 Ba8 d7+ Kb7 d8Q Rh8 d6 Rg8 d7 Qh2 Kd2 e3+ Kd3 Ne4 d5 Rh8 Kd4 Rh7 Rb2 e2 Qe3 e1R Qa5 Rh8 Rg2 Re2 Bc5 Rc2 Re2 Rg8 Qh7 Rg7 d8R Re7 Qh8 Re6 Qg7+ Qe7 d6 Qf7 Rf8 Qe7 Rf5 Qf7 Rd5 Qe7 Bc7 Qf8 Bd8+ Kb8 Bdb6 Bb7 Bc7+ Ka8 Bb8 Raa2 Be1 Ra1 Bf2 Ra4+ Bb4
1n2N3/3Nb3/1rQpnR1B/k1Q5/P4R2/nqr2P2/BPb2nNK/B3BqR1 b - - 0 1 illegal: Other
b2Q3K/r1NRQN2/Pk1BqBp1/6bn/2QbB2R/2rRPb2/P2n4/5Bq1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Kg3 b5 Kf4 c5 Kf5 Kc7+ e6 f6 Kg6 f5 d4 c4 h4 b4 d6+ Kc6 e3 b3 d7 c3 e7 b2 e8B c2 h6 f4 d5+ Kb7 h5 f3 a6+ Kc7 h7 f2 d6+ Kb6 h6 Qc7 d8Q Bg4 d7 Ka5 Rh4 Bf3 Nh3 Qb6+ Qd6 Nc6 Nc3 b1B Q6e7 Ra7 Ng5 Nf6 Nf7 Nh5 Ba3 Nd4+ Bd6 Nb3 Nd5 Nd2 Nc7 Qc6 Qc8 Kb6 d8R Qc4 Bc6 c1B+ Be4 Bb2 Qce6 Bd4 Rd7 Rg8 h8Q Qb3 Kh7 g6 Q6f6 Qe6 Qf4 Bfg7 Qg4 Rc8 Qhd8 Bgf6 Kg8 Bd3 h7 Bg5 h8B Bc4 Bf6 Bd5 Rd1 Ba8 Bc4 f1Q Kh8 Qg1 Bf1 Bh1 Qe2 Bf3 Qc4 Nb1 Rd3 Nd2 Nb5+ Rcc7 Qdf8 Rc6 Nc7 Rc5 Qfd8 Rc6 Qd5 Rc3 Qc4
r1k3B1/1Nr2N1p/1n2QqqQ/5b1P/R4K1B/4nRBb/NQ2P2P/1qN3q1 b - - 0 1 legal: proof: f4 b5 a4 e5 axb5 d5 fxe5 d4 g3 d3 cxd3 Qd7 d4 Be7 d5 Bh4 gxh4 Qd8 Kf2 Kd7 Ke3 a5 b4 f5 d4 c5 e6+ Kc7 b6+ Kb7 d6 g5 h5 c4 d7 a4 b5 a3 d5 g4 e7 g3 e8Q c3 d6 g2 Kf4 a2 Nf3 g1Q Bh3 c2 Ne5 Ra5 Nc3 Qc7 d8N+ Ka8 b7+ Ka7 d7 Ne7 Nf7 Qd6 d8N Qdg6 Nd3 Nd7 Qd2 Nb6 b8B+ Ka8 Qe3 Ra7 Nb7 Rg8 Bd2 c1Q Be1 Qb1 Bh4 Rh8 Nc1 Ned5+ Kf3 f4 Be6 Bd7 Qf8 Rg8 Qh6 Rf8 Qe4 Ne3 Bb3 Bf5 Qe6 Rc8 Be5 Rc7 Bc4 Q1g5 Rf1 Kb8 Bd6 Qg1 Bb3 Nbd5 b6 Ra8 Ne5 Qf7 Nd8 Ne7 b7 Ng8 Qeg6 Ne7 Bd5 Qg7 Bg8 Nc8 Qe6 Q7g6 Nef7 Qb3 Rb1 a1Q Be5 Qba2 Rb4 Q2b1 N3a2 Qd4 Bd6 Qdf6 Ra4 Qh1+ Kf2 f3 Bdg3 Qg1+ Ke1 Ng4 Kd1 f2 Kd2 Ne5 Ke3 Nc4+ Kf4 Ne3 Rd1 f1B Rd6 Ng4 Rd3 Bh3 Rf3 Ne3 Qb6 Re7 Qb3 Kc7 b8Q+ Kd7 Qe5 Nb6 Qbb2 Kc8 Nb7 Rc7 Qe6+
BR3N2/5P1k/4r2q/RqBPRn1N/1nB1QpN1/6nQ/b3Nr1P/b2Kn3 b - - 0 1 illegal: No proof kernel
2b2KN1/B1brNpQ1/qP2rRP1/1knq1N1R/7q/Qn2Q2q/1P6/R2B2R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 c5 Kf4 h5 Kf5 a5 d4 h4 g4 c4 e4 c3 d6 h3 d5 c2 e6+ Ke8 d7+ Ke7 g6 Kd6 e7 Kc5 e8R a4 e5 a3 g5 a2 d6 h2 g7 Kb6 g6 Qh4 e6 Qe7 d8Q+ Kc5 d7 Rh3 Ne2 Nf6 g8N Rh4 Qa5 Qd8 e7 Nh7 Nd4 Bb7 Be3 c1Q Nc3 Qd2 Rg1 h1Q Be2 Re4 Nd5 Ng5 Kf6 Nf3 Nf5+ Nd4 Qa3+ Qb4 Qda4 Bc8 Bd1 Qh3 Qa6 Qa5 d8R Ra7 Rd6 Rd7 Rd8 Bh6 e8Q Bf4 Kg7 Re6 Kf8 Kc4 Qb6 Nb3 Nde7 Na6 Bf2 Bh2 Qe3 Nac5 Qe5 Qa8 Qg7 Qd5 Ra6 Bc7 Bd4 Nb7 Ba7 N7c5 Rc6 Qe1 b6 Kb5 Rd6 Qeh4 Rc6 Re5 Rf6 Re6 Nc6 Red6 Qe3 Re6 Re8 Red6 Re5 Re6 Rc1 a1Q Nce7 Qa2 Ra1 Nc1 Qac3 Qa6 Qa3 N1b3 Nfh6 Qaa4 Rh5 Qa6 Nhf5
n2NbR2/1Q2QpPP/2nB1N2/n2BQ2P/1qQR1rqb/1B4k1/4r1R1/2K4n b - - 0 1 illegal: No proof kernel
BQ1RnQk1/4PR1r/2q1r3/b2q1QnR/1bPpQ1K1/2P5/N1b5/B1b2NB1 b - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 e5 fxe5 b5 a4 c4 axb5 c3 dxc3 Rh7 c4 Rh8 Kf2 a5 Kg3 f5 b4 Kf7 h4 d5 e4 g5 h6 a4 b6 a3 e6+ Ke8 h5 g4 b5 a2 b7 Qb6 e5 Ke7 h7 Qa5 b6 Qb5 h6 Qe8 Nd2 Na6 b8Q Qc6 b7 Nc7 Ne2 Ne8 Bg2 Ngf6 Nf1 Ra6 Be3 f4+ Kh4 f3 Qd3 g3 Nc3 f2 Qf5 Ne4 Kg4 Bd7 Rh5 Ng5 Qa8 Rb6 b8Q Ra6 Re1 a1B Na2 Bb2 Rb1 Bc1 Rb7 Rb6 Be4 g2 Bf3 Rg8 h8Q g1B h7 Rg7 Bg2 Rf7 Qg7 Bh2 h8B Bg1 Qgg6 Rh7 Qh6 Bh2 Bd4 Bhf4 Ba1 Bfd2 Ra7 Ba5 c3 Qc7 Qab7 Rd6 Qbb1 Ba4 Qbe4 Bc2 Qb7 Kd8 Qb8+ Qc8 Rf7 d4 Bg7 Ra6 Bh1 Bc5 Bf8 Bcb4 Bd6 Ng7 e7+ Ke8 Bc7 Re6 Qg2 Bb2 Nd2 f1Q Bd6 Qf2 Nf1 Qd2 Qe2 Bd3 Ba8 Bc1 Qef3 Qc2 Bc7 Qa4 Q3e4 Qd8 Bd6 Qc6 Bc7 Bc2 Bd6 Kd7 e8R+ Qe7 Rc8 Ne8 Rf8 Qd8 Bc7 Ke7 Rf6 Qdd7 Rd8 Rd6 e6 Qd5 Rf8 Rb6 Bh2 Rd6 Bg1 Q7c6 Rg8 Nf7 Rg7 Kf8 Qfe5 Ng5 Rf7+ Kg8 e7 Rg6 Q5f5 Re6 Qf8#
1B1QN3/K2npqB1/bPr2n2/1NQBQ3/1B2R2P/n1n3qR/b3P1N1/2r1k3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 c4 d5 cxd5 g4 a4 Bh6 axb5 Bg5 fxg5 Be6 Ra4 Bf5 Ra1 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 f5 b4 a5 h4 g3 h6 f4 g6 g2 b6 f3 b7 f2 g7 c6 b5 a4 h7 a3 Nf3 g1Q Nc3 a2 Qc2 Bf5 Rh3 Be6 Bg2 Qf8 Ne1 Nd7 Bb2 Ngf6 g8N Rc8 b8B+ Rc7 Bf3 Qg3 Ng2 f1B Kc4 c5 d4 Qf7 b6 Qe8 Kb5 c4 Ka6 Qf7 Rd1 a1N Rb1 Ng4 Nf6 Rc8 Qe4 Nc2 h8B Na3 Bg7 Bf5 Qe3 Bd3 Ra1 Bb1 Bc1 Ba2 Bd2 Rh8 Rb1 Rh6 Rb4 Rg6 Nb1 c3 Ra4 c2 Nc3 c1N Rc4 Nde5 Ne8+ Kd7 d6 Ke6 d5+ Kf5 d7 Nf6 d8Q Ned7 Be4+ Kg4 d6 Rc8 Qc5 Rc6 Nf4 Bg2 Nb5 Rc8 Ba8 Bb7+ Ka7 Ba6 Bb4 Rc6 Qc7 Rg5 Rh1 Rd5 Re4 Rd1 Rf1 Re1 Ng2+ Kh3 Rf5 Kh2 Qe5 Kg1 Rf3 Rf1 Rfe3 Kf2 Qc5 Nd3 Qe5 Nf4 Rc3 Rc1 Rb3 Qh2 Rh3 N4d5 Qc8 Qg3 Bb7 Nf8 d7 Nc3 d8Q N8d7 Ba8 Rc5 Bd5 Rc6 Qcc7 Kf1 Qcd6 Kf2 Qc5+ Kf1 Ne3+ Ke1 Ng2+
N1n1qQ2/2rP1q2/n4B2/1KRqR1b1/Bb2pQB1/Rr1P4/Nk2P3/B4qN1 b - - 0 1 illegal: No possible last move
2K1Q1B1/1r1Pb2B/7q/n3R1pN/6qR/knR2B1P/1BrnP3/1QQN1b1n b - - 0 1 illegal: No possible last move, all moves rejected
R2nr2Q/1BPq1p1r/4B1R1/1PN3n1/3Bn1K1/P1nQ1Q2/2Q1bq2/1kbN3N b - - 0 1 illegal: No possible last move, all moves rejected
5RQ1/RPBrB1nb/pqRQb1k1/2Nr1B2/P2q1n2/1Br2P2/3r4/3N1KN1 b - - 0 1 legal: proof: g4 b5 h4 g5 c4 f5 gxf5 e5 cxb5 g4 d4 Be7 dxe5 Bg5 hxg5 Kf7 Kd2 Kf8 Ke1 Ke8 b4 Kf7 e4 d5 f6 h5 b6 c5 b5 g3 e6+ Kg6 b7 g2 b6 d4 e5 c4 e7 h4 e8R c3 e6 d3 f7 h3 f8B c2 e7 h2 Nc3 Qd4 Bf4 c1R Bc7 Na6 b8N Rh5 b7 Be6 Nd7 Nf6 Nc5 Nd5 a3 Rd8 f3 Rd7 Ra8 Nf4 e8Q+ Rf7 Qd8 Rd7 Be7 Rc2 a4 Ra2 Rc1 Rd2 Nge2 g1Q Qg8+ Kf5 g6 Qge3 g7 Kg6 N5e4 Nc5 Bh3 a6 Ra7 Re5 Bg4 Red5 Rg1 h1R Kf1 Rh2 Rg2 Rc2 Ng1 d2 Rg3 Rg2 Rh3 Re2 Rh5 Rg2 Rf5 Rh2 Rf8 Re2 Qe1 d1B Qg3 Rcd2 Qh2 Bc2 Nd1 Rd3 Qg3 Red2 Qh2 Rc3 Qg3 Nh5 Qd6 Nd3 Bh3 Qb6 Nc5 Ndf4 Bf5+ Kh6 Qf7 Qd4 g8B Bb1 Bgh7 Ng7 Qg8 Kh5 Bc2 Kh6 Bb3 Be4 Bf5 Kh5 Bh3 Bh7 Rc2 Rcd3 Rc4 Rc3 Bf5 Kh6 Ne4 Kh5 Rc6 Kh6 Nc5 Kh5 Bg4+ Kg6 Bf5+
3n1qb1/PQ2nN2/1R5Q/3kbP1B/r4P1p/q4RBN/b1rNK1R1/1B1R2b1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g4 Kd7 a4 Kd6 d4 b5 a6 c5 a5 h5 g6 e5 a7 e4 g5 e3 a6 c4 g7 e2 g6 h4 Bf4+ Kd7 d6 Kc6 d5+ Kc5 d7 b4 d6 b3 Ra3 b2 Nd2 b1B Qc1 c3 Bg3 c2 Rf3 Nf6 g8R Qe7 d8R Kd5 g7 Nc6 d7 Qd6 Nh3 Ba2 Bg2 Bb7 Rb8 Nd8 Rg1 Bc6 Rb6 Qb8 Bh1 Bc5 Rg2 Bd6 Rf8 Be5 g8B+ Nf7 Bh7 Nd8 Bg6 Ng8 Bh5 Ne7 Rf6 Qd6 Re6 Rc8 a8Q Rg8 a7 Rg4 Qb7 Ra4 Rg6 Qf6 Rg4 Qf8 Rgb4 Rc7 Rb1 Rc8 Nf1 Rc7 Qh6 c1B Ra1 Be3 Rd1+ B3d4 Kd2 e1Q+ Kd3 Qa5 Nd2 Qb4 Ke2 Qc3 Rf1 Qa3 Rd1 Ne6 d8N Bc5 Nf7 Nd8 Rc3 Rc8 f4 Bg1 Rf3 Rc7 Qa6 Bd7 Qc8 Rc2 Qc7 Be6 Qb7+ Kd4 Nd6 Bg8 Nf7 Kc5 Rff1 Bd6 Rgf2 Rc3 Be4 Be5 Bb1 Rc2 Rg2 Kd4 Rf3 Kc5 Qc8+ Kd5 Qb7+
k2KN1qQ/P1RBnr2/RRb5/2prb3/1P6/1Nq4P/1rNQ2r1/nBN1B3 b - - 0 1 illegal: No proof kernel
2Kn2NB/Q2B3n/1p1rr3/1P5k/1P1b1q1R/1nRq4/2R1P3/rBNQBq1Q b - - 0 1 illegal: No possible last move, all moves rejected
bRbB3K/1P1q2Bp/RqkQR3/q1nN4/1b3Q1N/4Pr1Q/3R3P/rr5B b - - 0 1 illegal: No possible last move, all moves rejected
Nr1RRQn1/3Rr2b/P5R1/pN2B3/2nnN3/Pr1rkB1Q/1P4K1/2q1rQ2 b - - 0 1 illegal: No proof kernel
rrQ1Q3/r3rr1R/3Q1qRb/3K4/qBn1B1n1/P4p1k/1QRPNP2/1NB5 b - - 0 1 legal: proof: e4 d5 exd5 a5 b4 h5 bxa5 h4 c4 h3 d6 Rh4 gxh3 Rh8 h4 Be6 h5 Bd5 cxd5 Qd7 Ne2 Qc8 Ng1 Qd8 Ke2 Kd7 Ke3 e5 Ke4 b5 h4 c5 h6 g5 h7 f5+ Ke3 f4+ Ke4 b4 a6 b3 a7 f3 h5 g4 a3 g3 h6 g2 Ra2 b2 Qb3 c4 Qe3 c3 Ba6 c2 Be2 Nc6 Rh5 Nf6+ Kf5 e4 Rg5 Na5 Rg6 Nc4 Bd3 Ng4 Ne2 g1Q Qb6 e3 Ke4 Rb8 a8Q Qf6 Qd4 Rg8 h8Q Qd1 h7 Bh6 Qa6 Rgf8 Qg8 Ra8 h8R Rf7 Rh7 Ra7 Qg7 Ke8 d7+ Ke7 d6+ Ke6 d8Q Ra8 Nbc3 b1R d7+ Rb6 Qb5 Rbb8 Nb1 Ra7 Qc8 Rba8 Bb2 c1R Qbb8 Rc3 Bc1 Qa4 Rc2 Rb3 Qb2 Rb6 Qgh8 Rb5 Qg3 Rbb8 d8B+ Rfd7 Ng1 e2 Ba5 e1R+ Ne2 Nh2 Qcf8 Rf7 Bb4 Ng4 Qf4 Rh1 Qg3 Rh5 Qhg8 Re5+ Kd4 Re3+ Kc5 Re4 Qgd6+ Kf5 Qe8 Qh4 Re6 Qf6 Qh8 Kg5 Kd5 Kh4 Qhf8 Re3 Be4 Kh3 Qh8 Qf4 Rg6 Qf6 Bf5 Ree7 Be4 Reb7 Qc8 Rbe7 Qhe8
b3q3/rr2BN2/1Np3k1/rQP1r1R1/QP1P3R/3K1nrQ/4B1q1/b2NB2Q b - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 b5 exd5 b4 h4 b3 axb3 Bf5 b4 Bh3 b5 Bc8 g4 Bd7 g6 Nf6 h5 Ng8 g5 Bc8 g7 Nd7 Rh2 Ne5 Rh1 Ng6 hxg6 Bh3 Bg2 Bf5 Bf1 Bc8 Ke2 h5 b4 e5 c4 a5 c5 f5 d3 f4 b6 e4 d6 h4 b7 e3 b8Q h3 Qe1 a4 Na3 h2 Nc4 c6 Nh3 a3 Qb5 a2 Nf2 Rh7 Nd1 Ra5 Nb6 Ne7 g8Q Nf5 g7 Nh4 g6 Nf3 Qh8 Bb7 g8Q Ba8 Bd2 Rb7 g7 Raa7 Rg1 h1R Qb3 Rh3 g8N Bg7 Q3a4 Kf7 d7 Rg3 Qh3 Kg6 Nh6 Qe8 d8B Bb2 Rb1 a1R d4 Ra2 Nf7 Ba1 Kd3 e2 Be7 Ra5 Qf2 e1R Qfg2 Re5 Be1 Raa7 Qgh1 Ra3+ Qb3 R3a5 Be2 Nh2+ Ne3 f3 Q3a4 f2 Rg2 Nf3 Nd1 f1Q Rb3 Rgg5 Rg4 Qg2 Rh4 Ng1 Kc4 Rg4 Rg3 Nf3 Kd3 Nd2 Re3 Nf3 Re4 Rg3 Rh5 R5a6 Reh4 Ra5 Rg5+
3Q1B1q/3nN2P/6rQ/1Bpn1Q2/P1P2RB1/K1nR1q1N/2r1n2N/1bkBn3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 h5 bxa5 Qh4 g4 Qf6 gxh5 Qd8 e4 Nh6 e6 Ng8 f3 Ke7 f4 Kf6 e7 Ke6 Kd2 Kd6 e5+ Kd5 Ke1+ Kc6 e6 g6 Ba6 Bg7 Bf1 Be5 fxe5 Rh6 Qd2 Rh7 Qd1 Rh8 Kd2 Kc5 Kc3 f5 Kb3 d5 e8B b5 a4 b4 c4 g5 h4 c6 h6 f4 h7 f3 h5 f2 h6 g4 e7 g3 a6 d4 a7 g2 e6 d3 Qg4 d2 Rh3 d1N Bd7 Nb2 e8B Nf6 e7 Nd5 Qf5 Kd4 Be2 f1Q Nd2 c5 Bd1 Nd3 Bb5 Qf4 Beh5 Qf3 e8Q Nd7 Qef8 Ke3 Bg4 Ne1 Bb2 Rg8 h8N Rb8 a8Q Rg6 h7 Qe8 Ka2 b3+ Ka3 Rbb6 Bg7 b2 Rh4 Rb7 Nh3 g1N Qa5 Ne2 Qd8 Rbb6 Qd6 Bb7 Bf8 b1N+ Kb2 Ba8 Ra3+ Nbc3 Qh2 Rbe6 Qh1 Re4 Nf1+ Kd3 Nh2 Kd2 Rb3 Re7 Ka3 Kc1 Nf7 Re3 Nh6 Qe5 Ng8 Qh8 Ne7 Rd3 Bh5 Rd2 Rf4 Rc2 Bg4 Nb4 Qh5 Be4 Qh6 Nbd5 Qf1 Rb2 Qf2 Bb1 Qf1 Rc2 Qf2 Ne4 Rd3 N4c3 Qf1 Qg2 Qf3 Qf1 Qe4 Qf3 Qf5
1q3r2/2PRQ1B1/K1Nn1br1/Q2Br2B/b4BP1/RpN1q1k1/NP1R4/1r3r2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 exf5 g5 hxg5 b4 d4 Nc6 dxc5 Nd4 Bf4 Kf7 Bc1 Nb5 axb5 Ke8 Kd2 Kf7 Kd3 d5 f4 h5 c4 e5 f6 Ke6 f5+ Kd7 f7 a5 f6 Ke6 b6 Kf5 g6 h4 c6 a4 g7 b3 c5 d4 Kc4 h3 Kb5 d3 c7 a3 b7 h2 b8N e4 c6 e3 Qh5+ Kf4 Nc3 a2 Be2 Nh6 g8B Bg7 f8B d2 f7 Bd7 c8R d1R Rc7 Bf6 Bg7 Re1 f8Q Nf7 Qe7 Kg3 Ra7 Nd6+ Ka6 Rf1 Qa5 Rh6 Bh5 e2 Bd5 e1R c7 Re6 Nc6 Re5 Bd2 Qh8 Rd1 a1Q Na2 Rg6 Bg5 Re8 Rd2 Qe1 B5h6 Rf8 Ne2+ Kf2 Rg1 h1R Nec3+ Kg3 Bg5 Qe3 Bf4+ Kh4 g4 Qg8 Nb8 Ba4 Nc6 Rb1 Rgg2 Rhd1 Rd4 Rf1 Rgd2 Qh8 Rb4 Qg8 Rb8 Qh8 Rd8 Kh3 Rd7 Kh4 Bfh6 Kg3 Bf4+ Kh3 Be4 Rd8 Qb4 Bb5+ Ka5 Qg8 Bd5 Ra8 Bg5 Kg3 Qc5 Qc8 Kb6 Qd8 Ra3 Ba4 B5h6 Rb8+ Ka5 Qc8 Bg5 Qb7 Qb4 Rf8 Bf4+ Kh4 Qc5 Qb8 Ka6 Kh3 Qa5 Kh4 Bfh6 Kg3 Bf4+
3nR3/2N1B1PB/5pKQ/2qqBQn1/1q1b2Q1/kNq2PNq/1QPR2b1/1r6 b - - 0 1 illegal: No possible last move, all moves rejected
R2B1q2/P4qp1/1QP2RP1/NB2Qbn1/r1r4Q/nk2nN2/3KB3/BrnR4 b - - 0 1 illegal: No proof kernel
N1N4r/3r3r/3b1n1B/2Qp2q1/1n1P4/QB2PRrP/1R1N1q1B/N1KQn2k b - - 0 1 legal: proof: g4 h5 gxh5 e5 c4 b5 cxb5 e4 b6 d6 a4 e3 b4 Qd7 a5 Rh7 a6 Ke7 b5 Bb7 axb7 Rh8 fxe3 Qd8 e4 Kd7 e5 Ke8 d4 Kd7 Kd2 Ke6 h6 Kf5 h3 Ke4 e3 g5 e6 c5 h7 a5 e7 f5 e8N a4 Ba3 g4 Rh2 d5 Kc2 f4 Nc7 g3 Kc1 f3 Ne2 Nc6 b8Q f2 b7 Kf3 b6 g2 Qc8 g1R b8Q c4 b7 c3 Qa7 c2 b8B Bd6 Qa5 Ra7 Na8 Nb4 Qcc5 Rgg7 Ra2 Rae7 Rb2 Nf6 Rg2 Rd7 Rg3+ Ke4 Rf3 Rg3 Qaa7 Qg8 Bc7 Qg5 Bb8 Nc6 Bb4 a3 Bc7 a2 Qa3 a1N Bb8 Re8 h8N Rh7 Ng6 Reh8 Bc7 Rd7 Ne7 Rh7 Bg2 f1Q Nc8 Qf2 Bf1 Rh8 Nf4 Rhh7 Bc4 Rh8 Ne2 Rdh7 Kd2 c1R Bb3 Rc3 Bb8 Nc2 Kc1 Rc4 Bc3 Ra4 Bb4 Ne1 Bc7 Ra7 Nd2+ Kd3 Bb8 Rad7 Bc7 Be7 Bf4 Bd6 Ba5 Nb4 Bc7 Qg7 Bh6 Qg5 Nf1+ Ke4 Bb8 Bf8 Bf4 Bd6 Be5 Rg1 Bh2 Rg3 Nd2+ Kd3 Nc3 Rg2 Nb5 Rg4 Qaa7 Rg3 Qdc2+ Ke2 Na3 Rde7 Ne4+ Kf1 Qd1 Kg2 Nd2 Reg7 Nc2 Kh1 Na1 Rd7 Qa3
Q2N1qB1/Pq1nPQRq/1pr1q3/1PN1k3/5r2/1Q3n1R/1QrBRb2/K3B3 b - - 0 1 illegal: No possible last move
1N2r2b/Q1kqq1QP/BR5P/Rp5Q/nP2NrRb/1b2K1b1/N4B1N/r7 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 Nc6 gxh5 Na5 a4 Nc4 a5 Nb6 axb6 Be6 Ra6 Bd7 Ra1 Bc8 Ke2 Kd7 d4 c5 b4 a5 f4 g5 h4 e5 h6 e4 d6 g4 h7 g3 h5 a4 h6 c4 b7 g2 b8N+ Ke8 d5 c3 d7+ Ke7 d6+ Kf6 Ke3 c2 Rh4 a3 Nf3 g1R Bh3 a2 Rg4 Rh1 Nh2 Ra4 Nc3 Qe7 d8Q Rf1 Qa5 Be6 d7 Bb3 d8N Ra3 Bd2 c1Q Qa7 Ra5 Qf3 Qd1 Be1 Qdd7 Nb7 Kf7 f6 Ke8 Nc5 Kd8 f7 Nf6 f5 Nd5+ Ke2 e3 f6 Ra3 N5e4 Nb6 Bf2 Na4 Qf5 Bg7 Qh5 Re8 f8Q Bh8 f7 Bf6 Qg7 Bh4 Kf3 e2 f8R e1B Rf6 Kc8 Rb6 Bg3 Rc1 a1B Ke3 Bb2 Rb1 Ra1 Na2 Bf6 Bg2 Bfh4 Rd1 Bc3 Rdd6 Bce5 Ra6 Bc3 Ra5 Kd8 Rb6 Kc8 Bg1 Rf4 Bf2 Be5 Nec3 Kd8 Bb7 Kc7 Ne4 Bef6 Qg8 Bh8 Qgg5 Qf8 Qg7 Qfe7 Ba6+
RR1n1r2/n1K2R1r/1N1QbR2/8/pqP1B1B1/P1Q1q1rk/1QP4B/1rN2n2 b - - 0 1 legal: proof: f4 g5 d4 c5 b3 e5 dxe5 c4 bxc4 Bh6 Be3 Bg7 Bc1 Bf8 fxg5 Bh6 g4 Nc6 h4 Nd4 g6 Nb5 g7 Nc7 g5 Na6 g6 Bg5 hxg5 Nb8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kc5 Kg4 Kd6 f5 e4+ Kg3 e6 a5 e5 h5 a3 b5 e7 a4 e8B f4 e6 f3 e7 b4 Be2 f2 Nc3 f1N Bg4 h4 Nd5 h3 Nb6 Nh6 g8Q b3 g7 b2 g6 Rh7 Qh8 b1R g8Q h2 g7 Nc6 Bg6 Na7 e8R Qe7+ Kc7 Qe3 Be4 d5 Ne2+ Kh4 Re7 d4 Rf7 Be6 Qb8 d3 g8R d2 Qc3 Rb3 Rg1 h1Q Rb1 Qhf3 Qb7 Rf8 Rg2 Qf5 Rf2 Qa5 Rf6 Qb5 Bb2 Qb4 Nc1 Kg3 Qe2 d1R Qed2 Kh4 Qd6 Re1 Qcd2 Rd1 Be5 Rd3 Bh2 Rb3 Re7 Nf7 Qc3 Nd8 Rb2 Rd2 Ref7 Rg2 Rg5 Rg3 Ra5 Nac6 Ra8 Na7 Ra2 Rb1 Rb2 Rf3 Qbd5 Rh3 Qdd4 Rg3 Rb3 Qh6 Qb2 Qe3 Qdc3 Qb5 Nc8 Qa5+ Rb6 Qb5 Rbb8 Qb4 Bgf3 Kh3 Nb6 Rfh8 Bh5 Rf8 Bg4+
rq1r2nq/1Q2QK2/1Pb3Q1/2Nk3p/q2B1R2/R4qbP/2PB1Q2/N2Br1R1 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 Nc6 f4 Ba6 g5 Na5 f6 Bc8 f5 Nb7 g6 Nd6 Ra6 Nf7 Ra4 Qb6 gxf7+ Kd8 Ra6 Kc7 Ra5 Kb8 Ra3 Qd8 Ra1 Kc7 Kf2 h5 Kg3 g5 b4 d5 b6+ Kc6 b5+ Kd7 c6+ Kd6 h3 a5 b7 e5 b8B+ Qc7 b6 a4 Qd3 e4 Be2 e3 Nd2 g4 Kh4 a3 Kg5 a2 Kg6 d4 Nb3 g3 Nc5 g2 Bd2 Ra6 Nf3 Rh7 Bd1 e2 Rg1 Be7 f8R e1R f7 Rh8 f6 Bd7 Qf5 d3 Nd4 Ra5 Ndb3 Ra8 Kg7 Be8 Qg4 Kd5 Qg6 Qb7 c7 Bd6 c8Q Bg3 Be5 Bc6 Bd4 Qa6 Qb7 Qa4 Rb1 Rd8 Na1 Ra8 Rb3 Rd8 Rh1 g1Q Ra3 Qh2 Rg1 Ra8 Re8 Rd8 f8Q Ra8 f7 Rd8 Nab3 a1Q Qfe7 Qc3 f8Q Qa1 Bb4 d2 Qf2 Qc3 Na1 Ra8 Bg4 d1Q Rf8 Qdf3 Rf4 Rd8 Bf6 Qe5 Kf7 Qb8 Bd4 Qhg2 Na6 Qc3 Be2 Qgf3 Bd1 Nf6 Rg4 Rd7 Qg8 Qc7 Qg6 Ra8 Rf4 Qb8 Be3 Rd8 Nc5 Ng8 Ba5 Qcd4 Bad2 Qh8 Bd4
Qb2Nr2/1q1qPNk1/8/2RqQ1BQ/1Q2nn1p/K2P3r/2q1Br1P/1R1R2N1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 d5 axb5 e5 fxe5 f4 c4 Qf6 cxd5 Bf5 gxf5 Qd8 e4 Kf7 b4 c5 f6 a5 d6 h5 e6+ Kg6 d7 f3 d3 f2+ Kd2 a4 Kc3 a3 Kb3 a2 e7 Nc6 e8R Bd6 f7 Nf6 f8Q Ne5 b6 Bb8 Be2 f1R b5 Rf2 b7 c4+ Kb4 c3 b6 c2 Bg5 c1Q Nd2 Qdc8 d8N Qd7 Nf7 Qc2 Rb1 a1Q Rc8 Qaa2 Rc5 Qad5 Qe8 Kh7 Qe6 Ng6 e5 Kg8 Ne4 Nf4 Qe7 g6 e6 Kg7 Qd6 Rf8 e7 h4 Qe6 Ra2 Qd6 Rf3 Qe5 Rb2+ Ka3 Rh3 Bf1 Qc1 Qh5 Rf2+ Rb2 Qc2 Rb1 Ba7 b8Q Q5b7 Qa8 Bb8 Be2 Qdd5 Ng3 Qbd7 Qc7 Ne4 b7 Nd2 Nf3 Q5e6 Nd8 Ba7 b8Q Qf7 Qb5 Bb8 Ne4 Qfe6 Qc4 Qa6+ Qa4 Qb7 Nf6 Qdd5 Qe5 Ne4 Qb3 Ng2 Bd2 g5 Rbe1 g4 Qb4 g3 Bg5 Nf4 Nf7 g2 Rb1 Nd2 Rc8 Qdd7 Rc7 g1Q Rc5 Qg2 Rhd1 Qh1 Ng1 Qhd5 Qed4 Ne4 Qdc3 Q7f5 Qe5 Qfd7 Ne8+
Nb6/3n1Bp1/Q1n2BR1/r2n2Pb/3Q1q2/P2PRN2/1nbN2kQ/1BKN2q1 b - - 0 1 illegal: No proof kernel
N3nn2/RQBnqp1b/2B5/1B3PP1/3RN3/1Pb1b1Qk/N1qr4/R3R1nK b - - 0 1 legal: proof: e4 d5 h4 b5 c4 g5 cxd5 b4 hxg5 b3 d6 Bg4 axb3 Na6 b4 Bc8 b5 Nb8 d4 Kd7 e5 Ke6 d5+ Kf5 d7 a5 Qd4 Ra6 Qd1 Rd6 exd6 Kg6 f4 Kf5 Kf2 e5 b6 h5 g3 c5 Kg2 e4 b3 a4 b7 a3 g6 c4 g7 e3 Nf3 Kg4 Nc3 a2 Ng5+ e2 Nge4 h4 Qe1 Qe7 d8N Nd7 b8Q Ngf6 g8B Nh7 Ne6 Bh6 Nc7 Nhf8 Na8 h3+ Kh2 Bb7 Bh7 Rg8 Qf2 e1N Qe3 Ba6 Qb7 Rh8 Rg1 Nf3+ Kh1 h2 Bd3 Bb5 Re1 Kh3 g4 Bc6 Qf2 Ng1 Be3 Bb5 Bb6 Bg5 Bc7 Rg8 Rad1 a1B Na2 c3 Rb1 Bc6 Bb5 c2 Bg6 Bg7 Ra1 c1Q Bh5 Bc3 f5 Be3 g5 Qc2 Bhe2 Rh8 Bf3 Rh4 Nc5 Rd4 Ne4 Rd1 Ba4 Rd2 Bb5 Nf6 d7 Ne8 d6 Bd5 d8R Bc4 d7 Be2 Nf6 Bd1 Bd5 Bh5 Ne4 Bg6 Rc8 Bh7 d8R Kg4 Kg2 h1N Bdc6 Ng3 Rd4 Nh5 Kh1 Nhf6 Rcd8 N6d7 Ra4 Qd1 Ra7 Kh3 Qf4 Qc2 Qe5 Nc5 Rd4 Ncd7 Qg3#
1nB1B3/1q2P1R1/2N1q2n/1pR1B1QQ/2R2QnK/1P2qN2/r1rP1B2/q1k3b1 b - - 0 1 legal: proof: f4 d5 a4 h5 c4 e5 fxe5 h4 cxd5 h3 a5 b6 a6 Bb7 axb7 Bc5 gxh3 Be7 h4 Ba3 h5 Bf8 Kf2 Kd7 Kg3 a5 h4 c5 e4 g5 d6 Kc6 h6 f5 b3 a4 d7 a3 e6 b5 h5 g4 h7 c4 e5 Kc5 e7 Kb4 e8B a2 h6 c3 e6 c2 Bb2 c1N Nf3 Qb6 d8Q f4+ Kh4 g3 Bh3 g2 Nc3 g1Q Qg5 Nd3 Ne2 Nf2 Be5 Ka3 Rc1 a1Q Ned4 Kb2 Rc4 Bc5 e7 Ra2 Bc8 Qe6 Nc6+ Bd4 Rh2 Ng4 Rg2 Qe3 Qe2 Kb1 Qf2 Rc2 Rc5 Kc1 Rg3 Nd7 b8B Qa6 Rg2 Qb7 Ba7 Nb8 Qg3 Qe1 Rc4 Bg1 Bf2 Qe3 Qh2 N8f6 Rc5 Rf8 h8Q Ng8 h7 N8h6 Qhf6 Rg8 h8R Rg6 Nfd4 f3 Qff4 Rf6 Rg8 Rg6 Rg7 Rf6 Bg3 f2 Nf3 f1Q Bf2 Rf8 Qhg3 Qd1 Qh5 Qde1 Qfg5 Rf4 Rh2 Ra4 Q3f4 Ra2 Rh3 Qd4 Rh2 Qee3 Rg2 Qa1 Rg3 Nf6 Rg4 Qed7 Qg3 Qe6 Rgc4 Nfg4 Q3f4
bR6/Nb2r3/p1B2BN1/1Pb4P/Pr1Q1n2/K1bQNBrR/4Rq2/2kR3q b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 h5 cxb5 Nf6 g4 Ng8 gxh5 Bd6 Nd2 Bc5 Nb1 Bf8 f4 Ke7 e4 Bb7 f5 Bd5 e6 Kd6 e5+ Kc5 f6 Nc6 Qa4 Nce7 fxe7 Bb7 Qd1 Bc8 Kd2 Kd4 e8Q f5 a4 g5 h4 d5 b4 c5 b6 a6 h6 f4 b7 c4 b8R f3 b5 g4 h7 f2 e7 g3 e6 g2 Bd3 f1Q Kc2 c3 Kb3 c2 Bb2+ Ke3 Be4 c1B Bf6 d4 Qg6 d3 e8R d2 e7 Bb2 Bf3 Qf2 Rh3 Ra7 Na3 Bb7 Ra2 Bc3 Ne2 g1R Nd4 Rg3 Nc6 Qd4 Red8 Qe4 e8B Ne7 h5 Rg8 h8N Nd5 Qf5 R8g4 Ng6 Bc5 Nc4+ Kd3 Bd7 Nf4 Ne3 Ba8 Qg1 d1B+ Rc2 Rb7 Na7 Be2 Ka2 Bf1 Re8 Bg2 Bc6 Re7 Rb2 Bb6 Ka3 Bc5+ Rb4 Kd2 Qa1 Qb1 Qd3+ Kc1 Red8 Bd2 Qad4 Bc3 Rd6 Qbc2 Re6 Qd1 Re5 Qh1 Re4 Bb6 Rb2 Bb7 Rd2 Ba8 Nd1 Rh4 Ree2 Bc5+ Qb4 Bb7 Ne3 Nd5 Bg4 Ba8 Bb7 Bf3 Bd7 Rd4 Bg4 Be4 Bf3 Nf4 Bd5 Bb6 Qc5 Rb4 Qcd4 Bc5 Bb7 Bf5 Bbe4 Bc8 Bc6 Bcb7 Rd1+
6Bb/Q1K1B2n/p1bB2Pk/N1N5/P1qn1n2/QNq5/2n1PBR1/Q2b1Rr1 b - - 0 1 legal: proof: g4 c5 d4 b5 b4 g5 bxc5 e5 dxe5 f5 c6 a6 c7 Nc6 gxf5 g4 h4 Na7 Be3 Rb8 Bc1 Rb6 Bg5 Rg6 Bc1 Rg5 hxg5 Kf7 Nd2 Ke7 Nb1 Ke8 Kd2 Kf7 Kc3 Kg7 Kd4 h5 Kd5 b4 f4 g3 a4 b3 c4 g2 g6 d6 c5 b2 f6+ Kh6 c6 h4 f7 h3 f5+ Kh5 e6 h2 e7 Nb5 e8Q Qd7 f6 Nh6 Be3 Rg8 Nd2 b1B Nc4 Rh8 Nf3 g1N Qe7 Nd4 Bg2 Bc2 Bf2 Bg7 f8B Nh3 f7 Ng8 Na5 Bb7 c8N Qc7 Nb6 Kh6 Rg1 h1Q Nd7 Ba8 Qe1 Bd1 Nd2 Qc8 Be4 Qf3 Rg2 Qc3 Nc5 Rh7 Qa7 Bb7 Be7 Bh8 Bb1 Nf4+ Ke4 Qc4 Ndb3 Qc7 Ba2 d5+ Ke3 Qc8 c7 Bc6 Qb4 Nf6 f8B+ Rg7 Bd6 Nh7 Bfe7 Rf7 Qa3 Rf5 Rb1 Rh5 Ra1 Rh1 Rb1 Rg1 Ra1 Qf5 c8Q Qfc2 Qf5 Q2c3+ Qd3 Bc2 Re1 Bd1 Rf1 Nb5 Kf3 d4+ Kg4 Be5 Kf5 Bh8 Qd2 d3 Qdb2 d2 Qa1 Qf3 Qf6 Nd4+ Ke5 Qg3 Bc7 Qgc3 Kd6 Bc2 Bb8 d1N Kc7 Ne3 Qe5 Bd1 Qf6 Nec2 Qe5 Qg3 Qf6 Nf3 Qa1 Qh3 Kd8 Qg3 Bbd6 Nfd4 Kc7 Qgd3 Nc1 Qcc3 Bg8 Qdc4 N1b3
2NN1K2/r1Nr4/B1B1p1r1/RqR3qn/1n4nk/1RQP4/1B1BPP1b/2Qr4 b - - 0 1 legal: proof: g4 d5 c4 b5 cxd5 g5 a4 f5 axb5 Be6 h3 Bf7 gxf5 g4 Ra3 g3 Ra2 Bh5 Ra1 Bg4 hxg4 Bg7 Ra2 Bh6 Ra1 Bf8 b4 Kf7 d6 Kf6 g5+ Ke5 d3 h5 Kd2 Kf4 Kc3+ Kg4 Kc4 c5 Kd5 a5 Ke6 a4 Kf7 h4 g6 h3 b6 a3 b5 h2 g7 c4 b7 c3 b6 a2 f6 g2 d7 c2 Nh3 g1Q Bd2 c1R Ng5 Ra5 Ne4 Qg3 Nbc3 Rc2 Nd5 Ra7 Bg2 Rc3 Nc7 Qe3 Nd6 Qg3 Bc6 Kh4 Nc8 Qg5 Qc1 Na6 b8Q Rh7 b7 Nb4 Qa8 Qb5 b8R Rc4 Rg1 h1R Rg5 Rg4 Rc5 Rd1 Qb7 Rg5 Qa6 Rg4 Qaa3 Rg5 Qac3 Rg6 Rb1 a1N Rb3 Nac2 Ra8 Rb7 Ra2 Ne3 Ra5 Ra7 Nb6 Qb8 d8N Ng4 Nc8 Qa8 Ke8 Qab8 f7 Qa8 Kd7 N8f6+ Ke6 Qab8 g8B Nh5+ Kd7 Bg7 Ke8 Be5 f8B Bh2 Bc4 e6 Bg7 Q8b6 Bd4 Rd7 Kf8 Qb7 Ra4 Qa5 Ba6 Qab5 Ra5 Q7b6 Rc4 Qg5 Rcc5 Qb7 Q3a1 Qb6 Bb2 Qb8 Qc3 Qb5 Qac1
1rr2bq1/B6n/1p5B/1Q2qP2/N1RQR1b1/k2B1Brr/1P2bN1P/2K1Q2R b - - 0 1 illegal: Other
1b4Bb/p1QK1P2/N3R1r1/1N4n1/n3RB2/P1n2b1R/Q1PRQ1qq/2n2N1k b - - 0 1 legal: proof: g4 e5 b4 c5 bxc5 b5 d4 g5 dxe5 f5 gxf5 g4 h4 Na6 Bb2 Rb8 Bc1 Rb6 Qd3 Rg6 Qd1 Rg5 hxg5 Qb6 Bf4 Qc7 Bc1 Qd8 Kd2 Ke7 Ke3 d5 Kd4 h5 e4 g3 f4 h4 a3 b4 f6+ Ke6 f7 h3 f5+ Ke7 c6 g2 c7 h2 g6 b3 e6 Kd6 g7 b2 e7 Rh6 e8R Nb4 f6 Bg4 c8Q Na2 Qe2 Rg6 Nf3 Nh6 g8Q Bg7 f8R Bh8 Nfd2 Nf7 Nc3 Qc7 e5+ Kc6 e6 b1N e7 Ng5 Rf7 Bf3 Nb5 Nbc3 Qb8 Qb7 Ke5 g1B Rb1 d4 Rb4 d3 Re4 Kc5 Qc7+ Qc6 Bg2 Na4 Nf1 d2 Bh3 d1N Bf4 Bf2 Be6 Ndc3 Rd8 Bg1 e8N Nc1 Re7 Bf2 Rd2 Bg3 Qd8 Qa8 Nec7 Kc6 Na6 Qb7 Rg1 h1Q Bc4 Qg2 Rh1 Qb8+ Kf5 Qc7 R7e6+ Qd6 Rh3 Bh2 Bd3 Kd5 Qc7 Qf8 f7 Qh6 Qf8 Qh4 Qb4 Qhf2 Qb1 Qfg1 Be3 Bd6 Bf4 Q1h2 Qc8 Bb8 Qc7 Nc5 Qb2 N5a4 Qa2+ Nb3 Qe1 Qgh1 Re3 Rg8 Rh5 Bd1 Rc6 Q1g1 Rc4 Nc1 Rhh3 Rg7 Kf6 Qgh1 Ke7 Bg4 Rg2 Bd1 Bh7 Rg6 Bg8 Q1g1 Ref3 Be2 Rc6+ Ke4 Kd7 Qf2 Rd3 Qfg3 Rd4+ Kf3 Rb6 Bd1 Rgd2 Be2 Nb4 Kg2 Na6 Kh1 Re6 Bf3 Rde4 Qg2 Qe2
1R2rNR1/1P3p1B/Q2rr3/Bb3P1K/1b3Qrn/k2Br1B1/QnP3R1/3n1N2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 d5 dxc5 d4 a4 Qd5 axb5 Nf6 exd5 Ng8 Ke2 Kd7 Kf3 a5 Kg4 e5 b4 g5 f4 e4 h4 d3 b6 a4 b7 e3 h6 a3 d6 Kc6+ d7 Kb5 h5 Ka4 h7 d2 h6 a2 b5 e2 c6 e1R b6 Bg7 c7 Nc6 b8R Ra6 b7 Ra5 Rh2 Nd4 Nh3 Re4 Rg2 Ra6 Qe2 d1N Kh5 g4 d8B g3 Nd2 Nb2 Ng5 Bd7 c8B Bf6 Ba5 Ne7 Ne6 Bb5 Nf8 Ng6 Bf5 Ka3 Qf3+ Re3 B1d3 Be7 Nf1 Rg8 h8Q Rae6 h7 Bb4 Qf6 Nh4 h8Q Ne2 Bh7 Nc3 f5 Nd1 Qf4 Rd6 Rb1 a1R Bd2 Rde6 Be1 Rg6 Qhg7 Re8 Qa6 Rge6 Qgd4 Rd6 Qd5 R8e6 Rd2 g2 Bg3 g1R Rg2 Ra2 Be1 Re8 Rg8 Rg4 Bg3 Nc3 Rd1 Ra1 Rd2 Rae1 Re2 Ncd1 Rg2 R3e6 Qdc4 R1e3 Qa2+
2Q4n/2p1KRPn/3rR1B1/b1PbN1rr/4B1rk/1N2bPR1/2Q4Q/4BR1r b - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 e5 gxf5 g4 d4 Bg7 dxe5 Qg5 hxg5 Bf8 Kd2 Ke7 Kc3 h5 Kc4 a5 Kd5 h4 e4 h3 c4 a4 b4 g3 g6 a3 b6 d6 c5 a2 e6 Kf6 e5+ Kg7 b5 g2 e7 h2 e8B Be7 b7 Rh7 b6 Rh4 f6+ Kf8 f7 Kg7 f8R Nh6 e6 Nd7 b8Q Rg4 b7 Nf7 Bd3 Kf6 Nf3 g1R g7 Rg5+ Ne5 R1g4 Kc6 d5 f3 d4 Rf1 h1R Be4 d3 Qc2 d2 Kd5 d1R+ Nd2 Bd6 e7 Ra6 Rg1 Rhh5 Rg3 Rdh1 Nb3 Rb6 Rb1 a1B Bd2 Bc3 Rf1 Ba5 Be1 Rc6 Qa7 Ra6 b8Q Bb7+ Kd4 Bd5 Qc8 Rc6 Qaa6 Rb6 Qae2 Ra6 Qh2 Rc6 Rg8 Nh8 Bg6 Nf8 e8R Nh7 Re7 Ra6 Rd7 Be7 Re8 Bd8 Rde7 Rd6 Rd7 Rf5 Re6+ Kg5 Qhg2 Kh4 Rf7 Bg5 Qgd2 Ba8+ Kc4 Be3 Kb5 Rh3 Qh2 Rfg5 Kc4 Rc6 Kd5 Bb7 Rd6 Ra6+ Ke6 Bd5+ Ke7 Rc6 Qhe2 Rh1 Re6 Rd6 Qh2+
1NbK2n1/P1RB4/P1r1R2R/1pB4b/1QN3n1/1n5k/1PnrN2b/1n2BQN1 b - - 0 1 illegal: No possible last move
2Nb1bn1/2QB4/nP2rbN1/3n1R1K/1B1pkN1B/1R6/P1qP3Q/NbR2n2 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Ra7 c3 Rb7 c4 Rb5 cxb5 Bb7 Qb3 Ba6 Qd1 Bc8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 f4+ Kd5 h4 c5 h6 g5 h7 e5 h5 b3 a6 d6 h6 b2 a7 e4 a8N e3 Rh3 e2 Kh5 e1N f6 c4 f7 g4 f5 c3 f6 g3 Na3 b1N Bb2 c2 Qc1 g2 Ne2 g1B Nf4+ Ke4 Rb3 d5 Nb6 Bg7 f8B Qc7 f7 Bf6 Bb4 Ng2 f8R Bf5 Nc8 Ne3 Bh3 Nc3 b6 Nf1 Rf7 Bd8 Rf8 Bc5 Rf6 Be6 Rf5 Bf8 Bg4 Na6 Bh3 Na4 Bf6 Nc3 Bh4 d4 Bg4 Bc4 Rab1 Nd5 Bh3 Bd3 Ra1 Nge7 Bg4 Rg8 h8N Rg6 h7 Re6 Nhg6 Ng8 h8Q Bfe7 Qh7 Bf6 Bh3 Qc3 Qc7 Qc6 Qd1 c1B Nc2 Ba3 Rc1 Qc4 Na1 Bb1 Qg4 Qc2 Qg3 Nc5 Qh2 Na6 Bc3 Bd6 Bb4 Bf8 Rg5 Rc6 Bd7 Re6 Rf5
3r2QQ/n1N2r1R/2pQrqP1/k6K/3P1r1b/1bPRQ3/1B2B3/bbN3BN b - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 b5 exd5 b4 h4 b3 axb3 Bf5 b4 Bh3 b5 Bc8 g4 Bd7 g6 Nf6 h5 Ng8 g5 Bc8 g7 Nd7 Rh2 Ne5 Rh1 Ng6 hxg6 Bh3 Bg2 Bf5 Bf1 Bc8 Kf2 Kd7 Kg3 a5 Kg4 e5 d4 f5+ Kh4 h5 b4 c6 d6 f4 b6 a4 b7 f3 b8B a3 b5 f2 c3 e4 b6 a2 b7 e3 Qd3 e2 Nh3 e1R Nd2 Ne7 g8Q Rh7 g7 Re6 Be2 f1R g6 Rf4+ Kg5 h4 Nf2 h3 Qh8 h2 g8Q Bh6+ Kh5 Rhf7 Bb2 Bg5 Qe3 Bh4 Rad1 a1B Nb3 Qf8 Nc1 Kd8 Rhe1 h1B d7 Be4 Rh1 Bb1 Bd6 Rb8 Rd3 Ra8 b8N Ba6 Na2 Bc4 Nc1 Bb3 Na6 Nc8 Nc7 Na7 Be5 Rg4 Bh2 Rgf4 Bg1 Rc8 Ne8 Qe7 Rh3 Qf6 Nh1 Ra8 Ng7+ Kc7 d8Q+ Kb7 Ne8 Ka6 Qd6 Ka5 Nc7 Rd8 Kh6 Bf2 Rh2 Qg7+ Kg5 Bg3 Rh7 Qf6+ Kh6 Bh4 Kh5
1q1N4/1p6/krnR4/NbK1PQ2/1R3B1P/1P2BQn1/B1n2b2/b2RbnQR b - - 0 1 illegal: No proof kernel
r6B/2rrNR1b/N2kNn2/QB1R4/pQq2nP1/3PP2Q/1n2p2Q/1Kb4B b - - 0 1 illegal: No proof kernel
3n2r1/2n1Q1r1/7K/N1B1bRp1/P1qb3P/PRQpQ3/br5R/Bk1N1BQ1 b - - 0 1 legal: proof: g4 c5 e4 h5 gxh5 f5 exf5 a5 d4 a4 dxc5 a3 bxa3 Qb6 a4 Qd8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 h4 d5 c4 b5 f4 e5+ f6 b4 f5 g6 h6 b3 h7 d4 a3 d3 c6 b2 c5 Ba6 c7 Nd7 c8Q Ra7 c6 Kd4 c7 e4 Nd2 Kc3 Nh3 b1R Nf2 e3 Nc4 e2 Be3 e1B Rh2 Bd6 Bc5 Nf8 Qe6 Ne7 c8Q Rg8 h8B Nd5 Na5 Kb2 Kh6 g5 f7+ Be5 f6 Nc7 Qe8 Nfe6 f8Q Rb7 f7 Qd5 Qfe7 B1c3 f8R Bcd4 Rf5 Bc4 Qe1 Nd8 Nd1+ Kc1 Raa2 Ra7 Rab2 Ba2 Rb3 Rb2 Qe3+ Kb1 Qg1 Bg3 Qee3 Qc4 Q8e7 Bd6 Qb7 Bg3 Qb4 Bge5 Qc3 Ne8 Qe6 Rag7 Qe7 Nc7 Qb4 Rf7 Rh3 Bf4 Qe8 Bf6 Rc3 Rb3 Q8e7 Bg3 Rh2 Bf4 Rcc2 Bb2 Bc3 Be5 B3d4 Rfg7 Qbd2 Bc1 Ba1 Bcb2 Qb4 Bbd4 Rc3 Rb2 Rb3 Nd5 Qbd2 Nc7 Qc3
B3r3/2n3rb/1b1b1RNQ/B3p1K1/pQN5/P1P1n1R1/2B1PQNk/1B1n1q2 b - - 0 1 legal: proof: c4 a5 g4 g5 d4 c5 dxc5 b5 h3 f5 gxf5 g4 h4 Qb6 Nc3 Qf6 Nb1 Qc3+ bxc3 Ra6 Kd2 Rg6 Ke1 Rg5 hxg5 Ba6 Nf3 Bb7 Ng1 Bc8 Kd2 Kf7 Ke3 d5 Kf4 h5 f6 Kg6 a3 e6 f7 g3 c6 a4 c7 g2 c5 h4 c6 Kh5 g6 b4 g7 d4 Nd2 b3 Ngf3 g1B Rh3 d3 Qe1 b2 Nc4 b1N Bg2 d2 Rg3 d1Q Be3 h3 Bb6 h2 Ba5 h1R Nh4 Ba6 c8Q Be7 f8N Nd2 c7 Rh2 Nfg6 Ne4 Qb7 Nh6 c8B Ng4 g8B Ne3 Bh7 Re8 Qb4 Qc1 Bh1 Rg2 f3 Bb5 Qf2 Na6 Bb7 Qe1 Ba8 Nc7 Rd1 Bc5 Rd6 Qf1 Ra6 Bh2 Rc6 Rg1 Ng2 Bb6 Rd6 Nf6 Be4 Nfg4 Bb1 Nd1 Bc2 e5+ Kf5 Nge3+ Kf6 Bc6 f4 Be4 f5 Bc5 Ne1 Bd3 Ba8 Be4 Re6 Bd6 Ng2 Bd3 Kg7 Be4 f6 Bd3 f7 Bf5 Rh3+ Kg4 Kf6 Bf4 f8Q Bg5+ Kg7 Bd8 Kh6 Be4 Rf3 Bd3 Rff6 Kh3 Kg5 Kh2 Bb1 Nb5 Qh8 Bb6 Rf3 Be4 Ref6 Nc7 Rg3 Bd5 N6f4 Bg8 Bhc2+ Bh7 Ng6 Be7 Kh4 Rc8 Ne1+ Rg2 Nf8 Be4 Rf3 Bd6 Qh6 Re8 Kh5 Kh1 Kh4 Rg5 Ng2 Bh7 Rg3 Rg7 Ng6 Kh2 Kg5#
R1r4R/2NBq1Rn/N2QP3/Bb3Nn1/1B2rbKQ/1NPnppP1/1k2b3/8 b - - 0 1 illegal: No proof kernel
2NR1bR1/nnR1B1pP/2B5/r1BK4/1Q1N2k1/3b3r/1b1PpP1N/3Nq1nQ b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kf3 e5 Ke4 a5 h4 c5 b4 c4 h6 c3 h5 a4 d6 c2 b6 a3 h7 a2 b5 Qf6 b7 Nc6 b8Q Ra4+ Kd5 e4 h6 e3 b6 e2 b7 Rg4 Ba3 c1B Nf3 Rg1 Nh2 Nd4 Bg2 Be7 Nc3 Nf3 Bc5 Qh4 f6 Bf8 f7 Ba3 Rc1 a1N Qf1 Qg4 Nd1 Nb3 Rc2 Bb2 Qe1 Kd8 d7 Na5 Qf4 Qg3 b8N Ba6 Qb4 Nb7 Nc6+ Kc7 d8N Kd7 Na7 Bd3 Ndc6 Rf1 Rc4 Ng1 Nd4 Qg4 Nc8 Ne7+ Ke5 Nc6+ Kd5 Na7 Rc1 Be7 f8B Bd6 Be7 Qg6 Bg5 Bf8 Bge7 Qa6 Bf3 Qa1 Rc4 Ke8 Rc2 Kf7 Rc3 Kg6 Bg2 Rg8 h8R Kh5 h7 Qc1 Ra3 Qb1 Ra6 Qa1 Rd6 Qc1 Rd8 Qa1 Nhf3+ Kg4 Rh6 Qb1 Rc6 Qa1 Rc7 Qc1 Nc3 Qa1 Qb1 Rc1 Bh1 Rc2 Qf1 Qe1 Nd1 Rc3 Bg2 Nh3 Qh1 Ng1 Ng5 Ba6 Be4 Rh3 Ngf3 Bd3 Bh4 Bd6 Be7 Rf8 Rg8 Rf5+ Ke6 Rg5 Bc6 Rf5 Bh4 Bf8 Bhe7 Rf6+ Kd5 Re6 Bb5 Ra6 Bc6 Ra5 Nh2+
1N2QNbB/bq2ppn1/3r4/1nB1kQ1P/1bB2R2/NrPR4/P6Q/1N1nK3 b - - 0 1 illegal: No proof kernel
1n2r2b/2rP1bB1/2P1QR1Q/N2KRQp1/PBnQ2B1/1qpRN3/3kb1n1/8 b - - 0 1 illegal: No possible last move
Q1r3Qk/3Pb3/B1pQ3n/1nNr4/KpbN1P1R/1rP3n1/4RqNB/QR6 b - - 0 1 legal: proof: g4 a5 h4 g5 hxg5 d5 b4 f5 gxf5 d4 bxa5 d3 exd3 Nh6 d4 Ng8 d5 Qd7 Bd3 Qd6 Bf1 Qd8 d4 Kf7 Kd2 Kg7 Kc3 e5 Kb3 b5 a4 h5 f6+ Kh7 d6 c6 f7 h4 a6 h3 a5 e4 g6+ Kg7 d5 e3 c3 b4 d7 h2 d6 e2 a7 e1N a6 Qa5 d8R Rh7 Nd2 Bb7 Ne4 Qb6 Nf3 Nd3 Rb1 Nf4 Nh4 Ne2 Ka4 Rh5 Ng2 Re5 Re8 Qd8 Nc5 Nh6 Bf4 Be7 f8N Kg8 g7 Qb6 Nfe6+ Kh7 f3 Rd5 Nd4 Bc8 Bg3 Be6 f4 Bg8 Bf2 Ng3 Bg1 Nd7 Qd2 Nf6 d7 Rc8 a8Q Nfe4 a7 Nd6 Ba6 Nb5 Qd1 Rf5 Qb8 Bc4 a8Q Rd5 Qc7 Bf8 Re2 Be7 Qd6 Kg8 Rbb2 Kh7 Qa1 Kg8 Bf2 Qa7 Rhb1 h1R Bg1 Qb6 Bh2 Rc1 Qdb8 Rc2 Ra2 Rb2 Qd6 Rb3 Rad2 Qa7 Rd3 Nh5 Rh3 Ng3 Rh4 Qb6 Nb7 Kh7 Nc2 Qf2 Nd4 Kg8 Nc5 Kh7 Qdb8 Kg6 g8Q+ Kf6 Qe8 Kg7 Qd6 Kh7 Qf7+ Kh8 Qg8+
K7/Q2P1nNQ/1pR2rbB/Pr2Br2/1qp4N/b7/n2BQkP1/2R1n1NB b - - 0 1 illegal: Other
r1q2BB1/2bP1p2/5bR1/1p3n1K/k2Q1r1N/NP1P2Bn/1RrQQ1Qb/N7 b - - 0 1 illegal: No possible last move
Bn1K1NBb/2P5/1P4rR/qR1brb1Q/3N4/1Pp5/kB2n1Rp/1N1n2NQ b - - 0 1 illegal: No proof kernel
BN1b4/QP2PpK1/QB2kNb1/Bq6/1Prb1N2/nrN4R/R1nr2p1/5R2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 Kf4 a5 Kf5 g5 h4 c4 e4 a4 b4 c3 d4 c2 e6+ Kd6 b6 g4 e5+ Ke7 d6+ Ke8 d5 a3 h6 g3 h5 a2 d7+ Ke7 h7 Qe8 d8N Ra5 h6 Rb5 Qd3 Bd7 Bg2 Rc5 Ne2 Bc6 Nbc3 Bb7 Be3 c1B Qa6 Rc4 Nf4 Qb5 d6+ Ke8 d7+ Ke7 Rf1 Bb2 Be4 Bc8 Ba8 g2 b7 Nf6 Bb6 Ne4 Ba5 Rg8 h8Q Nd2 h7 Nb1 Qg7 Nc6 h8R Na3 Rh3 Rh8 Qa7 Rh7 Qg6 Nd4+ Kg5 Rg7 Kh6 Ndc2 Qd3 Rg3+ Kh7 Bg7 Nc6+ Kf8 d8B Bf6 Bdc7 Bd8 Nb8 Ke7 Bcb6 Bd7 Qg6 Rd3 Kg7 Rd2 Qd3 Bc6 Qg6 Be4 Qh6 Ke8 e7 Bg6 Na6 Kd7 e6+ Kd6 e8N+ Ke5 e7 Kf5 Rab1 a1R Nb8 Ke5 Rbd1 Rb1 Nf6 Ba1 Rc1 Rb3 Rb1 Bb2 Ra1 Kf5 Ra2 Ke5 Ncd5 Bd4 Nc3 Kf5 Qh8 Ke5 Qe8 Kd6 Qc6+ Ke5 Bc5 Kf5 Qca6 Ke5 Bcb6 Kd6 Nfd5 Ke6 Nf4+
B1R1KnQN/1p2b1qQ/2rQ3P/2B1n3/2PR2P1/Nr2Bp2/3r3R/1bn1k1B1 b - - 0 1 illegal: Other
b1Q3r1/Pr3B1p/1nbpQbR1/3R2BQ/5N1N/1P2Q3/2P1N2k/1K1Rqn1n b - - 0 1 illegal: No proof kernel
2r1R3/Pp3bRN/4b1np/1N1PBR2/kbP3B1/QR4nK/1n1NQq2/5Qr1 b - - 0 1 illegal: No possible last move, all moves rejected
2b3Rb/QQ1bR2Q/1B5N/n1Kp2Pk/1N1PR3/2pBrR1q/Pn2r3/2N4q b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 b3 cxb3 Nc6 b4 Nb8 b5 Ra6 Qa4 Ra7 Qd1 Ra8 Ke2 Kf7 Ke3 c5 g4 e5 f4 h5 f6 Kg6 a6 d5 f5+ Kf7 b6 c4 b7 c3 a7 h4 g6+ Ke8 g5 h3 f7+ Ke7 f6+ Ke6 g7 Kf5 Na3 Kg6 Bd3+ e4 Kd4 h2 Ne2 Nd7 b8Q Ne7 g8N Bg7 f8R Nc5 Nc2 Rh3 Qb7 Qd7 Nb4 Na4 Qc2 Bh8 Re1 h1B Nh6 Bf3 Rg8+ Kh5 Ba3 e3 Nc1 Rb8 a8Q e2 Qaa7 Nb2 Kc5 Bg4 f7 Nc6 f8R Na5 Rf7 Ra8 Re7 Re3 Rf1 e1Q Rf3 Qf1 Be4 Qd8 d4 Nc6 Na6 Qd7 Re5 Re2 Bb4 Rg2 Nd3 Qh1 Ba5 Qf5 Rg1 Be6 Nc1 Re8 Nb4 Bc8 Bb6 Na5 Re1 Bh3 Ree3 Qg4 Bh7 Re2 Qf5 Qg3 Qfd7 Bg4 Bd3 Qgh3 Qh7 Bgd7 Re6 Rf8 R6e5 Rf6 Re7 Re6 Re4 Re5 Rg4 R5e3 Rge4
n3rq2/Qn1BB3/1R2N1NR/pp4Q1/1B6/P1Q2bP1/KbrBP3/R2qb1k1 b - - 0 1 legal: proof: b4 e5 d4 f5 dxe5 c5 bxc5 Qh4 g3 g5 g4 Qg3 gxf5 g4 Bf4 Qa3 Bc1 g3 Qd5 g2 Qd1 Qg3 hxg3 Ke7 Bf4 Kf7 Bc1 Ke8 Kd2 Kf7 Kc3 b5 Kb2 h5 f4 d5 c4 a5 e6+ Kf6 c6 h4 c7 d4 a3 h3 c5 d3 e7 d2 e8R h2 c6 Rh3 Nc3 Ne7 Ka2 Rh4 Nh3 g1B Na4 Bd7 c8Q Ng8 c7 Nc6 Qd8+ Nge7 c8Q Bf2 Nc5 Bg7 Ne6 Be1 Qb8 Rh7 Qb3 d1Q Qa7 Bc8 Qdd5 Bb7 Rb8 Nd8 Bd2 Nc8 Qc2 Bc6 Rb6 Nb7 Qdc5 Bf3 Q2c3+ Kf7 f6 Kg6 f5+ Kh5 f7 Kg4 f8B Bd4 f6 Rc7 Qc1 Bb2 f7 Rc6 Qe7 Rc2 Nhf4 Rb8 Ng6 Ra8 Rg1 h1Q Qc5 Qh2 Be7 Qh8 Rh1 Qf8 Qc3 Rb8 Rh6 Ra8 Rd6 Nb6 Rc6 Rd8 Bb4 Na8 Rb6 Re8 Bg2 Qg8 f8B Qf7 Bh1 Qf4 Bfe7 Qf8 Bh4 Kh3 Bhe7+ Bh5 Bc6 Kh2 Bd7 Kg1 Qe5 Bf3 Qg5 Rc5 Qc4 Rc7 Qd3 Rc2 Qc3
N2r1rr1/6k1/bR2RqpQ/QPB5/B3P2N/2q3N1/Pn1pR1B1/2bNn2K b - - 0 1 illegal: No proof kernel
2B3kQ/K1n5/R1qq2pb/p1R4N/2P2Prb/2B1NQ2/Pr2n1BN/1r1R1N2 b - - 0 1 legal: proof: c4 f5 b4 h5 e4 c5 exf5 b6 bxc5 h4 d4 h3 d5 Nc6 gxh3 Ba6 h4 Bb7 h5 Nb8 Bd2 Nf6 Bc1 Bc6 dxc6 Ng8 Kd2 Kf7 Kd3 d5 Kd4 a5 h4 b5 f4 e6 f6 g6 h6 b4 h7 b3 c7 b2 c8N Nh6 c6 Bg7 Kc5 d4 h5 e5 c7 d3 Kb6 e4 Nf3 d2 Nd6+ Kf8 f7 e3 Nh2 e2 Bg2 e1B Nf5 Na6 Ne3 Qg5 c8B Nf5 h6 Bg3 Qf3 d1R Nd2 b1Q+ Bb2 Nc7 Ndf1 Rb8+ Ka7 Nd4 Bc3 Qe4 Rg1 Re1 Rd1 Ne2 Rd5 Qh4 Rc5 Qd8 Rh1 Qc6 Rg1 Rg8 h8R Rb2 h7 Qdd6 Rh1 Reb1 Rg1 Ke7 f8N Kf7 Nd7 Bh4 Nf6 Bh6 Nh5 Re8 Rg8 Re5 h8Q Rg5 Re8 Rg4 Ree5 Qb5 Rc6 Qa4 Rec5 Qb5 Ra6 Qbc6 Nfg3 Rb3 Rd1 R3b2 Qf6+ Kg8 Ngf1 Rc2 Qd4 Rcb2 Qh8+
5B2/4Q1rq/1rQR1P2/QB3n2/nbK5/pNRp1Q1P/kb1P3B/R2Nnq2 b - - 0 1 legal: proof: e4 b5 b4 f5 exf5 h5 g4 d6 gxh5 Qd7 c4 Rh7 a4 Ba6 c5 Bb7 c6 Rh6 cxb7 Nc6 axb5 Nd8 b6 Nc6 b5 Rh8 Qa4 Qd8 Qd1 Nb8 Ke2 Kd7 Kd3 e5 f4 c5 f6 Ke6 h6 Kd5 h3 a5 h7 g5 f7 c4+ Kc3 e4 f5 g4 f6 a4 Ba3 g3 Qf3 g2 Bb4 a3 Rh2 Nh6 Rh1 Na6 b8Q Rg8 h8Q Nc5 b7 Qe7 b6 Ra6 Ne2 g1Q Qd8 Nf5 b8B Qa7 b7 Na4+ Kc2 c3 Kb3 c2 Nd4 c1B Bb5 Rg5 Qa5 Bb2 Bc5 Qf2 Rc1 Qf1 Bc7 Rg4 b8R Rb6 Rd8 Be7 f8Q Rg6 Qfc3 e3 Qh5 e2 Qg4 e1N Qgf3+ Ke5 Bb8 Qc7 Qc2 d5 Nc3 Bd6 Bb4 Qh7 Nd1 Rg8 Qc6 Rg7 Qh5 Ke4 Rc3 Be7 Bh2 Bd6 Rc4 Kd3 Bc5 Be7 Kb4 Bd6 Nb3 d4 Qhf3+ Ne3 Nc3 Kc2 Qfe8 d3 Nd1+ Nc3 Qf7 Nf5 Qfa7 Bg3 Bf8 Bd6+ Rc5 Be7 Kc4 Bd6 Qe7 Na4 Kd5+ Bc3 Ra2+ Kb1 Rd7 Bde5 Rd6 Bb4 Rc4 Ba1 Rc3 Bb2 Kc4 Ba1 Rac2 Bb2 Rc1+ Ka2 Ra1+
B2bqQ1n/3N2r1/R1RRp1P1/1B3p1Q/3P1P1N/qk6/1n1N1BK1/2n1b1Nr b - - 0 1 legal: proof: c4 g5 h4 d5 hxg5 b5 cxd5 b4 d4 b3 axb3 Na6 b4 Bf5 b5 Bd3 exd3 Nb8 f4 Kd7 Kf2 Kd6 g4 h5 b4 f5 b6 c5 g6 a5 g7 a4 b7 a3 g5 h4 g6 h3 b5 h2 b6 a2 Be3 c4 Kg2 c3 Bf2 c2 Nd2 c1B Qh5 Nc6 b8N Ne5 b7 Nc4 Nc6 Nh6 g8B Qe8 b8N Nb2 Nd7 Nf7 Nce5 Ra7 Nef3 Bg7 Nh4 Bf6 Be2 Rh7 Bf3 Nh8 Bf7 e6 Be4 Qc8 Be8 Bd8 Bf3 Qc3 Be4 Qa3 Bf3 Kc7 Be4 Kb7 d6+ Ka6 Ba8 Kb5 d5 Ka4 d4 Rb7 Ndf3 Be3 Nd2 Kb4 Rc1 a1N Rc6 Nb3 Ne5 Nc5 d7 Nb3 d6 Nc1 Ra6 Bg5 d8Q Rbg7 Qc8 Bd8 Bb5 Rh6 d7 Rhh7 Bg3 Bf2 Qb8 Be1 Bf2 Rh6 Qd6+ Kc3 Qf8 Rhh7 Nb1+ Kb3 Rc6 Bda5 d8R Rh6 Rdd6 Bd8 Nd7 Rhh7 Nh3 Rh6 Rf1 Rhh7 Ng1 h1Q+ Kg3 Qd5 Kh2 Qe5 Kg2 Qf6 Ra6 Qe7 Rac6 Qe8 Ra6 Bd2 Re1 Bc3 Re2 Rh6 Rc2 Be1 Rcc6 Qa4 Qg5 Qa3 Nhf3 Rh4 Qh5 Rh3 Nh4 Rh1 Nd2+
3Q4/1B2N3/1k1P1qQQ/b1RPR1r1/P2Knqn1/B1NQ2Nb/b1r2p1p/5R2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 Kf2 Kd7 Ke3 f5 a4 h5 g4 b5 d4 c5 d6 Kc6 d5+ Kb7 a6+ Kb6 a7 c4 e6 b4 g6 b3 g5 c3 e7 b2 e8R c2 g7 h4 g6 h3 Nc3 b1B Qd3 f4+ Kd4 f3 e4 f2 e5 h2 e6 Qg5 e7 Qh5 Ba3 c1Q Nge2 Bh3 Ng3 Nh6 g8Q Na6 g7 Qhg5 Qgh7 Ba2 g8N Ng4 Qh6 Rc8 a8Q Nc5 Rg1 Rc7 Qd8 Ne4 Be2 Qcd2 Rgf1 Qdf4 Rac1 Rh7 Rc2 Rg7 Rcc1 Qh4 Rc2 Rg5 Rcc1 Ne5 Bg4 Qf6 Bc8 Bg7 Bb7 Bh8 Nd1 Bg7 Rc5 Qhf4 Nc3 Bh8 Rf8 Bg7 e8Q Bh8 Qeg6 Bg7 Re8 Ng4+ Re5 Bh8 Qb8 Rc8 Ne7 Rc6 Nb1 Rc7 Ra5 Rc2 Nc3 Qf3 Nd1 Rd2 Rc5 Q6f5 Qbf8 Rc2 Qa8 Bf6 Qd8+ Ka7 Nc3 Q3f4 Qdf8 Qe6 Ng8 Bd8 Qhg7 Qef6 Ne7 Ba5 Q7h6 Kb6 Qd8+
N3krBb/Rr6/1B1p2pq/8/q1NN2nP/RPnb1b2/1PRB1Q2/Q3N1K1 b - - 0 1 legal: proof: f4 b5 d4 e5 fxe5 h5 g4 c5 dxc5 b4 gxh5 b3 axb3 Qc7 Qd5 Qb6 Qd1 Qd8 Kf2 a5 c4 f5 e4 d6 h4 a4 h6 a3 c6 g6 c5 f4 c7 a2 e6 f3 h7 Na6 e5 Qd7 c6 Qf7 e7 Nc5 Nd2 Nb7 Bc4 Nf6 Ne2 Qe6 Kg1 Nd7 Nd4 Qf5 Bg8 Qc2 Qf1 Nf6 Qf2 Bh3 c8N Bd7 c7 Qc6 Nb6 Bf5 Nbc4 Rd8 c8R Be4 Rh2 Qc5 Ra8 Ng4 Ra3 Bg7 Ra7 Rb8 Ra3 Kd7 e8N Kd8 e6 Qh5 Nc7 Nc5 Na8 Ke8 e7 Na4 Ne5 Bb7 Nd3 Nc3 Nc4 Qh6 Ne1 Bd5 Bd2 Rb7 Be6 Rg8 h8B Rf8 Bg8 Be5 Bf6 Be4 Bfg5 Bh8 Bge3 Bc6 Ndc2 Bd5 Bb6 Be4 Nd4 Bd3 Rb1 a1Q Ra7 Qa6 Ra1 Qa4 Ra3 Be4 Qe2 Bd3 Qd1 Be2 Qa1 f2+ Kh1 f1B Kg1 Bf3 Re2 Kd7 Rh2 Rd8 Rf2 Bd3 e8Q+ Kc8 Qe7 Rf8 Qf6 Kd7 Rg2 Ke8 Rh2 Bfe2 Qf2 Bf3 Be3 Nd5 Qf1 Rd7 Rc2 Rb7 Qf2 Nc3 Bd2
1qRN1krN/NQnB4/2P1BB1b/2q3R1/1PbPK3/p5q1/2n2R1p/2R2r1Q b - - 0 1 illegal: No proof kernel
3B4/kb2R1Kb/r1PN1pQR/1q1r1P2/Qp3r2/N3P3/Q1BB1q1n/n2R1R2 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 h5 gxh5 e5 dxe5 c4 a5 c3 bxc3 Ke7 c4 Ke8 c5 Bd6 Ra2 Bc7 Ra1 Bb6 axb6 Qg5 Bg2 Qh4 Bf1 Qd8 Kd2 g5 Ke3 a5 Kd4 d5 f4 Kd7 h4 Kc6 c4 Kb7 h6 g4 c6+ Ka6 e6 a4 Ke5 b4 f5 a3 e3 g3 b7 d4 c5+ d3 e7 g2 e8R a2 h7 Bd7 c7 Ba4 c8Q Ra7 c6 Nh6 h5 Qd5+ Kf6 Nd7+ Kg7 f6 Na3 Qb5 Bd2 Bb3 Qa8 Nc5 Nh3 g1Q+ Ng5 Bg8 Re7 Ng4 b8B Nb3 h6 Nh2 Bc7 Qf2 Rc1 a1R Nf7 Rb1 Nd6 Na1 Bd8 Rb3 Qg4 Rc3 Rb1 Rc4 Rd1 Re4 Qg6 Rf4 Be1 d2 Bd3 Rh4 Rf1 Rf4 Rc7 Kb6 Bc2 Ra6 Re7+ Kc5 Rb1 d1B Bd2 Be2 Rbd1 Bec4 Qg1 Bce6 Qg6 Bc8 Qa7+ Rb6 Qa5 Bb7 Qa4 Ra6 Ba5 Be6 Bd8 Re8 h8R Bg8 h7 Rf8 Rc7 Kb6 Rd7+ Ka7 Re7 Bd5 Rg8 Bb3 h8Q Re8 Rf8 Bg8 Qhh6 Bh7 Rh8 Rf8 Qf7 Re8 Qhg6 Rf8 Qa2 Re8 Rd7 Re5 Rc7 Rd5 Re7 Bg8 Rh3 Bh7 Rh6
2n1bRK1/bqqkR3/1Bp1rr2/PR4P1/2B1Q1PB/3N1B2/N5p1/Nq2nQ2 b - - 0 1 illegal: No possible last move, all moves rejected
4N1R1/4K2N/P1Bp1B2/Q1rrnpqP/R2PbBq1/3Q1n2/4Q1bk/rNB5 b - - 0 1 legal: proof: g4 b5 f4 a5 b4 e5 bxa5 h5 gxh5 b4 fxe5 b3 c3 Bb4 cxb4 Qe7 Ba3 Qf6 Bc1 Qd8 Kf2 Ke7 Ke3 Ke6 Ke4 c5 d4 g5 a4 c4 h4 g4 a6 b2 h6 c3 h7 f6 h5 c2 b5 g3 b6 g2 a7 Qe7 b7 Qf7 a5 Qg7 Nf3 g1Q Qd3 Q1g2 Rg1 Q7g5 Ra4 Q2g3 Bg2 Nc6 b8B Bb7 e3 Ke7 Kd5 f5 e6 Kf6 e7 Nh6 e8Q Nf7 e4 Q3g4 Bbf4 Nfe5 Kd6 Rd8 a8Q Rg8 Ne1 Nf3 h8B+ Rg7 a6 Nce5 Qa7 Rc8 Qb6 Rc5 Qa5 Rd5+ Kc7 d6+ Kd8 Nd2 Nf3 Bc6 Nh4 Ndf3 Ng6 Bb7 Nf8 Ba8 Bce3 c1R Qeb5 Rc3 Bc1 Ra3 Qe2 Ra1 Qbd3 Bb7 Nc3 b1B Nh7+ Ke6+ Ke8 Rc7 Bf6 Rcc5 Kd8 Bc2 Nb1 Kf7 Be7 Kg7 Bf6+ Kh6 Ke8 Ng6 e5 Ba8 e6 Nge5 Qde3 Be4 e7 Nd2 Qac3 Bf3 Na3 Qg3 Bf1 Bg2 Qb4 Ndf3 Qee1 Bc6+ Kd8 Bb5 e8N Bd3 Nc2 Be4 Bc4 Bh1 Q1c3 Qg2 Bg3 Qf4 Ke7 Rc6 Bb5 Rcc5 Bc6 Qh3 Bh2 Qh4 Rg4 Bg2 Rg8 Qg4 Qe2 Qe3 Na3 Qd2 Nf8 Qdf4 Nb1 Qe3 Bg7+ Kg5 Nh7+ Kh4 Bf6+ Kh3 Qcd3 Qh6 Qa5 Qhg5 Bg1 Kg3 Bge3 Kh2 Bf4+
Nn4b1/1B6/pk2P2B/1nRp1rP1/RK3N1q/RQ1Pb2n/qB1rQN2/R7 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qe7 c4 Qf6 c5 Qd8 e4 f5 g4 h5 c4 f4 d3 d6 Kd2 Kd7 Kc3 Kc7 c6 f3 e6 h4 e5 h3 c5 h2 e7 f2 g6 a6 g7 Nh6 g8Q Rh7 Nd2 Bd7 e8N+ Kc8 b6 Be7 c7 Kb7 c8R Qc7 Nh3 Bf6 Bb2 Kc6 b7 Ra7 Ra4 Bd8 Kb4 Nf7 Qe2 Be6 Nf4 Bg5 Ne4 Rh3 Rg1 h1N Bg2 Rh2 Rga1 f1Q Nf2+ Bd5 R4a3 Qb1 Rd8 Qc8 Nc7 Qa2 Rf8 Qd8 Re8 Nd7 b8B Kb7 c6+ Kb6 Rf8 Bh6 Bf3 Qh4 Rd8 Ng3 Rf8 Ng5 Rf5 Bf7 e6 Rg2 Rfa5 Nh3 R5a4 Ne4 Qh8 Rb7 Qc3 Bg8 Qb3 Nc3 Be4 Nb5 g5 Bf8 Bg7 Be7 Bh6 Ra7 Ne8 Bf6 c7 Bd4 c8R Be3 Bb7 d5 Be5 Nb8 Rc5 Ra8 Bb2 Ra7 Bc6 Rf7 Bb7 Rf5 Nc7 Rg1 Ba8 Rd1 Bb7 Rd2 Na8+
1RQq1bB1/1QR1qpR1/1PpnNkrb/2B4B/1P4b1/5PKn/2rQ3R/7N b - - 0 1 legal: proof: d4 b5 g4 d5 a4 h5 gxh5 e5 dxe5 d4 axb5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 b4 Ke7 e4 a5 h4 g5 b6 a4 f3 c6 Kf2 a3 e6 g4 e5 a2 h6 Qe8 d6+ Kd8 d7 Ke7 d8R Rh7 h5 Nd7 Na3 Ra7 Nb5 Ndf6 Bd3 Rd7 Nd4 Rd6 Nh3 Rh8 h7 Qd7 h6 Qa7 Be3 Qb7 Rg1 Bd7 Rb8 g3+ Kg2 Ne4 Nf2 Ng5 Nh1 Rd5 Bc2 Rc5 Qd2 Nf6 Bg6 Rg8 h8R Nd5 Bh7 Rg6 Bg8 Bc8 Rh7 Ke8 e7 Kd7 e8B+ Ke7 e6 Rg7 Bd7 Rc2 Rh8 Kf6 e7 Qa7 e8Q Ne7 Bg4 Nf5 Rh7 Be6 Qd7 Qc7 Rh8 Qc8 Rae1 a1Q Qb7 Nd6 Bf2 Bf5 Re7 Qe1 Rc7 Qe7 Be3 Qcd8 Rh7 Rg6 Rg7 Rc1 h7 Bd7 Re1 Rc2 Re2 Rh6 Bg1 Nh3 Bh5 Be6 Nf5 Bd7 Bc5 Bc8 Nd4 Bg4 Kf1 g2+ Ke1 g1B Kf1 Nb5 Kg2 Be3 Kg3 Nd6 Rg2 Rg6 Rh2 Bh6 h8Q Qde8 Qh7 Rg5 Qhd3 Q8d7 Qc8 Qdd8 Qda6 Rg6 Ne6 Nc4 Qa8 Nd6 Qab7
1K1R4/R3Bp2/p2B4/r1bB1NPk/q1NP2n1/1Nq2Rrn/1Q2b1P1/N3Q1n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 c5 Ke3 h5 Kf4 c4 e4 c3 d4 c2 b4 h4 b6 h3 b5 h2 b7 Na6 b8Q Bb4 d6 Rh7 b6 Bh3 e6 Kf8 Ke5 Kg7 b7 Kg6 d7 Be1 Kd6 Nc7 e7 Qe8 d8R Na6 e5 Bd7 e6 Rg7 Ne2 Rh7 Ba3 c1N Nd2 Rh3 Nb3 Ba5 Qe1 Bb6 Bb4 Na2 Nec1 Rg3 Bc4 Nc3 Bd5 Nf6 Rf1 h1Q Rf3 Nc7 Ra3 Qf1 Na1 Ne2 Ncb3 Bb5 Ra5 Ng4 Ba3 Qh8 e8N Qh3 e7 Ne6 Ng7 N6f4 e8N Ng1 Nf5 Bc5+ Kc7 Qc4 Ned6 Qa4 Nc4 Kh5 Kc8 Bb6 Be7 Bc5 Kc7 Ba6 Qc8 Bb5 b8B Ba6 Qb7 Bb5 Ne5 Be2 Nc4 Qb5 Re3 Rf3 Nbd2 Qa4 Qb2 Qg3 Rc3 Nfh3+ Kc8 Rd3 Ndb3 Qe3 Kc7 Qc1 Kb7 Rg3 Rf3 Qc3 Be5 Rb8+ Kc7 Rb5 Ra6 Ra5 B5d6 Ba3 Kb8 Bc5 Rb6 a6 Rb7 Qe3 Rbd7 Qc3 Ra7
K5Qq/n1r1P2b/B1B4Q/1N1BR2N/q3R1pb/PpBR3k/4Pbn1/5r1N b - - 0 1 illegal: No proof kernel
b1nRB1Rq/bQ2P1NR/Pq6/rk1PN3/8/2B1Q1K1/pB1rq1p1/2n2B1Q b - - 0 1 illegal: No proof kernel
3bN2R/1bRqp1P1/2nk2R1/3rrn2/qpQR2Q1/PB3r2/P2K3N/1NQ1B3 b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 a3 bxa3 Ra7 Rh6 Ra4 Rh1 Ra8 f4 Kd7 g4 b5 d4 c5 d6 h5 g6 h4 g7 c4 f6 c3 f7 c2 f5 h3 g5 b4 g6 h2 f6 Qb6 d5 Qb5 Bc4 Qa5 Bd2 c1R Bb3 Qa4 Nf3 Rh5 Rg1 h1Q Nh2 Rc2 Qg4+ Kd8 d7 Kc7 d8R Qb5 d6+ Kc6 d7 Nh6 g8Q Bg7 f8Q Qa4 f7 Bb2 g7 Rha5 Re8 Nf5 d8R Bc3 Rd4 Rd5 Ke2 Rc1 Be1 Bb7 Rd8 Bb2 Kd2 Rc3 Qe8+ Kc5 f8N Ra5 Nh7 Nc6 Nf6 Rf3 Ra8 Kd6 Qc8 Rc5 Rg3 Qf1 Ra7 Qfa6 Rh3 Qb6 Rh8 Qc7 Qf7 Qd7 Qfg8 Ba6 Rc7 Bb7 Qf7 Rb5 Qe6+ Kc5 Qe2 Kd6 Qc4 Ra5 Rd3 Be5 Rd4 Bg3 Qc1 Ba8 Qa6 Bb7 Qac4 Bf2 Rd3 Bc5 Rd4 Bb6 Q1c2 Qe6 Qh4 Rg3 Rcc8 Ba7 Bf2 Ne3 Nc3 Qd7 Rg1 Bb6 Nb1 Rf3 Qc1 Bd8 Be1 Nf5 Rg6 Rb5 Qg4 Rc5 Qe2 Rcc3 Qc4 Rce3 Rc7 Re5 Ne8#
2rq2B1/rQ2p1PR/nRb5/1Nn2P1Q/1RpbRPq1/6k1/1N1KQB1n/2N5 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 d4 h5 b4 a5 f4 c5 d6 a4 d7 a3 g6+ Kf6 g5+ Kg7 d5 h4 d6 a2 b6 h3 b7 h2 b5 Ra7 b6 Ra6 Na3 Qe8 d8N Rh3 d7 Rh4 Rb1 a1Q Kd2 Ra7 Qe2 Qf7 Ne6+ Kh8 d8R Bh6 g7+ Kh7 Rd4 Bd7 Re4 Qh5 Nc7 Bc6 Rbb4 Qg4 Nc4 Qa5 Nb2 Nf6 Nb5 Na6 b8Q Nd7 b7 Qd8 g8R Bf8 g6+ Kh6 Qd6 Kh5 b8Q Bh6 Qb7 Bg7 Qdd3 Bd4 g7 Rh3 Qdf3 Kh4 Rf8 Rg3 Rf6 c4 Bg2 Ndc5 Rfe6 Rh3 Rd6 Qg5 Qh5+ Kg3 Bf3 Qg4 Rf6 Bd5 Rb6 Rh4 Re3 Bc6 Bd5+ Qf3 Re4 Qg4 Bg8 Rh3 Qg5 Rh6 Qh5 Rh8 Bf7 Re8 Bg8 Rf8 Nf3 Re8 Ne5 Rf8 Ned3 Re8 Rd1 h1N Re1 Nf2 Rh1 Rf8 Kc2 Qd7 Qf7 Qg6 Rh7 Rc8 Be3 Ng4 Kd2 Nh2 Nc1 Qg4 Qh5 Qd8 Bf2+
Q4q1b/1Q2pP1R/3p1R2/Bq3Nq1/BQk1Pb2/rrN2n2/4KR1P/NN3n2 b - - 0 1 illegal: No possible last move
nR1q2B1/K1BP2Q1/2r1pbn1/Q2P1P2/1Nr1k3/1N1qRp2/2bb2N1/2QR3N b - - 0 1 illegal: No possible last move, all moves rejected
1B1KR1rk/3PPQp1/6Q1/r1R1R3/4NbnB/P1p1nR2/1Nq2bB1/1b1q3N b - - 0 1 illegal: No proof kernel
R2Q1B1k/3p1b1N/B3pn2/qN1Q1RP1/4P1B1/Qr2BP2/4nb1K/qb3rN1 b - - 0 1 legal: proof: g4 b5 h4 g5 hxg5 c5 a4 f5 gxf5 c4 axb5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 c4 Kf7 b4 Kg7 e4 a5 f6+ Kg6 c6 h5 c7 Kh7 b6 a4 f7 a3 b5 h4 c5 e6 b7 h3 b6 a2 c6 h2 Be2 Ra7 Kf1 Nh6 Kg2 Qe7 Nc3 Qa3 Qd5 Ng8 Bg4 Kg7 Nb5 Qa5 Be3 Bc5 f8N Rh3 Nh7 Kh8 Rf1 Nf6 Ra1 Na6 b8Q Nb4 b7 Nd3 Qa8 Nc1 b8B Ba6 c8B Ne2 c7 Rb7 Rf1 a1Q Ba7 Bd4 Bc5 Rf3 Bf8 Rb6 Bb7 Rf5 c8Q Bc5 Na3 Bd3 Qd8 Rb3 Nb5 Bb1 Ba6 Bb6 Qa7 Bd4 Qac5 Rf3 Qa3 Ba7 Nh3 Bd4 Rhg1 h1B+ Kh2 Rf5 Rg3 Bf3 Ng1 Bb6 Bh3 Bh5 Bg4 Bf7 Rf3 Rb4 Rc1 Rb3 Rc8 Bc5 Ra8 Bb6 Qd3 Rc5 Qd2 Rc1 Qd5 Rf1 Rf5 Bc5 f3 Bd4 Bd2 Bf2 Be3
3Kn2b/1bNp2N1/QP1BB1q1/r1Q3N1/BR1Prq1p/3B1k2/2R2PR1/2nq4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 f5 axb5 g5 hxg5 c4 exf5 c3 bxc3 Nf6 c4 Ng8 c5 Bg7 Nf3 Bh6 Ng1 Bf8 Ke2 Kf7 Kf3 a5 Ke4 h5 Ke5 h4 g4 a4 c4 a3 d4 e6 f6 Kg6 f7 a2 b6 Ra4 c6 Na6 c5 Ra5 c7 Ra4 c6 Bb4 f8N+ Kg7 g6 Nf6 g5 Qe7 Ba3 Nc5 Bd3 Qe8 Kd6 e5 Nf3 e4 Ne6+ Kg8 g7 Kh7 g8B+ Kg6 Qe2 Kh5 g6 Kg4 g7 e3 Nc3 Nh5 Nd5 Qg6 Ke7 Ra6 Rhb1 Bb7 c8Q Ra5 c7 Nf6 Kd8 Nb3 Qf1 e2 Nfg5 Bf8 Bd6 Nc1 Rb4 e1Q Bh7 Rb5 g8B Qd1 Ng7 Ra5 Bc2 Qf3 Ba4 Ne8 Qa6 Qf4 Rab1 a1Q Be6+ Qff5 R1b3 Qb1 Re3 Qb3 Rh3 Qd1 Rh2 Rg8 Qb8 Rh8 c8R Rg8 Rc2 Rh8 Nf7 Kf3 Qc8 Qf4 Qc5 Rg8 Nc7 Rh8 Nf5 Bg7 Rg2 Be5 Ng7 Rg8 Nf5 Bh8 Ng7 Rf8 Nh6 Rf6 Nf7 Rf5 Nb5 Re5 Nc7 Qh5 Bhf5 Qg6 Bd3 Re4 Ng5+
n1R5/1QP2kP1/1rbB2pp/2N5/Qq1Nn1B1/bQ3qrR/Q2P2RB/K1n5 b - - 0 1 illegal: No proof kernel
3RBRQq/2p2B1Q/1bb2BrR/4r1rn/PK3pq1/3NNP1R/Q2P4/4k2n b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 d5 exd5 b5 g4 b4 gxh5 b3 cxb3 Bf5 b4 Be6 b5 Bc8 a4 Kd7 h4 Kd6 b6 Ke5 h6 Kd4 d6 e5 b7 g5 d7 f5 a6 f4 a7 g4 h7 g3 f3 g2 h5 e4 h6 e3 Bc4 e2 Na3 Bg7 Bf7 Kd3 Nh3 Bf6 Qb3+ Bc3 Nc4 Qg5 d8R+ Bd7 Bb2 Qh5 Qa2 Nc6 b8Q Ne5 Ne3 Ba5 Rb1 Ng4 Bf6 Qe5 Rb6 Nf2 Qc8 Rb8 a8B Qb2 Rh2 Nh1 Bc6 Qc3 Ra6 Rb5 Rf8 Bb6 Qa8 Be6 Bce8 Bd7 Qb8 Rg5 Ra8 Qe5 Nf2+ Kd4 Rh4 Bc6 Rh3 Rg6 Nd3 g1Q+ Nf1 Qg4 Ne3 Ng3 Kf2 e1R Qc8 Rg1 Qb8 Nh1+ Ke2 Rg3 Kd1 Rg2 Kc2 Re2 Kb3 Rg5 Bg7 Nf6 Kb4 Nh5 Bf6 Rhg8 h8Q R8g6 h7 Re1 Qg8 Re2 h8R Re1 Be7 Qg7 Rh6 Qh8 Qh7 Re2 Ne5 Re1 Bf6 Re2 Nd7+ Kd3 Qc8 Re1 Nc5+ Ke2 Qce6 Kf2 Rd8 Re2 Qf5 Ke1 Qg8 Rg7 Qfh7 R7g6 Nf1 Re7 Ne3 Ree5 Nd3+
Q1RrBbbk/2pn1q2/5Qr1/1NP1Q2R/3qB2P/R3R1N1/3pP2q/n4KB1 b - - 0 1 illegal: No possible last move
1b1qQ1Rq/1Np1Br1Q/B3n3/2pQP1r1/BRPr3b/P1nN2B1/2NK2k1/8 b - - 0 1 illegal: Other
R1N2Qqb/Bpb1Q3/NPP2b2/1K1RQrP1/5B2/1n1k2rn/3p2q1/3BQ1R1 b - - 0 1 illegal: No proof kernel
rRq2N2/1p1nKQp1/P2R1B2/2q1bBBr/P4b1q/1P2R3/N6B/n2NQk2 b - - 0 1 illegal: No proof kernel
2qrQrb1/1pNP1nb1/1pQ1B3/R3Rbn1/2NKNB1P/1B1N2P1/q7/R6k b - - 0 1 illegal: Other
1bkB1n2/P1Rr4/6p1/2Pn2K1/1Q2NpQ1/2rq1bQR/QPqB1N2/n2R3B b - - 0 1 illegal: No proof kernel
b2bkr1q/Ppb4P/2Prp2B/2q1Nn2/2RBQRK1/8/N2QBN1N/2n4Q b - - 0 1 illegal: Other
3Q2QN/p1NRBn2/p1k2K1Q/4P2b/3RBn2/P3P1Nq/r2Qbq2/1b1Br3 b - - 0 1 illegal: Other
1B1Q2R1/p1q1PQP1/P1B4N/rk4qR/r1n1p1b1/3N1N1b/N4KB1/n2qQ3 b - - 0 1 legal: proof: f4 c5 h4 g5 hxg5 d5 e4 e5 exd5 e4 b4 Bg7 bxc5 Be5 fxe5 Qa5 Nh3 Qb6 Ng1 Qd8 c4 Kd7 d4 b5 a4 h5 g4 f5 c6+ Kc7 c5 f4 g6 h4 g5 b4 a5 b3 a6 f3 g7 h3 g6 b2 e6 h2 e7 Qd6 Kf2 Rh4 Nc3 b1Q Qe1 Qd7 Bf4+ Qd6 Na2 Rh7 Bg2 Nf6 g8N Nfd7 Nh6 Nb6 g7 Qb4 Rd1 Be6 Be5 Kc8 c7 Kd7 c8B+ Kc7 c6 Qa5 Bd7 Nc4 Be8 Kb6 c7 Bg4 c8Q Qdc5 d6 Qc7 d5 Nc6 d7 Nd4 d8Q Rb8 d6 Nc2 Bc6 Na1 d7 Rh8 Bf4 Qg5 Qg8 Kc5 d8N Rb4 Ndf7 Ra4 Qcd8 Kb6 Qge8 Rf8 Ne5 Rf5 Nd3 Rfa5 Kf1 f2 Qf7 Qe5 Nf3 Qg5 Ke2 f1B+ Kf2 Rd5 Rg1 h1Q Bd6 Qhh5 Rh1 Rda5 Be5 Qhg6 Rh5 Qd6 Nf4 Qd5 Rb1+ Kc5 Rb8 Qd1 Rc8 Qb7 Bb8 Qc7 Qdd2 Kb6 Rg8 Kc5 Qd8 Kb6 Bh1 Bfh3 Bg2 Kc5 Nd3+ Kb6 Bd5 Kb5 Bc6+
2k2B1K/pbP5/B1N2Q1R/N7/3BR1nP/r1q1bNN1/1qp1PQ1Q/2bn3r b - - 0 1 illegal: No proof kernel
1NbQq1nK/3br3/1RQ1Q1R1/b1B5/Q1R5/nB1PPrNk/p2P1p2/1B3b2 b - - 0 1 illegal: No proof kernel
bB3r2/N2n4/Q1rN2RB/1RP1p1n1/K1RRr2k/P3N2P/1b1Q3p/rq3B2 b - - 0 1 illegal: No proof kernel
BB1b1k2/Rqbr3B/1N2n1p1/2P1pb1B/2R2r2/R2N1n1P/1KQ2Q1P/3b3N b - - 0 1 illegal: No proof kernel
1BRNbn2/8/1bnrQnpB/pqQP4/2RPQB2/K2N1r2/1P1k2BN/5n2 b - - 0 1 illegal: No possible last move, all moves rejected
5qQr/RrQ2Qb1/3PK1PR/r2N4/3k3p/1Pp3nB/nr2RNbN/2R3B1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 a5 g4 e5 f4 h5 d4 e4 g6+ Kf6 b3 h4 d6 a4 Kd5 e3 b6 c4 g7 e2 d7 e1R g5+ Ke7 g6 Kf6 b7 a3 Nd2 c3 Ndf3 a2 Be3 Rh6 Nh2 Qe8 d8Q+ Be7 Bh3 Ra4 Qc7 Bd7 Qf3 Nc6 b8R Qf8 Re8 Rh5 Qf2 Nh6 g8N+ Kg7 Nf6 Ne5 Qf3 Bc6+ Ke6 Rb4 d5 Re4 d6 Re2 Nd5 Rb2 Qf1 Rb4 f6+ Kg8 f5 Rb7 f7+ Kg7 Rc1 a1R Ra8 Ra4 Ra7 Ra5 Qf3 Nd3 f6+ Kh8 Re1 Nc1 Re2 Nf5 Qf1 Ng3 Bc5 Qg7 f8Q+ Qg8+ f7 Na2 Qfb8 Kg7 Qf5 Qd8 f8R Rh8 Qf3 Qe8 Rf5 Qf8 Rh5 Ra6 Rh6 Ra5 Nf4 Be4 Qf1 Bg2 Nd5 Kg8 Qbd8 Bf6 Qf5 Bg7 Qa8 Rh7 Qff7+ Kh8 Qad8 Bd4 Qg5 Qd8 Bg4 Bf6 Qe5 Qg8 Nh3 Qf8 Qfd7 Kg8 Rc1 Rh8 Qf5 Be5 Bg1 Bf6 Nf2 Bd4 Qe7 Be5 Kd7 Bf6 Qee6+ Kg7 Bh3 Bd4 Nb4 Bf6 Qfd5 Be5 Qg8+ Kf6 Nhg4+ Kf5 Nh2+ Kf4 Qdf7+ Bf6 Ne4 Ke5 Nd5 Bg7 Nf2+ Kd4 Ke6
B1NRb1rB/1n1n4/1p2kB2/2P2r1p/B1PQ4/1rN4P/NQ2R1bK/1Q3qr1 b - - 0 1 legal: proof: d4 c5 dxc5 a5 e4 f5 exf5 a4 g4 e6 f4 a3 g5 Nh6 bxa3 Ng8 a4 Be7 a5 Bf6 gxf6 Kf7 Bg2 Kf8 Bf1 Ke8 Kf2 Kf7 Kg2 g5 a4 h5 a6 d5 a7 d4 a5 d3 h3 e5 a6 e4 Rh2 d2 Nc3 e3 Bb5 g4 Na2 g3 c4 e2 Ba4 e1R Ne2 Rh7 Nec3 Ne7 Bb2 Qg8 Qb1 Kf8 f7 Kg7 f8B+ Kf6 Bg7+ Kf7 f6 d1B f5 Re4 Bh8 Qf8 Kg1 Bf3 Re2 g2 Kh2 g1R Rf2 Nbc6 Re2 Rb8 a8N Re3 a7 Bg2 Nb6 Ne5 a8B Bd7 Nc8 b6 Bg7 N7c6 Bh8 Ke8 f7+ Kd8 f6 Na5 Qg6 Bdc6 Rd1+ Nd7 Qb1 Nb7 Rd4 Rg7 Rd5 Rg8 Rdd2 Qe8 f8Q Rf3 Qg7 Qf8 f7 Rf5 Qe5 Rg3 Qd4 Re3 Na7 Ke7 Nc8+ Ke6 Bf6 Qd8 Bh8 Qf6 f8Q Qf7 Qfg7 Bb5 Ne7 Rg8 Nc8 Qf8 Ne4 Rb3 Ba1 Rgf1 Qdb2 Rg1 Qgd4 Re5 Nec3 Qf1 Rf2 Rd5 Rf8 Rdg5 Rd8 Rf5 Re2+ Ne5 Q2c1 Ba6 Nd1 Bh1 Qde4 Bg2 Bc3 Bb5 Qcb2 Bd7 Bd4 Be8 Ndc3 Kf7 Qg4 Nd7 Bde5 Ke6 Qd4 Bh1 Bef6+ Be4 Rd2 Bg2 Re2+
2B3r1/5P1Q/1Br1p3/RK1P2p1/1Q1Q2QB/1RbNr1Pr/kn1b2N1/nq1R4 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 f5 exf5 b4 h5 b3 axb3 Bd7 b4 Be6 b5 Bf7 Na3 Nc6 Nb1 Bg6 hxg6 Nb8 d4 Kd7 Kd2 Kd6 Kc3 h5 Kb3 a5 f4 c5 b6 c4+ Ka4 h4 b4 h3 g7 h2 f6 c3 b5 e6 f7 c2 f5 Nc6 f6 Rh7 b7 Qb8 b6 Be7 f8Q Rh5 f7 Qc8 b8R Rh4 b7 Ne5 Ne2 Nf6 g8Q Nc4 Nf4 Ng4 Qh7 Rh3 Nc3 Nge3 Qg4 Qd8 Bb2 c1R Nd1 Nc2 Ne3 Qb6 Nd3 Re1 Bc3 Qb1 Qfh8 Ra6 Rg1 h1R Qf6 Re2 Be1 Rc6 Bh4 Bf8 Ra3 Na1 Ra8 Be7 Rb3 Bd8 b8Q+ Bc7 Kb5 a4 Ra5 a3 Ka4 a2 Qb5 Re1 Be2 Bb6 Qb4+ Bc5 Bf3 Re2 Rd1 R1h2 Qb6 Bb4 g3 Bd2 Ng2 Re3 Be4 Rh1 Qf2 Rf1 Qe1 Rf6 Qf2 Rg6 Qb4+ Rc5 Qf6 Rg8 Qfg7 Nc2 Qf6 a1B Bf3 Bac3 Qff4+ Kd7 d6 Na1 Bb7 Rcc8 Ba6 Kc6 d7 Rc7 d8B Rc8 Nc5 Kd5 Qf2 Rc6 Bc8 Kd6 d5 Ke5 Ne4 Kd4 Bb6+ Kd3 Qg7 Kc2 Nc5 Qc1 Nd3 Qb2 Nc1 Kb1 Nd3+ Ka2 Qh7 Qc1 Qf6 Qb1 Qfd4 Nb2+ Kb5+
1Rr2R1K/5pB1/b1rb1N2/q1Pb4/QN1P1Q1Q/4bR1B/1kP1p2R/1nB3n1 b - - 0 1 illegal: No proof kernel
1rB1nNQ1/N1rr1p2/1R1BRpbP/2PQ2Pk/6nb/K1R5/1rN5/2q2BB1 b - - 0 1 illegal: Other
2rkN2R/2r1pB2/K2Nr2B/1N2Q1n1/3b2q1/RPn1P2p/Q2Pb1B1/QN5r b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 h4 Qd6 g4 Qb4 g6 Qd6 h5 Qb6 g7 Qc6 g5 Qg6 hxg6 Kd8 Ra5 Kd7 Ra1 Ke8 Nc3 f5 e3 h5 Ke2 c5 Kd3 a5 Kc4 f4 d6 f3 b6 h4 Kb5 f2 b7 c4 Nge2 a4 Nd4 Na6 b8Q Nh6 g8N a3 g7 a2 g6 Nf7 Bg2 f1Q b3 Qd3 Bb2 Qe2 Qf1 Ng5 d7+ Kd8 Ka5 Rh6 Nf6 Qg4 g8B Bg7 Ne8 Nb4+ Kb6 Be5 Bf7 Nd5+ Kb5 Ra7 g7 Re6 g8N Bg7 Ngf6 Ra8 Qbf4 Ba6+ Ka5 Bh8 Nd6 Rc8 Qe1 Kc7 d8Q+ Kb8 Qe8 Kc7 Qa4 Kd8 Nfe8 Be5 Rd1 a1R Qef1 Bb7 N4b5 Ba8 Ka6 Rb1 Ne4 c3 Rh3 c2 Nec3 Ra1 Rb1 c1R Qd1 Ra2 Ra1 Bh8 Qc2 Rh1 Nb1 Bc6 Bf6 Rb2 Qc3 Rc2 Bg7 Ba8 Bf8 Bd4 Qe5 Rcc1 Qb2 R1c7 Ra2 Bc6 Qa1 Nc3 Qa3 Bd5 Q3b2 Bc4 Ra3 Be2 Qba2 Qf3 Rg3 Qf4 Rg4 h3 Rh4 Qf5 Rh8 Qg4 Bh6
4N1q1/1BP2pQ1/KPn1N2k/8/1r1bR1b1/2rR1Q1p/P3bB2/bn1B1BQN b - - 0 1 illegal: No proof kernel
2k1B2K/1PB1RprP/3P1N2/5qQB/1rpb1b2/1n2R2Q/1B2bR2/3n1NbN b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 Kf4 a5 Kf5 g5 h4 c4 e4 g4 b4 g3 d4 g2 d6 a4 e6+ Ke8 h6 a3 e5 a2 h5 Qe7 b6 Kd8 h7 Ra6 d7 Qe8 h6 Ra7 b7 Ra3 e7+ Kc7 d5 Rc3 e6 Bg7 d8B+ Kd6 b5 Qc6 e8N+ Kc5 b6 Na6 b8R Rg3 d6 Re3 Bb2 Nf6 Rh2 Rd3 Qg4 Bb7 e7 Nd5 Bc7 Kb5 Qg5 Bd4 Be2 Rg3 Bh5 Nc3 Nf6 Rg8 e8B Nd1 h8Q Rb3 Nd2 Rb4 Ne2 g1B Ng3 Rg7 Nh1 Nc5 Rf2 Ka6 Nf1 Qb5 h7 Bc6 Rb7 Bf3 Rc1 a1B Rc3 Qa5 Re3 Be2 Qg8 Be5 Qg2 Bf4 Qh3 Rg2 Qg5 Nb3+ Nd5 Qb5 Kf6 Qd7 Kg7 Qf5 Nf6 Rg4 Ba3 Bd4 Bb2 Rg2 Kh8 Rg3 Rb8 Rg2 Rd8 Kb7 Rd7 Kc8 Rde7 Rg4 Qgh4 Rg6 Qg5 Rg7 b7+
1bR2N1Q/1PPRR3/K1B4b/3rBpB1/P1n1pN1N/1N3qbk/n1b5/r1Q5 b - - 0 1 illegal: No proof kernel
NQ1B2R1/bpN3r1/3PkP2/4b1PB/Q3K3/Qp1Rn1b1/1qb1n3/NrR4N b - - 0 1 illegal: Other
B2k1Bn1/Pp1b1b2/Q2NN3/3B1P1b/R2KN1np/2R2q1r/NQQ3P1/2b3r1 b - - 0 1 illegal: No proof kernel
1Qbn1Rr1/p2P4/b5R1/P1Pk1NB1/5Rn1/q2NN3/bQr1N2p/K2B1b1Q b - - 0 1 illegal: No proof kernel
n3Q3/p2p2B1/B2Pr2N/1q2P3/nQk4K/1Rbr1RP1/1nN1b1Q1/BBn3R1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qe7 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg3 Ke6 c4 h5 e4 f5 d4 f4+ Kh4 f3 c6 f2 d5+ Ke7 c5 Nh6 e6 Qe8 c7 Nf7 c6 Kd6 e7 Kc5 b6 Bh6 g6 Ba6 c8B Be2 b7 Qf8 e8Q Bg7 c7 Ne5 Rh3 Qf5 Nf3 Nec6 Bh6 Nd8 Nh2 Bc3 g7 Kc4 g8Q Ne6 Bg7 Nc5 Qe1 Na4 Ng4 Na6 b8B Rh6 Rf3 Rd6 g3 Qe5 Bh3 f1N Nh6 Nd2 Bf5 Nb3 Qh7 Nc1 Na3+ Kc5 Nc2 Kc4 Bb7 Re6 c8R+ Nc7 Rb1 Rd6 Rb3 Re6 Kh3 h4 Qf1 Rd6 Qg2 Re6 Kg4 h3 Kh4 h2 Qhg6 h1N Qg4 Nf2 Ba6+ Kc5 Bh7 Nd1 Qf4 Ndb2 Bg6 Qd6 Qg4 Qc6 Qf4 Nb5 Bbe5 Rb8 d6 Nc7 Qg4 Rb5 Bd4+ Kc4 e5 Na8 Rb8 Nd1 Rb1 Ndb2 Rb7 Nb3 Rg1 Nc1 Bh7 Kd5 Qf4 Rb3 Rb6 Qb5 Qd2 Ba5 Qb4 Rd3 Rb7 Nd1 Ba1 Ndb2 Qd2 Bc3 Rb6 Qa5 Rb3 Qb5 Qf4 Kc5 Qb4+ Kd5 Bf5 Rd1 Nd4 Rd2 Bb1 Rd3 Qa5 Kc5 Nc2 Kc4 Qb4+
N1rQRN2/B4n1Q/N3B2b/2bPQr2/bp5B/2qrQ2p/K1P1q1RP/4k3 b - - 0 1 legal: proof: e4 a5 b4 f5 bxa5 d5 g4 c5 gxf5 Nd7 d4 Ndf6 dxc5 d4 Bf4 Qc7 Bc1 Nd5 exd5 Qd8 Kd2 Kf7 a4 Kf6 f4 h5 c6 g5 c7 e5 a6 b5 a5 d3 Kc3 e4 Kb2 h4 a7 g4 a6 g3 Na3 b4 Qf3 g2 Ka2 e3 Nb5 d2 Nh3 g1R Ng5 d1Q Nh7+ Ke7 f6+ Kd7 f5 e2 f7 e1B f6 Qe2 Qe3 Rg6 Bh3+ Qg4 Rg1 Bg7 f8Q Rg5 f7 Rf5 Rg2 Nh6 Qg8 Bf2 f8B Qf6 Bc5 Qe2 Qe5 Bg1 Bg5 Nf7 Re1 Bh6 Bg4 h3 Bh4 Qc6 Qg5 Bb7 Qge3 Rhc8 Bd4 Qc3 Bb6 Rab8 a8Q Bc6 Qb7 Ra8 a7 Bf2 Nd6 Ba4 Nb5 Rf8 Bc5 Rac8 a8N Rg8 Ba7 Bg1 Qg5 Bc5 Qge3 Rgf8 Nd4 Rg8 Ne6 Rgg5 Nhf8+ Ke7 Qf6+ Kd6 Qg7 Rf3 Qh7 Rgf5 Qb8 Bd4 Nc5 Rg3 Qf3 Ke5 Na6 Bc5 Qf2 Ke4 Qg1 Rd8 c8Q Rd3 Qcc7 Rc8 Qd8 Bd6 Qgb6 Bc5 Qb8c7 Ke3 Qe5+ Kd2 Qbe6 Rf2 Qee8 Rf1 Be6 Rf5 Qee7 Qf2 Re4 Qe2 Qg5+ Kd1 Qe3 Qf1 Q5f4 Bc6 Bd7 Ba4 Re8 Qfe1 Be6 Qe2 Rf2 Ke1 Qfe5 Rf4 Rg2+ Rf2 Bf6 Rf5 Bh4+
2N5/1R1r4/BB2Q2n/nK1R3q/1QpQn1P1/2qp1NbB/1k1P1NQP/1r2q3 b - - 0 1 illegal: No proof kernel
3B4/3bqQPQ/r1R3n1/P2q2N1/Kp1Q1R2/2bp1N2/BR1P1r2/r2QqB1k b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 Nc6 c3 Nd4 c4 Nb5 cxb5 Bh6 Rh3 Bg7 Rh1 Bf8 a4 Kf7 g4 d5 f4 h5 f6 Ke6 b6 c5 g6 c4 g7 d4 f7 Kd5 f5 Ke4 b7 e5 b8Q c3 f6 h4 a6 h3 a7 c2 a5 h2 g5 Rh5 g6 Qe8 Qb6 Be7 f8Q Qb5 f7 Qc6 Nc3+ Kf4 Rb1 Kg3 Nf3 e4 Bb2 e3 Ne4+ Kg4 Bc3 c1Q Rb2 e2 Neg5 Kg3 Qe8 Be6 f8R Bf6 Qf7 Ne7 g8B Qd5 g7 Bd7 Rc8 Qa1 Rc6 Ng6 Qc5 Rf8 a8Q Rh6 Qa6 Qaa2 Qd3 Qe5 Qe4 Qad5 Qc4 Qe7 Qeb1 Nh4 Qh7 Ng6 Qd3 Kf4 Rg1 h1R Rg2 Rg1 Rh2 Kg3 Rh4 Rh1 Rf4 Rg1 Nh4+ Kh2 Nhf3+ Kh1 Qe4 d3 Qd4 Qed6 Kf2 Be5 Ke3 Qb5 Ke4 Qe7 Ke3 Qb7 Ke4 e1Q+ Kd5 Bf6 Kc4 Qb5+ Kb3 Qd5+ Ka4 Be5 Qe3 Bf6 Bd4 Be5 Bb6 Bc3 Bh3 Rf1 Qd4 Rf2 Bc7 Ra8 Bb6 Ra6 Bd8 Rh4 Qf8 Rg4 Qf7 Rg1 Bf1+ Rh2 Qa1 Qf5 Qe6 Qc1 Bh3 Rf2 Qef6 Qfe4 Ba2 Qd5 Qf7 Qf1 Qb1 Qfe2 Qc2 Ra1 Qd1+ Qe1 Bf1+
2R3rQ/n1prb2Q/R1P1Pp2/nR3N2/3N1r2/2B1NR2/BQ1qqP1K/2kn4 b - - 1 2 legal: proof: d4 a5 g4 b5 a4 h5 gxh5 e5 dxe5 Bb7 axb5 a4 b3 a3 b6 Bf3 Bh6 Bc6 Bc1 Ba4 bxa4 Rh7 Kd2 Rh6 Ke1 Rh8 c4 Ke7 e4 Ke6 h4 d5 h6 g5 h7 g4 c5 d4 c6 f6 a5 g3 b7 d3 a6 g2 a7 a2 h5 Bg7 h6 Na6 b8R Qe8 Rb5 Nc5 Nf3 g1R Nc3 Na6 Qd2 Rg6 Nd4+ Ke7 e6 Kd6 e7 Rd8 a8R Bf8 Rh3 Rd7 Bb2 Nc5 Rc8 Ke5 Nd1 Rg4 Bc3 Rf4 Qb2 d2+ Ke2 Qd8 e8N Ne7 Ng7 Rg8 Ne3 d1N h8Q Qe8 h7 Qd8 Rcb8 Nc8 Rf3 Na7 Rc8 Be7 Ngf5 Qe8 Bh3 Qh5 Kf1 Qg4 Rg3 Qe2+ Kg1 Qd2 Kh2 Qe2 Rb4 Nb7 Rf3 Na5 Qg7 Qd2 h8Q Qe2 Qgh7 Qd2 Rb1 a1Q Rb6 Qa2 Ra6 Qe6 Nh6 Qc4 Be6 Qce2 Bd5 Kd6 e5+ Kc5 Nb3+ Kb5 e6 Ka4 Nd4 Qf1 Qb5+ Ka3 Nhf5 Qc4 Qb6 Qce2 Rb3+ Ka2 Rb5+ Ka3 Bb4+ Kb2 Ba2 Kc1 Bc3 Qc2 Qc5 Qcd3 Qb4 Qdd2 Qb2+
K2k4/b1p1RQN1/1q2B2B/6N1/1p1PRn1q/nP1b3r/1qb2NBP/Q4QB1 b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 fxe5 a5 g4 b5 gxh5 b4 a4 Ra6 Ra2 Rb6 Ra1 Rb5 axb5 Qd6 Nf3 Qf6 Ng1 Qd8 Kf2 g5 Kf3 f5 e4 f4 h6 a4 h7 a3 b3 a2 d6 Nf6 d7+ Ke7 e6 Ba6 e5 Ne8 Ke4 g4 Kd5 g3 b6 f3 b7 g2 Nc3 f2 Nh3 g1Q Ne4 Bg7 Nhg5 Bd3 Bg2 f1B Nf2 Nc6 b8B Bf5 Ba7 Qa8 d8Q+ Kf8 Qd7 Bb5 Qf1 Rg8 h8Q Bh6 Qdh7 Ng7 e7+ Ke8 d3 Kd7 e8N Qb7 e6+ Kd8 Bf4 Qb6 Re1 a1Q Re4 Nh5 Qf7 Qa2 Qha1 Nd4 Ng7 Nc2 Bc1 Qb2 e7+ Kc8 e8B Rh8 Bd2 Na3 Bd7+ Kd8 Be6 Ba6 Be3 Q6d4+ Kc6 Nf4 Bd2 Bc4 Kb7 Qf6 Nf3 Qh4 Ka8 Bg5 Bc1 Bf6 Ng5 Bd4 Be3 Ba6 Bc5 Bh7 Bf8 Ba7 d4 Bd3 Ne8 Bf5 Bh6 Rh7 Ng7 Bc2 Re5 Bfd3 Re4 Rh8 Qfb1 Qgc1 Re1 Qd2 Qc1 Qdc3 Re2 Qc5 Qf1 Qa5 Nh1 Rh7 Bg1 Qb6 Nf2 Qc3 Bc8 Qd6 Re6 Qb2 Re7 Qb6 Be6 Qg4 Re4 Rh8 Ne8 Rh7 Bg7 Rh3 Bh6 Qh4 Ng7
1rk2K2/2q1Nn1R/1R2Q1N1/QBb3R1/3Bp1bb/Ppq1q2n/1PNPB3/1N6 b - - 0 1 illegal: Other
k1qQ1r2/4N3/1rqQ2K1/1Bb1Q1Bp/1Bb4N/p2N2R1/P2Pb1PQ/3Rn2r b - - 0 1 legal: proof: h4 c5 b4 d5 bxc5 g5 f4 d4 f5 d3 hxg5 Nc6 exd3 Qd7 d4 Ne5 d5 Ng6 fxg6 Qd8 Kf2 Kd7 Ke3 Kc7 Kf4 Kb8 c4 a5 c6 f5 c7+ Ka7 g7 h5 d6 b5 g6 a4 Kg5 b4 c5 f4 d7 f3 c6 f2 Rh3 b3 Nf3 b2 Na3 b1R Nc4 Rh7 Nb2 Nh6 g8Q Ng4 g7 e5+ Kg6 e4 Qh8 e3 g8N e2 Nh4 e1Q Qe5 Bc5 Ne7 Nh2 Nd3 Nf3 Ba3 Ba6 c8Q Bc4 Bb4 a3 c7 Qh8 d8B Qe4+ Qcf5 Ne1 c8Q Qc6+ Qfe6 Rc1 Be2 f1B Q6d6 Qf8 Rg3 Rh6+ Kg5 Rb8 Rb1 Rh8 Kg6 Rb6 Qc7+ Ka8 Qb3 Rc3 Rd1 Rc1 Qbc3 Ra1 Qcd4 Rb1 Qg1 Ra1 Qh2 Qf5+ Kg7 Qc8 Kg6 Rf8 Nc1 Be6 Bb5 Be2 Nd3 Rb1 Ng8 Bc4 Bg5 Rf1 Qd7 Rh1 Ne7 Rb3 Nb2 Rf3 Nd3 Rf8 Qd8
2Bb3k/n2q2N1/1Q2p1qQ/Q5pR/1NRPPP2/2qB2QK/3rN3/1b3nBb b - - 0 1 illegal: No possible last move
2k2K1n/1Qq5/Np2RNRn/2P2qB1/pP2QN1q/1Q1bQ3/2BB2P1/r1b3b1 b - - 0 1 legal: proof: e4 f5 exf5 c5 d4 Qb6 dxc5 Qc7 h4 Qd8 a4 g5 hxg5 b6 a5 Nc6 a6 Rb8 Rh3 Rb7 axb7 a5 Rh1 Nb8 Ke2 h5 Ke3 d5 Kd4 Kd7 Ke5 h4 f4 h3 c4 d4 b4 e6 f6 d3 c6+ Kc7 c5 d2 g6 h2 f7 a4 g7 Bd7 f5 Be7 f8Q Bc8 f6 Rh7 f7 Qd3 Qe1 d1Q Qe4 Rh4 Nc3 Rg4 Nge2 Nh6 g8Q Rf4 Qe8 Bg5 f8B Qb1 Be3 Qd7 Be7 Qd8 Bd2 Nd7+ Kd4 e5+ Kd5 Rf3 b8N Ba6 Ke6 Kc8 c7 Bd3 Na6 Rg3 Qe3 e4 Nd5 Ne5 Nf6 Ng6 Nf4 Nh8 Qc6 Qc2 Re1 Rf3 Be2 Rf1 Bd1 Qb1 Re2 Re1 Rf1 h1Q Bc2 Qh4 Rf3 Rg1 Rg3 Qf1 Qd5 Qf3 Qg6 Ra1 Qb3 Qf2 Qd4 e3 Qge4 Qf1 Re1 e2 Qde3 Qe8 Rg4 Qf7+ Kd6 Qh7 Bd8 Qf5 Ke7 Qg1 Kf8 Qgh2 Nh5 Bf4 Rg6 Bg5 Nf4 Q2g3 Rc1 e1B Be7 Bf2 Re1 Bg1 Nd5 Kb7 c8Q+ Ka7 Bd8 Qc7 Qd7 Kb7 Nf4+ Qd5 Qde7 Kc8 Qe2 Qb8 N4h5 Qd4 Qed5 Qbe5 Bc3 Qf5 Bc7 Qde4 Bf4 Ng8 Qd4 Qed5 Qb7+ Kd8 Qef2 Qfd7 Re6 Qc7 Qe4 Nh6 Bc1 Qf5 Qff3 Bf4 Qfe2 Be5 Bg5 Bf4 Be1 Bc1 Nf4 Ng4 Bd2 Nh6 Qa7 Kc8 Q2e3 Qce5 Qf7 Qb8 Qa7 Qc7 Qab7+
B1Q3b1/Bq2bR2/1r1q2N1/1pn1N2Q/2PR1pBb/1PR1k3/5n1P/n1KR3N b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 c5 d4 Qe7 dxc5 Qd8 gxh5 b5 a4 Rh6 a5 Rb6 axb6 a5 Qd5 Ra7 Qd1 Rc7 Kd2 Rc6 Ke1 Rh6 Bd2 Rh7 Bc1 Rh8 Kd2 Ke7 c4 Ke6 e4 d5 h6 g5 b7 f5 c6 a4 b3 d4 h7 a3 c7 a2 Nh3 d3 Bg2 f4 Qh5 g4 Nf2 g3 Rd1 Bd6 Nh1 Na6 b8Q Bd7 c8B Ke7 e6 Kf6 e7 Nh6 e8R Qe7 Rd8 Nc5 e5+ Ke6 Bb2 Ng4 Ba8 g2 Bd4 g1B Kc1 Bf2 Nd2 Bh4 Nf3 Nf2 Qc7 Rg8 h8N Rg6 Rb1 Rf6 Ng6 a1N Rf8 Qg7 Rf7 Be7 Rb2 Qh7 Rc2 Qg7 Rc3 Qh7 Qh6 Kf5 e6 Bc6 Bd7 Ke4 Qc8 Bd5 Nfe5 Qg7 Qh5 d2+ Kb1 Ncd3 Ba7 Nc5 Rd3 Qh7 Rd4+ Ke3 Kb2 Bd8 e7 Rb6 e8R Bde7 Rd8 Qg7 Rc1 d1Q Rc3+ Qd3 Bg4 Be6 Rf6 Bg8 Kc1 Qf7 R8d7 Qd5 Rf7 Qd6 Rc2 Qe4 Rd1 Qb7 Rd8 Qdc6 R8d4 Qd6 Rc3+
1BQ5/3prB1N/3NNRR1/1pnn1qQ1/rB4Nr/1P2Q1bn/P2P4/4qk1K b - - 1 2 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 b6 b4 Ba6 bxa5 Bb7 Nh3 Bd5 Ng1 Bb3 cxb3 Ra6 Bb2 Ra7 Bc1 Ra8 f4 Kf7 Kf2 Kf6 Kg2 g5 h4 e5 h6 c5 h7 c4 a6 g4 h5 c3 h6 b5 a7 e4 Nh3 g3 Qe2 c2 Nf2 e3 Rg1 Bd6 Na3 Qb6 Kh1 Bc7 Nc4 Qc5 Ba3 c1R Ng4+ Ke7 f6+ Ke6 f7 Kf5 f8N Ke4 f5 Qb4 f6 Bd8 f7 Bh4 Ne6 Re1 f8N Qc5 Bb4 Ne7 Rb1 Qf5 Nd6+ Kd5 Rc1 Na6 Rc6 Nc5 Qf2 e2 Qe3 Re8 a8Q g2+ Kh2 Rc1 Qc8 e1Q Qg5 Rc4 Bd3 Rg8 h8Q Rg6 h7 Rh6 Rf1 g1N Kh1 Nh3 Qc3 Bg3 h8B Rh4 Nh7 Rf4 Be5 Rd4 Nc4 Rf4 Be2 Ke4 Bb8 Nd5 Bd1 Re7 Qe5+ Kd3 Nd6 Rd4 Bf3 Nc7 Bd5 Rc4 Qef4 Ke2 Rg1 Qf2 Rg2 Kf1 Qe3 Re4 Nd4 Rf4 Bf7 Qe1 Ne6 Nd5 Ngf6 Qf2 Qh6 Qe1 Nc7 Na6 Bc5 Qc1 Nc4 Bh2 Rg6 Qfc2 Qg5 Qf5 Ng4 Bg3 Rcf6 Qe1 Nd6 Ra4 Bb4 Nc5 Ne6
N1Nb3b/3kp1QN/2b5/qRBnN2r/2KnP2R/2nPP3/p1R1B3/1Q2Qq2 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 h5 gxh5 a5 e4 Ra6 a4 Rf6 axb5 Rf3 Ne2 Bh3 Ng1 Re3+ fxe3 Bc8 Ke2 c5 Kd3 f5 b4 g5 h4 f4 d6 g4 b6 g3 d7+ Kf7 b7 Ke6 h6 a4 h7 a3 b5 f3 h5 f2 h6 g2 b6 a2 Na3 Na6 b8Q Nc7 b7 Na6 Kc4 Qc7 d8N+ Kd6 d3 Bd7 Qe1 Bc6 Rh4 Nb4 Ne6 Nf6 Ng5 Nh5 N1f3 g1B Ne5 Bh2 Be2 f1Q Bd2 Bf4 Rc1 Ng7 Rc2 Nd5 Bc3 Ne6 Bb4 Rg8 h8R Bg7 Nh7 Nd4 Nb5+ Ke6 Rh5 Qa5 Nd6 Rf8 Nc8 Rf5 Rh4 Rh5 Rg8 Bh8 Rg5 Qb6 Nd7 Qd8 Ndb6 Bc7 Na8 Kd7 Ba3 Bb6 Qe5 Qc7 b8Q Qa7 Qg7 Bd8 Qbb1 Qa5 Bb4 Nf4 Kc3 c4 Rb5 Nd5+ Kb2 Ne6 Bc5 c3+ Kb3 Nd4+ Kc4 Qa6 Ng5 Qa3 h7 Qa5 Qe5 Bg7 h8N Bf6 Nhf7 Bh8 Rd2 c2 Nh7 c1N Q5g3 Nc3 Qg7 Nd5 Bd1 Nce2 Rc2 Nec3 Bg4+ Rf5 Be2 Rh5 Ne5+
N1B2rn1/4k3/p1rpNB2/2q1nK1Q/2r2RN1/1Q1P2N1/QqPP2R1/1bn3R1 b - - 0 1 illegal: No possible last move, all moves rejected
K2NR3/4P1q1/R5pQ/1k1N2NQ/n1r4Q/R1b2BN1/3pPqPr/Br3q1n b - - 0 1 illegal: Other
1BBnQ1Rq/1P2Q1pr/Np6/NB4P1/3b1r1q/R3b3/KPQ3kb/3Qr1N1 b - - 1 2 illegal: No proof kernel
2b2RBr/1n1bp2B/1qRPR3/2pPB1qB/4Q1Q1/1rN2Nbk/K3P2N/4q3 b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 b5 fxg5 b4 h4 b3 axb3 Na6 b4 Nb8 b5 Ba6 Qb3 Bb7 Qd1 Bc8 g4 Nd7 g6 Bg7 h5 Bb7 g5 Bf8 g7 Bc8 Qb3 Ne5 Qd1 Ng6 hxg6 Bd7 Ra5 Bf5 Ra1 Bc8 d4 Kd7 Kd2 h5 Kc3 f5 Kb3 a5 b6 c5 b7 a4+ Ka2 a3 b8R f4 b4 h4 b5 f3 b6 f2 b7 h3 Bf4 h2 Qd3 Rh4 Bg2 f1B Nf3 Qa5 Qe4 Ra7 Nc3 Nf6 g8N Bh6 g7 Qb6 g6 Ne8 Be5 Bf4 Nh6 Nd6 g8B Bg3 Ng4 Rh8 g7 Ra8 Rg1 h1Q Bh7 Qh6 g8B Qg5 Ngh2 Ra5 Ra8 Rb5 b8Q Nb7 d6 Rb3 d5 Ke8 Bh1 Bh3 Qa7 Kf8 Qaa4 Bd7 Bg2 Ke8 Bh3 Kf8 Bg4 Ke8 Bh5+ Kf8 Bf4 Kg7 Be5+ Kh6 Ra6 Bf2 Rg4 Bh4 Rf1 Bg3 Ka1 a2 Rf4 Qb4 Rc6 Qb6 Rf8 Qf5 Ng1 Kg5 Rf2 Qg4 R2f6 Kh4 Ngf3+ Kh3 Re6 Qg5 Nb1 Rd3 Nc3 Re3 Qab4 Rd3 Kb2 a1Q+ Kb3 Qe1 Ka2 Rd1 Qf4 Rb1 Qbe4 Rb3 Qg4+
1NQB1NKB/1Np3Q1/1Rn4P/nbb2n2/3Rp3/4kBqq/PNP2b1r/R7 b - - 0 1 legal: proof: f4 d5 e4 h5 exd5 e5 g4 a5 gxh5 b5 b4 e4 bxa5 Ra6 Qf3 Re6 Qd1 Re5 fxe5 Bd6 Be2 Be7 Bf1 Bf8 Ke2 Ke7 Ke3 f5 Kd4 g5 h4 b4 e6 Kf6 h6 g4 e7 f4 e8Q Kf5 d6 b3 Kd5 b2 d4 g3 d7 g2 h5 f3 h7 f2 h6 Ba3 a6 Be7 a7 Bd6 a8R Be5 Bg5 Qe7 d8N Nd7 Nc3 b1Q Rb8 Qf6 Nh3 g1B Nf4 Bh2 Na4 Bg3 Nc6 Qg7 Bd8 Ba6 Nb2 Bd6 Bg2 f1N Ng6 Ne5 Rb6 Nc4 Bf3 Na5 Nf8 Kf4 Ke6 Bc5 d5 Ne7 d6 Ke3 d7 Bf2 Nb8 Qg3 Kf7 Rg8 h8B Nec6 Qe1+ Be2 Qc3+ Bd3 Qf6 Bb5 Qg7 Qe1 Rd1 Qh3 Rd4 Ng3 Rg1 Qc3 Ra1 Qe1 Bh4 Qc3 d8N Nf5 Nb7 Qe1 Qc8 Qc3 Qh7 Rg2 Qg7 Rh2 Kg8 Qe1 Be7 Qg1 Bh4 Qgg3 Bd8
B2R1RN1/bQ3bk1/3r2Pn/K1B2r2/P1bQ1nQ1/R2p4/1p1Pr3/1B2N1Rn b - - 0 1 legal: proof: e4 f5 exf5 b5 b4 a5 bxa5 g5 c4 c6 h4 b4 hxg5 Qc7 Ba3 Qb7 Bc1 Qb5 cxb5 Bg7 Nh3 Bh6 Ng1 Bf8 f4 Kf7 a4 h5 g4 d5 a6 e5 f6 d4 a7 e4 f5 b3 b6 e3 b7 e2 Nf3 c5 Ba3 c4 Rg1 c3 Bc5 c2 Nc3 c1R Nd5 b2 Ne7 h4 Ra3 Na6 b8Q h3 Qb7 Nh6 Ng8+ Nc7 Bg2 Rb8 a8B h2 Bh3 Bd6 g6+ Kf8 f7 h1B g5 Kg7 f8R Be6 Rd8 Bc4 Kf2 e1N Bf1 Be7 Bd3 Nd5 Bb1 Nd3+ Ke2 Rc8 Qe1 Rc6 Qf2 Rf1 Ne1 N5f4+ Kd1 Bg2 Kc2 Bgd5 Qe3 Bf7 Qe4 Rh7 f6+ Kh8 Qd5 Nf2 Qdd7 d3+ Kc3 Bf8 Kb4 Nh1 Qd4 Rd6 Ka5 Rf2 Bb4 Re2 Bc5 Be8 f7+ Bg7 f8R Bef7 Qc3 Bd4 Qcb4 Bfe6 Q4b6 Rf7 g7+ Kh7 Qb4 Rf5 Qc3 Be3 Qe5 Kg6 Qd4 Bf7 Ne7+ Kh5 g8Q Bf2 Qgg7 Be3 Ng8 Bf2 Qge5 Kg6 Qee4 Be3 Qf3 Kh7 Qg4 Kg6 Qdd5 Kg7 g6 Bf2 Bb4 Ba7 Bc5 Nh3 Qde4 Nf4 Qd4+
2R1BR2/1nK1nNb1/r6B/kB1Q3b/1pP1rQb1/1p2N2P/NPR1n3/1r1R4 b - - 0 1 illegal: Other
N1bQR1Rn/4Nbp1/n3pnP1/rbB3K1/4PN2/1P4Q1/4RrR1/1k2Q1rB b - - 1 2 illegal: No proof kernel
6r1/3k3K/R1bB2Nb/2n1np1b/rnPQ4/1R3rBB/Np1Q1P1P/3NQ2Q b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 c5 g4 h5 gxh5 Nc6 d4 Nb8 dxc5 d4 Bf4 Bh3 Bc1 Qd5 exd5 Bc8 Kd2 g5 Kd3 b5 Ke4 e5 a4 g4 c4 d3 a6 g3 a5 d2 d6 f6 d7+ Kd8 Kf5 g2 Kg6 e4 c6 e3 a7 b4 a6 f5 h6 e2 c7+ Ke7 d8Q+ Ke6 h7 e1R Qd4 b3 Ba3 Bg7 Bd6 Nf6 Ne2 g1N Bh3 Nd5 Nec3 Re4 Qe1 d1B Na2 Nb4 Nbc3 Bf3 Nd1 Rd8 h8B Rf8 Kh7 Bh6 Bhe5 Bd7 c8N Rf4 Ne7 Rg8 Ng6 Bh5 Rb1 Rf3 Bg3+ Re3 Rb2 Bc6 Qed2 Nd7 Rb1 Rad8 a8Q Nf3 a7 Nc5 Qb8 Rc3 a8Q Ne5 Qbb7 Rd3 Qa5 Ra8 Rf1 Rf3 Qe1 Nba6 Qad2 Nb4 Rg1 Ra4 Ra1 b2 Rg2 Rf4 Rg1 Bb5 Qh1 Rf3 Bf4 Rb3 Rg3 Bc6 Nac3 Raa3 Rf3 Ra6 Bg3 Kd7 Ra3 Raa8 Na2 Rd3 Ra6 Ra7 Rb6 Ra4 Ra6 Rb3 Re3 Rc3 Re2 Rf3 Re3 Ra3 Rd3 Ra4 Rb3
B6K/b3Q2b/2p4B/1n6/n2P2R1/rQ3nQ1/RPPrbp2/r1NNkQRB b - - 0 1 illegal: No possible last move, all moves rejected
1K1R1bRQ/R1N5/p1p3P1/PBPn1BNb/2R5/k2b2b1/r1N3qQ/B1n2b2 b - - 1 2 legal: proof: e4 b5 d4 f5 exf5 g5 h4 b4 hxg5 a6 c3 Ra7 cxb4 Rb7 b5 Rb6 Nd2 Rc6 Nb1 Rc5 dxc5 Bh6 Qb3 Bg7 Qd1 Bf8 Ke2 e5 Kf3 Ke7 Ke4 h5 Kd5 d6 a4 e4 f4 e3 g4 e2 b4 e1B g6 h4 f6+ Kd7 g5 h3 a5 h2 f5 Be7 f7 Qe8 f8N+ Kd8 b6 Rh4 b5 Rh3 f6 Rc3 f7 Bd2 b7 Bf4 b6 Bf5 g7 Rf3 g6 Nc6 Qd4 Rf2 Ra4 Bd3 Rc4 Ra2 Nh3 Bg3 Bb2 Ne5 Ne6+ Kd7 b8R Bf8 b7 Qd8 Rc8 Qg5 b8Q Qg4 Ba1 Qe2 Rg1 h1B+ Rg2 Qf2 Nhg5 Qc2 Qdb2 Qd2 Na3 Nf6+ Kd4 Kc6 g8B d5 Rf2 Bf3 Nc2 Bfe2 Rd8 Bh5 Rh2 Qg2 Qc3 Bhe2 Rh7 Bh5 Qd2 Bhe2 Qa8+ Kb5 Qc8 c6 Rg7 Bd6 f8R Be7 Rff7 Bf8 Ra7 Bh5 Bf7 Bhe2 Rg8 Bh5 Nb4 Ka4 Nc7 Kb3 Be2 Ka3 Bg4 Bf1 Bf5 Nd3 B7e6 Nc1 Nc2+ Kb3 Qf4 Bd3 Ke5 d4 Bf7 Nd5 Ke6 Bf1 Kd7 d3 Qa8 d2 Kc8 d1B Kb8 Bde2 B7e6 Bf2 Qh2 Bg3 Bd3 Bef3 Bef5 Be4 Be2 Bd3 Rh4 Be4 Bb5 Bed3 Rc4 Qf3 Qb7 Ra3 Ba4+ Ka2 Qb4 Qg2 Bb5 Ra4 Qc3 Ra3 Qg7 Kb3 Ne1 Ra2 Qh8 Ka3 Nc2+
5N2/N3BR2/2BQ1b1n/Q1QB4/1Nqn1K1p/nP2rR1p/2rrPNkP/1n6 b - - 0 1 illegal: Other
2B2qr1/RP2pb1R/3PP3/2kQ2n1/1n1p2B1/1K2BNn1/4N2R/Bn1r1QNr b - - 0 1 illegal: No proof kernel
2Qn1Rrq/QP1p1B1b/1b1P1p2/3NRnQN/5P1N/Rn1b1KN1/b2B4/3k4 b - - 1 2 legal: proof: b4 a5 h4 g5 hxg5 b5 bxa5 b4 c4 c6 Nf3 Qb6 Ng1 Qb5 cxb5 Bg7 Nc3 Bh6 Nb1 Bf8 e4 c5 e5 Kd8 Rh3 Ra6 Rh1 Rg6 e6 f6 Rh2 Rg7 Rh1 Rf7 exf7 Bg7 Qg4 Bh6 Qd1 Bf8 Ke2 Kc7 f4 Kd6 g4 Kd5 a4 Ke4 d4 e5 a6 h5 a5 b3 g6 b2 d5 c4 b6 h4 a7 c3 a8Q h3 a6 h2 g7 c2 d6+ Bb7 a7 Nh6 g8Q Rh7 g5 Bg7 f8R Nc6 g6 Nf5 Qc8 Rh8 a8N Nd8 Nc7 Bd5 b7 Ba2 Bd2 c1N+ Kf2 Bh6 g7 Nb3 Nf3 Bg5 Nd5 Bh4+ Kg2 Be1 Nh4 Bf2 Bc4 Bb6 Nbc3+ Kd4 Qe2 b1B Re1 e4 Qf2+ e3 Ne4 Bd3 Kf3 h1B+ Qg2 e2 Ng3 Ba7 Nh5 Bb6 Qf7 Rg8 Qg6 Bab1 Ra3 Ba2 Qh6 Bc5 Qg5 Bb6 Rg1 e1Q Rf1 Qc1 Re1 Qa1 Re5 Qe1 Nb4 Qc1 Bf7 Qc7 Nd5 Qb8 Ne3 Qa8 Nf1 Qb8 Nfg3 Qa8 Kg4 Qb8 Qgc6 Bhe4 Qb5 Qa8 Qa5 Qb8 Qa7 Qa8 Bb4 Ke3 Bd2+ Kf2 Be3+ Ke1 Bc1 Rh8 g8N Kd1 Ne7 Rg8 Bd2 Nh6+ Kh3 Bh7 Kg2 Nf5 Kf3 Nc6 Qcb8 Rg6 Nd5 Rg7 Qc7 Qe8 Rg8 Nd8 Qc8 Rg6 Rg7 Qh8 Rg8 Rg7 Rge8 Rg8 Rf8
5bKN/1P3Rn1/B3b3/2rpp1bQ/2BPB1R1/1R5P/r2qr1Qb/k1B1N1Q1 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Nc6 c3 Na7 c4 Nb5 cxb5 Ba6 Be2 Bb7 Bf1 Bc8 Ke2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 c5 d4 g5 f4 g4 a4 g3 a6 b3 h6 c4 a5 b2 h3 c3 a7 d6 b6 c2 a6 g2 h7 Qd7 Ra3 Bg7 Nc3 b1R Bc4 Qd8 Nf3 g1B Rb3 Bd7 Ne1 Bb5 Ne2 Rb8 a8B Bh2 a7 Qe7 Rg1 Qf8 Bb7 Ba6 a8B Rb2 Rg4 Ra2 Bc8 Bb5 Ba6 Bd7 Bc6 Nh6 b7 Rg8 h8Q Rc8 Qh7 Kf7 f6 Nf5 Qh4 Bh6 Qh5+ Rg6 Qd2 Ng7 f5 Bg5 Nf4 Be6+ Ke4 Qh8 Qg2 Qh6 B6d5 Rc5 Qg1 Ke8 f7+ Kd7 f8R Be7 Rf6 Bf8 Qg2 Rg5 Ng6 Kc7 Nh8 Rg6 Rd3 Kb6 Rf7 Ka5 f6 Ka4 Rb3 Qg5 Rd7 Qd2 f7 Rf6 Rc7 Rf2 Qg1 Be7 f8Q Rg2 Qf4 Bf8 Rf7 Rf2 Qfg3 Rg2 Kf3 Re2 Be4 d5 Q3g2 Ra1 Rb2 Ka3 Rb3+ Ka2 Rg6 Nf5 Kg4 Ng7+ Kh4 Bd6 Rg4 Bf8 Re3+ Kb1 Kg5 Ra2 Kg6 Ka1 Kh7 Bg3 Ba3 c1B Kg8 Bh2 Rf3 Qc3 Rfg3 Bg5 Bc1 Qd2 Rb3
1Nn2bb1/B1n1N1Nn/qPp3Q1/2PR3b/Bb5K/RR3B2/r3p2P/1Nk3Q1 b - - 0 1 legal: proof: f4 d5 e4 h5 exd5 e5 g4 a5 gxh5 b5 a4 e4 axb5 Ra6 Qe2 Re6 Qd1 Re5 fxe5 Bb4 Qe2 Ba3 Qd1 Bf8 Kf2 Kd7 Kg3 g5 c4 f5 b4 a4 d4 e3 h6 e2 b6 g4 e6+ Kd6 h7 a3 e7 a2 e8B Qf6 b7 Na6 b8N Be6 b5 Ne7 Nh3 Nc8 Ng5 f4+ Kh4 g3 Bg2 f3 Qg1 f2 Bf3 f1B Be3 g2 Bd7 Rg8 h8N Rg7 Bc6 Bg8 Ng6 Rf7 Ne7 Rg7 Qf2 g1N Be8 Qg6 Ne6 Nh3 Qg1 Ng5 Bc6 Rf7 Ng7 Nh7 Bd7 Qe6 Qg6 Bg2 Rd1 Nb4 Rd3 Na6 Rb3 Bh3 b6 Bg4 Ba4 c6 Bf2 Nc7 Bg3+ Rf4 Na6 Kd7 d6 Qd5 c5 Qc4 d5 Bh5+ Kh3 Rd4 Be5 Rd2 Nb8+ Kd8 Qg1 Qa6 Kh4 Rc2 Ngf5 Ke8 d7+ Kf7 d6 Ke6 d8R Rd2 d7 Rc2 Bb2 Rd2 Bc1 Ke5 Ng7 Rb2 Qg6 Kd4 Bf4 Rc2 Re8 Rb2 d8Q+ Kc4 Qd1 Rd2 Nc3 Kd4 Bd6 Ke3 Rd8 Rb2 Qdg1+ Kd2 Ra3 Rc2 Rb1 a1B Rbb3 Ra2 Be5+ Qd3 Bd6 Kc2 Nb1 Bc3 Be5 Ba5 Rd5 Bb4 Na6 Ne8 Bb8 Nc7 Nc3 Kd2 Ba7 Kc2 Nb8 Kd2 Q1g4 Kc1 Nb1 Qa6 Qg1+
1R5q/Rbn2P2/p2Q2N1/PR1Q2k1/2P1BN2/2nK1n1r/Bp4rn/2B1R1rQ b - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Bh6 dxe5 Bg5 hxg5 Ke7 Bf4 Kf8 Bc1 Ke8 Kd2 Ke7 e4 b5 f4 d5 a4 h5 g6 h4 c6 b4 g7 h3 c7 h2 e6 Kf6 e5+ Ke7 f6+ Ke8 f5 g3 f7+ Ke7 Nc3 b3 Bg2 d4 Nh3 b2 Kd3 Bb7 c8R Qb6 Ne2 Rh4 Nef4 Bc6 Be4 g2 Re1 Na6 Rb8 Nh6 g8Q Qd8 Rb5 h1R Qh7 Qh8 f6+ Kd8 c4 g1N Ng6 Bb7 Nhf4 Nc7 e7+ Kd7 f8R Nf3 f7 Rg1 Rb8 Rh3 e6+ Kd6 e8B Ng4 e7 Ngh2 B8c6 Rg2 e8Q a6 a5 Rg1 Bf5 Rg2 Re7 Rg1 Qf8 Rg2 Ke4 d3 Rb1 d2 Kd3 Rg1 Bce4 Rg2 Qh1 d1N Qh5 Nc3 Be3 Rgg3 Re1 Rg1 Bc1 Rg2 Ke3 Rg1 Bb1 Rg2 Ba2 Rg1 Be4 Rg2 Nd5 Rg1 Rd7+ Ke6 Ndf4+ Kf6 Qd5 Rg2 Kd3 Rg1 Bf5 Kg5 Qfd6 Rg2 Rf8 Re8 Be4+ Re5 Ra8 Rf5 Rdd8 Rg1 Rdb8 Re5 Bf5 Re2 Ra7 Reg2 Be4+
n3K1Q1/4NN2/2p1pk2/P2Rb1b1/1RPQP1B1/Bb1RB3/2n1n2r/b2Rq2N b - - 1 2 illegal: No proof kernel
2b3k1/1Rr1r3/1q4B1/rp2Nn1Q/P1prN3/1P2BP1B/3n1NKQ/2NnRQ2 b - - 0 1 illegal: No proof kernel
2R2nnb/Nb1R2BQ/1Q4pp/1BB1Q1Nn/R1PK4/1R4P1/2P1bk1r/4qb2 b - - 0 1 legal: proof: h4 c5 a4 e5 f4 b5 fxe5 a5 axb5 f6 h5 c4 d3 g6 dxc4 Ra6 h6 Re6 Nd2 Re7 Nb1 Rg7 hxg7 Ba3 Kf2 Bd6 Ke1 Bf8 Kf2 Ke7 Ke3 Ke6 b4 Kf5 e6 Kg4 e7 Kg3 e8Q d5 b6 a4 b7 h6 b5 a3 b6 a2 Na3 f5 Kd4 f4 e4 f3 e5 f2 e6 Qe7 Bb2 Qd6 e7 Na6 b8R Bb7 Qb1 Nb4 Nb5 Nd3 Nf3 Nf4 Ng5 Qb4 Na7 Qe1 Qf7 Nh5 e8Q Be7 Bc3 Bf6+ Qe5+ Nf4 Be2 f1B Bg4 Kf2 g3 Nh5 Bd7 Rh7 Qb2 Rh8 Rd1 a1N Bb5 Rh7 Rd3 Rh8 Rd8 Rh7 Rd7 Rh8 Kc5 d4 Bb4 Rh7 Rb3 d3 Kd4 d2 Bc5 d1B Rg1 Bde2 Rh1 Ne7 g8R Rg7 Rf8 Ng8 Rc8 Rh7 Qe7 Rf7 Qb1 Rf8 Qh7 Bh8 Qb2 Bbf3 b7 Rf7 b8B Bb7 Rg1 Rf6 Qe4 Rf4+ Be5 Rh4 Bg7 Rh3 Ra3 Rh2 Ra4 Nb3+ Ke5+ Nd4 Qc6 Nhf6 Qb6 Nh5 Rh1 Kg2 Qc3 Ne6 Qb2 Nf8 Kd4 Kf2 Qc3 Bfg2 Rg1 Qa1 Rb1 Bgf1 Rb3 Qe1 Qe3+ Kg2 Qee6 Kf2 Qe5
1R1r3b/1P3Q2/k1pR2P1/1r4Qp/N1R1NKB1/n1Pb2Br/2b1q2B/2RQb3 b - - 0 1 legal: proof: f4 e5 d4 g5 dxe5 b5 fxg5 b4 h4 b3 axb3 Bb7 b4 Ba6 b5 Bc8 g4 Ne7 h5 Bh6 g6 Ng8 g5 Bf8 g7 Nc6 Ra6 Nce7 Ra1 Ng6 hxg6 Qe7 Rh2 Qf6 Rh1 Qd8 Kd2 f5 Ke3 d5 b4 Kd7 e6+ Kd6 b6 Kc6 b5+ Kb7 e7 a5 e8Q h5 Ra4 d4+ Kf4 d3 e4 c6 e5 d2 e6 Qd3 e7 Rb8 Rc4 a4 Be2 a3 Nc3 a2 Ne4 a1B Bg4 Qe2 Qf7 Nf6 g8R Nd7 e8R Bb4 g7 Bf6 g6 Bd4 Qd5 Ne5 Re6 Bd7 Rc8 Rd8 g8Q Bbc3 Qh7 Bf2 Ba3 Be1 Rd6 Bb2 Qhf7 Bc3 Qc1 d1R Qa1 Rd4 Qd1 Rd3 Bc5 Rh3 Bf2 Bd4 Bg3 Bb2 Nc3 Ba1 Na4 Bd4 Nf3 Bb2 Rc5 Nc4 Ng5 Na3 Rc4 Bbc3 Ne4 Bh8 Kg5 f4 c3 f3 Kf4 f2 Qg5 f1B Rg1 Ka8 b7+ Ka7 b6+ Ka6 Bh2 Bf5 Rh1 Ra8 b8B Ra7 Rg1 Re7 b7 Re5 Bc7 Rd5 Rb8 Rb5 Ng3 Bc2 Ne4 Rd3 Bb6 Rg3 Bf2 Rh3 Bh4 Qg2 B4g3 Bfd3 Rf1 Qe2 Qd2 Bf2 Rc1 Be1 Qd1
4n1q1/N2n2p1/4QPPr/B1RNb1Rq/3rrN2/1r1p3P/Q3N1Q1/k2BB2K b - - 0 1 illegal: No proof kernel
2q2q1R/N1R5/1PBnq1N1/1p1k2B1/rPr3b1/1PQ3QN/R1N1p3/n1q3QK b - - 0 1 illegal: No proof kernel
2Q3bb/nn1rkq2/2P1b3/RBp1R1q1/N6p/1NPB3b/BBK3RP/N3Q3 b - - 0 2 legal: proof: d4 c5 a4 b5 axb5 g5 b4 e5 dxe5 a5 f4 Ra7 fxg5 Nh6 b6 Rc7 b5 Rc6 bxc6 Ng8 Kd2 h5 e4 d5 g4 f5 e6 a4 c3 a3 e7 h4 g6 a2 b7 f4 g5 f3 g7 d4 g6 f2 e5 d3 Ne2 Rh5 Na3 Rg5 Nc2 Bd7 Qe1 Rg3 Ned4 Nf6 g8Q Na6 b8N Nc7 g7 Nb5 Rg1 Na7 Bb2 Ne4+ Kc1 Rg6 Rg2 d2+ Kd1 Bf5 Nd7 Rd6 Nb6 Rd7 Bb5 Nd6 Qh8 Bh7 g8B Nb7 Bgc4 Bf5 Bd3 Kf7 e8R Qg5 Re6 Bg7 Qc8 Bh8 Re8 Bh7 e6+ Kf6 e7 f1B Re2 Bh3 Rg8 Qf5 Rgg2 Qg5 e8B Bg8 Re4 Nd8 Bf7 Nb7 Be6 Ke7 Re5 Qg6 Rb1 a1Q Rc1 Qa4 Ra1 Qb3 Ra5 Qg5 Na4 Qa2 Na1 Qc4 Kc2 d1B+ Kb1 Bdg4 Kc2 Qa2 Rf5 Qd5 Re5 Qf3 Ba2+ B4e6 Ndb3 Qf2+ Be2 Qf7 Bed3
BbR1b3/PQ1RR1K1/q7/3q1NN1/1qQ1p2p/q2QN1P1/nrQ2rkP/B7 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 e4 Ra7 d4 Qd6 e5 Qd8 d6 Ra8 d5 Bh6 Bb2 Kf8 Bc1 Kg7 e6 Nd7 exd7 Kg6 Bd2 Bg7 Bc1 Bf8 Ke2 Kh5 Ke3+ Kh4 Kf4 c5 Kf5 h5 a4 e5 a6 b5 g6 b4 a5 f6 a7 c4 a6 b3 g7 b2 Kg6 f5 Nc3 b1Q Bb2 f4+ Qc2 f3 g3+ Kg4 Nd1 h4 Bg2 c3 Nh3 f2 Re1 f1Q Ng5 Qc7 d8N Bd7 Nc6 Qd8 Nd4 Nf6 g8Q Rb8 a8Q Ne4 a7 Qa6 Nf5 Be8+ Qf7 Bg7 Qb7 Rf8 Re2 Bf6 d7 Be7+ Kg7 Bd6 Ra4 Bc7 Ba1 Qb4 Qg8 Rf6 d6 Rf8 Qd3 c2 Qgc4 c1Q Qdc2 Qca3 Ra5 Rf6 Rc5 Rf8 Qc8 Rb5 Qb7 Bb8 Rc8 Qda5 d8Q Rb6 d7 Qd5 Q4d3 Nc3 Qdc7 Na2 d8R Rb5 Rd7 Rb6 Nd4 Rf2 Q7c4 Rb5 Be4 Rb6 Nf5 Rb5 Nf3 Kh3 Re3 Kg2 Re1 Qd4 Bc6 Qd5 Ng5 Qbc3 Re3 Rb2 Re4 Qcb4 Nde3+ Kh1 Rd4 e4 Re7 Qdc5 Rdd7 Qd5 Qbb5 Kg1 Ba8 Kh1 Qb7 Kg1 Ng4 Kg2 Nge3+
3q1kB1/Bb3p2/3B1qp1/n1B2P2/Q1b2bP1/1r2NN1b/K1QrNPQ1/1R2R3 b - - 0 2 illegal: No possible last move, all moves rejected
3Q4/B1nnPPb1/2KN1rQk/1n1Rp1rp/n3R2q/3RP2N/B1B5/5BqQ b - - 0 1 illegal: No proof kernel
kNqQrqBn/1q2PbqB/pnR5/2Q1R1r1/PN4N1/7p/2Q3P1/4KBB1 b - - 0 1 legal: proof: h4 c5 b4 e5 bxc5 g5 f4 Bd6 d4 Kf8 dxe5 Qe7 fxg5 Qf6 g6 Be7 Rh2 Ke8 Rh3 Qb6 Rh1 Bg5 hxg5 Qd8 a4 b5 e4 d5 c4 Kd7 e6+ Kc7 c6 h5 g7 f5 e5 a6 g6 f4 e7 b4 e8N+ Kb6 c7 Ka7 e6 b3 e7 h4 c5 f3 c6 d4 Nf6 d3 Na3 h3 Ng4 b2 Ne2 b1Q Nd4 Nd7 Be3 Nb6 Nac2 Nh6 g8B Nf7 g7 Rh5 Bg1 Rg5 Bh7 Be6 g8B Nh8 c8Q Bf7 c7 Qe8 Qf5 Qc8 Qc5 Qb3 Nb4 d2+ Kf2 Qb2 Qdc2 d1Q Rc1 Kb7 Ndc6 Qdd4+ Ke1 Qg7 Nb8 f2+ Kd2 Qb3 Re1 Ka7 Re5 Qd5+ Ke2 Qdb7 Kd1 Qe8 c8Q Qef8 Bc4 f1Q+ Kd2 Qf4+ Ke1 Qf5 Bf1 Qe6 Qd8 Qc4 Nd7 Rc8 Nb8 Ka8 Qdd1 Re8 Qd8 Qc3+ Kf2 Bg6+ Qf5 Qh6 Qcd6 Qcc6 Bb5 Bh5 Bh2 Qfg7 Rc1 Qe6 Ke1 Qbc8 Bg1 Q6b7 Rc6 Qef7 Bf1 Qff8 Qc2 Bf7 Qdc5
1qR1r1k1/BRQ1RBP1/n1Bp4/2r2R2/4qb2/Q1NPP3/1K2p3/r2N1Nnr b - - 0 1 illegal: No proof kernel
NNR5/2bp1kr1/1qp2N2/q6B/1PN4B/1rP1n1rP/r4QR1/QB1b2QK b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba3 Qd4 Bc5 Qd1 Bf8 f4 Ke7 e4 Qe8 e6 Kf6 e7 Ke6 e5 Qd8 Kf2 Nc6 Ke1 Nd4 f5+ Kd5 Bd3 Kc5 Bf1 Ne6 fxe6 Kb4 Ke2 Kc4 Ke1+ Kc5 Kf2 a5 Kg2 f5 e8B g5 b4+ Kb6 e7 c6 e6 Kc7 h3 f4 h6 g4 h7 a4 Bh5 a3 e8Q g3 e7 a2 Na3 Nh6 Qf7 Ra5 Bd3 Kd6 b6 Rg8 h8Q Ng4 b7 Qb6 b8N Rg7 Rh2 f3+ Kh1 f2 Ne2 Ne3 Nc3 Ba6 Qg1 f1R Rg2 Rf3 e8N+ Ke5 Bb2 Bd6 Nf6 Bc7 Ncd5+ Kd6 Qff8+ Ke6 Nc4 Ra3 Rf1 a1Q Bc3 Ra4 Be1 Ra2 Bh7 Bb5 c3 Ba4 Bb1 Bd1 Qh7 Rff2 Qc2 Re2 Qa4 Reb2 Bf2 Rb3 Qa8 Qa5 Ndb6 Qb2 Qa7 Qba3 Na8 Qb6 Qc5 Qaa5 Be1 Qab5 Qa3 Q5a5 Qf5+ Ke7 Qff2 Ke6 Qab2 Ke7 Qa1 Ke6 Be2 Kf7 Bh5+ Kf8 Qc2 Nd5 Qe3 Rbb2 Ne8+ Nf4 Rgg1 Rb3 Bf2 Kg8 Re1 Nd5 Nf6+ Kf8 Qf5 Rd2 Qeg5 Ra2 Re6 Ne3 Re7 Rg6 Re8+ Kg7 Qff4 Kf7 Rc8 g2+ Kh2 Ke7 Bh4 Rg7 Qgg3 Ke6 Qff2 Ke7 Rf1 g1R Re1 Rg2+ Kh1 Ke6 Rg1 Ke7 Qh2 R2g3 Rg2 Ke6 Qhg1 Ke7 Bg4 Kf7 Bh5+
N4n1r/1B1p1Q2/r1p1P3/2bqN1NQ/N2R3r/1nPBQq1r/2KP4/R3B1k1 b - - 1 2 legal: proof: g4 e5 f4 b5 fxe5 g5 a4 f5 axb5 Bb7 h3 Bf3 gxf5 g4 Ra4 g3 Ra1 Bg4 hxg4 Bg7 Na3 Bh6 Nb1 Bf8 b4 Ke7 e4 a5 g5 h5 e6 Kd6 f6 Ke5 b6 Kd4 e5 h4 b5 h3 f7 a4 g6 g2 e7 a3 e8N h2 g7 a2 b7 Ne7 g8B Ra6 b6 Nc8 Nh3 g1Q Nc3 Be7 f8Q Rh6 Qf7 Rg6 Bb2 Rg2 Na4+ Ke4 Bd4 Bc5 c3 Qf6 Bf2 Nc6 b8N Rg3 b7 Qg2 Qdh5 Nd4 Kd1 Nb3 Nc6 Ne7 b8Q Qff3+ Kc2 Ng6 Qa7 Nf8 Be1 Rg4 e6 Rh4 Ne5 c6 Nc7 Qg5 Rg1 h1R Bh7+ Qgf5 Ng5+ Kf4+ Kb2 R1h3 Na8 Qd5 Rg2 Qf3 Rf2 Kg3 Qb6 Qd5 Rf4+ Kh2 Rd4 Qff3 Bhd3 Kh1 Kc2 Kg1 Rb1 a1R Rd1 Ra3 Ra1 Ra5 Ba6 Rb5 Qa7 Rb8 Bb7 Re8 Bd3 Ra2+ Nb2 Ra6 Na4 Nh7 Qb8 Rh8 Qbg8 Nf8 Qgh7 Ba7 Qe4 Bc5 Qe3+
R1n1KB2/N3B3/n2q3N/p2R2p1/2PQB1QN/4k2r/Pb4PR/n1rnqR2 b - - 1 2 legal: proof: e4 c5 h4 d5 h5 f5 exf5 g5 c3 c4 b3 d4 bxc4 Be6 cxd4 Bf7 Ba3 Qd5 Bc1 Bg6 hxg6 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 b5 f4 a5 g7 h5 d5 Kc5 Ke5 h4 Ke6 Kd4 Kf7 e5 d6 e4 d7 e3 f6 h3 f5 e2 Nf3+ Ke4 d4 e1N d5 h2 d6 b4 Na3 b3 Nb5 b2 Na7 b1N Ba3 Qb6 d8Q Be7 d7 Rh6 Bd3+ Kf4 Be4 Ke3 Ke8 Na6 f7 Qd6 f8R Nc3 f6 Rh3 f7 Nc2 Nh4 Rb8 Qg4 Bf6 Raf1 Ne7 g8N Nc8 Nh6 Rb1 Qb6+ Bd4 d8R Rc1 Rg8 Nd1 f8B Na1 Qc5 Qf4 Rd5 Qd6 Qb6 Qe6+ Bae7 Qd6 Rhg1 h1Q Qc5 Qhh2 Rh1 Qhg3 Rh2 Qe1 Qb6 Bc5 Qb2 Ba3 Qh8 Bb2 Qg7 Rf3 Qd4+ Ke2 Bg7 Nb6 Rh8 Qc6+ Kd8 Qf6 Qe5 Ke3 Re8 Rh3 Bf8 Nc8 Kd7 Nd6 Ra8 Nc8 Ke8 Qd6 Qd4+
1B1nqrn1/Q2p1nn1/1PRQ2k1/1N1b1Bb1/q4pR1/1QNPNB1P/4Q3/7K b - - 0 1 legal: proof: g4 e5 a4 b5 b4 a5 c4 h5 gxh5 e4 c5 e3 c6 Be7 fxe3 Ba6 e4 Bb7 axb5 a4 b6 Bc8 b5 Ra7 e5 Rb7 cxb7 Bf8 Kf2 g5 Kg2 c5 e4 f5 h3 Kf7 e6+ Kg7 d3 g4 h6+ Kg6 e7 a3 e8B+ Kf6 e5+ Ke6 h7 a2 Nd2 c4 Qe2 g3 Bf7+ Ke7 e6 Kf6 e7 c3 e8N+ Kg5 Nc7 c2 Be6 Qe8 Nc4+ Kg6 Bf4 c1N Ne3 Nb3 Rc1 a1Q Rc6 Na6 b8Q Nbc5 b7 Bh6 b6 Qa4 Nb5 Nc7 Qa7 Bg5 b8Q Nb7 Rh2 Nd8 Kh1 Bb7 Bg2 Ba8 Bf3 Bb7 Be5 f4 Rg2 Ba8 Rc5 Bd5 Rc6 Qe7 Bd6 Ne8 Bc7 Ng7 Be5 Nh6 Qd6 Rf8 h8Q Qe8 Qg8 Rf7 Qgf8 Ng8 Qb4 Rf6 Bb8 Rf5 Qfd6 Rf8 Qf1 Bh6 Ne2 Bg5 Rg1 g2+ Kh2 Kh6 Nec3 Kh7 Qe2 Kg6 Ra1 g1N Kh1 Nf5 Qb3 Ng7 Bg2 Nf3 Rg1 Ne5 Bf3 Nef7 Rg3 Qa2 Rg4 Qa4 Bf5+
b4qn1/1pBP1BB1/N1k1P1N1/2b3K1/2Nn4/QP1R4/qp2nR2/Q1n1r1QN b - - 0 1 illegal: Other
2r1nN1K/1q2p1NN/Q2PbBpR/RQQ1qk2/2q4n/1RbR4/2BqP2P/8 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 Qd7 a4 Qd6 axb5 Qd8 f4 h5 gxh5 a5 f5 Ra7 Ra3 Ra6 Ra1 Rah6 f6 g6 Nc3 R6h7 Nb1 Rg7 fxg7 Be6 Nf3 Bf5 Ng1 Bc8 Kf2 Kd7 Kg3 c5 Kg4 f5+ Kg5 a4 d4 f4 b4 f3 d6 Ke6 b6 a3 d7 f2 h6 a2 b7 c4 b5 c3 b6 c2 d5+ Ke5 d6 Qe8 d8N Be6 h7 Qc6 Nc3 Bb3 Nh3 Bf7 Nd5 Be6 Ndf4 Qd7 Qd3 Bf7 Bg2 f1Q Be4 Qe8 Nh5 Bd5 Ne6 Qe1 Bb2+ Qc3 Rhd1 Na6 b8Q Nh6 g8Q Qc8 b7 Nb4 Qa6 Qc5 Rd3 Bg7 Qgc8 Qc6 Nf8 Be6 Bf5 Qb5 Qc5+ Nd5 Qe8 Qb3 b8R Qb7 Qeb5 Rg8 Be4 Nf5 h8R Nh4 Rh7 Bf6+ Kh6 c1Q+ Ng5 Qd2 Rh8 Qd4 Kh7 Bg7 Bf3 Kf5 Be4+ Kg4 Bc3 Qc4 Bf6 Nc7 Ra3 Bc8 Bc2 Be6 Rd1 a1Q Ra5 Qe3 Rd5 Ne8 Rd3 Qae5 Qb3 Kf5 Nd7 Qed5 Be5 Qbb4 Qa4 Qe1 Rbb3 Q1d2 Q4b5 Nc7 Bd4 Rc8 Nf8 Ne8 Bb2 Bc3 Ba1 Bb4 Bf6 Nc7 Kg7 Bc3 Rh6 Qee5 Ngh7 Qb7 Kh8 Ne8 Ng7+
1r4b1/PrR2RN1/n2b3p/4rB1P/k2p1rB1/QN2Pn2/1n2QBKN/2N1Q3 b - - 0 1 legal: proof: f4 a5 g4 f5 b4 c5 bxa5 e5 fxe5 f4 d4 Qf6 dxc5 Qf5 gxf5 Bd6 Bd2 Be7 Bc1 Bf8 Kf2 g5 a4 d5 c4 Kd7 h4 Kc6 a6 b5 h5 d4 e6 f3 a5 h6 e7 b4 e8N g4 f6 b3 a7 b2 f7 Bb7 a6 Bg7 f8N Be5 Ne6 Nf6 Nf4 Nd5 Qe1 Nb6 Ng7 Rd8 Nd3 N8d7 Be3 Re8 Nd2 b1R Nb3 Nf8 Bh3 Na4 Ndc1 Rab8 a8Q Nc3 a7 Kc7 c6 Kb6 c7 Re6 c8B Na4 c5+ Kb5 c6 Bd6 c7 Re5 Bf5 Ne6 c8Q g3+ Kf1 f2 Bhg4 Nc7 Nf3 Bc6 Kg2 f1R Bf2 Na6 e3 Bd5 Rh3 Be6 Nh2 Bg8 Qf3 Nb2 Ra4 Rb7 Rc4 Rb8 Rc6 Ka4 Rc7 Rb7 Qfe2 Rb8 Kf3 g2 Qf8 g1N+ Kg2 Rb7 Rf3 Rb8 Bc8 Rb7 Rff7 Nf3 Bcf5 Nd2 Bg3 Rf4 Bf2 Nf3 Qa8 Rb8 Qd5 Nd1 Qc5 Rb2 Na1 R2b7 Nab3 Nb2 Qa3+
3R2BR/2PrBnN1/2R3p1/2b2pPb/N6Q/2P1b1nr/2N2n1k/1K2bRQB b - - 0 1 illegal: No possible last move
b1r1n1RQ/1B6/1N1P2b1/1rNp1b2/1p1n1RRK/2QP2B1/3Prbk1/1R1B1N2 b - - 0 1 illegal: No proof kernel
r1B1BbR1/Q3p3/p1b1nN2/N3kN2/rnP3NB/P1b1KPn1/1n4R1/QQ6 b - - 0 1 legal: proof: g4 c5 h4 g5 b4 d5 bxc5 f5 gxf5 g4 e4 Qb6 exd5 Qb2 Bg2 Qg7 Bf1 Qg5 hxg5 Kd7 Bd3 Kd8 Bf1 Ke8 Ke2 Kd7 d4 b5 d6 h5 a3 b4 f3 a6 f6 Ke6 c6 h4 g6 b3 f7 g3 d5+ Kf5 c7 b2 g7 h3 d7 g2 d8N h2 d6 Ra7 d7 Ke5 Nh3 g1B Bg5 Rh4 Ra2 Bc5 Nf2 Bd4 Nc3 b1N Nc6+ Kd6 d8Q+ Ke6 Nd5 Bc3 Ne3 Be1 Na5 Rb4 Nf5 Ra4 Rg1 h1N Ng4 Nc6 Bh4 Bb4 Q8d4 Bb7 Ke3 Nc3 Qa1 Nf6 g8N Ng3 c8B+ Nd7 Bb5 Ra8 Qa7 Kd5 Qb1 Nc5 Rb2 Ne6 Ra2 Ne5 Be8 Bc6 Rb2 Na2 c3 Nd7 Rbg2 Ne5 Qa1 Nd3 Qb1 Bg7 f8Q Nb2 Qf6 Bf8 Qb7 Kc5 c4 Be1 Qc3 Nb4 Qcc1 Bc3 N8f6 Bd5 Qa1 Be4 Qcb1 Bc6 Nd4 Kd6 Qa7 Bb5 Nh6 Ke5 Ndf5 Nh1 Rg8 Bc6 R1g2 Ng3 Nhg4#
4k3/B3R2r/2n2Bbp/2P1RP1N/B2pb3/Q5bQ/r1bnNN1P/rQN3K1 b - - 0 1 illegal: No possible last move, all moves rejected
1N1R1NB1/2pN2r1/B2p1BP1/1r1Q1NbQ/3nbb1Q/1bn5/1nPR1P2/1k4K1 b - - 0 1 legal: proof: g4 b5 h4 g5 a4 f5 axb5 e5 gxf5 g4 d4 Bg7 dxe5 Qg5 hxg5 Bf8 e4 Ke7 b4 h5 f6+ Ke6 f7 a5 b6 a4 b5 h4 b7 a3 b6 d6 Nc3 a2 Nd5 g3 Ne3 h3 Nf3 h2 Bb2 Nc6 b8Q g2 b7 Rh5 Ba6 g1N Kf1 Na5 Qd4 Ne7 Rd1 a1B Rd2 Bd7 Qd8 Bh6 g6 Rc8 b8N Ba4 Qh8 Nec6 Qg8 Ke7 e6 Ne2 Ne5 Kf6 e7 Bb3 e8Q Nc4 Qd7 Re8 Qg4 Re7 Kg2 Rf5 Re1 Ke6 Qh5 Bg5 f8N+ Kf6 Bc3 h1B+ Kh2 Rg7 Ned7+ Ke7 Bb2 Rb5 e5 Bg2 e6 Bd5 Ne5 Kf6 e7 Bh1 Qdh4 Bf3 N3g4+ Kf5 e8B Ke4 Ned7 Bg2 Bf6 Be5+ Qg3 Bef4 Bf7 Bh1 Kh3 Bf3 Qgh4 Bh1 Be6 Kf3 Bf7 Nc3 Re8 Nd4 Rd8 Nb2 Bc4 Be3 Kh2 Bef4+ Kg1 Bg2 Rd3+ Ke2 Rd2+ Ke1 Nh6 Be4 Re2+ Kd1 Nf5 Kc1 Rd2 Kb1 Qe6 Bf3 Qe4 Bg2 Bg8 Bh1 Qb7 Be4 Qd5
B2KQBB1/2rRN2Q/7b/1N3p2/PpRrnB2/qP2rn2/Q1Pb2p1/k6N b - - 0 1 illegal: No possible last move
Qq1N4/2bN1R1b/Bn6/Q1brp3/2R3kP/P1n1pN2/1K2prP1/1NQ1B2R b - - 0 1 illegal: Other
N7/3KN2Q/1b1nRPB1/p4Pn1/1rN1rNQ1/B1p2BpR/2k1b1Pn/1q1R4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 g4 c4 Qd6 cxd5 Qa6 Ne2 Qh6 Ng1 Qg5 hxg5 Bb7 Nh3 Ba6 Ng1 Bc8 f6 Kf7 Ke2 Kg6 Ke3 Kf5 Kd4 a5 Kc5 Ke4 f4 e5+ d6 h5 d4 h4 b4 g3 g6 c6 g7 h3 d5 h2 b6 Ra7 f5 Be7 b5 Rc7 b7 Bd8 d7 Na6+ Kd6 c5 b8Q c4 b6 c3 b7 Ne7 g8B Nb4 Bh7 Rc5 Ne2 Nec6 Qa7 Ne7 b8N Rc4 Bg6 Ba6 Nd2+ Kd3 Ba3 e4 Nc6 Bb6 d8N e3 Ne6 Rhh4 Nc7 Nc2 Na8 Ne1 Ke6 Bb5 d6 Nf3 d7 Rb4 d8R+ Rhd4 Qb7 Nc8 Qh7 Nd6 Re8 Re4+ Kd7 Ng5 Re6 Ba6 Ne7 Bc4 Qe1 Kc2 Nf4 e2 Qf2 e1N Qe2 Bd3 Qg4 Nef3 Be2 Bc4 Rhe1 Bd3 Nc4 h1Q Rf1 Nd2 Rg1 Nf1 Bf3 Be2 Rb1 Qh2 Rh1 Qg1 Rh3 Nh2 Ra1 Qc1 Rb1 Qb2 Re1 Qb1 Rd1
bBR2Q2/4N3/2p2RB1/1PPqQ3/Q1pP1bpR/1r2r2N/N4n1R/2b2Knk b - - 0 1 illegal: Other
2K1RNbB/2b2r2/1Pr1QQ1p/k1p4P/Q3N3/nnqN1P1B/R2p1Q1B/1n6 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 g4 Ng8 gxf5 Be7 Bg2 Ba3 Bf1 Bf8 c4 Nc6 b4 Bc5 b6 Ba6 b5 Bf8 c5 Bc8 b7 Qf6 Qc2 Nb8 Qd1 Qb6 cxb6 Ke7 Bg5+ Kf7 Bc1 Ke8 Kd2 Kd8 Kd3 a5 Kc4 g5 Kd5 c5 h4 d6 e4 h6 f3 g4 h5 a4 e6 g3 e5 g2 f6 a3 f7 a2 e7+ Kd7 Qe2 Rh7 Nc3 Ra7 Ne4 Ra6 Qf2 Nc6 b8Q Na7 b7 Rc6 b6 Nb5 Nh3 g1Q Nf4 Qg7 Bb2 Na3 Nd3 Qh8 Re1 a1N Rh2 Nb3 Qa7 Bg7 b8B+ Bb7 f8N+ Kc8 Ke6 d5+ Bd6 d4 Re2 Nf6 Qa4 Nd5 Bh3 Nc3 Ba1 Ba8 e8Q+ Kb7 Kd7 Ncb1 e6 Be5+ e7 Rf7 Qd8 Bf4 Bb8 Bc7 Ra2 Qe5 Rh1 Qg7 Re1 Qf6 Qc4 Qg7 Qe6 Ka6 Kc8 Ka5 e8Q Qh8 Qdf6 Qg7 Ne5 d3 Q8d7 d2 Nd3 Qg3 Re3 Qe5 Bb2 Qc3 Qdd4 Ka6 Qa4+ Qa5 Ng3 Rg7 Qff4 Rd6 Qee4 Bd8 Ne6 Bd5 Nf8 Bg8 Qef5 Rdg6 Re8 Rf7 Bh8 Re6 Bbe5 Bc7 Ne4 Rd6 Qe6 Rc6 Qad4 Qb4 Qff6 Qc3 Bh2 Ka5 Qa4+
2r1q3/n3kB2/RpPRB1R1/r1BbP3/bN1KQ2N/3p4/pP1R3n/2Q1n2N b - - 0 1 illegal: No extended proof kernel
1Q1N4/Q1R4n/P1K1nppb/Pr5B/1N4Qq/1NkN3r/2P1B1rp/2B1Rb2 b - - 0 1 illegal: No proof kernel
Q5bn/R1r3QR/p2q3P/bN4KR/2N4n/1r1kP1Bp/1P1pr3/3Q1QNB b - - 0 1 illegal: No proof kernel
N1r2Nn1/1B3N1P/2p2Br1/2R1nk2/4B3/3PppB1/rRq1bQPb/2Q1KQ2 b - - 0 1 illegal: No proof kernel
rB6/1N1qr1PK/2B4B/R2QNn1N/1p1R1P1R/2kpB2Q/5Pp1/1n2bb1n b - - 0 1 illegal: No proof kernel
5k2/KbQB1Bpn/2r5/2P1nN2/P2rN1BR/1b3pb1/NB2pP2/QRQ3q1 b - - 0 1 legal: proof: e4 a5 b4 d5 exd5 c5 bxa5 h5 g4 c4 gxh5 c3 dxc3 Bg4 c4 Be6 c5 Bc8 Ke2 f5 Kd3 e5 Kc4 f4 Kb5 f3 c4 e4 h4 b6 a4 e3 h6 e2 a6 Bd6 c6 Bg4 c5 Nd7 a7 Bf4 Ka6 b5 h5 b4 c7 b3 c8B b2 h7 Bd2 d6 Ngf6 h6 Bg5 Rh4 Bf5 Bh3 Bf4 Nc3 b1B Bg4 Bg3 Na2 Rg8 h8N Be5 h7 Bg6 Bb2 Nd5 Qc1 Bgf5 Nh3 Nf8 Ng5 Ne7 Nhf7 Bbc2 h8Q Bb3 Nh6 Bg3 Rb1 Nc6 Ne4 Nh7 d7+ Kf8 Kb7 Bfe6 Nf5 Qg5 Kb6 Bf7 d8Q+ Be8 Bd7 Rc8 a8B Ne5 Kb7 Rc6 Qc7 Bef7 Ka7 Bfd5 Qc3 Qc1 Bb7 Qg1 Qc1 Bdc4 Bbc8 Ba6 Be8 Bb7 Bcd7 Ng5 Qh7 Rh8 Qg6 Rh6 Qh7 Rhd6 Bf7 Rd1 Qh6 Rd4 Qc3 Nh7 Qhc1 Ba8 Ba3 Bb7 Qa1 Rd3 Bb2 Rd1 Bh3 Rd4 Bg4
2kB2n1/Rq3p1P/3br3/5Pr1/b6p/N2R1p1P/1NQ1nBN1/K2NQQrB b - - 0 1 illegal: Other
1R4R1/4pnP1/Rp2qknN/1K1PB3/B1Q2r2/2p1PB1R/1Q1bb2N/n2Q1r2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 d4 f5 Kd2 Kf7 Kc3 c5 Kc4 b6 a4 f4 h4 f3 a6 f2 a7 Rh6 a5 Rh7 e3 Bg4 g6+ Kg7 a6 Nc6 h6+ Kf6 d6 Ne5+ Kb5 c4 h5 Ke6 d7 Nf6 Nd2 Bf5 Nb3 Bd3 Bb2 Nfg4 Nf3 Qc7 d8R Bc2 Rb8 Rf7 h7 Kf5 h8R Bh6 Rh3 Bg7 h6 Nc6 h7 Qd6 Nh2 Kf6 Rhg8 Nge5 h8Q Qe6 d5 Rf8 Be2 f1N Nd4 Bd3 Bf3 Nf7 Nf5+ Nce5 Nh6 Nd2 Ra4 Be2 Ra5 Kg5 Bc3 Bf6 g7 Ng6 Be5 Nb3 Qh7 Nh4 Qhb1 Na1 Qb2 Kg6 Re8 Rc8 a8Q Kg5 a7 Ng6 Ra6 c3+ Qd3 Rc4 Rb8 Re4 Qc6 Rf4 Bd6 Be5 a8B Kf6 Bc7 Bd6 Qcc4 Bb4 Qd1 Ba3 Qbb3 Bc1 Qb2 Bd2 Bc6 Rg4 Kb4 Rg1 Ba4 Rh1 Kb5 Rf1 Qd3 Rc8 Bf4 Rc4 Bd6 Rd4 Qc4 Rf4 Be5+
brR2qRB/kQ1PNB2/5BBp/4P2P/2nN4/1p1bp2r/2N1b2n/1KQ2Q2 b - - 0 1 illegal: No proof kernel
1b1Q3r/B2p4/3QBnR1/pR1PpR2/K1brk3/P1rQ2n1/N1P2B2/4Nq1R b - - 0 1 legal: proof: e4 b5 g4 h5 gxh5 f5 exf5 c5 b3 c4 bxc4 Nc6 cxb5 Nb8 b6 Rh6 Qf3 Rh7 Qd1 Rh8 f4 Kf7 h4 Kf6 d4 g5 Kd2 a5 Kc3 e5 Kb3 g4 a3 g3 h6 g2 h5 Qe8 d5 Rh7 b7 Ra7 Nf3 g1R Bh3 Bg7 Nc3 Bh8 Na2 Nc6 b8B Rg2 Rb1 Ra8 Ka4 Rg4 Ne1 Bb7 Ba7 Re7 h7 Qg6 h6 Rae8 Qd3 Nd4 Be3 Ba6 Bf2 Bg7 h8Q Ne2 h7 Rc8 Rg1 Rc3 Rb2 Nh6 Qd8 Ng8 h8R Bc4 Rh1 Rh4 Rh6 Bf8 Rb1 Kf7 Rb8 Qg2 f6 Qf1 f5 Rd4 Rb5 Ng3 Rg6 Re8 Bg4 Bd6 Bh3 Kf8 f7 Bc7 Qb8 Ke7 f8R Rd8 Qc8 Bb8 Bg4 Re4 f6+ Kd6 f7+ Ke7 Bh3 Rd4 Qc7 Rc8 Be6 Re8 Rg4 Kf6 Qd6 Rd8 Rf4+ Kg5 Rf5+ Kg4 Re8 Nf6 f8Q Rc8 Qfe7 Rd8 Reh8 Rc8 R8h5 Rh8 Rfg5+ Kf4 Rg6 Nfe4 Qd8 Nf6 Qd1 Ke4 Rf5 Rcd3 Qd2 Rc3 Qd3+
3n3r/BNNpBP2/2Q1pqp1/7R/1bPP1R2/4KnrB/kN1Q2b1/5QBr b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 b3 axb3 Qb6 b4 Qc7 b5 Qd8 Ke2 Kf7 h4 a5 d4 e6 f4 g6 c4 a4 h6 a3 b6 a2 c6 Qe8 b7 Ra4 h7 Ra7 f6 Bc5 h5 Ra3 c7 Nc6 b8B Bd6 f5 Qd8 h6 Bc5 Rh5 Ra8 Nc3 Na5 Nf3 Qf8 Ba7 Bb7 c8N Bd5 Be3 Nc6 Bh3 Nb4 Ne1 Nc6 Qd2 Na5 Bg1 Nb7 Nb5 Be7 Nd3 Nd8 Nb2 Bg2 Ke3 Bb4 Nc7 Ne7 Rf1 a1R Rf2 Nec6 Rf4 Rg8 h8B Ne5 h7 Nf3 Bg7 Rh8 Bh6 Rf1 Bg5 Qe7 Bf2 Rh1 Bg1 Kf8 f7 Qf6 Nd6 Ke7 Nb7 Rb8 Nc5 Kd6 f8Q+ Kc6 Nb7 Ra8 Bb8 Kb6 Qf7 Qg7 f6 Ra5 Bh4 Rg5 Qf8 Rg3 Ba7+ Kc6 f7 Qf6 Qh6 Qg7 Be7 Qf6 Bb8 Kb6 Qe1 Rf8 h8Q Rg8 Qf1 Re8 Nc5 Ka5 Ba7 Rf8 Q8h7 Rh8 Qg8 Ba3 Qgf8 Kb4 Nb7+ Kb3 Qe8 Ka2 Qef8 Nc6 Qc8 Bb4 Qg5 Nd8 Qa5+ Ba3 Qd2 Bd6 Na6 Bc5 Qc6 Bb4 Nc7
2KQ1r2/1p1n2kP/1pB2qr1/1PPB1p2/7R/b3B3/RRNR1nNQ/1b3N1n b - - 0 1 illegal: Other
3B1RBb/Np1P3Q/r2b1pBN/b1P4Q/1kQ1Q1qr/p2nKR2/1P6/R1n5 b - - 0 1 illegal: No possible last move, all moves rejected
1NBn4/PB6/np1r3r/Qq1R3p/b3NK2/B1R1B1p1/1k2PPr1/2NQbQ2 b - - 0 1 illegal: No proof kernel
2k4Q/p3QR2/PP1bpq1N/1rPQ3K/bNRN3n/1n6/3pB2r/2BB1n1B b - - 0 1 legal: proof: e4 b5 h4 c5 c4 g5 cxb5 f5 exf5 c4 hxg5 c3 dxc3 Na6 c4 Nb8 c5 Qc7 Nc3 Qb6 Nb1 Qd8 Ke2 h5 Kf3 d5 b4 Kd7 g4 h4 a4 d4 f6 h3 a5 d3 b6 h2 b5 Rh6 b7 Rh4 b6 Rh8 f7 Rh7 g6 Qe8 g5 Qd8 Kg4 Nc6 b8N+ Ke6 f4 Bh6 f8Q Qd6 f5+ Ke5 a6 Bd7 g7 Qd5 g6 Nb4 Nc6+ Ke4 Be2 Bg5 Nd4 Ke5 Na3 Nc6 Nh3 Nh6+ Kh5 Qe6 g8B Rd8 g7 Qf6 Bb3 Na5 g8B Ba4 Rf1 h1N Nac2 Bf4 Bgd5 d2 Nf2 e6 Qh8 Rg8 Bg2 Rg4 Nb4 Rg3 Bc2 Rb3 Qe1 Rb1 Bcd1 Nb3 Ra2 Bg3 Rc2 Bh2 Rc4 Bf4 Bb7 Bh2 Nbc6+ Kd5 Ng4 Bd6 Qh4 Rb2 Qg5 Ng3+ Kh4 Nf7+ Nh6 Ne5 Rf2 Nf1 Kh5 Ng6 Nb4+ Ke5 Bh1 Nh4 Rf3 Ke4 Na2 Kd5 Qg2 Qg7 f6 Rb1 f7 Qf6 f8Q Rb2 Nc2 Kc6 Nd4+ Kd7 Nb4 Rb1 Qa8 Rb2 Qd5 Rb1 Qh2 Rb2 Qg7+ Kc8 Qe7 Na5 Nbc2 Rb5 Nb4 Nb3 Qhe5 Rg7 Rf5 Rg2 Rf4 Rh2 Rf5 Qh8 Rf7 Qd8 Qg7 Qh8 Qh7 Qf6 Qh8+
4n1N1/p7/pQR1kp1K/N2N3Q/q1Qb2Pb/P2P1bB1/R2r1nBr/3Q1R2 b - - 0 1 illegal: Other
3R1r1N/p2r2Qp/PbKRBn1P/1PN1N3/5q1p/2N1B3/Rb6/knQB2b1 b - - 0 1 illegal: Other
4n1bN/3q1qpN/Q2Q2n1/rB5p/2RP1R2/PpPKQ2R/3br1R1/2k1N1B1 b - - 0 1 illegal: No proof kernel
R1Br1bN1/q1N1Pp1P/4P3/kp2nR2/Rn2pr2/N3Q1q1/3B3B/K3RbQ1 b - - 0 1 illegal: No possible last move
1B3q1N/N1PN2pk/2QbQ3/K1Bn3n/1pB3R1/1pr2rP1/2PRq3/QQ3b2 b - - 0 1 illegal: Other
1R3Q1Q/1p3n2/q4bRP/6Rq/1Nn2k2/NPbP2B1/K1BrRprp/1QN5 b - - 0 1 illegal: No proof kernel
2r1NbB1/qp1Br3/Q2p1b1R/K2nQ2p/3P2Q1/B4n2/R1PP2R1/Q4qNk b - - 0 1 illegal: No proof kernel
1RK3b1/p1nB1N2/2N2qQq/2k4r/1p1b1P1r/pP3B2/P1R1N2R/Bn4NQ b - - 0 1 illegal: Other
5n1K/p1P2PrQ/6Q1/Bb1kbpQ1/qN1q2RR/2P1Q2p/1N4n1/1RB2r1B b - - 0 1 illegal: No proof kernel
b3R1N1/3q3B/n1QR1p1n/2rB1PN1/2n1R3/B1KP1pNr/1P2p2r/N2Q3k b - - 0 1 illegal: Other
2Q1b3/pKBN3n/5r1R/P2P2k1/BRNn4/B1p3N1/2Pqbp2/RQN3nb b - - 0 2 legal: proof: h4 c5 g4 d5 b4 b5 e4 g5 exd5 e6 f4 c4 h5 Qc7 h6 Bg7 hxg7 Qc6 fxg5 Qc5 g6 Qc7 g5 Na6 Ba3 Qd8 Bb2 Rb8 Bc1 Rb6 Bh3 Rc6 Bf1 Rc5 bxc5 Qb6 Qf3 Qc7 Qd1 Qd8 Ke2 Ke7 Ke3 f5 Kd4 h5 a4 f4 c6 b4 c7 h4 a5 f3 Ne2 c3 Ba3 f2 Nc1 h3 Bb5 h2 Ba4 Bd7 c8Q Nc7 Kc5 b3 d4 e5 d6+ Ke6 Nd2 Kf5 Nc4 Nf6 g8R b2 g7 b1B g6 e4 d5 e3 Re8 e2 g8N e1N g7 Nb5 Re4 Ba2 Ne7+ Kg5 g8N Nf3 Nf5 Nh7 Ng3 Nbd4 Nf6 Be8 d7 Ng1 Kd6 Qe7+ Kc7 Rf8 Kb7 Qe5 d8B Qf4 Qf1 Qd2 Nd7+ Rf6 Bc7 Bb3 Nd3 Ba2 Qb1 Bb3 Nc1 Ba2 Ncb6 Bc4 Rh4 Bf1 Nc4 Be2 Rh6 Nh3 Rg1 h1B Rg2 Ng1 Rgh2 Rf7 Rb6 Rf5 Rb4 Rf6 Rh6
1n2k3/1n4r1/1R2Q2q/N4NBN/P1PNR1pb/pBp5/P1n1Q1b1/BK3Rb1 b - - 0 1 illegal: No proof kernel
R1BqNnNb/2B5/Qn1b2R1/n2RNkpp/3B2p1/rbP5/1Q4PP/B3K3 b - - 0 2 illegal: Other
1B1K4/1R2P1Np/1B1b1pBn/Q2NQn1q/2pP4/2rQBRrP/1n4R1/1k5r b - - 0 1 legal: proof: f4 b5 g4 e5 fxe5 d5 c4 f6 cxd5 b4 g5 b3 g6 Be6 axb3 Bc5 b4 Bf7 gxf7+ Kd7 b5 Bf8 Kf2 c5 Ke3 g5 Ke4 a5 Kf5 g4 b4 g3 d4 c4 e4 g2 d6 a4 e6+ Kc8 d7+ Kb7 b6 Ka6 b7 Kb5 e7 a3 Ke6 a2 e8Q Bg7 f8B Qa5 d8Q+ Nd7 b8R+ Ka6 b5+ Ka7 h3 Qc7 e5 Bh6 b6+ Ka6 b7 Ka5 Bd3 Bg7 Bg6 Nh6 Ke7 Kb4 e6 Qa5 Be3 Nc5 Rh2 Rg8 Qd3 Na4 Ne2 g1R Rg2 Qh5 Nbc3 Ka3 Ng3 Rh1 Nf5 Nb2 Rf1 a1N Rf3 Nc2 Nd5+ Ka2 Qa5+ Kb1 Kd8 Ra6 Bb4 Bf8 Ng7 Bd6 Bc5 Rb6 e7 Rb3 Bb6 Ra3 Rc8 Rc3 b8B Rd1 Rc7 Rh1 Nf5 Rg7 Qeb5 Rg8+ Be8 Rg3 Ng7 Qh4 Bg6 Qh5 Bf2 Kc1 Qc5 Ne3 Rb7 Nef5 Bg1 Rc2 Be3+ Kb1 Qdd2 Rc3 Qc7 Ba3 Qe5 Bd6 Qd3+
2nBnNR1/5r2/3B3p/1K2QpNk/B1n4Q/1Npb1PP1/4N1RP/1b2Qbq1 b - - 0 2 illegal: No proof kernel
N2Nr1Qr/R2q4/1p2RB1p/1b1N2Q1/nqQRP1p1/P2nk1P1/4B1R1/2n3K1 b - - 0 1 legal: proof: f4 a5 h4 g5 b4 e5 bxa5 d5 fxe5 g4 c4 Be7 cxd5 Bg5 hxg5 Bf5 Nf3 Bd7 Ng1 Bc8 Kf2 Ke7 e4 f5 d4 c5 e6 Kd6 e7 b6 e8R c4 a3 h6 g6 f4 a6 f3 g7 c3 a7 c2 g3 Ba6 Be2 Bc4 Re6+ Kd7 d6 Kc6 d5+ Kc5 d7 Qe7 d8Q Qf7 d6 Ba2 d7 Bd5 Bb2 Ne7 g8Q Qg7 Nh3 Bb3 Rg1 Bc4 Nf4 Nd5 Qc1 Nc3 Qg5+ Kd4 Rg2 Na6 Kg1 Re8 a8R Bb5 d8N Nb4 Ra7 Qd7 Ra2 Nd5 Ba1 Nb4 Rb2 Na4 Nc3 Qc6 Ncd5 Qd7 Nc7 f2+ Kh2 f1Q Na8 Qf3 Kg1 Qc3 Rb3 Nd3 Rb4+ Bc4 Qe1 Ke3 Qc1+ Qd2 Bf6 Ba6 Rd4 Bb5 Qb1 Qa5 Qa2 c1N Qc4 Qb4 Nd5#
8/2rBp2r/RK2n1RN/RR1b1NBq/b4Q2/1N1QPp2/Q3pPkP/3rq3 b - - 0 2 illegal: Other
2B1Nrb1/K4p1Q/PN1p4/kQ3b2/2Bp4/PR1PB1r1/2R1qBRb/3nN1q1 b - - 0 1 illegal: Other
2BKRQ2/2pQQ3/nq1PPrQ1/5q1B/bBR3Nn/1p1pbqk1/3P4/2R4N b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 h5 b4 a5 bxa5 b5 g4 d4 gxh5 Ra6 Bg2 Rd6 Bf1 Rd5 cxd5 Bd7 Nf3 Bh3 Ng1 Bc8 Kf2 Kd7 Kg3 f5 Kf4 b4 a4 g6 e4 b3 h4 d3 e6+ Kd6 e7 Nf6 Kg5 Ke5 e8B f4 h6 f3 a6 f2 a5 Nc6 h7 Nd4 h5 Qd6 h6 Nb5 a7 Bd7 a8R Qa6 d6 Bh3 Qe2 Qb7 a6 Rg8 h8Q Be6 a7 Bd5 h7 Bf7 Na3 Be6 Nc4+ Kd4 e5 Bg7 Nh3 Qc6 Ba3 Nd5 Bb4 Rf8 Ra4 Rf6 Qf8 Bd7 Ne3 Ke4 h8Q Nd4 Qhh5 Nf5 Qe1 Qb6 Ng4+ Kf3 Bf7 Qb5 Re8 Kg3 a8Q Nh4 Qc8 Qb6 Qe4 Bh8 Bg2 f1Q Nhf2 Qe2 e6 Qf3 Rc1 Bg7 Qh7 Qb5 Bc5 Nb4 Qe7 Na6 Rac4 Qb6 Bb4 Ba4 Qh8 Bf8 Qcd7 Bg7 Qhf8 Bh8 Kh6 g5+ Qg6 Qb5 Kh7 Qbf5 Kg8 Bg7 Bh1 Bh6 Bg2 Qd1 Bb7 Qdf3 Nh2 g4 Bc8 Be3 Kg7 Kg2 Kg8 g3 Nhg4 Qd1 Qgg7 Kf3 Bh5 g2 Qg6 g1Q Qg5 Rh6 Qg6 Kg3 Kg7 Qc5 Kf7 Qf5+ Qef6 Qdf3 Ke7 Nb8 Kd8 Na6 Qgg8 Rg6 Q6e7 Rf6 Qg6 Bh6 Nd1 Qb6 Ndf2 Be3 Nh1+
6Q1/qn4N1/3rN1p1/k1rNBr1p/2pP1B1R/1QP1RBNP/2b1Q3/qb3K2 b - - 1 2 legal: proof: f4 b5 e4 f5 a4 d5 exd5 e5 axb5 e4 Ne2 Bd6 Ng1 Be5 fxe5 f4 g4 Nc6 Bg2 Nd4 Bf1 Nf5 gxf5 Qe7 Nh3 Qf6 Ng1 Qd8 d4 Kd7 b4 a5 f6 h5 f7 c5 f8N+ Kc7 d6+ Kb6 d7 f3 e6 g6 e7 c4 e8N e3 Qe2 a4 Ra3 Ra7 Ng7 Nh6 Nc3 Qe7 d8Q+ Rc7 Bg2 f2+ Kf1 Nf7 Nfe6 Nd6 Qg8 Rc5 Bf3 Qa7 Rb3 a3 Nd5+ Kb7 b6 Ka6 b5+ Ka5 b7 a2 b8Q a1Q b6 Nb7 Qg3 Bd7 Rd3 Ba4 c3 Bc2 Q3b8 Nd8 b7 Bb1 Qf7 Rf8 Qg8 Bc2 Nh3 Rf7 Nhg5 Rf5 Ne4 Bb1 Ng3 Bc2 Qf4 Bb1 b8B Nb7 Be5 Bc2 Kg2 f1B+ Kg1 Bh3 Qe4 Bg4 Kf1 Bb1 Qb2 Bc2 Qb3 e2+ Kg2 e1R Qe2 Rf1 Bcf4 Rf6 Re3 Bgf5 h3 Bfe4 Rg1 Bb1 Nd8 Rd6 Nde6 Rd1 Re1 Bec2 Kf1 Rd2 Qd1 Rh2 Re4 Rg2 R1e3 Rh2 Qe2 Rg2 Nh1 Rg5 Ng3 Rf5 Bg5 Rd7 Rh4 Rd6 Bgf4
RQ3rn1/Kp1q1N2/RP2q3/2Q4p/nQP2pB1/2b3B1/1P1nk1r1/N2N2NR b - - 0 1 legal: proof: f4 c5 a4 g5 h4 e5 hxg5 c4 fxe5 c3 dxc3 d6 c4 Bd7 c5 Bb5 axb5 Qe7 Ra5 Qd7 Ra1 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 e4+ Kg6 g4 h5 c4 a5 e6 f5 c6 a4 e5 a3 e7 a2 e8Q+ Kg7 g6 d5 e6 Kf6 e7 Qc7 Kc5 Ke5 g5 Ke4 g7 d4 g6 d3 Na3 d2 Be2 Ke3 Nc2+ Ke4 Qe1 d1Q Bf4 Qcd6+ Kb6 Rh7 Qb4 Q6d5 c7 Q1d2 c8Q Nh6 g8R Qe1 g7 Ra3 Bg4 Rg3 Ka7 Kd3 b6 Qd7 Nf3 Rg2 Bg3 f4 Rh8 Qe3 g8N Bg7 Nf6 Ke2 Nd5 Qee6 Nde3 Bc3 Nd1 Na6 Qf8 Rf7 e8N Nc5 Nd6 Rf5 Qe7 Rf6 Rd8 Rf8 Nf7 Ng8 Qc7 Qd6 Ra8 Qd4 Qb8 Qd7 Rc1 a1N Qed6 Nab3 Ra1 Rd8 Ra6 Na4 Qdc5 Nd2 Na1 Rf8 Ng1+
n1r3RB/b2q1N1Q/1k1P2P1/n1R3r1/Rp3p1r/1Pp5/B2BqQ2/N1K1B2Q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 b4 c4 Bd7 cxd5 Bb5 axb5 Qd6 Ra5 Qe7 Ra1 Qd8 g4 Kd7 e4 c5 d4 Kc7 Kd2 h5 g6 f5 d6+ Kb7 g5 a5 b6 h4 g7 c4 g6 f4 d5 h3 e6 a4 e5 a3 e7 a2 e8Q h2 d7 Qc7 d8B Na6 e6 Nf6 g8R Qd7 e7 Qc6 Nh3 Qa4 Qf7 Nc7 e8Q Bg7 Na3 Ra7 Qee2 Ra6 Nc2 Qc6 Qf2 Ne8 Ng5 Bh6 Qh7 Qd7 Nf7 Na8 Bh4 Ra5 b3 Nd6 Bd3 Ka6 b7 Bg7 b8B Nb7 Be5 Bf8 Qde1 Bc5 d6 Kb6 Kd1 c3 Bd2 Rb5 Kc1 Na5 Rg1 h1R Rg5 Rh3 Qh1 Be3 Bg3 Rh4 Bf6 Bd4 Rc5 Be3 Qfg1 Bd4 Bge1 Be3 Qf2 Bd4 Rg7 Rc8 Rg8 Be3 Bh8 Bd4 Rb1 a1Q Be4 Qa4 Na1 Qa2 Rb2 Be3 Bb1 Bd4 Rc7 Rg5 Rc5 Qaa4 Rc2 Qab5 Ra2 Qe2 Ra4 Ka6 Rc7 Ba7 Rc5 Kb6 Ba2
1Q1Qq3/1qNk3P/n1RpNpn1/Qr6/Bpb5/1PPr1r2/1N3RR1/K3N1B1 b - - 0 1 illegal: No possible last move, all moves rejected
1Q3b2/pPnqn3/R2kqpN1/q7/1pB4B/NPQ1N2r/3PQ1RN/3r2BK b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 b4 c4 Ba6 cxd5 Bb5 axb5 Qf6 Nc3 Qe7 Nb1 Qd8 Kf2 Ke7 Kg2 g5 e4 c5 h4 c4 b6 c3 e6 g4 b3 g3 d6+ Kf6 e5+ Kf5 d7 c2 e7 Ke6 e8N Bg7 h6 Qf6 d8B Qg6 h5 Nf6 h7 Na6 h6 Rb8 Qe2 Nc7 Nf3 Ng8 Nd6 Qe4 Ra6 Ne7 Bb2 c1Q Na3 Qcc2 Ndc4 Qb1 Ne3 Ra8 Rg1 Nc8 Bh4 Qc4 Nh2 Qbd3 Bd4 Ne7 Kh1 Rac8 Rg2 Bf8 Bc5 Kd7 e6+ Kc6 Bd4 Qb5 Bc5 Qd7 Bd4 Qa5 Bc5 Rg8 h8N f6 h7 Re8 Ng6 Rh8 Bd4 Rc8 Qd3 Kd6 Qc3 Rg8 h8Q Re8 Qh5 Rh8 Bc4 Rh7 Bg5 Rh6 Qe2 Rh3 Bh4 Rc8 Rf2 g2+ Kg1 Nc6 e7 Qe6 e8Q Qd7 Qe4 Ne7 Qa8 Qe6 Qb8 Re8 Rf3 Rc8 Rg3 Re8 Kf2 g1Q+ Kf3 Qb1 Kg2 Qbf5 Kh1 Qd7 Rg2 Qfe6 Qf1 Bg7 Qe1 Rg8 Qe2 Bf8 Nd1 Rh8 Bg1 Rh5 Ne3 Rf5 Qg4 Rf1 Qe2 Rd1 b7+
4B1N1/1NB1N1Nr/pQKQ4/Pr1R2P1/2pR1b1P/2RnQb1q/2p5/k3b1q1 b - - 0 1 illegal: Other
2QRn3/qB1Qp1pK/p3qk2/B1b1R1P1/3RB1b1/P3N1nQ/4P3/n2BN1r1 b - - 0 3 illegal: No possible last move, all moves rejected
4BR2/P1n3q1/1p1p1r1q/BQ1rNbp1/1BK1Q1R1/1Q1R2P1/N2P1kB1/2b4b b - - 0 2 legal: proof: e4 g5 b4 a5 bxa5 f5 exf5 d6 h4 b6 c4 Qd7 c5 Qc6 h5 Qb7 c6 Nd7 cxb7 Ne5 Qc2 Rb8 Qd1 Ng6 hxg6 Ra8 Ke2 Kd7 Kd3 Kc6 b8Q Kc5 a4 e5 f4 h5 g7 h4 g3 c6 a6 h3 a7 h2 a5 Kd5 a6 c5 f6 Bd7 f5 Nh6 g8B+ Nf7 Nf3 Bg7 Ba3 Rh6 Qe8 e4+ Kc3 e3 Bb4 e2 Ne5 Ke4 Kc4 e1Q Ra3 Bh8 Rd3 Nd8 f7 Rf6 f8B Ne6 Bf7 Nc7 Qb3 Qe2 Bg6 Qh5 Bg7 Qh6 Bf7 Bc8 Qb5 Bd7 Be8 Bc8 Rg1 h1B Bh3 Bd7 Rf1 Rc8 Rff3 Ra8 Bg2 Be6+ Kc3 c4 Ba5 Rc8 Kb4 c3 a8Q+ Bd5 a7 c2 Qac6 c1Q Qcc2 Bc6 Kc4 Bd7 Bb4 Qb2 Ba5 Rf8 f6 Bf5 f7 Qa1 Nd7 Qb2 Bgc3 Qa1 Bcb4 Bb2 Ne5 Bc1 Nc6 Qag7 Ne5 Rd8 Bd7 Rfe8 f8R Re6 Be8 Rf6 Bf1 Rd7 Rf2 Re7 Rh2 Ree6 Rh4+ Bg4 Bh3 Rf5 Bf1 Ref6 Bg2+ Rf3 Nc3+ Kf5 Rd5+ Rd3 Qcb1 Bh3 Na2 Bg4 Bh3 Ke4 Nc6 Kf3 Ne5+ Kf2 Bg2 Bf5 Rg4 Re3 Qe4 Rc3+ Kd4 Rc4+ Kd3 Rc5 Rd4 Rd5 Kc4 Qhh7 Rd3 Qhg6 Kc3 Q6h6 Kc4
8/2p1N3/1bB3pq/RQ1Kn3/b3P1p1/nN3rR1/P1q2kPq/RQRQ1BB1 b - - 0 1 illegal: Other
5bBq/1pB1NpQN/R1rRN3/1B2n1Q1/4r1p1/KPB3k1/P1rq2P1/5nQ1 b - - 0 2 legal: proof: f4 a5 c4 e5 fxe5 d5 cxd5 g5 h4 a4 Qxa4+ Bd7 Qa7 Bf5 h5 Bg6 hxg6 Bb4 Kd1 Ba3 Ke1 Bf8 Kd1 Ke7 Kc2 c5 Kb3 h5 d4 c4+ Ka3 c3 e4 c2 g7 g4 d6+ Ke6 b3 h4 d5+ Kd7 e6+ Kc8 e7 Kd7 e8Q+ Kc8 e5 h3 e6 h2 e7 Nf6 g8B Rh3 d7+ Kc7 d6+ Kc6 Ne2 Kd5 Nbc3+ Ke5 Nd5 Rc3 Bb2 c1Q Nd4 Rh3 Ne6+ Kf5 Bb5 Qe1 Bc3 Ne4 Rd1 Qd2 Rhe1 Qc8 d8Q h1R d7 Ng3 Qda5 Rf1 d8B Nd7 Bc7 Ne5 Qg1 Rf4 Qd8 Rb4 e8N Rh6 Nef6 Nf1 Nh7 Re4+ Qe7 Rf6 Qa4 Rb8 Qad4 Qd8 Re3 Rc8 Qec5 Rg6 Rh3 Qf6 Rh6 Qh8 Qe7 Nc6 Qg7 Ne5 Nef4 Rc6 Ne6 Rb4 Qd8 Ke4 Ne7 Rbc4 Neg5+ Kf4 Ne6+ Kg3 Qd5 Re4 Qdc5 Qe2 Rd6 Qd2 Qd5 Nf3 Qdg5 Ne5 B7a5 Rcc4 Ra6 R8c6 Bc7 R4c5 Nf4 Rcc4 Rd6 R4c5 Ne6 Rcc4 B3a5 Rc2 Bc3
3Qb2R/N1Bkq1Q1/Nb3qQN/nR2p3/1pPn4/r3Pp1K/B3PBQ1/6q1 b - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 b5 dxc5 h5 g4 Ra6 gxh5 Rg6 Qd2 Re6 Qd1 Re3 fxe3 Qc7 Bg2 Qb6 Bf1 Qd8 Kf2 f5 Kg2 g5 a4 d5 h4 f4 c6 e6 h6 g4 h7 g3 h5 d4 h6 d3 a6 b4 c7 d2 a5 Qd4 a7 Qc5 a8Q Qd6 a6 Qe7 a7 Qd6 Nc3 Qc6+ Nf3 Ba6 c8N Nd7 Nd5 Qb6 Qc6 Bg7 a8Q Bf6 Nc7+ Kd8 Na7+ Qb8 Nd4 Ke7 Kh3 g2 Ra5 g1Q Bg2 Qd8 Rb5 Nb6 Bd5 Nc4 c3 Bb7 Na6 Na5 Ba2 e5 c4 Bh4 Qg6 Kd7 Nf5 Bc6 Qf1 d1Q Bd2 f3 Be1 Qa1 Qfg2 Qf6 Bf2 Ne7 Qb8 Re8 h8B Qab1 Qb6 Ra8 h7 Qd3 Nh6 Nf5 Bg7 Qdd6 h8Q Nd4 Bf8 Qde7 Qd8+ Ke6 Qc2 Be8 Qcg6 Bg5 Qhg7 Bh4 Qb8 Kd7 Qb6 Bg5 Qd8+ Ke6 Ng4 Qb7 Bd6 Nac6 Qa5 Bf7 Kg3 Be8 Rh8 Qf7 Qb6 Kd7 Nh6 Qe6 Nc7 Bd8 Nc8 Qf6 Kh3 Ra3 Na6 Q7e7 Na7 Na5 Qb8 Bb6 Bc7 Ndc6 Qa8 Nd4 Qd8+
2N1BN2/1nB2Knp/kR1b2Q1/1Rqpq3/8/bP1PQp2/2RBn2P/1N2r2N b - - 1 2 illegal: No possible last move, all moves rejected
3nN3/K3kPBp/1QrQN2n/R2pr1Rq/1R6/pQ1P2P1/B5Q1/bq1B1r2 b - - 0 1 legal: proof: b4 f5 c4 b5 cxb5 g5 a4 d6 e4 g4 exf5 g3 b6 Bd7 b5 Nh6 b7 Bc6 b6 Bb5 axb5 Qc8 hxg3 Qd8 g4 Ng8 g5 Bg7 Ra4 Bh6 Ra1 Bf8 Ke2 c5 Kd3 e5 Kc4 a5 f4 a4 f6 e4 f5 e3 g6 e2 f7+ Ke7 d3 e1R f6+ Ke6 g3 Nd7 b8Q Re5 b7 Qa5 b6 Qc3+ Kb5 Rg5 g7 Qd2 Bb2 Ra6 Nc3 c4+ Nd5 c3 Ne2 c2 Rh5 c1Q Nd4+ Ke5 Nc7 Qg2 Nde6+ Qc3 Be2 Rf5 Rg5 Qh3 Ne8 Qf1 Qb3 Nh6 g8B Bg7 f8Q Qb1 Bd1 Nc5 Qc7 Qd4 b8R Nb7 Ra2 Nd8 b7 Rc6 Qb6 Qc3 Ka6 Qd4 Ka7 a3 Ra8 Qc3 b8Q Qd4 Ba1 Qc3 Rb2 Qc5 Bf7 Rg8 Qe7 Rf8 Qeb7 Qd5 Qc2 Qh1 Qg2 Qh5 Rb4+ Qb2 Nd4 Qb1 Ba2 Rf7 Bb2 Re7 f7 Bf6 Nc7 d5 Nde6+ Kd6 Ba1 Rf1 Bb2 Rd7 Ne8+ Ke7 Bd4 Be5 Ba1 Bf4 Bg7 Be5 Q6c7 Ba1 Qb5 Nb7 Qcb6 Rd8 Qa4 Rdd6 Qb3 Nd8 Nf4 Rf6 Ne6 R6f5 Ka6 Rc7 Ra7 Nc6 Ra8 Rc8 Kb7 Re5 Ra5 Nd8+ Ka7 Rc6 Qd6+
rr1Nk3/nr4p1/qQ2N1B1/RP1nPqB1/6P1/3B2N1/Rp2Qp2/3RbKR1 b - - 0 1 illegal: No proof kernel
2B3N1/1B1nbPpr/K1nQ3R/2NPN3/bp2NkPq/nqR2Q2/5p2/2B2R2 b - - 0 1 illegal: No possible last move
BR2Q1N1/nr2P1p1/1ppBr3/qB1R4/2KRNbP1/q4P2/N1n1R3/2n1Q2k b - - 0 1 illegal: No proof kernel
3Rn3/Rp3Q1b/1BQ2b1k/1N4qn/RPQPp3/PRKBn2r/N6p/1N5q b - - 0 1 illegal: No proof kernel
5R2/1pN1b3/1P1B1N2/Kp4Bn/2B1b3/1Q2p1P1/nP2knR1/NRqr1NqQ b - - 1 2 illegal: Other
N4NQb/B5q1/1Q3k2/ppq5/R1bP4/rBb2B1N/P1pP1Q2/nQ2rR1K b - - 0 1 legal: proof: g4 d5 e4 a5 b4 h5 gxh5 f5 exf5 d4 c3 Ra6 cxd4 Ra8 b5 Na6 bxa6 Qd5 Bb2 Qd7 Bc1 Qd8 h4 Kf7 f4 c5 Kf2 g5 Kg2 e5 a7 b5 h6 c4 h5 e4 h7 c3 f6 g4 h6 g3 f5 c2 Nh3 e3 Nc3 e2 Ba3 e1B Bc5 Rb8 a8B Qc7 Nd5 Bg7 Rb1 Qc6 Ba7 Qb6 Bc4 Be6 Rb4 Re8 Ra4 Qc5 Nb6 Bf2 Bb3 Bc4 Qg1 Re1 Bf3 Be3 Qf1 Bf4 Na8 Bd6 Qf2 Bdf8 Rf1 Be7 Kh1 g2+ Kg1 Qb6 Kh2 Bb4 Qg1 Qc5 Qh1 Kf8 f7 Ke7 f8N Nf6 Qg1 Ne4 f6+ Kf7 Qh1 Rg8 h8Q Bc3 Qh7 Rh8 Qf5 Rg8 h7 Bh8 Qg5 Rg6 Qh6 Rg3 Kg1 Nf2 Kh2 Nd3 Qg1 Nc1 Qf2 Ke8 f7+ Kd8 Qb6+ Ke7 Ne6 Kf6 f8Q+ Kg6 Qc8 Kf6 Nf8+ Be6 Bbd5 Nb3 Qcc6 Na1 Bb3 Rg5 Qe4 Re5 Qee2 Re3 Qd1 Rd3 Qc7 Bc4 Qb1 Bg7 h8Q Rde3 Qg8 Bh8 Kg3 g1Q+ Qg2 Qf2+ Kh2 Qg3+ Kh1 Qg7 Qb6+ Kf5 Qe2 Bb2 Qf2 Rd3 Rb4 Rde3 Ba4 Ra3 Bb3 Bc3 Qb7 Kf6 Ra4 Re2 Qb8 Re1 Qb6+
1r1b1B2/Q4N2/ppknR2B/q3Pq2/BNpR4/B4P2/P1n1n1bQ/1K1RQ3 b - - 0 1 illegal: No possible last move
NbQ5/1B4k1/1p1p2b1/1npP1r2/B4QNP/R2K1QP1/1Q2n1r1/br1N2BR b - - 0 1 illegal: No proof kernel
3Q1r2/1BR1k2K/Nn1bb1QP/Bb3R2/N1Nn3R/n1pp1Q1P/1pP4r/1R6 b - - 0 1 illegal: No possible last move, all moves rejected
n3rBQ1/2p5/RP1B2n1/p1bb1K2/1Q1p2BN/1r3QPQ/3P1R2/NNb1kn2 b - - 0 1 legal: proof: h4 g5 hxg5 f5 b4 b5 e4 d6 exf5 Bd7 c4 Nh6 a4 Ng4 c5 Qc8 c6 Qb7 cxb7 Nf6 axb5 Na6 b6 Bc8 b5 Nb8 Ra5 Ng8 Ra4 Na6 Ra1 Nb8 Ke2 Kf7 Kd3 h5 Ke4 e5 f4 a6 f6 Ke6 f7 h4 f5+ Kd7 g6 h3 f6 Ke6 g7 Nd7 b8N h2 b7 a5 Na3 Nb6 Na6 Rh3 b8Q Rb3 Nb4 Ne7 g8Q Bd7 Qa7 Re8 Be2 Na8 Nf3 Bc8 Re1 h1N Qe3 Ng6 Nbc2 Ba6 Nh4 d5+ Kf3 d4 Kg4 Kd5 Qh3 e4 Kf5 e3 Bg4 Bb7 Qdf3+ Kc5 Bb2 e2 Rec1 Bd6 f8Q e1B f7 Bg3 Rab1 Bd5 Na1+ Kb4 Rc6 Bf4 Ra6 Ng3+ Kf6 Bh6 b6 Bf4 Rh1 Nf1 Nb1 Kc4 g3 Ba3 Rh2 Bfd6 Kf5 Be7 Bc3 Bc1 Bb4 Bd6 Rf2 Be7 Qfh1 Kd3 Ba3 Bd8 Qc5 Be7 f8B Bd6 Rf3+ Ke2 Rf2+ Ke1 Qf3 Be5 Qb5 Bf4 Bae7 Bd6 Qb4 Bc5 Bd6
Q1br4/3NB1p1/1bpnrnB1/N2b4/1K5N/PR1BP1p1/QrP4R/3N2kQ b - - 0 1 illegal: Other
2Kn2r1/Pn3BpR/PQ6/N3pB1N/Q4bnB/1Nk2b2/2p1bNP1/QR2r3 b - - 0 1 illegal: No proof kernel
3B3N/1n2b2k/qQr2N1n/4RP2/2PRpp1K/3b3p/BnB1nQNP/R4R2 b - - 0 1 legal: proof: e4 c5 a4 g5 f4 f5 fxg5 a5 d4 b5 axb5 f4 dxc5 Ra6 Qe2 Rf6 Qd1 Rf5 exf5 Ba6 Nd2 Bb7 Nb1 Bc8 Kf2 Kf7 g4 Kg7 b4 d5 c6 e5 b6 h5 c7 h4 b7 h3 g6 d4 g5 a4 b5 a3 b6 a2 Bd2 d3 Na3 Bd7 c8R Nf6 Ba5 d2 Nc4 Bc5+ Kf3 Qg8 Ne3 Qb3 Re8 Nh5 Kg4 e4 Qe2 d1N Kh4 Na6 b8R Ba4 b7 Nc7 Re5 Nb2 Qf2 Bb4 Ng2 Re8 Bd3 Rh8 Rd8 Bb5 b8Q Qe6 Rd4 Ne8 Nf3 Nef6 Rhf1 Rc8 Bd8 Ng8 Qb6 Ng3 c3 Be7 Bc2 Kh8 g7+ Kh7 Rdd1 Bc4 Rd4 Nh6 g8N Ne2 Nf6+ Kh8 g6 Rc6 Ng5 Bd3 Nf7+ Kg7 Rad1 a1N Nh8 Nb3 Ra1 Nc5 Qa7 Ng4 Qb6 Kh6 g7 Nb7 g8B Kg7 Rfb1 Nh6 Rf1 Qa2 Bgb3 Qa6 c4 Bf8 Nd5 Kh7 Ba2 Be7+ Nf6+
6n1/1Bkb1N2/R1P1NpN1/1Qp1B1nq/1RpnrQ1Q/2P1bP1Q/1K6/1B5n b - - 0 2 illegal: Other
B1N1B3/Kb1r1n2/1B1bpr1R/1B1Q3r/p2PR3/1p2P3/1k1P1N2/1r1RQ1Qq b - - 0 1 illegal: No proof kernel
B3r3/p1p1Q3/b2RPNRB/q2n1Pb1/r1kB1b2/5KpB/P1b1N3/RN5Q b - - 0 1 illegal: No proof kernel
1B1RBR2/7N/1Q1b3b/R3pNpp/1bP1k1P1/3rP1B1/2b1N1n1/K1Nn2Qr b - - 0 2 illegal: No proof kernel
6N1/RNN1ppbB/P1Nr1Pp1/2rP3b/1BQQ1R1K/1knb4/7b/n3BQ2 b - - 0 1 legal: proof: e4 h5 g4 d5 gxh5 a5 exd5 a4 c4 a3 c5 Qd6 cxd6 Nh6 bxa3 Kd8 a4 Ng8 a5 Ke8 f4 Kd7 Kf2 c5 Kg3 b5 d4 c4 a4 b4 h4 b3 f5 b2 a6 c3 h6 c2 a7 Bb7 h5 Rh7 a5 Nf6 Rh4 Bc6 Nf3 Bb5 Rf4 Bc4 Kh4 Bb5 Bd2 c1B Bb4 Na6 Ne5+ Ke8 d7+ Kd8 Nd2 Kc7 d8Q+ Kb7 d6 b1B d7 Bc4 d5 Bba2 Nc6 Bb2 Bd3 Ba3 Qf1 Rb8 a8N Ne4 Nc7 Rc8 Qe8 Nc3 Ne4 Nc5 Nf6 Nb3 Ng8 Bb1 Bc2 Rh8 h7 Be2 h6 Bh5 Ra2 Na1 Bd3 Ra8 Be4 Bd3 d8N+ Kc8 a6 Rb8 Rc2 Rb5 Rb2 Rc5 Rb1 Ne2 Be1 Nc3 Rb7 Bb4 Ra7 Ba5 Nb8 Bb4 Qb5 Ba3 Nbc6 Kd7 Nb7 Bc1 Bf3 Be3 Bd1 Bg1 Bc2 Kc8 Nf6 Rg8 h8Q Bh2 Qh7 Rh8 Ng8 Kd7 Qg6 Rh7 Qg4 Rh8 Nba5 Kd6 h7 Be4 Nb4 Ke5 Nb7 Kd4 Nc6+ Ke3 Bf2+ Kd2 Be1+ Kc1 Qgg1 Bd3 Qd4 Bde2 Be4 Bd3 Nh6 Rg8 h8B Kc2 f6 Ne2 Bh7 g6 Bg7 Rh8 Bb4 Nc3 Ng8 Kb3 Bh6 Bg7 Rf5 Kb2 Bd2 Kc2 Be1 Kb3 Nh6 Rb8 Rf4 Rd8 Ng8 Rd6 Qbc4+
1B1r1QNb/K1P1r2N/B6P/1b2bR1p/6b1/2pNNR1B/2P1n1pR/1nk4Q b - - 0 1 illegal: No proof kernel
1q6/npP1QpB1/N3BP2/2Br2p1/1PN1R2q/2Q3rN/kQQRrn1K/3n4 b - - 0 1 illegal: No possible last move, all moves rejected
1N6/1Q1B1K2/Q1B2R1N/2knPp2/1N2nPRp/Q3n1rP/1qp1QBq1/2b4n b - - 0 1 legal: proof: g4 b5 d4 e5 dxe5 a5 a4 f6 b4 d6 axb5 a4 c4 Bd7 b6 Ra7 b7 Bf5 c5 Bd3 g5 Bc4 b5 Ra6 g6 Rb6 cxb6 Bf7 gxf7+ Kd7 Kd2 g5 Ke3 c5 Ke4 h5 Kd5 f5 f4 a3 e4 g4 h3 a2 e6+ Ke7 e5 c4 Bg2 g3 Qe2 h4 Nf3 c3 Rg1 c2 Ng5 Na6 b8N Nc5 b7 Ne4 b6 Rh6 Nc3 Rg6 Bf3 g2 Be3 Rg7 Rab1 a1Q Bf2 Qb2 Na2 Qd7 Nb4 Ngf6+ Kc4 Rg8 Ra1 Nd5 Ra6 Ng3 Be4 Nh1 Bf3 Kd8 Be4 Be7 f8Q+ Qe8 Qf6 Qg6 Nf7+ Ke8 Nh6 Kd8 Rd1 g1N Rda1 Nf3 Rg1 Ng5 Rg4 Ke8 Bf3 Bf8 e7 Ne4 Qe6 Ndc3 Kd4 Rg7 Qb3 d5 Qa3 Qg5 N8c6 Kd7 b8Q Ke6 e8B Bd6 b7 Be7 Rg1 Qg2 Qa8 Rg3 b8Q Bf8 Qbb7 Be7 Kd3 d4 Kc4 d3 Nb8+ Bd6 Rc6 d2 Q8a6 d1N Rb6 Nd5 Bd7+ Ke7 Rc6 Bc5 Rf6 Be3 Qbc6 Bc1 Qcb7 Ng5 Kc5 N1e3 Kc6 Kd8 Kd6 Ne4+ Ke6 Qb3 Bh5 Qb1 Bhe8 Qb2 Qba8 Kc7 Kf7 Qb1 Bc6 Qa1 Bed7 Qb2 Qac4 Kb6 Qca6+ Kc5 Q8b7 Qb1 Rg6 Qb3 Rg4 Qb2 Rd1 Ne7 Rd6 Nd5 Rf6
K1RnQ3/Pn1N1nR1/r1Q2p1Q/p1B3n1/6np/3Brq2/PNB2P1k/R1B5 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a6 h4 e6 hxg5 Bc5 b5 Ba7 d4 Nd7 e4 Rb8 b6 Kf8 bxa7 Ra8 d6 Nb8 d7 Ke7 d5 b6 d6+ Kf8 Qa4 Bb7 Qd1 Bd5 exd5 Qe8 Na3 Qc8 Nb1 Qd8 Kd2 Kg7 Kd3 Kg6 Kd4 Kf5 g6 c5+ Kc4 h5 g7 a5 Kb5 e5 g3 c4 Rh2 c3 Bc4 c2 Qd2 Kg4 Bb3 h4 Nf3 e4 Na3 e3 Rg2 Kh3 g4 e2 g5 e1N g6 Nh6 g8R Qf8 d8Q Nd3 d7 Nc6 Ka6 b5 Kb7 b4 g7 Ng4 d6 Nde5 Qb6 Rh6 Nc4 Re8 Nb2 Nd8+ Ka8 Re7 Ba4 b3 Qc6 Rhe6 Rh8 f6 g8B Nef7 Qh6 Qg7 Bf4 c1N Ne5 Nd3 Bc1 Nc5 Bh7 Ncb7 Bd3 Qg6 Rg8 Qf5 Rg1 Qf3 Re8 Nh2 Rg7 Ng4 Rh8 Kh2 Rhg8 Ng5 Re8 Ndf7 Rc8 Nfd8 Nbc4 b2 Bac2 b1N Nb2 Ndf7 d8B Na3 d7 Nb5 Bc7 Nbd8 Bb6 Nbd6 Bc5 N6b7 Nbc4 Rd6 Nb2 Nde6 d8Q Re8 Qd5 Ra6 Qc6 Re7 Qdd7 Ned8 Qe8 Re6 Nd7 Re2 Bb5 Re3 Bbd3
N4k1b/Bn1q1n1Q/B2Rn3/p2p1R2/1N1PQ1nP/P5K1/1b1Qp2B/2N2b1N b - - 0 1 legal: proof: e4 c5 b4 a5 bxc5 h5 g3 f5 exf5 h4 Qg4 h3 Qe2 Rh4 Qd1 Rh8 Nc3 g5 Bg2 b5 Nb1 g4 Bf1 Rh4 gxh4 g3 Qe2 g2 Qd1 Ra6 Be2 Rg6 Bf1 Rg3 hxg3 Bb7 Bc4 Ba6 Bf1 Bc8 f4 e5 Kf2 e4 c4 d6 a3 b4 c6 b3 c7 b2 c5 h2 g4 e3+ Kg3 Kf7 f6 Ne7 c6 Bd7 c8N Ng6 g5 Be8 c7 Nd7 f5 Bg7 Nb6 Bh6 c8N Ngf8 g6+ Kg8 f7+ Kg7 f6+ Kh8 g7+ Kh7 Na7 Qc8 Nc3 b1N Ne4 Qd8 Ba6 Ne6 f8B Kg8 f7+ Kh7 Ne2 g1B Nc6 Ndc5 Nf2 Qd7 Na8 Nc3 Nb4 Nb5 d4 d5 Rb1 Nb7 Bc5 N5d6 f8Q Nf7 Qe7 Kg8 Ba7 Bg5 Bd2 Bf6 Nc1 e2 Bf4 Be5 Ne4 Be3 Rf1 Bd2 Qc2 Bc3 Nf2 Bb2 Qd2 h1N+ Kf3 Ng3 Nh1 Nh5 Bh2 Nf6 Kg2 Ng4 Rf5 Bf6 Kh3 Qa4 Kg3 Bd7 Qc5 Bc8 Qcc2 Qd7 Qe4 Kh7 Qc3 Kh6 g8Q Bh8 Qf8+ Kh7 Qh6+ Kg8 Qh7+ Kf8 Qd2 Qc7+ Re5 Neg5 Qde3 Ba1 Qh5 Ngh6 Nc2 Bh3 Rb6 Qd7 Rf5 Ng4 Qh7 Ne6 Qd2 Bb2 Nb4 Bf1 Rd6
3RrbR1/1Q6/Qr1b1BBP/pR1pP3/pnpQ1qN1/2P2N2/nk1NK1N1/8 b - - 0 1 illegal: Other
1NN2n1K/1R2Bb1p/2ppk2Q/5b1n/1qP4N/Rr1pP1R1/2B3P1/Q3QrN1 b - - 0 1 illegal: Other
k1N3B1/2B1R2p/1Pb1p1Pq/1QKnQBp1/2np1rBQ/3b3R/N2P4/R2r4 b - - 0 1 illegal: No proof kernel
1Nk3q1/Q1B3rP/2R1p3/2n1PN2/1P1p2pK/4r3/B1nnpQ1N/1BQ2BRb b - - 0 1 illegal: Other
1r2n3/3p2p1/kBQQ2n1/7P/N1pP1p2/Q1PBnRqr/1bNK3N/Q3RB2 b - - 1 2 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 a4 Ba6 axb5 a4 b6 a3 b3 Bc4 Nf3 Bb5 Ng1 Ba4 bxa4 Ra7 Nf3 Ra5 Ng1 Ra8 h4 f5 e4 c5 h6 c4 h5 f4 e6 a2 b7 Nf6 h7 Qc7 e7 Ra5 c3 Qd6 e5 Qa6 Rh3 Ng8 Nf3 Rd5 a5 Qb5 a6 Qa5 a7 Qa6 a8N Qd6 Nb6 Qc5 Na4 Rd4 Nh2 Nf6 Na3 Qa5 Rf3 Ng8 Nc2 Nc6 b8Q+ Qd8 d3 Nf6 Qd6 Re4+ Kd2 Re3 Rb1 a1N d4 Rg8 h8Q Qb6 Qh6 Rh8 Rf2 Rh3 Ba3 Qb5 Qc1 Qd5 Bb4 Qg2 Qa3 Qg3 Ba5 Rg8 Bb6 Rh8 Nb4 Nc2 Rf3 Ne3 Rc1 Nd8 Qc6 Nf7 Re1 Rg8 Nc2 Nh8 Qcd6 Ng6 Qc6 Kf7 Qa1 Ne8 e6+ Kf6 Qd6 Kf5 Qaa3 Ke4 Qa1 Nh4 Qda3 Kd5 Qg6 Kc6 Qe4+ Kb5 Qc6+ Ka6 Qcd6 Nf6 e8Q Ng6 e7 Rh8 Qc6 Rg8 Qb8 Rh8 e8B Rg8 Qb3 Ba3 Qbd6 Bb2 Qba3 Rh8 Bf7 Rb8 Bg8 Ne8 Bh7 Ne5 Be4 Ng6 Bed3
R1N2b2/QBp1qn2/2PBB2p/R1b3P1/pr3nKP/3k2NQ/p2n2N1/2R4N b - - 0 2 illegal: Other
4R1r1/NN1p2pQ/PBB4Q/2nP1n2/1R3rnk/PQ1p3p/N2b1q2/5NBK b - - 0 1 illegal: Other
b3Kbn1/2PN1N1k/1p1p3R/1QB1Q1Q1/2BPq2r/2n2B1p/1NP1R1p1/6Bn b - - 0 1 illegal: No proof kernel
1n3N1B/2N3B1/1b3PQ1/BkPp4/1r1r2q1/K1pP2pR/2bp2R1/2R1QbQB b - - 0 1 illegal: Other
Nkbn1r1R/rp2B3/2pP2n1/1BN3N1/3pRQ1Q/1K1Bq1pN/Q2Pn1P1/8 b - - 1 2 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 c4 Qd5 cxd5 g4 Qb3 Bh6 Qd1 Bg5 hxg5 Kf8 Rh3 Kf7 Rh1 Ke8 a4 Kd8 f4 h5 g6 e5 f6 c6 g7 Kc7 f5 h4 f7 e4 f8Q e3 f6 h3 a6 h2 a7 e2 a5 Rh5 f7 Nd7 a6 Ne7 g8B Ne5 Nh3 Rh8 Ba3 Nc4 Bh7 Ne3 Bd3 Rg8 Nc3 Bf5 Ne4 Rb8 a8Q Rh8 a7 Rc8 Neg5 Ng6 Be7 Nc4 d6+ Kd7 Qb3 Nce5 Qa2 Rh5 Qh8 Rf8 Qf6 Be6 Qf4 Bf5 Qb8 Rhh8 a8N Rhg8 Qba7 Kc8 Qb6 Kb8 Qd8+ Bc8 Rc1 Rh8 Rc3 Rh5 Bb5 Rhh8 Re3 Rh5 Re4 Rhh8 Rg1 h1N Bd3 Ng3 Rh1 Re8 f8N Nf7 Nfe6 Ref8 Nc5 Rhg8 Qd7 Nd8 Qe8 Rf5 Qef7 Rf8 Qh7 Re5 Qh4 Ref5 Na4 Ra5 Nc5 Ra7 Bb5 Nh5 Kf2 g3+ Kf3 e1Q Bfd3 Qg1 Ke2 Qe3+ Kd1 Ne6 Kc2 Nd8 Qf3 Nhf4 Kb3 Ne2 Qff4 Qg1 Rh2 Qe3 Ng1 Bd7 Qhg4 Ne5 Rh8 Bc8 Qh4 Ng6 N1h3
BRK5/NnP1q3/1pP3r1/1NB1p3/1RbB4/1P2Q3/2pn1R1p/Q1bRn1Qk b - - 0 1 illegal: No proof kernel
2N2b1r/R1qp3q/1R6/2R1QN2/ppQ3pk/PQ1Q1b2/n1PBP3/1KnB3B b - - 0 1 illegal: Other
3B2Q1/1K1n1RpN/r2R1R1B/4R1P1/1p1pB1Qq/1N2b1p1/4PQ1P/qn1k1r2 b - - 0 1 illegal: Other
4NR2/2k2rp1/p2Qp3/nnP2qRB/P2Q2bK/1R2b1NN/PN1q1p2/4B1B1 b - - 0 1 illegal: No possible last move
2NK1nR1/bp2r2p/8/pbkQ2B1/2PRP2N/4b2N/P1B1pnR1/Q3rBN1 b - - 0 1 illegal: No proof kernel
1R1nR1n1/5Nb1/B1k3P1/KpN2q1p/5RQQ/nPp2p1P/5R1B/Q2Nb2b b - - 0 1 legal: proof: f4 b5 a4 g5 fxg5 d5 c4 a6 cxd5 Ra7 a5 Rb7 Ra3 Rb6 axb6 a5 Ra2 Nh6 Ra1 Ng8 d4 h5 e4 Qd7 d6 Qd8 e5 Bh6 d5 Kf8 Qe2 Kg7 Qd1 Kg6 d7 Bf8 Qb3 Rh6 Qf3 Kg7 Qd1 Rd6 exd6 Kg6 Kd2 Kf5 Kc3 Ke5 g4 f5 g6 c5 g5 e6 b7 f4 h3 a4 b3 c4 Kb4 a3 g7 a2 Nc3 Ne7 g8Q Bh6 Nge2 Qc7 d8Q Bg7 d7 Kd6 Rh2 e5 Nd4 e4 Rf2 e3 Bg2 e2 Ne6 e1N Nc5 Qc6 Ka5 Na6 b8R Nc7 g6 Nf5 Qh4 Ne7 d8N Nc2 Qdg4 Bb7 Nd1 Qd7 Qh8 Ne6 Nf7+ Kc7 Rb1 a1B Bb2 Nd8 Be5+ Qd6 Be4 Ng8 Bf5 Bd4 Bc8 Na3 Rc1 Bc6 Ba6 Bb2 Rc3 Bc1 Rcf3 Bd2+ Bc3 Ba8 Bb4 Qd7 d6+ Kc6 Bc3 Qe7 d7 Be1 Bd2 Qe6 Bb4 Bh6 Qa1 Qf5 Bd2 c3 Bc1 Ne6 d8R Bg7 Re8 Nd8 Bd2 Kc7 Be3 Bd5 Bd4 Kc6 Be5 Be4 Rd3 Bg2 Rd4 f3 Bh2 Bh1 Rf4
Qn1b1b1B/BN2p3/3pp2n/1pR1PN2/k1N1Br2/1RNP1Q2/2b2P2/4bQK1 b - - 0 1 illegal: Other
5q2/3p2pn/BR1P1RpP/QP1BR1br/1pp5/N1B4Q/1r2R3/kN1K1Nn1 b - - 0 1 illegal: Other
1B1R2QQ/1PQBqb2/1Pp1Np1r/p1P1b1RR/2r2p2/1Kn2k2/3B1NQp/8 b - - 0 1 illegal: Other
1n1Q2R1/3B2Np/1K1b1pp1/p3R3/3BPPQ1/pb2n1Nr/P5RN/1N1k1Bq1 b - - 1 2 illegal: Other
1r1R3b/qQp1kN2/r1pR3p/1pNN4/5pR1/6Q1/1PK1Pq1P/1RBnQB2 b - - 0 1 illegal: Other
1Q1b1rB1/6R1/4k2p/p1B4Q/Q2P3P/Kpn1rppn/1R1r1RP1/N1Q1N2B b - - 0 1 illegal: Other
1n2NNr1/3Q4/1K1N1p2/1p6/p2pPPpn/1BBQ3B/3PRQ1R/2n1bbNk b - - 0 1 illegal: No proof kernel
3q4/BP1r1Q2/1R1r1p1N/1n2Q1QB/bR2pP1n/4k2K/1b2PrQ1/1N1NR1bn b - - 0 1 legal: proof: c4 d5 cxd5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 d4 Kd7 b4 Kd6 f4 a5 Kf2 c5 Kg3 e5 h4 g5 h6 g4 h5 c4 b6 e4 h7 a4 b7 a3 b5 c3 h6 a2 b6 c2 Nh3 Be6 Nf2 Nc6 b8R Ra6 Be3 c1B Bh3 Nf6 Qg1 Ra7 Qg2 Ne8 Nd1 Ng7 Re1 Ba3 Ndc3 Bb2 Bf2 Rg8 h8Q Bd7 h7 Nf5+ Kh2 Ng3 Qg7 Nh1 h8Q Be8 Qg5 Rg6 Qhe5+ Kd7 Bg1 Bc5 d6 f6 d5 Nd4 b7 Rg7 Rc8 Ra6 Rc6 Nb5 Rb6 Bf2 Nd2 Be3 Rab1 a1R Bf2 Ba3 Rb4 Bb2 Ndb1 Bd4 Qf3 Bc5 Bg2 g3+ Kh3 Bd4 Qfh5 R1a3 Bf3 g2 Qh7 Rb3 Bh5 g1N+ Kg4 Nf3 Kh3 Re7 Qf7 Nh4 Rc6 Qa8 Qg2 Ng3 Qg5 Nc7 Nb5 Rf3 Be3 Rf1 N5c3 Nh1 Bg1 Be5 Ba7 Bd4 Na4 Bg1 Nac3 Ra5 Rcb6 Rf2 Rb3 Ra4 R3b5 Rd4 Rb4 Kd8 d7 Re6 Qfg8 Ke7 d8N Ba4 Nf7 Nb5 Nh6 Rc6 Q8g6 Kd6 Qf7 Kc5 d6+ Rd5 d7 Qg8 Rb3 Kd4 d8Q Ke3 Qb8 Rd7 Qbe5 Rcd6 Rb4 Qd8 Nd1+
3B1R2/1Br2P2/nQ2N3/r1R1Nb1Q/Q1pbk2p/2P2N1P/qqbKn3/N4B1q b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 f5 axb5 Ne7 g4 Ng8 gxf5 Be7 Bg2 Ba3 Bf1 Bf8 e4 Kf7 b4 g5 f4 h5 b6 d5 b7 c5 e6+ Kf6 e5+ Ke7 h3 a5 c3 g4 f6+ Ke8 e7 Kf7 e8B+ Ke6 b5 Kf5 b6 g3 e6 c4 e7 a4 f7 a3 Bc6 g2 e8Q a2 Qa4 h4 Na3 d4 Nf3 g1Q Nc2 d3 Kd2 Bc5 f8N Nh6 Ne6 Na6 b8N Bd4 b7 Rh7 Nd7 Qa5 Nde5 Rc7 b8Q Raa7 Rb1 a1Q Qb6 Qb2 Bb7 Ra8 Rh2 Qh1 Rg2 Bd7 Rg8 Bc8 Qeb5 Bd7 Rd8 Bc8 Rd5 Ke4 f5 Bd7 f6 Nf5 f7 Ng3 Q5c5 Ne2 Qcb5 Qa1 Ba3 Qb2 Be7 Ra7 Bd8 Ra8 Kd1 d2 Na1 Bc8 Nf8 Bf5 Ne6 Qbb4 Kc2 d1B+ Kd2 Bc2 Q5c5 Qa3 Rb5 Qb2 Rd7+ Rc6 Re7 Ra7 Re8 Ra8 Rf8 Ra7 Qab4 Qaa2 Qa4 Ra8 Qe7 Ra7 Qg5 Ra8 Rd5 Rc5 Qh6 Rac8 Qh8 R8c7 Qh5 Ra5 Rc5+
Qrn1N3/rqPB3R/k3B3/Q1K2b2/3BQpqB/1r2pRn1/1N2PP2/Nqb5 b - - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 Rh7 g4 Rh6 gxh5 Rh8 Kd2 g5 Ke3 a5 Kd4 d5 h4 Kd7 c4 Kc7 b4 Kb7 c6+ Kb6 h6 f5 h7 e6 c7 a4 c5+ Ka7 b6+ Kb7 c6+ Ka6 b7 a3 b5+ Ka7 b6+ Ka6 h5 g4 h6 a2 Nh3 g3 Bg5 g2 Nf4 g1Q Na3 Qh2 Qb1 Nd7 b8Q Ngf6 b7 Bb4 Qe4 Nb6 Nd3 f4 Nb2 Qg8 Bh4 Qg4 Bh3 Nh5 Nc2 Bd2 Kc5 Ra7 Qa8 d4 b8Q e5 Rag1 a1R Rg3 d3 Rf3 Rg1 Na1 Bf5 Qd8 Bc1 Qg5 Rc8 h8N d2 h7 d1Q Nf7 Rg3 h8B Qg2 Nd6 Rb8 Ne8 Nc8 Qd8 Qb3 Qd2 Qb7 Rh2 Qg1 Qdd5 Ne7 c8B Qd1 Bd7 Nc8 c7 Qd3 Qb4 e4 Bd4 Qb1 Qe1 e3 Qb4 Rg1 Qe4 Rd1 Qe1 Rd3 Qd2 Rb3 Rh1 Qg2 Bg4 Ng3 Rh3 Bh7 Bge6 Bf5 Bd8 Nf1 Rh7 Qg4 Bh4 Ng3 Qa5+
2nrqN1k/1b2p3/1bq1R3/1p2PQR1/BP2r2b/n1B2KBn/2Q3PN/RN2B3 b - - 0 1 illegal: No proof kernel
5rq1/2R2b2/1Q1n4/6BP/1p2b1Q1/nNpR2QK/nPPBRQr1/q1bB2kN b - - 0 1 illegal: No possible last move, all moves rejected
NkBb1K1n/rQ4Bb/RqQ4p/4N1B1/pBq3R1/1nr4P/P4P1r/b4Q1N b - - 0 1 legal: proof: e4 d5 exd5 c5 g4 f5 gxf5 Qd6 b4 Qd7 bxc5 Qd8 Ke2 Kd7 Ke3 Kc7 Kf4 b5 Ke5 a5 d4 g5 c4 e6 c6 b4 f6 g4 d6+ Kb6 d7 Ka7 c5 b3 c7 a4 d5 b2 f7 g3 c6 g2 d6 Be7 f8B Nf6 Bg5 Ng8 Ne2 g1R Nbc3 b1Q Bg7 Bf8 Nd5 Nh6 Ng3 Qc2 Bh3 Ba6 c8Q Qb6 Kf6 e5 d8N e4 c7 e3 Qf1 e2 Nf7 e1B Ne5 Nc6 d7 Ba5 d8B Bd3 Be7 Qc4 Bb4 Nf7 Qd7 Nd4+ Qc6 Bc2 c8Q Nb3 Nc7 h6 Rb1 Rg2 Rg1 Bh7 Nh1 Bd6 Qa6+ Kb8 Bc8 Ra7 h3 Rh2 Na8 Rf8 Rg4 Nh8+ Nf7 Bc7 Ke7 Rg8 Rd1 Be5+ Rd7 Bc3 Ne5 Ba1 Qab5 Rd8 Rc7 Rd7+ Kf8 Rd3 Re7 Rg3 Re6 Rc3 Qa6 Qbb5 Qf3 Qb7 Qb5 Bd8 Ra6 Qb6 Qd7 Na5 Qfc6 Nb3 Qdb7+
1B1q2nK/2p2r1Q/1pb2B1R/3nRRb1/QPr2r2/P3bN1B/2PQ2N1/4B1qk b - - 0 1 illegal: No proof kernel
2bq1N2/2QRQn1p/2rrB3/1pP3nP/R4n1b/n2k2N1/KPnB4/RQ2R1N1 b - - 0 1 illegal: No proof kernel
b3rk2/2r1b3/p3B1Qn/bB1Q4/1q1R1BpP/NQ2b1n1/PR4P1/1NBKb2N b - - 0 1 illegal: Other
k2r1n2/2KQ1pQ1/2pP2B1/2b2R1N/3br1b1/Q1PR4/NbnBRPN1/bq4R1 b - - 0 1 legal: proof: e4 d5 exd5 b5 a4 h5 axb5 Nh6 g4 Ng8 gxh5 Ba6 Qg4 Bb7 Qd1 Bc8 Ke2 Kd7 Kf3 g5 Ke4 a5 Ke5 a4 b4 e6 h4 a3 d4 a2 h6 g4 b6 c6 h7 g3 d6 g2 d5 Bb7 b5 Kc8 h5 Be7 h6 Ra3 Bd3 Ra4 Nc3 Rd4 Bg6 Nf6 Nge2 g1B Bd2 Ba6 b7+ Kd7 b6 Rg8 h8N Rf8 h7 Bh2+ Nf4 Be2 Rg1 Na6 b8Q Nb4 b7 Bg4 Qa8 Qb8 Qa3 Rd8 Rc1 a1B Na2 Bg3 c3 Nc2 Rb1 Bh4 Re1 Bg5 Nh5 Be3 Re2 Rb4 Bf5 Ba7 Ng6 Bd4+ Kf4 Rc4 h8Q Nh7 Qg7 Nf8 Nh4 Ra4 Bg6 e5+ Kg3 e4 Kf4 e3 Ng2 Qc7 b8R Qb6 Rc1 Qb1 Rb5 Kc8 d7+ Kc7 Rc5 Kb7 Ke4 Ka8 Rb5 Bb6+ Ke5 Bec5 Ra5+ Ba7 Rb5 Bd4+ Kd6 Bdc5+ Kc7 Re4 Re1 e2 Rg1 Rb8 d8R e1B Re8 Rd8 d6 Bb4 Rf5 Bc5 Qf3 Bd4 Rd1 Bc5 Qh3 Bd4 Bc1 Bd2 Re7 B2e3 Rd3 Bc5 Bd2 Bf4 Be1 Bc1 Bd2 Bcb2 Ree5 Rd4 Re2 Re4 Qh4 Bd4 Qe7 Bc5 Qd7 Bd4 Qb3 Bac5 Qa3+
1Knb1B1Q/1pr1Nn1R/1PP1bnNR/3n3B/5R2/p2N1qr1/Prk1B2Q/6R1 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 dxc5 Rh6 g4 Rh7 gxh5 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 g5 Kd5 a5 c4 e5 f4 e4 b4 a4 h4 e3 b5 d6 b6 g4 c6 g3 c5 g2 c7 a3 c6 e2 h6 e1R h7 Qe8 h5 Re4 h6 Bd7 c8B Re1 Qh5 Re3 Ne2 g1N Nbc3 Rg3 Qh2 Qh5 Bd2 Nf3 Nc1 Ne5 Nd3 Qg4 Be2 Be7 Rag1 Bd8 Be3 Nf7 Bc5 Be8 Be6 Bd7 Bb4 Bc8 Bd7 Ra4 Be8 Nd7 Bc5 Ng5 Bg6 Rb4 Bh5 Rb2 Bb4 Ne5 Bc5 Nef7 Bb4 Ne4 Bc5 Qf3 Bb4 Ke7 f6+ Kf8 f5 Ne7+ Kd4 Bd7 Nd5 Nc8 Ne7 d5 Bc5 Rhg8 h8R Be6 Rh7 R8g7 Bb4 Ne5 f7 Nf6 Kc5 d4 Nf2 Na7 Kd6 d3 Bc5 d2 Nd3 d1N Ng8 Be7+ Kc7 Nc8 Kb8 Nc3 Bb4 Nd6 Bc5 Bd8 Ne7 Nc8 Rh8+ Rg8 h7 Kg7 f8N Ncd5 Nfg6 Nf7 Bb4 Kh6 Bd6 Kg5 Bb4 Ng4 f6 Rg7 Bd6 Nfe5 f7 Ngf6 f8R Nf7 Ng8 Kf5 N8e7+ Ke4 Bb4 Nh6 Rf7 Ke3 Rhf8 Kd4 h8Q Kc4 Bd6 Kc3 Bc5 Kc2 Bb4 Rg8 Rh7 Rg7 Rf7 Ne4 Rf4 Nef6 Nf5 Rf7 Bf8 Rc7 Nfe7 Nf7 Qf2 Kd2 Rhh4 Kc2 Qh2 Qf1 Bhg4 Qg2 R4h6 Qf3 Bh5
2K3n1/bN2b1N1/1p1R1nR1/BP3QnQ/B2R3P/p3k1NB/Pr2Rrbq/5b2 b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 d5 gxh5 Qe7 c4 Qd7 cxd5 Qd8 Kf2 Ke7 Ke3 a5 Kd4 f5 Kc5 g5 d4 c6 e4 a4 b4 a3 h4 g4 h6 g3 d6+ Ke6 h7 g2 d5+ Kf7 e6+ Kf6 e5+ Kg6 e7 f4 e8N Kf5 e6 Ke4 e7 f3 d7 b6+ Kd6 c5 Rh2 f2 Nd2+ Kf4 Qc2 c4 Ng7 c3 Ne2+ Ke3 Ne4+ Kf3 N2g3 g1N Bd2 Ra4 Nc5 Nh3 Nb7 Ng5 Bh3 f1B Re2 Bg2 Qg6 c2 Rg1 c1B Be1 Qe8 Kc7 Bf4+ d6 Be5 d8R Nd7 Qb1 Ndf6 Qf5+ Bf4 Kb8 Qf7 e8B Be7 Bd2 Be6 Bd7 Bc4 Kc8 Ra5 Ba4 Rb5 d7 Qg6 Re6 Bcf1 Rd6 Qh5 Re8 Qg4 Bc3 Ke3 d8R Qe2 Rd4 Bb8 R8d6 Ba7 Be1 Re5 b5 Re4 Ba5 Rf4 R4d5 Rb4 Rd4 Rb2 Red8 Nh6 Re8 Rf8 h8Q Nhg8 Qh5 Be4 Nh1 Qh2 Rg4 Beg2 Ng3 Nfh7 Qc5 Rff2 Qf5 Ne4 Rgg6 Neg5 Red8 Nhf6 R8d7 Rfc2+ Rc7 Re2 Rc2 Rf2 Re2+
n1R4r/K1p3qP/2B2b2/2Pr2NB/1Q2brB1/NnNp4/RbRP4/Q1b1Bk2 b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 gxh5 Rh7 a4 Rh6 axb5 Rh8 h4 Ke7 e4 Ke6 Ke2 a5 Kd3 g5 Kc4 f5 b4 g4 b6 d5+ Kb5 g3 c4 f4 h6 g2 c5 a4 b7 f3 h5 d4 h7 d3 h6 f2 Ne2 g1B Bb2 a3 Bd4 a2 Bh3+ Ke7 e6 f1R e5 Re1 Na3 Ra4 Bg4 Nd7 b8R Bb7 Nc3 Be4 Rc8 Bg7 Bf2 Qf8 Qc1 Re2 Be1 Nb6 Qb2 Bf2 Rc1 a1B Rc2 Re3 Qc1 Bb2 Qa1 Bc1 Rf1 Ra8 Rg1 Rb8 Ka6 Rf3 b5 Bf6 Ka7 Na8 b6 Bd4 b7 Rf4 Rh1 Qg7 Rh4 Bg5 Ra2 Nf6 Rh1 Nd5 Rf1 Rd8 h8N Bf6 h7 Ne3 Nf7 Nc4 Ng5 Na5 Rg1 Nb3 Rh1 Kf8 e7+ Ke8 Ne6 Kf7 e8B+ Ke7 Bc6 Rd5 Rh4 Kf7 Ng5+ Kg6 e6 Bde5 e7 Bd4 Bf3 Kf5 e8B Bde5 Beh5 Bd4 Nd1 Bdb2 Nc3 Ke5 Bfg4 Kd4 Re8 Rc8 b8Q Rcd8 Re7 Rh8 Re8 Bg2 Na4 Rf3 Be6+ Ke5 Rb4 Rf4 Rc4 Bh1 Rc2 Kd4 Nh3 Ke4 Rc8 Bg2 Bg6+ Kf3 Qb4 Ke2 Bg4+ Kf1 Ng5 Bf3 Nc3 Be4 B6h5
3r1knB/3p2n1/1NpR1PR1/r1PP1B2/n1b4b/NQ1R4/KB2b3/QN1qnN2 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 a4 Ba6 axb5 Bc8 c4 e5 b4 h5 d4 a5 Kd2 e4 Kc3 a4 Kb2 a3+ Ka2 e3 f4 h4 g4 e2 d5 e1N f6 h3 f7+ Ke7 c5 h2 g6 c6 f5 Ra7 g7 Rh6 g5 Ra4 g6 Na6 b6 Rh7 b7 Nh6 b8Q Nc7 g8R Nd3 g7 Nf4 b5 Ng4 b6 Ra7 b7 Ra6 Bd3 Nb5 Ne2 Nf6 Ng3 Ra5 Bb2 Rh8 Nf1 Qb6 Rg1 h1B Rg6 Qa7 Qa8 Qa6 b8N N4h5 Qb3 Bf3 Qa7 Qb6 Na6 Be2 Nb4 Ba6 Nc2 Qb8 Qa8 Qg3 Rh6 Qe1 Be4 Qd1 Bd3 Ng4 Rd6 Nh6 Qa7 Nc7 Be4 Na8 Bd3 Nb6 Be4 Bac4 f6+ Kd8 Bd3 Na4 Bf5 Rh7 Rh8 Ng8 Qa6 Be7 f8B Ke8 Qa7 Rh6 Qa6 Rg6 Rh6 Bd8 Qa7 Bc7 Qa6 Rg3 Rg6 Kf7 Qa7 Re3 Qa8 Re8 Qa6 Rd8 Qa8 Nh6 g8N Ng7 Ne7 Ng8 Nc8 Ke8 Nb6 Kf7 Re6 Bg3 Rd6 Bh4 Qa6 Nh5 Bg7 Ke8 Bh8 Kf8 Nc3 Ng7 Rc1 Bcd3 Nb1 Bc4 Ka1 a2 Nca3 Qd2 Rc3 Qe1 Rf3 Qd1 Be5 Nc3 Kb2 a1N Rd3 Na4+ Ka2 Nc2 Bd4 Rb5 Qa5 Ne1 Qc3 Ra5 Qa1 Bf3 Bc3 Be2 Bb2
2rnQNrR/2QN1bb1/1R2q3/1B2b1p1/7r/K1p2RPn/P1PR1B1Q/3k2bN b - - 0 1 illegal: Other
br2r1N1/1RqQ1RQ1/p2P1NR1/2B3r1/2pQ4/PnPnr1k1/1NB2R2/1K2b1b1 b - - 0 1 illegal: No proof kernel
1N4Q1/R1rrpN2/5nNK/rb3Qp1/1R1bP1BB/5rPq/1PQ3N1/Bb2k2n b - - 0 1 illegal: Other
2b1Q1r1/b2r2r1/1Qp5/k2nR1BN/1pBRNn2/nqP1BQ2/PP1K4/nN1B4 b - - 0 1 illegal: No proof kernel
NR2KnQb/2r1PRp1/B5PB/Q3pN1p/n3b1RP/5rNB/1n1R1k2/1q5r b - - 0 1 illegal: Other
n2br2B/1Q2BBNP/6br/1N1p4/6Np/R3Qp1P/b1n2PnK/QqRk2B1 b - - 0 1 illegal: No possible last move
1Q1RrbB1/1Rp2Q2/N1b2Prk/1nPN1p2/4rq2/4BP1n/1Bp2Nn1/4Q1QK b - - 0 1 illegal: Other
1n1bBB2/p2Qpp1r/1k2BqB1/P4P2/Qb1r2P1/R1RQKbRN/3N4/r6n b - - 0 1 illegal: No possible last move
2RQ1nbN/1p4br/5r1P/1RppQN1r/3P1BNk/1P5B/K2BqQ2/2B1b1n1 b - - 0 1 illegal: No proof kernel
NB4nq/R6B/1R1bPp1b/R1p4K/qkPr1P1n/1N3N2/Q1p1B1r1/1bQ4N b - - 0 1 illegal: Other
2b4Q/2p1pkb1/Rqr2n2/rp1q2RN/1P2P3/B2BQ1N1/r2nKP1Q/4RBB1 b - - 0 1 illegal: No proof kernel
R4QnN/1RBp1bpK/2n1pr2/3P2rN/B2R4/qqQ2N1b/4PkPN/n3Q3 b - - 2 3 illegal: Other
K5n1/1pP1B3/1RQ5/Nqb2Q2/2rp1Rp1/2QNRqP1/1P1q4/QBrbnk1N b - - 0 1 illegal: No proof kernel
B4N2/3PRRb1/nqpKprpk/2P3rN/1b2PB2/1nBQ1N2/3RB1b1/1Q5b b - - 0 1 illegal: No proof kernel
2Q2q2/nR3r2/NkP3R1/3b2B1/Kp3p1r/2Q2PRn/1PBN1Rp1/1Bbr1Qr1 b - - 0 1 illegal: No proof kernel
2BN2Rb/Brqb2PK/2p1Rp2/1p3P2/1k2rn1Q/3r1r1R/NPQ4N/R3n2B b - - 0 1 illegal: No proof kernel
RK2NbB1/pP1p3k/R1Q1nnrp/2rQ3R/qBN1n2P/3P4/3Nn3/1R1b1B2 b - - 0 1 illegal: No proof kernel
1kBrNq2/p1nNRp2/2nB2B1/P5Rb/K5B1/pRb1r3/Q1bP1P1b/1Q4N1 b - - 0 1 illegal: Other
3B2bk/3pb1pb/3P1p1r/R2RR1r1/1Q1Nn2N/r1BBQPq1/2KQ1QP1/5q2 b - - 0 1 illegal: No proof kernel
3rN2R/2N4b/b2b3B/R1Np1np1/2Q4B/qBpPkBP1/b1P5/1b1QKQ1n b - - 0 1 illegal: No proof kernel
rn1k2qB/2Qp3p/3N2nP/pb5B/3PN3/P2nRKNn/q2b1RB1/5RQB b - - 0 1 legal: proof: e4 f5 exf5 c5 b4 Nh6 bxc5 Ng8 g4 Kf7 f6 Ke6 f7 Kd5 Bd3 Kc6 Ba6 Qb6 Bf1 Qd8 f4 a5 g5 b5 f5 Ra6 Nf3 Kb7 Ng1 Rf6 gxf6 Kc6 Kf2 Kc7 c4 e5 h4 g5 c6 b4 a3 g4 c5 e4 h5 b3 h6 b2 Be2 Bb7 Nc3 b1Q Bb2 Qe8 Nb5+ Kd8 c7+ Kc8 Rh3 Qc2 Re3 Be7 f8Q Qb1 f7 Bf6 Qd6 Bg5 f8N Qd8 f6 Qa2 f7 Bc6 Ne6 Bb7 f8R Bf4 Ng5 Ba8 d3 Kb7 c6+ Kb6 c8B Ne7 c7+ Bc6 Bb7 Ng6 c8B Rg8 Bh8 g3+ Kg2 Qe8 d4 Qee6 Qe5 Qg4 Nd6 Kc7 Ba8 Bb5 Bcb7 Qge6 Rf6 Kd8 Rb1 Rf8 Rb2 Qf7 Bh5 Qg8 Ne2 Re8 Qg1 Rf8 Rd3 e3 Kf3 g2 Ng3 e2 N5e4 Bd2 Re3 Re8 Rb1 Rf8 Rf1 e1N+ Kg4 Re8 R6f2 Nd3 Qc5 Ke7 Qc7 Rc8 Qh2 g1N Qh1 Nh3 Qg1 Re8 Kf3 Rc8 Qc4 Kd8 Bd5 Rc7 Qc5 Ra7 Qc7+ Ke7 Bac6 Ra8 Ke2 Ba6 Nf6+ Qe6 Bh1 Bb5 Bce4 Qg8 Beg2+ Qae6 Nfe4 Qa2 Qc6 Kd8 Kf3 Qgc4 Qb7 Qg8 Qc7+
bB1B2R1/kQN4n/2pB2Np/pQR2nb1/P3Bb1Q/2P4n/5rrP/K3n1N1 b - - 0 1 illegal: No possible last move
1b6/bBPKpkq1/3RPN1B/Q1B3p1/1Nprp1Pr/n2b4/B2N1Q1R/1n5Q b - - 0 1 illegal: Other
6qR/6b1/1npBNBN1/2PBbb1Q/p5RK/Q3pBp1/P3rQP1/1R2nkr1 b - - 0 3 illegal: Other
r1NQ1b2/q3nNpR/pRNrnpP1/PP5R/K2B1rbQ/3Q3B/2k2p1R/8 b - - 0 1 illegal: Other
3bRrq1/4BNP1/4Bpp1/1p3n2/Q2QKNr1/1p1NB1P1/1PnRbrR1/3B2k1 b - - 0 1 illegal: Other
2BNK3/B1PRn2p/p3r2P/2b3Qr/1r1Nb1N1/P5p1/1kNQQ2p/n2Rq2R b - - 0 1 illegal: Other
R2kN2B/bRQn3b/2pp2p1/2r1Q3/3P1p1P/2Q1RRP1/nqNK2br/3BB3 b - - 0 1 illegal: No possible last move
N1R5/PQB1n3/b1BN2Np/2Qp1qp1/nR3Q1r/2pB1KP1/1rrP3b/1B3k2 b - - 0 1 illegal: No proof kernel
Q1r3Rn/Qppk4/1Qr2RpN/1Kp5/QbNRnB1r/B4qP1/2P1P3/3b3B b - - 0 1 illegal: Other
r2Q1R1Q/4p1N1/2NBbkpn/NBbp1P1q/2B1rn2/3P1Q2/p3P2n/1R2K2B b - - 0 1 illegal: No proof kernel
4K3/2pNNn1p/2Q1p2B/1B1bp2Q/1Qq1PnpR/1rk3P1/2N1rbBP/2R2B2 b - - 0 3 illegal: Other
2Q1r1NQ/p1RN2Qq/5BB1/KB2BpPp/2p2P2/1R1n4/Pbrn2p1/1b1Nk3 b - - 0 1 illegal: No proof kernel
1BnBq3/PN1QNR2/N3PK2/3bP1Rr/1N1Nbk2/2N5/q3B3/2r1r1bn b - - 0 1 legal: proof: b4 a5 bxa5 h5 g4 b5 gxh5 e5 f4 d5 fxe5 d4 a4 d3 axb5 Na6 cxd3 Bc5 d4 Bf8 d5 Nb8 Kf2 Kd7 Kf3 c5 Kg4 g5 Kf5 g4 d4 f6 h4 g3 e4 c4 d6 c3 e6+ Ke8 d5 c2 b6 g2 a6 Qd7 a7 Qc7 h6 Qg7 h7 Nc6 b7 Nb8 d7+ Ke7 d8N Kd6 h5 Qe7 h6 Na6 b8N Qe8 Nc3 Nc5 Nge2 g1Q Nd4 Qg2 Ra5 Nd3 Bg5 c1R Nd8c6 Bb7 Na6 Qa2 Be2 Nf2 Rf1 Nh1 Ncb4 Rc8 Qd3 Re1 Qh3 Be7 Rb5 Bd8 Rc5 Bb6 Bf4+ Ke7 Bb8 Rc7 Qg4 Kd6 Qg7 Ba8 Qf7 Bb7 Kg6 Ke5 d6+ Bd5 d7 f5 d8N f4 Nb7 f3 Ra5 Qea4 Qd7 Kf4 Rc5 Ne7+ Kf6 f2 Ra5 Bc4 Rg5 Nc8 e5 Bb3 Rfg1 Bd5 Rf1 Re8 h8B Rc6 Nd1 Rc1 h7 Rg8 Bg7 Rh8 Nc3 Qc6 Bf8 Qb5 Be7 Qba4 Qc7 Qe8 Bd8 Be4 Qd7 Bd5 Rfg1 f1B Rg7 Be4 R1g5 Bfg2 Rf7 Bd5 Qc7 Bge4 Qd7 Rf8 h8N Rg8 Rg2 Rg5 Rg1 Rh5 Ng6+ Ke3 Ne7 Kf4 Rg5 Bc5 Ndf5 Bg1 Nd4
Q1R1R3/nr1RN1K1/3nkPn1/NRN3q1/1B2bP2/5Rn1/b1B2Pnp/5R2 b - - 0 1 legal: proof: d4 a5 h4 g5 e4 f5 exf5 c5 dxc5 b5 a4 g4 axb5 Bh6 g3 Bf4 gxf4 Ra6 Bc4 Rg6 Bf1 Rg5 hxg5 Ba6 Kd2 Bb7 Ke1 Bc8 Kd2 Kf7 Ke3 e5 Ke4 h5 b4 h4 c4 d6 f6 a4 g6+ Ke6 b6 h3 b5 g3 b7 a3 c6 a2 c7 h2 g7 g2 c5 Na6 b8R Rh3 c6 Ne7 g8N Nb4 b6 Rh7 b7 Ng6 Nf3 g1N Qa4 Ne2 Ne7 Qg8 Nbd2 Qg7 Rb1 a1N Nc4 Nac2 Na5 Ncd4 Rb3 Nf5 Ba3 Qh6 Ne1 Qg5 Nd3 d5+ Kf3 d4 Ke4 Bd7 c8R Rf7 c7 Nc6 Rf8 Na7 Rfd8 Bc6+ Rd5 Rg7 c8R Rh7 Bb4 Neg3+ Kf3 Nd6 Nc5+ Kf7 Re8 d3 Rbc8 d2 b8R d1B+ Ke3 e4 Rb5 Bc2 Bd3 Bb1 Rf1 Ba2 Bc2 Rg7 Kd4 e3 Rc3 e2 Rf3 e1N Qa3 Nc4 Rd7 Be4 Qa4 Ng2 Qa3 Bf5 Kd5 Nd6+ Nc4 Nge4 Rdb7 Bd7+ Nf5 Nc6 Qa8 Na7 Rbc7 Ng3 Rcb7 Ne7+ Ke5 Bc6 Rbc7 Kg6 Ke6 Be4 Rcb7 Nec6 Rf7 Ne5 Ke7 Rh7 Kf8 Rg7 Rfb7 Rh7 Kg8 Rc7 Kh8 Kf7 Ne7 Ng6+ Kh7 Rd7 Na5 Rc7 Na4 Ke6 Kg7 Rc5 Rd7 Rc7 Ra3 Rb7 Rd3 Bf5 Rf3 Be4 Nc5+
7q/N5p1/1n2N3/bb2NPB1/b3P1Pq/1rQN1Kb1/k1B1R1n1/1N1NR1R1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 h5 f3 h4 Qc2 h3 Qh7 e4 Qxh3 Bc5 Qh7 Bf8 Kd1 f5 Ke1 a5 e3 f4 fxe4 f3 Qf5 Rh4 Qh7 Rf4 exf4 Ra6 Qh3 Rh6 Qh4 Rh8 Qh5+ Kd7 Qh7 Ke8 Kf2 Ke7 g4 Kd6 h4 Kc5 b4+ Kd4 f5 c5 b6 c4 h5 c3 h6 c2 b5 a4 b7 a3 b6 a2 d6 Nf6 d7 Qe7 d8N Ne8 Nh3 Bd7 Nc6+ Kc5 d4+ Kd6 d5 Kc5 d6 Nc7 Bd3 Be6 d7 Nd5 d8N Nd7 b8N Nf4 b7 Nb6 Re1 Bd7 Na7 Kb4 Ne6 Kb3 Nbc6 Ng2 Nb4 Ba4 Bg5 c1B b8R Bd2 Bc2+ Kb2 Kg3 f2 Kf3 f1B Nf2 Bfb5 Qg6 Qd8 h7 Bd6 Qf6+ Bc3 Rb7 Bg3 Rc7 Rg8 h8N Qa8 Rc5 Rb8 Nf7 Rb7 Rd5 Qh8 Rd2 Rb8 Ne5 Qh4 Na6 Ba5 Rde2 Rb7 Nac5 Rb8 Na3 Rb7 Rad1 a1Q Nb1 Ka2 Ncd3 Qc3 Rg1 Qc8 Rde1 Qch8 Nd1 Rc7 Qe7 Rc3 Qc7 Rb3 Qc3
4NN2/1N1P1P1R/3r1N1K/1B1NrbP1/1n2n2B/1b1p2B1/1k2b2N/3Q1bbR b - - 0 1 illegal: No proof kernel
R5Q1/K4Pn1/1N1bpR2/R4b2/1kPrNP2/Rn3rBB/r1R3nn/3R2N1 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Bb7 dxc5 Qb6 a4 Ba6 axb5 a4 Bc4 Qa5 bxa5 Bb7 Bf1 Bc8 Ke2 g5 Ke3 d5 Kd4 Kd7 h4 g4 c4 a3 h6 g3 b6 Kc6 b7 a2 h5 e6 h7 g2 h6 Be7 f6 Bd8 a6 Bd7 a7 Bc7 f7 Na6 b8R Nb4 Nd2 Nd3 Qg4 Bh2 Rb2 Ne1 Ne4 Bd6 Bf4 Nf6 Bg3 Nh5 f4 Ng7 Rc2 Bc8 Rd1 a1N Rh3 Bb7 Rh5 Rhg8 h8R Rgb8 h7 Nb3+ Kc3 d4+ Kb4 d3 Rf8 d2 h8R Ne8 Qg8 Ng7 R8h6 Rd8 Re8 Nf3 Rf6 Nh2 Ra1 d1N Ra3 Rd7 Rd8 Ne3 Ka4 Be7 Kb4 Rd4 Rg5 Bd6 Rd7 Rd8 a8R Rd2 Rd5 Rf2 Rd1 Rf3 R8a5 Ra8 Rd8 Ra7 Ra8 Ra6 Ne2 g1R Bh3 Ng2 Ka4 Rgf1 Ng1 R1f2 Kb4 Rd2 Ka4 Rd4 Kb4 Kd7 Kb5 Ra7 Kb6 Bd5 Nd2 Be4 c6+ Ke7 c7 Bf5 Ne4 Ra6+ Kb7 Kd7 Kb8 Kc6 Rd5 Ra4 Rda5 Kb6 Raa1 Kc6 Ka7 Ra2 c8N Rb2 R5a3 Ra2 Nf2 Kc5 Ne4+ Kb4 Ra5 Rb2 R1a3 Ra2 Nb6
rB2B1b1/1k2Bb2/2P5/qb2b2p/1qbB1NR1/PQ1P4/B1R3N1/KnR2B2 b - - 0 1 illegal: No possible last move, all moves rejected
4RB1Q/2Nr4/1P4n1/P2nnp2/BnR2rn1/N4bR1/2R1kP1N/rR4KR b - - 0 1 legal: proof: d4 b5 g4 e5 dxe5 a5 c4 a4 cxb5 a3 bxa3 Ke7 a4 Ke8 a5 Bc5 Qd4 Ba3 Qd1 Bf8 h4 f5 g5 Qf6 gxf6 g5 Bf4 g4 Be3 Bh6 Bc1 Bg5 hxg5 Ba6 Rh2 Bb7 Rh1 Bc8 a4 Kf7 e4 Kg6 f7 d5 f8R c5 e6 h5 a6 g3 a7 g2 e7 c4 e8R h4 e5 h3 e6 d4 b6 c3 a5 h2 e7 d3 Na3 c2 Bb2 c1N Qf3 d2+ Kd1 Nh6 Nc2 Nd3 Ke2 d1N Ba3 Bb7 Rc8 Ng4 e8R Kh5 g6 Nd7 g7 N7e5 g8R Ng6 Rb1 Ne3 Rc4 Rd8 a8N Nd5 Nc7 N3b4 Qc3 Rd7 Nf3 g1N+ Ke1 Rh6 Qh8 Ba8 Bg2 Rhh7 Kf1 Bb7 Nh4 Nf3 Rf6 Kg5 Rfc6 Nfe5 Bf3 Rh6 Bd1 Rhh7 Nf3+ Kh5 Rg1 h1R Nh2 Kg5 Kg2 Rh3 Re1 Rf3 Rf1 Rf4 Re1 Na6 Bf8 Nab4 Na3 Rf1 Ba4 Rh1 Re3 Rc1 Rg3 Rh1 Rbb3 Ra1 Rb1 Ne7 Kg1 Rd8 Nf1 Rd7 R4c5 Rfd4 Qh4+ Kf4 Rc2 Ba8 R6c3 Bg2 Rg7 Ned5 Rh7 Ke4 Rc5 Bf3 R5c4 Kd3 Qf6 Rf4 Qh8 Rg7 Rh1 Rd7 R2c3+ Ke2 Nh2 Rd6 Rcc1 Rd7 R1c2+
2RRN2B/K4P1N/3q3r/Qb6/1rkNNBNq/P1PNrB1p/1b6/4q2q b - - 0 1 legal: proof: d4 f5 e4 a5 exf5 c5 dxc5 a4 g4 a3 f4 Qb6 f6 Qc7 f7+ Kd8 f5 Qb6 bxa3 Kc7 a4 Kc6 a5 Qd8 g5 Na6 h3 Nf6 h4 Nc7 Bh3 Ne6 gxf6 g5 Bf1 g4 Nd2 g3 Nb1 Ng5 hxg5 Qc7 Qh5 Qb6 Qd1 Qd8 Kd2 Kd5 Kd3 b5 a3 h5 g6 e5 c6 b4 c7 g2 g7 b3 g8N h4 a6 h3 a7 b2 Qh5 d6 Nc3+ Kc5 Ne4+ Kb5 Bf4 b1R Ne2 g1Q Bg2 d5 Nc5 d4 Nh6 Rb4 Rd1 Be7 f8B Bb7 c8N Qd6 f7 Qf2 f6 Qd5 Bg7 Rh7 f8N Rb2 f7 Qg3+ Bf3 Bf6 Ng4 Rh6 Bh8 Rb4 Nh7 Qh4 Qg5 Rb8 a8N Ba6 Qf5 Qd6 Nc7+ Ka5+ Ke4 d3+ Nd4 d2 Nd3 Bb5 Ne8 Ra8 Rc1 d1Q Rh2 Qh1 Rd2 Ka4 Ke3 e4 Qg5 Qc6 Ncd6 Ra7 Rdd1 Re7 Nb3 Qc4 Ne1 Qc6 Qe5 Bc4 Kd4 Qd7 Kc5 e3 Rd5 e2 Nd3 e1Q Qc3 Re3 Ne4 Bb5 Kb6 Rd4 Qd2 Qe7 Rd8 Qd6+ Ka7 Be5 Qc3 Bg7 Qc7 Rb4 Qb6 Bb2 Qc5 Ba6 Qc7 Kb5 Qa5+ Kc4 Nd4 Bb5 Ra1 Kd5 Rb1 Bc1 Rb3 Bb2 Rc3 Qf6 Rcc8 Qfh4 Ndc5 Kc4 c3 Bd7 Nd3+ Bc6 Ndc5 Bb5 Nd3+
2BBBNBB/1nnQKNqr/1Rr2Pbb/3PN3/3k4/R7/Ppp1n1B1/8 b - - 0 1 legal: proof: c4 a5 h4 g5 hxg5 f5 e4 d5 cxd5 e5 exf5 e4 b4 e3 bxa5 Ke7 dxe3 Ke8 e4 Bd6 e5 Bf8 Ke2 Kf7 Ke3 c5 Ke4 h5 f4 b5 g4 c4 g6+ Ke7 g7 c3 e6 Kf6 g5+ Ke7 Ke5 b4 g6 c2 f6+ Ke8 f5 h4 a6 h3 a7 b3 e7 Kd7 e8B+ Kc7 f7 Kb6 Ne2 Kc5 Bg2 h2 Na3 Ne7 Kf6 Bb7 g8B Rh4 g7 Nbc6 Bb2 Qa5 Nc4 Nb8 Nf4 Qd2 Ng6 Qe2 Nce5 Bc6 Rb1 Rh7 Bc3 Qd3 Qg4 Qg3 Ba5 Qc3 Bd8 Nc8 Rhf1 h1N Rf3 Nd6 Qa4 Bb7 Qd7 Ng3 Ke6 Ne2 f6 Na6 Re3 Rc8 a8B Bc6 Bb7 Rc7 Bc8 Nb7 Rh3 Qg3 Rb2 Bd6 f8B Kd4 Rb1 Bb4 Kf7 Be1 Ke7 Bd2 Bgf7 Bb5 g8N Rc3 Nh6 Bd3 Bg7 Nc7 Bg8 Rc6 Nhf7 Bh6 Bh8 Bf5 Nf8 Qg7 Rf1 Be4 Rff3 b2 Rb3 Bf5 Rb6 Bg6 Ra3
K5N1/2qpqR1b/kP1B2P1/B5RB/qB5R/1rN3qp/Qn1P4/2B1B2r b - - 0 1 legal: proof: e4 b5 b4 f5 exf5 g5 g4 Nh6 c4 Na6 cxb5 Ng8 h4 Nb8 hxg5 Nh6 a4 Ba6 f4 Kf7 f6 Ke6 f5+ Ke5 f7 Nc6 b6 Bc8 Bg2 Nd4 Bf1 Nb5 axb5 Rb8 Ne2 Bg7 Ng1 Bf6 gxf6 Kd6 g5 Ra8 Qe2 Ng8 Qg4 Bb7 Qd1 Bc8 Ke2 e5 Kd3 h5 Kc4 c5 f8R a5 f7 h4 f6 e4 b7 Kc7 b8B+ Kb6 g6 a4 Bd6 a3 Be2 e3 Nf3 a2 Ne5 Ne7 Nc3 Bb7 Nc6 Ng8 Qa4 Nh6 Ne7 Ra7 Ng8 Nf5 Bh5 e2 Rb1 a1Q Qa2 Ba6 Kd5 Kb7 b6 e1Q b5 c4 Kc5 Qg3 Rb4 h3 Rg1 Ne3 Ra4 Nd1 Rb4 Qd3 Rg5 Nb2 Bg3 Ra8 Be1 Qg3 Ra4 Kb8 b7 Ka7 b8B+ Kb7 Nd5 c3 Rh4 c2 Bd6 Qe7 b6 Bc4 Nc3 Ra3 Kb4 Rb3+ Ka5 Be6 Bb4 Kc6 Ka6 Rh7 Qa5 Qa4 Ka7 Rg7 Ka8 Bd5 Re8 Bc4 f8B Rf7 Bg7 Rf8 f7 Bd5 Qa7 Bc4 Nd5 Kb5 Rb8 Rc8 f8B Rc6 Be5 Rf6 Bed6 Rf1 Ba5 Rh1 Qc7 Ka6 Nc3 Be6 Qc5 Bf7 Qa3 Bc4 Qa2 Bf7 Nh6 Bg8 Re8 Bh7 Ng8 Qf6 Re3 Qe7 Rf3 Nd3 Bb2 c1Q Rf7 Qc2 Bc1 Nb2 Ne4 Qcc4 Nc3 Qc7 Bdb4 Qe2 Bfc5 Qe7 Bd6
q2RB3/2b1NRB1/1p1nQ1Bp/3r1pkN/1PBPP3/3B2r1/4nK2/B1q2R2 b - - 0 1 legal: proof: b4 d5 h4 g5 hxg5 e5 c4 a5 cxd5 e4 bxa5 e3 fxe3 Bg4 e4 Bd7 e5 Bf5 Ba3 Bc2 Bc1 Bb3 axb3 Qd7 Ra4 Qd6 Ra1 Qd8 d4 Ke7 e4 f5 g4 c5 a6 h6 a7 b6 b4 c4 g6 c3 g5 c2 g7 Nc6 d6+ Ke6 d7 Nb8 g6 Qf6 d8B Bd6 Nh3 Qf7 Nf4+ Kd7 e6+ Ke8 e7 Rh7 Bb2 c1Q Nc3 Na6 Bd3 Qb1 Kf2 Qc4 Ncd5 Qba2 Qb3 Bc7 Rhf1 Qc6 Nh5 Nf6 g8B Rg7 Bh7 Nc5 Rac1 Qa5 Ba1 Na4 Qa2 Rg8 g7 Kf7 e8B+ Ke6 Be7 Rd8 a8R Nc3 Bhg6 Ne2 Bf8 Qc2 Rc8 Qa8 Ne7+ Rd5 Rd8 Qd1 Rc3 Qc1 Ra3 Bd6 Ra7 Bc7 Ba4 Ne8 Bc6 Nd6 Bce8 Rh8 Qc4 Rh7 g8B+ Rf7 Nf4+ Kf6 Bg7+ Kg5 Nh5 Rc5 Qe6 Rd5 Beb5 Rf8 Bbc4 Rf7 B8h7 Rf6 Be8 Rg6 Rb7 Kh4 Ra7 Rg3 Bhg6 Kg5 Nc8 Bb8 Rf7 Bc7 Ne7
nb2Nr2/1P1Pn1b1/4QN2/2RBr2p/1R2R1p1/2k1BR1R/KN2p2P/1r5R b - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 d5 a4 e5 axb5 f5 e4 Qf6 exd5 e4 g4 Qe5 fxe5 f4 Ra2 Kf7 Ra1 Bf5 gxf5 Ke8 d4 Kd7 Kd2 a5 Kc3 h5 Kb3 g5 c4 f3 d6 a4+ Ka2 a3 e6+ Ke8 f6 f2 d7+ Kd8 e7+ Kc7 e8N+ Kb7 d8R g4 f7 e3 b6 Ka6 d5 Ka5 d6 Kb4 d7 e2 c6 Ra7 c5 Bg7 f8R Ne7 b7 Ra6 c7 Bh6 c8R Kc4 c6 Rb6 c7 Nec6 Qb3+ Kd4 Nd2 Ne7 Ne4 Nbc6 Be3+ Ke5 Nh3 Nd5 Nf4 Rb5 Bg2 f1R N4f6 Nb6 Rb1 Na8 Bd5 Ne7 Rb2 Rb1 Nd3+ Kf5 Qc4 Bf4 Rb4 Ra5 Rf7 Rf8 Nb2 Ke5 Qc6 Nb6 Ra8 Rc5 Ra7 Na8 c8R Bg3 Qb6 Ra5 Rc5 Bf4 Kb3 a2 Rdc8 Rb5 Ra4 a1B Rc3 Rc5 Ka2 Ra5 R8c5 Bg3 Bd2 Bf4 Rh3 Rb5 Nc4+ Kd4 Be3+ Kc3 Qe6 Bd6 Nh7 Bg3 Rf3 Bb8 Nhf6 Kc2 Nh7 Bg7 Nhf6 Kd3 Rc6 Kc3 Nb2+ Rc5 Re4 Rg8 Rab4 Rf8 Bc4 Rg5 Rc5 Re5 Bd5#
N1N1K1R1/3BR1pr/QP1pp3/4N3/3N1PPp/1rqRNqb1/1k1B4/5Nr1 b - - 0 1 illegal: No proof kernel
2kB4/1pr1p1Pb/1B2N1R1/3q2P1/B1BN2rp/1P1RQ3/B1rp1B1r/K2N4 b - - 0 1 illegal: No proof kernel
8/b2rRr1n/1b1bNb1n/Rb3Q2/1N1Bn2P/NP1k1KN1/2NPN3/q1RB4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 f4 Kd6 h4 Kc5 b6 Kc4 h6 g5 d6 c5 h7 a5 d7 e5 f6 e4 f5 a4 f7 a3 b7 a2 f6 g4 Rh3 g3 Bg2 e3 Qf1 Bd6 f8N Ra7 f7 Nh6 Kf3+ e2 b3+ Kd3 Ng6 c4 f8N c3 Ne7 c2 Rh1 Qa5 d8N Nd7 b8N Ba6 Na3 Nf6 Nf5 Rf7 Nfe6 Bb5 Ndc6 Rd8 h8R Rdd7 Na6 Nh7 Bb2 c1N Re8 Qa4 Bh3 g2 Bd4 Qa5 Qf2 e1B Bg4 Ne2 Re7 Ng3 Ne2 g1B Qf1 Bef2 Qh3 Bh2 Rhc1 Ne4 Qf1 Bhf4 Nfg3 Bc5 Qh3 Bb6 Bh5 Bd6+ Qf5 Bbc7 Bc5 Qa4 Ncd4 Bb6 Ndc2 Qa5 Bd4 Bg1 Rab1 a1B Bg4 Bc3 Ra1 Bb2 Nc4 Qc3 Ra5 Ba7 N4a3 Ba1 Bf6 Bgb6 Bd4 Qb2 Bh5 Qb1 Bg4 Bc3 Bh5 Qa1 Kg2 Bf4 Bh8 Rf8 Ne2d4 Be3 Bd1 Bf4 Nde2 Rf7 Kf3 Bd6 Bg7 Bf6 Bh8 Bg5 Bd4 Bf6 Nab4+
2bn3K/3r4/2rb1B2/2qq2BQ/1P2RP2/3qBN2/1PR2qbk/BnB1NBN1 b - - 0 1 illegal: Other
qBB1b1b1/1R2q1Bb/5n1b/Rr1n1P2/B6B/RN2r3/rP2BNkP/2QK4 b - - 0 1 illegal: No proof kernel
2N1N1b1/3Q3B/1K1N1NPB/Rn1r4/2rPPNn1/b1R1b3/1k1r2Rr/N4qq1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 a5 Kd4 h5 g4 f5 b4 h4 g6 c6 g5 h3 e6+ Kd6 b6 f4 b7 h2 g7 a4 b5 a3 e7 f3 b6 f2 Nh3 a2 Na3 Rh7 Rg1 h1R Rg2 Rh4+ Nf4 Nh6 g8N Ra5 Nf6 Be6 Nc2 Na6 b8R Nc7 b7 Ng4 Rc8 R1h2 b8N Bg8 Nbd7 c5+ Kc4 Rb5 Nb6 Ke5 e8N Qe7 e3 Qg7 Bd3 f1R Bh7 Rf2 d3 Rd2 g6 Qf7 Qe1 Ra5 Qd1 Nb5 Rc7 Bh6 Nc8 Bf8 Ne6 Be7 d6 Qf8 d7 Qf7 Ne4 Qf1 d8N Bf8 Nb7 Bh6 Rb1 a1Q N4f6 Bf8 Nbd6 Qd4+ Kb3 c4+ Kb4 c3+ Rc4 Qa7 Na1 c2 Nf4 Bh6 Rc3 Bg5 Ba3 c1B Rb2 Qb6 Ra2 Qa7 Nb6 Bh6 Kc5 Bg5 Bb4 Ba3 Kc6 R4h3 e4 Kd4 Nbc8 Rg3 N4d5 Be3 Nf4 Qc5+ Kb7 Ra4 Ba5 Rc4 Bc7 Qg5 Kb6 Rf3 Bd8 Rfh3 Be7 Rh5 Bf8 Qc5+ Ka5 Rd5 Bh6 Qb4+ Kb6 Qb1 Qa4 Qg1 Qa7 Qbf1 Qd7 Rb4 Rc5 Rc4 Rc7 Kc3+ d4 Bc1 Ra4 Ba3 Ra5 Kb2 Rc6 Rb4 Rc1 Rc4 Rc3
r1N1N1q1/1P1Nn2n/1q1N1n2/Pbb2rP1/N5N1/R1B1R1nK/k7/1b1R1BQ1 b - - 0 1 illegal: No proof kernel
1r5N/2r2r1B/1NP1kbn1/2r2PRK/6rN/1r1B1Q1q/bP2nN1N/5NBR b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 d5 Kg4 g5 f4 e5 c4 a5 h4 d4 c6 d3 c5 d2 h6 a4 c7 e4 b6 a3 h5 a2 h7 e3 h6 e2 c6 e1R b7 Bg7 Nh3 Qd3 Qf3 d1R Nf2 Be6 c8B Bf6 Be3 Nd7 b8N Ra7 Kh5 g4 Nd2 Nb6 Nd7 Na4 Nb6 g3 Rb1 Qc3 Bd3 a1R Nf1 g2 Rc1 Qb3 Rc5 Ne7 Bd7 Rb8 h8N+ Kg8 Be8 g1R Nf7 Rac1 Ne5 Rg4 Bg6 Nc3 h7+ Kg7 h8N Ne2 Rd5 Rc7 Bh7 Ng6 Rb5 Rc5 Ra5 Bg5 f6+ Kf8 f7 Ke7 f8N Bf6 Rb5 Rdc1 Ra5 R1c3 Bd4 Qa3 Be3 Ba2 Rb5 Nh4 Nfg6+ Ke6 Ra5 Rb3 Bd4 Nf5 Nh4 Ne7 Rb5 Ng6 Be3 Rcc1 Rd5 Rc5 Bd4 Rg2 Neg4 Ra1 Ngh2 Rg4 Rg5 Rd1 Bb1 Rf7 Be3 Rdd7 Bd3 Rc7 Nd1 Qa4 Bg1 Qe4 Nf2 Qe3 Qg2 Qg3 Qf3 Qh3 f5+
1r2rk1q/3B2n1/1R4KB/2PB3P/Bb1pR1B1/1QN4n/1brPb3/3RBNn1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qa5 c4 Qc7 c5 Qd8 Kf2 g5 Kg3 d5 c4 a5 h4 f5 e4 g4 Kf4 a4 h6 a3 b6 g3 h5 d4 e6 a2 c6 g2 b7 Ke7 Kg5 f4 e5 f3 c7 f2 h7 Na6 b8B Bg7 Nc3 Nf6 Rb1 a1N Qb3 Kf8 Nge2 g1B Bg2 f1R Ba3+ Nc5 Ng3 Rc1 Nf1 Ne4+ Kg6 Ng5 Bd5 Ba6 c8B Nh3 Bc7 Rg8 h8R Rc2 Rh7 Bh2 e7+ Ke8 Bg4 Ne6 Rd1 Rb8 Rh6 Rh8 Rg1 Bf8 Rg2 Ng7 Re2 Rg8 Re4 Bg3 Kh7 Qc8 Rb6 Rh8+ Kg6 Qd8 Qb2 Nb3 Bb4 Nc1 Qb3 Qc8 Bc5 Ne2 B7d6 Ne6 Ba3 Neg1 Bab4 Kd7 e8B+ Kd8 Bec6 Ng7 e6 Be7 Ba3 Re8 Bd7 Bgh4 Be5 Bb4 Bg3 Ke7 Be1 Kf8 Ba4 Bhe7 Bd7 Ba5 Bd6 Bb5 Bf4 Beb4 c5 Be2 Bh6 Ba3 Ba4 B5b4 Bd7 Bb2 Ba4 Kg8 e7+ Ne6 Rb7 Qc7 Be3 Qe5 Rb6 Qh8 Bg5 Rec8 e8B Kf8 Beb5 Ng7 Bbd7 Re8 Bh6
3r3n/N2kR3/3N2Pn/1pK1B1b1/NN2RqNb/1rQ1nBPq/1PB5/6Nb b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 a3 Qa4+ Bd7 Qxa3 Be6 Qa7 Bc8 Ke2 b5 Ke3 e5 f4 h5 d4 c5 a4 c4 a5 c3 a6 c2 f6 e4 g6 h4 d6 h3 d5 h2 Kd4 e3 f5 e2 g3 e1N Qc7 Qe7 a7 Qf7 Kc5 Rh6 Ra4 Bg7 d7+ Kf8 d8N Ke8 d6 Qb3 f7+ Kf8 d7 Ke7 f8N Qf3 Na3 Rh4 Nb7 Be5 d8N+ Bd7 f6+ Ke8 f7+ Ke7 Re4 Rg4 Bf4 c1B Nd6 Nh6 Nc2 Nc6 Bd3 Ng2 Nfe6 Ne3 f8N Bf6 Be5 Qf4 Nh7 Bh4 Nb4 Rb8 a8B Rc8 Bh8 Ne5 Nf6 Nef7 Bc2 Rb8 Qa5 Bc6 Qa3 Bd2 Qc3 Bd5 Bg7 Nh8 Bb7 Ra8 Bc6 Ra3 Ba8 Rg5 Ng4 Rb3 Be5 Kd7 Ndc6 Rf5 Na7 Rf8 Ne2 Rg8 Re1 h1Q Ng1 Rf8 Kd4 Qh3 Nc5+ Ke7 Re2 Rd8 Na4 Kd7 Kc5 Bb7 Rd4 Bg2 Bf3 Bh1 Re4 Ng2 R4e3 Qf7 Bf6 Bc1 Re8 Bcg5 Be5 Qf4 Re4 Ne3 Re7+
5R2/q1Nrp1rB/2rP4/R2RPB2/3B3R/q1P1RKn1/R2NnbQ1/2qk2b1 b - - 0 1 illegal: No proof kernel
4N1R1/b1NP1q2/q1bk3B/b1Rq2P1/rNB3PB/1Kp1N2n/4NQ2/2Nrn3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kd7 f4 e5 d4 c5 Kd2 h5 Kc2 a5 b4 e4 b6 e3 d6 e2 d5 e1Q f6 c4 b7 h4 f7 h3 b5 a4 f5 a3 f6 c3 b6 h2 Nd2 a2 Nc4 Ne7 Ne3 Qf2+ Bd2 Ra6 Qf3 Qc7 Bc4 Ra3 Ne2 Qc6 Nc1 Qf1 Be1 Bh6 f8B Nf5 f7 Na6 Qg3 Ra5 Kb3 Nb4 Qf3 Nc2 b8N+ Kd8 b7 Bd7 Na6 Nh4 b8N Bg7 Qg2 Ng6 Nc7 Bd4 Ne8 Nf4 Na6 Ba7 Nb4 Qa6 Bg3 Qf3 Qf2 Bc6 Bg7 Rh6 f8N Rh3 Ne6+ Kd7 Nd4 Rh4 Qd2 Qf2 Rf1 h1Q Bh6 Rh2 Qe1 Nh3 Nde2 Qhf3 Bh4 Rh1 Nbd3 Qe4 Nb4 Qff4 Rf3 Qd4 Qf2 Rd1 Bf8 Qf5 Bh6 Ne1 Rf4 Qh7 Rf8 Qf7 Rg8 Kd8 d7 Ke7 d8N Kd7 d6 Qdd5 Nbc2 Ra3+ Kb4 Ra5 Rb1 a1B Ne6 Bb2 N6c7 Ra2 Ra1 Ba3+ Kb3 B3c5 Nb4 Bcb6 Nb5 Ke6 d7 Ke5 Nbc7 Ra5 Ng7 Kd6 Ra2 Qd4 Rd2 Ra4 Rd3 Ba5 Nge8+ Ke7 Rd2 Qe4 Rd5 Qh1 Rc5 Qhd5 Nf6 Kd6 Nfe8+
bb2b1N1/1q2nN1P/1BP1BN2/1KN2b2/3b1R2/Q1r4p/3RN1BP/1N1n1kr1 b - - 0 1 legal: proof: f4 b5 g4 h5 a4 e5 fxe5 c5 axb5 h4 d4 Qg5 dxc5 Qh5 gxh5 Bb7 Nd2 Ba6 Nb1 Bc8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 b4 Kg4 h6 a5 b6 d5+ Kb5 f5 c4 g5 h7 f4 e4+ f3 b7 a4 e6 d4 e5 d3 e7 d2 e8N a3 c6 a2 e6 h3 e7 Bf5 c7 Nc6 b8N Ne5 c8B Ra3 c5 Nc4 Qb3 d1B Nc6 f2 Bg2 f1B Ne2 Nb2 Be6 Bg7 Bf4 Be5 Be3 Bb8 Nd6 Bc2 e8N Ne7 Bf2 Be4 Nf7 Nd1 Bd4 Rg8 Nf6+ Kh4 Qa4 g4 Bf3 Rc3 Qa3 g3 Be3 Bg2 Rf1 Bh1 Bd4 g2 Rf2 g1B Rg2 Nc8 Ne7 Ba8 Be3 Rg6 Neg8 Ne7 Bd4 Be3 Rf2 Rg1 c6 Bg6 Bb6 Bd4 Bfg4 Bhe4 Rf4 Bef5 Bf3+ Bg4 Nd2 Bf5 Rc1 a1Q Rc2 Qa2 Nb1 Qb2 Rd2 Bg6 Ka6 Qb3 b5 Bf5 Bd8 Bg6 b6 Bh5 b7 Qb2 Ne5 Be8 Bb6 Kg5 Ka5 Bf5 Ka6 Ba7 b8N Qb3 Nbd7 Bb8 Bg4 Kh4 Nc5 Qb4 Bc7 Qb7+ Ka5 Kg5 Bb6 Kh4 Kb5 Kg5 Rf1 Kh4 Bf3 Kg5 Ng3 Kf4 Nf7 Ke3 Ne2 Rg4 Rh1 Kf2 Rg1 Rg5 Rg4 Kf1 Rf4 Rg1 Bg2+
3BnR2/RR2pb1n/r2qP1B1/PR1bnN1r/R2P1b2/3Q4/1KBN4/R4b1k b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 a6 Kd7 d4 Kd6 Kd2 b5 Kc2 f5 a4 c5 e4 f4 e5+ Kd7 d6 Kc6 h4 Kd5 d7 Ke4 g6 c4 g7 Qa5 d8R c3 h6 Ra7 h7 f3 Rd7 f2 h5 b4 e6 Rc7 a7 Qc5 a8R Rc6 h6 Qd6 Nf3 Nf6 g8B Bb7 Bd2 Na6 Nh4 Nc7 Bf7 Nce8 Ra2 Rb6 Ra7 b3+ Kc1 c2 Ba5 Rc6 Bd8 Ra6 a5 Bg7 Ra4 b2+ Kd2 c1N Kc3 Kf4 Bd3 Kg3 Bc2 Nd3 Rc7 Bc6 Rcb7 Bf8 Rg1+ Kh2 Qf3 Be4 Nd2 Bc6 Rb1 f1B Rba1 Be4 Qe3 Kh1 Bh5 Bg6 Qg3 b1B Kb3 Nb4 Kb2 Ba2 Qc3 Nc6 Qd3 Rg8 h8R Bb3 h7 Bf7 Bb6 Rg5 Bd8 Bh6 Rf8 Rb5 h8R Bf4 Rhg8 Nh7 Rg5 Rf5 Bg6 Bc4 Rg4 Rh5 Rg5 Bb3 Rd5 Ne5 Rdb5 Bd5 Nf5
N7/1NrPR2r/4r1Nb/Bk1q1bnp/3n3b/1N2NR2/NK1PP2Q/4RBb1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 g4 Kd7 b4 h5 b6 a5 b7 c5 b5 f5 e6+ Kd6 b6 f4 e7 f3 e8R a4 g6 a3 g5 c4 g7 Kc5 d6 a2 g6 c3 d7 c2 Nc3 Rh6 Re7 Rh7 Rh3 Rh6 Bb2 Nf6 g8N c1B g7 Nc6 b8N Ng4 b7 Rh7 Na6+ Kc4 b8N Qb6 Nc5 Qb5 Nba6 Nh6 Nc7 Nd4 Nf6 Bb7 g8N Rc8 Ng4 Be4 Na8 Rc7 Nb7 Bf5 Ne3+ Kb4 Qc2 f2+ Kd1 Qd5 Rf3 Nf7 Rb1 a1B Na2+ Kb5 Bc3+ Bcb2 Ba5 Ng5 Qc3 Rc8 Qc7 Bh6 Qh2 Rc7 Rc1 Ba3 Rb1+ B1b2 Rc1 Bd6 Ra1 Bc3 Kc1 Bg3 Rb1+ Bb4+ Kb2 Bh4 Re1 Bc5 Rg7 Ne4 Ne7 Ng5 Ng6 Bb6 Re7 Ba7 Bg2 f1R Bh3 Rf2 Bf1 Bc5 Nh3 Rg2 Nf2 Rg4 Nd3 Re4 Ndc1 Re6 Qh1 Bd6 Qh3 Bh2 Nb3 Bg1 Qh2
4QnBr/1KpNR1RP/2n2qN1/r7/B2P1BN1/1Bb2k1P/2n1B1b1/1b3b1B b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Ke3 g5 Ke4 b5 d4 b4 a4 g4 h3 f6 d6+ Ke6 d7 g3 a6 g2 a7 b3 a5 b2 a6 Nc6 h6 Bd6 h7 Nce7 Nf3 g1N Qe1 Nc6 Nbd2 Bc5 Nb3 Bb7 Nh4 Qb8 d8N+ Kd7 Kd5 b1B e4 f5 e6+ Ke7 e5 f4 Ng6+ Ke8 e7 Kd7 e8B+ Kc8 e6 f3 e7 f2 Bf7 Kd7 e8B+ Kc8 Bf4 Ne5+ Nc6 Ba3 Be2 f1B Nc5 Ngf3 Nd7 Bb2 Rg1 Ne7+ Kc5 Bc3 Bb3 Nd2 Bef7 Ndc4 Bg8 Ne3 Ra3 Nc2 Ra5 Nf7 Nce5 Nc6 Ng4 Ng5 Rg3 Kd8 Re3 Qc8 Re7 Ne6+ Kb5 Nf8 Rg7 Rb8 a8B Ke8 a7 Qd8 Ra3 Qf6 Kc5 Na5 Ra1 Bbg2 Bc6 Ra8 Bca4 Nc6 Kb5 Rb8+ Ka6 Rb5 a8B Ra5+ Kb7 Kd8 Nde5 Ke8 Nf7 Kd7 Nfe5+ Kd6 Re7 Ba2 Rd1 Bb1 Rd3 Bh1 Rg3 Bf3 Rf7 Bd5 Nd7+ Ke6 Rg7+ Kf5 Re3 Bdg2 Ree7 Qe5 Qh4 Ke4 Qf6 Qe6 Qf7 Qe5 Qe8 Qe6 N4e5 Qf6 Ng4+ Ne5 Beb5 Bh1 Ba6 Kf3 Be2+ Kg2 Ne3+ Kf2+ Kc8 Bf3 Bad5 Nc6 Kb7 Bh1 Bdc4 Be4 Bf3 Bd5 Bh1 Bdg2 Ng4+ Kf3 Be2+
1r2n2K/1Pb1B1N1/r2QNP1B/qbN2n2/1P2R1R1/1rn1k3/2BNpN1N/3n4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kd4 g5 h4 a5 b4 e6 f4 c6 b6 a4 f6 g4 b7 a3 f7 g3 h6 a2 f5 g2 h7 Qe7 h5 Qc7 h6 Qd7 Nf3 g1N Bd3 Nh3 Nh2 Ng5 Rg1 Qe8 Bc2 Ra5 Rg4 Be7 f8N Qd8 Nd7 Nf6 Nc5 Ra3 d3 Bd7 Nd2 Rf8 h8N Rb3 h7 Nh3 Ng6 Qa5 h8B Bd8 Ne5 Ne8 Bf6 Bc7 Rf4 Nf2 Neg4 Rh8 Rb1 a1R Bg5 Nh3 Nf2 e5+ Ke4 Raa3 d4 Ra2 Bd8 Raa3 f6 Ra1 Ne6 c5 Kf5 c4 Kg6 c3 Ng7 e4 Kf7 Bb5 Be7+ Kd7 d6 Kc6 d7 Kd5 d8N e3 Kg6 e2 Nde6 Nc6 Nc5 Rf8 Kh7 Rg8 Bd8 Ne7 Rg4 Nf5 Be7 Ned6 Rf4 Rb8 Rg4 Ne8 Kh8 Qb6 Rf4 Ra6 Rg4 Nf4 Ra1 Ng2 Ra5 Nge3 Ra3 Qa5 Ra1 Kc6 d5+ Kb6 d6 Kc6 d7 Kd5 d8N Ke5 Bd3 c2 Be4 Kd4 Rb1 Nc4 Nde6+ Ke3 Bd3 Ra3 Rb3 Nb2 Rc3 Rb3 Rcc4 Bb6 Rcf4 Bc7 Qh1 Nd1 Qd5 Qa1 Qd6 Qa5 Bb2 c1N Bc2 Na2 Bc1 Nac3 Rc4 Ne4 Nb1+ Nd2 Nf1+ Kf3 Rcd4 Ne4 Bh6 Ng5 Nh2+ Ke3 Rdf4 Ne4 Nd2 Nec3 Re4+
n1BN1k2/RPBp4/br3n1R/1Q1b2B1/K1B1n3/nB1B1N2/1q1P1P2/1r1b2R1 b - - 0 1 legal: proof: h4 b5 e4 a5 b4 f5 exf5 g5 hxg5 Bg7 bxa5 b4 c3 b3 Rh3 Bd4 Rh2 Bc5 Rh1 Bb4 cxb4 Ra6 Ke2 Ra7 Ke1 Ra8 g4 h5 a4 c5 b5 e5 g6 h4 f6 c4 b6 e4 a6 h3 g5 b2 f7+ Ke7 f8B+ Ke8 a5 h2 a7 c3 a6 c2 g7 e3 g6 Nc6 Nf3 Nd4 Bd3 Ne7 g8B Nd5 g7 Qg5 Nc3 b1B Na4 Nc6 Bd6 Nc7 Bb3 Qf6 g8B Ne7 Bgc4 Rh6 Bb2 c1N Nc5 Bc2 Nb7 Ned5 Qe2 Na2 Nd8 Rb8 a8B Nac3 a7 Bd1 Bb7 Na8 Bc7 Ne4 Ra6 Qc3 Rg1 h1B Ba3 Bg2 Be7 Qb2 Bg5 Kf8 Bg3 Nac7 a8R Ndf6 R8a7 Na8 Bc7 Rg6 Bc6 Bb7 B6b5 Bd5 Bc6 Bh3 Bb7 Bhe6 Bc8 Bb7 Ra5 Ba6 Rd5 Rh6 Rd6 Bd5 Rc6 Rh1 Qf1 Ne8 Rh6 N8f6 Qh3 Rb7 Qe6 Rb8 Qc6 Rb7 Qb5 Rb8 Kf1 e2+ Kg2 e1N+ Kf1 Ke7 Ba2 Ba4 Ke2 Rb7 Rg2 Rf1 Rg1 Kf8 Ke3 Nc2+ Ke2 Na3 Ke3 Qc1 Kd4 Bc2 Bab3 Qb2+ Ke3 Nc3 Kd4 Rb1 Kc5 Bd1 Kb4 Nce4 Ka5 Rb8 Ka4 Rb7 Be5 Rc7 b7 Rc6 Bef4 Rb6 Bc7
1n4N1/KN1r2BR/1nP4q/2b2n1k/1P2Bn1p/2R1N2N/QNrP2Nq/5b1B b - - 0 1 illegal: No proof kernel
1q3B1B/3k3R/bpr1Pr2/1N1KQB1R/1RR1nR2/1PN1qn2/b5P1/1n3n1R b - - 0 1 illegal: No possible last move
rB1B1B1R/4nr1R/P2B4/1B1PQqbb/3pqR2/1k3q1B/1q1N2P1/1N1n2K1 b - - 0 1 illegal: No proof kernel
1nk2N2/K1n3n1/2pq3R/N2N1r1R/QBBn3P/2P2BB1/q1P2nBb/4B2r b - - 0 1 illegal: No extended proof kernel
N6R/nBP2b1K/1R1bn1RP/3Brq1p/Q1RB1NnP/1kn5/2q5/R3q1R1 b - - 0 1 illegal: No possible last move
r2b2B1/6p1/2rQP3/N3bBBn/1brR1q2/Rb1K2PR/Bk3BP1/1r2N1B1 b - - 0 1 illegal: No proof kernel
qRN2n1r/5r1b/QP1N1bPK/rpB5/BB1BP1p1/2NR4/Bk1nB3/2n5 b - - 0 1 illegal: No proof kernel
1B1RB3/4rPRP/pb1NbN2/2q2k2/2BRr1r1/p6R/P1R1n1R1/2Q1nb1K b - - 0 1 illegal: Other
1kBbB1q1/1R1rP3/1nRB4/2Br1rBP/2b5/N1B5/1pNPQpK1/3Rb1n1 b - - 0 1 illegal: No proof kernel
2n3NK/2N1PPpN/1RBn1B2/b1b3Pq/1B6/n2b1p1k/NR3NN1/Q1r4r b - - 0 1 illegal: No proof kernel
1K1RB3/7B/2N2kBP/bp1qB2r/3Npn1R/P2rPQ1n/3Bb1qB/2R4q b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 Kf2 f5 Kf3 Kf7 Kf4 c5 Ke5 b5 h4 c4 d4 c3 e3 c2 d6 f4 g6+ Kg7 d5 f3 a6 e6 a7 f2 a3 Qd7 Bd2 c1Q Nf3 Qb7 d7 Qbc6 d8R Nf6 d6 Qd7 h6+ Kg8 g7 Kf7 g8B+ Kg6 h7 Qc4 h5+ Kg7 Rh4 Qb7 d7 Ne4 Nd4 Qbc6 Bd3 f1Q Nc3 Ng5 Qf3 Na6 Nd5 Qh1 Nb4 Nc7 Bg6 Nd5 Rc1 Nh3 B8f7 Ndf4 Be8 Rb8 a8B Qb7 Nbc6 Bb4 Bb1 Qe2 Bbg6 Ba5 Kd6 e5 h6+ Kf6 Bh5 Qeg2 Bhg6 Rg8 h8B+ Rg7 Nb4 Qe4 Nbc6 Rb6 Kc7 Qd5 Bh7 e4 Beg6 Ra6+ Kb8 Ra7 Re8 Rc7 d8B+ Re7 Bc7 Re5 Bb7 Rh5 Rd8 Bg4 Bc8 Qb3 Bd7 Qd5 Qf2 Be2 Bde8 Kg5 Qf3 Re7 Bhe5 Rd7 Bed6 Kf6 Nf5 Ne6 Bh2 Nef4 Nfd4 Qf5 Nc2 Rd3 N2d4 Qd5 Be5+
2n1K3/bn2QrrN/1Bp5/1Pp2P1N/RP1k1R2/1q1n2qB/2bRR1R1/4RB2 b - - 0 1 illegal: Other
4R3/RqNR1R1P/1q2B2b/1p1bR1P1/4B1p1/2B2PnN/r5k1/1QKRqn1r b - - 0 1 illegal: No proof kernel
1nB2N1K/1b1q1Qp1/RB3N2/B1BNR2P/2P2rP1/Bk3nb1/p1r2qq1/1B6 b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 h5 e4 c5 dxc5 h4 exf5 Qc7 Qh5+ Kd8 Qxh4 Ke8 Qh7 Qd8 Kd2 Kf7 Kd3 a5 Ke4 e5 g4 a4 h4 a3 c4 d6 b4 Nh6 f4 Be6 c6 Qe8 h5 Ra5 f6 Ra6 b6 Ng8 b5 Bc8 f5 Bd7 b7 Qc8 c7 Ra5 b6 Ra6 Nc3 Ne7 Bd3 Bc6+ Nd5 Ng6 Nf3 Qd7 c8B Nh4 Nd2 Nf3 Re1 Be7 Re2 Rf8 Bb1 Bd8 Qh8 Bc7 Qg8+ Ke8 f7+ Kd8 Ke3 e4 Kf4 e3 f6 Ra7 Re1 e2 Ne4 Ra4 Ra2 Rb4 Bd2 Rb2 Ba5 Rc2 Ra1 Nd4 Kg5 Nf3+ Kg6 a2 Kh7 Bb5 Rd1 e1Q Kh8 Ba6 Rd3 Qf2 Ra3 Nc6 b8B Bb7 Ba7 Nb8 Bb4 Qg2 Ra6 Qf5 Ba3 Qd7 Ne7 d5 Bc5 d4 Nd5 d3 Ba3 Bc6 b7 d2 Bb6 d1Q Ba5 Qdf1 Bc5 Re8 f8N Qff2 f7 Re7 Nef6 Re4 Bab4 Bg3 Ba5+ Qc7 Bab6 Rf4 Ba5 Nd7 b8B Bb7 Bba7 Nb8 Nb6 Qc6 Ba3 Kc7 Bc5 Qd4 Ba3 Qdc5 Nbd5+ Kd6 B7b6 Qe8 N8d7 Kc6 f8B Qcf2 Bfc5 Qe6 Nf8 Qd7 Bd4 Qgg1 Qf7 Qgg2 Bc1 Kd6 Bdc5+ Ke5 Ng8 Ke4 B1a3 Kd3 Ngf6 Qe2 Nb4+ Kc3 Nbd5+ Kb3 Ng8 Qee8 Ngf6 Re2 Bd3 Qe3 Re1 Qef2 Bb1 Rc2 Re5
3R4/BKNQ4/6pr/p2R1R2/nR3Pr1/PNR1R2P/B1r4B/b1qk1nbr b - - 0 1 legal: proof: c4 f5 b4 h5 e4 c5 exf5 b6 bxc5 h4 d4 h3 d5 Nc6 gxh3 Ba6 h4 Bb7 h5 Nb8 Bd2 Nf6 Bc1 Bc6 dxc6 Ng8 Kd2 Kf7 Kd3 Kf6 Ke4 e5 Kd5 a5 a3 d6 h6 g6 c7 e4 c8R b5 c6 e3 h7 Kg5 c7 Kf4 c5 b4 c6 b3 f6 b2 h3 Nd7 f7 Ra7 Nc3 b1R Nb5 Nh6 Ne2+ Kf3 Rb8 Nc5 c8R Ng4 c7 Nh2 Kc6 Qg5 Rd8 d5 c8R d4 Nc7 d3 Rb4 Bg7 f8R+ Bf6 Bd2 Na4 Nc1+ e2 Bf4 d2 Nb3 Bg7 Ra2 Ba1 Rf5 Ra6+ Kb7 Rc6 Rdd5 Rc2 Rcd8 Rbb2 Rg1 Rc4 Rg2 Rbc2 Be3+ Qf4 Ba7 Rd4 Rgg5 Rdc4 Rfe5 Qe3 Rb2 Rg4 Rb1 Qc3 Rc1 Qe3 Rgf5+ Qf4 Qe1 d1R Qd2 e1B Bc4 Nf1 Qd4 Bec3 Ree8 Bcb2 Qg7 Bd4 Qd7 Ng3 Re6 Rh1 Re4 Nf1 Re7 Rg8 h8B Bc5 Bd4 Rh8 Be5 Rh6 Ree8 Ke4 f3+ Ke3 Re6 Qg5 Bh2+ Kf2 Re3 Bcd4 Rd3 Ke2 f4 Bg1 Nc5 Qf6 Ba2 Qc3 Nb3 Qe1 Rc3 Qd2 Rd1 Qc1 R1d3 Ke1 Nd2 Ke2 Re3+ Kd1 Nb3+
1B1BbQ2/N2b2PB/6p1/1p2nrk1/1PrBnRPN/N1n4n/4q1RB/B6K b - - 0 1 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g6 a4 Ba6 h4 Nc6 h5 Bg7 a5 Qb8 h6 Bc8 hxg7 Qb6 axb6 Nb8 d4 Kf7 f4 Kf6 Kf2 h5 g4 a5 Kg2 c5 b4 e5 d6 e4 b7 c4 d7 h4 d8B+ Ne7 d5 c3 d6 c2 d7 a4 Nf3 a3 Bc4 e3 Rg1 e2 Kh1 e1Q Bg8 a2 Na3 h3 Bh7 h2 Nh4 Qe2 Rg2 Nc6 b8B Ne5 Bb2 c1N Qf1 Nd3 Qf3 Re8 Rf1 Rf8 Ba1 Ra7 Rff2 Rc7 Qa8 Rc4 Rf3 Kf7 f6 Nd5 f5 N3f4 Rff2 Nh3 Rf4 Qf2 Be7 Nc3 d8N+ Ke8 Bed6 Bd7 Nc6 Kf7 Na7 Qb2 Bc5 Qe2 Bd4 Be8 Bb2 a1N Qf3 Nb3 Ba1 Bd7 Qf2 Ke8 f7+ Ke7 f6+ Ke6 Qf1 Nd2 Qf2 Nde4 Qf3 Rfc8 f8B R8c5 f7 Be8 Bfd6 Rd5 Nf5 Kf6 f8B Kg5 Qf2 Nf7 Nh4 Rf5 Rg1 Ne5 Bfe7+ Nf6 Bd8 Bd7 Kg2 h1B+ Kh2 Bd5 Rg2 Bf7 Kh1 Bfe8 Rf3 Nf7 Bh2 Ne5 Rf4 Na4 Bdc7 Nc3 Rf3 Nfe4 Bd8+ Rf6 Qg3 Nf7 Qd6 Ne5 Rf4 Nd3 B8b6 Rf5 Qf8 Ne5 Bd8+
3Bb2R/1PBpqN2/r3BRp1/6K1/1nN1PQBn/k5rB/1b5P/1b1bB1N1 b - - 0 1 illegal: No proof kernel
6Nn/1kb4B/1bp1r1N1/BnPRB2p/BB5K/2Q4P/R1P3qq/1qBR3b b - - 1 2 legal: proof: d4 a5 g4 b5 a4 f5 gxf5 e5 axb5 Ra7 dxe5 Ra6 b3 Rc6 b4 Rc5 bxc5 Bb7 Bf4 Ba6 Bc1 Bc8 f4 h5 Kf2 g5 Kg3 d5 e4 Kd7 e6+ Ke7 e5 d4 f6+ Ke8 h3 a4 b6 g4 e7 Kd7 e8R Kc6 e6 a3 e7 a2 f7 d3 f5 d2 b7 Na6 b8B Nh6 f6 Bf5 Nc3 Qd5 Bd3 Qc4 Nf3 Bh7 Kh4 g3+ Ne4 g2 Rd8 g1Q e8B+ Kb7 Ne5 Qg2 Ng6 Be7 f8B Nf7 Qf3 d1Q Rd5 Bd8 Ba4 c6 Be7 Re8 Be5 Bb6 Bd8 Nh8 f7 Nc7 f8B Nb5 Bfh6 Re6 Bhd2 Qd4 Bdc7 Q4g1 Nf6 Q1h2 Ng8 Qdg1 Bb4 Q1f1 Rb1 a1B Rb2 Qfg1 Ra2 Qd1 Bh6 Qb1 Bc1 Bc3 Rg1 Bd2 Rd1 Bf4 Nf8 Be4 Ng6 Qgg1 Qe3 Bh1 Bf5 Qgg2 Qc3 Ba7 Bca5 Bb6 Bd4 Bfc7 Be5 Nf7 N6e7 Nh8 Bh7 Qe2 Ng6 Qf1 Bcf4 Qfg2 Bc1
RNN2Q1q/2rB1p1B/b1qR2nN/P3NPbP/2q1pNN1/k5Kn/1n6/4B3 b - - 0 1 legal: proof: e4 d5 g4 a5 b4 h5 bxa5 d4 gxh5 d3 cxd3 Bh3 d4 Bd7 d5 Bc8 d4 b5 e5 Kd7 d6 Ke6 d7 Ra6 d5+ Kf5 Nc3 Rb6 Nb1 Rd6 exd6 Kf6 h4 Ke5 f4+ Ke4 Kf2 g5 a4 c5 a6 e5 a7 c4 a8B c3 h6 c2 h5 b4 h7 b3 Bb5 b2 Nf3 g4 Kg3 Qe7 d8N Qe8 d7 Ne7 d6+ Nec6 Nc3+ Kf5 Ne4 b1Q Nb7 Ke6 d8N+ Kd7 Nd4 Qb4 Nf5 Qe6 Nh6 Qe8 Ne6 Qc4 Nf2 Be7 Bd2 c1Q Be1 Na6 Qc2 Rg8 h8N Nc5 Ng6 Bg5 Qb2 Rh8 Qb4 Nd3 Rg1 Nb2 a5 Qd2 Rd1 Qdd5 Ba4 Qdc5 Bc2 Ne7 Rd3 Kc6 d7 Q5d4 d8N+ Kd5 Nd6+ Qec6 Rd2 Bb7 Nc8 Ba6 Bf5 e4 Ne5 Re8 Bh7 Ng6 Qf8 Re7 f5 Rc7 Rg2 Be7 Nf4+ Kc5 Rg1 Kb4 Rd1+ Ka3 Rd2 Qdd7 Rd6 Bg5 Bb7 Qde6 Rg2 Qce8 Bc6 Qed5 Bd7 Qdc6 Qg7 Qh8 Qf8 Q6c5 Ndc6 Q5d5 Nb8 Qdc6 Kh2 g3+ Kh3 Qb7 Nfg4 Qbc6 Rc2 g2 Kg3 g1N Rc1 Nh3 Rb1 Na4 Rb7 Nb2 Ra7 Qb4 Ra8 Qd4 Nd5 Qdc4 Nf4
R2nrRR1/pN4k1/K4Rq1/P2PnpN1/P1r1qq1R/1N3r1Q/2B5/Bb5R b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 d5 cxd5 h4 a4 Ba3 bxa3 h3 gxh3 Qd7 h4 Qd6 h5 Qd8 h4 Kf8 e4 c5 Ke2 b5 Kd3 f5 a5 g5 e6 b4 Kc4 b3 Kb5 b2 d6 g4 e7+ Kg7 e8R c4 d7 g3 h6+ Kf7 e5 g2 e6+ Kf6 h5 c3 h7 c2 e7 Kf7 h6 Kf6 Nf3 g1Q Ng5 Qe3 Rf8+ Kg6 e8R Qee7 Qg4 Qe4 Bd3 Qf6 d8N Qfd4 Nb7 Be6 Qh3 Nd7 Ka6 Ba2 a4 Qf4 Re6+ Qf6 Be4 Ne7 d4 Rd8 d5 Nc6 Nd2 b1Q Bb2 c1R Nb3 Rc4 Bc2 Re8 Rd6 Rg8 h8R Nde5 h7 Kg7 Re6 Qh6 Ref6 Nd8 Bc3 Qe1 Rc1 Qg6 Ba1 Qb4 Rcg1 Bb1 Rg4 Rc3 Rh4 Rf3 Rh5 Qbe4 Rh4 Ndc6 Qg3 Rc8 Qh3 Rc7 Ra8 Re8 Rhf8 Nd8 h8R Rc4 Rhg8#
3BBB1k/R2p4/P3qPn1/r2NbR2/nbqP2K1/3bp3/1B3N1q/N2B1QB1 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Ra7 c3 Rb7 c4 Rb5 cxb5 Bb7 Qb3 Ba6 Qd1 Bc8 Ke2 Kf7 Kf3 e5 a4 g5 h4 Kg7 d4 c5 h6+ Kh7 b6 c4 a6 b3 h5 c3 f6 e4+ Kg4 b2 f4 e3 f7 c2 a5 Nc6 a7 Be7 f8B Bb4 a8B Be7 f5 Nb8 b7 Qc7 Nd2 b1Q Be2 Qc5 Nb3 Qa2 Qf1 Qc4 Bd1 Nc6 b8B Ba6 Bh2 Bf6 Nh3 Qd5 Bg1 Nce7 Nf2 Ng6 Bb2 Qe6 Bd5 c1B Rh3 Bd3 Rf3 N8e7 Be4 Kg8 h7+ Kf7 h6 Bd2 Bd5 Be5 Be4 Rg8 h8B Nd5 h7 Nc3 Bf6 Na4 Bd8 Bb4 Bd5 Rg7 h8N+ Kg8 Be4 Qc4 f6 Rh7 Rf5 Rh5 Bd5+ Kh7 Bf7 Qe6 Nc5 Qac4 Be8 Kg8 Nb3 Kh7 Nf7 Kg8 Nh6+ Kh7 Kf3 Kh8 Ng8 g4+ Kg2 g3 Kf3 g2 Ne7 Qd6 Nd5 Qe6 Ra2 Rg5 Na1 Rh5 Bh2 g1Q Ra3 Qh1+ Kg4 Bc3 Bg1 Qh2 a6 Bb4 Rb3 Ba3 Rb6 Bb4 Rb7 Qc1 Nb6 Qcc4 Rc7 Bg3 Ra7 Qec6 Rf3 Ra5 Nd5 Be5 Rf4 Qe6+ Rf5
6B1/nQ1p2k1/npBPbBPN/b2B1q1B/1B1P4/K2n3R/n1R2N1n/2r2N2 b - - 0 1 legal: proof: c4 g5 e4 f5 exf5 a5 h4 a4 hxg5 a3 d4 Ra7 bxa3 Ra8 a4 Ra6 a5 Rg6 Bd3 Rd6 Bf1 Rd5 cxd5 Bh6 Bd3 Bg7 Bf1 Bf8 Kd2 Kf7 Kc3 e5 Kb3 h5 g4 c5 f4 b6 a4 h4 g6+ Kf6 g7 h3 a6 e4 a5 e3 a7 h2 a8B e2 g5+ Kf7 a6 e1N a7 Ne7 g8B+ Kg7 f6+ Kg6 f7 c4+ Ka3 c3 f5+ Kg7 f6+ Kg6 Ra2 c2 Nd2 Rh3+ Qf3 Bg7 f8B Rh5 f7 Bb7 Be2 Nd3 Nh3 Bh6 Nf1 Nc8 Bb4 Na6 f8N+ Kg7 d6 Qf6 g6 Bd2 Nh7 Rc5 N7g5 Bd5 Nf7 Be6 Nf2 Qf5 Bc6 Bc3 a8B Na7 Bg5 c1N Rc2 Na2 Nh6 Be1 Rg1 h1N Rg3 Bd2 Rh3 Ng3 Qd5 Be1 Bh5 Bc3 Nd2 Nf1 Bh4 Nh2 Nf1 Bd2 Qf3 Be1 Bd5 Rc8 Bac6 Bc3 Bc5 Ba5 Bb4 Rc7 Bf6+ Kf8 Bb5 Rc8 Rc6 Ndc1 Bb3 Nd3 Rc1 Nac5 Qb7 Na6 Bd5 Rc5 Bbc6 Rc4 Re1 Rc5 Re2 Rc1 Bd8 Kg7 Rc2 Nf3 Be7 Nh2 Bf6+
3rnB2/2Q1r2k/1q2pbB1/rN1P4/PRBn3p/2n3RP/nB1B2KB/R4N2 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Kd7 f6 Ra6 f5 Qe8 f7 Rd6 f6 Qd8 bxa3 Rb6 a4 Ra6 a5 Ra8 Nc3 Kd6 Nb1 Bf5 gxf5 Kd7 Kf2 h5 d4 c5 a4 g5 h3 b5 a6 h4 d6 g4 a7 b4 Ne2 b3 Kg2 e6 Ng3 b2 Rg1 c4 Na3 b1R Bb2 c3 Nb5 c2 Bc4 c1N Qc2 Nc6 Nf1 Be7 f8B Ke8 d7+ Kf7 Bh6 g3 Bd2 Qb6 d8B Na2 Bc7 Rh7 d5 Rd8 a8B Nd4 Bc6 Kf8 f7 Kg7 f8R Nf6 Qc3 Ne8 f6+ Kg6 f7 Bf6 Rg8+ Rg7 f8B Kh7 Qa5 Re7 Rg4 Rc1 Qa7 Rc2 Be5 Rc3 Qc7 Rc2 Kh1 g2+ Kh2 Rc3 Rg3 Rc1 Rh1 g1N Kg2 Nge2 Rh2 Ng7 Be8 Rc3 Bh5 Ne8 Rh1 Rb3 Rg1 Nec3 Bg6+ Kg8 Rg4 Kh8 Bh2 Kg8 Nd6 Rb5 Rg3 Ra5 Nb5 Nb1 Rb3 Nbc3 Rb4 Kh8 Kh1 Kg8 Rg3 Kh8 Kg2 Kg8 Bf7+ Kh7 Bg6+
2rRrRb1/r1NQ2R1/6Kn/2B1PB2/1R3P1N/1q1npn1k/Rp2P3/1B3Rn1 b - - 0 1 illegal: No possible last move, all moves rejected
2krq2R/3bnqrR/3R4/5B1R/N3n1Q1/KRr1p1P1/2N1PpP1/BR1r1N2 b - - 0 1 illegal: Other
2r3R1/qrP1n3/1np4N/2P1Qq2/kr3B1p/2rB4/NbPB3B/1KBBR1N1 b - - 0 1 illegal: No proof kernel
1bR2K2/Br1N1p1N/2RR2rB/P1Q1n1p1/3b1q2/2P1pb2/B1P1BB1n/5Bk1 b - - 0 1 illegal: No proof kernel
4RB2/2pKn1R1/PkrnN3/1NQBb1P1/1np2R1P/2R2b1p/3R3R/2rq3N b - - 0 1 illegal: Other
1k1Kb3/1PN4r/1BP1QR1N/P4ppN/R3r3/3nB2B/Nnq2Nrp/1Nb5 b - - 0 1 illegal: No proof kernel
3BR2R/nP1rnP1K/5bR1/pNk1q1P1/2pb2r1/2Rp4/B1RQ2b1/1R1N1N2 b - - 0 1 illegal: No proof kernel
3nb1QR/P1N1RPR1/1R2B3/1p3K2/qb2P3/Rn2B3/2N1kpbp/3rrB1R b - - 0 1 illegal: No possible last move
3Br1B1/5p1q/Rn1RP2p/4Q1n1/2R1Rp1P/R2B1RNq/3KP1b1/2r1Nb1k b - - 0 1 illegal: Other
1nrBQ3/1qbb1n2/1k1P2N1/1pRNbRp1/1KRN1n2/1BNp4/3PP3/2N3N1 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 h5 b4 a5 bxa5 b5 g4 d4 gxh5 Ra6 Bg2 Rd6 Bf1 Rd5 cxd5 Bd7 Nf3 Bh3 Ng1 Bc8 h4 Kd7 a4 c5 d6 Kc6 h6 g5 e6 f5 h7 f4 h5 f3 e7 c4 e8R c3 a6 c2 a5 Kc5 a7 Qb6 a8N Qa6 h6 Bg4 Bg2 Be6 Ra4 Bg7 Bb2 c1B Qb3 f2+ Kd1 f1N Kc2 Bc8 Bd5 Qb6 a6 Nc6 a7 Nf6 Rf8 Rg8 h8N Ne4 h7 Qa6 Nc7 Nc3 a8N Nh2 Nf7 Na5 h8N Bh3 Ne5 Ne4 Nc3 Ng4 Nb6 Nh6 Nhg6 Qb7 Rf5 Nc6 Be6 Nf6 Nbd5 Nb8 Nd3+ Kc6 Qb4 Re8 Kb3 Rc8 Bg8 Bh8 Ne6 Nh5 Qa5 Bg4 Qd8 Bf6 Kb4 Nf4 Qe7 Nf7 Qe8+ Qd7 Ba1 Bb2 Nc1 d3 Nd4+ Kb7 Rh4 Bd8 Ra6 Bc7 Rc6 Ka7 Rc4 Qc6 Rc5 Qb7 Nf6 Nh8 Bb3 Nf7 Nfd5 Bh3 Re5 Bd7 Rf5 Nh5 Nc6+ Ka6 Rhc4 Nf4 Nd4 Nd8 Nc2 Nfe6 Ne4 Bd4 Bb2 Nf7 Ba1 Bh8 Bf6 Nf4 Bd8 Be5 Nec3 Ka7 Nd4 Ka6 Nf6 Kb6 Nfd5+
R3b3/1nR2k1p/2b2B2/NB1p3r/p1BQB2P/1Np2Nr1/1r1PPB2/3BK1n1 b - - 1 2 illegal: No proof kernel
2Bk3B/3N1Bpb/KP4nb/1Nq2nQp/3r2P1/BrbB1R1q/rB5P/2R3N1 b - - 0 1 illegal: No proof kernel
2B1bB2/pBrNbr1k/3qp2q/R5nR/1N2BP2/P3K1n1/1B1nP3/3rNQ1B b - - 0 1 illegal: No proof kernel
3B2r1/Rb2r2p/rn1Rpb1P/qNpb1N2/5P1B/2PN1B1K/B1BkQ3/B2n4 b - - 0 1 legal: proof: e4 d5 exd5 a5 g4 f5 gxf5 Ra7 b4 Ra6 bxa5 Ra8 f4 Kf7 Kf2 Kf6 Kg3 b5 h4 g5 d4 c5 a4 b4 h5 g4 a6 b3 h6 b2 a7 e6 d6 Bd7 d5 Bb5 d7 Na6 c3 Nb4 a5 Qc7 d8B+ Be7 d6 Ba6 d7 Qc8 Na3 b1B Nb5 Nd3 Qe2 Qb8 Bb2 Qe5 Nf3 Rb8 a8B Qc7 Be4 Rb7 Ne1 Nf2 Bc2 Nd1 Nd3 Ba2 Kg2 g3 Kh3 g2 Rg1 Kf7 f6 Kg6 f7 Kf5 f8N Bf6 Ng6 Bd5 Be7 Ra7 d8B Bab7 a6 Qa5 Ra2 Ra8 Ba1 Ra7 Rh1 g1R Bg2 Ra8 Bf3 Rg5 a7 Rg2 Bf8 Ne7 Rf1 Nc8 Bfe7 Nb6 Ra3 Bg7 Bh4 Rg8 Ra4 Bf6 Ra2 Rc8 a8B Rc7 Ra4 Re7 Rd4 Be4 Rd6 Bec6 Bd5 Rg1 Ba2 Bd5 Nge5 R1g7 Nc4 Rg2 Ne3+ Ke4 Rg1 Rf2 Rg7 Rg2 Qd2 Kf3 Nf5 Rg1 Qc1 Ke2 Qb2 Kd2 Rf7 Ba6 Bb7 R1g7 Ba8 Ra7 Bc6 Bb7 Rc7 Ra6 Re7 Bb3 Bf3 B3d5 Rc7 Re7 Rcd7 Bbc6 Ra7 Ba8 Qb4 Bac6 Qe4 Bb7 Qe2#
1KnB1BQ1/1b2p1rp/3n1BR1/1Nqr1P1P/4PN1p/BBbB4/5NqR/1q3k2 b - - 0 1 illegal: Other
6K1/1R1p1r2/3R1q2/k1p2P1N/BBRNpnb1/n6N/1bP1P2b/1QrN1NNq b - - 0 1 illegal: No possible last move, all moves rejected
4K2N/1p2np2/1PBPbPN1/3B4/2B3Q1/RprnBn1R/1qB2nrb/4BNk1 b - - 0 1 illegal: Other
1K4Bn/1N1R1b2/2bpRpRr/rn2BPr1/3bp3/1b1PP3/RN3Q1R/1R2N1k1 b - - 0 1 legal: proof: b4 a5 h4 g5 hxg5 b5 bxa5 b4 c4 c6 Nf3 Qb6 Ng1 Qb5 cxb5 Bg7 Nc3 Bh6 Nb1 Bf8 g4 h5 f4 e5 Kf2 Ke7 Ke3 Kd6 Ke4 Kc5 a4 d6 b6 b3 f5 f6 g6 b2 a6 h4 a7 h3 g5 h2 b7 Na6 b8N Nc7 a5 Bb7 e3 Nd5 a6 Nh6 g7 Nb4 g8R Bg7 g6 Bf8 g7 Nc2 Qe2 Be7 Nf3 Nd4 Ne1 Nf7 Rd8 Nb5 g8R Rh6 Nc3 Nh8 Rd7 Bd8 Qf2 Bb6 Nd1 b1B+ d3 Bc2 Rb1 Bb3 Bg2 Kb4 Bb2 Bd4 Rg6 Bf7 Bf3 c5+ Nc6+ Kb3 Bg2 c4 Bf3 Bc8 Nd8 c3 Nb7 c2 Bg2 c1R Bc3+ Ka4 Nb2+ Kb3 Bf3 Be8 Kd5 Bf7+ Kc6 Rc2 Qg3 Rg2 Qf2 Rg5 Bd5+ Ka3 Rf1 h1B Rg1 Bf3 Rg2 e4 Rh2 Bd1 Bc4 Bb3 Bd5 Bc5 Bd4 Kb4 Be5 Bd4 Bc4 Kc3 Bd5 Be8 Bg8 Bef7 Na5 Rb8 a8R Rb7 Rb8 Ra7 Nb7 Ra8 Re7 Bce6 Rd8 Bed5+ Kd7 Ra7 Kc8 Bc6 Re6 Rg2 Qg1 Kd2 Kb8 Ke2 Rd7 Rf2 Qg5 Kf1 Qh4 Rg2 Nd8 Rc7 a7 Kg1 a8R Rg5 Ra2 Ra7 Nb7 Ra5 Qf2#
1N3b2/2Pn1n2/3nNP1k/Rp6/b1Q2N1N/bR1Rq1N1/KB1Pq3/1B2R3 b - - 0 1 legal: proof: b4 h5 c4 c5 e4 d5 cxd5 a5 bxa5 f5 exf5 g5 a4 Ra6 g4 Rc6 gxh5 Rhh6 Nh3 Rb6 Ng1 Rb5 axb5 Rc6 bxc6 b5 Ra2 Ba6 Ra1 Bc8 f4 Kf7 h4 Kg7 h6+ Kh7 d6 e5 h5 e4 c7 g4 d7 e3 f6 e2 f5 g3 f7 g2 a6 c4 f6 c3 a7 c2 a8R Bb4 f8N+ Kh8 Ne6 Kh7 Bb2 c1B R8a3 Ba5 Rb3 Bb4 Nf3 g1N Nh4 Ba6 Nc3 Qc8 d8N Nh3 Ra5 Nd7 Ne4 Bd6 Qc2 Nb8 Ng3+ Kh8 Qc4 Kh7 Nc6 Nd7 Nb8 Nf2 Bh3 Qe8 Bf5+ Qg6 Be4 Bb7 Bb1 Ne4 Rf1 Bf8 Rff3 Nd6 Rfc3 Ne7 Rd3 Kg8 h7+ Kf7 h8R Qh6 Nc6 Qe3 h6 Ng6 h7 Nge5 Nb8 Bf3 Rg8 Bh5 Rg4 Bg6 h8N+ Kg8 Rg5 Nef7 Re5 Kh7 Re4 Bh5 N8g6 Kh6 Ngf4 Qd4 Bc3 Ba3 Bb2 Qc3 Kf2 Qe5 Ke3 Qg5 Kd4 e1Q Kc3 Bd1 Re5 Qf1 Re1 Qe2 Nfh5 Qc5 Nhf4 Qce3 Ba1 Bc5 Kb2 Ba3+ Ka2 Bc2 Bb2 Bd1 Rb4 Ba4 Rbb3
B2B1BQ1/1R2KPN1/2r5/p2b4/1Pb1RPN1/n3b1R1/qBkBpR2/3q4 b - - 0 1 legal: proof: b4 a5 h4 b5 a4 f5 axb5 g5 hxg5 d5 e4 d4 exf5 d3 cxd3 Ra7 d4 Nh6 Rxh6 Nd7 d5 Nf6 Rh2 Ra6 Rh1 Rc6 Bb2 Rc1 Bxc1 Ng8 Ke2 Kd7 Kf3 Kd6 Kg4 Ke5 f4+ Kd4 b6 e5 d6 c5 g6 c4 b7 c3 b8B c2 d7 h6 f6 h5+ Kf5 h4 Ke6 e4 g4 h3 f7 h2 g7 e3 g5 Rh7 g6 Qb6+ Bd6 Rh8 Nc3 Qc6 Na4 Nh6 g8R Ba6 d8B Qg2 g7 Qe2 Nh3 Kd3 Nc5+ Kc4 d4 Kc3 d5 Qb5 Nf2 Qc6 Bg2 Rh7 Bf6+ Kc4 Ra2 Be7 Rb8 Bd8 g8R Qa4 Bfb2 Ng4 Bf8 Ne5 d6 Bb6 d7 Rh6+ Ke7 Rc6 Re1 h1B Ne6 Kb3 d8B Nc4 Bd2 Na3 Rb7 Bc4 Qg4 c1Q Ng7 Qd1 Qc8 Ba7 Ng4 Kc2 Re2 Bd4 Rf2 Qb3 Ra1 Qa2 Bd5 Qf3 Re1 Qd1 Rh8 Rb6 Ra7 Bc3 Qa6 Nb5 Rh3 Bg2 Ne8 Na3 Ba8 Rf6 Rg3 Bd4 Rb7 Bgd5 Qd6 Rh6 Qf6 Rg6 Qg5 Rc6 Qg8 Bb6 Ng7 Ba7 Rh1 Bb6 Rh6 e2 Re6 Be3 Re4
K1R5/6pp/P1RRR1PB/1n2p1P1/2q3Np/R1b1Q2b/3pQ1N1/2k1RB2 b - - 0 1 illegal: Other
RN1k3N/1R1q4/3q1r1Q/qnB1P3/r2R2P1/PBNnb1R1/3rN3/1q4RK b - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 a5 g4 f5 b4 e5 fxe5 Ne7 bxa5 Be6 h3 Bf7 Bb2 Ng8 Bc1 Bh5 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Qc8 Bh3 Qd7 Bf1 Qd8 d4 c5 e4 h5 e6 b5 f6 h4 e5 h3 d6 g2 Kf2 c4 a3 c3 e7 h2 d7+ Kf7 e8R b4 d5 c2 d6 b3 a6 b2 a7 Be7 Ne2 g1R Qd2 Nc6 Nbc3 b1Q Qh6 Nb4 Be3 c1Q Bc5 Qa5 d8R Qd2 d7 Rg2+ Kf3 Bf8 Rg1 h1Q Rb8 Qh7 Red8 Ne7 Rb7 Nec6 Re1 Ke6 f7+ Qg6 Rb1 Nd3 R1b3 Rh2+ Bg2 Nd4+ Kg3 Bd6 f8N+ Ke7 Bd5 Nb5 Bc4 Rf2 Bf7 Rf5 Bc4 Qc6 Kh2 Rf6 Bd5 Qe1 Kg2 Qb1 Kh1 Rc8 a8R Qf5 Bb6 Bc5 Ba7 Bd4 Bc5+ Qd6 Bf7 Be3 Bc4 Qe6 Ng6+ Kf7 Bd5 Rf8 Nh8+ Ke7 Bc4 Rf4 Bd5 Ra4 Ba7 Nb4 Na2 Bf4 Kg2 Qc5 Rg3 Rf6 Bb3 Nd3 Kh1 Be3 Bb6 Qd4 Ba7 Rc2 Nac3 Rd2 Bc5+ Qdd6 Rf8 Rff4 d8N+ Qd7 Rf5 Rf3 Rf4 Ke8 Rd4 Rf6 Nc6+ Qb8 Raa7 Qbd6 Nb8 Kd8 Ra8
1Rn5/BqP3KB/2R1B1RP/1r2R1r1/n1k4B/1n1n4/Q1n2NrP/q1N4R b - - 0 1 illegal: No possible last move
K2N1N2/2P2b2/nB3RnB/Q1N1n3/5PR1/1q2k1BN/n1Pb2BN/3n2bn b - - 0 1 legal: proof: f4 f5 e4 b5 d4 c5 dxc5 g5 a4 a5 axb5 h5 h4 Nh6 g4 Ng8 e5 Ra6 gxf5 Rf6 exf6 g4 Bd2 Rh7 Be3 Rg7 Bc1 Rg5 hxg5 Qb6 Nd2 Qc7 Nb1 Qd8 Ke2 Kf7 Ke3 d5 Kd4 a4 b4 e6 c6 h4 c7 g3 g6+ Ke8 g7 Kf7 b6 g2 b5 h3 b7 a3 b6 h2 Nd2 a2 Nb3 Nh6 g8N Bb4 Be3 Be1 Kc5 d4 Bf2 e5 Bg3 d3 Qd2 e4 Nh3 e3 Rg1 h1N Qa5 Na6+ Kc6 e2 b8N d2 b7 d1N Nc5 Qd3 Rb1 a1N Rb6 Ng4 Nh6+ Kf8 f7 Kg7 f6+ Kg6 f8B Bd2 f7 e1N Bg7 Be6 f8N+ Kh5 Bd4 Nb3 Bg7 Nge3 Ng4 Nf5 Nh2 Bf7 Bh6 Nc1 Nfe6 Nh4 Nbd7 Na2 b8B Qe3 Kb7 Nef3 Ka8 Qb3 Ndf8 Ne5 Ba7 Nhg6 Rd6 Qc4 Bb6 Qb3 Nf3 Kg4 Nd8 Kf5 Re6 Kg4 Nh2+ Kf5 Na4 Ke4 Nc5+ Ke3 Rf6 Nd7 Bc4 Nde5 Bd5 Nd7 Rf1 g1B Bg2 Nde5 Rf2 Bc3 Rd2 Bb4 Rdd6 Bd2 Rd7 Be8 Rg7 Bf7 Rg8 Nh4 Rg5 Nhg6 Rg4
1BnqR1K1/bB1RPR2/B3r1N1/1nP1b3/Nr4BP/1k6/2Q1p1B1/4Rnb1 b - - 0 1 illegal: No proof kernel
5Rr1/Bp1q3n/2N1rR2/1N2nb1P/BK2Pnb1/NP4N1/1bQRR3/R5k1 b - - 0 1 illegal: No possible last move
2n1Bb2/bk2Bqpb/Pr5N/K3Q2R/4n1RB/6BP/1b5P/Q1rBN1B1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 e5 f4 h4 fxe5 h3 gxh3 Qd6 Qb3 Qf6 Qd1 Qd8 e4 Kd7 d4 c5 Kd2 Kc7 Kc3 f5 b4 a5 b6+ Kb7 d6 a4 d7 f4 d5 f3 d6 c4 e6 a3 e5 f2 e7 a2 e8B Ka6 e6 Rh7 e7 Nc6 b7 Nf6 b8B Qc7 d8B Kb7 d7 Ra6 Na3 Rb6 Ne2 Ka6 Be3 Ng4 Nd4 Bb7 Nf5 Rh8 Rg1 Qf4 Nh6 Na7 Nc2 Be4 Be2 f1B Ne1 Nf6 Rg4 Bh7 Bg1 Nc8 Bbc7 Qf5 Bg3 Kb7 Qd4 Qe6 Bd1 Qf7 Rb1 a1B+ Rb2 Be2 b5 Bf3 Kb4 c3 Rd2 c2 Ka5 c1B Qc3 Bg2 Rd5 Be3 Rh5 Ne4 Qa3 Bb2 Qa1 Bh1 Bh4 Rg6 Bc7 Ba7 d8B Rb6 Bcg3 Ka8 Rg6 Ncd6 Ng8 Nd2 Nh6 Bb7 Bd7 N2e4 e8Q Ba6 Ng4 Kb7 Qe5 Be7 Nh6 Re8 Rgg5 Bf8 Be7 Rc8 Rg4 Rc1 Be8 Nc8 bxa6+
NN1r3Q/pr3B2/3N1RqB/R3P1b1/4b1b1/3PPr1k/1Nrn3B/N3K2B b - - 0 1 legal: proof: c4 b5 h4 g5 g4 f5 gxf5 e5 a4 d5 cxd5 g4 axb5 Nc6 f4 Nd4 fxe5 Ne6 Nf3 Ke7 Ng1 Ng5 hxg5 Ke8 d6 Kf7 b6 h5 d7 c5 b7 h4 b8N c4 g6+ Ke7 g7 g3 f6+ Ke6 f7 Kf5 d3 Kg4 Bh6 c3 Nh3 c2 Ra5 c1R Nd2 g2 Nb3 g1R Nf2+ Kg3 Na1 Be7 f8N h3 Ne6 h2 Nc7 Qf8 d8N Qf6 Nb7 Qh4 Nd6 Nf6 g8B Nd5 Bf7 Rc2 Qb1 Qg4 Nd1 Rf8 Qc1 Rd2 Qc3 Nf6 Qd4 Kh4 Qc3 Rg3 Bg2 Rf3 Rf1 Rd8 Bh1 Ne4 Qd4 Rc2 Qc3 Rh3 Rf6 Qg6 b3 Rb2 Nd7 Kg4 b4 Bb7 b5 Rh5 b6 Bc8 b7 Rf5 b8B Rh8 Re6 Bg5 Rf6 Rc2 Nb2 Kh3 Qb3 Rg8 Qe6 Nd2 Qe8 Rf3 Qf8 Nb3 Qg7 Rd8 Qh8 Bc1 Nd5 Bg5 Bc7 Nd2 Bb6 Rb8 Bg1 Rb6 e3 Rb7 Nb8 Bg4 Nb6 Rf5 Bf3 h1B Na8 Rf4 Bh2 Rf5 Bd1 Be4 Bf3 Rf4 Bh1 Rf2 Bg3 Rf3 Bh2
3K3N/r6r/b5bp/k2R1n2/P1BPP1n1/QBBn3R/B3n3/n2N1RBR b - - 0 1 illegal: No possible last move
5N2/Pp1b1P1B/N2bRKRN/4B2q/1b6/1q1R1P2/1n1N1rRb/2Q2Nkb b - - 0 1 illegal: No possible last move, all moves rejected
3qnBB1/Rk2p3/1Nq2q1Q/bb4PK/B1b4B/3rPN2/q1RB1P2/2B1Q3 b - - 0 1 legal: proof: b4 a5 h4 g5 g4 f5 gxf5 d5 a4 b5 c4 g4 cxd5 Nc6 axb5 a4 Rh3 Na5 bxa5 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Bd7 Na3 Be6 Nb1 Bc8 d4 Kd7 e3 c5 Ke2 Kc7 d6+ Kb7 d7 h5 d5 a3 f6 h4 b6 g3 Kf3 g2 Kg4 a2 d6 c4 a6+ Kb8 f7 c3 a7+ Ka8 Nf3 c2 Qe1 h3 Nc3 h2 Bb5 Rh7 Ba4 Ba6 Nd5 Bg7 f8B Bb5 Rg1 Kb7 a8B+ Ka6 b7 h1B b8B Rh6 Bc7 Bc3 Nb6 Ba5 Bd5 Rg6 Bf7 Kb7 Kh5 Bc4 Rf1 g1Q Bb8 Qg3 Bc7 Qe5 Rg1 Qb8 d8B Qf6 d7 Bg2 Bd6 Bgf1 Bg3 Qc8 Bdc7 Qd8 Bh4 Bb5 Bd6 Bfc4 Bd2 c1Q Ba3 Qcc3 Bac1 Qc6 Rg4 Rd6 Rf4 Qd4 Rf5 Qf6 Rc5 Rd3 Bd5 Qc7 d8Q Qc8 Qd6 Qd8 Rb1 a1Q Rb3 Qa2 Ra3 Nh6 Bg8 Nf7 Qh2 Nd6 Qhh1 Bd5 Rc2 Bdc4 Qh2 Ne8 Qd6 Qe5 Qh6 Qef6 Bb3 Bb4 Ra8 Bc3 Ba4 Ba5 Ra7+
k1QN1N2/1bnP1nBR/nn2B3/6q1/2R3R1/2P4p/1N3RqP/b1NnK2R b - - 0 1 illegal: No possible last move
1R1n1Q2/3q1rPr/1qn1N1n1/NN2kn2/2B2q1P/BR3P2/3R1p1R/1K3NR1 b - - 0 1 legal: proof: c4 d5 cxd5 h5 g4 g5 gxh5 b5 a4 Bg4 axb5 f5 f3 Bh3 Kf2 g4 Ke1 Bh6 Kf2 Bg5 f4 Bg2 fxg5 f4 Ke1 f3 Kf2 Qc8 Ke3 f2 Kd3 Bf3 exf3 Qd7 Ke2 Qd8 Kd3 Kd7 Kc2 Kd6 h4 e5 d4 a5 b4 c5 b6 g3 g6 a4 b5 c4 g7 e4 h6 a3 b7 a2 h7 c3 b6 g2 Rh2 e3 Ba3+ Kd7 d6 Ke6 d5+ Kf5 d7 e2 d6 e1Q Ne2 g1N Nd2 Ke5 Nd4 Ne2 Nb5 Nc6 b8R Nh6 b7 Nf4 Bc4 Qe3 Nf1 Ra7 Rb1 Qc7 d8N Nf5 d7 Qeb6 Ne6 Ng6 d8R a1N+ Kc1 c2 Rd2 Qd7 Rb3 Re8 h8R Nd8 Rh5 Rh8 Rg5 Rh7 Kb2 c1Q+ Ka2 Kf6 Rg1 Nc2 Qe1 Ncd4 Qe2 Qc3 Kb1 N4c6 Qe3 Qe5 Qc5 Qf4 Qe7+ Ke5 Qf8 Ncd4 Ra8 Qe8 b8N Rf7 Nc6+ Kf6 Bd6 Qd7 Na5 N4c6 Ba3 Ke5 Rb8
3NKB2/BPR4p/1k5n/2q1Bqn1/4n1QP/n1B1nn2/1N2NPr1/3BR2N b - - 0 1 legal: proof: e4 a5 c4 b5 g4 c5 b4 f5 gxf5 e6 a4 Ra6 axb5 Qg5 e5 Qd8 d3 Be7 b6 Bf6 exf6 Ra8 Ra2 Ba6 Ra3 Bb5 cxb5 c4 Ra4 c3 Ra1 Ra7 Ke2 Rc7 Ke1 Rc4 dxc4 Qc7 Qd5 Qc8 Qd1 Qd8 Ke2 d5 Ke3 Kd7 Kd4 g5 Ke5 g4 h4 d4 b7 Kc7 c5 a4 b6+ Kc6 f7 g3 f8N a3 f6 d3 f7 d2 Ne2 a2 Na3 g2 Bb2 g1Q Rc1 a1N Nc4 c2 Bc3 Qg4 Nb2 Na6 b8B Qg6 b7 Qc8 Bd6 Qd3 b8B Nh6 Kf6 e5 Ke7 e4 Ne6 e3 f8B Rg8 Bde5 Rg2 b5+ Kb7 b6 Nc7 Rg1 Qf5 c6+ Ka6 b7 Kb6 Nd8 Ne6 Rh1 Ng5 Ke8 Qc7 Rg1 Qd6 c7 Qc5 Rb1 c1N c8N+ Kb5 Nd6+ Kb6 Rh1 Nc2 Ne4 Na2 Rc1 Na3 Qa4 d1N N4g3 Ng8 Qg4 Nh6 Nf4 e2 Rc2 e1N Be2 Ne3 Bd1 Nac4 Nfe2 Nef3 Re1 Na3 Nh1 Nh3 Bb4 Nc3 Rc1 Ne4 Rc2 Qd4 Rc7 Nhg5 Bc3 Qc5 Ba7+
1b2r1RK/r2N4/Qq1NB1rB/3R1R2/1k1p1N1n/1P2Pp1n/3P4/2bR1R1N b - - 0 1 legal: proof: b4 c5 bxc5 b5 a4 h5 axb5 e5 g4 e4 gxh5 e3 fxe3 Ba6 e4 Bb7 e5 Be4 Nf3 Bd5 Ng1 Bb3 cxb3 Qc7 Ra3 Qc8 Ra1 Qd8 Kf2 Ke7 Kg3 a5 Kh4 f5 Kg5 d5 Kg6 a4 h4 d4 e6 a3 c6 Kd6 e7 Kc5 e8N a2 h6 f4 e3 f3 h7 Na6 c7 Qd5 c8R+ Kb4 h5 Qc5 b6 Qc7 b7 Bc5 b8N Bd6 h6 Qd7 Bh3 Be7 Be6 Qb5 Ba3+ Ka5 Qf1 Bh4 Rd8 Ra7 Nd6 Bg3 Nd7 Nb4 Ne2 Nd3 Nbc3 Qb6 Nd5 Nf2 Ndf4 Nh3 Rd1 a1B Rf8 Bh2 Ng3 Bb2 Qd3 Bc1 Rhf1 Ne7+ Kf7 g5 Kg7 g4 Rf5+ Qb5 Nh1 Re8 h8R g3 h7 g2 Rg8 Ng6 h8R g1R Rhh5 Nh4+ Kh8 Rg6 Rd5 Bg3 Rhf5 Bh2 Nc8 Bg3 Bf8 Qc5 Qe2 Kb4 Bh6 Qb6 Qa6 Bh2 Nh5 Bd6 Nf4 Bb8 Nd6
7b/n1qkr1B1/7B/3Kp2B/2PQ1Qp1/BbNP1nR1/bPnN2B1/1R1B4 b - - 0 1 legal: proof: f4 b5 a4 d5 axb5 a5 g4 h5 gxh5 e5 e4 c6 bxc6 Nf6 exd5 Ng8 f5 Ra7 Qe2 Re7 Qd1 Re6 fxe6 Ba6 Ne2 Bb7 Ng1 Bc8 Ke2 g5 Kf3 f5 h4 f4 Ke4 f3 c4 f2 e7 a4 c7 a3 h6 a2 h5 Na6 h7 Bh3 c8B Nc7 d6 Bg7 h6 Bg4 d7+ Kf7 e8B+ Ke7 Nc3 Nd5 Bh5 Ne3 Rb1 a1N Nf3 Nac2 Rh3 Nf5 Kd5 Qc7 Bg2 f1B Rg3 Nfd4 d3 Be2 Qf1 Bd1 Nd2 Nf3 Qg1 Kd8 Qd4 Bf6 Bb7 Ke7 d8B+ Kd7 Be7 Bg7 Bd6 Ne7+ Ke4 Rf8 h8B Re8 h7 Nc6 Kd5 Na7 Ba3 Bf6 Bg7 Re7 Bg6 Bh5 h8Q Bg4 Qf8 Bh5 Bh6 Bh8 Qff4 g4 Bh7 Be8 Bg6 Nce1 Bh5 Bb3 Bg7 Ba2 Ba8 Nc2 Bc6+ Kc8 Ba4 Kd8 Bb3 Ba4 Bd6 Kd7 Ba3 Nce1 Bd1 Bc2 Nf1 Bcb3 Be3 Nc2 Nd2 Nc8 Qf8 Na7 Beh6 Qb8 Qf6 Qc7 Qff4
N3N1N1/b2N4/1npn3K/1rPQ2RR/4N1pb/PqPN4/1kbQ1q2/3B2B1 b - - 0 1 legal: proof: g4 h5 gxh5 a5 e4 f5 exf5 a4 Qe2 a3 bxa3 Nc6 Qd1 Nb8 c3 Ra4 d3 Rc4 dxc4 b5 Qa4 b4 Qd1 b3 axb3 Rh7 Qf3 Rh6 Qd1 Rh8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 h4 d4 h6 g6 h5 c6 h7 d3 b4 e6 c5 d2 b5 Bb7 b6 Qc8 h6 Qd7 Nh3 Ba6 b7 Bg7 Be2 Kf7 Kg5 e5 f4 e4 f6 Ke6 f7 Kd5 f8Q e3 f5 Qc7 f6 Bb5 f7 Ke5 Qd6+ Ke4 f8N Bd3 Nd7 Qa5 Nb6 Qb5 Na8 Qb4 Nf4 Be5 Rh5 Nd7 b8N Bc2 Nd3 Nb6 Nd7 Ne7 Ra2 Rb8 h8N Qd4 h7 Nf5 Nf7 Bg3 h8N Bh2 Qe1 d1Q Nh6 Bg3 Bg4 e2 Qd2 e1B Ng8 Qf2 Nf7 Be5 Qe6 Nd6 Kh6 g5 Qf5+ Kd5 Qf3+ Kc4 Qd5+ Kb5 Bf3 g4 Rg5 Ka4 Ra1 Ndc4 Nd6 Kb3 Ne8 Rb7 Ra2 Bb8 Be2 Qf7 Ra1 Bh4 Ra2 Qe1 Bd1 Qg1 Qh2 Qe1 Be3 Ba7 Bg1 Qg3 Qd2 Qgf2 Qe4 Nd6 Qd5+ Nbc4 Qf4 Rb5 Nd2+ Ka4 Ne4 Kb3 Qd4 Nb6 Qd2 Qc4 Ra1 Qa4 Qd5+ Qc4 Rb1+ Ka2 Rc1 Qb3 Bf3 Ndc8 Bh2 Nd6 Rh1 Bg3 Bg1 Ka1 Rhh5 Bh4 Bd1 Ka2 Nb4+ Kb2 Nd3+
r4Qn1/3RPB2/2pqbrk1/1P5R/PNb3p1/Q1K1B2R/4rR1r/2R3RN b - - 0 1 illegal: No possible last move, all moves rejected
4K3/Pr3rB1/2B3PB/p1Q1RBNq/2bQ4/2b2Rpq/4kBP1/1N2Bq1r b - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 d5 cxd5 g4 a4 Qd6 h4 Qf6 a5 Qg5 hxg5 Be6 Rh2 Bf5 Rh1 Bc8 b4 b6 a6 Nd7 b5 Nc5 Na3 Nf6 Nb1 Nb7 axb7 a5 Rh2 Nd7 Rh6 Nc5 Rh1 Na6 bxa6 Bd6 Bb2 Bb4 Bc1 Bf8 Kf2 Ke7 Ke3 c5 Kf4 h5 b8B f5 e4 c4 d4 c3 d6+ Ke6 g6 h4 Kg5 b5 d5+ Kd7 Kf6 b4 Kf7 h3 e6+ Kd8 e5 c2 e7+ Kd7 e8B+ Kd8 d7 h2 e6 f4 a7 f3 Nh3 b3 Ng5 b2 Be5 f2 Bg7 Kc7 d8B+ Kd6 e7 Kc5 d6 Ba6 Bd3 f1Q+ Bf5 Kc4 d7 g3 Bb6 Rh5 Bd2 c1Q d8B Rh4 Rg1 h1Q Ra3 Qh3 Be1 Rh6 Qd6 Qd1 Bbf2 Qdh5 Rf3 Rb8 Bed7 Rb7 e8Q Rh7 Qee5 Be7 Bdb6 Bf6 Bbe3 Bb5 Qee7 Bc3 Ke8 Ba6 Bc6 Bb5 Bh6 Rf7 Bd4 Ba6 Bdg7 Bb5 Re3 Ba6 Qde5 Bb5 Re4+ Kd3 Q7c5 Ba6 Qf6 Bc4 Rf4+ Ke2 Qfd4 Bd3 Rf3 Bc4 Nd2 b1R Rh1 Q3g4 Rh4 Qh3 Re4+ Kd1 Re5 Rc1 Be3 Ke2 Nb1 Qf2 B1d2 Rh1 Be1 Qf1 B3f2#
NKb2n2/1B2Qbb1/p2Rb2p/N5B1/R2P3n/1RP2RB1/7P/Bkqn3R b - - 0 1 legal: proof: f4 b5 d4 g5 fxg5 c5 c3 d5 e3 b4 b3 a6 a3 h6 axb4 Ra7 Kd2 Rb7 Ke1 Rb6 dxc5 d4 cxb6 d3 Qf3 Rh7 Qg4 Rg7 Qd1 Rg6 Bb2 Rd6 Bc1 Rd4 exd4 Bf5 Ba3 Bg4 Bc1 Bc8 Kd2 Kd7 Ke3 Kd6 Ke4 e5 g4 d2 b5 f6 b7 Qe8 g6 Qf7 b6 Qc7 b4 Qd8 b5 Nd7 b8R Qe7 g5 Bg7 b7 Qe8 b6 Qf8 Ra4 Kc6 Nf3 Qf7 Bg2 Kb5 Qe2+ Qc4 Bb2 d1B Ba1 Bb3 Nbd2 Bf8 g7 Ne7 g8R Bg7 g6 Nf5 Rd8 Ba2 Nb3 Ne3 Nfd2 Nd1 Na5 Nf8 Rd6 Be6 Qe1 Qf1 Ndc4 Bc8 Kd5 f5 Qh4 f4 Qe7 e4 Bf3 e3 Be4 Bf6 g7 e2 g8R e1N Rg3 Ng2 Rf3 Qg1 Re6 Nh4 Kd6 Qe1 Kc7 Bg7 Rd6 Qd2 Ra8 Be6 b8B Qc1 b7 Bc8 Nb6 Bae6 Ra7 Bf7 Na8 Bfe6 Rg3 f3 Bd5 f2 Rf3 f1B Be4 Bg8 Bd5 Bce6 Be4 Bef7 Kc8 Be2 Bc7 Bec4 b8B Bce6+ Kb7 Bh7 Bd8 Bhf5 Bbc7 Bc8+ Kb8 B5e6 Bb7 Qd2 Ra3 Qc1 Rb3+ Ka4 Rb4+ Ka3 Rc4 Ka2 Ra4+ Qa3 Bd5+ Kb1 Qg5 Qc1 Rb7+ Kc2 Rc6 Qa3 Bg3 Nfg6 Rd6 Nf8 Rb3 Qb2 Bb7 Qc1 Bf6 Bd5 Qe5 Bc4 Qe7 B4e6 Bb2 Kb1 Bg5 Qc2 Ba1+ Qb2 Rba3 Qc1 Rb3+
B1N1bB2/2Pp2Bb/1b1rPrpk/qQ3B2/2B1B1K1/2qb1N2/3RP1Q1/2R5 b - - 0 1 illegal: No possible last move, all moves rejected
BB1nN3/2p2NK1/R1QN2P1/p4Q2/2N3r1/R1pbrNq1/nPPb4/4N2k b - - 0 1 illegal: Other
R3NQ2/1Rnb1r1p/R1q2N2/1B2P2P/K1B3Pk/1r2R3/1B2pp2/2q1B1Br b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 Qe7 b4 Qf6 bxc5 Qd8 Nd2 d5 Nb1 Nc6 Nh3 Bg7 Ng1 e4 e3 Be5 dxe5 d4 Ra6 d3 Ra1 Nd4 exd4 Bg4 Ba3 Bd7 Bc1 Bc8 Kd2 Ke7 Kc3 a5 Kb3 f5 g4 e3 c4 d2 h4 f4 b6 f3 b7 Rb8 g6 Qd5 h5 Qd6 c6 Qd7 c7 Qf5 d5 Ra8 b8B Qe4 c5 Ba6 c8R Qd3+ Ka4 Nh6 c6 Qe2 d6+ Ke6 c7 Qd3 g7 Nf7 g8B Ra7 d7 Rb7 d8B Qd7+ Bb5 e2 Ba7 Qc6 Bh4 Kd5 Qf1 Ke4 Be1 Kf4 Ra8 Kg5 c8R Nd6 Rcb8 Rf7 Nc3 Bc8 Nd5 Bd7 Nf6 Ne8 Bb2 d1R Rb7 Nc7 Rh3 Rc1 Rg3 Kh4 Nh3 Rd1 Bg1 f2 Re3 Rb1 Nf4 Rd1 Qg2 Rb1 Ka3 a4 Qf3 Rc1 Kb4 a3 N4d5 a2 Ne8 Rb1 Ndf6 Rd1 Rc1 a1Q Rc5 Qc1 Ka4 Rf8 Bc4 Rf7 Nd6 Rd8 Nde8 Rd3 Qf5 Rb3 Qf3 Bf5 Qf4 Rd1 Qh6 Bd7 Qf8 Qf3 Rc6 Qg2 Rca6 Qc6 Ba5 Rf1 Bh2 Rg1 Be1 Rh1 Bg1
1R6/r1P1r2P/1K6/4R1Np/N3RnpR/bQ5p/B2rb1PB/1NrRN1k1 b - - 0 1 illegal: Other
2k3K1/2N1P2P/2NpN2b/1B1q3p/n4BN1/1Br1Rp1R/1pB1P2B/r1b2Q2 b - - 0 1 illegal: No proof kernel
2BNn3/nN4RN/2b1kP1q/BRr1N3/3n1P1b/r3Nq2/b2PQR1K/q1R5 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 b4 Kd7 g4 c5 f4 h5 Kf2 e5 Kg3 a5 g6 a4 b6 a3 d6 h4+ Kh2 c4 b7 h3 g5 a2 g7 c3 b5 c2 g6 e4 b6 e3 Nc3 e2 Nd5 e1N Ba3 c1Q Nf3 Qcc7 Rc1 a1Q Ba6 Qg5 Bb4 Qb1 Qe2 Be7 Ne3 Qa2 Rf1 Nc6 b8R Qa1 b7 Nc2 Rf2 Qh6 Ba5 Nf6 g8N Na7 g7 Nd4 Ne5+ Ke8 Nd7 Kf7 Nc5 Be6 d7 Ne8 Nf6 Qc6 g8R Qf3 Nh7 Bh4 f6 Ba2 Rgg1 Nd6 Rg3 Rc8 Rg5 Rc6 Rbg8 Rc7 b8N Ne8 Nb7 Ke6 Rb5 Rc5 Rg7 Bb1 Kg1 Ba2 Nc6 h2+ Kf1 h1B Kg1 Qfh5 Ne5 Bc6 Kh2 Qf3 Nd6 Rb8 Bc8 Rb6 Nb7 Ra6 Bd8 Ra4 Ba5 Ra3 d8N#
R1NN3K/1B1bnP2/1nbnP3/4BB1R/2rRq3/1rBr2P1/1bk2Q2/Rq3R2 b - - 0 1 illegal: No proof kernel
N4n2/1K1P1rPn/3N2b1/1PqB3n/bbNrNBr1/1qR1BB1R/4k3/6BQ b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 c5 Ke4 e5 g4 h5 d4 a5 b4 a4 f4 c4 f6 Kg6 f5+ Kh7 f7 c3 f6 Kg6 b6 h4 d6 a3 Kd5 c2 b7 h3 d7 e4 b5 a2 Nf3 h2 Be3 c1Q Nbd2 Rh5 Ne5+ Kh7 Bg2 Rh4 Nec4 Bb4 f8B Kg6 f7 Ra7 Bc5 Nf6+ Kd6 Qg8 Kc7 Qa3 d8N Be6 d5 Nbd7 d6 Nh5 Rc1 a1R Rc3 Nf8 d7 Ra4 Bg1 e3 b8B e2 Nb7 e1N Bce3 Nf3 Nbd6 Bf5 Qb1 Bc2 N2e4 Bd1 Kb7 Bb3 Qc2 Rf1 Qc1 Bd1 Bc7 Qb3 Bb8 Qh8 Qb1 Qd4 Bc7 Qc5 Bb8 Kg7 g6 Ng5 Qc1 Kh6 g7 Kg6 g8B Ngh7 g5 Rg4 Qa1 Ng7 Bc7 Kh5 g6 Kh4 Qc1 Nh5 g7 Rf2 Ng3 Rd4 Nge4 Kg4 Qb1 Ne6 f8N Rf7 Bf1 Kf3 Bg2+ Ke2 Qc1 Nef4 Ne6 Ng6 Bb8 Ngf8 Nc7 Rf5 Bd5 Rf7 Na8 Bc2 Bf4 Bd1 Bge3 Bc2 Ba7 Bd1 Rf1 h1B Rf3 Bc2 Bh3 Bg2 Qh1 Bd1 Rg3 Bf3 Bg1 Bg4 Bg2 Bf5 Rh3 Bg6 Bb8 Ra2 Bfe3 Rad2 Ng5 Rg4 Nge4 Rd3 Ne8 Rd4 Bbf4 Qb2 N8d6 Ba4 Ne5 Qa2 Nec4 Qb3 Bf3+
1r2k3/2Q1B1rN/1bP2P2/P1bBNb1N/1n3q1R/Kn1N1Q2/1rR4N/bbN5 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 d5 Kc3 b5 Kb2 g5 a4 e5 f4 g4 h4 e4 c4 b4 c6 g3 f6 e3 c7 g2 c5 e2 h6 e1B f5 b3 f7+ Ke7 c6 d4 h5 d3 h7 d2 a6 Bb7 c8Q Bh6 f8N Bf4 a5 Bg5 a7 Bf4 h6 Qd7 f6+ Kf7 Nf3 g1B Nc3 Ba6 Qc7 Ke8 Bc4 Qe6 Ra2 Qe5 Rh4 Bc8 Ka3 b2 Bd5 b1R Ne2 Bfe3 Rc2 Bb6 Nh2 Qf4 Bb2 Be6 Nc1 Na6 Qf3 Rb8 a8N d1B Bd4 Rb7 Bc5 Nb4 Be7 Bbc5 Nb6 Bf5 Na4 Bc3 Nb2 Bge3 Nbd3 Ba1 Ne6 Rb2 Ng5 Be2 Ne4 Bb6 Ng3 Bec5 Nh5 Be3 Bd6 Ne7 Bc5 Rg8 h8N Rg7 h7 Rb8 Ng6 Bd1 Bd6 Bec5 h8N Be2 Nge5 Bf1 Ne1 B1d3 Nhf7 Bde4 Ng5 Bd3 Rf2 Bb1 Re2 Bd7 Rf2 Nf5 Ne1d3 Nd4 Be7 Nb3 Nh7 Bf5 Rc2
K2bb3/1P2Pq2/Rb2Rn1N/n3Nr2/r1B2r2/R1R1N1BN/Q2n2P1/2Rnk3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kf3 c5 Ke4 a5 d4 h5 b4 f6 e6 Kd6 b6 h4 e7 a4 e8R a3 b5 a2 b7 c4 g6 h3 g7 c3 b6 c2 Na3 h2 Qd2 Nd7 b8N Qc7 Nc6 Be7 Ne5 Qc4 Nh3 Ra4 b7 Nh6 g8N Nf5 Nh6 Rf8 e3 Qb3 Bc4 Bd8 Re1 h1R Re6+ Kc7 d6+ Kb6 Kd5 Rf1 e4 Rf4 Qe2 Ka5 Kc6 Kb4 d5 Kc3 Be3 c1B Bf2 Rf7 Bg3 Ne3 Nc2 Nd1 Ne3 f5 Rh1 Nf6 d7 Ba3 d6 Bc5 Rf1 Rf8 Rf3 Bcb6 Rc1+ Qc2 Qf2 a1N Qe2 Nb3 Qf2 Bdc7 d8R Na5+ Kb5 Rf7 Ka6 Bd7 Rc8 Be8 d7 Rf8 d8R Rf7 Rd2 Bd8 Rdd6 Rf8 Ra1 Qb3 Ra3 Rf7 Qa2 Rf8 Rdc6 Rf7 Nc2+ Kd2 Rc3 Rf8 Nf2 Rf7 Ne3+ Ke1 Ra8 Rf3 Rac8 f4 Nh3+ Rf2 Ra8 f3 Rc5 Nd7 Rcc6 Rf4 Ra7 Nf6 Ra8 Bbc7 Ka7 Bb6+ Kb8 Rf5 Ra6 Rf4 Ka8 Rf5 Bh2 Rf1 Bg3+ f2 Bb5 Qd5 Rc1 Qd7 R6c3 Qf7 Bc4 Rh1 Ng1 Rh4 Nh3 Rhf4 Nd7 Re5 Re7 Rd5 e5 Rc5 e6 Rg5 Ne5 Rgf5 Bh2 f1N Bg3+ Rf2 Rd7 Nd2 e7 Nc6 Rd6 Na5 Bf4 Rf1 Re6 Rf2 Bh2 R2f4 Bg3+
1nR1R2n/2B1KQqN/4B2P/2N2R2/n1q3R1/1P1r2P1/1n1rn2N/2bk1RNb b - - 0 1 illegal: No proof kernel
3R4/b3NNKP/b2P3N/2q4B/2BPbk1B/1bn1r2B/n3Rq1r/B3NQ1b b - - 0 1 illegal: No proof kernel
1n1qN3/3kqn1P/RP6/1Q1Nb2B/1NR2Rr1/8/KRn1PBbr/1n1n1RN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 d4 c5 Kd2 f5 Kc3 g5 Kb3 a5 h4 g4 h6 g3 b6 c4+ Ka2 c3 b4 a4 b5 f4 e6 a3 h5 f3 h7 c2 d6 f2 e7 g2 d5 Bg4 h6 Ra5 d7+ Kf7 e8N Ke7 b7 Nf6 d6+ Ke6 Be3 c1Q Qd3 Qcc7 Nc3 Bh3 Nd5 Bg7 b6 Rg8 h8R Ng4 h7 Be5 Qb5 Nh6 Bc5 Rg5 Rf8 Rg4 Rf4 Nf7 Rc1 Qe7 d8R Qc8 Rd7 Qcd8 Rcc4 Ra4 Rc7 Rb4 Rc6 Kd7 Rc2 Rb3 Rb2 Rbg3 Be3 Rh4 Bd4 Rgg4 Rc4+ Nc6 Kb3 a2 b8R a1N+ Ka2 Nc2 Ra8 Rh6 Ra6 Rh5 Nf3 g1N Bg2 f1N Bc5 Nd2 Bf2 Ke6 d7 Nb1 Ne1 Rh6 Be4 Rh5 Nf3 Bg2 Bg6 Rh2 Bh5 Nh3 Rf1 Nb8 Ng1 Qh4 Be3 Nf2 Bd4 Nd1 Bc5 Nc6 Bf2 Qde7 d8N+ Kd7 Qb4 Nb8 Nc6 Qd8 Qb5 Qhe7 Ncb4+
2KQ1rrn/1PP2Nr1/4P1Nb/1r2BR2/B1R2R2/q1B5/RB3rk1/1b2nBq1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 e4+ Kh4 c4 g5 b4 a5 c6 f5 c7 d6 c5 a4 c6 a3 b6 g4 b7 f4 e6 f3 h6 g3 b5 f2 e5 g2 h7 a2 b6 Bg7 e7 Bh3 e8B Bf5 c8R Qg5 e6 Bf8 Nh3 g1Q Nd2 Qg6 Bb2 Q6g3 Ng5 Na6 b8B Nc5 b7 Qa3 Nc4 Nh6 Nf7 Bb1 Nce5 Rg8 h8B Nd3 h3 Kg3 h4 Rg7 h5 Ne1 Ng6 Rg8 Rh4 Ra5+ Bb5 f1R Rf4 Kg2 Bhc3 Rf2 Qd4 Rg7 Qf6 Ra8 Qd8 Rg8 Ba7 Rb8 Bad4 Bg7 c7 Bf8 Kc6 d5 Bf6 d4 Kd7 d3 Bfe5 d2 Bd3 d1R Rf5 Ng4 h6 Rg7 h7 Nh6 h8R Rc1 Bcd4 Rc5 Bdc3 Ra8 Rb8 Rb5 Kc8 Rg8 Ng5 Nf7 Rh4 Bg7 Rc4 Nh8 Nf7 Bh6 Bd7 Rd5 Ba4 Rd7 Ng5 Rdg7 Nf7 Ra5 Be2 Rb5 Ra8 Bc2 Rd1 a1R Rdd4 Rd1 Re4 Bb1 Ref4 Rd7 Ra7 Re7 Ra6 Ree8 Bf1+ Kg3 Rd6 Ref8 Rd2 Kh2 Bc1 Kh1 Ra2 Kh2 B1b2 Kh1 Be2 Kg2 Bf1+
1Bqk4/R3N3/n5K1/2q1PPnr/2Pb1Nb1/4Q1nQ/b2NnNB1/N1rR2N1 b - - 0 1 illegal: No proof kernel
1b1r1B1r/n1k1b3/2b5/PB1q2Q1/QNnB1BRq/r2B2Pb/4PB1K/N3R3 b - - 0 1 illegal: No proof kernel
R1Kn1RR1/3nq3/Nr1P2B1/1r3Pr1/k1RB3b/2P1qQ2/1bQrN1RR/5b2 b - - 0 1 illegal: No possible last move
R4N1k/3Qq1rN/1P1r1BNK/BP6/b4n1N/2n2R2/1Prb1q1n/3NrB1B b - - 0 1 illegal: No proof kernel
qn2bR2/Q1B1P3/k3nrb1/3PqN1N/4RB1B/1r4RR/BqP1R3/q1b4K b - - 0 1 illegal: No proof kernel
1N2R1B1/2BbPNk1/2qPrN1n/NQ1N4/qR1b1R1P/2r2n2/2R2b2/3r1b1K b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 g5 Kg2 f5 h4 Kf7 b4 a5 e4 c5 d4 a4 d6 f4 d5 c4 h6 a3 e6+ Kg6 e7 c3 e8N c2 d7 a2 h7 g4 b6 g3 b7 Nh6 e5 Ra6 e6 Ra8 e7 Qa5 d8R Qa3 b5 Ng8 b6 Bf5 Nh3 Ra4 Qe2 Ra8 Nd2 Bg7 Rh2 f3+ Kh1 f2 Nc4 Qa4 Na5 Bd4 Nf6 Bd7 Re8 Ra6 Qb5 Nc6 b8N Nh6 b7 Ne5 Nf4+ Kg7 Bc4 f1B d6 Rc6 Bg8 Rc3 Be3 c1Q N4d5 Nf3 Rf2 Qcc2 Rc1 a1R Bd2 Qe4 Rc2 Rd1 Be3 Be5 Bb6 Bd4 Rfd2 Bf2 Bc7 Qec4 Rd4 Qc6 Rf4 Bd4 Be6 Rf8 h8N Rf7 Ne4 Rf6 Bg8 Re6 Nef6 Nd2 Nf7 g2+ Kh2 g1B+ Kh1 Bgf2 Na6 Rc1 b8R Nf3 Rb6 Rd1 Nb8 Qa8 Qc4 Qb7 Rb4 Qbc6 Qb5
Rnq1R3/1RNPB2B/2B1rN2/n4r2/1bRPn3/2P2kq1/BKQ2B2/r1r2b2 b - - 0 1 illegal: No proof kernel
1b1Nbn2/1RPk4/2rqBB1K/1b2BPB1/n4qR1/rQ3r2/b1P3N1/R3R1B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 e5 Kf3 d5 Kg4 a5 Kh5 h6 f4 d4 b4 d3 g4 e4 b6 e3 b7 d2 g6 a4 g5 e2 f6 e1R b5 a3 c6 a2 f7+ Ke7 b6 Bd7 f5 Re3 g7 Ra5 g6 Re4 Bc4 Ra6 Qf3 d1B Be6 Ra3 Ne2 Rc4 Nd4 Be2 Nc3 Na6 b8B Be8 b7 Nc5 Ba7 Qd6 b8B Na4 Re1 Rh7 Bg5+ Nf6+ Kh4 h5 g8R Rh6 Nd1 Rcc3 g7 Bb5 Ne3 Rd3 Qd5 Rdb3 Ng2 Rf3 Qb3 Kd8 Bd2 Nd7 Kg5 h4 Rh8 h3 g8R h2 Rh7 Bg7 f8B Be5 Bg7 h1B Bf6+ Kc8 Re7 Kd8 Bf4 Nf8 Be3 Rg6+ Kh5 Bg3 Beg5 Qf4 Bbe5 Bh2 Rac1 a1Q Rgg7 Qc3 Ra1 Qc5 Rb7+ Qe7 Bd5 Kc8 Ne6 Qd6 Bg1 Bg3 Nd8 Bh2 Nh4 Bg2 Bg8 Bgf1 Ng2 Bfc4 Qd3 Ba2 Qb3 Bg3 Bd5 Bf2 c7 Ba7 Rd7 Bb8 Be6 Qc6 Rd4+ Qd7 Bd5 Qd6 Rde4 Kd7 Rd4 Rg7+ Kh6 Re7 Rde4 Re6 Rb4 Qe7 Rbe4 Rc6 Bg8 Qd6 Bc4 Qe3 Rg4 Qf4 Be6+
R4qqb/BPq1bR2/1RB1Nn2/KQ2rk1n/R2BB3/r4b1P/qN2R1P1/8 b - - 0 1 illegal: No proof kernel
1B1k1Br1/1PNq4/PBqBQ1r1/4b3/1qb1b2q/3Q1nR1/4RP2/nNB2K1B b - - 0 1 illegal: No proof kernel
Bbr5/N1b2P2/Q1K2Nb1/B1N1r1R1/n1nN1P2/Nq2BRPB/k2r4/2rb4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 Ke4 c5 d4 h5 b4 a5 f4 h4 d6 a4 Kd5 e4 b6 e3 g3 e2 f6 e1R b7 a3 d7 a2 b5 c4 b6 c3 Qe2 h3 Nf3 c2 Qa6 h2 Be3 c1R Bh3 Nh6 Rf1 h1B Na3 Ng4 Rf2 Qe7 d8B Nd7 b8N Qb4 b7 Bd6 Ba5 Bc7 Nc6 Nc5 b8N Na4 Nd7 Ne5 Na7 Nc4 Kc6 Rd8 d5 Qb3 Nd4 Be4 Rf3 Bg6 d6 Re2 Rb1 a1B Rb2 Rd2 Ra2 Re8 Rc2 Ncb2 Rc5 Nc4 Rb5 Re5 Rd5 Bc2 Rc5 Bd1 g6+ Ke8 g7 Kf7 Nf8 Bc3 Nh7 Bf5 d7 Bg6 Rb5 Rc8 d8N+ Ke8 f7+ Ke7 g8B Bb4 N8e6 Bbd6 Nf6 Bb8+ Kb7 Bdc7 Bh7 Bd6 Nc5 Bdc7 Ndc6+ Kd6 Ng4 Kd5 Nd4 Bb1 Bd3 Bbc2 Bdf1 Be4 Bfg2 Bg6 Nd7+ Ke4 Kc6 Kd3 Rd5 Rdc2 Ngf6 Rd2 Bb6 Kc3 Ba5+ Kb2 Nc5 Re7 Rg5 Ka2 Bd7 Re5 Bgh3 Rce8 Bc8 Rh8 Bb7 Rc8 Ba8
1bnQb3/R1Pn1r1N/7k/5B1N/3qRPBK/r1BNr3/B1rb3P/B5Nb b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 a4 Kf7 f4 d5 Kf2 b5 Kg3 g5 c4 Kg7 a6 e5 f6+ Kh7 a5 d4 f7 d3 a7 d2 a6 b4 c6 e4 c5 g4 h6 e3 c7 e2 c6 e1R Be2 b3 Nc3 b2 Na4 b1R Bb2 Bd7 c8B Be6 c7 Bd7 Nc5 Kg6 h7 Kh6 Nd3 Be8 Bc3 Qd4 Bf5 Ne7 Kh4 g3 Beg4 g2 Ra2 Rg8 h8B Re3 Ra1 Bg7 f8N Nc8 Nh7 Nd7 Ra4 Ra1 Rb4 Rb8 a8N Rf8 a7 Ra3 Nb6 Rf7 a8B Bf8 Ra4 Bb4 Nd5 Ba5 Be5 Rb2 Ndf6 Rc2 Bd5 Bb4 Ba2 Ba5 Qf1 d1B Nh5 Bf3 Qd1 Bc6 Ba1 Bd2 Ra7 Bd5 Nh3 Ba8 Re1 g1B Re2 Bh1 Bf6 Rf3 Re4 Re3 Be5 Qc5 Beb2 Qd4 Bc3 Qg7 N7f6 Re2 Bf3 Be1+ Ndf2 Ne5 Qd8 Nd7 Rb7 Bd2 Nd3 Ba7 Nh7 Re3 B3g4 Qd4 Ng1 Bb8 Ra7
B2r1Qrk/2bQnP1p/5b1K/RnN1QQ2/2P1P3/Q5r1/b2Bq1R1/3NQ1n1 b - - 0 1 illegal: No proof kernel
1Nk2BnR/N3n3/KPqb4/PBB1q1Qr/br1RR2p/P7/2R1B3/1Rb1n3 b - - 0 1 illegal: No possible last move
3b2B1/NB1rk2r/PPRR3p/nN2q1B1/BK1n1bR1/2R3qR/4bPq1/7Q b - - 0 1 illegal: No proof kernel
2r1B1k1/2r2PNb/2PBBqbK/1NQ3BB/1R2B1Q1/P3n2p/1b3q1q/1R4n1 b - - 0 1 illegal: No possible last move
7B/4rp2/b1NnBb1R/1nP3NP/3q1R1B/qrk1Br2/QP3RB1/1bK1R3 b - - 0 1 illegal: Other
2n2K2/3rP1P1/RNB3r1/B1RR1Pn1/2b1k2N/n2qq1R1/2BQpR2/2bB3r b - - 0 1 illegal: No proof kernel
1BbK4/1BP1R3/N1R2rP1/1q6/Q1q2BPQ/5nNB/Br2Bp1b/nk3n1q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kf3 Ke6 Ke4 h5 b4 a5 g4 d6 c4 a4 b6 h4 b5 a3 g6 h3 b7 h2 c6 a2 b6 f6 c7 Rh5 c5 Rg5 c6 Ra6 Bh3 Bg7 Na3 Bf8 Bf4 Rf5 Nb5 Qd7 Rc1 a1N Qa4 Ke7 Kd5 Nh6 e4 Rg5 Re1 f5 e6 Kf6 e7 Qe8 Ne2 Nd7 b8Q Ne5 b7 Nf3 Rhg1 h1Q Ng3 Qd7 e8B Bg7 Kc4 d5+ Kc5 d4 Bf7 d3 Bb3 d2 Qa7 d1Q b8B Qe2 e5+ Ke7 e6 Be5 Qb6 Kf6 e7 Qf1 e8B Qe6 Bd2 f4 Re3 Qb1 Rc1 Nf5 Ree1 Ne3 Bf7 Qef5 Bfc4 Qa2 Be2 Nf1 Kd5 Qfb1 Qf2 Rf5 Rc5 Rb6 Rc4 Kg5 Rc3 Rf6 Rc4 Bf5 c8B Qac2 Bb7 Bc8 Nc7 Bd6 Ba2 Rb2 Na6 Qb3 c7 Qb4 Rc5 Qc4+ Kc6+ Qf5 Bb3 Qfd5+ Kb6 Qf5 Rc6 Qfb5+ Ka7 Bc5+ Ka8 Bd7 Nh5 Ng1 Bf3 Bd6 Bc8 Bf5 Bfd1 Bd7 Re3 f3 Be2 Bh2 Qg3 f2 Re7+ Rf4 Be3 Nf3 Qh4+ Kh6 Bb6 Rf6 Kb7 Bf5 Bd7 Be6 Kc8 Bf5 Kd8 Be6 Qg3 Kg5 Bc8 Bf5 Bb7 Bd7 Ng7 Bc8 Qh4+ Kf4 Ba5 Rf5 Bc3 Rf6 Be5+ Ke3 Nf5+ Kd2 Ng3 Kc1 Bf4+ Kb1 Ba2+
Q1Q2q1B/1P1NR2n/1N1BBp2/3r1q1b/4P2b/1Pq2r1B/K5B1/R1kB2nn b - - 0 1 illegal: No possible last move
1b6/1p3NBP/1P1nN3/B1Q2R1K/q1BbR2n/2BR1Pr1/r3k1rB/2R3qq b - - 0 1 illegal: No proof kernel
1B3qn1/Pr3Rb1/1QPq2B1/pb1N1b2/BrnP1B2/2KBQ3/5Nr1/2kB1R2 b - - 0 1 illegal: No possible last move, all moves rejected
4K3/Pr6/rqP4P/Nnk1bq2/B2NpN2/2B2N1R/nRN2Q2/3QNbbn b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Ke2 g5 Kd3 d5 Kd4 Kd7 Ke5 Kc6 c4 b5 f4 b4 a4 d4 h4 b3 a6 d3 a7 g4 h6 e6 h7 b2 f6 g3 f7 d2 h5 g2 a5 Bb7 a6 Qd7 f5 Bh6 f8Q Qf7 f6 Ne7 Rh3 Be3 h6 Qg7 Na3 b1Q Nf3 g1B Ra2 Qb4 Bb2 Bg5 Bc3 Bc8 Nc2 Qb7 Rb2 Nf5 Nfe1 Qg8 f7 B5e3 Kf6 Kc7 c6 e5 c5 e4 Bb5 Qg3 Ba4 Nd4 Ke7 Qf2 Ke8 Rg8 h8N Qb6 Ng6 Qf5 Nh4 Nb5 Nhf3 Be6 Ne5 Bc4 N5f3 Kc8 c7 Bd4 Qe2 Nc6 Qd1 Rb8 a8N Be5 a7 Kb7+ c8N Nb4 Nc7 Kc6 Ne6 Rg6 Nf4 Rb7 Nd6 Bf1 Nc4 Na2 Na5+ Kc7 Qe2 d1N Qd3 Nf2 Qd1 Nh1 c6 Rg2 Qc5 Rd2 Qe3 Kd6 f8N Rd5 N8e6 Rd2 Ned4 Kc5 Qf2 Rd3 Bd2 Ra3 Bb3 Ra4 Bc3 Ra3 Nc4 Ra5 Ba4 Ra6 Na5
b2bn3/4qRR1/Rn2B1P1/P3P2Q/2r1Rrb1/2N1bkp1/2R4R/Bb2QN1K b - - 0 1 illegal: No proof kernel
2n2B1r/BN1PPnrN/rbB1Pr2/1KR1BN1Q/rR3qb1/1B6/4p3/3N3k b - - 0 1 illegal: No possible last move
N1br4/Pn2Nnrk/P3BbrN/1K1RrpRR/N3P2R/4r3/2q2B2/N4Q2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 e4 f5 Ke2 Kf7 Kd3 c5 Kc4 g5 d4 Kg7 h4 g4 a4 g3 d6 b6 e6 g2 a6 Rh6 d5 Qe8 e7 Kh8 d7 Qd8 e8N Bd6 a5 Be7 d6 Bf8 a7 Na6 Na3 Qf6 d8N Nc7 a6 Kh7 d7 Qd6 Nc6 Qg6 d8R Kh8 Ne2 g1R Rd5 Bg7 Be3 Bf6 Bf2 Kh7 Nc3 Ne6 Ne7 Nd8 Na4 Qg2 Kb5 c4 Nc2 c3 Nc7 Nb7 Bc4 Rg6 Qf1 Nh6 Bb3 Rb8 Na8 Nf7 h6 Rg7 h5 Qh2 Ne3 R1g6 Nc2 Qg2 Rh4 Qh2 Nb4 c2 Rb1 c1R Nc2 Qg2 Na1 Rc3 Bc4 Rcg3 Rb3 Rh3 Rg3 Qh2 Rg5 Re3 Re5 Qg2 Be6 Qh2 Rd5 Qg2 Kc6 b5 Kb6 b4 Kb5 Kh8 h7 b3 Kb4 b2 Kc4 Rg8 Kb5 Kg7 h8N Kh7 h6 R8g7 Bg3 Qc2 Bf2 Nfd8 Nf7 b1R+ Nb3 Rd1 Na1 Rdd3 Ne5 Nf7 Ng4 Kh8 h7 Rd2 Rc5 Rd5 Nh6 Re5 Rd5 Rg8 Nc6 Kg7 h8R Rd8 Re8 Kh7 Re7 Rdg8 Rc7 R8g7 Ne7 Bd7+ Rc6 Rd8 Rgh5 Bc8 Rc3 Re2 Rg3 Re3 Rgg5
2n4b/n1R1B3/k3B1NN/2NnP2n/bR2p1rb/Pr3RPQ/q1N2R2/4KN2 b - - 0 1 illegal: No proof kernel
b1rR1b1Q/2NN4/N7/1prPB1r1/Pn1P4/B1bn1q1b/B1BkR1B1/4N2K b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 a4 Kf7 f4 h5 Kf2 b5 f6 Kg6 f7 Kf5 g6 Ke4 g7 e5 a6 c5 a7 h4 f5 c4 f6 h3 Nf3 h2 Bb2 c3 Ne1 c2 Nc3+ Kf4 Qh5 c1R Na2 e4 Nb4 Rc4 Na6 Be6 Rd1 Nh6 g8B Be7 f8B Rc2 f7 Bc8 Bh7 Nc6 Bc3 Rb8 a8N Bh3 N8c7 Rg8 Rg1 h1B Bf5 Bf6 Ba3 Bg7 f8N Nf7 Nd7 Qf8 Qh8 Rc8 Bh7 Nb4 Be5+ Kg4 Bg6 Rc5 d3 Bh6 Rd2 Kg5 Re2 e3+ Kg3 Rg7 Kh2 Kg4 Bh7 Rg5 g3 Bg7 d4 Rg6 Bd6 Ra8 Nf3 Ne5 Rc2 e2 Ndb8 e1B Re2 Bc3 Ne1 Be4 Rgg2 Na2 Kh1 Bc2 Rgf2 Bb1 Bg2 Rg5 Rf7 Bg6 Rd7 Nb4 Rd8 Be8 Bc2 Ned3 Be5 Bc6 Nd7 Kf5 Bb1 Rc8 Ba2 Rg6 g4+ Kg5 Re4 Ba8 Re3 Qf5 Re4 Bf8 Re3 Rg7 Re4 Kg6 g5 Qf3 Re3 Kf5 Re2 Nc1 g6 Rg8 g7 Ncd3 Rb2 Ke4 Rf2 Ke3 Rd2 Be7 Rc2 Rf8 Rf2 Rf5 Rb2 Rg5 g8B Bf8 Bh7 Nf4 Bhb1 Nfd3 Rf2 Qe2 Bc2 Kd2 Rf4 Qf2 Re4 Qf3 Re2+
3b3K/3B4/1rRB1Q1n/PN1B1P1P/1R3BRq/1rp1Rn2/1k1B3N/1b2nr1r b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 h4 c5 a4 b5 d4 g5 f4 c4 a6 g4 f6 e6 a7 g3 h6 g2 f7 c3 h5 Nf6 h7 Qa5 f5 Ng8 d6 Bh6 f8B Ba6 d7+ Ne7 Kf6 e5 d8R e4 d5 e3 d6 e2 d7 e1N Bd2 Bg5+ Kg7 Be3 Re8 Bg5 d8B Nc6 Bc7 Ne5 Na3 N5f3 Bcf4 Qd8 a5 Rb8 a8B Rb6 Rh4 Bb7 Qc1 Kb3 Rg4 b4 Bb5 Ng8 Bd7 Nh6 Nb5 Be4 Ra4 Bb1 Re3 Bh4 Qd1+ Kb2 B8d6 b3 Rb4 Re8 h8R Re5 Ne2 g1R Ned4 Rh1 Bd5 Re8 Rg8 Qg5+ Kh8 Reb8 Rc8 Qe7 Rg5 Qe4 Rg3 Bd8 Rg4 Qe7 Rc6 Qh4 Qe2 Be4 Qg2 Ne5 Ne2 N1d3 Qf2 R6b7 Rf3 Ka1 Na7 b2 Nd4 b1R Rbc4 R7b3 Nab5 Kb2 Rb4 Rbf1 Rfg3 Ne1 Nf3 Bb1 Qd4 Rb7 Nh2 Rb6 Re3 N5f3 Qf6
kNnb4/1r3b2/rB1P1q1B/2Q2RNP/Nn1N2Nn/3B2R1/1bPbK1Bp/8 b - - 0 1 illegal: No proof kernel
n1n5/1k1N1N1R/RP1BKQ2/R1q2R1b/1nP1bb2/nP3N1B/4Rrp1/Nr6 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 a5 Kc4 e5 Kd5 a4 h4 a3 f4 a2 c4 g4 f6 g3 b3 e4 b6 d6 c6 e3 f7+ Ke7 c7 Kd7 h6 e2 h7 e1N f5 Na6 h5 Bh6 f8R Nd3 f6 Qe7 f7 Bf4 h6 Rb8 Qf3 Bb7+ Kd4 d5 c8R Qb4 Rce8 Kc6 Ba3 Nc7 Re2 Na8 Rh5 Ne7 Bh3 g2 Rg5 Qb5 Bd6 Nb4 Na3 Nc8 Nc2 Qa5 Rf5 Qb5 Rg8 Qa5 Rgg5 Qc5+ Kc3 Re8 f8N Re4 h8N d4+ Kb2 d3 Kc3 d2 h7 d1B Nf7 Qa5 h8R Qc5 Qf2 Re6 Rh7 Rh6 Re8 Bh5 Nd7 Re6 Nf3 Re1 Re2 Rc1 Rb1 a1N Qd4 Rd1 Qf6 Rf1 Rb2 Rh1 Ra2 Rb1 Nce1 Nac2 Ra6 Na3 Nc2 Ne7 Na1 Rf8 Rg8 Nc8 Ra5 Qb5 Kd4 Qc5+ Ke4 Ba6 Rgg7 Kb7 Rgg5 Bb5 Ra6 Ba4 Rd5 Bb5 Kf5 Bc6 Rde5 Be4+ Ke6 Rg8 Rgf5 Rg3 Nd2 Rf3 Rd5 Rf2 Nf3 Qc6 Rb5 Qc5 Rba5
b1nBbb2/2PPN3/KR6/3NrR2/B3Pr2/1R1R1R1Q/2pq4/kQ1nnn1R b - - 0 1 illegal: No possible last move, all moves rejected
N1R2NNB/1P1PbP1B/2n5/6b1/2KbQk1N/1r1n2N1/3Rp1rn/BB1b3q b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 b4 Ke5 f4+ Kd6 g4 e5 f6 c5 f5 a5 g6 h5 g5 h4 f7 a4 f6 a3 g7 a2 g6 h3 b6 e4+ Kc4 Ke5 d4+ Kf5 b5 h2 b7 e3 b6 Nc6 b8B Bb7 d6 Nce7 d5 Kf4 d7+ Kg5 d6 Rh3 Ne2 Ra3 Qd4 Bc8 b7 Ra7 Nd2 Qc7 d8N Qc6 Bb2 Nh6 g8N Ng4 Rc1 a1B g7 Ra2 Ng3 Qf3 Qe4 Nc6 Rc2 Be7 f8N Qg2 Be5 Bd4 f7 Bf5 Rg1 h1N d7 Nhf2 Bd3 Qh1 Rg2 Nh2 Rc1 Bg6 Bb1 Nd3 Rf2 Bh5 Re2 Bg4 Nde6+ Kh4 Nc7 Kg5 Rg2 Bd1 Na8 Rb2 Bbc7 Rb3 Ba5 Rh6 Rc2 Rg6 Bc3 e2 Ba1 Rf6 Rg1 Rf2 Rf1 Rg2 Rf6 Nf4 Nf3+ Kg4 Nh4 Kg5 Rd2 Nd3 Kd5 c4 Rd6 c3 Kc4 c2 Rh6 Nb8 Rc6 c1B Rc8 Nc6 Nh6 Qe1 g8B Qf1 Bh8 Qh1 Rc2 Bd2 Bh7 Bf4 Ng8 Kg4 Qg6+ Bfg5 Rd2 Kf4 Qe4+
2r1Bb1N/1pB1PR1k/8/BPn1QbBr/6q1/r3Bn2/2PB1KQn/n2N3R b - - 0 1 illegal: No proof kernel
2N4B/BB1R1P2/6n1/2K1B1Pq/3QB1PB/3pqq1b/2kNQ1nr/R2rbq2 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Ke3 d5 Kd4 h5 c4 a5 f4 e6 b4 h4 b6 h3 b7 h2 c6 a4 b5 a3 c5 a2 f6 Kg6 f7 Kf5 b6 Rh7 c7 Na6 b8B Rh3 c6 Nf6 b7 Nc5 Ba7 Ncd7 b8B Nh5 Bb2 Ne5 Ne2 Ng6 Nec3 Bb4 f8B Qe8 Na4 Be1 Nb6 e5+ Kc5 Ke4 Be7 d4 Nd2+ Ke3 g3 d3 Bg2 e4 Bh8 Be6 Rg1 h1Q c8Q Rh2 c7 Bh3 Qd8 Qf8 c8B Qe8 Bf1 Qf3 Bbe5 Rb8 Bf5 Rb7 Nc8 Rb1 Qc2 Rd1 Bg2 Ke2 Qd4 e3 Be4 Qf7 Rb1 a1Q Rb7 Qb1 Rd7 Qh7 f5 Nhf4 f6 Qhh5 f7 Qc1 Bh1 Ng2 g4 Qb1 Kc4 Qb6 Bb4 Qbf6 Qa2 Qf1 Qab2 Q6f3 Kc5 Bh4 Nb3+ Rd2 Nb6 Kd1 Kd5 e2 Kc6 e1Q Kc5 Q3e2 Bf5 Qff2 Ba5 Qfe3 Nc8 N2f4 Bb7 Ng2 Bfe4 Q2f3 Qa2 Rc2+ Bc3 Rc1 Rf1 Rb1 Rh1 Q1g1 Be1 Ra1 Qf2 Rb1 Nd2 Kc2 Qe2 Ra1 B1g3 Qgf2 Re1 Qf1 Bgf4 Bf2 Bg3 Rc1 Bh4 Ra1 Rb1 Be1 Rb4 Rb1 Ra4 Rd1 Ra1
1K1bq2R/B2NbP1P/1n1N2p1/1R6/1BB1k1bn/BN2PrrQ/3b4/3q1NB1 b - - 0 1 illegal: No proof kernel
n3brq1/3Pq2B/2qBP1rR/1R4NR/Rpk2bKn/Rq2NP1Q/3R2Q1/8 b - - 0 1 illegal: No proof kernel
3KbrB1/1qP5/1Rk1N2B/1R5p/QP6/1qB1n1Q1/r1NB2PB/1bb1nBb1 b - - 0 1 illegal: No possible last move, all moves rejected
1nBK4/3nr3/3P1n1r/n3Np2/Bn1kPP1B/5BR1/NB2Qqrb/R2Q3B b - - 0 1 illegal: No possible last move
NN2R3/B2B1k2/bqB2BPP/nb2p3/b1r5/R1q1P1r1/1bNQ1N1r/3K2N1 b - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 dxc5 g5 a4 Nc6 axb5 Ne5 f3 g4 f4 Nf3+ Kf2 Ng5 fxg5 Rh6 Ke1 Rh8 c4 a5 b4 f5 h4 e5 c6 d5 c5 d4 b6 a4 h6 f4 b7 a3 b8N a2 c7 f3 h7 d3 b5 g3 c6 g2 b6 Ra3 h5 Ne7 b7 Ra6 Qd2 f2+ Kd1 Ng6 Nd7 Bb4 b8N Ba5 Nf6+ Kf8 Ng4 Kf7 Na3 Bc3 Nc2 Bd7 c8B Ra4 c7 Bb5 Bd7 Ne7 c8N Rc4 Nb6 Bb2 Na8 Nc6 e3 Qb6 h6 Rc8 h8B Na5 Bf6 R8c7 Be2 f1B Bf3 Rb7 Rb1 a1Q Bfc6 Qa3 Ra1 Qc3 Ra3 Ba6 Nf2 Rc7 Nf3 g1R Rh3 Rgg4 Ng1 Rg3 Rh4 Rc8 Rd4 Rc7 Rd5 Rh4 Rd6 Rh2 Re6 Rc8 Re8 Rc7 Qe2 d2 Qe1 Bfb5 Qe2 Ba1 Bb2 Rc8 Bf3 Rc4 Bfc6 Qb3 Bc3 Bb2 Bd4 Qc3 Qd3 Qb7 Ba7 Qb6 Ke2 Qb3 Qd6 d1B+ Ke1 Qc3+ Qd2 Rch4 Nb4 Bb3 Nc2 Rc4 Kd1 B3a4 g6+
q1Qq4/2p1RR2/P1QB2rR/2rn3B/bk2Rq2/3R1P1N/1NP1K3/qn1R3n b - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 e5 bxa5 g4 d4 Bh6 dxe5 Bg5 hxg5 Ke7 Nd2 Kf7 Nb1 Ke8 a4 Ke7 e4 h5 a6 b5 a7 d5 a5 d4 e6 Kd6 e7 Kc5 e8R b4 a6 g3 f6 g2 e5 b3 g6 d3 e6 d2+ Ke2 h4 e7 h3 g7 h2 f7 b2 f8R Nf6 g8Q Ng4 Rf7 Kb4 Nc3 b1N Na4 Nc6 Nb2 Bd7 Nh3 g1Q Bg2 Rb8 a8R Rb5 Bf3 Rc5 Qf1 Rhh5 Qg2 Rh6 Ra3 Rg6 Rd3 Be6 Rc8 Bb3 Qh8 Qd6 Rcd8 Ba4 Qf8 Qf4 R8d6 Nh6 Bh5 Ng4 Qd5 Qg2 Rd1 h1Q Qe6 Qd5 f3 Nf2 Qc8 Qg1 Qh6 Nh1 Re6 Qd8 Re4+ Qgd4 Rh8 Qf8 e8R Ne7 Rhh7 Nd5 R8e5 Qe8 Ree7 Qc6 Rh8 Qa8 Rhh7 Rg5 Qc6 Rg6 Nc4 Qh8 Rh6 Qe8 Bb2 Qd8 Be5 Rg3 Bd6 Rg6 Re1 d1Q+ Kf1 Qdd2 Rd1 Qc3 Ke2 Qa1 Nb2+
1nb1b3/1q2N3/B2BR2B/6B1/1P2Nbp1/NR1nb1P1/4P2k/nNNKn1rQ b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 e5 fxe5 b5 h4 a5 a4 g4 axb5 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Qf6 Rh2 Qd6 Rh1 Qd8 d4 Kd7 b4 h5 g6 c5 g7 f5 b6 h4 g3 a4 d6 Ke6 d7 c4 b7 f4 d5+ Kf5 e6 a3 e7 a2 e8N f3 d6 h3 Nc7 c3 Qb3 f2+ Kd1 h2 Bh6 Nf6 g8N Ne4 Nb5 Nc5 Ne7+ Ke4 Nh3 Nd3 N5a3 Qc7 Ng5+ Ke3 Bg2 f1N d8N Kf2 d7 Nd2 Ndc6 Nf3 d8B Nfe1 Nd4 Rh7 Rg1 h1B Qd5 Bg7 Nb3 Bd4 Nc1 Be3 Qb3 Qd7 Bd5 Qb5 Bc4 Bc6 Rh1 Kg2 Ne4 Qd5 Ba6 Be8 Rh5 Qf7 Re5 Kh2 Re6 Qf3 Qd5 Qh1 Qf5 Rf7 Qd5 Rf1 Qf5 Rg1 Qf3 Nc6 b8B Bf4 Bbc7 Nb8 Bd6 Be3 Nbd2 Qg2 Rb1 a1N Rb3 Qh1 Bb6 Bf4 Ndb1 Qg2 Be3 c2+ Kd2 Qh1 Na2 c1B+ Kd1 Bd2 Nc1 Qg2 Bd4 Bde3 Bf6 Qh3 Bfg5 Qh5 Bh4 Qd5 B4g5 Qb7 Qh1+
kR2bKR1/1rR2Q2/4N1Pp/2R5/b1rNN1PP/3B1p2/1nbnnq2/R1N1B3 b - - 0 1 illegal: No possible last move, all moves rejected
2B2k1R/r7/b2np1K1/1Nb2NnB/1Q2PrbP/1PqB1p1N/R7/1N2Br1B b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 c5 a4 c4 axb5 c3 dxc3 Bb7 c4 Ba6 c5 Bc8 Kf2 f5 Kg3 a5 Kh4 d5 c4 a4 c6 e6 c7 d4 b3 d3 b6 f4 b7 d2 c5 a3 c6 a2 h6 Qd7 Kh5 Bd6 h7 Qf7+ g6 Be7 Nh3 Na6 b8N Bd8 Qe1 d1B Bd2 Qd7 g7 Bh4 Kg6 Nh6 g8B Qe7 Bf7+ Kf8 e4 f3 Bg2 Nc5 Na6 Nb7 Be8 Bd7 c8B Qc5 Nc7 Qc3 Nb5 Nf7 c7 Nbd6 Ba6 Ng5 c8B Bf2 Bf7 Bc5 Be8 Qd4 Ba5 Ra7 Qb4 Qc3 Bf7 Ke7 Be8 Rf8 h8N Bc2 Nf7 Bd3 Nh6 Rf4 Nf5+ Kf8 Kh6 Bg1 Bh5 Bc5 Kg6 Bf1 N5a3 Bc6 Bd3 Bb7 Nb5 Ba6 Bd8 Nh7 Bh4 Ng5 Be1 Rg4 Rg1 Rf4 Bh1 Bg2 Nf2 Bf1 h4 Bh3 Rg2 Bg4 Nh3 Qd4 Nd2 Qh8 Rc1 a1R Nb1 Qd4 Rc4 Qc3 Ra2 Bd4 Rc7 Bg1 Rh7 Bc5 Nd2 Rd1 Nb1 Rc1 Bd2 Rg1 Be1 Rf1 Rh8+
bn2k3/1q4B1/1P2B3/RR1B1QBN/3rnB1p/1n1pb1B1/1QbP1rP1/2N1K3 b - - 0 1 illegal: No proof kernel
4k3/r1RbRR1P/3b2qn/5pB1/2PQ3R/P4QR1/brNrRKp1/1n3BN1 b - - 0 1 illegal: No possible last move, all moves rejected
2b3r1/4BkPr/5N1Q/pp1qb1RB/N1Br3P/n1RbB3/P1RK3n/3RB3 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 g5 exd5 c4 fxg5 c3 bxc3 Qd6 c4 Qb6 c5 Qd8 c4 a5 h4 b5 d4 f5 c6 e5 g6 f4 h6 f3 h7 f2+ Kd2 e4 d6 Qe7 c5 Nh6 d7+ Kd8 d5 Qe5 c7+ Ke7 d8R Ng8 d6+ Ke6 d7 Kf6 c6 Qe8 Nc3 Kg7 Nge2 Ra7 Na4 Qe5 Rh3 Ra6 Nf4 Qh5 Bc4 f1B Rc3 Bd3 Nd5 Nh6 Nf6 Qd5 Qh5 Bd6 Rb1 Re8 h8B+ Kf8 Rb2 Be5 Rbc2 Ng4 Qh6+ Ke7 Bg7 Nh2 Bf8+ Ke6 g7 Kf7 Bc5 Rb6 Bf2 Rg8 Bg3 Na6 Be1 Bb7 c8R Nb4 c7 e3+ Kd1 Ba6 Rg2 e2+ Kd2 Re6 Rg5 Bb7 Rb8 Rd6 c8B Nc2 Ra8 Re6 Ra7 Ba6 Rc7 Na3 Bb7 Rb6 Bc6 Bc8 Rc2 Qe6 Bf3 Rd6 Bg4 Rd4 Rc6 Qd5 Bh5+ Ke7 Kc3 Rh8 Be3 Rh7 Kd2 Qh1 Bb3 Qd5 R6c3 Ke6 Bc4 Ke7 B1f2 e1R Bg3 Rf1 Be1 Rff4 Rh8 Rf5 d8B+ Ke6 Be7 Rf1 Be2 Kf7 Rd8 Rf2 Ng8 Rf6 Bd1 Ra6 Nf6 Ra8 Bh5+ Bg6+ Bd3 Qh1 Bg4 Be6 Bh3 Rg4 Bc4 Rb8 Rd7 Rg8 Kd1 Bf5 Rdd3 Rd4 Bg4 Qd5 Bh5+ Bg6 Ke2 Bd7 Rd1 Bc8 Bg4 Bd3+ Kd2 Ba6 Be2 Bc8 Bh5+
k2rN3/q2Rp1P1/1N2b3/2B1P1R1/1B2QNB1/1B2b1nK/1nP1prnN/3b2B1 b - - 0 1 illegal: Other
k1b2NB1/1P5p/r3n1B1/4P3/1NRRrbQ1/2Nq1p2/B2N1KPB/1r1bN1n1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 e4 d5 b4 Kd7 c4 Kc7 e6 Kb7 e5 f5 c6+ Kc7 e7 a5 e8B f4 c5 a4 g6 a3 g7 d4 Rh4 d3 Nc3 d2+ Kf2 a2 Qg4 d1B Bg6 Be6 b6+ Kc8 b7+ Kc7 b5 Nf6 g8B Bc8 Bfc4 Ne8 Nf3 Qd3 b6+ Kd8 c7+ Ke7 c6 Ra5 Ne1 f3 Bf4 Bh6 Rc1 a1R Ba2 Ng7 Bh2 Rb1 Rc2 Ne6 Rc1 Bd7 c8N+ Kd8 Nd6 Bf4 Nde4 Ra4 Nd2 Bc8 c7+ Kd7 Rc2 Nc6 Rc1 Re4 b8N+ Ke7 Rc2 Ncd4 Nd7 Ne2 Nf8 Ng1 Rc1 Ba6 c8N+ Kd8 Ne7 Bc8 B8f7 Rg8 Ned5 Rg7 Bg8 Ra7 Nb4 Ra6 Qg3 Bb7 Qg4 Kc8 Na4+ Kb8 Rc4 Bc8 Nc3 Bg5 Qg3 Kb7 Rf4 Ka8 Qg4 Re3 Rfe4 Bf4 Red4 Re4 b7+
k1N4r/P1rp2P1/b1B3n1/5rRq/1P1R1Bp1/Bb1nB3/6K1/BR2bRNQ b - - 0 1 illegal: No proof kernel
3Qk2r/1Kn1n3/1B1R2q1/pBP2PB1/qb2rBN1/P1B1RNp1/1Q6/1Bb4n b - - 0 1 illegal: No possible last move
4Q2n/5rq1/1BB1P3/2R3qR/b1pBNpn1/k1Pr2b1/2RNPB1b/K3R1R1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 e5 a4 e4 axb5 e3 dxe3 Nf6 e4 Ng8 e5 Bc5 Qd3 Bd6 Qd1 Bf8 Kd2 Ke7 Kc3 a5 b4 f5 Kb2 d5 h4 c5 e6 Kd6 c3 f4 b6 a4 g6 c4 g7 d4 b5 Kc5 h6 d3 b7 d2 b6 Nc6 b8B Ra6 b7 Ra7 h7 Bd7 h5 Nf6 g8R Ng4 h6 Ne7 Bc7 Ng6 b8R Qg5 Ra2 a3+ Ka1 Be7 Rc2 a2 Nh3 Ba4 Bb6+ Kb5 Rbc8 Bf6 Rc6 Rf7 Bg2 Bd4 Rf1 Bf2 Re1 Bg3 Nf2 Bh2 Rg7 Rd8 h8R Rd3 Ne4 Bg3 Rhh7 Nh8 Ba3 Bh2 Bac5 Bg3 Bf2 Bh2 Qc1 d1Q Qa3 Qd2 Qe7 Qc1 Rh1 Qg1 Qe8 Bg3 Bf3 Qg2 Nbd2 Qg1+ Kb2 a1B+ Ka2 Qg2 Re1 Bb2 Rg8 Ba3 Ka1 Bc5 Rgg7 Bb3 Rg6 Ka4 Rg8 Be3 Rc5+ Ka3 Rgg7 Qd8 Rgg5 Qe7 Rh5 Qd7 Rg7 Ba4 h7 Bd4 Rg8 Bh2 Rg7 Bf6 Rg6 Bh4 Rg7 B4g3 Rg8 Ng6 h8B Qe7 Bhd4 Nh8 Nf6 Qf8 Bc6 Qd5 Rgg5 Qg7 Nfe4 Qde5 Rb5 Qf5 Rbb1 Qff6 Rc5 Qh4 Rg1 Qhg5 Rbe1
2q4r/1N2r3/KP1Bkp2/nR6/3N1p1N/1QPN2Pb/B1B2nB1/nBb3qR b - - 0 1 illegal: Other
4N1Q1/q1b1r2Q/P1b5/1k2p1QQ/4qQnP/1r1QBR2/2pP1R2/KN1Bn2b b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kd7 a4 e5 f4 g5 f6 c5 h6 b5 f5 b4 f7 g4 a6 b3 a5 g3 d6 Kc6 a7 b2 d7 c4 a6 c3 f6 g2 h7 Bd6 f8Q Bb7 f7 Bc8 Qh6 Qg5 f8Q Qf5 d8Q Qe4+ Ne2 g1Q Qhg5 Bd7 Ra3 Nh6 Qff4 Qd3 Nd4+ Kc5 Rh2 Qh3 Nf5 Ng4 Rf2 Qhg2 Ng7 Bc6 Ne8 Bc7 Qd3 Nd7 Rb3 Rc8 a8Q Rb8 Q1e2 Rg8 Kd1 Rg7 Kc2 Re7 h8Q Qe4 Qh7 Rb5 Ra3 Rb3 Qef3 Kb6 Be2 Nc5 Bd1 Ne6 Qgh5 Ng5 Q3g3 Nf3 Qfg5 Kc5 Q3f4 Kb4 Rf1 Qa7 Rf2 Kc5 Qc8 Rb8 Qe6 Kb6 Kb3 Ne1 Ka2 Kc5 Qeg6 Rb3 Qgg8 c2 Nc3 b1B+ Ka1 Kb4 Bb2 Ba2 Nb1 Kc5 Bd4+ Kb4 Qde3 Kb5 Qef3 Rd3 Qh3 Bad5 Be3 Rb3 Bc5 Rb4 Raf3 Rb3 Be3 Qg6 Rg3 Bh1 Rgf3 Qd3 Qhg3 Qe4 Qh3 Nf6 Qd7 Ng4 Qd3+
1RB1q3/3QQ2P/K2p2n1/1Q1Q1b2/1PNq1p1P/2N1b1n1/b1QrR3/2BQ2rk b - - 0 1 illegal: No proof kernel
2q1RK2/r4RPR/PknQ3N/1P1p1R2/4bp1B/bq1Rrn2/B2QR3/1n5N b - - 0 1 illegal: No proof kernel
bQ6/Bb3Bp1/1q1RQ3/PBk4r/PB3NB1/b4Pp1/3B1q1R/Kn1Nrn2 b - - 0 1 illegal: Other
1R2rr2/2R1P1kB/K1R2qNq/b2B4/B2p3P/r1p5/b1QnRB1P/n1NR4 b - - 0 1 illegal: No proof kernel
b4R1Q/3qpQ2/1kbrQ1K1/rBP1P1n1/2PQ2p1/2n1q1QQ/NNr2B1R/8 b - - 0 1 illegal: No possible last move, all moves rejected
3R1NB1/P1B2qb1/4kB2/b2bP1RP/q1rnR3/1BpKN1n1/Q4r1p/R2B4 b - - 0 1 illegal: No proof kernel
2k5/Pp2qr2/1P1nNbR1/brp2R2/1b1P1R2/1q1RB2N/2n1NKBN/Q4R2 b - - 0 1 illegal: No proof kernel
Nn3r2/1K1Bb3/4B2p/BbP3bq/Q3P3/p1RrQnNB/1Bk2P2/B2R1b2 b - - 0 1 illegal: No proof kernel
2bB2NB/5knn/3b2pP/P4bNR/pb4B1/NrQ4B/4P2R/1r2BqNK b - - 0 1 illegal: No proof kernel
qb1RbQ2/4P1Q1/1kPbN2B/np2Q3/5Q1r/2P4N/bKQp1Q2/4nRrB b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 b5 Kc3 d5 e4 Kd7 a4 Kc6 h4 f5 e6 g5 a6 g4 e7 g3 e8Q+ Kc7 a5 g2 e5 f4 e6 f3 c6 d4+ Kb2 f2 e7 d3 a7 Qd6 h6 Qd4+ c3 Bf5 h5 Qd8 h7 Be4 a6 Bg6 h6 Nf6 Qf7 Ne8 Nh3 g1B Nd2 Bg7 Bg2 f1B Qf2 Nd6 Nf3 Be8 Nd4 Be5 Qdc2 Kb6 Be4 Nd7 Ne6+ Nc5 Ra2 Rb8 a8Q Qc8 a7 Bgh2 Be3 Rg8 h8Q d2 h7 Bc4 Qg7 Nb7 h8Q Na5 Bh6 Bd6 Rf1 Qb7 Qe5 Rg1 Bh1 Rc8 Raa1 Ba2 Qhg7 Rd8 Qc8 Qa8 Qd7 Bb8 Qdd4 Rd6 Qda4 Rd4 Qc4 Rh4 Qcf4 Bc4 Ra4 Ba2 Rd4 Nd3+ Ka1 Ne1 Kb2 Qb7 a8Q Bd6 Qc8 Qa8 Rd3+ Bc5 Rd8 Bg3 Nd4 Bd6 Q8f5 Bh2 Qff8 Bb8 Qfg5 Nb3 Qee4 Bhc7 Qgf4 Bd6 Qee5 Na5 Ne6+
1B2rQ2/P2Bb3/b1P3k1/r4p2/n2b1b2/1BQ1qR1R/p3BPK1/2BN1NnB b - - 0 1 illegal: No proof kernel
B1N5/1N3P2/qRknn2r/Bbr1n1B1/PQ2R1Bp/q1N4P/p2KB3/2N4r b - - 0 1 illegal: No possible last move
3B1N2/NP1K2pQ/1R1N3p/qrk3Pn/1Pq3rB/4b3/bbr2B2/1R1NBB2 b - - 0 1 illegal: No possible last move, all moves rejected
1qR2N2/pb3nKQ/1q2P1p1/Bb1B1QPk/P2r4/N2N1N2/nNR2N2/5n1q b - - 1 2 legal: proof: e4 e5 d4 c5 dxe5 b6 f4 c4 e6 c3 e5 Ke7 bxc3 Na6 c4 Qe8 c5 Kd8 e7+ Kc7 e6 Qd8 Bb5 Kb7 Bf1 Kc6 Bd3 Rb8 Bf1 b5 Bd3 Rb6 Bc4 Kc7 Bb2 Rd6 Bc1 Kc6 Bf1 Rd5 Ke2 Rh5 Kd2 Re5 fxe5 g6 h4 Qb6 h5 Nc7 h6 Bg7 hxg7 Na6 Ke1 Qd8 Kd2 Kd5 Ke3+ Kc6 Kf4 h5 Kg5 f5 g4 d5 c4 h4 a4 b4 Ra2 f4 Qd3 b3 Bd2 h3 Na3 d4 Qf5 h2 Rc2 f3 Ba5 b2 Bg2 Nf6 g8Q b1N e8N d3 e7 d2 e6 d1B Nd6 Qd7 e8N Nb4 Nc7 Bb7 Ne4 f2 Na6 f1Q Nf3 Qc8 Nf2 Nh7+ Kh6 Nd2 g5 Qe1 Kg7 Qe3 Rf1 Be2 Rfc1 Qb8 Bh1 Na2 Bg2 Ba8 Nb4+ Kb7 Nbd3 Kc6 Bh1 Nf8 Bg2 Rh4 Bh1 Kb7 c6+ Kc8 c7 Nf1 c5 Rd4 Bg2 Kb7 c8N Kc6 Bh1 Nd7 Nb6 Bb7 Nbc4 Ne5 Ncb2 Kd5 c6 Kd6 c7 Nf7 Nde5 Kd5 c8N Bb5 Nb6+ Kd6 Bg2 h1Q Nbd7 Qb3 Nf8 Qb4 Nfg4 Qc5 Ned3 Qb6 Qf6 Kd5 Rc8 Ke4 Ngf2+ Ke3 Qf5 Ke2 R1c2+ Ke3 Nd2 Ke2 Bd5 Ke3 Nc5 Ke2 Nf3+ Ke3 Qh3 Kf4 Qf5+ Kg3 Nh2 Kh4 Nf3+ Kh5 Ncd3 Re4 Rd2 Rb4 Rdc2 Rd4 Qh7+
3bn3/1KQN2k1/n2Rp1nq/BN1QP3/Q1P4P/1R1Bpb2/Q4nn1/2Q2Q1r b - - 0 1 illegal: Other
K3k1rB/2b1N1q1/R1R4p/1PpR3b/BR2R3/Nnb1B1BP/n2Q3P/1b5b b - - 0 1 illegal: No proof kernel
Bk2R3/1q1pB2B/1bN1n1Pp/5P2/2RRK2R/rn1Bnn1Q/1N1P4/2r1Rn2 b - - 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 Ba6 c4 Bb5 cxb5 Ra7 Rh3 Ra6 Rh1 Ra8 Ke2 e5 Kf3 c5 a4 b3 g4 h6 a6 b2 g6 c4 b6 c3 b7 c2 g5 Qe7 g7 Kd8 f6 Kc7 a7 Qb4 a5 Qa3+ Nc3 b1N f7 Qc5 a6 Bd6 f8R Na3 g6 Nc6 b8R Nb4 Rh4 Nf6 g8B Nh7 Nge2 Nc4 Rfe8 Ne3 Na4 Qc3 Ke4 Bf8 f4 Qb3 f5 Nbd5 Rb4 Bc5 Nd4 Nf8 Bd3 Bb6 Ba3 c1N Qg4 Ne6 Qh3 Nf1 Bh7 Nde3 Nc6 Qb1 Rd4 Nb3 Nd8 Rc8 a8B Kb8 Be7 Rc1 Kf3 Rf8 Nb2 e4+ Ke2 Qc2 Raa4 Qc6 Rac4 Qb7 Kf2 Nd5 Kg2 e3 Kf3 e2 Ke4 e1N Nd1 Qc7 Nb2 Nf3 a7+ Kc8 Bc6 Qb7 a8R+ Kc7 Ra6 Kb8 Ra1 Nde3 Bd5 Rf6 Bc6 Nf8 Bd5 Rd6 Bc6 Ne6 Bd5 Rc6 Rb1 Rc3 Re1 Rc5 Bc6 Rc1 Bd5 Ra5 Bc6 Ra3 Bd5 Qa7 Ba8 Qb7+ Nc6+
3brB2/5P1N/2B4B/1bpQB1pK/R2qB2P/brP1N2N/n4b1R/2r2N1k b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 b4 d5 Nc6 dxc6 b3 axb3 Rb8 b4 Ra8 b5 Qb6 Bh6 Qc7 Bc1 Qd8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 h4 Ke4 b4 d5 f4 e5 c3 a5 c7 d4 h6 a4 h7 a3 b6 g6 b5 a2 b7 d3 b8B d2 b6 Ra6 b7 Bd6 Bd3+ Ke3 Nh3 e4 Rg1 Be7 Rg2 Re6 f6 Bd6 f7 Ne7 f8N Nd5 f5 Bd7 c8B Be7 f6 Bb5 f7 Nb4 Be5 Rb6 b8N Qd4 Nc6 Bd8 Bd7 Rg8 h8B g5 Kh5 Rb8 Nh7 Re8 Na5 Rb7 Qh1 Kf3 Nc4 d1R Bhg7 e3 Bh6 e2 Bcf4 e1B Ne3 Rc1 B3f5 Bf2 Nd2+ Ke2 Ndf1 Kf3 Bd6 Rb8 Bdf8 Rb6 Rb1 a1B Be5 Na2 Rb4 Bb2 Ra4 Ba3 Bc6+ Ke2 Rg1 Bc4 Qg2 Rb3 Qd5 Bb5 Rg4 Bg3 Nf4+ Kf2 Be4 Kg1 Nd2 Kh2 Nh3 Bf4 Rg2+ Kh1 Ndf1 Bg3 Rc4 Be1 Ra4 Bf2 Rh2#
1k1R1N1B/2n1NR1p/2r2P2/4R2B/rqB2KRr/5Pn1/2pQ1n1P/BbB4r b - - 0 1 legal: proof: b4 f5 d4 e5 dxe5 b5 g4 Qh4 gxf5 Bb7 a4 Na6 axb5 Be7 b6 Nb8 c3 Bc8 b5 Bb4 cxb4 Qd8 f3 a6 Kf2 c6 Ke3 d5 b7 g5 e6 g4 b6 g3 e7 Kd7 e8R c5 b5 c4 Nc3 a5 Nh3 g2 Ng5 g1R Ne6 Na6 b8R a4 b7 a3 b6 d4+ Ke4 a2 Nd5 Ne7 e3 Rhg8 Nf8+ Kc6 Bd3 Qd7 Kf4 R8g5 e4 Rh5 e5 c3 e6 Qd8 Bf1 d3 Be2 Rf1 Rg1 d2 Rg4 Rh1 Rb1 a1R Bc4 Qd7 Qc2 d1N Qd2 Nf2 Rd8 Ra5 Rb5 Ra7 Ra8 Kd6 b8B+ Rc7 b7 Rh4 Ba7 Kc6 Bd4 Qd6+ Be5 Qa3 b8B Ra4 Bh8 Qb4 f6 Nf5 e7 Ng3 Ra7 Bf5 Ra5 Rc8 Be5 Bb1 Rb5 c2 Ba1 Rc7 Rab7 Rc8 Rbd7 Rc7 e8B Rc8 Bg6 Rc7 Rc5+ Kb7 Rf7 Ka7 Ne7 Rc6 Rf5 Nc7 Re5 Kb7 Bh5 Ka7 Nc8+ Kb8 Ne7+
1b5B/pbn5/2q2b1B/k1rbP3/PPq2r2/1Bp1N1B1/NR5K/1B1R1QNN b - - 0 1 illegal: No possible last move, all moves rejected
3NR3/7n/nK2PB2/1P2NpBB/k1pB1Nn1/N2N2pR/3brPq1/b3Qr2 b - - 0 1 legal: proof: g4 h5 gxh5 e5 c4 b5 cxb5 e4 b6 d6 a4 e3 b4 Qd7 a5 Rh7 b5 Be7 a6 Bb7 axb7 Qd8 dxe3 Rh6 e4 Bf8 e5 Rh8 Kd2 Kd7 Ke3 f5 Kd4 g5 e4 a5 h4 c6 h6 a4 h5 g4 e6+ Ke8 h7 a3 e7 Kd7 e8N g3 h6 d5 e5 a2 e6+ Ke7 Kc5 d4 Rh3 d3 Nc7 d2 Be2 Ra7 Na3 Qc8 Bh5 Qd7 Na6 Nf6 Qe1 d1N Bg5 Ne3 Ne2 Ng4 Nb4 Qc7 Rd1 a1B Nd3 Qf4 Rc1 Qe4 Nef4 Qg2 Rc4 Ra8 Rd4 Ra4 Rd8 Re4 Rc8 Re2 Rd8 Rg8 h8B Rg7 h7 Na6+ Kc4 c5 b8N Rg6 b7 Bh6 Nd7 Kd6 b8N Rg7 N7e5+ Rd7 Rg8 Kc7 Rc8+ Kb6 Nbc6 Rc7 Nd8 Ra7 Qb1 Ka5 Qe1+ Ka4 Bg7 Ra8 h8B Nh7 B7f6 Ra7 Nb7 Ra8 Re8 Ra7 Nd8 Rd7 Nb4 Rd1 Nbd3 Rc1+ Qc3 Rf1 Qe1 Qg1 Kd5 c4 Kc6 Qg2+ Kb6 Bf8 Nd7 Bb4 Bd4 Bbc3 N7e5 Bd2 Bhf6
b2R4/1b2Bp1k/B1pr2R1/K2P4/BN1Q1r1q/nP6/2PpR1NR/B3b1nR b - - 0 1 illegal: No proof kernel
Q3B3/2Rn1p1P/1b1KQ1r1/N2bRQ2/P2kpB2/Qn2b1P1/p4N1q/r1QQ4 b - - 0 1 illegal: No proof kernel
2b1B1Rn/1R1PRpR1/2r2Bp1/1P2RQr1/3NN2K/2Pn2Q1/n6p/q1k3bR b - - 0 1 illegal: No proof kernel
3kn2r/QpQ3q1/4b3/p3P1R1/NPB1R3/pnK5/2P1RRNB/rb1Rn1R1 b - - 0 1 illegal: Other
2Rq3N/BpR2b2/4P2p/BQRkPR2/2n3P1/1BbK1N1n/1B2r2p/b1rR4 b - - 0 1 illegal: Other
r1BK4/2r1QBp1/4b3/pP2RP1k/1P2Bq2/p1qRN1Bn/NR1B1Rnb/8 b - - 0 1 illegal: Other
1qRq2R1/pb4r1/kpQ1r1P1/b3R1n1/K1p2P2/2NnN1N1/2NR2BP/4R1B1 b - - 0 1 illegal: No proof kernel
R2BqN1n/2n3R1/3P1Q2/2RbkB1R/Ppr1pbRn/4P2N/1p6/bK4QR b - - 0 1 illegal: Other
2bnN1qB/1R1b3P/1BRb1P1p/5rpk/1p3rBP/5QK1/1BrR3B/4NR2 b - - 0 1 illegal: No possible last move, all moves rejected
2nQ4/1p3Qrp/1Qp4k/rRn1P1Q1/1q1n1N2/1PPBKb2/1R2Q1N1/2B1Qr2 b - - 0 2 legal: proof: h4 a5 d4 e5 dxe5 g5 f4 a4 g4 a3 h5 Ke7 h6 Nc6 Be3 Qe8 Ba7 Bg7 hxg7 Na5 fxg5 Qf8 g6 Nc6 Nxa3 Nb8 g5 Qd8 Nb1 Ke8 Kd2 f5 e4 d5 a4 d4 a5 f4 a6 f3 b3 f2 c3 d3 e6 c6 e7 Qd7 Rh5 Qg4 Ra2 Nf6 g8Q+ Kd7 e8Q+ Kd6 g7 Nd5 g6 Qg5+ Be3 Qg2 a7 Bg4 Ne2 Qf3 Qe1 Qf7 Nf4 Na6 Rb2 Nb6 Rb5 Qc4 Na3 Nc5 Nc2 Nc8 Qgf7 Qb4 g8Q Bf3 Qd8+ Ke5 g7 Be2 Qb6 Bf3 Be2 f1R Qgd8 Re8 g8Q Re7 Qb1 Rd7 Ne1 Rc7 Neg2 Re7 Qc4 Kf6 Qgf7+ Kg5 e5 Kh6 Qe1 Rd7 Bd4 Rc7 Ke3 d2 Bd3 d1N+ Kd2 Nf2 Ke3 Nh3 Qdg8 Ng1 Qd8 Rb8 a8Q Ne2 Qaa1 Ra8 Qac1 Ra5 Qcd2 Ne6 Bc5 N2d4 Be7 Qa4 Ba3 Qb4 Qde2 Nc5 Qf5 Rg7 Qcf7 Nde6 Rc2 Rf2 Bc1 Nd4 Rb2 Rf1 Qfg5+
RQ1r4/1np1P1Bq/r1pn2NQ/1B5B/N1P3BK/R2nB3/bq1P2p1/3Bk3 b - - 0 1 illegal: Other
4B2k/4P1pQ/2R2rpB/1R2bbPR/KBnR1N1n/P2R2p1/Nb2n3/4rB2 b - - 0 1 illegal: Other
3Q2r1/N2Rp2B/2b3pR/1pq1BN2/RP3PPB/n6r/4R1rB/K2kn1Rr b - - 1 2 legal: proof: e4 b5 c4 f5 exf5 d5 cxd5 g6 a4 Ba6 h4 Nc6 h5 Bg7 a5 Qb8 h6 Bc8 hxg7 Qb6 axb6 Nb8 g4 Kf7 b4 Kf6 d4 h5 Kd2 Kg5 Kc2+ Kf6 Kb2 a5 d6 c5 d7 h4 d8B h3 b7 c4 d5 Ke5 f6 Ke4 d6 a4 f7 h2 f8R Rh4 d7 Rh7 Bc7 Rh4 d8R Rh3 Bg5 Nc6 b8B Bd7 Na3 Nh6 g8R Nf7 Be5 Nd6 Rh8 Nd4 Rh6 Nf3 Nc2 Be8 Rd7 Ne1 Nd4 c3+ Kb1 a3 Bh4 Nc4 Ngf3 c2+ Ka2 c1Q Rg1 h1R Nc6 Ra5 Nfd4 Ra8 Na7 Qc3 f3+ Ke3 Rf6 Qc1 Re6 R1h2+ Be2 Rg2 Bbc7 Qc3 Kb1 Rb8 Ra2 Qc2+ Ka1 Qf5 Bh2+ Qe5 Ra6 Qc5 f4 Rd8 Rc2 a2 Ra4 Na3 Bc4 Rc8 Bg8 Ra8 Rd8 Bc6 Rd7 Rb8 Bh7 Rg8 Kb2 a1R Nf5+ Ke4 Re2+ Kf3 Qc2 Rc1 Qb1 Rd1 Ka1 Rc1 Re6 Rd1 Be5 Ke2 Qc1 Rd2 Qc4+ Kd1 Qd5 Rd4 B2g3 Rh1 Bh2 Rd3 Qd4 Qd6 Qb6 Rh3 Qd8 Qd5 Bd4 Qd6 Re2 Qc5 Be5+
Br1Bq3/1P3p1b/r1pQ4/3Nbb1K/1P1kBPRb/R2np2B/1N2R1B1/4R3 b - - 0 1 illegal: No proof kernel
1b1b2R1/Bp1q1pnN/1n4Bk/N1KR4/1P1P1b2/7b/NQ1p1P2/RR1Nr1R1 b - - 1 2 legal: proof: g4 c5 d4 h5 gxh5 d5 dxc5 d4 e3 d3 Bh3 a5 Bg2 a4 Bf1 a3 Nxa3 Ra4 Nb1 Rd4 exd4 Bd7 Qe2 Bg4 Qd1 Bc8 Kd2 e5 Kc3 g5 Kc4 e4 h4 e3 a4 e2 b4 e1B a5 g4 h6 g3 h5 g2 a6 Bc3 a7 Bf5 a8R Bd2 h7 Be4 h6 Nd7 c6 Ke7 c7 Kf6 c8N Kg6 Na7 Qe8 Nc3 Nb8 Nge2 g1B Nc6 Bg7 Na2 Bf6 Ra5 Bh4 Rd5 Bd8 Kc5 Bf5 c4 B8g5 Na5 Qe3 Qc2 Qe4 Nec3 Qe5 Qb2 Bde3 Nd1 Bh2 Rg1 Nf6 Bg2 Bd7 Be4+ Kh5 Bg6+ Kh4 Rb1 Rd8 h8R Re8 h7 Qf5 Rg8 Nh5 h8N Bd8 Ra1 Bh6 Bf4 d2 Bc7 Bhg5 Bb6 Re1 Ba7 Ng7 Bh5 Be3 Ng6+ Kh3 Nf8 Kh4 Bg6 Bc8 Nh7 Nd7+ Kb5 Nb6 c5 Bb8 c6 Bef4 c7 Be6 c8R Qg4 Bf5 Kh5 Bg6+ Kh6 Rcc1 Bd7+ Kc5 Qe6 Bf5 Qe8 Bg6 Bh3 Rcb1 Qa4 Rdg5 Qd7 Rd5
1nb4n/1pB1R1BP/1N2R3/2rp4/1P1PBN2/1Q2pK1B/rB1k2Q1/Bn1n3b b - - 0 2 illegal: No proof kernel
bBB5/r2r2p1/p2N2BQ/p3NNr1/P2b1rn1/PB2P3/1k1N2R1/n1RK3N b - - 0 1 illegal: Other
2K1QNb1/3npp1P/1R1P4/B2R1q2/B2BprRB/Rn1r1R2/k2Pp3/2b4N b - - 0 1 illegal: Other
Nb2BKN1/3P3P/4pRNN/5b1p/1QrbRBpn/3R2P1/nkp5/1q2R2R b - - 0 1 illegal: No proof kernel
2Qn1R1B/P2r2B1/2bbkPR1/R1pB2r1/p6p/3K3R/Pr1pNN2/1BRq4 b - - 0 1 illegal: No proof kernel
1Q3RNN/r1N2n2/2b2B1b/4p1RN/pqPkq2p/4Pp1n/1PB3Q1/2K2NN1 b - - 0 1 legal: proof: f4 c5 a4 b5 axb5 g5 fxg5 c4 h4 c3 g6 Bb7 dxc3 Be4 c4 Bb7 c5 Bc8 g4 a5 g5 Ba6 g7 Bb7 h5 Ra6 Qd5 Rb6 Qd1 Rg6 hxg6 Bc8 Kd2 f5 c4 h5 c6 d5 c7 Kd7 b6 Ke6 b7 Ke5 Bg2 f4 Qb3 a4 Be4 f3 Bc2 Nd7 b8N d4 Na6 d3 Qb8 Nh6 g8N e6 g7 Qe7 g6 Qa3 Nf6 Nf7 g8N Rh6 g7 Bb7 c8N+ Qd6 Nc7 Rh7 Nce7 Ng5 Ng6+ Kd4 Nh8 Nh3 Kd1 Bc6 Nd2 Qc5 Nf1 Qb4 Bg5 Ne5 Kc1 Nf7 Rh2 e5 Rg2 h4 Nh5 Nd8 Bf6 Nf7 Rg5 d2+ Kb1 Kc5 Ra3 Kd4 Rd3+ Kc5 Rd8 d1Q+ Ka2 Qd5 Kb1 Kd4 Kc1 Bd6 Rf8 Qe4 Ne7 Bc5 g8Q Ba7 Qg6 Bb6 Ng8 Bc5 Re8 Bf8 Rc8 Bh6 Rf8 Qd6 Qf5 Qb4 Qg4 Nd6 Qg2 Re7 Na6 Ra7 Nc7 Nf7 e3+
1RBR4/2bPB1R1/1r3p1Q/4pP2/KbN1Pp2/2b1n3/2BBnNpR/2k2rR1 b - - 0 2 illegal: Other
1nQ3K1/n6r/kN1QQ2R/2p1Q1Q1/PbPQ4/2NB1bPp/1p4rp/4Br1R b - - 0 1 illegal: Other
2q2nr1/p3KpRR/1R2RP2/PB4b1/p2rR2Q/1P2N2N/1BBq1p2/r4Bk1 b - - 0 1 illegal: Other
6K1/3p1R1P/rp1PrNBk/b6p/2N2r1B/Q1bb3n/BR1Rp1BP/2B3R1 b - - 0 1 legal: proof: e4 h5 c4 f5 exf5 a5 b4 b6 bxa5 e6 g4 Nh6 c5 Nc6 g5 Ne7 gxh6 Ng8 c6 Qh4 Be2 Qc4 Bd3 Qa6 Bf1 Qb7 cxb7 Kf7 Nh3 Ke7 Ng1 Ke8 Ke2 Kf7 Kd3 c5 Ke4 g5 Ke5 g4 b8B c4 f4 c3 a4 c2 d4 g3 a6 g2 f6 Kg6 d5 Rh7 f5+ Kf7 a5 Rg7 h7 Be7 a7 Ba6 Nf3 g1B Nfd2 Bf8 Na3 Rg6 Bg2 Bfc5 Nac4 Rg4 Rb1 Bcf2 Ne4 Be1 Qf3 Bh4 Qa3 Bc8 a6 Rg6 Rb2 Bgf2 Rg1 Bb7 d6 Kf8 f7 Kg7 f8R Nf6 Bc7 Nd5 Nf6 Nf4 Bd8 Kh6 Rf7 Be4 Be7 Rf8 a8B Bd3 a7 Be1 Bae4 Ba5 a8B Bhe1 Bac6 Beb4 Ba4 Bd2 Bb3 Nh3 Ba2 Ra8 Nd5 Ra6 Bh4 Rg4 Kf6 e5 Ke7 Rf4 Kf8 Bdb4 f6 Bc3 Bg6 e4 Kg8 e3 Re7 Bd4 f7 Bdc3 f8R e2 Re3 Rf6 Rf7 Re6 Bd2 c1R Nf6 Rd1 Bc1 Rf1 Re5+ Rf4 Rd5 Bc2 Rdd1 Bd3 Rdd2
Bb1Q1K2/1PB2p1N/3R3p/2q5/N2npq1P/Nk2P1NN/p3nN2/Q2bnR2 b - - 0 1 legal: proof: g4 d5 f4 b5 a4 a5 axb5 e5 c4 e4 cxd5 h6 g5 Rh7 g6 Ra6 gxh7 g5 Nc3 Re6 Nb1 Re5 fxe5 Bb7 Nh3 Ba6 Ng1 Bc8 Kf2 Kd7 Ke3 c5 h8N a4 d4 g4 Kf4 c4 Kf5 a3 h4 a2 b4 g3 b6 g2 b7 c3 b5 c2 b6 Qe7 e6+ Kd6 Nh3 g1N Nf2 Nc6 b8N Qc7 Ng6 Nge7+ Kf6 Nh3 Na3 Ng1 Nf4 Qa7 Na6 Qd7 Nh5 Nh3 Nc5 Qb7 Bf4+ Ne5 e3 c1Q Ng3 Qa6 Bc4 Qb5 Rf1 Bd7 Na4 Nf5 e7 Bc6 e8N+ Kd7 d6 Ba8 d5 Kc8 d7+ Kb7 d8N+ Ka6 d6 Ka5 d7 Kb4 Bd5 Nd4 Ne6 Bc6 d8Q Nd3 Ng5 Bd6 Kg7 Qbc5 Nf6 Ne1 Nfh7 Ng1 Ngh3 Bb8 Bc7 Nge2 Kg8 Bd7 Ba8 Bg4 b7 Qg5+ Kf8 Qf4 Rh1 Qc6 Rf1 Qb5 Rc1 Bf3 Rc6 Qc5+ Rd6 Bg4 Qa1 Kb3 Nb1 Nc1 Nb2 Bd1 Na3 Nce2 Na4
3q2r1/1pN3B1/Rp4N1/RbnBP1Qp/p3nbNK/RP3kN1/1P3p1N/5R2 b - - 0 1 illegal: Other
R1qBNqr1/7b/Nr2p3/2p2QkB/p1B1PN2/3p2np/1N1P1K1P/R3B2N b - - 2 3 illegal: No possible last move
R1Bkr2B/R2r2p1/1B1R1PPQ/qbKp3R/N1n2q2/B1b3n1/N2Pb3/1n2R3 b - - 0 1 illegal: No proof kernel
n4Kb1/1n3R2/3B1n2/2qp2p1/r3NP1k/r1QPB1B1/2b2BP1/bNRQ1bBB b - - 0 1 illegal: Other
2BKQ1Nr/b3p3/BPq1QnR1/2p4R/2r2kb1/2P1P1Nn/bBr2r1B/1B1B4 b - - 0 1 illegal: No possible last move, all moves rejected
rk3b1n/R2Qqb1Q/RB1pPnbq/2N1rN1N/7p/2b2K1B/3PN2P/4NN2 b - - 0 1 illegal: No proof kernel
n1RN1q2/3pr1Rp/Q2b1kn1/4r2P/1Pn1bR2/1K1N1Nn1/1RBP1R2/2B1N2q b - - 0 1 illegal: No proof kernel
6k1/1b1ppbBr/rNrP1pqR/R1bB2n1/3R1P2/BQB4n/2PK1R2/B5N1 b - - 0 1 illegal: No proof kernel
bBN2B1R/p2n1N2/Q1r3b1/3p4/2B1k2p/nBRBr2P/P2Pb2n/KQ3qB1 b - - 0 3 illegal: No possible last move, all moves rejected
2B3r1/4rkp1/2Q3PR/5N1q/1B2Rp1n/N1p2P1n/KNPnN1Rq/R2b1R1b b - - 1 3 illegal: No possible last move, all moves rejected
R1qB1r1k/pB1p1Q1p/P4nRP/1KN1q3/2NPB1b1/7B/2Rb1n2/R1n3Br b - - 1 3 legal: proof: e4 f5 exf5 g5 f4 c5 fxg5 Nf6 b4 Ng8 bxc5 Qc7 Qg4 Qa5 Qd1 Qd8 Ke2 Kf7 Kd3 Kg7 Kc4 e5 h4 b6 a4 e4 d4 e3 g4 e2 a5 e1Q f6+ Kf7 a6 Qc7 h5 Qd6 h6 Qde6+ Kb5 Bd6 c4 Nc6 g6+ Kf8 f7 Bf4 g7+ Ke7 f8B+ Kf7 g5 Qh3 g6+ Kf6 Nd2 Qc3 Nh3 Qa3 Qf3 Qg3 Nf2 Ne5 c6 Rb8 c7 Nd3 c5 Qc3 c6 Bb7 c8R Qg5+ Qd5 Qe5 Nc4 Bd2 c7 Ba8 Rg1 Qc2 Qc5 Bf3 Qd5 Bg4 Bh3 Qc3 Bd6 Qc2 Bca3 Nc1 Nd3 Rb7 Nc5 Rb8 Bb4 Qc3 Ka4 b5+ Ka5 Qc2 Bc3 b4 Qf7+ Kg5 Rg3 Nf6 g8B b3 g7 b2 Be7 b1N Bd8 Rb6 Ra8 Rb2 c8R Kf5 Bb4 Nc3 Rc6 Nd1 Kb5 Ra2 Bba5 Nf2 Bac7 Ra3 Rg1 Re3 Bd6 Re1 Rg2 Qe8 Bh2 Rh1 Bg1 Qce4 Rg3 Q4e5 Rc3 Kg5 Rc2 Kf5 Qe7 Kg6 Bd5 Rf8 g8B Qc7 Rd6 Qc8 Qe6 Qe7 Bb7 Qe8 Qd5 Qe5 Be6 Bf4 Qf3 Bd2 Bf5+ Kf7 Bfe4 Kg8 Qf5 Kh8 Qh5 Ne8 Rg6 Nf6 Qf5 Be1 Qe6 Bd2 Qf7
2b4r/r5kB/2p1q1p1/1N2qQP1/B5K1/1BPNB1N1/n1p1PbRN/RnB2r2 b - - 0 1 illegal: Other
1R1q4/1P1pNR2/R4r1b/np1PK1BQ/NqpR3n/1B4r1/bP1N4/1Nk1N1b1 b - - 0 1 illegal: No proof kernel
1R6/1pb3pk/NrpbP3/1PP1Nr2/B6N/bbQ2N2/2qnKN2/BnR1QN2 b - - 0 1 illegal: No proof kernel
1R1KNbk1/pB1n2nq/4B1b1/R1pBR3/RB3p2/bP2N3/PQ1r1P1b/1R1r4 b - - 0 1 illegal: No possible last move, all moves rejected
5n2/n2p1RkB/1BnRBNb1/B1br4/1p1pRB2/RPPr2Q1/1KpP4/2N3q1 b - - 0 1 illegal: Other
5Qk1/NQ1N1p1p/R1Q1Q1bB/2pR3p/B1P4P/q1r5/1rbb1P2/1Q1Q1Knn b - - 0 3 illegal: Other
2kr2n1/BRN1N1K1/B1qP4/2pN2bq/1p1n3p/QP1BN1pP/2r1B3/Nb5R b - - 0 1 illegal: No proof kernel
2Bq1n1B/1k2R1p1/4r1R1/p1pPnbPN/1b3rp1/1qPBKB2/1N1B4/4RR1Q b - - 0 1 illegal: Other
1BR1qn2/1bpq1n1k/1R5B/p1BBrr2/1P3p2/PQ1NR3/Kb3P1p/1B1RN3 b - - 0 1 legal: proof: e4 d5 exd5 b5 c4 g5 cxb5 Bf5 h4 Bg4 hxg5 Bc8 d4 e5 Kd2 h5 Kc3 f5 Kb3 Kf7 g4 Kg7 b6 a5 g6 e4 a3 h4 g5 e3 d6 h3 b7 h2 d7 e2 d5 e1Q d6 Qde8 d8B Q1e5 d7 Ne7 Nh3 Qe3+ Ka2 Qd2 Qb3 Ra7 Bd3 Ra8 Rd1 Nbc6 b8B Rg8 Nf4 Qb4 Nd2 Qb6 Bb1 Rh8 Nd3 Rh5 Nf3 Qf7 Nfe1 Kg8 g7 Ng6 Be7 Qe3 d8R Bb7 Rd6 Nd8 Rb6 Kh7 g8R Bg7 Bc5 Qd7 Rf8 Nf7 Rc8 Nf8 g6+ Kg8 Bd2 Qee8 Bh6 Bc3 g7 f4 Re6 Re5 Rb6 Kh7 g8B+ Kh8 Qd5 Ra6 b4 Bb2 Qb3 Rf5 Rb5 Re6 Rb6 Nd6 Bf7 Ree5 Bd5 Kh7 Rd2 Ne4 Re2 Nd6 Re3 Nf7 Bc2 Nh8 Rd1 Nf7 Bb1
1Nbk4/pR1p2N1/rB3p1b/1QR2P1n/2pPK1N1/1R1n1R2/2prPN2/5qNB b - - 0 1 illegal: Other
RRnR2b1/1nN3Q1/2P5/b1rB1q2/2NbB1B1/2P1b3/qPk1K1N1/4B1R1 b - - 0 1 legal: proof: d4 b5 f4 e5 a4 h5 axb5 a5 bxa6 c5 dxc5 f5 g4 Qf6 e4 Qd8 exf5 e4 gxh5 Rh6 Ra2 Re6 Ra1 Re5 fxe5 Ra7 Ra4 Rb7 Ra2 Rb6 Ra4 Rh6 Ra1 Rh8 h4 Kf7 c3 d5 a7 g5 a8B e3 h6 e2 f6 Ke6 f7 Kf5 h7 Ke4 e6 g4 e7 g3 e8B g2 h5 Qf6 h6 Qg5 Bd7 Qf6 Nh3 g1B Na3 Ne7 Nc4 Na6 Nf4 Qf5 Ng2 Be3 Bd2 Kd3 Rg1 d4 Bd5 Rg8 h8R Rg5 c6 Nc5 h7 Nb7 Ra2 Rh5 Qa1 Kc2 Ra8 d3 Qa7 Bg7 f8N Bgd4 Rb8 Bb6 Rg8 Ba5 h8R Bd4 B7e6 Bd7 Bf3 Nc8 Bed5 Be6 Bg4 Bf7 Ne6 Rg5 Rd8 Bg8 Bgf3 Rh5 Nc7 Rg5 Be3 d2+ Kf2 e1B+ Ke2 Bg3 Bf2 Bf4 Be1 Bfe3 Ra8 Be5 Qd4 Rh5 Qg4 B5d4 Qg7 Rg5 Nh4 Rh5 Bh3 Rg5 Ng2 d1Q+ Kf1 Qb1 Bg4 Qa2 Ke2 Qf8 Bde6 Rc5 Bed5 Qf5 Rb8 Bh7 Rhf8 Bg8 Ra8 Nb6 Rdb8 Nc8 Re8 Kb3 Rd8 Kc2 Bfe4+
R2N4/Pq1q2nq/B1NRR2b/2Q5/N1P2bq1/2nP1R2/k6B/2NB1n1K b - - 0 1 legal: proof: g4 a5 e4 f5 exf5 h5 gxh5 b5 b4 c5 bxa5 c4 d3 c3 Qd2 Ra7 Qe2 Rc7 Qd1 Rc4 f3 g5 Bg2 e5 Na3 d5 Bh3 e4 Nb1 d4 Ke2 e3 Bg2 Bb7 Bf1 Be4 fxe4 Rh6 dxc4 d3+ Kf3 d2 Ke2 Re6 Kf3 Rd6 Ke2 Rd3 cxd3 Qb6 Qc2 Qd4 Qd1 Qd8 Kf3 Ke7 Kg2 Kd6 h4 Kc5 a4 Kb4 f6 g4 h6 c2 e5 Kb3 a6 b4 f7 e2 a5 e1B a7 g3 a8B Qd4 a6 Qc3 h5 Qb2 e6 Ne7 h7 Nd5 h8N Qg7 e7 Qg8 e8R Qg7 h6 Qf6 h7 Bf2 Be2 Qg6 Rh6 Qf5 Ree6 Nc6 Ng6 Nd8 h8N Ne3+ Kh1 Nf1 Ne5 Be3 Nc3 Bf4 Nc6 Qh7 Qe1 d1N Na4 Nc3 Qf2 Qf5 Rhf6 B8h6 f8R Qg4 Bd2 c1Q Bb7 Qd1 Rd6 Qd7 Qc5 Ne6 Nf7 Ng7 Nfd8 Qc2 Re1 Ka2 a7 b3 Bd1 b2 Ba6 b1Q Ree6 Qbb7 Ne2 Qcb3 Be3 Q3b6 Bg1 Q6c7 Bh2 g2+ Kg1 Ka1 Nc1 Kb1 Kf2 g1Q+ Kf3 Qd4 Kg2 Qe4+ Kg1 Qcc8 Rh8 Qh7 Kh1 Ka1 Re1 Qg4 Ree6 Qcd7 Rf5 Be3 Rf3 Bef4 Nf7 Kb1 Ra8 Ka1 Nfd8 Kb1 Ne2 Ka2 Nc1+
BbrkQ3/8/4rP2/2rNP1nP/1Nnb1nK1/2b1RR1B/2Nq4/R1B1B1R1 b - - 0 1 legal: proof: b4 b5 f4 d5 c4 e5 cxd5 f5 fxe5 h5 a4 h4 axb5 h3 g4 f4 Ra6 Bb7 Rh6 Bc6 Rxh3 Bd7 Rh7 Bf5 gxf5 Qg5 Rh5 Qf6 Rh7 Qd8 e6 a5 f6 c5 h4 g5 h5 a4 Ba3 g4 Kf2 f3 Kg3 c4 e4 f2 d4 c3 d6 c2 d5 c1B e7 Bb2 b6 Ra7 b7 Qd7 b5 Qd8 e5 Nc6 b8R Rb7 b6 Nd4 Rg7 Nb3 Bh3 f1R Nc3 Na5 Nf3 Rh6 Ne1 Rc7 b7 Rd7 Qb1 Ba1 Qb5 Rh8 Bb2 Rf4 Nc2 a3 Rf1 a2 Ra8 Ra4 b8R Rc4 Bc1 Nh6 Rf3 Rc5 Qa4 Nc4 Rb3 Rb5 Kf4 g3 Rg5 g2 Ra3 Rdb7 d7+ Kf7 d6 g1N Rg4 R7b6 e8B+ Ke6 Bg6 Nf7 Be4 Ng5 Rgg3+ Kf7 Kg4 Ne2 Rg1 Nf4 Ra6 Rc5 Ba8 Bb2 Ra5 a1B Qb5 Qe8 d8B Rg8 d7 Re6 Ra7 Bd6 Ba5 Bb8 d8N+ Kf8 Rb3 Qd7 Nc6 Ke8 Qa4 Qd3 Nd5 Bd4 Be1 Qd2 Rbe3 Bac3 Qb5 Rf8 Ra1 Kd7 Qa4 Rc8 N6b4+ Kd8 Qe8+
qRbR1Br1/kn2R1q1/B7/nN2PNQ1/2RBr3/3b1P2/N2Pq3/q3B2K b - - 0 1 illegal: No possible last move
q1Bq4/Nn2BN2/qPn1Kn1P/1B4bR/2R2bN1/r3N2P/R5QB/2qk4 b - - 0 1 legal: proof: g4 d5 a4 Kd7 d4 h5 gxh5 a5 e4 b5 axb5 Kd6 c4 Na6 cxd5 Kd7 d6 Ke6 d7 Ra7 d5+ Ke5 d6 Nb8 Nc3 Kf6 Nb1 Ke6 f3 Kf6 b6 e5 Bb5 Bb7 Bf1 Bd5 Ne2 Ra8 exd5 e4 Ng1 e3 Qd2 Rh6 Qe2 Rh8 Qd1 Nc6 Qd2 Rc8 Qd1 Nb8 Ra2 Qe7 Ra1 Re8 Ra4 Qd8 Ra1 Re4 fxe4 Qe8 Qd3 Qc8 Qd1 Qd8 Ke2 Kg5 Kf3 c5 b4 f5 b7 f4 h6 e2 b5 e1B b6 a4 e5 g6 Ke4 a3 e6 a2 Ke5 c4 e7 c3 e8B c2 Bb5 Bd2 Ba3 c1Q Ke6 f3 Nh3+ Kg4 Qf1 g5 Nc3 f2 Nd1 Kf3 Ne3 Nc6 b8B g4 Bg6 g3 Bf5 Qg5 d8N g2 d7 g1Q d6 Q1g2 Nf7 Be7 d8N Nf6 d7 Rf8 Qg1 f1Q Nf2 Qd3 h3 Ke2 Bh2 Bd6 Bb4 Bf4 Be7 Rh8 Nfg4 Rg8 Nb7 Ra8 d8R Ra3 Na5 Qg8 Rd4 Qd8 Rc4 Qf3 Rb1 a1N Rbb4 Nb3 Qg2+ Qf2 Rd1 Qa8 Ra4 Qdd8 Nc2 Bde3 Rd5 Bg5 Rdc5 Bef4 Nce3 Ke1 Re5 Qa2 Rec5 Nb4 Nc6 Na5 Na7 Nbc6 Rb4 Nb7 Rb2 Qb3 Ra2 Qa4 Bc2 Qa6 Bca4 Nb4 Bd7 Nc6 Bb5 Qab8 Bc8 Qa8 Nc2+ Kd1 Rf5 Bh4 Rh5 Bhg5 Nce3+
3qB2K/qBPB2R1/2rN2rB/3qPk2/1b2N1b1/1qQ1R2P/3r1bRN/6N1 b - - 0 1 illegal: No possible last move
5R1n/r2bBR2/P2b1Qn1/K2N1P1N/1RBbn3/P1b5/1k1bNB2/1N2nB2 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Bd7 f6 Ra5 f5 Bc8 f7+ Kd7 bxa3 Kd6 a4 Ra8 a5 Kd7 g5 b5 h3 Ra6 h4 Rf6 Nf3 g6 Ng1 Nc6 gxf6 g5 Qe2 g4 Na3 g3 Nb1 Nb8 Qh5 Bh6 Qd1 Qf8 Bg2 Qg7 Bf1 Qg5 hxg5 Bf8 d4 Kd6 Kd2 h5 Kc3 c5 g6 e5 g7 c4 Kb4 g2 a6 c3 a3 c2 Qg4 e4 Bd3 h4 Ka5 e3 Ne2 g1B Rh3 b4 Kb6 b3 Ra2 b2 Qg6 Bd7 Ka5 Ne7 g8B Rh7 Bd2 c1B Be1 Rg7 Bf2 Rh7 Rg3 h3 Qh6 h2 Rg7 h1N Qh4 Kc7 d6+ Kc6 d5+ Kc5 Qg5 Ng6 Qh6 Ba4 d7 Ng3 d8N Nh8 d6 Nd7 Nc6 Ne4 Nb4 Ne5 d7 Neg6 d8N Bd7 Nd5 Bd6 f8B Bd2+ Nec3 Kd4 f7 Nc5 Bf1 Nd3 Be7 Kc4 f8R Kb3 Ne6 e2 Nef4 e1B Rgf7 Rg7 Bg3 Bd4 Nh5 Kc2 Bf2 Kb3 Nb4 Rh7 Ne2 B2c3 Ra1 Bed2 Qg5 Ne1 Qh4 B4e5 Qf6 Bcd4 Nbc3 b1N Nbd5 Kb2 Rg7 Bc1 Rgf7 Nd2 Nb1 Ne4 Ra2+ Kb3 Rc2 Rg7 Rcc8 Kb2 Rc4 Rh7 Rg7 Bd2+ Rb4+ Ka1 Be6 B4c3 Rgf7 Bed4 Ndf4 Rg7 Bb3 Kb2 Nd5 Rg8 Ra8 Rc8 Rb8 Rc7 Rbf8 Ra7 Bc4+
2r2NKR/1rB4B/P1nR2P1/q2R4/1q3Qbq/1NkN3p/1bBB3P/2Rn4 b - - 0 1 legal: proof: c4 a5 f4 g5 fxg5 e5 b4 b5 cxb5 d5 bxa5 Ne7 e4 Nd7 exd5 Ng8 d4 Nb8 dxe5 Qe7 Bb2 Qd7 Bc1 Qd8 Kf2 Kd7 Kf3 h5 Ke4 c5 Kf5 f6 Kg6 f5 Kf7 h4 g4 f4 a4 f3 a6 h3 a7 f2 g6 c4 e6+ Kd6 a5 Kc5 a6 Kb4 g7 c3 d6 c2 g5 Qd7+ e7 Nf6 g8B Bb7 b6 Bg2 g6 Kb3 b7 Bf3 Bd3 f1Q Qd2 Bd1 Bh7 Rg8 Nf3 Ne8 Ra5 Nc6 b8N Qe2 Rd5 Qe3 Ne5 Qe1 Qf4 Qa5 Nd2+ Kc3 Nb3 Bg7 Be3 c1Q Bc2 Qc8 d7 Qb1 d8B Nc7 e8R Qg4 Nbd7 Nb5 Re6 Qh4 Nf8 Rc8 a8R Bg4 Red6 Rb8 Rg1 Rb7+ Bc7 Rh8 Rc1 Bf6 Ne6 Rc8 Nd3 Bh8 Nf8 Bd4 Na1 Qbb4 Nb3 Kc4 Qf3 Rcb8 Nd7 Nc3 Qf4 Re8 Rb8 Nd1 Rc8 Re6 Rh8 Re8 Nf8 Rc8 Qe5 Ba1 Kg8 Bb2 Qf4+ Kc3 Bd2#
r6n/b1bB1B1n/3q2Rb/1NR2P2/1NN1k3/1Kb1P1R1/B4pPB/R4nQ1 b - - 0 1 illegal: No proof kernel
3RR3/2bP3B/2R1K3/1R3PB1/1NNQ1b2/nN3rn1/1p1BbbqP/k2Bq3 b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 d5 g4 f5 e4 h5 gxh5 b4 exf5 Kf7 c4 Ke8 cxd5 Ra6 Bd3 Rb6 Bf1 Rb5 axb5 Bd7 Bb2 Be6 Bc1 Bc8 Ke2 Kf7 Ke3 Kf6 Kd4 g5 f4 g4 b6 c6 b7 g3 d6 c5+ Kd5 e5 d4 c4 h6 b3 a6 e4 d7 c3 a7 g2 a8B e3 h7 e2 Bd2 e1B Ne2 g1Q Na3 c2 Rc1 Qg4 Nc4 Qe7 d8R Nd7 b8N Nh6 Na6 Qg5 Nb4 Ne5 Bg2 Bg7 Be4 Rf8 h8B Ba6 Rg1 Qg6 Rg5 Bf2 Bc6 b2 Ba4 Rf7 Rh5 Qg2 Bb3 Rf8 Re8 Kf7 f6 Nf5 Qg1 Kg6 f7 Kf6 Rd8 Ng3 Ba4 Qe8 Kd6 Bb5 d5 Ba6 Nd4 Bb5 Rb1 c1B Bd1 Ba6 Nb3 Bb5 Na3 Be2 Rf5+ Kg6 Nc4 Bh6 Bf6 Bg5 Nca5 Bh4 Be7 Nc4+ Ke6 Na3 d6 Bf6 d7 Be5 Ra1 Bc7 Nc4 Nc2 Ra6 Na3 Bc3 Bd2 Rc6 Bc1 Bf3 Bce3 Rb5 Bc1 Kd5+ Kf5 Bg5 Qe3 Bd2 Qc3 Be3 Qe1 Bd2 Re8 Bf6 Re3 f8R Rc3 Rfe8 Re3 Re4 Rc3 Bh5 Rf3 Bg6+ Kg4 Ke6 Be3 Bh7 Beb6 Re3 Bd4 f5 Kf4 Ke7 Ba7 Rc3+ Ke4 Bh6 Bd2 Kf7 Bde3 Bhg5 Bef4 Rd3 Bae3 Bc3 Ba7 Rdd6 Bd4 Bd2 Ba7 Nd5 Kd3 Re6 Bab6 Qc5 Ba7 Qd6 Bf2 Ree8 Bf1 Be2+ Kc2 Bd1+ Kb1 Nb4 Bd3 Qd4 Be2 Nba5 Ka1 Kf6 Bfe5+ Ke6 Bf4 Nb3+
1qR5/1Nq1B3/Q2RPk2/4NP2/2N2K2/q1N2PRr/1nBpr1RB/1r1r1b2 b - - 0 1 legal: proof: e4 e5 b4 h5 g4 b5 gxh5 f5 exf5 e4 c4 Na6 cxb5 Be7 d4 Nf6 b6 Bd6 b5 Bg3 a3 Be5 dxe5 Nb4 axb4 Ng8 Ke2 Ke7 Ke3 d5 h4 g5 b7 c5 b8B a5 b6 a4 f3 a3 b7 c4 e6 g4 b5 g3 h6 g2 h5 c3 b6 c2 h7 a2 h6 d4+ Kf4 d3 Nd2 e3 Ba3+ Kf6 Bf8 c1Q Nc4 d2 Rh2 e2 Qa4 e1R Bd3 Ra6 Ne2 g1R Bc2 Rg3 Nc3 Re2 Rg2 Ra7 Qa6 Qh1 Rag1 a1Q Bbd6 Qa5 b8R Rh3 b7 Qac7 Rg3 Bd7 R1g2 Qc1 Rc8 Bb5 b8N Qa3 Nc6 Ne7 N6a5 Nc6 Nb7 Qb8 Bc7 Nb4 Bcd6 Rg8 h8R Qdc7 h7 Rg6 Rg8 Rgh6 h8N Nd3+ Kg4 Rh1 Nf7 R6h3 Nfe5 Nb2 Kf4 Rb1 R8g7 Rd1 Rd7 Ra8 Qb6 Ra4 Qa6 Rb4 Rdd8 Na4 Rd7 Rbb1 Rdd8 Qe7 Bc7 Nb2 Rd6 Qd8 Bb6 Qd7 Bg1 Qdc7 Bh2 Ree1 Nb6 Bf1 Nbc4 Re2 Be7+
r1bNk1r1/r2pBNPb/1Nr1r1NR/3PB3/2P5/Q2KR3/R2R1qB1/3q4 b - - 0 1 legal: proof: g4 c5 f4 f5 gxf5 g5 f6 b5 e4 b4 h4 g4 e5 g3 a3 Bh6 b3 Qc7 f7+ Kd8 f5 Bg5 hxg5 Nf6 exf6 c4 Bh3 Nc6 bxc4 b3 c5 Nb4 axb4 Qa5 Qg4 Kc7 Qd1 Kc6 Bf1 Qd8 Ke2 e5 f8N a5 c4 h5 d4 g2 b5+ Kc7 c6 a4 g6 a3 f7 a2 d5 h4 b6+ Kd6 f6 h3 b7 e4 b8N b2 g7 h2 c7 e3 Qa4 Rh6 Nc6 Rb8 Nc3 b1B Nf3 g1Q Qa3+ Rb4 Bb2 Qg3 Nfe5 Qf4 Bg2 Qe8 Na4 Bh7 Nfg6 Qf2+ Kd3 e2 f8R e1R f7 Qe6 Nb6 Qg4 Rd1 a1R Rd2 Qd1 Nd8 Re4 Re1 h1R Rh8 R1h5 Re3 Rh3 Nf4 Ke7 f8B+ Ke8 Nef7 Ree6+ Ng6 Ra4 Be5 Ra8 Be7+ Bg8 Qc3 R1a7 Qa3 Rf3 Rh7 Rff6 Rh8 Rh1 Rh4 Bh7 Rh6 Rc6 Ng5 Rfe6 Ngf7 Ba6 c8R Bb7 Rb8 Bc8 Na4 Rh4 Rb2 Rf4 Nb6 Rf3 Ng5 Rf8 Ngf7 Rg8 Ra2
1K5B/P1P1b2r/7r/1b3N2/1qbRP2k/1R2p1NN/B2r3N/1QRrBRq1 b - - 0 1 legal: proof: d4 c5 dxc5 h5 b4 a5 bxa5 d5 g4 e5 gxh5 d4 e4 Ne7 f3 Nd7 Bb2 Nd5 Bc1 N7f6 exd5 e4 Qe2 e3 Qd1 Ne4 fxe4 Be6 Na3 Bh3 Nb1 Bc8 Ke2 Ke7 Kf3 Kf6 Kf4 b5 c4 g6 h4 d3 a4 b4 a6 b3 h6 d2 h5 b2 a7 Bg4 h7 Rc8 a8R Be6 d6 Bf5 h6 Qe8 d7 Rc6 d8R Qe7 a5 Bd7 a6 Qe6 a7 Rc7 c6 Bb4 c5 Rb7 c7 Qe8 c8N Rc7 c6 Bc3 Rb8 Qf8 Rb3 Qg8 Nd6 Ba5 Nf5 Bb4 Nc3 b1Q Nce2 Be7 Neg3 Be6 Bb5 Bc4 Nf3 Rb7 Qe1 d1R Nh2 Rd2 Rd4 Qg7 Rf1 g5+ Kg4 Rd7 c7 Qg8 Qd1 Qb8 Bc6 Qb4 Bd5 Kg6 Bb2 f6 Bc3 Rd6 Kf3 g4+ Kf4 Rc6 Qc2 Qc1 Qb1 Qe1 Ng7 f5 Ke5 f4 N7f5 Kg5 Be6 Bb5 Kd5 f3 Bg8 f2 Be6 Rf8 h8B Rf7 h7 Rg7 Bf7 Rh6 Be6 Bc4+ Kc6 Bb5+ Kb7 Qd1 Re1 f1B Kb8 Bfc4 Rf1 Qe1 Bd5 Qf2 Be6 Qg1 Rc1 Re2 Be1 Rd2 Bg8 Rf7 Be5 Rg7 h8N Rf7 Ng6 Rfh7 Ngf1 g3 Bh8 g2 N1g3 Qf2 Be6 g1R Nf4 Rh1 Bd5 Qg1 Nh3+ Kg6 Bf2 Qa5 Rba3 Bb3 Rc5 Qf1 Qb2 Qb4 Re1 Qg2 Rcc1 Rf1 Qb1 Qg1 Ba8 Be6 Bd5 Bg8 Ba2 Bgc4 Ne2 Kh5 Rb3 Rd1 Bg3 Rf2 Rf1 Rg2 Be1 Rf2 Ng7+ Kh4 Ng3 Rfd2 N7f5+
2BR2Qq/rbR5/PBb1p1K1/1RPb2P1/1RNn4/B2Nn3/3b2pB/3k1N2 b - - 0 1 legal: proof: d4 b5 f4 a5 e4 f5 exf5 c5 dxc5 g5 b4 h5 bxa5 Ra6 g4 Rg6 gxh5 g4 Be3 Qc7 Bc1 Rg5 fxg5 Qd8 Kd2 Kf7 Kd3 d5 c4 b4 h4 b3 a4 d4 Ke4 g3 c6 g2 f6 Ke6 f7 d3 c7 d2 h6 b2 h5 Qd7 a6 Nc6 a7 Qe8 a8N Qd7 a5 Bg7 f8R Nb4 h7 Nd3 h6 Bf6 Qb3 d1B Nf3 Qa4 Ne1 Be2 Nd2 b1B Ba3 Qe8 Nb6 Bd1 Rh4 Bd7 c8R Nf4+ Nd3 Ne2 Rc7 Ba2 Rb1 Bc3 a6 Qb8 Rd8 Nd4 Be2 Nf6+ Kf4 Bc8 Nf1 Ng4 Ke4 Rg8 h8B Rg7 h7 Ne3 Kf4 Bd2 Bg4+ Ndf5 Bh3 Bf3 c5+ Bd5 Nc4 Bcb7 Rb2 Rf7 Be5 Bdc6 h8B Qa8 Rg4 Nd4+ Bhf6 Qb8 Bd6 Kd5 Rh4 Rg7 Bc8 Rh7 Qd1 Rg7 Rb5 Qa8 Qh5 e6 Qg6 Re7 Qg8 Qb8 Kg3 Rd7 Bf4 Ke4 Kh3 Kf3 Bh2 Ke2 Rg4 Ndc2 Kh4 Kd1 Kh5 Nd4 Kg6 Rh7 Nb6 Bad5 Nc4 Ne2 Bc3 Nd4 Ba5 Qa8 Bb6 Qb8 Rf7 Qe5 Rh4 Qh8 Rc7 Ba8 Nce5 Nf3 Rhb4 Nd4 Nc4 Rf7 Rcd7 Re7 Rd6 Ra7 R6d7 Bab7 Rc7
b1Rb3B/1Rn1nQBB/p2k2N1/2N4P/2n5/1pBPNr1q/4K1Pn/1N1R4 b - - 0 1 legal: proof: e4 c5 f4 d5 exd5 b5 a4 g5 fxg5 h6 gxh6 a6 b4 Ra7 bxc5 b4 Ba3 Rb7 Bc1 Rb5 axb5 Qb6 Ne2 Qd6 Ng1 Qd8 c4 Kd7 h4 e5 h5 f5 h7 e4 b6 f4 b7 e3 c6+ Kc7 d6+ Kb6 c5+ Ka7 d7 e2 c7 f3 c6 Kb6 Nh3 Kc5 Nf2 Kd6 Bb2 Be7 Bc3 Kc5 Ng4 Kd5 Qb3+ Kd6 Ne3 Nf6 Qf7 Rf8 h8B Nd5 Bhg7 Qe8 d8N Qd7 Ne6 Bd8 Nc5 Qh3 Rg1 Bg4 c8R Nc7 Ra2 Bf5 Rb2 Be4 Kf2 e1N Bd3 Bd5 Bh7 Nc2 d3 Na3 Rd1 Nc4 Kf1 f2 Ke2 f1N Bh8 Nb5 c7 Nc6 b8B Nh2 Ba7 Ne7 Bcg7 Qe6 Bb6 Ba8 Ba5 Nd2 Rb8 Qh3 c8N+ Kc6 Rb7 b3 Rc2 Nc4 Bac3 Nc7 Rcc1 Ng6 Ne7+ Kd6 Nc6 Ne7 Ne5 Ne6 Ng6 Nc7 Qe8 Rf1 Qf7 Rf3 Na4 Ncd5 Be1 Ne5 Rc8 Nc4 Nc5 Nc7 Bec3
qBbBn1k1/1pNrq3/BPQ4P/N5q1/1rB2RN1/3P3K/p3N3/1q1R1R2 b - - 0 1 legal: proof: b4 c5 e4 f5 exf5 h5 a4 d5 c4 e6 cxd5 c4 g4 Na6 gxh5 Bc5 bxc5 Nc7 Nf3 Nb5 axb5 Nh6 Ng1 Ng8 h4 Kf7 f4 a5 Kf2 g5 Kg2 c3 h6 c2 b6 a4 f6 e5 f5 a3 h5 g4 h7 a2 h6 g3 d6 e4 d7 e3 c6 e2 c7 e1Q Kh3 g2 Qf3 Qf2 Ne2 g1Q Qc6 Ra4 Na3 Qe7 d8B Qf8 Nc4 Qe8 Na5 Bd7 c8B Kf8 f7 Qe7 Bb2 c1Q Be5 Qc2 Rd1 Qb4 Bb8 Be8 Be6 Nf6 Bc4 Rg8 h8N Qg7 Rg1 Qc1 Rg4 Qh7 Rf4 Qbb1 Rf3 Qa3 Nc3 Bd7 Bd5 Re4 Nc4 Qa7 Na5 Rgg4 Ba6 Qb3 d3 Qe3 Ne2 Qg1 Rff1 Rb4 Bdc4 Rg6 Bdc7 Ke7 f8R Rg7 Nf7 Qb1 Ne5 Qg5 Ng4 Ne8 Rf6 Rf7 Bd8+ Kf8 Rg6 Bc8 f6 Re7 f7 Rc7 Rgf6 Qa8 R6f4 Rd7 Bdc7 Ke7 f8N Qhg7 Ne6 Q7e5 Nf6 Kf7 Ng4+ Kg8 Bd8 Qef6 Nc7+ Qf7 Nd5 Qfe7 Nc7+
2B5/1pk2K1B/1q1rn2q/1RB1pR2/2N2rP1/5RPN/qPBN1r2/4N1rQ b - - 0 1 illegal: No proof kernel
2k5/1N3N1b/1NrP2qN/1Pp1qB2/1PK1R2Q/1B2pp2/R1R2b2/bn1BB3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 h4 Qd7 a4 Qd6 axb5 Qd8 e4 Kd7 d4 g5 hxg5 Nc6 d6 Ke6 d7 Kd6 d5 Nb8 Rh5 a5 Qd4 Ra6 Qd1 Rc6 Rh1 Ke5 d6 Ke6 Be3 Rc2 Bc1 Rc5 Rh2 Rd5 Rh1 Nc6 f3 Ne5 exd5+ Kf5 f4 Kg6 Nd2 Nc6 Nb1 e5 Ke2 e4 Ke1 Ne5 fxe5 Qe8 Rh4 Qe7 Rh1 Qd8 Ke2 Kf5 b4 c5 g4+ Kg6 e6 f5 e7 Kf7 e8B+ Kg7 g6 Kf6 g7 h5 g5+ Ke5 g6 f4 Qd4+ Kf5 Nd2 e3 Kd3 h4 Be2 a4 Ndf3 a3 Ra2 h3 Bd1 h2 Ne5 f3 Kc4 Rh3 Qh4 Rg3 Nh3 Nf6 g8B Qb6 d8R Rg2 g7 Ne4 d7 Bd6 Bd2 Rg6 Be1 Nc3 Ng5 Nb1 Ngf7 Qb8 Rf1 h1Q Rff2 Qg2 Rfc2 Re6 Bh7+ Qg6 g8N Bb7 Rc8 Be7 d8N Rc6 Nd7 Qe5 d6 Bg5 Rab2 a2 Rb8 a1B Ra2 Bc8 Nb7 Ke6 Ngh6 Bf4 Rba8 Bg3 R8a3 Bf2 Rd3 Ra6 Rd4 Rb6 Nb8 Bd7 Re4 Bc6 Nd7 Ra6 Rf4 Be4 Rg4 Bf5 Re4 Rc6 Nb6 Bg3 Kd3 Qh5 Nh8 Qg5 Bf7+ Kf6 Bb3 Bf2 Kc4 Ke6 N8f7 Qg2 Nd5 Kd7 Nf6+ Kc8 Nd7 Qg1 Bg6 Qg5 Bh5 Qg8 Bg4 Bh7 Bf5 Qg6 Nb6+
K1RRq2k/4R1RP/8/B1Q2bNr/Pb1nPq2/B1r1B3/Bb4N1/2qnnN2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 f5 Ke3 Kf7 Kd4 g5 a4 Kg7 h4 b5 e4 f4 h6+ Kh7 h5 c6 a6 b4 a7 b3 e6 f3 e7 b2 Kc5 g4 d4 f2 d6 g3 e8R g2 d5 Qe7 Kb6 c5 d7 c4 d8B c3 d6 c2 d7 Qh4 Be7 Qh2 d8B Bf5 Kb7 Qd6 Ne2 g1B Qd5 Bh3 Qc5 Qg6 Nf4 Nf6 Bc4 f1Q Ba5 Bd4 Rg1 Nc6 Ng2 Rc8 a8R Ng4 Ba2 Nf2 Be3 c1Q Nd2 b1N Ra7 Be5 Rd8 Nd4 Bd6 Rc7+ Ka8 Nd1 Be7 Qff7 Nf1 Nd2 Bd6 Rc6 Re7 N2f3 Rc8 Kg8 h7+ Kg7 Rb1 Bf5 Rbb8 Ne1 Rd8 Qg5 Rbc8 Qf4 h6+ Kg6 Qb6 Rc3 Ba3+ Bf6 Qc5 Qe8 Rf7 Bd6 Re7 Bfe5 Qb5 Bb4 Qc5 Rf8 h8N+ Kf6 Nf7 Rh8 Qc4 Kg6 Qc5 Kh7 Bb2 Kg8 Ba3 Rh7 Ng5+ Kh8 Nf3 Rg7 h7 Rg5 Rf7 Rh5 Ng5 Bg7 Re7 Ne2 Nf3 Rc4 Ngh4 Bb2 Rgg7 Nd4 Ng5 Rc3 Ng2
2B5/1BrkBnb1/2bNb1n1/1rB5/1NPq2R1/b2NQPn1/3P2K1/1b1R1N1R b - - 0 1 illegal: No possible last move
2r1knRr/1N3B1N/B1r2B1b/N3Q3/4PRRB/1K1bbq1n/1P1RP3/4r2n b - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 e5 cxd5 b5 a4 e4 axb5 e3 fxe3 Nf6 e4 Ng8 g4 a5 d4 c5 Kd2 f5 Kc2 h5 d6 f4 g6 f3 g7 f2 d7+ Ke7 d5 h4 b6 a4 b7 a3 g5 c4 g6 a2 d6+ Ke6 Nh3 c3 Ng5+ Kf6 Qd5 h3 Na3 h2 Kb3 c2 Nc4 Nc6 b8R Nge7 g8B Nb4 g7 Qe8 d8B Qh5 d7 Ba6 Bh3 f1R Na5 Re1 Bge6 Bd3 g8R Qf3 Rg1 h1N Rg4 Bh6 Qc5 Nd5 Nh7+ Ke5 Rb6 Rc8 Rd6 Ng6 Bcg5 c1B Bh4 Nf8 Bdg5 Rc6 d8N Be3 Ndb7 Rc8 Rd1 a1R Rd2 Rac1 Rd7 Rc2 Rf7 Rc4 Qe7 R4c6 Rf6 Nf4 Qg7 Ba7 Bc4 Bd4 Ba6 Be3 Rf5+ Ke6 Qe5+ Kd7 Bf6 N4e6 Rff4 Ng5 Rg1+ Re6 Rg2 Ke8 Bf5 Nh3 R2g4 Re7 Be6 Rec7 Rg1 Rc2 R1g4 R2c6 Bf7+
kNBn1b1q/2KR1bPr/1RR1N3/2Qr1n1R/3B2B1/P1n5/NrP2bB1/b7 b - - 0 1 illegal: No proof kernel
RN4Q1/2R1Nr2/1n1qq1q1/nB2br2/B2RPPN1/5q2/bKPB2kR/4q1B1 b - - 0 1 illegal: No proof kernel
1NB2bk1/n2Rr1q1/3P1PR1/7b/bnbP2R1/1N1R1N1Q/1K1BB3/1N1rb1q1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 Kf7 Kd2 c5 Kc3 e5 g4 b5 a4 h5 f4 h4 f6 h3 a6 h2 a7 c4 a5 b4+ Kb2 b3 a6 e4 g6+ Ke8 g5 e3 g7 Kf7 g6+ Ke8 d6 e2 f5 e1B Nf3 Rh7 Be2 Qe7 Ra3 Bb7 Qd3 Bd5 Bd2 Nc6 Rf1 Rc8 a8B h1B a7 Nb4 Bb7 Be6 a8N c3+ Ka1 c2 Nb6 c1Q Nc4 Bf7 Na5 Bc4 Qc3 Rb8 Bc8 Qd7 Qe3+ Ne7 g8R Rb5 g7 Kf7 Qh6 Nec6 Qh3 Na7 Rf2 Qd1 Kb2 Re5 Rg2 Re7 Rg4 Rh4 Rh8 Rh5 Rh7 Kg8 Ng5 Bc6 Nf3 Ba4 Rg6 Bh4 Rg4 Qg1 Rg6 Kf7 Rg4 Be1 g8R+ Ke8 R8g6 Rh6 Kc3 b2 Nb3 Qb7 Qf1 Rh1 Qh3 Re4 Rd7 Re7 Rf4 Kf7 Rfg4 Bg7 Qf1 Kg8 f7+ Kh8 f8N Kg8 f6 Qc7 Ra1 Qb7 Qh3 Qc7 Na3 b1B Kb2 Bc2 Nb1 Bd1 Ra3 Qb7 Ne6 Qc7 Nec5 Qb7 Ng5 Qbg2 Na6 Qg3 Rh6 Bf8 Nb8 Q3g2 Rgh4 Qg3 Nf3 Qg7 Rf4 Bc2 Rfh4 Bg6 Rg4 Bh5 Rhg6 Qe3 Bd3 Bg3 Nc1 Rd1 Be2 Qg1 Rd3 Be1 Nb3
Kb2n1k1/2R2NN1/3PnPb1/Q2Bq1q1/3R1b1B/N2B1P1R/r2r3N/2n2b1R b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 c5 Kc4 a5 g4 e5 d4 h5 b4 e4 b6 e3 Kb5 h4 f6 e2 g6+ Ke8 b7 e1B d6 h3 g7 Kf7 d5 c4 g5 h2 g6+ Ke8 Qa4 c3 Bd3 c2 Ra3 Bg4 Nf3 Qc7 Bg5 c1N Bh4 Nh6 g8N Nd7 g7 Kf7 b8R Bf5 Ne7 Nc5 d7 Bd2 Rc8 Qf4 Kc6 Ne6 Kb7 Qg5 b5 Bg6 b6 Bf4 Nf5 B8d6 d8N+ Kg8 Rc7 Nf7 Qb5 a4 Qa5 Rh6 Rac3 Bde5 Na3 Ra7+ Kb8 Nd6 b7 Ne8 Nf7 Ra6 Rb3 Rd6 Ka8 Rd7 Rd1 h1B b8R Bg2 Rh1 Bf1 Rd8 Rh8 Nh2 Rd6 Nc2 a3 Rbc3 a2 Na3 a1Q Rdd7 Rb6 Rd6 Rb2 Rd8 Kh7 Rdd7 Rd2 Rd8 Bh5 g8B+ Kg6 Nf3 N8g7 d6 Nc5 Bb1 Re2 Rb8 Bd4 N7h6 Ne8 Bd5 Ne6 Bg3 Ba7 Rb4 Ra2 Nf7 Kh7 Ng7+ Kg8 Re3 Bb8 Bd3 Bg6 Ra4 Qae5 Rd4 Rh2 Bh4 Rg2 Nh2 Qg4 Rg3 Qgg5 f3 Rgd2 Rh3
6RR/1RN1n1bB/P2r2kq/3N1b2/1Q2r3/BqbP2Nb/3NPR1K/1n1n1B2 b - - 0 1 illegal: No possible last move
1QbNN2q/Pq1k1q2/2r2n1B/K2R2Nn/RR6/5BP1/2R2PBb/3Brrr1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 d4 b5 Kd2 e5 Kc3 h5 a4 c5 f6 e4 f7+ Kd7 a6 e3 a7 e2 d6 e1Q+ Nd2 c4 Kb4 c3 a5 h4 g6 h3 a6 c2 g7 h2 d5 Qg5 Ka5 b4 Ra4 b3 Nf3 Qee7 Nc4 Qh4 Bh6 c1R Ng5 b2 Qb3 Nf6 g8B Kd8 d7 b1Q Nd6 Qc4 Ne8 Bg7 f8R Nh5 Rf4 Qc3+ Rfb4 Re1 Be6 Qh3 Bg4 Be5 Bd1 Qf7 Qg3 Ke7 d8N Rg8 d6+ Kd7 Bfe2 Qe4 Bf3 Qb7 Rf1 h1R Qf4 Qg7 Qf8 Bh2 g3 Qf7 Rg1 Rg6 Qh8 Re3 Re1 Qh4 Re2 Rg1 Rc2 Ree1 Qe5 Qhc4 Ra1 Qb6+ Ka4 Qbc5 Nc6 Qf6 Bde2 Ref1 Qf4 Rg7 Raa2 Qfc3 Bd1 Q5d5 Ra1 Qde4 Ka5 Re7 Ra4 Qh8 Qe5 Bb7 Bg2 Kc8 Qf4 Nd7 Qe5 Rb8 a8B Ndf6 a7 Qf7 Nd4+ Kd8 d7 Rc8 Qb8 Ba6 Bb7 Qc6 Ba8 Ree1 Nde6+ Ke7 d8R Rc7 Be4 Bc8 Bg2 Qd7 Bae4 Rc6 Bef3 Qb7 Rdd2 Re2 Rd5 Ree1 Nd6 Kd7 Nd8 Rb6 Ne8+ Rd6 Re5 Rc6 Rd5+
8/NK1kr3/1PQ1bP1B/bb1q1R2/P1N1b1nN/Bn2RBrn/3R1N2/1B1n4 b - - 0 1 illegal: No possible last move, all moves rejected
3bR3/1b2BnPk/6R1/P4Br1/bNK1RB2/NnN3n1/R1P1Qn1q/r1b1B3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 Kf7 Kd3 Kg7 a4 h5 f4 d5 g4 e5 g6 b5 c6 b4 a6 b3 a7 b2 g5 d4 c7 h4 Qe2 e4+ Kc4 e3 Na3 b1B Bh3 d3 Ra2 Bb7 c8R Qd6 Re8 Nh6 f6+ Kg8 g7 d2 f5 d1N f7+ Kh7 g8N Qh2 f6 Nf2 Ne7 Nd7 Nc6 Nc5 Re4 Rg8 Nb4 Be7 f8B Bd8 f7 Nb3 Be7 Rg7 f8B Nf7 Bd7 h3 Bd2 Rg8 Be1 Rg6 Bh6 Rg8 Qh5 e2 Bf5+ Rg6 Bc3 e1B Ne2 Bd2 Rg1 Bc1 Be1 Qf4 Nc3 h2 Qe2 h1N Rg4 Qh2 Rg2 Ng3 a5 Rb8 Ra1 Ba2 a8R Bb6 Rg1 Rd8 Rc8 Rd1 Re8 Bc7 Bg7 Bb6 Be5 Bd8 Bf4 Nd4+ Kc5 Bb3 Ra2 Ba4 Kc4 Nb3 Bc8 Rf6 Bh3 Rf5 g6+ Kg7 Rg2 Rg5 Bc8 Kh6 g7 Kh7 Rg1 Bb2 Bh3 Ra1 Be6 Bc1 Rg2 Nf5 Rg4 Ng3 Bd7 Rh5 Rg6 Rg5 Bf5
2R1b2r/P5N1/R2n1B1n/1BnR1n2/P3NB2/1Q5R/Kb1NrP2/2rNr1kq b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 a4 Kf6 d4 g5 Kd2 b5 Kc3 c5 Kb3 e5 a6 b4 d6 e4 d5 Ke5 a7 e3 f6 Ke4 f7 e2 d7 e1R d6 g4 h6 g3 h5 c4+ Ka2 c3 h7 c2 h6 g2 Bf4 c1R Bb5 Bg7 f8N Na6 Nf3 g1N Rh3 Bb2 Ne6 Qh4 d8B Ne2 d7 Ng3 Ng7 Nc5 Bf6 Nf5 d8R Bd7 Rc8 Be8 Qb3 Re2 Rc6 Rd8 Ra6 Rdd1 Na3 Rg1 Nc2 Rge1 Ne3 Qh5 Ne5 Qf3 N5c4 Qh1 Rb1 Ng3 Ra1 Kf3 Nd1+ Kg2 Nd2 Nf5 Rb1 Rc3 Rc1 Rc4 Rcc3 Kg1 Rcd3 Rc1 Be7 Nf6 Rd5 Ng4 Bh4 Rf8 h8N Rg8 h7 Ngh6 Ng6 Rh8 Bf6 Ba3 Qb1 Rg8 Ne7 Rf8 Nc8 Rg8 Bc4 Rf8 Nd6 b3+ Ka1 b2+ Ka2 Rg8 Nh5 Rf8 Qc2 b1N Bb5 Bb2 N6e4 Na3 Qc3 Nc4 Qb3 Ncd6 h8R Bf7 Ng7 Rb8 Re8 Bh5 Ree5 Rh8 Re8 Bf7 Rb8 Be8 Rc8
3BR3/rN1qb3/p2nn1P1/N1bbPr1k/PR2Q3/2R3Bn/2N3N1/1KB1r2B b - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Na6 dxe5 Qg5 hxg5 Nb8 Kd2 Kf7 a4 h5 e4 b5 f4 d5 c4 g3 Kc2 b4 e6+ Kg7 g6 Kh6 f6 h4 e7 a6 e8R h3 f7 g2 c6 d4 f5+ Kg7 c5 h2 c7 Ra7 c6 Bd7 c8N Nf6 c7 Ng8 Ne2 g1B Ne7 Rh6 c8N Rh5 Qe1 Kf6 Ra3 Nc6 Bg2 Be6 Rc3 Bd5 Na3 b3+ Kb1 d3 Nd6 d2 Nf4 Kg5 f6 d1Q Nb7 b2 Nc2 Nd8 Nc6 Ne6 Nca5 Be7 f8B Bgc5 f7 Nh6 e5 Qd4 Qe4 Nf5 Bh6+ Kg4 f8B Nd6 Rd1 Rf5 Bh1 Qd2 Ng2+ Kh5 Bf4 Qd3 Nh4 Qb5 Bg3 Qd7 Bg2 h1N Rd4 Nf2 Bh1 Nh3 Ng2 Bd8 Bfh6 Be7 Bhg5 Ng7 Rdc4 Ne6 Ka2 b1R Bf6 Rb3 Rb4 Ra3+ Kb1 Ra2 Na1 Re2 Nc2 Re1 Bg5 Bf8 Bd8 Be7 Rbb3 Bf2 Rb5 Bc5 Rb4
1q1qBN1K/4QB2/1bNb4/1N1pN3/4PR1n/r1RP2bk/R1r1PR2/B1n1n3 b - - 0 1 legal: proof: b4 g5 h4 e5 hxg5 b5 a4 e4 axb5 e3 fxe3 d6 c4 Be6 c5 Nh6 b6 Nc6 e4 Bh3 b5 Nb8 c6 Bc8 Na3 Bb7 cxb7 Ng8 Nb1 Qd7 Rh2 Qe7 Rh1 Qd8 Kf2 Ke7 Kg3 c5 Kh4 a5 Kh5 f5 g4 c4 d3 d5 g6 Kf6 g7 a4 Nd2 c3 Nc4 c2 Qe1 f4 Ra2 a3 Rh4 f3 Ne5 f2 Bb2 c1B Bh3 f1N Ba1 Bf4 Qb4 Ne7 g8B Nd7 b8N Nh2 b7 Ng6 b6 Nc5 Nbc6 Bd6 b8R Bg3 Kh6 Nf3 b7 Ne1 Rc8 Nb3 b8N Nc1 Bf7 Rg8 Ngf3 Rg7 Bg8 Rc7 Nfd4 Raa7 Nb5 Ra8 Rb2 a2 Bf7 Ra3 Rc2 Qd7 Rf8 Qd8 Rc3 Rc8 Bg2 Rc7 Bf3 Rc8 Rh2 Nh4 Rf2 Rc7 Ne7 Rc5 Nbc6 Qb8 N7g6 Rc4 Rb3 Rc2 Rc3 Qd8 Bb2 a1B Be8+ Ke6 Kg7 h5 Kh8 Qb8 Bf7+ Kf6 Be8+ Kg5 Rf4 Nf5 Nf8 Kh4 g5+ Kh3 g6 h4 g7 Qd8 Rc4 Qb8 Bd4 Bc3 Qc5 Ba5 g8R Bb6 Bfh5 Raa2 Rg7 Bdc7 Rf1 Kg2 Nca7 h3 Re7 h2 Ba1 h1Q Nac6 Qh4 Rc3 Kh3 R1f2 Qf6+ Rg7 Qfd8 Re7 Ra5 Bhf7 Nh4 Rd7 Raa2 Qe7 Bd6 Ra7 Bdc7 Ra4 Bd6 Rb4 Ra8 Rb2 Ra3 Ra2
1K1n2N1/1nrBq3/1p2RNP1/Rqb5/1rB3BQ/1P1RBP2/2k5/Rb2N1rq b - - 0 1 legal: proof: e4 a5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 a3 Qa4+ Bd7 Qxa3 Be6 Qa7 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 h5 g4 c5 d4 e5 a4 b6 f6 c4 a5 c3 b3 c2 f7 h4 f3 h3 a6 h2 g6 Qe7 g7 Rh7 g5 Nh6 g8B Qc7 g6 Ng4 Ne2 Qd8 Nbc3 Rg7 Bh3 Qf6 Be3 c1R Re1 h1Q Nf4 Nc6 Ng2 Nh6 Bg4 Be7 f8N Qg1 Nd7 Qg5 Nf6 Qh2 Bf7 Rb8 Ng8 Qhh5 Ra5 Rc2 Rea1 Qh1 Bfe6 Rf7 Bd7 Rc1 Qb7 Rg7 a7 Rg1 a8B Nf7 Qa6 Rb7 Qc4 Ra7 Bb7 Qgh5 Ba6 Ncd8 Qa4 Nb7 Bc4 Nfd8 Qb4+ Kc7 Qa4 Bc5 d6+ Kb8 Kd5 e4+ Bg5 e3 Ne4 e2 Nef6 e1Q Qb4 Qh7 Be3 Qe2 Ke5 Ra6 d5 Ka7 Qe1 Qf1 Qh4 Qd3 Bdf5 Rc7 d7 Qe2 d6 Qe7+ Bfe6 Qe1 Kd5 Qb4 Bef5 Qb5 Be6 Nc6 d8R Bd7 Re8 Ncd8 Ke5 Bc6 d7 Be4 Qg3 Bb1 Qh4 Qf7 Bef5 Qh7 Re6 Qe7 R5a2 Ra4 Kd5 Nf7 d8R Ka6 Rd7 Nfd8 Ke5 Ka5 Rd3 Kb4 Ra3 Ra6 Ra5 Qg7 Be4 Ra7 Bc6 Qe7 Bd7 Ra6 Rd2 Kc3 Rd3+ Kc2 R5a4 Rc8 R4a3 Ra4 Kd5 Rb4 Ra5 Qa6 Ke5 Nf7+ Kd5 Rd8 Kc6 Qb5+ Kc7 Rb8 R5a4 Nfd8 Ra6 Na5 Ra7 Rb7+ Kc8 Rc7+ Kb8 Nab7 R7a6 Nf7 R6a5 Nfd8 Ne1+
1Nk1r2n/1q3P1R/Np1B2q1/1P1B3r/K3b1b1/PR4Rn/r3qB1B/1NNQ4 b - - 0 1 illegal: No proof kernel
N4NBB/2NQrp2/1BR1r3/bK1b1qR1/1nP2nR1/4P1n1/P5k1/r2R1qN1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kc4 Kf5 h4 Ke4 c3 d5+ Kb5 g5 e6 g4 h6 d4 e7 d3 e8R+ Be6 c4 g3 c6 d2 h5 g2 h7 Qf6 c7 Ne7 c8R Ng6 a6 Bb4 h6 Nc6 a7 Nf4 Rg8 Ba5 Na3 Nb4 Rg5 Re8 h8B Re7 h7 Bd5 Rh4 Qf5 Rc6 Rae8 a8N b6 Qa4 d1R Be3 Re6 Bc5 R8e7 e3 Re1 Rhg4 Rb1 Nh3 Kf3 Bd3 g1N Qd1+ Nge2 Ng1+ Kf2 Qd2 Re1 Rd1 Kf1 Bb1 Ng3 Qd3+ Kg2 Qd4 Bf3 Qd7 Rf1 Be5 Bd5 h8N Re1 Ng6 Rf1 Bh8 Re1 Ka4 Rf1 Nb5 Re1 Nbc7 b5+ Kb3 Rf1 Nf8 Re1 Rd4 Rc1 Bc2 Ra1 Rd1 Nbd3 Nb6 b4 Ka4 b3 Kb5 b2 Nba8 Nb4 Bb6 b1Q Bd3 Qb3 Bc2 Qbd3 Bb1 Qf1 Bc2 Qf6 Bh7 Qf5 Bg8
1Bk1n2r/N1Pp3n/R7/1B1n4/1rPB2qN/1bP5/Q1N2bq1/RKNB1rR1 b - - 0 1 illegal: No proof kernel
2N4b/1P1k4/bR2b1B1/BP3prn/K2PN3/1N2B1rB/Rq3R1Q/nq4Nq b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 h5 e4 c5 d4 f5 Kd2 a5 Kc3 a4 g4 a3 Kb3 a2 b6 h4 e6 h3 e5 h2 g6 Rh6 g7 Qe7 b5 Kd8 d6 Nf6 g8N Bb7 g5 Qc7 e7+ Ke8 g6 Rh3+ Be3 Ra5 g7 Ba6 b7 Nh5 Qd2 Rg3 Bh3 Kd7 e8N Qc6 Ne7 Rg5 g8R Bg7 Nc8 Bh8 Rg6 c4+ Kb4 c3 e6+ Kd8 d7 c2 Nf6 c1Q Qg2 Ra3 Nd2 Qb1+ Nb3 Qcc1 Qe2 Qcb2 e7+ Kc7 e8B Nc6+ Kc5 Na5 Ne4 Kd8 Rb6 Kc7 Bg6 Kd8 Nc1 Nb3+ Kb4 Kc7 d8B+ Kd7 Qg2 Nf4 Nf3 Nh5 Rf1 h1B Qh2 Bg2 Ng1 Bh1 Ned6 Bd5 Ne4 Be6 Rf4 Qg2 Rf3 Qh1 Rf2 Qb2 Rb1 Na1+ Nb3 Qc2 Rb2 Qb1 Na5 Rd3 Nb3 Rc3 Ka4 Rd3 Bc1 Rdg3 Bd2 Nc2 Bc7 a1Q+ Ra2 Qab2 Bcf4 Na1 Bfe3 Ng7 Bb4 Nh5 Ba5
2N4B/3q2nB/2QBNn1b/PRP2rn1/6N1/1B1k1R2/b2P1p2/KN2bbRr b - - 0 1 illegal: No proof kernel
1rN1BN2/r1B3KB/1PnR1Pbr/8/2B1N3/2nqprP1/Q4nR1/2k1R1bR b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Ke3 h5 Kd4 d5 Ke5 a5 c4 e6 f4 a4 b4 a3 g6+ Ke7 b6 d4 c6 d3 f6+ Ke8 b5 a2 c7 Kd7 c5 h4 b7 d2 c6+ Ke8 f7+ Ke7 f5 h3 g3 h2 b6 Bd7 c8B Rh7 g7 Qe8 c7 Nf6 g8B Rh6 Bh7 Nd5 Qc2 d1N Bc4 N5c3 Nh3 Qd8 Nf4 Be8 Bd7 Nf2 Nd2 Ra7 Ba4 Qd3 Ne4 Ra8 Rb1 a1R Qa2 Ra7 Rg1 h1R Rg2 Rf1 c8R Ra8 Rc6 Kd7 f6 Bc5 Ng6 Bd4+ Kf4 e5+ Kf5 Ra7 Re6+ Nc6 b8R Ra8 Rc8 Rb8 Bf4 Be3 Ne7 Bc5 Qb2 Ra3 Bab5 Ra7 Qa2 Bd4 Re1 Be3 Re2 Bd4 Kg5 Bc5 Nd2 e4 Bc7 Bd4 Re5 Bc5 Rd5+ Ke6 Rd6+ Ke5 f8N Bg6 Rcd8 Bd4 Nc8 Bc5 Bd5 Kd4 Bdc4+ Nd5 Re8 Kc3 Re5 Bd4 Rf5 Be3+ Rf4 Bd4 Rh4 Bc5 Rh1 Bd4 Qa5+ Kc2 Qa2+ Kc1 Ba4 Nc3 Bab5 Ng4 Ba4 Bf2 Bab5 e3 Ne4 Bg1 Ba4 Na5 Bd7 Nf2 Be8 Bh5 Kf5 Nc6 Ke6 Bf7+ Kf5 Bg6+ Ke6 Bf5+ Kf7 Bg6+ Kg7 Nh3 Bcf7 Rf3 Bc4 Nf2 Re1+
3RKQ1n/1Rbr1R1R/1P2n3/7B/kbr1PNpq/B2nB1q1/4N1Pn/N3B3 b - - 0 1 legal: proof: f4 b5 h4 g5 a4 e5 axb5 d5 fxe5 d4 h5 d3 cxd3 Bc5 d4 Bf5 d5 Bg6 hxg6 Bf8 Kf2 Kd7 Ke3 a5 Ke4 c5 Kf5 h5 e4 h4 b4 a4 d4 a3 d6 h3 e6+ Ke8 b6 h2 b5 f6 d5 c4 d7+ Ke7 b7 Kd6 e7 Kc5 Ke6 Kb4 Kf7 c3 e8R c2 b6 f5 g7 f4 d6 f3 Nd2 f2 Re7 a2 Ba3+ Ka4 Ne2 Nc6 b8B Nd4 Nb3 Qc7 d8B c1N d7 Rh7 Ke8 Qg3 Bf4 Ne6 Qd6 Nh6 g8R Nf7 Be3 Nh8 Rf7 Nd3 Rgg7 Rc8 Rd1 Rc6 Na1 Rc4 Bf6 Be7 d8N g4 Bc3 Bf8 Be1 Be7 Qb8 Bc5 Rb7 Bb4 Rgf7 Rg7 Qd6 Rh7 Qf8 Rg7 Nb3 a1B Rd2 Bb2 Na1 Be5 Rd1 Bc7 Rd2 Ng5 Ne6 Rh7 N6f4 Ne6 Rg1 h1Q Rd1 Qhh4 Rh1 Ne5 Rd8 Nd3 Rh2 Qf6 Rh5 Rg7 Rh7 Qg5 Nd4 Q5h4 Be2 f1N Bd1+ Ka5 Nde2 Nh2 Bb3 Kb5 Rf6 Rd7 Rff7 Rc1 Ba2 Ka4 Bd5 Nd4 Be6 Rc4 Bf5 Ne6 Bg6 Qf3 Bh5 Qfh3 B1f2 Q3g3 Be1
r1rrNB1q/R2N1q1P/3bpBRK/8/B1PN3N/1P1R1r2/1Bnk2bQ/1n6 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 Kf7 Ke3 Kf6 Kf4 d5 h4 a5 b6 d4 h6 g6 b7 a4 h7 a3 b3 a2 c6 d3 h5 e6 h6 d2 c7 Nd7 b8R Nb6 Nf3 Nd7 Nd4 Nc5 Rh3 Na4 Qe2 d1R Nd2 Nb6 Bb2 Na4 Rd3 Bb7 c8N Qe7 N2f3 Qf7 Nd6 Ne7 Nh4 Nc6 c4 Rg8 Bg2 Nb4 Bc6 Nc3 Ba4 g5+ Kg4 Nc2 f4 Bc6 Qh2 Nb1 Re8 Bg2 h8B+ Bg7 Re7 Rgc8 h7 Rf1 Ra7 Rf3 Ng6 Rd8 Kh5 g4 Re3 g3 Rd3 Nba3 Rc1 a1Q Rg1 Qe7 Nh4 Nb1 N6b5 Rdc8 Nc7 Qf7+ Kg4 Ke7 Kg5 Kd6 f6 Kc5 f5 Kb4 Ne8 Bf8 Bg7 Bd6 Kh6 Qe7 f7 Rd8 f8N Qf7 f6 Rdc8 Rdd1 Rd8 Ba3+ Kc3 Nd7 Rac8 Rdf1 Kd2 Bb2 Qf8 f7 Qg8 f8B Qf7 Ba3 Qb2 Bf6 Ra8 Ndf5 Qc3 Bb2 Rac8 B6e7 Qh8 Rd1+ Ke2 Rh1 Ra8 Qh3 Bf1 Bfg7 g2 Nc7 g1R Bef6 Rgg3 Rd3 Rg5 Ne8 Ke1 Nd4 Rc5 Rg1 Rcc8 Rg6 Bg2 Qh2 Qfg8 Bf8 Qf7 Re3+ Kd2 Rd3+
4rn2/NPq5/5k1N/n1B1r3/Qqrp1R2/1P6/bbBrPB1K/RNBR2N1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Kg2 a5 h4 d5 c4 f5 c6 g5 e6 a4 h6 a3 c5 a2 b6 f4 h7 f3+ Kh2 f2 h5 g4 c7 Bg7 h6 Bc3 b7 Nd7 c6 Ra5 Bg2 f1R Qa4 Rf4 Be4 Nf8 Bc2 Kf6 e7 Be6 c8R Rc4 c7 Bf7 Rb8 Bd4 c8N g3+ Kh3 g2 Kh2 Qb6 Na7 Qb4 e8N+ Ke7 Nh3 g1R Ng7 Kf6 Nf5 Rd1 Ng1 Rd2 Re8 Rac5 Re4 Ne7 Rg4 Nc6 Rf4 Na5 b3 Bb2 Nb5 Rg8 Na7 Bg6 h8B+ Kf7 h7 d4 Bf6 Re5 Bh4 Rh8 Bf2 Kf6 Nh6+ Bf5 Nc3 Rg8 Rb1 a1Q h8B+ Ke6 Bg7 Qa2 Bd1 Ke7 Ra1 Bb1 Bc2 Qaa3 Bg6 Ba2 Nb1 Qc3 Bc2 Qab4 Bf6+ Ke6 Be7 Rh8 Bc5 Rg8 Bf5+ Kf6 Nh3 Rh8 Rd1 Qg3+ Kh1 Qg7 Ng1 Qc7 Kg2 Nh7 Kg3 Rhe8 Kh2 Nf8 Bc2+
5N2/2Rp4/nR1P2r1/1K2PN1P/4qB2/b1qNBQnN/BnR1b3/bR1k1q2 b - - 0 1 legal: proof: g4 e5 a4 b5 b4 a5 c4 h5 gxh5 e4 c5 e3 c6 Be7 fxe3 Ba6 e4 Bb7 axb5 a4 b6 Bc8 b5 Ra7 e5 Rb7 cxb7 Bf8 h4 Ke7 d4 Ke6 Kd2 Kd5 Kd3 c5 e4+ Ke6 Kc4 g5 h6 f5 h5 g4 h7 f4 Na3 g3 Ra2 f3 Be3 g2 Nh3 g1Q Nc2 a3 Ne1 f2 Qf3 Qg6 Nd3 Qc7 Rc2 Na6 b8R a2 b7 a1B b6 Nf6 Kb5 Rg8 h8N c4 Be2 c3 Rhc1 Qh7 Ng6 f1Q Bd1 Ba3 d5+ Kf7 Nf8 Rg6 e6+ Ke7 e5 Ne4 Bf4 Ng3 Rb1 Ne2 Ra8 Ng3 b8R Bb7 Ra7 Bc6+ Ka5 Bb5 Rab7 Qc5 Rc7 Qe3 b7 Qd2 Ndf2 Be2 Nd3 Qc1 Kb5 Qe3 Rcb2 c2 Rbc8 c1N b8B Qd2 Bb3 Qc3 Rc2 Rg7 Rb7 Qe4 Rb6 Rg6 Rc4 Rg5 Ba2 Rg6 Ne1 Nd3 Ba7 Nb2 d6+ Ke8 e7 Kf7 Nd3 Kg7 e8N+ Kf7 Nh7 Ke6 Ng7+ Kd5 Rc7+ Kd4 Nf8 Nh1 Bh2 Ng3 Qf6 Ke3 Nf5+ Kf3 Qf7 Nh1 Bf4 Ng3 Qb3 Qce1 Rb8 Bd1 Bg1 Qd2 Rb6 Ke2 Nc1+ Ke1+ Qd3 Be2 Bc5 Qc3 Bd4 Nc4 Qf3 Kd1 Bde3 Nb2+ Nd3+
2b5/R1p2Q1B/5N1N/3r1Rb1/b1P1K1bP/kn2BB1r/bNB1Pq2/2q1NR2 b - - 0 1 legal: proof: g4 a5 d4 h5 gxh5 e5 b4 e4 bxa5 e3 d5 Nc6 fxe3 Qg5 e4 Nd8 e5 Ne6 dxe6 Qd8 Kd2 Ke7 Kd3 g5 a4 f5 c4 d5 a6 b5 a7 d4 h6 f4 h7 b4 a5 f3 a6 b3 Bg2 g4 Ra5 g3 Qf1 f2 Be4 g2 Nf3 g1Q Be3 b2 Nc3 Bh6 Nd1 Bg5 Ne1 Nh6 h4 Qf8 Bg6 Nf5 Ke4 d3 Rb5 b1B Nb2 Rb8 a8B Ba2 a7 d2 Bd5 d1B a8R Qh6 Ra7 Rd8 h8N Nd4 Bh7 Ba4 Nf7 Nb3 Ba8 Qf6 Nh6 Rd3 Rba5 Rb5 Bc6 Rbd5 Ba8 Ke8 e7 Kd7 e6+ Kd6 e8B Qc3 e7 Qc1 Beg6 Qg3 Qg2 f1B Qf2 Bfh3 Rf1 Bhg4 Qf7 Qf2 Bf5 Bb7 e8N+ Kc6 Bd2 Rh3 Nf6 Kb6 Bf4 Bc8 Bc6 Rd8 Re5 Rd5 Ba8 Kc5 Be3+ Kb4 Bfg6 Rd6 Rf5 Rd2 Ke5 Rd3 Bf3 Ka3 Ke4 Rd5 Rf4 Rd2 Ke5 Nc5 Bc2 Nb3 Ke4 Rd5 Rf5
B5N1/1P2NB2/2q4N/Qr3R1P/1BBp2Kn/b1rP1nR1/1q3qn1/1k1R2Rq b - - 0 1 illegal: No possible last move, all moves rejected
6B1/Nq4RN/3q3N/1N6/r2PpnK1/nRbbB1RQ/1nqBPP2/kB1n4 b - - 0 1 legal: proof: g4 d5 h4 g5 a4 b5 axb5 a5 c4 f5 gxf5 g4 cxd5 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bd7 Na3 Be6 Nb1 Bc8 d4 Kf7 b4 c5 f6 h5 d6 Ke6 d7 Kd5 b6 Kc4 g6 e5 g7 h4 b5 h3 f7 a4 b7 a3 b6 a2 Qd2 Kb3 Na3 g3 Qa5 c4 Nc2 c3 Nf3 h2 Ng5 g2 Be3 Kb2 Na3 g1N Bg2 c2 Kd2 Na6 b8B Nc5 b7 Ne7 g8B Nd5 Nb5 Nc3 Be4 Nh3 Rag1 a1N Rg3 Nd3 Rhg1 Bb4 f8N h1Q Nf7 Nhf4 Nh7 Qf6 d8R Bf5 Nh6 Qd6 R1g2 Kb1 Qa3 Nb2 Rg7 Ba5 R2g3 Ncd1+ Qc3 Qf3 Bc7 Bb4 b8N Qh1 Bd3 Qb7 Nc6 Be4 Ba5 Bf5 Bdc4 Bd3 Rb8 e4 Nca7 c1Q+ Ke1 Qf6 Kf1 Nc2 Ba2+ Ka1 Bb1 Qd6 Qb3 Be1 Bad2 Na3 Qe6 Qcc8 Qh3 Qc2 Kg1 Qc1 Kh2 Qc2 Bc4 Rd8 Bg8 Rc8 R3g6 Rc4 Kg3 Ra4 Kh4 Qcc5 Rg3 Qcc6 Kg4 Qc2 Bc1 Bc3 Bcd2 Qf7 Nc7 Qfd5 Rb3 Qb7 Ncb5
3Nn2R/qq2Q1PK/1B1p2B1/qb1R4/NrBNPRN1/3P1r2/2r3k1/n1r3B1 b - - 0 1 legal: proof: b4 g5 f4 e5 fxe5 b5 c4 g4 cxb5 g3 a4 Nh6 a5 Bc5 hxg3 Bf8 g4 Bc5 g5 Bb6 axb6 Ng8 Kf2 Ke7 Ke3 Ke6 Ke4 h5 g4 c5 g6 a5 g7 a4 b7 d6 b6 h4 g5 c4 b5 c3 g6 f6 Nf3 h3 Nd4+ Kd7 Kf5 a3 e6+ Ke7 Qe1 c2 Nc3 h2 Na4 Nd7 b8B a2 b7 Rh4 b6 Nc5 Bc7 Bd7 b8N Bb5 b7 Nb3 Bb6 Qc7 Rb1 Na1 Rb4 Rg4 Nd7 Rc8 b8N Qa7 Ne5 Rc7 Rg1 h1Q e3 Rh4 Rg5 Qhb7 Ng4 Rc4 Bb2 c1R Bc3 Rc8 Bc4 Rc2 d3 Rf8 Kf4 f5 Rh5 Qa5 Kg5 Nf6 Kh6 f4 g8R f3 g7 f2 Rh8 Ne8 Kh7 f1R Qe2 Qaa7 Be1 Rg1 Bf2 Rgc1 Bg1 Rf4 Qe1 Rh3 Qe2 Rhf3 Rd5 Qa5 Nh2 Kf6 e7 Re4 Nbc6 Rg4 Nd8 Re4 Nf5 Kg5 Nd4+ Kh4 Ng4 Kg3 Qe1+ Kg2 Qh4 Nc7 e8B Qaa7 Bg6 Ne8 Qh5 Nb3 Qh4 a1Q Qe7 Ref4 Nc3 Q1a5 Na4 Na1 Rb1 Rb2 e4 Rb4 Rb2+ Rf2 Rd2 Rf3 Rd1 Rfc2 Rf1 Re3 Rf7 Rf3 Rf4
n1KRb1kN/3R1pR1/1rP1b1r1/N1b1q1q1/2qP2b1/5P1B/6RB/2N1QNB1 b - - 0 1 legal: proof: h4 c5 d4 g5 hxg5 d5 dxc5 b5 a4 d4 axb5 d3 e3 Nc6 Ra4 Kd7 Ra1 Nd4 exd4 Ke8 Kd2 h5 Ke3 a5 Ke4 e5 b4 h4 g4 a4 c4 d2 f3 a3 c6 a2 c7 h3 c5 h2 b6 Rh4 b7 Bg7 b8B Kf8 b5 Qe7 Kd5 e4 Kc6 e3 b6 e2 g6 e1Q g5 Bh6 g7+ Ke8 b7 Rh3 g6 Qf8 Ne2 Bf5 c8N Nf6 Kc7 Rg3 g8R Be6 g7 Ra6 Ne7 Nd7 Bh3 Rg6 Kc8 Rb6 Nc6 Qf1 Qe1 d1B Be3 Ba4 Nc1 Qc4 Nd2 Bg4 Rb1 a1Q Nf1 Bg5 Bc7 Be7 b8R Bb5 Rb7 Qa5 Rb2 Bd6 Rh8 Qg8 Rg2 Ba4 Rh7 Be6 Rhg1 h1B Bb8 Qh8 g8N Kf8 Nge7 Qe5 Bf2 Qd2 Na5 Qdg5 Ra7 Nf6+ Rd7 Ne8 Be3 Nc7 Bf2 Na8 Bc7 Rh6 Ng6+ Kg8 Nh8 Rg6 Bb8 Be7 Bc7 Qed5 Bh2 Qde5 Rg4 Bc6 R1g3 Bg2 Bfg1 Qh4 Rg5 Bg4 Rf5 Qg5 Rd8+ Be8 c6 Bc5 Rd7 Qee2 Rfd5 Qee5 Rd6 Re6 Rd8 Rg6+ R6d7 Be6 Ne3 Bf1 Rg2 Bd3 Nf1 Bdf5 Rf2 Bg4 Rb2 Bd6 Rg2 Bc5 Rg7+
r1r2N1k/R5B1/1Pbp3r/bBNPnPN1/b2n2Q1/3R2R1/2B1R1n1/4BnK1 b - - 0 1 illegal: No possible last move, all moves rejected
B1B1bBRN/pr2R1P1/K4BbR/4P1b1/Rrr1P2n/2knQqpN/8/5N2 b - - 0 1 illegal: No proof kernel
2N2n1r/3NNN1q/R2npB1P/2R2p1r/1K1k4/B4bb1/3PPRR1/r4BqQ b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 d5 a4 d4 axb5 d3 cxd3 Kd7 d4 Ke8 d5 Bh6 Qa4 Bg7 Qd1 Bf8 h4 Kd7 b4 Kd6 b6 Ke5 b7 f5 d6 a5 g6 c5 b5 a4 b6 e6 g7 a3 h6 a2 d7 c4 h5 c3 h7 c2 h6 Ra6 Ba3 c1R Nf3+ Ke4 Nh4 Be7 Ng6 Bc5 Nc3+ Kd4 Nb5+ Ke4 Na7 Nc6 b8N Qe7 d8B Kd4 b7 Qf7 Rh2 Nb4 Rf2 Nc6 Bf6+ Ne5 Ne7 Bd6 Nd7 Qg6 b8R Bb7 Re8 Bf3 Nac8 Rc4 Rc1 a1Q Rc3 Rca4 Rc5 Qb1 Qc1 Qb7 Kd1 Qg1 Kc2 Qc7 Ng6 Ne7 Kb3 Rc4 g8R Raa4 Bb4 Ra1 Ba3 Rc3+ Kb4 Qb7+ Ncb6 Nc8 Ne7 Bb8 Qd1 Nd6 Rgg2 Qc7 Nbc8 Rcc1 Bg5 Ng6 Rg8 Nf8 Rg7 Rg8 h8N Rc3 Nf7 Rh8 Re5 Re3 Bf6 Re4 Rg8 Rh4 R8g3 Rh5 Rh3 Bb7 Rc3 Bf3 Rc6 Qd8 Ra6 Qe8 Nd8 Qg6 Nf7 Qh7 Rc5+ Ke4 Rc3 Nb5 Rg7 Qh2 Rgg2 Bg3 Rc5 Qh1 Rg1 Nd6 Bh3 Qg2 Qf1 Qh2 Qg2 Qh1 Qh2 Qg2 Qh1 Qh2 Bf1 Qg2 Bg5 Kd4 Bh4 Qh2 Rgg2 Qg1 Bf6+
n1bKR2B/4B1q1/1NP2qQ1/1P1R1N1P/2R1r2B/Rr3pb1/5nNp/1Br3k1 b - - 0 1 illegal: No proof kernel
2BNR2n/1Brq3N/npPr1P2/4pb1N/k6K/q4RQ1/1B2RPRb/3N3n b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 a4 g5 c4 e5 h4 d5 h6 Kd7 a6 Kc6 h7 d4 a7 g4 f6 d3 a5 d2+ Ke2 g3 Kf3 g2 Kg3 b6 a6 Be6 h5 Bc8 h6 Qd3+ Qf3+ Qe4 Rh3 d1N Bb2 Be7 Nc3 Bf5 Ra2 Qd5 Nge2 g1Q+ Kh4 Qg7 Nf4 Bg6 Nh5 Bb1 Bg2 Bd6 Qg3 Ne3 Nd1 Ne7 Bh1 Rg8 h8N Qh7 Ng6 Rd8 Nf8 Qd3 h7 Qa3 h8N Nf1 Nh7 Bf5 Nf7 Rd7 Rh2 Rc7 Rg2 Qe6 Kg5 Qd7 Kh4 Qa4 Ra3 Qa5 Re3 Qa3 Re2 Ng6+ Kg5 Nh8 Kh4 Rc8 Nd8+ Kc7 c6 Bc5 Qf4 Be3 Qg3 Kd6 c7 Bf4 c5+ Kd5 Rh2+ Kc4 Bb7 Kb4 c6 Ka5 Rg2 Ka4 Qg8 Bh2 Qg3 Qde7 Nf7 Rd8 c8B Rd6 Nd8 Qe8 Qg7 Ng3 Qg5 Nd7 Qg7 Nh1 Qg3 Rb8 a8R Nc5 a7 Qe7 Ba6 Rb7 Rb8 Qb3 a8R Rc7 Bab7+ Na6 Ra7 Qa3 Raa8 Qd7 Ra7 Kb4 Rba8 Nc5 Ra4+ Kb5 Rf4 Na6 Rf3 Nb4 Ra4 Na6 Rg4 Ka5 Rg8 Ka4 Re8
qnq3N1/2N3PB/PQ3KR1/rP3pRR/2b2N1b/p1r2k1R/B2n1B2/2q2N2 b - - 0 1 illegal: No proof kernel
4Q1NR/Rn2q1pB/rBq2N2/2PN3q/6Nb/1kBpbPr1/2n3P1/R4B1K b - - 0 1 illegal: No proof kernel
rBN2R1k/R4P1b/1nKR4/3B1P1q/1NQ2p1N/rr6/3p1Pqb/BBN4n b - - 0 1 illegal: No possible last move
2b2NR1/2Qb1p2/1q1RRPr1/2P2kBN/Np1b3R/r1n2B2/NnqP4/B6K b - - 0 1 legal: proof: e4 a5 h4 d5 exd5 c5 b4 g5 bxa5 c4 hxg5 c3 Nxc3 Qd6 Nb5 Qd8 Nc7+ Kd7 f4 e5 Kf2 h5 a4 b5 c4 h4 g4 h3 g6 e4 g5 b4 d6 h2 Kg2 e3 g7 e2 f5 e1Q g6 Be7 a6 Qf8 a7 Na6 a5 Nc5 a6 Nb3 Bb2 Qe5 Be2 Qe4+ Bf3 Qe6 Qc1 Nc5 Ne2 Qe3 Nc3 Ne6 Na2 Nd8 Ne6 Nh6 g8R Qb3 g7 Bf6 Qc3 Qa4 Rae1 Qb5 Ba1 Nc6 c5 Ne7 Qe5 Qe8 Re4 Nd5 Nf8+ Kc6 d7 Qb6 d8B Ng4 Qb8 Nc3 Qc7+ Kd5 Re6+ Kd4 Rd6+ Ke5 Re1+ Ne3+ Kh1 Rh3 Rh8 Rh7 g8N Rg7 Rh4 Rg6 Re2 Bh8 Nf6 Qa4 Nh5 Qc2 Bg5 Bg7 Rf2 Nd1 Re2+ Qe4 Re1 Nb2 Re2 Bh6 f6 Kf5 Re3 Qc2 Ree6 Bd7 Kg2 h1B+ Kh2 Rb8 a8R Rb7 Rae8 Ra7 Rc8 Ra8 a7 Bg2 Kg1 Bh3 Kh1 Bg4 Be3 Bf4 Rce8 Bh2 Bg5 Bg1 Rc8 Bd4 Rce8 Rb8 a8N Rb7 Rd8 Ra7 Rc8 Ra3 Rce8 Qc6 Nb6 Bh3 Na4 Qb6 Qc8 Bf1 Qc7 Ba6 Nh7 Bb7 Rg8 Bbc8 Nf8
nR2qr2/B3P2R/N1B4K/3N2P1/brN2pb1/2p1NP2/2k1rqQ1/4RBnB b - - 0 1 legal: proof: d4 e5 dxe5 b5 h4 Ke7 a4 Ke8 axb5 Be7 Qd5 Ba3 Qd1 Bf8 c4 g5 hxg5 Bc5 b4 Bb6 c5 Qe7 cxb6 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 e4 f5 g4 h5 b7 d5 b6 c5 g6 d4 b5 d3 g7 h4 Qf3 c4 Qg2 c3 Be3 a4 Na3 d2 Nf3 d1Q Nh2 h3 Nc4 Nh6 g8B+ Nf7 g5 a3 Ng4 Qa4 Re1 Na6 b8N a2 b7 a1R b6 h2 Nd7 Qe8 b8N Qc2 b7 Nc7 Ndb6 R1a2 Na6 Rb8 Nd5 Na8 Ba7 Rb2 Bh7 Rf8 Nge3 Qe2 Kg3 f4+ Kh4 Bd7 Bg6 Ba4 Bh5 Qd2 Bf3 Qd4 Kh5 Re2 Rg1 h1B Kg6 Kd7 e6+ Kc6 e7 Kb5 e5 Qd2 e6 Ne5+ Kg7 Qb2 Be4 Nf3 Kh6 Qa2 Qg4 Bg2 Rh1 Bh3 Qg2 Ng1 Bf3 Bg4 Rh4 Rc8 Rh2 Rc6 b8R+ Rb6 Rh3 Bb3 Rh5 Ka4 Be4 Rb4 Bf3 Qb5 e8B Bc2 e7 Kb3 Bc6 Qb2 Bb7 Qe8 Bc6 Qa2 Qh3 Bd1 Bh1 Qd2 f3 Qd4 Nf5 Qf2 Qg2 Kc2 Nfe3+ Kd3 Kg7 Bb3 Rh7 Ba4 Nf5 Kc2 Kh6 Re3 Kg7 Re5 Kh6 Re2 Nfe3+
Nb4K1/1q2P3/2N1pk2/P2RNpQ1/1Pr4R/2RR2n1/4nN2/qrBBBbr1 b - - 0 1 illegal: No proof kernel
B1BN1nk1/4P2R/qrp3Bb/N2b2qP/NR1pN2R/4Br2/1K1P1n1Q/r7 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Nf6 bxa5 Ne4 c4 Nf6 cxb5 Ng8 h4 g5 e4 f5 a4 Kf7 b6 d5 a6 g4 b7 f4 h6 c6 a7 g3 h5 f3 a5 g2 h7 Bd7 e6+ Kg7 e5 Qc8 e7 Nh6 e8B Be6 a6 Nf7 Ba3 Bg4 e6 Bh3 Ne2 g1R Nbc3 Qd8 Bc5 Ng5 Bg6 Ne4 Nc1 Bd6 Be3 d4 Nb3 Nf6 Qe2 f2+ Kd1 Bg2 Kc2 Be5 Kb2 Qb6 Rh4 Rf8 h8N Ne4 Nf7 Bh2 Nd8 Nd7 b8R Qa5 Rb4 Qg5 Na5 Rb8 a8N Kg8 a7 Rf3 Nb6 Bf4 a8B Nf8 Nba4 Rb6 e7 Bh1 Bh3 f1Q Qh2 Qa6 Bc8 Nf2 Ne4 Bg2 Ra3 Ra1 Rd3 Qc5 Rc3 Bh6 Rc1 Qg5 Rg1 Bh3 Rg2 Be6 Rgg4 Ba2 Rf4 Bb3 Rf7 Bd5 Rh7
NN2R2B/r3pB2/2K1P1q1/q2P4/4RRPR/1nQpbb1b/2NN2Bk/1r3n2 b - - 0 1 illegal: No proof kernel
nNB1R3/n1P1BK1R/P4b1B/6q1/2p1pQqr/1qP1rR2/2b1NR2/B4Nk1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 Qc7 d4 Qc5 dxc5 Rh7 Bg2 Rh6 Bf1 Rh8 Kd2 Kf7 Kc3 Kf6 Kd4 g5 Kd5 b5 f4 e5 a4 b4 h4 b3 a6 g4 h6 g3 a7 g2 a5 e4 a6 b2 h5 d6 c6 Rh7 c7 Bd7 Ra2 Be8 Qf3 Bd7 Ne2 g1Q Rh3 Qe3 Nd2 Rg7 h7 b1Q h8B Qbb3 h6 Ba4 h7 Nd7 Rg3 Re8 a8R Be7 Bh3 Qg1 Qf1 Rd8 Rf3 Qg5 Qf2 Rb8 Nf1 Nb6+ Kd4 Rb7 Re8 Na8 Kd5 Rb4 c3 Rb8 Bb2 Bd8 Ba1 Ne7+ Kd4 Nc8 Kd5 Na7 Rd2 Kf7 Qh4 Rg8 Bg7 Bf6 h8R Rd8 Rh6 Rh8 Bf8 Rd7 Be7 Kg7 Ke6 d5 Qg3 d4 Bg4 d3 Rh3 Bd4 f6+ Kg6 f7 Bf6 f8B Rh4 Bh6 Rd4 Bf5+ Kh5 Kf7 Rd6 Rb2 d2 Bc8 d1Q f5 Rd3 Qf4 Re3 Rh2 Qa3 Rd2 Bc2 Rhf2 Qb3 Rd7 Bh8 f6 Bg7 Ke6 Bh8 f7 Bf6 Nh2 Qdg1 f8N Q1g4+ Kf7 Rh3 Nf1 Kh4 Rd5 Rh1 Nd7 Rh2 Neg3 Kh3 Nb8 Rh1 Rd7 Rh2 Rfd2 Rh1 Ne2+ Kg2 Rh8 Rh5 Rdd8 Kh1 Rde8 Rh4 Rh7 Kg2 Nd4+ Kh1 Rdf2 Kg1 Ne2+
1Rn1B3/N2B1pQP/r2r3n/Bq4pK/P1PRbkn1/1nb1N3/R6B/2N4R b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kf2 Ke7 Kf3 Ke6 Kg4 g5 h4 d5 a4 b5 e4 b4 c4 b3 c6 b2 c7 d4 a6 d3 h6 d2 h5 Bc5 a7 Ba6 c8N Qd4 h7 Qe3 h6 Qf4+ Kh5 Qg3 Ra2 Bf2 Na3 b1N Nc2 Bb6 Ne2 Bc7 Ne3 Qf2 Bh3+ Qf5 Ba3 Ne7 Nc1 Rf8 h8B Ba5 h7 Re8 Bc5 Rd8 Qe1 d1N Qc3 Nbc6 Bf6 Rb8 a8R Ng8 Na7 Rd6 Bd8 Rb6 Rb8 Nd2 Qd4 Bc3 Bc7 Rb5 Ba5 Bb7 Rd8 Nb3 Bcb6 Ke7 e6 Nf2 Qg7 Ng4 e5 N8h6 Bd4 Rb6 Rd7+ Ke8 e7 Ra6 Bc5 Nd8 Bd4 Be4 Bc5 Nb7 Bcb6 Rd2 Rd4 Nd6 Bc5 Kd7 e8R Rd3 Rb8 Ke7 Bcb6 Nc8 e6 Qb5 Bc5+ Ke8 e7 Rd2 Bd6 Kd7 e8B+ Ke6 Bh2 Rd3 Bg1 Rd1 Nc2 Kf5 Ne3+ Kf4 Rd8 Rdd6 Rd7 Re6 Rd4 Nf2 Bf5 Red6 Bfd7 Nfg4 Bh2+
q1n2k1q/B2B1p2/b1B2P2/bq3R1N/P1r1nP1N/2NnR3/Rp2Q1K1/3B2R1 b - - 0 1 legal: proof: c4 b5 b4 g5 e4 d5 cxd5 a5 bxa5 g4 f4 g3 hxg3 Ra6 g4 Rf6 g5 Rf5 exf5 Bb7 Bc4 Ba6 Bf1 Bc8 Kf2 c5 g4 e5 d4 h5 a4 e4 g6 b4 a6 h4 g7 c4 g5 c3 g6 b3 a7 b2 a8B e3+ Kg2 c2 d6 e2 d5 e1Q d7+ Ke7 d6+ Kf6 Bb5 Qea5 Ra2 Qdc7 d8R Bd7 Be3 c1N Nc3 Qb7+ Nf3 Qaa6 Re8 Nd3 Qe2 Nc6 Ba7 Bc8 d7 Bb4 d8R Nce7 Bd7 Ba5 Rg1 Qbb5 Bac6 Bb7 Ra8 Nc8 Re3 h3+ Kh2 Bb4 Nh4 Ba5 Kh1 h2 Kg2 Qab6 Rb8 Ba6 Ra8 Qb7 Rb8 Nh6 g8N+ Kg7 Nf6 Ng8 Nh5+ Kf8 Ra8 Nf6 g7+ Kg8 Rb8 Ne4 f6 Qa8 Rb7 Qc4 Rb5 h1Q+ Kf1 Qb4 Rf5 Qb5 Be8 Kh7 Bed7 Rd8 g8B+ Kh8 Be8 Rd4 Bed7 Rc4 Bh7 Qh2 Bg6 Kg8 Bh7+ Kf8 Bg6 Qg3 Bh7 Qg7 Bg6 Qb6 Kg2 Qbb7 Ng3 Qbb8 Bh5 Qb5 Bg4 Qh8 Nh5 Qb3 Qc2 Qbb8 Bd1 Qb5 Qe2
n7/b3B2q/2pNq1P1/1b2NR2/rR1BbR1R/p5K1/PP2q3/NBQr2Bk b - - 0 1 legal: proof: g4 b5 d4 g5 c4 f5 cxb5 e5 dxe5 Na6 gxf5 g4 h4 Nc5 Rh2 Ne4 Rh1 Ng5 hxg5 Ba3 Rh6 Bc5 Rh1 Bf8 f4 Ke7 Kf2 h5 e4 a5 e6 d5 g6 Kf6 b6 h4 b7 c6 b8B h3 e7 d4 e8R d3 Be3 d2 Na3 a4 Nf3 h2 Nc2 a3 Bba7 Ba6 Bd3 Qd7 Rb8 Bc5 Rb4 g3+ Kg2 Bb5 e5+ Kg7 f6+ Kh6 f5+ Kh5 f7 Nf6 f8R Nd5 e6 Nb6 e7 Qe6 Qg1 d1Q e8N Qe2+ Bf2 Rh7 f6 Rd7 f7 Rd5 Be4 Kg4 Rf1 Rd4 Na1 Rad8 Rc4 Na8 Ne5+ Kf4 Bf5 Rd7 Kh3 g2 Kh4 Rd5 Bb1 Re4 Nd6 Be3 Rc3 Ra4 Rb3 Bb6 Rb4+ Rd4 Rc1 Bc5 Qf1 g1Q Rcc4 Qg2 Qe1 Qge4 Rf1 h1B Bg1+ Bf3 Qc3 Rd1 Rh8 Bd4 f8B Q4f5 Bc5 Qff7 Be7 Qg7 Rh5 Qh6 Rf2 Qh7 Qc2 Ke3 Kg3 Bd5 Bb6 Bc5 Rch4 Be4 Rhf5 Bd4 Bc7 Ba7 Qc5+ Kd2 R2f4 Ke1 Bf2+ Kf1 Bb6 Qc2 Bg1+ Qf2+ Kg4 Kg2 Qc1 Qf1 Bbd4 Qd3 Rh6 Qe2+ Kh4 Kh1 Kh3 Bbd3 Rhh4 Bb5 Kg3+
1qn3Nn/P2R1Bb1/1rBB2qk/K5p1/3BR2P/2RrN1P1/1R4np/1Qq1N3 b - - 0 1 illegal: No proof kernel
2Q1Rb2/NPK1p1rb/2n1PnN1/2Bb1R2/2q1p3/1B2P1BR/N2n1n2/NB4k1 b - - 1 2 illegal: Other
1r3Nk1/RN1p3N/5Rbn/K3Np2/bB2B3/2P1bPB1/QR1PbB2/q3n2n b - - 0 2 legal: proof: e4 c5 h4 f5 b4 b5 e5 g5 hxg5 a5 bxc5 b4 a3 Ra6 a4 Rf6 exf6 Qc7 Rh6 Qb7 Rh1 Qb5 axb5 Ba6 Ba3 Bb7 Bc1 Bc8 g4 Kf7 c3 e5 b6 h5 b7 a4 f3 b3 c6 b2 c7 h4 g6+ Ke6 g7 Kf7 g5 h3 g6+ Ke6 f7 a3 Qa4 h2 Nh3 a2 Ng5+ Ke7 Nh7 e4 Ke2 e3 Kd3 e2 Kc4 e1N Kb4 Nc2+ Ka5 Nd4 Bd3 Na6 b8B Nh6 g8N+ Ke6 g7 Ne2 Ngf6 Ng3 g8R Bb7 c8N Bd5 Na3 b1B Be4 Nc5 Nc4 Bc2 N8d6 Nd3 Nb7 Ne1 Ba3 Bc5 f8B Kf7 Rg6 Be3 Bab4 Bd1 Qa3 Ba4 Bfc5 Re8 Bbd6 Rb8 Nf8 Be6 Rf1 h1B N6h7 Bg2 Rf6+ Kg8 Ne5 Nh1 Rb1 a1Q Qa2 Bf7 Rb2 Bg5 Rg1 Bf1 Bf2 Be2 Bc7 Kh8 Rg4 Be3 Rgg6 Be8 Ra6 Bf7 Rgf6 Bg6 Ra7 Kg7 Ng4 Kh8 Bcg3 Kg7 Ne5 Kh8 Re6 Kg8 Rf6+
BQr3q1/1KNb1p1p/1B3Rbb/RR1N1Pk1/1b1NB1N1/nn2P3/B6P/2n5 b - - 0 2 legal: proof: f4 a5 g4 e5 fxe5 c5 d4 b5 dxc5 Ra6 a4 Rf6 axb5 Rf5 gxf5 Qf6 Ra4 Qe7 Ra1 Qd8 Kd2 Ke7 Ke3 d5 Kd4 g5 b4 a4 c4 a3 c6 a2 Kc5 d4 b6 g4 b7 g3 b5 d3 c7 d2 Kb6 g2 e6 Kf6 c5 Qd5 e7 Qd6+ c6 Qa3 e8N+ Kg5 Nf6 Qc3 Ng4 Nh6 Qb3 Bd6 Nf3+ Kf4 Nd4 g1N Bg2 Qf3 Nc3 Qe4 Nd5+ Kg5 e3 d1B Bb2 Qf4 Be4 Na6 b8N Nh3 Rg1 Be6 c8B Nf2 c7 Nd3 Kb7 Qg3 b6 Bd7 Bc3 Ba3 Ba5 Bb4 Rg2 Rf8 Rc2 Be2 Rc6 Nc1 Rf6 Bd1 Ne5 Bh5 Ng4 Bg6 Qb1 Be8 Be6 Bd7 c8B Qg1 Nb5 Re8 Nc6 Rf8 Ncd4 Nc5+ Ka8 Re8 b7 N5b3 b8R Rh8 Ba6 Rc8 Kb7 Qg2 Bb6 Qg1 Nf2 Ng4 Nbc7 Ne5 Ng4 Nc4 Bb5 Na3 Bc6 Nc2 Ra8 Qg3 Ra5 Na3 Qb2 Qg1 Rb1 a1B Ne7 Nd2 Ba2 Ndb3 Ned5 Qg2 Qf2 Bac3 Qg3 Bf8 Qd6 Bh6 Qe5 Rh8 Qe8 Bb4 Qb8 Rf8 Ka6 Rc8 Ba8 Qc2 Kb7 Qc5 Rb2 Qf8 Rc2 Qh8 Rcc5 Qg8 Rcb5
2r1nk2/3n1Rp1/P3R1PN/1bPB1rNQ/4K1n1/4BR2/1q1B1p1N/q1N1B1n1 b - - 0 1 illegal: No proof kernel
1B1qB1rR/1p1R2R1/NP3p1B/1Q6/2rnNR1K/n4P1P/kNq1B3/2qb1q2 b - - 1 2 legal: proof: g4 a5 d4 h5 gxh5 e5 dxe5 a4 c3 Bb4 cxb4 a3 bxa3 Qe7 a4 Qf6 a5 Qd8 e4 Ke7 a4 Ke6 f3 c5 Kf2 g5 Kg3 d5 b5 d4 b6 g4 a6 d3 a7 d2 a5 c4 h6 c3 h7 c2 a6 Bd7 h3 Bb5 Nc3 Bc4 Na4 Ne7 Ne2 Qd5 Nb2 Ng6 Ra4 Qd8 Rg1 Qe8 Nc3 Qc6 Be2 Bd3 Qf1 d1Q Bh6 Re8 h8B c1Q Rd4 Qc7 Rd7 Nc6 Rg2 Rab8 a8R Rec8 a7 Bc2 B8g7 Bb3 Bf8 f6 Bd6 Qd8 Bc7 Nh8 Kh4 Nd4 Bd6 Rc6 Rg1 Rbc8 Bb8 g3 Rg2 Qcc2 Rg1 Qdd2 Qb1 Qcc1 Qd3 Nf7 Qb5 Bd1 Rg2 Qe7 Rg1 Qdc2 Rg2 Nd6 Rg1 Kf7 e6+ Kg8 e5 g2 Ne4 Qd8 e7 Kf7 e8B+ Ke6 Nc4 Rc5 Nb2 Kd5 e6 Rc6 e7 Rc8 Rf1 g1Q Rf2 Qf1 Rg2 Ke6 Rg7 Nc4 Bh5 Na3 e8N Rg5 Bg6 Rcc5 Nc7+ Ke5 Be8 Rg1 Rgf7 Rg8 Na6+ Ke6 Rg7 Rc6 Bd6 Rc4 Rb8 Qg1 a8R Qf1 Nac5+ Kd5 Ra4 Nb3 Na6+ Kd4 Ng5 Kc3+ Bf4 Nd4 Rb4 Qa4 Ne4+ Kc2 Rc8 Kb1 Bb8 Qac2 Rc5 Qe1+ Ng3 Rc3 Bhf4 Nc6 Rh5 Ka2 Rh8 Qf1 Bh6 Rc5 Rbg4 Rc4 Ne4 Nd4 Rf4
2k1bn2/N2rb2q/q2B1pPp/1BRBr2b/N2R1BQ1/2R2P2/P4N2/bR1K4 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 h4 Ra7 hxg5 Ra8 e4 Na6 d4 Bd7 d6 Bc8 e5 Bg7 d5 Kf8 Qd3 Nb8 Qd1 Nd7 e6 Bh6 exd7 Kg7 Qg4 Kg6 Qd1 Bf8 g4 e5 a6 c5 a7 b5 f3 c4 Bg2 f6 Ba3 Kf7 Rh4 c3 Bf1 e4 Qa4 c2 Nc3 c1B Rh5 b4 Kd1 b3 Rb1 e3 Bb5 b2 Nh3 h6 Nf2 Qa5 d8R Qa6 d7 Ne7 d6 Ke6 g6 Rh7 g7 Ng6 g8R Be7 Rc5 Nf8 g5 Bb7 Qb4 Bc6 Na4 Rb8 a8B e2+ Kc2 e1Q g6 Qe3 Rc3 Qea7 Kd1 Bf4 Rc8 Be5 d8B Be8 Bc7 Rb7 Bb8 Rd7 R8c5 Rf7 Rbc1 b1B Qg4+ Bf5 Rb1 Qc7 Bc1 Qca7 Bf4 Rg7 Rc2 Ba1 R2c3 Rb7 d7 Rb6 Qg1 Bg4 Bbd6 Bh5 Qg3 Rc6 d8N+ Kd7 Qg5 Kc8 Qg4+ Qd7 Rh8 Rc7 Bd5 Rf7 Nc6 Rb7 Bbc4 Rb2 Bb5 Re2 Qg5 Qdb7 Rh7 Re5 Rg7 Bd8 Qg4+ Rd7 Re7 Re3 Re4 Be7 Rec4 Re5 Rd4 Bd8 Qg2 Rh7 Rbb4 Qg7 Rbb3 Qg8 Qg4+ Rd7 Rbb4 Be7 Rb1 Qh7 Na7+
1RR5/pq2P1N1/2p3BR/k2Pr3/1b1Q2r1/1BPNN2R/1KnB1Nb1/1b4qb b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 e4 d5 exd5 e4 a4 Nc6 axb5 Ne5 fxe5 Qf6 Qh5 Qe7 Qd1 Qd8 b4 Kd7 d4 h5 Kd2 f5 Kc3 e3 g4 f4 g6 f3 g7 c6 g5 Kc7 b6+ Kb7 e6 h4 d6 f2 d7 h3 e7 h2 b5 e2 g6 e1Q+ Bd2 Rh3+ Kb2 Qe6 c3 Qc4 Bd3 f1B Na3 Qa4 Nc2 Rh8 Nh3 Be2 Ne3 Bf1 Nf2 Nf6 g8B Qc7 g7 Rh5 Bb3 Bg2 g8R Re5 d5 Bh6 Bg6 Qg4 Rb1 Bf4 d8N+ Kb8 b7 Bf5 Rc1 Bb1 Ne6+ Qc8 Ng7 Kc7 b8N Kb6 Qg1 Ka5 b6 Qb7 Nd7 Qd1 Rc8 Ng4 Nc5 Qe1 Ned1 Ne3 Ncd3 Nc2 Ne3 Bg3 Rc7 Rf8 Rc8 Rf4 Rd1 Rg4 Rc1 Qa6 b7 Qf1 b8R Qb7 Nh3 Qf2 Rf1 Qe1 Rf3 Qf2 Qd1 Qg1 Nhf2 Bf4 Nef5 Be3 Rh3 Bc5 Ne3 Bb4 Qf3 Qa8 Qe4 Qb7 Qd4 Qe1 Rf1 h1B Rg1 Bf3 Rgg3 Bfg2 Rh6 Qg1 Rgh3
B5k1/4nb1B/1bN2P1P/Qp1b2qr/1R1N2rP/p5pK/NB1R2R1/4RB1n b - - 0 1 illegal: No proof kernel
B3N3/n2B1Q1r/PrPRbp1n/P6p/q1p5/6KR/1NB1N1Rr/k1b1BR2 b - - 0 1 illegal: No proof kernel
b1n2N1r/NB1b1P1p/1R1N3P/1P4k1/p7/1B1Q2pB/2KbNnR1/Br3q1R b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 Kd2 Ke7 e4 a5 f4 g5 h4 d5 c4 g4 h5 d4 f6+ Ke6 f7 g3 f5+ Ke7 h6 a4 c6 d3 e6 Kf6 c5 Ne7 c7 Ng6 e5+ Kg5 e7 Qd7 e8B Qd5 c6 Qg2+ Ne2 Qe4 e6 Ra5 e7 Ne5 f6 Qf5 Na3 Rg8 Nc4 Qf2 Nd6 Ra7 Ra2 Nbd7 Bh3 Rh8 Bb2 Qf5 Ba1 Qf1 Qb1 Bb7 c8B Ba8 c7 Nb6 Bb7 Ng4 c8N Nf2 Qc2 Ra6 Na7 Nc8 Bed7 Rb6 e8R Rc6 Re6 Be7 Qb1 Rc1 f8N Bd8 Qc2 Rb1 f7 Ba5+ Qc3 Bb4 Rf6 Ba5 Bde6 Bb4 Bb3 Ba5 Ke3 d2 Qd3 d1B Rc2 Bd2+ Kd4 Be3+ Kc3 Bf4 Nc1 Bg4 Ne2 Bd7 Rd2 Be5+ Kc2 Bb2 Nc4 Bd4 Rb6 Bc3 Nd6 Ba5 Rd1 Bd2 Rc1 Qg2 Rcg1 Qf1 Rg2
3R2K1/nnPNp1P1/B1N4b/2QP2p1/1pqrk1R1/3rN3/4bR2/1NBBB1r1 b - - 0 1 illegal: No proof kernel
N3B3/p3BNP1/1QP1rk1n/1B2b2b/BK5p/Rn1pq1rP/Rn3N1N/6R1 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 Kd2 Ke7 Kc3 h5 e4 f5 g4 d5 e6 f4 b6 f3 g6 d4+ Kb4 f2 c4 h4 h3 Bg7 e5 Rh6 g5 Bf8 c6 Qd5 g7 Rh7 c5 Qg2 c7 Bd7 c8N+ Kd8 g6 Qf3 b7 Qd5 e7+ Ke8 Ra2 Ba4 Ba3 Bb5 Nd2 Qd7 Ne4 Bc4 Qb1 Bd5 Bb5 f1N Nf3 d3 Nh2 Bf7 Rg1 Rh6 Nb6 Ne3 Nf2 Nd1 c6 Qc7 Ba4 Nd7 b8R+ Qd8 Rb7 Rb8 Na8 Nb2 Rb6 Rc8 Ra6 Qb6+ Bb5 Nc5 Ra4 Nf6 g8B Ng4 g7 Re6 Ra6 Bh5 Ra4 Rg6 Bb3 Nh6 Ra5 Re6 Ba4 Kf7 e8N Nb3+ Nd6+ Ke7 Ra6 Qe3 Nf7 Re8 Ra5 Rg6 e6 Kf6+ e7 Rg3 Ra6 Rd8 Ra5 Rd6 e8B Be7 Qc1 Bd8 Qc5 Re6 Qb6 Bc7 Kc3 Kf5 Be7 Be5+ Kb4 Nd2 Bd1 Nb3 R5a3 Kg6 Bd6 Kf6 Bc5 Na1 Bda4 Nb3 Be7+
r1R1n3/r1pB2Np/Pq1N2R1/k5p1/1BB3KQ/1bbR1NB1/P3nN1P/5q2 b - - 0 1 legal: proof: d4 a5 g4 b5 b4 f5 bxa5 e5 gxf5 b4 dxe5 b3 cxb3 Ne7 b4 Ng8 b5 Bc5 Be3 Ba3 Bc1 Bf8 f4 d5 Kf2 Kd7 Kf3 g6 e4 d4 a6 d3 e6+ Kd6 f6 Kc5 f5 Kb4 e7 d2 e8B Ka5 b6 Bg7 b7 Nh6 f7 Qf6 f8B Kb6 e5 Qe6 f6 Ng4 f7 Bd7 Bc4 Qe7 e6 Bc3 Nh3 Qd8 e7 Nf2 Rg1 Ne4 Qa4 Ra7 Nf2 Bh3 Bd7 Be5 e8N Bc3 Nd6 Bf1 Kg4 Nc6 Bb2 Qa8 b8R+ Qb7 Rc8 Nd4 Ba3 Qc6 Bb4 Ne2 Bh6 d1Q f8N Bg2 Bf4 Qf1 Ne6 Rd8 Nd2 Nf6+ Kg5 Bh1 Ng7 Bd5 Rd1 Ne8 Nf3 Qc5 Kg4 g5 Rg3 Qd4 Rh3 Qe3 Rh6 Bf7 Rg6 Qc5 Bcb5 Bb3 Rd3 Qc6 Bg3 Qb7 Ba3 Qc6 Qd4+ Ka5 Bc4 Qb7 Kh5 Qc6 Qh4 Qb6 Kg4 Qg1 Rb8 Qf1 Ra8 Rb8 Bc5 Rbb7 Rc8 Ra8 Ba3 Rba7 Bb4+
n1K1RBk1/pP3B2/3p1B1P/1Rb5/bPpN2n1/1q1rN1q1/2r2R2/1NRQ2B1 b - - 0 1 illegal: No proof kernel
2n1Bkq1/1P1RN1Pp/2R2b2/N1Rq1B1p/2Qp3P/1rNq4/1BB5/KRnb4 b - - 0 1 illegal: Other
4NNRK/2bN1BP1/1B1rp2R/4P2n/2bpQ3/R1p5/P1N1q1Bq/k2rq2R b - - 0 1 illegal: No proof kernel
3N1NN1/2n3Bn/2PQ1R1p/1B2p3/1q1bPR2/2pr3P/nqk1RRK1/1N2b1B1 b - - 1 2 legal: proof: c4 b5 a4 g5 axb5 g4 b4 g3 b6 Nf6 b5 Nd5 b7 Nf4 b6 Nd5 fxg3 Nf6 g4 Ng8 g5 Bg7 Ra2 Bh6 Ra1 Bf8 d3 a5 Na3 c5 Rb1 d6 Ra1 a4 Nb1 Ra5 Nc3 Be6 Nb1 Rb5 cxb5 c4 Na3 c3 Nb1 Bc4 dxc4 Bh6 Ra2 Bg7 Ra1 Bf8 Kf2 Kd7 e4 Ke6 g4 Ke5 g6 f5 g7 f4 h3 d5 c5 d4 g5 h6 c6 d3 g6 Kd4 Rh2 d2 Kg2 a3 Ne2+ Kd3 Ra2 Nf6 g8R Qd6 g7 Na6 b8B Nh7 b7 Qb4 Be5 Nc7 b8N e6 b6 Bc5 b7 Bd4 Rc8 Rd8 g8N Qb2 Bg7 e5 Nd7 f3+ Kh1 f2 b8R Qb4 Nf8 Rd6 Rc2 a2 Kg2 a1B Ra8 Bb2 Nf4+ Ke3 Be2 f1N N4e6 Ng3 Bb5 Ne2 Nd8 Ba3 Rab8 Qb2 Ra8 Bac5 Ra2 Rd5 Rh1 Be7 Rf1 Bh4 Rf4 Be1 Rb8 Qb4 Ba3 Qb2 Bc5 Nc1 Ba7 Qb4 Rab2 Na2 Rb7 Na8 Rbf7 Nc7 R7f6 Rd7 Qh5 d1Q Rcf2 Qd3 Nd2 Qb1 Qf7 Qc2 Qe7 Qb1 Qd6 Qa1 Nc4+ Kd3 Rbe2 Qab2 Nd2+ Kc2 Qc5 Be3 Qe7 Rd3 Qd6 Bb6 Rf1 Ba5 Bg1 Bb6 R1f2 Bd4 Nb1+
KB4R1/N7/3pBq2/3nPqN1/Q3p1R1/2npPBN1/qbRP4/N1bBrk2 b - - 1 2 illegal: Other
K3Bn2/bP1R2Qk/rp4qP/BP1p2Bp/2q1R1bb/1N4N1/NB2N3/5n1R b - - 0 1 illegal: No possible last move, all moves rejected
2R3k1/BK2NpBr/1RNqB3/1b1pnR1P/P2Q2q1/3P2N1/1r3N1p/2rBn3 b - - 0 1 illegal: No possible last move
q1nq1nR1/B1k2pR1/1n6/2P1R2b/pN2B2B/3p1N1K/P3N2P/b2QB1Rr b - - 0 1 legal: proof: f4 c5 d4 a5 g4 b5 c4 h5 gxh5 e5 cxb5 c4 fxe5 Ra7 Kd2 Rc7 Ke1 Rc5 dxc5 Qe7 Bg5 Qf6 Bc1 Qd8 Kf2 g5 Kg2 d5 b4 Kd7 e4 a4 h6 g4 h7 d4 e6+ Kc7 e7 c3 e8R c2 b6+ Kb7 e5 d3 e6 g3 e7 Be6 b5 Bg7 Bd2 c1Q Be1 Qf4 Nf3 Na6 Nc3 Bd4 Rg1 Qfb8 Ne2 Nc7 Rc1 Bb3 Kh3 Ne6 Bg2 Qa8 Rf8 Kc8 e8R Ba1 b7+ Kc7 b8N Ne7 Nc6 Rg8 h8B Nc8 Bf6 Bd5 Bh1 g2 Nb4 Rg6 Rg8 Nf8 Re5 Bb7 Nfd4 Bf3 Bfh4 Bh5 Nf3 Rg4 Rc2 Rc4 Rb2 Rc1 b6+ Kd7 b7 Kc7 Rc2 Rb1 Rc4 Rc1 Rf1 Rb1 Rcg4 g1N+ Kg2 Nh3 Rg1 Rc1 R4g7 Nf4+ Kg3 Nd5 Kh3 Ndb6 b8B+ Kb7 Ba7 Kc7 Ng5 Rc4 Bf3 Rf4 Be4 Rf1 Rg4 Rg1 Nf3 Rh1 Rg1
2N1kB1R/1pqb3P/1rq3pR/1B6/1bNP3Q/1qR2p1B/1RB1nKP1/5Nn1 b - - 0 1 illegal: No proof kernel
7r/1b1kBN1N/2R2p2/Q1NnpP1n/B2b4/P3N1Rn/R3pBP1/RKn3q1 b - - 0 1 illegal: Other
R4Q2/nb6/q1Nr1p1P/RB1n1BR1/p2nK3/2RpN2n/3P1P2/BBrk2N1 b - - 1 2 legal: proof: g4 h5 gxh5 d5 b4 c5 e3 e6 a4 b5 axb5 d4 bxc5 d3 Bh3 Bd6 Bg2 Be5 Bf1 Bd4 exd4 Qb6 Ra5 Qc7 Ra1 Qd8 c4 Ke7 h4 Kf6 c6 Kf5 h6 Kf4 h7 g5 h5 a5 d5 g4 c5 e5 d6 e4 b6 g3 c7 e3 h6 g2 d7 Qg5 d8R Bh3 c8B Be6 b7 Qg6 c6 Ra6 c7 Rb6 Na3 Ne7 Rd5 Nec6 Bd7 Nd8 c8B Rb5 Bb2 Nbc6 b8N Nb4 Nc4 Ndc6 Rg5 Nd5 Be2 Na7 Nc6 Rd8 h8R Rc5 Bg4 Qf6 Bf5 a4 Ra3 Qg6 Ba1 Qf6 Be8 Rd6 Rc3 Bd7 Ba6 Bc8 Rhh5 Bb7 Bb5 Qe6 Qc1 f6 Qa3 Qc8 Bf7 Qa8 Kd1 e2+ Kc1 e1N Ne3 Nc2 Kb2 Nd4 Rf8 Qc8 Bg8 Qe6 Ra8 Rc4 Rb3 Rc1 Rc3 Rd8 Qf8 Rd6 Nh3+ Kf3 Bf7 Ke2 Ng1+ Ke1 Bg8 Nb4 Bf7 Qc8 Ba2 Nd5 Bb1 Qc7 Nh3 Qa5 Ng1 Qa6 Rc2 Nb6 Kc3 Nd5+ Kc4 Qa5 Rc3 Qa6 Ne2 g1N Kc5 Nh3 Ng1 Ne6+ Kc4 Nc5 Kd4 Nb3+ Ke4 Nd4 Qc8 Rd8 Qb8 Rd6 Qf8 Rd1 Bd7 Nhf4 Rg8 Nb6 Bc4 Nh3 Ra5 Nd5 Bb5 Rc1 Rg7 Nb3 Bf5 Nd4 Nc4 Kd1 Rg2 Rd8 Rg5 Rd6 Ne3+
4R1QK/n2b1RN1/p2p3p/1R1nN2N/q2BP3/P7/1P1bbp1B/2NrkB1R b - - 0 1 illegal: Other
n2nR3/pRBpb1pB/3PR3/P2qQ3/B4b2/1BKNP2k/1N2qp2/RN3r2 b - - 1 2 legal: proof: e4 c5 g4 h5 gxh5 f5 b4 b6 bxc5 f4 Ke2 Ba6+ Ke1 Be2 Bg2 e5 Bh3 b5 Ba3 Bd3 Nc3 Na6 Bc1 Rc8 Bf1 Rc6 Nce2 Rg6 Nc3 Rg3 Nb1 Re3+ Be2 Bc4 Kf1 Be6 Bc4 Bf5 exf5 e4 Kg2 Ra3 Bf1 e3 Kf3 e2+ Kg2 Re3 fxe3 Qc8 Kf2 Qd8 Ke1 Ke7 d4 Kf6 Kd2 Kg5 c4 Kh4 a4 b4 a5 b3 c6 b2 h6 f3 d5 f2 c7 Nb4 c8B Nf6 c5 Ng8 h7 Bd6 c6 Kg4 h4 Na6 h5 Bf8 f6 Nc5 f7 Qe7 h6 Qe4 c7 Qe8 Nf3 Qe4 Ba6 Nb3+ Kc3 e1B+ Nfd2+ Qf3 c8B Nd4 Bfd3 Nb3 Bac4 Nf6 Bb7 Kg3 Bc6 Nh5 Ba4 Bc5 f8N Ba3 Ne6 Qe2 Nf4 Nd4 Bcb3 Ra8 h8R Nf6 h7 Bd6 Re8 Ne6 h8R Nd8 Bh7 Rb8 Nd3 Bf4 Re6 Ne8 d6 Nc7 Rhe8 Na8 Rh5 Kg2 Rb5 Kh3 Rb4 Rb5 Qc2 Rg5 Rb7 Rg1 Qd1 Rf1 Qc2 Qf3 Qd1 Qd5 Qh5+ Kg3 Qe5 Kh3 Na3 b1Q Nc4 Qa2 Ba3 Bh2 Bc5 Bf4 Bb6 Qc2+ Kb4 Qd1 Ncb2 Qh5 Qc3 Qe2 Nb1 Bd2 Bc7 Bc1 Nc4 Bb2 Qe5 Bd4 Ncb2 Bb6 Qf6 Bd4 Qg5 Bf6 Qe5 Be7 Kc3
1qN5/NpR1bQ2/R1P2PK1/1rNp4/R2Nn3/pbq3p1/3PBBBB/rk6 b - - 0 1 illegal: No proof kernel
6k1/N7/q2p2KB/p1rP1R1P/2b2ppP/R1Q1Nrn1/B2BR1p1/1N1Rb2B b - - 0 1 illegal: Other
3R1r2/2R1R3/bp3B1k/1BBKRp1p/2N2Prn/Bp1b3P/1N1Q1qPp/3N4 b - - 0 2 illegal: Other
1N1rR2R/B1rB1bk1/1r1q1N1R/pN2n2q/PNbbK1R1/3P3p/1n5P/5BQ1 b - - 0 1 illegal: No possible last move, all moves rejected
B1Nk3q/1b3p1q/1P2n3/p2N2Q1/PR5B/r1RR2bK/n1N2PB1/bB1Rr1r1 b - - 0 1 legal: proof: d4 e5 dxe5 b5 c4 h5 cxb5 Nf6 g4 Ng8 gxh5 Bd6 Nd2 Bc5 Nb1 Bf8 h4 g5 a4 d5 b4 c5 e4 a5 h6 d4 h5 c4 h7 c3 h6 c2 b6 g4 b7 g3 b5 d3 e6 g2 e7 Bh3 e5 Qd4 Bg5 c1R Nc3 Rc2 Rc1 Kd7 e8B+ Kc7 e6 Bg4 e7 Rd2 Nge2 g1B Bh4 Qf6 Nd4 Bf5 Bd7 Ra2 e8B Be6 Qg4 Bg7 Bg2 d2+ Kf1 Kd8 Nd5 Ne7 Rc3 Ra3 Qg5 Bh2 Nc2 Rg8 h8R Na6 h7 Bg3 b8N Nf5 b6 Nd4 Rg1 Bh3 Bf5 Ra7 Bc6 Nb4 Ba8 Na2 Be4 Bc8 Nc6+ Ke8 Bf5 Ne6 Nce7 Bb7 Rh1 Kd8 Rh3 Bb8 Rhd3 Bg3 Kg1 Qh6 Bg6 Bd4 Kh1 Qf8 B6e4 Rg6 Rg8 Bf6 h8R Bfe5 Rg7 Qg8 Rh6 Qh8 Rgh7 Rg7 Rf6 Rg6 Rf4 Rg8 Bg6 Bf6 Re4 d1Q+ Re1 Qh5 Red1 Qh6 B6e4 Q6g7 Rh6 Bd4 Rf6 Qgh7 Rf4 Be3 Rg4 Bc1 Bf5 Bb2 Rb4 Ba1 Bgh3 Bc8 Kg2 Rd7 Be4 Bb7 Bhf5 Rc7 Kh3 Rc4 Bf3 Re4 Bg2 Re1 Bge4 Nd4 Qc1 Bh2 R3d2 Bc8 Nce3 Rgg1 Bg2 Ba6 Bb1 Bd6 Rdd3 Ne6 Nc2 Bb7 Qg5 Bg3 Nc8+
1BR1N3/qR1KQBp1/n1N2B2/2r1p1P1/2R1P2N/bbkPRb1n/3b1r2/2N2n2 b - - 0 1 illegal: No proof kernel
Q1K3n1/3B4/p4bp1/PN3N1q/BP1rbR1r/B3RRr1/N1nB2P1/Nn4rk b - - 0 1 illegal: No proof kernel
K1Q5/1N3Bnk/pp1N3r/2nRn1r1/RP1P3b/1qBR4/P1Br2R1/2N2bNn b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 d5 hxg5 Nc6 c4 Nb8 cxd5 Bh6 Bc4 Bg7 Bf1 Bf8 Ke2 Kf7 Kf3 Kg7 Ke4 e5 d4 c5 f4 h5 b4 b6 g4 c4 g6 h4 d6 c3 Kd5 h3 d7 c2 g5 e4 Bd2 c1N Qc2 e3 Nc3 e2 Nb5 e1R Bc3 h2 Bd3 Re8 Nd6 Qc7 d8N Rh6 f6+ Kh8 f7 Nb3 f5 Nc5 g7+ Kh7 f6+ Rg6 Rd1 Nbd7 N8b7 Qd8 Kc6 Be7 f8R Rb8 f7 Ngf6 g8R Nce4 Qc1 Nd5 Bc2 Rf6 Rd3 Nec5 Rg6 Ra8 Rgg8 Nf4 g6+ Kh6 g7 Kh7 Qa3 Re6 Qa6 Bh4 Qc4 R8e7 Re8 Nh5 f8N+ Kh6 Ng6 a6 Nf4 Kh7 Nfe2 Rh6 Nc1 Re2 Re5 Rd2 Rd5 Qe8 Kc7 Qe6 Kc6 Ne5+ Kc7 Ra7 Kb8 Ne4 Ra5 Nc5 Ra4 Qd5 Rd8 Bh3 Rd7 Bf1 g8B+ Kh8 Be6 Ng7 Bf7 Kh7 Rd8 Qf3 Qe6 Qd5 Qc8 Qb3 Rg8 Nf5 Rg2 Ng7 Nd8 Re7 N8b7 Ree6 Ka8 Reg6 Nf3 Rg5 Rhg1 Rgh5 Rg5 h1N R1g2 Nce6 Rf5 Nc5 Ng1 Rg5 Rg4 Nc6 Rd5 Ne5 Rg2
4B3/1R1prQ2/1RbbrPK1/1p1Ppr2/1P2NNB1/q2Nk1Bn/2B3R1/1nN1b3 b - - 0 1 illegal: No proof kernel
n5r1/3R1P1p/N2n1Rqk/R4p1B/3rr1Bb/2NQ3p/BB3PRP/bN3K1b b - - 0 1 illegal: Other
1bK2BB1/3r4/p1k2RNR/P1Np1qbr/1RQP3P/Rb1n1N1p/5Bn1/4q2B b - - 0 1 illegal: No proof kernel
KQ2b1R1/nr1q4/ppp5/P1BP1R1k/BBP1N2b/N2q1n1N/1b6/1R2BNr1 b - - 0 1 illegal: No proof kernel
RQ2NN2/rp6/3p2K1/b1BN1Bp1/2r2pR1/pPq5/R1BP1bP1/nk2n1NR b - - 0 3 illegal: No possible last move, all moves rejected
q1NqB2q/4R2N/3P4/kPQ2BK1/2Q2R2/4Pb2/1qbNNrB1/2nq2B1 b - - 0 1 legal: proof: b4 d5 c4 b5 cxd5 e5 f4 a5 fxe5 Bh3 a4 Bc5 g3 Bf8 axb5 a4 Na3 Ra6 Nb1 Ra5 bxa5 Bc8 Nc3 f5 Nh3 g5 Ng1 f4 Nb1 f3 Bh3 Nd7 Bf1 Bh6 h3 Ndf6 h4 g4 Na3 Nh5 Nb1 Nf4 gxf4 Bg5 hxg5 Ke7 Rh6 Kf7 Rh1 Ke8 Kf2 Kd7 Kg3 h5 Kh4 c5 d4 Kc7 d6+ Kb7 e6 a3 d5 c4 a6+ Kb6 d7 a2 d6 c3 a7 f2 a8N+ Ka5 e7 c2 e8B g3 f5 g2 f6 Qc7 d8Q Bd7 f7 Nf6 f8N Ne4 g6 Nd2 g7 Bc6 g8B Bf3 Nh7 Nb3 Be6 Rf8 Qg5 Qd8 Be3 c1Q Bf5 Qb2 Nd2 Nc1 Qc2 Rf7 Rb1 a1Q Nb6 Qh8 Nc8 Qab2 Qc4 Rf6 Nh3 g1Q Bg2 Qd1 Nf4 f1B Bg1 Rf8 e3 Bd3 Ne2 Bc2 Qe7 Rf7 Kg5 h4 Rh2 Rf6 Qe5 h3 Rh1 h2 Qec5 Qa1 Rb4 Qa3 Bf2 Qb2 Rf1 h1Q Bg1 Bh5 Rf4 Bg4 Bf1 Qa8 Bg2 Bf3 Re4 Rh6+ Re7 Rh2 Bh1 Rf2 Bg2 Qa3 Qe6 Qa2 Rf4 Qab2 Qec4
k1R1K1R1/B1q3Bp/b1n1B2P/2P3B1/2PNn3/1qQ3R1/2b1NR1Q/1q1r4 b - - 0 1 legal: proof: b4 b5 e4 d5 a4 g5 axb5 c5 bxc5 a5 d4 e5 dxe5 d4 f4 Na6 fxg5 Nb8 e6 Bd6 e5 Ra7 exd6 Rd7 exd7+ Kf8 Ke2 f5 Kd3 a4 Kc4 a3 Kd5 f4 Ke6 f3 g4 f2 h4 d3 c4 d2 b6 a2 b7 Qc7 h5 Nh6 g6 Rg8 g5 Rg7 Bb2 Qc6 Bh3 f1B Rh2 Qh1 Qe2 d1Q Na3 Nf7 h6 Ne5 Nc2 Qc1 Nd4 Nbc6 b8B Qe1 Rf2+ Rf7 g7+ Kg8 Qe3 Qd1 Nge2 Qb3 Qc3 Ba6 d8B Qh2 d7 Ng4 Rb1 Bg2 Rg1 Be4 Rg3 a1Q Bf6 Qb1 d8R+ Rf8 Kd7 Kf7 g8R Bc2 Rc8 Re8 Bc1 Re3 Bb2 Rd3 Bc1 Rd1 Bg7+ Kg6 Ke8 Nf6+ Kf8 Ne4 Be6 Qh4 Be3 Qf4+ Ke8 Qc7 Bf8+ Kh5 g6 Kh4 g7 Kh5 Bg5 Kg6 Bf4+ Kf6 Rh8 Rc1 g8Q Rd1 Qg4 Ne7 Rg8 Nc6 Bd2+ Ke5 Bf5 Kf6 Qh4+ Ke5 Qh2 Kf6 Bh3+ Ke5 Nf5+ Ke6 Bg5 Qcb7 Bg7 Qa7 Kf8 Kd7 Re8 Qc7 Kf7 Na7 Rc8 Kc6+ Ke8 Kb7 Nfd4 Nc6 Be6 Ka8 Ba7+
1B1Rb3/8/1Q2b1pQ/3n3q/R1kPQN1n/3rQ1q1/P1p1BP2/3N1NNK b - - 0 1 legal: proof: e4 b5 c4 a5 g4 h5 gxh5 f5 exf5 d5 cxd5 e6 b4 Bd6 bxa5 Ba3 a6 Rh6 Nxa3 Ra7 Nb1 Rb7 a7 Rb6 Bb2 Rc6 Ba3 Rc1 Bxc1 Rh8 a8N Ke7 h4 Kd6 f6 Kc5 h6 e5 h5 b4 h7 g6 d6 b3 h6 c6 d7 b2 f7 e4 f8N e3 Be2 Qb6 Kf1 Qb3 Kg2 Qd3 d8Q Bb7 Ne6+ Kc4 Qe1 Ba6 Qb6 c5 Nf4 Nc6 Nc7 Nd4 Nb5 Nf6 N5c3 Nf3 Rh4 Bb5 Nd1 Be8 Kh1 Nd5 Rg4 Rf8 h8Q Nh4 h7 Rf6 Qg7 Rd6 h8Q Rd7 Qhh6 Rd8 Nbc3 b1B Qe7 Bc2 Qeb7 Bb3 Ne4 Rd7 Ng3 Rd6 Bf3 e2 Nf1 Qf5 Bb2 Qh5 Be5 Rd8 Bb8 Rd7 Nc3 Rd6 Qc1 e1Q Q7c6 Qe3 Be2+ Kd4 Nd1 Qg3 Qb4+ c4 Qcb6+ Ke5 Rb1 c3 Qa4 Bc4 Rb4 Bb3 Rd4 c2 d3 Nf6 Qac6 Be6 Ra4 Nd5 Qce3+ Kf6 Qc4 Ke7 Qce4 Kd7 Qbd4 Kc6 Rg5 Kb5 Rf5 Rc6 Rf8 Rc3 Qf6 Rb3 d4+ Rd3 Qd8 Nb4 Qb6+ Kc4 Ra5 Nd5 Rh8 B8d7 Rd8 Be8 Ra4+
N1Q3k1/1p1P4/Nn1p4/BN1q2r1/1q2RPQq/2bB4/rPB1K1B1/5NR1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 a5 hxg5 a4 d4 a3 c4 d6 c5 Qd7 c6 Qd8 Be3 Bd7 cxd7+ Kf7 Nxa3 Nc6 Nb1 Ne5 dxe5 Nf6 exf6 Qc8 Ba7 Qd8 a4 h5 g4 c5 f4 e5 g6+ Kg8 g5 c4 a5 c3 f7+ Kg7 a6 h4 Nd2 h3 Ke2 c2 Ngf3 c1Q Ra4 h2 Bb6 e4 a7 e3 Nd4 Qa1 Nb5 Rh7 f6+ Kh8 Re4 Rh5 g7+ Kh7 g8B+ Kh8 g6 Rc5 Rg1 h1Q Bg2 Rh5 Bh7 Re5 Nf1 Bg7 f8N Qa3 f7 Qdh4 Ba5 Rg5 Ne6 Bc3 Nc5 Qb4 Na6 Kg7 Kd3 Kf8 Qg4 e2 Ke3 e1N Ke2 Rb8 a8N Nc2 Bb6 Kg7 Ba5 Rg8 f8Q+ Kh8 Kf3 Ne3 Qc8 Nc4 Ke2 Rd8 Kd3 Kg7 Ke2 Kf8 g7+ Kf7 Qc5 Nb6 g8B+ Kg7 Bb3 Rg8 N8c7 Ra8 Bc2 Kh8 Bf5 Kg8 Qc6 Qh5 Bd3 Q1h4 Qc5 Ra7 Na8 Qf7 Bg6 Qd5 Qc8+ Kg7 Bf7 Qh3 Nc5 Qa2 Bb3 Qh4 Ba4 Qd5 Bac2 Qbb3 Bb4 Ra2 Ba5 Qb4 Na6 Kh7 Qc6 Kg8 Qc8+
1r6/R2b1BBQ/B1PP1n2/N1B4n/4P1NK/1Nkb1rNb/2qQ2R1/1b4q1 b - - 0 1 legal: proof: f4 e5 fxe5 g5 d4 b5 a4 g4 axb5 g3 hxg3 Bc5 g4 Bd6 g5 Bf8 Bf4 c5 Bc1 d5 dxc5 d4 c6 d3 c3 Bb4 Ra6 Bc5 Ra1 Bd4 cxd4 Ba6 Be3 Bb7 Bc1 Bc8 Kf2 Ke7 Kg3 Ke6 b4 Kd5 e4+ Kc4 g6 h5 b6 f5 e6 a5 g7 a4 e7 f4+ Kh4 f3 g4 f2 d5 a3 b7 a2 d6 Ra5 b5 Ra8 g5 Kb4 e8N d2 b6 Ra4 Nf6 Ra3 g6 Ne7 g8B Bd7 g7 Qf8 Rh2 Rf3 Rg2 Nd5 Ng4 Nf4 Ba6 f1B Bf7 Bd3 Na3 Kc3 g8Q Bb1 Qe2 d1B Qh7 Bdc2 Nc4 Bd3 Na5 Qg7 Be3 Qe5 Bc1 Qc5 Ba3 Qc4 Bc5 Qb3 Qe3 Qc2 Qf2 Be8 Qe2 Nd7 b8N Nf6 b7 Rf8 Nd7 Rh8 Nf8 Bd7 Ne6 Rd8 Nd4 Rb8 Kg5 h4 Ndb3 h3 Kh4 h2 Qd2+ Kb2 Ne2 h1B Ng3 N4h5 Re2 Bg2 Rf2 Rd8 b8B Bh3 Rg2 Rg8 Bc7 Rc8 Bd8 Rb8 Qe2 Kc3 Be7 Kb2 Bf8 Kc3 Bg7 Qd2 Bb5 Bbc2 Nb7 Qd1 Rc1 a1Q Qd2+ Kb2 Bbc4 Qa2 Ra1 Qg1 Bb5 Qab1 Ra7 Qbc1 Qdh6 Kc3 Ba6 Bb1 N7a5 Qc2 Qd2+
1r2BQ1K/3NNR1Q/k1BP1P1r/n1R1n1Bb/nNB5/rN1P4/7n/3b1r2 b - - 0 1 illegal: No possible last move
1k5Q/rPrb4/nR4Bb/B4Qbr/3QP2r/RR2Qr1N/1r1RK2P/N7 b - - 0 1 legal: proof: c4 h5 d4 b5 e4 d5 cxd5 Kd7 g4 b4 gxh5 b3 d6 Ke6 d7 Qe8 axb3 Qd8 b4 Kd6 b5 Ba6 Qd2 Bb7 Qd1 Bc8 d5 Ke5 Nh3 Nc6 Ng1 Kf6 d6 e5 f3 Nce7 Nh3 Nd5 Ng1 Qe7 exd5 e4 Qd2 e3 Qd1 Qe4 fxe4 Bb7 Ra5 Ba6 Ra1 Bc8 d8R Ke5 b4 a5 h6 f5 b6 g5 d7 Kd6 b5 c5 b7 Kc7 b8R c4 h7 c3 Qe2 g4 Qd1 a4 Ra2 a3 Qa4 g3 Bd3 e2 Re8 f4 Bd2 g2 Qb3 f3 Nh3 g1B Rb6 c2 Rd8 Be3 Ba5 Nf6 Bc4 Bg5 Nd2 Bfh6 Qe3 Ra7 Nb3 Ne8 Na1 c1R+ Kf2 Rc3 Rb1 e1R Rb3 Rb1 Rd2 a2 Ra3 Rf8 h8Q Rb2 Ke1 f2+ Ke2 f1R Qhd4 Rb7 d6+ Kb8 Bf7 Rf3 Bg6 Rh8 Qe5 Rc7 Qf5 Rc5 Rb3 Nc7 Rg8 Be7 d8Q Na6 d7 Beg5 Qe8 Rh7 d8Q Re5 Qdd4 Rd5 Re6 Rbc7 b6 Rdc5 b7 Rb5 Nc2 a1R Rb6 Ra3 Na1 Rh8 Qee6 Re5 Rg7 Bd7 Qff6 Ref5 Qfe5 R5f4 Q6f5 Rh4 Rh7 Bf8 Rf7 R8h5 Rff6 Ra4 Ra3 Bg7 Rbb3 B7h6 Rfb6 Nc5 Bc3 Ra7 Ba5 Na6 Qh8+
1Q1n1N2/1k5R/1P4b1/1BK2n2/BBPRPpn1/1RQ1qrb1/R2r4/NB3b2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 h5 Ke3 a5 Kd4 d5 b4 Kd7 e4 Kc7 g4 f5 e6 f4 b6+ Kb7 e7 a4 e8B h4 b5 a3 g6 h3 g5 h2 g7 a2 g6 Qh4 Ne2 Ra5 c6+ Ka8 c7 Ne7 g8R Nbc6+ Kc5 d4 g7 d3 Qd2 Ba6 Nd4 Nd8 Ba3 Qf2 Bb4 Ra3 Qc3 Kb7 Nd2 Qe3 Nb3 d2 Rd1 Rh6 Na1 Rd6 Rh8 Rb3 g8B Nf5 Rh7 Be7 Bd3 Bh4 Bgc4 Ra3 Rhf1 h1N Rf2 Bg3 Bd7 Ka8 b7+ Ka7 Rfh2 Nf2 b8R Ng4 Be8 Rd7 Bb3 Rd6 Ba4 Rd7 Ra8+ Kb7 b6 Rd6 Beb5 Rb3 Rb1 d1B Rd2 Ra3 Rb3 Be2 Bd7 Bf1 Rd1 Bc4 Bdb5 Bf7 Ra5 Bg6 Ra8 Qf3 Ne6 Rd7 Nf8 Qe3+ Qd4 Rd6 c4 Rd7 Bb1 Rd6 Nc2 a1Q Ra6 Qb2 Na1 Qh2 Ra5 Qh6 Ra8 Qg7 Ra6 Qd7 Rdd3 Qc8 Ra5 Qb8 Rd2 Qe1 Qc3 Rd3 Ra8 Rf3 Rd4 Ra2 Be8 Re2 Bab5 Rg2 Ra2 Rd2 Ba4 Qf2 Beb5 Qe3 cxb8Q+
3Bk1RK/1qP5/r2bBQ2/1P4r1/1N2pNRP/r2R2q1/Q2n2qB/Bb1R4 b - - 0 1 legal: proof: b4 a5 g4 h5 gxh5 f5 e4 c5 exf5 b5 d4 Bb7 dxc5 Nc6 a4 Bc8 axb5 a4 Ne2 Ra7 Ng1 Na5 bxa5 Ra8 Kd2 d5 Kd3 e5 c4 g5 h4 a3 f4 e4+ Kd4 a2 Ke5 d4 a6 g4 f6 g3 a7 g2 c6 d3 h6 d2 f7+ Ke7 c7 Bd7 c8R Bc6 c5 Rb8 a8R Nf6 f5 Rg8 h7 Rh8 Nc3 Qd7 Qc2 d1R Bf4 Qd2 Bh2 Qf2 Bc4 Rd4 Nge2 g1Q Rd8 Rd2 Be6 Nh5 Rd1 a1Q Qa2 Qc1 Nf4 Qg4 Rhg1 Qgf3 Rd3 Rg8 h8B Bd5 c6 Rb6 c7 Ra6 Rg4 Q2g3 Rb8 Rg5 Rd8 Bh6 Rg8 Qfg2 f8B+ Ke8 Be7+ Bf8 Bd8 Rf2 Bhf6 Rf3 Bg7 Bb3 Nd5 Qc6 Nb4 Bc2 Bgf6 Bb1 Bh8 Rg7 f6 Qb7 Kf5 Re7 Kg6 Rg7+ Kh6 Rg5+ Kh7 Re3 Rd4 Rea3 R4d3 Q3h3 Bg7 Ng3 Kh8 Nf1 Bd5 Nd2 f7+ Kd7 Ba1 Bd6 f8Q Qhf3 Qf6 Qfg3 Rg7+ Ke8 Be6 Ra8 Rg6 R8a6 Rg8+
r3r2b/1B2B3/1P1R2rR/RbK1kr1p/3PP1B1/3rq3/Q1NN4/Q2RBn2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Ke3 Ke6 Kd4 h5 e4 d5 b4 f5 g4 a5 b6 f4 b5 f3 c6 a4 c3 a3 c7 f2 b7 a2 b6 Be7 g6 Nf6 g5 Ne8 g7 Qd6 g8Q+ Kd7 g6 Qc6 g7 Rh6 e6+ Kd6 Na3 Bf8 e7 Nf6 e8R Ng4 Ba6 f1R Nc2 Rg6 Nf3 Ne3 Nd2 Rf5 Rd8+ Bd7 c8B Nf1 Qf7 Qb5 g8R Qe2 Rh8 Qe1 Rh6 Nc6+ Kd3 d4 Kc4 d3 Ba3+ Ke5 b8B+ Bd6 Bab7 Qe3 Qg8 Bc7 Be7 Nd4 Kc5 Bb5 Rd6 Bd8 Qe1 Bc7 Rd1 a1R Qa2 Bd8 Rg1 Bc7 Rg5 Bd8 Bf8 Bf6 Be7 Bh8 Rg2 Rf2 Bg4 Rf5 Bc7 Re8 Bcd8 Bd7 Bh4 Bb5 Bde7 Rb1 Rg3 Rb4 Rg1 Ra4 Ra1 Ra6 Qeb1 Ra4 Be1 Raa8 Qbb2 Rgf6 Rd1 Rg6 Qba1 Rab8 Nb3 d2 Kb4 Be2 Bf3 Rf4 Rc1 d1R Rg4 Rf7 Rg5+ Kf4 Bg4 Ra8 Ra5 Bb5 Kc5 Rd3 Nd2 Ke5 Rd1 Rf5 cxd4+
3r1N2/nRN2qn1/PrB2Pnk/B4p1R/8/n1Rb3Q/R1P2Q1Q/Q1K2n2 b - - 0 1 illegal: No possible last move, all moves rejected
N6k/2P1Q1r1/1n1P2Q1/1b2B3/1b1K1NB1/2QBRPQ1/p2B1R2/qbb1bn2 b - - 0 1 legal: proof: b4 b5 e4 d5 h4 g5 hxg5 a5 c4 c5 cxd5 f5 exf5 c4 a4 Ra7 axb5 Rc7 Bd3 Nh6 Bf1 Rc5 bxc5 Ng8 Ke2 Kf7 Ke3 Kg7 g4 e5 d4 h5 c6 c3 f3 h4 f6+ Kh7 g6+ Kh6 g5+ Kh5 b6 e4 d6 h3 g7 Kg6 d7 Kh7 d5 c2 g6+ Kh6 f7 h2 b7 a4 Ra3 Qa5 d8Q Qb6+ Qd4 Be6 Ne2 Qa5 Nbc3 Bg4 Qe7 Rh7 Nf4 Nf6 g8Q Bf5 g7 Nbd7 b8B Nb6 Bd3 Nh5 Be5 Ng3 Rf1 h1B c7 Bg2 Rf2 Bf1 Bd2 c1B Qe8 Bb4 f8Q Qa8 d6 Qa5 Rb3 a3 Qfe7 Be2 Qdc4 Nf1+ Kd4 e3 Na4 a2 Qc3 Qa7 Bb1 Bb5 Bd3 e2 Ra3 e1B Qe8f7 Nd5+ Nb6 Qa4 Qfe8 Qd1 Na8 Nb6 Qe8f7 Be4 Qfe6+ Bg6 Qg4 Be4 Qg3 Bf5 Qge8 Bg6 g8B Rg7 Be6 Kh7 Bg4 Bf5 Be2 Bb1 Qg6+ Kh8 Qb2 Qa4 Re3 Qa3 Qb3 Qb2+ Qc3 Qa1 Bd3
3K1n1b/r2B1Q1r/R1q2P1k/3q1r2/1BR2P2/1QpB3N/1Pn1r3/1R1NB1R1 b - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 h5 exf5 Ra7 g4 Ra8 gxh5 Ba6 bxa6 Qd6 Qe2 Qd7 Qd1 Qd8 Ke2 Kf7 Kd3 g5 Ke4 Kg7 Ke5 c5 Ke6 c4 f4 g4 h4 g3 d4 a4 h6+ Kh7 a7 a3 f6 g2 h5 a2 d6 Qc8+ d7 Qb7 d8B Na6 d5 Rb8 a8B Rc8 d6 Qb5 d7 Qb8 Nh3 g1R Qb3 Qb5 Bc6 Ra8 Ba5 Nb4 d8R Ra7 Bd2 Bg7 Rd6 Nc2 Bdb4 Rg5 Nc3 Rf5 Rb1 a1Q Bd7 Qc6 Rg1 Qa2 Kf7 e5 Ke8 e4 Nd1 e3 Bd3 e2 Kd8 e1R Re6 Qg2 Ra6 Re2 Be1 c3 Bb4 Bf8 Rc6 Ne7 Rc4 Kg8 h7+ Kf7 h6 Kg6 Rh1 Qc6 Rg1+ Kh5 Ne3 Ng6 Nd1 Rg8 h8R Rg7 h7 Kh6 Rg8 Rge7 h8Q+ Rh7 Ba3 Bg7 Bb4 Re4 Rf8 Re2 Qg8 Bh8 Re8 Nf8 Qf7 Nd4 Re5 Nc2 Rb5 Qa5+ Rb6 Qad5 Ra6
4BR2/3Q1nR1/nPN1Np2/3B3q/K2b1p1r/P1Q1b1bP/Br3BR1/4Rk2 b - - 0 1 illegal: Other
q3Qk2/1Bb1pnbK/1R4r1/2b3Q1/PP1qRBN1/2NR4/P1B3Bp/1R1n4 b - - 0 1 illegal: No proof kernel
Qbnb4/Q2Rk3/5bBp/QPBPb1p1/6rR/BN2q1P1/1Br2NK1/6Q1 b - - 0 1 legal: proof: e4 b5 h4 d5 c4 g5 cxd5 f5 exf5 b4 h5 b3 axb3 Nc6 b4 Ne5 b5 Ng6 hxg6 Bb7 Ra3 Ba6 Ra1 Bc8 b4 e5 f4 c5 Kf2 a5 d4 h6 f6 a4 g7 e4 f5 a3 b6 c4 g3 e3+ Kg2 a2 f7+ Kd7 d6 c3 b7 e2 b8Q e1B b5 c2 f6 Ba5 d5 Qe7 Bd3 Ra7 Nh3 Bb7 Bg6 Bb6 Qg1 Bc8 Bb2 c1B Nd2 Rh7 Nf2 Qe3 Nb3 Ra4 Rh4 Be7 f8B Rg4 f7 Bf6 Qa7+ Kd8 d7 Ne7 g8Q Rg7 Rb1 a1B Qh8 Bd2 Rf1 Bc7 Rc1 Bda5 Rc6 Bb8 Rd6 Rg8 Ba3 Bae5 Bg7 Bb7 f8B Nc8 Rb6 Bc6 Bfc5 Ba8 Rd6 Ke7 Qh7 Bc6 Qa8 Re8 Bh8+ Kf8 d8Q Bd7 Qc7 Re6 Qca7 Bad8 Qg8+ Ke7 Qa5 Bf4 Q8a7 Re4 Bg7 Rc4 Bh8 Ba1 Bhb2 Rc2 Bc1 Bf6 Bcb2 B4e5 Qh8 Nb6 Qg8 Bdc7 Qc8 Bd8 Qca6 Nc8 Qa8 Bc6 Q6a7+ Bd7 Rxd7#
K4NNQ/1R2n2q/1B1q2nR/4PqPQ/5n2/1P2k3/1NRr1pBp/2R1N2b b - - 0 1 legal: proof: c4 b5 f4 a5 h4 g5 a4 f5 axb5 d5 cxd5 e5 g3 Bh6 fxe5 f4 g4 Ra6 Ra3 Rf6 Ra1 Rf5 gxf5 g4 Nf3 Ba6 Ng1 Bg5 hxg5 Bc8 Kf2 Kd7 d4 c5 e4 h5 f6 h4 d6 Ke6 d5+ Kd7 e6+ Ke8 b3 f3 Ke3 c4 Kd4 a4 Kc5 c3 d7+ Kf8 b6 g3 e5 g2 d6 f2 e7+ Kf7 e8N Kg6 f7 Kf5 f8N Ke4 b7 h3 Be3 c2 Nf3 g1N Na3 c1Q+ Nc4 a3 Ne1 a2 Qh5 Qc2 Rc1 Nc6 b8R a1Q Rb7 Nce7 Rh2 Ng6 Kc6 Qa6+ Bb6 Qe7 d8Q Qh7 d7 Ne2 Bg2+ Kf4 Qf6+ Qf5 d8R N8e7+ Kc7 Be6 Kb8 Bd5 Nb2 Bc6 Rd4+ Ke3 Rc2 Qad3 Ka8 Nef4 Rdc4+ Qd4 Rc5 Qd6 Rh1 Rg8 Qh8 h2 Nf6 Rg7 Ng8 Rf7 Rg1 Be4 Bh3 Bh1 Bg2 Nc8 Rf1 Rd7 Rg1 Nce7 Rc6+ Qc5 Re6 Rd2 Rf6 Nh4 Rh6 Nhg6 Ned3 Qd4 Rgc1 Qc5 Ne1 Qd4 Ba5 Qd6 Bb6+
nk4nn/NP3B2/Kb1B1Q1Q/3n4/1pB5/1NP1p1Br/2RP2N1/n2Rq1N1 b - - 0 1 illegal: No possible last move, all moves rejected
q4NR1/q2R1Bnq/rPP1RNpP/2nRB3/2n2B1Q/4Q1pB/2K1kr2/8 b - - 0 1 illegal: Other
rN3qR1/2Pr1Q2/N2Bbq1b/1bK1R1p1/8/4N1PP/k1NQ1R1p/1R3b1B b - - 0 1 legal: proof: d4 c5 dxc5 e5 a4 b5 axb5 Nc6 f4 Nd4 fxe5 Bb7 Bg5 Ba6 Bc1 Bc8 Nd2 h5 Rb1 h4 Ra1 Nf5 Nb1 Ng3 hxg3 h3 Bg5 h2 Qd3 Ne7 Bc1 Ng6 Qd6 Nf4 Qd1 Nh3 gxh3 Rh7 Ra2 Rh6 Ra1 Rh8 Kf2 Ke7 Ke3 Ke6 Kd4 g5 c4 a5 b4 d5 e4 f5 c6 a4 b6 f4 b7 f3 b8N f2 c5 a3 c7 a2 b5 Bh6 b6 Ra5 c6 Qe7 b7 Rg8 Na3 Rc5 Nf3 Qf6 Bg2 f1B Nd2 Bd3 Rb1 Ba6 Ndc4 Re8 Bf4 Bg7 Qd2 Qh6 Nc2 Bb5 Na6 Re7 b8N Rd7 N4e3 a1Q+ Rb2 Qh8 Rb1 Bh6 Bh1 Rc3 Ra2 Ra3+ Kc5 d4 Rab2 d3 Ra2 Ke7 e6 Qf8 Bd6+ Kf6 e7 Ke6 e5 Ra4 Qg2 d2 Rab2 d1B Qd2 Bde2 e8Q+ Qe7 Qh5 Bf1 Qf3 Qf8 Qh5 Bb7 c8R Ra3 c7 Bd5 Nab4 Ra8 N4a6 Qa4 Qf3 Qaf4 Qh5 Q8f6 Rg8 Qf8 Nd1 Q4f6 Qf7+ Kf5 e6 Bb3 Be7 Ke5 Nde3 Bd5 Ng2 Ke4 Bd6 Bb3 e7 Be6 Qf4+ Kd3 e8R Kc3 Nge3 Bb3 Ra2 B3c4 Re5 Be6 Rc1 Kb3 Qd4 Bfe2 Qd2 B2c4 Rf1 Be2 Rf2 Bf1 Ra1 Kb2 Re1 Ka2 Rb1
1R1n2N1/2p3bk/2PR1PQ1/QRQ2b1n/2n1R1b1/p4Q2/n3P2B/1K1n1BN1 b - - 0 1 legal: proof: d4 b5 f4 e5 dxe5 f5 a4 h5 axb5 g5 h4 g4 g3 Qg5 hxg5 a5 Nd2 Ra6 Nb1 Rc6 e6 Rc5 Bh3 Re5 fxe5 f4 Bg2 f3 Bf1 Rh6 Bd2 Rf6 Bc1 Rf4 gxf4 Ba6 Ra4 Bb7 Ra1 Bc8 Kd2 d5 b4 a4 c4 d4 Kc2 a3 g6 f2 g7 g3 b6 g2 b5 h4 e7 Kf7 e8R Kg6 e6 h3 b7 h2 e7 Bf5+ Qd3 Be4 c5 Kh6 c6 Bf3 f5+ Kh7 f6+ Be4 b6 Bf5 Nc3 Be4 Rb1 Bf5 Rb5 Na6 b8R Nh6 b7 Nf7 Kb1 Nb4 Nd5 Na2 Bf4 Nd8 Qe4 d3 Qf3 Bg4 Bg3 d2 g8Q+ Kh6 Qe6 d1N Qee3+ Kh7 Qc5 Bg7 Ne3 Bd7 Nf5 Be6 Nh6 Bg4 Nh3 g1N Ng8 Ne6 Red8 Bf5+ Rd3 Nd8 e8Q Bg4 Rd6 Bf5+ Qfe4 Nf3 Ng1 Ne5 Qd3 Nc4 Qee4 Kh8 Qef3 Bg4 Qd2 Kh7 Qa5 Ne6 Re8 Nd8 b8Q Bf5+ Re4 Bg4 Bh3 f1N Be5 Ng3 Bf1 Nh5 Bg3 Nf7 Qe8 Nd8 Qg6+ Kh8 Nh3 Bf5 Rg1 h1B Bh2 Bg4 Rg3 Bg2 Ng1 B2h3 Rb8 Bf5 Rg5 Bhg4 Qcb4 Bc8 Rgb5 Bcf5 Qf7 Kh7 Qc5 Ng3 Qe8 Nh5 Qg6+
B2N1bR1/N2Q2P1/k1r1PqBp/2n2PB1/1K1p1QB1/1pN3Rq/1r4N1/1r6 b - - 0 1 legal: proof: d4 c5 dxc5 f5 e4 g5 h4 e5 hxg5 a5 b4 b6 bxa5 Nc6 Ba3 Nd4 Bb2 Bb7 Bc1 f4 f3 Nf5 exf5 e4 Bb5 e3 Bf1 Be4 fxe4 Be7 Bc4 Bd6 Bf1 Bf8 a4 d5 g4 Kd7 c4 Kc7 a6 e2 Kd2 e1R Kc3 f3 a5 b5 c6 f2 a7 h6 g6 Qd6 g7 Qe7 e5 Rh7 a6 Kb6 c5+ Kc7 g5 d4+ Kb4 Qf6 g6 Re8 a8B Re7 a7 Qd6 Be2 f1Q Rh3 Re6 Nf3 Qg2 Nh4 Qg5 Nc3 Qde7 Ng2 Qd6 Qd2 Qf6 Qf4 Qd5 Rg3 Rd6 Bg4 Kc8 c7 Ne7 g8B Qff7 g7 Qf6 Bf7 Rc6 Bg6 Qf3 Ra5 Ng8 Ra3 Kd7 c8N Kc7 Ne7 Rh8 e6+ Qe5 Ra6 Nf6 Rb6 Qf1 Rb8 Ne4 Re8 Qh1 Rb8 Qh3 Rd8 Rb6 c6 Nc5 Re8 Rb7 Bd2 Kb6 c7 Rg8 c8N+ Ka6 Nc6 Qf6 Nd8 Rc7 Qd6+ Rc6 Bg5 Rh8 Qd7 Rb1+ Ka3 Be7 Rg8 b4+ Ka2 b3+ Ka3 Bf8 Kb4 Rc7 Baf3 Rb2 a8Q+ Ra7 Qe4 Rc7 Bf7 Rc6 Qf4 Rd6 Nb6 Be7 Nb7 Ka7 Rc8 Rd8 Bg6 Rg8 Rc7 Ra8 Rc8 Rb1 Rg8 Bf8 Qb5 Rb2 Nd8 Rb1 Qe8 Rb2 Bb7 Rc6 Qd7 Rb1 Nc4 Rb2 Na3 Kb6 Nab5 Ra1 Ba8 Ka6 Na7 Rc1 Bh4 Rcb1 Bg5
1Q5N/1QR5/1B1RQn1B/3PBnp1/2qP2pP/2rQ1N1q/1K2kp1r/1n5B b - - 0 1 illegal: Other
4R2K/1N1p4/2qP1B1N/Rn2Q1p1/1Q5P/N1QQb1pB/b2NPb2/2r2b1k b - - 0 1 illegal: Other
2RN3n/1P4kq/2bK1NPB/2RNP3/pQpRq1BQ/R2nb3/4pn1N/8 b - - 0 1 legal: proof: c4 d5 cxd5 Kd7 a4 g5 h4 b5 hxg5 a6 axb5 Nh6 e4 Ng8 d4 Bh6 d6 Ke6 d7 Bf8 d5+ Ke5 d6 Ke6 f4 a5 Be3 Ra6 Qh5 Rc6 Qf3 Rc5 Bc1 Rd5 exd5+ Kf5 Qd1 Kg6 Rh3 h5 Raa3 e5 Ra1 e4 Rh1 Rh6 Qe2 Kf5 Qc2 Re6 Qd1 Re5 fxe5 Kg6 Ke2 c5 Ke3 f5 b4 a4 g4 h4 b6 h3 b5 h2 b7 Qa5 d8Q Nd7 b8R Qb6 Nf3 Qa5 b6 Qe1+ Be2 Bg7 b7 Nb6 d7 Qa5 d6 Qb4 Qb3 Kh7 Ra3 Bh6 Nc3 Kg7 Nd5 Nc4+ Kf4 Qe1 Qb4 e3 Bd2 Qh4 Rc1 h1N Nh2 Nf2 Kf3 f4 g6 Qh5 Qh4 Nb2 d8N Nbd3 d7 Ne7 Rcc3 Qf5 g5 Qf7 Bc1 Qg8 Rc4 Qh7 Rd4 c4 Ra8 Nf5 Ra5 Nd6 Rc5 Nf7 Bd1 Nh8 Be2 Nd1 Ke4 f3 Bd2 f2 Bg4 e2 Kf5 f1Q+ Ke6 Qf7+ Kd6 Qf5 Be3 Kg8 g7 Qe4 Bd2 N1f2 Bf4 Qhf5 Bc1 Kh7 g8N Kg7 Ngf6 Qh7 g6 Be3 Nc6 Nh1 d8R Bd7 Rc8 Nhf2 Nd8 Bb5 Bd2 Bc6 Be1 Nh3 Bg3 Nhf2 Bf4 Nh3 Bg5 Nhf2 Bh6+
2Qb1rq1/N2BB3/1rQ5/P4RB1/rpPKQ3/kPr1p1R1/p5B1/1Q1N1r2 b - - 0 1 illegal: No proof kernel
R2q3Q/k1b2N1p/1R1BRQ2/pP1bp1K1/bp3B2/b3P3/PN6/bB1BR3 b - - 0 1 legal: proof: b4 g5 d4 e5 h4 a5 d5 Ra6 b5 Re6 dxe6 Na6 bxa6 b5 c4 f5 g3 g4 Bd2 f4 gxf4 b4 Na3 Nf6 Nb1 Ne4 Be3 Nc3 Bc1 Nb5 cxb5 Rg8 Kd2 Bh6 Ke1 Rg5 hxg5 Bf8 g6 c5 g7 d5 g8B g3 a7 g2 a8R d4 f5 c4 f4 d3 Kf2 c3 Kf3 d2 Kg4 c2 f6 Bd7 f7+ Ke7 f5 Kd6 f6 Kc7 Na3 Kb7 Nh3 g1B Kg5 Bd6 f8Q Ba7 e7 Bdc5 e8R Bg1 Bb3 Bc8 Nc4 Qe7 Nb2 Bgb6 Qh8 Qd6 f7 Qf8 Re6 Qd6 f8B Qc5 Bd6 Qd5 Bg2 Bd7 Be4 Bc6 Qf1 d1B Bf4 c1B e3 Bc7 Bb1 Bd4 Qf2 Bc3 Qh4 Qd2 Qh6 Qd3 Q6f6 Bd5 Rh2 Bd4 Rc2 Qd2 Rc6 Bc3 Kh6 Bc2 Ng5 Qd1 Nf7 Qd4 Bc4 Ba4 Be2 Qd2 Kg5 Bd4 Nc4 Ba3 Bd1 Bc3 Nb2 Qd4 Rg8 Ka7 Rf8 Qb6 Rc8 Qb8 Rb6 Qa8 Rg8 Qd8 Nc4 Bb7 Bbc2 Kb8 Bg4 Qf8 Re1 Ka7 Bb1 Ba1 Nb2 Bd5 Bd1 Qe7 Rc8 Qd8 Ra8+
2BrN3/B1Pp4/KprPp1B1/4pQr1/1b4R1/1NQ1q1B1/1pQ1k2P/Q5R1 b - - 0 1 illegal: Other
bBQBnr1R/2q4P/3qNQQ1/1BRn1r2/2P5/P2kb3/1qb1NnKQ/5B2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 h4 Kf7 c4 Kf6 f4 g5 Kf2 e5 a6 d5 a3 b5 h6 g4 h7 g3+ Kf3 d4 a7 b4 c6 g2 c7 d3 h5 b3 h6 b2 Ne2 g1N+ Kg2 e4 Nd4 d2 Ne6 e3 Qg4 d1B Rh5 e2 Nc3 e1Q Ne2 b1Q Rg5 Ba6 c8Q Nc6 Bd2 Bb3 Ba5 Qd6 Bd8+ Nce7 Qh5 Rb8 a8B Qb2 Bc6 Bc2 Bb5 Qa5 Rd1 Qac7 Rd5 Qa2 Rc5 Nh3 Rg3 Nf2 Rh3 Qb2 Qg4 Kf7 f6 Nd5 f5 Bb7 Qg5 Ba8 Rh1 Nge7 Rh5 Rg8 h8Q Bg7 Qg3 Rf8 Qh7 Rb7 Qh2 Ra7 Rh4 Ra5 Rh3 Ng6 Rh4 Ne5 Rh5 Nd7 Qg6+ Kg8 f7+ Kh8 h7 N7f6 Rg5 Ne8 f6 Bh6 Rg3 Rg8 f8B Be3 Bh6 Rf8 f7 Qcd7 Qf5 Q7e7 Bf4 Qec7 Ng5 Kg7 Qd3 Qce7 Ne6+ Kf6 Rg8 Qc7 Rh8 Qd6 Qd1 Kf5 Qb1 Ke4 Be5 Kd3 Bg3 Rg8 f8Q Qec7 Qg7 Rf8 Qa1 Qa2 Qaf6 Qb2 Qgg6+ Ne4 Bd7 Qcc6 Qgg7 Ndc3 Be1 Qf4 Bg3 Nf2+ Rd5+ Qd4 Bb8 Qc7 Bc6 Rb5 Re5 Qdd6 Qg4 Rd5 Bb5 Rc5+ Re4 Rf5 Qgg6 Nd5 Re5 Ne7+ Qb7 Qb1 Rc5 Nd5 Qa6 Qb2 Qc8
7r/Qr4P1/Qb2B1n1/1n1q2Bk/4q2r/b2bR3/B2P1BQP/2NQNqRK b - - 0 1 illegal: No proof kernel
1QrBq1b1/1BP1q3/rn3n1q/1P1R3r/1Q1NbB1k/1R6/1Q2KN1P/4B1bQ b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 f4 Kf7 b4 Kf6 c4 g5 c6 d5 h6 e5 b6 a5 h7 e4 c5 e3 c7 e2 c6 d4 b7 a4 b5 d3 Bd2 g4 Bg2 a3 Nh3 g3 Nc3 a2 Rb1 a1R Nf2 Bc5 Rb3 Na6 b8B Bd7 c8Q Be6 Bd6 Qb6 c7 Nb8 Bb7 Nd7 Qb8 g2 Rf1 g1Q Be7+ Kg7 f6+ Kg6 f5+ Kh5 f7 R1a6 f8Q Qg6 f6 Kh4 f7+ Ngf6 Bd8 Qd6 Qa1 Qe7 Bf4 Qh6 Qg7 Qe8 f8Q Bg8 Qfe7 Bd4 Qb4 Nb6 Qg1 Bc5 Qh1 Bd4 Qb2 Qe7 Nfd1 Bg1 Nf2 Qe8 Kd2 Qe7 Rd1 e1Q+ Kc1 Q1e5 Ne2 d2+ Kc2 Qe8 Kd3 Qd6+ Nd4 Qde7 Rc1 d1B Rc5 Bf3 Rd5 Be4+ Ke2 Be6 Qa7 Rc8 Qb8 Rg8 h8B Rg5 Bg7 Bg8 Bh8 Rh5 Bg7 Qh8 Bgh6 Qhh7 Bd2 Qhg7 Bhf4 Qh6 Be1
1B1Nkn2/P3bPRb/3n4/4B1NB/N4rNK/rBR2Pn1/qrQ1q2Q/q7 b - - 0 1 illegal: No possible last move, all moves rejected
3BbrRQ/1N4r1/r7/4P1B1/1PBRbbKQ/1N1Q3n/3BPbQk/b3q1n1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 d4 g5 h4 a5 b4 f5 d6+ Ke6 h6 c4 h5 f4 d7 Kf5 d5 c3 b6 c2 b7 a4 h7 g4+ Kg2 f3+ Kg3 a3 h6 f2 d6 a2 Na3 Qh4+ Kg2 g3 Kf3 g2 d8B Nf6 d7 Nc6 b8Q Bc5 Nb5 Ne4 Qb7 Rf8 h8Q Ra6 Bd2 c1B h7 Be3 Rb1 a1B Bg5 Bed4 d8B Bd7 Qb3 Be8 Qd3 Bc5 Rh3 Bb6 Rg3 Nd4+ Ke3 Ba7 Nf3 g1R Bg2 f1B Bh1 Bg2 Nd6+ Kg6 Qa8 Kh5 Nb7 Nf2 Rg4 Nh3 Ke4 Bcb2 Rd1 Bc1 Ke3 Qe1 Rg3 Ne6+ Nd4 Nef4 Rg4 Bgc6 Bd5 Rg3+ Ke4 Ng1 Nb3 Nfh3 Qf6 Rg2 Kf5 Bf2 Bc4 Bf3 Bgf4 Rg3 Rg8 Rg7 Bg5 Bfc6 Ke6 Kg4 h8Q Be3 Qfh6 Kg3 Qh5 Kh2 Qh4 Bf7+ Kf5 Bfe8+ Kg4 Bf2 Qg6 Bd5 Qd3 Be4 Bc3 Ra7 Qd7 Rgf7 Qac8 Bg6 Qcc6 Ra6 Rd3 Bce3 Bd2 Rg7 Qf5 Bh7 Rd4 Bf4 Qd3 Bhg6 Qcf3 Be4 Qg2+
1B5b/2P2Q2/bR1P2Q1/4rQBn/1N3P1q/rb1BRkN1/n1r1nB2/2QbK3 b - - 0 1 illegal: No proof kernel
2n1N1N1/5N1n/1Br3r1/3nRBP1/N2KPR2/bb2Pq2/1Q3Rqn/knR1Q3 b - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 e5 cxd5 b5 a4 e4 axb5 e3 fxe3 Nf6 e4 Ng8 Kf2 Kd7 Ke3 Kd6 b4 Ke5 g4 f5 d3 c5 b6 a5 b7 h5 b5 h4 b6 f4+ Kd2 Kd4 g6 h3 g7 f3 d6 a4 g5 f2 d7 a3 Kc2 c4 Rh2 c3 Qe1 a2 Nd2 Nc6 b8R Nce7 b7 Nf6 g8N Ra6 Nc4 Rh6 Nd6 Rg6 Ne8 Rc6 Kb3 Qa5 d8N c2 Nf7 Qd2 Ba3 Nh7 Rc1 a1N+ Kb2 Ke3 d4 Be6 d5 Kd4 d6 Nb3 d7 Nc8 d8R+ Bd6 Bg2 f1N e3+ Kd3 Bf3 Qg2 Bc5 Nbd2 Bb6 Bb3 Bg4 Nb1 Ne2 Qf3 Rf2 h2 Be6 h1Q Bf5 Qhg2 Nc3 Nh2 Na4 Kc4 Rd7 Bc5 Re7 Ba3+ Ka1 Kd3 Re5 Kc4 Ra8 Kd3 b8Q Kc4 Rd1 c1N Ra6 Ne2 Rc1+ Nec3 Raa5 Bb4 Kb2 Bd6 Rad5 Kb4 Rdd2 Nd5 Rf1 Bc4 Kc2 Ka3 Rdf2 Bb3+ Kd3 Bf8 Kd4 Bd6 Nb2 Ka2 Na4+ Ka1 Qb7 Qfg4 Rf4 Q4f3 Rf2 Be7 Qa6 Bb4 Qae2 Ba3 Qb2+
K1b2r2/b1B2q1Q/1R2N1bP/b2n1QrN/RP3b2/PQ1B4/2R2nQ1/1qR1k3 b - - 0 1 illegal: No possible last move
1QQBQ1K1/1Q1N4/1bn1R1P1/2Pn2R1/r2R1b2/1bPNq1R1/q5B1/b1k2br1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kf3 e5 Ke4 a5 Kd5 h5 f4 h4 b4 a4 g4 a3 f6 Kg6 b6 a2 b5 d6 b7 h3 f5+ Kf7 c3 e4 g6+ Ke8 b6 Kd7 g5 e3 f7 e2 f6 e1B g7 h2 Qa4+ Nc6 b8Q Bd2 b7 Qe8 Na3 Be7 f8R Bf4 f7 Bd8 Nf3 Qe3 Bg2 Bb6 Rd1 h1Q Rd4 Qh2 Ne1 Ra7 Qb3 Ra4 Nd3 Rh6 Qa8 Rg6 b8Q Ba6 Nc4 Bb5 Rb1 a1B Re8 Ba6 f8Q Bb5 Be4 Qa2 Re6 Ba6 Qbe8+ Kc7 Nce5 Bb5 Rf6 Nge7+ Ke6 d5 Kf7 Bc4 g8R Bb5 Rb4 d4 Re6 Nd5 Bg2 Bc4 Qad8+ Kb7 Rg7 Ka6 Kg8 Ka5 Qb8 Bb5 Nd7 Ba6 Nb2 d3 Rd4 d2 Nd3 d1B Qec8 Bc4 Qfe8 Be2 Qb2 Bb3 Bd2 Kb5 Rg1 Bf1 Bc1 Rb4 Bd2 Ka4 Qb1 Ka3 Be1 Ra4 Bh4 Bc2 Qb5 Bd1 Qba6 Kb3 Qab7 Kc2 Bh3 Kd2 Rg3 Bb3 Bg2 Rf6 g6 Rf5 Bd8 Rg5 Rf7 Rg4 Rf5 Kd1 Rg5 Kc2 Bf3 Kb1 Rh3 Rg1 Rhg3 Kc2 Bg2 Kd1 Nb2+ Kc1 Nd3+
3RRKQ1/2n2P2/1NQ1b3/2rqbN1Q/2nP1b2/Q2b2b1/kPBBr2R/3qR3 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 h5 g4 c5 f4 a5 b6 h4 b7 a4 g6 a3 g7 c4 g5 h3 g6 c3 d6 h2 f6 c2 d7 Kb3 Ke6 a2 Kf7 e5 f5 e4 Be2 e3 Bd2 Ne7 g8Q Ra5 g7 Rc5 Na3 Nbc6 Bd3 e2 Nc4 e1B Nb6 Nd5 b8Q Nc7 Qa8 Na5 Nf3 Nc4 Nh4 Bg3 Qh5 c1B Qc6 Bfd6 Rb1 a1Q Bc2+ Ka2 Qf8 Na8 g8Q Nc7 Kg7 Rh6 f7 Re6 f6 Re2 Nf5 Bde5 Qe7 Ba6 f8R Bc8 Re1 h1B Re8 Be4 Kf8 Bd3 f7 Bf2 Bb4 Bcf4 Bd2 B2g3 Qed6 Qg5 d8R Be6 Rbd1 Qb1 Rh1 Qa1 Rde1 Qb1 Rh2 Qd1 Qhh8 Qh5 Qhh7 Qf3 Qh5 Qd5 Qe7 Rb5 Qb4 Rc5 Qa3+
3N4/6N1/r1b3b1/2P1Pb2/3RnqRP/kq3RQ1/1RQb1BNr/Nr1B1nK1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 b4 f5 e4 a5 c4 g5 c6 d5 h6 g4 h3 d4 h7 f4 e6 Kd6 e7 f3 b6 d3 c7 a4 b7 d2 b5 Kc5 e8N Kb4 c5 a3 b6 a2 Be2 Na6 b8R Bf5 c8R Bh6 b7 Nf6 Ng7 Qb6 Na3 Nc7 Rd8 Ncd5 Qc2 d1B Be3 g3+ Kf1 f2 Nf3 Ra6 Ne1 Qd6 Rg1 Qf4 Ng2 Bg6 Bh5 Bg4 e5 Bc8 Bd1 Ne4 Rc1 a1Q h4 Qb2 Rd6 Rd8 h8Q Bcf5 Qg8 Qb3 Rb1 Rd7 Rf8 Rf7 b8N Rfa7 Ke2 f1B+ Ke1 Rf7 Rb2 Bb5 Bf2 Ne3 Nc6+ Ka4 Rd5 Nf1 Nd8 Bc6 Rd3 Rd7 Rf6 Rd4 Rf3 Bg5 Rd6 Rd2 Rd4+ Ka5 Nc4+ Kb4 Na5+ Ka3 Rh1 Qd3 Nb3 Qc3 Na1 Qb3 Ne3 g2 Rh2 g1R Rg2 Rh1 Rg4 Rh2 Ng2 Rd3 Qgc4 Rc3 Q2d3 Rc1 Qcc2 Bh6 Qe3 Qg5 Qf4 Rb1 Qg3 Qf4 Be3 Nd6 Kf2 Ne4+ Kg1 Qg5 Nf7 Qf6 Bf2 Bd2 Nd8 Qg5 Ne8 Qf4 Ng7
1Qn5/1RbbQ1n1/K2QRr2/1P1k3q/Q1N2qB1/1R2r1P1/bRPb1B2/5q1N b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Ke2 Kf7 Kd3 d5 b4 e5 f4 h5 g6+ Kf6 g7 a5 c6 h4 c7 h3 b6 a4 g3 a3 b7 d4 Kc4 e4 Kb5 d3 Qg4 h2 Be2 d2 Ra2 d1Q Be3 Nh6 g8R Q1d4 Nh3 Nd7 b8Q Nb6 Rg7 Bd6 Nf2 Rf8 Re1 h1B Rb2 a2 Na3 a1Q Nc4 Ra3 Bf3 Bg2 Nh1 Qe8+ Rd7 Rc3 Bf2 Qh5 Re7 Be6 c8R e3 Rb7 e2 Re8 Rd3 Reb1 e1B Rb3 Qe4 R1b2 Re3 Be2 Qc1 Ka6 Bd2 b5 Bd7 Re6+ Kf7 f6 Nc8 f5 Qf4 Qh4 Qf1 Bd1 Bd5 Bg4 Be7 Qd6 Bd8 Qb8 B8a5 Qd6 Bc7 Qe7+ Kg8 f7+ Kg7 f6+ Kg6 Bh3 Nf5 Bg4 Ng7 Qd6 Rh8 f8Q Rh6 Qd8 Kf7 Q8e7+ Kg6 Be2 Kf5 f7 Rg6 f8Q+ Rf6 Ne5 Ke4 Bg4 Na7 Qb8 Nc8 Rc3 Ba2 Rcb3 Qhg5 Nc4+ Qge5 Qa3 Kd5 Qh6 Qh5 Qa4 Ne8 Qhf8 Ng7 Qfd8 Bd6 Qb6 Bc7 Qbd6+
b3bN2/B3nN2/1P1q1bQB/n2r1k2/B3q3/P1nRP1R1/RK1Qrn2/4R2B b - - 0 1 illegal: No proof kernel
1K1b2r1/3P1P1B/R2B2RQ/q1R1NP2/6nk/1Q1b2nr/qn1BBR2/1Nbn4 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kd3 e5 Kc4 h5 g4 c5 f4 a5 b4 e4 d4 a4 g6+ Kf6 d6 e3 Kd5 h4 g7 e2 b6 e1N b5 c4 g5+ Kf7 f6 Kg6 f5+ Kf7 g6+ Ke8 b7 h3 b6 a3 Qb3 a2 Bd2 h2 Be2 c3 Nf3 c2 Rf1 h1N Ne5 c1B Rf2 Nh6 g8B Nc6 b8R Na5 b7 Ng4 g7 Ng3 Bh7 Nc2 g8R Nc4 Kc6 N2e3 d5 Nb2 Rg6 Qa5 d7+ Kd8 f7 Ke7 Bf3 Ned1 Be2 Qb4 Kc7 Qa5+ Rb6 Rg8 d6+ Kf6 d8Q+ Be7 Qf8 Bd7 Rc8 Bb5 b8B Bd8+ Kb7 Bd3 Rc5 Ra7+ Kc8 Re7 d7+ Re6 Be1 Kg5 Bd6 Rh6 Kb8 Rh3 Bd2+ Kh5 Ra6 Kh4 Na3 Nc4 Rb1 a1Q Qh6+ Nh5 Rb2 Qa2 Rc2 Ncb2 R2c3 Bc4 Rg3 Bd3 Rg1 Nge3 Rg6 Ng4 Qf8 Ng3 Nb1 Nh5 Qg7 Ng3 Qh6+
N1k2q2/Q2rP3/bb2r2B/4Qn2/5RbN/RK1bb2P/2PRR1B1/4bBBn b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 f5 Kc3 g5 b4 d5 e4 Kd7 h6 a5 b6 a4 c6+ Ke6 h7 g4 c7 Kd7 b5 f4 b7 g3 h3 g2 b6 f3 Nd2 f2 Nc4 a3 Qe1 d4+ Kb3 a2 Rh2 d3 Nf3 g1B Nh4 Bb4 Bh6 Nc6 b8B d2 b7 d1B Ba7 Bg4 b8Q Ba6 c8R Qe7 Re8 Nf6 Bd4 Qd8 Qa7+ Kc8 e6 Ne7 e5 Nf5 e7 Ne4 e6 Neg3 Qe5 Be1 Bde3 Rg8 h8R Rg6 Rhf8 Nh1 Bg2 f1B Bb6 Ng7 Rf4 Bd3 Bf1 Rb8 Rd2 Rb7 Bg2 Rd7 Bf1 Bh2 Bg1 Nf5 Qad4 Kb7 Nb6 Bhg3 Qa4 Bgf2 Na8 Kc8 Qad4 Be3 Qa7 Rd4 Rf8 Rd6 e8B Rd7 e7 Re6 Re2 Bb6 Rd1 a1B Rdd2 Bb2 Ra4 Ba1 Ra3 Bad4 Bf7 Be3 Bg8 Rc6 Bd5 Re6 Bdg2 Qe8 Rf6 Qf8 Rf7 Ng7 Rf3 Nf5 Rf4
rBbQn1k1/2R1RR2/RK4b1/B1B1b2r/PN1r2P1/2QB1P2/1Nn2bq1/3r4 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 Ke2 Kf7 Ke3 e5 g4 c5 d4 b5 a4 h5 a6 c4 f3 b4 a7 b3 g6+ Kg7 f6+ Kh6 f7 Kg7 d6 h4 d7 c3 d5 h3 d6 b2 Qe1 c2 Nd2 b1B Nc4 e4 Kd4 h2 Kc5 e3 Ne2 Be7 f8B+ Kf6 g7 Kf7 Nf4 e2 Nb2 Nf6 g8R Ne8 Nfd3 Bf6 Bf4 c1R+ Qc3 Nc6 Nb4 Rb8 a8R Bg6 Be5 Qe7 d8B e1B Ba5 Rb1 Bg3 Qe2 d7 Nd4 d8Q Rc1 Bgd6 Qf2 Be5 Nc2+ Kc6 Qg1 Ra6 Bg3 Bf4 Rh4 Be2 Bh8 Be5 Ra8 Bb8 Rf1 Be7 Bf2 Re1 Nd4+ Kb6 Rh5 Qc6 Qg2 Rf8+ Kg7 Rf7+ Kg8 Rg1 h1R Bed6 Rd5 Bd3 Rhh5 Ree7 Be5 Qcc7 Ra1 Rc1 Rb1 Rc4 Nc2+ Qc5 Re1 Qd4 Reh1 Rcc7 Rd1 Bc5 Rd7 Qc4 Rd4 Qc3
K1brR1q1/1NNR4/1Q1bnB1n/PR3Qb1/R1P1r1r1/3B2rP/3k4/Q1Q4b b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 Ke4 c4 d5 a4 g5 f4 e5 c6 b6 c7 g4 h6 g3 f6 g2 a6 d4 h3 d3 f7 d2 f5 Ke3 a5 e4 f6 Bb7 c8R Qd4 a7 Bd6 f8Q Na6 f7 Be7 h7 Qd8 Nf3 g1B Nc3 Bh2 Na4 Nc5 Rb8 Nh6 Nd4 Bg5 Bd3 Ne6 Bb2 Bc8 Kc6 b5 Qc1 b4 Rd1 b3 Qc5 Qg8 f8Q Bd6 Rb5 Rb8 Bc3 b2 a8R b1R Qb6 Rb3 Qf5 Rb7 Nc5 Rg7 Nb7 Rg6 Ra4 Rg7 Qc2 Ra3 Rg1 d1B Rf1 Be2 Rd1 Bf3 Rd2 Bh1 Qc1 Qf7 Rb8 Rd8 h8Q Qg8 Bb2 Bf6 Ba1 Rg4 Qg7 Bg5 Bb2 Nc5 Ne6 Rc3 Nc7 Ra3 Qa6 Ne6 Kb6 Rb3 Ka7 Ra3 Ka8 Rb3 Bb1 Ra3 Rd3+ Ke2 Rdd5 Rag3 Bf6 e3 Qc6 Bgf4 Qb6 Bg5 Qb2+ Ke1 Bd3 e2 Qa1+ Kd2 Qgg6 Bc5 Rd7 e1R Qf4+ Ree3 Qgf5 Bd6 Q4e5 Re8 Qf3 Ree4 Qef5 Rf8 Qff1 Re8 Nc5 Ba6 Rbd8 Bc8 Nb7 Re7 Rf8 Re8 Qfg1 Rd8 Re8 Bc5 Qgf1 Bd6 Qfc1+
2q1k3/BB1n2N1/1rb1KQ2/2N1B2b/2P1n3/P2n1rPr/p2Q2BQ/bR1Q3R b - - 0 1 illegal: No proof kernel
RB6/2RBPR2/P1rNQbn1/1K2kb2/1PB3Qp/rBb4r/3q4/1n3nRN b - - 0 1 illegal: No possible last move
5rQ1/2Pb4/knqbR1QP/N7/np1B4/3B1RrQ/n1N3RP/KRr2b1Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 g5 Kc3 e5 Kb2 d5 c4 Kd7 f4 Kc6 a4 b5 h6 Kb7 c6+ Ka7 f6 b4 c5 g4 f7 e4 c7 d4 f5 d3 f6 e3 a6 e2 c6 e1N a5 d2 Na3 g3 Qg4 d1B Ne2 g2 Rg1 Bd6 f8Q Be6 c8Q Bg3 f7 Nc2 c7 Bd6 Nd4 Nf6 Bd3 Ne3 Nac2 Rg8 Nb3 Nbd7 Rb1 Rg7 Qg6 Qe8 Qg8 Nb6 f8R Be2 Ka1 Nfd7 Rf3 Nc5 Bb2 Nd1 Bd4 Bd7 Re1 Bf1 Re6 Ba4 Qd7 g1R Qc8 Qc6 Qd7 Rb8 Qdc8 Ka8 a7 Nc3 Qd7 Kb7 a8R Rf8 Rae8 Rg3 a6+ Ka7 Na5 Na2 Re2 Bb5 Rg2 Nca4 Qh3 Rd7 Re6 Re7 Ref6 Re1 Re6 Rc1 Nb3 Ka8 a7 Kb7 Na5+ Ka6 Q8g7 Qc4 Qg8 Bd7 a8Q+ Kb5 Qae4 Ka6 Qe3 Qb5 Qg1 Qc4 Qh1 Qb5 Be4 Qc6 Bd3+
1b1N4/3Q1N2/k3b1R1/BR4qn/3q2Nr/P3QKPr/pP3N1b/2nrRB1R b - - 0 1 illegal: No proof kernel
1B1NR3/N1rB1Q1N/QrB3k1/KbB1bp2/5Pq1/P1nPr3/2NR4/b2qn3 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 d5 exd5 b5 g4 b4 gxh5 b3 cxb3 Bf5 b4 Be6 b5 Bc8 f4 c5 h4 g5 a6 e5 h6 f5 h5 Kf7 h7 e4 d6 e3 a7 e2 a3 c4 d7 g4 b6 c3 h6 c2 b7 g3 Ra2 g2 Nc3 Qc7 d8N+ Kg6 Nf3 g1R Nd4 Rg2 Ncb5 Nc6 b8B Bc5 d3 Qe5 Kd2 Nb4 Kc3 Qc7 Be3 c1Q+ Nc2 Bf8+ Bc5 Rg3 Bg2 Re3 Re1 Bd6 Bc6 Ne7 Bd7 Be5+ Kc4 Rf8 h8Q Rf7 h7 Ba6 Qe8 Ned5 Qf8 Nc3 h8N+ Kf6 Qd2 Qd1 Ng6 Qc6 Qg8 Qf3 Nf8 Qg4 Kb3 Rg7 Nh7+ Kg6 Qc4 Rf7 Rb2 Re7 Qc1 Re6 Qb1 Rb6 Qa2 Nc6 Qa4 Nd4+ Kb4 Nf3 Ka5 Nd5 Nd6 Bb5 Nc8 Nc3 Q4c4 Bc6 Qa6 Bb5 Bc7 Rb8 a8B Rb7 Bb8 Ra7 Bac6 Rc7 Rg1 e1B Na7 Bh4 Re1 Bhf6 Re2 Ne1 Rd2 Nf3 Rb4 Ne1 Re4 Ne2 Qe6 Ba1 Qb3 Nc3 Re8 Be5 Qf7+
QK3N2/3R1b1N/2q2Q1Q/rPQ2rb1/2q3nn/Bq1P1P1B/p1B5/B1Rn3k b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Kf3 c5 Ke4 h5 Ke5 a5 g4 c4 b4 a4 f6 Kg6 f3 e6 d6 c3 d7 a3 f7 h4 b6 a2 b5 c2 b7 h3 d3 h2 Na3 Qa5 d8Q Bd7 Nc4 Rh5 Bh3 Qb4 Ba3 c1Q Qd2 Qb3 Nb6 Ne7 Kd6 Be8 Nd7 Qcc4 Rc1 Nbc6 Kc7 e5 b8B Bh6 f8Q Nf5 Qc5 e4 Qf4 e3 Nf8+ Kf7 Qdd6 e2 g6+ Kg7 g5 e1Q Qh4 Ne5 Qdc6 Ra5 Qf6+ Kg8 g7 Qec3 Kb7 Ng4 Be5 Bf7 Kb8 Qcc2 Ba1 Q2c3 Qhf2 Nh4 Qd2 Qcc2 Nh7 Q2c3 Ne2 Qcc2 Rhg1 h1N Nf4 Nhf2 Ne6 Nd1 Nef8 Q2c3 Qa6 Qf6 Re1 Qg6 Re7 Qc6 Rd7 Be8 Rd4 Kf7 g8B+ Kg7 g6 Rf5 Qab6 Bg5 Rd7+ Kh6 g7 Kh5 Be6 Bf7 g8Q Ng6 Qb2 Kh4 Qf6 Kg3 Qgh8 Kh2 Qa6 Bh6 Qa8 Bg5 Qhg7 Kh1 Qh6 Nh4 Bd5 Qb2 Be6 Qcb4 Bb3 Qc4 Bc2 Qb1 Qfg7 Qbb3 Qgf6
1r1qr1b1/3Q3k/2Kn4/P1b2R2/1q2R1qp/BB1B1N1N/1B2P1P1/RRn1Q2n b - - 0 1 illegal: Other
b4B2/2N2kBq/3q1Rp1/1PB1nq1B/r2Pb1nQ/2P5/1N2K1R1/1r1Rb1RQ b - - 0 1 illegal: No proof kernel
6B1/1nRNQ2K/1kPpB2R/1B2P3/r1b1rN1b/1qn5/R3P2R/2QqBrn1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 f5 Ke3 h5 Kf4 a5 b4 h4 g4 d6 c4 Kd7 c6+ Kc7 g6 a4 g5 a3 c5 h3 g7 h2 g6 a2 Nc3 Nf6 Kg5 f4 g8B f3 g7 f2 Kg6 Rh4 Bd2 Rh3 Qc1 Ne8 Bg2 f1R Be1 Qh4 b6+ Kd8 c7+ Kd7 b5 Qf2 b7 Be7 b6 Nc6 b8Q Na5 b7 Qf3 Qa7 Kc6 b8R Ba6 c8R+ Nc7 Nd5 Bc4 Nb6 Bh4 Nd7 Nb7 Kh7 Qd5 Be6 Re3 g8B Re4 Nh3 Qd1 Kh8 Qb3 Kh7 Kb5 c6 Nd5 Nf4 Nc3 Bf3 Qc2 Rc7 Qb3 Qd4 Ra4 Qa7 Qb1 Ra8 Qb3 Rb1 a1N Bh5 Nc2 Bhf7 Nd4 Rb2 Bf6 Ra2 Nf3 Bg6 Ng1 Rd8 Re3 Bd3 Re4 Rf8 Bg5 Rf6 Bh4 Rh6 Nh3 Rg1 h1Q Rg2 Ng1 Rh2 Qd1 Qb8 Qf3 Qf8 Qe3 Nc5 Kb6 Qe7 Bb3 Ba6 Bc4 Bb5 Qed3 Rb2 Qb1 Ra2 Qbb3 Nd7+
k1b3QR/3N3Q/1pB2qb1/N1N3rP/1B2n1b1/1q5P/1PRrr1R1/N2nR2K b - - 0 1 illegal: No extended proof kernel
1b1r2B1/n1Q1nq2/Pnr1q1Nk/5B1B/2QR4/P2K1RNp/q3PNb1/2B4N b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 d4 h5 Kd2 b5 g4 f5 e6 c5 e7 Kf7 e8B+ Kg7 a6 c4 a3 f4 d6 f3 d7 c3+ Kd3 h4 d5 c2 g6 b4 g5 f2 d6 b3 Nh3 b2 Nc3 b1Q Ne4 Qbb6 Ng3 Qf6 d8N Be6 d7 Bd5 Nf7 Rh7 d8Q Bc5 Ne5 Bg2 Ng4 Qf7 Qc7 Rh6 Ra2 Kh8 g7+ Kh7 Qe1 Bb4 Qec3 Qbe6 Q3c4 Ne7 g8N Nbc6 g6+ Kg7 Rb2 Na7 Rb3 Bd6 Rg1 Rd8 Rb4 Kh8 g7+ Kh7 Rb3 Bh1 Bg2 f1N Nhf2 Nd2 Rd1 h3 Be4+ Rg6 Bf5 Bg2 Nfh1 Be5+ Qd4 Nc4 Ngf2 Nb6 Rd2 Bd6 Qdc4 Bf4+ Kc3 Be5+ Rd4 Bd6 Kd3 Bf4 Nf6+ Kh6 Nh7 Rf6 g8B Rg6 Bb2 c1Q Nf8 Qa1 Bc1 Rf6 Ng6 Qa2 Bd7 Qe5 Bg4 Rc6 Bdf5 Qef6 Bh5 Q6e6 Rb5 Qd6 Re5 Qde6 Re3 Bd6 Qd7 Bb8 Qc8 Rf8 Qc7 Rd8 Rf3+
Qq3r1r/1Q3b1P/1N4Q1/bp2knn1/N1R3Q1/NBR5/P1K2Pbr/q1N3B1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 c4 Kf6 h4 e5 h6 d5 h7 b5 h5 g5 c6 g4 c5 e4 h6 d4 a6 d3 c7 g3 a7 g2 c6 Ba6 c8N Qe8 c7 Nc6 Rh4 Qe5 Na3 Qg3 Nb6 Bb7 c8N Bc5 Ne2 g1Q Na4 Qh1 Ncb6 Ke5 f6 Nd8 f7 Ne6 f8Q Ng5 Qe8+ Ne7 Qg6 Raf8 a8Q e3+ Kc3 d2 Kc2 Bd5 Rc4 Bg2 Qb7 Bb4 Rb1 Nf5 Rb3 Ba5 Rbc3 Qf4 Bb2 Qg3 Nc1 e2 Ba1 e1R Qg4 Re3 Be2 Qf4 Bd1 Rh3 Bb2 Rh2 Ba1 Qd4 Bb2 Qd8 Ba1 Qb8 Bb2 Rhg8 h8Q+ Rg7 Qg8 Rh7 Ba1 Rh8 h7 Rf6 Qgc8 Rff8 Qa8 Qe1 Qcb7 Qg1 Kb1 Qf1 Bb3 d1B Bb2 Bdf3 Kc2 Bd5 Nb1 Rf6 Ba3 Bf7 Bd6+ Ke6 Na3 Qe1 Nd3 Qa1 Nc1 Bg8 Nc8 Rh3 Q6h5 Rf8 Bh2 Bf7 Bg1 Ke5 Ncb6 Rh2 Qg6
5kBb/B5np/q3q3/1QRNB3/P2RN2r/3Bn1P1/q1rn1KP1/R2b1RQ1 b - - 0 1 legal: proof: c4 a5 b4 d5 cxd5 f5 bxa5 g5 e4 g4 exf5 g3 hxg3 Qd7 Ke2 Qd6 Ke1 Qd8 f4 b5 d4 e5 a4 c5 a6 b4 f6 e4 f7+ Ke7 f5 e3 a7 e2 Kf2 c4 Nd2 c3 Rh5 b3 Nh3 b2 Ne4 b1N Bb2 c2 Nf4 Bg7 d6+ Kf8 d5 c1Q d7 Qf6 d8B Na6 d6 Nd2 d7 Nh6 Bb6 Rb8 a8B Qc4 Ba7 Rb4 Be5 Nc5 Bd5 Qa2 Be6 Rg8 Nd5 Bh8 Qb1 Rc4 Qb5 Rc2 Rg5 Bb7 Rh5 Bc6 d8R+ Be8 Rd7 Rg4 Rd8 Rh4 Rd7 Kg7 f8R+ Bf7 Rdd8 Bg6 Bg8 Ng4+ Ke1 Ne3 Kf2 Ne6 Rg5 Kh6 Rd7 Ng7 Rd6 Qe7 f6 Bh5 f7+ Qf6+ Rf5 Bf3 Rc8 Bg4 f8Q Bh5 Rdd8 Qa6 Qfc5 Bf3 Qd4 Bg4 Rc5 e1Q+ Kg1 Qe2 Rd7 Qec4 Bd3 Bd1 Rf1 Qe6 Kf2 Qa6 Ndf6 Qce6 Rd8 Ne8 Rd6 Kg7 Nd5+ Kf8 Ke1+ Nf5 Qg1 Ng7 Kf2 Ne3 Ndf6 Qh3 Rd4 Qhe6 Nd5
q5b1/br1QRNPn/2b1NkB1/P2P2BK/3r4/4nNN1/2Rp2RR/1Q1q2q1 b - - 0 1 illegal: No proof kernel
2BR1B2/1bRQP3/1NPQNbB1/4Qqr1/P1Knnrq1/Q3k1b1/7p/B2r4 b - - 0 1 illegal: No proof kernel
2qq4/K3PbbN/npr1N3/B2P3n/1r1b1Q1k/2R1PRR1/BR1Q2Q1/2rQ4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Ke7 Ke3 g5 Kd4 f5 Kc5 f4 a4 f3 d4 f2 h4 c6 e6 Kf6+ e7 g4 e3 g3 h6 g2 h7 Nh6 h5 Kg5 a6 Bd7 d6 Bg4 d7 Ra7 a5 Bf5 Rh2 Qc7 d8Q Ra8 a7 Bc8 a6 Nf7 h6 Be6 Bd2 Nd6 Ba5 Qc8 Kb6 c5 Na3 c4 Rc1 c3 Nh3+ Kh4 Bc4 f1R Nc2 g1Q Ng5+ Bh3 Ba2 Rg8 h8Q Qg2 h7 Qd2 Qf6 Ne4 h8R+ Bh6 Qdd6 Rg6 Rg8 Ng3 Qf8 Re6 Nh7 Nh5 Rg3 Bg7 Qf5 Rg6 Qf4+ Rg4 Rf2 Bg2 Qd7 Bd5 Rff3 Bf7 Rb1 Rh1 Rb2 Qd3 Qd2 Rc1 Qdd6 Qdc4 Qd7 Qd5 Qa4 Qdd7 d5 Qde8 Nd4 c2 Ne6 Qf8 Qad4 Qg8 Qg2 Qh8 Qdd2 Qhd8+ Kb5 b6 Qd1 Nc6 Qdd2 Rb8 a8R Nb4 a7 Na6 Qd1 Rb7 Rb8 Rc7 a8Q Rc3 Rb7 Rc6 Rc7 Rb1 Qb8 c1B Qfd4 Bd2 Qd3 Bdc3 Q3d2 Rcc4 Rc5 Rc1 Qf4 Bcd4 Rc7 Ra4 Rc3 Rc4 Qe5 Rg6 Qc7 Rb4+ Kc6 Qcd7+ Kb7 Q7c8+ Ka7 Rh6 Nef8 Rd6 Ne6 Rc6 Qf4+
2qR3R/r3p2Q/Nk6/1B3N2/P2n2K1/2Q1PBBn/1RqPr3/bb1q1rRB b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 d5 b4 d4 bxa5 d3 cxd3 Bh3 d4 Bf5 d5 Bc8 Kf2 Kd7 Kg3 f5 h4 c5 a4 Kc7 d6+ Kc6 a6 b5 g6 b4 a7 b3 h6 b2 e3 c4 h5 c3 g7 c2 h7 Be6 d7 Kb7 h6 Bb3 Ne2 f4+ Kg4 f3 Na3 b1Q Ng3 f2 Rg1 Ba2 Nf5 Bd5 Ra2 Bb3 Nb5 Kb6 Ba3 c1Q Qc2 Qc8 d8R Nc6 Rb2 Ba2 Bd6 Nd4 Qc3 Qbc2 Bg3 Bb1 Be2 f1R Bf3 Q1d1 Nc7+ Nb3 Na6 Nf6+ Kh3 Nd5 g8B Nf4+ Kg4 Nh3 Bc4 Bg7 Bb5 Rf8 h8Q Nd4 h7 Re1 Qg8 Re2 h8R Be5 Qh7 Bf6 Kh5 Bg7 Nd6 Rf4 Nf5 Be5 Bh1 Rf1 Kg4 Qcc1 Ra2 Nc6 Qc4 Ba1 Qc3 Qcc2 Rb2 Nd4 Bf3 Rb8 Bh1 Rb7 a8B Ra7 Baf3
n5r1/q1bPR3/kB2nK2/3P1Q1b/rN1B4/1NQ1pRqr/R1P2BR1/4nB2 b - - 0 1 illegal: No proof kernel
3B2q1/nrP3bk/1rr1Q2B/b3Q2R/P2QP1B1/KR2p3/3nqNbN/1Q4B1 b - - 0 1 illegal: No proof kernel
1r1n4/kP1qRrN1/bQ1bQ1rP/6n1/3pB3/1N2R1Qq/1K3B1P/1BnQ1B2 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 d5 Kc3 Kd7 f4 Kc7 b4 Kb7 f6 a5 c6+ Ka7 h6 g5 c7 e5 f5 d4+ Kb2 e4 c4 g4 f7 g3 c5 g2 c6 e3 f6 a4 Ra3 e2 b6+ Ka6 b5+ Ka5 b7 Kb6 Nd2 e1R Nb3 Re6 Nh3 g1N Nf4 Bg7 f8Q Re8 f7 Qd6 Qe7 Nf6 f8Q Ne4 Be3 Rg8 Qe6 Ka7 Qff6 Bf8 Nh5 Ne2 Ng7 Nc1 Bf2 Qd7 Qfe5 Re7 Qg3 Rf7 Rg1 Ng5 Rg2 Qd8 Rg1 Bd7 c8B Bd6 c7 Nc6 Rh1 Be8 Bd7 Qe7 c8B Nd8 Bc6 Rb8 Be4 Bc6 Bb1 Be4 Bd7 Bd3 Bc6 Qd7 Be4 Be2 Na5 Bc4 Re3 Be2 Nb3 a3+ Ka1 a2 b6+ Ka6 Kb2 a1Q+ Kc2 Qa5 Kb2 Qf5 Rg1 Qh3 Rh1 Ra8 b8Q Bd3 Qc7 Rb8 b7 Bc4 Be2 Bd3 Re1 Ka7 Bf1 Ba6 Qa5 Rgf8 Qb5 Rf6 Qb4 R8f7 R1e2 Rg6 Qb5 Rc8 Qb6+ Kb8 Bf3 Bb5 Qe8 Re7 Re5 Rf7 Bfe4 Bc4 Re3 Ba6 Qc7+ Ka7 Qg8 Rb8 Re7 Rf5 Qe6 Rf7 Qb6+
2q1QRb1/RPPr2k1/4n2R/N1rPp1b1/1nbR1BK1/qBN2n2/2B5/4Q1B1 b - - 0 1 illegal: No proof kernel
r2r1B1n/B7/rRB3kP/1Qp2Q2/P2b3n/1qPQ1bBQ/1r4N1/1rN2R1K b - - 0 1 illegal: No possible last move, all moves rejected
NnB1Qb1B/1qQ1b2b/3PK3/QR1P2r1/2b1Pb2/1p2R2Q/1Bn3Nr/3kB3 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 Kf2 Kd7 Ke3 g5 Ke4 c5 Kf5 b5 d4 g4 h4 f6 a4 c4 e4 b4 a6 b3 h6 c3 h7 g3 h5 c2 h6 g2 d6 Kc6+ e6 Ra7 d5+ Kc5 a5 Kb4 Bb2 c1B Na3 Qe7 Qh5 Bg5 Nc4 Bd7 Nf3 g1B Bh3 Ba4 Nh4 Be8 Nb6 B1e3 Ng2 Qg7 e7 Bgf4 Rhe1 Bg6+ Ke6 f5 e8Q Qb7 Na8 Nf6 Qd8 Be7 Qc7 Ng4 Rac1 Bd2 Rc5 Ne3 Qh4 Rg8 h8B Nc2 Re3 Bh7 Qh5 Rg5 Rb5+ Ka4 Bbc3 Ka3 Qf3 Bc1 Be1 Ka2 Qg3 Kb1 Bb2 Bd2 Qf3 Bc3 Bg4 Bg7 Qh3 Bgf8 Bg3 Be5 Be1 f4 Bf5 f3 Bg4 Bg6 h7 f2 h8B f1B Bf5 Bf4 Bg4 Qc6 Bf5 Rb7 a7 Bh7 a6 Be2 Nb6 Bc4 a8Q Ra7 Bg4 Qb7 Bf5 Nd7 Qe8 Ra8 a7 Nb8 Ba1 Kc1 Bac3 Nd7 Bb2+ Kd1 Bg4+ Be2 Bf5 Rd8 a8Q Bc4 Qa3 Ra8 Qb4 Ra2 Qa5 Nb8 Na8 Na3 Bbg7 Re2 Bb2 Nc2 Kf7 Rd2 Bc8 Rf2 Ke6 Re2 Nh4 Rh2 Ng2
b1bq4/k1N1Qr1R/B2nRnrb/8/2P2P1n/1K1p2P1/R2BQ2R/b4NBB b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 d5 Kc3 Kd7 f4 Kc7 b4 Kb7 b6 e5 f6 h5 b5 a5 f7 e4 g3 d4+ Kb3 e3 c4 d3 g6 e2 g7 e1B Nd2 h4 Ngf3 h3 Nd4 h2 Ra2 Rh6 Bg2+ Nc6 Nf1 Bh3 Qe2 Rh7 Bd2 Ra6 Ne6 Nf6 g8R Bh6 f8Q Rf7 Nc7 Bc8 Rg6 Kb8 b7 Ne7 c6 Ka7 b8R Nf5 Rb6 Nd6 Rg7 Bf2 Qfe8 Bd4 Rh7 Ba1 Q8e7 a4+ Kb4 a3 Kb3 Ra5 Ra6+ Kb8 b6 Rg5 b7 Rg6 Rg1 h1B Bf3 Bd4 Rg2 Ba1 Rh2 Bg2 Ra5 Bh1 Re5 Ka7 Re6 Bg2 Rb2 a2 b8B+ Kb6 Nb5 Ka6 c7 Kb6 Ba7+ Ka6 Bh5 Ba8 Bg1 Kb7 Bf3+ Ka6 Nd4 Ka7 Rc2 Bb2 Bh1 a1N+ Kb4 Nb3 Nb5+ Ka6 Ka4 Ba1 Ra2 Nd4 Ka3 Nf3 Kb4+ Kb7 Kb3 Bd7 c8B+ Kb8 Ka4 Nh4 Ba6 Bc8 Nc7 Bd7+ Kb3 Bc8 Re3 Ka7 Re6+
1b2bq1k/5RB1/2nQ1B1n/r1PBbQ1P/Bp3N1K/1r2N3/R2nbP2/3R2R1 b - - 0 1 illegal: No possible last move
k1n2RQ1/n3QN2/B2Rn2K/1rPbP3/1B2Q2R/q3p1QR/P2br2N/3r1n2 b - - 0 1 illegal: No proof kernel
bQ1B4/r1RR2N1/1KP1rr2/2N3Q1/3N4/nN4pq/rP2bPkb/B1n1B2B b - - 0 1 illegal: Other
1r5R/2kr1NPN/1n1bQP1P/1bQ1BN2/2nb2B1/2N1p3/1q1B2B1/2brRK2 b - - 0 1 illegal: No proof kernel
Br1b2Q1/1R1B1pn1/1NNQ3N/B4nRb/2NPbK2/2q4b/P1Pr3n/kB6 b - - 0 1 illegal: Other
Q1n1NnQQ/4P2p/1P1nR2P/1B2R1r1/qr4bk/n1b1Q3/1BrN3R/5KR1 b - - 0 1 legal: proof: d4 b5 f4 c5 a4 g5 fxg5 e5 axb5 c4 dxe5 c3 bxc3 Bg7 c4 Bh6 c5 Bf8 c4 Ke7 g4 f5 e4 a5 h4 d5 c6 d4 h5 f4 c5 a4 b6 d3 g6 f3 h6 a3 e6 Kf6 e5+ Ke7 g7 a2 c7 Nc6 g5 Bd7 c8R Na7 g6 Nf6 g8Q Qe8 c6 Bg7 c7 d2+ Kf2 Rb8 Qb3 d1R Nh3 Rd4 Qe3 Rb4 Bb2 Rb7 Rd8 Nc8 Nd2 Ra7 Ng5 Ra5 Rb1 a1N Nge4 Nc2 Nd6 Na3 Rh2 Rd5 Kg1 f2+ Kg2 Rc5 Bb5 Rc2 Rg1 f1N Kf2 Ng3 Kg2 Na7 c8Q Nge4 Qa8 Bc8 Kf1 Nd7 Qc5 Nf8 Qe3 Bf6 g7 Qd7 Ne8 Nd6 Bc4 Qa4 Bb5 Bb7 Rc8 Bf3 Rc6 Nac8 Rc5 Bg4 Rc6 Kd8 e7+ Kd7 Qgb3 Rg8 Qbc3 Ke6 Qcd4 Kf5 e6 Rh8 g8Q Bg7 Nc7 Bf6 e8R Be5 Re7 Bg7 Ne8 Be5 Qg7 Rg8 Qh8 Rg5 Qc4 Kg6 Rc5 Bc3 Re5 Nf7 Rc7 Nfd6 e7 Bf5 Rc6 Bg4 Rf2 Kh5 Qcg8 Kh4 Re2 Nb7 Rce6 Nbd6 Rh2+
B3R1bn/2bP1Nkr/Q7/3B3R/bQ1p1r1B/PRR2nn1/2q1bKP1/NB6 b - - 0 1 illegal: No proof kernel
n2k2n1/1pr2BrP/2Pb1B1N/NR3K1Q/1nQQ1Qr1/1Pq5/3NN1b1/1R5r b - - 0 1 legal: proof: e4 a5 g4 f5 exf5 h5 gxh5 c5 d4 a4 dxc5 a3 Nxa3 Ra4 Nb5 Ra8 Na7 Rh6 Kd2 Rh7 Ke1 Rh8 Ke2 e5 Kf3 g5 Kg4 d5 c4 d4 h4 e4 f4 d3 a4 e3 h6 d2 a5 e2 h7 e1R c6 Bd6 h5 Bd7 c5 Be6 a6 Ke7 c7 Bc8 b3 Nc6 h6 Nb8 Ra5 Qd7 Ne2 Ke8 Bb2 Be7 Nc6 Qe6 a7 Qf6 Be5 Qg6 Rb5 Bd6 Na5 Bd7 c8Q+ Ke7 c6 Bc7 Qd8+ Kf7 Rg1 Be6 Qd4 Bd5 f6 Ke8 f5 Kd8 f7 Na6 f6 Qg7 Kf5 Rc8 a8N g4 Nb6 g3 Nbc4 g2 Rh1 Bd6 f8Q+ Kc7 f7 g1R Qc1 d1N Qe8 Bg2 f8Q Nb2 Qh5 Na4 Nd2 Nb6 Qcc4 Na8 Qf6 Rb1 Qfh4 Nb4 Qhf4 Bd5 Bh3 Rg4 Rf1 Ra1 Rb1 Kd8 Bf1 Bh1 Bg2 Rc7 Bd5 Bg2 Be6 Nf6 Bf7 Rf8 h8N Ng8 h7 Re8 Rb2 Rh1 Rb1 Re6 Bg6 Ree7 Nf7+ Ke8 Nh6+ Kd8 Bf7 Qh8 Bg6 Rg7 Bf7 Re7 Bf6 R7g6 Qa7 Qg7 Bc3 Rc7 Qae3 Qd4 Qg1 Qe3 Be5 Qc3 Qgd4 Rg7 Bf6+
BBb2Q2/P3N2R/1RnBN3/RB1p2nn/2qr1P1b/bQP1K3/1R3r2/4k1b1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 a4 Kf6 h4 Ke5 f4+ Kd4 f6 b5 f7 e5 h6 g5 a6 g4 h7 g3 c6 e4 a7 g2 c7 d6 h5 b4 a5 b3 h6 b2 a6 Nd7 Nh3 g1B Ng5 Nc5 Rh2 Nd3 Ra5 Nf6 Nc3 Nb4 Bb5 Nc6 Nd5 Nh5 Ne7 b1N+ Ke2+ Kc3 Ne6 d5 Ba3 e3 Bd6 Rb8 a8B Nd2 a7 Nf3 Rg2 Rg8 h8R Ng5 h7 Rb6 Ba6 Rb2 Bb5 Rb4 Rf2 Rd4 Rh2 Bb7 c8R Qc7 Rb8 Bc8 Rb6 Rg7 Rg8 Rg6 h8B Rh6 Rg7 Rg6 Kf1 e2+ Kg2 e1B Rh7 Bg3 Bhe5 Bh4 Qb1 Kd2 Qb3 Ke1 c3 Ne4+ Kf3 Rg2 Bf1 Ra2 Bb5 Rf2+ Ke3 Ng5 Rg2 Nd8 Rh2 Qc4 Bb8 Nc6 Bed6 Bg7 f8Q Be5 Bdc7 Bd6 Rg2 Bb4 Bd6 Ba3 Raa6 Rf1+ Rf2 Bh2 Rc2 Rf2 Rb2 Bg1 Ra5
2BNn3/Q1n4R/4q2p/1nrqb2Q/4P2K/B2PR3/nNP2R2/kR1NN1rb b - - 0 1 illegal: No possible last move, all moves rejected
bNR2r2/3b2qQ/2QKNP2/2BN1p1P/1n3r1b/R2k4/R1bnqR1P/1N5B b - - 0 1 illegal: No proof kernel
8/N1BN1r1Q/PrRqQ3/p1Qq1nRK/QRbP2Rn/1P1r1r2/4B3/4b1k1 b - - 0 1 illegal: No possible last move, all moves rejected
R1q1b2B/q1N3NP/B3R1Q1/3Qrpbn/k5nB/r1P5/N2nP3/n1BKN3 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 h4 g5 b4 f5 c6 a5 c7 d5 e6 a4 e7 Kd7 e8N a3 b6 Kc6 b5+ Kc5 h6 Kb4 b7 d4 h7 a2 h5 d3 b6 g4 h6 g3 Nf3 g2 Nc3 g1Q Ng7 Qgd4 Bg2 Bd7 c8Q Qe3 Qc6 Qc8 Qg6 Na6 b8B Be8 b7 Nc5 Bg3 Be7 b8N Ra3 Bh4 Ne4 Na6+ Ka5 Rh2 Nd2 Nc7 Nf6 Bh1 Rg8 h8B Qa7 h7 Nh5 Rg2 Rf8 Rg4 Rf7 Re4 Bg5 Re6 Rd7 Bg2 Rd5 Bh1 Re5 Bg2 Ne4 Qd2 Kb4 Kd1 Ka5 Ne1 Kb4 Qe3 Nd2 Bb7 Ka5 Ba6 Kb4 Qf3 Ka5 Rb1 a1N Na2 Ka4 c3 Ne4 Qh1 d2 Rb8 Nb3 Kc2 d1N Rd6 Ndf2 Re6 Ned2 Ra8 Ng4 Qd5 Na1+ Kd1
b5R1/3N2P1/3RPkBB/1qQ1R1bp/2P3r1/1n1B1n1K/4QqBN/Rb1r1b2 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kf2 Ke7 Kg3 d5 e4 h5 b4 f5 c4 a5 g6 a4 b6 d4 b7 a3 e6 f4+ Kh3 d3 g4 f3 g5 f2 b5 d2 c6 a2 g7 Qd3+ Nf3 Ra4 b6 Na6 b8R Qd4 c7 Nb4 e5 Nc6 b7 Qc3 g6 Qc2 Nh2 Nh6 g8R Nd4 Qe2 d1B Nd2 Ng4 Nb3 Bh6 Nc5 Bg5 Bg2 f1B Nd7 Nb3 g7 Rh6 Ra8 Rg6 b8Q Bb7 Ra6 Ba8 c8B Qb2 Rc6 Bc2 Qc7 Bb1 Rd6 Ra5 Bb7 Rd5 Qc5 Rd1 Be4 Qd4 Bd3 Qf2 Nf3 Nh2 Be3 Bf6 Bh6 Rg4 Qd2 Be2 Re1 Bf1 Qe2 Bg5 Nf8 Ke8 e7 Kf7 e8B+ Ke7 e6 Kf6 Nh4 Nf3 Beg6 Bf4 Qc2 Bd2 Re5 Bg5 Qe2 Bc2 Rc1 a1Q Rb1 Qa4 Ra1 Nfd2 Nf3 Qb5 Nh2 Bb1 Rd4 Nf3 Rd7 Rf4 Rd6 Rg4 Nd7+
1B2qBB1/B4P2/2b2Rp1/1nN2b2/nN1r1PPk/1r1b2b1/q5RQ/2RK1RQ1 b - - 0 1 illegal: No possible last move, all moves rejected
2KB2rR/2RP1r1R/6k1/q1Ppb3/1bQ1B2b/1P1BRb1q/n2BN1n1/4Q1N1 b - - 0 1 illegal: No possible last move
bK2R1NB/1p1QN1PR/q1N2n2/br1P2Br/B1B1r3/NnrP3Q/2k5/7q b - - 0 1 illegal: Other
Q4R2/Pr1b1B1p/1b3kNB/B2r4/RKbQn1Qq/2N2bP1/2P3n1/2B1q2Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Kd2 Kf7 Kc3 d5 a4 e5 f4 b5 g3 e4 g6+ Ke7 a6 e3 a7 d4+ Kb4 e2 c6 e1Q+ Nc3 d3 f6+ Kd6 f7 Ke7 f5 d2 g7 Qd3 c7 Qde4+ Bc4 Nf6 g8Q Qh4 a5 Bd7 c8Q Ne4 a6 Kf6+ Qc5 Bh6 f8B Be3 Qcd5 Bb6 Qgg4 Rg8 Ba2 Rg5 Nge2 Rg7 Rf1 Nc6+ Ka3 Re7 Bh6 Rd8 a8Q Nb4 a7 Nd3 Nf4 b4+ Kb3 Rg7 Ng6 Nf4 Qc5 Ng2 Qd4+ Kf7 Kc4 b3 f6 b2 Kb3 b1B Kb4+ Be6 Bb3 Rd5 Ra4 Bd7 Rf5 Ke6 f7 Ba2 f8B Re7 Qdf3 d1B Bhd2 Be2 Bfh6 Rg7 Qf1 Bf3 Qh1 Rf7 Re5+ Kf6 Re8+ Re5 Rc8 Re7 Bf7 Bc4 Qf2 Rf5 Rf8 Rd5 Qd4+ Rde5 Nb5 Bc6 Ka3 Rb7 Ba5 Be8 Nc3 Bd7 Qf2 Rh5 Kb4 Rd5 Qd4+
1B5K/p3PB2/1kR2nr1/1q1B1NRQ/2Pb1R2/PNQn2Bn/4q1b1/3r1nR1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 e5 fxe5 d5 b3 d4 c3 c4 cxd4 Qd5 bxc4 Qd8 Kf2 Kd7 Ke3 Kc7 Ke4 b5 h4 g5 h6 g4 a3 g3 h5 b4 d5 g2 d4 f6 d6+ Kb6 d5 b3 h7 b2 d7 Qe8 Kf5 Bc5 e4 Bf2 h6 Qd8 Kg6 f5 Kg7 f4 d6 f3 e6 Kc6 e7 Qc7 d8B Qa5 e8B+ Bd7 e5 Kc5 e6 Nf6 e7 Bg3 Rh5+ Be5 Ne2 g1N Bg2 f2 Rg5 f1Q Nd4 Bf5 d7 Qf3 Bc7 Nc6 d8R Qe2 Nd2 b1N Bf7 Qa4 Bgd5 Qf3 Rc8 Nb4 Bb8+ Kb6 N2b3 Bh3 Nf5 Bg2 Bf4 Qb5 Bg3 Rd8 h8Q Bd4 h7 Qe2 Rc7 Nh3 Rc6+ Kb7 Qc1 Nd2 Qc3 Nd3 Rg1 Nf1 Qe8 Rd7 h8R Rd6 Rh4 Rd8 Rc5+ Kb6 Rf4 Rd6 Kh8 Re6 Be5 Rd8 Bd6 Nd7+ Be5 Rg6 Rc8 Nf6 Bb8 Rd6 Rc6+ Kb7 Qc8+ Ka8 Nh4 Ndf2 Na1 Be5 Bf3 Rd1 Nb3 Bd4 Qg4 Kb7 B3d5 Nd3 Nf5 Nc5 Rc8+ Kb6 Qh5 Nd3 Rc6+
5b1q/n2R1p2/3P1P1k/1BnR3N/bBR4P/Rr1Qbn2/1Q2NBBb/4b2K b - - 0 1 legal: proof: e4 c5 a4 h5 g4 a5 gxh5 b5 axb5 d5 d4 Ra7 dxc5 d4 Bg2 Rd7 Bf1 Rd5 exd5 Ba6 Bd3 Bb7 Bf1 Bc8 b4 g5 c4 e5 f4 g4 Kf2 e4 Kg2 e3 h4 g3 h6 d3 d6 a4 c6 e2 f5 e1B c5 a3 h7 a2 b6 d2 c7 Bb7+ c6 Ne7 c8R Bg7 b5 Kf8 f6 Nf5 Ba3 Na6 Bb4 Nh6 Ne2 Nf5 Nf4 Ne7 Nh5 Ng6 Nc3 Ba8 b7 Nc5 b8Q Ne5 b6 Nf3 c7 Bc6 b7 Ba4 Bb5 Rg8 Qc2 d1N Ne2 Nc3 h8R Bh6 Rd1 a1B Rd5 Bb2 Qd3 Bbc1 Rh3 Bce3 Kh1 Bg7 Bd7 Nb5 Bc6 Na7 Bb5 Qe8 Rd8 Bgh6 c8B Bg7 Rd7 Bgh6 Rh7 Rg7 Rd4 Kg8 Rc4 Rg4 Rg7+ Kh8 Rg5 Bf8 Rf5 Kh7 Rd5+ Rg6 Qc7 Kh6 b8B Rg4 Qb6 Re4 Bb7 Rd4 Qf5 Rd3 Qe4 Rb3 Qd3 Be7 Bc7 Qh8 B7c6 Bf8 Ba8 Nb7 Qbd4 Nc5 Bb6 Ne5 Qb2 g2+ Kh2 g1B+ Kh1 Nf3 Bac6 Nb7 Rg3 Bh2 Bd4 Bg5 Bf2 Be3 Rg1 Bc3 Ra1 Be1 Ra3 Nc5 Re5 Nd4 Bg2 Nf3 Rd5
qRr2N2/5k1r/1p1K3n/1BPQ1RQ1/3Q1n2/bP3rQP/1n2r3/1NBB2Br b - - 0 1 illegal: No possible last move
1R3Qrq/1KNB4/6r1/R1Qr4/PQPr1qk1/4Nb1p/1BB1r1BP/2b1nQ2 b - - 0 1 legal: proof: d4 c5 dxc5 f5 b4 a5 bxa5 Na6 e4 Nb8 exf5 Qc7 Qd5 Qb6 Qd1 Qd8 g4 Nh6 f4 Na6 f6 Kf7 g5 Ke6 f5+ Ke5 Bd3 Kd5 Be2+ Kc6 Bf1 Nc7 f7 Ne8 Bd2 Nf6 gxf6 Ng8 Bh6 Ra6 Bc1 Ra8 Kf2 h5 Kf3 d5 c4 Kd7 a4 g5 a6 e5 a7 b5 Qd2 h4 Qf2 e4+ Ke3 h3 Kd4 b4 Nf3 e3 Nbd2 g4 Ra3 b3 Ne4 e2 Bb2 e1R Ng3 Re2 Bg2 Nh6 Re1 Rg8 Qf1 Bb7 Ng5 Bd6 f8Q Nf7 Rd1 Bf4 Ne6 Ne5 f7 Bc1 f6 Nd3 Nf5 g3 Nc7 Ne1 Rd3 Rc8 a8B Rg5 Be4 g2 Rf3 g1R Bc2 Rg6 Ra1 R1g5 Rb1 Bc6 Re3 Rb8 Re5 Rb5 Bb7 Rg8 Ba8 R5g6 Bb7 Qa8 Qb8 Ra5 f8Q Rb5 f7 Ra5 Kc3 d4+ Kb4 d3 Qa7 Bh1 Bg2 d2 Qfb8 d1R f8Q Rd5 Qab6 Ra6 Kb5 Rg4 Qa5 Rag6 Qbb6 Qb8 Ka6 Rgd4 Qb4 Qd8 Kb7 Qg5 Re8 Qd2 Ra8 Qf4 Bge4 Bf3 Ra5 Bh5 Bg2 Bg4 Ne8 Bf3 c6+ Ke6 c7+ Ke5 Q6c5 Ke6 Ba3 b2 c8B+ Ke5 Bd1 Ke4 Bd7 Ke5 Nc7 Ke4 Ra1 b1Q Bb2 Qc2 Rb1 Qc3 Bc2+ Ke5 Qh6 Kf6 Qhf8+ Kg5 Ra1 Kg4 Ra3 Qcd2 Re3 Qh6 Re8 Qdf4 Rb8 Qh8 Ne3+
2qkqQQ1/1p1N3q/qP2N1Q1/2qR4/2bn3B/1RrB4/B1rPPQ2/4B1Kn b - - 0 1 illegal: No proof kernel
KR4n1/1rq3N1/BB2R2Q/r3N1pQ/1Q3nP1/1r1Q1PR1/1n2P3/1kq1R1rb b - - 0 1 illegal: No proof kernel
rBQ2r1R/1QK3R1/1n4bb/1k1r1N1R/2N2pBR/6P1/1BP1qP2/Bb4qb b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 d5 axb5 Nd7 d4 Nb6 dxc5 d4 Rh6 Bf5 Rh1 Nd5 exd5 Bc8 Ke2 Kd7 Kf3 f5 Kf4 h5 Ke5 a5 b4 f4 g3 h4 d6 e6 g6 h3 g7 a4 b6 Kc6 b7 h2 b8B a3 d7 a2 Na3 d3 Be2 d2 Bg4 Qb6 d8R Ne7 g8R Bh6 Nf3 Qb5 Rg7 Nd5 Nh4 Rf8 Bb2 Nb6 Qb1 d1B Nc4 Qa6 Rd5 Kb5 Kd6 e5 Nf5 e4 Kc7 e3 Ba7 e2 c6+ Ka4 b5 e1R Re5 Be6 Rc5 Re5 Rd5 Nc8 Bad4 Nb6 Rd8 Rd5 Re8 Nc8 b6 Kb5 b7 Nb6 b8B Bf3 Bdc3 Be4 Rc8 Rf6 Rh8 Rf8 Re1 Bd3 Re5 Bg8 Qh1 Bf7 Rf1 a1Q Qe4 Bg6 Rh1 Qg1 Ba1 Bf7 Bcb2 Bg6 Ne7 Bf1 Rh5 Bg2 Nf5 Bf1 Nce3 Bc4 Qe7 Ba2 Nc4 Bb1 Qd7 Qa5 Qc8 Qae1 Qb7 Re5 Kd6 Qe4 c7 Qe2 c8Q Rd5+ Kc7 Qge1 Rg1 h1B Rg2 Qc1 Rgh2 Qg1 R2h4
1qBkR3/P4nq1/2K2R2/NQ1np3/2QP3r/4PN1b/RNn5/1bB1NbbR b - - 0 1 legal: proof: f4 d5 c4 g5 cxd5 a5 fxg5 a4 h4 a3 bxa3 Nh6 a4 Ng8 a5 Bg7 Na3 Bh6 Nb1 Bf8 g4 b5 g6 Bd7 g5 Qc8 g7 Ra6 h5 Rg6 hxg6 Qd8 Nh3 Bf5 Ng1 Bc8 Kf2 h5 Ke3 c5 Ke4 e5 a4 c4 d4 h4 d6 f5+ Kd5 c3 e3 h3 a6 c2 a7 h2 a8N f4 d7+ Ke7 a5 f3 a6 b4 a7 f2 Nf3 b3 Ra2 b2 Ne1 Nh6 g8Q Na6 g7 Qb6 d8N Qb8 g6 Bh3 Nd2 b1B Kc6 Nf7 Nb7 Nc7 Nb6 Rh4 Na4 Nd5 Ba6 f1B Ndf3 Ke8 Na5 Kd8 Qh7 Bc5 Bc8 Be7 Nb2 Bg5 Qe2 Bf4 Qa6 Bg3 Qb7 Bf2 Qb5 Bg1 g8R+ Ke7 Bd2 c1N g7 Nb3 Qc2 Na1 Qcc4 Nc2 Rd8 Be2 Rh8 Bef1 Rh6 Kd8 Rf6 Bf2 Rg1 h1Q Bc1 Qg2 Rh1 Bg1 g8R+ Ke7 Rgg6 Kd8 Re6 Qg3 Rgf6 Qg7 Re8+
nq2Q3/1bk3Rq/1r1Rp2Q/PQ6/n1n1NBKn/4P1PB/NR1Rr3/1r2Q3 b - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 a5 b4 Nc6 bxa5 Bh6 h4 Nb8 hxg5 Bg7 Ba3 Be5 Bc1 Bg3 fxg3 Be6 Rh2 Bd7 Rh1 Bc8 Kf2 Kd7 Kf3 b5 a4 h5 d4 f5 d6 c5 d5 h4 g6 b4 g5 b3 g7 h3 a6 f4 a7 h2 g6 c4 a5 c3 Nh3 e6 Ng5 c2 Qe1 b2 Nc3 b1N Bh3 Nh6 g8R Rh7 g7 Nf5 Na2 Nc3 Kg4 f3 Bf4 c1R e3 f2 Rb1 f1N Rb2 Bb7 Ne4 Nh4 Rg1 h1Q Rgg2 Na6 Rgd2 Rb8 a8Q Nc7 Qa6 Qf8 Qb5+ Kd8 d7 Na8 Rh8 Rh6 g8R Rb1 Rg7 Na4 Rhh7 Qd6 Rh8+ Kc7 Rd8 Bc8 Re8 Rb6 d8Q+ Kb8 Qdd7 Qc7 Ree7 Bb7 d6 Rh8 Qdc6 Kc8 Qcd5 Qb8 d7+ Kd8 Qdc4 Rh6 Rd6 Nd2 Qc3 Rh8 Qf6 Kc7 Qh6 Nc4 Ref7 Rd8 Rf5 Qh2 Rfd5 Qc2 Rd2 Rf8 Be5 Rf2 Bf4 Re2 Ng5 Qh7 Ne4 Qc8 d8Q+ Kb8 Qde8 Qd8 Rg8 Kc7 Rg6 Qb8 Rg7+
2Qbn2R/kP1qN1Nn/1n3q1Q/B3p2b/qRR5/1r1QRQ1P/3KP3/q6B b - - 0 1 legal: proof: f4 d5 g4 h5 gxh5 e5 c4 b5 cxd5 a5 a4 Rh7 axb5 Ra6 f5 Re6 fxe6 Rh8 d4 f5 b4 c5 e7 Kd7 e8R Kc7 h6 Kb6 h3 g5 h7 a4 d6 g4 d5 a3 d7 a2 d6 f4 Bd2 g3 Bg2 c4 Nc3 f3 Qb3 Ka7 b6+ Ka6 b7 Kb6 b5 Nf6 Nd5+ Ka7 Ba5 c3 Ne7 c2 Kd2 f2 Nf3 f1Q Nd4 Qf3 Rab1 a1Q Rhc1 Qa4 Bh1 g2 Ne6 g1N Ng7 Qc7 d8R Nbd7 Qe3+ Nb6 Rb4 Bg4 d7 Bh5 Qb3 Rg8 h8Q Qf5 Qh6 Nf3+ Ke3 Ng5 Kd2 Qg6 Qf3 Ngh7 Rc8 Qc6 d8Q Qg4 Qdd5 Qgd7 Qdd3 Qce6 Red8 Ne8 Rcc4 Qf6 Rg1 Rh8 Rgg4 Rg8 Rge4 Rh8 Re3 Rg8 Nd5 Be7 Rb8 Bd8 Ne7 Nd6 Ne8 Rg1 Ng7 Rb1 Rbc8 Rb3 Rb8 Bc7 Rh8 Ne8 Rh4 Bd8 Rhc4 Nd5 b6+ Ka6 b8Q Qfc6 b7 Qf6 Qhg6 Nb6 Qc8 Ka7 Ke1 c1Q+ Qd1 Qde6 Qh6 Qca1 Qb1 Qec6 Kd2 Qd7+ Qd3
1N2N1nQ/1Bqq2r1/1B2PR2/1k1p4/4q3/1b1QqNrP/1n1Pn3/BKB2R1N b - - 0 1 legal: proof: b4 h5 f4 e5 fxe5 b5 g4 Be7 gxh5 Na6 a4 Kf8 axb5 Qe8 b6 Qd8 c3 Nb8 b5 Bb4 cxb4 Ke8 e4 f5 b7 a5 h3 c5 h6 g5 h7 g4 e6 g3 b6 g2 e7 f4 b5 c4 e5 c3 Ra3 c2 Be2 f3 Bc4 a4 Nc3 f2+ Ke2 f1N Kd3 Ng3 Qf1 Ne2 Ne4 Na6 b8B Ra7 Nf3 g1Q b7 d5 b6 Kd7 e8N Kc6 e6 Qd7 Rb3 a3 Be5 a2 b8B a1Q b7 Qa4 Ba1 Qb6 Ng3 Nc5+ Ke3 Qbc7 Ba6 Nd3 Rg1 Qa3 Nh1 Nb2 Rg6 Qb4 Rf6 Qg3 Bc7 Qgf4+ Kf2 Qe3+ Ke1 Qbe4 b8N+ Kc5 Rb6 Bb7 Bd8 Bc6 Bb7 Ba4 Ra6 Bb3 Bb6+ Kb5 Ra4 Qg6 Raf4 Qge4 R4f5 Nh6 Rf4 Rg8 h8Q Rg7 Qg2 Ra4 Qg6 Ng8 R4f5 Q4d3 Qgh7 Rag4 Rf4 Qc4 Qd3 R4g6 Nh4 Rg5 Rf1 Rg3 Nf3 Nd1 Bcb2 c1Q Ba3 Qc2 Bc1 Nb2 Qc3 Q2e4 Qc2 Na4 Kd1 Ba2 Qc3 Qcc7 Qd3+ Bc4 Kc2 Nb2 Nh4 Qcd6 Kb1 Q6c7 Qc2 Bb3 Nf3 Qec4 Qc3 Qce4+ Qd3+
R1Nb2q1/1pPNPR2/b3Q1n1/1QKn3N/1PN2Rb1/5r2/nB1bB1qk/4R3 b - - 0 1 illegal: No proof kernel
5B1k/q1qb3P/pr1BQ1b1/5Q1B/bq1n3B/3nN2P/P1RRR1N1/b1R3K1 b - - 0 1 legal: proof: f4 c5 g4 d5 e4 h5 exd5 b5 gxh5 e5 b4 e4 bxc5 a6 c6 Ra7 d6 Rc7 Bg2 Re7 Bf1 Re5 fxe5 Qg5 Nf3 Qf6 Ng1 Qd8 Kf2 g5 c4 f5 d4 Kf7 h3 Kg7 h6+ Kh7 c5 g4 e6 b4 d7 b3 d5 b2 c7 f4 c6 f3 d6 Qg5 d8B Bd7 c8Q Qg6 e7 Bg7 e8R Bf6 c7 Qf7 Qe2 Nc6 Be7 Nd4 Nd2 b1B Bf8 Ne7 Nc4 Nd5 Bf4 Nb4 Rh2 Be5 Bg2 e3+ Kf1 f2 Bf3 g3 Bh5 Rg8 Nf3 Kh8 h7 Rg6 Ne1 Nd3 Ng2 Ba4 d7 Rb6 d8B Qg7 Qb7 Bf6 c8R Qc7 Qe4 Bd7 Ne1 Bc2 Qg4 Bca4 Rc1 e2+ Kg2 f1B+ Kg1 g2 Qee6 Bg7 Bh4 Bf6 Ne3 Bg7 Nf3 e1Q B4d6 Qb4 Ne1 Be2 Qge4 Bg4 Rc2 Bf5 Rd2 Bg6 Q4f5 Nb3 Rc2 Ba1 Red8 Nd4 Re2 Qb8 Rc1 Qc7 Rc8 Qb8 R8c5 Qc7 R5c2 Rb8 Red2 Nb3 Nd1 Ne5 Kf2 g1Q+ Ke2 Qgd4 Kf1 Qda7 Rhe2 Nd3 Ng2 Nd4 Kg1 Rb6 Nde3
N1B2rB1/2Np1qn1/P1P3Qq/R6N/5Q2/1k6/r2PRnNb/BKn1q1nB b - - 0 1 illegal: No proof kernel
N1b1n2R/K4k1N/1Q5B/NPr3b1/Q1n3Bp/Qn1Q1rPp/2P2N1b/2Rq4 b - - 0 1 illegal: Other
N1n2N2/RN2nK2/1nr2N2/P4bQp/2P4p/1PR1RQbk/1b2R2r/1B2q1B1 b - - 0 1 illegal: Other
4N1BQ/2B2R1N/2n1pPnB/2K1N1qB/1p3nr1/r1b1Q3/3PR2P/1k1N1b1b b - - 0 1 illegal: No proof kernel
2k2bBN/3N1RBK/Pnr1Q3/B1QR3b/2B5/1NP2rp1/1Npr1nPq/7b b - - 0 1 illegal: No proof kernel
bb1nBr2/6p1/rB1N1PQ1/2QNP2b/1B1K4/1pBN2P1/r1k3q1/R1Rn3N b - - 0 1 illegal: No proof kernel
3bb1BB/4RPRP/5NK1/bn1n1Pp1/1kBp2n1/5rNq/Br6/2RQ2RQ b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 e5 Ke3 Ke7 Ke4 a5 c4 g5 b4 a4 f4 d6 h4 a3 b6 a2 h6 Nd7 f6+ Ke6 h5 Ra5 b5 Ra4 c6 Ra7 c7 Bg7 c5 Ra6 b7 Rb6 b8R Qf8 h7 Bb7+ c6 Ra6 c8B Ra5 b6 Rd5 c7 Qe8 h6 Ne7 Nd2 Bc6 b7 Rf8 h8Q Qh5 Bb2 Qh3 Rc1 a1N Ne2 Nc2 Rg1 Na3 Ng3 Nb5 Bc4 Rf7 Ra8 Bf8 b8R Bg7 Ke3 e4 Ra7 Bf8 Bb7 Ne5 Re8 Bg7 Rg8 Be8 h7 Kd7 c8B+ Kc7 Ba6+ Kc6 Be6 Kc5 Ba2+ Kb4 Rac7 Bf8 Rg7 Rc5 Bec4 d5 Bc8 Rc6 Be6 Rb6 Rd7 Na3 Kd4 e3 Nde4 e2 Ke3 e1B f5 Ng4+ Kf3 Nb5 Be5 d4 Rb7 Nd5 Ra7 Rc7 Bg8 Rc8 Rae7 Ra8 f7 Ndc7 Nf6 Ra3+ Ke4 Na8 Kd5 Rb8 Ke6 Nb6 Rg6 Bc3 Qg7 Nd5 Qh6 Be1 Rg7 Rf3 Ra7 Bd6 Re7 Bc7 Qh5 Bd8 Qh4 Qf1 Qh1 Qh3 Rg6 Ka3 Nd7 Nbc3 Bh8 Rb2 Rg7 Bd2 Nf8 Nb5 Nd7 Nh6 Ke5 B2a5 Ke6 Kb4 Ke5 Ndc3 Kf6 Ng4+ Kg6 Nd5 Nf6
2r1BNQq/1bPNRP2/R2B1Q2/2Q1prn1/K1n2rRQ/7p/k4P2/bR5b b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 c4 exf5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Qd6 Qc7 Qd1 Qd8 Kd2 Kf7 Kc3 h5 Kb4 d5 g4 a5+ Ka4 e5 b4 d4 c4 d3 c6 h4 g6+ Kf6 c7 h3 g5+ Ke7 g7 Kd6 g6 d2 c5+ Kd5 b6 Be7 f6 Na6 f7 Bf6 b5 Bf5 c8Q Qe7 b7 Rh4+ Qg4 Nh6 g8R Qe8 b8R Rh5 c6 Be7 b6 Bb4 b7 Nc7 g7 Bc3 Nf3 Ne6 Ba3 Be4 Ng5 Nf5 Bb5 Nd6 Nh7 Nc4 Qh4 Rf5 Nf8 Ng5 Bd6 Bf3 Re1 Bh1 Na3 Bb2 Ra2 Ba1 Rb1 Qd8 c7 Qe8 Qd8 d1B+ Rb3 Bh5 Qf6 B5f3 Rb1 Bfg2 Rd8 Rc8 b8Q Bf3 Qa7 Be4 Kb3 a4+ Kb4 Bef3 Rd7 Be4 Re7 Bef3 Nc2 a3 Ka4 Qd8 Ne1 Be4 Re2 a2 Nd3 Qe8 Nc5 Kd4 Nfd7 Kc3 Ne6 Bb7 Qc5 Qf8 Ree1 Qd8 Nef8 Kc2 Rbd1 Kb2 Rd4 Qe8 Rg4 Qd8 Rh8 Qe8 Rh6 Qd8 Ne6 Qh8 g8Q Rf8 Qfg6 Rb8 Nef8 Ra8+ Kb4 Nb6 Nf6 Rc8 Ka5 Kb3 Be8 Bd4 N6d7 a1R+ Kb5 Ra7 Rb1+ Ka2 Q6g7 Ba1 Rhe6 Ra3 Qf6 Raf3 Kb4 Nd5+ Ka4 Ne3 Qc3 Nh7 Bb4 Ng5 Ra6 R3f4 Qcc6 Nc4 Bd6 Rd8 Qb6 Rc8 Qc5
1rQNn3/p1p3BP/B5N1/B3qN1P/P2bn1R1/Qr4BK/1k2b3/rNn4R b - - 0 1 legal: proof: e4 b5 g4 e5 d4 h5 dxe5 f5 gxh5 b4 exf5 b3 cxb3 Rh7 b4 Rh6 b5 Rh8 h4 Ke7 a4 d5 f4 g5 Kf2 d4 Kg3 d3 b4 d2 f6+ Ke6 f5+ Kd5 b6 Kd4 b5 g4 e6 Qd7 b7 Ba3 b6 Nh6 e7 Bb2 e8N Qe7 f7 Bc3 f8B Rg8 f6 Qf7 Bg7 Ba5 Ne2+ Kd3 Nd6 Na6 b8Q Nc5 b7 Qe7 f7 Bc3 f8B Bd4 Nf5 Nf7 h6 Nd6 h5 Ne8 h7 Qe5+ Kh4 g3 Kh3 g2 Bd6 Be6 Qc8 Bc4 b8N Ne4 Nc6 Rb8 Nd8 Rb3 Bca3 g1R Qc1 d1N Bab4 Ndc3 Ba5 Na2 Qa3 Nc1 Nf4+ Kc2+ Bd3+ Kd1 Ng6 Re1 Ng3 Rf8 Bf1 Kc2 Rg1 Bd3 Nf5 Rh8 Rg4 Rd1 Be1 Be2+ Bg3 Rg8 Bb4 Rh8 Ba5 Rf8 Qb4 Kb2 Qd6 Rf6 Qc5 Rfb6 Qf8 Rb8 Qc5 Bf3 Ba6 Be2 Qa3+ Kc2 Kh4 Na2 Nc3 Rf1 Rd1 Re1 Kh3 Rf1 Rd3 Ra1 Rd1 Nc1 Re1 Qe6 Rh1 Qe5 Qf8 Kb2 Nb1 N8f6 Qe7 Ne8 Qa3+
k2rqQN1/2nRNn1K/Q5r1/2b1N1BP/4pNP1/5BRP/2Q3p1/1b1q2Qn b - - 0 1 illegal: No proof kernel
Q3R3/2q1nq2/2B2p1r/1NBB1Q2/1PnKB2b/2r2PP1/k1pbN1bQ/6RQ b - - 0 1 legal: proof: d4 b5 h4 d5 a4 g5 axb5 e5 hxg5 Qd6 dxe5 Kd8 c4 Ke8 cxd5 Qd8 Kd2 Kd7 Kc3 c5 e4 a5 b4 h5 f3 a4 b6 c4 d6 Ke6 g6 h4 d7 a3 b7 h3 g7 h2 Kd4 c3 Ne2 f6 Be3 a2 Na3 c2 Nb5 Bd6 Rg1 Qf8 d8Q h1Q Qa5 Nd7 b8Q Ne7 g8B+ Qf7 Bh7 Ra7 g3 Nb6 Qa8 Nc4 Qd2 Ra6 Re1 Rc6 Bf2 Qh3 Qh6 Qg4 Qh1 Qgg7 Bg6 Rh6 Be3 Rc7 Qh2 Ba6 Qh8 Kd7 e6+ Kc6 e5 Bc8 Qa8+ Kb6 Be4 a1B+ Nbc3 Ba6 Qh7 Bb2 Qf5 Bc1 Nb5 Bd2 Bf2 Bg5 Be3 Bh4 Bd5 Ng6 e7 Rc8 e8Q Ne7 e6 Bf4 Bf2 Bd2 Qh8 Nb2 Nc1 Ng6 e7 Rh7 e8B Qe7 Qh1 Rc3 Nd6 Bhg5 Bfb5 Qc7 Ba2 Qgf7 Bd3 Rh5 Bd5 Rh2 B3e4 Bf1 Bec6 Nc4 Bd3 Bg2 Re8 Ne7 B3e4 Rh5 Ne2 Rh3 Qg7 Rh4 Qgg6 Rh6 Qfh3 Bh4 Qgf5 Na3 Q3h2 Nc4 Be3 Na5 Nb5 Nc4 Na7 Ka6 Bf4 Kb6 Bd6 Ka6 Bb7+ Kb6 Nc6 Kb5 Na7+ Ka4 Nb5+ Kb3 Bbc6 Kb2 Bc5 Kb3 Qac8 Ka2 Qa8+
b7/1BqRq3/KQ1P1n2/1Qr1b1P1/p3R1n1/r2rN1PR/1Q5p/B3QNRk b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Kc4 Ke5 f4+ Ke4 d4 e5 b4 c5 g3 h5 f6 a5 f7 h4 d6 a4 f5 h3 b6 Bd7 b7 Be7 f8Q Na6 b8Q Be6+ Kb5 c4 f6 c3 f7 c2 d5 Rh7 d7 Rh5 d6 Qc7 d8R Rh7 Rd7 Bd5 Ne2 Kf3 Qb6 e4 Bb2 c1R Qe1 e3 Qfb8 Rc2 f8R+ Nf6 Nf4 e2 Ra2 Rf7 Re8 Ng4 Ng2 Bf6 Ne3 Nc5 Re4 Be5 Ba1 Rc3 Qh8 Rc8 Rd2 Nb7 Ka6 Ra3 b5 Re7 Rh2 Bc6 Rg2 h2 Rdd4 Nf2 Rh4 Ng4 Rh3 Rf7 Re4 Nc5+ Ka5 Ba8 Qg7 Ne6 Ka6 Nf4 Qh8 Nd5 Qf6+ Bf4 Qb2 Rff8 Qba5 Rd3 b6 Ndf6 b7 Be5 b8Q Rf7 Qab6 Re7 Qeb4 e1Q Q6b5 Qe2 Q8b6 Rf7 Rg1 Nh5 Nf5 Ra3 Rd4 Qc3 Rc4 Bh8 Rd4 Qe7 Nd2+ Kf2 Bc4 Be5 Bd5 Rc7 Re4+ Qc5 Nh4 Rff3 Bb7 Rfd3 Ng2 Nhf6 Ne3 Qc6 Ndf1+ Kf3 Rd8 Qcd7 Qe1 Rc5 Rg2 Qc6 Rd7 Qc7 Rd2 Nf2 Nd5 Kg2 Nde3+ Kh1 Re2 N2g4 Rc2 Rcd5 Rg2 Rc5 Rg1+
2k2qR1/1r3Np1/Qn1b4/1q1B2q1/2P1R1pQ/2K1PQP1/1R2b1nB/rR3Q1N b - - 0 1 illegal: Other
1rR1bB1Q/1N2P2B/1b1P3q/4nq2/4N1pN/2r1Rp1k/nPN5/nQ2K1QQ b - - 0 1 illegal: No possible last move
1N2b1R1/2BqpQ1Q/PBr2PK1/B5b1/pnrq2BP/n1RN4/1b2R3/R2k4 b - - 0 1 illegal: No proof kernel
1BR1Q3/P4NPb/b1qRBbpR/1rkN3R/K2Q1nrp/2B2B2/4Pn2/1q6 b - - 0 1 illegal: No proof kernel
1QB4q/p1R1N1n1/2PQ2kN/PKR2b2/nQ2Q1Nr/N3rr2/q1p1P3/2B3b1 b - - 0 1 illegal: No possible last move
2B2K2/2nq1BN1/1nbNp1Qr/1RN2bBb/2pR1b2/1Q2PBPk/3r2P1/7N b - - 0 1 illegal: Other
r3B3/4B2B/1P2NbQR/1r4Rp/1P3r2/b2K1Qn1/npQ2Q1P/1NB2kqr b - - 0 1 illegal: No possible last move, all moves rejected
1bq5/rb2QNB1/p1b3BB/1k1Q1P1P/N2P1B2/n2KR2R/rN3p2/N2n2b1 b - - 0 1 illegal: No proof kernel
Q1nN2RR/2Q1r1P1/3k2p1/br3q1r/bp2B1B1/1RP1BN1P/6K1/R1Br2n1 b - - 0 1 illegal: No proof kernel
1k2bq2/b1pp1rbK/N3RBn1/P1N1r3/1QbN1B2/nBP3PR/B7/N5Q1 b - - 0 1 illegal: No possible last move
7b/1P2qrkr/1R1NpQ1R/2P2Q2/Q2p2nb/4nQ2/R2P2BR/KN1rr1B1 b - - 0 1 illegal: No possible last move, all moves rejected
q1n3R1/qk1N4/2bBK1bB/1Q4BQ/Bn2PP2/1p1p3N/R2P2Qb/3n1Qr1 b - - 0 1 illegal: No proof kernel
4B1b1/2r1q3/B2RrPq1/N4k2/Kp3q2/BP1bQ1bn/Rp1RPN1R/2Q4B b - - 0 1 illegal: Other
1b1R1k2/p1Qb1N2/P1PNnqn1/rp1B2R1/3q4/nqBN4/PB1K3Q/N2B4 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 f5 exf5 h5 gxh5 Na6 dxc5 Rb8 b4 Rb6 Bg5 Rd6 Bc1 Rd3 Qf3 Ra3 Qd1 Ra5 bxa5 Rh7 Nc3 Rh6 Nb1 Rh8 f4 g5 c4 d5 h4 e5 h6 g4 f6 e4 f7+ Ke7 h5 g3 c6 g2 f5 d4 h7 d3 f6+ Ke6 h6 e3 c7 e2 c5 Qd5 c6 Nb8 a6 Qh5 Qd2 Bb7 c8B+ Nd7 Bb2 Be7 f8Q Bc5 f7 Qd5 Qg7 Ke7 f8N+ Ke8 Nh3 g1N Bg2 Qf7 Na3 Qf6 Bd5 Ne5 Bg4 Bc8 Nf2 Bd7 Nc2 Ne7 Rh5 Nh3 Rg5 Nc4 Rd1 Bd6 Na1 Na3 Ne6 Bb8 Bgf3 Rg8 h8B Nf4 h7 Neg6 Qc2 Rf8 Kd2 Qd4 Qe5 Rg8 Ng7+ Kf8 Ne8 Ne6 Qc7 e1Q+ Kc1 Qf1 Kd2 Rg7 Bc3 Rg8 Be5 Rg7 h8N Rf7 Be2 Rf3 Nf7 Rg3 Ng4 Qf6 Nf2 Qa4 Bb2 Qb3 Bec3 Rh3 Re1 Rh4 Bd1 Rd4 Re4 Ra4 Rd4 Ra5 Bc4 Bc8 Rd8 Bd7 Bd5 Ke7 Ke3 Kf8 Qe2 d2 Nd3 Nh4 Qeh2 Ng6 Bh5 d1Q Be2 Qdf1 Kd2 Qd4 Bd1 Qff6 Ned6+
Qqk2R1q/1q1r1bnr/4BNp1/BBP4R/N3r1P1/N1KN1B2/1p1P1nQ1/8 b - - 0 1 illegal: No proof kernel
1r1q3q/1b1rpk2/Pb1N3P/2R1P3/B4pN1/Qn5b/QR1B3r/1NQNQ1K1 b - - 0 1 legal: proof: g4 a5 c4 h5 gxh5 g5 b4 d5 bxa5 Nd7 cxd5 Ndf6 f4 g4 Nc3 Nh7 Nb1 Ng5 fxg5 Be6 Bb2 Bf5 Bc1 Bc8 Kf2 c5 e4 f5 a4 b5 h4 c4 d4 f4 a6 b4 g6 c3 g7 b3 d6 b2 h6 c2 e5 Kf7 d5 Qe8 d7 Rh7 d8Q Qb5 a7 Qb7 h5 Be6 a5 Bd7 d6 Rh8 h7 Be6 h6 Bc8 d7 Qd5 Bd2 c1R Qc7 Bb7 d8Q Rc2 Rh2 Rb8 a8Q Nf6 g8N Nd7 Nh3 g3+ Kg1 g2 Nf2 Nc5 Bb5 Nb3 Qe1 Bg7 Nd1 Bf6 Qdd6 Bh4 Qa3 Qd8 Nf6 Rg8 a6 Rg6 Ng4 Rd6 Ra2 Rd7 Ba4 Qh8 Rh3 Qd8 Rc3 Bf2+ Kh2 Ba7 Rc5 Bb6 Kg1 Qh8 Nbc3 b1B Rb2 Bc8 Qae4 Bb7 Qeb4 Qd8 Qa2 Qh8 Qba3 Qd8 Be3 Rf2 Bd2 Bf5 Nb1 Be6 Nh2 Bh3 h8N+ Ke6 Ng6 Kf7 Nh4 Re2 Ng4 Rf2 Bc3 Rc2 Bd2 Qh8 Kf2 Qd8 Nf5 g1Q+ Ke2 Qh1 Kf2 Qc6 Kg1 Qf6 Qc6 Qfh8 Nd6+ Kg8 Bb4 Rh2 Bd2 Kf8 Qb5 Kg8 Qc4+ Kf8 Qc1 Kg8 Nc8 Kf7 Nd6+
4B1qb/KQq1n3/Rn2B1N1/1Qb4Q/3p2Pp/2Pq2kr/bB1P3R/N3B2Q b - - 0 1 legal: proof: e4 c5 a4 g5 h4 f5 hxg5 b5 exf5 a5 b4 Ra7 bxc5 b4 Nh3 Rb7 Ng1 Rb5 axb5 Bg7 Ne2 Bh6 Ng1 Bf8 Ke2 Kf7 Kd3 e5 Kc4 h5 f4 a4 g4 d6 c6 a3 g6+ Kf6 b6 e4 Kb5 h4 b7 a2 c3 e3 g7 d5 c7 d4 Kb6 e2 Rh2 e1B Bb5 b3 Na3 b2 Nc2 b1Q Rf2 Nd7+ Ka7 Nh6 g8B Qb4 b8Q Nc5 Bb2 Nd7 Nf3 Bg7 Ne5 Ba6 c8Q Qc7+ Qcb7 Qf8 Be6 Qg8 Ng6 Nb6 Be8 Bc4 Qf3 Bf8 Qd5 Bc5 Qh1 Kg7 f6+ Kh7 f7 Nf5 f8Q Ne7 Rh2 Bg3 f5 Be5 Qf7+ Kh6 f6 Kg5 Rf2 Rh6 Qh7 Rh5 f7 Bh8 f8B Rh6 Ne5 Rf6 Ng6 Rf3 Bg7 Rd3 Be5 Rh3 Bg3 Bb3 Rf6 Bd5 Raf1 Bc4 Be1 Bb3 R1f2 a1Q+ Ba3 Qd1 Bb2 Qb1 Na1 Ba2 Qf7 Qg3 Qe5+ Qf5 Qe2 Qc7 Qb5 Qd3 Ne5 Qg3 Rh6 Qf3 Qh5+ Kf4 Ng6+ Kg3 Rh7 Nf5 Rd7 Ne7 Rd6 Qd3 Rc6 Na4+ Rb6 Bb4 Ra6 Nb6 Qh6 Ba3 Qhh5 Bc5 Rh2#
qb2nkq1/N1p3rP/B2Q2P1/1R4B1/2pn4/1NK2nNR/2PNrr2/4RQR1 b - - 0 1 illegal: Other
2rBn3/p2K2RB/2p2RBr/P3NR2/2QR2q1/P1b4P/k2qbb1q/B4QN1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 f4 h5 fxe5 h4 a4 Na6 g3 Nb4 gxh4 Nc6 h5 Nd4 Nc3 Nb5 Nb1 Na3 bxa3 Be6 Nh3 Bd7 Ng1 Bc8 Kf2 Ke7 Kg3 g5 d4 b5 e4 f5 d6+ Ke6 a5 g4 Kf4 c6 h3 g3 d7 b4 h6 b3 d5+ Ke7 e6 Kd6 e7 Kc5 Ke5 f4 Ke6 g2 e8B b2 e5 f3 h7 f2 d6 Qh4 Bg6 Be7 Nd2 b1Q Bfd3 f1Q Bb2 Nh6 Ndf3 Rf8 h8R Nf5 Rg8 Qfe1 Rg7 Qd2 Qf1 Ba6 d8R Qg4 Kd7 Rc8 e6 Bf6 e7 Qa2 e8Q Rh8 Qe4 Bc3 Ne5 Rh6 Rb1 Bc4 Ba1 Bb5 Bc2 Be2 Rb4 Qb2 Rd4 Qb8 Rdg8 Kb5 Rf7 Ng7+ Rf5 Ne8 Rg7 Kc5 Ke7 Qb2 d7 Qa2 d8B Kb5 Ngf3 g1B Kd7 Bf2 Ng1 Kc5 Bb3 Qab2 Bg8 Qb8 B8h7 Kb5 Nc4+ Ka4 Ne5+ Kb3 Rh2 Ka2 Rg2 Be1 Rf2 Qbb2 Rf3 Bf2 Qd3 Qgg5 Rf6 Qg4+ R3f5 Qb8 Nf7 Qbg3 Ne5 Qh2 Qc4+
r5Rk/r2Q3p/nB1KNNBn/2rP4/p3NNQ1/P1n4P/1b1R4/q2R1Rq1 b - - 0 2 legal: proof: f4 c5 g4 f5 b4 e5 fxe5 d5 bxc5 f4 e4 Qf6 exd5 Bf5 gxf5 Qd8 Ke2 Kf7 Kd3 a5 Ke4 g5 c4 Kg7 d4 b5 d6 b4 Kd5 a4 f6+ Kf7 h3 b3 a3 f3 c6 b2 c5 g4 e6+ Kg6 d7 f2 c7 g3 c8Q g2 e7 Ra6 e8N Qe7 d8R Nd7 f7 Ne5 c6 Qb4 c7 Qc3 Nf6 Kg7 Ne2 g1Q Qd7 Bd6 c8R Ng4 f8N+ Be7 Nf4 Ra7 Bd3 f1R Bg6 Ne5 Be3 Nh6 Nd2 b1N Q1g4 Nc6 Nde4 Rc1 Rc7 Nb8 Rh2 Rg8 Rd2 Kh8 N8e6 Na6 Rf8 Bd8 Kd6 Qb2 d5 Rc5 Rf7 Nc3 Rad1 Qa1 Rb7 Rf8 Rbb1 Bb6 Rg7 Rfa8 Rf1 Ba5 Rbd1 Bd8 Ne8 Bf6 Bf2 Bd4 N8f6 Na2 Be3 Bb2 Bf2 Nc3 Be3 Rcc8 Bb6 Rc5 Rg8+
3b4/Q3p1RN/Q1bqR1Rk/1b2r3/nN6/1KBRPBnP/2Q1Q1Pp/q2q4 b - - 0 1 illegal: No possible last move, all moves rejected
1K1Q1bR1/2p5/N4q2/3Nn2Q/P2RP1R1/1BB3B1/knPq1Bp1/rqn1R2r b - - 0 1 illegal: No possible last move, all moves rejected
k7/1N1BKQ2/nn1P2B1/p3R3/1NRbq1rR/2PnpnB1/4PRQ1/B4nr1 b - - 0 1 illegal: No proof kernel
r2kQN2/Q2rr2Q/b2p1P2/n1n5/1RR4P/rqBP1Q2/3p2KN/1N1B1Nn1 b - - 0 1 illegal: Other
7B/rqR3n1/2p3B1/8/pRPq3k/2nBQQr1/2BQ1P1P/nQNbnK1N b - - 0 1 illegal: No proof kernel
3Q1b2/n1BB1q1Q/PP3R1p/1q2Rq1n/p1Rq2k1/r1Rb2N1/3K3P/QN3Q2 b - - 0 1 illegal: No proof kernel
QNR3bb/nQp2Pn1/3pB3/2kN4/1qNR1Rr1/B2KPNbR/2P2q1b/8 b - - 0 1 legal: proof: g4 e5 h4 a5 d4 b5 dxe5 g5 a4 f5 gxf5 g4 axb5 Ra6 Rh2 Rg6 Rh1 Rg5 hxg5 Be7 Kd2 Ba3 Ke1 Bf8 Kd2 Ke7 b4 h5 f4 a4 g6 g3 e3 g2 g7 d6 e6 h4 f6+ Ke8 e7 Kd7 e8R a3 b6 Kc6 b7 a2 b5+ Kc5 f7 h3 b6 h2 f5 Nc6 b8Q Nce7 f6 Rh7 b7 Be6 Nf3 g1B Na3 Rh4 Bc4 Nf5 Kd3 Rg4 Qa8 Nge7 b8N Nc8 g8N Na7 Ne7 Bg7 f8R Bh8 Nd5 Bg8 f7 Qf6 Re4 Bf2 Rf4 Ng7 Rc8 Bg3 Rb1 a1B Rb4 Bb2 Qg1 Be5 Qg2 Qh4 Bb3 Qf6 Rbd4 Qh4 Nc4 Qf6 Re1 h1Q Qb7 Qhh6 Rh1 Qhh4 Rh3 Bh2 Qh1 Qe1 Ba3+ Qb4 Ba4 Qh4 Bd7 Qf2 Bf5 Bf6 Be6 Bh4 Qb1 B4g3 Qb3 Bh4 Qa4 B4g3 Qaa6 Bg1 Qa8 B1h2 Q6b7
NN2b1K1/3QQ1p1/1BRBP2B/pn6/P1k1P3/1R1R1b2/b1r1r2b/1R2rn1B b - - 0 1 legal: proof: g4 e5 d4 b5 f4 h5 fxe5 b4 e6 b3 gxh5 Nf6 e4 Qe7 cxb3 Ng8 b4 Qd6 b5 Qe5 dxe5 Bc5 Qd2 Be7 Qd1 Bf8 e7 c5 Kf2 d5 Ke3 Kd7 Kf4 Ke6 Kg5 a5 e8Q+ Ne7 h4 f5 a4 d4 b4 d3 b6 f4 b5 f3 h6 d2 h5 f2 b7 c4 b6 c3 h7 c2 h6 Rg8 h8R Bd7 h7 Bb5 Bg2 f1B Ne2 Ba6 Na3 Ra7 Rh3 Bd3 Nb5 Nc6 b8B Nb4 b7 Na6 Bh1 Nc7 Rb1 Bc4 Qf7+ Kd7 e6+ Kc6 Ned4+ Kc5 Nc6 Ned5 Kg6 Bd6 Qe7 Ne3 Kf7 Rc8 Rd8 Ba2 h8R Bfc4 Rd7 Nf1 Rhb3 Bd5 Rhh3 Rh8 Rhe3 Rh2 Kg8 Re2 Rd8 Ra8 Rc8 Ra6 Ba7+ Rb6 b8B Re1 Rf3 Kc4 R3b2 Bh2 Ra3 Rb7 Bc5 Rb6 Ba7 Rb7 Nb8 Bc6 Rf3 Be8 Ra3 Nd5 Rc6 Nc3 Nc7 Rb4 Na8 Nb5 Rg3 Rb3 Bab6 Rbe3 Rb3 R3e2 Bb2 c1R Be5 Ne3 Bf4 Rc2 Bh6 Nf1 Qc1 d1B Qd2 Rf2 Qdd7 Bg4 Rge3 Bf3 Red3 Rfe2 Bd6#
NR1Nrb2/7b/Bn5P/4p1Pn/p1Q3PR/q1b1KBpk/4B3/BQrQQ3 b - - 0 1 illegal: No possible last move
1r1kNRnR/b7/nNNB1Q1P/p2nR3/bR6/1BP2N1P/pr5p/q1Q1K3 b - - 0 1 illegal: Other
2B5/4r2P/1k1R2rQ/2b1b2R/nNpB1n1Q/1Q1p1Kp1/B1P3PN/1qrB3Q b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 Nc6 axb5 Nb8 f3 Ba6 Qd6 Bb7 Qd1 Bc8 e4 h5 e6 h4 e5 h3 Qd3 Bb7 Qg6 Be4 fxe4 Be7 Qh7 Bd6 Nxh3 Be7 Ng1 Bf8 Ke2 f5 b4 d5 h4 a5 h5 c5 h6 g5 b6 f4 b7 g4 e7 Kd7 e8B+ Ke6 b5 a4 b6 g3 Bf7+ Kd7 e6+ Kc6 e5 a3 e7 a2 e8B+ Qd7 e6 d4 e7 d3+ Kf3 Ra3 Be3 Bg7 Be2 Bd4 Bd1 Nf6 Rh5 Be5 Nc3 Bd6 Nd5 Ra7 Bd4 Na6 b8Q Rg8 b7 Rg6 Nb4+ Kb6 Qd8+ Qc7 Qg7 Nd5 b8Q+ Rb7 Rb1 a1B Bd7 Bc3 e8Q Bf8 Ke4 f3 h7 f2 Kf3 Nf4 Qh6 Be7 Bc8 f1R+ Ke3 Bd6 Qh4 Qd7 Rb3 Qb5 Nf3 Be5 Ke4 Be1 Bd5 Bf2 Nh2 Bg1 Qf7 Be3 Qa8 Re7 Rc3 Re1 Ba2 Rf1 Qb3 Re1 Bf3 Rc1 Bd1 Bf2 Kf3 Bg1 Rc4 Bf2 Bb2 Bg1 Re4 c4 Rd4 Nc5 Rd7 Na4 Rd6+ Kc7 Qe4 Bc5 Bd4 Qb6 Qe1 Qb5 Nc6 Kb6 Qh1 Qb4 Qc3 Qb1 Nb4+ Kb5 Qb3 Ka5 Rd8 Kb6 Rd6+
1nq1nb2/2Q2rBp/kr1R2RP/4PBB1/2N2R1P/K2pr3/2Bb1Qp1/1R1N4 b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 e5 fxe5 b4 h4 b3 axb3 Ba6 b4 Bc4 b5 Be6 Bh6 Qb6 Bc1 Bh3 gxh3 Qd8 Kd2 f5 Kc3 a5 Kb3 g5 e4 d5 c4 Kd7 b6 Kc8 b7+ Kc7 h5 f4 h4 f3 h6 d4 c6 Kb6 c7 f2 c8R g4 c5+ Ka7 e6 g3 c6 g2 e7 a4+ Ka3 Qb6 b4 Qd8 e8R Kb6 c7 Qf6 Nf3 Ra7 Qd2 Qg6 Nc3 Qg3 Re6+ Qd6 Rg6 Bg7 Rd8 Na6 b8Q+ Rb7 c8B Nc5 b5 Qc6 Nd1 Na6 Ne5 Bf8+ Rdd6 Nf6 Rb1 Ne8 Bd3 f1R Bc2 Rf7 Bf5 d3 Rf1 Rg8 Qc8 Nb8 Qf2+ Ka5 b6 Ka6 Qd7 Qc8 Qc7 Rgg7 Bd2 Re7 Nc4 Rgf7 Bg5 Re6 Kb2 a3+ Kb3 a2 Kb4 Nc6+ Ka3 Rb8 b7 a1B Qe1 Ree7 Rf4 Bc3 Qf1 Bd2 Qf2 Ra8 b8B Re6 Ba7 Rb8 Bd4 Rb6 Bg7 Nb8 Bg4 Ref6 e5 Rf5 Re4 Rf3 Bf5 Re3 Rf4
b3R3/B3p1p1/nNr2N2/pn1KPQPQ/1b2QQ2/P3R2q/1r6/1k1BnBB1 b - - 0 1 illegal: No proof kernel forced: wxDB
4N2B/n1rP4/b1nQKP1N/2BrN1b1/2p5/Npp2BqB/b5RP/2Q1Rk2 b - - 0 1 illegal: Other
1R2BRQ1/NpQP3k/1RPPn3/2B4b/2N1K2B/p1rB1p2/1R2b1q1/1r1n2b1 b - - 0 1 illegal: No proof kernel
Bn3K1Q/b7/pQ1RP1p1/3qrRBP/NNQB1rn1/P4Qqk/4p1B1/6b1 b - - 0 1 illegal: No proof kernel
NB1NR3/R1p1p2B/2P1Pq2/2nB1n1q/NN1r2Qp/2K1BbP1/2b2Qr1/5k2 b - - 0 1 legal: proof: f4 d5 e4 g5 exd5 b5 h4 b4 hxg5 b3 axb3 Bg7 b4 Nh6 b5 Be5 fxe5 Ng8 d4 Kd7 Kd2 h5 b4 a5 c4 f5 g6 a4 c5 a3 d6 Ke6 c6 Kd5 d7 Ke4 d5 f4 g7 a2 e6 f3 g3 f2 b6 Rh6 b5 Bb7 d6 Rg6 Ne2 Kf3 Kc3 Rh6 Nd4+ Ke4 Be3 Ra7 Bg2+ Ke5 Qg4 f1B Bd5 Ba6 b7 Be2 b6 Bad3 Nc2 Ra4 Nb4 Qe8 d8N Bc2 d7 Na6 b8B Bf3 b7 Nc5 Rf1 Rh7 Rd1 Nh6 g8B Rf7 Bh7 h4 Rd2 Rf4 Rd1 Rd4 Rf1 Bg2 Rf8 Qh5 Re8 Ra6 Nd2 Bf3 Ne4 Nd3 Nc5 Nf5 Na4 Nc5 Ba7 Ra5 b8N Rb5 N8a6 Ra5 Nb6 Rb5 Na8 Ra5 Rb1 a1Q+ Rb2 Ra2 Bb8 Qf1 Rb1 Bce4 Re1 Rg2 Ra1 Bc2 Ra5 Nb7 Nc5 Qf2 Na4 Nc5 Ra7 Qf1 Qg5 Qf2 Bb3 Ke4 Qg7 Be2 Qg6 Kf3 Qg8 Bed1 Bd5+ Ke2 Qg4+ Ke1 Nb7 Kf1 d8Q Qf4 Qd7 Qfh6 Nd8 Bf3 Ba2 Rf4 Qd2 Rd4 Bd5 Qf6 Qf2+
4n1rQ/pp2b1rp/4k3/P2Rq1P1/qQ4n1/NR1BBQ1P/2N3b1/1QNN2K1 b - - 0 1 legal: proof: d4 c5 c4 e5 dxe5 g5 b4 d5 cxd5 g4 bxc5 g3 fxg3 Ke7 g4 Kd7 g5 Ke8 Kf2 Ke7 g4 f5 e4 f4 a4 f3 e6 Nc6 h3 Nb4 a5 Nc2 e5 Qc7 c6 Rb8 d6+ Kd8 d7 Ke7 d8N Qd7 g6 Qd6 g5 Bg7 c7 Qa6 Be3 Qd6 Na3 Qb6 Qb1 Ra8 Ne2 Qa6 Nc1 Qb6 Bd3 Qb5 Nc6+ Kf8 e7+ Ke8 Nb4 Kd7 e8N Bf8 g7 Be7 Kg1 Rb8 Nd6 Qc6 Ndc4 Qd5 Nb2 Ke6 Nd1 Bd7 c8Q Nf6 Qc3 Bc6 Ra2 Qe4 Rb2 Rbg8 Rb3 Ne8 Rh2 Qd5 Rd2 Qb5 Qc5 Qa4 Qc3 Na1 Nbc2 f2+ Kh2 f1Q Qb4 Qf4+ Kg1 Kd5 e6 Qe5 Qg4 Kd6 Qe2 Bg2 Qf3 Rf8 g8Q Rf7 Qg6 Rg8 Qge4 Rfg7 Qh4 Bf6 e7 Ke6 Ne1 Nc2 Qb4 Nd4 Nec2 Nf5 Be2 Nh6 Rd5 Ng4 Bd3 Nc7 e8Q+ Be7 Qef8 Ne8 Qf1 Rg6 Q1f3 R8g7 Qh8 Rg8 Qc5 R6g7 Qb4
3n2Q1/QB2pk2/RK1b3b/NbpN4/R1BP2pB/Pr1N2P1/5q1N/1r3B1r b - - 0 1 illegal: No proof kernel
1N3R1r/1n1p4/1pRP1r1B/2QN1qQB/2K5/bPn1p3/P2Q1RRQ/1rk4n b - - 0 2 legal: proof: e4 a5 g4 h5 gxh5 f5 exf5 b6 b4 Ba6 bxa5 Bb7 Nh3 Bd5 Ng1 Bb3 cxb3 Ra6 Bb2 Ra7 Bc1 Ra8 Ke2 Kf7 Kd3 Kf6 h4 Ke5 f4+ Kd5 h6 c5 h7 g5 a6 e5 h5 g4 h6 g3 f6 g2 a7 Qe8 f7 Qc8 f5 Ne7 f6 Qc6 Be2 Ng6 Nf3 g1N Rh2 Qa4 Nc3+ Kc6 Nd5 Kb5 Rg2 Nh4 Nd4+ Ka5 Rb1 Na6 Bh5 Nf5 Rb2 Ne2 Nc6+ Kb5 Rf2 Qa5 Nb8 Nc3 Qe2 Be7 f8R Ng3 f7 Nh1 Qg4 Bd6 Qg5 Be7 Rc8 Bf8 Rc6 e4+ Ke3 c4 Kd4 Be7 f8Q Ba3 Qfe7 Rf8 h8R Nc5 h7 Rf6 Rf8 Nb7 h8Q Bb4 d3 Ba3 Bf4 e3 Qd6 Ne4 Rg2 c3 Rbf2 c2 Qh7 c1R Qhf5 Rd1 Qh3 Re1 Qh2 Rb1 Qc7 Qe1 Qc8 Ka5 Kc4 Nc3 d4 Qd2 Qc7 Qc2 Qd6 Qf5 Qc5+ Nb5 Na6 Rc8 a8Q Re8 Qc8 Rd8 Nb8 Re8 Qe7 Nc3 Qe4 Rd8 Qc2 Re8 Qd2 Rd8 Ne7 Re8 d5 Rd8 Kd4 Kb4 d6 Re8 Rf7 Rh8 Rf8 Bb2 Nd5+ Ka3 Kc4 Bc1 Qg6 Bb2 Bh6 Bc1 Be2 Bb2 Qg5 Bc1 Qd1 Kb2 Qd4 Kc2 Qc5 Ba3 Bh5+ Kc1 Qc7 Nd8 Qa7 Nb7 Qaa5 Nd1 Qd4 Nc3 Qac5 Na4 Qd3 Nc3 Qd2+
Rnk3r1/2P1p2b/2Q4Q/b1p5/2N1PRPN/2B2q1N/pBnN1B2/1BKb3n b - - 0 1 illegal: No proof kernel
5Bqk/QN3prn/2pn2r1/p1Q2b2/B1B2N2/1PR2Rnr/1B3PP1/3KRR2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bf5 h4 Bc8 hxg5 Kd7 d4 Bh6 d6 Bf8 e3 Bg7 d5 Bd4 exd4 Ke8 d7+ Kf8 g6 Kg7 b6 a5 d6 e5 d5 h5 b7 h4 Nd2 c6 Ne4 h3 Ne2 h2 Qc2 Ra7 Qc5 Rh5 Nf4 Qf8 d8R Rf5 d7 Nh6 d6 Rg5 Kd1 Ng8 Bc4 Rh5 Rf1 Na6 b8Q Ra8 Qba7 h1N b3 Rh8 Bb2 Rh3 Re8 Rb8 d8B Kh8 d7 Nc7 Be7 Nf6 d8R Nh7 Rc1 Qg8 Bf8 Bf5 Nd6 Ng3 Rc3 e4 Nb7 Nb5 Rdd3 Nd6 Rf3 e3 Bb5 Ra8 Ba4 e2+ Kc1 e1R+ Kd2 Re6 Kd1 Ng5 g7+ Kh7 Re7 Rg6 Re6 Re8 Ree1 Re4 Nd3 Reh4 Nf4 Rg4 Be7 Qe8 g8B+ Kh8 Bh7 Qg8 Bf8 Rg7 Bg6 Nh7 Bh5 R4g6 Bg4 Bb1 Be6 Bf5 Bc4
7n/N4N2/1Bq1qNrp/R4R1P/B2B1Q1P/1p3N1K/pbbP1B2/k1rQ2q1 b - - 0 1 illegal: No proof kernel
2B2r2/B3r3/qbN3K1/2pkrPR1/1pB1q3/bPQBR2p/N6P/2n1NQN1 b - - 0 2 legal: proof: f4 b5 c4 f5 a4 d5 cxd5 e5 g3 b4 fxe5 f4 g4 Bf5 gxf5 Nc6 Bh3 Nd4 Bf1 Nb5 axb5 Rc8 Ra3 Rb8 Ra1 Ra8 Kf2 Kf7 Kf3 a5 Kg4 g5 Kh5 g4 d4 a4 e4 f3 b3 c6 d6 a3 d7 f2 e6+ Kf6 b6 a2 e5+ Ke7 d5 g3 b7 h6 b8N g2 Bd3 f1Q Kg6 h5 Nc3 h4 Be3 h3 Ba7 Rh7 Na6 Qa5 d8N Nf6 d6+ Ke8 d7+ Ke7 Nc5 Qf2 Qf1 Qe3 Re1 a1R Na2 Qe4 Re3 Ng4 Bb6 Bh6 Ba7 Kf8 e7+ Kg8 e8B Re1 e6 Kf8 Nc1 Ke7 Na2 Kd6 e7 Qa6 Bf7 Re2 e8B Nf2 Bfc4 Ke5 Bb5 Re7 Bf7 Bg7 Be6 Kd4 Ndb7 Re1 Na5 Rf8 d8Q+ Ke5 Bd7 Kd5 Qc7 Bb2 Bc8 Re5 Qg7 Ba3 Qf6 Re7 Qc3 Re5 Bb1 Re7 Nd3 Re2 Ne1 Nd3 Bc2 Nc1 Bcd3 Qf4 Rg3 R2e5 Rg5 Qe4 Ne2 g1B Qg2 c5+ Nc6 Bf2 Rf1 Bg3 Ng1 Bf4 Rf3 R5e6+ Qf6 Bb8 Re3 Bc7 Qf1 Bb6 Na5 Qh4 Nc6 Re4 Qb2 R4e5 Qc3 Qe4 Bbc4+
4r1RQ/BpR2q2/5pN1/5pQP/1n2qPnQ/3N1B1R/Rb1r3P/1kqQ3K b - - 0 1 illegal: Other
8/2r1p2k/3rP1BN/pQ1Rq2n/1qp2P2/4nP1K/QN1BbNRR/R4q1N b - - 0 1 legal: proof: h4 b5 c4 g5 a4 f5 axb5 d5 cxd5 f4 g3 g4 gxf4 Bh6 Ra3 Bd7 Ra1 Bg5 hxg5 Bc8 e4 Kf8 b4 Kg7 d4 c5 b6 a5 b7 h5 e5 c4 g6 g3 e6 g2 f3 h4 Kf2 h3 Kg3 h2 d6 Na6 b8Q Bb7 d7 Qc8 d8R Rh7 d5 Rh8 b5 Nh6 b6 Qc5 d6 Ra7 d7 Ng8 Bd2 Qe3 Ne2 Qb3 Nbc3 Kh6 g7 g1Q+ Kh3 Qa4 Ne4 Qb5 Qa4 Kh7 Qa2 Qb4 N2g3 Kh6 Nf2 Bc6 b7 Kh7 Bd3+ Be4 Qe5 Qe1 b8N Qe2 Qb5 Nc7 Na6 Nd5 Nc5 Rc7 Na4 Ne3 Nb2 Nf6 g8N Nh5 Nh6 Rf8 Bc2 Bd3 Re8 Rf5 d8R Rd5 Rg8 Rd6 Rg5 Qe1 Rd5 Qe2 Rhg1 Qe1 Rg2 h1Q+ Rh2 Qhg1 Ngh1 Qg7 Rf8 Qe5 Rg8 Qc1 Rgg2 Qf1 Bb3 Be2 Bc2+ Kh8 Bg6 Kg7 Be8+ Kh7 Bg6+
B1n1QKN1/5B2/1Qp1qr1P/q1rB2BR/1RPN4/kp6/pP1n2q1/b1R4R b - - 1 2 illegal: Other
n1B1R2B/1Q2KRNP/p3bR2/P1Brpb2/1n2P3/k1pqB1n1/1q3Q2/6NR b - - 1 2 legal: proof: d4 b5 g4 h5 gxh5 c5 c4 a6 cxb5 c4 f4 Ra7 Na3 Rc7 Nb1 Rc5 dxc5 Qb6 Qa4 Qc7 Qd1 Qd8 f5 e6 Bf4 Ke7 Bh6 Kf6 Bc1 Ke5 f6 Be7 fxe7 Kf6 Kf2 Ke5 Kf3 f5 e8R g5 b4 d5 h4 f4 Kg4 c3 a4 f3 e4 f2 b6 d4 b7 d3 c6 Kd4 c7 Kc4 a5 Qd6 h6 Qc6 h5 Rh7 b5 Kb4 b6 d2 Bh3 f1Q Qf3 d1B Be3 Re7 h7 Rf7 h8B Bd7 c8R Rf5 h6 Ne7 h7 Qcb5 Rc7 Qfd3 Na3 Nc8 Nc4 Rd5 Nd6 e5+ Nf5 Nc6 b8Q Bb3 b7 Nb6 Rf1 Ka3 Qf2 Na8 Qa7 Nb4 b8B Be6 Rf7 Ba4 Kh5 g4 Kg6 g3 Kf6 g2 Ke7 Bb3 Ng7 Bf5 Bd6 Bc4 Ne2 g1N Qb7 Bb3 Bdc5 Ba2 Nd4 Ne2 Nf3 Ng3 Ng1 Rd4 Qd2 Bae6 Rf4 Rd5 Qf2 Bg4 R4f6 Bgf5 Bg4 Qb1 Bd1 Qb2 Ba4 Q5e2 Bd7 Qd3 Bc8
3Bb2R/RpnQb1q1/R1p4R/Bp4n1/P6k/qBN2B2/1PN1KP1r/5Q1n b - - 0 1 illegal: Other
Q7/p1nkQ2P/N2Br1b1/p1B3P1/2qnp1r1/K4R1R/P1QBB3/N3Q1qn b - - 0 1 illegal: Other
kN6/2p2P2/2n1RP2/Q1BqQ3/1pBnr2r/1R2pQK1/2P2RN1/Rbr2q1Q b - - 0 1 legal: proof: g4 a5 h4 g5 b4 f5 gxf5 d5 bxa5 g4 e4 Bh6 exd5 Bg5 hxg5 Bd7 Bc4 Be6 Bf1 Bc8 d4 Kd7 a4 h5 f4 b5 Kf2 e5 f6 b4 f7 h4 d6 Kc6 d5+ Kb7 g6 h3 d7 h2 a6+ Ka7 f5 e4 a5 Nf6 d6 Re8 g7 Ng8 f6 Nh6 g8R Re7 Qf3 Nc6 Nd2 Re5 Ne2 Rh5 Nf4 Rd5 Ng2 Re5 Bc4 Rg5 Re8 Bb7 Rf1 h1Q Nb3 Rh5 Re6 Kb8 Kg3 Ng8 Nc5 Ka7 Be3 Nh6 Rf2 Rh4 Bd4 Qh8 d8Q e3 d7 Qf1 Qe7 Re8 d8R Qg7 Rdd6 Qg5 Nd7+ Ka8 a7 Qd5 Nb8 Bc8 Bc5 Nf5+ Kf4 Nfd4 Kg3 Ba6 Rd8 Bb5 Qd6 Ba4 Qe5 Bb3 Rdd6 Ba2 Rd8 Bb1 Rdd6 Qe4 Rd7 Nb3 Rd3 Nbd4 Rb3 Qd5 Rd6 Reh8 Re6 R8h5 Qee4 Re5 Qef5 Re4 Qe5 Kb7 a8Q+ Kc8 Qa7 Qd1 a6 Ba2 Be2 Qd3 Nf4 Bb1 Kg2 g3 Qb6 Qb5 Qa5 Qbc4 Qa3 Qb5 Qc1 Qbc4 a7 Kb7 Qh1 Qd3 Kg1 g2 a8Q+ Kc8 Qa5 Kb7 Bf1 Qa6 Be2 Ka8 Bd3 Rg4 Kh2 g1R Kh3 Rc1 Ng2 Rgf4 Kg3 Rh4 Ba7 Qac4 Be2 Qd3 Bf1 Qd1 Bc4 Qf1 Bc5+
KRB2r2/p1bNbbB1/1R2N2n/3QN2p/k1B3r1/2pP4/2PPnB1N/2Q2n2 b - - 0 1 legal: proof: g4 d5 h4 b5 a4 g5 axb5 d4 hxg5 d3 exd3 Nd7 f4 Nb6 f5 Bg7 g6 Bf8 g5 Qd6 g7 Qg6 fxg6 Nd7 Ra4 Nb8 Ra6 Nd7 Ra1 Nb8 Ke2 Kd7 Ke3 c5 Ke4 h5 Kd5 e5 b4 f5 b6 e4 b5 c4 b7 f4 b6 e3 Ne2 f3 Ra6 f2 Bb2 Ba3 Nd4 e2 Ne6 e1B Qc1 Bd6 Na3 Nh6 g8N Bc7 g7 Bd6 g6 Nc6 b8B Bh2 b7 Bc7 Nf6+ Ke7 g8Q Bf4 g7 Be5 Bh3 f1N Rb6 B1g3 Ng4 Kd7 Nh2 Bf6 Bd4 c3 Nc4 Bg5 Bbe5 Rb8 Bf2 Bd8 Bed4 Bgc7 Ne5+ Ke7 Kc5 Rh7 Kb5 Kd6 Ka6 Be7 Qf7 Bd7 g8B Rf8 b8N Be8 Kb7 Rg7 Ka8 Rg4 Nbd7 Kd5 Qf5 Bg6+ Rb8 Bf7 Rg1 Re4 Rg6 Rg4 Nef3+ Kd6 Bg7 Nd4 Qa5 Kc6 Qa2 Bb6 Nfe5+ Kb5 Qd5+ Ka4 Nd8 Ba5 Rgb6 Ne2 Ne6 Rg2 Bf5 Rg4 Nf4 Nfg3 Qg2 Bd6 Rb1 Bab4 Nf6 Be8 Bc4 Nf1 Qd5 Bbc5 Bc8 Bc7 Nfd7 Be7 Ne6 Bf7 R1b6
R2rnQ2/2p2P1Q/R7/n1NPb3/3B1Qp1/p1K2kP1/B5nn/RQNq2Rb b - - 0 1 legal: proof: e4 d5 a4 a5 c4 b5 axb5 f5 cxd5 g5 exf5 g4 h4 Ra6 Ra4 Rg6 Ra1 Rg5 hxg5 Bd7 Ra2 Be6 Ra1 Bc8 d4 Kd7 Kd2 Kd6 b4 h5 f4 e5 g6 h4 g3 h3 b6 h2 f6 a4 f5 e4 b5 a3 b7 e3+ Kc3 e2 g7 e1N f7 Qh4 f6 Rh6 b6 Nd3 Qf3 Rg6 Be3 Nb4 Nd2 Nc2 Bc4 Ne1 Ne2 Nc6 b8R Ng2 b7 Na5 Rhg1 h1N Nc1 Nf2 Ra8 Nh3 b8Q Ng5 Ba2 Bb7 Ndb3 Qh1 Nc5 Bc6 Qf2 Nf3 Ra6 Nh2 Qb1 Rh6 Qff5 Rh8 Qf1 Be7 f8R Bd8 f7 Bf6 Rfa8 Be5 Qf4 Nf6 g8Q Ne8 Qgh7 Ng7 Qf1 Rd8 Qc4 Ne8 Qcb4 Ke7 d6+ Kf6 Bf2 Kg5 d7 Be4 Qh3 Kf5 Qc4 Bd6 d5 Bf4 Bd4 Be5 Re1 Qf1 Qa4 Qe2 Rg1 Qd1 Qh6 Rb8 d8Q Rc8 Qdd6 Rd8 N5d3 Bf3 Qdf8 Ke4 Qh4 Be2 Qhh6 Kf3 Nc5 Bd3 Qab4 Be4 Qh7 Ne3 Rb8 Kf2 Rba8 Bh1 Q4b2+ Kf3 Qd2 Ng2 Qf4+
1r5N/qR4pB/b1pKp2P/b3PQ1b/rQ3Bkn/2NR1R2/2N2RPb/4N3 b - - 1 2 legal: proof: c4 b5 f4 d5 cxd5 h5 a4 e6 axb5 h4 f5 h3 f6 Kd7 Qc2 Nc6 Qe4 Nce7 fxe7 Ba6 Qh7 Bb7 Nxh3 Ba6 Ng1 Bc8 Kf2 a5 Kg3 f5 Kf4 a4 Ke5 a3 e8N f4 h4 c6 b4 f3 d4 a2 e4 f2 b6 Be7 h5 Ra7 h6 Nf6 b5 Bb4 d6 Ng8 d5 Ra3 b7 Ra7 b8Q Bc5 b6 Qh4 b7 Ra8 Nc7 Qg3+ Bf4 Qg4 Nc3 Ne7 Bd3 f1B Rh3 Ra5 Rf3 Be3 Qf5 Rb5 Na6 Re8 Nb4 Be2 Raf1 a1B Nc2 Bb6 R1f2 Kd8 d7 Ra5 Qd6 Ra4 b8R Ba5 Qb4 Ng6+ Kd6 Nh4 Rb7 Qg6 Rh3 Bd1 Nf3 Qf7 Nfe1 Bh5 Rhf3 Rh8 Kc5 Ke7 d8N+ Ke8 d6 Bb2 d7+ Ke7 Qd5 Kf6 Kd6 Rf8 Rb6 Ba6 Rb7 Qe8 Nf7 Qa8 d8R Qa7 Rdd7 Rb8 Nh8 Bc1 Be5+ Kg5 Bf4+ Kg4 e5 Rc8 Bh7 Rb8 Qde4 Be3 Ke7 Bd2 Rdd3 Be3 Kd6 Bd4 Re2 Bg1 Ref2 Bh2 Qf5+
K3Q3/2N1B2Q/nqB1pbP1/3ppQ2/N1bPRB2/1QP2nR1/2kb1b2/B1r5 b - - 0 1 illegal: Other
1bR1K2N/6r1/p2Bn1B1/BP1qR2b/P2bb2p/1rRN3P/4p2Q/kQ2R2B b - - 1 2 legal: proof: e4 d5 exd5 b5 c4 g5 cxb5 Bf5 f4 Bg4 fxg5 Bc8 Kf2 Kd7 Ke3 Kd6 Ke4 Kc5 Ke5 Kb4 a4 h5 d4 c5 g4 f5 g6 f4 g5 h4 g7 c4 h3 e6 d6 f3 d5 f2 b6 a6 g6 c3 b7 c2 d7 Kb3 d6 Rh6 Ra3+ Kb4 Ne2 Kc4 b4 Ne7 Kf6 e5 Kf7 e4 g8B e3 b5 Qa5 d8B Qb6 g7 Bf5 d7 Rh7 Bg2 f1B Nf4 Nd5 Nc3 Qd4 Ba5 Bc5 d8R Nc6 b8Q Be4 Re8 Be2 Re5 Bh5+ Ng6 e2 Ke8 Nd8 Re1 Ne6 Na2 Nc3 Bf7 Qd5 g8R Bd4 Nh8 Rg7 Bf4 c1B Bh1 Nb1 Bg6 Bce3 Bh2 Bf4 Nc1 Raa7 Rf3 Rad7 Nd3 Rdf7 Qd2 Kb3 Qc1 Ka2 Rf5 Rc7 Ne5 Ng5 Kf8 Rc2 Rc3 Rb2 Nd3 Nf7 Ke7 Rb3 Rgc8 Ka1 Ke8 Bg3 Qbf4 Ng5 Qf2 Bb8 Bd6 Ka2 Re5 Ka1 Qh2 Ne6 Qxb1+
2Q1rr1R/2p1N1RN/pnN1Bp1K/q4rn1/PQ6/P1B2Rkb/1N4P1/6rR b - - 0 1 legal: proof: f4 e5 fxe5 g5 c4 d5 cxd5 g4 a4 Ba3 bxa3 g3 hxg3 Na6 g4 Nb8 g5 Ke7 Kf2 Kf8 Ke1 Ke8 Kf2 Ke7 Ke3 b5 Kf4 h5 d4 b4 e4 a6 d6+ Ke6 g6 h4 d7 h3 g7 h2 d5+ Ke7 Kg5 b3 e6 Kd6+ e7 Ke5 d6 b2 Nd2 b1R Bc4 Ra7 Qb3 Nh6 g8N Qf8 d8N Bg4 e8R+ Be6 d7 Rh7 Ngf3+ Kd6 e5+ Kc5 Ne7 Bh3 e6 Kd6 Bb2 Re1 Ndc6 Ra8 d8Q+ Nd7 Qc8 Nb6 Bc3 f6+ Kg6 Re3 Ng5 Nf7 Raf1 Rh5 Nh7 Rf5 Rf3 Ng5 Qb2 Qh8 Rg8 Rb8 Rg7 Qd8 Rg1 h1R Kh6 Qg8 Rb1 Rg1 Qb4+ Rc5 Nd5 Rh1 Qb7 Qc8 e7 Qf5 e8R Rd8 Reg8 Rf8 Bb3 Ree8 Qc8 Rf1 Rh8 Rd1 Nd4 Ke5 Nc4+ Ke4 Ne7 Re1 Re3+ Kf4 Nb2 Rh1 Be6 Rd5 Re2 Kg3 Ndc6 Rf1 Rbe1 Rd1 Rd2 Qa5 Rd3+ Rf3 Rh1 Rg1 Rd4 Rf5 Rf4 Nc4 Rf1 Nb6 Rf3+
BQ1r2b1/2npQBb1/2bNpp1B/PNR1k3/2R3B1/1NP1b3/4qP2/rN4K1 b - - 0 1 illegal: No possible last move
6k1/1p3N2/4b2r/4RPKp/1Q2RnQP/1P1BRBpr/2bRB1Nr/1q4Br b - - 1 2 illegal: No proof kernel
3r2qB/pk2B1p1/6PR/QKR1Q2n/n1N3Pp/R3nB2/P2b2N1/b1RB3n b - - 1 2 illegal: No proof kernel
1k4bb/nNpP4/1p1R2R1/pB2Q1P1/3Nn1r1/nN3NB1/P7/rB1BnQ1K b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 h4 d5 hxg5 d4 b5 d3 cxd3 Nc6 d4 Nb8 d5 Qd7 Qg4 Qd6 Qd1 Qa6 bxa6 Kd8 Nh3 Kd7 Ng1 Ke8 d4 Kd8 f4 h5 Kf2 e5 g4 h4 Kg2 b6 d6 e4 a7 e3 g6 e2 g7 Bb7+ d5 Kc8 g5 Nf6 g8B Ba6 d7+ Kb7 d8N+ Kc8 d6 Ne4 f6 Rh6 f7 Be7 f8N Bb7 f5 Rg6 f6 Nc6 f7 Re6 Nf3 Nb8 Qd4 Re5 Bh7 Nc3 Bf4 Re4 Qe5 Nb5 Bg3 Rg4 Nfe6 Na3 f8Q Bf6 Nd2 Bh8 Rd1 Nc6 Nb3 e1N+ Kg1 h3 Ned4 Ba6 Bb1 Bc4 Qff6 Rb8 a8B Bg8 Bb5 Na7 Bae4 Ra8 d7+ Kb8 Nb7 h2+ Kf2 Bd5 Bec2 Bg8 Rf1 h1N+ Kg1 Nf2 Qf7 Nfd3 Kh1 Nc5 Rd3 Ne4 Bd1 Bf6 Rf2 Bg7 Rc2 Bh8 Rc6 Nac2 Qc4 Nd6 Qee6 Na3 Bdc2 Ng2 Nf5 Nac8 Rd1 Ka7 Qf1 Rb8 Rd5 Ka8 N5d4 Na7 Qf5 Re8 Qf4 Re2 Qe5 Ne4 Rg6 Re1 Rdd6 Rc1 Bd1 Ne1 B1d3 Ra1 B3c2 Kb8 Bb1
1nRn2K1/P2k4/3Nppn1/4P3/R1Nq2Q1/1q1B2Bb/BR1p1P2/nr1R1Q1B b - - 0 1 legal: proof: d4 a5 b4 c5 dxc5 f6 bxa5 b6 g4 Nh6 g5 Ng8 g6 Ra6 Ba3 Ra7 Bc1 Ra8 h4 d6 Be3 e6 Bd4 b5 Rh2 Ra7 Bb2 Rf7 gxf7+ Kd7 Rh1 g5 Bc1 g4 Qd2 Bh6 Qd1 Bg5 hxg5 Qe8 Nc3 Qf8 Nb1 Qd8 f8R h5 a4 d5 c4 h4 e4 g3 Ke2 b4 Kf3 g2 Kg4 h3 g6 h2 g7 b3 c6+ Ke7 c5 d4 e5 b2 c7 d3 a6 Bb7 c8R Bc6 a7 Bb5 a8B Rh6 c6 Qd7 c7 Qd8 a5 Qd7 a6 Rg6+ Kh5 Bc6 a7 Nh6 g8Q Qd4 Ra4 Bd5 Bf4 d2 Nh3 g1N Na3 b1Q Bg3 Be4 Nc4 Bg2 Bd3 Nf7 Ng5 Ne2 Qf1 Kd7 Ne4 Nd8 Ned6 Bh3 Bd5 Qb3 Re8 Rg4 Kh6 Nf4 Kh7 Ng6 Rg1 h1N Qg7+ Nf7 Kg8 Re4 Rf8 Re1 Rfe8 Rb1 Rf8 Nh4 Qg4 Nd8 Re8 Nbc6 Rb8 Ng6 Rb5 Nb8 c8B+ Kc7 Bcb7 Kd7 Bh2 Ng3 Ba8 Qa2 Rb2 Ne4 Bg3 Nc5 Bh1 Nb3 Bad5 Na1 Rf8 Nb7 Rc8 Qa3 Ne3 Nd8 Ba2 Qb3 Nec4 Qdc3 Qg2 Qd4 Rd1 Qdb6 Qg1 Qd4 Qf1
N7/1p4Kn/2k1pPBN/PbB1b1p1/BR1Q3Q/1n1PrN1N/p2Rr3/2qB4 b - - 0 1 illegal: No proof kernel
2Q1QR1r/p2PpB2/1B6/rNR2kp1/1N1pB3/1R2PKB1/1qb1P3/nrn1R3 b - - 0 1 illegal: No proof kernel
R1K5/ppb5/2P1Q1b1/2B2Bb1/1R2R1Bk/P1n1pN1q/1p1P1BQR/2N1r2r b - - 0 1 illegal: Other
KBR5/N2r4/N5RB/1B2q3/1k1ppN1Q/bNp1qp1Q/P3PPb1/nn4B1 b - - 0 2 legal: proof: d4 a5 g4 b5 b4 h5 bxa5 c5 gxh5 Ra7 c4 Rc7 cxb5 c4 Bg2 Na6 Bf1 Rc5 dxc5 Nb8 Kd2 e5 Ke3 Ke7 Ke4 f5+ Kd5 g5 h4 f4 h6 f3 h7 c3 a6 d6 h5 g4 a7 g3 a8N g2 b6 e4 h6 Qc7 b7 Nc6 b8B Bb7 Nd2 Na5+ c6 Nc4 Nb3 Bc8 Nh3 g1Q Nf4 Ba6 Bh3 Ne5 Qf1 Qg2 Bd7 Qg5 Qh3 Bc8 Rb1 Qa7 c7 Qe3 Rg1 Nc4+ Kc6 Qe5 Rg6 d5 Be8 Be6 Kb7 Kd6 Bb5 Ne7 Rb2 Rg8 h8Q d4 h7 Nc6 Rb1 Nd2 c8N+ Kd7 Qh4 Ba3 Nc7 Bh3 Ka8 Rg7 Na7 Bg2 Na6 Rf7 Rb2 Nb1 Qh3+ Ke7 Bd2 Na5 Qf6+ Kf8 Qfh4 Rd7 h8B Kf7 Bg7 Ke8 Bh6 Kf7 Nbc5 Nb3 Bc1 Na1 Rb4 Qf6 Rc4 Ke7 Nb3 Qg5 Rc7 Qf6 Bd2 Kd6 Rc8+ Rc7 Ne6 Qe5 Bf4 Kd5 Bh2 Rg7 Bg1 Rd7 Bc6+ Kc4 Bc1 Qd3 Bh6 Qd2 Nf4 Qe3 Nc7 Kb4 Ba4 Rd5 Bb5 Rd7 Na6#
Q7/R1pB4/1pQ1Q2n/2rBb1N1/1p1nP3/1bP1k3/pKPnrB1R/QNB5 b - - 0 1 illegal: Other
Q3q1N1/2Q4b/1p2rqp1/pR5B/3PB1R1/K2Np1qr/1P1B2PB/k1RnR3 b - - 0 1 legal: proof: e4 d5 h4 f5 exf5 b6 c4 g6 cxd5 Qd7 a4 Kf7 h5 Qd8 h6 Ke8 a5 Nd7 a6 Bg7 hxg7 Nc5 Ra3 Qd7 Ra1 Nb7 axb7 Qd8 b8B Kd7 f4 Kd6 d4 h5 Kd2 a5 Kc2 e5 Kb3 e4 f6 h4 f5 h3 f7 e3 f8R h2 f6 Qd7 f7 Qb5+ Ka3 Qc6 Ne2 Be6 Nbc3 Rh3 Bd2 Nh6 g8B Qe8 Nf4 Ng4 Rc1 Nf2 Qf3 Nd1 Be2 Ra7 Rf1 h1Q Nd3 Qh2 Re1 Qg3 Qe4 Rb7 Bh5 Ra7 Na4 Rb7 Nac5 Ra7 Nd7 Ra8 Ba7 c5 Nf6 c4 Qf3 c3 Bb8+ Ke7 Be5 c2 Qf4 Rc8 Bb8 Rc6 Qc7+ Bd7 d6+ Ke6 Qa7 Kf5 Qc7 Be6 d7 Ba2 d8Q Re6 Qdc8 Bc4 Q8b7 Bb3 Qa8 Bc4 Ra1 c1Q Rb1 Bb3 Ra1 Qcc6 Rc1 Qed7 Rc8 Qe8 f8R Qcf3 Bf7 Bd5 Ng8 Ke4 Rc5 Qf6 Rb5 Rd6 Qa6 Ba2 Bb3 Re6 Bc2 Bb3 Nc5+ Kd5 Qa8+ Kc4 Rf7 Qfe5 Rf4 Qf6 Be4 Ba2 Bb7 Bb3 Rg4 Ba2 Na6+ Kd3 Bc6 Kc2 Nc5 Kb1 Be4+ Ka1 Nd3 Qgf2 Qd8 Rd6 Nh6 Bg8 Qe7 Re6 Bh2 Bh7 Ng8 Qg3 Rc2 Qff4 Qc7 Qf6 Rc1#
N1kNBQq1/1Qp1K1p1/3P2P1/b2rB3/2P3b1/2n1Brr1/B1QQ2n1/2R1q1qR b - - 0 1 illegal: No proof kernel
4kBBq/prb3nR/P1n2bQq/r2pRQ1R/6Q1/3R1QPb/2KP4/N3N2q b - - 0 1 illegal: No possible last move
rRRN2QB/P1b5/3RNpR1/krN1nP1b/2Np1b2/2Qb4/1nqP1K2/3B1b2 b - - 0 1 illegal: No possible last move
b2Q2nB/1rRp1r2/BnbN3Q/1RP1b2b/N2PR1p1/1kqN1RP1/5NK1/1r6 b - - 0 1 illegal: No proof kernel
3kN1NB/1n2rr1R/1nRp1n1p/1BbPnP2/8/1q2rB1P/b1Q2Q2/2BN2NK b - - 0 1 illegal: No proof kernel
B5r1/1nKBb1Qp/pRbr4/P1N1P2N/2R1B2q/k1bN2b1/1N1B2rP/1Q2n3 b - - 0 1 illegal: No proof kernel
Q3B1K1/r4p2/2Q3PR/pB1bBQ2/b1Q2b2/r1n2rnB/P1rq1PNN/1Rk5 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 Nc6 h4 Nb8 hxg5 Bg7 Be3 Bh6 Bc1 Bf8 Kd2 Ke7 Ke3 Ke6 Kf4 h5 g4 a5 c4 b5 e4 d5 c6 b4 c5 b3 c7 d4 c6 h4 g6 b2 g5 d3 g7 d2 g6 h3 Qf3 d1B Nd2 b1R Ne2 h2 Bh3+ Ke7 Kg5 Na6 e6 Kd6+ e7 Ke5 Nf1 Rb3 Nf4 Kd4 e5 Be6 c8Q Ra7 c7 Nf6 g8Q Nc5 e8B Na4 Ng2 Nc3 Rb1 Ra3 Qc6 Kd3 Bf4 Bd5 e6 Kc2 e7 Nh5 Be5 Ng3 Kf6 Bh6 Q8a8 Bf4 Kg7 Rh5 c8Q Rf5 Qf8 Qd6 Kg8 Qb4 Qg7 Qd4 Qc4 Qd2 Bb5 Rf6 e8B Rc6 Rb3 Kc1 Qf5 Bc2 Rb4 Ba4 Qgf6 Rc8 Qfc6 Rcc7 Rg1 h1R Rb3 Rh2 Rh1 Rc8 Nge3 Rg2 Nh2+ Rg1 Ng2 Re1 Nf1 Re3 Nh2+ Qd1 Qd4 Rd8 Qdc4 Be4 Nf1 Rd2 Bg4 Bd5 Rh6 Rf3 Nh2 Rc2 Bh3 Qd2 Rb1+
3K1Nn1/4BBrQ/1R2q1pN/2b1p1Nr/1P2bpP1/Q2nBP2/7r/1B1nk1RN b - - 0 1 illegal: No proof kernel
Nb2b1n1/1K2p1R1/Q1PpBN1p/2k1nr1P/R2P2NQ/2brr2q/5B2/1R3R1N b - - 0 1 illegal: No possible last move
q3b3/1Pr1k2p/6N1/RbN2p1K/p1BnBb1P/N1R2n2/1rNr1P2/3BB1QQ b - - 0 1 illegal: No possible last move, all moves rejected
NKbnn2b/pR2QR1p/r2r2p1/2r2P2/2Q3NP/nQ5Q/2B3P1/1NB1kN1q b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 Kc5 Kf4 d4+ Ke4 f4 e5+ d6 g6 h4 c6 b4 Qc7 f6 Be6 d5 Nh6 b6 Qf7 b5 Ng4 b7 Bf5 b6 Qe6 f7 Qc8 Nf3 Ne3 Nh2 Qe8 Qe2 Be7 f8N Bc8 Ne6 Rf8 Nc7 Bf6 d7 Bh8 Kd6 c5 d8N c4 Nf7 c3 Nh6 c2 N6g4 Nc6 b8Q Nd8 b7 Kd4 f5 e4 Ra6 Qa4 Qf3 Qa1 Bd3 Rf7 Qh3 Rf6+ Ke7 Nc4 d6 e3 d7 e2 Nf1 e1N Ke8 Nc6 d8Q+ Rd6 Qg5 Nd8 Qe7 Rc6 Rb6 Rc5 Rf6 Nd6+ Kf8 Rc6 Rf7 Ra6 Be4 Ne8 Rg1 Bd7 Qc8 Be6 b8Q Kc4 Bf3 Kd3 Be4+ Ke2 Qbb3 Rb8 Rh1 Rbb6 Na8 Rd6 Qcc4+ Kd1 Qf6 Bc8 Ke7 Nf3 Qfe6 Nd4 Qd7 Nb5 Qb7 Rdc6 Rg1 Na3 Qc7 Bb7 Kd7 Ke1 Qe5 Rcb6 Qe7 Re6 Bf4 c1R Bc2 Bc6+ Kc8 Bd7+ Kb8 Bc8 Be3 Rec6 Rh1 Rc5 Rg1 Rd1 Rh1 Rdd6 Bc1+ Qe5 Be4 Qh2 Bc2+ Be5 Rg1 Qh1 Qa2 Rac6 Bh6 Ra6 Nc3 Raa5 Nfe3+ Kd2 Rb1 Qd1 Rb7 Qh1 Nf1+ Ke1 Nb1 Raa6 Be3 Bg7 Qab3 Bh8 Bc1+
k2n1R2/5qQ1/1pp2rQ1/nB2pB2/1bB2RN1/P4N2/nPPR1rbK/B2r1R2 b - - 0 1 illegal: Other
1q1R4/1pnpn1QB/2N1k1p1/1P1Q2P1/nB4r1/NrP5/B1K3BQ/1Rb2qQb b - - 0 1 illegal: No proof kernel forced: wxLB
3n2Qr/7p/3P1r2/pq2nR1B/1q1p1b2/NRRPkN1P/2BBbrQ1/K4B1R b - - 0 1 illegal: No proof kernel
rBKb1b2/3R1p1r/B5nq/1n1NN2p/1p5R/1P4QP/2Q2P1k/1RBB1bRq b - - 0 3 illegal: No proof kernel
K7/1p2pr2/p1q1Q1r1/1nQ2QN1/1bRBBN1q/P3Pn2/5BP1/1kbBQR1b b - - 0 1 illegal: No proof kernel
1nrB1B2/B5b1/1pnq2Q1/r1N1rpQP/pk4N1/RBN2P2/P3bR2/K1N2r2 b - - 0 1 legal: proof: e4 d5 exd5 c5 g4 h5 gxh5 Qd6 b4 Qc7 bxc5 Qd8 h4 Kd7 c4 e5 d4 g5 Kd2 a5 Kc3 f5 Kb2 e4 c6+ Kd6 h6 e3 h7 g4 c7 a4 h5 g3 c5+ Ke7 c6 Kd6 Qd2 e2 Qg5 e1R Rh3 g2 Bc4 Rd1 Be3 Qe7 Nc3 Qf6 Nge2 g1R Bb3 Be7 Nc1 Bd7 c8N+ Kc7 d6+ Kd8 d5 Qf7 c7+ Ke8 Na7 Nh6 c8Q+ Bd8 Qc6 Rf8 h8B Ng4 Bg7 Qf6 Bh6 Rh8 Bf8 Rgf1 Qa6 Bc7 Nc6 Ne5 Ba7 Rde1 Rf3 Be6 d7+ Kf7 d6 Bc4 d8B Ke6 d7 b6 Qb7 Bd6 Rb1 Bc5 Ka1 Bd4 Rb2 Qe7 Rd3 Kd6 f3 Kc5 Rf2 Qd6 Re3 Be2 Qc8 Ng6 Ne5+ Kb4 Ng4 Bg7 Qc6 Ne5 Rd3 Qc5 Qcg6 Nec6 Bc7 Qd6 d8N Rg8 Ne6 Rh8 Nc5 Rg8 Be7 Rc8 Re3 Bb5 Rd3 Re5 Bcd8 Bc4 Re3 Be2 Bf8 Nd7 Bb8 Ra5 Ba7 Ndb8 Bg8 Nd7 N3e4 Ra8 Ra3 Rc8 Bb3 Ndb8 Nc3
B4n2/QR3Bn1/2N1NbB1/2p1Rpr1/kPb4R/1pq1pP2/rP3r2/3RBQ1K b - - 0 1 illegal: No proof kernel
k2K2n1/3R1qr1/pp2B1p1/1b1Q1rP1/2B2b1N/1P1nQp1R/b1PB1R2/2BR1N2 b - - 0 1 illegal: No proof kernel
R3bNQ1/K1p2qn1/1R1bp3/p1R2B2/1PPQP3/1N3Rp1/kn3Bnr/1Q1Q2r1 b - - 0 1 illegal: No proof kernel
1RR4N/nB1PN1p1/1N3p2/1Brp2Nn/3Q2KB/2n1brP1/1Q1P2p1/q1k3Bb b - - 0 1 illegal: Other
3R2B1/P1QbpBpB/2kr4/1N1Np1P1/2q1P2N/n1b1Kpq1/N2r1B1Q/4R1n1 b - - 0 1 illegal: Other
8/Qp1b2K1/RPQR4/1n1pnpR1/2QP1Bp1/2k1bq2/r2Rq1PN/NBb3Q1 b - - 0 1 illegal: No possible last move, all moves rejected
r2r1bQB/n1B1N1P1/R6k/Pq5q/1Q1bP1N1/1n1NrBQ1/P3q3/R5K1 b - - 0 1 legal: proof: c4 d5 cxd5 g5 f4 a5 g4 f5 b4 e5 fxe5 Ne7 bxa5 Be6 h3 Bf7 Bb2 Ng8 Bc1 Bh5 gxf5 g4 Ba3 g3 Bc1 Bg4 hxg4 Qc8 Bh3 Qd7 Bf1 Qd8 e4 Kf7 d4 Kg7 g5 c5 d6 b5 g6 h5 e6 c4 d7 b4 d5 b3 d6 b2 e7 c3 Qb3 g2 Kf2 h4 Nf3 g1R Ne1 c2 Nc3 b1Q Bb2 c1B e8N+ Kh6 f6 h3 f7 h2 Nf6 Kg7 Ncd5 Qc2+ Be2 Kh6 Nd3 Rg3 Ne7 Qe8 d8B Nc6 d7 Nd4 Bc7 Re3 d8Q Qb5 Rd1 Qcc4 Bf3 h1Q Qd6 Rd8 Qdb4 Qhh5 Kg1 Qc2 Q3c3 Nb3 Qe5 Ra8 Qg3 Qe2 Bbe5 Bb2 Rf1 Bg7 f8Q Bd4 Rfc1 Rd8 Rc6 Ra8 Qf7 Bf8 Ra6 Rd8 Nc6 Ne7 Qg8 Nc8 Ne7 Rh7 Nd7 Na7 Bh8 Rg7 Nf6 Rf7 g7 Ra8 Ned5 Rd7 Ne7 Rdd8 Ng4+
2K1R1b1/1PR2qnQ/2R1P3/3q2kP/2nqnrb1/1BB1B1P1/1N6/NrQQ4 b - - 0 1 legal: proof: f4 d5 c4 e5 fxe5 b5 cxd5 b4 g4 b3 axb3 Qg5 b4 Qf6 b5 Qd8 Nh3 h5 gxh5 g5 Qa4 g4 Nf4 g3 Qd1 g2 Nh3 Bh6 Ng1 Bg5 Ra3 Bf4 Ra1 Bg3+ hxg3 Qg5 Nf3 Qf6 Ng1 Qd8 Kf2 Ke7 Ke3 a5 Kd4 f5 Kc5 c6 b4 f4 e4 a4 d4 f3 d6+ Ke6 d5+ Kf7 b6 f2 b7 a3 d7 a2 Kd6 c5 e6+ Kf6 e5+ Kf5 e7 c4 e8R c3 b5 c2 b6 Nf6 e6 Rh7 Nc3 Rf7 Bc4 f1B Bb3 Na6 b8Q Be2 b7 Nc5 Nf3 g1N Nd2 Kg5 Qc7 Nf3 Na4 Ne5 Nb2 Bg4 Qc6 Qa5 d8Q Bd7 Qdc7 Rc8 Rb1 a1Q Rf1 Ra8 Rf4 Ra6 Rc4 Rb6 Rc3 Rf8 Ke7 Rb4 Kd8 Nce4 d6 Qd5 Qc5 Bb5 d7 Bd3 Kc8 Nc4 d8B Qa7 Q5c6 Qad4 Qh7 Rf7 Ba5 Rb6 Rd8 Ne8 Ra1 Ng7 Re8 Rf4 Qc7 Ne3 Rc6 Nc4 Bc3 Rb5 Ra5 Rb4 Rac5 Rb6 Nf1 Rb5 B1d2 c1Q Ne3 Qc2 Bc1 Qf2 Nc2 Qf3 Be3 Qf1 Ba2 Rb4 Na1 Qf2 Na4 Rb1 Bb3 Ned2 Rd6 Na3 Qg8 Bh7 Ba5 Ne4 Nb2 Qf3 Qh8 Bg8 Qh7 Qf1 Rc2 Qf2 Qc3 Qf3 Qcd2 Qf2 Rc7 Nc4 Rdc6 Qf1 Bg1 Qff2 Q2c2 Rf7 Bc3 Qff6 Bf2 Qg6 Bg1 Rf4 Be3 Qf7 Qcc1
r6Q/N1br3R/B2Nn3/2qr2Q1/RP1B1P2/1K1Qnq2/4PRPk/1B1n2q1 b - - 0 1 illegal: Other
r2QQb2/k6r/rq1B1q2/1NqR1P1P/2PR3B/RK6/NN4bP/1B3b1b b - - 0 1 legal: proof: d4 b5 g4 f5 e4 h5 gxh5 c5 dxc5 e5 a4 Nc6 axb5 Nd4 Ra2 Nf6 Ra1 f4 f3 Nf5 exf5 e4 Na3 e3 Nb1 Ne4 fxe4 Rh7 Ne2 Rh6 Ng1 Rh8 c4 a5 b4 d5 e5 Kd7 e6+ Kc7 b6+ Kb8 e7 g5 e8Q f3 b5 a4 c6 g4 c7+ Kb7 Bd3 d4 Nc3 a3 Nge2 a2 Bb1 d3 Nd4 e2 Kd2 Be6 c8N Kb8 b7 e1R Nb6 f2 Nba4 f1B Nb2 Ka7 b8R Qb6 Rd8 g3 Rd5 g2 Rg1 Qc5 Rh1 g1Q b6+ Kb7 Ndb5 Rh7 Rd4 Bf7 Rd5 Re6 Rd4 Ka6 b7 Reh6 b8B Bd5 Bd6 Bdg2 Rd5 Qgd4 Rg1 Qb6 Rh1 Qdc5 Rg1 Bh1 Rg4 Rf6 Rgd4 Bfg2 Ke3 d2 Kd3 Rfh6 Kc2 Rf6 Qg4 Rg6 Kb3 d1B+ Bc2 Bf1 Qg5 Bdf3 Qgd8 B3g2 Bg5 Re6 Bh4 Kb7 Rad1 a1Q Na2 Reh6 Bb1 Re6 Na4 Rg6 R4d3 Qf6 Nb2 Ka6 Ka4 Rgh6 Ra3 Rg6 R1d4 Rgh6 Nc7+ Ka7 Qf7 Qb7 Be5 Qh8 Qfe8 Rd6 Beg3 Qf6 Bf4 Qa6+ Kb3 Qaa5 Be5 Ra6 Bd6 Qab6+ Nb5+
5kN1/RP1nPBnq/1QrBp1Qb/B3R2Q/KP1Nq3/1R6/3n3P/2rb4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 c5 Kd2 a5 Kc3 g5 Kb3 c4+ Ka4 c3 b4 g4 f4 c2 d6 g3 b6 g2 d7+ Kf7 h6 Bb7 d5 Qe8 h7 Nf6 d6 Na6 Nd2 Be4 b7 Nd5 f6 Bf3 f5 Ne3 Ne4 Ra7 Qd3 Nb8 Ne2 g1N Nd4 Bd1 Qa6 Bh6 Bc4+ Kf8 f7 Rg8 h8Q Nf3 Re1 Nd2 Nf6 Ra8 Qh7 Rg1 Ng8 Rf1 Qb6 Ra6 Qg6 Qd8 Bb2 c1Q+ Bb3 Qdc7 d8B Q1c2 d7 Qe4 Qh5 Qce5 Qbg6 Rc6 Bb6 Qc7 Rb1 Qd8 Re2 Qe8 d8Q Nd7 Bc7 Re1 Bd6 Rf1 Qb6 Rh1 Nb5 Rg1 Bf6 Re1 Nd4 Rf1 Kb5 a4 Rb2 a3 Ka4 a2 Bfe5 Bg5 Bc7 Re1 Bed6 a1Q+ Ra2 Bh6 Ra3 Nc2 Bd5 Qb1 Rb3 Ne3 Bd8 Ng2 Be6 Nh4 Bc4 Qd5 Re5 Qde4 Be2 Qd5 Qf6 Bc2 Ka3 Rc7 Bc4 Rc6 Qc5 Rf1 Qe6 Kg7 f8R Rc1 Ka4 Bd1 Ba5 Qf7 Rb8 Qe8 Qa7 Kf8 Ra8 Qg2 Qc5 Qg6 Ra7 Qe4 f6 Nf5 Qb6 Ng7 Qeg4 Qh7 Bf7 Qd8 Qgg6 Qe8 Bb8 e6 Bd6+ Qe7 fxe7#
1n5n/5Pq1/1Q1NR3/N1Nrrqnr/6p1/PRBQ3P/B1RQ2P1/2K1bk2 b - - 0 1 legal: proof: e4 f5 exf5 d5 c4 a5 cxd5 a4 Bc4 a3 bxa3 Qd6 Bf1 Qd8 Nc3 b5 Qg4 b4 Qd4 b3 Nb1 b2 Qh4 Bd7 Qh3 Ba4 Qxh7 Bb3 axb3 Ra6 Nf3 Ra5 Ng1 Ra8 Kd1 Kd7 f4 Kd6 d4 c5 h3 e5 b4 g5 b5 g4 f6 c4 f5 c3 b6 e4 f7 e3 b7 Nf6 Nf3 Ra7 Bc4 Bg7 f8N Na6 b8R Ne4 f6 Nd2 f7 Qe7 Ra2 Rd7 Ng5 Nf3 Re1 Qe5 Qd3 Rh5 Rb3 Nb8 Nd2 b1Q Rc2 Nh4 Nfe6 Ng6 Nc5 Nh8 Re2 Bh6 Re1 Qg7 Re2 Re7 Re1 Re5 Nge4+ Ke7 Nd6 Kf6 Re2 Kg5 Re1 Kh4 Re2 Qa2 Bb2 Kg3 Kc1 Bg5 Rb7 Bd8 Ndb3 Bh4 Na5 Qb3 Re1 Qb5 Ba2 Qd7 Rb3 Qf5 Ne8 Kh2 d6 e2 d7 Bf2 d8Q Bg3 Rg1 e1N d5 Nf3 d6 Be1 d7 Ng5 Qb6 Rd5 d8Q Re5 Rf2 c2 Bc3 Rd5 Nd6 Re5 Kb2 c1R Rc2 Rd1 Rf1 Rd2 Rf4 Kg1 Re4 Kf2 Kc1 Kg1 Re2 Kf1 Re3+ Re2 Qd2 Rd5 Re6 Re4 Qg8 Ree5 Qh7 Qf3 Qe4 Qf5 Qed3+
rr1Q1r2/B1r1p2b/1qBb2Bk/5Q2/PNrPK1Q1/1nP1PR2/2R2R2/4N3 b - - 0 1 legal: proof: g4 d5 f4 g5 fxg5 h5 gxh5 a5 b4 Nc6 bxa5 Nb8 c3 Bg7 Bg2 Bh6 Bf1 Bf8 Nh3 c5 Ng1 c4 Bg2 d4 Bh3 Nc6 Bf1 Na7 Na3 Nb5 cxd4 c3 Nb1 c2 Na3 Qc7 Nb1 Nc3 dxc3 Qd8 Kf2 f5 Ke3 Kf7 a4 Kg7 h4 b5 h6+ Kh7 a6 b4 a7 f4+ Ke4 f3 e3 f2 h5 b3 Qd3 b2 Nf3 Qc7 Ra2 Qc4 Ne1 Ba6 Rh3 Re8 a8B Bc8 Na3 b1R Rf3 Qc7 Bc6 Bg7 Qb5 Qb8 Bd3 f1R Qa5 Qd6 Qf5+ Qg6 Bb2 c1R Nac2 Be5 Ba3 Rb8 Bc5 Bd6 Ba7 Rcb1 Nb4 Rd8 Rh2 Rd7 Rhf2 Rc7 Rc2 Be6 Bd5 Rb3 Na6 Rd8 Rf4 Rb6 Nb4 Bc5 Ke5 Rg1 Qg4 Rdc8 Qh4 Nf6 Qh3 Rd7 Rf3 Kg8 h7+ Kg7 B5e4 Qh6 g6 Bf5 Rff2 Rhg8 h8R Rg2 Bb7 Ne4 Qf3 Rge8 Rf8 Nd2 Qh3 Be4 R8f3 Nb3 Ba8 Rg4 Bd5 Rf4 Bb7 Kh8 g7+ Kh7 Ba8 Qc6 h6 Rff8 Qe6 Rb5 Qd5 Kg6 g8Q+ Kh5 Qg2 Rbb7 Qg3 Qb6 Qf4 Kg6 Qg4+ Kh7 Qde6 Bg6 Bf5 Rc6 Ke4 Rdc7 Bb8 Ra7 Bb7 Ra8 Ba7 Reb8 Qe5 Bd6 Qef4 Rc4 Bc6 Rfe8 Qe5 Kg8 h7+ Kf7 h8Q Bh7 Qc5 Rec8 Qe8+ Kf6 Qd7 Rf8 Bg6+ Kg7 Qcf5 Kh6 Qd8
q1b5/b1q2NQ1/B1b2PBP/1QRP1nR1/3Q1BR1/2N1pk1r/P4b2/5Kn1 b - - 0 1 legal: proof: c4 b5 d4 c5 g4 f5 b4 a5 bxa5 d5 cxd5 h5 gxh5 c4 e4 Ra7 exf5 Ra6 Ba3 Rc6 Bc1 Rc5 dxc5 Ba6 Qd2 Bb7 Qd1 Bc8 h4 Kf7 f4 Kf6 c6 e5 h6 g5 h7 e4 h5 c3 c7 b4 a6 c2 a7 b3 a8Q g4 Nh3 b2 Rg1 g3 Qb7 g2 Nc3 b1B Ba6 Ne7 Ng5 Bh6 Qb5 Nd7 Nf7 Ne5 Qd4 Bb7 c8B Bc6 Bd7 Qa8 Be8 Bg5 Bd2 c1Q+ Ke2 Bh4 h6 Rf8 h8R Bf2 Rh7 Qc2 Rc1 g1B Rg7 Rg8 Rg2 Rg3 Kf1 Rf3 Rg4 Rh3 Ne2 Qc5 Nc3 Bc2 Rab1 Qca7 Rb4 Qc7 Rc4 Ba4 Rc5 Bb7 Re1 Bc8 Re3 Qa5 Reg3 Qc7 Qbd3 Bad7 Qb5 Bc6 Rg5 Ng6 R3g4 Nh4 Qdc4 Nef3 Qd4+ Ke7 Ne5 Kd6 f6 Nf5 f7 Be3 Bc1 Bgf2 Bd2 Ng1 f8Q+ Ne7 Qg7 Nf5 Qda4 Bd4 Bg6 Bde3 Rc4 Ba7 Rc5 Nh4 f5 e3 f6 Nf5 Bc1 Be6 Ba3 Bc8 Nf7+ Kd7 Nd8+ Kd6 Bb4 Ke5 Ba5 Qe7 Bc7+ Qd6 Bb8 Qc7 Qd4+ Kd6 Qd2 Ke5 Rg3 Kf4 R3g4+ Kf3 Nf7 Qcb7 Bf4 Qc7 Qd4
kb1B1r1R/6q1/2n1Q1pr/3q1Q2/NR3P1R/PN2PB2/1p2n1P1/1N2nK1B b - - 0 1 illegal: Other
b3rB1R/1b5n/1nP3NP/Q6K/2N2NPP/Bq1p4/4pR1k/RBb1Q1q1 b - - 0 1 legal: proof: d4 a5 e4 d5 a4 c5 dxc5 b5 axb5 h5 g3 h4 gxh4 g5 f3 g4 fxg4 d4 Nf3 Rh5 Ng1 Rd5 exd5 Ra6 Bf4 Rh6 Bc1 Rh8 Kf2 Kd7 Kg3 e5 c4 f5 b4 a4 d6 Ke6 h5 e4 d7 Ke5 h6 a3 b6 e3 b7 a2 c6 Be7 c7 Rh7 b5 Ke4 b6 Bf8 c5 Qe7 d8Q Nd7 b8B Qe6 Kh4 Kf4 b7 Rh8 Kh5 Qb3 h4 Kg3 Nd2 f4 Nh3 f3 Rh2 f2 Qe1 Nb6 Bd3 e2 Bb1 d3 Nf4 Bd6 Nc4 Nf6+ Kg6 Rf8 Ba3 Nh7 Kh5 Re8 Ba7 Bf8 b8R Bb7 c8N Bg7 Qd5 Bb2 Ne7 Bc1 Neg6 Ba8 Qe5 Bb7 Q5c3 Ba8 Qa5 Bb7 Qed2 f1B Rf2 Bfg2 Qe1 Kh2 Rc8 Ba8 Bb8 Bb7 Bd6 Ba8 Rf1 Bgb7 c6 Re6 Rh8 Re8 Bf8 Re7 Bc2 Re8 Rb1 a1Q Rf3 Qac3 Ra1 Qd4 Bb1 Qg1 Rf2+
3NNBb1/2nR1P1R/3B1P2/5BrQ/2K1n3/1p1Q1qRP/bpQ3P1/1k1qn3 b - - 0 1 illegal: Other
1B1k3Q/7R/Nnb1N3/n1nP2p1/1qpnr3/2RPP3/PR3K1n/3BBQQ1 b - - 0 1 legal: proof: c4 b5 g4 e5 b4 d5 cxd5 f5 f4 a5 fxe5 g6 bxa5 f4 h4 Bf5 h5 Bc8 h6 Bg7 hxg7 Ra6 Qa4 Rf6 Qd1 Rf5 gxf5 Qg5 Na3 Qf6 Nb1 Qd8 e6 c5 e7 h5 a6 c4 a7 h4 a8R h3 e3 b4 f6 b3 d3 b2 f7+ Kd7 f8B f3 Ne2 h2 Nf4 Rh4 Nc3 b1N Nb5 Na6 Be2 Nf6 g8Q Qa5+ Kf2 Qb4 Rb8 Nc5 Ne6 Bb7 Qf1 Re4 Bd2 Bc6 Be1 Nd2 Rc1 Ndb3 Rc3 Na5 Rb6 Ke8 Bd1 Nfd7 Rb7 Nb6 Nbc7+ Kd7 Na6+ Kc8 Qh8 g5 Qg1 Nbd7 Rb5 Nb6 Qh3 Kd7 Qhf1 Kc8 Bg7 Kd7 Be5 Kc8 Kg3 f2 Bb8 Kd7 Nf8+ Kc8 Qe2 f1N+ Kf2 Nd2 Nd7 Nf3 Nf8 Nd4 e8Q+ Kb7 Q8h5 Kc8 Qh8 Kd8 Qg3 Qb3 Qf1 Qa3 Rb2 Qb4 Rg1 h1N+ Kg2 Nf2 Rh1 Nbd7 Rh7 Ng4 Kg1 Nh2 Kf2 Nb6 Qg4 Ncb3 Qgg1 Nc5 Ne6#
1RBB2n1/2b2bN1/nBK2P2/5n1Q/2Q1n2p/p5QR/1R2PPPq/1n1N1k2 b - - 0 1 illegal: Other
3nb2q/1N1b4/2QP1Q1R/3BP3/P1n1R3/2BpNQ2/2RP1pnB/1bbK1k2 b - - 0 1 legal: proof: f4 a5 h4 e5 fxe5 g5 hxg5 b5 a3 b4 b3 a4 bxa4 b3 c4 h5 Kf2 d5 Rh2 d4 Rh1 Ra5 Ke1 Rd5 cxd5 Rh6 Bb2 Rb6 Bc1 Rb4 axb4 Bb7 Kf2 Ba6 Ke1 Bc8 e4 Ke7 g4 c5 g6 f5 g5 c4 e6 Kd6 b5 Kc5 g7 h4 g6 d3 b6 Kd4 b7 f4 e7 c3 e8R f3 Nh3 b2 Nf2 c2 Bg2 h3 Ra2 h2 Nc3 b1B Ng4 Bd7 Bb2 c1N Ne3 Nh6 g8Q Qc8 g7 Ne2 Qf7 Ng4 g8Q Ba3 Qf6+ Ne5 Qgg6 Nc6 b8B Nf4 Bc7 Nd8 Nb5+ Kc5 Bb8 Nc4 Bc3 Bc1 Bc7 Qb8 Rc2 Qa8 Qe2 f2+ Kd1 Qc8 Bf3 Ng2 Bf4 Qa8 Nd6 Qb8 Re6 Be8 Re1 h1B e5 Bd7 Bh2 Qc8 Bb4+ Kd4 Nb7 Be8 Rb6 Qh3 Qc6 Qh8 Qgf6 Bd7 Bg4 Be8 Bc3+ Ke4 Be6 Bd7 Qh5 Be8 Qhf7 Bd7 Nf5+ Kf3 Re4 Ne1 Qh5+ Kg2 Qf3+ Kf1 d6 Na3 Rbb4 Nc4 Bd5 Bg2 Rh4 Be8 Rh7 Bh3 Rh5 Ng2 Rh6 Na3 Re4 Nc4 Ne7 Bc8 Nf5 Bcd7 Ne3+
3N4/4Q1BK/3p1pPP/nP3p2/2bq3B/2nr1Q1P/1N2Br1N/1R1Rk1bQ b - - 0 1 illegal: Other
rRBRbNbq/8/kPN2Bp1/2P1Q2p/4P3/1P1N2Q1/2Kn2rp/3r1B1R b - - 0 1 illegal: Other
4r1q1/N5PP/PnRb2K1/1QN5/3p3b/1p3PpB/bQ4Q1/BkBn2RR b - - 0 1 legal: proof: e4 b5 b4 h5 g4 g5 gxh5 c5 d4 a5 bxa5 f5 dxc5 Ra6 exf5 Rg6 fxg6 Qb6 Qd4 Qc7 Qd1 Qd8 Ke2 d5 Kf3 Kd7 Kg4 Ke6 a4 b4 c4 b3 h4 Na6 h6 Ke5+ Kh5 Ke4 h7 e5 c6 g4 c5 g3 c7 Qd6 c6 Nh6 Bh3 Qd7 Qc2+ Kd4 Nc3 e4 Qb2 Kd3 Nb5 e3 Ne2 Nf7 Nf4+ Kc4 Nd3 e2 Nc5 e1B Na7 Nb8 a6 Ne5 a5 Nd3 f3 Bb7 c8R Qg7 c7 Nd7 Rb1 Rg8 h8B Bd6 Kg5 Bc3 h5 Bc6 h6 Nb6 h7 Nf2 Kh5 Qf8 Bd4 Bb7 g7 Nd1 Kg6 Rh8 Be5 Qg8 Qg2 Bb4 Ba1 d4 Ne4 Kd3 Bf4 Bc6 Nb5 Ne3 a7 Bd2 a8Q Kc2 a6 Qd8 Rbg1 Nd1 Na7 Bb5 Be3 Bd3 Qd5 Kc1 Bg5 Bb1 Qb5 Ba2 Bf4 Kb1 Bh6 Be1 Bc1 Qf8 Ra8 Bf2 c8Q Be3 Qc3 Bg5 Rc8 Bh4 Rc6 Rg8 Nc5 Qf7+ Kh6 Re8 Qcd2 Qf8 Kg6 Qg8 Qb2+
4r1Q1/1P3P2/1p2p1kN/1P1b3n/4pBB1/N1nRn3/Q1rR2qP/BRQ1K3 b - - 0 1 illegal: Other
2N5/1B3NR1/2pPBK2/6n1/bQN2Pq1/Rb1PQk1p/1pP1rB1q/1b3Q2 b - - 0 1 illegal: No proof kernel
3QRR2/B1b1qpn1/6N1/1q1B2B1/2q1pPRp/kb3QP1/2PP3N/K1Q4b b - - 0 1 legal: proof: b4 a5 e4 d5 exd5 c5 bxc5 b5 a3 b4 a4 Ra6 Qf3 Rb6 Qd1 Rb5 axb5 Bg4 Bd3 Bh3 Bf1 Bc8 g4 g5 Ra3 h5 Ra2 h4 Ra1 Rh5 gxh5 g4 Nc3 g3 Ra4 g2 Ra2 Nc6 Nb1 Nd4 Ra4 Ne2 Ra1 Ng3 hxg3 Bb7 Qg4 Ba6 Qd1 Bc8 b6 Kd7 c6+ Kd6 c7 Kc5 b7 e5 b8B a4 d6 b3 h6 Kb4 d7 b2 h7 a3 h8Q a2 Qf6 Bc5 Na3 Be7 Qff3 Bf6 Ba7 Ne7 Nc4 Ba6 c8R Qg8 Rf8 Bg5 d8Q Nf5 Bd3 Qg7 Be4 Bf4 Bd5 Qf6 Ke2 Qd6 Kd3 Bb7 Rh2 Ka4 Kc3 Ng7 Rb1 a1Q Rh1 Qa2 Ra1 b1B Ba3 Qc6 Qc1 Qb6 Be7 Qb5 Bg5 Bc8 Rh2 e4 Ne5 Bh3 Ng6 Bc7 Re8 Ka5 Rh1 Qaa4 Rf8 Ba2 Rh2 Bb3 Kb2 Kb4 Ra2 Qc5 Ka1 Qab5 Ra6 Bg4 Re6 Qcc4 Ree8 Bh3 Qff6 Ka4 Nf3 g1Q Rh1 Kb4 Nh2 Bg2 Qf3 Qgf1 Rg1 Qcc5 Rh1 Qfc4 Re1 Qe7 Re3 Qcc6 Rc3 Bh1 Rc5 Qce6 Rc6 Qc8 Rf6 Qce6 Rf4 Qec6 Rg4 Qcc4 Qd3 Ka4 f4 Kb4 Qf3 Ka4 Qcf1 Ka3 Qc1+
Q1bN1n2/P7/p1PPrR1B/2pQ1b2/4N2B/5pRN/1b1bBPR1/k2b1K2 b - - 0 1 illegal: No proof kernel
K1N5/B4RbQ/1R1pb3/6pN/k1R1pp1P/N1pPQP2/2P1b3/3bnB1B b - - 0 3 legal: proof: e4 a5 b4 d6 bxa5 Bh3 e5 Bc8 e6 Qd7 a4 b5 Ke2 b4 Ke1 Kd8 Qe2 Ba6 Qg4 Kc8 exd7+ Kb7 Qe2 Kc6 Qd1 Bc8 Na3 Kd5 Nb1 Ke6 Ra2 Ra6 Ra3 Rb6 Ra1 Rb5 axb5 Kd5 Qg4 Ke5 Qd1 Ke6 h4 g5 h5 h6 Rh3 Rh7 Rh4 Rg7 Rh1 Rg6 hxg6 h5 g3 h4 Rh3 Nc6 Ke2 Nd4+ Ke1 Nf5 Rh2 h3 Rh1 Nh4 gxh4 Bg7 Nc3 Bh6 Nb1 Bf8 Rh2 Kd5 Ke2 Kc4 Kf3+ Kc5 Ke4 e5 d8N b3 g7 Kb4 Kd5 f5 Kc6 b2 d3 Be7 b6 Bf6 a6 Be6 Kb7 c5 a7 c4 a8B c3 Ra4+ Kb5 Qe1 Ne7 g8Q Bg7 Qh7 Bh6 Rc4 Bd7 Ne2 Bg7 Be3 Ng6 Ng3 Nf4 Nc6 Ng2 Ne7 f4 Nh5 Ka5 Nc8 Bg4 Na3 Bd1 Qe2 Ne1 Ka7 Bh8 b7 Bg7 Rg2 h2 b8R h1B Bc6 Bf8 Ka8 Bg7 Rh2 Bg2 Ba7 Bf3 Rb6 Bg4 Bh1 b1B Rc7 Ba2 Rf7 Bae6 Rh3 Bd7 Re3 Bde6 Re4 Bf3 Qd2 Bfe2 Rc4 e4 f3 Bh3 Qe3 Be6 Rc5+ Ka4 Rc4+
2q5/K1NB2n1/N3P2b/1rBQ2PR/3R4/nB2k1Qb/bP1NPrnq/q3R3 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Ke3 f5 Kd4 h5 g4 c5+ Kc4 a5 d4 f4 d6 Ke6 d7 a4 b6 f3 Kb5 Kd5 g6 Ke4 g5 f2 g7 a3 b7 a2 d5 c4 d6 h4 Nd2+ Ke3 Bg2 f1B Rb1 a1Q Qc2 c3 Qh7 h3 Kc5 h2 Qh4 c2 Nh3 Nf6 g8B Bh6 Bc6 Nh5 Nf4 Bh3 Ne6 Ng7 Nc7 Ra5+ Kb6 Na6 b8N Nb4 Bb3 Rf8 Na6 Rb5+ Ka7 Rf2 e6 Bb7 Qg4 Qc8 d8R Ba8 Bd7 Bd5 Re1 h1Q Qg2 Qh2 Qg3+ Kd4 Nf3+ Ke4 Be3 c1N Bc5 Ncd3 Rbd1 Bc4 Rh8 Nf4 Rd4+ Ke3 Rh7 Nc2 Nd2+ Rf3 Bc6 Bd5 d7 Na3 d8Q Bc4 Qd5 Ng2 Ba4 Bb3 Bd7 Ba2 Bb3 Nh5 Rf7 Ng7 Rff4 Rb4 Rh4 Rb5 Qg4 Rf5 Rh5 Rf2 Qg3+
R1Q1RR2/bqNrB3/k3PNP1/1rPb3q/2n1PnN1/5K1b/2B2B2/r2Qq3 b - - 0 1 illegal: No possible last move
2q2BBQ/2n1QQ2/PrnK1bkP/qP1nP3/8/N2b2rq/1RBNb3/1R4R1 b - - 0 1 illegal: No proof kernel
5nQB/2P2KB1/1Nqq1b1b/8/1kPn4/r1Pb1RNQ/Pq1Qr2R/1Bn1N3 b - - 0 1 illegal: No possible last move
1rR1B2N/1Nrn3R/1kQn1r2/3b2b1/1P1P1Pn1/3RrQ2/2P3Q1/rq1B2BK b - - 0 1 illegal: No proof kernel
3bbQ2/2b2rq1/PB1R4/nBP1kPb1/N1rP1N1N/K1QB1nr1/1Q2b3/5R2 b - - 0 1 illegal: No possible last move, all moves rejected
Nr3r2/K6b/1BBPPQ2/1Pr1n2k/3Q1QN1/2R2PRn/n2bR1B1/2bn1q2 b - - 0 1 illegal: No proof kernel
3Q2bq/3nNr2/B1R1Pb2/1RbPB1k1/4r1b1/NP3qn1/1Q1K2PR/b2B2Q1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 e4 Ke7 d4 h5 b6 f5 e6 a5 g6 Kf6 e7 c5 e8R a4 g7 h4 b7 f4 d6 a3 b3 a2 e5+ Kg5 d7 c4 Ba3 h3 Re7 f3 Ne2 h2 Re8 c3 Bd6 c2 Kd2 f2 Nf4 Nh6 g8B Ra4 Bf7 Rh7 Ba6 f1B Bh5 Qf6 d8Q Bc4 Ng6 Nd7 b8Q Nf5 Na3 Rf7 Ne7 Ng3 Rc1 a1B Qg1 Qf3 Qbb6 Be6 d5 Re4 Qbd4 Bg7 Qb2 Bf6 Re1 Bg4 Re3 Be6 Rc3 Bg4 Rc6 c1B+ Kc2 Be3 e6 Bc5 Be5 Bb7 Rc8 Bc6 Kd2 Bb5 Rc6 Bd3 Qa8 Bb1 Rb8 Bd3 Rb5 Bb1 Qgd4 Bd3 Qd8 Bb1 Re1 h1Q Qg1 Qh2 Bg6 Qh8 Bh5 Ra4 Rc1 Bh7 Rc4 Bg8 Rf4 Bf5 Rh4 Bg4 Rh2 Re4 Bg6 Rf4 Bc2 Re4 Bd1
4q2Q/1k2BrPr/1n4RR/1n1Q1P1B/4q1bb/n5NN/1P1P2n1/2K1RQnN b - - 0 1 illegal: Other
1r3Bqb/RR1b1N2/2r5/b2Q1R2/B1N2nP1/1qNP1Pk1/1P1bQn1n/1K4B1 b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 g4 Kf7 d6 h5 g6+ Kf6 b6 Ke5 g7 Kf4 d7 e5 b7 c5 f6 a5 f7 e4 d3+ e3 Bd2 c4 Ke2 h4 Ra3 h3 Ke1 h2 Nf3 c3 Bh3 a4 Ng1 c2 Qc1 Ra6 Bf1 Nc6 b8R Nf6 g8Q Ne5 Nf3 Bg7 f8B Nh5 Be2 Rc6 Ra1 a3 Rf1 h1N Rb7 a2 Qd1 c1B Nc3 Qg5 d8N Bd7 Qgb3 Bf6 Nf7 Qg8 Qd5 Bg7 Rb1 a1Q Qc2 Qa8 Kd1 Qa3 Ra1 Qb3 Raa7 Bf6 Be1 Bg7 Nd2 Nf3 Nc4 Nh2 Bf3 Bd2 Bg2 Rhh6 Bf3 Bh8 Be4 Rc8 Bf5 Rb8 Be6 Be8 Bd7 Rb6 Ba4 Rc6 f3 Bd7 Bf2 Ra6 Bg1 Kg3 Rf2 Nf4 Re2 Rg6 Re1 Rc6 Re2 Be1 Kc1 Nf2 Kb1 Bd2 Re1 e2 Rc1 e1B Qd1 Be3 Rc2 Bc1 Re2 Bcd2 Re5 Nf1 Qe2 Nh2 Nb5 Ba5 Rf5 Bed2 Nc3
7R/bQ1B1Qn1/3r3b/B2NkqB1/PR4P1/1bQq4/PbnP3r/R1nKN3 b - - 0 1 legal: proof: h4 d5 e4 f5 exf5 g5 hxg5 a5 c4 a4 cxd5 a3 bxa3 Bd7 a4 Bc8 g4 Kd7 f4 Kd6 f6 e5 g6 c5 g7 h5 f7 b5 f5 h4 f6 e4 Nh3 e3 Be2 b4 Qc2 b3 Qc3 c4 Ng1 h3 Kd1 b2 Na3 b1Q Bf3 e2+ Ke1 h2 Nc2 Ra6 Na3 Nc6 Nh3 Qf5 Nc2 Nge7 g8R Be6 Bb2 Bh6 f8Q Nd4 f7 Ke5 Nf4 Rd6 Rg7 Qd7 Qa8 Qd3 f8Q Nf5 Rg8 Ng7 Qf7 Qb5 Rf1 h1N Qab7 Nf2 Ba3 Qd7 Bb4 Rh7 Rh8 Qb5 Qa3 c3 Ba5 Qf5 Rb1 Qa6 Rb4 Qad3 Na1 c2 Qc3 c1B Nc2 Bb2 Rg1 Rb6 d6 Bb3 d7 Rd6 d8B Bg5 Rc4 Rh2 Bc6 Bh6 Bg5 Nh3 Ng2 Nf4 Rb4 Qg6 Qcc4 Qgf5 Nce3 Nc2+ Kf2 Rh1 Bd7 Rh2 Ra1 e1B+ Kf3 Bf2 Ne1 Qe6 Qcc8 Ne2 Qcc6 Nc1 Qc3+ Qd4 Nd5 Qf5+ Nf4 Nd3 Ke2 Nc1+ Kd1 Be3 Qcc7 Qdd3 Nd5 Ba7 Qc3+
br2QRkr/1q2b3/3n3q/PB2R3/5qP1/b1R4N/1P2KN1P/1NB1QnqB b - - 0 1 illegal: No possible last move, all moves rejected
1RQ2q1Q/1bK1B3/1P2b1Pb/N2R1kb1/RNnq4/3rQP2/1BB1Pnr1/1q6 b - - 0 1 illegal: No proof kernel
1n3N1b/B2BP2R/1R1PK1N1/1N1rB2Q/qQ2Pr2/1bnRP2n/1r6/3k2rq b - - 0 1 illegal: No possible last move
2b1R1QN/1P2nr2/kR1q3r/5r2/N1r1R2Q/P1nP2bB/Q2q1P2/Bb3K1N b - - 0 1 illegal: No proof kernel
3BrrqN/PPPNRQR1/q2kN1K1/5P2/nB6/2QR1rb1/2b3nr/2n4B b - - 0 1 illegal: No possible last move
4NK2/B2P3P/Pb3k2/Rn1q1r1r/1r2BQn1/RBnN3P/6r1/2QbR1Nn b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 Ke2 Kf7 Ke3 b5 Kd4 c5+ Ke5 g5 d4 b4 a4 g4 f4 c4 d6 e6 f6 g3 h3 b3 h6 b2 d5 c3 a6 g2 f5 c2 a7 Qb6 h7 Ne7 a5 Qb7 a6 Ng8 d7 Bc5 d8R Bb6 Kd6 e5 Nc3 b1N Nb5 e4 Nc7 e3 Ra3 e2 Ne8 e1N Bc4 Nd3 Be3 c1R Bb3 Rc5 Qc1 Nc6 Ra5 Rb8 a8B Nd4 Ra3 Kf8 f7 Nf6 Rd7 Ng4 Rc7 Rb5 Rc5 Rb4 Rca5 Bd7 Bf2 Ba4 Be3 Nb5+ Ke6 Nge5 d6 N1c3 d7 Nf2 Kf6 Qf3 Be4 Neg4+ Kg6 Ke7 Kg7 Qd1 f8N Qd5 Ne6 Rf8 Nc5 Rc8 Nd3 Rc5 f6+ Ke6 Nf3 g1R f7 Rg2 Re1 Nh1 Ng1 Ke7 Ba2 Bd1 Bb3 Qe6 Bf2 Rh5 Bd4 Qd5 Be3 Rh8 f8Q+ Ke6 Qf2 Rf8 Qf4 Rff5 Kg8 Bd8 Ba7 Bb6 Nd6 Kf6+ Kf8 Qc5 Nf3 Qd4 Ng1 Qd5 Ne8+
b1Q2b2/2PrP1RK/NN1R2nb/qP2P1Qb/Q1R2B2/r1n3n1/N7/4kB1n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kf2 Ke7 Ke3 Ke6 Kf4 a5 b4 d5 h4 f5 e4 a4 c4 d4 h6 d3 b6 a3 c6 d2 c7 a2 h5 Nf6 Kg5 f4 Kg6 f3 b7 f2 h7 Nc6 b8N Nd5 b5 Nc3 c5 Ra3 h6 Bb7 c8R Qa5 Nf3 Ba8 Qa4 d1B Rg1 Be2 Na6 Ne7+ Kg5 g6 Nfd2 Bh5 c6 Rg8 h8Q Rg7 h7 Rf7 Bg2 f1N Qg8 Ng3 h8Q Nh1 Bf1 Bh6+ Kh4 Bf8 Nc4 Bh6 Bf4 g5+ Kh3 g4+ Kh4 g3 Nb6 g2 Qg5 Rh7 c7 Rf7 Rd8 Rh7 Rd7 Rf7 Qc8 Ng6+ Kh3 Rg7 Rd3+ Rd7 Rd6+ Kf7 e6+ Kg7 Qg3 Kf6 e5+ Kf5 e7 Bf8 Qb3 Ke4 Qg5 Kf3 Qd1+ Kf2 Qa4 Nd1+ Nc3 Ke1 Rc1 a1B Rc2 Bb2 Rc1 Ra1 Rc2 Bc1 Na2 Be3 Rc4 Nc3 N2b4 Ra3 Na2 Nh8 Kh4 Bd2 Qg7 Ng6+ Kg5 Be3 Kh6 Bc1 Kh7 Bd2 Bh2 Bh6 Qf6 Ng3 Rh1 g1N Qg5 N1e2 Rg1 Nh1 Bf4 Neg3 Qf6 Nge2 Rg4 Neg3 Rg5 Nh8 Rg7 Ng6 Qg5
4r3/P2PNr1k/b2Qn2N/1n2RnrQ/1RP1n2R/q5Br/3P2B1/4bBKN b - - 0 1 illegal: No proof kernel
2rNb3/BB1qr1n1/1NR3rp/1B1nbP2/PP6/1P1n2Q1/b3K1N1/R2QQ1k1 b - - 0 1 illegal: No possible last move, all moves rejected
1n2Bq2/2Q2nr1/3Q1rn1/R2RP2N/b3B3/1N1rbpPk/PPK2B2/2RN1q2 b - - 0 1 illegal: No proof kernel
4Nbb1/1R2n1kr/Bq1R4/1qBNP3/p1Q3r1/n1QBN1P1/3PP3/Q1Kn2b1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 b4 a5 g3 c5 d6 f5 g6 h5 b6 f4 g7 Kf7 b5 c4 d7 h4 b7 f3 b6 c3 Bh3 c2 Ba3 c1B Bf5 h3 Bc5 a4 Na3 h2 Nc2 Nf6 g8B+ Kg7 Nh3 Ne4 Bc4 Rh6 Ba6 Qe8 d8Q Qb5 Qd3 Bb2 Rb1 Nc6 b8Q Nc3 b7 Ne7 Nf4 Be6 Qc8 Rh7 b8N Bg8 Nd7 Rb8 Rf1 h1N Nf6 Nf2 Qc4 Qb6 Bg6 Nb5 N4d5 Na3 Nce3 Bd4 Bd3 Ra8 Qdc1 Nd1 Rb4 Ra7 Qa1 Rh4 Rh1 Rg4 Rh6 Rd7 Ne4 Qb5 Rd6 Rb7 Nef6 Rd7 Ng2 Bg1 Nge3 Ra7 Qc7 Rb7 Qa5 Qb6 Rb5 Rd7 Q5c3 f2+ Kf1 Ra7 Ne8+ Kf7 Bd4 Qa5 Bc5 Nf5 Nc2 Nb2 Rbb6 Qb5 Bb4 Rc7 Nef6 Kg6 Rb8 Rh7 Ne8+ Kf7 Rb7+ Ne7 Bc5 Qc6 Bd4 Qb5 Kg2 Qb6 Kf3 f1Q+ Bf2 Qe1 Bc5 Qd1 Nce3 Qdb3 Kg2 Q3b5 Kf1 Nd1 Ke1 Nf2 Bd4 Nh3 Kd1 Nf2+ Kc1 Nd1 Nec7 Kg7 Bc5 Q5a5 Nb4 Qbb5 Nbd5 Qab6 Ne8+
1n1B4/R4B2/3q1Q1P/2R1NBnK/pqq5/1PrPb3/1r1RQP2/N1Qb1k1b b - - 0 1 illegal: No proof kernel
1R2NbBR/1N5n/4P3/Qq4Nn/1Pb1KP1B/r1P1B2b/1kQ2p2/1rq1n1Q1 b - - 0 1 illegal: No proof kernel
2q1B2N/Qn1Q3R/4Pr1b/b4P2/P1b2k2/Kpr2r2/2NPq1R1/RNB3Bn b - - 0 1 illegal: No proof kernel
3k2R1/4rB1N/1P1Qb1p1/2Pn2P1/4rNNr/1RRB1q1q/KBPbQb2/n7 b - - 0 1 illegal: No possible last move
6N1/1Q1bkqnq/P2RPN2/1N1b2R1/1rn1Qp2/2B2rR1/1rP1BP1b/5KQ1 b - - 0 1 legal: proof: d4 a5 b4 c6 bxa5 c5 dxc5 h6 g4 h5 gxh5 Ra6 Bg5 Ra7 Bxe7 Ra8 e4 d5 a4 g5 h4 b5 c6 f5 h6 f4 e5 g4 e6 d4 c7 g3 h5 b4 a6 b3 h7 d3 a5 b2 a7 g2 a6 Bg7 h6 Bf6 Ra5 Nc6 Bb4 Qe7 Rh3 Rb8 a8Q Qf7 Rg3 Nge7 Ne2 g1Q Bc3 Qh2 Nd4 Bd7 Be2 d2+ Kf1 Nf5 c8Q+ Ke7 Nb5 Bh4 Qcb7 Ne5 Qe4 Rhg8 h8N Nc4 h7 Ng7 Qab7 Rgd8 Qc1 d1B Nd2 Rdc8 Qa1 Rc6 Qb1 Rd6 Qc1 Rd3 Qb1 Rf3 Qa1 Qg6 Nf7 b1R h8R Rb2 Nh6 Qf7 Rc8 Rb4 Rc6 Rb2 Rd6 Rb4 Rg5 Bg3 Ra3 Rb2 Qd3 Qhh5 Ne4 Bh2 Nf6 Qhg6 Qde4 Qh7 Qb1 Rh3 Bd3 Bf3 Qd1 Bh1 Qg4 Rf3 Be2 Rc8 Qg1 Rc6 Rg3 Rb6 Ra5 Rb4 Nd4 Rb2 Rag5 R6b4 Nb5 Rd3 Qg6 Bd5 Qe4 Rf3 Nhg8+
2bRQ2b/1nKnPPPq/2b1k3/Q1B3R1/4p3/rNRqNP2/1Q3N1n/3Br3 b - - 0 1 illegal: No proof kernel
7r/1N1Pn3/3NR3/QRK3Pk/bBB2P1n/qr2Bp2/3bbPr1/R1Q1N1q1 b - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 f5 cxd5 b5 a4 f4 axb5 f3 e3 Qd7 Ra5 Qg4 Ra1 Qf4 exf4 Bb7 Na3 Ba6 Nb1 Bc8 d4 Kf7 Kd2 Kg6 Kd3 c5 Kc4 a5 g4 e5 b4 h5 d6 a4 d5 e4 b6 h4 b5 e3 b7 e2 b6 e1R d7 h3 d8N a3 d6 a2 Nd2 h2 Ne2 Nh6 Nd4 Nc6 b8B Bd7 b7 Nf5 Ne4 Ra3 Nc2 Nh4 Be3 Rb3 Qc1 Ne7 Rg1 Ba4 d7 h1B Bd6 Bg7 b8R Bg2 Rb5 Bc3 Nb7 Bd2 Bd3 Rd1 Ne1 Bf1 Rh1 Be2 Rh2 Kg7 g6 Kh6 g7 Kg6 g5 Kh5 Rb1 a1Q g8Q Qa3 Qd5 Rh7 Ra1 Rh8 Ng2 Rf1 Ne1 Rg1 Qe5 Rg3 Qec3 Rg2 Qa5 Ng6 Kd5 c4 Bb4 c3 Bc4 c2 Kc5 Ne7 Ned6 Bc3 Qb1 c1Q Qb2 Qd1 Qc1 Bd2 Nd3 Qg1 Ne1 Kg4 Rh3 Nhg6 Rh6 Nh4 Rg6 Kh5 Re6
1b2qR1n/B2P1QB1/1K1nR3/P3RN1P/q3N3/2P3rp/1Q3r2/NnkB1r1b b - - 0 1 illegal: No proof kernel
4QQq1/NP4Rr/1Q5p/RKn3P1/2n1r1rP/6bP/1n2NBB1/q2bRB1k b - - 0 1 illegal: No possible last move, all moves rejected
4R1N1/bPQr1Q2/P1PNB1k1/qn1p1qN1/3Qb1RK/4R3/2bP2q1/2n1B1r1 b - - 0 1 illegal: No proof kernel
3bb1K1/1N1kr2Q/3nR1NP/1RP1N2r/BQ1BPpB1/2rq3Q/1r1rP3/n7 b - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 h5 gxh5 e5 a4 e4 axb5 e3 fxe3 Nh6 e4 Ng8 Kf2 a5 Kg3 f5 Kf4 g5+ Ke5 d5 h4 d4 b4 g4 c4 f4 b6 g3 c6 g2 b5 d3 c5 a4 h6 d2 h5 a3 b7 a2 h7 Bg4 c7 Ke7 c8B Qa5 h6 Nf6 b6 Qb4 Bb2 Na6 b8Q Be6 b7 Bh3 Qb3 d1R Nf3 g1R Qc7+ Bd7 b8Q Qc4 Bd4 Qb5 Nbd2 Ra7 Nc4 Ne8 Nd6 Rd2 Nb7 Nd6 Bh3 Nb4 Bg4 Rg3 Rhb1 Nc2 Rb2 Ke8 Kf6 Qd3 Ne5 Be7+ Kg7 Bd8 Qc3 Rf8 h8N Rf5 Kg8 Rh5 Rb5 Ke7 Rab1 a1R Nhg6+ Ke8 Rb6 R1a2 R1b5 Na1 Qb4 Bc6 Qh7 Rab2 Bce6 Bd7 Qc8 Re3 Bb3 Bc6 Na5 Re7 Nb7 Bd7 Bf3 Bc6 Qh3 Bd7 Ba4 Bc6 Ng4 Kd7 Ra6 Qb1 Rab6 Rc3 Ra6 Qd3 N4e5+ Kc7 Bg4 Be8 Qf3 Nf5 Re6 Nd6 Qh3 Kc8 Nc6 Kd7 Nce5+
1nk3qB/Rr4BN/1RbPQ3/rB2n1K1/3r2pP/P5r1/b1Rr1QP1/4NN2 b - - 0 1 illegal: No proof kernel
3b1N2/2RN2Q1/bP2KpP1/Bk4R1/4PqP1/br1rb1nB/2n1R2N/2Q1b2B b - - 0 1 illegal: No proof kernel
BrQ3b1/br2B3/KnRPn3/1Q1P2N1/2qNPn2/1n1BbQR1/3p1R1P/4k3 b - - 0 1 illegal: No proof kernel
3bnnR1/1r1b4/k1Ppb1R1/5n1N/N1qQ2Qr/2Q3PP/PBKB1R2/3B2n1 b - - 0 1 illegal: No proof kernel
rrr5/b5N1/2pQ1Qn1/1P1NR3/k2qB3/B1P2K1P/r1n2PQR/1n2bB1R b - - 0 1 legal: proof: g4 e5 e4 b5 a4 h5 axb5 f5 exf5 e4 gxh5 e3 d3 Bb7 Nf3 Bd5 Ng1 Be4 dxe4 Ke7 Qg4 Kf7 Qd1 Ke8 Ke2 g5 b4 d5 b6 Kd7 b7 Kc6 f6 Kb5 e5 a5 h3 c6 e6 a4 f7 g4 e7 g3 e8B a3 h6 a2 h7 d4 Qd3+ Ka4 b5 g2 Ba3 Bc5 f8Q Ba7 Qf3 Ne7 Rh2 Na6 b8R Nb4 Bg6 Qd7 Qfe4 Rc8 Kf3 e2 h8Q e1B Ne2 g1R Qf6 Qd6 Qd2 d3 Ng3 Qd4 Nf5 Rg5 Qd1 d2 Ng7 Rg1 Bf5 Ng6 Rb7 Rg5 Re7 Rh5 Re8 Rh8 Re5 Rhf8 Qd5 Rcb8 Be4 Rfc8 Qc1 d1N Qcg5 Nc3 Qdd6 Rg8 Qg2 Rgc8 Nd2 Nb1 c3 Nc2 Nc4 Rf8 Ne3 Rfc8 Kg3 Nd2 Rd1 a1R Nd5 Nb1 Kf3 Ra2 Bc4 Bd2 Rdh1 Be1 Bf1
1KR5/2r2b1P/q2k1bQb/2B2pR1/BPBP1r1Q/P3r3/n1Rn1Q2/N1r3N1 b - - 0 1 illegal: No proof kernel
2NRr3/k2bb1P1/N1P3Nr/1nB2B1Q/Q4p2/1r1Pq1R1/3R1QP1/b2bnK2 b - - 0 1 illegal: No proof kernel
1B2rR2/4NP2/R2bn1Kb/P4NQr/1P2b3/Qp1r1B2/2B1Pqk1/2nbQ1N1 b - - 0 1 illegal: No proof kernel
2nb2k1/3bPP2/1P6/N2Ppn2/1Q1rnQ2/r1bbR1NR/2QBq3/1K1R1BB1 b - - 0 1 illegal: No possible last move, all moves rejected
3nnq1b/1RNPPr1B/2bP1b2/1nB2RR1/3p3N/Q4Br1/3PK1QQ/k1b5 b - - 0 1 illegal: No proof kernel
2nQ1N2/qp2Qrk1/2n1bB2/1PP1B3/1Q2NRn1/2RP1r2/1bBn1P2/2b1K2N b - - 0 1 illegal: No possible last move, all moves rejected
4rRNr/1R1B1N2/1P1PPQ1R/Qpq1N3/B4b2/q1q3q1/2P5/n1nKB1kb b - - 0 1 illegal: No proof kernel
Q6n/B2BPN2/q1R4P/N2QP1K1/RbB2N2/1QPpn2q/2k1b2r/3q1q1r b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 a5 b4 d5 e4 f5 h4 d4 h6 a4 b6 a3 b5 g6 c3 a2 b7 Qf6 h7 Nh6 h5 Na6 b8Q Nf7 b6 Nb4 b7 Nc2 c6 Bb4 c7 Ne3 Nh3 Qd8 Bd2 Qd7 Na3 Ra5 Qa8 g5+ Kg3 g4 Kf4 g3 b8Q g2 Nc4 g1Q Qba7 Ra3 Na5 Ba6 c8B Be2 Be1 Rb3 Bf2 Rb2 Qc5 Qg6 Qa4 Qf6 Qa3 Qd8 Qb5 Qb6 Rg1 Qa6 Rg4 Rd2 Rb1 a1Q Qbd5+ Ke7 e6 Kf6 Rb2 Qd1 e7 Qde6 Bd7 Rc2 Kg3 f4+ Kh4 f3 e5+ Kf5 Nf4 Rd2 Bg1 f2 Ra2 Rb2 Rg8 Rb1 Rc8 Rc1 Rc6 Rb1 Qb5 Ke4 Qbb7 Rd8 h6 Nh8 Kg5 Qh3 Qb2 Ra1 Ra4 Rc1 Qa3 Ra1 Nd5 Kd3 Nf4+ Kc2 Qb5 Rb8 Qd5 Rb7 Bg2 f1Q Be4+ Kd2 Bd3 Rb8 Bc4 d3 Bf2 Kc2 Bg1 Ng2 Bd4 Ne3 Ba7 Rf8 Ng2 Rf2 Nf4 Ng6 h8N Rh2 Nf7 Nh8 Bb6 Qd2 Bc5 Re1 Ba7 Qd1 Qb5 Qf2 Qc5 Reh1 Qd5 Qff1 Qb3+
1k1r1Qq1/Q2P1nbN/2K1NRb1/QPp2P2/2R1nq2/1BB2B2/4P2q/3N1q1r b - - 0 1 illegal: No proof kernel
Q2nn2k/3PR1BB/5QbP/PBK1P1bR/3rq3/1r1b4/5p2/qQRb1NN1 b - - 0 1 illegal: No possible last move, all moves rejected
1b1Nbn2/1RnPKbq1/2P1B1P1/2r2r2/1Q3b2/1Pp1BQN1/3qN1RQ/k4B2 b - - 0 1 illegal: No proof kernel
2K1NRr1/1P1n4/3N1QP1/1p1rnP2/3q1Rbb/1q4nB/1k2P2B/n1QQR1B1 b - - 0 1 illegal: No proof kernel
KRb1nk2/P1qrr2B/pBrP1Nn1/1RN2q2/6Pb/2Q1NQ2/P2Q4/4r1B1 b - - 0 1 legal: proof: e4 g5 b4 f5 exf5 d5 c4 a6 cxd5 c6 h4 Nd7 hxg5 Bg7 d6 Bf8 b5 Nb8 d7+ Kf7 Na3 Qb6 Nb1 Qa7 b6 Bh6 bxa7 Bf8 Ke2 e5 Kd3 b5 Ke4 h5 d8B h4 g4 c5 Kd5 b4 d4 e4 f4 h3 g6+ Kg7 f6+ Kh6 g7 h2 f5+ e3 f7 c4 f6 c3 Ne2 c2 Ng3 b3 Bd3 b2 Nf5+ Kg6 Qd2 e2 Bb6 e1Q Nc3 b1R Ne3+ Kh6 Na4 Nc6 Nc5 Ne5 Bh7 Ng6 Kc6 Qg3 d5 Be7 f8Q Qb8 f7 Bh4 d6 Nf6 Qe7 Re8 g8N+ Kg7 Qe5 Kf8 Qec3 Re7 Bb2 Rc1 Rb1 Ne8 Nf6 Re1 Bc1 Rd7 Rb5 Re7 Rf1 h1Q+ Rf3 Qg1 Rf4 Qf1 Rfb4 Qf5 Rb2 Be6 R2b3 Qd8 Rb2 Bd7+ Kb7 Rc8 R2b3 Rc6 Bb2 Qc7+ Ka8 c1R Ba3 Kg7 Bb4 Bc8 B4a5 Kh6 f8Q+ Ng7 Ne6 Rc4 Bd4 Qf1 Rb8 Rb1 R3b7 Qd8 Be5 Rc6 Nh5 Qb6 Qf7 Ne8 Nc5 Qf6 Qfd5 Qf5 Nf6 Kg7 Qf3 Kf8 Bh2 Rb5 Bg1 Rd7 Nce4 Re5 Nc5 Qc7 Rb5 Ree7 Bb6
1k4Rr/p1n2PNn/2KQ1q2/P1nRN1R1/Q1n3Q1/1r4bB/P1BP3r/B1n5 b - - 0 1 legal: proof: h4 d5 e4 g5 hxg5 f5 exf5 d4 b3 d3 cxd3 Nd7 d4 Nb8 d5 Bd7 Rh4 Nf6 Rh1 Ba4 bxa4 Ng8 Ke2 Kd7 Kf3 Kc8 Ke4 e5 f4 c5 g4 h5 a5 b5 f6 c4 g6 c3 d6 b4 Kd5 b3 f7 e4 g5 h4 d7+ Kc7 g7 c2 f5 e3 f6 h3 g6 b2 Nf3 h2 Bh3 e2 Na3 b1N Rg1 e1N Rg5 h1R Nb5+ Kb7 Nc7 Rh2 Ne5 Rh6 Bb2 c1N Qa4 Ba3 f8Q Na6 f7 Rh5 Ne8 Rh8 Qd6 Qf6 d8R Rb8 Bc3 Ka8 Kc6 Ned3 Bd4 Ndc5 Rd7 Nh6 g8B Rb3 g7 Ng4 Bh7 Nc7 g8Q Kb8 Bc2 Bb4 Qg6 Na3 Rb1 Nc4 Ba1 Bc3 Qf5 Bd4 Rg8 Bf2 Qg6 Nge3 Qg4 Bg3 Rb2 Nd5 Rb1 N1d3 Rf1 Nc1 Rf5 Qe7 Rfg5 Nf6 Qd3 Nh7 Rd5 Qd8 Qg6 Qe7 Qd6 Qf6 Ng7+
n1qb3q/rR1pn1B1/R1P1NPN1/2PP4/2B4k/Q2Q1Q2/1Rnnn1r1/3K2B1 b - - 0 1 legal: proof: e4 b5 g4 c5 b4 h5 bxc5 f5 gxh5 b4 exf5 Ba6 a4 Bb5 axb5 Rh7 Ne2 Rh6 Ng1 Rh8 h4 Kf7 f4 Kf6 d4 a5 c4 g5 d5 e5 h6 b3 h5 e4 b6 g4 b7 g3 h7 g2 h6 e3 c6 e2 c5 b2 Nc3 b1Q Qd3 a4 Ne4+ Kf7 f6 Kg6 f7 a3 Rh2 a2 Ng5+ Kf6 f5 Qb2 N1h3 g1N Be3 Ra7 Ne6 Qc8 Nhf4 Na6 b8R Nc7 Rb7 Na8 Ng6 Be7 f8B Bd8 Bg7+ Kf7 Rf2 Ne7 f6 Rg8 h8Q Qb4+ Qc3 Qh4 h7 Qh2 Kd2 e1N Qd3 Nef3+ Kd1 Nd2 Rg2 Ne2 Bg1 Qh5 Qf3 Nc1 Bc4 Ne2 Rab1 a1N R1b6 Nc2 Ra6 Qh4 Qa3 Nf1 Rg3 Qh2 Rgb3 Nd2 Rb2 Qh1 Ne5+ Ke8 Bf8 Rg3 Qg8 Qh2 Qg4 Rg2 h8Q Qh1 Qh7 Qh6 Qhd3 Qh8 Nf3 Kf7 Qf4 Rg6 Nh4 Rg2 Nf5 Kg6 Bg7 Kh5 Nh4 Rh2 Qf2 Rg2 Ng6 Kg4 Ne5+ Kh5 Qff3+ Kh4 Ng6+
2q3r1/1Q3RN1/1bPb2qP/k2bN1np/1R1Pb2K/1B3RnP/2n1B2B/2N4Q b - - 0 1 illegal: No proof kernel
1B1k3Q/4Rb2/1qPP2B1/NpB3Pq/N1rR3b/6qq/rP1Q1r1Q/1KN4n b - - 0 1 illegal: No proof kernel
2n3r1/BP1K2k1/QqPnp3/1Q4NB/nB2RQr1/1bP3q1/4Pn2/1R2NN1q b - - 0 1 legal: proof: d4 c5 dxc5 b5 f4 g5 fxg5 b4 g4 e6 h4 b3 g6 Bd6 h5 Qf6 g5 Qd4 h6 Qf6 axb3 Be5 b4 Qd8 b5 Bg7 hxg7 Qf6 Na3 Qe7 Nb1 Qd8 Kd2 f5 Ke3 d5 Kf4 h5 Ke5 a5 b4 f4 b6 a4 c3 f3 c6 a3 b7 a2 b5 d4 b6 f2 Ba3 h4 Nd2 d3 Ngf3 h3 Qa4 h2 Bb4 Nd7+ Kd6 Rh6 b8B Ngf6 g8N Kf8 Ba7 Kg7 Qa6 Rh4 Bh3 f1Q Nh6 Qg1 Ne1 Rg4 Nf1 d2 Nf7 d1N Rb1 a1N Bg2 Nb3 Bf3 Nf2 b7 Qb6 Ke7 Qg3 Rg1 h1Q Rg2 Rh4 Bh5 Nbc5 Rh2 Rf4 Rh4 Ne8 Rg4 Rd4 Re4 Nd6 Qb5 Na4 Qa6 Kg8 g7 Kh7 Nd8 Rc4 g6+ Kh6 g8Q Rb8 Re5 Rg4 Qf7 Ra8 Qf3 Kg7 Re4 Kh8 Qf4 Qc7 Rd4 Ndb6+ Kf8 Bd7 Ke7 Kg8 g7 Be8+ Kf6 Bg6 Nf7 Be4 Ng5 Bc2 Rc4 Bb3 Re4 Nd7+ Ke7 Qa5 Qc4 Ndb6 Qd3 Rf8 Qa6 Nbc8+ Kd7 Qc5 Ngf3 Kh7 Ng5+ Kh6 g8Q Qb6 Qgf7 Rg8 Q7f5 Kg7 Qfb5
N1r2nQ1/p2b1B1n/P1R2P1b/6Pb/1QnN3k/1b1rN2P/2B1R3/1Q2B1bK b - - 0 1 illegal: No proof kernel
nR1k3B/n3n1BN/r1rb1p2/PP1P2r1/1q2BPNr/R6Q/1N1RK2Q/n7 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 d5 exd5 b5 g4 b4 gxh5 Bd7 c4 Bb5 cxb5 Qd7 Qg4 Qd6 Qd1 Qd8 f4 c5 h4 g5 a4 e5 d4 b3 d6 e4 a6 b2 h6 c4 h7 g4 h5 g3 d5 c3 a5 c2 h6 g2 d7+ Ke7 a7 e3 Qd3 e2 Nc3 b1R Qh3 Nc6 Nf3 g1N Ne5 Nf3+ Kf2 e1R Bb2 c1N Rh2 Nfd4 Ng4 Re6 Bg2 Ncb3 Be4 Rg1 Ra3 Na1 Nd1 Qb6 d8N Qc5 Bc3 Qb4 Nb2 Ke8 Ke3 Bd6 Rd2 Nge7 Qh2 Rc8 a8R Na7 Rb8 Rc6 Qh3 Rg6 Ne6+ Kd7 Ng5 Ne6 Bg7 Nc7 Kd3 Na8 Ke2 Ra6 Qh2 f6 Qh3 Rc1 Qh2 Rcc6 Qh3 Re8 h8Q Rec8 Nh7 Rg5 Qe8+ Kc7 Qeh5 Rg8 Q5h4 Rh5 Qf2 Rh4 Qfh2 Kd7 Ng5 Kc7 h7 Kd7 h8B Kc7 Nh7 Kd7 Bh6 Rg5 B6g7 Kc7 Rb6 Kd8 Rb8+
1R2RK1n/r3B3/Q2r1N2/1p2PP1r/p2bB2q/bPNk2B1/1RbN1QP1/5n2 b - - 0 1 illegal: No proof kernel
1b5n/q1N4R/1B2Qr1p/1Kb1P2B/2r4P/2PpRN2/bRnQ2kP/QB5r b - - 0 1 legal: proof: f4 b5 a4 e5 axb5 c5 fxe5 c4 g3 Qh4 gxh4 c3 dxc3 Nf6 c4 Ng8 c5 Bb7 Bf4 Ba6 Bc1 Bc8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 b6 Kg4 b7 a5+ Kb5 d5 b4 g5 c3 f5 c6 a4 c7 h6 e6 f4 e4+ f3 e5 d4 e7 d3 e8R a3 Ra2 Bd6 Rb2 a2 Na3 a1Q Be2 Ne7 Be3 Na6 b8Q Ng6 Qb6 Be6 c8B Bb8 Re7 Rf8 Qd2 Nh8 Rh7 Rf6 Bd1 Qa2 Bc2 f2 Bb1 f1R Nf3 Kh3 Qc6 g4 Bb6 Rd1 Re1 g3 Re3 g2 Bd7 g1B Be8 Bf2 Bh5 Kg2 Qd7 Bd5 Qe6 Rg1 Nc4 Qa1 Nd6 Ba2 Ne8 Rh1 Nc7 Ra7 Kc6 Rb7 b5 Ra7 Bd4 Rb7 b6 Nb4+ Kb5 Nc2 Bc5 Ra7 b7 Ra4 Bb6 Rc4 Qc1 Ba7 b8Q Bg1 Qa8 Bb8 Re1 Bc5 Re3 Bb3 Qe1 Qa7 Qd1 Ba2 Qc1 Qb7 Qa4 Qa7 Qa5 Bb3 Qa1 Ba2 Qd2+
QN3BN1/3nR3/pQb3bP/QP2PPbq/1K1R2r1/R4pr1/5nBn/B1k5 b - - 0 1 illegal: No proof kernel
1rQK1RBr/1Q1R1P2/1P1B1p2/P2N2n1/1bn1q3/n3rP2/b3p1k1/BN2Q2N b - - 0 1 illegal: No proof kernel
2q1N1nN/1r1P2b1/BBkPQ3/2p1bQ1B/1PrR3K/1rPQ3p/1N6/1R3bn1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 exd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Kd7 Kg3 h5 b4 a5 d4 f5 c3 a4 d6 c6 d5 a3 b6 a2 g6 Bh6 e6+ Ke8 d7+ Ke7 d6+ Kf8 b7 Ra7 Nh3 Bg7 Ng5 f4+ Kh4 f3 g4 f2 Ba6 f1R Qd3 c5 Nd2 Be5 Rb1 a1B Nc4 Nc6 b8Q Rb7 Nb2 Nd4 e7+ Kg7 e8B Kf6 g7 Ne2 Nf7 Ke6+ g5 Ng1 Qa8 Qc7 g6 Rh7 Qf5+ Kd5 Nh8 Kc6 Bg5 Re1 Bd8 Re2 Kg5 h4 Qa7 Qb8 Bb6 h3 Rd1 Re1 Rd4 Rb1 Bf7 Rh4 Qa8 Ne7 g8N Bg7 Nf6 Ng8 Ne8 Qc7 Rd2 Rc4 Rd4 Be5 g7 Qb8 Nd3 Bb2 Kh4 Bc1 Bh5 Rb3 Nb2 Bh6 Qa7 Nf6 g8Q Bg7 Qge6 Ng8 Qd3 Rc7 Qa8+ Bb7 Qa7 Qc8 Qdf5 Ba8 Qb8 Rb7 Qa7 Ne2 Ra1 Ng1 Rb1 Rb8 Re4 Rd4 Qh6 Kd5 Bd3 Bc6 Qhg6 Bb5 Qge6+ Kc6 Qa6 Rb7 Bf1 Bd3 Rg4 Be4 Qe2 Bg2 Qd1 Re4 Ba6 Rc4 Rd4 Bf1 Qdd3
qQRN4/4Q3/6nQ/NNpPP2p/nPP1Bb2/1b1R1Bnq/4rk1r/K1B5 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 exd3 Bb7 d4 Ba6 d5 Bc8 g4 Ke7 c4 a5 b4 f5 d4 h5 Kd2 c5 Kc3 a4 Kb2 f4 d6+ Ke6 g6 f3 b6 f2 d7 Qg5 b7 Ne7 g7 Qh4 g5 Kf5 g8B Ke4 d8N Ng6 d5 Be7 Na3 Bf5 Ne2 Kf3 Nb5 Nd7 b8Q Nb6 Bh7 Qh3 Qd2 Rg8 Ned4+ Kg3 Qc7 Bc2 Bg2 f1N Bf3 Bb3 N4c6 a3+ Kb1 Na4 Na5 Bf8 Qe7 Bh6 Ra2 Rf8 Ka1 Rf4 Rh2 Re4 Qe3 Ra6 Rhd2 Rf6 Rd3 Rff4 Rc2 a2 Rf2 Rh4 Qd2 Re2 Qe3 Nh8 g6 Bf4 g7 Ng6 g8Q Qe6 Nd4 Rh2 Nb5 Qh3 Qd2 Ne3 Rf1 Nf5 Rg1+ Kf2 Qgf8 Ngh4 Rg8 Ng3 Bhe4 Ng6 Qfe8 Bh6 Qf4 Bg5 Qff8 Bf4 Qh6 Qf1 Ne6 Nc3 Nc6 Bc2 Qb8 Qh3 Rc8 Bd1 Ned8 Bb3 Bd2 Nb1 Kb2 a1Q+ Kc1 Qa8 Kb2 Nc3 Na5 Na4+ Ka1 Qg4 Bc1 Qh4 Rd1 Qh3 Rd3
1b3r2/QKB2q2/RP6/1B2bNqP/Rp3Np1/2Qrn2Q/1P1n2PB/r2N2k1 b - - 0 1 legal: proof: c4 b5 a4 f5 e4 h5 exf5 d5 cxd5 b4 Qxh5+ Kd7 Qh6 Ba6 Qh7 Bb5 axb5 Ke8 Ke2 Kf7 Ke3 Kf6 Kd4 Kg5 Kc5 Kf4 h4 e5+ d6 a5 d4+ Ke4 f4 g5 d5 a4 b6 a3 h5 a2 Nf3 g4 Nh4 c6 Bb5 Qe8 f6+ Qg6 f7 Ra3 f5 Bg7 f8N Nf6 d7 Na6+ Kd6 c5 Kc6 c4 d8B c3 d6 c2 d7 Rh3 Bf4 Nc7 Ne6 Ncd5 Bh2 Ke3 Nc3 Ne4 f6 Kf2 f7 c1B f8Q+ Bf4 Qf6 Qg5 Rhb1 Rf8 Nd1+ Ke1 Rc1 Nd2 Rc3 e4 Ra3 e3 Qc3 e2 Ra6 Kf1 Qhd3 Qf5 Qg3 Qh7 Nf5 Bb8 Qc7 Re3 Qa7 Bge5 Kb7 Qf7 Bc7 Rg3 d8Q Rd3 Bg3 Kg1 Qh4 e1Q Nde3 Nf3 Qh3 Qc1 Nd1 Qg5 Nf4 Nd2 Rc1 Ne3 Rb1 a1R Rc1 Ra3 Ra1 Rb3 R1a5 Ra3 Ra4 Ra1 Bh2+
5N1K/r1bq3n/1PQ2np1/P1pq3Q/6QP/1RB4b/qrPNRN2/4BBk1 b - - 0 1 illegal: No proof kernel
B3n2b/1Q2B1qP/1p3N2/P2r4/1PR2kP1/r1QR1qqn/1Kp2NB1/N2Q3b b - - 0 1 illegal: No proof kernel
Nbq3nN/6kp/1Q6/2Pn1prq/B1NKBP1B/1P2R1RP/4b3/QrQ3r1 b - - 0 1 legal: proof: g4 e5 d4 f5 dxe5 c5 g5 b5 Nd2 c4 Nb1 c3 bxc3 Qf6 gxf6 b4 Qd5 b3 axb3 Bc5 Qd1 Bf8 Kd2 Kf7 Kd3 d5 e4 a5 e6+ Kg6 e5 a4 e7 a3 e8N a2 f7 d4 e6 Ra5 e7 Nf6 c4 Rb5 h3 Nbd7 c5 Rb4 c4 Rb7 c6 Nh5 c7 Rb4 Na3 Ndf6 Ne2 Rg8 Bg5 Ba6 c8Q Nd5 Rg1 Ra4 Nc7 Nhf6 e8B Bd6 Na8 Bb8 Bg2 Ra5 Rb1 a1Q Ba4 Rc5 Rb2 Qc1 Bh4 Kh6 f3 g5 Nf4 g4 Ng6 g3 f4 Kg7 Be4 g2 Nh8 Rc6 Re1 g1R Re3 Rg5 Rg2 Rc7 Ke2 d3+ Kf3 d2 Rg3 Qc3 Qa1 d1Q+ Kf2 Qcc1 Qe6 Qh5 Qb6 Qc3 Qc1 Ra7 c5 Be2 Nc4 Qa1 Bd7 Qa6 Bb5 Qc8 Ba4 Kh6 f8Q+ R8g7 Qa5 Ng8 Qf6+ R7g6 Qfb6 Kg7 Rgf3 Rg1 Rg3 Rg5 Qac3+ Ndf6 Q1a1 Rd7 Qcc1 Rdd1 Rc3 Rdf1+ Ke3 Nd5+ Kd4 Re1 Rce3 Ref1 Qcb2 Rb1 Qc1
b2Rb3/4qp2/2PN1pQ1/2PBq2N/nbQ1r1R1/P3rkP1/1RKn2B1/2Q1B3 b - - 0 1 illegal: Other
3R2R1/n2RP1P1/3pp2r/2BP4/1K1n2N1/3kPNqr/qbNQ3Q/1BqQ3b b - - 0 1 illegal: No possible last move, all moves rejected
bN6/3PPKp1/1N5k/3Bp3/1b1nrPPQ/N1RQ1bqr/3q2B1/1nR3BR b - - 0 1 illegal: No possible last move
rRqQ2RB/3p2Nb/RQ2BPQK/8/nrk1P2P/1Nnq4/1p2N2P/b4n2 b - - 0 1 illegal: No proof kernel
Q3NK2/2P1nR1Q/1b2bp1B/6P1/2R1qn2/PBNpqkPR/1n5r/5rNQ b - - 0 1 illegal: No possible last move
n6Q/1pP1p1P1/QP1Bb1N1/NB5q/kbrRBq2/r1R1bn2/NP2R3/K7 b - - 0 1 illegal: No possible last move, all moves rejected
1n2r2r/1r4Q1/1NB1q2B/n3pB2/b1Q1PP1R/N2K1b1R/1P1N2Pp/3k1r1Q b - - 0 1 illegal: No proof kernel
3K1bN1/1R5p/6P1/P2RNnQr/1b3pR1/nQ1P1N1b/1Pk1br1q/2B2B1Q b - - 0 1 illegal: No proof kernel
1r1Q2R1/1bb2np1/2n1P2R/2N2k1R/2PQ4/1BNPbprb/P1K5/qN2B1Q1 b - - 0 1 illegal: No proof kernel
2R1n1N1/2P4r/KR1B2Bb/1rPPn3/1r1p3Q/3BrQ2/1k1p2P1/1bN2qQN b - - 0 1 illegal: Other
4N3/1R1Q4/1KR1rBrb/2Pr3b/1kB1R1pp/1n4PN/P1P1Qb1q/4qB1Q b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 d4 Nc6 dxc5 Ne5 h4 g4 Ne2 Nf7 Ng1 Ng5 hxg5 Bg7 Bb5 Bh6 Bf1 Bf8 Kd2 e5 Kd3 b5 f4 d5 g6 Kd7 f6 Kc6 g3 h5 f7 b4 a6 Kb5 a7 h4 f5 d4 g7 b3 f6 b2 Na3+ Kb4 Bh6 b1Q Qe2 Be6 Nb5 Qe1 Bg5 Ne7 g8B Nc6 Nh3 Rh6 Nd6 Na5 Rb1+ Nb3 Ne8 Rg6 Rh2 Rc8 a8Q Bh6 f8Q Bf7 Qe7 Rc6 Qd7 Re6 Qh1 Qa8 Rf2 Qg2 Rf4 Qh2 Ke4 d3 Kd5+ e4 Rb2 Re7+ Kc6 d2 Kb6 d1R Rb1 Rd4 Rb2 e3 Re4 Rg7 Rb1 Bh5 f7 Rg6+ Bf6 Re5 f8R Re7 Qf2 e2 Bc4 Rd5 Rf7 Qd1 Qe3 e1B Qe2 Bf2 Rh7 Qe1 Rd1 Rde5 Rd6 R7e6 Rc6 Rf5 Qd4 Rd5 Rb7 Rde5 Qd8 Rd5 Qd7
5R1K/P4B2/1nn2Q2/1q1brP2/2p4n/NpBR2bQ/RP1Q1P1B/kN1b3q b - - 0 1 illegal: No possible last move
1N4RK/pQ1rq3/PnN1R2P/4P1pN/1q2QR1q/3PBB2/5n2/Qkn2r1b b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 e4 e5 exd5 e4 b4 Bd6 bxc5 Be5 fxe5 Rh6 Bh3 Rh7 Bf1 Rh8 Kf2 Kd7 Ke3 b5 Kf4 g5+ Kf5 b4 c4 e3 a4 b3 h4 e2 d6 Kc6+ d7 e1Q a5 f6 Kg6 f5 Kg7 b2 a6 f4 d3 f3 h6 f2 h7 Qe4 h5 Qe8 d8N+ Kc7 c6 Kb6 c7 Kc5 Ra4 Kd4 c5+ Kd5 c6 Bb7 c8R Nf6 c7 Qd4 Nc3+ Kc5 Na2 b1Q Ne2 Qe4 Nc6 Ng4 Bg2 f1N Nf4 Nd7 Nab4 Rf8 h8Q Ng3 Qh7 Nb6 Bf3 Ne2 Nb8 Kd4 Be3+ Kc3 N4c6 Qbb4 Qa1+ Kc2 h6 Rf5 Rb1 Nc1 Nh5 Qee7+ Kh8 Nf2 Rg8 Qh4 c8Q Rf8 Rb3 Rd8 Qe4 Rd7 Na5+ Bc6 Qb7 Bd5 Nbc6 Rf8 Nb8 Qe1 Rb5 Q1b4 Nac6 Rf4 Qg6 Be4 Rd5 Rf7 Rd6 Bd5 Re6 Rf8 Bg4 Bh1 Qe4 Rf7 Bf3 Rf5 Qc3+ Kb1 Qcd4 Qbd6 Rc4 Qb4 Qc3 Rf4 Rd4 Rf8 Qa1+ Kc2 Be2 Nd1 Qg2 Rf1 Rf4 Nf2 Bg4 Rc7 Qe4 Rd7 Qa3 Kb1 Bf3 Qb3 Qaa4 Qbb4 Qa1+
3Q1n1K/4R3/R5q1/rP1pn1Q1/1N1kb1Np/1Q3nPq/P2qr1RP/4BBB1 b - - 0 1 illegal: No proof kernel
BRN2K1b/2n2Nn1/P1q1R1bp/R1NpP3/1P3B2/QBqP4/5r2/kn1b3Q b - - 0 1 legal: proof: h4 b5 f4 a5 b4 e5 bxa5 g5 fxe5 b4 hxg5 b3 c3 Ra6 Bb2 Rb6 Bc1 Rb4 cxb4 Qe7 Bb2 Qf6 Bc1 Qd8 Kf2 Ke7 Ke3 Ke6 Ke4 c5 g4 f6 a4 d6 a6 h6 a5 b2 d3 c4 g6 c3 a7 c2 a8Q Na6 g5 Qe7 g7 Nc7 g6 Nb5 Nd2 b1N Nh3 Qd7 Nb3 Qe7 Bf4 c1Q Bg2 Qd7 Re1 Ne7 g8N Qc3 g7 Nf5 Ne7 Rh7 g8B+ Rf7 a6 Ng7 Ra5 Nc7 Qc1 Qe8 Qa3 Bd7 Nc8 f5+ Kf3 Bb5 e4 Qec6 Re2 Be7 Re3 Bf6 Ng5+ Kd7 Bh1 Rf8 Nf7 Ke6 Bh2 f4 Kg4 f3 Bf4 f2 Qb7 Nge8 Kh5 f1B Kg6 Be2 Bf3 Bh8 Bh1 Ng7 Qa8 Kd7 e6+ Ke8 e7 Kd7 e8R Bd1 Rd8+ Ke6 Kh7 Bc4 Nc5+ Kf6 Ne7 Be6 Rb8 Beg4 Nc8 Bh5 Nd8 Be8 Ba2 Beh5 Bg2 Rf7 Kg8 Bg6 Bg5+ Ke5 Bf4+ Kd4 Bh1 Rf6 Nf7 Rf5 Kf8 Rf6 Bg5 Rf2 Bf4 Qb3 Qb7 Kc3 Qa8 Qb5 Qd5 Qc6 Bg2 Kc2 Qh5 Qc4 Qh1 Qc3 Rg3 Qb6 Rg5 Qb5 Re5 Qb7 Re6 Qb5 Qa4+ Kb2 e5 Ka1 Ba8 d5 Qa3 Qc6 Bb3+
1n4Nq/1Pn1r2n/2RbQN1K/1P2p1B1/Bp5R/4b2R/1P2PqN1/1qB2k1Q b - - 1 2 illegal: No proof kernel
3q4/rrQ1R1B1/1pqB3K/1BP1P3/pbn1N1b1/b2k1qR1/PPQ1N2R/2Q5 b - - 1 2 legal: proof: f4 e5 fxe5 h5 g4 c5 gxh5 Qc7 d4 Qb6 dxc5 Qd8 Kd2 Ke7 Ke3 Ke6 Kf4 f5 h4 g5+ Kg3 a5 c4 d5 e4 g4 Kf4 g3 c6 g2 h6 b6 h7 d4 h5 d3 c7 d2 h6 a4 Rh2 Ra7 Ne2 g1B Nbc3 Nf6 Kg5 f4 Rb1 Ba3 c5 f3 Ra1 Rf8 h8Q f2 h7 Nc6 Kh6 Nd4 Rb1 Bd7 c8Q Ne8 Qc7 Rf7 Qg7 Nd6 h8B Bc8 Qg5 Nc2 Bg7 Nc4 Qe1 d1Q Bf4 Qc1 Ra1 Qcd2 Qb1 Q2d6 Bg3 Rd7 Qgc1 Qc6 Bf4 Ke7+ e6 Rb7 Bf8+ Kf6 B4d6 Ra7 e5+ Kf5 e7 Rb7 Nb5 Ke4 e8R Kd3 Nbc3 Re7 Bg7 Bg4 Ne4 Ra7 Bg2 f1Q Bh3 Qf3 Bf1 Rf7 Re7 Bf2 Bh3 Bc8 Bd7 Be1 Be8 Bg4 Bd7 Qca8 Bb5 Qc6 Qf4 Qg3 Re6 Bh5 Qc8 Rab7 Qd1+ Bd2 Rb1 Rfd7 Re7 Ra7 Qg5 Rdb7 Qc7 Bg4 Qh1 Qce8 Rg1 Qf4 Rg3+ Qf3 Qb1 Bdb4 Qgc1 Qc6 Qbxc2#
5QKN/k4nQp/Nbq1bpQ1/3P1brP/5B1B/Pb1P3b/3R3R/2R1n2B b - - 0 1 illegal: Other
4B3/5P1R/1r1Qbp1b/nQ1p3K/N2Rr1P1/1R1P1Pq1/r1rN1rN1/B2k1B2 b - - 1 2 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f6 axb5 Kf7 b4 Nc6 bxc5 Ke6 e5 Kd5 e6 Ne5 Ra4 Nf7 exf7 Ke5 Ra1 Ke6 Ke2 Kf5 Kf3 e5 c4 a5 c6 h5 b6 a4 b7 a3 b8Q a2 c5 h4 c7 d6 g6 h3 g7 h2 c6 Ra6 Qb5 Be6 c8N Qc7 Ne2 Ne7 g8R Rh6 Kg3 Ke4 Nf4 Kd4 f3 e4 Rg4 e3 Ba3 e2 Nb6 e1R Na4 Rb6 Bb4 Qb8 c7 Nc6 c8B Na5 Bd7 Rh4 Be8 Re2 d3 Ke3 Bc3 d5 Qc1+ Rd2 Qa3 Rc2 Nd2 Qc7 Rb1 a1R Qab4 Raa2 Ba1 Qe5 Qd6 Bg7 Rg1 h1R Rb3 Bf8 Rg7 R1h2 Rh7 Bh6 Rh1 Rh5 Rg1 Rf5 Kg4 Kf2 g3 Ke1 Rh1 Rf2 Rh4 Kd1 Ng2 Qf4+ Kh3 Qg5 Rd4 Re5+ g4 Qf4 Kh4 Re4 Kh5 Qh2+ Kg6 Qg3 Kh5
1K3k1r/4q2q/B1PN2q1/b1PRN2p/2b1qpR1/Q1B2P2/3RnnP1/3N1B1Q b - - 0 1 legal: proof: e4 c5 a4 g5 h4 d5 hxg5 b5 axb5 a5 d4 Ra6 dxc5 d4 Qe2 Rd6 Qd1 Rd5 exd5 Bg4 Rh3 Bf5 Rh1 Bc8 Kd2 h5 Kd3 e5 Ke4 a4 b4 f6 c4 a3 b6 d3 c6 d2 b7 a2 d6 f5+ Kd5 e4 c5 f4 d7+ Kf7 g6+ Kg7 b5 e3 b6 e2 Rh4 e1Q Rg4 Qf6 d8N Qe3 Bb2 Qe8 Bc3 Bd7 Nf7 Bf5 Nf3 Bd6 N3e5 Bd3 f3 Na6 b8R Qfe7 b7 Nh6 Rd8 Bc7 b8Q Ba5 Qb2 Nf5 Nd6 Nd4 Qa3 Kf8 Qe1 d1Q g7+ Kg8 Qh4 Qe1 Qh1 Ne2 Rd7 Qg6 Rd8+ Kh7 g8B+ Kg7 Be6 Bb5 Bc8 Bd3 Rd7 Kf8 Bb7 Qeh7 Bc8 Qe4+ Ke6 Nb4 Bb7 Qh4 Ba6 Qg5 Rd8+ Kg7 Kd7 Bc4 Kc8 Qgg6 Kb8 Nd3 Bd2 Nf2 Nc3 Nh3 Rc1 a1Q Nd1 Nf2 Rc2 Qc1 Bc3 Qce3 Ne8+ Kf8 Rcd2 Bb4 R8d5 Ba5 Nd3 Qee7 Nd6 Q3e4 Ne5
qR2B3/1r3BP1/2pPr3/N1P1kN1K/2PRRN2/QQ1n3p/n2B2qn/1n2b3 b - - 0 1 illegal: No possible last move, all moves rejected
1BB3n1/3QNN2/5Q2/R1r1pK1B/2q1r1R1/1P2Pk1n/1PnpRPQb/1q4n1 b - - 0 1 legal: proof: g4 c5 d4 g5 dxc5 b5 h3 f5 Nd2 b4 Nb1 b3 axb3 Bb7 gxf5 g4 Ra6 g3 Ra3 Bf3 Ra1 Bg4 hxg4 Bh6 Nh3 Bg7 Ng1 Bf8 Kd2 Kf7 Ke3 Kf6 Ke4 a5 c4 h5 c6 a4 c5 a3 c7 g2 c8B a2 c6 h4 c7 h3 Nf3 g1N Bf4 h2 e3 Na6 Ng5 Nb4 Nc3 Rh4 Nf7 Ra5 Be2 Nd3 Qf1 Rc5 Bg3 Nf4 g5+ Kg7 f6+ Kg6 Nd5 Nfh3+ Ke5 e6 Re1 a1N Bf4 Nc2 Bh5+ Kh7 Re2 Bd6+ Ke4 Be5 Ne7 d5+ Kd3 d4 Ke4 Nf3 Rg1 h1Q Rg4 d3 Bh2 d2 Bg3 Bc3 Bh2 Qd6 Bg3 Bb4 Be5 Qa6 Bd6 e5 Kf5 Ba3 Ra4 Qc4 Ra5 Bb4 Bd7 Ba3 c8Q Nfg1 Bb8 Re4 Qe8 Bb4 Bc8 Ba3 Qd7 Bb4 Nd6 Ba3 g6+ Kh6 f7 Bb4 Ra7 Ba5 g7 Bd8 Ng6 Bf6 f8Q Bg5 Ra5 Bf4 Ne7 Bh2 Bf3 Rg4 Nf7+ Kh5 Qfd8 Kh4 Qb6 Rd4 Bh5 Re4 Qf6+ Ng5 Qd1 Kh3 Qc1 Kg2 Qb1 N5h3 Qd1 Rg4 Qf1+ Kf3 Qg6 Nf6 Qd1 Qg2 g8R Qf1 Rg7 Ng8 Qf6 Qe1 Qa1 Qb1 Rg5 Qa2 Qf1 Qb1 Bg6 Rd4 Rg4 Re4 Bh5 Qe1 Qa4 Qc1 Qd7 Qb1 Qg2+
nb4B1/3Q1BP1/p2BNpk1/1b1Q2q1/P2N1r1q/1RP1Q2R/P4R1n/2b2b1K b - - 0 1 illegal: No possible last move, all moves rejected
q7/rp2QN2/Bb4P1/RRB4b/1P3NpK/1q1Rb3/1bB2PPk/r3Q1nQ b - - 1 2 illegal: No possible last move
2B2Q1K/2r1R3/Pr1P1nB1/3n4/N1nPp3/1pb3k1/N2nPrNB/RRQ4b b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 h4 Ra7 g4 Kd7 g6 Bg7 g5 Bf8 h5 Ke8 g7 Qd6 Nf3 Qg6 hxg6 Ra6 Ng1 Ra8 Kf2 Kd7 Kg3 Kd6 Kf4 c5 a4 h5 a6 b5 a5 f5 a7 e5+ Ke3 c4 a6 h4 d3 f4+ Ke4 b4 Bg2 f3 Nh3 f2 Nc3 f1N Be3 b3 Na2 c3 Nf4 c2 Bh3 Nd7 Kf5 Rb8 a8N c1N Nb6 Rh7 Na4 Bb7 d4 Nb6 Qc2 Nd2 Qc8 Nd3 Rhb1 Be7 Qc1 Nb4 Bg1 Nbc4 Bg4 h3 Bh5 Nf6 g8B h2 g7 Ne8 Kg6 Ba8 Bg4 Rb6 Bf7 Bc6 g8Q Nf6 Qf8 h1R Bh2 Rg1 Bc8 Rg2 Bg1 Rf2 Be8 Bd7 Bf7 e4 Be8 Bh3 Bf7 Bg2 Be8 Bh1 Ng2 Rg7+ Kh6 Nh5 g6 Rgf7 g7 Nf6 g8R Rg7 Bh5 Rf7 Qg7 Bf8 Bg6 Rc7 Bb7 Be7 Qf8 Kd7 Kg7 Bc5 d6 Ke6+ Bf7+ Kf5 Kh8 Nbd5 Bg6+ Kg4 Rg7 Bb4 Bc8+ Kg3 Re7 Bc3 Bh2+
K2k4/B6n/1QBpRN2/R3R1PP/Qn2PbQp/2Bb1p1P/r6q/2N2br1 b - - 0 1 illegal: No proof kernel
r2rkN2/1pP3bP/N1pp4/2b1nR1Q/2q1n1P1/BP1BQR2/1BQ1r1R1/5K2 b - - 0 1 illegal: No proof kernel
8/p2N1bNk/PQq4N/1P1b1B2/1Q2Q1Pp/1R3P1r/rnb3Rp/1R1nK1B1 b - - 0 1 illegal: Other
3BNR1Q/1N1n4/1B1Kb1P1/6p1/P1R2r2/2rnq1b1/P1pp2BP/kQQ1q2N b - - 0 1 illegal: No possible last move, all moves rejected
4n2N/5BBQ/K1bq2P1/2pqN1P1/1r2pR2/2P1r1PR/2NpkR1Q/n1b3B1 b - - 0 1 illegal: No possible last move, all moves rejected
QR3N2/N2n2k1/5pRq/1B4rp/1p1P3B/5PPP/bB2QNrq/R1K2nb1 b - - 0 1 illegal: No possible last move
K7/BRqP1kNp/b4B2/3R4/2qQ1Qbn/NppP4/1P4RP/r3nBrQ b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 f4 b4 fxe5 Qd7 g3 f5 Nf3 f4 Kf2 Bc5+ Ke1 Qb5 axb5 Be3 Ng1 f3 Qa4 Nf6 Qd1 Bf4 gxf4 Ng8 Kf2 a5 Ke3 g5 Ke4 c5 f5 g4 d3 b3 b6 c4 d6 g3 Kd5 a4 e4 a3 f6 f2 e6 c3 e5 a2 e7 g2 d7+ Kf7 e8R Ra6 b7 Rb6 e6+ Kg6 e7 Ra6 f7 Nh6 f8Q Re6 Nf3 g1Q Qf4 Rb6 Ng5 Qg3 Ne6 Ra6 Rg1 Rg8 Rg2 Nc6 b8B Ne5 Na3 Nf3 Ba7 Nf5 Ng7 Kf7 Kc5 Ra5+ Kc6 Ba6 Rb8 Ne1 Rb7 Ra4 Qd4 Nh4 Bg5 Qe5 Kb6 Qd5 Bf6 Qc4 Qf3 Ra5 Qff4 Ra4 Rd1 a1Q Rd2 Qc1 Re2 Qe3 Rg5 Qe5 Rg2 Qb8 Re5 Ra5 Rd5 Qe5 Bb8 Qec7+ Ka7 Ra4 Ka8 Ra5 Ne8 Rg4 Ng7 Ra4 Be2 f1B Ba7 Ra5 Rg1 Bh3 Rg2 Rg5 Bf1 Bg4 Nb5 Ra1 Na3 Kg6 e8Q+ Kh6 Qe7 Kg6 Qe2 Kf7 Qd1 Be6 Rc2 Rg1 Qdf3 Bh3 Qh1 Bg4 Rg2
2Q1N3/1p1P1b1K/r1Q1R3/1n1bRR1p/PPn1Bqk1/1p4B1/1qBP2N1/4Nr2 b - - 0 1 illegal: Other
K4B1R/p3P1Q1/4p2P/3RrPP1/1b3n1n/3Q1N1k/NBNpBR2/qbr4q b - - 0 1 illegal: No proof kernel
1N6/5pP1/2b1b2p/r1b1BPnQ/2BR1B2/1qQp1n1P/1PQ2KRR/Nn1k4 b - - 0 2 illegal: Other
K2Q1R2/b1Np1P2/Pq1p1n2/2PPb2Q/1rB4p/3QN1Bb/1k4n1/1q1RB2N b - - 0 1 illegal: Other
2r1Nrb1/1Np4P/kQ1n3N/b3pB1R/r7/B1Pp1KR1/2qPP2R/3q2QQ b - - 1 3 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 b5 a4 Ba6 b4 Nc6 axb5 a4 Kf2 Bc8 Ke1 Na5 bxa5 Ra7 Nf3 Ra6 Ng1 Ra8 Kf2 e5 h4 d5 c3 Kd7 a6 f5 h6 d4 h5 a3 b6 Kc6 a7 Kb7 g6 d3 g7 f4 h7 a2 h6 f3 Bh3 Qd6 Ba3 Qe7 Rh2 Qd7 Bf5 Rb8 Nh3 Qc6 Ng5 Qd5 Nf7 Be7 Nd8+ Ka6 a8Q+ Kb5 b7 Nf6 g8N Be6 Qg1 Rc8 b8Q+ Qb7 Kg3 f2 Rh5 Ne4+ Kf3 Qb6 Nb7 Bb4 Qba7 Qa6 Qe3 Nd6 Qb6+ Ka4 Rh2 f1Q+ Kg3 Nf7 Bb2 Rb8 Nd8 Ba3 Qge3 Ng5 Qh1 Nf3 Nb7 Bb4 Na3 Ng5 Nc4 Rc8 Ncd6 Nf7 Ne8 Nd6 Rd1 Qg1+ Kf3 a1R Rf1 Bc4 Rff2 Qb5 Rfg2 Qd1 Rg3 Ba5 Qeg1 Qbb3 Bc1 Qbc2 Bb2 Rb1 Bc1 Rb4 Ba3 Rd8 Ngf6 Bf7 Ng4 Rf8 h8R Rc8 Rh7 Bg8 Rg7 Re4 h7 Rd4 Nh6 Rh4 Qbf2 Kb5 R7g5 Ka6 Rh5 Ra4 Qb6+
1k3NK1/pR3QQR/b2nn3/1P2b2B/P2P1qp1/5r2/p4QP1/Bb1RqNN1 b - - 0 2 illegal: Other
3R1N1K/1q3pNp/4RkbP/p2Q2n1/1QnPPP2/qB1b4/NQ6/1B1q2Br b - - 1 2 illegal: No proof kernel
3Rq2B/4Np1k/1NpqP1bb/2p1Q1BB/2R4P/1qP2P1N/2rn2QK/6rQ b - - 0 2 illegal: Other
n3rB2/2p2KP1/2PQ1nQ1/R3NNk1/p3r3/3R2p1/B1N1P1Pb/2nbbQ1B b - - 0 2 illegal: Other
Nr3Q2/N1P2Q2/4Rpb1/pr1nRbP1/Pp6/1BN2P2/1k1n3B/R1n1bQK1 b - - 0 2 legal: proof: g4 c5 h4 h5 gxh5 e5 d4 g5 dxe5 g4 b4 Nh6 bxc5 Qg5 hxg5 Ng8 a4 Ke7 c4 Ke6 e4 d5 c6 a5 c7 b5 h6 g3 h7 g2 c5 f6 c6 d4 f3 d3 Kf2 d2 Bc4+ Ke7 e6 Kd6 e5+ Kc5 e7 Kd4 e8Q b4 e6 Bc5 e7 Bg4 c8N Nd7 c7 Rb8 Qf1 d1B Nb6 Bc2 Na3 Bg6 Qf7 Ne5 e8R B4f5 Na8 Rb5 Bf4 Ne7 Bb3 Nc4 Bh2 Nd5 Re6 Rhb8 h8Q Nd2 Qhf8 Ba7 Rae1 Kc3+ R1e3+ Kb2 Ne2 g1N Nc3 Bb6 Kg2 Bc5 R3e5 Ne2 Rg1 Bd6 Rh1 Nc1 Kg1 R5b7 Nab5 Bc5+ Kg2 Bf2 Na7 Be1 Kg1 Rb5 Qc4 Na2 Kg2 Bg3 Ra1 Be1 Kg1 Nc1 Qf1
r1R5/2np1bR1/1K1p1r2/1PP2B1B/rb1Q4/2n2pn1/PBNPNQ2/1kN2Q2 b - - 0 1 illegal: Other
1n2NK2/5P1N/3Q2p1/rqRP2P1/pp2rQR1/PR2bkBr/NB1b1r2/1B6 b - - 0 2 legal: proof: e4 f5 exf5 a5 b4 d5 c4 b6 cxd5 g6 h4 Nc6 b5 Nd4 h5 Bb7 h6 Ba6 bxa6 Ne6 Rh3 Kd7 Rh1 Ng7 hxg7 Ke8 Ke2 Kf7 Kd3 Kf6 Kc4 Kg5 g4 Kf4 d4+ Ke4 f4 e5 a3 c5 d6 h5 f6 a4 d5 h4 d7 h3 f5 h2 a7 Rh4 f7 Rh5 f6 Qb8 d8Q Rh6 Nf3 Ne7 g8N Qb7 Qd6 Rh4 Rg1 h1R Bb2 Qc8 Nc3+ Ke3 Qe1+ Kf4 Na2 R1h2 Rc1 Nc6 Bd3 Bh6 f8B R4h3 f7 Qd7 Ng5 Rf2 Nh7 Nb8 Ngf6 Kf3 Bb1 e4 Ne8 Bd2 g5 e3 Rg4 e2 Bfg7 Qb7 Bge5 Qc6 Bg3 b5+ Kd3 c4+ Kd4 c3 Ke5 c2 Ke6 Qb6 Ke7 b4 Kf8 Qc5 Rd1 Be3 Rd3 c1B Rb3 Qb5 Qc3 e1R Qce5 Bd2 Rc3 Na6 Rb3 Rd8 a8R Nb8 Ra7 Rd7 Ra6 Ra7 Rc6 Ra5 Rcc4 Rc1 Rc8 Rc4 Rc5 Re4 Qf4+
N4B2/4b1p1/2K1P1n1/4PBQ1/1ppNQq2/R1PRn1P1/1BNn1k1n/Qr3b2 b - - 1 2 legal: proof: g4 b5 b4 a5 bxa5 f5 gxf5 e5 d4 Ra6 dxe5 Rc6 Qd2 Rc3 Qd1 Rg3 hxg3 Ba6 Nh3 Bb7 Ng1 Bc8 Kd2 Kf7 Ke3 h5 Kd4 d5 f4 b4 e4 h4 a4 h3 a6 h2 e6+ Kf6 a5 c6 a7 Rh5 a8Q Ba6 c3 Qd6 Ra3 Nd7 Bb2 Nb6 Nf3 Nc4 Bd3 Ne7 Qc2 Rh7 Rd1 h1N Qe2 Qc7 Kc5 Nf2 Nd4 Ng4 Qf3 Bb5 a6 Rh1 a7 Nh2 Bc2 Rg1 Rd3 Nd2 Qd8 Qe5 a8N Rh1 Qa5 Ng6+ Kb6 c5 Qh5 Ke7 f6+ Kd6 f5 Be7 f7 Qf4 f8B Ke5 Qg5 Ba6 Kc6 Rd1 Rf3 Bf1 Rd3 c4 f6+ Qf5 Nb5 d4 f7 Rc1 Rb3 Rd1 Qa1 Re1 N1a3 Rb1 Rf3 d3 Re3 Ndf3 Nd4 d2 Bd3 d1N Nac2 Nd2 Ra3 Nf2 Be2 Nd1 Rd3 Ne3 Bg4 Nd5 Qh4 Qg5 Bf5 Ne3 Qh5 Qf4 Qf3 Kf6 e5+ Kg5 Qe4 Bd8 Bd6 Be7 f8Q Kh5 Qd5 Kg5 Qf6+ Kh5 Be4 Kg4 Qg5+ Kh3 Bc5 Qf3 Bf5+ Kg2 Bd6 Kf2 Qe4 Qf4 Bc5 Bf6 Bf8 Bd8 Qd5 Be7 Qe4
b4bQK/N1R2rR1/1r4kp/1pPnp1Bb/BPPB4/3R1Pq1/bN2Q3/Q7 b - - 0 1 illegal: No possible last move, all moves rejected
2n5/3p1B1p/P1NnPRrQ/2r2qNP/pN4k1/Q4rB1/1K1BbrP1/QR6 b - - 0 1 illegal: No proof kernel
1nn2B2/NQK1bRR1/4pr2/5p1Q/PP5N/n1kp1qP1/3n1P2/N2BBb1R b - - 0 1 illegal: No proof kernel
2nQR1RQ/1P1rNB2/1RK1pp2/Q3bN1q/N7/1k2PPP1/p4b2/b2bB1n1 b - - 1 2 legal: proof: c4 b5 a4 d5 axb5 h5 cxd5 g5 g4 Bh6 gxh5 Bf8 Na3 a5 Bh3 g4 Bf1 g3 Nb1 g2 Qb3 Ra6 Qc2 Rg6 Qd1 Rg3 hxg3 Bh6 Rh3 Bg7 Rh1 Bf8 b4 Kd7 d4 Kd6 Kd2 c5 Ke3 f6 Ke4 c4 h6 c3 e3 c2 f3 a4 h7 a3 b6 a2 b5 Nh6 b7 Qe8 b6 Qd8 Qd2 Qd7 Bc4 Qb5 Nc3 Qb1 Nge2 g1B Na4 Nd7 b8N Nf7 b7 Bh6 Qa5 Bf4 Bd2 Qb5 Nc6 c1B Be1 Nb6 Rb1 Rd8 h8Q Be6 Rh7 Be5 Rg7 Bd7 Rg8 Nc8 Rb4 Qc5 Rb6 Bb2 Bb3 Be8 Bc4 Bf2 Bb3 Kd7 d6 Ba1 d5 Qb5 Ned4 Ng5+ Kf5 Nh3 Ke4 Ng1 Nf5 Qc5 Kd3 Qa3 Kc4 Bg6 Kb5 e6 Bc2 Qc3 Nce7 Qd4 Bd3 Qh4 Bb1 Qh5 Bc2 Rf8 Bb1 Be8 Bc2 Rf7 Be4 Kd8+ d7 Kc7 Kc5 Rg7 d8R Bb5 Bb1 Be2 Rde8 Bd1 d6+ Kb8 Qd2 Ka7 d7 Rf7 d8Q Rh7 Rb5 Ka6 Kc6 Rf7 Ng6 Rd7 Nge7 Bec3 Rb6+ Ka5 Ra6+ Kb4 Rb6+ Ka3 Bd3 Be5 Qa5 Bb3 Nh6 Bd1 Bg6 Qh3 Bf7 Qh5 Kb5 Kb3 Nhf5 Qg4 Qh3 Qg5 Qh8 Qh5 Kc6+
3bQ2b/1B3N2/2b3pP/3N2PN/kp1Qp1KR/q4PbR/BP3B1R/nn1b4 b - - 0 1 illegal: Other
2Bk2R1/2R2rB1/3n1Qp1/1q1bQB1p/5Nrn/4pp1R/PP1QP2P/1n2KN2 b - - 1 2 illegal: No possible last move
QR3n2/1Kpq2R1/1p2P3/2Bk1BQ1/1pr4r/Qpb1P1Bb/1PP3NR/b4N2 b - - 1 2 illegal: Other
Nk3r1N/2R2rq1/1B3Q2/1BKPr3/p3Rbpp/P1pP2n1/B5QP/4Q1nR b - - 1 2 legal: proof: f4 b5 g4 f5 c4 d5 cxb5 e5 fxe5 f4 e4 Bf5 exd5 Kf7 gxf5 Ke8 d3 Kd7 Ke2 Kc8 b4 c5 e6 g5 f6 a5 e7 h5 e8B g4 a3 a4 f7 f3+ Ke3 h4 b6 c4 Kd4 f2 b7+ Kc7 b5 c3 b6+ Kd6 Nh3 Nh6 Nd2 Qg5 Nc4+ Ke7 Be2 Kd8 Nf4 f1R Be3 Qf5 Ng6 Be7 f8Q Rg8 Nh8 Na6 b8R+ Qc8 b7 Kc7 Nb6 Bd6 Rb1 Re1 Rb4 Ra7 Qf6 Bf4 Bf3 Re2 Qe1 Qd7 Rd8 Qg7 Rd7+ Kb8 Bf2 Nc7 Na8 Re5 Bd1 Rf8 Bb3 Nf5+ Kc4 Nb5 Ba2 Ng3 Bc5 Ra6 Bd4 Rae6 Rc7 Re7 Be3 Nd4 Bc6 Ka7 b8Q+ Ka6 Bf2 Ref7 Qe8 Re3 Qe4 Nde2 Qg2 Re5 Bb6 Ng1 Bd7 Rfe7 Kc5 Ref7 Rc8 Kb7 Rc7+ Kb8 Bb5 Qg5 Rd4 Qg7 Re4
3q2Bb/kP1q3r/1R5B/K1p1pQ2/QQ2pp1R/B2n2N1/PP2P3/2N1R1nr b - - 0 1 illegal: Other
n5rB/Q1PqNrN1/p3Q3/R1R3Pp/P5pN/2B2q1P/n1Kb1p2/5kQB b - - 1 2 legal: proof: d4 e5 dxe5 c5 b4 g5 bxc5 g4 f3 Qb6 f4 Qd8 Nf3 f5 Bb2 b6 Ba3 Qg5 fxg5 f4 Bc1 Bb7 Ng1 f3 Kd2 f2 Ke3 Be7 Kd2 Bf3 gxf3 Bf8 e4 Kf7 c4 Kg6 h3 Kh5 f4 Kh4 f5 Kg3 c6 h5 e6 d5 f6 b5 c7 d4 c8Q b4 e7 b3 e8Q d3 c5 b2 c6 a6 e5 Bh6 e6 Bg7 c7 Nc6 e7 Ra7 f7 Be5 f8B Ra8 Bg2 Nb4 Qb7 Rd8 Nf3 Rd4 Nc3 b1Q Bg7 Rd7 Qa7 Qb3 Qg1 Nf6 Bb2 Rg8 Nh4 Nfd5 Bh8 Nb6 Nd5 Na8 Bc3 Bd4 a3 Na2 Qf7 Bc5 e8N Bb4 Qe6 Rf7 Ne7 Qa4 Rc1 Qd7 Ng7 Ba5 Kd1 d2 Kc2 Bb4 a4 Ba5 Re1 Bb4 Re5 d1Q+ Kb2 Qf3 Kc2 Ba3 Ra5 Bc1 Qge1 Bf4 Rf1 Kh2 Bh1 Bd2 Qa1 Kg3 Re1 Kh2 Ree5 Kg3 Rec5 Kh2 Qb2 Kg1 Qbb6 Kf1 Qbd6 Rf6 Qh2 Rf7 Qg1+
K1bq2NR/PRQ2B2/5pB1/1k2Prpp/7p/Q3Pq2/N3n1Pr/N1B1nQ2 b - - 0 1 illegal: Other
4K2Q/3pB1NN/P1p1b2R/1BP1b3/p5PQ/3rr1PQ/2rp1N2/kR1n1n1R b - - 0 1 illegal: Other
K1N2BN1/5Q2/N1R2Pr1/RpbrQb2/3p1p1p/1PrR1P1k/1P6/1BbQq3 b - - 0 1 legal: proof: e4 f5 d4 g5 h4 c5 dxc5 f4 hxg5 Nh6 Nc3 Nf5 exf5 Nc6 Nb1 Nd4 Rh5 Bh6 Rh1 Nb3 axb3 Bf8 Kd2 Kf7 Kc3 h5 Kd4 a5 Kd5 b5 g4 e5 c4 e4 f6 Kg6 c6 e3 c5 e2 c7 e1B f3 d6 Kc6 h4 Nd2 d5 Bd3+ Bf5 Kb7 a4 c8R a3 c6 a2 c7 Ra3 Nh3 Bg3 Nf2 Rh6 Nc4 Qe8 Be3 Be4 Nb6 Ra8 Bb1 Ra3 Nd3 Ra6 Nb4 Bf2 Bc5 Be3 Rg1 Ra8 Na6 Bc1 Be7 Kf7 g6+ Ke6 g7 Ke5 g8Q Rg6 g5 Bf5 Rd8 Rc8 Qf7 Bd2 Rd6 Kd4 Rc6 Ke3 Rf1 Rd8 c8Q d4 Ka8 Rd5 Qb8 Bc1 Rg1 Kf2 Nc8 Rg8 Ba3 Bc5 g6 Qe1 Qe5 Rg7 Rh1 Kg3 Rf1 Rg8 g7 Kh3 Rg1 Rh8 g8N Rh6 Rg2 Rg6 Rd2 Qe3 Be4 Qc3 Rd3 Qe1 Rb1 a1R Bb4 Ra5 Ra1 Ra4 Ba3 Rc4 Bb4 Rc3 Ra5 Bb6 Bf8 Ba7 Re3 Bb6 Bb1 Bc5 Rd3
2R3B1/B1r4b/kp2Nr2/2bN3p/QPNBpnbK/6p1/P2PQQP1/2bR4 b - - 0 1 illegal: No proof kernel
qBKBkb1r/3p1P1R/3PB2q/1Pb2pQ1/1QR1nP2/NN4nn/1rb4Q/N7 b - - 0 1 illegal: No possible last move, all moves rejected
q5qB/1p1Q4/1P2p2n/NK1NP3/1bBR1rq1/1BPP2k1/1n1Qn1bQ/R2N2r1 b - - 0 1 illegal: No proof kernel
nNB5/b1n4B/bqr1QK2/qb5r/p1P5/P4pr1/RB1kPPNR/3Q1Q1N b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 h5 bxc5 Bd6 g4 Be7 gxh5 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 h4 f5+ Kd4 b5 c4 g5 a3 d5 h6 f4 h5 b4 h7 g4 h6 b3 c6 f3 c7 b2 Bg5 g3 Bf6 g2 Rh2 Ba6 c8B+ Nd7 Nd2 b1Q Ra2 Ne7 Nh3 g1R Ne4 Rg3 Nf4+ Kf5 e6 Nb6 Bg2 Rb8 Bf1 Na8 Ng2 Rb6 Be5 Rc6 Bg7 Kg4 Ke5 d4 Bf6 Nd5 e7+ Qd7 e8Q d3 Bg7 Ndc7 Qf7 Bd6+ Kf6 d2 Qe8 Qb6 Qg8 Rh3 Ng3 Rh5 Qd5 Rg8 h8Q Bc5+ Qd6 Be3 h7 Bc5 Nh1 Qf5+ Ke7 Be3 Bb2 Rg6 Qe8 Bc5 Qb1 d1B h8N Ba4 Nf7 B4b5 Nd8 a4 Qd7 Kg5 Qe6 Qd5 Qd1 Qd2 Qh3 Qda5 Bf5 Rg8 Bh7 Be3 Qde6 Rg6 Ne1 Kf4 Qg2 Rg3 Kf6 Qb8 Qg1 Ba7 Bh3 Qb7 Qf1 Qbb6 Bg8 Re5 Ng2+ Ke4 Qed6 Rd5 Bc8 Rh5 Nf7 Rcc5 Ne5 Rc6 Qe6 Qd2 Bc1 Kd4 Nd7 Kc3 Nb8 Qd5 Bh7 Qdc5 Qg1 Qa5 Qdf1 Qcb6 Bb2+ Kd2 Qb1 Rhh3 Qgf1 Rh5 Qbd1#
2r5/1PB3NR/n6B/n1b1k1pN/Q3bqPp/1Q3B1n/K1NPbR1P/2Q1r2q b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 g4 Kd7 b4 c5 e4 a5 e6+ Kd6 b6 g5 b5 f5 b7 h5 b6 h4 e5+ Ke7 Bb2 c4 Be2 f4 Bf3 c3 Ne2 c2 Ng3 c1Q Nh5 a4 Na3 Na6 b8Q Qdc7 Nc2 a3 Rf1 a2 Rf2 Qb1 Qc1 Bb7 Kd1 Nf6 Bc3 Bc6 Qb7 Rc8 d6+ Ke8 e7 Kd7 e8N Ke6 d7 Be4 d8B Nd5 Qb8 Bc5 Bb4 Qd6 Bc7 Rh7 Ba3 Re7 Bb2 Qc6 Bd4 Qb4 Rb1 a1N Neg7+ Kd7 Bb2 Nb3 Ba1 Qb7 e6+ Kc6 Bae5 Na5 Bed6 Ree8 Bf8 Qc4 e7 Qa4 Bg2 f3 Rb3 Nf4 Rd3 Qa8 Rd7 Nh3 Bh1 Red8 e8Q Qb7 Rf7+ Kd5 Re7 Qd4 Qa4 Re8 Rf7 Qc6 b7 Re7 Qa7 Qe5 Qb6 Qed6 Qbb3+ Ke5 Qca3 Ree8 Kc1 Re7 Kb1 Ree8 Rg2 f2 Qc1 f1B Rgf2 Be2 Ka2 Re6 Bf3 Re7 Bd8 Qf6 Bb6 Qf4 Bc7+ Qd6 Qbc4 Bh7 Ne8 Bed3 Qc3+ Ke6 Rg7 Qc6 Bd1 Qh1 Qcb3+ Bc4 Be2 Kd5 Bd1 Re1 Bf3+ Be4 Rh7 Ke6 Bh6 Kd5 Bd8 Ke5 Neg7 Be2 Bc7+
3q1b2/b3p2b/5r2/1B1BPn2/p1NnrR2/2RKQ1P1/P2PQ1RB/1kbNr1N1 b - - 0 1 illegal: No proof kernel
n4kN1/3RQp1p/2b1bP1P/P1RrQ1R1/2N1B3/1b3Nr1/1KPb1qq1/2B2n1Q b - - 0 1 illegal: No possible last move, all moves rejected
Q3NB1K/2QPq2b/5P2/p1p3R1/P6n/1qPNNR2/3r1rbb/nQ1BB1kb b - - 0 1 illegal: No proof kernel
b1n1n1r1/k1qQ3N/1b1nP2p/5p1R/P1Q3nP/rN2BR1q/QN3PB1/1RK5 b - - 0 1 illegal: No proof kernel
QB1R2r1/q2pbp1K/3BQ2N/5PPN/1rP3B1/N2Pn2k/1rr1b1q1/3R1Q1n b - - 0 1 illegal: No proof kernel
2BNR2R/K2p2q1/p1NB1rk1/P1R1rqq1/n7/1PQnQBq1/b2P1P2/5Qb1 b - - 0 1 legal: proof: e4 f5 exf5 g5 h4 b5 hxg5 Bb7 c4 Ba6 cxb5 Bc8 Ke2 Kf7 Ke3 e5 a4 c5 g4 h5 g6+ Kg7 f6+ Kh6 b3 e4 b6 c4 Kd4 h4 f7 e3 g7 h3 a5 h2 g5+ Kg6 b7 c3 Nf3 e2 Na3 e1Q Nc2 Ne7 Kc5 Qe3+ Nfd4 Qg3 g8B Rh6 Ba6 Nbc6 b8Q Ne5 Ba3 Bb7 Qf1 Be4 Bc8 a6 Qc7 Nd3+ Kb6 Nd5+ Kb7 Be7 f8Q Bd6 Qf4 Nb6+ Bd5 Na4 Nb4 c2 Qc3 c1Q Qe3 Qb1 Nbc6 Qf8 Bb4 Qg7 Ne6 Rb8+ Ka7 Rb5 Ned8 Be5 Rg1 h1Q Bd6 Qhh4 Rh1 Bf5 Be4 Bf4 Bf3 Re5 Ra2 Be4 Rc2 Qhg4 Qd1 Qf5 Qde2 Qbg1 Qf1 Qgh3 Bc7 Kh7 Ne7 Qgf7 Qg2 Bh2 Qb2 Nc1 Rc5 Bb1 Qf1 Nd3 Nec6 Rf6 Bd6 Ba2 Qbc1 Qgg2 Qc3 Bg1 Rh2 Kg7 Rh1 Qhg4 Rh8 Q2g3 Re8 Q4f4 g6 Kh6 g7 Kg6 g8R+ Qg7 Rgf8 Q4g5 Rh8
RQ1n4/1bbP2kb/B1p1np1P/2R1Q1p1/2Pr2r1/KQ1n2P1/B2N4/2N1R1Bq b - - 0 1 illegal: No possible last move, all moves rejected
2NR1n1Q/1prNqN1r/4P3/1P1K1B1p/Pkr2Bb1/2Q2R2/pnB3bP/3Q2b1 b - - 0 1 illegal: No proof kernel
N6b/1pR1q1kP/p1Q2p2/RP2rBQ1/Q2n1PK1/PN2bnB1/2Nr4/1r4Bn b - - 2 3 legal: proof: g4 h5 gxh5 d5 d4 Bg4 e4 Bf5 c4 Qc8 c5 Kd7 c6+ Ke6 exd5+ Kf6 d6 Qd8 d5 Bd7 cxd7 Qe8 Qe2 Qc8 Qd1 Qd8 Ke2 c5 Kf3 e5 b4 g5 h4 e4+ Kg4 c4 f4 a6 h6 e3 h5 c3 h7 c2 b5 e2 h6 e1R Bd3 Qa5 d8Q+ Ne7 d7 Re6 d6 Ra7 Ne2 Qc3 Nd4 Qb4 Nb3 Re5 Bf5 Bg7 Na3 Ra8 Be3 c1B Bg1 Be3 Nc2 Nc6 Rh4 Rg8 h8Q Nd4 h7 Rc8 Rh1 Rb8 Qb6 Rbd8 Qc6 Rge8 Qg8 Bh8 Qc1 Qe1 Qa3 Qb4 Qa4 Qe1 Kh5 g4 Rh2 g3 Kg4 g2 Rc1 Rc8 d8N Qb4 Ne6 Rcd8 d7 Qe1 Bf2 g1N Bg3 Ngf3 Re2 Qb4 Nc7+ Qd6 a3 Qe6 Na8 Qd6 Be6 Nef5 Rd2 Qe7 Rdd1 Rc8 d8B Rc7 Rd3 Rd7 Bb6 Rc8 Qd8 Kg7 Rc3 Rcc7 Rc4 f6 Qb8 Nd6 Bf5 Ne4 Qe8 Rd8 Qh5 Rdd5 Be1 Ng3 Qg5+ Kf7 Bf2 Nh1 Bg3 Rcd7 Qa5 Rc5 Ra4 Rc3 Bc5 Rd3 Qb4 Rd1 Ra5 Rd8 Qa4 Rg1 Nca1 Rdd5 Rc4 Rb1 Nc2 Kf8 Qe6 Rd6 Ba7 Rd7 Rc7 Rd8 Qc6 Kf7 Bg6+ Kg7 Bc5 Rdd5 Bf5+ Kf7 Rc8 Ne6 Kh3 Rd2 Qc7 Bg1 Kg4 Bf2 Be3 Ned4 Qc6 Bg1 Rc7 Kf8 Bef2 Kf7 Be1 Be3 Bef2 Kf8 Bg1 Kf7 Qh5+ Kg7 Qg5+
B1K3bR/Q1pp4/1pPr1BqQ/1PP1q1rk/1B1P2N1/1N2rR2/3N1bn1/3nQ3 b - - 2 3 illegal: No possible last move, all moves rejected
q2R4/2PKbpB1/5Nr1/pR2N1pR/B1qPn2b/Pn1bQ3/NB4Pr/1k4Q1 b - - 0 1 illegal: No proof kernel
Q2Nq2b/qb1pP2q/1rp1kP2/1QP1NRr1/4B2n/8/R2PnBNp/R1B1K3 b - - 0 1 illegal: No proof kernel
1KRb2R1/1R1qpbp1/1q3Pk1/2B2p1N/r2r3n/Q1nPq1P1/1Q2NPBN/1B6 b - - 0 1 illegal: No proof kernel forced: wxDB
1R2R1QN/rP1pQ2p/R3Q1B1/KBbnk2P/1p1b2q1/1q4b1/1P1P1B2/N2r3n b - - 0 3 illegal: Other
n3R2K/1p1pq3/rN2NpQN/kbB1b3/B2r1q1n/RP1PQ3/3P1P2/2q2R1Q b - - 1 3 illegal: No proof kernel forced: wxLB
R1Rq1B1K/3n2nR/r1b1rN2/n2P2pN/n1pb2PQ/3BP3/1BPN3p/3Q2k1 b - - 0 1 illegal: No proof kernel
4RR2/2p3P1/4NQ1b/1nr1bQnb/1PP2Np1/B1B1r1P1/1NQ2pKb/1kq2B2 b - - 0 1 illegal: No possible last move, all moves rejected
4Qr2/pb1N1BRN/2k1b1n1/P3Bpp1/2rq3R/Kp3PPP/n5rN/RQ4B1 b - - 0 3 illegal: No proof kernel
BBK1n3/1r2bN2/r2Pp1R1/1N3pQ1/1n3P1r/2QP1N1k/p1Q1P1bp/q1R4R b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 h4 Bf5 hxg5 Bc8 g4 Kd7 b4 f5 b6 h5 g6 a5 g5 c5 g7 c4 b5 c3 g6 c2 b7 e6 b6 a4 d3 a3 Kd2 a2 Kc3 h4 Kd4 h3 Ke5 h2 Bf4 c1R Bg2 Qe8 Na3 Nf6 g8R Qd8 g7 Rb1 Nf3 Rb2 Rc1 Ne4 Nb5 Ng3 Qc2 Na6 b8N+ Ke7 b7 Rh4 Nd7 Nb4 b8Q Nh5 Qbc7 Bb7 Q7c3 Kf7 Bg3 Kg6 Bf4 Be7 Bg3 Bg5 Kd6 Qf6 Kc7 Ra6 Nde5+ Kh6 Nf7+ Kg6 d6 Qe5 Bf4 Be7 Be3 Nf6 Ba7 Kh5 Bb8 Ne8+ Kd7 Be4 Kc8 Kg4 Nfd4 Ba8 f4 Bd5 Be4 Kh3 Nf3 Bc4 Ba8 Bd5 Rf8 Be4 g8Q Rb3 Qg5 Bc6 Nd2 Bg2 Rg8 Qd4 Rg6 Qh8 Qc5 Qa1 Q5c3 Nc6 Na3 Rb7 Nf3 Nb4 Nb5
3KN2r/pk1p2rp/1QR1p2b/P1BPPn2/1R6/NQ2N1P1/1B2b3/2qQ1qnB b - - 0 3 illegal: No possible last move, all moves rejected
1k2R3/3BrRQ1/Q1rpPqpq/N1n3Pp/p2P3P/KR2n1BB/2b1Q3/4bN2 b - - 1 3 illegal: No possible last move
r4k2/1R3pq1/PR2bn1r/Np2bP1Q/nP1QPB1K/2Npq3/Q1BB2p1/3N4 b - - 0 1 illegal: No proof kernel
1r5R/3KP1QN/4n1pQ/p1rk1pN1/P2rq3/1BpRbBPn/2PBN3/4n1R1 b - - 0 1 illegal: No possible last move, all moves rejected
1n6/rp3QPK/1kB2rpp/3Rp3/2NNBQNq/RqQ3P1/bn2P2P/3nB3 b - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 g6 bxa5 Nh6 f4 Ng8 f5 Ra6 f6 Bg7 fxg7 Ra8 Kf2 e5 Kf3 f5 c4 d5 a4 Kd7 g3 Kc7 c6 d4 c5 d3 a6 d2 a7 f4 a5 Nh6 a6 Bh3 Ra3 Nd7 Qa4 d1N Nd2 Nb8 Nb3 Be6 Nh3 Qd7 Nf2 Ne3 Bd2 Nd5 Ng4 Rg8 Nd4 Bf5 Bg2 Qe8 Rd1 Nc3 Be1 Kd8 c7+ Kc8 Qb4 Kd7 c8B+ Kc7 c6 Qe6 Bd7 Qb3 Qf8 Rh8 Qf7 Kb6 c7 Be6 c8Q Na4+ Qc3 Nb2 Bc6 Nf5 Be4 Ne3 Rd2 Nc6 Rd3 Raf8 a8Q Ned1 a7 Rhg8 Qae8 Nb8 Qf5 Rf6 Qf7 Rc8 Rd2 Rc5 Bc6 Ra5 a8N+ Ka7 Nb6 h6 Ke4 f3 Qf4 f2 Nc4 f1Q Bh1 Ra6 Bf3 Bc8 Kd5 Qh3 Be4 Be6+ Kd6 Ra4 Ke7 Qh4 Kf8 Bd5 Kg8 Ka6 Nd6 Kb6 Kh7 Ra7 Nc2 Bc4 Rd5 Qa4 Nd4 Ba2 Qd3 Qb4 Qc3 Qb3 Nc4+
B3r1QQ/n1NK1npR/1rp1NpP1/p2n2r1/2P5/r2R1Pq1/PQ2N3/3RB2k b - - 0 1 illegal: No possible last move, all moves rejected
3R4/3nPK2/Q1Pkpnp1/rp2b2B/2NN1QR1/1P2pq2/3NprP1/3Q1bBR b - - 0 1 illegal: Other
1b6/Pk2bp2/4Bqp1/1PR1n1Qr/P2BRp2/pKN1R1N1/P1B5/RR6 b - - 0 1 illegal: Other
2R2NQK/1n4rP/1rR2qNq/2b2PkP/2b2N2/1NnPRbqB/4N3/4B3 b - - 0 1 legal: proof: g4 d5 f4 b5 e4 h5 gxh5 f5 a4 e5 fxe5 d4 axb5 d3 cxd3 f4 d4 Qd7 d5 Qf5 exf5 Kd8 Bd3 Kd7 Bf1 Ke8 Kf2 Ke7 Kf3 a5 Kg4 g5 b4 c5 h4 a4 b6 a3 b7 c4 h6 a2 Kh5 c3 Kg6 f3 h7 f2 d3 g4 d6+ Kd8 h5 g3 b5 c2 d7 Ke7 d8N g2 e6 Ra7 b6 Ra4 Ne2 Ra5 Bd2 c1Q Be1 Qe3 Rh3 Nc6 b8N Rb5 b7 Na5 Qb3 Nf6 Nd2 Rb6 Rc1 a1Q Nd7 Nd5 b8N Ba6 Rc6 Nc3 Ne5 Bc4 Nbd7 g1Q+ Bg2 Qf4 Re3 f1B Qa2 Qgf2 Bh3 Nb7 Nb3 Bg2 Qa8 Bf3 Qc8 Ke8 e7 Rg8+ Kf6 Rg4 Ng6 Qh6 Qa8 Qg3 Ne6+ Nd8 Qa2 Nb7 N6f4 Qb2 Ndc5 Rg5 Nce6 Kd7 e8R Bc5 Kf7 Qa1 Kg8 Rg4 Kh8 Qb2 Nh4 Rg7 Rg8 Ke7 Rgc8 Kf6 Nf8+ Kg5 Qa8 Nb1 Qb8 Qbf6 Nhg6 Nc3 Qc7 Rb5 Qf7 Rb6 Qg8
1QN2b2/2RP4/PRn2nnB/2P1B2r/2q2q2/1NB2qkr/N1P1B1b1/B3K3 b - - 0 1 legal: proof: e4 d5 exd5 a5 d4 c5 dxc5 f5 g4 h5 gxh5 a4 Qf3 a3 Qxf5 Qd6 Qf7+ Kd7 bxa3 Na6 a4 Nb8 a5 Qc7 Na3 Qb6 Nb1 Qd8 f4 b5 a4 g5 h4 b4 h6 b3 d6 g4 a6 g3 h7 b2 a7 g2 h5 Nh6 a5 Nc6 a6 Qa5+ Bd2 Nf5 h6 Qa4 Nc3 b1N Nf3 g1Q Qe8+ Ke6 Na2 Qh2 Bc3 Qc4 Be2 Bb7 Qb8 Nd2 Rb1 Nh4 Rb6 Ne4 Nd2 Kf5 Nb3 e5 Rg1 Qh3 Rg7 Nf6 Rc7 e4 d7 e3 Ba1 Ke4 f5 Kf4 Bc3 Qf3 Ba1 Nh5 f6 Ng6 f7 Kg3 Bc3 Nf6 Ba1 Rg8 h8B Qcf4 Bg7 Rh8 h7 Qc4 Qe8 Rd8 a8N Qcf4 Qe5 Re8 Qd6 Re5 Bc3 Rh5 Ba1 Rg8 h8B Rh3 Bh6 Rg7 Qe5 Rh7 Qe8 Qc4 Qb8 Qcf4 B6g7 R7h5 Bc3 Ng8 Bge5 Nf6 Bd1 e2 Ba1 Be7 f8B Bd6 Bh6 Bf8 Bec3 Qc4 Rb5 Qff4 Nb6 Qf3 Nc8 Ba8 Kd2 Bb7 Rb6 e1Q+ Kc1 Qe5 Kd2 Qef4+ Ke1 Ba8 Be2 Q3e4 B8g7 Nd8 Rbb7 Ne8 Bge5 Nf6 Rb5 Bd5 Qb7 Nc6 Qb6 Qe3 Qb8 Bg2 Rb4 Qf3 Rb6
1R6/1B3r1P/bPBrP3/BN3RN1/5PKR/rnR1qR2/r4Q1q/3b1q1k b - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 h5 gxh5 f5 a4 f4 axb5 f3 e3 Rh7 Nc3 Rh6 Nb1 Rh8 Bd3 e5 Bc4 e4 Kd2 Bd6 Bd3 Bf4 Bf1 Nc6 Qe2 Nd4 Qd1 Nf5 exf4 e3+ Ke1 e2 Kd2 Ne3 fxe3 Kf7 Bh3 Ke7 Bf1 Ke8 c4 Kf7 h4 Kf6 b4 Kf5 b6 Kg4 b5 Kg3 e4 e1R h6 g5 h7 d5 e5 a5 b7 g4 b8R d4 h5 d3 h6 a4 b6 f2 e6 a3 c6 a2 c5 Qg5 c7 Qh5 c6 Bb7 c8R Qe8 c7 Ba6 Bg2 f1Q Qc2 Ne7 Nh3 Rd1+ Ke3 d2 Na3 Nc6 Ng5 Rf8 h8R Na5 h7 Nb3 Rh4 Qh5 Nb5 Rf7 Bc6 Ra7 Rb1 a1R Rhf8 Ra2 Bb2 Ra3 Bc3 Ra2 Ke4 Kg2 Ba5 g3 Rc1 Ra3 Qc5 Ra8 Rc3 Qhe2+ Re3 Kg1 Qd4 Qh2 Rf3+ Kh1 Qf2 g2 Ke3 g1Q Ke4 Rd7 Rf5 Rd6 Ke5 Rda1 Kf6 d1B Kg6 R1a2 Kh6 Qe2 Kh5 Qgf1 Kg4 Qd3 Rh8 Qe4 c8B Ra7 B8b7 Qed3 Rhc8 Qe3 Ba8 Rc7 Bcb7 Rcd7 Rc3 Re7 Bc6 Rf7 Bab7
1B2R3/KP1Q1r2/R1Pbn1nR/1B1r3k/2r5/1nqp1N1P/2P1NNq1/3N2N1 b - - 0 1 legal: proof: d4 c5 dxc5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Bb7 Ra2 Ba6 Ra1 Bc8 g4 Nc6 f4 Ba6 g5 Qc7 f6 Kd8 f5 Nb8 Qd6 Bb7 Qd1 Bd5 g6 Bf7 gxf7 Qc8 Bc4 Kc7 Bf1 Qd8 Ke2 g5 Kd3 a5 Kd4 d5 b4 Kd7 b6 a4 b7 g4 b5 g3 b6 g2 Nc3 a3 Bf4 Na6 b8R a2 b7 Qc7 Re8 Rc8 Bb5+ Qc6 Qd2 Nc7 Nd1 e6 Be5 Bd6 Qd3 Ne7 Bf4 Na8 Bg3 Ng6 f8N+ Kc7 Nd7 Rf8 Qd2 Rf7 Ne5 Rd8 Nd3 Kd7 N3f2 e5+ Ke3 e4 Kd4 e3 Be5 Bf8 Bb8 e2 Qd3 e1Q Qd2 Rg7 f7 Nc7 f6 Be7 Qd3 Ke6 f8N+ Kf7 Ne6 Bd6 Nf4 Qf1 Nfe2 Ne6+ Kc3 d4+ Kb4 Qf3 Ka5 Qe3 Qf5 Qc3+ Kb6 d3 c6 Rd7 Ka7 Rd8 Rb1 a1N Rb4 Rd7 Ra4 Nb3 Ra6 Rd8 Nf3 g1R Qd5 Rg2 Neg1 Rg4 Qf5 Rc4 Qh3 Nef8 Qd7+ Kg8 f7+ Kh8 Re4 Ne6 f8N Rf7 Re1 Kg7 Re5 Nh4 Ng6 Kh6 Nf4 Qg2 Nfe2 Ng6 Re3 Ned4 Re8 Kh5 h3 h6 Rh2 Qh1 Rg2 Ne6 Rg4 Qg2 Rg3 Ngf4 Rg7 Ng6 Rh7 Bg3 Qc7 Rd5 Qd7 Bd6 Rxh6+
b2rBB1k/1Q5B/1NK2P1R/2pP3n/3bR1bN/P1P2N2/r1B4b/1Brn4 b - - 0 1 legal: proof: d4 a5 h4 e5 dxe5 d5 g4 g5 e4 f5 gxf5 a4 exd5 a3 bxa3 g4 a4 Qf6 a5 Qg5 hxg5 Kf7 Ke2 Ke7 Ke1 Ke8 Kd2 Kf7 Ke3 Kg7 Kd4 b5 f4 h5 a3 g3 c3 b4 f6+ Kh7 e6 b3 g6+ Kh6 g7 Kh7 e7 g2 Kc5 b2 f7 h4 a6 c6 a7 h3 f5 h2 Nd2 b1R Qb3 Rb2 Ndf3 Bb7 Bh6 Nf6 Bd3 Ra2 Bb1 Ng4 Nh4 Nf2 Ngf3 g1B Kb6 c5 e8B Bd6 f8N+ Kg8 Nd7 Nd1 Kb5 Rh7 Nb6 Bd4 Re1 h1B Re4 Bh2 f6 Nd7 Qb4 Rd8 a8B Nf8 Bg6 Ne6 Bf5 Ba6+ Kc6 Nf4 Qb5 Bc8 Qa6 Bg2 Qb7 Bh3 Bc2 Nh5 Rc1 Nb2 Rg1 Rh8 Rg6 Nd1 Bb1 Kh7 Bc2 Rhe8 g8B+ Kh8 Bf8 Bg4 Bh7 Re5 Rh6 Re7 Re1 Re2 Bb1 Rec2 Bfg6 Rc1 Bgc2 Bcf5 Re4 Bc8 Qc7 Ba6 Bb7 Bhe5 Bc8 Bh2 Bd7 Bc8 Be8 Bb7+ Kb5 Ba8 Qb7 Be3 Kc6 Bf2 Nf5 Bd4 N5h4
R1bB1R2/2n2PbN/1n3P2/BB1kPq2/2n1pn2/1Q3P2/4B1nB/1KNq1R2 b - - 0 1 illegal: No proof kernel
1n6/N5PN/1BP1N1BR/1k1qP1Nn/5B2/1P1NR3/n1rn2pK/3q1qrQ b - - 0 1 legal: proof: d4 e5 f4 b5 a4 c5 dxc5 g5 axb5 f5 g3 Bh6 fxe5 f4 Bd2 Bb7 Be3 Bf3 Bc1 Bg4 h3 f3 Ra4 Be6 Ra5 g4 Ra1 Bf4 gxf4 g3 Ra5 Nc6 Ra1 Bg4 hxg4 Nb8 c4 a5 e4 h5 g5 d5 f5 Kd7 c6+ Kc7 e6 Kb6 f6 a4 g6 a3 e5 a2 c5+ Ka5 b6 g2 Kf2 h4 b3 h3 Kg3 f2 b7 d4 g7 h2 f7 d3 f8N d2 e7 Na6 e8N Qd6 b8B Qd8 c7 Rh4 c8N Kb4 c6 Qa5 Nf6 Rc4 Bd3 f1Q Bc7 Kb5 Nh3 Nb8 Bg6 Rc2 N6h7 Nf6 Nf2 Nh5+ Kh3 Ra6 Nd3 Ra8 Qe1 d1N Nd2 Nc3 Nf3 Ra7 Rb1 a1Q Bb6 Na2 Bf4 Rf7 Rb2 Qd1 Nfg5 Rf6 Nfe6 Rf5 Rg1 h1N Kh2 N1g3 Rh1 Ne4 Qh4 Nd2 Rb1 Qdf3 Re1 Qd1 Re3 Rf6 Bd4 Qd8 Bb6 Qd5 Kh3 Qfe1 Bg3 Rf1 Bf4 Nf6 Rh2 Qee2 Qe1 Rh1 Kg3 Rf1 Rh6 Nh5+ Kh2 Qef3 Qe2 Re1 Qf1 Qf2 Qh1 Rg1 Kh3 Qff3+ Kh2 Qff1 Na7+
1B6/Pr1nKpP1/2BB1n1P/2b5/1PRnR1B1/4Nb1p/r1NqNQ2/k2B4 b - - 0 1 illegal: No proof kernel
qB1b4/1RPrP3/1q2N2K/1r2p1P1/1p2R2N/1knN2R1/1PQ1qnB1/3R3R b - - 0 1 legal: proof: d4 b5 h4 d5 a4 e5 f4 c5 dxc5 g5 hxg5 d4 f5 Be6 fxe6 d3 exd3 b4 d4 Qa5 d5 Qb5 axb5 Ke7 Ne2 Kd8 Ng1 Ke8 Ke2 Ke7 Kf3 f5 g4 a5 c4 h5 d6+ Ke8 g6 h4 g7 a4 b6 f4 d7+ Ke7 d8N a3 b7 a2 c6 h3 c5 h2 c7 Ra7 c8R Nh6 g8R Ra5 c6 Na6 b8R Nc5 Be3 Na4 Na3 Rh7 Qc2 Kd6 Ba7 Kd5 Rb7 Nc3 Bb8 Rb5 Bg2 Be7 Rd1+ Kc5 c7 a1Q Re1 Qa2 Re4 Qd5 Rg5 Qc6 Rg7 Bg5 Rd7 Bf6 Rd1 Qb6 g5 Rd7 Rd3 Nf5 Kg4 f3 Kh5 f2 Nf3 f1Q Nh4 Nd6 Kh6 Qe2 Rg3 Be7 Qa4 Kd5 Nc2 Kc5 Rd1 h1Q Ne1 Bf6 Qc2 Be7 Rf4 Ne4 Nd3+ Kc4 Rfg4 Qd4 Rf4 Nf2 Re4 Bf6 Nc6 Be7 Rh8 Bd8 e7 Qh3 Ree3 Qh1 Rh7 Qa7 Nd4 Qa8 Ne6 Qg1 Qb1 Kb3 Re4 Nh3 Rf7 Qd4 Rff1 Nf2 Rh1 Qb6 Qc2+
1rB2rrb/B3nRNR/p1bP1P2/1r6/1NpRn3/N5QP/N4P2/2K3kN b - - 0 1 legal: proof: e4 d5 g4 b5 c4 f5 cxd5 b4 exf5 b3 axb3 Nd7 b4 Ne5 b5 Nd7 b6 Nb8 b7 Qd7 Bg2 Qd6 Bf1 Qd8 b4 h5 gxh5 Bd7 b5 Bc8 d6 Kf7 d7 Rh7 Ba3 Rh6 Bc1 Rh8 Bg2 c6 Bh3 a6 Bf1 Qb6 Bd3 Rh6 Bf1 Qa7 b6 Rh7 bxa7 Rh8 d8N+ Kf6 d4 e5 Kd2 Kg5 d5 Kh4 d6 g5 f6 e4 h6 c5 h7 c4 Ne2 g4 Qb3 g3 Ne6 g2 Qg3+ Kh5 Ng7+ Kh6 Na3 g1R Bh3 Nd7 b8N Bb7 Nc6 Nc5 Nb4 Bc6 Na2 Ne7 Bc8 Rb8 a8N e3+ Kc2 Rg8 Nb6 Ne4 Nd5 Rd1 Bd2 Rdb1 Ndb4 Rb3 Kc1 Rb5 Nf5+ Kh5 h8R+ Bh6 Rb1 Rf8 Rg8 Bg7 h3 Bh8 Rg7 Rb8 Rd1 Rb5 Ned4 e2 Rf7 e1R Be3 Rg1 Ne2 Rb2 Ba7 Rb8 Qe3 Rgg8 Ng7+ Kh4 Qb3 Kg5 Ng3 Kf4 Nh1 Rb5 Rd4 Rb8 Nd3+ Kf3 Ndb4+ Kg2 Qg3+ Kf1 Nbc2 R2b7 Rb5 Rb6 Ncb4 R6b7 Rh5 Rb5 Qb3 Kg2 Rh7 Kg1 Qg3+
2B1RBR1/1P1p1r2/BQ1N1br1/1K1pN3/2p2q1r/P2N4/1PP1b1B1/n1k1B3 b - - 0 1 illegal: Other
B3K1R1/pp4q1/bbkBB1N1/b2Q4/N2P3n/B2q1P2/1RPP3p/3Bn1N1 b - - 0 1 illegal: Other
5n2/4bKnp/n4P2/b6N/1pP1B1PP/Q4b2/kBBN1bRp/N3N1NR b - - 0 1 illegal: Other
5bN1/R6B/1B1R1Pp1/b1Pr2PQ/2K1PBN1/Rpn2p1b/2p3k1/nB2B3 b - - 0 1 illegal: No proof kernel
n4N2/1N1Q2RN/K1b4q/NrB1Pkr1/3qRbR1/bP1P2n1/1NB2nP1/1r6 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 e4 Kd7 Ke2 f5 Kd3 h5 Kc4 c5 d6 Ke6 b3 a5 g6 h4 d7 f4 b6 h3 Kb5 h2 g7 f3 b7 f2 Ra4 c4 Bd3 f1N Nh3 c3 Bc2 Qf6 Nf2 Qh6 Na3 Na6 b8N Bb7 Nd3 Nf6 g8N Ng3 Nb2 Ng4 Nac4 Ba3 Nf6 Rg8 Nh7 Rg5 d3 Ra7 Be3 Nf2 Bc5 Nc7+ Kb6 Bc6 Qg4+ Rf5 Rb4 a4 Na5 Ra8 Re1 h1R d8R Rg1 Nd7 Rb8+ Ka7 Rb5 Rg8 Na8 Ka6 Rf1 Re2 Rb1 Ndf8+ Kf7 Qh3 Rh5 Rg4 Rg5 e6+ Kg7 e7 Kf7 Bd1 c2 e8N c1B e5 Bf4 Nd6+ Ke7 Ndb7+ Kf7 Nd7 Kg6 Ndf8+ Kf5 Rbe4 Bb4 Bc2 a3 Rc4 a2 Ree4 a1Q Rcd4 Qa4 Rd7 Ba3 Rg7 Qc4 Qh5 Qa4 Qe8 Qd4 Qd7+
bR2b1r1/P3b3/b5NN/2BPK1nB/2r1PBrn/1BRRP3/q4kQ1/2b4B b - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 e5 cxd5 a5 b4 e4 bxa5 e3 fxe3 Bf5 e4 Bc8 Kf2 Kd7 Ke3 Kd6 Kf4 Kc5 g4 Kd4 a4 f5 d6 h5 a6 b5 a7 c5 d7 c4 a5 c3 a6 b4 g6 c2 g7 b3 g5 h4 g6 h3 Nf3+ Kc4 Ne5+ Kd4 Ra3 b2 Nf7 h2 Nh6 Nf6 g8R Nh7 g7 Nc6 Rc3 Ne5 Na3 b1R Nc4 Nf3 Ne5 Rb4 Ng6 Qa5 d8B Nhg5 Be7 Qa2 d3 Rab8 a8B Rc4 a7 Ba6 Rg1 h1B Rg3 Rb5 Bd2 c1B Qb3 Rd5 Bb4 Bc5 Rb8 Nh4 g8B Be7 Bh3 Bb5 Bg4 Be8 Bh5 Rb5 Bgd5 Rg8 Ba3 Rbb4 Re3 Kc5 Ke5 f4 Rh3 f3 Bf4 f2 Re3 f1B Bab7 Kb6 Rf3 Rb5 Bc5+ Kc7 Bfe3 Kd7 Qd1 Rb2 Bf4 Bhg2 Rg3 Rd4 Bb3 Bh3 B7d5 Be6 Bb7 Bd5 Qd2 Bc6 Qe3 Bd5 Ba6 Ba8 Bc8+ Kc6 Bcg4 Bg2 Bf3 Bf1 Bb6+ Kb5 Bh1 Kb4 Qf3 Kb5 e3 Rg2 Rh3 Rg1 Rh2 Rg4 Qh3 Ra4 d4 Kb4 d5 Ba6 Rb2 Kb5 Rcc2 Kb4 Rd2 Kc3 Bc5 Rc4 Rdc2+ Kd3 Rb1 Bb2+ Rc3+ Ke2 Rd1 Bc1 Rdd3 Kf2 Qg2+
r2B4/bqb3RQ/1nR1b2P/1K3P2/3rPNPR/N2k3n/Rn6/Nb2RBr1 b - - 0 1 illegal: No proof kernel
2NNnB2/2N2r2/bR1bPb2/P6B/1nbn1P2/2KQ1P1q/1R1Bq3/BB3r1k b - - 0 1 illegal: No proof kernel
8/1kNR1K2/1qBQPNnb/Pq1r1BPb/N1nnR1NP/b7/7B/2n1N2r b - - 0 1 illegal: No possible last move
1BB5/NPb1Pq2/r3r2n/N1RP4/1KQRn2r/1P1RR3/1RrB1n2/k4q1b b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Ke7 h4 c5 d4 g5 Kd2 a5 Kc3 f5 b6 c4 h6 f4 d6+ Ke6 h7 g4 b3 g3 b7 a4 h5 a3 d7 g2 h6 f3 Qe2 f2 Ra2 Ra4 Bd2 Qf6 d8R Bg7 Rh5 Qf7 Rb2 a2 Nf3 g1N Na3 a1R Nb5 Ra6 Kb4 c3 Na7 c2 Rh4 c1R Bh3+ Qf5 Rd5 f1Q Rc5 Bd7 Rf4 Bc6 Qc4+ Bd5 Rh4 Rc2 Rf4 Ke7 e6 Kd6 e7 Be5 e8R Qf7 Bc8 Re1 Rg4 Bf4 Ne5 Nd7 Nec6 Nh3 Na5 Nf2 Rd8 Ke6 e5 Kf5 e6 Ke4 e7 Ndf6 Rg3 Bc7 Rc3 Re6 Rd3 Ra1 N5c6 Ra6 Na5 N6g4 Rd6 N8f6 Re3+ Kf4 Rd8 Bh1 Rd3+ Ke4 Rd7 Rg8 h8R Rg7 h7 Nh6 Rhd8 Rg4 h8B Rh4 Rh3 Nh5 Be5 Ng3 Qd5+ Kd3 Bef4 Ke2 Qc4+ Kd1 Rdd5 Nge4 Rd3 Bb6 Bb8 Bc7 Re5 Nc3 Ree3 Nce4 Bc3+ Kc1 d5 Qg6 Rg8 Qe8 Rg4 Qf7 Ra2 Kb1 Rb2+ Ka1 Bd2 Ng5 Rgd4 Nge4 Ka3 Rg6 Ka4 Rge6 Kb4
rr2qB1n/R1B1N2P/K1QRb3/4N3/1bBr1P1P/3n1P1k/2Rn2B1/2rB1n2 b - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 h5 gxh5 f5 a4 f4 axb5 f3 exf3 Nf6 f4 Ng8 Ke2 Kf7 Kd3 Ke6 Kc4 Kf5 h4 a5 b4 e5 h6 g5 h7 a4 c6 a3 b6 d5+ Kb5 e4 c4 e3 c5 d4 c7 e2 b7 Kg4 c6 d3 Nc3 d2 Nd5 a2 Rh2 Nf6 Ba3 Bd6 Qc2 e1R Bc4 d1R Nf3 Na6 b8R Be6 c8B Rd4 c7 Ne4 Ne7 Nd2 Bb7 Rc1 c8B Qe8+ Kb6 Nc5 b5 Nd3 Ne5+ Kh5 Bb4 g4 Bh1 g3 Rb7 g2 Rd7 Rb8+ Ka6 g1N b6 Nh3 b7 Nf1 Qa4 Rg8 Qc6 Ng5 Rd8 Bc5 Rd6 Nf7 Bd7 Nh8 Rg2 Rc8 b8B Rd8 Bc7 Rb8 Qe4 Rf8 Ba4 Rg8 Ba3 Bb4 Qc6 Rf8 Rb1 a1N Bd1+ Bg4 Rb2 Nb3 Rc2 Nbd2 Rg3 Nf3 Rg2 Be6 Rg7 Rg8 N5g6 Kg4 Ne5+ Kh3 Rf7 N3d2 f3 Rb5 Rf8 Qg6 Ra8 Qe8 Ra7 Rb8 Bd5 Qf8 Rd8 Rb7 Nf5 Bc3 Bc4 Qe7 Rd7 Ra8 Bad6 Qf7 Bf8 Rbb8 Rd6 Qe8 Ne7 Bb4 Bg2+
B1Q2R1n/K4BN1/R2N2Br/n1Npb1kP/5q2/rb4P1/rnPP1B2/3B2b1 b - - 0 1 illegal: No proof kernel
3n1B2/4RBpR/k3rn1P/3b1rb1/1NqrQ3/1B3bPP/KPN1Bn2/2R4B b - - 0 1 illegal: No proof kernel
1qQR1rqk/8/N6B/2Knb2r/P1n1bP1n/2b3RR/P1P1p1R1/1B1RN2B b - - 0 1 illegal: Other
B1N3N1/r1B1r1Rb/1BP3R1/N7/1P2P1P1/qnb3p1/1k2rBQn/3K1bBq b - - 0 1 illegal: No proof kernel
q1r1Nn2/2BP4/kB2B1nb/r1B1b3/1PRQ4/Nbp1R1PP/4N1q1/2rBK3 b - - 0 1 illegal: No proof kernel
5N2/Nn1P1R1B/1nP1Q3/N4PP1/2q1bqpK/rq2B3/br2N2b/R2B1k1N b - - 0 1 illegal: No proof kernel
B1R2Qkq/r1P5/q3b1p1/8/2nRPP2/qPN4N/1BBrRK2/r1b1nB1B b - - 0 1 illegal: No possible last move, all moves rejected
Rnrqb1Br/pR1n3P/1R1N1R2/1r1b4/1qN1N1R1/P2K1nQ1/P4BkP/8 b - - 0 1 illegal: No possible last move, all moves rejected
q2r2Nr/rPr2RPQ/Nb1n1B2/1N2N1K1/7N/R2np2k/1P4bP/rB5B b - - 0 1 illegal: No proof kernel
6Br/2B2BQP/5nn1/nnRP2PN/1r1P2R1/1NbBk3/1p1qR3/B4bKb b - - 0 1 illegal: No proof kernel
K4b1n/B2R1qrP/nQB3p1/2n5/2B2R2/2R1r3/P1NNPkP1/1rB1bBn1 b - - 0 1 illegal: No proof kernel
3nb1B1/b2bK1Pn/p1R1B2k/1PnR3q/1Q1R1NrR/6b1/2N1PP2/B2rR3 b - - 0 1 illegal: No proof kernel
2q1Bbk1/2PNR2P/2PQ1nrB/2r1NNr1/1K3n1N/1RP1nb1B/p7/2n2N2 b - - 0 1 illegal: No possible last move
Nn1B4/pP3K2/Pn4Qr/1knP2q1/N2N1N2/R2BP1b1/b2n3N/1r1r1B1R b - - 0 1 illegal: No possible last move
1Rkbr2n/r1nR1qBQ/p1B3B1/P1P3b1/3NB2r/1B3P2/KP2N3/2N1r2q b - - 0 1 illegal: No proof kernel
b2nnR1B/P2N1Rr1/rP5b/qNQ4P/2Brq3/P2R4/p3r1k1/2RK1B1R b - - 0 1 illegal: No possible last move
4b2R/NnbBpR1n/5P2/rN1B1Kb1/QP6/2PrP1B1/kNN1r2n/2b1N3 b - - 0 1 illegal: No possible last move
1qr1bN1k/4b2b/pBpBPNP1/1n6/1PB1r3/2B2RRB/1Q3P1K/rn3N2 b - - 0 1 illegal: No proof kernel
r1N3Rr/nbq3P1/R3QB1b/1rp2n2/2KpP1k1/3RBN1n/P1B2P2/4R1R1 b - - 0 1 illegal: No proof kernel
8/KbPrRrP1/pP2Pn1B/2N1n1n1/1QNk2N1/1R1N2p1/2q1R3/3BrNb1 b - - 0 1 illegal: No proof kernel
2KR3b/1PB1pPr1/4N3/q3N2N/Bn1b1N1p/3Pn1NP/1QRb3k/1R4nr b - - 0 1 legal: proof: g4 d5 a4 f5 f4 b5 axb5 d4 gxf5 d3 f6 Nd7 e4 Ba6 e5 Bb7 e6 Nb8 f5 Bc8 cxd3 Bb7 d4 Bf3 d5 Bh5 Be2 Bg6 Bf1 Bf7 exf7+ Kd7 Kf2 Kd6 Kg3 Ke5 Kg4 c5 b4 g5 h3 a5 b6 a4 d6 h6 b5 c4 d7 a3 Rh2 a2 Ne2 c3 Na3 c2 Nc4+ Ke4 d3+ Kd5 Bf4 c1B Qc2 Ra3 Qb2 Ra4 Bg2+ Kc5 Bc6 Qe8 d8R Na6 Bc7 Bg7 f8N h5+ Kf3 g4+ Ke4 h4 Ke5 g3 Ke6 g2 Ng3 Nb4 Ng6 Nh6 Nce5 Rh7 Nf4 Ng4 f7 g1N f8N Nf3 f6 Bh8 f7 Rg7 Rd4 Qa8 Kd7 Qa5 Re2 Ra3 Kc8 Rc3 Rb1 a1B Qb3 Be3 Ra2 Rc1 Rc2+ Bc3 Qb2 Bg1 Rd8 Bf2 b7 Rh1 b8N Ng1 Nbd7+ Kd4 b6 Ke3 Ba4 Bd2 Neg6 Kf3 Nfh5 Kg2 b7 Kh2 Ngf4 Bd4 N8e6 Ne3 Ne5
2N4R/P6P/q2pnrB1/B2R1P2/3N2pn/1KN1B1P1/Q1rBbnbk/2r3B1 b - - 0 1 illegal: No possible last move
1K6/2QN3q/1b1NR1Np/1Bq2P1N/1n1Pr1P1/2r1Bqp1/1k2N1bP/1nB2R2 b - - 0 1 illegal: No proof kernel
3qbRK1/1Q2RB2/BB2p2P/4rPN1/Nr2n2B/1P1kP3/p1rqN1b1/1n3B2 b - - 0 1 illegal: No possible last move
2NB1N2/2PrP1PR/q2pN2r/nRnP4/B1kp2b1/3B3b/3KQ2n/B1B3q1 b - - 0 1 illegal: Other
2n3q1/NP1KQ3/pPp4N/q4rBB/1PR3B1/k7/PNN1r1bb/1rN2Rn1 b - - 0 1 illegal: No proof kernel
bQ1R4/KR2n3/1rRnRp1R/2k2r1q/5PN1/N2P4/PBr1p1BP/1r2bB2 b - - 0 1 illegal: No possible last move, all moves rejected
1n1r1B1R/KP6/Q3pPB1/P5NR/1p1P1rRq/kN3bRN/1r1r4/R3bn2 b - - 0 1 illegal: No proof kernel
q1RnNK2/P3B1pP/r2b3B/4PB2/2P2Q2/3pR3/kNb1NNn1/1Nbr1b2 b - - 0 1 illegal: No proof kernel
1bB5/P1Nbp3/RPkBq2B/3N1r1N/Qr1N1n2/Rp4b1/nP5P/2bK1N2 b - - 0 1 illegal: No proof kernel
R1B1q3/B3N3/RKPn4/3p1P2/pnqP1qr1/4B2b/P2N2k1/1BrnQ1BR b - - 0 2 legal: proof: f4 c5 g4 h5 gxh5 e5 e4 f5 exf5 e4 b4 Bd6 bxc5 Be5 fxe5 Ke7 Bb5 Kf8 Bf1 Ke8 Kf2 Ke7 Ke3 b5 Kd4 a5 c4 g5 h4 d5 d3 a4 e6 Kf6 h6 g4 c6 b4 Kc5 Ke5 c7 b3 e7 g3 e8R+ Ne7 h7 b2 h5 e3 h6 Kf4 Rf8 g2 Nh3+ Kg3 Kb6 g1Q c5 e2 Be3 e1Q c6 Na6 Nd2 b1N Nf4 Qe8 Ng6 Qe2 Qe1+ Qgf2 Rg8 Bb7 c8B Nc3 Rb1 Nb4 Bg2 Qf1 Be4 Nd1 Rf8 Rg8 h8B Ra5 h7 Ba6 Bhd4 Rc5 h8B Rc1 Bc5 Bb5 d4 Qc4 Be5+ Kg4 Bh2 Kh3 Bd3 Kg2 Bg1 Qf4 Rb3 Ba6 Bb1 Rg7 Ne5 Rg4 Ng6 Qc3 Rg8 Bf1 Rgh8 Qc4 Rf8 Ng8 Ne7 Nh6 Rh8 Nf7 Rf8 Na6 Rb5 Nb4 Ra5 Nd6 Ra6 Qf3 Kc7 Qf4 Ba7 Nf7+ Kb6 Nd6 Nb3 Kf3 Rg8 Bh3 Nd2+ Kg2 Be6 Qf7 Ra8 Qe8 Bc8
q1B5/1qrk1N2/N2Pq1N1/B2P1r2/1p1p3K/3P1PB1/RRn3b1/nnQBB3 b - - 0 1 illegal: No possible last move
3n1R1N/1BBnR2q/7N/p3PbQ1/NP1P2rp/K4n2/PNk5/q2qrBN1 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 e4 d5 exd5 e4 c4 Bd6 cxb5 Be5 fxe5 Qf6 Qc2 Qe7 Qd1 Qd8 b4 Kd7 d4 a5 Kd2 c5 Kc2 h5 Kb3 f5 g4 e3 g6 e2 d6 Ke6 b6 Kd5 d7 Ke4 g7 e1Q g5 f4 b7 c4+ Ka3 f3 g6 f2 Nc3+ Kf5 Bg5 Nh6 g8B Qc7 d8N Nf7 g7 Nd7 Qc1 Qd1 Na4 Ke4 b8N c3 Na6 c2 Nb2 Ra7 Qd2 c1Q Bh4 Rb7 Qg5 Rb6 Bh7+ Rg6 g8N Q7c2 Nh6 Rf8 Ne6 Nd8 Nf4 Ke3 Rb1 Kd2 Nc5 Rg7 Bg8 Qh7 Na4 Kc2 Ng6 Rf4 Bd5 Re4 Ra1 Re1 Nh8 Rg6 Bb7 Rg8 Bfg2 f1N Rh2 Nd2 Bf1 Qb1 Rf2 Rg7 Rf7 Nf3 Re7 Qbc1 Qe3 Rg4 Bf6 h4 Qg5 Nb8 Rb1 Bf5 Ra1 Qf4 Rb1 Nd7 Rc1+ Kd2 Rc8 Qa1 Ra8 Kc2 Rb8 Qd2 Ra8 Ne6 Rf8 Qdd1 Ref7 Rg3 Bd8 Rg4 Bc7 Nd8 Re7
B1RB1q1n/q1q2b2/p2PB2r/QkN3NP/2Nb1P2/3N4/P1brR1Kp/6N1 b - - 0 1 illegal: No proof kernel
1B2b3/3rQ3/1pB5/3NKBR1/BrrPNn1b/1Rp1n1PP/2Pb4/1kn3RB b - - 0 1 illegal: No proof kernel
4N1r1/6nb/kbp3rQ/1P1P1N2/1bNNq1pP/3NB1PR/1Bb5/b2B1KR1 b - - 0 1 illegal: No possible last move, all moves rejected
3b3R/RN1R1pNK/1rqQ4/bP2pPR1/k1P1Pb1n/5n2/n3R2B/1BN3b1 b - - 0 2 legal: proof: c4 b5 a4 h5 axb5 h4 b4 h3 b6 Na6 b5 Rh5 b7 Rh4 b6 Rh6 gxh3 Rh8 h4 Nb8 h5 Rh6 Ra2 Rh7 Ra1 Rh8 d3 c5 Bg5 a5 Nf3 d6 Bh6 a4 Ng1 Ra5 Bf4 Rb5 Bc1 Be6 cxb5 c4 Bg2 c3 Bf1 Bc4 dxc4 Rh6 Nd2 Rh7 Nb1 Rh8 h4 Kd7 e4 e5 Ke2 g5 Kf3 d5 Kg4 a3 f4 c2 h6 d4 Kh5 a2 f5 g4 h7 g3 Na3 g2 Bf4 c1B Nc2 d3 Rh2 d2 Ne2 g1B Ncd4 Bca3 Nc1 Ne7 Re2 Bc5 Bh2 Nbc6 b8N+ Kd6 b7 Ng6 Nd7 Qe8 b8R Bb6 Ne6 Nd4 Ng7 Nf3 Kh6 Bd8 h5 Ngh4 Nc5 Qc6 Rb7 Rg8 h8R Bfe7 Rb1 a1B Kh7 Bc3 h6 Bca5 Ra7 Bg5 Nb7+ Kc7 Rb3 Kb6 Rd3 Bf4 Rd7 Re8 Rg8 Re6 Qa4 d1N Qa3 Rg6 Qd6 Rf6 Ra2 Re6 Bd3 Nc3 Re2 Na2 Bb1 Rg6 Nh5 Rf6 Rg5 Rg6 Ng7 Rf6 Qd1 Re6 Nd6 Kc5 Nb7+ Kb4 Qd6+ Ka4 Kg8 Qc8 h7 Qa8 h8R Rg6 Qf8 Rb6 Kh7 Qc8 Qc5 Qc6 Qd6
3k3r/B1R2nB1/1n1PRp1R/1bP2K2/1q3P2/1rP1rN2/Bn1pR3/2RQN2r b - - 0 1 legal: proof: g4 b5 d4 h5 gxh5 c5 a4 d5 axb5 e6 e3 Be7 dxc5 d4 Qf3 d3 Qe2 Bf6 Qd1 Bd4 exd4 Ba6 Bf4 Bb7 Bc1 Bc8 Kd2 a5 Ke3 g5 Ke4 d2 b4 a4 h4 a3 f4 e5 b6 g4 h6 g3 h7 g2 b7 a2 b5 Qd6 d5 Qe7 b6 Na6 b8B Be6 d6 Bd5+ Kf5 e4 b7 e3 h5 e2 h6 e1N Ba7 Rc8 b8R Bc6 Bb2 Nb4 Rh2 Bb5 Bc4 Kd8 Rb7 Nd5 Nf3 g1R Rc7 Nd3 Na3 Re1 Rc1 a1R Ba2 Re3 Re2 Nb6 Bg7 f6 c3 Nb2 Nc2 Ra8 Nce1 Qe4+ Kg4 Qb4 Kf5 Ne7+ Kg4 Nc6 Kf5 Rhe8 h8R Rb8 h7 Ne5 Rg8 Nf7 h8R Rb1 Rh4 Rf8 Rgh8 Rfe8 R8h7 Rh8 R4h6 Qa4 Nd3 Ne5 Rc2 Bc6 Qf1 Na8 Bf8 Rb3 Rhe7 Nf7 Bg7 Nb6 Re6 Qb4 Qh1 Rf1 Rc1 Bb5 Qg1 Rf2 Qf1 Rh2 Qd1 Rh1 Nde1
2K5/4bnn1/3p1R1R/n5rR/qnQ2P1N/BrP1Pp2/1N1PBk2/RBrR4 b - - 0 1 illegal: No proof kernel
nRrR3N/1R1p3P/1r1PN1BN/rp2P1k1/8/Qbnq4/3BP1KR/1rRq4 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Nf6 bxa5 Ng4 c4 Bc5 a6 Bb6 c5 Nh6 cxb6 Ng8 Kf2 Ke7 h4 g5 a4 f5 d4 c5 a7 g4 a5 c4 a6 g3+ Kg2 f4 d5 c3 d6+ Ke6 b7 Kf5 h6 c2 h7 Qg5 h5 Qg7 h6 Qg5 Nh3 Nf6 Bd2 c1R Nf2 Qg6 Rh2 Ne4 Qb3 Rc6 Qa3 Kg5 Ng4 Rb6 Nc3 Rd8 Nd5 Nc3 h8N Qd3 h7 Re8 Kg1 g2 Rc1 Rd8 Kf2 g1R Bh3 Rh1 Nh6 Rd1 Be1 f3 Bf5 Re8 Kg1 f2+ Kg2 Rf8 Bg6 Re8 Rc2 Rb1 Nf4 Rd8 Bd2 Re8 Rh4 Rd8 Rc1 f1Q+ Kh2 Qd1 Kg2 Nc6 b8R Na5 Rh2 Bb7+ Kf2 Bf3 Rb7 Nc4 Kg3 Rac8 a8R Bd5+ Kf2 Bg8 Kg2 Re8 Raa7 Ra8 Rb8 Rc8 Rc7 Rc6 a7 Nb6 Rcb7 Bb3 Qb4 Nbd5 Qa5 Nc7 Qa1 Rb6 Qa3 Re8 Rd8 Rc8 a8R Rf8 Rab8 Na8 Nd5+ Rf4 Be1 Rb4 Nf4 Ra4 Bd2 Ra5 Ne6#
1b2n2N/2kq3N/P1R2p2/nR2p1RP/bB3PR1/4N1K1/r1B1Pp1n/R3r2Q b - - 0 1 illegal: Other
7q/3P4/pN1PN2p/3Brp2/2RP1Rbn/kQ1NPr1R/4K1nN/b3nNB1 b - - 0 1 illegal: No proof kernel
1q3B1R/1QP1B1K1/1Bp1Rr2/r1N1qN2/3Bp2P/N4np1/4PbkP/1b1B2n1 b - - 0 1 illegal: No proof kernel
K3n3/B1bp1pbq/B1R5/2NBr3/1Q1P1bp1/r5Nr/PNP2PkB/1R4B1 b - - 0 2 illegal: Other
2K5/rpnN1Pb1/3k1p1R/N4R1b/5P1B/PP1NpN1q/Rn3qn1/1BN4Q b - - 0 2 legal: proof: h4 g5 g4 a5 f4 h5 gxh5 d5 e4 c5 d4 a4 c4 g4 cxd5 a3 Nxa3 c4 h6 f6 b3 c3 e5 c2 h5 Bd7 d6 Bc8 d5 Be6 h7 Kd7 h6 Na6 Nb5 Qb6 a3 Re8 Na7 Kd8 Nb5 Bd7 e6 Bg7 Na7 Rf8 Qd3 Rf7 exf7 Bf8 Qd2 Nc5 Qd1 Na6 Ke2 e5 Kd3 e4+ Kc4 e3 Rh5 g3 Nf3 g2 Nc6+ Kc8 Ncd4 g1Q Rf5 Nc7 Ne2 Be6 d7+ Kb8 d8N Bd7 d6 Ba4 d7 Qg6 Bd2 c1N Ra2 Bb4 Be1 Qg1 Bh4 Qa7 Ne6 Qa5 d8N Bd6 Nf8 Nd3 Nc1 Bc6 Nd7+ Kc8 Bh3 Qf2 Qh1 Bf8 Kd4 Be4 Nc6 Nb2 Bg4 Qae1 Na5 Ne7 Kc5 Bg7 Kb6 Ng6 Bh3 Rg8 h8R Qef1 h7 Bd3 Bg4 Be2 Ka7 Kd8 Kb8 Qh3 Bh5 Nf8 Bg6 Ke7 Kc8 Kd6 Rc5 Bd1 Bb1 Be2 Ne5 Bh5 Nf3 Bh6 Rb5 Rg5 Rf5 Ng6 Rf8 Bg7 h8N Ne5 Ng6 Ned3 Re8 Ne1 Nge5 Ng2 Rg8 Rg6 Ned3 Rg5 Rb5 Rc5 Rh8 Rc4 Rh6 Ra4 Nc6 Ra6 Na5 Ra7 Rf5
2B1q3/1p1n1p2/1RbPn2K/r2B3n/1P1RQNqP/1k3Rp1/3B1P2/BB3rN1 b - - 1 2 illegal: No possible last move
2rb4/nnPB1NR1/3rpP1p/B2b4/1NPk2KQ/4pn1P/6b1/RR1RN1R1 b - - 0 1 illegal: Other
1KN1q1b1/BQPP1B2/PpR1B1bb/b2BR3/B4p2/5P2/2R2np1/krnN4 b - - 0 1 illegal: No proof kernel
2k5/K1pr1NQ1/R2rrrNB/2Rnq3/pR1p3R/2PN3B/P2P2P1/1r4bR b - - 2 3 legal: proof: h4 g5 hxg5 f5 e4 b6 exf5 Bb7 b3 Ba6 Nf3 Bb5 Ng1 Ba4 bxa4 b5 Ke2 b4 Ke1 Nc6 Rh2 Nd4 Rh1 Nb5 axb5 Bh6 Ne2 Bg7 Ng1 Bf8 Ke2 a5 Kd3 e5 Kc4 h5 f4 e4 b6 d5+ Kb5 Kd7 c3 a4 g6 h4 b7 d4 b8R b3 f6 b2 f7 h3 g7 e3 f5 e2 f6 e1R Qg4+ Re6 Nf3 h2 Ng5 Rh3 Bd3 Be7 f8N+ Kd6 f7 Rhe3 Na3 R3e4 Ng6 Kd7 f8R Bd6 Rf6 Ne7 g8R Nc8 Nf7 Bf4 Nc4 b1R+ Nb2 Re3 Bf5 Qe7 Qg3 Be5 Bh3 Rf3 Rh8 Rf4 Rh5 Ra6 Rb7 Bd6 Rc5 Nb6 Qg4 Kc8 Kc6 Ra8 Nd3 Nd5 Rb4 Ra6+ Kb5 Be5 Ba3 Rd6 Qg5 Rd7 Qh6 Rf5 Qg7 Bf4 Ka5 Be3 Kb5 Bg1 Ka5 Re2 Ka6 Qe5 Ka7 Re3 Ra6 Rf6 Rbc4 Rbb6 Rb4 Rbd6 Rab1 Qg3 Re1 Ree6 Re4 Qe5 Rh4 Bf2 Ra1 h1R Rf1 Rh2 Rh1 Bg1 Bf5 Rh3 Bg4 Re3 Bh3 Re1 Rbb6 Nb4 Qh8+ Rd8 Rca5 Nd5 Rab5 Rc6 Bf8 Ra1 Rc5 Rd7 Rb4 Rb1 Qg8 Rcd6 Bh6+ Re8 Qh7 Ree6 Qg7
r1nK2BQ/2Rb1rpn/4kP1P/N2Rp2p/1pPRq2P/2B5/2N3B1/1rR4R b - - 0 1 legal: proof: d4 f5 e4 e5 exf5 a5 b4 c5 bxa5 h5 dxc5 Be7 g3 Bg5 g4 Bh6 g5 Ra6 gxh6 Ra8 Kd2 Kf7 Kd3 d5 a4 b5 h4 d4 Ke4 d3 f4 b4 c4 d2 a6 Nc6 f6 Be6 a5 Qe8 a7 Rd8 a8R Rd5 a6 Qb8 f5 Nce7 c6 Bc8 a7 Rd7 c7 Ba6 c8R Qb5 Nf3 Rc7 Bb2 Rb7 Rc7 Qe8 Nd4 Qd7 Nc6 Nd5 Bc3 Rb5 Na3 Rb7 Rd8 Rh7 a8B Rb8 Na5 Rc8 Bg2 Bb7 Rc1 Bc6 Nc2 Rh8 Qg4 Qe7 Rd6 Nb6+ Rd5 d1R Qg5 Kf8 f7 Bd7 Bb7 Qe8 Qd8 Ra8 Rd4 Rf1 Bd5 Nc8 Be6 Rg1 Kd5 Nf6+ Kc5 Nh7 Bed5 Ne7 Kb6 Rd1 Qb8 Nc8+ Kb7 Ke7 f8R Rf1 Bg8 Qg6 Rf6 Qg4 Rfd6 Qe4+ R6d5 Rd1 Bf7 Rf8 Bg8 Rf7 f6+ Ke6 Rc5 Qe2 Kc7 Qd3 Kd8 Qe4 Rc7 Rg1 Ra1 Rb1 Rc1 Rb3 Rh1 Rb2 Rac1 Rb1 Rc6+ Nd6 Kc7 Nf8 Bh7 Ng6 Qh8 Nf8 Bg8 Nh7 Rcc5 Nc8 Kd8 Ba4 Rc7 Bc6 Rc5 Bd7 Rcd5
3kNR1n/R1p2p1q/1R4N1/P2p2B1/2P3RR/P1p2b1b/1rBb3P/2r2BKQ b - - 0 1 illegal: Other
N2N3B/2Rqp3/r1Pp2r1/NQ2pbnk/3pp2n/1P1P4/P2B2BB/1R2KB2 b - - 0 1 illegal: Other
k5q1/2QNK3/p1Pn2p1/b2r1p1P/p1N3P1/2Np1PNn/2rB4/RNBR3B b - - 1 2 illegal: Other
1q1q1BRK/pnBR1BnR/P3kN2/2P5/1B2pB2/2P1PQ2/4brNr/b2r3n b - - 0 1 illegal: No proof kernel
n2N1NNK/Pnkq1p1b/r1PB2bb/p3BBNq/P3n3/6r1/N1R1QP2/7R b - - 0 1 illegal: No possible last move, all moves rejected
N4b2/n1Rp1b2/R4N2/rNp2qnP/2q2rr1/B2PKP2/2PNBn2/QRN4k b - - 0 1 legal: proof: e4 f5 exf5 h5 a4 b5 axb5 Ba6 g4 Bb7 gxh5 Bc8 Ke2 Kf7 b4 Kf6 h4 Ke5 d3 c5 h6 a5 h5 g5 h7 g4 b6 g3 f6 g2 f7 a4 b7 a3 b5 a2 b6 Nc6 b8R Ba6 b7 Na7 Kf3 Bc4 Ba3 Nh6 Rc8 Ng4 Ke2 Kf4 b8N e5 Rc6 e4 Nd2 e3 Rb1 a1Q Na6 Qh4 Rc7 Qaf6 f3 Kg3 Qc1 Rg8 h8N Qf5 Rb6 Rg7 Qa1 Nf2 Rd6 Rg4 Rg6 Bh6 f8N Bf7 Nh7 Bf8 Rgc6 Rf4 Nf6 Qhg4 Rb6 Qg8 Rb1 Qgg4 Rh4 Qg8 Rg4+ Kh2 Rg6 Kh1 Rh6 Be8 Rg6 Qc4 Nf7 Rg4 Nd6 Bf7 Nb5 Rf4 Nh3 Rg4 Nf4 g1N+ Ke1 Ngh3 Ne2 Ng5 Nc1 Re8 Ke2 Ree4 Rc6 Ref4 Nac7 Rg3 Na8 Rgg4 Ke1 e2 Rc7 Qa2 Nfe4 Qad5 Ra6 Qc4 Nf6 Qce6 Ndb3 Qc4 Kd2 e1R Be2 Rf1 Ke3 Rfg1 Na2 Rc1 Nd2 Rcg1 Rb3 Rb1 Nc1 Rb2 Bb4 Ra2 Rb1 Ra5 Ba3
2N1bNBK/2q2R1p/1qn1N1p1/bnr1N1R1/2r2b2/1BB4P/P1N1PkP1/b5Q1 b - - 0 1 illegal: Other
n1R5/rq1N1N1n/k1B3rR/N1Np1n2/6Pb/2b1N2p/1PpPK2P/1bB3BQ b - - 0 1 illegal: No proof kernel
4BBQ1/K1b1Bb1r/2p1p1Nr/R1P1n2P/rRRn4/p2qNkb1/2P1P2B/4B3 b - - 0 1 illegal: Other
3Nnk2/2N4r/P1R1p2n/1R1R2B1/bqBpP2R/5prq/KP2QP1b/3N1Rb1 b - - 0 1 illegal: No proof kernel
1Bb2RR1/p2R1pb1/1r3R2/1b4K1/1q3nb1/1N1QNN1p/P1B1PPPk/4Rn1r b - - 0 1 illegal: Other
N4K2/p1br3p/1qN1Q1N1/P1kqPRRR/r1B1bn2/1p4B1/1P1N2qP/1b3N2 b - - 0 1 legal: proof: f4 e5 c4 d5 cxd5 f5 fxe5 f4 g4 Nc6 Nf3 Nd4 Ng1 Nf5 gxf5 Qg5 Qb3 Qf6 Qd1 Qd8 Kf2 Kd7 Kf3 c5 Ke4 g5 a4 b5 d4 g4 e6+ Kd6 a5 b4 e7 b3 e8N+ Ke7 Ke5 c4 e4 g3 f6+ Kd7 d6 Kc6 f7 f3 d7 c3 Ke6 g2 d5+ Kc5 d6 f2 Ne2 g1Q Nc7 c2 Nd2 Nf6 Qe1 Ba6 Ng3 Qg2 Rg1 Ng8 Bc4 Rc8 Na8 Nf6 Ngf1 Qb6 d8N Bb7 Nc6 Nh5 d7 Bd6 f8N Bc7 Ke7 Nf4 Ng6 Rhd8 Qe2 Rb8 Qg4 Rbc8 Qe6 Rb8 e5 Rbc8 Ra4 Qd5 Ne3 f1B Rg5 Bd3 Nef1 Qg2 Nb4 Bbe4 Nc6 Rb8 Kf7 Rb7 Rh5 Rg8 d8R Rg7+ Kf8 Rd7 Kg8 Rb8 Rf8 Rbd8 Ra1 Rd4 Rb1 R8d5 Rff5 Rd7 Bd5 Rb4 Bc4 Ra4 Kf8 Ne2 Nf3 Nf4 Bd2 c1Q Be1 Qe3 N3d2 Qd4 Bg3 Qd5 Re1 Bb1 Re3 Bb8 Rf3 Bc7 Rfg5 Nd3 Rf7 Nf4 Rff5
1N1nb3/7Q/B4KpB/1p5N/BP1B1pBp/2r1PN1P/rb3PkR/R1q1q1n1 b - - 1 3 illegal: No proof kernel
n7/2k5/2pr1q2/1NPnpRNP/Q1RNK2R/BPp1P1Rb/3p4/1BR1qrb1 b - - 0 1 illegal: Other
b2qBNr1/r2r1N2/1p1p2p1/kB1P2PB/3P1R1Q/BK3RRn/rP2p2n/4B3 b - - 0 1 illegal: No proof kernel
R2b2BB/1bp1B2n/n1R1R1p1/1p1P1QPp/PPr4q/2p2N1N/K2Br3/B4k2 b - - 0 1 illegal: Other
RRQ1n3/k3bBB1/2P5/2n3qB/1R1p2bP/K2P1N2/1n1P1N2/B3rrN1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 bxc3 Qe7 c4 Qa3 c5 Qd3 cxd3 Be7 Qc2 Bd6 Qd1 Bf8 h4 Kd8 e4 Kc7 e6 Kb7 b6 a5 c6+ Ka6 h6 g5 b7 f5 e7 d5 e8B a4 e5 f4 e6 g4 h7 f3 e7 a3 Be2 g3 Bb2 d4 Nc3 g2 Bf7 a2 e8N Bd7 Nd6 Ka7 Nce4 Nf6 Nc4 Be7 Ne5 Ne8 Nf2 Rf8 h8B Bg4 Bg7 Nd7 Qb3 Rb8 O-O-O Nc5 Rf1 a1Q+ Kc2 Rd8 Qe6 Rd6 Qd7 Re6 Qc8 Qa3 Ba1 Qa6 Ngh3 g1Q Kb2 Qg3 Re1 Qf4 Rhf1 Qg5 Rb1 Qa5 Ng1 Qd8 Ne4 f2 Nef3 Re5 Rfe1 f1N Nf2 Ne3 Ka3 Nd1 Rb4 Nb2 Bd1 Rf5 Re6 Re5 Rh6 Re1 Rh8 Na6 Bdb3 Nc5 Bh5 Rf4 Bbf7 Rf5 Qe6 Qa8 Qd7 Nc7 Rb8 Ne8 Qc7 Rfe5 Qd7 Rf1 Qc8 Ree1 bxa8R#
1BrRN2K/1k1brP1b/3P1N1r/R2B1b2/Pn1Q3P/2n5/R1BRq3/5N1b b - - 0 1 illegal: No proof kernel
3K1R2/1BrR3r/N1B2P1N/r2q3b/3B3N/1P1RQ1PP/bBn1b1r1/3r3k b - - 0 1 legal: proof: d4 f5 a4 g5 g3 b5 axb5 c5 dxc5 f4 Qd6 g4 Qd5 Bh6 Qd1 f3 e3 Bf4 exf4 h5 Qd3 h4 Qd5 Nc6 Qd1 Nd4 gxh4 g3 h5 g2 Bd2 Nf5 Bc1 Ng3 fxg3 Bb7 Be3 Ba6 Bc1 Bc8 Kd2 Kf7 Kc3 Kf6 Kc4 Kf5 Kd5 Kg4 c4 a5 b6 e5 Kd6 a4 c6 a3 h3+ Kf5 b7 Ke4 b8N f2 c7 a2 c5 Ra3 h6 Nf6 b3 Ra7 f5 Rh7 c6 Nd5 Qe2+ Ne3 Nf3 g1R Na6 Rg2 Nh4 Bb7 Qd2 Nc2 Bb5 f1B c8B Be2 Bb2 Qg5 Kc7 d5+ Bd7 d4 Rd1 d3 Na3 Qg8 Nc4 Qd5 Kd8 Ba8 Qg5 d2 Ne3 Rc7 Ng4 Bb7 Rac1 a1R Qe7 Ra5 Ra1 Rg7 h7 Ba8 h8B Rh7 Nh6 Bb7 Ng6 Kf3 Nh4+ Kf2 Bd3 e4 Bhd4+ e3 f6 Bh5 Bf1 Kg1 Be2+ Kh2 Bf3 e2 Qe3 e1R Ra4 Rf1 Rb4 Bc8 Rb7 Kh1 Be4 Qc4 Be8 Bf5 Bd7 Qd5 Ra7 Rb7 c7 Bfg6 c8R Rc7 Rb1 d1B Rb8 Qc5 Bdc6 Bde2 Rd1 Rg1 Rd3 Rd1 Rab7 Qc4 Rb5 Qf7 Rd5 Qe6 Rd7 Qd5 Bf3 Nb4 Rd2 Bb1 Rd3 Ba2 Ra8 Nc2 Bb7 Qb5 Bfc6 Qd5 Rc8 Rh8+ Ke7 Kh2 Ra8 Kh1 Rf8 Rh7+ Kd8
4bkrQ/K1B1rr2/6NP/n2B2B1/Nn3P1n/1R1R4/qP1P2NB/2r1qR2 b - - 0 1 illegal: Other
1bQRKb2/1R2N3/PnNr1N1p/1B3qR1/1r1PP1Bk/2qq4/3P3B/4B2q b - - 0 1 illegal: No possible last move
1b1rb3/2P3BP/Bb1P1qPQ/3N2pb/nq1R1R1k/R1Rb4/2N5/2K3BN b - - 0 1 illegal: No possible last move, all moves rejected
N2B1n2/p2B2Qr/1R4Br/2B4p/3bn3/KPP2qP1/1r2Pk2/bNR1R1N1 b - - 0 1 legal: proof: f4 b5 g4 f5 a4 c5 axb5 e5 fxe5 Qb6 d4 Qf6 dxc5 Qd8 Bh6 g5 Bg7 f4 Bf6 Bb7 Be7 Be4 Bf6 Bf5 gxf5 g4 Bh4 Qg5 Bf2 g3 Be3 g2 Bc1 Qg3+ hxg3 Be7 Nd2 Bd6 Nb1 Bf8 Kd2 Ke7 Kc3 d5 Kb4 h5 e6 Kf6 c3 Ke5 b3 Ke4 f6 d4 b6 f3 e7 f2 e8B d3 b7 d2 f7 Ke3 Ka3 Nd7 b8R Ngf6 Rb6 Rh6 Qc2 Bd6 f8B Ne4 Bg6 Rh7 Be7 Rah8 Bd8 Nf8 Bb2 Bf4 c6 d1R c7 Rd2 c8N Rh6 Qc1 R8h7 Qd1 Rc2 Qd7 Rd2 Qg7 Bg5 Nf3 g1B Bh3 f1Q Bd7 Kf2 Bc1 Rb2 Be3+ Kg2 Bc5 Bd4 Ng1 Qf3 Rc6 Kf2 Nb6 Bc1 Na8 Qf5 Nf3 Qg4 Re1 Qf4 Ng1 Qf3 Rd6 Rc2+ Kb4 Bb2 Rb6 Rd2 Raa6 Ba1 Ka3 Rc2 Ra4 Be3 Rd4 Rb2 Rdd1 Bd4 Rc1
q2N2b1/2K5/RB3B1b/1P4RP/QBBpp2r/r1N1k1NP/P3prR1/4n3 b - - 0 1 illegal: Other
R6n/2B3P1/Pp1K2B1/R2pN3/1R1q1nP1/3PrpN1/2Q1Rq1k/Nb1bB3 b - - 0 1 legal: proof: f4 e5 fxe5 d5 b4 g5 c4 a5 bxa5 b6 h4 Be6 hxg5 Bb4 a6 Bd6 c5 Ra7 cxd6 Rb7 axb7 Bc8 Kf2 Kd7 Kg3 Ke6 Kf4 h5 e4 c5 g4 f5 a4 h4 a5 h3 a6 h2 g6 c4 d7 c3 g7 c2 Bd3 Nc6 b8B Nd4 Ne2 Rh6 Ra5 Rf6 Ng3 Qc7 Na3 Qc6 Bc7 Qc3 d8R Bd7 Ra8 Ba4 Re1 h1B Re2 Rh6 Bb2 c1Q Nc2 Rh8 Na1 Nh6 Qc2 Nf7 Ba3 Qg1 Bb4 Qc4 Bc3 Rh3 Bb4 Kd7 e6+ Kc6 e7 Nh8 Ke5 f4 e8R Ne6 Bc3 Qf2 Rf8 Kd7 Rfc8 Ke7 Re8+ Kf7 Kd6 Kg6 e5+ Kg5 Bg6 Kh4 d3 Qcd4 Bb4 Bf3 Be1 Bb3 Re4 Ba2 Re7 Bd1 Ree8 Nd8 e6 Bb1 e7 Ne6 Re2 f3 Rec8 Rh2 e8N Kh3 Nf6 Nf4 Nd7 Rh1 Ne5 Kh2 Bd8 Rf1 Rc4 Rg1 Rb4 Rh1 Bc3 Rf1 Bc7 Re1 Rd2 Re4 Re2 Re3 Be1
3B1RnN/kp6/BpP5/1p2Q1pb/bNpKP1R1/1P5B/1RP1R1N1/n6r b - - 0 1 illegal: Other
Kb2B1k1/1r6/1b2Q1qN/1R1r2nP/R1q5/Nb2PnN1/2BP2PB/Rqr1R3 b - - 0 1 illegal: No proof kernel
1B2RK1n/2NqB1Q1/rN5P/q1P2R2/2BNb1rB/PPqrb3/8/b1n3Rk b - - 0 1 illegal: No proof kernel
1q1bBrn1/b2R4/1RN5/2nKRbPr/2PN1NBk/4BPn1/2P1n3/n2BQ3 b - - 0 1 legal: proof: h4 c5 e4 g5 hxg5 f5 exf5 a5 b4 c4 bxa5 c3 dxc3 Bg7 c4 Bf8 Kd2 Kf7 Ke3 d5 Kd4 h5 a4 b5 g4 e6 g6+ Kf6 a6 b4 g7 h4 a7 h3 a5 b3 a6 h2 Be3 b2 Nd2 b1N Be2 Rh5 Ndf3 Nd7 Nh3 Nd2 Qe1 Nc5 Bd1 Be7 Ra5 Rb8 Rg1 h1N a8B Ng3 a7 Qd6 Rb5 Bd8 Rb6 Qf8 Bc6 e5+ Kc3 e4 Kd4 Qe8 a8B Be6 Nf4 Ndb3+ Kc3 Qf8 Nd4 Kg5 f6 Kh4 g5 Bf5 f7 Na1 Be8 Rc8 Nc6 d4+ Kb4 Qd6 f8N d3 N8e6 d2 Ned4 Qb8 Bg4 d1N Rg2 Ne7 g8R Nc3 Rg7 Ng8 Re7 Nce2 Re5 Rc7 Bb7 Rf7 Bc8 Rf8 Bf3 Nc3 Bd1 Nce2 f3 Na6+ Kb5 Nc5 Bd2 e3 Kb4 Be4 Bg4 Bf5 Bc1 Nc3 Rd2 e2 Qf2 e1B Qe2 Bf2 Qe1 Nce2 Rd3 Ne6 Be3 Ng7 Kc5 Ne6+ Kd5 Nc5 Qf1 Be1 Qg1 Bc3 Qe1 Ba5 Rb7 Bab6 Rd7 Ba7 Rb3 Bc7 Rb4 Bd8 Rb6
1N2N1b1/1K1R2B1/rPB3nP/q1Q2r2/3qnB2/R1PP4/q2b1kRN/1R3nn1 b - - 0 1 illegal: No proof kernel
B7/B1R2bb1/P1k1r1q1/2N5/qP3K1Q/1NP1nPRr/R1bq2BB/1N2nb2 b - - 0 1 illegal: No proof kernel
1n1n4/1N2nN1P/2R1NkBK/1nr5/Q3B1qb/P4P1B/1R2bBPq/1R4rq b - - 0 1 illegal: No proof kernel
1R3rbn/2bN1qnP/1R1PkRq1/1N5N/1r3RB1/nP3B2/4P3/1b2KbBQ b - - 0 1 illegal: No proof kernel
2Rb1Nnb/P3BN2/2RBKP1q/1bR1n3/2PB2Q1/bkr2B1N/1q1rP2r/8 b - - 0 1 illegal: No proof kernel
R1N1rb2/1N6/P1R1r2Q/1R2P1B1/2nr4/1KB1PPNB/1n2r1rB/rbqk4 b - - 0 1 illegal: No proof kernel
3Nb3/3q1BR1/3R1B1R/1r1Q2K1/2PbRn2/Pp1P2n1/kr3NPB/1qb1N2n b - - 0 1 illegal: No proof kernel
rqN1q3/3kb1RR/5P1B/B3QPKp/4B2P/rN3NP1/1Bn2R1n/4rb1q b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 g5 cxd5 f5 e4 g4 exf5 g3 Qg4 Qd6 Qxg3 Qd7 Qg7 Qd8 Ke2 a5 Ke3 c5 Kf4 e6 d4 h6 b4 c4 d6 c3 f6 c2 g3 a4 b6 a3 b7 a2 b5 Qe7 b6 Qc7 Bd3 Qd7 Bb2 c1R Be4 Qb5 d7+ Kd8 Nf3 Qa4 Nbd2 Qc6 Nb3 Na6 b8R Qb5 b7 Re1 h4 h5 Rf1 e5+ Kg5 Kc7 d8N+ Be7 Nc6 Kd7 Na7 Nh6 d5 Qb4 d6 Ng4 Qg8 Qb6 Qd5 Nh2 Rc1 a1Q Rc7+ Ke8 Qc5 Nb4 Qa5 Nc2 d7+ Kf7 d8B Ke8 Qc5 Bh3 Nc8 Ra3 Rd7 Qd6 Ba5 Qad1 Ra8 Qb8 Ra7 Rf8 Bc6 e4 Qe5 e3 Be4 e2 Rc7 Qa8 b8B Qd7 Rab7 Qe6 Ba7 Qb8 Be3 Qd5 Rg1 Bf1 Rg2 Qe6 Bec1 Bd8 Rh7 Be7 Nfd4 Rh8 f4 Qf7 f5 Qf8 Bc7 Kd7 Rf2 Qe8 Ba5+ Qc7 Rb4 Qc6 Bd3 Qa8 Kh6 Qh1 Nd6 Qg8 Nf3 Rd1 Qc5 e1Q Rg4 Qb4 Be4 Qd8 Qe5 Re1 Rg7 Qg8 Bg5 Qf7 Be3 Ra8 Nc8 Qb8 Bec1 Qf8 Kg6 Qh8 Bh6 Qe8+ Kg5
2K1R1qn/1n2P2N/r2Q4/5RrR/N2B1PB1/kP3R1q/2P2bbp/1rNB1b2 b - - 0 1 illegal: No proof kernel
2KBq1B1/1NBP1q2/2P3Pn/Rn2nrp1/r1b3k1/1r4R1/1NRN1P2/B2Q2b1 b - - 0 1 illegal: No proof kernel
3rrbN1/QB3N1R/3NrB1r/BR6/R2PnK2/1P4pb/1PnP2qn/2k2N2 b - - 0 1 illegal: Other
6R1/1r1p1NRN/1Bn4P/b2NnKn1/BRbP2PR/1nB2kPQ/1b6/r5q1 b - - 0 1 illegal: No proof kernel
NB2Nq2/3bb2n/k2Bn2P/rN2p2q/2PnPn2/3R2KN/1P4RQ/r2B1R2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 g5 fxg5 c5 a4 c4 axb5 c3 dxc3 Bb7 c4 Ba6 c5 Bc8 Kf2 f5 c4 d5 h4 Kd7 e4 Kc7 c6 Kb6 c7 e5 g6 a5 g7 a4 h6 a3 h5 f4 h7 d4 h6 a2 Qh5 d3 Bd2 f3 Rh3 Ra5 Na3 Be7 Be2 Bd7 Rf1 a1N Kg3 f2 Bd1 Nc2 Bb4 d2 Bd6 Nf6 g8N Qf8 c8N+ Kb7 b6 Nd4 Nb5 Nbc6 Rh2 Nd8 Rg2 Ka6 b7 N8e6 b8B Ra1 Nb6 Ra5 Bb3 d1Q Qh2 Qh5 Na8 Ra1 Nh3 Ra5 Rc1 Ra1 Bd1 f1N+ Kf2 Ne3 Kg3 Ned5 Rb1 Ng4 Nf6 Ndf4 Ne8 Rg8 h8R Nf6+ Bg4 Rg6 Rf1 Nh7 Rg8 Rf6 Bd1 Ra5 Kf2 Rf7 R8g3 Rg7 Rd3 Rg3 Rd2 Rga3 Rd3 Ra1 Kg3
3N4/nK3N2/1NRq3n/2Prpn2/q2R4/BrqPP1QP/N1r5/b1RB1Bk1 b - - 0 1 illegal: No proof kernel
NbBK4/8/1nN1r3/rp1PrQBn/n3PBn1/1P1R3n/1RNPkR1R/6q1 b - - 0 1 illegal: No possible last move, all moves rejected
q2r1q1N/1PnP4/1kq1R2b/p3BN1q/P1NKB1nB/Qq4BP/1R3R2/7b b - - 0 1 legal: proof: f4 d5 e4 h5 exd5 e5 g4 a5 gxh5 b5 c4 e4 cxb5 Ra6 Qc2 Re6 Qd1 Re5 fxe5 Bc5 Qe2 Ba3 Qd1 Bf8 Ke2 Kd7 Ke3 c5 b4 Kc7 a4 f5 d4 g5 h6 c4 h7 g4 h3 c3 e6 g3 b6+ Kb7 b5 g2 e7 c2 e8R Bg7 d6 Qc7 d7 Ne7 d8B Nec6 d5 Ne5 d6 f4+ Kd4 e3 d7 e2 Nf3 e1Q Na3 Qb4+ Nc4 Na6 Bh4 Qc6 Bb2 c1Q Rb1 Qb3 Re6 Bh6 Qd3 Ng4 Rh2 g1Q+ Rf2 Qcd1 Bg2 Rd8 h8N Qh1 Ba1 Nc7 Rbb2 Qb1 Qc3 Qf5 Qb4 Qh5 Qa3 Kb8 b7 Ka7 b8B+ Kb7 Ng1 f3 b6 Ka6 Ne2 Bb7 Ng3 Ba8 Rfc2 f2 Be4 f1Q Rg2 Qf8 Nf5 Qcb5 Rbf2 Bd5 Rb2 Qc6 Rgf2 Qa8 Ne5 Qc1 b7+ Qc6 Nc4 Qg6 Bd3 Bh1 Bb1 Qh5 Be4 Ne8 Bbg3 Nc7 Rbe2 Ka7 Bc3 Ka6 Rb2 Ka7 Bb4 Ka6 Bbd6 Ka7 Bde5 Ka6 Ncd6 Kb6 Nc4+
1QR2bk1/2B2brr/1N1nn2P/3N3B/1r2Rp2/2NBP3/P2P1qp1/K2b1B1R b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 h4 b5 a6 f5 e6 c5 e7 Kf7 e8B+ Kf6 d6 g5 d7 Kg7 h6+ Kh7 h5 b4 a7 b3 Nh3 b2 Nc3 b1B Qb3 c4 Kd1 g4 Ba3 g3 Kc1 g2 Kb2 Nf6 Bd6 Bc2 Re1 Na6 Bc7 Bd1 Qb8 Kg8 Nf4 Rh7 Nfd5 f4 Nb6 Nc5 Ka1 Nfe4 Bg6 Qe7 d8N Qh4 Nc6 Qf2 Nb4 Ne6 N4d5 Nd6 Bd3 Rg7 Bf5 Bd7 Bd3 Be8 h7+ Kh8 Qd8 Rb8 a8B Bf7 Qc8 Rb7 Qb8 Ra7 Bc6 Ra4 Be8 Rb4 e3 Bb3 Rb1 Bd1 Nca4 c3 Rc1 c2 Nac3 Rg6 Rb1 Kg7 h8R c1R Rg8+ Kh7 h6 Rc2 Rb3 Rb2 Ra3 R2b3 Ra5 Ra3 Rc5 Ra7 Rc4 Rb7 Re4 Rg7 Bd7 Be7 Rc8 Bf8 B7b5 Kg8 Bfe2 Rh7 Bh5 Bg6 Bd8 Rbg7 Bc7 Be8 Bf1 Bf7 Bbd3
3b2Rq/k1r3P1/1QRBB3/rPN1n3/b1P5/BbN2N1R/ppP2nB1/n3K3 b - - 0 1 illegal: No possible last move
3Nq3/4qN2/B2r3k/NqRP1K2/1b3P1p/2RNp1Bn/3Q1PP1/2rB1bnR b - - 0 1 legal: proof: h4 d5 c4 g5 hxg5 f5 cxd5 b5 a4 f4 axb5 f3 exf3 Bh3 f4 Bc8 Ke2 Kf7 Ke3 Kg6 Ke4 c5 d4 h5 b4 a5 d6 e5 d7 a4 b6 a3 b5 c4 b7 a2 b6 c3 Ba3 c2 Ne2 c1Q Be7 Nc6 b8R Qc3 b7 Qh3 Nbc3 Rh6 Nc1 Qe8 d8N Qhd7 Nb5 Qd6 d5 Nd4 Qd2 Ne2 Nd3 Ng1 Rc1 a1Q Rc5 Qa5 Rc3 Qf6 Nd6 Qab5 N6f7 Ra1 Ra8 Qe6 b8N Ba6 Nbc6 Rc1 Rc8 Kh7 Bf6 Bb4 Na5 Q6e7 Kf5 e4 R8c5 e3 Be2 Rg6 Bd1 Rh6 Bh8 Rd6 Bf6 Q7f8 Be7 Nf6 g6+ Kg7 Qa2 Nh7 Bh4 Qfe7 Bg3 h4 Qd2 Kg8 g7 Ng5 Ra3 Kh7 g8B+ Kg7 Rac3 N5h3 Bh7 Qb8 Nb2 Bf1 Bg6 Qbb5 Bgh5 Qa6 Bhe2 Qb6 Ba6 Qbb5 Nd3 Kh7 Nfe5 Kh6 Nef7+
1K2N2B/1R2B3/2NPPN2/2np1b2/1NP1rqp1/1k1Q2nq/3R1P2/b2r1BRb b - - 0 1 illegal: No proof kernel
RR1N2N1/3K1pp1/Q1N1n3/1PP1BBN1/5b2/1b2P2R/rP1kqrB1/b1n3q1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 Ke7 Kd3 Ke6 Kd4 Kf5 Kd5 a5 c4 d6 h4 a4 c6 a3 e6 a2 e7 Qa5 e8N Qb4 h6 Qc3 h7 Bb7 c5 Ra7 h5 Nd7 h6 Ra4 Nd2 Kf4 Bg2 Ke3 Nf6 Qc2 Nh3 Ra5 Nb3+ Qd2+ Nd4 Ne5 Qa4 Nd3 Ne6 Ba8 Nd8 Ne7+ Kc4 Ng6 Kd5 Be7 Ng5 Nf8 Ng8 Ne6 Rh5 Ra7 Qa6 Bf6 Rh4 Be5 Rh5 Bf4 Rh3+ Kf2 e3 Qe2 Bd2 Nc1 Bc3 Bb7 Bd4 Ke1 Be5 Bc8 c7 Kd2 Kc6 d5 Kd6 d4 Ke7 Bb7 c8B d3 Kd6 Bd5 Bd7 Nc7 Bf5 Bb3 Kd7 Ra8 Ne7 Ne6 Nec6 Rf8 h8N Rg8 Ng6 Rh8 Rb1 a1B Nge7 Rh7 Ng8 Rh8 h7 Ra7+ Qb7 Ra2 Qc8 Ke1 Qb7 d2 Qa6 d1Q+ Kc8 Nd3 Kd7 Kd2 Rc1 Qg1 Rc4 Nc1 Ra4 Qed1 Qc8 Qc2 Ra8 Qc4 Qa6 Qe2 Nge7 Rf8 h8R Rg8 R8h4 Rh8 Ng8 Rh6 Rb8 Rf6 Rg4 Bg3 Ra4 Bh2 Bg6 Rf2 Bf5 Bf4 Qb7 Bg3 Raa8 Bf4 Qa6
2NRq2n/B2pPr2/k4P2/BRnPb1Q1/3bB2R/K3N1P1/5pr1/1q2rR1N b - - 0 1 illegal: No proof kernel
4R2R/Pb3p2/1pQ2PqP/Rb1q2rN/PbB4N/2n3B1/k1B5/n1rRNK2 b - - 0 1 legal: proof: e4 a5 b4 d5 bxa5 c5 g4 h5 gxh5 Nc6 d4 Nb8 dxc5 d4 Bf4 Bh3 Bc1 Qd5 exd5 Bc8 h4 Kd7 c4 g5 f4 e5 c6+ Kd6 h6 Kc5 f5 Kb4 a6 e4 a7 d3 c7 e3 c5 e2 h5 b6 c6 g4 h7 g3 h6 g2 f6 Bc5 d6 Kc4 d7 Bb4+ Nd2+ Kc3 d8N Ne7 Ndf3 Bb7 c8B Na6 c7 Nd5 Bf5 Nc5 c8R Rg8 h8R Rg5 Bf4 Kb2+ Kf2 d2 Ne1 Rb8 Qa4 d1B Bg3 Nb3 Bc2 Nc3 Ne6 Ra8 Rcg8 Rc8 Ngf3 Rc6 Nh4 g1Q+ Kf3 Qd4 Nf4 Qd5+ Kf2 Rc5 Qc6 Rc4 Rc1 Na1 a4 Ka2 Nh5 Rc5 Re8 Rc4 Nd3 e1Q+ Kg1 Qe7 Ne1 Be2 Rd1 Qee4 Rh2 Bd3 Rf2 Qg6 Rf5 Rc5 Be2 Bb5 Kf1 Nb1 Bcd3 Rc1 Bc2 Nc3 Bed3 Qc4 Rc5 Qd5 Be2 B5a6 Ra5 Bb5 Bc4+
5q1r/PnP1k3/6QP/2B1bbnR/KpRB4/3NpP1R/B6q/N1r1Nn1N b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 e5 Kc3 b5 Kb4 d5 h4 g5 a4 e4 c4 d4 f6 g4 f7+ Ke7 h6 g3 h5 g2 h7 d3 c6 d2 a6 Qd5 a5 Qg5 h6 Qg3 c7 Bb7 c8N+ Kd7+ c5 Bg7 f8N+ Ke8 c6 Qg6 a7 Nd7 c7 Bc6 a6 Be5 Ra5 Qg7 Qg4 d1N Qg6+ Qf7 Ne7 Bg3 Rh3 Ngf6 Na3 Rg8 h8B Be5 Ne6 Bh2 Nf4 Rc8 a8R Rd8 Be3 Kf8 Bc4 Nh7 Nd3 Nc5 Nf5 Be5 Ng3 Nb7 Bb6 Ne3 Nc2 Bd7 Nf3 g1Q Nh1 Ke7 Nfe1 Qh2 f3 Ng5 Na1 Qf8 Ba2 Bf5 a7 Rd6 Rd8 Rc6 Rd4 Rc1 Rc4 Nf1 Kb3 b4 Ka4 e3 Rb5 Bc3 Bhd4 Rh8 Nc5 Bd7 Bg7 Nf7 Ncd3 Be6 Rg5 Bf5 Rgh5 Ng5 Be5 Bd4 Bg7 Bc5 Bb2 Bd6 B2d4 Be5 Bbc5+
2Bn1k2/1pK2n2/r4BNp/1RP1RP1Q/nP1Pnr1R/2b2N2/7q/N2B1bB1 b - - 0 1 illegal: No proof kernel
1qN5/q1BRNKR1/1QR1Rp2/2b2r2/3q1p2/BPPbPP1n/2nN4/5kbB b - - 0 1 illegal: Other
1qqr2rn/1B1R3n/1b2R2n/1RB2p2/QpP1NN2/P1B5/NPrP4/K5kB b - - 0 1 illegal: Other
2r5/B1Ppbp2/3n1kB1/3K2n1/2RP1NNR/2QP1BrN/q3nRrP/R2q4 b - - 0 1 illegal: No proof kernel
1K3N1b/4Pk2/2p2r2/2nR1RBn/1P1QN3/1pqR1B1P/2P1qNq1/rNB2n2 b - - 0 1 illegal: No proof kernel
1n1Bk3/2qpn1nB/2N1N2B/Q6R/2K2PrN/2PPrp1R/1Pr5/3n1RBb b - - 0 1 illegal: No proof kernel
N1R4q/5B2/Q5P1/K1p1B1p1/RN1n3P/1Bq2bPP/r2N2kq/r1R1bqN1 b - - 0 1 illegal: No proof kernel
Nr2qBbQ/1N2R3/P6n/2K1PRp1/1P2p1n1/n2N2b1/4R1Pk/B1n1qR1B b - - 0 1 illegal: Other
k2Q2Nb/1r3nrP/5pR1/1n1p2R1/P5p1/bqR2Br1/1PRP4/B1BK1NN1 b - - 0 1 illegal: Other
1b1qRnb1/k4B2/2n3P1/2KP1r1N/4QRN1/p2qN1p1/B1Pbp1PN/2B3R1 b - - 0 1 illegal: Other
B1B3q1/q1k3pN/1p2PP2/2b2KPr/N1Rp1R2/1PNr1R2/2QqBB2/6rb b - - 0 1 illegal: No proof kernel
2B3n1/p1Rnq2r/Q2rk2P/nK3PB1/np1p4/R2R1R2/P1NPn3/N5BN b - - 0 1 legal: proof: e4 c5 g4 h5 b4 f5 exf5 g6 bxc5 Qb6 g5 Qd8 h3 b6 Bb5 Ba6 Qf3 Bh6 gxh6 g5 Bd3 g4 Qd1 g3 Bf1 Bb7 Bd3 Bf3 Bf1 Bg4 hxg4 Kf7 Rh4 Kf8 Rh1 Ke8 Ke2 Kf7 Kd3 d5 c4 e5 f4 b5 c6 b4 c7 h4 c8R h3 f6 g2 g5 h2 c5 Rh7 c6 Qe7 g6+ Ke6 g7 Na6 f7 Qc7 f8B Qb7 c7 Qb6 Be7 Nf6 g8N Nb8 Qa4 Na6 Na3 Nh5 Bg5 Ng7 Nf6 Nb8 Nd7 Qc5 Qa6+ Nc6 Nc2 Qe7 Rd8 Ne8 c8R Nf6 Rc7 Ng8 Nh3 g1N Bb2 Ne2 Bd4 Nc3 Bg1 Na4 Nf2 Rb8 Bg2 Rb6 Rf1 Na5 Bf3 Rd6 Nc5+ Kf5 Nb3 e4+ Kd4 e3 Nba1 e2 Kd3 Ke6 Bg4+ Kf7 Kd4 e1N Bc8 Nd3 Rdd7 Ne5 Rd8 Nb2 Kc5 Nd7+ Kb5 Na4 Nh3 Rf6 Rf3 Rg6 Nf2 Rd6 Re8 d4 Ra3 Qf6 Ree3 Qe7 Red3 Ke6 Ne4 Qf8 Ng3 Qd8 Bf2 Qf6 Rf1 h1N Bg1 Qf8 Rff3 Qe7 Ne4 Ng3 Nf2 Ne2 Nh1 Qf6 Rdc3 Qf7 Rcd3 Qe7 f5+
n3n1rN/k1BRP1p1/2R5/1p1PBn1p/N1B4P/1P6/b5rB/K2RrQNr b - - 0 1 legal: proof: f4 d5 a4 f5 c4 e5 cxd5 b5 a5 Qd6 g3 Qb6 axb6 Bc5 fxe5 f4 Qc2 f3 Qb3 Be3 Qd1 Bf4 gxf4 Bd7 Na3 Bf5 Nb1 Bc8 h4 Kd8 d4 a5 Kd2 h5 Kc3 c5 e4 f2 b7 Kc7 b3 Kb6 Kb2 a4 d6 c4 e6 Ra7 e5 Ra8 f5 Rh7 d5 Rh8 f6 Ka7 e7 Na6 e8R Rh6 f7 Re6 f8N Rg6 e6 Nf6 d7 Rg2 d8B Nc7 e7 Bf5 Nc3 Bb1 Ng6 Ba2 Bf4 Rb8 Rh8 Na8 Bdc7 Ne8 Rc1 a3+ Ka1 Rd8 Na4 c3 Bfd6 c2 Bc4 f1N Bh2 Ne3 Qf1 Nf5 Rh6 Rc8 Nh8 Rb8 Rd6 Rd8 Rb1 c1R Rd7 Re1 Rc1 Nf6 Bhe5 Rg8 Rh3 Ne8 Rd3 Bb1 Rc2 a2 b8B+ Kb7 Kb2 a1R Rd1 Ba2 Bh2 Ka6 Bce5 Rc1 Bbc7 Ka7 Re2 Rc3 Ka1 Rf3 Rc2 Rh3 Bhf4 Rh1 Bh2 Rg4 Bd3 Rg5 Rc6 Rg2 Bc4
1K2NN1B/2P3P1/P5n1/3q1p1R/Rk1rQ1bp/1B2N2n/1P1pRp1b/B1r2B2 b - - 0 1 illegal: Other
6RQ/1q1pPp2/B2b4/2PP2K1/3ppNB1/n2PRbN1/r5Nb/1k2BNrR b - - 1 2 illegal: Other
r1R2b2/1P3bp1/4kB2/PRR3nB/pbKpqNP1/BN2N2Q/P2p4/4N2r b - - 1 2 illegal: Other
1NNqkr1b/4p1B1/1Qp1bR1r/B1n3PR/pR6/PP4K1/qpP1B1N1/3N4 b - - 1 2 illegal: No proof kernel
1r6/4RpR1/2R2P1P/1q1pn1pP/3BNR2/2Bbn1k1/1rNPQqBp/6NK b - - 1 2 illegal: No proof kernel
1n1R2NR/3NQKpp/1Bk5/3Pb2P/4RN1r/3P2P1/1qB1NnBq/rq3bb1 b - - 0 1 legal: proof: f4 e5 fxe5 d5 a4 b5 axb5 d4 c3 Qd7 cxd4 Qd8 d3 Kd7 Kd2 c5 Kc3 a5 Kc4 f5 Kd5 f4 b4 f3 e4 a4 h4 a3 g3 c4 h5 f2 b6 a2 b7 c3 b5 c2 b6 Na6 b8R Qg5 b7 Qf6 e6+ Kc7 e7 Qf5+ e5 Qg5 e8B Bc5 Bd2 c1B Nh3 Nh6 Ba5+ Bb6 Nc3 Rf8 Qe2 Qd2 e6 Qb2 e7 Rf4 Ba4 Qb1 Bc2 Rg4 Nf4 Be3 e8N+ Kd7 Rg1 Bc7 Bb6 Rh4 Rh1 Ng4 Nf6+ Kd8 Bh3 f1Q Rg1 Qfd1 Re1 Qd2 Bf1 Bf2 Qe6 Bg1 Re4 Qh2 Nce2 Ra7 Ra8 Qb2 b8N Nf2 Bh3 Bd7 Qe7+ Kc8 Bf1 Bh3 Nbd7+ Kb7 Rh8 Be5 Ng8 Bg2 Ke6 Kc6 Kf7 Bh3 Bg2 Qb1 Bh1 Bf1 Bf3 Qb2 Rd1 a1Q Bg2 Qa4 Ra1 Qaa2+ Nd5 Qab1 Ndf4 Ra8 Ra3 Nc5 Ra7 Na6 Rb7 Ra7 Rb8 Ra8 Re8 Nb8 Rd8 Ra1 d5+
1r5q/3R1Q2/1BP1b1Rr/1R1npp1p/Kb2NPNB/N1k2Bnr/4PP2/2b1N3 b - - 0 1 illegal: No proof kernel
1Bk3QR/2qb3n/1bPBrR1N/1rPp1p2/1BRnNP2/2p5/2rP2N1/n2B2K1 b - - 0 1 illegal: No proof kernel
7N/B2P1Kp1/1kn3R1/2rrNP1q/R1QRBRPp/n1bNB1p1/5rbP/5n2 b - - 0 1 illegal: Other
1B1rbN2/2KP4/R4q2/p2N1nRp/P3RP2/bB1pN2b/n1QP2Bk/4r1qB b - - 0 1 illegal: No proof kernel
1B3B1n/NPnpr2q/4n2p/6RP/Q2P4/R3b1PB/1r2NN1p/2kbqNRK b - - 0 1 illegal: Other
1q3q1r/3b1Pk1/2Bp3n/pp2NBR1/1Pr5/1bQ1bK1R/1NPP2N1/n2R1BB1 b - - 0 1 illegal: No proof kernel
K1R2N2/RNqB1R1q/p2Qp3/q1N3P1/k1np1rBr/P2bP3/1B1Pn2B/5b2 b - - 1 3 illegal: No possible last move
3k2bR/2p1n3/Nn3NP1/Q1B1p1nB/2N1RrRp/n1bP1Nr1/1BP1PK2/3q4 b - - 0 1 illegal: No proof kernel
1N1q1r1N/1pbp3b/n1QBp3/1BnBNR2/1P1nN3/2RR1nr1/k1PPP3/5K2 b - - 0 3 illegal: No proof kernel forced: wxLB
R2r3N/Bprrb2Q/1Rpp1PB1/1PPkb1Kp/2NP3R/B2b1qN1/8/1nB5 b - - 0 1 illegal: No proof kernel
nRN2Q1n/1Rb5/1q1p1Nr1/Nr1P1b1p/6pn/p1kBb1PP/P4BNR/K5B1 b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 Qb6 exf5 Qd8 f4 Kf7 d4 Kf6 Kd2 e5 Kc3 b5 Kb2 g5 c4 a5 d5 h5 h3 b4 g3 e4 c6 b3 c7 g4 c5 a4 c6 e3 Na3 e2 Rh2 e1B Ne2 Bh6 Be3 Bb4 Bf2 Ra5 Nc4 Bd6 Rb1 a3+ Ka1 Rb5 Na5 Na6 Qe1 Ne7 Qb4 Ng6 Bg1 Bb7 c8N Qb6 c7 Rg8 Ne7 Bg5 c8N Nh8 Rb2 Rg6 Ng8+ Kg7 Qc5 Nc7 f6+ Kf7 f5 Be3 Rb1 Na8 Nf4 Bc7 Bd3 Ba6 Ng2 Bb7 Qc2 d6 Qf2 Bc6 Qf1 Bd7 Qf4 Kf8 f7 Kg7 f8B+ Kf7 f6 Be6 Bh6 Bf5 Rf1 b2+ Kb1 Ke8 f7+ Kd8 f8R+ Kd7 Kc2 b1N Rd1 Nd2 Rb1 Nf3 Rb2 Qd4 Kb1 Nh4 Ka1 Qb6 Rf7+ Kd8 Bg7 Ke8 Bc3 Kd8 Be1 Ke8 Rd7 Kf8 Rd8+ Kf7 Bef2 Kg7 Nce7 Kf7 Rb8 Kg7 Nc8 Kf7 Nge7 Kf6 Qf3 Ke5 Ng8 Kd4 Nf6 Kc3 Qf4 Bd8 Qh6 Bc7 Qf8 Bh6 Re2 Bc1 Re7 Be3 Rf7 Bd8 Ra7 Bc7 Rab7
5N2/p4Kbb/2N3pR/2RpqBP1/3Pnpp1/2Bn1Pkr/PR2B3/1BN1Qb1r b - - 0 1 illegal: Other
k1brB3/2b1K3/4RP2/1nr1B2N/4bn1B/N1B2B1Q/P2PnPRr/3Q4 b - - 0 1 legal: proof: e4 b5 b4 h5 c4 c5 bxc5 a5 g4 f5 gxh5 d5 exf5 Qb6 cxb6 d4 c5 a4 Qxa4 d3 c6 Bb7 Qd1 Ba6 Bxd3 Bb7 Bf1 Bc8 Ke2 Kd8 Kf3 e5 Kg4 g5 h4 b4 h6 e4 h7 b3 b7 Kc7 h5 b2 h6 e3 Na3 b1B Nh3 e2 Bg2 e1N Rh2 Bd7 Bb2 Ne7 Bc3 Nd3 Bf3 Nc1 Nf4 Nd5 Rg2 Be4 Nh5 Na6 b8B+ Kc8 c7 Kb7 Bf6 Nf4 Bd8 Bd6 c8B+ Kc6 Bf6 Bc7 Be5 Be6 Bd7+ Kb7 Be8 Nce2 Rc1 Bc8 Rc6 Ba5 Bc3 Nc7 Re6 Nb5 Bbe5 Bc7 Bf6 Ra5 Be7 Rg8 h8B Ka8 h7 Rf8 Bhe5 Rh8 Bg6 Rd8 h8Q Ra6 f6 Rc6 Be8 Rc5 Qh7 Beb7 Kf5 g4 Bf8 g3 Bh6 Bd5 Bg5 Bc6 Rh2 g2 Bh4 g1R Rg2 Rh1 Qh6 Rh2 Qh8 Nd5 Kg6 B6b7 Kf7 Ndf4 Ke7 Be4 Qh7 Bd5 Qf5 Be4 Qh3
Q1R5/PBr1Bn1n/3b2rR/BB3r1N/N1P4P/PQ1B3K/3b2n1/4kb2 b - - 0 1 legal: proof: d4 a5 g4 e5 f4 h5 gxh5 f5 fxe5 c5 dxc5 f4 e4 f3 b4 a4 e6 a3 e5 Qa5 bxa5 Kd8 e7+ Kc7 Bxa3 Kc6 e6 Ra7 Bc1 Ra8 Nxf3 Nf6 Ng1 Ng8 Kf2 b5 Kg3 g5 e8B b4 c4 b3 h4 b2 a6 g4 a7 Rh7 e7 Nf6 Kg2 g3 Bg6 d5 e8B+ Nbd7 h6 d4 Bg5 d3 Ne2 d2 Bd3 Bd6 Nbc3 b1R Qb3 d1N Kh3 g2 Nf4 g1B Nh5 Ne3 Na4 Ng2 a3 Bgh2 Rg1 Bhf4 Bfe2 Rc1 Rb1 Bd2 Rf1 Rg7 h7 Rg6 h8B Nh7 Rf8 Rf1 Be7 Rf5 Bc3 Bb7 Bg4 Rc8 Ba5 Rc7 Re1 Ba8 Re6 Bb7 Bf7 Ne5 Rc8 Ba8 Bg8 Nf7 Bd1 Rg7 Rh6 Rg6 B1c2 Kd7 c6+ Ke6 Bd1 Ke5 Bf3 Kd4 Bd1 Rd7 c7 Ke3 Bf3 Kf2 Bc6 Ke1 Bb5 Nh8 Bd5 Nf7 Rh8 Bb7 c8Q Rc7 Qa8 Bc6 Rc8 Bb7 Bf3 Be4 Bc2 Bd3 Bb7 Bf1 Bd3
1nQn4/1R1Nr2q/3pPRQP/1K5B/n1PbN1Rk/q1R3R1/3bP2B/5r2 b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 e5 fxe5 b4 g4 b3 axb3 Ne7 b4 Ng8 b5 Qb6 Qd6 Qc7 Qd1 Qd8 b6 h5 gxh5 a5 b3 a4 Qd3 a3 Qd1 Bb7 Bd2 Bc6 Bc1 Ba4 bxa4 Ra7 Be3 Ra5 Bc1 Ra8 Kd2 Ke7 Kd3 f5 Kc4 g5 h4 a2 e6 Kf6 h6 d6 c6 f4 a5 f3 c7 f2 c8Q g4 a6 g3 a7 g2 b7 Be7 h7 Na6 b8R Qa5 h5 Nc7 h6 Kf5 Bf4 Kg4 Rb7 Qf5 Rh5 Bf6 Nc3 Bd4 Rg5+ Kh4 Qb1 Ne7 Ne4 Rf8 h8R Na6 Bh2 Nc6 Rhg8 Qh7 Kb5 Nd8 c4 Nb8 R8g6 Bc3 Rf6 Bd2 Qd3 Rf7 Rc1 a1Q Rc3 Re7 Qc2 Qa3 Nf3+ Kh3 Ne5+ Kh4 Qd3 g1B Bg2 f1N Nd7 Bd4 Bf3 Ne3 Bh5 Nd5 Qb1 Nb6 Qg1 Na6 Qg2 Rb8 a8R Na4 Ra7 Ra8 Rgg3 Nb8 Ra6 Qa1 Rc6 Ra7 Rc5 Qa3 Rcg5 Rf7 Rfg6 Rf1 Rf6 Ra6 Qf3 Rc6 Qf5 Rc7 Qg6 B4e3 Nb6 Re7 Nd7 Bd4 R5g4#
r1Bn2Q1/k1BR4/3R1PbP/n2q3P/pq2P1N1/3r1Qq1/1N6/KR2Rq1R b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 h5 axb5 e5 g4 f5 gxh5 Bc5 e4 Be3 exf5 e4 Ke2 Bf4 Ke1 e3 Ke2 Bg5 Kd3 e2 Kc3 Be3 dxe3 Nf6 Kd2 Ng8 Kc2 Kd7 b4 e1Q Kb2 g5 h4 c5 f4 Kc7 e4 Kb6 d6 a5 h6 g4 d7 g3 f6 a4 h5 g2 f7 c4 f8R Rh7 f5 Qg3 f6 Na6 Rf7 Qf2+ Nd2 Ka7 b6+ Kb8 b5 Qh4 b7 Qg4 Qf3 Ne7 Nh3 g1Q Nf2 Nc5 Bh3 Q4g3 Ng4 Ka7 b8R c3+ Ka2 c2 Nc4 Qg8 d8R Nb7 Rd6 Qf1 Bf4 c1Q Nb2 Qd2 Re1 Nd8 Ka1 Bf5 Be5 Bg6 b6+ Ka6 b7+ Nec6 Rfd7 Qb4 Rd4 Qd5 Bc7 Ka7 Rdd1 Nf7 Rbd8 Rh8 Rb1 Na5 Rd6 Re8 R8d7 Nd8 Qb3 Ndc6 Qf3 Red8 b8Q+ Ka6 Qc8+ Ka7 Rh7 Rd7 Qg8 Nd8 Ne3 Ndc6 Re6 Qf5 Rf7 Rd3 Rd6 Qfg5 Bc8 Qd5 Rfd7 Nd8 Ng4
3RBnR1/1n1Nkpb1/1p4b1/4PN2/3P1PN1/2nNK1QN/2Q1PB2/1r2r1r1 b - - 0 1 legal: proof: b4 e5 b5 d5 b6 d4 bxa7 d3 cxd3 e4 d4 Nc6 d3 Nb8 dxe4 h5 g4 b6 gxh5 Be6 a4 Bf5 a5 Qd5 a6 Qb7 axb7 Bc8 Kd2 g5 f4 c5 h4 g4 h6 c4 h5 g3 h7 g2 h6 c3+ Ke3 c2 Nd2 Bh3 Nb3 Bg7 Nc5 Na6 b8N Bg4 Nh3 g1R Nd3 Be5 Bg2 Bc8 Nd7 Rf1 Rg1 Rb8 a8Q Nc5 Qa3 Ra8 Qb3 Rb8 Ra8 Ne7 Qe1 Nc6 Qg3 Rg8 h8N Na5 h7 Nab7 Ng6 Re1 h8N Bg7 Nh4 Ne6 N8g6 Nf8 Nge5 Ke7 Ng4 Rh8 Bd2 c1N e5 Na2 Qc2 Nc3 Bc6 Rb1 Be1 Rg8 Ra2 Ra8 Bf2 Re1 Bb5 Ra3 Ra1 Rb3 Ra8 Rbb1 Rb8 Na5 Ra8 Bb7 Rd8 Be4 N7c5 Nb7 Be8 Bh7 Nd7 Bg6 Nf5+ Ke6 Ra8 Rh8 Rd8 Bh6 Ngf6 Bh5 Qh2 Rg8 Rg4 Rg5 Rh4 Rgg1 Ng4 Bg7 Qg3 Bg6 Rh8 Rb5 Nd6 Ke7 Rg8 Rbb1 Nf5+
1B1N1k1B/2rb1r2/2Q5/3RRp2/PQbB2PP/NB3PBK/1r2rp2/2n2n2 b - - 0 1 illegal: Other
5kbQ/2pbQB1q/1P1Q1Bn1/P1K1bR2/8/P2P2Rp/1qN4N/1r3QQq b - - 0 1 illegal: No possible last move, all moves rejected
5BkN/6PB/1b3K2/P2qRQ1p/PnQb3Q/5R2/pb1Pb1N1/1br1Q1Q1 b - - 0 1 illegal: No proof kernel
n1Q1NnR1/nbP2P1N/1p2b1q1/2NkPp1n/PB3Q2/4b2K/1NN1BR2/8 b - - 0 1 legal: proof: e4 a5 d4 f5 g4 h5 gxh5 c5 dxc5 a4 e5 a3 bxa3 Rh7 a4 Rh6 a5 Rh8 f4 g5 Qf3 Ra6 Qd5 Rf6 exf6 e5 Qd3 e4 Qd1 Rh7 Bh3 Re7 Bf1 Re5 fxe5 Qc7 Bb2 Qb6 Bc1 Qd8 Kf2 Kf7 Kg2 Ke6 h4 d5 a4 e3 c4 d4 c6 d3 a6 b6 a7 d2 a8N g4 c5 e2 c7 g3 f7 e1N+ Kh3 g2 c6 Nc2 h6 Bg7 h5 Nf6 h7 Qd3+ Qf3 d1B h8Q Qd4 h6 Qd7 h7 Bb7 c8N Qd2 Ba3 Ne4 Be2 Qd4 Nd6 Qc5 Bb4 Qc4 Rh2 Kd5 Qc8 Na3 h8N Nd7 Nd2 Bb3 Qf4 Nef6 Ne8 Bh6 Ngf3 Nf8 Rg1 Nb5 Ng6 Na7 Nd4 Nh5 Nc2 Qc5 Nc4 Qd6 Nb2 Qf6 Nh4 Qg6 Nf3 Bc4 Ng5 Ba2 Qg3 Bb3 Nh7 Be3 Qf4 Bc4 Rf1 Ba2 Rf2 g1N+ Kh4 Bc4 Rhg2 Nf3+ Kh3 Nd4 Rg1 Ndb5 Rg3 Qf6 Rg8 Qe6 Qg5 Qg6 Nac7+ Ke4 Qh6 Be6 Na6 Kd5 Qf4 Nc7 Nc5 Na8 c7
BN1r4/K1B3p1/1rRPn1pp/2Q1B2B/4N2Q/P1PRn2P/1nb1q3/2k3B1 b - - 0 1 illegal: Other
1rB2BB1/1N3Rpk/b1P1P2B/1Q1P3R/2pB1r2/2pq1QK1/N1b1P2n/1b6 b - - 0 1 illegal: Other
7q/K5PB/1Bk1bpr1/2Q3R1/PrNpb2B/B1p2PqN/1BP3n1/1Q2R3 b - - 0 1 legal: proof: h4 g5 hxg5 c5 d4 c4 Kd2 Bg7 Ke1 Be5 Qd3 Bd6 Qd1 Bc5 dxc5 Qc7 Rh2 Qb6 Rh1 Qd8 e4 d5 Nc3 b6 cxb6 d4 Nb5 Na6 Nxa7 Nc7 Bd3 Rb8 Bf1 Nd5 exd5 Ra8 Kd2 Kd7 g4 h5 b4 e5 a4 e4 d6 h4 b7 f6 b8B h3 f3 h2 b5 Bb7 b6 Qc8 g6 Rh6 g5 Ne7 g7 Rh8 g8Q Qc6 g6 Rh4 g7 Rg4 Nc8 Ng6 Qf8 Nh8 Bd3 Rg6 Nh3 Nf7 Re1 h1B Bb2 Nd8 Qb1 Ba6 b7 Qc5 Nb6+ Kc6 d7 Ne6 d8B Qh5 Bg3 Nf4 b8B Bg2 Bd6 Bb7 Bda3 Qh8 Bh4 Rb8 Rg1 Bf1 Rg5 Ng2 Qe7 Bc8 Qb4 Be6 Qc5+ Kb7 Nd7 Be2 Ne5 Bf1 Bb6 c3+ Kd1 e3 Nc4 Rc8 Bf5 Bd3 Be4+ Rc6 Bf5 Be4 Ke2 Rh6 Bh7 Rg6 Qf1 Rc8 Re1 Rb8 Qg1 Bc6 Kd3 e2 Qe3 Bcd5 Qc1 Bc6 Qb1 Bcd5 Rd1 e1Q Rc1 Qg3 Rd1 Bg4 Re1 Bde6 Ke4 Bef5+ Kd5 Bd3 Qf8 Be6+ Kc5 Bdf5 Kb5 Be4 Ka5 Kc6 Ka6 B6d5 Ka7 Be6 Bd8 Rb3 Bb6 Rb4 Qc5+
Q3k2q/1b4Qq/6P1/5bKn/rQ5R/2QPB1bP/3n1PRN/1nQB1qNr b - - 0 1 illegal: No proof kernel
N2Q1r2/qRR2bQN/BrqkB1PP/B1b3Pn/3b2P1/B3rq1B/7K/7n b - - 0 1 illegal: No proof kernel
1b3r1N/q1b3nK/1n1qP3/1PkrB3/rQ1R3N/4RPQB/2P1bB2/3B2nB b - - 0 1 illegal: No proof kernel
3q1q2/PB1kN1N1/1P3bbB/1nQB1nP1/3P3b/Rn5q/B4r1R/B1rQ2K1 b - - 0 1 illegal: No proof kernel
b1rNkN2/2QNn3/N4P1r/4R3/3b1b1R/1Pb3Pq/1nPNr1BQ/B5bK b - - 0 1 illegal: No proof kernel
2B1Q1r1/bNn5/PQ2bP1B/r1P1qnQQ/bQP4N/KR3r2/3b1k2/4bR2 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb3 Ke5 h4 Ke4 a4 d5 a6 e5 a7 b5 h6 g5 a5 g4 f6 d4 h7 g3 f7 d3 h5 g2 h6 b4 Nf3 g1B Rh3 d2 Ba6 Qg5 Nc3+ Kf4 Ne4 Be7 Nd6 e4 Nb7 e3 Nh4 Qe5 Qh5 d1B f8Q+ Ke4 Rb1 e2 Qg5 e1B Qd8 Bcg4 Qb6 Be6+ Ka4 b3 Ka3 b2 Rb3 Bd8 c4 Ne7 f4 Be3 f5 Rg8 h8Q B3d2 f6 Nf5 Ra1 b1R h7 Kd4 Qb4 Bb6 Qhg7 Rb2 h8Q Rc2 Qhh6 Rc3 Qc7 Rf3 Qhh5 Bc2 Rc3 Ba4 Rb3 Nc6 Rb1 Nce7 Qc6 Nd5 Qcb5 Rac8 a8Q Ba7 Qb6 Nc7 Qb8 Rcf8 Qbe8 Rf7 Nd8 Rd7 Bc8 Ke4 Nb7 Rdd3 Qg2 Ke3 Qgg5+ Kf2 a6 Rd6 Q6b5 Rb6 Q5a5 Rb5 Qb6 Ra5 Qg7 Bc3 Bh6 Bed2 Qgg5 Be1 Ra1 Bed2 Rg1 Be1 Rh1 Bcd2 Rf1+
2B2B2/3rPbn1/3rbbnP/K1N1N3/QRQPB2r/P1R3r1/2BBqk2/2q5 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nf6 d4 Ng8 d5 Rh6 Na3 Rh7 Nb1 Rh8 h4 Ke7 d4 b5 Kd2 f5 Kc3 c5 e4 g5 a3 g4 a6 g3 d6+ Ke6 d7 b4+ Kb3 f4 Ka4 g2 h6 b3 a7 c4 h5 b2 h7 f3 Nc3 b1R Bd3 f2 Bc2 f1B Nf3 g1R Bd2 Rb6 Ka5 Be7 Na4 c3 Rc1 Qe8 d8Q Nd7 Qc7 Rg3 Rh3 Nf8 Rb1 Ng6 Rb4 Rab8 a8B Rd6 Qc5 Nf6 Qc4+ Nd5 Bb7 Bf6 Bc6 Rb7 Nc5+ Ke7 e6 Ndf4 e5 Rbd7 Bb7 Bg2 Bce4 c2 Ba6 c1Q Qa4 Nd5 Bb7 Ne3 Bc2 Nf5 Bbe4 Ng7 h6 Rg8 h8B Rg4 Ne1 Rh4 Rc3 Bf3 Ned3 Bh5 Rb5 Nf4 Rb4 Bf7 Ne1 Ng6 Nf3 Kd8 e7+ Kc7 e6 Bb7 Qd3 Bd5 Qb3 Kc6 Qdc4 Qc8 e8B Qd1 e7 Qe2 Bf5 Bde6 Ka4 Nh5 Bg7 Qc7 Bf8 Ng7 Qb1 Qc8 Qd1 Qc7 Qa6+ Kd5 Ne5 Qc8 Ka5 Qc6 Bb1 Qc8 Qa4 Qc6 Bfc2 Qc8 Ncd3 Ke4 Qc4 Qc6 Be1 Ke3 Nc5+ Qd3 Bd2+ Kf2 Qcb5 Qh1 Qc4 Qe2 Be4 Qc1 Bbc2 Rd8 B8c6 R8d7 Bb7 Nf5 Qd3 Nh8 Kb5 Rg3 Ka5 Ng7 Bc8 Ng6 Qc4
1bk5/3Nb3/2Rb1R1P/3bBnP1/1Q3RP1/R4B1Q/N1rbP1q1/R2K1brn b - - 0 1 illegal: No proof kernel
nb4Rq/k5qp/R1RqPRNP/b2B1R1K/r7/2Q2P1P/3Br3/1n3NnQ b - - 0 1 illegal: No proof kernel
4r3/1P2Qbp1/3P2N1/2R1P1Br/P1n3q1/QN2Q1bk/B2rQ2n/2q1RQnK b - - 0 1 illegal: No proof kernel
b1K5/PB2r2Q/PBB1QP2/1qB1R1qn/1rnP1kR1/pN6/3b3b/2Bq1N2 b - - 0 1 illegal: No proof kernel
1N1kq1n1/2N5/PnPBb3/4N2B/1N2nR2/r1P3R1/Qr1Pp2r/1nNQK1b1 b - - 0 1 illegal: No proof kernel
1r3Q1N/1bRn2PB/8/1Q2B1bP/3RN1q1/2np1b2/Nkb1NKPP/rn5N b - - 0 1 illegal: No proof kernel
r2Q2Q1/PnR1p3/B6P/kP2QPrn/4N1Qb/1b1nBR1n/3qN1K1/1Qr5 b - - 0 1 illegal: No proof kernel
n1k2n2/3Qrq2/N1b5/2PbQPp1/2R1RBPP/1Kn5/3B1BB1/rnB1q2N b - - 0 1 illegal: No proof kernel
1qn2N2/rq5P/1pr1q2R/RP1R2K1/NR5Q/1Pb2qB1/bqk2RQP/3B4 b - - 0 1 legal: proof: c4 d5 cxd5 f5 e4 h5 exf5 h4 b4 h3 gxh3 Nc6 h4 Nd4 h5 Nb3 axb3 Rh7 Ra2 Rh6 Ra1 Rh8 Ke2 Kf7 Ke3 Kf6 Kf4 g5+ Kg4 Ke5 f4+ Kd4 b5 c5 d6 e5 d7 a5 f6 e4 f5 a4 h6 a3 h7 c4 f7 c3 f6 a2 Ne2+ Kd3 Rg1 c2 Nbc3 b6 Na4 e3 Nd4+ e2 Ne6 Bb4 f8R Bc3 f7 Ne7 Kh5 g4 Kg5 Qc7 d8R+ Qd7 Rg8 g3 f8R g2 Rg6 Ra7 Rf2 Rg8 Bb2 c1Q Nf8 Rh8 Ba3 Qb2 Bd6 Qb7 Rh6 Bf5 Qc1 Nc8 Bg3+ Nd6 Qe1 Kc2 d4 Nc8 d5 Qb8 d6 Rg8+ Kh4 Rg6 d7 Rc6 Kg5 Bg6 Re8 Be4 d8Q Bf5 Rh1 g1Q Re4 Qg2 Qd5 Qf3 Rb4 Be4 Rd1 a1Q Qg8 Qb7 Rd5 Qd1 Rg1 Qd4 Qg6 Bd3 Qe4 Qh8 Qh4 Bf5 Qa1 Qe5 Qa2 Qeb8 Rgg2 Kc1 Rg1 e1Q Be2 Kc2 Rh1 Qf1 Rg1 Qh3 Rh1 Bd3 Ra1 Qe6 Qb1+ Kd2 Qh1 Kc2 Qg2 Kd2 Rf5 Bb1 Rd5+ Kc1 Nc5 Kc2 Ra5 Ba2 Na4 Qbd7 Re5 Qdc7 Rd5 Qcb7 Bd1+
B1rBb3/1q5n/p1P1QNRr/P1R1K3/1k3n2/NqB2rQ1/P1P3r1/2r2B1B b - - 0 1 legal: proof: e4 f5 exf5 g5 d4 c5 dxc5 g4 b4 g3 hxg3 Bh6 g4 Bf4 g5 Bc7 Ba3 Kf7 Bc1 Ba5 bxa5 Ke8 Kd2 e5 Kc3 Ke7 f4 h5 g4 b5 c6 d5 f6+ Kd6 f5 Kc5 g6 h4 g5 a6 g7 e4 f7 e3 f8Q+ Qe7 f6 h3 f7 e2 g6 e1R Qe8 h2 f8B Rh6 Qd3 Bd7 Ne2 Nf6 g8B Nh5 g7 Nf4 Bb2 Rc1 Ng3 Rg6 Nh5 Rg2 Qc8 Be8 Qg3 Nd7 Be6 Nf6 g8B Nh7 Nf6 Rb8 Bg7 Qb7 Na3 Ra8 Rg1 h1R Rb1 Rh6 Bg4 Rb8 Qe6 Rc8 Bh3 Ng6 Kd3 b4 Bc3 d4 Ke4 Nf4 Ke5 b3 Bf7 b2 Bg6 d3 Be4 Rf2 Bh1 d2 Bg4 d1R Bf8+ Rd6 Be7 Rf3 Bd8 Rcd1 Bf5 R1d2 Re1 b1Q Re2 R6d3 Rh2 Q1b2 Rh5 Rg2 Qb3 Rh2 Qh3 Rd1 Rg6 Qf7 Qg3 Rc7 Bc8 Rg2 Bb7 Rc8 Ba8 Qb7 Qe6 Q2b3 Kf5 Rc1 Bd4+ Kb4 Bc3+ Ka4 Ke4 Bf7 Rc5 Be8 Ba1 Kb4 Ke5 Qa4 Bd4 Qb3 Bc3+
2B3r1/2B5/1Rq1nr2/2Q1BNnq/4Pnp1/q1PB1QPP/k2n3N/2bK1RB1 b - - 0 1 illegal: No proof kernel
2r3N1/RK1k1BBq/4P2N/Q2PnQq1/3n4/1Pn1p3/1Rb1PBB1/4rnBq b - - 0 1 illegal: No possible last move
6kn/1BBPQPNN/4P3/Kp2B2R/QP1rbBnr/R1B3r1/8/n4rnq b - - 0 1 illegal: No possible last move, all moves rejected
1BR1kqn1/p4rB1/1PB3n1/4P1Bq/Kb2bPPp/NR5N/1Q5Q/n2r3B b - - 0 1 illegal: No possible last move
r1bB1R2/P1pn3P/1N4bp/1P1q1B1P/BB1Q1QK1/8/k1R1n1n1/b1B1qN2 b - - 0 1 illegal: No proof kernel
1Q4n1/Qr3q1Q/r1q1P1P1/Rn1B3b/K1N1Qp1B/3qnP2/1P4Rp/Q2k3N b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 g4 c3 Bb4 cxb4 g3 hxg3 Na6 g4 Nb8 g5 Qf6 Ra5 Qe7 Ra1 Qd8 Kd2 Ke7 Kc2 Ke6 Kb3 Kf5 g4+ Ke4 b6 h5 e6 c5 g6 d5 b7 f5 g7 a5 e7 f4 g5 h4 b5 c4+ Ka3 c3 g6 h3 b6 d4 Be3 d3 Rh2 c2 Rg2 c1Q Ka4 h2 Nh3 d2 Na3 Ra6 Nc4 Nc6 b8Q Qd3 b7 Rh7 Qa7 Nd4 b8Q Nb5 e8Q+ Be6 Qe1 d1N Bd2 Ne3 f3+ Kd5 Qd1 Bg4 Be1 Bh5 Bh4 Qc3 Qee7 Qf6 Nf2 Qf7 Qab7+ Kd4 Nh1 Rc6 Qc1 Ra6 Qee4+ Kc5 Ne5+ Nc4 e3 Qe8 Ra2 Qd2 Qd3 Nf6 g8Q Qc6 e4 Qe2 Qcb1 Ne3 Kb3 Rg7 Qdc2+ Kd4 Q7c7 a4+ Kb4 a3 Qh7 Ng8 Qf7 Qd1 Bc4 Qe2 Ra1 a2 Qfb7 Rf7 Q7a8 Rb7 Qaa7+ Qb6 Qcc1 Qc2 Be6 Qc7 Nc4 Qf7 e5 Qc5+ Kb3 Qb6 Rc2 Kd3 Bd5 Qc5 e6 Qc6 Rc3+ Ke2 Qe4 Qfd7 Kb4 Qg7 Ra3 Qf7 Rb1 a1Q Ra5 Qa2 Ra1 Qb1 Ka4 Qd3 Qb1 Qfc7 Qa2 Qg7 Rg1 Qf7 Rg2+ Kd1 Qa1+
1N2b3/1n2QR1K/1B2Q3/qP2nn2/n1r1PQ2/q2B1Npk/P3p1P1/Q4RQr b - - 0 1 illegal: Other
Rb6/nn1P2PK/6N1/1pN3PN/NP2nNk1/3B2B1/pQ1nrqr1/qQ4R1 b - - 0 1 legal: proof: e4 d5 c4 f5 exf5 g5 cxd5 g4 a4 g3 a5 b6 a6 Bb7 axb7 Qc8 hxg3 Nc6 g4 Nb8 g5 Qd8 Ke2 Kd7 Kd3 h5 Ke4 a5 d4 e5 g4 c5 f4 h4 g6 h3 d6 h2 g5 c4 d5 c3 f6 c2 Kf5 e4 g7 a4 Kg6 e3 f7 e2 f5 e1N f6 a3 Bd3 Rh5 Nc3 Nf3 Nge2 Nd2 Rg1 h1Q Na4 Rh2 Nf4 Rg2 Nh5 Nc6 b8Q Na7 Kh7 b5 b4 Qb6 Qe1 Nc4 Bf4 c1N Bg3 Nb3 Qb1 Qf2 Qb6 Nca5 Qd4 Nb7 Qdb2 Nd2 Ra2 Kd8 d7 Bd6 f8N Bb8 f7 Ke7 d8N Nf6+ Kh6 Nb3 Nde6 Ne4 Nf4 Nbd2 N8e6 Kd7 f8N+ Kd6 Nd4 Ke5 Nb3+ Kf5 d6 Kg4 d7 Bd6 Nac5 Re8 Kh7 Bb8 N8g6 Re7 Na4 Re5 Ra1 a2 Nbc5 Ned6 Rc1 Re2 Rc4 Qd1 Re4 Qde1 Re8 N6e4 Rc8 Bd6 Ra8 Bb8 Qb3 Qc1 Q1b2 Qc3 Rg1 Qc1 Q3c2 Qa1 Qcb1
Q3N2K/1rr1B3/4q1B1/pN6/1P1pn3/1rBRP3/1nqPP1Bb/Rr2k1QB b - - 0 1 legal: proof: c4 e5 h4 g5 hxg5 b5 cxb5 e4 b4 e3 fxe3 Bb7 Nf3 Bd5 Ng1 Bb3 axb3 Qf6 Bb2 Qe7 Bc1 Qd8 Rh5 Ke7 Bb2 Bg7 Kf2 Bf8 Kf3 Na6 Kg4 Nf6+ Kf5 d5 g4 c5 Bg2 c4 b6 Bh6 b5 d4 b4 c3 g6 c2 b7 c1Q b8Q Qd6 g5 Nc5 b6 a5 b7 Na4 g7 Ra7 g6 Rc8 g8B Rc7 g7 Bf4 Nf3 h6 Qe1 Ne4 Nc3 Qc2 Nh2 f6 Kg6 Qe6 Bf7 f5+ Kh7 Kf6 Rg5 h5 Nb5 h4 Bg6 h3 Qa8 Bg3 Qb1 f4 Kh8 f3 Rc5 f2 Rc3 Kg5 Rd3 Kh4 Ng4 f1R Bc3 h2 Nf6 h1R Ne8 Bh2 Qc1 Kg3 b8B Kf2 Qb1 Rc5 Bd6 Rcc7 Be7 Rab7 Qe1+ Kg1 Qg3 Re1 Qg5 Kf2 Qg4 Rc1 Bh3 Rhd1 Bf1 Ke1 Qg5 Rb1 Qg1 Rb3 Ra3 Qc4 Ra1 Rdb1 g8B Nec5 Bd5 Nb2 Bc6 Qe6 Bh1 Ne4 Bfg2+
N1qqRrQ1/kp2p1N1/B4Q2/Pq2R2q/1n1b2b1/NPN3P1/1P5N/B3K2n b - - 0 1 illegal: Other
K7/1B4QR/b1PBRPr1/1kBn1q2/n1P1Qppp/r1r1P3/6N1/b1BB1N2 b - - 0 1 illegal: No possible last move, all moves rejected
2rN1N2/1p2n1R1/qNP5/2RPP1Qb/1B1K1b2/nq1Q4/1kpNBPp1/2N3r1 b - - 0 1 illegal: No proof kernel
4B3/bNRQ1nr1/1k2r1PP/qn1p4/q5Bp/NB1PP2n/p2B4/2B2KRQ b - - 0 1 illegal: No proof kernel
RnKN1N2/2b3pr/P5bQ/2nbBQ1p/4r3/2Q1P1P1/PQ1Q1rp1/3k1B1R b - - 0 1 illegal: Other
1Br1k2n/N2R4/b3NR2/Q1Q5/1r2R1P1/Pp1BRbK1/1PP1Rp1p/b1b2q2 b - - 0 1 illegal: No proof kernel
3R4/Pp1kpbR1/1n1N4/q1p1P2R/1PP2q2/Rr2R2K/Q2Qq3/N1n1nBB1 b - - 0 3 legal: proof: h4 a5 d4 c5 f4 g5 g4 a4 h5 a3 h6 Ra5 d5 Bg7 hxg7 Ra6 fxg5 Ra4 g6 Ra6 g5 Rc6 dxc6 Qc7 Nxa3 Qb6 Nb1 Qd8 Kf2 h5 Kg2 f5 e4 d5 b4 f4 a4 d4 a5 d3 e5 d2 c7 h4 a6 Bf5 c8R Nd7 a7 Be4+ Kh3 f3 Ra3 f2 Nc3 Nb6 Nge2 Nh6 g8Q+ Kd7 g7 Nf5 g6 Bd5 Nd4 Ne3 Ncb5 Bf7 Nd6 Ng2 Nb3 Ne1 Na1 Rh5 Qe2 d1Q Qd2 Qe2 Bb2 Rg5 Bd4 Rg4 Be3 Rd4 c4 Rd3 Qf8 Rc3 g8R Rb3 g7 Qc7 Rh8 Qd8 g8R Qc7 Kh2 h3 Rg7 Qd8 Kg3 h2 Rh5 Qc7 Rg1 h1N+ Kh3 Ng3 Qh8 Qd8 Qh7 Qc7 Qhc2 Qd8 Qa2 Qc7 Bg2 f1Q Rf8 Qf4 Bf1 Nh1 R1g3 Nf2+ Kh2 Nfd3+ Kh3 Nc1 Bg1 Nc8 Rc3 Qa5 Re3 Nb6 Rd8+
2R2B2/3BK1B1/1NPBp1QQ/1P2R2P/nP2b3/n2kbp2/1qprrp1N/B7 b - - 0 1 illegal: Other
2R2k1q/p2Qp3/1PnP1N1b/2B2p2/R1R2rBR/5rbK/R1P2P1p/Q1N4n b - - 0 1 illegal: No proof kernel
2bn2B1/Qppp2b1/8/pkP2PQn/3qN3/rP1n4/R1K1NR1P/NNB4N b - - 0 2 illegal: No proof kernel
2QNq3/Q1nn1Q2/P2B2BN/Kp2RR2/PP1Qb2Q/1qprP1p1/3kp3/4b3 b - - 0 1 illegal: No proof kernel
7r/Pb1BRbp1/2QQR1r1/2p3b1/rqR5/2PR2Pn/kPn2BKN/Nn5R b - - 0 1 illegal: No proof kernel
3kR1n1/P3nQR1/4B1N1/1KQ3Q1/nbPB3N/ppqq4/PPr4Q/Qbb3r1 b - - 0 1 illegal: No possible last move, all moves rejected
1nR2b1R/5RB1/4bKQ1/Pn1k4/1r3N1r/RN1qpb1p/b2QP1PP/1Bq3R1 b - - 0 1 illegal: Other
1n1R1r1k/1Rp1n2R/4r1rp/3Q1pBP/bn1PQP1K/1qP1R3/6Nb/4R1NB b - - 1 3 legal: proof: e4 d5 exd5 b5 a4 f5 axb5 Bb7 g4 Qd6 g5 Qf6 gxf6 Bc8 h4 Kf7 b4 g5 b6 e5 b7 a5 c3 g4 d6 e4 b5 e3 d7 e2 d8R a4 b6 a3 Bg2 a2 Na3 g3 Nc2 Nh6 Ne3 Kg8 f7+ Kg7 d4 Be6 Qc2 Ra6 Qe4 Bd6 f8R Bd7 Rfe8 Ng8 Rh3 Ba4 Bh1 Be5 Ng2 Ne7 Bg5 Rf8 Rb1 a1N f3 Nd7 b8Q Kh8 b7 Rg6 Qa8 Nb8 Qa5 Bf4 Qad5 h6 h5 Bd6 Rd7 Be5 Red8 Bf4 Ne3 g2 Kf2 Bd6 Re1 Bh2 f4 Nc2 Kf3 Nb4 Rg3 N8a6 b8R Re6 Rb7 Nb8 Nh3 g1R Ng2 Bc6 Kf2 Bb5 Re3 Ba4 Nh4 Rg4 Ng1 Rg3 Ng2 Rg4 Rf1 e1Q+ Kf3 Qb1 Rfe1 Nec6 Re7 Qb3 Rh7+ Kg8 Bh4 Rg6 Bg5 Ne7 Nh3 Bg1 Kg3 Bh2+ Kh4 Nc8 Ng1 Ne7 Rf7 Kh8 Rh7+
Q1b2KN1/5R2/1BPn1pB1/p1Rr4/PBN1r3/pP1qB2k/n3rPBn/4b1Q1 b - - 0 1 illegal: Other
B1r5/PpN1n3/1b4b1/1Qp1n2p/1P3r1B/RPr3RB/N1q3BP/1BnQk2K b - - 0 1 illegal: No proof kernel
q7/1P6/p2RBRp1/P3qR1R/n3pP2/kR1N3q/1r1b1KPQ/nQBNrb2 b - - 0 1 illegal: No proof kernel
1K1Q2rB/1nN3r1/1kp4B/3bPR2/2q3pp/2QRB2r/1qPb1BPP/1n3N1B b - - 2 3 illegal: Other
B2K4/N2p2pq/2b1pR1Q/5Rbr/2n1Q2k/bnBRNPP1/2RPP3/1r1qR3 b - - 1 3 illegal: No possible last move
4b1Bb/2rP3B/Bpbp2p1/r2nQ3/1n6/BP2P1PK/Q1N1Rq2/1bNRBk2 b - - 0 1 illegal: No proof kernel
6Nr/r2p2qP/5Rk1/1pBNQ3/qP1P2pr/1Nb1K1PB/1Q1n4/RrNbN3 b - - 0 1 illegal: No proof kernel
1bR1nQQK/B6b/2B2Nr1/1pBpn1pk/2bN3r/PP1P2B1/1P2p3/2RBq3 b - - 0 1 illegal: No proof kernel
1B2b1BQ/3R2NQ/2pP3r/1n1B1Pq1/1p3p1B/nKPN1k1r/pB3P1r/b2R4 b - - 0 1 illegal: No proof kernel
1knb3Q/6qr/pp2rP1B/R1RN3Q/5p1n/1P2npRB/PP2R1R1/K2N3b b - - 0 1 illegal: Other
1NR5/KR1NpPkn/3n2N1/1r3pN1/1N1p1qpr/3PQ1b1/2B1PP2/nQB2q2 b - - 0 1 illegal: No proof kernel
5nrk/BRKN2p1/6R1/PpQ1ppP1/QQQb2bN/1P1rn1pB/1q2P3/3Q4 b - - 0 3 illegal: Other
1B3B1q/3BRKbN/NP5k/P7/bB4b1/1P1q1Rq1/1qQ2Pr1/1Q3R1n b - - 0 1 legal: proof: e4 a5 c4 c5 g4 f5 exf5 h5 gxh5 b5 cxb5 a4 d4 Bb7 dxc5 Ra5 b4 Nc6 bxa5 Nd4 Bd3 Nb3 axb3 Ba6 Bf1 Bc8 Kd2 Kf7 Kc3 d5 Kd4 g5 Ke5 Kg7 h4 g4 h6+ Kh7 c6 a3 c7 d4 h5 d3 b6 a2 f6 e6 f7 d2 Bb5 g3 Na3 g2 Rh3 Bb7 c8Q Ne7 Kf6 e5 Bd7 e4 Rf3 e3 Nh3 g1Q Nb5 e2 Nc7 e1Q Ba3 Qe8 Na6 Bc6 Qb1+ Qe4 Bb4 Ba4 Qcc2 Qd3 Ke6 Bg7 f8B d1B Ng5+ Kg8 Nh7 Qg3 Qbb2 Be2 Rf1 a1Q Qbb1 Nf5+ Bfe7 Bb2 Ng5 Qeb8 h7+ Kg7 h6+ Kg6 Re3 Bg4 Rf3 Qgf4 Bec5 Qfd4 Bf8 Ng3+ Ke7 Qbf4 Ke8 Nh1 Ke7 Rg8 h8R Bh5 h7 Rg7+ Ke6 Kh6 Rg8 Bc3 h8B Qb2 Nh7 Qb8 Bfe7 Qbf4 Re8 Rg2 Be5 Qg3 Bb8 Qh8 Bf8+ Bg7 Re7 Bg4+ Kf7
1RBb1KBQ/2B2Pn1/1N2r1P1/1k2qp1Q/r1RpN1b1/6P1/P6r/3RB3 b - - 0 1 legal: proof: d4 b5 e4 c5 dxc5 a5 f4 e5 fxe5 f5 b4 g5 h4 a4 hxg5 a3 e6 Nf6 e5 Nc6 exf6 Ne5 Bxb5 Nc6 Bf1 Ne7 b5 Ng8 b6 Ra6 Nxa3 Ra5 Nb1 Ra8 Kd2 h5 Ke3 d5 Kf4 h4 Ke5 h3 c4 h2 e7 Kd7 e8R Kc6 b7 d4 b8B Be6 g3 Qe7 g6 Bh6 Bd2 Bg7 Nf3 Rh5 Ng5 Bf8 Be1 Qb7 Nd2 Bd5 Nge4 Qb6 Bc7 Qb4 Rb8 Ra4 Rc1 Rh4 Qh5 Bf7 Be2 Be8 Ke6 Bd7+ Kf7 Bh6 Bd1 Be3 Kf8 Qb5 Bb3 Bg5 Rf1 h1R Rd1 Qb4 Rf3 Bc8 Rc3 Bb7 Rcc1 Qb5 Rc3 R1h2 Rc2 Kd7 c6+ Ke6 Rc3 Qe5 Rcc1 Ba6 c5+ Bc4 Rc3 Re2 Rcc1 Rhh2 Rc2 Bd5 Nc4 Re3 Nb6 Bc4 Nd5 Be2 Rc4 Bg4 Nb6 Ree2 Bd8 Re3 c7 Ree2 c6 Bh4 Nc5+ Kd6 c8Q Re4 c7 Kc6 Qg5 Kb5 Qh5 Re3 Ne4 Qf4 Nf2 Re6 Ne4 Qe3 Be7 Qf4 Bd6 Qe5 Qd8 Nh6 c8B Nf7 Bc7 Nd6 Qe7 Ne8 Qeh7 Ng7 Qh8 Re7 Rc3 Bg5 Bg8 Re6 f7 Bd8 Rc4
1B4R1/1bRk1pQr/Pn3K2/R1q2RNQ/N2N1Pp1/5q1q/bP2P1B1/8 b - - 0 1 legal: proof: c4 b5 cxb5 a5 bxa6 e5 d4 Ke7 dxe5 Ke8 a4 Ra7 Qd4 Rb7 Qd1 Rb5 axb5 Bc5 Qd4 Ba3 Qd1 Bf8 g4 h5 h4 g6 g5 Bh6 gxh6 Qe7 Qd5 Qf6 Qd1 Qd8 Bd2 g5 Ra3 g4 Bf4 Nc6 Ra1 Nd4 Be3 Ne6 Bc1 Ng5 hxg5 Qe7 Bh3 Qf6 Bf1 Qd8 Kd2 d5 Kd3 c5 b6 h4 g6 c4+ Kd4 c3 e6 c2 Ke5 h3 b7 d4 b8N h2 e7 d3 h7 d2 g7 Nf6 Bg2 Rf8 g8R Be6 h8Q Nh5 Ra5 Bc8 Qg7 Be6 Nh3 Ba2 Ng5 Qd3 Nc6 Nf6 Nc3 Qh3 Na4 Kd7 e8R Nd5 Rc8 Nb6 Rf1 h1B Kf6 Re8 Qe1 d1Q Nd4 Qdd3 Bf4 c1Q Bb8 Qc5 f3 Re3 Qh4 Qe4 Qh5 Ra3 f4 Qef3 Rce8 Rc3 Re5 Rd3 Rf5 Re3 Rc8 Re8 Rb1 Rh8 Rc1 Rh7 Rg8 Qf2 Bf1 Bb7 Bg2 Qff3 Rc4 Qca3 Rcc8 Qc5 Rc7+
2B5/P1R4K/qQ1NBQQp/3R3k/2pQ1Pb1/1PBnqq2/2r2NP1/3r4 b - - 0 1 illegal: No possible last move
1QBrq2Q/r2n1nBP/Pp1NP1n1/Nqpk2PN/4NR2/RR6/7K/8 b - - 0 1 legal: proof: c4 d5 cxd5 a5 b4 f5 bxa5 e5 e4 Bd6 exf5 e4 g4 e3 fxe3 Bc5 e4 Be7 e5 Bf8 g5 h5 h3 g6 Na3 Bg7 Nb1 Bh6 gxh6 g5 Ba6 g4 Qa4+ Bd7 Bb5 g3 Bf1 Bb5 Qb3 Be2 Qd1 Bg4 hxg4 Qc8 Be2 Qd7 Bf1 Qd8 a4 Ke7 d4 c5 a6 b6 a7 h4 d6+ Kf7 e6+ Kf6 a5 g2 Kf2 h3 Kg3 h2 d7 Rh7 g5+ Ke7 f6+ Kd6 f7 Nc6 f8R Rg7 h7 Nb4 d5 Nc2 Ba6 Rb8 a8Q Ke5 d6 Rf7 Nh3 g1N Nd2 Kd4 Nf4 Ke5 Bc8 Na3 a6 Qe7 d8N Nh3 d7 Qf6 Nh5 Qh8 Nb7 Kd4 d8N Nf4 Nd6 Nh6 Nc6+ Kd5 Bb2 Ra7 Bg7 Ng6 Rf4 Nc4 Ra3 Nf7 Qa1 Qe8 N2e4 Nce5 Rb1 h1Q Rbb3 Qf1 Kh2 Nd7 Qf6 Qb5 Qd8 Qe7 Qh8 Qe8 Na5+ Qc6 Bb7 Rc8 Qb8 Rd8 Bc8 Qa4 Rh4 Qb5 Rf4
5NqR/P3R1qB/3r2RQ/4k1qN/1Kn3P1/RNp4p/1rpP2P1/B4Q2 b - - 0 1 illegal: Other
2rN2nR/B1PP2rB/q3Pb1Q/8/rR3KQP/b3nR2/Qb3R1n/N6k b - - 0 1 legal: proof: f4 e5 fxe5 h5 c4 b5 g4 b4 gxh5 b3 axb3 Ne7 b4 Ng8 b5 Bb4 Qc2 Bc5 Qd1 Bf8 b3 c5 Bb2 d5 Ba3 Bf5 Bc1 Bd3 cxd5 c4 Bg2 c3 Bf1 Bc4 bxc4 Qa5 Qb3 Qc7 Qd1 Qd8 Kf2 Kd7 Kg3 f5 e4 a5 d4 g5 h4 c2 c5 g4 c6+ Ke7 c7 a4 b6 a3 h6 a2 d6+ Ke6 b7 Rh7 d5+ Kf7 d7 Kg6 d6 Kh5 e6 Ra6 e7 Rf7 e8Q Nc6 b8R Nce7 e5 Nc6 e6 Nb4 h7 Qc8 d8Q Ra4 d7 Qa6 Rh3 Nd5 Nf3 Ba3 Qf6 Ne3 Rb4 Bb2 Qb8 Rf8 Na3 Rc8 Kf4 g3 Qa8 g2 Bd3 g1R Rh2 Rg6 Rf2 Rg7 Rb1 a1B h8R+ Nh6 Bd2 c1B Nc2 Ba3 Rb3 Bcb2 Qf8 Bf6 Qg1 Bad4 Ne5 Bdb2 Kf3 f4 Bh7 Ng8 Nf7 Nh6 Na1 Ng8 Ke4 f3 Qd1 Kg4 Nd8 Kh3 Kf4 Nf1 Be3 Nh2 Rf1 Kg2 Ba7 Qb6 Qd4 Qa6 Rf2+ Kh1 Re3 Rg6 Qh6 Rg7 Rg2 f2 Rf3 f1N Rgf2 Ne3 Qad5 Rf7 Qa2 Rg7 Qe4 Nef1 Qf5 Ne3 Qg4
3QK1Nr/B2n1Q1B/n5bP/6P1/1Pq5/P1RRR2Q/1rb2q1k/3nNqR1 b - - 0 1 legal: proof: d4 b5 b4 a5 bxa5 h5 f4 g5 g4 e5 gxh5 b4 dxe5 b3 cxb3 g4 b4 Bg7 Bb2 Bf6 Bc1 Bg5 fxg5 Rh7 Ba3 Rh6 Bc1 Rh8 Kd2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 c5 Kd6 c4 h4 g3 e6 Kg4 e7 f5 e8R c3 a3 c2 a6 g2 e4+ Kg3 h6 f4 e5 f3 e6 f2 e7 Bb7 h7 Bc8 a7 Nc6 h5 Ba6 Nf3 g1Q Ne1 Bd3 Nc3 Qc8 Nd5 Nf6 Be3 Bg6 Rc1 Nb8 Bd3 f1B h6 Rf8 h8R Qf2 Rg1+ Kh2 Qf3 Na6 Rd8 Qc4 e8Q Be2 Ke7 Bd1 Qf7 d6 Bd4 Nd7 Nf6 d5 Ng8 Rc8 Be3 d4 a8Q Rb8 Be4 d3 Ba7 d2 Re8 Rc8 Qb3 Rc6 Qd8 Rf6 Qd3 Rf3 Qf1 Rb3 Qd3 Rb2 Qb3 Bgh5 Bh7 Bg6 Qc3 Bg4 Rd1 c1Q Qcf3 Qb1 Rc1 d1N Rc3 B4f5 Nf6 Qbd3 Qc8 Rg8 Kd8 Rg7 Re3 Nb6+ Ke7 Qdf1 Rd8 Bd3 Ke8 Bc2 Rdd3 Nd7 Qd8 Rg8+ Ke7 Nf8 Ke8 Rh8 Ng8 Nd7 Qh3+
Q5bq/q1Q5/N1BP3n/br3RPQ/P5B1/1b1rBP2/2n1kq2/1KBR3N b - - 0 1 legal: proof: b4 a5 e4 b5 h4 f5 exf5 g5 hxg5 d5 c4 a4 cxd5 Ra6 Qxa4 Bb7 Qd1 Bc8 a4 Ra8 Bxb5+ Qd7 Bf1 Qd8 d4 Kf7 Kd2 c5 Kc2 e5 g4 h5 b5 e4 d6 c4 b6 c3 d7 e3 d5 e2 b7 e1Q f6 Kg6 f7 h4 d6 h3 Na3 h2 Be2 Nc6 b8B Rh3 Ba7 Be7 f8Q Rd3 Kb1 Nh6 Nb5 Nd4 Nh3 Rb8 Rf1 Nc2 Bae3 h1B Qh8 Bcb7 Nc7 Bhd5 Na6 Bg8 Bf3 Qa5 d8Q Bbd5+ Qb6 Bc4 Bc6 Bb3 Qc7 Rb5 Qf3 Qb6 Qf8 Qa7 Qa8 Qe2 Rd1 Bd8 f3 Rb6 Nf2 Rb5 Nh1 Qf2 Ra2 Rbd5 Rb2 Rb5 Qcb7 Ba5 Qb6 Kf7 g6+ Ke6 g7 Ke5 g5 Kf5 Qc7 Ke5 Bed2 Kd4 Qh7 Re3 Qh8 Kd3 Qh7+ Ke2 Qg6 Ree5 Be3 Red5 Qgf7 Rd3 Qh5 Bbf7 Rb4 Bb3 Rf4 Nd4 Bcd2 c2+ Ka1 Bgf7 g8B Bfe6 Bh7 Bed5 Bf5 Bg8 Rb1 c1Q Bg4 Qc2 Rd1 Qc3+ Kb1 Nc2 Bc1 Qh8 Rf5
1B4bB/R2PPBb1/2Q2R2/1nnr2nP/1P1Rq1N1/1Qnr1BK1/1b6/1kN5 b - - 0 1 legal: proof: f4 d5 c4 b5 cxd5 b4 a3 Bd7 axb4 Bc8 g4 h5 gxh5 e5 fxe5 a5 b3 a4 bxa4 Bb7 Nh3 Ba6 Ng1 Bc8 Kf2 Kd7 e4 f5 d4 g5 h4 c5 h6 c4 h7 f4 h5 c3 e6+ Kd6 e7 f3 e8R c2 a5 g4 a6 Bg7 a7 Nc6 Rf8 Qe8 Bc4 Be6 Na3 Nh6 Ne2 Rd8 a8B Nf7 Rh4 Na7 Kg3 Ng5 Rf6 f2 Bc6 Rg8 h8B Nb5 Be3 c1B Qb3 Rf8 Nc2 Bb2 Nc1 Rf7 Ra6 Rfd7 Ra7 Qg6 Bd2 Qh7 Ne3 f1N+ Kf4 g3 Ng4 g2 e5+ Ke7 Be3 Nd2 Kg3 g1N Bf4 Bg8 e6 Qe4 Bb8 Ne2+ Kf2 Nf4 Kg3 Nd3 Ba8 Nb1 d6+ Ke8 e7 N1c3 d5 Nc5 Re6 Kf7 Rh6 Rb7 d7 Rb6 Rg6 Re6 Bc6 Re5 d6+ Rd5 Ba8 Bf6 Bc6 Ke6 Bb7 Kf5 Ba8 Re8 d8Q Bg7 Qc7 Rd8 Qc6 Rd7 Nf2 Ke5 Rf6 Kd4 Bb7 Ke3 Ng4+ Kd2 Ba8 Re5 Bf7 Rd5 Qa2 Kc2 Qa3 Rb7 Qb3+ Kb1 d7 Rb6 Qc8 Rbd6 Bc6 Qg6 Bb7 Rd3+ Bf3 R6d5 Qc6 Qf5 Ne5 Qh7 Rd4 Qe4 Ng4
NRb2b2/N4k2/R5PP/1K2QB1n/2N1Qqn1/1R1rP2P/1n4qn/B1n2R2 b - - 0 1 legal: proof: c4 b5 d4 a5 g4 g5 a4 d5 axb5 h5 gxh5 e5 cxd5 g4 dxe5 Ra6 f3 Rg6 f4 Rg5 fxg5 Qd7 Nh3 Qe7 Ng1 Qd8 Kd2 f5 Kd3 c5 Kc4 g3 b4 a4 e3 a3 h6 a2 d6 f4 h3 g2 d7+ Ke7 e6 f3 b6 f2 b5 Na6 b7 Nc7 b8R Na6 b6 Qc7 d8N Qh2 b7 Qg3 Bb2 Qc7 Ne2 g1N Qd3 Nb4 Qe4 Nf6 Nf4 Nd3 Kb5 c4 Na3 c3 Nc4 c2 Nc6+ Ke8 e7 c1N Ne6 Nf3 Bc3 Ng4 Na7 Nb2 Bd3 Qf4 Rf1 Nfh2 Nc7+ Kf7 Na8 Rg8 e8R Rg6 Rb1 a1Q Re6 Qa2 Ra6 Rd6 Bc2 Rd3 Be5 Nd1 Rb3 Nb2 Bb1 Nd1 Ba1 Nb2 Rd1 f1N Re1 Ng3 Rf1 Be7 Qd4 Rd2 Bf5 Nh5 Qd3 Bf8 Qe4 Be6 Rd8 Rd3 b8Q Na4 Re8 Qg2 Qbe5 Nb2 Rb8 Bc8 g6+
BQn1N1R1/qN2qb1b/2P3P1/n3q1rk/RP2NB2/1B2PQNK/1b6/4q3 b - - 0 1 illegal: No possible last move
N1K4R/3BPRBP/7Q/krb1P2Q/4Pn1N/5bb1/1nnNr2r/1N1Br3 b - - 0 1 legal: proof: b4 c5 bxc5 b5 g4 h5 gxh5 Nc6 a4 Nb8 axb5 Qb6 Bg2 Qc7 Bf1 Qd8 f4 e5 fxe5 Qc7 d4 Qc6 e4 Nh6 d5 Qe6 dxe6 Ng8 Kf2 Kd8 Ke3 Kc7 Kd4 d5 h4 a5 c4 g5 c6 Kb6 c7 f5 h6 a4 h7 g4 h5 g3 c5+ Ka5 b6 g2 h6 f4 c6 a3 b7 a2 Qh5 f3 Be2 f2 Nf3 g1B Bd1 Bh2 Nfd2 Ne7 Kc5 f1R Kd6 Na6 b8Q d4 Qb7 Bd7 c8N d3 c7 Rf2 Nb6 Re2 c8B Rb8 Qc6 Bg3 Na8 Nb4 Kc7 Nc2 Qd6 Be8 Bd7 Rb5 Qc6 Ng6 Kc8 Ba3 e7 Bc5 Qf6 Nf4 Rh2 Rg8 h8N Rg6 h7 Rh6 Ng6 Bf7 Rh4 Be6 Rh2 Bg4 Rf2 Bf3 Nh4 Rb3 Na3 Rb5 Rb1 a1R Rb4 Rg6 Nab1 Rg5 Qfh6 Rg4 Nf5 Rh4 Rd4 Rh2 Nh4 Ra4 Rd6 Re1 Rf6 Ra2 Rf7 Rab2 Nf1 d2 Rg2 Bgf2 Rg8 Bg3 Rh8 Ra2 Be2 d1N Nfd2 Nb2 Bd1 Rhe2 Nf1 Nh3 Bg5 Nf4 Nfd2 Ra4 Bf6 Rd4 Nf1 Rdd2 Bg7 Rh2 Bf5 Rdg2 Bd7 Rge2 Nfd2
K4RQQ/1P6/1qQ3N1/Bn1n2R1/n1P3qN/1q3PQP/bnr1Bn2/1N1k4 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 axb5 f5 exf5 g4 d4 Bg7 dxc5 Bh6 Bd2 a5 Bc3 Bg5 hxg5 h5 Ne2 h4 Bd2 h3 Bc1 h2 Ng1 Rh3 gxh3 Ra6 Kd2 Rh6 Ke1 Rh8 Ke2 Kf7 Ke3 e5 Ke4 d5+ Ke3 a4 b4 d4+ Ke4 d3 b6 d2 g6+ Kf6 g7 Kg5 b7 a3 f3 g3 c6 g2 c7 a2 c3 Be6 c8Q Na6 b8Q Nc7 b5 Ne7 b6 Nb5 f6 Nd5 Ne2 g1Q f7 Qg4+ Nf4 Qf6 Qc2 d1N f8N Nb2 b7 Na4 Rg1 h1N g8Q+ Kh4 Kd3 e4+ Kc4 e3 Be2 Nf2 Bd2 Qd8 Qcg6 Qb6 Qc6 Rh7 Qge8 Rc7 Ng6+ Kg5 Qh8 Rc8 Nh4 Rc7 Bf1 e2 Rg2 e1N Be2 Ned3 Be1 Nd4 Nfg6 Rc8 Qeg8 Nb5+ Kb3 Ndb2 Qg3 Nf4+ Kb4 Bf7 Na3 Bc4 Rd1 a1Q Rd8 Qb1 Rf8 Ba2 Rg1 Rd8 c4 Rd2 Rg2 Rc2 Rg1 Qd4 Ka5 Nd5 Ka6 Qbd1 Ng2 Q1d3 Nb1 Qb3 N2h4 Qf6 Qb8 Qd8 Ba5 Qf6 Ne5+ Kf4 Neg6+ Ke3 Qg3 Qd6 Nc3 Kd2 Rg2 Nd4 Ka7 Nb5+ Ka8 Qc5 Nb1+ Kc1 Qgc7 Qb6 Rg3 Qf4 Rg5 Qg4 Bd3 Kd1 Qg3 Qh5 Bf1 Qg4 Be2+
BqR1bb2/n2P1PRk/3QN3/P4P2/6qB/1R1q3b/Q2n2b1/2bNB1KB b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Bd7 f6 Ra5 f5 Bc8 f7+ Kd7 bxa3 Kd6 a4 Ra8 a5 Kd7 g5 h5 h3 b5 h4 Ra6 Qg4 Rf6 gxf6 g5 Qf3 g4 Qd1 Rh7 Nf3 Rg7 Ng1 Rg5 hxg5 Bb7 Qa4 Ba6 Qd1 Bc8 Kf2 c5 d4 e5 a4 c4 a6 b4 d6 b3 a7 e4 a8B h4 g6 h3 a5 g3+ Ke1 g2 Kf2 h2 g7 b2 d5 e3+ Kf3 e2 Kf2 c3 Qa4+ Nc6 Nh3 c2 Qa2 Na7 Rg1 h1B Bd2 c1B Nc3 b1B Nf4 Be4 Ne6 Bd3 Rb1 e1Q+ Kf3 Qe5 Kf2 Bb7 Be1 Bc6 Nd1 Qb8 Rb5 Qc3 Rb3 Be4 Ba6 Qd3 B6b7 Bf3 Rb6 Bg4 Rb3 Ne7 g8R Nec8 Rg7 Nb6 Rf1 Nc4 Kg1 Nd2 Rf3 Qb5 Rfc3 Qd3 Rc4 Bh3 Rcc3 Be7 f8Q Bb5 f7 Bc6 Qh8 Bf8 Qh6 Ba4 Nc7 Kd8 d7 Ke7 Ne6 Bc6 Qf4 Kf6 d6 Bb5 Rc8 Ba4 Rg4 Bc6 Ng5 Kg7 d8B Kh6 Ne6+ Kh7 Bdh4 Be8 d7 Qc4 Qd6 Qc3 Kf2 g1Q+ Ke2 B1g2 Rg7+ Kh8 Be4 Qgd4 Bec6 Qg4+ Kf2 Qd3 Bd5 Bf1 Bh1 Bfg2 Rg5 Kh7 Kg1 Qdg3 Rg8 Qd3 Rg7+
3R2nN/1rQ1Qn1n/n1P3b1/3P1k2/PBRPr1N1/8/N7/KB1nRRnr b - - 0 1 illegal: No proof kernel
nBBQ1r2/1n1qB3/K1R2k1P/2PQN1q1/n1n1Q3/P1rR2P1/r3B1N1/7r b - - 0 1 illegal: No possible last move, all moves rejected
3K4/3RQNn1/k2Nr2P/N2b1BP1/nr3pqQ/1r2q1BQ/P4NP1/2b1R3 b - - 0 1 legal: proof: d4 e5 dxe5 a5 b4 d5 bxa5 h5 c4 g5 cxd5 g4 Qd3 g3 Qh7 h4 fxg3 h3 g4 Bc5 g5 Ba3 Nxh3 Bc5 Ng1 Bf8 Kf2 Kd7 Ke3 c5 Ke4 Kc7 h4 b5 e6 Kb7 Kf5 c4 e4 b4 d6 b3 d7 c3 a6+ Kb6 h5 f6 e7 c2 Ke6 b2 e8N f5 a7 Bb7 e5 Bc5 Nh3 Bd6 Bf4 c1Q Na3 b1R Bd3 Nh6 Rd1 Ng8 Nf2 Ne7 Bg3 f4 Nc4+ Ka6 Bf5 Qc3 Na5 Ba3 Nd6 Rb3 h6 Qf8 d8N Nd7 N8f7 Bc1 Rb1 Re8 a8Q+ Kb6 Ra1 Qe3 Qc8 Nc5+ Kf6 Ka7 e6 Na4 Qg6 Ba8 Qh5 Bd5 Qh4 Rb4 Qd7+ Ka6 Rb1 Qg8 Re1 Qh7 Rb3 Reb8 Rd3 Rhe8 Rdd1 Rb3 Rd2 R8b4 Rd3 Ng6 e7 Nf8 Rd2 Ne6 Rd4 Ra8 e8Q Ng7 Qe4 Qg6+ Ke7 Qh5 Qde6 Ra7+ Kd8 Qg4 Qf3 Rc7 Qe7 Rc6 Rd3 Qh3 Qfh5 Qg4 Qh3 Rcb6 Q5h4 Rc6 Rc3 Rcb6 Rc7 Rc6 Rd7 Rcb6 Nb5 Re6 Nbd6
6br/q1Q1qQN1/1P1B2B1/1B1q3b/1KQP1Rn1/4PP2/1kp4Q/2rn2NR b - - 0 1 legal: proof: h4 e5 a4 b5 axb5 g5 hxg5 f5 c3 d5 e4 d4 exf5 e4 Ke2 e3 cxd4 Bd6 Kd3 e2 Kc2 Bf4 Kc3 Be3 dxe3 Bb7 Kd2 Bc8 b4 Kf7 Kc3 e1Q+ Kc4 h5 g4 c5 f6 Ke6 g6 a5 g7 h4 g5 h3 g6 h2 b6 a4 f7 a3 f8Q a2 b7 Nd7 b8Q Ngf6 b5 Nd5 b6 Nc3 Kb3 Kd5 Bb5 c4+ Kb4 Ne5 g8B+ Be6 g7 Ng4 Qc2 Nd1+ Nd2 c3 Nc4 Qe7+ Nd6 Ra7 Rb1 a1Q Qf7 Rc7 Bh7 Qa7 g8Q Qf1 Qb2 Qg2 Bg6 Rc5 Nf5 Ke4 Bd7 Kd3 Qc7 Qe4 Qa2 Qd5 Bb2 Kc2 Bb5 Ne5 Qc4 Ng4 Qfh7 Bf7 Ba3 Be6 Qgb8 Bg8 Rb2+ Kc1 Re2+ Kb1 Qf7 Ka1 Kb3 Rc6 Bd6 Rc5 Kb4 Kb1 Re1 Kb2 Ng7 Rc6 Ne2 Rc5 Rhf1 h1B Ng1 Bf3 Qbe8 Qh4 Qe5 Qe7 Qh2 Ne5 Nh3 Bh5 Rh1 Rc6 Ng1 Ng4 Rf1 c2 Qe2 Rc3 Qec4 Ra3 f3 Ra1 Rf2 Qa2 Rg2 Rc1 Rg3 Qa1 Rh3 Qa7 Rh4 Ngf2 Re4 Ng4 Rf4
1Q1B4/7k/bqb1p2b/N2N3P/n4R1n/QPP2rrP/1R1QB3/bRK2Q2 b - - 0 1 legal: proof: e4 c5 g4 h5 gxh5 a5 d4 f5 exf5 b5 dxc5 a4 b3 a3 Bxb5 Nf6 Bf1 Ng8 Bxa3 Nf6 Bc1 Ng8 a3 Qb6 Ba6 Qc7 Bf1 Qd8 Kd2 Kf7 f4 g5 c6 Kg7 h3 d5 c7 e6 c3 d4 f6+ Kh6 f5 d3 f7 g4 f6 g3 a4 g2 a5 Be7 f8Q+ Kh7 a6 Bb4 f7 Ne7 a7 Ba6 c8Q Nf5 Be2 Nh4 Ra2 Ba3 Rb2 Nd7 Qb8 Nc5 Qfd6 Qc7 f8R Qb6 Qf1 Rg8 Rf4 Rg3 Kd1 Rf3 Nd2 Na4 Nc4 d2 Na5 Rg3 Kc2 d1B+ Kb1 Rf3 Be3 Bc2+ Kc1 Be4 Qd2 Bc6 Bc5 Rg3 Be7 Rf3 Bd8 Rg3 Nf3 g1B Ne1 Be3 Nd3 Rf3 Nb4 Rg3 Re4 Bh6 Nd5 Rf3 Rf4 Rg3 Qd6 Rc8 a8Q Rf3 Bg5 Rg8 Bd8 Rgg3 Qdb8 Be7 Rb1 Bef8 Rh2 Ba3+ Kd1 Bb2 Rf2 Ba1 Kc1 Kg7 Qaa7+ Kg8 Qe7 Kh8 Qa3 Kh7 Qde1 Nb2 Bc4 Na4 Rfb2 Qg1 Be2 Qb6 Qd2
4b2q/RP1nB1B1/1Q1P4/1b1rR3/1Q2r3/N1bR3k/1PPbp3/n2BB1NK b - - 0 1 legal: proof: e4 d5 a4 c5 g4 b5 axb5 h5 gxh5 f5 exf5 Na6 d4 Qd7 dxc5 Qd6 cxd6 Nb8 f4 Kd7 Kf2 e5 Kg2 g5 h4 a5 b6 g4 h6 g3 h7 d4 h5 d3 b7 d2 f6 Ke6 f7 Kf5 h6 a4 Qf3 d1B Qb3 Kg4 f5 a3 f6 e4 Qa2 e3 Bd3 Ne7 Rh2 Ra4 Qb3 a2 Qb6 Bg7 f8B Be2 f7 Nec6 Be7 Nd7 f8Q Na5 Rh3 Bc3 Kh1 Nb3 Bd2 Re4 Na3 Bf1 Re1 a1Q Nf3 Be2 Ba6 Bb5 Qfd8 Rf8 h8R Rf5 h7 Rd5 Qc5 Qb1 Qdb6 Na1 Qb4 Qa2 Rf8 Qb3 h8B g2+ Kh2 g1B+ Kh1 Bh2 Bg7 Bf4 Re2 Qc4 Be1 Qd4 Re8 Bh6 Rd2 Qf6 Rd3 Qf8 Rh5 Qh8 Re5 Kh3 Rf8 Nb8 Re8 Bcd7 Rd8 Be8 Rc8 Nc6 Ra8 Nb8 Ra7 Nd7 Rd4 Bc6 Be2 Bb5 Bd1 e2 Rd3 Bhd2 Ng1+
k1q1Q3/6NQ/QnB1n3/1Pr1R1R1/1nq1bB2/P1Pp2qB/P7/1K1bNQ2 b - - 0 1 illegal: No possible last move
1Q1R2b1/r1b2N2/BP2PN2/1Q2n2P/qp3Nb1/1n1BKPNq/5B2/q2k2R1 b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 e4 e5 exf5 b5 b4 e4 bxa5 e3 dxe3 b4 e4 Ra6 e5 Ra7 Qd5 Rb7 Qd1 Rb5 cxb5 Bb7 Ke2 Ba6 Ke1 Bc8 Kd2 Kf7 a4 g5 h4 d5 f3 c5 b6 d4 a6 c4 h6 d3 h5 g4 f6 Ke6 h7 Kf5 a5 Kf4 a7 g3 a8N g2 f7 Ne7 a6 Nec6 a7 Qe8 Qe2 Na6 Nc3 Bd6 Nc7 Nc5 a8B Bg4 f8Q+ Kg3 Ra5 Nb3+ Ke3 d2 Bb7 d1B N7d5 Bc7 Nh3 Qa8 Rc5 Qa4 Rg1 Rg8 h8N Rg7 Rb5 Bc2 e6 Ne5 Bd2 Bh7 Nf7 Bg8 Qb8 Rh7 Nf6 Rg7 Nb1 c3 Rd5 c2 Ba6 c1Q Nc3 Qca1 Qb5 Rh7 Nf4 Rg7 Ke4 Kf2 Be3+ Ke1 Nce2 Rh7 Bd4 Kd1 Rd8 Rg7 Ng3 Rh7 Rh1 g1Q Bd3 Qf1 Bf2 Rg7 Ke3 Rh7 Rh2 Qh3 Rg2 Bd6 Ng5 Ra7 Nf7 Bc7 Rg1+
2NB1rQ1/kQ3pq1/1R3R2/4NK2/1rPr4/P2Pq1b1/n5nP/Q1N1nN1B b - - 0 1 illegal: No possible last move
kBr5/1Q1RPpr1/N2P3n/6Nq/2br2PR/1q3Q2/BB2P1Kn/1B3N1n b - - 0 1 illegal: No possible last move, all moves rejected
1n2N1R1/1rP3p1/B1Qqk3/qn2Pb1K/B2n1P2/3q2R1/Qr2PR1B/4N2R b - - 0 1 legal: proof: f4 b5 d4 h5 a4 f5 axb5 c5 dxc5 e5 fxe5 f4 g3 f3 Qd3 Be7 Qh7 Bg5 Qxh5+ Kf8 Qh7 Bf4 gxf4 Ke8 Kf2 Ke7 Kg3 a5 Kh4 d5 c4 f2 b4 d4 b6 a4 b5 a3 b7 a2 c6 d3 c5 d2 b6 d1N c7 Qd7 c6 Qd4 Nc3 Bg4 c8B Bf5 c7 Qd2 Ne4 Qb2 Qh6 Qb1 Nf3 Nc3 Be3 Qc1 Bg2 f1Q Ne1 Na6 b8Q Na4 b7 Bh3 Bg1 Bf5 Nd6 Ra7 Kh5 Ra8 h4 Qd2 Bc6 Qg2 Qa7 Qe4 b8R Qed3 Ne8 Nc3 Rb3 Nb8 Ba6 Nb5 Bh2 Kf7 Rf1 Ne7 Rf2 Qb4 Rd1 a1Q Bd7 Rf8 Qc6 Qbd6 Rc3 Qa5 Ra1 Qd1 Rg3 Q6d3 Nf3 Q1d2 Rh1 Qdb4 Ne1 Qbd6 Qe3 Ra7 Qd2 Rb7 Qa2+ Qc4 Kg5 Rg8 h5 Qb3 h6 Qbd5 Qcc2 Nec6 h7 Ncd4 h8R Qc4 Bc6 Ke6 Kh5 Rf8 Rg8 Rf6 Re3 Rg6 Qe4 Rg3 Ra3 Rb3 Qec2 Rb2 Rg3 Na3 Ba4 Nab5 Qc1 Qcd5 Qc6 Qb3 Qa3 Qd3 Qa2+
8/r1b1n1P1/P4BBk/1n3R2/QQ1q2n1/2R1n2K/1pbPP2N/2RN1QQn b - - 0 1 legal: proof: c4 b5 f4 d5 cxd5 a5 g4 e5 fxe5 f5 gxf5 g5 h4 g4 b4 Ra6 bxa5 Rf6 Ba3 Rg6 Bc1 Rg5 hxg5 Ba6 Ba3 Bb7 Bc1 Bc8 Kf2 Kf7 Kg3 Kg7 a4 c5 d6 h5 f6+ Kg6 f7 b4 a6 b3 e6 c4 a5 c3 a7 c2 a8R Rh7 d7 Nh6 e7 Nc6 e8Q Ne7 Bb2 c1N a6 Nd3 Ra5 Nf2 Bf6 b2 Rf5 h4+ Kh2 h3 Nc3 Qb6 d8Q Qd4 Qb6 Rg7 Qda4 Nd1 Nf3 Ne3 Qab4 Bd7 Kg3 h2 Bg2 Ba4 Rc1 Bc2 Qea4 h1N+ Kh2 g3+ Kh3 Kh7 Rc8 Nhg4 g6+ Kh6 Nh2 Rh7 Bb7 g2 Be4 Bg7 f8Q g1N+ Kh4 Nf3+ Kh3 N7d5 Nd1 Ne7 Qf7 Bh8 Rc3 Bg7 Bh4 Be5 Bf6 Bc7 Bd3 Qe4 Qa7 Nd4 Qac5 Nb5 g7 Rh8 Qcd4 Ra8 Qf8 Ra7 Qb6 Nc4 Qg1 Nce3 Bc4 Qd3 Bf7 Qd4 Bg6 Nc6 Qa8 Ne7 Qag2 Nd6 Q2f2 Nb5 Qff1
r2n3k/q1Rn1r2/1bB1R1Q1/Pr2p3/B7/P2QPr2/1B1qPN1Q/KN2Q3 b - - 0 1 legal: proof: g4 a5 c4 h5 gxh5 d5 cxd5 a4 d3 a3 bxa3 Ra6 a4 Ra7 a5 Ra8 Nd2 c5 Bb2 c4 Ba3 c3 Bb2 Qb6 Nb1 Qe3 fxe3 Bd7 Ba3 Bb5 Bc1 Bc4 dxc4 Rh7 Qd3 Rh6 Qd1 Rh8 Nd2 b5 h4 g5 h6 f5 c5 Kf7 a3 e5 h5 b4 h7 Kg7 c6 g4 h6+ Kf7 c7 g3 c8B f4 d6 g2 d7 f3 d8Q b3 Nh3 g1Q Bd7 c2 Ba4 b2 Qd3 Qg5 Bg2 b1R Ra2 Rb4 Nb1 f2+ Kd2 f1R Kc3 Ne7 Qe1 Qg7 Be4 Rf4 Nf2 Rf3 Rh2 Rg8 h8Q Rb5 h7 Nec6 Rh6 Bc5 Re6 Nd8 Bd5 Kf8 Be4 Qf7 Qf6 Bb6 Qg6 Qa7 h8Q Nd7 Qh2 Rg7 Rb2 Kg8 Ra2 Rc5+ Kb2 Rd5 Ka1 Rb5 Nh3 Kh8 Nf2+ Rh7 Rb2 Rh4 Rb3 Rh7 Bb2 c1Q Rc3 Qd1 Rc7 Qd2 Nh3 Re7 Bc6 Ref7 Nf2+
KBnn4/n3R1Q1/3PPRRP/1rNR3k/3P4/4rB1N/2qq3p/b1n2Q1B b - - 0 1 illegal: No possible last move
N3r3/bN3QB1/1PB2rq1/8/2q1N3/BPrB2Pk/RQp1nP1r/2RbK3 b - - 0 1 legal: proof: c4 d5 cxd5 b5 a4 g5 axb5 f5 e4 g4 exf5 g3 hxg3 Nc6 g4 Ne5 g3 Ng6 fxg6 Qd7 Bd3 Qd6 Bf1 Qd8 d4 Kd7 b3 c5 g5 a5 g7 e5 d6 Ke6 g6 Kf5 d7 h5 d5 a4 d6 c4 Bh6 a3 Bg5 c3 Bh6 e4 Bd2 h4 Ra2 h3 Qh5+ Qg5 d8N c2 d7 h2 Bc4 e3 Qe2 Nh6 g8Q Ra6 g7 Qg6 Bc1 Rf6 Nb7 Bc5 d8B Ba7 Qf7 Re8 Nf3 Kg4 g8B Nf5 b6 Nd4 Nbd2 Kh3 Ne4 Bg4 Bd3 Bh5 Qd2 e2 Qc3 Bg4 Rf1 h1R Qb2 Rh2 Bh6 Bh5 Be7 Rc8 Bh7 Rc3 Bg7 Bg4 Bb5 Bh5 Bc6 Bg4 Ra1 a2 Ba3 Bh5 Rc1 a1Q Nfg5+ Kg4 Bd6 Qa6 Ba3 Qc4 Ne6 Kh3 Nc7 Bf3 Na8 Bg4 Kd2 e1R Ra1 Ree3 Rfc1 Bd1 Ra2 Ne2 Ke1 Rff3 Ned6 Re8 Ne4 Rf6 Ned6 Qg5 Bd3 Qg6 Ne4
R2bk2B/1nQNPP1Q/b1B1r3/2qPq3/1NbQ1p1K/3B2rb/2R2P2/1Q6 b - - 0 1 legal: proof: c4 b5 h4 g5 hxg5 f5 e4 d5 a4 f4 axb5 Nc6 d4 e5 dxe5 d4 Ke2 Qd6 Ke1 Qd5 cxd5 Nce7 Qd3 Bd7 Qd1 Nf5 exf5 Bc8 b4 a5 g4 c5 e6 h5 b6 h4 g6 a4 g5 a3 g7 h3 b5 d3 g6 d2+ Ke2 a2 Kf3 h2 Kg4 c4 b7 c3 b8Q c2 e7 Rh7 b6 Rh6 b7 Rh5 Na3 Ra4 Nf3 Ra6 Ne5 Rd6 Nd7 Rh3 Bb2 c1Q Nc2 Rg3+ Kh4 Re6 Bd3 Nh6 g8B Bg7 Qc7 Bc3 b8Q Nf7 g7 Nd6 Nb4 Nb7 Qa7 Be5 Qd4 Qc5 Qb1 d1B Re1 h1B Re2 Bg2 Rc2 Be2 Bc3 Rf6 Be6 Bh3 g8Q+ Rf8 Bb5 Bc4 Qh7 Rf6 Bc6 Bd6 Qe4 Rfg6 Bh8 Be5 Bg8 Re6 f6 Bd6 Qd4 Be5 Qa5 Bc7 Qb6 Bd8 Qc7 Ree3 Be6 Re1 Bf5 Re6 Qbb2 Rge3 Bd3 Rg3 Rh1 a1Q Qb1 Qb2 Rhc1 Qc3 Ra2 Qe1 Rcc2 Qe5 Ra3 Na5 Ra4 B8a6 Ra3 Nb7 Ra1 Bab5 Ra8 Ba6 f7+
QnB2q2/BpQ1b3/1PNPP1QN/RKR5/4Rn2/b2R1Pq1/n2k4/n2r4 b - - 0 1 legal: proof: f4 a5 c4 e5 g4 d5 cxd5 h5 gxh5 e4 Qb3 Ba3 Qb6 Bc5 Qxa5 Ba3 Qb6 Bf8 Qh6 Bg4 Qg5 f5 Kd1 Bf3 Qg2 Ra6 Qg3 Re6 Qf2 Re5 fxe5 f4 Qa7 Bg2 Qe3 f3 Qb3 f2 Qb6 Bf3 exf3 Qc8 Qf6 Qd7 Qb6 Qd8 Kc2 Kf7 Kb3 g5 Kc4 c5 b4 g4 d4 e3 a4 e2 h4 e1B h6 g3 a5 g2 h5 Qh4 h7 Qe7 a6 Bd2 a7 Be3 a8Q Nc6 d6 Ke6 d5+ Kf5 b5 Kf4 d7 Qd6 d8Q Nd4 h6 Ne2 Rh5 Ng3 Na3 Qd7 Nc2 Qe8 Ra5 Ne2 Qdc7 Be7 Qg6 Qf8 Nb4 Nf6 Nc6 Nd7 d6 Bd2 Nh3+ Ke3 Ng5 g1Q Nf7 Qg3 Bh3 Nb8 Bc8 f1N e6 Nf4 Rd5 Rg8 Bb2 Bc1 Bd4+ Kd2 h8R Ba3 h7 Rg7 Nh6 Ne3+ Kb3 c4+ Ka4 c3 Ba7+ Ke1 b6 c2 Rd3 c1N Rc5 Nc2 Kb5 Na1 Rg8 Na2 h8R Rf7 Rh7 Rf5 Rf7 Rh5 Rff5 Rh1 Rg7 Ke2 Rfd5 Rd1 Rf7 Nh5 Rf4 Ke1 Ra4 Nf4 R5d4 Ke2 Ra5 Ke1 Rdc3 Ke2 Re4+ Kd2 Rd3+
Rnb2Q2/p3P3/2P1Br2/4k2q/K2BP3/NBN1Q3/2PBqR2/1R1qrnq1 b - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 b4 gxf5 b3 axb3 g4 b4 Be7 b5 Bg5 hxg5 Qf6 Nf3 Qb6 Ng1 Qd8 Kd2 Kf7 Kc3 d5 Kb4 h5 e4 h4 g6+ Kg7 b6 h3 f6+ Kf8 b7 h2 f7 Ke7 f8Q+ Ke6 g7 g3 c6 d4 Qe1 d3 Na3 g2 Ne2 g1Q Nc3 d2 Rb1 d1Q Bc4+ Q1d5 Bd2 Qf2 Rf1 h1Q Qe3 Ne7 g8B+ Qf7 Bb3 Rh4 Ka4 Qg1 Rf3 Nf5 Rf2 Nd7 b8B Rh1 Bc7 Nb8 Bb6 Ng3 Bd4 Qe8 Bc4 Qd7 b4 Nf1 b5 Qd8 Bb3 Qc4+ Qb4 Qd6 b6 Qdd5 b7 Qe2 Bh7 Qfh5 Bf5+ Kf7 Bg4+ Kg6 e6 Qd8 Bb6 Qdd3 Bf5+ Kf6 Qf8+ Ke5 e7 Qd1 Bh3 Q3e2 Bhe6 Rh3 Qeh6 Re3 Bc5 Qef3 Bb6 Re1 Qe3 Qfe2 Bd4+ Kd6 Bh8 Nd7 b8R Ba6 Rb7 Rd8 Rb4 Bc8 Rb8 Re8 Ra8 Nb8 Qg8 Rf8 Bd4 Rf6 Bc5+ Ke5 Qf8 Ba6 Bb6 Bc8 Bd4+
n3Q2N/4n1b1/R1B2PP1/6BP/1Pbrn1Qn/1RBNp1r1/1b3R2/1B2K2k b - - 0 1 legal: proof: e4 f5 a4 b5 axb5 d5 c4 h5 cxd5 g5 Qxh5+ Kd7 Qh7 Ke8 f4 Qd7 fxg5 f4 Kf2 Qg4 Ke1 Qf5 exf5 Kd7 Qh5 Kd8 Qh7 Ke8 h4 Kd7 g4 Kd6 d4 a5 f6 c5 b6 e5 h5 a4 b7 f3 g6 a3 g7 e4 g5 a2 g6 c4 Nc3 Ra4 Nh3 Be6 Nf2 Nd7 b8R Ne7 g8B Ra3 Bg5 Bg7 Bd3 Nb6 Rf1 Na8 Bb1 Rb3 Bf7 Rd8 Nd3 Rd7 Be8 f2+ Kd2 Rd8 Bc6 Ra3 Rb3 Bg8 Rh1 f1N+ Ke1 Ne3 Rf1 N3f5 Rf2 Nh4 Qh8 Bf7 Qe8 Rd7 Qc8 Rd8 Qg4 Rd7 Nd1 c3 Ne3 c2 Nf5+ Kc7 Rb8 c1N Nh6 Ne2 Rb3 Be6 Nf7 Ng3 Nh8 Kd6 Rd2 e3 Rf2 Ra5 Ra3 Rb5 b4 Ne4 Rb3 Kc7 d6+ Kb6 Rf4 Bc4 Rf2 Rf5 d5 Rf3 Ne5 Rg3 Nd3 Rd8 d7 Kc7 Ke2 Kd6 Ke1 Rf8 d8B Rf7 Nb2 Ke5 d6 Rf8 Bc7 Rd8 Ba4 Kd5 d7 Kd4 Nd3 Kd5 Bc2 Kd4 Be5+ Kd5 Rab1 a1B Bc3 Bb2 Ra1 Rc8 Qd1 Rc7 d8Q+ Rd7 Bd2 Kd4 Bc6 Rd5 Ra6 Rd6 Nc5 Ke5 Bc3+ Rd4 Rg2 Kf5 Bb1 Ke5 Re2 Kf5 Qb8 Kg4 Nd3 Kh3 Qf8 Nc8 Rf2 Ne7 Rf5 Kh2 Qg4 Kg1 Qe8 Kh1 Rf2
rn1Rr1r1/3Bp3/QPN1R1P1/2k3b1/1N3P2/1nR3R1/1Q1PNb2/2nKB1r1 b - - 0 1 legal: proof: c4 b5 e4 f5 exf5 d5 cxd5 b4 f4 b3 f6 Bd7 g3 Be6 axb3 Nc6 b4 Bc8 b5 Nb8 g4 g5 h3 Bf5 gxf5 g4 Ra3 g3 Ra4 Qc8 Ra1 Qe6+ Qe2 Qf7 Qh5 Qg6 Qd1 Qg4 hxg4 Kd7 Bd3 Kd8 Bf1 Ke8 b4 Kd7 g5 Kd6 b6 h5 f7 a5 b5 c5 b7 h4 f6 h3 g6 g2 b6 h2 Ra3 c4 Qe2 c3 Qa6 c2 Ne2 g1R Rg3 a4 Ba3+ Kd7 d6 Kc6 d7 c1B d8R Bh6 f8Q Bg5 f7 Bb2 Nbc3 Nh6 Qg7 Re8 f8R Nf7 Bc5 a3 Kd1 a2 Bf2 a1N Be1 Nb3 Na2 Ba3 Qb2 Ne5 Rf6+ Kc5 Re6 Nd3 Nb4 Ndc1 Bg2 Rg8 Bc6 Re8 Bd7 Rg8 Qb1 Bb2 Qba2 Bd4 Qb1 Bf2 Qb2 Rg2 Rg1 h1R Rd3 Rgh2 Rgg3 Rg1 Rdf3 Rhh8 Rfe3 Nc6 b8N Re8 Rd3 Rhg8 Bc8 Ne5 N8c6 Nd7 Rde3 Nb8 Bd7 Na5 Rd3 Nab3 Rc3#
k1B2n2/1r1Q1BR1/1BQR3q/pq2r1n1/2PrQ3/K4P2/PP1Nr3/1B1N2r1 b - - 0 1 legal: proof: h4 c5 f4 g5 hxg5 e5 c4 b5 cxb5 e4 d3 c4 dxc4 Bc5 Be3 Be7 Bc1 Bf8 Be3 f5 Rh6 Bg7 Bf2 Bb7 Rh5 Be5 fxe5 f4 Bc5 f3 Be3 f2+ Kd2 Bd5 Rh1 Bf7 Bf4 Bh5 Be3 Bf3 exf3 Qc7 Ke2 Nf6 Bc1 Ng8 Kd2 Qd8 Kc2 d5 Kb3 Kd7 g4 Kc8 g6 Kb7 g5 a5 g7 h5 g6 d4 b6 h4 e6 h3 e7 e3 e8Q h2 Bh3 f1R Ka3 d3 Nd2 e2 Qe4+ Qd5 Bc8+ Kc6 b7 e1R Ne2 Rh7 Rg1 h1Q Rb1 Nh6 g8B Nf7 g7 Qh6 Nc3 Ng5 Bf7 Nd7 b8Q Re2 g8B Nf8 Qb5+ Kc7 Qa6 Kb8 Qc6 Qb5 Ra1 Rg7 Bh7 Ka7 Rg2 Rg1 Qa4 Rb8 Nd1 Rb7 Qd7 Ka8 Rb1 Qd5 Qac6 Qb5 Ra1 Nge6 Rg6 Ng5 Rd6 Rg6 Nb3 Rg7 Be3 d2 Bb6 Rg6 Ne3 d1R Nd2 Rde1 Nd1 Re6 Bf5 Re5 Qb1 Rg4 Ne3 Ngh7 Qd3 Rh1 Rg1 Rd4 Rg7 Rg1 Nd1 Ng5 Qe3 Rgg4 Bb1 Rg1 Qee4
4knq1/rB5B/1BP2n2/1PP1nRrr/7Q/2pq4/B1N1Q1P1/K1Rn1R1N b - - 0 1 illegal: No proof kernel
4r1rk/3Rbp2/Pr1Q2NK/3PN2P/1Bb2B1r/N2B4/Pq6/1Q1Rqq1B b - - 0 1 legal: proof: f4 a5 g4 h5 b4 d5 bxa5 e5 fxe5 Nc6 c4 Nb8 cxd5 Ba3 Kf2 Bb4 Ke1 Bf8 Ba3 g5 Bb2 Nd7 Bc1 Nh6 Qb3 Nf6 Qd1 h4 h3 Nh5 gxh5 g4 Nf3 g3 Ng1 Ng4 hxg4 Qd6 Qb3 Qd7 Qd1 Qd8 e4 c5 Ke2 b5 Ke3 b4 Kf4 g2 d4 c4 g5 c3 d6 c2 d7+ Ke7 a6 h3 g6 b3 Kg5 b2 e6 h2 g7 Ra7 g8Q Qc7 d8B+ Ke8 e5 Ra8 e7 Rh6 Bd3 Rb6 Bf4 c1Q Qh7 Rb7 Na3 b1R Nf3 Qd6 Ba5 Rab8 Bb4 Rb6 Qe4 Kd7 e8B+ Ke7 e6 Qb2 Ne5 Bb7 Qf5 Bd5 Bc6 Re8 Qd2 Rg1 Rd1 Bc4 Qg6 Qb3 Qc2 Qb2 Qb1 Bg7 Qh6 Kf8 e7+ Kg8 Rd2 Qb8 Qd6 Bf6+ Kh6 Kh8 Bf3 Qc8 Rd1 Qf5 d5 Rd8 e8N Be7 Nc7 Re8 Ne6 Qe4 Nf8 Qe1 Bbd2 Rf1 Bc3 g1R Bb4 Rg8 Rg1 h1Q Rg6 Qh3 Bh1 Rf3 Re6 Qhf1 Rg6 Rh3 Re6 Bf6 Re7 Rh4 Rd7 Be7 Nfg6+
1bb1qq1b/1bqp1N2/3BQ3/1k2Q2R/1qB2P1r/3PN3/K1PR2P1/1NR3N1 b - - 0 1 legal: proof: h4 b5 b4 c5 bxc5 g5 hxg5 a5 a4 b4 e3 Ra6 Be2 Rb6 Bf1 Rb5 axb5 Bh6 Bd3 Bg7 Bf1 Bf8 Be2 f5 Rh6 f4 Bf1 f3 Ra3 Nc6 Ra1 Ne5 Rh5 Ng6 Rh1 Nf4 exf4 Qb6 Rh4 Qc7 Rh1 Qd8 Na3 e5 Nh3 e4 Ng1 e3 Nb1 e2 Ba3 Nh6 Bb2 Ng4 Bc1 Ne3 fxe3 Bh6 Kf2 Bf8 e4 e1B+ Ke3 h5 Kd4 b3 Kc3 f2 Kb2 a4 b6 h4 c6 h3 g6 h2 c7 Bh6 b7 Bg7+ e5 Qh4 b8Q Qd8 Qg4 Ke7 Bc4 f1B Bd5 Bfa6 d3 Bf2 Qb5 Bf6 g7 Ba7 g8R Bcb7 Rg5 Rh4 Rh5 Qe8 c8N+ Kd8 Qh3 Kc7 Ne7 Bh8 Qe6 Bb8 Nf5 Bc8 Ne3 Bab7 Ka3 b2 Ka2 a3 Bd2 Qf8 Bb4 Qe8 Qf6 Qf8 e6 Qe8 Qc4+ Kb6 Qe5 Qf8 Qce4 Kb5 e7 Qe8 Bd6 Qf8 Kb3 a2 Qe6 Qe8 Q4e5 Qf8 Nf3 Qe8 Rd1 h1Q Rd2 Qe1 Ng1 Qf8 Rf2 Qa5 e8N Qd8 Rd2 Qc7 Nf6 Qe8 Ng8 Qf8 Nh6 Qe8 Re2 Qf8 Nf7 Qe8 Nd2 b1Q+ Ka3 Qe1 Rc1 a1Q+ Kb3 Qaa5 Nb1 Qab4+ Ka2 Qg3 Rf2 Qg7 Rd2 Qgf8 Bc4+
3RB2N/K1NPrR2/3bb3/1RQPQp2/1PR1q3/2P2pB1/k1n4Q/3n1rn1 b - - 0 1 illegal: Other
4B2r/n6P/3Bp1qk/2pR1N2/3qQ3/K1N2nRP/PBPQN1b1/1r3B1b b - - 0 1 legal: proof: f4 d5 e4 g5 fxg5 a5 exd5 b5 b4 h5 bxa5 Bh6 g4 Bg7 gxh5 Be5 Nf3 Bd4 Ng1 Bb6 axb6 Qd6 Qe2 Qd7 Qd1 Qd8 d4 Kf8 Kd2 Kg7 Kc3 c5 Kb2 f5 h6+ Kh7 b7 b4 d6 b3 h3 e6 d5 f4 d7 f3 d6 f2 Qd5 Qa5 d8N Qe1 d7 Qe5+ Nc3 Ra6 Ne2 Qd6 Rg1 Rc6 Nf7 Ne7 d8Q Qc7 Ne5 Qd6 Qe4+ Ng6 Nc4 Rb6 Ka3 b2 Rg3 b1Q Bb2 Nc6 b8B Bb7 Ne3 Qd4 Bd6 Rb5 Qa5 Na7 Qd8 Qe1 Rd1 Qed2 Qa5 Qf6 Qd8 Qdd4 Rd3 Qf5 Qa5 Ne5 g6+ Kg8 g7 Kh7 Rd1 Nf3 Rd2 Qg6 Qb4 Kg8 h7+ Kf7 g8B+ Kg7 Bf7 Kh6 Bg2 f1B Be8 Qc4 Rd5 Qd4 Na4 Bc6 Qd2 Ba8 Nac3 Bb7 Ba1 Rb1 Bb2 Nh4 Bf3 Bg2 Bg4 Bh1 Bf3 Ba8 Bg2 Nf3 Bf1 Ng5 Rf5 Kh5 Qe5 Bag2 Qe4 Kh6 Rd5 Nf3 Nf5+
1rN5/2B2RQn/1PQ2B2/2bRK1bk/1ppN3B/rrP1P3/B1P1q3/1b1R4 b - - 0 1 legal: proof: b4 e5 f4 b5 fxe5 h5 a4 a5 g4 Qf6 gxh5 Qc6 bxa5 b4 Ba3 Qc3 dxc3 Nc6 Bb2 Na7 Bc1 Nb5 axb5 Ra6 Na3 Ra7 Nb1 Ra8 Kd2 g5 Ke3 c5 Ke4 g4 h4 g3 e6 f5+ Ke5 d5 b6 g2 e7 Kf7 e8R f4 h6 Kg6 h7 d4 h5+ Kh6 a6 d3 a7 d2 Ra5 f3 Na3 f2 Nb5 Rb8 a8Q Ne7 Nf3 g1B Nd6 Bg4 Qc6 Rd8 Nc8+ Be6 Nd4 Ng8 Re7 Nf6 Rf7 Ba2 e3 Bb1 Qg4 d1Q Bc4 f1R Bd2 Qe2 Be1 Bf2 Ba2 c4 Rd5 Bc5 Qgd7 Rhg8 h8B Bh4 Qa7 Bg5 Bh4 Rc1 Rd1 Rdf8 Qad7 Rd8 Qg4 Rd7 Qg3 Ra7 Qg4 Ra3 Bg7+ Kh7 h6 Kg6 h7 Rd8 Qg2 Kh5 h8B Nh7 Bf6 Rg8 Na7 Rb8 Nc8 Bh6 Qg7 Bg5 Bd8 Rb3 Bc7 Ra3 Rd3 Rf1 Rd1 Rb3 Re7 Rf8 Red7 Ra8 Rf7 Raa3 Qg8 Rd8 Bf6 Rf8 Qg7 Rd8 Ne7 Rb8 Nc8
4RQ2/k2R1R2/3BrPnp/1b1q1q1q/2P1N3/1P2PBr1/KQRNN1p1/5n2 b - - 0 1 legal: proof: d4 b5 h4 f5 f4 c5 dxc5 e5 fxe5 g5 g4 b4 gxf5 b3 axb3 g4 b4 Be7 b5 Bg5 hxg5 Qf6 Nf3 Qb6 Ng1 Qd8 Kd2 a5 Kc3 d5 Kb3 Kd7 e6+ Kc7 b6+ Kb7 e7 a4+ Ka2 h6 e8R d4 c6+ Ka6 g6 a3 c7 d3 g7 g3 b7 g2 b3 Nd7 b8Q Nb6 Nd2 Bb7 c8R Ne7 g8N Qd5 Nf6 Ng6 Nfe4 Nc4 f6 Ne3 c4 Qh5 Rcd8 Bc6 Rd7 Rg8 Qc2 Bb5 Qb2 Ra7 Rf7 Re7 Rb1 Re6 Qd6+ Ka5 Qf8 Kb6 Rh3 Qf5 Rf3 Qh5 Rf5 Ka6 Rd5 Qf5 Rdd7 Qd5 Ndf3 d2 Ra1 d1Q Nfd2 Ng4 e3 Nh2 Be2 Nf1 Bf3 Qh5 Ne2 Rg7 Nb1 Qdd5 Bd2 Rg8 Ba5 Qhf5 Bc7 Ka7 Nbd2 Rg7 Kb1 a2+ Kc2 Rg8 Rc1 a1Q Kc3 Qb1 Rc2 Qe1 Kb4 Qh4 Ka3 Qhh5 Ka2 Nf4 Rh7 Rg3 Rhf7 Ng6 Bd6+
K3b1Q1/1n3P1B/2r1p1B1/2k1n1BN/n2pN1Pn/N1B1R2Q/1R3PP1/2r2q2 b - - 0 1 legal: proof: b4 b5 a4 f5 axb5 c5 d4 g5 dxc5 a5 e4 g4 exf5 a4 h3 Bg7 hxg4 Be5 Ne2 Bc7 Ng1 Ba5 bxa5 Bb7 Kd2 Ba6 Ke1 Bc8 Kd2 d5 Kc3 Kd7 Kb4 h5 c4 a3 b6 Kc6 b7 h4 a6 a2 f6 e6 f7 h3 a7 h2 Ne2 Rh5 Nf4 Rf5 Qb3 Rg5 Qh3 Rg6 Na3 Qc7 Bd3 Qd8 Re1 h1N Rb1 a1N Rb2 Rg7 Bg6 Ng3 Re3 Bd7 Nh5 Nb3 Ka4 Na6 b8B Qe8 Be5 Nf5 Bc3 d4 B1d2 Rb8 a8B+ Rb7 Bc1 Nf6 Bh7 Rg8 B1d2 Nc1 Ka5 Nh4 Bg6 Nd3 Bh7 Kc7 c6 Kd6 c7 Rb6 c8Q Ndc5 Bae4 Rc6 Beg6 Na4 c5+ Kd5 Qa8 Qc8 Bc1 Be8 Qb8 Nd7 Kb5 Rd6 c6 N6c5 c7 Ne5+ Ka5 Qd7 c8N Rc6 Nd6 Qb7 Ne4 Qa6+ Kb4 Qf1 Ka5 Bd7 B1d2 Rgc8 Bc1 R8c7 Qg8 Be8 B1d2 Rb7 Bc1 Rb4 B1d2 Rc4 Kb5 Nb7 Bc1 Nb6 Ka6 Na4+ Ka7 R4c5 Ka8 Rc4 Bb4 Rc3 Bd2 Rc1 Be7 Nd8 Bg5 Nb7 Nef6+ Kd6 Bc3 Kc5 Ne4+
2n5/1QP4R/r1QN2RN/1bn2b1p/7N/PbPB1bkp/PB1R1r2/4K2R b - - 0 1 illegal: Other
1kB5/q2RQNR1/1qp1P3/r1q1P1Rr/1b1B2r1/2pN4/2P2nPN/4K1RQ b - - 0 1 illegal: Other
K4kn1/5NN1/4Rb2/NQ1R2P1/2B3Pr/1PBpQ1NP/qr1p1qq1/4Q2q b - - 0 1 illegal: Other
3B1kq1/5r2/1b1KR3/N1pPPBP1/Qr1RB1Bp/QP2q1Nq/b7/2q2N2 b - - 0 1 legal: proof: e4 b5 a4 e5 axb5 d5 d4 g5 f4 g4 fxe5 g3 c4 Ne7 e6 Nd7 hxg3 Nb8 g4 Nd7 g5 Ne5 dxe5 d4 Rh6 Qd7 Rh1 Nd5 cxd5 Qd8 Kd2 a5 Kd3 f5 Kc4 h5 g4 a4 b3 a3 g6 d3 b6 h4 e7 a2 Kc5 f4 g7 c6 g8B f3 b7 f2 b8N d2 Ne2 Be6 Bh3 f1Q Ng3 Qf7 Bh7 Bh6 Bf5 Qf8 Re1 Bd7 Kd6 c5 Nc6 Qg7 Na5 Ra7 g5 Qc8 Bhg4 Qg8 Bb2 Bg7 Qc1 d1Q Nd2 Qf3 Ndf1 Qe3 Bd4 Rc7 Qa3 Bf6 Rad1 a1Q Bc3 Qb1 Rd4 Qbc1 Ba1 Kf7 e8B+ Kf8 e6 Bd8 Beg6 Be8 Bh7 Bg6 Bb2 Rf7 e7+ Kg7 e8Q Bb6 Qea4 Kf8 Rd2 Qg1 Bf6 Qe3 Be6 Bf5 Rd4 Bg6 Bd8 Bf5 e5 Bb1 Be4 Ba2 B6f5 Rhh7 Re2 Rb7 Rf2 Rhf7 Bg6 Rb8 Rf6 Qf5 Re6 Rbb7 Bgf3 Qh3 Bh7 Ba7 Bh5 Rb4 Bg4 Bb6 Bhf5
4R1B1/NP2qp2/K2BQPRQ/Q6n/2p3Qn/3r2B1/q1P2qP1/q2k1qN1 b - - 0 2 legal: proof: h4 b5 d4 d5 a4 g5 hxg5 c5 b4 a5 axb5 a4 e3 Ra5 bxa5 c4 Qf3 Bg7 Qd1 Be6 e4 Be5 Ke2 Bd6 Ke1 Bc5 dxc5 d4 Bd3 Qd7 Bf1 Bd5 exd5 Qd8 Kd2 Kd7 f4 e5 d6 Ke6 g6 Kf5 b6 Ke4 a6 h5 a7 h4 a8Q+ Nc6 d7 a3 g7 d3 Kc3 a2 f5 h3 b7 d2 f6 Ke3 Bd3 e4 Qa5 h2 Qh5 Qe7 d8B Qd6 Ba3 d1Q Bc7 Nb4 c6 Nh6 g8Q Qf1 Qgg4 Qe7 Bg3 Rd8 c7 Nf5 c8Q Nh4 Qce6 Qf2 Bb2 Rd6 Na3 Qf1 Rb1 a1Q Nb5 Qa2 Ba3 Qf2 Na7 Rd8 Bf1 Nd3 Bad6 Nf4 Kb4 Kd2 Qh6 e3 Re1 Nh5 Bd3 Qf1 Re2+ Kd1 Kb5 Rd7 Ka6 Rd8 Rf2+ e2 Bh7 Rd7 Rf3 e1Q Bg8 Qef2 Rf5+ Qf3 Rg5 Rd8 Bb8 Rd3 Bbd6 Q3e2 Rg6 Qf2 Nf3+ Qee1 Rg1 h1Q Rf1 Qfg1 Rf2 Qgf1 Re2 Qhg1 Re4 Qd4 Re5 Qda1 Ng1+ Qee2 Rc5 Qef3 Rc8 Qf2 Re8 Qf1 Qgg5 Q3f2 Qgg4+
Bb1qq1bN/1R2p3/2PbQP1r/b2NP1BB/6Qp/R2k2P1/6Nq/1N3K2 b - - 0 1 legal: proof: d4 a5 a4 c5 dxc5 g5 h4 b5 axb5 g4 Qd6 Ra6 Qd5 Rg6 Qd1 Rg5 hxg5 f5 g3 f4 Bg2 f3 Bf1 Na6 Kd2 Nb4 Rh3 Nd3 Rh2 Bg7 Rh1 Bf8 Nc3 Ba6 Nb1 Nf4 Ke1 Nf6 Nc3 Ne4 Nb1 Bc8 gxf4 g3 Rh5 g2 Rh1 Ng3 fxg3 Qb6 Nc3 Qc7 Nb1 Qd8 c4 Kf7 b4 Ke6 e4 h5 c6 d5 b6 h4 c7 a4 g6 d4 g7 d3 g8B+ Kd6 f5 Ke5 b7 Kd4 b8Q a3 e5 a2 b5 Rh5 c5 Qe8 b6 Rh7 b7 Qf7 f6 Kc4 Bg5 Rh6 Be2 Kd4 Nh3 g1B Nf4 d2+ Kf1 f2 Bh5 Qe8 Qg4 Be6 Ng2+ Kd3 c8N Bb3 Bd5 Bc4 Bc6 Bg8 Qa7 Bg7 b8N Bf8 Qa5 d1Q+ Qe1 Qd2 Nd7 Qa5 Qe6 Qad8 Ncb6 Bg7 Nc3 Bf8 Rb1 a1B Nbd5 Bb2 Ba8 Ba3 c6 Bd6 Rb7 Qb6 Ngf4+ Kc4 Ke2 Rh8 Qd1 Bh6 Nf8 Qbd8 N8g6 Rh7 Nh8 f1Q+ Kd2 Qd3+ Ke1 Ba7 Qdg4 Bab8 Rg1 Qd4 Ng2 Kd3 Bc1 Bg5 Be3 Rh6 Kf2 Q4b6 Ra1 Qb1 Bc1 Bd2 Ra3 Qbb6+ Kf1 Qb5 Nge3 Qb2 Nb1+ Bc3 Bd2 Qa2 Bc1 Qh2 Bd2 Bf7 Ng2 Bg8 Ra4 Bcb4 Bg5 Ba5 Ra3+
nR1k2Nr/1BrP2NP/P1b5/2R2p1B/P3QB2/2B3qp/1KN3p1/1b3Q1b b - - 0 1 illegal: No proof kernel
N1bB3n/N1p1rP1R/1P2Pk2/1qr4R/R2n4/KQ1p2B1/P1Q1np2/1B5B b - - 0 1 illegal: No proof kernel
2N3bB/p3p1pP/nRBb1QN1/k3QP2/1Pr1nNN1/q6n/2P5/2R2K1Q b - - 0 1 illegal: Other
3k3N/pPr1RRQP/B5P1/p4Nn1/6n1/2b2BQn/1qQpbBP1/1B5K b - - 0 1 illegal: Other
B4NQk/p3Q3/P2QQP1R/2q1p3/1nqB1r1r/1R1pP3/Nn4Pb/6NK b - - 0 1 illegal: No possible last move, all moves rejected
3bKQRq/3PpNQR/Qr1BNP1r/N1n1P1pp/4P3/1r2k2N/B7/6q1 b - - 0 1 legal: proof: b4 a5 bxa5 d5 c4 f5 cxd5 c6 f4 g6 e4 Bg7 h3 Be5 h4 g5 h5 Bc7 Bc4 Nd7 Bd3 Nf8 Bf1 Ng6 hxg6 Qd7 Rh6 Bd8 Rh1 Nh6 g3 Nf7 g4 Ne5 fxe5 f4 Ne2 Qc7 Ng1 Bf5 gxf5 Qc8 Kf2 Kd7 Kf3 b5 Kg4 c5 Kh5 h6 a4 c4 d4 c3 d6 Kc6 g7 b4 Kg6 f3 Kf7 f2 g8Q c2 a6 b3 d7 b2 a7 Rb8 a8Q+ Rb7 a5 Bc7 d8N+ Kd7 a6 Bd6 a7 Qc4+ d5 Rh7+ Qg7 Rb8 f6 Rb7 Na3 b1N Qe2 Rb6 Nh3 Qc8 Qa6 Nd2 Nc4 Bc7 d6 Nb3 Ba3 c1R Na5 Rc3 Bc4 Nc5 Ba2 f1Q Qb8 Qd1 a8N Rcb3 Rc1 Qg1 Kf8 Qb7 Nf7 Bd8 Nc7 Qc8 Qba8 Qb8 Ne6 Qc8 Nb7 Kc6 d7 Qb8 Ke8 Qc8 Q6a7 Kb5 Ra1 Kc4 Qa6+ Kc3 Na5 Kd2 Rc1 Nd3 Bd6 Ke3 Nh8 Qb8 Rc8 Nc5 Kf7 Bc7 Rg8 Bd8 Ke8 Qg3 Rc1 Qg1 Nf7 h5 Rh8 Rh6 Rh7 Nd3 Rc8 Nc5 Kf8 Bc7 Rd8 Rg6 Nh6 Qb7 Rb8 Qc8+ Kf7 Qh8 Rg8 Na4 Q8c8 Nc5 Qcf8 Bd8 Ke8 R3b4 Qb7 Rb3 Nf7 Rh6 Qa6
Bk2K3/N1Q2pQP/2P1pqr1/N7/4P3/4Qb1P/1BQ1rprR/R2b1Bb1 b - - 0 1 illegal: Other
3BqB1k/pB3q1b/5P1K/R1p4Q/4Pp2/br2P1QP/1R1N1N2/1bB2Nr1 b - - 0 1 illegal: No proof kernel
1b2Q3/Q1B1BBPP/nB4N1/p1P5/N2k4/RQ1Pn1p1/3pqR2/1bbb3K b - - 0 1 legal: proof: g4 a5 a4 b5 axb5 c5 f3 h5 gxh5 g5 d3 d5 f4 d4 Kf2 c4 Ke1 g4 dxc4 d3 c5 d2+ Kf2 Ra6 Ke3 Rd6 Kf2 Rd3 exd3 Rh7 Ke3 Rg7 Ke2 Rg5 fxg5 Bd7 Ke3 Be6 Ke2 Bc8 Kf2 Kd7 Kg2 Ke6 b4 Ke5 c4 f5 h4 e6 h6 g3 c6 f4 g6 Qf6 c7 Qf7 h7 Qd7 h8B+ Qg7 h5 Bd7 c8Q Bc6+ Nf3+ Kf6 h6 e5 h7 e4 b6 e3 b7 e2 b5 e1B b6 Ne7 Be2 Be4 Qe8 Ke6 Ba3 Qc3 Rh2 Bf2 Bd4 Bd5 g7 Na6 b8B Qb2 Be3 Qe5 b7 Kf6 Bb6 Nf5 Bac5 Ne3+ Kh1 Bg8 Nh4 f3 Bcd6 Bg1 Bb4 f2 Bh5 f1B Nc3 Be2 Qb3 Bd1 Bf7 Qh5 Ra2 Qe2 B8c7 Be7 b8Q Bd6 Be6 Ke5 Rf2 Bf7 Ra3 Bg8 c5 Kd4 Na4 Be5 Qa7 Bf4 Bd8 Bb8 Be7 Bf7 Bg4 Bc4 Bh5 Be6 Bf7 Bc4 Qc2 Ba2 Qb3 Bb1 Ng6 Nf5 Rf1 Be3 Rf3 Bef4 Rf1 Ne3 Rf2 Bfe5 Qc2 Bf6 Nh8 Ke5 Qb3 Ng4 Rg2 Ne3 Bc3+ Kf5 Ba1 Bb2 Ng6 Bc1 Be5 Ba2 Bec7 Bb1 Bf8 Kf6 Nf4 Kf5 Rf2 Kf6 Be7+ Kf5 Bcd8 Ke5 Bdc7+ Kd4 Ng6
4R1R1/8/2k2P1K/1p1q3B/QP5p/1nQP1qP1/rRpBR1p1/QNb2bN1 b - - 0 1 legal: proof: g4 b5 a4 d5 f4 g5 c4 f5 cxd5 c6 gxf5 a6 e4 g4 a5 g3 f6 g2 f5 Kd7 e5 Qb6 axb6 a5 Qb3 Na6 Qd1 Nc7 f7 Ne8 Be2 Nef6 exf6 Nh6 Bd3 Rg8 Bf1 Rg3 hxg3 Ng8 Kf2 Rb8 Ke1 Bh6 Rh2 Ba6 Nh3 Rd8 Ng5 Bc8 Rh3 Bg7 Rh2 Nh6 Nh3 Rh8 Rh1 Bf8 Ng1 Ng8 Kf2 e5 Ke3 h5 b4 a4 d3 e4 Kf4 h4 Kg5 a3 d6 c5 b7 a2 b8R e3 Qe2 c4 Qc2 e2 Qa4 e1Q Bd2 c3 Be2 c2 Bh5 Kc6 d7 Qf2 d8R Qf3 Re8 Bh6+ Kg6 Be3 f8Q Nh6 f7 Bg5 f6 Bg4 Qg7 Nf5 f8Q Nd4 Qga7 Nb3 Re2 Rh7 Rbe8 Rb7 Qd4 Ra7 Qf7 Ra6 Qfa7 Qd5 Rg8 Bf4 Ree8 Be2 Qb2 Bf1 Qba3 Be5 Kh6 Bb2 Re2 Bc1 Qb2 Qf3 Qc3+ Kd5 Na3 Kd6 Rb1 a1Q Rb2 Qa2 Nb1 Ra5 Qe5+ Kc6 Qc3+ Nc5 Ree8 Qad5 Qa1 Ra3 Qa4 Ra2 Nh3 Be2 Re1 Bf1 R1e5 Ra3 Re2 Ra2 Qd4 Nb3 Ng1 Kd6 Qe5+ Kc6 Qc3+
4B3/R1r3pR/r2bKpNN/B2pB3/B3N2P/1P4kP/1P1p1b2/1n1QQ2b b - - 0 1 illegal: Other
1BRR4/N2Bp3/BPQP2Np/1r2kp1P/2P3b1/1pnK2Nn/2Q2bN1/4b3 b - - 0 1 legal: proof: c4 a5 f4 g5 fxg5 d5 b4 c5 bxa5 b5 e4 b4 exd5 Qd7 d3 Qb5 cxb5 c4 Kd2 c3+ Ke1 Ra7 Qb3 Rc7 Qd1 Rc4 dxc4 Kd8 Be3 Kd7 Bc1 Ke8 Ke2 Kd7 h4 Kd6 a4 h6 g4 c2 h5 b3 b6 f6 g6 Rh7 g7 Bb7 a6 Bc8 a7 Rh8 a8B Ba6 a5 Nc6 g5 Bb7 g6 Nb8 a6 Bc8 a7 Na6 Kd3 Bg4 Nf3 Be6 Bh3 Bc8 Nc3 Bb7 Bd7 f5 Ne5 Rh7 Bf4 c1B Qc2 Bc8 Rd1 Be3 Bb7 Bc5 a8Q Nf6 g8N Be3 g7 Ne4 Nf6 Ng5 g8N Rh8 Nfg4 Nc7 N8f6 Nh3 Ba6 Bf2 Ne3 Nb5 Ng2 Bb7 Qe8 Bg7 Ng6+ Kc5 Qa8 Rc8 Bb8 Rc7 Ra5 Kd6 Rd2 Na7 Rc5 Nb5 N6h4 Ke5 Nfe4 Bf6 Ng3 Bg5 Rd1 Bd2 Rc6 Bde1 Rc5 Nd4 Nb5 Ne2 Na7 Nc3 Ng6+ Kf6 d6 Bf3 Ra1 Bg4 Qf3 Rb7 Rc8 Rc7 Rd8 Rc5 Qc6 Rb5 Ra5 Rb4 Rc5 Rb5 Qf3 Na4 Rcc8 Nc3 Nf8 Ke5 Qe4+ Kf6 Qc6 Ke5 Ng6+
nbqQRQ2/3k1K1B/3B3P/5bP1/NQ2N3/P1r1rQ2/Pr1R1bq1/2q1Bn2 b - - 0 1 illegal: No proof kernel
Q1Rn1qBb/Q3P1Bn/3rR2q/P1n3P1/k1P1N3/1NrQ3b/5brN/1K4Q1 b - - 0 1 illegal: No proof kernel
Nr1n4/K3PB2/B4PkB/3RnnP1/rb1N2Pb/1QQb4/1q4r1/2RQQ1q1 b - - 0 1 illegal: No proof kernel
N1kn1B2/r1P2N2/1Qn3KN/2n1N2P/1QR5/B3rP2/b1BPq1R1/1bb2qq1 b - - 0 1 illegal: No proof kernel
1Q3K2/2PNQ1R1/1N2b3/P1BPk1qb/1nr4B/n1R4n/2P1B1qR/qrb1B3 b - - 0 1 illegal: No proof kernel
1kn2B2/1PNnPqQr/B5q1/1R1n1RrN/1PQr3N/1K5P/B1N2bb1/5b2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 b4 Kd7 e4 f5 d4 a5 Kd2 c5 Kc2 Kc7 d6+ Kb7 h6 g5 b6 g4 h7 c4 d5 c3 e6 g3 h3 f4 d7 g2 d6 a4 e5 f3 e7 f2 e8B a3 e6 a2 e7 Nc6 Ba6+ Kb8 Qd3 f1B Na3 Nf6 Bf7 Na7 Nf3 g1Q Kb3 c2 Qc4 Qg6 Nh4 Bg7 Bh6 c1R Nc2 Qg8 d8N Nd7 Ne6 Bb7 Nf4 Bd4 Nh5 Nc8 Bf8 Bbg2 b7 Bf2 Rg1 Q8g7 Be6 Rg8 h8Q Q7f7 Qg7 Rd1 Rb1 Rd2 Re1 Rd1 Re5 Rd4 Rb5 Rh8 Rf5 Rh7 Bd5 Bd3 Re1 Bdf1 Ree5 Ra7 Be6 Ra8 Rb5 a1N+ Kb2 Nb3 Bd5 Nf6 d7 Nc5 d8N Ncd7 Ne6 Ra7 Nc7 Ra8 Qc6 Ra7 Ba2 Nd5 Qc4 Ra8 Rb6 Ra7 Kb3 Ra8 Bb5 Ra5 Ba6 Ra3+ Kb2 Rg3 Rb5 Rg5 Kb3
b4b2/PB1N1P1P/1qQ4r/b1N1nn1q/3B2QR/8/q1n1KRrP/B3RRk1 b - - 0 1 illegal: No possible last move
1b3Rb1/n6Q/1P1Pr1PK/2Qb1qB1/6QR/1rkPB1n1/1nB3Qb/N1b4N b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kf7 Ke3 e5 f4 a5 g4 c5 b4 h5 f6 h4 b6 h3 b7 h2 f5 a4 d6 e4 Kf4 a3 Ne2 c4 Ng3 e3 Bd3 a2 Na3 c3 Bc2 Nc6 b8Q e2 Qa7+ Qd7 Qc5 e1N g6+ Ke8 Kg5 Rb8 g7 Kf7 Qf2 Rh6 Qg2 Nge7 Qde2 Na7 g8Q+ Ke8 Qg7 Nd3 Qh7 Nb2 f7+ Kd8 f6 Nf5 Rf1 h1B Rf3 Bg7 f8B Ba6 f7 Be5 Bg7 Re6 Bh6 Bc4 Kh5 Kc8 g5 Kb7 g6 Kc6 Bg5 Kd5 f8Q Kd4 b5 Qf7 Rb1 a1B d3 Bb3 Qc8 Bd5 Ne4 Bh2 Nf2 Ng3+ Kh6 Qf5 Bcd2 Rf6 Rf1 Bg8 Bc1 Re6 Rf4+ Qe4 Rf8 Qf5 Bcf4 Rb7 Qg4 Rb6 Qgb7 Bd5 Rh1 Bg1 Rh4 Bh2 Qba8 Rb7 Nh1 Rb6 Bb3 c2 Ba4 c1B Bc2 Rb7 Qc6 Rb8 Qb6+ Kc3 Be3 Rc8 Qab7 Rc4 Qa8 Rb4 Qab7 Rb3 Qc5+ Nc4 Bb1 Bab2 Nc2 Ba3 Na1 Bb4 Qbc7 Ba5 Qb7 Bc7 b6 Bb8 Qa8 Qe4 Bc2 Qf5 Qa3 Nb2 Qc6+ Bc4 Qg2 Bd5 Qc5+
3nbb1R/NQBRP3/1r1P2r1/N5P1/b2N2QK/n3PN2/b1R5/rB2n1qk b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Bb7 d4 Ba6 d5 Bc8 Kf2 Ke7 Kg3 a5 d4 h5 b4 c5 b6 f5 g6 h4+ Kh3 a4 g4 f4 e6 Kf6 e3 Kg5 g7 f3 b5 f2 e7 a3 b7 c4 b6 a2 Qd3 c3 Qa6 c2 Ne2 Rh6 Nf4 Be6 Bd2 c1N Ba5 Nd3 Nd2 Nd7 b8N N7e5 b7 Nc4 Rc1 a1R Ne2 Na3 Nc6 Rb8 Na7 Qc8 Bg2 f1B Rc4 Qe8 Bc7 Ne1 Rh2 Qg6 Rc1 Rd8 b8N Rd6 Qb7 Rb6 Nbc6 Bd7 Na5 Be8 d6 Ba4 d5 Be8 Nd4 Bc4 d7 Ba2 d8R Ba4 Rh1 Be8 Kh2 h3 Kg3 h2 Rg1 h1B d6 Ba4 Bh3 Bhc6 Rh1 Be8 Rc6 Qf7 Bg2 Qf1 Rd7 Qg1 Rh2 Rf6 Rh8 Nh6 Kh3 Nf7 Be4 Nd8 g8Q+ Bg7 Qe6 Bf8 Bb1 Rg6 Qe4 Kf6 Qg2 Ke5 Qe2 Kd5 g5 Ke5 Kh4 Kd5 Rc2+ Ke5 Ndc6+ Kd5 Ndb3 Ke4 Qc4+ Kf3 Nd2+ Kg2 Nf3+ Kh1 Qg4 Rf6 Ncd4 Re6 Qf4 Rg6 Qg4
1q6/3P2r1/2b2PBr/1n1nnbr1/P3RR1B/1R1RrP2/1Nk3Nb/K2QBQ2 b - - 0 1 illegal: No possible last move
2B1br2/2N4R/RK1BNNqP/1B1P2b1/q1NP2b1/Q1r2k2/5Q1P/n2nb1b1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Kd7 Ke3 c5 b4 g5 e6+ Kd6 h6 Ke5 e7 f5 e8B a5 d3 g4 b6 g3 b5 g2 b7 a4 b6 c4 Bh5 a3 Qd2 c3 Nh3 a2 Ng5 c2 Ne6 Nc6 b8Q+ Qd6 b7 Na5 Bg4 Nf6 Na3 Ne4 Rg1 Nc3 Qa7 Nb3 b8N Be7 Bh3 Bh4 Na6 Be1 Nac7 Rf8 Bb2 c1B Nc4+ Kf6 d4 f4+ Kd3 f3 e4 f2 Qa3 Nd1 e5+ Kg6 Bc3 Kh5 Bb4 Ra6 Qdb2 Bg5 Qc2 Qc6 Bd6 Kh4 Be2 f1B Qd2 Qe8 Qe3 Rc6 Bg4 Bg3 Qf2 Qg6+ Bf5 Ne3 Kc3 Nd1+ Kb4 Bd7 Kb5 Be8 Bed3 Be2 Bg4 Rc5+ Kb6 Bf3 Re1 g1B Re4 Be2 Rf4 Bf3 Rf7 Be2 Bgf5 Bg4 Rh7 Kh3 Ng7 Kh4 e6 Kh3 e7 B3h4 Rb1 a1Q Nge6 Qa2 Rb2 Na1 Rb5 Qc2 Ra5 Qa4 Ra6 Bg3 Qd2 Be1 Qf2 Bb5 e8N Bd7 Nd2 Rc3 Bb5 Bc6 Nf6 Be8 Qe3+ Kg2 Nc4 Rc1 Nc5 Rc2 Bc8 Rc3 Qd2+ Kf3 N5e6 Bh3 Qc2 Bg4 Qf2+
3N4/Q1Q2Prr/1K2bR2/2NB1rnq/2Pk3b/P1r1q3/NP1rN2B/2R1Qn2 b - - 0 1 illegal: No proof kernel
4B1R1/r1P2QBn/1qn5/bk6/4NrP1/1NP3Q1/nK1NPnBR/1N1b1n1q b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Ba3 c4 Be7 c5 Bf8 Kd2 h5 Kc3 a5 b4 f5 g4 d5 g6 Kd7 b6 Kc6 g7 a4 b7 a3 e6 a2 e7 h4 e8N d4+ Kb3 d3 c3 f4 Rh2 h3 Bg2+ f3 Nd6 d2 Qf1 d1N Ne4 f2 Bh6 Nf6 g8B Kb5 c6 Ra7 Bf7 Nh7 Bg7 Bd7 Be8 Qb6 Nf3 Bc5 Nfd2 Rf8 Kc2 Rf4 Kb3 Be6+ Kc2 Bb3+ Kc1 Nd7 b8N Ne5 Na6 Be7 Nac5 Bd8 Bf6 Ba4 Bg7 Bc2 Ncb3 Bc7 Qe1 f1N Qg3 Nf2 Kb2 Bd1 Qf3 Qb8 Qg3 Ba5 c7+ Nc6 Nf3 Ka4 b5 Qb7 b6 Kb5 Nfd2 Qa6 b7 Qb6 Rh1 h2 b8Q Rb7 Rg1 h1Q Qc8 Ra7 Qe6 Qh2 Rh1 Qg1 Rh2 Qh1 Nf3 Ra6 N1d2 Ra7 Rb1 a1N Qf7 Nc2 Ra1 Qa6 Nb1 Qb6 Nfd2 Nb4 Ra4 Na2 Rd4 Qc5 Rd8 Qe3 Bd7 Qd4 Rg8 Qb6 Be8
1Q1q4/1q2q3/Brkb4/RRq1n1n1/1B1P3b/NPr1B1RQ/b1P2P1N/3K1R2 b - - 0 1 illegal: No proof kernel
1RN2rq1/1n2k3/3b1rr1/r1P5/BR1Q1bq1/N1RNn1B1/P1PPb3/2N1K2Q b - - 0 1 illegal: No proof kernel
2nN2nK/Bb2R1r1/3R3P/P1rq4/2qNPPk1/2n1R1b1/Q2NQ1Bn/1R1r4 b - - 0 1 illegal: No proof kernel
B3Nq2/3N4/1K1PrQq1/2rBN1nP/qbR3PB/Q1nq2Pr/b2k2R1/2N5 b - - 0 1 illegal: No proof kernel
Qr1NR1N1/qnn1KQq1/3Pb1r1/1P6/4P1R1/1Q1b3P/Bk1bQ3/1r2BRr1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 f5 Kf4 a5 Kg5 c5 d4 f4 e4 c4 b4 a4 h6 g6 h3 c3 h7 a3 e6 Kd6+ e7 c2 b6 f3 b7 f2 Bc4 f1B Bd2 c1R Nf3 a2 Qe2 Na6 b8Q+ Qc7 e8Q Nc5 Rg1 Nb7 Rg4 Ra6 Nc3 Ne7 Kf6 g5 Qf7 Rb1 Be1 Bh6 Ne5 Be6 Nc6 Rb6 Qa8 Rb8 h8Q Qd7 b5 Qc7 Qb2 Bd3 Nd8 Qc5 Qe2 Rc6 Qhg7 Qa7 Qgg8 Ra6 Rh4 g4 Bb3 g3 Rg4 g2 Bc4 Kd7 d6 g1R d5 Bd2 Bb3 Rc1 Rb1 a1Q Bc4 Qb2 Ra1 Rb1 Ba2 Kc8 d7+ Kc7 Qgf8 Kd6 Q8g8 Kc5 d6 Kd4 Nd5 Ra3 Nb4 Kc3 Nbc6 Nf5 Ne7 Ne3 Nd5+ Kc2+ Ke7 Qg7 Nf6 Kc1 Qh7 Kb2 Ng8 Rc3 Qh5 Rcc8 Qd5 Rc5 Qc4 Rg5 Qb3+ Kc1 Nc6 Rg6 d8R Nd5+ Ke8 Nf6+ Ke7 Ne8 Rc8 Nc7 Re8 Ba5 Nd8 Bd2 Qb4 Kc2 Qa4+ Kc3 Qb3+ Kd4 Rh4 Rd1 Bg3 Rde1 Rg4 Rc1 Qd5+ Kc3 Qc4+ Kb2 Qa4 Rc2 Rf1 Rc1 Be1 Rb1 Qb3+
1R2b3/2k5/1r1PqQ1P/bb2P1nN/1RQ1QN2/3rB1K1/3rbPB1/1RR1q1n1 b - - 0 1 illegal: No possible last move, all moves rejected
N3Q2n/1K6/2RPPQnB/4Nn2/NP1NBP2/2rrb2R/2q2nb1/1R2q1qk b - - 0 1 illegal: No proof kernel
K3k1N1/4Rbn1/B1RPP1Q1/5q2/QPPq2QB/2R1q1r1/qbn1N1rR/1b6 b - - 0 1 illegal: No proof kernel
1kr4q/2r2N2/2P1b1QQ/rq1n1RB1/P3Q2N/N1q5/1bPn1R1P/1B2r1NK b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 a4 d5 f4 Kd7 Kf2 Kc7 Kg2 e5 c6 g5 h6 b5 h7 g4 a6 d4 f6 b4 f5 g3 a7 d3 f7 d2 f6 b3 Bd3 e4 Ra2 e3 Rb2 e2 Ba6 e1Q Bc4 Na6 Qg4 d1R Na3 Qc3 Qe6 Nc5 Bg5 Re1 Qe4 Bg7 f8Q Be6 f7 Nf6 Rb1 b2 Ba2 Rc8 a8Q Nb3 Qa5+ Kb8 Qaf5 Nd2 Qg6 Rg8 h8N Rc7 Rd1 Nd5 Bb1 Bd4 Qfh6 Qf6 Rc1 Rgc8 f8N Qg7 Nf7 Qh8 Qgh5 Bg7 Ng6 Be5 Nh4 Bd4 Ba2 b1Q Q5g6 Qb5 Bb1 Bf6 Nh3 Bg7 Rf1 Bf6 Kg1 g2 Rd1 Qg3 Rc1 Bb2 Rd1 Qgc3 Rc1 Re2 Rf5 Re3 Rcf1 Re2 R1f4 Re1+ Kf2 g1R Rf3 Rh1 Kg2 Rhf1 Ng1 Rf2+ Kh1 Rg2 Be7 Rg5 Rf2 Qb7 Bd6 Nb4 R5f4 Ra5 Be7 Nd5 Bg5 Qb5 Rf5
3q3N/nB1QB2b/1P4r1/1nR1R1Q1/2b1q1PP/1k3QN1/1q1b1r1P/b2RQ1K1 b - - 0 1 illegal: No proof kernel
1qR1q1N1/b6P/KN3Q1q/3b2r1/1R2PrR1/nn3bQ1/bBkPP3/5BBR b - - 0 1 legal: proof: g4 d5 c4 e5 cxd5 h5 gxh5 a5 b4 e4 bxa5 e3 fxe3 Rh7 e4 Rh8 h4 Ke7 a4 Kd6 a6 Kc5 d6 Kc4 a7 c5 a5 g5 d7 f5 a6 b5 h6 f4 h5 f3 h7 g4 h6 g3 Bh3 g2 Rh2 b4 Ra4 Qe8 d8B Be6 Bc7 Bd5 Bf5 Nd7 Bd6 Ne5 Rh1 Ne7 Nh3 Rg8 h8Q Rg5 h7 N7c6 Kf2 Nd4 Ke3 g1Q+ Nf2 Qg3 Ng4 Nb3 Nh6 Qh3 Qg1 f2+ Qg3 f1B Bg4 Bg2 Ng8 Bf3 Nc3 Qh6 Bh3 Rc8 a8R Rc6 Bc7 Rf6 a7 Rf4 Rd8 Bd6 Ba5 Bb8 a8R Ba7 Bf1 Qf7 Rd6 Na1 Qf6 Kb3 Qh2 c4+ Rb6 Rg6 Kd4 Qe8 Kc5 Rgg4 Qfh4 Rg3 Na2 c3 Bb2 Nc4 Rc8 Na3 Qg1 Rgg4 Qgg3 Rg7 Rc6 Qb8 Rc8 c2 Nc3 c1Q Qe7 Qc2 Qe6 Qd3 Qe7 Kc2 Qeg5 Nc4 Kb5 Nb3 Ka6 Qd4 Qd8 Qde5 Rg6 Na3 Qf6 Qe8 Rg4 Rg5 Bb6 Nd4 Ba1 b3 Rb4 b2 Bc5 b1B Na4 Bba2 Bb2 Nb3 Nb6 Ba8 Bf2+ Bc6 Bc5 Bd5 Bg1+
4qn2/R1Kn1Pr1/PP2B1QN/7Q/1bb2rB1/1q2BBk1/N1bPR1Rb/1r6 b - - 0 1 illegal: No proof kernel
1k2N1n1/2QRP3/2q2b2/N3R1bb/Q2rr3/1BR3n1/PP2qrRP/QKB3r1 b - - 0 1 illegal: No possible last move, all moves rejected
BN1bQ3/B1n1PQn1/b2N1BK1/1qqN4/1Pr1Nr2/8/1k1PqP2/Rq4Rb b - - 0 1 illegal: No proof kernel
NrB4r/bN2Pn1n/q2nqQ2/1P2R2P/P1BQ4/B1BK1k1b/R1r5/1Q2r3 b - - 0 1 illegal: No proof kernel
2BnR1Nr/Q1nNP1qb/B1P3P1/2q5/n1N4k/brR2K2/3B2rP/3rQ1N1 b - - 0 1 illegal: No proof kernel
1B1rN2Q/3PK2N/brBQ2q1/2PQ2P1/qn1nP1Nk/4b3/1RR2n2/1Q1r1r2 b - - 0 1 illegal: No proof kernel
Q2b1K2/1P1B2r1/bnP1rQ1N/1n2RN2/1r3r1q/2Bq1PQq/2P5/BRQ4k b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kf3 Kf6 Kg4 Ke5 Kg5 Ke4 Kg6 d5 Kf7 e5 b4 a5 h4 g5 b6 a4 f6 a3 c6 a2 b5 g4 h6 g3 h5 d4 h7 g2 h6 d3 Rh5 d2 f3+ Ke3 Ne2 Kf2 Nd4 Kg1 Na3 e4 Nc4 e3 Rb1 e2 Ne5 e1R Ng4 Ra4 Bd3 Be7 Bf5 Na6 Bd7 Bb7 Kg7 Nc7 f7 Rc4 f8Q Nf6 Ba3 Ra4 Qc1 d1Q Bb4 Ba6 Kf7 Re2 Be1 Nfd5 Rf5 Rg8 h8Q a1R h7 Re6 Nh6 Kh1 Re5 g1Q Ndf5 Qg3 Qfg7 Qd3 Qg6 Qh3 Qg3 Rf4 Qhg7 Bh4 h8Q Raa4 Qf8 Qg5 Qa8 Qe2 b7 Rgg6 Kf8 Qgg4 Qg7 Bd8 Qf6 Qeg2 b8B Rg7 b6 Qf1 b7 Rab4 Ba7 Qd3 Bb6 Nb5 Bd4 Nb6 Ba1 Qgh4 Bec3+
6r1/QP2NP1B/PRNPBq2/k2b2n1/r4B1K/1q4nR/2n2NrN/1Q1rb3 b - - 0 1 illegal: No proof kernel
3n1KNQ/PbrPRRPB/1bq1Nn2/kB1q4/P6b/1Q2BQ2/B3q2b/3r4 b - - 0 1 illegal: No proof kernel
2Q2n1K/R6P/1k1b1r2/Nq4Q1/1nN1RB2/N1P2P1b/3nNPpQ/1brB3r b - - 0 1 legal: proof: d4 b5 a4 f5 axb5 h5 g4 c5 gxh5 f4 dxc5 f3 exf3 Bb7 Qd6 Ba6 Qd1 Bc8 Kd2 a5 Kd3 g5 Ke4 d5+ Ke5 Kd7 h4 Kc7 b4 g4 b6+ Kc6 b7 e6 c3 a4 h6 d4 h7 d3 h5 d2 h6 a3 Rh4 g3 Ne2 g2 Re4 a2 Na3 Ne7 Kf6 Na6 b8Q Qd7 Qh2 e5 b5+ Kb7 b6 Qb5 Qa4 d1B Qa5 Bh3 Bf4 Nb4 Kf7 Kc6 b7 Ra6 b8N+ Kb7 Nc6 Ng6 Kf6 Bd6 Kg7 Bc2 Qd8 Rb6 Qg5 Bb1 Na5+ Ka6 c6 Nf8 c7 Rc6 c8Q+ Kb6 Rd4 e4 Rc4 e3 Re4 Bg4 Ng3 Bf5 Be2 Bh3 Bd1 e2 Qe7 e1N Ne2 Ned3 Qg5 Nb2 Kf7 Rg8 h8N Nc4 Ng6 Nd2 Ne5 Rg6 h7 Rh6 Kg8 Rf6 Nf7 Rc5 Kh8 Re5 Qgg3 Rh5 Qg5 Qd3 Qh1 Be6 Nc2 Qb5 Ne5 Bg4 Qg1 Rh1 Qh2 Be6 Nb7 Bh3 Ncd4 Bd3 Nc4+ Ka6 Nc2 Ka7 Rb1 a1R Rb3 Rc1 Ra3+ Qa5 Ra4 Qa6 N2a3 Bb1 Ne5 Kb6 Ra5 Qd3 Ra7 Qc4 Na5 Qb5 Nec4+
N1k4n/nr1Q2bP/2nq3r/Q1N3bp/2PPRr1B/1R2PB2/bB3N2/4NK2 b - - 0 1 illegal: No proof kernel
b1q4n/1QP3pN/r2R1rbR/2BQ1n2/1PK1P1n1/1NbB1P2/5Q2/1N2Qr1k b - - 0 1 illegal: No possible last move
1Bb3Q1/1P1N4/P1Br1BnR/n7/1Nr2kbr/PpR1b2B/Qq1nQ1P1/7K b - - 0 1 illegal: No proof kernel
1nrR4/P2nb3/q1R1b1n1/NQ3R2/K2pN2P/1P3b2/1RQP1r2/2NkBr1B b - - 0 1 legal: proof: g4 b5 f4 a5 b4 e5 fxe5 h5 bxa5 b4 gxh5 b3 cxb3 Ra6 Nc3 Ra7 Nb1 Ra8 a4 Ke7 e4 Ke6 h4 f5 h6 c5 a6 d5 h7 g5 a7 f4 a5 g4 a6 d4 Bg2 c4 Ra2 f3 Na3 c3 Rb2 g3 Qc2 f2+ Kd1 f1B Ne2 Ne7 Nc4 Nec6 Na5 Rg8 h8R Ne7 Rh5 Nd5 Rf5 Qf6 Rh3 Ne7 Bh1 Kf7 e6+ Kg6 e5 g2 Re3 g1R Re4 Nec6 e7 Nd7 e8N Ncb8 e6 Be7 Nd6 Rf8 Re3 Rg2 Ne4 Rf2 Rd3 Bg2 Re3 Bc5 e7 Bf3 e8Q+ Kh6 Qe5 Be7 Qb5 Qb6 Ng5 Kh5 Re6 Kg4 Rc6 Rf7 Ne4 Rf6 Qb1 Rf7 Kc2 Qb7 Kd3 c2 Kc4 Qb6 Ra2 Rf6 Ba3 c1N Rb2 Nd3 Qc2 Nf4 Nc1 Ng6 Bc5 Rf7 Kb4 Rf1 Ka4 Rf6 Nc3 Kg3 Bd6+ Kf2 Ne4+ Ke1 Bg3+ Rf2 Qc3 Kd1 Qcd3 Nde5 Qdc4 Be6 Qd3 Rf1 Be1 Ned7 Rc3 Be2 Re5 R6f2 Rf5 Nde5 Rc6 Bf3 Qc3 Nbd7 Qcc4 Ndf8 Qc3 Rd8 a8R Re8 a7 Qa6 Rcc8 Nc6 Rc7 Nd7 Rac8 Ncb8 Rc6 Rf8 Qcc5 Rf6 Rh8 Rf8 Qc3 Rc8 Rd8 Bd6 Qcd3 Be7 Qc2+
1r1r1b1K/3b4/1NNR4/2k3PP/NbN1B2P/R1B1nnq1/2p2QP1/3rQQq1 b - - 0 1 illegal: No proof kernel
6k1/bb5b/1N1Qqn1B/qP2n3/PP1r4/3PKBR1/1Q1R1NBp/Qn1r1B2 b - - 0 1 illegal: No proof kernel
rB2bK1b/3b1R1B/1Qq5/P1p1k1qP/5r2/N1n3Pn/2NPN1B1/1rRN2Q1 b - - 0 1 illegal: No proof kernel
2rR3k/1Q1nb3/5p1q/N1P2q2/bK1n1PNP/BN2r1PR/1Q2Q1B1/1n2r2N b - - 0 1 illegal: No possible last move
2q4Q/4q3/1RPnR3/b2r2qk/b1NRPrRr/3N3Q/PP2B1Kp/nQ4B1 b - - 0 1 illegal: No proof kernel
qQKN2Q1/2nQNn2/RP1b3B/2q4q/pk3Rr1/1nR2P1P/RrBP4/1b6 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kd7 Kd3 Kd6 Kc4 a5 b4 g5 b6 c5 Kb5 e5 f3 a4 b7 c4 h6 c3 h7 e4 f6 g4 h3 g3 f7 c2 Nc3 g2 Ba3 c1Q Bd3 e3 Bc2 e2 Ra2 e1Q Nge2 g1N Nf4 Nf6 Ne6 Qe7 Kb6 Qf1 Nd8 Na6 b8Q+ Nc7 Qe1 Qd7 Qe8 Rg8 h8Q Rg4 Qg8 Qf5 Bb2 Qe5 b5 Bf5 Kb7 Kc5 d6 Ne4 d7 Ne2 Kc8 Bd6 f8R Nd4 Nd5 Ng5 Ne7 Nb3 b6 Ra5 Bd4+ Kb4 Be3 Nf7 Bh6 Rb5 Rg1 Qg2 Re1 Be4 Re3 Qh5 Rc3 Qf2 Qh7 Qfc5 Qg8 Ne5 Rf4 Nf7 Ne6 Qc6 d8R Qa8 Qc6 Qg1 Rd7 Qgc5 Nd8 Na6 Ra7 Nc7 Rf5 Bd3 Qd7 Be4 Ra6 Bd3 Bd1 Bb1 Rf4+ Nd4 Re3 Kc4 Rf6 Rb2 Bc2 Nb3 Rc3+ Kb4 Rf4+
3b1nr1/NBq5/1P3N1P/n1Nb2r1/P3nB1P/2B3Nq/pk1qRQR1/3Q2K1 b - - 0 1 illegal: No proof kernel
3Qn2R/1Q1b3r/1Pr1RBP1/1K1nr3/2P1Qp2/4b2n/1N2kP1q/1BQ1Rq1N b - - 0 1 legal: proof: d4 b5 h4 c5 a4 e5 axb5 g5 hxg5 c4 dxe5 c3 bxc3 Ne7 c4 Ng8 c5 Be7 Nf3 Bd6 Ng1 Bf8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 g4+ Ke4 e3 a5 g6 d5+ Kc3 h5 g7 f5 c6 d4+ Kc4 f4 c7 h4 g5 h3 e6 h2 g6 a4 b6 a3 e7 a2 e8R+ Ne7 g8Q d3 Kb5 d2 c4 Rh7 Bb2 Na6 Ne2 Kd3 e4 Nd5 e5 Qh4 e6 Bc5 e7 Be3 Qc1 d1R Bf6 Re1 Nbc3 Ra7 Rb1 a1Q Na4 Be6 c8Q Bd7+ Qc6 Rc7 Ng3+ Re2 Bg2 Qh5 Re1 h1N Rd8 Qh4 e8Q Qh2 Qe7 Rc8 Qgf7 Rc7 Rh8 Rc8 Qd8 Nac7+ Ka5 Ne8 Kb5 Bg4 Qa8 Rc6 Qfb7 Bd7 Bf3 Bd4 Bg4 Re5 Bd1 Be3 Bc2+ Kd4 Nb2 Kc3 Nf5 Ng3 Re2 Ne4 Ng3 Ng5 Nh1 Nh3 Re1 Qa3 Ra1 Kd4 Bb1 Qd3 Rd1 Ke4 Ra3 Kf3 Rc3 Qf1 Rc2 Ree7 Re2 Bd2 Re6 Be3 Qab8 Ke2 Qe5 Rh5 Qf5 Reh7 Qe4 Re5 Re1+
3Nb2r/k2Q1RP1/1r2P3/r2Nq3/b1R1RpP1/QB2BP2/Bnn3K1/1Bq2n2 b - - 0 1 legal: proof: h4 b5 d4 a5 b4 e5 bxa5 g5 hxg5 b4 dxe5 b3 c3 Bb4 cxb4 Ra7 Qd6 Ra6 Qd1 Ra8 g4 c5 a4 f5 e4 h5 f3 d5 Kf2 Kd7 g6 Kc6 b5+ Kb7 a6+ Kb6 a7 b2 e6 h4 e7 c4 e8R c3 e5 h3 a5+ Kb7 g7 c2 a6+ Kb6 Bd3 f4 Nc3 b1B Be3+ d4 Nge2 h2 Kg2 c1Q Nd5+ Kc5 b6 Qf6 e6 Qe5 b7 Nh6 Ra4 Nc6 b8Q Nf5 Re7 Bc2 Qb3 Nb4 Qa3 Bd7 Rf7 Ng3 Re1 h1R Qd2 Rab8 a8B Rb6 a7 Be8 Bc4 R8h5 Bb3 Nf1 Bc6 Rf5 a8B Rh8 Bb5 Bd1 Bd3 Rfh5 Bh7 Kb5 Bb7 d3 Nd4+ Kc5 Ba2 Bb3 Qd1 d2 Nc6+ Kb5 Bhb1 Nc2 Re4 Ba4 Nd8 Ka5 Bc6 Ka6 Rc4 Rg5 Bg1 Rgh5 Ree4 Rf5 Bb7+ Ka7 Be3 Rfh5 Qe2 d1N Qed3 Nb2 Ba6+ Bad7 Bb5+ Kb8 Ba4 Ka7 Rf6 Rg5 B4b3+ Ba4 Rf7+ Qc7 Ne7 Ra5 Qd1 Qe5 Qd7+ Ka8 Nd5 Kb8 Nb7 Ka7 Nd8+
n3r2R/KQ3P1n/1Nb1QP1k/4PB2/1QRb2rn/3q3q/1pPqN1NB/1N6 b - - 0 1 illegal: No proof kernel
3Nq2k/q4pR1/2Q2n2/PKB1q1N1/2B5/1PNb1b1N/1nnPQP2/2rR1rB1 b - - 0 1 illegal: No extended proof kernel
1K2k2N/4Pqq1/NQ1r2P1/2Nq1R2/2PB1Rr1/p1b2n1B/2rP2bB/1B1n1Q2 b - - 0 1 illegal: No proof kernel
6Rr/2qP2PB/K1PR3Q/1np1B3/1qNB1q2/1b2P2Q/b1B2kRb/5Nnr b - - 0 1 illegal: No proof kernel
2r1Q1b1/2qPP1NB/5n1r/bk4N1/pR1Pn2q/qRr1BPNQ/8/N1R1K3 b - - 0 1 illegal: No possible last move, all moves rejected
B3N2Q/3PPbbr/2NrPR2/knRN2q1/2P2n1B/3Qb1p1/5q2/q1R2N1K b - - 0 1 illegal: No proof kernel
4N1B1/R1P1B2q/1PprQnbR/3Q3q/P1P5/1KB1nn1k/QbN2Q2/5rb1 b - - 0 1 illegal: No proof kernel
Nq3nRr/1bp2Brr/4b3/K1P2P2/QNP1bP2/B2Q2Q1/3kB1n1/BR3q2 b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 h4 b4 hxg5 b3 axb3 Na6 b4 Bg7 b5 Bc3 dxc3 Nb8 Kd2 Kf7 f4 d5 b4 e5 g4 a5 c5 h5 b6 a4 b7 a3 g6+ Ke7 g7 e4 g5 h4 g6 h3 Qa4 d4 Be2 h2 Nf3 a2 Rg1 h1B Na3 d3 Rb1 a1R Ne1 Nf6 g8Q Ng4 g7 Nd7 b8Q Rh7 Qbb5 Ne3 Nc4 Ng2 Nc2 Bb7 Nb6 Nf8 Ba3 Qb8 Qgb3 Ra2 g8B Rg7 Bf7 e3+ Kc1 Ra1 Kb2 d2 Qba6 d1B Qd3 Nh4 Rg3 Bhe4 Rg1 Rh7 Rg4 Ng2 Rg8 Ra6 Na8 Rg6 b5 Rgg7 b6 Rh8 Nb4 Rgh7 Beh5 e2 Bf3 e1Q Be2 Qf1 Qg3 Bbc6 b7 Kd7 Qc4 Bb3 Qcd3+ Bbd5 Kc2 Qa7 b8B Qb7 Ba7 Qb8 Qb3 Bb7 Bb6 Rg7 Ba5 Rhh7 Na6 Kc6 Qc4 Be6 Kb3 Ra2 Ka4 Rd2 B5b4 Rd1 Ka5 Rd2 Qc2 Rd8 Q4d3 Re8 Bb2 Rc8 Ba1 Re8 Qdf3 Kd5 Qa4 Rc8 Ba3 Rd8 Rb2 Re8 c4+ Kd4 Nb4 Rc8 Bd3 Kc3 Rb1+ Kd2 Be2 Re8 Qgf2 Re7 Qfb3 Rh8 Qfg3 Rgh7 Be8 Reg7 Bf7 Qc1 Qbf3 Qf1 Qd3+
r1b1K3/1PN3Br/BQQ1n1nr/b3Pp2/1P4n1/1QR3Q1/1q1P3N/R1N3qk b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 Ke4 g5 h4 a5 b4 f6 b6 a4 h6 a3 h5 g4 e6 Kd6 Kf5 a2 Kg6 Ke5 Kf7 Ke4 b7 g3 h7 g2 h6 c4 d6 f5 d7 c3 e7 c2 e8N Ra4 Nc7 Qf6+ Ke8 Bd6 d8Q Qb2 Rh3 Ra6 Rc3 Nc6 Nf3 g1Q Nh2 Nce7 e3 Ra8 Ba6 Ng6 Qe1 Bc5 Qg3 Bb6 Qdd6 Ba5 Qb6 Qb3 Bb2 c1N Qb5 Nd3 Qb6 Ndf4 Qc6+ Ke5 e4 Kd4 Na3 Ne6 Nc4 Qa3 Ne5 Qb3 Nd3 Nf6+ Kf7 Ng4 Nc1 Rg8 h8Q+ Rg7+ Ke8 Qa3 Qg8 Rh7 Rb1 a1R Qf7 Ra2 Ba1 Qb2 Qg8 Rf7 h7 Rd7 h8Q+ Rg7 Qh6 Rh7 Qe1 Ke5 Qhe3 Ra4 Qeb6 Kf4 Qd1 Ra3 Qb3 Ra2 Nd3+ Kg3 Nc1+ Kg2 Qg7 Ra4 Qe5 Kh1 Qg3 Qc2 Bb2 Ra3 Ra1 Qb1 Rc2 Ra4 Bg7 Qb2 Rc3 Ra2 Rf3 Ra3 e5 Rh6 Qbc4 Rd3 Qb3 Rd7 Bf6 Rdh7 Bg7 Qf1 Rd3+ Qg2 Rf3 Qg1 Rc3+
r5N1/PBPn4/k1pbR2Q/2BrQ1K1/2P1RN1P/8/rnq1RR2/bQ2qn2 b - - 0 1 illegal: No possible last move, all moves rejected
R7/pb1BnqqB/4P1r1/Q2Pn1Br/bRn2Q2/P1QQP1K1/4rN2/5Nk1 b - - 0 1 legal: proof: f4 c5 g4 h5 gxh5 d5 c4 e5 fxe5 Bf5 cxd5 c4 b4 Bc5 bxc5 Bc8 Kf2 Ke7 d4 b5 h4 g5 c6 f5 e3 b4 d6+ Ke6 d7 Kd5 h6 Ke4 e6 c3 c7 c2 a3 b3 h7 g4 d5 f4 h5 b2 h6 g3+ Kg2 f3+ Kh3 g2 Kg3 f2 Nh3 Qe8 d8Q Bb7 c8B Qf7 Bd7 Ne7 Qa5 Nbc6 Bd2 c1N Bc3 Nb3 Bf6 Ne5 Bg5 Rag8 Qe2 Rg6 Nd2+ Kf5 Rc1 b1B Rc8 Bc2 Ra8 g1Q+ Bg2 f1R Nf2 Bd1 Rh4 Re1 Nf1 Nd2 Rb4 Ba4 Qd1 Ndc4 Qd2 Re8 h8Q Re2 h7 Reg8 Qc3 Rh6 Qg7 Rh5 Qh6 Rg7 h8Q Rg6 Nh2 Qa1 Nf1 Qb2 Q8h7 Qa1 Nd1 Qb2 Bh3+ Ke4 Rb6 Nd3 Qd2 Qbg7 Rb4 Ne5 Qb2 Bac6 Qc3 Ba4 Qg8 Rf6 Qgh7+ Rf5 Qf6 Re1 Kh2 Kf3 Nf2 Re2 Qhg6 Qfg8 Qff7 Rf6 Qgd3 Q8f8 Bh4 Qfg8 Bf5 Rfh6 Qf6 Q8f7 Qg5 Rf6 Bh7 Rg6 Qh6 Rf5 Bf6 Rfg5 Kh3 Rf5 Kh4 Kg2 Qf4 Kg1 Kh3 Rh5+ Bh4 Ng4 Kg3 Nge5+ Bg5
3B4/N1Nb2kr/1Kp2b2/Q2R1n1q/3BR3/2b1PrPQ/P1bn1PR1/2bB2B1 b - - 0 1 illegal: No proof kernel
Q1Br2NB/1n5k/1P1n1pq1/2b2R1b/1r2B1n1/2K1PBNR/2P2QnP/N4n2 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 c5 a4 c4 axb5 c3 dxc3 Qg5 c4 Qf6 c5 Qd8 Kd2 a5 b4 d5 b6 g5 b5 g4 h6 f6 b7 Kf7 h7 Kg7 e3 d4 b6 a4 e6 g3 e7 a3 e8B d3 c6 g2 c7 a2 Qe1 Bg4 c8B Bh5 Bg6 Bc5 Qf2 Na6 b8Q Ne7 Ne2 g1N Ba3 Nf3+ Kc3 d2 Rg1 Qe8 Rg3 Ne1 Bg2 Nf5 Rh3 Nd6 B6e4 Qg6 Ng3 Rd8 h8N Kh7 Bgf3 Ng2 Nf7 Ra7 Nh6 d1N+ Kb3 Re7 Nd2 Re6 Rc1 Re5 Qa8 a1N+ Ka2 Nb3 Ng8 Rg5 Rb1 Rg4 Rc1 Nb2 Rf1 Nd3 Bb4 Ne5 Kb2 Rf4 Kc3 Ng4 Ba3 Nc7 Bb4 Nb7 Ba3 Ne8 Bb4 Nd4 Nb3 Ned6 Na1 Nb3 Rd1 Ne1 Rd5 Nd2 Rf5 Ng2 Ba5 Ba3 Bb4 Nf1 Bc5 Nc4 Be7 Bc5 Bf8 Ncd6 Bh6 Na5 Bg7 Nab7 Bd5 Re4 Bh8 Rb4 Bde4
n2b4/7r/P1R1P1Bn/1n3pn1/NQ1r2PQ/1B3PKB/2qB1n1R/1k1b2NQ b - - 0 1 legal: proof: d4 a5 h4 b5 b4 g5 hxg5 e5 bxa5 b4 dxe5 b3 cxb3 Ne7 b4 Ng8 b5 Bg7 Be3 Bh6 Bc1 Bf8 e4 Ke7 a4 Ke6 g3 c5 g6 d5 a6 h5 a5 h4 b6 c4 g7 d4 b7 h3 a7 c3 a6 c2 Bg2 h2 Ba3 c1N Qf3 d3 Kf1 d2 Nc3 d1N Rb1 Nh6 g8Q Qd3+ Ke1 Na2 Na4 Nac3 Rc1 Be7 Qg5 Qc2 Qh4 Nd7 b8Q Nb6 Bb4 Nb5 Bd2 Bd8 Bh3+ f5 g4 Rh7 Qg2 Ndc3 f3 Bd7 Kf2 Bc6 Qb7 Rb8 Qf1 Na8 Kg3 Bd5 Qd1 Bb3 Qe1 Rc8 Qb6+ Rc6 Qa5 Rc8 Qb4 Rc4 Qd1 Rd4 Qe1 Kd7 e6+ Kc6 e5 Kd5 e7 Ne4+ Kf4 Qc5 e8B Bd1 e6 Ng5+ Kg3 Qc4 Bg6 Qc2 Qf8 Kc4 Qb4+ Kd3 Qf1+ Be2 Qd1 Qb3 Qe1 Bd1 Rc6 Qc3 Qf1+ Kc2 Qe1 Nac7 a8B Qc5 Bb7 Na8 Rc7 Qc4 Bd5 Qc3 Bb3+ Kb1 Rc6 Qc2 Ne2 Rf4 Rf1 Re4 Ng1 Rd4 Rf2 h1N+ Kg2 Rf7 Re2 Nf2 Kg3 Rh7 Qf1 Nd3 Rh2 Nf2 Qg2 Rhd7 Qf1 Rf7 Qg2 Rh7 Qh1
6K1/b4N1n/pRP1r2r/Rb1qr1PN/PR5P/2QQk1n1/BQ3r1B/R2r4 b - - 0 1 illegal: No possible last move, all moves rejected
1Rnq1BQ1/3P1pnP/1b3r1r/k2K1P2/QN3b2/1B2b2B/3R1P2/bbQN3Q b - - 0 1 legal: proof: e4 d5 g4 a5 b4 h5 bxa5 d4 gxh5 d3 cxd3 Bh3 d4 Bc8 d5 Qd6 Nh3 Qd7 Ng1 Qf5 exf5 Rh7 Qc2 Rh6 Qd1 Rh8 Ke2 Kd7 Ke3 g5 Ke4 b5 h4 c5 a4 Kc7 d4 e5 a6 Kb6 d6 c4 h6 b4 d5 c3 h7 g4 d7 g3 a7 g2 h5 b3 h6 c2 d6 b2 Nf3 g1B Ra2 Bg7 Ne1 Nc6 Nc3 b1Q Kd5 e4 Bh3 e3 Ba3 c1B Rd2 e2 Nc2 e1B Nb4 Nd4 Qc2 Qb2 Nd1 Bh2 a5+ Kb5 d8Q Bf4 a6 Ne6 d7 Qf6 Qdc7 Bb7+ Q7c6+ Ka5 Qb2 Rb8 a8B Qd8 a7 Ba6 Qbc2 Bd3 Bb7 Ba1 a8Q+ Ba6 Rg1 Ng7 Rg3 Rc8 Rb3 Rc7 Qc8 Bd3 Ba6 Ra7 Bc4 Ra6 Rb2 Be3 Bb3 Bf4 Q2c4 Bb1 Qe4 Rb6 Qh1 Ra6 Rd4 Bce3 Rdd2 Rb6 Qc1 Rf6 Q8c6 Re6 Nc2 Rg6 Bf8 Rf6 Nb4 Ne7+ Kc4 Rg8 h8Q Nc8 h7 Bb6 Kd5 Rh6 Re2 Bed2 Re8 Bde3 Rd2 Nh5 Qg7 Rf6 Qg5 Rgg6 Qg4 Rh6 Qg8 Qc7 Rd8 Ng7 Re8 Nd6 Rc8 Qd8 Rb8 Nc8 Qa4#
1KB1r2N/P5n1/6p1/1N2QR1N/1Bn1r2B/1q1P1P2/P1B1nRbn/k1b2n1Q b - - 0 1 illegal: No proof kernel
1Bk3KR/PR4P1/1br1r2Q/2q1n3/nrp1BNN1/1b1RQ2P/1r2rPN1/6N1 b - - 0 1 illegal: No proof kernel
R1N1n1nR/4Nq1r/2kr2PP/5rpB/1PP2Q2/br5Q/2nR1B2/3K1BBb b - - 0 1 illegal: No proof kernel
bkr2bNn/3R3Q/B1P5/1nQ2Pp1/PRr1N1b1/2R1P3/nB1N1n2/3q1NK1 b - - 0 1 illegal: No proof kernel
N1r4R/5qk1/n1P3N1/pP1B2KN/Pn1BQ2r/1QP5/n1RB1b2/1b1b2Nb b - - 0 1 legal: proof: e4 b5 h4 g5 hxg5 c5 d4 f5 dxc5 b4 exf5 b3 Qd5 Qb6 Qxb3 Qc7 Qb7 Qd8 Ke2 Kf7 Ke3 e5 b4 h5 a4 a5 f4 h4 g4 h3 g6+ Kg7 f6+ Kh6 g7 d5 b5 h2 f7 e4 g5+ Kg6 f5+ Kh7 Kf4 d4 c3 d3 f6 d2 g6+ Kh6 Na3 d1B Bc4 e3 Ra2 e2 Rc2 e1N Bd5 Ne7 g8Q Bdg4 g7 Bcd7 Bd2 Qe8 Nc4 Bd1 Nb6 Na6 c6 Rc8 Na8 Kg6 Qc7 B7g4 Qe5 Bf5 Qe4 Rh6 Qh8 Rh7 g8N Bg7 f8B Qf7 Qb4 Rh3 Qh4 Bd3 Qb3 Bh6+ Ke5 Be3 Bg7 Bf2 Kf4 Bf5 Qg4+ Kh7 Qg2 Nd3+ Kg5 Rh4 Qe4 Ndb4 Bh8 Na2 Bg7 Qe6 f7 Qd7 Be5 Qa7 Nf6+ Kg7 f8N Qd7 Bg8 Nd5 Bd4 Ndb4 Ng6 Qa7 Bd5 Qf7 Nh3 Bf3 Ra1 h1B Ng1 Bh5 Re1 Bhg4 Re3 Bd1 Rh3 Rf4 Rh6 Rh4 Rh8 Rh3 Qe6 Nd3 Rc1 Ndb4 Qe2 Bb1 Rc2 Rh7 Qe4 Rh4 Nh5#
1r3BQ1/3r1R1K/1P5Q/2b1RB1R/Rb1npN1q/B2NPr2/rP1P3n/1nk5 b - - 0 1 illegal: Other
2bNnbq1/n4r2/bpP2Rk1/1PN2N2/K2B4/QN5b/1PQrQP2/1R2r2B b - - 0 1 illegal: No possible last move, all moves rejected
4RN2/5bQP/k2r3B/nN4P1/P1BNR2q/P1K1Np1r/2Q1r2b/nB1b3b b - - 0 1 illegal: No proof kernel
3Q1r2/1rnk2P1/2br1RPR/1Bp1q2Q/K2bNPR1/2N4Q/3BPr1n/1n1R4 b - - 0 1 illegal: No proof kernel
Nrb2nn1/5Pk1/B1RP2P1/3Qbr2/2b1QN1n/2BqB3/1p4PB/R2N1nK1 b - - 0 1 illegal: No proof kernel
N1bNB3/b3P3/1R1Pr3/QBK3p1/1NnBk1b1/1rQ2q1r/2P3P1/n1N1Rb2 b - - 0 1 illegal: No proof kernel
1kB2b2/4PKPN/Q4BQr/pB1RQ2P/1q1n1P2/b1Q4R/b2n2r1/5nNn b - - 0 1 illegal: No proof kernel
1Q2N1N1/3kpr2/3PNQ2/K1BP1r1P/2b2BPn/1R3r1b/1R1B1b1q/n3b2B b - - 0 1 illegal: No proof kernel
R1rN4/QBBPb2r/3q4/1knN3P/4Q1Pr/1pQ1KP2/bn2nr2/Q3R1B1 b - - 0 1 illegal: No proof kernel
5br1/K1PrP1P1/2NR3r/N2Q1n1B/B2PQ3/1b1n1Rq1/pBkn1R2/5n1R b - - 0 1 illegal: No proof kernel
2RnQ2R/PnNr2r1/3P1kB1/7B/r4b1K/2B2P2/RNP1br1p/2qBQ2b b - - 0 1 illegal: No proof kernel
2Q1K2R/P1R1bn2/2P2b2/7p/1n1BPN1q/1kn1rPNN/1rbRQ3/1n1B3R b - - 0 1 illegal: No proof kernel
2qBb1B1/1RN3KQ/Qn1B2n1/1r1R2rk/2NrBrR1/5P1P/P1p2P1b/2q5 b - - 0 1 illegal: No possible last move, all moves rejected
bn6/2B5/NQ2N1NP/rRP3R1/q3Pq2/b5bK/BnBk1Pp1/4rQbB b - - 0 1 illegal: No proof kernel
1rb1n3/1NR2NRr/1Q3p2/1rqNB2P/PqrQ4/3B1PP1/3bR3/k1nK3N b - - 0 1 illegal: No proof kernel
Nn1Kb1B1/6Br/N3pR2/1PQ3rr/3N1k2/PPn1bPNR/4q3/1Q1qr1Q1 b - - 0 1 illegal: No proof kernel
1K2Q1Qn/1N6/PprRB1bP/2P4P/4q3/1N1q2k1/1r1B1R1b/Q1bnNbN1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 Kb5 d5 h4 g5 c4 d4 f4+ Ke4 a4 e5 h6 g4 f6 b6 f7 d3 f5 d2 h5 Kf4 f6 g3 a6 e4 a5 g2 a7 e3 a6 e2 c6 e1B c5 Ne7 c7 Nf5 Bc4 Kg3 Na3 Rg8 Ra2 Ne3 Be6 Bd6 f8Q Nc6 f7 Ne7 Nc2 Ng6 Kc6 Nh8 Qe8 Bd7+ Kb7 Rc8 f8N Bb5 a8Q Bf1 Rb2 Rg4 Rh4 Rb4 Rd4 Be5 Ra2 Rb2 Rd6 Bf2 Qe1 d1B Bd2 Bde2 Qb8 Bd3 Qa1 Nd1 Ne1 Be3 Qa8 Bg6 Ka7 Rb8 c8N Qh4 Qd5 Qe4 Qb3 Rb7+ Ka8 Rc7+ Kb8 Rc6 Qc4 Kf2 Qd5 Bh2 Qg5 Bf5 Qg8 Bh7 Ng6 Qd3 Ne5 Bg6 N5f3 Kg3 Nd4 Bg5 Nb3 Bf4 Ba5 Bc1 Bd2 Qe4 Rd8 Qd3 Nd6 Qe4 Nb7 Qd3 Nh3 g1Q Rd6 Qgd4 Ng1 Q4e4 Ba5 Rb1 Rf2 Rb2 Bd2
2R1n3/B2rQ1PK/1PkPR3/1p1qPQN1/8/Bq3Nb1/4rQn1/qbqB2B1 b - - 0 1 illegal: No proof kernel
rQR5/1bQ1b1PP/k3n2K/n3BP1N/qB1q2PN/3R3n/1Bp3B1/3Rr1n1 b - - 0 1 illegal: No proof kernel
1KnN4/3RqNpr/Q1BP2kQ/1P2BqbR/P2Q1P2/4n3/2r2BQ1/1b1n3n b - - 0 1 illegal: No possible last move
2rq4/Q1B1nPQB/1bP2nnB/1Nr2pR1/PP5N/1N4k1/b1nq4/3R2BK b - - 0 1 illegal: No possible last move
R7/3PqBK1/Qnb1N3/1bQ1p3/1qQQ1N2/P1B1PkP1/6r1/rn1N1rrR b - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 a5 b4 Nc6 bxa5 Bh6 h4 Nb8 hxg5 Bg7 Ba3 Be5 Bc1 Bg3 fxg3 Be6 Rh2 Bd7 Rh1 Bc8 Kf2 Kd7 Ke3 Kd6 Ke4 f5+ Kd4 b5 e3 h5 d3 f4 a6 h4 a7 h3 g6 b4 g7 f3 g5 f2 g6 b3 Bd2 h2 Ne2 b2 Nbc3 b1Q Nf4 Nf6 g8Q Ne4 g7 Nd7 Qf8 Nb6 g8Q Bd7 Bh3 f1B Be6 Bc6 Bf7 Qb2 Be1 Nd2 Qdg4 Qb5 Nd1 Nb1 Bc3 Qe8 Ke4 Qb4+ d4 Bfb5 Kf5 Rh3 Kg6 Qd7 Qd8 e5 Qc8 Qe7 Kg7 Rh6 Qa6 Rf8 a8Q Rf6 Re1 h1R Q8a7 Rg1 Qh4 Rg2 Rh1 Ra8 Qgc8 Ba4 Qc4 Bab5 Qaa6 Ra7 Ng6 Rf1 Nf4 Bb7 Qf8 c5 Qc8 B7c6 Qf8 Kd7 d6 Rfg1 d5 Ra8 Qd4 c4 Bd2 c3 Qc4 c2 Bc3 c1R Qd4 Re8 Qc4 Kd8 d7 Kc7 d8N Kd6 Nde6 Ra8 Nb2 Rcf1 Nd1 Kd7 d6 Bf3 Qe2 Kc6 d7 Kd6 Nd3 Kd5 Ndf4+ Ke4 Qc4+ Kf5 Qfc8 Bd5 Q8c5 Bdc6 Qh7+ Kg4 Qhd3 Kf3 Qdd4 Rh8 a3 Rf8 Ra2 Rh8 Rc2 Rhh2 Rc1 Ra2 Rc2 Ra1 Rc1 Rha2 Rc2 Rb2 Rch2 Rba2 Rh8 Rag2 Ra8
r1qk2q1/n1bP1qn1/1B1r2PR/PRRR1B2/8/1p1NB1qP/bQ3Q2/K3N3 b - - 0 1 illegal: No proof kernel
1Q2r1N1/3P4/b2pB2P/1Pb1R3/K2nrq1r/PN2nBBq/1k2N1Q1/1r2R1N1 b - - 0 1 illegal: No proof kernel
1BB1BnRR/NbP5/R1b1bnk1/2N5/3QPP2/b3P1qq/rp3r2/1R1K3Q b - - 0 1 illegal: No possible last move, all moves rejected
2qBn1b1/R1P1q1NP/2Br2pr/1Q1N1QN1/R3PB2/Nn2P1b1/K3k1r1/5r2 b - - 0 1 legal: proof: g4 c5 d4 b5 dxc5 h5 gxh5 e5 a4 e4 axb5 e3 fxe3 Nh6 e4 Ng8 Kd2 Ke7 Kc3 Ke6 Kb3 Ke5 c4 a5 h4 f5 c6 d5 h6 f4 h7 a4+ Ka2 d4 b4 g6 b6 a3 b5 d3 c7 Kd4 c5 f3 h5 f2 c6 d2 b7 Ke3 b6 Qh4 h6 Bg7 Nh3 Nd7 b8Q Ra7 b7 Nf8 Ng5 Nd7 Ne6 Bf8 Ng7 Be7 Bh3 Ra8 Qf1 Nc5 Bd7 Bf8 Bb2 d1R Bf6 Nb3 Bd8 Rd3 Be8 Be6 c8N Ra7 Ne7 Nf6 Rh2 Bg8 Nd5+ Kd4 Rh3 Bd6 e3+ Kc4 Qc8 Bg3 b8B Qg5 Qe2 f1R Bf4 Qh4 Bd7 Ne8 c7 Qf6 Rh2 Qe7 Bc6 Ra6 Qb2 Rd2 Qf5 Kd3 Re2 Rc2 Re1 Rg2 Rc1 Nd2 Rc4 Ke2 Ra4 Rb6 Ba8 Rd6 Bc6 Bf7 Qb8 Nb3 Qb7 Rf8 h8N Bg8 Qb4 Rh1 h7 Rh6 Qh3 Rff6 Nf7 Rf5 Ng5 Rf8 Be5 Rf1 Bf4 Bf2 Ra7 Rd1 Qf5 Bg3 Qb8 Nd2 Qb7 Rf1 Qb5+ Nc4 Kb3 a2 Qb8 Nd2+ Ka3 Nb3 Nd2 Rf3 Nc4 Rf1 Qb5 Rh4 Rd1 Rh6 Rd4 a1Q+ Kb4 Qe1+ Ka3 Qa5+ Kb2 Qa6 Na3+ Kf2 Ka2 Qc8 Rc4 Ke2 Rca4+
3kqRB1/1Pr3n1/3rNPQr/P4Q2/P3nB2/q3Rr2/Rp1BB3/3bK1bN b - - 0 1 illegal: No proof kernel
NbB1K3/PR6/k1nB1NQ1/q2n1P2/b2q1PR1/2rB1r1Q/1qp1PB1R/6q1 b - - 0 1 illegal: No proof kernel
2Nr1Br1/Pr1q1rRp/Q2nPP2/2BB4/1PN1QRq1/1n5b/k3BK2/2b2R2 b - - 0 1 illegal: No proof kernel
2QK4/PR4P1/2P1rB1n/2Nnb1bk/1Q2rR2/1b4q1/bp2BP1q/2RNQ1R1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 c5 h4 c4 hxg5 c3 dxc3 Ra6 c4 Ra7 c5 Ra8 Ke2 Kf7 Kd3 d5 Kd4 b5 Ke5 h5 a4 d4 c4 d3 g4 b4 f6 Kg6 c6 b3 c5 d2 a6 e6 f7 b2 a5 h4 c7 h3 c6 h2 a7 Qe8 a6 Qd7 Ra4 Nh6 Nc3 Rg8 Be2 Bb7 c8Q Qd3 Ne4 Be7 Qe1 d1B f8Q Bb3 Nc5 Qg3+ Rf4 Bd8 Kd6 e5 Bd2 e4 Bc3 e3 Bf6 Nd7 Qe7 Rb8 a8R Nb6 a7 Nd5 Kd7 Ba6 Qd6 Rb4 Rb8 Bc7 Rb7 Bac4 Qdf8 Be5 Kd8 Rg7 Qd6 Ba2 Qdb8 Bcb3 Qd6 Re4 Qdb8 Kh7 g6+ Kg8 g5 Re7 g7 Kf7 Qd6 Kg6 Qdb8 Re6 Qd6 Qg4 g8R+ Kh5 g6 Qf3 Nd3 Qg4 Qdb4 Qf3 Nc5 Qg4 Nf3 Qg3 Rg1 h1Q Nh2+ Qhf3 Nf1 Qh2 g7 Qg4 Re8 Qf3 Bb5 e2 Ne3 Qfg2 Nd1 Qgg3 Qed2 e1B Be2+ Ng4 Qdc3 Bd2 Ree7 Bc1 Qe1 Be3 Rf3 Bh6 Rf4 Bg5 Red7 Ne3 Rd3 Nd5 Rdf3 Nh6 Rc3+ Qg4 Rc1 Qf3 Ba6 Qfg3 Be2+
RR6/rp1nn3/BPNN3P/2rkn1R1/1R2Q2b/1P1nB1NP/3q4/1q1Q2nK b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 d5 gxh5 d4 b4 d3 cxd3 Rh7 d4 Rh8 d5 Bd7 Nh3 Ba4 Ng1 Bb3 axb3 Rh6 Qc2 Rh7 Qd1 Rh8 f4 Kf7 Kf2 c5 Kg2 g5 d4 e5 f6 a5 d6 Ke6 f7 c4 d7 c3 b5 g4 h6 g3 f5+ Kd6 h3 a4 f6 c2 b6 e4 d5 a3 Nc3 e3 Nb5+ Ke5 d6 e2 Be3 Be7 f8R c1N f7 a2 Qd5+ Kf6 Qe4 Nd3 Rc1 a1Q Rc4 Qd1 Rb4 Ra7 Re8 Ne5 f8R+ Ke6 Rh2 e1N+ Kh1 Qf3+ Rg2 Qd1 Ne2 Qb1 Rg1 Nd3 Rg2 Qc7 d8Q Qcc1 d7 Qd2 Nd6 Rh7 Rgf2 Rg7 R2f5 Rg6 Rg5 g2+ Kh2 g1N Kh1 Rf6 Ng3 Rf5 Be2 Nc1 Ba6 Nd3 Qg4 Kd5 Qd1 Bf6 Qe7 Bh8 d8N Nbd7 Qh7 Ne7 Nc6 Bg7 Ra8 Bf6 Rh5 Bh4 Rfb8 Rf4 Qf5 Rc4 Rg5 Rc5 Qe4+
2brrQr1/7P/NRb1b3/b2Nqn1Q/2pRPB2/k1P2RP1/qR5N/4K2B b - - 0 1 legal: proof: a4 e5 d4 b5 dxe5 g5 axb5 h5 Nh3 Na6 Ng1 Nc5 g3 Ne4 g4 Ng3 gxh5 g4 Ra2 Nf5 Ra1 g3 Be3 g2 Bc1 Ng3 fxg3 Qe7 Kf2 Qg5 Ke1 Qd8 e4 Ke7 h4 c5 b4 d5 h6 f5 b6 a5 b5 a4 e6 Kd6 b7 c4 b8R Kc5 e7 Kb4 e8Q a3 h7 d4 b6 d3 h5 a2 b7 f4 h6 f3 Bf4 f2+ Kd2 Qc7 Nf3 g1R Rh2 Ne7 Bg2 f1B Bh1 Qe5 Ke1 Nf5 Nc3 Ka3 Nd5 Bb4+ c3 Ba5 Rb2 Rg8 h8R Be6 Rc1 a1Q h7 Qa2 Nh2 Bc8 Qdh5 d2+ Kf2 d1B Ke1 Ba4 Rd1 Rg2 Rd4 Rd2 Qd8 Re8 Rf8 Bh3 Rf6 Rd3 Rfb6 Bc6 Qf6 Bb4 Qf8 Be6 Rd8 Bc8 Rd6 Ba5 b8N Bg4 Na6 Be6 Qfh6 Rg8 Qf8 Re8 Ndb4 Rd2 Rd3 Bh3 Rf3 Bg4 Rd7 Rd6 Nd5 Bh3 Re7 Rdd8 Rd7+ Nd6 R2b4 Beg4 Rb2 Bf5 Ndb4 Bhg4 Rc7 Bc8 Rg7 Bge6 Rd7 Nf5 Rd4 Qb8 Nd5+ Qd6 Ne7 Qe5 Nd5+
bk4nq/3K1P1B/pRQ2b2/P1r4b/qQ3B2/PQqNB3/1RP3qB/N1r5 b - - 0 1 illegal: No possible last move
2Q2rqq/PqbKQbk1/4R3/PQ2R2N/1B1RRp1r/2rP1r2/4NPB1/1n6 b - - 0 1 legal: proof: c4 h5 g4 d5 cxd5 a5 gxh5 a4 d4 a3 bxa3 Nd7 a4 Nc5 a5 Nd3+ exd3 Ra6 Ke2 Ra7 Ke1 Ra8 Kd2 e5 Ke3 b5 Ke4 g5 h4 c5 a4 b4 d6 f5+ Kd5 Kf7 Kc6 e4 d7 c4 d5 e3 h6 e2 d6 e1R h7 b3 a6 b2 h5 g4 a7 g3 h6 f4 a5 g2 Qh5+ Kf6 Nc3 b1Q Ba3 Qe7 d8R Qb2 d7 Re3 Bb4 Rf3 Nge2 g1Q Re1 Qf7 Rh4 Bd6 Qb5 Bc7 Ng3 Ba6 Nce2 c3 Rh1 c2 Rh5 c1R+ Rc5 Qe7 Bg2 Rc3 Nh5+ Kf7 Re8 Nf6 d8R Ne4 Rd4 Nd2 Rcc4 Qe5 Kd7 Nb1 Re6 Raf8 Re4 Qf6 Rcd4 Bb7 R6e5 Bd5 Re6 Kg6 R6e5 Bf7 Re6 Rhg8 h8Q Qb3 h7 Qd5+ Bd6 Qb7 Bb4 Kh6 R6e5 Rg4 Qg8 Qh8 Re6+ Bg6 Qf7 Rh4 Qe7 Rfh3 R6e5 Bf7 Bf3 Qgg8 Bg2 Qhg7 h8Q+ Kg6 Qd8 Rf3 Qc8 Qh6 Qf6+ Kh7 Qe7 Kg6 Rc1 Qhh8 Rc2 Ra3 Rcc5 Rc3 Re6+ Kh7 Nf6+ Kg6 Rce5 Kg7 Nh5+
nBN3nb/bPnP1Q2/B2Rp3/kN6/1rbRP2R/2QR1PK1/4q3/b2q2Q1 b - - 0 1 legal: proof: g4 d5 h4 g5 a4 b5 axb5 a5 c4 f5 gxf5 g4 cxd5 Ra6 Rh3 Rg6 Rh1 Rg5 hxg5 Bd7 Na3 Be6 Nb1 Bc8 d4 Kd7 e4 c5 b4 Kc7 g6 Kb6 f3 h5 Kf2 a4 f6 c4 d6 h4 d5 a3 d7 h3 d6 h2 g7 e6 f7 a2 Nh3 c3 Ng5 c2 Qd2 Rh3 Qc3 Qe7 d8R Rh5 Na3 Qf6 Bf4 c1N Kg3 Nb3 Rd1 a1B Rd4 Nc5 Bd3 Be7 f8Q Ncd7 Nf7 Na6 Rd1 h1Q Qe8 Nh6 g8Q Nc7 Be2 Qg7 R1d3 Qd1 Qef8 Bf6 Bf1 Ka7 b6+ Ka6 b7 Rb5 b8R Nb6 d7 Qg6 Nd6 Bh8 Qff7 Nba8 Be2 Bb7 Nc8 Bd5 Bd6 Rb6 Nb5 Bc4 Qgg7 Ng8 Rb7 Nd5 Bb8 Ndc7 Rd6 Qh5 Qgd4 Qg5 Qg1 Qe3 Bf1 Qee2 R6d4 Nd5 Rc7 Rb7 Rc6+ Rb6 Rd6 Ndc7 Kh4 g3 Re8 g2 Kg3 Nf6 Rd8 Nfd5 Rg8 Nf6 Rg4 Ng8 Qh2 g1B Rh4 Be3 Qg1 Rc6 R4d5 Ba7 R5d4 Ba2 Na3 Bc4 b5+ Kb7 b6 Ka6 b7 Rb6 Qc2 Ka5 Qc3+ Rb4 Nb5 Ba2 Rd2 Qe3 Bc4 Qee2 R2d3 Bb3 Na3 Ba2 Ba6 Bc4 Nb5
1B1N2b1/2qnN3/knbRQ1QP/1B1b2r1/4pn1b/2P4P/1B1KP2B/R4q1N b - - 0 1 legal: proof: f4 c5 d4 b5 dxc5 h5 a4 a5 axb5 e5 g4 e4 gxh5 Ra6 Qd5 Re6 Qd1 Re5 fxe5 Ba6 Ra2 Bb7 Ra1 Bc8 b4 d5 c6 f5 c3 g5 e6 a4 h6 g4 c7 d4 e7 Kd7 e8N a3 b6 Kc6 b7 Kb5 Bd2 f4 Be3 d3 Nd6+ Ka6 Bh3 a2 Na3 g3 Nc2 g2 Nf5 f3 Ne7 f2+ Kd2 f1B Bd7 Nf6 Nd4 Rg8 Ba4 Nbd7 b8B Nd5 Ndc6 Bb7 c8Q N5b6 Nh3 g1N Nf2 Qc7 Nd8 Bh3 Qf1 Rg5 Qg2 Be6 b5+ Ka5 Qg4 Nh3 Rhd1 Nf4 h3 Bbd5 Nh1 Bg8 Qe6 Bg7 Qg6 Bf6 Bc5 Bc6 Ba3 Bgd5 Bb2 Bg8 Rac1 a1Q Rb1 Rg3 Rbc1 Bh4 Rb1 Rg5 Rbc1 Na8 b6 Bgd5 b7 Ka6 Rb1 Nab6 Rbc1 Qa2 Ra1 Qb1 Rg1 Qf1 Rd1 Nc5 Qce6 Ncd7 Ra1 Qf3 Rgd1 Qf1 Kc1 d2+ Kc2 Qc8 Be5 Qc7 b8B Ng2 Bh2 Nf4 Rdc1 d1B+ Kd2 B1b3 Rd1 Ba8 Ke3 Bdc6 Rd6 Bcd5 Kd2 Bac6 Qef5 Bg8 Qfe6 Bbd5 Bb5+
2q1qq2/P2P1b1Q/B2qR3/k3RN2/pb1n1r2/B1P2N2/PQB1Bb2/2n2Q1K b - - 0 1 illegal: No proof kernel
4qq2/1pb1R1Qr/b2bn3/B5P1/3P2qN/2b2PN1/BPr1QB1R/2QK1Bk1 b - - 0 1 illegal: No proof kernel
5bRB/1N2Pn1q/3PQ1n1/kbr2BPp/1N5P/Nb2b1bR/1Q2NRb1/K7 b - - 0 1 legal: proof: d4 d5 a4 a5 c4 e5 dxe5 g5 f4 b5 axb5 d4 fxg5 Ra6 Ra4 Rd6 Ra1 Rd5 cxd5 Bd6 Bd2 Ba3 Bc1 Bf8 Kd2 Kd7 Kc2 f5 g4 h5 h4 c5 e4 Kc7 b4 Kb6 Kb2 f4 g6 f3 g5 a4 g7 d3 e6 d2 e7 c4 e8Q f2 e5 Bc5 e6 Qd6 Ra2 a3+ Ka1 c3 Rh3 c2 Bb2 c1B Ne2 Rh7 Qb3 Ne7 g8R d1B Bh8 B1e3 Qb2 Qd7 d6 Nbc6 Bg2 f1B Be4 Ne5 Bf5 Bb7 Qf7 N7g6 e7 Bbg2 Qe6 Rf7 Rd8 Bb3 Rg8 Kb7 b6 Ka6 b5+ Ka5 b7 Qe8 Bd3 Rf5 b8N Qf7 b6 Qh7 b7 Nf7 Na6 Ba7 b8N Rc5 Bc2 Bf4 Bf5 Bg3 Nb4 Bb6 Nc1 Bb5 Ne2 Ba7 Qbe5 Bb6 Rb2 a2 Na3 Rc7 Rd2 Be3 Qg7 Rc5 N8c6+ Kb6 Nd8 Ka5 Kb2 a1B+ Kb1 Bad4 Rb2 Bef4 Ka1 Bde3 Qd4 Be5 Rd2 Bg7 Qb2 Bd7 Ng1 Be8 Rf2 Bb5 Ne2 Bf8 Nb7+
1b2R1n1/2b1pRRK/4rrN1/6P1/BB2Pb1P/3nP2k/1R1Qr2N/2Nn2Qb b - - 0 1 illegal: No proof kernel
4QQ2/p1Pn3K/2P1R1P1/1Nkn1r1R/Pbr2b2/Q1B3NQ/bn2r2n/R4B2 b - - 0 1 legal: proof: g4 c5 h4 g5 b4 e5 bxc5 f5 gxf5 g4 d4 Na6 dxe5 Qg5 hxg5 Nb8 Kd2 Ke7 Ke3 b5 Kf4 h5 a4 d5 e4 d4 c4 b4 e6 d3 c6 Kd6 g6 h4 Kg5 g3 f4 b3 f6 b2 f5 d2 e5+ Kc5 e7 g2 e8R h3 c7 h2 f7 Nf6 e6 Ng4 e7 Nd7 f6 Rh4 Na3 b1N Qb3 d1N Ne2 g1B Bd2 Nb2 Qh3 Nc3 Nb5 Nd5 Bc3 Bf2 Ng3 Be3+ Kf5 Bd2 Ke6 Bfh6 f8Q Bhf4 Kf7 Rh5 Kg8 Rf5 f7 Be1 Bf6 Bb4 Kh7 Rb8 Be5 Rb6 Bc3 Re6 Qg2 Re2 Qh3 Kc6 c5 Ba6 Rg1 h1R Rg2 Nh2 Rf2 Kb7 c6+ Kb6 Rf3 Rg1 Re3 Rgg2 Re6 Kc5 Rc8 Re4 Ra8 Rc4 e8Q+ Kb6 Qd6 Re2 f8Q Ne7 Qd1 Nd5 Qb3 Bc8 Qa3 Ba6 Nd6 Kc5 Rc8 Rce4 Rb8 Bc4 Ra8 Ba2 Nb5+ Ne7 Rb8 Rc4 Rd8 Ne5 Rd3 Nd7 Rdd6 Nd5 Re5 Rf6 Rh5 Rf5 Re6+
2NBb2b/1R3k2/B2n1nr1/1P3PQN/1B3pQP/3RbNNq/5P1n/1b1Kn3 b - - 0 1 legal: proof: e4 c5 a4 h5 g4 b5 gxh5 f5 d4 f4 axb5 a5 dxc5 Ra6 Bd2 Rf6 Bc1 Rf5 exf5 Rh7 Qg4 Rh6 Qd1 Rh8 h4 g5 b4 d5 c4 e5 h6 e4 h7 d4 c6 d3 c7 g4 b6 g3 b5 a4 b7 a3 c5 g2 c6 a2 Qg4 e3 Ne2 g1N Bd2 Nh6 Rh3 Nf7 Ng3 e2 Bg2 Bc5 Bb4 Nd7 b8N Be3 Nd2 Nf6 Nd7 Nd6 Nf3 Rg8 h8B Kf7 Bg7 Bb7 c8N Qf8 c7 Be4 Bh6 Rg6 Bg5 Qg7 Rc1 a1B Rc6 Qh8 Rb6 Bc6 Rb7 Qg8 Nf8 Be8 Ne6 Qf8 Ng7 Qe7 Ne4 Qe6 Ng3 Qb3 N7h5 Qc4 Rh1 Bad4 Rb8 Ng8 Nh2 Ba7 Ne7 Bad4 c8Q Bh8 Bb7 Qd5 Qd7 Qg2 Qd8 Qh3 Nc8 Ba7 Kd2 Nf3+ Kc1 d2+ Kc2 Bc5 Ba6 d1B+ Kc1 Ba4 Rd1 e1N Rd3 Bc2 Rb6 Bb1 Kd1 Bcd4 Be7 Be3 Rb7 Nd2 Nf3 Nf1 Qc7 Nh2 Bd8+ Kf8 Qh7 Nf6 Qh6+ Kg8 Qhg5 Kf8 Be7+ Kf7 Bd8+
3R4/n1r1Q1rn/pR2Q2b/3P2P1/Q1n1P1r1/P1NB1k1r/2KBqN1R/2n1Q3 b - - 0 1 legal: proof: h4 d5 e4 e5 exd5 g5 hxg5 c5 b4 e4 bxc5 e3 f3 Bh3 Ba3 Bf5 Bc1 Be4 fxe4 Qe7 Bc4 Qf6 Bf1 Qd8 g4 Kd7 d4 b5 c4 h5 c6+ Kd6 a3 f5 g6 e2 Kd2 e1N g5 b4 c7 b3 c8Q h4 g7 b2 Nh3 a6 Rg1 f4 Qf5 f3 Rg2 f2 Rh2 Nf6 g8Q Rh7 Qb3 Nc6 Qc2 Na7 Qh8 Rc8 Bd3 f1N+ Kd1 Nd2 Nc3 b1R Qa4 Bh6 Nf2 h3 Qhe8 Rg7 Qf7 Rb2 Rb1 Nh7 Qfe8 Rc2 Rb6+ Rc6 Qff7 Qd7 Qf3 Qg4 Qe2 Ra2 Bc2 Nd3 c5+ Kc7 Qe6 Nc4 Bd2 Nc1 Bd3 Qg2 Qe1 Qf1 Rb2 Qe2+ Kc2 Ra1 Rb6 Rb1 Rg2 h2 Qf6 h1R d6+ Kd7 d5 Rh3 Rh2 Rb3 Qe5 Rg3 Qf6 Rg4 Qf7+ Kc8 Qf6 Rcc7 Qe5 Kd8 c6 Kc8 d7+ Kd8 Qg3 Ke7 d8R Kf7 Qe5 Kg6 Nh3 Kh5 Qe7 Rf4 Nf2+ Rh4 Nh3 Kg4 Nf2+ Kf3 Ng4 Rb7 c7 Rh3 c8Q Rc7 Nf2 Rg3 Qc6 Rg4 Q8e6 Rg2 Nb1 Rg4 Qb5 Kg3 Qa4 Qf1 Be2 Re3 Bd3 Qe2 Rh5 Kg2 Rh1 Rh3 Nc3 Kf3 Rh2
1n1QB1b1/5rNP/N5Pk/1R4b1/1pN1B3/bP2QPKn/bR4BB/1bb2r2 b - - 0 1 illegal: No proof kernel
2n3n1/4rrQ1/R1NQB1Pq/1r6/1bQ1p1P1/Bp1NP3/2bPQ1KB/kn5R b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra7 f4 Ra8 fxg5 Ra6 h4 Ra7 g4 Qd6 h5 Qg6 hxg6 Ra8 Kf2 Kd7 a4 Kd6 e3 Kc5 a6 Kb4 a7 c5 g7 f5 d6 h5 g6 b5 a5 e5 d7 f4 d8B f3 a6 h4 Bc4 h3 Kg3 f2 Ra2 f1R Bb2 h2 Nf3 Rh7 Ba1 Bf5 Ne1 Nd7 Qf3 Rb8 a8Q Nb6 a7 Bc2 Bd4 e4 Na3 Nc8 Qe2 Rf7 Be6 c4 Qd5 Kb3 a8Q b4 Be5 Rb5 Qa7 Bc5 Bd6 Re7 Ra1 Kb2 Kg2 c3 B8c7 b3 Qa4 Rf7 Qac4 Bb4 Bf8 Re7 Qd6 Rf7 Nb1 Re7 Ra6 Rf7 Na3 Ka1 Rg1 h1N Be7 Nf2 Nd3+ Nd1 Rf1 Bb1 Bf8 c2 Rh1 c1Q Be7 Bc2 Bb8 Nf6 g8Q Nc3 Qg7 Nb1 Bf8 Qb2 Be7 Ng8 Bf8 Ra5 Nb5 Qe5 Nd4 Qf4 Qd7 Qg5 Bh2 Qh6 Bc5 Re7 Qd6 Rf7 Qgf8 Re7 Nc6 Rhf7 Qg7+ Bc3 Ba3 Rb5 Nce5 Bb4 Nc6+
K2n3n/2r1r2B/3nPR2/1R1P3Q/1P2q1QP/bkp5/pNB3b1/1RB1NbB1 b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Kf3 c5 Ke4 a5 h4 g5 b4 c4 d4 c3 e6 Kd6 e7 g4 e8B g3 b6 a4 h6 g2 h7 a3 b7 a2 Na3 Nc6 b8R Bh6 Rb1 Bb7 Nf3 g1N Ne1 Nge7 e3 f6 Bd3 Nc8 Bg6 Nh3 Rf1 Ra7 Qg4 Nf4 Bf5 Rg8 h8Q Rg7 Bh7 Ng6 Rf2 Ba8 Rb5 Rgc7 Qe8 Nh8 Qeh5 Qd7 Rf5 Nd8 Nc4+ Ke7 Nb2 Qc6 Rf4 f5+ Ke5 Qc4 e4 Nd6 Rf3 f4 Rf1 Nf5 d6+ Kd7 Rf3 Kc6 d7 Nd6 Rf1 f3 Rf2 Ne6 d8B Bg5 Be7 Nd8 Bf6 Bd2 Bg5 Bb7 Be3 Ba8 Rf1 Rab7 Bg1 f2 Kf6 Re7 e5 Rbc7 e6 Bh6 Ke5 Be3 Ra5 Kb6 Rb5+ Ka6 Bh2 Bg2 d5 Bg5 Rh1 f1B Bg1 Bd2 Rh3 Bh6 Rf3 Qe4+ Kf6 Nhf7 Rb6+ Ka7 Bf4 Nc4 Na4 Nh8 Bd2 Na3 Bg5 Qc4 Ke5 Nb5 Rb8+ Ka6 Rf6 Na3 Bd2 Bg5 Kd6 Bh6 Bb6 Kb5 Bde3 Bg5 Bg1 Bc1 Bbe3+ Ka6 Bd2 Bb2 Bc1 Nb5+ Ke5 Ba3 Nb2 Na7 Kd6 Nc8+ Ke5 Nb6 Kd6 Kb5 Nd1 Ka4 Nb2+ Kb3 Rb7 Qe4 Rb8 Na8 Rb5 Rb7 Kc5 Nc7 Kd6 Ra7 Kc5 Ne8 Kb6 Rac7 Ka6 Nb7 Ka7 Ned6 Ka8 Nd8 Bc2+
1q1B3R/R2K2k1/3PQB1n/5r2/1N3pRP/b3QPn1/rPb1Bn1p/1N4Rb b - - 0 1 illegal: No proof kernel
1N2kQ1b/B7/BbP2prr/1K4p1/1Q4PP/1nNnbPR1/2Q3q1/1nN3NR b - - 0 1 legal: proof: d4 b5 a4 c5 dxc5 h5 axb5 d5 e4 h4 Qh5 d4 Qxh4 Be6 Qh7 Bd5 exd5 Qc8 Nd2 Qc7 Nb1 Qd8 Kd2 g5 Kd3 a5 Kc4 e5 h4 d3 g4 a4 b4 d2 d6 d1N b6 a3 c6 a2 d7+ Ke7 b7 e4 c7 e3 c8Q e2 f3 e1B b5 Ra6 b6 Bd2 Kb5 Nf6 c4 Be3 c5 Nc6 b8Q Ne5 b7 Ne4 Nc3 Rg6 c6 Nd2 Bb2 Qe8 d8N Nd3 Ne6 Nb3 Nf4 Bg7 Rc1 a1B Nfe2 f6 Qf4 Qd8 b8N Ke8 Qb4 Bb6 Ba3 Bb2 Rb1 Bc1 Ra1 Bce3 Nc1 Rg8 Ra2 Rh6 Rg2 Bh8 Rg3 Rg7 Qhf5 Rgg6 Qfc5 N1f2 Bb2 Ne4 Q8f5 Ned2 Ba1 Nb2 Qc2 Nb1 Bc4 Qd2 Be2 Kd8 Bd3 Qg2 Qf8+ Kc7 Be2 Nd3 Ka4 Ne1 Ne4 Ba7 Ba6 Nd3 Bd4 Bc5 Nc3 Ba7 Qfc5 Kd8 Kb5 Ke8 Qd6 Bb6 Bc5 Ba5 Ba7 Bab6 Qf8#
1Qr1n1n1/3N3B/1P1r3B/k1p1Np1R/1b1P3K/r4PPN/bR1N4/n1q1R2Q b - - 0 1 legal: proof: a4 b5 axb5 d5 h4 g5 hxg5 e5 c3 d4 cxd4 e4 d3 Ne7 dxe4 Ng8 b4 Kd7 f3 h5 Kf2 c5 Kg3 Kc7 g6 Kb6 g7 a5 e5 a4 e4 f6 e6 a3 e5 a2 e7 Na6 e8Q Bf5 e6 Rb8 e7 Rc8 Nd2 Ra8 Rb1 a1N Kh4 Nb3 g3 Nc7 Nh3 Na1 Bd3 Ra3 Rb2 Be6 Bh7 f5 Rh2 Qb8 Qh1 Ba2 Qd8 Qa7 e8R Qa4 Re7 Qd1 Re1 Bd6 Qc8 Ne8 Qa8 Bc7 Qd8 Ka7 b6+ Ka6 b7 Ba5 Qb8 Kb6 b5 Bb4 Rg1 Ka5 b6 Qc2 Re1 Qc4 Ne4 Qc3 Bh6 Qc4 Nd2 Qc1 Kg5 h4 Kh5 Ne7 Kg5 Rf8 g8N Rf6 Kh5 Rd6 Nf6 Ng8 Nd7 Qc2 Ne5 Qc1 Ng1 h3 Kh4 Qd1 Rhe2 h2 Nh3 Qb1 Re4 Qc1 Rg4 Bc4 Rg5 Ba2 Qf1 h1R Rh5 Rh2 Qh1 Re2 Qd8 Rh2 b8N Re2 Nbd7 Ree3 Nd3 Ree6 Qc8 Rc6 Qc7 Red6 Qb8 Rc8 N3e5
r1B1bK2/Q2Nr2k/1P4Rp/nN6/Pb1B2R1/1QnBb3/1PP4p/q1N1nB2 b - - 0 1 illegal: Other
2Q2Nbn/BN2K2p/BP1Pbn1Q/P6q/3pN3/1RR1rP2/k2N4/b4nRr b - - 0 1 illegal: No proof kernel
r1n5/1Bnbb1P1/Q2n4/6Q1/P4NB1/NR1K1bRB/PprP2p1/q2N2Bk b - - 0 1 illegal: No proof kernel
B1Q1Q1N1/4P1Qp/1r3P2/3r1q1B/R1K1PP2/NnB2pn1/3bBnR1/2k1r2b b - - 0 1 illegal: No proof kernel
4KR2/NQ2PP1k/2Qr3q/n2P1np1/2Rn1bp1/B3Q1P1/4Nr1b/1N1QrB2 b - - 0 1 illegal: Other
1rnKNb2/rQ2pB1N/5b2/1P1p1PnP/RB1P1k1q/n3r3/1QN3R1/3B1B2 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 exf5 b5 g4 b4 gxh5 Ba6 c4 Bb5 cxb5 Rh7 Qg4 Rh6 Qd1 Rh8 Ke2 Kf7 Kd3 Kf6 Kd4 Kg5 Kc5 g6 h4+ Kf4 a4 b3 f6 b2 h6 c6 f7 g5 a6 g4 h7 g3 h5 g2 a7 Kg5 f4+ Kf5 a5 Bg7 f8N Qc7 a6 Nf6 Nc3 b1R Nd5 Qe5 Kb6 c5 Qf3 c4 Ba3 c3 Ne2 g1N Bb4 c2 Nc7 c1B Ra4 Ne8 Rh2 Bf6 Rg2 Nh3 Qb7 Nd6 Ne8 Nc6 Kc7 Ng5 Nd4+ Ke4 f5 Rb3 d3+ Kf4 Nc2 Rb8 a8B Na5 a7 Nc8+ Kd8 Qe1 d4 Rg8 h8Q Nc4 Nh7 Na3 Qg7 Qh4 Qf7 Rc3 Qa2 Re3 Qb2 d6 Qc7 Rf8 Bf3 Ra8 Qb7 d5 Bd1 Rb8 a8B Bd2 Qa7 Rb7 Qb6 Ra7 Qb7 Rg3 Qa6 Nf3 Bc6 Nd6 Bd7 Kg4 Qb7 Bh6 Be6 Kf4 Kd7 Ng5 Kc7 Re3 Ng7 Rb8 Bf7 Nc8 Ne8 Bf8 Kd8
B3q2b/1KRP3r/BN3RQN/4BP1P/4Q3/rPB2n2/pnp4n/kb4rR b - - 0 1 illegal: No proof kernel
1b1b1K1n/2rP1RBb/2n2q2/1p1PN1N1/BPQ2Pn1/pQ4RR/3R1kN1/6r1 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 Nc6 gxh5 Qd6 a4 Qc5 a5 Qb6 axb6 Nb8 Ke2 Kf7 Ke3 Kf6 Ke4 Kg5 Ke5 Kh4 f4 g5 d4 a5 b4 c5 f6 c4 d6 g4 d5 a4 b7 e6 f7 a3 h6 g3 h7 c3 Nh3 g2 Bb2 g1B Nd2 c2 Bd3 c1N Ng5 Ra5 Qb3 Bh6 f8R Bb6 Rg1 Bc7 Nc4 Ne7 Kf6 e5 Kf7 e4 Bc2 e3 Bg7 e2 Ne5 e1Q Rg3 Ra7 Ra2 Rg8 h8N Bf5 d7 Nbc6 b8Q Qc3 Qc8 Bb8 h3 Bh7 Nhg6+ Kh5 h4 Rc7 Rb2 Nd3 Ke8 Nf2 Bd1+ Ng4 Rd2 Nd8 Bc2 Nf7 Bd1 Rb7 Qcc4 Nc6 Bc2 Na7 Ke7 Nh8 Rf7 Qd4 Nd3 Rc7 Nge5 Qa1 Ne1 Qb2 Ng2 Qa1 Bf8 Nc6+ Ke8 Rg6 Bg7 Qd4 Kf8 Qa1 Ngf3 Bg5 Bd1 Bd8 Ng5 Qb1 Qe3 Qf5 Ba4 Re6 Qeb3 Qf6 Ng6 Re1 Ne5 Rf1 Nd3 Kg6 h5+ Kf5 h6 Rg1 Rf3 Kg6 Ne5+ Kh5 Rc3 Bb1 h7 Bd3 Ne3 Kh4 Ng2+ Kg3 Ne3 Be2 Ng2+ Kf2 Rg3 Ng6+ Kg8 Rd1 h8R Rg1 Rd4 Bd3 Rhh3 Nh8 Kf8 Bh7 Rd2#
1QQbk3/2P1Nr1N/2Bnr3/n3P2B/2R1p3/B3KbPp/P1qN1n1R/1N5b b - - 0 1 illegal: No proof kernel
2R2Q1n/1bprB1b1/R3K3/bP2N3/6pr/Qn1P1N1N/RP2rR1P/qB1k4 b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Ke2 Kf7 Kd3 Kf6 Ke4 Kg5 Ke5 a5 d6 a4 h6 a3 h7 a2 d7 Nh6 f6 Na6 f7 Bb7 Qf3 Nc5 Bd3 e6 Qe3+ Kg4 f4 g5 f5 Bg7+ f6 Re8 h8N Ra4 f8R Qa8 d8R Qa6 Qe1 Nb3 Nh3 Kf3 Rc8 Rh4 Ng6 g4 Qg1 Re7 Qc5 Rd7 Bc2 Ke2 d3 Qa3 Bg5 Qa8 Nd2 Nf7+ Kf4 e5+ Kf5 e4 Ne5 e3 Ke6 Nh8 f7 Qa5 Be7 Qa8 Rhf1 Qa4 Ra8 Qa3 Ndf3 Qa7 Rac1 a1R Rfc8 Ra4 f8Q Re4 Ra1 Qa5 Kf5 Qe1 R1a2 Qa1 Nd4+ Kd2 R8a6 e2 Bb1 e1B Rf2+ Kd1 Ke6 Re2 Nf3 Ba5 Qa3
RQnqnrb1/1P6/2k1pr1B/1r2PpR1/BP4PQ/1R5N/1K1N2n1/4RbB1 b - - 0 1 legal: proof: c4 g5 g4 d5 cxd5 b5 a4 Nc6 axb5 Bh6 h4 Nb8 hxg5 Bg7 Nh3 Be5 Ng1 Bg3 fxg3 Qd6 Ra3 Qd7 Ra1 Qd8 e4 Kd7 b4 a5 d4 c5 Kd2 f5 Kc3 h5 d6 h4 d5 h3 e5 e6 g6 a4 b6 h2 b7 c4 g7 a3 g5 a2 g6 Rh6 g4 Nf6 g8R Nc6 g7 Ne7 Qe1 Ne8 Nh3 Rf6 Qh4 Ra5 Nd2 Rb5 Kc2 c3 Rb1 a1R Rb3 Ra8 Rf8 Rb8 g8R Ra8 Kb1 c2+ Kb2 Rb8 Rg1 h1B Rg5 Bg2 Be2 Ra8 Re1 Bf1 Bd1 Rb8 Nf3 Ra8 Be3 c1N Bg1 Ne2 Nd2 Nf4 Rh8 Ng2 Rhg8 Qa5 Rf8 Kd8 d7 Kc7 d6+ Kc6 d8Q Bd7 Qb8 Nc8 Rh8 Qd8 Rhg8 Ng7 Bc2 Be8 d7 Bf7 Rh8 Qb6 d8B Bg8 Be7 Ne8 Bf8 Qd8 Bh6 Ra1 Ra3 Rc1 Bb3 Rc4 Ra8 Rd4 Ba4 Rd7 Rh7 Rdf7 Rh8 Rf8 Rh7 Bd3 Rd7 Be2 Rd3 Bf1 Rb3
Qb4r1/rp2kn2/PK5p/2PBrNB1/R4n1P/1R2BQ2/b1PR3B/2n1N1q1 b - - 0 1 illegal: No possible last move
1kQ2B2/rpp2r2/2P1Q2R/1RNP2PQ/1nP2r2/1N1B2n1/6Bb/qQn1Kb2 b - - 0 1 illegal: No proof kernel
3RR2K/P2nQ3/2p4Q/4P1b1/Q4NQn/2RnNb1b/1p3PPq/1Brrk1B1 b - - 0 1 illegal: No proof kernel
4Q1R1/P3QbBP/1Pp2rr1/Q1b2Nq1/kNp4b/2n1RBB1/5P1B/2K2n1r b - - 0 1 illegal: Other
5Q2/pkQ1BB1K/rN2rBP1/R1nb3R/P1pb1P2/1PNNq3/4n3/1b2r1N1 b - - 0 1 legal: proof: e4 b5 h4 e5 c4 g5 cxb5 f5 hxg5 Nf6 exf5 Ke7 d4 Ng8 dxe5 Ke8 Ke2 h5 Kf3 d5 Kf4 Kd7 g4 c5 e6+ Kc7 f6 h4 Kf5 d4 Kg6 d3 f4 d2 b3 h3 b6+ Kb7 e7 h2 e8N Nd7 f7 Rb8 Bc4 Bh6 f8B Ndf6 Bb2 Nd7 Qc1 d1B Ng7 Ka8 Ne6 Kb7 Be7 Ngf6 Nc3 Ne4 a3 Rg8+ Kh7 Bc2 g6 Bg7 g5 Bd4 g7 Ng3+ g6 Re8 g8Q Ne2 Qf8 Bb1 Ra2 Qc7 Qc2 Qe5 Qc1 Kc6 b7 Qe3 Ra1 Ra8 b8N+ Kb7 Na6 Rb8 Nb4 Ng3 Nc7 Ne2 Bf7 c4 Qe1 Nc5 Nd3 Bd7 N7d5 Be6 Nb6 Bd5 Qh4 Rbc8 Qf6 Rc6 Qe5 Re6 a4 Bc2 Rd1 Bb1 Rd2 Ng3 Rg2 Ne2 Rg5 Rc8 Rh5 Rcc6 Qc7+ Ka6 Nf3 Rcd6 Rg1 h1R Rg5 Re1 Ng1 Rc6 Bf6 Rcd6 Ba3 Rc6 Qe5 Kb7 Bb4 Ne4 Bbe7 Nc5 Qc7+ Ka6 Nd7 Nb7 N7e5 Bf3 Nd7 Rcd6 Rb5 Bd5 Qcb8 Nc5 Qbd8 Rb6 Ra5+ Kb7 Qb8+ Kc6 Qe5 Ra6 Nb6 Kb7 Qc7+
1b4K1/1b4RN/rB1RQ3/1P2Rq1Q/3qP1B1/2nP1Pp1/N2kn1p1/N1qR1r2 b - - 0 1 illegal: Other
2r3k1/bB3q2/2QnPn1N/1r1N3R/2Pp1BPB/2r1N2b/1p2QP1K/q3BR2 b - - 0 1 illegal: No proof kernel
b2Q1r2/N1rnR3/n1NPQ3/1q1P1Nqb/1PBp1NBR/1K1P1p2/8/B4q1k b - - 0 1 illegal: No proof kernel
1q2Q1Qn/RBBb3Q/bk1P3K/1p1q4/P2r3b/P3P1N1/N2RnB1p/Q1r5 b - - 0 1 illegal: No possible last move, all moves rejected
7q/1Q1q1bb1/2P1P1Np/3Qn1p1/1BB1N2P/rr3R1B/k2KP2R/R3n1rR b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 axb5 f5 dxe5 c4 gxf5 c3 bxc3 Ba3 c4 Bd6 c5 Bf8 h4 Kf7 c4 g5 f4 d5 f6 Ke6 c6 a5 c7 d4 c5 Kd5 c6 Kc4 f7 a4 b6 h6 b7 a3 f5 d3 f6 a2 Bd2 Ne7 Bb4 Nf5 Kd2 Be6 c8B Nd7 b8Q Bg7 f8R Ne3 f7 Ra3 Bh3 Ng2 Nf3 Ne1 Qb7 Rh7 Nc3 Bd5 Qc1 Kb3 Ne4 Qc7 Qd1+ Kb2 Rc1 a1Q Be6 Bb3 Bc4 Ka2 Rh2 Qd6 Rd8 Qe6 f8R Qe8 Rf4 Qh8 Rdf8 Qd4 Rg4 Qd6 Rg1 Qe7 Rgh1 Qd8 Bb5 Bf7 Bc4+ Rb3 Be6 Qe7 Bh3 Ra3 e6 Ne5 Rb1 Qd7 Rc1 Ng4 Ne5 Rb3 Ng6 Ne5 Qa7+ Ra3 Ba6 Rb3 Qb7 Ra3 Ke3 d2+ Bd3 Be8 Rf3 Bf7 Qa4 d1R Qab5 Rb3 Qd5 Nc2+ Kf2 Rg1 Bc4 Ne1 Ra1+ Kb2 Rf4 Bg8 Qb6 Qd6 Qda5 Bf8 Qba6 Ra7 Qd8 Bg7 Rf3 Bf7 Qb7 Raa3 Qa5 Qd7 Qd5 N1d3+ Ke3 Ne1+ Bd3 Bf6 Kd2 Bg7 Rd1 Ka2 Bc4 Qh7 Rc1 Qh8 Ra1+
3B4/N3n1KQ/1P1n3R/6RB/b2P1P1n/2N3Qp/pP1br1Rq/2k1qRBr b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 Ke2 Kd7 Kd3 Kd6 Ke4 Kc5 Ke5 Kb4 d4 a5 g4 h5 f4 c5 b6 c4 g6 h4 f6 a4 f7 a3 g5 a2 d6 c3 g7 c2 g6 Kb3 d7 Nc6+ Ke6 Nh6 g8R Nf5 g7 Nd6 Qe2 Ra7 Be3 c1Q Bf2 Qe1 Qe3+ Kc2 Nf3 Bb7 Qe4+ Kc1 Be2 Ra3 Rh3 Re3 Ne5 Rh7 Bh5 Re2 Qd3 Ba6 Qf3 Bb5 Qg3 Ba4 Bg1 Qe8 d8B Qf2 Rh8 Qh2 g8R Rh6+ Kd5 Rh7 Rg5 Rh6 Rhg8 e6+ Kc5 Ne7 Nc6 e5 Na7 e4 R8g7 e3 Rg8 Nc6 Kd5 Ne7+ Ke5 Re1 R8g6 e2 Kf6 Rh7 Bf2 Rh1 Rg7 e1N Bg1 Ng2 R7g6 Nc6 Rg8 Qe1 Kg6 Be7 f8Q Rh6+ Kg7 Re6 Qf5 Re2 Qh7 Bf8+ Kf6 Ne7 R8g6 Ne3 Rg8 N3f5 R8g6 Qhf2 Rh2 h3 Rh6 Nh4 Rg2 Qe3 Qf2 Qg3 Qf3 Qh2 Qb3 Nc6 Qg3 Be7+ Kg7 Bf8+ Kh8 Ne7 Nc3+ Kd2 Qg4 Ne8 Bf2 Nc6 Nd5 Qeg1 Rg3 Bb4 Rg2 Ne7 Qg3 Nd6 Kg7 Qc1 Bg1 Kd1 Qg8 Bd2 Nc3+ Kc2 Rb1 Qf1 Qh8 Qf2 Rf1 Qe1 Qg8 Kc1 Qh7
1r2bb2/1QbB1k2/P1Rn1n2/P5q1/1B2pRN1/r1Q1pP2/N1P4B/qB1R2K1 b - - 0 1 illegal: Other
1RBr1q2/n2b2Nb/P1B2q2/P1bK4/p3rR1R/2Pp3P/kn4R1/Q1B3NQ b - - 0 1 illegal: No possible last move
2n5/qnN2KN1/pBBq1R1Q/1P6/1rB3P1/Bp1r1r2/Q2PbNP1/4kRb1 b - - 0 1 illegal: No possible last move
r1q1N3/k6B/prQ1Pb1n/1P3N2/3q4/1bN1BpPK/5Pn1/RNq1QQ1R b - - 0 1 legal: proof: d4 b5 h4 c5 a4 e5 axb5 g5 hxg5 c4 dxe5 c3 bxc3 Ne7 c4 Ng8 c5 Be7 Nf3 Bd6 Ng1 Bf8 e4 h5 c4 d5 g6 Kd7 g7 Kc7 g3 Kb7 e6 f5 e7 a6 e8Q h4 c6+ Ka7 c5 f4 e5 f3 c7 h3 c6 h2 Be3+ d4 Bd3 Nd7 Kf1 Rh6 Ne2 Nc5 Nec3 Be7 Bh7 Be6 c8Q d3 c7 d2 Qe1 d1Q Qc6 Bb3 Qh3 Rd6 e6 Nh6 g8N Qc8 Nf6 Qd4 Ne8 Nd3 Qg2 Bf6 Qh3 Qd8 Qg2 Nf4 c8N+ Kb8 Qg1 Ng2 Ne7 Qc8 Nf5 Ka7 Qd2 Qb7 Qe4 Rb6 Qc6 Nh4 Qg2 Rd8 Rg1 h1Q Qh3 Qh2 Rh1 Ra8 Qg2 Qh3 Kg1 Qc8 Qc1 Qd2 Qe1 Qg4 Kh2 Qgd4 Qgg1 Ng2 Qgf1 Qc1 Kh3
2b2n2/2BQ3P/pqPB2Rq/3Q1NRN/Pk2B1p1/6B1/1K1P3q/1Rn1brr1 b - - 0 1 legal: proof: e4 c5 b4 f5 bxc5 d5 exf5 h5 g4 d4 gxh5 d3 cxd3 Na6 d4 Nb8 d5 Qa5 Bb2 Qb6 Bc1 Qd8 h4 Kd7 a4 b5 f4 e5 f6 g5 h6 a6 f7 e4 h5 b4 h7 g4 h6 b3 c6+ Kd6 f5 Kc5 d6 b2 f6 e3 d7 e2 Na3 b1Q Nc4 Qb5 Bb2 Qb3 Rb1 Qb7 Be5 Qa5 d8B Bd7 Ne3 Qab5 Qb3 Bf5 Nh3 Ra7 Bdc7 Nd7 Bg2 Ne7 Bg3 Ng6 Be4 Q5b6 Nf4 Nde5 Rh5 Qb8 Rg5 Be7 f8B Bc8 f7 Bd6 Be7 Nf8 Nf5 Ra8 Nh5 Ra7 Kf2 Nd3+ Ke3 Nc1 Qe6 Rb7 Qd7 Rg8 h8Q Rg6 h7 Rf6 Bed8 Be7 Qg8 e1Q+ Kf4 Qe3+ Ke5 Kc4 Bd6 Q8c7 Rg6 Qh6 Rg5 Qb8 B8c7 Bd8 Nh4 Rf1 Nf5 Be7 Rg6 Bh4 Rg5 Ne6 f8R Rg1 Rf6 Rf1 Bh2 Be1 Rfg6 Rg1 Qgd8 Nf8 Bf4 Qf2 Bg3 Qh2 Q8e8 Rb2 Qed8 Kb3 Kd4 Qb5 Bdf4 Kb4 Qd5 Qb8 Q8d7 Rb3 Ra1 Rf3 Rb1+ Ka3 Kc4 Rff1 Kc3 Qb6 Kc2 Nb3 Bfe5 Kb4 Kb2 Nc1 Bed6+
2R2N2/B5pK/1b1P2n1/3qQR1k/Pq1nn1R1/2r1pQ1N/rb1PP1B1/B4R2 b - - 0 1 illegal: No proof kernel
1bRB2Q1/N3qP1Q/1B2B1NK/4nP1p/1p1r2q1/1r1P2NP/4nR2/b1kN2b1 b - - 0 1 legal: proof: c4 f5 f4 d5 cxd5 a5 e4 a4 exf5 a3 g4 Kd7 f6 Ra6 f5 Qe8 f7 Rd6 f6 Qd8 bxa3 Rb6 a4 Ra6 a5 Ra8 Nc3 Kd6 Nb1 Bf5 gxf5 Kd7 Ke2 Kd6 Ke3 Ke5 a4 b5 a6 g5 a7 c5 a5 h5 h3 b4 d6 c4 d7 c3 d3 c2 a6 g4 Qe2 g3 Bg2 Bg7 f8N Nc6 f7 Nd4 Qg4 Ne2 Nc3 Nh6 Bd5 g2 Qg6 Ng4+ Kf3 Kd4 Be6 Qc8 d8B Qc4 Rh2 Rg8 Bf4 c1B Bfc7 Bf4 Nd1 Bfe5 Ba5 Bb8 Rc1 Bh8 Qh7 Ne5+ Kf2 Rg4 Ng6 Qc6 Rc5 Qe4 Rc7 Rh4 Rc8 Qg4 Bac7 Kc5 Ke3 Bf6 Nf3 g1B+ Rf2 Kb5 Ba5 Ka4 Nh2 Ka3 Nf1 Bg7 Bab6 Bh8 Nc3 Kb2 Ng3 Kc1 Nd1+ Nc6 Ba2 Ba1 Bc4 e5 Be6 Qc4 Kf3 Rd4 Ke3 Nc3 Kf3 e4+ Ke3 Ne5 Kf4 e3+ Kg5 e2 Kh6 e1Q Bc5 Bd6 Bcb6 Rb8 a8Q Ne2 Qg2 Ra8 a7 Bb8 Qc6 Qc5 Qe8 Qf1 Qeg8 Qg2 Nf1 Qg4 Ng3 Bc7 Qhg7 Qe7 Q7h7 Rb8 a8N Rb7 Nc3 Bb8 Nc7 Ra7 N7b5 Ra3 Na7 Rb3 Nd1+
R2b2N1/1rNK1PP1/5p1n/rQqQRBk1/2bRbP2/2BP4/pq1N4/4R2n b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f6 hxg5 d4 e5 d3 e6 Qd5 cxd3 Qf5 d4 Qg6 d5 Qf7 exf7+ Kd7 Ke2 a5 Ke3 e5 Ke4 Ke7 g4 c5 b4 h5 g6 h4 g7 h3 g5 h2 g6 c4 b6 c3 d6+ Ke6 b7 a4 d7 a3 d8R c2 b5 a2 b6 Bd7 Bb2 c1Q Ne2 Bb5 Bc3 Na6 b8R Qb2 b7 Bc4 Rd4 Nh6 g8N Be7 g7 Bd8 d3 Ra7 Nd2 Rh7 Rg1 h1B+ Bg2 Rh8 Ra8 Rh7 b8Q Rb7 Re1 Nc5+ Kf3 Kf5 Nf4 Kg5 Nd5 Ne4 Qb3 Rh8 Nc7 Ng3 Ree4 Rh7 Rae1 Rh8 R4e2 e4+ Ke3 Rh7 Bh3 Bg2 Bf5 Nh1 Qb5 Rh8 Qd5 Bf3 Ne7 Re8 Ng8 Re5 Qe6 Ra5 Qd5 Kh5 Kf4 e3 Qa7 Be4 Qac5 Qb6 Qb5 Qc5 Rg1 Kh4 Ree1 e2 Rg3 Bg2 Re3 Bf3 Re5 Be4 Rf1 e1Q Rg1 Qc1 Re1 Bf3 Be4 Ng4 Kf5 Nh6+ Ke6 Qb2 Bf5+ Kg5 Kd7 Be4 f4+
1rr1b2K/1N1Q1pn1/1k1P3p/2n1BR2/5N1R/1q6/nQPPN1QP/1B1Nb2q b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 c4 exd5 c3 bxc3 Bh6 c4 Bg7 c5 Bf8 Kf2 Kd7 Ke3 Kc7 Kd4 a5 Ke5 a4 g4 h6 c6 a3 g6 e6 g5 a2 g7 Qe7 g6 Ra5 b6+ Kd8 c7+ Kd7 b7 Qd8 Ne2 Ra8 Nbc3 Ba3 Bb2 Nf6 g8Q Bf8 g7 Na6 b8Q Nh5 Qc1 Qh4 Qb7 Qa4 Nd1 Bc5 Bd4 Qb5 Qb2 Qb3 Bh3 Rb8 Rf1 Ba7 Rf5 Nb4 Rb1 a1N Bf1 Nf4 Kf6 Na2 Be5 Bf2 Qa7 Bb7 c8N Be1 Nd6 Kc7 Qa4 Ba6 Nb7+ Kb6 Qd7 Bb5 d6 Bc6 Bg2 Rc8 Bd5 Bb5 Bc3 e5 Bc4 e4 Be5 e3 Be6 Rc7 Qa8 Rb8 g8N Rc3 Kg7 Nh5+ Kh8 Rcc8 Bc4 Ng7 Bd5 Ne8 Ne7 Ba4 Ng6 Ng7+ Qe8 Bd7 Ngf4 Bb5 Qf8 Be8 Qe7 Qb4 Bc4 Nb3 Qd7 Nc5 Ra1 Qb3 Bd5 Nc3 Ra4 Na2 Ng6 Bg3 Rh4 Bf2 Ngf4 Be1 Nd4 e2 Be6 Bg3 Bd5 e1Q Nde2 Qh1 Be6 Qb5 Bc4 Be1 Be6 Nc3 Ba2 Qb3 Bb1 Na2 Qaa3 Qb4 Qg3 Qb3 Qg2
4RQ1q/1K1NPN1r/r1Bk4/Qb1P3B/p7/1P5N/Pn1pq1bR/1q1B1nB1 b - - 0 1 illegal: No proof kernel
n3KBk1/4PN2/3qQ1Pr/3pPRbr/Np1R2q1/Q4QQ1/1PNnq3/1B1b4 b - - 0 1 legal: proof: f4 b5 h4 g5 hxg5 e5 fxe5 c5 a4 b4 d4 Qb6 dxc5 Qb5 axb5 Kd8 Rh2 Ke7 Rh1 Ke8 Kf2 a5 Kg3 h5 Kh4 d5 c4 f5 g4 Kf7 e4 a4 b6 a3 g6+ Kg7 Kg5 f4 c6 f3 c5 a2 e6 f2 e5 h4 e7 h3 c7 h2 b7 Bd7 c8N Nf6 c6 Rg8 c7 Ne8 Qf3 Nc6 b8Q Ra7 Nc3 Ra6 Qa8 Rb6 Qa3 Na7 Na4 Rf6 Bd3 f1Q Bb1 Nb5 Ne2 Nc3 Nd4 Rh8 Nd6 Qe2 c8Q Nc7 Nc2 Na8 Rd1 h1Q Nf7 Qh3 Rd4 Kg8 g7 Rfh6 Qa6 Qhg2 Qe6 Ne4+ Kf5 Nd2 g5 Rh5 Kf6 Bb5 Qeg4 Bc4 Qgg3 Bb3 Ke6 R8h6+ Kd7 Qh3+ Ke8 Qe6 Ne1 Bd1 Nc2 Qd6 Qff2 Kh7 Qff3 Kg6 g8Q+ Bg7 Qf8 Kh7 Qf6 Qg4 Qe6 Bf6 Qac3 Bf3 Nh8 Rg6 Qa3 Nc4 Be3 Nd2 Bf4 Bg7 Qff6 Bf8 Nf7 Kg8 Qff5 Bh6 Qe4 Rg7 g6 Rh7 Bg5 Rh8 Bf6 Bf4 Bg7 R8h6 Bf8 Bg5 Ne3 Rh1 Bd3 R1h5 Rf1 a1Q Qef4 Qd1 Bb1 Qe1 Nc2 Bd1 Qe4 Qe3 Rf5 Qee2 Qef3
q2b4/qnr1P1r1/1R1NP1R1/k1pNQp2/PB2R3/2PbQn2/5RB1/3KNn2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 g5 fxg5 e5 b4 e4 bxa5 e3 dxe3 Na6 e4 Nb8 e5 Bh6 Be3 Bg7 Bc1 Bf8 e4 c5 a4 d5 h4 Kd7 e6+ Kc7 h6 f5 e7 b5 h5 b4 g6 d4 g7 b3 a6 Kb6 a7 b2 e5 d3 e6 Bd7 h7 Nf6 g8R Bh6 Rh2 Ne8 Qe2 d2+ Kd1 Qc8 Bg2 Bf4 h6 Nd6 Qe3 Nb7 Nf3 Ka5 Nc3 b1Q Ne1 Nc6 Rg6 Nd4 Nd5 Nf3 c3 Qb6 Ba3 Rg8 h8Q Bc7 h7 Bb5 Qhe5 Bd8 h8N Bd3 Nf7 Rg7 Nd6 Qcc6 Rc1 Rc8 a8R+ Qa7 Rb8 Rc7 Rh4 Qca6 Re4 Qa8 Ra1 Q6a7 Ra2 Be2+ Kc2 d1N Kc1 Bd3 Rc2 Nb2 Rf2 Nc4 Kd1 Ncd2 Nf7 Nd6 Rb6 Nb7 Nd6 Nf1 Bb4+
1K1R1b2/3QPrnP/1PbN2pQ/k1BB1n2/1N2N1P1/q2qp3/1r1R3N/1b4Q1 b - - 0 1 illegal: No proof kernel
5Q2/N1Rp1PBN/kq1q1N1b/1P5b/KP2BrPn/1np3R1/2Bn2Nr/2Q5 b - - 0 1 illegal: No possible last move, all moves rejected
Nq3Q2/1P3KBP/1pQrR3/3Ppbr1/nBB1Pq1B/N6b/k2N2n1/3b2R1 b - - 0 1 illegal: No proof kernel
8/Qp1qNq1Q/3Nb2P/KPBp1Rbb/P3R3/1R2P3/R5nn/1rN2krB b - - 0 1 legal: proof: f4 a5 d4 e5 fxe5 h5 g4 c5 dxc5 a4 gxh5 a3 Nxa3 Ne7 Nb5 Ng8 Na7 Qg5 Nf3 Qf6 Ng1 Qd8 Kd2 Ke7 Kc3 Ke6 Kb4 Kf5 c4 Kg4 a4 f5 h4 Kg3 e3 Kf2 e6 d5 h6 g5 e7 g4 e8R f4 h5 g3 h7 g2 h6 f3 Re5 Bg7 c6 Bf8+ c5 Qf6 c7 Qf5 Qd4 Ne7 c6 Qd7 Nb5 Ng6+ Nd6 Be7 Rh4 Bg5 Ne2 g1Q Qa7 Rf8 h8Q Nf4 Ka5 Ng2 b4 Qf7 b5 Nd7 Rf4 Nf6 Ba3 Ng4 Rfe4 Nh2 Bc5 Be6 c8R Rg8 Rc7 Rac8 Ra2 Ke1 Nc1 f2 Be2 f1B Bf3 Be2 Qh7 Rcf8 Rc8 Kf1 c7 Qd7 Ba3 Qf2 Bc5 Ne1 Bh1 Qff7 Ra3 Rg7 Rb3 Rfg8 Rf8 Bh5 c8N Ng2 Ne7 Rg6 Rc8 R8g7 Ba3 Rf6 Rc2 Rf2 Ra2 Rb2 Bb4 Rb1 Bc5 Bf6 Ne2 Rg3 Nc1 Bg5 Ne8 Nh4 Nd6 Rg1 Bb4 Ng2 Ba3 Bf6 Bc5 Bg5 Rf5+
3B3Q/1p1R2N1/2R1rP2/1KP3br/pn2N3/P2N1kb1/1PB3QQ/Nqq1b2n b - - 0 1 legal: proof: e4 c5 c4 h5 d4 f5 exf5 d5 dxc5 d4 g4 Be6 gxh5 Bd5 cxd5 Qd6 Na3 Qd7 Nb1 Qd8 Ke2 Kf7 Kd3 Kf6 Kc4 Ke5 f4+ Ke4 h4 g5 h6 a5 d6 e5 d7 a4 h7 d3 a3 d2 h5 g4 h6 g3 f6 g2 f5 Qc7 d8N Qg7 f7 Qg4 Nc3+ Kf4 Nc6 e4 Kb5 e3 Nb4 e2 Qc2 e1B Ne4 Nf6 Nf3 g1B Bd3 Na6 Nd4 Nd7 Nb3 Bd6 f8N Bb8 Ne6+ Kf3 Ng7 d1Q Bg5 Be3 Bd8 Qb1 f6 Re8 h8Q Qf4 h7 Ne5 Qg8 Bc7 h8Q Re6 Rh7 Ng4 Qh2 Nf2 Bc2 Nh1 Nd3 Be5 Ng3 Nb4 Ne4 Qc1 Rb1 Qf5 Na1 B3d2 Rh5 Bg5 Rh7 Qd2 Rd1 B5g3 Ne8 Qe3 Rc7 Qc1 Rc6 Rc8 Rd2 Rc7 Rd1 Rh7 Ng7 Rh3 Ndf2 Rh5 Rd7 Qb1 Nd3 Qf4 Qgh7 Qd2 Qf5+ Qf4 Qfh3 Qfc1 Q3g2+
B4Br1/bp3P2/1P6/3nbk2/1pPQ1R2/bQQ1R3/K1R3NP/N1qn1rqR b - - 0 1 illegal: Other
1K1k1b2/P3p1q1/QQp3NR/1n1N1NP1/1B1Rq3/PBB2N2/2bPrn2/2r1n3 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 g5 bxa5 d5 h4 d4 hxg5 d3 cxd3 Ra6 d4 Ra7 d5 Ra8 g6 h5 Ke2 b5 Ke3 b4 Kd4 c6 Kc5 h4 g4 b3 f4 h3 d6 b2 g7 h2 a6 Rh3 f6 Rh5+ g5 Be6 f7+ Kd7 a7 Bf5 Nf3 Nh6 g8N Qc8 Kb6 Qd8+ Kb7 Be6 f5 Bd5 f6 Rh4 Qa4 Na6 Nc3 Nb4 Bc4 b1Q Ba3 Bg7 f8B Nf5 f7 Qe4 Nh6 Nd4 Qa6 Nd3 Nf5 Ne1 Rc1 Bh6 Bg7 Qg8 f8N+ Ke8 Ng6 Rb8+ Kc7 Rb1 Bb4 Nb5+ Kb8 Qf8 Rc2 Rc1 a3 Be6 Ba2 Bb3 Be5 Rg4 Bg7 Rg2 d7+ Kf7+ d8Q Re2 Be5 Qg8 Nd5 Bf8 Rc3 Bc2 Rc4 Qg7 Qdb6 Ke8 Bec3 Kd7 Rd4 Ke8 Rf1 h1N Bb3 Nf2 Rh1 Kd7 Rh6 Ke8 Qc5 Kd8 Qcb6+
r1B5/BQN2RQ1/3Pp3/2NR2Nn/nr1b1Pnk/q2P2B1/PnpK2b1/N7 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 h4 Kf7 d6 Kf6 a6 g5 h6 b5 h7 c5 h5 g4 d3 b4 a7 c4 h6 b3 Rh5 g3 Bh3 b2 Nf3 c3 Ng5 g2 Bf4 g1N Nd2 b1N Qf3 c2 Nb3 Qc7 Bh2 Na3 Qb7 Nd7 Kd2 Qc5 Rf1 Ne5 Na1 Ng4 f3 Rb8 a8N Ne2 Nc7 Nc3 Rf2 Ra8 Rf1 Ra4 Rf2 Rf4 Rf1 Na4 Rf2 Ke5 f6 Kf5 f7 Bg7 f8N Nf6 Nd7 Rb4 Rf1 Rf8 h8B Qa7 h7 Nc4+ Kc1 Kg6 Nc5 Ncb2 Kd2 Be6 Rf2 Ra8 Rf1 Bd5 Rf2 Nh6 Bc8 e6 Rf1 Nhg4 Rf2 Bf8 Bg7 Qa6 h8Q Bc6 Bh6 Bg7 Rf1 Ne8 Qf8 Bd4 Bg7 Bd5 Bge5 Nef6 Qg7+ Kf5 Bef4 Qa7 Be3 Qa6 f4 Bf3 Rb1 Bg2 Rh7 Nh5 Re1 Ngf6 Beg1 Kg4 Re5 Kh4 Rd5 Bf3 Qd7 Bg2 Rf7 Ng4 Qe7 Nb6 Qf6 Qa3 Qg7 Be5 N5a6 N6a4 Ba7 Bf6 Nc5 Bd4 Bg3+
R2B4/q2b2bQ/pNkpn2P/1B1N2R1/rP6/1PPB4/bb2QRK1/nr5B b - - 0 1 legal: proof: g4 c5 f4 h5 gxh5 e5 fxe5 b5 d4 b4 dxc5 b3 axb3 Bb7 b4 Bc8 Kf2 f5 e4 g5 h4 g4 h6 d6 h5 Kd7 h7 f4 c6+ Kc7 b3 a6 h6 f3 e6 Kb6 e7 Ra7 e8R Rb7 c7 Nd7 e5 Nc5 e6 Qe7 Bd3 Bd7 c8B Kc6 Rh2 Bg7 Bg5 Nf6 Qe2 Nd5 Nh3 Rb5 Ra5 Ne3 Nf4 Rf8 h8Q g3+ Kg1 g2 c3 Nc2 Qh7 Na1 Na3 Rg8 Kf2 g1B+ Kg3 f2 Nd5 f1B Rf2 Bg2 Nc4 Be4 Ncb6 Qf7 e7 Ne6 Bc4 Bb1 Kg2 Ba2 Rd8 Bh2 e8B Bf4 Bd3 Qe7 Bf7 Bc1 Rf8 Bb2 Bf6 Be8 Bh4 Qa7 Bd8 Nc7 Bcf5 Ne6 Bc4 Rc5 Bfd3 Bd7 Bfg6 Rb5 Bge4 Rc5 Bf6 Rb5 Ra8 Rf8 Bd8 Rf5 Kf1 Rh5 Kg2 Rh1 Kg3 Rc1 Bh1 Rb1 Kg2 Rc5 Nf4 Rf5 Re5 Rh5 Nfd5 Rf5 Re4 Rh5 Rg4 Rf5 Rg5 Re5 Nf6 Ra5 Nfd5 Ra4 Bb5+
5q2/2r1nP2/1pn1R3/3n4/PNpBQb2/2k2QRQ/PNrn1PbB/K2B2Q1 b - - 0 1 legal: proof: g4 d5 e4 a5 c4 h5 cxd5 f5 exf5 a4 gxh5 a3 bxa3 Na6 a4 Nb8 d4 Kd7 Kd2 Kd6 Kc2 c5 Kb2 e5 h4 g5 f6 b6 f7 c4 h6 g4 h7 e4 h5 e3 h6 e2 Rh3 e1N Nf3 g3 Be3 g2 Ne5 g1N Na3 Be6 Nc2 Qg5 Qf3 Qg6 Rg3 Ne2 Nd3 Nc3 Be2 Nd7 Bd1 Rb8 Ncb4 Bf5 Rc1 Bh3 Ka1 Qe6 Nb2 Ne7 Rc2 Bf5 Re2 Rc8 Qe4 Rg8 h8B Nb8 h7 Nf3 Re1 Bh6 Be5+ Kd7 h8Q Nbc6 d6 Rgd8 d5 Rc7 Qh7 Bf4 Qh3 Qh6 Re2 Nd2 Qf3 Kc8 d7+ Kb7 d6 Be4 Re1 Re8 d8Q Qf8 d7 Ncd5 Qc8+ Ka7 Qhh1 Rd8 Qg1 Re8 Qe2 Bh1 d8Q Bg2 Qh3 Kb7 Qf3 Ka7 Nc2 Ka6 Nb4+ Ka5 Qdd7 Rd8 Qde6 Rd6 Qeg4 Re6 Bd6 Re4 Re2 Rd4 Be5 Rd3 Qe4 Rc3 Qgf3 Rc2 Rg7 Bh6 Bh2 Bf4 Rg3 Nf1 Bc5 Nd2 Qeh7 Ne3 Na6 N3d5 Re6 Qb8 Qhe4 Qg8 Be3 Qf8 Nb8 Kb4 Na6+ Kc3 Nb4 Qe8 Qhg4 Qa8 Qh3 Qf8 Bd4+
Q2BQ1R1/4PB2/1bQ2Pn1/1k3Pbr/1N1n3B/1R2B1p1/N1bKPp1b/5qr1 b - - 0 1 illegal: No possible last move, all moves rejected
2KB2Q1/1Q1P4/BkBP1p2/1b2p1Rb/1N2n1rr/3NbR2/P2qQ1PB/5b1n b - - 0 1 illegal: No possible last move
r1QR1K2/Qbqp1n2/1b2Qb2/1NrPR3/Pk2N2P/p1BPbB2/8/5NnN b - - 0 1 illegal: No proof kernel
3nqQ1Q/1NP1Qr1N/2p1b2B/2Pn3P/6p1/2B1bQ2/KnnkP3/R2B2Rr b - - 0 1 legal: proof: f4 b5 a4 e5 fxe5 h5 axb5 c6 d4 h4 d5 h3 d6 Qc7 dxc7 Nh6 gxh3 Rg8 h4 Rh8 h5 Ng8 Kd2 Ke7 Kc3 Ke6 Kb3 Kf5 h4 Ke4 c4 a5 h6 g5 e6 d5 c5 f5 h7 f4 h5 g4 b6 f3 e7 d4 e8Q+ Ne7 b7 f2 Nh3 a4+ Ka2 d3 b4 a3 b5 d2 b6 Ke3 Ng5 Nd7 b8Q Ne5 b7 Nd5 Bg2 f1Q Qe7 Qf7 Rg1 Be6 Be4 Bh6 Qf1 Rf8 h8B Qe8 Bc2 Nf7 Bd1 Nd8 Nc3 Rf7 Nce4 Ra5 Qc8 Rb5 b8Q Rb1 Nh7 Bf4 Bhb2 Bg5 Kb3 a2 Nd6 Bf4 Ka3 Bg5 Bc3 Bf4 Bb3 Bg5 Nb7 Bh6 B1b2 d1N Bg7 Rc1 Bbc3 Nb2 Bd1 Bg5 Bh6 Rb1 Bf6 Kd2 Qf3 Be3 Bc3+ Kc1 Qcd7 Qh8 Rf1 Nb6 Qd4 Nd5 Qa8 Qf8 Qh8 Qg8 Qa4 Rf5 Qaf4 Qe8 Re1 Rg5 Qff8 Rg7 Rh1 Rf7 Ba4+ Nd1 Rh3 Nb2 Rg3 Bd2 Kb3 Be3 Rg2 Kd1 Rg3 Rc1 Rb1 a1N+ Ka2+ Nc2 Bcg7 Kd2 Ra1 Rh1 Rgg1 Nd4 Bd1 Nc2 Bc3+
3Kn1r1/BPrQ2N1/1pB2r1n/5N1R/B1P4b/2r3p1/2bRPPN1/1NkQ1q2 b - - 0 1 illegal: No possible last move, all moves rejected
3nb2Q/1pK5/1r2RP1b/1qP4B/4rPNp/r4N2/1rP1QBkN/B1NR3n b - - 0 1 illegal: No proof kernel
1bRbb1N1/P1RPq1NK/n2QB2N/B1Q3Rn/2b4P/1p4P1/1r1p4/1r1R1k2 b - - 0 1 illegal: No possible last move, all moves rejected
B1r5/pb1rbqPN/4B1P1/1P3n1Q/4Q3/p1B1nN1b/PQ1bQk2/2RR3K b - - 0 1 illegal: Other
K3RB2/1P3pQn/3P1P1R/2bBbB1N/1qqkN3/1rp5/Pr2b1R1/2R1Q1r1 b - - 0 1 legal: proof: e4 a5 b4 h5 bxa5 d5 exd5 b5 g4 b4 gxh5 Nc6 c3 Na7 c4 Nb5 cxb5 Bd7 Bh3 Bg4 Bf1 Bc8 Ke2 Kd7 Kf3 Kd6 Ke4 Kc5 f4 g5 d4+ Kd6 h4 c5 f5 e5 b6 g4 a6 b3 a7 g3 h6 c4 f6 c3 h7 b2 h5 g2 h6 Bd7 Ne2 g1Q Nf4 Qg4 Rg1 Ne7 Qe1 Qg5 Nd2 b1R Rg2 Bb5 Nh5 Rb3 Ba3+ Rb4 Bd3 Qc8 Rc1 Rg8 h8R Ng6 h7 Rb8 a8B Qc4 Bc2 Be7 Bb1 Nf8 Bb7 Kd7 d6 Ke6 d7 Bc5 d8R Rb2 Re8+ Kd6 Bd5 Qh4+ Kf3 Qb4 Bf5 e4+ Ke3 Be2 b7 Ra8 Nb1 Ra5 Nd2 Qc4 Bb4 Rb5 Ba3 R5b3 Bb4 Bg4 Kf4 e3 Ne4+ Kc7 Ke5 Kb6 Ba3 e2 Bb4 Kb5 Ba3 Bb6 Kd6 Bc5+ Kc7 Bf3 Qg1 e1B Kb8 Bg3+ Ka8 Be5 Qh1 Be2 Qe1 Ne6 Bb4 Ng5 Ba3 Bb6 Bf8 Bc5 Bc6+ Kb6 d5 Rg7 d6 Qb4 Nd2 Qhc4 Bd5 Rg6 Ne4 Kb5 Rg8 Kb6 h8Q Nh7 Rh2 Rg1 Rhg2 Kb5 R8g6 Kb6 Rh6 Kb5 Qg7 Kb6 Bde6 Kc6 Bc8 Kd5 Bce6+ Kd4 Bd5
1R1qk1r1/1p5q/RNN1n3/RB2n2P/1P2rp2/1q3PrQ/1B3N1P/2KQb1N1 b - - 0 2 legal: proof: d4 a5 g4 h5 gxh5 e5 dxe5 d6 b4 Be6 bxa5 Bb3 cxb3 Qg5 Nh3 Qf6 Ng1 Qd8 Kd2 f5 a4 g5 e4 c5 a6 d5 f3 d4 e6 f4 a5 d3 e7 g4 b4 c4 a7 g3 e5 g2 a6 Rh6 Bb2 c3+ Kc1 c2 Nc3 Nf6 Nce2 Rh8 Nd4 Rg8 Ra5 Nfd7 Nc6 Nc5 Be2 Nbd7 Bf1 Rb8 a8Q Rg3 a7 Ne6 Ra6 Rc8 Ra5 Rc7 Qc8 Bg7 a8N Bf6 Nb6 Bh4 Nd4 Rc4 Nc6 Re4 Ra6 Kf7 e8N Rg8 Nf6 Be1 Ng4 Ke8 Nf2 Rg3 Ne2 g1R Ra5 R1g2 Ng1 Rg8 Ra6 R2g3 Ra5 Nc7 e6 Ne5 e7 Ne6 Be2 Nc7 Qh3 Ne6 Bc3 d2+ Kb2 Nc5 Bb5 Ne6 Bd4 Kf7 e8R c1Q+ Ka2 Qa3+ Kb1 Qb3+ Bb2 Qd7 Rc8 Qd8 Rb8 Ke8 Qc2 d1Q+ Qc1 Qd4 Qd1 Qdd5 Kc1 Qd7 Ra6 Ng5 Qd4 Qc4+ Kd1 Qcf7 Ne2 Bd2 Re1 Qdf5 Ng1 Q5h7 Kc2 Bc3 Rea1 Qb3+ Kc1 Ne6 Qd1 Be1 R1a5
2N1nN1b/1qQ5/2n4q/Q3Pr2/2p2Rn1/PQPRrPp1/rNk1B2B/4K2Q b - - 0 1 legal: proof: g4 a5 d4 g5 b4 e5 dxe5 f5 bxa5 b6 h3 Bb7 gxf5 g4 Qd6 g3 Qd3 Bf3 Qd1 Bg4 hxg4 Be7 Qd2 Bc5 Qd1 Bf8 e4 Kf7 c3 d5 e6+ Kf6 g5+ Ke5 g6 c5 f6 h5 f7 d4 a6 h4 e7 d3 e8Q+ Qe7 a7 h3 g7 b5 Be3 b4 Qd7 h2 Be2 b3 Nd2 b2 Nh3 b1R Rf1 h1Q Ng5 Nf6 g8Q Bg7 f8N Ne8 Qb3 Nc6 Qc7+ Qd6 Qc1 Rh5 a3 Rb2 Rb1 Bh8 Qcd1 Rc8 a8Q Ra2 Qaa5 Rd8 Ra1 Rd7 Rc1 Re7 Bd4+ Kf4 Nf7 Rf5 Nc4 Ree5 Nb2 c4 Rc2 Qdh6 Nd6 Qf3 Nc8 Qg2 Bg4 Qf3 Re2 Qg2 Re3 d2+ Ke2 Qgh1 Rd3 Qg2 Qa1 d1N Ke1 Ne3 Be2 Ng4 f3 Qgh3 Rh1 Qh7 Qb1 Q3h6 Bg1 Qe7 Qa1 Qb4 Rh4 Qb7 Rd6 Re6 Bh2 Ke3 Rd8 Rd6 e5 Rd3 Kf1 Kd2 Rd6 Ngf6 Rf4 Ng4 Kg2 Nb4 Qh1 Nc6 Kf1 Kc1 Rdd4 Re3 Rd3 Kb1 Ke1 Kc1 Qbb5 Kc2 Qb3+
1RNQB2q/1pK1BPk1/QPn5/1r2PQ2/1r2b1N1/7N/qbrP1p1Q/R2q4 b - - 0 1 illegal: No proof kernel
1B4N1/qq1pQ1RR/1kP1PB2/q2P2P1/4Qnnr/r4rbB/1N2B1p1/4Q1K1 b - - 0 1 illegal: No proof kernel
qb1Q4/1PqQ1KP1/2rB4/2N5/pb3pP1/6Br/P1b2Nq1/kRnBRQ1B b - - 0 1 legal: proof: d4 g5 h4 b5 hxg5 e5 dxe5 b4 f4 b3 g4 Bc5 f5 Bf8 cxb3 Nc6 b4 Nce7 b5 Ng6 fxg6 Bb4+ Kf2 Bc5+ Ke1 Bf8 Kd2 Ke7 Kd3 Ke6 Ke4 a5 b4 f5+ Kd4 c5+ Kc4 h5 e4 a4 b6 h4 b7 h3 b8B h2 b5 Nf6 g7 Nh5 b6 Ng3 b7 Ra6 g6 Ne2 Bd6 Rc6 Nc3 Qc7 Bf4 Nc1 Bg2 Rh3 Bg3 f4 Rb1 Be7 Kb5 c4 Qf1 Bd8 Bf3 Be7 Bd1 Bf6 Bb4 d5 Bd6 d4 Kb4 d3 g8Q+ Qf7 g7 d2 Qd8 Qc7 Nf3 Be7 Ne1 Bf8 Rg1 h1Q Nd3 Qg2 Nf2 Be7 Qe2 Bd7 Re1 Be8 Qf1 Bg6 Nd5 c3 Nf6 c2 Nd7 Nb3 Kb5 c1B Kb4 Bb2 Nc5+ Kf7 Kc4 Nc1 e6+ Kf6 Kd5 Be5 Qd7 Bf8 e7 Bf5 e8Q Be7 Bc2 d1Q+ Bd3 Qe2 Bc2 Qa6 Qed8 Qa8 Bd1 Bd4 Na6 Ba7 Nc5 Bb8 Rb5 Bh7 Rb1 Kg5 Ke6 Bg6 e5 Bc2 Q8c8 Bf8 Kf7 Be7 e6 Bf8 Kg8 Kg6 e7 Kf6 e8B Be7 Be2 Bf8 Be7+ Ke5 Bd6+ Kd4 Bd1 Kc3 Qcd8 Be7 Bf7 Bf8 Be6 Be7 Kf7 Bf8 Rb4 Be7 Bb3 Kb2 Bd5+ Ka1 Rb3 Bf6 Rb6 Bc3 Be4 Bb4 Bef3 Qh2 Bh1 Qg2 Rb5 Bd2 Rb3 Bb4 Rb1+
nRq1QR2/1Nnnrp1K/N2q2B1/1r1PB1bk/1P3P1p/1N5N/1qPQ4/6B1 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 d5 axb5 Bb7 d4 Bc6 dxc5 d4 Ke2 Nh6 Ke1 Bd5 exd5 Ng8 Ke2 h5 Kf3 e5 b4 a5 g4 a4 b6 a3 c6 a2 b7 d3 c7 e4+ Kf4 e3 c8N d2 g6 e2 g5 e1Q g7 Qd7 g6 Qde7 Nd6+ Kd7 Nh3 Ra7 Bd3 Nf6 Kg5 Q1e2 g8Q Na6 b8B Nc7 f4 Q2e6 g7 Na8 Nb7 Q7d6 Bg6 Ke7 Qe2 d1N Nd2 Nc3 Nb3 Rh6 Be3 Nd7 Bg1 Nb5 Qd2 Nbc7 Re1 a1Q Qh8 Qb2 g8N+ Ke8 Nf6+ Ke7 Ne4 h4 Nec5 Ra5 Na6 Rb5 Rh2 Bg7 Rhe2 Bd4 Qe5 Rh8 Qe4 Re8 Kh6 Bf6 Kh7 Bg5 Ra1 Kf6 Ra5 Rc5 Rb5 Re7 Rb6 Rb5 Re3 Qg4 Rc3 Ne8 Rc8 Nec7 Rf8 Ne5 Qc4 Qc8 Qc6 Nd7 Bh5 Ne5 Qe8 Kf5 Bg6+ Kg4 Bd4 Nd7 Ba7 Re3 Be5 Re1 Nd8 Re3 Rb8 Re2 Nb7 Re1 Bf5+ Kh5 Bg1 Re3 Bh8 Re6 Be5 Re7 Bg6+
B3r3/1Q5R/1nn2k1Q/N2p3p/2RNr1Qq/BP1r4/qN1PPPn1/2bK2Q1 b - - 0 1 illegal: No proof kernel
1Q2q1N1/1qpq2rr/1Nn4p/P1b4P/P1BB2N1/2P2Q2/K5RR/nN2kn1B b - - 1 2 legal: proof: d4 e5 dxe5 f5 exf6 a5 g4 a4 f4 b6 e4 a3 f5 Ne7 e5 Ng8 f7+ Ke7 bxa3 Ba6 a4 Bd3 f6+ Ke6 a5 Kd5 Nc3+ Kc5 Nb1 Bf5 gxf5 Kc6 Kd2 Kc5 Kc3 g5 Kb2 Kb4 h4 d5 a4 g4 h5 g3 e6 b5 e7 h6 e8B d4 Be2 d3 Na3 g2 Be3 d2 Ra2 Qd7 Nb1 Ne7 Nh3 g1Q Rh2 Na6 Nf2 Qe1 Bd4 Rh7 Bc4 Nc6 Qf3 Nc5 Ng4 d1N+ Ka1 Be7 f8N Ne3 f7 Nf1 f6 Nb3+ Kb2 Rc8 Ng6 Bc5 f8Q Na1 Ne7 Rg7 Bef7 Qee6 Ng8 Qee8 Bfd5 Rb8 f7 Ra8 Na3 Rh7 Be3 Rd8 Kb1 Kc3 Bf2+ Kd2 Bd4+ Ke1 c3 b4 Rag2 Rb8 Ka2 Rb5 Nb1 b3+ Kb2 Rb4 Ka3 b2 Ka2 Qe5 Qb8 Qee8 f8N Rb6 Ng6 Rb5 N6e7 Rb6 Nc8 Rb4 Nd2 b1Q+ Ka3 Qbe4 Ka2 Rb1 Nb6 Rd1 Nb1 Rd3 Qf5 Rg3 Nf2 Rgg7 Qf3 Qec8 Ng4 Qee8 Be4 Qb7 Rc2 Nd2 Qh3 Qec8 Bh1 Nf1 Rcg2 Qce8 Qf3
2RB3K/q1PkQQRb/r6N/Pr1rnR2/pb4r1/4p3/P3PB1B/1N4rB b - - 0 2 illegal: No possible last move, all moves rejected
1n4RN/Q1bN4/P1P4p/1BbK1p1n/QBBn3P/n4PQ1/1B1R2qr/1kn5 b - - 1 2 legal: proof: d4 a5 b4 c5 bxa5 b5 dxc5 d5 e3 d4 e4 Ra6 g4 Rd6 g5 Rd5 exd5 Bh3 Be2 Be6 Bf1 Bc8 g6 f6 Bg2 Be6 Bf1 Bf7 gxf7+ Kd7 Kd2 e5 Kd3 g5 Ke4 h6 a4 b4 h4 g4 c4 g3 f3 b3 d6 Ke6 a6 g2 d7 d3 c6 d2 a7 b2 a8Q Qc7 d8Q Bc5 f8B Qg7 Na3 b1N Nh3 g1B c7 Bh2 a5 Qg2 Qa4 d1N a6 Ne3 Ra2 Nc2 Rg1 Nd4 Bb2 Bg3 Qa7 f5+ Kd3 Rh7 c8B+ Rd7 Qdc7 e4+ Ke3 Bgd6 Ng5+ Ke5 Bd3 Rg7 Bd7 Nf6 Bb5 Rg6 Qg7 Bc7 Qg8 Nh5 Nf7+ Kf6 Nh8 Ke5 Bf1 Rg3 Bd3 Rh3 Qg4 Rh2 Be2 Be7 c5 Kd5 c6 Bc5 Nc4 Na3 Nb6+ Ke5 Kd2 e3+ Kd3 Bd8 Qb4 Bc7 Nd7+ Kd5 Bf1 e2 Qa4 e1N+ Kc3 Nd3 Qg3 Nc1 Be7 B5b6 Bb4 Bc5 Qf2 Qh3 Rg8 Qg2 Bfc4+ Kd6 Nb6 Ke5 Nd7+ Kf4 Qg3+ Ke3 Bb3 Nac2 Kc4 Ke2 B4a3 Kd2 Kd5 Kd1 B3c4 Kd2 Qa5+ Kd1 Bb4 Na3 Be1 Kc2 Qa4+ Kb1 Bb4 Ndb3 Ba1 Nd4 Rd2 B5b6 Bac3 Bc5 Bb2
1RKQ4/2NpPPBb/1B1b1NN1/2p5/5R1r/k1B1nB2/Pb1P2Q1/b1b2qn1 b - - 0 1 illegal: Other
8/B4r1n/RN1KN2p/1p2nR2/1P6/b1NPPn1B/rkPNqQ2/rQ3B1r b - - 0 1 illegal: No proof kernel
4N1Q1/Q1r1bRqr/1N5B/2p1kP1B/br1P1n2/Qp2K2b/1P1BP3/Q4R1b b - - 0 1 illegal: No possible last move, all moves rejected
1NRr4/R1b1QP2/N1B1P1bR/kP4b1/2R1rB1q/Kp1b1Q2/1P1n1p2/2rQ4 b - - 0 1 illegal: No proof kernel
1KN3q1/P2pR1r1/R5b1/P6p/RnBkr3/3r1QQP/nR1P3B/2nr2NQ b - - 0 2 legal: proof: g4 f5 b4 b5 e4 a5 bxa5 e6 c4 Qh4 cxb5 Nc6 e5 Qd8 gxf5 Be7 f4 Bf6 exf6 Nb8 Ke2 Kf7 Ke3 c5 Ke4 h5 Ke5 g5 Kd6 e5 a4 g4 b6 g3 a6 e4 a7 c4 h3 c3 a5 g2 b7 c2 Nc3 e3 Ra4 e2 Nd5 e1N Bc4 Qe7+ Kc7 Qf8 Bb2 c1R Be5 Nc6 b8R Nge7 Rb2 Rc3 Rh2 Rd3 Nb6+ Rd5 Qb3 Nb4 Qg3 Ba6 Nc8 Rh7 Rh1 Rg7 Bd6 Kg8 f7+ Kh7 f6 Nec6 f5 Ned3 Be5 Qg8 f8Q Nc1 f7 Nba2 f6 Ncb4 Qe7 Rb8 f8R Rd3 f7 Bb7 Re8 Be4 f8Q Bg6 Qff3 Rb6 Qeh4 Re6 Kb8 Kh6 Bc7 Re4 Re6 Kh7 Ra6 Kh8 Ne2 g1R Bf4 Rf1 Ng1 Rd1 Qe1 Kh7 Bh2 Kh6 Qhf2 Kg5 Qef1 Rf4 Q2g3+ Kf5 Q1g2 Ke5 Ne2 Nc2 Re1 Ncb4 Ng1+ Kd4 Re7 Re4 Qh1
k4q2/1rp1QBR1/n4qr1/2NpP3/KbPP1R2/1P1rB1b1/N4BBR/1r1Q4 b - - 0 2 legal: proof: g4 b5 f4 g5 a4 f5 axb5 e5 fxe5 f4 Ra3 Bb7 Ra4 Na6 Ra1 Be4 h3 Bf5 gxf5 g4 h4 Nc5 Rh3 Ne4 Rh1 Ng5 hxg5 Bh6 Nf3 Bg7 Ng1 Bf8 e4 a5 c4 d5 b3 Kd7 b6 Kc8 b7+ Kb8 f6 h5 e6 f3 f7 a4 e7 a3 e8Q g3 g6 h4 g7 h3 Rh2 g2 Nc3 a2 Qe7 Nf6 g8B Nd7 Na4 Ra7 Ne2 g1R Nc5 Rg6 Nc3 f2+ Ke2 Qe8 Bg2 f1Q+ Ke3 Qf3+ Kd4 Qf6+ Kd3 Rh5 Kc2 Rhg5 Kb2 Rg3 e5 Rd3 Rb1 Bh6 f8B Bf4 Bf7 Bg3 Bh6 Qc8 Be3 Qf8 Bf2 a1B+ Kc2 Qg5 Na2 Bc3 Ra1 Ba5 Kb2 Qf6 Ka3 Bb4+ Kb2 Rf3 d4 Rc3 Bce3 Rd3 Rh1 h2 Rf1 Ba5 Ka3 h1R Ka4 Rg1 Rc1 Rh1 Rc2 Bb4+ Kb5 Ra6 Re2 Rb6+ Ka4 Ka7 b8R Rb7 Rd8 Nb8 Rd7 Rg1 Be1 Na6 Rf4 Ka8 B1f2 Qc8 Rd8 Re1 Rg8 Qf8 Rg7 Rh1 Qd2 Rb1 Qd1 Ba3 Re1 Bb4 Rh1 Qg8 Rh3 Qf8 Rh2
2bR1Q1B/qn2R2k/q3rb2/nP4Q1/5pPq/6qp/B1P2PRN/RK3NQ1 b - - 0 1 legal: proof: e4 c5 a4 g5 h4 d5 hxg5 b5 axb5 a5 d4 Ra6 dxc5 d4 Qe2 Rd6 Qd1 Rd5 exd5 Bg4 Rh3 Bf5 Rh1 Bc8 Kd2 h5 b4 e5 g4 f5 b6 Kf7 g6+ Kg7 b7 f4 b5 e4 d6 a4 d7 e3+ Kd3 e2 c6 e1Q c7 h4 Bd2 h3 Bc1 a3 Nd2 a2 Bb2 Ne7 Ngf3 Nf5 Rh2 Qe6 Rg2 Be7 Nh2 Nc6 b8R Re8 Rb7 Na5 Ra7 Kg8 g7 Bf6 Bc3 Qde7 d8R Kh7 Qb1 Qa6 g8Q+ Kh6 Bb2 Nd6 Qg5+ Kh7 Be2 Ndb7 Ndf1 Qa3+ Kd2 d3 Kc1 Re6 Bf3 Qb3 Bd5 Qa3 Bc4 Qe7 Bc3 d2+ Kb2 d1Q Bd4 Bd7 c8Q Qd3 Qcc5 Bc8 Kc1 Qe8 Qf8 Qg3 Kb2 Qh5 Qd1 Be7 Bh8 Qhh4 Kc1 Nc5 Rc7 Ncb7 Qe1 Rd6 Bf7 Bf6 Re7 Qa7 Rb1 a1Q Ba2+ Bg7 Qd1 Re6 Qe1 Qa6 Qd1 Qd4 Ra1 Qc5 Kb1 Qca7 Nd2 Qf3 Qg1 Qfg3 Ree8 Bd4 Ndf1 Bf6 Re7+
Q2QN1kR/Nn4B1/b4PqB/4Pr1r/1p1Kp1R1/8/1rQ1PPn1/r1qBQ3 b - - 0 1 illegal: No proof kernel
1Qb2qQ1/1rPP2B1/2r2qR1/p1p1bbRN/k1K1N1B1/P2N3b/2RP3n/N7 b - - 0 1 legal: proof: e4 c5 b4 g5 h4 f5 hxg5 d5 exf5 d4 b5 Nc6 bxc6 d3 cxd3 Rb8 d4 Ra8 d5 Be6 Rh6 Bd7 Rh1 Bc8 Ke2 b5 Kd3 a5 f4 e5 g4 h5 g6 h4 g5 b4 a3 e4+ Kc4 e3 g7 h3 c7 Kd7 g6 h2 d6 Kc6 f6 b3 d7 b2 f7 e2 f5 e1Q f6 Kb6 Nh3 Qf2 Rg1 h1B Nc3 b1B Ne4 Rh6 Ra2 Ra6 Be2 Be7 f8N Rh7 f7 Bg2 Rc2 Rh5 Nh7 Ra8 f8N Nf6 g8Q Qe3 g7 Rd5 Nf4 Bd6 Bg4 Be5 Nd3 Qf2 Bb2 Ra7 Ne6 Qf8 Nd4 Rd6 Nb3 Rc6 Na1 Rb7 Bd4 Ka6 Qc1 Bh3 Qb2 Nd5 Nhf6 Ne3+ Kc3 Qf3 Nh5 Nf1 Kc4 Nh2 Rg2 Q3f6 Bc3 Ra7 Qb8 Rb7 Qd5 Rb2 g8R Rb7 Rg6 Kb6 Qg8 Ka6 Kd5 Kb5 Rg3 Ka4 Kc4 Rcb6 Be6 Ra6 R3g5 Rc6 Bg4 Ra7 Nb4 Qf5 Nef6 Bd4 Ra2 Rb7 Bb2 Be4 Nd3 Qe5 Bc3 Bf5 Rc2 Qee7 Ne4 Bh8 Bg7 Qd6 Bh6 Be5 Bg7 Qde7 Qa7 Qef6 Qb8
R1K3bR/B1N1N1NR/3p2B1/2Pnn3/2q1P3/2PPb2Q/k1Qpb3/Nb4qr b - - 0 1 illegal: Other
3rr1R1/5PBN/2Qp3Q/4kn2/Rr1q1RN1/rP4Pp/1bRP2Bq/1B3Kn1 b - - 0 1 legal: proof: b4 g5 h4 f5 hxg5 b5 a4 f4 axb5 f3 exf3 Ba6 f4 Bb7 f5 Bd5 Na3 Bc4 Nb1 Bb3 cxb3 Bh6 Qg4 Bg7 Qd1 Bf8 f4 Kf7 f6 Ke6 b6 a5 b5 c5 f7 h5 b7 h4 g6 h3 g3 d6 b6 c4 f5+ Ke5 g7 c3 f6 c2 Qf3 a4 Qc6 a3 Nc3 a2 Bb2 Nd7 b8Q Ra3 b7 Qb6 Bg2 Nh6 g8B Nf5 Ne4+ Qd4 Bh7 Bg7 Kf1 Rd8 f8R e6 Rc1 a1R f7 Ra4 Rg8 Rb4 Nf6 Ra3 Qbc8 Bh8 b8R Bg7 Ra8 Bh8 Rd1 c1Q Ra4 Qb1 Rc1 Qd3+ Ne2 Qe3 Nf4 Qg1+ Ke2 Qh2 N4h5 Bg7 Kf1 Qc3 Ke2 Kd4 Ne8 e5 Rc2 e4 Rcc1 e3 Rhf1 Nh4 Bb1 Ne5 Rc2 Nef3 Qe6 Nf5 Qh6 Ng1+ Ke1 e2 Rf4+ Kd3 Kf2 e1R Ba1 Ree4 Kf1 Kd4 Nc7 Bh8 Ne6+ Kd3 Nf8 Ree8 Nh7 Qc4 Bf6 Qc5 Be7 Bb2 Bf8 Qd4 N5f6 Qa7 Rf3+ Kd4 Bg7 Ke5 Rf4 Qd4 Ng4#
B1b1B3/b7/q5b1/PQ2p1p1/1kP5/nBR1P1RN/qb2r1PB/1Nq2QQK b - - 0 1 illegal: No proof kernel
k2N2B1/4rqpK/1Nr4n/pqPrQP2/Rb2B3/P1B1r1PN/5N2/2qQ1R2 b - - 0 1 illegal: No proof kernel
4R3/r2k2BN/1QB1bbBq/1b3Q2/QpN2P1b/PP1p4/B2Prrb1/3K1R2 b - - 0 1 illegal: No proof kernel
2n1Q3/1n6/2BBNRNp/q1p1nPN1/R5R1/1KP4N/Q1rb1pPP/5rbk b - - 0 1 legal: proof: e4 b5 d4 f5 f4 g5 fxg5 e5 dxe5 f4 a4 Bb7 axb5 Bd5 Qf3 Be6 Qd1 Bf5 exf5 Kf7 Kf2 Ke7 Ke1 Ke8 Kd2 Ke7 Kc3 d5 b4 a5 g6 d4+ Kc4 h6 e6 Kf6 e7 Ke5 e8N Ke4 g7 d3 b6 f3 b7 d2 b5 a4 b6 a3 Nc3+ Ke3 Nh3 a2 Kb3 Na6 b8N Bb4 b7 Ne7 g8R c6 Nd7 Nc5+ Kc4 Qc7 b8Q Nb7 Rg4 c5 Rb1 a1B Ng7 Re8 Ne5 Ra2 Ng6 Qa5 Ne4 Bd4 Neg5 Bbc3 Qd8 Nc8 Rb6 Re4 Kb3 Rf4 Rf6 Bb4 Ng1 Kf2 Qe8 Be3 Bb2 Bc3 Qa1 d1N Bb5 Bcd2 Be5 Nb2 c3 Nc4 Ba4 Rc2 Bd6 Ne5 Qb2 Kf1 N7e6 Bf2 Bc6 Bd4 Ne2+ Kf2 Ra1 B4e3 Nc1 Kg1 Ra4 Kh1 Ne2 Bg1 Qa2 f2 Ka3 Re4 N2f4 Re1 Kb3 Rf1 Nfh3
n5q1/1Qr1Bb2/B1PP1r2/3pbPb1/2BR1Pk1/1nK1Qp2/RNB1pR2/4N3 b - - 0 1 illegal: No proof kernel
2Qr4/N1BNN2K/1p3PRn/PR3k1r/1qp1b1b1/1P6/1pP2N2/Q3rBQn b - - 0 1 illegal: Other
Q5R1/r1p1p3/1Bp1B2N/bPq3Pr/K2nkPNR/6P1/3QQnb1/4R1rR b - - 0 1 illegal: Other
r1r5/bP1pn1k1/QB2P1BR/N4PR1/Rp1pqQR1/1n5P/4r3/2N1B1Kb b - - 0 1 illegal: Other
5Q2/qPp1rb2/P3BB1R/3N2P1/3pr1Qr/1K2Q1P1/1b2N1pn/NN1k1Rn1 b - - 0 1 illegal: No proof kernel
5bkN/1pBP1B2/N1bPrbB1/6n1/nP2Q3/1N3p2/pQ1KP3/Rq1B1rR1 b - - 0 1 illegal: No proof kernel
2R5/P3n1rQ/p1bPPqN1/8/pNKnQ1Bp/2Pn2b1/RR1r1B2/1B2Rk2 b - - 0 1 illegal: Other
2B4Q/PnQ1KP2/Bk2RBB1/3p1rbn/3rN3/2p5/1q1pPNPQ/bR3b2 b - - 0 1 illegal: Other
Q2B2bK/p3b1PQ/kB1q4/5B1P/6PQ/pPb1rn2/1nBRNp2/N2rR3 b - - 0 1 illegal: Other
Kn1RB3/B7/p1P2pq1/3R1PP1/P1rQ1b1Q/QrNp2R1/4Q3/N2bnq1k b - - 0 1 legal: proof: d4 b5 h4 c5 b4 e5 dxe5 g5 hxg5 Qf6 bxc5 Be7 c4 Bf8 cxb5 Qd8 Kd2 Ke7 Kc3 Ke6 Kc4 Kf5 Kd5 Kg4 a4 h5 f4 Kg3 e4 a6 f5 h4 g6 f6 e6 h3 g7 h2 e5 d6 e7 Qe8 e6 Qd7 e8R Kf2 g4 Be7 b6 Ra7 b7 Qc7 Qd4+ Kg3 Nc3 Qd8 Ra3 Ra8 Be3 Ra7 Nge2+ Kf3 Nc1 Nh6 g8Q Nf7 Bb5 Kg2 Nb3 Rh3 Rd1 h1Q Na1 Qf1 g5 Ne5 Qf8 Qc7 Rd8 Nd3 Be8 Ne1 c6 Kh1 Qg4 Ra8 Ba7 Rh4 Kd4 d5 Rd2 Bb4 e7 Ba5 Kc5 d4 Rd5 Qd7 Rb3 Bb4+ Kb6 Bd6 Rd3 Bh2 Rg3 d3 Rbb5 Qe6 Rd8 Qg8 Rbd5 Be6 Kc7 Nd7 b8Q Qg6 Qbb4 Rb8 Qbd4 Rb3 Kc8 Nb8+ Kc7 Ra3 Kb7 Rb3+ Ka8 Bg8 Bd7 Be6 e8Q Bf7 Qee2 Bg8 Rg2 Bf4 Qa3 Bf7 Be8 Be6 Rc5 Bd5 Rg3 Bf3 Qee3 Bd1 Rcd5 Rh2 Qe6 Rc2 Qee2 Rc1 Na2 Rc5 Nc3 Rc4 Qh4+
kRB5/B1pP1P2/b3R3/1NP5/RK1R2q1/PnN1pr2/rp4qb/nN2Q2Q b - - 0 1 legal: proof: g4 a5 h4 g5 hxg5 d5 b4 f5 gxf5 d4 bxa5 d3 exd3 Nh6 d4 Ng8 d5 Qd7 Bd3 Qd6 Bf1 Qd8 d4 Kd7 Kd2 b5 Kc3 h5 f4 e5 a6 h4 g6 e4 f6 h3 f7 h2 a7 Bg7 f8N+ Kd6 f5 Bf6 g7 Bd7 Be3 Rh7 Kb4 Be6 c4 Qc8 Ne2 Rh3 Nec3 Bh4 f6 Bg3 f7 Ne7 g8R Nd7 Qe1 Nf5 Rg1 Be5 R1g6 Rf3 Bh3 h1Q Bg4 Bh2 Rh8 Rb8 a8Q Nc5 Rh4 Nb3 a3 Ke7 d6+ Kd8 d7 Qg2 d5 Nfd4 Rf6 Bf5 Re6 Rb7 Ra2 Na1 Rd2 Ndb3 Ba7 e3 Rd4 Bd3 c5 Rb6 Rhh6 Rb8 Ra6 Rb6 Ra4 Rbf6 Bh3 Rf2 Qc6 R6f3 Bf5 Ra2 Ne6+ Ke7 Qa8 Qcg8 d8R Q8g4 Rb8 Kd7 d6 Bf1 Qe4 Bc4 Qd3 Kc6 Qdf1 Be2 Qh1 Bf1 Ng5 Bd3 Nge4 Bf1 Rd8 Kb7 Bc8+ Ka8 d7 Nc1 Ka5 b4 Nb5 b3 Kb4 b2 Nec3 Ncb3 Rb6 Be2 Re8 Bf1 Ree6 Bc4 Nd6 Ba6 Ndb5 Qf5 Rb7 Qfg4 Rb8#
1Q2n3/1PBnbPPq/1r2Pk1Q/1N4qp/2p5/2N5/K1bRBp1Q/1rR2BB1 b - - 0 1 illegal: No possible last move, all moves rejected
6k1/1PNbp3/N1b1P3/pN3rn1/RP4r1/BpqqP1Q1/3nRBB1/1B1Q3K b - - 0 1 illegal: No proof kernel
5qRQ/N1Q2b2/5K1P/1QPk4/2p4B/2p1npnR/bbP2rnP/R4BNQ b - - 0 1 illegal: Other
8/2K5/RNQpR3/1Nk1P2B/ppbn1nBB/1PPbq2Q/R2P1br1/n3R3 b - - 1 2 legal: proof: g4 a5 f4 h5 gxh5 c5 b4 e5 fxe5 Ra6 bxc5 Rb6 Ba3 Rb5 Bc1 Rb3 axb3 b5 Ra3 Rh7 Ra1 Rh8 Kf2 Ke7 Kg3 f5 Kf4 b4 h4 a4 e4 g6 h6 Rh7 h5 Rf7 e6 g5+ Ke5 f4 c6 f3 h7 g4 h8Q f2 h6 g3 c7 g2 h7 Rf6 Be2 f1B Bb2 Rf7 Nc3 Rf2 Nf3 g1N Nd4 Rh2 Qc1 Nh6 Nd5+ Ke8 e7 Ba6 Kd6 Nc6 c8B Qb6 Ra2 Bd3 Nb5 Ng4 Bf6 Nh3 e5 Nf4 Bh4 Qe3 Nb6 Rg2 Kc7 Nd4 c3 Kf7 e8R Bc5 Re6 d6 Bf3 Bfe2 Re1 Bc4 Qb1 Bed3 Qa1 Qe4 Bd1 Ne3 Bg4 Nec2 Bh5+ Ng6 Qd1 Na1 Qf3+ Qf4 Qc6 Qe3 Rf6+ Ke7 Bcg4 Nf4 Qc8 Bg8 h8R Bd5 Qf5 B5c4 Nd7 Ba7 Ra8 Bc5 Ra6 Ba7 Bd1 Bc5 Qh3 Ba7 Rf5+ Ke6 Bdg4 Bc5 Qb6 Kd5 Rf6 Bh7 Re6 Bhd3 Qb8 Ba7 Nb6+ Kc5 Qe8 Nde2 Nd7+ Kd5 Qg6 Qf3 Re8 Bf2 Nb6+ Kc5 Qe4 Nd4 Re6 Qe3 Qc6+
7Q/3nRb1p/NnK1n1Pq/B2P2R1/1Q1Pp1BP/3kN1rp/r2Q1r2/1B1B4 b - - 0 1 illegal: Other
1BQ1r2b/R5p1/R1K3p1/r1p1qPk1/n2r1n1P/3P2P1/1nBQ1B1N/2N1R2R b - - 0 1 illegal: Other
QB2Nb1K/4pB2/PnP1nQ2/rbppB2R/bN1n3q/2N4k/2RP2P1/B7 b - - 0 1 illegal: Other
2qB2b1/2R2br1/rpp3k1/PPNr4/3BRp2/bB2N1N1/BPP4n/1Q4KQ b - - 0 2 illegal: No proof kernel
N1N4b/1nkq2PK/nqbp1PrP/1R1PQp2/5nB1/6p1/5QBR/B3Q2B b - - 0 1 illegal: No possible last move
rqB2B2/pkbPn1Nb/N2Q4/RK6/3R4/1pq1pP1Q/BP2PrB1/1r3Q2 b - - 1 2 illegal: No possible last move
1R1NR1q1/p3rp2/PR3Qq1/nb1Np1N1/P2P4/4B1bK/n2bk1P1/Q2R1B2 b - - 0 1 illegal: No possible last move
2NbK1R1/q1b1RQ1P/p2r2P1/P1B2PrB/2NNb1pp/3q1Q2/8/1n1RkN2 b - - 0 1 illegal: No proof kernel
QBRr4/3rkrp1/nN6/2Pp1PPR/1pQ1Bn1b/q2qR1P1/3R1K1Q/2N5 b - - 0 1 legal: proof: e4 c5 b4 a5 bxa5 f5 exf5 b6 d4 Ba6 dxc5 Be2 h3 Bg4 hxg4 Qc8 Rh5 Qc7 Rh1 Qd8 f4 d5 a4 h5 c4 e5 f6 h4 g3 h3 a6 e4 a5 b5 c6 h2 f5 b4 c5 e3 a7 e2 a6 Qc8 c7 Bd6 f7+ Kd7 f8R Rh3 Na3 Rh5 Qd2 Be7 Kf2 e1R Ne2 Nh6 Re8 Qb7 c8R Ng8 Ra2 Rh6 Nc4 Qb5 Bg2 Nf6 Be4 Nh5 Qd4 Rb6 Bf4 Rb7 Nc1 Bh4 Rd2 Re3 Bc7 Nf4 Qb2 Qa5 Qc2 Qa3 Nb6+ Kc6 Qc4 Re1 Bc2 Re7 Be4 Rf7 Re5 Nd7 Bb8+ Rc7 Re1 h1Q g5 Qh3 Ree8 Qg4 Red8 Qd1 Rh8 Qc2 Rh5 Qcb3 Re3 Qd3 Rd8 Rb7 Bc7 Rc8 a8Q Nb8 a7 Na6 Rdh8 Rg8 Qe8+ Rd7 a8Q Rf8 Qe5 Rfd8 Qb2 Rf7 Bb8 Rfd7 Qbc2 Rf7 Nc8 Kd7 Nb6+ Ke7 Qb2 Rdd7 Rc8 Rd8 Qbc2 Rbd7 Qd1 Kf8 Qg1 Ke7 Qh2
4NnK1/1p6/1PR2pnk/q1P2B2/q1R1PPQp/BQR4b/NrQ5/b4Qq1 b - - 0 2 legal: proof: d4 a5 h4 c5 a4 g5 hxg5 e5 dxe5 Ra6 b4 Rb6 bxc5 Rb5 axb5 Qb6 Rh5 Qf6 Rh1 Qd8 Kd2 h5 Kd3 d5 Kd4 f6 g4 Kf7 e4 Kg7 c4 h4 f4 a4 g6 a3 c6 a2 e6 Ne7 c7 Nd7 c5 Rh6 g5 Nb8 b6 Nd7 Nf3 Rh7 Bh3 Rh8 Qf1 Nb8 Nc3 Nd7 Ne5 Rg8 Nc4 Ne5 Nd6 Nd7 Ba3 Rh8 Rc1 a1Q Bf5 Qb2 Ne8+ Kg8 g7 Qb5 Na2 Ng6 e7 Kh7 Rh3 Rg8 Rc4 Qa4 Rc3 Qa5 Nd6 Qa4 e8Q Be7 Qf7 Nf8 Ne8 Bd6 Qd7 Qa5 Qa4 Qd7 Qad1 Qda4 Qc2 Be6 c8R Bd7 Rc6 Be5+ Ke3 d4+ Kf3 d3 Kg4 d2 Kh5 Ne6 Nd6 Rd8 Ne8 Kg8 Kh6 d1Q Nd6 Qg4 Ne8 Kf7 Kh7 Qg1 Qce2 Bc8 Qc2 Rd2 g8Q+ Ke7 Qh8 Nef8+ Kg8 Bd4 Qh5 Rf2 Rg3 Ba1 Qhd1 Rh2 Qb3 Rb2 Rgc3 Nh8 g6 Bd7 g7 Nhg6 Bg4 Bf5 Qdc2 Bd7 Bh5 Bh3 Bg4 Ne5 Kh8 Kf7 Bc8 Kg6 g8Q+ Kh6 Qg4 Neg6+ Kg8 Qg2 Be6 Qg1 Bf5
1k1BR3/qP1Q2Nb/1pPQnBPK/2B2q2/1Pr3p1/pn1N3B/R2n4/R5r1 b - - 0 1 illegal: No proof kernel
2K2k2/NPQ2N1R/p1P2Qbr/2n4P/PQ1p1B2/q4Rb1/1R1rp3/qB3q1R b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 exf5 Na6 c4 Nc7 cxb5 c4 Qd3 Ne6 Qd1 Nc5 dxc5 Qc7 Bf4 Qb6 Bc1 Qd8 Kd2 d5 Kc3 e5 Kb4 g5 f4 c3 h4 c2 a4 d4 b6 e4 Kb5 e3 Kc6 a6 b4 g4 b5 g3 b7 g2 b8Q Ra7 h6 Rf7 b6 Bg7 h5 Re7 b7 Rd7 h7 Kf8 f6 Qe8 f5 Qe7 f7 Qd8 Qe1 Qg5 Nh3 g1Q Qc7 Bh6 Ra2 Qg7 Rb2 Q7g5 Bd3 e2 Qb4 Q1g4 Bf4 c1Q Nc3 Qf1 Nb5 Qe7 Ng5 Qgg1 Na7 Nf6 Bb1 Ne4 Kb6 Rd6+ c6 Rg8 h8R Nc5 Rh7 Bg7 Qd7 Rh6 Kc7 Bh8 Kb8 Be5+ Qd6 Bd7 Qc7 Be8 Kc8 Qd6 Nh3 Rg3 Ng5 Nd7 Bc1 Rd3 Bf4 Ke7 f8R+ Bf7 Rhh8 Bg6 Nf7 Rd2 Rh7 Qc5 Qb3 Qa3 Qb4+ Bd6 f6+ Ke6 Nh8 Nc5 f7 Be5 Rd8 Bd6 f8Q Be5 Nf7 Kf6 Be3 Bg3 Bf4 Ke6 Be4 Qfa1 Bb1 Kf6 Re8 Qg2 Re3 Qf1 Rf3 Ke6 Rh8 Kf6 Qfe7+ Kg7 Rh7+ Kg8 Qee5 Kf8 Qf6
1BbQ2Bn/5kBp/q3Rb2/P2N1p2/1qP4P/BNP5/r1RKpqQ1/3n1N2 b - - 0 1 illegal: No possible last move
B2r1Nn1/qr3PPp/P1K3n1/BQN1B1q1/R6P/p1p2R1k/1B2QR2/b2n4 b - - 0 1 illegal: No proof kernel
B1b2NR1/K4Q2/P1rp2q1/R1p1pPB1/3N1qR1/6P1/2PnR2k/2nQb1nN b - - 0 1 legal: proof: e4 c5 b4 a5 bxa5 f5 exf5 g5 d4 b5 h4 Na6 hxg5 Nb8 d5 Ra6 Rh3 Rh6 Rh1 Rc6 dxc6 Qb6 Bc4 Qc7 Bf1 Qd8 Kd2 Kf7 Kd3 e5 a4 h5 f4 h4 g3 d6 a6 b4 Kc4 b3 Kb5 h3 f6 Ke6 f7 Kf5 g6 b2 a5 h2 c7 Rh7 Kb6 Bg7 f8N Bh6 g7 Ne7 g8Q Ng6 a7 Qg5 a8R Na6 Ne2 Kg4 f5 Nh4 Ka7 Qg6 Nbc3 b1N Bg5 Nd2 Qf7 Nhf3 Bg2 Nb4 a6 Na2 Re1 h1Q Ne4 Qh4 Nd4 Nc1 Re2 Ng1 Ra5 Rh8 Bh1 Kh3 Nf2+ Kh2 Rb8 Qf4 Rb4 Bb7 c8R Rg8 Rb8 Bc8 Ba8 Rg7 Qb7 Rc7 Rba4 Rc6 Qf7 Qe3 Nh1+ Qf2 Bh4 Bf4 Bg5 Be3 Re1 Qf4 Re2+ Bf2 Nh7 Bd7 Rg8 Bc8 Nf8 Qf3 Re4 Be1 Rg4 Qf2 Ra3 Qf3 Re3 Qf4 Re2+
N1b5/1pPpPR1r/Bn1P3Q/BQP1k3/1K6/2p1n1bQ/3RB2N/r3brB1 b - - 0 1 illegal: No proof kernel
5b1Q/r1kP2Rp/q5R1/QBp4P/NP3pN1/2rbP1B1/1B1R4/bR1Kn2b b - - 0 1 legal: proof: d4 b5 f4 d5 a4 g5 axb5 e5 dxe5 d4 fxg5 Nc6 c3 Nce7 c4 Nd5 cxd5 Bg7 Nh3 Bh6 Ng1 Bf8 h4 Kd7 b4 a5 g4 f5 d6 c5 e6+ Ke8 h5 d3 e7 Kd7 g6 a4 b6 a3 g5 a2 e3 Qe8 g7 Qg6 b7 Qf6 b8B Ra6 g6 Rc6 Nh3 Nh6 g8R Qe6 g7 Ra6 Rh2 Bb7 Rd2 Ra7 Nf2 Ng4 Nc3 Bh1 Na4 Nh2 Rb1 a1B Ng4 Qa2 Qe2 Nf3+ Kd1 Ne1 Bb2 Qc4 e8R Qa6 Re6 Kc8 d7+ Kd8 Rc2 d2 Bg3 f4 Qb5 Kc7 Rd6 Ng2 Rg6 Ne1 Ke2 d1B+ Kd2 Qb6 Qa5 Be2 Kc1 Bb5 Kd1 Bd3 Rd2 Be7 Re8 Bf8 Re7 Rg8 Qa6 Rh8 g8Q Qc6 Qb5 Qa6 Qg7 Rg8 Qh8 Rg7 Rf6 Rg5 Rg7 Rd5 Rfg6 Rd4 Be2 Rc4 Bf1 Rc3 Be2 Bf5 Bc4 Bd3 Qa5+ Kb7 Bb5 Kb8 Rb6+ Kc7 Rbg6+
B1R1q2N/bb1b1rbB/1P3p1p/2nQP1Q1/3KRpRn/2B5/3P1PR1/k3N3 b - - 0 1 illegal: Other
4K2Q/2kp1RrR/Q1qp4/3B1Nn1/rB3p1n/P2P1P2/3PBN1R/nb3R1n b - - 1 2 illegal: Other
1K1R2n1/pp3bB1/1rPnk2P/n1B1N3/2BR1npN/1P1B2Q1/P5R1/Q2rq3 b - - 0 2 legal: proof: f4 c5 g4 h5 gxh5 e5 e4 f5 exf5 e4 d4 Bd6 dxc5 Be5 fxe5 Rh6 Bh3 Rh7 Bf1 Rh8 Ke2 Kf7 Ke3 g5 Kd4 d5 h4 g4 c4 e3 b3 e2 c6 e1N Kc5 d4 h6 d3 h5 d2 e6+ Ke7 c7 Nf6 h7 Nf3 h6 Ng8 f6+ Ke8 e7 Kf7 e8B+ Ke6 f7 Bd7 f8Q Bb5 c8R Ne7 Rh2 Bd7 Bd3 Ng6 Na3 Bc6 Qf4 Bb5 Rg2 Qa5 Qg3 Nfh4 Nf3 Rf8 h8B Nf4 Rd8 Nhg6 Bg7 Ne7 Nh4 Rf6 Bb2 Rg6 Bbd4 Ng8 Bc6 Ba6+ Bb5 Nc6 Qg1 Qc3 Rd1 Na5 Q1e1+ Kf7 Qe5 Rb6 Be3 Qc1 Qa1 Qb1 Rd4 Re8 Bg1 Re1 Be3 Ne6+ Kd5 Nf4+ Ke5 Qc1 c5 Rg1 c6 Rf1 Re1 d1N Kd6 Nb2 Kc7 Nbc4 Rd1 Nd6 Kb8 Ke6 Nc4 Re1 Rdd2 Rd1 Ne5 Qb1 Ba4 Bc4 Bb5 Ne8 Rd8 Nd6 Bc5 Bd5 Bdc4 Qe4 Rd4 Qe1 Nd7 Ke7 Ne5 Bf7 Bd3 Ke6 Bbc4+
r5nn/p1R1N1bB/2r2R1P/B2bQN2/p1QR4/1Pb1p2k/3BPP2/b1R2K2 b - - 0 1 illegal: Other
1bR2r2/N5p1/4NnQP/P2n3N/2Q4B/3pB1n1/pK1P1rbP/2N1RBnk b - - 0 1 illegal: No proof kernel
3b4/QNR4Q/1p6/nB2Pr1Q/2bP3p/3Nb3/rb1PpBRP/1Kn1N1Nk b - - 0 1 illegal: No proof kernel
1n4r1/pnN1p3/B1rBB3/1P2b2P/Nb1bQN2/Q2KPRRb/1p3P2/B6k b - - 0 1 illegal: No proof kernel
bQ4K1/p3qNBr/n1RRN3/3R4/3pB1Qb/2PPP2R/PNp5/qq2bk2 b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 gxh5 b4 c4 Na6 Qa4 c5 Nf3 Nc7 Bg2 Nb5 cxb5 c4 Bf1 c3 Qd1 c2 Ng1 Rb8 Bg2 Rb7 Bh3 Rc7 Bf1 Rc3 bxc3 Qb6 Bg2 Qf6 Bf1 Qd8 Kf2 Ke7 Ke3 Ke6 Kd4 Kf5 Kd5 Kg4 h4 Kg3 h6 Kf2 e6 g5 h7 f5 h5 f4 b6 g4 b7 b3 b8Q b2 e7 f3 e8R g3 h6 g2 Rh5 d6 Nh3+ Kg3 Ng5 Kf2 Ne6 g1B Na3 b1Q Bg2 Qb2 Nc4 Qbb6 Nb2 Be7 d3 Bh2 Rb1 Bh4 e3 Qd7 Rd8 Qe7 Re5 Bd7 Rc8 Be8 Rc6 B2g3 Qg1+ Ke2 Rf5 f2 Be4 f1Q Qg2+ Bf2 Qg4+ Ke1 Nc4 Qbd8 Ra6 Qec7 Ng7 Qb7+ Ke6 d5 Rbb6 d4 Rd5 Ne7 Ba3 Nc6 Bf8 Nb4 Rbd6 Bg5 Rab6 Bd7+ Kf7 Na6 Ne6 Be7 Bg7 Bc6 Rbb5 Qbb6 Rbc5 Ba8 Rc8 Qb2 Rcc6 Qa1 Nb2 Bg3+ Bf6 Kf2 Be5 Qfb1 Bg7 Rg8 h8N Kf1 h7 Be1 Bf8 Rg5 Bg7 Qd7 Kg8 Rh5 Nf7 Bf6 h8R Qe7 Rh7 Rh1 Rh3 Bg5 Rg3 Rh7 Rh3 Bf6 Rc7 Bfh4 Rcc6
n3B1R1/b1P1p1qq/QbRP1p2/1p3P2/R1QNP1N1/q4b2/2NK3B/k2Rn3 b - - 0 1 illegal: No possible last move
BN1rb2q/QppR1RP1/Q6q/4rp2/qP1P4/B3R3/nKPQN2q/5kR1 b - - 0 1 illegal: Other
1r1N4/p2p1r1R/1N1PP1KN/PqQ5/1N4bB/2P1prB1/2BR2kb/2bQ2b1 b - - 0 1 illegal: No proof kernel
2Q3Q1/BP4kp/8/Kp6/PRr1p1Bp/2P2R1P/n1r2N1Q/bq1RQnbN b - - 0 1 illegal: Other
KR1B4/1Npp1B2/B1R2PQp/nBn1P2P/qNb1Pb2/r2k1p2/Q7/2R3n1 b - - 0 1 illegal: No proof kernel
BK1bN1n1/1N1qk1B1/p3b1n1/1nQRQpN1/PP1p4/r1QQ1p2/3RPP2/8 b - - 0 2 illegal: Other
4bB1n/3R1NQ1/2P1P1BQ/b6n/KQP1p1k1/pQ1pp1q1/1B1bP3/rNR5 b - - 0 1 illegal: Other
1r6/Q4B1R/n1k1Nr2/P1p1rQ2/qNn2Qp1/2p1N3/P1PB2Pp/QRb2K2 b - - 1 2 illegal: Other
BqR3n1/2p1p3/P2P4/2RQP1Qr/1QNK3b/P2pBBp1/1B1N2nk/r2r4 b - - 0 1 illegal: No proof kernel
4k2n/Kp1pN1np/B4pNr/1PP1P1b1/2nBP3/3QRQ2/N5RQ/q4rQ1 b - - 0 1 illegal: No proof kernel forced: wxLB
2q3Qr/pp1NPRK1/pB6/1PPn3b/Nb2n3/1BB4R/2P2pb1/2k1QR1B b - - 0 1 illegal: Other
1N1BQ3/pNpb3k/Pp2Qb2/Pp2Q1N1/3Q2R1/KP3r2/2B1rR1P/1r3q1n b - - 0 2 illegal: Other
2Nq4/n1pp3B/1r2PB2/1Q1K4/2P1RP1R/1n1P1Qpn/3p1N1R/2krbR1Q b - - 0 2 illegal: Other
2q1kBR1/1Q2p2p/Pn3B1P/6n1/1Bp1PK2/Q1PQ3q/2Nr1p2/bR2b1NB b - - 2 3 legal: proof: b4 a5 bxa5 Ra7 Nf3 Ra6 Ne5 Ra8 Nxd7 g5 f4 b5 Kf2 g4 Ke1 Ra6 Kf2 f5 Nc5 Rg6 Kg3 Bb7 Kf2 Rg5 fxg5 f4 Nd7 f3 Kg3 f2 Na3 Bf3 gxf3 Na6 Nb1 Nb8 Kg2 Bh6 Qe1 Bg7 Qd1 Bf8 Kg3 c5 h4 c4 a4 b4 e4 b3 d4 b2 a6 Qc8 a7 Bh6 a8Q Qa6 g6 Qd6+ f4 Bg7 a5 Qc7 h5 Qd6 h6 Qa3+ c3 Qb3 f5 Bf6 d5 Bd4 f6 Be3 d6 Qa3 g7 Qb3 Ne5 Qb7 Na3 b1Q Nc2 Qc8 Qb7 Na6 Bg2 Nc7 Qd3 Bd2 Nf3 Be1 Kf4 g3 Rg1 Qh3 Bh1 g2 a6 Qb2 Rb1 Ne6+ Ke5 Ng5 Kf4 Qb6 Be3 Qb4 Bd4 Qc5 Be5 Qcc8 f7+ Kd8 f8B Nf6 g8Q Ke8 Bd4 Nd7 Qgd5 Nb6 Qa5 Rg8 Bf6 Rg6 Rf1 g1B Qa3 Bh2+ Ke3 Qb8 Rg1 Qbc8 Rg4 Bg3 Ng1 Be5+ Rg3 Bd4+ Kf4 Bc5 Qa2 Ba3 d7+ Kd8 Qb3 Bb2 Qa3 Ba1 Rg2 Nf7 Rg4 Rg5 Rg2 Rd5 Rg8 Ng5 Qa8 Kc7 d8B+ Kd7 Qb7+ Ke8 Bc7 Rd7 Bd6 Rd8 Bb4 Rd4 Qf3 Rd2 Qd3
2kq2b1/2p2PnN/2R2RB1/B3B2P/1qQp3r/1pP3nR/bP2p3/2QRN1K1 b - - 1 2 illegal: No proof kernel
1n2kBBR/3pqP2/n2bpPp1/1Q1b2P1/K1NP4/7q/3pr1BR/Q2N1Q1B b - - 1 2 illegal: Other
NR5B/Pb2p1p1/Q3KQ2/pp2B2B/2r1n3/Pkr1P2Q/1q1qP1B1/2b1R2N b - - 0 2 illegal: No proof kernel forced: wxDB
N1KR2b1/2P1kN2/ppb3nR/PPQ2BpQ/p1R5/B1n1P3/N2r4/R1n2r2 b - - 0 2 illegal: Other
3RQQK1/8/3k4/p1ppRbb1/rnP1RP1r/2NQBpnR/2NPBP1n/8 b - - 1 3 illegal: No possible last move, all moves rejected
NrkQ2R1/5b1p/p2rp3/P5PN/2nR4/Q1N1PR1R/Bp1nKn1P/B2r4 b - - 1 3 legal: proof: d4 g5 b4 c5 bxc5 g4 c6 g3 fxg3 Na6 g4 Nb8 g5 Qb6 Nc3 Qc7 Nb1 Qd8 c4 Qc7 c5 Qd8 c7 Bg7 c6 Be5 Nf3 Bd6 Ng1 Bc5 dxc5 Nh6 Qa4 Ng8 Qc2 Kf8 Qd1 Ke8 a4 d5 g4 f5 a5 b5 g6 b4 g5 f4 g7 b3 Bb2 d4 Ra3 f3 Qc1 e6 Nh3 d3 Nf4 a6 Nc3 Bb7 c8Q Ke7 c7 Qd5 c6 Qd8 Ba1 Nh6 g8R Nd7 Nh5 Nb6 Qb8 Ng4 c8R Nf2 c7 Kd7 Qa7 Nc4 Qb6 Rb8 Rg1 Be4 Rg3 Nd2 Rh3 Nc4 e3 Bg6 Ra4 Be8 Qa3 b2 Bg2 d2+ Kf1 Nd6 Rd4 Bf7 Bh1 Qf6 Rce8 Qd8 Ref8 Kc8 Bg2 Nc4 Bh1 Ne4 Bg2 f2 Ke2 d1N Bf3 Ned2 Bd5 Be8 Rf6 f1R Rff4 Bf7 Rff3 Ne5 Ba2 Nf2 Qc6 Rb6 Qcc5 Rd6 Qb6 Kd7 c8N Rd1 Qb8 Nec4 Nb6+ Kc6 Na8 Kd7 Qb6 Kc8 Rg6 Re8 Rg7 Re7 Rg6 Rb7 Rg8 Rb8 Qxd8+
4Q1rN/kQ1p4/2nQ2p1/p2Kpp1n/1q1PR2b/NB3P2/PnRBP3/1N3Q2 b - - 1 6 legal: proof: c4 h5 b4 c5 bxc5 Nf6 g4 Ng8 gxh5 Qa5 Nc3 Qc7 Nb1 Qd8 Nh3 a5 Ng1 Ra6 Bb2 Rb6 Bc1 Rb5 cxb5 b6 Ba3 Ba6 bxa6 b5 Bb2 Qc7 Bc1 Qd8 d4 e5 Kd2 f5 Kc3 b4+ Kc4 g6 h4 b3 a7 b2 a8Q Ke7 h6 Qc7 h7 Kd8 h5 Kc8 h6 Qb6 c6 Kc7 Qa6 Nf6 Bg2 Bc5 Na3 b1N Bd2 Bb4 Qf1 Rg8 h8Q Be7 h7 Nc3 Nf3 Bf8 Rh4 Nh5 Re4 Nd1 Rc1 Ng3 Kd5 Bb4 Rc2 Rd8 Qe8 Bc3 h8N Qb4 Qb6+ Kc8 c7 Nb2 Qd6 Kb7 c8Q+ Ka8 Nb1 Ka7 Ne1 Nh5 Bh1 Nc6 Bg2 Kb6 Bf3 Kb5 Qb7+ Ka4 Qg8 Nb8 Bf4 Nc4 Re3 Ba1 Rb2 Nd2 Be4 Nc4 f3 Nc6 Rd2 Bc3 Nc2 Nb2 Nca3 Rf8 Bd3 Rb8 Qge6 Rg8 Rc2 Be1 Qe8 Bg3 Re4 Bh4 Qa7 Bg5 Bd2 Bh4 Nc4 Kb5 Qac7 Ka6 Nca3+ Nc4 Qcc8+ Kb6 Qa8 Nb2 Bc4 Ng3 Bb3 Nh5 Qac8 Ka7 Qb7+
1NR1Kn2/pr1p2p1/P1R3B1/QB1pP3/3p1nkN/NpQP2P1/B4B2/4rb2 b - - 1 3 illegal: Other
2Bb3B/6p1/3k3n/1bR2Qq1/Rp6/NPB1rrPP/QKN2PQ1/2n1Qnbr b - - 0 1 illegal: No proof kernel
4n3/2B2q1p/qRn3NP/4PrBr/P2QR2Q/3p1N2/b2P2N1/nN1KbBkb b - - 0 1 illegal: No possible last move
1B4Bq/np3rk1/1P4p1/2bR1qPB/Q1R4K/1PbP2rN/R1Q1R3/n2b1r1N b - - 0 1 illegal: No proof kernel
2n1R2k/3rNQqb/1r2Qpn1/2n1rPBN/2B2R1b/BpP4K/1P1RqP2/3B4 b - - 0 1 illegal: No proof kernel
1R2Q2K/qp2QRRN/pP1N1q2/1bn5/B4B1n/PPrPRk2/5b1r/qQ5r b - - 0 1 illegal: No proof kernel
1Q1Q3B/6bQ/1RK1bqp1/5r1N/BPp1n3/1BPPqr1n/1QNqk1P1/3Rr3 b - - 0 1 illegal: No proof kernel
1k3nb1/b4Rpb/1BP2p1R/r3q2B/N1K2P1N/1R4P1/PqN3qr/1nQQ2N1 b - - 0 1 illegal: No proof kernel
5R2/5Q2/p1qpN1N1/Nrr1Bnr1/P3bb2/NBq1b1B1/P2P1k1P/RnQK4 b - - 0 1 illegal: No possible last move, all moves rejected
4NKQr/B4b1p/rN2kP2/3R3N/6pq/1q1Brn2/n3qPPP/1Nb2QRQ b - - 0 1 legal: proof: c4 d5 cxd5 f5 a4 b5 axb5 Kf7 e4 Ke8 exf5 Ba6 Nf3 Bb7 Ng1 Bc8 Ke2 Kf7 Ke3 a5 Ke4 g5 Ke5 c5 d4 e6 b4 a4 f6 g4 d6 c4 b6 c3 b7 a3 d7 a2 d5 c2 b5 Qe8 d8Q Ra3 d6 Rf3 d7 Ba3 b6 Nh6 Ne2 Qg8 Nf4 Na6 b8N Nf5 b7 Nd4 Be3 c1Q Rg1 Nb4 Kd6 e5 Bd3 e4 Na6 Qc4 b8N Qb3 Nc7 Qg5 Qc1 Qh4 Qf1 Bc1 Nh5 Ba6 Ne8 Bc4 Qc8 Rg3 d8Q Nf3 Ba7 e3 Nd7 e2 Nb6 e1Q Kd7 Bd5 Qc2 Qe2 Qcd1 Bc4 Qa8 Rh3 Kd8 Ke6 Qde1 Nd4 Qd1 Re3 Qb8 Nf3 Qc8+ Ke5 Ke7 Bf7 Qc4 Bg6 Qg8 Bf7 Kf8 Ke6 Nc3 Bd2 Rc1 a1R Nb1 Ra6 Rc5 Na2 Rd5 Bc1 Rh1 Qeb2 Qfe2 Bd2 Qc1 Q2c2 Rd1 Qcb2 Qe1 Q2c2 Qh1 Qcb2 Rg1 Q2c2 Qe1 Bc1 Qd1 Qe2 Qf1
KRq4k/bB1Np1pR/6br/4bQ2/1Bn3PN/2P1PP2/QN1n1r1B/q1n3N1 b - - 0 1 illegal: No possible last move
4n2r/rn2p2P/Rq4qr/b1pPk2q/R3B1B1/Q1P5/2Q1P3/RbBKNRN1 b - - 0 1 illegal: No proof kernel
5NNn/1pq1Pq2/1QQ1n1b1/b1QK2pR/4P1r1/rPRBR3/1Bb3Pn/1k1R4 b - - 0 1 illegal: No proof kernel
1B1R1N2/pB1Q2pP/q1B1Qr1R/1Pnb4/3n1n2/N1b3qr/PB2N1Pb/1k3K2 b - - 0 1 illegal: No proof kernel
N1q5/brpB2P1/b1Q3Q1/PNk1B1r1/n1P1p1r1/K1Rrr3/1B1nP2N/3NR3 b - - 0 1 illegal: No proof kernel
7K/5N1P/3pRk1P/1p1nRBqb/1PBPQb2/3N1r2/1n1B1r1n/Q2rnR1R b - - 0 1 illegal: No proof kernel
B5nr/2b2kQp/QQ4RP/pRr4q/b2b1Bn1/2NN2KP/P5Pn/1nN2Q2 b - - 0 1 illegal: No proof kernel
1Q1b1bN1/R2n1P2/BB1P4/1B3pbp/K1BNQ3/3b1RqP/2kr1P1N/2rnn3 b - - 0 1 illegal: No proof kernel
3BnQ1Q/k3QRb1/1p3PbN/2Np3r/1P4rr/2N5/1P1PBQ1n/KRq2nr1 b - - 0 1 illegal: Other
qR1kBB1Q/2b4q/p1QP2r1/n2r2p1/PNb1R1P1/1P1bQ3/N2b2K1/n5QN b - - 0 1 illegal: No proof kernel
1Q2Bk2/B1K1Q2p/2QrrN2/P1b1qqn1/1P3nbP/bBp1N1R1/2PQ3b/3R4 b - - 0 1 illegal: No proof kernel
4R3/2BKpNB1/nq1P1Pb1/Nr3R2/4qbp1/3QR3/rRqnP1Pq/1Bk2Q2 b - - 0 1 illegal: Other
6Qr/p7/1pbb3r/kP1n1B1B/3NR3/1Q2RpbP/PK3PRq/Bn1RN1r1 b - - 0 3 legal: proof: d4 e5 dxe5 d5 c4 h5 cxd5 Bd7 g4 Be6 gxh5 Bc8 Kd2 Kd7 Kc3 g5 e4 f5 b4 c5 e6+ Kc7 d6+ Kb6 d7 g4 h6 f4 h3 f3 e7 c4 e8B g3 e5 g2 b5 Na6 e6 Nc5 h7 Qh4 d8R Qg4 e7 Qg7+ Rd4 Ne4+ Kb2 Qe5 Bd3 Ka5 Bh5 b6 e8R Qh2 Na3 Ne7 Ne2 g1R Qb3 Bb7 Nc2 Nd2 Re4 Bc6 Ned4 Nb1 Ne1 Nd5 Re3 Rb8 Bf5 Bd6 R8e5 Rbg8 R5e4 R1g6 Rf1 Rh6 Rg1 Rg4 Rg2 c3+ Kc2 Rgg8 Bb2 Rgg6 Kc1 c2 Bc3+ Bb4 Kb2 c1B+ Kc2 Bd2 Kb2 Rg4 Rd3 Bf4 Rde3 Rhg8 h8Q Bg3 Qh7 Rh8 Qg8 Rg5 Ne2 Rg7 Be5 Bd6 Nd4 Nbc3 Rc1 Nb1 Rd1 Qg1 Ne6 Ne7 Kc2 Bh2 Rg3 Nd5 Ba1 Qg2 Rg6 Bhe5 Rgg4 Qh2 Nd4 Rgg6 Kb2 Rg7 Rh4 Rg1 Rhg4 Bf4 Rg2 Bfe5 Qg4 Bg3 Qg8
BkR1b2n/1P2B2N/p4Np1/1pb2rPq/P2R3P/3Q2Q1/n1K5/1rN1QrbN b - - 0 1 illegal: No proof kernel
rN6/1BBpb3/1KQ3rP/rbpR1p1n/2PN1Q1q/2P2R2/N1nN1Pn1/1k4Q1 b - - 0 1 illegal: No proof kernel
2N1Q3/B2r2q1/3B1p1P/Kbn1pB1r/N1k3n1/1p2PP2/1b1rP2R/BbR1QN2 b - - 0 1 illegal: No proof kernel
3BQ1RK/1p1bP1B1/pP1pQ2N/1r2N1Pn/5nr1/1b2QBB1/Pb1R2n1/2q3k1 b - - 0 1 illegal: No proof kernel
NQB1b2K/1P2B1p1/2r2Q2/pP2Bbk1/n1RN2P1/4n1R1/P1p2b1N/r1N1rq2 b - - 0 1 illegal: No possible last move, all moves rejected
N6R/BP4Nr/b4R1p/k2pbK1n/P4n2/q2BB2Q/N1pP1B1P/n1rb2Q1 b - - 0 1 illegal: No proof kernel
B1rrn1k1/1K1p2pP/Bn2nBr1/1QR2q2/4B3/p2PN1QR/1R1PN1Pb/7b b - - 0 1 illegal: No possible last move, all moves rejected
1kQ1Nrr1/pn6/Kb2pB2/B2n2p1/2B4N/r1Pb2P1/P3PRQb/Qq1R2Q1 b - - 2 3 illegal: No proof kernel
1k6/4Kn2/b1rpN3/2QPppn1/P2bP1NN/q2qqP1B/QB5B/rRN1R3 b - - 2 3 legal: proof: c4 b5 cxb5 a5 g4 h5 gxh5 Nc6 b4 Nb8 bxa5 Ra6 Qa4 Ra7 Qd1 Ra8 e4 f5 Ke2 g5 Kf3 c5 h4 g4+ Kf4 c4 Kg5 g3 d4 c3 a4 c2 d5 g2 h6 Qb6 h7 Kd8 a6 Kc7 a7 e6 h5 Qa6 b6+ Kb7 h6 Qe2 f3 Nf6 Qd4 Qa6 Qc5 Nh5 Nd2 Nf4 Kf6 Rg8 h8Q Qe2 h7 Rg3 Nh3 g1Q Rb1 Qge3 Bb2 c1Q Nf2 Nh3 Ng4 Rg1 Nb3 Bg7+ Ke7 Ng5 Bh3 Bd4 Qf8 Qec4 h8N Qcd3 Ng6 Rf1 Nh4 Nc6+ Kd6 Nd8 Ke7 Qcc3 Nc1 Ndf7 Qc4 Rb8 a8N Qa3+ Qc5 Rg1 Nc7 Ra8 Qh6 Kb8 b7 Ra6 Qf6 Rd1 Re1 Rc6 Qe5 Qdd2 Qh2 e5 Ne6 d6 Qe2 Rb6 Qec4 Qdd3 Qa2 Ka7 b8B+ Ka8 Nd8 Rc6 Ne6 Ba6 Bc7 Kb7 Ba5 Kb8 Bd2 Qg1 Bf4 Qge3 Bh2 Qf1 Nb3 Qfd3 Rc1 Qf4 Rc3 Ra1 Rcc1 Qfd2 Rb1 Q2e3 Nc1
R1Q4B/1pq1k1p1/nP3rpR/1N1r2P1/RR3b1P/3B1B1q/3P3N/1b1n1qQK b - - 0 1 illegal: Other
1Q3r2/b2QqB2/Q2r4/bPkq1NRN/p7/P1pq2Bp/1nP3nP/1BQ1R1K1 b - - 1 3 illegal: No proof kernel
1Bn1R1q1/Q2Npkr1/bn1PPb1r/1p5p/2NQ2P1/1Q3K1P/3N2R1/nBq1Q3 b - - 0 1 legal: proof: c4 d5 cxd5 g5 b4 a5 bxa5 Ra6 f4 Ra7 fxg5 Ra8 Kf2 h5 e4 c5 g4 f5 d4 b5 a4 c4 a6 f4 h3 c3 g6 c2 g7 f3 a5 Bb7 a7 Qb6 a6 Qd6 Bd3 Nd7 Rh2 Nc5 Rg2 Qf4 d6 Qe5 d5 Qh2 d7+ Kf7 d8Q Ne6 Nd2 Rc8 a8N Nd4 a7 Ba6 Qe1 Nb3 Nc4 Qb8 Bf4 c1Q Nab6 Nf6 a8Q Nd7 Bb1 Rh6 Qa7 Rcc6 Bc7 Rcg6 e5 Qa8 Ra5 Na1 Bb8 Rg5 Kg3 f2 Nf3 f1N+ Kf2 Rgg6 Nfd2 Ng3 Kf3 Nf5 Ra4 Nd6 Ra2 Nc5 Nd7 Na4 Qdb6 Rg5 Qd4 Nc8 Rc2 Nab6 g8Q+ Ke8 Ra2 Rg7 Ra4 Qc6 Ra2 Qg6 d6 Qg5 Nb2 Qg6 Qb3 Qg5 Nbc4 Kf7 Rc2 Qg6 Ra2 Qh7 Ra4 Qg8 Qg3 Rgg6 Qa8 Na7 Qe1 Bg7 Bc7 Bc8 Qb7 Bf6 Ra3 Nc6 Ra8 Rg7 Qa6 Bb7 Re8 Bc8 Qa8 Na7 Bb8 Ba6 Qb7 Nac8 Qa8 Qf8 Qa7 Qg8 e6+
6r1/1P5Q/1n1RpK1k/p1N2B2/P1q1PpRn/B1r2P2/R4QqR/NbNb1n2 b - - 2 3 legal: proof: d4 b5 g4 h5 gxh5 c5 c4 e6 cxb5 c4 Bg5 Be7 Bc1 Bc5 dxc5 Kf8 Nh3 Ke7 Ng1 Ke8 Kd2 Kf8 Kc3 a5 Kd4 f5 Ke5 d5 a4 g5 e4 Kg7 b4 f4 h4 d4 f3 d3 c6 g4 h6+ Kh7 c7 g3 h5 d2 b6 g2 b7 c3 b5 c2 b6 Qf8 Ra2 Qd8 Ne2 g1Q Rh4 Qd7 Na3 Qg4 Bh3 Qg2 Bf5+ Qg6 Qe1 d1B Rg4 Qe8 Qf2 Qc6 Bb2 c1N Nc2 Nb3 Ba3 Ra7 Nc1 Ne7 Na1 Bd7 c8R Rg8 Re8 Qc4 Rd8 Bb5 Rd7 Nd2 Rd6 Na6 b8N Rc7 b7 Nb4 Na6 Nf1 Nc5 Nbd5 Rh4 Nb6 Rg4 Kh8 h7 Kg7 h8R Rcc8 Rh4 Qg2 Rh2 Ba6 Rh6 Rc7 Rg6+ Kh7 Rg7+ Kh6 Rg4 Ng6+ Kf6 Nh4 Rh3 Qb4 Rh2 Bd3 Rg6+ Kh7 h6 Qc4 Rg4+ Kh8 h7 Bb1 Bg6 Rcc8 Ke7 Kg7 Bf5+ Kh6 Kf6 Rcd8 Rc6 Rd3 Rd6 Rd8 Rc6 Rc3 Rd6 Rd7 h8Q+ Rh7 Qc8 Rg7 Qd7 Rg8 Qh7#
nN2B3/3q1p1n/R1QQQPP1/b1Bb2p1/1q1p2KP/5nN1/N4kP1/r1rR2Q1 b - - 0 1 illegal: No proof kernel
1n4BQ/Prp1N3/N5K1/2PpQQRn/Ppkb3B/qN1Pr1q1/3R1Nb1/b7 b - - 0 1 illegal: No possible last move, all moves rejected
3Q1K2/N1kNQn2/P3ppBp/3R3P/n1qR1PRr/nb1QB3/4P3/1Rb1q2r b - - 1 3 legal: proof: c4 d5 cxd5 a5 g4 f6 b4 Kd7 bxa5 Ra7 g5 Qe8 g6 Qf7 gxf7 Ra8 d4 c5 Kd2 b5 Kd3 g5 Ke4 g4 Kf5 b4 f4 g3 h4 b3 a4 g2 d6 h6 Kg6 e6 h5 b2 d5 c4 a6 c3 a7 c2 a5 Rh7 a6 Be7 f8Q Nc6 Rh4 Rb8 a8R Rf7 Na3 b1N Be3 c1Q Rg4 Bb7 Nf3 g1Q Bg2 Qc4 Nb5 Na3 Qd3 Qe1 Na7 Nd8 Rb1 Bc6 Qg7 Ba4 Bh1 Bb3 Ne5+ Ke8 Nd7 Rf8 Rg5 Nf7 Be4 Kd8 Rg4 Re8 Bf5 Bf8 Kh7 Ne7 Bg6 Nc8 Kg8 Nb6 Qh7 Rc8 Rb8 Na4 Rb4 Qb5 Rd4 Rc1 Nb6 Qc4 d7 Kc7 d8R Rd1 Nd7 Rc1 Qg7 Bb4+ Qf8 Bd2 Kg7 Rd1 Qb4 Rh8 Qe7 Rh7+ Kf8 Rg7 Rb8 Bc1 Rb5 Qeb4 Nc6 Rh1 d6+ Kc8 Rbd5 Qe1 Nde5 Rh4 Na7+ Kb8 d7 Kc7 Be4 Rg5 Bg6 Rh1 Rg1 Rg4 Rg2 Rgh4 Rg4 Kb6 d8Q+ Qc7 Qa8 Qc4 Nd7+ Kc7 Qad8+
3BQR1K/4q1pp/N2rq3/5B2/2bNBbRR/1p2nPPQ/1Pn1P1k1/2Rrr3 b - - 0 1 illegal: No possible last move
3R1k2/2PrpNp1/qbbP1N2/pBQ1P3/4q2r/B1n1n1KQ/P1R4B/1N1Bn3 b - - 0 1 illegal: No proof kernel forced: wxDB
8/kq2QN2/N1p1Q1b1/p3nPr1/2P2q2/1Bb1RP1K/Pbp1rRN1/n3B1BB b - - 0 1 illegal: Other
2b2n1B/bBr1P1p1/3RR3/qn2p2Q/B2q2P1/rQ3pNk/3RPP1N/1n1K3R b - - 1 3 illegal: Other
r1RbQ1n1/5N2/1Pp1kPB1/1b1n1rpq/3B1QN1/1KP1pRB1/6Pn/3Bq1N1 b - - 0 1 illegal: No proof kernel
1r1NB3/1R1P1RB1/r1PK2n1/p2b2Bp/4k1q1/Q1Bp1q1N/Pbq2n1P/QN6 b - - 0 1 illegal: No proof kernel
qQq2n1K/Rp1pkp2/N5Q1/B1Q1R2B/2Q2P2/1b1P1N1n/1Pb2rPr/4B1b1 b - - 1 3 illegal: Other
2bbb1N1/2Pk1p2/PpB2RB1/1Rr3Q1/2nRQ3/2n1qPq1/1P3p1N/r1B2B1K b - - 0 1 illegal: Other
BRBn1r2/pn4k1/1n1b1BN1/1P5Q/N1Qp4/PPrP2B1/2bR1p2/3nq1QK b - - 0 1 legal: proof: f4 e5 fxe5 h5 g4 b5 gxh5 Rh7 c4 Rh6 cxb5 Rh8 Kf2 d5 Kg2 g5 h4 f5 e4 Kf7 e6+ Kf6 e5+ Kg7 d3 c5 a3 c4 b3 f4 e7 g4 e8B g3 e6 c3 e7 c2 Nf3 d4 Nc3 Na6 Na4 Nh6 Bc6 Bg4 e8Q Nc5 Ne5 Nf7 Ng6 Bd6 Qe6 Qe8 Ra2 Rc8 Qc4 Qe1 Ba8 f3+ Kg1 g2 Bf4 c1N Bg3 Rhe8 Rd2 f2+ Kh2 g1N Bh3 Rf8 h6+ Kg8 h5 Nce2 h7+ Kg7 Qdc1 Nd8 Qa1 Nf4 h8B+ Kh7 h6 Nd5 Qac1 Bd1 Bf6 Ncb7 Qa1 Rc7 Bc8 Ne2 Qb1 Kg8 h7+ Kf7 h8Q Bc2 Qh6 Nc3 Qh5 Nd1 Rg1 Rc6 Kh1 Kg8 Qb4 Rc3 Qc4 Qe6 Re1 Nb6 Re5 Ne3 Qg1 Nd1 Rc5 Kf7 Bd7 Kg8 Rc8 Kf7 Rb8 Kg8 Bfh4 Kg7 Bc8 Qe1 Bf6+
2b5/Ppnb2pR/1q1NB1Q1/3NB2p/Qn2k1nP/1P1N2q1/BR3rP1/1B2K1b1 b - - 0 1 illegal: No proof kernel
8/1bpn1KRq/2P2Q1p/2P2RPN/3p2B1/k1QPrpBb/N1R4r/R1b3Bn b - - 0 1 illegal: No proof kernel
N3n1NR/1R1N1p2/KN4r1/pp1PBrn1/Pbp2R2/1nP5/B2kP1Q1/qb1Q4 b - - 0 1 illegal: No proof kernel
q1n3k1/R2NPb2/2p1N2Q/r1PpB2r/bK1P3p/1N2N3/Q2rp1BP/4Rn1B b - - 0 3 illegal: No proof kernel
2n1b3/P3nP2/5p2/1pp2PrB/rbkBN3/b1P3qR/NB1pBRQN/4QK2 b - - 0 1 illegal: No proof kernel
1n1q1B2/1Pp3Pk/2Brn1Q1/p1p1N1R1/P1Nb2K1/2P1N3/Qr1np1b1/2N3BR b - - 0 1 illegal: Other
Nk3b1K/Q2br1p1/3p2pR/1bBPp3/2N2Rn1/2QR1PPP/4Q1q1/2R2rnB b - - 0 1 illegal: Other
3B4/1r1k1Bp1/n1pQ3b/p1P2NR1/2P2KP1/p1r1NnR1/P1B2q1N/n1b2N1Q b - - 1 3 illegal: Other
N3QRB1/1b1qp1NK/p2k1b2/1p2P1p1/1RPnP3/n3B1rB/1Pr4N/5BrQ b - - 0 1 illegal: No possible last move, all moves rejected
4QQQ1/pr2pBR1/1PN1R1nb/Bp6/1Pq2r1k/K1P5/pQb1P2r/2N2nB1 b - - 0 1 illegal: Other
2n5/pPp4N/P1k1KbPQ/1N1r1p1b/2RB2b1/2R1QBpq/R1P4R/2N1rn2 b - - 0 1 illegal: No proof kernel
2n3n1/2Qb1np1/3Q3b/p1Rp1BR1/P1rrNB1K/N2q1p1B/PP2k1P1/2NN4 b - - 0 1 illegal: No proof kernel
5Nnn/B2RBp2/2bQQ1P1/ppq2r1B/1QPp2N1/1rr2RK1/3PkPQ1/b7 b - - 0 1 illegal: No proof kernel
2Nbn1q1/K1QQpPr1/1BRNPq2/2RP1B2/p1bpr1B1/3p4/1n1PkR2/4B3 b - - 0 1 illegal: Other
b1B3RQ/p1n2PBN/3RB2q/np3kNp/1P1P1rN1/2Qp1N2/1q1Prb2/7K b - - 0 1 illegal: No possible last move, all moves rejected
3K4/r1R1n1NQ/QN2p2p/2r4p/B1B1PP1P/2p1b2r/qkPB1RR1/R5nn b - - 0 1 illegal: Other
2k3bK/rQB1r1R1/1PN4n/1B4p1/Qp3bPp/NBq2p2/1PRQQb1P/4r3 b - - 0 1 illegal: No possible last move, all moves rejected
7b/QKp1p2N/1QBpPRp1/2P1NRB1/Bnr1k3/2bb2q1/B1QPP1n1/5n2 b - - 0 1 illegal: No proof kernel
1NnRQN1n/1b5p/pBpb3P/n1k3br/P1Pp2Q1/P1N3r1/3R1QB1/1K1N4 b - - 0 1 legal: proof: g4 f5 gxf5 e5 d4 Be7 dxe5 Bd6 b3 Qh4 a3 Qa4 bxa4 Bf8 Kd2 Ke7 f4 b5 c4 g5 Kc2 d5 h4 c6 e4 a6 e6 Kd6 e7 g4 e8Q b4 f6 g3 e5+ Kc5 h5 g2 f5 Be6 h6 Kb6 f7 Nd7 f6 Bd6 f8Q Kc5 f7 Nb6 Bf4 Rb8 Ne2 g1B Rh2 Nc8 Bg2 Rb5 Nec3 Nge7 Qg4 Ng6 Nd1 Be3 Nbc3 b3+ Kb1 b2 Bg3 Bd7 e6 Bg5 e7 Rg8 Ra2 Nh8 Rh3 Bb8 Bc7 d4 Re3 Ra5 Re6 Rg7 Rd6 Be6 Rd8 Rg6 Kc2 b1N Kb2 Nd2 Kc1 Nb3+ Kb1 Rf6 Rd2 Rf5 Qd7 Rf3 e8N+ Nd6 Qc8 Rg3 Nf6 Rb5 Qd7 Ra5 Qde7 Bc8 Qee2 Rb5 Qfe8 Bb7 f8N Nc8 Qf2 Ra5 Be5 Bd6 Bf4 Kb6 Be5 Rd5 Bf4 Na5 N6d7+ Ka7 Nb8 Kb6 Be5 Kc5 Bf4 Rf5 Be5 Be3 Bf4 Rh5 Be5 Bg5 Bf4 Bde7 Bc7 Bd6 Bb6+
2NQ4/3RR2K/2nNpk1p/qpr3bB/1P3QrP/Bn1r1RpP/2B3P1/1R4r1 b - - 0 1 illegal: No proof kernel
1r2B2k/1p1n3b/3qB1NP/1r1QQ1pN/1Np3P1/RP1b2np/1pP3N1/R1B3K1 b - - 0 3 illegal: Other
6Q1/2P2B1n/1qR1p3/1kpN1bB1/1b1p3K/N3P2p/QrPQnPp1/Nr2N1R1 b - - 0 1 illegal: No proof kernel
3QnQrR/R1pBpp1Q/1NQp1N2/6Bq/qpP1nP2/4k1Pr/1P1R2b1/2K5 b - - 0 1 illegal: No proof kernel
R2K2bq/1pp1QN1B/r4pp1/1Qb5/1bPn1PnR/7N/1PrB1nPQ/3B1kB1 b - - 0 1 illegal: No proof kernel
n1qB4/1r1N1N2/K2bk3/1P1NP1n1/B2P1N2/p1p5/4N1PR/1Qn2rNR b - - 0 1 legal: proof: c4 d5 cxd5 f5 f4 b5 e4 a5 exf5 e5 fxe5 g5 h4 b4 hxg5 a4 a3 Bd7 axb4 a3 b3 Ba4 bxa4 Nd7 b5 Nb8 d4 Kf7 Kd2 h5 Kc3 c5 d6 c4 Kb4 h4 a5 h3 a6 h2 g6+ Ke8 a7 Kd7 g7 Qc7 f6 Qc8 Ka5 Qc6 f7 Rh6 Nc3 Be7 f8N+ Ke8 d7+ Kf7 Bg5 Rd6 Qb1 Qc8 Bd3 Na6 Ne6 Nf6 g8N Nc7 Bc2 Rb8 a8N Ne4 Nb6 Rb7 Ba4 Na8 Nf4 Rf6 Ka6 Bd6 Nce2 c3 Ne7 Rf5 Bh4 Ng5 Ned5 Rf6 Ne3 Ke7 d8N Rf7 Nd7 Rf5 Nd3 Rf1 Nf7 Ke6 Nd5 Nh3 Bd8 Ng5 Nh3 Re1 Rf1 h1N Nhg1 Ng3 Rf4 Rf1 Rh4 N3e4 Rh2 Nd2 Qa2 Nb3 N3f4+ Kf5 Rd1 Nc1 Qb1+ Ne4 Rd3 Ng5 Rdh3+ Ne4 Nd3 Ke6 Rh1 Ng5 Rh4 Bb4 R4h2 Bd6 N3f4+
4N1nQ/2PR1b2/2B4R/k3Pq2/1N1bqN2/Kp2q1BP/NNP2r2/1b3Nr1 b - - 0 1 legal: proof: b4 a5 bxa5 b5 a4 c5 g4 h5 gxh5 e5 f4 b4 fxe5 Nc6 d4 Na7 dxc5 Nb5 axb5 Bb7 Qd6 Ba6 Qd1 Bc8 Kd2 d5 e4 Kd7 h6 Kc7 c6 f5 h7 g5 b6+ Kb8 a6 d4 b7 Kc7 b8N Kb6 a7 f4 e6 d3 c7 f3 e5 g4 e7 g3 e8N g2 Na6 f2 Nf3 g1Q Nc3 Qd4 Bg2 f1B Na2 Rb8 a8N+ Kb5 Nb6 Be6 Nc4 Qg4 Nb2 Qf5 h3 Qb6 Nh2 Ka5 Bc6 Bf7 Qh5 Bc5 Qh6 Be2 Rd1 Bd4 Nf1 Rd8 Qf6 Rd6 Qg7 Rg6 Rb1 Rg1 Qh6 Nf6 Qf8 Rhg8 h8N R8g2 Ng6 Rf2 Qh8 Ng8 Nf4 Qc5 Ke1 Bg4 Be3 Be2 Kd2 Bf3+ Kc1 B3d5 Bd2 Qa7 Be1 Qa8 Nc3 Ba2 Ra1 b3 Nb4 Kb6 Rd2 Bb1 Nca2 Ka5 Rd1 Rfg2 Bg3 Rf2 Bb5 Qf3 Bc6 Q3e4 Na4 Be3+ Kb2 d2 Ka3 Bd4 Nb2 Qe3 Re1 d1Q Re2 Bc5 Rd2 Qdf3 Rd6 Qf3e4 Rh6 Bb6 Nc3 Ba2 Rd1 Bb1 Rd7 Bd4 Nca2
rb4BN/b1RRNq2/1P6/1Pp1Q3/2B2B1k/B2PB3/B2Pb1pn/2K1bb2 b - - 0 1 illegal: No proof kernel
7K/1NPq1P1B/pP1n3Q/Rr1RBB2/2P2q1r/3pq1qB/2B5/kNBn4 b - - 0 1 illegal: No possible last move
B2n2r1/P2p2r1/RqR2B2/r1n1b1k1/RQ4nN/1PP1R3/b3P1bR/1NK1R3 b - - 0 1 illegal: No possible last move, all moves rejected
k2rb1BN/1R2b3/Nn3r1n/2B2PB1/Bn3P2/1KBp1qP1/6PB/Q1q2b1R b - - 0 1 illegal: No proof kernel
4R3/NB1P2K1/1PrQr3/4R2R/1r1BP1n1/kqb1Rp2/2bP1q1R/1R1Nq2n b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 Kf2 Ke7 Ke3 c5 Ke4 g5 h4 a5 b4 f6 b6 a4 e6 Kd6 Kf5 a3 Kg6 f5 e4 c4 h6 a2 h7 f4 b7 g4 e7 c3 e8R f3 h5 g3 h6 g2 b5 Kc5 d6 Kb4 b6 c2 d7 Bg7 Nh3 Na6 b8R Nf6 Bb2 c1R Nc3 Nc5 Re5 Qg8 Qc2 Nd3 Nb5 Nf2 Qd3 Ra4 Bd4 Qb3 Rb1 a1Q Na7 Ba6 Rbe8 N6g4 Rh2 Rg8 h8R g1Q h7 Nh1 Nf2 Ka3 Nd1 Rb4 Re2 Qf2 Re3 Bb5 Be2 Ba4 Bf1 Rf8 Be2 Bf6 Bf1 Rc6 Be2 Bh4+ Kg7 Rff6 Bc3 Rc7 R5e6 Rbc4 Qd6+ R7c5 Rb2 Qc1 Rb1 Qa2 Nb2 Rb4 Ba6 Rc6 Bb7 Qce1 Nd1 Bc2 R6e7 Bg3 Re6 Be5 R6e7 Bd4 Re5 Re6 Ba1+ Qb3 Bc3 Bc5 Ba1 Rb5 Bd4 Bb4 Rhf8 Ka4 h8R Bc3 Rff5 Rb4 Rh2 Ka3 Rfh5
4nqn1/1rP2Q1N/1Br3P1/K2p2n1/B2k1Bq1/3B1P1n/2BP1R2/n1RbN2B b - - 0 1 illegal: No possible last move, all moves rejected
B1b2N1K/Qr3qB1/P1B5/BqR1r3/B1R1pn1P/1k3P2/1p2P3/nb2NbB1 b - - 0 1 illegal: No possible last move
1nnN1r2/1NRB1P2/P1Nq3N/N2QP1Bp/bnq5/1k2KN2/2RPp2r/4b3 b - - 0 1 illegal: No possible last move
k1b4B/5B2/1p2BQr1/NqPP2R1/R2nP1nK/2b2B1B/r1p2N1P/1nn1B3 b - - 0 1 illegal: No proof kernel
NB1nK3/1B3P2/b2qP2Q/3B1Bp1/1pB1r1R1/1Pn1R1Br/2r2qPq/2k4N b - - 0 2 illegal: No proof kernel
3rR3/B3RP1B/k1B1nq2/p7/2Qrr1Bp/2P2N2/PP1bn1qB/NK2Bq2 b - - 0 1 illegal: No extended proof kernel
1NNqR1b1/r7/1n4Kn/Pk2N2P/1bN1nR2/4P2p/2p1nQNP/1B3nBN b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 e5 fxe5 a5 g4 b5 b4 h4 bxa5 Rh5 gxh5 Ra6 Qc2 Rh6 Qd1 Rh8 a6 Kd7 Kf2 c5 Ke3 f5 Kf4 g6 d4 h3 a4 b4 e6+ Kd6 e7 c4 Kg5 f4 a7 c3 a8N f3 a5 b3 Qe1 f2 Be3 b2 Nc7 Qe8 Na6 Qf7 e8N+ Kd7 d6 Kc6 d7 Nh6 d8N+ Kb5 d5 Qf3 d6 Bd7 Ra4 Nf5 Nc6 Qd5 Nd2 Bc8 d7 b1N d8N Qg8 Ne6 Rh7 Nf4 Nd7 Nab8 Nh6 Rc4 Bb4 Nd6+ Ka4 Bg2 Nb6 Be4 Be6 Nc8 Ra7 Rd4 Qf8 Nc4 Nd2 Bb1 c2 Rd8 Qg8 N6e5 Kb5 Kf6 g5 Bc5 Qf8+ Kg6 Qd6 Re8 g4 Qf1 g3 Qg2 f1N Bf2 Ne4 e3 Qd7 Nge2 Nfd2 Rf1 Bg8 Qg1 g2 Ng3 Qd8 Nh1 Nd6 Rd1 Nf1 Rd4 Nd2 Qe1 g1N Ng2 Nf1 Rf4 Ne2 Bg1 Ne4 Qf2
r2NK1N1/pRPN1P2/3P1bn1/rk6/bN1n2BR/B2q1p2/p1P3b1/N2N2Q1 b - - 0 1 illegal: Other
1r1QBR2/n1P1pn2/3r1BR1/rq1P1RpN/3R2K1/b1Pq3p/2R2N1P/kR6 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 f5 gxf5 d5 dxc5 d4 a4 Bb7 axb5 Bd5 exd5 Qb6 Be2 Qd6 Bf1 Qd8 Ke2 Kf7 Kf3 Kf6 b4 Ke5 f6 g5 b6 a5 f7 h5 b7 d3 c6 Kd4 c7 d2 b5 a4 b6 h4 Nh3 a3 Qe1 d1R Nf4 a2 Nd2 Kc3 Bb2+ Kb4 Kg4 h3 Bf6 Ka3 Ne4 Bg7 f8R Bh6 Rb1 a1Q Nh5 Ka2 f4 Rc1 f5 Qe8 Qa5+ Qa4 Bb5 Qa3 Nf2 Qb2 Rd1 Nc6 b8R Qb4+ Rd4 Bg7 Rbc8 Na7 Be8 Qb5 Rf7 Rh6 Rf8 Bh8 Rf7 Rb8 Rg7 Nc6 Rg6 Rd1 Qa8 Na7 b7 Qad3 c3 Bg7 Rb2+ Ka1 Rc2 Rb1 Rd8 Rb4 Rd6 Ra4 Re6 Ra5 Re5 Rd8 b8R Rh8 Re3 Rd6 Rf3 Nh6+ Kg3 Nf7 Kg4 Rc6 Rb6 Re6 Qd8 Rg8 Be5 Rd6 f6 Nh8 f7 Bf6 f8R Nf7 Bg3 Be5 Rf5 Bf4 Rb7 Bc1 Be5 Ba3 Bf6 Rc6 Qb8 Re6 Bc6 Qbc4 Rc8 Rd8 Qa8 Red6 Rcb8 R8d7 Rf8 Rd8 Be8 Qc6 Rb3 Qb7 Qc8 Qbb5 Qd7 Ra8 Qd8 Rb8 Rb1+
6N1/KP2qr2/N1pk4/1Nppb1NQ/2P3r1/3PB2N/RNB3RP/br1nr3 b - - 1 2 illegal: Other
N3k2N/K5P1/BnN2N2/2QPB1R1/2pp1R2/n1b4P/p1NPpr2/rr2q1N1 b - - 0 1 illegal: No proof kernel
q2B3N/R1pn1ppB/n3Bb2/2Nb4/3B1Kp1/P2B1Q1k/P1P2P1r/Bn2R3 b - - 1 2 illegal: Other
2r2R2/p1p1K1P1/N4R2/2k1PQpn/3RRr2/P6p/R1q1BqNP/2b2RBn b - - 1 2 legal: proof: f4 b5 g4 g5 c4 e5 cxb5 f5 gxf5 e4 f6 e3 f5 Ba6 dxe3 Bb7 e4 Bd5 e5 Bc4 Nf3 Bf7 Ng1 Bg6 fxg6 Bc5 Qd6 Ba3 Qd1 Bf8 Kf2 d5 Kf3 Kd7 Kg4 h5+ Kf5 h4 e4 h3 b4 d4 b6 Kc6 Ke6 d3 a3 d2 g7 Rh5 b7 Be7 b5+ Kb6 f7 Qd4 f8R Qb4 Be2 Qc5 Qf1 d1Q Nf3 Nc6 b8R+ Ka5 b6 Qd2 b7 Kb6 Nh4 Qda5 Qf5 Bd8 Ra2 Nce7 Nc3 Qd4 Na4+ Kc6 Be3 Qac5 Rf1 Qd3 Bg1 Qdc2 Rf6 Qf2 Ng2 Rh4 Nc5 Rf4 Rc8 Kb6 b8R+ Kc6 Rb4 Rb8 Rf8 Nf6 Na6 Nh5 Rf6 Ra8 Rd4 Kb6 Qg6 Nf5 Qf7 Be7 Rf8 Bb4 Kd7+ Bd6 e6 Nfg3 e7 Nh1 e8R Rc8 Ke6 Bb4 Qg6 Bc3 Qf5 Bb2 Ke7+ Qc6 e5 Bc1 Rc4 Kb5 Rd8 Kb6 Rd3 Kb5 Re4 Qc2 Nb8 Kc5 Rdd8 Be3 Rdd4 Bc1 Na6#
q2qq1BR/2p3nR/2n5/1pK3PN/2Q3Pb/B1PBpb1B/1N2PBr1/B1k4r b - - 0 1 illegal: No proof kernel
2r5/R4ppb/1R1P1BPn/2RR4/R1Bp1Pk1/4nqbb/KN1P1rQ1/2bN1R2 b - - 2 3 illegal: No proof kernel
R1bk1n2/Bq4Br/1nR2PP1/Pr6/B4RQP/3q2q1/KBR1N3/b2Nq3 b - - 0 1 legal: proof: c4 a5 g4 h5 gxh5 f5 f4 g5 fxg5 d5 cxd5 a4 e4 a3 exf5 Nh6 bxa3 Ra5 a4 Ra8 a5 Ng8 a4 c5 d4 e5 Kd2 b5 Kc3 e4 Kb2 e3 h4 e2 a6 e1Q a5 c4 d6 c3+ Ka2 c2 f6 b4 d7+ Kf7 d5 Qe6 a7 Bg7 h6 Qc7 d8B Ke8 g6 Qed7 h7 Bf8 d6 Ne7 Nc3 Nd5 Bb2 c1Q Qg4 Nb6 Rh2 Qe1 Nd1 Qf5 Bb5+ N8d7 Ba4 Rb8 a8R Qd3 Rc2 b3+ Kb1 Qb7 Ne2 Qdg3 Ra2 Bh6 Rc6 Be3 Bc7 Bd4 Bd8 Rg8 h8B Nf8 Bg7 Rh8 Ka1 Rh7 Bc7 Nc4 Bb6 Bc3 Bd4 Kd8 Ba7 Nb6 d7 Be5 Bc3 Bd4 Rc2 b2+ Ka2 b1Q+ Ka3 Qb4+ Ka2 Qb5 Bb2 Qbd3 R2c4 Nd5 Nf4 Qb5 Ba3 Ba1 Rc2 Qa6 Ne2 Rb5 Bb2 Nb6 Rd6 Qb7 Rd4 Qdc3 Rf4 Kc7 d8R Qc4+ Bb3 Qcc3 Rd6 Qc4 Re6 Kd8 Rc6 Qcd3 Ba4
QN2B1Bk/K1n5/2P1P1RP/b2q4/4q1q1/N1PN1n2/R1q1BB2/1Nrq1q2 b - - 0 1 legal: proof: f4 e5 fxe5 c5 a4 h5 d4 b5 axb5 a6 dxc5 h4 g3 Qc7 g4 Qd8 h3 g5 Bf4 a5 Be3 Rh5 Bc1 Bb7 Na3 Bf3 gxh5 g4 Nb1 g3 Bf4 Bg4 hxg4 Ra6 Be3 Rh6 Bc1 Rh8 Kd2 f5 Kd3 Kf7 Kc4 Kg7 b4 a4 e4 h3 g5 f4 c3 f3 c6 a3 b6 d5+ Kb5 h2 h6+ Kh7 b7 d4 e6 g2 e7 d3 e8B a2 e5 d2 e6 f2 Qa4 d1Q Na3 Qh5 Be3 Qd3+ Kb6 Nd7+ Ka7 Ngf6 b8N Ne5 b5 Nf3 b6 Rg8 g6+ Kh8 b7 Qc2 Be2 f1Q Na6 Bb4 b8N Nd5 Nc5 Nc7 Bf2 Qd5 Nd3 Rf8 Qa6 Ba5 Qc8 Rf4 Qb7 Rb4 Qa8 Rb1 g7+ Kh7 g8B+ Kh8 Nh3 g1Q Ng5 Rc1 Ne4 Qg4 Rg1 h1Q Nd2 Qhh4 Rg3 Qge4 Rg6 Qhg4 Rb1 a1Q Rb2 Qab1 Ra2 Qbb3 Ndb1 Qcd1 Be1 Qbc2 Bf2
N2n1K2/N2N3b/q6R/2nBB3/rq6/Pp1BPP1b/4BPRQ/N2r1b1k b - - 0 1 legal: proof: d4 c5 dxc5 a5 b4 g5 bxa5 f5 h4 f4 Nh3 g4 Qd4 f3 gxf3 Bh6 Qe3 Bg5 hxg5 e5 Qxe5+ Kf7 Qg7+ Ke6 Ng1 Kd5 Qe7 Kc6 Kd2 Kd5 Ke3 b5 Kf4 h5 Kf5 d6+ Kg6 b4 Kg7 h4 c4+ Kd4 c6 b3 c5 g3 a6 h3 a7 g2 c7 d5 c6 h2 g6 Bg4 c8N Nd7 a3 Nh6 c7 Bh3 Nb6 Qc8 Qd6 Rd8 Bf4 Nc5 Nd7 Nf7 Nc3 Qa6 c8B Kc4 Nb5 d4 e3+ d3 Ne2 g1Q Be5 d2 Bb7 d1B Be4 Qg4 Ned4+ Be2 Nc2 Bd3 Rg1 h1B Be2 B1g2 Rac1 Bf1 Rg2 Qf4 Bf5 Qd4 Na1+ Qc3 Re1 Qb4 Be4 Rdb8 Rb1 Nd8 Kf8 Rb6 Qb8 Rd6 g7 Rd4 g8B+ Rd5 Nd4 Kc3 Bf5 Kd2 Nb5 Bc2 Rc1 Be4 Rc4 Ke1 Rc3 Rd4 Bd5 Rd1 Rc4 Bd3 Rh4 Bc2 Bfd3 Bb1 B3c4 Bh7 Bed3 Be2 Rh6 Kf1 Rh2 Kg1 Rg2+ Kh1 Qc7 Rc8 a8N Bf1 Na7 Rb8 Be2 Rb5 Bcd3 Ra5 Bb2 Ra4 Qf4 Rc1 Be5 Rd1 Qh2#
1rbQRB1N/PNKn1B2/NRp4P/2rB2P1/k1Nr4/3bq3/7P/B2br3 b - - 0 1 legal: proof: f4 d5 g4 a5 b4 h5 gxh5 g5 bxa5 g4 c4 d4 c5 d3 exd3 Nd7 d4 Nb6 d5 Bh6 d4 Bg5 fxg5 Nc4 Bf4 Nf6 Bc1 Nd6 cxd6 Ng8 Kf2 Kd7 Kg3 b5 Kf4 f5 Ke5 b4 a4 f4 a6 e6 a5 b3 h6 g3 Nc3 g2 Bb2 f3 Na2 f2 Nf3 g1R Nd2 Rg3 Rb1 Rf3 Bc4 f1B Nb4 Bh3 Ba1 b2 Re1 Ke8 d7+ Ke7 Re2 Qe8 d8N Kd7 d6 Rb3 d5 Rc3 Nf7 Rh7 Nh8 Nf6 Bb3 Kd8 d7 Bg4 Bc4 Ke7 d8B+ Kd7 d6 Rb8 Be7 Rf7 Ba2 Bh5 Bf8 Rc5+ Nd5 Kc6 a7 Kb5 a8B Rg7 a6 Rd7 a7 Ka5 Re4 Qe7 Bc6 Rd8 Be8 c6 Bf7 Kb5 Qc2 Ka5 Qd3 Bd1 Re1 Ka4 d7 Rc1 Nc7 Rc3 Rc1 b1B Na6 Rc4 Qd4 Bd3 Rb1 Qe8 Kd6 e5 Rb3 e4 Kc7 e3 Rb6 e2 Qd6 Rd4 Qd5 Qe5+ Qd6 Re8 d8N Qf4 Nb7 Re5 Qd8 Nd7 Bae6 Qf3 Nc4 Rc5 Bd5 Qf2 Rf1 Qg1 Rf5 e1R Re5 Qe3 Re8
5Q2/2R2B2/2R3r1/R2Pbq1n/2N3PP/pB1n2bK/2qPBp2/BRrN2k1 b - - 0 1 legal: proof: c4 d5 cxd5 e5 a4 b5 axb5 Bc5 f4 Bb4 fxe5 Bf8 h3 h5 g3 h4 gxh4 Qd7 Ra2 Qd6 Ra1 Qd8 Kf2 g5 Ke1 g4 Qb3 g3 Qd1 Bg4 hxg4 Qg5 Nf3 Qe7 Ng1 Qd8 b4 Kd7 e4 f5 b6 c5 b7 a5 e6+ Kd6 b5 Ke5 e7 Kf4 e8B c4 b6 c3 e5 c2 e6 a4 e7 g2 Kf2 Qd7 Nc3 Nf6 Nf3 g1B+ Kg2 Nh5 Bf7 Bg7 e8B Bf2 Be2 Rh6 Ne5 Bg3 Nc4 Rg6 Bb2 c1Q Kh3 Na6 b8R Be5 b7 Nc5 Rc8 Qc2 b8R Nd3 Rc6 a3 Rc1 Ra5 Ra8 Rc5 Ra5 Qe6 Ba1 Qc8 Na2 Ke4 Qe1 f4 Qf1 f3 Nc3+ Kf4 Rc7 Qf5 Nd1 Ke4 Qf2 Rcc6 Qc5 f2 Qf8 Rc5 Ba4 Kf4 Re1 Ke4 Bf1+ Kf3 Bb3 Rcc6 Rb1 Rc5 Nc3 Rcc6 Rec1 Rc5 Nd1 Rcc6 Bg2+ Ke2 Bf3+ Kf1 Be2+ Kg1 Bf1 Rc5 Be2 Qa2 Nd6 Qb2 Rc4 Qc1 Re4 Rc3 Rec4 Qb2 R4c5 Rc1 Nc4 Qc2 R5c6
2bN1N2/1PNbk2n/p7/R1bpK3/PN2QB1B/4rR2/bn2PP1B/2r4B b - - 0 1 illegal: No proof kernel
n1qB2qN/3BP1r1/BNp3n1/2N5/1R1kNR2/rP5P/2P2p2/r3BrQK b - - 0 1 legal: proof: f4 e5 a4 b5 axb5 g5 fxg5 e4 h4 e3 g6 Ne7 dxe3 Nbc6 e4 Nb8 e5 Ng8 Bf4 h5 Bc1 Be7 Nf3 Bb7 Nh2 Bg5 hxg5 h4 Nf3 h3 Ng1 h2 Qd6 Bf3 Qd3 Bg4 Qd1 Bh3 gxh3 Rh5 Na3 Rh4 Nb1 Rh8 Kf2 Ke7 Kg2 Ke6 e4 a5 g7 d5 b3 f5 g6 c6 b6 a4 b7 a3 Nf3 a2 Bg5 f4 Nbd2 d4 Ne1 d3 Nc4 d2 Nd3 Qd6 Bd8 Ne7 g8N Qb4 g7 Qd6 Nb6 Ra4 Nc5+ Kf7 e6+ Kg6 e5 Kf5 Ba6 Ra3 Nf6 Qd3 g8N Qd5+ Nfe4 Nd7 b8B Ng6 e7 Rh7 e8B Rg7 Rf1 h1R e6 Qc4 Rf2 Rf1 e7 f3+ Kh2 Qe6 Bg3 Qf7 Bh4 Ke5 Nh6 Qg8 Nf7+ Kd4 Qb1 d1Q Nh8 Qd2 Qc1 Qe1 Qg5 Qc3 Qg1 Qa5 Re1 a1R Kh1 Qd2 Bg3 Qf4 Ree2 Qb8 Re3 Qc8 Bh4 Ndf8 Bd7 Ne6 Rc3 Nc7 Rc4+ Ke3 Rb4 Na8 Bf6 Ra5 Bc3 R5a3 Rg2+ f2 Rg4 Qh7 Be1 Qg8 Bc4 Kd4 Rf4 Qf7 Ba6+ Qc4 Rb5 Qg8 Rb4+
3N1r2/R5pP/4Bb2/3NR1NK/1P2P3/q2kBn2/pb1nP1bp/1R1Q1RN1 b - - 0 1 illegal: Other
1b2R1K1/4R1nr/Bpp1Q1q1/1p2BP2/2NRBR1k/bP1B1p2/1P3Pn1/1N6 b - - 0 1 illegal: Other
nB1N4/R1q1r2q/1qN3B1/B2N1P2/1B1Q1qP1/K1N1R2r/1P1Pn1r1/bb1k4 b - - 0 1 illegal: Other
bK1k1N2/4NB2/BP1BrR2/bN1b1Q1P/5R2/4qPBn/nN3b1P/qn2r3 b - - 0 1 legal: proof: e4 b5 g4 c5 d4 h5 gxh5 f5 dxc5 b4 exf5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 Kd2 g5 Kc3 e5 Kb4 d5 c4 d4 b6 a5+ Kb5 d3 b4 e4 c6 a4 c7 d2 c5 g4 f6 g3 b7 a3 Kb6 g2 b5 a2 c6 e3 f7+ Ke7 Qf3 d1B Qf5 e2 Nd2 e1B Nc4 Nf6 Bf4 Qd2 Nf3 g1N Nd4 Bf3 Nb2 Be6 c8B Ne4 Kc7 Ra6 Bc4 Nh3 Bg3 Nc3 Rf1 Qe3 b6 Rh6 Bb3 Bed5 Nb5 Re6 Bc4 Bh6 f8N Nb1 Bb3 Ba5 Bc4 Nd7 b8B Nc5 Bb7 Ra8 Ba6 Ne4 Kc8 Nec3 c7 Bg7 Bb3 Bd4 Bc4 Rc6 Kb7 Bc5 c8N+ Kd8 Bbd6 Ra7+ Kb8 Re7 Bb3 Re4 Ne7 Bd4 Bb4 Rce6 Bbd6 Ba8 Bd5 R4e5 Bc4 Bfd5 Bb3 Na3 Rab1 a1Q Rbc1 Na2 Rc4 Bc5 Rf4 Bd4 f3 Nb1 Rc1 Qc3 Rc2 Re1 Re2 Bf2 Re5 Rh6 Re6 Qe3 Rg6 Be4 Bf7 Bed5 Rg7 Rf6 Rg6 Re6 Rf6
2N2n2/1kb3RR/1P3K1B/P4n2/bbB1P1qR/b2R1PN1/1Q1n3B/r1q2rB1 b - - 0 1 illegal: No proof kernel
1n1b1Nqr/KBN2P1B/1nN5/2nq1Q2/B2P4/1Pq1n3/4PR2/Br1k1NRb b - - 0 1 illegal: No proof kernel
6N1/1PP3bn/BB4N1/qr2B2r/nqQRb1b1/k2NK2b/1Pr1N1PR/7B b - - 0 1 illegal: Other
B1Q4b/2N2P1P/N1qnRr2/R3bPk1/1npR4/BPBb1q1r/8/K1B1R2n b - - 0 1 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 Kf7 Kd2 Kf6 Kc3 g5 h4 e5 f4 c5 b3 a5 Kb2 c4 b6 g4 d6 a4 d5 g3 h6 e4 h5 g2 b7 e3 h7 e2 h6 e1B d7 Nc6 b8R Bg3 d6 Na5 Ne2 g1Q Nd4 Qb6 d8B+ Be7 d7 Qd6 Nc3 Qf2+ Nc2 Qf3 Nb4 Qdd5 Na6 Nb7 Bg2 Nd6 Nb5 Qc6 Re1 a3+ Ka2 Ra7 Rb6 Ra8 Kb1 a2+ Kb2 Bb7 Nbc7 Rc8 Qd5 Rb8 Qc5 Ba8 Rb5 Rb6 Ra5 Bh2 Rb1 a1N Re2 Nc2 Re6+ Kf7 f6 Kg6 f7+ Bf6+ Ka2 Ne7 Ra1 Nef5 Be7 Bg3 d8R Nb4+ Kb1 Bh2 Bh1 Ng3 f5+ Kh5 Bg2 Nh1 Rd7 Nb7 Rd4 Nd6 Kb2 Bb7 Rb1 Bhe5 Ka1 Qb5 Bf8 Be4 Qc6 Qc5 Qb7 Bc2 Qc8 Qcc6 Be7 Bd3 Bf8 Rg8 h8B Rg3 h7 Rh3 Bhg7 Qf2 Bd5 Qf3 Be4 Qc5 Ba8 Qcc6 Bgh6 Bh8 Bhd2 Rb8 Bc3 Rb6 Ba3 Kg5 Re1 Rb7 Ne8 Re7 Nec7 Re8 Bg7 Rg8 Bf8 Rg6 Bg7 Rf6 Bh6+ Kh5 Bf4 Kg4 Bfc1+ Kh5 B1b2 Kg5 Bc1+
N3rNR1/1bnRrBQ1/1b2q3/1r1P1R1N/K5Pk/3Pb2P/1bnp1B2/3N3R b - - 0 1 illegal: No proof kernel
4B3/NB5K/1r1nRr2/3PQNNN/1PbqPr2/p4Bn1/P3k2B/3bb1Rb b - - 0 1 legal: proof: h4 d5 e4 e5 exd5 g5 hxg5 b5 c4 e4 cxb5 e3 fxe3 Qe7 e4 Qd8 Ke2 Ke7 Kf3 Kd6 Kf4 Kc5 d4+ Kb4 g4 f5 b6 h5 d6 c5 d7 a5 b7 c4 g6 h4 g7 c3 g5 h3 g6 h2 Na3 c2 Ne2 a4 Nb5 Kc4 b4 a3 Bg2 Rh7 Ng3 Nf6 Kg5 f4 g8B+ Rf7 g7 f3 Kh6 f2 Nf5 f1B Bf4 c1R Qh5 Kd3 Na7 Na6 b8N Be7 d5 Qb6 d8N Rc6 Ne6 Nc7 Ng5 Nb5 Nd7 Rb8 Rg1 h1B Rc1 Qd4 Bh2 Ra6 Rc6 Rbb6 Re6 Nd6 Kg6 Rf8 Bf7 Be2 g8B Bd1 Qh8 Nh5 Qe5 Ng3 Be8 Ke2 Nf6 Bd7 Kg7 Bb5 Nh5 Bc4 Kh7 Bf6 Bgf7 Be7 Bc6 Bd8 Nh3 Bh4 Bfe8 Rf6 Ng5 Rf8 Ne7 Rf4 Bb7 Nf1 Nac6 Be1 Nf5 Ng3 Na7 Nb5 Rh6 Rf6 Rg6 Rab6 Rh6 Nd6 Rg6 Rf8 Re6 Rf6 Bf3+
Q1b5/1BbR1n1P/Kn1p1Nb1/PB2N3/1k6/2q1nBr1/2nP2P1/RNBN3r b - - 0 1 illegal: No proof kernel
1n4q1/4P2b/rr1BRRb1/R7/2pBNk2/1BPP1nN1/P3R1nb/K3QBn1 b - - 0 1 illegal: No possible last move
1R3Q1K/2n1P3/qP2BB2/1b1r1rPN/5B1R/2N3r1/NBP2kp1/2nbbNb1 b - - 0 1 illegal: No proof kernel
n1K5/rBP1rk2/R3R2n/Q2n1BR1/R1PqB3/PbB1Pr2/3Np3/br2N3 b - - 0 1 illegal: No proof kernel
2K5/1rnNB1QB/Rpq1b3/2qq3P/1b2Bk2/R2RBP2/1P2q1RP/3n2Nq b - - 0 1 legal: proof: e4 f5 exf5 c5 d4 Qb6 dxc5 Qc7 g4 Qd8 a4 h5 gxh5 b6 a5 Na6 Bd3 Rb8 Bb5 Rb7 Bf1 Nb8 a6 Nc6 axb7 Nb8 Bf4 a6 Bc1 a5 Kd2 Kf7 Kc3 Kf6 Kc4 Ke5 Kb5 d5 c4 g5 f3 d4 f6 d3 c6 a4 f7 d2 c5 a3 c7 g4 c6 g3 Ra2 g2 Nc3 Nf6 Ne4 Nd5 Nc5 Be6 c8B Ne3 c7 Kf4 Nd7 Rh7 Bd3 Qe8 Be4 Na6 Kc6 Rg7 Qe2 d1Q b8R Qd2 Kb7 Nd1 Ra1 a2 Ra8 Rh7 Qc4 Rg7 Qc3 Rh7 Rb1 a1Q Qg7 Qa3 Ra1 Qc5 Ra3 Qc6+ Ka7 Qd5 Bb7 Qc6 c8R Nc7 Kb8 Qd5 Nf6 Qec6 R8a6 Qdc5 Rd8 Q5d5 Re3 Qe2 Nd7 Qf2 Bb1 Qd3 Ne5 Qcc2 Qg6 Ba2 Kc8 Qdc4 Ra4 Nb5+ Bc6 e6 Ra6 Qcd2 Rd7 Bb4 f8B Qcc2 Rd6 Rb7 Rea3 Nc7 Nd7 e5 Qg7 e4 Be7 e3 Bd5 Qc6 Bh7 e2 Bde4 e1Q Rd5 Bb3 Ne2+ Ke3 Nf4 g1Q Nh3 Qfe2 Rd4 Qg5 Rf1 Qgc5 Rf2 Qh1 Ng1 Kf4 Rg2 Be6 Rd6 Qde3 Bd2 Qe5 Rdd3 Qed5 Be1 Qec1 Bf2 Q1c5 Be3+
1n5R/P1P4b/r2bN3/bR2RkP1/b3rp2/NB1NBP1b/2b2KR1/1Nq3Q1 b - - 0 1 illegal: No possible last move, all moves rejected
NB3nn1/1B1rR3/NR1b4/b2qp1Br/2p4P/1bk1P2P/R2B2P1/2K1QRr1 b - - 0 1 illegal: No possible last move
4N3/1r2Nb2/1P2Q1r1/1K2PB2/NBBbp1Pn/4P2B/q1R1Npkn/3bRn2 b - - 0 1 illegal: No possible last move
2RqRq1r/3Q1RN1/1N3Rbq/pn1P1B1n/1BNb2P1/1p4N1/1P1k1PK1/1r6 b - - 0 1 illegal: No possible last move
1N1b3q/1P1r1k2/1QRPBPpr/7R/Rqp3N1/P2qB2N/b1n2RK1/n6N b - - 0 1 illegal: No proof kernel
N2r4/p1Pb1K1N/n7/qNb1B3/Pq4rn/PPBp3n/2kQNR2/2B3RB b - - 0 1 illegal: No proof kernel
8/3n2rN/1b1BnqN1/R4k1r/R1P1r3/N1Rp1bRp/1P1PNrQP/2K4B b - - 0 1 illegal: Other
n5n1/5K2/1B2nbR1/N1B1Pp2/1Rp1rr1q/R4PnB/B1NP2bP/4RQk1 b - - 0 1 illegal: No possible last move
1n2q3/K4B1P/RNpnBpBq/RNn2q1Q/1rP5/B1b5/2PPbR2/1k5R b - - 0 1 illegal: No proof kernel
r5bB/b1Np2n1/7R/PKnr2b1/4Rrp1/PB1PPk2/NQR1n3/R2N1N2 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 b5 b4 Qg5 bxa5 Qe7 c4 b4 Qa4 Qc5 Qd1 Qb5 cxb5 Rh6 Nf3 Rh7 Ng1 Rh8 h4 Ke7 e3 Ke6 Ke2 Kd5 Kd3 c5 h6 g5 e6 f5 e7 g4 e8N b3 b6 b2 a3 f4 b7 f3 h7 f2 h5 Ne7 h6 Nbc6 b8N Nd4 Rh2 Nb3 Ne2 Nf5 Nc6 Be7 Ng3 Bg5 Qe2 Ng7 Nb4+ Ke5 Kc4 Bb7 Na2 Bd5+ Kb5 c4 Bg2 f1R Nbc3 b1N Nd1 c3 Nc7 Nc5 Bb2 Rf4 Nf1 Bg8 Bd5 Kf5 Qf2 c2 Bb3 c1B Bf6 Bb2 d3 Bd4 Qb2 Nc3+ Kb6 Ne2 Kb5 Kg6 Rf2 Kh5 Rg2 Ng3 Rc2 Ne2 Be5 Kh4 Bf6 Bd5 Be5 Rhc8 h8R Bg8 h7 Kh3 Bf6 Kg2 Be5 Kf3 Bf6 Be6 Re8 Bg8 Re4 Re8 h8R Re5 Rh6 Rd5 Be5 Na6+ Kc4 Ba7 Bf6 Nc5 Kb5 Nf5 Bh8 Ng7 Qe5 Rf6 Qc3 Rf4 Qb2
1B5K/5p1B/1bb1R2R/r5Rp/1PP1q2k/bPn2Pr1/2Q2b2/1Nb1BRNB b - - 0 1 illegal: No proof kernel
R2R4/2Bkn1p1/1qNb2N1/p3q1P1/PQ5q/RK5N/Pn2BP1q/N4Rrr b - - 1 2 legal: proof: e4 h5 Qxh5 d5 c4 Nc6 cxd5 Bh3 b3 Bd7 Qh7 f5 exf5 Nb8 Ba6 Kf7 Bf1 Ba4 bxa4 Ke8 Kd1 e5 Kc2 c5 d4 b5 h4 a5 g4 c4 h5 b4 f6 e4 d6 e3 d5 c3 g5 e2 d7+ Kf7 d6 Ke6 h6 e1Q f7 Nc6 Qe4+ Ne5 h7 Ne7 Nh3 Rc8 Nd2 Qb6 d8N+ Kd7 Nb3 Nc4 Be2 Nb2 Nc6 Qg1 Be3 Qh2 Bf4 Qb5 Rag1 Qe5 Na1 Re8 Kb3 c2 Rg4 c1Q Rg3 Qcc5 Rc3 Qcd4 Rf1 Rb8 Bg3 Rb5 Qb1 Qh4 Bf4 Rc5 Re3 Rc1 Rf3 Rg8 h8N Re1 Ng6 Rh8 Rh1 Rg1 Qe4 Kc8 d7+ Kc7 d8R Rh7 Ra8 Kd7 Be3 Rh6 Bb6 Rh7 Bc7 Rh6 Kc2 Rh5 Ra3 b3+ Kd2 Rh7 Qb4 Qh6 Qg4+ Nf5 Bd8 Nc4+ Kd3 b2 Kc2 Rd1 Qg1 Qg2 Qf1 Bd6 f8R Ne7 Nhf4 Qg1 Bc7 Qh5 Nd4 b1Q+ Kc3 Qb7 Qe1 Nb2 Rh8 Qa7 Kb3 Qb6+ Qb4 Qg2 Nc6 Qhg4 Re1 Rh1 Rhf8 Qh4 Nh3 Qgh2 Rh8 Rd5 Rb1 Rdd1 Rhe8 Rdg1 Rf1 Qh8 Reb8 Qh4 Rd8+
4NN2/1Np5/1nqRNP2/1q3k1K/3qp1nb/1QP1P1qB/RrR3PB/q4R2 b - - 0 1 illegal: No proof kernel
1R5b/bR1k2q1/3r4/Bp2qbrp/5RNP/1P1QPbR1/2rBB1P1/1BNK4 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 c4 g4 c5 g3 c6 Na6 a5 Nf6 fxg3 Nd5 g4 Nb6 axb6 Nc5 g5 Nb7 cxb7 Bh6 Bf4 Bg7 Bc1 Bf8 b8B d5 h4 a5 b3 h5 e3 c5 e6 f5 g6 d4 g7 d3 g8R d2+ Ke2 f4 b7 f3+ Kf2 c4 e7 a4 Nc3 a3 Be2 a2 Bd6 Ra6 b8R Qd7 Rg7 Rg8 Rg4 Rg5 Bc7 Rd6 Nd5 c3 Ba5 c2 Rg3 Qa7 Qf1 d1B Ke1 Kd7 Bcd2 c1R Rhh3 Rc2 e8B+ Ke6 Nf6 Qg7 Rc1 a1B Bg6 Bd4 Rg4 Ba7 Rhg3 Ke7 Rf4 Bf5 Ng4 Kd7 Ra1 Qe5 Raa4 Bg7 Rac4 Bh8 Rc6 Be6 Rcb6 Qg7 Be4 Bf5 B4d3 Rc1 Bb1 Rc2 Bc4 Qe5 Qd3 Qg7 Ne2 f2+ Kf1 Qe5 Nc1 Qg7 Re4 Bf3 Rf4 Ba8 Ke2 Bb7 Kd1 f1Q+ Be1 Qf2 Bed2 Bd5 Rd4 Qf4 Re4 Qfe5 Rf4 Bde4 R6b7+ Kc6 Qd4 Bd5 Be2 Bf3 Bc7 Kd7 Qd3 Ke7 Bd8+ Ke8 Bc7+ Kd7 Bca5+
B1NkBK2/1R3n1b/2q2B2/1pR1rp2/2nN2PP/4p3/Rr1PbPB1/3r1R1Q b - - 0 1 illegal: No proof kernel
qnQB2b1/1pbNrn2/r1PRPK1k/p7/B3p2P/2N2B2/N1Pr1NB1/7R b - - 0 1 illegal: No proof kernel
2B2R2/1Nq3PK/1QBk1b1P/1n4Rp/3B1n2/Nbp2r2/PRPR1pB1/6nb b - - 0 1 illegal: No proof kernel
4b3/4K1pn/1b2b1R1/2B1R1R1/1PprNk2/p2B1BN1/PRqnn1PP/3B3Q b - - 1 2 legal: proof: e4 b5 c4 e5 cxb5 Ke7 d4 Na6 dxe5 Nc5 f4 Na6 e6 Kf6 e7 Nb8 e5+ Ke6 Qh5 Kd5 Qxh7 a5 f5 Ra6 Bg5 Rb6 Bc1 Re6 fxe6 Kc5 Kd2 Kd4 e8B f5 b4 Ke4 Kc3 d5 e7 c5 e6 d4+ Kc4 a4 b6 a3 b7 d3 Ba4 d2 e8R d1B e7 Qa5 Bd3+ Ke5 Nd2 f4 Rb1 f3 Ne2 f2 Re1 f1N Rb2 Qa7 Ng3+ Be2 Bd1 Nf6 Nde4 Nc6 b8R Nd4 Be3 Qa4 Rb6 Bh5 Rd8 Bd7 e8B Ne2 Bf7 Bg6 Bd5 Be6 Rb5 Be8 Rd6 Rg8 Qh6 Nh7 Bg1 Qa6 Qc1 Qc8 Qb1 Kf4 Qa1 Bh3 Rg6 Qc7 Bc6 Nd2+ Kd5 Be7 Bd4 Bd8 Qb1 Qc8 Kd6 Bb6 Ke7 Be6 Bb7 c4 Rbg5 Qa8 Bc5 Qa4 Nf2 Qc2 Bf3 Rf8 Nfe4 Rf5 Qc1 Rd5 Nf2 Nd4 Ree5 Ne2 Nfe4 Rd4 Qa1 Qc3 B1c2 Qb3 Qh1 Qa4 Bd1 Qb3 Qe1 Qc2 Qh1
2qnBkQN/2p2q2/5R2/q1R5/3NpRPp/Bb1rP1P1/1P1n4/K2NRNb1 b - - 0 1 legal: proof: c4 b5 a4 d5 axb5 a5 cxd5 g5 f4 Ra7 fxg5 Ra6 g4 Rf6 Nh3 Rf3 Ng1 Rg3 hxg3 Ba6 Rh5 Bb7 Rh1 Bc8 d4 f5 Kd2 e5 Kc2 h5 b6 h4 e3 e4 g6 a4 b7 f4 d6 f3 d7+ Ke7 g7 a3 d5 a2 d6+ Kf7 Qd5+ Kg6 Bb5 f2 Nh3 f1Q Nd2 Rh6 Nf2 Na6 b8N Be7 Nd1 Bf8 Nc6 Bb7 Nd4 Qe8 d8R Qff7 d7 Ne7 Rf1 Nc6 Rf4 Bb4 Nf1 Nc5 Bd2 Nb3 g8R+ Kh7 Rc8 Rd6 Rg5 Nd8 Rb1 Ba5 Bb4 a1Q Ba3 Nd2 Qb3 Qee6 Rc5 Kg8 Ra8 Qa2 Ra6 Kf8 Rb6 Qe8 Ra1 Rd5 Rbf6 Ba6 Ba4 Bc4 Qb8 Bb3+ Kc1 Nb7 d8N Qd7 Qa8 Qc8 Be8 Bc3 N8c6 Nd8 Ne5 Nc4 Qb8 Be1 Qa8 Bf2 Ng6+ Kg8 Nh8 Kf8 Nb5 Rd3 Nd4 Nd2 Qd5 Bg1 Qa8 Be6 Qb8 Qd5 Qa8 Nb3+ Kb1 Qe5 Ka2 Qd5 Rac1 Nd2+ Ka1 Qe5 Nf2 Qh5 Re1 Bb3 Nd1 Qe5 Qc6 Qd5 Qe6 Qda8 Qd5 Qa7 Qg5 Qa5 Qg8+
RN4B1/Kpp1P2k/4Pn1q/1PnRq2N/RbpN3n/1bP4R/rQ3BN1/8 b - - 1 2 illegal: Other
2n5/P1pp2P1/2N1bK2/PprkN1BB/R1N5/1P3n1n/NQq1r1R1/B1B4q b - - 0 1 illegal: No proof kernel
1B4RK/PN6/BpN5/br1qQ2p/1RNp1kbn/2q1R1N1/Rn2P1PP/6n1 b - - 0 1 illegal: Other
nk2N2n/N2N1pb1/QN1qq3/2p3Rp/1n3P2/KP2Pr1B/1BP3r1/1RBB4 b - - 0 2 legal: proof: h4 b5 a4 e5 axb5 e4 Ra6 e3 dxe3 Nc6 Ra1 Nb8 Nd2 d5 Nb1 g5 hxg5 d4 Kd2 d3 Kc3 d2 Kc4 Bd7 Kd3 Nh6 Ke4 Bf5+ Kf3 Bd3 exd3 Ng8 Ke2 Qc8 Nh3 Qd7 Ng1 Qd8 f4 Kd7 g4 Kc8 g6 h5 d4 c5 Kd3 a5 Kc4 a4 g5 a3 Kb3 a2 b6 Bd6 b7+ Kc7 d5 Na6 b8N Kc8 g7 Qa5 g6 Qb6+ Ka3 Qb7 b3 Qb5 Nc6 Kc7 Bh3 Be5 d6+ Kb7 d7 Qd3 d8B Qc3 Bf6 Nb4+ Na7 Qc4 Nc3 Re8 Qe2 d1N Nd5 Ne7 g8B Kb8 g7 Nc3 Bh7 Ng6 g8N Na4 Nf3 Nb6 Rg1 Na8 Nb6 Qe6 Rg5 Rd8 Qb5 Rd1 Rb1 Rf1 Qa6 Ba1 Ne5 Rf3 Bg7 Bc3 Nf6 Rg8 Ne8 Nh8 B7f5 Bb2+ Ka4 Bd4 Bfg4 a1Q+ Ba3 Qc3 Bc1 Qd2 Ka3 Qd1 Ng6 Bc3 Nf8 Qdd6 Be5 Rg3 Bd1 Rf3 Rf5 Rg2 Rg5 Be1 Ba1 Bc3 Bab2 Bg7 Nfd7+
q2B1qB1/1q2BN2/1p2b1B1/np5P/Q3P1k1/K1Pnp3/1Prr1RN1/N3N1R1 b - - 0 1 illegal: Other
1r1b2Qq/b1B1PB2/3Kp3/3N2B1/b3p1Np/1R1R1PRP/n1kP2R1/1rBb4 b - - 0 1 illegal: Other
2BBb2b/2R1p1P1/K2p3r/2N1P1q1/3p2Br/1NQPb1R1/2NNP1B1/4qq1k b - - 0 1 illegal: Other
1n1n4/3BqpPQ/2b2R1N/2N5/2PP1P2/1r2NNkp/r1p1B1p1/BB2KR1b b - - 0 1 illegal: No proof kernel
B2R4/r1NpK1P1/2RB4/8/1r1pprP1/n2P1N1k/QNpP1n1B/N1Bq1b2 b - - 0 1 illegal: Other
Bq5Q/6N1/nBr1pN2/1Np1Bk1P/2r1b3/p4qP1/2pPPbRB/3R1K1N b - - 0 1 illegal: Other
1B3B2/1Np1Np2/p1r1q3/1p1P2n1/1BQN1P1K/NR2bB1P/1P2p2R/1bnk4 b - - 1 2 legal: proof: a4 h5 c4 b5 g4 d5 cxd5 Rh7 gxh5 Rh6 a5 Rh8 d4 Nd7 e4 Nb8 e5 Kd7 d6 Ke6 d5+ Kf5 e6 Qd7 exd7 Kf6 Qd2 Nc6 Qe2 Rb8 Qd1 Rb6 axb6 Nb8 d8N Kf5 f4 Ke4 Kf2 g5 Kg3 e5 b7 g4 h3 a6 h6 Nd7 b8B Ngf6 h7 Nc5 d7 Nb3 Ra5 Bc5 Nc6 Be3 d8N Bf5 Bd2 Nc1 Ne2 Kd3 Na3 e4 Kh4 g3 Nb7 g2 Ne7 g1Q Qa4 Qg6 Rh2 Rg8 h8B Nh7 Bd4 Qe6 Bg7 Ng5 Bf8 Rg6 Bg2 Rf6 Nd4 Bg6 Ndc2 Ke2 Qc4+ Kd1 Bf3+ Ne2 Bg7 Qe5 Bg2 Ba7 Bf3 e3 Bf8 Rc6 Bb4 Qe6 Nb1 Bh7 Ra3 Bd3 Bg2 Nc1 Bf3+ e2 Rb3 Be3 Nba3 Bf5 Nd4 Bg6 Bh1 Bb1 Bf3
nb2B3/nbpKR1BB/1RPR4/3n1Pkq/3P1r2/R1Q1pq2/Nr2P3/3qN2B b - - 0 1 illegal: No proof kernel
5qn1/nr2k2P/1B1P1prb/1b3B1N/2p1RPB1/B1Pr1b2/2N3QN/b1R1N2K b - - 0 1 illegal: No possible last move, all moves rejected
6rR/1rPknN2/1p2b3/3B2rP/pP1qQ1n1/4Rb2/PNKB3b/B1B1rNN1 b - - 0 1 legal: proof: e4 f5 exf5 h5 d4 c5 dxc5 Rh6 g4 Rh7 gxh5 Rh8 Kd2 e5 h4 g5 c4 a5 f4 d5 b4 g4 f6 d4 h6 e4 f5 g3 c6 g2 f7+ Ke7 h7 a4 c7 e3+ Kc2 e2 c5 e1R c6 b6 f6+ Ke6 Bc4+ Qd5 Qf3 Bd7 c8N Re4 c7 Rg4 Nd2 Rg5 Nd6 Ra7 Nf1 Nc6 Qe4+ Ne5 Rb1 Be7 f8B Rb7 f7 Bc8 Bb3 Kd7 Nc4 Ng4 Nb2 Bd6 Bh6 Bh2 f8B Ne7 Bfg7 Rg8 h8N Qe5 Nf7 d3+ Kd1 d2 Bd5 Qf6 Kc2 Qd4 Ra1 Bf4 Rh3 Bh2 Re3 d1B+ Kb1 Bf3 Kc2 Ke8 h5 Bf5 Bd2 Kd7 Rae1 Be6 Bc1 Qc5+ Bc3 Qd6 B3d2 Qf4 Bg7 Qe5 R1e2 Qd4 Rf2 Be2 Rf6 Bf3 Rh6 Rbb8 Nd3 Rb7 Rh8 Qc4+ Bgc3 Qd4 Ba1 R5g7 Nb2 Rg5 Nh3 g1R Ng3 Rd1 Nf1 Re1 Ng1
2NN1nBK/1kbq3B/bPNBQppR/3n1n2/br3P1B/5N2/1R4PP/1r1b4 b - - 0 1 illegal: No proof kernel
Bb3nk1/1R1B4/2R2q2/2prPpP1/n3NP2/qbPr3B/1NbBKbQ1/1RR5 b - - 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 h4 Bd6 hxg5 Bf8 b4 d5 e4 h5 g4 c5 f4 f5 g6 a5 e6 d4 b6 a4 e7 d3 g7 Kf7 b5 h4 g5 a3 b7 a2 e5 h3 b6 d2+ Ke2 h2 Bg2 Ra3 Bh3 Nd7 b8R Ngf6 e8B+ Kg8 b7 Rd3 Qf1 Ne4 Nf3 Bd6 Qg2 Nf8 Na3 Be6 Bd7 Bb3 Rb1 a1B Nc4 Qf6 Rc8 Bd4 b8R Bf2 Rb7 Bb8 Nb2 Rh7 Rd1 h1Q Rc6 Qh2 Rf1 Qg3 Re1 Nd6 Rf1 Nc4 Rd1 Nb6 Rg1 Kf7 g8B+ Kg7 Bd5 Na4 Be4 Kg8 Rh1 Qh2 c3 d1B+ Kf1 Rh8 Nd2 Bdc2 Ke2 Rh7 Rf1 Re7 Rg1 Re6 Bf3 Red6 Ne4 R6d5 Bd2 Qh1 Bhg4 Qh7 Bh3 Qhe7 Rgf1 Qd8 Rfc1 Qa5 Rd6 Qb4 Rc6 Qa3 Ra6 Qd6 Nf6+ Kh8 Rba7 R5d4 Ba8 Rd5 Ne4 Kg8 Rc6 Qf6 Rb7
b2nQ3/NN3P2/1r3P1n/1B1pb2K/n1RB1p1N/1r1P1PNp/4R3/Bkq2Br1 b - - 0 1 illegal: No proof kernel
2R1n2q/bNR1np1p/2bpBbP1/qBPN1P2/2N2Qr1/2BK1k1P/2r5/3N2B1 b - - 0 1 illegal: No proof kernel
Q2Nb3/P2B1p2/4qrR1/pn2p1R1/PB3P2/1RRB1bn1/2NBPK2/kbb2b2 b - - 0 1 illegal: No proof kernel
Qb4R1/RB6/rp1RBkq1/2B3R1/N2np1N1/pPP1p2K/Pb1rP1n1/B4n2 b - - 1 3 illegal: Other
Nr4QN/ppn1p2B/2PNPB2/1PB1k1n1/R1PR4/6n1/K3pN2/B1qbb2r b - - 0 1 illegal: Other
1BQ2bq1/B1Ppbrp1/2k1Br2/2pP2N1/4R1nP/1pPn2K1/bNN5/1N1R2B1 b - - 0 1 illegal: No possible last move, all moves rejected
2Bn2r1/PR3pNb/5KBN/1P5N/Rpp2P2/1PkBN1bp/1Q1qn1p1/r1B5 b - - 0 1 illegal: No proof kernel
1n2RK1B/2Q2n2/4rNPB/P1RrN1n1/1q2N1P1/b6r/BRP2bP1/3q1k2 b - - 0 1 legal: proof: d4 a5 b4 c5 bxa5 f5 dxc5 g5 f4 b6 fxg5 f4 h3 f3 exf3 Ba6 f4 Be2 f5 Bg4 hxg4 Bh6 Ba6 Bg7 Bf1 Bf8 Kd2 Kf7 Kd3 e5 Ke4 h5 Kd5 e4 a4 b5 a6 h4 a7 e3 g6+ Kf6 c6 Kg5 c7 Kf4 c8N Kg3 f6 Kf2 f7 e2 a5 e1B Ne7 b4 Kd6 h3 Bc4 b3 Na3 h2 Bd2 b2 Ne2 b1Q Ba2 Rh3 Nc3 Nh6 Nc4 Qb2 Ne5 Qb4+ Kd5 d6 Ke6 d5 Rb1 d4 Rb2 d3 Ng8 Be7 f8B Nf7 Bg5 d2 Bfh6 Qdd4 Qb1 d1R Nf6 Qd8 Qa1 Rd5 Nce4+ Ke2 Qc1 Bf2 Qf4 Bec5 Rd1 h1N Bg7 Bd6 B5h6 Ng3 Bh8 Be7 Rd3 Kf1 Rc3 Bf8 Rc5 Bd6 Nc3 Ne4 Qg3 Nd2 Nce4 Nf3 Ne8 Qd7+ Kf6 N3g5 Kg7 Qf5 N8f6 Qf3 Qh2 Qd1 Qf4 Nc6 Qg3 Re8 a8R Re6 Re8 Be7 Nc4 Nb8 Qc7 Bd6 Ne5 Qc3 Rc4 Ba3 Rc5 Qb4 Kf8
1K1N2Rb/1p2Bk1q/4R1r1/1Bq1Ppn1/BP3P1Q/3RbN2/rP1P4/3Nn3 b - - 0 1 illegal: Other
k4N2/B2N3q/1qn1r3/NB4B1/r2P1P2/1K2RbPP/2n1qbPR/2brR1Q1 b - - 0 1 illegal: No proof kernel
4RnqR/2P1P2B/r1bNP1n1/rk1N1KP1/rb3B2/PQ6/2nR1BN1/2bq4 b - - 0 1 illegal: No proof kernel
1qRRQ3/RN2r1b1/q1PqqP1r/2Bbn1Pn/2Bk4/1n1P1P2/N2B4/5N1K b - - 0 1 illegal: No proof kernel
b1BQqrkB/1qr3n1/B3PP2/1RnpP2R/5PN1/2qNN3/P6R/bb3K2 b - - 0 1 illegal: No proof kernel
1n1Qq1r1/8/P2NrqPK/1B2PBN1/2bn1n2/1P1PR3/1R1BkpRN/r1b5 b - - 0 1 illegal: No proof kernel
1B1Bq2N/1Qp1PB2/r2rRrrN/R3P1P1/2P1n2k/N3Pnr1/3R4/Kb2b3 b - - 0 1 legal: proof: d4 g5 e4 e5 dxe5 b5 h4 b4 hxg5 b3 axb3 Qf6 b4 Qf4 b5 Qe3+ fxe3 Kd8 Qg4 Ke7 Qd1 Ke8 Kd2 Ke7 Kc3 d5 g4 h5 b4 f5 Kb2 a5 c4 h4 e6 a4 b6 f4 b5 f3 g6 Kf6 e5+ Kg5 b7 f2 g7 d4 b6 a3+ Ka2 d3 Bb2 h3 Ne2 h2 Bc1 d2 Bg2 f1R Qb3 d1R Nf4 Bb4 Bd5 Nf6 g8N Ne4 Ng6 Nc6 b8B Ra6 b7 Rf6 Nh6 Rg8 Nh8 Kh4 g5 Rgg6 Bd2 Ba5 Bb4 Nd4 Be7 Nf3 Bd8 Be1 e7 Bf5 Bf7 Rdd6 Rf1 h1Q Rf2 Qg2 Rd2 Qh2 Nc3 Qe2 Nb5 Qd1 Qb4 Qa4 Kb1 a2+ Kb2 Rd3 Na3 Rdd6 Re2 Bh3 Nb5 Bf1 Ba7 Rdc6 b8R Rce6 Rb6 Rc6 Rf2 Bd3 Bb8 Bb1 Re2 Rcd6 Rc2 Rd2 Re6 Rad6 Qb3 Rg2 Rd2 Rg4 Nc3 Qe8 Qb7 Rg3 Nb5 Bd3 Rad1 a1R Rb1 Raa6 Ra1 Kh5 Ra5 Kh4 Ka1 Bb1 Na3
6K1/1P3nPB/R1PB1NN1/4Bbpk/b4P1P/3b3r/2RN1Q2/R1bnqrb1 b - - 0 1 illegal: No proof kernel
1K1Q2B1/RPP2Rr1/k1Pp4/1NBP1b2/4r2N/1R1Nnnn1/Pq1r1qB1/5r2 b - - 0 1 illegal: No possible last move, all moves rejected
1q1B2n1/4R3/1R5r/k1PrP2q/n1pnB1Pn/RQ1N1N1K/2PBPb2/1N1r4 b - - 0 1 illegal: No extended proof kernel
nN6/4bNPr/4kP1N/1b3pBr/2B2K2/Qr1RPnBP/1Rp1bPR1/7q b - - 0 1 illegal: No proof kernel
N1k2R1r/pR1R4/n1B2PNn/1b1P1np1/1Qr1P3/K5P1/1NqP3B/1Bq2q2 b - - 0 1 illegal: No proof kernel
1n2B1qr/KPPr1N2/5rp1/k2Rn3/B4RP1/R2NN2r/2Q1PbPp/3n2B1 b - - 0 1 illegal: Other
1rR5/n2PpK1b/6rR/2B5/r1p1R2r/2P1BNq1/N1b1PPPk/2NQ1b1B b - - 0 2 illegal: Other
1B6/4nN1p/2BP4/NnR1R1N1/b1P1pqP1/2R2qQP/4kbPn/4BrnK b - - 0 1 legal: proof: a4 a5 d4 g5 f3 b5 axb5 g4 fxg4 c5 dxc5 d5 e3 d4 e4 Ra7 Ra4 Rd7 Ra1 Rd5 exd5 Bg7 Qf3 Bh6 Qd1 Bf8 Kf2 Kd7 b4 f5 c4 e5 c6+ Kd6 b6 f4 b7 d3 b5 Kc5 h3 Kd4 c7 d2 b6 a4 Be2 e4 Kf1 Ke3 Nc3 a3 Nf3 a2 Kg1 Nc6 b8N Ne5 b7 Bc5 Nb5 Qf6 Nd6 Ne7 Ng5 f3 Ndf7 Bd7 c8R Rf8 d6 Ba4 Qe1 Qf4 Qg3 Bd4 Ba3 d1N Nc6 Nc3 b8B Nb5 Bb4 Bb6 Rf1 a1Q Be1 Qc3 Bd1 Kd3+ Kh2 Bf2 Na5 Qa3 Bc2+ Ke2 Rc5 Be3 Rd5 Qf5 Nd8 f2 Rc5 Bb3 Bc7 Nc3 Bd2 Qf7 Rhg1 Nf3+ Kh1 Bd4 Rd1 f1N Bb8 N1h2 Rgf1 Be3 Be1 Ng1 Rff5 Qf6 Rfd5 Qe5 Ra1 Rf1 Rc1 Qf4 Ndf7 Bd4 Re5 Bf2 Bb1 Bd1 Ba2 Bc2 Bb3 Bd1 Ba4 Bb3 Bc6 Nb5 Bc7 Ba4 Bb8 Qaf3 Rc3
NqB5/r1p1r1n1/2qP1k2/Nq1pP3/1R1B1B2/1RqR2P1/1bP2Pb1/4Q1KN b - - 0 1 illegal: No possible last move
R1N2B2/2P2Pnp/2N4p/PbKP2Q1/pPRnBr1b/1R3N2/2k2B2/r5rq b - - 0 1 illegal: Other
n4r1R/P4N1B/P1P1KpB1/1pR1Rn1r/p4NQ1/1Pb2N2/Pp5q/2B1rk2 b - - 1 2 illegal: Other
1KBNb3/2N2k1P/1P2p1r1/Bn1p2rn/ppbb2P1/P1R5/5PR1/BQ3R1N b - - 0 1 illegal: No proof kernel
N1B3b1/RnpK1nb1/q1r1p2b/1pPk1b2/2rPBBP1/1P6/4RRNP/4QN2 b - - 0 1 illegal: No proof kernel
N2RK2b/1p1B3P/5BRk/n2bQp2/nB4P1/nr2p3/nP1P1PN1/1R1qrN2 b - - 0 1 illegal: Other
3k4/PqQ3bK/BN6/nqn2R1Q/2q2Q2/r1BPPR2/PN1Pb1r1/1R1r4 b - - 0 1 legal: proof: b4 d5 Na3 e5 Nb1 a5 bxa5 d4 Nh3 d3 cxd3 e4 Ng1 Qd5 Nf3 Qd6 Ng1 Qd8 g4 h5 gxh5 e3 fxe3 f5 Bg2 f4 Bf1 f3 exf3 Qd4 Qa4+ Qd7 Qd1 Qd8 Kf2 g5 Kg3 b5 h4 c5 a6 g4 Kf4 c4 h6 b4 h5 b3 a7 c3 h7 c2 h6 g3 Bb2 c1R Qc2 g2 Na3 Nd7 Kf5 Qc7 Kg6 Qe5 f4 Qc5 f5 Nb6 f6 Qc3 f7+ Kd7 Nf3 g1Q+ Bg2 Na4 Rb1 Rd1 Ne5+ Kd8 Rh5 Nc5 Nec4 Bg7 Rf5 Qh1 Nb6 Qc4 Bb7 Rb8 Bc3 b2 Ba6 Qb7 Qa4 Bd7 f8R+ Be8+ R8f7 Bd7 Rf3 Bg4 R7f5 Rc8 Qc6 Rc7 Qe4 Rc8 Qf4 Ne7+ Kg5 Re8 h8Q Nc6 Kg6 Na5 h7 Rc7 Qg8 Rf8 Qe6 Rg8 h8Q Rc8 Qf7 Rb8 Rh3 Be2 Rf3 Rc8 Kh7 Rb8 Rc1 b1Q Qh5 Qbb5 Rb1 Bf8+ Qf7 Rg2 Qhe5 Bg7 Qh5 Qca4 Nac4 Rc8 Nb2 Qac4 Qhg4 Qcb4 Nd5 Na4 Bd4 Rc3 Nb6 Q4c4 Qh5 Ra3 Bc3 Nc5 Qc7+
4Kn1k/P3Rr2/2PN2P1/1qb2PQb/1RP2Br1/2R2Bn1/4N3/r3BnnQ b - - 0 1 legal: proof: b4 a5 bxa5 g5 h4 b5 hxg5 f5 e4 c5 exf5 b4 d4 b3 dxc5 Nh6 axb3 Na6 b4 Ng8 b5 Nb8 Ke2 Kf7 Kf3 Kg7 Ke4 e5 Kd5 h5 f4 e4 g4 h4 c4 e3 b6 d6 a6 h3 a7 e2 f6+ Kh7 f5 e1N b7 h2 f7 Nf3 c6 Bd7 Nd2 Be8 Ke6 d5 Bg2 d4 Ra3 d3 Ne4 d2 Ne2 Ne7 Nd6 Rg8 g6+ Kh8 g5 Ng1 Bf3 Qb6 Rc3 Nd7 b8R Nd5 Rb7 Qa6 Rb4 Ne3 Qe1 Be7 f8B d1R Qf1 Qb5 g7+ Kh7 Bd2 Bh5 Be1 Ra1 Qh3 Rc8 Qh4 Rc7 Qe4 Bg4 Kf7 Nf1 Ke8 Rb7 Nf7 Bc5 Nd6 Nh3 Rg1 h1N Rg3 Ng1 Qb1 Nb8 Re3 Rf7 Re7 Bh5 Rh3 Nhg3 Qc1 Nd7 Qd1 Rh8 g6+ Kh6 g8Q+ Kg5 Qd2+ Kf6 Bh6 Nf8 Qh7 Nh1 Be3 Nhg3 Qh6 Rhh7 Qg5+ Kg7 Bf4 Kh8 Qh6 Bg4 Qg5 Rh4 Qd5 Bh5 Bh1 Ne4 Rc3 Neg3 Qg2 Rg4 Qh2 Bb6 Bf3 Bc5 Qh1
k5BN/3b2b1/1n1b3P/2P2R2/1q1QP3/P3b1P1/1q1QRqRN/BB3rnK b - - 0 1 illegal: No proof kernel
1b2Q3/rN4RP/1Q1bqnPb/2P5/1qP4R/3K1BBr/1Q2P2B/1r1Nk2b b - - 0 1 legal: proof: d4 b5 h4 g5 g4 c5 dxc5 e5 a4 h5 axb5 Be7 f4 Bf8 fxe5 Nc6 gxh5 g4 Ra2 Nd4 Ra4 Ne6 Ra1 Ng5 hxg5 Qf6 Nh3 Qe7 Ng1 Qd8 Kd2 Ke7 b4 Ke6 c4 Kf5 h6 Kf4 g6 Kg3 e6 Kf2 e7 f5 e8Q a5 b6 d5 b5 a4 b7 d4 b8B f4 b6 d3 b7 g3 Bc7 f3 b8Q a3 Qf7 g2 Qh7 a2 Be5 Qa5+ Nc3 Nf6 Qhb7 Bd6 Rh4 Ra7 Qa4 Qb4 Qb6 Bb7 Bh2 Ba8 Rb1 a1B Qc2 Bb2 Qe8 Ba3 Qb2 Bb7 Kd1 d2 Kc2 d1R Ne4+ Ke1 Nh3 g1B Bcf4 f2 Bg2 f1Q Bf3 Bc6 Ra1 Rb1 Nhf2 Qh3 Bfg3 Qe6 Nd1+ Bf2 Kd3 Bb7 Qa2 Bc1 Qb2 Bb8 Nd6 Bg5 Bh5 Bh1 Bf3 Bf4 Nb7 Bfd6 Be5 Be3 h7 Bh6 Ra3 Rf8 Ra6 Nd7 Ra2 Rf4 Ra3 Nf6 Ra2 Rg4 Bef4 Rg3 Ra6 Ra8 Ra7 Rh3 Bfg3+ Kf1 Na5 Nh5 Rd7 Ra7 Nb7 Nf6 Bf4 Ke1 Rg7 Ra4 Be5 Ra7 Beg3+
2n1n1BB/r4Q1n/2n1bPb1/P2kP1N1/3n1K2/P1NQ1R2/3PRb1R/2B3r1 b - - 0 1 legal: proof: g4 a5 e4 f5 exf5 h5 gxh5 d5 b4 e5 bxa5 e4 c3 d4 cxd4 Qd7 Qg4 Qd6 Qd1 Qe5 dxe5 Be7 Bc4 Bb4 Bf1 Bf8 Ke2 Ke7 Ke3 b5 h4 c5 f4 g5 h6 c4 a3 g4 h5 c3 h7 b4 h6 c2 f6+ Ke6 f5+ Kd5 f7 b3 f6 g3 Qe2 g2 Qh5 b2 Rh2 Ne7 Qg6 Ra7 Qg7 Nbc6 Ra2 Rg8 h8B Be6 h7 Nc8 Nh3 g1N Ba6 Bc5+ Kf4 e3 f8Q e2 Qgf7 e1N Q7e7 Ngf3 Qee8 Nh4 Re2 Nf5 Ra1 Ng7 Qef7 Nf3 Ng5 Bf2 Qb4 Ne8 Qc3 Rg7 Ne4 Rg3 Ng5 Rg1 Qb3+ Kd4 Nc3 b1B Bc4 Kc5 Bb2 c1N Qc2 Nb3 Bc1 Nbd4 Qd3 Bc2 Rb1 Re1 Rb3 Rg1 Bg7 Bb1 h8R Bc2 Rh2 Bb1 Nh3 Ng5 Bh8 Nh7 Ng5 Bf5 Qb7 Bg6 Bg8 Ba2 Rb4 Be6 Qf7 Nf5 Rbe4 Nfd4 R4e3 Rh1 Qb1 Rg1 Rf3 Kc4 Qd3+ Kc5 Nb1 Kd5 Nc3+
3n4/nb1P3r/1Kb1Rr1Q/1n4P1/1B1R2NB/3P1Nr1/Pn1rPQQ1/5B1k b - - 0 1 illegal: No possible last move
Br1R4/q1NKPR2/qB1NQ3/2bN3k/2P2Q2/2P1PP2/q2R1b2/1n1q1b1q b - - 0 1 legal: proof: a4 a5 d3 g5 f3 f5 Kd2 b5 axb5 c5 h4 e5 Kc3 g4 Kd2 c4 dxc4 Ra6 Nh3 Rg6 Ng1 Rg5 hxg5 f4 Nc3 e4 Nb1 Nc6 fxe4 f3 e5 f2 Ra3 Nd4 Ra1 Nf3+ gxf3 Bb7 Ra4 Ba6 Ra1 Bc8 Ke3 Kf7 Kd4 Kg6 Kd5 h5 b4 a4 c3 a3 b6 h4 e6 d6 Kc6 a2 b7 h3 b8N g3 b5 h2 b6 d5 b7 g2 e7 d4 Qe1 d3 Na3 d2 Nb5 d1Q Nd6 Rh4 Na6 Rh5 b8Q Qb3 Nh3 g1B Nc7 Nf6 Be3 Ne4 Bb6 Rh8 Rd1 a1Q Rd2 Kh5 Nf4+ Kh4 Qa8 Qba2 Nfd5 Kh5 Qb8 Rg8 Bh3 f1Q Bf5 Bf2 Rg1 h1Q g6 Bh6 g7 Bhe3 Rg6 Bc5 Rf6 Qfg1 Rf7 Rf8 Bh7 Bh3 g8R Bf1 Bf5 Qa6 Bc8 Qb2 Bb7 Qba2 Ba8 Re8 Qb7 Qb8 Kd7 Qba7 e3 Rb8 Qc8 Rb7 Rd8 Rb8 Rb2 Nd2 Qd1 Ne4 Qd4 Nd2 Qf4 Nb1 Rc2 Bd3 Rd2 Qd1 Ke8 Be2 Qe6 Bf1 Kd7
8/R3Kp2/NPP1N3/2P1B2P/2rn1Qr1/1nn3Q1/1rbPRN1q/k2B1Rn1 b - - 0 1 legal: proof: b4 b5 f4 c5 bxc5 d5 a4 e5 axb5 h5 e4 h4 exd5 h3 gxh3 e4 h4 Bd6 h5 Be5 fxe5 Qb6 Ba3 Qd6 Bc1 Qd8 Ke2 Ke7 Ke3 a5 Kd4 g5 c4 g4 h4 a4 e6 Kf6 h6 e3 h7 a3 c6 g3 Kc5 Ke5 b6 e2 h5 e1N e7 a2 e8R+ Ne7 Na3 g2 Bb2+ Ke4 Nb5 Nf3 Qa4 Bf5 Nh3 g1R Be2 Rg4 Rhf1 Qc7 Be5 Ng1 Bd1 Kd3 Qb4 Rhg8 h8Q Rh4 Qh7 Rgg4 Qg6 Ra3 Qd6 Rb3 Qg6 Rb2 d6 Nd5 d7 Nc3 d8N Be4 Bf6 Qh2 Be5 Nd7+ Kd6 Nc5 Nc7 Nb3 c5 Nd4 Nde6 Bf5 Na6 Be4 Bf3 Kc2 Nf2 Bd3 Ke7 Bf5 Rae1 a1N Bd1+ Kb1 Re2 Nab3 Ra8 Ka1 Ra7 Bc2 Qd3 Ndb5 Qg3 Rc4 Qg5 Rhg4 Qf4 N5d4 Qb5 Ra4 Qd3 Rc4 Qdg3
2q1Q2Q/KnP2b2/1nPNP1P1/2qBP2n/5Npk/2B1Q1R1/4N3/Rb2r2n b - - 0 1 legal: proof: d4 b5 g4 e5 f4 c5 fxe5 a5 dxc5 f5 a4 g5 axb5 f4 h3 Bh6 h4 Ra6 Nf3 Rf6 Ng1 Rf5 gxf5 g4 Ra4 Ne7 Ra1 Bg5 hxg5 Ng8 Kf2 Ke7 e4 h5 c4 d5 b4 h4 b6 h3 f6+ Kf7 g6+ Ke6 b7 h2 f7 a4 f8N+ Ke7 e6 Kf6 b5 Kg5 b6 a3 c6 d4 c7 a2 Bd2 d3 Qb3 Qd5 Nc3 Nf6 Bg2 Nbd7 b8Q Nh5 b7 Nb6 Nb5 Kh4 Bc3 d2 Ne2 d1B Nd6 f3 Ke3 f2 Rg1 h1N Bf3 f1Q Rg3 Qf5 Kd4 Bc2 Qa3 Bd7 Qe8 Bb1 Qc1 Rg8 Qe3 Qg1 Bg2 Bc6 Bf3 Bd5 Kc5 Qc1 Kb5 Rg7 Ka6 Re7 Ka7 Qc2 Nd7 Qc1 Ne5 Qc2 Qh8 Qf8 Nd3 Qc8 Bg7 Qc3 Ndf4 Qd4 Bg2 Qc5 Bb2 Bc6 Bg7 Be8 Bc3 Bf7 Bf3 Rd7 b8Q Rd8 Nb7 Rd1 e5 Re1 Bd5 Bc2 Rd1 a1N Nd6 Nb3 Ra1 Na5 Qa8 Be4 Qc6 Bb1 Qce8 Qa3 c5 Nb7+ Ba5 Qb4 c6 Qc5 Bc3
k2N4/1nn3n1/4prBr/2Q2nBn/RB2P3/N1Q2Q2/1PP2PP1/R1rb1K2 b - - 0 1 illegal: Other
5rBR/1pK1b3/3P2qR/n1PrPn2/3PN3/bN2rQ2/1Bp1PN2/Bk5Q b - - 0 1 legal: proof: g4 a5 f4 e5 fxe5 c5 c4 d5 cxd5 h5 gxh5 c4 Qa4+ Bd7 b3 c3 Qxa5 Bb5 Qa7 Bc4 bxc4 Qd6 Bh3 Qf6 Bf1 Qd8 Kf2 Kd7 Ke3 f5 Kd4 g5 h4 f4 a4 c2 a5 f3 h6 f2 h5 g4 d6 Kc6 h7 g3 a6 g2 h6 Be7 Nc3 Bf6 Ne4 Bg7 Nh3 g1B Bg2 f1R+ Nhf2 Qf8 Bb2 Kd7 Kc5 Ke6 Kb6 Kf5 d4 Ne7 Kc7 Rg8 h8Q Rd1 h7 Kf4 Rh6 Ke3 Ra4 Nd7 Ba1 Qe8 Qb8 Rd3 a7 Qh5 Qf8 Bf6 Qf7 Raf8 a8N Nf5 Nb6 Nb8 Ra8 Nc6 Na4 Be7 Nac5 Na5 Nb3 Qg6 Qd5 Rc3 Qf6 Bh2 h8B Bf4 Bg7 Rh8 Qh4 Bfg5 Qh1 Rc8+ Kd7 Rhf8 Bf6 Bf4 Bg5 Rc5 Qc6 Rd5 Kc7 Rf7 Rg8 Rf8 Bh3 Ng3 Be6 Nf5 Rgh8 Rd3 Bg8 Rc3 Nc1 Rb3 Nf6 Kd2 Qf3 Re3 Qh1 Rb5 Qcf3 Rd5 c5 Bg3 Nh3 Be1 Nb3+ Kd1 Ng1 Bb4 Ne4 Ba3 Bf4 Rc3 Bd2 Rd3 Bdc3 Re3 Nh3+ Qg1 Nbd2 Kc1 Nb3+ Kb1 Nhf2 Rf6 Qhh3 Rf8 Bcb2 Qg6 Qhh1+
n5N1/RP1BbkQ1/3R1b1K/5PR1/q2p1nNQ/r4P1P/2p1Pn2/q1B2N2 b - - 0 1 illegal: No proof kernel
N3N2r/2p4P/QB1r2b1/B1Q1P3/rPK4R/b2P1B1q/3kPpR1/r3R2n b - - 0 1 legal: proof: f4 e5 fxe5 d5 c4 b5 cxd5 b4 a3 Bg4 axb4 Bc8 g4 a5 b3 h5 gxh5 a4 Na3 Na6 Nb1 a3 Nf3 Nc5 Ng1 Na4 bxa4 Kd7 Nh3 Ke7 Ng1 Ke8 h4 Kd7 h6 g5 h5 f5 d3 f4 Kd2 f3 Kc3 f2 h7 g4 d6 Kc6 h6 Kd5 a5 a2 a6 g3 d7 g2 a7 Qh4 d8B Be6 Nf3 g1R Be3 Bg4 Bb6 Bc5 Qc2 Rb8 a8Q+ Rb7 Nbd2 Bd7 Qa6 Be7 Nd4 Rg6 Nc4 Bc6 Nb5 Qg3 Rh4 Bg5 Nbd6 Be8 Ba5 Nf6 Re1 a1R Be7 Qh3 Bg2+ Ne4+ Kb3 Kd4 Nb6 Ke3 Kc4 Re6 Bf3 Bg6 Ne8 Ra7 Na8 Ng3 Rg4 Nh1 Rg2 Rd6 Qc3 Rg8 h8R Rf8 Qd4+ Kd2 Qc5 Be3 Rh7 Rh8 Bg5 Kc2 Bf4 Bc1 Be3 Bb2 Rd7 Ra4 h7 Ba3 Bd4 Kd2 Rf7 Rb7 Rf4 Rb8 Rh4 Rb5 Qcc6 Rbd5 Bdb6 Rc5+ Kb3 Rc1 Qc5 Ra1 Kc4
3N3K/P1Q1B3/bP2QPq1/1r3P1R/1RQ2n2/2n2Pp1/1pnN4/1kBb1n1B b - - 0 1 illegal: No proof kernel
r1B1KN2/Qp1R1rN1/2k2r2/1r1p1r2/PRPQ1B2/N2P3P/4bPB1/1b2b3 b - - 0 1 illegal: No proof kernel
1q2B3/Pq3Q1n/P3PpkN/NP4Bp/4R1bR/np1KP3/1rB1Q3/b1Q5 b - - 0 1 illegal: No possible last move, all moves rejected
1k4Rb/1Pr4Q/2b1BR1B/K1NPrpRP/2p2QP1/NN4p1/5rP1/3nn3 b - - 0 1 legal: proof: d4 b5 c4 h5 a4 g5 axb5 e5 dxe5 d5 cxd5 h4 f3 g4 Qc2 g3 Qh7 h3 Nxh3 Qg5 Ng1 Qg4 fxg4 Bf5 Kd1 Bd7 Ke1 Bc8 Kd2 Kd7 Kc3 a5 e4 c5 b4 Kc7 h4 c4 e6 a4 e5 a3 b6+ Kb7 e7 a2 e8Q Bc5 e6 Bf2 b5 Be3 Kb4 Ra3 e7 f6 Qef7 Be6 e8R+ Nd7 Ne2 Bh6 Nd4 Ra7 Nb3 Bg7 Bh6 Ne7 Na3 Ne5 Bd3 Bd7 Bf5 Rf8 Be6 Bc6 Raf1 a1R h5 Re1 Rf5 Bh8 Rhf1 Nf3 Rg5 Re5 Rc8 Ra8 Rd8 Rb8 Ka5 Rc8 Rf2 Kb8 b7 Ne1 Rff5 Ka7 b8N Rc7 b6+ Ka8 Rf1 Nf5 b7+ Ka7 Rf3 Ne3 Nd7 Nd1 Rf1 Re2 Ndc5 Re5 Qfg6 Rff7 Rg8 Rf8 Qe4 Kb8 Rf2 f5 Qf4 Re8 Rb2 Re2 Na1 Rf2 Rb6 Rc2 Nab3 Rf2 Bc8 Re5 Ra6 Ba4 Rf6 Bc6 Be6+
RBNN3B/1p4RK/b3p3/1Q2p3/N3rP2/P1bP1r2/P1Bb3P/k1Qn1r2 b - - 0 1 illegal: Other
3R2R1/4P1N1/qr1PnNQP/2brPrQ1/6K1/3Qp3/p1P2kp1/1R1B1rB1 b - - 0 1 illegal: No proof kernel
1N1B3n/3Pr1PK/n1nQ2R1/p1B1P2P/1R1P1Qb1/2Qpp1kB/3Nn3/q7 b - - 0 1 illegal: No proof kernel
b1N2B1n/p5R1/2R2p1b/P1Q1PNp1/b2PB2Q/KN4B1/3PPb2/2n1k2q b - - 0 1 legal: proof: g4 c5 b4 d6 g5 f6 g6 c4 Ba3 Qc7 Bc1 Qc5 bxc5 Na6 f4 e5 fxe5 b5 c3 d5 Qa4 d4 cxd4 Bf5 Qc2 Kd7 Qd1 Re8 Qc2 Re7 Qd1 Rf7 gxf7 Bd3 Qc2 Be4 Qd1 Bf5 h4 g6 h5 Ke6 Ba3 Bc2 Bb4 Ba4 Ba5 Kd7 Bc7 Be7 Bd6 Bd8 Bf8 Bc2 Bh6 Bf5 Bg5 Be7 Nc3 Bf8 Nb1 Bh6 Bh4 Be3 Bg3 g5 Qa4 h6 Kd1 Bf2 Kc1 Rh7 Qb3 Rg7 Qd1 Rg6 hxg6 h5 Kb2 Ke6 f8B b4 a4 h4 a5 h3 c6 h2 g7 b3 c7 c3+ Ka3 b2 c8N c2 Bd6 c1B Qa4 Bc2 Nf3 Kf5 Nc3 Kg4 Bf8 Nb4 Bg2 Na2 Qc6 Ne7 g8Q Ng6 Qh7 Nh8 Nh4 Ba4 Be4 Kh3 Re1 h1B Qc5 Bf3 Nf5+ Kg2 Bd3 Be4 Rh1 Ba8 Rh6 Kf1 Be4 Ke1 Rg6 Bb7 Qh4 Ba8 Nd1 b1Q+ Nb2 Qc2 Rg7 Qb1 Bb7 Qe4 Rb1 Qh1 Be4 Be8 Kb3 Bb5 Na4 Be8 Rb2 Bb5 Rc2 Ba3 Qc7 Be7 Nc5 Nc1+ Ka3 Ba4 Qc6 Bd8 Nb3 Bb6 Bb4 Bc5 Qd5 Bf8 Rc6 Qg2 Qc5 Qh1 Rg8 Bh6 Rg7 Qh3 Qb6 Qh2 Bf8 Qh1 Qc5
2B5/1P6/Nnp1R1P1/7k/1pp1P2P/1NB1b1Kn/B1bNp2P/Qr1R1qQ1 b - - 0 1 illegal: Other
Qbr5/B3N1r1/P2P1K2/1PP2N2/3nqkqn/q2n4/2P2NRB/rB2QbR1 b - - 0 1 illegal: No proof kernel
8/1P1K1n2/4NBn1/2P3PB/3RRr1r/kNQq1r1q/5PbP/nQbb1R1Q b - - 0 1 illegal: No proof kernel
2Q4R/3n1PB1/P1b4b/2rrNk2/2RrQ1RK/qP1r1B2/nN1B2PP/1n2r3 b - - 0 1 illegal: No proof kernel
br1Q4/NRK4Q/q5Rr/n1P1BkbP/1n6/2Rr3B/PPn1BqP1/r4N2 b - - 0 1 illegal: No possible last move
Nb5b/nKn5/3BB1b1/PPR2qQ1/NR1rP1R1/1NqP4/r4P2/r3Qkb1 b - - 0 1 illegal: No proof kernel
nBrBq1rb/3R1N2/2P1P2R/3K2P1/P1nPB1k1/4QNrr/Nq2bQ2/1b6 b - - 0 1 illegal: No proof kernel
3bBN2/K1B3n1/PQPrRP1N/b2P3n/P4R2/1bn1Bb1r/6q1/kQ2q1N1 b - - 0 1 illegal: No proof kernel
2b1n1NQ/nr3rP1/2BnNr1q/1P2R1Q1/1bP3R1/BNnPKP2/4Q1q1/5k2 b - - 0 1 illegal: No proof kernel
3Q3N/4P1Q1/1PbrR3/3NP2r/2B1qR1n/B3qP2/Q3k1rP/KBnrb1q1 b - - 0 1 illegal: No possible last move
b7/R2PQ3/4K1Pr/q1BNBN1P/kb1PN3/1B4Rb/1bn2P2/nQr3nq b - - 0 1 illegal: No proof kernel
1N2nQR1/nP1R2Qq/K1PNP2B/3r2n1/bb1P2rR/q2Q2P1/2knBq2/8 b - - 0 1 illegal: No proof kernel
3R4/PB2PRB1/Pn1RrPnK/P2n2B1/b1q3r1/1Qnk1r2/3N1b2/N1Q1q3 b - - 0 1 illegal: No proof kernel
1r4rR/4b1NQ/BrbP1P1B/kPPR2Q1/r2N1b2/NPn2BnK/3q1b2/8 b - - 0 1 illegal: No proof kernel
1rbn1NK1/1P2B1pn/7R/kq2Qb2/7B/Qr1rbBPP/Pn5P/2N2RN1 b - - 0 1 illegal: No proof kernel
q2nB3/1rq1Rnb1/7n/3PrNq1/2b1PBR1/Q2NP1p1/R3P1PQ/K2kB3 b - - 0 1 illegal: Other
nR4N1/b3Kn2/q1p1nRR1/1rPQ3N/PPb5/PBBq3P/2kB4/1r1q1Q2 b - - 0 1 illegal: No proof kernel
1Rn1Q1b1/rq1rb3/2pP3b/P1kN2P1/1q3PKN/8/1Qq1N1RP/n1BB2R1 b - - 0 1 illegal: No proof kernel
R2r4/1B1N1rN1/1Pn3N1/BQ2nPqq/KPRP4/5Q1q/4pPBk/1b2b2r b - - 0 1 legal: proof: e4 b5 h4 d5 a4 g5 axb5 f5 exf5 d4 hxg5 d3 cxd3 Nf6 d4 Ng8 d5 Qd6 Ra5 Qd7 Ra1 Qd8 d4 Kf7 Kd2 c5 Kc3 h5 Kb3 e5 g4 a5 g6+ Kf6 d6 e4 d7 e3 b6 Kg5 g7 a4+ Ka3 c4+ Ka2 c3 b3 c2 Bg2 a3 Qf3 h4 Nd2 e2 Rh3 Qe8 d8N Ne7 g8B Nd7 Bd5 Ra7 Bb7 Nc6 Nc4+ Qe3 Bd2 c1Q Ne5 Bb4 Rg3 h3 Ne6+ Kh4 g5 h2 g6 h1Q g7 Rd8 g8Q Qcc3 Qg6 Qg5 Ng7 Qh3 Qe8 Qhg4 Ba6 Q4h5 Nh3 Bb7 Nf4 Ba8 Bb7 Qd3 Be3 Be1 Bd2 Qe3 Ba5 Qd3 Ng4 Nde5 Nf6 Qc3 Nd7 Qe3 Kb1 a2+ Kb2 Qd3 Rc1 a1R Rc4 Rd1 Ka3 Rb1 Nc5 Rc1 Ka4 Rb1 Ba6 Rf7 b4 Qc3 Bc8 Bb7 Nd7 Ba6 Rc5 Bd3 Bb7 Rd1 Rc4 Bb1 Qd5 Qcf3 Rh3+ Kg4 Rh2 Qfh3 Ng6 Bd2 Qb5 Rh1 Qe6 Be1 Qed5 Qg3 Rh3 Q3h4 Rhc3 Qh3 Rc1 Nb8 Rc8 Nbc6 Ra8 Q3h4 Bf3+ Kh3 Rc4 Kh2 Bg2 Qh3 Qf3
3r4/B4bB1/1pP2qQ1/k2P1nqP/1r1Pnb2/1N1Qq3/bNK4P/RN1R3B b - - 0 1 illegal: No proof kernel
3b1Q1n/b4N1P/3R1rp1/rPB2nP1/1R1rP1PR/q5QB/Nq1Q3K/4nk2 b - - 0 1 illegal: No possible last move
r1b2NN1/P1Qr2q1/B2Q4/QPRKn1N1/kP2P1n1/4PR2/1nqBp1b1/6b1 b - - 0 1 illegal: No proof kernel
R5k1/P5N1/1b1q2Pq/rP1P1N1P/2RB1b2/nBq3rb/R2Qp1n1/N5QK b - - 0 1 illegal: No proof kernel
qb1B1r2/PQ1q4/3PPbpP/qRKN4/7r/1BnbnN2/1P3BR1/2QN1k2 b - - 0 1 illegal: No proof kernel
rB1n1Q2/k1pRb2P/P4bn1/1bRBP3/2PP1NR1/b3KQ1b/2r5/1N4Bq b - - 0 1 illegal: No possible last move, all moves rejected
3R2Qn/1N1N2r1/k1P4P/qB2BrQN/2bP2RK/b2prb1n/2r1P1QP/8 b - - 0 1 illegal: No proof kernel
1BN2nQK/1b3RrP/2kn2N1/2B3b1/R1n1P1n1/PP3RQ1/qp1rP1B1/2r5 b - - 0 1 illegal: No proof kernel
1b1q4/4rp1R/B1RrPn1R/1P4Br/b1Qr3n/kQN1K3/P3BPP1/n4N2 b - - 0 1 legal: proof: d4 a5 h4 b5 b4 g5 hxg5 e5 bxa5 b4 dxe5 b3 cxb3 Ne7 b4 Ng8 b5 Bg7 Be3 Bh6 Bc1 Bf8 Kd2 Ke7 e4 c5 e6 Kd6 g6 h5 a6 c4 e7 Kc5 e8B Kb4 e5 d5 a7 d4 g7 h4 Bb2 d3 Bc1 c3+ Ke3 d2 Qe2 d1R Qe1 h3 Kf3 h2 Bg5 Bf5 e6 Bc2 Nd2 Ka3 Bd7 Rh4 Ke3 Rd4 Rb1 Bd6 Qe2 Ne7 g8Q Ba4 Rc1 c2 Bc8 Nd7 Qc4 Bb8 Be2 Ng6 Ba6 Nh4 Nf1 Nf6 Qh7 Rd6 Qh5 R1d4 Qf3 Bc7 Qg3 Rb8 a8R Rb7 Rc8 Bb8 Rc6 Re7 Re1 c1N Rd1 Rg4 Rd5 Nb3 Rf5 Ng8 Rf6 Na1 Rh6 Rgd4 Bg4 Ra7 Ne2 Nf6 Nc3 Rb7 Be2 Re7 Rg1 h1R Rh7 Rh2 Rh1 Ng6 Qf3 Rh5 Rh2 Nh4 Qfd5 Rf4 Qdd3 Rfd4 Qd1 Kb2 Qdb3+ Kc1 Rc7 Rh6 Bh5 Ng6 Qd1+ Kb2 Rc6 Ka3 Be2 Rhh4 Rh3 Rh6 Rf3 Rh2 Rfh3 Rh1 R3h6 Rh5 Qc2 Nh4 Q2b3+
2N5/bP4q1/3PRN2/bPpn1Qnr/3RPb2/B2BQb1R/1BnP1K2/2r4k b - - 0 1 legal: proof: f4 b5 g4 h5 gxh5 e5 fxe5 d5 a4 d4 axb5 d3 cxd3 Be6 d4 Bh3 d5 Bc8 e4 Ke7 b4 a5 h4 g5 d6+ Ke6 b6 f5 b7 g4 b5 a4 h6 a3 h7 a2 h5 g3 h6 f4 Qh5 g2 Rh4 f3 Ba3 f2+ Ke2 Ne7 Qf3 Nd7 Bb2 Nf6 Qe3 Qd7 Rh3 Ned5 Nf3 g1B Nh2 Qg7 Nc3 c6 Rb1 a1B Ng4 Ra4 Bc1 Rc4 Na4 Bc3 Ba3 Ba5 Nb6 Rc1 Rg3 Bd7 Rb4 Be7 Bh3 f1N Rd4 Be8 Nc8 Bh5 Kf3 Bed8 Ke2 c5 Kf3 Bh2 Kf2 Bdb6 Bg2 Ba7 Bh3 Re8 h8Q Nh7 Qf8 Ng5 h7 Rd8 Qff4 Rh8 Nf6+ Bg4 Bg2 Bh5 Bf3 Bg4 Be2 Bf3 Qc3 Nfe3 Bd3 Nc2 Qg4+ Kf7 e6+ Kg6 e7 Kh6 e8R Kg6 Rg2 Bf4 Rg3 Kh6 Qe6 Kg6 Qf5+ Kh6 Ng8+ Kh5 Re6 Kh4 Qb3 Bh1 Nf6 Bf3 Rg4+ Kh3 Rg3+ Kh2 Qc3 Rg8 h8B Kh1 Bc4 Qe7 Qe3 Rg7 Be2 Rh7 Bd3 Rh5 Ra4 Nf7 Ne8 Bg2 Bhb2 Ng5 Nf6 Qg7 Rd4 Bf3 Rh3+
Q1K2b2/pr1N3R/1R3PBB/1n2Pn1B/2bkq2P/rQ5Q/n1P2P2/b3bN2 b - - 0 1 illegal: No proof kernel
1qn1Q1qR/B5P1/P1r3P1/2B1P3/Rb1kN2K/2bBbPNQ/1pbQ4/2r3n1 b - - 0 1 illegal: No possible last move, all moves rejected
Q6r/n1Pb2nn/P1qr4/PQbnB3/p6q/QR2PP2/2KRN1RN/5k1B b - - 0 1 illegal: No proof kernel
b3BR2/2pP4/1N2K3/n1rnPP2/1QPB2Rk/3nBrR1/Qr3P1q/N2q3q b - - 0 1 illegal: No proof kernel
Nq3n2/np1R1nPQ/Q1B1P3/2B1bP2/3n3K/bPB3NP/2bRnN2/2k1r3 b - - 0 1 illegal: No proof kernel
8/PRB1QR2/PqrPKQqq/bN1p1R2/1P1P4/nN1B1q2/4k3/r1Q1nq2 b - - 0 1 illegal: No proof kernel
1q4N1/2k3n1/1b1q1QP1/1Prpq1q1/2BP4/K2RrQnB/1P3P2/1RB2QnN b - - 0 1 legal: proof: e4 f5 exf5 g5 c4 b5 cxb5 g4 a4 g3 b6 Ba6 hxg3 Bb7 g4 Bc6 g5 Bb5 axb5 Bh6 Rh5 Bg7 Rh1 Bf8 d4 a5 Kd2 c5 Kc3 e5 Kb3 d5 g4 Kd7 g6 h5 b7 h4 f6 h3 f7 e4 g5 c4+ Ka4 h2 g7 c3 g6 c2 Bg5 c1Q Bh3+ Kc7 Be6 e3 Ra2 e2 Ra1 e1Q Bc8 Ne7 g8B Qd6 Bf5 Rh3 Ne2 Re3 Ra3 Nbc6 Nbc3 Rc8 Ne4 Ne5 Rd3 Nf3 N2g3 Ng1 Nf6 Qcd2 Bh3 Nf5 Bf1 Ng7 Qf3 Be7 f8Q Bd8 Be6 Qee2 Kb3 a4+ Ka2 a3 Ng8 Qee1 Beh3 Qdc1 Kb3 a2 Q8f6 a1Q Bf4 Qa8 Qe2 Kb6 b8Q+ Qb7 Qa7+ Kc7 Qa1 Qb8 Qf3 Qe2 Qg2 Qh5 Qf3 Qg5 Ka4 Qc6 Be2 Qde5 Qf1 Qcd6 Kb3 Kb6 Ka4 Rc5 Kb3 Kc7 Ka3 Re4 Bc1 Re3 Rb3 Kb7 Bc4 Bb6 Rd3 Kc7 Q1g2 Ne2 Rd1 h1N Qf1 Ng1 Nf5 Ng3 Re1 N3e2 Ng3 Ne6 Nh1 Ng3 Bd2 Ng7 Rb1 Qgf5 Bc1 Qh5 Bc8 Qhg5 Bh3
1nq2bK1/n2npQPR/b2PkBnP/3RP1R1/1N3b2/3B1Q1q/2rN3P/3Q4 b - - 0 1 legal: proof: f4 d5 c4 h5 cxd5 g5 g4 a5 gxh5 b5 a4 g4 axb5 Ra6 Nf3 Rg6 Ng1 Rg5 fxg5 Qd6 Bh3 Qd7 Bf1 Qd8 Kf2 Kd7 Ke3 c5 Ke4 f5+ Ke5 a4 e4 g3 b4 a3 d4 c4 g6 a2 h6 g2 b6 c3 d6 f4 d5 f3 b5 c2 b7 f2 b6 Na6 b8R Qc7 b7 Qd8 Bd3 f1Q Bg5 c1N Nh3 g1N Nf4 Qg2 Nd2 Nf6 Qf3 Nb3 Rd1 Ne8 Bf6 Ne2 Rhg1 Qh3 Rg5 Nec7 Ra8 Qe8 b8Q Nbc5 Qb5+ Kd8 d7 Nb8 Qb3 Nb5 Qb1 Kc7 d6+ Kc6 d8Q Ba6 Nd5 Nf4 Qb3 Qed7 Qe8 Rg8 Qa4 a1B+ Qd4 Na7 Nb4+ Kb7 Qh5 Bb2 Qf3 Bc1 Qg1 Qc8 Qgf1 Ne2 Kd5 Kb6 e5 Ncd7 Qg1+ Kb7 Qgg4 Kb6 Ke6 Kc5 Kf7 Rh8 Qgg2 Nf4 Qge2 Rh7+ Kg8 Rf7 Re1 Kd4 Qd1 Kc5 Na2 Kd4 Re4+ Kd5 Rd4+ Ke6 Rd5 Ng2 Nb4 Nh4 Nb3 Bf4 Nd2 Rg7+ Kh8 Bc4 Nb3 Ba6 Rg4 Qc5 Qd8 Nbc6 Rg3 Rg8+ Kh7 Bg7 Rg1 Re8 Nd2 Qc2 Qb8 Rc8 Rg5 Rc7 Qh8 Qc1 Rf8 Rc8 Rf7 Ncb8 Qe8 Bf8 Kg8 Rc4 Rh7 Rc6 g7 Ng6 Qf2 Rc8 Qff3 Qc7 Rd4 Qb7 Rd5 Rc2 Qdf1 Qc7 Q1d1 Qc8 Qf7#
1nN1q1n1/qPNp2k1/B2qP2b/rr1PR1BP/5r2/1rQP4/NRQ4R/2K5 b - - 0 1 legal: proof: f4 e5 fxe5 h5 d4 b5 a4 h4 axb5 h3 gxh3 Ba6 h4 Bb7 h5 Bg2 Na3 Be4 Nb1 Bd3 cxd3 Qe7 Qb3 Qg5 Qd1 Qd8 Kd2 f5 h4 Kf7 e4 c5 b4 a5 h6 g5 b6 c4 h5 f4 b7 f3 e6+ Kf6 e7 g4 e8N+ Kf7 e5 g3 b5 a4 e6+ Ke7 b6 a3 h7 f2 Bg2 f1R Ne2 a2 Nf4 Ra7 Nc7 Kf6 Qc2 Ra3 Nfd5+ Kg7 Nbc3 Qe8 Ne7 Rb3 Rh2 Rf4 Nc8 Rb5 Bc6 g2 d5 g1Q Rb1 a1Q Na2 Qe5 Rb2 Rb3 Bb5 Qd6 Ba6 Qd4 Kd1 c3 Bd2 Qf2 Kc1 Rb5 Rb4 Qe3 Re4 Qf2 Qb3 c2 Re5 Qg1+ Be1 Qd4 Bh4 Q4c5 Bg5 Qg1+ Kd2 c1R Qb1 Rc3 Qc2 Qd4 Kd1 Rcb3 Kc1 Nc6 b8R Qa4 Ra8 Nb8 b7 Be7 Bh4 Bg5 Ra7 Bh6 Bg5 Nf6 Ra8 Rf8 Ra7 Ng8 Ra8 Qa5 Ra7 Ra4 Ra8 Rff4 h8Q+ Kf8 Ra7 Qab6 Ra8 Qa7 Re3 Rf7 Qhc3 Qee7 Nb4 Qac5 Re5 Qe8 Ra7 Rf4 Ra8 Rb6 Bc4 Kg7 Ra5 Raa3 Ba6 Rb5 Ra4 Qa7 Na2 Rb2 Rb4 Raa5 Qc4 Rb3 Qc5 Rc3 Rb2 Rcb3 Q5c3
B3R3/Rbb2r2/6R1/B1nkNPp1/n2PP1P1/n1r1nB1Q/P1n5/Q2N1b1K b - - 0 1 illegal: No possible last move, all moves rejected
1nQQ3r/b4r2/bB1P4/1QNPqn1R/4N2P/1RrP3K/pP2p2R/bB1k4 b - - 0 1 illegal: Other
3rnR2/Nq4P1/2Q1Nbn1/1r2B2K/1PpBP2Q/P1N2r2/R1P2bp1/k4n1B b - - 0 1 illegal: No proof kernel
1BK1bBR1/2pN1b2/rP5k/1B1Q1P1p/1b5r/NP3n2/1R2PPQQ/qn1r4 b - - 0 1 illegal: No proof kernel
1N1R4/B3n1bK/2BN2NP/2P3p1/q1Qqb1pq/1P1PR2P/2r2k1n/2Q2r1B b - - 0 1 illegal: Other
r3RR2/B2R3K/1p1p1PBQ/N2P3P/1qQ2P2/q1QPqN2/r1b5/2nb2kn b - - 0 1 illegal: No proof kernel
n3QN2/rP2b1qN/2Rqn3/kBp5/1p1P1Q2/1Pn5/P2KPBrN/1B2R2b b - - 0 1 illegal: No proof kernel
nKRqB3/RP4BP/4r2n/1P2rkbb/3R1b1P/2pP2q1/1p2Q3/4BNQN b - - 0 1 illegal: No proof kernel
3BN1nK/1pB1bPP1/Q1Pr4/3R1pR1/2PP2b1/kN1r1B2/2Q4n/q1r1Q2q b - - 0 1 illegal: No proof kernel
1rB3k1/PR1P1q1P/N1p1n1P1/4Q2N/1r1n1Q2/1q2B1n1/1QPp1B2/1KRb1b2 b - - 0 1 illegal: No possible last move, all moves rejected
1QB2n1q/PKPN1NP1/1bP5/k1r1Bqp1/8/2r3r1/1pbR2nP/1NQQR3 b - - 0 1 illegal: No proof kernel
b1rn1N1K/Q1BpP2N/P5p1/2RB2Q1/bP1Q1r2/1P1k2P1/2r1rq1n/2R3N1 b - - 0 1 illegal: No proof kernel
1qBN4/1brRK1Bq/1PbQ1NPR/1Q4rQ/5b2/1PPp3p/1k3n1P/2r2R2 b - - 0 1 legal: proof: e4 b5 f4 c5 a4 g5 axb5 d5 fxg5 Nd7 d4 Ndf6 dxc5 d4 Nh3 Rb8 Ng1 Nd5 exd5 Ra8 Ke2 Kd7 Kd3 h5 Kc4 e5 g4 a5 b3 f5 g6 h4 g5 f4 d6 Ke6 b6 a4 c6 a3 Kc5 d3 c7 e4 g7 Ke5 g6 f3 Bh6 a2 Qe2 e3 Nh3 f2 Nd2 Bb7 c8Q Rh7 Nf4 Nf6 g8R Ng4 Qd7 Ra5+ Qb5 Qb8 Bh3 f1B Ne4 Nf2 Bc8 h3 Ne6 Bg2 Nf6 Bgc6 Rhf1 Rc7 Rh8 Be7 Qg4 e2 Bg7 e1R Nd8 Rc1 Rh6 Bf8 Rb1 a1Q Qh5+ Kf4 c3 Ke3 Re1+ Kd2 Re7 Kc2 d7 Qa2 Ra1 Kb2 Kd6 Qa4 Ke6 Qh4 Rf7 Bd6 Re7 Rc2 Rf1 Bf4 Rf7 Rc1 Ke7 Bf3 Qb4 Rg5 Qb5 Rc6 Ne6 Rc4 d8Q Rc7+ Qdd7 Bfc6 Nd8 Ba8 Kf8 Bab7 Qd6 Bd2 Rd7 Bf4 Qf3 Qh5 Ke7 Qh4 Rh8 Qh7 Qh5 Qg8 Rh6 Qh8 Bf8 Qh7+ Bg7
2n1K1N1/NPQ1br2/1NBq2Qq/8/2P5/2pqPpRn/1P1R1Pn1/2Rb1kB1 b - - 0 1 illegal: No proof kernel
3BrB2/1r1q1P1N/k6r/1RKP2qQ/Bn2Q1bp/PRP5/n3Np1P/6nR b - - 0 1 illegal: No proof kernel
6q1/4pq2/3R1P1P/rRqRPp2/1Q1BnBr1/Nr1Q1K1P/2P5/nBb1Nk2 b - - 0 1 illegal: No proof kernel
k2Nn3/2n1q1Bp/1R1r1P2/Q2BnP1q/N4R1P/PrPbBQ2/1rpK4/3N4 b - - 0 1 illegal: No possible last move
3bNB2/K1P2nQ1/P3p1r1/k1rRNRQn/4PnP1/1PN1p1r1/8/qB2Rn2 b - - 0 1 illegal: Other
2rN1B1b/p5P1/1Qr3B1/n1P1nK2/R1NR3Q/B4P2/P1kp1qPr/r4n1R b - - 0 1 legal: proof: c4 f5 b4 g5 e4 c5 exf5 g4 bxc5 g3 d4 b6 d5 Nc6 hxg3 Ba6 g4 Nb8 g5 Bc8 Be2 Bb7 Bf1 Bc6 dxc6 Qc7 Qd5 Qc8 Qd1 Qd8 Ke2 Kf7 Kf3 e5 Kg4 d5 f3 h5+ Kh3 b5 f6 Ke6 f7 e4 g6 Ke5 c7 h4 Kg4 b4 c8R e3 c6 h3 c5 d4 c7 e2 Be3 e1R Nc3 d3 Na4 h2 Rb1 b3 Bf2 d2 Ne2 b2 Nd4 Ne7 Ne6 Nd7 Bd3 Nc6 Nb6 Na5 Qb3 Bg7 f8B Rf1 Rc1 b1R Rc4 Qe8 Rd8 Rc8 Be3 Rh7 Kg5 Bh8 g7 Rh6 Rg4 Ra1 Nc4+ Kd5 Bf2 Rfb1 Qb8 Rb6 Bg6 Rc6 Kf5 Qe7 Re4 Qh4 Bd4 Qf2 Bb2 Rh7 Ba3 Rh3 Rd1 h1N Qb6 Rh2 Rh4 Rb8 c8Q Ng3+ Kg4 Nf1 Kf5 Ra8 Qcc7 Rb8 Qg3 Rbc8 Rg4 R8c7 Qh4 Rc8 Nf4+ Kd4 Ne6+ Kc3 Rb1 Ne5 Rdd4 Rh3 Nd8 Kc2 Re1 Nh2 Rh1 Nf1 Nb2 Rh2 Ra4 Qg3 Rgd4 Qf2 Nc4
5qNk/3b1b2/P1n5/3pbQ2/1B1PPrp1/QPR1P1qB/1B2N1Rb/n3Q2K b - - 0 1 legal: proof: g4 a5 b3 b5 f3 h5 gxh5 e5 b4 e4 bxa5 b4 fxe4 b3 Kf2 b2 Ke1 Ra6 Nf3 Rb6 Ng1 Rb3 cxb3 Qg5 Nc3 Qe7 Nb1 Qd8 Kf2 f5 Kg2 Kf7 h4 g5 a4 Kg7 a6 c5 e3 g4 a7 c4 a8Q f4 a5 c3 Qe1 c2 Ra2 Ne7 Ne2 Na6 Nbc3 b1Q Nd5 Nb4 Ba3 c1B Nf6 Bb2 Ng8 Nc2 Bb4 Nc6 h6+ Kh7 h5 f3+ Kh2 f2 Bh3 f1B Rg1 d5 Rg2 Be6 Kh1 Na1 d3 Bd4 Rc2 Bf7 Rc3 Be5 a6 Bfd6 Qc8 Bh2 Qe6 Bde5 Qf5+ Bg6 Ne7 Rf8 Ng8 Kh8 h7 Kg7 h8B+ Kh7 Qf4 Bf7 h6 Qh4 Qf6 Qg3 Qd6 Qa2 Qc5 Qa4 Qa5 Qb5 Qa3 Qc5 Bg7 Be6 Bh8 Rf4 Bf6 Bf7 Bg7 Kg6 h7 Qe7 h8Q Qf8 Ng1 Be2 Qh4 Bf1 Qg5+ Kh7 Bf6 Qf3 Ne2 Qg3 Bfe7 Kh8 d4 Qf3 Qf5 Qg3 Nc1 Bb5 Ne2 Na5 Rc7 Bd7 Bc3 Bde8 Bb2 Bd7 Rc3 Nc6 Bb4
2kbN3/3Bn2b/1Q3q2/pq1rP2R/1p2R2P/PR2PqB1/NrP1qN2/5QK1 b - - 0 1 legal: proof: d4 h5 e4 c5 b4 e5 bxc5 h4 dxe5 Na6 g3 Nc7 gxh4 Nd5 h5 Ne3 fxe3 Rh6 Qd6 Rh7 Qd1 Rh8 Kf2 a5 h4 b5 c6 g5 c7 f5 a3 d5 h6 Kd7 h7 d4 Nf3 f4 Rg1 d3 Nh2 d2 Bg2 g4 Nc3 f3 Qf1 d1Q Na2 Qf6 Rb1 Be7 Bd2 Rb8 Be1 Bd8 Rb3 Ne7 Bh1 Bb7 e6+ Kc8 e5 Be4 Rg2 g3+ Kg1 Re8 h8R Bh7 Ng4 Qe2 Nf2 Rf8 Rg8 Rb6 Rg5 Rd6 Rh5 Rd5 Rh2 g2 Rh3 b4 Rg3 Rg8 Rg4 Rg5 Nh3 Rf5 Bg3 Rf4 Nf2 Rc4 Rgg5 Rc3 Rg4 Rcd3 Rd4 Rd1 Re4 Rb1 Qd1 Rb2 Qd4 Nc6 e7 Qb5 e8N Ne7 Qb6 Qe2 Kh2 g1Q+ Kh3 Qgd1 Kh2 Qdd3 Kg1 Qb5 Qd6 Kb7 c8Q+ Ka7 Qh3 Kb7 Qg2 Kc8 Qf1 Qf8 Qb6 Qf6 Ng4 f2+ Kg2 Qd1 Qe2 Nf5 Rf4 f1Q+ Kh2 Rc5 Bc6 Qf3 Qf1 Ne7 Kg1 Qde2 Nf2 Rd5 Rc4 Qg6 Re4 Qgf6 Bd7+
1b4r1/2QR1NNp/R5P1/b2kPnn1/PQ1P2pP/R1BB2B1/nrn4K/1b6 b - - 0 1 illegal: No proof kernel
B3bb2/1b1QNB2/RP1Pr2b/3p1PPp/2QNn3/nR2n3/Q2r1k1P/K3B3 b - - 0 1 illegal: No possible last move
4R1n1/p1RB2K1/3b1Q2/r3pP1N/B2QbP1q/k1P2N1P/rR3P1p/4Bn1r b - - 0 1 illegal: No proof kernel
B2R1q1Q/R1P1pp2/1p3b1B/2nnP2b/P3k1qP/N1QB4/1N1P3K/r2N1r2 b - - 0 1 illegal: No proof kernel
4NK2/p5PN/P1Qn1P1R/3pP2p/n1qP1nQN/kr2r1b1/4Q1B1/2BR3r b - - 0 2 legal: proof: e4 f5 b4 g5 h4 c5 bxc5 Nh6 hxg5 Ng8 Bb5 e5 Bf1 b6 f3 Bb7 exf5 e4 Nh3 e3 Ng1 Be4 fxe4 Bg7 Rh3 Bh6 Rh1 Bf8 Ke2 Ke7 Kd3 d5 Kd4 e2 Ke5 e1R d4 h6 g4 b5 a4 b4 c4 b3 a5 b2 f6+ Kd7 a6 Kc6 Ke6 Qd6+ Kf7 Nd7 e5 Nb6 g6 Na4 g5 Qb8 g7 Re2 g6 Re4 Qe2 Qb5 Nh3 Rf4 Bg2 Qa5 Ng5 Rf2 Nd2 b1N Ndf3 Qc3 Nh7 Na3 Bd2 Nb5 Rad1 Rb8 Nh4 Ne7 g8Q Rf3 g7 Ng6 Rh2 Bd6 Qc8+ Bc7 Qg4 Ba5 Rhh1 Nf4 Rh3 Kc7 c6 Kb6 c7 Re3 c8Q Nd6+ Ke7 Bb4 c5+ Ka5 c6 Qc4 c7 Bc3 Qe8 Kb4 c8N Ka3 Qc6 Rb3 Rh2 Nf7 Nd6 Ba5 Ne8 Nd6 Be1 Bd2 Rh1 Bc1 Bc3 Bd2 Ba5 Be1 Bd2 Bg3 Nc7 Rhb8 Ne8 Rb1 Kf8 R8b3 Rhf1 Nh3 Rf5 Nf4 Rg5 h5 Rg6 Rf3 Rh6 Rbe3 Qf2 Rbb3 Qe1 Rf1 Qee2 Rh1 Bc1+
4rR1q/KBP1P3/b3pr2/NQBpn1bP/Pp5Q/1P1r3k/3bR3/4N1QB b - - 0 1 illegal: No proof kernel
6B1/1p1Br1pQ/3N1B1n/1Pr3p1/1bnKQ2P/R1R1PRP1/kPNn4/q1r5 b - - 1 2 illegal: Other
rkR3r1/3Q1Nqn/1K1Qr3/2B1p3/P1qP1R2/b2n1pP1/1p2PPQ1/B1N2B2 b - - 0 2 legal: proof: c4 g5 h4 a5 hxg5 d5 cxd5 a4 b3 a3 Nxa3 Bd7 Nb5 Nh6 Na7 Ba4 bxa4 Ng8 d6 Kd7 g3 f5 a5 c5 a4 b5 g6 h5 g7 e5 a6 h4 Nc8 f4 a7 h3 Bb2 h2 Nh3 b4 Rc1 c4 Ba1 Kc6 d7 Kb7 Nd6+ Kc7 Nf7 Qf6 d8B+ Kb7 Bb6 b3 Bc5 c3 d3 c2 Kd2 b2 Kc3 Qh6 Kb4 Kc7 Ka5 Nf6 g8Q Qg7 Qh7 Nbd7 Qh6 Nh7 Qd6+ Kc8 Kb5 Rg8 Ka6 Rb8 a8Q Be7 Qg2 f3 Nf4 Ra8+ Kb5 Bf8 d4 Be7 Qd3 Kb7 Q3g6 Bf8 Qde6 Kb8 Nd3 Bd6 Ba3 Nc5 Kb6 Be7 Qd7 Bd6 Nb4 Bf8 Na2 Nd3 Bc5 Bd6 Rd1 c1Q Qge6 Qc4 Nc1 Nb4 Rd3 Be7 Re3 Bd6 Re4 Nd3 Rf4 Bf8 Rg1 h1R Qee7 Rh5 Rh1 Rg5 Rh6 Rh5 Rc6 Rh6 Qf6 Be7 Rc7 Rg6 Qfd6 Re6 Rg4 Bg5 Rh4 Bd2 Re4 Bb4 Rf4 Ba3 Rc8#
4q2N/BRqnn2p/1N6/1n5B/b1P1B1pP/3bRpN1/k2rPPPQ/Q3K3 b - - 1 3 illegal: Other
5QR1/1r2NqP1/k2r4/R2Bp2P/NP3P2/3nP1Bp/2pNBb1K/1qQ1q2n b - - 0 1 illegal: No proof kernel
nRbQRK1Q/1N2P2P/B5rB/2p3n1/1P2pb2/PqPn4/1q1pNk2/B6Q b - - 0 1 illegal: No proof kernel
1NQ3k1/1NpP3q/nP5P/B3Pr2/1pr2p1K/3BR2b/1PrRq3/B2RQ2n b - - 0 1 illegal: Other
1Rq1B1r1/2R3pN/3nb3/p3p1NK/Pq1P1PQ1/BQ2n1P1/QPN2k2/b1n5 b - - 0 2 illegal: Other
3bKRnq/B4RN1/3p4/1Ppr1B2/3PBP2/pQP2n1q/3PNnk1/1N3q1Q b - - 0 1 illegal: No possible last move
8/P2p1pN1/kq1BQb2/2nn2Rb/b5qQ/Pp1PBPN1/1R1bKRBP/8 b - - 0 1 illegal: Other
kq1R1r1N/2B4r/1P1B1Q2/p1N3Q1/4p2p/PKbPnBRP/R2Pp1b1/b7 b - - 0 2 illegal: Other
1qB1bQR1/1ppPB3/ppP3N1/1R1P1B1r/1r1R1NP1/kr5P/2n5/5KnQ b - - 0 1 illegal: Other
3r1Bb1/Pr1P4/2R1N1BK/P2PQ1pp/p2r4/1p3Qqk/1P1n2RB/b2N1N2 b - - 0 1 illegal: Other
n2Q4/Pk3P2/2Q1Q3/1KpP3q/2rr1pNp/1PNR1b2/1rpRBb1P/2B2R2 b - - 0 1 illegal: Other
1K1Bkb1N/4P1pB/1pbp2n1/1r6/4QQ1P/R4n1P/PN1P1q1p/1b1RQB2 b - - 0 1 illegal: No proof kernel
1K2k2n/5PQ1/Bp4bq/BP3Rp1/2p2nrQ/P1P1p1q1/BR1b1P1R/3NN3 b - - 1 2 legal: proof: g4 a5 e4 f5 gxf5 d5 exd5 g5 h4 Ra6 h5 Rg6 hxg6 a4 Rh2 a3 Rh1 Bd7 Nxa3 Be6 Nb1 Bc8 Ke2 e5 Kf3 c5 Ke4 h5 b4 h4 d4 b6 f6 h3 d6 h2 Kd5 e4 g7 e3 d7+ Kf7 a3 Nc6 Nf3 Rh6 Nc3 Ba6 Ra2 Bd3 Ne1 Qc7 d8R Qa7 Qh5+ Rg6 Rb2 Qc7 Bd2 Qb7 Nd1 Be2 Qh4 Nce7+ Kd6 Qf3 Kc7 Nh6 d5 Bd3 d6 Qg3 Kb8 Nd5 Rd7+ Ke8 g8B Nf4 Ba2 Be4 Ba6 c4 b5 Nf7 Ba5 Nh8 Rc7 Bd3 Rc5 Rh6 Rd5 Bg6 d7+ Kf7 d8Q Bb4 Qc8 Bd2 Qc7+ Ke8 c3 Rh7 Rf5 Rd7 Bb7 Rd4 Qg7 Re4 Ba6 Rd4 Rg1 h1Q Rg2 Qhh3 Rh2 Re4 Qg4 Qh6 Qh4 Nd3+ Kb7 Rg4 Ka8 Nf4 Ka7 Qh3 Kb8 Qg3 f7+
1KR4N/3BkqpQ/1RpN1P2/2n2QP1/N1PPRqr1/pr2B1P1/3p2b1/5n2 b - - 1 2 illegal: No possible last move, all moves rejected
br3k2/Rpp2p1P/3PNB2/BP6/2r2PPn/1R1K2np/BQRN1Qr1/4b3 b - - 1 2 illegal: Other
2r2kR1/n1pr1N2/4Ppbp/2p4R/1P1PBPp1/2Q2QPq/2Q1K2B/2N1nN2 b - - 0 2 illegal: Other
3r4/p2QqkbP/1pKB1pP1/PPN1b2n/1N1BBpQ1/3R1rN1/P3p3/7R b - - 0 2 illegal: Other
1n1qr2N/1pNP2b1/2rBR1N1/1P6/P1P1R1pn/1Q1K2pQ/k1PRp1p1/5B2 b - - 0 1 illegal: Other
N3n1Bk/qpb1Q3/P2p2p1/r1p4p/2P1P2R/1PBPn2Q/3qNQR1/1K4B1 b - - 2 3 legal: proof: f4 e5 fxe5 Nh6 Nc3 Ng8 Nb5 Bd6 Nf3 Bc5 Ng1 Bf8 Nxa7 f5 g4 f4 Bh3 d6 Bf1 Bf5 gxf5 c6 h4 g6 h5 Na6 h6 Rc8 Nh3 Rc7 Ng1 Rg7 hxg7 Qg5 Rh6 Qe7 Rh1 Qd8 a4 Kf7 e4 h5 a5 c5 f6 f3 e6+ Ke8 f7+ Ke7 b3 Kf6 e7 Qc7 e8Q Qd8 Ne2 Nb8 a6 Rh6 Rh4 Nd7 Nc8 Qb6 Ra2 Ne7 g8Q Bg7 f8B Qa7 Nb6 Nf5 Na8 Rh8 c4 Rh7 d3 f2+ Kd2 Ne3 Bh3 f1Q Be6 Qg2 Qe1 Bh8 Qg3 Rf7 Qh3 Bg7 Rc2 Bh6 Kc3 Bg5 Kb2 Qf2 Bh6 Qe1 Kb1 Qd2 Rg4 Bh4 Qgf8 Be1 Bf4 Bh4 Qfe7+ Kg7 Bb2+ Nf6 Q8f8+ Kh7 Bfe5 Ne8 Bbd4 Be1 Bg7 Rf2 Qf4 Rh2 Rg2 Bh4 Qf2 Bg5 Bc3 Bf6 Bh6+ Kh8 Rg4 Rg2 Rh4 Rh2 Bg8 Rh1+ Kb2 Ra1 Bf4 Ra5 Kb1 Ra4 Bh2 Ra5 Bb4 Bc3 Bg1 Bf6 Qed7 Bd8 Qe7 Bb6 Bc3+ Nf6 Nd4 Ne8 Qe1 Qh2 Rb2 Bc7 Rc2 Qg3 Rg2 Qf2 Qf1 Qe2 Qf2 Qd2 Ne2+
Q2Q4/1Pp5/1rPbPnKp/1P2pR1B/pB5P/1R2Np2/bkp5/2R1NnQ1 b - - 0 1 illegal: Other
n1Q1N1Nn/PB1rNp2/1r1Q1P1P/7K/n1pb1q1P/2P2R1b/kRQq4/2B2q2 b - - 0 1 illegal: No possible last move, all moves rejected
BBb2qq1/3r3R/2Q3Pk/N1Pn3r/Pp1K2Q1/1Pp4b/RqPbN3/1n1NQ3 b - - 0 1 illegal: No proof kernel
2QK4/1PR4R/b1p2PpN/r1P1rn2/BPnb1Bq1/1b1r2Pk/2QQN3/qR6 b - - 0 1 illegal: No proof kernel
N5n1/N1bR2Q1/r2b1k1B/pnpP4/PRB1K3/QRP4q/1P1N2rP/r2b3r b - - 0 1 illegal: No proof kernel
1n1nB3/1R1rrpb1/pNR2PbP/4RN2/Q1KBQ3/P3q3/1N1kP1P1/1b4rr b - - 0 1 illegal: Other
B1nrN1b1/BpbQRNb1/4p3/P5K1/1P1P1Q2/P1kq2n1/r1r1PR2/1R3Q1b b - - 0 1 illegal: Other
Qnk1KN2/B1b3r1/pn1pP1Pb/1NN2Qq1/R2b2P1/P2BR3/3P4/1b3nRr b - - 0 1 illegal: No proof kernel
2bkRB1R/5n2/1NpbB3/2P2R1r/QpQP1q2/qP1rNN2/2PbP1K1/1b3n2 b - - 0 1 illegal: No proof kernel
N2Q3N/4pkQP/B1b1q1b1/n1K1P1r1/rp1nQ1R1/1PbN1PB1/5bP1/q2R4 b - - 0 1 illegal: No possible last move
2N3K1/2Q2n1N/B3pP2/1R1pPrNP/1B2r2p/2P1bqBP/n2R1b2/1rk3Qb b - - 0 1 illegal: No proof kernel
Rn3KN1/3pp3/PP2QBb1/1rBPr2B/1br1Qn2/q2N1RpP/1b4P1/1N3k2 b - - 0 1 illegal: No proof kernel
R1n1r1Q1/NpQ1NPBP/3b1KN1/pP6/2B1Rn2/2k2p2/4rP1P/qb2b1Rr b - - 0 1 illegal: No proof kernel
1B2B3/5b2/r3k1n1/4n1pP/Rpn2p2/1NqrbP2/PP1QKQP1/NR2bBN1 b - - 0 3 illegal: No proof kernel
Rq6/1rN2BPr/2B1ppK1/1p1Q1n2/1b2PQ2/PPk1NRbb/1n2PBr1/2N5 b - - 0 1 illegal: No proof kernel
8/1PR1pp1r/3QqnRN/P2BPRr1/PN5K/Q2QpP1b/r1bb1B1k/4n3 b - - 0 1 illegal: Other
3n1kq1/p2b1N2/2N1pP1p/Q3P1rP/1b2q3/1NQRn1Q1/K2RBnPP/B5r1 b - - 0 1 illegal: Other
2r3RN/k6B/2Ppq1B1/Rp3R1K/P1N1bPrp/BPbn3P/1Q3r1q/3nQ3 b - - 0 1 illegal: No possible last move
1n4QN/Rb1k4/2R1p2b/1P1BB1B1/pr2P1p1/P1q2r2/KnQP1P2/3rNQq1 b - - 0 1 illegal: No proof kernel
1R6/R3p1Kn/1n3Qp1/BNnB2qN/4P1PP/3brP1k/1bqPp3/rR3BQ1 b - - 0 1 illegal: Other
3n2b1/3K2N1/qPNpQpkQ/1P1q4/2B1p1Pn/2r1P3/Nb3P1r/1r1R1RBB b - - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 axb5 Nc6 h4 Nb8 hxg5 Bb7 Ra4 Ba6 Ra1 Bc8 Kd2 h5 Kd3 a5 Kd4 e5+ Kd5 f6 g4 Kf7 b4 h4 c4 h3 c6 d6 b6 h2 c7 a4 c5 e4 b5 a3 c6 a2 g6+ Kg7 Qd2 Be7 Nc3 Bb7 Ke6 Nd7 c8N Ra3 c7 Qe8 Nf3 Ne5 Na7 Nf7 c8Q Ngh6 Nc6 Nf5 Nfd4 Nh4 Bg2 Qg8 Kd7 Nd8 Rd1 Qd5 Bh1 Bf8 Rb1 a1Q Na2 Re3 Ne6+ Kh6 g7 Kg6 g8B Bh6 Rf1 Rc3 Ng7 Be3 Bb2 Bd4 Rbd1 Rh6 Qf4 Rh5 e3 Rh7 Bg2 h1R Qh2 Rg1 Bh1 Rh8 Nab4 Qa6 Na2 Qe5 Bc4 Qd5 Ke7 Rh7 Qe6 Bc8 Ba1 Bd7 Qf4 Be8 Bb2 Bf7 Kd7 Bg8 Qh2 Ra3 Ba1 Bb2 Qh3 Bc1 Bc3 Bb2 Be5 Rc3 Bh2 Nf5 Rc1 Nh6 Rfe1 Nf5 Qh4 Rf1 Bg1 Rh6 Qh2 Rh7 Qf4 Rh2 Rb1 Nh4 Rec1 Re1 Ra1 Re2 Rf1 Rec2 Rae1 Rc1 Rd1 Rb1 Qh6+
1b1N2BQ/PP1p4/3R3p/K1PP1k1r/2rn1p1n/N1N4P/1q1BBR2/1Qnb3q b - - 0 1 illegal: No proof kernel
1bb3Rr/q1p2pK1/p1Pr1Q2/3N4/1RP5/kP2Q3/PRPNnbBq/2Bn3N b - - 0 1 illegal: No proof kernel
Q6k/rPPN1Pr1/1b2p1B1/4RN2/p1n1b1qp/B3Pb1P/Q1n2QbR/6KR b - - 0 1 illegal: No proof kernel
K2N2R1/1Qp1p1b1/B2p2r1/1n6/qP1QN3/NP1P2Pb/1br1P1bB/1BRn3k b - - 0 1 illegal: No proof kernel
N1K5/Qp1PkQpB/1Pprrn2/3b2Pr/1r2R2N/PB4Br/R1P4q/2n3Q1 b - - 0 1 illegal: No proof kernel
nQ4rN/2pp1b1p/2P2rBP/K2P2RR/3r4/bP1p1kP1/5BN1/1N1B1nQq b - - 2 3 illegal: Other
3r4/Nk1Pn1p1/pbb5/np6/P1bp2Q1/Q1qN2P1/R1RPKPQ1/1r2BB1N b - - 2 3 illegal: Other
2QNKQ2/1p1pB2B/nr5k/RppP4/2nN1q1b/b2QR3/P1PrP1P1/3bN3 b - - 0 1 illegal: Other
Q3R1Q1/qPb2rR1/2K1pn2/5pr1/N2qQnPp/kPNR1B1P/p2BP3/5b2 b - - 0 1 legal: proof: c4 d5 cxd5 g5 a4 b5 axb5 Bg4 f4 Bf5 fxg5 Bc8 Kf2 Kd7 Ke3 Kd6 Kd4 f5 g4 h5 g6 a5 g7 a4 b6 e6 h3 c6 b7 h4 Nf3 a3 Ng5 Rh5 Qc2 Be7 Qe4 Nd7 Nc3 Nc5 Na4 Ra7 Bg2 Nf6 g8Q Nd3 Bf3 Nf4 Rd1 c5+ Kc4 Bd7 d4 Bc6 Bd2 a2 Rac1 Qa5 Rc3 Qb6 Rd3 Bd8 Rb1 Bc7 b3 Ra8 Rc1 Qa7 Rc2 Rf8 Rc1 Kd7 d6 Rf7 Rcc3 Bd5+ Kb5 c4 Rc1 c3 Qa8 Qb8 Kc5 Bc6 d5 c2 Rd1 Ke8 d7+ Ke7 d8R c1Q+ Rc3 Qb2 Rd3 Qa1 Re8+ Kd7 d6 Qa7+ Kc4 Bd5+ Kb4 Kc6 d7 Kd6 Kb5 Q1d4 d8Q+ Nd7 Nh7 Rg5 Qdc8 Nf6 Rc1 Ba5 Rc7 Bb6 Nc3 Ba5 Nf8 Bb6 Rce7 Bd8 Nd7 Bc7 Qe3 Be4 Nb6 Bd5 Nba4 Be4 Bh1 Bg2 Qe4 Bf1 Bf3 Rf8 Rg7 Rf7 Nb2 Qb8 Ka6 Kc5 Nba4+ Kb4 Qd8 Ka3 Kb5 Qba7 Kc6 Nh7 Re7 Nf6 Qg8 Bb6 Re8 Ba5 Nc5 Bc7 N5a4
KbR5/p2Q2B1/6b1/3pQ3/Pqn1P3/1pbP1BpN/1P2P1Rk/NBQ1r1rq b - - 0 1 illegal: No possible last move, all moves rejected
4KbrB/3B1Rpp/1q2BQ1q/1p4PP/1n2prr1/RP4NP/2k1PNn1/2Q2R1b b - - 0 1 illegal: Other
rQ1q3n/1N1ppp1p/b2PQP1k/Brp1R2P/3Q3P/b3PB2/1R4nN/2b2K1N b - - 0 1 illegal: No proof kernel
q1q1qn2/BB1q1pr1/1K4PP/2nB1BQ1/N1R1B1P1/1P1b3P/2R2q2/N1k5 b - - 0 1 illegal: No possible last move, all moves rejected
q4bN1/PB4PR/K1bB1N1B/Pr4QP/b1r1n1n1/3PR3/6k1/1rq1qBB1 b - - 0 1 illegal: No proof kernel
1b2K1Q1/1nP5/PB1r2N1/1Br2PqP/3B1P2/qR2B1q1/2rN2bB/r1k2Rn1 b - - 0 1 illegal: No proof kernel
1nqBKR1Q/3rB3/R6P/2r3q1/2B1pPB1/b1P1P3/2kbP1n1/N1nNB2b b - - 0 1 illegal: No proof kernel
3rk3/1P1Q2BB/2N5/q3rR1b/1b2P1n1/RpqR4/bnRRPPP1/2N1Kb2 b - - 0 1 illegal: Other
KBb2RRR/PN5P/2Rp4/2r4R/Nn1Pn1B1/2P3kn/nQ1P1nrr/4q3 b - - 0 1 illegal: No proof kernel
N1b1R1B1/1kP1QK1p/3P4/rBPpq3/2qP1NrB/PB1n1B2/r3q1R1/2n5 b - - 0 1 illegal: No proof kernel
1B2RNB1/1P2nPr1/1NRq3p/Kp1Pn3/1P3b1N/P1q1nb2/1N1k2qQ/6N1 b - - 0 1 illegal: No proof kernel
8/K6R/Pp2BBn1/4Bn2/2QNB2P/bP1q1Pnb/1kBpr1P1/2q1Nq1R b - - 0 1 illegal: No proof kernel
1K2NBR1/1BpbrPNb/1n4P1/p3R2P/q7/bkP2RPn/4QRRq/6q1 b - - 0 1 illegal: No proof kernel
B2k4/b4PNb/1Q1P1KR1/b1N2b2/1BPnP3/1p1NqpNr/3R1P2/b2r2N1 b - - 0 1 illegal: No proof kernel
r2B2N1/r2QP3/PK1N1r1b/PprkP1R1/1nb2B2/2B4n/RP4Bp/1b5B b - - 0 1 illegal: No possible last move, all moves rejected
2Q3B1/N1N1R1Bp/5b2/2k2P2/1r1rB3/bb1BPP1n/1BPKn1pP/r1rR4 b - - 0 1 legal: proof: d4 b5 g4 c5 a4 e5 dxe5 f5 gxf5 Qb6 b4 Qc6 bxc5 b4 Nh3 Ke7 Ng1 Qb5 axb5 Ke8 c6 Ke7 b6 g5 e6 d5 f3 Kd6 c7 a5 b7 d4 e3 g4 e7 d3 e8B d2+ Ke2 g3 Ra3 g2 Bd7 a4 Be8 b3 Bh5 b2 Nc3 b1R Bb2 Nc6 b8B Nf6 Nh3 Be6 c8B+ Kc5 Be5 Bb3 Nb5 Rc1 Bb7 Nd5 Nf4 Nd4+ Kd3 Ra6 Bf7 Ne2 Bg8 Ra7 Ra2 a3 Bg7 Ra6 Ra1 a2 Na7 Bd6 Rb1 a1B Qe1 d1R+ Qd2 Nc7 Nd5 Ne6 Nc7 Ng5 Be4 Nh3 Rg1 Ra4 Rh1 Re1 Qc3+ Rc4 Kd2 Bf8 Qd3 Rb4 Qd7 Bd6 Qc8 Be7 Ba3 Baf6 Bb2 Bd6 Ra1 Bf8 Ra6 Ra1 Re6 Rec1 Bf7 Bd6 Re7 Rd8 Bfd5 Neg1 Bfd3 Ne2 Rd1 Rd7 Re8 Bde7 B5c4 Rd4 Bg8 Rba4 Bb7 Kb6 Rf1 Ba3 Re7 Kc5 Be4 Rab4 Rd1
2B3Nk/nP2KR2/nnR1N1r1/P1p4P/p1QN4/1NP2Npr/P1b1b3/1rB5 b - - 1 2 illegal: No proof kernel
2Qr1bK1/1P3B2/1nRp2pr/1k2P3/qP1P2bB/rp1B2r1/1B3P1N/R3N1B1 b - - 0 1 illegal: No proof kernel
BN3q2/pPQ3P1/1nR1K1P1/r6P/P1n4N/B1n1BpB1/1bpn2bR/k5B1 b - - 0 1 illegal: No proof kernel
7r/B2kr1n1/rp6/1n2qq2/PQp2BRp/B2B4/1PPnPN1P/NRK3B1 b - - 1 3 illegal: No proof kernel
3NBn2/4k1R1/2ppP2R/r1P2pK1/1q2rP2/r2P1Q1B/n1B1pP2/NBB2r2 b - - 0 3 illegal: No proof kernel
N1r2Nrk/1pR3p1/n2R2PN/4BP1p/p2p3P/NQ3n2/P1NPbK2/1b5B b - - 3 4 legal: proof: f4 e5 fxe5 c5 b4 a5 bxc5 Ra6 c6 Bd6 c7 Ra8 Kf2 Qe7 Ke3 Qh4 Kd3 Bf8 Kc3 Na6 e3 f5 Kd3 f4 Ke2 Qh6 Kf2 f3 Ke1 Qf4 exf4 Bc5 Ba3 Ba7 Bc1 Bb8 cxb8N Kf7 Na3 Ke7 Nb1 Ke8 c4 Kf8 g4 d5 c5 a4 f5 h6 g5 Ne7 c6 Kg8 c7 Bd7 c8N Nc5 e6 Nb3 Bb2 Ng6 e7 Ra5 e8N Ra6 Ncd6 Ne7 Na3 Ra5 Be5 Be6 Nd7 Nc5 Nf7 Nc6 Ne2 Kh7 Qb3 Rg8 Rc1 Na6 Nc7 Rc5 Bg2 Nd4 Na8 Rcc8 Rc7 f2+ Kf1 Nf3 Nd4 Rcf8 Ke2 f1B+ Kf2 Bd3 h3 Bb1 Ndc2 d4 Rg1 h5 h4 Rc8 Nh6 Bf7 Bh1 Kh8 Nf8 Bc4 Rg3 Ne1 g6 Bb5 Rgc3 Nf3 R3c6 Be2 Rd6
2R1Bqbb/2r4b/P4RpN/4pp1Q/5pP1/1R2NrPp/R3P1RP/1K2B2k b - - 1 3 illegal: Other
4Bqn1/q2P1b1B/B2b2Q1/2P2Pr1/R3Bpk1/1Rrp2qp/3P1N1P/1n2BN1K b - - 0 1 illegal: No proof kernel
4bN2/NRBr2bp/nKRP3P/nNQ2p2/Pp1qB3/1P5q/1n3P1N/N2kr3 b - - 2 3 illegal: No proof kernel
3nr1qN/1qp1NpR1/B3BBpB/1rP2PP1/3bP2k/1nP5/B1KR4/3nQ1n1 b - - 0 1 illegal: No proof kernel
3r1Q2/p3b3/2B1Npn1/Kp2BP2/p1b1bP1N/1N1q3R/NPP1R1nP/1Nr4k b - - 0 1 illegal: Other
1N1qq1B1/nb1pQRB1/p1R3B1/np1B3P/P2np1r1/rP6/PK2Pk2/N4B2 b - - 0 1 illegal: No proof kernel
1B3n2/2BQp3/2N1nrbK/Pp1B1pB1/1Rrq1PR1/4PB1p/1PkN3P/1r1q4 b - - 2 4 illegal: No proof kernel
B2R2RK/2n1p1P1/pP3QBB/6NR/3B1P2/4n1P1/N2P1rq1/k2rq3 b - - 0 1 legal: proof: h4 b5 b4 g5 hxg5 d5 c4 f5 cxd5 c5 e4 a6 exf5 c4 g6 c3 a3 c2 a4 Bg7 a5 Bd4 Bxb5+ Bd7 Bf1 Bb6 axb6 Ba4 b5 Bb3 Bb2 c1Q Ba3 Qcc7 Bc1 Qa7 bxa7 Ba4 Rxa4 Kd7 Ra1 Ke8 Ke2 Kd7 Ke3 Kd6 Kf4 Kc5 Kg5 Kb4 f4 h5 d6 h4 f6 h3 b6 h2 f7 Qe8 f8B Qd8 d7 Qc7 Nh3 Rh6 Bd3 Qb7 d8R Nf6 Bb2 Ne8 g3 Nc6 Ra5 Rc8 a8B Rh4 Rf5 Ne5 Bh6 Rc3 Rf8 Qg2 g7 Nc4 Kg6 Nc7 Bc2 Re3 Kh7 Re2 Ng5 Rf2 Bg6 Ne3 Kh8 Rh5 Qe1 Kb3 Rg8 Ka2 Qc1 Rh4 Qc6 Rh3 Qf6 Rh4 Rf1 h1Q Bd4 Qhg1 Re1 Rh1 Nc3+ Kb2 Ra1 Q1f1 Nf7 Qe2 Ra5 Rd1 Rh5 Ka1 Ng5 Qe1 Na2+
B4k2/1PR1Q1pn/KR3P2/BN3B2/1B1P4/5R2/rP2Pbnn/bN2b1q1 b - - 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 c4 d5 cxd5 f5 a4 f4 axb5 h4 Ra6 h3 Rh6 Bf5 gxf5 Bc5 Rxh3 Bd6 Rh7 Bf8 h4 c5 b6 a5 h5 c4 h6 a4 f6 a3 d6 a2 d7+ Kf7 e6+ Kg6 e7 Kf7 e8B+ Ke6 Bg6 a1B Bf5+ Kf7 Qb3 f3 Bg2 Bd6 Qe3 Qe8 d8B c3 d3 c2 Kd2 f2 Kc3 f1N Kc4 Qe6+ Kb5 Kf8 Bd2 c1B Bb4 Nh2 Nf3 Bc5 Nd4 Bd2 Rc1 Ra2 Ba8 Be1 b7 Qb3 Ba5 Nd7 Ka6 Ne7 Nb5 Ng6 Rc3 Qd1 Rb3 Rg8 Rh8 Nh4 h7 Ng2 d4 Bf2 Rc3 Be7 Rc6 Qg1 Rb6 Bd6 Bd2 Bdg3 Bc3 Kf7 Bb4 Re8 Rg8 Bh4 h8R Re7 Rc8 Nf8 Rc7 Nh7 Rhc8 Be1 Re8 Bhf2 Rh8 Nf8 Rh3 Nh7 Rf3 Kf8 Qxe7+
1B1Rb3/Np1Q1B2/1q4b1/1P2BnP1/PNR2n2/RR4b1/4P2P/kr1b1b1K b - - 0 1 illegal: Other
1r4qn/NbR1nPbp/PP1B1BN1/1k2bP1R/7P/1bn3Q1/1BB2K1N/8 b - - 0 1 legal: proof: b4 b5 c4 a5 bxa5 d5 a4 f5 e4 f4 exd5 b4 a6 f3 a5 Qd6 gxf3 Qd7 f4 Qb5 cxb5 Ra7 f5 Rb7 axb7 Be6 Bh3 Bd7 Bf1 Bc8 d4 Kd7 f4 g5 b6 c5 f6 e5 h4 b3 d6 Kc6 a6 b2 f5 c4 d7 c3 d8B e4 f7 c2 Nd2 b1B Ne2 g4 Nf3 g3 Rg1 e3 Nh2 g2 Bb2 c1N Qb3 Nd7 b8B Na2 Nf4 e2 Kf2 Bc2 Bf6 Ne5 Rc1 Ne7 d5+ Kc5 d6 Bb7 d7 N5g6 Qh3 Kb5 d8N Bb3 Nc6 Rg8 Qf3 Nh8 Bd6 Bh6 Rc2 Rb8 Rc4 Nc3 Na7+ Ka5 Rc7 e1B+ Ke3 Bg3 Bd3 Bf8 Bc2 Ka4 Nd3 Bf4+ Kf2 Be5 Nf4 Bh6 Qh3 Ka5 Rd1 Ka4 Rd3 Ka5 Rg3 Bf8 Rg5 Ka4 Nc6 Kb5 Rh5 g1Q+ Kf3 Qg8 Ng6 Bd4 Qg3 Be5 Kf2 Bg7 Na7+
n2KBn2/Q1P1nN2/3RNBN1/1RP2P1r/6k1/r1BpPNPb/r3b2n/8 b - - 0 1 legal: proof: e4 b5 h4 c5 a4 g5 hxg5 f5 axb5 f4 d4 Qc7 dxc5 Qd8 Rh2 e5 Ra4 Qf6 Rb4 Bg7 Ra4 Qf5 exf5 e4 Ra1 e3 Rh1 e2 Kd2 Bd4 Qe1 Bb7 Qd1 Be3+ fxe3 Bc8 Kc3 Kf7 Kd4 e1N Ke5 h5 Kd6 a5 Kc7 d5 b4 a4 c4 a3 b6 h4 b7 d4 g6+ Kf6 g7 Kg5 b5 a2 b6 h3 c6 f3 c5 h2 g3 f2 Bb2 Ra4 Na3 Ne7 g8N Ra7 Bb5 f1R Qa4 d3 Bc3 Rf4 Nc4 Kg4 Rb1 a1N Kd8 Rh5 Nf3 Na6 b8N Bb7 Nd7 Nb3 Nd6 Nd4 Nf8 Nc7 Nf7 Na8 Ne6 Re4 Qa1 Ra2 Ba4 Rf4 Rb5 Ra3 N3g5 Rf2 Nf3 Nd5 Ne7 Rfa2 Ng6 Ne7 Rf1 h1B Rf2 Re2 Rh2 Bg2 Rh3 Rea2 Rh2 Bc8 b7 Bh3 b8B Ba6 Bd6 Bb7 c7 Bc6 Be5 Be4 Nfh4 Bf3 Bf6 Be2 Rh1 Nef3 Rhb1 Ne5 Nf3 Nd7 Rb6 Nf8 Be8 Nd7 Rd6 Nf8 Ne1 Nf3 Rb5 Nh2 Nf3 Ra4 Qc1 Ra5 Qa3 Ra6 Qa5 Ra7 Qb6 R7a3 Qa7
R5QR/1bB5/1p1Pq3/1NrP2n1/3K1nP1/1pBN1kPn/R3r1P1/4Bq1B b - - 0 1 illegal: Other
1r3Q2/P5n1/RBKPPPqr/B1N1R1R1/1P2p3/2kNpr1q/8/b4BBb b - - 0 1 illegal: Other
2k1K1Rb/3N1Pq1/1N6/5P2/2p1B1B1/n3pPr1/b1PPRQNb/N3rbB1 b - - 0 1 legal: proof: g4 d5 h4 g5 hxg5 f5 gxf5 b5 b4 d4 a4 d3 axb5 Nf6 f4 Nbd7 Ra6 Ne5 Rd6 Nf3+ exf3 Ng8 Rxd3 Kf7 Rd7 Ke8 Kf2 c5 Ke3 e5 Ke4 a5 Kd5 h5 Ke6 e4 f6 h4 f5 c4 g6 a4 b6 h3 b7 h2 b8N a3 b5 a2 g7 a1B b6 Bc3 b7 Rh4 Qe1 Ra3 Bb2 Ra2 Qf2 Rh6 Na6 Rh4 b8N Ne7 g8B Rh3 Nc5 Nd5 Ne2 Rg3 Nf4 Bd6 Ng2 Qc7 Rg1 h1B Nb3 Ra1 Bd3 Bb7 Re7+ Kd8 Kf7 Bc6 Nd7 Kc8 Ke8 Ba4 Bf7 Qb7 Bh5 Nc7+ Kf8 Bde5 Bg4 Nb5 Ke8 Na3 Re6 Bcd4 Nc3 Re1 Na1 Bb3 Nd5 Ba2 Bc3 Qb2 f7 Bb8 Bb4 Bh8 Bc5 Qg7 N5b6+ Kb7 Nh4 Bg2 Bd4 Bf1 Rg2 Bf4 Rg6 Qh6 Rg8 Qg7 Rh2 Bb8 Ng2 Bc7 Qe2 Be5 Bg1 e3 Qf2 Rh3 Qh4 Rg3 Be4+ Kc7 Nf4 Bd6 Re2 Be5 Ng2 Bd6 Na8+ Kc8 Qh2 Bb8 Nab6+ Kc7 Nf4 Rh3 Na4 Kc8 Qf2 Bc7 Ng2 Bh2 Bd3 Rg3 Nab6+ Kb7 Be4+ Kc7 Nd5+ Kc8 N5b6+
b3n3/NN1P2P1/2RP1kp1/NrrR1n2/2R1NQp1/K1Br1Pr1/P1B5/7r b - - 0 1 illegal: Other
N2N2q1/RB6/P3P3/NbKn1p1R/k1p3QP/1bbPB2p/4P1B1/rBq5 b - - 0 1 legal: proof: f4 d5 b4 h5 c4 e5 cxd5 a5 bxa5 h4 fxe5 h3 g3 Rh7 Kf2 Rh4 Ke1 Rh8 Qa4+ b5 Qa3 g5 Qa4 g4 Qd1 Rh4 Nc3 Nc6 Nb1 Nce7 Qc2 Nf5 gxh4 g3 Qb3 g2 Qd1 Ng3 hxg3 Ra6 Ba3 Rh6 Bc1 Rh8 Kf2 Kd7 Ke3 c5 a4 f5 d6 Kc6 d3 b4 d7 b3 a6 b2 a5 Kb5 g4 Rh5 a7 Rh6 a8B Rg6 g5 Bd6 Nd2 b1B Qa4+ Ka6 Nc4 Qf6 d8N Qe6 Nb6 Rg7 g6 Qd7 Bb7+ Ka7 Na8 Qe6 Qg4 Bd7 Nf3 Rh7 g7 Ne7 g8B Ba2 Rg1 Bb3 Nd2 Bb5 Nc4 Qg6 Bgd5 Qg8 e6 Be5 a6 Rf7 Rb1 Bc3 Na5 Rg7 Bd2 Bd1 Ba2 c4 Rb2 Bb3 Bb1 Rg6 Nc7 Kb6 Na8+ Kc5 Bc1 Kb4 Bd2 Rg7 Bc1 Be1 Kd4 Nd5 Be3 Ka4 Kc5 Bd2 Rh1 g1Q Bg2 Qc1 Rg1 Ba2 Rb3 Bc3 Rb2 Bd7 Rb6 Bb3 Rc6 Rg6 Rc7 Bb5 Rh7 Rg7 Rh5 Rg6 Qd4 Rg4 Qg7 Rf4 Qg4 Rf1 Bc6 Qg7 Qg3 Bb2 Ba2 Qf6 Bh1 Qh8 Qf3 Qc2 Rg7 Ne7 Qg3 Bc3 Qg4 Nd5 Ra7 Ra1 Bg2 Qc1 Bb7 Qg8 Bb1
3rRB2/2b3b1/5PP1/RrQPNBPn/K1Rp1P2/6q1/B1p2p1p/R2N3k b - - 0 1 illegal: No proof kernel
1Q2b2b/R3RNr1/4BPP1/N1NKPr1B/1rn2P2/1nPb1k2/2r1q1rN/B7 b - - 0 1 illegal: No proof kernel
k3b3/b2rb2B/1r1Pr3/4Q1r1/1P3nPK/RBP2PRR/4NNB1/Bqn4r b - - 0 1 illegal: No proof kernel
3KN3/1N1R1B1B/1R1Pk1Pq/n5B1/5rrn/1bnrP1b1/2P2P1b/2NnN1Q1 b - - 0 1 illegal: No possible last move, all moves rejected
4n3/2Rn1kP1/2qn2N1/1PPB1r2/1rnB2K1/1Q1nPPRR/2R1b1N1/q1b1B3 b - - 0 1 illegal: No proof kernel
2Bn1q2/rN1rN3/Rb2B1Pk/1KQbbR2/PN2P2n/P6P/Nb3q2/2B2n2 b - - 0 1 illegal: No proof kernel
B1R3R1/N3Bb1k/1P1r1Qnb/2r1B1qn/3P4/2PK1PB1/2N1P1rq/4rN1b b - - 0 1 illegal: No proof kernel
1Q1RBr2/5Pq1/4B1b1/2r1nP1R/KB6/Pn1P2NP/n1k1Rb1b/4RNqb b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 d5 g4 d4 gxh5 d3 cxd3 Qd5 d4 Qd6 d5 Qd8 f4 Kd7 f6 Kd6 h6 Kc5 h7 Kd4 h3 c5 a6 g5 a3 b5 d6 e5 a7 c4 d7 e4 f7 b4 Ke2 g4 Qc2 g3 Kd1 c3 Qb3 e3 Kc2 e2 Qe6 e1B Kb3 g2 Be2 c2 Bb5 Nh6 Bc6 Kd3 Bb2 c1N+ Ka4 b3 Be5 b2 Qe8 Ng4 Bg7 Bb7 Ra2 Nb3 Bc3 Qf6 d8R+ Kc2 Bb4 Bf2 Ne2 g1Q Ng3 Na6 Bb5 Rc8 a8B Be4 Bd5 Qg7 Be6 Rc5 Bc6 Bg6 f5 Ne5 d3 Bd6 Bb5 Rf8 h8R Bc7 Nd2 Bb8 Bc3 Nb4 Rh5 Bc7 Ndf1 Bd6 Ra1 b1B Rh2 Ba2 Re1 Ng4 Rh8 Na5 Ne2 Bd5 Rd7 Nb3 Qb8 Bfg3 Rh5 Na2 Bb4 Bh1 Rd8 Bh4 Rg2 Bh2 Be8 Ne5 Rf2 Bg5 Neg3+ Bd2 Rf4 Be3 Re4 Bf2 R4e2+
bNNq4/KR2r1b1/2P2k1P/RBN2b1B/2N3b1/3P1PB1/nrbQP3/2b2n2 b - - 0 1 illegal: No proof kernel
5RrR/1r1P2bq/bn2k3/Q1B3P1/1N3N2/1bP1n1bP/1RrP1r2/1B2NNK1 b - - 0 1 illegal: No proof kernel
RB4rN/2P2n1B/2kRQ2b/2n4N/3P1rPN/1BrrnbP1/Knq1P3/2B5 b - - 0 1 illegal: No possible last move, all moves rejected
qqBbR3/1rN1nk2/Q1q3b1/5P1P/1R2PNp1/1r1PB1R1/2B4P/2Kn2bB b - - 0 1 illegal: No proof kernel
2RnR3/NR3BBr/K1P1b2n/2b1r1P1/8/PN1Prqpk/q1R1QP2/B2b4 b - - 0 1 illegal: No proof kernel
3Br1Rk/N1qn1b2/1rP4K/1R1BbP2/5Qr1/Pp3PRB/BN4qP/4b1n1 b - - 0 1 legal: proof: e4 a5 b4 f5 exf5 h5 bxa5 c5 g4 c4 gxh5 c3 dxc3 Nh6 c4 Ng8 c5 Qb6 Bb5 Qc7 Bf1 Qd8 Kd2 Kf7 Ke3 d5 Kf4 b5 Kg5 d4 c4 b4 f3 d3 c6 d2 h6 Be6 h7 Nf6 c7 Rg8 c8B Nbd7 h8R Nd5 a3 Qc7 c5 Nf4 a6 Ne2 Qa4 d1R a7 Rd6 Nd2 Rb6 Rb1 g6 Bb7 Kg7 Bd5 Re8 a8B Bf7 Bh3 e5 Nc4 e4 Nb2 e3 Ba2 Bd6 B8d5 Bg3 c6 Be5 Kh4 g5+ Kg4 Be6 Kh5 g4 Bd2 g3 Be1 g2 Bh4 Nd4 Ne2 g1Q Bd8 Qg2 Nc3 e2 Nb5 e1B Na7 Ne2 Rf1 Ng1 Rf2 Rgf8 Rg8+ Kh7 Rg3 Kh8 Kh6 Rg8 Rc2 Rg4 Rc5 b3 Rb5 Qb8 Qf4 Qc7 Rc1 Bf7 Rc4 Bf6 Re4 Bfc3 Re6 Bd4 Rg6 Be5 Rg8+
NKb2q1r/4RPkq/pB1P1R2/1N5R/Qrn2P2/2b1R2P/4b1P1/N2Br2n b - - 0 1 illegal: No proof kernel
R2qNn2/1q1p2r1/1N2N3/B1r1PKR1/q1P4k/bb4P1/B1PP2nb/2Q2N1R b - - 0 1 illegal: No possible last move, all moves rejected
1qnB2bQ/2RpP2B/R1bk2P1/1r1Pn3/n1qRP3/K1R3P1/2N4B/1r4Nr b - - 0 1 legal: proof: b4 g5 f4 e5 fxe5 b5 c4 g4 cxb5 g3 a4 Nh6 a5 Bc5 hxg3 Bf8 g4 Bc5 g5 Bb6 axb6 Ng8 d4 Ke7 Kd2 f5 Kc2 a5 Kb3 c5 e4 h5 g6 h4 b7 f4 e6 a4+ Kb2 f3 g3 f2 b6 c4 b5 c3+ Ka3 h3 Be3 h2 Bc4 f1B Qh5 Nc6 b8R c2 b7 Ne5 b6 Ra5 Ra8 c1R b8R Bb7 Ra6 Rb5 Rc8 Kd6 Rc7 Bc6 b7 Ne7 b8B Nc8 e7 Re1 Be6 Bc4 Bg8 Rf1 Bh7 Bg8 d5 Rd1 Nc3 Rdb1 Na2 Qe8 Nb4 Qd8 Ka2 a3 Nc2 Qf8 Bb6 Qf1 B8a7 Qf8 Ne2 Qf4 Re1 h1Q Rd1 Qhf1 Rd4 Qf8 Ng1 Qd8 Rb7 Qc7 Qh2 Qb8 Bd8 Qe2 Rc7 Qf1 Nb4 Qc1 Qb2 Qc5 Kb3 a2 Ka3 Qc4 Qh2 Rd1 Rc1 a1N Qh3 Nb3 Rc3 Rb1 Nc2 Nc5 Qh6 Na4 Qh4 Bf7 Qh1 Re8 Qh6 Bg8 Qg7 Rf8 Qh8 Rff1 Nh3 Qd3 Rb4 Qb7 Bg1 Qb8 Bh2 Rh1 Rd4 Qc4 Ng1
b1R3bq/1P1B4/Rb3PQk/1rNPK3/2B2nr1/q1n1BrP1/2pBP3/4N1N1 b - - 0 1 illegal: No proof kernel
1nq1R3/5Bn1/r1Q1bnR1/Pp2rb2/1P2P1nR/1P3R1N/1BPK3N/n3B2k b - - 0 1 illegal: No proof kernel
BQ4Rb/3NPPR1/3K1npP/6N1/n1B1r3/2n2P1q/1B2rPb1/B1R1bkn1 b - - 0 1 illegal: No proof kernel
1b2R2b/2p3Nn/n3Pr2/B1rR2k1/R2Q2NN/1PP1Pr1q/P4rB1/3KRn2 b - - 0 1 illegal: No proof kernel
BR4KB/1q1r1PP1/2rnNR1N/P3R3/k7/1qP2pQR/P2b1N2/1n1qq2b b - - 0 1 illegal: No proof kernel
r3q2q/1qPQP1P1/1N3rn1/n5B1/Nq6/1R2pB2/RP2KBPN/2N1b1kb b - - 0 1 illegal: No proof kernel
krRb2bB/8/2NbPr1R/R1Np1P1B/B1P2RK1/3P3Q/r3P2b/1q1q2n1 b - - 0 1 illegal: No proof kernel
1N2NB1K/np4N1/3b1P2/1P1BB3/bP2PR1b/P1R1n1bn/q2q3k/1Br2Q2 b - - 0 1 illegal: No proof kernel
1K3N1q/1PN4p/bRP3BQ/1P4R1/bP2qrb1/2B1n1nP/4BbN1/2nk1B2 b - - 0 1 illegal: No proof kernel
1N2Nb2/2K1P3/3nRp2/Bb3BrN/3B1bP1/b1PPkP2/n2n2nR/1BQr4 b - - 0 1 illegal: No proof kernel
BnN2k1b/4PB2/P1R5/npKR1brb/2BR1P1r/1P2P3/p7/NQBn1q2 b - - 0 1 illegal: No possible last move, all moves rejected
1N4B1/3np1P1/2K1N1nP/prb1BP2/RP1R1q2/5N1q/5rNP/Bn1b2Qk b - - 0 1 illegal: No possible last move, all moves rejected
n3R1Nq/1P2RP2/2r2rqn/bp1BP1B1/b3R1B1/4N1R1/pK1P2QP/3bk3 b - - 0 1 illegal: No proof kernel
B2b2rq/3R2b1/R2QN1P1/p1bN2R1/2P1b1P1/nk1N3P/Pr1Rp3/B1n1K3 b - - 0 1 illegal: Other
2bN1nBb/NR3P1b/3r2b1/p1QRN1p1/1P1P4/kqn2r2/1B2P1BP/KB6 b - - 0 1 illegal: No possible last move, all moves rejected
n2NN2r/P1n2PB1/P2q2p1/RB1Bnb1b/1k3Kn1/Q4N2/2PrpRP1/N7 b - - 0 1 legal: proof: e4 a5 d4 f5 exf5 c5 dxc5 a4 h4 a3 h5 g6 h6 Bg7 hxg7 Ra6 bxa3 Rc6 a4 Ra6 a5 Ra8 Kd2 h5 Ke3 b5 a4 e5 f4 Ke7 c6 d5 c7 Kd6 a6 Kc5 a7 h4 f6 d4+ Ke4 h3 f7 b4 f8N h2 f5 d3 f6 b3 a5 d2 a6 b2 f7 Nc6 Ne2 Nge7 g8N Qd6 Ng1 Nd5 Qf3 d1B Bb5 Kb4 Ne6 Nb6 Nd2 b1N Ra5 Na3 Nd8 Bf5+ Ke3 e4 c8B Rb8 Bb7 Ne5 Bd5 Na8 Kf4 e3 Nf6 Rb7 Nb3 Rd7 Qg3 Bh5 Nf3 e2 Rf1 h1N Bb2 Nf2 Ne8 Nfg4 Ba1 Nac4 Rf2 Nc7 Bb2 Nb6 Na1 Nba8 Kg5 Nc6 Bg7 Nce5 Kf4 Qe6 Bdc6 Rd2 Bd5 Qd6 Qh3 Rd1 Qh1 Rd3 Qc1 Rd2 Qa3#
qb2R2K/NPq2N1B/p2P1k1P/P4b2/1bqnr1Q1/1pR5/3NB2P/2N2nB1 b - - 0 1 illegal: No proof kernel
3r1qnQ/P2bp3/NBP5/2P3R1/P1Bb1rp1/2bRP1K1/2k1N2B/r2qN1N1 b - - 0 1 illegal: No proof kernel
4Bn1B/1PN2P1b/1bq4P/pRbN1b2/P4p2/3Q1k1P/1BrrR3/K3B1bN b - - 0 1 illegal: No proof kernel
6qr/QnRN4/PN1pq1PB/4qp1P/P2P1N1r/qB5k/Rb3KR1/2n4N b - - 0 1 illegal: No proof kernel
R2N2K1/pNNqR3/5BBq/RP2p1P1/bQPkr3/2b1b1nn/P4P1b/4R3 b - - 0 1 illegal: No proof kernel
R1N2Q2/2p2RR1/BBr1n2k/1q2pP2/2P1P1n1/Nn1r1rPq/1K1N1P2/r3N3 b - - 0 1 legal: proof: d4 e5 g4 b5 a4 f5 axb5 Be7 gxf5 Bb7 b6 Be4 d5 Bf8 Bh3 g5 Kf1 g4 Ra6 g3 Ra5 Be7 Ke1 Bh4 Bf1 g2 Ra1 Bg3 hxg3 Bf3 Bh6 Bh5 Be3 Bf7 Bc1 Be6 dxe6 Qe7 Qd3 Qg5 Qd1 Qd8 Kd2 Kf8 Kc3 Kg7 e4 h5 b4 a5 e7 d5 e8R d4+ Kb3 a4+ Kb2 h4 b5 d3 b7 h3 b6 h2 Be3 d2 Ba6 Qd5 c4 Rh6 Rf8 Rc6 Nf3 g1R Ne1 Nf6 Na3 Nbd7 b8N Nc5 b7 Ng4 Nd7 Ne6 Bb6 Kh6 b8N Qb5+ Qb3 d1R Qb4 Ra7 Nc5 Rd3 Nbd7 Ra8 Rg8 Rf3 Ra2 Rd8 Nb3 Rf1 Nd2 Rg1 Nf6 Rdd3 Nd5 Rf1 Rg7 Rg1 Ng2 Ra1 Rd1 h1Q Ne7 Qh3 Nc8 Qa5 Qf8 Qb5+ Nb3 Rde3 Rdd7 Rc3 Rdf7 Rcd3 Nb1 a3+ Kc2 Qh4 N3d2 Qh5 Ne1 Qh3 Rb2 a2 Na3 Rd1 Rb3 a1N+ Kb2 Rc1 Rb4 Nb3 Ra4 Ra1 Bb7 Qc5 Ra8 Qb5 Ba6
k2QrNqR/8/1pr1PPp1/5R1P/b1BN1B2/P1nP3p/3n2R1/n1BBb2K b - - 0 1 illegal: No proof kernel
1b1N2K1/1RRn1B2/2pPq1B1/2PP2R1/7P/3qR1pk/rr3BpP/n3N1bQ b - - 0 1 illegal: Other
2q2R2/1k1r1Q2/PN1B2Bb/2pPR1P1/nnK3b1/1p1P2PN/1q3pR1/r2B1B2 b - - 0 1 legal: proof: f4 a5 h4 g5 hxg5 e5 fxe5 d5 b4 d4 bxa5 d3 cxd3 Nh6 d4 Ng8 d5 Bh6 Na3 Bg7 Nb1 Bf8 e4 Kd7 Ke2 f5 Kd3 b5 a4 h5 e6+ Kd6 a6 c5 e5+ Kc7 a5 h4 e7 f4 e8R b4 a7 b3 e6 f3 e7 h3 Rh2 f2 Qh5 Bh6 Qf7 Rh7 Nc3 Na6 Na4 Rh8 Nb6 Nb4+ Kc4 Kb7 Rf8 Bg4 e8B+ Ne7 Bb2 Qb8 Re1 Qc8 Be5 Rg8 Bd6 Rb8 Rh1 h2 Nh3 Rh8 Rg1 h1Q Re4 Qh2 Re2 Qe5 Re1 Qa1 Re5 Qb2 a8B+ Ka7 d3 Rb7 g3 Rd7 Bc6 Rh7 Bb5 Kb7 Rg2 Qd8 Qe6 Nc8 Bh5 Rhe7 Qf7 Qe8 Rf5 Re1 Re5 Ra1 Ba4 Na7 Bg6 Nb5 Bh5 Nc3 Bb5 Be6 Bd1 Qc8 Ba4 Bg4 Bb5 Rc7 Bd7 Na4 Bf5 Re7 Bg6 Rd7 a6+
6N1/2p1n1P1/2qPp1PN/knB2R1b/Bn1BNr2/p1NrP3/1r1P2KQ/3R4 b - - 0 1 legal: proof: c4 d5 cxd5 b5 g4 g5 f4 b4 fxg5 b3 h4 e6 g6 Qd7 g7 Nf6 g5 Qe7 g6 Qd8 axb3 Be7 b4 Ng8 b5 Bg5 hxg5 Ke7 Rh6 Kd7 Rh1 Ke8 Kf2 Kd7 b4 f5 d6 a5 e3 h5 b6 Kc6 b7 Kb6 b5 a4 Qe1 h4 Ba3 f4 Nh3 f3 Nc3 Nc6 b8N Qe8 Qe2 Bd7 Na6 Nd4 Nc5 Ka5 b6 Nb5 b7 Ne7 b8B Rh5 Ba7 Rb8 Bb2 a3 g8N Bc6 Kg1 f2+ Kh2 Bb7 g7 Bf3 g6 Rd5 Rd1 Rd3 Ng5 h3 Nf7 Bh5 Nfh6 Qc6 N5e4 Rb7 Kg3 h2 Bc5 Rb6 Rg1 h1N+ Kh3 Rb7 Rg5 Rb8 Bg2 f1R Rf5 Rf4 Bf1 Nf2+ Kg2 Rd4 Ba1 Nd3 Qf2 Nb4 Bd3 Ra8 Bc2 Rd3 Ba4 Rb8 Qg3 Rb7 Qh2 Nc2 Bb2 Nbd4 Na2 Rb4 Rc1 Nb5 Bbd4 Rb2 Rd1 Nb4 Nc3
6Rb/1nk3NP/Bq2QK1p/PbRR1NN1/PBn5/5p1R/qpr2PP1/7b b - - 0 1 illegal: Other
3R1r2/q4NQ1/2K2pP1/2p2qn1/1b5R/1PP3Pp/RB1NN2P/rBN1bq1k b - - 1 2 legal: proof: d4 c5 f4 g5 fxg5 b5 a4 Qc7 axb5 Qb6 d5 Qd8 e4 Nc6 dxc6 d5 Ra4 d4 Ra5 Be6 Ra1 Bd5 exd5 Rb8 Kf2 Rc8 Ke1 Ra8 Kf2 a5 Kf3 h5 Ke4 e5 g6 Ke7 b3 Kd6 b6 d3 g3 h4 b7 d2 b8N f6 c7 h3 c8R a4 Bg2 a3 Qh5 d1Q Qg5 a2 Nd7 Bh6 Ne2 Qf1 Nd2 Qc7 Rb8 Qa7 Rb4 Rf8 Bb2 Qf5+ Ke3 e4 Ne5 Rh7 Nd3 Rd7 Rad1 a1Q Ndc1 Rc7 Rd4 Ke5 d6 Rcc8 d7 Ra8 d8N Q1a6 Nf4 Qf1 Qh5 Bg5 Qh7 Nh6 Qg7 Nf7 Bf3 Bh6 Bg2 Ng5 Nfe2 Qe7 Bf3 Ra1 Rg1 Qa7 Rg2 Qfd7 Rf2 Kf5 Bg2+ Kg4 Nf7 Qf5 Ra4 Qb7 Ra2 Qa7 Rf4+ Kh5 Nb1 Ne6 Kd2 Bg5 Kc3 e3 Kc4 Bh6 Kb5 Bg5 Be4 Bh6 Rf3 Kg4 Kc6 Bg5 Nd4 e2 Bd3 e1B Nde2 Bgd2 Be4 Bc3 Rd8 Bb4 c3 Ng5 Bc2 Qd3 Re3 Qdf5 Re4+ Kf3 Nd2+ Kg2 Bb1 Kh1 Rh4
3Qq1N1/3r2q1/b2R1B2/2P1p2q/p2NR1pP/PB3P1n/NrB1P3/n2k1N1K b - - 0 2 illegal: No possible last move, all moves rejected
3R2q1/rrpP1N2/1q2kP1P/1n1rp2R/2PR1B2/P4bN1/1Kp1Bb2/1BR4Q b - - 0 1 illegal: Other
1B2R1BQ/2Pn1rR1/3K2PN/5p2/b1bP3n/pr1NRBB1/Pp4Pb/2r3k1 b - - 0 1 illegal: No proof kernel
6br/KBPk4/2RQ3R/3RP3/1PB2NpN/bnpb1P2/6Pp/BB1rn1n1 b - - 0 1 illegal: No possible last move, all moves rejected
1b1B3N/P1p1Nbb1/B1bPn1PR/r2Q2pp/2R1R3/k1P4P/q1n3NN/5K2 b - - 1 2 legal: proof: e4 d5 exd5 a5 g4 f5 gxf5 a4 f6 a3 bxa3 Na6 a4 Nb8 a5 Bf5 Ke2 Bd7 Ke1 Bc8 f4 g5 f5 b5 Be2 Ra6 Bf1 Ra8 Ke2 Nh6 Kf2 Rg8 Ke1 Rg6 fxg6 Ng8 Bd3 Qd6 Be2 Qd8 Bf1 Bh6 Qe2 Bf5 Kf2 Na6 Bb2 Qd6 Qc4 Kd8 Na3 Rc8 Qb4 Nb8 Bg2 Bg7 Qc3 Nh6 Qf3 Kd7 Qe2 Rh8 Qd1 Ng8 Bf1 Bf8 Bc1 Ke8 Ke1 Bc8 Nb1 Qd8 a4 Kd7 d4 Kd6 f7 e5 a6 h6 a7 b4 a8R e4 a5 e3 a6 b3 Ba3+ Kd7 d6 Kc6 d7 e2 d5+ Kb5 Nf3 b2 Be7 Nf6 d6 Kb4 Qd5 Ng4 Nc3 Bb7 Rc1 Bg7 f8N b1B Ne6 Ba2 Nf4 Ka3 Ng2 Qg8 d8N Nc6 Nf7 Nd4 Re8 Ne3 Bd8 Bc6 Re4 Ne6 Kf2 e1B+ Kg1 Rh7 Nh8 Bg3 Be2 B3e5 Bf1 Bd4 Bb5 Ba7 Bc4 Nd1+ Kf1 Bb8 a7 Bb3 Ba6 Ne3+ Ke2 Nf5 Kf1 Nfd4 Qe5 Ba2 Nd5 Qf7 Ne7 Bb3 c3 Nc2 Rd1 Qg8 Rdd4 Bbd5 Rc4 h5 h3 Bh6 Qf5 Rf7 Nh2 Bg7 Qf3 Rf5 Rg1 Nf4 Qd1 Be6 Qd5 Bf7 Qe5 Qf8 Kf2 Ne1 Rf1 Bg8 Bc8 Bh6 Rcd4 Qf7 Ba6 Nc2 Rb4 Qa2 Rbc4 Be6 Qd4 Rb5 Qd5 Ra5 Kg1 Bg8 Rf2 Ne6 Kf1 Bf8 Rf7 Bh6 Rh7 Bg7 Rh6 Bf7 Rf4 Ned4 Rg4 Ne6 Rge4
1N1bB1n1/PN2rbpn/k3P1P1/r5B1/3BQrP1/p1r1N1p1/1R1K2P1/6NR b - - 0 2 illegal: Other
2RBq3/p4P2/2BP1p2/3R2bN/P1N1nQ2/2p1b2R/KbP2rP1/1NkbbR2 b - - 0 1 illegal: Other
1R5R/1K1R3q/2pkn1pn/Q2Pn1p1/2P2Nb1/PBP1b1q1/6P1/nB2BB1N b - - 0 1 illegal: Other
q3Q1B1/4pR1n/1K1NB2R/4p1p1/1PRP1B2/r2Bp1PP/N3P1n1/kr1b1r2 b - - 0 2 illegal: Other
1k1NRn1r/pqpP3p/rPR1p1QN/1PPB2KR/4N1n1/2P3B1/2n3N1/7b b - - 0 1 illegal: No proof kernel
6b1/3P1qB1/2kPpR2/1p1nbr2/N2N2B1/1P1Q1P2/1nRR1Ppp/K2RN1n1 b - - 0 1 illegal: No possible last move
8/1RP1p3/1KppNQ2/n1RP2n1/PPb3Rr/1bn2rR1/BN1pPB2/N4k2 b - - 0 2 illegal: Other
qN1K1b2/2pp1BNN/2PP1B2/n1kPq1P1/q2p4/N3r1Q1/3Pp3/1b2R1RB b - - 0 2 illegal: Other
1B2RK2/k1P3N1/nN2r3/2PQp2p/bb1bPbBP/N1bR4/2Pn2qR/N1r5 b - - 0 1 illegal: Other
2k1b3/Pb1Bq1p1/p1nr2b1/P5B1/R4rRB/K1bNNPn1/P2Q2P1/N5rB b - - 0 1 illegal: Other
2nN1n2/2B3Pp/2r1P1r1/q1nb1KpN/B1P4k/R1n3PB/3b1QbP/R4B1R b - - 0 1 illegal: No possible last move
R1Kb1Br1/1p3PR1/3B1b2/Rr3B1n/N5pp/NP2k1BP/2Pq2P1/b2Qn1q1 b - - 1 3 illegal: No proof kernel
1b4n1/2p5/1pBP2b1/rRBB2q1/nPN2k2/P1r4p/1nPR2PR/2BNq1QK b - - 0 1 illegal: No proof kernel
N1R1Nk1B/b1Rbb2r/p2p2n1/P1bP1Pq1/RrPn2RQ/Np5K/4P3/7B b - - 0 1 illegal: No proof kernel
KR3rBN/3R2k1/b1p1qNr1/BbRP1Q1p/5bPP/P6R/p1P1n1b1/1n2B3 b - - 0 1 illegal: No proof kernel
8/3kNpp1/4n2p/Pqb1B3/NB1PpQ1P/2rB3n/1KRPP2b/NbR1rB2 b - - 0 1 illegal: No proof kernel
3N3q/1pn1p1P1/PBPRpNR1/2K5/2prk1Bb/2n2RR1/1qPrP3/1N2Q2b b - - 0 1 illegal: Other
1N2K3/1R1r3p/2BR2p1/1P1PpNPP/r3rpb1/3RPQnn/N1N2knB/3q4 b - - 0 1 illegal: No possible last move
2n5/2BQp2p/2p1NP1K/2NrPb2/3r1rRb/2P2bBP/B1RPp1n1/1N1k3B b - - 0 1 illegal: Other
1Nr2N2/q1r1B3/pN1B2pk/1P2Qp1p/5RPP/1R2Knn1/Pb2BP2/n1N1n3 b - - 2 4 legal: proof: d4 c5 dxc5 d5 c4 b5 cxb5 d4 e3 Be6 e4 Bd5 exd5 Qc8 Qe2 Qd7 Qd1 Qd8 Kd2 e5 b4 h5 c6 f5 b6 Kf7 b5 Kg6 b7 a6 c7 d3 c8N e4 d6 Qf6 d7 Qd4 d8B Nc6 b8N Nf6 Ne7+ Kh6 Nc3 Ne5 Na4 Qa7 Nb6 Nf3+ Ke3 d2 Qe2 Rh7 Ng6 Ba3 Nf8 g6 Rb1 Rc7 Rb3 Bb2 Be7 d1N+ Kf4 Ba1 Bca3 e3 Bad6 Ne4 h4 Bh8 g4 Bb2 Rh3 Ng3 Qe1 e2 Rb4 Nc3 Ke3 Nb1 Rf4 Na3 Qa1 e1N Ne2 Rd7 Nc1 Rc7 Nbd7 Rac8 Be2 Nb1 Nb8 Nbd2 Bf6 Nb3 Bfe7 Ba3 Qe5 Na1 Rh1 Bb2 Rf1 Nd3 Rd1 Nde1 Rd3 Rc5 Ra3 R5c7 Rb3
3R3B/1rp1p3/1b4p1/2NQRP1n/2P1B1P1/Nb2PK2/p1N1pPRk/2nr1qN1 b - - 0 3 illegal: Other
N5K1/QR4pB/p1n4r/p2prk1N/1q1bNnRP/6P1/PN1PRP1p/B1b5 b - - 1 3 illegal: Other
3R3Q/1K1PnP2/4Q3/2Rr2rr/B2b1N1R/2b1bP1R/PBb1nP1k/2n4N b - - 0 1 illegal: No possible last move, all moves rejected
7Q/R1n1nn1n/PBr1P1N1/4rQ2/1N1q1rk1/r1rQ2P1/1K1RP1BP/Q7 b - - 0 1 legal: proof: d4 b5 b4 e5 dxe5 a5 bxa5 h5 g3 g5 c4 b4 Nf3 Ba6 Ng1 Bb5 cxb5 h4 Qd5 g4 Qd1 Bc5 gxh4 g3 h5 g2 Qc2 Be3 Qa4 Bf4 Qd1 Bg3 fxg3 Kf8 Bb2 Ke7 Bc1 Ke8 Kd2 Ke7 Kc2 Ke6 a4 Kf5 h6 c5 b6 d5 b7 c4 h7 b3+ Kc3 d4+ Kb2 d3 a6 c3+ Ka3 b2 a5 c2 a7 d2 e6 Nd7 b8Q Ndf6 Nh3 g1N Ng5 Kg4 Qc8 Nf3 Ne4 Ne7 Rg1 Ng5 Qb7 Qd4 Qb5 Rhc8 h8Q Rc6 Nc5 Nfh7 Nd3 f5 Nf4 Nf7 Ng6 f4 Bg2 f3 Nc3 b1R Nd5 f2 Nb4 f1R Qd3 Rf2 Qf1 d1N Be3 c1R Ra2 Rf4 Rd2 R1c3+ Ka2 Qg7 Bb6 Ne3 Qf2 Rbc1 Kb2 Qd4 Rf1 Ra1 a6 Rg8 a8Q N3d5 Qg1 Rg7 Qaf8 Nc7 Rf2 Raa3 Qa1 Re4 Rf5 Rf4 Rd5 Rg8 Rd8 Rg7 Ra8 Rg8 Ra7 Rg7 Nh4 Rg5 Ng6 Rgc5 Qc2 Re5 Qd3 Nd8 Qff6 Nf7 Qff5+
1r4N1/1n1R1BQP/P4K2/1q2P1p1/5NRb/2P1rk1P/R1Rqb3/bQ4Bq b - - 0 1 legal: proof: d4 a5 g4 d5 b4 e5 bxa5 h5 gxh5 c5 dxc5 d4 f4 d3 exd3 e4 d4 Nd7 d5 Ne5 fxe5 Qb6 Nh3 Qd6 Ng1 Qd8 Kf2 Kd7 Kg3 g5 Kg4 b5 Kf5 e3 a4 e2 d6 Kc6+ d7 e1B a6 b4 a7 f6 h6 b3 a5 b2 h7 Bd2 h3 Kd5 c6 Ba6 c7 Bb4 c8R Be2 Ra2 Bc3 a6 Nh6+ Kg6 Rb8 a8Q+ Kd4 Qb7 Ke3 Rh2 f5 Rg2 f4 Rg4 f3 Qc7 Bd4 Nc3 b1Q Ne4 f2 Nf6 Nf7 Ng8 Qb5 Qb7 Qda5 d8R Ba1 Kf6 Nd6 Qg7 Nb7 Rd7 Qc3 Ba3 Be1 Qb1 Qd2 Bg2 f1Q+ Bf3 Bd4 Bc5 Bh4 Ba7 Qg2 Bd5 Qh1 Bf7 Kf2 Rc5 Ba1 Bb6 Bd1 Ne2 Kf3 Nf4 Be2 Rc6 Rc8 Bg1 Rb8 Ne7 Rhf8 Ng8 Rfc8 Rcd6 Rc4 c3 Re4 Rc2 Re3 Rd3 Qc1 Rdd2 Qe1 Ra2 Qd1 Rdb2 Qd2 Rc2
2r5/N2b1P1k/5P2/1nPn3B/1nRQ3B/P1Br1R1b/NQ1P1prB/3b3K b - - 0 1 illegal: No proof kernel
1Bb3kb/rRp3rN/BRPq4/q4Q2/N1p1n1R1/r2P2Q1/P2PP2K/4R3 b - - 0 1 illegal: Other
r1r3b1/R4R1R/N1Q5/1nn5/1nP1p1pP/nP1Q1RkP/PNB1q3/2K3B1 b - - 0 1 illegal: No possible last move, all moves rejected
3N2rn/1P1QN1P1/4R1r1/1R3P2/PB1K2pk/Qq1BQ2r/5pPr/1n2Q2q b - - 0 1 illegal: No proof kernel
NK1Rr3/N3b1R1/1B1Np3/3Qq2P/Pr1p1P2/2P3p1/N1Q1q1P1/1n2r1kB b - - 0 1 illegal: Other
K1B3R1/1NP2bPp/1r1q4/1qPp2q1/1NNPr1Qb/4pP2/1R2N2k/B1Q5 b - - 0 1 legal: proof: g4 c5 f4 g5 h4 f5 gxf5 g4 b4 Nh6 bxc5 b5 a4 Nf7 axb5 Ng5 hxg5 Nc6 Ra4 Nd4 Ra1 Nf3+ exf3 Ba6 Rh2 Bb7 Rh1 Bc8 Ke2 Kf7 Ke3 e5 Ke4 a5 Kd5 d6 Kc6 d5 c4 g3 d4 e4 g6+ Kf6 b6 g2 g7 e3 b7 a4 b8N a3 Na6 a2 Na3 Be6 Kb7 Bg8 c6 Bd6 c5 Bf7 c7 Qe7 Ne2 g1Q Bh3 Qg4 Nc4 Rae8 Nb4 Ra8 Bb2 Bh5 Qc1 Qg5 Rh2 Kf7 f6 Kg6 f5+ Kh6 f7 Rhe8 f8Q Ra6 f6 Bg3 f7 Qd6 Bc8 Rb6+ Ka8 Re4 Qd8 Be1 f8N Bh4 Ne6 Bf7 Qd7 Kg6 Rb1 Kh5 Nd8 a1Q+ Na2 Qgh6 Nb7 Qg5 Bc3 Qb2 Nb4 Qb3 Ba1 Qa4+ Nca5 Qac6 Nc4 Qb5 Rg2 Be1 Rb2 Kh4 Rg4+ Kh3 Rf4+ Kg2 Qg4+ Kh2 Rf5 Bh4 Rf6 Bg8 Rf8 Bf7 Rg8
1K2RBbB/p1p1pkR1/8/1Q1N1N2/2Pq3q/1PPbPB1q/3B1PQ1/n6n b - - 0 1 legal: proof: c4 f5 a4 b5 g4 Na6 gxf5 Rb8 Nf3 Rb6 Ng1 Re6 axb5 Re3 Bh3 Rg3 Bf1 Rc3 dxc3 Kf7 f6 h5 h3 Rh6 h4 Ke6 f7 Rf6 Bh6 g6 Bf4 Bh6 Bc1 Bg5 hxg5 Kf5 gxf6 g5 Ra2 Ke5 Ra1 Ke6 Kd2 d5 Ke3 d4+ Ke4 g4 f8B h4 e3 d3 f7 h3 b3 h2 b6 g3 b7 d2 b8Q g2 Ne2 g1Q Bg2 Nb4 Qf1 d1Q Bg7 Q1d6 f8B Nc6 Nd4+ Kf7 Bf3 Qg5 Nf5 Q6d7 Nd2 Nh6 Bh8 Nb4 Qg2 Nc2 Qb5 Qh4+ Ke5 Bb7 Ne4 Bd5 Bd2 Q8c8 Rag1 Na1 Nf6 Be6 Ng7 Nf5 Nd5 Ng3 Nf5 Qdd8 Rc1 Qdd7 Rhg1 h1B Rcd1 Qh3 Kd4 Qh4+ Kc5 Qcd8 Nf4 Qd4+ Kc6 Q8d7+ Kb7 Bd5+ Kb8 Be4 Qh3 Bd3 Nd5 Bg2 Qg4 Nh1 Qe4 Bh3 Rg8 Bg4 Rg1 Bh5 R1g5 Bg6 Qg4 Bh7 Qg2 Qe6 Bfg7 Qeh6 Re8 Bg8 Bf8 Qh3 Rg4 Q6h4 Rg7+
n4b1b/2RP4/Qrp2kq1/5p2/1np1Q3/PPP1B1Bp/1N3NP1/BB2KR2 b - - 0 1 illegal: Other
7b/PNkq4/qQP1B1rP/4Pb1n/3q1nn1/3QR2N/r3Pr1N/1RKN2B1 b - - 0 1 legal: proof: f4 a5 g4 h5 gxh5 e5 fxe5 c5 b4 c4 bxa5 c3 dxc3 Qc7 c4 Qb6 c5 Qd8 Kd2 b5 a4 d5 h4 Kd7 c4 f5 a6 g5 a7 b4 a5 f4 h6 d4 c6+ Kc7 a6 g4 h7 d3 c5 b3 h5 b2 h6 f3 Rh3 f2 Rg3 Nd7 Nf3 Ndf6 Nh2 Bg7 Nc3 b1Q Re3 g3 Bh3 f1R Be6 Qb7 Rb1 g2 Bb2 g1N Kc1 Rf2 Qb3 Qb5 Nd1 Nh5 Bd4 Ngf6 Qb4 Re8 h8N Ng4 Nf7 Qa4 Ng5 Rg8 Nh3 Bh8 Qc4 Rg6 Qb5 Rb8 a8Q Qd7 a7 Qa6 Qc4 Rb2 Qb7+ Kd8 Qbb5 Ra2 Qbb3 Nf3 Qcc3 Ne1 Qcc2 Ng2 c7+ Ke8 c6 Ngf4 Bc5 Qd4 Qb6 Bd7 Bc4 Bf5 c8N Qd7 Nd6+ Ke7 Qbb3 Kd8 Nb7+ Kc7 Be6 Ra3 Kb2 d2 Qcd3 Ra5 Nc3 d1Q Qb6+ Kc8 Bd4 Qa4 Bc5 Qd4 Kc1 Ra2 Nd1 Rf3 Qbb5 Qd5 Re4 Kc7 Bg1 Rf2 Re3 Qd4 Qb6+
2Q1Kb2/kBr3b1/1Q3qPN/5Rq1/1R1Pb1n1/PP1P1br1/1B4bB/1N2Bn2 b - - 0 1 illegal: No proof kernel
1R2qk2/K2Qr2B/N1PPq3/4bPq1/2Qn1RP1/BqPQnN2/4b3/r4q1Q b - - 0 1 illegal: No proof kernel
3r1b2/1K2P2n/B4B1r/1QN2k2/P1b4q/Q3R1RP/PPN1b1N1/Nbq1n2b b - - 0 1 illegal: No proof kernel
2N3b1/4R1bk/B1b3N1/6Nr/n2QPP1n/1r1qBPn1/qPPQN2K/nR6 b - - 0 1 illegal: No proof kernel
3RqR2/Br1PPNn1/4NR1K/2q5/P6P/Q2q1b1B/1PQk2bn/b3r1bR b - - 0 1 illegal: No proof kernel
B2Rn1qQ/Pq1N2b1/5Pn1/NP1r1B2/b3KQ1q/n1r5/PP2n1Bk/4B1R1 b - - 0 1 illegal: No proof kernel
1K1R2Nn/rP1P1Nb1/Rq1N1r1p/1q6/P1Q1B1PB/2P1kb2/Q4n2/N4qr1 b - - 0 1 illegal: No proof kernel
B5qR/RP1r3P/1N1P1KP1/N2r2r1/n3rnP1/4Q3/2bB2pb/1Bb1QBk1 b - - 0 1 illegal: No proof kernel
2N2qb1/q1rPn3/P1kQn2R/6rQ/K3pB2/1R3Bb1/Nq1PP1P1/1R3q1R b - - 0 1 illegal: Other
B1Kbr3/R1R1rBNr/pB4Q1/P2q3P/4N2P/3qP3/2n1P1r1/1B2Qqkb b - - 0 1 legal: proof: f4 e5 fxe5 c5 b4 h5 bxc5 Na6 g4 Nc7 gxh5 Nd5 Nc3 Qc7 Nb1 Ne3 dxe3 Qd8 Kf2 Ke7 Kf3 Ke6 Kf4 g5+ Ke4 d5+ Kd4 Kf5 h4 Kg4 c4 Kg3 a4 Kf2 e6 f5 Ke5 b5 e7 d4 e8Q g4 c6 f4 c5 d3 c7 b4 c6 f3 Nc3 g3 Ba3 b3 Bb4 g2 Ba5 d2 Bb6 b2 Qg6 Bb7 Ke6 b1Q c8B Qbd3 c7 Be7 Bd7 Rc8 Be8 Rh7 Bf7 Nh6 Qc1 Rb8 c8B d1R Bd7 Nf5 Ne4+ Ke1 Bc6 f2 Nh3 g1R Bg2 f1Q Nf4 Ra8 Bh3 Rg2 Bd5 Qg8 Kd7 Bd8 Ne6 Nd4 Ng7 Nc2 Bf5 Rb8 Rg1 a6 a5 Ba8 Ra4 Rb7+ Kc8 Re7 Rc4 Re8 Rc7 Bc6 Nc5 Kf2 Qa1 Rb1 Bfe4 Rb2 Ba2 Rb5 Bb1 Rb4 Bf3 Rbe4 Qc3 R4e7 Qa1 Bb5 Ba8 Bc6 Ra7 Rh2 Rg4 Bh1 Rc4 Rg2 Ne4+ Kg1 Rc6 Qd5 Rcc7 Qd3 Bb3 Qgf7 Qc3 Qfd5 Qe1 Qd6 Be6 Q6d5 Bf7
1n1KN2r/pB3q1P/b2Pq1P1/2B1R2Q/4QB2/NBbP1nq1/P4b2/Rq4k1 b - - 0 1 legal: proof: g4 d5 b4 h5 e4 g5 exd5 c5 bxc5 b5 gxh5 g4 f4 Na6 Kf2 Rb8 Ke1 Rb6 Be2 Rg6 Bf1 Rg5 fxg5 Bf5 Ne2 Be6 Ng1 Bc8 Ke2 Kd7 Ke3 e5 Ke4 g3 Kf5 f6 h4 g2 c4 b4 g6 b3 h6 b2 d6 e4 h5 e3 h7 e2 h6 e1Q Rh5 Qb6 Nh3 g1B Ng5 Kc6+ Ne6 Bd4 Na3 Bb7 Ng7 Be5 Ke6 b1Q Ne8 Bc3+ Re5 f5 Qh5 f4 Be2 f3 Bd1 f2 Bb3 f1Q d3 Nf6 Bf4 Ng4 Kf7 Bg7 Ke7 Qb4 Kd8 Nb8 Qg5 Nh2 Qh5 Rf8 h8B Ba6 h7 Qg3 Bd2 Qf7 Bf4 Bh6 Bg7 Nf3 Bh8 Kb7 c6+ Kb6 c7 Qb5 c8Q Qbd5 Bg7 Rh8 Qcf5 Kc5 Qe4 Bg5+ Bf6 Bh4 B6g5 Qg2 Bf6 Bf2 B6g5 Qg3 Be3+ Kb4 Bgf4 Qde6 c5+ Bd4 c6 Kc3 Rd5 Bg7 Bc5 Bgd4 Be5 Kd2 c7 Bb2 c8B Bc3 Be3+ Ke2 Bb7 Kf1 Bc5 Kg2 Bf4 Kg1 Re5
bB2nQ2/n2k3r/1q2p3/2PP3r/prB1NRR1/2PnKb2/P4QP1/1B3N1B b - - 0 1 illegal: Other
2r1N2R/1N2q2p/1K1P4/1b1Pq1Rk/BB1nQ1n1/6P1/PRP1pQ2/b2qRr2 b - - 0 1 illegal: No proof kernel
1R3B2/K3Q2b/1Pqb1N1P/1Rn4p/4B2r/1BPP2r1/1kbBb1pP/1NQ1r3 b - - 0 1 illegal: No proof kernel
k3b2B/br1B4/3K2nn/3RPqn1/1PRQ1N2/p3qPBN/P1BpP3/2Qn4 b - - 0 1 legal: proof: g4 e5 h4 a5 d4 b5 dxe5 g5 c4 f5 gxf5 g4 cxb5 Ra6 Qd5 Rg6 Qd1 Rg5 hxg5 Bd6 Qd3 Bc5 Qd1 Bf8 Kd2 h5 Kc3 c5 Kc4 d5+ Kb3 Kd7 g6 Kc7 b6+ Kb7 f3 d4 Kc4 d3 b4 a4 f6 g3 f7 a3 g7 h4 Rh3 g2 Rh1 h3 Bf4 h2 Qa4 Bd7 Kd5 c4 Bg3 c3 Qc2 Nh6 g8B Qf6 Qc1 c2 Bh7 Be8 Nh3 g1N Nc3 Bc5 f8B Nd7 Bg7 Nf8 Be4 Rg8 Bh8 Ng6 Rb1 Kb8 b7 Ba7 Rb3 Qf4 Kd6 Qf5 Nd5 Rg7 Ndf4 d2 Rd3 Rc7 Qd1 c1Q Rd5 Qc3 Bc2 Qe3 Qc1 Rg7 Nf2 Rf7 Bh3 Re7 Bg4 Nh3 Rg1 Ng5 N2h3 h1N Rg2 Qfe4 Bd7 Nf2 Rg1 Nd1 Rf1 Bd4 Re1 Ka7 Rf1 Qf5 b8Q+ Ka6 Rg1 Ba7 Qd8 Kb7 Qb6+ Ka8 Qd4 Qfe4 Bf2 Rh7 Rg4 Qf5 Bg3 Rf7 Ng2 Re7 Re4 Rh7 Ngf4 Re7 Qd3 Rh7 Rc4 Rf7 Qd4 Rg7 Bc8 Rb7 Bd7
1rqN3K/r4BB1/1N1p3P/1p1P3q/RP3Prk/1R1R3P/n2Q3R/1Qbr1q2 b - - 0 1 legal: proof: e4 f5 exf5 h5 g4 b5 gxh5 Nc6 a4 Nd4 c4 Nb3 a5 Nc5 a6 Na4 c5 Bb7 axb7 Nb6 cxb6 Rh6 Bd3 Rh7 Bf1 Rh8 Ke2 Kf7 Kf3 Kf6 Kf4 g5+ Ke4 e5 b8R c5 b4 a5 d4 a4 h3 a3 b7 c4 Bb2 a2 Nc3 g4 Na4 Kg5 f6 c3 f7 c2 Rh2 c1R Ne2 g3 Nb6 g2 Nf4 g1R Ne6+ Kh4 Kf5 e4 Bc4 Ne7+ Kf6 Bh6 f8R Qc8 Nd8 e3 Bf7 e2 f3 Bf4 h6 e1Q Rb1 Ra3 Ra8 a1Q b8Q Rg4 Qd6 Qf1 Ra4 Bg5+ Kg7 Nd5 Re8 Nc3 Re3 Na2 Rd3 Be3+ Qg6 d6 Qd2 Rd1 d5 Bg5 Bf6 Qe5 Rbb3 Qef5 Bc3 Be3 f4 Qh5 Qg2 Bc1 Qd2 Rg8+ Kh7 Re8 Bg7 Rf8 Ra8 Ra7 Qe4 Rb7 Ra4 Rb8 Qf5 Re8 Qe4 Re7 Kh8 Rd7 Re3 Rc7 Qb1 Ra7 Red3
N1n3QB/nPb5/R1rqkp2/3R3N/1P2P2q/5p2/KpBPPB2/QB1b3r b - - 0 1 illegal: Other
BB2R3/1N2pNP1/3pqQ1r/1p1P1Rrk/Qb6/2n1P1Qb/P1qq2P1/K6Q b - - 1 2 legal: proof: h4 g5 f4 a5 b4 b5 bxa5 c6 c4 Na6 h5 Nc5 fxg5 Ne6 c5 Qb6 cxb6 Nf4 Qb3 Nf6 Qd1 Ng6 hxg6 Ng8 d4 f5 Kd2 h5 Kc2 h4 Kb2 h3 g7 Kf7 g6+ Kf6 a6 f4 a7 Kg5 b7 h2 b8Q c5 Nh3+ Kh4 Nd2 f3 Ng5 c4 Nb3 f2 Bf4 Rh6 e3 Nf6 g8Q Ne4 Bd3 f1Q Nf7 Bg7 Qb6 Nc3 Be4 Qd3 Bb8 d6 Nc5 Bh8 Nb7 Bh3 Rb1 Bg7 Ka1 Qc2 Rf1 h1Q Rf5 Qe1 Rc1 Qed2 Qh1 Be5 Bf3 Bg3 Qa5 Be1 Qa4 Qe4 Qg7 Qe6 Bc6 Qc2 d5 Bd2 Qf6+ Kg4 Bc7 Rg8 a8Q Rg7 Bb8 Be1 Rf2 Kh5 Rf4 Ne4 Q8a5 c3 Qd8 Qd2 Qg8 c2 Rf3 Qd3 Rf4 Bb4 Rcf1 Qd2 Rf5+ Kg4 Rc1 Nc3 Nc5 Ne4 Ba8 Ng5 Rb1 c1Q Nb7 Qc4 Re1 Ne4 Rc1 Qb3 Rc6 Qbc2 Rc8 Nc3 Re8 Rh5 Rd8 Rgh7 Re8 R7h6 Qe5 Kh4 Qgh8 Kg4 Qhf6 Rg5 g7 Kh5 Qg3
NRRn1q2/p1p1qPP1/B1bk4/PQPp1n2/1K3N2/2Pr1N1r/1N6/2Bq2Q1 b - - 0 2 legal: proof: d4 e5 dxe5 g5 c4 f5 e4 g4 exf5 g3 hxg3 Qg5 g4 Qd8 g5 Bc5 Qa4 Bd4 Qd1 Bc3+ bxc3 Ke7 Qf3 Kf8 Qd1 Ke8 Kd2 Ke7 g4 b5 a4 h5 f4 d5 e6 b4 g6 b3 a5 b2 g7 h4 g5 h3 f6+ Kd6 e7 h2 e8Q Bh3 g6 Bg2 f5 Bh3 f7 Rh7 f8N Nf6 g8N Bg4 g7 Rh8 Ne7 Rh4 Kc2 Nfd7 Kb3 Rh3 f6 Bf5 f7 Rh5 Nfg6 Bd3 Na3 Rh3 Nf3 Rg3 Rb1 Nf6 Qb5 Nc6 Bh3 Qf8 Qg1 Nd8 Bc8 Bf5 Ba6 Ng8 Nc2 Nh6 Nce1 Bd7 Nf4 Bc6 Ned3 Nf5 Kb4 Rc8 Neg6 Rb8 Nge5 Rb6 Nd7 Rb8 Ra1 b1Q+ Nb2 Qe4 Rb1 Qee7 Nb6 Rh3 Na8 Rb6 Ne5 Rd3 Nf3 Rb8 Qg5 Rc8 Re1 h1Q Qg1 Qg5 Re8 Qge7 Qf2 Qd1 Qfb6 Nb7 Qg1 Rb8 Rc8 Nd8 Bd2 Rb6 Bc1 Nd4 Na4 Be8 Ka3 Nf5 Qbc5+ Kd7 Rb3 Rh6 Nb2 Rh3 Rbb8 Qd2 Ka4 Qde1 Qb5+ Kd6 Kb3 Bc6 Kb4 Qd1 c5+
3q1q2/4p3/4BNR1/1P1p1n1N/2pb1b2/PnRPPNr1/Q2BQ1P1/qk1K1N2 b - - 0 2 illegal: No possible last move
3n2N1/n7/1pp1rrBB/bRPPP3/K2N1R1p/P1Q1QN2/1k1nqP2/6nN b - - 0 1 illegal: No possible last move
3b4/1P1B4/1b1q2pn/n1RQ1P2/K3Bp2/Q1b1kPPP/1NB3rp/3NB1Rb b - - 0 2 illegal: No proof kernel
RR2n3/2n4N/Pp1R1Q2/1Q2BP2/p4P1K/1rPNkb2/1pP2prR/1qbB4 b - - 0 1 illegal: Other
1Q1R2K1/3N1p1p/BP3p1P/2bq2p1/1B2QP1P/1kN1bB1n/1P1R1nrb/5B2 b - - 0 2 illegal: Other
3kqQKR/2P1p1Pp/1R2QBp1/1p2q2P/b1N1P2b/2bBn2B/1PN2B2/7n b - - 2 3 illegal: No possible last move, all moves rejected
2KNN2r/1pQ2qp1/p1b1pN1n/2N2n1P/1Q1R1r2/BP2P2p/PR4BP/2k5 b - - 1 4 legal: proof: g4 d5 c4 f5 cxd5 Qd6 gxf5 Qg3 fxg3 h5 Nf3 e6 Nd4 h4 Nf3 h3 Ng1 Bd6 Nc3 Be7 Nb1 Bh4 gxh4 Kf7 Qa4 Kf8 Qd1 Ke8 Kf2 Kd7 Kg3 Kd6 Kf4 Kc5 Ke5 Kb4 d4 c5 Kd6 c4 Kc7 c3 b3 a6 d6 c2 d5 Rh5 d7 Rh8 d8N Bd7 e3 Bc8 h5 Nd7 d6 Ne7 f6 Nc5 d7 Re8 f7 Nf5 f8N Na4 Qd2+ Nc3 Bg2 Nh6 Nf3 Re7 Ng5 Rb8 Ngf7 Ra8 Nh7 Re8 Nd6 Rf8 Ne8 Rf4 Rd1 Rb8 Bb2 c1Q Nhf6 Qc2 Qe1 Qf5 Nd2 Ne4 Rab1 Nd6 Ba3+ Kc3 Nde4+ Kc2 Rd4 Qg6 Nc5 Qf7 Qb4 Ndf5 Rb2+ Kc1 Nc6 Qg6 d8Q Bd7 Qe7 Qf7 Nd8 Ra8 Kb6 Rc8 Ka7 Bc6 Qd6 Rc7 Kb8 Rd7 Qc7 Re7 Nd6 Re8 Kc8 Rh8 Nde8
q5N1/b1Qp1Rn1/Pn2kP1B/NBp2p2/Pp3P2/1KQ1n2p/1P1RQ3/3r3Q b - - 0 1 illegal: No proof kernel
n4Q2/N5BN/PqP1p1PK/1p1rPb2/2B1BQk1/Rr6/1Pq3r1/bnR1Bq2 b - - 0 1 illegal: No proof kernel
q6Q/kn1p4/N1P1BBK1/qRnQ2pN/1P1P4/3PNRP1/2n2bb1/1rb1r2N b - - 0 1 illegal: No proof kernel
1Nb5/Q1KppP2/B5n1/P1Q4P/1qR1bn1b/3PPR2/r1N2N2/Br2qnkN b - - 0 1 illegal: No proof kernel
2bnK2k/2b1PB2/1pP5/P1NQ1n1r/1bR5/pPrNBbq1/P2Q1R2/2B3bB b - - 0 1 illegal: No proof kernel
3n2r1/B1R1P1RP/4NK2/r1b1pb2/bq2PpB1/1Np2P1r/2P1nQ2/1k3QNN b - - 2 3 legal: proof: d4 e5 g4 b5 a4 h5 gxh5 Bc5 axb5 Qf6 d5 Qe6 dxe6 Bf8 Kd2 Ke7 Kd3 Kd6 Ke4+ Kc5 Kf5 Kb4 e4 a5 h4 d5 b6 g5 b7 c5 h6 a4 f3 a3 h7 g4 h5 a2 h6 c4 Nd2 d4 Nb3 c3 Be3 g3 Bh3 d3 Bg4 d2 Qf1 d1B Ba7 Nc6 b8N g2 Nd7 Nf6 Ndc5 Nd5 Nd3+ Ka4 Qf2 Nf4 Kf6 Bc5 e7 Be2 Rh3 Bf5 Rg3 Rhg8 h8N Nd8 h7 Bf1 Rb1 a1Q Ng6 Ne2 Ngf4 Qa3 Ne6 Qb4 Rd1 Rg5 Rd2 Rh5 Rd1 Rh3 Ra1+ Kb5 Ra6 Kc4 Rc6 Kb5 Rc7 Ka4 Bb6 Ra6 Ba7 Ra5 Nbd4 Qb7 b4 Ka3 b5 Ka2 b6 Kb1 Nb3 Qb8 Rc8 Qd6 b7 Qb6 b8Q Qb4 Qd6 Bg6 Kg7 f5 Qa6 f4 Kf6 Bf5 Rc7 Nc1 Nb2 Bb5 Nd1 Bc6 Qaf1 Ne2 Qd4 Ba4 Nf2+ Nc1 Ne2 g1R Nh1 Rg2 Qdf2 Rg1 Bh5 Rg2 Rg7 Rg4 Ng1 Rg2 Qd3 Rg5 Bg4 Ne2 Rf7 Rg8 Rg7 Kb2 Qd1 Ka2 Qdf1 Kb2 Q1g2 Kb1 Qgf1+
8/Rp2pNn1/3PBB2/QKRn4/4PPNr/P2N3r/qPn1kp2/1rQ2Nbb b - - 0 1 illegal: No proof kernel
1N1Q4/2pN2Nk/pPr3Nn/b3qB1Q/qpPP4/1P1bRPB1/q5rR/6nK b - - 0 1 illegal: No proof kernel
3k2Kn/2pN1P2/B1q2R2/2PprbQP/prQ2b2/1q4n1/2PP3b/B2NRRR1 b - - 0 1 illegal: No proof kernel
3qQkBN/2p2p2/r2b4/qRR1P1P1/q2N2B1/2Q2Kpb/2PB1PPB/2nn3r b - - 2 3 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 g4 h4 Qg5 hxg5 Ba3 Qd5 Be7 Qd1 Bf8 b4 h5 e4 a5 Ke2 d5 e6 d4 e5 a4 e7 a3 b6 h4 b5 a2 b7 h3 b6 h2 Nh3 Bd7 Qd2 Ra3 Nc3 Ba4 Nf4 Na6 b8B Bd7 b7 Bf5 Ba7 Nc5 Nb5 Nb3 Ng6 Nf6 Qc3 Ra6 Bf4 Ne4 b8Q+ Bc8 Rg1 h1Q Bh2 g3 Kf3 d3 Nd4 d2 Bd3 Nc1 Bc5 Rh5 Nh8 Rh4 Rd1 Qe1 Rb1 a1Q Rb5 Qa4 Bb4 Rh3 Qa3 Nc3 Bh7 Rh5 Bg8 Rhh6 Bg1 Rh1 Bh2 N1e2 Ra1 Nd1 Qc3 Nc1 Rb1 Ra5 Rc5 Ra6 Qb6 Bf5 Qe6 Bh3 Ba5 Ne3 Rbb5 d1Q+ Ne2 Qd6 Nd4 Qd8 Qc8 Nd1 Qb8 Kd7 e8B+ Ke7 Bd7 Qd2 Bc8 Ke8 Bg4 Bd6 Qa1 Qe1 Bd2 Kf8 Qc3 Qf1 Rb4 Qfb5 Rb3 Qb6 Rbb5 Qba5 Qc8 Ra7 Qd7 Ra6 Qe8+
1N1n1r2/P2PqQ2/1b1bBR1N/1bN1p1k1/R4P2/p1br1nN1/PB1pPQ2/5K2 b - - 0 1 illegal: No possible last move, all moves rejected
R3B1Q1/2PN3p/p1q2p1P/Pq3q1N/2b1R3/k2RPP1r/qB6/rRbn1QK1 b - - 0 1 legal: proof: d4 e5 dxe5 c5 b4 f6 bxc5 Kf7 g4 Nc6 g5 Ke7 g6 Nd4 Qd2 Nf5 Qd5 Nd6 Qd1 Nf7 gxf7 Qb6 Qd5 Qc7 Qd1 Qd8 h4 d5 a4 b5 c4 g5 c6 g4 e6 Kd6 h5 Kc5 e7 Kb4 e8R g3 e3 d4 h6 g2 c7 d3 f3 d2+ Kf2 Be6 c8Q Qd6 c5 Bc4 c6 Ne7 c7 Qc6 Qb8 Rg8 Nh3 Nd5 Nc3 Rg3 Ne4 Nc3 Nf4 Rh3 Bb2 Bc5 Qb1 d1Q f8R Qd3 Kg1 Nd1 Nh5 Qb3 Ra3 Qa2 Rd3 Bd4 Bc3+ Ka3 Neg3 b4 Ne4 b3 Nc5 b2 Re4 Qb5 Qa1 b1Q Nd7 Qf5 Rg8 Qbb5 Qd8 a6 a5 Rb8 Qc8 Qc6 Qe8 Rb1 Qf7 Bc5 Ra8 Rc1 Qb1 Be7 Qb5 Ra1 Qg8 Qb6 Rd2 Bd5 Nb8 Nb2 Kf2 Bb4 Be5 Be6 Bd3 Qd6 Rb1 Qd7 Rdd1 Bd2 Bc3 Qd6 Bc2 Bc1 Qf1 Bc4 Rd3 Qdd7 Ba4 Nd1+ Ke1 Qd6 Be8 Qc6 Nd7 g1Q Nf4 Qfb5 Nh5 Nb2 Ke2 Qgg5 Kf2 Qgf5 Kg1 Nd1 Bb2+
1Bbq4/b1nB2Nr/bPQ1P1p1/2ppn1P1/1B1P1R2/4K1P1/p1Q1R2N/B2r2k1 b - - 0 1 illegal: No proof kernel
bR3nkr/2BQP1pR/2B1RpP1/2Nqn1r1/2Qpp3/2P1N3/Pb1R1P2/3K2b1 b - - 0 1 illegal: No proof kernel
1KQ2rQ1/4PQ1N/b3n3/ppq1P3/PB3np1/Rr2Q1p1/NPB1qbP1/6kR b - - 2 3 illegal: Other
2QR3n/6N1/Q1p2kqp/Q4r1P/1Q1rPBpP/6P1/K1PpB2r/bNRnq3 b - - 0 1 illegal: No proof kernel
1N1r4/p3PrN1/2B1P1KB/2R2n2/2BbP1k1/P3Rb2/N1P1Pqbb/Q4r2 b - - 0 1 illegal: No proof kernel
1R6/3PnP2/N1Prk1Rr/pBpN4/BP6/n1B1P2P/K2b1RpQ/3b1b2 b - - 0 1 illegal: No proof kernel
5r2/Q2PK1pB/2Rp1N2/1PP2q1r/k1N3qP/4Pp1P/r1R3Nn/1b2B1R1 b - - 0 1 legal: proof: f4 b5 a4 h5 axb5 e5 fxe5 h4 c4 h3 gxh3 Bc5 h4 Be7 c5 Bf8 c6 Bc5 d4 d6 Ra6 Nd7 cxd7+ Ke7 Ra4 Ba3 Ra6 c5 Ra5 c4 Ra6 Bc5 dxc5 Rb8 Ra1 Ra8 Kf2 f5 Ke3 a5 Kf4 a4 b4 c3 e3 a3 e6 a2 h3 c2 b6 Qe8 b5 Qf7 b7 Rh5 b8R Bb7 Bd3 Bg2 Ne2 Qf8 Rg1 Nh6 Bd2 c1Q Na3 Ng4 Rc8 Nh2 Be1 Be4 Rc6 Qc4 Rc1 a1R Rc2 Ra2 Qa1 Qa4 Nc4 Qf6 Qc3 Rf8 Qa5 Qg6 Qc7 Kf6 e7 Ke6 e8N Kd5 Qa7 Qf7 Kg3 f4+ Kf2 f3 Nb6+ Ke5 Kg3 Bh7 Rc3 Qac4 Nf4 Rf5 Ng2 Rh5 Bg6 Qfd5 Nf6 Ke6 Bd3 Be4 Kf4 Qa4 Be2 Bb1+ Rc4 Qb4 Bd3 Qg5+ Ke4 Qa4 Kd4 Qc2 Bh7 Qcf5 Rc2 Qg3 Nc4 Qgg6 Na3 Qg3 Kc4 Qgg5 Kb4 Qgg4+ Ka5 Ke5 Kb6 Ke6 Kc7 Ke5 Ng8 Ke4 Nc4 Kd3 Rd2+ Kc3 Nf6 Kb3 Rc2 Rf7 Kd8 Rf8+ Ke7 Qd5 Qb8 Ka4 Qb6 Qdf5 Qa7+
3Q2qq/n1bn4/1r1N2P1/1PPbP3/K6b/2RPkBPB/2N5/nRBrq2N b - - 0 1 illegal: No possible last move
1q3rr1/2PkqBbB/4Pn1N/1PR1QPP1/bBRnn2P/7N/K3R3/2r2r2 b - - 0 1 illegal: No possible last move, all moves rejected
4K2N/P2PPn1B/4Q1b1/krb2P1N/p1n4R/PP2B3/R1r4N/Br1r1nq1 b - - 0 1 illegal: No proof kernel
r1n3n1/4b3/q1BPBB1n/pP6/K1P3R1/2PN4/PPRnn3/qr1kQN1R b - - 0 1 illegal: Other
bbn3bR/2bBp1nr/PPk1PPq1/2N3R1/1PB2P2/2KnR3/QN6/2Bq4 b - - 0 1 illegal: No possible last move, all moves rejected
q3N2q/B1PPnb2/p1N3bb/qP6/P1r3B1/2r1RP1K/BPRQ2R1/1kb5 b - - 0 1 illegal: No proof kernel
2qrQ2N/p4p1r/1BR2n1N/1B3P2/1k2PKbn/PPR1r2P/3P1n2/1R1N2b1 b - - 0 1 legal: proof: g4 b5 c4 h5 gxh5 Rh7 cxb5 Rh8 Qa4 d5 Qc2 d4 Qd1 d3 exd3 e5 Bg2 e4 dxe4 Kd7 Bf1 Ke8 Ke2 Kd7 Ke3 Kd6 f4 Kc5 b6 g5 h3 g4 h6 c6 b7 g3 h7 g2 Nc3 Nf6 Bb5 Nbd7 b8R Ne5 Nf3 g1N Rb1 Nd3 Nh2 Nf3 Qa4 Nh4 b3 Nf2 Rb6 Bg4 f5 Qc8 Bb2 Rb8 Rhc1 Bd6 Qa6 Kb4 Nd1 c5 Rc6 c4 Rc3 Bc5+ Kf4 Rd8 h8N Rb6 Rf3 c3 Re3 c2 Bd4 c1R Rc3 Rc2 Qb7 Rc1 Qe7 Rb8 Qe8 Rb6 Ne3 Re1 Nd1 Rb8 Re6 Re3 Rc6 Bh5 Ng4 Bb6 Nh6 Bg4 Ng6 Ra8 Qe5 Rh8 Qe8 Rh7 Nh8 Bc7+ Kg5 Bh2 Bb6 Bg1 Kf4 Qa6 Rd3 Rd8 Rdc3 Qc8 a3+
1K1R3b/R2r1Nb1/pP1Q1PN1/Bn3n2/1PP1PRBq/1Nqk2p1/P4q1r/8 b - - 0 1 illegal: No proof kernel
4N1n1/P1n3n1/4N1b1/1ppBQpPR/2Rb1P1P/2RrrP2/K2BqP2/4Nk2 b - - 0 1 illegal: No proof kernel
3Q3B/Kp1P2BP/1PR5/2PRrp1q/2b1k3/P1Pb4/1pn1R1rb/NB3Nr1 b - - 0 1 illegal: Other
1q3bR1/k2Bp3/2b4P/np1R1p1K/1P2R1rp/2PP1PNP/1BN3n1/1bBQ4 b - - 0 3 legal: proof: g4 c5 a4 b5 d3 g5 a5 d5 Bg2 h5 Bf1 Qb6 axb6 h4 Kd2 Rh5 gxh5 a5 Ke1 c4 dxc4 d4 c5 d3 Kd2 Ra7 Ke3 d2 Kf3 Rd7 Ke3 Rd3+ exd3 Bd7 Ke2 Bc8 Kf3 Kd8 b4 a4 b7 Kc7 c6 Kb6 c7 a3 c3 a2 h6 Ka7 Ne2 Nf6 Rg1 Nc6 Ng3 Bd7 c8R Nd5 Bb2 Ne3 Rd8 Na5 Na3 Bc6+ Rd5 Ng2 Kg4 f5+ Kh5 g4 b8B+ Ka8 Rb1 a1Q Bf4 Ka7 h3 Qa2 Nc2 Qa1 Qe2 d1B Bfc1 Qa2 Ra1 Qc4 Qe1 Qf4 Be2 Qd6 Bf3 Qb8 Be4 Qe5 f3 Qb8 Nd4 Bb3 Nc2 Ba2 Qd1 Bb1 Rd4 Ba8 Bc6 Bb7 Bd7 Bc6 Ne4 g3 Rd5 Ne3 Re1 g2 Ng3 g1R Ra3 Ng2 Re4 Ne1 Nh1 Rg4 Ng3 Ng2 Ra4 Kb7 Ra1 Nc4 Ra6 Na5 Ra7+ Kb6 Rc7 Ka6 Rc8 Ka7 Re8 Bg7 Rh8 Bf8 Rg8
1Bb3R1/R1QPNpPB/1n2q2p/2Pk2bn/pb2N2P/3r1P2/4pKRP/6N1 b - - 1 2 illegal: No proof kernel
Nk4B1/2b2KB1/1PR1RRP1/B2r2Pp/6PP/1b3pn1/qqr1NP2/Q1b1r2n b - - 0 1 illegal: Other
Q1r3nK/p2bb1Bp/3N1b2/1n1B1P2/2B2PNP/P2P1P1R/R1kn1b2/rq1R4 b - - 0 1 illegal: No possible last move, all moves rejected
1nn1B2q/P3prPN/RbbQq2p/3PPk1P/1nR4B/p4K1P/4rN2/2R3N1 b - - 0 1 illegal: No proof kernel
1Rn2B2/qpn2PP1/Q2pB3/b5pK/2P3N1/rPNk4/bBq2PP1/rbRN4 b - - 0 1 illegal: Other
1N6/b2R1qP1/p1R1Bn1N/4NPnp/1nQ1rP1P/p1K1B2b/Pp2P3/k2R2r1 b - - 0 1 illegal: Other
k2K3Q/1PBpN2P/2N2Bpp/2r5/PR4n1/nq1PpN1P/qr2B1P1/b1R4b b - - 2 3 illegal: Other
2R1QN1R/1P1p2B1/r1N2n2/1q1r2Rp/1PpPp1N1/2Pnp2b/2P2b1P/1K1B3k b - - 2 3 illegal: Other
1b6/4RP1P/4RP1Q/b4qk1/1bBP2r1/1nrPr1P1/2N3BB/1r1n1NQK b - - 0 1 legal: proof: e4 d5 b4 f5 exf5 a5 bxa5 g5 c3 d4 cxd4 g4 Nc3 h5 Rb1 h4 Ra1 g3 hxg3 h3 Nb1 h2 Ke2 Bd7 Ke1 Bc6 Qb3 Bf3 Qc2 Bg4 Qd1 Bh3 gxh3 Rh4 Na3 Rh7 Nb1 Rh8 f4 Kf7 Kf2 Kf6 Kg2 e5 a4 b5 h4 c5 h5 b4 a6 e4 a7 c4 d3 c3 a5 b3 h6 b2 h7 e3 a6 c2 Nf3 e2 Nbd2 b1R Ne1 Nc6 Ra2 Rc8 a8B Ba3 a7 Na5 Bd5 Bb4 a8Q Nh6 Bc4 Nb3 Ra7 Ng4 Re7 Rg8 Qa6+ Qd6 Rg1 Qe6 Kh1 Ne3 Bg2 Rg4 Nf1 Rc7 Bd2 c1B Nc2 e1B Qd6 Bca3 Qc1 Nd1 Be3 Ba5 Qc6 Bd6 Qb6 Qd5 Re6+ Kg7 f6+ Kg6 f7+ Kf5 Re7 Beb4 Bf2 Kg6 f5+ Kh5 f6 Qf5 Qb8 Rc5 Qf8 Bb8 Qg7 Re4 Qf8 Re3 Qh6+ Kg4 Nd2 Rc8 Re1 Rg8 Nf1 Rg6 Qg7 Kh5 Qf8 Rg4 Bg1 Kg5 Re2 Na1 Re1 Rb3 Re2 Rc3 Qb1 Nb3 Qa1 Rf3 R2e6 Re3 Be4 Bac7 Na3 Qa5 Nd2 Qf5 Kg2 h1R Nc2 Bca5 Bh2 Nb2 Qe1 Rh4 Qh6+ Kg4 Qf2 Rb1 Nf1 Nd1 Bc6 Bf4 Qg1 Bb8 Qg7+ Kh5 Kh1 Rg4 Qf8 Kg6 Bg2 Kg5 Qh6+
k4qNB/P3Pb2/2P1pP2/1Rr2p2/RPp2b1n/4r1PB/N1K1Qq2/B1Q5 b - - 0 1 illegal: No proof kernel
R2b4/nBB1N3/k1b1RqPK/3NqP2/1n2P2P/1QPq4/N1bP3Q/3rr1q1 b - - 0 1 illegal: No possible last move, all moves rejected
4R3/PBnrB2n/bqNPrPKQ/8/nP5P/3rPR2/Q1r2b1Q/2qNk3 b - - 0 1 illegal: No proof kernel
1br1rb2/N2q1P1n/PPB1bPK1/6R1/2q3Q1/N2pQ1RP/2q4P/R1n1Bk2 b - - 0 1 illegal: No proof kernel
3k3N/KB1P1N2/1PrB1Q1P/pb3qNQ/Pnb2rR1/8/1b2qPP1/2n2nR1 b - - 0 1 illegal: No possible last move
2KQ4/BPRn1PB1/bkn1QN2/1q2Ppr1/1b1PBr2/2q1R3/1b2PP2/5N1n b - - 0 1 illegal: No proof kernel
1q4n1/pRPB1rPR/1RbB3n/1Q2PPK1/1r1b3P/n2N4/3Q2Pk/q3N2b b - - 0 1 illegal: No proof kernel
1RRB4/pBK1n1rP/b1nQ1N2/r1B3kP/1P2P1b1/1PN1Q3/1Pnn2q1/4b3 b - - 0 1 illegal: No proof kernel
3b4/2rPBBQ1/1P3qP1/BPp2Q2/R1Nq2q1/1KP2nP1/2n1rn2/NkRr4 b - - 0 1 illegal: No possible last move
b4k2/B1R1qPrP/2B1R3/1NPn1n2/Q1P3p1/Q1qN1qP1/1Nn1rP1K/4q3 b - - 0 1 illegal: No proof kernel
QR3r2/qrB4P/1P1kBnbp/P3NP2/Qpnb1r2/P3N2P/6n1/1RK2B2 b - - 0 1 illegal: No proof kernel
1R3r1r/Pbq2N2/1PkPNP2/Q1ppQB2/Kb1nR1n1/Pr2B3/P3b3/2N5 b - - 0 1 illegal: Other
1b1BQ2r/1PRPn1P1/b1pKNP2/1PP4Q/qqp2R1N/4b3/1k2B3/1rR1n3 b - - 0 1 illegal: Other
KR3B2/p2PnkqP/6qP/3r4/N2P1PN1/RB1b1P2/1rp1Q1Qn/2n2Bb1 b - - 0 1 illegal: No proof kernel
3b3Q/2B1nrQ1/B3p1q1/5Npr/1RP1KPP1/4PBNP/3b2RP/b1k1rq2 b - - 1 2 illegal: No proof kernel
2r1B1r1/1K2Qpn1/P1nBPP2/3RPQ1N/2nk1B2/5P1n/P1n3bp/1R4qN b - - 0 1 illegal: No proof kernel
1KQn1R2/1p2bP1p/p1BP4/1q1P2k1/1r1P4/1PNRRPB1/2r2n2/2bQ2bN b - - 0 1 illegal: No proof kernel
1NK1bRBq/1Q2rP1P/np1PpN1R/3P4/1r1P4/1qQ5/2np1BP1/b3Nk2 b - - 0 1 illegal: No proof kernel
1n1Rq3/3k1PP1/r5p1/1pP1prP1/P3Pb1Q/K1N1Q2n/n2NQ1B1/2Bq2R1 b - - 0 2 illegal: No extended proof kernel
R3R1rq/p4q1N/2Qp1P1b/P4B1R/1p4b1/1PPKNq1b/kP1P1B2/6Qr b - - 2 3 illegal: Other
5B2/p3rR1P/Q3p1b1/3n1pNk/r2NP2P/1RQ2n1K/1rBP1PP1/1n1n2R1 b - - 0 1 illegal: Other
3BKQ2/PR2n3/1PPr1qpp/1N1n2RQ/P4PN1/pk3P1b/p2bBr2/3R4 b - - 0 1 illegal: Other
1bnRnN1r/3R1P2/P2p4/p2P2r1/k1p2K1B/1N1B1PNb/P1P2p2/Q1nQ4 b - - 2 3 illegal: No proof kernel
5k2/2Ppr1RP/2prNNKp/2RP1QR1/2b1P1np/3pBP2/2P3B1/n1Q1q3 b - - 1 2 illegal: Other
R1K2b1N/3R1NB1/2b1PPBp/1k2b2P/1p4b1/r1q1P1bQ/1Pn1QPrR/3n4 b - - 0 1 illegal: No proof kernel
1n1n2B1/Br1PpN2/P3P3/1PR2p2/2r2QRN/2pP4/Q1Pb3k/K1nRqq1b b - - 0 1 illegal: No proof kernel
1rQ2b2/P1b1Qk1r/1p2n3/RPb1Pp1N/5N2/p1RBnPK1/PBq1bP2/6R1 b - - 0 3 illegal: No proof kernel
6bB/pp5n/kp1BQ1q1/2p1PP2/1PPQ2Pr/1nNBKRR1/2NP1r1b/b7 b - - 0 1 illegal: Other
b4K2/p2Np1PQ/1Pp3B1/3nr3/PRP1P2N/Pqb2R2/4pB2/n1rk1nQN b - - 2 3 illegal: Other
bb1B1R1r/1Q1r2qp/p7/1B1B2qP/PP1n4/P2p1PNR/P1kp2N1/Qn5K b - - 0 1 illegal: Other
1b1q2N1/1p2QpNR/1P3P1p/k1N1n2P/1r1b3K/P1PQR1pP/2Bp3r/1n2B3 b - - 1 3 illegal: No proof kernel
bRrr1n2/kp1N3p/2p1Bn2/1Q6/bB2RQPP/1PPP1bp1/1N4P1/4KNbq b - - 0 1 illegal: Other
n3rB2/1q4Rb/3nQNrb/KQqpPp2/pp2pP2/PP1NP3/3P2R1/3kRB2 b - - 0 5 illegal: No proof kernel
8/bB4rp/qP3bP1/2KB2N1/PRB1rP1b/n1r3bQ/1N1P3P/k1R1B3 b - - 0 1 illegal: No proof kernel
1K1B3b/3r4/1N2BPRP/1nRb4/r1B1N3/3qB1P1/1rPnP2P/bQkr1n2 b - - 0 1 illegal: No proof kernel
NR1B4/3KP1Pr/1r1b2BP/Q1bb1PP1/1q1B1Bnk/6rR/5r1P/5nNq b - - 0 1 illegal: Other
1Q3qrk/PB4q1/4N3/K2NnP1r/1Pb3R1/2n1b1NP/2P1PBR1/2n2rNr b - - 0 1 illegal: No proof kernel
N1r5/1PBk2p1/2q1PP1n/K2b4/RrQ1RNR1/q4PR1/1bBPPb1q/6n1 b - - 0 1 illegal: No possible last move, all moves rejected
6b1/P1BPN1pr/bb1NQP1q/RNr4n/1pP2k2/4PB2/rP1RpK2/3N4 b - - 0 1 illegal: No possible last move
1k3br1/4nP2/pn3pBp/2P5/B2QR1Nn/2Pr1b2/P2RNPPp/K1BB4 b - - 0 2 illegal: Other
3b1b1R/pR3QpN/PnP1p1B1/P1RnK3/5RPk/Bn1N1Pr1/4P1q1/3r1b2 b - - 1 3 illegal: No proof kernel
2R5/1N1p3K/1b1nrP2/1P1RR1pp/q1qb1N1b/r2PBP1P/k1R1Q1P1/2nB4 b - - 2 3 illegal: No possible last move, all moves rejected
R2rqb2/1K3PpB/p1R4p/4N1P1/bP1P1BB1/1r2kBrP/P3n2Q/Nr5n b - - 0 3 illegal: No possible last move
R1q1B1bK/2p2q2/1nRp1rP1/2R2NR1/p1P1Nk2/1p1P2bP/PP2n3/2Q1B1r1 b - - 0 6 legal: proof: f4 g5 fxg5 h5 g4 f5 gxh5 Bh6 e4 Bg7 exf5 Bf8 Kf2 Kf7 Kg3 a5 Kh4 e5 f6 Ke6 h6 Kf5 Kh5 b5 g6 a4 h3 b4 f7 b3 h7 e4 Nc3 e3 Nf3 e2 Ne4 e1Q Rg1 Nc6 Rg5+ Kf4 Nh4 Nge7 Nf5 Nd4 Bb5 Nd5 d3+ Qd2 c4 Bd6 Kh6 Ra6 Kg7 Ne2 f8R Nb6 Rf6 Rf8 h8R Ra5 Re6 Rf6 Qc2 Be5 Rc6 d6 Rhh5 Qe3 Bd2 Be6 Be1 Bg8 Kh8 Qf3 Rd1 Qc8 Rd2 Nd4 Re2 Qf2 Re3 Ne2 Qc1 Qf1 Rc5 Qf2 Be8 Qf3 Nf2 Qd5 Rc6 Qf7 Re4+ Kf3 Reh4 Bg3 Re4 Rd5 Re5 Rd4 Ra5 Rh4 Ra8 Rg4 Ne3 Kf4 Ne4 Bh4 Rgc5 Rg1 Rhg5 Bg3 Nf5+
2R1q1R1/P2pPq2/k1q1r2N/P1n2P1b/N1rB4/3n1PP1/1NPK1b2/3B1Qr1 b - - 0 1 illegal: No proof kernel
b2b1b2/K5k1/n7/4R1NQ/1PPN1PBP/PqrpB1np/PRr1Pb2/4R3 b - - 0 1 illegal: No proof kernel
3B2q1/bp1P2B1/bk1PPKR1/3B4/b1PR1n1P/P1r1P1rp/1N4bn/3Q2N1 b - - 0 1 illegal: No proof kernel
4R1K1/np1p4/P3p2R/2r1k3/qbPPPrPR/1Q2BbNn/1PP1bN2/n2B4 b - - 1 3 illegal: No possible last move, all moves rejected
1Q1B2nB/2b2b1P/P1k1p1Bp/1rPRr1b1/n1p2P2/5K2/3PPNRP/r2qN3 b - - 0 1 illegal: No proof kernel
rn4k1/5q2/Qp1N1RpB/1P1P1rR1/7b/P1PKbBP1/nP1P1N1p/4q1Nb b - - 0 1 illegal: Other
2Q1bN1n/pP3pP1/Bp6/1Pr2R1b/1q1RqRr1/P1BP1PkP/4Nq2/3K3n b - - 2 3 illegal: No proof kernel
2B3Q1/1bR1KpN1/p2B2P1/6p1/Pp2PNpP/RrpkqPr1/1P3nP1/5Nb1 b - - 2 4 illegal: Other
1K6/2PNp3/3NPbB1/PR3P2/QPPBn1rr/3r1R1P/b1q2Q2/n2kr1b1 b - - 0 1 illegal: No proof kernel
q1Nr3q/R2pK3/N3N3/5p2/k1bBr1pP/2b3b1/2r1Prn1/QNB2rn1 b - h3 0 1 illegal: Lossy FEN conversion
q1r1rrN1/1P1n4/2p4R/5n2/2PpbpqR/3bpNR1/Q2B2K1/1q1kR1b1 b - c3 0 1 illegal: Lossy FEN conversion
3N4/1N1rp3/1Rp4q/1N1nKQk1/1r2PpP1/bNN1rb1r/B2qnn2/2r5 b - g3 0 1 illegal: Lossy FEN conversion
b3rB2/1pB2B2/2n3Pn/bB1rbQ2/q2pP1n1/2B2Rrr/N6p/nK4k1 b - e3 0 1 illegal: Other
KN2N2R/n4RR1/6q1/k1b1Q2r/3r1pPP/n1b2Q1p/Pr1q3n/q2b3b b - g3 0 1 illegal: No possible last move, all moves rejected
4RqNK/5rn1/Qbq3B1/1Nr3pN/P2k1Ppp/1b2n1PP/6r1/r1qq4 b - f3 0 1 illegal: Lossy FEN conversion
qb2K3/rb4rP/1r1k1p1n/1N3rPn/1pP2N1n/5B2/4p1P1/1q1qBQQ1 b - c3 0 1 illegal: Lossy FEN conversion
1qrb2N1/B1bR2rR/p1b1KQk1/4R1p1/b1pP1rn1/2N5/4B3/rn1Q1n1B b - d3 0 1 illegal: Lossy FEN conversion
n1n3r1/p2Q3p/BqR1pQ1N/8/1krr1Pp1/Rqb3B1/N1b1R1r1/1B3K1n b - f3 0 1 illegal: Lossy FEN conversion
4r1rR/1Bp2Rn1/2qBq3/Q1Nb1nKB/bPp5/b2kr3/2b2R2/1R1rq2N b - b3 0 1 illegal: Lossy FEN conversion
2rN4/nBb1K1p1/5nR1/nN1RB1Nb/2B1r1Pp/4k2n/1bQq1r1N/1b3r2 b - g3 0 1 legal: proof: e4 c5 d4 cxd4 b4 f5 h4 fxe4 b5 Qc7 b6 Qh2 h5 axb6 h6 b5 Bc4 b4 Bd3 Qxh6 Bf1 Qh2 Ke2 Kf7 c4 Ke6 a4 Ke5 c5 h5 c6 d5 a5 b5 a6 e3 Kf3 e2 c7 e1R a7 h4 Bb2 b3 Ra2 b4 Ba1 b2 Na3 b1B Qd2 b3 Qd1 b2 Qc2 d3 Qd1 Kd4 Qb3 e5 Qb5 d2 Qe8 d1N Qe7 Nc6 Bd3 Ne3 Bb5 Nf6 Bc4 Bh3 Qb4 Bd6 c8B Bc7 Qb3 Rf8 Bb7 Rac8 a8N Na7 Qa4 Bhf5 Qc2 Bg6 Nb5+ Kc5 Bb3+ Nc4 Ra6 d4 Rb6 d3 Re6 Nh5+ Kg4 e4 f4 d2 f5 d1N f6 e3 f7 e2 Nf3 Qd6 Nh2 Nf6+ Kg5 Bh5 Kf5 Qd2 Rc6+ Kb4 Ke6 Nf2 Ke7 Na5 Bc4 Nh3 Re6 Kc5 Rd6 Ng4 Rg6 Nf6 Rg1 Rf1 Rh1 Rf2 Rd1 Rfd8 f8N e1B Nh7 Rd4 Ng5 Rg4 Nd6 Kd4 Ndf7 Ke3 Nd8 Re4+ Kf7 Qe2 Rd5 Bc3 Kf8 Qd2 Kf7 Bb8 Nc7 Bd4 Nb5 Bc7 Rf5 Ba2 Rd5 b1R Bb2 Rbf1 Bc3 Bde5 Ke7 Bb1 Bb2 Bb6 Ba1 Bec7+ Be5 Bd4 Bc6 Bc3 Bb7 Bb2 g4
5n1B/q7/n1Rr1p1Q/2nnRN2/N1RNpP2/N2k3b/1qp3Br/1nb3Kn b - f3 0 1 legal: proof: e4 d5 h4 dxe4 c4 g5 b4 gxh4 b5 a6 Ne2 axb5 Ng1 bxc4 Qb3 c3 Qc2 Ra6 Qd1 Ra8 g4 Kd7 a4 Ke6 d4 Kd5 g5 e5 a5 b5 g6 c5 g7 h5 a6 e3 a7 Ke4 d5 c2 d6 f6 d7 b4 Na3 b3 Ke2 h3 Rb1 b2 Qe1 h2 Bh3 h4 Kf1 c4 Qa5 c3 Ra1 b1N Nf3 e2+ Kg2 e1N+ Kf1 Na6 Bh6 c1N Rg1 h1Q Bf4 c2 Qb4+ Kd3 Qa5 e4 Qg5 Na2 Nd4 Qb6 d8R Nac3 Rd6 Nd5 Rc6 Qb2 Qh6 Nge7 g8N Ng6 Bg2 h3 Ne7 h2 Nef5 Bd7 Bd2 Rd8 a8N Bg7 Bb4 Nf8 Nb6 Bc8 Na4 Rd6 Ne3 Bh3 Nef5 Nf3 Ra2 Ng5 Bd2 Nge6 Bc1 Qa1 Rb2 Rh7 Rb4 Qb2 Rbc4 Nec5 Qh4 Nfe6 Bh6 Bf8 Bg7 Be7 Qg5 Nf8 Bh8 Rh5 Qh6 Rh4 Ke1 Rh5 Bf3 Qg2 Rh1 Qg7 Bg2 Rh4 Rg1 h1N Kf1 Bg4 Bf3 Rh2 Rg2 Bh3 Kg1 Bd8 Rg3 Bb6 Rg5 Qa7 Bg2 Bc7 Nh4 Ba5 Re5 Bd2 Nhf5 Bc1 f4
1r3b2/n1n1Q2b/B2nNkN1/n1pR1p2/b2N1Pp1/Rp2b3/2R4r/K2BNq2 b - f3 0 1 illegal: Lossy FEN conversion
4KR1b/q1bN1p2/1Qk1Br2/q4pn1/2PpRp2/1N3pRb/rB6/bRQ2n2 b - c3 0 1 illegal: Lossy FEN conversion
1b1kbR1n/p1q1B2p/2Q3n1/4bK1p/1pP1n2r/6BN/5BBp/Q3N1Qn b - c3 0 1 illegal: Lossy FEN conversion
1Kn1q1q1/2Bb1n2/1np3nN/1r5b/k2NPPp1/q7/1RN3nB/1BQ4R b - f3 0 1 legal: proof: a4 b5 g4 a5 e4 h5 c4 hxg4 b4 axb4 e5 d5 e6 dxc4 Ke2 b3 Bh3 b4 Ke1 fxe6 Bg2 e5 Bf1 e4 Qf3 e3 Kd1 Bb7 Qf5 Ra5 Qd3 Rb5 axb5 Rh7 Ba3 e2+ Kc1 Rh8 Kb2 Bc8 Kc1 Bf5 Nc3 Bh7 Kb1 Kf7 Bc1 Ke8 Kb2 Bf5 Nb1 Bc8 Ra8 e1N Qe3 e5 Ra2 e4 Ra5 Bc5 Qd3 e3 Ra6 e2 Ra1 Be3 dxe3 Qe7 Ra6 Qd6 Ra1 Qd8 h4 g5 h5 g3 h6 g4 h7 g2 b6 Nd7 b7 Nb6 b8N Nh6 Bd2 c3+ Kc1 c2 Kb2 Nf7 Ra3 c1Q+ Ka1 b2+ Ka2 Bd7 Kb3 Nc8 Nf3 g1N Ne5 Nh3 Qc2 Nf4 Kc4 b3 Kc5 Neg2 Nbc6 e1Q Nd4 Ng6 Ra2 c6 Na3 b1B Bb4 b2 Ba5 Ke7 Bd3 Qg8 Bc7 Qe2 Qc3 Bc2 Bf5 b1N Rb2 Nd2 Bd3 Bb3 Bb1 Nc4 Nac2 N4b6 Qe1 Bbe6 Qc3 Be8 Qa3 B6d7 e4 Qa6 Qe3 Qa8 Qe1 Qe3 Qc1 Qea3+ Nb4 Nd8 Nf7 Qb8 Nh6 Nf7 Bh2 Kd8 Bg1 Kc7 Bh2+ Kb7 Bc7 Qa1 Nbc2 Ka6 Bh2 Ka5 Bc7 Ka4 Bh2 Qg7 Bc7 Rf8 h8B Qg8 Bhe5 Qa2 Bh2 Qa3+ Nb4 Nfe5 Qc3 Rf5 Qc1 Na7 Kd6 Bf7 Qc5 Qbe8 Nbc2 Rg5 Bd8 Nac8+ Kc7 N6h4 Qc3 Bh5 Kb8 Nf7 Bdc7 Ng6 Qd2 Ra5 Qc1 Rb5 f4
nrN2n2/rN4Q1/1Rk1r3/4qbb1/2pPr3/qR5b/B1b4P/q2BR1KB b - d3 0 1 illegal: Lossy FEN conversion
Q3nnRK/N1P3R1/1R1r1qQ1/p3q2k/3r2pP/1Np2B2/bB3bq1/5nn1 b - h3 0 1 illegal: Lossy FEN conversion
qnQnR2r/1n1R2Q1/2rqbB2/1K2bB2/2pP3P/1kN4r/rrn1R3/1Nb5 b - d3 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 c4 axb4 f5 d5 f6 dxc4 Bh3 exf6 Bg2 f5 Bf1 f4 e4 Kd7 Ke2 Kd6 h4 Kc5 a4 g5 a5 b5 e5 f5 a6 f3+ Ke3 c3 e6 g3 a7 f2 e7 g4 e8R c2 Ra5 f4+ Ke4 b3 Bh3 Kb4 Re6 f1N Ra1 c5 Rc6 f3 Bb2 c1B Rd6 g2 Kd3 f2 Rd4+ c4+ Ke2 g3 Ra6 Qd6 Ra1 Be6 Rd3 Ne3 Rd5 f1N Bg7 b2 Be5 Ne7 Ra2 Nc2 Bc3+ Kb3 Bg7 b4 Re5 Ne3 Rc5 N3f5 Rd5 Nec6 Bf6 Nd8 Na3 b1R Re5 Rb2 Nb1 Bg7 Raa5 Ra2 Rad5 Ra6 Kf3 Rc6 Ne2 g1R Ke4 g2 Rh2 Rh1 Nec3 g1Q Re2 Qg3 Bg4 Rh3 Qg1 Qf8 Rd7 Qd3+ Kf4 Nd6 Bf5 N6b7 Qg3 Qdd6 Ke4 Bf7 Re8 Be6 Bg5 Be5 Bf6 Kb2 Qg7 b3 Bg4 Ka1 Bf5 b2 Nd1 Ka2 Ndc3+ Kb3 Bg6 Na6 Bf5 Rac8 a8Q Nb8 Na3 b1R Qa6 Rb2 Nab1 Na5 Qa8 R8c7 Qa6 Ra7 Qc8 Nab7 Bg6 Bg4 Bf5 Qde7 Kd5 Raa2 Rf2 Qa3 Re2 Qa8 Bg6 Na5 Bh7 Rd6+ Kc5 Rc6+ Kb5 Nab7 Bg6 Be6 Bf5 Qd6 d4
n2b1N1B/1qQrrQn1/R2n4/b2p3n/1Pp5/3qkP2/B3b2q/1NR1KNr1 b - b3 0 1 illegal: Lossy FEN conversion
3RR2b/4Q3/2r2BNB/2pP1rrb/NpPnQ3/3kB1p1/b2q2n1/2qr2nK b - c3 0 1 illegal: Lossy FEN conversion
1rq5/rQRp3Q/1Pq1b1b1/q7/BBr1kpP1/2b5/1pB5/n1qnNKRN b - g3 0 1 illegal: Lossy FEN conversion
1Q1b4/1p2Nrk1/b3Pp2/b1QN1qn1/1pPp2Bn/QK1n1b1p/8/2R2rBR b - c3 0 2 illegal: No possible last move, all moves rejected
R2K2n1/1R2p1nN/1pp2p2/2P1k3/nBq1r1pP/B2n1br1/1N6/bBQ3B1 b - h3 0 1 legal: proof: b4 h5 g4 hxg4 b5 b6 f3 d5 e4 dxe4 a4 exf3 a5 Qd6 axb6 Qd7 b7 Qd8 b6 axb6 Kf2 Kd7 Ke3 Kd6 Kd4 g5 c4 g3 Bd3 c6 Na3 f2 Nf3 f1N Bb1 g4 Ng5 g2 Nh7 Na6 b8B+ Ke6+ Bd6 Qe8 Bb4 g1N c5 Ra7 Nc4 Ng3 Bca3 Nh5 Qc1 Ng7 Nb2 Ne2+ Ke4 Ra8 d4 Nc3+ Kf4 Qd8 Rd1 Na4 Kg5 Qd7 d5+ Ke5 d6 Qe6 d7 Qc4 d8B Bf5 Rd7 Be4 Rb7 Bf3 Bc7+ Kd5 Bc3 Nb4 B7e5 Nd3 Bcb4 Ra5 Bd4 Rb5 Be1 Rb4 Bg1 Ke5 Ra2 Qd5 Bd2 Re4 Bdb4 Qc4 Ra1 Ne8 Ra2 Bh6+ Kh5 f6 Kg6 Ng7 Ra1 Bd2 Ra2 Bc3 Ra1 Ne6 Kf7 Bd4 Ke8 Ng7+ Kd8 Bc3 Ng5 Rh3 Nh7 Rg3 Nd1 Bh1 Bb2 Bf3 Ra3 Bd4 Ra2 Nc3 Ra8 Na4 B2a3 Ba1 Nb2 Qc3 Kd7 Qc2 Kd8 Qc4 h4
4n1rq/2bBQ3/1p1QP2R/4Q1nK/Ppk5/1Nr1B3/1B1b1p2/1bbN1q2 b - a3 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 d4 exf4 g4 d5 Nd2 h5 gxh5 dxc4 Rb1 c5 Rxb4 cxb4 d5 c3 Kf2 Kd7 Kf3 Kd6 h4 Kc5 e4 g5 e5 f5 d6 c2 d7 g4+ Kg2 b6 h6 g3 Kf3 g2 h7 Nc6 h5 Bd6 h6 Nf6 Bc4 Rg8 h8B Ra3+ Bb3 Ne8 h7 Bc7 Nh3 g1B Bf6 Be3 Ba4 Rc3 Nb3+ Kc4 h8Q Bb7 Bb2 c1B e6 Ba6 Bd4 Bed2+ Be3 Ne5+ Kf2 Nf3 Qe5 Qb8 d8Q Ng5 Bd7 f3 Kg3 f4+ Kh4 f2 Kh5 f1Q Qe7 f3 Nf2 Bb7 Rh3 Be4 Rh1 Bb1 Rh2 Be1 Qdd6 Bed2 Nd1 f2 Kg4 Rd3 Rh6 Rc3 Kh5 Qd8 Q7g7 Qf6 Qge7 Qh8 a4
3N1n2/2qN2Np/1k4P1/q1R2b1r/n1KpPbB1/2p2q1R/3Q1Q1r/q3Qr2 b - e3 0 1 illegal: Lossy FEN conversion
Q1B1R2n/1n1r3B/3rn1NQ/P1r1q1N1/B5pP/3kN3/1pr1p1b1/b1n1K3 b - h3 0 1 legal: proof: b4 c5 d4 cxd4 e4 g5 f4 f5 exf5 a5 f6 axb4 a3 Qc7 f5 Qd8 g4 h6 a4 Rh7 Bf4 Rh8 Ra3 Kf7 Rg3 gxf4 g5 Ke8 g6 Ra5 Rg4 Ra8 Rg5 hxg5 c4 e5 g7 Kf7 a5 b5 c5 d5 c6 e4 c7 e3 Qc2 f3 Qb2 e2 Qc2 g4 Kd2 b3 Qd3 f2 Nc3 b4 Qb5 b2 Qc4 b1N+ Kd3 b3 Ne4 Nc3 Kd2 d3 Nh3 Na6 Qc6 d4 Nf4 Ne7 Qc5 Ncd5 Nc3 Ng6 Ne4 Qd6 Ng2 Ndf4 Qc1 Rh5 Nh4 Bb7 c8B Nc5 Bd7 Nfe6 Bg2 f1N+ Ke1 d2+ Kf2 d1R Qd2 d3 Qe3 d2 Qh6 Rc8 Ba4 Qe5 Rg1 Nh8 Ng5+ Kg8 Bd5 Bd6 Bc4 Bg2 Ba6 Nb7 Rh1 Rc2 Rg1 Bc6 Rg3 Bg2 Re3 Ba3 Re4 Bb2 Re3 Ba1 Re4 Bf3 Ng2 b2 Ne3 Bg2 B4b5 Nd6 Bc8 Nb7 Ba4 Rdc1 Rd4 d1R Rd3 Nd2 Rd8+ Nf8 Re8 Nb3 Re6 Rc7 Re7 R1c6 Re8 Rdd7 Ke1 Rcd6 Nf3 Kf7 Qf4 Qe7 Qe4 Nd8 Qa8 Kg8 f7+ Kh7 f6 Kg6 g8B Nc1 Nd5 Kf5 Ne3+ Kf4 Bh7 Rhd5 Ng5 Rc2 Qb8 Rdc5 Qa8 Nfg6 f8Q Nb7 Qh6 Nf8 f7 Ke5 Bb5 Kd4 Bc6 Qf6 Ba4 Ne6 f8N Qe5 Ng6 Kd3 h4
1Nb2q2/1rBrp1r1/1NBN2n1/1r3b1R/1B1pPb2/QbQ2Pr1/r7/1K2k2n b - e3 0 1 illegal: Lossy FEN conversion
5b2/1pRqBb1r/N2Npbn1/n5p1/pP1kQq2/r2P2QR/4r1RK/5N1b b - b3 0 1 illegal: Lossy FEN conversion
1qR2Bqq/1r3N2/2qp1rRR/P1nqR1r1/1kpP1b1K/RNQ5/b3n3/2n5 b - d3 0 1 illegal: Lossy FEN conversion
Bq2rqbB/1NQp4/1kr1B2B/2b2r2/R1r2NpP/nq1n2K1/6P1/B2q1b2 b - h3 0 1 illegal: Lossy FEN conversion
2Nr4/4r1Q1/pqkP4/B2N1nRB/PpKp2nb/1p3b1q/8/B1nqNN1b b - a3 0 1 illegal: No possible last move, all moves rejected
1q1bbr2/b3k1K1/q2B1n2/1Q1nB1NN/2Ppb2N/r5b1/PN3Q2/1R1r1b2 b - c3 0 1 illegal: Lossy FEN conversion
2R1RNKn/1pQ3bp/8/1N3rr1/1prnpP1P/NN6/1p4rQ/1rkbq1B1 b - f3 0 1 illegal: Lossy FEN conversion
3RkqR1/1K4b1/3r1pbR/R1b1rn1q/1pPn2pB/pP5r/1p1NN3/RB6 b - c3 0 1 illegal: Lossy FEN conversion
1B2nRR1/1P1q1b2/1r1b2b1/B1Np2r1/r1Pp2pK/3BN2n/3Nk2B/2n2r2 b - c3 0 1 illegal: Lossy FEN conversion
q4NQn/k1Bq1R2/r1q1b1Q1/Q2p3P/2pPN2b/5nq1/bb2rQ2/N4K2 b - d3 0 1 illegal: Lossy FEN conversion
1B5b/N2P1prk/1NpN1q2/3Bp2n/1Bb2pPQ/3QBK1b/q4n2/1q4r1 b - g3 0 1 illegal: Lossy FEN conversion
R1qqRK2/1k6/3Q2Q1/2PNQRqQ/2rrPp2/1b3r2/1Qp2rq1/6n1 b - e3 0 1 legal: proof: d4 e5 g4 c5 b4 g5 c4 b5 f3 e4 Bf4 exf3 Nd2 a5 Nb3 a4 cxb5 axb3 b6 c4 Bg2 Bc5 dxc5 Na6 b5 Nb4 a3 h6 axb4 gxf4 g5 h5 Bh3 Qc7 Bf5 Qd8 Bg4 hxg4 Kd2 f5 Kc3 d5 Kd4 Kd7 Ke5 c3 h4 b2 h5 b1Q h6 d4 h7 c2 g6 d3 b7 Kc7 b8R f2 g7 f1R Nf3 d2 Rh3 g3 Ne1 f3 Rh5 g2 Nd3 g1Q Nf4 Ne7 Kf6 f2 Kf7 Ng6 g8Q Nh4 Qg6 Qgg5 Kg7 Rf8 h8Q Be6 b6+ Kc6 b7 Ra4 Nd5 Nf3 Qh7 Ng1 b5+ Kd7 b6 Kc6 Ra3 Rc4 Raa8 Qb3 Qb1 d1R Qb2 Rdd4 Qh8 Qh3 Qh6 Qd6 Re8 Qdd8 b8Q Qhg2 Qe5 Kb7 Nc7 Qc6 Nd5 Qcc8 Qd6 f4 Qe5 Rh8 Qd6 Rh7+ Kf8 Re7 Qhh7 Bg8 Qh8 Re3 Qde5 Rf3 Qed6 Qgg4 Rf5 Qgg5 Qhh6 Rb1 Qh2 f1Q Qhh5 Qfg2 Qe5 Be6 Qd6 Rbf1 Qe5 Kc6 b7 R1f2 b8Q Q2g4 Qc1 Qg2 Qbd6+ Kb7 Qa1 Bd7 Qc1 Ba4 Qb2+ Bb3 e4
3b1nr1/n3PR2/p1bB1B1R/r1nq2Q1/N2pPK2/3q3P/1bN2b2/1k3bR1 b - e3 0 1 legal: proof: f4 e5 fxe5 b5 g4 h5 a4 bxa4 d4 hxg4 d5 f5 d6 g3 Bh3 g2 Bg4 fxg4 Bh6 cxd6 Bg5 d5 Bc1 d4 Kf2 Ke7 Kg3 Ke6 b4 Kd5 b5 Kc4 b6 g5 e6 d5 e7 d3 c3 a3 b7 d2 Nh3 g1B Qe1 Kb3 c4 Kc2 c5 d1B c6 a2 c7 Nf6 Nf2 Nc6 b8B Rg8 Qb4 Nd7 Qb6 Bg7 Qb7 Nf8 Nd2 Bb2 Nfe4 Bf2+ Kg2 g3 Kf3 g2 Qb6 g1B Nb1 g4+ Kf4 g3 Nbd2 g2 Nb3 Bh3 Rb1 a1N c8R d4 Nbc5 Qd5 Na6 Nb3 Bd6 Nc5 Qa5 Be1 Be3 Bgf2 Nc3 g1Q Na4 Bf1 h3 Qg6 Rg1 Qd3 Nb4+ Kb3 Nc2 Ka2 Qb5 Ba5 Rg7 Bd8 Rf7 a6 Bd2 Na7 Rc6 Rb8 Qa5 Rb5 Be1 Bg1 Bh4 Bf2 Qd2 Ra5 Bf6 Bc7 Qe3 Bd8 Qg3 Qh1 Qg5 Qd5 Na3 Bb3 Nc2 Bc4 Rb6 Bb5 Rd1 Bc6 Rb1 Bg2 Rg1 Bf1 Bde5 Nfd7 Bh8 Bb5 Rh6 Kb1 Bd6 Bc6 Bf6 Nf8 e4
1B1nbr2/3q1n2/pR1q1rP1/RQ1N1N2/Pp2qnB1/2nN1bKP/3k4/2b5 b - a3 0 1 legal: proof: c4 c5 g4 h5 e4 e5 b4 g5 f4 gxf4 g5 d5 bxc5 dxc4 Qg4 hxg4 Na3 Qe7 Rb1 Qd8 Rb6 f3 Rf6 Rh3 Rf5 Rh8 Rf4 exf4 Kf2 Ke7 d4 Ke6 c6 b5 d5+ Ke5 c7 Kd4 e5 Kc3 e6 f5 d6 a6 g6 b4 e7 g3+ Ke1 f2+ Ke2 f3+ Ke3 f4+ Ke4 g2 e8Q Nc6 d7 Bb7 c8N Bh6 Be2 f1Q h3 f2 Kf3 Qd1 Qe7 f1B Kf2 f3 Kg3 f2 Nf3 g1N Bd3 Ne2+ Kh2 Bg5 Rg1 Nh6 Qe8 Rh7 Qg8 Rf7 Bc2 Rf6 Qd5 Nf7 Ne1 Bg2 Nb6 f1Q Bd3 Qf5 Nac2 Bc8 Be4 Bf3 Bf4 Qe7 d8R Bd7 Qc5 Rc8 Bd5 Qee4 Bb8 Bd2 Qa5 Nf4 Be6 Be3 Rg5 Qdd3 Kg3 Qd6 Ba7 Rb8 Rh8 Rg8 Rhh5 Ncd8 Nd4 Be8 Bb8 Rf8 Nd3 Qb5 Bg4 Qbd7 Rb5 Bd2 Ne2+ Kc2 Rhd5 c3 Nd4+ Kd1 Rdc5 c2 Nd5 c1N Rb6 Be3 Nf5 Nce2+ Kh4 Nc3 Kg3 Ke2 Qa4 Bc1 Ra5 Kd2 Qc6 Kc2 Qb5 Kd2 a4
2n2N2/1p1QPqbR/2b2b2/KP4kp/Pp1qBqn1/3rB2b/1r1b4/3RN1B1 b - a3 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c4 d5 f5 dxc4 b5 e6 Qc2 exf5 Qa4 f4 Qb4 axb4 g4 Ke7 d4 Kf6 Kd2 c5 e4 c3+ Kd3 c4+ Kc2 h3 e5+ Kg5 e6 f5 d5 h2 d6 Nh6 d7 Nc6 e7 Na7 Bg2 Bg7 Ba3 f3 Ne2 f2 Rf1 h1B Bc6 f4 Nd2 f3 Rfd1 f1Q Nd4 f2 Bc1 Qb6 d8B Rg8 Ne2 Qd4 Be4 Bd7 Nf4 Nc8 Bb6 Ra3 Ng6 Bg2 Ne5 Bh3 Ng6 Bc6 Ba7 Rd8 Nf8 Rb3 Rb1 Qh1 Rb2 f1Q Bb6 Qf7 Nf3+ Kf6 Bf4 Qf1 Ne1 Qff2+ Bd2 Qf4 Be3 Kg5 Bg1 Kh4 g5 Ng4 g6 Kg5 Bc5 Bf6 g7 h5 g8Q+ Bg7 Ng6 Rd6 Qd8 Rd7 Nf8 Rd6 Kb1 c2+ Ka1 c1B Qd7 c3 Rf2 Rb2 Rf1 Qde5 Bce3 Rd3 Rf2 Qd4 Rg2 Re2 Kb1 Bd2 Kc2 Qff6 Kb3 c2+ Ka4 c1B Rf2 Qf7 Ka5 Bc3 Rg2 Rb2 Rg3 B1d2 Rg2 Kh4 Rf2 Qfd6 Rf6 Qf4 Rh6 Kg5 Rh7 Qdd5 Rb1 Bcf6 Rd1 Qd4 a4
1b1n4/5bPq/K2N4/1QRRQ1Pn/1Pp4p/5bk1/B1b2Rp1/1bqB2r1 b - b3 0 1 illegal: Lossy FEN conversion
2qRn3/1P5K/1b1n1PN1/Q4q1n/1Q4Pp/n1R1qp2/rBB1rQ2/qk5n b - g3 0 1 illegal: Lossy FEN conversion
1KQn3N/n3Q3/p1pr3p/b1p4q/1PpPqR2/PrN1N3/1q2k2n/2B4B b - d3 0 1 illegal: Lossy FEN conversion
Q1N2r2/2b2nK1/1rBrrnR1/R1r1bqP1/1pP1bqk1/3B2Bp/1P5p/4Q3 b - c3 0 1 illegal: No possible last move, all moves rejected
QR1N1b1B/1PprR1qq/2Pp2rp/8/1NQpPN2/1b6/bnn4n/n4k1K b - e3 0 1 illegal: Lossy FEN conversion
QBb2r2/nbk1pp2/1Rr4b/P2Rb1q1/1RpppP2/PB4q1/3Q2n1/2K2N2 b - f3 0 1 illegal: Lossy FEN conversion
3RN2K/QpPn2r1/bP3b2/rN3pNn/1p2qPp1/3Qk2B/2prb1Qn/8 b - f3 0 1 illegal: Lossy FEN conversion
1r1BKB2/n2Q4/4R2p/pr2bB1P/pp2QPp1/2p1p1PR/3nR1k1/5b1b b - f3 1 2 illegal: Lossy FEN conversion
2N4K/pnq1R1nB/R7/bk3R1p/1rpPnb1P/1NR3q1/2P1rp2/4rb1N b - d3 0 1 illegal: Lossy FEN conversion
3qrb1n/P2RRp2/1BpnPq1k/p3Qq2/1pPP1Bp1/5N1q/3K4/r1N2b2 b - c3 0 1 illegal: Lossy FEN conversion
3rqBnQ/R3b3/2p1N1b1/P2P3n/1PpPR1K1/rbn1N3/1q5p/1k2N2r b - d3 0 1 legal: proof: c4 a5 f4 e5 b4 exf4 h4 d5 e4 g5 exd5 gxh4 c5 a4 c6 bxc6 Bc4 c5 Bb3 axb3 Ke2 c4 Kf1 Qg5 Ke1 Qd8 Ke2 Kd7 Kf3 Kd6 g4 Ke5 a4 Kd4 g5 Kd3 g6 h5 g7 b2 Qf1+ Kc2 Ra3 h3 Rd3 h2 Qe1 h4 Re3 h3 Re7 Qe8 Qe3 Nd7 Re4 Be7 Re6 Ndf6 Qa3 Nh5 Re5 Bf5 Re1 Bg6 Kg4 f3 Re4 f2 Ne2 f1Q Qa1 Qf6 Nf4 c6 Rhe1 h1R Ne6 h2 a5 Rd8 Nc3 b1N Na4 Qb2 Nac5 Nc3 Nd3 Qa3 Bb2 f5+ Kf3 f4 Kg4 f3 R1e3 f2 Ne1+ Kb3 Rf3 f1B Rf7 Bf8 Ra7 Be7 Re5 Bfd3 Re4 Na2 Be5 Bc2 Bd6 Qc1 Qd4 Nc3 Qe5 Kb2 Qd4 Bg5 Bf8 Kb1 Qf6 Qb2 Qe5 Ne7 g8N Bb3 Nh6 Ng8 Nf5 Be7 Ne3 Rh7 Qb8 Rf7 Qe5 Rf3 Qh8 Ba4 Nc7 Na2 Nf1 Ra3 Ne3 Bb3 Ne6 Nc3 d4
3rq1RB/2p3PP/1qn5/2rN3k/1q2PpN1/b1PN2n1/bbqQ1R2/2qnK3 b - e3 0 1 legal: proof: f4 a5 g4 h5 b4 axb4 d4 e5 f5 exd4 Bh3 g6 g5 gxf5 Bg4 hxg4 Kf1 f4 Kf2 Rh6 Ke1 Rh8 h4 b5 a4 f5 g6 d5 h5 f3 h6 f2+ Kf1 g3 h7 d3 a5 d4 a6 b3 a7 b2 Rh4 d2 Rh1 f4 Ra4 d3 Re4+ Ne7 Nc3 b1Q Ba3 b4 Bb2 b3 Qe1 d1N Rh6 d2 Ra4 Nbc6 Rh2 Nf5 Rh4 Ba3 Nb5 Be6 Bf6 b2 Nc3 Ba2 Rh3 Qc1 Nf3 b1Q Ra6 Qb6 Na4 Qcb2 Bc3 Q2b4 Ne5 Ke7 Rh6 Kf6 Ng4+ Kg5 Rh2 Qe8 Nc5 Rd8 a8N Rf8 Rg2 Kh5 Bh8 Rd5 Nd3 Rc5 g7 Bb2 c3 Rg8 Rg1 Rf8 Kg2 Rg8 Kf3 g2 Rf1 g1B Ra5 Ng3 Rb5 Qa6 Rb8 Qab6 Rc8 Ne3 Qc1 d1Q Qd2 Qc2 Rd8 Nd1 Kg2 Qb8 Nb6 Qb7 Nd5 Q7b6 Rd6 Qe7 Rf6 Rd8 Rf8 Qe8 Rg8 Ra5 Ne1 Qc4 Kf3 Ne3 Nd3 Rb5 Rb1 f1Q+ Ndf2 Qfd1 Nd3 Q4b3 Qe1 Qdd2 Rd1 Qdc1 Qd2 Ra5 Rf1 Nd1 Kg2 Bc5 Rf2 Bca3 Kg1 Q3b4 Kg2 Ne4 Kf1 Rc5 Ke1 Ng3 e4
QB2B3/3p2p1/n2bkP1q/rq1RP3/1bBp1bPp/1np2K1P/Rrb1N3/8 b - g3 0 2 legal: proof: d4 e5 c4 exd4 e4 f5 b4 a6 b5 axb5 e5 bxc4 Nd2 c3 Ne4 fxe4 Ke2 Kf7 a4 c5 f4 h5 a5 b5 f5 b4 f6 e3 h3 c4 a6 b3 a7 b2 Rh2 b1Q Qb3 h4 Qb2 c2 Qb4 Bd6 Qb3 Na6 Ra2 Bb7 Ra5 Ne7 Bd2 c1B Qb6 Qb5 Rh1 Be4 Qb8 Ke6 Bb4 Bc2 Kf3 Nc6 Ne2 Rg8 Ra2 Na5 Qb7 Rb8 a8B Nb3 Ba5 Qe8 Bc7 Qg6 Qe4 Rb7 Bb8 Qh6 Qc6 Bd2 Qc8 Ra7 Be4 B2b4 Qf8 c3 Bg6 Rh8 Be8 Ra8 Nc1 e2 Ra5 e1B Ne2 Bd2 Qg8+ Kf5 Qd5 Ra7 Qa8 Ke6 Rg1 Bf4 Rh1 Qc6+ Rd5 Rb7 Ng3 Qb6 Bc4 Qb5 Ra1 Rf8 Bg6 Rc8 Ne2 Rc5 Bh5 Qc6 Bg6 Ra5 Ra2 Qb5 Be8 Qb6 Ra4 Nc1 Kg4 Ba3 Ba2 Qc6 Kf3 Rb2 Bc4 Bab4 Ra1 Nb3 Ra2 Qb5 g4
7Q/P2b2rq/r3P3/1Q1NkBR1/nN1npPq1/n2r2n1/1p1qP1pR/6K1 b - f3 0 1 legal: proof: d4 a5 g4 d5 b4 axb4 c4 dxc4 g5 e5 g6 hxg6 Qd2 g5 Qd1 g4 Kd2 f5 Qb3 e4 Ba3 Bd6 Ke1 Be5 Bc1 Ra4 Bf4 Ra8 Bg3 f4 dxe5 fxg3 Qa4+ Qd7 Qd1 Qd8 a4 Kf7 h4 Ke6 a5 b5 a6 g5 h5 c5 h6 b3 h7 b2 Qb3 g2 Qe3 c3 Qf4 b4 Na3 b1N Qe3 c4 Qc5 c2 Qe3 c1N Nf3 g1R Qd4 b3 Rh6+ Nf6 Qe3 b2 Nc2 c3 Nb4 g3 Nd2 c2 Qc3 g2 Nd5 g4 Nb6 g3 Nd5 Qd7 Qc5 Na3 Qa5 Nc6 Qd8 Na2 Rc1 Nc3 Qa5 Rd8 h8Q Na4 Nc4 Nd4 Rh2 Nh5 Nce3 Qh7 Nb4 Bd7 Ned5 Ra7 Rd1 c1Q Qb5 Kf5 e6 Qch6 Qg8 Ke5 Rd2 Rh1 Rc2 g1Q Rc5 Qg2 Qf8 Rg1 Qe8 Qh3 Qg8 Qg4 Qf8 Rb7 a7 Rb6 Qe8 Ra6 Qh8+ Qf6 Kd2 Qfg7 Bh3 Rg2 Ke1 Qg5 Kf1 Qd2 Qg8 Qgg5 Bf5 Qg4 Rh4 Rh2 Kg1 g2 Qf8 Ng3 Qh6 Rg8 Qf8 Rg7 Qh8 Rh3 Rh5 Nf1 Rg5 Rb3 Rc3 Ng3 Re3 Nh5 Rh3 Ng3 Rh2 Rd3 f4+
3B1b2/1rQ1n1R1/2P1rpnp/n1P4q/1B3PpP/6Q1/1pnk1BK1/Nrq5 b - h3 0 2 illegal: Lossy FEN conversion
r1b5/3rkNNp/p1K3Pn/3N4/PqQPpb2/N1n1Pqq1/6Bb/2r1r1B1 b - d3 0 1 illegal: Lossy FEN conversion
3bb1Nn/3b3k/Bn6/P1Rp2rP/2pp1pPK/3P1P2/rb1p3Q/b1qB3N b - g3 1 2 illegal: No possible last move, all moves rejected
B2r3B/1b1QK2R/qr1Nnn1R/5qN1/1p1pP2r/1QRq2k1/B5Qb/6nb b - e3 0 1 illegal: Lossy FEN conversion
n2rRQ2/Bq1r1p2/2NN3n/Qnr1RB1K/r2B1Ppb/2q5/kbR1N3/6r1 b - f3 0 1 legal: proof: d4 c5 b4 cxd4 g4 a5 Be3 axb4 Bc1 h5 e4 hxg4 Bb2 d5 Bh3 d3 Bf1 d4 Ba3 Be6 Bc1 Bd5 exd5 Rh4 Qf3 Rh3 Qd1 Rh8 a4 Kd7 c4 Kd6 h4 Kc5 d6 e5 h5 g5 d7 b5 h6 e4 a5 e3 a6 d2+ Ke2 b3 a7 Kb4 c5 b2 h7 g3 Kf3 g4+ Kf4 d3 c6 g2 c7 e2 c8Q e1B Qcc2 Qc7+ Kg5 Qc3 d8R Na6 Rh4 Be7+ Kh5 Nc7 Na3 b1N Re8 Nh6 Nc4 Na3 Ne2 g1R Nd6 Bd8 Rh2 Bh4 Qa2 Rg8 Re5 Rgc8 h8B Rd8 Qdc2 d1R Be3 d2 Rc1 Rac8 Qg6 Na8 Qg8 Rc5 Rc2 Ra1 Qf8 d1R Bg2 Bd2 Be4 Bc1 Bf5 Bb2 Re8 Ka4 Bhd4 b4 Qd5 b3 Rh3 Nc7 a8N Nab5 Nb6+ Ka3 Nbc8 Ka2 Ne7 Na8 Nc6 Rd7 Bg7 Rd4 Rh2 Ra4 Bgd4 Rad1 Rh1 Rcc4 Ba7 Rc5 Qe5 Rdd5 Bd4 Rd8 Rh3 Rd7 Re3 Rd8 Nc4 R5d7 Nd6 Na3 Na5 Rcc7 Rc1 Ba1 Re7 b2 Re8 b1Q Rc2+ Qbb2 Qb5 Rcc8 R3e5 Rc5 Rc1 Qbb3 Nc6 Bb2 Qa5 Qb7 Rc2 Nb5 f4
bNrb1B2/1p1Q3R/NQ1bnkRp/r4n1K/R2r1Pp1/1BN3Q1/4q3/3r2r1 b - f3 0 1 illegal: Lossy FEN conversion
1k1N3K/1B3q1R/pn1r1n2/1Rb2Nq1/Ppb3R1/1NpQ1b2/1q1Q1r2/b5BB b - a3 0 1 legal: proof: f4 c5 g4 h5 c4 hxg4 b3 e5 b4 exf4 bxc5 d5 Qc2 dxc4 Qa4+ Bd7 Qd1 Bc8 Kf2 Kd7 e4 Kc7 h4 f5 d4 g5 e5 b5 d5 c3 c6 g3+ Kf3 g2 e6 b4 h5 a6 h6 Rh7 e7 Bb7 e8R Nd7 d6+ Kb8 Qd2 Nb6 d7 Bc5 Ne2 g1Q Re5 Rf7 h7 Nf6 h8Q Qh2 Bg2 Ra7 Nd4 g4+ Ke2 f3+ Ke3 g3 Kf4 f2 Kg5 f1B Kg6 f4 Qh3 f3 Nf5 Rf8 Kg7 f2 Bf3 Be3 Rb5 g2 Qh7 g1B c7+ Ka8 c8B Kb8 Bg2 Bf3 Bb7 Bc4 Qg6 f1Q Qh7 Qc8 d8N Qc5 Qh3 Rf7+ Kh8 Rd7 Qh7 Rd6 Qh3 Bgf2 Rg1 Qd5 Bh1 Bc5 Rg5 Bfe3 Rg4 Qfg2 Qh7 Bh6 Qd7 Qf7 Qd3 Qe5 Be3 Qb2 Bg1 Bc1 Nd2 Qf4 Nb3 Qg5 Qe6 Ra8 Qee2 Ra7 Qed2 Ra8 Bd5 Ra7 Ba8 Re7 Bd5 Re2 Bb7 Rf2 Rb1 Qc2 Ra1 Bb2 Re1 Qb1 Re7 Ba1 Rc7 Qb2 Rd7 Qd5 Rh7 Qf7 a4
n1N3Qn/4R1Kb/p4r2/bq2Qr1N/1b2PpBp/1QR4q/2R2B2/bNk3n1 b - e3 0 1 illegal: Lossy FEN conversion
2qqk1bK/N3r2n/1rr1b2b/1R1r1NQR/1pP1N3/4qB1R/1B3R2/1R2r3 b - c3 0 1 legal: proof: d4 a5 e4 c5 b4 cxd4 Nd2 axb4 Nb1 f5 exf5 g5 Qg4 Bg7 Qd1 Bf8 g4 Na6 f4 gxf4 h4 Nb8 g5 Na6 g6 Nc7 Bd2 Ne6 Bc1 Ng5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 Kd2 b5 Kd3 d5 a4 h5 g7 e5 g6 f3 a5 f2 a6 h4 f6 h3 a7 h2 Nh3 e4+ Ke2 d3+ Ke3 d4+ Kf4 b3 Ke5 d2 Ng5 e3 Ne4 e2 Nbc3 e1R Qh5 d1Q Bb2 d3 Be2 f1B Qg5 d2 Rb1 Be6 Bf3 Rc8 a8R Qc1 Ra3 d1R Ra5 b4 Nb5 Rc6 Na7 Rh6 Rb5 Qe3 f7+ Kd7 Ra5 Nf6 g8R Bfc4 g7 Nh7 Rh8 Rg6 g8N Bh6 f8R Rd2 Bc3 b2 Rb5 Bcd5 Rf5 Ke8 Ne7+ Bg8 Rf1 h1Q Rf2 Qh3 Bd4 Rgd6 Bc3 Be6 Bd4 Nf8 Kf6 Nh7+ Kg6 Rb6 Rfe5 Qg4 Nf5 Rdc6 Re2 Qc3 Nfg3 Rdd1 Nc8 Qb3 Rf2 Bg7 Red5 Nf6 Rh3 Bd7 Rdc5 Qge6 Qh6 Qd3 Rch5 Qe3 Qg5 Bh6 Nf5 Nh7+ Qf6 Bf4 Kg7 Bg5 Kh8 Bh6 Na7 Bc8 Qg5 Qed7 Bg7 Qb7 Bd4 Bce6 Bf6 Qbc8 Bc3 Rh1 Be5 Rd7 Rg1 b1R Rc1 Re7 Bf6 Rd1 Bb2 Rd5 Rch1 Re1 Rhf1 Re2 Rb1 Re1 c4
5bB1/bN1r1r2/b1qB2NR/2r3R1/2Pp1k1n/N2r2NK/nQ6/Bn2qN1n b - c3 0 1 illegal: Lossy FEN conversion
3K4/2R2q1B/qQ2QQ1Q/2N2qq1/n1bQppP1/1nkrBN1R/p2r4/b4q2 b - g3 0 1 illegal: Lossy FEN conversion
2r1r3/B2N1r2/p2N3K/1R1p1q2/Q1RQ1Ppk/Bqr3N1/r1B1n2n/q6N b - f3 0 1 illegal: Lossy FEN conversion
4k2N/pnb1Nq2/1R1rpNr1/QBr5/Pp1R1Q2/1b2pp2/3B2R1/1Kn1R3 b - a3 0 1 illegal: Lossy FEN conversion
1Nq2kNB/q7/bNq1p2b/qBN2bn1/qPp4n/2QQK1Rr/8/Q1r2R2 b - b3 0 1 legal: proof: e4 b5 c4 f5 h4 fxe4 a4 d5 axb5 dxc4 Ne2 g5 Ng1 gxh4 Nc3 e6 Ke2 c5 f4 a5 d4 a4 g4 h5 g5 e3 g6 h3 b6 h4 f5 a3 f6 h2 d5 h3 b7 a2 d6 Qd7 g7 Nh6 g8N Nc6 b8N Nd8 Qd2 Nf5 Qe1 Nf7 Bd2 Ng5 Na4 c3 Nh6 c2 Ng8 c1Q Rb1 a1Q Nf3 Kf7 Kd3 e2 Rg1 h1Q Nb6 h2 Nd4 Rh3+ Rg3 Nh4 Nb3 Bh6 Bc3 Ra6 Qd2 Qa7 d7 e1Q d8Q Qf3+ Qe3 h1B Be5 Qg2 Qd2 Qed1 Ke3 Qgb7 Qd6 Be4 Bb5 Ra4 Bc3 Rc4 Qd3 Q1a5 Be5 Rc2 Bd4 c4 Nc5 Qc7 Be5 Ba6 Ra1 Qb1 Q2c3 Qc8 Bd4 Qba2 Rc1 Q2a4 Be5 Kg6 f7 Qh1 f8Q Kh7 Qff1 Bf5 Rd1 Qhc6 Bh8 Kg6 Ra1 Kf7 Qb1 Ke8 Qa2 Kf7 Rf1 Rc1 Qa1 Kf8 b4
B4Bqb/q2bp3/Nn4RN/6rQ/1R1k1PpK/N2n2B1/pq5B/r1q2qN1 b - f3 0 1 illegal: Lossy FEN conversion
1B2q1b1/1R6/2bp2NK/1R1Bb1r1/p3PpkB/1qbQ2nN/8/1NNrB1nq b - e3 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 d4 exf4 Nd2 c5 Nb1 cxd4 Kf2 f3 Kg3 Ke7 Kf4 Kf6 c4 a5 h4 g5+ Ke4 f2 b4 g3 h5 g4 Kf4 g2 h6 a4 h7 d3 b6 d2 b7 d6 b5 g3 b6 Ne7 c5 Nf5 c6 Ra5 c7 Nd7 b8N Qe8 b7 Bg7 Nc3 Ne5 Na6 Be6 b8B Nf3 c8N Rd5 Rh4 Rg8 Nh3 g1Q h8B g2 Ne7 Ng3 Nb4 Qh1 Nba2 g1B Bg2 f1B Rh7 Bd4 Rb1 Ng1 Qb3 d1Q Bd2 Qc2 Nc1 Qd3 Be4 Bg2 Be1 Qc2 Qb5 Qd1 Rb4 Qb3 Nb1 Bc3 Rh5 Rd1 Qd3 Bd5 Rb7 Ke6 Kg5 f5 Bf3 f4 Be4 Bgf6+ Kh6 Bc6 Rc5 Bfe5 Bf6 Rg4 Bh4 Rg5 Rcb5 Bf3 Bh7 Bfd5 Be4 Kf6 Bg2 Bg8 Ng6 Ke6 Bd5+ Kf6 Qd2 Kf5 Qd3+ Kg4 e4
3R1Nk1/pBp5/bN1N1br1/r1B1p1Q1/1pPrQ1q1/1p4N1/1K3nB1/1n1N3b b - c3 0 1 illegal: No possible last move, all moves rejected
3R1B2/1p1BQ3/3BB1np/1p1nn1Q1/1Bk1PpBp/2Nq2rQ/2b5/4Kn2 b - e3 0 1 legal: proof: c4 e5 b4 d5 cxd5 a6 b5 axb5 d6 Ra4 Bb2 Ra3 Bc1 Ra8 f4 Qd7 d4 Qe7 d5 Ra4 a3 Rc4 a4 Qd8 Ra3 Re4 Rd3 Rb4 Rd4 exd4 h4 g5 g4 Qd7 h5 Nc6 h6 Qe6 Nd2 Rc4 Ndf3 Rc2 Nh4 gxh4 g5 Nf6 g6 Qe7 g7 Rc3 g8B Bg7 hxg7 Qd8 Bd2 Re3 Bc1 Re5 fxe5 Nb8 e6 c5 d7+ Ke7 a5 Kd6 e7 d3 e8B c4 a6 Kc5 d6 c3 a7 c2 a8Q h6 Bd2 c1N Nh3 Qc7 d8B Na6 d7 Qa5 Bb4+ Kc4 Ng5 Qc7 Bh3 Ng4 Ne4 Ne5 Bg4 Ng6 Bde7 Qd6 d8B Bf5 Bf8 Nc7 Nc3 Nd5 Bde7 f6 Be6 Rg8 B8d7 d2+ Kf1 Be4 Qd8 f5 Rg1 Qg3 Bed6 f4 Qe7 Qd3 Kf2 Bf5 Qf1 d1N+ Ke1 Ne3 Qh3 Nf1 Rg3 Qd4 Re3 Bc2 Rd3 Qe3 Rd2 Qd3 Rd1 Nb3 Rd2 Na5 Rd1 Nc6 Rd2 Rh8 g8Q Nce5 Qgg7 Rg8 Qg5 Bb3 Q7e7 Ba4 Ra2 Bb3 Ra8 Bc2 Rd8 Bb1 Qh5 Bc2 Bf3 Nh8 Q5f5 Rg3 Bg4 Nhg6 Qh5 Qd4 Qhg5 Qd3 e4
qb4Qr/k2bNK2/n1p4r/2N1R1B1/n1pBpP1q/1rb1B3/4P1RR/2Nn4 b - f3 0 1 legal: proof: c4 b5 g4 d5 a4 dxc4 axb5 h5 g5 h4 g6 h3 Bg2 hxg2 Na3 fxg6 Nb1 g5 Ra5 g4 Ra4 Nd7 Ra1 Nb8 h4 Kd7 b4 a5 d4 g5 Kd2 e5 Kc3 a4 h5 e4 b6 Kc6 h6 Kb7 h7 g3 b5 a3 d5 g4 Kd4 c6 Ke5 a2 d6 Ra4 d7 Bg7+ Ke6 Bd4 Nc3 Na6 Rh2 Qh4 Kf7 Nf6 d8B Bd7 Nh3 g1Q Nd5 g2 Nhf4 g3 Be3 Ra3 Ne7 Ng4 Nd3 Bc3 Nc1 Rb3 Qd5 Qd1 Qg5 g1B Qg8 g2 Rb1 Kb8 b7 a1N Rb2 Qf1 Rd2 Qd1 Rd5 Qf1 Rc5 Ka7 b8R Qd1 Re5+ Qd4 Bg5 Ne3 Bh6 Nd1 Be3 Ra3 Rc8 Nb3 Rb8 Nbc5 Rb7+ Ka8 b6 Rb3 Rc7 Na4 b7+ Ka7 b8N+ Ka8 Rb7 Qa7 Rbb5 Qb7 Rg5 Qa7 Rbe5 Kb7 Rg3 Qa8 Rg6 N6c5 Na6 Ka7 Rh3 Bh2 Rg4 g1R Rg2 Bg3 Rhh2 Rf1 Nc8+ Kb7 Bdg5 Rh1 Ne7 Ka7 Qg7 Re8 h8B Bf4 Qg6 Rg8 Bhf6 Rh8 Qg8 Rh6 Rf5 Rh8 Bfd4 Bb8 Re5 Rb6 Nb4 Na6 Nbd3 Rh6 Nc5 Rb3 Qd8 Rh8 Qg8 Qg4 Rh4 Qg3 Rf4 R1h6 Rh4 Qg4 Rhh2 Qh4 f4
bQ2r3/q2q4/B1b2K2/3bN1n1/rk1pP1Q1/5nPR/B1RN1R1q/4qbB1 b - e3 0 1 illegal: Lossy FEN conversion
4rn2/N1Q2pr1/1N2Q3/4pB1p/1Rq1Ppnp/q1PR1rQ1/2B2r2/1K4Bk b - e3 0 1 illegal: No possible last move, all moves rejected
KQ3RB1/np3q2/1P1Q1rrb/1n2b1B1/pP4Qb/3q3N/N1kbr1b1/2R4N b - b3 0 1 illegal: Lossy FEN conversion
K2kRQ1b/4N2N/b2b2p1/1QR3rb/bQPqPp2/1nb4B/1B1q4/2nRr3 b - e3 0 1 illegal: Lossy FEN conversion
rRqB1R1b/bQp2q1k/6N1/nNP1n3/pPpN2r1/8/Q1b3q1/4KBqR b - b3 0 2 illegal: Lossy FEN conversion
1nb3r1/N1N2p2/1B1kn2b/p3r3/Ppp4R/1PR1R1R1/1Rpn4/1BK1Qqnb b - a3 0 1 legal: proof: f4 e5 c4 exf4 h4 d5 h5 dxc4 h6 gxh6 Nf3 h5 Ng1 h4 e4 Ke7 d4 a5 Kd2 h5 g4 c5 b3 b5 e5 h3 e6 f3 d5 f2 g5 h2 g6 b4 d6+ Kf6 d7 Ke5 e7 h4 e8R+ Kd6 g7 h3 Re3 Qb6 Nf3 Qa6 Na3 Rh5 Rb1 Re5 Ng5 Nh6 g8R Nf5 Bd3 Ng7 Qe1 Ne6 Rb2 Bh6 Bb1 f1N+ Kc2 c3 d8R+ Kc6 Nb5 Nd2 Rd4 c4 Rf1 h1N Rff3 h2 Rh4 Nf2 Na7+ Kd6 Rg3 h1B Rg7 Nd8 Ne6 Nh3 Nc7 Ng1 Rgf3 Ne6 Rgg3 Qb6 Kd1 Qd4 Kc2 Qf4 Kd1 Ne4 Bd2 c2+ Kc1 Qf6 Rc3 Qf5 Be3 Nd2 Bd4 Qh3 Rfe3 Qf1 Nc6 Ra6 Na7 Rc6 Bb6 Rcc5 Rg2 Rg5 Rgg4 Rg8 Rgg3 Re5 a4
5Br1/2nK3n/Qq1b2n1/PNq1R3/3NnkpP/2q3R1/B1p1r1R1/Nr3N2 b - h3 0 1 legal: proof: c4 a5 f4 e5 b4 axb4 g4 exf4 d3 d5 Bg2 h5 Bh3 hxg4 Bf1 c5 Bg2 Bd7 Bf1 Bb5 cxd5 c4 Nf3 c3 Ng1 Bc4 dxc4 Bc5 Bb2 Bd6 Bc1 Bf8 Kf2 Ke7 e4 Kf6 a4 Ke5 d6 f5 c5 b5 d7 g5 c6 f3 Kg3 f4+ Kf2 b3 a5 b4 c7 b2 c8N b3 Nd6 c2 Qe1 Na6 Nb5 Bd6 Ra3 Qc7 d8N Qc3 Nd2 b1Q Qe2 b2 Nb7 Re8 Nc5 Ne7 Ncb3 Nc7 Na1 Ng6 Qc4 Rhf8 Ne2 Rg8 Rg1 Re6 Rg2 g3+ Ke1 g4 Ned4 f2+ Ke2 Ree8 Qc6 Qc5 Kd3 f3 Qa6 Kf4 e5 Re7 Be2 f1Q e6 f2 Rc3 Ree8 e7 Qe1 Bf3 f1N Bd5 Qe5 Ba2 Qe1 Nc4+ Nd2 Ne3 Ne4 Nf1+ Ke5 Ra3 Qeb4 Bh6 Qb3+ Ke2 Qbc3 Bf8 Kf4 Rb3 Qc1 Ra3 b1R Rb3 Qb6 Ra3 Qcc5 Kd3 Qe1 Rb3 Ra8 e8R Qec3+ Ke2 Rc8 Re5 Re8 Ra3 Q3b4 Kd3 Qe1 Re2 g2 Rb3 g1N Rg2 Nh3 Rc3 Qa3 Kc4 Nhg5 Rd3 Nh7 Rdg3 Na8 Kd5 Qec3 Re7 Qcc5+ Ke6 Qac3 Kd7 Nc7 Re5 Nd2 Rh5 Re2 Re5 Ne4 h4
3kBbrr/1K1R4/1N3Br1/1n2b2Q/PpPn4/1B3pNB/4bn1q/3nqNR1 b - c3 0 1 illegal: Lossy FEN conversion
3r3N/N2qR1Q1/2b1BB2/P2B2q1/2rq1pP1/bBpR4/1k1Rnn1p/r1b2K2 b - g3 0 1 illegal: Lossy FEN conversion
3N1BNN/2qb2nP/1qb2k2/qBrRn3/1Q2RrpP/p1b5/1pR1K1n1/5R2 b - h3 0 1 illegal: Lossy FEN conversion
k3Bn1b/N5b1/2b1p2Q/2p5/pP2q1RK/B1rNq1rR/2n1bBP1/R2B3n b - b3 0 1 illegal: No possible last move, all moves rejected
1nqNR2B/6RK/rpr4p/5n1Q/1Pp3p1/2bk1bR1/2RNbnP1/2Bb1B1r b - b3 0 1 illegal: No possible last move, all moves rejected
1B2bb1Q/1k1bqp2/2r3rB/prr5/1nQ1PPp1/n1N5/1Q1R2QN/R3K2b b - f3 0 1 legal: proof: g4 c5 d4 cxd4 a4 b5 axb5 e5 g5 e4 g6 hxg6 e3 g5 Bc4 g4 Bd3 exd3 b4 g5 h4 d5 c4 Kd7 c5 Kc7 h5 a5 h6 d2+ Ke2 d3+ Kf1 g3 e4 d4 h7 Nc6 b6+ Kb7 b5 Nf6 Rh6 Ne5 Rh2 Qe7 Bb2 Nd5 Ra2 Nb4 Qb3 d1B Qc4 d2 Nc3 d3 Bc1 Ba4 Nf3 d1B Rd2 g2+ Ke1 Rb8 Rh1 Bd7 Nh2 Bf3 Rf1 Rg8 h8Q g1R Qg7 Bh1 c6+ Ka8 c7 Kb7 Qh8 Rg6 Qg7 Rc6 c8Q+ Ka8 Qe8 Kb7 Qh8 Rg4 Qh3 Rg3 Qg2 g4 Qd8 Rf3 Rg1 Rff6 Rf1 Rg6 Qe8 Bh6 Qh8 Bf8 Rg1 Rc5 Rf1 Rbc8 Rg1 R8c6 Rf1 Kb8 b7 Kc7 b8B+ Kb7 b6 Rb5 Qb3 Nc4 Rg1 Na3 Qc4 Ka6 b7 Kb6 Rb2 Ka6 Bh6 d2+ Ke2 d1R Rd2 Rc1 Re1 Rc2 Ra1 Kb6 Ke1 Be8 Ba7+ Ka6 b8Q Bd7 Qbe5 Kb7 Bb8 Rcc5 Nb1 Be8 Qb2 Rcc6 Qe2 R2c5 Nc3 Bb3 Qef1 Be6 Qc4 B6d7 f4
1n2kQ2/1p3bRK/qP6/3q4/pq1pP2n/Bb1N1BQR/5p1r/rNB1q1B1 b - e3 0 1 illegal: Lossy FEN conversion
bqN4N/bQ3b1Q/kppb4/rNq1Pr1N/p3pP1B/n2R4/4K1B1/3nR3 b - f3 0 1 illegal: Lossy FEN conversion
3N3r/1BpK3N/1B3pkp/1N2R2p/nB2pP1q/2P3q1/1qb4r/B1Q2B1n b - f3 0 1 legal: proof: h4 b5 a4 a5 b4 e6 bxa5 b4 h5 g6 a6 gxh5 a7 Bc5 a5 Bb6 axb6 d5 e4 dxe4 b7 Qd7 Ra3 Qd5 Rd3 Qg5 Rd8+ Qxd8 Ke2 b3 Ke3 e5 d4 b2 g4 f6 g5 Kf7 c3 h6 d5 Nc6 g6+ Kg7 d6 Nge7 d7 Qf8 d8B Rb8 a8B Rg8 Nh3 Bf5 Na3 b1Q Bb2 Bc8 Ng5 Nd4 Nb5 Bf5 Qc1 Nc8 Ba1 Nb6 Nh7 Qd6 Be7 Qb2 Rg1 Ne2 Rg5 Rbe8 b8B Ng3 Ba7 Nh1 Bb7 Na4 Bb6 Qdb4 Bd6 Qc4 Bb4 Rd8 Na3 Rd1 Nb5 Rh8 Be2 Rg1 Bd3 Rg2 Bf1 Bg4 Rf5 Bd1 Rg5 Bc2 Rf5 Kg8 g7 Kf7 g8N Rh2 Ne7 Kg7 Nc6 Kg6 Nd8 Qd4+ Ke2 e3 Kf3 e4+ Kf4 e2 Re5 e1Q Qd1 Qd3 Qc1 Kg7 Kf5 Qg3 Ke6 Kg6 Kd7 Qee3 Nf7 Qeg5 Nd8 Q5h4 f4
R7/rR1P2Nr/np2nqk1/8/1QnpP1bN/nQ3Nn1/1rBN4/1n1N2K1 b - e3 0 1 illegal: Lossy FEN conversion
8/2bK1R1N/k1N2N1N/1p1prn1Q/1rqQ2pP/1bB2nb1/1PR1q3/nN1n4 b - h3 0 1 illegal: No possible last move, all moves rejected
1n3BB1/3Q4/R1B2K2/1n1prbQr/2Pp2r1/P4q2/5Npn/1knB1QN1 b - c3 0 1 legal: proof: f4 h5 b4 f5 g4 a5 d4 axb4 e4 c5 exf5 cxd4 f6 e6 a3 Be7 Ra2 Kf7 fxe7 Kf6 g5+ Kf5 Bh3+ Ke4 Bf1 Kd5 Rb2 g6 Rb3 Kc6 Rg3 Ra5 f5 Ra4 fxg6 Ra8 Rg4 hxg4 Kf2 Kc5 Kg3 d5 Kf4 b5 Ke5 b3 e8Q g3 h4 g2 g7 b4 g6 b2 h5 b3 h6 Nf6 g8B Ng4+ Kf4 e5+ Kf3 e4+ Kf4 e3 h7 e2 g7 Kc4 Qd7 Qf8+ Kg5 Nh2 Nd2+ Kc3 Be6 b1R g8B e1N Be2 Nd3 Qf1 b2 Bd1 Qf3 Bf5 Ra1 Kf6 b1N Ne4+ Kc4 Qe8 Nc3 Qd7 Nb5 Nf2 Kc3 Bh6 Kb2 Bg7 Nc1 Bf8 Qd3 Bg6 Kb1 Be8 Ra7 Qc6 Rg7 Qd7 Nf3 Rh6 Nh2 Qf5 Rg4 Bc6 Bd7 Qg5 Bf5 Bf7 Rg8 h8Q Qf3 Qhg7 Rh8 Rg6 Rh5 Bg8 Ra2 Qd7 Rb2 Rg7 Rb3 Re7 Re3 Re8 Na6 Ra8 Nb8 Ra6 Re5 c4
3Nn3/1bb1rB1K/N2q4/1b2pNR1/Ppnr2P1/1np1N3/5n2/Q1Q2RRk b - a3 0 1 illegal: Lossy FEN conversion
6B1/3K2Bn/P1nN1Bb1/2p1bBr1/Q1Pp2q1/pp4nk/1q1Rr2Q/n2R3R b - c3 0 1 illegal: Lossy FEN conversion
1r5R/6B1/3R1nPr/3prnR1/Rk3pP1/nqN1BB2/n1rB1b1Q/3K3n b - g3 0 1 illegal: Lossy FEN conversion
1B1BRB1B/1p2n3/N2b2pR/pP1n1Rb1/p1b2pP1/3p1K2/rkQ4r/4q2R b - g3 1 2 illegal: Lossy FEN conversion
8/Nk3n1P/1nbNKbq1/1q5n/pP2B1PB/q1pBNQ1p/2p3rR/5R2 b - b3 0 1 illegal: Lossy FEN conversion
1r1bqnQ1/5BNp/1R2q3/k2b4/1rrBPpr1/1R1q1Pq1/5rP1/1RN1KB2 b - e3 0 1 illegal: manual, prior to last move e2-e4, black rook could not get to f2
2b2R2/q3rk2/1n2nPRp/b1Qp3b/2nnpPB1/1N4N1/bN1BP1R1/5b1K b - f3 0 1 illegal: Lossy FEN conversion
BBNr1n2/3n4/1q1bQq1r/p3R1pP/Pp2r2R/2NK1PR1/1pN5/1q1b1k2 b - a3 0 1 legal: proof: e4 c5 c4 f5 g4 fxe4 b4 cxb4 g5 d5 cxd5 h6 Qe2 hxg5 Qd1 g4 Ke2 Kd7 d4 Kd6 h4 b5 h5 e5 Bh6 g5 Bh3 a5 Nc3 g3 Nf3 e3 Kd3 e4+ Ke2 b3 Qd3 b4 Qc4 g2 Bg7 g1Q Ne1 b2 Bg2 Rh6 Rh4 Ne7 Nc2 Nd7 Re1 Ng6 Bh1 Qf6 Qc6+ Ke7 d6+ Ke6 d5+ Ke5 Bh8 Be7 Bf3 Ngf8 Bh1 Nb6 d7 Bd6 d8N Nbd7 Nf7+ Kf5 Bg2 Bb7 Qc4 Rd8 Qa6 Bc6 Qb6 Ba4 Qa6 Bc5 Nd6+ Ke5 Nc8 Bd6 Rh3 Kf4 Rg3 Qf7 Bd4 Qf6 Ba7 Bb3 Bb8 Ba4 Kd1 e2+ Kd2 e3+ Kd3 Bb3 Be4 Ba4 f3 Bb3 Na1 Bd1 Nc2 Qf2 Rh1 e1Q Qc6 e2 Rh4+ Ke5 Qc4 Qb6 Qb3 Qeg1 Qc4 e1R Qb3 Bc7 d6 Re2 Ba8 Re4 Rh2 Kf4 Qe6 Re1 Re2 Qh1 Re5 Re4 Rh3 Qe1 Rh4+ Kg3 Rg4+ Kf2 Rg1 Qg6 Rg3 Nf6 d7 Bd6 Rh3 Kf1 Rg3 Re8 d8R N6d7 Na7 Qg7 Rc8 Qg6 Rc4 Qf6 Nc8 Rd8 Rg4 Qh4 Rg3 Qhf4 Rd4 Qc1 Rc4 Qb1 Rd4 Re2 Rh4 Re4 a4
B1B1b3/4R1Np/2Bpr2b/1Qpn2nk/3Pp1r1/rpP3qp/1P2n3/NK3R1N b - d3 1 3 illegal: Lossy FEN conversion
1kRQ1n2/5p2/1p2BN1p/rB1rN2N/p2p1PpP/1n2r3/KP1RBbb1/n6q b - h3 1 3 illegal: Lossy FEN conversion
r4R2/2K1P3/BnPrQp1r/BrR1rr2/Pp1N4/1pQk4/3N4/q1b1B1n1 b - a3 0 1 illegal: Lossy FEN conversion
4q3/1Q5P/2NkP1q1/nn1Bn1Bq/q2pPK1b/Rb1r2QR/1nr5/rB2N3 b - e3 0 1 legal: proof: f4 a5 g4 h5 b4 hxg4 d4 axb4 d5 e5 fxe5 c6 Bg2 cxd5 Bf1 d4 Kf2 Ke7 Kg3 f5 h4 b5 c4 d5 a4 g5 a5 f4+ Kf2 g3+ Kf3 d3 c5 g4+ Kg2 b3 a6 b2 a7 b4 c6 d4 c7 b3 h5 d2 h6 Be6 c8B Nd7 h7 Qe8 Nh3 f3+ Kg1 g2 Kf2 g1R Ba6 Rg3 Nc3 b1N Qc2 d1N+ Ke1 b2 Na2 Bb3 e6 Na3 Kd2 b1Q Nc3 f2 Bc8 Qa2 Bg2 f1Q Bd5 Qf3 Nf2 Ne5 Ba6 Nb2 Bd3 Nb5 Rh3 Qa4 Na2 Kd6 Qc3 Be7 Nb4 Bh4 Nc6 Ne7 Bb1 Qf5 Qd3 Qfh5 Ra3 Rg8 Qc3 Rd3+ Ke1 g3 Bg5 Rc8 a8Q g2 Qb7 Ra8 Bc1 Rgg3 Bg5 Rd2 Qf3 Rc2 Nd3 Ra7 Kf2 Ra5 Na7 N7c6 Ne1 Ra6 Qf4 Na5 Nc6 Rgc3+ Qg3 Rd3 Bc1 Be7 Bg5 Bd8 Qe3 Bf6 Kg3 g1Q+ Kf4 Bd8 Bf6 Qgg6 Bg5 Bf6 Qg3 Be7 Bh6 Bh4 Bg5 Qb4 Ng2 Nac4 Ra2 Ra3 Ra1 Na5 Ne1 Qa4 Ra2 Nd1 Rb2 Ra1 Ra2 Nb2 Ra3 Rd1 Qg1 Rdd2 Qg3 Rd3 e4
BK6/Pb2nN2/Rb3R1p/2B3N1/nPp1PrNQ/3Qq2b/4kp2/nr4rr b - b3 0 1 illegal: Lossy FEN conversion
B1Q5/5rBR/1QN2N1K/q1kn1p2/Pp1pb1q1/2n3n1/2PP1p2/n2RqQr1 b - a3 0 1 illegal: Lossy FEN conversion
8/nnKp1B2/1n1QR3/2Qbb2r/pppPN3/RPB2kq1/r1R2P1n/r3bN2 b - d3 0 1 illegal: No possible last move, all moves rejected
2q1R3/N1pbrQ2/p3QBp1/2nB1N2/1Ppr1pkQ/P1Rb1r1n/5PKb/4q3 b - b3 0 1 illegal: Lossy FEN conversion
R2Q1BnN/P1b1r2B/4BrBb/rpk3bb/Pp1q3n/6PK/2R1p3/N7 b - a3 0 1 illegal: Lossy FEN conversion
3r1k1K/2p1n3/1rB2B2/R2P2QP/b1N1pP1r/q2pN3/B1nr2nB/q6R b - f3 0 1 legal: proof: g4 b5 a4 e5 axb5 h5 d4 hxg4 Kd2 exd4 c3 d3 Ke3 d2 Kd3 f5 e4 d5 Ke2 d4 e5 Qd5 Qc2 Qd8 Qe4 fxe4 Bg2 d3+ Kf1 Nh6 Bh3 Bc5 Kg2 Bd4 cxd4 Bd7 Kg3 Bf5 Bf1 Bc8 Kg2 Ng8 Kg3 d1Q Kf4 a5 b4 g3 h4 g6 e6 a4 Ke5 a3 b6 g2 b7 a2 e7 g5 h5 g4 b5 g3 b6 Qa4 Nh3 g1N Nf4 g2 Nd5 Qc2 Ne3 Qd1 Na3 Nh3 Nac4 Na6 b8B g1R b7 Nb4 Ba7 Bd7 b8Q Rh6 Qb5 Nf4 Bh3 Rb6 Be6 Nc2 Kf5 Ng2 Kg6 Qb8 Qg5 Ba4 Kh7 Qc8 Ba3 Qa6 Bd6 Rd8 Bh2 Qb1 Kh8 Rd1 Bd5 Rd2 Bc6+ Kf7 e8B+ Kf8 Bf7 Ne7 Bg8 Rb7 Bc5 Rb6 Bcd6 Qb2 Bde5 Qa3 Bf6 Qa5 Rab1 a1R Rb5 Q5c3 Ra5 Rab1 Ne5 Qca1 Ba2 Rbd1 d5 Re1 Nd1 Re3 Nc4 Rh3 Nde3 Rh4 f4
4rR1b/1KR4p/3p2qR/1pbr2R1/nkpPB2n/BN3n2/Q3P2P/1bN2n1b b - d3 0 1 illegal: Lossy FEN conversion
n1KbN1R1/3rQ3/1r2prq1/BpBn4/4kPpR/2PrP3/2b3Q1/4RQn1 b - f3 0 1 illegal: Lossy FEN conversion
8/R1P1KQ1b/nk1Q2bq/3pB1Qb/R5pP/pb1N2P1/p2R1nr1/6rB b - h3 0 1 illegal: Lossy FEN conversion
3K4/2Bp3b/Br1r1B1b/1q1kPbpQ/RpPqR3/1Q3n2/4qQP1/n1q2N2 b - c3 0 1 illegal: Lossy FEN conversion
2k4N/3RP3/q1p3n1/q1pr4/N1RPpN2/4P1bQ/1Kb1q2n/rQ1rQ1rB b - d3 0 1 illegal: No possible last move, all moves rejected
5n1q/3B2rr/q2NbR1R/1N4Pq/qrr1PpN1/5PR1/1BBK2p1/n6k b - e3 0 1 legal: proof: d4 e5 a4 exd4 Ra2 b5 axb5 c5 Ra1 c4 Qd3 cxd3 h4 g5 g4 h5 Kd2 Be7 Ke1 hxg4 Rh2 g3 Rh3 g4 Rh1 Bg5 hxg5 Kf8 Rh5 Ke7 Rh1 Ke8 b4 Ke7 c4 Kd6 f3 Ke5 c5 d5 c6 f5 b6 a5 c7 a4 b5 d2+ Kd1 Kf4 b7 g2 b6 Kg3 Bb2 f4 Rh6 a3 Rh7 a2 Rh6 Ra4 Rh4 Nh6 Ba3 Nd7 b8N Rc4 b7 Rh7 Nh3 Kh2 Bc5 g1Q Rh5 g3 Be7 Nf5 Bc5 Qh1 Bb6 Qh8 Bc5 Nf8 Na3 Be6 c8B Rb4 Rc1 a1Q Nc4 Qa6 Nc6 Rg7 Kc2 d1R b8R d3+ Kc3 d2 Rb6 Ne3 Na7 Re1 Nb5 d1Q Bd4 Nc2 Rh6 Na1 Bd7 Qda4 Ncd6 Rh7 Bf6 d4+ Kd2 d3 Bb2 Rg7 Rb1 Rc1 Nf2+ Kg1 Ng4 Qh5 Bh3 Kh1 Nh2 Rh7 Bf5 g2 Ng4 Rg1 Rc1 Rf1 Rc8 Rc1 Rcc6 Rcc4 Bg6 Qh2 Rh3 Rg7 Rg3 Q2h5 Rc5 Rh7 Rf5 Rg7 Rf6 Rh7 Ke1 d2+ Kf2 d1R Nf5 Qa7 Bde8 Qa8 Rf7 Rd2 Ke1 Rd7 Rd6 Qa2 Kd2 Re7 Bd7 Bd5 Re6 Qb7 Nfd6 Qba6 Bc2 Q2a4 Rh6 Be6 Rff6 Reg7 e4
4N1nK/n1rP1pr1/nB6/1n1PR1p1/pP4rk/2B4B/2RBQ3/q1bB2n1 b - b3 0 1 legal: proof: c4 d5 cxd5 e5 a4 h5 f4 exf4 d4 Nf6 g4 hxg4 d6 Bd7 d5 Bc6 Nc3 Rh7 Na2 Ng8 Nb4 Bb5 axb5 Rh8 Nc6 bxc6 Kf2 a5 h4 c5 e4 c4 e5 c5 h5 f3 Ke3 f2 Kf4 g3 Kf5 g2 e6 c3 h6 c4 b6 c2 e7 c3 h7 Nc6 b7 Na7 Qd4 Rc8 b8B Rc7 Nf3 g1N Bg5 c1N Nh4 c2 Qd3 Nce2 Bd2 c1N Rh2 Nb3 Re1 Nc3 Qe2 Nc5 Bh3 f1R+ Kg5 g6 Nf5 Rf4 Rg2 Kd7 Rh2 Qc8 e8B+ Kd8 Bb5 a4 d7 Na6 Ng7 Re4 Bc4 Ke7 Ne8 Ncb5 Bb3 Bg7 Bd1 Bd4 Bf4 Be3 Rf2 Bc1 Bd2 Rc5 Bbf4 Rc7 Bfe3 Rb4 Nd6 Qf8 Ne8 Qg7 Rg2 Qc3 Rh2 Qa3 Bb6+ Re4 Rf2 Qa1 Rh2 Nf6 Kh6 Rg8 h8B Rg7 Rf2 g5 Rf3 Kf8 Rc3 Rg4 Rc5 Ne4 Rc2 Ke7 Nd6 Kf6 Ne8+ Kf5 Rc6 Rg6+ Kh7 Rg8 Bhd4 Rg7+ Kh8 Nf6 Rc2 Ng8 B4c3 Kg6 Qf3 Kh5 Re5 Kh4 Qd3 Qa2 Qe2 Qa1 b4
R1r5/q1N4n/1qR5/1qRpRp1K/P1Q1pP1b/1k1Bb1p1/2r1P1q1/4BB1n b - f3 0 2 illegal: Lossy FEN conversion
2krBN2/2p2npb/3b1r1R/3P1p2/2Q1pP2/1R2K1R1/RB2Q1qP/2n3r1 b - f3 0 1 legal: proof: b4 b5 c4 h5 e4 d5 exd5 Bg4 cxb5 a5 a3 axb4 g3 h4 gxh4 bxa3 h5 Bf3 Nc3 Bg4 Nce2 Bxe2 d4 Kd7 Kd2 e5 d6 f5 d5 a2 b6 Ra3 b7 Rg3 h6 Rc3 h7 Ra3 Nf3 Nh6 Ng5 Qe8 Rg1 Nf7 Ne6 Bh5 Bb5+ Nc6 b8R Ra6 Ke3 Bg6 Bb2 e4 Rg3 Rg8 h8R Bh7 Qe2 Qe7 Rb6 Kc8 Rb7 Nb4 Be8 Nd3 Rb3 Nc1 Qc4 Bg6 Rh6 Bh7 Qe2 Qf6 Qc4 Be7 Nf8 Qh4 Qe2 Qh3 Qc4 Rb6 Qe2 Qg2 d7+ Kb8 Qc4 Bd6 d8Q+ Kb7 Qh4 Kc8 Qh5 Rc6 Rb1 a1R Qhe2 Rh8 Bc3 Rca6 R1b2 Rb6 Ra2 Ra6 Bc6 Rb6 Bb2 Rb1 Nd7 Rd8 Nf8 Be7 Rf3 Nd3 Qd4 Rg1 Be8 Rf6 Rg3 Bd6 Qc4 Nc1 f4
3k1rn1/1P1bB1Rq/3pPN1B/3bB1qn/Q1pP3R/5q2/6pn/B3bQK1 b - d3 0 1 illegal: Lossy FEN conversion
4b1QK/2qB2P1/Q2NQ1b1/r3Q3/pP1B1rN1/P4q1R/2kbb3/1n2bqnn b - b3 0 1 legal: proof: f4 b5 g4 h5 c4 bxc4 d4 g5 Bd2 e5 Bb4 Rh6 Nd2 Rb6 Ba3 Rh6 Nb3 Rh7 Rc1 Rh8 Rc3 Na6 Rg3 Nb8 dxe5 gxf4 g5 Rh6 Rg2 Rh8 Rg4 hxg4 Kf2 c5 e4 Ke7 h4 Ke6 h5 f5 h6 d5 g6 a5 g7 a4 h7 d4 Qe2 f3 Kg3 d3 Kf4 d2 Qd3 d1Q Bb4 c3 a3 c4 Rh5 g3 Bd6 f2 Na1 c2 Qc3 c1Q+ Qd2 c3 Bg2 f1B Ne2 c2 Rh1 Nc6 Rh6+ Nf6 Kg5 f4 Kg6 f3 Qb4 f2 Rh1 Ra5 Bf3 g2 Ng3 g1N Qc3 Nd4 Nf5 Be2 Qd3 f1B Bc5 Qc7 Rh3 Nb5 Nd6 Bd7 Bd4 Nc3 Qa6 Nb1 Bg2 Rg8 h8Q Ng4 Kh7 Nf2 Bf3 Nh1 Bg4+ Ke7 e6 Be8 e5 Qe3 Qc8 c1B Qa6 Qf3 Nc2 Bd2 Ne3 Bd3+ Bf5 Bfe2 Ng4 Qdf1 Bg6 Kd8 e7+ Kd7 Be4 Ke6 Bf5+ Kd5 e6 Bh5 e8Q Bb5 Nc4 Bfb4 e7 Rf8 Bd7 Ke4 Nd6+ Kd3 Qg8 Rf4 Kh8 Bg6 Qb8 Kc2 e8Q Be1 Qee6 Bbd2 Qbe8 Bbc4 Qe5 Bcf7 Q8e6 Be8 b4
n5nk/qB1Pr2n/PB1p4/1p1qN3/pPN4r/r1bRBn2/R3B3/2BK4 b - b3 0 1 illegal: No possible last move, all moves rejected
1k1Q1br1/1P2bQB1/2b1pq2/2n2P1R/1K1pP2r/1B3pN1/1p5Q/2bQ1Qn1 b - e3 0 1 illegal: Lossy FEN conversion
3rqN2/kp1B1n2/1QB2B2/Pp3P1n/3rPp2/N1r3Q1/p2b4/1N1q1N1K b - e3 0 1 illegal: Lossy FEN conversion
4b1b1/1rp5/1rrpQ3/p2rB3/P3pP1N/nN1QB1nQ/1bP1k2K/2B3Q1 b - f3 0 2 illegal: Lossy FEN conversion
7k/bP1p3q/q1b2bB1/3r3q/nB1nPp2/PB1P3r/2RN1Q2/1K1RN1rb b - e3 0 1 legal: proof: f4 a5 h4 g5 b4 gxh4 c3 e5 c4 b5 cxb5 exf4 Qc2 axb4 Qa4 Ra6 Qd1 Ra8 g4 h5 a3 c5 g5 f5 g6 f3 g7 Kf7 b6 b3 Bb2 c4 Ra2 c3 Ba1 b2 Qc1 h3 Kd1 f2 Kc2 f4 Qe1 h4 Bg2 f1R Qc1 h2 Bb7 h3 Nf3 Rg1 Qe1 Nh6 g8B+ Kg7 Be4 Qf6 Bd3 Bb7 Nh4 Bc5 Bgh7 Nf5 Qc1 Na6 Bc4 Nd4+ Kd3 c2 Kc3 Bc6 b7 Ba7 Bf7 Nc5 Ng2 Na4+ Kd3 Raf8 Qd1 c1B Bhg6 Rh7 Be6 Kh8 Qe1 Re8 Bb3 Re5 Qf2 Rd5 Ne1 Qd6 Nc3 b1Q+ Rc2 Bb2 Ne4 Bc3 Bc4 Qb5 Bb2 Qa5 Bb3 Qe5 Bc1 Ba1 Bb2 Qh5 Bc3 Qb6 Bb4 Qa6+ Rc4 Nf5+ Kc2 Bf6 d3 Nd4+ Kc1 Rg4 Rg1 h1B Rc2 h2 Nd2 Rg3 Bc3 Rg7 Rf1 Rh3 Bb4 Qh7 Kb1 Qh5 Be4 Rg1 Bg6 Qh7 Bc3 Rh4 Ba5 Bg2 Bb4 h1Q Nef3 Qh3 Re1 Bh1 Rd1 Qg4 Ne1 Qgh5 Qf1 Rh2 Qf2 Rh3 e4
3B4/7Q/bP1Rp2p/1PN1bRrn/pPn2q1P/4B3/B3pb1N/k1Kn1qr1 b - b3 0 1 illegal: Other
b2q1Q1n/1rq1pq1B/1P1r4/1K1P2b1/p2bPp2/1k1R1PB1/1NN2Nq1/1R1q1n2 b - e3 0 1 illegal: Lossy FEN conversion
qB2r1bN/5RQ1/pb1qpq2/5p1N/1pP1Pn2/1n1pkPR1/K2R2rP/1B4q1 b - c3 0 1 illegal: No possible last move, all moves rejected
3kRN1q/1qb2n2/1PprB3/Q3bP2/K4Ppp/B3p3/2Prr1b1/2Q1N1Rb b - f3 0 1 illegal: Lossy FEN conversion
r1BR4/1nq5/q4P1K/Ppp4N/rpP2Rq1/Qk1N2b1/nP5b/q1n1BbQ1 b - c3 0 1 illegal: Lossy FEN conversion
b1b2K1n/R1pP2r1/5pq1/3B1b1B/2PpP2q/1NN2Pk1/2n2b2/N1Q2rrB b - e3 0 2 legal: proof: h4 a5 c4 d5 b4 axb4 a3 g5 hxg5 d4 a4 e5 Ra3 Bg7 Rc3 Bf8 d3 Nd7 Be3 dxc3 d4 Nb8 d5 Bd6 Ba7 Bf8 Bd4 exd4 g4 Ke7 d6+ Ke6 d7 Ke5 a5 Kf4 g6 b5 g5 h5 g7 c2 Kd2 c1R Kd3 b3 a6 b2 a7 h4 g6 b4 Nf3 b3 Bg2 h3 Ne1 h2 Nc3 b1Q+ Nc2 b2 Bf3 Nc6 Bh5 Nge7 g8B Bh6 g7 Rh7 Qe1 f6 Bd5 Ng6 g8N Nh8 Ne7 Rg7 Qd1 Rb8 a8B Qf8 Qg1 Rf1 Bb7 Qe1 Na1 Qg8 Ba8 Bg5 Bb7 Bh4 Ba8 Na5 Nc6 Nb3 Na5 b1B+ Nc2 Na1 Nb3 Bg3 Bac6 Kg5 Ke4 Kh4 Kf5 Qe8 Bb7 Qg6+ Ke6 Kh3 Ba8 Bh4 Qg5 Bg3 Rg1 h1B Qc1 Rb5 Bdb7 Rg5 Bd5 Bh4 Rg3+ Kh2 Rd3 Rgg1 Bac6 Rg8 Ke7 Rg7+ Kf8 Be4 Ba8 Bf5 Bh1 Bg3 f3 Bf2 Re3 Kg3 Re6 Be4 Ra6 Beb7 Ra7 Bc6 Nb4 Bf5 Bb7 Nc2 Ba8 Na3 Nc2 Bd5 Nca1 Nc2 Bc6 Bde4 Ba4 Ba8 Bc6 Qd2 Be4 Qf4 Bd5 Qh4 e4
3n2NK/knP1PN2/3r2B1/q2pBQq1/1BpP2R1/4p3/Prp5/1Nnrb2b b - d3 0 1 illegal: No possible last move, all moves rejected
bB4K1/r7/1p1nrNb1/2PQR1P1/1b1rPp1q/B1Nn1Pkn/1p6/Q2N4 b - e3 0 1 legal: proof: d4 e5 dxe5 b5 a4 g5 axb5 Be7 b4 Nc6 h4 gxh4 b6 Nb8 b7 Na6 b8B Bf8 b5 c6 b6 Bg7 b7 Nh6 g3 Nb4 Bg2 Ng8 Ra6 Bf8 Rb6 axb6 Bd5 Na6 Bc4 Qe7 Bd3 Qd8 Bb5 cxb5 Kd2 Ke7 Ke3 Ke6 Ke4 d5+ Kf4 h5 c4 f5 g4 b4 Bd2 b3 Bb4 h3 B8d6 b2 b8Q h2 Be1 h4 Bdb4 d4 Bd6 d3 Bd2 h3 Qc2 Qh4 Ba3 Nb4 Qb7 Ra7 Qa4 Rh6 Nc3 Nf6 Qa5 Ne8 Qbd5+ Ke7 e6 Kf6 e7 Nd6 Be3 d2 e8N+ Kg6 Ke5 d1R g5 Kh5 Bf4 Kg4 Qa4 Rd3 Qd1 Rd4 Qa1 Be6 Bg3 Bf7 c5 Bg6 Ke6 Nd3 Be5 f4 Kf6 Be7+ Kg7 Bf6+ Kg8 Bg7 Nf3 Bf6 Rd1 h1B Ne1 h2 Nc2 Bg2 Rd2 h1N Ne3+ Kh3 Ned1 Bf3 Qc4 Ba8 f3 Kg3 Qd5 Bh8 Nf6 Nhf2 Qc1 Nh3 Qa1 Nf7 Bb8 Nd6 Qb7 Rh7 Qc6 Rhe7 Qd5 Re6 Nh7 Ndf2 Rd3 Be5 Re3 Nd3 Nf6 Rc4 Na2 Bc3 Re5 Bb4 Nac3 Rd4 e4
2bR2K1/1N1Pk1B1/2Pqr3/4pQ2/pPpN3n/P2ppN1r/2n5/b1Q3rR b - b3 1 2 legal: proof: h4 f5 e4 fxe4 Bb5 g5 Bf1 gxh4 a3 b5 Bc4 b4 Ba2 b3 Qf3 bxa2 Qg4 Bh6 Qd1 Bf8 c4 d5 d4 Kf7 c5 Qd6 cxd6 Ke8 Bg5 c5 Be3 c4 Bg5 Bh6 Bc1 Bd2+ Ke2 Bb4 Kf1 Bc5 dxc5 Nc6 Ke1 Nb8 Ke2 a5 Ke3 h5 Kf4 e5+ Kg5 a4 Kg6 h3 Kg7 h4 f4 h2 g4 h3 g5 d4 c6 Ba6 g6 Rh5 f5 Rh4 f6 Rh8 Bh6 e3 Nc3 Bc8 Nce2 Ne7 Nf3 Na6 Qc1 Nb4 f7+ Kd8 f8N d3 d7 Nc2 Ned4 Nf5+ Kf7 Nh4 g7 Rh7 Kg8 Ke7 Nfe6 Rb8 Rf1 h1R Nd8 h2 Nb7 Rg1 Rf2 h1Q Rh2 Ng2 Rh4 Qh3 Rf4 Qh5 Rf8 Qg6 Rd8 Nh4 Qd2 Rg2 Rh1 a1B Qd1 Rg1 Qc1 Kf6 Kf8 Ra8 g8Q Re7 Qd5 Re6 Qe4 Rb8 Qg4 Ra8 Bf4 Qh6+ Kg8 Ke7 Bg5+ Qf6 Qf5 Ng6 Rh6 Rd6 Rh1 Rb8 Rf8 Ra8 Na5 Bb7 Kh7 Re8 Rh8 Bc8 Bh6 Rg8 Nb7 Nh4 Qd2 Qe6 Qc1 R8g3 Bg7 Rh3 Rd8 Qd5 Kh8 Re6 Kg8 Qd6 b4
2Q5/B2nn1K1/BQpp1pPr/1r1R2q1/2p1pPP1/R2PB2k/1N1r4/3b1r2 b - f3 0 1 legal: proof: c4 a6 b4 d6 e4 Qd7 b5 axb5 e5 bxc4 e6 Ra4 Qb3 Ra3 Qd1 Ra8 h4 g5 Nc3 g4 Ne4 Bg7 exd7+ Kf8 Ng5 Bh6 N5h3 Bg5 hxg5 gxh3 Ke2 Kg7 Ke3 Kg6 Kf4 b5 d8B h5 a4 e5+ Ke4 c6 d3 b4 a5 h2 a6 b3 a7 b2 Ne2 b1R Ra3 f6 Qb3 h4 Nc3 Kh5 Be3 Kg4 Bdb6 h3 Nd1 Nd7 Nb2 Rh6 g3 Rb8 a8Q Rd1 Ba7 Rd2 Qb6 Ne7 Rg1 h1R g6 h2 Bh3+ Kh5 Kf3 e4+ Kf4 Ng8 Kf5 Ne7+ Ke6 Rb7 Rga1 Rf1 Kf7 h1Q Kg7 Rb8 Be6 Qh4 Ra5+ Qg5 R1a3 Rb7 Rf5 Kg4 Qb8 Kh3 Rd5+ Kh2 Q8c7 Nb8 Bh3 Bg4 Qc8 Bd1 Bf5 Nd7 g4 Rb8 Qcc7 Ne5 Bc8 Kh3 Ba6 Nd7 Qc8 Rb7 Qd4 Rb4 Qb6 Rb5 f4
R4B1b/pb3n2/1p5r/nQN1Pn2/P2kr1pP/1q1B2P1/5bN1/r1Qb2NK b - h3 0 2 legal: proof: b4 d5 a4 c5 c4 e5 f4 exf4 bxc5 dxc4 Ra2 h5 Ra3 h4 Rf3 h3 g3 Rh6 Rf2 Rh8 Rg2 hxg2 Kf2 Kd7 e4 Kc6 d4 f5 Ba3 g5 Qd2 b6 Bd3 c3 Ne2 g1B+ Kg2 f3+ Kf1 c2 Ba6 c1R+ Qd1 f2 Kg2 f1N Qb3 f4 Qd3 g4 Nd2 Bb7 Nb3 Bf2 Ng1 Bg7 e5 Kd5 c6 Rh6 c7 Nc6 c8Q Na5 Qcc2 Ra1 Bf8 Rc8 Nc5 Bh8 Qb5 Qc7 Qc1 Qf7 Nb3+ Ke4 d5 Rc4 d6 Rb4 Nc5+ Kd4+ Qc6 Qa2 d7 Qb3 Bd3 Rc4 d8N Rb4 Nh3 Rc4 Rg1 f3+ Kh1 Ne3 Rf1 Nf5 Qe8 Rg6 Qb5 Ngh6 Ng1 Nf7 Rd1 Rh6 Nde6+ Kd5 Qa6 Re4 Nf4+ Kd4 Qb5 Be1 Bd6 f2 Ng2 f1B Bf8 Be2 Rd2 Bd1 Rf2 Ne3 Rf6 Bf2 Rd6+ Qd5 Rd8 Nf5 Ra8 Qb3 h4
QR2Nr2/K3nnpN/1B2Bq1Q/5rP1/2pP2kp/4Nb2/P1P1r1b1/1n1q3n b - d3 1 2 illegal: Lossy FEN conversion
N1nBK3/3r4/1bQb4/p3Rp1r/2bpP1Pk/1NPn3p/2r2Pq1/N2Bb1Q1 b - e3 0 1 illegal: Lossy FEN conversion
2rbNqQK/2p1n3/1BRpQ1B1/p1PbB3/1R2Pp2/Pn1P2r1/1nnb2r1/2k5 b - e3 0 1 legal: proof: h4 g5 f4 gxh4 f5 b5 f6 b4 a3 b3 Nc3 exf6 Nh3 f5 Ng1 f4 Na2 bxa2 Kf2 Ke7 Kf3 Kf6 Kg4 Ke5 Kh5 Ke4 c4 a5 b4 f5 g4 d6 c5 h3 b5 h2 b6 f3 b7 f4 g5 f2 g6 Be6 g7 Nc6 b8B Be7 Nf3 Nb4 Bh3 f1N Nd4 Bd5 Bg4 Qf8 Bb2 Bd8 d3+ Ke3 Nb5 Nd2 Qc1 Ne7 Kh6 Nc2 Qd1 Nb3 Be5 Rg8 Ba7 Rc8 Rb1 a1B Bb6 Bc3 Nd4 Bd2 Re1 h1N Ne6 Nf2 Bh5 Bg2 Qc1 Bd5 Bg6 Nd1 Rg1 Nb2 Qf1 Bb4 Qh3+ Kd2 Rgc1 Nca1 Rc4 Nc2 Nd4 Bc3 Qe6 Bb4 Nf5 Bc3 Kg5 h5 Kh6 h4 Kh7 h3 Rb4 h2 Ng3 h1R+ Nh5 Re1 Nf6 Rg1 Ne8 Qf5 Rb5 Rg2 Rb4 Rf8 g8Q Rg3 Qg7 Rg8 Qgf7 Rg7+ Kh8 Qf6 Qg8 Qf8 Ba7 Rg2 Rb6 Rg3 Rc6 Rg2 Bb6 Bb4 Bh7 R7g3 Bf5 Nc4 Rb2 Kc1 Bh7 Bd2 Bg6 Nba1 Rb3 Nb2 Rb4 Nb3 e4
b2n2qR/P1ppN1P1/Q7/1qk3p1/p2PpR1N/1nr1BN1N/nK2Pb2/4n3 b - d3 0 1 illegal: Lossy FEN conversion
7n/2Q1b3/n1QNpPb1/B3PrQ1/BpPp2R1/PK1bnnr1/4k3/7Q b - c3 0 2 legal: proof: b4 c5 bxc5 f5 d4 g5 g4 a5 a3 a4 Nd2 Qc7 Nb3 axb3 gxf5 b2 d5 b1B h4 g4 d6 Qxd6 Ra2 Qg6 Ra1 Qg5 hxg5 Ba2 Rb1 Bxb1 Kd2 Kf7 Kc3 b5 e4 d5 f4 h5 g6+ Kf6 g7 b4+ Kb3 h4 c6 d4 c7 h3 Bd2 h2 Kb2 g3 Ne2 g2 Bc1 g1N Kb3 Ba6 c8Q Rh5 Qc7 Nh6 g8Q Bd3 Ng3 Nf3 Rg1 h1N Qgc4 e6 Q4c6 Nf7 Be2 Na6 e5+ Kg7 f6+ Kg6 Be3 Nf2 Ne4+ Kf5 Rg4 Be7 Qh1 Nh8 f7 Nd1 Bf1 Rg8 f8Q+ Nf7 Qfb8 Nh8 Qbd8 Rgg5 Bf2 Ne3 Qg8 Rh3 Bh4 Rg3 Qgd8 Kg6 f5+ Kh5 Nd6 Ba2+ Ka4 Be4 Bb5 Bc4 Qg8 Bcd3 Kb3 Rg1 Ba4 Rf1 Rg2 Rg3 Bg5+ Kg4 Qg7 Bf8 Bd8+ Kf4 f6 Bg6 Rg1 Be7 Rg2 Nf5 Rg1 Ke3 Qgh6+ Ke2 Qg5 Rh3 Rg4 Ne3 Q7b7 Rg3 Ba5 Nh2 Qb8 Rf5 Qbc7 Nf3 c4
6R1/N1N4P/2q2nrn/1nNPK2k/1Np3Pp/1R1q1q2/r3P2B/rn3R2 b - g3 0 1 illegal: No possible last move, all moves rejected
K3b1n1/2Q2NPq/p1R2r2/1Qpr3q/1pP4q/qP1p3k/Pr1PN2R/n1b4B b - c3 0 4 illegal: Lossy FEN conversion
1nB1NKR1/bqPb4/2rrQ1P1/2q3Q1/nPpnp3/3P4/2b3bP/k4NQ1 b - b3 0 1 illegal: No possible last move, all moves rejected
4b2K/RkPQP2R/4pNP1/n2r4/2RPp1nr/Bn2P3/4qr1p/2rb3Q b - d3 0 1 illegal: Lossy FEN conversion
7K/pP4p1/1PrpP1B1/b5Q1/r2N1Ppb/1pBP2q1/rnR3P1/2kNrn2 b - f3 1 2 illegal: Lossy FEN conversion
b1bk1n2/P2p1K2/P2Pn1B1/p5b1/Pp4Br/1P1bpNb1/2PRpNR1/8 b - a3 0 3 illegal: Other
5b1R/P2PpQk1/1B1p4/pK1b4/pPrPpbP1/1PN1P1q1/n5n1/1R4rq b - d3 0 1 illegal: Lossy FEN conversion
1B1r1N1r/1R5q/NqR2NBR/k6q/2pPrnb1/QQb5/4q2n/BK1Q3b b - d3 0 1 illegal: Lossy FEN conversion
2N4R/rqBR2Qq/1qBR2nn/R3Nk1Q/1npP2bQ/b5r1/7K/qn4R1 b - d3 0 1 illegal: Lossy FEN conversion
5qb1/B1B3r1/2B1nQ1R/2Q3Qn/2rbpP2/2NkQ1pn/Q1Rn2p1/1NK1n3 b - f3 0 1 illegal: Lossy FEN conversion
R6r/p1qqb3/4qN1n/1RBbQN1n/p2pP2k/Qn1K4/1R6/2BBB1N1 b - e3 0 1 illegal: Lossy FEN conversion
4KN2/Q1knNBq1/4Rqq1/4bN2/1RpP3n/Q1n1rbr1/1N2b1R1/2BbB3 b - d3 0 1 illegal: Lossy FEN conversion
1R1rBk2/3Br2n/KR1B2Q1/NQb1N3/1Ppnb2q/p4r1q/2Q1B3/3qnR2 b - b3 0 1 legal: proof: f4 b5 h4 g5 a4 gxh4 axb5 d5 c4 e5 cxd5 exf4 g4 f5 d4 h5 Kd2 a5 Kd3 c5 Kc4 a4 e4 a3 b6 f3 Kb5 c4 b7 f4 e5 f2 g5 h3 d6 h4 e6 h2 d7+ Ke7 d5 h3 g6 f3 d6+ Kf6 g7 Nh6 g8B Kg7 e7 Ra7 e8B Nc6 b8Q Nf7 Bf4 Bb7 Qc2 Ng5 Be6 Nh7 Nd2 Qh4 Be2 f1N d8R f2 d7 Ne3 Ngf3 f1R Ne5 Ng2 Nb3 Rf3 Na5 Bc5 Raf1 Kf8 Rc8 Ba8 d8Q Ne1 Qdb6 Re7 B6d7 Nd4+ Ka6 Be4 Qg6 Rg8 Rhg1 h1Q Qb5 h2 Rb8 Qg2 Bg3 Qgh3 Rg2 h1Q Rgf2 Rff7 Rf6 Qf3 Rfb6 Qfh5 Bd3 Qd1 Be2 Rf6 Ng4 Rf3 Bd6 Rh8 Ne5 Rg8 Qg2 Rh8 Bg6+ Kg7 Qg1 Rc8 Bge8+ Kf8 Qg6 Rd8 b4
k3r2N/2p4r/r3pB1n/QQB1K1Rn/N1Pp4/n3N2Q/3b1R2/q1Rb2Rb b - c3 0 1 legal: proof: d4 e5 dxe5 Ke7 h4 b5 a4 g5 axb5 gxh4 e6 Kf6 e7 Ke6 e8N d6 e4 Ke5 Bc4 Bb7 Be6 Bc8 Qe2 Kd4 e5 Be7 Qd1+ Kc5 Bh3 Bb7 e6 Bf8 e7 Bc8 Be6 fxe6 Ke2 Kb6 Ke3 Kb7 Kd4 h5 f4 a5 b4 h3 g4 h4 b6 d5 g5 h2 f5 h3 g6 a4 f6 a3 b5 a2 g7 Ra4+ Ke5 d4 f7 Qd7 Qd2 Qd8 Nd6+ Ka8 e8R Rh7 b7+ Ka7 b6+ Ka6 Nc3 Ra5+ Nd5 Nh6 g8R Bd7 Rg5 Bb5 Ne2 Bd3 Nc3 Be2 Re7 Bd1 Rhg1 h1N Na4 h2 Qc3 Qc8 Qh3 Ng3 Re8 Be7 f8B h1B Nf7 Bb4 Nh8 Nh5 Bc5 Bd2 Rf8 Qd7 Rb1 a1R Ne3 Qb5 Rff5 Qb2 Rf2 Qc3 Ba3 Ra2 Rc1 Qa1 Bb4 Ra3 Nc4 Rf3 Ne3 Rf8 Ba3 Re8 Bb4 Bd5 Be7 Bh1+ Bbc5 Ng7 Bf6 Nd7+ Kf4 Ne5 b8Q Nc4 b7 Na3 Ke5 Nh5 Qa8+ Kb5 Qa7 Kc6 b8Q Ra6 Qb2 Rb6 Qa5 Kb7 Qbb5 Kb8 Qc4 Ra6 Qcb5+ Ka8 c4
3K4/NBRBr3/1N3b1r/Q1Bp1knn/pP1R4/Q1np1Nrb/4q1r1/Q4N2 b - b3 0 1 illegal: Lossy FEN conversion
3r1n1b/2Rr3Q/pn4B1/2K2N1Q/NN3BPp/1r2R2Q/1pB1r3/qk1bN2q b - g3 0 1 illegal: Lossy FEN conversion
1q4qk/1p6/r1Rb4/BRp1q3/NpPRQQ1B/1b2nR1b/3K1N2/1r1BQ1r1 b - c3 0 1 legal: proof: g4 a5 d4 g5 h4 e5 dxe5 f5 b4 axb4 Rh2 Na6 Rh3 Nc5 Rh1 Ne6 Qd4 fxg4 Qd1 g3 Nf3 g4 Ng1 Ng5 hxg5 Ke7 Qd6+ Kf7 Qd1 Ke8 a4 Kf7 e4 Kg7 f4 h5 f5 c5 g6 d5 e6 d4 a5 g2 e7 h4 e8R g3 e5 h3 a6 d3 a7 h2 e6 Qa5 e7 Rh3 f6+ Kh8 g7+ Kh7 f7 Qb6 Ra5 Bf5 Nc3 Qb5 Kd2 Be6 Rc8 Rb8 a8R Qc4 e8Q Qd4 Be2 Bb3 Qe1 Nf6 Rc6 Qe5 Rb5 Ng4 Na4 Bd6 f8B Ne3 Be7 Rc8 Raa6 Ra8 Bd8 Rh5 Nh3 g1R Qf8 g2 Nf2 Rg5 Rab6 Ra6 Qf4 Rf1 Bh5 g1Q Bd1 Qg2 Rg1 h1B Bc7 Qg4 Rg3 Bg2 Rf3 Bh3 Bb2 Qc8 Ba1 Qb8 g8Q+ Kh6 Qe6+ Kg7 Qg6+ Kh8 Qge4 Rgg1 Bb2 Qg7 Bf6 Qg8 Bh4 Qe5 Be2 Qb8 Qa1 Rb1 Bd1 Bf8 Rd6 Be7 Rd4 Bd6 Rc6 Qg8 Qg5 Qb8 Ba5 Qg8 Qg2 Qb8 Qf1 Qg8 Ke1 d2+ Ke2 Qeg7 Qe1 Qb8 Nd3 Ng2 Qa3 Qe5 Qc1 Nf4+ Ke3 Ra8 Be2 Ra6 Nf2 d1Q Rg3 Qe7 Qcd2 Nd5+ Kd3 Qc1 Bd1 Qe5 Qg5 Qcf4 Rf3 Qff8 Qgf4 Ne3 Kd2 Qg8 c4
1B6/Nq1Nb1R1/b2RrB2/bp3R2/BQPpB3/4nBr1/4Rk2/K2n1rnr b - c3 0 1 illegal: Lossy FEN conversion
2R3Bk/KR1R3q/p1p1nB2/bqn1N3/1Q2Pp2/N1Nq1b1B/1R4N1/4r2r b - e3 0 1 illegal: Lossy FEN conversion
q1B1N1NB/n2BK3/3R3q/Nb5q/2r2pPB/Q1nR3k/rb5q/1N2n1nQ b - g3 0 1 illegal: Lossy FEN conversion
1nR3r1/rn2P2Q/qrQBR3/2BR2p1/2pPN3/b1p5/pp2K2N/N1k3B1 b - d3 0 1 illegal: No possible last move, all moves rejected
2r3N1/2p1Qb1n/BB1n2QK/NBnN1Q2/RpPkq3/Rq2r2P/5n2/5qb1 b - c3 0 1 illegal: Lossy FEN conversion
2r1qQ2/3B3k/qp4nR/1NB1B3/NP4pP/1r1b2Q1/1pRRNnK1/2rn1r2 b - h3 0 1 illegal: Lossy FEN conversion
3q2N1/R2Bn1Rr/1k2QqNb/2Bp2pK/1pP1r3/b2N2Q1/n3PpQ1/1R3b2 b - c3 0 1 illegal: Lossy FEN conversion
N2RB1br/2Q3qn/1q2Bb1R/1R4r1/BpN2KpP/p2kBB2/1P3q2/n1n5 b - h3 0 1 illegal: Lossy FEN conversion
2bq2qk/1BRNB2r/2KR1p2/3Rpn1Q/r2pPrp1/P1n5/1Br5/3BN1B1 b - e3 0 1 legal: proof: f4 a5 g4 c5 d4 cxd4 b4 axb4 f5 h5 gxh5 e6 Nh3 Ke7 f6+ Kd6 Ng1 Be7 fxe7 Kc6 Kf2 Kd6 Kf3 Ke5 e8B Kf6 Ke4 b5 c4 g5 h4 Kg7 h6+ Kh7 c5 g4 h5 d3 a3 d6 c6 d2 c7 b3 Bg2 b4 Nf3 b2 Ba4 b3 Nc3 b1R Nd5 b2 Ne1 Qf8 Nb6 Ra6 Nd7 d5+ Ke5 Bb7 c8R Nf6 Rc7 Kg8 h7+ Kg7 Qb3 d1Q Qb5 Qg8 Be3 Rc1 Bg1 Nc6+ Kd6 b1R Rh2 Qd3 Bd1 Rb4 Qa5 Bc8 h6+ Kg6 Rh4 Rc2 Rh5 Rf4 Rb1 Qd2 Rb6 Nd4 Qc5 Nf5+ Kc6 Ne4 Bh1 Nc3 Be4 Qd8 Bg2 Rf8 h8B Kh7 Bf6 Raa4 Be7 Kh8 h7 Rg8 Rg5 Rg6 Qa5 Qg8 Bh1 Rh6 Rh5 Kg7 h8B+ Kh7 Be5 f6 Qc5 Kh8 Rg5 Ne4 Bb2 Nc3 Qb5 d4 Qe5 Rh7 Qb5 Ng3 Rd5 Nf5 Rd6 Rf3 Kc5 Qh6 Rb8 Ne3 Ra8 Qhf8 Ra5 Rf4 Bb7 Qe8 Kc6 Qd8 Qh5 e5 Rad5 Nf5 e4
4K1R1/1q1BR1BQ/b3br2/2B4p/pP1r1N2/5RbN/P2pN3/qbkn2rN b - b3 0 1 illegal: Lossy FEN conversion
1B1n1bR1/Q1rnb3/2bn3r/1PN1k3/NPp2RB1/3qb2b/2R1RqQ1/K4R2 b - b3 0 1 legal: proof: f4 b5 g4 h5 a4 hxg4 axb5 e5 c4 d5 cxd5 exf4 h4 Kd7 d4 Kd6 Kd2 c5 Kc3 a5 e4 g5 h5 f5 h6 a4 h7 c4 Ne2 a3 Kc2 g3 Rh6+ Nf6 Qd2 g2 Rh2 g1B Bh3 f3 Nbc3 a2 Na4 g4 Nc5 f4 Nc3 g3 N3a4 f2 Bg4 f1N Qg2 f3 Bd2 Nc6 Bf4+ Ne5 Rd1 Nd2 Rf1 a1Q Rh4 f2 Rh2 Rg8 h8R Rg6 Rg8 Nd7 Rh4 Bb7 Rh2 Ke7 d6+ Kf6 d5 Qe1 Rh4 Nc6 e5+ Kf7 e6+ Kf6 e7 Ne4 e8R Rc8 Re7 Rh6 Re5 Qe2+ Kb1 Rc7 Ka1 Qd3 Rh2 Qa8 Re8 Nd8 Re7 Bc6 Re5 Ng5 Re2 Ne4 Rc2 Qa7 Re2 Nb6 d7 Be7 d6 Bf8 Rc1 f1B Rcc2 Be3 Rh4 Ne6 d8R Nd7 Rb8 Nd8 Rb6 Nb8 d7 Nd6 Qd5 Bh3 Qg2 N8b7 d8Q+ Be7 Kb1 Nd7 Qa8 Nd8 Ka1 Bf8 Ra6 Qb6 Qa7 Be7 Qh1 g2 Bg3 g1B Qg2 Qa5 Rb6 Qad2 Bh2 Bgf2 Rb8 Bg3 Rf8+ Ke5 Rf1 Ne6 Rg8 Nd8 Bf3 Bf8 Rf4 Bh4 Bg4 Bhe7 Qf2 Ne4 Rf5+ Kd4 Ree1 Rb7 Qg2 Qf2 Bb8 Rc7 Rf4 Ke5 Ree2 Nd6 b4
1B1r1qNr/1n2QB1k/B3r1Q1/RKn1qB1n/r3Pp2/1bB2Pn1/8/4R1Nn b - e3 0 1 illegal: Lossy FEN conversion
1B3qNQ/1QNBr1b1/Q4r1b/1qp1bqQ1/n1R1pPp1/4k1P1/7R/2Q2Kn1 b - f3 1 2 illegal: Lossy FEN conversion
rqb1k1nB/2RN1pqr/1P3N2/1n1Q3q/Ppp4N/2N4R/1Q1nQ2B/K7 b - a3 0 1 illegal: Lossy FEN conversion
1q1r3b/1Q2k1r1/1Rpb3n/3Q1Bn1/KRPp1r2/6B1/BN1P1NnB/n2Q3n b - c3 0 1 illegal: Lossy FEN conversion
1K2Qb2/Nb6/4prR1/RNnQ2Pq/nPp3Q1/5p1n/r1BrN3/2QbB2k b - b3 0 1 illegal: No possible last move, all moves rejected
Q5RK/2P1n1r1/p1q4Q/2b2Nn1/p1pPqn2/2R1N2B/1Rb3q1/BkBr1B2 b - d3 0 1 illegal: Lossy FEN conversion
1q1Rb1Nb/3rb2B/p1Q1nNp1/1Q6/k1pP4/2p4R/1Q2p1PR/2K1RrBn b - d3 0 1 illegal: Lossy FEN conversion
5r2/2pBK2Q/3pn3/R1Q1bBN1/N1Pp3R/q2P3p/Bb1Rqp2/B1qrk3 b - c3 0 2 illegal: No possible last move, all moves rejected
1r3q1b/2p3B1/2bpnkNQ/Rp2R3/4ppP1/1p1QrQ2/1K5P/NnBQ1B2 b - g3 0 1 illegal: Lossy FEN conversion
2Qq4/NBB1q3/bb1R3n/2rPp1qq/k2pP1R1/R5K1/1r6/R2q1NRR b - e3 0 1 illegal: Lossy FEN conversion
B2N4/2KnB2N/1R6/np1Prbbq/1Pp2k2/q3N3/q1BQn1RN/B1b2r2 b - b3 0 1 illegal: No possible last move, all moves rejected
b1N1nNnr/2p1b1n1/1QPq3R/2N4p/1N1Pp1r1/RB6/1R2Npkp/2KQ4 b - d3 0 1 legal: proof: f4 e5 fxe5 g5 h4 gxh4 a4 b5 axb5 Bc5 Ra4 Bb4 Ra1 Bf8 e4 Ke7 e6 d6 b3 Nf6 e5 Rg8 Bb2 Rh8 Bc3 Ng8 Bd4 Ke8 e7 Kd7 Bb2 Ke6 Bc3 Kd5 e6 Kc5 Be5 dxe5 Qh5 Kd5 Qd1 Kd6 e8N+ Kd5 c4+ Ke4 g4 a5 b4 f5 b6 f4 c5 a4 e7 f3 b7 h6 b5 h3 c6 h2 b6 a3 g5 a2 g6 Na6 b8Q Qd3 g7 Bf5 b7 Nb4 Ne2 Qd6 Nf6+ Kd3 e8N Nd5 Ne4 Ra3 N8f6 Be7 Nbc3 Bc8 Nd7 Ndf6 Nf8 Ra4 Nd5 Ne8 Bh3 Rd4 Be6 Rb4 Qa7 Rd4 b8R Bb7 Bf7 Ba8 Rb2 Ra4 Qb6 h5 Rg1 Rd4 Rg6 Rb4 Rh6 Ra4 Ng5 Rg4 Nge6 Ke4 Nb4 f2+ Kf1 Kf3 Nc5 Ngf6 g8N e4 Bd5 Qd7 Bb3 Qd6 Rc1 a1N Rc4 Bd8 Ne7 Nc2 Nc8 Nd4 Rc1 Ng8 Ra1 Be7 Ra3 Nf5 Nc1+ Kg3 Ke2 Ne3 Qf1 Nc2 Kd1 Nd4 Ne2+ Kf3 Qg1 Nf5 Kc1 Nfg7 Qd1 Kg2 d4
2kB1rb1/4q3/3br3/q1Q2B2/r3rRPp/1n1R4/1PQbRK1n/2QB1N1B b - g3 0 1 illegal: Lossy FEN conversion
RQQ3K1/P1n1BR1r/6n1/7B/1Pp1BNBq/n1br2Rp/n1Q2k2/n5n1 b - b3 0 1 illegal: Lossy FEN conversion
R2b1Q1b/1n6/1pNQK2P/nbQr2r1/1Pp1R2N/5N2/B1br1R1p/k1q3N1 b - b3 0 1 illegal: No possible last move, all moves rejected
1NQ3N1/n3R1K1/nR3QR1/3q3q/1PpP3R/2rbB1Np/k2bbq1N/5q2 b - b3 0 1 legal: proof: c4 a5 g4 g5 f4 gxf4 h4 e5 a4 b5 axb5 d5 cxd5 Kd7 g5 Ke8 Bg2 Ra6 h5 e4 Bf3 Rg6 hxg6 exf3 Kf2 Ke7 e4 Kd6 d4 h5 b6 f5 g7 c5 g6 a4 b7 h4 Qe2 h3 Nd2 a3 Qf1 a2 Ne2 Na6 b8N Ne7 g8N Nc6 g7 Na7 Ng3 Qg5 Rh2 Qh5 Rg2 Bd7 Qc4 Bb5 Ndf1 Be7 Qc2 Be2 Nh2 Bg5 Be3 Rh7 Rf1 a1Q Qc1 Qa2 e5+ Kc7 e6 Kb6 d6 Kb5 e7 Kb4 e8R Qd5 d7 Kb3 d8Q Ka2 Qf6 Rh6 Qb6 Rc6 Re7 Rc7 Qf6 Rc6 Ke1 f2+ Kd2 f3 Kc3 f4 Qc2 Bd1 Kd3 Bh6 Rfg1 f1Q+ Re2 f2 Rb7 f3 Rb6 Qd8 Ke4 Qe1 Rg2 f1Q Qc3 Bg5 Ke5 f2 Qc2 Qd2 Qcf5 Rc7 Qc8 Qd7 Re1 Be2 Rg1 Qb5 Ke6 Rc6+ Ke7 Qc4 Kf8 Qd5 Rg2 Qh1 Rgg1 f1B Rg2 Qc2 Rf2 Bd3 Rf4 Qf2 Rh4 Bh6 Ne7 Bf4 g8R Bfe2 Rg6 Qhf1 Kg7 Bg5 Bc1 Bd2 Ng8 Bg4 Re7 Bge2 Qff8 c4 Qf4 Rf6 Qg5 Rf3 Qf6 Be1 Bf4 Bd2 Be3 Bb1 Bg5 Rc3 Be3 Bbd3 b4
2Nnn2k/8/4bQp1/KBnRpN1B/Q3N1Pp/q7/2nP1r1b/1Q1bNQ2 b - g3 0 1 illegal: Lossy FEN conversion
1N5K/1qb1k3/B3B1rP/pQ4R1/N3Pp1r/B2p3n/rP1r3N/RR3nq1 b - e3 0 1 illegal: Lossy FEN conversion
2R1rn1R/NN6/rQ1p1r2/qRpP3b/1pP1Bqp1/B2P2b1/nq3B2/2Nk3K b - c3 0 1 illegal: No possible last move, all moves rejected
2nB4/1RN3rk/1n2r3/1N1n1RQp/1B1Pp3/1qP5/rQ3PB1/rn1N1K1b b - d3 0 1 legal: proof: e4 f5 h4 fxe4 a3 b5 Qe2 d5 Ra2 c5 Rh3 g5 hxg5 c4 Rh1 b4 Ra1 Bg7 Qd1 e3 Nc3 Bd4 Ne4 Bc3 Rh3 b3 Rh1 Bb4 axb4 c3 bxc3 dxe4 g4 Kf7 g6+ Kg7 g5 e5 b5 h5 b6 a5 b7 a4 Ba3 b2 Bb4 b1R Qc1 a3 Bg2 a2 Kf1 Qf6 Ne2 Nd7 b8B Qb6 Bc7 Rh7 Bd8 Bb7 c4 Ra5 c5 Ne7 c6 Nc8 c7 Rb2 Rh4 Ra6 Rb1 a1R Rf4 Rba2 Qb2 Kh8 Rf3 Rg7 Rf5 Ba8 Nc3 e2+ Kg1 e1N Nd1 e3 c3 Nc2 Kf1 Rf7 g7+ Kh7 g8N Rg7 Ne7 Na3 Nd5 e2+ Kg1 e1N Kf1 Nec2 g6+ Kh8 Ba5 Qb3 Bb4 Na7 c8N Nb6 Nd6 Nac8 Nc7 Ne3+ Ke2 Be4 Ndb5 Ned5 Kf1 Bf3 Bh4 e4 Bd8 Rd7 g7+ Kh7 Rc1 Nb1 g8Q+ Kh6 Qg5+ Kh7 Rc2 Rg7 Qc1 Nd7 Rb2 Re6 Qc2 Qa3 Rb3 N7b6 Qb2 Qa4 Ra3 Qb3 Ra7 Reg6 Rb7 Re6 Bh3 Bh1 Bg2 Rd6 Qe7 Rh6 Qg5 Re6 d4
N3r2n/1P1r4/nBK3RB/1pbN1P2/k2PpBp1/2R1Q1Qn/2q1N1p1/n7 b - d3 0 1 legal: proof: e4 f5 exf5 a5 c4 h5 g4 hxg4 b4 d5 bxa5 b6 c5 Nd7 c6 Nb8 Bc4 Bb7 cxb7 dxc4 Ke2 Kd7 Ke3 Kc6 Ke4 Kb5 h4 e5 f4 c5 a4+ Kb4 h5 g5 a6 c3 a5 c4 f6 b5 a7 g3 f5 c2 a6 g4 h6 g2 h7 c3 f7 Qe7 Kd5 e4 Qe2 Nd7 Rh6 Bg7 f8B Nb8 Rg6 Nh6 Ba3+ Ka4 Qe3 c1N Ne2 c2 Ra2 Rg8 h8B Bd4 Be5 Bc5 Bf4 Nf7 B8h6 Qc7 Ra1 Nh8 Nbc3+ Ka5 Rb1 Nb3 Rc1 Na1 Qg3 Re8 Qe3 Bd6 Bc5 Re7 Bd4 Rd7 Bb6+ Kb4 Rh1 c1N Rh3 Nd3 Rg3 Nc6 Rf3 Rb8 a8N Re8 a7 Nb8 Rh3 Na6 Rg3 Qb8 Kc6 Bc5 Nd5+ Ka4 Qf2 Qe5 Bc7 Qd4 Nab6+ Ka5 a8Q Qa4 Qa7 Qc2 Na8+ Ka4 Qe1 Nf2 Rc3 Ba3 Qe3 Bc5 Bb6 Nh3 Qh4 Nc7 Qhg3 Na6 d4
1nB3Q1/NpRkp1N1/qQ5K/4rP2/2P1pP2/1Rqrq1Bp/3R4/3rQ1n1 b - f3 0 1 illegal: Lossy FEN conversion
2bbrb2/1P4pQ/R1B1Q1q1/1K6/RpP1N3/5nBn/1p1Pr2B/k1nq1NR1 b - c3 0 1 illegal: Lossy FEN conversion
2N1R3/K5BB/PpqN1pQB/2n1b3/bPp1n3/b2nNPQ1/2kr1R2/q5n1 b - b3 0 2 illegal: Lossy FEN conversion
5RNb/2Np3r/Q3B1kP/1Q5p/2pPnn2/1R2N1bP/bKn3b1/R3rB1r b - d3 1 2 legal: proof: e4 h5 c4 b5 g4 c6 b4 Qa5 Ba3 bxc4 g5 f5 exf5 Qd5 b5 a5 Bc5 Qd6 Bb4 Qh6 gxh6 axb4 a4 Kf7 f4 g5 f6 e5 h3 c5 f5 g4 b6 e4 b7 c3 a5 c4 a6 e3 a7 c2 Ne2 c1R Nf4 e2 Ng2 b3 Nc3 g3 Nd5 b2 Nc7 b1B Ne3 Na6 b8Q g2 Qb5 g1N Ra3 Bd6 Rb3 Nb4 Qa6 Rb8 a8B Rh7 Bag2 Be5 Bd5+ Kf8 f7 Bh8 Be6 Ba2 Qb5 Bb7 Qa6 Ke7 f8N Kf6 Ng6 Bg2 Ne7 Re8 Qb5 Kg5 Qa6 Ra1 Qb1 Nf6 Ng8 Ne4 f6 Kg6 f7 Re7 Qc1 Nf6 f8R Nc2+ Kf2 Re8 Qb2 Re1 Qe5 Rb8 Qeb5 Ra8 Kg3 Ne4+ Kf4 Re8 Nf6 Rc1 Ke5 e1B Kd5 Ne2 Ng8 Bg3 Rg1 Ng5+ Kc5 Nf4 Rh1 Na1 Kb4 Ne4 Ka3 Ree7 Rg1 Re1 Rh1 Reg7 Kb2 Nc2 Rg1 Rf7+ Nf6 Rc1 Bd3 Ne2 Rc3 Ra1 Ng8 Rf4 Rc1 Rf1 Re1 Rh1 Rc1 Ncd4 Rb3 Nf4 Bf1 Bf3 Rc2 Re1 Rc1 Bg2 Ra1 Nc2+ d4
5Nq1/1nP1pBkR/Q6p/4Pb2/2pR2pP/br4r1/4B1N1/KQ1rrQbB b - h3 1 2 illegal: Lossy FEN conversion
3q2q1/r2Rpk2/r2BP1p1/nbPBnq1p/1bp2RpP/2N2R2/QQ6/1BN3K1 b - h3 0 1 illegal: Lossy FEN conversion
n2B1N1k/n5BN/bqPK4/QR3P1p/3pP1pB/1q4B1/1B3R2/bq1n4 b - e3 0 1 illegal: Lossy FEN conversion
Rk1NR3/1P2q3/3qB1q1/n1n1B3/N4pPB/2B1q3/K2B1r1P/2bbnnQ1 b - g3 0 1 illegal: Lossy FEN conversion
N3B2Q/q4kq1/1pKP1BR1/Nn3b1b/pPP5/r1nB2pR/B2Bn3/4b2n b - b3 0 1 illegal: Lossy FEN conversion
4rB2/p5N1/1Pbpn3/bpq1r3/1PpRkBR1/P1B5/2B1n1Kn/n2qBQ1N b - b3 0 1 illegal: Lossy FEN conversion
BB2brNK/5r2/1r5P/B1qN1Rq1/PpP3r1/1Nn3b1/2n3rk/Q3rRN1 b - a3 0 1 legal: proof: e4 a5 b4 axb4 g4 f5 exf5 c5 d4 h5 gxh5 cxd4 Ke2 Kf7 Kf3 Kf6 Kf4 g5+ Kg4 Ke5 h4 d5 c4 b5 f3 b3 h6 b2 Kh5 d3 Kg6 g4 h7 d4 f6 d2 h5 Kf4 h6 Kg3 f4 e5 f5 e4 f7 e3 f6 e2 Qa4 e1R Nf3 d1R Ng1 d3 Nh3 d2 Qa7 Nc6 Qd4 Bd6 Kg7 Nb4 f8N Ne7 f7 Bd7 Ng6 Be8 f8B Nc2 Ng1 Nd5 Ne7 Nc3 Bg2 Ra7 Rh5 b4 Rf5 Kh2 Ba8 g3 Qf6 Bc7 Nd5 g2 Be7 Rf8 h8N Bg3 Ng6 Re6 Kh7 Rde1 Qh8 d1R Bf4 R6e2 Nd2 b1R Nb3 Re6 Qd4 Rd2 Bb8 Rb6 Qg7 Qc7 Bd8 Qc5 Nge7 Rd7 Ng8 Rdf7 Kh8 Rf2 Nh3 g1Q Qf6 Qg2 Ng1 Re4 Bdc7 Rbe1 Rd1 Rg4 Rb1 Re5 Rf1 Re1 Qe5 Nd1 Qa1 Nc3 Nf6 Qgd5 Bd8 Qd2 Nd5 Qg5 Bdc7 Rg2 Bd8 Rbe6 Ba5 Rb6 a4
1brN2QR/q1Nr1BBr/3r2P1/qb6/2pPRn2/bP3K1b/6n1/kB2B1N1 b - d3 0 1 illegal: Lossy FEN conversion
nB1qQ1B1/1B1r1B1n/Nb6/1R2PK2/bN1Pp3/br3kq1/P1q3p1/1rRN4 b - d3 0 1 illegal: Lossy FEN conversion
n5B1/1QP2N2/rrB2k2/1p2b2q/3Ppn1B/p3BbNq/RP5R/K4Nqq b - d3 0 1 illegal: Lossy FEN conversion
2qRr1qB/2Rb3B/1k1Nn1qp/pr2R3/Pq2QRpP/Nb2P3/8/3Nn1K1 b - h3 0 1 legal: proof: d4 e5 g4 exd4 b4 c5 bxc5 f5 Be3 fxg4 Bh6 Be7 Bc1 Bf8 c3 b5 Bd2 b4 Bg5 b3 Bf4 Bd6 Bc1 Bc7 Qd3 Ba5 Qd1 Bb4 cxb4 Ba6 Be3 Bb7 Bc1 Bc8 f4 a5 Kf2 g5 a4 d5 c6 h6 f5 g3+ Kg2 b2 e3 d3 b5 d2 f6 d4 b6 d3 c7 Kd7 b7 Kc6 f7 Nd7 b8N+ Kb6 f8R Ngf6 Ne2 Ne4 Qc2 d1Q Rf5 d2 Kg1 g2 Re5 Ndc5 Na6 Nd3 Nc5 Rb8 Nec3 Ne1 Bd3 Re8 Na3 b1Q Bb2 Bd7 c8R Qg4 Nb7 d1B Nd6 Nc5 Bh7 Qb4 Rc7 Qc8 Qe4 Bb3 Nd1 Qd3 Rc1 Ne6 R1c4 Qc2 Qg4 Qg6 Rf4 Ka6 Qf3 Rb5 Qe4 Qg8 Ref5 Kb6 Bh8 Qf7 Re5 Qg6 Rf8 Re7 Rd8 Re8 Kf2 Qg8 Rf1 Qg6 Kg1 Qg8 Rf4 g4 Kf2 g1Q+ Ke2 Qg3 Kf1 Qh4 Kg1 Qf6 Nb1 Qfg7 Na3 Qg6 h4
2N3RR/2Kpb1Bq/k1n2N2/BP2pBn1/bq2Pp1R/1n1P1q2/3B3q/n5Q1 b - e3 0 1 illegal: Lossy FEN conversion
4r2B/r3R1p1/1n1kQb1N/1bp1NKP1/2P1pP1q/n3R2B/B1q5/1Nqq1Nr1 b - f3 0 1 illegal: Lossy FEN conversion
1q1r2n1/1bpr2p1/3N2Kn/N1B2PQ1/R2qnpP1/1n5R/1BP1bb2/1BRBk3 b - g3 0 1 illegal: No possible last move, all moves rejected
N2nN3/1b1b1RKP/B4pB1/5qrp/N2ppP2/3RP1B1/kn1nN3/1r3nbQ b - f3 0 1 illegal: No possible last move, all moves rejected
1b5n/BK4Bk/p1r1R2q/5bNq/Bp1pPN2/Q1R3pB/pP4Pr/4nnN1 b - e3 0 1 illegal: Lossy FEN conversion
3n2N1/BN1p3k/1P2R3/1Br3b1/1bR1bbPp/q1b1b2Q/P1Q1R3/R2Knr2 b - g3 0 1 illegal: Lossy FEN conversion
5b1K/1qPkR1p1/BqN2rQ1/1pP1n1Bb/3pP1B1/b1Rr2Q1/n2B4/5Nr1 b - e3 0 1 illegal: Lossy FEN conversion
1Q1rb1rR/nB6/P1pn4/Kb6/NpPqq1NQ/bP2q2R/k2q1QQB/3n4 b - c3 0 1 illegal: No possible last move, all moves rejected
1q4r1/qPbB4/N1NN1b2/4nNk1/3Q1ppP/PQ2R3/Rbr3Q1/1q1b1K2 b - h3 0 1 illegal: Lossy FEN conversion
kN4bb/3R4/NbQ2r2/1nQP2RP/rnR1Ppr1/RB1p2N1/1n1K2p1/8 b - e3 0 1 illegal: Lossy FEN conversion
1k3n1Q/RpNrB2b/N2P2pp/1B2Qq2/1pP4Q/1P2qpK1/7N/2Qrr3 b - c3 0 1 illegal: Lossy FEN conversion
R4r1Q/b1p1q3/Kb4n1/2Q1NQQ1/3n1Ppn/1RnBk3/prRP2P1/2B2b2 b - f3 0 1 illegal: Lossy FEN conversion
1K2QNB1/1p1NQb2/krpQ1q2/3R2b1/1Pp1q1qN/n1PqR3/7P/1nbN4 b - b3 0 1 illegal: No possible last move, all moves rejected
rb6/Qpq5/Bp3Br1/1P1KQ1qB/2NpPp1k/2bn1Q2/bP4n1/3BR1N1 b - e3 1 2 illegal: No possible last move, all moves rejected
n1RR1brN/2R1pbBK/kB1q4/1q1B1P1n/5PpB/NP6/1N1q3b/4q3 b - f3 0 1 legal: proof: e4 d5 g4 a5 c4 h5 cxd5 f6 a4 hxg4 Qe2 b5 axb5 Ra6 Qe3 Re6 Qc3 Re5 Qd4 Rf5 Qe5 fxe5 exf5 Rh7 Be2 Rh5 Bf1 Rh8 Ke2 Kd7 Ke3 c5 d4 Kc7 h4 Kb7 h5 g5 d6 c4 d5 g3 b6 g2 h6 g4 d7 c3 b3 a4 d6 e4 Kf4 a3 Kg5 e3 Kg6 e2 h7 e1Q Bc4 a2 Bg5 c2 Bh4 c1Q Na3 Nf6 Nh3 g1B Bd5+ Ka6 b7 Qed1 Nf4 Qb2 Nd3 Qdc2 Rc1 Qe5 Nb2 Qd2 Rc7 Bh2 Rhc1 a1Q R1c3 Nh5 R3c4 Nc6 b8B Qae1 Ba7 Bb7 Bd4 Nb4 Rc1 Q5e2 Bg7 Rg8 h8N Qb5 Kh7 Qb8 d8B Bc6 Bd4 Be8 d7 Bf7 Bg7 Q8b6 Rc8 Qbe6 Bb6 Qd6 Bc6 Nd5 d8R Nc7 Bd5 Na8 R1c5 Qda5 R5c7 Qad2 f4
6K1/r1B5/k4N2/Nn2P1Rq/RQpP3b/nrP1bPrN/2B2p2/1b4bB b - d3 0 1 legal: proof: h4 g5 a4 gxh4 c3 b5 axb5 d5 Qb3 d4 Qc2 d3 f4 e5 fxe5 dxc2 Kf2 f6 Ke1 f5 Nh3 f4 Ng1 f3 Kf2 Qf6 Ke3 f2 Kd3 Qf3+ exf3 Be7 Ke2 Bf8 Ke3 Kd7 Kd4 c5+ Kd5 Kc7 b4 Kb7 g4 h5 b6 a5 g5 h3 g6 c4 b5 a4 g7 h4 Rh2 a3 Bg2 a2 Bb2 c1B Bf1 Nh6 g8B Nf7 Ne2 Nd6 Ba3 Nc6 Rh1 h2 Bh3 Ra7 Rd1 h1R Ng1 Nd4 Bh7 Bh6 Bc2 Bf5 Bg2 Rb8 Nh3 Bf4 Rg1 Bh2 Bc5 Rg8 Na3 Rg3 Bb4 Bg6 Ba5 Bb2 Rgd1 Rf1 Bh1 Bg1 Re1 Bd3 Re4 Rc1 Rg4 Rb1 Rg5 Bh7 Bd3 Bg6 Nc2 Ba3 Nb4 Rb3 Nc6 Nc2 Ke6 Bc5 Ke7 Be3 Kf8 Be4 Kg8 Na3 Bc2 Bg6 Nb4 Bd3 Nd5 Bg6 Nf6 Bd3 Rd1 a1B Rc1 Bb2 Ra1 Nb1 Ra4 Na3 Bd1 Bb1 Bc2 Ka8 b7+ Kb8 Nf4 h3 Bd8 h2 Nh3 Ra5 Bc7+ Ka7 b6+ Ka6 b8Q Ndb5 b7 Bc1 Bg2 h1Q Qf8 Qh2 Bh1 Bb2 Qb4 Bc1 Nf4 Qh5 b8N+ Kb7 Nc6 Ra7 Na5+ Ka6 Be4 Nc2 Qe7 Ba3 Nh3 Bd6 Qf8 Nca3 Qb8 Bf8 Bc2 Bh6 Qf8 Bg7 Qb4 Bh6 Rg6 Bhg5 Rg7 Bh4 Rg6 Bf4 Rg5 Be3 d4
1Bqn1q2/p3rBkR/5N2/PbqP1Qb1/b1pPN2p/6PR/1b4B1/1N2n2K b - d3 0 1 illegal: Lossy FEN conversion
3bb3/2Rpbk1N/2n2q1b/pN1NP2r/PpP5/1P4p1/6RB/1r1qQRBK b - a3 0 2 legal: proof: g4 h5 gxh5 c5 e4 f5 Qe2 fxe4 Qd1 c4 d4 e5 Kd2 e3+ Ke1 e4 Be2 Nc6 Bd3 Ne5 dxe5 cxd3 Kf1 b5 Kg2 g5 h4 a5 c4 g4 f4 e2 h6 e1B h7 e3 h5 e2 h6 d2 b3 b4 f5 Ra6 f6 Ra7 f7+ Ke7 Na3 Qb6 Rh2 Qg6 Nh3 Ra6 Ng5 Bh4 Qe1 d1Q Kh1 Rd6 Bf4 Bb7+ Rg2 Bd5 Nb5 Qf6 Bh2 g3 Rb1 Bf3 Rc1 Bh5 Rb1 Bg7 f8B+ Ke8 Be7 Bf8 Rc1 Rd2 Bc5 Ne7 Bcg1 Nc6 Ra1 Be7 Rb1 Rg8 h8R Rb2 Nh7 Kf7 Rc1 Rg6 Rc8 Rg5 Rc7 Bg6 Rc3 Bd8 Rf3 Rb1 Rf1 Rf5 Nf8 Rh5 h7 Kg7 h8N Be8 Nhg6 Kf7 Nh7 Bg5 Qd2 e1B Ne7 Bf2 Qe3 Bh6 Qe1 Bc5 Nd5 Bce7 a4
b3n2B/bRrR1Bb1/2qQnB1r/2n1P3/4PpN1/Qr1P1kP1/7p/K1n2N2 b - e3 0 1 illegal: No possible last move
1r3RQb/rQ6/p1BNr2n/RN1P1b2/bB3pP1/P1bN1q1P/3k3K/4n1r1 b - g3 0 1 legal: proof: e4 c5 b4 d5 bxc5 dxe4 f4 h5 Qxh5 g5 Qh7 gxf4 Kf2 Kd7 d4 Kc6 c4 e5 h3 f5 a3 b5 Be2 e3+ Kf3 a6 Qg6+ Qf6 Qg7 b4 Bb2 b3 Qa7 Nh6 Bc1 b2 Qh7 Ra7 Bd3 e2 Bc2 e1R Qg8 Nd7 Ne2 Bg7 Nbc3 b1R Bd2 e4+ Kf2 f3 Kg3 e3 Nb5 f2 Bb4 f1B Nc1 e2 Nd3 Qf7 Ba4 Ne5 Kh2 Qh5 Ra2 Qf3 Rc2 f4 d5+ Kb7 c6+ Kb6 c7 Bf5 c8Q Rbd1 Qh7 Bf6 Qcd7 Rb8 Qg8 Bh8 Rc1 Nc6 Qdg7 Nd4 Rb1 Nc2 Qb2 Rc1 c5+ Kb7 c6+ Kb6 c7 Rcd1 Bf8 Ka5 c8N Rc1 Bb3 Rcd1 Bc4 Ka4 Ncd6 Rc1 Nc7 Rcd1 Qb7 Rc1 Rb6 Rcd1 Bb5+ Kb3 Bd7+ Kc3 Rb5 Kd2 Ra5 Rb1 Be8 Rb6 Bb5 Rd1 Bc6 e1B Ncb5 Be2 Nb4 Bc4 Rg1 Bb3 Nd3 Ba4 Rf1 Ke2 Rh1 Bec3 Re1+ Kd2 Re8 Rg1 Be7 Ne1 Rf8 Bd1 Ne8 Bb3 Bb4 Ba4 Ned6 Re8 Qbg7 Rbb8 Qb7 Re6 g4
NKB5/Rprp1Q1R/1PP2N1q/1b2n1b1/1PpQ1q2/B2b2q1/R1Prq3/2k5 b - b3 0 2 illegal: Lossy FEN conversion
2r1B1b1/1n1qr1P1/6b1/1b4r1/2kBPp2/qNPp2RN/Q1NP2pb/2RKQ3 b - e3 0 1 illegal: No possible last move, all moves rejected
nr1bbqQn/b1Rpp1P1/5B1P/1R5N/3QpP2/2KP4/1N5q/2b1BBkn b - f3 0 1 illegal: Lossy FEN conversion
3R1Q1N/1P2pB1p/n1N2bb1/2n1P1P1/nPp1npK1/2r1B2R/3b4/1kq1R2Q b - b3 0 1 legal: proof: h4 d5 g4 g5 a4 b5 axb5 a5 c4 dxc4 f4 gxf4 h5 Ra6 g5 Rg6 hxg6 Bd7 Rh6 Bf5 Rh1 Bc8 Kf2 Kd7 Kf3 Ke6 e4 Ke5 g7 Kd4 d3 c5 b6 f5 e5 a4 b7 c3 Na3 c2 Rh3 Nf6 g8R Nfd7 Be2 Na6 Rg3 Qc7 Rg6 Nb6 Qd2 Bg7 Qd1 Bf6 Bd2 c1B Nc4 a3 Rg8 a2 Nd6 Na4 Rh3 Bd7 Rf8 Be8 Nf7 Rg8 Nh8 Bg6 Rb1 a1N Ra8 Rc8 Be3+ Kd5 d4 Bd2 Bd3 Nb3 Ne2 Qc6 Bc2 Kc4+ d5 Qc7 d6 Kb4 Kf2 f3 Kg3 f4+ Kg4 f2 d7 f1N d8Q Ng3 Nd4 Ne4 Qh1 Kc4 Bd1 Kd3 Qf8 Qc6 Bf3 Qc7 Nc6 Kc2 Na7 Qc6 Re1 Rc7 Bd1+ Kb1 Rd8 Qb5 Nc6 Qc4 Qh2 Qc1 Bf3 c4 Qg1 Rd7 Qh1 Rd3 Bg2 Nbc5 Bf3 Nec3 Bd5 N3e4 Bf7 Rc3 b4
1Q1q1n2/1bp2k2/3p1N1K/b1n1rrRP/1pPP1r1P/1q2B1b1/BN1Bn1R1/5Q2 b - c3 0 1 legal: proof: e4 f5 b4 fxe4 g4 h5 gxh5 a5 Bb5 axb4 Ba6 Nc6 Bf1 Nb8 Ke2 e5 Ke3 b5 f4 g5 a4 g4 h4 g3 d4 g2 a5 b3 a6 b2 f5 Ne7 f6 Ng6 a7 Bd6 Na3 b1Q Ne2 g1N Qd3 Na6 Ng3 Rf8 Nc4 Nc5 Bd2 Bb7 Rh2 Kf7 Nb2 Ne2 Ra5 Qa2 Bh3 Qb3 Rg2 Rc8 a8Q Rb8 Kf2 Rc8 Qb8 e3+ Ke1 e4 Be6+ Ke8 f7+ Ke7 Nh1 Bg3+ Nf2 d6 Bd5 Ng1 Qf1 e2 Be3 Kf6 Kd2 e1R Bc4 Ne2 Ng4+ Ke7 Qf4 Rf1 Nf6 Re8 Qf2 Nf8 Qg1 Rf4 Qf1 Nfe6 f8B+ Kf7 Bh6 Re7 Nd5 Nf8 Bg5 Re5 Bh6 Qa3 Ba2 Qa4 Nf6+ Qb3 Kd1 Rff5 Bd2 e3 Bf4 Ng1 Kc1 e2 Bfe3 e1B Kd1 Nh3 Ke2 Rf4 Ra6 Rff5 Rc6 Nf4+ Kf3 Ne2+ Kg4 Re6 Rb6 Rf4+ Kg5 Re5+ Kh6 Ref5 Bc1 Ba5 Bcd2 b4 Rb5 Qe7 Qf3 Re8 Qf2 Qd8 Qf1 Ncd7 Re5 Nc5 Rd5 Rf3 Re5 R5f4 Rg5 Re5 Bf2 Rff5 Bfe3 R3f4 c4
r3n1rb/3RRk1N/N2B2p1/1r1p2P1/p2PppBQ/P4nr1/2K1b1rP/Q1R5 b - d3 0 1 illegal: Lossy FEN conversion
2RNnn1b/2bRq1BR/1k1pN2P/5q1r/2K1pPr1/1PQ5/b1P3B1/2q3R1 b - f3 0 1 legal: proof: e4 b5 d4 f5 exf5 g5 a4 bxa4 Qe2 c5 dxc5 h5 Kd1 g4 Qd3 h4 Qg3 hxg3 Ke1 Qb6 Na3 Qc6 Nb1 Qf3 gxf3 Rh4 Ra3 Rh3 Ra1 Rh8 Ke2 Kd8 Kd3 Kc7 h4 e5 h5 a5 f4 e4+ Kc4 g2 f6 g3 f5 a3 f7 a4 f6 a2 c6 a3 Nf3 g1Q Bg5 g2 Bh6 Kb6 c7 Bd6 f8Q Bh2 f7 Nf6 Qg7 Ne8 f8R Bf4 Be2 Qc1 Ng5 g1Q Qc3 Qg4 Ne6 Qf5 Nd2 Rg8 Nf3 Ra5 Rh2 Rg4 Ne5 Bb7 Rb1 a1Q c8R a2 Nc6 Bc7 Rf7 d6 Ncd8 Nd7 Bf3 Nf8 Bg2 Ba8 Bg7 Bd5+ Kd4 Qcg5 Rd7 Qe7 Rg1 Qc1 Rhh1 a1B Rh2 Ba2 b3 Rb5 Kc4 Rf4 h6 Ra5 Rh5 Rg4 Rg5 Qff4 Rg6 Rh5 Rf6 Bb2 Rf7 Qe5 Bh8 Qf5 Rh7 Ba1 Bg7 Qfg5 Qd4+ Ka5 Bh8 Qf5 Qd3 Bf6 Qh3 Kb6 Qc3 Bg5 Be5 Bf6 Bd4+ Ka6 Be5 Bh8 Bg7 Kb6 f4
3N2B1/1B1Q1RN1/2rPP3/1q3n1b/B1pP2rp/5rk1/nPB1n3/Kn3b1R b - d3 0 1 illegal: No possible last move, all moves rejected
1qN5/2r2Bn1/2BP1PRK/3Q1pN1/1pPb3R/1B2k3/3Prb1b/q3bBn1 b - c3 0 1 illegal: Lossy FEN conversion
N7/NP1bR1K1/1nr5/1p2nkN1/Pp1Q1qb1/3BBq1P/1Pqn1b2/1rR4N b - a3 0 1 illegal: Lossy FEN conversion
1RBB1bk1/2p1b2n/2bnPrB1/QRq5/1pP3PK/n4P1N/n7/3Nrn1B b - c3 0 1 legal: proof: e4 a5 b4 axb4 h4 g5 hxg5 e5 d4 f5 dxe5 fxe4 g4 Kf7 a4 b5 a5 h5 f3 d5 Kf2 d4 Kg3 d3 a6 h4+ Kh3 d2 a7 b3 Be2 b4 Qe1 d1N Be3 b2 Qf2 Qd5 Bb6 e3 Qh2 Na6 Qg3 Nc5 Nc3 b1N Bf1 e2 Bg2 e1B Ra5 Nf6 e6+ Kg8 g6 Bb7 g7 Rh6 Rb5 Nce4 Qe5 Bc6 Bc5 Na3 Be7 Nh7 Bd8 Rf6 Rh2 Bf2 Bh1 Nd6 Rb8 Qd4 Qa5 Qc5 Rb5 Be3 Rb8 Bg5 Rb5 Nb2 Nd1 Nd3 Rb8 Nc1 Re2 Na2 Re5 Qb6 Rb5 Qc5 R8b7 Rb8 a8B Rc8 R7b6 Rb8 Bb7 Ra8 Bc8 Ra6 Kg2 h3+ Kg3 h2 Rb8 Ra7 Bg2 h1N+ Kh3 Bc1 Kh4 Ng3 Nh3 Nf1 Bh1 Bg5+ Kh5 Rf4 Qa4 Nb1 Ndf2 Nac3 Qa6 Ra8 Qb6 Ra1 Qa5 Bh6+ Kh4 Be7+ Ng5 Rf6 Ngh3 Qf5 Nf4 Na3 N4h3 Re1 Nd1 Na2 Bd7 Ng5 Bc8 Kh7 g8B+ Kh8 Ba6 Nh7 Bc8 Qc5 Bf7 Bhf8 Bg6 Kg8 c4
rNr2Q2/B2R1b2/Pq3bnn/1q2b2B/k2Pp3/1NP1bB2/p1K1P3/2Q3rQ b - d3 0 1 illegal: No possible last move, all moves rejected
1qr2krR/1Q1qr2P/1K2p3/1QN2pq1/1B3Ppr/R2n2n1/3P2P1/Q1b2RN1 b - f3 0 1 illegal: No possible last move, all moves rejected
B7/r1Q1Kp1P/1b1B2Q1/1Rq1p1Qn/nn1NRPp1/p1B1k1p1/Prb1P3/1r6 b - f3 0 1 illegal: Lossy FEN conversion
1rN2n2/1pb5/5KRB/2P2N1b/1P1pkbPp/2P2r2/2Nqqr2/BRB4R b - g3 0 1 legal: proof: d4 a5 e4 f5 exf5 c5 dxc5 a4 b4 g6 Qd3 Bh6 Qd5 Bf8 Qb3 axb3 h4 Na6 f4 Nc7 f6 Ne6 f5 Ng5 hxg5 Qc7 f7+ Kd8 f6 Qb6 Na3 Kc7 Nb1 Kc6 Bd3 Qd8 Bf5 gxf5 Kf2 Kd5 Kf3 e5 a4 h5 a5 e4+ Kf4 b2 c3 e3 a6 e2 a7 e1B g6 h4 Kg5 f4 g7 f3 Be3 f2 Ne2 f1R Bc1 Ne7 g8R Ng6 Na3 b1Q Nc2 Qa2 Ned4 Bd6 f8B Rb8 a8N Ke4 Rb1 Beg3 Nb6 Rf3 Bh6 Bc7 Bb2 d5 Ba1 Nf8 Rg6 Bg4 Nc8 Bh5 Nf5 Qe8 f7 d4 Kf6 Bgf4 Bg5 Qb5 Bh6 Qe2 Bg5 Bfd6 Bc1 Bf4 Na3 Qad2 Nc2 Ne6 f8B Rf2 Bg7 Nf8 Bh6 Rh7 Rg3 Rd7 Rg6 Rd5 Nfe3 Rg5 Nf5 Rg3 Bab2 Rh3 Ba1 Rhf3 g4
1Kbb2RR/NR2b3/Brq1Q1Pn/p2R4/2P1pP1R/3rP3/nq4q1/5k1N b - f3 0 1 legal: proof: d4 c5 a4 cxd4 g4 b5 axb5 h5 gxh5 g5 hxg6 f6 Bg5 fxg5 Kd2 a5 Kd3 d5 c4 Kd7 h4 Kd6 b4 Ke5 h5 Kf4 b6 e5 b5 e4+ Kc2 g4 Kb3 d3 Ka4 g3 h6 d2 h7 d4 b7 g2 b6 d3 Kb5 Nh6 Nc3 Nc6 b8R Nb4 b7 Qg5+ Kb6 Na2 Kc7 Ra6 Nb5 Rb6 Na7 Be7 Rh4+ Qg4 Qb3 Rd8 h8R d1Q Qb4 Qa4 Rd1 Qb5 Qd6+ Qe5 Ra8 d2 Kb8 Rd7 Re1 d1Q e3+ Kf5 Be2 Qdd5 Rd1 Qb2 Qe6+ Kg5 Bf1 Qc6 Ne2 g1B Ng3 Rd3 Nh1 Qg2 Be2 Bd8 Bg4 Bh2+ Qd6 Ra3 Rd5+ Be5 Bf5 Bef6 Qe5 Rd3 Bd7+ Nf5 Qe6 Bfe7 Rg8 Qc5 Bb5 Qc6 Rh6 Kg4 Ba6 Kf3 Rh4 Ke2 Rgh8 Bf8 Qe7 Qe8 Qe6 Bf6 Kc7 Kf1 Rb8 Nh6 Ra8 Bd7 b8R Bb4 Rb7 Ba3 Rd8 Bc8 Kb8 Qc6 Rdf8 Bd8 Rfg8 Bae7 f4
2r1k1K1/PR3pQn/p4B2/1BQrN1R1/PPpQn2n/q1P2n2/2r2n2/3Qb3 b - b3 0 1 illegal: Lossy FEN conversion
1r1Q3n/4pRp1/rP3n2/3B2Bq/RRPp3b/rp3rP1/1P1bN3/1RQ2k1K b - c3 0 2 illegal: Lossy FEN conversion
2q1rk1q/3r1qb1/1p1P2qN/1R1RB3/pPRnrNP1/5B2/P2R1q2/N1K5 b - b3 1 2 legal: proof: c4 d5 cxd5 e5 f4 exf4 d3 c5 Be3 c4 Na3 c3 Qb1 c2 g4 cxb1Q+ Kd2 g5 h3 f5 Kc3 f3 Kd2 f4 Bf2 Bf5 Bb6 Nc6 Be3 Ne5 gxf5 g4 Nc2 g3 Na3 Ng4 hxg4 Bg7 Bh3 Bh6 Bf1 Bf8 d4 a5 f6 h5 f7+ Ke7 d6+ Kd7 d5 a4 Bd4 f2 e4 g2 e5 f3 Ne2 g1Q Rh2 b6 Nc2 h4 Bg2 f1Q Nf4 f2 Bf3 Bg7 f8R h3 Rf5 Ke8 e6 Rh7 e7 Qc8 Be5 Nh6 Rg5 Kf7 e8N Kf8 d7 Nf5 Nf6 Nd4 Ng8 Rb8 Rg2 h2 Nh6 h1Q d6 Qh5 d8R+ Qe8 Rd7 Qh1 Rb7 Qf7 Rc7 Qfg1 Rc4 f1R Rh5 Re1 Rf5 Re4 Rf2 Qbf1 Rd1 Qd3+ Kc1 Qh3 Re2 Qf2 Na1 Qh5 Rg5 Qc3+ Rc2 Qhg6 Rd2 Ra8 Rc5 Rb8 Rd5 Bh8 Rd1 Qfb7 Rb5 Qcf5 Rd3 Qcc7 Rd2 Qcg7 Kb1 Re8 Rc4 Qbc8 Bf6 Qg8 Rh5 Rd7 Kc1 Bg7 Rg5 Qfe6 Rgd5 Qef7 Be5 Qh8 b4
nnN3k1/P1r2Rb1/1R1K2p1/q3N2P/pP2b1B1/n4R2/b4qPR/1rBB1q2 b - b3 0 1 illegal: No possible last move, all moves rejected
r2qBbRR/N7/pRKB1n2/P2P1bb1/P1Q2pPp/q3P3/1N1nrq2/5k2 b - g3 0 2 legal: proof: b4 g5 f4 e5 h4 gxh4 a4 exf4 c4 d5 cxd5 Qf6 Nh3 Qa6 Ng1 Qa5 bxa5 Bh3 Nc3 Bf5 Nb1 Bc8 Kf2 Ke7 Kf3 Kd6 Ke4 Kc5 d4+ Kc4 d6 h5 d7 f5+ Ke5 c5 d8R b5 d5 a6 Ba3 f3 Rh2 h3 Re8 h4 Rh1 b4 Nc3 h2 Qe1 b3 Qc1 f2 Bb4 b2 Qd1 b1Q Qe1 Nd7+ Ke6 Ngf6 Qc1 Ne4 Qh6 Nd2 Ra3 Nf6+ Ke5 Rh7 Nf3 Re7+ Kd6 Qa2 Rg1 h1Q Nb5 Qh2+ Kc6 Qb8 Ne1 Re5 Rf3 Qa3 Na7 Kd4 Qh8 c4 Rg3 c3 Bd6 c2 Rg8 Ke3 Nd3 c1B Nb2 Be6 Rh1 Qd8 Qh6+ f4 Qg7 Bf5 Qc7 Bh6 Rh8 Bg5 Reg8 Re7 Nd3 Bb2 Qc8 Bc3 Nb2 Bb4 Qc7 Nc4 Rg1 Kd2 Rh1 Ke1 Rh3 Bc5 Rb3 Nd2 Rb6 Re4 Be5 Bf8 Bd6 Rd4 e3 Rd3 Be2 f1Q Qc8 Qf2 Bh5 Kf1 Be8 Rd4 Qe6 Rb4 Qe4 Rb3 Qb4 Rc3+ Qc5 Rc1 Qc2 Re1 Qc4+ Re2 g4
2Nn3K/rb2pk2/qNR4p/P2PBR2/Nn2p1Pp/8/rQ2P2P/nq1q1B2 b - g3 0 2 illegal: Lossy FEN conversion
5n1q/2k1N1q1/b1pp2b1/5PBP/RK1PpPP1/1n4N1/Bp1Qn3/3Q1b1R b - f3 0 1 illegal: No possible last move, all moves rejected
2B1RBR1/pP1bQ3/1kn5/2N1b3/Ppbn2b1/1PrP4/3b2NP/rqQ2K1b b - a3 0 1 illegal: No possible last move, all moves rejected
Bnn1b1Kb/Rp1N4/3qrP2/1PN1bbBP/1q1qpP1Q/r3P3/1r2Q3/R5k1 b - f3 0 1 illegal: Lossy FEN conversion
7q/b6p/bP1n2NP/2P2p1b/B1rn1PpB/1k1pQ3/N2PQ1rR/2Rn1K1n b - f3 2 3 illegal: Lossy FEN conversion
1nR3R1/1K1np3/2Rp2q1/1bP4p/2Pp1Q2/qp1P1PNP/N2r1kp1/6NB b - c3 1 2 legal: proof: g4 f5 gxf5 b5 b4 a5 d3 g6 e3 Bg7 Bb2 Bd4 Ba3 axb4 exd4 b3 Bd6 cxd6 Qg4 Ra7 Qh5 Rc7 Qd1 Rc5 dxc5 Ba6 Nc3 Bb7 Nb1 Bc8 Kd2 Kf7 Kc3 Kf6 Kb4 Ke5 a4 Kd4 a5 h5 a6 b2 f3 Ke3 a7 d5 a8R d6 f6 d4 h3 g5 f7 g4 f8N g3 Ne6 Rh7 R1a6 Qb6 Nc3 Rg7 Na2 Qa7 Ka5 b1Q Bg2 b4 Qc1+ Kf2 Ng5 b3 Qf4 Nf6 Rh2 Qf1 Bh1+ Qg2 Kb5 Bg4 Rc6 Qa3 Kb6 Nfd7+ Kc7 Be6 Kb7 Bc4 Ne4+ Kf1 Raa6 Bb5 Rc8 Rg6 Rac6 Re6 Nd2+ Kf2 Nf1 Re2 Ra6 Rd2 Rb6 Ke1 Rbc6 Qe2 Rf2 Qe4 Rg2 Qg6 Re2+ Kd1 Re5 g2 Rg5 Ke1 Ng3 Kf2 Rg4 Qf7 Rgg8 Qg6 c4
3BQ1Bn/N1p3p1/P2NK2p/1p4Pb/5PpP/1pP3Br/Rb2p2N/4nk2 b - f3 2 3 illegal: Lossy FEN conversion
N3rk1n/BnKRp2q/2N2N1P/8/Bb2bnPp/4P2r/PP1b4/1rbB1Q2 b - g3 0 1 illegal: No possible last move, all moves rejected
r1QNNK2/B1P3pQ/1qP2k2/2P1b1r1/B2P1BPp/qb2bn2/2nb1p2/4R3 b - g3 0 1 illegal: Lossy FEN conversion
bb5q/2r3NR/1P1q4/ppB1NNpB/P2R1pP1/p1P2n1N/K4P2/2k2bq1 b - g3 0 1 illegal: No possible last move, all moves rejected
1bN4K/5kr1/prQ5/P1n4N/Pp1b2Pb/5PRQ/1q2NPr1/3nQR1b b - a3 0 1 legal: proof: g4 h5 b4 d5 c4 f5 h3 f4 cxd5 f3 exf3 Qd6 Bb2 Qa6 Be5 Qa5 bxa5 Bd7 Bg3 Bc8 Bb5+ Kd8 Be8 h4 Bh5 hxg3 h4 Kd7 Bg6 Kd8 h5 Kd7 h6 Kd8 Bh5 g6 Ne2 gxh5 Ng1 Ke8 Ke2 b5 Kd3 c5 Ke4 e5 d4 c4 d6 c3 d7+ Kf7 Kf5 h4 d5 h3 d6 b4 h7 e4 Kg5 e3 d8Q g2 d7 h2 Qd3 c2 Na3 c1B Qb6 e2+ Qde3 e1B d8Q Na6 Nb5 Nh6 Nd4 Bd6 Nf5 Nc5 Ng7 Rg8 Ne2 g1R Rb1 Bc3 Nf4 Rb8 Qe5 Nf5 Ra1 Ne3 Kh6 Ba6 Qc6 Rb6 Qh4 Bb8 Qh3 Bf1 Ngh5 a6 Qe4 Rg3 Rg1 h1Q Qe5 Rg7 h8N+ Kf8 Rb1 Bd4 Nhg6+ Kf7 Ne7 Bg2 Nc8 Bd2 Rge1 Qf1 Red1 Qc4 Rg1 Bh1 Rbf1 Nd1 Qe1 Qc2 Rg2 Qb2 Rgg1 Rg6+ Kh7 Rg7+ Kh8 Bc1 Ne2 Bg5 Rg2 Bd8 Rh2 Rg1 Rg2 Bh4 Rg3 Rg2 a4
3B2K1/Pr2rp1p/Q1Pbp2R/2qb4/2Pp2nR/1N1kPBPN/1q2b1qP/6n1 b - c3 0 1 illegal: Lossy FEN conversion
b2b1KQ1/2pk1pQ1/3BN3/Q1r1p2b/4pPb1/1R1B2RR/3QN1n1/qr3QB1 b - f3 0 1 legal: proof: e4 a5 b4 d5 h4 g5 hxg5 dxe4 bxa5 b5 c3 Nc6 c4 b4 Rh3 Na7 Rh1 Nb5 cxb5 Bb7 Bc4 Ba6 Bf1 Bc8 Ke2 h5 Ke3 e6 Kf4 b3 Ke5 b2 d4 h4 a4 h3 g4 h2 b6 Ba3 d5 Bf8 a6 Bb7 d6 Bc8 a5 Nh6 g6 Rg8 a7 Bb7 g5 Rh8 d7+ Ke7 a6 Nf5 g7 Qb8 d8B+ Ke8 Kf6 e5 g8Q Bd5 g6 Bc4 b7 Ng3 g7 Bb5 Ne2 Rh4 Nd4 Qc8 b8R Qg4 Be7+ Kd7 Qd2 Qd1 Ne6+ Kc6 Bd3 Rh3 Ra3 Ne2 Bd6 Kd7 Nc3 Nf4 Ne2 Bc6 Rbb3 Rb8 a8Q b1B a7 Ng2 Qh8 Rg3 g8Q Ba2 Qhg7 Qf1 Rg1 h1B Qb7 Bd5 Qa6 Ba8 Qaa5 Rb5 Qa6 Rc5 Qc4 Bb7 a8Q Rh3 Qaa5 Ba8 Qdb4 Rh5 Bf4 Qa1 Bh2 Rh4 Qd2 Be7+ Kf5 Rh6 Qcc1 Bd8 Qf1 Rf6+ Kg5 Rf3+ Kh6 Re3 Qf6 Rh3+ Kg7 Rg3+ Kf8 Re3 Ng3 Re1 Ne2 Rd1 Qfg7 Rb1 Rb6 Bb3 Rb7 Bd1 Rbb3 Ne1 Rg6 Bf3 Bg1 Ng2 Rg3 Bh5 Rh3 Kc8 Bc2 Bg4 Rbg3 Bh5 Bd3 Kd7 Rc3 Bg4 Rb3 Bh5 Nc1 Bdf3 Ne2 Bfg4 f4
B1bK1B1N/p1R2RrQ/6q1/1pB4N/pPQNk2n/2Q1bp2/2Rq4/1Br2r2 b - b3 0 1 illegal: Lossy FEN conversion
q2n1B2/4RbqQ/1Nr2NRN/2Q1Q2n/4PpB1/b4n2/1n3qk1/BK2B1N1 b - e3 0 1 legal: proof: c4 b5 a4 f5 axb5 e5 f4 a5 g4 d5 cxd5 g5 h3 Ra6 h4 Rg6 gxf5 exf4 Bg2 g4 Bf1 Rg5 hxg5 Ba6 Nc3 Bb7 Nb1 Bc8 b4 Ke7 d4 Kd6 Kd2 h5 Kc2 c5 b6 h4 g6 a4 f6 h3 b5 a3 g7 c4 f7 a2 b7 h2 b6 c3 Qd3 g3 Qh7 g2 Na3 Nc6 b8Q+ Qc7 b7 Nf6 g8N Nh5 Qa7 Bg4 b8Q Bd7 Bd2 Bc8 Be1 Na5 Nf6 Nc6 Nc4+ Ke7 d6+ Ke6 d7 Qb6 d8B Ba3 Rb1 a1Q f8B Rg8 Rd1 Rg6 d5+ Kf5 d6 Qf2 Nb6 Be6 d7 Bf7 Rd6 Kg5 Bc7 Kh4 d8N Kg3 Re6 Rh6 Re7 Rg6 Be5 Qb2+ Kd3 c2 Bd4 Qa1 Qe5 c1N+ Kc2 Nd3 Qac7 Qc3+ Kb1 Nb2 Qc5 Rh6 Q7e5 Rg6 Ne6 Nd8 Ng5 Be6 Nf7 Bc4 Nfd5 Rc6 Nf6 Be6 Nh6 Bf7 Nf3 g1N Bh3 Qb3 Bg4 Kg2 Bdc3 Qd5 Bd4 Qd7 Bdc3 Nd1 Ba1 Nb2 Ng5 Qb7 Nh3 Nf3 Rf1 h1Q Rg1+ Kh2 Rg3 Qhg2 Ng1 Qa8 Bd7 Kh1 Rg8 Qg7 Bg4 Qh8 Rg7 Kg2 Rg6 Qg7 e4
2rq1N2/5QR1/B2R3q/n2bK1RB/1nQpPp1k/3q1N2/2Np2b1/3BBN2 b - e3 0 2 illegal: Lossy FEN conversion
BK1Nrbn1/1Q2r1k1/3Qn2R/q3pB1b/1RpPN1Bn/1r6/2N5/RNb3B1 b - d3 0 1 legal: proof: e4 b5 c4 f5 a4 fxe4 axb5 d5 cxd5 g5 h4 Nd7 hxg5 Nb8 Ke2 Kf7 Ke3 h5 Kd4 a5 Kc5 e5+ d6 h4 g4 h3 f4 e3 b4 c6 b6 e2 b7 e1B b5 h2 f5 a4 f6 a3 g6+ Ke8 g5 a2 f7+ Kd7 b6 Ke6 g7 Bg3 g6 Kf6 Bg2 Rh5 Nf3 Bg4 Nd4 Bd7 Qb3 Rg5 Nc2 Ne7 g8B Nd5 g7 Nc7 Bh7 Bh3 g8B Bg4 Bf5 Kg7 Bb2 Bf2+ Bd4 Bh5 Bg4 Rg6 Bh7 Re6 Bhf5 Re7 d7 Ne6+ Kd6 c5 B2f3 Nc6 b8Q c4 b7 Qb6 d8N Qa5 Bd5 Bh4 Bg1 Bf2 Qc7 Bd4 b8R Bb2 Rb4 Bc1 Qb7 Rb8 Qa3 Re8+ Kd7 Ne7 Bg2 Ng8 Qd3 Be7 f8N Bc5 Nh7 Bf8 Qbf3 Rb5 Kc8 Re7 Nf6 Rb6 Ra4 Rb3 Rb4 Re8 Kb8 Re7 Nba3 Re8 Qd6 Re7 Rb1 a1R Ne4 Ra2 Ra1 Re8 Nb1 Raa3 Ba7 Re7 Re1 h1N Bg1 Ng3 Rd1 Ne2 Rf1 N2f4 Bh1 Re8 Rf2 Ra2 Rh2 Ng2 Rh4 Bg6 Rh6 Bh5 Nec3 Nh4 Qb7+ Re7 Ne4 Ra4 Rb5 Rab4 Rb6 Rb5 Bhf3 Rc5 Rb4 Rcc7 Bh1 Re8 Nec3 Ree7 Qba6 Re8 Ba8 Be7 Ne4 Bf8 Qb7 Rce7 d4
4R2B/2Qr4/4B2K/1Bb5/np1RpPRQ/kQ1bN1R1/2R3Qp/3r4 b - f3 0 1 illegal: Lossy FEN conversion
1N3R1q/R4n2/2R1bR1R/Q2brQN1/QN2Pp1r/p5Bb/2p5/1k1Q3K b - e3 0 1 illegal: Lossy FEN conversion
K2n2N1/1P4B1/N2k1QR1/q7/2BpPn1R/1Q1p1Q1R/b1rr1pBp/3b3N b - e3 0 1 illegal: Lossy FEN conversion
2bq1R2/pNbk2Br/N3Q3/B1p4R/4PPp1/K2p2Rr/1Qq3Q1/3n1BN1 b - f3 0 1 illegal: Lossy FEN conversion
2R1B1R1/N1B2npb/3Qn3/qN1rP3/n1bBNpPr/2R1qk2/2nQ4/1KQ5 b - g3 0 1 illegal: No possible last move
bR3Kn1/2bq2N1/2p2N1Q/3nQ1R1/1rPp1B2/1n1Q1b2/kR1PB1rb/N4Bb1 b - c3 0 1 illegal: Lossy FEN conversion
1KQ1B3/R1B5/NPB1r1nN/2n1B2r/1Pp4r/B3NQ1b/b3bRbk/2q5 b - b3 0 1 illegal: Lossy FEN conversion
5q2/n1Q4b/1Rr2nbr/N2R3p/1Pp1B1R1/2Bp2PN/k3B1K1/BQB1b1n1 b - b3 0 1 illegal: Lossy FEN conversion
KNn3Q1/1N3p2/N1qr1NbB/2Q1bQqk/p3rPp1/3b2R1/N2P4/5RrB b - f3 0 1 illegal: Lossy FEN conversion
K3R1N1/7b/Q4Nkq/pN4pN/rq3pP1/P1bNr3/BBB1Rn1r/1Q1n1b2 b - g3 0 1 illegal: No possible last move, all moves rejected
2nNNnR1/7Q/2p1Bp1q/b1n4b/ppPK2Q1/1Q2QQr1/RP5N/r3B1bk b - c3 0 1 illegal: Lossy FEN conversion
rn6/5NqN/NR3P2/N3R3/1rNbPp1B/Q2p1pr1/1bbn4/1BkN1N1K b - e3 0 1 illegal: No possible last move, all moves rejected
Qqb5/1nPB1Nn1/1K1B4/1N1Bpqk1/BRbpP2N/3R1p1n/1R3Q2/3q4 b - e3 0 1 illegal: Lossy FEN conversion
2RN2nB/QRpn2N1/rr4B1/bQP3rn/n2bPp2/1K4NB/1B3q2/4k1Q1 b - e3 0 1 illegal: Lossy FEN conversion
2r1bb2/3R1p2/1N1pRb2/kQ1B3B/r2PpBq1/n1B2P2/nRQ2Q1K/1q1N2r1 b - d3 0 1 illegal: Lossy FEN conversion
5QNB/2nR1b1K/N2nr1Q1/Br3pb1/2p1qPpb/2p1N1PB/1b6/QR2Nk2 b - f3 0 1 illegal: Lossy FEN conversion
3nQ2b/1kn1NrN1/1P5N/1NNb2b1/pPp2pn1/2N2BR1/R2Q4/2b2KB1 b - b3 0 2 illegal: Lossy FEN conversion
6Kn/BRq1p3/2R2q1b/Rqr1B2q/pPRN2k1/B5nN/5QP1/1b2N2N b - b3 0 1 legal: proof: e4 b5 f4 d5 a4 f5 exf5 d4 axb5 d3 f6 g6 f5 Ba6 f7+ Kd7 cxd3 Bc8 d4 Nf6 d5 Ng8 h4 a5 Bd3 Ra6 f6 Ra8 Bf5+ gxf5 Kf1 Ra6 Kf2 Re6 Kf1 Re3 Kf2 Rg3 Ke1 Rg5 hxg5 Ba6 Qe2 Bb7 Qd1 Bc8 Ke2 c5 Ke3 h5 Kf4 c4 Ke5 h4 d4 h3 g6 c3 b6 c2 g7 f4 d6 h2 d5 f3 b7 f2 Nh3 f1Q Bf4 c1Q Na3 Qc5 Qf3 Na6 b8B Qcc4 Qf2 Qfd3 Ba7 Qc5 Rhc1 h1Q Rc4 Qd2 Nc2 Qa3 Ne1 Nh6 g8N Nf5 Nh6 Qab4 Ng4 Bh6 f8B Qa4 f7 Qac2 Bg7 Qdd3 f8N+ Ke8 d7+ Kf7 d6 Nc7 Ne6 Kg6 Nd4 Nd5 Ke6 Kh5 Kf7 Qb6 d8R Ng3 Bge5 Bf5 Rd7 Rc8 Rb7 Rc5 d7 Qf6+ Kg8 a4 d8R Qdb3 Ra8 Qb5 Rc1 Be4 Bd2 Nf4 Bb4 Ng6 Ba3 Qc3 Rc2 Nh8 Rc1 Bb1 Rc2 Rd5 Rc6 Qca5 R2c4 Kh4 Qe3 Qh2 Ngf2 Qc7 Nh1 Rc5 Qf2 Kh5 Bb6 Kg4 Ra5 Qa6 Ba7 Qb5 Ng1 Qhh4 Nh3 Qh5 b4
2r5/N1QRb1n1/1qb3Bb/Bb2BBPN/Ppr1R3/6p1/1Kn3b1/1R1R2kN b - a3 0 1 illegal: Lossy FEN conversion
2rrr1qr/4NRbb/4b1Bk/Q5Bn/2R3Pp/BN1PK3/RN1n1p2/3N2R1 b - g3 0 1 illegal: Lossy FEN conversion
nQ5b/1PQRN3/1qr1k1n1/n1bR4/NPp1NnNB/3b4/B3R3/1R2nK2 b - b3 0 1 legal: proof: f4 g5 a4 a5 g4 b5 fxg5 d5 g6 f5 axb5 d4 e4 d3 g5 f4 cxd3 Na6 d4 Nb8 d5 Ra6 h4 Rf6 h5 Rf5 h6 Nxh6 exf5 Ng8 d4 Kd7 g7 e5 g6 h5 b6 c5 b7 e4 d6 e3 d5 f3 f6 a4 f7 c4 Bd3 h4 Na3 e2 Nb5 a3 Nh3 a2 Ng5 h3 Ne4 h2 Nbc3 Nc6 Bg5 Na5 Bb1 Qb6 Bh4 Ne7 g8N Rh6 g7 Ng6 Na4 Be7 Rg1 h1N f8Q Ng3 Rg2 Nh5 Qc2 Bf6 Ne7 Nhf4 g8N Bd4 Qc3 Bh8 Qe5 f2+ Kd2 f1N+ Ke1 Rh5 Nh6 Ne3 Ng4 Rh6 Kf2 e1B+ Kg1 Nh5 Re2 Bb4 Qg3 Nhf4 Qf7 Nc2+ Kf1 Bc5 Qg8 Na3 Qh7 Kd8 d7 Nb5 Qh2 Kc7 d8R Bf5 Qg7 Ne5 Qf7 Rc6 Qh7 Neg6 Rd7+ Kb8 d6 Nc7 Qf7 Na8 Qg7 Ka7 Qg3 Ka6 Qg8 Kb5 Qb8 Kb4 Bc2 Kb5 Rb1 a1N Bb3 Nc2 Ba2 Ne1 Rc7 Bb4 d7 Bc5 d8R Kb4 Rcd7 Kb5 Nef6 Bd3 Ne4 Re6 Ng8 Kc6 Qh2 Rd6 Qg3 Kd5 Ne7+ Ke6 Qc7 Rc6 Rd5 Neg2 R8d7 Ne1 Qb8 Nh5 Qgc7 Nhf4 b4
Q3qBb1/2B1NBnn/n2n1N2/Nb5R/P2pP3/3b3K/1nN2k2/3RB1bQ b - e3 0 1 illegal: Lossy FEN conversion
NqNn2r1/Q1N1BkrB/2P2Qn1/3n1qQ1/R1pP1Q2/br6/1qN1b3/R5K1 b - d3 0 1 illegal: Lossy FEN conversion
r3NN2/rQ1bRn1N/3BR3/1q2Qp1P/1pP1q2k/4R1qB/1K3b2/2N1Rnq1 b - c3 0 1 legal: proof: f4 a5 g4 h5 gxh5 c5 d4 e5 fxe5 Na6 dxc5 Nb8 b4 axb4 Kd2 Ke7 a4 b5 h4 d5 e4 g5 c6 f5 c7 g4 a5 b3 Kc3 d4+ Kb2 d3 h6 g3 a6 d2 a7 g2 e6 Kf6 h7 b4 e5+ Kg6 h5+ Kg5 e7 Ba6 c8R Nd7 e8N Qa5 e6 Be7 Rc6 Nb8 Ne2 g1Q Bh3 Bc8 Ra3 Na6 Qe1 Qg3 Nbc3 Nh6 Nd5 Nf7 Ndf6 Bc5 e7 Kh4 Re6 d1Q Bf4 Bf2 Bd6 Qdd3 Nc1 Bd7 Qe5 Nc5 Re1 Rf8 h8N Ne4 Nh7 Nd2 Rg6 Qe4 Re6 Rb8 a8Q Rb7 Qa6 Ra7 Qb7 Qb6 Ng7 Qa6 e8R Nf1 R8e7 Rfa8 Ne8 Qb6 Bg2 Qb5 Ng6+ Kg4 Ngf8 Kh4 Kb1 b2 Rae3 Rd8 Bh3 Rc8 Qa6 Rca8 Ka2 Rc7 Kb3 Rca7 Qb7 b1Q+ Qb2 Qa1 Qe5 Qaa5 Kb2 Qab6 Rb3 Qbe3 Ra3 Qg1 Rc3 Q3f4 Rce3 Qfg3 c4
1B1Q1r1Q/n1n5/8/1p1n1NRB/2pPr1nR/4N1pq/1Pp1R1Bb/k2R1K1B b - d3 0 1 illegal: Lossy FEN conversion
3q2R1/1rbP3p/2b1RQBn/1B6/1nRBn1pP/6r1/BK1Nqp2/3Rk1BR b - h3 0 1 illegal: Lossy FEN conversion
BBb3qb/2qbb1N1/1B2q1n1/1Q1Nr3/nPp1Q2R/2Pkr2B/N6K/6NN b - b3 0 1 illegal: Lossy FEN conversion
1k3KbQ/rB1r1R2/bQ1n1n2/B2bRr2/P3pP2/1Q1R2QB/7N/2bB2q1 b - f3 0 1 legal: proof: e4 d5 b4 a5 bxa5 g5 c4 f5 exf5 c6 cxd5 g4 Na3 g3 Nb5 cxb5 hxg3 b4 g4 Qb6 g5 Qd8 Ke2 Kd7 Kd3 Kc7 Kd4 h5 Kc5 b5 g4 e5+ d6+ Kb7 d4 h4 a4 b3 f6 b4 a6+ Ka7 g6 h3 g5 h2 d5 b2 f7 b1R g7 b3 g6 b2 Nf3 e4 Bh3 Qh4 Qb3 Qh7 Bd2 Bd7 Ra3 Nf6 g8Q Ne8 g7 Re1 Ba5 Be7 f8R b1B Rf7 Bf5 Rg1 h1B Nh2 Bd3 Rg5 Be6 Re5 Bc4 Qg3 Re2 Rd3 Nd7+ Kc6 Ndf6 d7 Qh4 d8Q Rd2 d6 Bg2 d7 Rh5 Qc8 Rg5 d8Q Nd6 Qh8 Qh7 g8B Rf5 Kc5 Bed5 Qe6 Qg7 Qc7+ Bb7 Qb6+ Kb8 Qd5 Ba2 Qdb3 Bf1 a7+ Kc8 Bg4 Bd5 Bd1 Bf8 Bh7 Qg8 Bg6 Bh6 Bgh5 Bf4 Bhg4 Be2 Bh3 Bg5 Rf3 Ba6 Rc3 Rd4 Rf3 Bc1 Rd3 Rb8 a8B Rb7 Rd7 Ra7 Bb7+ Kb8 Rf7 Qf8 Rc7 Bg8 Rf7 Qg7 Kc6 Nh5 Kd7 Nf6+ Ke7 Qg5 Qe3 Qg1 Qg3 Rd5 Kf8 Rd4 Qb2 Bd5 Q6b3 Rc4 Qd4 Rc7 Qdb6 Rd7 f4
1bQb1N1B/4Rq1B/pq1B1PNr/2N5/2nQ1pP1/Rp1Q4/2r1k2P/3b3K b - g3 0 1 illegal: Lossy FEN conversion
1qN1r1NB/1b1pbn2/2P1n3/4R3/P1b2bpP/2kB4/2bQ1RR1/N2Br1QK b - h3 0 1 illegal: Lossy FEN conversion
Q2Nb3/3r3k/4Rq2/1nq2n2/1PpP1BK1/2B2n1N/p1PRQB1b/QNr4n b - b3 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bf5 f4 Bc8 g4 h5 Be2 Nc6 fxg5 Qd7 g6 Nb8 g5 Qd8 Bg4 hxg4 Ke2 c5 h4 a5 d6 e5 b6 f5 b7 f4 h5 g3 Kf3 c4 g7 Kf7 d7 e4+ Kg4 g2 h6 Kg6 h7 f3 d3 e3 Bd2 a4 Rh5 e2 Rh3 e1N Na3 f2 Bc1 f1N Bf4 Nf3 Rh2 Ne7 Nh3 Ra7 Nb1 a3 Qe2 Na6 b8B a2 g8Q+ Bg7 Qd5 Be5 Qa8 g1Q+ Bg3 Re8 h8B Qc5 Bf2 Kh7 Rg2 Bf4 Bc3 Ng3 d4 Nef5 Bc7 Qde7 d8N Bd7 Rh2 Nh1 g6+ Kg7 Rg2 Bh2 Bf4 Kh8 g7+ Kh7 Rg3 Qf6 Rg2 Bg1 Rh2 Nc7 Rg2 Ba4 Rh2 Nb5 Rg2 Kg6 g8Q+ Rg7 Qge6 Bh2 Qe1 Rc7 Q6e2 Kh7 Q2d2 Qd5 Na3 N3h4 Rg1 Nbd6 Rd1 Qc5 Qde3 Bb5 Rd2 Nf3 Qa1 Ba4 Qd3 Re1 Nb1 Rc1 Re1 Be8 Re6 Nb5 Qe2 Rd7 b4
q1B5/8/N1nk2p1/Qn4RB/2n2bPp/1pNpP2r/1RrqB2P/KQ2R2N b - g3 1 2 legal: proof: d4 c5 dxc5 e5 b4 a5 bxa5 b6 f3 Bb7 Be3 Bc6 Bd4 Be4 fxe4 exd4 Kd2 Ke7 Kc1 h5 Kb2 f5 a4 d5 c4 f4 c6 b5 a6 h4 e5 d3 e6 b4 c7 f3 c8R f2 e3 b3 a7 d2 a5 d4 a6 d3 c5 Rh5 c6 Nf6 c7 Rh8 Nc3 Rh7 Ra2 Ne4 Nh3 Rh5 Be2 f1Q Ka1 Qf2 Qb1 d1N Rb2 Nc6 Re1 Kd6 e7 Rf5 e8B Nd2 B8h5 g6 Rb8 Rf3 c8B Nc4 Rb5 Rb8 a8Q Bh6 a7 Bf4 Rg5 Rb6 Rg1 Qe1 Nf2 Rh3 Nh1 Qd2 Re1 Qh8 Qb7 Rb5 a8N Rc5 Nc7 Qf8 Qa6 Qg8 Na4 Nc3 Qa5 Nb5 Na6 Qf8 Nc3 Qh8 Be6 Qa8 Bc8 Nca3 Na2 Rc2 Nc3 Nc4 g4
1B1N2rb/K2Np1pR/2r2Qr1/1BB4R/2q1PpP1/2Nb2P1/7q/1QkbRn1n b - e3 0 1 illegal: Lossy FEN conversion
N2N3b/PBK2bBq/2pR1p1Q/4r1n1/k1n2Pp1/r1P3n1/B3n2R/R1N3Qr b - f3 0 1 legal: proof: d4 e5 dxe5 a5 b4 axb4 g4 h5 gxh5 Qh4 Ba3 Qf6 Bc1 Qd8 Kd2 b5 Kd3 g5 Ke4 f6 Kd5 g4 e4 d6 a4 Kd7 h4 b3 c3 b4 a5 b2 a6 b3 e6+ Ke7 h6 Qe8 h5 Nc6 e5 Qg6 h7 Nh6 Bg2 Nd4 Ne2 Bg7 Na3 b1R Qg1 b2 Nb5 Re8 h8N Nhf5 h6 Qh7 Rh2 Ng3 Nf7 Bh8 Nd8 Ra7 Bd2 Rf1 Bf4 b1N Nc1 Nde2 Kc6 Nd2 Bd5 Nde4 Ba2 d5 Be3 Qg8 h7 d4 Bh6 d3 Bg7 d2 Qh1 d1N Qg1 Ra8 a7 Nb2 Bd5 Rd1 Ba2 Bd7+ Kb7 c6 Nc7 Rc8 Na8 Rb8+ Kc7 Qf7 Bc4 Rb6 Ba6 Ng5 Bb7 Nc4 Bh6 Bg7 h8Q Ra6 Qh7 Bh8 Bg7 Ra3 Qh6 Rf8 Qg2 Rh1 Qg1 Ke8 e7 Be6 Kb8 Kd7 e8B+ Ke7 Kc7 Bd5 Bd7 Re8 Be6 Qh5 Bg8 Bf7 e6 Qh3 Bh7 Qh5 Bb1 Qg6 Ba2 Qh7 Kc8 Kd6 e7 Kc5 Kc7 Rg8 e8R Kb5 Re7 Re8 Rd7 Ka4 Rd6 Re5 f4
nR2q1RK/R5B1/NQn1q1rN/3rbR1r/2Pp3b/PB5b/B3Pk2/Rr6 b - c3 0 1 illegal: Lossy FEN conversion
3bNQ2/KPbRB1n1/3RN2r/P4RB1/1bPp1q2/r2pRb2/3k1Rn1/1B3b2 b - c3 0 1 illegal: Lossy FEN conversion
2Nk2q1/Rb4n1/1rB2p2/2p1nB2/3PpP1N/r1BP3R/1qR1Q2K/1R3rRn b - f3 0 1 legal: proof: e4 d5 exd5 b5 a4 g5 axb5 Bh6 h4 Bg7 c3 Bd4 cxd4 gxh4 g4 c5 b4 e5 d3 a5 d6 h5 g5 e4 d7+ Ke7 b6 f6 b5 h3 g6 a4 g7 h2 b7 h4 b6 a3 Nf3 a2 Qe2 h3 Bb2 Qc7 d8R Qe5 Nbd2 Rh4 Rg1 h1N Nc4 h2 Bc3 Rg4 Nh4 Ra5 Bh3 Nc6 Kf1 Nb8 Nd6 Nh6 g8B Ra3 Bd5 Qe6 Rh8 Qg8 Bc6 Rg7 Bf5 Nd7 b8R Kd8 b7 Ne5 Ra8 Rd7 b8R Rb7 Rb1 a1Q Ra7 Qb2 Rc1 Rb6 Rc2 Neg4 Kg2 Ne5+ Bg6 Nf5 Rh6 Ng7 Bf5 Rba6 Rb6 Bb7 Nc8 Qba2 Rbb1 Rb6 Nf3 Qb2 Rh3 Ng3 Nh4 h1R Rge1 Rg1+ Kh2 Nh1 Rec1 Rg3 Rg1 Re3 Qg4 Re1 Qe2 Rf1 f4
1q3r1R/br1bPNkB/4R1N1/1R1qn2K/3b1pPn/4B2b/1nPR4/1QN3B1 b - g3 0 1 legal: proof: f4 b5 h4 g5 hxg5 c5 d4 cxd4 a4 e5 fxe5 Na6 axb5 Nb8 Kf2 f5 Kg3 Kf7 Kh4 h5 e4 a5 b4 d5 b6 d3 b7 f4 b5 d2 b6 a4 e6+ Kg6 e5 a3 e7 d4 e8R a2 e6 d3 Nc3 Nh6 Nh3 Qd5 Ne2 Nc6 b8R Bc5 b7 Kg7 g6 Bd7 Ng5 Rh7 Nf7 Ne5 Kg5 h4 Kh5 h3 Re7 Kf6 g7 h2 g8N+ Kg7 Rb1 a1B Rb5 Bg1 Rd8 Ba7 b8B B1d4 Bd6 Rc8 Bc5 Ra8 Qe1 d1B Be3 d2 Ree8 Rc8 Ne7 Ra8 Ng6 Nf5+ Kg5 Rc8 Nc1 Nh4 Bd3 Bg4 Be4 d1N e7 Rb8 Rh8 Nb2 Qd1 Rh6 Re1 h1Q Re2 Bh3 Rd2 Bde6 Rd6 Bd7 Re6 Rb7 Qe1 Qf1 Bb6 Qfc4 Bg1 Qc7 Bc5 Bc3 Bce3 Qb8 Bf5 Bcd4 Bd3 Nf5 Be4 Rh4 Qf1 Rg4+ Kh5 Nh4 Nf8 Qe8 Na2 Qb8 Qb1 Rg3 Nc1 Rg4 Bh7 Rg6 Ng5 Rf6 Ng6 Rf8 Nf7 Bab6 Bh2 Bbc5 Bhg1 Ba7 g4
2n1q1B1/2NQB2K/q1R1n1p1/r1r2q1B/P2pPbPp/3R2k1/7N/r2BNR2 b - e3 0 1 illegal: No possible last move
2Q1NR1B/rBnR1qb1/2n4P/2B1QB1q/bpP5/1N3b1P/4r3/b1K1nk1B b - c3 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Kd2 Kf7 a4 Kf6 f4 e5 c6 b5 h6 d5 h3 g5 c7 b3 a5 d4 a6 e4 a7 d3 Qe1 e3+ Kd1 d2 Bd3 g4 Ra4 g3 Ra1 b2 Na3 b1Q Nc4 g2 Nf3 g1B Nd6 b4 Nd4 Qd7 Nb3 Nc6 Rh2 Qh7 Rf2 Bd7 c8B Bg7 Bb7 Nge7 Rf3 Rae8 a8B Nd5 Ra7 Nc7 Qg3 Qa2 Bb2+ Re5 Rf2 Qg6 Be4 Rh7 Ne8+ Ke7 f6+ Ke6 f7 Qh5+ Rf3 Bf2 Bd3 Kd5 Bf5 Kc4 f8B Re4 Bc1 Kc3 Bc5 Re6 Qg5 Bh4 Qe7 Bhf6 Qd6 Bd4 Qe5 Re7 Be4 Re6 f5 Re7 f6 Re6 Ke2 d1B+ Ke1 Re7 f7 Re6 Rf6 Bf3 f8Q e2 Bf5 Re7 Na1 Qaf7 Nb3 Nd8 Qg8 Ba4 Qh8 Nc6 Bb2+ Kc4 Kd2 e1N Kc1 Re6 Qd6 Re2 Qd7 Bc3 Qc8 Kd5 Ba1 Ke5 Bb2 Kf4 Ba1 Kg3 Bb2 Qd7 Rf8 Kg2 Ba1 Kf1 Bb2 Bgd4 Qe5 Qdf7 Qg3 Bg7 Qe5 Nd8 Ba1 Bg4 Bh1 Nc6 Bb7 Bf3 Ra6 Na5 Rd6 Nc6 Rd7 Bd4 Bb2 Bc3 Ba3 Ba1 Bb2 Na5 Bc3 Nc6 Kb1 Qfg6 Rd2 Nb5 Qf4 Be5 Ba8 Bh8 Kc1 Ra7 Bb7 Be5 Rd7 Nc7 Qd4 Qf7 Qe4 Bh2 Bh8 Bhe5 Qd4 Bf6 Qe5 Bg7 c4
3r3n/1r1R1Bkb/QqrRP2N/Q2p2p1/3n2Pp/3N3K/1Qpb1B1P/4Qn1Q b - g3 0 1 illegal: No possible last move, all moves rejected
1r1R2K1/nP1Qb3/R3BN2/1Q6/Q1qPp1bq/1rP1kq2/R6B/N1R2br1 b - d3 0 1 illegal: No possible last move
Q1QB4/1rR5/3P1pqb/K2R1qb1/Pp1N4/1PN2B2/2nNq1qk/3R1nN1 b - a3 0 1 legal: proof: f4 a5 c4 d5 cxd5 a4 f5 a3 g4 f6 Qa4+ Nc6 Qa6 Nb8 g5 e6 g6 exf5 Qxa3 f4 Qd3 Ne7 Qa6 Ng8 h3 b5 Qa4 Bg4 Nc3 Kd7 Bg2 Ra6 Nb1 Re6 Qa5 Re7 Bf1 Rf7 gxf7 g5 Qa8 Bf5 Qa6 g4 Nf3 g3 Ng1 Bg4 hxg4 Bg7 Rh4 Bh6 Rh1 Bf8 e4 h5 d4 c5 Kd2 f3 Kc3 g2 d6 Ke6 d5+ Ke5 b3 c4 Kb4 f2 g5 c3 g6 c2 g7 h4 Qc8 h3 Nd2 Kf4 e5 Kg3 e6 h2 e7 Qc7 e8N Ne7 d7 Qc5+ Ka5 Na6 d8R Nb4 Nd6 Rh7 Be2 f1Q Ba3 c1B Bf3 Nf5 g8Q+ Bg7 f8N Nc2 Bb4 Qe2 Ne6 Nfe3 Nd4 Nf1 Qh8 Bh6 N6e4+ Kh4 d6 Rb7 Rd7 Qf5 Nc3 Kg3 Rc7 Bg5 Bc5 Bh6 Bb6 b4+ Rc5 Bg5 Rd5 Bh6 Bd8 Bg5 Nh3 g1Q Qe8 Qgg2 Ng1 Qg6 Qec6 Qh3 Qa6 Qhf5 Qaa8 Bh6 Nc4 Bce3 Rd1 Beg5 Nd2 Qe7 Nge2+ Kh3 Rg1 h1Q Rg3+ Kh2 Ng1 Qg2 Rg4 Qef7 Re4 Qh5 Re7 Q7g6 Rc7 Qhg4 Ndb1 Qge4 Nd2 Qee2 a4
Q1N5/1NrnN2Q/6R1/k1q4b/PprRN1Bq/1P4n1/1Kn1n1Pb/nQB5 b - a3 0 1 illegal: Lossy FEN conversion
B2bnK1R/2nR4/2PQ1RR1/rkN2b2/4pP1P/B2q2bQ/rp2q3/1NN1r3 b - f3 0 1 legal: proof: e4 a5 b4 axb4 g4 c5 d4 h5 dxc5 f5 exf5 Kf7 gxh5 Ke8 Ke2 g5 Kd3 e5 Kc4 b5+ Kd5 b3 a4 d6 c4 Kd7 h4 g4 a5 b4 a6 g3 c6+ Kc7 f6 Kb6 c7 b2 f7 g2 h6 b3 h7 Be7 f8N Bg5 a7 Na6 Ne2 g1B c5+ Kb5 Ne6 Bh2 Rg1 Bg3 Bg2 Qe8 Ra4 Bd8 Rd4 Bd7 c8Q Nc7+ Ke4 d5+ Kf5 Qe7 Kg6 Nf6 Qd2 Rf8 h8R Nfe8 Rf4 d4 Rf6 d3 Qf4 Rb8 a8R d2 Ra7 d1Q Ba8 Qd3+ Kh6 Rg8 c6 Rg5 Nc5 Bf5 Qd4 Rb6 Qd6 Ra6 Qce6 Ra2 Qed7 Bh7 Qh3 Bf5 Rg2 Nd5 Rd7 Ndc7 Nd2 b1R Ba3 b2 Nc1 Rba1 Nb1 Qe6 Rg1 e4 Rg2 Qec4 Rg1 Qe2 Rg2 Qcd3 Rg1 Bg4 Kh7 Re5 Kg8 Bf5 Kf8 Bf4 Rgg6 Bg3 Na4 Rc5 Nb3 Rc1 Nac5 Rf1 Nc1 Re1 Bb4 Ra5 Ba3 Ra2 f4
1RQk2r1/Pb3b2/b4RRr/4BNQB/q3NPpb/RPbn4/3B2p1/3K2n1 b - f3 0 1 illegal: Lossy FEN conversion
N3R2k/8/2bP1q1n/brQ2PN1/pQ1q1RPp/2q2r2/K4N1p/B3nQQB b - g3 0 1 illegal: Lossy FEN conversion
Q3RN1Q/q4BB1/7R/2brp1Nb/p1k1brpP/4PN2/PK2nN2/rQ2q3 b - h3 0 2 legal: proof: f4 c5 g4 h5 c4 hxg4 b4 d5 bxc5 e5 cxd5 Nc6 f5 Nd4 Nh3 Kd7 Ng1 Ne6 fxe6+ Ke8 d4 Ke7 Kd2 b5 Kc3 a5 d6+ Kf6 d5 g5 d7 b4+ Kb2 a4 d6 b3 e7 Ke6 e8Q+ Ne7 c6 f5 c7 f4 Nd2 Kd5 Ngf3 g3 Rg1 g2 Rb1 Ra5 Ne4+ Kc4 Nf2 Nf5 Bd2 Ba6 c8Q+ Qc7 d8N Rd5 d7 Ng3 Ne6 Rh4 d8N Bc5 Nf8 Qa7 Qa8 Rg4 e3+ Ne2 Bb4 Bb5 Qh5 Be8 Qh8 Bh5 Nf7 Rh4 Ba5 Rg4 Bd8 Rh4 Bf6 Rg4 Rh1 g1Q Bg7 Rh4 Bg2 Qe1 Rf1 Rg4 Bh3 Rg1 Be6 g4 N7g5 Rh1 Nh4 f3 Bf7 Rg1 Nfh3 f2 Nhf3 Rh1 Qd3+ Kb4 Qf5 Kc4 Rd1 Rg1 Qb1 Rh1 Rg1 f1R Rg3 Rhg1 Nf2 Rh1 Rh3 Rhg1 Nfe4 Rf2 Nh4 Rf5 Nhf3 Rf4 Nf2 Bd4+ Ka3 b2 Rd3 Rh1 Rb3 Rf1 Rb8 Rg1 Re8 Rh1 Qe4 b1B Qf5 Bc5+ Kb2 Be4 Qfh7 Bhg6 Rh6 Bh5 Qf5 Qea5 Qg6 Ra1 Qb6 Bh7 Qg6 Qe1 Qb1 Be4 h4
1NQ3K1/r1PNB2r/1rb1B3/k3brp1/BbBQR1Pp/2N2p1P/1q1q4/4R3 b - g3 0 1 legal: proof: e4 a5 d4 d5 f4 c5 b4 e5 Ba3 Nc6 Bb2 Nge7 Bc1 axb4 dxc5 d4 Ba3 Nd5 exd5 e4 Bc1 Ne5 fxe5 Bg4 Nh3 Bf5 Ng1 Bc8 Kf2 Kd7 Kg3 Kc7 Kf4 h5 a4 f5 c4 b5 e6 g5+ Ke5 f4 a5 b3 e7 d3 Kf6 b2 Kf7 b4 e8B d2 a6 b3 a7 h4 h3 e3 d6+ Kb7 d7 e2 c6+ Kb6 c7 e1B c5+ Kc6 Nc3 b1Q Ba3 b2 Nf3 Rh6 Kg8 Bg3 Ne5+ Kb7 c6+ Kb6 Be7 f3 Bc4 Bf4 Re1 Bb7 c8Q Rh7 c7 Bc6 Re4 Bh2 Qa4 d1R Bef7 Rd5 Be6 Qa2 Rae1 b1R Qd1 Ka5 Qd4 Qe8 d8N Rb6 Nd7 Be5 Bf1 Qd2 Bc4 Rab8 a8B R8b7 Ba6 Rc5 Bac4 Ra7 Bb7 Qh5 Bba6 Qg4 Bab5 Qgf4 Ba4 Qb2 Nf7 Qfd2 Nb8 Bh8 Ne5 Bhg7 Ned7 Rf5 Bf6 Bb4 Be7 Be5 g4
K4R2/n3rr2/4R1Nq/2p1pr2/2P1BPp1/Np1Qr1Bk/P6B/NB1nQb2 b - f3 0 1 legal: proof: g4 a5 e4 g5 b4 d5 exd5 f5 gxf5 axb4 h4 g4 Rh2 Bh6 Rh1 Bg5 hxg5 Qd6 Rh5 Qd7 Rh1 Qd8 Ke2 Kd7 Kd3 b5 Kd4 h5 Kc5 h4 d4 c6 c4 h3 d6 b3 f6 Ke6 d7 Kf5 f7 b2 f8N b4 g6 b3 d5 h2 g7 e6 d6 Rh7 Ne2 Qe8 Kb6 c5 d8B Ra3 d7 Nh6 g8B Qh5 Qe1 Rf7 Bc7 Bb7 d8Q Ra7 Bg2 Nc6 Na3 b1R Bg3 e5 Ng6 Ba8 Bh7 Rae7 Bcf4 Na7 Nd4+ Kf6 Bf3 Nf5 Be4 Ne3 Ndc2 Qh6 Qd3 Nd1 Ka6 Rb2 Rb1 Bc6 Na1 Re2 Rc1 Re3 Rc3 Bd7 Kb7 Bc6+ Kb8 Bb7 Bf5 Bg2 Be4 Bh3 Ka8 Bf1 Qd5 Re2 Rf3 Re3 Qd3 Bh3 Rf1 h1R Bh2 Bg2 Bfg3+ Kg5 Rf6 Bh3 Re6 Bg2 Bg1 Rh3 B1h2 Rh5 Rh1 Bf1 Qdc3 Ref3 Bb1 Rh3 Qd3 R3f4 Nh4 Rf3 Be4 R3f5 Ng6 Kh5 Bh4 Re3 B4g3 Qg7 Bg1+ Kg5 Rh8 Qh7 Rf8 Qh6 B1h2 Kh5 Nh8 Kg5 Bf4+ Kh4 Bfg3+ Kh3 Ng6 Rc7 Qd7 Rb7 Qd3 Rbe7 f4
2BkR2q/8/Rp1p1NP1/1Q1qn3/1PqPp3/p5N1/1BB2bqQ/KnrNN3 b - d3 0 1 illegal: Lossy FEN conversion
Q1B1Q3/3bRk1p/PRNp1q2/3N4/B4NpP/p1nn4/1N2rrP1/B1b2nKb b - h3 0 1 illegal: Lossy FEN conversion
NK5k/p1n2B2/4RpN1/qnP1NbQ1/q4PpQ/1Q1p2P1/rb1q3B/1Q2rR2 b - f3 0 1 illegal: Lossy FEN conversion
Q2nN2k/1p3B2/QK3p1n/1Np1BPQ1/1Ppp4/Q3rr2/R2Pb1rR/2R1rq2 b - b3 0 1 illegal: Other
BNq3k1/1R1nR1R1/1N1p3P/P5R1/1B1Pp1rq/q7/1B3n1r/3BKnnQ b - d3 0 1 illegal: Lossy FEN conversion
rq2rR1k/p4P2/3R2Bn/Pp3B2/nKp1BbPp/1b1B3Q/1R1N3n/3N2R1 b - g3 0 1 illegal: Lossy FEN conversion
1Qq3R1/1Nr3B1/rR3b2/pK3N2/4npPr/Nn1N1P1q/P1Qn1N1p/4N1k1 b - g3 0 1 legal: proof: e4 c5 d4 d5 h4 e5 dxe5 g6 b4 Be6 bxc5 Bf5 h5 g5 Be2 Bg6 hxg6 Kd7 Bg4+ Ke8 Bh3 g4 Ba3 gxh3 Bb2 Qe7 Bc1 Qd8 Kd2 Kd7 Kd3 Ke6 c4 f5 g7 a5 c6 b5 c7 h5 c8Q+ Nd7 c5 b4 c6 f4 c7 h2 Bb2 d4 Kc4 h4 Na3 b3 Qb8 d3 c8N h3 Nf3 d2 Nd6 Ra7 Rb1 Nc5 Ne1 Rc7 f3 Nf6 g8N Qc8 Nh6 Bg7 Qc2 d1R Ndf5 Rd6 Ng4 Ra6 Bc3 b2 Bd4 Kd7 e6+ Kc6 e5 Nfe4 e7 Rh7 e8N Bh8 Ra1 b1N e6 Bg7 e7 Bh8 Bf6 Nbd2+ Kd4 Rh5 Neg7 Rh6 e8N Rh5 Rd1 Rh6 Ned6 Nc4 Nb7 Rh4 Ne6 Bg7 Rf1 h1Q Rg1 Nd3 Nec5 Nc1 Be5 Bh6 Bg7 Bg5 Rf1 Be7 Rf2 Kb6 Qa4 Bf6+ Kd5 Qh2 Rd4 Qg3 Ncd3 h2 Qd1 Qh3 Rb2+ Nb3 Qc2 Ncd2 Nb5 Nbc5 Rbb4 Nb1 Kc4 Kc6 Rd8 Nb3 Rg8 Kb6+ Ndc5 Kc6 Na3 N1d2+ Kd3 Kd5 Rb6 Nb1 Nf2 Ke5 Kc4 N1d2+ Kb5 Kd5 Nh1 Ke5 Ne7 Kd4 Ncd3 Ke3 Nf5+ Ke2 Nhf2 Kf1 Re8 Kg1 Rf8 Kf1 Rg8 Kg1 g4
1QB2n2/bRK3Rk/2P4n/5N2/Qqq2pPp/3P3q/Q3Np2/Rr1Rr2Q b - g3 0 2 illegal: Lossy FEN conversion
2RBk3/1n1r2RP/1KRr4/P5p1/qPp1qqq1/N1N1BN2/3bB1P1/1Q3bb1 b - b3 0 1 illegal: No possible last move, all moves rejected
2R1BrR1/BnBPq1pp/1Kp1R3/6N1/5bpP/1P2P1q1/bNQ5/k2N1nn1 b - h3 0 1 legal: proof: d4 d5 a4 a5 c4 b5 axb5 e5 g3 f5 dxe5 d4 g4 fxg4 Ra4 Ra6 Ra3 Rd6 Ra1 Rd5 cxd5 Kd7 Nd2 Ke7 Nb1 Ke8 Kd2 Kd7 Kd3 a4 Kc4 d3 f4 a3 f5 a2 b6 d2 Kb5 Ne7 f6 Rg8 e6+ Kd6 b7 Ke5 d6 Kd4 b3 Nec6 f7 Qd7 e7 Qd8 e8N Nd7 b8B Rh8 Qc2 d1N Nc3 Nde5 Nh3 Na5 Bf4 Qe7 Rc1 a1Q Ng5 Ne3 Nd1 Nf3 d7 Qc3 Nd6 Nb7 Nc4 Ng1 Ncb2 Qe1 Bg2 Qg3 Be4 Nf1 Bg6 Rg8 Ra1 c6+ Kb6 Rh8 Bfc7 Rg8 Ra8 Rh8 Nf2 Rg8 Ba7 Rh8 Qe4+ Kc3 Bh5 Rg8 Qg2 Kc2 Nfd1 Kb1 e3 Ka1 Qc2 Qe4 Rb8 Bd6 f8R Bf4 Be8 Qe7 Rf6 Rf8 Re6 Nd6 Ra8 Ba6 Rd8 Bd3 Rc8 Ne2 Rg1 Nb7 Rg2 Bf5 Rf2 Be4 Qc5 Bb1 Qc2 Ng1 Rf3 Bd6 Rf4 Ba2 Rfe4 Rf2 Rf4 Be5 Rf8 Bd6 Rh8 Rf8 Rg8 Bf4 h4
2bBB1rn/NPB1R3/kr2R3/Q2bP3/n1Pp3K/1b1P3n/bq2Q3/2qQ3N b - c3 0 1 illegal: Lossy FEN conversion
1Rn1bq2/2k1bN2/1nQ2n1Q/4N1rr/2PPBpPb/Q1K5/1PR4B/N4nq1 b - g3 0 1 illegal: Lossy FEN conversion
2nq1n2/r1Q1pbN1/1bP1P1PN/1Q3B2/1PpR1n2/2KR2B1/B4kqq/2R4b b - b3 0 1 illegal: Lossy FEN conversion
3n1r2/P1Qr1BBR/1Q2p1bP/2Q1b1rn/4Pp2/5PRK/b4b1N/1N1r1R1k b - e3 0 2 illegal: Lossy FEN conversion
rnqq2B1/1bPN1RR1/1R1QPp1R/k2r2B1/3pP1K1/b5n1/1P3q2/6NR b - e3 0 1 legal: proof: f4 c5 g4 e5 fxe5 h5 gxh5 a5 d4 b5 a3 b4 axb4 cxd4 bxa5 Qe7 a6 Qd8 Kf2 d5 Kf3 Kd7 c4 Kc7 h4 Kb6 a7 g5 h6 f6 h5 d3 c5+ Kb5 h7 d2 h6 Bh3 c6 Be7 c7 Be6 Bg2 Qc8 Ra6 Bb4 Nc3+ Kc4 Rb6 Bd7 Na4 Ba3 Nc5 Bc6 Nd7 Bb7 Kg4 Ne7 e6 Nf5 Be4 Rd8 h8R Ng3 h7 Bb4 Rg8 Ba3 Nc5 Rd7 h8R Rd6 Rg7 Rd7 Ra6 Kb5 Rb6+ Ka5 R8h6 Rd6 Bh7 Rd8 Qf1 d1Q Nd7 Qd4+ Bf4 Qf2 Bg8 d4 Ne5 Rd5 Nd7 Qd8 Qc1 Qc8 Qc6 Qd8 Qd6 Qc8 Kh3 g4+ Kh4 Nf5+ Kh5 g3 Kg4 g2 Bg5 Ng3 Nh3 g1Q Rf7 Qb1 Ng1 Qg6 Rg7 Qge8 Rf7 Na6 Rg7 Rb8 a8R Qed8 Qe7 Qe8 Nc5 Qcd7 Qd6 Rd8 Rc8 Qf8 Ra8 Re8 Rd8 Qde7 Rd7 Ra8 Rb4 Nb8 Rb6 Qee8 Rdf7 Qc8 Nd7 Qfd8 e4
2r1N1kb/1K1PR2R/2r3q1/3pP1P1/1p2Pprn/N1B4N/1R4b1/RB2r1Qn b - e3 0 1 illegal: No possible last move, all moves rejected
1R1Bq3/3B4/2n2R2/pR1P1pBP/qrP1nPp1/Q1p3k1/1R4b1/2KNbN1q b - f3 0 1 illegal: Lossy FEN conversion
r1Nbr1B1/n4q2/pB2RN2/7r/1P1bpP2/1BRp2B1/Pk2P3/bb1n1KQN b - f3 0 1 illegal: No possible last move, all moves rejected
2RB4/b1qn2B1/PpN2qBp/1p4B1/1PpRQ2P/q1P1N1q1/r1N4n/1K1bk3 b - b3 0 1 illegal: Lossy FEN conversion
K4Bk1/1nNRQ1q1/5NP1/p3Qq2/Ppr1RN2/1Pp1NB2/1r1Pq2b/4n3 b - a3 0 1 illegal: Lossy FEN conversion
rb1NB1bK/Rnn1Q1BB/1p2Pb2/3N1P1B/1RQ2Pp1/8/2kp2Pq/1q2b3 b - f3 0 1 illegal: Lossy FEN conversion
Brb1N1R1/7r/PpbQ1K2/1n1k1BNR/pP1PpBr1/P3rQ2/1Bp5/1q6 b - d3 1 2 illegal: Lossy FEN conversion
1nNr1bN1/q6p/RPr5/3pQQPN/2p2Pp1/Bnp3k1/1B1P3N/5bKR b - f3 0 1 illegal: Lossy FEN conversion
1K1BR1b1/2pq1PR1/k7/bpN1BBp1/pPQB1r2/P1b5/5P2/2Bq2nR b - b3 0 2 illegal: Lossy FEN conversion
1NB2q2/Rb1P3k/rp4p1/R1B3n1/1PpPr1B1/K1bp2P1/2q1RQ1B/2Q4q b - b3 0 1 illegal: No possible last move, all moves rejected
2R1q1b1/BR2pn2/5rN1/3B1p1P/nrPpRP2/4PqBB/5knK/nN3N2 b - c3 0 1 illegal: Lossy FEN conversion
1Qnk1rNr/Pn1P1Rb1/1NK2B2/2b2q2/4RRPp/r1P2N2/5R1b/3Nr3 b - g3 0 1 illegal: Lossy FEN conversion
1r1R2RB/KB1r2B1/b2Q1q2/1p1PN2P/RPpk1p2/b3P1bN/2n3P1/2r5 b - b3 0 1 illegal: Lossy FEN conversion
k1r1n1RR/7b/N1r1PBPp/r1N1R3/Q1Kn1Ppq/2PRq2P/6r1/2n2B2 b - f3 0 1 illegal: No possible last move, all moves rejected
1B3br1/2Pn2Q1/PBP1K1RB/1rP2p1q/N1nbpP1n/4n3/R1pNB3/1k6 b - f3 0 1 illegal: Lossy FEN conversion
3R2Q1/Rk2BbBn/2N5/1r2q2p/KN1PpnpP/1P3B2/2P1P1p1/bb2bB2 b - h3 0 2 illegal: Lossy FEN conversion
k3qN2/1nr2p1R/2B2b1R/N1Bn4/bQKpnPpP/Prn2n2/R2P2P1/3R4 b - h3 1 3 illegal: No possible last move, all moves rejected
1B2r3/1Pk2rp1/5R2/NKNpbbq1/n1pPP1P1/1R2p1n1/1B3nP1/1QB2B1n b - d3 0 1 illegal: Lossy FEN conversion
QqBB4/1b3qr1/3Pbq1R/b6n/p2Pp2q/1BP1P1Qk/K1P5/N1RR4 b - d3 0 1 illegal: Lossy FEN conversion
Q1N2RQr/R1QP3P/qPr1N1p1/bkqn4/b1N3Pp/8/K2n3P/b1b4B b - g3 0 2 illegal: No possible last move, all moves rejected
1B1b1Q1n/p1P2r2/1P1R2Rr/P2N3N/1qNrPp1Q/3p1b1K/1P4Q1/1k1r1n2 b - e3 0 1 illegal: No possible last move, all moves rejected
1KRn1N2/1R1bB1pR/P4r2/3p1R1P/2QP1pP1/2NnpP1N/pp1b3k/q7 b - g3 2 3 illegal: No possible last move, all moves rejected
n1qb3r/PQ5b/QP1Np2K/2n2P1b/1Q1BPpb1/6PN/3b1R1r/4k1QR b - e3 0 1 illegal: Lossy FEN conversion
nqrNr1BQ/1n3Nb1/3Q4/1n5b/1KPpRR2/p2PbP1k/PQ3Pb1/3Q4 b - c3 0 2 legal: proof: g4 e5 b4 h5 gxh5 f5 d3 c5 bxc5 f4 Bd2 f3 exf3 e4 Ke2 e3 Bh3 exd2 Bg2 Nc6 Bf1 Nb8 h4 Ke7 h6 Kf6 h5 Kg5 h7 b5 c6 d5 h6 a5 c7 b4 Ke3 a4 Kd4 b3 Kc3 b2 Na3 b1N+ Kd4 Na6 Nb5 a3 Nh3+ Kh4 Qc1 d1B Nc3 g5 Ne4 g4 Nf6 g3 Nd7 g2 Qb2 g1B Nc5 Ne7 Ng5+ Bh2 Bh3 Bg4 c8Q Nc3 Nce6 Nc5 Qcb8 Be2 Nf7 Bf4 Rae1 Bf1 Re4 Nb7 Qd6 Qb8 Ned8 Bh5 Be6+ Bh3 Qb1 Nc8 Qd1 Nb6 Rhe1 Rg8 h8Q Bg2 h7 Bh6 Qhe5 Re8 h8Q Bg7 R1e2 Ra5 R2e3 Rc5 Re1 Na8 Rg1 Bh1 Rg4+ Kh3 Qf6 Bc1 Qfe5 Rc8 Rgf4+ Kg2 Nh6 Kh2 Bg8 Bg2 Nhf7 Kh3 Nc6 Nd8 Kc5 Nb5 Qb2 d4 Kb4 Nb7 Ncd8 Be3 c4
2n1N3/R2K1Bk1/1qr3n1/q3qp1r/1B2PbpP/P1N2bN1/P5P1/2R1Bb1B b - h3 0 1 illegal: Lossy FEN conversion
1qN3qR/P2RrbbQ/BRp2p1P/5P2/2Pp2n1/k2Pqb2/3RqP2/1K2N3 b - c3 0 1 legal: proof: e4 b5 g4 a5 b4 Bb7 bxa5 Ra6 g5 Rf6 g6 Rf5 exf5 Bc8 Ne2 f6 Nbc3 h6 Ng1 Nc6 Nb1 Ne5 Bb2 Nf7 Bd4 Nd6 Be3 Nf7 Bg5 hxg5 Bd3 Bb7 Qc1 Qb8 gxf7+ Kd8 Be4 Kc8 Bf3 Ba6 Bh5 Kb7 Qd1 Qd8 Be2 Kc6 Bf1 Bc8 a4 Kc5 h4 Kb4 a6 d5 a7 e5 a8R e4 a5 d4 d3 g4 Kd2 g5 Kc1 g3 a6 g4 a7 g2 h5 e3 Ne2 g1Q Kb2 g3 Ra6 g2 Rb8 Rh7 Rc6 Bg7 f8R Bb7 Nd2 Nh6 Ne4 Ng4 Kb1 Ka3 Rd6 b4 Nf4 b3 Rd7 e2 Nd6 e1Q Nc8 b2 Rh8 Bf3 Rb6 Qe2 h6 Qde8 Qe1 Qh2 Rg1 Q8e3 Rh1 g1Q Bg2 Ba8 Bb7 Qhg3 Ba6 Bf3 Ng2 c6 Bb7 Qb8 Ba6 Qgh2 Qg1 Qhg3 Ne1 Qg2 Ne7 Qgg3 Qg2 Qg8 Nc8 Qb8 Qh2 Bf8 Qh5 Re7 Qf7 Bg7 Ng2 Re5 Rd1 Re7 Ne1 Ka4 Ka2 b1B+ Kb2 Ba2 Rd2 Bad5 Kb1 Ka3 Qg6 Be6 Qh7 Bf7 c4
n1R1R2n/1p2q2r/2q1BBRr/1BN5/1Q1Pp3/4QBN1/1n2B3/KNQ1b2k b - d3 0 1 illegal: Lossy FEN conversion
qRqQbN2/bR2Q1nB/3K4/3Q2q1/1pP2BR1/b3r2R/r4BkN/2Qn1N2 b - c3 0 1 illegal: Lossy FEN conversion
nR3K2/1N1pBb1q/4qbr1/1Q1P1n1b/Pp1BNnRR/4Q3/3RB1R1/2k1N3 b - a3 0 1 legal: proof: e4 a5 b4 g5 bxa5 f5 exf5 b5 h4 b4 hxg5 Ra7 c3 Rb7 c4 Rb5 cxb5 Bb7 Qa4 Ba6 Qd1 Bc8 Ke2 Kf7 Ke3 c5 Ke4 e5 Kd5 h5 f4 h4 d4 c4 g4 e4 g6+ Kf6 g7 h3 a6 c3 g5+ Kf7 b6 e3 a7 h2 a8R c2 f6 Kg6 b7 Kf5 g6 e2 f7 e1N Nc3 Qh4 Be3 c1Q Nf3 Qf6 Ne4 Qb6 Qd2 Kg4 f5 Qf6 Be2 Nc6 b8Q Na5 Qb5 Bd6 f8B Nd3 Be7 Rh6 Rb8 Qc2 Rad1 Nc4 Bf2 Ba6 Qe3 Be5 Rd2 Qb6 f6 Qb1 f7 Bf6 f8N Kf5 Rc1 h1B Ne1 Bf3 Ne6 Bh5 Nd8 Qc2 Nb7 Qb1 Qh3+ Kf4 Bg1 Nd6 Qe6 Ne8 Rc6 Nc7+ Kd6 Na8 d5 Qc2 Bd4 Qb1 Bd8 Ne7 g8R Qc2 g7 Bf7 Rh8 Rg6 g8R Qb1 Rh2 Qc2 Rg2 Qb1 Bb2 Ke3 Rh8 Nf4 Rh4 Qd4 Rc4 Qe5+ Kc5 Nf5 Be7 Qc2 Nf2 Qd1 Bd8 Qa4 Qa5 Bb5 Rd1 Nh5 Bf3 Nfg7 Qe8 Qe4 Kd6 Qc2 Qa6 Ba4 Qb5 Rg4 Rdd4 Qd3 Qe7 Kd2 Qe6 Be5+ Ke7 Bd1 Kf8 Bf6 Be7 Rg3 Bc3+ Kc1 Bg4 Qde2 Rd2 Qh7 Re4 Qe3 Bd4 Nf5 Rf4 Qe5 Bf3 Qd6 Qe3 Qe6 Ne4 Rg6 Rfg4 Nf4 R4g3 Bc2 Rg5 Bd3 Bd1 Be2 R5g3 Bg4 Be2 Bh5 Rg5 Ng3 Rgg4 Nf5 a4
bqBrB2r/1k1p3p/1N1R1BN1/b3qn1N/3pP2Q/r6P/BK4R1/1R3Q1B b - e3 0 1 illegal: Lossy FEN conversion
2BN1B1R/n2KB3/3R1Rb1/4p2p/pPnqPQ1Q/b2b3R/5bk1/Q1rR3N b - b3 0 1 legal: proof: f4 d5 a4 g5 fxg5 b5 axb5 d4 h4 d3 g6 Ba6 cxd3 Kd7 d4 Ke8 d5 Bc8 g4 a5 h5 Ra7 g5 Ra6 g7 Rg6 hxg6 Bf5 Nc3 Bd7 Nb1 Bc8 Kf2 Kd7 Kg3 Kd6 Kf4 c5 d4 f5 e4 h5 b6 c4 b7 a4 Nc3 e6 Nb5+ Ke7 Ke5 c3 d6+ Kd7 d5 f4 Nc7 c2 Nh3 f3 Ba6 Ne7 g8R f2 g7 f1B g6 Bg2 Bh6 c1B Nf2 Bg5 Rh3 Bh4 Nh1 Rh7 Rh8 Bf1 g8R Bd3 g7 Bb5 Qg4 Nf5 Rd1 Bfe7 Rf8 Bc6 g8Q Ne3 Rf6 Bb5 Bf8 Be1 Qh4 Bd3 Qg1 Rg7 Qf1 Rg2 Qg1 Rc2 Qf1 Bf2 Qg1 Qe8 Qf1 Rc1 Qe1 Kd8 d7 Ba3 Qf1 Qg6 Qg1 Qg7 Qf1 Rc5 Kd6 Nc6 b8Q e5 Qb4 Qh7 Qd2 Na7 Ke6 Nc4 Qdf4 Bb7 Qe1 Bc6 Bc8 Bb5 Ne8 Qg7 Nd6 Qg1 Nf7+ Kc7 d8R Be8 d6+ Kb6 d7 Kc6 Nd6 Bg6 Nf7 Kb5 Qed2 Kb6 Qc1 Rc7 Qa1 Kc6 Bg7 Kc5 Bf8+ Kd4 Re8 Bc5 d8B Ba3 Bde7 Rc5 Nd8 Rc7 Ng3 Rc5 Kd7 Rc6 Qf5 Ke3 Nh1+ Ke2 Qff4 Rc5 Rc1 Qd1 Rd6 Kf1 Rf6 Kg2 Rd6 Qb3 Rd1 Qb6 Rh6 Bh7 Rhf6 Bg6 Bh6 Rc6 Rh8 Qd4 Bg7 Nd2 Bh6 Rc1 Bhf8 Nc4 b4
NR1Nb1qQ/n1Rn1q2/6Pb/N2BB3/3QPpq1/k2K3Q/1p5n/4Q1BR b - e3 0 1 legal: proof: c4 h5 f4 e5 b4 f5 g4 a5 bxa5 d5 cxd5 b5 fxe5 g5 Qc2 f4 Qd1 Ra6 h3 Rf6 h4 Rf5 gxf5 g4 Ba3 Rh6 Bb2 Rg6 Bc1 Rg5 hxg5 Bg7 Bh3 Bh6 Bf1 Bf8 d4 Ke7 Kd2 c5 a4 b4 f6+ Kd7 g6 b3 a6 c4 d6 Kc6 a5 Kb5 f7 Kb4 d7 h4 d5 h3 e6 h2 d6 b2 a7 g3 a8Q c3+ Kd3 c2 e7 g2 e8Q Qg5 d8Q Nc6 d7 Qc5 a6 Nh6 a7 Ng4 Nh3 g1Q Ng5 Nd4 Be3 c1Q Bg2 Bg7 f8R Qc6 Qe1+ Kb3 Ne6 Q1c5 Na3 Qg5 Rc1 Nf6 Nc4 Qh4 Na5+ Ka3 Bf3 Bb7 Qac8 Nb5 a8N Na7 Rh8 Qgg5 Rf1 h1N Qg8 Qb6 Rc7 Ng3 Rh1 Bh6 Bg1 Nf1 Qg7 Qd6+ Bd5 Bc6 Qdf8 Nh2 d8B Qhh5 Qe8 Qe7 Qeg8 Ne4 Qd4 Nf6 Qg7 Ba4 Re8 Qe5 Qh8 Qh7 Qd7 Qg8 Be7+ Qd6 Rb8 Qg5 Bf8 Qe7 Bg7 Qef7 Nd8 Bc6 Qf5 Be8 Qh3 Nd7 Be5 Qg4 e4
2N1R3/Kn1prnr1/1BQNQ3/1B2Q1qN/1R3Pp1/R2p4/1qbP2B1/2Nk4 b - f3 0 1 illegal: Other
N6N/R3q3/5R1B/nb1B2KR/bb1kN1Pp/1b1r1q2/1QQ1B2P/qR1Q3r b - g3 0 1 illegal: Lossy FEN conversion
1b3NB1/p1R5/2Nr1r2/1B1rB1NR/KBpP2nb/B1k2B2/P1n1b1Q1/r3R3 b - d3 0 1 illegal: Lossy FEN conversion
2Q4Q/1q1N1RNR/1Nrb1Pn1/n4B1r/1Q2pPp1/7N/KNb1r1N1/2k1B2n b - f3 0 2 legal: proof: e4 b5 g4 d5 c4 h5 cxd5 f5 exf5 b4 gxh5 b3 axb3 Rh7 b4 Rh6 b5 Rh8 d4 Kd7 Kd2 Kd6 Kc2 e5 Kb3 a5 h4 c5 h6 g5 h5 a4+ Ka2 c4 b4 a3 h7 c3 h6 c2 f6 g4 b6 Bf5 b5 Nd7 b7 Qe7 b8N Qd8 b6 Qc8 b7 Ra7 Qd2 Qe8 Nc3 Nc5 Nh3 Ra5 Nd1 Qg6 Bd3 Nd7 Nb2 Rc5 Qb4 Ne7 Bd2 c1R Be1 Be6 Bf5 e4 Rh2 Ne5 Nd7 Rc3 b8N Qf7 Nb6 Rc2 N8d7 Re2 Rc1 N5g6 Rc2 Rg8 h8Q Rg7 Rc4 Rh7 Qg8 Rh8 h7 Qg7 Qb5 Rc6 Qb4+ Kc7 d6+ Kb7 d5 Ka6 Kb3 a2 Rd4 a1N+ Ka2 Nb3 Rc4 Rc8 Rc7 Na5 Rb7 Rc6 Rh1 Qf7 Rh2 Bg7 Qc8 Bf8 Rh1 Nf4 Rh2 Nh5 Rh1 Ng3 Rh2 Rg8 h8N Rg5 Ng6 Nh1 Nh4 Rh5 Ng2 Rec2 Ne5 Rd2 d7 Re2 d8Q Ng6 Ned7 Bd6 Qh8 Qh7 Qa3 Kb5 Qb3+ Bb4 d6 Bc4 Rc7 Bd3 Qc3 Qe7 Rb7 Ba3 Qb4+ Ka6 Ne5 Nb3 d7 Nf4 d8N Bc2 Ne6 Rh4 Qa4+ Na5 Nd1 Bd6 Qb4 Ng6 Nhg5 Qc7 Ng7 Rh7 Qd2 Kb5 Rh6 Qb8 Rf7 Qb7 Nh3 Kc5 Ned7+ Kb5 Na4 Kc4 Qb4+ Kd3 Rh4 Rh5 Nab6 Rg5 Rh7 Rh5 Rh6 Ba4+ Nb2+ Kc2 Rh7 Kc1 Ne3 Bd1 Ng2 Bc2 f4
1NR1N3/1B1bN1n1/PBb1R2q/N2R1Q2/3KpPn1/bp2R2r/p3B1r1/2k3N1 b - f3 0 1 illegal: No possible last move, all moves rejected
1BRn1rN1/2N1Pn2/2qpp2B/Q6B/1BpP1Q1b/4B2n/4NR2/1bkbK2B b - d3 0 1 illegal: Lossy FEN conversion
N4B1Q/4Bn2/1Q3Rn1/4n3/b1PpbkbB/Pr2qB2/5bRR/K1R2R1N b - c3 0 1 illegal: Lossy FEN conversion
2B3bR/B1N1Q3/p6p/N3K1RR/q1Bn2pP/b1pqk3/P2q1BB1/2rQ1R2 b - h3 0 1 illegal: Lossy FEN conversion
B5BK/2b2b1Q/k2bPr2/1Q1n2qq/BrPpR3/BN2Q2n/1R3N2/n1N1Q3 b - c3 0 1 illegal: Lossy FEN conversion
2Q3q1/Brn1R2n/2b1n1RK/Q2N1r1Q/3Pp1B1/2B1P2q/1k2N2p/1N2BqQ1 b - d3 0 1 illegal: Lossy FEN conversion
4KR1N/3QbRpB/qBb2B1p/3P1nR1/3pPk1N/R4r1N/1Q1n1r2/r2B4 b - e3 0 1 illegal: Lossy FEN conversion
R3Rq2/B1r3BP/1Bp1r1n1/B7/Pp2B3/1k1K2N1/1b1R1rbQ/b2B1R1N b - a3 0 1 illegal: Lossy FEN conversion
k4K2/N4bR1/4Q2b/B1N3QB/pPbQpRqB/3rPnRb/P2b4/n2N4 b - b3 0 2 legal: proof: g4 c5 h4 f5 gxf5 b5 c4 a5 cxb5 g5 d4 g4 dxc5 Ra6 Qd3 Rg6 Qd1 Rg5 hxg5 Bg7 Qb3 Bh6 Qd1 Bf8 Kd2 d5 Kc3 Kd7 Kd4 Kc7 Ke5 Kb7 f4 h5 b6 a4 e3 d4 g6 g3 c6+ Ka8 c7 h4 g7 h3 f6 g2 f7 h2 f5 d3 f6 d2 b7+ Ka7 Nf3 g1B Nc3 e6 Ne1 Na6 b8N Bf2 Nc6+ Kb7 Be2 Nc5 Bh5 Qe7 Na7 Qe8 Rg1 h1B Nd3 Nb3 Rg3 Qd7 Nc5+ Ka8 Qg4 d1B Qd4 Rh6 Bd2 Ne7 g8Q Be1 Qg5 Be2 Nd1 Nf5 Ba5 Bd2 Rc1 Bg7 f8B Na1 Be7 Bd5 Bd8 Bf8 f7 Bec4 Bf6 Bg7 f8R Nh4 Rg8 Bf8 Rg7 Rh8 Be7 Nf3+ Kf6 e5 Bd8 e4 Rc2 Bb4 Rf2 Bf7 Be7 Qg4 Bd8 Nh4 Rf4 Nf3 Be7 Bd2 Bd8 Bd6 Be7 Bf5 c8Q+ Bb8 Qa6 Rd8 Qe6 Rd6 Bed8 Rd5 Ke7 Bc7 Qdf6 Rd3 Qd4 Be5 Kf8 Bf6 Qh6 Bg5 Qhg6 Bh6 Bh4 Qg5 Qgf6 Bh3 Qfe7 Qf5 Qg5 Qg4 b4
NR2B1R1/b2K1Pr1/1P1b2kR/n1Qb3r/3b2pP/NRB1qq2/5B2/1NR1n3 b - h3 0 1 illegal: Lossy FEN conversion
N7/1qnnPP1Q/Q1R2rR1/3N4/2b1BNpP/b3b3/1N2rBK1/3qkNRn b - h3 0 1 illegal: Lossy FEN conversion
N3B1nB/q2B2p1/1rB2k2/nR1n1Pr1/1N1B1pPQ/1n1N1P2/n4n2/Q3KR2 b - g3 0 1 illegal: Lossy FEN conversion
n1BNRKB1/krpq1n2/3P2Q1/N1PB4/1p1BR1pP/b3Br2/2r5/R1n3Q1 b - h3 0 1 legal: proof: g4 d5 e4 a5 exd5 h5 gxh5 e5 b4 e4 bxa5 e3 f3 Bf5 Bg2 Bh7 Bf1 Be4 fxe4 Bc5 Qf3 Bd6 Qd1 Bf8 Ke2 Kd7 Kd3 Kc8 Kc4 g5 a4 f5 d4 b6 h6 Kb7 e5 g4 a6+ Ka7 d6 e2 Kd5 e1R Ke6 f4 Kf7 f3 c4 b5 d5 b4 e6 f2 a5 Re5 d7 Qh4 d8R Nc6 e7 Rh5 e8Q Nge7 d6 Ng8 h7 Rb5 c5 Rb6 Ne2 Bg7 Na3 Nf6 Nd4 Ne4 Nc4 Ng3 Ne6 Bf6 Be3 Rg8 h8B Rg7+ Kf8 Ne2 Qg6 Rh7 Re8 Ne5 Nd8 Nc1 Bg2 f1N Bd5 Bg5 Bg8 Nf7 Bhd4 Nd2 Re1 Rb7 Re2 Qf2 Qg1 Qf5 Re4 Rh3 Re8 Rf3 Re4 Kb8 a7+ Kc8 a6 Qd7 Na5 Nc4 Re1 Nb6 Re2 Rf2 Re1 Rc2 Re8 Rab8 a8B Bf6 Bf2 Bh8 R1e4 Bf6 Bde3 Bb2 Bd4 Ba3 Bfe3 Ra7 Bc6 Na8 Bd5 Rb6 Be6 Rab7 a7 Ra6 Rf4 Nb6 a8B Kb8 Re4 Ka7 Ba2 Rb8 Bb7 Na8 Bc8 Rb7 Be6 Bb2 Nb3 Ra3 Na5 Rac3 Bd5 Ba3 Bh6 Rg3 Bhe3 Rf3 h4
2BnN1Bk/2Nqp3/4Q3/2n3p1/PpR1PQ1q/1P3r1B/2RR4/b1BbrnKB b - a3 0 1 illegal: No possible last move, all moves rejected
3k3Q/bbn5/3B1rq1/3R2P1/1b2pPn1/1pr1B1KP/N1RNQ2R/1Rb1QB2 b - f3 0 1 illegal: Lossy FEN conversion
3B4/3Kn2q/1B2p1N1/bk4PQ/RPpNB3/2b1r1nQ/P2Np1bR/r3Q1B1 b - b3 0 1 illegal: Lossy FEN conversion
R2Rr1Bb/2qpQ3/2BR4/n1N1BPNP/2r1QpP1/5B2/nkp1Qn2/1b3K2 b - g3 0 1 illegal: Lossy FEN conversion
BNrQ4/k1PQ1PN1/2n1bR2/Brn3p1/4Pp2/bNB4q/1R3Npq/2K3Q1 b - e3 0 1 illegal: Other
b2Nk2q/1r1R3q/K2b2QB/1Qpp4/4PPp1/N1NQ2Pn/2Qn4/1R3BRr b - f3 0 1 illegal: Lossy FEN conversion
Q1R3Q1/k2pK3/1brn2BR/4Qp1B/NqN1pP2/nq4PB/P2Bn3/4N2b b - f3 0 1 illegal: Lossy FEN conversion
KR5r/N4q1r/p1Npn2k/1r1b2pN/PpPPNQ1R/5N2/1R3nBb/B6R b - c3 0 1 legal: proof: e4 f5 exf5 h5 b4 c5 bxc5 Nf6 g4 Ng8 gxh5 Qa5 Qe2 Qb6 Qd1 Qd8 Ke2 Kf7 Ke3 b5 Ke4 e5 Kd5 g5 d4 Kg7 h4 e4 f4 e3 a4 e2 h6+ Kh7 h5 e1R f6 a6 c6 b4 f5 d6 c7 Qd7 f7 Qe8 f6 Bg4 c8N Bd7 Nc3 Re2 Ra2 Re6 Bg2 Bb5 Qf3 Bf1 Rb2 Be7 f8R Nd7 Kc6 Nb8+ Kb7 Re1 f7 Bd3 Qf4 Re4 Na7 Re6 Ne4 Bf6 Nf3 Be7 Bd2 Bb5 Bc3 Nf6 Rg8 Nbd7 f8R Qf7 Rb8 Qg6 Rgc8 Nf8 Rc7 Kg8 h7+ Kg7 Rcc8 Qf7 h6+ Kg6 Rh4 Bc4 Rh1 Rg8 h8N+ Kh7 Rd8 Ng4 Ng6 Nf2 Nge5 Rh8 Nec6 Re5 Rh4 Kg6 h7 Bd5 Rd7 Ne6 Rc7 Rg8 h8N+ Kg7 Rd7 Bf6 Ng6 Rh8 Rc7 Rh7 Re7 Nc7 Ree8 Rf5 Rh8 Be5 Rh1 Rh3 Rh4 Rh2 Nf8 Ne6+ Nd7 Rh3 Ra2 Rh2 Ba1 Kg6 Rb2 Kg7 Rg4 Rh7 Rgh4 Kg6 Qd2 Bh2 Qf4 Nc7 Ndf6 Ne6+ Kb6 Re5 Nh5 Rf5 Rb7 Rah8 Rb8 Nc7 Kb7 Ne6+ Ka8 Kh6 Rg8 Bb3 Re8 Rb5 Rb8 Bd5 c4
1KR3Q1/1n3Q1r/q6Q/4kr2/2n2pPq/1p1N3R/2RP1r1P/BR1BNQ1n b - g3 0 1 illegal: Lossy FEN conversion
2rn1NN1/5qQ1/BB1R3Q/1P3Rb1/2r2Pp1/K1B3kN/PN1nb1r1/2Bnq3 b - f3 0 1 illegal: No possible last move
1nb4K/1kq3P1/4NR1Q/3R1BBn/1pPPN1r1/p5bB/1b1Q4/Q1n1Br1Q b - c3 0 1 illegal: No possible last move, all moves rejected
n3r1R1/P5K1/3rp3/B1Q2p1r/1RqpPP1N/6QQ/1bB2R1N/2RQk1nr b - e3 1 2 illegal: Lossy FEN conversion
3NR2n/Q4R2/3n1k1N/r6b/pq1pP3/1B1P1rpP/R2b1BP1/R1BnrNK1 b - e3 0 1 illegal: Lossy FEN conversion
KR2n3/nBN3Pp/rB2Bk2/8/QppPpbQQ/n5NP/5PR1/1qB5 b - d3 0 2 illegal: Lossy FEN conversion
1Q2n3/B3pRN1/1B2b1P1/rb2k2P/4npPN/1nq4R/4Pn1K/RQ1B2rR b - g3 0 1 illegal: Lossy FEN conversion
Q1NQqbR1/PQ3rp1/8/2P1n1rR/2PpR1k1/3P2b1/3Kp2n/nBNQ2B1 b - c3 0 1 illegal: Lossy FEN conversion
B7/1r1k2np/rrQBpbQ1/5b2/2nRPpQ1/q4PPP/2N2K2/Qq1R1NB1 b - e3 2 3 illegal: Lossy FEN conversion
N1r2n1k/b2p4/RP1NRp1q/2B1R3/4pPb1/3P2b1/Bn2P1r1/1QKQqN1R b - f3 0 3 legal: proof: b4 c5 bxc5 b5 g4 h5 gxh5 Nc6 a4 Nb8 axb5 Qb6 Bg2 Qc7 Bf1 Qd8 c4 e5 h4 a5 d3 g5 Kd2 a4 b6 f6 c6 Kf7 h6 g4 c5 g3 h5 g2 h7 Kg7 h6+ Kg6 c7 a3 c6 a2 Ba3 e4 Nf3 g1B Kc1 Na6 Nh2 Bb7 c8Q Bd6 c7 Nc5 Nc3 Bg3 Nd5 Ne7 Bh3 Rg8 h8R Qf8 h7 Kg7 Be6 Ng6 Nf1 Na4 Bc5 Nb2 Rh5 Rb8 Re5 B1h2 Bf7 Bc6 Qa6 Bb5 c8N Bc4 Nd6 Rc8 Nc7 Be6 Qb5 Bf5 Na8 Bg4 Rb1 a1Q Ba2 Qe8 Qb4 Nf8 Qbb3 Qg6 Qbc2 Nc4 Re6 Qc3 Rb5 Qe1 Qb1 Nb2 Ra5 Qh5 Ra6 Qh4 Nb5 Bb8 Nd6 Bg3 Re5 Ba7 Re6 Kg6 Re5 Rg7 Rg8 Kh6 h8R+ Kg6 Rh7 Qh5 Rgh8 Rg8 Rh6+ Kg7 Re6 Qg6 Rh5 Qh7 Rhe5 Qg6 Rhh5 Qh6+ Ne3 Kh8 Rh1 Rg5 Nf1 Rh5+ Ne3 Rh4 Re7 Rh2 R7e6 Qh4 Nf1 Rg2 Re7 Qh5 R7e6 Qh6+ f4
1bRBk1B1/qPr1bq2/1NB3nR/1pP4P/pP5R/4K2R/2N3p1/2BQ2r1 b - b3 0 1 illegal: Lossy FEN conversion
3r1Bq1/2N3nP/2q1P1b1/1R1Bp1pP/K2NRpPk/7R/nQr1PN2/3rB3 b - g3 1 2 illegal: Lossy FEN conversion
2B2n1Q/QPb1P2k/2K5/R2R3r/rBN1pPpP/N1P4q/p1Rq4/3n2N1 b - f3 0 2 illegal: Lossy FEN conversion
1K4R1/p1nb4/BPr1N3/1n2QBR1/Pp2qPb1/1r1RB2P/1P6/nqN2Qk1 b - a3 0 1 illegal: Lossy FEN conversion
qBn2R1Q/RP1RN1p1/1q1b3Q/1b1NQ3/PPrkpP2/bP6/3rB3/6nK b - f3 0 1 illegal: Lossy FEN conversion
2R5/1K1Pb3/rPRR1nN1/2p2k1N/p1Pp1nbB/1B3p1P/P2BQ2r/b4Rq1 b - c3 0 1 illegal: No possible last move, all moves rejected
4r1nb/pR1N1p1p/P2RPrB1/5P1n/1K2B1pP/B2bRr2/2R2QP1/1Nq3kr b - h3 0 1 illegal: Lossy FEN conversion
n7/1QPQK1R1/3P2Qk/nr1P4/NBB1nPp1/1pPNR1nr/b3Q3/4b1q1 b - f3 0 1 illegal: Lossy FEN conversion
N1Q5/rp1QN1K1/2pb1B1p/2P2b1P/rPp2rR1/2rnQ3/2PP2nQ/k2R3B b - b3 1 2 illegal: Lossy FEN conversion
RN2knrr/qb2PR2/5b2/p3bb1p/3Q1qp1/5qR1/1Q2n1R1/K1N3bN b k - 0 1 illegal: No proof kernel
r3k3/2r2p1P/3n1pPq/3p4/R1P1q1B1/b1p3BR/nP2N3/qqq2RKb b q - 0 1 illegal: No proof kernel
1b1RkqNr/1B1b1r2/3B2p1/n3n3/2r1rN2/2N3Rn/Knp1QQRp/3Q1b2 b k - 0 1 illegal: No possible last move
rQR1k1n1/BB4b1/1Rp2B2/1bqp2n1/3Q1Qpn/pr1N3N/3R3K/1r1b3b b q - 0 1 illegal: No proof kernel
r1B1knqr/1R1Bq3/3B3R/pN1b1Kn1/3QRp2/Nq3R1n/8/r2qQb2 b k - 0 1 legal: proof: g4 b5 h4 g5 d4 gxh4 e4 c6 a4 bxa4 f4 Bg7 g5 Bf6 d5 cxd5 g6 Bg5 fxg5 dxe4 Bg2 e3 Bh3 Nc6 Bf1 Nb8 Ke2 e5 Kf3 d5 c4 h5 b4 a5 b5 f5 b6 a3 b7 d4 c5 h3 c6 e2 c7 e1Q g7 a2 g6 d3 Be3 d2 Rh2 f4 Ke4 h4 Qa4+ Nd7 b8R Ba6 c8Q Qg3 Bg2 Bf1 Qc3 Nh6 g8B Nf7 Rb7 Qb6 g7 Qb3 Ne2 d1N Qac4 Nf8 Bd2 Qg4 Na3 Qe6 Rc1 a1R Nd4 Qg4 Rh1 h2 Bh3 Qg1 Bc8 Nf2+ Kf5 e4 Qc5 e3 Re1 e2 Q5b4 h3 Ndb5 Bg2 Qbd4 Bd5 Rd1 e1Q Qg3 Bg2 Bb4 Qe7 Re1 Bd5 Re5 Qg2 Rf1 h1B Re4 h2 Bd6 Nh3 Rf3 Qg1 Qh4 Bg2 Qhf2 h1Q Qh4 Ne5 Bge6 Nf7 g8R Qgd1 Rg5 Bf1 Qe1 Qg1 Rh5 Qg8 Rh6 Nfg5 Qa7 Rb8 Qd4 Ra8 Bed7+
r1Rqk2b/Bqp5/1NQ5/3b2qn/bn5R/KQ1Nn2n/2B1qr2/2QRRn2 b q - 0 1 illegal: No proof kernel
R3kbqr/1QQn4/1qN2Q1n/1rnbpB2/b1R4b/1p4n1/3B1KBN/r6Q b k - 0 1 illegal: No proof kernel
rQ2k3/bR1pB3/1q1bB3/Qbr1N1Rb/p6n/1pn1Q3/1b3K2/rqB1QN2 b q - 0 1 illegal: No proof kernel
N3k1Br/n7/1NqR1Rp1/q1N4N/1Qb1B2b/prq1p2K/b1q2B2/1n3B2 b k - 0 1 illegal: No proof kernel
q3kB1r/r2BN3/n3q1NN/b1r4R/Qp2nR1n/1Bp3b1/4b1r1/K1BN3q b k - 0 1 illegal: No possible last move
r3k1nR/3N1N1q/p1n1qr2/Qp2Rr2/N7/P4B2/1bK1b1nb/2RBrB2 b q - 0 1 legal: proof: d4 e5 b4 exd4 f4 c5 bxc5 g5 g4 h6 e3 dxe3 Bb2 Qc7 Bf6 gxf4 g5 Qb6 g6 Qd8 Bg5 hxg5 h4 f5 c4 d5 h5 b5 g7 g4 c6 f3 h6 g3 h7 a6 a3 g2 c7 f2+ Ke2 d4 Kd3 f4 c5 f3 c6 e2 Kd2 e1R Qe2+ Qe7 Rh5 d3 Nh3 g1B Nc3 Qe6 Ng5 Bh2 Rc1 Bc5 Na4 Bd4 Qe3 Bb2 Nf7 Bb7 Re5 Bc8 Bh3 f1Q Qb6 f2 Qa5 Qh1 Bf1 Bb7 c8B Qe4 c7 Nc6 Be2 f1R Bd1 Rf5 Bf3 Nh6 Bd1 Rf8 h8R Ng8 Bf3 Rf6 Bd1 Qh7 Bf3 Qe7 Bcg4 Qe6 c8N Rf5 Ncb6 Bc8 Ng5 R8f6 Nd7 Bb7 Nf7 Bc8 Be2 Bb7 Bgf3 Bc8 Ke3 d2 Kd3 d1N Bf1 Ne3 Bd1 Ng2 Kc2 Bb7 Bf3 Nb8 Bd1 Bf3 Nf8 Nh6 g8B Nc6 Nd7 Bg4 Ndc5 Be2 Nd7 Qg7 Bh7+ Ng8 Bg6 Qh6 Bh5 Qh7 Bf3
1RrBk2r/pN1n1R1q/1Q2n3/2b2bq1/KpPNp3/n4q2/r3b3/1BRR3B b k - 0 1 illegal: No proof kernel
rn2k1n1/2n4B/b1nP3p/np4N1/1R1n3N/bqN1B3/1P1KnB1r/Rr3Q2 b q - 0 1 illegal: No proof kernel
1R2kB1r/5rP1/Q3n2p/nqN5/5bR1/nr1prB1P/1R1rb2p/K1n3BN b k - 0 1 illegal: No proof kernel
1r1nk2r/nr4B1/1Bb5/Nr2bP1R/3n3q/2RB1B2/Q1P1r1qp/n1K1N3 b k - 0 1 legal: proof: b4 a5 h4 g5 a4 gxh4 d4 f5 e4 fxe4 Nh3 c5 Ng1 b5 axb5 cxd4 Rh3 axb4 Rh2 Nf6 Rh1 Ng8 Kd2 e5 f4 d5 g4 h5 b6 h3 g5 d3 b7 b3 f5 h2 g6 e3+ Kc3 d2 Kb2 d4 g7 e4 Na3 h4 Bb5+ Nc6 b8B h3 Qe1 d1R Qe2 d3 Qf2 e2 Bg5 e1R Bd2 e3 Ba5 d2 Qf3 e2 Qe3+ Ne7 g8B Bb7 Ba4 Rb1+ Kc3 d1R Bf4 b2 Ba2 Bg7+ Kb3 Rd7 Bb6 Be5 Qg3 Na7 Bc5 Rb8 Nf3 Nec6 Bh6 Qh4 Bb5 Nd8 Nc4 Bc6 Na5 Rg7 Ka3 Rgb7 Bd3 Rb5 Bg7 R8b7 Rf1 h1Q Bb6 Qg2 Bd5 h2 Rg1 Red1 Ne1 Rd2 Qg4 Rb8 Qc4 Rb7 Nf3 e1N Qa2 Re2 B5e4 Qgh3 Rg4 Qg2 Rg5 Rb8 Rh5 Rb7 Ng1 Nf3 Bd5 Nd4 Nf3 Rc1 Ne1 b1N+ Ka4 Rd1 Bf3 Nd2 Ka3 N2b3 Kb2 Rdd2 Rb1 Na1+ Kc1 Rb8 Rb3 Rb7 Bc4 Rd3 Ra3 Rdb3 Bd3 Rb2 Rc3 Rb8 Bc5 R5b7 Bb6 Rb4 Bf6 Rb5 Bg7
r3k1b1/1Qp2qn1/nNb5/1r1rB3/2KBN3/Rp2P1qB/qq1Bp2P/2bR4 b q - 0 1 illegal: No proof kernel
rRbBk2q/qbN4N/b4Q2/4KRNb/3N1Rb1/5B2/4pNr1/n3brQ1 b q - 0 1 legal: proof: g4 b5 h4 c5 f4 g5 d4 cxd4 a4 gxh4 axb5 Nh6 e3 dxe3 g5 Nc6 f5 Ne5 Ke2 Ng6 fxg6 Ng8 Ke1 Bg7 Bd3 Bh6 Bf1 Bf8 Ke2 f5 Kd3 e5 b4 h5 c4 d5 g7 a5 b6 h3 g6 a4 b7 h2 b8Q f4 c5 f3 b5 f2 b6 a3 b7 d4 Ke4 a2 c6 e2 c7 e1R+ Qe2 h4 Qa7 d3 b8N h3 Nf3 d2 Nd4 d1B Bg5 Bb4 Nd2 Ne7 g8N Nd5 g7 Qd7 Nh6 Rg8 Ng4 Ne3 Bd8 Nc2 Bg2 Rf1 N2f3 Be1 Ng5 Qa4 Kd5 e4 Bf3 e3 Na6 Qa3 Rb1 a1Q Rb8 Qe7 Rg1 h1B Qd2 h2 Qc3 Qd7+ Ke5 Qb2 Qc6 Na1 Qf6 Bg2 Rb4 h1B Qc5 Bh3 Rc4 Bb7 c8R B1g2 Rb8 Bc8 Ra4 Qa7 Qcb6 Qb1 Rh1 Qh7 Qb1 Qh8 Qc1 Rf8 g8N Rg1 Ra5 f1B Nf2 Bhg4 Rh4 Bh1 Rd5 Rg2 Rc5 Bh5 Rf4 Bc4 Nh6 Bde2 Nh7 B4e6 Rcb5 Beg4 Nf7 Bc4 Rd5 e2 Nfg5 Rf7 Nc5 B4a6 Nce6 Rb7 Qd1 Rb1 Ra5 Bd2 Qg1 Rf1 Ke4 Bb4 Raf5 Be1 Ke5 Rh2 Bb7 Be4 Bd5 Rg2 Bb7 Bb1 Bf3 Be4 Nc2 Bd5 Ncd4 Bdb7 Nc7+
rb2k1q1/1r4n1/1pB1B3/3Q4/1Kp2Bbb/4b2b/1NrNrR1Q/BBnRQ3 b q - 0 1 illegal: No possible last move, all moves rejected
2Rnk2r/1Q3N2/3q3p/BK4NB/RnnR1qBb/qN4nq/1B3n2/b2Q4 b k - 0 1 illegal: No proof kernel
r3k3/Nb2b3/1n1Q2Bq/2nq1B2/1KpQ4/B1R3bq/R1RNp2r/2bnQ1Q1 b q - 0 1 illegal: No proof kernel
r3k1qR/5QB1/qq1r1pQR/qN3N2/P1n2b2/5QnB/Kn2R3/1B1qn2b b q - 0 1 illegal: No possible last move
r1QNk1QK/b3nq1N/N3n2B/2rNnpBr/2q5/5P1p/N2R1r2/3b2rR b q - 0 1 illegal: No proof kernel
r1B1k3/1Q2nq2/2Bqq2b/1bB4N/2r2nbB/Qp4K1/NpP1R2B/q1b4R b q - 0 1 illegal: No proof kernel
QRN1kn1r/3pBb2/1B1Pn2R/Q2p1n2/4r2N/2QB1b1b/1K3p1B/4qq1n b k - 0 1 illegal: No proof kernel
r2qk1BN/6K1/B1r3b1/2p2Q1R/1N2Nn2/rB1RnpBr/1np2P1Q/5n1r b q - 0 1 illegal: No proof kernel
r3kb1N/3bp2B/R1B2R1B/1KNB2N1/3r3N/1b3p2/1qq1QnbP/qq4n1 b q - 0 1 illegal: No proof kernel
r1b1krQr/1B3N1Q/2N5/1nbpq2p/QR4BP/1b1K4/1B3r1p/1N1b1Nn1 b k - 0 1 illegal: No proof kernel
bN2k1rr/qNNNNb1B/5r2/pR3nBN/p2bb3/1n5P/8/1nQK3Q b k - 0 1 legal: proof: d4 c5 dxc5 g5 a4 b5 f4 bxa4 fxg5 Qc7 Na3 Qb6 Nb1 Qd8 g4 h5 b4 Qb6 g6 Ba6 g5 Bxe2 Ra3 Qc7 Rg3 Qd8 Rg4 hxg4 c4 d5 b5 e5 h3 a5 b6 f5 c6 d4 g7 d3 b7 f4 g6 g3 c7 e4 c8N g2 c5 e3 c6 f3 c7 Qd4 Nb6 Nh6 g8N Nf5 c8N Bg7 Nh6 Nc6 b8N Ra6 N6d7 Qa7 Na3 Ncd4 Ng8 Rf6 Nge7 Nb3 Qd2 Bd1 Qb2 e2 Bg5 Bc2 Qc1 Bb1 Nb5 Bc2 Ncb6 Bb1 Nc5 d2+ Kf2 d1B Ke1 Bdc2 Nb7 Be4 N6d7 Bd5 Rh2 Bbe4 Rh1 Bf7 Rh2 Na1 Kd2 e1N Bd3 f2 Ne2 f1B Nf4 g1R Nh5 Rg4 Kd1 Nb3 Rb2 Nf3 Bc2 Nfd2 Bb1 Bf8 g7 Bfg2 g8Q Rg3 Qh7 Bg7 Bd3 Nb1 Qh6 Rb6 Qhc6 Bd4 Bc2 Bd3 Qf3 Be4 Qf1 Rbh6 Qh1 Rf6 Bf4 Rgg8 Bg5 Bed5 Bd3 Nh4 Bh7 Nf5 Nc3 Bde4 Ncd5 Na1 Rb5 Nb3 Ndf4 Bf2 Ne6 Bd4 Nbd8 Ba8 Nb7 Be4 Nc7+
1bK1k2r/2b2Q2/p2pn3/Pb2N1Bb/2Q2b1N/4q1p1/5B1B/1bnQQB1N b k - 0 1 illegal: No proof kernel
B1b1k1nr/b3NB1N/2bp2N1/q1R3K1/R1bp1PP1/5qB1/5n1r/1r1Qr2R b k - 0 1 legal: proof: e4 b5 d4 f5 a4 fxe4 axb5 g5 h4 gxh4 Nh3 c5 Ng1 cxd4 Kd2 e5 b4 a5 c4 h5 g4 a4 b6 a3 f3 h3 b5 a2 c5 h2 c6 h4 b7 h3 b6 Bc5 c7 Na6 b8R Nb4 b7 Qf6 Bg2 Ba7 Ne2 Nd3 Nbc3 Nf2 Nf4 e3+ Ke2 e4 Ncd5 d6 Ne7 Qf5 Nfg6 Qf4 Bd2 Qg3 Rc1 a1Q Rc5 Qa5 Be1 Qf4 Nf8 Qf7 Neg6 Qf4 Nh7 Qg3 Rg1 h1B f4 h2 Bf3 Bg2 Rh1 Nd3 Bf2 Qh3 Bg3 Nf2 Qd2 Bf1+ Ke1 Qb6 Qd1 e2 Kd2 e3+ Kc2 Ne4 Kd3 Qa5 Bg2 Bb6 Bf3 Ra6 Bg2 Ba7 Ra8 Rc6 b8N e1R+ Qe2 Rb6 Nc6 Reb1 Nce7 R6b2 Bf3 Bg2 Qf1 e2 Qd1 Bf1 Bg2 Ng5 Be4 Qg2 Bd5 Nh3 Ba2 Qf2 Ke4 Rd2 Be6 Qf3+ Kf5 Nf2 Kg5 e1R Bd5 Bc4 Bb7 Bb8 Ra6 Ba7 Ba8 Qac3 Ra4 Qa5 Rf1 h1B Rg1 Bb7 c8B Ra2 Be6 Bc8 Kh4 Qe2 Kg5 Bc6 Rh1 Qf3 Kh5 Nd3 Kh4 Rh2+ Kg5 Nf2 Bf7+
1N2k1br/2p1B2b/8/r2B2P1/rQrp2KN/1nP1qN2/Rr1R3p/n2Bn2Q b k - 0 1 illegal: No proof kernel
r3kQB1/P3rb2/Q2bp3/K4N2/Np1n2p1/1p2qRR1/qP2B2r/1nq2QN1 b q - 0 1 illegal: No proof kernel
r2bk1qQ/N1r2RnB/2n2nr1/1Q6/R1pQ4/p1Pn1pbK/PN6/2r2BBb b q - 0 1 illegal: No proof kernel
rNr1k1K1/1b3R1p/2pB1p2/1Bq1Qn1r/3q1NpR/1B4RP/1p4P1/Rbbn4 b q - 0 1 illegal: No proof kernel
rR2kN1R/Q5r1/R2R1B2/1nb2bb1/1p2r2N/nPpp2r1/1q1P3K/Nn4R1 b q - 0 2 illegal: No proof kernel
nr2k1qr/2P3P1/1NB2B1n/2q2Q2/1B1pK1n1/2rRQ1N1/Nq2b1p1/1B3b2 b k - 0 1 illegal: No proof kernel
1Q2k2r/1N3p2/b3qP2/1R1rbrnr/1P2p1Q1/4K1b1/N1NNb1Rb/n2Q1B2 b k - 0 1 illegal: No proof kernel
rNN1k3/3nrp2/bRP2q2/1BNqB1R1/2R4b/1qP4q/3b2n1/K2bR1B1 b q - 0 1 legal: proof: d4 b5 g4 g5 a4 d5 axb5 c5 e4 dxe4 f4 gxf4 dxc5 h6 g5 h5 Qg4 hxg4 h4 a5 b4 e5 h5 e3 h6 f3 b6 e4 b7 a4 c6 a3 g6 a2 b5 e2 h7 g3 b6 g2 g7 Ne7 g8R Ng6 Rg7 Nd7 Kd2 e3+ Kc3 e1Q+ Kb2 e2 b8N f2 b7 Qd1 Rh4 e1B Nd2 Nf4 Ne4 Bfb4 Nc5 Bbd2 Ne2 g1Q Ng3 Qh2 Rg5 Qh3 Bb5 f1B Nf5 Ng2 Rc4 Bh4 Ne7 Be2 Rb1 Rg8 h8B Rg6 Ka1 Re6 Be5 Bh5 Bcb2 Qdf3 Rd1 Qb3 Re1 Bd1 Bbd4 Qa5 Bg1 Qd8 Nd5 Qf6 Nb6 Re7 Nba6 Qfe6 b8R Qd5 Rb7 Bb4 Nb8 Bd2 Ra7 Bb7 Nc8 Ba6 Rb7 Qa3 Bc3 Qa5 Kb2 Qc7 Rb6 a1Q+ Kb3 Qa4+ Kb2 Qf4 Be5 Qf6 c3 Qb3+ Ka1
r3knqq/1K3B2/2p1q2n/B1Bn1B1Q/r2q2bP/1P1n4/RR1Q1Q2/7R b q - 0 1 illegal: No possible last move, all moves rejected
r3kR2/8/pR2P1N1/B1P1Q3/bqn1P1n1/n4ppq/B3Rr2/rBKNr3 b q - 0 1 legal: proof: f4 c5 d4 cxd4 a4 h5 g4 hxg4 c4 b5 b4 bxa4 c5 e5 fxe5 Na6 c6 Bc5 bxc5 Nb8 Kd2 g5 h4 f5 e4 d5 h5 a3 c7 f4 e6 f3 h6 g3 h7 a6 Rh3 d3 Rh5 d4 Be2 g2 Nc3 a2 Bf1 g4 Rd5 g3 Nh3 g1Q Bg2 Qh4 Ne2 Nh6 Nf2 Ng4 Nf4 Bd7 c8B Ba4 Ng6 Nc6 Bb7 Nb4 Rd6 Qh3 Bd5 Nc2 Bf1 Na3 Rb6 Qgh2 Rab1 a1R Ba2 Qh1 Qc2 Q1g2 Kd1 d2 Bb2 Qg1 Bc3 Qgh2 Ba5 Qg1 Nh1 Qe3 Bfc4 Qb3 Bd3 Qb4 Qb3 Nc4 Kc2 d1R Nf2 Re1 Nd1 Na3+ Kc1 Nf2 Qc4 Ng4 Bc2 d3 Qc3 Qc4 Kb2 d2 Rc1 Qd4 Bcb1 Qc4 Rc2 Qd4 Nf2 d1N+ Kc1 Nde3+ Nd1 Qb4 Re2 Nec4 Qg7 Rg8 h8R Rf8 Rh6 Rh8 Qe5 Rh7 Rh5 Rd7 Rf5 Rd2 Re3 Rh2 Re2 Rf2 Rf8#
r3k2K/1QP2r1p/NnBpbp1N/2pnpq1Q/1P6/1P2n3/1BR2b2/1R2bB2 b q - 0 1 illegal: No possible last move, all moves rejected
r1q1kb2/1N2b1qn/q5R1/1Br1RBq1/b1QNPn2/4PP1p/KB3r1B/4b3 b q - 0 1 illegal: No proof kernel
q3kqbr/nQQpP1pP/1Kb3pp/3N2R1/r5n1/RN4b1/1Q1P4/b3B1Q1 b k - 0 1 illegal: No proof kernel
r3kNK1/4q3/B3rB2/3Pq2N/1b1PbP2/1Rp3QQ/qPp1qr2/n1R1bn2 b q - 0 1 illegal: No proof kernel
Nb2kn1r/2p3q1/bP1rQB2/rn1P4/BRN1Q1q1/p1Qr1pP1/2P2K2/1n6 b k - 0 1 illegal: No proof kernel
r1rqkn2/r4PBr/q1pn4/1B2p2P/Rq4PP/1R2Q3/2K1PNr1/5Nnb b q - 0 1 illegal: Other
1b1Rk2r/1Bqp2bN/n5bN/B6r/rb1bPp1p/1rn1R3/Q2PPP1P/4K3 b k - 0 3 illegal: Other
rRBbkN2/nqR3BB/1B1rn2r/8/p4bKQ/p1R1Q3/2q2N2/4rBRb b q - 0 1 illegal: No proof kernel
4k1br/3rBN1N/RR2Nr2/1rn5/1b1nBqQ1/1P1RNpr1/4q1b1/K2N3B b k - 0 1 illegal: No proof kernel
N1K1krqr/1r2p3/2N2B2/pR6/1RnBQ3/Pp4b1/BqQ1b1Qq/R1R5 b k - 0 1 illegal: No proof kernel
rQB1k3/n3B2p/2R4r/NbP4n/N2B2Q1/1Nq3bK/1Rp2Q1n/1bQ1n1q1 b q - 0 1 illegal: No proof kernel
4k1Rr/Q3bp1q/b4RBB/p1Npn3/p1pR3r/R2RnB1n/2PR1N2/7K b k - 0 1 illegal: No proof kernel
K3kBBr/Qr1N4/r1bn1br1/3R3N/n4Bnp/1Nb4b/PqR1B2N/3N4 b k - 0 1 illegal: No proof kernel
r1bNk3/n2nQ1pN/4Bn2/2q1P1p1/3ppRQ1/2N1BP2/1Rrn1K2/b3B2R b q - 0 1 illegal: No proof kernel
r2BkN2/p7/B2rR2n/1b3PK1/1Qq1P1Qp/1p3NN1/nb1Rp1p1/1R2bB2 b q - 0 1 illegal: No proof kernel
rRb1kBN1/1qpR4/2B1p1Qr/BrPr1Nqr/2q1P3/RB4p1/nK6/7N b q - 0 1 illegal: No proof kernel
r1b1k2K/N1B2qQ1/3nRPNp/3nb1n1/b4BpP/NQ2N2B/8/n1nR4 b q - 0 1 legal: proof: g4 f5 e4 fxg4 d4 d5 a4 b5 axb5 g5 e5 c5 dxc5 h6 c6 d4 Ra2 d3 Ra3 Rh7 Ra1 Rf7 Qf3 Rf6 Qd1 Rd6 exd6 exd6 Be2 d5 Bf1 d4 Kd2 a5 b4 a4 f4 g3 c4 g4 h4 a3 f5 a2 f6 g2 c7 Be7 b6 Nc6 c5 Bf8 b7 Qd6 b8B Nce7 c6 Bb7 c8N Ng6 c7 Qg3 b5 Qd6 b6 Qh2 Nh3 g1N+ Nf2 Bc5 Ne7 Ne2 c8N Qd6 Na3 Nh8 Na7 Nf7 Qb3 Qc7 Nd1 Bc8 b7 Ng5 Ne3 Bd6 Bh3 Be5 Re1 Qc4 Bc7 Qf7 Rb1 a1N b8Q Ng3 Bb6 Nf5 Bc7 Nd6 Rd1 Bf4 Q8b7 Be5 Ke1 d2+ Kf2 d3 Re1 Bb2 Kg3 d1N Kf4 Nc3 Bd2 Na2 Rbd1 Nde4 Bc1 d2 Re2 Ne6+ Kf5 Be5 Rde1 d1B Rd2 Qf8 Kg6 Nd6 Kh7 Ng5+ Kh8 Qf7 Rd4 Bc2 Bd2 Nc1 Re4 Bd4 Re6 Be5 Rd1 Be4 N3f5 Bc6 Bf4 B6d7 Ne3 Ba4 Qe4 Qf8 Qh7 Qf7 N7f5+ Ne7 Qg7 Nb5 Ra6 Nd5 Ne7 Nd6 Rc6 Nb5 Re6 Nd6 Ng6+
r3k3/4N1q1/b1RQ4/Pb2n1P1/q1nr3n/2Rpb2K/2BNn1R1/1QR1B1Bb b q - 0 1 illegal: No proof kernel
r1B1k2N/1q1R1qn1/1P1b3R/Q1Q4N/1Qnp1q1b/R7/pB1P1n2/KbQq4 b q - 0 1 illegal: No proof kernel
rb2kN1r/r2NBQ1B/p7/1B1RpppQ/3b1Pb1/2n1NRP1/1K1n4/1n2Nq2 b q - 0 1 illegal: No possible last move, all moves rejected
3qk2r/rQ1qPQbp/p4Q1N/BQ4BR/4Bn1P/1b6/2bQ1qN1/Kn1b4 b k - 0 1 legal: proof: d4 b5 b4 c5 f4 cxd4 a4 g5 axb5 e5 Ra3 e4 Rd3 exd3 fxg5 Bg7 Qd2 Bh6 Qd1 Bf8 Kd2 d5 g4 f5 e4 f4 c4 f3 g6 a6 g7 f2 g5 Bb7 e5 Bd6 g6 Qc7 b6 Nf6 g8Q+ Bf8 b5 Bc6 b7 Bd7 c5 Ra7 e6 Nc6 b8B Nh5 g7 Qe5 e7 Nf6 b6 Na5 b7 Bc6 Nf3 Bb5 c6 Ba4 c7 Bc6 Bg2 f1B Ng5 Qf5 Qe6 Nh5 g8Q Nf4 Qf6 Ba4 Nc3 Bc2 Ne2 Qd7 c8Q+ Qd8 Qge6 Bg7 Be4 Bh3 Bc7 Nb3+ Ke1 Bg4 b8Q Nd2 Qcb7 Nb1 Qd2 Bf5 Nf7 Bb3 Nh6 Bg6 Qdb4 Bf5 Ba5 d2+ Kf1 d1B Ke1 d3 Qd2 d4 h3 Nd5 Nf4 Bg6 Ng2 Nf4 h4 Bf5 Rh3 Bg6 Rg3 Bf5 Rg5 Bg6 Qdb4 Bf5 Rh5 d2+ Kf2 d3 Ke3 Bfg4 Q4d6 Bdc2 Kd4 d1Q Qf5 d2 Qbb5+ Rd7 Q8b7 Qe1 Qdd5 d1Q+ Bcd2 Na3 Kc3 Nb1+ Kb2 Qf2 Ka1 Be2 Bc1 Qd3 Qdd4 Bed1 Qc3 Qd5 Be3 Qc6 Qd2 Rc7 Qfd5 Qcd7 Qe6 Ne2 Bg5 Nf4 Q7d5 Ra7 Qdb7 Ra8 Qec4 Ra7 Qf7+
r1b1kb2/r1Nr1n2/3QK1P1/B1pP2p1/5B2/1QPbNN2/3Rq1n1/rRQ2q2 b q - 0 1 illegal: No extended proof kernel
1Q2k2r/2PB2Kn/nB5p/R1b5/1q1BbRP1/b1P1R1np/Q1p1prNN/8 b k - 0 1 illegal: No proof kernel
rQN1kb2/1b1pP3/n1RPNK2/1bp2pR1/q6p/p2R2Q1/1R3P1r/3N3N b q - 1 2 legal: proof: c4 b5 a4 g5 axb5 g4 b4 g3 b6 Nf6 b5 Nd5 b7 Nc6 b6 Nf6 hxg3 Na5 g4 Ng8 g5 Nc6 e4 e5 d4 Nge7 d5 Nd4 Nh3 Nb5 cxb5 Nf5 Bb2 Ng3 Ng1 Nxf1 Bd4 exd4 Ke2 a5 Kf3 f5 Kf4 c5 Ke5 h5 b8N h4 g4 a4 d6 d3 g6 d2 b7 Bh6 g5 Ng3 g7 Rf8 g8R Qb6 g6 Qc6 g7 Qc7 b6 Nf1 Qf3 d1B Rh3 Bg5 Ne2 Ng3 Nc6 Bc1 b8R Bg5 Ncd4 Qd8 Ne6 Nf1 Ng3 Be7 Nh1 Bc2 Qg3 Bg5 Nc3 Be7 Nd1 Bb7 Rc8 a3 Ra2 Bb3 Rc6 Ne3 Rc2 Ba4 Rb2 Bc8 b7 Bb5 b8Q Bb7 Rh8 Nc2 g8N Rf7 Rh5 Bf8 Rg5 Rg7 Ne7 Nb4 Nc8 Qa5 Kf6 Qa4 e5 Rg8 Qg1 Na6 Rd3 Rg7 Qg3 Rg8 Nd4 Rg7 e6 Rg8 e7 Rg7 Qe3 Rg8 Ne6 Rg7 Rh5 Rg2 Qg3 Rh2 Rg5
rR2kr2/q1nR2B1/pQb4p/PB1B3P/qr2n2n/2PP3K/N1nq2N1/1R2b3 b q - 0 1 legal: proof: e4 d5 f4 dxe4 b4 c5 bxc5 g5 Bd3 gxf4 Ba6 Bf5 Bf1 Bc8 Kf2 e5 g4 b5 Kg2 f5 a4 f3+ Kh3 e3 g5 h6 c6 b4 c7 e4 a5 f2 g6 b3 g7 f4+ Qg4 b2 Bc4 f3 Bb5+ Bd7 c8B f1Q+ Kg3 e2 h4 e1N h5 f2 Qf3 e3 Qf4 e2 Qf3 Bb4 Bb7 Ng2 Qf6 e1N Bd5 Na6 Nf3 Qc4 Qb6 f1Q Nh4 Nc7 Nc3 b1R Bb2 a6 Na2 Bc6 Kh3 Nf6 d3 Qff4 Bc3 Rf8 g8R Qd2 Rg7 Qb8 Rd7 Ne4 Bg7 Qa7 Rf1 Bc3 Rff7 Rb4 Rb1 Qb3 Bdc4 Qa4 Bd5 Bf6 c3 Nc2 Nf3 Be5 Ne1 Nh4 Ng2 Bd6 Rf2 Bg3 Rff7 Ne6 Rb7 Be1 Rfd7 Nc7 Rb8+
4k2r/P3Q2R/P2KR1p1/r3p2N/1Nr1p3/N2bPnQP/1pb3nB/3B3b b k - 0 1 illegal: No possible last move, all moves rejected
1b2k1nr/pBR5/BN1K4/2BB1q2/1b1ppBp1/3Q1b2/Nn3R1Q/BN1B3r b k - 0 1 illegal: No proof kernel
r2rk3/4Bb1r/N1QNbB1p/2p1n1R1/NRP5/b1B3Bq/1p1B2R1/4QK2 b q - 0 1 illegal: No possible last move
4kbrr/N4R2/Q1QQ1B2/R3q1b1/1pR2qrn/Bn2n1P1/B1bNK3/6NN b k - 0 1 illegal: No proof kernel
r1Q1k1N1/6pN/N5bb/qR6/1b1rP1Kn/QbrnQ1RR/1Q6/Nr1B2B1 b q - 0 1 legal: proof: f4 b5 g4 h5 gxh5 c5 d4 e5 dxc5 exf4 a4 Ne7 axb5 Ng8 Kf2 d5 Kf3 a5 h4 f5 b4 a4 e4 d4 c4 d3 c6 a3 c5 a2 c7 d2 h6 Qg5 h5 Na6 b6 Qg6 h7 Qg5 b5 Nb4 b7 Qd8 b8Q Bd6 b6 Ne7 c6 Ba6 c8N Qd7 h6 Qe6 b7 Rf8 h8Q Qe5 h7 Nc2 c7 Bc4 Qe2 d1R Nh3 Ng6 Rg1 Bf7 Nd2 Nb4 Ng5 Qa5 Nb3 Rd4 Rb1 a1B Be3 Bc3 Na1 Bd2 Qd3 Bc5 Qa3 Be7 Be2 Bc1 Kf2 f3 Kg3 f4+ Kg4 f2 Qg8 f1B h8R f3 Rg3 f2 Rhh3 Bc5 Nh7 Nh4 Bf3 Bg6 Qgb3 Bc4 Ne7+ Rd8 c8Q f1R Bd4 Bh6 Bg1 Bg8 Rb2 Rb1 Bd1 Rf3 Qc3 Bd5 Ng8 Ba2 Qc1 Rc3 Qe3 Nd3 Rb3 Be7 Rb6 Rcc1 Qe5 Bb3 Qeb2 Bb4 b8N Rc2 Rb5 Rc3 Qc7 Rd6 Na6 Rd4 Qc8+
r3kn2/N2R1pR1/r5rN/QbpB1npR/1pNP4/1KPN2q1/B5rN/B7 b q - 0 1 illegal: No proof kernel
r3k3/1p1RrNN1/BP1K4/Q1Bn1bp1/1n2BR1B/1Q1R1q2/nB1P3p/3b3q b q - 0 1 illegal: No proof kernel
rB2k1n1/1b1B2qP/5R2/3nBn2/b4Pr1/rN1K1pb1/nRQR4/2BQQ2N b q - 0 1 illegal: No proof kernel
rqR1k2r/1R4RR/1RNQ4/bB1bN3/N2Kp2P/pPn5/n3qR1B/n1r5 b k - 0 1 illegal: No proof kernel
1Q1BkN1r/r2Bpq1p/3RP2n/3N3p/4P3/2b1p1p1/BN2R1b1/bR1KB1R1 b k - 0 1 illegal: Other
4k2r/1n1PN1B1/1ppQb1Np/2Rp4/1nR2p2/K3bq1N/PBPB4/2Bb3B b k - 0 1 illegal: No possible last move
r2Qk1rq/6p1/1p1K2P1/4pq1B/B2NbQ1R/NP2P2n/1p2B1qr/R1B1B1n1 b q - 0 1 illegal: No possible last move
r3k3/1Qq4B/BRqRp2N/3q1B2/Nppr1n1p/1PPb3N/6NP/3KQ1r1 b q - 0 3 illegal: No proof kernel
r2qk3/1P2B1Kn/bb6/1P2N2r/p2qQ1B1/N2PnR1n/2rnN2P/2N3NR b q - 0 1 illegal: No proof kernel
rN2kR2/4Bq2/1q2NR2/b3n1n1/1Pb2B1K/1br1P1P1/1NPp2BB/b1Qr4 b q - 0 1 illegal: No possible last move, all moves rejected
Q1bBk2r/1p1n2R1/PR4R1/NPp1nKN1/5p2/nq1P1PB1/5nRb/1Br1b3 b k - 0 1 illegal: No proof kernel
4k1rr/p1q2b1N/p1P5/3Nn1P1/BnNp1B1n/P2P3n/bNPQ2P1/3R1K2 b k - 0 2 illegal: No proof kernel
1B1nk2r/3r1Q1p/r6N/4B1N1/2q1bNKP/2b1N1P1/NN1r1RB1/3rRN1r b k - 0 1 illegal: No proof kernel
n1N1kN1r/2RR1pp1/2r1n3/RQ1qbB2/1PbB1Q1B/7K/2Qr1PP1/q6R b k - 0 1 illegal: No proof kernel
r3kb2/rR2q1R1/1N1Pp2q/3pPrbB/bB1B2K1/1N1P2Q1/3P4/B1N1Rn1n b q - 0 1 illegal: No proof kernel
4k2r/bR2nrQN/1b3P1R/4N1B1/4P1p1/BbP1pBnq/1n2PrP1/BK2R3 b k - 0 1 illegal: Other
r1BBkBn1/P2bRp2/5P2/Q1n3bp/q1P1p1R1/nn1NP1b1/1B3N1P/3R2K1 b q - 0 1 illegal: No possible last move, all moves rejected
r1NRk1br/2p4N/2R4q/R2qb3/1Q1Rr2P/B1P3pB/1RPPq1P1/2K1n2n b kq - 0 1 illegal: No proof kernel
1r3b2/bn6/bbkq1qr1/N2Nb3/1p1p2B1/P6n/1N1BB1B1/N3KbqR b K - 0 1 illegal: No proof kernel
3k2r1/1Rr1np2/2B2PBq/1p2bQ1P/3nb1n1/2N3r1/P3b1rr/R2bK2B b Q - 0 1 illegal: No proof kernel
q3bQ1B/nk5p/2nN2bq/2B1B2b/qn2B3/PpN3rn/2r5/R1bNK2R b K - 0 1 illegal: No proof kernel
1b3QbN/b4r1p/R4n2/1B5N/r1q1QP1q/qpR3P1/qkr4q/R3KN2 b Q - 0 1 illegal: No proof kernel
N1b3bB/p1q5/3n1nkp/5q2/3pB1Bp/N1Br2P1/P1qrB1B1/R1b1K3 b Q - 0 1 legal: proof: e4 e5 d4 f5 c4 g5 Ne2 f4 g3 f3 Bh3 c6 Rg1 c5 Rg2 fxg2 f4 exd4 Qd3 Bh6 b4 Bf8 Qc3 dxc3 bxc5 Bg7 Bf5 Bf8 h4 gxh4 Be6 Qa5 Bh3 Qd8 e5 Kf7 c6 g1Q+ Bf1 b5 c7 d5 e6+ Kg6 c5 b4 e7 c2 c6 h6 Nec3 b3 Na4 b2 Na3 b1B Bd2 Na6 Nb6 Nf6 Bc3 Qc5 Be2 Rb8 Na8 c1Q+ Bd1 Qc2 Be2 Rb2 e8B+ Kh7 Bd7 Kg6 Bdg4 d4 Bgf3 Q5f5 Bg2 Nc5 Be4 Nb7 Bg2 Bd7 c8B Nd6 Bb7 Bc8 c7 Rh7 Bbd5 Re7 Bc6 Re3 Bce4 Ba6 c8B Rd3 Bg4 Bc4 Ba6 Bg8 Bc4 Qc7 Bb5 Rf3 Be2 Rd3 Ba5 Qb3 Bgf1 Nb7 Bd2 Rc3 Bc2 Qd3 f5+ Kf7 Nb5 Ba3 Bg2 Nd6 Bg2f3 Qe4 Bg2 Re3 Ba5 Rf3 Bd3 Rd2 Bc3 Bc1 Na3 Bc2 Nb1 Qbe6 Na3 Ba4 Bc2 Bd7 Bd3 Bc8 Bc2 Nfe8 f6 Kg6 f7 Q6f5 f8B Nf6 Bg7 Re3 Bh8 Qec6 Bce4 Red3 Ba5 Qc2 Bc3
1n6/1qP3k1/qRQ2Nrb/3n3P/P1Q2q2/1qpbnr2/1r2R1qP/R3K1B1 b Q - 0 1 illegal: No proof kernel
2r2r1B/1N1nQp1q/1bp4B/qkq5/2N1NQnN/1b4R1/3Nn1B1/rn2K2R b K - 0 1 legal: proof: f4 a5 b4 axb4 c4 h5 g4 hxg4 c5 e5 fxe5 d6 Nh3 dxc5 Ng1 c4 e4 Kd7 a4 Kc6 d4 g5 h4 b5 a5 g3 e6 g4 e7 b3 e8Q+ Nd7 h5 g2 a6 b2 e5 g3 a7 c3 e6 c2 e7 b4 h6 b3 h7 Nh6 Nd2 b1N Ngf3 g1N Bg2 b2 d5+ Kb5 d6 c6 Ra3 Ng4 Nh4 Qa5 Qf3 Ne2 Qf4 Bg7 Re3 Rf8 h8B Bd4 Rd3 Rb8 a8N Bb6 Qd8 Ba6 e8N Rc8 Rf3 Be3 Nf6 Bb6 Bh3 g2 Rg3 g1Q+ Bf1 Nh2 Ne4 Qc5 Bg2 Ng4 Qe8 Kb4 Qe7 Bc4 Bg7 Kb5 Bh8 Bc7 Nb6 Bb3 Nc4 Bb6 Qfg5 Nbc3 Qh6 b1R Qf4 Ra1 Ndf3 Nb1+ Nfd2 Nb8 d7 Qh5 d8N Qh7 Bcb2 Nd7 Bbg7 Qg6 Nb2 Qh7 Bh6 c1Q+ Nd1 Qa6 Nb7 Qc5 Ne3 Qa5 Nc4
2NR2q1/BN1n3p/1pR1qR1k/Bb2N1n1/2pb1Pb1/3q3b/B2Q2r1/R3K3 b Q - 0 1 illegal: No proof kernel
b5n1/1B3nN1/2N2Bpq/pkp2rP1/3Q2q1/2NRR2r/q4rpr/RR1BK3 b Q - 0 1 illegal: No possible last move
1R3rn1/1bnQ4/2P2n1b/2kpBn2/2q2Q1Q/5qrR/1qNN4/R1nRKn1B b Q - 0 1 illegal: No proof kernel
1q1B1b1Q/1q1NBnrn/b2N4/1Q1B1brr/2P4R/1r2kb2/6pq/RB2K2N b Q - 0 1 illegal: No proof kernel
5b1B/2pQ1nnQ/R3N1b1/P4prB/1rNn1q1n/4Q2B/1rb1Q3/2kbK2R b K - 0 1 legal: proof: f4 a5 b4 axb4 c4 h5 g4 hxg4 c5 e5 fxe5 d6 Nh3 dxc5 Ng1 c4 a4 Kd7 h4 Kc6 e4 Kc5 h5 Kd4 d3 b5 h6 g5 a5 c3 h7 c2 e6 g3 e7 b3 e8B b2 e5 g4 e6 b4 e7 b3 Bf4 c1N Qd2 g2 Ra2 g3 Bd6 Na6 Qc3+ Ke3 Qc6 Rb8 d4 Nc5 d5 Bg4 Bd3 Rb4 Nf3 g1N Nd4 g2 Bf1 Bd1 Ra4 Nh6 Nd2 b1B Ba6 b2 Qd7 Bg6 Ne6 b1B Bc8 Bbc2 Be5 N1b3 d6 Nd4 Nc4+ Kd3 Bg7 f6 Ra1 Nf7 Rb1 Rg8 h8Q f5 Qh7 Rb2 Ba6 Qa8 Be5 Qf3 Bh8 Qf4 Qb5 Kc3 d7 Kd3 d8Q Kc3 Ng5 Ne6 Qdd7 Ng7 Qe5 Kb3 Ne6 Ka2 Bb5 Rb4 Rb3 Ka1 Rd3 Kb1 Qe2 Kc1 Rg3 Nh3 Bc6 Nhg5 Bf3 Rb2 Bg4 Rb4 Bh3 g1R+ Qf1 Rg2 Qe2 Rb2 Rb3 Rg3 Rb6 Rgb3 Ra6 Rb4 Qc6 Ne5 Qd7 Ngf7 Ne3 Bh5 Nc4 Ng6 Qg4 Nh4 Qe2 Nd8 Bf7 Bg6 e8Q Rb6 Qee7 R6b4 Be8 Nf7 Qc5 Qh6 Qce5 Qf4 Q5e3+ Kb1 Q3d3 Bh5 Rc6 Nd6 Bf1 Kc1 Bf7 Nge8 Qdf3 Rg5 Ra6 Ng7 Bh3 Bg6 Qh6 Bh7 Bh5 Bg6 Qh7 Nf7 Qfe3+
Q2n4/2qN3b/RbNn1qr1/1qb2p2/1B3Pn1/5Bk1/Rp1B1Bb1/3RKb1R b K - 0 1 illegal: No proof kernel
2n2R1q/2Q1R1b1/1Np2n1Q/2bb1nB1/qk1p2rq/2Pb2p1/3P1QN1/1R2K2R b K - 0 1 illegal: No possible last move, all moves rejected
3R2b1/qPR4q/1Q1Pn1N1/3k2Br/R2bR1q1/NbRp1p1n/1q6/n3K2R b K - 0 1 illegal: No proof kernel
2N1r1B1/2B3kq/n2Pbb1n/r2PP1q1/B1N2b1b/5r1r/R3nQr1/R3K1R1 b Q - 0 1 illegal: No proof kernel
n6r/2k5/2pQ1pN1/Pn4r1/2Rp1PBr/RQ2brr1/1B1Pb1q1/1bN1K1nR b K - 0 1 illegal: No proof kernel
n1q5/1r1p1B1b/1p1PN1N1/q1q5/RP3b2/1r1k1P1R/2rNnn1r/R2QK2R b Q - 1 2 illegal: No proof kernel
1r6/p1n1rqq1/RqB4N/7R/P4r1q/1p1k1PQP/1b2p1RB/R2bK2R b Q - 0 1 legal: proof: c4 d5 d4 c5 g4 h5 b4 hxg4 bxc5 dxc4 e4 f5 d5 Nc6 Nd2 Nb4 d6 Nd5 exd5 f4 Ne4 Rh6 Ng3 fxg3 Bg2 Rh7 Bf1 Rh8 a4 Kd7 h3 b5 Be3 g5 Nf3 e5 Rg1 e4 Qe2 b4 Nh4 g2 Qd2 g3 Ng6 g4 Bg5 b3 Bh4 c3 Bf6 e3 Bd3 c2 Be4 c1R+ Qd1 Ne7 Bh4 Rh7 Bg5 Rc4 Nh4 Rb8 Qd3 Bg7 Bh6 Bb2 Rf1 g1Q Nf5 g2 Bf4 g3 Nh6 Qf8 Qc3 Qf7 f3 e2 Qg7 Qd4 Rh1 Qdf6 Be5 Qh4 Qg8 Rd4 Qg5 Ba6 Qg6 Bd3 c6+ Kc8 c7 Kd7 c8R Bc2 Rc3 Bd1 Rc6 Rg7 Ra6 Rdb4 Rf1 g1Q Qg5 g2+ Qg3 Qb6 Rh1 Nf5 Bf4 Nd4 Be5 Ne6 Bf4 Kc8 d7+ Kb7 d8R Nc7 Rg8 Rh7 Rg5 Rd4 Rh5 Rc4 Rf1 g1Q Bd6 Qgd4 Rh1 Qdg7 Bf4 Rhh8 Be5 Rhe8 Bf4 Re7 d6+ Qd5 d7 Kc6 d8R Kc5 Rd6 Kd4 Rg6 Qdf7 Bc6 Kc3 Be3 Rce4 Bg1 Kd3 Bh2 Rc4 Qf2 Rd4 Rg2 Rf4 Qg3
3b1r1n/PNPrbk2/q7/2QnBbrR/p5P1/2P2q2/5n2/RN1BK1bQ b Q - 0 1 illegal: No proof kernel
b1r3k1/b2qP1P1/3b4/3p4/P2B1npp/PBrp1BR1/4Q2p/B1nRK2R b K - 0 1 illegal: No proof kernel
8/2b4q/B4RB1/2p3B1/kb1R1BRQ/1qrQQp1q/4nNrn/R3KN1r b Q - 0 1 illegal: No possible last move
1n1Q2Bn/B4bk1/1RNNb1n1/1bpQR1Q1/Rp6/bq2p3/5Bp1/1R2K2R b K - 0 1 illegal: No proof kernel
kb2B3/1n1r4/N2R3n/NB2QR1p/3q1BN1/1Q2bRrq/1n3Bbq/Rn2K3 b Q - 0 1 illegal: No proof kernel
qbBn1B2/2pNQQ2/R2p1Qr1/1q1N1Q1b/Qp3n2/1Nrr4/b4Q1k/R3K3 b Q - 0 1 illegal: No proof kernel
Q7/n2N3r/2Nn2b1/qBpNnbp1/1N1B2r1/Q4BR1/2p1bB1k/RQb1K3 b Q - 0 1 illegal: No proof kernel
2Nbb3/1P1p2BR/pbBQB2R/2rb1r2/1q6/2b1k1N1/rB1nn2Q/4K1QR b K - 0 1 illegal: No proof kernel
2R2r2/q2b3R/1nQbpR2/1nQ1Pn2/1p1N1rpk/2q4B/2Nn3N/RR1BK3 b Q - 0 1 legal: proof: c4 a5 b4 axb4 g4 d5 cxd5 f5 gxf5 h6 Bb2 Na6 Bf6 Nb8 Bg5 hxg5 d4 Kf7 e4 Kf6 a4 c5 h4 b5 f4 e6 e5+ Kf7 a5 b3 h5 b2 d6 b4 a6 c4 f6 c3 h6 Kg6 d5 g4 f7 g3 a7 g2 f5+ Kg5 h7 c2 d7 c1Q d6 g6 f6 Qb6 d8N Qcc5 d7 Qcb5 Nc6 Bd6 f8R Q6c5 d8R Qa4 f7 Nd7 Qc2 Nb6 Na3 b1N Nd4 Ne7 Ngf3+ Kg4 Qc4 g1N Nac2 g5 Nh2+ Kh4 Bh3 g4 Qd5 Qaa5 Qc6 Nd2 Rd7 Rb8 a8B Ne2 Rf1 Qa2 Rf6 Nc3 Rfd8 Rb7 f8Q Nf5 Rc7 Bd7 Rcc8 Qcc4 Qe7 Rf8 h8R+ Kg5 Rhh6 Qa7 Rh7 Rb8 Bb7 Nb5 Ba8 Qc3 Bb7 Bc7 Qec5 Bd6 Ba6 Na3 Be2 Nb5 Bd1 Rf7 Rg7+ Kh4 Rh7+ Nh6 Rf2 Rf4 Rf8 Ra8 Rf6 Rb8 Rc7 Re8 Rc8 Rf8 Rf3 Qc4 Rb3 Qc3 Rhf7 Nf5 Rbb1 Ng3 Re7 Nf5 Rh7+
r4R2/Bn2R3/bPn1Nr2/RnRpq3/2Q5/2r1b1N1/1kNn1nN1/4KB1R b K - 0 1 legal: proof: d4 c5 dxc5 h5 a4 b5 axb5 Nc6 g4 Nb8 e4 hxg4 Qd2 f5 exf5 e5 Bh3 e4 Ra5 e3 Bf1 e2 Qd1 exd1N Ra3 Nh6 Ra1 Ng8 c4 Kf7 h4 Kf6 b4 Ke5 f4+ Kd4 c6 a5 c7 d5 f6 g5 f7 g3 c5 g2 f5 g4 c6 a4 h5 a3 h6 a2 f6 g3 h7 Ba6 c8R Be7 f8N Qd6 c7 Nc3 f7 Nh6 Na3 Nf5 Ne2+ Kd3 Ng6 g1N f8N g2 Be3 Nh3 Ba7 g1N Nh4 Bg5 Ng2 Be3 Nc2 Qe5 Ne6 Rf8 h8R Nd6 Rh7 Nf2 Re7 Kc4 Ng3+ Kb3 Bd3 Kb2 Bf1 Rf4 Rf8 Rf3 c8Q Rf6 Qc4 Nc6 b6 Nce4 b7 Ne2 b8R Ned4 Bd3 Nd2 Rb5 Nb7 Rc5 Rf5 b5 Rf6 b6 Nb5 Rc1 a1R Ncd4 Ka3 Bf1 Kb2 Rd1 Ra3 Nc2 Rb3 Ra1 Rc3 Ra5
1b2Bb2/r1QQpP1N/1B2NrR1/3Bk2q/1pq1b3/1Pp2bn1/3B4/R3K1nR b Q - 0 1 legal: proof: e4 h5 g4 hxg4 c4 f5 exf5 d5 cxd5 a5 b3 a4 Qc2 a3 Qb2 axb2 a4 Kf7 h4 Kf6 d4 c5 f4 g5 d6 b5 h5 g3 a5 c4 h6 g4 h7 b4 a6 c3 d5 g2 d7 g3 d6 Ra7 Bb5 Rc7 a7 Bh6 a8B Qe8 d8Q Rb7 d7 Bf8 Qc7 Qh5 d8Q Ra7 Nd2 b1B Qdd7 Bb7 Ndf3 Nh6 Nd4 B1e4 Bd2 Nc6 Ngf3 g1B Ng5 g2 Nde6 Ne5 Bc6 Rg8 h8B+ Rg7 Ba4 Bh2 Bb5 Bf3 Ba4 Bbe4 Bd5 Nc6 Bb5 Nd4 Ba4 Ne2 Nh7+ Kf7 f6 Ng1 f5 Rg6 Qcd8 Bb8 Q8c7 Ng4 Bg7 Nh2 Bgh6 Nf1 Bhe3 Ng3 Bb6 Kg8 f7+ Kh8 Nd4 Kg7 Bb5 Rh6 f6+ Kg6 Ne6 Kf5 Qcd8 Ke5 Bbc6 Bg7 f8R Rg6 f7 Rf6 Rg8 Bf8 Rg7 N1e2 Rf1 g1Q Rg6 Qc5 Rh1 Ng1 Q7c7+ Kf5 Be8 Qc4 Qcd7 Ke5 Q8c7+
1rB1bN2/1B2n2p/3bnp2/2Q1rP2/bNRq1r1P/1k2Rr2/2B2r1n/R1Q1K1B1 b Q - 0 1 illegal: No proof kernel
N1QrQR1r/1pP1pPn1/B2b2B1/n6b/N7/4Qk2/1bq4P/R2bK1Br b Q - 0 1 legal: proof: c4 a5 e4 f5 exf5 h5 b4 axb4 d4 c5 g4 d5 gxh5 Nc6 Qe2 Qd7 dxc5 Nb8 c6 Qc7 c5 Qd8 Qc4 dxc4 f4 Kf7 a4 Kf6 a5 g5 a6 c3 h6 g4 h7 b3 c7 c2 a7 g3 c6 g2 Be3 c1B Ne2 g1R Nbc3 b2 Nd5+ Kg7 f6+ Kh6 f5+ Kh5 f7 Kg4 f6 b1B Nb6 Bbf5 Nc3 Bh6 f8Q Bf4 Qh6 Kf3 Nca4 Bc2 f7 Bh3 c8B Qc7 Bf5 Nf6 Bg6 Bb2 Qg5 Rd8 h8Q Nh5 Qe8 Ng7 Bc5 Bd6 Qe3+ Kg4 Bd4 Bd1 Bc5 Qc8 c7 Nc6 Bd4 Na5 Bc5 Rb8 a8Q Qf5 Bd4 Qc2 Bc5 Rg3 Ba6 Bg2 Rg1 Bgf3 Qc6 Rh8 Qe8 Rd8 Qb8 Bfe2 Na8 Rg2 Qc3 Kf4 Qc8 Bh5 Qa3 Rf2 Rg3 Rg2 Bg1 Rf2 Qc5 Rg2 Rg5 Kf3 Qe5 Rg3 Qe3+ Kg2 Bgd3 Nf5 Rg8 Ng7 Bf2 Rg4 Bg6 Rg5 Qe5 Kf3 Rf8 Rg1+ Bf1 Rh1 Bg1 Qg2 Ba6 Qc2 Qe3+
n7/2nqbPk1/bPq1NR2/6n1/1r2r1RQ/q1N1r1p1/BP2p2B/RQ2K1B1 b Q - 0 1 illegal: No proof kernel
3R4/nkB2p1p/2P1B2n/p2NbN2/7r/br3Q1r/P1q2RNP/Rbb1K1Q1 b Q - 0 1 legal: proof: f4 d5 c4 c5 cxd5 e5 b4 exf4 g3 fxg3 bxc5 Qg5 Nh3 Qh4 Ng1 Qd8 d4 Kd7 e4 Kc7 e5 g5 e6 b5 d6+ Kb7 d5 g4 e7 g2 e8Q b4 d7 b3 d6 b2 Qee2 g3 Qe3 Nc6 Qed4 Nh6 Q4a4 Rg8 Qh4 Rg4 Be3 Bg7 Nc3 b1R Bc4 Rb3 Be6 Be5 Nh3 g1B Nd5 g2 Qg5 Rh4 Bf4 Be3 Rf1 g1B Qf3 Bc1 Rf2 Ba3 Qgg4 Qf6 d8R Qf5 d7 Qc2 Bg3 a5 Nhf4 Ra6 Ng2 Na7 Qg5 Rab6 Bf4 Rc3 Qgg4 Rbb3 Qgg3 Bh8 Bc7 Be5 Ngf4 Qc1+ Qd1 Qb2 Rf3 Nc6 Rh8 Nf5 d8N+ Ka7 Bd7 Ba6 Nb7 Nh6 Nd6 Be3 Rd8 Bc1 Nf5 Bd3 Rf2 Kb7 Qg1 Na7 Ng2 Bb1 Be6 Rch3 Qf3 Qc2 c6+
3nkBb1/RpR5/2qP1n1q/bP5B/BP1r1p2/2BqN3/1p2bN1r/R2NK3 b Q - 0 1 illegal: No proof kernel
1qQ4n/Nn1pq3/2NPPb2/QPbR2P1/krp5/1N3b1b/r6p/1B2K1BR b K - 0 1 illegal: No proof kernel
1Rqn1bBr/Q2n4/Pq2r1P1/N5Rr/4p3/Pr1bP1k1/2PP1r1N/R3K2n b Q - 0 1 illegal: No proof kernel
1n1Qn3/2r1BN1n/B1Q5/3b4/N3q2q/bQR1Nk1N/p2r1N1q/RB1RK2b b Q - 0 1 illegal: No proof kernel
2rr1b1Q/1Nn1b3/4qN1p/qQQ1p1Bk/QPQ1N3/1R2n3/2B1B1q1/R3K2b b Q - 0 1 illegal: No proof kernel
1bB1n2n/4R1r1/q1RR1n1k/2R2nN1/p7/2nQnbR1/1PrN1BQ1/Q3K2R b K - 0 1 illegal: No proof kernel
1b4n1/1B4b1/1Rb1p3/bQ2r3/1nR2q2/RN1BpN1P/2q2Qr1/1kB1KBBR b K - 0 1 legal: proof: e4 a5 b4 h5 bxa5 f5 g4 fxe4 gxh5 d5 c4 Na6 cxd5 Nb8 a4 Kd7 d4 Kd6 f4 g5 h3 c5 f5 b5 h6 b4 f6 e6 a6 g4 a5 g3 h7 c4 a7 c3 a6 g2 f7 c2 Qh5 b3 Nd2 b2 Nb3 b1Q Ra3 Nc6 Nf3 Bg7 f8Q+ Qe7 Qhe8 Nb4 Qb5 g1B Qf7 Rb8 a8B Bd7 a7 Qf6 Bb7 Qf4 a8B Bc6 Ba6 Qa2 B8b7 Bh2 Qf6 Re8 Qh4 Rf8 Qf2 Rf5 Bd3 Re5 Bf1 Ke7 d6+ Kf6 d5 Kf5 d7 e3 d8B Ke4 d6 Qb1 d7 Bg3 Bh4 Qb2 Bd2 c1B d8R Qc2 Rc8 Bb2 Rb8 Bd4 Rc8 Bb6 Bc1 Ba5 Rb8 Ne7 Rc8 Rd8 h8R Rd2 Rhd8 Ng8 Rd6 Bh2 Qg3 Rg2 Qf2 Bd5 Rb6 Bc6 Qfe2 Rgg5 Bf2 Rg2 Bg1 Bg3+ Qf2 Bh2 Na1 Bg3 Nh4 Kd4 Nb3+ Kc3 Nf3 Bh2 Bd2+ Kb2 Bc1+ Kb1 Qc5 Bg3 Bad3 Bh4 Qc4 Be7 Qa6 Bd6 Qb5 Bb8 Rc7 Be8 Rc3 Bc6 Rc4
br2QB2/4qPn1/2QNq3/4nBn1/1kn2Q2/1R1Rn1N1/4RN2/3nK1NR b K - 0 1 legal: proof: d4 d5 c4 e5 cxd5 f5 dxe5 h5 a4 h4 Qd4 h3 Qg4 Qh4 gxh3 Qf6 h4 fxg4 h5 Qd8 Na3 a5 Rb1 b5 Bh3 b4 Nf3 b3 Bf1 Ra6 Ra1 Rb6 Ng1 Rb5 axb5 a4 Nb1 a3 Bh3 a2 Bf1 Ba3 bxa3 Bf5 Bh6 Bd7 Bc1 Bc8 h4 Kd7 e4 g5 f4 c5 d6 g3 h6 b2 b6 Kc6 e6 g2 d7 g4 h5 g3 a4 c4 e5 Kc5 b7 c3 f5 c2 a5 Qe7 d8R Bd7 a6 Qd6 f6 Qe7 a7 Nc6 a8Q Be8 b8Q Bd7 h7 Na7 h6 Bb5 f7 Be8 Nd2 b1N Bd3 Nf6 Nf1 Nd2 Rb1 a1N Rb3 Nb5 Bf5 Nc4 Rdd3 Nc3 Qa4 Rg8 h8N Nh5 h7 Nd1 Bh6 c1N Ng6 Bc6 h8R Ng7 Nf4 Ba8 Nfh3 Rf8 Nf2 Rg8 Ngh3 g1Q Qd7 Rd8 Re8 g2 Qdb7 Qh2 Ng1 Qh3 Ng3 Rc8 Qe4 Qg4 Qbb7 Rb8 Qf4 Qg6 Ra3 Qgf6 Qc6+ Kb4 Rac3 Qf8 e7 Qe6 Rc8 Qd8 e8N Qg5 Nd6 Qge7 N1e2 g1N Re8 Nh3 Ng1 Ng5 Ra3 Nh5 Bf8 Ng7 Rd8 Nab3 Re8 Nd2 Rac3 Nf1 Ra3 Qh6 e6 Nfe3 Rac3 Qc7 e7 Qe6 Rd8 Qa7 e8Q Qae7 Rc8 Nb3 Rc2 Nc5 Re2 Nd7 Rc7 Ne5 Rb7+ Ka5 Rb5+ Ka4 Rbb3+ Ka5 Rbc3 Kb4 Rb3+
4Bn1R/3B4/1N1r1Pn1/bRp2qn1/2rQ3r/1N1b3n/kn1NQ2B/R1B1K2Q b Q - 0 1 illegal: No possible last move
4RRb1/1r5q/QrbP2pb/4r2Q/1Bn1n2q/BNN2bR1/7k/1BQQK2R b K - 0 1 illegal: No possible last move
r2q2N1/3n3Q/NR3BQb/BnP3Qq/Bq2nr2/k4Q1r/b2N3B/2n1K2R b K - 0 1 illegal: No proof kernel
2B1krr1/1nQ3q1/4np2/Nr1N1N1q/1p2P2N/1q1NQb2/B2BN1N1/4K2R b K - 0 1 legal: proof: c4 a5 f4 e5 fxe5 d5 cxd5 a4 h4 a3 g3 Nh6 bxa3 Nf5 a4 Nh6 a5 Ng8 a4 h6 h5 Qd7 Ra3 Be7 Rd3 Bh4 gxh4 Qe7 Rg3 Qd8 Rg5 hxg5 d4 b5 e4 c5 a6 g6 d6 g4 e6 g5 a7 f6 e7 c4 a5 c3 d5 b4 d7+ Kf7 e8N g3 h6 c2 a6 g4 h7 g2 h5 g3 d6 Nc6 h6 Nd4 Qe2 Nb3 Ng7 Qe8 d8Q Qe5 d7 Qc3+ Bd2 Qf3 Nc3 c1R+ Nd1 Rc3 Nf5 Na5 Nb2 Nb3 Nd3 Qf4 Qe3 Qf3 Ne2 g1Q Qc7 g2 d8N+ Ke8 Nb7 Qh5 Na5 Rb8 a8B Nc5 a7 Ne6 Bd5 Rc5 a8N Rcb5 Ba2 Ne7 Nb6 Rf8 h8N Nc6 h7 Ncd8 Ng6 Nb7 h8N Qgh2 Ngf4 g1Q Nbd5 Qg7 Nhg6 Q2h3 Ngh4 Bd7 Qeb6 Qe3 Bh3 Bc8 Nc1 Qb3 Ncd3 Ng5 Nde7 Kf7 Nfg3 Rg8 Qe3 Bg4 Nfg2 Rbf8 Nd5+ Ke8 Qd4 Bf3 Bc8 Ne6 Ngf5 Qgf7 Qdc5 Qg7 Qe3
3B3k/R1n1b3/1R3b1r/Q3P2b/3qpR1Q/Qr1N4/P1NB1N1b/Rb1nK3 b Q - 0 1 legal: proof: c4 d5 cxd5 h5 b4 a5 bxa5 Ra6 g4 Ra7 gxh5 Ra8 e4 f5 d4 e6 e5 Rh6 Bd3 Rh7 dxe6 Rh6 d5 Rh8 Be4 fxe4 h4 g5 f4 c5 a6 b5 a7 c4 e7 Kf7 e8R Kg7 f5 g4 h6+ Kh7 d6 c3 d7 g3 h5 b4 f6 b3 f7 b2 Rh4 c2 Qd2 g2 Re6 Bg7 f8Q Nf6 Rb6 Nd5 Nh3 g1B Rf4 Na6 Nf2 Bf6 Na3 b1B Qa5 Nac7 Bd2 c1B Nc2 Bb2 Qfa3 Rb8 a8R Ne3 Ra7 Kg8 h7+ Kg7 Rd6 Rb3 Rb6 Nd1 h6+ Kf7 Q3b4 Ba3 Qba4 Be7 Qa3 Qe8 d8B Bh2 Nh3 Bg4 Nf2 Rf8 h8N+ Kg8 Ng6 Qd7 h7+ Kg7 Qd6 Bh5 Qda3 Qd4 h8Q+ Kf7 Qh6 Rh8 Qg5 Kg8 Qh4 Rh6 Rf5 Bg3 Nf4 Kh8 Nd3 Bh2 Rf4
4rB2/b2qpn2/1q2B3/B1N1P1k1/q5pR/P6b/1N1R3R/q1BQKB1R b K - 0 1 legal: proof: d4 b5 b4 h5 g4 c5 d5 f5 gxf5 d6 Qd3 Nc6 dxc6 c4 c7 d5 Qh3 d4 Qxh5+ Kd7 Qh7 Ke8 c3 a5 cxd4 Ra6 d5 Rc6 dxc6 axb4 f4 Kf7 h4 Kf6 e4 g5 a3 b3 h5 b4 h6 b2 Nd2 b1Q Ra2 b3 Ngf3 c3 Ne5 g4 Nec4 c2 Nb2 Bd7 c8B Qb6 c7 Bg7 e5+ Kf7 f6 Bb5 f5 Qc6 Ne4 Qd5 Nc5 Qa1 Bd7 Qd4 c8R Qa4 Rd8 Bc6 Bc8 Bg2 Rd2 Bh3 Be6+ Ke8 Nd1 b2 f7+ Kf8 Rdh2 b1Q Nb2 Bf6 Qg6 Bg5 h7 Nh6 Rd2 Rg8 h8R Be3 Qg5 Bd4 Qe3 Kg7 f6+ Kg6 f8B Kh5 Qf3 Kg5 Qd1 Nf7 Rh4 Qd7 Bg7 Re8 Rdh2+ Be3 Bd2 c1Q Ba5 Qcc2 Bh6+ Kg6 Bg5 Qca4 Bf4 Bd4 Bc1 Be3 Rd2 Kg5 Rdh2 Nh8 f7 Qg6 f8B Nf7 Rd2 Bg1 Na6 Ba7 Nc5 Qgb1 Nc4 Qb6 Rdh2+ Kg6 Rad2 Kg5 Nb2
k7/N3Bp1q/1p1p1BBR/1b3Qb1/nP1Rn3/3BRP2/1rB1n1rp/N3K2R b K - 0 1 legal: proof: d4 e5 dxe5 b5 a4 Na6 axb5 Nb8 h3 Be7 h4 Bf8 b6 g5 hxg5 Bb7 Qd6 Bc8 b7 Qe7 Qh6 Qd8 Qb6 cxb6 b4 a5 e4 h5 c4 h4 g4 a4 g6 h3 f3 h2 e6 a3 c5 a2 e7 Rh3 g5 Nc6 b8B Nf6 e5 Rh6 g7 Ra3 g8R Ra7 g6 Na5 c6 Rh3 g7 Nb7 c7 Ne4 Bd3 Nbc5 Ne2 Rh6 Nec3 Rh5 Bg5 Ra4 Nd2 Rh7 Nb5 Ra3 Rd1 a1N Rh8 Rh4 g8B Na4 Rh6 Ra2 Bh7 Nb3 Bf6 Rb2 Na7 Nc1 Nb3 Ne2 Na1 Rg4 Bg6 Ba6 c8Q Rg2 Bd6 Bb5 Bc2 Bg7 Rd4 Bf8 Qc5 Qc8 Qd5 Qc4 Qe6 Qd3 Qf5 Bg7 Bc7 d6 Bd8 Qb3 Bd3 Qe6 Bc2 Kd7 e8R Bf8 Bde7 Kc7 Bd3 Kb7 Bc2 Qc8 e6 Qc7 Rc8 Qb8 Rc3 Ka8 Re3 Bg7 Bf8 Qb7 e7 Qc7 Bd3 Qc2 e8B Bh8 B8e7 Bg7 Rh4 Bh6 Rh5 Bg5 Rh6 Qc8 Bd7 Qg8 Be6 Qg7 Bb3 Qh7 Bbc2
2nqnQ1Q/1b4N1/1p2b1N1/1P2P2N/2bB2Q1/p3RB1Q/1rq5/1kb1K1RR b K - 0 1 illegal: No proof kernel
2bb2r1/2b1Q2Q/q1RP2PB/Qn1n1B1R/1N3rb1/1Nn4R/5rr1/Q3K1kR b K - 0 1 illegal: No possible last move
n3B1qb/4Q2r/3q2bR/B2QPQR1/Q1r1pNrB/1b4P1/p1N5/Rk2K1n1 b Q - 0 1 illegal: No possible last move
2bNB1Q1/4kq2/2q2qr1/1rpn1N2/B4R2/1QP1pb2/bb2P1Q1/R1BBKRn1 b Q - 0 1 illegal: No proof kernel
5n1r/b2P1B1R/B1br1Qq1/PBk1P1N1/3p1B2/qq1bb2n/5Q1N/4K1NR b K - 0 1 illegal: No proof kernel
B3NBr1/R2pnqqN/1N2b2r/Q2Q2p1/7P/1N1Pn1kn/1Q4Pb/R3K1bq b Q - 0 1 illegal: No proof kernel
kn3b1B/N2NB1p1/2BBP3/1bn2q1Q/1R2r3/1P2nbQ1/n3R1Pr/Rb2K3 b Q - 0 1 illegal: No possible last move, all moves rejected
2b2Nn1/rRQ2p1n/1r3npB/NqPkb1P1/2q1N1QN/5R1B/3P4/Rb2K3 b Q - 0 1 illegal: No proof kernel
n5Bb/2b1N1q1/6NP/p1Q1PP1r/r3Bq2/NBn2b1k/P1p5/R1QbKR2 b Q - 0 1 illegal: No proof kernel
n3b2B/RN4bp/4Pq2/p2rNpk1/3p1Rn1/3PBPQ1/1p4PN/R3K1nN b Q - 1 2 illegal: No proof kernel
3nb1Qn/4r2R/1r3Pb1/1p1Q1n2/P4PP1/nPN1B3/r1BN1rk1/R3K1bN b Q - 0 1 illegal: No proof kernel
R1qB3N/5Q1R/nqp1Q3/N4b2/B2qbkN1/1N2n3/1r1n1NBR/1N2K2R b K - 0 1 illegal: No proof kernel
1NnBQ1b1/1QBn3B/Qq4Q1/1pNBRp2/Rb6/2q4r/2Nn2rB/R3K2k b Q - 0 1 legal: proof: f4 a5 b4 e5 fxe5 d5 bxa5 h5 c4 h4 cxd5 h3 gxh3 Bd6 h4 Be7 h5 Bf8 e4 Ke7 a4 g5 d4 b5 h4 c5 h6 f6 d6+ Ke6 h5 c4 h7 g4 h6 c3 d5+ Kd7 a6 g3 a5 c2 a7 g2 a6 Bg7 e6+ Ke8 d7+ Ke7 e5 Bf8 Nd2 Qa5 d8N Bg7 d6+ Kf8 d7 Ke7 Qf3 Qc7 Rh4 Qd6 Nc6+ Kf8 d8B Nd7 e7+ Kf7 e8R Kg6 e6 Kg5 e7 Qc5 Nb3+ Qe3+ Ne2 g1N Nc5 Bf8 Nb8 Bb7 Rha4 Qf4 Nd4 Kh4 Bd3 Qh2 Bf4 Bd5 Bfc7 Qd6 Qg2 Qb6 Qg6 Kh3 Bh2 Bf3 Be4 Bd1 Bdc7 c1Q Nc2 Qb2 Bd5 f5 Bd8 Ngf6 Bhc7 Rg8 h8B Ne4 h7 Nd6 Be5 Nc8 h8Q+ Bh5 Qhf6 Bf3 Bb3 Bd5 Bh2 Rg7 Qc6 Bg8 Qb7 Rh7 Nc6 Rb8 a8Q Qh8 a7 Rg7 Qh7+ Kg2 Qg6+ Kh1 Qa6 Rh7 Q8b7 Rh3 a8B Qf6 Bf7 Qd4 Qh6 Qb2 Bg6 Qc3+ Qd2 Qh8 Nd3 Na7 Qh6 Bc4 Qc8 Ne2 Bh7 Ng3 Qh5 Nf1 Qg5 Bg7 Nc5 Nd2 Qg4 Bc3 Qh5 Bb4 Qf7 Rb7 Bcd6 Qc3 Nb8 Ne5 Qfe6 Bd5 Qg8 Rd7 B6c7 Rd6 Bc6 Rg6 Qcb7 Rg2 Qg6 Bg8 Bd5 Nc8 Rf8 Qb2 Rf6 Qc3 e8Q Nd7 Re6 Qa5 Re3 Qb6 Re5
3bb2Q/1r1p1rRp/qn2p1q1/3B2N1/R1Q3Qk/R1B4P/R1b1B2Q/R2NK3 b Q - 0 1 illegal: No possible last move, all moves rejected
1R2qq2/r1pbB3/1PkR1n1R/rN3BR1/n3p3/b4Q2/RP3B2/2rNKN1R b K - 0 1 legal: proof: e4 b5 c4 d5 cxd5 f5 exf5 h5 a4 h4 axb5 h3 gxh3 Rh6 h4 Rh7 h5 Rh8 h4 Kd7 d4 a5 f4 e5 f6 g5 h6 g4 h5 e4 h7 g3 f5 g2 b6 a4 h6 a3 d6 a2 f7 Ra4 d5 Ra5 f6 Ra4 Be3 Ra8 Bf2 Ra4 Nd2 Ba6 Nh3 g1Q Qf3 Be7 f8R Qg6 f7 Nf6 Rg8 Be2 f8R Qg2 Rg5 Rg8 h8N Qg3 h7 Ne8 Nf7 Qc8 h8R Ba6 Rh6 Qf4 Bc4 Nf6 Nf1 Qe8 Be2 Kc8 d7+ Kb7 d8R Nbd7 d6 Nc5 d7 Ra5 Nd6+ Kc6 Nb5 Bc8 Bc4 Qd6 Be6 Na4 Bg4 Qf4 Bf5 Rh8 Rfg8 Ba3 R8g6 Qd6 Rg8 Qdf8 R8g6 Bb7 Rb8 Bc8 d8B Bd7 Be7 Rg8 Ng1 Ra7 Ne2 Rg7 Nec3 Rf7 Rd1 a1R Rg8 Rc1 R8g6 Rc2 Ra1 Rc1+ Nd1 Rg7 Bd8 Re7 Ra2 Re6 Be7 Re5 Nd6 Ng8 Rf6 Rea5 Re6 Nf6 Nb5+ Kd5 Re5+ Kc6 Rd5 Rc2 Rd3 Rc1 Rd6+
2NqB3/pPQR4/R2r4/1rQ1q1qn/8/PBQ2kn1/b1QrnN1B/R3KQ2 b Q - 0 1 illegal: No proof kernel
Q5n1/3pknR1/B1R5/qqb1BNPr/1qQ1N3/3NpbB1/2rP1R2/RR2K3 b Q - 0 1 legal: proof: e4 a5 c4 f5 exf5 g5 b4 b5 cxb5 g4 bxa5 g3 hxg3 Bh6 g4 Bg7 g5 Bf8 f4 e5 g4 c5 a4 h5 b6 h4 a6 c4 a7 h3 a5 h2 f6 c3 a6 c2 f5 e4 b7 e3 f7+ Ke7 g6 Nc6 b8R Nd4 g5 Rh5 f6+ Ke6 g7 Bd6 f8R Qa5 f7 Bc5 Bb2 c1Q Nf3 Nf6 g8N Qa2 Ne7 Bb7 Nc3 Nh7 Ne4 Qac4 Ne5 Bb4 Nf5 Qa2 Nd3 Qcb1 Qc1 Nb5 Be5 Nd6 Rg8 Bd5 f8B Nf7 Bfd6 Nf6 Rg7 Ng8 Rg1 h1Q Rg2 Qg1 Rf2 Qg4 Bg3 Bb7 Bde5 Qa5 Rc8 Rb8 a8Q Bc5 a7 Qbb5 Qc4+ Bd5 Rc7 Rc8 Rb7 Qba6 Rbb1 Q6b5 Qb7 Rc6 a8R Qh4 Ra6 Qf4 Nfd6 Ke7 Qa8 Rc7 Rc6 Qh4 Nc3 Bf3 Be2 Qd4 Nce4 Qdc3 Bf1 Qcb4 Be2 Rc8 Nf5+ Ke8 Qc2 Bd6 Nb2 Qbb6 Ba6 Q6b5 Nd3 Be7 Rh6 Bd6 Nd4 Ke7 Qb3 Rc2 Qc4 Bc5 Rd6 Qaa4 Rc6 Qaa5 Nf5#
3q1b2/2N1RP1B/7N/3p1r1R/2rN1n2/Qr1PpbkR/2q1b2R/RBBBK3 b Q - 0 1 legal: proof: e4 a5 c4 f5 exf5 h5 g4 b5 gxh5 Nc6 b4 Na7 bxa5 b4 Bg2 Rb8 Bf1 Nb5 cxb5 Ra8 f4 Kf7 h4 Kf6 a4 c5 b6 e5 h6 g5 h5 b3 b7 e4 b8R d6 h7 g4 a6 b2 h6 c4 a7 e3 a5 c3 a6 g3 Nf3 c2 Rh4 g2 Rb7 g1Q Nc3 b1B Re7 Rb8 a8B Qb6 a7 Qa5 Nd4 Qh2 Be2 Qb6 Ncb5 Rb7 Nc7 Rb8 Be4 Bd7 a8B Ba4 d3 Be8 Bad5 Bd7 Ba2 d5 Qd2 Bc8 Qb4 Qd6 Qa3 Rb3 Bd1 Qd8 Re6+ Kf7 f6 Ne7 f5 Ng6 Re5 Rg8 h8R Nf4 h7 Rg5 Rh5 Qg2 Rh2 Bh6 Rhe8 Bf8 h8R Be6 R8h4 Rh5 Bb2 c1R Re7+ Kg8 f7+ Kh7 f6+ Kh6 Rf5 Rc4 Bc1 Bc2 Bb1 Bc8 Rg5 Bg4 Bh7 Bf3 Rge5 Be2 Nf5+ Kg5 R7e6 Be7 f8N Bf3 f7 Bd6 Ng6 Bf8 Nge7 Be2 Nc6 Bf3 R4h3 Kg4 Re7 Rg5 Ncd4 Be2 Ng7 Rf5 Rh6 Kg3 R6h4 Rf6 Reh5 Rf5 Nge8 Bf3 Nf6 Be2 Ng4 Bf3 Be2 Bd1 Nh6 Qa8 Bf1 Qc2 Bh3 Bde2 Bg4 Bg2 Bf3 Qd8 Bg4 Bef1 Be2 Bf3 Bd1 B1e2 R4h3+
rrRNR3/3p1rq1/n3P1NB/Bbp1Q1b1/pR5R/1N2PB1n/N7/k3K2R b K - 0 1 illegal: No proof kernel
1k2qQrn/qNR1NQ1b/RB1NP3/1r6/2b5/1R2P2r/n1NP4/Rbb1K2B b Q - 0 1 illegal: No proof kernel
1Q5R/8/3r2kp/b1RqR3/bp2bN1P/1Q1RPPB1/2bN4/R1BBKnnr b Q - 0 1 illegal: No proof kernel
3Nn1Qk/3r3p/P1QbPp1q/2B5/1R1RpPB1/N3P1n1/2b1nN2/4KbRR b K - 1 2 legal: proof: d4 d5 c4 b5 cxd5 e5 h4 g5 hxg5 a5 b4 e4 bxa5 Ra6 Be3 Re6 Bc1 Re5 dxe5 Ke7 Qa4 Kd7 Qd1 Ke8 a4 c5 g4 c4 f4 b4 d6 f6 e6 c3 d7+ Ke7 g6 c2 a6 b3 a7 b2 a8R Bb7 a5 Bg7 g5 Kf8 e3 Qe8 d8N Ne7 Qd6 Kg8 Nh3 Nf5 Nf2 Qf8 Ra4 Na6 Rb8 Nc7 Na3 b1B Bh3 Ng3 Rd4 Ne8 Bg4 Ba6 Rbb4 Bf1 a6 Bh6 Bd2 c1N Qc6 Nce2 Bc3 Bc2 Bd2 Qc5 Bc3 Bf8 Bd2 Bd6 Bc1 Kf8 g7+ Ke7 g6 Qh5 Bd2 Qh6 Bc3 Rf8 g8Q Rf7 g7 Qh4 Qh8 Qh6 g8R Rg7 Ba1 Rf7 Rg5 Rg7 Qg8 Rf7 Qg6 Kf8 Bb2 Ra7 Qg8+ Ke7 Rdc4 Rd7 Bh5 Nf5 Rgg1 Nfg3 Bc3 Bb3 Bg4 Bc2 Qg6 Kf8 Bd4 Rf7 Bc5 Rd7 Qf5 Kg8 Qg5+ Kh8 Rd4 Qh5 Qg6 Qh6 Qg8+
4q2b/1B1NqqB1/2N1k1pp/1N5P/1rr1Q1P1/1R1PP2p/2B2rP1/2nNK2R b K - 0 1 illegal: Other